diff options
819 files changed, 14848 insertions, 22474 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 2e3f919485f4..6a5f34b4d5b9 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -32,7 +32,7 @@ Description: Description of the physical chip / device for device X. Typically a part number. -What: /sys/bus/iio/devices/iio:deviceX/timestamp_clock +What: /sys/bus/iio/devices/iio:deviceX/current_timestamp_clock KernelVersion: 4.5 Contact: linux-iio@vger.kernel.org Description: @@ -1290,7 +1290,7 @@ KernelVersion: 3.4 Contact: linux-iio@vger.kernel.org Description: Unit-less light intensity. Modifiers both and ir indicate - that measurements contains visible and infrared light + that measurements contain visible and infrared light components or just infrared light, respectively. Modifier uv indicates that measurements contain ultraviolet light components. @@ -1413,6 +1413,16 @@ Description: the available samples after the timeout expires and thus have a maximum delay guarantee. +What: /sys/bus/iio/devices/iio:deviceX/buffer/data_available +KernelVersion: 4.16 +Contact: linux-iio@vger.kernel.org +Description: + A read-only value indicating the bytes of data available in the + buffer. In the case of an output buffer, this indicates the + amount of empty space available to write data to. In the case of + an input buffer, this indicates the amount of data available for + reading. + What: /sys/bus/iio/devices/iio:deviceX/buffer/hwfifo_enabled KernelVersion: 4.2 Contact: linux-iio@vger.kernel.org diff --git a/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt index f413e82c8b83..1e6ee3deb4fa 100644 --- a/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt +++ b/Documentation/devicetree/bindings/iio/adc/amlogic,meson-saradc.txt @@ -15,7 +15,6 @@ Required properties: - "clkin" for the reference clock (typically XTAL) - "core" for the SAR ADC core clock optional clocks: - - "sana" for the analog clock - "adc_clk" for the ADC (sampling) clock - "adc_sel" for the ADC (sampling) clock mux - vref-supply: the regulator supply for the ADC reference voltage diff --git a/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt b/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt index 674e133b7cd7..034fc2ba100e 100644 --- a/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/aspeed_adc.txt @@ -8,6 +8,7 @@ Required properties: - reg: memory window mapping address and length - clocks: Input clock used to derive the sample clock. Expected to be the SoC's APB clock. +- resets: Reset controller phandle - #io-channel-cells: Must be set to <1> to indicate channels are selected by index. @@ -15,6 +16,7 @@ Example: adc@1e6e9000 { compatible = "aspeed,ast2400-adc"; reg = <0x1e6e9000 0xb0>; - clocks = <&clk_apb>; + clocks = <&syscon ASPEED_CLK_APB>; + resets = <&syscon ASPEED_RESET_ADC>; #io-channel-cells = <1>; }; diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt index 552e7a83951d..6469a4cd2a6d 100644 --- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt @@ -17,6 +17,11 @@ Required properties: This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING , IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH +Optional properties: + - dmas: Phandle to dma channel for the ADC. + - dma-names: Must be "rx" when dmas property is being used. + See ../../dma/dma.txt for details. + Example: adc: adc@fc030000 { @@ -31,4 +36,6 @@ adc: adc@fc030000 { vddana-supply = <&vdd_3v3_lp_reg>; vref-supply = <&vdd_3v3_lp_reg>; atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>; + dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>; + dma-names = "rx"; } diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt index 48bfcaa3ffcd..e8bb8243e92c 100644 --- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt +++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt @@ -62,6 +62,15 @@ Required properties: - st,adc-channels: List of single-ended channels muxed for this ADC. It can have up to 16 channels on stm32f4 or 20 channels on stm32h7, numbered from 0 to 15 or 19 (resp. for in0..in15 or in0..in19). +- st,adc-diff-channels: List of differential channels muxed for this ADC. + Depending on part used, some channels can be configured as differential + instead of single-ended (e.g. stm32h7). List here positive and negative + inputs pairs as <vinp vinn>, <vinp vinn>,... vinp and vinn are numbered + from 0 to 19 on stm32h7) + Note: At least one of "st,adc-channels" or "st,adc-diff-channels" is required. + Both properties can be used together. Some channels can be used as + single-ended and some other ones as differential (mixed). But channels + can't be configured both as single-ended and differential (invalid). - #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in Documentation/devicetree/bindings/iio/iio-bindings.txt @@ -111,3 +120,18 @@ Example: ... other adc child nodes follow... }; + +Example to setup: +- channel 1 as single-ended +- channels 2 & 3 as differential (with resp. 6 & 7 negative inputs) + + adc: adc@40022000 { + compatible = "st,stm32h7-adc-core"; + ... + adc1: adc@0 { + compatible = "st,stm32h7-adc"; + ... + st,adc-channels = <1>; + st,adc-diff-channels = <2 6>, <3 7>; + }; + }; diff --git a/Documentation/devicetree/bindings/iio/health/max30102.txt b/Documentation/devicetree/bindings/iio/health/max30102.txt index 8629c18b0e78..ef2ca0a0306f 100644 --- a/Documentation/devicetree/bindings/iio/health/max30102.txt +++ b/Documentation/devicetree/bindings/iio/health/max30102.txt @@ -1,9 +1,11 @@ Maxim MAX30102 heart rate and pulse oximeter sensor +Maxim MAX30105 optical particle-sensing module * https://datasheets.maximintegrated.com/en/ds/MAX30102.pdf +* https://datasheets.maximintegrated.com/en/ds/MAX30105.pdf Required properties: - - compatible: must be "maxim,max30102" + - compatible: must be "maxim,max30102" or "maxim,max30105" - reg: the I2C address of the sensor - interrupt-parent: should be the phandle for the interrupt controller - interrupts: the sole interrupt generated by the device @@ -12,8 +14,10 @@ Required properties: interrupt client node bindings. Optional properties: - - maxim,red-led-current-microamp: configuration for RED LED current + - maxim,red-led-current-microamp: configuration for red LED current - maxim,ir-led-current-microamp: configuration for IR LED current + - maxim,green-led-current-microamp: configuration for green LED current + (max30105 only) Note that each step is approximately 200 microamps, ranging from 0 uA to 50800 uA. diff --git a/Documentation/devicetree/bindings/iio/light/uvis25.txt b/Documentation/devicetree/bindings/iio/light/uvis25.txt new file mode 100644 index 000000000000..3041207e3f3c --- /dev/null +++ b/Documentation/devicetree/bindings/iio/light/uvis25.txt @@ -0,0 +1,23 @@ +* ST UVIS25 uv sensor + +Required properties: +- compatible: should be "st,uvis25" +- reg: i2c address of the sensor / spi cs line + +Optional properties: +- interrupt-parent: should be the phandle for the interrupt controller +- interrupts: interrupt mapping for IRQ. It should be configured with + flags IRQ_TYPE_LEVEL_HIGH, IRQ_TYPE_EDGE_RISING, IRQ_TYPE_LEVEL_LOW or + IRQ_TYPE_EDGE_FALLING. + + Refer to interrupt-controller/interrupts.txt for generic interrupt + client node bindings. + +Example: + +uvis25@47 { + compatible = "st,uvis25"; + reg = <0x47>; + interrupt-parent = <&gpio0>; + interrupts = <0 IRQ_TYPE_EDGE_RISING>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index 48c7ff07bfdc..64c47587d1d4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -270,6 +270,7 @@ ACCES 104-QUAD-8 IIO DRIVER M: William Breathitt Gray <vilhelm.gray@gmail.com> L: linux-iio@vger.kernel.org S: Maintained +F: Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8 F: drivers/iio/counter/104-quad-8.c ACCES PCI-IDIO-16 GPIO DRIVER @@ -859,6 +860,8 @@ M: Michael Hennerich <Michael.Hennerich@analog.com> W: http://wiki.analog.com/ W: http://ez.analog.com/community/linux-device-drivers S: Supported +F: Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523 +F: Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4350 F: drivers/iio/*/ad* F: drivers/iio/adc/ltc2497* X: drivers/iio/*/adjd* @@ -4145,6 +4148,7 @@ DEVANTECH SRF ULTRASONIC RANGER IIO DRIVER M: Andreas Klinger <ak@it-klinger.de> L: linux-iio@vger.kernel.org S: Maintained +F: Documentation/ABI/testing/sysfs-bus-iio-distance-srf08 F: drivers/iio/proximity/srf*.c DEVICE COREDUMP (DEV_COREDUMP) @@ -6850,6 +6854,8 @@ R: Peter Meerwald-Stadler <pmeerw@pmeerw.net> L: linux-iio@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio.git S: Maintained +F: Documentation/ABI/testing/configfs-iio* +F: Documentation/ABI/testing/sysfs-bus-iio* F: Documentation/devicetree/bindings/iio/ F: drivers/iio/ F: drivers/staging/iio/ @@ -7331,17 +7337,16 @@ F: drivers/tty/ipwireless/ IPX NETWORK LAYER L: netdev@vger.kernel.org -S: Odd fixes -F: include/net/ipx.h +S: Obsolete F: include/uapi/linux/ipx.h -F: net/ipx/ +F: drivers/staging/ipx/ IRDA SUBSYSTEM M: Samuel Ortiz <samuel@sortiz.org> L: irda-users@lists.sourceforge.net (subscribers-only) L: netdev@vger.kernel.org W: http://irda.sourceforge.net/ -S: Maintained +S: Obsolete T: git git://git.kernel.org/pub/scm/linux/kernel/git/sameo/irda-2.6.git F: Documentation/networking/irda.txt F: drivers/staging/irda/ @@ -9408,8 +9413,8 @@ F: drivers/net/ethernet/natsemi/natsemi.c NCP FILESYSTEM M: Petr Vandrovec <petr@vandrovec.name> -S: Odd Fixes -F: fs/ncpfs/ +S: Obsolete +F: drivers/staging/ncpfs/ NCR 5380 SCSI DRIVERS M: Finn Thain <fthain@telegraphics.com.au> @@ -14119,6 +14124,8 @@ UNISYS S-PAR DRIVERS M: David Kershner <david.kershner@unisys.com> L: sparmaintainer@unisys.com (Unisys internal) S: Supported +F: include/linux/visorbus.h +F: drivers/visorbus/ F: drivers/staging/unisys/ UNIVERSAL FLASH STORAGE HOST CONTROLLER DRIVER diff --git a/drivers/Kconfig b/drivers/Kconfig index 152744c5ef0f..ef5fb8395d76 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -211,4 +211,6 @@ source "drivers/mux/Kconfig" source "drivers/opp/Kconfig" +source "drivers/visorbus/Kconfig" + endmenu diff --git a/drivers/Makefile b/drivers/Makefile index e06f7f633f73..7a2330077e47 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -184,3 +184,4 @@ obj-$(CONFIG_FPGA) += fpga/ obj-$(CONFIG_FSI) += fsi/ obj-$(CONFIG_TEE) += tee/ obj-$(CONFIG_MULTIPLEXER) += mux/ +obj-$(CONFIG_UNISYS_VISORBUS) += visorbus/ diff --git a/drivers/iio/accel/bmc150-accel-i2c.c b/drivers/iio/accel/bmc150-accel-i2c.c index f85014fbaa12..8ffc308d5fd0 100644 --- a/drivers/iio/accel/bmc150-accel-i2c.c +++ b/drivers/iio/accel/bmc150-accel-i2c.c @@ -81,9 +81,21 @@ static const struct i2c_device_id bmc150_accel_id[] = { MODULE_DEVICE_TABLE(i2c, bmc150_accel_id); +static const struct of_device_id bmc150_accel_of_match[] = { + { .compatible = "bosch,bmc150_accel" }, + { .compatible = "bosch,bmi055_accel" }, + { .compatible = "bosch,bma255" }, + { .compatible = "bosch,bma250e" }, + { .compatible = "bosch,bma222e" }, + { .compatible = "bosch,bma280" }, + { }, +}; +MODULE_DEVICE_TABLE(of, bmc150_accel_of_match); + static struct i2c_driver bmc150_accel_driver = { .driver = { .name = "bmc150_accel_i2c", + .of_match_table = bmc150_accel_of_match, .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match), .pm = &bmc150_accel_pm_ops, }, diff --git a/drivers/iio/accel/da280.c b/drivers/iio/accel/da280.c index 6c214783241c..d4b555203427 100644 --- a/drivers/iio/accel/da280.c +++ b/drivers/iio/accel/da280.c @@ -11,6 +11,7 @@ #include <linux/module.h> #include <linux/i2c.h> +#include <linux/acpi.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/byteorder/generic.h> @@ -25,7 +26,7 @@ #define DA280_MODE_ENABLE 0x1e #define DA280_MODE_DISABLE 0x9e -enum { da226, da280 }; +enum da280_chipset { da226, da280 }; /* * a value of + or -4096 corresponds to + or - 1G @@ -91,12 +92,24 @@ static const struct iio_info da280_info = { .read_raw = da280_read_raw, }; +static enum da280_chipset da280_match_acpi_device(struct device *dev) +{ + const struct acpi_device_id *id; + + id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!id) + return -EINVAL; + + return (enum da280_chipset) id->driver_data; +} + static int da280_probe(struct i2c_client *client, const struct i2c_device_id *id) { int ret; struct iio_dev *indio_dev; struct da280_data *data; + enum da280_chipset chip; ret = i2c_smbus_read_byte_data(client, DA280_REG_CHIP_ID); if (ret != DA280_CHIP_ID) @@ -114,7 +127,14 @@ static int da280_probe(struct i2c_client *client, indio_dev->info = &da280_info; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = da280_channels; - if (id->driver_data == da226) { + + if (ACPI_HANDLE(&client->dev)) { + chip = da280_match_acpi_device(&client->dev); + } else { + chip = id->driver_data; + } + + if (chip == da226) { indio_dev->name = "da226"; indio_dev->num_channels = 2; } else { @@ -158,6 +178,12 @@ static int da280_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(da280_pm_ops, da280_suspend, da280_resume); +static const struct acpi_device_id da280_acpi_match[] = { + {"MIRAACC", da280}, + {}, +}; +MODULE_DEVICE_TABLE(acpi, da280_acpi_match); + static const struct i2c_device_id da280_i2c_id[] = { { "da226", da226 }, { "da280", da280 }, @@ -168,6 +194,7 @@ MODULE_DEVICE_TABLE(i2c, da280_i2c_id); static struct i2c_driver da280_driver = { .driver = { .name = "da280", + .acpi_match_table = ACPI_PTR(da280_acpi_match), .pm = &da280_pm_ops, }, .probe = da280_probe, diff --git a/drivers/iio/accel/kxsd9-i2c.c b/drivers/iio/accel/kxsd9-i2c.c index 98fbb628d5bd..38411e1c155b 100644 --- a/drivers/iio/accel/kxsd9-i2c.c +++ b/drivers/iio/accel/kxsd9-i2c.c @@ -63,3 +63,6 @@ static struct i2c_driver kxsd9_i2c_driver = { .id_table = kxsd9_i2c_id, }; module_i2c_driver(kxsd9_i2c_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("KXSD9 accelerometer I2C interface"); diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index bfd4bc806fc2..7a2da7f9d4dc 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * mma8452.c - Support for following Freescale / NXP 3-axis accelerometers: * @@ -13,9 +14,6 @@ * Copyright 2015 Martin Kepplinger <martink@posteo.de> * Copyright 2014 Peter Meerwald <pmeerw@pmeerw.net> * - * This file is subject to the terms and conditions of version 2 of - * the GNU General Public License. See the file COPYING in the main - * directory of this archive for more details. * * TODO: orientation events */ @@ -135,7 +133,7 @@ struct mma8452_event_regs { u8 ev_count; }; -static const struct mma8452_event_regs ev_regs_accel_falling = { +static const struct mma8452_event_regs ff_mt_ev_regs = { .ev_cfg = MMA8452_FF_MT_CFG, .ev_cfg_ele = MMA8452_FF_MT_CFG_ELE, .ev_cfg_chan_shift = MMA8452_FF_MT_CHAN_SHIFT, @@ -145,7 +143,7 @@ static const struct mma8452_event_regs ev_regs_accel_falling = { .ev_count = MMA8452_FF_MT_COUNT }; -static const struct mma8452_event_regs ev_regs_accel_rising = { +static const struct mma8452_event_regs trans_ev_regs = { .ev_cfg = MMA8452_TRANSIENT_CFG, .ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE, .ev_cfg_chan_shift = MMA8452_TRANSIENT_CHAN_SHIFT, @@ -284,7 +282,7 @@ static const int mma8452_samp_freq[8][2] = { }; /* Datasheet table: step time "Relationship with the ODR" (sample frequency) */ -static const unsigned int mma8452_transient_time_step_us[4][8] = { +static const unsigned int mma8452_time_step_us[4][8] = { { 1250, 2500, 5000, 10000, 20000, 20000, 20000, 20000 }, /* normal */ { 1250, 2500, 5000, 10000, 20000, 80000, 80000, 80000 }, /* l p l n */ { 1250, 2500, 2500, 2500, 2500, 2500, 2500, 2500 }, /* high res*/ @@ -777,12 +775,12 @@ static int mma8452_get_event_regs(struct mma8452_data *data, & MMA8452_INT_TRANS) && (data->chip_info->enabled_events & MMA8452_INT_TRANS)) - *ev_reg = &ev_regs_accel_rising; + *ev_reg = &trans_ev_regs; else - *ev_reg = &ev_regs_accel_falling; + *ev_reg = &ff_mt_ev_regs; return 0; case IIO_EV_DIR_FALLING: - *ev_reg = &ev_regs_accel_falling; + *ev_reg = &ff_mt_ev_regs; return 0; default: return -EINVAL; @@ -826,7 +824,7 @@ static int mma8452_read_event_value(struct iio_dev *indio_dev, if (power_mode < 0) return power_mode; - us = ret * mma8452_transient_time_step_us[power_mode][ + us = ret * mma8452_time_step_us[power_mode][ mma8452_get_odr_index(data)]; *val = us / USEC_PER_SEC; *val2 = us % USEC_PER_SEC; @@ -883,7 +881,7 @@ static int mma8452_write_event_value(struct iio_dev *indio_dev, return ret; steps = (val * USEC_PER_SEC + val2) / - mma8452_transient_time_step_us[ret][ + mma8452_time_step_us[ret][ mma8452_get_odr_index(data)]; if (steps < 0 || steps > 0xff) diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 460aa58e0159..6fe995cf16a6 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -920,8 +920,6 @@ static const struct iio_trigger_ops st_accel_trigger_ops = { int st_accel_common_probe(struct iio_dev *indio_dev) { struct st_sensor_data *adata = iio_priv(indio_dev); - struct st_sensors_platform_data *pdata = - (struct st_sensors_platform_data *)adata->dev->platform_data; int irq = adata->get_irq_data_ready(indio_dev); int err; @@ -948,9 +946,6 @@ int st_accel_common_probe(struct iio_dev *indio_dev) &adata->sensor_settings->fs.fs_avl[0]; adata->odr = adata->sensor_settings->odr.odr_avl[0].hz; - if (!pdata) - pdata = (struct st_sensors_platform_data *)&default_accel_pdata; - err = st_sensors_init_sensor(indio_dev, adata->dev->platform_data); if (err < 0) goto st_accel_power_off; diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index 39e3b345a6c8..72bc2b71765a 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -158,6 +158,7 @@ config AT91_SAMA5D2_ADC tristate "Atmel AT91 SAMA5D2 ADC" depends on ARCH_AT91 || COMPILE_TEST depends on HAS_IOMEM + depends on HAS_DMA select IIO_TRIGGERED_BUFFER help Say yes here to build support for Atmel SAMA5D2 ADC which is @@ -318,6 +319,8 @@ config HI8435 config HX711 tristate "AVIA HX711 ADC for weight cells" depends on GPIOLIB + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER help If you say yes here you get support for AVIA HX711 ADC which is used for weigh cells diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c index 8a958d5f1905..327a49ba1991 100644 --- a/drivers/iio/adc/aspeed_adc.c +++ b/drivers/iio/adc/aspeed_adc.c @@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/of_platform.h> #include <linux/platform_device.h> +#include <linux/reset.h> #include <linux/spinlock.h> #include <linux/types.h> @@ -53,11 +54,12 @@ struct aspeed_adc_model_data { }; struct aspeed_adc_data { - struct device *dev; - void __iomem *base; - spinlock_t clk_lock; - struct clk_hw *clk_prescaler; - struct clk_hw *clk_scaler; + struct device *dev; + void __iomem *base; + spinlock_t clk_lock; + struct clk_hw *clk_prescaler; + struct clk_hw *clk_scaler; + struct reset_control *rst; }; #define ASPEED_CHAN(_idx, _data_reg_addr) { \ @@ -217,6 +219,15 @@ static int aspeed_adc_probe(struct platform_device *pdev) goto scaler_error; } + data->rst = devm_reset_control_get_exclusive(&pdev->dev, NULL); + if (IS_ERR(data->rst)) { + dev_err(&pdev->dev, + "invalid or missing reset controller device tree entry"); + ret = PTR_ERR(data->rst); + goto reset_error; + } + reset_control_deassert(data->rst); + model_data = of_device_get_match_data(&pdev->dev); if (model_data->wait_init_sequence) { @@ -263,9 +274,10 @@ iio_register_error: writel(ASPEED_OPERATION_MODE_POWER_DOWN, data->base + ASPEED_REG_ENGINE_CONTROL); clk_disable_unprepare(data->clk_scaler->clk); +reset_error: + reset_control_assert(data->rst); clk_enable_error: clk_hw_unregister_divider(data->clk_scaler); - scaler_error: clk_hw_unregister_divider(data->clk_prescaler); return ret; @@ -280,6 +292,7 @@ static int aspeed_adc_remove(struct platform_device *pdev) writel(ASPEED_OPERATION_MODE_POWER_DOWN, data->base + ASPEED_REG_ENGINE_CONTROL); clk_disable_unprepare(data->clk_scaler->clk); + reset_control_assert(data->rst); clk_hw_unregister_divider(data->clk_scaler); clk_hw_unregister_divider(data->clk_prescaler); diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index 755a493c2a2c..4eff8351ce29 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -16,6 +16,8 @@ #include <linux/bitops.h> #include <linux/clk.h> +#include <linux/dma-mapping.h> +#include <linux/dmaengine.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> @@ -100,6 +102,8 @@ #define AT91_SAMA5D2_LCDR 0x20 /* Interrupt Enable Register */ #define AT91_SAMA5D2_IER 0x24 +/* Interrupt Enable Register - general overrun error */ +#define AT91_SAMA5D2_IER_GOVRE BIT(25) /* Interrupt Disable Register */ #define AT91_SAMA5D2_IDR 0x28 /* Interrupt Mask Register */ @@ -167,13 +171,19 @@ /* * Maximum number of bytes to hold conversion from all channels - * plus the timestamp + * without the timestamp. */ -#define AT91_BUFFER_MAX_BYTES ((AT91_SAMA5D2_SINGLE_CHAN_CNT + \ - AT91_SAMA5D2_DIFF_CHAN_CNT) * 2 + 8) +#define AT91_BUFFER_MAX_CONVERSION_BYTES ((AT91_SAMA5D2_SINGLE_CHAN_CNT + \ + AT91_SAMA5D2_DIFF_CHAN_CNT) * 2) + +/* This total must also include the timestamp */ +#define AT91_BUFFER_MAX_BYTES (AT91_BUFFER_MAX_CONVERSION_BYTES + 8) #define AT91_BUFFER_MAX_HWORDS (AT91_BUFFER_MAX_BYTES / 2) +#define AT91_HWFIFO_MAX_SIZE_STR "128" +#define AT91_HWFIFO_MAX_SIZE 128 + #define AT91_SAMA5D2_CHAN_SINGLE(num, addr) \ { \ .type = IIO_VOLTAGE, \ @@ -228,6 +238,28 @@ struct at91_adc_trigger { bool hw_trig; }; +/** + * at91_adc_dma - at91-sama5d2 dma information struct + * @dma_chan: the dma channel acquired + * @rx_buf: dma coherent allocated area + * @rx_dma_buf: dma handler for the buffer + * @phys_addr: physical address of the ADC base register + * @buf_idx: index inside the dma buffer where reading was last done + * @rx_buf_sz: size of buffer used by DMA operation + * @watermark: number of conversions to copy before DMA triggers irq + * @dma_ts: hold the start timestamp of dma operation + */ +struct at91_adc_dma { + struct dma_chan *dma_chan; + u8 *rx_buf; + dma_addr_t rx_dma_buf; + phys_addr_t phys_addr; + int buf_idx; + int rx_buf_sz; + int watermark; + s64 dma_ts; +}; + struct at91_adc_state { void __iomem *base; int irq; @@ -242,6 +274,7 @@ struct at91_adc_state { u32 conversion_value; struct at91_adc_soc_info soc_info; wait_queue_head_t wq_data_available; + struct at91_adc_dma dma_st; u16 buffer[AT91_BUFFER_MAX_HWORDS]; /* * lock to prevent concurrent 'single conversion' requests through @@ -322,11 +355,17 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state) if (state) { at91_adc_writel(st, AT91_SAMA5D2_CHER, BIT(chan->channel)); - at91_adc_writel(st, AT91_SAMA5D2_IER, - BIT(chan->channel)); + /* enable irq only if not using DMA */ + if (!st->dma_st.dma_chan) { + at91_adc_writel(st, AT91_SAMA5D2_IER, + BIT(chan->channel)); + } } else { - at91_adc_writel(st, AT91_SAMA5D2_IDR, - BIT(chan->channel)); + /* disable irq only if not using DMA */ + if (!st->dma_st.dma_chan) { + at91_adc_writel(st, AT91_SAMA5D2_IDR, + BIT(chan->channel)); + } at91_adc_writel(st, AT91_SAMA5D2_CHDR, BIT(chan->channel)); } @@ -340,6 +379,10 @@ static int at91_adc_reenable_trigger(struct iio_trigger *trig) struct iio_dev *indio = iio_trigger_get_drvdata(trig); struct at91_adc_state *st = iio_priv(indio); + /* if we are using DMA, we must not reenable irq after each trigger */ + if (st->dma_st.dma_chan) + return 0; + enable_irq(st->irq); /* Needed to ACK the DRDY interruption */ @@ -350,6 +393,153 @@ static int at91_adc_reenable_trigger(struct iio_trigger *trig) static const struct iio_trigger_ops at91_adc_trigger_ops = { .set_trigger_state = &at91_adc_configure_trigger, .try_reenable = &at91_adc_reenable_trigger, + .validate_device = iio_trigger_validate_own_device, +}; + +static int at91_adc_dma_size_done(struct at91_adc_state *st) +{ + struct dma_tx_state state; + enum dma_status status; + int i, size; + + status = dmaengine_tx_status(st->dma_st.dma_chan, + st->dma_st.dma_chan->cookie, + &state); + if (status != DMA_IN_PROGRESS) + return 0; + + /* Transferred length is size in bytes from end of buffer */ + i = st->dma_st.rx_buf_sz - state.residue; + + /* Return available bytes */ + if (i >= st->dma_st.buf_idx) + size = i - st->dma_st.buf_idx; + else + size = st->dma_st.rx_buf_sz + i - st->dma_st.buf_idx; + return size; +} + +static void at91_dma_buffer_done(void *data) +{ + struct iio_dev *indio_dev = data; + + iio_trigger_poll_chained(indio_dev->trig); +} + +static int at91_adc_dma_start(struct iio_dev *indio_dev) +{ + struct at91_adc_state *st = iio_priv(indio_dev); + struct dma_async_tx_descriptor *desc; + dma_cookie_t cookie; + int ret; + u8 bit; + + if (!st->dma_st.dma_chan) + return 0; + + /* we start a new DMA, so set buffer index to start */ + st->dma_st.buf_idx = 0; + + /* + * compute buffer size w.r.t. watermark and enabled channels. + * scan_bytes is aligned so we need an exact size for DMA + */ + st->dma_st.rx_buf_sz = 0; + + for_each_set_bit(bit, indio_dev->active_scan_mask, + indio_dev->num_channels) { + struct iio_chan_spec const *chan = indio_dev->channels + bit; + + st->dma_st.rx_buf_sz += chan->scan_type.storagebits / 8; + } + st->dma_st.rx_buf_sz *= st->dma_st.watermark; + + /* Prepare a DMA cyclic transaction */ + desc = dmaengine_prep_dma_cyclic(st->dma_st.dma_chan, + st->dma_st.rx_dma_buf, + st->dma_st.rx_buf_sz, + st->dma_st.rx_buf_sz / 2, + DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT); + + if (!desc) { + dev_err(&indio_dev->dev, "cannot prepare DMA cyclic\n"); + return -EBUSY; + } + + desc->callback = at91_dma_buffer_done; + desc->callback_param = indio_dev; + + cookie = dmaengine_submit(desc); + ret = dma_submit_error(cookie); + if (ret) { + dev_err(&indio_dev->dev, "cannot submit DMA cyclic\n"); + dmaengine_terminate_async(st->dma_st.dma_chan); + return ret; + } + + /* enable general overrun error signaling */ + at91_adc_writel(st, AT91_SAMA5D2_IER, AT91_SAMA5D2_IER_GOVRE); + /* Issue pending DMA requests */ + dma_async_issue_pending(st->dma_st.dma_chan); + + /* consider current time as DMA start time for timestamps */ + st->dma_st.dma_ts = iio_get_time_ns(indio_dev); + + dev_dbg(&indio_dev->dev, "DMA cyclic started\n"); + + return 0; +} + +static int at91_adc_buffer_postenable(struct iio_dev *indio_dev) +{ + int ret; + + ret = at91_adc_dma_start(indio_dev); + if (ret) { + dev_err(&indio_dev->dev, "buffer postenable failed\n"); + return ret; + } + + return iio_triggered_buffer_postenable(indio_dev); +} + +static int at91_adc_buffer_predisable(struct iio_dev *indio_dev) +{ + struct at91_adc_state *st = iio_priv(indio_dev); + int ret; + u8 bit; + + ret = iio_triggered_buffer_predisable(indio_dev); + if (ret < 0) + dev_err(&indio_dev->dev, "buffer predisable failed\n"); + + if (!st->dma_st.dma_chan) + return ret; + + /* if we are using DMA we must clear registers and end DMA */ + dmaengine_terminate_sync(st->dma_st.dma_chan); + + /* + * For each enabled channel we must read the last converted value + * to clear EOC status and not get a possible interrupt later. + * This value is being read by DMA from LCDR anyway + */ + for_each_set_bit(bit, indio_dev->active_scan_mask, + indio_dev->num_channels) { + struct iio_chan_spec const *chan = indio_dev->channels + bit; + + if (st->dma_st.dma_chan) + at91_adc_readl(st, chan->address); + } + + /* read overflow register to clear possible overflow status */ + at91_adc_readl(st, AT91_SAMA5D2_OVER); + return ret; +} + +static const struct iio_buffer_setup_ops at91_buffer_setup_ops = { + .postenable = &at91_adc_buffer_postenable, + .predisable = &at91_adc_buffer_predisable, }; static struct iio_trigger *at91_adc_allocate_trigger(struct iio_dev *indio, @@ -388,24 +578,77 @@ static int at91_adc_trigger_init(struct iio_dev *indio) return 0; } -static irqreturn_t at91_adc_trigger_handler(int irq, void *p) +static void at91_adc_trigger_handler_nodma(struct iio_dev *indio_dev, + struct iio_poll_func *pf) { - struct iio_poll_func *pf = p; - struct iio_dev *indio = pf->indio_dev; - struct at91_adc_state *st = iio_priv(indio); + struct at91_adc_state *st = iio_priv(indio_dev); int i = 0; u8 bit; - for_each_set_bit(bit, indio->active_scan_mask, indio->num_channels) { - struct iio_chan_spec const *chan = indio->channels + bit; + for_each_set_bit(bit, indio_dev->active_scan_mask, + indio_dev->num_channels) { + struct iio_chan_spec const *chan = indio_dev->channels + bit; st->buffer[i] = at91_adc_readl(st, chan->address); i++; } + iio_push_to_buffers_with_timestamp(indio_dev, st->buffer, + pf->timestamp); +} - iio_push_to_buffers_with_timestamp(indio, st->buffer, pf->timestamp); +static void at91_adc_trigger_handler_dma(struct iio_dev *indio_dev) +{ + struct at91_adc_state *st = iio_priv(indio_dev); + int transferred_len = at91_adc_dma_size_done(st); + s64 ns = iio_get_time_ns(indio_dev); + s64 interval; + int sample_index = 0, sample_count, sample_size; + + u32 status = at91_adc_readl(st, AT91_SAMA5D2_ISR); + /* if we reached this point, we cannot sample faster */ + if (status & AT91_SAMA5D2_IER_GOVRE) + pr_info_ratelimited("%s: conversion overrun detected\n", + indio_dev->name); - iio_trigger_notify_done(indio->trig); + sample_size = div_s64(st->dma_st.rx_buf_sz, st->dma_st.watermark); + + sample_count = div_s64(transferred_len, sample_size); + + /* + * interval between samples is total time since last transfer handling + * divided by the number of samples (total size divided by sample size) + */ + interval = div_s64((ns - st->dma_st.dma_ts), sample_count); + + while (transferred_len >= sample_size) { + iio_push_to_buffers_with_timestamp(indio_dev, + (st->dma_st.rx_buf + st->dma_st.buf_idx), + (st->dma_st.dma_ts + interval * sample_index)); + /* adjust remaining length */ + transferred_len -= sample_size; + /* adjust buffer index */ + st->dma_st.buf_idx += sample_size; + /* in case of reaching end of buffer, reset index */ + if (st->dma_st.buf_idx >= st->dma_st.rx_buf_sz) + st->dma_st.buf_idx = 0; + sample_index++; + } + /* adjust saved time for next transfer handling */ + st->dma_st.dma_ts = iio_get_time_ns(indio_dev); +} + +static irqreturn_t at91_adc_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct at91_adc_state *st = iio_priv(indio_dev); + + if (st->dma_st.dma_chan) + at91_adc_trigger_handler_dma(indio_dev); + else + at91_adc_trigger_handler_nodma(indio_dev, pf); + + iio_trigger_notify_done(indio_dev->trig); return IRQ_HANDLED; } @@ -414,7 +657,7 @@ static int at91_adc_buffer_init(struct iio_dev *indio) { return devm_iio_triggered_buffer_setup(&indio->dev, indio, &iio_pollfunc_store_time, - &at91_adc_trigger_handler, NULL); + &at91_adc_trigger_handler, &at91_buffer_setup_ops); } static unsigned at91_adc_startup_time(unsigned startup_time_min, @@ -485,10 +728,13 @@ static irqreturn_t at91_adc_interrupt(int irq, void *private) if (!(status & imr)) return IRQ_NONE; - if (iio_buffer_enabled(indio)) { + if (iio_buffer_enabled(indio) && !st->dma_st.dma_chan) { disable_irq_nosync(irq); iio_trigger_poll(indio->trig); - } else { + } else if (iio_buffer_enabled(indio) && st->dma_st.dma_chan) { + disable_irq_nosync(irq); + WARN(true, "Unexpected irq occurred\n"); + } else if (!iio_buffer_enabled(indio)) { st->conversion_value = at91_adc_readl(st, st->chan->address); st->conversion_done = true; wake_up_interruptible(&st->wq_data_available); @@ -510,7 +756,6 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, ret = iio_device_claim_direct_mode(indio_dev); if (ret) return ret; - mutex_lock(&st->lock); st->chan = chan; @@ -541,6 +786,9 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, at91_adc_writel(st, AT91_SAMA5D2_IDR, BIT(chan->channel)); at91_adc_writel(st, AT91_SAMA5D2_CHDR, BIT(chan->channel)); + /* Needed to ACK the DRDY interruption */ + at91_adc_readl(st, AT91_SAMA5D2_LCDR); + mutex_unlock(&st->lock); iio_device_release_direct_mode(indio_dev); @@ -580,9 +828,123 @@ static int at91_adc_write_raw(struct iio_dev *indio_dev, return 0; } +static void at91_adc_dma_init(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct at91_adc_state *st = iio_priv(indio_dev); + struct dma_slave_config config = {0}; + /* + * We make the buffer double the size of the fifo, + * such that DMA uses one half of the buffer (full fifo size) + * and the software uses the other half to read/write. + */ + unsigned int pages = DIV_ROUND_UP(AT91_HWFIFO_MAX_SIZE * + AT91_BUFFER_MAX_CONVERSION_BYTES * 2, + PAGE_SIZE); + + if (st->dma_st.dma_chan) + return; + + st->dma_st.dma_chan = dma_request_slave_channel(&pdev->dev, "rx"); + + if (!st->dma_st.dma_chan) { + dev_info(&pdev->dev, "can't get DMA channel\n"); + goto dma_exit; + } + + st->dma_st.rx_buf = dma_alloc_coherent(st->dma_st.dma_chan->device->dev, + pages * PAGE_SIZE, + &st->dma_st.rx_dma_buf, + GFP_KERNEL); + if (!st->dma_st.rx_buf) { + dev_info(&pdev->dev, "can't allocate coherent DMA area\n"); + goto dma_chan_disable; + } + + /* Configure DMA channel to read data register */ + config.direction = DMA_DEV_TO_MEM; + config.src_addr = (phys_addr_t)(st->dma_st.phys_addr + + AT91_SAMA5D2_LCDR); + config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES; + config.src_maxburst = 1; + config.dst_maxburst = 1; + + if (dmaengine_slave_config(st->dma_st.dma_chan, &config)) { + dev_info(&pdev->dev, "can't configure DMA slave\n"); + goto dma_free_area; + } + + dev_info(&pdev->dev, "using %s for rx DMA transfers\n", + dma_chan_name(st->dma_st.dma_chan)); + + return; + +dma_free_area: + dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE, + st->dma_st.rx_buf, st->dma_st.rx_dma_buf); +dma_chan_disable: + dma_release_channel(st->dma_st.dma_chan); + st->dma_st.dma_chan = 0; +dma_exit: + dev_info(&pdev->dev, "continuing without DMA support\n"); +} + +static void at91_adc_dma_disable(struct platform_device *pdev) +{ + struct iio_dev *indio_dev = platform_get_drvdata(pdev); + struct at91_adc_state *st = iio_priv(indio_dev); + unsigned int pages = DIV_ROUND_UP(AT91_HWFIFO_MAX_SIZE * + AT91_BUFFER_MAX_CONVERSION_BYTES * 2, + PAGE_SIZE); + + /* if we are not using DMA, just return */ + if (!st->dma_st.dma_chan) + return; + + /* wait for all transactions to be terminated first*/ + dmaengine_terminate_sync(st->dma_st.dma_chan); + + dma_free_coherent(st->dma_st.dma_chan->device->dev, pages * PAGE_SIZE, + st->dma_st.rx_buf, st->dma_st.rx_dma_buf); + dma_release_channel(st->dma_st.dma_chan); + st->dma_st.dma_chan = 0; + + dev_info(&pdev->dev, "continuing without DMA support\n"); +} + +static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val) +{ + struct at91_adc_state *st = iio_priv(indio_dev); + + if (val > AT91_HWFIFO_MAX_SIZE) + return -EINVAL; + + if (!st->selected_trig->hw_trig) { + dev_dbg(&indio_dev->dev, "we need hw trigger for DMA\n"); + return 0; + } + + dev_dbg(&indio_dev->dev, "new watermark is %u\n", val); + st->dma_st.watermark = val; + + /* + * The logic here is: if we have watermark 1, it means we do + * each conversion with it's own IRQ, thus we don't need DMA. + * If the watermark is higher, we do DMA to do all the transfers in bulk + */ + + if (val == 1) + at91_adc_dma_disable(to_platform_device(&indio_dev->dev)); + else if (val > 1) + at91_adc_dma_init(to_platform_device(&indio_dev->dev)); + + return 0; +} + static const struct iio_info at91_adc_info = { .read_raw = &at91_adc_read_raw, .write_raw = &at91_adc_write_raw, + .hwfifo_set_watermark = &at91_adc_set_watermark, }; static void at91_adc_hw_init(struct at91_adc_state *st) @@ -599,6 +961,42 @@ static void at91_adc_hw_init(struct at91_adc_state *st) at91_adc_setup_samp_freq(st, st->soc_info.min_sample_rate); } +static ssize_t at91_adc_get_fifo_state(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct iio_dev *indio_dev = + platform_get_drvdata(to_platform_device(dev)); + struct at91_adc_state *st = iio_priv(indio_dev); + + return scnprintf(buf, PAGE_SIZE, "%d\n", !!st->dma_st.dma_chan); +} + +static ssize_t at91_adc_get_watermark(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct iio_dev *indio_dev = + platform_get_drvdata(to_platform_device(dev)); + struct at91_adc_state *st = iio_priv(indio_dev); + + return scnprintf(buf, PAGE_SIZE, "%d\n", st->dma_st.watermark); +} + +static IIO_DEVICE_ATTR(hwfifo_enabled, 0444, + at91_adc_get_fifo_state, NULL, 0); +static IIO_DEVICE_ATTR(hwfifo_watermark, 0444, + at91_adc_get_watermark, NULL, 0); + +static IIO_CONST_ATTR(hwfifo_watermark_min, "2"); +static IIO_CONST_ATTR(hwfifo_watermark_max, AT91_HWFIFO_MAX_SIZE_STR); + +static const struct attribute *at91_adc_fifo_attributes[] = { + &iio_const_attr_hwfifo_watermark_min.dev_attr.attr, + &iio_const_attr_hwfifo_watermark_max.dev_attr.attr, + &iio_dev_attr_hwfifo_watermark.dev_attr.attr, + &iio_dev_attr_hwfifo_enabled.dev_attr.attr, + NULL, +}; + static int at91_adc_probe(struct platform_device *pdev) { struct iio_dev *indio_dev; @@ -674,6 +1072,9 @@ static int at91_adc_probe(struct platform_device *pdev) if (!res) return -EINVAL; + /* if we plan to use DMA, we need the physical address of the regs */ + st->dma_st.phys_addr = res->start; + st->base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(st->base)) return PTR_ERR(st->base); @@ -737,11 +1138,22 @@ static int at91_adc_probe(struct platform_device *pdev) dev_err(&pdev->dev, "couldn't setup the triggers.\n"); goto per_clk_disable_unprepare; } + /* + * Initially the iio buffer has a length of 2 and + * a watermark of 1 + */ + st->dma_st.watermark = 1; + + iio_buffer_set_attrs(indio_dev->buffer, + at91_adc_fifo_attributes); } + if (dma_coerce_mask_and_coherent(&indio_dev->dev, DMA_BIT_MASK(32))) + dev_info(&pdev->dev, "cannot set DMA mask to 32-bit\n"); + ret = iio_device_register(indio_dev); if (ret < 0) - goto per_clk_disable_unprepare; + goto dma_disable; if (st->selected_trig->hw_trig) dev_info(&pdev->dev, "setting up trigger as %s\n", @@ -752,6 +1164,8 @@ static int at91_adc_probe(struct platform_device *pdev) return 0; +dma_disable: + at91_adc_dma_disable(pdev); per_clk_disable_unprepare: clk_disable_unprepare(st->per_clk); vref_disable: @@ -768,6 +1182,8 @@ static int at91_adc_remove(struct platform_device *pdev) iio_device_unregister(indio_dev); + at91_adc_dma_disable(pdev); + clk_disable_unprepare(st->per_clk); regulator_disable(st->vref); diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c index 3836d4222a3e..71a5ee652b79 100644 --- a/drivers/iio/adc/at91_adc.c +++ b/drivers/iio/adc/at91_adc.c @@ -1177,9 +1177,9 @@ static int at91_adc_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); st->reg_base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(st->reg_base)) { + if (IS_ERR(st->reg_base)) return PTR_ERR(st->reg_base); - } + /* * Disable all IRQs before setting up the handler diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c index 60c9e853dd81..031d568b4972 100644 --- a/drivers/iio/adc/axp288_adc.c +++ b/drivers/iio/adc/axp288_adc.c @@ -92,22 +92,14 @@ static const struct iio_chan_spec axp288_adc_channels[] = { }, }; -#define AXP288_ADC_MAP(_adc_channel_label, _consumer_dev_name, \ - _consumer_channel) \ - { \ - .adc_channel_label = _adc_channel_label, \ - .consumer_dev_name = _consumer_dev_name, \ - .consumer_channel = _consumer_channel, \ - } - /* for consumer drivers */ static struct iio_map axp288_adc_default_maps[] = { - AXP288_ADC_MAP("TS_PIN", "axp288-batt", "axp288-batt-temp"), - AXP288_ADC_MAP("PMIC_TEMP", "axp288-pmic", "axp288-pmic-temp"), - AXP288_ADC_MAP("GPADC", "axp288-gpadc", "axp288-system-temp"), - AXP288_ADC_MAP("BATT_CHG_I", "axp288-chrg", "axp288-chrg-curr"), - AXP288_ADC_MAP("BATT_DISCHRG_I", "axp288-chrg", "axp288-chrg-d-curr"), - AXP288_ADC_MAP("BATT_V", "axp288-batt", "axp288-batt-volt"), + IIO_MAP("TS_PIN", "axp288-batt", "axp288-batt-temp"), + IIO_MAP("PMIC_TEMP", "axp288-pmic", "axp288-pmic-temp"), + IIO_MAP("GPADC", "axp288-gpadc", "axp288-system-temp"), + IIO_MAP("BATT_CHG_I", "axp288-chrg", "axp288-chrg-curr"), + IIO_MAP("BATT_DISCHRG_I", "axp288-chrg", "axp288-chrg-d-curr"), + IIO_MAP("BATT_V", "axp288-batt", "axp288-batt-volt"), {}, }; diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c index d10b9f13d557..9430b54121e0 100644 --- a/drivers/iio/adc/hx711.c +++ b/drivers/iio/adc/hx711.c @@ -24,6 +24,9 @@ #include <linux/delay.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> +#include <linux/iio/buffer.h> +#include <linux/iio/trigger_consumer.h> +#include <linux/iio/triggered_buffer.h> #include <linux/gpio/consumer.h> #include <linux/regulator/consumer.h> @@ -89,6 +92,11 @@ struct hx711_data { int gain_set; /* gain set on device */ int gain_chan_a; /* gain for channel A */ struct mutex lock; + /* + * triggered buffer + * 2x32-bit channel + 64-bit timestamp + */ + u32 buffer[4]; }; static int hx711_cycle(struct hx711_data *hx711_data) @@ -145,15 +153,16 @@ static int hx711_wait_for_ready(struct hx711_data *hx711_data) int i, val; /* - * a maximum reset cycle time of 56 ms was measured. - * we round it up to 100 ms + * in some rare cases the reset takes quite a long time + * especially when the channel is changed. + * Allow up to one second for it */ for (i = 0; i < 100; i++) { val = gpiod_get_value(hx711_data->gpiod_dout); if (!val) break; - /* sleep at least 1 ms */ - msleep(1); + /* sleep at least 10 ms */ + msleep(10); } if (val) return -EIO; @@ -195,9 +204,7 @@ static int hx711_reset(struct hx711_data *hx711_data) * after a dummy read we need to wait vor readiness * for not mixing gain pulses with the clock */ - ret = hx711_wait_for_ready(hx711_data); - if (ret) - return ret; + val = hx711_wait_for_ready(hx711_data); } return val; @@ -236,34 +243,40 @@ static int hx711_set_gain_for_channel(struct hx711_data *hx711_data, int chan) return 0; } +static int hx711_reset_read(struct hx711_data *hx711_data, int chan) +{ + int ret; + int val; + + /* + * hx711_reset() must be called from here + * because it could be calling hx711_read() by itself + */ + if (hx711_reset(hx711_data)) { + dev_err(hx711_data->dev, "reset failed!"); + return -EIO; + } + + ret = hx711_set_gain_for_channel(hx711_data, chan); + if (ret < 0) + return ret; + + val = hx711_read(hx711_data); + + return val; +} + static int hx711_read_raw(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, int *val, int *val2, long mask) { struct hx711_data *hx711_data = iio_priv(indio_dev); - int ret; switch (mask) { case IIO_CHAN_INFO_RAW: mutex_lock(&hx711_data->lock); - /* - * hx711_reset() must be called from here - * because it could be calling hx711_read() by itself - */ - if (hx711_reset(hx711_data)) { - mutex_unlock(&hx711_data->lock); - dev_err(hx711_data->dev, "reset failed!"); - return -EIO; - } - - ret = hx711_set_gain_for_channel(hx711_data, chan->channel); - if (ret < 0) { - mutex_unlock(&hx711_data->lock); - return ret; - } - - *val = hx711_read(hx711_data); + *val = hx711_reset_read(hx711_data, chan->channel); mutex_unlock(&hx711_data->lock); @@ -339,6 +352,36 @@ static int hx711_write_raw_get_fmt(struct iio_dev *indio_dev, return IIO_VAL_INT_PLUS_NANO; } +static irqreturn_t hx711_trigger(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct hx711_data *hx711_data = iio_priv(indio_dev); + int i, j = 0; + + mutex_lock(&hx711_data->lock); + + memset(hx711_data->buffer, 0, sizeof(hx711_data->buffer)); + + for (i = 0; i < indio_dev->masklength; i++) { + if (!test_bit(i, indio_dev->active_scan_mask)) + continue; + + hx711_data->buffer[j] = hx711_reset_read(hx711_data, + indio_dev->channels[i].channel); + j++; + } + + iio_push_to_buffers_with_timestamp(indio_dev, hx711_data->buffer, + pf->timestamp); + + mutex_unlock(&hx711_data->lock); + + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + static ssize_t hx711_scale_available_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -387,6 +430,13 @@ static const struct iio_chan_spec hx711_chan_spec[] = { .indexed = 1, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + .scan_index = 0, + .scan_type = { + .sign = 'u', + .realbits = 24, + .storagebits = 32, + .endianness = IIO_CPU, + }, }, { .type = IIO_VOLTAGE, @@ -394,7 +444,15 @@ static const struct iio_chan_spec hx711_chan_spec[] = { .indexed = 1, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), + .scan_index = 1, + .scan_type = { + .sign = 'u', + .realbits = 24, + .storagebits = 32, + .endianness = IIO_CPU, + }, }, + IIO_CHAN_SOFT_TIMESTAMP(2), }; static int hx711_probe(struct platform_device *pdev) @@ -459,10 +517,9 @@ static int hx711_probe(struct platform_device *pdev) * 1 LSB = (AVDD * 100) / GAIN / 1678 [10^-9 mV] */ ret = regulator_get_voltage(hx711_data->reg_avdd); - if (ret < 0) { - regulator_disable(hx711_data->reg_avdd); - return ret; - } + if (ret < 0) + goto error_regulator; + /* we need 10^-9 mV */ ret *= 100; @@ -482,12 +539,27 @@ static int hx711_probe(struct platform_device *pdev) indio_dev->channels = hx711_chan_spec; indio_dev->num_channels = ARRAY_SIZE(hx711_chan_spec); + ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time, + hx711_trigger, NULL); + if (ret < 0) { + dev_err(dev, "setup of iio triggered buffer failed\n"); + goto error_regulator; + } + ret = iio_device_register(indio_dev); if (ret < 0) { dev_err(dev, "Couldn't register the device\n"); - regulator_disable(hx711_data->reg_avdd); + goto error_buffer; } + return 0; + +error_buffer: + iio_triggered_buffer_cleanup(indio_dev); + +error_regulator: + regulator_disable(hx711_data->reg_avdd); + return ret; } @@ -501,6 +573,8 @@ static int hx711_remove(struct platform_device *pdev) iio_device_unregister(indio_dev); + iio_triggered_buffer_cleanup(indio_dev); + regulator_disable(hx711_data->reg_avdd); return 0; diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c index 84a43871f7dc..0635a79864bf 100644 --- a/drivers/iio/adc/ina2xx-adc.c +++ b/drivers/iio/adc/ina2xx-adc.c @@ -44,13 +44,14 @@ #define INA226_MASK_ENABLE 0x06 #define INA226_CVRF BIT(3) -#define INA219_CNVR BIT(1) #define INA2XX_MAX_REGISTERS 8 /* settings - depend on use case */ -#define INA219_CONFIG_DEFAULT 0x399F /* PGA=8 */ +#define INA219_CONFIG_DEFAULT 0x399F /* PGA=1/8, BRNG=32V */ #define INA219_DEFAULT_IT 532 +#define INA219_DEFAULT_BRNG 1 /* 32V */ +#define INA219_DEFAULT_PGA 125 /* 1000/8 */ #define INA226_CONFIG_DEFAULT 0x4327 #define INA226_DEFAULT_AVG 4 #define INA226_DEFAULT_IT 1110 @@ -63,6 +64,14 @@ */ #define INA2XX_MODE_MASK GENMASK(3, 0) +/* Gain for VShunt: 1/8 (default), 1/4, 1/2, 1 */ +#define INA219_PGA_MASK GENMASK(12, 11) +#define INA219_SHIFT_PGA(val) ((val) << 11) + +/* VBus range: 32V (default), 16V */ +#define INA219_BRNG_MASK BIT(13) +#define INA219_SHIFT_BRNG(val) ((val) << 13) + /* Averaging for VBus/VShunt/Power */ #define INA226_AVG_MASK GENMASK(11, 9) #define INA226_SHIFT_AVG(val) ((val) << 9) @@ -79,6 +88,11 @@ #define INA226_ITS_MASK GENMASK(5, 3) #define INA226_SHIFT_ITS(val) ((val) << 3) +/* INA219 Bus voltage register, low bits are flags */ +#define INA219_OVF BIT(0) +#define INA219_CNVR BIT(1) +#define INA219_BUS_VOLTAGE_SHIFT 3 + /* Cosmetic macro giving the sampling period for a full P=UxI cycle */ #define SAMPLING_PERIOD(c) ((c->int_time_vbus + c->int_time_vshunt) \ * c->avg) @@ -110,11 +124,12 @@ enum ina2xx_ids { ina219, ina226 }; struct ina2xx_config { u16 config_default; - int calibration_factor; - int shunt_div; - int bus_voltage_shift; + int calibration_value; + int shunt_voltage_lsb; /* nV */ + int bus_voltage_shift; /* position of lsb */ int bus_voltage_lsb; /* uV */ - int power_lsb; /* uW */ + /* fixed relation between current and power lsb, uW/uA */ + int power_lsb_factor; enum ina2xx_ids chip_id; }; @@ -127,26 +142,28 @@ struct ina2xx_chip_info { int avg; int int_time_vbus; /* Bus voltage integration time uS */ int int_time_vshunt; /* Shunt voltage integration time uS */ + int range_vbus; /* Bus voltage maximum in V */ + int pga_gain_vshunt; /* Shunt voltage PGA gain */ bool allow_async_readout; }; static const struct ina2xx_config ina2xx_config[] = { [ina219] = { .config_default = INA219_CONFIG_DEFAULT, - .calibration_factor = 40960000, - .shunt_div = 100, - .bus_voltage_shift = 3, + .calibration_value = 4096, + .shunt_voltage_lsb = 10000, + .bus_voltage_shift = INA219_BUS_VOLTAGE_SHIFT, .bus_voltage_lsb = 4000, - .power_lsb = 20000, + .power_lsb_factor = 20, .chip_id = ina219, }, [ina226] = { .config_default = INA226_CONFIG_DEFAULT, - .calibration_factor = 5120000, - .shunt_div = 400, + .calibration_value = 2048, + .shunt_voltage_lsb = 2500, .bus_voltage_shift = 0, .bus_voltage_lsb = 1250, - .power_lsb = 25000, + .power_lsb_factor = 25, .chip_id = ina226, }, }; @@ -170,6 +187,9 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev, else *val = regval; + if (chan->address == INA2XX_BUS_VOLTAGE) + *val >>= chip->config->bus_voltage_shift; + return IIO_VAL_INT; case IIO_CHAN_INFO_OVERSAMPLING_RATIO: @@ -197,26 +217,48 @@ static int ina2xx_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->address) { case INA2XX_SHUNT_VOLTAGE: - /* processed (mV) = raw/shunt_div */ - *val2 = chip->config->shunt_div; - *val = 1; + /* processed (mV) = raw * lsb(nV) / 1000000 */ + *val = chip->config->shunt_voltage_lsb; + *val2 = 1000000; return IIO_VAL_FRACTIONAL; case INA2XX_BUS_VOLTAGE: - /* processed (mV) = raw*lsb (uV) / (1000 << shift) */ + /* processed (mV) = raw * lsb (uV) / 1000 */ *val = chip->config->bus_voltage_lsb; - *val2 = 1000 << chip->config->bus_voltage_shift; + *val2 = 1000; + return IIO_VAL_FRACTIONAL; + + case INA2XX_CURRENT: + /* + * processed (mA) = raw * current_lsb (mA) + * current_lsb (mA) = shunt_voltage_lsb (nV) / + * shunt_resistor (uOhm) + */ + *val = chip->config->shunt_voltage_lsb; + *val2 = chip->shunt_resistor_uohm; return IIO_VAL_FRACTIONAL; case INA2XX_POWER: - /* processed (mW) = raw*lsb (uW) / 1000 */ - *val = chip->config->power_lsb; + /* + * processed (mW) = raw * power_lsb (mW) + * power_lsb (mW) = power_lsb_factor (mW/mA) * + * current_lsb (mA) + */ + *val = chip->config->power_lsb_factor * + chip->config->shunt_voltage_lsb; + *val2 = chip->shunt_resistor_uohm; + return IIO_VAL_FRACTIONAL; + } + + case IIO_CHAN_INFO_HARDWAREGAIN: + switch (chan->address) { + case INA2XX_SHUNT_VOLTAGE: + *val = chip->pga_gain_vshunt; *val2 = 1000; return IIO_VAL_FRACTIONAL; - case INA2XX_CURRENT: - /* processed (mA) = raw (mA) */ - *val = 1; + case INA2XX_BUS_VOLTAGE: + *val = chip->range_vbus == 32 ? 1 : 2; return IIO_VAL_INT; } } @@ -353,6 +395,74 @@ static int ina219_set_int_time_vshunt(struct ina2xx_chip_info *chip, return 0; } +static const int ina219_vbus_range_tab[] = { 1, 2 }; +static int ina219_set_vbus_range_denom(struct ina2xx_chip_info *chip, + unsigned int range, + unsigned int *config) +{ + if (range == 1) + chip->range_vbus = 32; + else if (range == 2) + chip->range_vbus = 16; + else + return -EINVAL; + + *config &= ~INA219_BRNG_MASK; + *config |= INA219_SHIFT_BRNG(range == 1 ? 1 : 0) & INA219_BRNG_MASK; + + return 0; +} + +static const int ina219_vshunt_gain_tab[] = { 125, 250, 500, 1000 }; +static const int ina219_vshunt_gain_frac[] = { + 125, 1000, 250, 1000, 500, 1000, 1000, 1000 }; + +static int ina219_set_vshunt_pga_gain(struct ina2xx_chip_info *chip, + unsigned int gain, + unsigned int *config) +{ + int bits; + + if (gain < 125 || gain > 1000) + return -EINVAL; + + bits = find_closest(gain, ina219_vshunt_gain_tab, + ARRAY_SIZE(ina219_vshunt_gain_tab)); + + chip->pga_gain_vshunt = ina219_vshunt_gain_tab[bits]; + bits = 3 - bits; + + *config &= ~INA219_PGA_MASK; + *config |= INA219_SHIFT_PGA(bits) & INA219_PGA_MASK; + + return 0; +} + +static int ina2xx_read_avail(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + const int **vals, int *type, int *length, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_HARDWAREGAIN: + switch (chan->address) { + case INA2XX_SHUNT_VOLTAGE: + *type = IIO_VAL_FRACTIONAL; + *length = sizeof(ina219_vshunt_gain_frac) / sizeof(int); + *vals = ina219_vshunt_gain_frac; + return IIO_AVAIL_LIST; + + case INA2XX_BUS_VOLTAGE: + *type = IIO_VAL_INT; + *length = sizeof(ina219_vbus_range_tab) / sizeof(int); + *vals = ina219_vbus_range_tab; + return IIO_AVAIL_LIST; + } + } + + return -EINVAL; +} + static int ina2xx_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) @@ -395,6 +505,14 @@ static int ina2xx_write_raw(struct iio_dev *indio_dev, } break; + case IIO_CHAN_INFO_HARDWAREGAIN: + if (chan->address == INA2XX_SHUNT_VOLTAGE) + ret = ina219_set_vshunt_pga_gain(chip, val * 1000 + + val2 / 1000, &tmp); + else + ret = ina219_set_vbus_range_denom(chip, val, &tmp); + break; + default: ret = -EINVAL; } @@ -434,25 +552,21 @@ static ssize_t ina2xx_allow_async_readout_store(struct device *dev, } /* - * Set current LSB to 1mA, shunt is in uOhms - * (equation 13 in datasheet). We hardcode a Current_LSB - * of 1.0 x10-3. The only remaining parameter is RShunt. - * There is no need to expose the CALIBRATION register - * to the user for now. But we need to reset this register - * if the user updates RShunt after driver init, e.g upon - * reading an EEPROM/Probe-type value. + * Calibration register is set to the best value, which eliminates + * truncation errors on calculating current register in hardware. + * According to datasheet (INA 226: eq. 3, INA219: eq. 4) the best values + * are 2048 for ina226 and 4096 for ina219. They are hardcoded as + * calibration_value. */ static int ina2xx_set_calibration(struct ina2xx_chip_info *chip) { - u16 regval = DIV_ROUND_CLOSEST(chip->config->calibration_factor, - chip->shunt_resistor_uohm); - - return regmap_write(chip->regmap, INA2XX_CALIBRATION, regval); + return regmap_write(chip->regmap, INA2XX_CALIBRATION, + chip->config->calibration_value); } static int set_shunt_resistor(struct ina2xx_chip_info *chip, unsigned int val) { - if (val <= 0 || val > chip->config->calibration_factor) + if (val == 0 || val > INT_MAX) return -EINVAL; chip->shunt_resistor_uohm = val; @@ -485,11 +599,6 @@ static ssize_t ina2xx_shunt_resistor_store(struct device *dev, if (ret) return ret; - /* Update the Calibration register */ - ret = ina2xx_set_calibration(chip); - if (ret) - return ret; - return len; } @@ -532,19 +641,23 @@ static ssize_t ina2xx_shunt_resistor_store(struct device *dev, * Sampling Freq is a consequence of the integration times of * the Voltage channels. */ -#define INA219_CHAN_VOLTAGE(_index, _address) { \ +#define INA219_CHAN_VOLTAGE(_index, _address, _shift) { \ .type = IIO_VOLTAGE, \ .address = (_address), \ .indexed = 1, \ .channel = (_index), \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \ BIT(IIO_CHAN_INFO_SCALE) | \ - BIT(IIO_CHAN_INFO_INT_TIME), \ + BIT(IIO_CHAN_INFO_INT_TIME) | \ + BIT(IIO_CHAN_INFO_HARDWAREGAIN), \ + .info_mask_separate_available = \ + BIT(IIO_CHAN_INFO_HARDWAREGAIN), \ .info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ), \ .scan_index = (_index), \ .scan_type = { \ .sign = 'u', \ - .realbits = 16, \ + .shift = _shift, \ + .realbits = 16 - _shift, \ .storagebits = 16, \ .endianness = IIO_LE, \ } \ @@ -579,23 +692,18 @@ static const struct iio_chan_spec ina226_channels[] = { }; static const struct iio_chan_spec ina219_channels[] = { - INA219_CHAN_VOLTAGE(0, INA2XX_SHUNT_VOLTAGE), - INA219_CHAN_VOLTAGE(1, INA2XX_BUS_VOLTAGE), + INA219_CHAN_VOLTAGE(0, INA2XX_SHUNT_VOLTAGE, 0), + INA219_CHAN_VOLTAGE(1, INA2XX_BUS_VOLTAGE, INA219_BUS_VOLTAGE_SHIFT), INA219_CHAN(IIO_POWER, 2, INA2XX_POWER), INA219_CHAN(IIO_CURRENT, 3, INA2XX_CURRENT), IIO_CHAN_SOFT_TIMESTAMP(4), }; -static int ina2xx_work_buffer(struct iio_dev *indio_dev) +static int ina2xx_conversion_ready(struct iio_dev *indio_dev) { struct ina2xx_chip_info *chip = iio_priv(indio_dev); - unsigned short data[8]; - int bit, ret, i = 0; - s64 time_a, time_b; + int ret; unsigned int alert; - int cnvr_need_clear = 0; - - time_a = iio_get_time_ns(indio_dev); /* * Because the timer thread and the chip conversion clock @@ -608,23 +716,31 @@ static int ina2xx_work_buffer(struct iio_dev *indio_dev) * For now, we do an extra read of the MASK_ENABLE register (INA226) * resp. the BUS_VOLTAGE register (INA219). */ - if (!chip->allow_async_readout) - do { - if (chip->config->chip_id == ina226) { - ret = regmap_read(chip->regmap, - INA226_MASK_ENABLE, &alert); - alert &= INA226_CVRF; - } else { - ret = regmap_read(chip->regmap, - INA2XX_BUS_VOLTAGE, &alert); - alert &= INA219_CNVR; - cnvr_need_clear = alert; - } + if (chip->config->chip_id == ina226) { + ret = regmap_read(chip->regmap, + INA226_MASK_ENABLE, &alert); + alert &= INA226_CVRF; + } else { + ret = regmap_read(chip->regmap, + INA2XX_BUS_VOLTAGE, &alert); + alert &= INA219_CNVR; + } - if (ret < 0) - return ret; + if (ret < 0) + return ret; + + return !!alert; +} + +static int ina2xx_work_buffer(struct iio_dev *indio_dev) +{ + struct ina2xx_chip_info *chip = iio_priv(indio_dev); + /* data buffer needs space for channel data and timestap */ + unsigned short data[4 + sizeof(s64)/sizeof(short)]; + int bit, ret, i = 0; + s64 time; - } while (!alert); + time = iio_get_time_ns(indio_dev); /* * Single register reads: bulk_read will not work with ina226/219 @@ -640,26 +756,11 @@ static int ina2xx_work_buffer(struct iio_dev *indio_dev) return ret; data[i++] = val; - - if (INA2XX_SHUNT_VOLTAGE + bit == INA2XX_POWER) - cnvr_need_clear = 0; - } - - /* Dummy read on INA219 power register to clear CNVR flag */ - if (cnvr_need_clear && chip->config->chip_id == ina219) { - unsigned int val; - - ret = regmap_read(chip->regmap, INA2XX_POWER, &val); - if (ret < 0) - return ret; } - time_b = iio_get_time_ns(indio_dev); + iio_push_to_buffers_with_timestamp(indio_dev, data, time); - iio_push_to_buffers_with_timestamp(indio_dev, - (unsigned int *)data, time_a); - - return (unsigned long)(time_b - time_a) / 1000; + return 0; }; static int ina2xx_capture_thread(void *data) @@ -667,7 +768,9 @@ static int ina2xx_capture_thread(void *data) struct iio_dev *indio_dev = data; struct ina2xx_chip_info *chip = iio_priv(indio_dev); int sampling_us = SAMPLING_PERIOD(chip); - int buffer_us; + int ret; + struct timespec64 next, now, delta; + s64 delay_us; /* * Poll a bit faster than the chip internal Fs, in case @@ -676,13 +779,43 @@ static int ina2xx_capture_thread(void *data) if (!chip->allow_async_readout) sampling_us -= 200; + ktime_get_ts64(&next); + do { - buffer_us = ina2xx_work_buffer(indio_dev); - if (buffer_us < 0) - return buffer_us; + while (!chip->allow_async_readout) { + ret = ina2xx_conversion_ready(indio_dev); + if (ret < 0) + return ret; - if (sampling_us > buffer_us) - udelay(sampling_us - buffer_us); + /* + * If the conversion was not yet finished, + * reset the reference timestamp. + */ + if (ret == 0) + ktime_get_ts64(&next); + else + break; + } + + ret = ina2xx_work_buffer(indio_dev); + if (ret < 0) + return ret; + + ktime_get_ts64(&now); + + /* + * Advance the timestamp for the next poll by one sampling + * interval, and sleep for the remainder (next - now) + * In case "next" has already passed, the interval is added + * multiple times, i.e. samples are dropped. + */ + do { + timespec64_add_ns(&next, 1000 * sampling_us); + delta = timespec64_sub(next, now); + delay_us = div_s64(timespec64_to_ns(&delta), 1000); + } while (delay_us <= 0); + + usleep_range(delay_us, (delay_us * 3) >> 1); } while (!kthread_should_stop()); @@ -746,7 +879,6 @@ static IIO_CONST_ATTR_NAMED(ina226_integration_time_available, integration_time_available, "0.000140 0.000204 0.000332 0.000588 0.001100 0.002116 0.004156 0.008244"); - static IIO_DEVICE_ATTR(in_allow_async_readout, S_IRUGO | S_IWUSR, ina2xx_allow_async_readout_show, ina2xx_allow_async_readout_store, 0); @@ -780,6 +912,7 @@ static const struct attribute_group ina226_attribute_group = { static const struct iio_info ina219_info = { .attrs = &ina219_attribute_group, .read_raw = ina2xx_read_raw, + .read_avail = ina2xx_read_avail, .write_raw = ina2xx_write_raw, .debugfs_reg_access = ina2xx_debug_reg, }; @@ -860,6 +993,8 @@ static int ina2xx_probe(struct i2c_client *client, chip->avg = 1; ina219_set_int_time_vbus(chip, INA219_DEFAULT_IT, &val); ina219_set_int_time_vshunt(chip, INA219_DEFAULT_IT, &val); + ina219_set_vbus_range_denom(chip, INA219_DEFAULT_BRNG, &val); + ina219_set_vshunt_pga_gain(chip, INA219_DEFAULT_PGA, &val); } ret = ina2xx_init(chip, val); diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 36047147ce7c..29fa7736d80c 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -96,8 +96,8 @@ #define MESON_SAR_ADC_FIFO_RD_SAMPLE_VALUE_MASK GENMASK(11, 0) #define MESON_SAR_ADC_AUX_SW 0x1c - #define MESON_SAR_ADC_AUX_SW_MUX_SEL_CHAN_MASK(_chan) \ - (GENMASK(10, 8) << (((_chan) - 2) * 2)) + #define MESON_SAR_ADC_AUX_SW_MUX_SEL_CHAN_SHIFT(_chan) \ + (8 + (((_chan) - 2) * 3)) #define MESON_SAR_ADC_AUX_SW_VREF_P_MUX BIT(6) #define MESON_SAR_ADC_AUX_SW_VREF_N_MUX BIT(5) #define MESON_SAR_ADC_AUX_SW_MODE_SEL BIT(4) @@ -221,6 +221,7 @@ enum meson_sar_adc_chan7_mux_sel { struct meson_sar_adc_data { bool has_bl30_integration; + unsigned long clock_rate; u32 bandgap_reg; unsigned int resolution; const char *name; @@ -233,7 +234,6 @@ struct meson_sar_adc_priv { const struct meson_sar_adc_data *data; struct clk *clkin; struct clk *core_clk; - struct clk *sana_clk; struct clk *adc_sel_clk; struct clk *adc_clk; struct clk_gate clk_gate; @@ -622,7 +622,7 @@ static int meson_sar_adc_clk_init(struct iio_dev *indio_dev, static int meson_sar_adc_init(struct iio_dev *indio_dev) { struct meson_sar_adc_priv *priv = iio_priv(indio_dev); - int regval, ret; + int regval, i, ret; /* * make sure we start at CH7 input since the other muxes are only used @@ -677,6 +677,32 @@ static int meson_sar_adc_init(struct iio_dev *indio_dev) FIELD_PREP(MESON_SAR_ADC_DELAY_INPUT_DLY_SEL_MASK, 1)); + /* + * set up the input channel muxes in MESON_SAR_ADC_CHAN_10_SW + * (0 = SAR_ADC_CH0, 1 = SAR_ADC_CH1) + */ + regval = FIELD_PREP(MESON_SAR_ADC_CHAN_10_SW_CHAN0_MUX_SEL_MASK, 0); + regmap_update_bits(priv->regmap, MESON_SAR_ADC_CHAN_10_SW, + MESON_SAR_ADC_CHAN_10_SW_CHAN0_MUX_SEL_MASK, + regval); + regval = FIELD_PREP(MESON_SAR_ADC_CHAN_10_SW_CHAN1_MUX_SEL_MASK, 1); + regmap_update_bits(priv->regmap, MESON_SAR_ADC_CHAN_10_SW, + MESON_SAR_ADC_CHAN_10_SW_CHAN1_MUX_SEL_MASK, + regval); + + /* + * set up the input channel muxes in MESON_SAR_ADC_AUX_SW + * (2 = SAR_ADC_CH2, 3 = SAR_ADC_CH3, ...) and enable + * MESON_SAR_ADC_AUX_SW_YP_DRIVE_SW and + * MESON_SAR_ADC_AUX_SW_XP_DRIVE_SW like the vendor driver. + */ + regval = 0; + for (i = 2; i <= 7; i++) + regval |= i << MESON_SAR_ADC_AUX_SW_MUX_SEL_CHAN_SHIFT(i); + regval |= MESON_SAR_ADC_AUX_SW_YP_DRIVE_SW; + regval |= MESON_SAR_ADC_AUX_SW_XP_DRIVE_SW; + regmap_write(priv->regmap, MESON_SAR_ADC_AUX_SW, regval); + ret = clk_set_parent(priv->adc_sel_clk, priv->clkin); if (ret) { dev_err(indio_dev->dev.parent, @@ -684,7 +710,7 @@ static int meson_sar_adc_init(struct iio_dev *indio_dev) return ret; } - ret = clk_set_rate(priv->adc_clk, 1200000); + ret = clk_set_rate(priv->adc_clk, priv->data->clock_rate); if (ret) { dev_err(indio_dev->dev.parent, "failed to set adc clock rate\n"); @@ -731,12 +757,6 @@ static int meson_sar_adc_hw_enable(struct iio_dev *indio_dev) goto err_core_clk; } - ret = clk_prepare_enable(priv->sana_clk); - if (ret) { - dev_err(indio_dev->dev.parent, "failed to enable sana clk\n"); - goto err_sana_clk; - } - regval = FIELD_PREP(MESON_SAR_ADC_REG0_FIFO_CNT_IRQ_MASK, 1); regmap_update_bits(priv->regmap, MESON_SAR_ADC_REG0, MESON_SAR_ADC_REG0_FIFO_CNT_IRQ_MASK, regval); @@ -763,8 +783,6 @@ err_adc_clk: regmap_update_bits(priv->regmap, MESON_SAR_ADC_REG3, MESON_SAR_ADC_REG3_ADC_EN, 0); meson_sar_adc_set_bandgap(indio_dev, false); - clk_disable_unprepare(priv->sana_clk); -err_sana_clk: clk_disable_unprepare(priv->core_clk); err_core_clk: regulator_disable(priv->vref); @@ -790,7 +808,6 @@ static int meson_sar_adc_hw_disable(struct iio_dev *indio_dev) meson_sar_adc_set_bandgap(indio_dev, false); - clk_disable_unprepare(priv->sana_clk); clk_disable_unprepare(priv->core_clk); regulator_disable(priv->vref); @@ -866,6 +883,7 @@ static const struct iio_info meson_sar_adc_iio_info = { static const struct meson_sar_adc_data meson_sar_adc_meson8_data = { .has_bl30_integration = false, + .clock_rate = 1150000, .bandgap_reg = MESON_SAR_ADC_DELTA_10, .regmap_config = &meson_sar_adc_regmap_config_meson8, .resolution = 10, @@ -874,6 +892,7 @@ static const struct meson_sar_adc_data meson_sar_adc_meson8_data = { static const struct meson_sar_adc_data meson_sar_adc_meson8b_data = { .has_bl30_integration = false, + .clock_rate = 1150000, .bandgap_reg = MESON_SAR_ADC_DELTA_10, .regmap_config = &meson_sar_adc_regmap_config_meson8, .resolution = 10, @@ -882,6 +901,7 @@ static const struct meson_sar_adc_data meson_sar_adc_meson8b_data = { static const struct meson_sar_adc_data meson_sar_adc_gxbb_data = { .has_bl30_integration = true, + .clock_rate = 1200000, .bandgap_reg = MESON_SAR_ADC_REG11, .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 10, @@ -890,6 +910,7 @@ static const struct meson_sar_adc_data meson_sar_adc_gxbb_data = { static const struct meson_sar_adc_data meson_sar_adc_gxl_data = { .has_bl30_integration = true, + .clock_rate = 1200000, .bandgap_reg = MESON_SAR_ADC_REG11, .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 12, @@ -898,6 +919,7 @@ static const struct meson_sar_adc_data meson_sar_adc_gxl_data = { static const struct meson_sar_adc_data meson_sar_adc_gxm_data = { .has_bl30_integration = true, + .clock_rate = 1200000, .bandgap_reg = MESON_SAR_ADC_REG11, .regmap_config = &meson_sar_adc_regmap_config_gxbb, .resolution = 12, @@ -993,16 +1015,6 @@ static int meson_sar_adc_probe(struct platform_device *pdev) return PTR_ERR(priv->core_clk); } - priv->sana_clk = devm_clk_get(&pdev->dev, "sana"); - if (IS_ERR(priv->sana_clk)) { - if (PTR_ERR(priv->sana_clk) == -ENOENT) { - priv->sana_clk = NULL; - } else { - dev_err(&pdev->dev, "failed to get sana clk\n"); - return PTR_ERR(priv->sana_clk); - } - } - priv->adc_clk = devm_clk_get(&pdev->dev, "adc_clk"); if (IS_ERR(priv->adc_clk)) { if (PTR_ERR(priv->adc_clk) == -ENOENT) { diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c index 47d24ae5462f..fe3d7826783c 100644 --- a/drivers/iio/adc/qcom-vadc-common.c +++ b/drivers/iio/adc/qcom-vadc-common.c @@ -5,6 +5,7 @@ #include <linux/math64.h> #include <linux/log2.h> #include <linux/err.h> +#include <linux/module.h> #include "qcom-vadc-common.h" @@ -229,3 +230,6 @@ int qcom_vadc_decimation_from_dt(u32 value) return __ffs64(value / VADC_DECIMATION_MIN); } EXPORT_SYMBOL(qcom_vadc_decimation_from_dt); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Qualcomm ADC common functionality"); diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c index 6aefef99f935..40be7d9fadbf 100644 --- a/drivers/iio/adc/stm32-adc-core.c +++ b/drivers/iio/adc/stm32-adc-core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is part of STM32 ADC driver * @@ -6,19 +7,6 @@ * * Inspired from: fsl-imx25-tsadc * - * License type: GPLv2 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/clk.h> diff --git a/drivers/iio/adc/stm32-adc-core.h b/drivers/iio/adc/stm32-adc-core.h index 250ee958a669..8af507b3f32d 100644 --- a/drivers/iio/adc/stm32-adc-core.h +++ b/drivers/iio/adc/stm32-adc-core.h @@ -1,22 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is part of STM32 ADC driver * * Copyright (C) 2016, STMicroelectronics - All Rights Reserved * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. * - * License type: GPLv2 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __STM32_ADC_H diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c index c9d96f935dba..7f5def465340 100644 --- a/drivers/iio/adc/stm32-adc.c +++ b/drivers/iio/adc/stm32-adc.c @@ -1,22 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is part of STM32 ADC driver * * Copyright (C) 2016, STMicroelectronics - All Rights Reserved * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. - * - * License type: GPLv2 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/clk.h> @@ -92,6 +79,7 @@ #define STM32H7_ADC_SQR3 0x38 #define STM32H7_ADC_SQR4 0x3C #define STM32H7_ADC_DR 0x40 +#define STM32H7_ADC_DIFSEL 0xC0 #define STM32H7_ADC_CALFACT 0xC4 #define STM32H7_ADC_CALFACT2 0xC8 @@ -153,6 +141,8 @@ enum stm32h7_adc_dmngt { /* BOOST bit must be set on STM32H7 when ADC clock is above 20MHz */ #define STM32H7_BOOST_CLKRATE 20000000UL +#define STM32_ADC_CH_MAX 20 /* max number of channels */ +#define STM32_ADC_CH_SZ 10 /* max channel name size */ #define STM32_ADC_MAX_SQ 16 /* SQ1..SQ16 */ #define STM32_ADC_MAX_SMP 7 /* SMPx range is [0..7] */ #define STM32_ADC_TIMEOUT_US 100000 @@ -297,9 +287,11 @@ struct stm32_adc_cfg { * @rx_buf: dma rx buffer cpu address * @rx_dma_buf: dma rx buffer bus address * @rx_buf_sz: dma rx buffer size + * @difsel bitmask to set single-ended/differential channel * @pcsel bitmask to preselect channels on some devices * @smpr_val: sampling time settings (e.g. smpr1 / smpr2) * @cal: optional calibration data on some devices + * @chan_name: channel name array */ struct stm32_adc { struct stm32_adc_common *common; @@ -318,72 +310,37 @@ struct stm32_adc { u8 *rx_buf; dma_addr_t rx_dma_buf; unsigned int rx_buf_sz; + u32 difsel; u32 pcsel; u32 smpr_val[2]; struct stm32_adc_calib cal; + char chan_name[STM32_ADC_CH_MAX][STM32_ADC_CH_SZ]; }; -/** - * struct stm32_adc_chan_spec - specification of stm32 adc channel - * @type: IIO channel type - * @channel: channel number (single ended) - * @name: channel name (single ended) - */ -struct stm32_adc_chan_spec { - enum iio_chan_type type; - int channel; - const char *name; +struct stm32_adc_diff_channel { + u32 vinp; + u32 vinn; }; /** * struct stm32_adc_info - stm32 ADC, per instance config data - * @channels: Reference to stm32 channels spec * @max_channels: Number of channels * @resolutions: available resolutions * @num_res: number of available resolutions */ struct stm32_adc_info { - const struct stm32_adc_chan_spec *channels; int max_channels; const unsigned int *resolutions; const unsigned int num_res; }; -/* - * Input definitions common for all instances: - * stm32f4 can have up to 16 channels - * stm32h7 can have up to 20 channels - */ -static const struct stm32_adc_chan_spec stm32_adc_channels[] = { - { IIO_VOLTAGE, 0, "in0" }, - { IIO_VOLTAGE, 1, "in1" }, - { IIO_VOLTAGE, 2, "in2" }, - { IIO_VOLTAGE, 3, "in3" }, - { IIO_VOLTAGE, 4, "in4" }, - { IIO_VOLTAGE, 5, "in5" }, - { IIO_VOLTAGE, 6, "in6" }, - { IIO_VOLTAGE, 7, "in7" }, - { IIO_VOLTAGE, 8, "in8" }, - { IIO_VOLTAGE, 9, "in9" }, - { IIO_VOLTAGE, 10, "in10" }, - { IIO_VOLTAGE, 11, "in11" }, - { IIO_VOLTAGE, 12, "in12" }, - { IIO_VOLTAGE, 13, "in13" }, - { IIO_VOLTAGE, 14, "in14" }, - { IIO_VOLTAGE, 15, "in15" }, - { IIO_VOLTAGE, 16, "in16" }, - { IIO_VOLTAGE, 17, "in17" }, - { IIO_VOLTAGE, 18, "in18" }, - { IIO_VOLTAGE, 19, "in19" }, -}; - static const unsigned int stm32f4_adc_resolutions[] = { /* sorted values so the index matches RES[1:0] in STM32F4_ADC_CR1 */ 12, 10, 8, 6, }; +/* stm32f4 can have up to 16 channels */ static const struct stm32_adc_info stm32f4_adc_info = { - .channels = stm32_adc_channels, .max_channels = 16, .resolutions = stm32f4_adc_resolutions, .num_res = ARRAY_SIZE(stm32f4_adc_resolutions), @@ -394,9 +351,9 @@ static const unsigned int stm32h7_adc_resolutions[] = { 16, 14, 12, 10, 8, }; +/* stm32h7 can have up to 20 channels */ static const struct stm32_adc_info stm32h7_adc_info = { - .channels = stm32_adc_channels, - .max_channels = 20, + .max_channels = STM32_ADC_CH_MAX, .resolutions = stm32h7_adc_resolutions, .num_res = ARRAY_SIZE(stm32h7_adc_resolutions), }; @@ -983,15 +940,19 @@ pwr_dwn: * stm32h7_adc_prepare() - Leave power down mode to enable ADC. * @adc: stm32 adc instance * Leave power down mode. + * Configure channels as single ended or differential before enabling ADC. * Enable ADC. * Restore calibration data. - * Pre-select channels that may be used in PCSEL (required by input MUX / IO). + * Pre-select channels that may be used in PCSEL (required by input MUX / IO): + * - Only one input is selected for single ended (e.g. 'vinp') + * - Two inputs are selected for differential channels (e.g. 'vinp' & 'vinn') */ static int stm32h7_adc_prepare(struct stm32_adc *adc) { int ret; stm32h7_adc_exit_pwr_down(adc); + stm32_adc_writel(adc, STM32H7_ADC_DIFSEL, adc->difsel); ret = stm32h7_adc_enable(adc); if (ret) @@ -1263,10 +1224,23 @@ static int stm32_adc_read_raw(struct iio_dev *indio_dev, return ret; case IIO_CHAN_INFO_SCALE: - *val = adc->common->vref_mv; - *val2 = chan->scan_type.realbits; + if (chan->differential) { + *val = adc->common->vref_mv * 2; + *val2 = chan->scan_type.realbits; + } else { + *val = adc->common->vref_mv; + *val2 = chan->scan_type.realbits; + } return IIO_VAL_FRACTIONAL_LOG2; + case IIO_CHAN_INFO_OFFSET: + if (chan->differential) + /* ADC_full_scale / 2 */ + *val = -((1 << chan->scan_type.realbits) / 2); + else + *val = 0; + return IIO_VAL_INT; + default: return -EINVAL; } @@ -1315,6 +1289,7 @@ static int stm32_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val) { struct stm32_adc *adc = iio_priv(indio_dev); unsigned int watermark = STM32_DMA_BUFFER_SIZE / 2; + unsigned int rx_buf_sz = STM32_DMA_BUFFER_SIZE; /* * dma cyclic transfers are used, buffer is split into two periods. @@ -1323,7 +1298,7 @@ static int stm32_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val) * - one buffer (period) driver can push with iio_trigger_poll(). */ watermark = min(watermark, val * (unsigned)(sizeof(u16))); - adc->rx_buf_sz = watermark * 2; + adc->rx_buf_sz = min(rx_buf_sz, watermark * 2 * adc->num_conv); return 0; } @@ -1628,29 +1603,40 @@ static void stm32_adc_smpr_init(struct stm32_adc *adc, int channel, u32 smp_ns) } static void stm32_adc_chan_init_one(struct iio_dev *indio_dev, - struct iio_chan_spec *chan, - const struct stm32_adc_chan_spec *channel, - int scan_index, u32 smp) + struct iio_chan_spec *chan, u32 vinp, + u32 vinn, int scan_index, bool differential) { struct stm32_adc *adc = iio_priv(indio_dev); - - chan->type = channel->type; - chan->channel = channel->channel; - chan->datasheet_name = channel->name; + char *name = adc->chan_name[vinp]; + + chan->type = IIO_VOLTAGE; + chan->channel = vinp; + if (differential) { + chan->differential = 1; + chan->channel2 = vinn; + snprintf(name, STM32_ADC_CH_SZ, "in%d-in%d", vinp, vinn); + } else { + snprintf(name, STM32_ADC_CH_SZ, "in%d", vinp); + } + chan->datasheet_name = name; chan->scan_index = scan_index; chan->indexed = 1; chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW); - chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE); + chan->info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_OFFSET); chan->scan_type.sign = 'u'; chan->scan_type.realbits = adc->cfg->adc_info->resolutions[adc->res]; chan->scan_type.storagebits = 16; chan->ext_info = stm32_adc_ext_info; - /* Prepare sampling time settings */ - stm32_adc_smpr_init(adc, chan->channel, smp); - /* pre-build selected channels mask */ adc->pcsel |= BIT(chan->channel); + if (differential) { + /* pre-build diff channels mask */ + adc->difsel |= BIT(chan->channel); + /* Also add negative input to pre-selected channels */ + adc->pcsel |= BIT(chan->channel2); + } } static int stm32_adc_chan_of_init(struct iio_dev *indio_dev) @@ -1658,17 +1644,40 @@ static int stm32_adc_chan_of_init(struct iio_dev *indio_dev) struct device_node *node = indio_dev->dev.of_node; struct stm32_adc *adc = iio_priv(indio_dev); const struct stm32_adc_info *adc_info = adc->cfg->adc_info; + struct stm32_adc_diff_channel diff[STM32_ADC_CH_MAX]; struct property *prop; const __be32 *cur; struct iio_chan_spec *channels; - int scan_index = 0, num_channels, ret; + int scan_index = 0, num_channels = 0, num_diff = 0, ret, i; u32 val, smp = 0; - num_channels = of_property_count_u32_elems(node, "st,adc-channels"); - if (num_channels < 0 || - num_channels > adc_info->max_channels) { + ret = of_property_count_u32_elems(node, "st,adc-channels"); + if (ret > adc_info->max_channels) { dev_err(&indio_dev->dev, "Bad st,adc-channels?\n"); - return num_channels < 0 ? num_channels : -EINVAL; + return -EINVAL; + } else if (ret > 0) { + num_channels += ret; + } + + ret = of_property_count_elems_of_size(node, "st,adc-diff-channels", + sizeof(*diff)); + if (ret > adc_info->max_channels) { + dev_err(&indio_dev->dev, "Bad st,adc-diff-channels?\n"); + return -EINVAL; + } else if (ret > 0) { + int size = ret * sizeof(*diff) / sizeof(u32); + + num_diff = ret; + num_channels += ret; + ret = of_property_read_u32_array(node, "st,adc-diff-channels", + (u32 *)diff, size); + if (ret) + return ret; + } + + if (!num_channels) { + dev_err(&indio_dev->dev, "No channels configured\n"); + return -ENODATA; } /* Optional sample time is provided either for each, or all channels */ @@ -1689,6 +1698,33 @@ static int stm32_adc_chan_of_init(struct iio_dev *indio_dev) return -EINVAL; } + /* Channel can't be configured both as single-ended & diff */ + for (i = 0; i < num_diff; i++) { + if (val == diff[i].vinp) { + dev_err(&indio_dev->dev, + "channel %d miss-configured\n", val); + return -EINVAL; + } + } + stm32_adc_chan_init_one(indio_dev, &channels[scan_index], val, + 0, scan_index, false); + scan_index++; + } + + for (i = 0; i < num_diff; i++) { + if (diff[i].vinp >= adc_info->max_channels || + diff[i].vinn >= adc_info->max_channels) { + dev_err(&indio_dev->dev, "Invalid channel in%d-in%d\n", + diff[i].vinp, diff[i].vinn); + return -EINVAL; + } + stm32_adc_chan_init_one(indio_dev, &channels[scan_index], + diff[i].vinp, diff[i].vinn, scan_index, + true); + scan_index++; + } + + for (i = 0; i < scan_index; i++) { /* * Using of_property_read_u32_index(), smp value will only be * modified if valid u32 value can be decoded. This allows to @@ -1696,12 +1732,9 @@ static int stm32_adc_chan_of_init(struct iio_dev *indio_dev) * value per channel. */ of_property_read_u32_index(node, "st,min-sample-time-nsecs", - scan_index, &smp); - - stm32_adc_chan_init_one(indio_dev, &channels[scan_index], - &adc_info->channels[val], - scan_index, smp); - scan_index++; + i, &smp); + /* Prepare sampling time settings */ + stm32_adc_smpr_init(adc, channels[i].channel, smp); } indio_dev->num_channels = scan_index; diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c index b3e573cc6f5f..80df5a377d30 100644 --- a/drivers/iio/adc/ti_am335x_adc.c +++ b/drivers/iio/adc/ti_am335x_adc.c @@ -523,7 +523,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev, } am335x_tsc_se_adc_done(adc_dev->mfd_tscadc); - if (found == false) + if (!found) ret = -EBUSY; err_unlock: diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c index 97bce8345c6a..fbe2431f5b81 100644 --- a/drivers/iio/chemical/ccs811.c +++ b/drivers/iio/chemical/ccs811.c @@ -96,7 +96,6 @@ static const struct iio_chan_spec ccs811_channels[] = { .channel2 = IIO_MOD_CO2, .modified = 1, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | - BIT(IIO_CHAN_INFO_OFFSET) | BIT(IIO_CHAN_INFO_SCALE), .scan_index = 0, .scan_type = { @@ -255,24 +254,18 @@ static int ccs811_read_raw(struct iio_dev *indio_dev, switch (chan->channel2) { case IIO_MOD_CO2: *val = 0; - *val2 = 12834; + *val2 = 100; return IIO_VAL_INT_PLUS_MICRO; case IIO_MOD_VOC: *val = 0; - *val2 = 84246; - return IIO_VAL_INT_PLUS_MICRO; + *val2 = 100; + return IIO_VAL_INT_PLUS_NANO; default: return -EINVAL; } default: return -EINVAL; } - case IIO_CHAN_INFO_OFFSET: - if (!(chan->type == IIO_CONCENTRATION && - chan->channel2 == IIO_MOD_CO2)) - return -EINVAL; - *val = -400; - return IIO_VAL_INT; default: return -EINVAL; } diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c index ed8063f2da99..7d30c59da3e2 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c @@ -191,7 +191,6 @@ static int cros_ec_sensors_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent); - struct cros_ec_device *ec_device; struct iio_dev *indio_dev; struct cros_ec_sensors_state *state; struct iio_chan_spec *channel; @@ -201,7 +200,6 @@ static int cros_ec_sensors_probe(struct platform_device *pdev) dev_warn(&pdev->dev, "No CROS EC device found.\n"); return -EINVAL; } - ec_device = ec_dev->ec_dev; indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*state)); if (!indio_dev) diff --git a/drivers/iio/common/ssp_sensors/ssp.h b/drivers/iio/common/ssp_sensors/ssp.h index b910e91d7c0d..82a01addd919 100644 --- a/drivers/iio/common/ssp_sensors/ssp.h +++ b/drivers/iio/common/ssp_sensors/ssp.h @@ -188,7 +188,7 @@ struct ssp_sensorhub_info { */ struct ssp_data { struct spi_device *spi; - struct ssp_sensorhub_info *sensorhub_info; + const struct ssp_sensorhub_info *sensorhub_info; struct timer_list wdt_timer; struct work_struct work_wdt; struct delayed_work work_refresh; diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c index 2ba2ff5e59c4..af3aa38f67cd 100644 --- a/drivers/iio/common/ssp_sensors/ssp_dev.c +++ b/drivers/iio/common/ssp_sensors/ssp_dev.c @@ -486,7 +486,7 @@ static struct ssp_data *ssp_parse_dt(struct device *dev) if (!match) goto err_mcu_reset_gpio; - data->sensorhub_info = (struct ssp_sensorhub_info *)match->data; + data->sensorhub_info = match->data; dev_set_drvdata(dev, data); diff --git a/drivers/iio/common/ssp_sensors/ssp_spi.c b/drivers/iio/common/ssp_sensors/ssp_spi.c index 704284a475ae..2ab106bb3e03 100644 --- a/drivers/iio/common/ssp_sensors/ssp_spi.c +++ b/drivers/iio/common/ssp_sensors/ssp_spi.c @@ -277,12 +277,9 @@ static int ssp_handle_big_data(struct ssp_data *data, char *dataframe, int *idx) static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len) { int idx, sd; - struct timespec ts; struct ssp_sensor_data *spd; struct iio_dev **indio_devs = data->sensor_devs; - getnstimeofday(&ts); - for (idx = 0; idx < len;) { switch (dataframe[idx++]) { case SSP_MSG2AP_INST_BYPASS_DATA: @@ -329,7 +326,7 @@ static int ssp_parse_dataframe(struct ssp_data *data, char *dataframe, int len) } if (data->time_syncing) - data->timestamp = ts.tv_sec * 1000000000ULL + ts.tv_nsec; + data->timestamp = ktime_get_real_ns(); return 0; } diff --git a/drivers/iio/counter/stm32-lptimer-cnt.c b/drivers/iio/counter/stm32-lptimer-cnt.c index 81ae5f74216d..42fb8ba67090 100644 --- a/drivers/iio/counter/stm32-lptimer-cnt.c +++ b/drivers/iio/counter/stm32-lptimer-cnt.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * STM32 Low-Power Timer Encoder and Counter driver * @@ -7,7 +8,6 @@ * * Inspired by 104-quad-8 and stm32-timer-trigger drivers. * - * License terms: GNU General Public License (GPL), version 2 */ #include <linux/bitfield.h> diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index afa856d10c26..8b5aad4c32d9 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -476,7 +476,7 @@ static int mcp4725_probe(struct i2c_client *client, goto err_disable_vref_reg; } pd = (inbuf[0] >> 1) & 0x3; - data->powerdown = pd > 0 ? true : false; + data->powerdown = pd > 0; data->powerdown_mode = pd ? pd - 1 : 2; /* largest resistor to gnd */ data->dac_value = (inbuf[1] << 4) | (inbuf[2] >> 4); if (data->id == MCP4726) diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c index 55026fe1c610..d0fb3124de07 100644 --- a/drivers/iio/dac/stm32-dac-core.c +++ b/drivers/iio/dac/stm32-dac-core.c @@ -1,22 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is part of STM32 DAC driver * * Copyright (C) 2017, STMicroelectronics - All Rights Reserved * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. * - * License type: GPLv2 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/clk.h> diff --git a/drivers/iio/dac/stm32-dac-core.h b/drivers/iio/dac/stm32-dac-core.h index daf09931857c..d3b415fb9575 100644 --- a/drivers/iio/dac/stm32-dac-core.h +++ b/drivers/iio/dac/stm32-dac-core.h @@ -1,22 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is part of STM32 DAC driver * * Copyright (C) 2017, STMicroelectronics - All Rights Reserved * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. - * - * License type: GPLv2 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef __STM32_DAC_CORE_H diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c index 9ffab02bf9f9..cce26a3a6627 100644 --- a/drivers/iio/dac/stm32-dac.c +++ b/drivers/iio/dac/stm32-dac.c @@ -1,23 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is part of STM32 DAC driver * * Copyright (C) 2017, STMicroelectronics - All Rights Reserved * Authors: Amelie Delaunay <amelie.delaunay@st.com> * Fabrice Gasnier <fabrice.gasnier@st.com> - * - * License type: GPLv2 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. - * See the GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/bitfield.h> diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c index fe8884543da0..efd0005f59b4 100644 --- a/drivers/iio/dummy/iio_dummy_evgen.c +++ b/drivers/iio/dummy/iio_dummy_evgen.c @@ -56,7 +56,7 @@ static int iio_dummy_evgen_create(void) return -ENOMEM; ret = irq_sim_init(&iio_evgen->irq_sim, IIO_EVENTGEN_NO); - if (ret) { + if (ret < 0) { kfree(iio_evgen); return ret; } diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c index 90ec4bed62b7..605eee23780c 100644 --- a/drivers/iio/gyro/adis16136.c +++ b/drivers/iio/gyro/adis16136.c @@ -124,7 +124,7 @@ static int adis16136_show_product_id(void *arg, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adis16136_product_id_fops, +DEFINE_DEBUGFS_ATTRIBUTE(adis16136_product_id_fops, adis16136_show_product_id, NULL, "%llu\n"); static int adis16136_show_flash_count(void *arg, u64 *val) @@ -142,18 +142,21 @@ static int adis16136_show_flash_count(void *arg, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adis16136_flash_count_fops, +DEFINE_DEBUGFS_ATTRIBUTE(adis16136_flash_count_fops, adis16136_show_flash_count, NULL, "%lld\n"); static int adis16136_debugfs_init(struct iio_dev *indio_dev) { struct adis16136 *adis16136 = iio_priv(indio_dev); - debugfs_create_file("serial_number", 0400, indio_dev->debugfs_dentry, - adis16136, &adis16136_serial_fops); - debugfs_create_file("product_id", 0400, indio_dev->debugfs_dentry, + debugfs_create_file_unsafe("serial_number", 0400, + indio_dev->debugfs_dentry, adis16136, + &adis16136_serial_fops); + debugfs_create_file_unsafe("product_id", 0400, + indio_dev->debugfs_dentry, adis16136, &adis16136_product_id_fops); - debugfs_create_file("flash_count", 0400, indio_dev->debugfs_dentry, + debugfs_create_file_unsafe("flash_count", 0400, + indio_dev->debugfs_dentry, adis16136, &adis16136_flash_count_fops); return 0; diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c index 15046172e437..63ca31628a93 100644 --- a/drivers/iio/gyro/bmg160_core.c +++ b/drivers/iio/gyro/bmg160_core.c @@ -27,7 +27,6 @@ #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> #include <linux/regmap.h> -#include <linux/delay.h> #include "bmg160.h" #define BMG160_IRQ_NAME "bmg160_event" diff --git a/drivers/iio/health/max30102.c b/drivers/iio/health/max30102.c index 147a8c14235f..15ccadc74891 100644 --- a/drivers/iio/health/max30102.c +++ b/drivers/iio/health/max30102.c @@ -3,6 +3,9 @@ * * Copyright (C) 2017 Matt Ranostay <matt@ranostay.consulting> * + * Support for MAX30105 optical particle sensor + * Copyright (C) 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -13,6 +16,7 @@ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * + * 7-bit I2C chip address: 0x57 * TODO: proximity power saving feature */ @@ -32,6 +36,18 @@ #define MAX30102_REGMAP_NAME "max30102_regmap" #define MAX30102_DRV_NAME "max30102" +#define MAX30102_PART_NUMBER 0x15 + +enum max30102_chip_id { + max30102, + max30105, +}; + +enum max3012_led_idx { + MAX30102_LED_RED, + MAX30102_LED_IR, + MAX30105_LED_GREEN, +}; #define MAX30102_REG_INT_STATUS 0x00 #define MAX30102_REG_INT_STATUS_PWR_RDY BIT(0) @@ -52,7 +68,7 @@ #define MAX30102_REG_FIFO_OVR_CTR 0x05 #define MAX30102_REG_FIFO_RD_PTR 0x06 #define MAX30102_REG_FIFO_DATA 0x07 -#define MAX30102_REG_FIFO_DATA_ENTRY_LEN 6 +#define MAX30102_REG_FIFO_DATA_BYTES 3 #define MAX30102_REG_FIFO_CONFIG 0x08 #define MAX30102_REG_FIFO_CONFIG_AVG_4SAMPLES BIT(1) @@ -60,11 +76,18 @@ #define MAX30102_REG_FIFO_CONFIG_AFULL BIT(0) #define MAX30102_REG_MODE_CONFIG 0x09 -#define MAX30102_REG_MODE_CONFIG_MODE_SPO2_EN BIT(0) -#define MAX30102_REG_MODE_CONFIG_MODE_HR_EN BIT(1) -#define MAX30102_REG_MODE_CONFIG_MODE_MASK 0x03 +#define MAX30102_REG_MODE_CONFIG_MODE_NONE 0x00 +#define MAX30102_REG_MODE_CONFIG_MODE_HR 0x02 /* red LED */ +#define MAX30102_REG_MODE_CONFIG_MODE_HR_SPO2 0x03 /* red + IR LED */ +#define MAX30102_REG_MODE_CONFIG_MODE_MULTI 0x07 /* multi-LED mode */ +#define MAX30102_REG_MODE_CONFIG_MODE_MASK GENMASK(2, 0) #define MAX30102_REG_MODE_CONFIG_PWR BIT(7) +#define MAX30102_REG_MODE_CONTROL_SLOT21 0x11 /* multi-LED control */ +#define MAX30102_REG_MODE_CONTROL_SLOT43 0x12 +#define MAX30102_REG_MODE_CONTROL_SLOT_MASK (GENMASK(6, 4) | GENMASK(2, 0)) +#define MAX30102_REG_MODE_CONTROL_SLOT_SHIFT 4 + #define MAX30102_REG_SPO2_CONFIG 0x0a #define MAX30102_REG_SPO2_CONFIG_PULSE_411_US 0x03 #define MAX30102_REG_SPO2_CONFIG_SR_400HZ 0x03 @@ -75,6 +98,7 @@ #define MAX30102_REG_RED_LED_CONFIG 0x0c #define MAX30102_REG_IR_LED_CONFIG 0x0d +#define MAX30105_REG_GREEN_LED_CONFIG 0x0e #define MAX30102_REG_TEMP_CONFIG 0x21 #define MAX30102_REG_TEMP_CONFIG_TEMP_EN BIT(0) @@ -82,14 +106,18 @@ #define MAX30102_REG_TEMP_INTEGER 0x1f #define MAX30102_REG_TEMP_FRACTION 0x20 +#define MAX30102_REG_REV_ID 0xfe +#define MAX30102_REG_PART_ID 0xff + struct max30102_data { struct i2c_client *client; struct iio_dev *indio_dev; struct mutex lock; struct regmap *regmap; + enum max30102_chip_id chip_id; - u8 buffer[8]; - __be32 processed_buffer[2]; /* 2 x 18-bit (padded to 32-bits) */ + u8 buffer[12]; + __be32 processed_buffer[3]; /* 3 x 18-bit (padded to 32-bits) */ }; static const struct regmap_config max30102_regmap_config = { @@ -99,37 +127,47 @@ static const struct regmap_config max30102_regmap_config = { .val_bits = 8, }; -static const unsigned long max30102_scan_masks[] = {0x3, 0}; +static const unsigned long max30102_scan_masks[] = { + BIT(MAX30102_LED_RED) | BIT(MAX30102_LED_IR), + 0 +}; + +static const unsigned long max30105_scan_masks[] = { + BIT(MAX30102_LED_RED) | BIT(MAX30102_LED_IR), + BIT(MAX30102_LED_RED) | BIT(MAX30102_LED_IR) | + BIT(MAX30105_LED_GREEN), + 0 +}; + +#define MAX30102_INTENSITY_CHANNEL(_si, _mod) { \ + .type = IIO_INTENSITY, \ + .channel2 = _mod, \ + .modified = 1, \ + .scan_index = _si, \ + .scan_type = { \ + .sign = 'u', \ + .shift = 8, \ + .realbits = 18, \ + .storagebits = 32, \ + .endianness = IIO_BE, \ + }, \ + } static const struct iio_chan_spec max30102_channels[] = { + MAX30102_INTENSITY_CHANNEL(MAX30102_LED_RED, IIO_MOD_LIGHT_RED), + MAX30102_INTENSITY_CHANNEL(MAX30102_LED_IR, IIO_MOD_LIGHT_IR), { - .type = IIO_INTENSITY, - .channel2 = IIO_MOD_LIGHT_RED, - .modified = 1, - - .scan_index = 0, - .scan_type = { - .sign = 'u', - .shift = 8, - .realbits = 18, - .storagebits = 32, - .endianness = IIO_BE, - }, - }, - { - .type = IIO_INTENSITY, - .channel2 = IIO_MOD_LIGHT_IR, - .modified = 1, - - .scan_index = 1, - .scan_type = { - .sign = 'u', - .shift = 8, - .realbits = 18, - .storagebits = 32, - .endianness = IIO_BE, - }, + .type = IIO_TEMP, + .info_mask_separate = + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + .scan_index = -1, }, +}; + +static const struct iio_chan_spec max30105_channels[] = { + MAX30102_INTENSITY_CHANNEL(MAX30102_LED_RED, IIO_MOD_LIGHT_RED), + MAX30102_INTENSITY_CHANNEL(MAX30102_LED_IR, IIO_MOD_LIGHT_IR), + MAX30102_INTENSITY_CHANNEL(MAX30105_LED_GREEN, IIO_MOD_LIGHT_GREEN), { .type = IIO_TEMP, .info_mask_separate = @@ -138,25 +176,69 @@ static const struct iio_chan_spec max30102_channels[] = { }, }; -static int max30102_set_powermode(struct max30102_data *data, bool state) +static int max30102_set_power(struct max30102_data *data, bool en) { return regmap_update_bits(data->regmap, MAX30102_REG_MODE_CONFIG, MAX30102_REG_MODE_CONFIG_PWR, - state ? 0 : MAX30102_REG_MODE_CONFIG_PWR); + en ? 0 : MAX30102_REG_MODE_CONFIG_PWR); } +static int max30102_set_powermode(struct max30102_data *data, u8 mode, bool en) +{ + u8 reg = mode; + + if (!en) + reg |= MAX30102_REG_MODE_CONFIG_PWR; + + return regmap_update_bits(data->regmap, MAX30102_REG_MODE_CONFIG, + MAX30102_REG_MODE_CONFIG_PWR | + MAX30102_REG_MODE_CONFIG_MODE_MASK, reg); +} + +#define MAX30102_MODE_CONTROL_LED_SLOTS(slot2, slot1) \ + ((slot2 << MAX30102_REG_MODE_CONTROL_SLOT_SHIFT) | slot1) + static int max30102_buffer_postenable(struct iio_dev *indio_dev) { struct max30102_data *data = iio_priv(indio_dev); + int ret; + u8 reg; - return max30102_set_powermode(data, true); + switch (*indio_dev->active_scan_mask) { + case BIT(MAX30102_LED_RED) | BIT(MAX30102_LED_IR): + reg = MAX30102_REG_MODE_CONFIG_MODE_HR_SPO2; + break; + case BIT(MAX30102_LED_RED) | BIT(MAX30102_LED_IR) | + BIT(MAX30105_LED_GREEN): + ret = regmap_update_bits(data->regmap, + MAX30102_REG_MODE_CONTROL_SLOT21, + MAX30102_REG_MODE_CONTROL_SLOT_MASK, + MAX30102_MODE_CONTROL_LED_SLOTS(2, 1)); + if (ret) + return ret; + + ret = regmap_update_bits(data->regmap, + MAX30102_REG_MODE_CONTROL_SLOT43, + MAX30102_REG_MODE_CONTROL_SLOT_MASK, + MAX30102_MODE_CONTROL_LED_SLOTS(0, 3)); + if (ret) + return ret; + + reg = MAX30102_REG_MODE_CONFIG_MODE_MULTI; + break; + default: + return -EINVAL; + } + + return max30102_set_powermode(data, reg, true); } static int max30102_buffer_predisable(struct iio_dev *indio_dev) { struct max30102_data *data = iio_priv(indio_dev); - return max30102_set_powermode(data, false); + return max30102_set_powermode(data, MAX30102_REG_MODE_CONFIG_MODE_NONE, + false); } static const struct iio_buffer_setup_ops max30102_buffer_setup_ops = { @@ -180,32 +262,51 @@ static inline int max30102_fifo_count(struct max30102_data *data) return 0; } -static int max30102_read_measurement(struct max30102_data *data) +#define MAX30102_COPY_DATA(i) \ + memcpy(&data->processed_buffer[(i)], \ + &buffer[(i) * MAX30102_REG_FIFO_DATA_BYTES], \ + MAX30102_REG_FIFO_DATA_BYTES) + +static int max30102_read_measurement(struct max30102_data *data, + unsigned int measurements) { int ret; u8 *buffer = (u8 *) &data->buffer; ret = i2c_smbus_read_i2c_block_data(data->client, MAX30102_REG_FIFO_DATA, - MAX30102_REG_FIFO_DATA_ENTRY_LEN, + measurements * + MAX30102_REG_FIFO_DATA_BYTES, buffer); - memcpy(&data->processed_buffer[0], &buffer[0], 3); - memcpy(&data->processed_buffer[1], &buffer[3], 3); + switch (measurements) { + case 3: + MAX30102_COPY_DATA(2); + case 2: /* fall-through */ + MAX30102_COPY_DATA(1); + case 1: /* fall-through */ + MAX30102_COPY_DATA(0); + break; + default: + return -EINVAL; + } - return (ret == MAX30102_REG_FIFO_DATA_ENTRY_LEN) ? 0 : -EINVAL; + return (ret == measurements * MAX30102_REG_FIFO_DATA_BYTES) ? + 0 : -EINVAL; } static irqreturn_t max30102_interrupt_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct max30102_data *data = iio_priv(indio_dev); + unsigned int measurements = bitmap_weight(indio_dev->active_scan_mask, + indio_dev->masklength); int ret, cnt = 0; mutex_lock(&data->lock); while (cnt || (cnt = max30102_fifo_count(data)) > 0) { - ret = max30102_read_measurement(data); + ret = max30102_read_measurement(data, measurements); if (ret) break; @@ -251,6 +352,29 @@ static int max30102_led_init(struct max30102_data *data) if (ret) return ret; + if (data->chip_id == max30105) { + ret = of_property_read_u32(np, + "maxim,green-led-current-microamp", &val); + if (ret) { + dev_info(dev, "no green-led-current-microamp set\n"); + + /* Default to 7 mA green LED */ + val = 7000; + } + + ret = max30102_get_current_idx(val, ®); + if (ret) { + dev_err(dev, "invalid green LED current setting %d\n", + val); + return ret; + } + + ret = regmap_write(data->regmap, MAX30105_REG_GREEN_LED_CONFIG, + reg); + if (ret) + return ret; + } + ret = of_property_read_u32(np, "maxim,ir-led-current-microamp", &val); if (ret) { dev_info(dev, "no ir-led-current-microamp set\n"); @@ -261,7 +385,7 @@ static int max30102_led_init(struct max30102_data *data) ret = max30102_get_current_idx(val, ®); if (ret) { - dev_err(dev, "invalid IR LED current setting %d", val); + dev_err(dev, "invalid IR LED current setting %d\n", val); return ret; } @@ -277,7 +401,7 @@ static int max30102_chip_init(struct max30102_data *data) if (ret) return ret; - /* enable 18-bit HR + SPO2 readings at 400Hz */ + /* configure 18-bit HR + SpO2 readings at 400Hz */ ret = regmap_write(data->regmap, MAX30102_REG_SPO2_CONFIG, (MAX30102_REG_SPO2_CONFIG_ADC_4096_STEPS << MAX30102_REG_SPO2_CONFIG_ADC_MASK_SHIFT) | @@ -287,14 +411,6 @@ static int max30102_chip_init(struct max30102_data *data) if (ret) return ret; - /* enable SPO2 mode */ - ret = regmap_update_bits(data->regmap, MAX30102_REG_MODE_CONFIG, - MAX30102_REG_MODE_CONFIG_MODE_MASK, - MAX30102_REG_MODE_CONFIG_MODE_HR_EN | - MAX30102_REG_MODE_CONFIG_MODE_SPO2_EN); - if (ret) - return ret; - /* average 4 samples + generate FIFO interrupt */ ret = regmap_write(data->regmap, MAX30102_REG_FIFO_CONFIG, (MAX30102_REG_FIFO_CONFIG_AVG_4SAMPLES @@ -329,20 +445,31 @@ static int max30102_read_temp(struct max30102_data *data, int *val) return 0; } -static int max30102_get_temp(struct max30102_data *data, int *val) +static int max30102_get_temp(struct max30102_data *data, int *val, bool en) { int ret; + if (en) { + ret = max30102_set_power(data, true); + if (ret) + return ret; + } + /* start acquisition */ ret = regmap_update_bits(data->regmap, MAX30102_REG_TEMP_CONFIG, MAX30102_REG_TEMP_CONFIG_TEMP_EN, MAX30102_REG_TEMP_CONFIG_TEMP_EN); if (ret) - return ret; + goto out; msleep(35); + ret = max30102_read_temp(data, val); - return max30102_read_temp(data, val); +out: + if (en) + max30102_set_power(data, false); + + return ret; } static int max30102_read_raw(struct iio_dev *indio_dev, @@ -355,20 +482,19 @@ static int max30102_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: /* - * Temperature reading can only be acquired while engine - * is running + * Temperature reading can only be acquired when not in + * shutdown; leave shutdown briefly when buffer not running */ mutex_lock(&indio_dev->mlock); - if (!iio_buffer_enabled(indio_dev)) - ret = -EBUSY; - else { - ret = max30102_get_temp(data, val); - if (!ret) - ret = IIO_VAL_INT; - } - + ret = max30102_get_temp(data, val, true); + else + ret = max30102_get_temp(data, val, false); mutex_unlock(&indio_dev->mlock); + if (ret) + return ret; + + ret = IIO_VAL_INT; break; case IIO_CHAN_INFO_SCALE: *val = 1000; /* 62.5 */ @@ -391,6 +517,7 @@ static int max30102_probe(struct i2c_client *client, struct iio_buffer *buffer; struct iio_dev *indio_dev; int ret; + unsigned int reg; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); if (!indio_dev) @@ -403,10 +530,7 @@ static int max30102_probe(struct i2c_client *client, iio_device_attach_buffer(indio_dev, buffer); indio_dev->name = MAX30102_DRV_NAME; - indio_dev->channels = max30102_channels; indio_dev->info = &max30102_info; - indio_dev->num_channels = ARRAY_SIZE(max30102_channels); - indio_dev->available_scan_masks = max30102_scan_masks; indio_dev->modes = (INDIO_BUFFER_SOFTWARE | INDIO_DIRECT_MODE); indio_dev->setup_ops = &max30102_buffer_setup_ops; indio_dev->dev.parent = &client->dev; @@ -414,16 +538,50 @@ static int max30102_probe(struct i2c_client *client, data = iio_priv(indio_dev); data->indio_dev = indio_dev; data->client = client; + data->chip_id = id->driver_data; mutex_init(&data->lock); i2c_set_clientdata(client, indio_dev); + switch (data->chip_id) { + case max30105: + indio_dev->channels = max30105_channels; + indio_dev->num_channels = ARRAY_SIZE(max30105_channels); + indio_dev->available_scan_masks = max30105_scan_masks; + break; + case max30102: + indio_dev->channels = max30102_channels; + indio_dev->num_channels = ARRAY_SIZE(max30102_channels); + indio_dev->available_scan_masks = max30102_scan_masks; + break; + default: + return -ENODEV; + } + data->regmap = devm_regmap_init_i2c(client, &max30102_regmap_config); if (IS_ERR(data->regmap)) { - dev_err(&client->dev, "regmap initialization failed.\n"); + dev_err(&client->dev, "regmap initialization failed\n"); return PTR_ERR(data->regmap); } - max30102_set_powermode(data, false); + + /* check part ID */ + ret = regmap_read(data->regmap, MAX30102_REG_PART_ID, ®); + if (ret) + return ret; + if (reg != MAX30102_PART_NUMBER) + return -ENODEV; + + /* show revision ID */ + ret = regmap_read(data->regmap, MAX30102_REG_REV_ID, ®); + if (ret) + return ret; + dev_dbg(&client->dev, "max3010x revision %02x\n", reg); + + /* clear mode setting, chip shutdown */ + ret = max30102_set_powermode(data, MAX30102_REG_MODE_CONFIG_MODE_NONE, + false); + if (ret) + return ret; ret = max30102_chip_init(data); if (ret) @@ -452,19 +610,21 @@ static int max30102_remove(struct i2c_client *client) struct max30102_data *data = iio_priv(indio_dev); iio_device_unregister(indio_dev); - max30102_set_powermode(data, false); + max30102_set_power(data, false); return 0; } static const struct i2c_device_id max30102_id[] = { - { "max30102", 0 }, + { "max30102", max30102 }, + { "max30105", max30105 }, {} }; MODULE_DEVICE_TABLE(i2c, max30102_id); static const struct of_device_id max30102_dt_ids[] = { { .compatible = "maxim,max30102" }, + { .compatible = "maxim,max30105" }, { } }; MODULE_DEVICE_TABLE(of, max30102_dt_ids); @@ -481,5 +641,5 @@ static struct i2c_driver max30102_driver = { module_i2c_driver(max30102_driver); MODULE_AUTHOR("Matt Ranostay <matt@ranostay.consulting>"); -MODULE_DESCRIPTION("MAX30102 heart rate and pulse oximeter sensor"); +MODULE_DESCRIPTION("MAX30102 heart rate/pulse oximeter and MAX30105 particle sensor driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/iio/humidity/hts221.h b/drivers/iio/humidity/hts221.h index 51d021966222..c581af8c0f5d 100644 --- a/drivers/iio/humidity/hts221.h +++ b/drivers/iio/humidity/hts221.h @@ -61,7 +61,8 @@ struct hts221_hw { extern const struct dev_pm_ops hts221_pm_ops; int hts221_write_with_mask(struct hts221_hw *hw, u8 addr, u8 mask, u8 val); -int hts221_probe(struct iio_dev *iio_dev); +int hts221_probe(struct device *dev, int irq, const char *name, + const struct hts221_transfer_function *tf_ops); int hts221_set_enable(struct hts221_hw *hw, bool enable); int hts221_allocate_buffers(struct hts221_hw *hw); int hts221_allocate_trigger(struct hts221_hw *hw); diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c index daef177219b6..d3f7904766bd 100644 --- a/drivers/iio/humidity/hts221_core.c +++ b/drivers/iio/humidity/hts221_core.c @@ -581,12 +581,26 @@ static const struct iio_info hts221_info = { static const unsigned long hts221_scan_masks[] = {0x3, 0x0}; -int hts221_probe(struct iio_dev *iio_dev) +int hts221_probe(struct device *dev, int irq, const char *name, + const struct hts221_transfer_function *tf_ops) { - struct hts221_hw *hw = iio_priv(iio_dev); + struct iio_dev *iio_dev; + struct hts221_hw *hw; int err; u8 data; + iio_dev = devm_iio_device_alloc(dev, sizeof(*hw)); + if (!iio_dev) + return -ENOMEM; + + dev_set_drvdata(dev, (void *)iio_dev); + + hw = iio_priv(iio_dev); + hw->name = name; + hw->dev = dev; + hw->irq = irq; + hw->tf = tf_ops; + mutex_init(&hw->lock); err = hts221_check_whoami(hw); diff --git a/drivers/iio/humidity/hts221_i2c.c b/drivers/iio/humidity/hts221_i2c.c index f38e4b7e0160..2c97350a0f76 100644 --- a/drivers/iio/humidity/hts221_i2c.c +++ b/drivers/iio/humidity/hts221_i2c.c @@ -66,22 +66,8 @@ static const struct hts221_transfer_function hts221_transfer_fn = { static int hts221_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct hts221_hw *hw; - struct iio_dev *iio_dev; - - iio_dev = devm_iio_device_alloc(&client->dev, sizeof(*hw)); - if (!iio_dev) - return -ENOMEM; - - i2c_set_clientdata(client, iio_dev); - - hw = iio_priv(iio_dev); - hw->name = client->name; - hw->dev = &client->dev; - hw->irq = client->irq; - hw->tf = &hts221_transfer_fn; - - return hts221_probe(iio_dev); + return hts221_probe(&client->dev, client->irq, + client->name, &hts221_transfer_fn); } static const struct acpi_device_id hts221_acpi_match[] = { diff --git a/drivers/iio/humidity/hts221_spi.c b/drivers/iio/humidity/hts221_spi.c index 57cbc256771b..55b29b53b9d1 100644 --- a/drivers/iio/humidity/hts221_spi.c +++ b/drivers/iio/humidity/hts221_spi.c @@ -80,22 +80,8 @@ static const struct hts221_transfer_function hts221_transfer_fn = { static int hts221_spi_probe(struct spi_device *spi) { - struct hts221_hw *hw; - struct iio_dev *iio_dev; - - iio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*hw)); - if (!iio_dev) - return -ENOMEM; - - spi_set_drvdata(spi, iio_dev); - - hw = iio_priv(iio_dev); - hw->name = spi->modalias; - hw->dev = &spi->dev; - hw->irq = spi->irq; - hw->tf = &hts221_transfer_fn; - - return hts221_probe(iio_dev); + return hts221_probe(&spi->dev, spi->irq, + spi->modalias, &hts221_transfer_fn); } static const struct of_device_id hts221_spi_of_match[] = { diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c index 7a33d6bd60e0..a27fe208f3ae 100644 --- a/drivers/iio/imu/adis16480.c +++ b/drivers/iio/imu/adis16480.c @@ -194,7 +194,7 @@ static int adis16480_show_serial_number(void *arg, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adis16480_serial_number_fops, +DEFINE_DEBUGFS_ATTRIBUTE(adis16480_serial_number_fops, adis16480_show_serial_number, NULL, "0x%.4llx\n"); static int adis16480_show_product_id(void *arg, u64 *val) @@ -212,7 +212,7 @@ static int adis16480_show_product_id(void *arg, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adis16480_product_id_fops, +DEFINE_DEBUGFS_ATTRIBUTE(adis16480_product_id_fops, adis16480_show_product_id, NULL, "%llu\n"); static int adis16480_show_flash_count(void *arg, u64 *val) @@ -230,24 +230,28 @@ static int adis16480_show_flash_count(void *arg, u64 *val) return 0; } -DEFINE_SIMPLE_ATTRIBUTE(adis16480_flash_count_fops, +DEFINE_DEBUGFS_ATTRIBUTE(adis16480_flash_count_fops, adis16480_show_flash_count, NULL, "%lld\n"); static int adis16480_debugfs_init(struct iio_dev *indio_dev) { struct adis16480 *adis16480 = iio_priv(indio_dev); - debugfs_create_file("firmware_revision", 0400, + debugfs_create_file_unsafe("firmware_revision", 0400, indio_dev->debugfs_dentry, adis16480, &adis16480_firmware_revision_fops); - debugfs_create_file("firmware_date", 0400, indio_dev->debugfs_dentry, - adis16480, &adis16480_firmware_date_fops); - debugfs_create_file("serial_number", 0400, indio_dev->debugfs_dentry, - adis16480, &adis16480_serial_number_fops); - debugfs_create_file("product_id", 0400, indio_dev->debugfs_dentry, - adis16480, &adis16480_product_id_fops); - debugfs_create_file("flash_count", 0400, indio_dev->debugfs_dentry, - adis16480, &adis16480_flash_count_fops); + debugfs_create_file_unsafe("firmware_date", 0400, + indio_dev->debugfs_dentry, adis16480, + &adis16480_firmware_date_fops); + debugfs_create_file_unsafe("serial_number", 0400, + indio_dev->debugfs_dentry, adis16480, + &adis16480_serial_number_fops); + debugfs_create_file_unsafe("product_id", 0400, + indio_dev->debugfs_dentry, adis16480, + &adis16480_product_id_fops); + debugfs_create_file_unsafe("flash_count", 0400, + indio_dev->debugfs_dentry, adis16480, + &adis16480_flash_count_fops); return 0; } diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c index dd6fc6d21f9d..d78a10403bac 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_acpi.c @@ -196,8 +196,7 @@ void inv_mpu_acpi_delete_mux_client(struct i2c_client *client) { struct inv_mpu6050_state *st = iio_priv(dev_get_drvdata(&client->dev)); - if (st->mux_client) - i2c_unregister_device(st->mux_client); + i2c_unregister_device(st->mux_client); } #else diff --git a/drivers/iio/imu/st_lsm6dsx/Kconfig b/drivers/iio/imu/st_lsm6dsx/Kconfig index e57337159b57..14f2eb6e9fb7 100644 --- a/drivers/iio/imu/st_lsm6dsx/Kconfig +++ b/drivers/iio/imu/st_lsm6dsx/Kconfig @@ -16,7 +16,9 @@ config IIO_ST_LSM6DSX config IIO_ST_LSM6DSX_I2C tristate depends on IIO_ST_LSM6DSX + select REGMAP_I2C config IIO_ST_LSM6DSX_SPI tristate depends on IIO_ST_LSM6DSX + select REGMAP_SPI diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index 4fdb7fcc3ea8..8fdd723afa05 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -27,23 +27,12 @@ enum st_lsm6dsx_hw_id { ST_LSM6DSX_MAX_ID, }; +#define ST_LSM6DSX_BUFF_SIZE 256 #define ST_LSM6DSX_CHAN_SIZE 2 #define ST_LSM6DSX_SAMPLE_SIZE 6 - -#if defined(CONFIG_SPI_MASTER) -#define ST_LSM6DSX_RX_MAX_LENGTH 256 -#define ST_LSM6DSX_TX_MAX_LENGTH 8 - -struct st_lsm6dsx_transfer_buffer { - u8 rx_buf[ST_LSM6DSX_RX_MAX_LENGTH]; - u8 tx_buf[ST_LSM6DSX_TX_MAX_LENGTH] ____cacheline_aligned; -}; -#endif /* CONFIG_SPI_MASTER */ - -struct st_lsm6dsx_transfer_function { - int (*read)(struct device *dev, u8 addr, int len, u8 *data); - int (*write)(struct device *dev, u8 addr, int len, u8 *data); -}; +#define ST_LSM6DSX_MAX_WORD_LEN ((32 / ST_LSM6DSX_SAMPLE_SIZE) * \ + ST_LSM6DSX_SAMPLE_SIZE) +#define ST_LSM6DSX_SHIFT_VAL(val, mask) (((val) << __ffs(mask)) & (mask)) struct st_lsm6dsx_reg { u8 addr; @@ -127,47 +116,43 @@ struct st_lsm6dsx_sensor { /** * struct st_lsm6dsx_hw - ST IMU MEMS hw instance * @dev: Pointer to instance of struct device (I2C or SPI). + * @regmap: Register map of the device. * @irq: Device interrupt line (I2C or SPI). - * @lock: Mutex to protect read and write operations. * @fifo_lock: Mutex to prevent concurrent access to the hw FIFO. + * @conf_lock: Mutex to prevent concurrent FIFO configuration update. * @fifo_mode: FIFO operating mode supported by the device. * @enable_mask: Enabled sensor bitmask. * @sip: Total number of samples (acc/gyro) in a given pattern. + * @buff: Device read buffer. * @iio_devs: Pointers to acc/gyro iio_dev instances. * @settings: Pointer to the specific sensor settings in use. - * @tf: Transfer function structure used by I/O operations. - * @tb: Transfer buffers used by SPI I/O operations. */ struct st_lsm6dsx_hw { struct device *dev; + struct regmap *regmap; int irq; - struct mutex lock; struct mutex fifo_lock; + struct mutex conf_lock; enum st_lsm6dsx_fifo_mode fifo_mode; u8 enable_mask; u8 sip; + u8 *buff; + struct iio_dev *iio_devs[ST_LSM6DSX_ID_MAX]; const struct st_lsm6dsx_settings *settings; - - const struct st_lsm6dsx_transfer_function *tf; -#if defined(CONFIG_SPI_MASTER) - struct st_lsm6dsx_transfer_buffer tb; -#endif /* CONFIG_SPI_MASTER */ }; extern const struct dev_pm_ops st_lsm6dsx_pm_ops; int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name, - const struct st_lsm6dsx_transfer_function *tf_ops); + struct regmap *regmap); int st_lsm6dsx_sensor_enable(struct st_lsm6dsx_sensor *sensor); int st_lsm6dsx_sensor_disable(struct st_lsm6dsx_sensor *sensor); int st_lsm6dsx_fifo_setup(struct st_lsm6dsx_hw *hw); -int st_lsm6dsx_write_with_mask(struct st_lsm6dsx_hw *hw, u8 addr, u8 mask, - u8 val); int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark); int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw); diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index 755c472e8a05..1d6aa9b1a4cf 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -30,6 +30,8 @@ #include <linux/iio/kfifo_buf.h> #include <linux/iio/iio.h> #include <linux/iio/buffer.h> +#include <linux/regmap.h> +#include <linux/bitfield.h> #include <linux/platform_data/st_sensors_pdata.h> @@ -120,8 +122,10 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw) dec_reg = &hw->settings->decimator[sensor->id]; if (dec_reg->addr) { - err = st_lsm6dsx_write_with_mask(hw, dec_reg->addr, - dec_reg->mask, data); + int val = ST_LSM6DSX_SHIFT_VAL(data, dec_reg->mask); + + err = regmap_update_bits(hw->regmap, dec_reg->addr, + dec_reg->mask, val); if (err < 0) return err; } @@ -137,8 +141,10 @@ int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw, { int err; - err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR, - ST_LSM6DSX_FIFO_MODE_MASK, fifo_mode); + err = regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_FIFO_MODE_ADDR, + ST_LSM6DSX_FIFO_MODE_MASK, + FIELD_PREP(ST_LSM6DSX_FIFO_MODE_MASK, + fifo_mode)); if (err < 0) return err; @@ -154,8 +160,9 @@ static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor, u8 data; data = hw->enable_mask ? ST_LSM6DSX_MAX_FIFO_ODR_VAL : 0; - return st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR, - ST_LSM6DSX_FIFO_ODR_MASK, data); + return regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_FIFO_MODE_ADDR, + ST_LSM6DSX_FIFO_ODR_MASK, + FIELD_PREP(ST_LSM6DSX_FIFO_ODR_MASK, data)); } int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) @@ -163,9 +170,8 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) u16 fifo_watermark = ~0, cur_watermark, sip = 0, fifo_th_mask; struct st_lsm6dsx_hw *hw = sensor->hw; struct st_lsm6dsx_sensor *cur_sensor; + int i, err, data; __le16 wdata; - int i, err; - u8 data; for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) { cur_sensor = iio_priv(hw->iio_devs[i]); @@ -187,24 +193,42 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) fifo_watermark = (fifo_watermark / sip) * sip; fifo_watermark = fifo_watermark * hw->settings->fifo_ops.th_wl; - mutex_lock(&hw->lock); - - err = hw->tf->read(hw->dev, hw->settings->fifo_ops.fifo_th.addr + 1, - sizeof(data), &data); + err = regmap_read(hw->regmap, hw->settings->fifo_ops.fifo_th.addr + 1, + &data); if (err < 0) - goto out; + return err; fifo_th_mask = hw->settings->fifo_ops.fifo_th.mask; fifo_watermark = ((data << 8) & ~fifo_th_mask) | (fifo_watermark & fifo_th_mask); wdata = cpu_to_le16(fifo_watermark); - err = hw->tf->write(hw->dev, hw->settings->fifo_ops.fifo_th.addr, - sizeof(wdata), (u8 *)&wdata); -out: - mutex_unlock(&hw->lock); + return regmap_bulk_write(hw->regmap, + hw->settings->fifo_ops.fifo_th.addr, + &wdata, sizeof(wdata)); +} - return err < 0 ? err : 0; +/* + * Set max bulk read to ST_LSM6DSX_MAX_WORD_LEN in order to avoid + * a kmalloc for each bus access + */ +static inline int st_lsm6dsx_read_block(struct st_lsm6dsx_hw *hw, u8 *data, + unsigned int data_len) +{ + unsigned int word_len, read_len = 0; + int err; + + while (read_len < data_len) { + word_len = min_t(unsigned int, data_len - read_len, + ST_LSM6DSX_MAX_WORD_LEN); + err = regmap_bulk_read(hw->regmap, + ST_LSM6DSX_REG_FIFO_OUTL_ADDR, + data + read_len, word_len); + if (err < 0) + return err; + read_len += word_len; + } + return 0; } /** @@ -223,11 +247,11 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) struct st_lsm6dsx_sensor *acc_sensor, *gyro_sensor; s64 acc_ts, acc_delta_ts, gyro_ts, gyro_delta_ts; u8 iio_buff[ALIGN(ST_LSM6DSX_SAMPLE_SIZE, sizeof(s64)) + sizeof(s64)]; - u8 buff[pattern_len]; __le16 fifo_status; - err = hw->tf->read(hw->dev, hw->settings->fifo_ops.fifo_diff.addr, - sizeof(fifo_status), (u8 *)&fifo_status); + err = regmap_bulk_read(hw->regmap, + hw->settings->fifo_ops.fifo_diff.addr, + &fifo_status, sizeof(fifo_status)); if (err < 0) return err; @@ -255,8 +279,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) samples); for (read_len = 0; read_len < fifo_len; read_len += pattern_len) { - err = hw->tf->read(hw->dev, ST_LSM6DSX_REG_FIFO_OUTL_ADDR, - sizeof(buff), buff); + err = st_lsm6dsx_read_block(hw, hw->buff, pattern_len); if (err < 0) return err; @@ -281,7 +304,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) while (acc_sip > 0 || gyro_sip > 0) { if (gyro_sip-- > 0) { - memcpy(iio_buff, &buff[offset], + memcpy(iio_buff, &hw->buff[offset], ST_LSM6DSX_SAMPLE_SIZE); iio_push_to_buffers_with_timestamp( hw->iio_devs[ST_LSM6DSX_ID_GYRO], @@ -291,7 +314,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) } if (acc_sip-- > 0) { - memcpy(iio_buff, &buff[offset], + memcpy(iio_buff, &hw->buff[offset], ST_LSM6DSX_SAMPLE_SIZE); iio_push_to_buffers_with_timestamp( hw->iio_devs[ST_LSM6DSX_ID_ACC], @@ -325,38 +348,40 @@ static int st_lsm6dsx_update_fifo(struct iio_dev *iio_dev, bool enable) struct st_lsm6dsx_hw *hw = sensor->hw; int err; + mutex_lock(&hw->conf_lock); + if (hw->fifo_mode != ST_LSM6DSX_FIFO_BYPASS) { err = st_lsm6dsx_flush_fifo(hw); if (err < 0) - return err; + goto out; } if (enable) { err = st_lsm6dsx_sensor_enable(sensor); if (err < 0) - return err; + goto out; } else { err = st_lsm6dsx_sensor_disable(sensor); if (err < 0) - return err; + goto out; } err = st_lsm6dsx_set_fifo_odr(sensor, enable); if (err < 0) - return err; + goto out; err = st_lsm6dsx_update_decimators(hw); if (err < 0) - return err; + goto out; err = st_lsm6dsx_update_watermark(sensor, sensor->watermark); if (err < 0) - return err; + goto out; if (hw->enable_mask) { err = st_lsm6dsx_set_fifo_mode(hw, ST_LSM6DSX_FIFO_CONT); if (err < 0) - return err; + goto out; /* * store enable buffer timestamp as reference to compute @@ -365,7 +390,10 @@ static int st_lsm6dsx_update_fifo(struct iio_dev *iio_dev, bool enable) sensor->ts = iio_get_time_ns(iio_dev); } - return 0; +out: + mutex_unlock(&hw->conf_lock); + + return err; } static irqreturn_t st_lsm6dsx_handler_irq(int irq, void *private) @@ -444,17 +472,20 @@ int st_lsm6dsx_fifo_setup(struct st_lsm6dsx_hw *hw) return -EINVAL; } - err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_HLACTIVE_ADDR, - ST_LSM6DSX_REG_HLACTIVE_MASK, - irq_active_low); + err = regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_HLACTIVE_ADDR, + ST_LSM6DSX_REG_HLACTIVE_MASK, + FIELD_PREP(ST_LSM6DSX_REG_HLACTIVE_MASK, + irq_active_low)); if (err < 0) return err; pdata = (struct st_sensors_platform_data *)hw->dev->platform_data; if ((np && of_property_read_bool(np, "drive-open-drain")) || (pdata && pdata->open_drain)) { - err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_PP_OD_ADDR, - ST_LSM6DSX_REG_PP_OD_MASK, 1); + err = regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_PP_OD_ADDR, + ST_LSM6DSX_REG_PP_OD_MASK, + FIELD_PREP(ST_LSM6DSX_REG_PP_OD_MASK, + 1)); if (err < 0) return err; diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index 239c735242be..c2fa3239b9c6 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -37,6 +37,8 @@ #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/pm.h> +#include <linux/regmap.h> +#include <linux/bitfield.h> #include <linux/platform_data/st_sensors_pdata.h> @@ -277,36 +279,9 @@ static const struct iio_chan_spec st_lsm6dsx_gyro_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(3), }; -int st_lsm6dsx_write_with_mask(struct st_lsm6dsx_hw *hw, u8 addr, u8 mask, - u8 val) -{ - u8 data; - int err; - - mutex_lock(&hw->lock); - - err = hw->tf->read(hw->dev, addr, sizeof(data), &data); - if (err < 0) { - dev_err(hw->dev, "failed to read %02x register\n", addr); - goto out; - } - - data = (data & ~mask) | ((val << __ffs(mask)) & mask); - - err = hw->tf->write(hw->dev, addr, sizeof(data), &data); - if (err < 0) - dev_err(hw->dev, "failed to write %02x register\n", addr); - -out: - mutex_unlock(&hw->lock); - - return err; -} - static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id) { - int err, i, j; - u8 data; + int err, i, j, data; for (i = 0; i < ARRAY_SIZE(st_lsm6dsx_sensor_settings); i++) { for (j = 0; j < ST_LSM6DSX_MAX_ID; j++) { @@ -322,8 +297,7 @@ static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id) return -ENODEV; } - err = hw->tf->read(hw->dev, ST_LSM6DSX_REG_WHOAMI_ADDR, sizeof(data), - &data); + err = regmap_read(hw->regmap, ST_LSM6DSX_REG_WHOAMI_ADDR, &data); if (err < 0) { dev_err(hw->dev, "failed to read whoami register\n"); return err; @@ -342,22 +316,22 @@ static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id) static int st_lsm6dsx_set_full_scale(struct st_lsm6dsx_sensor *sensor, u32 gain) { - enum st_lsm6dsx_sensor_id id = sensor->id; + struct st_lsm6dsx_hw *hw = sensor->hw; + const struct st_lsm6dsx_reg *reg; int i, err; u8 val; for (i = 0; i < ST_LSM6DSX_FS_LIST_SIZE; i++) - if (st_lsm6dsx_fs_table[id].fs_avl[i].gain == gain) + if (st_lsm6dsx_fs_table[sensor->id].fs_avl[i].gain == gain) break; if (i == ST_LSM6DSX_FS_LIST_SIZE) return -EINVAL; - val = st_lsm6dsx_fs_table[id].fs_avl[i].val; - err = st_lsm6dsx_write_with_mask(sensor->hw, - st_lsm6dsx_fs_table[id].reg.addr, - st_lsm6dsx_fs_table[id].reg.mask, - val); + val = st_lsm6dsx_fs_table[sensor->id].fs_avl[i].val; + reg = &st_lsm6dsx_fs_table[sensor->id].reg; + err = regmap_update_bits(hw->regmap, reg->addr, reg->mask, + ST_LSM6DSX_SHIFT_VAL(val, reg->mask)); if (err < 0) return err; @@ -385,7 +359,8 @@ static int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, static int st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u16 odr) { - enum st_lsm6dsx_sensor_id id = sensor->id; + struct st_lsm6dsx_hw *hw = sensor->hw; + const struct st_lsm6dsx_reg *reg; int err; u8 val; @@ -393,10 +368,9 @@ static int st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u16 odr) if (err < 0) return err; - return st_lsm6dsx_write_with_mask(sensor->hw, - st_lsm6dsx_odr_table[id].reg.addr, - st_lsm6dsx_odr_table[id].reg.mask, - val); + reg = &st_lsm6dsx_odr_table[sensor->id].reg; + return regmap_update_bits(hw->regmap, reg->addr, reg->mask, + ST_LSM6DSX_SHIFT_VAL(val, reg->mask)); } int st_lsm6dsx_sensor_enable(struct st_lsm6dsx_sensor *sensor) @@ -414,16 +388,17 @@ int st_lsm6dsx_sensor_enable(struct st_lsm6dsx_sensor *sensor) int st_lsm6dsx_sensor_disable(struct st_lsm6dsx_sensor *sensor) { - enum st_lsm6dsx_sensor_id id = sensor->id; + struct st_lsm6dsx_hw *hw = sensor->hw; + const struct st_lsm6dsx_reg *reg; int err; - err = st_lsm6dsx_write_with_mask(sensor->hw, - st_lsm6dsx_odr_table[id].reg.addr, - st_lsm6dsx_odr_table[id].reg.mask, 0); + reg = &st_lsm6dsx_odr_table[sensor->id].reg; + err = regmap_update_bits(hw->regmap, reg->addr, reg->mask, + ST_LSM6DSX_SHIFT_VAL(0, reg->mask)); if (err < 0) return err; - sensor->hw->enable_mask &= ~BIT(id); + sensor->hw->enable_mask &= ~BIT(sensor->id); return 0; } @@ -431,6 +406,7 @@ int st_lsm6dsx_sensor_disable(struct st_lsm6dsx_sensor *sensor) static int st_lsm6dsx_read_oneshot(struct st_lsm6dsx_sensor *sensor, u8 addr, int *val) { + struct st_lsm6dsx_hw *hw = sensor->hw; int err, delay; __le16 data; @@ -441,14 +417,13 @@ static int st_lsm6dsx_read_oneshot(struct st_lsm6dsx_sensor *sensor, delay = 1000000 / sensor->odr; usleep_range(delay, 2 * delay); - err = sensor->hw->tf->read(sensor->hw->dev, addr, sizeof(data), - (u8 *)&data); + err = regmap_bulk_read(hw->regmap, addr, &data, sizeof(data)); if (err < 0) return err; st_lsm6dsx_sensor_disable(sensor); - *val = (s16)data; + *val = (s16)le16_to_cpu(data); return IIO_VAL_INT; } @@ -528,7 +503,12 @@ static int st_lsm6dsx_set_watermark(struct iio_dev *iio_dev, unsigned int val) if (val < 1 || val > hw->settings->max_fifo_size) return -EINVAL; + mutex_lock(&hw->conf_lock); + err = st_lsm6dsx_update_watermark(sensor, val); + + mutex_unlock(&hw->conf_lock); + if (err < 0) return err; @@ -652,20 +632,20 @@ static int st_lsm6dsx_get_drdy_reg(struct st_lsm6dsx_hw *hw, u8 *drdy_reg) static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw) { - u8 data, drdy_int_reg; + u8 drdy_int_reg; int err; - data = ST_LSM6DSX_REG_RESET_MASK; - err = hw->tf->write(hw->dev, ST_LSM6DSX_REG_RESET_ADDR, sizeof(data), - &data); + err = regmap_write(hw->regmap, ST_LSM6DSX_REG_RESET_ADDR, + ST_LSM6DSX_REG_RESET_MASK); if (err < 0) return err; msleep(200); /* enable Block Data Update */ - err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_BDU_ADDR, - ST_LSM6DSX_REG_BDU_MASK, 1); + err = regmap_update_bits(hw->regmap, ST_LSM6DSX_REG_BDU_ADDR, + ST_LSM6DSX_REG_BDU_MASK, + FIELD_PREP(ST_LSM6DSX_REG_BDU_MASK, 1)); if (err < 0) return err; @@ -674,8 +654,10 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw) if (err < 0) return err; - return st_lsm6dsx_write_with_mask(hw, drdy_int_reg, - ST_LSM6DSX_REG_FIFO_FTH_IRQ_MASK, 1); + return regmap_update_bits(hw->regmap, drdy_int_reg, + ST_LSM6DSX_REG_FIFO_FTH_IRQ_MASK, + FIELD_PREP(ST_LSM6DSX_REG_FIFO_FTH_IRQ_MASK, + 1)); } static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw, @@ -726,7 +708,7 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw, } int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name, - const struct st_lsm6dsx_transfer_function *tf_ops) + struct regmap *regmap) { struct st_lsm6dsx_hw *hw; int i, err; @@ -737,12 +719,16 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id, const char *name, dev_set_drvdata(dev, (void *)hw); - mutex_init(&hw->lock); mutex_init(&hw->fifo_lock); + mutex_init(&hw->conf_lock); + + hw->buff = devm_kzalloc(dev, ST_LSM6DSX_BUFF_SIZE, GFP_KERNEL); + if (!hw->buff) + return -ENOMEM; hw->dev = dev; hw->irq = irq; - hw->tf = tf_ops; + hw->regmap = regmap; err = st_lsm6dsx_check_whoami(hw, hw_id); if (err < 0) @@ -778,6 +764,7 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev) { struct st_lsm6dsx_hw *hw = dev_get_drvdata(dev); struct st_lsm6dsx_sensor *sensor; + const struct st_lsm6dsx_reg *reg; int i, err = 0; for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) { @@ -785,9 +772,9 @@ static int __maybe_unused st_lsm6dsx_suspend(struct device *dev) if (!(hw->enable_mask & BIT(sensor->id))) continue; - err = st_lsm6dsx_write_with_mask(hw, - st_lsm6dsx_odr_table[sensor->id].reg.addr, - st_lsm6dsx_odr_table[sensor->id].reg.mask, 0); + reg = &st_lsm6dsx_odr_table[sensor->id].reg; + err = regmap_update_bits(hw->regmap, reg->addr, reg->mask, + ST_LSM6DSX_SHIFT_VAL(0, reg->mask)); if (err < 0) return err; } diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c index 305fec712ab0..41525dd2aab7 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_i2c.c @@ -14,55 +14,30 @@ #include <linux/i2c.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/regmap.h> #include "st_lsm6dsx.h" -static int st_lsm6dsx_i2c_read(struct device *dev, u8 addr, int len, u8 *data) -{ - struct i2c_client *client = to_i2c_client(dev); - struct i2c_msg msg[2]; - - msg[0].addr = client->addr; - msg[0].flags = client->flags; - msg[0].len = 1; - msg[0].buf = &addr; - - msg[1].addr = client->addr; - msg[1].flags = client->flags | I2C_M_RD; - msg[1].len = len; - msg[1].buf = data; - - return i2c_transfer(client->adapter, msg, 2); -} - -static int st_lsm6dsx_i2c_write(struct device *dev, u8 addr, int len, u8 *data) -{ - struct i2c_client *client = to_i2c_client(dev); - struct i2c_msg msg; - u8 send[len + 1]; - - send[0] = addr; - memcpy(&send[1], data, len * sizeof(u8)); - - msg.addr = client->addr; - msg.flags = client->flags; - msg.len = len + 1; - msg.buf = send; - - return i2c_transfer(client->adapter, &msg, 1); -} - -static const struct st_lsm6dsx_transfer_function st_lsm6dsx_transfer_fn = { - .read = st_lsm6dsx_i2c_read, - .write = st_lsm6dsx_i2c_write, +static const struct regmap_config st_lsm6dsx_i2c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, }; static int st_lsm6dsx_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { + int hw_id = id->driver_data; + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Failed to register i2c regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + return st_lsm6dsx_probe(&client->dev, client->irq, - (int)id->driver_data, id->name, - &st_lsm6dsx_transfer_fn); + hw_id, id->name, regmap); } static const struct of_device_id st_lsm6dsx_i2c_of_match[] = { diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c index 95472f153ad2..2c8135834479 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_spi.c @@ -14,72 +14,30 @@ #include <linux/spi/spi.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/regmap.h> #include "st_lsm6dsx.h" -#define SENSORS_SPI_READ BIT(7) - -static int st_lsm6dsx_spi_read(struct device *dev, u8 addr, int len, - u8 *data) -{ - struct spi_device *spi = to_spi_device(dev); - struct st_lsm6dsx_hw *hw = spi_get_drvdata(spi); - int err; - - struct spi_transfer xfers[] = { - { - .tx_buf = hw->tb.tx_buf, - .bits_per_word = 8, - .len = 1, - }, - { - .rx_buf = hw->tb.rx_buf, - .bits_per_word = 8, - .len = len, - } - }; - - hw->tb.tx_buf[0] = addr | SENSORS_SPI_READ; - - err = spi_sync_transfer(spi, xfers, ARRAY_SIZE(xfers)); - if (err < 0) - return err; - - memcpy(data, hw->tb.rx_buf, len * sizeof(u8)); - - return len; -} - -static int st_lsm6dsx_spi_write(struct device *dev, u8 addr, int len, - u8 *data) -{ - struct st_lsm6dsx_hw *hw; - struct spi_device *spi; - - if (len >= ST_LSM6DSX_TX_MAX_LENGTH) - return -ENOMEM; - - spi = to_spi_device(dev); - hw = spi_get_drvdata(spi); - - hw->tb.tx_buf[0] = addr; - memcpy(&hw->tb.tx_buf[1], data, len); - - return spi_write(spi, hw->tb.tx_buf, len + 1); -} - -static const struct st_lsm6dsx_transfer_function st_lsm6dsx_transfer_fn = { - .read = st_lsm6dsx_spi_read, - .write = st_lsm6dsx_spi_write, +static const struct regmap_config st_lsm6dsx_spi_regmap_config = { + .reg_bits = 8, + .val_bits = 8, }; static int st_lsm6dsx_spi_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); + int hw_id = id->driver_data; + struct regmap *regmap; + + regmap = devm_regmap_init_spi(spi, &st_lsm6dsx_spi_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to register spi regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } return st_lsm6dsx_probe(&spi->dev, spi->irq, - (int)id->driver_data, id->name, - &st_lsm6dsx_transfer_fn); + hw_id, id->name, regmap); } static const struct of_device_id st_lsm6dsx_spi_of_match[] = { diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index 0bc2fe31f211..6184c100a94a 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -1198,6 +1198,18 @@ out: return ret ? ret : len; } +static ssize_t iio_dma_show_data_available(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + size_t bytes; + + bytes = iio_buffer_data_available(indio_dev->buffer); + + return sprintf(buf, "%zu\n", bytes); +} + static DEVICE_ATTR(length, S_IRUGO | S_IWUSR, iio_buffer_read_length, iio_buffer_write_length); static struct device_attribute dev_attr_length_ro = __ATTR(length, @@ -1208,11 +1220,14 @@ static DEVICE_ATTR(watermark, S_IRUGO | S_IWUSR, iio_buffer_show_watermark, iio_buffer_store_watermark); static struct device_attribute dev_attr_watermark_ro = __ATTR(watermark, S_IRUGO, iio_buffer_show_watermark, NULL); +static DEVICE_ATTR(data_available, S_IRUGO, + iio_dma_show_data_available, NULL); static struct attribute *iio_buffer_attrs[] = { &dev_attr_length.attr, &dev_attr_enable.attr, &dev_attr_watermark.attr, + &dev_attr_data_available.attr, }; int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 2f0998ebeed2..19bdf3d2962a 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -588,6 +588,7 @@ static ssize_t __iio_format_value(char *buf, size_t len, unsigned int type, return snprintf(buf, len, "%d", vals[0]); case IIO_VAL_INT_PLUS_MICRO_DB: scale_db = true; + /* fall through */ case IIO_VAL_INT_PLUS_MICRO: if (vals[1] < 0) return snprintf(buf, len, "-%d.%06u%s", abs(vals[0]), diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index 2356ed9285df..93fd421b10d7 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -334,6 +334,30 @@ config STK3310 Choosing M will build the driver as a module. If so, the module will be called stk3310. +config ST_UVIS25 + tristate "STMicroelectronics UVIS25 sensor driver" + depends on (I2C || SPI) + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + select ST_UVIS25_I2C if (I2C) + select ST_UVIS25_SPI if (SPI_MASTER) + help + Say yes here to build support for STMicroelectronics UVIS25 + uv sensor + + To compile this driver as a module, choose M here: the module + will be called st_uvis25. + +config ST_UVIS25_I2C + tristate + depends on ST_UVIS25 + select REGMAP_I2C + +config ST_UVIS25_SPI + tristate + depends on ST_UVIS25 + select REGMAP_SPI + config TCS3414 tristate "TAOS TCS3414 digital color sensor" depends on I2C @@ -425,4 +449,14 @@ config VL6180 To compile this driver as a module, choose M here: the module will be called vl6180. +config ZOPT2201 + tristate "ZOPT2201 ALS and UV B sensor" + depends on I2C + help + Say Y here if you want to build a driver for the IDT + ZOPT2201 ambient light and UV B sensor. + + To compile this driver as a module, choose M here: the + module will be called zopt2201. + endmenu diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index c263469b7ce9..f714067a7816 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -33,6 +33,9 @@ obj-$(CONFIG_RPR0521) += rpr0521.o obj-$(CONFIG_SENSORS_TSL2563) += tsl2563.o obj-$(CONFIG_SI1145) += si1145.o obj-$(CONFIG_STK3310) += stk3310.o +obj-$(CONFIG_ST_UVIS25) += st_uvis25_core.o +obj-$(CONFIG_ST_UVIS25_I2C) += st_uvis25_i2c.o +obj-$(CONFIG_ST_UVIS25_SPI) += st_uvis25_spi.o obj-$(CONFIG_TCS3414) += tcs3414.o obj-$(CONFIG_TCS3472) += tcs3472.o obj-$(CONFIG_TSL2583) += tsl2583.o @@ -41,3 +44,4 @@ obj-$(CONFIG_US5182D) += us5182d.o obj-$(CONFIG_VCNL4000) += vcnl4000.o obj-$(CONFIG_VEML6070) += veml6070.o obj-$(CONFIG_VL6180) += vl6180.o +obj-$(CONFIG_ZOPT2201) += zopt2201.o diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c index b2a46b390d5c..acfad4aeb27a 100644 --- a/drivers/iio/light/cros_ec_light_prox.c +++ b/drivers/iio/light/cros_ec_light_prox.c @@ -181,7 +181,6 @@ static int cros_ec_light_prox_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent); - struct cros_ec_device *ec_device; struct iio_dev *indio_dev; struct cros_ec_light_prox_state *state; struct iio_chan_spec *channel; @@ -191,7 +190,6 @@ static int cros_ec_light_prox_probe(struct platform_device *pdev) dev_warn(dev, "No CROS EC device found.\n"); return -EINVAL; } - ec_device = ec_dev->ec_dev; indio_dev = devm_iio_device_alloc(dev, sizeof(*state)); if (!indio_dev) diff --git a/drivers/iio/light/st_uvis25.h b/drivers/iio/light/st_uvis25.h new file mode 100644 index 000000000000..5e970ab480cd --- /dev/null +++ b/drivers/iio/light/st_uvis25.h @@ -0,0 +1,37 @@ +/* + * STMicroelectronics uvis25 sensor driver + * + * Copyright 2017 STMicroelectronics Inc. + * + * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> + * + * Licensed under the GPL-2. + */ + +#ifndef ST_UVIS25_H +#define ST_UVIS25_H + +#define ST_UVIS25_DEV_NAME "uvis25" + +#include <linux/iio/iio.h> + +/** + * struct st_uvis25_hw - ST UVIS25 sensor instance + * @regmap: Register map of the device. + * @trig: The trigger in use by the driver. + * @enabled: Status of the sensor (false->off, true->on). + * @irq: Device interrupt line (I2C or SPI). + */ +struct st_uvis25_hw { + struct regmap *regmap; + + struct iio_trigger *trig; + bool enabled; + int irq; +}; + +extern const struct dev_pm_ops st_uvis25_pm_ops; + +int st_uvis25_probe(struct device *dev, int irq, struct regmap *regmap); + +#endif /* ST_UVIS25_H */ diff --git a/drivers/iio/light/st_uvis25_core.c b/drivers/iio/light/st_uvis25_core.c new file mode 100644 index 000000000000..302635836e6b --- /dev/null +++ b/drivers/iio/light/st_uvis25_core.c @@ -0,0 +1,359 @@ +/* + * STMicroelectronics uvis25 sensor driver + * + * Copyright 2017 STMicroelectronics Inc. + * + * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> + * + * Licensed under the GPL-2. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/iio/sysfs.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/interrupt.h> +#include <linux/irqreturn.h> +#include <linux/iio/trigger.h> +#include <linux/iio/trigger_consumer.h> +#include <linux/iio/triggered_buffer.h> +#include <linux/iio/buffer.h> +#include <linux/regmap.h> + +#include "st_uvis25.h" + +#define ST_UVIS25_REG_WHOAMI_ADDR 0x0f +#define ST_UVIS25_REG_WHOAMI_VAL 0xca +#define ST_UVIS25_REG_CTRL1_ADDR 0x20 +#define ST_UVIS25_REG_ODR_MASK BIT(0) +#define ST_UVIS25_REG_BDU_MASK BIT(1) +#define ST_UVIS25_REG_CTRL2_ADDR 0x21 +#define ST_UVIS25_REG_BOOT_MASK BIT(7) +#define ST_UVIS25_REG_CTRL3_ADDR 0x22 +#define ST_UVIS25_REG_HL_MASK BIT(7) +#define ST_UVIS25_REG_STATUS_ADDR 0x27 +#define ST_UVIS25_REG_UV_DA_MASK BIT(0) +#define ST_UVIS25_REG_OUT_ADDR 0x28 + +static const struct iio_chan_spec st_uvis25_channels[] = { + { + .type = IIO_UVINDEX, + .address = ST_UVIS25_REG_OUT_ADDR, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + .scan_index = 0, + .scan_type = { + .sign = 'u', + .realbits = 8, + .storagebits = 8, + }, + }, + IIO_CHAN_SOFT_TIMESTAMP(1), +}; + +static int st_uvis25_check_whoami(struct st_uvis25_hw *hw) +{ + int err, data; + + err = regmap_read(hw->regmap, ST_UVIS25_REG_WHOAMI_ADDR, &data); + if (err < 0) { + dev_err(regmap_get_device(hw->regmap), + "failed to read whoami register\n"); + return err; + } + + if (data != ST_UVIS25_REG_WHOAMI_VAL) { + dev_err(regmap_get_device(hw->regmap), + "wrong whoami {%02x vs %02x}\n", + data, ST_UVIS25_REG_WHOAMI_VAL); + return -ENODEV; + } + + return 0; +} + +static int st_uvis25_set_enable(struct st_uvis25_hw *hw, bool enable) +{ + int err; + + err = regmap_update_bits(hw->regmap, ST_UVIS25_REG_CTRL1_ADDR, + ST_UVIS25_REG_ODR_MASK, enable); + if (err < 0) + return err; + + hw->enabled = enable; + + return 0; +} + +static int st_uvis25_read_oneshot(struct st_uvis25_hw *hw, u8 addr, int *val) +{ + int err; + + err = st_uvis25_set_enable(hw, true); + if (err < 0) + return err; + + msleep(1500); + + /* + * in order to avoid possible race conditions with interrupt + * generation, disable the sensor first and then poll output + * register. That sequence guarantees the interrupt will be reset + * when irq line is unmasked + */ + err = st_uvis25_set_enable(hw, false); + if (err < 0) + return err; + + err = regmap_read(hw->regmap, addr, val); + + return err < 0 ? err : IIO_VAL_INT; +} + +static int st_uvis25_read_raw(struct iio_dev *iio_dev, + struct iio_chan_spec const *ch, + int *val, int *val2, long mask) +{ + int ret; + + ret = iio_device_claim_direct_mode(iio_dev); + if (ret) + return ret; + + switch (mask) { + case IIO_CHAN_INFO_PROCESSED: { + struct st_uvis25_hw *hw = iio_priv(iio_dev); + + /* + * mask irq line during oneshot read since the sensor + * does not export the capability to disable data-ready line + * in the register map and it is enabled by default. + * If the line is unmasked during read_raw() it will be set + * active and never reset since the trigger is disabled + */ + if (hw->irq > 0) + disable_irq(hw->irq); + ret = st_uvis25_read_oneshot(hw, ch->address, val); + if (hw->irq > 0) + enable_irq(hw->irq); + break; + } + default: + ret = -EINVAL; + break; + } + + iio_device_release_direct_mode(iio_dev); + + return ret; +} + +static irqreturn_t st_uvis25_trigger_handler_thread(int irq, void *private) +{ + struct st_uvis25_hw *hw = private; + int err, status; + + err = regmap_read(hw->regmap, ST_UVIS25_REG_STATUS_ADDR, &status); + if (err < 0) + return IRQ_HANDLED; + + if (!(status & ST_UVIS25_REG_UV_DA_MASK)) + return IRQ_NONE; + + iio_trigger_poll_chained(hw->trig); + + return IRQ_HANDLED; +} + +static int st_uvis25_allocate_trigger(struct iio_dev *iio_dev) +{ + struct st_uvis25_hw *hw = iio_priv(iio_dev); + struct device *dev = regmap_get_device(hw->regmap); + bool irq_active_low = false; + unsigned long irq_type; + int err; + + irq_type = irqd_get_trigger_type(irq_get_irq_data(hw->irq)); + + switch (irq_type) { + case IRQF_TRIGGER_HIGH: + case IRQF_TRIGGER_RISING: + break; + case IRQF_TRIGGER_LOW: + case IRQF_TRIGGER_FALLING: + irq_active_low = true; + break; + default: + dev_info(dev, "mode %lx unsupported\n", irq_type); + return -EINVAL; + } + + err = regmap_update_bits(hw->regmap, ST_UVIS25_REG_CTRL3_ADDR, + ST_UVIS25_REG_HL_MASK, irq_active_low); + if (err < 0) + return err; + + err = devm_request_threaded_irq(dev, hw->irq, NULL, + st_uvis25_trigger_handler_thread, + irq_type | IRQF_ONESHOT, + iio_dev->name, hw); + if (err) { + dev_err(dev, "failed to request trigger irq %d\n", + hw->irq); + return err; + } + + hw->trig = devm_iio_trigger_alloc(dev, "%s-trigger", + iio_dev->name); + if (!hw->trig) + return -ENOMEM; + + iio_trigger_set_drvdata(hw->trig, iio_dev); + hw->trig->dev.parent = dev; + + return devm_iio_trigger_register(dev, hw->trig); +} + +static int st_uvis25_buffer_preenable(struct iio_dev *iio_dev) +{ + return st_uvis25_set_enable(iio_priv(iio_dev), true); +} + +static int st_uvis25_buffer_postdisable(struct iio_dev *iio_dev) +{ + return st_uvis25_set_enable(iio_priv(iio_dev), false); +} + +static const struct iio_buffer_setup_ops st_uvis25_buffer_ops = { + .preenable = st_uvis25_buffer_preenable, + .postenable = iio_triggered_buffer_postenable, + .predisable = iio_triggered_buffer_predisable, + .postdisable = st_uvis25_buffer_postdisable, +}; + +static irqreturn_t st_uvis25_buffer_handler_thread(int irq, void *p) +{ + u8 buffer[ALIGN(sizeof(u8), sizeof(s64)) + sizeof(s64)]; + struct iio_poll_func *pf = p; + struct iio_dev *iio_dev = pf->indio_dev; + struct st_uvis25_hw *hw = iio_priv(iio_dev); + int err; + + err = regmap_read(hw->regmap, ST_UVIS25_REG_OUT_ADDR, (int *)buffer); + if (err < 0) + goto out; + + iio_push_to_buffers_with_timestamp(iio_dev, buffer, + iio_get_time_ns(iio_dev)); + +out: + iio_trigger_notify_done(hw->trig); + + return IRQ_HANDLED; +} + +static int st_uvis25_allocate_buffer(struct iio_dev *iio_dev) +{ + struct st_uvis25_hw *hw = iio_priv(iio_dev); + + return devm_iio_triggered_buffer_setup(regmap_get_device(hw->regmap), + iio_dev, NULL, + st_uvis25_buffer_handler_thread, + &st_uvis25_buffer_ops); +} + +static const struct iio_info st_uvis25_info = { + .read_raw = st_uvis25_read_raw, +}; + +static int st_uvis25_init_sensor(struct st_uvis25_hw *hw) +{ + int err; + + err = regmap_update_bits(hw->regmap, ST_UVIS25_REG_CTRL2_ADDR, + ST_UVIS25_REG_BOOT_MASK, 1); + if (err < 0) + return err; + + msleep(2000); + + return regmap_update_bits(hw->regmap, ST_UVIS25_REG_CTRL1_ADDR, + ST_UVIS25_REG_BDU_MASK, 1); +} + +int st_uvis25_probe(struct device *dev, int irq, struct regmap *regmap) +{ + struct st_uvis25_hw *hw; + struct iio_dev *iio_dev; + int err; + + iio_dev = devm_iio_device_alloc(dev, sizeof(*hw)); + if (!iio_dev) + return -ENOMEM; + + dev_set_drvdata(dev, (void *)iio_dev); + + hw = iio_priv(iio_dev); + hw->irq = irq; + hw->regmap = regmap; + + err = st_uvis25_check_whoami(hw); + if (err < 0) + return err; + + iio_dev->modes = INDIO_DIRECT_MODE; + iio_dev->dev.parent = dev; + iio_dev->channels = st_uvis25_channels; + iio_dev->num_channels = ARRAY_SIZE(st_uvis25_channels); + iio_dev->name = ST_UVIS25_DEV_NAME; + iio_dev->info = &st_uvis25_info; + + err = st_uvis25_init_sensor(hw); + if (err < 0) + return err; + + if (hw->irq > 0) { + err = st_uvis25_allocate_buffer(iio_dev); + if (err < 0) + return err; + + err = st_uvis25_allocate_trigger(iio_dev); + if (err) + return err; + } + + return devm_iio_device_register(dev, iio_dev); +} +EXPORT_SYMBOL(st_uvis25_probe); + +static int __maybe_unused st_uvis25_suspend(struct device *dev) +{ + struct iio_dev *iio_dev = dev_get_drvdata(dev); + struct st_uvis25_hw *hw = iio_priv(iio_dev); + + return regmap_update_bits(hw->regmap, ST_UVIS25_REG_CTRL1_ADDR, + ST_UVIS25_REG_ODR_MASK, 0); +} + +static int __maybe_unused st_uvis25_resume(struct device *dev) +{ + struct iio_dev *iio_dev = dev_get_drvdata(dev); + struct st_uvis25_hw *hw = iio_priv(iio_dev); + + if (hw->enabled) + return regmap_update_bits(hw->regmap, ST_UVIS25_REG_CTRL1_ADDR, + ST_UVIS25_REG_ODR_MASK, 1); + + return 0; +} + +const struct dev_pm_ops st_uvis25_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(st_uvis25_suspend, st_uvis25_resume) +}; +EXPORT_SYMBOL(st_uvis25_pm_ops); + +MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>"); +MODULE_DESCRIPTION("STMicroelectronics uvis25 sensor driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/light/st_uvis25_i2c.c b/drivers/iio/light/st_uvis25_i2c.c new file mode 100644 index 000000000000..afd6eb01a202 --- /dev/null +++ b/drivers/iio/light/st_uvis25_i2c.c @@ -0,0 +1,69 @@ +/* + * STMicroelectronics uvis25 i2c driver + * + * Copyright 2017 STMicroelectronics Inc. + * + * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> + * + * Licensed under the GPL-2. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/acpi.h> +#include <linux/i2c.h> +#include <linux/slab.h> +#include <linux/regmap.h> + +#include "st_uvis25.h" + +#define UVIS25_I2C_AUTO_INCREMENT BIT(7) + +static const struct regmap_config st_uvis25_i2c_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .write_flag_mask = UVIS25_I2C_AUTO_INCREMENT, + .read_flag_mask = UVIS25_I2C_AUTO_INCREMENT, +}; + +static int st_uvis25_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&client->dev, "Failed to register i2c regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + return st_uvis25_probe(&client->dev, client->irq, regmap); +} + +static const struct of_device_id st_uvis25_i2c_of_match[] = { + { .compatible = "st,uvis25", }, + {}, +}; +MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match); + +static const struct i2c_device_id st_uvis25_i2c_id_table[] = { + { ST_UVIS25_DEV_NAME }, + {}, +}; +MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table); + +static struct i2c_driver st_uvis25_driver = { + .driver = { + .name = "st_uvis25_i2c", + .pm = &st_uvis25_pm_ops, + .of_match_table = of_match_ptr(st_uvis25_i2c_of_match), + }, + .probe = st_uvis25_i2c_probe, + .id_table = st_uvis25_i2c_id_table, +}; +module_i2c_driver(st_uvis25_driver); + +MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>"); +MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/light/st_uvis25_spi.c b/drivers/iio/light/st_uvis25_spi.c new file mode 100644 index 000000000000..cdfee5e84d5e --- /dev/null +++ b/drivers/iio/light/st_uvis25_spi.c @@ -0,0 +1,68 @@ +/* + * STMicroelectronics uvis25 spi driver + * + * Copyright 2017 STMicroelectronics Inc. + * + * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> + * + * Licensed under the GPL-2. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/spi/spi.h> +#include <linux/slab.h> +#include <linux/regmap.h> + +#include "st_uvis25.h" + +#define UVIS25_SENSORS_SPI_READ BIT(7) +#define UVIS25_SPI_AUTO_INCREMENT BIT(6) + +static const struct regmap_config st_uvis25_spi_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .read_flag_mask = UVIS25_SENSORS_SPI_READ | UVIS25_SPI_AUTO_INCREMENT, + .write_flag_mask = UVIS25_SPI_AUTO_INCREMENT, +}; + +static int st_uvis25_spi_probe(struct spi_device *spi) +{ + struct regmap *regmap; + + regmap = devm_regmap_init_spi(spi, &st_uvis25_spi_regmap_config); + if (IS_ERR(regmap)) { + dev_err(&spi->dev, "Failed to register spi regmap %d\n", + (int)PTR_ERR(regmap)); + return PTR_ERR(regmap); + } + + return st_uvis25_probe(&spi->dev, spi->irq, regmap); +} + +static const struct of_device_id st_uvis25_spi_of_match[] = { + { .compatible = "st,uvis25", }, + {}, +}; +MODULE_DEVICE_TABLE(of, st_uvis25_spi_of_match); + +static const struct spi_device_id st_uvis25_spi_id_table[] = { + { ST_UVIS25_DEV_NAME }, + {}, +}; +MODULE_DEVICE_TABLE(spi, st_uvis25_spi_id_table); + +static struct spi_driver st_uvis25_driver = { + .driver = { + .name = "st_uvis25_spi", + .pm = &st_uvis25_pm_ops, + .of_match_table = of_match_ptr(st_uvis25_spi_of_match), + }, + .probe = st_uvis25_spi_probe, + .id_table = st_uvis25_spi_id_table, +}; +module_spi_driver(st_uvis25_driver); + +MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>"); +MODULE_DESCRIPTION("STMicroelectronics uvis25 spi driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/light/zopt2201.c b/drivers/iio/light/zopt2201.c new file mode 100644 index 000000000000..041ac9effdb0 --- /dev/null +++ b/drivers/iio/light/zopt2201.c @@ -0,0 +1,568 @@ +/* + * zopt2201.c - Support for IDT ZOPT2201 ambient light and UV B sensor + * + * Copyright 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * Datasheet: https://www.idt.com/document/dst/zopt2201-datasheet + * 7-bit I2C slave addresses 0x53 (default) or 0x52 (programmed) + * + * TODO: interrupt support, ALS/UVB raw mode + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/mutex.h> +#include <linux/err.h> +#include <linux/delay.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#define ZOPT2201_DRV_NAME "zopt2201" + +/* Registers */ +#define ZOPT2201_MAIN_CTRL 0x00 +#define ZOPT2201_LS_MEAS_RATE 0x04 +#define ZOPT2201_LS_GAIN 0x05 +#define ZOPT2201_PART_ID 0x06 +#define ZOPT2201_MAIN_STATUS 0x07 +#define ZOPT2201_ALS_DATA 0x0d /* LSB first, 13 to 20 bits */ +#define ZOPT2201_UVB_DATA 0x10 /* LSB first, 13 to 20 bits */ +#define ZOPT2201_UV_COMP_DATA 0x13 /* LSB first, 13 to 20 bits */ +#define ZOPT2201_COMP_DATA 0x16 /* LSB first, 13 to 20 bits */ +#define ZOPT2201_INT_CFG 0x19 +#define ZOPT2201_INT_PST 0x1a + +#define ZOPT2201_MAIN_CTRL_LS_MODE BIT(3) /* 0 .. ALS, 1 .. UV B */ +#define ZOPT2201_MAIN_CTRL_LS_EN BIT(1) + +/* Values for ZOPT2201_LS_MEAS_RATE resolution / bit width */ +#define ZOPT2201_MEAS_RES_20BIT 0 /* takes 400 ms */ +#define ZOPT2201_MEAS_RES_19BIT 1 /* takes 200 ms */ +#define ZOPT2201_MEAS_RES_18BIT 2 /* takes 100 ms, default */ +#define ZOPT2201_MEAS_RES_17BIT 3 /* takes 50 ms */ +#define ZOPT2201_MEAS_RES_16BIT 4 /* takes 25 ms */ +#define ZOPT2201_MEAS_RES_13BIT 5 /* takes 3.125 ms */ +#define ZOPT2201_MEAS_RES_SHIFT 4 + +/* Values for ZOPT2201_LS_MEAS_RATE measurement rate */ +#define ZOPT2201_MEAS_FREQ_25MS 0 +#define ZOPT2201_MEAS_FREQ_50MS 1 +#define ZOPT2201_MEAS_FREQ_100MS 2 /* default */ +#define ZOPT2201_MEAS_FREQ_200MS 3 +#define ZOPT2201_MEAS_FREQ_500MS 4 +#define ZOPT2201_MEAS_FREQ_1000MS 5 +#define ZOPT2201_MEAS_FREQ_2000MS 6 + +/* Values for ZOPT2201_LS_GAIN */ +#define ZOPT2201_LS_GAIN_1 0 +#define ZOPT2201_LS_GAIN_3 1 +#define ZOPT2201_LS_GAIN_6 2 +#define ZOPT2201_LS_GAIN_9 3 +#define ZOPT2201_LS_GAIN_18 4 + +/* Values for ZOPT2201_MAIN_STATUS */ +#define ZOPT2201_MAIN_STATUS_POWERON BIT(5) +#define ZOPT2201_MAIN_STATUS_INT BIT(4) +#define ZOPT2201_MAIN_STATUS_DRDY BIT(3) + +#define ZOPT2201_PART_NUMBER 0xb2 + +struct zopt2201_data { + struct i2c_client *client; + struct mutex lock; + u8 gain; + u8 res; + u8 rate; +}; + +static const struct { + unsigned int gain; /* gain factor */ + unsigned int scale; /* micro lux per count */ +} zopt2201_gain_als[] = { + { 1, 19200000 }, + { 3, 6400000 }, + { 6, 3200000 }, + { 9, 2133333 }, + { 18, 1066666 }, +}; + +static const struct { + unsigned int gain; /* gain factor */ + unsigned int scale; /* micro W/m2 per count */ +} zopt2201_gain_uvb[] = { + { 1, 460800 }, + { 3, 153600 }, + { 6, 76800 }, + { 9, 51200 }, + { 18, 25600 }, +}; + +static const struct { + unsigned int bits; /* sensor resolution in bits */ + unsigned long us; /* measurement time in micro seconds */ +} zopt2201_resolution[] = { + { 20, 400000 }, + { 19, 200000 }, + { 18, 100000 }, + { 17, 50000 }, + { 16, 25000 }, + { 13, 3125 }, +}; + +static const struct { + unsigned int scale, uscale; /* scale factor as integer + micro */ + u8 gain; /* gain register value */ + u8 res; /* resolution register value */ +} zopt2201_scale_als[] = { + { 19, 200000, 0, 5 }, + { 6, 400000, 1, 5 }, + { 3, 200000, 2, 5 }, + { 2, 400000, 0, 4 }, + { 2, 133333, 3, 5 }, + { 1, 200000, 0, 3 }, + { 1, 66666, 4, 5 }, + { 0, 800000, 1, 4 }, + { 0, 600000, 0, 2 }, + { 0, 400000, 2, 4 }, + { 0, 300000, 0, 1 }, + { 0, 266666, 3, 4 }, + { 0, 200000, 2, 3 }, + { 0, 150000, 0, 0 }, + { 0, 133333, 4, 4 }, + { 0, 100000, 2, 2 }, + { 0, 66666, 4, 3 }, + { 0, 50000, 2, 1 }, + { 0, 33333, 4, 2 }, + { 0, 25000, 2, 0 }, + { 0, 16666, 4, 1 }, + { 0, 8333, 4, 0 }, +}; + +static const struct { + unsigned int scale, uscale; /* scale factor as integer + micro */ + u8 gain; /* gain register value */ + u8 res; /* resolution register value */ +} zopt2201_scale_uvb[] = { + { 0, 460800, 0, 5 }, + { 0, 153600, 1, 5 }, + { 0, 76800, 2, 5 }, + { 0, 57600, 0, 4 }, + { 0, 51200, 3, 5 }, + { 0, 28800, 0, 3 }, + { 0, 25600, 4, 5 }, + { 0, 19200, 1, 4 }, + { 0, 14400, 0, 2 }, + { 0, 9600, 2, 4 }, + { 0, 7200, 0, 1 }, + { 0, 6400, 3, 4 }, + { 0, 4800, 2, 3 }, + { 0, 3600, 0, 0 }, + { 0, 3200, 4, 4 }, + { 0, 2400, 2, 2 }, + { 0, 1600, 4, 3 }, + { 0, 1200, 2, 1 }, + { 0, 800, 4, 2 }, + { 0, 600, 2, 0 }, + { 0, 400, 4, 1 }, + { 0, 200, 4, 0 }, +}; + +static int zopt2201_enable_mode(struct zopt2201_data *data, bool uvb_mode) +{ + u8 out = ZOPT2201_MAIN_CTRL_LS_EN; + + if (uvb_mode) + out |= ZOPT2201_MAIN_CTRL_LS_MODE; + + return i2c_smbus_write_byte_data(data->client, ZOPT2201_MAIN_CTRL, out); +} + +static int zopt2201_read(struct zopt2201_data *data, u8 reg) +{ + struct i2c_client *client = data->client; + int tries = 10; + u8 buf[3]; + int ret; + + mutex_lock(&data->lock); + ret = zopt2201_enable_mode(data, reg == ZOPT2201_UVB_DATA); + if (ret < 0) + goto fail; + + while (tries--) { + unsigned long t = zopt2201_resolution[data->res].us; + + if (t <= 20000) + usleep_range(t, t + 1000); + else + msleep(t / 1000); + ret = i2c_smbus_read_byte_data(client, ZOPT2201_MAIN_STATUS); + if (ret < 0) + goto fail; + if (ret & ZOPT2201_MAIN_STATUS_DRDY) + break; + } + + if (tries < 0) { + ret = -ETIMEDOUT; + goto fail; + } + + ret = i2c_smbus_read_i2c_block_data(client, reg, sizeof(buf), buf); + if (ret < 0) + goto fail; + + ret = i2c_smbus_write_byte_data(client, ZOPT2201_MAIN_CTRL, 0x00); + if (ret < 0) + goto fail; + mutex_unlock(&data->lock); + + return (buf[2] << 16) | (buf[1] << 8) | buf[0]; + +fail: + mutex_unlock(&data->lock); + return ret; +} + +static const struct iio_chan_spec zopt2201_channels[] = { + { + .type = IIO_LIGHT, + .address = ZOPT2201_ALS_DATA, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_INT_TIME), + }, + { + .type = IIO_INTENSITY, + .modified = 1, + .channel2 = IIO_MOD_LIGHT_UV, + .address = ZOPT2201_UVB_DATA, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_INT_TIME), + }, + { + .type = IIO_UVINDEX, + .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), + }, +}; + +static int zopt2201_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct zopt2201_data *data = iio_priv(indio_dev); + u64 tmp; + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = zopt2201_read(data, chan->address); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + case IIO_CHAN_INFO_PROCESSED: + ret = zopt2201_read(data, ZOPT2201_UVB_DATA); + if (ret < 0) + return ret; + *val = ret * 18 * + (1 << (20 - zopt2201_resolution[data->res].bits)) / + zopt2201_gain_uvb[data->gain].gain; + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + switch (chan->address) { + case ZOPT2201_ALS_DATA: + *val = zopt2201_gain_als[data->gain].scale; + break; + case ZOPT2201_UVB_DATA: + *val = zopt2201_gain_uvb[data->gain].scale; + break; + default: + return -EINVAL; + } + + *val2 = 1000000; + *val2 *= (1 << (zopt2201_resolution[data->res].bits - 13)); + tmp = div_s64(*val * 1000000ULL, *val2); + *val = div_s64_rem(tmp, 1000000, val2); + + return IIO_VAL_INT_PLUS_MICRO; + case IIO_CHAN_INFO_INT_TIME: + *val = 0; + *val2 = zopt2201_resolution[data->res].us; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } +} + +static int zopt2201_set_resolution(struct zopt2201_data *data, u8 res) +{ + int ret; + + ret = i2c_smbus_write_byte_data(data->client, ZOPT2201_LS_MEAS_RATE, + (res << ZOPT2201_MEAS_RES_SHIFT) | + data->rate); + if (ret < 0) + return ret; + + data->res = res; + + return 0; +} + +static int zopt2201_write_resolution(struct zopt2201_data *data, + int val, int val2) +{ + int i, ret; + + if (val != 0) + return -EINVAL; + + for (i = 0; i < ARRAY_SIZE(zopt2201_resolution); i++) + if (val2 == zopt2201_resolution[i].us) { + mutex_lock(&data->lock); + ret = zopt2201_set_resolution(data, i); + mutex_unlock(&data->lock); + return ret; + } + + return -EINVAL; +} + +static int zopt2201_set_gain(struct zopt2201_data *data, u8 gain) +{ + int ret; + + ret = i2c_smbus_write_byte_data(data->client, ZOPT2201_LS_GAIN, gain); + if (ret < 0) + return ret; + + data->gain = gain; + + return 0; +} + +static int zopt2201_write_scale_als_by_idx(struct zopt2201_data *data, int idx) +{ + int ret; + + mutex_lock(&data->lock); + ret = zopt2201_set_resolution(data, zopt2201_scale_als[idx].res); + if (ret < 0) + goto unlock; + + ret = zopt2201_set_gain(data, zopt2201_scale_als[idx].gain); + +unlock: + mutex_unlock(&data->lock); + return ret; +} + +static int zopt2201_write_scale_als(struct zopt2201_data *data, + int val, int val2) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(zopt2201_scale_als); i++) + if (val == zopt2201_scale_als[i].scale && + val2 == zopt2201_scale_als[i].uscale) { + return zopt2201_write_scale_als_by_idx(data, i); + } + + return -EINVAL; +} + +static int zopt2201_write_scale_uvb_by_idx(struct zopt2201_data *data, int idx) +{ + int ret; + + mutex_lock(&data->lock); + ret = zopt2201_set_resolution(data, zopt2201_scale_als[idx].res); + if (ret < 0) + goto unlock; + + ret = zopt2201_set_gain(data, zopt2201_scale_als[idx].gain); + +unlock: + mutex_unlock(&data->lock); + return ret; +} + +static int zopt2201_write_scale_uvb(struct zopt2201_data *data, + int val, int val2) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(zopt2201_scale_uvb); i++) + if (val == zopt2201_scale_uvb[i].scale && + val2 == zopt2201_scale_uvb[i].uscale) + return zopt2201_write_scale_uvb_by_idx(data, i); + + return -EINVAL; +} + +static int zopt2201_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct zopt2201_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_INT_TIME: + return zopt2201_write_resolution(data, val, val2); + case IIO_CHAN_INFO_SCALE: + switch (chan->address) { + case ZOPT2201_ALS_DATA: + return zopt2201_write_scale_als(data, val, val2); + case ZOPT2201_UVB_DATA: + return zopt2201_write_scale_uvb(data, val, val2); + default: + return -EINVAL; + } + } + + return -EINVAL; +} + +static ssize_t zopt2201_show_int_time_available(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + size_t len = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(zopt2201_resolution); i++) + len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06lu ", + zopt2201_resolution[i].us); + buf[len - 1] = '\n'; + + return len; +} + +static IIO_DEV_ATTR_INT_TIME_AVAIL(zopt2201_show_int_time_available); + +static ssize_t zopt2201_show_als_scale_avail(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + ssize_t len = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(zopt2201_scale_als); i++) + len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06u ", + zopt2201_scale_als[i].scale, + zopt2201_scale_als[i].uscale); + buf[len - 1] = '\n'; + + return len; +} + +static ssize_t zopt2201_show_uvb_scale_avail(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + ssize_t len = 0; + int i; + + for (i = 0; i < ARRAY_SIZE(zopt2201_scale_uvb); i++) + len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06u ", + zopt2201_scale_uvb[i].scale, + zopt2201_scale_uvb[i].uscale); + buf[len - 1] = '\n'; + + return len; +} + +static IIO_DEVICE_ATTR(in_illuminance_scale_available, 0444, + zopt2201_show_als_scale_avail, NULL, 0); +static IIO_DEVICE_ATTR(in_intensity_uv_scale_available, 0444, + zopt2201_show_uvb_scale_avail, NULL, 0); + +static struct attribute *zopt2201_attributes[] = { + &iio_dev_attr_integration_time_available.dev_attr.attr, + &iio_dev_attr_in_illuminance_scale_available.dev_attr.attr, + &iio_dev_attr_in_intensity_uv_scale_available.dev_attr.attr, + NULL +}; + +static const struct attribute_group zopt2201_attribute_group = { + .attrs = zopt2201_attributes, +}; + +static const struct iio_info zopt2201_info = { + .read_raw = zopt2201_read_raw, + .write_raw = zopt2201_write_raw, + .attrs = &zopt2201_attribute_group, +}; + +static int zopt2201_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct zopt2201_data *data; + struct iio_dev *indio_dev; + int ret; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_READ_I2C_BLOCK)) + return -EOPNOTSUPP; + + ret = i2c_smbus_read_byte_data(client, ZOPT2201_PART_ID); + if (ret < 0) + return ret; + if (ret != ZOPT2201_PART_NUMBER) + return -ENODEV; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client = client; + mutex_init(&data->lock); + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &zopt2201_info; + indio_dev->channels = zopt2201_channels; + indio_dev->num_channels = ARRAY_SIZE(zopt2201_channels); + indio_dev->name = ZOPT2201_DRV_NAME; + indio_dev->modes = INDIO_DIRECT_MODE; + + data->rate = ZOPT2201_MEAS_FREQ_100MS; + ret = zopt2201_set_resolution(data, ZOPT2201_MEAS_RES_18BIT); + if (ret < 0) + return ret; + + ret = zopt2201_set_gain(data, ZOPT2201_LS_GAIN_3); + if (ret < 0) + return ret; + + return devm_iio_device_register(&client->dev, indio_dev); +} + +static const struct i2c_device_id zopt2201_id[] = { + { "zopt2201", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, zopt2201_id); + +static struct i2c_driver zopt2201_driver = { + .driver = { + .name = ZOPT2201_DRV_NAME, + }, + .probe = zopt2201_probe, + .id_table = zopt2201_id, +}; + +module_i2c_driver(zopt2201_driver); + +MODULE_AUTHOR("Peter Meerwald-Stadler <pmeerw@pmeerw.net>"); +MODULE_DESCRIPTION("IDT ZOPT2201 ambient light and UV B sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index c09329069d0a..42a827a66512 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -788,6 +788,7 @@ static const struct acpi_device_id ak_acpi_match[] = { {"AK8975", AK8975}, {"AK8963", AK8963}, {"INVN6500", AK8963}, + {"AK009911", AK09911}, {"AK09911", AK09911}, {"AK09912", AK09912}, { }, diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index fd1da26a62e4..5ec3e41b65f2 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -55,6 +55,28 @@ struct bmp180_calib { s16 MD; }; +/* See datasheet Section 4.2.2. */ +struct bmp280_calib { + u16 T1; + s16 T2; + s16 T3; + u16 P1; + s16 P2; + s16 P3; + s16 P4; + s16 P5; + s16 P6; + s16 P7; + s16 P8; + s16 P9; + u8 H1; + s16 H2; + u8 H3; + s16 H4; + s16 H5; + s8 H6; +}; + struct bmp280_data { struct device *dev; struct mutex lock; @@ -62,7 +84,10 @@ struct bmp280_data { struct completion done; bool use_eoc; const struct bmp280_chip_info *chip_info; - struct bmp180_calib calib; + union { + struct bmp180_calib bmp180; + struct bmp280_calib bmp280; + } calib; struct regulator *vddd; struct regulator *vdda; unsigned int start_up_time; /* in microseconds */ @@ -120,67 +145,121 @@ static const struct iio_chan_spec bmp280_channels[] = { }, }; -/* - * Returns humidity in percent, resolution is 0.01 percent. Output value of - * "47445" represents 47445/1024 = 46.333 %RH. - * - * Taken from BME280 datasheet, Section 4.2.3, "Compensation formula". - */ - -static u32 bmp280_compensate_humidity(struct bmp280_data *data, - s32 adc_humidity) +static int bmp280_read_calib(struct bmp280_data *data, + struct bmp280_calib *calib, + unsigned int chip) { + int ret; + unsigned int tmp; struct device *dev = data->dev; - unsigned int H1, H3, tmp; - int H2, H4, H5, H6, ret, var; + __le16 t_buf[BMP280_COMP_TEMP_REG_COUNT / 2]; + __le16 p_buf[BMP280_COMP_PRESS_REG_COUNT / 2]; + + /* Read temperature calibration values. */ + ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_TEMP_START, + t_buf, BMP280_COMP_TEMP_REG_COUNT); + if (ret < 0) { + dev_err(data->dev, + "failed to read temperature calibration parameters\n"); + return ret; + } + + calib->T1 = le16_to_cpu(t_buf[T1]); + calib->T2 = le16_to_cpu(t_buf[T2]); + calib->T3 = le16_to_cpu(t_buf[T3]); - ret = regmap_read(data->regmap, BMP280_REG_COMP_H1, &H1); + /* Read pressure calibration values. */ + ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_PRESS_START, + p_buf, BMP280_COMP_PRESS_REG_COUNT); + if (ret < 0) { + dev_err(data->dev, + "failed to read pressure calibration parameters\n"); + return ret; + } + + calib->P1 = le16_to_cpu(p_buf[P1]); + calib->P2 = le16_to_cpu(p_buf[P2]); + calib->P3 = le16_to_cpu(p_buf[P3]); + calib->P4 = le16_to_cpu(p_buf[P4]); + calib->P5 = le16_to_cpu(p_buf[P5]); + calib->P6 = le16_to_cpu(p_buf[P6]); + calib->P7 = le16_to_cpu(p_buf[P7]); + calib->P8 = le16_to_cpu(p_buf[P8]); + calib->P9 = le16_to_cpu(p_buf[P9]); + + /* + * Read humidity calibration values. + * Due to some odd register addressing we cannot just + * do a big bulk read. Instead, we have to read each Hx + * value separately and sometimes do some bit shifting... + * Humidity data is only available on BME280. + */ + if (chip != BME280_CHIP_ID) + return 0; + + ret = regmap_read(data->regmap, BMP280_REG_COMP_H1, &tmp); if (ret < 0) { dev_err(dev, "failed to read H1 comp value\n"); return ret; } + calib->H1 = tmp; ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H2, &tmp, 2); if (ret < 0) { dev_err(dev, "failed to read H2 comp value\n"); return ret; } - H2 = sign_extend32(le16_to_cpu(tmp), 15); + calib->H2 = sign_extend32(le16_to_cpu(tmp), 15); - ret = regmap_read(data->regmap, BMP280_REG_COMP_H3, &H3); + ret = regmap_read(data->regmap, BMP280_REG_COMP_H3, &tmp); if (ret < 0) { dev_err(dev, "failed to read H3 comp value\n"); return ret; } + calib->H3 = tmp; ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H4, &tmp, 2); if (ret < 0) { dev_err(dev, "failed to read H4 comp value\n"); return ret; } - H4 = sign_extend32(((be16_to_cpu(tmp) >> 4) & 0xff0) | - (be16_to_cpu(tmp) & 0xf), 11); + calib->H4 = sign_extend32(((be16_to_cpu(tmp) >> 4) & 0xff0) | + (be16_to_cpu(tmp) & 0xf), 11); ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H5, &tmp, 2); if (ret < 0) { dev_err(dev, "failed to read H5 comp value\n"); return ret; } - H5 = sign_extend32(((le16_to_cpu(tmp) >> 4) & 0xfff), 11); + calib->H5 = sign_extend32(((le16_to_cpu(tmp) >> 4) & 0xfff), 11); ret = regmap_read(data->regmap, BMP280_REG_COMP_H6, &tmp); if (ret < 0) { dev_err(dev, "failed to read H6 comp value\n"); return ret; } - H6 = sign_extend32(tmp, 7); + calib->H6 = sign_extend32(tmp, 7); + + return 0; +} +/* + * Returns humidity in percent, resolution is 0.01 percent. Output value of + * "47445" represents 47445/1024 = 46.333 %RH. + * + * Taken from BME280 datasheet, Section 4.2.3, "Compensation formula". + */ +static u32 bmp280_compensate_humidity(struct bmp280_data *data, + s32 adc_humidity) +{ + s32 var; + struct bmp280_calib *calib = &data->calib.bmp280; var = ((s32)data->t_fine) - (s32)76800; - var = ((((adc_humidity << 14) - (H4 << 20) - (H5 * var)) - + (s32)16384) >> 15) * (((((((var * H6) >> 10) - * (((var * (s32)H3) >> 11) + (s32)32768)) >> 10) - + (s32)2097152) * H2 + 8192) >> 14); - var -= ((((var >> 15) * (var >> 15)) >> 7) * (s32)H1) >> 4; + var = ((((adc_humidity << 14) - (calib->H4 << 20) - (calib->H5 * var)) + + (s32)16384) >> 15) * (((((((var * calib->H6) >> 10) + * (((var * (s32)calib->H3) >> 11) + (s32)32768)) >> 10) + + (s32)2097152) * calib->H2 + 8192) >> 14); + var -= ((((var >> 15) * (var >> 15)) >> 7) * (s32)calib->H1) >> 4; return var >> 12; }; @@ -195,31 +274,14 @@ static u32 bmp280_compensate_humidity(struct bmp280_data *data, static s32 bmp280_compensate_temp(struct bmp280_data *data, s32 adc_temp) { - int ret; s32 var1, var2; - __le16 buf[BMP280_COMP_TEMP_REG_COUNT / 2]; + struct bmp280_calib *calib = &data->calib.bmp280; - ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_TEMP_START, - buf, BMP280_COMP_TEMP_REG_COUNT); - if (ret < 0) { - dev_err(data->dev, - "failed to read temperature calibration parameters\n"); - return ret; - } - - /* - * The double casts are necessary because le16_to_cpu returns an - * unsigned 16-bit value. Casting that value directly to a - * signed 32-bit will not do proper sign extension. - * - * Conversely, T1 and P1 are unsigned values, so they can be - * cast straight to the larger type. - */ - var1 = (((adc_temp >> 3) - ((s32)le16_to_cpu(buf[T1]) << 1)) * - ((s32)(s16)le16_to_cpu(buf[T2]))) >> 11; - var2 = (((((adc_temp >> 4) - ((s32)le16_to_cpu(buf[T1]))) * - ((adc_temp >> 4) - ((s32)le16_to_cpu(buf[T1])))) >> 12) * - ((s32)(s16)le16_to_cpu(buf[T3]))) >> 14; + var1 = (((adc_temp >> 3) - ((s32)calib->T1 << 1)) * + ((s32)calib->T2)) >> 11; + var2 = (((((adc_temp >> 4) - ((s32)calib->T1)) * + ((adc_temp >> 4) - ((s32)calib->T1))) >> 12) * + ((s32)calib->T3)) >> 14; data->t_fine = var1 + var2; return (data->t_fine * 5 + 128) >> 8; @@ -235,34 +297,25 @@ static s32 bmp280_compensate_temp(struct bmp280_data *data, static u32 bmp280_compensate_press(struct bmp280_data *data, s32 adc_press) { - int ret; s64 var1, var2, p; - __le16 buf[BMP280_COMP_PRESS_REG_COUNT / 2]; - - ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_PRESS_START, - buf, BMP280_COMP_PRESS_REG_COUNT); - if (ret < 0) { - dev_err(data->dev, - "failed to read pressure calibration parameters\n"); - return ret; - } + struct bmp280_calib *calib = &data->calib.bmp280; var1 = ((s64)data->t_fine) - 128000; - var2 = var1 * var1 * (s64)(s16)le16_to_cpu(buf[P6]); - var2 += (var1 * (s64)(s16)le16_to_cpu(buf[P5])) << 17; - var2 += ((s64)(s16)le16_to_cpu(buf[P4])) << 35; - var1 = ((var1 * var1 * (s64)(s16)le16_to_cpu(buf[P3])) >> 8) + - ((var1 * (s64)(s16)le16_to_cpu(buf[P2])) << 12); - var1 = ((((s64)1) << 47) + var1) * ((s64)le16_to_cpu(buf[P1])) >> 33; + var2 = var1 * var1 * (s64)calib->P6; + var2 += (var1 * (s64)calib->P5) << 17; + var2 += ((s64)calib->P4) << 35; + var1 = ((var1 * var1 * (s64)calib->P3) >> 8) + + ((var1 * (s64)calib->P2) << 12); + var1 = ((((s64)1) << 47) + var1) * ((s64)calib->P1) >> 33; if (var1 == 0) return 0; p = ((((s64)1048576 - adc_press) << 31) - var2) * 3125; p = div64_s64(p, var1); - var1 = (((s64)(s16)le16_to_cpu(buf[P9])) * (p >> 13) * (p >> 13)) >> 25; - var2 = (((s64)(s16)le16_to_cpu(buf[P8])) * p) >> 19; - p = ((p + var1 + var2) >> 8) + (((s64)(s16)le16_to_cpu(buf[P7])) << 4); + var1 = (((s64)calib->P9) * (p >> 13) * (p >> 13)) >> 25; + var2 = ((s64)(calib->P8) * p) >> 19; + p = ((p + var1 + var2) >> 8) + (((s64)calib->P7) << 4); return (u32)p; } @@ -752,7 +805,7 @@ static int bmp180_read_calib(struct bmp280_data *data, static s32 bmp180_compensate_temp(struct bmp280_data *data, s32 adc_temp) { s32 x1, x2; - struct bmp180_calib *calib = &data->calib; + struct bmp180_calib *calib = &data->calib.bmp180; x1 = ((adc_temp - calib->AC6) * calib->AC5) >> 15; x2 = (calib->MC << 11) / (x1 + calib->MD); @@ -814,7 +867,7 @@ static u32 bmp180_compensate_press(struct bmp280_data *data, s32 adc_press) s32 b3, b6; u32 b4, b7; s32 oss = data->oversampling_press; - struct bmp180_calib *calib = &data->calib; + struct bmp180_calib *calib = &data->calib.bmp180; b6 = data->t_fine - 4000; x1 = (calib->B2 * (b6 * b6 >> 12)) >> 11; @@ -1028,11 +1081,19 @@ int bmp280_common_probe(struct device *dev, dev_set_drvdata(dev, indio_dev); /* - * The BMP085 and BMP180 has calibration in an E2PROM, read it out - * at probe time. It will not change. + * Some chips have calibration parameters "programmed into the devices' + * non-volatile memory during production". Let's read them out at probe + * time once. They will not change. */ if (chip_id == BMP180_CHIP_ID) { - ret = bmp180_read_calib(data, &data->calib); + ret = bmp180_read_calib(data, &data->calib.bmp180); + if (ret < 0) { + dev_err(data->dev, + "failed to read calibration coefficients\n"); + goto out_disable_vdda; + } + } else if (chip_id == BMP280_CHIP_ID || chip_id == BME280_CHIP_ID) { + ret = bmp280_read_calib(data, &data->calib.bmp280, chip_id); if (ret < 0) { dev_err(data->dev, "failed to read calibration coefficients\n"); diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c index df23dbcc030a..b8a2c2c8cac5 100644 --- a/drivers/iio/proximity/sx9500.c +++ b/drivers/iio/proximity/sx9500.c @@ -1031,6 +1031,7 @@ static const struct dev_pm_ops sx9500_pm_ops = { static const struct acpi_device_id sx9500_acpi_match[] = { {"SSX9500", 0}, + {"SASX9500", 0}, { }, }; MODULE_DEVICE_TABLE(acpi, sx9500_acpi_match); diff --git a/drivers/iio/trigger/stm32-lptimer-trigger.c b/drivers/iio/trigger/stm32-lptimer-trigger.c index de361d879929..98cdc7e47f3d 100644 --- a/drivers/iio/trigger/stm32-lptimer-trigger.c +++ b/drivers/iio/trigger/stm32-lptimer-trigger.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * STM32 Low-Power Timer Trigger driver * @@ -5,8 +6,6 @@ * * Author: Fabrice Gasnier <fabrice.gasnier@st.com>. * - * License terms: GNU General Public License (GPL), version 2 - * * Inspired by Benjamin Gaignard's stm32-timer-trigger driver */ diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c index b542dc484969..ccf1ce653b25 100644 --- a/drivers/iio/trigger/stm32-timer-trigger.c +++ b/drivers/iio/trigger/stm32-timer-trigger.c @@ -1,9 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) STMicroelectronics 2016 * * Author: Benjamin Gaignard <benjamin.gaignard@st.com> * - * License terms: GNU General Public License (GPL), version 2 */ #include <linux/iio/iio.h> diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index 554683912cff..e95ab683331e 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -26,6 +26,10 @@ if STAGING source "drivers/staging/irda/net/Kconfig" +source "drivers/staging/ipx/Kconfig" + +source "drivers/staging/ncpfs/Kconfig" + source "drivers/staging/wlan-ng/Kconfig" source "drivers/staging/comedi/Kconfig" diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile index 6e536020029a..af8cd6a3a1f6 100644 --- a/drivers/staging/Makefile +++ b/drivers/staging/Makefile @@ -3,6 +3,8 @@ obj-y += media/ obj-y += typec/ +obj-$(CONFIG_IPX) += ipx/ +obj-$(CONFIG_NCP_FS) += ncpfs/ obj-$(CONFIG_IRDA) += irda/net/ obj-$(CONFIG_IRDA) += irda/drivers/ obj-$(CONFIG_PRISM2_USB) += wlan-ng/ diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c index 372ce9913e6d..bbdc53b686dd 100644 --- a/drivers/staging/android/ashmem.c +++ b/drivers/staging/android/ashmem.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* mm/ashmem.c * * Anonymous Shared Memory Subsystem, ashmem @@ -5,15 +6,6 @@ * Copyright (C) 2008 Google, Inc. * * Robert Love <rlove@google.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #define pr_fmt(fmt) "ashmem: " fmt @@ -818,7 +810,23 @@ static long compat_ashmem_ioctl(struct file *file, unsigned int cmd, return ashmem_ioctl(file, cmd, arg); } #endif +#ifdef CONFIG_PROC_FS +static void ashmem_show_fdinfo(struct seq_file *m, struct file *file) +{ + struct ashmem_area *asma = file->private_data; + + mutex_lock(&ashmem_mutex); + + if (asma->file) + seq_printf(m, "inode:\t%ld\n", file_inode(asma->file)->i_ino); + + if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0') + seq_printf(m, "name:\t%s\n", + asma->name + ASHMEM_NAME_PREFIX_LEN); + mutex_unlock(&ashmem_mutex); +} +#endif static const struct file_operations ashmem_fops = { .owner = THIS_MODULE, .open = ashmem_open, @@ -830,6 +838,9 @@ static const struct file_operations ashmem_fops = { #ifdef CONFIG_COMPAT .compat_ioctl = compat_ashmem_ioctl, #endif +#ifdef CONFIG_PROC_FS + .show_fdinfo = ashmem_show_fdinfo, +#endif }; static struct miscdevice ashmem_misc = { @@ -864,12 +875,18 @@ static int __init ashmem_init(void) goto out_free2; } - register_shrinker(&ashmem_shrinker); + ret = register_shrinker(&ashmem_shrinker); + if (ret) { + pr_err("failed to register shrinker!\n"); + goto out_demisc; + } pr_info("initialized\n"); return 0; +out_demisc: + misc_deregister(&ashmem_misc); out_free2: kmem_cache_destroy(ashmem_range_cachep); out_free1: diff --git a/drivers/staging/android/ashmem.h b/drivers/staging/android/ashmem.h index 5abcfd7aa706..60d7208f110a 100644 --- a/drivers/staging/android/ashmem.h +++ b/drivers/staging/android/ashmem.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0) /* * include/linux/ashmem.h * diff --git a/drivers/staging/android/ion/ion-ioctl.c b/drivers/staging/android/ion/ion-ioctl.c index c78989351f9c..a8d3cc412fb9 100644 --- a/drivers/staging/android/ion/ion-ioctl.c +++ b/drivers/staging/android/ion/ion-ioctl.c @@ -1,16 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/kernel.h> @@ -70,8 +60,10 @@ long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) return -EFAULT; ret = validate_ioctl_arg(cmd, &data); - if (WARN_ON_ONCE(ret)) + if (ret) { + pr_warn_once("%s: ioctl validate failed\n", __func__); return ret; + } if (!(dir & _IOC_WRITE)) memset(&data, 0, sizeof(data)); diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c index f480885e346b..57e0d8035b2e 100644 --- a/drivers/staging/android/ion/ion.c +++ b/drivers/staging/android/ion/ion.c @@ -1,42 +1,32 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * * drivers/staging/android/ion/ion.c * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ +#include <linux/anon_inodes.h> +#include <linux/debugfs.h> #include <linux/device.h> +#include <linux/dma-buf.h> #include <linux/err.h> +#include <linux/export.h> #include <linux/file.h> #include <linux/freezer.h> #include <linux/fs.h> -#include <linux/anon_inodes.h> +#include <linux/idr.h> #include <linux/kthread.h> #include <linux/list.h> #include <linux/memblock.h> #include <linux/miscdevice.h> -#include <linux/export.h> #include <linux/mm.h> #include <linux/mm_types.h> #include <linux/rbtree.h> -#include <linux/slab.h> +#include <linux/sched/task.h> #include <linux/seq_file.h> +#include <linux/slab.h> #include <linux/uaccess.h> #include <linux/vmalloc.h> -#include <linux/debugfs.h> -#include <linux/dma-buf.h> -#include <linux/idr.h> -#include <linux/sched/task.h> #include "ion.h" @@ -539,6 +529,7 @@ void ion_device_add_heap(struct ion_heap *heap) { struct dentry *debug_file; struct ion_device *dev = internal_dev; + int ret; if (!heap->ops->allocate || !heap->ops->free) pr_err("%s: can not add heap with invalid ops struct.\n", @@ -550,8 +541,11 @@ void ion_device_add_heap(struct ion_heap *heap) if (heap->flags & ION_HEAP_FLAG_DEFER_FREE) ion_heap_init_deferred_free(heap); - if ((heap->flags & ION_HEAP_FLAG_DEFER_FREE) || heap->ops->shrink) - ion_heap_init_shrinker(heap); + if ((heap->flags & ION_HEAP_FLAG_DEFER_FREE) || heap->ops->shrink) { + ret = ion_heap_init_shrinker(heap); + if (ret) + pr_err("%s: Failed to register shrinker\n", __func__); + } heap->dev = dev; down_write(&dev->lock); @@ -567,9 +561,9 @@ void ion_device_add_heap(struct ion_heap *heap) char debug_name[64]; snprintf(debug_name, 64, "%s_shrink", heap->name); - debug_file = debugfs_create_file( - debug_name, 0644, dev->debug_root, heap, - &debug_shrink_fops); + debug_file = debugfs_create_file(debug_name, + 0644, dev->debug_root, heap, + &debug_shrink_fops); if (!debug_file) { char buf[256], *path; diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h index f5f9cd63f8e9..a238f23c9116 100644 --- a/drivers/staging/android/ion/ion.h +++ b/drivers/staging/android/ion/ion.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion.h * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _ION_H @@ -189,7 +180,8 @@ struct ion_heap { wait_queue_head_t waitqueue; struct task_struct *task; - int (*debug_show)(struct ion_heap *heap, struct seq_file *, void *); + int (*debug_show)(struct ion_heap *heap, struct seq_file *s, + void *unused); }; /** @@ -238,7 +230,7 @@ int ion_alloc(size_t len, * this function will be called to setup a shrinker to shrink the freelists * and call the heap's shrink op. */ -void ion_heap_init_shrinker(struct ion_heap *heap); +int ion_heap_init_shrinker(struct ion_heap *heap); /** * ion_heap_init_deferred_free -- initialize deferred free functionality diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c index fee7650d6fbb..e129237a0417 100644 --- a/drivers/staging/android/ion/ion_carveout_heap.c +++ b/drivers/staging/android/ion/ion_carveout_heap.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion_carveout_heap.c * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/spinlock.h> #include <linux/dma-mapping.h> diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c index 102c09398317..159d72f5bc42 100644 --- a/drivers/staging/android/ion/ion_chunk_heap.c +++ b/drivers/staging/android/ion/ion_chunk_heap.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion_chunk_heap.c * * Copyright (C) 2012 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/dma-mapping.h> #include <linux/err.h> diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c index 86196ffd2faf..94e06925c712 100644 --- a/drivers/staging/android/ion/ion_cma_heap.c +++ b/drivers/staging/android/ion/ion_cma_heap.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion_cma_heap.c * * Copyright (C) Linaro 2012 * Author: <benjamin.gaignard@linaro.org> for ST-Ericsson. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/device.h> diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c index 91faa7f035b9..772dad65396e 100644 --- a/drivers/staging/android/ion/ion_heap.c +++ b/drivers/staging/android/ion/ion_heap.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion_heap.c * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/err.h> @@ -306,11 +297,12 @@ static unsigned long ion_heap_shrink_scan(struct shrinker *shrinker, return freed; } -void ion_heap_init_shrinker(struct ion_heap *heap) +int ion_heap_init_shrinker(struct ion_heap *heap) { heap->shrinker.count_objects = ion_heap_shrink_count; heap->shrinker.scan_objects = ion_heap_shrink_scan; heap->shrinker.seeks = DEFAULT_SEEKS; heap->shrinker.batch = 0; - register_shrinker(&heap->shrinker); + + return register_shrinker(&heap->shrinker); } diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c index 817849df9de3..b3017f12835f 100644 --- a/drivers/staging/android/ion/ion_page_pool.c +++ b/drivers/staging/android/ion/ion_page_pool.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion_mem_pool.c * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <linux/debugfs.h> diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c index 4dc5d7a589c2..bc19cdd30637 100644 --- a/drivers/staging/android/ion/ion_system_heap.c +++ b/drivers/staging/android/ion/ion_system_heap.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/ion/ion_system_heap.c * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #include <asm/page.h> @@ -371,7 +362,7 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap, unsigned long i; int ret; - page = alloc_pages(low_order_gfp_flags, order); + page = alloc_pages(low_order_gfp_flags | __GFP_NOWARN, order); if (!page) return -ENOMEM; diff --git a/drivers/staging/android/uapi/ashmem.h b/drivers/staging/android/uapi/ashmem.h index 13df42d200b7..5b531af6820e 100644 --- a/drivers/staging/android/uapi/ashmem.h +++ b/drivers/staging/android/uapi/ashmem.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0) /* * drivers/staging/android/uapi/ashmem.h * diff --git a/drivers/staging/android/uapi/ion.h b/drivers/staging/android/uapi/ion.h index 9e21451149d0..825d3e95ccd3 100644 --- a/drivers/staging/android/uapi/ion.h +++ b/drivers/staging/android/uapi/ion.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/staging/android/uapi/ion.h * * Copyright (C) 2011 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * */ #ifndef _UAPI_LINUX_ION_H diff --git a/drivers/staging/ccree/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt b/drivers/staging/ccree/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt deleted file mode 100644 index 2ea65175c032..000000000000 --- a/drivers/staging/ccree/Documentation/devicetree/bindings/crypto/arm-cryptocell.txt +++ /dev/null @@ -1,27 +0,0 @@ -Arm TrustZone CryptoCell cryptographic accelerators - -Required properties: -- compatible: must be "arm,cryptocell-712-ree". -- reg: shall contain base register location and length. - Typically length is 0x10000. -- interrupts: shall contain the interrupt for the device. - -Optional properties: -- interrupt-parent: can designate the interrupt controller the - device interrupt is connected to, if needed. -- clocks: may contain the clock handling the device, if needed. -- power-domains: may contain a reference to the PM domain, if applicable. - - -Examples: - -Zynq FPGA device ----------------- - - arm_cc7x: arm_cc7x@80000000 { - compatible = "arm,cryptocell-712-ree"; - interrupt-parent = <&intc>; - interrupts = < 0 30 4 >; - reg = < 0x80000000 0x10000 >; - }; - diff --git a/drivers/staging/ccree/Kconfig b/drivers/staging/ccree/Kconfig index 0b3092ba2fcb..c94dfe8adb63 100644 --- a/drivers/staging/ccree/Kconfig +++ b/drivers/staging/ccree/Kconfig @@ -1,3 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 + config CRYPTO_DEV_CCREE tristate "Support for ARM TrustZone CryptoCell C7XX family of Crypto accelerators" depends on CRYPTO && CRYPTO_HW && OF && HAS_DMA diff --git a/drivers/staging/ccree/Makefile b/drivers/staging/ccree/Makefile index ae702f3b5369..bdc27970f95f 100644 --- a/drivers/staging/ccree/Makefile +++ b/drivers/staging/ccree/Makefile @@ -1,3 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0 + obj-$(CONFIG_CRYPTO_DEV_CCREE) := ccree.o -ccree-y := ssi_driver.o ssi_sysfs.o ssi_buffer_mgr.o ssi_request_mgr.o ssi_cipher.o ssi_hash.o ssi_aead.o ssi_ivgen.o ssi_sram_mgr.o ssi_pm.o -ccree-$(CONFIG_CRYPTO_FIPS) += ssi_fips.o +ccree-y := cc_driver.o cc_buffer_mgr.o cc_request_mgr.o cc_cipher.o cc_hash.o cc_aead.o cc_ivgen.o cc_sram_mgr.o +ccree-$(CONFIG_CRYPTO_FIPS) += cc_fips.o +ccree-$(CONFIG_DEBUG_FS) += cc_debugfs.o +ccree-$(CONFIG_PM) += cc_pm.o diff --git a/drivers/staging/ccree/TODO b/drivers/staging/ccree/TODO index c9f5754d062d..b8e163d98f91 100644 --- a/drivers/staging/ccree/TODO +++ b/drivers/staging/ccree/TODO @@ -6,25 +6,5 @@ * * ************************************************************************* -ccree specific items -a.k.a stuff fixing for this driver to move out of staging -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +1. ??? -1. Move to using Crypto Engine to handle backlog queueing. -2. Remove synchronous algorithm support leftovers. -3. Separate platform specific code for FIPS and power management into separate platform modules. -4. Drop legacy kernel support code. -5. Move most (all?) #ifdef CONFIG into inline functions. -6. Remove all unused definitions. -7. Re-factor to accomediate newer/older HW revisions besides the 712. -8. Handle the many checkpatch errors. -9. Implement ahash import/export correctly. -10. Go through a proper review of DT bindings and sysfs ABI -11. Sort out FIPS mode: bake tests into testmgr, sort out behaviour on error, - figure if 3DES weak key check is needed - -Kernel infrastructure items -a.k.a stuff we either neither need to fix in the kernel or understand what we're doing wrong -~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -1. ahash import/export context has a PAGE_SIZE/8 size limit. We need more. -2. Crypto Engine seems to be built for HW with hardware queue depth of 1, we have 600++. diff --git a/drivers/staging/ccree/ssi_aead.c b/drivers/staging/ccree/cc_aead.c index ba0954e4d2e5..b58413172231 100644 --- a/drivers/staging/ccree/ssi_aead.c +++ b/drivers/staging/ccree/cc_aead.c @@ -1,41 +1,19 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/platform_device.h> #include <crypto/algapi.h> -#include <crypto/internal/skcipher.h> -#include <crypto/internal/hash.h> #include <crypto/internal/aead.h> -#include <crypto/sha.h> -#include <crypto/ctr.h> #include <crypto/authenc.h> -#include <crypto/aes.h> #include <crypto/des.h> #include <linux/rtnetlink.h> -#include <linux/version.h> -#include "ssi_config.h" -#include "ssi_driver.h" -#include "ssi_buffer_mgr.h" -#include "ssi_aead.h" -#include "ssi_request_mgr.h" -#include "ssi_hash.h" -#include "ssi_sysfs.h" -#include "ssi_sram_mgr.h" +#include "cc_driver.h" +#include "cc_buffer_mgr.h" +#include "cc_aead.h" +#include "cc_request_mgr.h" +#include "cc_hash.h" +#include "cc_sram_mgr.h" #define template_aead template_u.aead @@ -51,8 +29,8 @@ /* Value of each ICV_CMP byte (of 8) in case of success */ #define ICV_VERIF_OK 0x01 -struct ssi_aead_handle { - ssi_sram_addr_t sram_workspace_addr; +struct cc_aead_handle { + cc_sram_addr_t sram_workspace_addr; struct list_head aead_list; }; @@ -68,8 +46,8 @@ struct cc_xcbc_s { dma_addr_t xcbc_keys_dma_addr; }; -struct ssi_aead_ctx { - struct ssi_drvdata *drvdata; +struct cc_aead_ctx { + struct cc_drvdata *drvdata; u8 ctr_nonce[MAX_NONCE_SIZE]; /* used for ctr3686 iv and aes ccm */ u8 *enckey; dma_addr_t enckey_dma_addr; @@ -90,9 +68,9 @@ static inline bool valid_assoclen(struct aead_request *req) return ((req->assoclen == 16) || (req->assoclen == 20)); } -static void ssi_aead_exit(struct crypto_aead *tfm) +static void cc_aead_exit(struct crypto_aead *tfm) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "Clearing context @%p for %s\n", crypto_aead_ctx(tfm), @@ -100,7 +78,8 @@ static void ssi_aead_exit(struct crypto_aead *tfm) /* Unmap enckey buffer */ if (ctx->enckey) { - dma_free_coherent(dev, AES_MAX_KEY_SIZE, ctx->enckey, ctx->enckey_dma_addr); + dma_free_coherent(dev, AES_MAX_KEY_SIZE, ctx->enckey, + ctx->enckey_dma_addr); dev_dbg(dev, "Freed enckey DMA buffer enckey_dma_addr=%pad\n", &ctx->enckey_dma_addr); ctx->enckey_dma_addr = 0; @@ -143,22 +122,22 @@ static void ssi_aead_exit(struct crypto_aead *tfm) } } -static int ssi_aead_init(struct crypto_aead *tfm) +static int cc_aead_init(struct crypto_aead *tfm) { struct aead_alg *alg = crypto_aead_alg(tfm); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); - struct ssi_crypto_alg *ssi_alg = - container_of(alg, struct ssi_crypto_alg, aead_alg); - struct device *dev = drvdata_to_dev(ssi_alg->drvdata); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_crypto_alg *cc_alg = + container_of(alg, struct cc_crypto_alg, aead_alg); + struct device *dev = drvdata_to_dev(cc_alg->drvdata); dev_dbg(dev, "Initializing context @%p for %s\n", ctx, crypto_tfm_alg_name(&tfm->base)); /* Initialize modes in instance */ - ctx->cipher_mode = ssi_alg->cipher_mode; - ctx->flow_mode = ssi_alg->flow_mode; - ctx->auth_mode = ssi_alg->auth_mode; - ctx->drvdata = ssi_alg->drvdata; + ctx->cipher_mode = cc_alg->cipher_mode; + ctx->flow_mode = cc_alg->flow_mode; + ctx->auth_mode = cc_alg->auth_mode; + ctx->drvdata = cc_alg->drvdata; crypto_aead_set_reqsize(tfm, sizeof(struct aead_req_ctx)); /* Allocate key buffer, cache line aligned */ @@ -221,23 +200,25 @@ static int ssi_aead_init(struct crypto_aead *tfm) return 0; init_failed: - ssi_aead_exit(tfm); + cc_aead_exit(tfm); return -ENOMEM; } -static void ssi_aead_complete(struct device *dev, void *ssi_req, void __iomem *cc_base) +static void cc_aead_complete(struct device *dev, void *cc_req, int err) { - struct aead_request *areq = (struct aead_request *)ssi_req; + struct aead_request *areq = (struct aead_request *)cc_req; struct aead_req_ctx *areq_ctx = aead_request_ctx(areq); - struct crypto_aead *tfm = crypto_aead_reqtfm(ssi_req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); - int err = 0; + struct crypto_aead *tfm = crypto_aead_reqtfm(cc_req); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); - ssi_buffer_mgr_unmap_aead_request(dev, areq); + cc_unmap_aead_request(dev, areq); /* Restore ordinary iv pointer */ areq->iv = areq_ctx->backup_iv; + if (err) + goto done; + if (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) { if (memcmp(areq_ctx->mac_buf, areq_ctx->icv_virt_addr, ctx->authsize) != 0) { @@ -246,36 +227,43 @@ static void ssi_aead_complete(struct device *dev, void *ssi_req, void __iomem *c /* In case of payload authentication failure, MUST NOT * revealed the decrypted message --> zero its memory. */ - ssi_buffer_mgr_zero_sgl(areq->dst, areq_ctx->cryptlen); + cc_zero_sgl(areq->dst, areq_ctx->cryptlen); err = -EBADMSG; } } else { /*ENCRYPT*/ - if (unlikely(areq_ctx->is_icv_fragmented)) - ssi_buffer_mgr_copy_scatterlist_portion( - dev, areq_ctx->mac_buf, areq_ctx->dst_sgl, - areq->cryptlen + areq_ctx->dst_offset, - (areq->cryptlen + areq_ctx->dst_offset + - ctx->authsize), - SSI_SG_FROM_BUF); - - /* If an IV was generated, copy it back to the user provided buffer. */ + if (areq_ctx->is_icv_fragmented) { + u32 skip = areq->cryptlen + areq_ctx->dst_offset; + + cc_copy_sg_portion(dev, areq_ctx->mac_buf, + areq_ctx->dst_sgl, skip, + (skip + ctx->authsize), + CC_SG_FROM_BUF); + } + + /* If an IV was generated, copy it back to the user provided + * buffer. + */ if (areq_ctx->backup_giv) { if (ctx->cipher_mode == DRV_CIPHER_CTR) - memcpy(areq_ctx->backup_giv, areq_ctx->ctr_iv + CTR_RFC3686_NONCE_SIZE, CTR_RFC3686_IV_SIZE); + memcpy(areq_ctx->backup_giv, areq_ctx->ctr_iv + + CTR_RFC3686_NONCE_SIZE, + CTR_RFC3686_IV_SIZE); else if (ctx->cipher_mode == DRV_CIPHER_CCM) - memcpy(areq_ctx->backup_giv, areq_ctx->ctr_iv + CCM_BLOCK_IV_OFFSET, CCM_BLOCK_IV_SIZE); + memcpy(areq_ctx->backup_giv, areq_ctx->ctr_iv + + CCM_BLOCK_IV_OFFSET, CCM_BLOCK_IV_SIZE); } } - +done: aead_request_complete(areq, err); } -static int xcbc_setkey(struct cc_hw_desc *desc, struct ssi_aead_ctx *ctx) +static int xcbc_setkey(struct cc_hw_desc *desc, struct cc_aead_ctx *ctx) { /* Load the AES key */ hw_desc_init(&desc[0]); - /* We are using for the source/user key the same buffer as for the output keys, - * because after this key loading it is not needed anymore + /* We are using for the source/user key the same buffer + * as for the output keys, * because after this key loading it + * is not needed anymore */ set_din_type(&desc[0], DMA_DLLI, ctx->auth_state.xcbc.xcbc_keys_dma_addr, ctx->auth_keylen, @@ -309,7 +297,7 @@ static int xcbc_setkey(struct cc_hw_desc *desc, struct ssi_aead_ctx *ctx) return 4; } -static int hmac_setkey(struct cc_hw_desc *desc, struct ssi_aead_ctx *ctx) +static int hmac_setkey(struct cc_hw_desc *desc, struct cc_aead_ctx *ctx) { unsigned int hmac_pad_const[2] = { HMAC_IPAD_CONST, HMAC_OPAD_CONST }; unsigned int digest_ofs = 0; @@ -328,8 +316,8 @@ static int hmac_setkey(struct cc_hw_desc *desc, struct ssi_aead_ctx *ctx) hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], hash_mode); set_din_sram(&desc[idx], - ssi_ahash_get_larval_digest_sram_addr( - ctx->drvdata, ctx->auth_mode), + cc_larval_digest_addr(ctx->drvdata, + ctx->auth_mode), digest_size); set_flow_mode(&desc[idx], S_DIN_to_HASH); set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); @@ -378,7 +366,7 @@ static int hmac_setkey(struct cc_hw_desc *desc, struct ssi_aead_ctx *ctx) return idx; } -static int validate_keys_sizes(struct ssi_aead_ctx *ctx) +static int validate_keys_sizes(struct cc_aead_ctx *ctx) { struct device *dev = drvdata_to_dev(ctx->drvdata); @@ -390,9 +378,9 @@ static int validate_keys_sizes(struct ssi_aead_ctx *ctx) case DRV_HASH_SHA256: break; case DRV_HASH_XCBC_MAC: - if ((ctx->auth_keylen != AES_KEYSIZE_128) && - (ctx->auth_keylen != AES_KEYSIZE_192) && - (ctx->auth_keylen != AES_KEYSIZE_256)) + if (ctx->auth_keylen != AES_KEYSIZE_128 && + ctx->auth_keylen != AES_KEYSIZE_192 && + ctx->auth_keylen != AES_KEYSIZE_256) return -ENOTSUPP; break; case DRV_HASH_NULL: /* Not authenc (e.g., CCM) - no auth_key) */ @@ -404,16 +392,16 @@ static int validate_keys_sizes(struct ssi_aead_ctx *ctx) return -EINVAL; } /* Check cipher key size */ - if (unlikely(ctx->flow_mode == S_DIN_to_DES)) { + if (ctx->flow_mode == S_DIN_to_DES) { if (ctx->enc_keylen != DES3_EDE_KEY_SIZE) { dev_err(dev, "Invalid cipher(3DES) key size: %u\n", ctx->enc_keylen); return -EINVAL; } } else { /* Default assumed to be AES ciphers */ - if ((ctx->enc_keylen != AES_KEYSIZE_128) && - (ctx->enc_keylen != AES_KEYSIZE_192) && - (ctx->enc_keylen != AES_KEYSIZE_256)) { + if (ctx->enc_keylen != AES_KEYSIZE_128 && + ctx->enc_keylen != AES_KEYSIZE_192 && + ctx->enc_keylen != AES_KEYSIZE_256) { dev_err(dev, "Invalid cipher(AES) key size: %u\n", ctx->enc_keylen); return -EINVAL; @@ -427,14 +415,14 @@ static int validate_keys_sizes(struct ssi_aead_ctx *ctx) * (copy to intenral buffer or hash in case of key longer than block */ static int -ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) +cc_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen) { dma_addr_t key_dma_addr = 0; - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - u32 larval_addr = ssi_ahash_get_larval_digest_sram_addr( - ctx->drvdata, ctx->auth_mode); - struct ssi_crypto_req ssi_req = {}; + u32 larval_addr = cc_larval_digest_addr(ctx->drvdata, ctx->auth_mode); + struct cc_crypto_req cc_req = {}; unsigned int blocksize; unsigned int digestsize; unsigned int hashmode; @@ -457,9 +445,10 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, unsigned int keyl hashmode = DRV_HASH_HW_SHA256; } - if (likely(keylen != 0)) { - key_dma_addr = dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, key_dma_addr))) { + if (keylen != 0) { + key_dma_addr = dma_map_single(dev, (void *)key, keylen, + DMA_TO_DEVICE); + if (dma_mapping_error(dev, key_dma_addr)) { dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n", key, keylen); return -ENOMEM; @@ -537,22 +526,22 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, unsigned int keyl idx++; } - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); - if (unlikely(rc != 0)) + rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx); + if (rc) dev_err(dev, "send_request() failed (rc=%d)\n", rc); - if (likely(key_dma_addr != 0)) + if (key_dma_addr) dma_unmap_single(dev, key_dma_addr, keylen, DMA_TO_DEVICE); return rc; } static int -ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) +cc_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct rtattr *rta = (struct rtattr *)key; - struct ssi_crypto_req ssi_req = {}; + struct cc_crypto_req cc_req = {}; struct crypto_authenc_key_param *param; struct cc_hw_desc desc[MAX_AEAD_SETKEY_SEQ]; int seq_len = 0, rc = -EINVAL; @@ -586,8 +575,9 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) /* Copy nonce from last 4 bytes in CTR key to * first 4 bytes in CTR IV */ - memcpy(ctx->ctr_nonce, key + ctx->auth_keylen + ctx->enc_keylen - - CTR_RFC3686_NONCE_SIZE, CTR_RFC3686_NONCE_SIZE); + memcpy(ctx->ctr_nonce, key + ctx->auth_keylen + + ctx->enc_keylen - CTR_RFC3686_NONCE_SIZE, + CTR_RFC3686_NONCE_SIZE); /* Set CTR key size */ ctx->enc_keylen -= CTR_RFC3686_NONCE_SIZE; } @@ -597,7 +587,7 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) } rc = validate_keys_sizes(ctx); - if (unlikely(rc != 0)) + if (rc) goto badkey; /* STAT_PHASE_1: Copy key to ctx */ @@ -609,8 +599,8 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) if (ctx->auth_mode == DRV_HASH_XCBC_MAC) { memcpy(ctx->auth_state.xcbc.xcbc_keys, key, ctx->auth_keylen); } else if (ctx->auth_mode != DRV_HASH_NULL) { /* HMAC */ - rc = ssi_get_plain_hmac_key(tfm, key, ctx->auth_keylen); - if (rc != 0) + rc = cc_get_plain_hmac_key(tfm, key, ctx->auth_keylen); + if (rc) goto badkey; } @@ -635,8 +625,8 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) /* STAT_PHASE_3: Submit sequence to HW */ if (seq_len > 0) { /* For CCM there is no sequence to setup the key */ - rc = send_request(ctx->drvdata, &ssi_req, desc, seq_len, 0); - if (unlikely(rc != 0)) { + rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, seq_len); + if (rc) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); goto setkey_error; } @@ -652,10 +642,10 @@ setkey_error: return rc; } -#if SSI_CC_HAS_AES_CCM -static int ssi_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) +static int cc_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); if (keylen < 3) return -EINVAL; @@ -663,20 +653,18 @@ static int ssi_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, unsign keylen -= 3; memcpy(ctx->ctr_nonce, key + keylen, 3); - return ssi_aead_setkey(tfm, key, keylen); + return cc_aead_setkey(tfm, key, keylen); } -#endif /*SSI_CC_HAS_AES_CCM*/ -static int ssi_aead_setauthsize( - struct crypto_aead *authenc, - unsigned int authsize) +static int cc_aead_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(authenc); + struct cc_aead_ctx *ctx = crypto_aead_ctx(authenc); struct device *dev = drvdata_to_dev(ctx->drvdata); /* Unsupported auth. sizes */ - if ((authsize == 0) || - (authsize > crypto_aead_maxauthsize(authenc))) { + if (authsize == 0 || + authsize > crypto_aead_maxauthsize(authenc)) { return -ENOTSUPP; } @@ -686,9 +674,8 @@ static int ssi_aead_setauthsize( return 0; } -#if SSI_CC_HAS_AES_CCM -static int ssi_rfc4309_ccm_setauthsize(struct crypto_aead *authenc, - unsigned int authsize) +static int cc_rfc4309_ccm_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) { switch (authsize) { case 8: @@ -699,11 +686,11 @@ static int ssi_rfc4309_ccm_setauthsize(struct crypto_aead *authenc, return -EINVAL; } - return ssi_aead_setauthsize(authenc, authsize); + return cc_aead_setauthsize(authenc, authsize); } -static int ssi_ccm_setauthsize(struct crypto_aead *authenc, - unsigned int authsize) +static int cc_ccm_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) { switch (authsize) { case 4: @@ -718,46 +705,41 @@ static int ssi_ccm_setauthsize(struct crypto_aead *authenc, return -EINVAL; } - return ssi_aead_setauthsize(authenc, authsize); + return cc_aead_setauthsize(authenc, authsize); } -#endif /*SSI_CC_HAS_AES_CCM*/ - -static inline void -ssi_aead_create_assoc_desc( - struct aead_request *areq, - unsigned int flow_mode, - struct cc_hw_desc desc[], - unsigned int *seq_size) + +static void cc_set_assoc_desc(struct aead_request *areq, unsigned int flow_mode, + struct cc_hw_desc desc[], unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(areq); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *areq_ctx = aead_request_ctx(areq); - enum ssi_req_dma_buf_type assoc_dma_type = areq_ctx->assoc_buff_type; + enum cc_req_dma_buf_type assoc_dma_type = areq_ctx->assoc_buff_type; unsigned int idx = *seq_size; struct device *dev = drvdata_to_dev(ctx->drvdata); switch (assoc_dma_type) { - case SSI_DMA_BUF_DLLI: + case CC_DMA_BUF_DLLI: dev_dbg(dev, "ASSOC buffer type DLLI\n"); hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_DLLI, sg_dma_address(areq->src), - areq->assoclen, NS_BIT); set_flow_mode(&desc[idx], - flow_mode); - if ((ctx->auth_mode == DRV_HASH_XCBC_MAC) && - (areq_ctx->cryptlen > 0)) + areq->assoclen, NS_BIT); + set_flow_mode(&desc[idx], flow_mode); + if (ctx->auth_mode == DRV_HASH_XCBC_MAC && + areq_ctx->cryptlen > 0) set_din_not_last_indication(&desc[idx]); break; - case SSI_DMA_BUF_MLLI: + case CC_DMA_BUF_MLLI: dev_dbg(dev, "ASSOC buffer type MLLI\n"); hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_MLLI, areq_ctx->assoc.sram_addr, areq_ctx->assoc.mlli_nents, NS_BIT); set_flow_mode(&desc[idx], flow_mode); - if ((ctx->auth_mode == DRV_HASH_XCBC_MAC) && - (areq_ctx->cryptlen > 0)) + if (ctx->auth_mode == DRV_HASH_XCBC_MAC && + areq_ctx->cryptlen > 0) set_din_not_last_indication(&desc[idx]); break; - case SSI_DMA_BUF_NULL: + case CC_DMA_BUF_NULL: default: dev_err(dev, "Invalid ASSOC buffer type\n"); } @@ -765,23 +747,20 @@ ssi_aead_create_assoc_desc( *seq_size = (++idx); } -static inline void -ssi_aead_process_authenc_data_desc( - struct aead_request *areq, - unsigned int flow_mode, - struct cc_hw_desc desc[], - unsigned int *seq_size, - int direct) +static void cc_proc_authen_desc(struct aead_request *areq, + unsigned int flow_mode, + struct cc_hw_desc desc[], + unsigned int *seq_size, int direct) { struct aead_req_ctx *areq_ctx = aead_request_ctx(areq); - enum ssi_req_dma_buf_type data_dma_type = areq_ctx->data_buff_type; + enum cc_req_dma_buf_type data_dma_type = areq_ctx->data_buff_type; unsigned int idx = *seq_size; struct crypto_aead *tfm = crypto_aead_reqtfm(areq); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); switch (data_dma_type) { - case SSI_DMA_BUF_DLLI: + case CC_DMA_BUF_DLLI: { struct scatterlist *cipher = (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? @@ -798,16 +777,16 @@ ssi_aead_process_authenc_data_desc( set_flow_mode(&desc[idx], flow_mode); break; } - case SSI_DMA_BUF_MLLI: + case CC_DMA_BUF_MLLI: { /* DOUBLE-PASS flow (as default) * assoc. + iv + data -compact in one table * if assoclen is ZERO only IV perform */ - ssi_sram_addr_t mlli_addr = areq_ctx->assoc.sram_addr; + cc_sram_addr_t mlli_addr = areq_ctx->assoc.sram_addr; u32 mlli_nents = areq_ctx->assoc.mlli_nents; - if (likely(areq_ctx->is_single_pass)) { + if (areq_ctx->is_single_pass) { if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) { mlli_addr = areq_ctx->dst.sram_addr; mlli_nents = areq_ctx->dst.mlli_nents; @@ -824,7 +803,7 @@ ssi_aead_process_authenc_data_desc( set_flow_mode(&desc[idx], flow_mode); break; } - case SSI_DMA_BUF_NULL: + case CC_DMA_BUF_NULL: default: dev_err(dev, "AUTHENC: Invalid SRC/DST buffer type\n"); } @@ -832,37 +811,36 @@ ssi_aead_process_authenc_data_desc( *seq_size = (++idx); } -static inline void -ssi_aead_process_cipher_data_desc( - struct aead_request *areq, - unsigned int flow_mode, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_proc_cipher_desc(struct aead_request *areq, + unsigned int flow_mode, + struct cc_hw_desc desc[], + unsigned int *seq_size) { unsigned int idx = *seq_size; struct aead_req_ctx *areq_ctx = aead_request_ctx(areq); - enum ssi_req_dma_buf_type data_dma_type = areq_ctx->data_buff_type; + enum cc_req_dma_buf_type data_dma_type = areq_ctx->data_buff_type; struct crypto_aead *tfm = crypto_aead_reqtfm(areq); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); if (areq_ctx->cryptlen == 0) return; /*null processing*/ switch (data_dma_type) { - case SSI_DMA_BUF_DLLI: + case CC_DMA_BUF_DLLI: dev_dbg(dev, "CIPHER: SRC/DST buffer type DLLI\n"); hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_DLLI, (sg_dma_address(areq_ctx->src_sgl) + - areq_ctx->src_offset), areq_ctx->cryptlen, NS_BIT); + areq_ctx->src_offset), areq_ctx->cryptlen, + NS_BIT); set_dout_dlli(&desc[idx], (sg_dma_address(areq_ctx->dst_sgl) + areq_ctx->dst_offset), areq_ctx->cryptlen, NS_BIT, 0); set_flow_mode(&desc[idx], flow_mode); break; - case SSI_DMA_BUF_MLLI: + case CC_DMA_BUF_MLLI: dev_dbg(dev, "CIPHER: SRC/DST buffer type MLLI\n"); hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_MLLI, areq_ctx->src.sram_addr, @@ -871,7 +849,7 @@ ssi_aead_process_cipher_data_desc( areq_ctx->dst.mlli_nents, NS_BIT, 0); set_flow_mode(&desc[idx], flow_mode); break; - case SSI_DMA_BUF_NULL: + case CC_DMA_BUF_NULL: default: dev_err(dev, "CIPHER: Invalid SRC/DST buffer type\n"); } @@ -879,13 +857,12 @@ ssi_aead_process_cipher_data_desc( *seq_size = (++idx); } -static inline void ssi_aead_process_digest_result_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_proc_digest_desc(struct aead_request *req, + struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int idx = *seq_size; unsigned int hash_mode = (ctx->auth_mode == DRV_HASH_SHA1) ? @@ -930,13 +907,12 @@ static inline void ssi_aead_process_digest_result_desc( *seq_size = (++idx); } -static inline void ssi_aead_setup_cipher_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_set_cipher_desc(struct aead_request *req, + struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int hw_iv_size = req_ctx->hw_iv_size; unsigned int idx = *seq_size; @@ -976,11 +952,8 @@ static inline void ssi_aead_setup_cipher_desc( *seq_size = idx; } -static inline void ssi_aead_process_cipher( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size, - unsigned int data_flow_mode) +static void cc_proc_cipher(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size, unsigned int data_flow_mode) { struct aead_req_ctx *req_ctx = aead_request_ctx(req); int direct = req_ctx->gen_ctx.op_type; @@ -989,8 +962,8 @@ static inline void ssi_aead_process_cipher( if (req_ctx->cryptlen == 0) return; /*null processing*/ - ssi_aead_setup_cipher_desc(req, desc, &idx); - ssi_aead_process_cipher_data_desc(req, data_flow_mode, desc, &idx); + cc_set_cipher_desc(req, desc, &idx); + cc_proc_cipher_desc(req, data_flow_mode, desc, &idx); if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) { /* We must wait for DMA to write all cipher */ hw_desc_init(&desc[idx]); @@ -1002,13 +975,11 @@ static inline void ssi_aead_process_cipher( *seq_size = idx; } -static inline void ssi_aead_hmac_setup_digest_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_set_hmac_desc(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); unsigned int hash_mode = (ctx->auth_mode == DRV_HASH_SHA1) ? DRV_HASH_HW_SHA1 : DRV_HASH_HW_SHA256; unsigned int digest_size = (ctx->auth_mode == DRV_HASH_SHA1) ? @@ -1028,10 +999,8 @@ static inline void ssi_aead_hmac_setup_digest_desc( /* Load init. digest len (64 bytes) */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], hash_mode); - set_din_sram(&desc[idx], - ssi_ahash_get_initial_digest_len_sram_addr(ctx->drvdata, - hash_mode), - HASH_LEN_SIZE); + set_din_sram(&desc[idx], cc_digest_len_addr(ctx->drvdata, hash_mode), + HASH_LEN_SIZE); set_flow_mode(&desc[idx], S_DIN_to_HASH); set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); idx++; @@ -1039,13 +1008,11 @@ static inline void ssi_aead_hmac_setup_digest_desc( *seq_size = idx; } -static inline void ssi_aead_xcbc_setup_digest_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_set_xcbc_desc(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); unsigned int idx = *seq_size; /* Loading MAC state */ @@ -1101,28 +1068,26 @@ static inline void ssi_aead_xcbc_setup_digest_desc( *seq_size = idx; } -static inline void ssi_aead_process_digest_header_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_proc_header_desc(struct aead_request *req, + struct cc_hw_desc desc[], + unsigned int *seq_size) { unsigned int idx = *seq_size; /* Hash associated data */ if (req->assoclen > 0) - ssi_aead_create_assoc_desc(req, DIN_HASH, desc, &idx); + cc_set_assoc_desc(req, DIN_HASH, desc, &idx); /* Hash IV */ *seq_size = idx; } -static inline void ssi_aead_process_digest_scheme_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_proc_scheme_desc(struct aead_request *req, + struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); - struct ssi_aead_handle *aead_handle = ctx->drvdata->aead_handle; + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_handle *aead_handle = ctx->drvdata->aead_handle; unsigned int hash_mode = (ctx->auth_mode == DRV_HASH_SHA1) ? DRV_HASH_HW_SHA1 : DRV_HASH_HW_SHA256; unsigned int digest_size = (ctx->auth_mode == DRV_HASH_SHA1) ? @@ -1161,9 +1126,7 @@ static inline void ssi_aead_process_digest_scheme_desc( /* Load init. digest len (64 bytes) */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], hash_mode); - set_din_sram(&desc[idx], - ssi_ahash_get_initial_digest_len_sram_addr(ctx->drvdata, - hash_mode), + set_din_sram(&desc[idx], cc_digest_len_addr(ctx->drvdata, hash_mode), HASH_LEN_SIZE); set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); set_flow_mode(&desc[idx], S_DIN_to_HASH); @@ -1180,20 +1143,17 @@ static inline void ssi_aead_process_digest_scheme_desc( *seq_size = idx; } -static inline void ssi_aead_load_mlli_to_sram( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_mlli_to_sram(struct aead_request *req, + struct cc_hw_desc desc[], unsigned int *seq_size) { struct aead_req_ctx *req_ctx = aead_request_ctx(req); struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - if (unlikely( - (req_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI) || - (req_ctx->data_buff_type == SSI_DMA_BUF_MLLI) || - !req_ctx->is_single_pass)) { + if (req_ctx->assoc_buff_type == CC_DMA_BUF_MLLI || + req_ctx->data_buff_type == CC_DMA_BUF_MLLI || + !req_ctx->is_single_pass) { dev_dbg(dev, "Copy-to-sram: mlli_dma=%08x, mlli_size=%u\n", (unsigned int)ctx->drvdata->mlli_sram_addr, req_ctx->mlli_params.mlli_len); @@ -1210,54 +1170,52 @@ static inline void ssi_aead_load_mlli_to_sram( } } -static inline enum cc_flow_mode ssi_aead_get_data_flow_mode( - enum drv_crypto_direction direct, - enum cc_flow_mode setup_flow_mode, - bool is_single_pass) +static enum cc_flow_mode cc_get_data_flow(enum drv_crypto_direction direct, + enum cc_flow_mode setup_flow_mode, + bool is_single_pass) { enum cc_flow_mode data_flow_mode; if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) { if (setup_flow_mode == S_DIN_to_AES) - data_flow_mode = likely(is_single_pass) ? + data_flow_mode = is_single_pass ? AES_to_HASH_and_DOUT : DIN_AES_DOUT; else - data_flow_mode = likely(is_single_pass) ? + data_flow_mode = is_single_pass ? DES_to_HASH_and_DOUT : DIN_DES_DOUT; } else { /* Decrypt */ if (setup_flow_mode == S_DIN_to_AES) - data_flow_mode = likely(is_single_pass) ? - AES_and_HASH : DIN_AES_DOUT; + data_flow_mode = is_single_pass ? + AES_and_HASH : DIN_AES_DOUT; else - data_flow_mode = likely(is_single_pass) ? - DES_and_HASH : DIN_DES_DOUT; + data_flow_mode = is_single_pass ? + DES_and_HASH : DIN_DES_DOUT; } return data_flow_mode; } -static inline void ssi_aead_hmac_authenc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_hmac_authenc(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); int direct = req_ctx->gen_ctx.op_type; - unsigned int data_flow_mode = ssi_aead_get_data_flow_mode( - direct, ctx->flow_mode, req_ctx->is_single_pass); + unsigned int data_flow_mode = + cc_get_data_flow(direct, ctx->flow_mode, + req_ctx->is_single_pass); if (req_ctx->is_single_pass) { /** * Single-pass flow */ - ssi_aead_hmac_setup_digest_desc(req, desc, seq_size); - ssi_aead_setup_cipher_desc(req, desc, seq_size); - ssi_aead_process_digest_header_desc(req, desc, seq_size); - ssi_aead_process_cipher_data_desc(req, data_flow_mode, desc, seq_size); - ssi_aead_process_digest_scheme_desc(req, desc, seq_size); - ssi_aead_process_digest_result_desc(req, desc, seq_size); + cc_set_hmac_desc(req, desc, seq_size); + cc_set_cipher_desc(req, desc, seq_size); + cc_proc_header_desc(req, desc, seq_size); + cc_proc_cipher_desc(req, data_flow_mode, desc, seq_size); + cc_proc_scheme_desc(req, desc, seq_size); + cc_proc_digest_desc(req, desc, seq_size); return; } @@ -1268,49 +1226,48 @@ static inline void ssi_aead_hmac_authenc( */ if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) { /* encrypt first.. */ - ssi_aead_process_cipher(req, desc, seq_size, data_flow_mode); + cc_proc_cipher(req, desc, seq_size, data_flow_mode); /* authenc after..*/ - ssi_aead_hmac_setup_digest_desc(req, desc, seq_size); - ssi_aead_process_authenc_data_desc(req, DIN_HASH, desc, seq_size, direct); - ssi_aead_process_digest_scheme_desc(req, desc, seq_size); - ssi_aead_process_digest_result_desc(req, desc, seq_size); + cc_set_hmac_desc(req, desc, seq_size); + cc_proc_authen_desc(req, DIN_HASH, desc, seq_size, direct); + cc_proc_scheme_desc(req, desc, seq_size); + cc_proc_digest_desc(req, desc, seq_size); } else { /*DECRYPT*/ /* authenc first..*/ - ssi_aead_hmac_setup_digest_desc(req, desc, seq_size); - ssi_aead_process_authenc_data_desc(req, DIN_HASH, desc, seq_size, direct); - ssi_aead_process_digest_scheme_desc(req, desc, seq_size); + cc_set_hmac_desc(req, desc, seq_size); + cc_proc_authen_desc(req, DIN_HASH, desc, seq_size, direct); + cc_proc_scheme_desc(req, desc, seq_size); /* decrypt after.. */ - ssi_aead_process_cipher(req, desc, seq_size, data_flow_mode); + cc_proc_cipher(req, desc, seq_size, data_flow_mode); /* read the digest result with setting the completion bit * must be after the cipher operation */ - ssi_aead_process_digest_result_desc(req, desc, seq_size); + cc_proc_digest_desc(req, desc, seq_size); } } -static inline void -ssi_aead_xcbc_authenc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void +cc_xcbc_authenc(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); int direct = req_ctx->gen_ctx.op_type; - unsigned int data_flow_mode = ssi_aead_get_data_flow_mode( - direct, ctx->flow_mode, req_ctx->is_single_pass); + unsigned int data_flow_mode = + cc_get_data_flow(direct, ctx->flow_mode, + req_ctx->is_single_pass); if (req_ctx->is_single_pass) { /** * Single-pass flow */ - ssi_aead_xcbc_setup_digest_desc(req, desc, seq_size); - ssi_aead_setup_cipher_desc(req, desc, seq_size); - ssi_aead_process_digest_header_desc(req, desc, seq_size); - ssi_aead_process_cipher_data_desc(req, data_flow_mode, desc, seq_size); - ssi_aead_process_digest_result_desc(req, desc, seq_size); + cc_set_xcbc_desc(req, desc, seq_size); + cc_set_cipher_desc(req, desc, seq_size); + cc_proc_header_desc(req, desc, seq_size); + cc_proc_cipher_desc(req, data_flow_mode, desc, seq_size); + cc_proc_digest_desc(req, desc, seq_size); return; } @@ -1321,25 +1278,25 @@ ssi_aead_xcbc_authenc( */ if (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) { /* encrypt first.. */ - ssi_aead_process_cipher(req, desc, seq_size, data_flow_mode); + cc_proc_cipher(req, desc, seq_size, data_flow_mode); /* authenc after.. */ - ssi_aead_xcbc_setup_digest_desc(req, desc, seq_size); - ssi_aead_process_authenc_data_desc(req, DIN_HASH, desc, seq_size, direct); - ssi_aead_process_digest_result_desc(req, desc, seq_size); + cc_set_xcbc_desc(req, desc, seq_size); + cc_proc_authen_desc(req, DIN_HASH, desc, seq_size, direct); + cc_proc_digest_desc(req, desc, seq_size); } else { /*DECRYPT*/ /* authenc first.. */ - ssi_aead_xcbc_setup_digest_desc(req, desc, seq_size); - ssi_aead_process_authenc_data_desc(req, DIN_HASH, desc, seq_size, direct); + cc_set_xcbc_desc(req, desc, seq_size); + cc_proc_authen_desc(req, DIN_HASH, desc, seq_size, direct); /* decrypt after..*/ - ssi_aead_process_cipher(req, desc, seq_size, data_flow_mode); + cc_proc_cipher(req, desc, seq_size, data_flow_mode); /* read the digest result with setting the completion bit * must be after the cipher operation */ - ssi_aead_process_digest_result_desc(req, desc, seq_size); + cc_proc_digest_desc(req, desc, seq_size); } } -static int validate_data_size(struct ssi_aead_ctx *ctx, +static int validate_data_size(struct cc_aead_ctx *ctx, enum drv_crypto_direction direct, struct aead_request *req) { @@ -1349,16 +1306,16 @@ static int validate_data_size(struct ssi_aead_ctx *ctx, unsigned int cipherlen = (direct == DRV_CRYPTO_DIRECTION_DECRYPT) ? (req->cryptlen - ctx->authsize) : req->cryptlen; - if (unlikely((direct == DRV_CRYPTO_DIRECTION_DECRYPT) && - (req->cryptlen < ctx->authsize))) + if (direct == DRV_CRYPTO_DIRECTION_DECRYPT && + req->cryptlen < ctx->authsize) goto data_size_err; areq_ctx->is_single_pass = true; /*defaulted to fast flow*/ switch (ctx->flow_mode) { case S_DIN_to_AES: - if (unlikely((ctx->cipher_mode == DRV_CIPHER_CBC) && - !IS_ALIGNED(cipherlen, AES_BLOCK_SIZE))) + if (ctx->cipher_mode == DRV_CIPHER_CBC && + !IS_ALIGNED(cipherlen, AES_BLOCK_SIZE)) goto data_size_err; if (ctx->cipher_mode == DRV_CIPHER_CCM) break; @@ -1371,15 +1328,15 @@ static int validate_data_size(struct ssi_aead_ctx *ctx, if (!IS_ALIGNED(assoclen, sizeof(u32))) areq_ctx->is_single_pass = false; - if ((ctx->cipher_mode == DRV_CIPHER_CTR) && + if (ctx->cipher_mode == DRV_CIPHER_CTR && !IS_ALIGNED(cipherlen, sizeof(u32))) areq_ctx->is_single_pass = false; break; case S_DIN_to_DES: - if (unlikely(!IS_ALIGNED(cipherlen, DES_BLOCK_SIZE))) + if (!IS_ALIGNED(cipherlen, DES_BLOCK_SIZE)) goto data_size_err; - if (unlikely(!IS_ALIGNED(assoclen, DES_BLOCK_SIZE))) + if (!IS_ALIGNED(assoclen, DES_BLOCK_SIZE)) areq_ctx->is_single_pass = false; break; default: @@ -1393,7 +1350,6 @@ data_size_err: return -EINVAL; } -#if SSI_CC_HAS_AES_CCM static unsigned int format_ccm_a0(u8 *pa0_buff, u32 header_size) { unsigned int len = 0; @@ -1438,13 +1394,11 @@ static int set_msg_len(u8 *block, unsigned int msglen, unsigned int csize) return 0; } -static inline int ssi_aead_ccm( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static int cc_ccm(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int idx = *seq_size; unsigned int cipher_flow_mode; @@ -1508,7 +1462,7 @@ static inline int ssi_aead_ccm( /* process assoc data */ if (req->assoclen > 0) { - ssi_aead_create_assoc_desc(req, DIN_HASH, desc, &idx); + cc_set_assoc_desc(req, DIN_HASH, desc, &idx); } else { hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_DLLI, @@ -1519,8 +1473,8 @@ static inline int ssi_aead_ccm( } /* process the cipher */ - if (req_ctx->cryptlen != 0) - ssi_aead_process_cipher_data_desc(req, cipher_flow_mode, desc, &idx); + if (req_ctx->cryptlen) + cc_proc_cipher_desc(req, cipher_flow_mode, desc, &idx); /* Read temporal MAC */ hw_desc_init(&desc[idx]); @@ -1565,12 +1519,14 @@ static inline int ssi_aead_ccm( static int config_ccm_adata(struct aead_request *req) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); struct aead_req_ctx *req_ctx = aead_request_ctx(req); //unsigned int size_of_a = 0, rem_a_size = 0; unsigned int lp = req->iv[0]; - /* Note: The code assume that req->iv[0] already contains the value of L' of RFC3610 */ + /* Note: The code assume that req->iv[0] already contains the value + * of L' of RFC3610 + */ unsigned int l = lp + 1; /* This is L' of RFC 3610. */ unsigned int m = ctx->authsize; /* This is M' of RFC 3610. */ u8 *b0 = req_ctx->ccm_config + CCM_B0_OFFSET; @@ -1601,7 +1557,7 @@ static int config_ccm_adata(struct aead_request *req) *b0 |= 64; /* Enable bit 6 if Adata exists. */ rc = set_msg_len(b0 + 16 - l, cryptlen, l); /* Write L'. */ - if (rc != 0) { + if (rc) { dev_err(dev, "message len overflow detected"); return rc; } @@ -1619,33 +1575,35 @@ static int config_ccm_adata(struct aead_request *req) return 0; } -static void ssi_rfc4309_ccm_process(struct aead_request *req) +static void cc_proc_rfc4309_ccm(struct aead_request *req) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *areq_ctx = aead_request_ctx(req); /* L' */ memset(areq_ctx->ctr_iv, 0, AES_BLOCK_SIZE); - areq_ctx->ctr_iv[0] = 3; /* For RFC 4309, always use 4 bytes for message length (at most 2^32-1 bytes). */ + /* For RFC 4309, always use 4 bytes for message length + * (at most 2^32-1 bytes). + */ + areq_ctx->ctr_iv[0] = 3; - /* In RFC 4309 there is an 11-bytes nonce+IV part, that we build here. */ - memcpy(areq_ctx->ctr_iv + CCM_BLOCK_NONCE_OFFSET, ctx->ctr_nonce, CCM_BLOCK_NONCE_SIZE); - memcpy(areq_ctx->ctr_iv + CCM_BLOCK_IV_OFFSET, req->iv, CCM_BLOCK_IV_SIZE); + /* In RFC 4309 there is an 11-bytes nonce+IV part, + * that we build here. + */ + memcpy(areq_ctx->ctr_iv + CCM_BLOCK_NONCE_OFFSET, ctx->ctr_nonce, + CCM_BLOCK_NONCE_SIZE); + memcpy(areq_ctx->ctr_iv + CCM_BLOCK_IV_OFFSET, req->iv, + CCM_BLOCK_IV_SIZE); req->iv = areq_ctx->ctr_iv; req->assoclen -= CCM_BLOCK_IV_SIZE; } -#endif /*SSI_CC_HAS_AES_CCM*/ - -#if SSI_CC_HAS_AES_GCM -static inline void ssi_aead_gcm_setup_ghash_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_set_ghash_desc(struct aead_request *req, + struct cc_hw_desc desc[], unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int idx = *seq_size; @@ -1703,7 +1661,9 @@ static inline void ssi_aead_gcm_setup_ghash_desc( set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); idx++; - /* Load GHASH initial STATE (which is 0). (for any hash there is an initial state) */ + /* Load GHASH initial STATE (which is 0). (for any hash there is an + * initial state) + */ hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0x0, AES_BLOCK_SIZE); set_dout_no_dma(&desc[idx], 0, 0, 1); @@ -1717,13 +1677,11 @@ static inline void ssi_aead_gcm_setup_ghash_desc( *seq_size = idx; } -static inline void ssi_aead_gcm_setup_gctr_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_set_gctr_desc(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int idx = *seq_size; @@ -1738,7 +1696,7 @@ static inline void ssi_aead_gcm_setup_gctr_desc( set_flow_mode(&desc[idx], S_DIN_to_AES); idx++; - if ((req_ctx->cryptlen != 0) && (!req_ctx->plaintext_authenticate_only)) { + if (req_ctx->cryptlen && !req_ctx->plaintext_authenticate_only) { /* load AES/CTR initial CTR value inc by 2*/ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], DRV_CIPHER_GCTR); @@ -1755,13 +1713,12 @@ static inline void ssi_aead_gcm_setup_gctr_desc( *seq_size = idx; } -static inline void ssi_aead_process_gcm_result_desc( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_proc_gcm_result(struct aead_request *req, + struct cc_hw_desc desc[], + unsigned int *seq_size) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); dma_addr_t mac_result; unsigned int idx = *seq_size; @@ -1821,10 +1778,8 @@ static inline void ssi_aead_process_gcm_result_desc( *seq_size = idx; } -static inline int ssi_aead_gcm( - struct aead_request *req, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static int cc_gcm(struct aead_request *req, struct cc_hw_desc desc[], + unsigned int *seq_size) { struct aead_req_ctx *req_ctx = aead_request_ctx(req); unsigned int cipher_flow_mode; @@ -1837,77 +1792,33 @@ static inline int ssi_aead_gcm( //in RFC4543 no data to encrypt. just copy data from src to dest. if (req_ctx->plaintext_authenticate_only) { - ssi_aead_process_cipher_data_desc(req, BYPASS, desc, seq_size); - ssi_aead_gcm_setup_ghash_desc(req, desc, seq_size); + cc_proc_cipher_desc(req, BYPASS, desc, seq_size); + cc_set_ghash_desc(req, desc, seq_size); /* process(ghash) assoc data */ - ssi_aead_create_assoc_desc(req, DIN_HASH, desc, seq_size); - ssi_aead_gcm_setup_gctr_desc(req, desc, seq_size); - ssi_aead_process_gcm_result_desc(req, desc, seq_size); + cc_set_assoc_desc(req, DIN_HASH, desc, seq_size); + cc_set_gctr_desc(req, desc, seq_size); + cc_proc_gcm_result(req, desc, seq_size); return 0; } // for gcm and rfc4106. - ssi_aead_gcm_setup_ghash_desc(req, desc, seq_size); + cc_set_ghash_desc(req, desc, seq_size); /* process(ghash) assoc data */ if (req->assoclen > 0) - ssi_aead_create_assoc_desc(req, DIN_HASH, desc, seq_size); - ssi_aead_gcm_setup_gctr_desc(req, desc, seq_size); + cc_set_assoc_desc(req, DIN_HASH, desc, seq_size); + cc_set_gctr_desc(req, desc, seq_size); /* process(gctr+ghash) */ - if (req_ctx->cryptlen != 0) - ssi_aead_process_cipher_data_desc(req, cipher_flow_mode, desc, seq_size); - ssi_aead_process_gcm_result_desc(req, desc, seq_size); + if (req_ctx->cryptlen) + cc_proc_cipher_desc(req, cipher_flow_mode, desc, seq_size); + cc_proc_gcm_result(req, desc, seq_size); return 0; } -#ifdef CC_DEBUG -static inline void ssi_aead_dump_gcm( - const char *title, - struct aead_request *req) -{ - struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); - struct aead_req_ctx *req_ctx = aead_request_ctx(req); - - if (ctx->cipher_mode != DRV_CIPHER_GCTR) - return; - - if (title) { - dev_dbg(dev, "----------------------------------------------------------------------------------"); - dev_dbg(dev, "%s\n", title); - } - - dev_dbg(dev, "cipher_mode %d, authsize %d, enc_keylen %d, assoclen %d, cryptlen %d\n", - ctx->cipher_mode, ctx->authsize, ctx->enc_keylen, - req->assoclen, req_ctx->cryptlen); - - if (ctx->enckey) - dump_byte_array("mac key", ctx->enckey, 16); - - dump_byte_array("req->iv", req->iv, AES_BLOCK_SIZE); - - dump_byte_array("gcm_iv_inc1", req_ctx->gcm_iv_inc1, AES_BLOCK_SIZE); - - dump_byte_array("gcm_iv_inc2", req_ctx->gcm_iv_inc2, AES_BLOCK_SIZE); - - dump_byte_array("hkey", req_ctx->hkey, AES_BLOCK_SIZE); - - dump_byte_array("mac_buf", req_ctx->mac_buf, AES_BLOCK_SIZE); - - dump_byte_array("gcm_len_block", req_ctx->gcm_len_block.len_a, AES_BLOCK_SIZE); - - if (req->src && req->cryptlen) - dump_byte_array("req->src", sg_virt(req->src), req->cryptlen + req->assoclen); - - if (req->dst) - dump_byte_array("req->dst", sg_virt(req->dst), req->cryptlen + ctx->authsize + req->assoclen); -} -#endif - static int config_gcm_context(struct aead_request *req) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *req_ctx = aead_request_ctx(req); struct device *dev = drvdata_to_dev(ctx->drvdata); @@ -1938,10 +1849,14 @@ static int config_gcm_context(struct aead_request *req) memcpy(&req_ctx->gcm_len_block.len_a, &temp64, sizeof(temp64)); temp64 = cpu_to_be64(cryptlen * 8); memcpy(&req_ctx->gcm_len_block.len_c, &temp64, 8); - } else { //rfc4543=> all data(AAD,IV,Plain) are considered additional data that is nothing is encrypted. + } else { + /* rfc4543=> all data(AAD,IV,Plain) are considered additional + * data that is nothing is encrypted. + */ __be64 temp64; - temp64 = cpu_to_be64((req->assoclen + GCM_BLOCK_RFC4_IV_SIZE + cryptlen) * 8); + temp64 = cpu_to_be64((req->assoclen + GCM_BLOCK_RFC4_IV_SIZE + + cryptlen) * 8); memcpy(&req_ctx->gcm_len_block.len_a, &temp64, sizeof(temp64)); temp64 = 0; memcpy(&req_ctx->gcm_len_block.len_c, &temp64, 8); @@ -1950,30 +1865,31 @@ static int config_gcm_context(struct aead_request *req) return 0; } -static void ssi_rfc4_gcm_process(struct aead_request *req) +static void cc_proc_rfc4_gcm(struct aead_request *req) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *areq_ctx = aead_request_ctx(req); - memcpy(areq_ctx->ctr_iv + GCM_BLOCK_RFC4_NONCE_OFFSET, ctx->ctr_nonce, GCM_BLOCK_RFC4_NONCE_SIZE); - memcpy(areq_ctx->ctr_iv + GCM_BLOCK_RFC4_IV_OFFSET, req->iv, GCM_BLOCK_RFC4_IV_SIZE); + memcpy(areq_ctx->ctr_iv + GCM_BLOCK_RFC4_NONCE_OFFSET, + ctx->ctr_nonce, GCM_BLOCK_RFC4_NONCE_SIZE); + memcpy(areq_ctx->ctr_iv + GCM_BLOCK_RFC4_IV_OFFSET, req->iv, + GCM_BLOCK_RFC4_IV_SIZE); req->iv = areq_ctx->ctr_iv; req->assoclen -= GCM_BLOCK_RFC4_IV_SIZE; } -#endif /*SSI_CC_HAS_AES_GCM*/ - -static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction direct) +static int cc_proc_aead(struct aead_request *req, + enum drv_crypto_direction direct) { int rc = 0; int seq_len = 0; struct cc_hw_desc desc[MAX_AEAD_PROCESS_SEQ]; struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct aead_req_ctx *areq_ctx = aead_request_ctx(req); struct device *dev = drvdata_to_dev(ctx->drvdata); - struct ssi_crypto_req ssi_req = {}; + struct cc_crypto_req cc_req = {}; dev_dbg(dev, "%s context=%p req=%p iv=%p src=%p src_ofs=%d dst=%p dst_ofs=%d cryptolen=%d\n", ((direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? "Enc" : "Dec"), @@ -1983,7 +1899,7 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction /* STAT_PHASE_0: Init and sanity checks */ /* Check data length according to mode */ - if (unlikely(validate_data_size(ctx, direct, req) != 0)) { + if (validate_data_size(ctx, direct, req)) { dev_err(dev, "Unsupported crypt/assoc len %d/%d.\n", req->cryptlen, req->assoclen); crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_BLOCK_LEN); @@ -1991,8 +1907,8 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction } /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_aead_complete; - ssi_req.user_arg = (void *)req; + cc_req.user_cb = (void *)cc_aead_complete; + cc_req.user_arg = (void *)req; /* Setup request context */ areq_ctx->gen_ctx.op_type = direct; @@ -2005,7 +1921,8 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction /* Build CTR IV - Copy nonce from last 4 bytes in * CTR key to first 4 bytes in CTR IV */ - memcpy(areq_ctx->ctr_iv, ctx->ctr_nonce, CTR_RFC3686_NONCE_SIZE); + memcpy(areq_ctx->ctr_iv, ctx->ctr_nonce, + CTR_RFC3686_NONCE_SIZE); if (!areq_ctx->backup_giv) /*User none-generated IV*/ memcpy(areq_ctx->ctr_iv + CTR_RFC3686_NONCE_SIZE, req->iv, CTR_RFC3686_IV_SIZE); @@ -2020,17 +1937,17 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction (ctx->cipher_mode == DRV_CIPHER_GCTR)) { areq_ctx->hw_iv_size = AES_BLOCK_SIZE; if (areq_ctx->ctr_iv != req->iv) { - memcpy(areq_ctx->ctr_iv, req->iv, crypto_aead_ivsize(tfm)); + memcpy(areq_ctx->ctr_iv, req->iv, + crypto_aead_ivsize(tfm)); req->iv = areq_ctx->ctr_iv; } } else { areq_ctx->hw_iv_size = crypto_aead_ivsize(tfm); } -#if SSI_CC_HAS_AES_CCM if (ctx->cipher_mode == DRV_CIPHER_CCM) { rc = config_ccm_adata(req); - if (unlikely(rc != 0)) { + if (rc) { dev_dbg(dev, "config_ccm_adata() returned with a failure %d!", rc); goto exit; @@ -2038,23 +1955,18 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction } else { areq_ctx->ccm_hdr_size = ccm_header_size_null; } -#else - areq_ctx->ccm_hdr_size = ccm_header_size_null; -#endif /*SSI_CC_HAS_AES_CCM*/ -#if SSI_CC_HAS_AES_GCM if (ctx->cipher_mode == DRV_CIPHER_GCTR) { rc = config_gcm_context(req); - if (unlikely(rc != 0)) { + if (rc) { dev_dbg(dev, "config_gcm_context() returned with a failure %d!", rc); goto exit; } } -#endif /*SSI_CC_HAS_AES_GCM*/ - rc = ssi_buffer_mgr_map_aead_request(ctx->drvdata, req); - if (unlikely(rc != 0)) { + rc = cc_map_aead_request(ctx->drvdata, req); + if (rc) { dev_err(dev, "map_request() failed\n"); goto exit; } @@ -2063,74 +1975,77 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction if (areq_ctx->backup_giv) { /* set the DMA mapped IV address*/ if (ctx->cipher_mode == DRV_CIPHER_CTR) { - ssi_req.ivgen_dma_addr[0] = areq_ctx->gen_ctx.iv_dma_addr + CTR_RFC3686_NONCE_SIZE; - ssi_req.ivgen_dma_addr_len = 1; + cc_req.ivgen_dma_addr[0] = + areq_ctx->gen_ctx.iv_dma_addr + + CTR_RFC3686_NONCE_SIZE; + cc_req.ivgen_dma_addr_len = 1; } else if (ctx->cipher_mode == DRV_CIPHER_CCM) { - /* In ccm, the IV needs to exist both inside B0 and inside the counter. - * It is also copied to iv_dma_addr for other reasons (like returning - * it to the user). + /* In ccm, the IV needs to exist both inside B0 and + * inside the counter.It is also copied to iv_dma_addr + * for other reasons (like returning it to the user). * So, using 3 (identical) IV outputs. */ - ssi_req.ivgen_dma_addr[0] = areq_ctx->gen_ctx.iv_dma_addr + CCM_BLOCK_IV_OFFSET; - ssi_req.ivgen_dma_addr[1] = sg_dma_address(&areq_ctx->ccm_adata_sg) + CCM_B0_OFFSET + CCM_BLOCK_IV_OFFSET; - ssi_req.ivgen_dma_addr[2] = sg_dma_address(&areq_ctx->ccm_adata_sg) + CCM_CTR_COUNT_0_OFFSET + CCM_BLOCK_IV_OFFSET; - ssi_req.ivgen_dma_addr_len = 3; + cc_req.ivgen_dma_addr[0] = + areq_ctx->gen_ctx.iv_dma_addr + + CCM_BLOCK_IV_OFFSET; + cc_req.ivgen_dma_addr[1] = + sg_dma_address(&areq_ctx->ccm_adata_sg) + + CCM_B0_OFFSET + CCM_BLOCK_IV_OFFSET; + cc_req.ivgen_dma_addr[2] = + sg_dma_address(&areq_ctx->ccm_adata_sg) + + CCM_CTR_COUNT_0_OFFSET + CCM_BLOCK_IV_OFFSET; + cc_req.ivgen_dma_addr_len = 3; } else { - ssi_req.ivgen_dma_addr[0] = areq_ctx->gen_ctx.iv_dma_addr; - ssi_req.ivgen_dma_addr_len = 1; + cc_req.ivgen_dma_addr[0] = + areq_ctx->gen_ctx.iv_dma_addr; + cc_req.ivgen_dma_addr_len = 1; } /* set the IV size (8/16 B long)*/ - ssi_req.ivgen_size = crypto_aead_ivsize(tfm); + cc_req.ivgen_size = crypto_aead_ivsize(tfm); } /* STAT_PHASE_2: Create sequence */ /* Load MLLI tables to SRAM if necessary */ - ssi_aead_load_mlli_to_sram(req, desc, &seq_len); + cc_mlli_to_sram(req, desc, &seq_len); /*TODO: move seq len by reference */ switch (ctx->auth_mode) { case DRV_HASH_SHA1: case DRV_HASH_SHA256: - ssi_aead_hmac_authenc(req, desc, &seq_len); + cc_hmac_authenc(req, desc, &seq_len); break; case DRV_HASH_XCBC_MAC: - ssi_aead_xcbc_authenc(req, desc, &seq_len); + cc_xcbc_authenc(req, desc, &seq_len); break; -#if (SSI_CC_HAS_AES_CCM || SSI_CC_HAS_AES_GCM) case DRV_HASH_NULL: -#if SSI_CC_HAS_AES_CCM if (ctx->cipher_mode == DRV_CIPHER_CCM) - ssi_aead_ccm(req, desc, &seq_len); -#endif /*SSI_CC_HAS_AES_CCM*/ -#if SSI_CC_HAS_AES_GCM + cc_ccm(req, desc, &seq_len); if (ctx->cipher_mode == DRV_CIPHER_GCTR) - ssi_aead_gcm(req, desc, &seq_len); -#endif /*SSI_CC_HAS_AES_GCM*/ - break; -#endif + cc_gcm(req, desc, &seq_len); + break; default: dev_err(dev, "Unsupported authenc (%d)\n", ctx->auth_mode); - ssi_buffer_mgr_unmap_aead_request(dev, req); + cc_unmap_aead_request(dev, req); rc = -ENOTSUPP; goto exit; } /* STAT_PHASE_3: Lock HW and push sequence */ - rc = send_request(ctx->drvdata, &ssi_req, desc, seq_len, 1); + rc = cc_send_request(ctx->drvdata, &cc_req, desc, seq_len, &req->base); - if (unlikely(rc != -EINPROGRESS)) { + if (rc != -EINPROGRESS && rc != -EBUSY) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_aead_request(dev, req); + cc_unmap_aead_request(dev, req); } exit: return rc; } -static int ssi_aead_encrypt(struct aead_request *req) +static int cc_aead_encrypt(struct aead_request *req) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc; @@ -2142,21 +2057,20 @@ static int ssi_aead_encrypt(struct aead_request *req) areq_ctx->plaintext_authenticate_only = false; - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; return rc; } -#if SSI_CC_HAS_AES_CCM -static int ssi_rfc4309_ccm_encrypt(struct aead_request *req) +static int cc_rfc4309_ccm_encrypt(struct aead_request *req) { - /* Very similar to ssi_aead_encrypt() above. */ + /* Very similar to cc_aead_encrypt() above. */ struct aead_req_ctx *areq_ctx = aead_request_ctx(req); struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); int rc = -EINVAL; @@ -2170,17 +2084,16 @@ static int ssi_rfc4309_ccm_encrypt(struct aead_request *req) areq_ctx->backup_giv = NULL; areq_ctx->is_gcm4543 = true; - ssi_rfc4309_ccm_process(req); + cc_proc_rfc4309_ccm(req); - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; out: return rc; } -#endif /* SSI_CC_HAS_AES_CCM */ -static int ssi_aead_decrypt(struct aead_request *req) +static int cc_aead_decrypt(struct aead_request *req) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc; @@ -2192,18 +2105,17 @@ static int ssi_aead_decrypt(struct aead_request *req) areq_ctx->plaintext_authenticate_only = false; - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_DECRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; return rc; } -#if SSI_CC_HAS_AES_CCM -static int ssi_rfc4309_ccm_decrypt(struct aead_request *req) +static int cc_rfc4309_ccm_decrypt(struct aead_request *req) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc = -EINVAL; @@ -2218,22 +2130,20 @@ static int ssi_rfc4309_ccm_decrypt(struct aead_request *req) areq_ctx->backup_giv = NULL; areq_ctx->is_gcm4543 = true; - ssi_rfc4309_ccm_process(req); + cc_proc_rfc4309_ccm(req); - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_DECRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; out: return rc; } -#endif /* SSI_CC_HAS_AES_CCM */ - -#if SSI_CC_HAS_AES_GCM -static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) +static int cc_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "%s() keylen %d, key %p\n", __func__, keylen, key); @@ -2244,12 +2154,13 @@ static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign keylen -= 4; memcpy(ctx->ctr_nonce, key + keylen, 4); - return ssi_aead_setkey(tfm, key, keylen); + return cc_aead_setkey(tfm, key, keylen); } -static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen) +static int cc_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, + unsigned int keylen) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "%s() keylen %d, key %p\n", __func__, keylen, key); @@ -2260,11 +2171,11 @@ static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign keylen -= 4; memcpy(ctx->ctr_nonce, key + keylen, 4); - return ssi_aead_setkey(tfm, key, keylen); + return cc_aead_setkey(tfm, key, keylen); } -static int ssi_gcm_setauthsize(struct crypto_aead *authenc, - unsigned int authsize) +static int cc_gcm_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) { switch (authsize) { case 4: @@ -2279,13 +2190,13 @@ static int ssi_gcm_setauthsize(struct crypto_aead *authenc, return -EINVAL; } - return ssi_aead_setauthsize(authenc, authsize); + return cc_aead_setauthsize(authenc, authsize); } -static int ssi_rfc4106_gcm_setauthsize(struct crypto_aead *authenc, - unsigned int authsize) +static int cc_rfc4106_gcm_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(authenc); + struct cc_aead_ctx *ctx = crypto_aead_ctx(authenc); struct device *dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "authsize %d\n", authsize); @@ -2299,13 +2210,13 @@ static int ssi_rfc4106_gcm_setauthsize(struct crypto_aead *authenc, return -EINVAL; } - return ssi_aead_setauthsize(authenc, authsize); + return cc_aead_setauthsize(authenc, authsize); } -static int ssi_rfc4543_gcm_setauthsize(struct crypto_aead *authenc, - unsigned int authsize) +static int cc_rfc4543_gcm_setauthsize(struct crypto_aead *authenc, + unsigned int authsize) { - struct ssi_aead_ctx *ctx = crypto_aead_ctx(authenc); + struct cc_aead_ctx *ctx = crypto_aead_ctx(authenc); struct device *dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "authsize %d\n", authsize); @@ -2313,15 +2224,15 @@ static int ssi_rfc4543_gcm_setauthsize(struct crypto_aead *authenc, if (authsize != 16) return -EINVAL; - return ssi_aead_setauthsize(authenc, authsize); + return cc_aead_setauthsize(authenc, authsize); } -static int ssi_rfc4106_gcm_encrypt(struct aead_request *req) +static int cc_rfc4106_gcm_encrypt(struct aead_request *req) { - /* Very similar to ssi_aead_encrypt() above. */ + /* Very similar to cc_aead_encrypt() above. */ struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc = -EINVAL; @@ -2337,19 +2248,19 @@ static int ssi_rfc4106_gcm_encrypt(struct aead_request *req) areq_ctx->plaintext_authenticate_only = false; - ssi_rfc4_gcm_process(req); + cc_proc_rfc4_gcm(req); areq_ctx->is_gcm4543 = true; - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; out: return rc; } -static int ssi_rfc4543_gcm_encrypt(struct aead_request *req) +static int cc_rfc4543_gcm_encrypt(struct aead_request *req) { - /* Very similar to ssi_aead_encrypt() above. */ + /* Very similar to cc_aead_encrypt() above. */ struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc; @@ -2361,22 +2272,22 @@ static int ssi_rfc4543_gcm_encrypt(struct aead_request *req) areq_ctx->backup_iv = req->iv; areq_ctx->backup_giv = NULL; - ssi_rfc4_gcm_process(req); + cc_proc_rfc4_gcm(req); areq_ctx->is_gcm4543 = true; - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_ENCRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; return rc; } -static int ssi_rfc4106_gcm_decrypt(struct aead_request *req) +static int cc_rfc4106_gcm_decrypt(struct aead_request *req) { - /* Very similar to ssi_aead_decrypt() above. */ + /* Very similar to cc_aead_decrypt() above. */ struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm); + struct cc_aead_ctx *ctx = crypto_aead_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc = -EINVAL; @@ -2392,19 +2303,19 @@ static int ssi_rfc4106_gcm_decrypt(struct aead_request *req) areq_ctx->plaintext_authenticate_only = false; - ssi_rfc4_gcm_process(req); + cc_proc_rfc4_gcm(req); areq_ctx->is_gcm4543 = true; - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_DECRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; out: return rc; } -static int ssi_rfc4543_gcm_decrypt(struct aead_request *req) +static int cc_rfc4543_gcm_decrypt(struct aead_request *req) { - /* Very similar to ssi_aead_decrypt() above. */ + /* Very similar to cc_aead_decrypt() above. */ struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc; @@ -2416,31 +2327,30 @@ static int ssi_rfc4543_gcm_decrypt(struct aead_request *req) areq_ctx->backup_iv = req->iv; areq_ctx->backup_giv = NULL; - ssi_rfc4_gcm_process(req); + cc_proc_rfc4_gcm(req); areq_ctx->is_gcm4543 = true; - rc = ssi_aead_process(req, DRV_CRYPTO_DIRECTION_DECRYPT); - if (rc != -EINPROGRESS) + rc = cc_proc_aead(req, DRV_CRYPTO_DIRECTION_DECRYPT); + if (rc != -EINPROGRESS && rc != -EBUSY) req->iv = areq_ctx->backup_iv; return rc; } -#endif /* SSI_CC_HAS_AES_GCM */ /* DX Block aead alg */ -static struct ssi_alg_template aead_algs[] = { +static struct cc_alg_template aead_algs[] = { { .name = "authenc(hmac(sha1),cbc(aes))", .driver_name = "authenc-hmac-sha1-cbc-aes-dx", .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = AES_BLOCK_SIZE, .maxauthsize = SHA1_DIGEST_SIZE, }, @@ -2454,12 +2364,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = DES3_EDE_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = DES3_EDE_BLOCK_SIZE, .maxauthsize = SHA1_DIGEST_SIZE, }, @@ -2473,12 +2383,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = AES_BLOCK_SIZE, .maxauthsize = SHA256_DIGEST_SIZE, }, @@ -2492,12 +2402,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = DES3_EDE_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = DES3_EDE_BLOCK_SIZE, .maxauthsize = SHA256_DIGEST_SIZE, }, @@ -2511,12 +2421,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = AES_BLOCK_SIZE, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2530,12 +2440,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = CTR_RFC3686_IV_SIZE, .maxauthsize = SHA1_DIGEST_SIZE, }, @@ -2549,12 +2459,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = CTR_RFC3686_IV_SIZE, .maxauthsize = SHA256_DIGEST_SIZE, }, @@ -2568,12 +2478,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_aead_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_aead_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = CTR_RFC3686_IV_SIZE, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2581,19 +2491,18 @@ static struct ssi_alg_template aead_algs[] = { .flow_mode = S_DIN_to_AES, .auth_mode = DRV_HASH_XCBC_MAC, }, -#if SSI_CC_HAS_AES_CCM { .name = "ccm(aes)", .driver_name = "ccm-aes-dx", .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_ccm_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_ccm_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = AES_BLOCK_SIZE, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2607,12 +2516,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_rfc4309_ccm_setkey, - .setauthsize = ssi_rfc4309_ccm_setauthsize, - .encrypt = ssi_rfc4309_ccm_encrypt, - .decrypt = ssi_rfc4309_ccm_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_rfc4309_ccm_setkey, + .setauthsize = cc_rfc4309_ccm_setauthsize, + .encrypt = cc_rfc4309_ccm_encrypt, + .decrypt = cc_rfc4309_ccm_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = CCM_BLOCK_IV_SIZE, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2620,20 +2529,18 @@ static struct ssi_alg_template aead_algs[] = { .flow_mode = S_DIN_to_AES, .auth_mode = DRV_HASH_NULL, }, -#endif /*SSI_CC_HAS_AES_CCM*/ -#if SSI_CC_HAS_AES_GCM { .name = "gcm(aes)", .driver_name = "gcm-aes-dx", .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_aead_setkey, - .setauthsize = ssi_gcm_setauthsize, - .encrypt = ssi_aead_encrypt, - .decrypt = ssi_aead_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_aead_setkey, + .setauthsize = cc_gcm_setauthsize, + .encrypt = cc_aead_encrypt, + .decrypt = cc_aead_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = 12, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2647,12 +2554,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_rfc4106_gcm_setkey, - .setauthsize = ssi_rfc4106_gcm_setauthsize, - .encrypt = ssi_rfc4106_gcm_encrypt, - .decrypt = ssi_rfc4106_gcm_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_rfc4106_gcm_setkey, + .setauthsize = cc_rfc4106_gcm_setauthsize, + .encrypt = cc_rfc4106_gcm_encrypt, + .decrypt = cc_rfc4106_gcm_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = GCM_BLOCK_RFC4_IV_SIZE, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2666,12 +2573,12 @@ static struct ssi_alg_template aead_algs[] = { .blocksize = 1, .type = CRYPTO_ALG_TYPE_AEAD, .template_aead = { - .setkey = ssi_rfc4543_gcm_setkey, - .setauthsize = ssi_rfc4543_gcm_setauthsize, - .encrypt = ssi_rfc4543_gcm_encrypt, - .decrypt = ssi_rfc4543_gcm_decrypt, - .init = ssi_aead_init, - .exit = ssi_aead_exit, + .setkey = cc_rfc4543_gcm_setkey, + .setauthsize = cc_rfc4543_gcm_setauthsize, + .encrypt = cc_rfc4543_gcm_encrypt, + .decrypt = cc_rfc4543_gcm_decrypt, + .init = cc_aead_init, + .exit = cc_aead_exit, .ivsize = GCM_BLOCK_RFC4_IV_SIZE, .maxauthsize = AES_BLOCK_SIZE, }, @@ -2679,52 +2586,51 @@ static struct ssi_alg_template aead_algs[] = { .flow_mode = S_DIN_to_AES, .auth_mode = DRV_HASH_NULL, }, -#endif /*SSI_CC_HAS_AES_GCM*/ }; -static struct ssi_crypto_alg *ssi_aead_create_alg( - struct ssi_alg_template *template, - struct device *dev) +static struct cc_crypto_alg *cc_create_aead_alg(struct cc_alg_template *tmpl, + struct device *dev) { - struct ssi_crypto_alg *t_alg; + struct cc_crypto_alg *t_alg; struct aead_alg *alg; t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL); if (!t_alg) return ERR_PTR(-ENOMEM); - alg = &template->template_aead; + alg = &tmpl->template_aead; - snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", template->name); + snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", tmpl->name); snprintf(alg->base.cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", - template->driver_name); + tmpl->driver_name); alg->base.cra_module = THIS_MODULE; - alg->base.cra_priority = SSI_CRA_PRIO; + alg->base.cra_priority = CC_CRA_PRIO; - alg->base.cra_ctxsize = sizeof(struct ssi_aead_ctx); + alg->base.cra_ctxsize = sizeof(struct cc_aead_ctx); alg->base.cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY | - template->type; - alg->init = ssi_aead_init; - alg->exit = ssi_aead_exit; + tmpl->type; + alg->init = cc_aead_init; + alg->exit = cc_aead_exit; t_alg->aead_alg = *alg; - t_alg->cipher_mode = template->cipher_mode; - t_alg->flow_mode = template->flow_mode; - t_alg->auth_mode = template->auth_mode; + t_alg->cipher_mode = tmpl->cipher_mode; + t_alg->flow_mode = tmpl->flow_mode; + t_alg->auth_mode = tmpl->auth_mode; return t_alg; } -int ssi_aead_free(struct ssi_drvdata *drvdata) +int cc_aead_free(struct cc_drvdata *drvdata) { - struct ssi_crypto_alg *t_alg, *n; - struct ssi_aead_handle *aead_handle = - (struct ssi_aead_handle *)drvdata->aead_handle; + struct cc_crypto_alg *t_alg, *n; + struct cc_aead_handle *aead_handle = + (struct cc_aead_handle *)drvdata->aead_handle; if (aead_handle) { /* Remove registered algs */ - list_for_each_entry_safe(t_alg, n, &aead_handle->aead_list, entry) { + list_for_each_entry_safe(t_alg, n, &aead_handle->aead_list, + entry) { crypto_unregister_aead(&t_alg->aead_alg); list_del(&t_alg->entry); kfree(t_alg); @@ -2736,10 +2642,10 @@ int ssi_aead_free(struct ssi_drvdata *drvdata) return 0; } -int ssi_aead_alloc(struct ssi_drvdata *drvdata) +int cc_aead_alloc(struct cc_drvdata *drvdata) { - struct ssi_aead_handle *aead_handle; - struct ssi_crypto_alg *t_alg; + struct cc_aead_handle *aead_handle; + struct cc_crypto_alg *t_alg; int rc = -ENOMEM; int alg; struct device *dev = drvdata_to_dev(drvdata); @@ -2753,8 +2659,9 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata) INIT_LIST_HEAD(&aead_handle->aead_list); drvdata->aead_handle = aead_handle; - aead_handle->sram_workspace_addr = ssi_sram_mgr_alloc( - drvdata, MAX_HMAC_DIGEST_SIZE); + aead_handle->sram_workspace_addr = cc_sram_alloc(drvdata, + MAX_HMAC_DIGEST_SIZE); + if (aead_handle->sram_workspace_addr == NULL_SRAM_ADDR) { dev_err(dev, "SRAM pool exhausted\n"); rc = -ENOMEM; @@ -2763,7 +2670,7 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata) /* Linux crypto */ for (alg = 0; alg < ARRAY_SIZE(aead_algs); alg++) { - t_alg = ssi_aead_create_alg(&aead_algs[alg], dev); + t_alg = cc_create_aead_alg(&aead_algs[alg], dev); if (IS_ERR(t_alg)) { rc = PTR_ERR(t_alg); dev_err(dev, "%s alg allocation failed\n", @@ -2772,7 +2679,7 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata) } t_alg->drvdata = drvdata; rc = crypto_register_aead(&t_alg->aead_alg); - if (unlikely(rc != 0)) { + if (rc) { dev_err(dev, "%s alg registration failed\n", t_alg->aead_alg.base.cra_driver_name); goto fail2; @@ -2788,7 +2695,7 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata) fail2: kfree(t_alg); fail1: - ssi_aead_free(drvdata); + cc_aead_free(drvdata); fail0: return rc; } diff --git a/drivers/staging/ccree/ssi_aead.h b/drivers/staging/ccree/cc_aead.h index e85bcd917e7b..5edf3b351fa4 100644 --- a/drivers/staging/ccree/ssi_aead.h +++ b/drivers/staging/ccree/cc_aead.h @@ -1,25 +1,12 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ -/* \file ssi_aead.h +/* \file cc_aead.h * ARM CryptoCell AEAD Crypto API */ -#ifndef __SSI_AEAD_H__ -#define __SSI_AEAD_H__ +#ifndef __CC_AEAD_H__ +#define __CC_AEAD_H__ #include <linux/kernel.h> #include <crypto/algapi.h> @@ -28,7 +15,7 @@ /* mac_cmp - HW writes 8 B but all bytes hold the same value */ #define ICV_CMP_SIZE 8 #define CCM_CONFIG_BUF_SIZE (AES_BLOCK_SIZE * 3) -#define MAX_MAC_SIZE MAX(SHA256_DIGEST_SIZE, AES_BLOCK_SIZE) +#define MAX_MAC_SIZE SHA256_DIGEST_SIZE /* defines for AES GCM configuration buffer */ #define GCM_BLOCK_LEN_SIZE 8 @@ -74,32 +61,37 @@ struct aead_req_ctx { } gcm_len_block; u8 ccm_config[CCM_CONFIG_BUF_SIZE] ____cacheline_aligned; - unsigned int hw_iv_size ____cacheline_aligned; /*HW actual size input*/ - u8 backup_mac[MAX_MAC_SIZE]; /*used to prevent cache coherence problem*/ + /* HW actual size input */ + unsigned int hw_iv_size ____cacheline_aligned; + /* used to prevent cache coherence problem */ + u8 backup_mac[MAX_MAC_SIZE]; u8 *backup_iv; /*store iv for generated IV flow*/ u8 *backup_giv; /*store iv for rfc3686(ctr) flow*/ dma_addr_t mac_buf_dma_addr; /* internal ICV DMA buffer */ - dma_addr_t ccm_iv0_dma_addr; /* buffer for internal ccm configurations */ + /* buffer for internal ccm configurations */ + dma_addr_t ccm_iv0_dma_addr; dma_addr_t icv_dma_addr; /* Phys. address of ICV */ //used in gcm - dma_addr_t gcm_iv_inc1_dma_addr; /* buffer for internal gcm configurations */ - dma_addr_t gcm_iv_inc2_dma_addr; /* buffer for internal gcm configurations */ + /* buffer for internal gcm configurations */ + dma_addr_t gcm_iv_inc1_dma_addr; + /* buffer for internal gcm configurations */ + dma_addr_t gcm_iv_inc2_dma_addr; dma_addr_t hkey_dma_addr; /* Phys. address of hkey */ dma_addr_t gcm_block_len_dma_addr; /* Phys. address of gcm block len */ bool is_gcm4543; u8 *icv_virt_addr; /* Virt. address of ICV */ struct async_gen_req_ctx gen_ctx; - struct ssi_mlli assoc; - struct ssi_mlli src; - struct ssi_mlli dst; + struct cc_mlli assoc; + struct cc_mlli src; + struct cc_mlli dst; struct scatterlist *src_sgl; struct scatterlist *dst_sgl; unsigned int src_offset; unsigned int dst_offset; - enum ssi_req_dma_buf_type assoc_buff_type; - enum ssi_req_dma_buf_type data_buff_type; + enum cc_req_dma_buf_type assoc_buff_type; + enum cc_req_dma_buf_type data_buff_type; struct mlli_params mlli_params; unsigned int cryptlen; struct scatterlist ccm_adata_sg; @@ -111,7 +103,7 @@ struct aead_req_ctx { bool plaintext_authenticate_only; //for gcm_rfc4543 }; -int ssi_aead_alloc(struct ssi_drvdata *drvdata); -int ssi_aead_free(struct ssi_drvdata *drvdata); +int cc_aead_alloc(struct cc_drvdata *drvdata); +int cc_aead_free(struct cc_drvdata *drvdata); -#endif /*__SSI_AEAD_H__*/ +#endif /*__CC_AEAD_H__*/ diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/cc_buffer_mgr.c index 1f8a225530a8..14b2eabbf70a 100644 --- a/drivers/staging/ccree/ssi_buffer_mgr.c +++ b/drivers/staging/ccree/cc_buffer_mgr.c @@ -1,42 +1,17 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ -#include <linux/crypto.h> -#include <linux/version.h> -#include <crypto/algapi.h> #include <crypto/internal/aead.h> -#include <crypto/hash.h> #include <crypto/authenc.h> #include <crypto/scatterwalk.h> #include <linux/dmapool.h> #include <linux/dma-mapping.h> -#include <linux/crypto.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include "ssi_buffer_mgr.h" +#include "cc_buffer_mgr.h" #include "cc_lli_defs.h" -#include "ssi_cipher.h" -#include "ssi_hash.h" -#include "ssi_aead.h" - -#define GET_DMA_BUFFER_TYPE(buff_type) ( \ - ((buff_type) == SSI_DMA_BUF_NULL) ? "BUF_NULL" : \ - ((buff_type) == SSI_DMA_BUF_DLLI) ? "BUF_DLLI" : \ - ((buff_type) == SSI_DMA_BUF_MLLI) ? "BUF_MLLI" : "BUF_INVALID") +#include "cc_cipher.h" +#include "cc_hash.h" +#include "cc_aead.h" enum dma_buffer_type { DMA_NULL_TYPE = -1, @@ -64,25 +39,62 @@ struct buffer_array { u32 *mlli_nents[MAX_NUM_OF_BUFFERS_IN_MLLI]; }; +static inline char *cc_dma_buf_type(enum cc_req_dma_buf_type type) +{ + switch (type) { + case CC_DMA_BUF_NULL: + return "BUF_NULL"; + case CC_DMA_BUF_DLLI: + return "BUF_DLLI"; + case CC_DMA_BUF_MLLI: + return "BUF_MLLI"; + default: + return "BUF_INVALID"; + } +} + /** - * ssi_buffer_mgr_get_sgl_nents() - Get scatterlist number of entries. + * cc_copy_mac() - Copy MAC to temporary location + * + * @dev: device object + * @req: aead request object + * @dir: [IN] copy from/to sgl + */ +static void cc_copy_mac(struct device *dev, struct aead_request *req, + enum cc_sg_cpy_direct dir) +{ + struct aead_req_ctx *areq_ctx = aead_request_ctx(req); + struct crypto_aead *tfm = crypto_aead_reqtfm(req); + u32 skip = req->assoclen + req->cryptlen; + + if (areq_ctx->is_gcm4543) + skip += crypto_aead_ivsize(tfm); + + cc_copy_sg_portion(dev, areq_ctx->backup_mac, req->src, + (skip - areq_ctx->req_authsize), skip, dir); +} + +/** + * cc_get_sgl_nents() - Get scatterlist number of entries. * * @sg_list: SG list * @nbytes: [IN] Total SGL data bytes. * @lbytes: [OUT] Returns the amount of bytes at the last entry */ -static unsigned int ssi_buffer_mgr_get_sgl_nents( - struct device *dev, struct scatterlist *sg_list, - unsigned int nbytes, u32 *lbytes, bool *is_chained) +static unsigned int cc_get_sgl_nents(struct device *dev, + struct scatterlist *sg_list, + unsigned int nbytes, u32 *lbytes, + bool *is_chained) { unsigned int nents = 0; - while (nbytes != 0) { - if (sg_list->length != 0) { + while (nbytes && sg_list) { + if (sg_list->length) { nents++; /* get the number of bytes in the last entry */ *lbytes = nbytes; - nbytes -= (sg_list->length > nbytes) ? nbytes : sg_list->length; + nbytes -= (sg_list->length > nbytes) ? + nbytes : sg_list->length; sg_list = sg_next(sg_list); } else { sg_list = (struct scatterlist *)sg_page(sg_list); @@ -95,11 +107,11 @@ static unsigned int ssi_buffer_mgr_get_sgl_nents( } /** - * ssi_buffer_mgr_zero_sgl() - Zero scatter scatter list data. + * cc_zero_sgl() - Zero scatter scatter list data. * * @sgl: */ -void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len) +void cc_zero_sgl(struct scatterlist *sgl, u32 data_len) { struct scatterlist *current_sg = sgl; int sg_index = 0; @@ -116,7 +128,7 @@ void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len) } /** - * ssi_buffer_mgr_copy_scatterlist_portion() - Copy scatter list data, + * cc_copy_sg_portion() - Copy scatter list data, * from to_skip to end, to dest and vice versa * * @dest: @@ -125,21 +137,19 @@ void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len) * @end: * @direct: */ -void ssi_buffer_mgr_copy_scatterlist_portion( - struct device *dev, u8 *dest, - struct scatterlist *sg, u32 to_skip, - u32 end, enum ssi_sg_cpy_direct direct) +void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg, + u32 to_skip, u32 end, enum cc_sg_cpy_direct direct) { u32 nents, lbytes; - nents = ssi_buffer_mgr_get_sgl_nents(dev, sg, end, &lbytes, NULL); + nents = cc_get_sgl_nents(dev, sg, end, &lbytes, NULL); sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip, - (direct == SSI_SG_TO_BUF)); + (direct == CC_SG_TO_BUF)); } -static inline int ssi_buffer_mgr_render_buff_to_mlli( - struct device *dev, dma_addr_t buff_dma, u32 buff_size, - u32 *curr_nents, u32 **mlli_entry_pp) +static int cc_render_buff_to_mlli(struct device *dev, dma_addr_t buff_dma, + u32 buff_size, u32 *curr_nents, + u32 **mlli_entry_pp) { u32 *mlli_entry_p = *mlli_entry_pp; u32 new_nents; @@ -173,26 +183,25 @@ static inline int ssi_buffer_mgr_render_buff_to_mlli( return 0; } -static inline int ssi_buffer_mgr_render_scatterlist_to_mlli( - struct device *dev, struct scatterlist *sgl, - u32 sgl_data_len, u32 sgl_offset, u32 *curr_nents, - u32 **mlli_entry_pp) +static int cc_render_sg_to_mlli(struct device *dev, struct scatterlist *sgl, + u32 sgl_data_len, u32 sgl_offset, + u32 *curr_nents, u32 **mlli_entry_pp) { struct scatterlist *curr_sgl = sgl; u32 *mlli_entry_p = *mlli_entry_pp; s32 rc = 0; - for ( ; (curr_sgl) && (sgl_data_len != 0); + for ( ; (curr_sgl && sgl_data_len); curr_sgl = sg_next(curr_sgl)) { u32 entry_data_len = (sgl_data_len > sg_dma_len(curr_sgl) - sgl_offset) ? sg_dma_len(curr_sgl) - sgl_offset : sgl_data_len; sgl_data_len -= entry_data_len; - rc = ssi_buffer_mgr_render_buff_to_mlli( - dev, sg_dma_address(curr_sgl) + sgl_offset, - entry_data_len, curr_nents, &mlli_entry_p); - if (rc != 0) + rc = cc_render_buff_to_mlli(dev, sg_dma_address(curr_sgl) + + sgl_offset, entry_data_len, + curr_nents, &mlli_entry_p); + if (rc) return rc; sgl_offset = 0; @@ -201,10 +210,8 @@ static inline int ssi_buffer_mgr_render_scatterlist_to_mlli( return 0; } -static int ssi_buffer_mgr_generate_mlli( - struct device *dev, - struct buffer_array *sg_data, - struct mlli_params *mlli_params) +static int cc_generate_mlli(struct device *dev, struct buffer_array *sg_data, + struct mlli_params *mlli_params, gfp_t flags) { u32 *mlli_p; u32 total_nents = 0, prev_total_nents = 0; @@ -213,10 +220,10 @@ static int ssi_buffer_mgr_generate_mlli( dev_dbg(dev, "NUM of SG's = %d\n", sg_data->num_of_buffers); /* Allocate memory from the pointed pool */ - mlli_params->mlli_virt_addr = dma_pool_alloc( - mlli_params->curr_pool, GFP_KERNEL, - &mlli_params->mlli_dma_addr); - if (unlikely(!mlli_params->mlli_virt_addr)) { + mlli_params->mlli_virt_addr = + dma_pool_alloc(mlli_params->curr_pool, flags, + &mlli_params->mlli_dma_addr); + if (!mlli_params->mlli_virt_addr) { dev_err(dev, "dma_pool_alloc() failed\n"); rc = -ENOMEM; goto build_mlli_exit; @@ -225,17 +232,19 @@ static int ssi_buffer_mgr_generate_mlli( mlli_p = (u32 *)mlli_params->mlli_virt_addr; /* go over all SG's and link it to one MLLI table */ for (i = 0; i < sg_data->num_of_buffers; i++) { + union buffer_array_entry *entry = &sg_data->entry[i]; + u32 tot_len = sg_data->total_data_len[i]; + u32 offset = sg_data->offset[i]; + if (sg_data->type[i] == DMA_SGL_TYPE) - rc = ssi_buffer_mgr_render_scatterlist_to_mlli( - dev, sg_data->entry[i].sgl, - sg_data->total_data_len[i], sg_data->offset[i], - &total_nents, &mlli_p); + rc = cc_render_sg_to_mlli(dev, entry->sgl, tot_len, + offset, &total_nents, + &mlli_p); else /*DMA_BUFF_TYPE*/ - rc = ssi_buffer_mgr_render_buff_to_mlli( - dev, sg_data->entry[i].buffer_dma, - sg_data->total_data_len[i], &total_nents, - &mlli_p); - if (rc != 0) + rc = cc_render_buff_to_mlli(dev, entry->buffer_dma, + tot_len, &total_nents, + &mlli_p); + if (rc) return rc; /* set last bit in the current table */ @@ -260,10 +269,10 @@ build_mlli_exit: return rc; } -static inline void ssi_buffer_mgr_add_buffer_entry( - struct device *dev, struct buffer_array *sgl_data, - dma_addr_t buffer_dma, unsigned int buffer_len, - bool is_last_entry, u32 *mlli_nents) +static void cc_add_buffer_entry(struct device *dev, + struct buffer_array *sgl_data, + dma_addr_t buffer_dma, unsigned int buffer_len, + bool is_last_entry, u32 *mlli_nents) { unsigned int index = sgl_data->num_of_buffers; @@ -281,15 +290,10 @@ static inline void ssi_buffer_mgr_add_buffer_entry( sgl_data->num_of_buffers++; } -static inline void ssi_buffer_mgr_add_scatterlist_entry( - struct device *dev, - struct buffer_array *sgl_data, - unsigned int nents, - struct scatterlist *sgl, - unsigned int data_len, - unsigned int data_offset, - bool is_last_table, - u32 *mlli_nents) +static void cc_add_sg_entry(struct device *dev, struct buffer_array *sgl_data, + unsigned int nents, struct scatterlist *sgl, + unsigned int data_len, unsigned int data_offset, + bool is_last_table, u32 *mlli_nents) { unsigned int index = sgl_data->num_of_buffers; @@ -307,9 +311,8 @@ static inline void ssi_buffer_mgr_add_scatterlist_entry( sgl_data->num_of_buffers++; } -static int -ssi_buffer_mgr_dma_map_sg(struct device *dev, struct scatterlist *sg, u32 nents, - enum dma_data_direction direction) +static int cc_dma_map_sg(struct device *dev, struct scatterlist *sg, u32 nents, + enum dma_data_direction direction) { u32 i, j; struct scatterlist *l_sg = sg; @@ -317,7 +320,7 @@ ssi_buffer_mgr_dma_map_sg(struct device *dev, struct scatterlist *sg, u32 nents, for (i = 0; i < nents; i++) { if (!l_sg) break; - if (unlikely(dma_map_sg(dev, l_sg, 1, direction) != 1)) { + if (dma_map_sg(dev, l_sg, 1, direction) != 1) { dev_err(dev, "dma_map_page() sg buffer failed\n"); goto err; } @@ -336,17 +339,15 @@ err: return 0; } -static int ssi_buffer_mgr_map_scatterlist( - struct device *dev, struct scatterlist *sg, - unsigned int nbytes, int direction, - u32 *nents, u32 max_sg_nents, - u32 *lbytes, u32 *mapped_nents) +static int cc_map_sg(struct device *dev, struct scatterlist *sg, + unsigned int nbytes, int direction, u32 *nents, + u32 max_sg_nents, u32 *lbytes, u32 *mapped_nents) { bool is_chained = false; if (sg_is_last(sg)) { /* One entry only case -set to DLLI */ - if (unlikely(dma_map_sg(dev, sg, 1, direction) != 1)) { + if (dma_map_sg(dev, sg, 1, direction) != 1) { dev_err(dev, "dma_map_sg() single buffer failed\n"); return -ENOMEM; } @@ -357,8 +358,8 @@ static int ssi_buffer_mgr_map_scatterlist( *nents = 1; *mapped_nents = 1; } else { /*sg_is_last*/ - *nents = ssi_buffer_mgr_get_sgl_nents(dev, sg, nbytes, lbytes, - &is_chained); + *nents = cc_get_sgl_nents(dev, sg, nbytes, lbytes, + &is_chained); if (*nents > max_sg_nents) { *nents = 0; dev_err(dev, "Too many fragments. current %d max %d\n", @@ -370,7 +371,7 @@ static int ssi_buffer_mgr_map_scatterlist( * be changed from the original sgl nents */ *mapped_nents = dma_map_sg(dev, sg, *nents, direction); - if (unlikely(*mapped_nents == 0)) { + if (*mapped_nents == 0) { *nents = 0; dev_err(dev, "dma_map_sg() sg buffer failed\n"); return -ENOMEM; @@ -379,11 +380,9 @@ static int ssi_buffer_mgr_map_scatterlist( /*In this case the driver maps entry by entry so it * must have the same nents before and after map */ - *mapped_nents = ssi_buffer_mgr_dma_map_sg(dev, - sg, - *nents, - direction); - if (unlikely(*mapped_nents != *nents)) { + *mapped_nents = cc_dma_map_sg(dev, sg, *nents, + direction); + if (*mapped_nents != *nents) { *nents = *mapped_nents; dev_err(dev, "dma_map_sg() sg buffer failed\n"); return -ENOMEM; @@ -394,18 +393,16 @@ static int ssi_buffer_mgr_map_scatterlist( return 0; } -static inline int -ssi_aead_handle_config_buf(struct device *dev, - struct aead_req_ctx *areq_ctx, - u8 *config_data, - struct buffer_array *sg_data, - unsigned int assoclen) +static int +cc_set_aead_conf_buf(struct device *dev, struct aead_req_ctx *areq_ctx, + u8 *config_data, struct buffer_array *sg_data, + unsigned int assoclen) { dev_dbg(dev, " handle additional data config set to DLLI\n"); /* create sg for the current buffer */ - sg_init_one(&areq_ctx->ccm_adata_sg, config_data, AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size); - if (unlikely(dma_map_sg(dev, &areq_ctx->ccm_adata_sg, 1, - DMA_TO_DEVICE) != 1)) { + sg_init_one(&areq_ctx->ccm_adata_sg, config_data, + AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size); + if (dma_map_sg(dev, &areq_ctx->ccm_adata_sg, 1, DMA_TO_DEVICE) != 1) { dev_err(dev, "dma_map_sg() config buffer failed\n"); return -ENOMEM; } @@ -416,25 +413,21 @@ ssi_aead_handle_config_buf(struct device *dev, areq_ctx->ccm_adata_sg.offset, areq_ctx->ccm_adata_sg.length); /* prepare for case of MLLI */ if (assoclen > 0) { - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, 1, - &areq_ctx->ccm_adata_sg, - (AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size), - 0, false, NULL); + cc_add_sg_entry(dev, sg_data, 1, &areq_ctx->ccm_adata_sg, + (AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size), + 0, false, NULL); } return 0; } -static inline int ssi_ahash_handle_curr_buf(struct device *dev, - struct ahash_req_ctx *areq_ctx, - u8 *curr_buff, - u32 curr_buff_cnt, - struct buffer_array *sg_data) +static int cc_set_hash_buf(struct device *dev, struct ahash_req_ctx *areq_ctx, + u8 *curr_buff, u32 curr_buff_cnt, + struct buffer_array *sg_data) { dev_dbg(dev, " handle curr buff %x set to DLLI\n", curr_buff_cnt); /* create sg for the current buffer */ sg_init_one(areq_ctx->buff_sg, curr_buff, curr_buff_cnt); - if (unlikely(dma_map_sg(dev, areq_ctx->buff_sg, 1, - DMA_TO_DEVICE) != 1)) { + if (dma_map_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE) != 1) { dev_err(dev, "dma_map_sg() src buffer failed\n"); return -ENOMEM; } @@ -442,25 +435,22 @@ static inline int ssi_ahash_handle_curr_buf(struct device *dev, &sg_dma_address(areq_ctx->buff_sg), sg_page(areq_ctx->buff_sg), sg_virt(areq_ctx->buff_sg), areq_ctx->buff_sg->offset, areq_ctx->buff_sg->length); - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_DLLI; areq_ctx->curr_sg = areq_ctx->buff_sg; areq_ctx->in_nents = 0; /* prepare for case of MLLI */ - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, 1, areq_ctx->buff_sg, - curr_buff_cnt, 0, false, NULL); + cc_add_sg_entry(dev, sg_data, 1, areq_ctx->buff_sg, curr_buff_cnt, 0, + false, NULL); return 0; } -void ssi_buffer_mgr_unmap_blkcipher_request( - struct device *dev, - void *ctx, - unsigned int ivsize, - struct scatterlist *src, - struct scatterlist *dst) +void cc_unmap_blkcipher_request(struct device *dev, void *ctx, + unsigned int ivsize, struct scatterlist *src, + struct scatterlist *dst) { struct blkcipher_req_ctx *req_ctx = (struct blkcipher_req_ctx *)ctx; - if (likely(req_ctx->gen_ctx.iv_dma_addr != 0)) { + if (req_ctx->gen_ctx.iv_dma_addr) { dev_dbg(dev, "Unmapped iv: iv_dma_addr=%pad iv_size=%u\n", &req_ctx->gen_ctx.iv_dma_addr, ivsize); dma_unmap_single(dev, req_ctx->gen_ctx.iv_dma_addr, @@ -469,7 +459,8 @@ void ssi_buffer_mgr_unmap_blkcipher_request( DMA_TO_DEVICE); } /* Release pool */ - if (req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI) { + if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI && + req_ctx->mlli_params.mlli_virt_addr) { dma_pool_free(req_ctx->mlli_params.curr_pool, req_ctx->mlli_params.mlli_virt_addr, req_ctx->mlli_params.mlli_dma_addr); @@ -484,14 +475,10 @@ void ssi_buffer_mgr_unmap_blkcipher_request( } } -int ssi_buffer_mgr_map_blkcipher_request( - struct ssi_drvdata *drvdata, - void *ctx, - unsigned int ivsize, - unsigned int nbytes, - void *info, - struct scatterlist *src, - struct scatterlist *dst) +int cc_map_blkcipher_request(struct cc_drvdata *drvdata, void *ctx, + unsigned int ivsize, unsigned int nbytes, + void *info, struct scatterlist *src, + struct scatterlist *dst, gfp_t flags) { struct blkcipher_req_ctx *req_ctx = (struct blkcipher_req_ctx *)ctx; struct mlli_params *mlli_params = &req_ctx->mlli_params; @@ -502,20 +489,19 @@ int ssi_buffer_mgr_map_blkcipher_request( int rc = 0; u32 mapped_nents = 0; - req_ctx->dma_buf_type = SSI_DMA_BUF_DLLI; + req_ctx->dma_buf_type = CC_DMA_BUF_DLLI; mlli_params->curr_pool = NULL; sg_data.num_of_buffers = 0; /* Map IV buffer */ - if (likely(ivsize != 0)) { + if (ivsize) { dump_byte_array("iv", (u8 *)info, ivsize); req_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, (void *)info, ivsize, req_ctx->is_giv ? DMA_BIDIRECTIONAL : DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, - req_ctx->gen_ctx.iv_dma_addr))) { + if (dma_mapping_error(dev, req_ctx->gen_ctx.iv_dma_addr)) { dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n", ivsize, info); return -ENOMEM; @@ -527,121 +513,107 @@ int ssi_buffer_mgr_map_blkcipher_request( } /* Map the src SGL */ - rc = ssi_buffer_mgr_map_scatterlist(dev, src, - nbytes, DMA_BIDIRECTIONAL, - &req_ctx->in_nents, - LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, - &mapped_nents); - if (unlikely(rc != 0)) { + rc = cc_map_sg(dev, src, nbytes, DMA_BIDIRECTIONAL, &req_ctx->in_nents, + LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, &mapped_nents); + if (rc) { rc = -ENOMEM; goto ablkcipher_exit; } if (mapped_nents > 1) - req_ctx->dma_buf_type = SSI_DMA_BUF_MLLI; + req_ctx->dma_buf_type = CC_DMA_BUF_MLLI; - if (unlikely(src == dst)) { + if (src == dst) { /* Handle inplace operation */ - if (unlikely(req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI)) { + if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) { req_ctx->out_nents = 0; - ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data, - req_ctx->in_nents, - src, nbytes, 0, - true, - &req_ctx->in_mlli_nents); + cc_add_sg_entry(dev, &sg_data, req_ctx->in_nents, src, + nbytes, 0, true, + &req_ctx->in_mlli_nents); } } else { /* Map the dst sg */ - if (unlikely(ssi_buffer_mgr_map_scatterlist( - dev, dst, nbytes, - DMA_BIDIRECTIONAL, &req_ctx->out_nents, - LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, - &mapped_nents))){ + if (cc_map_sg(dev, dst, nbytes, DMA_BIDIRECTIONAL, + &req_ctx->out_nents, LLI_MAX_NUM_OF_DATA_ENTRIES, + &dummy, &mapped_nents)) { rc = -ENOMEM; goto ablkcipher_exit; } if (mapped_nents > 1) - req_ctx->dma_buf_type = SSI_DMA_BUF_MLLI; - - if (unlikely((req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI))) { - ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data, - req_ctx->in_nents, - src, nbytes, 0, - true, - &req_ctx->in_mlli_nents); - ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data, - req_ctx->out_nents, - dst, nbytes, 0, - true, - &req_ctx->out_mlli_nents); + req_ctx->dma_buf_type = CC_DMA_BUF_MLLI; + + if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) { + cc_add_sg_entry(dev, &sg_data, req_ctx->in_nents, src, + nbytes, 0, true, + &req_ctx->in_mlli_nents); + cc_add_sg_entry(dev, &sg_data, req_ctx->out_nents, dst, + nbytes, 0, true, + &req_ctx->out_mlli_nents); } } - if (unlikely(req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI)) { + if (req_ctx->dma_buf_type == CC_DMA_BUF_MLLI) { mlli_params->curr_pool = buff_mgr->mlli_buffs_pool; - rc = ssi_buffer_mgr_generate_mlli(dev, &sg_data, mlli_params); - if (unlikely(rc != 0)) + rc = cc_generate_mlli(dev, &sg_data, mlli_params, flags); + if (rc) goto ablkcipher_exit; } dev_dbg(dev, "areq_ctx->dma_buf_type = %s\n", - GET_DMA_BUFFER_TYPE(req_ctx->dma_buf_type)); + cc_dma_buf_type(req_ctx->dma_buf_type)); return 0; ablkcipher_exit: - ssi_buffer_mgr_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); + cc_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); return rc; } -void ssi_buffer_mgr_unmap_aead_request( - struct device *dev, struct aead_request *req) +void cc_unmap_aead_request(struct device *dev, struct aead_request *req) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); unsigned int hw_iv_size = areq_ctx->hw_iv_size; struct crypto_aead *tfm = crypto_aead_reqtfm(req); - struct ssi_drvdata *drvdata = dev_get_drvdata(dev); + struct cc_drvdata *drvdata = dev_get_drvdata(dev); u32 dummy; bool chained; u32 size_to_unmap = 0; - if (areq_ctx->mac_buf_dma_addr != 0) { + if (areq_ctx->mac_buf_dma_addr) { dma_unmap_single(dev, areq_ctx->mac_buf_dma_addr, MAX_MAC_SIZE, DMA_BIDIRECTIONAL); } -#if SSI_CC_HAS_AES_GCM if (areq_ctx->cipher_mode == DRV_CIPHER_GCTR) { - if (areq_ctx->hkey_dma_addr != 0) { + if (areq_ctx->hkey_dma_addr) { dma_unmap_single(dev, areq_ctx->hkey_dma_addr, AES_BLOCK_SIZE, DMA_BIDIRECTIONAL); } - if (areq_ctx->gcm_block_len_dma_addr != 0) { + if (areq_ctx->gcm_block_len_dma_addr) { dma_unmap_single(dev, areq_ctx->gcm_block_len_dma_addr, AES_BLOCK_SIZE, DMA_TO_DEVICE); } - if (areq_ctx->gcm_iv_inc1_dma_addr != 0) { + if (areq_ctx->gcm_iv_inc1_dma_addr) { dma_unmap_single(dev, areq_ctx->gcm_iv_inc1_dma_addr, AES_BLOCK_SIZE, DMA_TO_DEVICE); } - if (areq_ctx->gcm_iv_inc2_dma_addr != 0) { + if (areq_ctx->gcm_iv_inc2_dma_addr) { dma_unmap_single(dev, areq_ctx->gcm_iv_inc2_dma_addr, AES_BLOCK_SIZE, DMA_TO_DEVICE); } } -#endif if (areq_ctx->ccm_hdr_size != ccm_header_size_null) { - if (areq_ctx->ccm_iv0_dma_addr != 0) { + if (areq_ctx->ccm_iv0_dma_addr) { dma_unmap_single(dev, areq_ctx->ccm_iv0_dma_addr, AES_BLOCK_SIZE, DMA_TO_DEVICE); } dma_unmap_sg(dev, &areq_ctx->ccm_adata_sg, 1, DMA_TO_DEVICE); } - if (areq_ctx->gen_ctx.iv_dma_addr != 0) { + if (areq_ctx->gen_ctx.iv_dma_addr) { dma_unmap_single(dev, areq_ctx->gen_ctx.iv_dma_addr, hw_iv_size, DMA_BIDIRECTIONAL); } @@ -668,46 +640,37 @@ void ssi_buffer_mgr_unmap_aead_request( size_to_unmap += crypto_aead_ivsize(tfm); dma_unmap_sg(dev, req->src, - ssi_buffer_mgr_get_sgl_nents(dev, req->src, size_to_unmap, - &dummy, &chained), + cc_get_sgl_nents(dev, req->src, size_to_unmap, + &dummy, &chained), DMA_BIDIRECTIONAL); - if (unlikely(req->src != req->dst)) { + if (req->src != req->dst) { dev_dbg(dev, "Unmapping dst sgl: req->dst=%pK\n", sg_virt(req->dst)); dma_unmap_sg(dev, req->dst, - ssi_buffer_mgr_get_sgl_nents(dev, req->dst, - size_to_unmap, - &dummy, &chained), + cc_get_sgl_nents(dev, req->dst, size_to_unmap, + &dummy, &chained), DMA_BIDIRECTIONAL); } if (drvdata->coherent && - (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) && - likely(req->src == req->dst)) { - u32 size_to_skip = req->assoclen; - - if (areq_ctx->is_gcm4543) - size_to_skip += crypto_aead_ivsize(tfm); - - /* copy mac to a temporary location to deal with possible - * data memory overriding that caused by cache coherence problem. + areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT && + req->src == req->dst) { + /* copy back mac from temporary location to deal with possible + * data memory overriding that caused by cache coherence + * problem. */ - ssi_buffer_mgr_copy_scatterlist_portion( - dev, areq_ctx->backup_mac, req->src, - size_to_skip + req->cryptlen - areq_ctx->req_authsize, - size_to_skip + req->cryptlen, SSI_SG_FROM_BUF); + cc_copy_mac(dev, req, CC_SG_FROM_BUF); } } -static inline int ssi_buffer_mgr_get_aead_icv_nents( - struct device *dev, - struct scatterlist *sgl, - unsigned int sgl_nents, - unsigned int authsize, - u32 last_entry_data_size, - bool *is_icv_fragmented) +static int cc_get_aead_icv_nents(struct device *dev, struct scatterlist *sgl, + unsigned int sgl_nents, unsigned int authsize, + u32 last_entry_data_size, + bool *is_icv_fragmented) { unsigned int icv_max_size = 0; - unsigned int icv_required_size = authsize > last_entry_data_size ? (authsize - last_entry_data_size) : authsize; + unsigned int icv_required_size = authsize > last_entry_data_size ? + (authsize - last_entry_data_size) : + authsize; unsigned int nents; unsigned int i; @@ -726,10 +689,12 @@ static inline int ssi_buffer_mgr_get_aead_icv_nents( icv_max_size = sgl->length; if (last_entry_data_size > authsize) { - nents = 0; /* ICV attached to data in last entry (not fragmented!) */ + /* ICV attached to data in last entry (not fragmented!) */ + nents = 0; *is_icv_fragmented = false; } else if (last_entry_data_size == authsize) { - nents = 1; /* ICV placed in whole last entry (not fragmented!) */ + /* ICV placed in whole last entry (not fragmented!) */ + nents = 1; *is_icv_fragmented = false; } else if (icv_max_size > icv_required_size) { nents = 1; @@ -748,25 +713,25 @@ static inline int ssi_buffer_mgr_get_aead_icv_nents( return nents; } -static inline int ssi_buffer_mgr_aead_chain_iv( - struct ssi_drvdata *drvdata, - struct aead_request *req, - struct buffer_array *sg_data, - bool is_last, bool do_chain) +static int cc_aead_chain_iv(struct cc_drvdata *drvdata, + struct aead_request *req, + struct buffer_array *sg_data, + bool is_last, bool do_chain) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); unsigned int hw_iv_size = areq_ctx->hw_iv_size; struct device *dev = drvdata_to_dev(drvdata); int rc = 0; - if (unlikely(!req->iv)) { + if (!req->iv) { areq_ctx->gen_ctx.iv_dma_addr = 0; goto chain_iv_exit; } - areq_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, req->iv, hw_iv_size, + areq_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, req->iv, + hw_iv_size, DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(dev, areq_ctx->gen_ctx.iv_dma_addr))) { + if (dma_mapping_error(dev, areq_ctx->gen_ctx.iv_dma_addr)) { dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n", hw_iv_size, req->iv); rc = -ENOMEM; @@ -775,28 +740,27 @@ static inline int ssi_buffer_mgr_aead_chain_iv( dev_dbg(dev, "Mapped iv %u B at va=%pK to dma=%pad\n", hw_iv_size, req->iv, &areq_ctx->gen_ctx.iv_dma_addr); - if (do_chain && areq_ctx->plaintext_authenticate_only) { // TODO: what about CTR?? ask Ron + // TODO: what about CTR?? ask Ron + if (do_chain && areq_ctx->plaintext_authenticate_only) { struct crypto_aead *tfm = crypto_aead_reqtfm(req); unsigned int iv_size_to_authenc = crypto_aead_ivsize(tfm); unsigned int iv_ofs = GCM_BLOCK_RFC4_IV_OFFSET; /* Chain to given list */ - ssi_buffer_mgr_add_buffer_entry( - dev, sg_data, - areq_ctx->gen_ctx.iv_dma_addr + iv_ofs, - iv_size_to_authenc, is_last, - &areq_ctx->assoc.mlli_nents); - areq_ctx->assoc_buff_type = SSI_DMA_BUF_MLLI; + cc_add_buffer_entry(dev, sg_data, + (areq_ctx->gen_ctx.iv_dma_addr + iv_ofs), + iv_size_to_authenc, is_last, + &areq_ctx->assoc.mlli_nents); + areq_ctx->assoc_buff_type = CC_DMA_BUF_MLLI; } chain_iv_exit: return rc; } -static inline int ssi_buffer_mgr_aead_chain_assoc( - struct ssi_drvdata *drvdata, - struct aead_request *req, - struct buffer_array *sg_data, - bool is_last, bool do_chain) +static int cc_aead_chain_assoc(struct cc_drvdata *drvdata, + struct aead_request *req, + struct buffer_array *sg_data, + bool is_last, bool do_chain) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); int rc = 0; @@ -815,12 +779,12 @@ static inline int ssi_buffer_mgr_aead_chain_assoc( goto chain_assoc_exit; } - if (unlikely(req->assoclen == 0)) { - areq_ctx->assoc_buff_type = SSI_DMA_BUF_NULL; + if (req->assoclen == 0) { + areq_ctx->assoc_buff_type = CC_DMA_BUF_NULL; areq_ctx->assoc.nents = 0; areq_ctx->assoc.mlli_nents = 0; dev_dbg(dev, "Chain assoc of length 0: buff_type=%s nents=%u\n", - GET_DMA_BUFFER_TYPE(areq_ctx->assoc_buff_type), + cc_dma_buf_type(areq_ctx->assoc_buff_type), areq_ctx->assoc.nents); goto chain_assoc_exit; } @@ -828,12 +792,15 @@ static inline int ssi_buffer_mgr_aead_chain_assoc( //iterate over the sgl to see how many entries are for associated data //it is assumed that if we reach here , the sgl is already mapped sg_index = current_sg->length; - if (sg_index > size_of_assoc) { //the first entry in the scatter list contains all the associated data + //the first entry in the scatter list contains all the associated data + if (sg_index > size_of_assoc) { mapped_nents++; } else { while (sg_index <= size_of_assoc) { current_sg = sg_next(current_sg); - //if have reached the end of the sgl, then this is unexpected + /* if have reached the end of the sgl, then this is + * unexpected + */ if (!current_sg) { dev_err(dev, "reached end of sg list. unexpected\n"); return -EINVAL; @@ -842,7 +809,7 @@ static inline int ssi_buffer_mgr_aead_chain_assoc( mapped_nents++; } } - if (unlikely(mapped_nents > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES)) { + if (mapped_nents > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES) { dev_err(dev, "Too many fragments. current %d max %d\n", mapped_nents, LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES); return -ENOMEM; @@ -853,8 +820,7 @@ static inline int ssi_buffer_mgr_aead_chain_assoc( * ccm header configurations */ if (areq_ctx->ccm_hdr_size != ccm_header_size_null) { - if (unlikely((mapped_nents + 1) > - LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES)) { + if ((mapped_nents + 1) > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES) { dev_err(dev, "CCM case.Too many fragments. Current %d max %d\n", (areq_ctx->assoc.nents + 1), LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES); @@ -863,227 +829,175 @@ static inline int ssi_buffer_mgr_aead_chain_assoc( } } - if (likely(mapped_nents == 1) && - (areq_ctx->ccm_hdr_size == ccm_header_size_null)) - areq_ctx->assoc_buff_type = SSI_DMA_BUF_DLLI; + if (mapped_nents == 1 && areq_ctx->ccm_hdr_size == ccm_header_size_null) + areq_ctx->assoc_buff_type = CC_DMA_BUF_DLLI; else - areq_ctx->assoc_buff_type = SSI_DMA_BUF_MLLI; + areq_ctx->assoc_buff_type = CC_DMA_BUF_MLLI; - if (unlikely((do_chain) || - (areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI))) { + if (do_chain || areq_ctx->assoc_buff_type == CC_DMA_BUF_MLLI) { dev_dbg(dev, "Chain assoc: buff_type=%s nents=%u\n", - GET_DMA_BUFFER_TYPE(areq_ctx->assoc_buff_type), + cc_dma_buf_type(areq_ctx->assoc_buff_type), areq_ctx->assoc.nents); - ssi_buffer_mgr_add_scatterlist_entry( - dev, sg_data, areq_ctx->assoc.nents, - req->src, req->assoclen, 0, is_last, - &areq_ctx->assoc.mlli_nents); - areq_ctx->assoc_buff_type = SSI_DMA_BUF_MLLI; + cc_add_sg_entry(dev, sg_data, areq_ctx->assoc.nents, req->src, + req->assoclen, 0, is_last, + &areq_ctx->assoc.mlli_nents); + areq_ctx->assoc_buff_type = CC_DMA_BUF_MLLI; } chain_assoc_exit: return rc; } -static inline void ssi_buffer_mgr_prepare_aead_data_dlli( - struct aead_request *req, - u32 *src_last_bytes, u32 *dst_last_bytes) +static void cc_prepare_aead_data_dlli(struct aead_request *req, + u32 *src_last_bytes, u32 *dst_last_bytes) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); enum drv_crypto_direction direct = areq_ctx->gen_ctx.op_type; unsigned int authsize = areq_ctx->req_authsize; areq_ctx->is_icv_fragmented = false; - if (likely(req->src == req->dst)) { + if (req->src == req->dst) { /*INPLACE*/ - areq_ctx->icv_dma_addr = sg_dma_address( - areq_ctx->src_sgl) + + areq_ctx->icv_dma_addr = sg_dma_address(areq_ctx->src_sgl) + (*src_last_bytes - authsize); - areq_ctx->icv_virt_addr = sg_virt( - areq_ctx->src_sgl) + + areq_ctx->icv_virt_addr = sg_virt(areq_ctx->src_sgl) + (*src_last_bytes - authsize); } else if (direct == DRV_CRYPTO_DIRECTION_DECRYPT) { /*NON-INPLACE and DECRYPT*/ - areq_ctx->icv_dma_addr = sg_dma_address( - areq_ctx->src_sgl) + + areq_ctx->icv_dma_addr = sg_dma_address(areq_ctx->src_sgl) + (*src_last_bytes - authsize); - areq_ctx->icv_virt_addr = sg_virt( - areq_ctx->src_sgl) + + areq_ctx->icv_virt_addr = sg_virt(areq_ctx->src_sgl) + (*src_last_bytes - authsize); } else { /*NON-INPLACE and ENCRYPT*/ - areq_ctx->icv_dma_addr = sg_dma_address( - areq_ctx->dst_sgl) + + areq_ctx->icv_dma_addr = sg_dma_address(areq_ctx->dst_sgl) + (*dst_last_bytes - authsize); - areq_ctx->icv_virt_addr = sg_virt( - areq_ctx->dst_sgl) + + areq_ctx->icv_virt_addr = sg_virt(areq_ctx->dst_sgl) + (*dst_last_bytes - authsize); } } -static inline int ssi_buffer_mgr_prepare_aead_data_mlli( - struct ssi_drvdata *drvdata, - struct aead_request *req, - struct buffer_array *sg_data, - u32 *src_last_bytes, u32 *dst_last_bytes, - bool is_last_table) +static int cc_prepare_aead_data_mlli(struct cc_drvdata *drvdata, + struct aead_request *req, + struct buffer_array *sg_data, + u32 *src_last_bytes, u32 *dst_last_bytes, + bool is_last_table) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); enum drv_crypto_direction direct = areq_ctx->gen_ctx.op_type; unsigned int authsize = areq_ctx->req_authsize; int rc = 0, icv_nents; - struct crypto_aead *tfm = crypto_aead_reqtfm(req); struct device *dev = drvdata_to_dev(drvdata); + struct scatterlist *sg; - if (likely(req->src == req->dst)) { + if (req->src == req->dst) { /*INPLACE*/ - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, - areq_ctx->src.nents, - areq_ctx->src_sgl, - areq_ctx->cryptlen, - areq_ctx->src_offset, - is_last_table, - &areq_ctx->src.mlli_nents); - - icv_nents = ssi_buffer_mgr_get_aead_icv_nents(dev, - areq_ctx->src_sgl, - areq_ctx->src.nents, - authsize, - *src_last_bytes, - &areq_ctx->is_icv_fragmented); - if (unlikely(icv_nents < 0)) { + cc_add_sg_entry(dev, sg_data, areq_ctx->src.nents, + areq_ctx->src_sgl, areq_ctx->cryptlen, + areq_ctx->src_offset, is_last_table, + &areq_ctx->src.mlli_nents); + + icv_nents = cc_get_aead_icv_nents(dev, areq_ctx->src_sgl, + areq_ctx->src.nents, + authsize, *src_last_bytes, + &areq_ctx->is_icv_fragmented); + if (icv_nents < 0) { rc = -ENOTSUPP; goto prepare_data_mlli_exit; } - if (unlikely(areq_ctx->is_icv_fragmented)) { + if (areq_ctx->is_icv_fragmented) { /* Backup happens only when ICV is fragmented, ICV - * verification is made by CPU compare in order to simplify - * MAC verification upon request completion + * verification is made by CPU compare in order to + * simplify MAC verification upon request completion */ if (direct == DRV_CRYPTO_DIRECTION_DECRYPT) { - if (!drvdata->coherent) { /* In coherent platforms (e.g. ACP) * already copying ICV for any * INPLACE-DECRYPT operation, hence * we must neglect this code. */ - u32 skip = req->assoclen; - - if (areq_ctx->is_gcm4543) - skip += crypto_aead_ivsize(tfm); - - ssi_buffer_mgr_copy_scatterlist_portion( - dev, areq_ctx->backup_mac, - req->src, - (skip + req->cryptlen - - areq_ctx->req_authsize), - skip + req->cryptlen, - SSI_SG_TO_BUF); - } + if (!drvdata->coherent) + cc_copy_mac(dev, req, CC_SG_TO_BUF); + areq_ctx->icv_virt_addr = areq_ctx->backup_mac; } else { areq_ctx->icv_virt_addr = areq_ctx->mac_buf; - areq_ctx->icv_dma_addr = areq_ctx->mac_buf_dma_addr; + areq_ctx->icv_dma_addr = + areq_ctx->mac_buf_dma_addr; } } else { /* Contig. ICV */ + sg = &areq_ctx->src_sgl[areq_ctx->src.nents - 1]; /*Should hanlde if the sg is not contig.*/ - areq_ctx->icv_dma_addr = sg_dma_address( - &areq_ctx->src_sgl[areq_ctx->src.nents - 1]) + + areq_ctx->icv_dma_addr = sg_dma_address(sg) + (*src_last_bytes - authsize); - areq_ctx->icv_virt_addr = sg_virt( - &areq_ctx->src_sgl[areq_ctx->src.nents - 1]) + + areq_ctx->icv_virt_addr = sg_virt(sg) + (*src_last_bytes - authsize); } } else if (direct == DRV_CRYPTO_DIRECTION_DECRYPT) { /*NON-INPLACE and DECRYPT*/ - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, - areq_ctx->src.nents, - areq_ctx->src_sgl, - areq_ctx->cryptlen, - areq_ctx->src_offset, - is_last_table, - &areq_ctx->src.mlli_nents); - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, - areq_ctx->dst.nents, - areq_ctx->dst_sgl, - areq_ctx->cryptlen, - areq_ctx->dst_offset, - is_last_table, - &areq_ctx->dst.mlli_nents); - - icv_nents = ssi_buffer_mgr_get_aead_icv_nents(dev, - areq_ctx->src_sgl, - areq_ctx->src.nents, - authsize, - *src_last_bytes, - &areq_ctx->is_icv_fragmented); - if (unlikely(icv_nents < 0)) { + cc_add_sg_entry(dev, sg_data, areq_ctx->src.nents, + areq_ctx->src_sgl, areq_ctx->cryptlen, + areq_ctx->src_offset, is_last_table, + &areq_ctx->src.mlli_nents); + cc_add_sg_entry(dev, sg_data, areq_ctx->dst.nents, + areq_ctx->dst_sgl, areq_ctx->cryptlen, + areq_ctx->dst_offset, is_last_table, + &areq_ctx->dst.mlli_nents); + + icv_nents = cc_get_aead_icv_nents(dev, areq_ctx->src_sgl, + areq_ctx->src.nents, + authsize, *src_last_bytes, + &areq_ctx->is_icv_fragmented); + if (icv_nents < 0) { rc = -ENOTSUPP; goto prepare_data_mlli_exit; } - if (unlikely(areq_ctx->is_icv_fragmented)) { - /* Backup happens only when ICV is fragmented, ICV - * verification is made by CPU compare in order to simplify - * MAC verification upon request completion - */ - u32 size_to_skip = req->assoclen; - - if (areq_ctx->is_gcm4543) - size_to_skip += crypto_aead_ivsize(tfm); - - ssi_buffer_mgr_copy_scatterlist_portion( - dev, areq_ctx->backup_mac, req->src, - size_to_skip + req->cryptlen - areq_ctx->req_authsize, - size_to_skip + req->cryptlen, SSI_SG_TO_BUF); + /* Backup happens only when ICV is fragmented, ICV + * verification is made by CPU compare in order to simplify + * MAC verification upon request completion + */ + if (areq_ctx->is_icv_fragmented) { + cc_copy_mac(dev, req, CC_SG_TO_BUF); areq_ctx->icv_virt_addr = areq_ctx->backup_mac; + } else { /* Contig. ICV */ + sg = &areq_ctx->src_sgl[areq_ctx->src.nents - 1]; /*Should hanlde if the sg is not contig.*/ - areq_ctx->icv_dma_addr = sg_dma_address( - &areq_ctx->src_sgl[areq_ctx->src.nents - 1]) + + areq_ctx->icv_dma_addr = sg_dma_address(sg) + (*src_last_bytes - authsize); - areq_ctx->icv_virt_addr = sg_virt( - &areq_ctx->src_sgl[areq_ctx->src.nents - 1]) + + areq_ctx->icv_virt_addr = sg_virt(sg) + (*src_last_bytes - authsize); } } else { /*NON-INPLACE and ENCRYPT*/ - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, - areq_ctx->dst.nents, - areq_ctx->dst_sgl, - areq_ctx->cryptlen, - areq_ctx->dst_offset, - is_last_table, - &areq_ctx->dst.mlli_nents); - ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, - areq_ctx->src.nents, - areq_ctx->src_sgl, - areq_ctx->cryptlen, - areq_ctx->src_offset, - is_last_table, - &areq_ctx->src.mlli_nents); - - icv_nents = ssi_buffer_mgr_get_aead_icv_nents(dev, - areq_ctx->dst_sgl, - areq_ctx->dst.nents, - authsize, - *dst_last_bytes, - &areq_ctx->is_icv_fragmented); - if (unlikely(icv_nents < 0)) { + cc_add_sg_entry(dev, sg_data, areq_ctx->dst.nents, + areq_ctx->dst_sgl, areq_ctx->cryptlen, + areq_ctx->dst_offset, is_last_table, + &areq_ctx->dst.mlli_nents); + cc_add_sg_entry(dev, sg_data, areq_ctx->src.nents, + areq_ctx->src_sgl, areq_ctx->cryptlen, + areq_ctx->src_offset, is_last_table, + &areq_ctx->src.mlli_nents); + + icv_nents = cc_get_aead_icv_nents(dev, areq_ctx->dst_sgl, + areq_ctx->dst.nents, + authsize, *dst_last_bytes, + &areq_ctx->is_icv_fragmented); + if (icv_nents < 0) { rc = -ENOTSUPP; goto prepare_data_mlli_exit; } - if (likely(!areq_ctx->is_icv_fragmented)) { + if (!areq_ctx->is_icv_fragmented) { + sg = &areq_ctx->dst_sgl[areq_ctx->dst.nents - 1]; /* Contig. ICV */ - areq_ctx->icv_dma_addr = sg_dma_address( - &areq_ctx->dst_sgl[areq_ctx->dst.nents - 1]) + + areq_ctx->icv_dma_addr = sg_dma_address(sg) + (*dst_last_bytes - authsize); - areq_ctx->icv_virt_addr = sg_virt( - &areq_ctx->dst_sgl[areq_ctx->dst.nents - 1]) + + areq_ctx->icv_virt_addr = sg_virt(sg) + (*dst_last_bytes - authsize); } else { areq_ctx->icv_dma_addr = areq_ctx->mac_buf_dma_addr; @@ -1095,11 +1009,10 @@ prepare_data_mlli_exit: return rc; } -static inline int ssi_buffer_mgr_aead_chain_data( - struct ssi_drvdata *drvdata, - struct aead_request *req, - struct buffer_array *sg_data, - bool is_last_table, bool do_chain) +static int cc_aead_chain_data(struct cc_drvdata *drvdata, + struct aead_request *req, + struct buffer_array *sg_data, + bool is_last_table, bool do_chain) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); struct device *dev = drvdata_to_dev(drvdata); @@ -1109,7 +1022,8 @@ static inline int ssi_buffer_mgr_aead_chain_data( int rc = 0; u32 src_mapped_nents = 0, dst_mapped_nents = 0; u32 offset = 0; - unsigned int size_for_map = req->assoclen + req->cryptlen; /*non-inplace mode*/ + /* non-inplace mode */ + unsigned int size_for_map = req->assoclen + req->cryptlen; struct crypto_aead *tfm = crypto_aead_reqtfm(req); u32 sg_index = 0; bool chained = false; @@ -1130,11 +1044,10 @@ static inline int ssi_buffer_mgr_aead_chain_data( if (is_gcm4543) size_for_map += crypto_aead_ivsize(tfm); - size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? authsize : 0; - src_mapped_nents = ssi_buffer_mgr_get_sgl_nents(dev, req->src, - size_for_map, - &src_last_bytes, - &chained); + size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? + authsize : 0; + src_mapped_nents = cc_get_sgl_nents(dev, req->src, size_for_map, + &src_last_bytes, &chained); sg_index = areq_ctx->src_sgl->length; //check where the data starts while (sg_index <= size_to_skip) { @@ -1148,7 +1061,7 @@ static inline int ssi_buffer_mgr_aead_chain_data( sg_index += areq_ctx->src_sgl->length; src_mapped_nents--; } - if (unlikely(src_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES)) { + if (src_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES) { dev_err(dev, "Too many fragments. current %d max %d\n", src_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES); return -ENOMEM; @@ -1160,26 +1073,23 @@ static inline int ssi_buffer_mgr_aead_chain_data( if (req->src != req->dst) { size_for_map = req->assoclen + req->cryptlen; - size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? authsize : 0; + size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? + authsize : 0; if (is_gcm4543) size_for_map += crypto_aead_ivsize(tfm); - rc = ssi_buffer_mgr_map_scatterlist(dev, req->dst, size_for_map, - DMA_BIDIRECTIONAL, - &areq_ctx->dst.nents, - LLI_MAX_NUM_OF_DATA_ENTRIES, - &dst_last_bytes, - &dst_mapped_nents); - if (unlikely(rc != 0)) { + rc = cc_map_sg(dev, req->dst, size_for_map, DMA_BIDIRECTIONAL, + &areq_ctx->dst.nents, + LLI_MAX_NUM_OF_DATA_ENTRIES, &dst_last_bytes, + &dst_mapped_nents); + if (rc) { rc = -ENOMEM; goto chain_data_exit; } } - dst_mapped_nents = ssi_buffer_mgr_get_sgl_nents(dev, req->dst, - size_for_map, - &dst_last_bytes, - &chained); + dst_mapped_nents = cc_get_sgl_nents(dev, req->dst, size_for_map, + &dst_last_bytes, &chained); sg_index = areq_ctx->dst_sgl->length; offset = size_to_skip; @@ -1195,45 +1105,43 @@ static inline int ssi_buffer_mgr_aead_chain_data( sg_index += areq_ctx->dst_sgl->length; dst_mapped_nents--; } - if (unlikely(dst_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES)) { + if (dst_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES) { dev_err(dev, "Too many fragments. current %d max %d\n", dst_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES); return -ENOMEM; } areq_ctx->dst.nents = dst_mapped_nents; areq_ctx->dst_offset = offset; - if ((src_mapped_nents > 1) || - (dst_mapped_nents > 1) || + if (src_mapped_nents > 1 || + dst_mapped_nents > 1 || do_chain) { - areq_ctx->data_buff_type = SSI_DMA_BUF_MLLI; - rc = ssi_buffer_mgr_prepare_aead_data_mlli(drvdata, req, - sg_data, - &src_last_bytes, - &dst_last_bytes, - is_last_table); + areq_ctx->data_buff_type = CC_DMA_BUF_MLLI; + rc = cc_prepare_aead_data_mlli(drvdata, req, sg_data, + &src_last_bytes, + &dst_last_bytes, is_last_table); } else { - areq_ctx->data_buff_type = SSI_DMA_BUF_DLLI; - ssi_buffer_mgr_prepare_aead_data_dlli( - req, &src_last_bytes, &dst_last_bytes); + areq_ctx->data_buff_type = CC_DMA_BUF_DLLI; + cc_prepare_aead_data_dlli(req, &src_last_bytes, + &dst_last_bytes); } chain_data_exit: return rc; } -static void ssi_buffer_mgr_update_aead_mlli_nents(struct ssi_drvdata *drvdata, - struct aead_request *req) +static void cc_update_aead_mlli_nents(struct cc_drvdata *drvdata, + struct aead_request *req) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); u32 curr_mlli_size = 0; - if (areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI) { + if (areq_ctx->assoc_buff_type == CC_DMA_BUF_MLLI) { areq_ctx->assoc.sram_addr = drvdata->mlli_sram_addr; curr_mlli_size = areq_ctx->assoc.mlli_nents * LLI_ENTRY_BYTE_SIZE; } - if (areq_ctx->data_buff_type == SSI_DMA_BUF_MLLI) { + if (areq_ctx->data_buff_type == CC_DMA_BUF_MLLI) { /*Inplace case dst nents equal to src nents*/ if (req->src == req->dst) { areq_ctx->dst.mlli_nents = areq_ctx->src.mlli_nents; @@ -1272,8 +1180,7 @@ static void ssi_buffer_mgr_update_aead_mlli_nents(struct ssi_drvdata *drvdata, } } -int ssi_buffer_mgr_map_aead_request( - struct ssi_drvdata *drvdata, struct aead_request *req) +int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req) { struct aead_req_ctx *areq_ctx = aead_request_ctx(req); struct mlli_params *mlli_params = &areq_ctx->mlli_params; @@ -1284,30 +1191,22 @@ int ssi_buffer_mgr_map_aead_request( int rc = 0; struct crypto_aead *tfm = crypto_aead_reqtfm(req); bool is_gcm4543 = areq_ctx->is_gcm4543; - + dma_addr_t dma_addr; u32 mapped_nents = 0; u32 dummy = 0; /*used for the assoc data fragments */ u32 size_to_map = 0; + gfp_t flags = cc_gfp_flags(&req->base); mlli_params->curr_pool = NULL; sg_data.num_of_buffers = 0; + /* copy mac to a temporary location to deal with possible + * data memory overriding that caused by cache coherence problem. + */ if (drvdata->coherent && - (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) && - likely(req->src == req->dst)) { - u32 size_to_skip = req->assoclen; - - if (is_gcm4543) - size_to_skip += crypto_aead_ivsize(tfm); - - /* copy mac to a temporary location to deal with possible - * data memory overriding that caused by cache coherence problem. - */ - ssi_buffer_mgr_copy_scatterlist_portion( - dev, areq_ctx->backup_mac, req->src, - size_to_skip + req->cryptlen - areq_ctx->req_authsize, - size_to_skip + req->cryptlen, SSI_SG_TO_BUF); - } + areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT && + req->src == req->dst) + cc_copy_mac(dev, req, CC_SG_TO_BUF); /* cacluate the size for cipher remove ICV in decrypt*/ areq_ctx->cryptlen = (areq_ctx->gen_ctx.op_type == @@ -1315,90 +1214,83 @@ int ssi_buffer_mgr_map_aead_request( req->cryptlen : (req->cryptlen - authsize); - areq_ctx->mac_buf_dma_addr = dma_map_single(dev, areq_ctx->mac_buf, - MAX_MAC_SIZE, - DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(dev, areq_ctx->mac_buf_dma_addr))) { + dma_addr = dma_map_single(dev, areq_ctx->mac_buf, MAX_MAC_SIZE, + DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, dma_addr)) { dev_err(dev, "Mapping mac_buf %u B at va=%pK for DMA failed\n", MAX_MAC_SIZE, areq_ctx->mac_buf); rc = -ENOMEM; goto aead_map_failure; } + areq_ctx->mac_buf_dma_addr = dma_addr; if (areq_ctx->ccm_hdr_size != ccm_header_size_null) { - areq_ctx->ccm_iv0_dma_addr = dma_map_single(dev, - (areq_ctx->ccm_config + CCM_CTR_COUNT_0_OFFSET), - AES_BLOCK_SIZE, - DMA_TO_DEVICE); + void *addr = areq_ctx->ccm_config + CCM_CTR_COUNT_0_OFFSET; - if (unlikely(dma_mapping_error(dev, areq_ctx->ccm_iv0_dma_addr))) { + dma_addr = dma_map_single(dev, addr, AES_BLOCK_SIZE, + DMA_TO_DEVICE); + + if (dma_mapping_error(dev, dma_addr)) { dev_err(dev, "Mapping mac_buf %u B at va=%pK for DMA failed\n", - AES_BLOCK_SIZE, - (areq_ctx->ccm_config + - CCM_CTR_COUNT_0_OFFSET)); + AES_BLOCK_SIZE, addr); areq_ctx->ccm_iv0_dma_addr = 0; rc = -ENOMEM; goto aead_map_failure; } - if (ssi_aead_handle_config_buf(dev, areq_ctx, - areq_ctx->ccm_config, &sg_data, - req->assoclen) != 0) { + areq_ctx->ccm_iv0_dma_addr = dma_addr; + + if (cc_set_aead_conf_buf(dev, areq_ctx, areq_ctx->ccm_config, + &sg_data, req->assoclen)) { rc = -ENOMEM; goto aead_map_failure; } } -#if SSI_CC_HAS_AES_GCM if (areq_ctx->cipher_mode == DRV_CIPHER_GCTR) { - areq_ctx->hkey_dma_addr = dma_map_single(dev, - areq_ctx->hkey, - AES_BLOCK_SIZE, - DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(dev, areq_ctx->hkey_dma_addr))) { + dma_addr = dma_map_single(dev, areq_ctx->hkey, AES_BLOCK_SIZE, + DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, dma_addr)) { dev_err(dev, "Mapping hkey %u B at va=%pK for DMA failed\n", AES_BLOCK_SIZE, areq_ctx->hkey); rc = -ENOMEM; goto aead_map_failure; } + areq_ctx->hkey_dma_addr = dma_addr; - areq_ctx->gcm_block_len_dma_addr = dma_map_single(dev, - &areq_ctx->gcm_len_block, - AES_BLOCK_SIZE, - DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, areq_ctx->gcm_block_len_dma_addr))) { + dma_addr = dma_map_single(dev, &areq_ctx->gcm_len_block, + AES_BLOCK_SIZE, DMA_TO_DEVICE); + if (dma_mapping_error(dev, dma_addr)) { dev_err(dev, "Mapping gcm_len_block %u B at va=%pK for DMA failed\n", AES_BLOCK_SIZE, &areq_ctx->gcm_len_block); rc = -ENOMEM; goto aead_map_failure; } + areq_ctx->gcm_block_len_dma_addr = dma_addr; - areq_ctx->gcm_iv_inc1_dma_addr = dma_map_single(dev, - areq_ctx->gcm_iv_inc1, - AES_BLOCK_SIZE, - DMA_TO_DEVICE); + dma_addr = dma_map_single(dev, areq_ctx->gcm_iv_inc1, + AES_BLOCK_SIZE, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, areq_ctx->gcm_iv_inc1_dma_addr))) { + if (dma_mapping_error(dev, dma_addr)) { dev_err(dev, "Mapping gcm_iv_inc1 %u B at va=%pK for DMA failed\n", AES_BLOCK_SIZE, (areq_ctx->gcm_iv_inc1)); areq_ctx->gcm_iv_inc1_dma_addr = 0; rc = -ENOMEM; goto aead_map_failure; } + areq_ctx->gcm_iv_inc1_dma_addr = dma_addr; - areq_ctx->gcm_iv_inc2_dma_addr = dma_map_single(dev, - areq_ctx->gcm_iv_inc2, - AES_BLOCK_SIZE, - DMA_TO_DEVICE); + dma_addr = dma_map_single(dev, areq_ctx->gcm_iv_inc2, + AES_BLOCK_SIZE, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, areq_ctx->gcm_iv_inc2_dma_addr))) { + if (dma_mapping_error(dev, dma_addr)) { dev_err(dev, "Mapping gcm_iv_inc2 %u B at va=%pK for DMA failed\n", AES_BLOCK_SIZE, (areq_ctx->gcm_iv_inc2)); areq_ctx->gcm_iv_inc2_dma_addr = 0; rc = -ENOMEM; goto aead_map_failure; } + areq_ctx->gcm_iv_inc2_dma_addr = dma_addr; } -#endif /*SSI_CC_HAS_AES_GCM*/ size_to_map = req->cryptlen + req->assoclen; if (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_ENCRYPT) @@ -1406,29 +1298,31 @@ int ssi_buffer_mgr_map_aead_request( if (is_gcm4543) size_to_map += crypto_aead_ivsize(tfm); - rc = ssi_buffer_mgr_map_scatterlist(dev, req->src, - size_to_map, DMA_BIDIRECTIONAL, &areq_ctx->src.nents, - LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES + LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, &mapped_nents); - if (unlikely(rc != 0)) { + rc = cc_map_sg(dev, req->src, size_to_map, DMA_BIDIRECTIONAL, + &areq_ctx->src.nents, + (LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES + + LLI_MAX_NUM_OF_DATA_ENTRIES), + &dummy, &mapped_nents); + if (rc) { rc = -ENOMEM; goto aead_map_failure; } - if (likely(areq_ctx->is_single_pass)) { + if (areq_ctx->is_single_pass) { /* * Create MLLI table for: * (1) Assoc. data * (2) Src/Dst SGLs * Note: IV is contg. buffer (not an SGL) */ - rc = ssi_buffer_mgr_aead_chain_assoc(drvdata, req, &sg_data, true, false); - if (unlikely(rc != 0)) + rc = cc_aead_chain_assoc(drvdata, req, &sg_data, true, false); + if (rc) goto aead_map_failure; - rc = ssi_buffer_mgr_aead_chain_iv(drvdata, req, &sg_data, true, false); - if (unlikely(rc != 0)) + rc = cc_aead_chain_iv(drvdata, req, &sg_data, true, false); + if (rc) goto aead_map_failure; - rc = ssi_buffer_mgr_aead_chain_data(drvdata, req, &sg_data, true, false); - if (unlikely(rc != 0)) + rc = cc_aead_chain_data(drvdata, req, &sg_data, true, false); + if (rc) goto aead_map_failure; } else { /* DOUBLE-PASS flow */ /* @@ -1451,27 +1345,28 @@ int ssi_buffer_mgr_map_aead_request( * (3) MLLI for src * (4) MLLI for dst */ - rc = ssi_buffer_mgr_aead_chain_assoc(drvdata, req, &sg_data, false, true); - if (unlikely(rc != 0)) + rc = cc_aead_chain_assoc(drvdata, req, &sg_data, false, true); + if (rc) goto aead_map_failure; - rc = ssi_buffer_mgr_aead_chain_iv(drvdata, req, &sg_data, false, true); - if (unlikely(rc != 0)) + rc = cc_aead_chain_iv(drvdata, req, &sg_data, false, true); + if (rc) goto aead_map_failure; - rc = ssi_buffer_mgr_aead_chain_data(drvdata, req, &sg_data, true, true); - if (unlikely(rc != 0)) + rc = cc_aead_chain_data(drvdata, req, &sg_data, true, true); + if (rc) goto aead_map_failure; } - /* Mlli support -start building the MLLI according to the above results */ - if (unlikely( - (areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI) || - (areq_ctx->data_buff_type == SSI_DMA_BUF_MLLI))) { + /* Mlli support -start building the MLLI according to the above + * results + */ + if (areq_ctx->assoc_buff_type == CC_DMA_BUF_MLLI || + areq_ctx->data_buff_type == CC_DMA_BUF_MLLI) { mlli_params->curr_pool = buff_mgr->mlli_buffs_pool; - rc = ssi_buffer_mgr_generate_mlli(dev, &sg_data, mlli_params); - if (unlikely(rc != 0)) + rc = cc_generate_mlli(dev, &sg_data, mlli_params, flags); + if (rc) goto aead_map_failure; - ssi_buffer_mgr_update_aead_mlli_nents(drvdata, req); + cc_update_aead_mlli_nents(drvdata, req); dev_dbg(dev, "assoc params mn %d\n", areq_ctx->assoc.mlli_nents); dev_dbg(dev, "src params mn %d\n", areq_ctx->src.mlli_nents); @@ -1480,19 +1375,18 @@ int ssi_buffer_mgr_map_aead_request( return 0; aead_map_failure: - ssi_buffer_mgr_unmap_aead_request(dev, req); + cc_unmap_aead_request(dev, req); return rc; } -int ssi_buffer_mgr_map_hash_request_final( - struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, bool do_update) +int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx, + struct scatterlist *src, unsigned int nbytes, + bool do_update, gfp_t flags) { struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx; struct device *dev = drvdata_to_dev(drvdata); - u8 *curr_buff = areq_ctx->buff_index ? areq_ctx->buff1 : - areq_ctx->buff0; - u32 *curr_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff1_cnt : - &areq_ctx->buff0_cnt; + u8 *curr_buff = cc_hash_buf(areq_ctx); + u32 *curr_buff_cnt = cc_hash_buf_cnt(areq_ctx); struct mlli_params *mlli_params = &areq_ctx->mlli_params; struct buffer_array sg_data; struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle; @@ -1502,88 +1396,78 @@ int ssi_buffer_mgr_map_hash_request_final( dev_dbg(dev, "final params : curr_buff=%pK curr_buff_cnt=0x%X nbytes = 0x%X src=%pK curr_index=%u\n", curr_buff, *curr_buff_cnt, nbytes, src, areq_ctx->buff_index); /* Init the type of the dma buffer */ - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_NULL; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_NULL; mlli_params->curr_pool = NULL; sg_data.num_of_buffers = 0; areq_ctx->in_nents = 0; - if (unlikely(nbytes == 0 && *curr_buff_cnt == 0)) { + if (nbytes == 0 && *curr_buff_cnt == 0) { /* nothing to do */ return 0; } /*TODO: copy data in case that buffer is enough for operation */ /* map the previous buffer */ - if (*curr_buff_cnt != 0) { - if (ssi_ahash_handle_curr_buf(dev, areq_ctx, curr_buff, - *curr_buff_cnt, &sg_data) != 0) { + if (*curr_buff_cnt) { + if (cc_set_hash_buf(dev, areq_ctx, curr_buff, *curr_buff_cnt, + &sg_data)) { return -ENOMEM; } } - if (src && (nbytes > 0) && do_update) { - if (unlikely(ssi_buffer_mgr_map_scatterlist(dev, src, nbytes, - DMA_TO_DEVICE, - &areq_ctx->in_nents, - LLI_MAX_NUM_OF_DATA_ENTRIES, - &dummy, - &mapped_nents))){ + if (src && nbytes > 0 && do_update) { + if (cc_map_sg(dev, src, nbytes, DMA_TO_DEVICE, + &areq_ctx->in_nents, LLI_MAX_NUM_OF_DATA_ENTRIES, + &dummy, &mapped_nents)) { goto unmap_curr_buff; } - if (src && (mapped_nents == 1) - && (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL)) { + if (src && mapped_nents == 1 && + areq_ctx->data_dma_buf_type == CC_DMA_BUF_NULL) { memcpy(areq_ctx->buff_sg, src, sizeof(struct scatterlist)); areq_ctx->buff_sg->length = nbytes; areq_ctx->curr_sg = areq_ctx->buff_sg; - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_DLLI; } else { - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_MLLI; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_MLLI; } } /*build mlli */ - if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) { + if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_MLLI) { mlli_params->curr_pool = buff_mgr->mlli_buffs_pool; /* add the src data to the sg_data */ - ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data, - areq_ctx->in_nents, - src, nbytes, 0, true, - &areq_ctx->mlli_nents); - if (unlikely(ssi_buffer_mgr_generate_mlli(dev, &sg_data, - mlli_params) != 0)) { + cc_add_sg_entry(dev, &sg_data, areq_ctx->in_nents, src, nbytes, + 0, true, &areq_ctx->mlli_nents); + if (cc_generate_mlli(dev, &sg_data, mlli_params, flags)) goto fail_unmap_din; - } } /* change the buffer index for the unmap function */ areq_ctx->buff_index = (areq_ctx->buff_index ^ 1); dev_dbg(dev, "areq_ctx->data_dma_buf_type = %s\n", - GET_DMA_BUFFER_TYPE(areq_ctx->data_dma_buf_type)); + cc_dma_buf_type(areq_ctx->data_dma_buf_type)); return 0; fail_unmap_din: dma_unmap_sg(dev, src, areq_ctx->in_nents, DMA_TO_DEVICE); unmap_curr_buff: - if (*curr_buff_cnt != 0) + if (*curr_buff_cnt) dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE); return -ENOMEM; } -int ssi_buffer_mgr_map_hash_request_update( - struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, unsigned int block_size) +int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx, + struct scatterlist *src, unsigned int nbytes, + unsigned int block_size, gfp_t flags) { struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx; struct device *dev = drvdata_to_dev(drvdata); - u8 *curr_buff = areq_ctx->buff_index ? areq_ctx->buff1 : - areq_ctx->buff0; - u32 *curr_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff1_cnt : - &areq_ctx->buff0_cnt; - u8 *next_buff = areq_ctx->buff_index ? areq_ctx->buff0 : - areq_ctx->buff1; - u32 *next_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff0_cnt : - &areq_ctx->buff1_cnt; + u8 *curr_buff = cc_hash_buf(areq_ctx); + u32 *curr_buff_cnt = cc_hash_buf_cnt(areq_ctx); + u8 *next_buff = cc_next_buf(areq_ctx); + u32 *next_buff_cnt = cc_next_buf_cnt(areq_ctx); struct mlli_params *mlli_params = &areq_ctx->mlli_params; unsigned int update_data_len; u32 total_in_len = nbytes + *curr_buff_cnt; @@ -1596,18 +1480,17 @@ int ssi_buffer_mgr_map_hash_request_update( dev_dbg(dev, " update params : curr_buff=%pK curr_buff_cnt=0x%X nbytes=0x%X src=%pK curr_index=%u\n", curr_buff, *curr_buff_cnt, nbytes, src, areq_ctx->buff_index); /* Init the type of the dma buffer */ - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_NULL; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_NULL; mlli_params->curr_pool = NULL; areq_ctx->curr_sg = NULL; sg_data.num_of_buffers = 0; areq_ctx->in_nents = 0; - if (unlikely(total_in_len < block_size)) { + if (total_in_len < block_size) { dev_dbg(dev, " less than one block: curr_buff=%pK *curr_buff_cnt=0x%X copy_to=%pK\n", curr_buff, *curr_buff_cnt, &curr_buff[*curr_buff_cnt]); areq_ctx->in_nents = - ssi_buffer_mgr_get_sgl_nents(dev, src, nbytes, &dummy, - NULL); + cc_get_sgl_nents(dev, src, nbytes, &dummy, NULL); sg_copy_to_buffer(src, areq_ctx->in_nents, &curr_buff[*curr_buff_cnt], nbytes); *curr_buff_cnt += nbytes; @@ -1623,20 +1506,20 @@ int ssi_buffer_mgr_map_hash_request_update( *next_buff_cnt, update_data_len); /* Copy the new residue to next buffer */ - if (*next_buff_cnt != 0) { + if (*next_buff_cnt) { dev_dbg(dev, " handle residue: next buff %pK skip data %u residue %u\n", next_buff, (update_data_len - *curr_buff_cnt), *next_buff_cnt); - ssi_buffer_mgr_copy_scatterlist_portion(dev, next_buff, src, - (update_data_len - *curr_buff_cnt), - nbytes, SSI_SG_TO_BUF); + cc_copy_sg_portion(dev, next_buff, src, + (update_data_len - *curr_buff_cnt), + nbytes, CC_SG_TO_BUF); /* change the buffer index for next operation */ swap_index = 1; } - if (*curr_buff_cnt != 0) { - if (ssi_ahash_handle_curr_buf(dev, areq_ctx, curr_buff, - *curr_buff_cnt, &sg_data) != 0) { + if (*curr_buff_cnt) { + if (cc_set_hash_buf(dev, areq_ctx, curr_buff, *curr_buff_cnt, + &sg_data)) { return -ENOMEM; } /* change the buffer index for next operation */ @@ -1644,42 +1527,33 @@ int ssi_buffer_mgr_map_hash_request_update( } if (update_data_len > *curr_buff_cnt) { - if (unlikely(ssi_buffer_mgr_map_scatterlist(dev, src, - (update_data_len - *curr_buff_cnt), - DMA_TO_DEVICE, - &areq_ctx->in_nents, - LLI_MAX_NUM_OF_DATA_ENTRIES, - &dummy, - &mapped_nents))){ + if (cc_map_sg(dev, src, (update_data_len - *curr_buff_cnt), + DMA_TO_DEVICE, &areq_ctx->in_nents, + LLI_MAX_NUM_OF_DATA_ENTRIES, &dummy, + &mapped_nents)) { goto unmap_curr_buff; } - if ((mapped_nents == 1) - && (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL)) { + if (mapped_nents == 1 && + areq_ctx->data_dma_buf_type == CC_DMA_BUF_NULL) { /* only one entry in the SG and no previous data */ memcpy(areq_ctx->buff_sg, src, sizeof(struct scatterlist)); areq_ctx->buff_sg->length = update_data_len; - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_DLLI; areq_ctx->curr_sg = areq_ctx->buff_sg; } else { - areq_ctx->data_dma_buf_type = SSI_DMA_BUF_MLLI; + areq_ctx->data_dma_buf_type = CC_DMA_BUF_MLLI; } } - if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) { + if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_MLLI) { mlli_params->curr_pool = buff_mgr->mlli_buffs_pool; /* add the src data to the sg_data */ - ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data, - areq_ctx->in_nents, - src, - (update_data_len - *curr_buff_cnt), - 0, - true, - &areq_ctx->mlli_nents); - if (unlikely(ssi_buffer_mgr_generate_mlli(dev, &sg_data, - mlli_params) != 0)) { + cc_add_sg_entry(dev, &sg_data, areq_ctx->in_nents, src, + (update_data_len - *curr_buff_cnt), 0, true, + &areq_ctx->mlli_nents); + if (cc_generate_mlli(dev, &sg_data, mlli_params, flags)) goto fail_unmap_din; - } } areq_ctx->buff_index = (areq_ctx->buff_index ^ swap_index); @@ -1689,18 +1563,17 @@ fail_unmap_din: dma_unmap_sg(dev, src, areq_ctx->in_nents, DMA_TO_DEVICE); unmap_curr_buff: - if (*curr_buff_cnt != 0) + if (*curr_buff_cnt) dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE); return -ENOMEM; } -void ssi_buffer_mgr_unmap_hash_request( - struct device *dev, void *ctx, struct scatterlist *src, bool do_revert) +void cc_unmap_hash_request(struct device *dev, void *ctx, + struct scatterlist *src, bool do_revert) { struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx; - u32 *prev_len = areq_ctx->buff_index ? &areq_ctx->buff0_cnt : - &areq_ctx->buff1_cnt; + u32 *prev_len = cc_next_buf_cnt(areq_ctx); /*In case a pool was set, a table was *allocated and should be released @@ -1714,21 +1587,23 @@ void ssi_buffer_mgr_unmap_hash_request( areq_ctx->mlli_params.mlli_dma_addr); } - if ((src) && likely(areq_ctx->in_nents != 0)) { + if (src && areq_ctx->in_nents) { dev_dbg(dev, "Unmapped sg src: virt=%pK dma=%pad len=0x%X\n", sg_virt(src), &sg_dma_address(src), sg_dma_len(src)); dma_unmap_sg(dev, src, areq_ctx->in_nents, DMA_TO_DEVICE); } - if (*prev_len != 0) { + if (*prev_len) { dev_dbg(dev, "Unmapped buffer: areq_ctx->buff_sg=%pK dma=%pad len 0x%X\n", sg_virt(areq_ctx->buff_sg), &sg_dma_address(areq_ctx->buff_sg), sg_dma_len(areq_ctx->buff_sg)); dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE); if (!do_revert) { - /* clean the previous data length for update operation */ + /* clean the previous data length for update + * operation + */ *prev_len = 0; } else { areq_ctx->buff_index ^= 1; @@ -1736,7 +1611,7 @@ void ssi_buffer_mgr_unmap_hash_request( } } -int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata) +int cc_buffer_mgr_init(struct cc_drvdata *drvdata) { struct buff_mgr_handle *buff_mgr_handle; struct device *dev = drvdata_to_dev(drvdata); @@ -1747,23 +1622,23 @@ int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata) drvdata->buff_mgr_handle = buff_mgr_handle; - buff_mgr_handle->mlli_buffs_pool = dma_pool_create( - "dx_single_mlli_tables", dev, + buff_mgr_handle->mlli_buffs_pool = + dma_pool_create("dx_single_mlli_tables", dev, MAX_NUM_OF_TOTAL_MLLI_ENTRIES * LLI_ENTRY_BYTE_SIZE, MLLI_TABLE_MIN_ALIGNMENT, 0); - if (unlikely(!buff_mgr_handle->mlli_buffs_pool)) + if (!buff_mgr_handle->mlli_buffs_pool) goto error; return 0; error: - ssi_buffer_mgr_fini(drvdata); + cc_buffer_mgr_fini(drvdata); return -ENOMEM; } -int ssi_buffer_mgr_fini(struct ssi_drvdata *drvdata) +int cc_buffer_mgr_fini(struct cc_drvdata *drvdata) { struct buff_mgr_handle *buff_mgr_handle = drvdata->buff_mgr_handle; diff --git a/drivers/staging/ccree/cc_buffer_mgr.h b/drivers/staging/ccree/cc_buffer_mgr.h new file mode 100644 index 000000000000..99b752aa1077 --- /dev/null +++ b/drivers/staging/ccree/cc_buffer_mgr.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_buffer_mgr.h + * Buffer Manager + */ + +#ifndef __CC_BUFFER_MGR_H__ +#define __CC_BUFFER_MGR_H__ + +#include <crypto/algapi.h> + +#include "cc_driver.h" + +enum cc_req_dma_buf_type { + CC_DMA_BUF_NULL = 0, + CC_DMA_BUF_DLLI, + CC_DMA_BUF_MLLI +}; + +enum cc_sg_cpy_direct { + CC_SG_TO_BUF = 0, + CC_SG_FROM_BUF = 1 +}; + +struct cc_mlli { + cc_sram_addr_t sram_addr; + unsigned int nents; //sg nents + unsigned int mlli_nents; //mlli nents might be different than the above +}; + +struct mlli_params { + struct dma_pool *curr_pool; + u8 *mlli_virt_addr; + dma_addr_t mlli_dma_addr; + u32 mlli_len; +}; + +int cc_buffer_mgr_init(struct cc_drvdata *drvdata); + +int cc_buffer_mgr_fini(struct cc_drvdata *drvdata); + +int cc_map_blkcipher_request(struct cc_drvdata *drvdata, void *ctx, + unsigned int ivsize, unsigned int nbytes, + void *info, struct scatterlist *src, + struct scatterlist *dst, gfp_t flags); + +void cc_unmap_blkcipher_request(struct device *dev, void *ctx, + unsigned int ivsize, + struct scatterlist *src, + struct scatterlist *dst); + +int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req); + +void cc_unmap_aead_request(struct device *dev, struct aead_request *req); + +int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx, + struct scatterlist *src, unsigned int nbytes, + bool do_update, gfp_t flags); + +int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx, + struct scatterlist *src, unsigned int nbytes, + unsigned int block_size, gfp_t flags); + +void cc_unmap_hash_request(struct device *dev, void *ctx, + struct scatterlist *src, bool do_revert); + +void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg, + u32 to_skip, u32 end, enum cc_sg_cpy_direct direct); + +void cc_zero_sgl(struct scatterlist *sgl, u32 data_len); + +#endif /*__BUFFER_MGR_H__*/ + diff --git a/drivers/staging/ccree/ssi_cipher.c b/drivers/staging/ccree/cc_cipher.c index ee85cbf7c9ae..d4ac0ff2ffcf 100644 --- a/drivers/staging/ccree/ssi_cipher.c +++ b/drivers/staging/ccree/cc_cipher.c @@ -1,46 +1,27 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/semaphore.h> #include <crypto/algapi.h> #include <crypto/internal/skcipher.h> -#include <crypto/aes.h> -#include <crypto/ctr.h> #include <crypto/des.h> #include <crypto/xts.h> #include <crypto/scatterwalk.h> -#include "ssi_config.h" -#include "ssi_driver.h" +#include "cc_driver.h" #include "cc_lli_defs.h" -#include "ssi_buffer_mgr.h" -#include "ssi_cipher.h" -#include "ssi_request_mgr.h" -#include "ssi_sysfs.h" +#include "cc_buffer_mgr.h" +#include "cc_cipher.h" +#include "cc_request_mgr.h" #define MAX_ABLKCIPHER_SEQ_LEN 6 #define template_ablkcipher template_u.ablkcipher -#define SSI_MIN_AES_XTS_SIZE 0x10 -#define SSI_MAX_AES_XTS_SIZE 0x2000 -struct ssi_blkcipher_handle { +#define CC_MIN_AES_XTS_SIZE 0x10 +#define CC_MAX_AES_XTS_SIZE 0x2000 +struct cc_cipher_handle { struct list_head blkcipher_alg_list; }; @@ -54,8 +35,8 @@ struct cc_hw_key_info { enum cc_hw_crypto_key key2_slot; }; -struct ssi_ablkcipher_ctx { - struct ssi_drvdata *drvdata; +struct cc_cipher_ctx { + struct cc_drvdata *drvdata; int keylen; int key_round_number; int cipher_mode; @@ -67,61 +48,56 @@ struct ssi_ablkcipher_ctx { struct crypto_shash *shash_tfm; }; -static void ssi_ablkcipher_complete(struct device *dev, void *ssi_req, void __iomem *cc_base); +static void cc_cipher_complete(struct device *dev, void *cc_req, int err); -static int validate_keys_sizes(struct ssi_ablkcipher_ctx *ctx_p, u32 size) +static int validate_keys_sizes(struct cc_cipher_ctx *ctx_p, u32 size) { switch (ctx_p->flow_mode) { case S_DIN_to_AES: switch (size) { case CC_AES_128_BIT_KEY_SIZE: case CC_AES_192_BIT_KEY_SIZE: - if (likely((ctx_p->cipher_mode != DRV_CIPHER_XTS) && - (ctx_p->cipher_mode != DRV_CIPHER_ESSIV) && - (ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER))) + if (ctx_p->cipher_mode != DRV_CIPHER_XTS && + ctx_p->cipher_mode != DRV_CIPHER_ESSIV && + ctx_p->cipher_mode != DRV_CIPHER_BITLOCKER) return 0; break; case CC_AES_256_BIT_KEY_SIZE: return 0; case (CC_AES_192_BIT_KEY_SIZE * 2): case (CC_AES_256_BIT_KEY_SIZE * 2): - if (likely((ctx_p->cipher_mode == DRV_CIPHER_XTS) || - (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) || - (ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER))) + if (ctx_p->cipher_mode == DRV_CIPHER_XTS || + ctx_p->cipher_mode == DRV_CIPHER_ESSIV || + ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) return 0; break; default: break; } case S_DIN_to_DES: - if (likely(size == DES3_EDE_KEY_SIZE || size == DES_KEY_SIZE)) + if (size == DES3_EDE_KEY_SIZE || size == DES_KEY_SIZE) return 0; break; -#if SSI_CC_HAS_MULTI2 - case S_DIN_to_MULTI2: - if (likely(size == CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE)) - return 0; - break; -#endif default: break; } return -EINVAL; } -static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p, unsigned int size) +static int validate_data_size(struct cc_cipher_ctx *ctx_p, + unsigned int size) { switch (ctx_p->flow_mode) { case S_DIN_to_AES: switch (ctx_p->cipher_mode) { case DRV_CIPHER_XTS: - if ((size >= SSI_MIN_AES_XTS_SIZE) && - (size <= SSI_MAX_AES_XTS_SIZE) && + if (size >= CC_MIN_AES_XTS_SIZE && + size <= CC_MAX_AES_XTS_SIZE && IS_ALIGNED(size, AES_BLOCK_SIZE)) return 0; break; case DRV_CIPHER_CBC_CTS: - if (likely(size >= AES_BLOCK_SIZE)) + if (size >= AES_BLOCK_SIZE) return 0; break; case DRV_CIPHER_OFB: @@ -131,7 +107,7 @@ static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p, unsigned int siz case DRV_CIPHER_CBC: case DRV_CIPHER_ESSIV: case DRV_CIPHER_BITLOCKER: - if (likely(IS_ALIGNED(size, AES_BLOCK_SIZE))) + if (IS_ALIGNED(size, AES_BLOCK_SIZE)) return 0; break; default: @@ -139,23 +115,9 @@ static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p, unsigned int siz } break; case S_DIN_to_DES: - if (likely(IS_ALIGNED(size, DES_BLOCK_SIZE))) - return 0; - break; -#if SSI_CC_HAS_MULTI2 - case S_DIN_to_MULTI2: - switch (ctx_p->cipher_mode) { - case DRV_MULTI2_CBC: - if (likely(IS_ALIGNED(size, CC_MULTI2_BLOCK_SIZE))) - return 0; - break; - case DRV_MULTI2_OFB: + if (IS_ALIGNED(size, DES_BLOCK_SIZE)) return 0; - default: - break; - } break; -#endif /*SSI_CC_HAS_MULTI2*/ default: break; } @@ -164,36 +126,42 @@ static int validate_data_size(struct ssi_ablkcipher_ctx *ctx_p, unsigned int siz static unsigned int get_max_keysize(struct crypto_tfm *tfm) { - struct ssi_crypto_alg *ssi_alg = container_of(tfm->__crt_alg, struct ssi_crypto_alg, crypto_alg); + struct cc_crypto_alg *cc_alg = + container_of(tfm->__crt_alg, struct cc_crypto_alg, crypto_alg); - if ((ssi_alg->crypto_alg.cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_ABLKCIPHER) - return ssi_alg->crypto_alg.cra_ablkcipher.max_keysize; + if ((cc_alg->crypto_alg.cra_flags & CRYPTO_ALG_TYPE_MASK) == + CRYPTO_ALG_TYPE_ABLKCIPHER) + return cc_alg->crypto_alg.cra_ablkcipher.max_keysize; - if ((ssi_alg->crypto_alg.cra_flags & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_BLKCIPHER) - return ssi_alg->crypto_alg.cra_blkcipher.max_keysize; + if ((cc_alg->crypto_alg.cra_flags & CRYPTO_ALG_TYPE_MASK) == + CRYPTO_ALG_TYPE_BLKCIPHER) + return cc_alg->crypto_alg.cra_blkcipher.max_keysize; return 0; } -static int ssi_blkcipher_init(struct crypto_tfm *tfm) +static int cc_cipher_init(struct crypto_tfm *tfm) { - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); + struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct crypto_alg *alg = tfm->__crt_alg; - struct ssi_crypto_alg *ssi_alg = - container_of(alg, struct ssi_crypto_alg, crypto_alg); - struct device *dev = drvdata_to_dev(ssi_alg->drvdata); + struct cc_crypto_alg *cc_alg = + container_of(alg, struct cc_crypto_alg, crypto_alg); + struct device *dev = drvdata_to_dev(cc_alg->drvdata); int rc = 0; unsigned int max_key_buf_size = get_max_keysize(tfm); + struct ablkcipher_tfm *ablktfm = &tfm->crt_ablkcipher; dev_dbg(dev, "Initializing context @%p for %s\n", ctx_p, crypto_tfm_alg_name(tfm)); - ctx_p->cipher_mode = ssi_alg->cipher_mode; - ctx_p->flow_mode = ssi_alg->flow_mode; - ctx_p->drvdata = ssi_alg->drvdata; + ablktfm->reqsize = sizeof(struct blkcipher_req_ctx); + + ctx_p->cipher_mode = cc_alg->cipher_mode; + ctx_p->flow_mode = cc_alg->flow_mode; + ctx_p->drvdata = cc_alg->drvdata; /* Allocate key buffer, cache line aligned */ - ctx_p->user.key = kmalloc(max_key_buf_size, GFP_KERNEL | GFP_DMA); + ctx_p->user.key = kmalloc(max_key_buf_size, GFP_KERNEL); if (!ctx_p->user.key) return -ENOMEM; @@ -224,9 +192,9 @@ static int ssi_blkcipher_init(struct crypto_tfm *tfm) return rc; } -static void ssi_blkcipher_exit(struct crypto_tfm *tfm) +static void cc_cipher_exit(struct crypto_tfm *tfm) { - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); + struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx_p->drvdata); unsigned int max_key_buf_size = get_max_keysize(tfm); @@ -262,13 +230,15 @@ static const u8 zero_buff[] = { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}; /* The function verifies that tdes keys are not weak.*/ -static int ssi_verify_3des_keys(const u8 *key, unsigned int keylen) +static int cc_verify_3des_keys(const u8 *key, unsigned int keylen) { struct tdes_keys *tdes_key = (struct tdes_keys *)key; /* verify key1 != key2 and key3 != key2*/ - if (unlikely((memcmp((u8 *)tdes_key->key1, (u8 *)tdes_key->key2, sizeof(tdes_key->key1)) == 0) || - (memcmp((u8 *)tdes_key->key3, (u8 *)tdes_key->key2, sizeof(tdes_key->key3)) == 0))) { + if ((memcmp((u8 *)tdes_key->key1, (u8 *)tdes_key->key2, + sizeof(tdes_key->key1)) == 0) || + (memcmp((u8 *)tdes_key->key3, (u8 *)tdes_key->key2, + sizeof(tdes_key->key3)) == 0)) { return -ENOEXEC; } @@ -290,11 +260,11 @@ static enum cc_hw_crypto_key hw_key_to_cc_hw_key(int slot_num) return END_OF_KEYS; } -static int ssi_blkcipher_setkey(struct crypto_tfm *tfm, - const u8 *key, - unsigned int keylen) +static int cc_cipher_setkey(struct crypto_ablkcipher *atfm, const u8 *key, + unsigned int keylen) { - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); + struct crypto_tfm *tfm = crypto_ablkcipher_tfm(atfm); + struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx_p->drvdata); u32 tmp[DES_EXPKEY_WORDS]; unsigned int max_key_buf_size = get_max_keysize(tfm); @@ -305,44 +275,39 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm, /* STAT_PHASE_0: Init and sanity checks */ -#if SSI_CC_HAS_MULTI2 - /*last byte of key buffer is round number and should not be a part of key size*/ - if (ctx_p->flow_mode == S_DIN_to_MULTI2) - keylen -= 1; -#endif /*SSI_CC_HAS_MULTI2*/ - - if (unlikely(validate_keys_sizes(ctx_p, keylen) != 0)) { + if (validate_keys_sizes(ctx_p, keylen)) { dev_err(dev, "Unsupported key size %d.\n", keylen); crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); return -EINVAL; } - if (ssi_is_hw_key(tfm)) { + if (cc_is_hw_key(tfm)) { /* setting HW key slots */ struct arm_hw_key_info *hki = (struct arm_hw_key_info *)key; - if (unlikely(ctx_p->flow_mode != S_DIN_to_AES)) { + if (ctx_p->flow_mode != S_DIN_to_AES) { dev_err(dev, "HW key not supported for non-AES flows\n"); return -EINVAL; } ctx_p->hw.key1_slot = hw_key_to_cc_hw_key(hki->hw_key1); - if (unlikely(ctx_p->hw.key1_slot == END_OF_KEYS)) { + if (ctx_p->hw.key1_slot == END_OF_KEYS) { dev_err(dev, "Unsupported hw key1 number (%d)\n", hki->hw_key1); return -EINVAL; } - if ((ctx_p->cipher_mode == DRV_CIPHER_XTS) || - (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) || - (ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER)) { - if (unlikely(hki->hw_key1 == hki->hw_key2)) { + if (ctx_p->cipher_mode == DRV_CIPHER_XTS || + ctx_p->cipher_mode == DRV_CIPHER_ESSIV || + ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER) { + if (hki->hw_key1 == hki->hw_key2) { dev_err(dev, "Illegal hw key numbers (%d,%d)\n", hki->hw_key1, hki->hw_key2); return -EINVAL; } - ctx_p->hw.key2_slot = hw_key_to_cc_hw_key(hki->hw_key2); - if (unlikely(ctx_p->hw.key2_slot == END_OF_KEYS)) { + ctx_p->hw.key2_slot = + hw_key_to_cc_hw_key(hki->hw_key2); + if (ctx_p->hw.key2_slot == END_OF_KEYS) { dev_err(dev, "Unsupported hw key2 number (%d)\n", hki->hw_key2); return -EINVAL; @@ -350,28 +315,28 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm, } ctx_p->keylen = keylen; - dev_dbg(dev, "ssi_is_hw_key ret 0"); + dev_dbg(dev, "cc_is_hw_key ret 0"); return 0; } // verify weak keys if (ctx_p->flow_mode == S_DIN_to_DES) { - if (unlikely(!des_ekey(tmp, key)) && + if (!des_ekey(tmp, key) && (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_WEAK_KEY)) { tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY; dev_dbg(dev, "weak DES key"); return -EINVAL; } } - if ((ctx_p->cipher_mode == DRV_CIPHER_XTS) && - xts_check_key(tfm, key, keylen) != 0) { + if (ctx_p->cipher_mode == DRV_CIPHER_XTS && + xts_check_key(tfm, key, keylen)) { dev_dbg(dev, "weak XTS key"); return -EINVAL; } - if ((ctx_p->flow_mode == S_DIN_to_DES) && - (keylen == DES3_EDE_KEY_SIZE) && - ssi_verify_3des_keys(key, keylen) != 0) { + if (ctx_p->flow_mode == S_DIN_to_DES && + keylen == DES3_EDE_KEY_SIZE && + cc_verify_3des_keys(key, keylen)) { dev_dbg(dev, "weak 3DES key"); return -EINVAL; } @@ -380,34 +345,24 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm, dma_sync_single_for_cpu(dev, ctx_p->user.key_dma_addr, max_key_buf_size, DMA_TO_DEVICE); - if (ctx_p->flow_mode == S_DIN_to_MULTI2) { -#if SSI_CC_HAS_MULTI2 - memcpy(ctx_p->user.key, key, CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE); - ctx_p->key_round_number = key[CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE]; - if (ctx_p->key_round_number < CC_MULTI2_MIN_NUM_ROUNDS || - ctx_p->key_round_number > CC_MULTI2_MAX_NUM_ROUNDS) { - crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN); - dev_dbg(dev, "SSI_CC_HAS_MULTI2 einval"); - return -EINVAL; -#endif /*SSI_CC_HAS_MULTI2*/ - } else { - memcpy(ctx_p->user.key, key, keylen); - if (keylen == 24) - memset(ctx_p->user.key + 24, 0, CC_AES_KEY_SIZE_MAX - 24); - - if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) { - /* sha256 for key2 - use sw implementation */ - int key_len = keylen >> 1; - int err; - SHASH_DESC_ON_STACK(desc, ctx_p->shash_tfm); - - desc->tfm = ctx_p->shash_tfm; - - err = crypto_shash_digest(desc, ctx_p->user.key, key_len, ctx_p->user.key + key_len); - if (err) { - dev_err(dev, "Failed to hash ESSIV key.\n"); - return err; - } + memcpy(ctx_p->user.key, key, keylen); + if (keylen == 24) + memset(ctx_p->user.key + 24, 0, CC_AES_KEY_SIZE_MAX - 24); + + if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) { + /* sha256 for key2 - use sw implementation */ + int key_len = keylen >> 1; + int err; + + SHASH_DESC_ON_STACK(desc, ctx_p->shash_tfm); + + desc->tfm = ctx_p->shash_tfm; + + err = crypto_shash_digest(desc, ctx_p->user.key, key_len, + ctx_p->user.key + key_len); + if (err) { + dev_err(dev, "Failed to hash ESSIV key.\n"); + return err; } } dma_sync_single_for_device(dev, ctx_p->user.key_dma_addr, @@ -418,16 +373,13 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm, return 0; } -static inline void -ssi_blkcipher_create_setup_desc( - struct crypto_tfm *tfm, - struct blkcipher_req_ctx *req_ctx, - unsigned int ivsize, - unsigned int nbytes, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_setup_cipher_desc(struct crypto_tfm *tfm, + struct blkcipher_req_ctx *req_ctx, + unsigned int ivsize, unsigned int nbytes, + struct cc_hw_desc desc[], + unsigned int *seq_size) { - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); + struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx_p->drvdata); int cipher_mode = ctx_p->cipher_mode; int flow_mode = ctx_p->flow_mode; @@ -437,11 +389,14 @@ ssi_blkcipher_create_setup_desc( dma_addr_t iv_dma_addr = req_ctx->gen_ctx.iv_dma_addr; unsigned int du_size = nbytes; - struct ssi_crypto_alg *ssi_alg = container_of(tfm->__crt_alg, struct ssi_crypto_alg, crypto_alg); + struct cc_crypto_alg *cc_alg = + container_of(tfm->__crt_alg, struct cc_crypto_alg, crypto_alg); - if ((ssi_alg->crypto_alg.cra_flags & CRYPTO_ALG_BULK_MASK) == CRYPTO_ALG_BULK_DU_512) + if ((cc_alg->crypto_alg.cra_flags & CRYPTO_ALG_BULK_MASK) == + CRYPTO_ALG_BULK_DU_512) du_size = 512; - if ((ssi_alg->crypto_alg.cra_flags & CRYPTO_ALG_BULK_MASK) == CRYPTO_ALG_BULK_DU_4096) + if ((cc_alg->crypto_alg.cra_flags & CRYPTO_ALG_BULK_MASK) == + CRYPTO_ALG_BULK_DU_4096) du_size = 4096; switch (cipher_mode) { @@ -456,8 +411,8 @@ ssi_blkcipher_create_setup_desc( set_cipher_config0(&desc[*seq_size], direction); set_flow_mode(&desc[*seq_size], flow_mode); set_cipher_mode(&desc[*seq_size], cipher_mode); - if ((cipher_mode == DRV_CIPHER_CTR) || - (cipher_mode == DRV_CIPHER_OFB)) { + if (cipher_mode == DRV_CIPHER_CTR || + cipher_mode == DRV_CIPHER_OFB) { set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE1); } else { set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE0); @@ -470,7 +425,7 @@ ssi_blkcipher_create_setup_desc( set_cipher_mode(&desc[*seq_size], cipher_mode); set_cipher_config0(&desc[*seq_size], direction); if (flow_mode == S_DIN_to_AES) { - if (ssi_is_hw_key(tfm)) { + if (cc_is_hw_key(tfm)) { set_hw_crypto_key(&desc[*seq_size], ctx_p->hw.key1_slot); } else { @@ -497,7 +452,7 @@ ssi_blkcipher_create_setup_desc( hw_desc_init(&desc[*seq_size]); set_cipher_mode(&desc[*seq_size], cipher_mode); set_cipher_config0(&desc[*seq_size], direction); - if (ssi_is_hw_key(tfm)) { + if (cc_is_hw_key(tfm)) { set_hw_crypto_key(&desc[*seq_size], ctx_p->hw.key1_slot); } else { @@ -513,7 +468,7 @@ ssi_blkcipher_create_setup_desc( hw_desc_init(&desc[*seq_size]); set_cipher_mode(&desc[*seq_size], cipher_mode); set_cipher_config0(&desc[*seq_size], direction); - if (ssi_is_hw_key(tfm)) { + if (cc_is_hw_key(tfm)) { set_hw_crypto_key(&desc[*seq_size], ctx_p->hw.key2_slot); } else { @@ -543,62 +498,14 @@ ssi_blkcipher_create_setup_desc( } } -#if SSI_CC_HAS_MULTI2 -static inline void ssi_blkcipher_create_multi2_setup_desc( - struct crypto_tfm *tfm, - struct blkcipher_req_ctx *req_ctx, - unsigned int ivsize, - struct cc_hw_desc desc[], - unsigned int *seq_size) -{ - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); - - int direction = req_ctx->gen_ctx.op_type; - /* Load system key */ - hw_desc_init(&desc[*seq_size]); - set_cipher_mode(&desc[*seq_size], ctx_p->cipher_mode); - set_cipher_config0(&desc[*seq_size], direction); - set_din_type(&desc[*seq_size], DMA_DLLI, ctx_p->user.key_dma_addr, - CC_MULTI2_SYSTEM_KEY_SIZE, NS_BIT); - set_flow_mode(&desc[*seq_size], ctx_p->flow_mode); - set_setup_mode(&desc[*seq_size], SETUP_LOAD_KEY0); - (*seq_size)++; - - /* load data key */ - hw_desc_init(&desc[*seq_size]); - set_din_type(&desc[*seq_size], DMA_DLLI, - (ctx_p->user.key_dma_addr + CC_MULTI2_SYSTEM_KEY_SIZE), - CC_MULTI2_DATA_KEY_SIZE, NS_BIT); - set_multi2_num_rounds(&desc[*seq_size], ctx_p->key_round_number); - set_flow_mode(&desc[*seq_size], ctx_p->flow_mode); - set_cipher_mode(&desc[*seq_size], ctx_p->cipher_mode); - set_cipher_config0(&desc[*seq_size], direction); - set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE0); - (*seq_size)++; - - /* Set state */ - hw_desc_init(&desc[*seq_size]); - set_din_type(&desc[*seq_size], DMA_DLLI, req_ctx->gen_ctx.iv_dma_addr, - ivsize, NS_BIT); - set_cipher_config0(&desc[*seq_size], direction); - set_flow_mode(&desc[*seq_size], ctx_p->flow_mode); - set_cipher_mode(&desc[*seq_size], ctx_p->cipher_mode); - set_setup_mode(&desc[*seq_size], SETUP_LOAD_STATE1); - (*seq_size)++; -} -#endif /*SSI_CC_HAS_MULTI2*/ - -static inline void -ssi_blkcipher_create_data_desc( - struct crypto_tfm *tfm, - struct blkcipher_req_ctx *req_ctx, - struct scatterlist *dst, struct scatterlist *src, - unsigned int nbytes, - void *areq, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_setup_cipher_data(struct crypto_tfm *tfm, + struct blkcipher_req_ctx *req_ctx, + struct scatterlist *dst, + struct scatterlist *src, unsigned int nbytes, + void *areq, struct cc_hw_desc desc[], + unsigned int *seq_size) { - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); + struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx_p->drvdata); unsigned int flow_mode = ctx_p->flow_mode; @@ -609,17 +516,12 @@ ssi_blkcipher_create_data_desc( case S_DIN_to_DES: flow_mode = DIN_DES_DOUT; break; -#if SSI_CC_HAS_MULTI2 - case S_DIN_to_MULTI2: - flow_mode = DIN_MULTI2_DOUT; - break; -#endif /*SSI_CC_HAS_MULTI2*/ default: dev_err(dev, "invalid flow mode, flow_mode = %d\n", flow_mode); return; } /* Process */ - if (likely(req_ctx->dma_buf_type == SSI_DMA_BUF_DLLI)) { + if (req_ctx->dma_buf_type == CC_DMA_BUF_DLLI) { dev_dbg(dev, " data params addr %pad length 0x%X\n", &sg_dma_address(src), nbytes); dev_dbg(dev, " data params addr %pad length 0x%X\n", @@ -682,68 +584,63 @@ ssi_blkcipher_create_data_desc( } } -static int ssi_blkcipher_complete(struct device *dev, - struct ssi_ablkcipher_ctx *ctx_p, - struct blkcipher_req_ctx *req_ctx, - struct scatterlist *dst, - struct scatterlist *src, - unsigned int ivsize, - void *areq, - void __iomem *cc_base) +static void cc_cipher_complete(struct device *dev, void *cc_req, int err) { - int completion_error = 0; + struct ablkcipher_request *areq = (struct ablkcipher_request *)cc_req; + struct scatterlist *dst = areq->dst; + struct scatterlist *src = areq->src; + struct blkcipher_req_ctx *req_ctx = ablkcipher_request_ctx(areq); + struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(areq); + unsigned int ivsize = crypto_ablkcipher_ivsize(tfm); struct ablkcipher_request *req = (struct ablkcipher_request *)areq; - ssi_buffer_mgr_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); + cc_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); kfree(req_ctx->iv); - if (areq) { - /* - * The crypto API expects us to set the req->info to the last - * ciphertext block. For encrypt, simply copy from the result. - * For decrypt, we must copy from a saved buffer since this - * could be an in-place decryption operation and the src is - * lost by this point. - */ - if (req_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) { - memcpy(req->info, req_ctx->backup_info, ivsize); - kfree(req_ctx->backup_info); - } else { - scatterwalk_map_and_copy(req->info, req->dst, - (req->nbytes - ivsize), - ivsize, 0); - } - - ablkcipher_request_complete(areq, completion_error); - return 0; + /* + * The crypto API expects us to set the req->info to the last + * ciphertext block. For encrypt, simply copy from the result. + * For decrypt, we must copy from a saved buffer since this + * could be an in-place decryption operation and the src is + * lost by this point. + */ + if (req_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) { + memcpy(req->info, req_ctx->backup_info, ivsize); + kfree(req_ctx->backup_info); + } else if (!err) { + scatterwalk_map_and_copy(req->info, req->dst, + (req->nbytes - ivsize), ivsize, 0); } - return completion_error; + + ablkcipher_request_complete(areq, err); } -static int ssi_blkcipher_process( - struct crypto_tfm *tfm, - struct blkcipher_req_ctx *req_ctx, - struct scatterlist *dst, struct scatterlist *src, - unsigned int nbytes, - void *info, //req info - unsigned int ivsize, - void *areq, - enum drv_crypto_direction direction) +static int cc_cipher_process(struct ablkcipher_request *req, + enum drv_crypto_direction direction) { - struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm); + struct crypto_ablkcipher *ablk_tfm = crypto_ablkcipher_reqtfm(req); + struct crypto_tfm *tfm = crypto_ablkcipher_tfm(ablk_tfm); + struct blkcipher_req_ctx *req_ctx = ablkcipher_request_ctx(req); + unsigned int ivsize = crypto_ablkcipher_ivsize(ablk_tfm); + struct scatterlist *dst = req->dst; + struct scatterlist *src = req->src; + unsigned int nbytes = req->nbytes; + void *info = req->info; + struct cc_cipher_ctx *ctx_p = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx_p->drvdata); struct cc_hw_desc desc[MAX_ABLKCIPHER_SEQ_LEN]; - struct ssi_crypto_req ssi_req = {}; + struct cc_crypto_req cc_req = {}; int rc, seq_len = 0, cts_restore_flag = 0; + gfp_t flags = cc_gfp_flags(&req->base); - dev_dbg(dev, "%s areq=%p info=%p nbytes=%d\n", + dev_dbg(dev, "%s req=%p info=%p nbytes=%d\n", ((direction == DRV_CRYPTO_DIRECTION_ENCRYPT) ? - "Encrypt" : "Decrypt"), areq, info, nbytes); + "Encrypt" : "Decrypt"), req, info, nbytes); /* STAT_PHASE_0: Init and sanity checks */ /* TODO: check data length according to mode */ - if (unlikely(validate_data_size(ctx_p, nbytes))) { + if (validate_data_size(ctx_p, nbytes)) { dev_err(dev, "Unsupported data size %d.\n", nbytes); crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_BLOCK_LEN); rc = -EINVAL; @@ -758,7 +655,7 @@ static int ssi_blkcipher_process( /* The IV we are handed may be allocted from the stack so * we must copy it to a DMAable buffer before use. */ - req_ctx->iv = kmalloc(ivsize, GFP_KERNEL); + req_ctx->iv = kmalloc(ivsize, flags); if (!req_ctx->iv) { rc = -ENOMEM; goto exit_process; @@ -766,17 +663,18 @@ static int ssi_blkcipher_process( memcpy(req_ctx->iv, info, ivsize); /*For CTS in case of data size aligned to 16 use CBC mode*/ - if (((nbytes % AES_BLOCK_SIZE) == 0) && (ctx_p->cipher_mode == DRV_CIPHER_CBC_CTS)) { + if (((nbytes % AES_BLOCK_SIZE) == 0) && + ctx_p->cipher_mode == DRV_CIPHER_CBC_CTS) { ctx_p->cipher_mode = DRV_CIPHER_CBC; cts_restore_flag = 1; } /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_ablkcipher_complete; - ssi_req.user_arg = (void *)areq; + cc_req.user_cb = (void *)cc_cipher_complete; + cc_req.user_arg = (void *)req; #ifdef ENABLE_CYCLE_COUNT - ssi_req.op_type = (direction == DRV_CRYPTO_DIRECTION_DECRYPT) ? + cc_req.op_type = (direction == DRV_CRYPTO_DIRECTION_DECRYPT) ? STAT_OP_TYPE_DECODE : STAT_OP_TYPE_ENCODE; #endif @@ -786,10 +684,9 @@ static int ssi_blkcipher_process( /* STAT_PHASE_1: Map buffers */ - rc = ssi_buffer_mgr_map_blkcipher_request(ctx_p->drvdata, req_ctx, - ivsize, nbytes, req_ctx->iv, - src, dst); - if (unlikely(rc != 0)) { + rc = cc_map_blkcipher_request(ctx_p->drvdata, req_ctx, ivsize, nbytes, + req_ctx->iv, src, dst, flags); + if (rc) { dev_err(dev, "map_request() failed\n"); goto exit_process; } @@ -797,50 +694,35 @@ static int ssi_blkcipher_process( /* STAT_PHASE_2: Create sequence */ /* Setup processing */ -#if SSI_CC_HAS_MULTI2 - if (ctx_p->flow_mode == S_DIN_to_MULTI2) - ssi_blkcipher_create_multi2_setup_desc(tfm, req_ctx, ivsize, - desc, &seq_len); - else -#endif /*SSI_CC_HAS_MULTI2*/ - ssi_blkcipher_create_setup_desc(tfm, req_ctx, ivsize, nbytes, - desc, &seq_len); + cc_setup_cipher_desc(tfm, req_ctx, ivsize, nbytes, desc, &seq_len); /* Data processing */ - ssi_blkcipher_create_data_desc(tfm, req_ctx, dst, src, nbytes, areq, - desc, &seq_len); + cc_setup_cipher_data(tfm, req_ctx, dst, src, nbytes, req, desc, + &seq_len); /* do we need to generate IV? */ if (req_ctx->is_giv) { - ssi_req.ivgen_dma_addr[0] = req_ctx->gen_ctx.iv_dma_addr; - ssi_req.ivgen_dma_addr_len = 1; + cc_req.ivgen_dma_addr[0] = req_ctx->gen_ctx.iv_dma_addr; + cc_req.ivgen_dma_addr_len = 1; /* set the IV size (8/16 B long)*/ - ssi_req.ivgen_size = ivsize; + cc_req.ivgen_size = ivsize; } /* STAT_PHASE_3: Lock HW and push sequence */ - rc = send_request(ctx_p->drvdata, &ssi_req, desc, seq_len, (!areq) ? 0 : 1); - if (areq) { - if (unlikely(rc != -EINPROGRESS)) { - /* Failed to send the request or request completed synchronously */ - ssi_buffer_mgr_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); - } - - } else { - if (rc != 0) { - ssi_buffer_mgr_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); - } else { - rc = ssi_blkcipher_complete(dev, ctx_p, req_ctx, dst, - src, ivsize, NULL, - ctx_p->drvdata->cc_base); - } + rc = cc_send_request(ctx_p->drvdata, &cc_req, desc, seq_len, + &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { + /* Failed to send the request or request completed + * synchronously + */ + cc_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst); } exit_process: - if (cts_restore_flag != 0) + if (cts_restore_flag) ctx_p->cipher_mode = DRV_CIPHER_CBC_CTS; - if (rc != -EINPROGRESS) { + if (rc != -EINPROGRESS && rc != -EBUSY) { kfree(req_ctx->backup_info); kfree(req_ctx->iv); } @@ -848,60 +730,28 @@ exit_process: return rc; } -static void ssi_ablkcipher_complete(struct device *dev, void *ssi_req, void __iomem *cc_base) -{ - struct ablkcipher_request *areq = (struct ablkcipher_request *)ssi_req; - struct blkcipher_req_ctx *req_ctx = ablkcipher_request_ctx(areq); - struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(areq); - struct ssi_ablkcipher_ctx *ctx_p = crypto_ablkcipher_ctx(tfm); - unsigned int ivsize = crypto_ablkcipher_ivsize(tfm); - - ssi_blkcipher_complete(dev, ctx_p, req_ctx, areq->dst, areq->src, - ivsize, areq, cc_base); -} - -/* Async wrap functions */ - -static int ssi_ablkcipher_init(struct crypto_tfm *tfm) -{ - struct ablkcipher_tfm *ablktfm = &tfm->crt_ablkcipher; - - ablktfm->reqsize = sizeof(struct blkcipher_req_ctx); - - return ssi_blkcipher_init(tfm); -} - -static int ssi_ablkcipher_setkey(struct crypto_ablkcipher *tfm, - const u8 *key, - unsigned int keylen) -{ - return ssi_blkcipher_setkey(crypto_ablkcipher_tfm(tfm), key, keylen); -} - -static int ssi_ablkcipher_encrypt(struct ablkcipher_request *req) +static int cc_cipher_encrypt(struct ablkcipher_request *req) { - struct crypto_ablkcipher *ablk_tfm = crypto_ablkcipher_reqtfm(req); - struct crypto_tfm *tfm = crypto_ablkcipher_tfm(ablk_tfm); struct blkcipher_req_ctx *req_ctx = ablkcipher_request_ctx(req); - unsigned int ivsize = crypto_ablkcipher_ivsize(ablk_tfm); req_ctx->is_giv = false; + req_ctx->backup_info = NULL; - return ssi_blkcipher_process(tfm, req_ctx, req->dst, req->src, req->nbytes, req->info, ivsize, (void *)req, DRV_CRYPTO_DIRECTION_ENCRYPT); + return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_ENCRYPT); } -static int ssi_ablkcipher_decrypt(struct ablkcipher_request *req) +static int cc_cipher_decrypt(struct ablkcipher_request *req) { struct crypto_ablkcipher *ablk_tfm = crypto_ablkcipher_reqtfm(req); - struct crypto_tfm *tfm = crypto_ablkcipher_tfm(ablk_tfm); struct blkcipher_req_ctx *req_ctx = ablkcipher_request_ctx(req); unsigned int ivsize = crypto_ablkcipher_ivsize(ablk_tfm); + gfp_t flags = cc_gfp_flags(&req->base); /* * Allocate and save the last IV sized bytes of the source, which will * be lost in case of in-place decryption and might be needed for CTS. */ - req_ctx->backup_info = kmalloc(ivsize, GFP_KERNEL); + req_ctx->backup_info = kmalloc(ivsize, flags); if (!req_ctx->backup_info) return -ENOMEM; @@ -909,22 +759,20 @@ static int ssi_ablkcipher_decrypt(struct ablkcipher_request *req) (req->nbytes - ivsize), ivsize, 0); req_ctx->is_giv = false; - return ssi_blkcipher_process(tfm, req_ctx, req->dst, req->src, req->nbytes, req->info, ivsize, (void *)req, DRV_CRYPTO_DIRECTION_DECRYPT); + return cc_cipher_process(req, DRV_CRYPTO_DIRECTION_DECRYPT); } /* DX Block cipher alg */ -static struct ssi_alg_template blkcipher_algs[] = { -/* Async template */ -#if SSI_CC_HAS_AES_XTS +static struct cc_alg_template blkcipher_algs[] = { { .name = "xts(aes)", .driver_name = "xts-aes-dx", .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -939,9 +787,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_BULK_DU_512, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -955,9 +803,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_BULK_DU_4096, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -965,17 +813,15 @@ static struct ssi_alg_template blkcipher_algs[] = { .cipher_mode = DRV_CIPHER_XTS, .flow_mode = S_DIN_to_AES, }, -#endif /*SSI_CC_HAS_AES_XTS*/ -#if SSI_CC_HAS_AES_ESSIV { .name = "essiv(aes)", .driver_name = "essiv-aes-dx", .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -989,9 +835,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_BULK_DU_512, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -1005,9 +851,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_BULK_DU_4096, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -1015,17 +861,15 @@ static struct ssi_alg_template blkcipher_algs[] = { .cipher_mode = DRV_CIPHER_ESSIV, .flow_mode = S_DIN_to_AES, }, -#endif /*SSI_CC_HAS_AES_ESSIV*/ -#if SSI_CC_HAS_AES_BITLOCKER { .name = "bitlocker(aes)", .driver_name = "bitlocker-aes-dx", .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -1039,9 +883,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_BULK_DU_512, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -1055,9 +899,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_BULK_DU_4096, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE * 2, .max_keysize = AES_MAX_KEY_SIZE * 2, .ivsize = AES_BLOCK_SIZE, @@ -1065,16 +909,15 @@ static struct ssi_alg_template blkcipher_algs[] = { .cipher_mode = DRV_CIPHER_BITLOCKER, .flow_mode = S_DIN_to_AES, }, -#endif /*SSI_CC_HAS_AES_BITLOCKER*/ { .name = "ecb(aes)", .driver_name = "ecb-aes-dx", .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, .ivsize = 0, @@ -1088,9 +931,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, .ivsize = AES_BLOCK_SIZE, @@ -1104,9 +947,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, .ivsize = AES_BLOCK_SIZE, @@ -1114,16 +957,15 @@ static struct ssi_alg_template blkcipher_algs[] = { .cipher_mode = DRV_CIPHER_OFB, .flow_mode = S_DIN_to_AES, }, -#if SSI_CC_HAS_AES_CTS { .name = "cts1(cbc(aes))", .driver_name = "cts1-cbc-aes-dx", .blocksize = AES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, .ivsize = AES_BLOCK_SIZE, @@ -1131,16 +973,15 @@ static struct ssi_alg_template blkcipher_algs[] = { .cipher_mode = DRV_CIPHER_CBC_CTS, .flow_mode = S_DIN_to_AES, }, -#endif { .name = "ctr(aes)", .driver_name = "ctr-aes-dx", .blocksize = 1, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, .ivsize = AES_BLOCK_SIZE, @@ -1154,9 +995,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = DES3_EDE_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = DES3_EDE_KEY_SIZE, .max_keysize = DES3_EDE_KEY_SIZE, .ivsize = DES3_EDE_BLOCK_SIZE, @@ -1170,9 +1011,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = DES3_EDE_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = DES3_EDE_KEY_SIZE, .max_keysize = DES3_EDE_KEY_SIZE, .ivsize = 0, @@ -1186,9 +1027,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = DES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = DES_KEY_SIZE, .max_keysize = DES_KEY_SIZE, .ivsize = DES_BLOCK_SIZE, @@ -1202,9 +1043,9 @@ static struct ssi_alg_template blkcipher_algs[] = { .blocksize = DES_BLOCK_SIZE, .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, + .setkey = cc_cipher_setkey, + .encrypt = cc_cipher_encrypt, + .decrypt = cc_cipher_decrypt, .min_keysize = DES_KEY_SIZE, .max_keysize = DES_KEY_SIZE, .ivsize = 0, @@ -1212,47 +1053,13 @@ static struct ssi_alg_template blkcipher_algs[] = { .cipher_mode = DRV_CIPHER_ECB, .flow_mode = S_DIN_to_DES, }, -#if SSI_CC_HAS_MULTI2 - { - .name = "cbc(multi2)", - .driver_name = "cbc-multi2-dx", - .blocksize = CC_MULTI2_BLOCK_SIZE, - .type = CRYPTO_ALG_TYPE_ABLKCIPHER, - .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_decrypt, - .min_keysize = CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE + 1, - .max_keysize = CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE + 1, - .ivsize = CC_MULTI2_IV_SIZE, - }, - .cipher_mode = DRV_MULTI2_CBC, - .flow_mode = S_DIN_to_MULTI2, - }, - { - .name = "ofb(multi2)", - .driver_name = "ofb-multi2-dx", - .blocksize = 1, - .type = CRYPTO_ALG_TYPE_ABLKCIPHER, - .template_ablkcipher = { - .setkey = ssi_ablkcipher_setkey, - .encrypt = ssi_ablkcipher_encrypt, - .decrypt = ssi_ablkcipher_encrypt, - .min_keysize = CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE + 1, - .max_keysize = CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE + 1, - .ivsize = CC_MULTI2_IV_SIZE, - }, - .cipher_mode = DRV_MULTI2_OFB, - .flow_mode = S_DIN_to_MULTI2, - }, -#endif /*SSI_CC_HAS_MULTI2*/ }; static -struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template - *template, struct device *dev) +struct cc_crypto_alg *cc_cipher_create_alg(struct cc_alg_template *template, + struct device *dev) { - struct ssi_crypto_alg *t_alg; + struct cc_crypto_alg *t_alg; struct crypto_alg *alg; t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL); @@ -1265,13 +1072,13 @@ struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s", template->driver_name); alg->cra_module = THIS_MODULE; - alg->cra_priority = SSI_CRA_PRIO; + alg->cra_priority = CC_CRA_PRIO; alg->cra_blocksize = template->blocksize; alg->cra_alignmask = 0; - alg->cra_ctxsize = sizeof(struct ssi_ablkcipher_ctx); + alg->cra_ctxsize = sizeof(struct cc_cipher_ctx); - alg->cra_init = ssi_ablkcipher_init; - alg->cra_exit = ssi_blkcipher_exit; + alg->cra_init = cc_cipher_init; + alg->cra_exit = cc_cipher_exit; alg->cra_type = &crypto_ablkcipher_type; alg->cra_ablkcipher = template->template_ablkcipher; alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY | @@ -1283,11 +1090,11 @@ struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template return t_alg; } -int ssi_ablkcipher_free(struct ssi_drvdata *drvdata) +int cc_cipher_free(struct cc_drvdata *drvdata) { - struct ssi_crypto_alg *t_alg, *n; - struct ssi_blkcipher_handle *blkcipher_handle = - drvdata->blkcipher_handle; + struct cc_crypto_alg *t_alg, *n; + struct cc_cipher_handle *blkcipher_handle = drvdata->blkcipher_handle; + if (blkcipher_handle) { /* Remove registered algs */ list_for_each_entry_safe(t_alg, n, @@ -1303,10 +1110,10 @@ int ssi_ablkcipher_free(struct ssi_drvdata *drvdata) return 0; } -int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata) +int cc_cipher_alloc(struct cc_drvdata *drvdata) { - struct ssi_blkcipher_handle *ablkcipher_handle; - struct ssi_crypto_alg *t_alg; + struct cc_cipher_handle *ablkcipher_handle; + struct cc_crypto_alg *t_alg; struct device *dev = drvdata_to_dev(drvdata); int rc = -ENOMEM; int alg; @@ -1323,7 +1130,7 @@ int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata) ARRAY_SIZE(blkcipher_algs)); for (alg = 0; alg < ARRAY_SIZE(blkcipher_algs); alg++) { dev_dbg(dev, "creating %s\n", blkcipher_algs[alg].driver_name); - t_alg = ssi_ablkcipher_create_alg(&blkcipher_algs[alg], dev); + t_alg = cc_cipher_create_alg(&blkcipher_algs[alg], dev); if (IS_ERR(t_alg)) { rc = PTR_ERR(t_alg); dev_err(dev, "%s alg allocation failed\n", @@ -1337,7 +1144,7 @@ int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata) rc = crypto_register_alg(&t_alg->crypto_alg); dev_dbg(dev, "%s alg registration rc = %x\n", t_alg->crypto_alg.cra_driver_name, rc); - if (unlikely(rc != 0)) { + if (rc) { dev_err(dev, "%s alg registration failed\n", t_alg->crypto_alg.cra_driver_name); kfree(t_alg); @@ -1352,6 +1159,6 @@ int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata) return 0; fail0: - ssi_ablkcipher_free(drvdata); + cc_cipher_free(drvdata); return rc; } diff --git a/drivers/staging/ccree/cc_cipher.h b/drivers/staging/ccree/cc_cipher.h new file mode 100644 index 000000000000..4c181c721723 --- /dev/null +++ b/drivers/staging/ccree/cc_cipher.h @@ -0,0 +1,74 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_cipher.h + * ARM CryptoCell Cipher Crypto API + */ + +#ifndef __CC_CIPHER_H__ +#define __CC_CIPHER_H__ + +#include <linux/kernel.h> +#include <crypto/algapi.h> +#include "cc_driver.h" +#include "cc_buffer_mgr.h" + +/* Crypto cipher flags */ +#define CC_CRYPTO_CIPHER_KEY_KFDE0 BIT(0) +#define CC_CRYPTO_CIPHER_KEY_KFDE1 BIT(1) +#define CC_CRYPTO_CIPHER_KEY_KFDE2 BIT(2) +#define CC_CRYPTO_CIPHER_KEY_KFDE3 BIT(3) +#define CC_CRYPTO_CIPHER_DU_SIZE_512B BIT(4) + +#define CC_CRYPTO_CIPHER_KEY_KFDE_MASK (CC_CRYPTO_CIPHER_KEY_KFDE0 | \ + CC_CRYPTO_CIPHER_KEY_KFDE1 | \ + CC_CRYPTO_CIPHER_KEY_KFDE2 | \ + CC_CRYPTO_CIPHER_KEY_KFDE3) + +struct blkcipher_req_ctx { + struct async_gen_req_ctx gen_ctx; + enum cc_req_dma_buf_type dma_buf_type; + u32 in_nents; + u32 in_mlli_nents; + u32 out_nents; + u32 out_mlli_nents; + u8 *backup_info; /*store iv for generated IV flow*/ + u8 *iv; + bool is_giv; + struct mlli_params mlli_params; +}; + +int cc_cipher_alloc(struct cc_drvdata *drvdata); + +int cc_cipher_free(struct cc_drvdata *drvdata); + +#ifndef CRYPTO_ALG_BULK_MASK + +#define CRYPTO_ALG_BULK_DU_512 0x00002000 +#define CRYPTO_ALG_BULK_DU_4096 0x00004000 +#define CRYPTO_ALG_BULK_MASK (CRYPTO_ALG_BULK_DU_512 |\ + CRYPTO_ALG_BULK_DU_4096) +#endif /* CRYPTO_ALG_BULK_MASK */ + +#ifdef CRYPTO_TFM_REQ_HW_KEY + +static inline bool cc_is_hw_key(struct crypto_tfm *tfm) +{ + return (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_HW_KEY); +} + +#else + +struct arm_hw_key_info { + int hw_key1; + int hw_key2; +}; + +static inline bool cc_is_hw_key(struct crypto_tfm *tfm) +{ + return false; +} + +#endif /* CRYPTO_TFM_REQ_HW_KEY */ + +#endif /*__CC_CIPHER_H__*/ diff --git a/drivers/staging/ccree/cc_crypto_ctx.h b/drivers/staging/ccree/cc_crypto_ctx.h index 591f6fdadc59..eb16842d7db9 100644 --- a/drivers/staging/ccree/cc_crypto_ctx.h +++ b/drivers/staging/ccree/cc_crypto_ctx.h @@ -1,18 +1,5 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #ifndef _CC_CRYPTO_CTX_H_ #define _CC_CRYPTO_CTX_H_ @@ -21,7 +8,7 @@ /* context size */ #ifndef CC_CTX_SIZE_LOG2 -#if (CC_SUPPORT_SHA > 256) +#if (CC_DEV_SHA_MAX > 256) #define CC_CTX_SIZE_LOG2 8 #else #define CC_CTX_SIZE_LOG2 7 @@ -72,7 +59,7 @@ #define CC_SHA384_BLOCK_SIZE 128 #define CC_SHA512_BLOCK_SIZE 128 -#if (CC_SUPPORT_SHA > 256) +#if (CC_DEV_SHA_MAX > 256) #define CC_DIGEST_SIZE_MAX CC_SHA512_DIGEST_SIZE #define CC_HASH_BLOCK_SIZE_MAX CC_SHA512_BLOCK_SIZE /*1024b*/ #else /* Only up to SHA256 */ @@ -82,15 +69,6 @@ #define CC_HMAC_BLOCK_SIZE_MAX CC_HASH_BLOCK_SIZE_MAX -#define CC_MULTI2_SYSTEM_KEY_SIZE 32 -#define CC_MULTI2_DATA_KEY_SIZE 8 -#define CC_MULTI2_SYSTEM_N_DATA_KEY_SIZE \ - (CC_MULTI2_SYSTEM_KEY_SIZE + CC_MULTI2_DATA_KEY_SIZE) -#define CC_MULTI2_BLOCK_SIZE 8 -#define CC_MULTI2_IV_SIZE 8 -#define CC_MULTI2_MIN_NUM_ROUNDS 8 -#define CC_MULTI2_MAX_NUM_ROUNDS 128 - #define CC_DRV_ALG_MAX_BLOCK_SIZE CC_HASH_BLOCK_SIZE_MAX enum drv_engine_type { @@ -168,14 +146,6 @@ enum drv_hash_hw_mode { DRV_HASH_HW_RESERVE32B = S32_MAX }; -enum drv_multi2_mode { - DRV_MULTI2_NULL = -1, - DRV_MULTI2_ECB = 0, - DRV_MULTI2_CBC = 1, - DRV_MULTI2_OFB = 2, - DRV_MULTI2_RESERVE32B = S32_MAX -}; - /* drv_crypto_key_type[1:0] is mapped to cipher_do[1:0] */ /* drv_crypto_key_type[2] is mapped to cipher_config2 */ enum drv_crypto_key_type { diff --git a/drivers/staging/ccree/cc_debugfs.c b/drivers/staging/ccree/cc_debugfs.c new file mode 100644 index 000000000000..08f8db489cf0 --- /dev/null +++ b/drivers/staging/ccree/cc_debugfs.c @@ -0,0 +1,101 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#include <linux/kernel.h> +#include <linux/debugfs.h> +#include <linux/stringify.h> +#include "cc_driver.h" +#include "cc_crypto_ctx.h" +#include "cc_debugfs.h" + +struct cc_debugfs_ctx { + struct dentry *dir; +}; + +#define CC_DEBUG_REG(_X) { \ + .name = __stringify(_X),\ + .offset = CC_REG(_X) \ + } + +/* + * This is a global var for the dentry of the + * debugfs ccree/ dir. It is not tied down to + * a specific instance of ccree, hence it is + * global. + */ +static struct dentry *cc_debugfs_dir; + +static struct debugfs_reg32 debug_regs[] = { + CC_DEBUG_REG(HOST_SIGNATURE), + CC_DEBUG_REG(HOST_IRR), + CC_DEBUG_REG(HOST_POWER_DOWN_EN), + CC_DEBUG_REG(AXIM_MON_ERR), + CC_DEBUG_REG(DSCRPTR_QUEUE_CONTENT), + CC_DEBUG_REG(HOST_IMR), + CC_DEBUG_REG(AXIM_CFG), + CC_DEBUG_REG(AXIM_CACHE_PARAMS), + CC_DEBUG_REG(HOST_VERSION), + CC_DEBUG_REG(GPR_HOST), + CC_DEBUG_REG(AXIM_MON_COMP), +}; + +int __init cc_debugfs_global_init(void) +{ + cc_debugfs_dir = debugfs_create_dir("ccree", NULL); + + return !cc_debugfs_dir; +} + +void __exit cc_debugfs_global_fini(void) +{ + debugfs_remove(cc_debugfs_dir); +} + +int cc_debugfs_init(struct cc_drvdata *drvdata) +{ + struct device *dev = drvdata_to_dev(drvdata); + struct cc_debugfs_ctx *ctx; + struct debugfs_regset32 *regset; + struct dentry *file; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + regset = devm_kzalloc(dev, sizeof(*regset), GFP_KERNEL); + if (!regset) + return -ENOMEM; + + regset->regs = debug_regs; + regset->nregs = ARRAY_SIZE(debug_regs); + regset->base = drvdata->cc_base; + + ctx->dir = debugfs_create_dir(drvdata->plat_dev->name, cc_debugfs_dir); + if (!ctx->dir) + return -ENFILE; + + file = debugfs_create_regset32("regs", 0400, ctx->dir, regset); + if (!file) { + debugfs_remove(ctx->dir); + return -ENFILE; + } + + file = debugfs_create_bool("coherent", 0400, ctx->dir, + &drvdata->coherent); + + if (!file) { + debugfs_remove_recursive(ctx->dir); + return -ENFILE; + } + + drvdata->debugfs = ctx; + + return 0; +} + +void cc_debugfs_fini(struct cc_drvdata *drvdata) +{ + struct cc_debugfs_ctx *ctx = (struct cc_debugfs_ctx *)drvdata->debugfs; + + debugfs_remove_recursive(ctx->dir); +} diff --git a/drivers/staging/ccree/cc_debugfs.h b/drivers/staging/ccree/cc_debugfs.h new file mode 100644 index 000000000000..5b5320eca7d2 --- /dev/null +++ b/drivers/staging/ccree/cc_debugfs.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#ifndef __CC_DEBUGFS_H__ +#define __CC_DEBUGFS_H__ + +#ifdef CONFIG_DEBUG_FS +int cc_debugfs_global_init(void); +void cc_debugfs_global_fini(void); + +int cc_debugfs_init(struct cc_drvdata *drvdata); +void cc_debugfs_fini(struct cc_drvdata *drvdata); + +#else + +static inline int cc_debugfs_global_init(void) +{ + return 0; +} + +static inline void cc_debugfs_global_fini(void) {} + +static inline int cc_debugfs_init(struct cc_drvdata *drvdata) +{ + return 0; +} + +static inline void cc_debugfs_fini(struct cc_drvdata *drvdata) {} + +#endif + +#endif /*__CC_SYSFS_H__*/ diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/cc_driver.c index 1a3c481fa92a..3a1cb0c98648 100644 --- a/drivers/staging/ccree/ssi_driver.c +++ b/drivers/staging/ccree/cc_driver.c @@ -1,96 +1,56 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/crypto.h> -#include <crypto/algapi.h> -#include <crypto/aes.h> -#include <crypto/sha.h> -#include <crypto/aead.h> -#include <crypto/authenc.h> -#include <crypto/scatterwalk.h> -#include <crypto/internal/skcipher.h> - -#include <linux/init.h> #include <linux/moduleparam.h> #include <linux/types.h> -#include <linux/random.h> -#include <linux/ioport.h> #include <linux/interrupt.h> -#include <linux/fcntl.h> -#include <linux/poll.h> -#include <linux/proc_fs.h> -#include <linux/mutex.h> -#include <linux/sysctl.h> -#include <linux/fs.h> -#include <linux/cdev.h> #include <linux/platform_device.h> -#include <linux/mm.h> -#include <linux/delay.h> -#include <linux/dma-mapping.h> -#include <linux/dmapool.h> -#include <linux/list.h> #include <linux/slab.h> #include <linux/spinlock.h> -#include <linux/pm.h> - -/* cache.h required for L1_CACHE_ALIGN() and cache_line_size() */ -#include <linux/cache.h> -#include <linux/io.h> -#include <linux/uaccess.h> -#include <linux/pagemap.h> -#include <linux/sched.h> -#include <linux/random.h> #include <linux/of.h> #include <linux/clk.h> #include <linux/of_address.h> -#include "ssi_config.h" -#include "ssi_driver.h" -#include "ssi_request_mgr.h" -#include "ssi_buffer_mgr.h" -#include "ssi_sysfs.h" -#include "ssi_cipher.h" -#include "ssi_aead.h" -#include "ssi_hash.h" -#include "ssi_ivgen.h" -#include "ssi_sram_mgr.h" -#include "ssi_pm.h" -#include "ssi_fips.h" - -#ifdef DX_DUMP_BYTES -void dump_byte_array(const char *name, const u8 *buf, size_t len) +#include "cc_driver.h" +#include "cc_request_mgr.h" +#include "cc_buffer_mgr.h" +#include "cc_debugfs.h" +#include "cc_cipher.h" +#include "cc_aead.h" +#include "cc_hash.h" +#include "cc_ivgen.h" +#include "cc_sram_mgr.h" +#include "cc_pm.h" +#include "cc_fips.h" + +bool cc_dump_desc; +module_param_named(dump_desc, cc_dump_desc, bool, 0600); +MODULE_PARM_DESC(cc_dump_desc, "Dump descriptors to kernel log as debugging aid"); + +bool cc_dump_bytes; +module_param_named(dump_bytes, cc_dump_bytes, bool, 0600); +MODULE_PARM_DESC(cc_dump_bytes, "Dump buffers to kernel log as debugging aid"); + +void __dump_byte_array(const char *name, const u8 *buf, size_t len) { - char prefix[NAME_LEN]; + char prefix[64]; if (!buf) return; - snprintf(prefix, sizeof(prefix), "%s[%lu]: ", name, len); + snprintf(prefix, sizeof(prefix), "%s[%zu]: ", name, len); - print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_ADDRESS, 16, 1, len, - false); + print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_ADDRESS, 16, 1, buf, + len, false); } -#endif static irqreturn_t cc_isr(int irq, void *dev_id) { - struct ssi_drvdata *drvdata = (struct ssi_drvdata *)dev_id; + struct cc_drvdata *drvdata = (struct cc_drvdata *)dev_id; struct device *dev = drvdata_to_dev(drvdata); u32 irr; u32 imr; @@ -100,7 +60,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id) /* read the interrupt status */ irr = cc_ioread(drvdata, CC_REG(HOST_IRR)); dev_dbg(dev, "Got IRR=0x%08X\n", irr); - if (unlikely(irr == 0)) { /* Probably shared interrupt line */ + if (irr == 0) { /* Probably shared interrupt line */ dev_err(dev, "Got interrupt with empty IRR\n"); return IRQ_NONE; } @@ -111,23 +71,27 @@ static irqreturn_t cc_isr(int irq, void *dev_id) drvdata->irq = irr; /* Completion interrupt - most probable */ - if (likely((irr & SSI_COMP_IRQ_MASK) != 0)) { - /* Mask AXI completion interrupt - will be unmasked in Deferred service handler */ - cc_iowrite(drvdata, CC_REG(HOST_IMR), imr | SSI_COMP_IRQ_MASK); - irr &= ~SSI_COMP_IRQ_MASK; + if (irr & CC_COMP_IRQ_MASK) { + /* Mask AXI completion interrupt - will be unmasked in + * Deferred service handler + */ + cc_iowrite(drvdata, CC_REG(HOST_IMR), imr | CC_COMP_IRQ_MASK); + irr &= ~CC_COMP_IRQ_MASK; complete_request(drvdata); } -#ifdef CC_SUPPORT_FIPS +#ifdef CONFIG_CRYPTO_FIPS /* TEE FIPS interrupt */ - if (likely((irr & SSI_GPR0_IRQ_MASK) != 0)) { - /* Mask interrupt - will be unmasked in Deferred service handler */ - cc_iowrite(drvdata, CC_REG(HOST_IMR), imr | SSI_GPR0_IRQ_MASK); - irr &= ~SSI_GPR0_IRQ_MASK; + if (irr & CC_GPR0_IRQ_MASK) { + /* Mask interrupt - will be unmasked in Deferred service + * handler + */ + cc_iowrite(drvdata, CC_REG(HOST_IMR), imr | CC_GPR0_IRQ_MASK); + irr &= ~CC_GPR0_IRQ_MASK; fips_handler(drvdata); } #endif /* AXI error interrupt */ - if (unlikely((irr & SSI_AXI_ERR_IRQ_MASK) != 0)) { + if (irr & CC_AXI_ERR_IRQ_MASK) { u32 axi_err; /* Read the AXI error ID */ @@ -135,10 +99,10 @@ static irqreturn_t cc_isr(int irq, void *dev_id) dev_dbg(dev, "AXI completion error: axim_mon_err=0x%08X\n", axi_err); - irr &= ~SSI_AXI_ERR_IRQ_MASK; + irr &= ~CC_AXI_ERR_IRQ_MASK; } - if (unlikely(irr != 0)) { + if (irr) { dev_dbg(dev, "IRR includes unknown cause bits (0x%08X)\n", irr); /* Just warning */ @@ -147,14 +111,14 @@ static irqreturn_t cc_isr(int irq, void *dev_id) return IRQ_HANDLED; } -int init_cc_regs(struct ssi_drvdata *drvdata, bool is_probe) +int init_cc_regs(struct cc_drvdata *drvdata, bool is_probe) { unsigned int val, cache_params; struct device *dev = drvdata_to_dev(drvdata); /* Unmask all AXI interrupt sources AXI_CFG1 register */ val = cc_ioread(drvdata, CC_REG(AXIM_CFG)); - cc_iowrite(drvdata, CC_REG(AXIM_CFG), val & ~SSI_AXI_IRQ_MASK); + cc_iowrite(drvdata, CC_REG(AXIM_CFG), val & ~CC_AXI_IRQ_MASK); dev_dbg(dev, "AXIM_CFG=0x%08X\n", cc_ioread(drvdata, CC_REG(AXIM_CFG))); @@ -164,21 +128,10 @@ int init_cc_regs(struct ssi_drvdata *drvdata, bool is_probe) cc_iowrite(drvdata, CC_REG(HOST_ICR), val); /* Unmask relevant interrupt cause */ - val = (unsigned int)(~(SSI_COMP_IRQ_MASK | SSI_AXI_ERR_IRQ_MASK | - SSI_GPR0_IRQ_MASK)); + val = (unsigned int)(~(CC_COMP_IRQ_MASK | CC_AXI_ERR_IRQ_MASK | + CC_GPR0_IRQ_MASK)); cc_iowrite(drvdata, CC_REG(HOST_IMR), val); -#ifdef DX_HOST_IRQ_TIMER_INIT_VAL_REG_OFFSET -#ifdef DX_IRQ_DELAY - /* Set CC IRQ delay */ - cc_iowrite(drvdata, CC_REG(HOST_IRQ_TIMER_INIT_VAL), DX_IRQ_DELAY); -#endif - if (cc_ioread(drvdata, CC_REG(HOST_IRQ_TIMER_INIT_VAL)) > 0) { - dev_dbg(dev, "irq_delay=%d CC cycles\n", - cc_ioread(drvdata, CC_REG(HOST_IRQ_TIMER_INIT_VAL))); - } -#endif - cache_params = (drvdata->coherent ? CC_COHERENT_CACHE_PARAMS : 0x0); val = cc_ioread(drvdata, CC_REG(AXIM_CACHE_PARAMS)); @@ -199,12 +152,11 @@ int init_cc_regs(struct ssi_drvdata *drvdata, bool is_probe) static int init_cc_resources(struct platform_device *plat_dev) { struct resource *req_mem_cc_regs = NULL; - void __iomem *cc_base = NULL; - struct ssi_drvdata *new_drvdata; + struct cc_drvdata *new_drvdata; struct device *dev = &plat_dev->dev; struct device_node *np = dev->of_node; u32 signature_val; - dma_addr_t dma_mask; + u64 dma_mask; int rc = 0; new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL); @@ -222,18 +174,14 @@ static int init_cc_resources(struct platform_device *plat_dev) req_mem_cc_regs = platform_get_resource(plat_dev, IORESOURCE_MEM, 0); /* Map registers space */ new_drvdata->cc_base = devm_ioremap_resource(dev, req_mem_cc_regs); - if (IS_ERR(new_drvdata->cc_base)) { - dev_err(dev, "Failed to ioremap registers"); + if (IS_ERR(new_drvdata->cc_base)) return PTR_ERR(new_drvdata->cc_base); - } dev_dbg(dev, "Got MEM resource (%s): %pR\n", req_mem_cc_regs->name, req_mem_cc_regs); dev_dbg(dev, "CC registers mapped from %pa to 0x%p\n", &req_mem_cc_regs->start, new_drvdata->cc_base); - cc_base = new_drvdata->cc_base; - /* Then IRQ */ new_drvdata->irq = platform_get_irq(plat_dev, 0); if (new_drvdata->irq < 0) { @@ -250,10 +198,12 @@ static int init_cc_resources(struct platform_device *plat_dev) } dev_dbg(dev, "Registered to IRQ: %d\n", new_drvdata->irq); + init_completion(&new_drvdata->hw_queue_avail); + if (!plat_dev->dev.dma_mask) plat_dev->dev.dma_mask = &plat_dev->dev.coherent_dma_mask; - dma_mask = (dma_addr_t)(DMA_BIT_MASK(DMA_BIT_MASK_LEN)); + dma_mask = DMA_BIT_MASK(DMA_BIT_MASK_LEN); while (dma_mask > 0x7fffffffUL) { if (dma_supported(&plat_dev->dev, dma_mask)) { rc = dma_set_coherent_mask(&plat_dev->dev, dma_mask); @@ -264,8 +214,7 @@ static int init_cc_resources(struct platform_device *plat_dev) } if (rc) { - dev_err(dev, "Failed in dma_set_mask, mask=%par\n", - &dma_mask); + dev_err(dev, "Failed in dma_set_mask, mask=%par\n", &dma_mask); return rc; } @@ -277,9 +226,9 @@ static int init_cc_resources(struct platform_device *plat_dev) /* Verify correct mapping */ signature_val = cc_ioread(new_drvdata, CC_REG(HOST_SIGNATURE)); - if (signature_val != DX_DEV_SIGNATURE) { + if (signature_val != CC_DEV_SIGNATURE) { dev_err(dev, "Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n", - signature_val, (u32)DX_DEV_SIGNATURE); + signature_val, (u32)CC_DEV_SIGNATURE); rc = -EINVAL; goto post_clk_err; } @@ -287,84 +236,82 @@ static int init_cc_resources(struct platform_device *plat_dev) /* Display HW versions */ dev_info(dev, "ARM CryptoCell %s Driver: HW version 0x%08X, Driver version %s\n", - SSI_DEV_NAME_STR, + CC_DEV_NAME_STR, cc_ioread(new_drvdata, CC_REG(HOST_VERSION)), DRV_MODULE_VERSION); rc = init_cc_regs(new_drvdata, true); - if (unlikely(rc != 0)) { + if (rc) { dev_err(dev, "init_cc_regs failed\n"); goto post_clk_err; } -#ifdef ENABLE_CC_SYSFS - rc = ssi_sysfs_init(&dev->kobj, new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "init_stat_db failed\n"); + rc = cc_debugfs_init(new_drvdata); + if (rc) { + dev_err(dev, "Failed registering debugfs interface\n"); goto post_regs_err; } -#endif - rc = ssi_fips_init(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "SSI_FIPS_INIT failed 0x%x\n", rc); - goto post_sysfs_err; + rc = cc_fips_init(new_drvdata); + if (rc) { + dev_err(dev, "CC_FIPS_INIT failed 0x%x\n", rc); + goto post_debugfs_err; } - rc = ssi_sram_mgr_init(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "ssi_sram_mgr_init failed\n"); + rc = cc_sram_mgr_init(new_drvdata); + if (rc) { + dev_err(dev, "cc_sram_mgr_init failed\n"); goto post_fips_init_err; } new_drvdata->mlli_sram_addr = - ssi_sram_mgr_alloc(new_drvdata, MAX_MLLI_BUFF_SIZE); - if (unlikely(new_drvdata->mlli_sram_addr == NULL_SRAM_ADDR)) { + cc_sram_alloc(new_drvdata, MAX_MLLI_BUFF_SIZE); + if (new_drvdata->mlli_sram_addr == NULL_SRAM_ADDR) { dev_err(dev, "Failed to alloc MLLI Sram buffer\n"); rc = -ENOMEM; goto post_sram_mgr_err; } - rc = request_mgr_init(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "request_mgr_init failed\n"); + rc = cc_req_mgr_init(new_drvdata); + if (rc) { + dev_err(dev, "cc_req_mgr_init failed\n"); goto post_sram_mgr_err; } - rc = ssi_buffer_mgr_init(new_drvdata); - if (unlikely(rc != 0)) { + rc = cc_buffer_mgr_init(new_drvdata); + if (rc) { dev_err(dev, "buffer_mgr_init failed\n"); goto post_req_mgr_err; } - rc = ssi_power_mgr_init(new_drvdata); - if (unlikely(rc != 0)) { + rc = cc_pm_init(new_drvdata); + if (rc) { dev_err(dev, "ssi_power_mgr_init failed\n"); goto post_buf_mgr_err; } - rc = ssi_ivgen_init(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "ssi_ivgen_init failed\n"); + rc = cc_ivgen_init(new_drvdata); + if (rc) { + dev_err(dev, "cc_ivgen_init failed\n"); goto post_power_mgr_err; } /* Allocate crypto algs */ - rc = ssi_ablkcipher_alloc(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "ssi_ablkcipher_alloc failed\n"); + rc = cc_cipher_alloc(new_drvdata); + if (rc) { + dev_err(dev, "cc_cipher_alloc failed\n"); goto post_ivgen_err; } /* hash must be allocated before aead since hash exports APIs */ - rc = ssi_hash_alloc(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "ssi_hash_alloc failed\n"); + rc = cc_hash_alloc(new_drvdata); + if (rc) { + dev_err(dev, "cc_hash_alloc failed\n"); goto post_cipher_err; } - rc = ssi_aead_alloc(new_drvdata); - if (unlikely(rc != 0)) { - dev_err(dev, "ssi_aead_alloc failed\n"); + rc = cc_aead_alloc(new_drvdata); + if (rc) { + dev_err(dev, "cc_aead_alloc failed\n"); goto post_hash_err; } @@ -377,25 +324,23 @@ static int init_cc_resources(struct platform_device *plat_dev) return 0; post_hash_err: - ssi_hash_free(new_drvdata); + cc_hash_free(new_drvdata); post_cipher_err: - ssi_ablkcipher_free(new_drvdata); + cc_cipher_free(new_drvdata); post_ivgen_err: - ssi_ivgen_fini(new_drvdata); + cc_ivgen_fini(new_drvdata); post_power_mgr_err: - ssi_power_mgr_fini(new_drvdata); + cc_pm_fini(new_drvdata); post_buf_mgr_err: - ssi_buffer_mgr_fini(new_drvdata); + cc_buffer_mgr_fini(new_drvdata); post_req_mgr_err: - request_mgr_fini(new_drvdata); + cc_req_mgr_fini(new_drvdata); post_sram_mgr_err: - ssi_sram_mgr_fini(new_drvdata); + cc_sram_mgr_fini(new_drvdata); post_fips_init_err: - ssi_fips_fini(new_drvdata); -post_sysfs_err: -#ifdef ENABLE_CC_SYSFS - ssi_sysfs_fini(); -#endif + cc_fips_fini(new_drvdata); +post_debugfs_err: + cc_debugfs_fini(new_drvdata); post_regs_err: fini_cc_regs(new_drvdata); post_clk_err: @@ -403,7 +348,7 @@ post_clk_err: return rc; } -void fini_cc_regs(struct ssi_drvdata *drvdata) +void fini_cc_regs(struct cc_drvdata *drvdata) { /* Mask all interrupts */ cc_iowrite(drvdata, CC_REG(HOST_IMR), 0xFFFFFFFF); @@ -411,26 +356,24 @@ void fini_cc_regs(struct ssi_drvdata *drvdata) static void cleanup_cc_resources(struct platform_device *plat_dev) { - struct ssi_drvdata *drvdata = - (struct ssi_drvdata *)platform_get_drvdata(plat_dev); - - ssi_aead_free(drvdata); - ssi_hash_free(drvdata); - ssi_ablkcipher_free(drvdata); - ssi_ivgen_fini(drvdata); - ssi_power_mgr_fini(drvdata); - ssi_buffer_mgr_fini(drvdata); - request_mgr_fini(drvdata); - ssi_sram_mgr_fini(drvdata); - ssi_fips_fini(drvdata); -#ifdef ENABLE_CC_SYSFS - ssi_sysfs_fini(); -#endif + struct cc_drvdata *drvdata = + (struct cc_drvdata *)platform_get_drvdata(plat_dev); + + cc_aead_free(drvdata); + cc_hash_free(drvdata); + cc_cipher_free(drvdata); + cc_ivgen_fini(drvdata); + cc_pm_fini(drvdata); + cc_buffer_mgr_fini(drvdata); + cc_req_mgr_fini(drvdata); + cc_sram_mgr_fini(drvdata); + cc_fips_fini(drvdata); + cc_debugfs_fini(drvdata); fini_cc_regs(drvdata); cc_clk_off(drvdata); } -int cc_clk_on(struct ssi_drvdata *drvdata) +int cc_clk_on(struct cc_drvdata *drvdata) { struct clk *clk = drvdata->clk; int rc; @@ -446,7 +389,7 @@ int cc_clk_on(struct ssi_drvdata *drvdata) return 0; } -void cc_clk_off(struct ssi_drvdata *drvdata) +void cc_clk_off(struct cc_drvdata *drvdata) { struct clk *clk = drvdata->clk; @@ -461,23 +404,10 @@ static int cc7x_probe(struct platform_device *plat_dev) { int rc; struct device *dev = &plat_dev->dev; -#if defined(CONFIG_ARM) && defined(CC_DEBUG) - u32 ctr, cacheline_size; - - asm volatile("mrc p15, 0, %0, c0, c0, 1" : "=r" (ctr)); - cacheline_size = 4 << ((ctr >> 16) & 0xf); - dev_dbg(dev, "CP15(L1_CACHE_BYTES) = %u , Kconfig(L1_CACHE_BYTES) = %u\n", - cacheline_size, L1_CACHE_BYTES); - - asm volatile("mrc p15, 0, %0, c0, c0, 0" : "=r" (ctr)); - dev_dbg(dev, "Main ID register (MIDR): Implementer 0x%02X, Arch 0x%01X, Part 0x%03X, Rev r%dp%d\n", - (ctr >> 24), (ctr >> 16) & 0xF, (ctr >> 4) & 0xFFF, - (ctr >> 20) & 0xF, ctr & 0xF); -#endif /* Map registers space */ rc = init_cc_resources(plat_dev); - if (rc != 0) + if (rc) return rc; dev_info(dev, "ARM ccree device initialized\n"); @@ -498,38 +428,44 @@ static int cc7x_remove(struct platform_device *plat_dev) return 0; } -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) -static const struct dev_pm_ops arm_cc7x_driver_pm = { - SET_RUNTIME_PM_OPS(ssi_power_mgr_runtime_suspend, ssi_power_mgr_runtime_resume, NULL) -}; -#endif - -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) -#define DX_DRIVER_RUNTIME_PM (&arm_cc7x_driver_pm) -#else -#define DX_DRIVER_RUNTIME_PM NULL -#endif - -#ifdef CONFIG_OF static const struct of_device_id arm_cc7x_dev_of_match[] = { {.compatible = "arm,cryptocell-712-ree"}, {} }; MODULE_DEVICE_TABLE(of, arm_cc7x_dev_of_match); -#endif static struct platform_driver cc7x_driver = { .driver = { .name = "cc7xree", -#ifdef CONFIG_OF .of_match_table = arm_cc7x_dev_of_match, +#ifdef CONFIG_PM + .pm = &ccree_pm, #endif - .pm = DX_DRIVER_RUNTIME_PM, }, .probe = cc7x_probe, .remove = cc7x_remove, }; -module_platform_driver(cc7x_driver); + +static int __init ccree_init(void) +{ + int ret; + + cc_hash_global_init(); + + ret = cc_debugfs_global_init(); + if (ret) + return ret; + + return platform_driver_register(&cc7x_driver); +} +module_init(ccree_init); + +static void __exit ccree_exit(void) +{ + platform_driver_unregister(&cc7x_driver); + cc_debugfs_global_fini(); +} +module_exit(ccree_exit); /* Module description */ MODULE_DESCRIPTION("ARM TrustZone CryptoCell REE Driver"); diff --git a/drivers/staging/ccree/cc_driver.h b/drivers/staging/ccree/cc_driver.h new file mode 100644 index 000000000000..773ac591c45c --- /dev/null +++ b/drivers/staging/ccree/cc_driver.h @@ -0,0 +1,194 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_driver.h + * ARM CryptoCell Linux Crypto Driver + */ + +#ifndef __CC_DRIVER_H__ +#define __CC_DRIVER_H__ + +#ifdef COMP_IN_WQ +#include <linux/workqueue.h> +#else +#include <linux/interrupt.h> +#endif +#include <linux/dma-mapping.h> +#include <crypto/algapi.h> +#include <crypto/internal/skcipher.h> +#include <crypto/aes.h> +#include <crypto/sha.h> +#include <crypto/aead.h> +#include <crypto/authenc.h> +#include <crypto/hash.h> +#include <linux/version.h> +#include <linux/clk.h> +#include <linux/platform_device.h> + +/* Registers definitions from shared/hw/ree_include */ +#include "cc_host_regs.h" +#define CC_DEV_SHA_MAX 512 +#include "cc_crypto_ctx.h" +#include "cc_hw_queue_defs.h" +#include "cc_sram_mgr.h" + +extern bool cc_dump_desc; +extern bool cc_dump_bytes; + +#define DRV_MODULE_VERSION "3.0" + +#define CC_DEV_NAME_STR "cc715ree" +#define CC_COHERENT_CACHE_PARAMS 0xEEE + +/* Maximum DMA mask supported by IP */ +#define DMA_BIT_MASK_LEN 48 + +#define CC_DEV_SIGNATURE 0xDCC71200UL + +#define CC_AXI_IRQ_MASK ((1 << CC_AXIM_CFG_BRESPMASK_BIT_SHIFT) | \ + (1 << CC_AXIM_CFG_RRESPMASK_BIT_SHIFT) | \ + (1 << CC_AXIM_CFG_INFLTMASK_BIT_SHIFT) | \ + (1 << CC_AXIM_CFG_COMPMASK_BIT_SHIFT)) + +#define CC_AXI_ERR_IRQ_MASK BIT(CC_HOST_IRR_AXI_ERR_INT_BIT_SHIFT) + +#define CC_COMP_IRQ_MASK BIT(CC_HOST_IRR_AXIM_COMP_INT_BIT_SHIFT) + +#define AXIM_MON_COMP_VALUE GENMASK(CC_AXIM_MON_COMP_VALUE_BIT_SIZE + \ + CC_AXIM_MON_COMP_VALUE_BIT_SHIFT, \ + CC_AXIM_MON_COMP_VALUE_BIT_SHIFT) + +/* Register name mangling macro */ +#define CC_REG(reg_name) CC_ ## reg_name ## _REG_OFFSET + +/* TEE FIPS status interrupt */ +#define CC_GPR0_IRQ_MASK BIT(CC_HOST_IRR_GPR0_BIT_SHIFT) + +#define CC_CRA_PRIO 3000 + +#define MIN_HW_QUEUE_SIZE 50 /* Minimum size required for proper function */ + +#define MAX_REQUEST_QUEUE_SIZE 4096 +#define MAX_MLLI_BUFF_SIZE 2080 +#define MAX_ICV_NENTS_SUPPORTED 2 + +/* Definitions for HW descriptors DIN/DOUT fields */ +#define NS_BIT 1 +#define AXI_ID 0 +/* AXI_ID is not actually the AXI ID of the transaction but the value of AXI_ID + * field in the HW descriptor. The DMA engine +8 that value. + */ + +#define CC_MAX_IVGEN_DMA_ADDRESSES 3 +struct cc_crypto_req { + void (*user_cb)(struct device *dev, void *req, int err); + void *user_arg; + dma_addr_t ivgen_dma_addr[CC_MAX_IVGEN_DMA_ADDRESSES]; + /* For the first 'ivgen_dma_addr_len' addresses of this array, + * generated IV would be placed in it by send_request(). + * Same generated IV for all addresses! + */ + /* Amount of 'ivgen_dma_addr' elements to be filled. */ + unsigned int ivgen_dma_addr_len; + /* The generated IV size required, 8/16 B allowed. */ + unsigned int ivgen_size; + struct completion seq_compl; /* request completion */ +}; + +/** + * struct cc_drvdata - driver private data context + * @cc_base: virt address of the CC registers + * @irq: device IRQ number + * @irq_mask: Interrupt mask shadow (1 for masked interrupts) + * @fw_ver: SeP loaded firmware version + */ +struct cc_drvdata { + void __iomem *cc_base; + int irq; + u32 irq_mask; + u32 fw_ver; + struct completion hw_queue_avail; /* wait for HW queue availability */ + struct platform_device *plat_dev; + cc_sram_addr_t mlli_sram_addr; + void *buff_mgr_handle; + void *hash_handle; + void *aead_handle; + void *blkcipher_handle; + void *request_mgr_handle; + void *fips_handle; + void *ivgen_handle; + void *sram_mgr_handle; + void *debugfs; + struct clk *clk; + bool coherent; +}; + +struct cc_crypto_alg { + struct list_head entry; + int cipher_mode; + int flow_mode; /* Note: currently, refers to the cipher mode only. */ + int auth_mode; + struct cc_drvdata *drvdata; + struct crypto_alg crypto_alg; + struct aead_alg aead_alg; +}; + +struct cc_alg_template { + char name[CRYPTO_MAX_ALG_NAME]; + char driver_name[CRYPTO_MAX_ALG_NAME]; + unsigned int blocksize; + u32 type; + union { + struct ablkcipher_alg ablkcipher; + struct aead_alg aead; + struct blkcipher_alg blkcipher; + struct cipher_alg cipher; + struct compress_alg compress; + } template_u; + int cipher_mode; + int flow_mode; /* Note: currently, refers to the cipher mode only. */ + int auth_mode; + struct cc_drvdata *drvdata; +}; + +struct async_gen_req_ctx { + dma_addr_t iv_dma_addr; + enum drv_crypto_direction op_type; +}; + +static inline struct device *drvdata_to_dev(struct cc_drvdata *drvdata) +{ + return &drvdata->plat_dev->dev; +} + +void __dump_byte_array(const char *name, const u8 *buf, size_t len); +static inline void dump_byte_array(const char *name, const u8 *the_array, + size_t size) +{ + if (cc_dump_bytes) + __dump_byte_array(name, the_array, size); +} + +int init_cc_regs(struct cc_drvdata *drvdata, bool is_probe); +void fini_cc_regs(struct cc_drvdata *drvdata); +int cc_clk_on(struct cc_drvdata *drvdata); +void cc_clk_off(struct cc_drvdata *drvdata); + +static inline void cc_iowrite(struct cc_drvdata *drvdata, u32 reg, u32 val) +{ + iowrite32(val, (drvdata->cc_base + reg)); +} + +static inline u32 cc_ioread(struct cc_drvdata *drvdata, u32 reg) +{ + return ioread32(drvdata->cc_base + reg); +} + +static inline gfp_t cc_gfp_flags(struct crypto_async_request *req) +{ + return (req->flags & CRYPTO_TFM_REQ_MAY_SLEEP) ? + GFP_KERNEL : GFP_ATOMIC; +} + +#endif /*__CC_DRIVER_H__*/ + diff --git a/drivers/staging/ccree/ssi_fips.c b/drivers/staging/ccree/cc_fips.c index 4aea99fa129f..de08af976b7f 100644 --- a/drivers/staging/ccree/ssi_fips.c +++ b/drivers/staging/ccree/cc_fips.c @@ -1,36 +1,22 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #include <linux/kernel.h> #include <linux/fips.h> -#include "ssi_config.h" -#include "ssi_driver.h" -#include "ssi_fips.h" +#include "cc_driver.h" +#include "cc_fips.h" static void fips_dsr(unsigned long devarg); -struct ssi_fips_handle { +struct cc_fips_handle { struct tasklet_struct tasklet; }; /* The function called once at driver entry point to check * whether TEE FIPS error occurred. */ -static bool cc_get_tee_fips_status(struct ssi_drvdata *drvdata) +static bool cc_get_tee_fips_status(struct cc_drvdata *drvdata) { u32 reg; @@ -42,7 +28,7 @@ static bool cc_get_tee_fips_status(struct ssi_drvdata *drvdata) * This function should push the FIPS REE library status towards the TEE library * by writing the error state to HOST_GPR0 register. */ -void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool status) +void cc_set_ree_fips_status(struct cc_drvdata *drvdata, bool status) { int val = CC_FIPS_SYNC_REE_STATUS; @@ -51,9 +37,9 @@ void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool status) cc_iowrite(drvdata, CC_REG(HOST_GPR0), val); } -void ssi_fips_fini(struct ssi_drvdata *drvdata) +void cc_fips_fini(struct cc_drvdata *drvdata) { - struct ssi_fips_handle *fips_h = drvdata->fips_handle; + struct cc_fips_handle *fips_h = drvdata->fips_handle; if (!fips_h) return; /* Not allocated */ @@ -65,10 +51,9 @@ void ssi_fips_fini(struct ssi_drvdata *drvdata) drvdata->fips_handle = NULL; } -void fips_handler(struct ssi_drvdata *drvdata) +void fips_handler(struct cc_drvdata *drvdata) { - struct ssi_fips_handle *fips_handle_ptr = - drvdata->fips_handle; + struct cc_fips_handle *fips_handle_ptr = drvdata->fips_handle; tasklet_schedule(&fips_handle_ptr->tasklet); } @@ -84,11 +69,11 @@ static inline void tee_fips_error(struct device *dev) /* Deferred service handler, run as interrupt-fired tasklet */ static void fips_dsr(unsigned long devarg) { - struct ssi_drvdata *drvdata = (struct ssi_drvdata *)devarg; + struct cc_drvdata *drvdata = (struct cc_drvdata *)devarg; struct device *dev = drvdata_to_dev(drvdata); u32 irq, state, val; - irq = (drvdata->irq & (SSI_GPR0_IRQ_MASK)); + irq = (drvdata->irq & (CC_GPR0_IRQ_MASK)); if (irq) { state = cc_ioread(drvdata, CC_REG(GPR_HOST)); @@ -105,9 +90,9 @@ static void fips_dsr(unsigned long devarg) } /* The function called once at driver entry point .*/ -int ssi_fips_init(struct ssi_drvdata *p_drvdata) +int cc_fips_init(struct cc_drvdata *p_drvdata) { - struct ssi_fips_handle *fips_h; + struct cc_fips_handle *fips_h; struct device *dev = drvdata_to_dev(p_drvdata); fips_h = kzalloc(sizeof(*fips_h), GFP_KERNEL); diff --git a/drivers/staging/ccree/cc_fips.h b/drivers/staging/ccree/cc_fips.h new file mode 100644 index 000000000000..0d520030095b --- /dev/null +++ b/drivers/staging/ccree/cc_fips.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#ifndef __CC_FIPS_H__ +#define __CC_FIPS_H__ + +#ifdef CONFIG_CRYPTO_FIPS + +enum cc_fips_status { + CC_FIPS_SYNC_MODULE_OK = 0x0, + CC_FIPS_SYNC_MODULE_ERROR = 0x1, + CC_FIPS_SYNC_REE_STATUS = 0x4, + CC_FIPS_SYNC_TEE_STATUS = 0x8, + CC_FIPS_SYNC_STATUS_RESERVE32B = S32_MAX +}; + +int cc_fips_init(struct cc_drvdata *p_drvdata); +void cc_fips_fini(struct cc_drvdata *drvdata); +void fips_handler(struct cc_drvdata *drvdata); +void cc_set_ree_fips_status(struct cc_drvdata *drvdata, bool ok); + +#else /* CONFIG_CRYPTO_FIPS */ + +static inline int cc_fips_init(struct cc_drvdata *p_drvdata) +{ + return 0; +} + +static inline void cc_fips_fini(struct cc_drvdata *drvdata) {} +static inline void cc_set_ree_fips_status(struct cc_drvdata *drvdata, + bool ok) {} +static inline void fips_handler(struct cc_drvdata *drvdata) {} + +#endif /* CONFIG_CRYPTO_FIPS */ + +#endif /*__CC_FIPS_H__*/ + diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/cc_hash.c index 2035835b62dc..8afc39f10bb3 100644 --- a/drivers/staging/ccree/ssi_hash.c +++ b/drivers/staging/ccree/cc_hash.c @@ -1,44 +1,26 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/platform_device.h> #include <crypto/algapi.h> #include <crypto/hash.h> -#include <crypto/sha.h> #include <crypto/md5.h> #include <crypto/internal/hash.h> -#include "ssi_config.h" -#include "ssi_driver.h" -#include "ssi_request_mgr.h" -#include "ssi_buffer_mgr.h" -#include "ssi_sysfs.h" -#include "ssi_hash.h" -#include "ssi_sram_mgr.h" +#include "cc_driver.h" +#include "cc_request_mgr.h" +#include "cc_buffer_mgr.h" +#include "cc_hash.h" +#include "cc_sram_mgr.h" -#define SSI_MAX_AHASH_SEQ_LEN 12 -#define SSI_MAX_HASH_OPAD_TMP_KEYS_SIZE MAX(SSI_MAX_HASH_BLCK_SIZE, 3 * AES_BLOCK_SIZE) +#define CC_MAX_HASH_SEQ_LEN 12 +#define CC_MAX_OPAD_KEYS_SIZE CC_MAX_HASH_BLCK_SIZE -struct ssi_hash_handle { - ssi_sram_addr_t digest_len_sram_addr; /* const value in SRAM*/ - ssi_sram_addr_t larval_digest_sram_addr; /* const value in SRAM */ +struct cc_hash_handle { + cc_sram_addr_t digest_len_sram_addr; /* const value in SRAM*/ + cc_sram_addr_t larval_digest_sram_addr; /* const value in SRAM */ struct list_head hash_list; - struct completion init_comp; }; static const u32 digest_len_init[] = { @@ -53,32 +35,31 @@ static const u32 sha224_init[] = { static const u32 sha256_init[] = { SHA256_H7, SHA256_H6, SHA256_H5, SHA256_H4, SHA256_H3, SHA256_H2, SHA256_H1, SHA256_H0 }; -#if (DX_DEV_SHA_MAX > 256) +#if (CC_DEV_SHA_MAX > 256) static const u32 digest_len_sha512_init[] = { 0x00000080, 0x00000000, 0x00000000, 0x00000000 }; -static const u64 sha384_init[] = { +static u64 sha384_init[] = { SHA384_H7, SHA384_H6, SHA384_H5, SHA384_H4, SHA384_H3, SHA384_H2, SHA384_H1, SHA384_H0 }; -static const u64 sha512_init[] = { +static u64 sha512_init[] = { SHA512_H7, SHA512_H6, SHA512_H5, SHA512_H4, SHA512_H3, SHA512_H2, SHA512_H1, SHA512_H0 }; #endif -static void ssi_hash_create_xcbc_setup( - struct ahash_request *areq, - struct cc_hw_desc desc[], - unsigned int *seq_size); +static void cc_setup_xcbc(struct ahash_request *areq, struct cc_hw_desc desc[], + unsigned int *seq_size); + +static void cc_setup_cmac(struct ahash_request *areq, struct cc_hw_desc desc[], + unsigned int *seq_size); -static void ssi_hash_create_cmac_setup(struct ahash_request *areq, - struct cc_hw_desc desc[], - unsigned int *seq_size); +static const void *cc_larval_digest(struct device *dev, u32 mode); -struct ssi_hash_alg { +struct cc_hash_alg { struct list_head entry; int hash_mode; int hw_mode; int inter_digestsize; - struct ssi_drvdata *drvdata; + struct cc_drvdata *drvdata; struct ahash_alg ahash_alg; }; @@ -88,13 +69,13 @@ struct hash_key_req_ctx { }; /* hash per-session context */ -struct ssi_hash_ctx { - struct ssi_drvdata *drvdata; +struct cc_hash_ctx { + struct cc_drvdata *drvdata; /* holds the origin digest; the digest after "setkey" if HMAC,* * the initial digest if HASH. */ - u8 digest_buff[SSI_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned; - u8 opad_tmp_keys_buff[SSI_MAX_HASH_OPAD_TMP_KEYS_SIZE] ____cacheline_aligned; + u8 digest_buff[CC_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned; + u8 opad_tmp_keys_buff[CC_MAX_OPAD_KEYS_SIZE] ____cacheline_aligned; dma_addr_t opad_tmp_keys_dma_addr ____cacheline_aligned; dma_addr_t digest_buff_dma_addr; @@ -107,33 +88,27 @@ struct ssi_hash_ctx { bool is_hmac; }; -static void ssi_hash_create_data_desc( - struct ahash_req_ctx *areq_ctx, - struct ssi_hash_ctx *ctx, - unsigned int flow_mode, struct cc_hw_desc desc[], - bool is_not_last_data, - unsigned int *seq_size); +static void cc_set_desc(struct ahash_req_ctx *areq_ctx, struct cc_hash_ctx *ctx, + unsigned int flow_mode, struct cc_hw_desc desc[], + bool is_not_last_data, unsigned int *seq_size); -static inline void ssi_set_hash_endianity(u32 mode, struct cc_hw_desc *desc) +static void cc_set_endianity(u32 mode, struct cc_hw_desc *desc) { - if (unlikely((mode == DRV_HASH_MD5) || - (mode == DRV_HASH_SHA384) || - (mode == DRV_HASH_SHA512))) { + if (mode == DRV_HASH_MD5 || mode == DRV_HASH_SHA384 || + mode == DRV_HASH_SHA512) { set_bytes_swap(desc, 1); } else { set_cipher_config0(desc, HASH_DIGEST_RESULT_LITTLE_ENDIAN); } } -static int ssi_hash_map_result(struct device *dev, - struct ahash_req_ctx *state, - unsigned int digestsize) +static int cc_map_result(struct device *dev, struct ahash_req_ctx *state, + unsigned int digestsize) { state->digest_result_dma_addr = - dma_map_single(dev, (void *)state->digest_result_buff, - digestsize, - DMA_BIDIRECTIONAL); - if (unlikely(dma_mapping_error(dev, state->digest_result_dma_addr))) { + dma_map_single(dev, state->digest_result_buff, + digestsize, DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, state->digest_result_dma_addr)) { dev_err(dev, "Mapping digest result buffer %u B for DMA failed\n", digestsize); return -ENOMEM; @@ -145,302 +120,331 @@ static int ssi_hash_map_result(struct device *dev, return 0; } -static int ssi_hash_map_request(struct device *dev, - struct ahash_req_ctx *state, - struct ssi_hash_ctx *ctx) +static void cc_init_req(struct device *dev, struct ahash_req_ctx *state, + struct cc_hash_ctx *ctx) { bool is_hmac = ctx->is_hmac; - ssi_sram_addr_t larval_digest_addr = ssi_ahash_get_larval_digest_sram_addr( - ctx->drvdata, ctx->hash_mode); - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc; - int rc = -ENOMEM; - - state->buff0 = kzalloc(SSI_MAX_HASH_BLCK_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->buff0) - goto fail0; - - state->buff1 = kzalloc(SSI_MAX_HASH_BLCK_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->buff1) - goto fail_buff0; - - state->digest_result_buff = kzalloc(SSI_MAX_HASH_DIGEST_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->digest_result_buff) - goto fail_buff1; - - state->digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL | GFP_DMA); - if (!state->digest_buff) - goto fail_digest_result_buff; - - dev_dbg(dev, "Allocated digest-buffer in context ctx->digest_buff=@%p\n", - state->digest_buff); - if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) { - state->digest_bytes_len = kzalloc(HASH_LEN_SIZE, GFP_KERNEL | GFP_DMA); - if (!state->digest_bytes_len) - goto fail1; - dev_dbg(dev, "Allocated digest-bytes-len in context state->>digest_bytes_len=@%p\n", - state->digest_bytes_len); - } else { - state->digest_bytes_len = NULL; - } - - state->opad_digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL | GFP_DMA); - if (!state->opad_digest_buff) - goto fail2; - - dev_dbg(dev, "Allocated opad-digest-buffer in context state->digest_bytes_len=@%p\n", - state->opad_digest_buff); - - state->digest_buff_dma_addr = dma_map_single(dev, (void *)state->digest_buff, ctx->inter_digestsize, DMA_BIDIRECTIONAL); - if (dma_mapping_error(dev, state->digest_buff_dma_addr)) { - dev_err(dev, "Mapping digest len %d B at va=%pK for DMA failed\n", - ctx->inter_digestsize, state->digest_buff); - goto fail3; - } - dev_dbg(dev, "Mapped digest %d B at va=%pK to dma=%pad\n", - ctx->inter_digestsize, state->digest_buff, - &state->digest_buff_dma_addr); + memset(state, 0, sizeof(*state)); if (is_hmac) { - dma_sync_single_for_cpu(dev, ctx->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); - if ((ctx->hw_mode == DRV_CIPHER_XCBC_MAC) || (ctx->hw_mode == DRV_CIPHER_CMAC)) { - memset(state->digest_buff, 0, ctx->inter_digestsize); - } else { /*sha*/ - memcpy(state->digest_buff, ctx->digest_buff, ctx->inter_digestsize); -#if (DX_DEV_SHA_MAX > 256) - if (unlikely((ctx->hash_mode == DRV_HASH_SHA512) || (ctx->hash_mode == DRV_HASH_SHA384))) - memcpy(state->digest_bytes_len, digest_len_sha512_init, HASH_LEN_SIZE); + if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC && + ctx->hw_mode != DRV_CIPHER_CMAC) { + dma_sync_single_for_cpu(dev, ctx->digest_buff_dma_addr, + ctx->inter_digestsize, + DMA_BIDIRECTIONAL); + + memcpy(state->digest_buff, ctx->digest_buff, + ctx->inter_digestsize); +#if (CC_DEV_SHA_MAX > 256) + if (ctx->hash_mode == DRV_HASH_SHA512 || + ctx->hash_mode == DRV_HASH_SHA384) + memcpy(state->digest_bytes_len, + digest_len_sha512_init, HASH_LEN_SIZE); else - memcpy(state->digest_bytes_len, digest_len_init, HASH_LEN_SIZE); + memcpy(state->digest_bytes_len, + digest_len_init, HASH_LEN_SIZE); #else - memcpy(state->digest_bytes_len, digest_len_init, HASH_LEN_SIZE); + memcpy(state->digest_bytes_len, digest_len_init, + HASH_LEN_SIZE); #endif } - dma_sync_single_for_device(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); if (ctx->hash_mode != DRV_HASH_NULL) { - dma_sync_single_for_cpu(dev, ctx->opad_tmp_keys_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); - memcpy(state->opad_digest_buff, ctx->opad_tmp_keys_buff, ctx->inter_digestsize); + dma_sync_single_for_cpu(dev, + ctx->opad_tmp_keys_dma_addr, + ctx->inter_digestsize, + DMA_BIDIRECTIONAL); + memcpy(state->opad_digest_buff, + ctx->opad_tmp_keys_buff, ctx->inter_digestsize); } } else { /*hash*/ - /* Copy the initial digests if hash flow. The SRAM contains the - * initial digests in the expected order for all SHA* - */ - hw_desc_init(&desc); - set_din_sram(&desc, larval_digest_addr, ctx->inter_digestsize); - set_dout_dlli(&desc, state->digest_buff_dma_addr, - ctx->inter_digestsize, NS_BIT, 0); - set_flow_mode(&desc, BYPASS); - - rc = send_request(ctx->drvdata, &ssi_req, &desc, 1, 0); - if (unlikely(rc != 0)) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - goto fail4; - } + /* Copy the initial digests if hash flow. */ + const void *larval = cc_larval_digest(dev, ctx->hash_mode); + + memcpy(state->digest_buff, larval, ctx->inter_digestsize); + } +} + +static int cc_map_req(struct device *dev, struct ahash_req_ctx *state, + struct cc_hash_ctx *ctx) +{ + bool is_hmac = ctx->is_hmac; + + state->digest_buff_dma_addr = + dma_map_single(dev, state->digest_buff, + ctx->inter_digestsize, DMA_BIDIRECTIONAL); + if (dma_mapping_error(dev, state->digest_buff_dma_addr)) { + dev_err(dev, "Mapping digest len %d B at va=%pK for DMA failed\n", + ctx->inter_digestsize, state->digest_buff); + return -EINVAL; } + dev_dbg(dev, "Mapped digest %d B at va=%pK to dma=%pad\n", + ctx->inter_digestsize, state->digest_buff, + &state->digest_buff_dma_addr); if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) { - state->digest_bytes_len_dma_addr = dma_map_single(dev, (void *)state->digest_bytes_len, HASH_LEN_SIZE, DMA_BIDIRECTIONAL); + state->digest_bytes_len_dma_addr = + dma_map_single(dev, state->digest_bytes_len, + HASH_LEN_SIZE, DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, state->digest_bytes_len_dma_addr)) { dev_err(dev, "Mapping digest len %u B at va=%pK for DMA failed\n", HASH_LEN_SIZE, state->digest_bytes_len); - goto fail4; + goto unmap_digest_buf; } dev_dbg(dev, "Mapped digest len %u B at va=%pK to dma=%pad\n", HASH_LEN_SIZE, state->digest_bytes_len, &state->digest_bytes_len_dma_addr); - } else { - state->digest_bytes_len_dma_addr = 0; } if (is_hmac && ctx->hash_mode != DRV_HASH_NULL) { - state->opad_digest_dma_addr = dma_map_single(dev, (void *)state->opad_digest_buff, ctx->inter_digestsize, DMA_BIDIRECTIONAL); + state->opad_digest_dma_addr = + dma_map_single(dev, state->opad_digest_buff, + ctx->inter_digestsize, + DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, state->opad_digest_dma_addr)) { dev_err(dev, "Mapping opad digest %d B at va=%pK for DMA failed\n", ctx->inter_digestsize, state->opad_digest_buff); - goto fail5; + goto unmap_digest_len; } dev_dbg(dev, "Mapped opad digest %d B at va=%pK to dma=%pad\n", ctx->inter_digestsize, state->opad_digest_buff, &state->opad_digest_dma_addr); - } else { - state->opad_digest_dma_addr = 0; } - state->buff0_cnt = 0; - state->buff1_cnt = 0; - state->buff_index = 0; - state->mlli_params.curr_pool = NULL; return 0; -fail5: - if (state->digest_bytes_len_dma_addr != 0) { - dma_unmap_single(dev, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, DMA_BIDIRECTIONAL); +unmap_digest_len: + if (state->digest_bytes_len_dma_addr) { + dma_unmap_single(dev, state->digest_bytes_len_dma_addr, + HASH_LEN_SIZE, DMA_BIDIRECTIONAL); state->digest_bytes_len_dma_addr = 0; } -fail4: - if (state->digest_buff_dma_addr != 0) { - dma_unmap_single(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); +unmap_digest_buf: + if (state->digest_buff_dma_addr) { + dma_unmap_single(dev, state->digest_buff_dma_addr, + ctx->inter_digestsize, DMA_BIDIRECTIONAL); state->digest_buff_dma_addr = 0; } -fail3: - kfree(state->opad_digest_buff); -fail2: - kfree(state->digest_bytes_len); -fail1: - kfree(state->digest_buff); -fail_digest_result_buff: - kfree(state->digest_result_buff); - state->digest_result_buff = NULL; -fail_buff1: - kfree(state->buff1); - state->buff1 = NULL; -fail_buff0: - kfree(state->buff0); - state->buff0 = NULL; -fail0: - return rc; + + return -EINVAL; } -static void ssi_hash_unmap_request(struct device *dev, - struct ahash_req_ctx *state, - struct ssi_hash_ctx *ctx) +static void cc_unmap_req(struct device *dev, struct ahash_req_ctx *state, + struct cc_hash_ctx *ctx) { - if (state->digest_buff_dma_addr != 0) { + if (state->digest_buff_dma_addr) { dma_unmap_single(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); dev_dbg(dev, "Unmapped digest-buffer: digest_buff_dma_addr=%pad\n", &state->digest_buff_dma_addr); state->digest_buff_dma_addr = 0; } - if (state->digest_bytes_len_dma_addr != 0) { + if (state->digest_bytes_len_dma_addr) { dma_unmap_single(dev, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, DMA_BIDIRECTIONAL); dev_dbg(dev, "Unmapped digest-bytes-len buffer: digest_bytes_len_dma_addr=%pad\n", &state->digest_bytes_len_dma_addr); state->digest_bytes_len_dma_addr = 0; } - if (state->opad_digest_dma_addr != 0) { + if (state->opad_digest_dma_addr) { dma_unmap_single(dev, state->opad_digest_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL); dev_dbg(dev, "Unmapped opad-digest: opad_digest_dma_addr=%pad\n", &state->opad_digest_dma_addr); state->opad_digest_dma_addr = 0; } - - kfree(state->opad_digest_buff); - kfree(state->digest_bytes_len); - kfree(state->digest_buff); - kfree(state->digest_result_buff); - kfree(state->buff1); - kfree(state->buff0); } -static void ssi_hash_unmap_result(struct device *dev, - struct ahash_req_ctx *state, - unsigned int digestsize, u8 *result) +static void cc_unmap_result(struct device *dev, struct ahash_req_ctx *state, + unsigned int digestsize, u8 *result) { - if (state->digest_result_dma_addr != 0) { - dma_unmap_single(dev, - state->digest_result_dma_addr, - digestsize, - DMA_BIDIRECTIONAL); + if (state->digest_result_dma_addr) { + dma_unmap_single(dev, state->digest_result_dma_addr, digestsize, + DMA_BIDIRECTIONAL); dev_dbg(dev, "unmpa digest result buffer va (%pK) pa (%pad) len %u\n", state->digest_result_buff, &state->digest_result_dma_addr, digestsize); - memcpy(result, - state->digest_result_buff, - digestsize); + memcpy(result, state->digest_result_buff, digestsize); } state->digest_result_dma_addr = 0; } -static void ssi_hash_update_complete(struct device *dev, void *ssi_req, void __iomem *cc_base) +static void cc_update_complete(struct device *dev, void *cc_req, int err) { - struct ahash_request *req = (struct ahash_request *)ssi_req; + struct ahash_request *req = (struct ahash_request *)cc_req; struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); dev_dbg(dev, "req=%pK\n", req); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false); - req->base.complete(&req->base, 0); + cc_unmap_hash_request(dev, state, req->src, false); + cc_unmap_req(dev, state, ctx); + req->base.complete(&req->base, err); } -static void ssi_hash_digest_complete(struct device *dev, void *ssi_req, void __iomem *cc_base) +static void cc_digest_complete(struct device *dev, void *cc_req, int err) { - struct ahash_request *req = (struct ahash_request *)ssi_req; + struct ahash_request *req = (struct ahash_request *)cc_req; struct ahash_req_ctx *state = ahash_request_ctx(req); struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); u32 digestsize = crypto_ahash_digestsize(tfm); dev_dbg(dev, "req=%pK\n", req); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false); - ssi_hash_unmap_result(dev, state, digestsize, req->result); - ssi_hash_unmap_request(dev, state, ctx); - req->base.complete(&req->base, 0); + cc_unmap_hash_request(dev, state, req->src, false); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); + req->base.complete(&req->base, err); } -static void ssi_hash_complete(struct device *dev, void *ssi_req, void __iomem *cc_base) +static void cc_hash_complete(struct device *dev, void *cc_req, int err) { - struct ahash_request *req = (struct ahash_request *)ssi_req; + struct ahash_request *req = (struct ahash_request *)cc_req; struct ahash_req_ctx *state = ahash_request_ctx(req); struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); u32 digestsize = crypto_ahash_digestsize(tfm); dev_dbg(dev, "req=%pK\n", req); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false); - ssi_hash_unmap_result(dev, state, digestsize, req->result); - ssi_hash_unmap_request(dev, state, ctx); - req->base.complete(&req->base, 0); + cc_unmap_hash_request(dev, state, req->src, false); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); + req->base.complete(&req->base, err); +} + +static int cc_fin_result(struct cc_hw_desc *desc, struct ahash_request *req, + int idx) +{ + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); + u32 digestsize = crypto_ahash_digestsize(tfm); + + /* Get final MAC result */ + hw_desc_init(&desc[idx]); + set_cipher_mode(&desc[idx], ctx->hw_mode); + /* TODO */ + set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize, + NS_BIT, 1); + set_queue_last_ind(&desc[idx]); + set_flow_mode(&desc[idx], S_HASH_to_DOUT); + set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); + set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED); + cc_set_endianity(ctx->hash_mode, &desc[idx]); + idx++; + + return idx; +} + +static int cc_fin_hmac(struct cc_hw_desc *desc, struct ahash_request *req, + int idx) +{ + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); + u32 digestsize = crypto_ahash_digestsize(tfm); + + /* store the hash digest result in the context */ + hw_desc_init(&desc[idx]); + set_cipher_mode(&desc[idx], ctx->hw_mode); + set_dout_dlli(&desc[idx], state->digest_buff_dma_addr, digestsize, + NS_BIT, 0); + set_flow_mode(&desc[idx], S_HASH_to_DOUT); + cc_set_endianity(ctx->hash_mode, &desc[idx]); + set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); + idx++; + + /* Loading hash opad xor key state */ + hw_desc_init(&desc[idx]); + set_cipher_mode(&desc[idx], ctx->hw_mode); + set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, + ctx->inter_digestsize, NS_BIT); + set_flow_mode(&desc[idx], S_DIN_to_HASH); + set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); + idx++; + + /* Load the hash current length */ + hw_desc_init(&desc[idx]); + set_cipher_mode(&desc[idx], ctx->hw_mode); + set_din_sram(&desc[idx], + cc_digest_len_addr(ctx->drvdata, ctx->hash_mode), + HASH_LEN_SIZE); + set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); + set_flow_mode(&desc[idx], S_DIN_to_HASH); + set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); + idx++; + + /* Memory Barrier: wait for IPAD/OPAD axi write to complete */ + hw_desc_init(&desc[idx]); + set_din_no_dma(&desc[idx], 0, 0xfffff0); + set_dout_no_dma(&desc[idx], 0, 0, 1); + idx++; + + /* Perform HASH update */ + hw_desc_init(&desc[idx]); + set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, + digestsize, NS_BIT); + set_flow_mode(&desc[idx], DIN_HASH); + idx++; + + return idx; } -static int ssi_hash_digest(struct ahash_req_ctx *state, - struct ssi_hash_ctx *ctx, - unsigned int digestsize, - struct scatterlist *src, - unsigned int nbytes, u8 *result, - void *async_req) +static int cc_hash_digest(struct ahash_request *req) { + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); + u32 digestsize = crypto_ahash_digestsize(tfm); + struct scatterlist *src = req->src; + unsigned int nbytes = req->nbytes; + u8 *result = req->result; struct device *dev = drvdata_to_dev(ctx->drvdata); bool is_hmac = ctx->is_hmac; - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; - ssi_sram_addr_t larval_digest_addr = ssi_ahash_get_larval_digest_sram_addr( - ctx->drvdata, ctx->hash_mode); + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; + cc_sram_addr_t larval_digest_addr = + cc_larval_digest_addr(ctx->drvdata, ctx->hash_mode); int idx = 0; int rc = 0; + gfp_t flags = cc_gfp_flags(&req->base); dev_dbg(dev, "===== %s-digest (%d) ====\n", is_hmac ? "hmac" : "hash", nbytes); - if (unlikely(ssi_hash_map_request(dev, state, ctx) != 0)) { + cc_init_req(dev, state, ctx); + + if (cc_map_req(dev, state, ctx)) { dev_err(dev, "map_ahash_source() failed\n"); return -ENOMEM; } - if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) { + if (cc_map_result(dev, state, digestsize)) { dev_err(dev, "map_ahash_digest() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1) != 0)) { + if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1, + flags)) { dev_err(dev, "map_ahash_request_final() failed\n"); + cc_unmap_result(dev, state, digestsize, result); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (async_req) { - /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_digest_complete; - ssi_req.user_arg = (void *)async_req; - } + /* Setup DX request structure */ + cc_req.user_cb = cc_digest_complete; + cc_req.user_arg = req; - /* If HMAC then load hash IPAD xor key, if HASH then load initial digest */ + /* If HMAC then load hash IPAD xor key, if HASH then load initial + * digest + */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], ctx->hw_mode); if (is_hmac) { @@ -464,7 +468,7 @@ static int ssi_hash_digest(struct ahash_req_ctx *state, NS_BIT); } else { set_din_const(&desc[idx], 0, HASH_LEN_SIZE); - if (likely(nbytes != 0)) + if (nbytes) set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); else set_cipher_do(&desc[idx], DO_PAD); @@ -473,7 +477,7 @@ static int ssi_hash_digest(struct ahash_req_ctx *state, set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); idx++; - ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx); + cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx); if (is_hmac) { /* HW last hash block padding (aka. "DO_PAD") */ @@ -486,98 +490,62 @@ static int ssi_hash_digest(struct ahash_req_ctx *state, set_cipher_do(&desc[idx], DO_PAD); idx++; - /* store the hash digest result in the context */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_dout_dlli(&desc[idx], state->digest_buff_dma_addr, - digestsize, NS_BIT, 0); - set_flow_mode(&desc[idx], S_HASH_to_DOUT); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); - set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); - idx++; - - /* Loading hash opad xor key state */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, - ctx->inter_digestsize, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); - idx++; - - /* Load the hash current length */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_sram(&desc[idx], - ssi_ahash_get_initial_digest_len_sram_addr( -ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE); - set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); - idx++; + idx = cc_fin_hmac(desc, req, idx); + } - /* Memory Barrier: wait for IPAD/OPAD axi write to complete */ - hw_desc_init(&desc[idx]); - set_din_no_dma(&desc[idx], 0, 0xfffff0); - set_dout_no_dma(&desc[idx], 0, 0, 1); - idx++; + idx = cc_fin_result(desc, req, idx); - /* Perform HASH update */ - hw_desc_init(&desc[idx]); - set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, - digestsize, NS_BIT); - set_flow_mode(&desc[idx], DIN_HASH); - idx++; + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { + dev_err(dev, "send_request() failed (rc=%d)\n", rc); + cc_unmap_hash_request(dev, state, src, true); + cc_unmap_result(dev, state, digestsize, result); + cc_unmap_req(dev, state, ctx); } + return rc; +} - /* Get final MAC result */ +static int cc_restore_hash(struct cc_hw_desc *desc, struct cc_hash_ctx *ctx, + struct ahash_req_ctx *state, int idx) +{ + /* Restore hash digest */ + hw_desc_init(&desc[idx]); + set_cipher_mode(&desc[idx], ctx->hw_mode); + set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, + ctx->inter_digestsize, NS_BIT); + set_flow_mode(&desc[idx], S_DIN_to_HASH); + set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); + idx++; + + /* Restore hash current length */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], ctx->hw_mode); - /* TODO */ - set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize, - NS_BIT, (async_req ? 1 : 0)); - if (async_req) - set_queue_last_ind(&desc[idx]); - set_flow_mode(&desc[idx], S_HASH_to_DOUT); - set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); + set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, + HASH_LEN_SIZE, NS_BIT); + set_flow_mode(&desc[idx], S_DIN_to_HASH); + set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); idx++; - if (async_req) { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - ssi_hash_unmap_result(dev, state, digestsize, result); - ssi_hash_unmap_request(dev, state, ctx); - } - } else { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); - if (rc != 0) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - } else { - ssi_buffer_mgr_unmap_hash_request(dev, state, src, false); - } - ssi_hash_unmap_result(dev, state, digestsize, result); - ssi_hash_unmap_request(dev, state, ctx); - } - return rc; + cc_set_desc(state, ctx, DIN_HASH, desc, false, &idx); + + return idx; } -static int ssi_hash_update(struct ahash_req_ctx *state, - struct ssi_hash_ctx *ctx, - unsigned int block_size, - struct scatterlist *src, - unsigned int nbytes, - void *async_req) +static int cc_hash_update(struct ahash_request *req) { + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); + unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base); + struct scatterlist *src = req->src; + unsigned int nbytes = req->nbytes; struct device *dev = drvdata_to_dev(ctx->drvdata); - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; u32 idx = 0; int rc; + gfp_t flags = cc_gfp_flags(&req->base); dev_dbg(dev, "===== %s-update (%d) ====\n", ctx->is_hmac ? "hmac" : "hash", nbytes); @@ -587,8 +555,9 @@ static int ssi_hash_update(struct ahash_req_ctx *state, return 0; } - rc = ssi_buffer_mgr_map_hash_request_update(ctx->drvdata, state, src, nbytes, block_size); - if (unlikely(rc)) { + rc = cc_map_hash_request_update(ctx->drvdata, state, src, nbytes, + block_size, flags); + if (rc) { if (rc == 1) { dev_dbg(dev, " data size not require HW update %x\n", nbytes); @@ -599,30 +568,17 @@ static int ssi_hash_update(struct ahash_req_ctx *state, return -ENOMEM; } - if (async_req) { - /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_update_complete; - ssi_req.user_arg = async_req; + if (cc_map_req(dev, state, ctx)) { + dev_err(dev, "map_ahash_source() failed\n"); + cc_unmap_hash_request(dev, state, src, true); + return -EINVAL; } - /* Restore hash digest */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, - ctx->inter_digestsize, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); - idx++; - /* Restore hash current length */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); - idx++; + /* Setup DX request structure */ + cc_req.user_cb = cc_update_complete; + cc_req.user_arg = req; - ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx); + idx = cc_restore_hash(desc, ctx, state, idx); /* store the hash digest result in context */ hw_desc_init(&desc[idx]); @@ -637,220 +593,124 @@ static int ssi_hash_update(struct ahash_req_ctx *state, hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], ctx->hw_mode); set_dout_dlli(&desc[idx], state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, NS_BIT, (async_req ? 1 : 0)); - if (async_req) - set_queue_last_ind(&desc[idx]); + HASH_LEN_SIZE, NS_BIT, 1); + set_queue_last_ind(&desc[idx]); set_flow_mode(&desc[idx], S_HASH_to_DOUT); set_setup_mode(&desc[idx], SETUP_WRITE_STATE1); idx++; - if (async_req) { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - } - } else { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); - if (rc != 0) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - } else { - ssi_buffer_mgr_unmap_hash_request(dev, state, src, false); - } + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { + dev_err(dev, "send_request() failed (rc=%d)\n", rc); + cc_unmap_hash_request(dev, state, src, true); + cc_unmap_req(dev, state, ctx); } return rc; } -static int ssi_hash_finup(struct ahash_req_ctx *state, - struct ssi_hash_ctx *ctx, - unsigned int digestsize, - struct scatterlist *src, - unsigned int nbytes, - u8 *result, - void *async_req) +static int cc_hash_finup(struct ahash_request *req) { + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); + u32 digestsize = crypto_ahash_digestsize(tfm); + struct scatterlist *src = req->src; + unsigned int nbytes = req->nbytes; + u8 *result = req->result; struct device *dev = drvdata_to_dev(ctx->drvdata); bool is_hmac = ctx->is_hmac; - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; int idx = 0; int rc; + gfp_t flags = cc_gfp_flags(&req->base); dev_dbg(dev, "===== %s-finup (%d) ====\n", is_hmac ? "hmac" : "hash", nbytes); - if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1) != 0)) { + if (cc_map_req(dev, state, ctx)) { + dev_err(dev, "map_ahash_source() failed\n"); + return -EINVAL; + } + + if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1, + flags)) { dev_err(dev, "map_ahash_request_final() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) { + if (cc_map_result(dev, state, digestsize)) { dev_err(dev, "map_ahash_digest() failed\n"); + cc_unmap_hash_request(dev, state, src, true); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (async_req) { - /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_complete; - ssi_req.user_arg = async_req; - } - - /* Restore hash digest */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, - ctx->inter_digestsize, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); - idx++; - - /* Restore hash current length */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); - set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); - idx++; - - ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx); - - if (is_hmac) { - /* Store the hash digest result in the context */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_dout_dlli(&desc[idx], state->digest_buff_dma_addr, - digestsize, NS_BIT, 0); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); - set_flow_mode(&desc[idx], S_HASH_to_DOUT); - set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); - idx++; - - /* Loading hash OPAD xor key state */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, - ctx->inter_digestsize, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); - idx++; - - /* Load the hash current length */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_sram(&desc[idx], - ssi_ahash_get_initial_digest_len_sram_addr( -ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE); - set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); - idx++; + /* Setup DX request structure */ + cc_req.user_cb = cc_hash_complete; + cc_req.user_arg = req; - /* Memory Barrier: wait for IPAD/OPAD axi write to complete */ - hw_desc_init(&desc[idx]); - set_din_no_dma(&desc[idx], 0, 0xfffff0); - set_dout_no_dma(&desc[idx], 0, 0, 1); - idx++; + idx = cc_restore_hash(desc, ctx, state, idx); - /* Perform HASH update on last digest */ - hw_desc_init(&desc[idx]); - set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, - digestsize, NS_BIT); - set_flow_mode(&desc[idx], DIN_HASH); - idx++; - } + if (is_hmac) + idx = cc_fin_hmac(desc, req, idx); - /* Get final MAC result */ - hw_desc_init(&desc[idx]); - /* TODO */ - set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize, - NS_BIT, (async_req ? 1 : 0)); - if (async_req) - set_queue_last_ind(&desc[idx]); - set_flow_mode(&desc[idx], S_HASH_to_DOUT); - set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED); - set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - idx++; + idx = cc_fin_result(desc, req, idx); - if (async_req) { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - ssi_hash_unmap_result(dev, state, digestsize, result); - } - } else { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); - if (rc != 0) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - ssi_hash_unmap_result(dev, state, digestsize, result); - } else { - ssi_buffer_mgr_unmap_hash_request(dev, state, src, false); - ssi_hash_unmap_result(dev, state, digestsize, result); - ssi_hash_unmap_request(dev, state, ctx); - } + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { + dev_err(dev, "send_request() failed (rc=%d)\n", rc); + cc_unmap_hash_request(dev, state, src, true); + cc_unmap_result(dev, state, digestsize, result); + cc_unmap_req(dev, state, ctx); } return rc; } -static int ssi_hash_final(struct ahash_req_ctx *state, - struct ssi_hash_ctx *ctx, - unsigned int digestsize, - struct scatterlist *src, - unsigned int nbytes, - u8 *result, - void *async_req) +static int cc_hash_final(struct ahash_request *req) { + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); + u32 digestsize = crypto_ahash_digestsize(tfm); + struct scatterlist *src = req->src; + unsigned int nbytes = req->nbytes; + u8 *result = req->result; struct device *dev = drvdata_to_dev(ctx->drvdata); bool is_hmac = ctx->is_hmac; - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; int idx = 0; int rc; + gfp_t flags = cc_gfp_flags(&req->base); dev_dbg(dev, "===== %s-final (%d) ====\n", is_hmac ? "hmac" : "hash", nbytes); - if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 0) != 0)) { + if (cc_map_req(dev, state, ctx)) { + dev_err(dev, "map_ahash_source() failed\n"); + return -EINVAL; + } + + if (cc_map_hash_request_final(ctx->drvdata, state, src, nbytes, 0, + flags)) { dev_err(dev, "map_ahash_request_final() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) { + if (cc_map_result(dev, state, digestsize)) { dev_err(dev, "map_ahash_digest() failed\n"); + cc_unmap_hash_request(dev, state, src, true); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (async_req) { - /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_complete; - ssi_req.user_arg = async_req; - } - - /* Restore hash digest */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, - ctx->inter_digestsize, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); - idx++; - - /* Restore hash current length */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED); - set_din_type(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); - idx++; + /* Setup DX request structure */ + cc_req.user_cb = cc_hash_complete; + cc_req.user_arg = req; - ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx); + idx = cc_restore_hash(desc, ctx, state, idx); /* "DO-PAD" must be enabled only when writing current length to HW */ hw_desc_init(&desc[idx]); @@ -862,121 +722,56 @@ static int ssi_hash_final(struct ahash_req_ctx *state, set_flow_mode(&desc[idx], S_HASH_to_DOUT); idx++; - if (is_hmac) { - /* Store the hash digest result in the context */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_dout_dlli(&desc[idx], state->digest_buff_dma_addr, - digestsize, NS_BIT, 0); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); - set_flow_mode(&desc[idx], S_HASH_to_DOUT); - set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); - idx++; - - /* Loading hash OPAD xor key state */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_type(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, - ctx->inter_digestsize, NS_BIT); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_STATE0); - idx++; - - /* Load the hash current length */ - hw_desc_init(&desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - set_din_sram(&desc[idx], - ssi_ahash_get_initial_digest_len_sram_addr( -ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE); - set_cipher_config1(&desc[idx], HASH_PADDING_ENABLED); - set_flow_mode(&desc[idx], S_DIN_to_HASH); - set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); - idx++; - - /* Memory Barrier: wait for IPAD/OPAD axi write to complete */ - hw_desc_init(&desc[idx]); - set_din_no_dma(&desc[idx], 0, 0xfffff0); - set_dout_no_dma(&desc[idx], 0, 0, 1); - idx++; - - /* Perform HASH update on last digest */ - hw_desc_init(&desc[idx]); - set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, - digestsize, NS_BIT); - set_flow_mode(&desc[idx], DIN_HASH); - idx++; - } + if (is_hmac) + idx = cc_fin_hmac(desc, req, idx); - /* Get final MAC result */ - hw_desc_init(&desc[idx]); - set_dout_dlli(&desc[idx], state->digest_result_dma_addr, digestsize, - NS_BIT, (async_req ? 1 : 0)); - if (async_req) - set_queue_last_ind(&desc[idx]); - set_flow_mode(&desc[idx], S_HASH_to_DOUT); - set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED); - set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); - set_cipher_mode(&desc[idx], ctx->hw_mode); - idx++; + idx = cc_fin_result(desc, req, idx); - if (async_req) { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - ssi_hash_unmap_result(dev, state, digestsize, result); - } - } else { - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); - if (rc != 0) { - dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, src, true); - ssi_hash_unmap_result(dev, state, digestsize, result); - } else { - ssi_buffer_mgr_unmap_hash_request(dev, state, src, false); - ssi_hash_unmap_result(dev, state, digestsize, result); - ssi_hash_unmap_request(dev, state, ctx); - } + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { + dev_err(dev, "send_request() failed (rc=%d)\n", rc); + cc_unmap_hash_request(dev, state, src, true); + cc_unmap_result(dev, state, digestsize, result); + cc_unmap_req(dev, state, ctx); } return rc; } -static int ssi_hash_init(struct ahash_req_ctx *state, struct ssi_hash_ctx *ctx) +static int cc_hash_init(struct ahash_request *req) { + struct ahash_req_ctx *state = ahash_request_ctx(req); + struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - state->xcbc_count = 0; + dev_dbg(dev, "===== init (%d) ====\n", req->nbytes); - ssi_hash_map_request(dev, state, ctx); + cc_init_req(dev, state, ctx); return 0; } -static int ssi_hash_setkey(void *hash, - const u8 *key, - unsigned int keylen, - bool synchronize) +static int cc_hash_setkey(struct crypto_ahash *ahash, const u8 *key, + unsigned int keylen) { unsigned int hmac_pad_const[2] = { HMAC_IPAD_CONST, HMAC_OPAD_CONST }; - struct ssi_crypto_req ssi_req = {}; - struct ssi_hash_ctx *ctx = NULL; + struct cc_crypto_req cc_req = {}; + struct cc_hash_ctx *ctx = NULL; int blocksize = 0; int digestsize = 0; int i, idx = 0, rc = 0; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; - ssi_sram_addr_t larval_addr; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; + cc_sram_addr_t larval_addr; struct device *dev; - ctx = crypto_ahash_ctx(((struct crypto_ahash *)hash)); + ctx = crypto_ahash_ctx(ahash); dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "start keylen: %d", keylen); - blocksize = crypto_tfm_alg_blocksize(&((struct crypto_ahash *)hash)->base); - digestsize = crypto_ahash_digestsize(((struct crypto_ahash *)hash)); + blocksize = crypto_tfm_alg_blocksize(&ahash->base); + digestsize = crypto_ahash_digestsize(ahash); - larval_addr = ssi_ahash_get_larval_digest_sram_addr( - ctx->drvdata, ctx->hash_mode); + larval_addr = cc_larval_digest_addr(ctx->drvdata, ctx->hash_mode); /* The keylen value distinguishes HASH in case keylen is ZERO bytes, * any NON-ZERO value utilizes HMAC flow @@ -985,12 +780,10 @@ static int ssi_hash_setkey(void *hash, ctx->key_params.key_dma_addr = 0; ctx->is_hmac = true; - if (keylen != 0) { - ctx->key_params.key_dma_addr = dma_map_single( - dev, (void *)key, - keylen, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, - ctx->key_params.key_dma_addr))) { + if (keylen) { + ctx->key_params.key_dma_addr = + dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE); + if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) { dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n", key, keylen); return -ENOMEM; @@ -1032,14 +825,15 @@ static int ssi_hash_setkey(void *hash, set_flow_mode(&desc[idx], S_HASH_to_DOUT); set_setup_mode(&desc[idx], SETUP_WRITE_STATE0); set_cipher_config1(&desc[idx], HASH_PADDING_DISABLED); - ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]); + cc_set_endianity(ctx->hash_mode, &desc[idx]); idx++; hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0, (blocksize - digestsize)); set_flow_mode(&desc[idx], BYPASS); - set_dout_dlli(&desc[idx], (ctx->opad_tmp_keys_dma_addr + - digestsize), + set_dout_dlli(&desc[idx], + (ctx->opad_tmp_keys_dma_addr + + digestsize), (blocksize - digestsize), NS_BIT, 0); idx++; } else { @@ -1052,7 +846,7 @@ static int ssi_hash_setkey(void *hash, keylen, NS_BIT, 0); idx++; - if ((blocksize - keylen) != 0) { + if ((blocksize - keylen)) { hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0, (blocksize - keylen)); @@ -1073,8 +867,8 @@ static int ssi_hash_setkey(void *hash, idx++; } - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); - if (unlikely(rc != 0)) { + rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx); + if (rc) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); goto out; } @@ -1114,7 +908,9 @@ static int ssi_hash_setkey(void *hash, set_flow_mode(&desc[idx], DIN_HASH); idx++; - /* Get the IPAD/OPAD xor key (Note, IPAD is the initial digest of the first HASH "update" state) */ + /* Get the IPAD/OPAD xor key (Note, IPAD is the initial digest + * of the first HASH "update" state) + */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], ctx->hw_mode); if (i > 0) /* Not first iteration */ @@ -1128,11 +924,11 @@ static int ssi_hash_setkey(void *hash, idx++; } - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); + rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx); out: if (rc) - crypto_ahash_set_flags((struct crypto_ahash *)hash, CRYPTO_TFM_RES_BAD_KEY_LEN); + crypto_ahash_set_flags(ahash, CRYPTO_TFM_RES_BAD_KEY_LEN); if (ctx->key_params.key_dma_addr) { dma_unmap_single(dev, ctx->key_params.key_dma_addr, @@ -1143,14 +939,14 @@ out: return rc; } -static int ssi_xcbc_setkey(struct crypto_ahash *ahash, - const u8 *key, unsigned int keylen) +static int cc_xcbc_setkey(struct crypto_ahash *ahash, + const u8 *key, unsigned int keylen) { - struct ssi_crypto_req ssi_req = {}; - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash); + struct cc_crypto_req cc_req = {}; + struct cc_hash_ctx *ctx = crypto_ahash_ctx(ahash); struct device *dev = drvdata_to_dev(ctx->drvdata); int idx = 0, rc = 0; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; dev_dbg(dev, "===== setkey (%d) ====\n", keylen); @@ -1165,10 +961,9 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash, ctx->key_params.keylen = keylen; - ctx->key_params.key_dma_addr = dma_map_single( - dev, (void *)key, - keylen, DMA_TO_DEVICE); - if (unlikely(dma_mapping_error(dev, ctx->key_params.key_dma_addr))) { + ctx->key_params.key_dma_addr = + dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE); + if (dma_mapping_error(dev, ctx->key_params.key_dma_addr)) { dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n", key, keylen); return -ENOMEM; @@ -1191,30 +986,30 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash, hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0x01010101, CC_AES_128_BIT_KEY_SIZE); set_flow_mode(&desc[idx], DIN_AES_DOUT); - set_dout_dlli(&desc[idx], (ctx->opad_tmp_keys_dma_addr + - XCBC_MAC_K1_OFFSET), - CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0); + set_dout_dlli(&desc[idx], + (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K1_OFFSET), + CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0); idx++; hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0x02020202, CC_AES_128_BIT_KEY_SIZE); set_flow_mode(&desc[idx], DIN_AES_DOUT); - set_dout_dlli(&desc[idx], (ctx->opad_tmp_keys_dma_addr + - XCBC_MAC_K2_OFFSET), - CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0); + set_dout_dlli(&desc[idx], + (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K2_OFFSET), + CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0); idx++; hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0x03030303, CC_AES_128_BIT_KEY_SIZE); set_flow_mode(&desc[idx], DIN_AES_DOUT); - set_dout_dlli(&desc[idx], (ctx->opad_tmp_keys_dma_addr + - XCBC_MAC_K3_OFFSET), - CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0); + set_dout_dlli(&desc[idx], + (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K3_OFFSET), + CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0); idx++; - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0); + rc = cc_send_sync_request(ctx->drvdata, &cc_req, desc, idx); - if (rc != 0) + if (rc) crypto_ahash_set_flags(ahash, CRYPTO_TFM_RES_BAD_KEY_LEN); dma_unmap_single(dev, ctx->key_params.key_dma_addr, @@ -1225,11 +1020,10 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash, return rc; } -#if SSI_CC_HAS_CMAC -static int ssi_cmac_setkey(struct crypto_ahash *ahash, - const u8 *key, unsigned int keylen) +static int cc_cmac_setkey(struct crypto_ahash *ahash, + const u8 *key, unsigned int keylen) { - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(ahash); struct device *dev = drvdata_to_dev(ctx->drvdata); dev_dbg(dev, "===== setkey (%d) ====\n", keylen); @@ -1253,8 +1047,10 @@ static int ssi_cmac_setkey(struct crypto_ahash *ahash, keylen, DMA_TO_DEVICE); memcpy(ctx->opad_tmp_keys_buff, key, keylen); - if (keylen == 24) - memset(ctx->opad_tmp_keys_buff + 24, 0, CC_AES_KEY_SIZE_MAX - 24); + if (keylen == 24) { + memset(ctx->opad_tmp_keys_buff + 24, 0, + CC_AES_KEY_SIZE_MAX - 24); + } dma_sync_single_for_device(dev, ctx->opad_tmp_keys_dma_addr, keylen, DMA_TO_DEVICE); @@ -1263,20 +1059,19 @@ static int ssi_cmac_setkey(struct crypto_ahash *ahash, return 0; } -#endif -static void ssi_hash_free_ctx(struct ssi_hash_ctx *ctx) +static void cc_free_ctx(struct cc_hash_ctx *ctx) { struct device *dev = drvdata_to_dev(ctx->drvdata); - if (ctx->digest_buff_dma_addr != 0) { + if (ctx->digest_buff_dma_addr) { dma_unmap_single(dev, ctx->digest_buff_dma_addr, sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL); dev_dbg(dev, "Unmapped digest-buffer: digest_buff_dma_addr=%pad\n", &ctx->digest_buff_dma_addr); ctx->digest_buff_dma_addr = 0; } - if (ctx->opad_tmp_keys_dma_addr != 0) { + if (ctx->opad_tmp_keys_dma_addr) { dma_unmap_single(dev, ctx->opad_tmp_keys_dma_addr, sizeof(ctx->opad_tmp_keys_buff), DMA_BIDIRECTIONAL); @@ -1288,13 +1083,15 @@ static void ssi_hash_free_ctx(struct ssi_hash_ctx *ctx) ctx->key_params.keylen = 0; } -static int ssi_hash_alloc_ctx(struct ssi_hash_ctx *ctx) +static int cc_alloc_ctx(struct cc_hash_ctx *ctx) { struct device *dev = drvdata_to_dev(ctx->drvdata); ctx->key_params.keylen = 0; - ctx->digest_buff_dma_addr = dma_map_single(dev, (void *)ctx->digest_buff, sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL); + ctx->digest_buff_dma_addr = + dma_map_single(dev, (void *)ctx->digest_buff, + sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, ctx->digest_buff_dma_addr)) { dev_err(dev, "Mapping digest len %zu B at va=%pK for DMA failed\n", sizeof(ctx->digest_buff), ctx->digest_buff); @@ -1304,7 +1101,10 @@ static int ssi_hash_alloc_ctx(struct ssi_hash_ctx *ctx) sizeof(ctx->digest_buff), ctx->digest_buff, &ctx->digest_buff_dma_addr); - ctx->opad_tmp_keys_dma_addr = dma_map_single(dev, (void *)ctx->opad_tmp_keys_buff, sizeof(ctx->opad_tmp_keys_buff), DMA_BIDIRECTIONAL); + ctx->opad_tmp_keys_dma_addr = + dma_map_single(dev, (void *)ctx->opad_tmp_keys_buff, + sizeof(ctx->opad_tmp_keys_buff), + DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, ctx->opad_tmp_keys_dma_addr)) { dev_err(dev, "Mapping opad digest %zu B at va=%pK for DMA failed\n", sizeof(ctx->opad_tmp_keys_buff), @@ -1319,51 +1119,52 @@ static int ssi_hash_alloc_ctx(struct ssi_hash_ctx *ctx) return 0; fail: - ssi_hash_free_ctx(ctx); + cc_free_ctx(ctx); return -ENOMEM; } -static int ssi_ahash_cra_init(struct crypto_tfm *tfm) +static int cc_cra_init(struct crypto_tfm *tfm) { - struct ssi_hash_ctx *ctx = crypto_tfm_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_tfm_ctx(tfm); struct hash_alg_common *hash_alg_common = container_of(tfm->__crt_alg, struct hash_alg_common, base); struct ahash_alg *ahash_alg = container_of(hash_alg_common, struct ahash_alg, halg); - struct ssi_hash_alg *ssi_alg = - container_of(ahash_alg, struct ssi_hash_alg, ahash_alg); + struct cc_hash_alg *cc_alg = + container_of(ahash_alg, struct cc_hash_alg, ahash_alg); crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), sizeof(struct ahash_req_ctx)); - ctx->hash_mode = ssi_alg->hash_mode; - ctx->hw_mode = ssi_alg->hw_mode; - ctx->inter_digestsize = ssi_alg->inter_digestsize; - ctx->drvdata = ssi_alg->drvdata; + ctx->hash_mode = cc_alg->hash_mode; + ctx->hw_mode = cc_alg->hw_mode; + ctx->inter_digestsize = cc_alg->inter_digestsize; + ctx->drvdata = cc_alg->drvdata; - return ssi_hash_alloc_ctx(ctx); + return cc_alloc_ctx(ctx); } -static void ssi_hash_cra_exit(struct crypto_tfm *tfm) +static void cc_cra_exit(struct crypto_tfm *tfm) { - struct ssi_hash_ctx *ctx = crypto_tfm_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_tfm_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - dev_dbg(dev, "ssi_hash_cra_exit"); - ssi_hash_free_ctx(ctx); + dev_dbg(dev, "cc_cra_exit"); + cc_free_ctx(ctx); } -static int ssi_mac_update(struct ahash_request *req) +static int cc_mac_update(struct ahash_request *req) { struct ahash_req_ctx *state = ahash_request_ctx(req); struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base); - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; int rc; u32 idx = 0; + gfp_t flags = cc_gfp_flags(&req->base); if (req->nbytes == 0) { /* no real updates required */ @@ -1372,8 +1173,9 @@ static int ssi_mac_update(struct ahash_request *req) state->xcbc_count++; - rc = ssi_buffer_mgr_map_hash_request_update(ctx->drvdata, state, req->src, req->nbytes, block_size); - if (unlikely(rc)) { + rc = cc_map_hash_request_update(ctx->drvdata, state, req->src, + req->nbytes, block_size, flags); + if (rc) { if (rc == 1) { dev_dbg(dev, " data size not require HW update %x\n", req->nbytes); @@ -1384,12 +1186,17 @@ static int ssi_mac_update(struct ahash_request *req) return -ENOMEM; } + if (cc_map_req(dev, state, ctx)) { + dev_err(dev, "map_ahash_source() failed\n"); + return -EINVAL; + } + if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) - ssi_hash_create_xcbc_setup(req, desc, &idx); + cc_setup_xcbc(req, desc, &idx); else - ssi_hash_create_cmac_setup(req, desc, &idx); + cc_setup_cmac(req, desc, &idx); - ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, true, &idx); + cc_set_desc(state, ctx, DIN_AES_DOUT, desc, true, &idx); /* store the hash digest result in context */ hw_desc_init(&desc[idx]); @@ -1402,32 +1209,32 @@ static int ssi_mac_update(struct ahash_request *req) idx++; /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_update_complete; - ssi_req.user_arg = (void *)req; + cc_req.user_cb = (void *)cc_update_complete; + cc_req.user_arg = (void *)req; - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true); + cc_unmap_hash_request(dev, state, req->src, true); + cc_unmap_req(dev, state, ctx); } return rc; } -static int ssi_mac_final(struct ahash_request *req) +static int cc_mac_final(struct ahash_request *req) { struct ahash_req_ctx *state = ahash_request_ctx(req); struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; int idx = 0; int rc = 0; u32 key_size, key_len; u32 digestsize = crypto_ahash_digestsize(tfm); - - u32 rem_cnt = state->buff_index ? state->buff1_cnt : - state->buff0_cnt; + gfp_t flags = cc_gfp_flags(&req->base); + u32 rem_cnt = *cc_hash_buf_cnt(state); if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) { key_size = CC_AES_128_BIT_KEY_SIZE; @@ -1440,34 +1247,45 @@ static int ssi_mac_final(struct ahash_request *req) dev_dbg(dev, "===== final xcbc reminder (%d) ====\n", rem_cnt); - if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 0) != 0)) { + if (cc_map_req(dev, state, ctx)) { + dev_err(dev, "map_ahash_source() failed\n"); + return -EINVAL; + } + + if (cc_map_hash_request_final(ctx->drvdata, state, req->src, + req->nbytes, 0, flags)) { dev_err(dev, "map_ahash_request_final() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) { + if (cc_map_result(dev, state, digestsize)) { dev_err(dev, "map_ahash_digest() failed\n"); + cc_unmap_hash_request(dev, state, req->src, true); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_complete; - ssi_req.user_arg = (void *)req; + cc_req.user_cb = (void *)cc_hash_complete; + cc_req.user_arg = (void *)req; - if (state->xcbc_count && (rem_cnt == 0)) { + if (state->xcbc_count && rem_cnt == 0) { /* Load key for ECB decryption */ hw_desc_init(&desc[idx]); set_cipher_mode(&desc[idx], DRV_CIPHER_ECB); set_cipher_config0(&desc[idx], DRV_CRYPTO_DIRECTION_DECRYPT); set_din_type(&desc[idx], DMA_DLLI, - (ctx->opad_tmp_keys_dma_addr + - XCBC_MAC_K1_OFFSET), key_size, NS_BIT); + (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K1_OFFSET), + key_size, NS_BIT); set_key_size_aes(&desc[idx], key_len); set_flow_mode(&desc[idx], S_DIN_to_AES); set_setup_mode(&desc[idx], SETUP_LOAD_KEY0); idx++; - /* Initiate decryption of block state to previous block_state-XOR-M[n] */ + /* Initiate decryption of block state to previous + * block_state-XOR-M[n] + */ hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, CC_AES_BLOCK_SIZE, NS_BIT); @@ -1484,9 +1302,9 @@ static int ssi_mac_final(struct ahash_request *req) } if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) - ssi_hash_create_xcbc_setup(req, desc, &idx); + cc_setup_xcbc(req, desc, &idx); else - ssi_hash_create_cmac_setup(req, desc, &idx); + cc_setup_cmac(req, desc, &idx); if (state->xcbc_count == 0) { hw_desc_init(&desc[idx]); @@ -1496,7 +1314,7 @@ static int ssi_mac_final(struct ahash_request *req) set_flow_mode(&desc[idx], S_DIN_to_AES); idx++; } else if (rem_cnt > 0) { - ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx); + cc_set_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx); } else { hw_desc_init(&desc[idx]); set_din_const(&desc[idx], 0x00, CC_AES_BLOCK_SIZE); @@ -1515,53 +1333,64 @@ static int ssi_mac_final(struct ahash_request *req) set_cipher_mode(&desc[idx], ctx->hw_mode); idx++; - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true); - ssi_hash_unmap_result(dev, state, digestsize, req->result); + cc_unmap_hash_request(dev, state, req->src, true); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); } return rc; } -static int ssi_mac_finup(struct ahash_request *req) +static int cc_mac_finup(struct ahash_request *req) { struct ahash_req_ctx *state = ahash_request_ctx(req); struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; int idx = 0; int rc = 0; u32 key_len = 0; u32 digestsize = crypto_ahash_digestsize(tfm); + gfp_t flags = cc_gfp_flags(&req->base); dev_dbg(dev, "===== finup xcbc(%d) ====\n", req->nbytes); if (state->xcbc_count > 0 && req->nbytes == 0) { dev_dbg(dev, "No data to update. Call to fdx_mac_final\n"); - return ssi_mac_final(req); + return cc_mac_final(req); + } + + if (cc_map_req(dev, state, ctx)) { + dev_err(dev, "map_ahash_source() failed\n"); + return -EINVAL; } - if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 1) != 0)) { + if (cc_map_hash_request_final(ctx->drvdata, state, req->src, + req->nbytes, 1, flags)) { dev_err(dev, "map_ahash_request_final() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) { + if (cc_map_result(dev, state, digestsize)) { dev_err(dev, "map_ahash_digest() failed\n"); + cc_unmap_hash_request(dev, state, req->src, true); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_complete; - ssi_req.user_arg = (void *)req; + cc_req.user_cb = (void *)cc_hash_complete; + cc_req.user_arg = (void *)req; if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) { key_len = CC_AES_128_BIT_KEY_SIZE; - ssi_hash_create_xcbc_setup(req, desc, &idx); + cc_setup_xcbc(req, desc, &idx); } else { key_len = ctx->key_params.keylen; - ssi_hash_create_cmac_setup(req, desc, &idx); + cc_setup_cmac(req, desc, &idx); } if (req->nbytes == 0) { @@ -1572,7 +1401,7 @@ static int ssi_mac_finup(struct ahash_request *req) set_flow_mode(&desc[idx], S_DIN_to_AES); idx++; } else { - ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx); + cc_set_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx); } /* Get final MAC result */ @@ -1586,54 +1415,61 @@ static int ssi_mac_finup(struct ahash_request *req) set_cipher_mode(&desc[idx], ctx->hw_mode); idx++; - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true); - ssi_hash_unmap_result(dev, state, digestsize, req->result); + cc_unmap_hash_request(dev, state, req->src, true); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); } return rc; } -static int ssi_mac_digest(struct ahash_request *req) +static int cc_mac_digest(struct ahash_request *req) { struct ahash_req_ctx *state = ahash_request_ctx(req); struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); struct device *dev = drvdata_to_dev(ctx->drvdata); u32 digestsize = crypto_ahash_digestsize(tfm); - struct ssi_crypto_req ssi_req = {}; - struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN]; + struct cc_crypto_req cc_req = {}; + struct cc_hw_desc desc[CC_MAX_HASH_SEQ_LEN]; u32 key_len; int idx = 0; int rc; + gfp_t flags = cc_gfp_flags(&req->base); dev_dbg(dev, "===== -digest mac (%d) ====\n", req->nbytes); - if (unlikely(ssi_hash_map_request(dev, state, ctx) != 0)) { + cc_init_req(dev, state, ctx); + + if (cc_map_req(dev, state, ctx)) { dev_err(dev, "map_ahash_source() failed\n"); return -ENOMEM; } - if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) { + if (cc_map_result(dev, state, digestsize)) { dev_err(dev, "map_ahash_digest() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } - if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 1) != 0)) { + if (cc_map_hash_request_final(ctx->drvdata, state, req->src, + req->nbytes, 1, flags)) { dev_err(dev, "map_ahash_request_final() failed\n"); + cc_unmap_req(dev, state, ctx); return -ENOMEM; } /* Setup DX request structure */ - ssi_req.user_cb = (void *)ssi_hash_digest_complete; - ssi_req.user_arg = (void *)req; + cc_req.user_cb = (void *)cc_digest_complete; + cc_req.user_arg = (void *)req; if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) { key_len = CC_AES_128_BIT_KEY_SIZE; - ssi_hash_create_xcbc_setup(req, desc, &idx); + cc_setup_xcbc(req, desc, &idx); } else { key_len = ctx->key_params.keylen; - ssi_hash_create_cmac_setup(req, desc, &idx); + cc_setup_cmac(req, desc, &idx); } if (req->nbytes == 0) { @@ -1644,7 +1480,7 @@ static int ssi_mac_digest(struct ahash_request *req) set_flow_mode(&desc[idx], S_DIN_to_AES); idx++; } else { - ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx); + cc_set_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx); } /* Get final MAC result */ @@ -1658,96 +1494,32 @@ static int ssi_mac_digest(struct ahash_request *req) set_cipher_mode(&desc[idx], ctx->hw_mode); idx++; - rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1); - if (unlikely(rc != -EINPROGRESS)) { + rc = cc_send_request(ctx->drvdata, &cc_req, desc, idx, &req->base); + if (rc != -EINPROGRESS && rc != -EBUSY) { dev_err(dev, "send_request() failed (rc=%d)\n", rc); - ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true); - ssi_hash_unmap_result(dev, state, digestsize, req->result); - ssi_hash_unmap_request(dev, state, ctx); + cc_unmap_hash_request(dev, state, req->src, true); + cc_unmap_result(dev, state, digestsize, req->result); + cc_unmap_req(dev, state, ctx); } return rc; } -//ahash wrap functions -static int ssi_ahash_digest(struct ahash_request *req) -{ - struct ahash_req_ctx *state = ahash_request_ctx(req); - struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); - u32 digestsize = crypto_ahash_digestsize(tfm); - - return ssi_hash_digest(state, ctx, digestsize, req->src, req->nbytes, req->result, (void *)req); -} - -static int ssi_ahash_update(struct ahash_request *req) -{ - struct ahash_req_ctx *state = ahash_request_ctx(req); - struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); - unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base); - - return ssi_hash_update(state, ctx, block_size, req->src, req->nbytes, (void *)req); -} - -static int ssi_ahash_finup(struct ahash_request *req) -{ - struct ahash_req_ctx *state = ahash_request_ctx(req); - struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); - u32 digestsize = crypto_ahash_digestsize(tfm); - - return ssi_hash_finup(state, ctx, digestsize, req->src, req->nbytes, req->result, (void *)req); -} - -static int ssi_ahash_final(struct ahash_request *req) -{ - struct ahash_req_ctx *state = ahash_request_ctx(req); - struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); - u32 digestsize = crypto_ahash_digestsize(tfm); - - return ssi_hash_final(state, ctx, digestsize, req->src, req->nbytes, req->result, (void *)req); -} - -static int ssi_ahash_init(struct ahash_request *req) -{ - struct ahash_req_ctx *state = ahash_request_ctx(req); - struct crypto_ahash *tfm = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); - struct device *dev = drvdata_to_dev(ctx->drvdata); - - dev_dbg(dev, "===== init (%d) ====\n", req->nbytes); - - return ssi_hash_init(state, ctx); -} - -static int ssi_ahash_export(struct ahash_request *req, void *out) +static int cc_hash_export(struct ahash_request *req, void *out) { struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash); - struct device *dev = drvdata_to_dev(ctx->drvdata); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(ahash); struct ahash_req_ctx *state = ahash_request_ctx(req); - u8 *curr_buff = state->buff_index ? state->buff1 : state->buff0; - u32 curr_buff_cnt = state->buff_index ? state->buff1_cnt : - state->buff0_cnt; + u8 *curr_buff = cc_hash_buf(state); + u32 curr_buff_cnt = *cc_hash_buf_cnt(state); const u32 tmp = CC_EXPORT_MAGIC; memcpy(out, &tmp, sizeof(u32)); out += sizeof(u32); - dma_sync_single_for_cpu(dev, state->digest_buff_dma_addr, - ctx->inter_digestsize, DMA_BIDIRECTIONAL); memcpy(out, state->digest_buff, ctx->inter_digestsize); out += ctx->inter_digestsize; - if (state->digest_bytes_len_dma_addr) { - dma_sync_single_for_cpu(dev, state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, DMA_BIDIRECTIONAL); - memcpy(out, state->digest_bytes_len, HASH_LEN_SIZE); - } else { - /* Poison the unused exported digest len field. */ - memset(out, 0x5F, HASH_LEN_SIZE); - } + memcpy(out, state->digest_bytes_len, HASH_LEN_SIZE); out += HASH_LEN_SIZE; memcpy(out, &curr_buff_cnt, sizeof(u32)); @@ -1755,80 +1527,43 @@ static int ssi_ahash_export(struct ahash_request *req, void *out) memcpy(out, curr_buff, curr_buff_cnt); - /* No sync for device ineeded since we did not change the data, - * we only copy it - */ - return 0; } -static int ssi_ahash_import(struct ahash_request *req, const void *in) +static int cc_hash_import(struct ahash_request *req, const void *in) { struct crypto_ahash *ahash = crypto_ahash_reqtfm(req); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(ahash); struct device *dev = drvdata_to_dev(ctx->drvdata); struct ahash_req_ctx *state = ahash_request_ctx(req); u32 tmp; - int rc = 0; memcpy(&tmp, in, sizeof(u32)); - if (tmp != CC_EXPORT_MAGIC) { - rc = -EINVAL; - goto out; - } + if (tmp != CC_EXPORT_MAGIC) + return -EINVAL; in += sizeof(u32); - /* call init() to allocate bufs if the user hasn't */ - if (!state->digest_buff) { - rc = ssi_hash_init(state, ctx); - if (rc) - goto out; - } + cc_init_req(dev, state, ctx); - dma_sync_single_for_cpu(dev, state->digest_buff_dma_addr, - ctx->inter_digestsize, DMA_BIDIRECTIONAL); memcpy(state->digest_buff, in, ctx->inter_digestsize); in += ctx->inter_digestsize; - if (state->digest_bytes_len_dma_addr) { - dma_sync_single_for_cpu(dev, state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, DMA_BIDIRECTIONAL); - memcpy(state->digest_bytes_len, in, HASH_LEN_SIZE); - } + memcpy(state->digest_bytes_len, in, HASH_LEN_SIZE); in += HASH_LEN_SIZE; - dma_sync_single_for_device(dev, state->digest_buff_dma_addr, - ctx->inter_digestsize, DMA_BIDIRECTIONAL); - - if (state->digest_bytes_len_dma_addr) - dma_sync_single_for_device(dev, - state->digest_bytes_len_dma_addr, - HASH_LEN_SIZE, DMA_BIDIRECTIONAL); - - state->buff_index = 0; - /* Sanity check the data as much as possible */ memcpy(&tmp, in, sizeof(u32)); - if (tmp > SSI_MAX_HASH_BLCK_SIZE) { - rc = -EINVAL; - goto out; - } + if (tmp > CC_MAX_HASH_BLCK_SIZE) + return -EINVAL; in += sizeof(u32); - state->buff0_cnt = tmp; - memcpy(state->buff0, in, state->buff0_cnt); - -out: - return rc; -} + state->buf_cnt[0] = tmp; + memcpy(state->buffers[0], in, tmp); -static int ssi_ahash_setkey(struct crypto_ahash *ahash, - const u8 *key, unsigned int keylen) -{ - return ssi_hash_setkey((void *)ahash, key, keylen, false); + return 0; } -struct ssi_hash_template { +struct cc_hash_template { char name[CRYPTO_MAX_ALG_NAME]; char driver_name[CRYPTO_MAX_ALG_NAME]; char mac_name[CRYPTO_MAX_ALG_NAME]; @@ -1839,14 +1574,14 @@ struct ssi_hash_template { int hash_mode; int hw_mode; int inter_digestsize; - struct ssi_drvdata *drvdata; + struct cc_drvdata *drvdata; }; #define CC_STATE_SIZE(_x) \ - ((_x) + HASH_LEN_SIZE + SSI_MAX_HASH_BLCK_SIZE + (2 * sizeof(u32))) + ((_x) + HASH_LEN_SIZE + CC_MAX_HASH_BLCK_SIZE + (2 * sizeof(u32))) /* hash descriptors */ -static struct ssi_hash_template driver_hash[] = { +static struct cc_hash_template driver_hash[] = { //Asynchronize hash template { .name = "sha1", @@ -1856,14 +1591,14 @@ static struct ssi_hash_template driver_hash[] = { .blocksize = SHA1_BLOCK_SIZE, .synchronize = false, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_ahash_update, - .final = ssi_ahash_final, - .finup = ssi_ahash_finup, - .digest = ssi_ahash_digest, - .export = ssi_ahash_export, - .import = ssi_ahash_import, - .setkey = ssi_ahash_setkey, + .init = cc_hash_init, + .update = cc_hash_update, + .final = cc_hash_final, + .finup = cc_hash_finup, + .digest = cc_hash_digest, + .export = cc_hash_export, + .import = cc_hash_import, + .setkey = cc_hash_setkey, .halg = { .digestsize = SHA1_DIGEST_SIZE, .statesize = CC_STATE_SIZE(SHA1_DIGEST_SIZE), @@ -1880,14 +1615,14 @@ static struct ssi_hash_template driver_hash[] = { .mac_driver_name = "hmac-sha256-dx", .blocksize = SHA256_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_ahash_update, - .final = ssi_ahash_final, - .finup = ssi_ahash_finup, - .digest = ssi_ahash_digest, - .export = ssi_ahash_export, - .import = ssi_ahash_import, - .setkey = ssi_ahash_setkey, + .init = cc_hash_init, + .update = cc_hash_update, + .final = cc_hash_final, + .finup = cc_hash_finup, + .digest = cc_hash_digest, + .export = cc_hash_export, + .import = cc_hash_import, + .setkey = cc_hash_setkey, .halg = { .digestsize = SHA256_DIGEST_SIZE, .statesize = CC_STATE_SIZE(SHA256_DIGEST_SIZE) @@ -1904,14 +1639,14 @@ static struct ssi_hash_template driver_hash[] = { .mac_driver_name = "hmac-sha224-dx", .blocksize = SHA224_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_ahash_update, - .final = ssi_ahash_final, - .finup = ssi_ahash_finup, - .digest = ssi_ahash_digest, - .export = ssi_ahash_export, - .import = ssi_ahash_import, - .setkey = ssi_ahash_setkey, + .init = cc_hash_init, + .update = cc_hash_update, + .final = cc_hash_final, + .finup = cc_hash_finup, + .digest = cc_hash_digest, + .export = cc_hash_export, + .import = cc_hash_import, + .setkey = cc_hash_setkey, .halg = { .digestsize = SHA224_DIGEST_SIZE, .statesize = CC_STATE_SIZE(SHA224_DIGEST_SIZE), @@ -1921,7 +1656,7 @@ static struct ssi_hash_template driver_hash[] = { .hw_mode = DRV_HASH_HW_SHA256, .inter_digestsize = SHA256_DIGEST_SIZE, }, -#if (DX_DEV_SHA_MAX > 256) +#if (CC_DEV_SHA_MAX > 256) { .name = "sha384", .driver_name = "sha384-dx", @@ -1929,14 +1664,14 @@ static struct ssi_hash_template driver_hash[] = { .mac_driver_name = "hmac-sha384-dx", .blocksize = SHA384_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_ahash_update, - .final = ssi_ahash_final, - .finup = ssi_ahash_finup, - .digest = ssi_ahash_digest, - .export = ssi_ahash_export, - .import = ssi_ahash_import, - .setkey = ssi_ahash_setkey, + .init = cc_hash_init, + .update = cc_hash_update, + .final = cc_hash_final, + .finup = cc_hash_finup, + .digest = cc_hash_digest, + .export = cc_hash_export, + .import = cc_hash_import, + .setkey = cc_hash_setkey, .halg = { .digestsize = SHA384_DIGEST_SIZE, .statesize = CC_STATE_SIZE(SHA384_DIGEST_SIZE), @@ -1953,14 +1688,14 @@ static struct ssi_hash_template driver_hash[] = { .mac_driver_name = "hmac-sha512-dx", .blocksize = SHA512_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_ahash_update, - .final = ssi_ahash_final, - .finup = ssi_ahash_finup, - .digest = ssi_ahash_digest, - .export = ssi_ahash_export, - .import = ssi_ahash_import, - .setkey = ssi_ahash_setkey, + .init = cc_hash_init, + .update = cc_hash_update, + .final = cc_hash_final, + .finup = cc_hash_finup, + .digest = cc_hash_digest, + .export = cc_hash_export, + .import = cc_hash_import, + .setkey = cc_hash_setkey, .halg = { .digestsize = SHA512_DIGEST_SIZE, .statesize = CC_STATE_SIZE(SHA512_DIGEST_SIZE), @@ -1978,14 +1713,14 @@ static struct ssi_hash_template driver_hash[] = { .mac_driver_name = "hmac-md5-dx", .blocksize = MD5_HMAC_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_ahash_update, - .final = ssi_ahash_final, - .finup = ssi_ahash_finup, - .digest = ssi_ahash_digest, - .export = ssi_ahash_export, - .import = ssi_ahash_import, - .setkey = ssi_ahash_setkey, + .init = cc_hash_init, + .update = cc_hash_update, + .final = cc_hash_final, + .finup = cc_hash_finup, + .digest = cc_hash_digest, + .export = cc_hash_export, + .import = cc_hash_import, + .setkey = cc_hash_setkey, .halg = { .digestsize = MD5_DIGEST_SIZE, .statesize = CC_STATE_SIZE(MD5_DIGEST_SIZE), @@ -2000,14 +1735,14 @@ static struct ssi_hash_template driver_hash[] = { .mac_driver_name = "xcbc-aes-dx", .blocksize = AES_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_mac_update, - .final = ssi_mac_final, - .finup = ssi_mac_finup, - .digest = ssi_mac_digest, - .setkey = ssi_xcbc_setkey, - .export = ssi_ahash_export, - .import = ssi_ahash_import, + .init = cc_hash_init, + .update = cc_mac_update, + .final = cc_mac_final, + .finup = cc_mac_finup, + .digest = cc_mac_digest, + .setkey = cc_xcbc_setkey, + .export = cc_hash_export, + .import = cc_hash_import, .halg = { .digestsize = AES_BLOCK_SIZE, .statesize = CC_STATE_SIZE(AES_BLOCK_SIZE), @@ -2017,20 +1752,19 @@ static struct ssi_hash_template driver_hash[] = { .hw_mode = DRV_CIPHER_XCBC_MAC, .inter_digestsize = AES_BLOCK_SIZE, }, -#if SSI_CC_HAS_CMAC { .mac_name = "cmac(aes)", .mac_driver_name = "cmac-aes-dx", .blocksize = AES_BLOCK_SIZE, .template_ahash = { - .init = ssi_ahash_init, - .update = ssi_mac_update, - .final = ssi_mac_final, - .finup = ssi_mac_finup, - .digest = ssi_mac_digest, - .setkey = ssi_cmac_setkey, - .export = ssi_ahash_export, - .import = ssi_ahash_import, + .init = cc_hash_init, + .update = cc_mac_update, + .final = cc_mac_final, + .finup = cc_mac_finup, + .digest = cc_mac_digest, + .setkey = cc_cmac_setkey, + .export = cc_hash_export, + .import = cc_hash_import, .halg = { .digestsize = AES_BLOCK_SIZE, .statesize = CC_STATE_SIZE(AES_BLOCK_SIZE), @@ -2040,15 +1774,12 @@ static struct ssi_hash_template driver_hash[] = { .hw_mode = DRV_CIPHER_CMAC, .inter_digestsize = AES_BLOCK_SIZE, }, -#endif - }; -static struct ssi_hash_alg * -ssi_hash_create_alg(struct ssi_hash_template *template, struct device *dev, - bool keyed) +static struct cc_hash_alg *cc_alloc_hash_alg(struct cc_hash_template *template, + struct device *dev, bool keyed) { - struct ssi_hash_alg *t_crypto_alg; + struct cc_hash_alg *t_crypto_alg; struct crypto_alg *alg; struct ahash_alg *halg; @@ -2056,7 +1787,6 @@ ssi_hash_create_alg(struct ssi_hash_template *template, struct device *dev, if (!t_crypto_alg) return ERR_PTR(-ENOMEM); - t_crypto_alg->ahash_alg = template->template_ahash; halg = &t_crypto_alg->ahash_alg; alg = &halg->halg.base; @@ -2074,13 +1804,13 @@ ssi_hash_create_alg(struct ssi_hash_template *template, struct device *dev, template->driver_name); } alg->cra_module = THIS_MODULE; - alg->cra_ctxsize = sizeof(struct ssi_hash_ctx); - alg->cra_priority = SSI_CRA_PRIO; + alg->cra_ctxsize = sizeof(struct cc_hash_ctx); + alg->cra_priority = CC_CRA_PRIO; alg->cra_blocksize = template->blocksize; alg->cra_alignmask = 0; - alg->cra_exit = ssi_hash_cra_exit; + alg->cra_exit = cc_cra_exit; - alg->cra_init = ssi_ahash_cra_init; + alg->cra_init = cc_cra_init; alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_KERN_DRIVER_ONLY; alg->cra_type = &crypto_ahash_type; @@ -2092,36 +1822,32 @@ ssi_hash_create_alg(struct ssi_hash_template *template, struct device *dev, return t_crypto_alg; } -int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata) +int cc_init_hash_sram(struct cc_drvdata *drvdata) { - struct ssi_hash_handle *hash_handle = drvdata->hash_handle; - ssi_sram_addr_t sram_buff_ofs = hash_handle->digest_len_sram_addr; + struct cc_hash_handle *hash_handle = drvdata->hash_handle; + cc_sram_addr_t sram_buff_ofs = hash_handle->digest_len_sram_addr; unsigned int larval_seq_len = 0; struct cc_hw_desc larval_seq[CC_DIGEST_SIZE_MAX / sizeof(u32)]; - struct device *dev = drvdata_to_dev(drvdata); int rc = 0; -#if (DX_DEV_SHA_MAX > 256) - int i; -#endif /* Copy-to-sram digest-len */ - ssi_sram_mgr_const2sram_desc(digest_len_init, sram_buff_ofs, - ARRAY_SIZE(digest_len_init), - larval_seq, &larval_seq_len); + cc_set_sram_desc(digest_len_init, sram_buff_ofs, + ARRAY_SIZE(digest_len_init), larval_seq, + &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) + if (rc) goto init_digest_const_err; sram_buff_ofs += sizeof(digest_len_init); larval_seq_len = 0; -#if (DX_DEV_SHA_MAX > 256) +#if (CC_DEV_SHA_MAX > 256) /* Copy-to-sram digest-len for sha384/512 */ - ssi_sram_mgr_const2sram_desc(digest_len_sha512_init, sram_buff_ofs, - ARRAY_SIZE(digest_len_sha512_init), - larval_seq, &larval_seq_len); + cc_set_sram_desc(digest_len_sha512_init, sram_buff_ofs, + ARRAY_SIZE(digest_len_sha512_init), + larval_seq, &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) + if (rc) goto init_digest_const_err; sram_buff_ofs += sizeof(digest_len_sha512_init); @@ -2132,88 +1858,89 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata) hash_handle->larval_digest_sram_addr = sram_buff_ofs; /* Copy-to-sram initial SHA* digests */ - ssi_sram_mgr_const2sram_desc(md5_init, sram_buff_ofs, - ARRAY_SIZE(md5_init), larval_seq, - &larval_seq_len); + cc_set_sram_desc(md5_init, sram_buff_ofs, ARRAY_SIZE(md5_init), + larval_seq, &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) + if (rc) goto init_digest_const_err; sram_buff_ofs += sizeof(md5_init); larval_seq_len = 0; - ssi_sram_mgr_const2sram_desc(sha1_init, sram_buff_ofs, - ARRAY_SIZE(sha1_init), larval_seq, - &larval_seq_len); + cc_set_sram_desc(sha1_init, sram_buff_ofs, + ARRAY_SIZE(sha1_init), larval_seq, + &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) + if (rc) goto init_digest_const_err; sram_buff_ofs += sizeof(sha1_init); larval_seq_len = 0; - ssi_sram_mgr_const2sram_desc(sha224_init, sram_buff_ofs, - ARRAY_SIZE(sha224_init), larval_seq, - &larval_seq_len); + cc_set_sram_desc(sha224_init, sram_buff_ofs, + ARRAY_SIZE(sha224_init), larval_seq, + &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) + if (rc) goto init_digest_const_err; sram_buff_ofs += sizeof(sha224_init); larval_seq_len = 0; - ssi_sram_mgr_const2sram_desc(sha256_init, sram_buff_ofs, - ARRAY_SIZE(sha256_init), larval_seq, - &larval_seq_len); + cc_set_sram_desc(sha256_init, sram_buff_ofs, + ARRAY_SIZE(sha256_init), larval_seq, + &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) + if (rc) goto init_digest_const_err; sram_buff_ofs += sizeof(sha256_init); larval_seq_len = 0; -#if (DX_DEV_SHA_MAX > 256) - /* We are forced to swap each double-word larval before copying to sram */ - for (i = 0; i < ARRAY_SIZE(sha384_init); i++) { - const u32 const0 = ((u32 *)((u64 *)&sha384_init[i]))[1]; - const u32 const1 = ((u32 *)((u64 *)&sha384_init[i]))[0]; - - ssi_sram_mgr_const2sram_desc(&const0, sram_buff_ofs, 1, - larval_seq, &larval_seq_len); - sram_buff_ofs += sizeof(u32); - ssi_sram_mgr_const2sram_desc(&const1, sram_buff_ofs, 1, - larval_seq, &larval_seq_len); - sram_buff_ofs += sizeof(u32); - } +#if (CC_DEV_SHA_MAX > 256) + cc_set_sram_desc((u32 *)sha384_init, sram_buff_ofs, + (ARRAY_SIZE(sha384_init) * 2), larval_seq, + &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) { - dev_err(dev, "send_request() failed (rc = %d)\n", rc); + if (rc) goto init_digest_const_err; - } + sram_buff_ofs += sizeof(sha384_init); larval_seq_len = 0; - for (i = 0; i < ARRAY_SIZE(sha512_init); i++) { - const u32 const0 = ((u32 *)((u64 *)&sha512_init[i]))[1]; - const u32 const1 = ((u32 *)((u64 *)&sha512_init[i]))[0]; - - ssi_sram_mgr_const2sram_desc(&const0, sram_buff_ofs, 1, - larval_seq, &larval_seq_len); - sram_buff_ofs += sizeof(u32); - ssi_sram_mgr_const2sram_desc(&const1, sram_buff_ofs, 1, - larval_seq, &larval_seq_len); - sram_buff_ofs += sizeof(u32); - } + cc_set_sram_desc((u32 *)sha512_init, sram_buff_ofs, + (ARRAY_SIZE(sha512_init) * 2), larval_seq, + &larval_seq_len); rc = send_request_init(drvdata, larval_seq, larval_seq_len); - if (unlikely(rc != 0)) { - dev_err(dev, "send_request() failed (rc = %d)\n", rc); + if (rc) goto init_digest_const_err; - } #endif init_digest_const_err: return rc; } -int ssi_hash_alloc(struct ssi_drvdata *drvdata) +static void __init cc_swap_dwords(u32 *buf, unsigned long size) { - struct ssi_hash_handle *hash_handle; - ssi_sram_addr_t sram_buff; + int i; + u32 tmp; + + for (i = 0; i < size; i += 2) { + tmp = buf[i]; + buf[i] = buf[i + 1]; + buf[i + 1] = tmp; + } +} + +/* + * Due to the way the HW works we need to swap every + * double word in the SHA384 and SHA512 larval hashes + */ +void __init cc_hash_global_init(void) +{ + cc_swap_dwords((u32 *)&sha384_init, (ARRAY_SIZE(sha384_init) * 2)); + cc_swap_dwords((u32 *)&sha512_init, (ARRAY_SIZE(sha512_init) * 2)); +} + +int cc_hash_alloc(struct cc_drvdata *drvdata) +{ + struct cc_hash_handle *hash_handle; + cc_sram_addr_t sram_buff; u32 sram_size_to_alloc; struct device *dev = drvdata_to_dev(drvdata); int rc = 0; @@ -2227,7 +1954,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata) drvdata->hash_handle = hash_handle; sram_size_to_alloc = sizeof(digest_len_init) + -#if (DX_DEV_SHA_MAX > 256) +#if (CC_DEV_SHA_MAX > 256) sizeof(digest_len_sha512_init) + sizeof(sha384_init) + sizeof(sha512_init) + @@ -2237,7 +1964,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata) sizeof(sha224_init) + sizeof(sha256_init); - sram_buff = ssi_sram_mgr_alloc(drvdata, sram_size_to_alloc); + sram_buff = cc_sram_alloc(drvdata, sram_size_to_alloc); if (sram_buff == NULL_SRAM_ADDR) { dev_err(dev, "SRAM pool exhausted\n"); rc = -ENOMEM; @@ -2248,19 +1975,19 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata) hash_handle->digest_len_sram_addr = sram_buff; /*must be set before the alg registration as it is being used there*/ - rc = ssi_hash_init_sram_digest_consts(drvdata); - if (unlikely(rc != 0)) { + rc = cc_init_hash_sram(drvdata); + if (rc) { dev_err(dev, "Init digest CONST failed (rc=%d)\n", rc); goto fail; } /* ahash registration */ for (alg = 0; alg < ARRAY_SIZE(driver_hash); alg++) { - struct ssi_hash_alg *t_alg; + struct cc_hash_alg *t_alg; int hw_mode = driver_hash[alg].hw_mode; /* register hmac version */ - t_alg = ssi_hash_create_alg(&driver_hash[alg], dev, true); + t_alg = cc_alloc_hash_alg(&driver_hash[alg], dev, true); if (IS_ERR(t_alg)) { rc = PTR_ERR(t_alg); dev_err(dev, "%s alg allocation failed\n", @@ -2270,22 +1997,21 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata) t_alg->drvdata = drvdata; rc = crypto_register_ahash(&t_alg->ahash_alg); - if (unlikely(rc)) { + if (rc) { dev_err(dev, "%s alg registration failed\n", driver_hash[alg].driver_name); kfree(t_alg); goto fail; } else { - list_add_tail(&t_alg->entry, - &hash_handle->hash_list); + list_add_tail(&t_alg->entry, &hash_handle->hash_list); } - if ((hw_mode == DRV_CIPHER_XCBC_MAC) || - (hw_mode == DRV_CIPHER_CMAC)) + if (hw_mode == DRV_CIPHER_XCBC_MAC || + hw_mode == DRV_CIPHER_CMAC) continue; /* register hash version */ - t_alg = ssi_hash_create_alg(&driver_hash[alg], dev, false); + t_alg = cc_alloc_hash_alg(&driver_hash[alg], dev, false); if (IS_ERR(t_alg)) { rc = PTR_ERR(t_alg); dev_err(dev, "%s alg allocation failed\n", @@ -2295,7 +2021,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata) t_alg->drvdata = drvdata; rc = crypto_register_ahash(&t_alg->ahash_alg); - if (unlikely(rc)) { + if (rc) { dev_err(dev, "%s alg registration failed\n", driver_hash[alg].driver_name); kfree(t_alg); @@ -2313,13 +2039,14 @@ fail: return rc; } -int ssi_hash_free(struct ssi_drvdata *drvdata) +int cc_hash_free(struct cc_drvdata *drvdata) { - struct ssi_hash_alg *t_hash_alg, *hash_n; - struct ssi_hash_handle *hash_handle = drvdata->hash_handle; + struct cc_hash_alg *t_hash_alg, *hash_n; + struct cc_hash_handle *hash_handle = drvdata->hash_handle; if (hash_handle) { - list_for_each_entry_safe(t_hash_alg, hash_n, &hash_handle->hash_list, entry) { + list_for_each_entry_safe(t_hash_alg, hash_n, + &hash_handle->hash_list, entry) { crypto_unregister_ahash(&t_hash_alg->ahash_alg); list_del(&t_hash_alg->entry); kfree(t_hash_alg); @@ -2331,14 +2058,13 @@ int ssi_hash_free(struct ssi_drvdata *drvdata) return 0; } -static void ssi_hash_create_xcbc_setup(struct ahash_request *areq, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_setup_xcbc(struct ahash_request *areq, struct cc_hw_desc desc[], + unsigned int *seq_size) { unsigned int idx = *seq_size; struct ahash_req_ctx *state = ahash_request_ctx(areq); struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); /* Setup XCBC MAC K1 */ hw_desc_init(&desc[idx]); @@ -2354,8 +2080,8 @@ static void ssi_hash_create_xcbc_setup(struct ahash_request *areq, /* Setup XCBC MAC K2 */ hw_desc_init(&desc[idx]); - set_din_type(&desc[idx], DMA_DLLI, (ctx->opad_tmp_keys_dma_addr + - XCBC_MAC_K2_OFFSET), + set_din_type(&desc[idx], DMA_DLLI, + (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K2_OFFSET), CC_AES_128_BIT_KEY_SIZE, NS_BIT); set_setup_mode(&desc[idx], SETUP_LOAD_STATE1); set_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC); @@ -2366,8 +2092,8 @@ static void ssi_hash_create_xcbc_setup(struct ahash_request *areq, /* Setup XCBC MAC K3 */ hw_desc_init(&desc[idx]); - set_din_type(&desc[idx], DMA_DLLI, (ctx->opad_tmp_keys_dma_addr + - XCBC_MAC_K3_OFFSET), + set_din_type(&desc[idx], DMA_DLLI, + (ctx->opad_tmp_keys_dma_addr + XCBC_MAC_K3_OFFSET), CC_AES_128_BIT_KEY_SIZE, NS_BIT); set_setup_mode(&desc[idx], SETUP_LOAD_STATE2); set_cipher_mode(&desc[idx], DRV_CIPHER_XCBC_MAC); @@ -2389,14 +2115,13 @@ static void ssi_hash_create_xcbc_setup(struct ahash_request *areq, *seq_size = idx; } -static void ssi_hash_create_cmac_setup(struct ahash_request *areq, - struct cc_hw_desc desc[], - unsigned int *seq_size) +static void cc_setup_cmac(struct ahash_request *areq, struct cc_hw_desc desc[], + unsigned int *seq_size) { unsigned int idx = *seq_size; struct ahash_req_ctx *state = ahash_request_ctx(areq); struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq); - struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm); + struct cc_hash_ctx *ctx = crypto_ahash_ctx(tfm); /* Setup CMAC Key */ hw_desc_init(&desc[idx]); @@ -2423,17 +2148,15 @@ static void ssi_hash_create_cmac_setup(struct ahash_request *areq, *seq_size = idx; } -static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx, - struct ssi_hash_ctx *ctx, - unsigned int flow_mode, - struct cc_hw_desc desc[], - bool is_not_last_data, - unsigned int *seq_size) +static void cc_set_desc(struct ahash_req_ctx *areq_ctx, + struct cc_hash_ctx *ctx, unsigned int flow_mode, + struct cc_hw_desc desc[], bool is_not_last_data, + unsigned int *seq_size) { unsigned int idx = *seq_size; struct device *dev = drvdata_to_dev(ctx->drvdata); - if (likely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_DLLI)) { + if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_DLLI) { hw_desc_init(&desc[idx]); set_din_type(&desc[idx], DMA_DLLI, sg_dma_address(areq_ctx->curr_sg), @@ -2441,7 +2164,7 @@ static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx, set_flow_mode(&desc[idx], flow_mode); idx++; } else { - if (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL) { + if (areq_ctx->data_dma_buf_type == CC_DMA_BUF_NULL) { dev_dbg(dev, " NULL mode\n"); /* nothing to build */ return; @@ -2469,6 +2192,29 @@ static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx, *seq_size = idx; } +static const void *cc_larval_digest(struct device *dev, u32 mode) +{ + switch (mode) { + case DRV_HASH_MD5: + return md5_init; + case DRV_HASH_SHA1: + return sha1_init; + case DRV_HASH_SHA224: + return sha224_init; + case DRV_HASH_SHA256: + return sha256_init; +#if (CC_DEV_SHA_MAX > 256) + case DRV_HASH_SHA384: + return sha384_init; + case DRV_HASH_SHA512: + return sha512_init; +#endif + default: + dev_err(dev, "Invalid hash mode (%d)\n", mode); + return md5_init; + } +} + /*! * Gets the address of the initial digest in SRAM * according to the given hash mode @@ -2476,12 +2222,12 @@ static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx, * \param drvdata * \param mode The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256 * - * \return u32 The address of the inital digest in SRAM + * \return u32 The address of the initial digest in SRAM */ -ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, u32 mode) +cc_sram_addr_t cc_larval_digest_addr(void *drvdata, u32 mode) { - struct ssi_drvdata *_drvdata = (struct ssi_drvdata *)drvdata; - struct ssi_hash_handle *hash_handle = _drvdata->hash_handle; + struct cc_drvdata *_drvdata = (struct cc_drvdata *)drvdata; + struct cc_hash_handle *hash_handle = _drvdata->hash_handle; struct device *dev = drvdata_to_dev(_drvdata); switch (mode) { @@ -2501,7 +2247,7 @@ ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, u32 mode) sizeof(md5_init) + sizeof(sha1_init) + sizeof(sha224_init)); -#if (DX_DEV_SHA_MAX > 256) +#if (CC_DEV_SHA_MAX > 256) case DRV_HASH_SHA384: return (hash_handle->larval_digest_sram_addr + sizeof(md5_init) + @@ -2524,12 +2270,12 @@ ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, u32 mode) return hash_handle->larval_digest_sram_addr; } -ssi_sram_addr_t -ssi_ahash_get_initial_digest_len_sram_addr(void *drvdata, u32 mode) +cc_sram_addr_t +cc_digest_len_addr(void *drvdata, u32 mode) { - struct ssi_drvdata *_drvdata = (struct ssi_drvdata *)drvdata; - struct ssi_hash_handle *hash_handle = _drvdata->hash_handle; - ssi_sram_addr_t digest_len_addr = hash_handle->digest_len_sram_addr; + struct cc_drvdata *_drvdata = (struct cc_drvdata *)drvdata; + struct cc_hash_handle *hash_handle = _drvdata->hash_handle; + cc_sram_addr_t digest_len_addr = hash_handle->digest_len_sram_addr; switch (mode) { case DRV_HASH_SHA1: @@ -2537,7 +2283,7 @@ ssi_ahash_get_initial_digest_len_sram_addr(void *drvdata, u32 mode) case DRV_HASH_SHA256: case DRV_HASH_MD5: return digest_len_addr; -#if (DX_DEV_SHA_MAX > 256) +#if (CC_DEV_SHA_MAX > 256) case DRV_HASH_SHA384: case DRV_HASH_SHA512: return digest_len_addr + sizeof(digest_len_init); diff --git a/drivers/staging/ccree/cc_hash.h b/drivers/staging/ccree/cc_hash.h new file mode 100644 index 000000000000..aa42b8f4348d --- /dev/null +++ b/drivers/staging/ccree/cc_hash.h @@ -0,0 +1,114 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_hash.h + * ARM CryptoCell Hash Crypto API + */ + +#ifndef __CC_HASH_H__ +#define __CC_HASH_H__ + +#include "cc_buffer_mgr.h" + +#define HMAC_IPAD_CONST 0x36363636 +#define HMAC_OPAD_CONST 0x5C5C5C5C +#if (CC_DEV_SHA_MAX > 256) +#define HASH_LEN_SIZE 16 +#define CC_MAX_HASH_DIGEST_SIZE SHA512_DIGEST_SIZE +#define CC_MAX_HASH_BLCK_SIZE SHA512_BLOCK_SIZE +#else +#define HASH_LEN_SIZE 8 +#define CC_MAX_HASH_DIGEST_SIZE SHA256_DIGEST_SIZE +#define CC_MAX_HASH_BLCK_SIZE SHA256_BLOCK_SIZE +#endif + +#define XCBC_MAC_K1_OFFSET 0 +#define XCBC_MAC_K2_OFFSET 16 +#define XCBC_MAC_K3_OFFSET 32 + +#define CC_EXPORT_MAGIC 0xC2EE1070U + +/* this struct was taken from drivers/crypto/nx/nx-aes-xcbc.c and it is used + * for xcbc/cmac statesize + */ +struct aeshash_state { + u8 state[AES_BLOCK_SIZE]; + unsigned int count; + u8 buffer[AES_BLOCK_SIZE]; +}; + +/* ahash state */ +struct ahash_req_ctx { + u8 buffers[2][CC_MAX_HASH_BLCK_SIZE] ____cacheline_aligned; + u8 digest_result_buff[CC_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned; + u8 digest_buff[CC_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned; + u8 opad_digest_buff[CC_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned; + u8 digest_bytes_len[HASH_LEN_SIZE] ____cacheline_aligned; + struct async_gen_req_ctx gen_ctx ____cacheline_aligned; + enum cc_req_dma_buf_type data_dma_buf_type; + dma_addr_t opad_digest_dma_addr; + dma_addr_t digest_buff_dma_addr; + dma_addr_t digest_bytes_len_dma_addr; + dma_addr_t digest_result_dma_addr; + u32 buf_cnt[2]; + u32 buff_index; + u32 xcbc_count; /* count xcbc update operatations */ + struct scatterlist buff_sg[2]; + struct scatterlist *curr_sg; + u32 in_nents; + u32 mlli_nents; + struct mlli_params mlli_params; +}; + +static inline u32 *cc_hash_buf_cnt(struct ahash_req_ctx *state) +{ + return &state->buf_cnt[state->buff_index]; +} + +static inline u8 *cc_hash_buf(struct ahash_req_ctx *state) +{ + return state->buffers[state->buff_index]; +} + +static inline u32 *cc_next_buf_cnt(struct ahash_req_ctx *state) +{ + return &state->buf_cnt[state->buff_index ^ 1]; +} + +static inline u8 *cc_next_buf(struct ahash_req_ctx *state) +{ + return state->buffers[state->buff_index ^ 1]; +} + +int cc_hash_alloc(struct cc_drvdata *drvdata); +int cc_init_hash_sram(struct cc_drvdata *drvdata); +int cc_hash_free(struct cc_drvdata *drvdata); + +/*! + * Gets the initial digest length + * + * \param drvdata + * \param mode The Hash mode. Supported modes: + * MD5/SHA1/SHA224/SHA256/SHA384/SHA512 + * + * \return u32 returns the address of the initial digest length in SRAM + */ +cc_sram_addr_t +cc_digest_len_addr(void *drvdata, u32 mode); + +/*! + * Gets the address of the initial digest in SRAM + * according to the given hash mode + * + * \param drvdata + * \param mode The Hash mode. Supported modes: + * MD5/SHA1/SHA224/SHA256/SHA384/SHA512 + * + * \return u32 The address of the initial digest in SRAM + */ +cc_sram_addr_t cc_larval_digest_addr(void *drvdata, u32 mode); + +void cc_hash_global_init(void); + +#endif /*__CC_HASH_H__*/ + diff --git a/drivers/staging/ccree/cc_host_regs.h b/drivers/staging/ccree/cc_host_regs.h new file mode 100644 index 000000000000..69ef2fa0cb9b --- /dev/null +++ b/drivers/staging/ccree/cc_host_regs.h @@ -0,0 +1,142 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#ifndef __CC_HOST_H__ +#define __CC_HOST_H__ + +// -------------------------------------- +// BLOCK: HOST_P +// -------------------------------------- +#define CC_HOST_IRR_REG_OFFSET 0xA00UL +#define CC_HOST_IRR_DSCRPTR_COMPLETION_LOW_INT_BIT_SHIFT 0x2UL +#define CC_HOST_IRR_DSCRPTR_COMPLETION_LOW_INT_BIT_SIZE 0x1UL +#define CC_HOST_IRR_AXI_ERR_INT_BIT_SHIFT 0x8UL +#define CC_HOST_IRR_AXI_ERR_INT_BIT_SIZE 0x1UL +#define CC_HOST_IRR_GPR0_BIT_SHIFT 0xBUL +#define CC_HOST_IRR_GPR0_BIT_SIZE 0x1UL +#define CC_HOST_IRR_DSCRPTR_WATERMARK_INT_BIT_SHIFT 0x13UL +#define CC_HOST_IRR_DSCRPTR_WATERMARK_INT_BIT_SIZE 0x1UL +#define CC_HOST_IRR_AXIM_COMP_INT_BIT_SHIFT 0x17UL +#define CC_HOST_IRR_AXIM_COMP_INT_BIT_SIZE 0x1UL +#define CC_HOST_IMR_REG_OFFSET 0xA04UL +#define CC_HOST_IMR_NOT_USED_MASK_BIT_SHIFT 0x1UL +#define CC_HOST_IMR_NOT_USED_MASK_BIT_SIZE 0x1UL +#define CC_HOST_IMR_DSCRPTR_COMPLETION_MASK_BIT_SHIFT 0x2UL +#define CC_HOST_IMR_DSCRPTR_COMPLETION_MASK_BIT_SIZE 0x1UL +#define CC_HOST_IMR_AXI_ERR_MASK_BIT_SHIFT 0x8UL +#define CC_HOST_IMR_AXI_ERR_MASK_BIT_SIZE 0x1UL +#define CC_HOST_IMR_GPR0_BIT_SHIFT 0xBUL +#define CC_HOST_IMR_GPR0_BIT_SIZE 0x1UL +#define CC_HOST_IMR_DSCRPTR_WATERMARK_MASK0_BIT_SHIFT 0x13UL +#define CC_HOST_IMR_DSCRPTR_WATERMARK_MASK0_BIT_SIZE 0x1UL +#define CC_HOST_IMR_AXIM_COMP_INT_MASK_BIT_SHIFT 0x17UL +#define CC_HOST_IMR_AXIM_COMP_INT_MASK_BIT_SIZE 0x1UL +#define CC_HOST_ICR_REG_OFFSET 0xA08UL +#define CC_HOST_ICR_DSCRPTR_COMPLETION_BIT_SHIFT 0x2UL +#define CC_HOST_ICR_DSCRPTR_COMPLETION_BIT_SIZE 0x1UL +#define CC_HOST_ICR_AXI_ERR_CLEAR_BIT_SHIFT 0x8UL +#define CC_HOST_ICR_AXI_ERR_CLEAR_BIT_SIZE 0x1UL +#define CC_HOST_ICR_GPR_INT_CLEAR_BIT_SHIFT 0xBUL +#define CC_HOST_ICR_GPR_INT_CLEAR_BIT_SIZE 0x1UL +#define CC_HOST_ICR_DSCRPTR_WATERMARK_QUEUE0_CLEAR_BIT_SHIFT 0x13UL +#define CC_HOST_ICR_DSCRPTR_WATERMARK_QUEUE0_CLEAR_BIT_SIZE 0x1UL +#define CC_HOST_ICR_AXIM_COMP_INT_CLEAR_BIT_SHIFT 0x17UL +#define CC_HOST_ICR_AXIM_COMP_INT_CLEAR_BIT_SIZE 0x1UL +#define CC_HOST_SIGNATURE_REG_OFFSET 0xA24UL +#define CC_HOST_SIGNATURE_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_SIGNATURE_VALUE_BIT_SIZE 0x20UL +#define CC_HOST_BOOT_REG_OFFSET 0xA28UL +#define CC_HOST_BOOT_SYNTHESIS_CONFIG_BIT_SHIFT 0x0UL +#define CC_HOST_BOOT_SYNTHESIS_CONFIG_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_LARGE_RKEK_LOCAL_BIT_SHIFT 0x1UL +#define CC_HOST_BOOT_LARGE_RKEK_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_HASH_IN_FUSES_LOCAL_BIT_SHIFT 0x2UL +#define CC_HOST_BOOT_HASH_IN_FUSES_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_EXT_MEM_SECURED_LOCAL_BIT_SHIFT 0x3UL +#define CC_HOST_BOOT_EXT_MEM_SECURED_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_RKEK_ECC_EXISTS_LOCAL_N_BIT_SHIFT 0x5UL +#define CC_HOST_BOOT_RKEK_ECC_EXISTS_LOCAL_N_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_SRAM_SIZE_LOCAL_BIT_SHIFT 0x6UL +#define CC_HOST_BOOT_SRAM_SIZE_LOCAL_BIT_SIZE 0x3UL +#define CC_HOST_BOOT_DSCRPTR_EXISTS_LOCAL_BIT_SHIFT 0x9UL +#define CC_HOST_BOOT_DSCRPTR_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_PAU_EXISTS_LOCAL_BIT_SHIFT 0xAUL +#define CC_HOST_BOOT_PAU_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_RNG_EXISTS_LOCAL_BIT_SHIFT 0xBUL +#define CC_HOST_BOOT_RNG_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_PKA_EXISTS_LOCAL_BIT_SHIFT 0xCUL +#define CC_HOST_BOOT_PKA_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_RC4_EXISTS_LOCAL_BIT_SHIFT 0xDUL +#define CC_HOST_BOOT_RC4_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_SHA_512_PRSNT_LOCAL_BIT_SHIFT 0xEUL +#define CC_HOST_BOOT_SHA_512_PRSNT_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_SHA_256_PRSNT_LOCAL_BIT_SHIFT 0xFUL +#define CC_HOST_BOOT_SHA_256_PRSNT_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_MD5_PRSNT_LOCAL_BIT_SHIFT 0x10UL +#define CC_HOST_BOOT_MD5_PRSNT_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_HASH_EXISTS_LOCAL_BIT_SHIFT 0x11UL +#define CC_HOST_BOOT_HASH_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_C2_EXISTS_LOCAL_BIT_SHIFT 0x12UL +#define CC_HOST_BOOT_C2_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_DES_EXISTS_LOCAL_BIT_SHIFT 0x13UL +#define CC_HOST_BOOT_DES_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_XCBC_MAC_EXISTS_LOCAL_BIT_SHIFT 0x14UL +#define CC_HOST_BOOT_AES_XCBC_MAC_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_CMAC_EXISTS_LOCAL_BIT_SHIFT 0x15UL +#define CC_HOST_BOOT_AES_CMAC_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_CCM_EXISTS_LOCAL_BIT_SHIFT 0x16UL +#define CC_HOST_BOOT_AES_CCM_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_XEX_HW_T_CALC_LOCAL_BIT_SHIFT 0x17UL +#define CC_HOST_BOOT_AES_XEX_HW_T_CALC_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_XEX_EXISTS_LOCAL_BIT_SHIFT 0x18UL +#define CC_HOST_BOOT_AES_XEX_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_CTR_EXISTS_LOCAL_BIT_SHIFT 0x19UL +#define CC_HOST_BOOT_CTR_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_DIN_BYTE_RESOLUTION_LOCAL_BIT_SHIFT 0x1AUL +#define CC_HOST_BOOT_AES_DIN_BYTE_RESOLUTION_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_TUNNELING_ENB_LOCAL_BIT_SHIFT 0x1BUL +#define CC_HOST_BOOT_TUNNELING_ENB_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_SUPPORT_256_192_KEY_LOCAL_BIT_SHIFT 0x1CUL +#define CC_HOST_BOOT_SUPPORT_256_192_KEY_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_ONLY_ENCRYPT_LOCAL_BIT_SHIFT 0x1DUL +#define CC_HOST_BOOT_ONLY_ENCRYPT_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_BOOT_AES_EXISTS_LOCAL_BIT_SHIFT 0x1EUL +#define CC_HOST_BOOT_AES_EXISTS_LOCAL_BIT_SIZE 0x1UL +#define CC_HOST_VERSION_REG_OFFSET 0xA40UL +#define CC_HOST_VERSION_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_VERSION_VALUE_BIT_SIZE 0x20UL +#define CC_HOST_KFDE0_VALID_REG_OFFSET 0xA60UL +#define CC_HOST_KFDE0_VALID_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_KFDE0_VALID_VALUE_BIT_SIZE 0x1UL +#define CC_HOST_KFDE1_VALID_REG_OFFSET 0xA64UL +#define CC_HOST_KFDE1_VALID_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_KFDE1_VALID_VALUE_BIT_SIZE 0x1UL +#define CC_HOST_KFDE2_VALID_REG_OFFSET 0xA68UL +#define CC_HOST_KFDE2_VALID_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_KFDE2_VALID_VALUE_BIT_SIZE 0x1UL +#define CC_HOST_KFDE3_VALID_REG_OFFSET 0xA6CUL +#define CC_HOST_KFDE3_VALID_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_KFDE3_VALID_VALUE_BIT_SIZE 0x1UL +#define CC_HOST_GPR0_REG_OFFSET 0xA70UL +#define CC_HOST_GPR0_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_GPR0_VALUE_BIT_SIZE 0x20UL +#define CC_GPR_HOST_REG_OFFSET 0xA74UL +#define CC_GPR_HOST_VALUE_BIT_SHIFT 0x0UL +#define CC_GPR_HOST_VALUE_BIT_SIZE 0x20UL +#define CC_HOST_POWER_DOWN_EN_REG_OFFSET 0xA78UL +#define CC_HOST_POWER_DOWN_EN_VALUE_BIT_SHIFT 0x0UL +#define CC_HOST_POWER_DOWN_EN_VALUE_BIT_SIZE 0x1UL +// -------------------------------------- +// BLOCK: HOST_SRAM +// -------------------------------------- +#define CC_SRAM_DATA_REG_OFFSET 0xF00UL +#define CC_SRAM_DATA_VALUE_BIT_SHIFT 0x0UL +#define CC_SRAM_DATA_VALUE_BIT_SIZE 0x20UL +#define CC_SRAM_ADDR_REG_OFFSET 0xF04UL +#define CC_SRAM_ADDR_VALUE_BIT_SHIFT 0x0UL +#define CC_SRAM_ADDR_VALUE_BIT_SIZE 0xFUL +#define CC_SRAM_DATA_READY_REG_OFFSET 0xF08UL +#define CC_SRAM_DATA_READY_VALUE_BIT_SHIFT 0x0UL +#define CC_SRAM_DATA_READY_VALUE_BIT_SIZE 0x1UL + +#endif //__CC_HOST_H__ diff --git a/drivers/staging/ccree/cc_hw_queue_defs.h b/drivers/staging/ccree/cc_hw_queue_defs.h index 2ae0f655e7a0..a79f28cec5ae 100644 --- a/drivers/staging/ccree/cc_hw_queue_defs.h +++ b/drivers/staging/ccree/cc_hw_queue_defs.h @@ -1,25 +1,12 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #ifndef __CC_HW_QUEUE_DEFS_H__ #define __CC_HW_QUEUE_DEFS_H__ #include <linux/types.h> -#include "dx_crys_kernel.h" +#include "cc_kernel_regs.h" #include <linux/bitfield.h> /****************************************************************************** @@ -30,14 +17,12 @@ /* Define max. available slots in HW queue */ #define HW_QUEUE_SLOTS_MAX 15 -#define CC_REG_NAME(word, name) DX_DSCRPTR_QUEUE_WORD ## word ## _ ## name - #define CC_REG_LOW(word, name) \ - (DX_DSCRPTR_QUEUE_WORD ## word ## _ ## name ## _BIT_SHIFT) + (CC_DSCRPTR_QUEUE_WORD ## word ## _ ## name ## _BIT_SHIFT) #define CC_REG_HIGH(word, name) \ (CC_REG_LOW(word, name) + \ - DX_DSCRPTR_QUEUE_WORD ## word ## _ ## name ## _BIT_SIZE - 1) + CC_DSCRPTR_QUEUE_WORD ## word ## _ ## name ## _BIT_SIZE - 1) #define CC_GENMASK(word, name) \ GENMASK(CC_REG_HIGH(word, name), CC_REG_LOW(word, name)) @@ -122,7 +107,6 @@ enum cc_flow_mode { AES_to_AES_to_HASH_and_DOUT = 13, AES_to_AES_to_HASH = 14, AES_to_HASH_and_AES = 15, - DIN_MULTI2_DOUT = 16, DIN_AES_AESMAC = 17, HASH_to_DOUT = 18, /* setup flows */ @@ -130,7 +114,6 @@ enum cc_flow_mode { S_DIN_to_AES2 = 33, S_DIN_to_DES = 34, S_DIN_to_RC4 = 35, - S_DIN_to_MULTI2 = 36, S_DIN_to_HASH = 37, S_AES_to_DOUT = 38, S_AES2_to_DOUT = 39, @@ -203,6 +186,19 @@ enum cc_hw_des_key_size { END_OF_DES_KEYS = S32_MAX, }; +enum cc_hash_conf_pad { + HASH_PADDING_DISABLED = 0, + HASH_PADDING_ENABLED = 1, + HASH_DIGEST_RESULT_LITTLE_ENDIAN = 2, + HASH_CONFIG1_PADDING_RESERVE32 = S32_MAX, +}; + +enum cc_hash_cipher_pad { + DO_NOT_PAD = 0, + DO_PAD = 1, + HASH_CIPHER_DO_PADDING_RESERVE32 = S32_MAX, +}; + /*****************************/ /* Descriptor packing macros */ /*****************************/ diff --git a/drivers/staging/ccree/ssi_ivgen.c b/drivers/staging/ccree/cc_ivgen.c index 3f082f41ae8f..c47f419b277b 100644 --- a/drivers/staging/ccree/ssi_ivgen.c +++ b/drivers/staging/ccree/cc_ivgen.c @@ -1,38 +1,23 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ -#include <linux/platform_device.h> #include <crypto/ctr.h> -#include "ssi_config.h" -#include "ssi_driver.h" -#include "ssi_ivgen.h" -#include "ssi_request_mgr.h" -#include "ssi_sram_mgr.h" -#include "ssi_buffer_mgr.h" +#include "cc_driver.h" +#include "cc_ivgen.h" +#include "cc_request_mgr.h" +#include "cc_sram_mgr.h" +#include "cc_buffer_mgr.h" /* The max. size of pool *MUST* be <= SRAM total size */ -#define SSI_IVPOOL_SIZE 1024 +#define CC_IVPOOL_SIZE 1024 /* The first 32B fraction of pool are dedicated to the * next encryption "key" & "IV" for pool regeneration */ -#define SSI_IVPOOL_META_SIZE (CC_AES_IV_SIZE + AES_KEYSIZE_128) -#define SSI_IVPOOL_GEN_SEQ_LEN 4 +#define CC_IVPOOL_META_SIZE (CC_AES_IV_SIZE + AES_KEYSIZE_128) +#define CC_IVPOOL_GEN_SEQ_LEN 4 /** - * struct ssi_ivgen_ctx -IV pool generation context + * struct cc_ivgen_ctx -IV pool generation context * @pool: the start address of the iv-pool resides in internal RAM * @ctr_key_dma: address of pool's encryption key material in internal RAM * @ctr_iv_dma: address of pool's counter iv in internal RAM @@ -40,31 +25,29 @@ * @pool_meta: virt. address of the initial enc. key/IV * @pool_meta_dma: phys. address of the initial enc. key/IV */ -struct ssi_ivgen_ctx { - ssi_sram_addr_t pool; - ssi_sram_addr_t ctr_key; - ssi_sram_addr_t ctr_iv; +struct cc_ivgen_ctx { + cc_sram_addr_t pool; + cc_sram_addr_t ctr_key; + cc_sram_addr_t ctr_iv; u32 next_iv_ofs; u8 *pool_meta; dma_addr_t pool_meta_dma; }; /*! - * Generates SSI_IVPOOL_SIZE of random bytes by + * Generates CC_IVPOOL_SIZE of random bytes by * encrypting 0's using AES128-CTR. * * \param ivgen iv-pool context * \param iv_seq IN/OUT array to the descriptors sequence * \param iv_seq_len IN/OUT pointer to the sequence length */ -static int ssi_ivgen_generate_pool( - struct ssi_ivgen_ctx *ivgen_ctx, - struct cc_hw_desc iv_seq[], - unsigned int *iv_seq_len) +static int cc_gen_iv_pool(struct cc_ivgen_ctx *ivgen_ctx, + struct cc_hw_desc iv_seq[], unsigned int *iv_seq_len) { unsigned int idx = *iv_seq_len; - if ((*iv_seq_len + SSI_IVPOOL_GEN_SEQ_LEN) > SSI_IVPOOL_SEQ_LEN) { + if ((*iv_seq_len + CC_IVPOOL_GEN_SEQ_LEN) > CC_IVPOOL_SEQ_LEN) { /* The sequence will be longer than allowed */ return -EINVAL; } @@ -97,15 +80,15 @@ static int ssi_ivgen_generate_pool( /* Generate IV pool */ hw_desc_init(&iv_seq[idx]); - set_din_const(&iv_seq[idx], 0, SSI_IVPOOL_SIZE); - set_dout_sram(&iv_seq[idx], ivgen_ctx->pool, SSI_IVPOOL_SIZE); + set_din_const(&iv_seq[idx], 0, CC_IVPOOL_SIZE); + set_dout_sram(&iv_seq[idx], ivgen_ctx->pool, CC_IVPOOL_SIZE); set_flow_mode(&iv_seq[idx], DIN_AES_DOUT); idx++; *iv_seq_len = idx; /* Update sequence length */ /* queue ordering assures pool readiness */ - ivgen_ctx->next_iv_ofs = SSI_IVPOOL_META_SIZE; + ivgen_ctx->next_iv_ofs = CC_IVPOOL_META_SIZE; return 0; } @@ -118,15 +101,15 @@ static int ssi_ivgen_generate_pool( * * \return int Zero for success, negative value otherwise. */ -int ssi_ivgen_init_sram_pool(struct ssi_drvdata *drvdata) +int cc_init_iv_sram(struct cc_drvdata *drvdata) { - struct ssi_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle; - struct cc_hw_desc iv_seq[SSI_IVPOOL_SEQ_LEN]; + struct cc_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle; + struct cc_hw_desc iv_seq[CC_IVPOOL_SEQ_LEN]; unsigned int iv_seq_len = 0; int rc; /* Generate initial enc. key/iv */ - get_random_bytes(ivgen_ctx->pool_meta, SSI_IVPOOL_META_SIZE); + get_random_bytes(ivgen_ctx->pool_meta, CC_IVPOOL_META_SIZE); /* The first 32B reserved for the enc. Key/IV */ ivgen_ctx->ctr_key = ivgen_ctx->pool; @@ -135,15 +118,15 @@ int ssi_ivgen_init_sram_pool(struct ssi_drvdata *drvdata) /* Copy initial enc. key and IV to SRAM at a single descriptor */ hw_desc_init(&iv_seq[iv_seq_len]); set_din_type(&iv_seq[iv_seq_len], DMA_DLLI, ivgen_ctx->pool_meta_dma, - SSI_IVPOOL_META_SIZE, NS_BIT); + CC_IVPOOL_META_SIZE, NS_BIT); set_dout_sram(&iv_seq[iv_seq_len], ivgen_ctx->pool, - SSI_IVPOOL_META_SIZE); + CC_IVPOOL_META_SIZE); set_flow_mode(&iv_seq[iv_seq_len], BYPASS); iv_seq_len++; /* Generate initial pool */ - rc = ssi_ivgen_generate_pool(ivgen_ctx, iv_seq, &iv_seq_len); - if (unlikely(rc != 0)) + rc = cc_gen_iv_pool(ivgen_ctx, iv_seq, &iv_seq_len); + if (rc) return rc; /* Fire-and-forget */ @@ -155,17 +138,17 @@ int ssi_ivgen_init_sram_pool(struct ssi_drvdata *drvdata) * * \param drvdata */ -void ssi_ivgen_fini(struct ssi_drvdata *drvdata) +void cc_ivgen_fini(struct cc_drvdata *drvdata) { - struct ssi_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle; + struct cc_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle; struct device *device = &drvdata->plat_dev->dev; if (!ivgen_ctx) return; if (ivgen_ctx->pool_meta) { - memset(ivgen_ctx->pool_meta, 0, SSI_IVPOOL_META_SIZE); - dma_free_coherent(device, SSI_IVPOOL_META_SIZE, + memset(ivgen_ctx->pool_meta, 0, CC_IVPOOL_META_SIZE); + dma_free_coherent(device, CC_IVPOOL_META_SIZE, ivgen_ctx->pool_meta, ivgen_ctx->pool_meta_dma); } @@ -184,42 +167,41 @@ void ssi_ivgen_fini(struct ssi_drvdata *drvdata) * * \return int Zero for success, negative value otherwise. */ -int ssi_ivgen_init(struct ssi_drvdata *drvdata) +int cc_ivgen_init(struct cc_drvdata *drvdata) { - struct ssi_ivgen_ctx *ivgen_ctx; + struct cc_ivgen_ctx *ivgen_ctx; struct device *device = &drvdata->plat_dev->dev; int rc; /* Allocate "this" context */ - drvdata->ivgen_handle = kzalloc(sizeof(*drvdata->ivgen_handle), - GFP_KERNEL); - if (!drvdata->ivgen_handle) + ivgen_ctx = kzalloc(sizeof(*ivgen_ctx), GFP_KERNEL); + if (!ivgen_ctx) return -ENOMEM; - ivgen_ctx = drvdata->ivgen_handle; + drvdata->ivgen_handle = ivgen_ctx; - /* Allocate pool's header for intial enc. key/IV */ - ivgen_ctx->pool_meta = dma_alloc_coherent(device, SSI_IVPOOL_META_SIZE, + /* Allocate pool's header for initial enc. key/IV */ + ivgen_ctx->pool_meta = dma_alloc_coherent(device, CC_IVPOOL_META_SIZE, &ivgen_ctx->pool_meta_dma, GFP_KERNEL); if (!ivgen_ctx->pool_meta) { dev_err(device, "Not enough memory to allocate DMA of pool_meta (%u B)\n", - SSI_IVPOOL_META_SIZE); + CC_IVPOOL_META_SIZE); rc = -ENOMEM; goto out; } /* Allocate IV pool in SRAM */ - ivgen_ctx->pool = ssi_sram_mgr_alloc(drvdata, SSI_IVPOOL_SIZE); + ivgen_ctx->pool = cc_sram_alloc(drvdata, CC_IVPOOL_SIZE); if (ivgen_ctx->pool == NULL_SRAM_ADDR) { dev_err(device, "SRAM pool exhausted\n"); rc = -ENOMEM; goto out; } - return ssi_ivgen_init_sram_pool(drvdata); + return cc_init_iv_sram(drvdata); out: - ssi_ivgen_fini(drvdata); + cc_ivgen_fini(drvdata); return rc; } @@ -228,37 +210,36 @@ out: * * \param drvdata Driver private context * \param iv_out_dma Array of physical IV out addresses - * \param iv_out_dma_len Length of iv_out_dma array (additional elements of iv_out_dma array are ignore) + * \param iv_out_dma_len Length of iv_out_dma array (additional elements + * of iv_out_dma array are ignore) * \param iv_out_size May be 8 or 16 bytes long * \param iv_seq IN/OUT array to the descriptors sequence * \param iv_seq_len IN/OUT pointer to the sequence length * * \return int Zero for success, negative value otherwise. */ -int ssi_ivgen_getiv( - struct ssi_drvdata *drvdata, - dma_addr_t iv_out_dma[], - unsigned int iv_out_dma_len, - unsigned int iv_out_size, - struct cc_hw_desc iv_seq[], - unsigned int *iv_seq_len) +int cc_get_iv(struct cc_drvdata *drvdata, dma_addr_t iv_out_dma[], + unsigned int iv_out_dma_len, unsigned int iv_out_size, + struct cc_hw_desc iv_seq[], unsigned int *iv_seq_len) { - struct ssi_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle; + struct cc_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle; unsigned int idx = *iv_seq_len; struct device *dev = drvdata_to_dev(drvdata); unsigned int t; - if ((iv_out_size != CC_AES_IV_SIZE) && - (iv_out_size != CTR_RFC3686_IV_SIZE)) { + if (iv_out_size != CC_AES_IV_SIZE && + iv_out_size != CTR_RFC3686_IV_SIZE) { return -EINVAL; } - if ((iv_out_dma_len + 1) > SSI_IVPOOL_SEQ_LEN) { + if ((iv_out_dma_len + 1) > CC_IVPOOL_SEQ_LEN) { /* The sequence will be longer than allowed */ return -EINVAL; } - //check that number of generated IV is limited to max dma address iv buffer size - if (iv_out_dma_len > SSI_MAX_IVGEN_DMA_ADDRESSES) { + /* check that number of generated IV is limited to max dma address + * iv buffer size + */ + if (iv_out_dma_len > CC_MAX_IVGEN_DMA_ADDRESSES) { /* The sequence will be longer than allowed */ return -EINVAL; } @@ -288,10 +269,10 @@ int ssi_ivgen_getiv( /* Update iv index */ ivgen_ctx->next_iv_ofs += iv_out_size; - if ((SSI_IVPOOL_SIZE - ivgen_ctx->next_iv_ofs) < CC_AES_IV_SIZE) { + if ((CC_IVPOOL_SIZE - ivgen_ctx->next_iv_ofs) < CC_AES_IV_SIZE) { dev_dbg(dev, "Pool exhausted, regenerating iv-pool\n"); /* pool is drained -regenerate it! */ - return ssi_ivgen_generate_pool(ivgen_ctx, iv_seq, iv_seq_len); + return cc_gen_iv_pool(ivgen_ctx, iv_seq, iv_seq_len); } return 0; diff --git a/drivers/staging/ccree/cc_ivgen.h b/drivers/staging/ccree/cc_ivgen.h new file mode 100644 index 000000000000..b6ac16903dda --- /dev/null +++ b/drivers/staging/ccree/cc_ivgen.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#ifndef __CC_IVGEN_H__ +#define __CC_IVGEN_H__ + +#include "cc_hw_queue_defs.h" + +#define CC_IVPOOL_SEQ_LEN 8 + +/*! + * Allocates iv-pool and maps resources. + * This function generates the first IV pool. + * + * \param drvdata Driver's private context + * + * \return int Zero for success, negative value otherwise. + */ +int cc_ivgen_init(struct cc_drvdata *drvdata); + +/*! + * Free iv-pool and ivgen context. + * + * \param drvdata + */ +void cc_ivgen_fini(struct cc_drvdata *drvdata); + +/*! + * Generates the initial pool in SRAM. + * This function should be invoked when resuming DX driver. + * + * \param drvdata + * + * \return int Zero for success, negative value otherwise. + */ +int cc_init_iv_sram(struct cc_drvdata *drvdata); + +/*! + * Acquires 16 Bytes IV from the iv-pool + * + * \param drvdata Driver private context + * \param iv_out_dma Array of physical IV out addresses + * \param iv_out_dma_len Length of iv_out_dma array (additional elements of + * iv_out_dma array are ignore) + * \param iv_out_size May be 8 or 16 bytes long + * \param iv_seq IN/OUT array to the descriptors sequence + * \param iv_seq_len IN/OUT pointer to the sequence length + * + * \return int Zero for success, negative value otherwise. + */ +int cc_get_iv(struct cc_drvdata *drvdata, dma_addr_t iv_out_dma[], + unsigned int iv_out_dma_len, unsigned int iv_out_size, + struct cc_hw_desc iv_seq[], unsigned int *iv_seq_len); + +#endif /*__CC_IVGEN_H__*/ diff --git a/drivers/staging/ccree/cc_kernel_regs.h b/drivers/staging/ccree/cc_kernel_regs.h new file mode 100644 index 000000000000..fa994406d610 --- /dev/null +++ b/drivers/staging/ccree/cc_kernel_regs.h @@ -0,0 +1,167 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#ifndef __CC_CRYS_KERNEL_H__ +#define __CC_CRYS_KERNEL_H__ + +// -------------------------------------- +// BLOCK: DSCRPTR +// -------------------------------------- +#define CC_DSCRPTR_COMPLETION_COUNTER_REG_OFFSET 0xE00UL +#define CC_DSCRPTR_COMPLETION_COUNTER_COMPLETION_COUNTER_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_COMPLETION_COUNTER_COMPLETION_COUNTER_BIT_SIZE 0x6UL +#define CC_DSCRPTR_COMPLETION_COUNTER_OVERFLOW_COUNTER_BIT_SHIFT 0x6UL +#define CC_DSCRPTR_COMPLETION_COUNTER_OVERFLOW_COUNTER_BIT_SIZE 0x1UL +#define CC_DSCRPTR_SW_RESET_REG_OFFSET 0xE40UL +#define CC_DSCRPTR_SW_RESET_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_SW_RESET_VALUE_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_REG_OFFSET 0xE60UL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_NUM_OF_DSCRPTR_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_NUM_OF_DSCRPTR_BIT_SIZE 0xAUL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_DSCRPTR_SRAM_SIZE_BIT_SHIFT 0xAUL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_DSCRPTR_SRAM_SIZE_BIT_SIZE 0xCUL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_SRAM_SIZE_BIT_SHIFT 0x16UL +#define CC_DSCRPTR_QUEUE_SRAM_SIZE_SRAM_SIZE_BIT_SIZE 0x3UL +#define CC_DSCRPTR_SINGLE_ADDR_EN_REG_OFFSET 0xE64UL +#define CC_DSCRPTR_SINGLE_ADDR_EN_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_SINGLE_ADDR_EN_VALUE_BIT_SIZE 0x1UL +#define CC_DSCRPTR_MEASURE_CNTR_REG_OFFSET 0xE68UL +#define CC_DSCRPTR_MEASURE_CNTR_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_MEASURE_CNTR_VALUE_BIT_SIZE 0x20UL +#define CC_DSCRPTR_QUEUE_WORD0_REG_OFFSET 0xE80UL +#define CC_DSCRPTR_QUEUE_WORD0_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WORD0_VALUE_BIT_SIZE 0x20UL +#define CC_DSCRPTR_QUEUE_WORD1_REG_OFFSET 0xE84UL +#define CC_DSCRPTR_QUEUE_WORD1_DIN_DMA_MODE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WORD1_DIN_DMA_MODE_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SHIFT 0x2UL +#define CC_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE 0x18UL +#define CC_DSCRPTR_QUEUE_WORD1_NS_BIT_BIT_SHIFT 0x1AUL +#define CC_DSCRPTR_QUEUE_WORD1_NS_BIT_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD1_DIN_CONST_VALUE_BIT_SHIFT 0x1BUL +#define CC_DSCRPTR_QUEUE_WORD1_DIN_CONST_VALUE_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD1_NOT_LAST_BIT_SHIFT 0x1CUL +#define CC_DSCRPTR_QUEUE_WORD1_NOT_LAST_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD1_LOCK_QUEUE_BIT_SHIFT 0x1DUL +#define CC_DSCRPTR_QUEUE_WORD1_LOCK_QUEUE_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD1_NOT_USED_BIT_SHIFT 0x1EUL +#define CC_DSCRPTR_QUEUE_WORD1_NOT_USED_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD2_REG_OFFSET 0xE88UL +#define CC_DSCRPTR_QUEUE_WORD2_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WORD2_VALUE_BIT_SIZE 0x20UL +#define CC_DSCRPTR_QUEUE_WORD3_REG_OFFSET 0xE8CUL +#define CC_DSCRPTR_QUEUE_WORD3_DOUT_DMA_MODE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WORD3_DOUT_DMA_MODE_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD3_DOUT_SIZE_BIT_SHIFT 0x2UL +#define CC_DSCRPTR_QUEUE_WORD3_DOUT_SIZE_BIT_SIZE 0x18UL +#define CC_DSCRPTR_QUEUE_WORD3_NS_BIT_BIT_SHIFT 0x1AUL +#define CC_DSCRPTR_QUEUE_WORD3_NS_BIT_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD3_DOUT_LAST_IND_BIT_SHIFT 0x1BUL +#define CC_DSCRPTR_QUEUE_WORD3_DOUT_LAST_IND_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD3_HASH_XOR_BIT_BIT_SHIFT 0x1DUL +#define CC_DSCRPTR_QUEUE_WORD3_HASH_XOR_BIT_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD3_NOT_USED_BIT_SHIFT 0x1EUL +#define CC_DSCRPTR_QUEUE_WORD3_NOT_USED_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD3_QUEUE_LAST_IND_BIT_SHIFT 0x1FUL +#define CC_DSCRPTR_QUEUE_WORD3_QUEUE_LAST_IND_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_REG_OFFSET 0xE90UL +#define CC_DSCRPTR_QUEUE_WORD4_DATA_FLOW_MODE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WORD4_DATA_FLOW_MODE_BIT_SIZE 0x6UL +#define CC_DSCRPTR_QUEUE_WORD4_AES_SEL_N_HASH_BIT_SHIFT 0x6UL +#define CC_DSCRPTR_QUEUE_WORD4_AES_SEL_N_HASH_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_AES_XOR_CRYPTO_KEY_BIT_SHIFT 0x7UL +#define CC_DSCRPTR_QUEUE_WORD4_AES_XOR_CRYPTO_KEY_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_ACK_NEEDED_BIT_SHIFT 0x8UL +#define CC_DSCRPTR_QUEUE_WORD4_ACK_NEEDED_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_MODE_BIT_SHIFT 0xAUL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_MODE_BIT_SIZE 0x4UL +#define CC_DSCRPTR_QUEUE_WORD4_CMAC_SIZE0_BIT_SHIFT 0xEUL +#define CC_DSCRPTR_QUEUE_WORD4_CMAC_SIZE0_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_DO_BIT_SHIFT 0xFUL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_DO_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_CONF0_BIT_SHIFT 0x11UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_CONF0_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_CONF1_BIT_SHIFT 0x13UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_CONF1_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_CONF2_BIT_SHIFT 0x14UL +#define CC_DSCRPTR_QUEUE_WORD4_CIPHER_CONF2_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD4_KEY_SIZE_BIT_SHIFT 0x16UL +#define CC_DSCRPTR_QUEUE_WORD4_KEY_SIZE_BIT_SIZE 0x2UL +#define CC_DSCRPTR_QUEUE_WORD4_SETUP_OPERATION_BIT_SHIFT 0x18UL +#define CC_DSCRPTR_QUEUE_WORD4_SETUP_OPERATION_BIT_SIZE 0x4UL +#define CC_DSCRPTR_QUEUE_WORD4_DIN_SRAM_ENDIANNESS_BIT_SHIFT 0x1CUL +#define CC_DSCRPTR_QUEUE_WORD4_DIN_SRAM_ENDIANNESS_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_DOUT_SRAM_ENDIANNESS_BIT_SHIFT 0x1DUL +#define CC_DSCRPTR_QUEUE_WORD4_DOUT_SRAM_ENDIANNESS_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_WORD_SWAP_BIT_SHIFT 0x1EUL +#define CC_DSCRPTR_QUEUE_WORD4_WORD_SWAP_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD4_BYTES_SWAP_BIT_SHIFT 0x1FUL +#define CC_DSCRPTR_QUEUE_WORD4_BYTES_SWAP_BIT_SIZE 0x1UL +#define CC_DSCRPTR_QUEUE_WORD5_REG_OFFSET 0xE94UL +#define CC_DSCRPTR_QUEUE_WORD5_DIN_ADDR_HIGH_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WORD5_DIN_ADDR_HIGH_BIT_SIZE 0x10UL +#define CC_DSCRPTR_QUEUE_WORD5_DOUT_ADDR_HIGH_BIT_SHIFT 0x10UL +#define CC_DSCRPTR_QUEUE_WORD5_DOUT_ADDR_HIGH_BIT_SIZE 0x10UL +#define CC_DSCRPTR_QUEUE_WATERMARK_REG_OFFSET 0xE98UL +#define CC_DSCRPTR_QUEUE_WATERMARK_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_WATERMARK_VALUE_BIT_SIZE 0xAUL +#define CC_DSCRPTR_QUEUE_CONTENT_REG_OFFSET 0xE9CUL +#define CC_DSCRPTR_QUEUE_CONTENT_VALUE_BIT_SHIFT 0x0UL +#define CC_DSCRPTR_QUEUE_CONTENT_VALUE_BIT_SIZE 0xAUL +// -------------------------------------- +// BLOCK: AXI_P +// -------------------------------------- +#define CC_AXIM_MON_INFLIGHT_REG_OFFSET 0xB00UL +#define CC_AXIM_MON_INFLIGHT_VALUE_BIT_SHIFT 0x0UL +#define CC_AXIM_MON_INFLIGHT_VALUE_BIT_SIZE 0x8UL +#define CC_AXIM_MON_INFLIGHTLAST_REG_OFFSET 0xB40UL +#define CC_AXIM_MON_INFLIGHTLAST_VALUE_BIT_SHIFT 0x0UL +#define CC_AXIM_MON_INFLIGHTLAST_VALUE_BIT_SIZE 0x8UL +#define CC_AXIM_MON_COMP_REG_OFFSET 0xB80UL +#define CC_AXIM_MON_COMP_VALUE_BIT_SHIFT 0x0UL +#define CC_AXIM_MON_COMP_VALUE_BIT_SIZE 0x10UL +#define CC_AXIM_MON_ERR_REG_OFFSET 0xBC4UL +#define CC_AXIM_MON_ERR_BRESP_BIT_SHIFT 0x0UL +#define CC_AXIM_MON_ERR_BRESP_BIT_SIZE 0x2UL +#define CC_AXIM_MON_ERR_BID_BIT_SHIFT 0x2UL +#define CC_AXIM_MON_ERR_BID_BIT_SIZE 0x4UL +#define CC_AXIM_MON_ERR_RRESP_BIT_SHIFT 0x10UL +#define CC_AXIM_MON_ERR_RRESP_BIT_SIZE 0x2UL +#define CC_AXIM_MON_ERR_RID_BIT_SHIFT 0x12UL +#define CC_AXIM_MON_ERR_RID_BIT_SIZE 0x4UL +#define CC_AXIM_CFG_REG_OFFSET 0xBE8UL +#define CC_AXIM_CFG_BRESPMASK_BIT_SHIFT 0x4UL +#define CC_AXIM_CFG_BRESPMASK_BIT_SIZE 0x1UL +#define CC_AXIM_CFG_RRESPMASK_BIT_SHIFT 0x5UL +#define CC_AXIM_CFG_RRESPMASK_BIT_SIZE 0x1UL +#define CC_AXIM_CFG_INFLTMASK_BIT_SHIFT 0x6UL +#define CC_AXIM_CFG_INFLTMASK_BIT_SIZE 0x1UL +#define CC_AXIM_CFG_COMPMASK_BIT_SHIFT 0x7UL +#define CC_AXIM_CFG_COMPMASK_BIT_SIZE 0x1UL +#define CC_AXIM_ACE_CONST_REG_OFFSET 0xBECUL +#define CC_AXIM_ACE_CONST_ARDOMAIN_BIT_SHIFT 0x0UL +#define CC_AXIM_ACE_CONST_ARDOMAIN_BIT_SIZE 0x2UL +#define CC_AXIM_ACE_CONST_AWDOMAIN_BIT_SHIFT 0x2UL +#define CC_AXIM_ACE_CONST_AWDOMAIN_BIT_SIZE 0x2UL +#define CC_AXIM_ACE_CONST_ARBAR_BIT_SHIFT 0x4UL +#define CC_AXIM_ACE_CONST_ARBAR_BIT_SIZE 0x2UL +#define CC_AXIM_ACE_CONST_AWBAR_BIT_SHIFT 0x6UL +#define CC_AXIM_ACE_CONST_AWBAR_BIT_SIZE 0x2UL +#define CC_AXIM_ACE_CONST_ARSNOOP_BIT_SHIFT 0x8UL +#define CC_AXIM_ACE_CONST_ARSNOOP_BIT_SIZE 0x4UL +#define CC_AXIM_ACE_CONST_AWSNOOP_NOT_ALIGNED_BIT_SHIFT 0xCUL +#define CC_AXIM_ACE_CONST_AWSNOOP_NOT_ALIGNED_BIT_SIZE 0x3UL +#define CC_AXIM_ACE_CONST_AWSNOOP_ALIGNED_BIT_SHIFT 0xFUL +#define CC_AXIM_ACE_CONST_AWSNOOP_ALIGNED_BIT_SIZE 0x3UL +#define CC_AXIM_ACE_CONST_AWADDR_NOT_MASKED_BIT_SHIFT 0x12UL +#define CC_AXIM_ACE_CONST_AWADDR_NOT_MASKED_BIT_SIZE 0x7UL +#define CC_AXIM_ACE_CONST_AWLEN_VAL_BIT_SHIFT 0x19UL +#define CC_AXIM_ACE_CONST_AWLEN_VAL_BIT_SIZE 0x4UL +#define CC_AXIM_CACHE_PARAMS_REG_OFFSET 0xBF0UL +#define CC_AXIM_CACHE_PARAMS_AWCACHE_LAST_BIT_SHIFT 0x0UL +#define CC_AXIM_CACHE_PARAMS_AWCACHE_LAST_BIT_SIZE 0x4UL +#define CC_AXIM_CACHE_PARAMS_AWCACHE_BIT_SHIFT 0x4UL +#define CC_AXIM_CACHE_PARAMS_AWCACHE_BIT_SIZE 0x4UL +#define CC_AXIM_CACHE_PARAMS_ARCACHE_BIT_SHIFT 0x8UL +#define CC_AXIM_CACHE_PARAMS_ARCACHE_BIT_SIZE 0x4UL +#endif // __CC_CRYS_KERNEL_H__ diff --git a/drivers/staging/ccree/cc_lli_defs.h b/drivers/staging/ccree/cc_lli_defs.h index a9c417b07b04..64b15ac9f1d3 100644 --- a/drivers/staging/ccree/cc_lli_defs.h +++ b/drivers/staging/ccree/cc_lli_defs.h @@ -1,18 +1,5 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ #ifndef _CC_LLI_DEFS_H_ #define _CC_LLI_DEFS_H_ @@ -20,7 +7,7 @@ #include <linux/types.h> /* Max DLLI size - * AKA DX_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE + * AKA CC_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE */ #define DLLI_SIZE_BIT_SIZE 0x18 diff --git a/drivers/staging/ccree/cc_pm.c b/drivers/staging/ccree/cc_pm.c new file mode 100644 index 000000000000..d990f472e89f --- /dev/null +++ b/drivers/staging/ccree/cc_pm.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#include <linux/kernel.h> +#include <linux/interrupt.h> +#include <linux/pm_runtime.h> +#include "cc_driver.h" +#include "cc_buffer_mgr.h" +#include "cc_request_mgr.h" +#include "cc_sram_mgr.h" +#include "cc_ivgen.h" +#include "cc_hash.h" +#include "cc_pm.h" + +#define POWER_DOWN_ENABLE 0x01 +#define POWER_DOWN_DISABLE 0x00 + +const struct dev_pm_ops ccree_pm = { + SET_RUNTIME_PM_OPS(cc_pm_suspend, cc_pm_resume, NULL) +}; + +int cc_pm_suspend(struct device *dev) +{ + struct cc_drvdata *drvdata = dev_get_drvdata(dev); + int rc; + + dev_dbg(dev, "set HOST_POWER_DOWN_EN\n"); + cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); + rc = cc_suspend_req_queue(drvdata); + if (rc) { + dev_err(dev, "cc_suspend_req_queue (%x)\n", rc); + return rc; + } + fini_cc_regs(drvdata); + cc_clk_off(drvdata); + return 0; +} + +int cc_pm_resume(struct device *dev) +{ + int rc; + struct cc_drvdata *drvdata = dev_get_drvdata(dev); + + dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n"); + cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE); + + rc = cc_clk_on(drvdata); + if (rc) { + dev_err(dev, "failed getting clock back on. We're toast.\n"); + return rc; + } + + rc = init_cc_regs(drvdata, false); + if (rc) { + dev_err(dev, "init_cc_regs (%x)\n", rc); + return rc; + } + + rc = cc_resume_req_queue(drvdata); + if (rc) { + dev_err(dev, "cc_resume_req_queue (%x)\n", rc); + return rc; + } + + /* must be after the queue resuming as it uses the HW queue*/ + cc_init_hash_sram(drvdata); + + cc_init_iv_sram(drvdata); + return 0; +} + +int cc_pm_get(struct device *dev) +{ + int rc = 0; + struct cc_drvdata *drvdata = dev_get_drvdata(dev); + + if (cc_req_queue_suspended(drvdata)) + rc = pm_runtime_get_sync(dev); + else + pm_runtime_get_noresume(dev); + + return rc; +} + +int cc_pm_put_suspend(struct device *dev) +{ + int rc = 0; + struct cc_drvdata *drvdata = dev_get_drvdata(dev); + + if (!cc_req_queue_suspended(drvdata)) { + pm_runtime_mark_last_busy(dev); + rc = pm_runtime_put_autosuspend(dev); + } else { + /* Something wrong happens*/ + dev_err(dev, "request to suspend already suspended queue"); + rc = -EBUSY; + } + return rc; +} + +int cc_pm_init(struct cc_drvdata *drvdata) +{ + int rc = 0; + struct device *dev = drvdata_to_dev(drvdata); + + /* must be before the enabling to avoid resdundent suspending */ + pm_runtime_set_autosuspend_delay(dev, CC_SUSPEND_TIMEOUT); + pm_runtime_use_autosuspend(dev); + /* activate the PM module */ + rc = pm_runtime_set_active(dev); + if (rc) + return rc; + /* enable the PM module*/ + pm_runtime_enable(dev); + + return rc; +} + +void cc_pm_fini(struct cc_drvdata *drvdata) +{ + pm_runtime_disable(drvdata_to_dev(drvdata)); +} diff --git a/drivers/staging/ccree/cc_pm.h b/drivers/staging/ccree/cc_pm.h new file mode 100644 index 000000000000..aac8190fea38 --- /dev/null +++ b/drivers/staging/ccree/cc_pm.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_pm.h + */ + +#ifndef __CC_POWER_MGR_H__ +#define __CC_POWER_MGR_H__ + +#include "cc_driver.h" + +#define CC_SUSPEND_TIMEOUT 3000 + +#if defined(CONFIG_PM) + +extern const struct dev_pm_ops ccree_pm; + +int cc_pm_init(struct cc_drvdata *drvdata); +void cc_pm_fini(struct cc_drvdata *drvdata); +int cc_pm_suspend(struct device *dev); +int cc_pm_resume(struct device *dev); +int cc_pm_get(struct device *dev); +int cc_pm_put_suspend(struct device *dev); + +#else + +static inline int cc_pm_init(struct cc_drvdata *drvdata) +{ + return 0; +} + +static inline void cc_pm_fini(struct cc_drvdata *drvdata) {} + +static inline int cc_pm_suspend(struct device *dev) +{ + return 0; +} + +static inline int cc_pm_resume(struct device *dev) +{ + return 0; +} + +static inline int cc_pm_get(struct device *dev) +{ + return 0; +} + +static inline int cc_pm_put_suspend(struct device *dev) +{ + return 0; +} + +#endif + +#endif /*__POWER_MGR_H__*/ + diff --git a/drivers/staging/ccree/cc_request_mgr.c b/drivers/staging/ccree/cc_request_mgr.c new file mode 100644 index 000000000000..8a7f83407410 --- /dev/null +++ b/drivers/staging/ccree/cc_request_mgr.c @@ -0,0 +1,713 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#include <linux/kernel.h> +#include "cc_driver.h" +#include "cc_buffer_mgr.h" +#include "cc_request_mgr.h" +#include "cc_ivgen.h" +#include "cc_pm.h" + +#define CC_MAX_POLL_ITER 10 +/* The highest descriptor count in used */ +#define CC_MAX_DESC_SEQ_LEN 23 + +struct cc_req_mgr_handle { + /* Request manager resources */ + unsigned int hw_queue_size; /* HW capability */ + unsigned int min_free_hw_slots; + unsigned int max_used_sw_slots; + struct cc_crypto_req req_queue[MAX_REQUEST_QUEUE_SIZE]; + u32 req_queue_head; + u32 req_queue_tail; + u32 axi_completed; + u32 q_free_slots; + /* This lock protects access to HW register + * that must be single request at a time + */ + spinlock_t hw_lock; + struct cc_hw_desc compl_desc; + u8 *dummy_comp_buff; + dma_addr_t dummy_comp_buff_dma; + + /* backlog queue */ + struct list_head backlog; + unsigned int bl_len; + spinlock_t bl_lock; /* protect backlog queue */ + +#ifdef COMP_IN_WQ + struct workqueue_struct *workq; + struct delayed_work compwork; +#else + struct tasklet_struct comptask; +#endif + bool is_runtime_suspended; +}; + +struct cc_bl_item { + struct cc_crypto_req creq; + struct cc_hw_desc desc[CC_MAX_DESC_SEQ_LEN]; + unsigned int len; + struct list_head list; + bool notif; +}; + +static void comp_handler(unsigned long devarg); +#ifdef COMP_IN_WQ +static void comp_work_handler(struct work_struct *work); +#endif + +void cc_req_mgr_fini(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *req_mgr_h = drvdata->request_mgr_handle; + struct device *dev = drvdata_to_dev(drvdata); + + if (!req_mgr_h) + return; /* Not allocated */ + + if (req_mgr_h->dummy_comp_buff_dma) { + dma_free_coherent(dev, sizeof(u32), req_mgr_h->dummy_comp_buff, + req_mgr_h->dummy_comp_buff_dma); + } + + dev_dbg(dev, "max_used_hw_slots=%d\n", (req_mgr_h->hw_queue_size - + req_mgr_h->min_free_hw_slots)); + dev_dbg(dev, "max_used_sw_slots=%d\n", req_mgr_h->max_used_sw_slots); + +#ifdef COMP_IN_WQ + flush_workqueue(req_mgr_h->workq); + destroy_workqueue(req_mgr_h->workq); +#else + /* Kill tasklet */ + tasklet_kill(&req_mgr_h->comptask); +#endif + memset(req_mgr_h, 0, sizeof(struct cc_req_mgr_handle)); + kfree(req_mgr_h); + drvdata->request_mgr_handle = NULL; +} + +int cc_req_mgr_init(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *req_mgr_h; + struct device *dev = drvdata_to_dev(drvdata); + int rc = 0; + + req_mgr_h = kzalloc(sizeof(*req_mgr_h), GFP_KERNEL); + if (!req_mgr_h) { + rc = -ENOMEM; + goto req_mgr_init_err; + } + + drvdata->request_mgr_handle = req_mgr_h; + + spin_lock_init(&req_mgr_h->hw_lock); + spin_lock_init(&req_mgr_h->bl_lock); + INIT_LIST_HEAD(&req_mgr_h->backlog); + +#ifdef COMP_IN_WQ + dev_dbg(dev, "Initializing completion workqueue\n"); + req_mgr_h->workq = create_singlethread_workqueue("arm_cc7x_wq"); + if (!req_mgr_h->workq) { + dev_err(dev, "Failed creating work queue\n"); + rc = -ENOMEM; + goto req_mgr_init_err; + } + INIT_DELAYED_WORK(&req_mgr_h->compwork, comp_work_handler); +#else + dev_dbg(dev, "Initializing completion tasklet\n"); + tasklet_init(&req_mgr_h->comptask, comp_handler, + (unsigned long)drvdata); +#endif + req_mgr_h->hw_queue_size = cc_ioread(drvdata, + CC_REG(DSCRPTR_QUEUE_SRAM_SIZE)); + dev_dbg(dev, "hw_queue_size=0x%08X\n", req_mgr_h->hw_queue_size); + if (req_mgr_h->hw_queue_size < MIN_HW_QUEUE_SIZE) { + dev_err(dev, "Invalid HW queue size = %u (Min. required is %u)\n", + req_mgr_h->hw_queue_size, MIN_HW_QUEUE_SIZE); + rc = -ENOMEM; + goto req_mgr_init_err; + } + req_mgr_h->min_free_hw_slots = req_mgr_h->hw_queue_size; + req_mgr_h->max_used_sw_slots = 0; + + /* Allocate DMA word for "dummy" completion descriptor use */ + req_mgr_h->dummy_comp_buff = + dma_alloc_coherent(dev, sizeof(u32), + &req_mgr_h->dummy_comp_buff_dma, + GFP_KERNEL); + if (!req_mgr_h->dummy_comp_buff) { + dev_err(dev, "Not enough memory to allocate DMA (%zu) dropped buffer\n", + sizeof(u32)); + rc = -ENOMEM; + goto req_mgr_init_err; + } + + /* Init. "dummy" completion descriptor */ + hw_desc_init(&req_mgr_h->compl_desc); + set_din_const(&req_mgr_h->compl_desc, 0, sizeof(u32)); + set_dout_dlli(&req_mgr_h->compl_desc, req_mgr_h->dummy_comp_buff_dma, + sizeof(u32), NS_BIT, 1); + set_flow_mode(&req_mgr_h->compl_desc, BYPASS); + set_queue_last_ind(&req_mgr_h->compl_desc); + + return 0; + +req_mgr_init_err: + cc_req_mgr_fini(drvdata); + return rc; +} + +static void enqueue_seq(struct cc_drvdata *drvdata, struct cc_hw_desc seq[], + unsigned int seq_len) +{ + int i, w; + void __iomem *reg = drvdata->cc_base + CC_REG(DSCRPTR_QUEUE_WORD0); + struct device *dev = drvdata_to_dev(drvdata); + + /* + * We do indeed write all 6 command words to the same + * register. The HW supports this. + */ + + for (i = 0; i < seq_len; i++) { + for (w = 0; w <= 5; w++) + writel_relaxed(seq[i].word[w], reg); + + if (cc_dump_desc) + dev_dbg(dev, "desc[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X\n", + i, seq[i].word[0], seq[i].word[1], + seq[i].word[2], seq[i].word[3], + seq[i].word[4], seq[i].word[5]); + } +} + +/*! + * Completion will take place if and only if user requested completion + * by cc_send_sync_request(). + * + * \param dev + * \param dx_compl_h The completion event to signal + */ +static void request_mgr_complete(struct device *dev, void *dx_compl_h, + int dummy) +{ + struct completion *this_compl = dx_compl_h; + + complete(this_compl); +} + +static int cc_queues_status(struct cc_drvdata *drvdata, + struct cc_req_mgr_handle *req_mgr_h, + unsigned int total_seq_len) +{ + unsigned long poll_queue; + struct device *dev = drvdata_to_dev(drvdata); + + /* SW queue is checked only once as it will not + * be chaned during the poll because the spinlock_bh + * is held by the thread + */ + if (((req_mgr_h->req_queue_head + 1) & (MAX_REQUEST_QUEUE_SIZE - 1)) == + req_mgr_h->req_queue_tail) { + dev_err(dev, "SW FIFO is full. req_queue_head=%d sw_fifo_len=%d\n", + req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE); + return -ENOSPC; + } + + if (req_mgr_h->q_free_slots >= total_seq_len) + return 0; + + /* Wait for space in HW queue. Poll constant num of iterations. */ + for (poll_queue = 0; poll_queue < CC_MAX_POLL_ITER ; poll_queue++) { + req_mgr_h->q_free_slots = + cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT)); + if (req_mgr_h->q_free_slots < req_mgr_h->min_free_hw_slots) + req_mgr_h->min_free_hw_slots = req_mgr_h->q_free_slots; + + if (req_mgr_h->q_free_slots >= total_seq_len) { + /* If there is enough place return */ + return 0; + } + + dev_dbg(dev, "HW FIFO is full. q_free_slots=%d total_seq_len=%d\n", + req_mgr_h->q_free_slots, total_seq_len); + } + /* No room in the HW queue try again later */ + dev_dbg(dev, "HW FIFO full, timeout. req_queue_head=%d sw_fifo_len=%d q_free_slots=%d total_seq_len=%d\n", + req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE, + req_mgr_h->q_free_slots, total_seq_len); + return -ENOSPC; +} + +/*! + * Enqueue caller request to crypto hardware. + * Need to be called with HW lock held and PM running + * + * \param drvdata + * \param cc_req The request to enqueue + * \param desc The crypto sequence + * \param len The crypto sequence length + * \param add_comp If "true": add an artificial dout DMA to mark completion + * + * \return int Returns -EINPROGRESS or error code + */ +static int cc_do_send_request(struct cc_drvdata *drvdata, + struct cc_crypto_req *cc_req, + struct cc_hw_desc *desc, unsigned int len, + bool add_comp, bool ivgen) +{ + struct cc_req_mgr_handle *req_mgr_h = drvdata->request_mgr_handle; + unsigned int used_sw_slots; + unsigned int iv_seq_len = 0; + unsigned int total_seq_len = len; /*initial sequence length*/ + struct cc_hw_desc iv_seq[CC_IVPOOL_SEQ_LEN]; + struct device *dev = drvdata_to_dev(drvdata); + int rc; + + if (ivgen) { + dev_dbg(dev, "Acquire IV from pool into %d DMA addresses %pad, %pad, %pad, IV-size=%u\n", + cc_req->ivgen_dma_addr_len, + &cc_req->ivgen_dma_addr[0], + &cc_req->ivgen_dma_addr[1], + &cc_req->ivgen_dma_addr[2], + cc_req->ivgen_size); + + /* Acquire IV from pool */ + rc = cc_get_iv(drvdata, cc_req->ivgen_dma_addr, + cc_req->ivgen_dma_addr_len, + cc_req->ivgen_size, iv_seq, &iv_seq_len); + + if (rc) { + dev_err(dev, "Failed to generate IV (rc=%d)\n", rc); + return rc; + } + + total_seq_len += iv_seq_len; + } + + used_sw_slots = ((req_mgr_h->req_queue_head - + req_mgr_h->req_queue_tail) & + (MAX_REQUEST_QUEUE_SIZE - 1)); + if (used_sw_slots > req_mgr_h->max_used_sw_slots) + req_mgr_h->max_used_sw_slots = used_sw_slots; + + /* Enqueue request - must be locked with HW lock*/ + req_mgr_h->req_queue[req_mgr_h->req_queue_head] = *cc_req; + req_mgr_h->req_queue_head = (req_mgr_h->req_queue_head + 1) & + (MAX_REQUEST_QUEUE_SIZE - 1); + /* TODO: Use circ_buf.h ? */ + + dev_dbg(dev, "Enqueue request head=%u\n", req_mgr_h->req_queue_head); + + /* + * We are about to push command to the HW via the command registers + * that may refernece hsot memory. We need to issue a memory barrier + * to make sure there are no outstnading memory writes + */ + wmb(); + + /* STAT_PHASE_4: Push sequence */ + if (ivgen) + enqueue_seq(drvdata, iv_seq, iv_seq_len); + + enqueue_seq(drvdata, desc, len); + + if (add_comp) { + enqueue_seq(drvdata, &req_mgr_h->compl_desc, 1); + total_seq_len++; + } + + if (req_mgr_h->q_free_slots < total_seq_len) { + /* This situation should never occur. Maybe indicating problem + * with resuming power. Set the free slot count to 0 and hope + * for the best. + */ + dev_err(dev, "HW free slot count mismatch."); + req_mgr_h->q_free_slots = 0; + } else { + /* Update the free slots in HW queue */ + req_mgr_h->q_free_slots -= total_seq_len; + } + + /* Operation still in process */ + return -EINPROGRESS; +} + +static void cc_enqueue_backlog(struct cc_drvdata *drvdata, + struct cc_bl_item *bli) +{ + struct cc_req_mgr_handle *mgr = drvdata->request_mgr_handle; + + spin_lock_bh(&mgr->bl_lock); + list_add_tail(&bli->list, &mgr->backlog); + ++mgr->bl_len; + spin_unlock_bh(&mgr->bl_lock); + tasklet_schedule(&mgr->comptask); +} + +static void cc_proc_backlog(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *mgr = drvdata->request_mgr_handle; + struct cc_bl_item *bli; + struct cc_crypto_req *creq; + struct crypto_async_request *req; + bool ivgen; + unsigned int total_len; + struct device *dev = drvdata_to_dev(drvdata); + int rc; + + spin_lock(&mgr->bl_lock); + + while (mgr->bl_len) { + bli = list_first_entry(&mgr->backlog, struct cc_bl_item, list); + spin_unlock(&mgr->bl_lock); + + creq = &bli->creq; + req = (struct crypto_async_request *)creq->user_arg; + + /* + * Notify the request we're moving out of the backlog + * but only if we haven't done so already. + */ + if (!bli->notif) { + req->complete(req, -EINPROGRESS); + bli->notif = true; + } + + ivgen = !!creq->ivgen_dma_addr_len; + total_len = bli->len + (ivgen ? CC_IVPOOL_SEQ_LEN : 0); + + spin_lock(&mgr->hw_lock); + + rc = cc_queues_status(drvdata, mgr, total_len); + if (rc) { + /* + * There is still not room in the FIFO for + * this request. Bail out. We'll return here + * on the next completion irq. + */ + spin_unlock(&mgr->hw_lock); + return; + } + + rc = cc_do_send_request(drvdata, &bli->creq, bli->desc, + bli->len, false, ivgen); + + spin_unlock(&mgr->hw_lock); + + if (rc != -EINPROGRESS) { + cc_pm_put_suspend(dev); + creq->user_cb(dev, req, rc); + } + + /* Remove ourselves from the backlog list */ + spin_lock(&mgr->bl_lock); + list_del(&bli->list); + --mgr->bl_len; + } + + spin_unlock(&mgr->bl_lock); +} + +int cc_send_request(struct cc_drvdata *drvdata, struct cc_crypto_req *cc_req, + struct cc_hw_desc *desc, unsigned int len, + struct crypto_async_request *req) +{ + int rc; + struct cc_req_mgr_handle *mgr = drvdata->request_mgr_handle; + bool ivgen = !!cc_req->ivgen_dma_addr_len; + unsigned int total_len = len + (ivgen ? CC_IVPOOL_SEQ_LEN : 0); + struct device *dev = drvdata_to_dev(drvdata); + bool backlog_ok = req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG; + gfp_t flags = cc_gfp_flags(req); + struct cc_bl_item *bli; + + rc = cc_pm_get(dev); + if (rc) { + dev_err(dev, "ssi_power_mgr_runtime_get returned %x\n", rc); + return rc; + } + + spin_lock_bh(&mgr->hw_lock); + rc = cc_queues_status(drvdata, mgr, total_len); + +#ifdef CC_DEBUG_FORCE_BACKLOG + if (backlog_ok) + rc = -ENOSPC; +#endif /* CC_DEBUG_FORCE_BACKLOG */ + + if (rc == -ENOSPC && backlog_ok) { + spin_unlock_bh(&mgr->hw_lock); + + bli = kmalloc(sizeof(*bli), flags); + if (!bli) { + cc_pm_put_suspend(dev); + return -ENOMEM; + } + + memcpy(&bli->creq, cc_req, sizeof(*cc_req)); + memcpy(&bli->desc, desc, len * sizeof(*desc)); + bli->len = len; + bli->notif = false; + cc_enqueue_backlog(drvdata, bli); + return -EBUSY; + } + + if (!rc) + rc = cc_do_send_request(drvdata, cc_req, desc, len, false, + ivgen); + + spin_unlock_bh(&mgr->hw_lock); + return rc; +} + +int cc_send_sync_request(struct cc_drvdata *drvdata, + struct cc_crypto_req *cc_req, struct cc_hw_desc *desc, + unsigned int len) +{ + int rc; + struct device *dev = drvdata_to_dev(drvdata); + struct cc_req_mgr_handle *mgr = drvdata->request_mgr_handle; + + init_completion(&cc_req->seq_compl); + cc_req->user_cb = request_mgr_complete; + cc_req->user_arg = &cc_req->seq_compl; + + rc = cc_pm_get(dev); + if (rc) { + dev_err(dev, "ssi_power_mgr_runtime_get returned %x\n", rc); + return rc; + } + + while (true) { + spin_lock_bh(&mgr->hw_lock); + rc = cc_queues_status(drvdata, mgr, len + 1); + + if (!rc) + break; + + spin_unlock_bh(&mgr->hw_lock); + if (rc != -EAGAIN) { + cc_pm_put_suspend(dev); + return rc; + } + wait_for_completion_interruptible(&drvdata->hw_queue_avail); + reinit_completion(&drvdata->hw_queue_avail); + } + + rc = cc_do_send_request(drvdata, cc_req, desc, len, true, false); + spin_unlock_bh(&mgr->hw_lock); + + if (rc != -EINPROGRESS) { + cc_pm_put_suspend(dev); + return rc; + } + + wait_for_completion(&cc_req->seq_compl); + return 0; +} + +/*! + * Enqueue caller request to crypto hardware during init process. + * assume this function is not called in middle of a flow, + * since we set QUEUE_LAST_IND flag in the last descriptor. + * + * \param drvdata + * \param desc The crypto sequence + * \param len The crypto sequence length + * + * \return int Returns "0" upon success + */ +int send_request_init(struct cc_drvdata *drvdata, struct cc_hw_desc *desc, + unsigned int len) +{ + struct cc_req_mgr_handle *req_mgr_h = drvdata->request_mgr_handle; + unsigned int total_seq_len = len; /*initial sequence length*/ + int rc = 0; + + /* Wait for space in HW and SW FIFO. Poll for as much as FIFO_TIMEOUT. + */ + rc = cc_queues_status(drvdata, req_mgr_h, total_seq_len); + if (rc) + return rc; + + set_queue_last_ind(&desc[(len - 1)]); + + /* + * We are about to push command to the HW via the command registers + * that may refernece hsot memory. We need to issue a memory barrier + * to make sure there are no outstnading memory writes + */ + wmb(); + enqueue_seq(drvdata, desc, len); + + /* Update the free slots in HW queue */ + req_mgr_h->q_free_slots = + cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT)); + + return 0; +} + +void complete_request(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *request_mgr_handle = + drvdata->request_mgr_handle; + + complete(&drvdata->hw_queue_avail); +#ifdef COMP_IN_WQ + queue_delayed_work(request_mgr_handle->workq, + &request_mgr_handle->compwork, 0); +#else + tasklet_schedule(&request_mgr_handle->comptask); +#endif +} + +#ifdef COMP_IN_WQ +static void comp_work_handler(struct work_struct *work) +{ + struct cc_drvdata *drvdata = + container_of(work, struct cc_drvdata, compwork.work); + + comp_handler((unsigned long)drvdata); +} +#endif + +static void proc_completions(struct cc_drvdata *drvdata) +{ + struct cc_crypto_req *cc_req; + struct device *dev = drvdata_to_dev(drvdata); + struct cc_req_mgr_handle *request_mgr_handle = + drvdata->request_mgr_handle; + unsigned int *tail = &request_mgr_handle->req_queue_tail; + unsigned int *head = &request_mgr_handle->req_queue_head; + + while (request_mgr_handle->axi_completed) { + request_mgr_handle->axi_completed--; + + /* Dequeue request */ + if (*head == *tail) { + /* We are supposed to handle a completion but our + * queue is empty. This is not normal. Return and + * hope for the best. + */ + dev_err(dev, "Request queue is empty head == tail %u\n", + *head); + break; + } + + cc_req = &request_mgr_handle->req_queue[*tail]; + + if (cc_req->user_cb) + cc_req->user_cb(dev, cc_req->user_arg, 0); + *tail = (*tail + 1) & (MAX_REQUEST_QUEUE_SIZE - 1); + dev_dbg(dev, "Dequeue request tail=%u\n", *tail); + dev_dbg(dev, "Request completed. axi_completed=%d\n", + request_mgr_handle->axi_completed); + cc_pm_put_suspend(dev); + } +} + +static inline u32 cc_axi_comp_count(struct cc_drvdata *drvdata) +{ + return FIELD_GET(AXIM_MON_COMP_VALUE, + cc_ioread(drvdata, CC_REG(AXIM_MON_COMP))); +} + +/* Deferred service handler, run as interrupt-fired tasklet */ +static void comp_handler(unsigned long devarg) +{ + struct cc_drvdata *drvdata = (struct cc_drvdata *)devarg; + struct cc_req_mgr_handle *request_mgr_handle = + drvdata->request_mgr_handle; + + u32 irq; + + irq = (drvdata->irq & CC_COMP_IRQ_MASK); + + if (irq & CC_COMP_IRQ_MASK) { + /* To avoid the interrupt from firing as we unmask it, + * we clear it now + */ + cc_iowrite(drvdata, CC_REG(HOST_ICR), CC_COMP_IRQ_MASK); + + /* Avoid race with above clear: Test completion counter + * once more + */ + request_mgr_handle->axi_completed += + cc_axi_comp_count(drvdata); + + while (request_mgr_handle->axi_completed) { + do { + proc_completions(drvdata); + /* At this point (after proc_completions()), + * request_mgr_handle->axi_completed is 0. + */ + request_mgr_handle->axi_completed = + cc_axi_comp_count(drvdata); + } while (request_mgr_handle->axi_completed > 0); + + cc_iowrite(drvdata, CC_REG(HOST_ICR), + CC_COMP_IRQ_MASK); + + request_mgr_handle->axi_completed += + cc_axi_comp_count(drvdata); + } + } + /* after verifing that there is nothing to do, + * unmask AXI completion interrupt + */ + cc_iowrite(drvdata, CC_REG(HOST_IMR), + cc_ioread(drvdata, CC_REG(HOST_IMR)) & ~irq); + + cc_proc_backlog(drvdata); +} + +/* + * resume the queue configuration - no need to take the lock as this happens + * inside the spin lock protection + */ +#if defined(CONFIG_PM) +int cc_resume_req_queue(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *request_mgr_handle = + drvdata->request_mgr_handle; + + spin_lock_bh(&request_mgr_handle->hw_lock); + request_mgr_handle->is_runtime_suspended = false; + spin_unlock_bh(&request_mgr_handle->hw_lock); + + return 0; +} + +/* + * suspend the queue configuration. Since it is used for the runtime suspend + * only verify that the queue can be suspended. + */ +int cc_suspend_req_queue(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *request_mgr_handle = + drvdata->request_mgr_handle; + + /* lock the send_request */ + spin_lock_bh(&request_mgr_handle->hw_lock); + if (request_mgr_handle->req_queue_head != + request_mgr_handle->req_queue_tail) { + spin_unlock_bh(&request_mgr_handle->hw_lock); + return -EBUSY; + } + request_mgr_handle->is_runtime_suspended = true; + spin_unlock_bh(&request_mgr_handle->hw_lock); + + return 0; +} + +bool cc_req_queue_suspended(struct cc_drvdata *drvdata) +{ + struct cc_req_mgr_handle *request_mgr_handle = + drvdata->request_mgr_handle; + + return request_mgr_handle->is_runtime_suspended; +} + +#endif + diff --git a/drivers/staging/ccree/cc_request_mgr.h b/drivers/staging/ccree/cc_request_mgr.h new file mode 100644 index 000000000000..573cb97af085 --- /dev/null +++ b/drivers/staging/ccree/cc_request_mgr.h @@ -0,0 +1,51 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +/* \file cc_request_mgr.h + * Request Manager + */ + +#ifndef __REQUEST_MGR_H__ +#define __REQUEST_MGR_H__ + +#include "cc_hw_queue_defs.h" + +int cc_req_mgr_init(struct cc_drvdata *drvdata); + +/*! + * Enqueue caller request to crypto hardware. + * + * \param drvdata + * \param cc_req The request to enqueue + * \param desc The crypto sequence + * \param len The crypto sequence length + * \param is_dout If "true": completion is handled by the caller + * If "false": this function adds a dummy descriptor completion + * and waits upon completion signal. + * + * \return int Returns -EINPROGRESS or error + */ +int cc_send_request(struct cc_drvdata *drvdata, struct cc_crypto_req *cc_req, + struct cc_hw_desc *desc, unsigned int len, + struct crypto_async_request *req); + +int cc_send_sync_request(struct cc_drvdata *drvdata, + struct cc_crypto_req *cc_req, struct cc_hw_desc *desc, + unsigned int len); + +int send_request_init(struct cc_drvdata *drvdata, struct cc_hw_desc *desc, + unsigned int len); + +void complete_request(struct cc_drvdata *drvdata); + +void cc_req_mgr_fini(struct cc_drvdata *drvdata); + +#if defined(CONFIG_PM) +int cc_resume_req_queue(struct cc_drvdata *drvdata); + +int cc_suspend_req_queue(struct cc_drvdata *drvdata); + +bool cc_req_queue_suspended(struct cc_drvdata *drvdata); +#endif + +#endif /*__REQUEST_MGR_H__*/ diff --git a/drivers/staging/ccree/ssi_sram_mgr.c b/drivers/staging/ccree/cc_sram_mgr.c index 07260d168c91..d1f8a9cc1c0f 100644 --- a/drivers/staging/ccree/ssi_sram_mgr.c +++ b/drivers/staging/ccree/cc_sram_mgr.c @@ -1,62 +1,47 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ -#include "ssi_driver.h" -#include "ssi_sram_mgr.h" +#include "cc_driver.h" +#include "cc_sram_mgr.h" /** - * struct ssi_sram_mgr_ctx -Internal RAM context manager + * struct cc_sram_ctx -Internal RAM context manager * @sram_free_offset: the offset to the non-allocated area */ -struct ssi_sram_mgr_ctx { - ssi_sram_addr_t sram_free_offset; +struct cc_sram_ctx { + cc_sram_addr_t sram_free_offset; }; /** - * ssi_sram_mgr_fini() - Cleanup SRAM pool. + * cc_sram_mgr_fini() - Cleanup SRAM pool. * * @drvdata: Associated device driver context */ -void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata) +void cc_sram_mgr_fini(struct cc_drvdata *drvdata) { - struct ssi_sram_mgr_ctx *smgr_ctx = drvdata->sram_mgr_handle; - /* Free "this" context */ - if (smgr_ctx) { - memset(smgr_ctx, 0, sizeof(struct ssi_sram_mgr_ctx)); - kfree(smgr_ctx); - } + kfree(drvdata->sram_mgr_handle); } /** - * ssi_sram_mgr_init() - Initializes SRAM pool. + * cc_sram_mgr_init() - Initializes SRAM pool. * The pool starts right at the beginning of SRAM. * Returns zero for success, negative value otherwise. * * @drvdata: Associated device driver context */ -int ssi_sram_mgr_init(struct ssi_drvdata *drvdata) +int cc_sram_mgr_init(struct cc_drvdata *drvdata) { + struct cc_sram_ctx *ctx; + /* Allocate "this" context */ - drvdata->sram_mgr_handle = kzalloc(sizeof(struct ssi_sram_mgr_ctx), - GFP_KERNEL); + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (!drvdata->sram_mgr_handle) + if (!ctx) return -ENOMEM; + drvdata->sram_mgr_handle = ctx; + return 0; } @@ -69,18 +54,18 @@ int ssi_sram_mgr_init(struct ssi_drvdata *drvdata) * \param drvdata * \param size The requested bytes to allocate */ -ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, u32 size) +cc_sram_addr_t cc_sram_alloc(struct cc_drvdata *drvdata, u32 size) { - struct ssi_sram_mgr_ctx *smgr_ctx = drvdata->sram_mgr_handle; + struct cc_sram_ctx *smgr_ctx = drvdata->sram_mgr_handle; struct device *dev = drvdata_to_dev(drvdata); - ssi_sram_addr_t p; + cc_sram_addr_t p; - if (unlikely((size & 0x3) != 0)) { + if ((size & 0x3)) { dev_err(dev, "Requested buffer size (%u) is not multiple of 4", size); return NULL_SRAM_ADDR; } - if (unlikely(size > (SSI_CC_SRAM_SIZE - smgr_ctx->sram_free_offset))) { + if (size > (CC_CC_SRAM_SIZE - smgr_ctx->sram_free_offset)) { dev_err(dev, "Not enough space to allocate %u B (at offset %llu)\n", size, smgr_ctx->sram_free_offset); return NULL_SRAM_ADDR; @@ -93,7 +78,7 @@ ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, u32 size) } /** - * ssi_sram_mgr_const2sram_desc() - Create const descriptors sequence to + * cc_set_sram_desc() - Create const descriptors sequence to * set values in given array into SRAM. * Note: each const value can't exceed word size. * @@ -103,10 +88,9 @@ ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, u32 size) * @seq: A pointer to the given IN/OUT descriptor sequence * @seq_len: A pointer to the given IN/OUT sequence length */ -void ssi_sram_mgr_const2sram_desc( - const u32 *src, ssi_sram_addr_t dst, - unsigned int nelement, - struct cc_hw_desc *seq, unsigned int *seq_len) +void cc_set_sram_desc(const u32 *src, cc_sram_addr_t dst, + unsigned int nelement, struct cc_hw_desc *seq, + unsigned int *seq_len) { u32 i; unsigned int idx = *seq_len; diff --git a/drivers/staging/ccree/cc_sram_mgr.h b/drivers/staging/ccree/cc_sram_mgr.h new file mode 100644 index 000000000000..d48649fb3323 --- /dev/null +++ b/drivers/staging/ccree/cc_sram_mgr.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ + +#ifndef __CC_SRAM_MGR_H__ +#define __CC_SRAM_MGR_H__ + +#ifndef CC_CC_SRAM_SIZE +#define CC_CC_SRAM_SIZE 4096 +#endif + +struct cc_drvdata; + +/** + * Address (offset) within CC internal SRAM + */ + +typedef u64 cc_sram_addr_t; + +#define NULL_SRAM_ADDR ((cc_sram_addr_t)-1) + +/*! + * Initializes SRAM pool. + * The first X bytes of SRAM are reserved for ROM usage, hence, pool + * starts right after X bytes. + * + * \param drvdata + * + * \return int Zero for success, negative value otherwise. + */ +int cc_sram_mgr_init(struct cc_drvdata *drvdata); + +/*! + * Uninits SRAM pool. + * + * \param drvdata + */ +void cc_sram_mgr_fini(struct cc_drvdata *drvdata); + +/*! + * Allocated buffer from SRAM pool. + * Note: Caller is responsible to free the LAST allocated buffer. + * This function does not taking care of any fragmentation may occur + * by the order of calls to alloc/free. + * + * \param drvdata + * \param size The requested bytes to allocate + */ +cc_sram_addr_t cc_sram_alloc(struct cc_drvdata *drvdata, u32 size); + +/** + * cc_set_sram_desc() - Create const descriptors sequence to + * set values in given array into SRAM. + * Note: each const value can't exceed word size. + * + * @src: A pointer to array of words to set as consts. + * @dst: The target SRAM buffer to set into + * @nelements: The number of words in "src" array + * @seq: A pointer to the given IN/OUT descriptor sequence + * @seq_len: A pointer to the given IN/OUT sequence length + */ +void cc_set_sram_desc(const u32 *src, cc_sram_addr_t dst, + unsigned int nelement, struct cc_hw_desc *seq, + unsigned int *seq_len); + +#endif /*__CC_SRAM_MGR_H__*/ diff --git a/drivers/staging/ccree/dx_crys_kernel.h b/drivers/staging/ccree/dx_crys_kernel.h deleted file mode 100644 index 219603030344..000000000000 --- a/drivers/staging/ccree/dx_crys_kernel.h +++ /dev/null @@ -1,180 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __DX_CRYS_KERNEL_H__ -#define __DX_CRYS_KERNEL_H__ - -// -------------------------------------- -// BLOCK: DSCRPTR -// -------------------------------------- -#define DX_DSCRPTR_COMPLETION_COUNTER_REG_OFFSET 0xE00UL -#define DX_DSCRPTR_COMPLETION_COUNTER_COMPLETION_COUNTER_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_COMPLETION_COUNTER_COMPLETION_COUNTER_BIT_SIZE 0x6UL -#define DX_DSCRPTR_COMPLETION_COUNTER_OVERFLOW_COUNTER_BIT_SHIFT 0x6UL -#define DX_DSCRPTR_COMPLETION_COUNTER_OVERFLOW_COUNTER_BIT_SIZE 0x1UL -#define DX_DSCRPTR_SW_RESET_REG_OFFSET 0xE40UL -#define DX_DSCRPTR_SW_RESET_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_SW_RESET_VALUE_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_REG_OFFSET 0xE60UL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_NUM_OF_DSCRPTR_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_NUM_OF_DSCRPTR_BIT_SIZE 0xAUL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_DSCRPTR_SRAM_SIZE_BIT_SHIFT 0xAUL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_DSCRPTR_SRAM_SIZE_BIT_SIZE 0xCUL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_SRAM_SIZE_BIT_SHIFT 0x16UL -#define DX_DSCRPTR_QUEUE_SRAM_SIZE_SRAM_SIZE_BIT_SIZE 0x3UL -#define DX_DSCRPTR_SINGLE_ADDR_EN_REG_OFFSET 0xE64UL -#define DX_DSCRPTR_SINGLE_ADDR_EN_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_SINGLE_ADDR_EN_VALUE_BIT_SIZE 0x1UL -#define DX_DSCRPTR_MEASURE_CNTR_REG_OFFSET 0xE68UL -#define DX_DSCRPTR_MEASURE_CNTR_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_MEASURE_CNTR_VALUE_BIT_SIZE 0x20UL -#define DX_DSCRPTR_QUEUE_WORD0_REG_OFFSET 0xE80UL -#define DX_DSCRPTR_QUEUE_WORD0_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WORD0_VALUE_BIT_SIZE 0x20UL -#define DX_DSCRPTR_QUEUE_WORD1_REG_OFFSET 0xE84UL -#define DX_DSCRPTR_QUEUE_WORD1_DIN_DMA_MODE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WORD1_DIN_DMA_MODE_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SHIFT 0x2UL -#define DX_DSCRPTR_QUEUE_WORD1_DIN_SIZE_BIT_SIZE 0x18UL -#define DX_DSCRPTR_QUEUE_WORD1_NS_BIT_BIT_SHIFT 0x1AUL -#define DX_DSCRPTR_QUEUE_WORD1_NS_BIT_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD1_DIN_CONST_VALUE_BIT_SHIFT 0x1BUL -#define DX_DSCRPTR_QUEUE_WORD1_DIN_CONST_VALUE_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD1_NOT_LAST_BIT_SHIFT 0x1CUL -#define DX_DSCRPTR_QUEUE_WORD1_NOT_LAST_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD1_LOCK_QUEUE_BIT_SHIFT 0x1DUL -#define DX_DSCRPTR_QUEUE_WORD1_LOCK_QUEUE_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD1_NOT_USED_BIT_SHIFT 0x1EUL -#define DX_DSCRPTR_QUEUE_WORD1_NOT_USED_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD2_REG_OFFSET 0xE88UL -#define DX_DSCRPTR_QUEUE_WORD2_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WORD2_VALUE_BIT_SIZE 0x20UL -#define DX_DSCRPTR_QUEUE_WORD3_REG_OFFSET 0xE8CUL -#define DX_DSCRPTR_QUEUE_WORD3_DOUT_DMA_MODE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WORD3_DOUT_DMA_MODE_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD3_DOUT_SIZE_BIT_SHIFT 0x2UL -#define DX_DSCRPTR_QUEUE_WORD3_DOUT_SIZE_BIT_SIZE 0x18UL -#define DX_DSCRPTR_QUEUE_WORD3_NS_BIT_BIT_SHIFT 0x1AUL -#define DX_DSCRPTR_QUEUE_WORD3_NS_BIT_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD3_DOUT_LAST_IND_BIT_SHIFT 0x1BUL -#define DX_DSCRPTR_QUEUE_WORD3_DOUT_LAST_IND_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD3_HASH_XOR_BIT_BIT_SHIFT 0x1DUL -#define DX_DSCRPTR_QUEUE_WORD3_HASH_XOR_BIT_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD3_NOT_USED_BIT_SHIFT 0x1EUL -#define DX_DSCRPTR_QUEUE_WORD3_NOT_USED_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD3_QUEUE_LAST_IND_BIT_SHIFT 0x1FUL -#define DX_DSCRPTR_QUEUE_WORD3_QUEUE_LAST_IND_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_REG_OFFSET 0xE90UL -#define DX_DSCRPTR_QUEUE_WORD4_DATA_FLOW_MODE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WORD4_DATA_FLOW_MODE_BIT_SIZE 0x6UL -#define DX_DSCRPTR_QUEUE_WORD4_AES_SEL_N_HASH_BIT_SHIFT 0x6UL -#define DX_DSCRPTR_QUEUE_WORD4_AES_SEL_N_HASH_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_AES_XOR_CRYPTO_KEY_BIT_SHIFT 0x7UL -#define DX_DSCRPTR_QUEUE_WORD4_AES_XOR_CRYPTO_KEY_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_ACK_NEEDED_BIT_SHIFT 0x8UL -#define DX_DSCRPTR_QUEUE_WORD4_ACK_NEEDED_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_MODE_BIT_SHIFT 0xAUL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_MODE_BIT_SIZE 0x4UL -#define DX_DSCRPTR_QUEUE_WORD4_CMAC_SIZE0_BIT_SHIFT 0xEUL -#define DX_DSCRPTR_QUEUE_WORD4_CMAC_SIZE0_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_DO_BIT_SHIFT 0xFUL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_DO_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_CONF0_BIT_SHIFT 0x11UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_CONF0_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_CONF1_BIT_SHIFT 0x13UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_CONF1_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_CONF2_BIT_SHIFT 0x14UL -#define DX_DSCRPTR_QUEUE_WORD4_CIPHER_CONF2_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD4_KEY_SIZE_BIT_SHIFT 0x16UL -#define DX_DSCRPTR_QUEUE_WORD4_KEY_SIZE_BIT_SIZE 0x2UL -#define DX_DSCRPTR_QUEUE_WORD4_SETUP_OPERATION_BIT_SHIFT 0x18UL -#define DX_DSCRPTR_QUEUE_WORD4_SETUP_OPERATION_BIT_SIZE 0x4UL -#define DX_DSCRPTR_QUEUE_WORD4_DIN_SRAM_ENDIANNESS_BIT_SHIFT 0x1CUL -#define DX_DSCRPTR_QUEUE_WORD4_DIN_SRAM_ENDIANNESS_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_DOUT_SRAM_ENDIANNESS_BIT_SHIFT 0x1DUL -#define DX_DSCRPTR_QUEUE_WORD4_DOUT_SRAM_ENDIANNESS_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_WORD_SWAP_BIT_SHIFT 0x1EUL -#define DX_DSCRPTR_QUEUE_WORD4_WORD_SWAP_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD4_BYTES_SWAP_BIT_SHIFT 0x1FUL -#define DX_DSCRPTR_QUEUE_WORD4_BYTES_SWAP_BIT_SIZE 0x1UL -#define DX_DSCRPTR_QUEUE_WORD5_REG_OFFSET 0xE94UL -#define DX_DSCRPTR_QUEUE_WORD5_DIN_ADDR_HIGH_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WORD5_DIN_ADDR_HIGH_BIT_SIZE 0x10UL -#define DX_DSCRPTR_QUEUE_WORD5_DOUT_ADDR_HIGH_BIT_SHIFT 0x10UL -#define DX_DSCRPTR_QUEUE_WORD5_DOUT_ADDR_HIGH_BIT_SIZE 0x10UL -#define DX_DSCRPTR_QUEUE_WATERMARK_REG_OFFSET 0xE98UL -#define DX_DSCRPTR_QUEUE_WATERMARK_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_WATERMARK_VALUE_BIT_SIZE 0xAUL -#define DX_DSCRPTR_QUEUE_CONTENT_REG_OFFSET 0xE9CUL -#define DX_DSCRPTR_QUEUE_CONTENT_VALUE_BIT_SHIFT 0x0UL -#define DX_DSCRPTR_QUEUE_CONTENT_VALUE_BIT_SIZE 0xAUL -// -------------------------------------- -// BLOCK: AXI_P -// -------------------------------------- -#define DX_AXIM_MON_INFLIGHT_REG_OFFSET 0xB00UL -#define DX_AXIM_MON_INFLIGHT_VALUE_BIT_SHIFT 0x0UL -#define DX_AXIM_MON_INFLIGHT_VALUE_BIT_SIZE 0x8UL -#define DX_AXIM_MON_INFLIGHTLAST_REG_OFFSET 0xB40UL -#define DX_AXIM_MON_INFLIGHTLAST_VALUE_BIT_SHIFT 0x0UL -#define DX_AXIM_MON_INFLIGHTLAST_VALUE_BIT_SIZE 0x8UL -#define DX_AXIM_MON_COMP_REG_OFFSET 0xB80UL -#define DX_AXIM_MON_COMP_VALUE_BIT_SHIFT 0x0UL -#define DX_AXIM_MON_COMP_VALUE_BIT_SIZE 0x10UL -#define DX_AXIM_MON_ERR_REG_OFFSET 0xBC4UL -#define DX_AXIM_MON_ERR_BRESP_BIT_SHIFT 0x0UL -#define DX_AXIM_MON_ERR_BRESP_BIT_SIZE 0x2UL -#define DX_AXIM_MON_ERR_BID_BIT_SHIFT 0x2UL -#define DX_AXIM_MON_ERR_BID_BIT_SIZE 0x4UL -#define DX_AXIM_MON_ERR_RRESP_BIT_SHIFT 0x10UL -#define DX_AXIM_MON_ERR_RRESP_BIT_SIZE 0x2UL -#define DX_AXIM_MON_ERR_RID_BIT_SHIFT 0x12UL -#define DX_AXIM_MON_ERR_RID_BIT_SIZE 0x4UL -#define DX_AXIM_CFG_REG_OFFSET 0xBE8UL -#define DX_AXIM_CFG_BRESPMASK_BIT_SHIFT 0x4UL -#define DX_AXIM_CFG_BRESPMASK_BIT_SIZE 0x1UL -#define DX_AXIM_CFG_RRESPMASK_BIT_SHIFT 0x5UL -#define DX_AXIM_CFG_RRESPMASK_BIT_SIZE 0x1UL -#define DX_AXIM_CFG_INFLTMASK_BIT_SHIFT 0x6UL -#define DX_AXIM_CFG_INFLTMASK_BIT_SIZE 0x1UL -#define DX_AXIM_CFG_COMPMASK_BIT_SHIFT 0x7UL -#define DX_AXIM_CFG_COMPMASK_BIT_SIZE 0x1UL -#define DX_AXIM_ACE_CONST_REG_OFFSET 0xBECUL -#define DX_AXIM_ACE_CONST_ARDOMAIN_BIT_SHIFT 0x0UL -#define DX_AXIM_ACE_CONST_ARDOMAIN_BIT_SIZE 0x2UL -#define DX_AXIM_ACE_CONST_AWDOMAIN_BIT_SHIFT 0x2UL -#define DX_AXIM_ACE_CONST_AWDOMAIN_BIT_SIZE 0x2UL -#define DX_AXIM_ACE_CONST_ARBAR_BIT_SHIFT 0x4UL -#define DX_AXIM_ACE_CONST_ARBAR_BIT_SIZE 0x2UL -#define DX_AXIM_ACE_CONST_AWBAR_BIT_SHIFT 0x6UL -#define DX_AXIM_ACE_CONST_AWBAR_BIT_SIZE 0x2UL -#define DX_AXIM_ACE_CONST_ARSNOOP_BIT_SHIFT 0x8UL -#define DX_AXIM_ACE_CONST_ARSNOOP_BIT_SIZE 0x4UL -#define DX_AXIM_ACE_CONST_AWSNOOP_NOT_ALIGNED_BIT_SHIFT 0xCUL -#define DX_AXIM_ACE_CONST_AWSNOOP_NOT_ALIGNED_BIT_SIZE 0x3UL -#define DX_AXIM_ACE_CONST_AWSNOOP_ALIGNED_BIT_SHIFT 0xFUL -#define DX_AXIM_ACE_CONST_AWSNOOP_ALIGNED_BIT_SIZE 0x3UL -#define DX_AXIM_ACE_CONST_AWADDR_NOT_MASKED_BIT_SHIFT 0x12UL -#define DX_AXIM_ACE_CONST_AWADDR_NOT_MASKED_BIT_SIZE 0x7UL -#define DX_AXIM_ACE_CONST_AWLEN_VAL_BIT_SHIFT 0x19UL -#define DX_AXIM_ACE_CONST_AWLEN_VAL_BIT_SIZE 0x4UL -#define DX_AXIM_CACHE_PARAMS_REG_OFFSET 0xBF0UL -#define DX_AXIM_CACHE_PARAMS_AWCACHE_LAST_BIT_SHIFT 0x0UL -#define DX_AXIM_CACHE_PARAMS_AWCACHE_LAST_BIT_SIZE 0x4UL -#define DX_AXIM_CACHE_PARAMS_AWCACHE_BIT_SHIFT 0x4UL -#define DX_AXIM_CACHE_PARAMS_AWCACHE_BIT_SIZE 0x4UL -#define DX_AXIM_CACHE_PARAMS_ARCACHE_BIT_SHIFT 0x8UL -#define DX_AXIM_CACHE_PARAMS_ARCACHE_BIT_SIZE 0x4UL -#endif // __DX_CRYS_KERNEL_H__ diff --git a/drivers/staging/ccree/dx_host.h b/drivers/staging/ccree/dx_host.h deleted file mode 100644 index 863c2670d826..000000000000 --- a/drivers/staging/ccree/dx_host.h +++ /dev/null @@ -1,155 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __DX_HOST_H__ -#define __DX_HOST_H__ - -// -------------------------------------- -// BLOCK: HOST_P -// -------------------------------------- -#define DX_HOST_IRR_REG_OFFSET 0xA00UL -#define DX_HOST_IRR_DSCRPTR_COMPLETION_LOW_INT_BIT_SHIFT 0x2UL -#define DX_HOST_IRR_DSCRPTR_COMPLETION_LOW_INT_BIT_SIZE 0x1UL -#define DX_HOST_IRR_AXI_ERR_INT_BIT_SHIFT 0x8UL -#define DX_HOST_IRR_AXI_ERR_INT_BIT_SIZE 0x1UL -#define DX_HOST_IRR_GPR0_BIT_SHIFT 0xBUL -#define DX_HOST_IRR_GPR0_BIT_SIZE 0x1UL -#define DX_HOST_IRR_DSCRPTR_WATERMARK_INT_BIT_SHIFT 0x13UL -#define DX_HOST_IRR_DSCRPTR_WATERMARK_INT_BIT_SIZE 0x1UL -#define DX_HOST_IRR_AXIM_COMP_INT_BIT_SHIFT 0x17UL -#define DX_HOST_IRR_AXIM_COMP_INT_BIT_SIZE 0x1UL -#define DX_HOST_IMR_REG_OFFSET 0xA04UL -#define DX_HOST_IMR_NOT_USED_MASK_BIT_SHIFT 0x1UL -#define DX_HOST_IMR_NOT_USED_MASK_BIT_SIZE 0x1UL -#define DX_HOST_IMR_DSCRPTR_COMPLETION_MASK_BIT_SHIFT 0x2UL -#define DX_HOST_IMR_DSCRPTR_COMPLETION_MASK_BIT_SIZE 0x1UL -#define DX_HOST_IMR_AXI_ERR_MASK_BIT_SHIFT 0x8UL -#define DX_HOST_IMR_AXI_ERR_MASK_BIT_SIZE 0x1UL -#define DX_HOST_IMR_GPR0_BIT_SHIFT 0xBUL -#define DX_HOST_IMR_GPR0_BIT_SIZE 0x1UL -#define DX_HOST_IMR_DSCRPTR_WATERMARK_MASK0_BIT_SHIFT 0x13UL -#define DX_HOST_IMR_DSCRPTR_WATERMARK_MASK0_BIT_SIZE 0x1UL -#define DX_HOST_IMR_AXIM_COMP_INT_MASK_BIT_SHIFT 0x17UL -#define DX_HOST_IMR_AXIM_COMP_INT_MASK_BIT_SIZE 0x1UL -#define DX_HOST_ICR_REG_OFFSET 0xA08UL -#define DX_HOST_ICR_DSCRPTR_COMPLETION_BIT_SHIFT 0x2UL -#define DX_HOST_ICR_DSCRPTR_COMPLETION_BIT_SIZE 0x1UL -#define DX_HOST_ICR_AXI_ERR_CLEAR_BIT_SHIFT 0x8UL -#define DX_HOST_ICR_AXI_ERR_CLEAR_BIT_SIZE 0x1UL -#define DX_HOST_ICR_GPR_INT_CLEAR_BIT_SHIFT 0xBUL -#define DX_HOST_ICR_GPR_INT_CLEAR_BIT_SIZE 0x1UL -#define DX_HOST_ICR_DSCRPTR_WATERMARK_QUEUE0_CLEAR_BIT_SHIFT 0x13UL -#define DX_HOST_ICR_DSCRPTR_WATERMARK_QUEUE0_CLEAR_BIT_SIZE 0x1UL -#define DX_HOST_ICR_AXIM_COMP_INT_CLEAR_BIT_SHIFT 0x17UL -#define DX_HOST_ICR_AXIM_COMP_INT_CLEAR_BIT_SIZE 0x1UL -#define DX_HOST_SIGNATURE_REG_OFFSET 0xA24UL -#define DX_HOST_SIGNATURE_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_SIGNATURE_VALUE_BIT_SIZE 0x20UL -#define DX_HOST_BOOT_REG_OFFSET 0xA28UL -#define DX_HOST_BOOT_SYNTHESIS_CONFIG_BIT_SHIFT 0x0UL -#define DX_HOST_BOOT_SYNTHESIS_CONFIG_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_LARGE_RKEK_LOCAL_BIT_SHIFT 0x1UL -#define DX_HOST_BOOT_LARGE_RKEK_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_HASH_IN_FUSES_LOCAL_BIT_SHIFT 0x2UL -#define DX_HOST_BOOT_HASH_IN_FUSES_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_EXT_MEM_SECURED_LOCAL_BIT_SHIFT 0x3UL -#define DX_HOST_BOOT_EXT_MEM_SECURED_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_RKEK_ECC_EXISTS_LOCAL_N_BIT_SHIFT 0x5UL -#define DX_HOST_BOOT_RKEK_ECC_EXISTS_LOCAL_N_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_SRAM_SIZE_LOCAL_BIT_SHIFT 0x6UL -#define DX_HOST_BOOT_SRAM_SIZE_LOCAL_BIT_SIZE 0x3UL -#define DX_HOST_BOOT_DSCRPTR_EXISTS_LOCAL_BIT_SHIFT 0x9UL -#define DX_HOST_BOOT_DSCRPTR_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_PAU_EXISTS_LOCAL_BIT_SHIFT 0xAUL -#define DX_HOST_BOOT_PAU_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_RNG_EXISTS_LOCAL_BIT_SHIFT 0xBUL -#define DX_HOST_BOOT_RNG_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_PKA_EXISTS_LOCAL_BIT_SHIFT 0xCUL -#define DX_HOST_BOOT_PKA_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_RC4_EXISTS_LOCAL_BIT_SHIFT 0xDUL -#define DX_HOST_BOOT_RC4_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_SHA_512_PRSNT_LOCAL_BIT_SHIFT 0xEUL -#define DX_HOST_BOOT_SHA_512_PRSNT_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_SHA_256_PRSNT_LOCAL_BIT_SHIFT 0xFUL -#define DX_HOST_BOOT_SHA_256_PRSNT_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_MD5_PRSNT_LOCAL_BIT_SHIFT 0x10UL -#define DX_HOST_BOOT_MD5_PRSNT_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_HASH_EXISTS_LOCAL_BIT_SHIFT 0x11UL -#define DX_HOST_BOOT_HASH_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_C2_EXISTS_LOCAL_BIT_SHIFT 0x12UL -#define DX_HOST_BOOT_C2_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_DES_EXISTS_LOCAL_BIT_SHIFT 0x13UL -#define DX_HOST_BOOT_DES_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_XCBC_MAC_EXISTS_LOCAL_BIT_SHIFT 0x14UL -#define DX_HOST_BOOT_AES_XCBC_MAC_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_CMAC_EXISTS_LOCAL_BIT_SHIFT 0x15UL -#define DX_HOST_BOOT_AES_CMAC_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_CCM_EXISTS_LOCAL_BIT_SHIFT 0x16UL -#define DX_HOST_BOOT_AES_CCM_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_XEX_HW_T_CALC_LOCAL_BIT_SHIFT 0x17UL -#define DX_HOST_BOOT_AES_XEX_HW_T_CALC_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_XEX_EXISTS_LOCAL_BIT_SHIFT 0x18UL -#define DX_HOST_BOOT_AES_XEX_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_CTR_EXISTS_LOCAL_BIT_SHIFT 0x19UL -#define DX_HOST_BOOT_CTR_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_DIN_BYTE_RESOLUTION_LOCAL_BIT_SHIFT 0x1AUL -#define DX_HOST_BOOT_AES_DIN_BYTE_RESOLUTION_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_TUNNELING_ENB_LOCAL_BIT_SHIFT 0x1BUL -#define DX_HOST_BOOT_TUNNELING_ENB_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_SUPPORT_256_192_KEY_LOCAL_BIT_SHIFT 0x1CUL -#define DX_HOST_BOOT_SUPPORT_256_192_KEY_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_ONLY_ENCRYPT_LOCAL_BIT_SHIFT 0x1DUL -#define DX_HOST_BOOT_ONLY_ENCRYPT_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_BOOT_AES_EXISTS_LOCAL_BIT_SHIFT 0x1EUL -#define DX_HOST_BOOT_AES_EXISTS_LOCAL_BIT_SIZE 0x1UL -#define DX_HOST_VERSION_REG_OFFSET 0xA40UL -#define DX_HOST_VERSION_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_VERSION_VALUE_BIT_SIZE 0x20UL -#define DX_HOST_KFDE0_VALID_REG_OFFSET 0xA60UL -#define DX_HOST_KFDE0_VALID_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_KFDE0_VALID_VALUE_BIT_SIZE 0x1UL -#define DX_HOST_KFDE1_VALID_REG_OFFSET 0xA64UL -#define DX_HOST_KFDE1_VALID_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_KFDE1_VALID_VALUE_BIT_SIZE 0x1UL -#define DX_HOST_KFDE2_VALID_REG_OFFSET 0xA68UL -#define DX_HOST_KFDE2_VALID_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_KFDE2_VALID_VALUE_BIT_SIZE 0x1UL -#define DX_HOST_KFDE3_VALID_REG_OFFSET 0xA6CUL -#define DX_HOST_KFDE3_VALID_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_KFDE3_VALID_VALUE_BIT_SIZE 0x1UL -#define DX_HOST_GPR0_REG_OFFSET 0xA70UL -#define DX_HOST_GPR0_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_GPR0_VALUE_BIT_SIZE 0x20UL -#define DX_GPR_HOST_REG_OFFSET 0xA74UL -#define DX_GPR_HOST_VALUE_BIT_SHIFT 0x0UL -#define DX_GPR_HOST_VALUE_BIT_SIZE 0x20UL -#define DX_HOST_POWER_DOWN_EN_REG_OFFSET 0xA78UL -#define DX_HOST_POWER_DOWN_EN_VALUE_BIT_SHIFT 0x0UL -#define DX_HOST_POWER_DOWN_EN_VALUE_BIT_SIZE 0x1UL -// -------------------------------------- -// BLOCK: HOST_SRAM -// -------------------------------------- -#define DX_SRAM_DATA_REG_OFFSET 0xF00UL -#define DX_SRAM_DATA_VALUE_BIT_SHIFT 0x0UL -#define DX_SRAM_DATA_VALUE_BIT_SIZE 0x20UL -#define DX_SRAM_ADDR_REG_OFFSET 0xF04UL -#define DX_SRAM_ADDR_VALUE_BIT_SHIFT 0x0UL -#define DX_SRAM_ADDR_VALUE_BIT_SIZE 0xFUL -#define DX_SRAM_DATA_READY_REG_OFFSET 0xF08UL -#define DX_SRAM_DATA_READY_VALUE_BIT_SHIFT 0x0UL -#define DX_SRAM_DATA_READY_VALUE_BIT_SIZE 0x1UL - -#endif //__DX_HOST_H__ diff --git a/drivers/staging/ccree/dx_reg_common.h b/drivers/staging/ccree/dx_reg_common.h deleted file mode 100644 index d5132ffaf6e6..000000000000 --- a/drivers/staging/ccree/dx_reg_common.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __DX_REG_COMMON_H__ -#define __DX_REG_COMMON_H__ - -#define DX_DEV_SIGNATURE 0xDCC71200UL - -#define CC_HW_VERSION 0xef840015UL - -#define DX_DEV_SHA_MAX 512 - -#endif /*__DX_REG_COMMON_H__*/ diff --git a/drivers/staging/ccree/hash_defs.h b/drivers/staging/ccree/hash_defs.h deleted file mode 100644 index f52656f5a3ea..000000000000 --- a/drivers/staging/ccree/hash_defs.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef _HASH_DEFS_H_ -#define _HASH_DEFS_H_ - -#include "cc_crypto_ctx.h" - -enum cc_hash_conf_pad { - HASH_PADDING_DISABLED = 0, - HASH_PADDING_ENABLED = 1, - HASH_DIGEST_RESULT_LITTLE_ENDIAN = 2, - HASH_CONFIG1_PADDING_RESERVE32 = S32_MAX, -}; - -enum cc_hash_cipher_pad { - DO_NOT_PAD = 0, - DO_PAD = 1, - HASH_CIPHER_DO_PADDING_RESERVE32 = S32_MAX, -}; - -#endif /*_HASH_DEFS_H_*/ - diff --git a/drivers/staging/ccree/ssi_buffer_mgr.h b/drivers/staging/ccree/ssi_buffer_mgr.h deleted file mode 100644 index 1032f25edcab..000000000000 --- a/drivers/staging/ccree/ssi_buffer_mgr.h +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file buffer_mgr.h - * Buffer Manager - */ - -#ifndef __SSI_BUFFER_MGR_H__ -#define __SSI_BUFFER_MGR_H__ - -#include <crypto/algapi.h> - -#include "ssi_config.h" -#include "ssi_driver.h" - -enum ssi_req_dma_buf_type { - SSI_DMA_BUF_NULL = 0, - SSI_DMA_BUF_DLLI, - SSI_DMA_BUF_MLLI -}; - -enum ssi_sg_cpy_direct { - SSI_SG_TO_BUF = 0, - SSI_SG_FROM_BUF = 1 -}; - -struct ssi_mlli { - ssi_sram_addr_t sram_addr; - unsigned int nents; //sg nents - unsigned int mlli_nents; //mlli nents might be different than the above -}; - -struct mlli_params { - struct dma_pool *curr_pool; - u8 *mlli_virt_addr; - dma_addr_t mlli_dma_addr; - u32 mlli_len; -}; - -int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata); - -int ssi_buffer_mgr_fini(struct ssi_drvdata *drvdata); - -int ssi_buffer_mgr_map_blkcipher_request( - struct ssi_drvdata *drvdata, - void *ctx, - unsigned int ivsize, - unsigned int nbytes, - void *info, - struct scatterlist *src, - struct scatterlist *dst); - -void ssi_buffer_mgr_unmap_blkcipher_request( - struct device *dev, - void *ctx, - unsigned int ivsize, - struct scatterlist *src, - struct scatterlist *dst); - -int ssi_buffer_mgr_map_aead_request(struct ssi_drvdata *drvdata, struct aead_request *req); - -void ssi_buffer_mgr_unmap_aead_request(struct device *dev, struct aead_request *req); - -int ssi_buffer_mgr_map_hash_request_final(struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, bool do_update); - -int ssi_buffer_mgr_map_hash_request_update(struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, unsigned int block_size); - -void ssi_buffer_mgr_unmap_hash_request(struct device *dev, void *ctx, struct scatterlist *src, bool do_revert); - -void ssi_buffer_mgr_copy_scatterlist_portion(struct device *dev, u8 *dest, - struct scatterlist *sg, - u32 to_skip, u32 end, - enum ssi_sg_cpy_direct direct); - -void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len); - -#endif /*__BUFFER_MGR_H__*/ - diff --git a/drivers/staging/ccree/ssi_cipher.h b/drivers/staging/ccree/ssi_cipher.h deleted file mode 100644 index 25e6335c0d94..000000000000 --- a/drivers/staging/ccree/ssi_cipher.h +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file ssi_cipher.h - * ARM CryptoCell Cipher Crypto API - */ - -#ifndef __SSI_CIPHER_H__ -#define __SSI_CIPHER_H__ - -#include <linux/kernel.h> -#include <crypto/algapi.h> -#include "ssi_driver.h" -#include "ssi_buffer_mgr.h" - -/* Crypto cipher flags */ -#define CC_CRYPTO_CIPHER_KEY_KFDE0 BIT(0) -#define CC_CRYPTO_CIPHER_KEY_KFDE1 BIT(1) -#define CC_CRYPTO_CIPHER_KEY_KFDE2 BIT(2) -#define CC_CRYPTO_CIPHER_KEY_KFDE3 BIT(3) -#define CC_CRYPTO_CIPHER_DU_SIZE_512B BIT(4) - -#define CC_CRYPTO_CIPHER_KEY_KFDE_MASK (CC_CRYPTO_CIPHER_KEY_KFDE0 | CC_CRYPTO_CIPHER_KEY_KFDE1 | CC_CRYPTO_CIPHER_KEY_KFDE2 | CC_CRYPTO_CIPHER_KEY_KFDE3) - -struct blkcipher_req_ctx { - struct async_gen_req_ctx gen_ctx; - enum ssi_req_dma_buf_type dma_buf_type; - u32 in_nents; - u32 in_mlli_nents; - u32 out_nents; - u32 out_mlli_nents; - u8 *backup_info; /*store iv for generated IV flow*/ - u8 *iv; - bool is_giv; - struct mlli_params mlli_params; -}; - -int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata); - -int ssi_ablkcipher_free(struct ssi_drvdata *drvdata); - -#ifndef CRYPTO_ALG_BULK_MASK - -#define CRYPTO_ALG_BULK_DU_512 0x00002000 -#define CRYPTO_ALG_BULK_DU_4096 0x00004000 -#define CRYPTO_ALG_BULK_MASK (CRYPTO_ALG_BULK_DU_512 |\ - CRYPTO_ALG_BULK_DU_4096) -#endif /* CRYPTO_ALG_BULK_MASK */ - -#ifdef CRYPTO_TFM_REQ_HW_KEY - -static inline bool ssi_is_hw_key(struct crypto_tfm *tfm) -{ - return (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_HW_KEY); -} - -#else - -struct arm_hw_key_info { - int hw_key1; - int hw_key2; -}; - -static inline bool ssi_is_hw_key(struct crypto_tfm *tfm) -{ - return false; -} - -#endif /* CRYPTO_TFM_REQ_HW_KEY */ - -#endif /*__SSI_CIPHER_H__*/ diff --git a/drivers/staging/ccree/ssi_config.h b/drivers/staging/ccree/ssi_config.h deleted file mode 100644 index ff7597c2d77e..000000000000 --- a/drivers/staging/ccree/ssi_config.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file ssi_config.h - * Definitions for ARM CryptoCell Linux Crypto Driver - */ - -#ifndef __SSI_CONFIG_H__ -#define __SSI_CONFIG_H__ - -#include <linux/version.h> - -//#define FLUSH_CACHE_ALL -//#define COMPLETION_DELAY -//#define DX_DUMP_DESCS -// #define DX_DUMP_BYTES -// #define CC_DEBUG -#define ENABLE_CC_SYSFS /* Enable sysfs interface for debugging REE driver */ -//#define DX_IRQ_DELAY 100000 -#define DMA_BIT_MASK_LEN 48 /* was 32 bit, but for juno's sake it was enlarged to 48 bit */ - -#endif /*__DX_CONFIG_H__*/ - diff --git a/drivers/staging/ccree/ssi_driver.h b/drivers/staging/ccree/ssi_driver.h deleted file mode 100644 index 94c755cafb47..000000000000 --- a/drivers/staging/ccree/ssi_driver.h +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file ssi_driver.h - * ARM CryptoCell Linux Crypto Driver - */ - -#ifndef __SSI_DRIVER_H__ -#define __SSI_DRIVER_H__ - -#include "ssi_config.h" -#ifdef COMP_IN_WQ -#include <linux/workqueue.h> -#else -#include <linux/interrupt.h> -#endif -#include <linux/dma-mapping.h> -#include <crypto/algapi.h> -#include <crypto/internal/skcipher.h> -#include <crypto/aes.h> -#include <crypto/sha.h> -#include <crypto/aead.h> -#include <crypto/authenc.h> -#include <crypto/hash.h> -#include <linux/version.h> -#include <linux/clk.h> -#include <linux/platform_device.h> - -/* Registers definitions from shared/hw/ree_include */ -#include "dx_host.h" -#include "dx_reg_common.h" -#define CC_SUPPORT_SHA DX_DEV_SHA_MAX -#include "cc_crypto_ctx.h" -#include "ssi_sysfs.h" -#include "hash_defs.h" -#include "cc_hw_queue_defs.h" -#include "ssi_sram_mgr.h" - -#define DRV_MODULE_VERSION "3.0" - -#define SSI_DEV_NAME_STR "cc715ree" -#define CC_COHERENT_CACHE_PARAMS 0xEEE - -#define SSI_CC_HAS_AES_CCM 1 -#define SSI_CC_HAS_AES_GCM 1 -#define SSI_CC_HAS_AES_XTS 1 -#define SSI_CC_HAS_AES_ESSIV 1 -#define SSI_CC_HAS_AES_BITLOCKER 1 -#define SSI_CC_HAS_AES_CTS 1 -#define SSI_CC_HAS_MULTI2 0 -#define SSI_CC_HAS_CMAC 1 - -#define SSI_AXI_IRQ_MASK ((1 << DX_AXIM_CFG_BRESPMASK_BIT_SHIFT) | (1 << DX_AXIM_CFG_RRESPMASK_BIT_SHIFT) | \ - (1 << DX_AXIM_CFG_INFLTMASK_BIT_SHIFT) | (1 << DX_AXIM_CFG_COMPMASK_BIT_SHIFT)) - -#define SSI_AXI_ERR_IRQ_MASK BIT(DX_HOST_IRR_AXI_ERR_INT_BIT_SHIFT) - -#define SSI_COMP_IRQ_MASK BIT(DX_HOST_IRR_AXIM_COMP_INT_BIT_SHIFT) - -#define AXIM_MON_COMP_VALUE GENMASK(DX_AXIM_MON_COMP_VALUE_BIT_SIZE + \ - DX_AXIM_MON_COMP_VALUE_BIT_SHIFT, \ - DX_AXIM_MON_COMP_VALUE_BIT_SHIFT) - -/* Register name mangling macro */ -#define CC_REG(reg_name) DX_ ## reg_name ## _REG_OFFSET - -/* TEE FIPS status interrupt */ -#define SSI_GPR0_IRQ_MASK BIT(DX_HOST_IRR_GPR0_BIT_SHIFT) - -#define SSI_CRA_PRIO 3000 - -#define MIN_HW_QUEUE_SIZE 50 /* Minimum size required for proper function */ - -#define MAX_REQUEST_QUEUE_SIZE 4096 -#define MAX_MLLI_BUFF_SIZE 2080 -#define MAX_ICV_NENTS_SUPPORTED 2 - -/* Definitions for HW descriptors DIN/DOUT fields */ -#define NS_BIT 1 -#define AXI_ID 0 -/* AXI_ID is not actually the AXI ID of the transaction but the value of AXI_ID - * field in the HW descriptor. The DMA engine +8 that value. - */ - -#define MIN(a, b) (((a) < (b)) ? (a) : (b)) -#define MAX(a, b) (((a) > (b)) ? (a) : (b)) - -#define SSI_MAX_IVGEN_DMA_ADDRESSES 3 -struct ssi_crypto_req { - void (*user_cb)(struct device *dev, void *req, void __iomem *cc_base); - void *user_arg; - dma_addr_t ivgen_dma_addr[SSI_MAX_IVGEN_DMA_ADDRESSES]; - /* For the first 'ivgen_dma_addr_len' addresses of this array, - * generated IV would be placed in it by send_request(). - * Same generated IV for all addresses! - */ - unsigned int ivgen_dma_addr_len; /* Amount of 'ivgen_dma_addr' elements to be filled. */ - unsigned int ivgen_size; /* The generated IV size required, 8/16 B allowed. */ - struct completion seq_compl; /* request completion */ -}; - -/** - * struct ssi_drvdata - driver private data context - * @cc_base: virt address of the CC registers - * @irq: device IRQ number - * @irq_mask: Interrupt mask shadow (1 for masked interrupts) - * @fw_ver: SeP loaded firmware version - */ -struct ssi_drvdata { - void __iomem *cc_base; - int irq; - u32 irq_mask; - u32 fw_ver; - /* Calibration time of start/stop - * monitor descriptors - */ - u32 monitor_null_cycles; - struct platform_device *plat_dev; - ssi_sram_addr_t mlli_sram_addr; - void *buff_mgr_handle; - void *hash_handle; - void *aead_handle; - void *blkcipher_handle; - void *request_mgr_handle; - void *fips_handle; - void *ivgen_handle; - void *sram_mgr_handle; - struct clk *clk; - bool coherent; -}; - -struct ssi_crypto_alg { - struct list_head entry; - int cipher_mode; - int flow_mode; /* Note: currently, refers to the cipher mode only. */ - int auth_mode; - struct ssi_drvdata *drvdata; - struct crypto_alg crypto_alg; - struct aead_alg aead_alg; -}; - -struct ssi_alg_template { - char name[CRYPTO_MAX_ALG_NAME]; - char driver_name[CRYPTO_MAX_ALG_NAME]; - unsigned int blocksize; - u32 type; - union { - struct ablkcipher_alg ablkcipher; - struct aead_alg aead; - struct blkcipher_alg blkcipher; - struct cipher_alg cipher; - struct compress_alg compress; - } template_u; - int cipher_mode; - int flow_mode; /* Note: currently, refers to the cipher mode only. */ - int auth_mode; - struct ssi_drvdata *drvdata; -}; - -struct async_gen_req_ctx { - dma_addr_t iv_dma_addr; - enum drv_crypto_direction op_type; -}; - -static inline struct device *drvdata_to_dev(struct ssi_drvdata *drvdata) -{ - return &drvdata->plat_dev->dev; -} - -#ifdef DX_DUMP_BYTES -void dump_byte_array(const char *name, const u8 *the_array, unsigned long size); -#else -static inline void dump_byte_array(const char *name, const u8 *the_array, - unsigned long size) {}; -#endif - -int init_cc_regs(struct ssi_drvdata *drvdata, bool is_probe); -void fini_cc_regs(struct ssi_drvdata *drvdata); -int cc_clk_on(struct ssi_drvdata *drvdata); -void cc_clk_off(struct ssi_drvdata *drvdata); - -static inline void cc_iowrite(struct ssi_drvdata *drvdata, u32 reg, u32 val) -{ - iowrite32(val, (drvdata->cc_base + reg)); -} - -static inline u32 cc_ioread(struct ssi_drvdata *drvdata, u32 reg) -{ - return ioread32(drvdata->cc_base + reg); -} - -#endif /*__SSI_DRIVER_H__*/ - diff --git a/drivers/staging/ccree/ssi_fips.h b/drivers/staging/ccree/ssi_fips.h deleted file mode 100644 index 63bcca7f3af9..000000000000 --- a/drivers/staging/ccree/ssi_fips.h +++ /dev/null @@ -1,49 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __SSI_FIPS_H__ -#define __SSI_FIPS_H__ - -#ifdef CONFIG_CRYPTO_FIPS - -enum cc_fips_status { - CC_FIPS_SYNC_MODULE_OK = 0x0, - CC_FIPS_SYNC_MODULE_ERROR = 0x1, - CC_FIPS_SYNC_REE_STATUS = 0x4, - CC_FIPS_SYNC_TEE_STATUS = 0x8, - CC_FIPS_SYNC_STATUS_RESERVE32B = S32_MAX -}; - -int ssi_fips_init(struct ssi_drvdata *p_drvdata); -void ssi_fips_fini(struct ssi_drvdata *drvdata); -void fips_handler(struct ssi_drvdata *drvdata); -void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool ok); - -#else /* CONFIG_CRYPTO_FIPS */ - -static inline int ssi_fips_init(struct ssi_drvdata *p_drvdata) -{ - return 0; -} - -static inline void ssi_fips_fini(struct ssi_drvdata *drvdata) {} -static inline void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool ok) {} -static inline void fips_handler(struct ssi_drvdata *drvdata) {} - -#endif /* CONFIG_CRYPTO_FIPS */ - -#endif /*__SSI_FIPS_H__*/ - diff --git a/drivers/staging/ccree/ssi_hash.h b/drivers/staging/ccree/ssi_hash.h deleted file mode 100644 index 2400e389d65a..000000000000 --- a/drivers/staging/ccree/ssi_hash.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file ssi_hash.h - * ARM CryptoCell Hash Crypto API - */ - -#ifndef __SSI_HASH_H__ -#define __SSI_HASH_H__ - -#include "ssi_buffer_mgr.h" - -#define HMAC_IPAD_CONST 0x36363636 -#define HMAC_OPAD_CONST 0x5C5C5C5C -#if (DX_DEV_SHA_MAX > 256) -#define HASH_LEN_SIZE 16 -#define SSI_MAX_HASH_DIGEST_SIZE SHA512_DIGEST_SIZE -#define SSI_MAX_HASH_BLCK_SIZE SHA512_BLOCK_SIZE -#else -#define HASH_LEN_SIZE 8 -#define SSI_MAX_HASH_DIGEST_SIZE SHA256_DIGEST_SIZE -#define SSI_MAX_HASH_BLCK_SIZE SHA256_BLOCK_SIZE -#endif - -#define XCBC_MAC_K1_OFFSET 0 -#define XCBC_MAC_K2_OFFSET 16 -#define XCBC_MAC_K3_OFFSET 32 - -#define CC_EXPORT_MAGIC 0xC2EE1070U - -// this struct was taken from drivers/crypto/nx/nx-aes-xcbc.c and it is used for xcbc/cmac statesize -struct aeshash_state { - u8 state[AES_BLOCK_SIZE]; - unsigned int count; - u8 buffer[AES_BLOCK_SIZE]; -}; - -/* ahash state */ -struct ahash_req_ctx { - u8 *buff0; - u8 *buff1; - u8 *digest_result_buff; - struct async_gen_req_ctx gen_ctx; - enum ssi_req_dma_buf_type data_dma_buf_type; - u8 *digest_buff; - u8 *opad_digest_buff; - u8 *digest_bytes_len; - dma_addr_t opad_digest_dma_addr; - dma_addr_t digest_buff_dma_addr; - dma_addr_t digest_bytes_len_dma_addr; - dma_addr_t digest_result_dma_addr; - u32 buff0_cnt; - u32 buff1_cnt; - u32 buff_index; - u32 xcbc_count; /* count xcbc update operatations */ - struct scatterlist buff_sg[2]; - struct scatterlist *curr_sg; - u32 in_nents; - u32 mlli_nents; - struct mlli_params mlli_params; -}; - -int ssi_hash_alloc(struct ssi_drvdata *drvdata); -int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata); -int ssi_hash_free(struct ssi_drvdata *drvdata); - -/*! - * Gets the initial digest length - * - * \param drvdata - * \param mode The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256/SHA384/SHA512 - * - * \return u32 returns the address of the initial digest length in SRAM - */ -ssi_sram_addr_t -ssi_ahash_get_initial_digest_len_sram_addr(void *drvdata, u32 mode); - -/*! - * Gets the address of the initial digest in SRAM - * according to the given hash mode - * - * \param drvdata - * \param mode The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256/SHA384/SHA512 - * - * \return u32 The address of the inital digest in SRAM - */ -ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, u32 mode); - -#endif /*__SSI_HASH_H__*/ - diff --git a/drivers/staging/ccree/ssi_ivgen.h b/drivers/staging/ccree/ssi_ivgen.h deleted file mode 100644 index 961aea411cb3..000000000000 --- a/drivers/staging/ccree/ssi_ivgen.h +++ /dev/null @@ -1,71 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __SSI_IVGEN_H__ -#define __SSI_IVGEN_H__ - -#include "cc_hw_queue_defs.h" - -#define SSI_IVPOOL_SEQ_LEN 8 - -/*! - * Allocates iv-pool and maps resources. - * This function generates the first IV pool. - * - * \param drvdata Driver's private context - * - * \return int Zero for success, negative value otherwise. - */ -int ssi_ivgen_init(struct ssi_drvdata *drvdata); - -/*! - * Free iv-pool and ivgen context. - * - * \param drvdata - */ -void ssi_ivgen_fini(struct ssi_drvdata *drvdata); - -/*! - * Generates the initial pool in SRAM. - * This function should be invoked when resuming DX driver. - * - * \param drvdata - * - * \return int Zero for success, negative value otherwise. - */ -int ssi_ivgen_init_sram_pool(struct ssi_drvdata *drvdata); - -/*! - * Acquires 16 Bytes IV from the iv-pool - * - * \param drvdata Driver private context - * \param iv_out_dma Array of physical IV out addresses - * \param iv_out_dma_len Length of iv_out_dma array (additional elements of iv_out_dma array are ignore) - * \param iv_out_size May be 8 or 16 bytes long - * \param iv_seq IN/OUT array to the descriptors sequence - * \param iv_seq_len IN/OUT pointer to the sequence length - * - * \return int Zero for success, negative value otherwise. - */ -int ssi_ivgen_getiv( - struct ssi_drvdata *drvdata, - dma_addr_t iv_out_dma[], - unsigned int iv_out_dma_len, - unsigned int iv_out_size, - struct cc_hw_desc iv_seq[], - unsigned int *iv_seq_len); - -#endif /*__SSI_IVGEN_H__*/ diff --git a/drivers/staging/ccree/ssi_pm.c b/drivers/staging/ccree/ssi_pm.c deleted file mode 100644 index 36a498098a70..000000000000 --- a/drivers/staging/ccree/ssi_pm.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "ssi_config.h" -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <crypto/ctr.h> -#include <linux/pm_runtime.h> -#include "ssi_driver.h" -#include "ssi_buffer_mgr.h" -#include "ssi_request_mgr.h" -#include "ssi_sram_mgr.h" -#include "ssi_sysfs.h" -#include "ssi_ivgen.h" -#include "ssi_hash.h" -#include "ssi_pm.h" - -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - -#define POWER_DOWN_ENABLE 0x01 -#define POWER_DOWN_DISABLE 0x00 - -int ssi_power_mgr_runtime_suspend(struct device *dev) -{ - struct ssi_drvdata *drvdata = - (struct ssi_drvdata *)dev_get_drvdata(dev); - int rc; - - dev_dbg(dev, "set HOST_POWER_DOWN_EN\n"); - cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE); - rc = ssi_request_mgr_runtime_suspend_queue(drvdata); - if (rc != 0) { - dev_err(dev, "ssi_request_mgr_runtime_suspend_queue (%x)\n", - rc); - return rc; - } - fini_cc_regs(drvdata); - cc_clk_off(drvdata); - return 0; -} - -int ssi_power_mgr_runtime_resume(struct device *dev) -{ - int rc; - struct ssi_drvdata *drvdata = - (struct ssi_drvdata *)dev_get_drvdata(dev); - - dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n"); - cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE); - - rc = cc_clk_on(drvdata); - if (rc) { - dev_err(dev, "failed getting clock back on. We're toast.\n"); - return rc; - } - - rc = init_cc_regs(drvdata, false); - if (rc != 0) { - dev_err(dev, "init_cc_regs (%x)\n", rc); - return rc; - } - - rc = ssi_request_mgr_runtime_resume_queue(drvdata); - if (rc != 0) { - dev_err(dev, "ssi_request_mgr_runtime_resume_queue (%x)\n", rc); - return rc; - } - - /* must be after the queue resuming as it uses the HW queue*/ - ssi_hash_init_sram_digest_consts(drvdata); - - ssi_ivgen_init_sram_pool(drvdata); - return 0; -} - -int ssi_power_mgr_runtime_get(struct device *dev) -{ - int rc = 0; - - if (ssi_request_mgr_is_queue_runtime_suspend( - (struct ssi_drvdata *)dev_get_drvdata(dev))) { - rc = pm_runtime_get_sync(dev); - } else { - pm_runtime_get_noresume(dev); - } - return rc; -} - -int ssi_power_mgr_runtime_put_suspend(struct device *dev) -{ - int rc = 0; - - if (!ssi_request_mgr_is_queue_runtime_suspend( - (struct ssi_drvdata *)dev_get_drvdata(dev))) { - pm_runtime_mark_last_busy(dev); - rc = pm_runtime_put_autosuspend(dev); - } else { - /* Something wrong happens*/ - dev_err(dev, "request to suspend already suspended queue"); - rc = -EBUSY; - } - return rc; -} - -#endif - -int ssi_power_mgr_init(struct ssi_drvdata *drvdata) -{ - int rc = 0; -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - struct device *dev = drvdata_to_dev(drvdata); - - /* must be before the enabling to avoid resdundent suspending */ - pm_runtime_set_autosuspend_delay(dev, SSI_SUSPEND_TIMEOUT); - pm_runtime_use_autosuspend(dev); - /* activate the PM module */ - rc = pm_runtime_set_active(dev); - if (rc != 0) - return rc; - /* enable the PM module*/ - pm_runtime_enable(dev); -#endif - return rc; -} - -void ssi_power_mgr_fini(struct ssi_drvdata *drvdata) -{ -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - pm_runtime_disable(drvdata_to_dev(drvdata)); -#endif -} diff --git a/drivers/staging/ccree/ssi_pm.h b/drivers/staging/ccree/ssi_pm.h deleted file mode 100644 index 63673f60d2d8..000000000000 --- a/drivers/staging/ccree/ssi_pm.h +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file ssi_pm.h - */ - -#ifndef __SSI_POWER_MGR_H__ -#define __SSI_POWER_MGR_H__ - -#include "ssi_config.h" -#include "ssi_driver.h" - -#define SSI_SUSPEND_TIMEOUT 3000 - -int ssi_power_mgr_init(struct ssi_drvdata *drvdata); - -void ssi_power_mgr_fini(struct ssi_drvdata *drvdata); - -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) -int ssi_power_mgr_runtime_suspend(struct device *dev); - -int ssi_power_mgr_runtime_resume(struct device *dev); - -int ssi_power_mgr_runtime_get(struct device *dev); - -int ssi_power_mgr_runtime_put_suspend(struct device *dev); -#endif - -#endif /*__POWER_MGR_H__*/ - diff --git a/drivers/staging/ccree/ssi_request_mgr.c b/drivers/staging/ccree/ssi_request_mgr.c deleted file mode 100644 index a8a7dc672d4c..000000000000 --- a/drivers/staging/ccree/ssi_request_mgr.c +++ /dev/null @@ -1,610 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "ssi_config.h" -#include <linux/kernel.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <crypto/ctr.h> -#ifdef FLUSH_CACHE_ALL -#include <asm/cacheflush.h> -#endif -#include <linux/pm_runtime.h> -#include "ssi_driver.h" -#include "ssi_buffer_mgr.h" -#include "ssi_request_mgr.h" -#include "ssi_sysfs.h" -#include "ssi_ivgen.h" -#include "ssi_pm.h" - -#define SSI_MAX_POLL_ITER 10 - -struct ssi_request_mgr_handle { - /* Request manager resources */ - unsigned int hw_queue_size; /* HW capability */ - unsigned int min_free_hw_slots; - unsigned int max_used_sw_slots; - struct ssi_crypto_req req_queue[MAX_REQUEST_QUEUE_SIZE]; - u32 req_queue_head; - u32 req_queue_tail; - u32 axi_completed; - u32 q_free_slots; - spinlock_t hw_lock; - struct cc_hw_desc compl_desc; - u8 *dummy_comp_buff; - dma_addr_t dummy_comp_buff_dma; - struct cc_hw_desc monitor_desc; - -#ifdef COMP_IN_WQ - struct workqueue_struct *workq; - struct delayed_work compwork; -#else - struct tasklet_struct comptask; -#endif -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - bool is_runtime_suspended; -#endif -}; - -static void comp_handler(unsigned long devarg); -#ifdef COMP_IN_WQ -static void comp_work_handler(struct work_struct *work); -#endif - -void request_mgr_fini(struct ssi_drvdata *drvdata) -{ - struct ssi_request_mgr_handle *req_mgr_h = drvdata->request_mgr_handle; - struct device *dev = drvdata_to_dev(drvdata); - - if (!req_mgr_h) - return; /* Not allocated */ - - if (req_mgr_h->dummy_comp_buff_dma != 0) { - dma_free_coherent(dev, sizeof(u32), req_mgr_h->dummy_comp_buff, - req_mgr_h->dummy_comp_buff_dma); - } - - dev_dbg(dev, "max_used_hw_slots=%d\n", (req_mgr_h->hw_queue_size - - req_mgr_h->min_free_hw_slots)); - dev_dbg(dev, "max_used_sw_slots=%d\n", req_mgr_h->max_used_sw_slots); - -#ifdef COMP_IN_WQ - flush_workqueue(req_mgr_h->workq); - destroy_workqueue(req_mgr_h->workq); -#else - /* Kill tasklet */ - tasklet_kill(&req_mgr_h->comptask); -#endif - memset(req_mgr_h, 0, sizeof(struct ssi_request_mgr_handle)); - kfree(req_mgr_h); - drvdata->request_mgr_handle = NULL; -} - -int request_mgr_init(struct ssi_drvdata *drvdata) -{ - struct ssi_request_mgr_handle *req_mgr_h; - struct device *dev = drvdata_to_dev(drvdata); - int rc = 0; - - req_mgr_h = kzalloc(sizeof(*req_mgr_h), GFP_KERNEL); - if (!req_mgr_h) { - rc = -ENOMEM; - goto req_mgr_init_err; - } - - drvdata->request_mgr_handle = req_mgr_h; - - spin_lock_init(&req_mgr_h->hw_lock); -#ifdef COMP_IN_WQ - dev_dbg(dev, "Initializing completion workqueue\n"); - req_mgr_h->workq = create_singlethread_workqueue("arm_cc7x_wq"); - if (unlikely(!req_mgr_h->workq)) { - dev_err(dev, "Failed creating work queue\n"); - rc = -ENOMEM; - goto req_mgr_init_err; - } - INIT_DELAYED_WORK(&req_mgr_h->compwork, comp_work_handler); -#else - dev_dbg(dev, "Initializing completion tasklet\n"); - tasklet_init(&req_mgr_h->comptask, comp_handler, (unsigned long)drvdata); -#endif - req_mgr_h->hw_queue_size = cc_ioread(drvdata, - CC_REG(DSCRPTR_QUEUE_SRAM_SIZE)); - dev_dbg(dev, "hw_queue_size=0x%08X\n", req_mgr_h->hw_queue_size); - if (req_mgr_h->hw_queue_size < MIN_HW_QUEUE_SIZE) { - dev_err(dev, "Invalid HW queue size = %u (Min. required is %u)\n", - req_mgr_h->hw_queue_size, MIN_HW_QUEUE_SIZE); - rc = -ENOMEM; - goto req_mgr_init_err; - } - req_mgr_h->min_free_hw_slots = req_mgr_h->hw_queue_size; - req_mgr_h->max_used_sw_slots = 0; - - /* Allocate DMA word for "dummy" completion descriptor use */ - req_mgr_h->dummy_comp_buff = dma_alloc_coherent(dev, sizeof(u32), - &req_mgr_h->dummy_comp_buff_dma, - GFP_KERNEL); - if (!req_mgr_h->dummy_comp_buff) { - dev_err(dev, "Not enough memory to allocate DMA (%zu) dropped buffer\n", - sizeof(u32)); - rc = -ENOMEM; - goto req_mgr_init_err; - } - - /* Init. "dummy" completion descriptor */ - hw_desc_init(&req_mgr_h->compl_desc); - set_din_const(&req_mgr_h->compl_desc, 0, sizeof(u32)); - set_dout_dlli(&req_mgr_h->compl_desc, req_mgr_h->dummy_comp_buff_dma, - sizeof(u32), NS_BIT, 1); - set_flow_mode(&req_mgr_h->compl_desc, BYPASS); - set_queue_last_ind(&req_mgr_h->compl_desc); - - return 0; - -req_mgr_init_err: - request_mgr_fini(drvdata); - return rc; -} - -static inline void enqueue_seq( - void __iomem *cc_base, - struct cc_hw_desc seq[], unsigned int seq_len) -{ - int i; - - for (i = 0; i < seq_len; i++) { - writel_relaxed(seq[i].word[0], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0))); - writel_relaxed(seq[i].word[1], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0))); - writel_relaxed(seq[i].word[2], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0))); - writel_relaxed(seq[i].word[3], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0))); - writel_relaxed(seq[i].word[4], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0))); - wmb(); - writel_relaxed(seq[i].word[5], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0))); -#ifdef DX_DUMP_DESCS - dev_dbg(dev, "desc[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X\n", - i, seq[i].word[0], seq[i].word[1], seq[i].word[2], - seq[i].word[3], seq[i].word[4], seq[i].word[5]); -#endif - } -} - -/*! - * Completion will take place if and only if user requested completion - * by setting "is_dout = 0" in send_request(). - * - * \param dev - * \param dx_compl_h The completion event to signal - */ -static void request_mgr_complete(struct device *dev, void *dx_compl_h, void __iomem *cc_base) -{ - struct completion *this_compl = dx_compl_h; - - complete(this_compl); -} - -static inline int request_mgr_queues_status_check( - struct ssi_drvdata *drvdata, - struct ssi_request_mgr_handle *req_mgr_h, - unsigned int total_seq_len) -{ - unsigned long poll_queue; - struct device *dev = drvdata_to_dev(drvdata); - - /* SW queue is checked only once as it will not - * be chaned during the poll becasue the spinlock_bh - * is held by the thread - */ - if (unlikely(((req_mgr_h->req_queue_head + 1) & - (MAX_REQUEST_QUEUE_SIZE - 1)) == - req_mgr_h->req_queue_tail)) { - dev_err(dev, "SW FIFO is full. req_queue_head=%d sw_fifo_len=%d\n", - req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE); - return -EBUSY; - } - - if ((likely(req_mgr_h->q_free_slots >= total_seq_len))) - return 0; - - /* Wait for space in HW queue. Poll constant num of iterations. */ - for (poll_queue = 0; poll_queue < SSI_MAX_POLL_ITER ; poll_queue++) { - req_mgr_h->q_free_slots = - cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT)); - if (unlikely(req_mgr_h->q_free_slots < - req_mgr_h->min_free_hw_slots)) { - req_mgr_h->min_free_hw_slots = req_mgr_h->q_free_slots; - } - - if (likely(req_mgr_h->q_free_slots >= total_seq_len)) { - /* If there is enough place return */ - return 0; - } - - dev_dbg(dev, "HW FIFO is full. q_free_slots=%d total_seq_len=%d\n", - req_mgr_h->q_free_slots, total_seq_len); - } - /* No room in the HW queue try again later */ - dev_dbg(dev, "HW FIFO full, timeout. req_queue_head=%d sw_fifo_len=%d q_free_slots=%d total_seq_len=%d\n", - req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE, - req_mgr_h->q_free_slots, total_seq_len); - return -EAGAIN; -} - -/*! - * Enqueue caller request to crypto hardware. - * - * \param drvdata - * \param ssi_req The request to enqueue - * \param desc The crypto sequence - * \param len The crypto sequence length - * \param is_dout If "true": completion is handled by the caller - * If "false": this function adds a dummy descriptor completion - * and waits upon completion signal. - * - * \return int Returns -EINPROGRESS if "is_dout=true"; "0" if "is_dout=false" - */ -int send_request( - struct ssi_drvdata *drvdata, struct ssi_crypto_req *ssi_req, - struct cc_hw_desc *desc, unsigned int len, bool is_dout) -{ - void __iomem *cc_base = drvdata->cc_base; - struct ssi_request_mgr_handle *req_mgr_h = drvdata->request_mgr_handle; - unsigned int used_sw_slots; - unsigned int iv_seq_len = 0; - unsigned int total_seq_len = len; /*initial sequence length*/ - struct cc_hw_desc iv_seq[SSI_IVPOOL_SEQ_LEN]; - struct device *dev = drvdata_to_dev(drvdata); - int rc; - unsigned int max_required_seq_len = (total_seq_len + - ((ssi_req->ivgen_dma_addr_len == 0) ? 0 : - SSI_IVPOOL_SEQ_LEN) + - (!is_dout ? 1 : 0)); - -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - rc = ssi_power_mgr_runtime_get(dev); - if (rc != 0) { - dev_err(dev, "ssi_power_mgr_runtime_get returned %x\n", rc); - return rc; - } -#endif - - do { - spin_lock_bh(&req_mgr_h->hw_lock); - - /* Check if there is enough place in the SW/HW queues - * in case iv gen add the max size and in case of no dout add 1 - * for the internal completion descriptor - */ - rc = request_mgr_queues_status_check(drvdata, req_mgr_h, - max_required_seq_len); - if (likely(rc == 0)) - /* There is enough place in the queue */ - break; - /* something wrong release the spinlock*/ - spin_unlock_bh(&req_mgr_h->hw_lock); - - if (rc != -EAGAIN) { - /* Any error other than HW queue full - * (SW queue is full) - */ -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - ssi_power_mgr_runtime_put_suspend(dev); -#endif - return rc; - } - - /* HW queue is full - short sleep */ - msleep(1); - } while (1); - - /* Additional completion descriptor is needed incase caller did not - * enabled any DLLI/MLLI DOUT bit in the given sequence - */ - if (!is_dout) { - init_completion(&ssi_req->seq_compl); - ssi_req->user_cb = request_mgr_complete; - ssi_req->user_arg = &ssi_req->seq_compl; - total_seq_len++; - } - - if (ssi_req->ivgen_dma_addr_len > 0) { - dev_dbg(dev, "Acquire IV from pool into %d DMA addresses %pad, %pad, %pad, IV-size=%u\n", - ssi_req->ivgen_dma_addr_len, - &ssi_req->ivgen_dma_addr[0], - &ssi_req->ivgen_dma_addr[1], - &ssi_req->ivgen_dma_addr[2], - ssi_req->ivgen_size); - - /* Acquire IV from pool */ - rc = ssi_ivgen_getiv(drvdata, ssi_req->ivgen_dma_addr, - ssi_req->ivgen_dma_addr_len, - ssi_req->ivgen_size, iv_seq, &iv_seq_len); - - if (unlikely(rc != 0)) { - dev_err(dev, "Failed to generate IV (rc=%d)\n", rc); - spin_unlock_bh(&req_mgr_h->hw_lock); -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - ssi_power_mgr_runtime_put_suspend(dev); -#endif - return rc; - } - - total_seq_len += iv_seq_len; - } - - used_sw_slots = ((req_mgr_h->req_queue_head - req_mgr_h->req_queue_tail) & (MAX_REQUEST_QUEUE_SIZE - 1)); - if (unlikely(used_sw_slots > req_mgr_h->max_used_sw_slots)) - req_mgr_h->max_used_sw_slots = used_sw_slots; - - /* Enqueue request - must be locked with HW lock*/ - req_mgr_h->req_queue[req_mgr_h->req_queue_head] = *ssi_req; - req_mgr_h->req_queue_head = (req_mgr_h->req_queue_head + 1) & (MAX_REQUEST_QUEUE_SIZE - 1); - /* TODO: Use circ_buf.h ? */ - - dev_dbg(dev, "Enqueue request head=%u\n", req_mgr_h->req_queue_head); - -#ifdef FLUSH_CACHE_ALL - flush_cache_all(); -#endif - - /* STAT_PHASE_4: Push sequence */ - enqueue_seq(cc_base, iv_seq, iv_seq_len); - enqueue_seq(cc_base, desc, len); - enqueue_seq(cc_base, &req_mgr_h->compl_desc, (is_dout ? 0 : 1)); - - if (unlikely(req_mgr_h->q_free_slots < total_seq_len)) { - /* This situation should never occur. Maybe indicating problem - * with resuming power. Set the free slot count to 0 and hope - * for the best. - */ - dev_err(dev, "HW free slot count mismatch."); - req_mgr_h->q_free_slots = 0; - } else { - /* Update the free slots in HW queue */ - req_mgr_h->q_free_slots -= total_seq_len; - } - - spin_unlock_bh(&req_mgr_h->hw_lock); - - if (!is_dout) { - /* Wait upon sequence completion. - * Return "0" -Operation done successfully. - */ - wait_for_completion(&ssi_req->seq_compl); - return 0; - } - /* Operation still in process */ - return -EINPROGRESS; -} - -/*! - * Enqueue caller request to crypto hardware during init process. - * assume this function is not called in middle of a flow, - * since we set QUEUE_LAST_IND flag in the last descriptor. - * - * \param drvdata - * \param desc The crypto sequence - * \param len The crypto sequence length - * - * \return int Returns "0" upon success - */ -int send_request_init( - struct ssi_drvdata *drvdata, struct cc_hw_desc *desc, unsigned int len) -{ - void __iomem *cc_base = drvdata->cc_base; - struct ssi_request_mgr_handle *req_mgr_h = drvdata->request_mgr_handle; - unsigned int total_seq_len = len; /*initial sequence length*/ - int rc = 0; - - /* Wait for space in HW and SW FIFO. Poll for as much as FIFO_TIMEOUT. */ - rc = request_mgr_queues_status_check(drvdata, req_mgr_h, - total_seq_len); - if (unlikely(rc != 0)) - return rc; - - set_queue_last_ind(&desc[(len - 1)]); - - enqueue_seq(cc_base, desc, len); - - /* Update the free slots in HW queue */ - req_mgr_h->q_free_slots = - cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT)); - - return 0; -} - -void complete_request(struct ssi_drvdata *drvdata) -{ - struct ssi_request_mgr_handle *request_mgr_handle = - drvdata->request_mgr_handle; -#ifdef COMP_IN_WQ - queue_delayed_work(request_mgr_handle->workq, &request_mgr_handle->compwork, 0); -#else - tasklet_schedule(&request_mgr_handle->comptask); -#endif -} - -#ifdef COMP_IN_WQ -static void comp_work_handler(struct work_struct *work) -{ - struct ssi_drvdata *drvdata = - container_of(work, struct ssi_drvdata, compwork.work); - - comp_handler((unsigned long)drvdata); -} -#endif - -static void proc_completions(struct ssi_drvdata *drvdata) -{ - struct ssi_crypto_req *ssi_req; - struct device *dev = drvdata_to_dev(drvdata); - struct ssi_request_mgr_handle *request_mgr_handle = - drvdata->request_mgr_handle; -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - int rc = 0; -#endif - - while (request_mgr_handle->axi_completed) { - request_mgr_handle->axi_completed--; - - /* Dequeue request */ - if (unlikely(request_mgr_handle->req_queue_head == request_mgr_handle->req_queue_tail)) { - /* We are supposed to handle a completion but our - * queue is empty. This is not normal. Return and - * hope for the best. - */ - dev_err(dev, "Request queue is empty head == tail %u\n", - request_mgr_handle->req_queue_head); - break; - } - - ssi_req = &request_mgr_handle->req_queue[request_mgr_handle->req_queue_tail]; - -#ifdef FLUSH_CACHE_ALL - flush_cache_all(); -#endif - -#ifdef COMPLETION_DELAY - /* Delay */ - { - u32 axi_err; - int i; - - dev_info(dev, "Delay\n"); - for (i = 0; i < 1000000; i++) - axi_err = cc_ioread(drvdata, - CC_REG(AXIM_MON_ERR)); - } -#endif /* COMPLETION_DELAY */ - - if (likely(ssi_req->user_cb)) - ssi_req->user_cb(dev, ssi_req->user_arg, - drvdata->cc_base); - request_mgr_handle->req_queue_tail = (request_mgr_handle->req_queue_tail + 1) & (MAX_REQUEST_QUEUE_SIZE - 1); - dev_dbg(dev, "Dequeue request tail=%u\n", - request_mgr_handle->req_queue_tail); - dev_dbg(dev, "Request completed. axi_completed=%d\n", - request_mgr_handle->axi_completed); -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) - rc = ssi_power_mgr_runtime_put_suspend(dev); - if (rc != 0) - dev_err(dev, "Failed to set runtime suspension %d\n", - rc); -#endif - } -} - -static inline u32 cc_axi_comp_count(struct ssi_drvdata *drvdata) -{ - return FIELD_GET(AXIM_MON_COMP_VALUE, - cc_ioread(drvdata, CC_REG(AXIM_MON_COMP))); -} - -/* Deferred service handler, run as interrupt-fired tasklet */ -static void comp_handler(unsigned long devarg) -{ - struct ssi_drvdata *drvdata = (struct ssi_drvdata *)devarg; - struct ssi_request_mgr_handle *request_mgr_handle = - drvdata->request_mgr_handle; - - u32 irq; - - irq = (drvdata->irq & SSI_COMP_IRQ_MASK); - - if (irq & SSI_COMP_IRQ_MASK) { - /* To avoid the interrupt from firing as we unmask it, - * we clear it now - */ - cc_iowrite(drvdata, CC_REG(HOST_ICR), SSI_COMP_IRQ_MASK); - - /* Avoid race with above clear: Test completion counter - * once more - */ - request_mgr_handle->axi_completed += - cc_axi_comp_count(drvdata); - - while (request_mgr_handle->axi_completed) { - do { - proc_completions(drvdata); - /* At this point (after proc_completions()), - * request_mgr_handle->axi_completed is 0. - */ - request_mgr_handle->axi_completed = - cc_axi_comp_count(drvdata); - } while (request_mgr_handle->axi_completed > 0); - - cc_iowrite(drvdata, CC_REG(HOST_ICR), - SSI_COMP_IRQ_MASK); - - request_mgr_handle->axi_completed += - cc_axi_comp_count(drvdata); - } - } - /* after verifing that there is nothing to do, - * unmask AXI completion interrupt - */ - cc_iowrite(drvdata, CC_REG(HOST_IMR), - cc_ioread(drvdata, CC_REG(HOST_IMR)) & ~irq); -} - -/* - * resume the queue configuration - no need to take the lock as this happens inside - * the spin lock protection - */ -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) -int ssi_request_mgr_runtime_resume_queue(struct ssi_drvdata *drvdata) -{ - struct ssi_request_mgr_handle *request_mgr_handle = drvdata->request_mgr_handle; - - spin_lock_bh(&request_mgr_handle->hw_lock); - request_mgr_handle->is_runtime_suspended = false; - spin_unlock_bh(&request_mgr_handle->hw_lock); - - return 0; -} - -/* - * suspend the queue configuration. Since it is used for the runtime suspend - * only verify that the queue can be suspended. - */ -int ssi_request_mgr_runtime_suspend_queue(struct ssi_drvdata *drvdata) -{ - struct ssi_request_mgr_handle *request_mgr_handle = - drvdata->request_mgr_handle; - - /* lock the send_request */ - spin_lock_bh(&request_mgr_handle->hw_lock); - if (request_mgr_handle->req_queue_head != - request_mgr_handle->req_queue_tail) { - spin_unlock_bh(&request_mgr_handle->hw_lock); - return -EBUSY; - } - request_mgr_handle->is_runtime_suspended = true; - spin_unlock_bh(&request_mgr_handle->hw_lock); - - return 0; -} - -bool ssi_request_mgr_is_queue_runtime_suspend(struct ssi_drvdata *drvdata) -{ - struct ssi_request_mgr_handle *request_mgr_handle = - drvdata->request_mgr_handle; - - return request_mgr_handle->is_runtime_suspended; -} - -#endif - diff --git a/drivers/staging/ccree/ssi_request_mgr.h b/drivers/staging/ccree/ssi_request_mgr.h deleted file mode 100644 index bdbbf89e5367..000000000000 --- a/drivers/staging/ccree/ssi_request_mgr.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file request_mgr.h - * Request Manager - */ - -#ifndef __REQUEST_MGR_H__ -#define __REQUEST_MGR_H__ - -#include "cc_hw_queue_defs.h" - -int request_mgr_init(struct ssi_drvdata *drvdata); - -/*! - * Enqueue caller request to crypto hardware. - * - * \param drvdata - * \param ssi_req The request to enqueue - * \param desc The crypto sequence - * \param len The crypto sequence length - * \param is_dout If "true": completion is handled by the caller - * If "false": this function adds a dummy descriptor completion - * and waits upon completion signal. - * - * \return int Returns -EINPROGRESS if "is_dout=ture"; "0" if "is_dout=false" - */ -int send_request( - struct ssi_drvdata *drvdata, struct ssi_crypto_req *ssi_req, - struct cc_hw_desc *desc, unsigned int len, bool is_dout); - -int send_request_init( - struct ssi_drvdata *drvdata, struct cc_hw_desc *desc, unsigned int len); - -void complete_request(struct ssi_drvdata *drvdata); - -void request_mgr_fini(struct ssi_drvdata *drvdata); - -#if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP) -int ssi_request_mgr_runtime_resume_queue(struct ssi_drvdata *drvdata); - -int ssi_request_mgr_runtime_suspend_queue(struct ssi_drvdata *drvdata); - -bool ssi_request_mgr_is_queue_runtime_suspend(struct ssi_drvdata *drvdata); -#endif - -#endif /*__REQUEST_MGR_H__*/ diff --git a/drivers/staging/ccree/ssi_sram_mgr.h b/drivers/staging/ccree/ssi_sram_mgr.h deleted file mode 100644 index 9ba1d59a0bae..000000000000 --- a/drivers/staging/ccree/ssi_sram_mgr.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __SSI_SRAM_MGR_H__ -#define __SSI_SRAM_MGR_H__ - -#ifndef SSI_CC_SRAM_SIZE -#define SSI_CC_SRAM_SIZE 4096 -#endif - -struct ssi_drvdata; - -/** - * Address (offset) within CC internal SRAM - */ - -typedef u64 ssi_sram_addr_t; - -#define NULL_SRAM_ADDR ((ssi_sram_addr_t)-1) - -/*! - * Initializes SRAM pool. - * The first X bytes of SRAM are reserved for ROM usage, hence, pool - * starts right after X bytes. - * - * \param drvdata - * - * \return int Zero for success, negative value otherwise. - */ -int ssi_sram_mgr_init(struct ssi_drvdata *drvdata); - -/*! - * Uninits SRAM pool. - * - * \param drvdata - */ -void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata); - -/*! - * Allocated buffer from SRAM pool. - * Note: Caller is responsible to free the LAST allocated buffer. - * This function does not taking care of any fragmentation may occur - * by the order of calls to alloc/free. - * - * \param drvdata - * \param size The requested bytes to allocate - */ -ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, u32 size); - -/** - * ssi_sram_mgr_const2sram_desc() - Create const descriptors sequence to - * set values in given array into SRAM. - * Note: each const value can't exceed word size. - * - * @src: A pointer to array of words to set as consts. - * @dst: The target SRAM buffer to set into - * @nelements: The number of words in "src" array - * @seq: A pointer to the given IN/OUT descriptor sequence - * @seq_len: A pointer to the given IN/OUT sequence length - */ -void ssi_sram_mgr_const2sram_desc( - const u32 *src, ssi_sram_addr_t dst, - unsigned int nelement, - struct cc_hw_desc *seq, unsigned int *seq_len); - -#endif /*__SSI_SRAM_MGR_H__*/ diff --git a/drivers/staging/ccree/ssi_sysfs.c b/drivers/staging/ccree/ssi_sysfs.c deleted file mode 100644 index 5d39f15cdb59..000000000000 --- a/drivers/staging/ccree/ssi_sysfs.c +++ /dev/null @@ -1,172 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#include <linux/kernel.h> -#include "ssi_config.h" -#include "ssi_driver.h" -#include "cc_crypto_ctx.h" -#include "ssi_sysfs.h" - -#ifdef ENABLE_CC_SYSFS - -static struct ssi_drvdata *sys_get_drvdata(void); - -static ssize_t ssi_sys_regdump_show(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - struct ssi_drvdata *drvdata = sys_get_drvdata(); - u32 register_value; - int offset = 0; - - register_value = cc_ioread(drvdata, CC_REG(HOST_SIGNATURE)); - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "HOST_SIGNATURE ", DX_HOST_SIGNATURE_REG_OFFSET, register_value); - register_value = cc_ioread(drvdata, CC_REG(HOST_IRR)); - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "HOST_IRR ", DX_HOST_IRR_REG_OFFSET, register_value); - register_value = cc_ioread(drvdata, CC_REG(HOST_POWER_DOWN_EN)); - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "HOST_POWER_DOWN_EN ", DX_HOST_POWER_DOWN_EN_REG_OFFSET, register_value); - register_value = cc_ioread(drvdata, CC_REG(AXIM_MON_ERR)); - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "AXIM_MON_ERR ", DX_AXIM_MON_ERR_REG_OFFSET, register_value); - register_value = cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT)); - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "DSCRPTR_QUEUE_CONTENT", DX_DSCRPTR_QUEUE_CONTENT_REG_OFFSET, register_value); - return offset; -} - -static ssize_t ssi_sys_help_show(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - char *help_str[] = { - "cat reg_dump ", "Print several of CC register values", - }; - int i = 0, offset = 0; - - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "Usage:\n"); - for (i = 0; i < ARRAY_SIZE(help_str); i += 2) - offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s\t\t%s\n", help_str[i], help_str[i + 1]); - - return offset; -} - -/******************************************************** - * SYSFS objects * - ********************************************************/ -/* - * Structure used to create a directory - * and its attributes in sysfs. - */ -struct sys_dir { - struct kobject *sys_dir_kobj; - struct attribute_group sys_dir_attr_group; - struct attribute **sys_dir_attr_list; - u32 num_of_attrs; - struct ssi_drvdata *drvdata; /* Associated driver context */ -}; - -/* top level directory structures */ -static struct sys_dir sys_top_dir; - -/* TOP LEVEL ATTRIBUTES */ -static struct kobj_attribute ssi_sys_top_level_attrs[] = { - __ATTR(dump_regs, 0444, ssi_sys_regdump_show, NULL), - __ATTR(help, 0444, ssi_sys_help_show, NULL), -#if defined CC_CYCLE_COUNT - __ATTR(stats_host, 0664, ssi_sys_stat_host_db_show, ssi_sys_stats_host_db_clear), - __ATTR(stats_cc, 0664, ssi_sys_stat_cc_db_show, ssi_sys_stats_cc_db_clear), -#endif - -}; - -static struct ssi_drvdata *sys_get_drvdata(void) -{ - /* TODO: supporting multiple SeP devices would require avoiding - * global "top_dir" and finding associated "top_dir" by traversing - * up the tree to the kobject which matches one of the top_dir's - */ - return sys_top_dir.drvdata; -} - -static int sys_init_dir(struct sys_dir *sys_dir, struct ssi_drvdata *drvdata, - struct kobject *parent_dir_kobj, const char *dir_name, - struct kobj_attribute *attrs, u32 num_of_attrs) -{ - int i; - - memset(sys_dir, 0, sizeof(struct sys_dir)); - - sys_dir->drvdata = drvdata; - - /* initialize directory kobject */ - sys_dir->sys_dir_kobj = - kobject_create_and_add(dir_name, parent_dir_kobj); - - if (!(sys_dir->sys_dir_kobj)) - return -ENOMEM; - /* allocate memory for directory's attributes list */ - sys_dir->sys_dir_attr_list = - kcalloc(num_of_attrs + 1, sizeof(struct attribute *), - GFP_KERNEL); - - if (!(sys_dir->sys_dir_attr_list)) { - kobject_put(sys_dir->sys_dir_kobj); - return -ENOMEM; - } - - sys_dir->num_of_attrs = num_of_attrs; - - /* initialize attributes list */ - for (i = 0; i < num_of_attrs; ++i) - sys_dir->sys_dir_attr_list[i] = &attrs[i].attr; - - /* last list entry should be NULL */ - sys_dir->sys_dir_attr_list[num_of_attrs] = NULL; - - sys_dir->sys_dir_attr_group.attrs = sys_dir->sys_dir_attr_list; - - return sysfs_create_group(sys_dir->sys_dir_kobj, - &sys_dir->sys_dir_attr_group); -} - -static void sys_free_dir(struct sys_dir *sys_dir) -{ - if (!sys_dir) - return; - - kfree(sys_dir->sys_dir_attr_list); - - if (sys_dir->sys_dir_kobj) - kobject_put(sys_dir->sys_dir_kobj); -} - -int ssi_sysfs_init(struct kobject *sys_dev_obj, struct ssi_drvdata *drvdata) -{ - int retval; - struct device *dev = drvdata_to_dev(drvdata); - - dev_info(dev, "setup sysfs under %s\n", sys_dev_obj->name); - - /* Initialize top directory */ - retval = sys_init_dir(&sys_top_dir, drvdata, sys_dev_obj, "cc_info", - ssi_sys_top_level_attrs, - ARRAY_SIZE(ssi_sys_top_level_attrs)); - return retval; -} - -void ssi_sysfs_fini(void) -{ - sys_free_dir(&sys_top_dir); -} - -#endif /*ENABLE_CC_SYSFS*/ - diff --git a/drivers/staging/ccree/ssi_sysfs.h b/drivers/staging/ccree/ssi_sysfs.h deleted file mode 100644 index 44ae3d4c40b3..000000000000 --- a/drivers/staging/ccree/ssi_sysfs.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright (C) 2012-2017 ARM Limited or its affiliates. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -/* \file ssi_sysfs.h - * ARM CryptoCell sysfs APIs - */ - -#ifndef __SSI_SYSFS_H__ -#define __SSI_SYSFS_H__ - -#include <asm/timex.h> - -/* forward declaration */ -struct ssi_drvdata; - -enum stat_phase { - STAT_PHASE_0 = 0, - STAT_PHASE_1, - STAT_PHASE_2, - STAT_PHASE_3, - STAT_PHASE_4, - STAT_PHASE_5, - STAT_PHASE_6, - MAX_STAT_PHASES, -}; - -enum stat_op { - STAT_OP_TYPE_NULL = 0, - STAT_OP_TYPE_ENCODE, - STAT_OP_TYPE_DECODE, - STAT_OP_TYPE_SETKEY, - STAT_OP_TYPE_GENERIC, - MAX_STAT_OP_TYPES, -}; - -int ssi_sysfs_init(struct kobject *sys_dev_obj, struct ssi_drvdata *drvdata); -void ssi_sysfs_fini(void); -void update_host_stat(unsigned int op_type, unsigned int phase, cycles_t result); -void update_cc_stat(unsigned int op_type, unsigned int phase, unsigned int elapsed_cycles); -void display_all_stat_db(void); - -#endif /*__SSI_SYSFS_H__*/ diff --git a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c index bf3fe7c61be5..cae7e6e695b0 100644 --- a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c +++ b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c @@ -1,21 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Xilinx 'Clocking Wizard' driver * * Copyright (C) 2013 - 2014 Xilinx * * Sören Brinkmann <soren.brinkmann@xilinx.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License v2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <linux/platform_device.h> diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h index a1c1081906c5..c0bc413f7fe0 100644 --- a/drivers/staging/comedi/comedi.h +++ b/drivers/staging/comedi/comedi.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: LGPL-2.0+ /* * comedi.h * header file for COMEDI user API * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_H diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c index b455ff6714eb..f693c2c0bec3 100644 --- a/drivers/staging/comedi/comedi_buf.c +++ b/drivers/staging/comedi/comedi_buf.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_buf.c * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2002 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/vmalloc.h> diff --git a/drivers/staging/comedi/comedi_compat32.c b/drivers/staging/comedi/comedi_compat32.c index f356386d833a..97fb9388bc22 100644 --- a/drivers/staging/comedi/comedi_compat32.c +++ b/drivers/staging/comedi/comedi_compat32.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/comedi_compat32.c * 32-bit ioctl compatibility for 64-bit comedi kernel module. @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2007 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/uaccess.h> diff --git a/drivers/staging/comedi/comedi_compat32.h b/drivers/staging/comedi/comedi_compat32.h index 0127c1f98bbf..3980e6e1bd0d 100644 --- a/drivers/staging/comedi/comedi_compat32.h +++ b/drivers/staging/comedi/comedi_compat32.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/comedi_compat32.h * 32-bit ioctl compatibility for 64-bit comedi kernel module. @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2007 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_COMPAT32_H diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 491b54d986eb..ef733847eebe 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/comedi_fops.c * comedi kernel module * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/staging/comedi/comedi_pci.c b/drivers/staging/comedi/comedi_pci.c index 51e023a1c0ee..126048b03f43 100644 --- a/drivers/staging/comedi/comedi_pci.c +++ b/drivers/staging/comedi/comedi_pci.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_pci.c * Comedi PCI driver specific functions. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/comedi_pci.h b/drivers/staging/comedi/comedi_pci.h index 7dfd892c74b0..647a72441b8a 100644 --- a/drivers/staging/comedi/comedi_pci.h +++ b/drivers/staging/comedi/comedi_pci.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_pci.h * header file for Comedi PCI drivers * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_PCI_H diff --git a/drivers/staging/comedi/comedi_pcmcia.c b/drivers/staging/comedi/comedi_pcmcia.c index cd4742851c08..e16f35eae343 100644 --- a/drivers/staging/comedi/comedi_pcmcia.c +++ b/drivers/staging/comedi/comedi_pcmcia.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_pcmcia.c * Comedi PCMCIA driver specific functions. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/comedi_pcmcia.h b/drivers/staging/comedi/comedi_pcmcia.h index 9e45c7c93278..c7d37b38e730 100644 --- a/drivers/staging/comedi/comedi_pcmcia.h +++ b/drivers/staging/comedi/comedi_pcmcia.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_pcmcia.h * header file for Comedi PCMCIA drivers * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_PCMCIA_H diff --git a/drivers/staging/comedi/comedi_usb.c b/drivers/staging/comedi/comedi_usb.c index 9c946d40b894..c632c2bae722 100644 --- a/drivers/staging/comedi/comedi_usb.c +++ b/drivers/staging/comedi/comedi_usb.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_usb.c * Comedi USB driver specific functions. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/comedi_usb.h b/drivers/staging/comedi/comedi_usb.h index 132154ec792f..50287de7a239 100644 --- a/drivers/staging/comedi/comedi_usb.h +++ b/drivers/staging/comedi/comedi_usb.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_usb.h * header file for USB Comedi drivers * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_USB_H diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h index 1bb9986f865e..f3474a4ba69e 100644 --- a/drivers/staging/comedi/comedidev.h +++ b/drivers/staging/comedi/comedidev.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedidev.h * header file for kernel-only structures, variables, and constants * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDIDEV_H @@ -186,23 +177,27 @@ struct comedi_subdevice { unsigned int *chanlist; /* driver-owned chanlist (not used) */ - int (*insn_read)(struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - int (*insn_write)(struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - int (*insn_bits)(struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - int (*insn_config)(struct comedi_device *, struct comedi_subdevice *, - struct comedi_insn *, unsigned int *); - - int (*do_cmd)(struct comedi_device *, struct comedi_subdevice *); - int (*do_cmdtest)(struct comedi_device *, struct comedi_subdevice *, - struct comedi_cmd *); - int (*poll)(struct comedi_device *, struct comedi_subdevice *); - int (*cancel)(struct comedi_device *, struct comedi_subdevice *); + int (*insn_read)(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data); + int (*insn_write)(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data); + int (*insn_bits)(struct comedi_device *dev, struct comedi_subdevice *s, + struct comedi_insn *insn, unsigned int *data); + int (*insn_config)(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_insn *insn, + unsigned int *data); + + int (*do_cmd)(struct comedi_device *dev, struct comedi_subdevice *s); + int (*do_cmdtest)(struct comedi_device *dev, + struct comedi_subdevice *s, + struct comedi_cmd *cmd); + int (*poll)(struct comedi_device *dev, struct comedi_subdevice *s); + int (*cancel)(struct comedi_device *dev, struct comedi_subdevice *s); /* called when the buffer changes */ - int (*buf_change)(struct comedi_device *, struct comedi_subdevice *); + int (*buf_change)(struct comedi_device *dev, + struct comedi_subdevice *s); void (*munge)(struct comedi_device *dev, struct comedi_subdevice *s, void *data, unsigned int num_bytes, @@ -445,9 +440,9 @@ struct comedi_driver { /* public: */ const char *driver_name; struct module *module; - int (*attach)(struct comedi_device *, struct comedi_devconfig *); - void (*detach)(struct comedi_device *); - int (*auto_attach)(struct comedi_device *, unsigned long); + int (*attach)(struct comedi_device *dev, struct comedi_devconfig *it); + void (*detach)(struct comedi_device *dev); + int (*auto_attach)(struct comedi_device *dev, unsigned long context); unsigned int num_names; const char *const *board_name; int offset; diff --git a/drivers/staging/comedi/comedilib.h b/drivers/staging/comedi/comedilib.h index f9b56396e161..e98cb9752dbc 100644 --- a/drivers/staging/comedi/comedilib.h +++ b/drivers/staging/comedi/comedilib.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedilib.h * Header file for kcomedilib * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_COMEDILIB_H diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 0b43db6371c6..e618a87521a3 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * module/drivers.c * functions for manipulating drivers @@ -5,16 +6,6 @@ * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2002 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/device.h> diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c index b79d3764a8a0..3d6105b5a11b 100644 --- a/drivers/staging/comedi/drivers/8255.c +++ b/drivers/staging/comedi/drivers/8255.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/8255.c * Driver for 8255 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/8255.h b/drivers/staging/comedi/drivers/8255.h index 55a67af5152d..6cd1339ab83e 100644 --- a/drivers/staging/comedi/drivers/8255.h +++ b/drivers/staging/comedi/drivers/8255.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * module/8255.h * Header file for 8255 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _8255_H diff --git a/drivers/staging/comedi/drivers/8255_pci.c b/drivers/staging/comedi/drivers/8255_pci.c index 38c05d1ec647..9ed05f962fdb 100644 --- a/drivers/staging/comedi/drivers/8255_pci.c +++ b/drivers/staging/comedi/drivers/8255_pci.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI driver for generic PCI based 8255 digital i/o boards * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com> @@ -9,16 +10,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/addi_apci_1032.c b/drivers/staging/comedi/drivers/addi_apci_1032.c index ccd1a91290bf..560649be9d13 100644 --- a/drivers/staging/comedi/drivers/addi_apci_1032.c +++ b/drivers/staging/comedi/drivers/addi_apci_1032.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_1032.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ /* diff --git a/drivers/staging/comedi/drivers/addi_apci_1500.c b/drivers/staging/comedi/drivers/addi_apci_1500.c index 63991c49ff23..45ad4ba92f94 100644 --- a/drivers/staging/comedi/drivers/addi_apci_1500.c +++ b/drivers/staging/comedi/drivers/addi_apci_1500.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_1500.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -9,16 +10,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_apci_1516.c b/drivers/staging/comedi/drivers/addi_apci_1516.c index f1f8b1c422a7..6c8213ee1a74 100644 --- a/drivers/staging/comedi/drivers/addi_apci_1516.c +++ b/drivers/staging/comedi/drivers/addi_apci_1516.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_1516.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_apci_1564.c b/drivers/staging/comedi/drivers/addi_apci_1564.c index 9bfb79c2e5c8..10501fe6bb25 100644 --- a/drivers/staging/comedi/drivers/addi_apci_1564.c +++ b/drivers/staging/comedi/drivers/addi_apci_1564.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_1564.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -9,16 +10,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2 of the License, or (at your option) any later - * version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS - * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more - * details. */ /* diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c index c63133a12a4e..050d0b4b3209 100644 --- a/drivers/staging/comedi/drivers/addi_apci_16xx.c +++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_16xx.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c index 50f9eb25d7cb..a122f3f3f5ec 100644 --- a/drivers/staging/comedi/drivers/addi_apci_2032.c +++ b/drivers/staging/comedi/drivers/addi_apci_2032.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_2032.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_apci_2200.c b/drivers/staging/comedi/drivers/addi_apci_2200.c index 2b382a52d80d..140d1514a106 100644 --- a/drivers/staging/comedi/drivers/addi_apci_2200.c +++ b/drivers/staging/comedi/drivers/addi_apci_2200.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_2200.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c index 3630d75e36e8..d2810fdd5e63 100644 --- a/drivers/staging/comedi/drivers/addi_apci_3120.c +++ b/drivers/staging/comedi/drivers/addi_apci_3120.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_3120.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -9,16 +10,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_apci_3501.c b/drivers/staging/comedi/drivers/addi_apci_3501.c index 1fdc0f8d7e1a..a38267928e5e 100644 --- a/drivers/staging/comedi/drivers/addi_apci_3501.c +++ b/drivers/staging/comedi/drivers/addi_apci_3501.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_3501.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ /* diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c index be1f6133ff1c..55784f24e2a7 100644 --- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c +++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * addi_apci_3xxx.c * Copyright (C) 2004,2005 ADDI-DATA GmbH for the source code of this module. @@ -10,16 +11,6 @@ * Fax: +49(0)7223/9493-92 * http://www.addi-data.com * info@addi-data.com - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/addi_watchdog.c b/drivers/staging/comedi/drivers/addi_watchdog.c index 9d9853fe54a0..69b323fb869f 100644 --- a/drivers/staging/comedi/drivers/addi_watchdog.c +++ b/drivers/staging/comedi/drivers/addi_watchdog.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI driver for the watchdog subdevice found on some addi-data boards * Copyright (c) 2013 H Hartley Sweeten <hsweeten@visionengravers.com> @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c index ad7e7c4a5232..d39b4eabce8d 100644 --- a/drivers/staging/comedi/drivers/adl_pci6208.c +++ b/drivers/staging/comedi/drivers/adl_pci6208.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * adl_pci6208.c * Comedi driver for ADLink 6208 series cards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c index b0fc027cf485..d0081897fe47 100644 --- a/drivers/staging/comedi/drivers/adl_pci7x3x.c +++ b/drivers/staging/comedi/drivers/adl_pci7x3x.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI driver for the ADLINK PCI-723x/743x series boards. * Copyright (C) 2012 H Hartley Sweeten <hsweeten@visionengravers.com> @@ -9,16 +10,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c index da901c8dec0e..3022793b1bc5 100644 --- a/drivers/staging/comedi/drivers/adl_pci8164.c +++ b/drivers/staging/comedi/drivers/adl_pci8164.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/adl_pci8164.c * * Hardware comedi driver for PCI-8164 Adlink card * Copyright (C) 2004 Michel Lachine <mike@mikelachaine.ca> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c index 01d2ee931b28..f4dba6271d0d 100644 --- a/drivers/staging/comedi/drivers/adl_pci9111.c +++ b/drivers/staging/comedi/drivers/adl_pci9111.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * adl_pci9111.c * Hardware driver for PCI9111 ADLink cards: PCI-9111HR * Copyright (C) 2002-2005 Emmanuel Pacaud <emmanuel.pacaud@univ-poitiers.fr> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c index 1cc9b7ef1ff9..2528ca0ede6d 100644 --- a/drivers/staging/comedi/drivers/adl_pci9118.c +++ b/drivers/staging/comedi/drivers/adl_pci9118.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/adl_pci9118.c * diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c index 315050454c26..5d431573bcca 100644 --- a/drivers/staging/comedi/drivers/adq12b.c +++ b/drivers/staging/comedi/drivers/adq12b.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * adq12b.c * Driver for MicroAxial ADQ12-B data acquisition and control card @@ -9,16 +10,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c index 2c1b6de30da8..6a93b04f1fdf 100644 --- a/drivers/staging/comedi/drivers/adv_pci1710.c +++ b/drivers/staging/comedi/drivers/adv_pci1710.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * adv_pci1710.c * Comedi driver for Advantech PCI-1710 series boards diff --git a/drivers/staging/comedi/drivers/adv_pci1720.c b/drivers/staging/comedi/drivers/adv_pci1720.c index 4830a1c93d15..2fcd7e8e7d85 100644 --- a/drivers/staging/comedi/drivers/adv_pci1720.c +++ b/drivers/staging/comedi/drivers/adv_pci1720.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI driver for Advantech PCI-1720U * Copyright (c) 2015 H Hartley Sweeten <hsweeten@visionengravers.com> @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c index f82afd947310..771d61f87427 100644 --- a/drivers/staging/comedi/drivers/adv_pci1723.c +++ b/drivers/staging/comedi/drivers/adv_pci1723.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * adv_pci1723.c * Comedi driver for the Advantech PCI-1723 card. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adv_pci1724.c b/drivers/staging/comedi/drivers/adv_pci1724.c index bf6a8f10118c..e8ab573c839f 100644 --- a/drivers/staging/comedi/drivers/adv_pci1724.c +++ b/drivers/staging/comedi/drivers/adv_pci1724.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * adv_pci1724.c * Comedi driver for the Advantech PCI-1724U card. @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/adv_pci1760.c b/drivers/staging/comedi/drivers/adv_pci1760.c index 9f525ff7290c..f460f21efb90 100644 --- a/drivers/staging/comedi/drivers/adv_pci1760.c +++ b/drivers/staging/comedi/drivers/adv_pci1760.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI driver for the Advantech PCI-1760 * Copyright (C) 2015 H Hartley Sweeten <hsweeten@visionengravers.com> @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* @@ -69,7 +60,7 @@ #define PCI1760_CMD_SET_DO 0x01 /* Set output state */ #define PCI1760_CMD_GET_DO 0x02 /* Read output status */ #define PCI1760_CMD_GET_STATUS 0x03 /* Read current status */ -#define PCI1760_CMD_GET_FW_VER 0x0e /* Read firware version */ +#define PCI1760_CMD_GET_FW_VER 0x0e /* Read firmware version */ #define PCI1760_CMD_GET_HW_VER 0x0f /* Read hardware version */ #define PCI1760_CMD_SET_PWM_HI(x) (0x10 + (x) * 2) /* Set "hi" period */ #define PCI1760_CMD_SET_PWM_LO(x) (0x11 + (x) * 2) /* Set "lo" period */ diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c index a8186687ca2c..5fef2aef7e03 100644 --- a/drivers/staging/comedi/drivers/adv_pci_dio.c +++ b/drivers/staging/comedi/drivers/adv_pci_dio.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/adv_pci_dio.c * diff --git a/drivers/staging/comedi/drivers/aio_aio12_8.c b/drivers/staging/comedi/drivers/aio_aio12_8.c index 43a0ce5721d3..f4beda1ed640 100644 --- a/drivers/staging/comedi/drivers/aio_aio12_8.c +++ b/drivers/staging/comedi/drivers/aio_aio12_8.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * aio_aio12_8.c * Driver for Access I/O Products PC-104 AIO12-8 Analog I/O Board * Copyright (C) 2006 C&C Technologies, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c index 35b2f98f0de9..41c9c56816ef 100644 --- a/drivers/staging/comedi/drivers/aio_iiro_16.c +++ b/drivers/staging/comedi/drivers/aio_iiro_16.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * aio_iiro_16.c * Comedi driver for Access I/O Products 104-IIRO-16 board * Copyright (C) 2006 C&C Technologies, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c index f5cfa71a90c6..26e63d64ffc6 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200.c +++ b/drivers/staging/comedi/drivers/amplc_dio200.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_dio200.c * @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/amplc_dio200.h b/drivers/staging/comedi/drivers/amplc_dio200.h index 53fb86d59fc3..88c1d1063d5d 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200.h +++ b/drivers/staging/comedi/drivers/amplc_dio200.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_dio.h * @@ -8,16 +9,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef AMPLC_DIO200_H_INCLUDED diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c index f6e4e984235d..82bd41d92509 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200_common.c +++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_dio200_common.c * @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/amplc_dio200_pci.c b/drivers/staging/comedi/drivers/amplc_dio200_pci.c index 2598e6e7d47d..30d239731e0b 100644 --- a/drivers/staging/comedi/drivers/amplc_dio200_pci.c +++ b/drivers/staging/comedi/drivers/amplc_dio200_pci.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* comedi/drivers/amplc_dio200_pci.c * * Driver for Amplicon PCI215, PCI272, PCIe215, PCIe236, PCIe296. @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c index 875cc19cb969..b7dd15f5ec63 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.c +++ b/drivers/staging/comedi/drivers/amplc_pc236.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_pc236.c * Driver for Amplicon PC36AT DIO boards. @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: amplc_pc236 diff --git a/drivers/staging/comedi/drivers/amplc_pc236.h b/drivers/staging/comedi/drivers/amplc_pc236.h index 91d6d9c065b5..4b67090aab54 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236.h +++ b/drivers/staging/comedi/drivers/amplc_pc236.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_pc236.h * Header for "amplc_pc236", "amplc_pci236" and "amplc_pc236_common". @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef AMPLC_PC236_H_INCLUDED diff --git a/drivers/staging/comedi/drivers/amplc_pc236_common.c b/drivers/staging/comedi/drivers/amplc_pc236_common.c index 0c02d3245679..01b90e4eca8a 100644 --- a/drivers/staging/comedi/drivers/amplc_pc236_common.c +++ b/drivers/staging/comedi/drivers/amplc_pc236_common.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_pc236_common.c * Common support code for "amplc_pc236" and "amplc_pci236". @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c index 58b0b6b1a693..84c989f12faf 100644 --- a/drivers/staging/comedi/drivers/amplc_pc263.c +++ b/drivers/staging/comedi/drivers/amplc_pc263.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Driver for Amplicon PC263 relay board. * @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c index 4e554944bc71..657b736ef46d 100644 --- a/drivers/staging/comedi/drivers/amplc_pci224.c +++ b/drivers/staging/comedi/drivers/amplc_pci224.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_pci224.c * Driver for Amplicon PCI224 and PCI234 AO boards. @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998,2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c index 48c7890c3007..15fc7f19051a 100644 --- a/drivers/staging/comedi/drivers/amplc_pci230.c +++ b/drivers/staging/comedi/drivers/amplc_pci230.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_pci230.c * Driver for Amplicon PCI230 and PCI260 Multifunction I/O boards. @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/amplc_pci236.c b/drivers/staging/comedi/drivers/amplc_pci236.c index 31cc38b4bcad..86ea876a11be 100644 --- a/drivers/staging/comedi/drivers/amplc_pci236.c +++ b/drivers/staging/comedi/drivers/amplc_pci236.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/amplc_pci236.c * Driver for Amplicon PCI236 DIO boards. @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: amplc_pci236 diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c index 8d4069bc5716..c3efe14020a8 100644 --- a/drivers/staging/comedi/drivers/amplc_pci263.c +++ b/drivers/staging/comedi/drivers/amplc_pci263.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Driver for Amplicon PCI263 relay board. * @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/c6xdigio.c b/drivers/staging/comedi/drivers/c6xdigio.c index 8ee732571588..41cc784320a9 100644 --- a/drivers/staging/comedi/drivers/c6xdigio.c +++ b/drivers/staging/comedi/drivers/c6xdigio.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * c6xdigio.c * Hardware driver for Mechatronic Systems Inc. C6x_DIGIO DSP daughter card. @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 Dan Block - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c index 78d098f9e1f2..a5d171e71c33 100644 --- a/drivers/staging/comedi/drivers/cb_das16_cs.c +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * cb_das16_cs.c * Driver for Computer Boards PC-CARD DAS16/16. @@ -5,16 +6,6 @@ * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000, 2001, 2002 David A. Schleef <ds@schleef.org> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * PCMCIA support code for this driver is adapted from the dummy_cs.c * driver of the Linux PCMCIA Card Services package. * diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c index 3cd008acb657..8429d57087fd 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas.c +++ b/drivers/staging/comedi/drivers/cb_pcidas.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * cb_pcidas.c * Developed by Ivan Martinez and Frank Mori Hess, with valuable help from @@ -8,16 +9,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c index b761f000c1dc..b657beedd5ff 100644 --- a/drivers/staging/comedi/drivers/cb_pcidas64.c +++ b/drivers/staging/comedi/drivers/cb_pcidas64.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/cb_pcidas64.c * This is a driver for the ComputerBoards/MeasurementComputing PCI-DAS @@ -18,16 +19,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c index 987414741605..807a31e75883 100644 --- a/drivers/staging/comedi/drivers/cb_pcidda.c +++ b/drivers/staging/comedi/drivers/cb_pcidda.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/cb_pcidda.c * Driver for the ComputerBoards / MeasurementComputing PCI-DDA series. @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c index 47e38398921e..4e72a0778086 100644 --- a/drivers/staging/comedi/drivers/cb_pcimdas.c +++ b/drivers/staging/comedi/drivers/cb_pcimdas.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/cb_pcimdas.c * Comedi driver for Computer Boards PCIM-DAS1602/16 and PCIe-DAS1602/16 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c index 84ef45457c60..b33203f6a990 100644 --- a/drivers/staging/comedi/drivers/cb_pcimdda.c +++ b/drivers/staging/comedi/drivers/cb_pcimdda.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/cb_pcimdda.c * Computer Boards PCIM-DDA06-16 Comedi driver @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: cb_pcimdda diff --git a/drivers/staging/comedi/drivers/comedi_8254.c b/drivers/staging/comedi/drivers/comedi_8254.c index 0d5d56b61f60..d1d509e9add9 100644 --- a/drivers/staging/comedi/drivers/comedi_8254.c +++ b/drivers/staging/comedi/drivers/comedi_8254.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_8254.c * Generic 8254 timer/counter support @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/comedi_8254.h b/drivers/staging/comedi/drivers/comedi_8254.h index 326bd44b063e..7faa2185282e 100644 --- a/drivers/staging/comedi/drivers/comedi_8254.h +++ b/drivers/staging/comedi/drivers/comedi_8254.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_8254.h * Generic 8254 timer/counter support @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_8254_H diff --git a/drivers/staging/comedi/drivers/comedi_8255.c b/drivers/staging/comedi/drivers/comedi_8255.c index b2441efc61cc..62baa0d79302 100644 --- a/drivers/staging/comedi/drivers/comedi_8255.c +++ b/drivers/staging/comedi/drivers/comedi_8255.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_8255.c * Generic 8255 digital I/O support @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/comedi_bond.c b/drivers/staging/comedi/drivers/comedi_bond.c index 64a5ea3810d4..4392b5927a99 100644 --- a/drivers/staging/comedi/drivers/comedi_bond.c +++ b/drivers/staging/comedi/drivers/comedi_bond.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_bond.c * A Comedi driver to 'bond' or merge multiple drivers and devices as one. @@ -5,16 +6,6 @@ * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2005 Calin A. Culianu <calin@ajvar.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/comedi_isadma.c b/drivers/staging/comedi/drivers/comedi_isadma.c index 68ef9b1750be..b77dc8d5d3ff 100644 --- a/drivers/staging/comedi/drivers/comedi_isadma.c +++ b/drivers/staging/comedi/drivers/comedi_isadma.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI ISA DMA support functions * Copyright (c) 2014 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/comedi_isadma.h b/drivers/staging/comedi/drivers/comedi_isadma.h index a193d3e8d185..ccef7c9c0a4d 100644 --- a/drivers/staging/comedi/drivers/comedi_isadma.h +++ b/drivers/staging/comedi/drivers/comedi_isadma.h @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * COMEDI ISA DMA support functions * Copyright (c) 2014 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_ISADMA_H diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c index 1bf8ddc6f07c..efaa57372aeb 100644 --- a/drivers/staging/comedi/drivers/comedi_parport.c +++ b/drivers/staging/comedi/drivers/comedi_parport.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi_parport.c * Comedi driver for standard parallel port @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998,2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c index c7e8194984e5..d437af721bd8 100644 --- a/drivers/staging/comedi/drivers/comedi_test.c +++ b/drivers/staging/comedi/drivers/comedi_test.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/comedi_test.c * @@ -11,16 +12,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c index 5f848396c2f7..49be795b4971 100644 --- a/drivers/staging/comedi/drivers/contec_pci_dio.c +++ b/drivers/staging/comedi/drivers/contec_pci_dio.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/contec_pci_dio.c * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/dac02.c b/drivers/staging/comedi/drivers/dac02.c index a562df498b01..5ef8114c2c85 100644 --- a/drivers/staging/comedi/drivers/dac02.c +++ b/drivers/staging/comedi/drivers/dac02.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * dac02.c * Comedi driver for DAC02 compatible boards @@ -9,16 +10,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c index 32dd8a857b6b..03f98b0287c8 100644 --- a/drivers/staging/comedi/drivers/daqboard2000.c +++ b/drivers/staging/comedi/drivers/daqboard2000.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/daqboard2000.c * hardware driver for IOtech DAQboard/2000 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: daqboard2000 diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c index 3d8fc6ad44df..327ecf9aea30 100644 --- a/drivers/staging/comedi/drivers/das08.c +++ b/drivers/staging/comedi/drivers/das08.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/das08.c * comedi module for common DAS08 support (used by ISA/PCI/PCMCIA drivers) @@ -6,16 +7,6 @@ * Copyright (C) 2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net> * Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/das08.h b/drivers/staging/comedi/drivers/das08.h index d27044cb7158..235d32f7c817 100644 --- a/drivers/staging/comedi/drivers/das08.h +++ b/drivers/staging/comedi/drivers/das08.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * das08.h * * Header for common DAS08 support (used by ISA/PCI/PCMCIA drivers) * * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _DAS08_H diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c index 317a9b5e4a3b..223479f9ea3c 100644 --- a/drivers/staging/comedi/drivers/das08_cs.c +++ b/drivers/staging/comedi/drivers/das08_cs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for DAS008 PCMCIA boards * @@ -5,16 +6,6 @@ * Copyright (C) 2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net> * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * PCMCIA support code for this driver is adapted from the dummy_cs.c * driver of the Linux PCMCIA Card Services package. * diff --git a/drivers/staging/comedi/drivers/das08_isa.c b/drivers/staging/comedi/drivers/das08_isa.c index cdefc99b6db3..b22a45bd21d1 100644 --- a/drivers/staging/comedi/drivers/das08_isa.c +++ b/drivers/staging/comedi/drivers/das08_isa.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * das08_isa.c * comedi driver for DAS08 ISA/PC-104 boards @@ -6,16 +7,6 @@ * Copyright (C) 2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net> * Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/das08_pci.c b/drivers/staging/comedi/drivers/das08_pci.c index d8d27fa44491..7856fc13466a 100644 --- a/drivers/staging/comedi/drivers/das08_pci.c +++ b/drivers/staging/comedi/drivers/das08_pci.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * das08_pci.c * comedi driver for DAS08 PCI boards @@ -6,16 +7,6 @@ * Copyright (C) 2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2001,2002,2003 Frank Mori Hess <fmhess@users.sourceforge.net> * Copyright (C) 2004 Salvador E. Tropea <set@users.sf.net> <set@ieee.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c index ddd4aeab6365..74ff204b585d 100644 --- a/drivers/staging/comedi/drivers/das16.c +++ b/drivers/staging/comedi/drivers/das16.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * das16.c * DAS16 driver @@ -6,16 +7,6 @@ * Copyright (C) 2000 David A. Schleef <ds@schleef.org> * Copyright (C) 2000 Chris R. Baugher <baugher@enteract.com> * Copyright (C) 2001,2002 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c index bb8d6ec0632e..72f8ed2c5008 100644 --- a/drivers/staging/comedi/drivers/das16m1.c +++ b/drivers/staging/comedi/drivers/das16m1.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for CIO-DAS16/M1 * Author: Frank Mori Hess, based on code from the das16 driver. @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c index e0a34c2687a8..f16aa7e9f4f3 100644 --- a/drivers/staging/comedi/drivers/das1800.c +++ b/drivers/staging/comedi/drivers/das1800.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for Keithley DAS-1700/DAS-1800 series boards * Copyright (C) 2000 Frank Mori Hess <fmhess@users.sourceforge.net> * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c index 0fdf5e02182f..f99211ec46de 100644 --- a/drivers/staging/comedi/drivers/das6402.c +++ b/drivers/staging/comedi/drivers/das6402.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * das6402.c * Comedi driver for DAS6402 compatible boards @@ -5,16 +6,6 @@ * * Rewrite of an experimental driver by: * Copyright (C) 1999 Oystein Svendsen <svendsen@pvv.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c index fd4cb4911671..8cf09ef3012f 100644 --- a/drivers/staging/comedi/drivers/das800.c +++ b/drivers/staging/comedi/drivers/das800.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/das800.c * Driver for Keitley das800 series boards and compatibles @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: das800 diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c index 771cceb71069..75693cdde313 100644 --- a/drivers/staging/comedi/drivers/dmm32at.c +++ b/drivers/staging/comedi/drivers/dmm32at.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * dmm32at.c * Diamond Systems Diamond-MM-32-AT Comedi driver * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c index 30805797a957..a29880981d81 100644 --- a/drivers/staging/comedi/drivers/dt2801.c +++ b/drivers/staging/comedi/drivers/dt2801.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/dt2801.c * Device Driver for DataTranslation DT2801 diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c index fcd85475e429..05207a519755 100644 --- a/drivers/staging/comedi/drivers/dt2811.c +++ b/drivers/staging/comedi/drivers/dt2811.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for Data Translation DT2811 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* @@ -316,7 +307,7 @@ static int dt2811_ai_cmd(struct comedi_device *dev, static unsigned int dt2811_ns_to_timer(unsigned int *nanosec, unsigned int flags) { - unsigned long long ns = *nanosec; + unsigned long long ns; unsigned int ns_lo = COMEDI_MIN_SPEED; unsigned int ns_hi = 0; unsigned int divisor_hi = 0; diff --git a/drivers/staging/comedi/drivers/dt2814.c b/drivers/staging/comedi/drivers/dt2814.c index 09984a66dba3..d2c715737361 100644 --- a/drivers/staging/comedi/drivers/dt2814.c +++ b/drivers/staging/comedi/drivers/dt2814.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/dt2814.c * Hardware driver for Data Translation DT2814 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: dt2814 diff --git a/drivers/staging/comedi/drivers/dt2815.c b/drivers/staging/comedi/drivers/dt2815.c index ce5571971194..83026ba63d1c 100644 --- a/drivers/staging/comedi/drivers/dt2815.c +++ b/drivers/staging/comedi/drivers/dt2815.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/dt2815.c * Hardware driver for Data Translation DT2815 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: dt2815 diff --git a/drivers/staging/comedi/drivers/dt2817.c b/drivers/staging/comedi/drivers/dt2817.c index 39d2566e49bf..9babb2a5196a 100644 --- a/drivers/staging/comedi/drivers/dt2817.c +++ b/drivers/staging/comedi/drivers/dt2817.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/dt2817.c * Hardware driver for Data Translation DT2817 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: dt2817 diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c index 217a4b884689..3be927f1d3a9 100644 --- a/drivers/staging/comedi/drivers/dt282x.c +++ b/drivers/staging/comedi/drivers/dt282x.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * dt282x.c * Comedi driver for Data Translation DT2821 series * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c index 19e0b7be8495..2edf3ee91300 100644 --- a/drivers/staging/comedi/drivers/dt3000.c +++ b/drivers/staging/comedi/drivers/dt3000.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * dt3000.c * Data Translation DT3000 series driver * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c index 7ebca862ecaa..75cc9e8e5b94 100644 --- a/drivers/staging/comedi/drivers/dt9812.c +++ b/drivers/staging/comedi/drivers/dt9812.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/dt9812.c * COMEDI driver for DataTranslation DT9812 USB module @@ -5,16 +6,6 @@ * Copyright (C) 2005 Anders Blomdell <anders.blomdell@control.lth.se> * * COMEDI - Linux Control and Measurement Device Interface - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c index bab7ac9e6237..e50536731d11 100644 --- a/drivers/staging/comedi/drivers/dyna_pci10xx.c +++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/dyna_pci10xx.c * Copyright (C) 2011 Prashant Shah, pshah.mumbai@gmail.com - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c index 0f278ffdad76..41c50c7a8f59 100644 --- a/drivers/staging/comedi/drivers/fl512.c +++ b/drivers/staging/comedi/drivers/fl512.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * fl512.c * Anders Gnistrup <ex18@kalman.iau.dtu.dk> * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/gsc_hpdi.c b/drivers/staging/comedi/drivers/gsc_hpdi.c index e5b948405fd9..4bdf44d82879 100644 --- a/drivers/staging/comedi/drivers/gsc_hpdi.c +++ b/drivers/staging/comedi/drivers/gsc_hpdi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * gsc_hpdi.c * Comedi driver the General Standards Corporation @@ -8,16 +9,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c index 28cf53e48b8d..b14aaed6b525 100644 --- a/drivers/staging/comedi/drivers/icp_multi.c +++ b/drivers/staging/comedi/drivers/icp_multi.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * icp_multi.c * Comedi driver for Inova ICP_MULTI board * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2002 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c index 77e1d891f232..3eaf7c59de75 100644 --- a/drivers/staging/comedi/drivers/ii_pci20kc.c +++ b/drivers/staging/comedi/drivers/ii_pci20kc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * ii_pci20kc.c * Driver for Intelligent Instruments PCI-20001C carrier board and modules. diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c index cbff3b41bb45..201f4f96c182 100644 --- a/drivers/staging/comedi/drivers/jr3_pci.c +++ b/drivers/staging/comedi/drivers/jr3_pci.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/jr3_pci.c * hardware driver for JR3/PCI force sensor board * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2007 Anders Blomdell <anders.blomdell@control.lth.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: jr3_pci diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c index 93198abf0ee5..e612cf605700 100644 --- a/drivers/staging/comedi/drivers/ke_counter.c +++ b/drivers/staging/comedi/drivers/ke_counter.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ke_counter.c * Comedi driver for Kolter-Electronic PCI Counter 1 Card * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c index 15a53204a36a..ee53571a8969 100644 --- a/drivers/staging/comedi/drivers/me4000.c +++ b/drivers/staging/comedi/drivers/me4000.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * me4000.c * Source code for the Meilhaus ME-4000 board family. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c index c0b7a300e428..169742be17b8 100644 --- a/drivers/staging/comedi/drivers/me_daq.c +++ b/drivers/staging/comedi/drivers/me_daq.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/me_daq.c * Hardware driver for Meilhaus data acquisition cards: * ME-2000i, ME-2600i, ME-3000vm1 * * Copyright (C) 2002 Michael Hillmann <hillmann@syscongroup.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/mf6x4.c b/drivers/staging/comedi/drivers/mf6x4.c index fbdf181d8ccc..ea430237efa7 100644 --- a/drivers/staging/comedi/drivers/mf6x4.c +++ b/drivers/staging/comedi/drivers/mf6x4.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/mf6x4.c * Driver for Humusoft MF634 and MF624 Data acquisition cards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* * Driver: mf6x4 diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 05126ba4ba51..61e03ad84123 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/mite.c * Hardware driver for NI Mite PCI interface chip * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2002 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 02a627d3969d..d5e27ac25df8 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * module/mite.h * Hardware driver for NI Mite PCI interface chip * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _MITE_H_ diff --git a/drivers/staging/comedi/drivers/mpc624.c b/drivers/staging/comedi/drivers/mpc624.c index 9bda761433c2..bf3a3a08c7ab 100644 --- a/drivers/staging/comedi/drivers/mpc624.c +++ b/drivers/staging/comedi/drivers/mpc624.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * mpc624.c * Hardware driver for a Micro/sys inc. MPC-624 PC/104 board * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c index b5a26f7b4332..c85c9ab3655f 100644 --- a/drivers/staging/comedi/drivers/multiq3.c +++ b/drivers/staging/comedi/drivers/multiq3.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * multiq3.c * Hardware driver for Quanser Consulting MultiQ-3 board * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c index 84c62e256094..4d1eccb5041d 100644 --- a/drivers/staging/comedi/drivers/ni_6527.c +++ b/drivers/staging/comedi/drivers/ni_6527.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ni_6527.c * Comedi driver for National Instruments PCI-6527 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_65xx.c b/drivers/staging/comedi/drivers/ni_65xx.c index 07f38e385469..996074e471d3 100644 --- a/drivers/staging/comedi/drivers/ni_65xx.c +++ b/drivers/staging/comedi/drivers/ni_65xx.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ni_65xx.c * Comedi driver for National Instruments PCI-65xx static dio boards @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c index 6aa755ad3953..e521ed9d0887 100644 --- a/drivers/staging/comedi/drivers/ni_660x.c +++ b/drivers/staging/comedi/drivers/ni_660x.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Hardware driver for NI 660x devices - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c index 1d3ff60efcb8..4e4ae31c8d0b 100644 --- a/drivers/staging/comedi/drivers/ni_670x.c +++ b/drivers/staging/comedi/drivers/ni_670x.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for NI 670x devices * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c index c69cd676f357..76e8d047f71e 100644 --- a/drivers/staging/comedi/drivers/ni_at_a2150.c +++ b/drivers/staging/comedi/drivers/ni_at_a2150.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for National Instruments AT-A2150 boards * Copyright (C) 2001, 2002 Frank Mori Hess <fmhess@users.sourceforge.net> * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c index 158fa29374fc..aad0b295ee2b 100644 --- a/drivers/staging/comedi/drivers/ni_at_ao.c +++ b/drivers/staging/comedi/drivers/ni_at_ao.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ni_at_ao.c * Driver for NI AT-AO-6/10 boards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000,2002 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_atmio.c b/drivers/staging/comedi/drivers/ni_atmio.c index ae6ed96d7874..b9e9ab548c4b 100644 --- a/drivers/staging/comedi/drivers/ni_atmio.c +++ b/drivers/staging/comedi/drivers/ni_atmio.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for NI AT-MIO E series cards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c index fb59b0ffbba6..68ad9676f962 100644 --- a/drivers/staging/comedi/drivers/ni_atmio16d.c +++ b/drivers/staging/comedi/drivers/ni_atmio16d.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for National Instruments AT-MIO16D board * Copyright (C) 2000 Chris R. Baugher <baugher@enteract.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c index 8f6396edd21c..b9e525b9beb9 100644 --- a/drivers/staging/comedi/drivers/ni_daq_700.c +++ b/drivers/staging/comedi/drivers/ni_daq_700.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/ni_daq_700.c * Driver for DAQCard-700 DIO/AI @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c index 733d3fbafa4d..44fb65afc218 100644 --- a/drivers/staging/comedi/drivers/ni_daq_dio24.c +++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for National Instruments PCMCIA DAQ-Card DIO-24 * Copyright (C) 2002 Daniel Vecino Castel <dvecino@able.es> @@ -7,16 +8,6 @@ * The initial developer of the pcmcia dummy_cs.c code is David A. Hinds * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c index 51e5e942b442..c6cf37ccbc92 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.c +++ b/drivers/staging/comedi/drivers/ni_labpc.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/ni_labpc.c * Driver for National Instruments Lab-PC series boards and compatibles * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_labpc.h b/drivers/staging/comedi/drivers/ni_labpc.h index c2edadc7b3c6..f685047efb67 100644 --- a/drivers/staging/comedi/drivers/ni_labpc.h +++ b/drivers/staging/comedi/drivers/ni_labpc.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Header for ni_labpc ISA/PCMCIA/PCI drivers * * Copyright (C) 2003 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _NI_LABPC_H diff --git a/drivers/staging/comedi/drivers/ni_labpc_common.c b/drivers/staging/comedi/drivers/ni_labpc_common.c index b0dfb8eed16d..7fa2d39562db 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_common.c +++ b/drivers/staging/comedi/drivers/ni_labpc_common.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/ni_labpc_common.c * * Common support code for "ni_labpc", "ni_labpc_pci" and "ni_labpc_cs". * * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c index 3d4d0b9ad4e1..4f7e2fe21254 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_cs.c +++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Driver for National Instruments daqcard-1200 boards * Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net> @@ -7,16 +8,6 @@ * The initial developer of the pcmcia dummy_cs.c code is David A. Hinds * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds * are Copyright (C) 1999 David A. Hinds. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.c b/drivers/staging/comedi/drivers/ni_labpc_isadma.c index 29dbdf5ec25d..5657736a9408 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_isadma.c +++ b/drivers/staging/comedi/drivers/ni_labpc_isadma.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/ni_labpc_isadma.c * ISA DMA support for National Instruments Lab-PC series boards and @@ -5,16 +6,6 @@ * * Extracted from ni_labpc.c: * Copyright (C) 2001-2003 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/drivers/ni_labpc_pci.c b/drivers/staging/comedi/drivers/ni_labpc_pci.c index cac089193121..d7d5a7973558 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_pci.c +++ b/drivers/staging/comedi/drivers/ni_labpc_pci.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/ni_labpc_pci.c * Driver for National Instruments Lab-PC PCI-1200 * Copyright (C) 2001, 2002, 2003 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c index 398347fedc47..5d610af6799f 100644 --- a/drivers/staging/comedi/drivers/ni_mio_common.c +++ b/drivers/staging/comedi/drivers/ni_mio_common.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Hardware driver for DAQ-STC based boards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2001 David A. Schleef <ds@schleef.org> * Copyright (C) 2002-2006 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c index 21f823179356..4f37b4e58f09 100644 --- a/drivers/staging/comedi/drivers/ni_mio_cs.c +++ b/drivers/staging/comedi/drivers/ni_mio_cs.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for NI PCMCIA MIO E series cards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c index b27345abebe1..6692af5ff79b 100644 --- a/drivers/staging/comedi/drivers/ni_pcidio.c +++ b/drivers/staging/comedi/drivers/ni_pcidio.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for National Instruments PCI-DIO-32HS * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999,2002 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c index 3a96913c025e..f9e466d18b3f 100644 --- a/drivers/staging/comedi/drivers/ni_pcimio.c +++ b/drivers/staging/comedi/drivers/ni_pcimio.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Comedi driver for NI PCI-MIO E series cards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h index 61138e86a455..cb9d4c3a1926 100644 --- a/drivers/staging/comedi/drivers/ni_stc.h +++ b/drivers/staging/comedi/drivers/ni_stc.h @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Register descriptions for NI DAQ-STC chip * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998-9 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_tio.c b/drivers/staging/comedi/drivers/ni_tio.c index 15cb4088467b..ef919b21b7d9 100644 --- a/drivers/staging/comedi/drivers/ni_tio.c +++ b/drivers/staging/comedi/drivers/ni_tio.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Support for NI general purpose counters * * Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_tio.h b/drivers/staging/comedi/drivers/ni_tio.h index 2012033414d3..23221cead8ca 100644 --- a/drivers/staging/comedi/drivers/ni_tio.h +++ b/drivers/staging/comedi/drivers/ni_tio.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Header file for NI general purpose counter support code (ni_tio.c) * * COMEDI - Linux Control and Measurement Device Interface - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_NI_TIO_H diff --git a/drivers/staging/comedi/drivers/ni_tio_internal.h b/drivers/staging/comedi/drivers/ni_tio_internal.h index 4e024eb5656b..f4d99d78208a 100644 --- a/drivers/staging/comedi/drivers/ni_tio_internal.h +++ b/drivers/staging/comedi/drivers/ni_tio_internal.h @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Header file for NI general purpose counter support code (ni_tio.c and * ni_tiocmd.c) * * COMEDI - Linux Control and Measurement Device Interface - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _COMEDI_NI_TIO_INTERNAL_H diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c b/drivers/staging/comedi/drivers/ni_tiocmd.c index 9007c57544bf..050bee0b9515 100644 --- a/drivers/staging/comedi/drivers/ni_tiocmd.c +++ b/drivers/staging/comedi/drivers/ni_tiocmd.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Command support for NI general purpose counters * * Copyright (C) 2006 Frank Mori Hess <fmhess@users.sourceforge.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/ni_usb6501.c b/drivers/staging/comedi/drivers/ni_usb6501.c index 9a0a96329a55..808ed92ed66f 100644 --- a/drivers/staging/comedi/drivers/ni_usb6501.c +++ b/drivers/staging/comedi/drivers/ni_usb6501.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/ni_usb6501.c * Comedi driver for National Instruments USB-6501 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2014 Luca Ellero <luca.ellero@brickedbrain.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c index 3774daa9d661..a5937206bf1c 100644 --- a/drivers/staging/comedi/drivers/pcl711.c +++ b/drivers/staging/comedi/drivers/pcl711.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * pcl711.c * Comedi driver for PC-LabCard PCL-711 and AdSys ACL-8112 and compatibles @@ -7,16 +8,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/pcl724.c b/drivers/staging/comedi/drivers/pcl724.c index 74b07e1744c7..9c174f1f2fcf 100644 --- a/drivers/staging/comedi/drivers/pcl724.c +++ b/drivers/staging/comedi/drivers/pcl724.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * pcl724.c * Comedi driver for 8255 based ISA and PC/104 DIO boards diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c index 256850ccb6fa..0963d85873a9 100644 --- a/drivers/staging/comedi/drivers/pcl726.c +++ b/drivers/staging/comedi/drivers/pcl726.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * pcl726.c * Comedi driver for 6/12-Channel D/A Output and DIO cards * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c index ce958eef2a61..3d1e9150e5b5 100644 --- a/drivers/staging/comedi/drivers/pcl730.c +++ b/drivers/staging/comedi/drivers/pcl730.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/pcl730.c * Driver for Advantech PCL-730 and clones diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c index 9c75065dd26a..aefc1b849cf7 100644 --- a/drivers/staging/comedi/drivers/pcl812.c +++ b/drivers/staging/comedi/drivers/pcl812.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/pcl812.c * diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c index c00a71f538ef..d722079f3327 100644 --- a/drivers/staging/comedi/drivers/pcl816.c +++ b/drivers/staging/comedi/drivers/pcl816.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * pcl816.c * Comedi driver for Advantech PCL-816 cards diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c index 5b5df0596ad9..eebb49751713 100644 --- a/drivers/staging/comedi/drivers/pcl818.c +++ b/drivers/staging/comedi/drivers/pcl818.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * comedi/drivers/pcl818.c * diff --git a/drivers/staging/comedi/drivers/pcm3724.c b/drivers/staging/comedi/drivers/pcm3724.c index 588ae5ecec66..5779e005c0cb 100644 --- a/drivers/staging/comedi/drivers/pcm3724.c +++ b/drivers/staging/comedi/drivers/pcm3724.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * pcm3724.c * Comedi driver for Advantech PCM-3724 Digital I/O board diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c index 12f94fe82f5b..fe5449bb1716 100644 --- a/drivers/staging/comedi/drivers/pcmad.c +++ b/drivers/staging/comedi/drivers/pcmad.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * pcmad.c * Hardware driver for Winsystems PCM-A/D12 and PCM-A/D16 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000,2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/pcmda12.c b/drivers/staging/comedi/drivers/pcmda12.c index d86c5e2cd0c7..33e463b193a1 100644 --- a/drivers/staging/comedi/drivers/pcmda12.c +++ b/drivers/staging/comedi/drivers/pcmda12.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * pcmda12.c * Driver for Winsystems PC-104 based PCM-D/A-12 8-channel AO board. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2006 Calin A. Culianu <calin@ajvar.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c index 70ad497dd20b..72af1776f785 100644 --- a/drivers/staging/comedi/drivers/pcmmio.c +++ b/drivers/staging/comedi/drivers/pcmmio.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * pcmmio.c * Driver for Winsystems PC-104 based multifunction IO board. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2007 Calin A. Culianu <calin@ajvar.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c index 8ad64f2625fe..743fb226e2e4 100644 --- a/drivers/staging/comedi/drivers/pcmuio.c +++ b/drivers/staging/comedi/drivers/pcmuio.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * pcmuio.c * Comedi driver for Winsystems PC-104 based 48/96-channel DIO boards. * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2006 Calin A. Culianu <calin@ajvar.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/plx9052.h b/drivers/staging/comedi/drivers/plx9052.h index 2892e6528967..7950d1f57db6 100644 --- a/drivers/staging/comedi/drivers/plx9052.h +++ b/drivers/staging/comedi/drivers/plx9052.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Definitions for the PLX-9052 PCI interface chip * @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _PLX9052_H_ diff --git a/drivers/staging/comedi/drivers/plx9080.h b/drivers/staging/comedi/drivers/plx9080.h index e23e63a097b5..469a9573acdc 100644 --- a/drivers/staging/comedi/drivers/plx9080.h +++ b/drivers/staging/comedi/drivers/plx9080.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * plx9080.h * @@ -9,11 +10,6 @@ * Written by Krzysztof Halasa <khc@rgstudio.com.pl> * * Portions (C) SBE Inc., used by permission. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #ifndef __COMEDI_PLX9080_H diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c index e00e9c6268ae..bb400e08f0bc 100644 --- a/drivers/staging/comedi/drivers/rtd520.c +++ b/drivers/staging/comedi/drivers/rtd520.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/rtd520.c * Comedi driver for Real Time Devices (RTD) PCI4520/DM7520 * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2001 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c index cd61d2645af4..f7c320c89ee6 100644 --- a/drivers/staging/comedi/drivers/rti800.c +++ b/drivers/staging/comedi/drivers/rti800.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/rti800.c * Hardware driver for Analog Devices RTI-800/815 board * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/rti802.c b/drivers/staging/comedi/drivers/rti802.c index 6db58fcfd496..c6cf92bfff73 100644 --- a/drivers/staging/comedi/drivers/rti802.c +++ b/drivers/staging/comedi/drivers/rti802.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * rti802.c * Comedi driver for Analog Devices RTI-802 board * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1999 Anders Blomdell <anders.blomdell@control.lth.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c index e226275972c0..5d567ae78f28 100644 --- a/drivers/staging/comedi/drivers/s526.c +++ b/drivers/staging/comedi/drivers/s526.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * s526.c * Sensoray s526 Comedi driver * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index c906c9a5d944..0b3cfe934e14 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/s626.c * Sensoray s626 Comedi driver @@ -7,16 +8,6 @@ * * Based on Sensoray Model 626 Linux driver Version 0.2 * Copyright (C) 2002-2004 Sensoray Co., Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* @@ -1385,8 +1376,7 @@ static void s626_reset_adc(struct comedi_device *dev, u8 *ppl) jmp_adrs = (u32)devpriv->rps_buf.physical_base + (u32)((unsigned long)rps - - (unsigned long)devpriv-> - rps_buf.logical_base); + (unsigned long)devpriv->rps_buf.logical_base); for (i = 0; i < (10 * S626_RPSCLK_PER_US / 2); i++) { jmp_adrs += 8; /* Repeat to implement time delay: */ /* Jump to next RPS instruction. */ @@ -1903,9 +1893,9 @@ static int s626_ai_cmdtest(struct comedi_device *dev, if (cmd->scan_begin_src == TRIG_TIMER) { arg = cmd->convert_arg * cmd->scan_end_arg; - err |= comedi_check_trigger_arg_min(&cmd-> - scan_begin_arg, - arg); + err |= comedi_check_trigger_arg_min( + &cmd->scan_begin_arg, + arg); } } diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h index 4cef45263267..4bdc4fba736f 100644 --- a/drivers/staging/comedi/drivers/s626.h +++ b/drivers/staging/comedi/drivers/s626.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/drivers/s626.h * Sensoray s626 Comedi driver, header file @@ -7,16 +8,6 @@ * * Based on Sensoray Model 626 Linux driver Version 0.2 * Copyright (C) 2002-2004 Sensoray Co., Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef S626_H_INCLUDED diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c index a557be8a5076..ab69eeb2c1f1 100644 --- a/drivers/staging/comedi/drivers/serial2002.c +++ b/drivers/staging/comedi/drivers/serial2002.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * serial2002.c * Comedi driver for serial connected hardware * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2002 Anders Blomdell <anders.blomdell@control.lth.se> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* @@ -107,6 +98,7 @@ static long serial2002_tty_ioctl(struct file *f, unsigned int op, static int serial2002_tty_write(struct file *f, unsigned char *buf, int count) { loff_t pos = 0; + return kernel_write(f, buf, count, &pos); } diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c index f9f634fd53cf..0628060e42ca 100644 --- a/drivers/staging/comedi/drivers/ssv_dnp.c +++ b/drivers/staging/comedi/drivers/ssv_dnp.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * ssv_dnp.c * generic comedi driver for SSV Embedded Systems' DIL/Net-PCs @@ -5,16 +6,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c index f4f05d29d30d..de177418190f 100644 --- a/drivers/staging/comedi/drivers/usbdux.c +++ b/drivers/staging/comedi/drivers/usbdux.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * usbdux.c * Copyright (C) 2003-2014 Bernd Porr, mail@berndporr.me.uk - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* @@ -809,7 +800,6 @@ static int usbdux_ao_insn_write(struct comedi_device *dev, { struct usbdux_private *devpriv = dev->private; unsigned int chan = CR_CHAN(insn->chanspec); - unsigned int val = s->readback[chan]; __le16 *p = (__le16 *)&devpriv->dux_commands[2]; int ret = -EBUSY; int i; @@ -825,7 +815,7 @@ static int usbdux_ao_insn_write(struct comedi_device *dev, devpriv->dux_commands[4] = chan << 6; for (i = 0; i < insn->n; i++) { - val = data[i]; + unsigned int val = data[i]; /* one 16 bit value */ *p = cpu_to_le16(val); diff --git a/drivers/staging/comedi/drivers/usbduxfast.c b/drivers/staging/comedi/drivers/usbduxfast.c index 608403c7586b..e18c0723b760 100644 --- a/drivers/staging/comedi/drivers/usbduxfast.c +++ b/drivers/staging/comedi/drivers/usbduxfast.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2004-2014 Bernd Porr, mail@berndporr.me.uk - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c index 456e9f13becb..af5605a875e2 100644 --- a/drivers/staging/comedi/drivers/usbduxsigma.c +++ b/drivers/staging/comedi/drivers/usbduxsigma.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * usbduxsigma.c * Copyright (C) 2011-2015 Bernd Porr, mail@berndporr.me.uk - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c index a004aed0147a..6234b649d887 100644 --- a/drivers/staging/comedi/drivers/vmk80xx.c +++ b/drivers/staging/comedi/drivers/vmk80xx.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * vmk80xx.c * Velleman USB Board Low-Level Driver @@ -6,16 +7,6 @@ * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c index 55d43c076b1c..df9bba1b69ed 100644 --- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c +++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * kcomedilib/kcomedilib.c * a comedlib interface for kernel modules * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/comedi/proc.c b/drivers/staging/comedi/proc.c index 2644dd4d6143..50d38938ac6f 100644 --- a/drivers/staging/comedi/proc.c +++ b/drivers/staging/comedi/proc.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * /proc interface for comedi * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1998 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ /* diff --git a/drivers/staging/comedi/range.c b/drivers/staging/comedi/range.c index ce3a58a7a171..89d599877445 100644 --- a/drivers/staging/comedi/range.c +++ b/drivers/staging/comedi/range.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * comedi/range.c * comedi routines for voltage ranges * * COMEDI - Linux Control and Measurement Device Interface * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/uaccess.h> diff --git a/drivers/staging/dgnc/Makefile b/drivers/staging/dgnc/Makefile index 40ff0d007695..49633042fcc9 100644 --- a/drivers/staging/dgnc/Makefile +++ b/drivers/staging/dgnc/Makefile @@ -1,5 +1,4 @@ obj-$(CONFIG_DGNC) += dgnc.o dgnc-objs := dgnc_cls.o dgnc_driver.o\ - dgnc_mgmt.o dgnc_neo.o\ - dgnc_tty.o dgnc_utils.o + dgnc_tty.o diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c index 9639035fddd1..7e6cbfe4e4ee 100644 --- a/drivers/staging/dgnc/dgnc_cls.c +++ b/drivers/staging/dgnc/dgnc_cls.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ #include <linux/kernel.h> @@ -397,7 +388,7 @@ static void cls_assert_modem_signals(struct channel_t *ch) writeb(out, &ch->ch_cls_uart->mcr); /* Give time for the UART to actually drop the signals */ - udelay(10); + usleep_range(10, 20); } static void cls_copy_data_from_queue_to_uart(struct channel_t *ch) @@ -1123,30 +1114,6 @@ static void cls_send_immediate_char(struct channel_t *ch, unsigned char c) writeb(c, &ch->ch_cls_uart->txrx); } -static void cls_vpd(struct dgnc_board *brd) -{ - ulong vpdbase; /* Start of io base of the card */ - u8 __iomem *re_map_vpdbase;/* Remapped memory of the card */ - int i = 0; - - vpdbase = pci_resource_start(brd->pdev, 3); - if (!vpdbase) - return; - - re_map_vpdbase = ioremap(vpdbase, 0x400); - - if (!re_map_vpdbase) - return; - - for (i = 0; i < 0x40; i++) { - brd->vpd[i] = readb(re_map_vpdbase + i); - pr_info("%x ", brd->vpd[i]); - } - pr_info("\n"); - - iounmap(re_map_vpdbase); -} - struct board_ops dgnc_cls_ops = { .tasklet = cls_tasklet, .intr = cls_intr, @@ -1154,7 +1121,6 @@ struct board_ops dgnc_cls_ops = { .uart_off = cls_uart_off, .drain = cls_drain, .param = cls_param, - .vpd = cls_vpd, .assert_modem_signals = cls_assert_modem_signals, .flush_uart_write = cls_flush_uart_write, .flush_uart_read = cls_flush_uart_read, diff --git a/drivers/staging/dgnc/dgnc_cls.h b/drivers/staging/dgnc/dgnc_cls.h index 9dfa9682a897..d31508542261 100644 --- a/drivers/staging/dgnc/dgnc_cls.h +++ b/drivers/staging/dgnc/dgnc_cls.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ #ifndef _DGNC_CLS_H diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c index d9bf5da1b8e5..5d8c2d995dcc 100644 --- a/drivers/staging/dgnc/dgnc_driver.c +++ b/drivers/staging/dgnc/dgnc_driver.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ #include <linux/kernel.h> @@ -19,37 +10,34 @@ #include <linux/slab.h> #include <linux/sched.h> #include "dgnc_driver.h" -#include "dgnc_pci.h" -#include "dgnc_mgmt.h" #include "dgnc_tty.h" #include "dgnc_cls.h" -#include "dgnc_neo.h" MODULE_LICENSE("GPL"); MODULE_AUTHOR("Digi International, http://www.digi.com"); MODULE_DESCRIPTION("Driver for the Digi International Neo and Classic PCI based product line"); MODULE_SUPPORTED_DEVICE("dgnc"); -static const struct file_operations dgnc_board_fops = { - .owner = THIS_MODULE, - .unlocked_ioctl = dgnc_mgmt_ioctl, - .open = dgnc_mgmt_open, - .release = dgnc_mgmt_close -}; - -uint dgnc_num_boards; +static unsigned int dgnc_num_boards; struct dgnc_board *dgnc_board[MAXBOARDS]; -DEFINE_SPINLOCK(dgnc_global_lock); -DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */ -uint dgnc_major; -int dgnc_poll_tick = 20; /* Poll interval - 20 ms */ - -static struct class *dgnc_class; +static DEFINE_SPINLOCK(dgnc_poll_lock); /* Poll scheduling lock */ +static int dgnc_poll_tick = 20; /* Poll interval - 20 ms */ static ulong dgnc_poll_time; /* Time of next poll */ static uint dgnc_poll_stop; /* Used to tell poller to stop */ static struct timer_list dgnc_poll_timer; +#define DIGI_VID 0x114F +#define PCI_DEVICE_CLASSIC_4_DID 0x0028 +#define PCI_DEVICE_CLASSIC_8_DID 0x0029 +#define PCI_DEVICE_CLASSIC_4_422_DID 0x00D0 +#define PCI_DEVICE_CLASSIC_8_422_DID 0x00D1 + +#define PCI_DEVICE_CLASSIC_4_PCI_NAME "ClassicBoard 4 PCI" +#define PCI_DEVICE_CLASSIC_8_PCI_NAME "ClassicBoard 8 PCI" +#define PCI_DEVICE_CLASSIC_4_422_PCI_NAME "ClassicBoard 4 422 PCI" +#define PCI_DEVICE_CLASSIC_8_422_PCI_NAME "ClassicBoard 8 422 PCI" + static const struct pci_device_id dgnc_pci_tbl[] = { {PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_DID), .driver_data = 0}, {PCI_DEVICE(DIGI_VID, PCI_DEVICE_CLASSIC_4_422_DID), .driver_data = 1}, @@ -70,19 +58,6 @@ static const struct board_id dgnc_ids[] = { { PCI_DEVICE_CLASSIC_4_422_PCI_NAME, 4, 0 }, { PCI_DEVICE_CLASSIC_8_PCI_NAME, 8, 0 }, { PCI_DEVICE_CLASSIC_8_422_PCI_NAME, 8, 0 }, - { PCI_DEVICE_NEO_4_PCI_NAME, 4, 0 }, - { PCI_DEVICE_NEO_8_PCI_NAME, 8, 0 }, - { PCI_DEVICE_NEO_2DB9_PCI_NAME, 2, 0 }, - { PCI_DEVICE_NEO_2DB9PRI_PCI_NAME, 2, 0 }, - { PCI_DEVICE_NEO_2RJ45_PCI_NAME, 2, 0 }, - { PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME, 2, 0 }, - { PCI_DEVICE_NEO_1_422_PCI_NAME, 1, 0 }, - { PCI_DEVICE_NEO_1_422_485_PCI_NAME, 1, 0 }, - { PCI_DEVICE_NEO_2_422_485_PCI_NAME, 2, 0 }, - { PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME, 8, 1 }, - { PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME, 4, 1 }, - { PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME, 4, 1 }, - { PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME, 8, 1 }, { NULL, 0, 0 } }; @@ -101,7 +76,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id) { struct dgnc_board *brd; unsigned int pci_irq; - int i = 0; int rc = 0; brd = kzalloc(sizeof(*brd), GFP_KERNEL); @@ -110,16 +84,10 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id) /* store the info for the board we've found */ brd->boardnum = dgnc_num_boards; - brd->vendor = dgnc_pci_tbl[id].vendor; brd->device = dgnc_pci_tbl[id].device; brd->pdev = pdev; - brd->pci_bus = pdev->bus->number; - brd->pci_slot = PCI_SLOT(pdev->devfn); brd->name = dgnc_ids[id].name; brd->maxports = dgnc_ids[id].maxports; - if (dgnc_ids[i].is_pci_express) - brd->bd_flags |= BD_IS_PCI_EXPRESS; - brd->dpastatus = BD_NOFEP; init_waitqueue_head(&brd->state_wait); spin_lock_init(&brd->bd_lock); @@ -127,11 +95,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id) brd->state = BOARD_FOUND; - /* store which card & revision we have */ - pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &brd->subvendor); - pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &brd->subdevice); - pci_read_config_byte(pdev, PCI_REVISION_ID, &brd->rev); - pci_irq = pdev->irq; brd->irq = pci_irq; @@ -140,9 +103,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id) case PCI_DEVICE_CLASSIC_8_DID: case PCI_DEVICE_CLASSIC_4_422_DID: case PCI_DEVICE_CLASSIC_8_422_DID: - - brd->dpatype = T_CLASSIC | T_PCIBUS; - /* * For PCI ClassicBoards * PCI Local Address (i.e. "resource" number) space @@ -182,9 +142,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id) if (rc < 0) goto failed; - /* Get and store the board VPD, if it exists */ - brd->bd_ops->vpd(brd); - /* * Enable Local Interrupt 1 (0x1), * Local Interrupt 1 Polarity Active high (0x2), @@ -194,55 +151,6 @@ static struct dgnc_board *dgnc_found_board(struct pci_dev *pdev, int id) break; - case PCI_DEVICE_NEO_4_DID: - case PCI_DEVICE_NEO_8_DID: - case PCI_DEVICE_NEO_2DB9_DID: - case PCI_DEVICE_NEO_2DB9PRI_DID: - case PCI_DEVICE_NEO_2RJ45_DID: - case PCI_DEVICE_NEO_2RJ45PRI_DID: - case PCI_DEVICE_NEO_1_422_DID: - case PCI_DEVICE_NEO_1_422_485_DID: - case PCI_DEVICE_NEO_2_422_485_DID: - case PCI_DEVICE_NEO_EXPRESS_8_DID: - case PCI_DEVICE_NEO_EXPRESS_4_DID: - case PCI_DEVICE_NEO_EXPRESS_4RJ45_DID: - case PCI_DEVICE_NEO_EXPRESS_8RJ45_DID: - - /* - * This chip is set up 100% when we get to it. - * No need to enable global interrupts or anything. - */ - if (brd->bd_flags & BD_IS_PCI_EXPRESS) - brd->dpatype = T_NEO_EXPRESS | T_PCIBUS; - else - brd->dpatype = T_NEO | T_PCIBUS; - - brd->membase = pci_resource_start(pdev, 0); - brd->membase_end = pci_resource_end(pdev, 0); - - if (brd->membase & 1) - brd->membase &= ~3; - else - brd->membase &= ~15; - - brd->bd_ops = &dgnc_neo_ops; - - brd->bd_uart_offset = 0x200; - brd->bd_dividend = 921600; - - rc = dgnc_do_remap(brd); - - if (rc < 0) - goto failed; - - /* Read and store the dvid after remapping */ - brd->dvid = readb(brd->re_map_membase + 0x8D); - - /* Get and store the board VPD, if it exists */ - brd->bd_ops->vpd(brd); - - break; - default: dev_err(&brd->pdev->dev, "Didn't find any compatible Neo/Classic PCI boards.\n"); @@ -273,7 +181,6 @@ static int dgnc_request_irq(struct dgnc_board *brd) dev_err(&brd->pdev->dev, "Failed to hook IRQ %d\n", brd->irq); brd->state = BOARD_FAILED; - brd->dpastatus = BD_NOFEP; return -ENODEV; } } @@ -364,7 +271,6 @@ static int dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) } brd->state = BOARD_READY; - brd->dpastatus = BD_RUNNING; dgnc_board[dgnc_num_boards++] = brd; @@ -388,32 +294,7 @@ static struct pci_driver dgnc_driver = { static int dgnc_start(void) { - int rc = 0; unsigned long flags; - struct device *dev; - - rc = register_chrdev(0, "dgnc", &dgnc_board_fops); - if (rc < 0) { - pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc); - return rc; - } - dgnc_major = rc; - - dgnc_class = class_create(THIS_MODULE, "dgnc_mgmt"); - if (IS_ERR(dgnc_class)) { - rc = PTR_ERR(dgnc_class); - pr_err(DRVSTR ": Can't create dgnc_mgmt class (%d)\n", rc); - goto failed_class; - } - - dev = device_create(dgnc_class, NULL, - MKDEV(dgnc_major, 0), - NULL, "dgnc_mgmt"); - if (IS_ERR(dev)) { - rc = PTR_ERR(dev); - pr_err(DRVSTR ": Can't create device (%d)\n", rc); - goto failed_device; - } /* Start the poller */ spin_lock_irqsave(&dgnc_poll_lock, flags); @@ -425,13 +306,6 @@ static int dgnc_start(void) add_timer(&dgnc_poll_timer); return 0; - -failed_device: - class_destroy(dgnc_class); -failed_class: - unregister_chrdev(dgnc_major, "dgnc"); - - return rc; } /* Free all the memory associated with a board */ @@ -495,10 +369,6 @@ static void cleanup(void) /* Turn off poller right away. */ del_timer_sync(&dgnc_poll_timer); - device_destroy(dgnc_class, MKDEV(dgnc_major, 0)); - class_destroy(dgnc_class); - unregister_chrdev(dgnc_major, "dgnc"); - for (i = 0; i < dgnc_num_boards; ++i) { dgnc_cleanup_tty(dgnc_board[i]); dgnc_cleanup_board(dgnc_board[i]); diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h index efdb11a5e27f..b4d9f714c60a 100644 --- a/drivers/staging/dgnc/dgnc_driver.h +++ b/drivers/staging/dgnc/dgnc_driver.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ #ifndef _DGNC_DRIVER_H @@ -82,42 +73,27 @@ struct board_ops { void (*uart_off)(struct channel_t *ch); int (*drain)(struct tty_struct *tty, uint seconds); void (*param)(struct tty_struct *tty); - void (*vpd)(struct dgnc_board *brd); void (*assert_modem_signals)(struct channel_t *ch); void (*flush_uart_write)(struct channel_t *ch); void (*flush_uart_read)(struct channel_t *ch); void (*disable_receiver)(struct channel_t *ch); void (*enable_receiver)(struct channel_t *ch); - void (*send_break)(struct channel_t *ch, int); + void (*send_break)(struct channel_t *ch, int msec); void (*send_start_character)(struct channel_t *ch); void (*send_stop_character)(struct channel_t *ch); void (*copy_data_from_queue_to_uart)(struct channel_t *ch); uint (*get_uart_bytes_left)(struct channel_t *ch); - void (*send_immediate_char)(struct channel_t *ch, unsigned char); + void (*send_immediate_char)(struct channel_t *ch, unsigned char c); }; -/* Device flag definitions for bd_flags. */ - -#define BD_IS_PCI_EXPRESS 0x0001 /* Is a PCI Express board */ - /** * struct dgnc_board - Per board information. * @boardnum: Board number (0 - 32). * * @name: Product name. * @pdev: Pointer to the pci_dev structure. - * @bd_flags: Board flags. - * @vendor: PCI vendor ID. * @device: PCI device ID. - * @subvendor: PCI subsystem vendor ID. - * @subdevice: PCI subsystem device ID. - * @rev: PCI revision ID. - * @pci_bus: PCI bus value. - * @pci_slot: PCI slot value. * @maxports: Maximum ports this board can handle. - * @dvid: Board specific device ID. - * @vpd: VPD of this board, if found. - * @serial_num: Serial number of this board, if found in VPD. * @bd_lock: Used to protect board. * @bd_intr_lock: Protect poller tasklet and interrupt routine from each other. * @state: State of the card. @@ -135,8 +111,6 @@ struct board_ops { * @serial_name: Serial driver name. * @print_dirver: Pointer to the print driver. * @print_name: Print driver name. - * @dpatype: Board type as defined by DPA. - * @dpastatus: Board status as defined by DPA. * @bd_dividend: Board/UART's specific dividend. * @bd_ops: Pointer to board operations structure. */ @@ -144,18 +118,8 @@ struct dgnc_board { int boardnum; char *name; struct pci_dev *pdev; - unsigned long bd_flags; - u16 vendor; u16 device; - u16 subvendor; - u16 subdevice; - unsigned char rev; - uint pci_bus; - uint pci_slot; uint maxports; - unsigned char dvid; - unsigned char vpd[128]; - unsigned char serial_num[20]; /* used to protect the board */ spinlock_t bd_lock; @@ -189,9 +153,6 @@ struct dgnc_board { struct tty_driver *print_driver; char print_name[200]; - u16 dpatype; - u16 dpastatus; - uint bd_dividend; struct board_ops *bd_ops; @@ -285,7 +246,6 @@ struct un_t { * @ch_wopen: Waiting for open process count. * @ch_mostat: FEP output modem status. * @ch_mistat: FEP input modem status. - * @chc_neo_uart: Pointer to the mapped neo UART struct * @ch_cls_uart: Pointer to the mapped cls UART struct * @ch_cached_lsr: Cached value of the LSR register. * @ch_rqueue: Read queue buffer, malloc'ed. @@ -344,7 +304,6 @@ struct channel_t { unsigned char ch_mostat; unsigned char ch_mistat; - struct neo_uart_struct __iomem *ch_neo_uart; struct cls_uart_struct __iomem *ch_cls_uart; unsigned char ch_cached_lsr; @@ -381,11 +340,6 @@ struct channel_t { ulong ch_xoff_sends; }; -extern uint dgnc_major; /* Our driver/mgmt major */ -extern int dgnc_poll_tick; /* Poll interval - 20 ms */ -extern spinlock_t dgnc_global_lock; /* Driver global spinlock */ -extern spinlock_t dgnc_poll_lock; /* Poll scheduling lock */ -extern uint dgnc_num_boards; /* Total number of boards */ extern struct dgnc_board *dgnc_board[MAXBOARDS];/* Array of boards */ #endif /* _DGNC_DRIVER_H */ diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c deleted file mode 100644 index 3ca473b47daf..000000000000 --- a/drivers/staging/dgnc/dgnc_mgmt.c +++ /dev/null @@ -1,248 +0,0 @@ -/* - * Copyright 2003 Digi International (www.digi.com) - * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - */ - -/* - * This file implements the mgmt functionality for the - * Neo and ClassicBoard based product lines. - */ - -#include <linux/kernel.h> -#include <linux/ctype.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/serial_reg.h> -#include <linux/termios.h> -#include <linux/uaccess.h> - -#include "dgnc_driver.h" -#include "dgnc_pci.h" -#include "dgnc_mgmt.h" - -/* Our "in use" variables, to enforce 1 open only */ -static int dgnc_mgmt_in_use[MAXMGMTDEVICES]; - -/** - * dgnc_mgmt_open() - Open the mgmt/downld/dpa device. - */ -int dgnc_mgmt_open(struct inode *inode, struct file *file) -{ - unsigned long flags; - unsigned int minor = iminor(inode); - int rc = 0; - - spin_lock_irqsave(&dgnc_global_lock, flags); - - if (minor >= MAXMGMTDEVICES) { - rc = -ENXIO; - goto out; - } - /* Only allow 1 open at a time on mgmt device */ - if (dgnc_mgmt_in_use[minor]) { - rc = -EBUSY; - goto out; - } - dgnc_mgmt_in_use[minor]++; - -out: - spin_unlock_irqrestore(&dgnc_global_lock, flags); - - return rc; -} - -/** - * dgnc_mgmt_close() - Close the mgmt/dpa device - */ -int dgnc_mgmt_close(struct inode *inode, struct file *file) -{ - unsigned long flags; - unsigned int minor = iminor(inode); - int rc = 0; - - spin_lock_irqsave(&dgnc_global_lock, flags); - - if (minor >= MAXMGMTDEVICES) { - rc = -ENXIO; - goto out; - } - dgnc_mgmt_in_use[minor] = 0; - -out: - spin_unlock_irqrestore(&dgnc_global_lock, flags); - - return rc; -} - -/** - * dgnc_mgmt_ioctl() - Ioctl the mgmt/dpa device. - */ -long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg) -{ - unsigned long flags; - void __user *uarg = (void __user *)arg; - - switch (cmd) { - case DIGI_GETDD: - { - /* - * This returns the total number of boards - * in the system, as well as driver version - * and has space for a reserved entry - */ - struct digi_dinfo ddi; - - spin_lock_irqsave(&dgnc_global_lock, flags); - - memset(&ddi, 0, sizeof(ddi)); - ddi.dinfo_nboards = dgnc_num_boards; - sprintf(ddi.dinfo_version, "%s", DG_PART); - - spin_unlock_irqrestore(&dgnc_global_lock, flags); - - if (copy_to_user(uarg, &ddi, sizeof(ddi))) - return -EFAULT; - - break; - } - - case DIGI_GETBD: - { - int brd; - - struct digi_info di; - - if (copy_from_user(&brd, uarg, sizeof(int))) - return -EFAULT; - - if (brd < 0 || brd >= dgnc_num_boards) - return -ENODEV; - - memset(&di, 0, sizeof(di)); - - di.info_bdnum = brd; - - spin_lock_irqsave(&dgnc_board[brd]->bd_lock, flags); - - di.info_bdtype = dgnc_board[brd]->dpatype; - di.info_bdstate = dgnc_board[brd]->dpastatus; - di.info_ioport = 0; - di.info_physaddr = (ulong)dgnc_board[brd]->membase; - di.info_physsize = (ulong)dgnc_board[brd]->membase - - dgnc_board[brd]->membase_end; - if (dgnc_board[brd]->state != BOARD_FAILED) - di.info_nports = dgnc_board[brd]->nasync; - else - di.info_nports = 0; - - spin_unlock_irqrestore(&dgnc_board[brd]->bd_lock, flags); - - if (copy_to_user(uarg, &di, sizeof(di))) - return -EFAULT; - - break; - } - - case DIGI_GET_NI_INFO: - { - struct channel_t *ch; - struct ni_info ni; - unsigned char mstat = 0; - uint board = 0; - uint channel = 0; - - if (copy_from_user(&ni, uarg, sizeof(ni))) - return -EFAULT; - - board = ni.board; - channel = ni.channel; - - if (board >= dgnc_num_boards) - return -ENODEV; - - if (channel >= dgnc_board[board]->nasync) - return -ENODEV; - - ch = dgnc_board[board]->channels[channel]; - - if (!ch) - return -ENODEV; - - memset(&ni, 0, sizeof(ni)); - ni.board = board; - ni.channel = channel; - - spin_lock_irqsave(&ch->ch_lock, flags); - - mstat = ch->ch_mostat | ch->ch_mistat; - - if (mstat & UART_MCR_DTR) { - ni.mstat |= TIOCM_DTR; - ni.dtr = TIOCM_DTR; - } - if (mstat & UART_MCR_RTS) { - ni.mstat |= TIOCM_RTS; - ni.rts = TIOCM_RTS; - } - if (mstat & UART_MSR_CTS) { - ni.mstat |= TIOCM_CTS; - ni.cts = TIOCM_CTS; - } - if (mstat & UART_MSR_RI) { - ni.mstat |= TIOCM_RI; - ni.ri = TIOCM_RI; - } - if (mstat & UART_MSR_DCD) { - ni.mstat |= TIOCM_CD; - ni.dcd = TIOCM_CD; - } - if (mstat & UART_MSR_DSR) - ni.mstat |= TIOCM_DSR; - - ni.iflag = ch->ch_c_iflag; - ni.oflag = ch->ch_c_oflag; - ni.cflag = ch->ch_c_cflag; - ni.lflag = ch->ch_c_lflag; - - if (ch->ch_digi.digi_flags & CTSPACE || - ch->ch_c_cflag & CRTSCTS) - ni.hflow = 1; - else - ni.hflow = 0; - - if ((ch->ch_flags & CH_STOPI) || - (ch->ch_flags & CH_FORCED_STOPI)) - ni.recv_stopped = 1; - else - ni.recv_stopped = 0; - - if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_FORCED_STOP)) - ni.xmit_stopped = 1; - else - ni.xmit_stopped = 0; - - ni.curtx = ch->ch_txcount; - ni.currx = ch->ch_rxcount; - - ni.baud = ch->ch_old_baud; - - spin_unlock_irqrestore(&ch->ch_lock, flags); - - if (copy_to_user(uarg, &ni, sizeof(ni))) - return -EFAULT; - - break; - } - } - return 0; -} diff --git a/drivers/staging/dgnc/dgnc_mgmt.h b/drivers/staging/dgnc/dgnc_mgmt.h deleted file mode 100644 index a7a5770d7630..000000000000 --- a/drivers/staging/dgnc/dgnc_mgmt.h +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Copyright 2003 Digi International (www.digi.com) - * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - */ - -#ifndef _DGNC_MGMT_H -#define _DGNC_MGMT_H - -#define MAXMGMTDEVICES 8 - -int dgnc_mgmt_open(struct inode *inode, struct file *file); -int dgnc_mgmt_close(struct inode *inode, struct file *file); -long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg); - -#endif /* _DGNC_MGMT_H */ - diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c deleted file mode 100644 index 0ae229c3aaaa..000000000000 --- a/drivers/staging/dgnc/dgnc_neo.c +++ /dev/null @@ -1,1690 +0,0 @@ -/* - * Copyright 2003 Digi International (www.digi.com) - * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/serial.h> -#include <linux/serial_reg.h> - -#include "dgnc_driver.h" -#include "dgnc_neo.h" -#include "dgnc_tty.h" - -static inline void neo_parse_lsr(struct dgnc_board *brd, uint port); -static inline void neo_parse_isr(struct dgnc_board *brd, uint port); -static void neo_copy_data_from_uart_to_queue(struct channel_t *ch); -static inline void neo_clear_break(struct channel_t *ch, int force); -static inline void neo_set_cts_flow_control(struct channel_t *ch); -static inline void neo_set_rts_flow_control(struct channel_t *ch); -static inline void neo_set_ixon_flow_control(struct channel_t *ch); -static inline void neo_set_ixoff_flow_control(struct channel_t *ch); -static inline void neo_set_no_output_flow_control(struct channel_t *ch); -static inline void neo_set_no_input_flow_control(struct channel_t *ch); -static inline void neo_set_new_start_stop_chars(struct channel_t *ch); -static void neo_parse_modem(struct channel_t *ch, unsigned char signals); -static void neo_tasklet(unsigned long data); -static void neo_vpd(struct dgnc_board *brd); -static void neo_uart_init(struct channel_t *ch); -static void neo_uart_off(struct channel_t *ch); -static int neo_drain(struct tty_struct *tty, uint seconds); -static void neo_param(struct tty_struct *tty); -static void neo_assert_modem_signals(struct channel_t *ch); -static void neo_flush_uart_write(struct channel_t *ch); -static void neo_flush_uart_read(struct channel_t *ch); -static void neo_disable_receiver(struct channel_t *ch); -static void neo_enable_receiver(struct channel_t *ch); -static void neo_send_break(struct channel_t *ch, int msecs); -static void neo_send_start_character(struct channel_t *ch); -static void neo_send_stop_character(struct channel_t *ch); -static void neo_copy_data_from_queue_to_uart(struct channel_t *ch); -static uint neo_get_uart_bytes_left(struct channel_t *ch); -static void neo_send_immediate_char(struct channel_t *ch, unsigned char c); -static irqreturn_t neo_intr(int irq, void *voidbrd); - -struct board_ops dgnc_neo_ops = { - .tasklet = neo_tasklet, - .intr = neo_intr, - .uart_init = neo_uart_init, - .uart_off = neo_uart_off, - .drain = neo_drain, - .param = neo_param, - .vpd = neo_vpd, - .assert_modem_signals = neo_assert_modem_signals, - .flush_uart_write = neo_flush_uart_write, - .flush_uart_read = neo_flush_uart_read, - .disable_receiver = neo_disable_receiver, - .enable_receiver = neo_enable_receiver, - .send_break = neo_send_break, - .send_start_character = neo_send_start_character, - .send_stop_character = neo_send_stop_character, - .copy_data_from_queue_to_uart = neo_copy_data_from_queue_to_uart, - .get_uart_bytes_left = neo_get_uart_bytes_left, - .send_immediate_char = neo_send_immediate_char -}; - -/* - * This function allows calls to ensure that all outstanding - * PCI writes have been completed, by doing a PCI read against - * a non-destructive, read-only location on the Neo card. - * - * In this case, we are reading the DVID (Read-only Device Identification) - * value of the Neo card. - */ -static inline void neo_pci_posting_flush(struct dgnc_board *bd) -{ - readb(bd->re_map_membase + 0x8D); -} - -static inline void neo_set_cts_flow_control(struct channel_t *ch) -{ - unsigned char ier = readb(&ch->ch_neo_uart->ier); - unsigned char efr = readb(&ch->ch_neo_uart->efr); - - /* Turn on auto CTS flow control */ - ier |= UART_17158_IER_CTSDSR; - efr |= (UART_17158_EFR_ECB | UART_17158_EFR_CTSDSR); - - /* Turn off auto Xon flow control */ - efr &= ~UART_17158_EFR_IXON; - - /* - * Why? Because Exar's spec says we have to zero it - * out before setting it - */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Turn on UART enhanced bits */ - writeb(efr, &ch->ch_neo_uart->efr); - - /* Turn on table D, with 8 char hi/low watermarks */ - writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY, - &ch->ch_neo_uart->fctr); - - /* Feed the UART our trigger levels */ - writeb(8, &ch->ch_neo_uart->tfifo); - ch->ch_t_tlevel = 8; - - writeb(ier, &ch->ch_neo_uart->ier); - - neo_pci_posting_flush(ch->ch_bd); -} - -static inline void neo_set_rts_flow_control(struct channel_t *ch) -{ - unsigned char ier = readb(&ch->ch_neo_uart->ier); - unsigned char efr = readb(&ch->ch_neo_uart->efr); - - /* Turn on auto RTS flow control */ - ier |= UART_17158_IER_RTSDTR; - efr |= (UART_17158_EFR_ECB | UART_17158_EFR_RTSDTR); - - /* Turn off auto Xoff flow control */ - ier &= ~UART_17158_IER_XOFF; - efr &= ~UART_17158_EFR_IXOFF; - - /* - * Why? Because Exar's spec says we have to zero it - * out before setting it - */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Turn on UART enhanced bits */ - writeb(efr, &ch->ch_neo_uart->efr); - - writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY, - &ch->ch_neo_uart->fctr); - ch->ch_r_watermark = 4; - - writeb(32, &ch->ch_neo_uart->rfifo); - ch->ch_r_tlevel = 32; - - writeb(ier, &ch->ch_neo_uart->ier); - - /* - * From the Neo UART spec sheet: - * The auto RTS/DTR function must be started by asserting - * RTS/DTR# output pin (MCR bit-0 or 1 to logic 1 after - * it is enabled. - */ - ch->ch_mostat |= UART_MCR_RTS; - - neo_pci_posting_flush(ch->ch_bd); -} - -static inline void neo_set_ixon_flow_control(struct channel_t *ch) -{ - unsigned char ier = readb(&ch->ch_neo_uart->ier); - unsigned char efr = readb(&ch->ch_neo_uart->efr); - - /* Turn off auto CTS flow control */ - ier &= ~UART_17158_IER_CTSDSR; - efr &= ~UART_17158_EFR_CTSDSR; - - /* Turn on auto Xon flow control */ - efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXON); - - /* - * Why? Because Exar's spec says we have to zero it - * out before setting it - */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Turn on UART enhanced bits */ - writeb(efr, &ch->ch_neo_uart->efr); - - writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, - &ch->ch_neo_uart->fctr); - ch->ch_r_watermark = 4; - - writeb(32, &ch->ch_neo_uart->rfifo); - ch->ch_r_tlevel = 32; - - /* Tell UART what start/stop chars it should be looking for */ - writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); - writeb(0, &ch->ch_neo_uart->xonchar2); - - writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); - writeb(0, &ch->ch_neo_uart->xoffchar2); - - writeb(ier, &ch->ch_neo_uart->ier); - - neo_pci_posting_flush(ch->ch_bd); -} - -static inline void neo_set_ixoff_flow_control(struct channel_t *ch) -{ - unsigned char ier = readb(&ch->ch_neo_uart->ier); - unsigned char efr = readb(&ch->ch_neo_uart->efr); - - /* Turn off auto RTS flow control */ - ier &= ~UART_17158_IER_RTSDTR; - efr &= ~UART_17158_EFR_RTSDTR; - - /* Turn on auto Xoff flow control */ - ier |= UART_17158_IER_XOFF; - efr |= (UART_17158_EFR_ECB | UART_17158_EFR_IXOFF); - - /* - * Why? Because Exar's spec says we have to zero it - * out before setting it - */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Turn on UART enhanced bits */ - writeb(efr, &ch->ch_neo_uart->efr); - - /* Turn on table D, with 8 char hi/low watermarks */ - writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, - &ch->ch_neo_uart->fctr); - - writeb(8, &ch->ch_neo_uart->tfifo); - ch->ch_t_tlevel = 8; - - /* Tell UART what start/stop chars it should be looking for */ - writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); - writeb(0, &ch->ch_neo_uart->xonchar2); - - writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); - writeb(0, &ch->ch_neo_uart->xoffchar2); - - writeb(ier, &ch->ch_neo_uart->ier); - - neo_pci_posting_flush(ch->ch_bd); -} - -static inline void neo_set_no_input_flow_control(struct channel_t *ch) -{ - unsigned char ier = readb(&ch->ch_neo_uart->ier); - unsigned char efr = readb(&ch->ch_neo_uart->efr); - - /* Turn off auto RTS flow control */ - ier &= ~UART_17158_IER_RTSDTR; - efr &= ~UART_17158_EFR_RTSDTR; - - /* Turn off auto Xoff flow control */ - ier &= ~UART_17158_IER_XOFF; - if (ch->ch_c_iflag & IXON) - efr &= ~(UART_17158_EFR_IXOFF); - else - efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXOFF); - - /* - * Why? Because Exar's spec says we have to zero - * it out before setting it - */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Turn on UART enhanced bits */ - writeb(efr, &ch->ch_neo_uart->efr); - - /* Turn on table D, with 8 char hi/low watermarks */ - writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, - &ch->ch_neo_uart->fctr); - - ch->ch_r_watermark = 0; - - writeb(16, &ch->ch_neo_uart->tfifo); - ch->ch_t_tlevel = 16; - - writeb(16, &ch->ch_neo_uart->rfifo); - ch->ch_r_tlevel = 16; - - writeb(ier, &ch->ch_neo_uart->ier); - - neo_pci_posting_flush(ch->ch_bd); -} - -static inline void neo_set_no_output_flow_control(struct channel_t *ch) -{ - unsigned char ier = readb(&ch->ch_neo_uart->ier); - unsigned char efr = readb(&ch->ch_neo_uart->efr); - - /* Turn off auto CTS flow control */ - ier &= ~UART_17158_IER_CTSDSR; - efr &= ~UART_17158_EFR_CTSDSR; - - /* Turn off auto Xon flow control */ - if (ch->ch_c_iflag & IXOFF) - efr &= ~UART_17158_EFR_IXON; - else - efr &= ~(UART_17158_EFR_ECB | UART_17158_EFR_IXON); - - /* - * Why? Because Exar's spec says we have to zero it - * out before setting it - */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Turn on UART enhanced bits */ - writeb(efr, &ch->ch_neo_uart->efr); - - /* Turn on table D, with 8 char hi/low watermarks */ - writeb(UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY, - &ch->ch_neo_uart->fctr); - - ch->ch_r_watermark = 0; - - writeb(16, &ch->ch_neo_uart->tfifo); - ch->ch_t_tlevel = 16; - - writeb(16, &ch->ch_neo_uart->rfifo); - ch->ch_r_tlevel = 16; - - writeb(ier, &ch->ch_neo_uart->ier); - - neo_pci_posting_flush(ch->ch_bd); -} - -/* change UARTs start/stop chars */ -static inline void neo_set_new_start_stop_chars(struct channel_t *ch) -{ - /* if hardware flow control is set, then skip this whole thing */ - if (ch->ch_digi.digi_flags & (CTSPACE | RTSPACE) || - ch->ch_c_cflag & CRTSCTS) - return; - - /* Tell UART what start/stop chars it should be looking for */ - writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); - writeb(0, &ch->ch_neo_uart->xonchar2); - - writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); - writeb(0, &ch->ch_neo_uart->xoffchar2); - - neo_pci_posting_flush(ch->ch_bd); -} - -/* No locks are assumed to be held when calling this function. */ -static inline void neo_clear_break(struct channel_t *ch, int force) -{ - unsigned long flags; - - spin_lock_irqsave(&ch->ch_lock, flags); - - if (!ch->ch_stop_sending_break) { - spin_unlock_irqrestore(&ch->ch_lock, flags); - return; - } - - if (ch->ch_flags & CH_BREAK_SENDING) { - if (force || - time_after_eq(jiffies, ch->ch_stop_sending_break)) { - unsigned char temp = readb(&ch->ch_neo_uart->lcr); - - writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr); - neo_pci_posting_flush(ch->ch_bd); - ch->ch_flags &= ~(CH_BREAK_SENDING); - ch->ch_stop_sending_break = 0; - } - } - spin_unlock_irqrestore(&ch->ch_lock, flags); -} - -/* Parse the ISR register. */ -static inline void neo_parse_isr(struct dgnc_board *brd, uint port) -{ - struct channel_t *ch; - unsigned char isr; - unsigned char cause; - unsigned long flags; - - ch = brd->channels[port]; - if (!ch) - return; - - /* Here we try to figure out what caused the interrupt to happen */ - while (1) { - isr = readb(&ch->ch_neo_uart->isr_fcr); - - if (isr & UART_IIR_NO_INT) - break; - - /* - * Yank off the upper 2 bits, - * which just show that the FIFO's are enabled. - */ - isr &= ~(UART_17158_IIR_FIFO_ENABLED); - - if (isr & (UART_17158_IIR_RDI_TIMEOUT | UART_IIR_RDI)) { - /* Read data from uart -> queue */ - neo_copy_data_from_uart_to_queue(ch); - /* - * Call our tty layer to enforce queue - * flow control if needed. - */ - spin_lock_irqsave(&ch->ch_lock, flags); - dgnc_check_queue_flow_control(ch); - spin_unlock_irqrestore(&ch->ch_lock, flags); - } - - if (isr & UART_IIR_THRI) { - spin_lock_irqsave(&ch->ch_lock, flags); - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - spin_unlock_irqrestore(&ch->ch_lock, flags); - neo_copy_data_from_queue_to_uart(ch); - } - - if (isr & UART_17158_IIR_XONXOFF) { - cause = readb(&ch->ch_neo_uart->xoffchar1); - - /* - * Since the UART detected either an XON or - * XOFF match, we need to figure out which - * one it was, so we can suspend or resume data flow. - */ - if (cause == UART_17158_XON_DETECT) { - /* resume output if stopped */ - if (brd->channels[port]->ch_flags & CH_STOP) { - spin_lock_irqsave(&ch->ch_lock, - flags); - ch->ch_flags &= ~(CH_STOP); - spin_unlock_irqrestore(&ch->ch_lock, - flags); - } - } else if (cause == UART_17158_XOFF_DETECT) { - if (!(brd->channels[port]->ch_flags & - CH_STOP)) { - spin_lock_irqsave(&ch->ch_lock, - flags); - ch->ch_flags |= CH_STOP; - spin_unlock_irqrestore(&ch->ch_lock, - flags); - } - } - } - - if (isr & UART_17158_IIR_HWFLOW_STATE_CHANGE) { - /* - * If we get here, this means the hardware is - * doing auto flow control. Check to see whether - * RTS/DTR or CTS/DSR caused this interrupt. - */ - cause = readb(&ch->ch_neo_uart->mcr); - /* Which pin is doing auto flow? RTS or DTR? */ - if ((cause & 0x4) == 0) { - if (cause & UART_MCR_RTS) { - spin_lock_irqsave(&ch->ch_lock, - flags); - ch->ch_mostat |= UART_MCR_RTS; - spin_unlock_irqrestore(&ch->ch_lock, - flags); - } else { - spin_lock_irqsave(&ch->ch_lock, - flags); - ch->ch_mostat &= ~(UART_MCR_RTS); - spin_unlock_irqrestore(&ch->ch_lock, - flags); - } - } else { - if (cause & UART_MCR_DTR) { - spin_lock_irqsave(&ch->ch_lock, - flags); - ch->ch_mostat |= UART_MCR_DTR; - spin_unlock_irqrestore(&ch->ch_lock, - flags); - } else { - spin_lock_irqsave(&ch->ch_lock, - flags); - ch->ch_mostat &= ~(UART_MCR_DTR); - spin_unlock_irqrestore(&ch->ch_lock, - flags); - } - } - } - - neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); - } -} - -static inline void neo_parse_lsr(struct dgnc_board *brd, uint port) -{ - struct channel_t *ch; - int linestatus; - unsigned long flags; - - if (!brd) - return; - - if (port >= brd->maxports) - return; - - ch = brd->channels[port]; - if (!ch) - return; - - linestatus = readb(&ch->ch_neo_uart->lsr); - - ch->ch_cached_lsr |= linestatus; - - if (ch->ch_cached_lsr & UART_LSR_DR) { - neo_copy_data_from_uart_to_queue(ch); - spin_lock_irqsave(&ch->ch_lock, flags); - dgnc_check_queue_flow_control(ch); - spin_unlock_irqrestore(&ch->ch_lock, flags); - } - - /* - * The next 3 tests should *NOT* happen, as the above test - * should encapsulate all 3... At least, thats what Exar says. - */ - - if (linestatus & UART_LSR_PE) - ch->ch_err_parity++; - - if (linestatus & UART_LSR_FE) - ch->ch_err_frame++; - - if (linestatus & UART_LSR_BI) - ch->ch_err_break++; - - if (linestatus & UART_LSR_OE) { - /* - * Rx Oruns. Exar says that an orun will NOT corrupt - * the FIFO. It will just replace the holding register - * with this new data byte. So basically just ignore this. - * Probably we should eventually have an orun stat in our - * driver... - */ - ch->ch_err_overrun++; - } - - if (linestatus & UART_LSR_THRE) { - spin_lock_irqsave(&ch->ch_lock, flags); - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - spin_unlock_irqrestore(&ch->ch_lock, flags); - - neo_copy_data_from_queue_to_uart(ch); - } else if (linestatus & UART_17158_TX_AND_FIFO_CLR) { - spin_lock_irqsave(&ch->ch_lock, flags); - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - spin_unlock_irqrestore(&ch->ch_lock, flags); - - neo_copy_data_from_queue_to_uart(ch); - } -} - -/* Send any/all changes to the line to the UART. */ -static void neo_param(struct tty_struct *tty) -{ - unsigned char lcr = 0; - unsigned char uart_lcr = 0; - unsigned char ier = 0; - unsigned char uart_ier = 0; - uint baud = 9600; - int quot = 0; - struct dgnc_board *bd; - struct channel_t *ch; - struct un_t *un; - - if (!tty) - return; - - un = (struct un_t *)tty->driver_data; - if (!un) - return; - - ch = un->un_ch; - if (!ch) - return; - - bd = ch->ch_bd; - if (!bd) - return; - - /* If baud rate is zero, flush queues, and set mval to drop DTR. */ - if ((ch->ch_c_cflag & (CBAUD)) == 0) { - ch->ch_r_head = 0; - ch->ch_r_tail = 0; - ch->ch_e_head = 0; - ch->ch_e_tail = 0; - ch->ch_w_head = 0; - ch->ch_w_tail = 0; - - neo_flush_uart_write(ch); - neo_flush_uart_read(ch); - - /* The baudrate is B0 so all modem lines are to be dropped. */ - ch->ch_flags |= (CH_BAUD0); - ch->ch_mostat &= ~(UART_MCR_RTS | UART_MCR_DTR); - neo_assert_modem_signals(ch); - ch->ch_old_baud = 0; - return; - - } else if (ch->ch_custom_speed) { - baud = ch->ch_custom_speed; - /* Handle transition from B0 */ - if (ch->ch_flags & CH_BAUD0) { - ch->ch_flags &= ~(CH_BAUD0); - - /* - * Bring back up RTS and DTR... - * Also handle RTS or DTR toggle if set. - */ - if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE)) - ch->ch_mostat |= (UART_MCR_RTS); - if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE)) - ch->ch_mostat |= (UART_MCR_DTR); - } - } else { - int iindex = 0; - int jindex = 0; - - ulong bauds[4][16] = { - { /* slowbaud */ - 0, 50, 75, 110, - 134, 150, 200, 300, - 600, 1200, 1800, 2400, - 4800, 9600, 19200, 38400 }, - { /* slowbaud & CBAUDEX */ - 0, 57600, 115200, 230400, - 460800, 150, 200, 921600, - 600, 1200, 1800, 2400, - 4800, 9600, 19200, 38400 }, - { /* fastbaud */ - 0, 57600, 76800, 115200, - 131657, 153600, 230400, 460800, - 921600, 1200, 1800, 2400, - 4800, 9600, 19200, 38400 }, - { /* fastbaud & CBAUDEX */ - 0, 57600, 115200, 230400, - 460800, 150, 200, 921600, - 600, 1200, 1800, 2400, - 4800, 9600, 19200, 38400 } - }; - - /* - * Only use the TXPrint baud rate if the terminal unit - * is NOT open - */ - if (!(ch->ch_tun.un_flags & UN_ISOPEN) && - (un->un_type == DGNC_PRINT)) - baud = C_BAUD(ch->ch_pun.un_tty) & 0xff; - else - baud = C_BAUD(ch->ch_tun.un_tty) & 0xff; - - if (ch->ch_c_cflag & CBAUDEX) - iindex = 1; - - if (ch->ch_digi.digi_flags & DIGI_FAST) - iindex += 2; - - jindex = baud; - - if ((iindex >= 0) && (iindex < 4) && - (jindex >= 0) && (jindex < 16)) - baud = bauds[iindex][jindex]; - else - baud = 0; - - if (baud == 0) - baud = 9600; - - /* Handle transition from B0 */ - if (ch->ch_flags & CH_BAUD0) { - ch->ch_flags &= ~(CH_BAUD0); - - /* - * Bring back up RTS and DTR... - * Also handle RTS or DTR toggle if set. - */ - if (!(ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE)) - ch->ch_mostat |= (UART_MCR_RTS); - if (!(ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE)) - ch->ch_mostat |= (UART_MCR_DTR); - } - } - - if (ch->ch_c_cflag & PARENB) - lcr |= UART_LCR_PARITY; - - if (!(ch->ch_c_cflag & PARODD)) - lcr |= UART_LCR_EPAR; - -#ifdef CMSPAR - if (ch->ch_c_cflag & CMSPAR) - lcr |= UART_LCR_SPAR; -#endif - - if (ch->ch_c_cflag & CSTOPB) - lcr |= UART_LCR_STOP; - - switch (ch->ch_c_cflag & CSIZE) { - case CS5: - lcr |= UART_LCR_WLEN5; - break; - case CS6: - lcr |= UART_LCR_WLEN6; - break; - case CS7: - lcr |= UART_LCR_WLEN7; - break; - case CS8: - default: - lcr |= UART_LCR_WLEN8; - break; - } - - uart_ier = readb(&ch->ch_neo_uart->ier); - ier = uart_ier; - - uart_lcr = readb(&ch->ch_neo_uart->lcr); - - if (baud == 0) - baud = 9600; - - quot = ch->ch_bd->bd_dividend / baud; - - if (quot != 0 && ch->ch_old_baud != baud) { - ch->ch_old_baud = baud; - writeb(UART_LCR_DLAB, &ch->ch_neo_uart->lcr); - writeb((quot & 0xff), &ch->ch_neo_uart->txrx); - writeb((quot >> 8), &ch->ch_neo_uart->ier); - writeb(lcr, &ch->ch_neo_uart->lcr); - } - - if (uart_lcr != lcr) - writeb(lcr, &ch->ch_neo_uart->lcr); - - if (ch->ch_c_cflag & CREAD) - ier |= (UART_IER_RDI | UART_IER_RLSI); - else - ier &= ~(UART_IER_RDI | UART_IER_RLSI); - - /* - * Have the UART interrupt on modem signal changes ONLY when - * we are in hardware flow control mode, or CLOCAL/FORCEDCD is not set. - */ - if ((ch->ch_digi.digi_flags & CTSPACE) || - (ch->ch_digi.digi_flags & RTSPACE) || - (ch->ch_c_cflag & CRTSCTS) || - !(ch->ch_digi.digi_flags & DIGI_FORCEDCD) || - !(ch->ch_c_cflag & CLOCAL)) - ier |= UART_IER_MSI; - else - ier &= ~UART_IER_MSI; - - ier |= UART_IER_THRI; - - if (ier != uart_ier) - writeb(ier, &ch->ch_neo_uart->ier); - - neo_set_new_start_stop_chars(ch); - - if (ch->ch_digi.digi_flags & CTSPACE || ch->ch_c_cflag & CRTSCTS) { - neo_set_cts_flow_control(ch); - } else if (ch->ch_c_iflag & IXON) { - if ((ch->ch_startc == _POSIX_VDISABLE) || - (ch->ch_stopc == _POSIX_VDISABLE)) - neo_set_no_output_flow_control(ch); - else - neo_set_ixon_flow_control(ch); - } else { - neo_set_no_output_flow_control(ch); - } - - if (ch->ch_digi.digi_flags & RTSPACE || ch->ch_c_cflag & CRTSCTS) { - neo_set_rts_flow_control(ch); - } else if (ch->ch_c_iflag & IXOFF) { - if ((ch->ch_startc == _POSIX_VDISABLE) || - (ch->ch_stopc == _POSIX_VDISABLE)) - neo_set_no_input_flow_control(ch); - else - neo_set_ixoff_flow_control(ch); - } else { - neo_set_no_input_flow_control(ch); - } - - /* - * Adjust the RX FIFO Trigger level if baud is less than 9600. - * Not exactly elegant, but this is needed because of the Exar chip's - * delay on firing off the RX FIFO interrupt on slower baud rates. - */ - if (baud < 9600) { - writeb(1, &ch->ch_neo_uart->rfifo); - ch->ch_r_tlevel = 1; - } - - neo_assert_modem_signals(ch); - - neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); -} - -/* Board poller function. */ -static void neo_tasklet(unsigned long data) -{ - struct dgnc_board *bd = (struct dgnc_board *)data; - struct channel_t *ch; - unsigned long flags; - int i; - int state = 0; - int ports = 0; - - if (!bd) - return; - - spin_lock_irqsave(&bd->bd_lock, flags); - state = bd->state; - ports = bd->nasync; - spin_unlock_irqrestore(&bd->bd_lock, flags); - - /* - * Do NOT allow the interrupt routine to read the intr registers - * Until we release this lock. - */ - spin_lock_irqsave(&bd->bd_intr_lock, flags); - - if ((state == BOARD_READY) && (ports > 0)) { - for (i = 0; i < ports; i++) { - ch = bd->channels[i]; - if (!ch) - continue; - - /* - * NOTE: Remember you CANNOT hold any channel - * locks when calling the input routine. - * - * During input processing, its possible we - * will call the Linux ld, which might in turn, - * do a callback right back into us, resulting - * in us trying to grab the channel lock twice! - */ - dgnc_input(ch); - - /* - * Channel lock is grabbed and then released - * inside both of these routines, but neither - * call anything else that could call back into us. - */ - neo_copy_data_from_queue_to_uart(ch); - dgnc_wakeup_writes(ch); - - dgnc_carrier(ch); - - /* - * Check to see if we need to turn off a sending break. - * The timing check is done inside clear_break() - */ - if (ch->ch_stop_sending_break) - neo_clear_break(ch, 0); - } - } - - spin_unlock_irqrestore(&bd->bd_intr_lock, flags); -} - -/* Neo specific interrupt handler. */ -static irqreturn_t neo_intr(int irq, void *voidbrd) -{ - struct dgnc_board *brd = voidbrd; - struct channel_t *ch; - int port = 0; - int type; - u32 uart_poll; - unsigned long flags; - unsigned long flags2; - - if (!brd) - return IRQ_NONE; - - /* Lock out the slow poller from running on this board. */ - spin_lock_irqsave(&brd->bd_intr_lock, flags); - - /* - * Read in "extended" IRQ information from the 32bit Neo register. - * Bits 0-7: What port triggered the interrupt. - * Bits 8-31: Each 3bits indicate what type of interrupt occurred. - */ - uart_poll = readl(brd->re_map_membase + UART_17158_POLL_ADDR_OFFSET); - - /* - * If 0, no interrupts pending. - * This can happen if the IRQ is shared among a couple Neo/Classic - * boards. - */ - if (!uart_poll) { - spin_unlock_irqrestore(&brd->bd_intr_lock, flags); - return IRQ_NONE; - } - - while ((uart_poll & 0xff) != 0) { - type = uart_poll >> (8 + (port * 3)); - type &= 0x7; - - uart_poll &= ~(0x01 << port); - - switch (type) { - case UART_17158_RXRDY_TIMEOUT: - /* - * RXRDY Time-out is cleared by reading data in the - * RX FIFO until it falls below the trigger level. - */ - - if (port >= brd->nasync) - break; - - ch = brd->channels[port]; - neo_copy_data_from_uart_to_queue(ch); - - /* - * Call our tty layer to enforce queue flow control if - * needed. - */ - spin_lock_irqsave(&ch->ch_lock, flags2); - dgnc_check_queue_flow_control(ch); - spin_unlock_irqrestore(&ch->ch_lock, flags2); - - break; - - case UART_17158_RX_LINE_STATUS: - - /* RXRDY and RX LINE Status (logic OR of LSR[4:1]) */ - - neo_parse_lsr(brd, port); - break; - - case UART_17158_TXRDY: - /* - * TXRDY interrupt clears after reading ISR register - * for the UART channel. - */ - - /* - * Yes, this is odd... - * Why would I check EVERY possibility of type of - * interrupt, when we know its TXRDY??? - * Becuz for some reason, even tho we got triggered for - * TXRDY, it seems to be occasionally wrong. Instead of - * TX, which it should be, I was getting things like - * RXDY too. Weird. - */ - neo_parse_isr(brd, port); - break; - - case UART_17158_MSR: - /* MSR or flow control was seen. */ - neo_parse_isr(brd, port); - break; - - default: - break; - } - - port++; - } - - tasklet_schedule(&brd->helper_tasklet); - - spin_unlock_irqrestore(&brd->bd_intr_lock, flags); - - return IRQ_HANDLED; -} - -/* - * Neo specific way of turning off the receiver. - * Used as a way to enforce queue flow control when in - * hardware flow control mode. - */ -static void neo_disable_receiver(struct channel_t *ch) -{ - unsigned char tmp = readb(&ch->ch_neo_uart->ier); - - tmp &= ~(UART_IER_RDI); - writeb(tmp, &ch->ch_neo_uart->ier); - neo_pci_posting_flush(ch->ch_bd); -} - -/* - * Neo specific way of turning on the receiver. - * Used as a way to un-enforce queue flow control when in - * hardware flow control mode. - */ -static void neo_enable_receiver(struct channel_t *ch) -{ - unsigned char tmp = readb(&ch->ch_neo_uart->ier); - - tmp |= (UART_IER_RDI); - writeb(tmp, &ch->ch_neo_uart->ier); - neo_pci_posting_flush(ch->ch_bd); -} - -static void neo_copy_data_from_uart_to_queue(struct channel_t *ch) -{ - int qleft = 0; - unsigned char linestatus = 0; - unsigned char error_mask = 0; - int n = 0; - int total = 0; - ushort head; - ushort tail; - unsigned long flags; - - if (!ch) - return; - - spin_lock_irqsave(&ch->ch_lock, flags); - - head = ch->ch_r_head & RQUEUEMASK; - tail = ch->ch_r_tail & RQUEUEMASK; - - linestatus = ch->ch_cached_lsr; - ch->ch_cached_lsr = 0; - - qleft = tail - head - 1; - if (qleft < 0) - qleft += RQUEUEMASK + 1; - - if (!(ch->ch_flags & CH_FIFO_ENABLED)) { - /* force the FIFO copy to NOT be run */ - total = 0; - } else { - total = readb(&ch->ch_neo_uart->rfifo); - - /* - * EXAR chip bug - RX FIFO COUNT - Fudge factor. - * - * This resolves a problem/bug with the Exar chip that sometimes - * returns a bogus value in the rfifo register. - * The count can be any where from 0-3 bytes "off". - * Bizarre, but true. - */ - if ((ch->ch_bd->dvid & 0xf0) >= UART_XR17E158_DVID) - total -= 1; - else - total -= 3; - } - - total = min(total, qleft); - - while (total > 0) { - linestatus = readb(&ch->ch_neo_uart->lsr); - - if (linestatus & UART_17158_RX_FIFO_DATA_ERROR) - break; - - /* Make sure we don't go over the end of our queue */ - n = min(((uint)total), (RQUEUESIZE - (uint)head)); - - /* - * Cut down n even further if needed, this is to fix - * a problem with memcpy_fromio() with the Neo on the - * IBM pSeries platform. - * 15 bytes max appears to be the magic number. - */ - n = min_t(uint, n, 12); - - /* - * Since we are grabbing the linestatus register, which - * will reset some bits after our read, we need to ensure - * we don't miss our TX FIFO emptys. - */ - if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR)) - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - - linestatus = 0; - - memcpy_fromio(ch->ch_rqueue + head, - &ch->ch_neo_uart->txrxburst, n); - - /* - * Since RX_FIFO_DATA_ERROR was 0, we are guaranteed - * that all the data currently in the FIFO is free of - * breaks and parity/frame/orun errors. - */ - memset(ch->ch_equeue + head, 0, n); - - head = (head + n) & RQUEUEMASK; - total -= n; - qleft -= n; - ch->ch_rxcount += n; - } - - /* - * Create a mask to determine whether we should - * insert the character (if any) into our queue. - */ - if (ch->ch_c_iflag & IGNBRK) - error_mask |= UART_LSR_BI; - - /* - * Now cleanup any leftover bytes still in the UART. - * Also deal with any possible queue overflow here as well. - */ - while (1) { - /* - * Its possible we have a linestatus from the loop above - * this, so we "OR" on any extra bits. - */ - linestatus |= readb(&ch->ch_neo_uart->lsr); - - /* - * If the chip tells us there is no more data pending to - * be read, we can then leave. - * But before we do, cache the linestatus, just in case. - */ - if (!(linestatus & UART_LSR_DR)) { - ch->ch_cached_lsr = linestatus; - break; - } - - /* No need to store this bit */ - linestatus &= ~UART_LSR_DR; - - /* - * Since we are grabbing the linestatus register, which - * will reset some bits after our read, we need to ensure - * we don't miss our TX FIFO emptys. - */ - if (linestatus & (UART_LSR_THRE | UART_17158_TX_AND_FIFO_CLR)) { - linestatus &= ~(UART_LSR_THRE | - UART_17158_TX_AND_FIFO_CLR); - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - } - - if (linestatus & error_mask) { - unsigned char discard; - - linestatus = 0; - memcpy_fromio(&discard, &ch->ch_neo_uart->txrxburst, 1); - continue; - } - - /* - * If our queue is full, we have no choice but to drop - * some data. The assumption is that HWFLOW or SWFLOW - * should have stopped things way way before we got to - * this point. - */ - while (qleft < 1) { - tail = (tail + 1) & RQUEUEMASK; - ch->ch_r_tail = tail; - ch->ch_err_overrun++; - qleft++; - } - - memcpy_fromio(ch->ch_rqueue + head, - &ch->ch_neo_uart->txrxburst, 1); - ch->ch_equeue[head] = (unsigned char)linestatus; - - linestatus = 0; - - head = (head + 1) & RQUEUEMASK; - - qleft--; - ch->ch_rxcount++; - } - - ch->ch_r_head = head & RQUEUEMASK; - ch->ch_e_head = head & EQUEUEMASK; - - spin_unlock_irqrestore(&ch->ch_lock, flags); -} - -/* - * This function basically goes to sleep for secs, or until - * it gets signalled that the port has fully drained. - */ -static int neo_drain(struct tty_struct *tty, uint seconds) -{ - unsigned long flags; - struct channel_t *ch; - struct un_t *un; - - if (!tty) - return -ENXIO; - - un = (struct un_t *)tty->driver_data; - if (!un) - return -ENXIO; - - ch = un->un_ch; - if (!ch) - return -ENXIO; - - spin_lock_irqsave(&ch->ch_lock, flags); - un->un_flags |= UN_EMPTY; - spin_unlock_irqrestore(&ch->ch_lock, flags); - - /* If returned value is non-zero, user ctrl-c'ed us */ - return wait_event_interruptible_timeout(un->un_flags_wait, - ((un->un_flags & UN_EMPTY) == 0), - msecs_to_jiffies(seconds * 1000)); -} - -/* - * Flush the WRITE FIFO on the Neo. - * Channel lock MUST be held before calling this function! - */ -static void neo_flush_uart_write(struct channel_t *ch) -{ - unsigned char tmp = 0; - int i = 0; - - if (!ch) - return; - - writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT), - &ch->ch_neo_uart->isr_fcr); - neo_pci_posting_flush(ch->ch_bd); - - for (i = 0; i < 10; i++) { - /* - * Check to see if the UART completely flushed the FIFO - * FIFO. - */ - tmp = readb(&ch->ch_neo_uart->isr_fcr); - if (tmp & 4) - udelay(10); - else - break; - } - - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); -} - -/* - * Flush the READ FIFO on the Neo. - * Channel lock MUST be held before calling this function! - */ -static void neo_flush_uart_read(struct channel_t *ch) -{ - unsigned char tmp = 0; - int i = 0; - - if (!ch) - return; - - writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR, - &ch->ch_neo_uart->isr_fcr); - neo_pci_posting_flush(ch->ch_bd); - - for (i = 0; i < 10; i++) { - /* - * Check to see if the UART feels it completely flushed the - * FIFO. - */ - tmp = readb(&ch->ch_neo_uart->isr_fcr); - if (tmp & 2) - udelay(10); - else - break; - } -} - -static void neo_copy_data_from_queue_to_uart(struct channel_t *ch) -{ - ushort head; - ushort tail; - int n; - int s; - int qlen; - uint len_written = 0; - unsigned long flags; - - if (!ch) - return; - - spin_lock_irqsave(&ch->ch_lock, flags); - - if (ch->ch_w_tail == ch->ch_w_head) - goto exit_unlock; - - /* If port is "stopped", don't send any data to the UART */ - if ((ch->ch_flags & CH_FORCED_STOP) || - (ch->ch_flags & CH_BREAK_SENDING)) - goto exit_unlock; - - if (!(ch->ch_flags & CH_FIFO_ENABLED)) { - /* Send data directly to txrx register */ - unsigned char lsrbits = readb(&ch->ch_neo_uart->lsr); - - ch->ch_cached_lsr |= lsrbits; - if (ch->ch_cached_lsr & UART_LSR_THRE) { - ch->ch_cached_lsr &= ~(UART_LSR_THRE); - - /* - * If RTS Toggle mode is on, turn on RTS now if not - * already set, and make sure we get an event when the - * data transfer has completed. - */ - if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) { - if (!(ch->ch_mostat & UART_MCR_RTS)) { - ch->ch_mostat |= (UART_MCR_RTS); - neo_assert_modem_signals(ch); - } - ch->ch_tun.un_flags |= (UN_EMPTY); - } - /* - * If DTR Toggle mode is on, turn on DTR now if not - * already set, and make sure we get an event when the - * data transfer has completed. - */ - if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) { - if (!(ch->ch_mostat & UART_MCR_DTR)) { - ch->ch_mostat |= (UART_MCR_DTR); - neo_assert_modem_signals(ch); - } - ch->ch_tun.un_flags |= (UN_EMPTY); - } - - writeb(ch->ch_wqueue[ch->ch_w_tail], - &ch->ch_neo_uart->txrx); - ch->ch_w_tail++; - ch->ch_w_tail &= WQUEUEMASK; - ch->ch_txcount++; - } - - goto exit_unlock; - } - - /* We have to do it this way, because of the EXAR TXFIFO count bug. */ - - if ((ch->ch_bd->dvid & 0xf0) < UART_XR17E158_DVID) { - if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) - goto exit_unlock; - - len_written = 0; - - n = readb(&ch->ch_neo_uart->tfifo); - - if ((unsigned int)n > ch->ch_t_tlevel) - goto exit_unlock; - - n = UART_17158_TX_FIFOSIZE - ch->ch_t_tlevel; - } else { - n = UART_17158_TX_FIFOSIZE - readb(&ch->ch_neo_uart->tfifo); - } - - head = ch->ch_w_head & WQUEUEMASK; - tail = ch->ch_w_tail & WQUEUEMASK; - qlen = (head - tail) & WQUEUEMASK; - - n = min(n, qlen); - - while (n > 0) { - s = ((head >= tail) ? head : WQUEUESIZE) - tail; - s = min(s, n); - - if (s <= 0) - break; - - /* - * If RTS Toggle mode is on, turn on RTS now if not already set, - * and make sure we get an event when the data transfer has - * completed. - */ - if (ch->ch_digi.digi_flags & DIGI_RTS_TOGGLE) { - if (!(ch->ch_mostat & UART_MCR_RTS)) { - ch->ch_mostat |= (UART_MCR_RTS); - neo_assert_modem_signals(ch); - } - ch->ch_tun.un_flags |= (UN_EMPTY); - } - - /* - * If DTR Toggle mode is on, turn on DTR now if not already set, - * and make sure we get an event when the data transfer has - * completed. - */ - if (ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) { - if (!(ch->ch_mostat & UART_MCR_DTR)) { - ch->ch_mostat |= (UART_MCR_DTR); - neo_assert_modem_signals(ch); - } - ch->ch_tun.un_flags |= (UN_EMPTY); - } - - memcpy_toio(&ch->ch_neo_uart->txrxburst, - ch->ch_wqueue + tail, s); - - tail = (tail + s) & WQUEUEMASK; - n -= s; - ch->ch_txcount += s; - len_written += s; - } - - ch->ch_w_tail = tail & WQUEUEMASK; - - if (len_written > 0) { - neo_pci_posting_flush(ch->ch_bd); - ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - } - -exit_unlock: - spin_unlock_irqrestore(&ch->ch_lock, flags); -} - -static void neo_parse_modem(struct channel_t *ch, unsigned char signals) -{ - unsigned char msignals = signals; - - if (!ch) - return; - - /* - * Do altpin switching. Altpin switches DCD and DSR. - * This prolly breaks DSRPACE, so we should be more clever here. - */ - if (ch->ch_digi.digi_flags & DIGI_ALTPIN) { - unsigned char mswap = msignals; - - if (mswap & UART_MSR_DDCD) { - msignals &= ~UART_MSR_DDCD; - msignals |= UART_MSR_DDSR; - } - if (mswap & UART_MSR_DDSR) { - msignals &= ~UART_MSR_DDSR; - msignals |= UART_MSR_DDCD; - } - if (mswap & UART_MSR_DCD) { - msignals &= ~UART_MSR_DCD; - msignals |= UART_MSR_DSR; - } - if (mswap & UART_MSR_DSR) { - msignals &= ~UART_MSR_DSR; - msignals |= UART_MSR_DCD; - } - } - - /* Scrub off lower bits. They signify delta's */ - msignals &= 0xf0; - - if (msignals & UART_MSR_DCD) - ch->ch_mistat |= UART_MSR_DCD; - else - ch->ch_mistat &= ~UART_MSR_DCD; - - if (msignals & UART_MSR_DSR) - ch->ch_mistat |= UART_MSR_DSR; - else - ch->ch_mistat &= ~UART_MSR_DSR; - - if (msignals & UART_MSR_RI) - ch->ch_mistat |= UART_MSR_RI; - else - ch->ch_mistat &= ~UART_MSR_RI; - - if (msignals & UART_MSR_CTS) - ch->ch_mistat |= UART_MSR_CTS; - else - ch->ch_mistat &= ~UART_MSR_CTS; -} - -/* Make the UART raise any of the output signals we want up */ -static void neo_assert_modem_signals(struct channel_t *ch) -{ - unsigned char out; - - if (!ch) - return; - - out = ch->ch_mostat; - - if (ch->ch_flags & CH_LOOPBACK) - out |= UART_MCR_LOOP; - - writeb(out, &ch->ch_neo_uart->mcr); - neo_pci_posting_flush(ch->ch_bd); - - /* Give time for the UART to actually raise/drop the signals */ - udelay(10); -} - -static void neo_send_start_character(struct channel_t *ch) -{ - if (!ch) - return; - - if (ch->ch_startc != _POSIX_VDISABLE) { - ch->ch_xon_sends++; - writeb(ch->ch_startc, &ch->ch_neo_uart->txrx); - neo_pci_posting_flush(ch->ch_bd); - udelay(10); - } -} - -static void neo_send_stop_character(struct channel_t *ch) -{ - if (!ch) - return; - - if (ch->ch_stopc != _POSIX_VDISABLE) { - ch->ch_xoff_sends++; - writeb(ch->ch_stopc, &ch->ch_neo_uart->txrx); - neo_pci_posting_flush(ch->ch_bd); - udelay(10); - } -} - -/* neo_uart_init */ - -static void neo_uart_init(struct channel_t *ch) -{ - writeb(0, &ch->ch_neo_uart->ier); - writeb(0, &ch->ch_neo_uart->efr); - writeb(UART_EFR_ECB, &ch->ch_neo_uart->efr); - - /* Clear out UART and FIFO */ - readb(&ch->ch_neo_uart->txrx); - writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT, - &ch->ch_neo_uart->isr_fcr); - readb(&ch->ch_neo_uart->lsr); - readb(&ch->ch_neo_uart->msr); - - ch->ch_flags |= CH_FIFO_ENABLED; - - /* Assert any signals we want up */ - writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr); - neo_pci_posting_flush(ch->ch_bd); -} - -/* Make the UART completely turn off. */ -static void neo_uart_off(struct channel_t *ch) -{ - /* Turn off UART enhanced bits */ - writeb(0, &ch->ch_neo_uart->efr); - - /* Stop all interrupts from occurring. */ - writeb(0, &ch->ch_neo_uart->ier); - neo_pci_posting_flush(ch->ch_bd); -} - -static uint neo_get_uart_bytes_left(struct channel_t *ch) -{ - unsigned char left = 0; - unsigned char lsr = readb(&ch->ch_neo_uart->lsr); - - /* We must cache the LSR as some of the bits get reset once read... */ - ch->ch_cached_lsr |= lsr; - - /* Determine whether the Transmitter is empty or not */ - if (!(lsr & UART_LSR_TEMT)) { - if (ch->ch_flags & CH_TX_FIFO_EMPTY) - tasklet_schedule(&ch->ch_bd->helper_tasklet); - left = 1; - } else { - ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); - left = 0; - } - - return left; -} - -/* Channel lock MUST be held by the calling function! */ -static void neo_send_break(struct channel_t *ch, int msecs) -{ - /* If we receive a time of 0, this means turn off the break. */ - - if (msecs == 0) { - if (ch->ch_flags & CH_BREAK_SENDING) { - unsigned char temp = readb(&ch->ch_neo_uart->lcr); - - writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr); - neo_pci_posting_flush(ch->ch_bd); - ch->ch_flags &= ~(CH_BREAK_SENDING); - ch->ch_stop_sending_break = 0; - } - return; - } - - /* - * Set the time we should stop sending the break. - * If we are already sending a break, toss away the existing - * time to stop, and use this new value instead. - */ - ch->ch_stop_sending_break = jiffies + dgnc_jiffies_from_ms(msecs); - - /* Tell the UART to start sending the break */ - if (!(ch->ch_flags & CH_BREAK_SENDING)) { - unsigned char temp = readb(&ch->ch_neo_uart->lcr); - - writeb((temp | UART_LCR_SBC), &ch->ch_neo_uart->lcr); - neo_pci_posting_flush(ch->ch_bd); - ch->ch_flags |= (CH_BREAK_SENDING); - } -} - -/* - * Sends a specific character as soon as possible to the UART, - * jumping over any bytes that might be in the write queue. - * - * The channel lock MUST be held by the calling function. - */ -static void neo_send_immediate_char(struct channel_t *ch, unsigned char c) -{ - if (!ch) - return; - - writeb(c, &ch->ch_neo_uart->txrx); - neo_pci_posting_flush(ch->ch_bd); -} - -static unsigned int neo_read_eeprom(unsigned char __iomem *base, - unsigned int address) -{ - unsigned int enable; - unsigned int bits; - unsigned int databit; - unsigned int val; - - /* enable chip select */ - writeb(NEO_EECS, base + NEO_EEREG); - /* READ */ - enable = address | 0x180; - - for (bits = 9; bits--; ) { - databit = (enable & (1 << bits)) ? NEO_EEDI : 0; - /* Set read address */ - writeb(databit | NEO_EECS, base + NEO_EEREG); - writeb(databit | NEO_EECS | NEO_EECK, base + NEO_EEREG); - } - - val = 0; - - for (bits = 17; bits--; ) { - /* clock to EEPROM */ - writeb(NEO_EECS, base + NEO_EEREG); - writeb(NEO_EECS | NEO_EECK, base + NEO_EEREG); - val <<= 1; - /* read EEPROM */ - if (readb(base + NEO_EEREG) & NEO_EEDO) - val |= 1; - } - - /* clock falling edge */ - writeb(NEO_EECS, base + NEO_EEREG); - - /* drop chip select */ - writeb(0x00, base + NEO_EEREG); - - return val; -} - -static void neo_vpd(struct dgnc_board *brd) -{ - unsigned int i = 0; - unsigned int a; - - if (!brd) - return; - - if (!brd->re_map_membase) - return; - - /* Store the VPD into our buffer */ - for (i = 0; i < NEO_VPD_IMAGESIZE; i++) { - a = neo_read_eeprom(brd->re_map_membase, i); - brd->vpd[i * 2] = a & 0xff; - brd->vpd[(i * 2) + 1] = (a >> 8) & 0xff; - } - - /* - * brd->vpd has different name tags by below index. - * 0x08 : long resource name tag - * 0x10 : long resource name tage (PCI-66 files) - * 0x7F : small resource end tag - */ - if (((brd->vpd[0x08] != 0x82) && - (brd->vpd[0x10] != 0x82)) || - (brd->vpd[0x7F] != 0x78)) { - memset(brd->vpd, '\0', NEO_VPD_IMAGESIZE); - } else { - /* Search for the serial number */ - for (i = 0; i < NEO_VPD_IMAGEBYTES - 3; i++) - if (brd->vpd[i] == 'S' && brd->vpd[i + 1] == 'N') - strncpy(brd->serial_num, &brd->vpd[i + 3], 9); - } -} diff --git a/drivers/staging/dgnc/dgnc_neo.h b/drivers/staging/dgnc/dgnc_neo.h deleted file mode 100644 index c30a2c2b5eea..000000000000 --- a/drivers/staging/dgnc/dgnc_neo.h +++ /dev/null @@ -1,175 +0,0 @@ -/* - * Copyright 2003 Digi International (www.digi.com) - * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - */ - -#ifndef _DGNC_NEO_H -#define _DGNC_NEO_H - -#include "dgnc_driver.h" - -/** - * struct neo_uart_struct - Per channel/port NEO UART structure - * - * key - W = read write - * - R = read only - * - U = unused - * - * @txrx: (RW) Holding Register. - * @ier: (RW) Interrupt Enable Register. - * @isr_fcr: (RW) Interrupt Status Reg/Fifo Control Register. - * @lcr: (RW) Line Control Register. - * @mcr: (RW) Modem Control Register. - * @lsr: (RW) Line Status Register. - * @msr: (RW) Modem Status Register. - * @spr: (RW) Scratch Pad Register. - * @fctr: (RW) Feature Control Register. - * @efr: (RW) Enhanced Function Register. - * @tfifo: (RW) Transmit FIFO Register. - * @rfifo: (RW) Receive FIFO Register. - * @xoffchar1: (RW) XOff Character 1 Register. - * @xoffchar2: (RW) XOff Character 2 Register. - * @xonchar1: (RW) Xon Character 1 Register. - * @xonchar2: (RW) XOn Character 2 Register. - * @reserved1: (U) Reserved by Exar. - * @txrxburst: (RW) 64 bytes of RX/TX FIFO Data. - * @reserved2: (U) Reserved by Exar. - * @rxburst_with_errors: (R) bytes of RX FIFO Data + LSR. - */ -struct neo_uart_struct { - u8 txrx; - u8 ier; - u8 isr_fcr; - - u8 lcr; - u8 mcr; - u8 lsr; - u8 msr; - u8 spr; - u8 fctr; - u8 efr; - u8 tfifo; - u8 rfifo; - u8 xoffchar1; - u8 xoffchar2; - u8 xonchar1; - u8 xonchar2; - - u8 reserved1[0x2ff - 0x200]; - u8 txrxburst[64]; - u8 reserved2[0x37f - 0x340]; - u8 rxburst_with_errors[64]; -}; - -/* Where to read the extended interrupt register (32bits instead of 8bits) */ -#define UART_17158_POLL_ADDR_OFFSET 0x80 - -/* These are the current dvid's of the Neo boards */ -#define UART_XR17C158_DVID 0x20 -#define UART_XR17D158_DVID 0x20 -#define UART_XR17E158_DVID 0x40 - -#define NEO_EECK 0x10 /* Clock */ -#define NEO_EECS 0x20 /* Chip Select */ -#define NEO_EEDI 0x40 /* Data In is an Output Pin */ -#define NEO_EEDO 0x80 /* Data Out is an Input Pin */ -#define NEO_EEREG 0x8E /* offset to EEPROM control reg */ - -#define NEO_VPD_IMAGESIZE 0x40 /* size of image to read from EEPROM in words */ -#define NEO_VPD_IMAGEBYTES (NEO_VPD_IMAGESIZE * 2) - -/* - * These are the redefinitions for the FCTR on the XR17C158, since - * Exar made them different than their earlier design. (XR16C854) - */ - -/* These are only applicable when table D is selected */ -#define UART_17158_FCTR_RTS_NODELAY 0x00 -#define UART_17158_FCTR_RTS_4DELAY 0x01 -#define UART_17158_FCTR_RTS_6DELAY 0x02 -#define UART_17158_FCTR_RTS_8DELAY 0x03 -#define UART_17158_FCTR_RTS_12DELAY 0x12 -#define UART_17158_FCTR_RTS_16DELAY 0x05 -#define UART_17158_FCTR_RTS_20DELAY 0x13 -#define UART_17158_FCTR_RTS_24DELAY 0x06 -#define UART_17158_FCTR_RTS_28DELAY 0x14 -#define UART_17158_FCTR_RTS_32DELAY 0x07 -#define UART_17158_FCTR_RTS_36DELAY 0x16 -#define UART_17158_FCTR_RTS_40DELAY 0x08 -#define UART_17158_FCTR_RTS_44DELAY 0x09 -#define UART_17158_FCTR_RTS_48DELAY 0x10 -#define UART_17158_FCTR_RTS_52DELAY 0x11 - -#define UART_17158_FCTR_RTS_IRDA 0x10 -#define UART_17158_FCTR_RS485 0x20 -#define UART_17158_FCTR_TRGA 0x00 -#define UART_17158_FCTR_TRGB 0x40 -#define UART_17158_FCTR_TRGC 0x80 -#define UART_17158_FCTR_TRGD 0xC0 - -/* 17158 trigger table selects.. */ -#define UART_17158_FCTR_BIT6 0x40 -#define UART_17158_FCTR_BIT7 0x80 - -/* 17158 TX/RX memmapped buffer offsets */ -#define UART_17158_RX_FIFOSIZE 64 -#define UART_17158_TX_FIFOSIZE 64 - -/* 17158 Extended IIR's */ -#define UART_17158_IIR_RDI_TIMEOUT 0x0C /* Receiver data TIMEOUT */ -#define UART_17158_IIR_XONXOFF 0x10 /* Received an XON/XOFF char */ -#define UART_17158_IIR_HWFLOW_STATE_CHANGE 0x20 /* CTS/DSR or RTS/DTR - * state change - */ -#define UART_17158_IIR_FIFO_ENABLED 0xC0 /* 16550 FIFOs are Enabled */ - -/* - * These are the extended interrupts that get sent - * back to us from the UART's 32bit interrupt register - */ -#define UART_17158_RX_LINE_STATUS 0x1 /* RX Ready */ -#define UART_17158_RXRDY_TIMEOUT 0x2 /* RX Ready Timeout */ -#define UART_17158_TXRDY 0x3 /* TX Ready */ -#define UART_17158_MSR 0x4 /* Modem State Change */ -#define UART_17158_TX_AND_FIFO_CLR 0x40 /* Transmitter Holding - * Reg Empty - */ -#define UART_17158_RX_FIFO_DATA_ERROR 0x80 /* UART detected an RX FIFO - * Data error - */ - -/* - * These are the EXTENDED definitions for the 17C158's Interrupt - * Enable Register. - */ -#define UART_17158_EFR_ECB 0x10 /* Enhanced control bit */ -#define UART_17158_EFR_IXON 0x2 /* Receiver compares Xon1/Xoff1 */ -#define UART_17158_EFR_IXOFF 0x8 /* Transmit Xon1/Xoff1 */ -#define UART_17158_EFR_RTSDTR 0x40 /* Auto RTS/DTR Flow Control Enable */ -#define UART_17158_EFR_CTSDSR 0x80 /* Auto CTS/DSR Flow Control Enable */ - -#define UART_17158_XOFF_DETECT 0x1 /* Indicates whether chip saw an - * incoming XOFF char - */ -#define UART_17158_XON_DETECT 0x2 /* Indicates whether chip saw an - * incoming XON char - */ - -#define UART_17158_IER_RSVD1 0x10 /* Reserved by Exar */ -#define UART_17158_IER_XOFF 0x20 /* Xoff Interrupt Enable */ -#define UART_17158_IER_RTSDTR 0x40 /* Output Interrupt Enable */ -#define UART_17158_IER_CTSDSR 0x80 /* Input Interrupt Enable */ - -extern struct board_ops dgnc_neo_ops; - -#endif /* _DGNC_NEO_H */ diff --git a/drivers/staging/dgnc/dgnc_pci.h b/drivers/staging/dgnc/dgnc_pci.h deleted file mode 100644 index 59845916d90c..000000000000 --- a/drivers/staging/dgnc/dgnc_pci.h +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Copyright 2003 Digi International (www.digi.com) - * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. - */ - -#ifndef _DGNC_PCI_H -#define _DGNC_PCI_H - -/* Maximum number of PCI boards */ -#define PCIMAX 32 - -#define DIGI_VID 0x114F - -#define PCI_DEVICE_CLASSIC_4_DID 0x0028 -#define PCI_DEVICE_CLASSIC_8_DID 0x0029 -#define PCI_DEVICE_CLASSIC_4_422_DID 0x00D0 -#define PCI_DEVICE_CLASSIC_8_422_DID 0x00D1 -#define PCI_DEVICE_NEO_4_DID 0x00B0 -#define PCI_DEVICE_NEO_8_DID 0x00B1 -#define PCI_DEVICE_NEO_2DB9_DID 0x00C8 -#define PCI_DEVICE_NEO_2DB9PRI_DID 0x00C9 -#define PCI_DEVICE_NEO_2RJ45_DID 0x00CA -#define PCI_DEVICE_NEO_2RJ45PRI_DID 0x00CB -#define PCI_DEVICE_NEO_1_422_DID 0x00CC -#define PCI_DEVICE_NEO_1_422_485_DID 0x00CD -#define PCI_DEVICE_NEO_2_422_485_DID 0x00CE -#define PCI_DEVICE_NEO_EXPRESS_8_DID 0x00F0 -#define PCI_DEVICE_NEO_EXPRESS_4_DID 0x00F1 -#define PCI_DEVICE_NEO_EXPRESS_4RJ45_DID 0x00F2 -#define PCI_DEVICE_NEO_EXPRESS_8RJ45_DID 0x00F3 -#define PCI_DEVICE_NEO_EXPRESS_4_IBM_DID 0x00F4 - -#define PCI_DEVICE_CLASSIC_4_PCI_NAME "ClassicBoard 4 PCI" -#define PCI_DEVICE_CLASSIC_8_PCI_NAME "ClassicBoard 8 PCI" -#define PCI_DEVICE_CLASSIC_4_422_PCI_NAME "ClassicBoard 4 422 PCI" -#define PCI_DEVICE_CLASSIC_8_422_PCI_NAME "ClassicBoard 8 422 PCI" -#define PCI_DEVICE_NEO_4_PCI_NAME "Neo 4 PCI" -#define PCI_DEVICE_NEO_8_PCI_NAME "Neo 8 PCI" -#define PCI_DEVICE_NEO_2DB9_PCI_NAME "Neo 2 - DB9 Universal PCI" -#define PCI_DEVICE_NEO_2DB9PRI_PCI_NAME "Neo 2 - DB9 Universal PCI - Powered Ring Indicator" -#define PCI_DEVICE_NEO_2RJ45_PCI_NAME "Neo 2 - RJ45 Universal PCI" -#define PCI_DEVICE_NEO_2RJ45PRI_PCI_NAME "Neo 2 - RJ45 Universal PCI - Powered Ring Indicator" -#define PCI_DEVICE_NEO_1_422_PCI_NAME "Neo 1 422 PCI" -#define PCI_DEVICE_NEO_1_422_485_PCI_NAME "Neo 1 422/485 PCI" -#define PCI_DEVICE_NEO_2_422_485_PCI_NAME "Neo 2 422/485 PCI" - -#define PCI_DEVICE_NEO_EXPRESS_8_PCI_NAME "Neo 8 PCI Express" -#define PCI_DEVICE_NEO_EXPRESS_4_PCI_NAME "Neo 4 PCI Express" -#define PCI_DEVICE_NEO_EXPRESS_4RJ45_PCI_NAME "Neo 4 PCI Express RJ45" -#define PCI_DEVICE_NEO_EXPRESS_8RJ45_PCI_NAME "Neo 8 PCI Express RJ45" -#define PCI_DEVICE_NEO_EXPRESS_4_IBM_PCI_NAME "Neo 4 PCI Express IBM" - -/* Size of memory and I/O for PCI (4 K) */ -#define PCI_RAM_SIZE 0x1000 - -/* Size of memory (2MB) */ -#define PCI_MEM_SIZE 0x1000 - -#endif /* _DGNC_PCI_H */ diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c index d3736daf8cf2..9f9b9a5b4b27 100644 --- a/drivers/staging/dgnc/dgnc_tty.c +++ b/drivers/staging/dgnc/dgnc_tty.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ /* @@ -33,9 +24,7 @@ #include <linux/pci.h> #include "dgnc_driver.h" #include "dgnc_tty.h" -#include "dgnc_neo.h" #include "dgnc_cls.h" -#include "dgnc_utils.h" /* Default transparent print information. */ @@ -240,10 +229,7 @@ int dgnc_tty_init(struct dgnc_board *brd) ch->ch_pun.un_type = DGNC_PRINT; ch->ch_pun.un_dev = i + 128; - if (brd->bd_uart_offset == 0x200) - ch->ch_neo_uart = vaddr + (brd->bd_uart_offset * i); - else - ch->ch_cls_uart = vaddr + (brd->bd_uart_offset * i); + ch->ch_cls_uart = vaddr + (brd->bd_uart_offset * i); ch->ch_bd = brd; ch->ch_portnum = i; @@ -1238,7 +1224,7 @@ static void dgnc_tty_close(struct tty_struct *tty, struct file *file) if (ch->ch_close_delay) { spin_unlock_irqrestore(&ch->ch_lock, flags); - dgnc_ms_sleep(ch->ch_close_delay); + msleep_interruptible(ch->ch_close_delay); spin_lock_irqsave(&ch->ch_lock, flags); } } diff --git a/drivers/staging/dgnc/dgnc_tty.h b/drivers/staging/dgnc/dgnc_tty.h index 6c58f1b3461a..00e31035b83d 100644 --- a/drivers/staging/dgnc/dgnc_tty.h +++ b/drivers/staging/dgnc/dgnc_tty.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ #ifndef _DGNC_TTY_H diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c deleted file mode 100644 index 620f5741a1ed..000000000000 --- a/drivers/staging/dgnc/dgnc_utils.c +++ /dev/null @@ -1,17 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/tty.h> -#include <linux/sched/signal.h> -#include "dgnc_utils.h" - -/** - * dgnc_ms_sleep - Put the driver to sleep - * @ms - milliseconds to sleep - * - * Return: 0 if timed out, if interrupted by a signal return signal. - */ -int dgnc_ms_sleep(ulong ms) -{ - __set_current_state(TASK_INTERRUPTIBLE); - schedule_timeout((ms * HZ) / 1000); - return signal_pending(current); -} diff --git a/drivers/staging/dgnc/dgnc_utils.h b/drivers/staging/dgnc/dgnc_utils.h deleted file mode 100644 index b30527f0889d..000000000000 --- a/drivers/staging/dgnc/dgnc_utils.h +++ /dev/null @@ -1,7 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _DGNC_UTILS_H -#define _DGNC_UTILS_H - -int dgnc_ms_sleep(ulong ms); - -#endif /* _DGNC_UTILS_H */ diff --git a/drivers/staging/dgnc/digi.h b/drivers/staging/dgnc/digi.h index 46b06b07bbf2..b414ee80db88 100644 --- a/drivers/staging/dgnc/digi.h +++ b/drivers/staging/dgnc/digi.h @@ -1,50 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright 2003 Digi International (www.digi.com) * Scott H Kilau <Scott_Kilau at digi dot com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the - * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR - * PURPOSE. See the GNU General Public License for more details. */ #ifndef _DIGI_H #define _DIGI_H -#ifndef TIOCM_LE -#define TIOCM_LE 0x01 /* line enable */ -#define TIOCM_DTR 0x02 /* data terminal ready */ -#define TIOCM_RTS 0x04 /* request to send */ -#define TIOCM_ST 0x08 /* secondary transmit */ -#define TIOCM_SR 0x10 /* secondary receive */ -#define TIOCM_CTS 0x20 /* clear to send */ -#define TIOCM_CAR 0x40 /* carrier detect */ -#define TIOCM_RNG 0x80 /* ring indicator */ -#define TIOCM_DSR 0x100 /* data set ready */ -#define TIOCM_RI TIOCM_RNG /* ring (alternate) */ -#define TIOCM_CD TIOCM_CAR /* carrier detect (alt) */ -#endif - -#if !defined(TIOCMSET) -#define TIOCMSET (('d' << 8) | 252) /* set modem ctrl state */ -#define TIOCMGET (('d' << 8) | 253) /* set modem ctrl state */ -#endif - -#if !defined(TIOCMBIC) -#define TIOCMBIC (('d' << 8) | 254) /* set modem ctrl state */ -#define TIOCMBIS (('d' << 8) | 255) /* set modem ctrl state */ -#endif - #define DIGI_GETA (('e' << 8) | 94) /* Read params */ #define DIGI_SETA (('e' << 8) | 95) /* Set params */ #define DIGI_SETAW (('e' << 8) | 96) /* Drain & set params */ #define DIGI_SETAF (('e' << 8) | 97) /* Drain, flush & set params */ -#define DIGI_GET_NI_INFO (('d' << 8) | 250) /* Non-intelligent state info */ #define DIGI_LOOPBACK (('d' << 8) | 252) /* Enable/disable UART * internal loopback */ @@ -88,49 +54,6 @@ struct digi_t { }; /** - * struct digi_dinfo - Driver status information. - * @dinfo_nboards: Number of boards configured. - * @dinfo_reserved: Not used, for future expansion. - * @dinfio_version: Driver version. - */ -struct digi_dinfo { - unsigned int dinfo_nboards; - char dinfo_reserved[12]; - char dinfo_version[16]; -}; - -#define DIGI_GETDD (('d' << 8) | 248) /* get driver info */ - -/** - * struct digi_info - Ioctl commands for per board information. - * - * Physsize and memsize differ when board has "windowed" memory. - * - * @info_bdnum: Board number (0 based). - * @info_ioport: IO port address. - * @indo_physaddr: Memory address. - * @info_physize: Size of host memory window. - * @info_memsize: Amount of dual-port memory on board. - * @info_bdtype: Board type. - * @info_nports: Number of ports. - * @info_bdstate: Board state. - * @info_reserved: Not used, for future expansion. - */ -struct digi_info { - unsigned int info_bdnum; - unsigned int info_ioport; - unsigned int info_physaddr; - unsigned int info_physsize; - unsigned int info_memsize; - unsigned short info_bdtype; - unsigned short info_nports; - char info_bdstate; - char info_reserved[7]; -}; - -#define DIGI_GETBD (('d' << 8) | 249) /* get board info */ - -/** * struct digi_getbuffer - Holds buffer use counts. */ struct digi_getbuffer { @@ -161,10 +84,6 @@ struct digi_getcounter { unsigned long tbytes; }; -/* Board State Definitions */ -#define BD_RUNNING 0x0 -#define BD_NOFEP 0x5 - #define DIGI_SETCUSTOMBAUD _IOW('e', 106, int) /* Set integer baud rate */ #define DIGI_GETCUSTOMBAUD _IOR('e', 107, int) /* Get integer baud rate */ @@ -204,11 +123,6 @@ struct ni_info { unsigned int baud; }; -#define T_CLASSIC 0002 -#define T_PCIBUS 0400 -#define T_NEO_EXPRESS 0001 -#define T_NEO 0000 - #define TTY_FLIPBUF_SIZE 512 #endif /* _DIGI_H */ diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c index bb010cb98a1c..7517001fb8f0 100644 --- a/drivers/staging/emxx_udc/emxx_udc.c +++ b/drivers/staging/emxx_udc/emxx_udc.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * drivers/usb/gadget/emxx_udc.c * EMXX FCD (Function Controller Driver) for USB. * * Copyright (C) 2010 Renesas Electronics Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/kernel.h> diff --git a/drivers/staging/emxx_udc/emxx_udc.h b/drivers/staging/emxx_udc/emxx_udc.h index 928d531a5115..8337e38c238a 100644 --- a/drivers/staging/emxx_udc/emxx_udc.h +++ b/drivers/staging/emxx_udc/emxx_udc.h @@ -1,16 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * EMXX FCD (Function Controller Driver) for USB. * * Copyright (C) 2010 Renesas Electronics Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _LINUX_EMXX_H diff --git a/drivers/staging/fbtft/Kconfig b/drivers/staging/fbtft/Kconfig index dba676761d72..84b2e7ebc024 100644 --- a/drivers/staging/fbtft/Kconfig +++ b/drivers/staging/fbtft/Kconfig @@ -135,12 +135,6 @@ config FB_TFT_SSD1306 help Framebuffer support for SSD1306 -config FB_TFT_SSD1325 - tristate "FB driver for the SSD1325 OLED Controller" - depends on FB_TFT - help - Framebuffer support for SSD1305 - config FB_TFT_SSD1331 tristate "FB driver for the SSD1331 LCD Controller" depends on FB_TFT diff --git a/drivers/staging/fbtft/fb_agm1264k-fl.c b/drivers/staging/fbtft/fb_agm1264k-fl.c index 456a8dd65caf..f6f30f5bf15a 100644 --- a/drivers/staging/fbtft/fb_agm1264k-fl.c +++ b/drivers/staging/fbtft/fb_agm1264k-fl.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for Two KS0108 LCD controllers in AGM1264K-FL display * * Copyright (C) 2014 ololoshka2871 - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_bd663474.c b/drivers/staging/fbtft/fb_bd663474.c index 6010e6cbbd72..a58c514f4721 100644 --- a/drivers/staging/fbtft/fb_bd663474.c +++ b/drivers/staging/fbtft/fb_bd663474.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the uPD161704 LCD Controller * @@ -6,16 +7,6 @@ * Based on fb_ili9325.c by Noralf Tronnes * Based on ili9325.c by Jeroen Domburg * Init code from UTFT library by Henning Karlsen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_hx8340bn.c b/drivers/staging/fbtft/fb_hx8340bn.c index fbd5ef525243..d47dcf31fffb 100644 --- a/drivers/staging/fbtft/fb_hx8340bn.c +++ b/drivers/staging/fbtft/fb_hx8340bn.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the HX8340BN LCD Controller * @@ -7,16 +8,6 @@ * This is done by transferring eight 9-bit words in 9 bytes. * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_hx8347d.c b/drivers/staging/fbtft/fb_hx8347d.c index bbf78f8644a8..0b605303813e 100644 --- a/drivers/staging/fbtft/fb_hx8347d.c +++ b/drivers/staging/fbtft/fb_hx8347d.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the HX8347D LCD Controller * * Copyright (C) 2013 Christian Vogelgsang * * Based on driver code found here: https://github.com/watterott/r61505u-Adapter - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_hx8353d.c b/drivers/staging/fbtft/fb_hx8353d.c index 2c18051a44b3..3e73b69b6a27 100644 --- a/drivers/staging/fbtft/fb_hx8353d.c +++ b/drivers/staging/fbtft/fb_hx8353d.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the HX8353D LCD Controller * * Copyright (c) 2014 Petr Olivka * Copyright (c) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_hx8357d.c b/drivers/staging/fbtft/fb_hx8357d.c index 32e6efe1d0a7..94a357e8fdf6 100644 --- a/drivers/staging/fbtft/fb_hx8357d.c +++ b/drivers/staging/fbtft/fb_hx8357d.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the HX8357D LCD Controller * Copyright (C) 2015 Adafruit Industries @@ -6,16 +7,6 @@ * Copyright (C) 2013 Christian Vogelgsang * * Based on driver code found here: https://github.com/watterott/r61505u-Adapter - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_hx8357d.h b/drivers/staging/fbtft/fb_hx8357d.h index e281921d4a97..6180b093f94f 100644 --- a/drivers/staging/fbtft/fb_hx8357d.h +++ b/drivers/staging/fbtft/fb_hx8357d.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: MIT */ /* * This is our library for the Adafruit ILI9341 Breakout and Shield * ----> http://www.adafruit.com/products/1651 diff --git a/drivers/staging/fbtft/fb_ili9163.c b/drivers/staging/fbtft/fb_ili9163.c index 045cadc3bc65..fd3dd671509f 100644 --- a/drivers/staging/fbtft/fb_ili9163.c +++ b/drivers/staging/fbtft/fb_ili9163.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9163 LCD Controller * @@ -5,16 +6,6 @@ * * Based on ili9325.c by Noralf Tronnes and * .S.U.M.O.T.O.Y. by Max MC Costa (https://github.com/sumotoy/TFT_ILI9163C). - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ili9320.c b/drivers/staging/fbtft/fb_ili9320.c index 20ba86da028b..501eee7dce4c 100644 --- a/drivers/staging/fbtft/fb_ili9320.c +++ b/drivers/staging/fbtft/fb_ili9320.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9320 LCD Controller * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ili9325.c b/drivers/staging/fbtft/fb_ili9325.c index 7f9e9b25490e..d6b1d4be9ff4 100644 --- a/drivers/staging/fbtft/fb_ili9325.c +++ b/drivers/staging/fbtft/fb_ili9325.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9325 LCD Controller * * Copyright (C) 2013 Noralf Tronnes * * Based on ili9325.c by Jeroen Domburg - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ili9340.c b/drivers/staging/fbtft/fb_ili9340.c index 0711121c303c..430f21e50f4d 100644 --- a/drivers/staging/fbtft/fb_ili9340.c +++ b/drivers/staging/fbtft/fb_ili9340.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9340 LCD Controller * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ili9341.c b/drivers/staging/fbtft/fb_ili9341.c index 21a98e9e1a14..a10e8c9de438 100644 --- a/drivers/staging/fbtft/fb_ili9341.c +++ b/drivers/staging/fbtft/fb_ili9341.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9341 LCD display controller * @@ -8,16 +9,6 @@ * * Copyright (C) 2013 Christian Vogelgsang * Based on adafruit22fb.c by Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ili9481.c b/drivers/staging/fbtft/fb_ili9481.c index 7f182a1c084c..19eba085ea53 100644 --- a/drivers/staging/fbtft/fb_ili9481.c +++ b/drivers/staging/fbtft/fb_ili9481.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9481 LCD Controller * * Copyright (c) 2014 Petr Olivka * Copyright (c) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ili9486.c b/drivers/staging/fbtft/fb_ili9486.c index ddd07a64c48a..66210a7137fc 100644 --- a/drivers/staging/fbtft/fb_ili9486.c +++ b/drivers/staging/fbtft/fb_ili9486.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ILI9486 LCD Controller * * Copyright (C) 2014 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_pcd8544.c b/drivers/staging/fbtft/fb_pcd8544.c index 87f678a314cc..32172f8f79f0 100644 --- a/drivers/staging/fbtft/fb_pcd8544.c +++ b/drivers/staging/fbtft/fb_pcd8544.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the PCD8544 LCD Controller * @@ -5,16 +6,6 @@ * Any pixel value except 0 turns the pixel on. * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c index 6d1cad85957b..5d3b76ca74d8 100644 --- a/drivers/staging/fbtft/fb_ra8875.c +++ b/drivers/staging/fbtft/fb_ra8875.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FBTFT driver for the RA8875 LCD Controller * Copyright by Pf@nne & NOTRO - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_s6d02a1.c b/drivers/staging/fbtft/fb_s6d02a1.c index c12855bb6891..75295760f491 100644 --- a/drivers/staging/fbtft/fb_s6d02a1.c +++ b/drivers/staging/fbtft/fb_s6d02a1.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the S6D02A1 LCD Controller * * Based on fb_st7735r.c by Noralf Tronnes * Init code from UTFT library by Henning Karlsen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_s6d1121.c b/drivers/staging/fbtft/fb_s6d1121.c index 3b36ed50d491..b90244259d43 100644 --- a/drivers/staging/fbtft/fb_s6d1121.c +++ b/drivers/staging/fbtft/fb_s6d1121.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the S6D1121 LCD Controller * @@ -6,16 +7,6 @@ * Based on fb_ili9325.c by Noralf Tronnes * Based on ili9325.c by Jeroen Domburg * Init code from UTFT library by Henning Karlsen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_sh1106.c b/drivers/staging/fbtft/fb_sh1106.c index 89c27a440305..3fc18c0a6f11 100644 --- a/drivers/staging/fbtft/fb_sh1106.c +++ b/drivers/staging/fbtft/fb_sh1106.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the SH1106 OLED Controller * Based on the SSD1306 driver by Noralf Tronnes * * Copyright (C) 2017 Heiner Kallweit - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ssd1289.c b/drivers/staging/fbtft/fb_ssd1289.c index 129e175fcd7e..cbf22e1f4b61 100644 --- a/drivers/staging/fbtft/fb_ssd1289.c +++ b/drivers/staging/fbtft/fb_ssd1289.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the SSD1289 LCD Controller * * Copyright (C) 2013 Noralf Tronnes * * Init sequence taken from ITDB02_Graph16.cpp - (C)2010-2011 Henning Karlsen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ssd1305.c b/drivers/staging/fbtft/fb_ssd1305.c index 33c03872ca84..3515888d94c9 100644 --- a/drivers/staging/fbtft/fb_ssd1305.c +++ b/drivers/staging/fbtft/fb_ssd1305.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the SSD1305 OLED Controller * * based on SSD1306 driver by Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ssd1306.c b/drivers/staging/fbtft/fb_ssd1306.c index 96c58de85288..9276be499303 100644 --- a/drivers/staging/fbtft/fb_ssd1306.c +++ b/drivers/staging/fbtft/fb_ssd1306.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the SSD1306 OLED Controller * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ssd1325.c b/drivers/staging/fbtft/fb_ssd1325.c index b7e40c24f58e..1a469b3c92d4 100644 --- a/drivers/staging/fbtft/fb_ssd1325.c +++ b/drivers/staging/fbtft/fb_ssd1325.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the SSD1325 OLED Controller - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c index e4a759b54ba0..383e197cf56a 100644 --- a/drivers/staging/fbtft/fb_ssd1331.c +++ b/drivers/staging/fbtft/fb_ssd1331.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> diff --git a/drivers/staging/fbtft/fb_ssd1351.c b/drivers/staging/fbtft/fb_ssd1351.c index e62235d4d9e7..b8ef75f5e856 100644 --- a/drivers/staging/fbtft/fb_ssd1351.c +++ b/drivers/staging/fbtft/fb_ssd1351.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> diff --git a/drivers/staging/fbtft/fb_st7735r.c b/drivers/staging/fbtft/fb_st7735r.c index d98522a39344..631208bd3a17 100644 --- a/drivers/staging/fbtft/fb_st7735r.c +++ b/drivers/staging/fbtft/fb_st7735r.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ST7735R LCD Controller * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_st7789v.c b/drivers/staging/fbtft/fb_st7789v.c index a5d7c87557f8..7d7573a7b615 100644 --- a/drivers/staging/fbtft/fb_st7789v.c +++ b/drivers/staging/fbtft/fb_st7789v.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the ST7789V LCD Controller * * Copyright (C) 2015 Dennis Menschel - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/bitops.h> diff --git a/drivers/staging/fbtft/fb_tinylcd.c b/drivers/staging/fbtft/fb_tinylcd.c index 097e71cfef62..e463b0ddf16d 100644 --- a/drivers/staging/fbtft/fb_tinylcd.c +++ b/drivers/staging/fbtft/fb_tinylcd.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Custom FB driver for tinylcd.com display * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_tls8204.c b/drivers/staging/fbtft/fb_tls8204.c index 4302e822de3b..277b6ed9c725 100644 --- a/drivers/staging/fbtft/fb_tls8204.c +++ b/drivers/staging/fbtft/fb_tls8204.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the TLS8204 LCD Controller * @@ -6,16 +7,6 @@ * * Copyright (C) 2013 Noralf Tronnes * Copyright (C) 2014 Michael Hope (adapted for the TLS8204) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_uc1611.c b/drivers/staging/fbtft/fb_uc1611.c index 8eb5e7f10fb5..4d65567eefe2 100644 --- a/drivers/staging/fbtft/fb_uc1611.c +++ b/drivers/staging/fbtft/fb_uc1611.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the UltraChip UC1611 LCD controller * * The display is 4-bit grayscale (16 shades) 240x160. * * Copyright (C) 2015 Henri Chain - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c index 78899a172c7e..0a3531d6eb39 100644 --- a/drivers/staging/fbtft/fb_uc1701.c +++ b/drivers/staging/fbtft/fb_uc1701.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the UC1701 LCD Controller * @@ -5,16 +6,6 @@ * Any pixel value except 0 turns the pixel on. * * Copyright (C) 2014 Juergen Holzmann - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_upd161704.c b/drivers/staging/fbtft/fb_upd161704.c index 970b8430eccf..acc425fdf34e 100644 --- a/drivers/staging/fbtft/fb_upd161704.c +++ b/drivers/staging/fbtft/fb_upd161704.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the uPD161704 LCD Controller * @@ -6,16 +7,6 @@ * Based on fb_ili9325.c by Noralf Tronnes * Based on ili9325.c by Jeroen Domburg * Init code from UTFT library by Henning Karlsen - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fb_watterott.c b/drivers/staging/fbtft/fb_watterott.c index 180e5be6fa4f..bfd1527f20f7 100644 --- a/drivers/staging/fbtft/fb_watterott.c +++ b/drivers/staging/fbtft/fb_watterott.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FB driver for the Watterott LCD Controller * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index 6d0363deba61..0e36b66ae5f7 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2013 Noralf Tronnes * * This driver is inspired by: * st7735fb.c, Copyright (C) 2011, Matt Porter * broadsheetfb.c, Copyright (C) 2008, Jaya Kumar - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> @@ -1367,20 +1358,18 @@ int fbtft_probe_common(struct fbtft_display *display, } /* write register functions */ - if (display->regwidth == 8 && display->buswidth == 8) { + if (display->regwidth == 8 && display->buswidth == 8) par->fbtftops.write_register = fbtft_write_reg8_bus8; - } else - if (display->regwidth == 8 && display->buswidth == 9 && par->spi) { + else if (display->regwidth == 8 && display->buswidth == 9 && par->spi) par->fbtftops.write_register = fbtft_write_reg8_bus9; - } else if (display->regwidth == 16 && display->buswidth == 8) { + else if (display->regwidth == 16 && display->buswidth == 8) par->fbtftops.write_register = fbtft_write_reg16_bus8; - } else if (display->regwidth == 16 && display->buswidth == 16) { + else if (display->regwidth == 16 && display->buswidth == 16) par->fbtftops.write_register = fbtft_write_reg16_bus16; - } else { + else dev_warn(dev, - "no default functions for regwidth=%d and buswidth=%d\n", - display->regwidth, display->buswidth); - } + "no default functions for regwidth=%d and buswidth=%d\n", + display->regwidth, display->buswidth); /* write_vmem() functions */ if (display->buswidth == 8) diff --git a/drivers/staging/fbtft/fbtft.h b/drivers/staging/fbtft/fbtft.h index 488ab788138e..e19e64e0d094 100644 --- a/drivers/staging/fbtft/fbtft.h +++ b/drivers/staging/fbtft/fbtft.h @@ -1,16 +1,5 @@ -/* - * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (C) 2013 Noralf Tronnes */ #ifndef __LINUX_FBTFT_H #define __LINUX_FBTFT_H diff --git a/drivers/staging/fbtft/fbtft_device.c b/drivers/staging/fbtft/fbtft_device.c index 0d974738c1c4..ec8477674b7d 100644 --- a/drivers/staging/fbtft/fbtft_device.c +++ b/drivers/staging/fbtft/fbtft_device.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * * Copyright (C) 2013, Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #define pr_fmt(fmt) "fbtft_device: " fmt diff --git a/drivers/staging/fbtft/flexfb.c b/drivers/staging/fbtft/flexfb.c index 7134624a16c2..f676c9b853f1 100644 --- a/drivers/staging/fbtft/flexfb.c +++ b/drivers/staging/fbtft/flexfb.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Generic FB driver for TFT LCD displays * * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> diff --git a/drivers/staging/fbtft/internal.h b/drivers/staging/fbtft/internal.h index 25b9bf6f54bb..ae2ff4a4a472 100644 --- a/drivers/staging/fbtft/internal.h +++ b/drivers/staging/fbtft/internal.h @@ -1,17 +1,5 @@ -/* - * Copyright (C) 2013 Noralf Tronnes - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Copyright (C) 2013 Noralf Tronnes */ #ifndef __LINUX_FBTFT_INTERNAL_H #define __LINUX_FBTFT_INTERNAL_H diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c index 0d8ed002adcb..2817e67df3d5 100644 --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c @@ -230,7 +230,8 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv, static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, struct dpaa2_eth_channel *ch, const struct dpaa2_fd *fd, - struct napi_struct *napi) + struct napi_struct *napi, + u16 queue_id) { dma_addr_t addr = dpaa2_fd_get_addr(fd); u8 fd_format = dpaa2_fd_get_format(fd); @@ -249,7 +250,7 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr); dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE, DMA_FROM_DEVICE); - fas = dpaa2_get_fas(vaddr); + fas = dpaa2_get_fas(vaddr, false); prefetch(fas); buf_data = vaddr + dpaa2_fd_get_offset(fd); prefetch(buf_data); @@ -281,6 +282,7 @@ static void dpaa2_eth_rx(struct dpaa2_eth_priv *priv, } skb->protocol = eth_type_trans(skb, priv->net_dev); + skb_record_rx_queue(skb, queue_id); percpu_stats->rx_packets++; percpu_stats->rx_bytes += dpaa2_fd_get_len(fd); @@ -325,7 +327,7 @@ static int consume_frames(struct dpaa2_eth_channel *ch) fq = (struct dpaa2_eth_fq *)dpaa2_dq_fqd_ctx(dq); fq->stats.frames++; - fq->consume(priv, ch, fd, &ch->napi); + fq->consume(priv, ch, fd, &ch->napi, fq->flowid); cleaned++; } while (!is_last); @@ -348,7 +350,6 @@ static int build_sg_fd(struct dpaa2_eth_priv *priv, int num_sg; int num_dma_bufs; struct dpaa2_eth_swa *swa; - struct dpaa2_fas *fas; /* Create and map scatterlist. * We don't advertise NETIF_F_FRAGLIST, so skb_to_sgvec() will not have @@ -379,15 +380,6 @@ static int build_sg_fd(struct dpaa2_eth_priv *priv, goto sgt_buf_alloc_failed; } sgt_buf = PTR_ALIGN(sgt_buf, DPAA2_ETH_TX_BUF_ALIGN); - - /* PTA from egress side is passed as is to the confirmation side so - * we need to clear some fields here in order to find consistent values - * on TX confirmation. We are clearing FAS (Frame Annotation Status) - * field from the hardware annotation area - */ - fas = dpaa2_get_fas(sgt_buf); - memset(fas, 0, DPAA2_FAS_SIZE); - sgt = (struct dpaa2_sg_entry *)(sgt_buf + priv->tx_data_offset); /* Fill in the HW SGT structure. @@ -424,8 +416,7 @@ static int build_sg_fd(struct dpaa2_eth_priv *priv, dpaa2_fd_set_format(fd, dpaa2_fd_sg); dpaa2_fd_set_addr(fd, addr); dpaa2_fd_set_len(fd, skb->len); - dpaa2_fd_set_ctrl(fd, DPAA2_FD_CTRL_ASAL | DPAA2_FD_CTRL_PTA | - DPAA2_FD_CTRL_PTV1); + dpaa2_fd_set_ctrl(fd, DPAA2_FD_CTRL_PTA | DPAA2_FD_CTRL_PTV1); return 0; @@ -444,22 +435,19 @@ static int build_single_fd(struct dpaa2_eth_priv *priv, struct dpaa2_fd *fd) { struct device *dev = priv->net_dev->dev.parent; - u8 *buffer_start; - struct dpaa2_fas *fas; + u8 *buffer_start, *aligned_start; struct sk_buff **skbh; dma_addr_t addr; - buffer_start = PTR_ALIGN(skb->data - priv->tx_data_offset - - DPAA2_ETH_TX_BUF_ALIGN, - DPAA2_ETH_TX_BUF_ALIGN); + buffer_start = skb->data - dpaa2_eth_needed_headroom(priv, skb); - /* PTA from egress side is passed as is to the confirmation side so - * we need to clear some fields here in order to find consistent values - * on TX confirmation. We are clearing FAS (Frame Annotation Status) - * field from the hardware annotation area + /* If there's enough room to align the FD address, do it. + * It will help hardware optimize accesses. */ - fas = dpaa2_get_fas(buffer_start); - memset(fas, 0, DPAA2_FAS_SIZE); + aligned_start = PTR_ALIGN(buffer_start - DPAA2_ETH_TX_BUF_ALIGN, + DPAA2_ETH_TX_BUF_ALIGN); + if (aligned_start >= skb->head) + buffer_start = aligned_start; /* Store a backpointer to the skb at the beginning of the buffer * (in the private data area) such that we can release it @@ -478,8 +466,7 @@ static int build_single_fd(struct dpaa2_eth_priv *priv, dpaa2_fd_set_offset(fd, (u16)(skb->data - buffer_start)); dpaa2_fd_set_len(fd, skb->len); dpaa2_fd_set_format(fd, dpaa2_fd_single); - dpaa2_fd_set_ctrl(fd, DPAA2_FD_CTRL_ASAL | DPAA2_FD_CTRL_PTA | - DPAA2_FD_CTRL_PTV1); + dpaa2_fd_set_ctrl(fd, DPAA2_FD_CTRL_PTA | DPAA2_FD_CTRL_PTV1); return 0; } @@ -494,8 +481,7 @@ static int build_single_fd(struct dpaa2_eth_priv *priv, * to be checked if we're on the confirmation path. */ static void free_tx_fd(const struct dpaa2_eth_priv *priv, - const struct dpaa2_fd *fd, - u32 *status) + const struct dpaa2_fd *fd) { struct device *dev = priv->net_dev->dev.parent; dma_addr_t fd_addr; @@ -506,11 +492,9 @@ static void free_tx_fd(const struct dpaa2_eth_priv *priv, int num_sg, num_dma_bufs; struct dpaa2_eth_swa *swa; u8 fd_format = dpaa2_fd_get_format(fd); - struct dpaa2_fas *fas; fd_addr = dpaa2_fd_get_addr(fd); skbh = dpaa2_iova_to_virt(priv->iommu_domain, fd_addr); - fas = dpaa2_get_fas(skbh); if (fd_format == dpaa2_fd_single) { skb = *skbh; @@ -537,19 +521,10 @@ static void free_tx_fd(const struct dpaa2_eth_priv *priv, sizeof(struct dpaa2_sg_entry) * (1 + num_dma_bufs); dma_unmap_single(dev, fd_addr, unmap_size, DMA_BIDIRECTIONAL); } else { - /* Unsupported format, mark it as errored and give up */ - if (status) - *status = ~0; + netdev_dbg(priv->net_dev, "Invalid FD format\n"); return; } - /* Read the status from the Frame Annotation after we unmap the first - * buffer but before we free it. The caller function is responsible - * for checking the status value. - */ - if (status) - *status = le32_to_cpu(fas->status); - /* Free SGT buffer kmalloc'ed on tx */ if (fd_format != dpaa2_fd_single) kfree(skbh); @@ -566,19 +541,22 @@ static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev) struct dpaa2_eth_drv_stats *percpu_extras; struct dpaa2_eth_fq *fq; u16 queue_mapping; + unsigned int needed_headroom; int err, i; percpu_stats = this_cpu_ptr(priv->percpu_stats); percpu_extras = this_cpu_ptr(priv->percpu_extras); - if (unlikely(skb_headroom(skb) < dpaa2_eth_needed_headroom(priv))) { + needed_headroom = dpaa2_eth_needed_headroom(priv, skb); + if (skb_headroom(skb) < needed_headroom) { struct sk_buff *ns; - ns = skb_realloc_headroom(skb, dpaa2_eth_needed_headroom(priv)); + ns = skb_realloc_headroom(skb, needed_headroom); if (unlikely(!ns)) { percpu_stats->tx_dropped++; goto err_alloc_headroom; } + percpu_extras->tx_reallocs++; dev_kfree_skb(skb); skb = ns; } @@ -612,13 +590,15 @@ static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev) /* Tracing point */ trace_dpaa2_tx_fd(net_dev, &fd); - /* TxConf FQ selection primarily based on cpu affinity; this is - * non-migratable context, so it's safe to call smp_processor_id(). + /* TxConf FQ selection relies on queue id from the stack. + * In case of a forwarded frame from another DPNI interface, we choose + * a queue affined to the same core that processed the Rx frame */ - queue_mapping = smp_processor_id() % dpaa2_eth_queue_count(priv); + queue_mapping = skb_get_queue_mapping(skb); fq = &priv->fq[queue_mapping]; for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) { - err = dpaa2_io_service_enqueue_qd(NULL, priv->tx_qdid, 0, + err = dpaa2_io_service_enqueue_qd(fq->channel->dpio, + priv->tx_qdid, 0, fq->tx_qdbin, &fd); if (err != -EBUSY) break; @@ -627,7 +607,7 @@ static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev) if (unlikely(err < 0)) { percpu_stats->tx_errors++; /* Clean up everything, including freeing the skb */ - free_tx_fd(priv, &fd, NULL); + free_tx_fd(priv, &fd); } else { percpu_stats->tx_packets++; percpu_stats->tx_bytes += dpaa2_fd_get_len(&fd); @@ -646,13 +626,12 @@ err_alloc_headroom: static void dpaa2_eth_tx_conf(struct dpaa2_eth_priv *priv, struct dpaa2_eth_channel *ch, const struct dpaa2_fd *fd, - struct napi_struct *napi __always_unused) + struct napi_struct *napi __always_unused, + u16 queue_id __always_unused) { struct rtnl_link_stats64 *percpu_stats; struct dpaa2_eth_drv_stats *percpu_extras; - u32 status = 0; u32 fd_errors; - bool has_fas_errors = false; /* Tracing point */ trace_dpaa2_tx_conf_fd(priv->net_dev, fd); @@ -663,29 +642,18 @@ static void dpaa2_eth_tx_conf(struct dpaa2_eth_priv *priv, /* Check frame errors in the FD field */ fd_errors = dpaa2_fd_get_ctrl(fd) & DPAA2_FD_TX_ERR_MASK; - if (unlikely(fd_errors)) { - /* We only check error bits in the FAS field if corresponding - * FAERR bit is set in FD and the FAS field is marked as valid - */ - has_fas_errors = (fd_errors & DPAA2_FD_CTRL_FAERR) && - !!(dpaa2_fd_get_frc(fd) & DPAA2_FD_FRC_FASV); - if (net_ratelimit()) - netdev_dbg(priv->net_dev, "TX frame FD error: 0x%08x\n", - fd_errors); - } - - free_tx_fd(priv, fd, has_fas_errors ? &status : NULL); + free_tx_fd(priv, fd); if (likely(!fd_errors)) return; + if (net_ratelimit()) + netdev_dbg(priv->net_dev, "TX frame FD error: 0x%08x\n", + fd_errors); + percpu_stats = this_cpu_ptr(priv->percpu_stats); /* Tx-conf logically pertains to the egress path. */ percpu_stats->tx_errors++; - - if (has_fas_errors && net_ratelimit()) - netdev_dbg(priv->net_dev, "TX frame FAS error: 0x%08x\n", - status & DPAA2_FAS_TX_ERR_MASK); } static int set_rx_csum(struct dpaa2_eth_priv *priv, bool enable) @@ -752,7 +720,8 @@ static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count) /* Perform a single release command to add buffers * to the specified buffer pool */ -static int add_bufs(struct dpaa2_eth_priv *priv, u16 bpid) +static int add_bufs(struct dpaa2_eth_priv *priv, + struct dpaa2_eth_channel *ch, u16 bpid) { struct device *dev = priv->net_dev->dev.parent; u64 buf_array[DPAA2_ETH_BUFS_PER_CMD]; @@ -786,7 +755,7 @@ static int add_bufs(struct dpaa2_eth_priv *priv, u16 bpid) release_bufs: /* In case the portal is busy, retry until successful */ - while ((err = dpaa2_io_service_release(NULL, bpid, + while ((err = dpaa2_io_service_release(ch->dpio, bpid, buf_array, i)) == -EBUSY) cpu_relax(); @@ -827,7 +796,7 @@ static int seed_pool(struct dpaa2_eth_priv *priv, u16 bpid) for (j = 0; j < priv->num_channels; j++) { for (i = 0; i < DPAA2_ETH_NUM_BUFS; i += DPAA2_ETH_BUFS_PER_CMD) { - new_count = add_bufs(priv, bpid); + new_count = add_bufs(priv, priv->channel[j], bpid); priv->channel[j]->buf_count += new_count; if (new_count < DPAA2_ETH_BUFS_PER_CMD) { @@ -885,7 +854,7 @@ static int refill_pool(struct dpaa2_eth_priv *priv, return 0; do { - new_count = add_bufs(priv, bpid); + new_count = add_bufs(priv, ch, bpid); if (unlikely(!new_count)) { /* Out of memory; abort for now, we'll try later on */ break; @@ -906,7 +875,8 @@ static int pull_channel(struct dpaa2_eth_channel *ch) /* Retry while portal is busy */ do { - err = dpaa2_io_service_pull_channel(NULL, ch->ch_id, ch->store); + err = dpaa2_io_service_pull_channel(ch->dpio, ch->ch_id, + ch->store); dequeues++; cpu_relax(); } while (err == -EBUSY); @@ -956,7 +926,7 @@ static int dpaa2_eth_poll(struct napi_struct *napi, int budget) if (cleaned < budget && napi_complete_done(napi, cleaned)) { /* Re-enable data available notifications */ do { - err = dpaa2_io_service_rearm(NULL, &ch->nctx); + err = dpaa2_io_service_rearm(ch->dpio, &ch->nctx); cpu_relax(); } while (err == -EBUSY); WARN_ONCE(err, "CDAN notifications rearm failed on core %d", @@ -1564,7 +1534,8 @@ static int setup_dpio(struct dpaa2_eth_priv *priv) nctx->desired_cpu = i; /* Register the new context */ - err = dpaa2_io_service_register(NULL, nctx); + channel->dpio = dpaa2_io_service_select(i); + err = dpaa2_io_service_register(channel->dpio, nctx); if (err) { dev_dbg(dev, "No affine DPIO for cpu %d\n", i); /* If no affine DPIO for this core, there's probably @@ -1604,7 +1575,7 @@ static int setup_dpio(struct dpaa2_eth_priv *priv) return 0; err_set_cdan: - dpaa2_io_service_deregister(NULL, nctx); + dpaa2_io_service_deregister(channel->dpio, nctx); err_service_reg: free_channel(priv, channel); err_alloc_ch: @@ -1627,7 +1598,7 @@ static void free_dpio(struct dpaa2_eth_priv *priv) /* deregister CDAN notifications and free channels */ for (i = 0; i < priv->num_channels; i++) { ch = priv->channel[i]; - dpaa2_io_service_deregister(NULL, &ch->nctx); + dpaa2_io_service_deregister(ch->dpio, &ch->nctx); free_channel(priv, ch); } } @@ -1653,9 +1624,10 @@ static struct dpaa2_eth_channel *get_affine_channel(struct dpaa2_eth_priv *priv, static void set_fq_affinity(struct dpaa2_eth_priv *priv) { struct device *dev = priv->net_dev->dev.parent; + struct cpumask xps_mask; struct dpaa2_eth_fq *fq; int rx_cpu, txc_cpu; - int i; + int i, err; /* For each FQ, pick one channel/CPU to deliver frames to. * This may well change at runtime, either through irqbalance or @@ -1674,6 +1646,17 @@ static void set_fq_affinity(struct dpaa2_eth_priv *priv) break; case DPAA2_TX_CONF_FQ: fq->target_cpu = txc_cpu; + + /* Tell the stack to affine to txc_cpu the Tx queue + * associated with the confirmation one + */ + cpumask_clear(&xps_mask); + cpumask_set_cpu(txc_cpu, &xps_mask); + err = netif_set_xps_queue(priv->net_dev, &xps_mask, + fq->flowid); + if (err) + dev_err(dev, "Error setting XPS queue\n"); + txc_cpu = cpumask_next(txc_cpu, &priv->dpio_cpumask); if (txc_cpu >= nr_cpu_ids) txc_cpu = cpumask_first(&priv->dpio_cpumask); @@ -1791,10 +1774,8 @@ static int set_buffer_layout(struct dpaa2_eth_priv *priv) priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN; /* tx buffer */ - buf_layout.pass_frame_status = true; buf_layout.private_data_size = DPAA2_ETH_SWA_SIZE; - buf_layout.options = DPNI_BUF_LAYOUT_OPT_FRAME_STATUS | - DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE; + buf_layout.options = DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE; err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token, DPNI_QUEUE_TX, &buf_layout); if (err) { @@ -1803,7 +1784,7 @@ static int set_buffer_layout(struct dpaa2_eth_priv *priv) } /* tx-confirm buffer */ - buf_layout.options = DPNI_BUF_LAYOUT_OPT_FRAME_STATUS; + buf_layout.options = 0; err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token, DPNI_QUEUE_TX_CONFIRM, &buf_layout); if (err) { @@ -1826,6 +1807,7 @@ static int set_buffer_layout(struct dpaa2_eth_priv *priv) priv->tx_data_offset); /* rx buffer */ + buf_layout.pass_frame_status = true; buf_layout.pass_parser_result = true; buf_layout.data_align = priv->rx_buf_align; buf_layout.data_head_room = dpaa2_eth_rx_head_room(priv); @@ -2273,7 +2255,6 @@ static int netdev_init(struct net_device *net_dev) { struct device *dev = net_dev->dev.parent; struct dpaa2_eth_priv *priv = netdev_priv(net_dev); - u16 rx_headroom, req_headroom; u8 bcast_addr[ETH_ALEN]; u8 num_queues; int err; @@ -2292,24 +2273,6 @@ static int netdev_init(struct net_device *net_dev) return err; } - /* Reserve enough space to align buffer as per hardware requirement; - * NOTE: priv->tx_data_offset MUST be initialized at this point. - */ - net_dev->needed_headroom = dpaa2_eth_needed_headroom(priv); - - /* If headroom guaranteed by hardware in the Rx frame buffer is - * smaller than the Tx headroom required by the stack, issue a - * one time warning. This will most likely mean skbs forwarded to - * another DPAA2 network interface will get reallocated, with a - * significant performance impact. - */ - req_headroom = LL_RESERVED_SPACE(net_dev) - ETH_HLEN; - rx_headroom = ALIGN(DPAA2_ETH_RX_HWA_SIZE + - dpaa2_eth_rx_head_room(priv), priv->rx_buf_align); - if (req_headroom > rx_headroom) - dev_info_once(dev, "Required headroom (%d) greater than available (%d)\n", - req_headroom, rx_headroom); - /* Set MTU limits */ net_dev->min_mtu = 68; net_dev->max_mtu = DPAA2_ETH_MAX_MTU; diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h index 5b3ab9f62d5e..e577410fdf4f 100644 --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h @@ -134,7 +134,6 @@ struct dpaa2_eth_swa { DPAA2_FD_CTRL_FAERR) /* Annotation bits in FD CTRL */ -#define DPAA2_FD_CTRL_ASAL 0x00010000 /* ASAL = 64 */ #define DPAA2_FD_CTRL_PTA 0x00800000 #define DPAA2_FD_CTRL_PTV1 0x00400000 @@ -153,10 +152,15 @@ struct dpaa2_fas { #define DPAA2_FAS_SIZE (sizeof(struct dpaa2_fas)) /* Accessors for the hardware annotation fields that we use */ -#define dpaa2_get_hwa(buf_addr) \ - ((void *)(buf_addr) + DPAA2_ETH_SWA_SIZE) -#define dpaa2_get_fas(buf_addr) \ - (struct dpaa2_fas *)(dpaa2_get_hwa(buf_addr) + DPAA2_FAS_OFFSET) +static inline void *dpaa2_get_hwa(void *buf_addr, bool swa) +{ + return buf_addr + (swa ? DPAA2_ETH_SWA_SIZE : 0); +} + +static inline struct dpaa2_fas *dpaa2_get_fas(void *buf_addr, bool swa) +{ + return dpaa2_get_hwa(buf_addr, swa) + DPAA2_FAS_OFFSET; +} /* Error and status bits in the frame annotation status word */ /* Debug frame, otherwise supposed to be discarded */ @@ -203,11 +207,6 @@ struct dpaa2_fas { DPAA2_FAS_BLE | \ DPAA2_FAS_L3CE | \ DPAA2_FAS_L4CE) -/* Tx errors */ -#define DPAA2_FAS_TX_ERR_MASK (DPAA2_FAS_KSE | \ - DPAA2_FAS_EOFHE | \ - DPAA2_FAS_MNLE | \ - DPAA2_FAS_TIDE) /* Time in milliseconds between link state updates */ #define DPAA2_ETH_LINK_STATE_REFRESH 1000 @@ -226,6 +225,7 @@ struct dpaa2_eth_drv_stats { __u64 tx_conf_bytes; __u64 tx_sg_frames; __u64 tx_sg_bytes; + __u64 tx_reallocs; __u64 rx_sg_frames; __u64 rx_sg_bytes; /* Enqueues retried due to portal busy */ @@ -276,7 +276,8 @@ struct dpaa2_eth_fq { void (*consume)(struct dpaa2_eth_priv *, struct dpaa2_eth_channel *, const struct dpaa2_fd *, - struct napi_struct *); + struct napi_struct *, + u16 queue_id); struct dpaa2_eth_fq_stats stats; }; @@ -287,6 +288,7 @@ struct dpaa2_eth_channel { int ch_id; int dpio_id; struct napi_struct napi; + struct dpaa2_io *dpio; struct dpaa2_io_store *store; struct dpaa2_eth_priv *priv; int buf_count; @@ -364,9 +366,13 @@ static inline unsigned int dpaa2_eth_buf_raw_size(struct dpaa2_eth_priv *priv) } static inline -unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv) +unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv, + struct sk_buff *skb) { - return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN - HH_DATA_MOD; + if (skb_is_nonlinear(skb)) + return 0; + + return DPAA2_ETH_SWA_SIZE; } /* Extra headroom space requested to hardware, in order to make sure there's @@ -374,7 +380,8 @@ unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv) */ static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv) { - return dpaa2_eth_needed_headroom(priv) - DPAA2_ETH_RX_HWA_SIZE; + return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN - + DPAA2_ETH_RX_HWA_SIZE; } static int dpaa2_eth_queue_count(struct dpaa2_eth_priv *priv) diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c index ebe8fd6ccf2c..070a3f2a0523 100644 --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c @@ -62,6 +62,7 @@ static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = { "[drv] tx conf bytes", "[drv] tx sg frames", "[drv] tx sg bytes", + "[drv] tx realloc frames", "[drv] rx sg frames", "[drv] rx sg bytes", "[drv] enqueue portal busy", diff --git a/drivers/staging/fsl-mc/Kconfig b/drivers/staging/fsl-mc/Kconfig index 32df07b15e09..3002229bec1b 100644 --- a/drivers/staging/fsl-mc/Kconfig +++ b/drivers/staging/fsl-mc/Kconfig @@ -1 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 source "drivers/staging/fsl-mc/bus/Kconfig" diff --git a/drivers/staging/fsl-mc/Makefile b/drivers/staging/fsl-mc/Makefile index 9c6a00128c65..14683889dabd 100644 --- a/drivers/staging/fsl-mc/Makefile +++ b/drivers/staging/fsl-mc/Makefile @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 # Freescale Management Complex (MC) bus drivers obj-$(CONFIG_FSL_MC_BUS) += bus/ diff --git a/drivers/staging/fsl-mc/README.txt b/drivers/staging/fsl-mc/README.txt deleted file mode 100644 index 524eda1de04f..000000000000 --- a/drivers/staging/fsl-mc/README.txt +++ /dev/null @@ -1,386 +0,0 @@ -Copyright (C) 2015 Freescale Semiconductor Inc. - -DPAA2 (Data Path Acceleration Architecture Gen2) ------------------------------------------------- - -This document provides an overview of the Freescale DPAA2 architecture -and how it is integrated into the Linux kernel. - -Contents summary - -DPAA2 overview - -Overview of DPAA2 objects - -DPAA2 Linux driver architecture overview - -bus driver - -DPRC driver - -allocator - -DPIO driver - -Ethernet - -MAC - -DPAA2 Overview --------------- - -DPAA2 is a hardware architecture designed for high-speeed network -packet processing. DPAA2 consists of sophisticated mechanisms for -processing Ethernet packets, queue management, buffer management, -autonomous L2 switching, virtual Ethernet bridging, and accelerator -(e.g. crypto) sharing. - -A DPAA2 hardware component called the Management Complex (or MC) manages the -DPAA2 hardware resources. The MC provides an object-based abstraction for -software drivers to use the DPAA2 hardware. - -The MC uses DPAA2 hardware resources such as queues, buffer pools, and -network ports to create functional objects/devices such as network -interfaces, an L2 switch, or accelerator instances. - -The MC provides memory-mapped I/O command interfaces (MC portals) -which DPAA2 software drivers use to operate on DPAA2 objects: - -The diagram below shows an overview of the DPAA2 resource management -architecture: - - +--------------------------------------+ - | OS | - | DPAA2 drivers | - | | | - +-----------------------------|--------+ - | - | (create,discover,connect - | config,use,destroy) - | - DPAA2 | - +------------------------| mc portal |-+ - | | | - | +- - - - - - - - - - - - -V- - -+ | - | | | | - | | Management Complex (MC) | | - | | | | - | +- - - - - - - - - - - - - - - -+ | - | | - | Hardware Hardware | - | Resources Objects | - | --------- ------- | - | -queues -DPRC | - | -buffer pools -DPMCP | - | -Eth MACs/ports -DPIO | - | -network interface -DPNI | - | profiles -DPMAC | - | -queue portals -DPBP | - | -MC portals ... | - | ... | - | | - +--------------------------------------+ - -The MC mediates operations such as create, discover, -connect, configuration, and destroy. Fast-path operations -on data, such as packet transmit/receive, are not mediated by -the MC and are done directly using memory mapped regions in -DPIO objects. - -Overview of DPAA2 Objects -------------------------- -The section provides a brief overview of some key DPAA2 objects. -A simple scenario is described illustrating the objects involved -in creating a network interfaces. - --DPRC (Datapath Resource Container) - - A DPRC is a container object that holds all the other - types of DPAA2 objects. In the example diagram below there - are 8 objects of 5 types (DPMCP, DPIO, DPBP, DPNI, and DPMAC) - in the container. - - +---------------------------------------------------------+ - | DPRC | - | | - | +-------+ +-------+ +-------+ +-------+ +-------+ | - | | DPMCP | | DPIO | | DPBP | | DPNI | | DPMAC | | - | +-------+ +-------+ +-------+ +---+---+ +---+---+ | - | | DPMCP | | DPIO | | - | +-------+ +-------+ | - | | DPMCP | | - | +-------+ | - | | - +---------------------------------------------------------+ - - From the point of view of an OS, a DPRC behaves similar to a plug and - play bus, like PCI. DPRC commands can be used to enumerate the contents - of the DPRC, discover the hardware objects present (including mappable - regions and interrupts). - - DPRC.1 (bus) - | - +--+--------+-------+-------+-------+ - | | | | | - DPMCP.1 DPIO.1 DPBP.1 DPNI.1 DPMAC.1 - DPMCP.2 DPIO.2 - DPMCP.3 - - Hardware objects can be created and destroyed dynamically, providing - the ability to hot plug/unplug objects in and out of the DPRC. - - A DPRC has a mappable MMIO region (an MC portal) that can be used - to send MC commands. It has an interrupt for status events (like - hotplug). - - All objects in a container share the same hardware "isolation context". - This means that with respect to an IOMMU the isolation granularity - is at the DPRC (container) level, not at the individual object - level. - - DPRCs can be defined statically and populated with objects - via a config file passed to the MC when firmware starts - it. - --DPAA2 Objects for an Ethernet Network Interface - - A typical Ethernet NIC is monolithic-- the NIC device contains TX/RX - queuing mechanisms, configuration mechanisms, buffer management, - physical ports, and interrupts. DPAA2 uses a more granular approach - utilizing multiple hardware objects. Each object provides specialized - functions. Groups of these objects are used by software to provide - Ethernet network interface functionality. This approach provides - efficient use of finite hardware resources, flexibility, and - performance advantages. - - The diagram below shows the objects needed for a simple - network interface configuration on a system with 2 CPUs. - - +---+---+ +---+---+ - CPU0 CPU1 - +---+---+ +---+---+ - | | - +---+---+ +---+---+ - DPIO DPIO - +---+---+ +---+---+ - \ / - \ / - \ / - +---+---+ - DPNI --- DPBP,DPMCP - +---+---+ - | - | - +---+---+ - DPMAC - +---+---+ - | - port/PHY - - Below the objects are described. For each object a brief description - is provided along with a summary of the kinds of operations the object - supports and a summary of key resources of the object (MMIO regions - and IRQs). - - -DPMAC (Datapath Ethernet MAC): represents an Ethernet MAC, a - hardware device that connects to an Ethernet PHY and allows - physical transmission and reception of Ethernet frames. - -MMIO regions: none - -IRQs: DPNI link change - -commands: set link up/down, link config, get stats, - IRQ config, enable, reset - - -DPNI (Datapath Network Interface): contains TX/RX queues, - network interface configuration, and RX buffer pool configuration - mechanisms. The TX/RX queues are in memory and are identified by - queue number. - -MMIO regions: none - -IRQs: link state - -commands: port config, offload config, queue config, - parse/classify config, IRQ config, enable, reset - - -DPIO (Datapath I/O): provides interfaces to enqueue and dequeue - packets and do hardware buffer pool management operations. The DPAA2 - architecture separates the mechanism to access queues (the DPIO object) - from the queues themselves. The DPIO provides an MMIO interface to - enqueue/dequeue packets. To enqueue something a descriptor is written - to the DPIO MMIO region, which includes the target queue number. - There will typically be one DPIO assigned to each CPU. This allows all - CPUs to simultaneously perform enqueue/dequeued operations. DPIOs are - expected to be shared by different DPAA2 drivers. - -MMIO regions: queue operations, buffer management - -IRQs: data availability, congestion notification, buffer - pool depletion - -commands: IRQ config, enable, reset - - -DPBP (Datapath Buffer Pool): represents a hardware buffer - pool. - -MMIO regions: none - -IRQs: none - -commands: enable, reset - - -DPMCP (Datapath MC Portal): provides an MC command portal. - Used by drivers to send commands to the MC to manage - objects. - -MMIO regions: MC command portal - -IRQs: command completion - -commands: IRQ config, enable, reset - - Object Connections - ------------------ - Some objects have explicit relationships that must - be configured: - - -DPNI <--> DPMAC - -DPNI <--> DPNI - -DPNI <--> L2-switch-port - A DPNI must be connected to something such as a DPMAC, - another DPNI, or L2 switch port. The DPNI connection - is made via a DPRC command. - - +-------+ +-------+ - | DPNI | | DPMAC | - +---+---+ +---+---+ - | | - +==========+ - - -DPNI <--> DPBP - A network interface requires a 'buffer pool' (DPBP - object) which provides a list of pointers to memory - where received Ethernet data is to be copied. The - Ethernet driver configures the DPBPs associated with - the network interface. - - Interrupts - ---------- - All interrupts generated by DPAA2 objects are message - interrupts. At the hardware level message interrupts - generated by devices will normally have 3 components-- - 1) a non-spoofable 'device-id' expressed on the hardware - bus, 2) an address, 3) a data value. - - In the case of DPAA2 devices/objects, all objects in the - same container/DPRC share the same 'device-id'. - For ARM-based SoC this is the same as the stream ID. - - -DPAA2 Linux Driver Overview ---------------------------- - -This section provides an overview of the Linux kernel drivers for -DPAA2-- 1) the bus driver and associated "DPAA2 infrastructure" -drivers and 2) functional object drivers (such as Ethernet). - -As described previously, a DPRC is a container that holds the other -types of DPAA2 objects. It is functionally similar to a plug-and-play -bus controller. - -Each object in the DPRC is a Linux "device" and is bound to a driver. -The diagram below shows the Linux drivers involved in a networking -scenario and the objects bound to each driver. A brief description -of each driver follows. - - +------------+ - | OS Network | - | Stack | - +------------+ +------------+ - | Allocator |. . . . . . . | Ethernet | - |(DPMCP,DPBP)| | (DPNI) | - +-.----------+ +---+---+----+ - . . ^ | - . . <data avail, | |<enqueue, - . . tx confirm> | | dequeue> - +-------------+ . | | - | DPRC driver | . +---+---V----+ +---------+ - | (DPRC) | . . . . . .| DPIO driver| | MAC | - +----------+--+ | (DPIO) | | (DPMAC) | - | +------+-----+ +-----+---+ - |<dev add/remove> | | - | | | - +----+--------------+ | +--+---+ - | MC-bus driver | | | PHY | - | | | |driver| - | /soc/fsl-mc | | +--+---+ - +-------------------+ | | - | | - ================================ HARDWARE =========|=================|====== - DPIO | - | | - DPNI---DPBP | - | | - DPMAC | - | | - PHY ---------------+ - ===================================================|======================== - -A brief description of each driver is provided below. - - MC-bus driver - ------------- - The MC-bus driver is a platform driver and is probed from a - node in the device tree (compatible "fsl,qoriq-mc") passed in by boot - firmware. It is responsible for bootstrapping the DPAA2 kernel - infrastructure. - Key functions include: - -registering a new bus type named "fsl-mc" with the kernel, - and implementing bus call-backs (e.g. match/uevent/dev_groups) - -implementing APIs for DPAA2 driver registration and for device - add/remove - -creates an MSI IRQ domain - -doing a 'device add' to expose the 'root' DPRC, in turn triggering - a bind of the root DPRC to the DPRC driver - The binding for the MC-bus device-tree node can be consulted here: - Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt - - DPRC driver - ----------- - The DPRC driver is bound to DPRC objects and does runtime management - of a bus instance. It performs the initial bus scan of the DPRC - and handles interrupts for container events such as hot plug by - re-scanning the DPRC. - - Allocator - ---------- - Certain objects such as DPMCP and DPBP are generic and fungible, - and are intended to be used by other drivers. For example, - the DPAA2 Ethernet driver needs: - -DPMCPs to send MC commands, to configure network interfaces - -DPBPs for network buffer pools - - The allocator driver registers for these allocatable object types - and those objects are bound to the allocator when the bus is probed. - The allocator maintains a pool of objects that are available for - allocation by other DPAA2 drivers. - - DPIO driver - ----------- - The DPIO driver is bound to DPIO objects and provides services that allow - other drivers such as the Ethernet driver to enqueue and dequeue data for - their respective objects. - Key services include: - -data availability notifications - -hardware queuing operations (enqueue and dequeue of data) - -hardware buffer pool management - - To transmit a packet the Ethernet driver puts data on a queue and - invokes a DPIO API. For receive, the Ethernet driver registers - a data availability notification callback. To dequeue a packet - a DPIO API is used. - - There is typically one DPIO object per physical CPU for optimum - performance, allowing different CPUs to simultaneously enqueue - and dequeue data. - - The DPIO driver operates on behalf of all DPAA2 drivers - active in the kernel-- Ethernet, crypto, compression, - etc. - - Ethernet - -------- - The Ethernet driver is bound to a DPNI and implements the kernel - interfaces needed to connect the DPAA2 network interface to - the network stack. - - Each DPNI corresponds to a Linux network interface. - - MAC driver - ---------- - An Ethernet PHY is an off-chip, board specific component and is managed - by the appropriate PHY driver via an mdio bus. The MAC driver - plays a role of being a proxy between the PHY driver and the - MC. It does this proxy via the MC commands to a DPMAC object. - If the PHY driver signals a link change, the MAC driver notifies - the MC via a DPMAC command. If a network interface is brought - up or down, the MC notifies the DPMAC driver via an interrupt and - the driver can take appropriate action. diff --git a/drivers/staging/fsl-mc/bus/Kconfig b/drivers/staging/fsl-mc/bus/Kconfig index 504c987447f2..1f9100049176 100644 --- a/drivers/staging/fsl-mc/bus/Kconfig +++ b/drivers/staging/fsl-mc/bus/Kconfig @@ -1,10 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 # # DPAA2 fsl-mc bus # # Copyright (C) 2014-2016 Freescale Semiconductor, Inc. # -# This file is released under the GPLv2 -# config FSL_MC_BUS bool "QorIQ DPAA2 fsl-mc bus driver" diff --git a/drivers/staging/fsl-mc/bus/Makefile b/drivers/staging/fsl-mc/bus/Makefile index 6df407edfade..29059db95ecc 100644 --- a/drivers/staging/fsl-mc/bus/Makefile +++ b/drivers/staging/fsl-mc/bus/Makefile @@ -1,10 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0 # # Freescale Management Complex (MC) bus drivers # # Copyright (C) 2014 Freescale Semiconductor, Inc. # -# This file is released under the GPLv2 -# obj-$(CONFIG_FSL_MC_BUS) += mc-bus-driver.o mc-bus-driver-objs := fsl-mc-bus.o \ diff --git a/drivers/staging/fsl-mc/bus/dpbp-cmd.h b/drivers/staging/fsl-mc/bus/dpbp-cmd.h index 5904836fd741..0b7f5c041f19 100644 --- a/drivers/staging/fsl-mc/bus/dpbp-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpbp-cmd.h @@ -1,33 +1,7 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _FSL_DPBP_CMD_H #define _FSL_DPBP_CMD_H diff --git a/drivers/staging/fsl-mc/bus/dpbp.c b/drivers/staging/fsl-mc/bus/dpbp.c index 363730a80cbb..a4df84668d5b 100644 --- a/drivers/staging/fsl-mc/bus/dpbp.c +++ b/drivers/staging/fsl-mc/bus/dpbp.c @@ -1,33 +1,7 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/kernel.h> #include "../include/mc.h" @@ -77,7 +51,7 @@ int dpbp_open(struct fsl_mc_io *mc_io, return err; } -EXPORT_SYMBOL(dpbp_open); +EXPORT_SYMBOL_GPL(dpbp_open); /** * dpbp_close() - Close the control session of the object @@ -103,7 +77,7 @@ int dpbp_close(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpbp_close); +EXPORT_SYMBOL_GPL(dpbp_close); /** * dpbp_enable() - Enable the DPBP. @@ -126,7 +100,7 @@ int dpbp_enable(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpbp_enable); +EXPORT_SYMBOL_GPL(dpbp_enable); /** * dpbp_disable() - Disable the DPBP. @@ -149,7 +123,7 @@ int dpbp_disable(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpbp_disable); +EXPORT_SYMBOL_GPL(dpbp_disable); /** * dpbp_is_enabled() - Check if the DPBP is enabled. @@ -183,7 +157,7 @@ int dpbp_is_enabled(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dpbp_is_enabled); +EXPORT_SYMBOL_GPL(dpbp_is_enabled); /** * dpbp_reset() - Reset the DPBP, returns the object to initial state. @@ -206,7 +180,7 @@ int dpbp_reset(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpbp_reset); +EXPORT_SYMBOL_GPL(dpbp_reset); /** * dpbp_get_attributes - Retrieve DPBP attributes. @@ -243,7 +217,7 @@ int dpbp_get_attributes(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dpbp_get_attributes); +EXPORT_SYMBOL_GPL(dpbp_get_attributes); /** * dpbp_get_api_version - Get Data Path Buffer Pool API version @@ -276,4 +250,4 @@ int dpbp_get_api_version(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dpbp_get_api_version); +EXPORT_SYMBOL_GPL(dpbp_get_api_version); diff --git a/drivers/staging/fsl-mc/bus/dpcon-cmd.h b/drivers/staging/fsl-mc/bus/dpcon-cmd.h index 2bb66988ecf6..27fa09877970 100644 --- a/drivers/staging/fsl-mc/bus/dpcon-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpcon-cmd.h @@ -1,33 +1,7 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _FSL_DPCON_CMD_H #define _FSL_DPCON_CMD_H @@ -45,13 +19,11 @@ /* Command IDs */ #define DPCON_CMDID_CLOSE DPCON_CMD(0x800) #define DPCON_CMDID_OPEN DPCON_CMD(0x808) -#define DPCON_CMDID_GET_API_VERSION DPCON_CMD(0xa08) #define DPCON_CMDID_ENABLE DPCON_CMD(0x002) #define DPCON_CMDID_DISABLE DPCON_CMD(0x003) #define DPCON_CMDID_GET_ATTR DPCON_CMD(0x004) #define DPCON_CMDID_RESET DPCON_CMD(0x005) -#define DPCON_CMDID_IS_ENABLED DPCON_CMD(0x006) #define DPCON_CMDID_SET_NOTIFICATION DPCON_CMD(0x100) @@ -61,10 +33,6 @@ struct dpcon_cmd_open { #define DPCON_ENABLE 1 -struct dpcon_rsp_is_enabled { - u8 enabled; -}; - struct dpcon_rsp_get_attr { /* response word 0 */ __le32 id; diff --git a/drivers/staging/fsl-mc/bus/dpcon.c b/drivers/staging/fsl-mc/bus/dpcon.c index ca1da85c6dda..8f84d7b5465c 100644 --- a/drivers/staging/fsl-mc/bus/dpcon.c +++ b/drivers/staging/fsl-mc/bus/dpcon.c @@ -1,33 +1,7 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/kernel.h> #include "../include/mc.h" @@ -78,7 +52,7 @@ int dpcon_open(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dpcon_open); +EXPORT_SYMBOL_GPL(dpcon_open); /** * dpcon_close() - Close the control session of the object @@ -105,7 +79,7 @@ int dpcon_close(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpcon_close); +EXPORT_SYMBOL_GPL(dpcon_close); /** * dpcon_enable() - Enable the DPCON @@ -129,7 +103,7 @@ int dpcon_enable(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpcon_enable); +EXPORT_SYMBOL_GPL(dpcon_enable); /** * dpcon_disable() - Disable the DPCON @@ -153,43 +127,7 @@ int dpcon_disable(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpcon_disable); - -/** - * dpcon_is_enabled() - Check if the DPCON is enabled. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPCON object - * @en: Returns '1' if object is enabled; '0' otherwise - * - * Return: '0' on Success; Error code otherwise. - */ -int dpcon_is_enabled(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *en) -{ - struct mc_command cmd = { 0 }; - struct dpcon_rsp_is_enabled *dpcon_rsp; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPCON_CMDID_IS_ENABLED, - cmd_flags, - token); - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - dpcon_rsp = (struct dpcon_rsp_is_enabled *)cmd.params; - *en = dpcon_rsp->enabled & DPCON_ENABLE; - - return 0; -} -EXPORT_SYMBOL(dpcon_is_enabled); +EXPORT_SYMBOL_GPL(dpcon_disable); /** * dpcon_reset() - Reset the DPCON, returns the object to initial state. @@ -212,7 +150,7 @@ int dpcon_reset(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpcon_reset); +EXPORT_SYMBOL_GPL(dpcon_reset); /** * dpcon_get_attributes() - Retrieve DPCON attributes. @@ -250,7 +188,7 @@ int dpcon_get_attributes(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dpcon_get_attributes); +EXPORT_SYMBOL_GPL(dpcon_get_attributes); /** * dpcon_set_notification() - Set DPCON notification destination @@ -281,37 +219,4 @@ int dpcon_set_notification(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dpcon_set_notification); - -/** - * dpcon_get_api_version - Get Data Path Concentrator API version - * @mc_io: Pointer to MC portal's DPCON object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @major_ver: Major version of DPCON API - * @minor_ver: Minor version of DPCON API - * - * Return: '0' on Success; Error code otherwise - */ -int dpcon_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver) -{ - struct mc_command cmd = { 0 }; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPCON_CMDID_GET_API_VERSION, - cmd_flags, 0); - - /* send command to mc */ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - mc_cmd_read_api_version(&cmd, major_ver, minor_ver); - - return 0; -} -EXPORT_SYMBOL(dpcon_get_api_version); +EXPORT_SYMBOL_GPL(dpcon_set_notification); diff --git a/drivers/staging/fsl-mc/bus/dpio/Makefile b/drivers/staging/fsl-mc/bus/dpio/Makefile index 837d3303e11d..53ba84d7b884 100644 --- a/drivers/staging/fsl-mc/bus/dpio/Makefile +++ b/drivers/staging/fsl-mc/bus/dpio/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # QorIQ DPAA2 DPIO driver # diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio-cmd.h b/drivers/staging/fsl-mc/bus/dpio/dpio-cmd.h index b2dc6e766f09..ab8f82ee7ee5 100644 --- a/drivers/staging/fsl-mc/bus/dpio/dpio-cmd.h +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-cmd.h @@ -1,34 +1,8 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2013-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _FSL_DPIO_CMD_H #define _FSL_DPIO_CMD_H diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio-driver.c b/drivers/staging/fsl-mc/bus/dpio/dpio-driver.c index e36da20a2796..b8479ef64c71 100644 --- a/drivers/staging/fsl-mc/bus/dpio/dpio-driver.c +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-driver.c @@ -1,33 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright NXP 2016 * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <linux/types.h> diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c index a609ec82daf3..d3c8462d43e8 100644 --- a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c +++ b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c @@ -1,33 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <linux/types.h> #include "../../include/mc.h" @@ -43,7 +18,6 @@ #include "qbman-portal.h" struct dpaa2_io { - atomic_t refs; struct dpaa2_io_desc dpio_desc; struct qbman_swp_desc swp_desc; struct qbman_swp *swp; @@ -105,6 +79,23 @@ static inline struct dpaa2_io *service_select(struct dpaa2_io *d) } /** + * dpaa2_io_service_select() - return a dpaa2_io service affined to this cpu + * @cpu: the cpu id + * + * Return the affine dpaa2_io service, or NULL if there is no service affined + * to the specified cpu. If DPAA2_IO_ANY_CPU is used, return the next available + * service. + */ +struct dpaa2_io *dpaa2_io_service_select(int cpu) +{ + if (cpu == DPAA2_IO_ANY_CPU) + return service_select(NULL); + + return service_select_by_cpu(NULL, cpu); +} +EXPORT_SYMBOL_GPL(dpaa2_io_service_select); + +/** * dpaa2_io_create() - create a dpaa2_io object. * @desc: the dpaa2_io descriptor * @@ -126,7 +117,6 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc) return NULL; } - atomic_set(&obj->refs, 1); obj->dpio_desc = *desc; obj->swp_desc.cena_bar = obj->dpio_desc.regs_cena; obj->swp_desc.cinh_bar = obj->dpio_desc.regs_cinh; @@ -158,7 +148,6 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc) return obj; } -EXPORT_SYMBOL(dpaa2_io_create); /** * dpaa2_io_down() - release the dpaa2_io object. @@ -171,11 +160,8 @@ EXPORT_SYMBOL(dpaa2_io_create); */ void dpaa2_io_down(struct dpaa2_io *d) { - if (!atomic_dec_and_test(&d->refs)) - return; kfree(d); } -EXPORT_SYMBOL(dpaa2_io_down); #define DPAA_POLL_MAX 32 @@ -222,7 +208,6 @@ done: qbman_swp_interrupt_set_inhibit(swp, 0); return IRQ_HANDLED; } -EXPORT_SYMBOL(dpaa2_io_irq); /** * dpaa2_io_service_register() - Prepare for servicing of FQDAN or CDAN @@ -265,7 +250,7 @@ int dpaa2_io_service_register(struct dpaa2_io *d, ctx->qman64); return 0; } -EXPORT_SYMBOL(dpaa2_io_service_register); +EXPORT_SYMBOL_GPL(dpaa2_io_service_register); /** * dpaa2_io_service_deregister - The opposite of 'register'. @@ -288,7 +273,7 @@ void dpaa2_io_service_deregister(struct dpaa2_io *service, list_del(&ctx->node); spin_unlock_irqrestore(&d->lock_notifications, irqflags); } -EXPORT_SYMBOL(dpaa2_io_service_deregister); +EXPORT_SYMBOL_GPL(dpaa2_io_service_deregister); /** * dpaa2_io_service_rearm() - Rearm the notification for the given DPIO service. @@ -322,38 +307,7 @@ int dpaa2_io_service_rearm(struct dpaa2_io *d, return err; } -EXPORT_SYMBOL(dpaa2_io_service_rearm); - -/** - * dpaa2_io_service_pull_fq() - pull dequeue functions from a fq. - * @d: the given DPIO service. - * @fqid: the given frame queue id. - * @s: the dpaa2_io_store object for the result. - * - * Return 0 for success, or error code for failure. - */ -int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid, - struct dpaa2_io_store *s) -{ - struct qbman_pull_desc pd; - int err; - - qbman_pull_desc_clear(&pd); - qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1); - qbman_pull_desc_set_numframes(&pd, (u8)s->max); - qbman_pull_desc_set_fq(&pd, fqid); - - d = service_select(d); - if (!d) - return -ENODEV; - s->swp = d->swp; - err = qbman_swp_pull(d->swp, &pd); - if (err) - s->swp = NULL; - - return err; -} -EXPORT_SYMBOL(dpaa2_io_service_pull_fq); +EXPORT_SYMBOL_GPL(dpaa2_io_service_rearm); /** * dpaa2_io_service_pull_channel() - pull dequeue functions from a channel. @@ -385,34 +339,7 @@ int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid, return err; } -EXPORT_SYMBOL(dpaa2_io_service_pull_channel); - -/** - * dpaa2_io_service_enqueue_fq() - Enqueue a frame to a frame queue. - * @d: the given DPIO service. - * @fqid: the given frame queue id. - * @fd: the frame descriptor which is enqueued. - * - * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready, - * or -ENODEV if there is no dpio service. - */ -int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, - u32 fqid, - const struct dpaa2_fd *fd) -{ - struct qbman_eq_desc ed; - - d = service_select(d); - if (!d) - return -ENODEV; - - qbman_eq_desc_clear(&ed); - qbman_eq_desc_set_no_orp(&ed, 0); - qbman_eq_desc_set_fq(&ed, fqid); - - return qbman_swp_enqueue(d->swp, &ed, fd); -} -EXPORT_SYMBOL(dpaa2_io_service_enqueue_fq); +EXPORT_SYMBOL_GPL(dpaa2_io_service_pull_channel); /** * dpaa2_io_service_enqueue_qd() - Enqueue a frame to a QD. @@ -441,7 +368,7 @@ int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, return qbman_swp_enqueue(d->swp, &ed, fd); } -EXPORT_SYMBOL(dpaa2_io_service_enqueue_qd); +EXPORT_SYMBOL_GPL(dpaa2_io_service_enqueue_qd); /** * dpaa2_io_service_release() - Release buffers to a buffer pool. @@ -468,7 +395,7 @@ int dpaa2_io_service_release(struct dpaa2_io *d, return qbman_swp_release(d->swp, &rd, buffers, num_buffers); } -EXPORT_SYMBOL(dpaa2_io_service_release); +EXPORT_SYMBOL_GPL(dpaa2_io_service_release); /** * dpaa2_io_service_acquire() - Acquire buffers from a buffer pool. @@ -499,7 +426,7 @@ int dpaa2_io_service_acquire(struct dpaa2_io *d, return err; } -EXPORT_SYMBOL(dpaa2_io_service_acquire); +EXPORT_SYMBOL_GPL(dpaa2_io_service_acquire); /* * 'Stores' are reusable memory blocks for holding dequeue results, and to @@ -553,7 +480,7 @@ struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames, return ret; } -EXPORT_SYMBOL(dpaa2_io_store_create); +EXPORT_SYMBOL_GPL(dpaa2_io_store_create); /** * dpaa2_io_store_destroy() - Frees the dma memory storage for dequeue @@ -567,7 +494,7 @@ void dpaa2_io_store_destroy(struct dpaa2_io_store *s) kfree(s->alloced_addr); kfree(s); } -EXPORT_SYMBOL(dpaa2_io_store_destroy); +EXPORT_SYMBOL_GPL(dpaa2_io_store_destroy); /** * dpaa2_io_store_next() - Determine when the next dequeue result is available. @@ -615,4 +542,4 @@ struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last) return ret; } -EXPORT_SYMBOL(dpaa2_io_store_next); +EXPORT_SYMBOL_GPL(dpaa2_io_store_next); diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio.c b/drivers/staging/fsl-mc/bus/dpio/dpio.c index 00eb22186f42..20cdeae54a74 100644 --- a/drivers/staging/fsl-mc/bus/dpio/dpio.c +++ b/drivers/staging/fsl-mc/bus/dpio/dpio.c @@ -1,34 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2013-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/kernel.h> #include "../../include/mc.h" diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio.h b/drivers/staging/fsl-mc/bus/dpio/dpio.h index ced1103d157c..49194c8e45f1 100644 --- a/drivers/staging/fsl-mc/bus/dpio/dpio.h +++ b/drivers/staging/fsl-mc/bus/dpio/dpio.h @@ -1,34 +1,8 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2013-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_DPIO_H #define __FSL_DPIO_H diff --git a/drivers/staging/fsl-mc/bus/dpio/qbman-portal.c b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.c index 163bdac6b051..376e9ed0297a 100644 --- a/drivers/staging/fsl-mc/bus/dpio/qbman-portal.c +++ b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.c @@ -1,33 +1,8 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include <asm/cacheflush.h> diff --git a/drivers/staging/fsl-mc/bus/dpio/qbman-portal.h b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.h index 842855971f34..fb8b9d35a3eb 100644 --- a/drivers/staging/fsl-mc/bus/dpio/qbman-portal.h +++ b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.h @@ -1,33 +1,8 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_QBMAN_PORTAL_H #define __FSL_QBMAN_PORTAL_H diff --git a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h deleted file mode 100644 index 861b2a708af8..000000000000 --- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h +++ /dev/null @@ -1,56 +0,0 @@ -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef _FSL_DPMCP_CMD_H -#define _FSL_DPMCP_CMD_H - -/* Minimal supported DPMCP Version */ -#define DPMCP_MIN_VER_MAJOR 3 -#define DPMCP_MIN_VER_MINOR 0 - -/* Command versioning */ -#define DPMCP_CMD_BASE_VERSION 1 -#define DPMCP_CMD_ID_OFFSET 4 - -#define DPMCP_CMD(id) (((id) << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION) - -/* Command IDs */ -#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800) -#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b) -#define DPMCP_CMDID_GET_API_VERSION DPMCP_CMD(0xa0b) - -#define DPMCP_CMDID_RESET DPMCP_CMD(0x005) - -struct dpmcp_cmd_open { - __le32 dpmcp_id; -}; - -#endif /* _FSL_DPMCP_CMD_H */ diff --git a/drivers/staging/fsl-mc/bus/dpmcp.c b/drivers/staging/fsl-mc/bus/dpmcp.c index eea42f61af86..be07c77520af 100644 --- a/drivers/staging/fsl-mc/bus/dpmcp.c +++ b/drivers/staging/fsl-mc/bus/dpmcp.c @@ -1,39 +1,12 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/kernel.h> #include "../include/mc.h" -#include "dpmcp.h" -#include "dpmcp-cmd.h" +#include "fsl-mc-private.h" /** * dpmcp_open() - Open a control session for the specified object. @@ -124,35 +97,3 @@ int dpmcp_reset(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } - -/** - * dpmcp_get_api_version - Get Data Path Management Command Portal API version - * @mc_io: Pointer to Mc portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @major_ver: Major version of Data Path Management Command Portal API - * @minor_ver: Minor version of Data Path Management Command Portal API - * - * Return: '0' on Success; Error code otherwise. - */ -int dpmcp_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver) -{ - struct mc_command cmd = { 0 }; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_API_VERSION, - cmd_flags, 0); - - /* send command to mc */ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - mc_cmd_read_api_version(&cmd, major_ver, minor_ver); - - return 0; -} diff --git a/drivers/staging/fsl-mc/bus/dpmcp.h b/drivers/staging/fsl-mc/bus/dpmcp.h deleted file mode 100644 index f616031e3e59..000000000000 --- a/drivers/staging/fsl-mc/bus/dpmcp.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef __FSL_DPMCP_H -#define __FSL_DPMCP_H - -/* - * Data Path Management Command Portal API - * Contains initialization APIs and runtime control APIs for DPMCP - */ - -struct fsl_mc_io; - -int dpmcp_open(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int dpmcp_id, - u16 *token); - -int dpmcp_close(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token); - -int dpmcp_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver); - -int dpmcp_reset(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token); - -#endif /* __FSL_DPMCP_H */ diff --git a/drivers/staging/fsl-mc/bus/dpmng-cmd.h b/drivers/staging/fsl-mc/bus/dpmng-cmd.h deleted file mode 100644 index d1f04ac18b78..000000000000 --- a/drivers/staging/fsl-mc/bus/dpmng-cmd.h +++ /dev/null @@ -1,58 +0,0 @@ -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * dpmng-cmd.h - * - * defines portal commands - * - */ - -#ifndef __FSL_DPMNG_CMD_H -#define __FSL_DPMNG_CMD_H - -/* Command versioning */ -#define DPMNG_CMD_BASE_VERSION 1 -#define DPMNG_CMD_ID_OFFSET 4 - -#define DPMNG_CMD(id) (((id) << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION) - -/* Command IDs */ -#define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831) - -struct dpmng_rsp_get_version { - __le32 revision; - __le32 version_major; - __le32 version_minor; -}; - -#endif /* __FSL_DPMNG_CMD_H */ diff --git a/drivers/staging/fsl-mc/bus/dprc-cmd.h b/drivers/staging/fsl-mc/bus/dprc-cmd.h deleted file mode 100644 index d9b2dcde468e..000000000000 --- a/drivers/staging/fsl-mc/bus/dprc-cmd.h +++ /dev/null @@ -1,451 +0,0 @@ -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * dprc-cmd.h - * - * defines dprc portal commands - * - */ - -#ifndef _FSL_DPRC_CMD_H -#define _FSL_DPRC_CMD_H - -/* Minimal supported DPRC Version */ -#define DPRC_MIN_VER_MAJOR 6 -#define DPRC_MIN_VER_MINOR 0 - -/* Command versioning */ -#define DPRC_CMD_BASE_VERSION 1 -#define DPRC_CMD_ID_OFFSET 4 - -#define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION) - -/* Command IDs */ -#define DPRC_CMDID_CLOSE DPRC_CMD(0x800) -#define DPRC_CMDID_OPEN DPRC_CMD(0x805) -#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05) - -#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004) - -#define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010) -#define DPRC_CMDID_GET_IRQ DPRC_CMD(0x011) -#define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012) -#define DPRC_CMDID_GET_IRQ_ENABLE DPRC_CMD(0x013) -#define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014) -#define DPRC_CMDID_GET_IRQ_MASK DPRC_CMD(0x015) -#define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016) -#define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017) - -#define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830) -#define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159) -#define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A) -#define DPRC_CMDID_GET_RES_COUNT DPRC_CMD(0x15B) -#define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E) -#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F) -#define DPRC_CMDID_GET_OBJ_IRQ DPRC_CMD(0x160) - -struct dprc_cmd_open { - __le32 container_id; -}; - -struct dprc_cmd_create_container { - /* cmd word 0 */ - __le32 options; - __le16 icid; - __le16 pad0; - /* cmd word 1 */ - __le32 pad1; - __le32 portal_id; - /* cmd words 2-3 */ - u8 label[16]; -}; - -struct dprc_rsp_create_container { - /* response word 0 */ - __le64 pad0; - /* response word 1 */ - __le32 child_container_id; - __le32 pad1; - /* response word 2 */ - __le64 child_portal_addr; -}; - -struct dprc_cmd_destroy_container { - __le32 child_container_id; -}; - -struct dprc_cmd_reset_container { - __le32 child_container_id; -}; - -struct dprc_cmd_set_irq { - /* cmd word 0 */ - __le32 irq_val; - u8 irq_index; - u8 pad[3]; - /* cmd word 1 */ - __le64 irq_addr; - /* cmd word 2 */ - __le32 irq_num; -}; - -struct dprc_cmd_get_irq { - __le32 pad; - u8 irq_index; -}; - -struct dprc_rsp_get_irq { - /* response word 0 */ - __le32 irq_val; - __le32 pad; - /* response word 1 */ - __le64 irq_addr; - /* response word 2 */ - __le32 irq_num; - __le32 type; -}; - -#define DPRC_ENABLE 0x1 - -struct dprc_cmd_set_irq_enable { - u8 enable; - u8 pad[3]; - u8 irq_index; -}; - -struct dprc_cmd_get_irq_enable { - __le32 pad; - u8 irq_index; -}; - -struct dprc_rsp_get_irq_enable { - u8 enabled; -}; - -struct dprc_cmd_set_irq_mask { - __le32 mask; - u8 irq_index; -}; - -struct dprc_cmd_get_irq_mask { - __le32 pad; - u8 irq_index; -}; - -struct dprc_rsp_get_irq_mask { - __le32 mask; -}; - -struct dprc_cmd_get_irq_status { - __le32 status; - u8 irq_index; -}; - -struct dprc_rsp_get_irq_status { - __le32 status; -}; - -struct dprc_cmd_clear_irq_status { - __le32 status; - u8 irq_index; -}; - -struct dprc_rsp_get_attributes { - /* response word 0 */ - __le32 container_id; - __le16 icid; - __le16 pad; - /* response word 1 */ - __le32 options; - __le32 portal_id; -}; - -struct dprc_cmd_set_res_quota { - /* cmd word 0 */ - __le32 child_container_id; - __le16 quota; - __le16 pad; - /* cmd words 1-2 */ - u8 type[16]; -}; - -struct dprc_cmd_get_res_quota { - /* cmd word 0 */ - __le32 child_container_id; - __le32 pad; - /* cmd word 1-2 */ - u8 type[16]; -}; - -struct dprc_rsp_get_res_quota { - __le32 pad; - __le16 quota; -}; - -struct dprc_cmd_assign { - /* cmd word 0 */ - __le32 container_id; - __le32 options; - /* cmd word 1 */ - __le32 num; - __le32 id_base_align; - /* cmd word 2-3 */ - u8 type[16]; -}; - -struct dprc_cmd_unassign { - /* cmd word 0 */ - __le32 child_container_id; - __le32 options; - /* cmd word 1 */ - __le32 num; - __le32 id_base_align; - /* cmd word 2-3 */ - u8 type[16]; -}; - -struct dprc_rsp_get_pool_count { - __le32 pool_count; -}; - -struct dprc_cmd_get_pool { - __le32 pool_index; -}; - -struct dprc_rsp_get_pool { - /* response word 0 */ - __le64 pad; - /* response word 1-2 */ - u8 type[16]; -}; - -struct dprc_rsp_get_obj_count { - __le32 pad; - __le32 obj_count; -}; - -struct dprc_cmd_get_obj { - __le32 obj_index; -}; - -struct dprc_rsp_get_obj { - /* response word 0 */ - __le32 pad0; - __le32 id; - /* response word 1 */ - __le16 vendor; - u8 irq_count; - u8 region_count; - __le32 state; - /* response word 2 */ - __le16 version_major; - __le16 version_minor; - __le16 flags; - __le16 pad1; - /* response word 3-4 */ - u8 type[16]; - /* response word 5-6 */ - u8 label[16]; -}; - -struct dprc_cmd_get_obj_desc { - /* cmd word 0 */ - __le32 obj_id; - __le32 pad; - /* cmd word 1-2 */ - u8 type[16]; -}; - -struct dprc_rsp_get_obj_desc { - /* response word 0 */ - __le32 pad0; - __le32 id; - /* response word 1 */ - __le16 vendor; - u8 irq_count; - u8 region_count; - __le32 state; - /* response word 2 */ - __le16 version_major; - __le16 version_minor; - __le16 flags; - __le16 pad1; - /* response word 3-4 */ - u8 type[16]; - /* response word 5-6 */ - u8 label[16]; -}; - -struct dprc_cmd_get_res_count { - /* cmd word 0 */ - __le64 pad; - /* cmd word 1-2 */ - u8 type[16]; -}; - -struct dprc_rsp_get_res_count { - __le32 res_count; -}; - -struct dprc_cmd_get_res_ids { - /* cmd word 0 */ - u8 pad0[5]; - u8 iter_status; - __le16 pad1; - /* cmd word 1 */ - __le32 base_id; - __le32 last_id; - /* cmd word 2-3 */ - u8 type[16]; -}; - -struct dprc_rsp_get_res_ids { - /* response word 0 */ - u8 pad0[5]; - u8 iter_status; - __le16 pad1; - /* response word 1 */ - __le32 base_id; - __le32 last_id; -}; - -struct dprc_cmd_get_obj_region { - /* cmd word 0 */ - __le32 obj_id; - __le16 pad0; - u8 region_index; - u8 pad1; - /* cmd word 1-2 */ - __le64 pad2[2]; - /* cmd word 3-4 */ - u8 obj_type[16]; -}; - -struct dprc_rsp_get_obj_region { - /* response word 0 */ - __le64 pad; - /* response word 1 */ - __le64 base_addr; - /* response word 2 */ - __le32 size; -}; - -struct dprc_cmd_set_obj_label { - /* cmd word 0 */ - __le32 obj_id; - __le32 pad; - /* cmd word 1-2 */ - u8 label[16]; - /* cmd word 3-4 */ - u8 obj_type[16]; -}; - -struct dprc_cmd_set_obj_irq { - /* cmd word 0 */ - __le32 irq_val; - u8 irq_index; - u8 pad[3]; - /* cmd word 1 */ - __le64 irq_addr; - /* cmd word 2 */ - __le32 irq_num; - __le32 obj_id; - /* cmd word 3-4 */ - u8 obj_type[16]; -}; - -struct dprc_cmd_get_obj_irq { - /* cmd word 0 */ - __le32 obj_id; - u8 irq_index; - u8 pad[3]; - /* cmd word 1-2 */ - u8 obj_type[16]; -}; - -struct dprc_rsp_get_obj_irq { - /* response word 0 */ - __le32 irq_val; - __le32 pad; - /* response word 1 */ - __le64 irq_addr; - /* response word 2 */ - __le32 irq_num; - __le32 type; -}; - -struct dprc_cmd_connect { - /* cmd word 0 */ - __le32 ep1_id; - __le32 ep1_interface_id; - /* cmd word 1 */ - __le32 ep2_id; - __le32 ep2_interface_id; - /* cmd word 2-3 */ - u8 ep1_type[16]; - /* cmd word 4 */ - __le32 max_rate; - __le32 committed_rate; - /* cmd word 5-6 */ - u8 ep2_type[16]; -}; - -struct dprc_cmd_disconnect { - /* cmd word 0 */ - __le32 id; - __le32 interface_id; - /* cmd word 1-2 */ - u8 type[16]; -}; - -struct dprc_cmd_get_connection { - /* cmd word 0 */ - __le32 ep1_id; - __le32 ep1_interface_id; - /* cmd word 1-2 */ - u8 ep1_type[16]; -}; - -struct dprc_rsp_get_connection { - /* response word 0-2 */ - __le64 pad[3]; - /* response word 3 */ - __le32 ep2_id; - __le32 ep2_interface_id; - /* response word 4-5 */ - u8 ep2_type[16]; - /* response word 6 */ - __le32 state; -}; - -#endif /* _FSL_DPRC_CMD_H */ diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 06df528f4cfc..b09075731e62 100644 --- a/drivers/staging/fsl-mc/bus/dprc-driver.c +++ b/drivers/staging/fsl-mc/bus/dprc-driver.c @@ -1,12 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Freescale data path resource container (DPRC) driver * * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera <German.Rivera@freescale.com> * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/module.h> @@ -15,7 +13,6 @@ #include <linux/msi.h> #include "../include/mc.h" -#include "dprc-cmd.h" #include "fsl-mc-private.h" #define FSL_MC_DPRC_DRIVER_NAME "fsl_mc_dprc" @@ -39,8 +36,6 @@ static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data) struct fsl_mc_child_objs *objs; struct fsl_mc_device *mc_dev; - WARN_ON(!dev); - WARN_ON(!data); mc_dev = to_fsl_mc_device(dev); objs = data; @@ -60,8 +55,6 @@ static int __fsl_mc_device_remove_if_not_in_mc(struct device *dev, void *data) static int __fsl_mc_device_remove(struct device *dev, void *data) { - WARN_ON(!dev); - WARN_ON(data); fsl_mc_device_remove(to_fsl_mc_device(dev)); return 0; } @@ -206,7 +199,8 @@ static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev, * dprc_scan_objects - Discover objects in a DPRC * * @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object - * @total_irq_count: total number of IRQs needed by objects in the DPRC. + * @total_irq_count: If argument is provided the function populates the + * total number of IRQs created by objects in the DPRC. * * Detects objects added and removed from a DPRC and synchronizes the * state of the Linux bus driver, MC by adding and removing @@ -228,6 +222,7 @@ static int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, int error; unsigned int irq_count = mc_bus_dev->obj_desc.irq_count; struct fsl_mc_obj_desc *child_obj_desc_array = NULL; + struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev); error = dprc_get_obj_count(mc_bus_dev->mc_io, 0, @@ -297,7 +292,26 @@ static int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, } } - *total_irq_count = irq_count; + /* + * Allocate IRQ's before binding the scanned devices with their + * respective drivers. + */ + if (dev_get_msi_domain(&mc_bus_dev->dev) && !mc_bus->irq_resources) { + if (irq_count > FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS) { + dev_warn(&mc_bus_dev->dev, + "IRQs needed (%u) exceed IRQs preallocated (%u)\n", + irq_count, FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS); + } + + error = fsl_mc_populate_irq_pool(mc_bus, + FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS); + if (error < 0) + return error; + } + + if (total_irq_count) + *total_irq_count = irq_count; + dprc_remove_devices(mc_bus_dev, child_obj_desc_array, num_child_objects); @@ -322,7 +336,6 @@ static int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev, static int dprc_scan_container(struct fsl_mc_device *mc_bus_dev) { int error; - unsigned int irq_count; struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_bus_dev); fsl_mc_init_all_resource_pools(mc_bus_dev); @@ -331,29 +344,14 @@ static int dprc_scan_container(struct fsl_mc_device *mc_bus_dev) * Discover objects in the DPRC: */ mutex_lock(&mc_bus->scan_mutex); - error = dprc_scan_objects(mc_bus_dev, &irq_count); + error = dprc_scan_objects(mc_bus_dev, NULL); mutex_unlock(&mc_bus->scan_mutex); - if (error < 0) - goto error; - - if (dev_get_msi_domain(&mc_bus_dev->dev) && !mc_bus->irq_resources) { - if (irq_count > FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS) { - dev_warn(&mc_bus_dev->dev, - "IRQs needed (%u) exceed IRQs preallocated (%u)\n", - irq_count, FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS); - } - - error = fsl_mc_populate_irq_pool( - mc_bus, - FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS); - if (error < 0) - goto error; + if (error < 0) { + fsl_mc_cleanup_all_resource_pools(mc_bus_dev); + return error; } return 0; -error: - fsl_mc_cleanup_all_resource_pools(mc_bus_dev); - return error; } /** @@ -386,11 +384,11 @@ static irqreturn_t dprc_irq0_handler_thread(int irq_num, void *arg) dev_dbg(dev, "DPRC IRQ %d triggered on CPU %u\n", irq_num, smp_processor_id()); - if (WARN_ON(!(mc_dev->flags & FSL_MC_IS_DPRC))) + if (!(mc_dev->flags & FSL_MC_IS_DPRC)) return IRQ_HANDLED; mutex_lock(&mc_bus->scan_mutex); - if (WARN_ON(!msi_desc || msi_desc->irq != (u32)irq_num)) + if (!msi_desc || msi_desc->irq != (u32)irq_num) goto out; status = 0; @@ -453,8 +451,6 @@ static int disable_dprc_irq(struct fsl_mc_device *mc_dev) int error; struct fsl_mc_io *mc_io = mc_dev->mc_io; - WARN_ON(mc_dev->obj_desc.irq_count != 1); - /* * Disable generation of interrupt, while we configure it: */ @@ -496,8 +492,6 @@ static int register_dprc_irq_handler(struct fsl_mc_device *mc_dev) int error; struct fsl_mc_device_irq *irq = mc_dev->irqs[0]; - WARN_ON(mc_dev->obj_desc.irq_count != 1); - /* * NOTE: devm_request_threaded_irq() invokes the device-specific * function that programs the MSI physically in the device @@ -601,20 +595,20 @@ static int dprc_probe(struct fsl_mc_device *mc_dev) bool msi_domain_set = false; u16 major_ver, minor_ver; - if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0)) + if (!is_fsl_mc_bus_dprc(mc_dev)) return -EINVAL; - if (WARN_ON(dev_get_msi_domain(&mc_dev->dev))) + if (dev_get_msi_domain(&mc_dev->dev)) return -EINVAL; if (!mc_dev->mc_io) { /* * This is a child DPRC: */ - if (WARN_ON(!dev_is_fsl_mc(parent_dev))) + if (!dev_is_fsl_mc(parent_dev)) return -EINVAL; - if (WARN_ON(mc_dev->obj_desc.region_count == 0)) + if (mc_dev->obj_desc.region_count == 0) return -EINVAL; region_size = resource_size(mc_dev->regions); @@ -642,7 +636,7 @@ static int dprc_probe(struct fsl_mc_device *mc_dev) */ struct irq_domain *mc_msi_domain; - if (WARN_ON(dev_is_fsl_mc(parent_dev))) + if (dev_is_fsl_mc(parent_dev)) return -EINVAL; error = fsl_mc_find_msi_domain(parent_dev, @@ -753,12 +747,12 @@ static int dprc_remove(struct fsl_mc_device *mc_dev) int error; struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev); - if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0)) + if (!is_fsl_mc_bus_dprc(mc_dev)) return -EINVAL; - if (WARN_ON(!mc_dev->mc_io)) + if (!mc_dev->mc_io) return -EINVAL; - if (WARN_ON(!mc_bus->irq_resources)) + if (!mc_bus->irq_resources) return -EINVAL; if (dev_get_msi_domain(&mc_dev->dev)) diff --git a/drivers/staging/fsl-mc/bus/dprc.c b/drivers/staging/fsl-mc/bus/dprc.c index 6f6c65a42166..97f51726fa7e 100644 --- a/drivers/staging/fsl-mc/bus/dprc.c +++ b/drivers/staging/fsl-mc/bus/dprc.c @@ -1,39 +1,11 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/kernel.h> #include "../include/mc.h" -#include "dprc.h" - -#include "dprc-cmd.h" +#include "fsl-mc-private.h" /** * dprc_open() - Open DPRC object for use @@ -71,7 +43,7 @@ int dprc_open(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dprc_open); +EXPORT_SYMBOL_GPL(dprc_open); /** * dprc_close() - Close the control session of the object @@ -97,53 +69,7 @@ int dprc_close(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dprc_close); - -/** - * dprc_get_irq() - Get IRQ information from the DPRC. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @irq_index: The interrupt index to configure - * @type: Interrupt type: 0 represents message interrupt - * type (both irq_addr and irq_val are valid) - * @irq_cfg: IRQ attributes - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dprc_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_irq *cmd_params; - struct dprc_rsp_get_irq *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_get_irq *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_irq *)cmd.params; - irq_cfg->val = le32_to_cpu(rsp_params->irq_val); - irq_cfg->paddr = le64_to_cpu(rsp_params->irq_addr); - irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num); - *type = le32_to_cpu(rsp_params->type); - - return 0; -} +EXPORT_SYMBOL_GPL(dprc_close); /** * dprc_set_irq() - Set IRQ information for the DPRC to trigger an interrupt. @@ -179,45 +105,6 @@ int dprc_set_irq(struct fsl_mc_io *mc_io, } /** - * dprc_get_irq_enable() - Get overall interrupt state. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @irq_index: The interrupt index to configure - * @en: Returned interrupt state - enable = 1, disable = 0 - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_irq_enable *cmd_params; - struct dprc_rsp_get_irq_enable *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_ENABLE, - cmd_flags, token); - cmd_params = (struct dprc_cmd_get_irq_enable *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_irq_enable *)cmd.params; - *en = rsp_params->enabled & DPRC_ENABLE; - - return 0; -} - -/** * dprc_set_irq_enable() - Set overall interrupt state. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -253,48 +140,6 @@ int dprc_set_irq_enable(struct fsl_mc_io *mc_io, } /** - * dprc_get_irq_mask() - Get interrupt mask. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @irq_index: The interrupt index to configure - * @mask: Returned event mask to trigger interrupt - * - * Every interrupt can have up to 32 causes and the interrupt model supports - * masking/unmasking each cause independently - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_irq_mask *cmd_params; - struct dprc_rsp_get_irq_mask *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_IRQ_MASK, - cmd_flags, token); - cmd_params = (struct dprc_cmd_get_irq_mask *)cmd.params; - cmd_params->irq_index = irq_index; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_irq_mask *)cmd.params; - *mask = le32_to_cpu(rsp_params->mask); - - return 0; -} - -/** * dprc_set_irq_mask() - Set interrupt mask. * @mc_io: Pointer to MC portal's I/O object * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' @@ -475,7 +320,7 @@ int dprc_get_obj_count(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dprc_get_obj_count); +EXPORT_SYMBOL_GPL(dprc_get_obj_count); /** * dprc_get_obj() - Get general information on an object @@ -531,7 +376,7 @@ int dprc_get_obj(struct fsl_mc_io *mc_io, obj_desc->label[15] = '\0'; return 0; } -EXPORT_SYMBOL(dprc_get_obj); +EXPORT_SYMBOL_GPL(dprc_get_obj); /** * dprc_set_obj_irq() - Set IRQ information for object to trigger an interrupt. @@ -572,104 +417,7 @@ int dprc_set_obj_irq(struct fsl_mc_io *mc_io, /* send command to mc*/ return mc_send_command(mc_io, &cmd); } -EXPORT_SYMBOL(dprc_set_obj_irq); - -/** - * dprc_get_obj_irq() - Get IRQ information from object. - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @obj_type: Type od the object to get its IRQ - * @obj_id: ID of the object to get its IRQ - * @irq_index: The interrupt index to configure - * @type: Interrupt type: 0 represents message interrupt - * type (both irq_addr and irq_val are valid) - * @irq_cfg: The returned IRQ attributes - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_obj_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 irq_index, - int *type, - struct dprc_irq_cfg *irq_cfg) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_obj_irq *cmd_params; - struct dprc_rsp_get_obj_irq *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_IRQ, - cmd_flags, - token); - cmd_params = (struct dprc_cmd_get_obj_irq *)cmd.params; - cmd_params->obj_id = cpu_to_le32(obj_id); - cmd_params->irq_index = irq_index; - strncpy(cmd_params->obj_type, obj_type, 16); - cmd_params->obj_type[15] = '\0'; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_obj_irq *)cmd.params; - irq_cfg->val = le32_to_cpu(rsp_params->irq_val); - irq_cfg->paddr = le64_to_cpu(rsp_params->irq_addr); - irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num); - *type = le32_to_cpu(rsp_params->type); - - return 0; -} -EXPORT_SYMBOL(dprc_get_obj_irq); - -/** - * dprc_get_res_count() - Obtains the number of free resources that are assigned - * to this container, by pool type - * @mc_io: Pointer to MC portal's I/O object - * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' - * @token: Token of DPRC object - * @type: pool type - * @res_count: Returned number of free resources of the given - * resource type that are assigned to this DPRC - * - * Return: '0' on Success; Error code otherwise. - */ -int dprc_get_res_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *type, - int *res_count) -{ - struct mc_command cmd = { 0 }; - struct dprc_cmd_get_res_count *cmd_params; - struct dprc_rsp_get_res_count *rsp_params; - int err; - - /* prepare command */ - cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_COUNT, - cmd_flags, token); - cmd_params = (struct dprc_cmd_get_res_count *)cmd.params; - strncpy(cmd_params->type, type, 16); - cmd_params->type[15] = '\0'; - - /* send command to mc*/ - err = mc_send_command(mc_io, &cmd); - if (err) - return err; - - /* retrieve response parameters */ - rsp_params = (struct dprc_rsp_get_res_count *)cmd.params; - *res_count = le32_to_cpu(rsp_params->res_count); - - return 0; -} -EXPORT_SYMBOL(dprc_get_res_count); +EXPORT_SYMBOL_GPL(dprc_set_obj_irq); /** * dprc_get_obj_region() - Get region information for a specified object. @@ -717,7 +465,7 @@ int dprc_get_obj_region(struct fsl_mc_io *mc_io, return 0; } -EXPORT_SYMBOL(dprc_get_obj_region); +EXPORT_SYMBOL_GPL(dprc_get_obj_region); /** * dprc_get_api_version - Get Data Path Resource Container API version diff --git a/drivers/staging/fsl-mc/bus/dprc.h b/drivers/staging/fsl-mc/bus/dprc.h deleted file mode 100644 index 21295e4feb04..000000000000 --- a/drivers/staging/fsl-mc/bus/dprc.h +++ /dev/null @@ -1,268 +0,0 @@ -/* - * Copyright 2013-2016 Freescale Semiconductor Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -#ifndef _FSL_DPRC_H -#define _FSL_DPRC_H - -/* - * Data Path Resource Container API - * Contains DPRC API for managing and querying DPAA resources - */ - -struct fsl_mc_io; -struct fsl_mc_obj_desc; - -int dprc_open(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int container_id, - u16 *token); - -int dprc_close(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token); - -/* IRQ */ - -/* IRQ index */ -#define DPRC_IRQ_INDEX 0 - -/* Number of dprc's IRQs */ -#define DPRC_NUM_OF_IRQS 1 - -/* DPRC IRQ events */ - -/* IRQ event - Indicates that a new object added to the container */ -#define DPRC_IRQ_EVENT_OBJ_ADDED 0x00000001 -/* IRQ event - Indicates that an object was removed from the container */ -#define DPRC_IRQ_EVENT_OBJ_REMOVED 0x00000002 -/* IRQ event - Indicates that resources added to the container */ -#define DPRC_IRQ_EVENT_RES_ADDED 0x00000004 -/* IRQ event - Indicates that resources removed from the container */ -#define DPRC_IRQ_EVENT_RES_REMOVED 0x00000008 -/* - * IRQ event - Indicates that one of the descendant containers that opened by - * this container is destroyed - */ -#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010 - -/* - * IRQ event - Indicates that on one of the container's opened object is - * destroyed - */ -#define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020 - -/* Irq event - Indicates that object is created at the container */ -#define DPRC_IRQ_EVENT_OBJ_CREATED 0x00000040 - -/** - * struct dprc_irq_cfg - IRQ configuration - * @paddr: Address that must be written to signal a message-based interrupt - * @val: Value to write into irq_addr address - * @irq_num: A user defined number associated with this IRQ - */ -struct dprc_irq_cfg { - phys_addr_t paddr; - u32 val; - int irq_num; -}; - -int dprc_set_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - struct dprc_irq_cfg *irq_cfg); - -int dprc_get_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - int *type, - struct dprc_irq_cfg *irq_cfg); - -int dprc_set_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 en); - -int dprc_get_irq_enable(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u8 *en); - -int dprc_set_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 mask); - -int dprc_get_irq_mask(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *mask); - -int dprc_get_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 *status); - -int dprc_clear_irq_status(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - u8 irq_index, - u32 status); - -/** - * struct dprc_attributes - Container attributes - * @container_id: Container's ID - * @icid: Container's ICID - * @portal_id: Container's portal ID - * @options: Container's options as set at container's creation - */ -struct dprc_attributes { - int container_id; - u16 icid; - int portal_id; - u64 options; -}; - -int dprc_get_attributes(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - struct dprc_attributes *attributes); - -int dprc_get_obj_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *obj_count); - -int dprc_get_obj(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int obj_index, - struct fsl_mc_obj_desc *obj_desc); - -int dprc_get_obj_desc(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - struct fsl_mc_obj_desc *obj_desc); - -int dprc_set_obj_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 irq_index, - struct dprc_irq_cfg *irq_cfg); - -int dprc_get_obj_irq(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 irq_index, - int *type, - struct dprc_irq_cfg *irq_cfg); - -int dprc_get_res_count(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *type, - int *res_count); - -/** - * enum dprc_iter_status - Iteration status - * @DPRC_ITER_STATUS_FIRST: Perform first iteration - * @DPRC_ITER_STATUS_MORE: Indicates more/next iteration is needed - * @DPRC_ITER_STATUS_LAST: Indicates last iteration - */ -enum dprc_iter_status { - DPRC_ITER_STATUS_FIRST = 0, - DPRC_ITER_STATUS_MORE = 1, - DPRC_ITER_STATUS_LAST = 2 -}; - -/* Region flags */ -/* Cacheable - Indicates that region should be mapped as cacheable */ -#define DPRC_REGION_CACHEABLE 0x00000001 - -/** - * enum dprc_region_type - Region type - * @DPRC_REGION_TYPE_MC_PORTAL: MC portal region - * @DPRC_REGION_TYPE_QBMAN_PORTAL: Qbman portal region - */ -enum dprc_region_type { - DPRC_REGION_TYPE_MC_PORTAL, - DPRC_REGION_TYPE_QBMAN_PORTAL -}; - -/** - * struct dprc_region_desc - Mappable region descriptor - * @base_offset: Region offset from region's base address. - * For DPMCP and DPRC objects, region base is offset from SoC MC portals - * base address; For DPIO, region base is offset from SoC QMan portals - * base address - * @size: Region size (in bytes) - * @flags: Region attributes - * @type: Portal region type - */ -struct dprc_region_desc { - u32 base_offset; - u32 size; - u32 flags; - enum dprc_region_type type; -}; - -int dprc_get_obj_region(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - char *obj_type, - int obj_id, - u8 region_index, - struct dprc_region_desc *region_desc); - -int dprc_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver); - -int dprc_get_container_id(struct fsl_mc_io *mc_io, - u32 cmd_flags, - int *container_id); - -#endif /* _FSL_DPRC_H */ - diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c index 8ea3920400a0..8f313a41240b 100644 --- a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c +++ b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c @@ -1,11 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * fsl-mc object allocator driver * * Copyright (C) 2013-2016 Freescale Semiconductor, Inc. * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/module.h> @@ -14,11 +12,11 @@ #include "fsl-mc-private.h" -static bool __must_check fsl_mc_is_allocatable(const char *obj_type) +static bool __must_check fsl_mc_is_allocatable(struct fsl_mc_device *mc_dev) { - return strcmp(obj_type, "dpbp") == 0 || - strcmp(obj_type, "dpmcp") == 0 || - strcmp(obj_type, "dpcon") == 0; + return is_fsl_mc_bus_dpbp(mc_dev) || + is_fsl_mc_bus_dpmcp(mc_dev) || + is_fsl_mc_bus_dpcon(mc_dev); } /** @@ -41,25 +39,25 @@ static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus struct fsl_mc_device *mc_bus_dev = &mc_bus->mc_dev; int error = -EINVAL; - if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES)) + if (pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES) goto out; - if (WARN_ON(!fsl_mc_is_allocatable(mc_dev->obj_desc.type))) + if (!fsl_mc_is_allocatable(mc_dev)) goto out; - if (WARN_ON(mc_dev->resource)) + if (mc_dev->resource) goto out; res_pool = &mc_bus->resource_pools[pool_type]; - if (WARN_ON(res_pool->type != pool_type)) + if (res_pool->type != pool_type) goto out; - if (WARN_ON(res_pool->mc_bus != mc_bus)) + if (res_pool->mc_bus != mc_bus) goto out; mutex_lock(&res_pool->mutex); - if (WARN_ON(res_pool->max_count < 0)) + if (res_pool->max_count < 0) goto out_unlock; - if (WARN_ON(res_pool->free_count < 0 || - res_pool->free_count > res_pool->max_count)) + if (res_pool->free_count < 0 || + res_pool->free_count > res_pool->max_count) goto out_unlock; resource = devm_kzalloc(&mc_bus_dev->dev, sizeof(*resource), @@ -105,25 +103,25 @@ static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device struct fsl_mc_resource *resource; int error = -EINVAL; - if (WARN_ON(!fsl_mc_is_allocatable(mc_dev->obj_desc.type))) + if (!fsl_mc_is_allocatable(mc_dev)) goto out; resource = mc_dev->resource; - if (WARN_ON(!resource || resource->data != mc_dev)) + if (!resource || resource->data != mc_dev) goto out; mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent); mc_bus = to_fsl_mc_bus(mc_bus_dev); res_pool = resource->parent_pool; - if (WARN_ON(res_pool != &mc_bus->resource_pools[resource->type])) + if (res_pool != &mc_bus->resource_pools[resource->type]) goto out; mutex_lock(&res_pool->mutex); - if (WARN_ON(res_pool->max_count <= 0)) + if (res_pool->max_count <= 0) goto out_unlock; - if (WARN_ON(res_pool->free_count <= 0 || - res_pool->free_count > res_pool->max_count)) + if (res_pool->free_count <= 0 || + res_pool->free_count > res_pool->max_count) goto out_unlock; /* @@ -187,11 +185,11 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, FSL_MC_NUM_POOL_TYPES); *new_resource = NULL; - if (WARN_ON(pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES)) + if (pool_type < 0 || pool_type >= FSL_MC_NUM_POOL_TYPES) goto out; res_pool = &mc_bus->resource_pools[pool_type]; - if (WARN_ON(res_pool->mc_bus != mc_bus)) + if (res_pool->mc_bus != mc_bus) goto out; mutex_lock(&res_pool->mutex); @@ -199,7 +197,6 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, struct fsl_mc_resource, node); if (!resource) { - WARN_ON(res_pool->free_count != 0); error = -ENXIO; dev_err(&mc_bus_dev->dev, "No more resources of type %s left\n", @@ -207,12 +204,12 @@ int __must_check fsl_mc_resource_allocate(struct fsl_mc_bus *mc_bus, goto out_unlock; } - if (WARN_ON(resource->type != pool_type)) + if (resource->type != pool_type) goto out_unlock; - if (WARN_ON(resource->parent_pool != res_pool)) + if (resource->parent_pool != res_pool) goto out_unlock; - if (WARN_ON(res_pool->free_count <= 0 || - res_pool->free_count > res_pool->max_count)) + if (res_pool->free_count <= 0 || + res_pool->free_count > res_pool->max_count) goto out_unlock; list_del_init(&resource->node); @@ -232,15 +229,15 @@ void fsl_mc_resource_free(struct fsl_mc_resource *resource) struct fsl_mc_resource_pool *res_pool; res_pool = resource->parent_pool; - if (WARN_ON(resource->type != res_pool->type)) + if (resource->type != res_pool->type) return; mutex_lock(&res_pool->mutex); - if (WARN_ON(res_pool->free_count < 0 || - res_pool->free_count >= res_pool->max_count)) + if (res_pool->free_count < 0 || + res_pool->free_count >= res_pool->max_count) goto out_unlock; - if (WARN_ON(!list_empty(&resource->node))) + if (!list_empty(&resource->node)) goto out_unlock; list_add_tail(&resource->node, &res_pool->free_list); @@ -279,13 +276,13 @@ int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev, struct fsl_mc_resource *resource = NULL; *new_mc_adev = NULL; - if (WARN_ON(mc_dev->flags & FSL_MC_IS_DPRC)) + if (mc_dev->flags & FSL_MC_IS_DPRC) goto error; - if (WARN_ON(!dev_is_fsl_mc(mc_dev->dev.parent))) + if (!dev_is_fsl_mc(mc_dev->dev.parent)) goto error; - if (WARN_ON(pool_type == FSL_MC_POOL_DPMCP)) + if (pool_type == FSL_MC_POOL_DPMCP) goto error; mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent); @@ -295,7 +292,7 @@ int __must_check fsl_mc_object_allocate(struct fsl_mc_device *mc_dev, goto error; mc_adev = resource->data; - if (WARN_ON(!mc_adev)) + if (!mc_adev) goto error; *new_mc_adev = mc_adev; @@ -318,9 +315,9 @@ void fsl_mc_object_free(struct fsl_mc_device *mc_adev) struct fsl_mc_resource *resource; resource = mc_adev->resource; - if (WARN_ON(resource->type == FSL_MC_POOL_DPMCP)) + if (resource->type == FSL_MC_POOL_DPMCP) return; - if (WARN_ON(resource->data != mc_adev)) + if (resource->data != mc_adev) return; fsl_mc_resource_free(resource); @@ -349,8 +346,8 @@ int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus, struct fsl_mc_resource_pool *res_pool = &mc_bus->resource_pools[FSL_MC_POOL_IRQ]; - if (WARN_ON(irq_count == 0 || - irq_count > FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS)) + if (irq_count == 0 || + irq_count > FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS) return -EINVAL; error = fsl_mc_msi_domain_alloc_irqs(&mc_bus_dev->dev, irq_count); @@ -406,13 +403,13 @@ void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus) struct fsl_mc_resource_pool *res_pool = &mc_bus->resource_pools[FSL_MC_POOL_IRQ]; - if (WARN_ON(!mc_bus->irq_resources)) + if (!mc_bus->irq_resources) return; - if (WARN_ON(res_pool->max_count == 0)) + if (res_pool->max_count == 0) return; - if (WARN_ON(res_pool->free_count != res_pool->max_count)) + if (res_pool->free_count != res_pool->max_count) return; INIT_LIST_HEAD(&res_pool->free_list); @@ -436,19 +433,19 @@ int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev) struct fsl_mc_bus *mc_bus; struct fsl_mc_resource_pool *res_pool; - if (WARN_ON(mc_dev->irqs)) + if (mc_dev->irqs) return -EINVAL; irq_count = mc_dev->obj_desc.irq_count; - if (WARN_ON(irq_count == 0)) + if (irq_count == 0) return -EINVAL; - if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) + if (is_fsl_mc_bus_dprc(mc_dev)) mc_bus = to_fsl_mc_bus(mc_dev); else mc_bus = to_fsl_mc_bus(to_fsl_mc_device(mc_dev->dev.parent)); - if (WARN_ON(!mc_bus->irq_resources)) + if (!mc_bus->irq_resources) return -EINVAL; res_pool = &mc_bus->resource_pools[FSL_MC_POOL_IRQ]; @@ -474,7 +471,6 @@ int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev) irqs[i] = to_fsl_mc_irq(resource); res_allocated_count++; - WARN_ON(irqs[i]->mc_dev); irqs[i]->mc_dev = mc_dev; irqs[i]->dev_irq_index = i; } @@ -502,21 +498,20 @@ void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev) struct fsl_mc_bus *mc_bus; struct fsl_mc_device_irq **irqs = mc_dev->irqs; - if (WARN_ON(!irqs)) + if (!irqs) return; irq_count = mc_dev->obj_desc.irq_count; - if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) + if (is_fsl_mc_bus_dprc(mc_dev)) mc_bus = to_fsl_mc_bus(mc_dev); else mc_bus = to_fsl_mc_bus(to_fsl_mc_device(mc_dev->dev.parent)); - if (WARN_ON(!mc_bus->irq_resources)) + if (!mc_bus->irq_resources) return; for (i = 0; i < irq_count; i++) { - WARN_ON(!irqs[i]->mc_dev); irqs[i]->mc_dev = NULL; fsl_mc_resource_free(&irqs[i]->resource); } @@ -553,17 +548,10 @@ static void fsl_mc_cleanup_resource_pool(struct fsl_mc_device *mc_bus_dev, &mc_bus->resource_pools[pool_type]; int free_count = 0; - WARN_ON(res_pool->type != pool_type); - WARN_ON(res_pool->free_count != res_pool->max_count); - list_for_each_entry_safe(resource, next, &res_pool->free_list, node) { free_count++; - WARN_ON(resource->type != res_pool->type); - WARN_ON(resource->parent_pool != res_pool); devm_kfree(&mc_bus_dev->dev, resource); } - - WARN_ON(free_count != res_pool->free_count); } void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev) @@ -585,11 +573,11 @@ static int fsl_mc_allocator_probe(struct fsl_mc_device *mc_dev) struct fsl_mc_bus *mc_bus; int error; - if (WARN_ON(!fsl_mc_is_allocatable(mc_dev->obj_desc.type))) + if (!fsl_mc_is_allocatable(mc_dev)) return -EINVAL; mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent); - if (WARN_ON(!dev_is_fsl_mc(&mc_bus_dev->dev))) + if (!dev_is_fsl_mc(&mc_bus_dev->dev)) return -EINVAL; mc_bus = to_fsl_mc_bus(mc_bus_dev); @@ -614,7 +602,7 @@ static int fsl_mc_allocator_remove(struct fsl_mc_device *mc_dev) { int error; - if (WARN_ON(!fsl_mc_is_allocatable(mc_dev->obj_desc.type))) + if (!fsl_mc_is_allocatable(mc_dev)) return -EINVAL; if (mc_dev->resource) { @@ -658,8 +646,3 @@ int __init fsl_mc_allocator_driver_init(void) { return fsl_mc_driver_register(&fsl_mc_allocator_driver); } - -void fsl_mc_allocator_driver_exit(void) -{ - fsl_mc_driver_unregister(&fsl_mc_allocator_driver); -} diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c index 409f2b9e70ff..1b333c43aae9 100644 --- a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c +++ b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c @@ -1,12 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Freescale Management Complex (MC) bus driver * * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera <German.Rivera@freescale.com> * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #define pr_fmt(fmt) "fsl-mc: " fmt @@ -22,8 +20,6 @@ #include <linux/dma-mapping.h> #include "fsl-mc-private.h" -#include "dprc-cmd.h" -#include "dpmng-cmd.h" /** * Default DMA mask for devices on a fsl-mc bus @@ -156,22 +152,80 @@ struct bus_type fsl_mc_bus_type = { }; EXPORT_SYMBOL_GPL(fsl_mc_bus_type); +struct device_type fsl_mc_bus_dprc_type = { + .name = "fsl_mc_bus_dprc" +}; + +struct device_type fsl_mc_bus_dpni_type = { + .name = "fsl_mc_bus_dpni" +}; + +struct device_type fsl_mc_bus_dpio_type = { + .name = "fsl_mc_bus_dpio" +}; + +struct device_type fsl_mc_bus_dpsw_type = { + .name = "fsl_mc_bus_dpsw" +}; + +struct device_type fsl_mc_bus_dpbp_type = { + .name = "fsl_mc_bus_dpbp" +}; + +struct device_type fsl_mc_bus_dpcon_type = { + .name = "fsl_mc_bus_dpcon" +}; + +struct device_type fsl_mc_bus_dpmcp_type = { + .name = "fsl_mc_bus_dpmcp" +}; + +struct device_type fsl_mc_bus_dpmac_type = { + .name = "fsl_mc_bus_dpmac" +}; + +struct device_type fsl_mc_bus_dprtc_type = { + .name = "fsl_mc_bus_dprtc" +}; + +static struct device_type *fsl_mc_get_device_type(const char *type) +{ + static const struct { + struct device_type *dev_type; + const char *type; + } dev_types[] = { + { &fsl_mc_bus_dprc_type, "dprc" }, + { &fsl_mc_bus_dpni_type, "dpni" }, + { &fsl_mc_bus_dpio_type, "dpio" }, + { &fsl_mc_bus_dpsw_type, "dpsw" }, + { &fsl_mc_bus_dpbp_type, "dpbp" }, + { &fsl_mc_bus_dpcon_type, "dpcon" }, + { &fsl_mc_bus_dpmcp_type, "dpmcp" }, + { &fsl_mc_bus_dpmac_type, "dpmac" }, + { &fsl_mc_bus_dprtc_type, "dprtc" }, + { NULL, NULL } + }; + int i; + + for (i = 0; dev_types[i].dev_type; i++) + if (!strcmp(dev_types[i].type, type)) + return dev_types[i].dev_type; + + return NULL; +} + static int fsl_mc_driver_probe(struct device *dev) { struct fsl_mc_driver *mc_drv; struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); int error; - if (WARN_ON(!dev->driver)) - return -EINVAL; - mc_drv = to_fsl_mc_driver(dev->driver); - if (WARN_ON(!mc_drv->probe)) - return -EINVAL; error = mc_drv->probe(mc_dev); if (error < 0) { - dev_err(dev, "%s failed: %d\n", __func__, error); + if (error != -EPROBE_DEFER) + dev_err(dev, "%s failed: %d\n", __func__, error); return error; } @@ -184,9 +238,6 @@ static int fsl_mc_driver_remove(struct device *dev) struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev); int error; - if (WARN_ON(!dev->driver)) - return -EINVAL; - error = mc_drv->remove(mc_dev); if (error < 0) { dev_err(dev, "%s failed: %d\n", __func__, error); @@ -292,9 +343,9 @@ static int mc_get_version(struct fsl_mc_io *mc_io, static void fsl_mc_get_root_dprc(struct device *dev, struct device **root_dprc_dev) { - if (WARN_ON(!dev)) { + if (!dev) { *root_dprc_dev = NULL; - } else if (WARN_ON(!dev_is_fsl_mc(dev))) { + } else if (!dev_is_fsl_mc(dev)) { *root_dprc_dev = NULL; } else { *root_dprc_dev = dev; @@ -352,8 +403,6 @@ static int translate_mc_addr(struct fsl_mc_device *mc_dev, struct fsl_mc *mc; fsl_mc_get_root_dprc(&mc_dev->dev, &root_dprc_dev); - if (WARN_ON(!root_dprc_dev)) - return -EINVAL; mc = dev_get_drvdata(root_dprc_dev->parent); if (mc->num_translation_ranges == 0) { @@ -390,10 +439,10 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev, struct device *parent_dev = mc_dev->dev.parent; enum dprc_region_type mc_region_type; - if (strcmp(obj_desc->type, "dprc") == 0 || - strcmp(obj_desc->type, "dpmcp") == 0) { + if (is_fsl_mc_bus_dprc(mc_dev) || + is_fsl_mc_bus_dpmcp(mc_dev)) { mc_region_type = DPRC_REGION_TYPE_MC_PORTAL; - } else if (strcmp(obj_desc->type, "dpio") == 0) { + } else if (is_fsl_mc_bus_dpio(mc_dev)) { mc_region_type = DPRC_REGION_TYPE_QBMAN_PORTAL; } else { /* @@ -401,7 +450,6 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev, * type, as this object type is not supposed to have MMIO * regions */ - WARN_ON(true); return -EINVAL; } @@ -424,7 +472,6 @@ static int fsl_mc_device_get_mmio_regions(struct fsl_mc_device *mc_dev, goto error_cleanup_regions; } - WARN_ON(region_desc.size == 0); error = translate_mc_addr(mc_dev, mc_region_type, region_desc.base_offset, ®ions[i].start); @@ -470,7 +517,7 @@ static void fsl_mc_device_release(struct device *dev) kfree(mc_dev->regions); - if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) + if (is_fsl_mc_bus_dprc(mc_dev)) kfree(to_fsl_mc_bus(mc_dev)); else kfree(mc_dev); @@ -518,6 +565,12 @@ int fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc, mc_dev->dev.parent = parent_dev; mc_dev->dev.bus = &fsl_mc_bus_type; mc_dev->dev.release = fsl_mc_device_release; + mc_dev->dev.type = fsl_mc_get_device_type(obj_desc->type); + if (!mc_dev->dev.type) { + error = -ENODEV; + dev_err(parent_dev, "unknown device type %s\n", obj_desc->type); + goto error_cleanup_dev; + } dev_set_name(&mc_dev->dev, "%s.%d", obj_desc->type, obj_desc->id); if (strcmp(obj_desc->type, "dprc") == 0) { @@ -544,7 +597,7 @@ int fsl_mc_device_add(struct fsl_mc_obj_desc *obj_desc, /* * device being added is the root DPRC device */ - if (WARN_ON(!mc_io)) { + if (!mc_io) { error = -EINVAL; goto error_cleanup_dev; } @@ -826,7 +879,7 @@ static int fsl_mc_bus_remove(struct platform_device *pdev) { struct fsl_mc *mc = platform_get_drvdata(pdev); - if (WARN_ON(!fsl_mc_is_root_dprc(&mc->root_mc_bus_dev->dev))) + if (!fsl_mc_is_root_dprc(&mc->root_mc_bus_dev->dev)) return -EINVAL; fsl_mc_device_remove(mc->root_mc_bus_dev); @@ -878,15 +931,8 @@ static int __init fsl_mc_bus_driver_init(void) if (error < 0) goto error_cleanup_dprc_driver; - error = its_fsl_mc_msi_init(); - if (error < 0) - goto error_cleanup_mc_allocator; - return 0; -error_cleanup_mc_allocator: - fsl_mc_allocator_driver_exit(); - error_cleanup_dprc_driver: dprc_driver_exit(); diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c index f74a6f1764bb..971ad87c584c 100644 --- a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c +++ b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c @@ -1,12 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Freescale Management Complex (MC) bus driver MSI support * * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. * Author: German Rivera <German.Rivera@freescale.com> * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/of_device.h> @@ -47,7 +45,7 @@ static void fsl_mc_msi_update_dom_ops(struct msi_domain_info *info) { struct msi_domain_ops *ops = info->ops; - if (WARN_ON(!ops)) + if (!ops) return; /* @@ -73,7 +71,7 @@ static void __fsl_mc_msi_write_msg(struct fsl_mc_device *mc_bus_dev, if (msi_desc->msg.address_lo == 0x0 && msi_desc->msg.address_hi == 0x0) return; - if (WARN_ON(!owner_mc_dev)) + if (!owner_mc_dev) return; irq_cfg.paddr = ((u64)msi_desc->msg.address_hi << 32) | @@ -124,7 +122,6 @@ static void fsl_mc_msi_write_msg(struct irq_data *irq_data, struct fsl_mc_device_irq *mc_dev_irq = &mc_bus->irq_resources[msi_desc->fsl_mc.msi_index]; - WARN_ON(mc_dev_irq->msi_desc != msi_desc); msi_desc->msg = *msg; /* @@ -137,7 +134,7 @@ static void fsl_mc_msi_update_chip_ops(struct msi_domain_info *info) { struct irq_chip *chip = info->chip; - if (WARN_ON(!chip)) + if (!chip) return; /* @@ -239,7 +236,7 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev, struct irq_domain *msi_domain; int error; - if (WARN_ON(!list_empty(dev_to_msi_list(dev)))) + if (!list_empty(dev_to_msi_list(dev))) return -EINVAL; error = fsl_mc_msi_alloc_descs(dev, irq_count); @@ -247,7 +244,7 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev, return error; msi_domain = dev_get_msi_domain(dev); - if (WARN_ON(!msi_domain)) { + if (!msi_domain) { error = -EINVAL; goto cleanup_msi_descs; } @@ -275,12 +272,12 @@ void fsl_mc_msi_domain_free_irqs(struct device *dev) struct irq_domain *msi_domain; msi_domain = dev_get_msi_domain(dev); - if (WARN_ON(!msi_domain)) + if (!msi_domain) return; msi_domain_free_irqs(msi_domain, dev); - if (WARN_ON(list_empty(dev_to_msi_list(dev)))) + if (list_empty(dev_to_msi_list(dev))) return; fsl_mc_msi_free_descs(dev); diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-private.h b/drivers/staging/fsl-mc/bus/fsl-mc-private.h index 62d398947605..83b89d6241f2 100644 --- a/drivers/staging/fsl-mc/bus/fsl-mc-private.h +++ b/drivers/staging/fsl-mc/bus/fsl-mc-private.h @@ -1,19 +1,384 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Freescale Management Complex (MC) bus private declarations * * Copyright (C) 2016 Freescale Semiconductor, Inc. * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #ifndef _FSL_MC_PRIVATE_H_ #define _FSL_MC_PRIVATE_H_ #include "../include/mc.h" -#include "dprc.h" #include <linux/mutex.h> +/* + * Data Path Management Complex (DPMNG) General API + */ + +/* DPMNG command versioning */ +#define DPMNG_CMD_BASE_VERSION 1 +#define DPMNG_CMD_ID_OFFSET 4 + +#define DPMNG_CMD(id) (((id) << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION) + +/* DPMNG command IDs */ +#define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831) + +struct dpmng_rsp_get_version { + __le32 revision; + __le32 version_major; + __le32 version_minor; +}; + +/* + * Data Path Management Command Portal (DPMCP) API + */ + +/* Minimal supported DPMCP Version */ +#define DPMCP_MIN_VER_MAJOR 3 +#define DPMCP_MIN_VER_MINOR 0 + +/* DPMCP command versioning */ +#define DPMCP_CMD_BASE_VERSION 1 +#define DPMCP_CMD_ID_OFFSET 4 + +#define DPMCP_CMD(id) (((id) << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION) + +/* DPMCP command IDs */ +#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800) +#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b) +#define DPMCP_CMDID_RESET DPMCP_CMD(0x005) + +struct dpmcp_cmd_open { + __le32 dpmcp_id; +}; + +/* + * Initialization and runtime control APIs for DPMCP + */ +int dpmcp_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpmcp_id, + u16 *token); + +int dpmcp_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpmcp_reset(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/* + * Data Path Resource Container (DPRC) API + */ + +/* Minimal supported DPRC Version */ +#define DPRC_MIN_VER_MAJOR 6 +#define DPRC_MIN_VER_MINOR 0 + +/* DPRC command versioning */ +#define DPRC_CMD_BASE_VERSION 1 +#define DPRC_CMD_ID_OFFSET 4 + +#define DPRC_CMD(id) (((id) << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION) + +/* DPRC command IDs */ +#define DPRC_CMDID_CLOSE DPRC_CMD(0x800) +#define DPRC_CMDID_OPEN DPRC_CMD(0x805) +#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05) + +#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004) + +#define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010) +#define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012) +#define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014) +#define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016) +#define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017) + +#define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830) +#define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159) +#define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A) +#define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E) +#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F) + +struct dprc_cmd_open { + __le32 container_id; +}; + +struct dprc_cmd_set_irq { + /* cmd word 0 */ + __le32 irq_val; + u8 irq_index; + u8 pad[3]; + /* cmd word 1 */ + __le64 irq_addr; + /* cmd word 2 */ + __le32 irq_num; +}; + +#define DPRC_ENABLE 0x1 + +struct dprc_cmd_set_irq_enable { + u8 enable; + u8 pad[3]; + u8 irq_index; +}; + +struct dprc_cmd_set_irq_mask { + __le32 mask; + u8 irq_index; +}; + +struct dprc_cmd_get_irq_status { + __le32 status; + u8 irq_index; +}; + +struct dprc_rsp_get_irq_status { + __le32 status; +}; + +struct dprc_cmd_clear_irq_status { + __le32 status; + u8 irq_index; +}; + +struct dprc_rsp_get_attributes { + /* response word 0 */ + __le32 container_id; + __le16 icid; + __le16 pad; + /* response word 1 */ + __le32 options; + __le32 portal_id; +}; + +struct dprc_rsp_get_obj_count { + __le32 pad; + __le32 obj_count; +}; + +struct dprc_cmd_get_obj { + __le32 obj_index; +}; + +struct dprc_rsp_get_obj { + /* response word 0 */ + __le32 pad0; + __le32 id; + /* response word 1 */ + __le16 vendor; + u8 irq_count; + u8 region_count; + __le32 state; + /* response word 2 */ + __le16 version_major; + __le16 version_minor; + __le16 flags; + __le16 pad1; + /* response word 3-4 */ + u8 type[16]; + /* response word 5-6 */ + u8 label[16]; +}; + +struct dprc_cmd_get_obj_region { + /* cmd word 0 */ + __le32 obj_id; + __le16 pad0; + u8 region_index; + u8 pad1; + /* cmd word 1-2 */ + __le64 pad2[2]; + /* cmd word 3-4 */ + u8 obj_type[16]; +}; + +struct dprc_rsp_get_obj_region { + /* response word 0 */ + __le64 pad; + /* response word 1 */ + __le64 base_addr; + /* response word 2 */ + __le32 size; +}; + +struct dprc_cmd_set_obj_irq { + /* cmd word 0 */ + __le32 irq_val; + u8 irq_index; + u8 pad[3]; + /* cmd word 1 */ + __le64 irq_addr; + /* cmd word 2 */ + __le32 irq_num; + __le32 obj_id; + /* cmd word 3-4 */ + u8 obj_type[16]; +}; + +/* + * DPRC API for managing and querying DPAA resources + */ +int dprc_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int container_id, + u16 *token); + +int dprc_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/* DPRC IRQ events */ + +/* IRQ event - Indicates that a new object added to the container */ +#define DPRC_IRQ_EVENT_OBJ_ADDED 0x00000001 +/* IRQ event - Indicates that an object was removed from the container */ +#define DPRC_IRQ_EVENT_OBJ_REMOVED 0x00000002 +/* + * IRQ event - Indicates that one of the descendant containers that opened by + * this container is destroyed + */ +#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010 + +/* + * IRQ event - Indicates that on one of the container's opened object is + * destroyed + */ +#define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020 + +/* Irq event - Indicates that object is created at the container */ +#define DPRC_IRQ_EVENT_OBJ_CREATED 0x00000040 + +/** + * struct dprc_irq_cfg - IRQ configuration + * @paddr: Address that must be written to signal a message-based interrupt + * @val: Value to write into irq_addr address + * @irq_num: A user defined number associated with this IRQ + */ +struct dprc_irq_cfg { + phys_addr_t paddr; + u32 val; + int irq_num; +}; + +int dprc_set_irq(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + struct dprc_irq_cfg *irq_cfg); + +int dprc_set_irq_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u8 en); + +int dprc_set_irq_mask(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 mask); + +int dprc_get_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 *status); + +int dprc_clear_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 status); + +/** + * struct dprc_attributes - Container attributes + * @container_id: Container's ID + * @icid: Container's ICID + * @portal_id: Container's portal ID + * @options: Container's options as set at container's creation + */ +struct dprc_attributes { + int container_id; + u16 icid; + int portal_id; + u64 options; +}; + +int dprc_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dprc_attributes *attributes); + +int dprc_get_obj_count(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + int *obj_count); + +int dprc_get_obj(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + int obj_index, + struct fsl_mc_obj_desc *obj_desc); + +int dprc_set_obj_irq(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *obj_type, + int obj_id, + u8 irq_index, + struct dprc_irq_cfg *irq_cfg); + +/* Region flags */ +/* Cacheable - Indicates that region should be mapped as cacheable */ +#define DPRC_REGION_CACHEABLE 0x00000001 + +/** + * enum dprc_region_type - Region type + * @DPRC_REGION_TYPE_MC_PORTAL: MC portal region + * @DPRC_REGION_TYPE_QBMAN_PORTAL: Qbman portal region + */ +enum dprc_region_type { + DPRC_REGION_TYPE_MC_PORTAL, + DPRC_REGION_TYPE_QBMAN_PORTAL +}; + +/** + * struct dprc_region_desc - Mappable region descriptor + * @base_offset: Region offset from region's base address. + * For DPMCP and DPRC objects, region base is offset from SoC MC portals + * base address; For DPIO, region base is offset from SoC QMan portals + * base address + * @size: Region size (in bytes) + * @flags: Region attributes + * @type: Portal region type + */ +struct dprc_region_desc { + u32 base_offset; + u32 size; + u32 flags; + enum dprc_region_type type; +}; + +int dprc_get_obj_region(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + char *obj_type, + int obj_id, + u8 region_index, + struct dprc_region_desc *region_desc); + +int dprc_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); + +int dprc_get_container_id(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int *container_id); + /** * Maximum number of total IRQs that can be pre-allocated for an MC bus' * IRQ pool @@ -73,8 +438,6 @@ void dprc_driver_exit(void); int __init fsl_mc_allocator_driver_init(void); -void fsl_mc_allocator_driver_exit(void); - void fsl_mc_init_all_resource_pools(struct fsl_mc_device *mc_bus_dev); void fsl_mc_cleanup_all_resource_pools(struct fsl_mc_device *mc_bus_dev); @@ -91,10 +454,6 @@ int fsl_mc_msi_domain_alloc_irqs(struct device *dev, void fsl_mc_msi_domain_free_irqs(struct device *dev); -int __init its_fsl_mc_msi_init(void); - -void its_fsl_mc_msi_cleanup(void); - int fsl_mc_find_msi_domain(struct device *mc_platform_dev, struct irq_domain **mc_msi_domain); diff --git a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c index 123e4af58408..5064d5ddf581 100644 --- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c +++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c @@ -1,12 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Freescale Management Complex (MC) bus driver MSI support * * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. * Author: German Rivera <German.Rivera@freescale.com> * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #include <linux/of_device.h> @@ -15,7 +13,7 @@ #include <linux/msi.h> #include <linux/of.h> #include <linux/of_irq.h> -#include "fsl-mc-private.h" +#include "../include/mc.h" static struct irq_chip its_msi_irq_chip = { .name = "ITS-fMSI", @@ -32,11 +30,11 @@ static int its_fsl_mc_msi_prepare(struct irq_domain *msi_domain, struct fsl_mc_device *mc_bus_dev; struct msi_domain_info *msi_info; - if (WARN_ON(!dev_is_fsl_mc(dev))) + if (!dev_is_fsl_mc(dev)) return -EINVAL; mc_bus_dev = to_fsl_mc_device(dev); - if (WARN_ON(!(mc_bus_dev->flags & FSL_MC_IS_DPRC))) + if (!(mc_bus_dev->flags & FSL_MC_IS_DPRC)) return -EINVAL; /* @@ -67,7 +65,7 @@ static const struct of_device_id its_device_id[] = { {}, }; -int __init its_fsl_mc_msi_init(void) +static int __init its_fsl_mc_msi_init(void) { struct device_node *np; struct irq_domain *parent; @@ -93,30 +91,10 @@ int __init its_fsl_mc_msi_init(void) continue; } - WARN_ON(mc_msi_domain->host_data != - &its_fsl_mc_msi_domain_info); - pr_info("fsl-mc MSI: %pOF domain created\n", np); } return 0; } -void its_fsl_mc_msi_cleanup(void) -{ - struct device_node *np; - - for (np = of_find_matching_node(NULL, its_device_id); np; - np = of_find_matching_node(np, its_device_id)) { - struct irq_domain *mc_msi_domain = irq_find_matching_host( - np, - DOMAIN_BUS_FSL_MC_MSI); - - if (!of_property_read_bool(np, "msi-controller")) - continue; - - if (mc_msi_domain && - mc_msi_domain->host_data == &its_fsl_mc_msi_domain_info) - irq_domain_remove(mc_msi_domain); - } -} +early_initcall(its_fsl_mc_msi_init); diff --git a/drivers/staging/fsl-mc/bus/mc-io.c b/drivers/staging/fsl-mc/bus/mc-io.c index f65c23ce83f1..7e6fb360ef12 100644 --- a/drivers/staging/fsl-mc/bus/mc-io.c +++ b/drivers/staging/fsl-mc/bus/mc-io.c @@ -1,54 +1,23 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/io.h> #include "../include/mc.h" #include "fsl-mc-private.h" -#include "dpmcp.h" -#include "dpmcp-cmd.h" static int fsl_mc_io_set_dpmcp(struct fsl_mc_io *mc_io, struct fsl_mc_device *dpmcp_dev) { int error; - if (WARN_ON(!dpmcp_dev)) - return -EINVAL; - - if (WARN_ON(mc_io->dpmcp_dev)) + if (mc_io->dpmcp_dev) return -EINVAL; - if (WARN_ON(dpmcp_dev->mc_io)) + if (dpmcp_dev->mc_io) return -EINVAL; error = dpmcp_open(mc_io, @@ -68,12 +37,6 @@ static void fsl_mc_io_unset_dpmcp(struct fsl_mc_io *mc_io) int error; struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev; - if (WARN_ON(!dpmcp_dev)) - return; - - if (WARN_ON(dpmcp_dev->mc_io != mc_io)) - return; - error = dpmcp_close(mc_io, 0, dpmcp_dev->mc_handle); @@ -210,7 +173,7 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev, if (mc_dev->flags & FSL_MC_IS_DPRC) { mc_bus_dev = mc_dev; } else { - if (WARN_ON(!dev_is_fsl_mc(mc_dev->dev.parent))) + if (!dev_is_fsl_mc(mc_dev->dev.parent)) return error; mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent); @@ -224,8 +187,6 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev, error = -EINVAL; dpmcp_dev = resource->data; - if (WARN_ON(!dpmcp_dev)) - goto error_cleanup_resource; if (dpmcp_dev->obj_desc.ver_major < DPMCP_MIN_VER_MAJOR || (dpmcp_dev->obj_desc.ver_major == DPMCP_MIN_VER_MAJOR && @@ -238,15 +199,9 @@ int __must_check fsl_mc_portal_allocate(struct fsl_mc_device *mc_dev, goto error_cleanup_resource; } - if (WARN_ON(dpmcp_dev->obj_desc.region_count == 0)) - goto error_cleanup_resource; - mc_portal_phys_addr = dpmcp_dev->regions[0].start; mc_portal_size = resource_size(dpmcp_dev->regions); - if (WARN_ON(mc_portal_size != mc_bus_dev->mc_io->portal_size)) - goto error_cleanup_resource; - error = fsl_create_mc_io(&mc_bus_dev->dev, mc_portal_phys_addr, mc_portal_size, dpmcp_dev, @@ -279,14 +234,12 @@ void fsl_mc_portal_free(struct fsl_mc_io *mc_io) * to have a DPMCP object associated with. */ dpmcp_dev = mc_io->dpmcp_dev; - if (WARN_ON(!dpmcp_dev)) - return; resource = dpmcp_dev->resource; - if (WARN_ON(!resource || resource->type != FSL_MC_POOL_DPMCP)) + if (!resource || resource->type != FSL_MC_POOL_DPMCP) return; - if (WARN_ON(resource->data != dpmcp_dev)) + if (resource->data != dpmcp_dev) return; fsl_destroy_mc_io(mc_io); @@ -304,9 +257,6 @@ int fsl_mc_portal_reset(struct fsl_mc_io *mc_io) int error; struct fsl_mc_device *dpmcp_dev = mc_io->dpmcp_dev; - if (WARN_ON(!dpmcp_dev)) - return -EINVAL; - error = dpmcp_reset(mc_io, 0, dpmcp_dev->mc_handle); if (error < 0) { dev_err(&dpmcp_dev->dev, "dpmcp_reset() failed: %d\n", error); diff --git a/drivers/staging/fsl-mc/bus/mc-sys.c b/drivers/staging/fsl-mc/bus/mc-sys.c index 7ce105bd3977..f09d75d9a976 100644 --- a/drivers/staging/fsl-mc/bus/mc-sys.c +++ b/drivers/staging/fsl-mc/bus/mc-sys.c @@ -1,35 +1,9 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* * Copyright 2013-2016 Freescale Semiconductor Inc. * * I/O services to send MC commands to the MC hardware * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/delay.h> @@ -40,7 +14,7 @@ #include <linux/io-64-nonatomic-hi-lo.h> #include "../include/mc.h" -#include "dpmcp.h" +#include "fsl-mc-private.h" /** * Timeout in milliseconds to wait for the completion of an MC command @@ -85,7 +59,7 @@ static int mc_status_to_error(enum mc_cmd_status status) [MC_CMD_STATUS_INVALID_STATE] = -ENODEV, }; - if (WARN_ON((u32)status >= ARRAY_SIZE(mc_status_to_error_map))) + if ((u32)status >= ARRAY_SIZE(mc_status_to_error_map)) return -EINVAL; return mc_status_to_error_map[status]; @@ -273,8 +247,7 @@ int mc_send_command(struct fsl_mc_io *mc_io, struct mc_command *cmd) enum mc_cmd_status status; unsigned long irq_flags = 0; - if (WARN_ON(in_irq() && - !(mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL))) + if (in_irq() && !(mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL)) return -EINVAL; if (mc_io->flags & FSL_MC_IO_ATOMIC_CONTEXT_PORTAL) @@ -320,4 +293,4 @@ common_exit: return error; } -EXPORT_SYMBOL(mc_send_command); +EXPORT_SYMBOL_GPL(mc_send_command); diff --git a/drivers/staging/fsl-mc/include/dpaa2-fd.h b/drivers/staging/fsl-mc/include/dpaa2-fd.h index cf7857f00a5c..3e022001f0b1 100644 --- a/drivers/staging/fsl-mc/include/dpaa2-fd.h +++ b/drivers/staging/fsl-mc/include/dpaa2-fd.h @@ -1,33 +1,8 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_DPAA2_FD_H #define __FSL_DPAA2_FD_H diff --git a/drivers/staging/fsl-mc/include/dpaa2-global.h b/drivers/staging/fsl-mc/include/dpaa2-global.h index 0326447fde4e..9bc0713346a8 100644 --- a/drivers/staging/fsl-mc/include/dpaa2-global.h +++ b/drivers/staging/fsl-mc/include/dpaa2-global.h @@ -1,33 +1,8 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright 2016 NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_DPAA2_GLOBAL_H #define __FSL_DPAA2_GLOBAL_H diff --git a/drivers/staging/fsl-mc/include/dpaa2-io.h b/drivers/staging/fsl-mc/include/dpaa2-io.h index afc2d060d077..9cb1eec87a9c 100644 --- a/drivers/staging/fsl-mc/include/dpaa2-io.h +++ b/drivers/staging/fsl-mc/include/dpaa2-io.h @@ -1,33 +1,8 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2014-2016 Freescale Semiconductor Inc. * Copyright NXP * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of Freescale Semiconductor nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_DPAA2_IO_H #define __FSL_DPAA2_IO_H @@ -88,6 +63,8 @@ void dpaa2_io_down(struct dpaa2_io *d); irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj); +struct dpaa2_io *dpaa2_io_service_select(int cpu); + /** * struct dpaa2_io_notification_ctx - The DPIO notification context structure * @cb: The callback to be invoked when the notification arrives @@ -120,13 +97,9 @@ void dpaa2_io_service_deregister(struct dpaa2_io *service, int dpaa2_io_service_rearm(struct dpaa2_io *service, struct dpaa2_io_notification_ctx *ctx); -int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid, - struct dpaa2_io_store *s); int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid, struct dpaa2_io_store *s); -int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, u32 fqid, - const struct dpaa2_fd *fd); int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, u32 qdid, u8 prio, u16 qdbin, const struct dpaa2_fd *fd); int dpaa2_io_service_release(struct dpaa2_io *d, u32 bpid, diff --git a/drivers/staging/fsl-mc/include/dpbp.h b/drivers/staging/fsl-mc/include/dpbp.h index e9e04ccea82b..4a1809604319 100644 --- a/drivers/staging/fsl-mc/include/dpbp.h +++ b/drivers/staging/fsl-mc/include/dpbp.h @@ -1,34 +1,7 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ /* * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_DPBP_H #define __FSL_DPBP_H diff --git a/drivers/staging/fsl-mc/include/dpcon.h b/drivers/staging/fsl-mc/include/dpcon.h index efa23906b364..062e90ad929b 100644 --- a/drivers/staging/fsl-mc/include/dpcon.h +++ b/drivers/staging/fsl-mc/include/dpcon.h @@ -1,33 +1,7 @@ -/* Copyright 2013-2016 Freescale Semiconductor Inc. +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ +/* + * Copyright 2013-2016 Freescale Semiconductor Inc. * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the name of the above-listed copyright holders nor the - * names of any contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * - * ALTERNATIVELY, this software may be distributed under the terms of the - * GNU General Public License ("GPL") as published by the Free Software - * Foundation, either version 2 of that License or (at your option) any - * later version. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. */ #ifndef __FSL_DPCON_H #define __FSL_DPCON_H @@ -62,11 +36,6 @@ int dpcon_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); -int dpcon_is_enabled(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 token, - int *en); - int dpcon_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); @@ -107,9 +76,4 @@ int dpcon_set_notification(struct fsl_mc_io *mc_io, u16 token, struct dpcon_notification_cfg *cfg); -int dpcon_get_api_version(struct fsl_mc_io *mc_io, - u32 cmd_flags, - u16 *major_ver, - u16 *minor_ver); - #endif /* __FSL_DPCON_H */ diff --git a/drivers/staging/fsl-mc/include/mc.h b/drivers/staging/fsl-mc/include/mc.h index aafe63a21f49..765ba41f5987 100644 --- a/drivers/staging/fsl-mc/include/mc.h +++ b/drivers/staging/fsl-mc/include/mc.h @@ -1,12 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Freescale Management Complex (MC) bus public interface * * Copyright (C) 2014-2016 Freescale Semiconductor, Inc. * Author: German Rivera <German.Rivera@freescale.com> * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. */ #ifndef _FSL_MC_H_ #define _FSL_MC_H_ @@ -325,7 +323,7 @@ static inline void mc_cmd_read_api_version(struct mc_command *cmd, struct fsl_mc_io { struct device *dev; u16 flags; - u16 portal_size; + u32 portal_size; phys_addr_t portal_phys_addr; void __iomem *portal_virt_addr; struct fsl_mc_device *dpmcp_dev; @@ -398,4 +396,59 @@ void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev); extern struct bus_type fsl_mc_bus_type; +extern struct device_type fsl_mc_bus_dprc_type; +extern struct device_type fsl_mc_bus_dpni_type; +extern struct device_type fsl_mc_bus_dpio_type; +extern struct device_type fsl_mc_bus_dpsw_type; +extern struct device_type fsl_mc_bus_dpbp_type; +extern struct device_type fsl_mc_bus_dpcon_type; +extern struct device_type fsl_mc_bus_dpmcp_type; +extern struct device_type fsl_mc_bus_dpmac_type; +extern struct device_type fsl_mc_bus_dprtc_type; + +static inline bool is_fsl_mc_bus_dprc(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dprc_type; +} + +static inline bool is_fsl_mc_bus_dpni(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpni_type; +} + +static inline bool is_fsl_mc_bus_dpio(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpio_type; +} + +static inline bool is_fsl_mc_bus_dpsw(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpsw_type; +} + +static inline bool is_fsl_mc_bus_dpbp(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpbp_type; +} + +static inline bool is_fsl_mc_bus_dpcon(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpcon_type; +} + +static inline bool is_fsl_mc_bus_dpmcp(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpmcp_type; +} + +static inline bool is_fsl_mc_bus_dpmac(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dpmac_type; +} + +static inline bool is_fsl_mc_bus_dprtc(const struct fsl_mc_device *mc_dev) +{ + return mc_dev->dev.type == &fsl_mc_bus_dprtc_type; +} + #endif /* _FSL_MC_H_ */ diff --git a/drivers/staging/fsl-mc/overview.rst b/drivers/staging/fsl-mc/overview.rst new file mode 100644 index 000000000000..79fede4447d6 --- /dev/null +++ b/drivers/staging/fsl-mc/overview.rst @@ -0,0 +1,404 @@ +.. include:: <isonum.txt> + +DPAA2 (Data Path Acceleration Architecture Gen2) Overview +========================================================= + +:Copyright: |copy| 2015 Freescale Semiconductor Inc. +:Copyright: |copy| 2018 NXP + +This document provides an overview of the Freescale DPAA2 architecture +and how it is integrated into the Linux kernel. + +Introduction +============ + +DPAA2 is a hardware architecture designed for high-speeed network +packet processing. DPAA2 consists of sophisticated mechanisms for +processing Ethernet packets, queue management, buffer management, +autonomous L2 switching, virtual Ethernet bridging, and accelerator +(e.g. crypto) sharing. + +A DPAA2 hardware component called the Management Complex (or MC) manages the +DPAA2 hardware resources. The MC provides an object-based abstraction for +software drivers to use the DPAA2 hardware. +The MC uses DPAA2 hardware resources such as queues, buffer pools, and +network ports to create functional objects/devices such as network +interfaces, an L2 switch, or accelerator instances. +The MC provides memory-mapped I/O command interfaces (MC portals) +which DPAA2 software drivers use to operate on DPAA2 objects. + +The diagram below shows an overview of the DPAA2 resource management +architecture:: + + +--------------------------------------+ + | OS | + | DPAA2 drivers | + | | | + +-----------------------------|--------+ + | + | (create,discover,connect + | config,use,destroy) + | + DPAA2 | + +------------------------| mc portal |-+ + | | | + | +- - - - - - - - - - - - -V- - -+ | + | | | | + | | Management Complex (MC) | | + | | | | + | +- - - - - - - - - - - - - - - -+ | + | | + | Hardware Hardware | + | Resources Objects | + | --------- ------- | + | -queues -DPRC | + | -buffer pools -DPMCP | + | -Eth MACs/ports -DPIO | + | -network interface -DPNI | + | profiles -DPMAC | + | -queue portals -DPBP | + | -MC portals ... | + | ... | + | | + +--------------------------------------+ + + +The MC mediates operations such as create, discover, +connect, configuration, and destroy. Fast-path operations +on data, such as packet transmit/receive, are not mediated by +the MC and are done directly using memory mapped regions in +DPIO objects. + +Overview of DPAA2 Objects +========================= + +The section provides a brief overview of some key DPAA2 objects. +A simple scenario is described illustrating the objects involved +in creating a network interfaces. + +DPRC (Datapath Resource Container) +---------------------------------- + +A DPRC is a container object that holds all the other +types of DPAA2 objects. In the example diagram below there +are 8 objects of 5 types (DPMCP, DPIO, DPBP, DPNI, and DPMAC) +in the container. + +:: + + +---------------------------------------------------------+ + | DPRC | + | | + | +-------+ +-------+ +-------+ +-------+ +-------+ | + | | DPMCP | | DPIO | | DPBP | | DPNI | | DPMAC | | + | +-------+ +-------+ +-------+ +---+---+ +---+---+ | + | | DPMCP | | DPIO | | + | +-------+ +-------+ | + | | DPMCP | | + | +-------+ | + | | + +---------------------------------------------------------+ + +From the point of view of an OS, a DPRC behaves similar to a plug and +play bus, like PCI. DPRC commands can be used to enumerate the contents +of the DPRC, discover the hardware objects present (including mappable +regions and interrupts). + +:: + + DPRC.1 (bus) + | + +--+--------+-------+-------+-------+ + | | | | | + DPMCP.1 DPIO.1 DPBP.1 DPNI.1 DPMAC.1 + DPMCP.2 DPIO.2 + DPMCP.3 + +Hardware objects can be created and destroyed dynamically, providing +the ability to hot plug/unplug objects in and out of the DPRC. + +A DPRC has a mappable MMIO region (an MC portal) that can be used +to send MC commands. It has an interrupt for status events (like +hotplug). +All objects in a container share the same hardware "isolation context". +This means that with respect to an IOMMU the isolation granularity +is at the DPRC (container) level, not at the individual object +level. + +DPRCs can be defined statically and populated with objects +via a config file passed to the MC when firmware starts it. + +DPAA2 Objects for an Ethernet Network Interface +----------------------------------------------- + +A typical Ethernet NIC is monolithic-- the NIC device contains TX/RX +queuing mechanisms, configuration mechanisms, buffer management, +physical ports, and interrupts. DPAA2 uses a more granular approach +utilizing multiple hardware objects. Each object provides specialized +functions. Groups of these objects are used by software to provide +Ethernet network interface functionality. This approach provides +efficient use of finite hardware resources, flexibility, and +performance advantages. + +The diagram below shows the objects needed for a simple +network interface configuration on a system with 2 CPUs. + +:: + + +---+---+ +---+---+ + CPU0 CPU1 + +---+---+ +---+---+ + | | + +---+---+ +---+---+ + DPIO DPIO + +---+---+ +---+---+ + \ / + \ / + \ / + +---+---+ + DPNI --- DPBP,DPMCP + +---+---+ + | + | + +---+---+ + DPMAC + +---+---+ + | + port/PHY + +Below the objects are described. For each object a brief description +is provided along with a summary of the kinds of operations the object +supports and a summary of key resources of the object (MMIO regions +and IRQs). + +DPMAC (Datapath Ethernet MAC) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Represents an Ethernet MAC, a hardware device that connects to an Ethernet +PHY and allows physical transmission and reception of Ethernet frames. + +- MMIO regions: none +- IRQs: DPNI link change +- commands: set link up/down, link config, get stats, + IRQ config, enable, reset + +DPNI (Datapath Network Interface) +Contains TX/RX queues, network interface configuration, and RX buffer pool +configuration mechanisms. The TX/RX queues are in memory and are identified +by queue number. + +- MMIO regions: none +- IRQs: link state +- commands: port config, offload config, queue config, + parse/classify config, IRQ config, enable, reset + +DPIO (Datapath I/O) +~~~~~~~~~~~~~~~~~~~ +Provides interfaces to enqueue and dequeue +packets and do hardware buffer pool management operations. The DPAA2 +architecture separates the mechanism to access queues (the DPIO object) +from the queues themselves. The DPIO provides an MMIO interface to +enqueue/dequeue packets. To enqueue something a descriptor is written +to the DPIO MMIO region, which includes the target queue number. +There will typically be one DPIO assigned to each CPU. This allows all +CPUs to simultaneously perform enqueue/dequeued operations. DPIOs are +expected to be shared by different DPAA2 drivers. + +- MMIO regions: queue operations, buffer management +- IRQs: data availability, congestion notification, buffer + pool depletion +- commands: IRQ config, enable, reset + +DPBP (Datapath Buffer Pool) +~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Represents a hardware buffer pool. + +- MMIO regions: none +- IRQs: none +- commands: enable, reset + +DPMCP (Datapath MC Portal) +~~~~~~~~~~~~~~~~~~~~~~~~~~ +Provides an MC command portal. +Used by drivers to send commands to the MC to manage +objects. + +- MMIO regions: MC command portal +- IRQs: command completion +- commands: IRQ config, enable, reset + +Object Connections +================== +Some objects have explicit relationships that must +be configured: + +- DPNI <--> DPMAC +- DPNI <--> DPNI +- DPNI <--> L2-switch-port + + A DPNI must be connected to something such as a DPMAC, + another DPNI, or L2 switch port. The DPNI connection + is made via a DPRC command. + +:: + + +-------+ +-------+ + | DPNI | | DPMAC | + +---+---+ +---+---+ + | | + +==========+ + +- DPNI <--> DPBP + + A network interface requires a 'buffer pool' (DPBP + object) which provides a list of pointers to memory + where received Ethernet data is to be copied. The + Ethernet driver configures the DPBPs associated with + the network interface. + +Interrupts +========== +All interrupts generated by DPAA2 objects are message +interrupts. At the hardware level message interrupts +generated by devices will normally have 3 components-- +1) a non-spoofable 'device-id' expressed on the hardware +bus, 2) an address, 3) a data value. + +In the case of DPAA2 devices/objects, all objects in the +same container/DPRC share the same 'device-id'. +For ARM-based SoC this is the same as the stream ID. + + +DPAA2 Linux Drivers Overview +============================ + +This section provides an overview of the Linux kernel drivers for +DPAA2-- 1) the bus driver and associated "DPAA2 infrastructure" +drivers and 2) functional object drivers (such as Ethernet). + +As described previously, a DPRC is a container that holds the other +types of DPAA2 objects. It is functionally similar to a plug-and-play +bus controller. +Each object in the DPRC is a Linux "device" and is bound to a driver. +The diagram below shows the Linux drivers involved in a networking +scenario and the objects bound to each driver. A brief description +of each driver follows. + +:: + + +------------+ + | OS Network | + | Stack | + +------------+ +------------+ + | Allocator |. . . . . . . | Ethernet | + |(DPMCP,DPBP)| | (DPNI) | + +-.----------+ +---+---+----+ + . . ^ | + . . <data avail, | | <enqueue, + . . tx confirm> | | dequeue> + +-------------+ . | | + | DPRC driver | . +---+---V----+ +---------+ + | (DPRC) | . . . . . .| DPIO driver| | MAC | + +----------+--+ | (DPIO) | | (DPMAC) | + | +------+-----+ +-----+---+ + |<dev add/remove> | | + | | | + +--------+----------+ | +--+---+ + | MC-bus driver | | | PHY | + | | | |driver| + | /bus/fsl-mc | | +--+---+ + +-------------------+ | | + | | + ========================= HARDWARE =========|=================|====== + DPIO | + | | + DPNI---DPBP | + | | + DPMAC | + | | + PHY ---------------+ + ============================================|======================== + +A brief description of each driver is provided below. + +MC-bus driver +------------- +The MC-bus driver is a platform driver and is probed from a +node in the device tree (compatible "fsl,qoriq-mc") passed in by boot +firmware. It is responsible for bootstrapping the DPAA2 kernel +infrastructure. +Key functions include: + +- registering a new bus type named "fsl-mc" with the kernel, + and implementing bus call-backs (e.g. match/uevent/dev_groups) +- implementing APIs for DPAA2 driver registration and for device + add/remove +- creates an MSI IRQ domain +- doing a 'device add' to expose the 'root' DPRC, in turn triggering + a bind of the root DPRC to the DPRC driver + +The binding for the MC-bus device-tree node can be consulted at +*Documentation/devicetree/bindings/misc/fsl,qoriq-mc.txt*. +The sysfs bind/unbind interfaces for the MC-bus can be consulted at +*Documentation/ABI/testing/sysfs-bus-fsl-mc*. + +DPRC driver +----------- +The DPRC driver is bound to DPRC objects and does runtime management +of a bus instance. It performs the initial bus scan of the DPRC +and handles interrupts for container events such as hot plug by +re-scanning the DPRC. + +Allocator +--------- +Certain objects such as DPMCP and DPBP are generic and fungible, +and are intended to be used by other drivers. For example, +the DPAA2 Ethernet driver needs: + +- DPMCPs to send MC commands, to configure network interfaces +- DPBPs for network buffer pools + +The allocator driver registers for these allocatable object types +and those objects are bound to the allocator when the bus is probed. +The allocator maintains a pool of objects that are available for +allocation by other DPAA2 drivers. + +DPIO driver +----------- +The DPIO driver is bound to DPIO objects and provides services that allow +other drivers such as the Ethernet driver to enqueue and dequeue data for +their respective objects. +Key services include: + +- data availability notifications +- hardware queuing operations (enqueue and dequeue of data) +- hardware buffer pool management + +To transmit a packet the Ethernet driver puts data on a queue and +invokes a DPIO API. For receive, the Ethernet driver registers +a data availability notification callback. To dequeue a packet +a DPIO API is used. +There is typically one DPIO object per physical CPU for optimum +performance, allowing different CPUs to simultaneously enqueue +and dequeue data. + +The DPIO driver operates on behalf of all DPAA2 drivers +active in the kernel-- Ethernet, crypto, compression, +etc. + +Ethernet driver +--------------- +The Ethernet driver is bound to a DPNI and implements the kernel +interfaces needed to connect the DPAA2 network interface to +the network stack. +Each DPNI corresponds to a Linux network interface. + +MAC driver +---------- +An Ethernet PHY is an off-chip, board specific component and is managed +by the appropriate PHY driver via an mdio bus. The MAC driver +plays a role of being a proxy between the PHY driver and the +MC. It does this proxy via the MC commands to a DPMAC object. +If the PHY driver signals a link change, the MAC driver notifies +the MC via a DPMAC command. If a network interface is brought +up or down, the MC notifies the DPMAC driver via an interrupt and +the driver can take appropriate action. diff --git a/drivers/staging/fwserial/dma_fifo.c b/drivers/staging/fwserial/dma_fifo.c index 8b23a553fd4a..5dcbab6fd622 100644 --- a/drivers/staging/fwserial/dma_fifo.c +++ b/drivers/staging/fwserial/dma_fifo.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * DMA-able FIFO implementation * * Copyright (C) 2012 Peter Hurley <peter@hurleysoftware.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/kernel.h> diff --git a/drivers/staging/fwserial/dma_fifo.h b/drivers/staging/fwserial/dma_fifo.h index 37a91c6a1709..c46a06336975 100644 --- a/drivers/staging/fwserial/dma_fifo.h +++ b/drivers/staging/fwserial/dma_fifo.h @@ -1,17 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * DMA-able FIFO interface * * Copyright (C) 2012 Peter Hurley <peter@hurleysoftware.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _DMA_FIFO_H_ diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c index bba7e9c888b3..1993b03a6f2d 100644 --- a/drivers/staging/fwserial/fwserial.c +++ b/drivers/staging/fwserial/fwserial.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * FireWire Serial driver * * Copyright (C) 2012 Peter Hurley <peter@hurleysoftware.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/staging/greybus/arche-apb-ctrl.c b/drivers/staging/greybus/arche-apb-ctrl.c index b0c66112eb18..cc8d6fc831b4 100644 --- a/drivers/staging/greybus/arche-apb-ctrl.c +++ b/drivers/staging/greybus/arche-apb-ctrl.c @@ -72,14 +72,14 @@ static int coldboot_seq(struct platform_device *pdev) int ret; if (apb->init_disabled || - apb->state == ARCHE_PLATFORM_STATE_ACTIVE) + apb->state == ARCHE_PLATFORM_STATE_ACTIVE) return 0; /* Hold APB in reset state */ assert_reset(apb->resetn_gpio); if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && - gpio_is_valid(apb->spi_en_gpio)) + gpio_is_valid(apb->spi_en_gpio)) devm_gpio_free(dev, apb->spi_en_gpio); /* Enable power to APB */ @@ -122,7 +122,7 @@ static int fw_flashing_seq(struct platform_device *pdev) int ret; if (apb->init_disabled || - apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING) + apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING) return 0; ret = regulator_enable(apb->vcore); @@ -146,7 +146,7 @@ static int fw_flashing_seq(struct platform_device *pdev) flags = GPIOF_OUT_INIT_LOW; ret = devm_gpio_request_one(dev, apb->spi_en_gpio, - flags, "apb_spi_en"); + flags, "apb_spi_en"); if (ret) { dev_err(dev, "Failed requesting SPI bus en gpio %d\n", apb->spi_en_gpio); @@ -174,11 +174,11 @@ static int standby_boot_seq(struct platform_device *pdev) * then we do not want to change the state */ if (apb->state == ARCHE_PLATFORM_STATE_STANDBY || - apb->state == ARCHE_PLATFORM_STATE_OFF) + apb->state == ARCHE_PLATFORM_STATE_OFF) return 0; if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && - gpio_is_valid(apb->spi_en_gpio)) + gpio_is_valid(apb->spi_en_gpio)) devm_gpio_free(dev, apb->spi_en_gpio); /* @@ -203,7 +203,7 @@ static void poweroff_seq(struct platform_device *pdev) return; if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && - gpio_is_valid(apb->spi_en_gpio)) + gpio_is_valid(apb->spi_en_gpio)) devm_gpio_free(dev, apb->spi_en_gpio); /* disable the clock */ @@ -251,7 +251,8 @@ void apb_ctrl_poweroff(struct device *dev) } static ssize_t state_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) + struct device_attribute *attr, + const char *buf, size_t count) { struct platform_device *pdev = to_platform_device(dev); struct arche_apb_ctrl_drvdata *apb = platform_get_drvdata(pdev); @@ -297,7 +298,7 @@ static ssize_t state_store(struct device *dev, } static ssize_t state_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, char *buf) { struct arche_apb_ctrl_drvdata *apb = dev_get_drvdata(dev); @@ -319,7 +320,7 @@ static ssize_t state_show(struct device *dev, static DEVICE_ATTR_RW(state); static int apb_ctrl_get_devtree_data(struct platform_device *pdev, - struct arche_apb_ctrl_drvdata *apb) + struct arche_apb_ctrl_drvdata *apb) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; @@ -331,10 +332,10 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev, return apb->resetn_gpio; } ret = devm_gpio_request_one(dev, apb->resetn_gpio, - GPIOF_OUT_INIT_LOW, "apb-reset"); + GPIOF_OUT_INIT_LOW, "apb-reset"); if (ret) { dev_err(dev, "Failed requesting reset gpio %d\n", - apb->resetn_gpio); + apb->resetn_gpio); return ret; } @@ -344,10 +345,10 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev, return apb->boot_ret_gpio; } ret = devm_gpio_request_one(dev, apb->boot_ret_gpio, - GPIOF_OUT_INIT_LOW, "boot retention"); + GPIOF_OUT_INIT_LOW, "boot retention"); if (ret) { dev_err(dev, "Failed requesting bootret gpio %d\n", - apb->boot_ret_gpio); + apb->boot_ret_gpio); return ret; } @@ -358,10 +359,10 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev, return apb->pwroff_gpio; } ret = devm_gpio_request_one(dev, apb->pwroff_gpio, - GPIOF_IN, "pwroff_n"); + GPIOF_IN, "pwroff_n"); if (ret) { dev_err(dev, "Failed requesting pwroff_n gpio %d\n", - apb->pwroff_gpio); + apb->pwroff_gpio); return ret; } @@ -371,10 +372,10 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev, dev_warn(dev, "failed to get clock en gpio\n"); } else if (gpio_is_valid(apb->clk_en_gpio)) { ret = devm_gpio_request_one(dev, apb->clk_en_gpio, - GPIOF_OUT_INIT_LOW, "apb_clk_en"); + GPIOF_OUT_INIT_LOW, "apb_clk_en"); if (ret) { dev_warn(dev, "Failed requesting APB clock en gpio %d\n", - apb->clk_en_gpio); + apb->clk_en_gpio); return ret; } } @@ -407,7 +408,7 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev, apb->spi_en_gpio = of_get_named_gpio(np, "spi-en-gpio", 0); if (apb->spi_en_gpio >= 0) { if (of_property_read_bool(pdev->dev.of_node, - "spi-en-active-high")) + "spi-en-active-high")) apb->spi_en_polarity_high = true; } diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c index ace4eb365c0e..83254a72a7bb 100644 --- a/drivers/staging/greybus/arche-platform.c +++ b/drivers/staging/greybus/arche-platform.c @@ -233,7 +233,7 @@ arche_platform_coldboot_seq(struct arche_platform_drvdata *arche_pdata) ret = clk_prepare_enable(arche_pdata->svc_ref_clk); if (ret) { dev_err(arche_pdata->dev, "failed to enable svc_ref_clk: %d\n", - ret); + ret); return ret; } @@ -269,7 +269,7 @@ arche_platform_fw_flashing_seq(struct arche_platform_drvdata *arche_pdata) ret = clk_prepare_enable(arche_pdata->svc_ref_clk); if (ret) { dev_err(arche_pdata->dev, "failed to enable svc_ref_clk: %d\n", - ret); + ret); return ret; } @@ -312,7 +312,8 @@ arche_platform_poweroff_seq(struct arche_platform_drvdata *arche_pdata) } static ssize_t state_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) + struct device_attribute *attr, + const char *buf, size_t count) { struct platform_device *pdev = to_platform_device(dev); struct arche_platform_drvdata *arche_pdata = platform_get_drvdata(pdev); @@ -376,7 +377,7 @@ exit: } static ssize_t state_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, char *buf) { struct arche_platform_drvdata *arche_pdata = dev_get_drvdata(dev); @@ -443,7 +444,7 @@ static int arche_platform_probe(struct platform_device *pdev) /* setup svc reset gpio */ arche_pdata->is_reset_act_hi = of_property_read_bool(np, - "svc,reset-active-high"); + "svc,reset-active-high"); arche_pdata->svc_reset_gpio = of_get_named_gpio(np, "svc,reset-gpio", 0); @@ -457,7 +458,7 @@ static int arche_platform_probe(struct platform_device *pdev) return ret; } ret = gpio_direction_output(arche_pdata->svc_reset_gpio, - arche_pdata->is_reset_act_hi); + arche_pdata->is_reset_act_hi); if (ret) { dev_err(dev, "failed to set svc-reset gpio dir:%d\n", ret); return ret; @@ -465,7 +466,8 @@ static int arche_platform_probe(struct platform_device *pdev) arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_OFF); arche_pdata->svc_sysboot_gpio = of_get_named_gpio(np, - "svc,sysboot-gpio", 0); + "svc,sysboot-gpio", + 0); if (arche_pdata->svc_sysboot_gpio < 0) { dev_err(dev, "failed to get sysboot gpio\n"); return arche_pdata->svc_sysboot_gpio; @@ -483,7 +485,8 @@ static int arche_platform_probe(struct platform_device *pdev) /* setup the clock request gpio first */ arche_pdata->svc_refclk_req = of_get_named_gpio(np, - "svc,refclk-req-gpio", 0); + "svc,refclk-req-gpio", + 0); if (arche_pdata->svc_refclk_req < 0) { dev_err(dev, "failed to get svc clock-req gpio\n"); return arche_pdata->svc_refclk_req; @@ -525,7 +528,7 @@ static int arche_platform_probe(struct platform_device *pdev) "wake detect"); if (ret) { dev_err(dev, "Failed requesting wake_detect gpio %d\n", - arche_pdata->wake_detect_gpio); + arche_pdata->wake_detect_gpio); return ret; } diff --git a/drivers/staging/greybus/audio_codec.c b/drivers/staging/greybus/audio_codec.c index fdb9e83cc34b..35acd55ca5ab 100644 --- a/drivers/staging/greybus/audio_codec.c +++ b/drivers/staging/greybus/audio_codec.c @@ -47,7 +47,7 @@ static int gbaudio_module_enable_tx(struct gbaudio_codec_info *codec, int module_state, ret = 0; u16 data_cport, i2s_port, cportid; u8 sig_bits, channels; - uint32_t format, rate; + u32 format, rate; struct gbaudio_data_connection *data; struct gbaudio_stream_params *params; @@ -182,7 +182,7 @@ static int gbaudio_module_enable_rx(struct gbaudio_codec_info *codec, int module_state, ret = 0; u16 data_cport, i2s_port, cportid; u8 sig_bits, channels; - uint32_t format, rate; + u32 format, rate; struct gbaudio_data_connection *data; struct gbaudio_stream_params *params; @@ -319,7 +319,7 @@ int gbaudio_module_update(struct gbaudio_codec_info *codec, char intf_name[NAME_SIZE], dir[NAME_SIZE]; dev_dbg(module->dev, "%s:Module update %s sequence\n", w->name, - enable ? "Enable":"Disable"); + enable ? "Enable" : "Disable"); if ((w->id != snd_soc_dapm_aif_in) && (w->id != snd_soc_dapm_aif_out)) { dev_dbg(codec->dev, "No action required for %s\n", w->name); @@ -412,7 +412,7 @@ static int gbcodec_hw_params(struct snd_pcm_substream *substream, { int ret; u8 sig_bits, channels; - uint32_t format, rate; + u32 format, rate; struct gbaudio_module_info *module; struct gbaudio_data_connection *data; struct gb_bundle *bundle; @@ -567,7 +567,7 @@ static int gbcodec_prepare(struct snd_pcm_substream *substream, if (ret) { mutex_unlock(&codec->lock); dev_err_ratelimited(dai->dev, "set_data_size failed:%d\n", - ret); + ret); return ret; } @@ -587,9 +587,8 @@ static int gbcodec_mute_stream(struct snd_soc_dai *dai, int mute, int stream) struct gbaudio_codec_info *codec = dev_get_drvdata(dai->dev); struct gbaudio_stream_params *params; - dev_dbg(dai->dev, "Mute:%d, Direction:%s\n", mute, - stream ? "CAPTURE":"PLAYBACK"); + stream ? "CAPTURE" : "PLAYBACK"); mutex_lock(&codec->lock); @@ -827,7 +826,7 @@ int gbaudio_register_module(struct gbaudio_module_info *module) module->num_dapm_widgets); if (module->controls) snd_soc_add_codec_controls(codec, module->controls, - module->num_controls); + module->num_controls); if (module->dapm_routes) snd_soc_dapm_add_routes(&codec->dapm, module->dapm_routes, module->num_dapm_routes); @@ -842,8 +841,8 @@ int gbaudio_register_module(struct gbaudio_module_info *module) * from codec->jack_list */ list_for_each_entry(jack, &codec->jack_list, list) { - if ((jack == &module->headset_jack) - || (jack == &module->button_jack)) + if ((jack == &module->headset_jack) || + (jack == &module->button_jack)) snd_device_register(codec->card->snd_card, jack->jack); } @@ -907,7 +906,6 @@ static void gbaudio_codec_clean_data_rx(struct gbaudio_data_connection *data) data->state[1] = GBAUDIO_CODEC_SHUTDOWN; } - static void gbaudio_codec_cleanup(struct gbaudio_module_info *module) { struct gbaudio_data_connection *data; @@ -923,7 +921,6 @@ static void gbaudio_codec_cleanup(struct gbaudio_module_info *module) if (cap_state > GBAUDIO_CODEC_SHUTDOWN) gbaudio_codec_clean_data_rx(data); - } } @@ -972,7 +969,7 @@ void gbaudio_unregister_module(struct gbaudio_module_info *module) dev_dbg(codec->dev, "Removing %d controls\n", module->num_controls); snd_soc_remove_codec_controls(codec, module->controls, - module->num_controls); + module->num_controls); } if (module->dapm_widgets) { dev_dbg(codec->dev, "Removing %d widgets\n", diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h index 161b37c8ef17..a1d5440552d4 100644 --- a/drivers/staging/greybus/audio_codec.h +++ b/drivers/staging/greybus/audio_codec.h @@ -53,7 +53,7 @@ enum gbaudio_codec_state { struct gbaudio_stream_params { int state; u8 sig_bits, channels; - uint32_t format, rate; + u32 format, rate; }; struct gbaudio_codec_dai { @@ -159,7 +159,7 @@ struct gbaudio_module_info { }; int gbaudio_tplg_parse_data(struct gbaudio_module_info *module, - struct gb_audio_topology *tplg_data); + struct gb_audio_topology *tplg_data); void gbaudio_tplg_release(struct gbaudio_module_info *module); int gbaudio_module_update(struct gbaudio_codec_info *codec, @@ -183,12 +183,12 @@ extern int gb_audio_gb_enable_widget(struct gb_connection *connection, extern int gb_audio_gb_disable_widget(struct gb_connection *connection, u8 widget_id); extern int gb_audio_gb_get_pcm(struct gb_connection *connection, - u16 data_cport, uint32_t *format, - uint32_t *rate, u8 *channels, + u16 data_cport, u32 *format, + u32 *rate, u8 *channels, u8 *sig_bits); extern int gb_audio_gb_set_pcm(struct gb_connection *connection, - u16 data_cport, uint32_t format, - uint32_t rate, u8 channels, + u16 data_cport, u32 format, + u32 rate, u8 channels, u8 sig_bits); extern int gb_audio_gb_set_tx_data_size(struct gb_connection *connection, u16 data_cport, u16 size); diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c index 16cc65e1472b..a5d7c53df987 100644 --- a/drivers/staging/greybus/authentication.c +++ b/drivers/staging/greybus/authentication.c @@ -202,7 +202,7 @@ static int cap_release(struct inode *inode, struct file *file) } static int cap_ioctl(struct gb_cap *cap, unsigned int cmd, - void __user *buf) + void __user *buf) { struct cap_ioc_get_endpoint_uid endpoint_uid; struct cap_ioc_get_ims_certificate *ims_cert; diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c index f13f16b63d7e..07ebfb88db9b 100644 --- a/drivers/staging/greybus/camera.c +++ b/drivers/staging/greybus/camera.c @@ -918,7 +918,7 @@ static ssize_t gb_camera_debugfs_configure_streams(struct gb_camera *gcam, /* Retrieve number of streams to configure */ token = strsep(&buf, ";"); - if (token == NULL) + if (!token) return -EINVAL; ret = kstrtouint(token, 10, &nstreams); @@ -929,7 +929,7 @@ static ssize_t gb_camera_debugfs_configure_streams(struct gb_camera *gcam, return -EINVAL; token = strsep(&buf, ";"); - if (token == NULL) + if (!token) return -EINVAL; ret = kstrtouint(token, 10, &flags); @@ -946,7 +946,7 @@ static ssize_t gb_camera_debugfs_configure_streams(struct gb_camera *gcam, /* width */ token = strsep(&buf, ";"); - if (token == NULL) { + if (!token) { ret = -EINVAL; goto done; } @@ -956,7 +956,7 @@ static ssize_t gb_camera_debugfs_configure_streams(struct gb_camera *gcam, /* height */ token = strsep(&buf, ";"); - if (token == NULL) + if (!token) goto done; ret = kstrtouint(token, 10, &stream->height); @@ -965,7 +965,7 @@ static ssize_t gb_camera_debugfs_configure_streams(struct gb_camera *gcam, /* Image format code */ token = strsep(&buf, ";"); - if (token == NULL) + if (!token) goto done; ret = kstrtouint(token, 16, &stream->format); @@ -1009,7 +1009,7 @@ static ssize_t gb_camera_debugfs_capture(struct gb_camera *gcam, /* Request id */ token = strsep(&buf, ";"); - if (token == NULL) + if (!token) return -EINVAL; ret = kstrtouint(token, 10, &request_id); if (ret < 0) @@ -1017,7 +1017,7 @@ static ssize_t gb_camera_debugfs_capture(struct gb_camera *gcam, /* Stream mask */ token = strsep(&buf, ";"); - if (token == NULL) + if (!token) return -EINVAL; ret = kstrtouint(token, 16, &streams_mask); if (ret < 0) @@ -1025,7 +1025,7 @@ static ssize_t gb_camera_debugfs_capture(struct gb_camera *gcam, /* number of frames */ token = strsep(&buf, ";"); - if (token == NULL) + if (!token) return -EINVAL; ret = kstrtouint(token, 10, &num_frames); if (ret < 0) diff --git a/drivers/staging/gs_fpgaboot/io.h b/drivers/staging/gs_fpgaboot/io.h index 5e839b1fc884..bc5d99cbda8f 100644 --- a/drivers/staging/gs_fpgaboot/io.h +++ b/drivers/staging/gs_fpgaboot/io.h @@ -7,12 +7,7 @@ * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #define GPDIR 0 diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c index cadfb96734ed..f01595593ce2 100644 --- a/drivers/staging/iio/adc/ad7192.c +++ b/drivers/staging/iio/adc/ad7192.c @@ -271,7 +271,7 @@ static int ad7192_setup(struct ad7192_state *st, if (pdata->sinc3_en) st->mode |= AD7192_MODE_SINC3; - if (pdata->refin2_en && (st->devid != ID_AD7195)) + if (pdata->refin2_en && st->devid != ID_AD7195) st->conf |= AD7192_CONF_REFSEL; if (pdata->chop_en) { diff --git a/drivers/staging/iio/cdc/ad7152.c b/drivers/staging/iio/cdc/ad7152.c index 61377ca444de..19dc896603a1 100644 --- a/drivers/staging/iio/cdc/ad7152.c +++ b/drivers/staging/iio/cdc/ad7152.c @@ -47,7 +47,7 @@ #define AD7152_STATUS_PWDN BIT(7) /* Setup Register Bit Designations (AD7152_REG_CHx_SETUP) */ -#define AD7152_SETUP_CAPDIFF (1 << 5) +#define AD7152_SETUP_CAPDIFF BIT(5) #define AD7152_SETUP_RANGE_2pF (0 << 6) #define AD7152_SETUP_RANGE_0_5pF (1 << 6) #define AD7152_SETUP_RANGE_1pF (2 << 6) @@ -55,8 +55,8 @@ #define AD7152_SETUP_RANGE(x) ((x) << 6) /* Config Register Bit Designations (AD7152_REG_CFG) */ -#define AD7152_CONF_CH2EN (1 << 3) -#define AD7152_CONF_CH1EN (1 << 4) +#define AD7152_CONF_CH2EN BIT(3) +#define AD7152_CONF_CH1EN BIT(4) #define AD7152_CONF_MODE_IDLE (0 << 0) #define AD7152_CONF_MODE_CONT_CONV (1 << 0) #define AD7152_CONF_MODE_SINGLE_CONV (2 << 0) @@ -64,7 +64,7 @@ #define AD7152_CONF_MODE_GAIN_CAL (6 << 0) /* Capdac Register Bit Designations (AD7152_REG_CAPDAC_XXX) */ -#define AD7152_CAPDAC_DACEN (1 << 7) +#define AD7152_CAPDAC_DACEN BIT(7) #define AD7152_CAPDAC_DACP(x) ((x) & 0x1F) /* CFG2 Register Bit Designations (AD7152_REG_CFG2) */ @@ -118,22 +118,23 @@ static inline ssize_t ad7152_start_calib(struct device *dev, mutex_lock(&chip->state_lock); ret = i2c_smbus_write_byte_data(chip->client, AD7152_REG_CFG, regval); - if (ret < 0) { - mutex_unlock(&chip->state_lock); - return ret; - } + if (ret < 0) + goto unlock; do { mdelay(20); ret = i2c_smbus_read_byte_data(chip->client, AD7152_REG_CFG); - if (ret < 0) { - mutex_unlock(&chip->state_lock); - return ret; - } + if (ret < 0) + goto unlock; + } while ((ret == regval) && timeout--); mutex_unlock(&chip->state_lock); return len; + +unlock: + mutex_unlock(&chip->state_lock); + return ret; } static ssize_t ad7152_start_offset_calib(struct device *dev, diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c index a124853a05f0..c4a864725376 100644 --- a/drivers/staging/iio/cdc/ad7746.c +++ b/drivers/staging/iio/cdc/ad7746.c @@ -302,23 +302,24 @@ static inline ssize_t ad7746_start_calib(struct device *dev, mutex_lock(&chip->lock); regval |= chip->config; ret = i2c_smbus_write_byte_data(chip->client, AD7746_REG_CFG, regval); - if (ret < 0) { - mutex_unlock(&chip->lock); - return ret; - } + if (ret < 0) + goto unlock; do { msleep(20); ret = i2c_smbus_read_byte_data(chip->client, AD7746_REG_CFG); - if (ret < 0) { - mutex_unlock(&chip->lock); - return ret; - } + if (ret < 0) + goto unlock; + } while ((ret == regval) && timeout--); mutex_unlock(&chip->lock); return len; + +unlock: + mutex_unlock(&chip->lock); + return ret; } static ssize_t ad7746_start_offset_calib(struct device *dev, diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c index 42ed9c015aaf..126e11530ce0 100644 --- a/drivers/staging/iio/light/tsl2x7x.c +++ b/drivers/staging/iio/light/tsl2x7x.c @@ -1441,7 +1441,8 @@ static irqreturn_t tsl2x7x_event_handler(int irq, void *private) static struct attribute *tsl2x7x_ALS_device_attrs[] = { &dev_attr_in_illuminance0_calibscale_available.attr, - &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr, + &iio_const_attr_in_illuminance0_integration_time_available + .dev_attr.attr, &dev_attr_in_illuminance0_target_input.attr, &dev_attr_in_illuminance0_calibrate.attr, &dev_attr_in_illuminance0_lux_table.attr, @@ -1455,7 +1456,8 @@ static struct attribute *tsl2x7x_PRX_device_attrs[] = { static struct attribute *tsl2x7x_ALSPRX_device_attrs[] = { &dev_attr_in_illuminance0_calibscale_available.attr, - &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr, + &iio_const_attr_in_illuminance0_integration_time_available + .dev_attr.attr, &dev_attr_in_illuminance0_target_input.attr, &dev_attr_in_illuminance0_calibrate.attr, &dev_attr_in_illuminance0_lux_table.attr, @@ -1471,7 +1473,8 @@ static struct attribute *tsl2x7x_PRX2_device_attrs[] = { static struct attribute *tsl2x7x_ALSPRX2_device_attrs[] = { &dev_attr_in_illuminance0_calibscale_available.attr, - &iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr, + &iio_const_attr_in_illuminance0_integration_time_available + .dev_attr.attr, &dev_attr_in_illuminance0_target_input.attr, &dev_attr_in_illuminance0_calibrate.attr, &dev_attr_in_illuminance0_lux_table.attr, diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c index d80dcf82eba9..71f11d7472c0 100644 --- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c +++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c @@ -78,9 +78,9 @@ static int iio_bfin_tmr_set_state(struct iio_trigger *trig, bool state) return 0; } -static ssize_t iio_bfin_tmr_frequency_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) +static ssize_t frequency_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) { struct iio_trigger *trig = to_iio_trigger(dev); struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig); @@ -116,9 +116,9 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev, return count; } -static ssize_t iio_bfin_tmr_frequency_show(struct device *dev, - struct device_attribute *attr, - char *buf) +static ssize_t frequency_show(struct device *dev, + struct device_attribute *attr, + char *buf) { struct iio_trigger *trig = to_iio_trigger(dev); struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig); @@ -133,8 +133,7 @@ static ssize_t iio_bfin_tmr_frequency_show(struct device *dev, return sprintf(buf, "%lu\n", val); } -static DEVICE_ATTR(frequency, 0644, iio_bfin_tmr_frequency_show, - iio_bfin_tmr_frequency_store); +static DEVICE_ATTR_RW(frequency); static struct attribute *iio_bfin_tmr_trigger_attrs[] = { &dev_attr_frequency.attr, @@ -187,9 +186,9 @@ static int iio_bfin_tmr_trigger_probe(struct platform_device *pdev) return -ENOMEM; st->irq = platform_get_irq(pdev, 0); - if (!st->irq) { + if (st->irq < 0) { dev_err(&pdev->dev, "No IRQs specified"); - return -ENODEV; + return st->irq; } ret = iio_bfin_tmr_get_number(st->irq); diff --git a/net/ipx/Kconfig b/drivers/staging/ipx/Kconfig index e9ad0062fbb6..cdff083d0ee6 100644 --- a/net/ipx/Kconfig +++ b/drivers/staging/ipx/Kconfig @@ -3,6 +3,7 @@ # config IPX tristate "The IPX protocol" + depends on NET select LLC ---help--- This is support for the Novell networking protocol, IPX, commonly diff --git a/net/ipx/Makefile b/drivers/staging/ipx/Makefile index 440fafa9fd07..440fafa9fd07 100644 --- a/net/ipx/Makefile +++ b/drivers/staging/ipx/Makefile diff --git a/drivers/staging/ipx/TODO b/drivers/staging/ipx/TODO new file mode 100644 index 000000000000..80db5d968264 --- /dev/null +++ b/drivers/staging/ipx/TODO @@ -0,0 +1,4 @@ +The ipx code will be removed soon from the kernel tree as it is old and +obsolete and broken. + +Don't worry about fixing up anything here, it's not needed. diff --git a/net/ipx/af_ipx.c b/drivers/staging/ipx/af_ipx.c index d21a9d128d3e..d21a9d128d3e 100644 --- a/net/ipx/af_ipx.c +++ b/drivers/staging/ipx/af_ipx.c diff --git a/net/ipx/ipx_proc.c b/drivers/staging/ipx/ipx_proc.c index b9232e4e2ed4..b9232e4e2ed4 100644 --- a/net/ipx/ipx_proc.c +++ b/drivers/staging/ipx/ipx_proc.c diff --git a/net/ipx/ipx_route.c b/drivers/staging/ipx/ipx_route.c index 3cf93aa9f284..3cf93aa9f284 100644 --- a/net/ipx/ipx_route.c +++ b/drivers/staging/ipx/ipx_route.c diff --git a/net/ipx/pe2.c b/drivers/staging/ipx/pe2.c index ba7d4214bbff..ba7d4214bbff 100644 --- a/net/ipx/pe2.c +++ b/drivers/staging/ipx/pe2.c diff --git a/net/ipx/sysctl_net_ipx.c b/drivers/staging/ipx/sysctl_net_ipx.c index c3eef457db88..c3eef457db88 100644 --- a/net/ipx/sysctl_net_ipx.c +++ b/drivers/staging/ipx/sysctl_net_ipx.c diff --git a/drivers/staging/irda/drivers/pxaficp_ir.c b/drivers/staging/irda/drivers/pxaficp_ir.c index 1dba16bc7f8d..2ea00a6531f9 100644 --- a/drivers/staging/irda/drivers/pxaficp_ir.c +++ b/drivers/staging/irda/drivers/pxaficp_ir.c @@ -12,7 +12,6 @@ * Infra-red driver (SIR/FIR) for the PXA2xx embedded microprocessor * */ -#include <linux/dma-mapping.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/netdevice.h> diff --git a/drivers/staging/irda/net/irlmp.c b/drivers/staging/irda/net/irlmp.c index 34355061ab0b..7af618fb66c0 100644 --- a/drivers/staging/irda/net/irlmp.c +++ b/drivers/staging/irda/net/irlmp.c @@ -1668,7 +1668,7 @@ static int irlmp_slsap_inuse(__u8 slsap_sel) IRDA_ASSERT(self->magic == LMP_LSAP_MAGIC, goto errlsap;); - if ((self->slsap_sel == slsap_sel)) { + if (self->slsap_sel == slsap_sel) { pr_debug("Source LSAP selector=%02x in use\n", self->slsap_sel); goto errlsap; @@ -1693,7 +1693,7 @@ static int irlmp_slsap_inuse(__u8 slsap_sel) self = (struct lsap_cb *) hashbin_get_first(irlmp->unconnected_lsaps); while (self != NULL) { IRDA_ASSERT(self->magic == LMP_LSAP_MAGIC, goto erruncon;); - if ((self->slsap_sel == slsap_sel)) { + if (self->slsap_sel == slsap_sel) { pr_debug("Source LSAP selector=%02x in use (unconnected)\n", self->slsap_sel); goto erruncon; diff --git a/drivers/staging/ks7010/ks_wlan_net.c b/drivers/staging/ks7010/ks_wlan_net.c index 880085e2f24a..e48c55769c94 100644 --- a/drivers/staging/ks7010/ks_wlan_net.c +++ b/drivers/staging/ks7010/ks_wlan_net.c @@ -2990,7 +2990,7 @@ int ks_wlan_net_stop(struct net_device *dev) /** * is_connect_status() - return true if status is 'connected' * @status: high bit is used as FORCE_DISCONNECT, low bits used for - * connect status. + * connect status. */ bool is_connect_status(u32 status) { @@ -3000,7 +3000,7 @@ bool is_connect_status(u32 status) /** * is_disconnect_status() - return true if status is 'disconnected' * @status: high bit is used as FORCE_DISCONNECT, low bits used for - * disconnect status. + * disconnect status. */ bool is_disconnect_status(u32 status) { diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h index 6ad8867e5451..ca3472cc952f 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h @@ -45,7 +45,6 @@ #include <linux/libcfs/libcfs_prim.h> #include <linux/libcfs/libcfs_time.h> #include <linux/libcfs/libcfs_string.h> -#include <linux/libcfs/libcfs_workitem.h> #include <linux/libcfs/libcfs_hash.h> #include <linux/libcfs/libcfs_fail.h> #include <linux/libcfs/curproc.h> @@ -74,16 +73,6 @@ sigset_t cfs_block_sigsinv(unsigned long sigs); void cfs_restore_sigs(sigset_t sigset); void cfs_clear_sigpending(void); -/* - * Random number handling - */ - -/* returns a random 32-bit integer */ -unsigned int cfs_rand(void); -/* seed the generator */ -void cfs_srand(unsigned int seed1, unsigned int seed2); -void cfs_get_random_bytes(void *buf, int size); - struct libcfs_ioctl_handler { struct list_head item; int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr); @@ -126,7 +115,7 @@ extern struct miscdevice libcfs_dev; */ extern char lnet_debug_log_upcall[1024]; -extern struct cfs_wi_sched *cfs_sched_rehash; +extern struct workqueue_struct *cfs_rehash_wq; struct lnet_debugfs_symlink_def { char *name; diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h index 6d132f941281..61bce77fddd6 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h @@ -79,7 +79,7 @@ /** * return cpumask of CPU partition \a cpt */ -cpumask_t *cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt); +cpumask_var_t *cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt); /** * print string information of cpt-table */ @@ -96,7 +96,7 @@ struct cfs_cpt_table { u64 ctb_version; }; -static inline cpumask_t * +static inline cpumask_var_t * cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt) { return NULL; diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h index 5a27220cc608..0506f1d45757 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h @@ -248,7 +248,7 @@ struct cfs_hash { /** # of iterators (caller of cfs_hash_for_each_*) */ u32 hs_iterators; /** rehash workitem */ - struct cfs_workitem hs_rehash_wi; + struct work_struct hs_rehash_work; /** refcount on this hash table */ atomic_t hs_refcount; /** rehash buckets-table */ @@ -265,7 +265,7 @@ struct cfs_hash { /** bits when we found the max depth */ unsigned int hs_dep_bits; /** workitem to output max depth */ - struct cfs_workitem hs_dep_wi; + struct work_struct hs_dep_work; #endif /** name of htable */ char hs_name[0]; @@ -738,7 +738,7 @@ u64 cfs_hash_size_get(struct cfs_hash *hs); */ void cfs_hash_rehash_cancel_locked(struct cfs_hash *hs); void cfs_hash_rehash_cancel(struct cfs_hash *hs); -int cfs_hash_rehash(struct cfs_hash *hs, int do_rehash); +void cfs_hash_rehash(struct cfs_hash *hs, int do_rehash); void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key, void *new_key, struct hlist_node *hnode); diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h index 2f4ff595fac9..491d5971d199 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h @@ -43,13 +43,6 @@ # define DEBUG_SUBSYSTEM S_UNDEFINED #endif -/* - * When this is on, LASSERT macro includes check for assignment used instead - * of equality check, but doesn't have unlikely(). Turn this on from time to - * time to make test-builds. This shouldn't be on for production release. - */ -#define LASSERT_CHECKED (0) - #define LASSERTF(cond, fmt, ...) \ do { \ if (unlikely(!(cond))) { \ @@ -74,8 +67,6 @@ do { \ # define LINVRNT(exp) ((void)sizeof !!(exp)) #endif -#define KLASSERT(e) LASSERT(e) - void __noreturn lbug_with_loc(struct libcfs_debug_msg_data *msg); #define LBUG() \ @@ -84,74 +75,24 @@ do { \ lbug_with_loc(&msgdata); \ } while (0) -#ifndef LIBCFS_VMALLOC_SIZE -#define LIBCFS_VMALLOC_SIZE (2 << PAGE_SHIFT) /* 2 pages */ -#endif - -#define LIBCFS_ALLOC_PRE(size, mask) \ - LASSERT(!in_interrupt() || ((size) <= LIBCFS_VMALLOC_SIZE && \ - !gfpflags_allow_blocking(mask))) - -#define LIBCFS_ALLOC_POST(ptr, size) \ -do { \ - if (unlikely(!(ptr))) { \ - CERROR("LNET: out of memory at %s:%d (tried to alloc '" \ - #ptr "' = %d)\n", __FILE__, __LINE__, (int)(size)); \ - } else { \ - memset((ptr), 0, (size)); \ - } \ -} while (0) - -/** - * allocate memory with GFP flags @mask - */ -#define LIBCFS_ALLOC_GFP(ptr, size, mask) \ -do { \ - LIBCFS_ALLOC_PRE((size), (mask)); \ - (ptr) = (size) <= LIBCFS_VMALLOC_SIZE ? \ - kmalloc((size), (mask)) : vmalloc(size); \ - LIBCFS_ALLOC_POST((ptr), (size)); \ -} while (0) - -/** - * default allocator - */ -#define LIBCFS_ALLOC(ptr, size) \ - LIBCFS_ALLOC_GFP(ptr, size, GFP_NOFS) - -/** - * non-sleeping allocator +/* + * Use #define rather than inline, as lnet_cpt_table() might + * not be defined yet */ -#define LIBCFS_ALLOC_ATOMIC(ptr, size) \ - LIBCFS_ALLOC_GFP(ptr, size, GFP_ATOMIC) +#define kmalloc_cpt(size, flags, cpt) \ + kmalloc_node(size, flags, cfs_cpt_spread_node(lnet_cpt_table(), cpt)) -/** - * allocate memory for specified CPU partition - * \a cptab != NULL, \a cpt is CPU partition id of \a cptab - * \a cptab == NULL, \a cpt is HW NUMA node id - */ -#define LIBCFS_CPT_ALLOC_GFP(ptr, cptab, cpt, size, mask) \ -do { \ - LIBCFS_ALLOC_PRE((size), (mask)); \ - (ptr) = (size) <= LIBCFS_VMALLOC_SIZE ? \ - kmalloc_node((size), (mask), cfs_cpt_spread_node(cptab, cpt)) :\ - vmalloc_node(size, cfs_cpt_spread_node(cptab, cpt)); \ - LIBCFS_ALLOC_POST((ptr), (size)); \ -} while (0) +#define kzalloc_cpt(size, flags, cpt) \ + kmalloc_node(size, flags | __GFP_ZERO, \ + cfs_cpt_spread_node(lnet_cpt_table(), cpt)) -/** default numa allocator */ -#define LIBCFS_CPT_ALLOC(ptr, cptab, cpt, size) \ - LIBCFS_CPT_ALLOC_GFP(ptr, cptab, cpt, size, GFP_NOFS) +#define kvmalloc_cpt(size, flags, cpt) \ + kvmalloc_node(size, flags, \ + cfs_cpt_spread_node(lnet_cpt_table(), cpt)) -#define LIBCFS_FREE(ptr, size) \ -do { \ - if (unlikely(!(ptr))) { \ - CERROR("LIBCFS: free NULL '" #ptr "' (%d bytes) at " \ - "%s:%d\n", (int)(size), __FILE__, __LINE__); \ - break; \ - } \ - kvfree(ptr); \ -} while (0) +#define kvzalloc_cpt(size, flags, cpt) \ + kvmalloc_node(size, flags | __GFP_ZERO, \ + cfs_cpt_spread_node(lnet_cpt_table(), cpt)) /******************************************************************************/ @@ -242,59 +183,18 @@ do { \ #define LASSERT_ATOMIC_ZERO(a) LASSERT_ATOMIC_EQ(a, 0) #define LASSERT_ATOMIC_POS(a) LASSERT_ATOMIC_GT(a, 0) -#define CFS_ALLOC_PTR(ptr) LIBCFS_ALLOC(ptr, sizeof(*(ptr))) -#define CFS_FREE_PTR(ptr) LIBCFS_FREE(ptr, sizeof(*(ptr))) - -/* max value for numeric network address */ -#define MAX_NUMERIC_VALUE 0xffffffff - /* implication */ #define ergo(a, b) (!(a) || (b)) /* logical equivalence */ #define equi(a, b) (!!(a) == !!(b)) -/* -------------------------------------------------------------------- - * Light-weight trace - * Support for temporary event tracing with minimal Heisenberg effect. - * -------------------------------------------------------------------- - */ - -#define MKSTR(ptr) ((ptr)) ? (ptr) : "" - -static inline size_t cfs_size_round4(int val) -{ - return (val + 3) & (~0x3); -} - #ifndef HAVE_CFS_SIZE_ROUND static inline size_t cfs_size_round(int val) { - return (val + 7) & (~0x7); + return round_up(val, 8); } #define HAVE_CFS_SIZE_ROUND #endif -static inline size_t cfs_size_round16(int val) -{ - return (val + 0xf) & (~0xf); -} - -static inline size_t cfs_size_round32(int val) -{ - return (val + 0x1f) & (~0x1f); -} - -static inline size_t cfs_size_round0(int val) -{ - if (!val) - return 0; - return (val + 1 + 7) & (~0x7); -} - -static inline size_t cfs_round_strlen(char *fset) -{ - return cfs_size_round((int)strlen(fset) + 1); -} - #endif diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h index 1191764c431a..66463477074a 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h @@ -73,7 +73,6 @@ struct cfs_expr_list { struct list_head el_exprs; }; -char *cfs_trimwhite(char *str); int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res); int cfs_str2num_check(char *str, int nob, unsigned int *num, unsigned int min, unsigned int max); @@ -86,11 +85,11 @@ static inline void cfs_expr_list_values_free(u32 *values, int num) { /* - * This array is allocated by LIBCFS_ALLOC(), so it shouldn't be freed + * This array is allocated by kvalloc(), so it shouldn't be freed * by OBD_FREE() if it's called by module other than libcfs & LNet, * otherwise we will see fake memory leak */ - LIBCFS_FREE(values, num * sizeof(values[0])); + kvfree(values); } void cfs_expr_list_free(struct cfs_expr_list *expr_list); diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h deleted file mode 100644 index fc780f608e57..000000000000 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h +++ /dev/null @@ -1,107 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * libcfs/include/libcfs/libcfs_workitem.h - * - * Author: Isaac Huang <he.h.huang@oracle.com> - * Liang Zhen <zhen.liang@sun.com> - * - * A workitems is deferred work with these semantics: - * - a workitem always runs in thread context. - * - a workitem can be concurrent with other workitems but is strictly - * serialized with respect to itself. - * - no CPU affinity, a workitem does not necessarily run on the same CPU - * that schedules it. However, this might change in the future. - * - if a workitem is scheduled again before it has a chance to run, it - * runs only once. - * - if a workitem is scheduled while it runs, it runs again after it - * completes; this ensures that events occurring while other events are - * being processed receive due attention. This behavior also allows a - * workitem to reschedule itself. - * - * Usage notes: - * - a workitem can sleep but it should be aware of how that sleep might - * affect others. - * - a workitem runs inside a kernel thread so there's no user space to access. - * - do not use a workitem if the scheduling latency can't be tolerated. - * - * When wi_action returns non-zero, it means the workitem has either been - * freed or reused and workitem scheduler won't touch it any more. - */ - -#ifndef __LIBCFS_WORKITEM_H__ -#define __LIBCFS_WORKITEM_H__ - -struct cfs_wi_sched; - -void cfs_wi_sched_destroy(struct cfs_wi_sched *sched); -int cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab, int cpt, - int nthrs, struct cfs_wi_sched **sched_pp); - -struct cfs_workitem; - -typedef int (*cfs_wi_action_t) (struct cfs_workitem *); -struct cfs_workitem { - /** chain on runq or rerunq */ - struct list_head wi_list; - /** working function */ - cfs_wi_action_t wi_action; - /** arg for working function */ - void *wi_data; - /** in running */ - unsigned short wi_running:1; - /** scheduled */ - unsigned short wi_scheduled:1; -}; - -static inline void -cfs_wi_init(struct cfs_workitem *wi, void *data, cfs_wi_action_t action) -{ - INIT_LIST_HEAD(&wi->wi_list); - - wi->wi_running = 0; - wi->wi_scheduled = 0; - wi->wi_data = data; - wi->wi_action = action; -} - -void cfs_wi_schedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi); -int cfs_wi_deschedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi); -void cfs_wi_exit(struct cfs_wi_sched *sched, struct cfs_workitem *wi); - -int cfs_wi_startup(void); -void cfs_wi_shutdown(void); - -/** # workitem scheduler loops before reschedule */ -#define CFS_WI_RESCHED 128 - -#endif /* __LIBCFS_WORKITEM_H__ */ diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h index 854c84358ab4..6035376f2830 100644 --- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h +++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h @@ -49,7 +49,7 @@ /** virtual processing unit */ struct cfs_cpu_partition { /* CPUs mask for this partition */ - cpumask_t *cpt_cpumask; + cpumask_var_t cpt_cpumask; /* nodes mask for this partition */ nodemask_t *cpt_nodemask; /* spread rotor for NUMA allocator */ @@ -69,7 +69,7 @@ struct cfs_cpt_table { /* shadow HW CPU to CPU partition ID */ int *ctb_cpu2cpt; /* all cpus in this partition table */ - cpumask_t *ctb_cpumask; + cpumask_var_t ctb_cpumask; /* all nodes in this partition table */ nodemask_t *ctb_nodemask; }; diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h index c1626726fa05..df4c72507a15 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h @@ -181,21 +181,6 @@ lnet_net_lock_current(void) #define MAX_PORTALS 64 -static inline struct lnet_eq * -lnet_eq_alloc(void) -{ - struct lnet_eq *eq; - - LIBCFS_ALLOC(eq, sizeof(*eq)); - return eq; -} - -static inline void -lnet_eq_free(struct lnet_eq *eq) -{ - LIBCFS_FREE(eq, sizeof(*eq)); -} - static inline struct lnet_libmd * lnet_md_alloc(struct lnet_md *umd) { @@ -211,7 +196,7 @@ lnet_md_alloc(struct lnet_md *umd) size = offsetof(struct lnet_libmd, md_iov.iov[niov]); } - LIBCFS_ALLOC(md, size); + md = kzalloc(size, GFP_NOFS); if (md) { /* Set here in case of early free */ @@ -223,52 +208,6 @@ lnet_md_alloc(struct lnet_md *umd) return md; } -static inline void -lnet_md_free(struct lnet_libmd *md) -{ - unsigned int size; - - if (md->md_options & LNET_MD_KIOV) - size = offsetof(struct lnet_libmd, md_iov.kiov[md->md_niov]); - else - size = offsetof(struct lnet_libmd, md_iov.iov[md->md_niov]); - - LIBCFS_FREE(md, size); -} - -static inline struct lnet_me * -lnet_me_alloc(void) -{ - struct lnet_me *me; - - LIBCFS_ALLOC(me, sizeof(*me)); - return me; -} - -static inline void -lnet_me_free(struct lnet_me *me) -{ - LIBCFS_FREE(me, sizeof(*me)); -} - -static inline struct lnet_msg * -lnet_msg_alloc(void) -{ - struct lnet_msg *msg; - - LIBCFS_ALLOC(msg, sizeof(*msg)); - - /* no need to zero, LIBCFS_ALLOC does for us */ - return msg; -} - -static inline void -lnet_msg_free(struct lnet_msg *msg) -{ - LASSERT(!msg->msg_onactivelist); - LIBCFS_FREE(msg, sizeof(*msg)); -} - struct lnet_libhandle *lnet_res_lh_lookup(struct lnet_res_container *rec, __u64 cookie); void lnet_res_lh_initialize(struct lnet_res_container *rec, diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c index 8024843521ab..ec84edfda271 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c @@ -325,7 +325,7 @@ int kiblnd_create_peer(struct lnet_ni *ni, struct kib_peer **peerp, LASSERT(net); LASSERT(nid != LNET_NID_ANY); - LIBCFS_CPT_ALLOC(peer, lnet_cpt_table(), cpt, sizeof(*peer)); + peer = kzalloc_cpt(sizeof(*peer), GFP_NOFS, cpt); if (!peer) { CERROR("Cannot allocate peer\n"); return -ENOMEM; @@ -367,7 +367,7 @@ void kiblnd_destroy_peer(struct kib_peer *peer) LASSERT(kiblnd_peer_idle(peer)); LASSERT(list_empty(&peer->ibp_tx_queue)); - LIBCFS_FREE(peer, sizeof(*peer)); + kfree(peer); /* * NB a peer's connections keep a reference on their peer until @@ -596,7 +596,7 @@ static void kiblnd_setup_mtu_locked(struct rdma_cm_id *cmid) static int kiblnd_get_completion_vector(struct kib_conn *conn, int cpt) { - cpumask_t *mask; + cpumask_var_t *mask; int vectors; int off; int i; @@ -611,8 +611,8 @@ static int kiblnd_get_completion_vector(struct kib_conn *conn, int cpt) return 0; /* hash NID to CPU id in this partition... */ - off = do_div(nid, cpumask_weight(mask)); - for_each_cpu(i, mask) { + off = do_div(nid, cpumask_weight(*mask)); + for_each_cpu(i, *mask) { if (!off--) return i % vectors; } @@ -656,15 +656,14 @@ struct kib_conn *kiblnd_create_conn(struct kib_peer *peer, struct rdma_cm_id *cm LASSERT(sched->ibs_nthreads > 0); - LIBCFS_CPT_ALLOC(init_qp_attr, lnet_cpt_table(), cpt, - sizeof(*init_qp_attr)); + init_qp_attr = kzalloc_cpt(sizeof(*init_qp_attr), GFP_NOFS, cpt); if (!init_qp_attr) { CERROR("Can't allocate qp_attr for %s\n", libcfs_nid2str(peer->ibp_nid)); goto failed_0; } - LIBCFS_CPT_ALLOC(conn, lnet_cpt_table(), cpt, sizeof(*conn)); + conn = kzalloc_cpt(sizeof(*conn), GFP_NOFS, cpt); if (!conn) { CERROR("Can't allocate connection for %s\n", libcfs_nid2str(peer->ibp_nid)); @@ -687,8 +686,7 @@ struct kib_conn *kiblnd_create_conn(struct kib_peer *peer, struct rdma_cm_id *cm INIT_LIST_HEAD(&conn->ibc_active_txs); spin_lock_init(&conn->ibc_lock); - LIBCFS_CPT_ALLOC(conn->ibc_connvars, lnet_cpt_table(), cpt, - sizeof(*conn->ibc_connvars)); + conn->ibc_connvars = kzalloc_cpt(sizeof(*conn->ibc_connvars), GFP_NOFS, cpt); if (!conn->ibc_connvars) { CERROR("Can't allocate in-progress connection state\n"); goto failed_2; @@ -722,8 +720,8 @@ struct kib_conn *kiblnd_create_conn(struct kib_peer *peer, struct rdma_cm_id *cm write_unlock_irqrestore(glock, flags); - LIBCFS_CPT_ALLOC(conn->ibc_rxs, lnet_cpt_table(), cpt, - IBLND_RX_MSGS(conn) * sizeof(struct kib_rx)); + conn->ibc_rxs = kzalloc_cpt(IBLND_RX_MSGS(conn) * sizeof(struct kib_rx), + GFP_NOFS, cpt); if (!conn->ibc_rxs) { CERROR("Cannot allocate RX buffers\n"); goto failed_2; @@ -776,7 +774,7 @@ struct kib_conn *kiblnd_create_conn(struct kib_peer *peer, struct rdma_cm_id *cm goto failed_2; } - LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr)); + kfree(init_qp_attr); /* 1 ref for caller and each rxmsg */ atomic_set(&conn->ibc_refcount, 1 + IBLND_RX_MSGS(conn)); @@ -826,14 +824,15 @@ struct kib_conn *kiblnd_create_conn(struct kib_peer *peer, struct rdma_cm_id *cm return conn; failed_2: - kiblnd_destroy_conn(conn, true); + kiblnd_destroy_conn(conn); + kfree(conn); failed_1: - LIBCFS_FREE(init_qp_attr, sizeof(*init_qp_attr)); + kfree(init_qp_attr); failed_0: return NULL; } -void kiblnd_destroy_conn(struct kib_conn *conn, bool free_conn) +void kiblnd_destroy_conn(struct kib_conn *conn) { struct rdma_cm_id *cmid = conn->ibc_cmid; struct kib_peer *peer = conn->ibc_peer; @@ -877,13 +876,8 @@ void kiblnd_destroy_conn(struct kib_conn *conn, bool free_conn) if (conn->ibc_rx_pages) kiblnd_unmap_rx_descs(conn); - if (conn->ibc_rxs) { - LIBCFS_FREE(conn->ibc_rxs, - IBLND_RX_MSGS(conn) * sizeof(struct kib_rx)); - } - - if (conn->ibc_connvars) - LIBCFS_FREE(conn->ibc_connvars, sizeof(*conn->ibc_connvars)); + kfree(conn->ibc_rxs); + kfree(conn->ibc_connvars); if (conn->ibc_hdev) kiblnd_hdev_decref(conn->ibc_hdev); @@ -896,8 +890,6 @@ void kiblnd_destroy_conn(struct kib_conn *conn, bool free_conn) rdma_destroy_id(cmid); atomic_dec(&net->ibn_nconns); } - - LIBCFS_FREE(conn, sizeof(*conn)); } int kiblnd_close_peer_conns_locked(struct kib_peer *peer, int why) @@ -1089,7 +1081,7 @@ static void kiblnd_free_pages(struct kib_pages *p) __free_page(p->ibp_pages[i]); } - LIBCFS_FREE(p, offsetof(struct kib_pages, ibp_pages[npages])); + kfree(p); } int kiblnd_alloc_pages(struct kib_pages **pp, int cpt, int npages) @@ -1097,14 +1089,13 @@ int kiblnd_alloc_pages(struct kib_pages **pp, int cpt, int npages) struct kib_pages *p; int i; - LIBCFS_CPT_ALLOC(p, lnet_cpt_table(), cpt, - offsetof(struct kib_pages, ibp_pages[npages])); + p = kzalloc_cpt(offsetof(struct kib_pages, ibp_pages[npages]), + GFP_NOFS, cpt); if (!p) { CERROR("Can't allocate descriptor for %d pages\n", npages); return -ENOMEM; } - memset(p, 0, offsetof(struct kib_pages, ibp_pages[npages])); p->ibp_npages = npages; for (i = 0; i < npages; i++) { @@ -1299,7 +1290,7 @@ static void kiblnd_destroy_fmr_pool(struct kib_fmr_pool *fpo) frd_list) { list_del(&frd->frd_list); ib_dereg_mr(frd->frd_mr); - LIBCFS_FREE(frd, sizeof(*frd)); + kfree(frd); i++; } if (i < fpo->fast_reg.fpo_pool_size) @@ -1310,7 +1301,7 @@ static void kiblnd_destroy_fmr_pool(struct kib_fmr_pool *fpo) if (fpo->fpo_hdev) kiblnd_hdev_decref(fpo->fpo_hdev); - LIBCFS_FREE(fpo, sizeof(*fpo)); + kfree(fpo); } static void kiblnd_destroy_fmr_pool_list(struct list_head *head) @@ -1376,8 +1367,7 @@ static int kiblnd_alloc_freg_pool(struct kib_fmr_poolset *fps, struct kib_fmr_po INIT_LIST_HEAD(&fpo->fast_reg.fpo_pool_list); fpo->fast_reg.fpo_pool_size = 0; for (i = 0; i < fps->fps_pool_size; i++) { - LIBCFS_CPT_ALLOC(frd, lnet_cpt_table(), fps->fps_cpt, - sizeof(*frd)); + frd = kzalloc_cpt(sizeof(*frd), GFP_NOFS, fps->fps_cpt); if (!frd) { CERROR("Failed to allocate a new fast_reg descriptor\n"); rc = -ENOMEM; @@ -1405,14 +1395,14 @@ static int kiblnd_alloc_freg_pool(struct kib_fmr_poolset *fps, struct kib_fmr_po out_middle: if (frd->frd_mr) ib_dereg_mr(frd->frd_mr); - LIBCFS_FREE(frd, sizeof(*frd)); + kfree(frd); out: list_for_each_entry_safe(frd, tmp, &fpo->fast_reg.fpo_pool_list, frd_list) { list_del(&frd->frd_list); ib_dereg_mr(frd->frd_mr); - LIBCFS_FREE(frd, sizeof(*frd)); + kfree(frd); } return rc; @@ -1426,7 +1416,7 @@ static int kiblnd_create_fmr_pool(struct kib_fmr_poolset *fps, struct kib_fmr_pool *fpo; int rc; - LIBCFS_CPT_ALLOC(fpo, lnet_cpt_table(), fps->fps_cpt, sizeof(*fpo)); + fpo = kzalloc_cpt(sizeof(*fpo), GFP_NOFS, fps->fps_cpt); if (!fpo) return -ENOMEM; @@ -1464,7 +1454,7 @@ static int kiblnd_create_fmr_pool(struct kib_fmr_poolset *fps, out_fpo: kiblnd_hdev_decref(fpo->fpo_hdev); - LIBCFS_FREE(fpo, sizeof(*fpo)); + kfree(fpo); return rc; } @@ -1985,33 +1975,17 @@ static void kiblnd_destroy_tx_pool(struct kib_pool *pool) struct kib_tx *tx = &tpo->tpo_tx_descs[i]; list_del(&tx->tx_list); - if (tx->tx_pages) - LIBCFS_FREE(tx->tx_pages, - LNET_MAX_IOV * - sizeof(*tx->tx_pages)); - if (tx->tx_frags) - LIBCFS_FREE(tx->tx_frags, - (1 + IBLND_MAX_RDMA_FRAGS) * - sizeof(*tx->tx_frags)); - if (tx->tx_wrq) - LIBCFS_FREE(tx->tx_wrq, - (1 + IBLND_MAX_RDMA_FRAGS) * - sizeof(*tx->tx_wrq)); - if (tx->tx_sge) - LIBCFS_FREE(tx->tx_sge, - (1 + IBLND_MAX_RDMA_FRAGS) * - sizeof(*tx->tx_sge)); - if (tx->tx_rd) - LIBCFS_FREE(tx->tx_rd, - offsetof(struct kib_rdma_desc, - rd_frags[IBLND_MAX_RDMA_FRAGS])); - } - - LIBCFS_FREE(tpo->tpo_tx_descs, - pool->po_size * sizeof(struct kib_tx)); + kfree(tx->tx_pages); + kfree(tx->tx_frags); + kfree(tx->tx_wrq); + kfree(tx->tx_sge); + kfree(tx->tx_rd); + } + + kfree(tpo->tpo_tx_descs); out: kiblnd_fini_pool(pool); - LIBCFS_FREE(tpo, sizeof(*tpo)); + kfree(tpo); } static int kiblnd_tx_pool_size(int ncpts) @@ -2029,7 +2003,7 @@ static int kiblnd_create_tx_pool(struct kib_poolset *ps, int size, struct kib_pool *pool; struct kib_tx_pool *tpo; - LIBCFS_CPT_ALLOC(tpo, lnet_cpt_table(), ps->ps_cpt, sizeof(*tpo)); + tpo = kzalloc_cpt(sizeof(*tpo), GFP_NOFS, ps->ps_cpt); if (!tpo) { CERROR("Failed to allocate TX pool\n"); return -ENOMEM; @@ -2043,12 +2017,12 @@ static int kiblnd_create_tx_pool(struct kib_poolset *ps, int size, npg = DIV_ROUND_UP(size * IBLND_MSG_SIZE, PAGE_SIZE); if (kiblnd_alloc_pages(&tpo->tpo_tx_pages, ps->ps_cpt, npg)) { CERROR("Can't allocate tx pages: %d\n", npg); - LIBCFS_FREE(tpo, sizeof(*tpo)); + kfree(tpo); return -ENOMEM; } - LIBCFS_CPT_ALLOC(tpo->tpo_tx_descs, lnet_cpt_table(), ps->ps_cpt, - size * sizeof(struct kib_tx)); + tpo->tpo_tx_descs = kzalloc_cpt(size * sizeof(struct kib_tx), + GFP_NOFS, ps->ps_cpt); if (!tpo->tpo_tx_descs) { CERROR("Can't allocate %d tx descriptors\n", size); ps->ps_pool_destroy(pool); @@ -2062,36 +2036,35 @@ static int kiblnd_create_tx_pool(struct kib_poolset *ps, int size, tx->tx_pool = tpo; if (ps->ps_net->ibn_fmr_ps) { - LIBCFS_CPT_ALLOC(tx->tx_pages, - lnet_cpt_table(), ps->ps_cpt, - LNET_MAX_IOV * sizeof(*tx->tx_pages)); + tx->tx_pages = kzalloc_cpt(LNET_MAX_IOV * sizeof(*tx->tx_pages), + GFP_NOFS, ps->ps_cpt); if (!tx->tx_pages) break; } - LIBCFS_CPT_ALLOC(tx->tx_frags, lnet_cpt_table(), ps->ps_cpt, - (1 + IBLND_MAX_RDMA_FRAGS) * - sizeof(*tx->tx_frags)); + tx->tx_frags = kzalloc_cpt((1 + IBLND_MAX_RDMA_FRAGS) * + sizeof(*tx->tx_frags), + GFP_NOFS, ps->ps_cpt); if (!tx->tx_frags) break; sg_init_table(tx->tx_frags, IBLND_MAX_RDMA_FRAGS + 1); - LIBCFS_CPT_ALLOC(tx->tx_wrq, lnet_cpt_table(), ps->ps_cpt, - (1 + IBLND_MAX_RDMA_FRAGS) * - sizeof(*tx->tx_wrq)); + tx->tx_wrq = kzalloc_cpt((1 + IBLND_MAX_RDMA_FRAGS) * + sizeof(*tx->tx_wrq), + GFP_NOFS, ps->ps_cpt); if (!tx->tx_wrq) break; - LIBCFS_CPT_ALLOC(tx->tx_sge, lnet_cpt_table(), ps->ps_cpt, - (1 + IBLND_MAX_RDMA_FRAGS) * - sizeof(*tx->tx_sge)); + tx->tx_sge = kzalloc_cpt((1 + IBLND_MAX_RDMA_FRAGS) * + sizeof(*tx->tx_sge), + GFP_NOFS, ps->ps_cpt); if (!tx->tx_sge) break; - LIBCFS_CPT_ALLOC(tx->tx_rd, lnet_cpt_table(), ps->ps_cpt, - offsetof(struct kib_rdma_desc, - rd_frags[IBLND_MAX_RDMA_FRAGS])); + tx->tx_rd = kzalloc_cpt(offsetof(struct kib_rdma_desc, + rd_frags[IBLND_MAX_RDMA_FRAGS]), + GFP_NOFS, ps->ps_cpt); if (!tx->tx_rd) break; } @@ -2263,7 +2236,7 @@ void kiblnd_hdev_destroy(struct kib_hca_dev *hdev) if (hdev->ibh_cmid) rdma_destroy_id(hdev->ibh_cmid); - LIBCFS_FREE(hdev, sizeof(*hdev)); + kfree(hdev); } /* DUMMY */ @@ -2392,7 +2365,7 @@ int kiblnd_dev_failover(struct kib_dev *dev) goto out; } - LIBCFS_ALLOC(hdev, sizeof(*hdev)); + hdev = kzalloc(sizeof(*hdev), GFP_NOFS); if (!hdev) { CERROR("Failed to allocate kib_hca_dev\n"); rdma_destroy_id(cmid); @@ -2471,7 +2444,7 @@ void kiblnd_destroy_dev(struct kib_dev *dev) if (dev->ibd_hdev) kiblnd_hdev_decref(dev->ibd_hdev); - LIBCFS_FREE(dev, sizeof(*dev)); + kfree(dev); } static struct kib_dev *kiblnd_create_dev(char *ifname) @@ -2495,7 +2468,7 @@ static struct kib_dev *kiblnd_create_dev(char *ifname) return NULL; } - LIBCFS_ALLOC(dev, sizeof(*dev)); + dev = kzalloc(sizeof(*dev), GFP_NOFS); if (!dev) return NULL; @@ -2517,7 +2490,7 @@ static struct kib_dev *kiblnd_create_dev(char *ifname) rc = kiblnd_dev_failover(dev); if (rc) { CERROR("Can't initialize device: %d\n", rc); - LIBCFS_FREE(dev, sizeof(*dev)); + kfree(dev); return NULL; } @@ -2577,11 +2550,7 @@ static void kiblnd_base_shutdown(void) break; } - if (kiblnd_data.kib_peers) { - LIBCFS_FREE(kiblnd_data.kib_peers, - sizeof(struct list_head) * - kiblnd_data.kib_peer_hash_size); - } + kvfree(kiblnd_data.kib_peers); if (kiblnd_data.kib_scheds) cfs_percpt_free(kiblnd_data.kib_scheds); @@ -2648,7 +2617,7 @@ static void kiblnd_shutdown(struct lnet_ni *ni) net->ibn_init = IBLND_INIT_NOTHING; ni->ni_data = NULL; - LIBCFS_FREE(net, sizeof(*net)); + kfree(net); out: if (list_empty(&kiblnd_data.kib_devs)) @@ -2673,8 +2642,9 @@ static int kiblnd_base_startup(void) INIT_LIST_HEAD(&kiblnd_data.kib_failed_devs); kiblnd_data.kib_peer_hash_size = IBLND_PEER_HASH_SIZE; - LIBCFS_ALLOC(kiblnd_data.kib_peers, - sizeof(struct list_head) * kiblnd_data.kib_peer_hash_size); + kiblnd_data.kib_peers = kvmalloc_array(kiblnd_data.kib_peer_hash_size, + sizeof(struct list_head), + GFP_KERNEL); if (!kiblnd_data.kib_peers) goto failed; for (i = 0; i < kiblnd_data.kib_peer_hash_size; i++) @@ -2865,7 +2835,7 @@ static int kiblnd_startup(struct lnet_ni *ni) return rc; } - LIBCFS_ALLOC(net, sizeof(*net)); + net = kzalloc(sizeof(*net), GFP_NOFS); ni->ni_data = net; if (!net) goto net_failed; diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h index 171eced213f8..b18911d09e9a 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h @@ -1016,7 +1016,7 @@ int kiblnd_close_peer_conns_locked(struct kib_peer *peer, int why); struct kib_conn *kiblnd_create_conn(struct kib_peer *peer, struct rdma_cm_id *cmid, int state, int version); -void kiblnd_destroy_conn(struct kib_conn *conn, bool free_conn); +void kiblnd_destroy_conn(struct kib_conn *conn); void kiblnd_close_conn(struct kib_conn *conn, int error); void kiblnd_close_conn_locked(struct kib_conn *conn, int error); diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c index 40e3af5d8b04..b3e7f28eb978 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c @@ -2124,7 +2124,7 @@ kiblnd_connreq_done(struct kib_conn *conn, int status) (conn->ibc_state == IBLND_CONN_PASSIVE_WAIT && peer->ibp_accepting > 0)); - LIBCFS_FREE(conn->ibc_connvars, sizeof(*conn->ibc_connvars)); + kfree(conn->ibc_connvars); conn->ibc_connvars = NULL; if (status) { @@ -3314,11 +3314,13 @@ kiblnd_connd(void *arg) spin_unlock_irqrestore(lock, flags); dropped_lock = 1; - kiblnd_destroy_conn(conn, !peer); + kiblnd_destroy_conn(conn); spin_lock_irqsave(lock, flags); - if (!peer) + if (!peer) { + kfree(conn); continue; + } conn->ibc_peer = peer; if (peer->ibp_reconnected < KIB_RECONN_HIGH_RACE) @@ -3363,7 +3365,7 @@ kiblnd_connd(void *arg) reconn += kiblnd_reconnect_peer(conn->ibc_peer); kiblnd_peer_decref(conn->ibc_peer); - LIBCFS_FREE(conn, sizeof(*conn)); + kfree(conn); spin_lock_irqsave(lock, flags); } diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c index a71b765215ad..b9235400bf1d 100644 --- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c +++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c @@ -181,8 +181,8 @@ int kiblnd_tunables_setup(struct lnet_ni *ni) * defaulted */ if (!ni->ni_lnd_tunables) { - LIBCFS_ALLOC(ni->ni_lnd_tunables, - sizeof(*ni->ni_lnd_tunables)); + ni->ni_lnd_tunables = kzalloc(sizeof(*ni->ni_lnd_tunables), + GFP_NOFS); if (!ni->ni_lnd_tunables) return -ENOMEM; diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c index 8267119ccc8e..ff292216290d 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c @@ -66,7 +66,7 @@ ksocknal_create_route(__u32 ipaddr, int port) { struct ksock_route *route; - LIBCFS_ALLOC(route, sizeof(*route)); + route = kzalloc(sizeof(*route), GFP_NOFS); if (!route) return NULL; @@ -93,7 +93,7 @@ ksocknal_destroy_route(struct ksock_route *route) if (route->ksnr_peer) ksocknal_peer_decref(route->ksnr_peer); - LIBCFS_FREE(route, sizeof(*route)); + kfree(route); } static int @@ -108,7 +108,7 @@ ksocknal_create_peer(struct ksock_peer **peerp, struct lnet_ni *ni, LASSERT(id.pid != LNET_PID_ANY); LASSERT(!in_interrupt()); - LIBCFS_CPT_ALLOC(peer, lnet_cpt_table(), cpt, sizeof(*peer)); + peer = kzalloc_cpt(sizeof(*peer), GFP_NOFS, cpt); if (!peer) return -ENOMEM; @@ -132,7 +132,7 @@ ksocknal_create_peer(struct ksock_peer **peerp, struct lnet_ni *ni, if (net->ksnn_shutdown) { spin_unlock_bh(&net->ksnn_lock); - LIBCFS_FREE(peer, sizeof(*peer)); + kfree(peer); CERROR("Can't create peer: network shutdown\n"); return -ESHUTDOWN; } @@ -160,7 +160,7 @@ ksocknal_destroy_peer(struct ksock_peer *peer) LASSERT(list_empty(&peer->ksnp_tx_queue)); LASSERT(list_empty(&peer->ksnp_zc_req_list)); - LIBCFS_FREE(peer, sizeof(*peer)); + kfree(peer); /* * NB a peer's connections and routes keep a reference on their peer @@ -985,7 +985,7 @@ ksocknal_accept(struct lnet_ni *ni, struct socket *sock) rc = lnet_sock_getaddr(sock, 1, &peer_ip, &peer_port); LASSERT(!rc); /* we succeeded before */ - LIBCFS_ALLOC(cr, sizeof(*cr)); + cr = kzalloc(sizeof(*cr), GFP_NOFS); if (!cr) { LCONSOLE_ERROR_MSG(0x12f, "Dropping connection request from %pI4h: memory exhausted\n", &peer_ip); @@ -1043,7 +1043,7 @@ ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route, LASSERT(active == (type != SOCKLND_CONN_NONE)); - LIBCFS_ALLOC(conn, sizeof(*conn)); + conn = kzalloc(sizeof(*conn), GFP_NOFS); if (!conn) { rc = -ENOMEM; goto failed_0; @@ -1070,8 +1070,9 @@ ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route, conn->ksnc_tx_carrier = NULL; atomic_set(&conn->ksnc_tx_nob, 0); - LIBCFS_ALLOC(hello, offsetof(struct ksock_hello_msg, - kshm_ips[LNET_MAX_INTERFACES])); + hello = kvzalloc(offsetof(struct ksock_hello_msg, + kshm_ips[LNET_MAX_INTERFACES]), + GFP_KERNEL); if (!hello) { rc = -ENOMEM; goto failed_1; @@ -1334,8 +1335,7 @@ ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route, rc = ksocknal_send_hello(ni, conn, peerid.nid, hello); } - LIBCFS_FREE(hello, offsetof(struct ksock_hello_msg, - kshm_ips[LNET_MAX_INTERFACES])); + kvfree(hello); /* * setup the socket AFTER I've received hello (it disables @@ -1415,11 +1415,9 @@ ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route, ksocknal_peer_decref(peer); failed_1: - if (hello) - LIBCFS_FREE(hello, offsetof(struct ksock_hello_msg, - kshm_ips[LNET_MAX_INTERFACES])); + kvfree(hello); - LIBCFS_FREE(conn, sizeof(*conn)); + kfree(conn); failed_0: sock_release(sock); @@ -1716,7 +1714,7 @@ ksocknal_destroy_conn(struct ksock_conn *conn) ksocknal_peer_decref(conn->ksnc_peer); - LIBCFS_FREE(conn, sizeof(*conn)); + kfree(conn); } int @@ -2259,19 +2257,12 @@ ksocknal_free_buffers(void) struct ksock_sched_info *info; int i; - cfs_percpt_for_each(info, i, ksocknal_data.ksnd_sched_info) { - if (info->ksi_scheds) { - LIBCFS_FREE(info->ksi_scheds, - info->ksi_nthreads_max * - sizeof(info->ksi_scheds[0])); - } - } + cfs_percpt_for_each(info, i, ksocknal_data.ksnd_sched_info) + kfree(info->ksi_scheds); cfs_percpt_free(ksocknal_data.ksnd_sched_info); } - LIBCFS_FREE(ksocknal_data.ksnd_peers, - sizeof(struct list_head) * - ksocknal_data.ksnd_peer_hash_size); + kvfree(ksocknal_data.ksnd_peers); spin_lock(&ksocknal_data.ksnd_tx_lock); @@ -2286,7 +2277,7 @@ ksocknal_free_buffers(void) list_for_each_entry_safe(tx, temp, &zlist, tx_list) { list_del(&tx->tx_list); - LIBCFS_FREE(tx, tx->tx_desc_size); + kfree(tx); } } else { spin_unlock(&ksocknal_data.ksnd_tx_lock); @@ -2401,9 +2392,9 @@ ksocknal_base_startup(void) memset(&ksocknal_data, 0, sizeof(ksocknal_data)); /* zero pointers */ ksocknal_data.ksnd_peer_hash_size = SOCKNAL_PEER_HASH_SIZE; - LIBCFS_ALLOC(ksocknal_data.ksnd_peers, - sizeof(struct list_head) * - ksocknal_data.ksnd_peer_hash_size); + ksocknal_data.ksnd_peers = kvmalloc_array(ksocknal_data.ksnd_peer_hash_size, + sizeof(struct list_head), + GFP_KERNEL); if (!ksocknal_data.ksnd_peers) return -ENOMEM; @@ -2456,8 +2447,8 @@ ksocknal_base_startup(void) info->ksi_nthreads_max = nthrs; info->ksi_cpt = i; - LIBCFS_CPT_ALLOC(info->ksi_scheds, lnet_cpt_table(), i, - info->ksi_nthreads_max * sizeof(*sched)); + info->ksi_scheds = kzalloc_cpt(info->ksi_nthreads_max * sizeof(*sched), + GFP_NOFS, i); if (!info->ksi_scheds) goto failed; @@ -2622,7 +2613,7 @@ ksocknal_shutdown(struct lnet_ni *ni) } list_del(&net->ksnn_list); - LIBCFS_FREE(net, sizeof(*net)); + kfree(net); ksocknal_data.ksnd_nnets--; if (!ksocknal_data.ksnd_nnets) @@ -2815,7 +2806,7 @@ ksocknal_startup(struct lnet_ni *ni) return rc; } - LIBCFS_ALLOC(net, sizeof(*net)); + net = kzalloc(sizeof(*net), GFP_NOFS); if (!net) goto fail_0; @@ -2877,7 +2868,7 @@ ksocknal_startup(struct lnet_ni *ni) return 0; fail_1: - LIBCFS_FREE(net, sizeof(*net)); + kfree(net); fail_0: if (!ksocknal_data.ksnd_nnets) ksocknal_base_shutdown(); diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c index 27c56d5ae4e5..11fd3a36424f 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c @@ -46,7 +46,7 @@ ksocknal_alloc_tx(int type, int size) } if (!tx) - LIBCFS_ALLOC(tx, size); + tx = kzalloc(size, GFP_NOFS); if (!tx) return NULL; @@ -102,7 +102,7 @@ ksocknal_free_tx(struct ksock_tx *tx) spin_unlock(&ksocknal_data.ksnd_tx_lock); } else { - LIBCFS_FREE(tx, tx->tx_desc_size); + kfree(tx); } } @@ -2117,7 +2117,7 @@ ksocknal_connd(void *arg) ksocknal_create_conn(cr->ksncr_ni, NULL, cr->ksncr_sock, SOCKLND_CONN_NONE); lnet_ni_decref(cr->ksncr_ni); - LIBCFS_FREE(cr, sizeof(*cr)); + kfree(cr); spin_lock_bh(connd_lock); } diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c index d827f770e831..05982dac781c 100644 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c +++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c @@ -467,7 +467,7 @@ ksocknal_send_hello_v1(struct ksock_conn *conn, struct ksock_hello_msg *hello) BUILD_BUG_ON(sizeof(struct lnet_magicversion) != offsetof(struct lnet_hdr, src_nid)); - LIBCFS_ALLOC(hdr, sizeof(*hdr)); + hdr = kzalloc(sizeof(*hdr), GFP_NOFS); if (!hdr) { CERROR("Can't allocate struct lnet_hdr\n"); return -ENOMEM; @@ -526,7 +526,7 @@ ksocknal_send_hello_v1(struct ksock_conn *conn, struct ksock_hello_msg *hello) &conn->ksnc_ipaddr, conn->ksnc_port); } out: - LIBCFS_FREE(hdr, sizeof(*hdr)); + kfree(hdr); return rc; } @@ -582,7 +582,7 @@ ksocknal_recv_hello_v1(struct ksock_conn *conn, struct ksock_hello_msg *hello, int rc; int i; - LIBCFS_ALLOC(hdr, sizeof(*hdr)); + hdr = kzalloc(sizeof(*hdr), GFP_NOFS); if (!hdr) { CERROR("Can't allocate struct lnet_hdr\n"); return -ENOMEM; @@ -644,7 +644,7 @@ ksocknal_recv_hello_v1(struct ksock_conn *conn, struct ksock_hello_msg *hello, } } out: - LIBCFS_FREE(hdr, sizeof(*hdr)); + kfree(hdr); return rc; } diff --git a/drivers/staging/lustre/lnet/libcfs/Makefile b/drivers/staging/lustre/lnet/libcfs/Makefile index 1607570ef8de..730f2c675047 100644 --- a/drivers/staging/lustre/lnet/libcfs/Makefile +++ b/drivers/staging/lustre/lnet/libcfs/Makefile @@ -15,7 +15,7 @@ libcfs-linux-objs += linux-mem.o libcfs-linux-objs := $(addprefix linux/,$(libcfs-linux-objs)) libcfs-all-objs := debug.o fail.o module.o tracefile.o \ - libcfs_string.o hash.o prng.o workitem.o \ + libcfs_string.o hash.o \ libcfs_cpu.o libcfs_mem.o libcfs_lock.o libcfs-objs := $(libcfs-linux-objs) $(libcfs-all-objs) diff --git a/drivers/staging/lustre/lnet/libcfs/fail.c b/drivers/staging/lustre/lnet/libcfs/fail.c index 5d501beeb622..39439b303d65 100644 --- a/drivers/staging/lustre/lnet/libcfs/fail.c +++ b/drivers/staging/lustre/lnet/libcfs/fail.c @@ -61,7 +61,7 @@ int __cfs_fail_check_set(u32 id, u32 value, int set) /* Fail 1/cfs_fail_val times */ if (cfs_fail_loc & CFS_FAIL_RAND) { - if (cfs_fail_val < 2 || cfs_rand() % cfs_fail_val > 0) + if (cfs_fail_val < 2 || prandom_u32_max(cfs_fail_val) > 0) return 0; } diff --git a/drivers/staging/lustre/lnet/libcfs/hash.c b/drivers/staging/lustre/lnet/libcfs/hash.c index f4f67d2b301e..f7b3c9306456 100644 --- a/drivers/staging/lustre/lnet/libcfs/hash.c +++ b/drivers/staging/lustre/lnet/libcfs/hash.c @@ -114,7 +114,7 @@ module_param(warn_on_depth, uint, 0644); MODULE_PARM_DESC(warn_on_depth, "warning when hash depth is high."); #endif -struct cfs_wi_sched *cfs_sched_rehash; +struct workqueue_struct *cfs_rehash_wq; static inline void cfs_hash_nl_lock(union cfs_hash_lock *lock, int exclusive) {} @@ -519,7 +519,7 @@ cfs_hash_bd_dep_record(struct cfs_hash *hs, struct cfs_hash_bd *bd, int dep_cur) hs->hs_dep_bits = hs->hs_cur_bits; spin_unlock(&hs->hs_dep_lock); - cfs_wi_schedule(cfs_sched_rehash, &hs->hs_dep_wi); + queue_work(cfs_rehash_wq, &hs->hs_dep_work); # endif } @@ -864,12 +864,10 @@ cfs_hash_buckets_free(struct cfs_hash_bucket **buckets, { int i; - for (i = prev_size; i < size; i++) { - if (buckets[i]) - LIBCFS_FREE(buckets[i], bkt_size); - } + for (i = prev_size; i < size; i++) + kfree(buckets[i]); - LIBCFS_FREE(buckets, sizeof(buckets[0]) * size); + kvfree(buckets); } /* @@ -889,7 +887,7 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts, if (old_bkts && old_size == new_size) return old_bkts; - LIBCFS_ALLOC(new_bkts, sizeof(new_bkts[0]) * new_size); + new_bkts = kvmalloc_array(new_size, sizeof(new_bkts[0]), GFP_KERNEL); if (!new_bkts) return NULL; @@ -902,7 +900,7 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts, struct hlist_head *hhead; struct cfs_hash_bd bd; - LIBCFS_ALLOC(new_bkts[i], cfs_hash_bkt_size(hs)); + new_bkts[i] = kzalloc(cfs_hash_bkt_size(hs), GFP_KERNEL); if (!new_bkts[i]) { cfs_hash_buckets_free(new_bkts, cfs_hash_bkt_size(hs), old_size, new_size); @@ -939,12 +937,12 @@ cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts, * @flags - CFS_HASH_REHASH enable synamic hash resizing * - CFS_HASH_SORT enable chained hash sort */ -static int cfs_hash_rehash_worker(struct cfs_workitem *wi); +static void cfs_hash_rehash_worker(struct work_struct *work); #if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1 -static int cfs_hash_dep_print(struct cfs_workitem *wi) +static void cfs_hash_dep_print(struct work_struct *work) { - struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_dep_wi); + struct cfs_hash *hs = container_of(work, struct cfs_hash, hs_dep_work); int dep; int bkt; int off; @@ -968,21 +966,12 @@ static int cfs_hash_dep_print(struct cfs_workitem *wi) static void cfs_hash_depth_wi_init(struct cfs_hash *hs) { spin_lock_init(&hs->hs_dep_lock); - cfs_wi_init(&hs->hs_dep_wi, hs, cfs_hash_dep_print); + INIT_WORK(&hs->hs_dep_work, cfs_hash_dep_print); } static void cfs_hash_depth_wi_cancel(struct cfs_hash *hs) { - if (cfs_wi_deschedule(cfs_sched_rehash, &hs->hs_dep_wi)) - return; - - spin_lock(&hs->hs_dep_lock); - while (hs->hs_dep_bits) { - spin_unlock(&hs->hs_dep_lock); - cond_resched(); - spin_lock(&hs->hs_dep_lock); - } - spin_unlock(&hs->hs_dep_lock); + cancel_work_sync(&hs->hs_dep_work); } #else /* CFS_HASH_DEBUG_LEVEL < CFS_HASH_DEBUG_1 */ @@ -1023,7 +1012,7 @@ cfs_hash_create(char *name, unsigned int cur_bits, unsigned int max_bits, len = !(flags & CFS_HASH_BIGNAME) ? CFS_HASH_NAME_LEN : CFS_HASH_BIGNAME_LEN; - LIBCFS_ALLOC(hs, offsetof(struct cfs_hash, hs_name[len])); + hs = kzalloc(offsetof(struct cfs_hash, hs_name[len]), GFP_KERNEL); if (!hs) return NULL; @@ -1044,7 +1033,7 @@ cfs_hash_create(char *name, unsigned int cur_bits, unsigned int max_bits, hs->hs_ops = ops; hs->hs_extra_bytes = extra_bytes; hs->hs_rehash_bits = 0; - cfs_wi_init(&hs->hs_rehash_wi, hs, cfs_hash_rehash_worker); + INIT_WORK(&hs->hs_rehash_work, cfs_hash_rehash_worker); cfs_hash_depth_wi_init(hs); if (cfs_hash_with_rehash(hs)) @@ -1055,7 +1044,7 @@ cfs_hash_create(char *name, unsigned int cur_bits, unsigned int max_bits, if (hs->hs_buckets) return hs; - LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[len])); + kfree(hs); return NULL; } EXPORT_SYMBOL(cfs_hash_create); @@ -1118,7 +1107,7 @@ cfs_hash_destroy(struct cfs_hash *hs) 0, CFS_HASH_NBKT(hs)); i = cfs_hash_with_bigname(hs) ? CFS_HASH_BIGNAME_LEN : CFS_HASH_NAME_LEN; - LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[i])); + kfree(hs); } struct cfs_hash *cfs_hash_getref(struct cfs_hash *hs) @@ -1364,6 +1353,7 @@ cfs_hash_for_each_enter(struct cfs_hash *hs) cfs_hash_lock(hs, 1); hs->hs_iterators++; + cfs_hash_unlock(hs, 1); /* NB: iteration is mostly called by service thread, * we tend to cancel pending rehash-request, instead of @@ -1371,8 +1361,7 @@ cfs_hash_for_each_enter(struct cfs_hash *hs) * after iteration */ if (cfs_hash_is_rehashing(hs)) - cfs_hash_rehash_cancel_locked(hs); - cfs_hash_unlock(hs, 1); + cfs_hash_rehash_cancel(hs); } static void @@ -1774,42 +1763,13 @@ EXPORT_SYMBOL(cfs_hash_for_each_key); * theta thresholds for @hs are tunable via cfs_hash_set_theta(). */ void -cfs_hash_rehash_cancel_locked(struct cfs_hash *hs) -{ - int i; - - /* need hold cfs_hash_lock(hs, 1) */ - LASSERT(cfs_hash_with_rehash(hs) && - !cfs_hash_with_no_lock(hs)); - - if (!cfs_hash_is_rehashing(hs)) - return; - - if (cfs_wi_deschedule(cfs_sched_rehash, &hs->hs_rehash_wi)) { - hs->hs_rehash_bits = 0; - return; - } - - for (i = 2; cfs_hash_is_rehashing(hs); i++) { - cfs_hash_unlock(hs, 1); - /* raise console warning while waiting too long */ - CDEBUG(is_power_of_2(i >> 3) ? D_WARNING : D_INFO, - "hash %s is still rehashing, rescheded %d\n", - hs->hs_name, i - 1); - cond_resched(); - cfs_hash_lock(hs, 1); - } -} - -void cfs_hash_rehash_cancel(struct cfs_hash *hs) { - cfs_hash_lock(hs, 1); - cfs_hash_rehash_cancel_locked(hs); - cfs_hash_unlock(hs, 1); + LASSERT(cfs_hash_with_rehash(hs)); + cancel_work_sync(&hs->hs_rehash_work); } -int +void cfs_hash_rehash(struct cfs_hash *hs, int do_rehash) { int rc; @@ -1821,21 +1781,21 @@ cfs_hash_rehash(struct cfs_hash *hs, int do_rehash) rc = cfs_hash_rehash_bits(hs); if (rc <= 0) { cfs_hash_unlock(hs, 1); - return rc; + return; } hs->hs_rehash_bits = rc; if (!do_rehash) { /* launch and return */ - cfs_wi_schedule(cfs_sched_rehash, &hs->hs_rehash_wi); + queue_work(cfs_rehash_wq, &hs->hs_rehash_work); cfs_hash_unlock(hs, 1); - return 0; + return; } /* rehash right now */ cfs_hash_unlock(hs, 1); - return cfs_hash_rehash_worker(&hs->hs_rehash_wi); + cfs_hash_rehash_worker(&hs->hs_rehash_work); } static int @@ -1869,10 +1829,10 @@ cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old) return c; } -static int -cfs_hash_rehash_worker(struct cfs_workitem *wi) +static void +cfs_hash_rehash_worker(struct work_struct *work) { - struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_rehash_wi); + struct cfs_hash *hs = container_of(work, struct cfs_hash, hs_rehash_work); struct cfs_hash_bucket **bkts; struct cfs_hash_bd bd; unsigned int old_size; @@ -1956,8 +1916,6 @@ cfs_hash_rehash_worker(struct cfs_workitem *wi) hs->hs_cur_bits = hs->hs_rehash_bits; out: hs->hs_rehash_bits = 0; - if (rc == -ESRCH) /* never be scheduled again */ - cfs_wi_exit(cfs_sched_rehash, wi); bsize = cfs_hash_bkt_size(hs); cfs_hash_unlock(hs, 1); /* can't refer to @hs anymore because it could be destroyed */ @@ -1965,8 +1923,6 @@ out: cfs_hash_buckets_free(bkts, bsize, new_size, old_size); if (rc) CDEBUG(D_INFO, "early quit of rehashing: %d\n", rc); - /* return 1 only if cfs_wi_exit is called */ - return rc == -ESRCH; } /** diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c b/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c index e3a4c67a66b5..76291a350406 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c @@ -51,7 +51,7 @@ cfs_cpt_table_alloc(unsigned int ncpt) return NULL; } - LIBCFS_ALLOC(cptab, sizeof(*cptab)); + cptab = kzalloc(sizeof(*cptab), GFP_NOFS); if (cptab) { cptab->ctb_version = CFS_CPU_VERSION_MAGIC; node_set(0, cptab->ctb_nodemask); @@ -67,7 +67,7 @@ cfs_cpt_table_free(struct cfs_cpt_table *cptab) { LASSERT(cptab->ctb_version == CFS_CPU_VERSION_MAGIC); - LIBCFS_FREE(cptab, sizeof(*cptab)); + kfree(cptab); } EXPORT_SYMBOL(cfs_cpt_table_free); @@ -113,7 +113,7 @@ cfs_cpt_nodemask(struct cfs_cpt_table *cptab, int cpt) { return &cptab->ctb_nodemask; } -EXPORT_SYMBOL(cfs_cpt_cpumask); +EXPORT_SYMBOL(cfs_cpt_nodemask); int cfs_cpt_set_cpu(struct cfs_cpt_table *cptab, int cpt, int cpu) diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c index f6a0040f4ab1..670ad5a34224 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c @@ -38,7 +38,7 @@ cfs_percpt_lock_free(struct cfs_percpt_lock *pcl) LASSERT(!pcl->pcl_locked); cfs_percpt_free(pcl->pcl_locks); - LIBCFS_FREE(pcl, sizeof(*pcl)); + kfree(pcl); } EXPORT_SYMBOL(cfs_percpt_lock_free); @@ -58,14 +58,14 @@ cfs_percpt_lock_create(struct cfs_cpt_table *cptab, int i; /* NB: cptab can be NULL, pcl will be for HW CPUs on that case */ - LIBCFS_ALLOC(pcl, sizeof(*pcl)); + pcl = kzalloc(sizeof(*pcl), GFP_NOFS); if (!pcl) return NULL; pcl->pcl_cptab = cptab; pcl->pcl_locks = cfs_percpt_alloc(cptab, sizeof(*lock)); if (!pcl->pcl_locks) { - LIBCFS_FREE(pcl, sizeof(*pcl)); + kfree(pcl); return NULL; } diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c b/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c index df93d8f77ea2..7faed94994ea 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c @@ -49,13 +49,10 @@ cfs_percpt_free(void *vars) arr = container_of(vars, struct cfs_var_array, va_ptrs[0]); - for (i = 0; i < arr->va_count; i++) { - if (arr->va_ptrs[i]) - LIBCFS_FREE(arr->va_ptrs[i], arr->va_size); - } + for (i = 0; i < arr->va_count; i++) + kfree(arr->va_ptrs[i]); - LIBCFS_FREE(arr, offsetof(struct cfs_var_array, - va_ptrs[arr->va_count])); + kvfree(arr); } EXPORT_SYMBOL(cfs_percpt_free); @@ -79,7 +76,8 @@ cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size) count = cfs_cpt_number(cptab); - LIBCFS_ALLOC(arr, offsetof(struct cfs_var_array, va_ptrs[count])); + arr = kvzalloc(offsetof(struct cfs_var_array, va_ptrs[count]), + GFP_KERNEL); if (!arr) return NULL; @@ -89,7 +87,8 @@ cfs_percpt_alloc(struct cfs_cpt_table *cptab, unsigned int size) arr->va_cptab = cptab; for (i = 0; i < count; i++) { - LIBCFS_CPT_ALLOC(arr->va_ptrs[i], cptab, i, size); + arr->va_ptrs[i] = kzalloc_node(size, GFP_KERNEL, + cfs_cpt_spread_node(cptab, i)); if (!arr->va_ptrs[i]) { cfs_percpt_free((void *)&arr->va_ptrs[0]); return NULL; @@ -130,10 +129,9 @@ cfs_array_free(void *vars) if (!arr->va_ptrs[i]) continue; - LIBCFS_FREE(arr->va_ptrs[i], arr->va_size); + kvfree(arr->va_ptrs[i]); } - LIBCFS_FREE(arr, offsetof(struct cfs_var_array, - va_ptrs[arr->va_count])); + kvfree(arr); } EXPORT_SYMBOL(cfs_array_free); @@ -148,7 +146,7 @@ cfs_array_alloc(int count, unsigned int size) struct cfs_var_array *arr; int i; - LIBCFS_ALLOC(arr, offsetof(struct cfs_var_array, va_ptrs[count])); + arr = kvmalloc(offsetof(struct cfs_var_array, va_ptrs[count]), GFP_KERNEL); if (!arr) return NULL; @@ -156,7 +154,7 @@ cfs_array_alloc(int count, unsigned int size) arr->va_size = size; for (i = 0; i < count; i++) { - LIBCFS_ALLOC(arr->va_ptrs[i], size); + arr->va_ptrs[i] = kvzalloc(size, GFP_KERNEL); if (!arr->va_ptrs[i]) { cfs_array_free((void *)&arr->va_ptrs[0]); diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_string.c b/drivers/staging/lustre/lnet/libcfs/libcfs_string.c index bcac5074bf80..442889a3d729 100644 --- a/drivers/staging/lustre/lnet/libcfs/libcfs_string.c +++ b/drivers/staging/lustre/lnet/libcfs/libcfs_string.c @@ -137,26 +137,6 @@ out: } EXPORT_SYMBOL(cfs_firststr); -char * -cfs_trimwhite(char *str) -{ - char *end; - - while (isspace(*str)) - str++; - - end = str + strlen(str); - while (end > str) { - if (!isspace(end[-1])) - break; - end--; - } - - *end = 0; - return str; -} -EXPORT_SYMBOL(cfs_trimwhite); - /** * Extracts tokens from strings. * @@ -280,7 +260,7 @@ cfs_range_expr_parse(struct cfs_lstr *src, unsigned int min, unsigned int max, struct cfs_range_expr *re; struct cfs_lstr tok; - LIBCFS_ALLOC(re, sizeof(*re)); + re = kzalloc(sizeof(*re), GFP_NOFS); if (!re) return -ENOMEM; @@ -333,7 +313,7 @@ cfs_range_expr_parse(struct cfs_lstr *src, unsigned int min, unsigned int max, return 0; failed: - LIBCFS_FREE(re, sizeof(*re)); + kfree(re); return -EINVAL; } @@ -457,7 +437,7 @@ cfs_expr_list_values(struct cfs_expr_list *expr_list, int max, u32 **valpp) return -EINVAL; } - LIBCFS_ALLOC(val, sizeof(val[0]) * count); + val = kvmalloc_array(count, sizeof(val[0]), GFP_KERNEL | __GFP_ZERO); if (!val) return -ENOMEM; @@ -488,10 +468,10 @@ cfs_expr_list_free(struct cfs_expr_list *expr_list) expr = list_entry(expr_list->el_exprs.next, struct cfs_range_expr, re_link); list_del(&expr->re_link); - LIBCFS_FREE(expr, sizeof(*expr)); + kfree(expr); } - LIBCFS_FREE(expr_list, sizeof(*expr_list)); + kfree(expr_list); } EXPORT_SYMBOL(cfs_expr_list_free); @@ -510,7 +490,7 @@ cfs_expr_list_parse(char *str, int len, unsigned int min, unsigned int max, struct cfs_lstr src; int rc; - LIBCFS_ALLOC(expr_list, sizeof(*expr_list)); + expr_list = kzalloc(sizeof(*expr_list), GFP_NOFS); if (!expr_list) return -ENOMEM; diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c index 51823ce71773..c07165e0ad95 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c @@ -72,7 +72,7 @@ struct cfs_cpt_data { /* mutex to protect cpt_cpumask */ struct mutex cpt_mutex; /* scratch buffer for set/unset_node */ - cpumask_t *cpt_cpumask; + cpumask_var_t cpt_cpumask; }; static struct cfs_cpt_data cpt_data; @@ -93,35 +93,21 @@ cfs_cpt_table_free(struct cfs_cpt_table *cptab) { int i; - if (cptab->ctb_cpu2cpt) { - LIBCFS_FREE(cptab->ctb_cpu2cpt, - num_possible_cpus() * - sizeof(cptab->ctb_cpu2cpt[0])); - } + kvfree(cptab->ctb_cpu2cpt); for (i = 0; cptab->ctb_parts && i < cptab->ctb_nparts; i++) { struct cfs_cpu_partition *part = &cptab->ctb_parts[i]; - if (part->cpt_nodemask) { - LIBCFS_FREE(part->cpt_nodemask, - sizeof(*part->cpt_nodemask)); - } - - if (part->cpt_cpumask) - LIBCFS_FREE(part->cpt_cpumask, cpumask_size()); + kfree(part->cpt_nodemask); + free_cpumask_var(part->cpt_cpumask); } - if (cptab->ctb_parts) { - LIBCFS_FREE(cptab->ctb_parts, - cptab->ctb_nparts * sizeof(cptab->ctb_parts[0])); - } + kvfree(cptab->ctb_parts); - if (cptab->ctb_nodemask) - LIBCFS_FREE(cptab->ctb_nodemask, sizeof(*cptab->ctb_nodemask)); - if (cptab->ctb_cpumask) - LIBCFS_FREE(cptab->ctb_cpumask, cpumask_size()); + kfree(cptab->ctb_nodemask); + free_cpumask_var(cptab->ctb_cpumask); - LIBCFS_FREE(cptab, sizeof(*cptab)); + kfree(cptab); } EXPORT_SYMBOL(cfs_cpt_table_free); @@ -131,36 +117,39 @@ cfs_cpt_table_alloc(unsigned int ncpt) struct cfs_cpt_table *cptab; int i; - LIBCFS_ALLOC(cptab, sizeof(*cptab)); + cptab = kzalloc(sizeof(*cptab), GFP_NOFS); if (!cptab) return NULL; cptab->ctb_nparts = ncpt; - LIBCFS_ALLOC(cptab->ctb_cpumask, cpumask_size()); - LIBCFS_ALLOC(cptab->ctb_nodemask, sizeof(*cptab->ctb_nodemask)); - - if (!cptab->ctb_cpumask || !cptab->ctb_nodemask) + cptab->ctb_nodemask = kzalloc(sizeof(*cptab->ctb_nodemask), + GFP_NOFS); + if (!zalloc_cpumask_var(&cptab->ctb_cpumask, GFP_NOFS) || + !cptab->ctb_nodemask) goto failed; - LIBCFS_ALLOC(cptab->ctb_cpu2cpt, - num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0])); + cptab->ctb_cpu2cpt = kvmalloc_array(num_possible_cpus(), + sizeof(cptab->ctb_cpu2cpt[0]), + GFP_KERNEL); if (!cptab->ctb_cpu2cpt) goto failed; memset(cptab->ctb_cpu2cpt, -1, num_possible_cpus() * sizeof(cptab->ctb_cpu2cpt[0])); - LIBCFS_ALLOC(cptab->ctb_parts, ncpt * sizeof(cptab->ctb_parts[0])); + cptab->ctb_parts = kvmalloc_array(ncpt, sizeof(cptab->ctb_parts[0]), + GFP_KERNEL); if (!cptab->ctb_parts) goto failed; for (i = 0; i < ncpt; i++) { struct cfs_cpu_partition *part = &cptab->ctb_parts[i]; - LIBCFS_ALLOC(part->cpt_cpumask, cpumask_size()); - LIBCFS_ALLOC(part->cpt_nodemask, sizeof(*part->cpt_nodemask)); - if (!part->cpt_cpumask || !part->cpt_nodemask) + part->cpt_nodemask = kzalloc(sizeof(*part->cpt_nodemask), + GFP_NOFS); + if (!zalloc_cpumask_var(&part->cpt_cpumask, GFP_NOFS) || + !part->cpt_nodemask) goto failed; } @@ -251,13 +240,13 @@ cfs_cpt_online(struct cfs_cpt_table *cptab, int cpt) } EXPORT_SYMBOL(cfs_cpt_online); -cpumask_t * +cpumask_var_t * cfs_cpt_cpumask(struct cfs_cpt_table *cptab, int cpt) { LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts)); return cpt == CFS_CPT_ANY ? - cptab->ctb_cpumask : cptab->ctb_parts[cpt].cpt_cpumask; + &cptab->ctb_cpumask : &cptab->ctb_parts[cpt].cpt_cpumask; } EXPORT_SYMBOL(cfs_cpt_cpumask); @@ -405,7 +394,6 @@ EXPORT_SYMBOL(cfs_cpt_unset_cpumask); int cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node) { - cpumask_t *mask; int rc; if (node < 0 || node >= MAX_NUMNODES) { @@ -416,10 +404,9 @@ cfs_cpt_set_node(struct cfs_cpt_table *cptab, int cpt, int node) mutex_lock(&cpt_data.cpt_mutex); - mask = cpt_data.cpt_cpumask; - cfs_node_to_cpumask(node, mask); + cfs_node_to_cpumask(node, cpt_data.cpt_cpumask); - rc = cfs_cpt_set_cpumask(cptab, cpt, mask); + rc = cfs_cpt_set_cpumask(cptab, cpt, cpt_data.cpt_cpumask); mutex_unlock(&cpt_data.cpt_mutex); @@ -430,8 +417,6 @@ EXPORT_SYMBOL(cfs_cpt_set_node); void cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node) { - cpumask_t *mask; - if (node < 0 || node >= MAX_NUMNODES) { CDEBUG(D_INFO, "Invalid NUMA id %d for CPU partition %d\n", node, cpt); @@ -440,10 +425,9 @@ cfs_cpt_unset_node(struct cfs_cpt_table *cptab, int cpt, int node) mutex_lock(&cpt_data.cpt_mutex); - mask = cpt_data.cpt_cpumask; - cfs_node_to_cpumask(node, mask); + cfs_node_to_cpumask(node, cpt_data.cpt_cpumask); - cfs_cpt_unset_cpumask(cptab, cpt, mask); + cfs_cpt_unset_cpumask(cptab, cpt, cpt_data.cpt_cpumask); mutex_unlock(&cpt_data.cpt_mutex); } @@ -529,19 +513,20 @@ EXPORT_SYMBOL(cfs_cpt_spread_node); int cfs_cpt_current(struct cfs_cpt_table *cptab, int remap) { - int cpu = smp_processor_id(); - int cpt = cptab->ctb_cpu2cpt[cpu]; + int cpu; + int cpt; - if (cpt < 0) { - if (!remap) - return cpt; + preempt_disable(); + cpu = smp_processor_id(); + cpt = cptab->ctb_cpu2cpt[cpu]; + if (cpt < 0 && remap) { /* don't return negative value for safety of upper layer, * instead we shadow the unknown cpu to a valid partition ID */ cpt = cpu % cptab->ctb_nparts; } - + preempt_enable(); return cpt; } EXPORT_SYMBOL(cfs_cpt_current); @@ -558,7 +543,7 @@ EXPORT_SYMBOL(cfs_cpt_of_cpu); int cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt) { - cpumask_t *cpumask; + cpumask_var_t *cpumask; nodemask_t *nodemask; int rc; int i; @@ -566,24 +551,24 @@ cfs_cpt_bind(struct cfs_cpt_table *cptab, int cpt) LASSERT(cpt == CFS_CPT_ANY || (cpt >= 0 && cpt < cptab->ctb_nparts)); if (cpt == CFS_CPT_ANY) { - cpumask = cptab->ctb_cpumask; + cpumask = &cptab->ctb_cpumask; nodemask = cptab->ctb_nodemask; } else { - cpumask = cptab->ctb_parts[cpt].cpt_cpumask; + cpumask = &cptab->ctb_parts[cpt].cpt_cpumask; nodemask = cptab->ctb_parts[cpt].cpt_nodemask; } - if (cpumask_any_and(cpumask, cpu_online_mask) >= nr_cpu_ids) { + if (cpumask_any_and(*cpumask, cpu_online_mask) >= nr_cpu_ids) { CERROR("No online CPU found in CPU partition %d, did someone do CPU hotplug on system? You might need to reload Lustre modules to keep system working well.\n", cpt); return -EINVAL; } for_each_online_cpu(i) { - if (cpumask_test_cpu(i, cpumask)) + if (cpumask_test_cpu(i, *cpumask)) continue; - rc = set_cpus_allowed_ptr(current, cpumask); + rc = set_cpus_allowed_ptr(current, *cpumask); set_mems_allowed(*nodemask); if (!rc) schedule(); /* switch to allowed CPU */ @@ -604,8 +589,8 @@ static int cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt, cpumask_t *node, int number) { - cpumask_t *socket = NULL; - cpumask_t *core = NULL; + cpumask_var_t socket; + cpumask_var_t core; int rc = 0; int cpu; @@ -623,13 +608,17 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt, return 0; } - /* allocate scratch buffer */ - LIBCFS_ALLOC(socket, cpumask_size()); - LIBCFS_ALLOC(core, cpumask_size()); - if (!socket || !core) { + /* + * Allocate scratch buffers + * As we cannot initialize a cpumask_var_t, we need + * to alloc both before we can risk trying to free either + */ + if (!zalloc_cpumask_var(&socket, GFP_NOFS)) rc = -ENOMEM; + if (!zalloc_cpumask_var(&core, GFP_NOFS)) + rc = -ENOMEM; + if (rc) goto out; - } while (!cpumask_empty(node)) { cpu = cpumask_first(node); @@ -667,10 +656,8 @@ cfs_cpt_choose_ncpus(struct cfs_cpt_table *cptab, int cpt, } out: - if (socket) - LIBCFS_FREE(socket, cpumask_size()); - if (core) - LIBCFS_FREE(core, cpumask_size()); + free_cpumask_var(socket); + free_cpumask_var(core); return rc; } @@ -723,7 +710,7 @@ static struct cfs_cpt_table * cfs_cpt_table_create(int ncpt) { struct cfs_cpt_table *cptab = NULL; - cpumask_t *mask = NULL; + cpumask_var_t mask; int cpt = 0; int num; int rc; @@ -756,8 +743,7 @@ cfs_cpt_table_create(int ncpt) goto failed; } - LIBCFS_ALLOC(mask, cpumask_size()); - if (!mask) { + if (!zalloc_cpumask_var(&mask, GFP_NOFS)){ CERROR("Failed to allocate scratch cpumask\n"); goto failed; } @@ -784,7 +770,7 @@ cfs_cpt_table_create(int ncpt) rc = cfs_cpt_choose_ncpus(cptab, cpt, mask, n); if (rc < 0) - goto failed; + goto failed_mask; LASSERT(num >= cpumask_weight(part->cpt_cpumask)); if (num == cpumask_weight(part->cpt_cpumask)) @@ -797,20 +783,19 @@ cfs_cpt_table_create(int ncpt) CERROR("Expect %d(%d) CPU partitions but got %d(%d), CPU hotplug/unplug while setting?\n", cptab->ctb_nparts, num, cpt, cpumask_weight(cptab->ctb_parts[ncpt - 1].cpt_cpumask)); - goto failed; + goto failed_mask; } - LIBCFS_FREE(mask, cpumask_size()); + free_cpumask_var(mask); return cptab; + failed_mask: + free_cpumask_var(mask); failed: CERROR("Failed to setup CPU-partition-table with %d CPU-partitions, online HW nodes: %d, HW cpus: %d.\n", ncpt, num_online_nodes(), num_online_cpus()); - if (mask) - LIBCFS_FREE(mask, cpumask_size()); - if (cptab) cfs_cpt_table_free(cptab); @@ -830,7 +815,7 @@ cfs_cpt_table_create_pattern(char *pattern) int c; int i; - str = cfs_trimwhite(pattern); + str = strim(pattern); if (*str == 'n' || *str == 'N') { pattern = str + 1; if (*pattern != '\0') { @@ -882,7 +867,7 @@ cfs_cpt_table_create_pattern(char *pattern) high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1; - for (str = cfs_trimwhite(pattern), c = 0;; c++) { + for (str = strim(pattern), c = 0;; c++) { struct cfs_range_expr *range; struct cfs_expr_list *el; char *bracket = strchr(str, '['); @@ -917,7 +902,7 @@ cfs_cpt_table_create_pattern(char *pattern) goto failed; } - str = cfs_trimwhite(str + n); + str = strim(str + n); if (str != bracket) { CERROR("Invalid pattern %s\n", str); goto failed; @@ -957,7 +942,7 @@ cfs_cpt_table_create_pattern(char *pattern) goto failed; } - str = cfs_trimwhite(bracket + 1); + str = strim(bracket + 1); } return cptab; @@ -1013,8 +998,7 @@ cfs_cpu_fini(void) cpuhp_remove_state_nocalls(lustre_cpu_online); cpuhp_remove_state_nocalls(CPUHP_LUSTRE_CFS_DEAD); #endif - if (cpt_data.cpt_cpumask) - LIBCFS_FREE(cpt_data.cpt_cpumask, cpumask_size()); + free_cpumask_var(cpt_data.cpt_cpumask); } int @@ -1026,8 +1010,7 @@ cfs_cpu_init(void) memset(&cpt_data, 0, sizeof(cpt_data)); - LIBCFS_ALLOC(cpt_data.cpt_cpumask, cpumask_size()); - if (!cpt_data.cpt_cpumask) { + if (!zalloc_cpumask_var(&cpt_data.cpt_cpumask, GFP_NOFS)) { CERROR("Failed to allocate scratch buffer\n"); return -1; } diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c index b5746230ab31..ddf625669bff 100644 --- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c +++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c @@ -146,7 +146,7 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return -EINVAL; } - LIBCFS_ALLOC(*hdr_pp, hdr.ioc_len); + *hdr_pp = kvmalloc(hdr.ioc_len, GFP_KERNEL); if (!*hdr_pp) return -ENOMEM; @@ -164,7 +164,7 @@ int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp, return 0; free: - LIBCFS_FREE(*hdr_pp, hdr.ioc_len); + kvfree(*hdr_pp); return err; } diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c index 4ead55920e79..a03f924f1d7c 100644 --- a/drivers/staging/lustre/lnet/libcfs/module.c +++ b/drivers/staging/lustre/lnet/libcfs/module.c @@ -156,7 +156,7 @@ int libcfs_ioctl(unsigned long cmd, void __user *uparam) break; } } out: - LIBCFS_FREE(hdr, hdr->ioc_len); + kvfree(hdr); return err; } @@ -302,7 +302,7 @@ static int __proc_cpt_table(void *data, int write, LASSERT(cfs_cpt_table); while (1) { - LIBCFS_ALLOC(buf, len); + buf = kzalloc(len, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -311,7 +311,7 @@ static int __proc_cpt_table(void *data, int write, break; if (rc == -EFBIG) { - LIBCFS_FREE(buf, len); + kfree(buf); len <<= 1; continue; } @@ -325,8 +325,7 @@ static int __proc_cpt_table(void *data, int write, rc = cfs_trace_copyout_string(buffer, nob, buf + pos, NULL); out: - if (buf) - LIBCFS_FREE(buf, len); + kfree(buf); return rc; } @@ -548,33 +547,23 @@ static int libcfs_init(void) goto cleanup_cpu; } - rc = cfs_wi_startup(); - if (rc) { - CERROR("initialize workitem: error %d\n", rc); - goto cleanup_deregister; - } - - /* max to 4 threads, should be enough for rehash */ - rc = min(cfs_cpt_weight(cfs_cpt_table, CFS_CPT_ANY), 4); - rc = cfs_wi_sched_create("cfs_rh", cfs_cpt_table, CFS_CPT_ANY, - rc, &cfs_sched_rehash); - if (rc) { - CERROR("Startup workitem scheduler: error: %d\n", rc); + cfs_rehash_wq = alloc_workqueue("cfs_rh", WQ_SYSFS, 4); + if (!cfs_rehash_wq) { + CERROR("Failed to start rehash workqueue.\n"); + rc = -ENOMEM; goto cleanup_deregister; } rc = cfs_crypto_register(); if (rc) { CERROR("cfs_crypto_register: error %d\n", rc); - goto cleanup_wi; + goto cleanup_deregister; } lustre_insert_debugfs(lnet_table, lnet_debugfs_symlinks); CDEBUG(D_OTHER, "portals setup OK\n"); return 0; - cleanup_wi: - cfs_wi_shutdown(); cleanup_deregister: misc_deregister(&libcfs_dev); cleanup_cpu: @@ -590,13 +579,12 @@ static void libcfs_exit(void) lustre_remove_debugfs(); - if (cfs_sched_rehash) { - cfs_wi_sched_destroy(cfs_sched_rehash); - cfs_sched_rehash = NULL; + if (cfs_rehash_wq) { + destroy_workqueue(cfs_rehash_wq); + cfs_rehash_wq = NULL; } cfs_crypto_unregister(); - cfs_wi_shutdown(); misc_deregister(&libcfs_dev); diff --git a/drivers/staging/lustre/lnet/libcfs/prng.c b/drivers/staging/lustre/lnet/libcfs/prng.c deleted file mode 100644 index f47cf67a92e3..000000000000 --- a/drivers/staging/lustre/lnet/libcfs/prng.c +++ /dev/null @@ -1,137 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * libcfs/libcfs/prng.c - * - * concatenation of following two 16-bit multiply with carry generators - * x(n)=a*x(n-1)+carry mod 2^16 and y(n)=b*y(n-1)+carry mod 2^16, - * number and carry packed within the same 32 bit integer. - * algorithm recommended by Marsaglia - */ - -#include <linux/libcfs/libcfs.h> - -/* - * From: George Marsaglia <geo@stat.fsu.edu> - * Newsgroups: sci.math - * Subject: Re: A RANDOM NUMBER GENERATOR FOR C - * Date: Tue, 30 Sep 1997 05:29:35 -0700 - * - * You may replace the two constants 36969 and 18000 by any - * pair of distinct constants from this list: - * 18000 18030 18273 18513 18879 19074 19098 19164 19215 19584 - * 19599 19950 20088 20508 20544 20664 20814 20970 21153 21243 - * 21423 21723 21954 22125 22188 22293 22860 22938 22965 22974 - * 23109 23124 23163 23208 23508 23520 23553 23658 23865 24114 - * 24219 24660 24699 24864 24948 25023 25308 25443 26004 26088 - * 26154 26550 26679 26838 27183 27258 27753 27795 27810 27834 - * 27960 28320 28380 28689 28710 28794 28854 28959 28980 29013 - * 29379 29889 30135 30345 30459 30714 30903 30963 31059 31083 - * (or any other 16-bit constants k for which both k*2^16-1 - * and k*2^15-1 are prime) - */ - -#define RANDOM_CONST_A 18030 -#define RANDOM_CONST_B 29013 - -static unsigned int seed_x = 521288629; -static unsigned int seed_y = 362436069; - -/** - * cfs_rand - creates new seeds - * - * First it creates new seeds from the previous seeds. Then it generates a - * new pseudo random number for use. - * - * Returns a pseudo-random 32-bit integer - */ -unsigned int cfs_rand(void) -{ - seed_x = RANDOM_CONST_A * (seed_x & 65535) + (seed_x >> 16); - seed_y = RANDOM_CONST_B * (seed_y & 65535) + (seed_y >> 16); - - return ((seed_x << 16) + (seed_y & 65535)); -} -EXPORT_SYMBOL(cfs_rand); - -/** - * cfs_srand - sets the initial seed - * @seed1 : (seed_x) should have the most entropy in the low bits of the word - * @seed2 : (seed_y) should have the most entropy in the high bits of the word - * - * Replaces the original seeds with new values. Used to generate a new pseudo - * random numbers. - */ -void cfs_srand(unsigned int seed1, unsigned int seed2) -{ - if (seed1) - seed_x = seed1; /* use default seeds if parameter is 0 */ - if (seed2) - seed_y = seed2; -} -EXPORT_SYMBOL(cfs_srand); - -/** - * cfs_get_random_bytes - generate a bunch of random numbers - * @buf : buffer to fill with random numbers - * @size: size of passed in buffer - * - * Fills a buffer with random bytes - */ -void cfs_get_random_bytes(void *buf, int size) -{ - int *p = buf; - int rem, tmp; - - LASSERT(size >= 0); - - rem = min((int)((unsigned long)buf & (sizeof(int) - 1)), size); - if (rem) { - get_random_bytes(&tmp, sizeof(tmp)); - tmp ^= cfs_rand(); - memcpy(buf, &tmp, rem); - p = buf + rem; - size -= rem; - } - - while (size >= sizeof(int)) { - get_random_bytes(&tmp, sizeof(tmp)); - *p = cfs_rand() ^ tmp; - size -= sizeof(int); - p++; - } - buf = p; - if (size) { - get_random_bytes(&tmp, sizeof(tmp)); - tmp ^= cfs_rand(); - memcpy(buf, &tmp, size); - } -} -EXPORT_SYMBOL(cfs_get_random_bytes); diff --git a/drivers/staging/lustre/lnet/libcfs/tracefile.c b/drivers/staging/lustre/lnet/libcfs/tracefile.c index da2844f37edf..57913aae1d88 100644 --- a/drivers/staging/lustre/lnet/libcfs/tracefile.c +++ b/drivers/staging/lustre/lnet/libcfs/tracefile.c @@ -785,7 +785,7 @@ int cfs_trace_copyin_string(char *knl_buffer, int knl_buffer_nob, return -EFAULT; nob = strnlen(knl_buffer, usr_buffer_nob); - while (nob-- >= 0) /* strip trailing whitespace */ + while (--nob >= 0) /* strip trailing whitespace */ if (!isspace(knl_buffer[nob])) break; diff --git a/drivers/staging/lustre/lnet/libcfs/workitem.c b/drivers/staging/lustre/lnet/libcfs/workitem.c deleted file mode 100644 index 6a05d9bab8dc..000000000000 --- a/drivers/staging/lustre/lnet/libcfs/workitem.c +++ /dev/null @@ -1,466 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * GPL HEADER START - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 only, - * as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License version 2 for more details (a copy is included - * in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU General Public License - * version 2 along with this program; If not, see - * http://www.gnu.org/licenses/gpl-2.0.html - * - * GPL HEADER END - */ -/* - * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. - * Use is subject to license terms. - * - * Copyright (c) 2011, 2012, Intel Corporation. - */ -/* - * This file is part of Lustre, http://www.lustre.org/ - * Lustre is a trademark of Sun Microsystems, Inc. - * - * libcfs/libcfs/workitem.c - * - * Author: Isaac Huang <isaac@clusterfs.com> - * Liang Zhen <zhen.liang@sun.com> - */ - -#define DEBUG_SUBSYSTEM S_LNET - -#include <linux/libcfs/libcfs.h> - -#define CFS_WS_NAME_LEN 16 - -struct cfs_wi_sched { - /* chain on global list */ - struct list_head ws_list; - /** serialised workitems */ - spinlock_t ws_lock; - /** where schedulers sleep */ - wait_queue_head_t ws_waitq; - /** concurrent workitems */ - struct list_head ws_runq; - /** - * rescheduled running-workitems, a workitem can be rescheduled - * while running in wi_action(), but we don't to execute it again - * unless it returns from wi_action(), so we put it on ws_rerunq - * while rescheduling, and move it to runq after it returns - * from wi_action() - */ - struct list_head ws_rerunq; - /** CPT-table for this scheduler */ - struct cfs_cpt_table *ws_cptab; - /** CPT id for affinity */ - int ws_cpt; - /** number of scheduled workitems */ - int ws_nscheduled; - /** started scheduler thread, protected by cfs_wi_data::wi_glock */ - unsigned int ws_nthreads:30; - /** shutting down, protected by cfs_wi_data::wi_glock */ - unsigned int ws_stopping:1; - /** serialize starting thread, protected by cfs_wi_data::wi_glock */ - unsigned int ws_starting:1; - /** scheduler name */ - char ws_name[CFS_WS_NAME_LEN]; -}; - -static struct cfs_workitem_data { - /** serialize */ - spinlock_t wi_glock; - /** list of all schedulers */ - struct list_head wi_scheds; - /** WI module is initialized */ - int wi_init; - /** shutting down the whole WI module */ - int wi_stopping; -} cfs_wi_data; - -static inline int -cfs_wi_sched_cansleep(struct cfs_wi_sched *sched) -{ - spin_lock(&sched->ws_lock); - if (sched->ws_stopping) { - spin_unlock(&sched->ws_lock); - return 0; - } - - if (!list_empty(&sched->ws_runq)) { - spin_unlock(&sched->ws_lock); - return 0; - } - spin_unlock(&sched->ws_lock); - return 1; -} - -/* XXX: - * 0. it only works when called from wi->wi_action. - * 1. when it returns no one shall try to schedule the workitem. - */ -void -cfs_wi_exit(struct cfs_wi_sched *sched, struct cfs_workitem *wi) -{ - LASSERT(!in_interrupt()); /* because we use plain spinlock */ - LASSERT(!sched->ws_stopping); - - spin_lock(&sched->ws_lock); - - LASSERT(wi->wi_running); - if (wi->wi_scheduled) { /* cancel pending schedules */ - LASSERT(!list_empty(&wi->wi_list)); - list_del_init(&wi->wi_list); - - LASSERT(sched->ws_nscheduled > 0); - sched->ws_nscheduled--; - } - - LASSERT(list_empty(&wi->wi_list)); - - wi->wi_scheduled = 1; /* LBUG future schedule attempts */ - spin_unlock(&sched->ws_lock); -} -EXPORT_SYMBOL(cfs_wi_exit); - -/** - * cancel schedule request of workitem \a wi - */ -int -cfs_wi_deschedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi) -{ - int rc; - - LASSERT(!in_interrupt()); /* because we use plain spinlock */ - LASSERT(!sched->ws_stopping); - - /* - * return 0 if it's running already, otherwise return 1, which - * means the workitem will not be scheduled and will not have - * any race with wi_action. - */ - spin_lock(&sched->ws_lock); - - rc = !(wi->wi_running); - - if (wi->wi_scheduled) { /* cancel pending schedules */ - LASSERT(!list_empty(&wi->wi_list)); - list_del_init(&wi->wi_list); - - LASSERT(sched->ws_nscheduled > 0); - sched->ws_nscheduled--; - - wi->wi_scheduled = 0; - } - - LASSERT(list_empty(&wi->wi_list)); - - spin_unlock(&sched->ws_lock); - return rc; -} -EXPORT_SYMBOL(cfs_wi_deschedule); - -/* - * Workitem scheduled with (serial == 1) is strictly serialised not only with - * itself, but also with others scheduled this way. - * - * Now there's only one static serialised queue, but in the future more might - * be added, and even dynamic creation of serialised queues might be supported. - */ -void -cfs_wi_schedule(struct cfs_wi_sched *sched, struct cfs_workitem *wi) -{ - LASSERT(!in_interrupt()); /* because we use plain spinlock */ - LASSERT(!sched->ws_stopping); - - spin_lock(&sched->ws_lock); - - if (!wi->wi_scheduled) { - LASSERT(list_empty(&wi->wi_list)); - - wi->wi_scheduled = 1; - sched->ws_nscheduled++; - if (!wi->wi_running) { - list_add_tail(&wi->wi_list, &sched->ws_runq); - wake_up(&sched->ws_waitq); - } else { - list_add(&wi->wi_list, &sched->ws_rerunq); - } - } - - LASSERT(!list_empty(&wi->wi_list)); - spin_unlock(&sched->ws_lock); -} -EXPORT_SYMBOL(cfs_wi_schedule); - -static int cfs_wi_scheduler(void *arg) -{ - struct cfs_wi_sched *sched = (struct cfs_wi_sched *)arg; - - cfs_block_allsigs(); - - /* CPT affinity scheduler? */ - if (sched->ws_cptab) - if (cfs_cpt_bind(sched->ws_cptab, sched->ws_cpt)) - CWARN("Unable to bind %s on CPU partition %d\n", - sched->ws_name, sched->ws_cpt); - - spin_lock(&cfs_wi_data.wi_glock); - - LASSERT(sched->ws_starting == 1); - sched->ws_starting--; - sched->ws_nthreads++; - - spin_unlock(&cfs_wi_data.wi_glock); - - spin_lock(&sched->ws_lock); - - while (!sched->ws_stopping) { - int nloops = 0; - int rc; - struct cfs_workitem *wi; - - while (!list_empty(&sched->ws_runq) && - nloops < CFS_WI_RESCHED) { - wi = list_entry(sched->ws_runq.next, - struct cfs_workitem, wi_list); - LASSERT(wi->wi_scheduled && !wi->wi_running); - - list_del_init(&wi->wi_list); - - LASSERT(sched->ws_nscheduled > 0); - sched->ws_nscheduled--; - - wi->wi_running = 1; - wi->wi_scheduled = 0; - - spin_unlock(&sched->ws_lock); - nloops++; - - rc = (*wi->wi_action)(wi); - - spin_lock(&sched->ws_lock); - if (rc) /* WI should be dead, even be freed! */ - continue; - - wi->wi_running = 0; - if (list_empty(&wi->wi_list)) - continue; - - LASSERT(wi->wi_scheduled); - /* wi is rescheduled, should be on rerunq now, we - * move it to runq so it can run action now - */ - list_move_tail(&wi->wi_list, &sched->ws_runq); - } - - if (!list_empty(&sched->ws_runq)) { - spin_unlock(&sched->ws_lock); - /* don't sleep because some workitems still - * expect me to come back soon - */ - cond_resched(); - spin_lock(&sched->ws_lock); - continue; - } - - spin_unlock(&sched->ws_lock); - rc = wait_event_interruptible_exclusive(sched->ws_waitq, - !cfs_wi_sched_cansleep(sched)); - spin_lock(&sched->ws_lock); - } - - spin_unlock(&sched->ws_lock); - - spin_lock(&cfs_wi_data.wi_glock); - sched->ws_nthreads--; - spin_unlock(&cfs_wi_data.wi_glock); - - return 0; -} - -void -cfs_wi_sched_destroy(struct cfs_wi_sched *sched) -{ - int i; - - LASSERT(cfs_wi_data.wi_init); - LASSERT(!cfs_wi_data.wi_stopping); - - spin_lock(&cfs_wi_data.wi_glock); - if (sched->ws_stopping) { - CDEBUG(D_INFO, "%s is in progress of stopping\n", - sched->ws_name); - spin_unlock(&cfs_wi_data.wi_glock); - return; - } - - LASSERT(!list_empty(&sched->ws_list)); - sched->ws_stopping = 1; - - spin_unlock(&cfs_wi_data.wi_glock); - - i = 2; - wake_up_all(&sched->ws_waitq); - - spin_lock(&cfs_wi_data.wi_glock); - while (sched->ws_nthreads > 0) { - CDEBUG(is_power_of_2(++i) ? D_WARNING : D_NET, - "waiting for %d threads of WI sched[%s] to terminate\n", - sched->ws_nthreads, sched->ws_name); - - spin_unlock(&cfs_wi_data.wi_glock); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(cfs_time_seconds(1) / 20); - spin_lock(&cfs_wi_data.wi_glock); - } - - list_del(&sched->ws_list); - - spin_unlock(&cfs_wi_data.wi_glock); - LASSERT(!sched->ws_nscheduled); - - LIBCFS_FREE(sched, sizeof(*sched)); -} -EXPORT_SYMBOL(cfs_wi_sched_destroy); - -int -cfs_wi_sched_create(char *name, struct cfs_cpt_table *cptab, - int cpt, int nthrs, struct cfs_wi_sched **sched_pp) -{ - struct cfs_wi_sched *sched; - int rc; - - LASSERT(cfs_wi_data.wi_init); - LASSERT(!cfs_wi_data.wi_stopping); - LASSERT(!cptab || cpt == CFS_CPT_ANY || - (cpt >= 0 && cpt < cfs_cpt_number(cptab))); - - LIBCFS_ALLOC(sched, sizeof(*sched)); - if (!sched) - return -ENOMEM; - - if (strlen(name) > sizeof(sched->ws_name) - 1) { - LIBCFS_FREE(sched, sizeof(*sched)); - return -E2BIG; - } - strncpy(sched->ws_name, name, sizeof(sched->ws_name)); - - sched->ws_cptab = cptab; - sched->ws_cpt = cpt; - - spin_lock_init(&sched->ws_lock); - init_waitqueue_head(&sched->ws_waitq); - INIT_LIST_HEAD(&sched->ws_runq); - INIT_LIST_HEAD(&sched->ws_rerunq); - INIT_LIST_HEAD(&sched->ws_list); - - rc = 0; - while (nthrs > 0) { - char name[16]; - struct task_struct *task; - - spin_lock(&cfs_wi_data.wi_glock); - while (sched->ws_starting > 0) { - spin_unlock(&cfs_wi_data.wi_glock); - schedule(); - spin_lock(&cfs_wi_data.wi_glock); - } - - sched->ws_starting++; - spin_unlock(&cfs_wi_data.wi_glock); - - if (sched->ws_cptab && sched->ws_cpt >= 0) { - snprintf(name, sizeof(name), "%s_%02d_%02u", - sched->ws_name, sched->ws_cpt, - sched->ws_nthreads); - } else { - snprintf(name, sizeof(name), "%s_%02u", - sched->ws_name, sched->ws_nthreads); - } - - task = kthread_run(cfs_wi_scheduler, sched, "%s", name); - if (!IS_ERR(task)) { - nthrs--; - continue; - } - rc = PTR_ERR(task); - - CERROR("Failed to create thread for WI scheduler %s: %d\n", - name, rc); - - spin_lock(&cfs_wi_data.wi_glock); - - /* make up for cfs_wi_sched_destroy */ - list_add(&sched->ws_list, &cfs_wi_data.wi_scheds); - sched->ws_starting--; - - spin_unlock(&cfs_wi_data.wi_glock); - - cfs_wi_sched_destroy(sched); - return rc; - } - spin_lock(&cfs_wi_data.wi_glock); - list_add(&sched->ws_list, &cfs_wi_data.wi_scheds); - spin_unlock(&cfs_wi_data.wi_glock); - - *sched_pp = sched; - return 0; -} -EXPORT_SYMBOL(cfs_wi_sched_create); - -int -cfs_wi_startup(void) -{ - memset(&cfs_wi_data, 0, sizeof(cfs_wi_data)); - - spin_lock_init(&cfs_wi_data.wi_glock); - INIT_LIST_HEAD(&cfs_wi_data.wi_scheds); - cfs_wi_data.wi_init = 1; - - return 0; -} - -void -cfs_wi_shutdown(void) -{ - struct cfs_wi_sched *sched; - struct cfs_wi_sched *temp; - - spin_lock(&cfs_wi_data.wi_glock); - cfs_wi_data.wi_stopping = 1; - spin_unlock(&cfs_wi_data.wi_glock); - - /* nobody should contend on this list */ - list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) { - sched->ws_stopping = 1; - wake_up_all(&sched->ws_waitq); - } - - list_for_each_entry(sched, &cfs_wi_data.wi_scheds, ws_list) { - spin_lock(&cfs_wi_data.wi_glock); - - while (sched->ws_nthreads) { - spin_unlock(&cfs_wi_data.wi_glock); - set_current_state(TASK_UNINTERRUPTIBLE); - schedule_timeout(cfs_time_seconds(1) / 20); - spin_lock(&cfs_wi_data.wi_glock); - } - spin_unlock(&cfs_wi_data.wi_glock); - } - list_for_each_entry_safe(sched, temp, &cfs_wi_data.wi_scheds, ws_list) { - list_del(&sched->ws_list); - LIBCFS_FREE(sched, sizeof(*sched)); - } - - cfs_wi_data.wi_stopping = 0; - cfs_wi_data.wi_init = 0; -} diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index 7caff290c146..2c7abad57104 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -108,7 +108,8 @@ lnet_create_remote_nets_table(void) LASSERT(!the_lnet.ln_remote_nets_hash); LASSERT(the_lnet.ln_remote_nets_hbits > 0); - LIBCFS_ALLOC(hash, LNET_REMOTE_NETS_HASH_SIZE * sizeof(*hash)); + hash = kvmalloc_array(LNET_REMOTE_NETS_HASH_SIZE, sizeof(*hash), + GFP_KERNEL); if (!hash) { CERROR("Failed to create remote nets hash table\n"); return -ENOMEM; @@ -131,9 +132,7 @@ lnet_destroy_remote_nets_table(void) for (i = 0; i < LNET_REMOTE_NETS_HASH_SIZE; i++) LASSERT(list_empty(&the_lnet.ln_remote_nets_hash[i])); - LIBCFS_FREE(the_lnet.ln_remote_nets_hash, - LNET_REMOTE_NETS_HASH_SIZE * - sizeof(the_lnet.ln_remote_nets_hash[0])); + kvfree(the_lnet.ln_remote_nets_hash); the_lnet.ln_remote_nets_hash = NULL; } @@ -384,10 +383,10 @@ lnet_res_container_cleanup(struct lnet_res_container *rec) list_del_init(e); if (rec->rec_type == LNET_COOKIE_TYPE_EQ) { - lnet_eq_free(list_entry(e, struct lnet_eq, eq_list)); + kfree(list_entry(e, struct lnet_eq, eq_list)); } else if (rec->rec_type == LNET_COOKIE_TYPE_MD) { - lnet_md_free(list_entry(e, struct lnet_libmd, md_list)); + kfree(list_entry(e, struct lnet_libmd, md_list)); } else { /* NB: Active MEs should be attached on portals */ LBUG(); @@ -405,11 +404,8 @@ lnet_res_container_cleanup(struct lnet_res_container *rec) count, lnet_res_type2str(rec->rec_type)); } - if (rec->rec_lh_hash) { - LIBCFS_FREE(rec->rec_lh_hash, - LNET_LH_HASH_SIZE * sizeof(rec->rec_lh_hash[0])); - rec->rec_lh_hash = NULL; - } + kfree(rec->rec_lh_hash); + rec->rec_lh_hash = NULL; rec->rec_type = 0; /* mark it as finalized */ } @@ -427,8 +423,8 @@ lnet_res_container_setup(struct lnet_res_container *rec, int cpt, int type) rec->rec_lh_cookie = (cpt << LNET_COOKIE_TYPE_BITS) | type; /* Arbitrary choice of hash table size */ - LIBCFS_CPT_ALLOC(rec->rec_lh_hash, lnet_cpt_table(), cpt, - LNET_LH_HASH_SIZE * sizeof(rec->rec_lh_hash[0])); + rec->rec_lh_hash = kvmalloc_cpt(LNET_LH_HASH_SIZE * sizeof(rec->rec_lh_hash[0]), + GFP_KERNEL, cpt); if (!rec->rec_lh_hash) { rc = -ENOMEM; goto out; @@ -831,7 +827,7 @@ lnet_ping_info_create(int num_ni) unsigned int infosz; infosz = offsetof(struct lnet_ping_info, pi_ni[num_ni]); - LIBCFS_ALLOC(ping_info, infosz); + ping_info = kvzalloc(infosz, GFP_KERNEL); if (!ping_info) { CERROR("Can't allocate ping info[%d]\n", num_ni); return NULL; @@ -864,9 +860,7 @@ lnet_get_ni_count(void) static inline void lnet_ping_info_free(struct lnet_ping_info *pinfo) { - LIBCFS_FREE(pinfo, - offsetof(struct lnet_ping_info, - pi_ni[pinfo->pi_nnis])); + kvfree(pinfo); } static void @@ -1280,8 +1274,8 @@ lnet_startup_lndni(struct lnet_ni *ni, struct lnet_ioctl_config_data *conf) lnd_tunables = (struct lnet_ioctl_config_lnd_tunables *)conf->cfg_bulk; if (lnd_tunables) { - LIBCFS_ALLOC(ni->ni_lnd_tunables, - sizeof(*ni->ni_lnd_tunables)); + ni->ni_lnd_tunables = kzalloc(sizeof(*ni->ni_lnd_tunables), + GFP_NOFS); if (!ni->ni_lnd_tunables) { mutex_unlock(&the_lnet.ln_lnd_mutex); rc = -ENOMEM; @@ -2160,7 +2154,7 @@ static int lnet_ping(struct lnet_process_id id, int timeout_ms, if (id.pid == LNET_PID_ANY) id.pid = LNET_PID_LUSTRE; - LIBCFS_ALLOC(info, infosz); + info = kzalloc(infosz, GFP_KERNEL); if (!info) return -ENOMEM; @@ -2310,6 +2304,6 @@ static int lnet_ping(struct lnet_process_id id, int timeout_ms, LASSERT(!rc2); out_0: - LIBCFS_FREE(info, infosz); + kfree(info); return rc; } diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c index 0cf0f4f99435..0aea268a4f1c 100644 --- a/drivers/staging/lustre/lnet/lnet/config.c +++ b/drivers/staging/lustre/lnet/lnet/config.c @@ -106,19 +106,16 @@ lnet_ni_free(struct lnet_ni *ni) if (ni->ni_cpts) cfs_expr_list_values_free(ni->ni_cpts, ni->ni_ncpts); - if (ni->ni_lnd_tunables) - LIBCFS_FREE(ni->ni_lnd_tunables, sizeof(*ni->ni_lnd_tunables)); + kfree(ni->ni_lnd_tunables); - for (i = 0; i < LNET_MAX_INTERFACES && ni->ni_interfaces[i]; i++) { - LIBCFS_FREE(ni->ni_interfaces[i], - strlen(ni->ni_interfaces[i]) + 1); - } + for (i = 0; i < LNET_MAX_INTERFACES && ni->ni_interfaces[i]; i++) + kfree(ni->ni_interfaces[i]); /* release reference to net namespace */ if (ni->ni_net_ns) put_net(ni->ni_net_ns); - LIBCFS_FREE(ni, sizeof(*ni)); + kfree(ni); } struct lnet_ni * @@ -135,7 +132,7 @@ lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist) return NULL; } - LIBCFS_ALLOC(ni, sizeof(*ni)); + ni = kzalloc(sizeof(*ni), GFP_NOFS); if (!ni) { CERROR("Out of memory creating network %s\n", libcfs_net2str(net)); @@ -170,7 +167,7 @@ lnet_ni_alloc(__u32 net, struct cfs_expr_list *el, struct list_head *nilist) LASSERT(rc <= LNET_CPT_NUMBER); if (rc == LNET_CPT_NUMBER) { - LIBCFS_FREE(ni->ni_cpts, rc * sizeof(ni->ni_cpts[0])); + cfs_expr_list_values_free(ni->ni_cpts, LNET_CPT_NUMBER); ni->ni_cpts = NULL; } @@ -198,7 +195,6 @@ int lnet_parse_networks(struct list_head *nilist, char *networks) { struct cfs_expr_list *el = NULL; - int tokensize; char *tokens; char *str; char *tmp; @@ -219,15 +215,12 @@ lnet_parse_networks(struct list_head *nilist, char *networks) return -EINVAL; } - tokensize = strlen(networks) + 1; - - LIBCFS_ALLOC(tokens, tokensize); + tokens = kstrdup(networks, GFP_KERNEL); if (!tokens) { CERROR("Can't allocate net tokens\n"); return -ENOMEM; } - memcpy(tokens, networks, tokensize); tmp = tokens; str = tokens; @@ -275,7 +268,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) if (comma) *comma++ = 0; - net = libcfs_str2net(cfs_trimwhite(str)); + net = libcfs_str2net(strim(str)); if (net == LNET_NIDNET(LNET_NID_ANY)) { LCONSOLE_ERROR_MSG(0x113, @@ -298,7 +291,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) } *bracket = 0; - net = libcfs_str2net(cfs_trimwhite(str)); + net = libcfs_str2net(strim(str)); if (net == LNET_NIDNET(LNET_NID_ANY)) { tmp = str; goto failed_syntax; @@ -328,7 +321,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) if (comma) *comma++ = 0; - iface = cfs_trimwhite(iface); + iface = strim(iface); if (!*iface) { tmp = iface; goto failed_syntax; @@ -349,14 +342,11 @@ lnet_parse_networks(struct list_head *nilist, char *networks) * The newly allocated ni_interfaces[] can be * freed when freeing the NI */ - LIBCFS_ALLOC(ni->ni_interfaces[niface], - strlen(iface) + 1); + ni->ni_interfaces[niface] = kstrdup(iface, GFP_KERNEL); if (!ni->ni_interfaces[niface]) { CERROR("Can't allocate net interface name\n"); goto failed; } - strncpy(ni->ni_interfaces[niface], iface, - strlen(iface)); niface++; iface = comma; } while (iface); @@ -365,7 +355,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) comma = strchr(bracket + 1, ','); if (comma) { *comma = 0; - str = cfs_trimwhite(str); + str = strim(str); if (*str) { tmp = str; goto failed_syntax; @@ -374,7 +364,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) continue; } - str = cfs_trimwhite(str); + str = strim(str); if (*str) { tmp = str; goto failed_syntax; @@ -384,7 +374,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) list_for_each(temp_node, nilist) nnets++; - LIBCFS_FREE(tokens, tokensize); + kfree(tokens); return nnets; failed_syntax: @@ -400,7 +390,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks) if (el) cfs_expr_list_free(el); - LIBCFS_FREE(tokens, tokensize); + kfree(tokens); return -EINVAL; } @@ -424,7 +414,7 @@ lnet_new_text_buf(int str_len) return NULL; } - LIBCFS_ALLOC(ltb, nob); + ltb = kzalloc(nob, GFP_KERNEL); if (!ltb) return NULL; @@ -438,7 +428,7 @@ static void lnet_free_text_buf(struct lnet_text_buf *ltb) { lnet_tbnob -= ltb->ltb_size; - LIBCFS_FREE(ltb, ltb->ltb_size); + kfree(ltb); } static void @@ -1156,7 +1146,7 @@ lnet_ipaddr_enumerate(__u32 **ipaddrsp) if (nif <= 0) return nif; - LIBCFS_ALLOC(ipaddrs, nif * sizeof(*ipaddrs)); + ipaddrs = kcalloc(nif, sizeof(*ipaddrs), GFP_KERNEL); if (!ipaddrs) { CERROR("Can't allocate ipaddrs[%d]\n", nif); lnet_ipif_free_enumeration(ifnames, nif); @@ -1189,7 +1179,8 @@ lnet_ipaddr_enumerate(__u32 **ipaddrsp) *ipaddrsp = ipaddrs; } else { if (nip > 0) { - LIBCFS_ALLOC(ipaddrs2, nip * sizeof(*ipaddrs2)); + ipaddrs2 = kcalloc(nip, sizeof(*ipaddrs2), + GFP_KERNEL); if (!ipaddrs2) { CERROR("Can't allocate ipaddrs[%d]\n", nip); nip = -ENOMEM; @@ -1200,7 +1191,7 @@ lnet_ipaddr_enumerate(__u32 **ipaddrsp) rc = nip; } } - LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs)); + kfree(ipaddrs); } return nip; } @@ -1226,7 +1217,7 @@ lnet_parse_ip2nets(char **networksp, char *ip2nets) } rc = lnet_match_networks(networksp, ip2nets, ipaddrs, nip); - LIBCFS_FREE(ipaddrs, nip * sizeof(*ipaddrs)); + kfree(ipaddrs); if (rc < 0) { LCONSOLE_ERROR_MSG(0x119, "Error %d parsing ip2nets\n", rc); diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c index daf744277003..a173b69e2f92 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-eq.c +++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c @@ -90,12 +90,13 @@ LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback, if (!count && callback == LNET_EQ_HANDLER_NONE) return -EINVAL; - eq = lnet_eq_alloc(); + eq = kzalloc(sizeof(*eq), GFP_NOFS); if (!eq) return -ENOMEM; if (count) { - LIBCFS_ALLOC(eq->eq_events, count * sizeof(struct lnet_event)); + eq->eq_events = kvmalloc_array(count, sizeof(struct lnet_event), + GFP_KERNEL | __GFP_ZERO); if (!eq->eq_events) goto failed; /* @@ -132,13 +133,12 @@ LNetEQAlloc(unsigned int count, lnet_eq_handler_t callback, return 0; failed: - if (eq->eq_events) - LIBCFS_FREE(eq->eq_events, count * sizeof(struct lnet_event)); + kvfree(eq->eq_events); if (eq->eq_refs) cfs_percpt_free(eq->eq_refs); - lnet_eq_free(eq); + kfree(eq); return -ENOMEM; } EXPORT_SYMBOL(LNetEQAlloc); @@ -197,13 +197,12 @@ LNetEQFree(struct lnet_handle_eq eqh) lnet_res_lh_invalidate(&eq->eq_lh); list_del(&eq->eq_list); - lnet_eq_free(eq); + kfree(eq); out: lnet_eq_wait_unlock(); lnet_res_unlock(LNET_LOCK_EX); - if (events) - LIBCFS_FREE(events, size * sizeof(struct lnet_event)); + kvfree(events); if (refs) cfs_percpt_free(refs); diff --git a/drivers/staging/lustre/lnet/lnet/lib-md.c b/drivers/staging/lustre/lnet/lnet/lib-md.c index ac5b9593d597..8a22514aaf71 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-md.c +++ b/drivers/staging/lustre/lnet/lnet/lib-md.c @@ -81,7 +81,7 @@ lnet_md_unlink(struct lnet_libmd *md) LASSERT(!list_empty(&md->md_list)); list_del_init(&md->md_list); - lnet_md_free(md); + kfree(md); } static int @@ -173,7 +173,7 @@ lnet_md_link(struct lnet_libmd *md, struct lnet_handle_eq eq_handle, int cpt) /* * NB we are passed an allocated, but inactive md. * if we return success, caller may lnet_md_unlink() it. - * otherwise caller may only lnet_md_free() it. + * otherwise caller may only kfree() it. */ /* * This implementation doesn't know how to create START events or @@ -329,7 +329,7 @@ LNetMDAttach(struct lnet_handle_me meh, struct lnet_md umd, out_unlock: lnet_res_unlock(cpt); out_free: - lnet_md_free(md); + kfree(md); return rc; } EXPORT_SYMBOL(LNetMDAttach); @@ -390,7 +390,7 @@ LNetMDBind(struct lnet_md umd, enum lnet_unlink unlink, out_unlock: lnet_res_unlock(cpt); out_free: - lnet_md_free(md); + kfree(md); return rc; } diff --git a/drivers/staging/lustre/lnet/lnet/lib-me.c b/drivers/staging/lustre/lnet/lnet/lib-me.c index dd5d3cf6d3e2..672e37bdd045 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-me.c +++ b/drivers/staging/lustre/lnet/lnet/lib-me.c @@ -90,7 +90,7 @@ LNetMEAttach(unsigned int portal, if (!mtable) /* can't match portal type */ return -EPERM; - me = lnet_me_alloc(); + me = kzalloc(sizeof(*me), GFP_NOFS); if (!me) return -ENOMEM; @@ -157,7 +157,7 @@ LNetMEInsert(struct lnet_handle_me current_meh, if (pos == LNET_INS_LOCAL) return -EPERM; - new_me = lnet_me_alloc(); + new_me = kzalloc(sizeof(*new_me), GFP_NOFS); if (!new_me) return -ENOMEM; @@ -167,7 +167,7 @@ LNetMEInsert(struct lnet_handle_me current_meh, current_me = lnet_handle2me(¤t_meh); if (!current_me) { - lnet_me_free(new_me); + kfree(new_me); lnet_res_unlock(cpt); return -ENOENT; @@ -178,7 +178,7 @@ LNetMEInsert(struct lnet_handle_me current_meh, ptl = the_lnet.ln_portals[current_me->me_portal]; if (lnet_ptl_is_unique(ptl)) { /* nosense to insertion on unique portal */ - lnet_me_free(new_me); + kfree(new_me); lnet_res_unlock(cpt); return -EPERM; } @@ -270,5 +270,5 @@ lnet_me_unlink(struct lnet_me *me) } lnet_res_lh_invalidate(&me->me_lh); - lnet_me_free(me); + kfree(me); } diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c index 68d16ffec980..c673037dbce4 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-move.c +++ b/drivers/staging/lustre/lnet/lnet/lib-move.c @@ -57,7 +57,7 @@ lnet_fail_nid(lnet_nid_t nid, unsigned int threshold) /* NB: use lnet_net_lock(0) to serialize operations on test peers */ if (threshold) { /* Adding a new entry */ - LIBCFS_ALLOC(tp, sizeof(*tp)); + tp = kzalloc(sizeof(*tp), GFP_NOFS); if (!tp) return -ENOMEM; @@ -90,7 +90,7 @@ lnet_fail_nid(lnet_nid_t nid, unsigned int threshold) list_for_each_entry_safe(tp, temp, &cull, tp_list) { list_del(&tp->tp_list); - LIBCFS_FREE(tp, sizeof(*tp)); + kfree(tp); } return 0; } @@ -149,7 +149,7 @@ fail_peer(lnet_nid_t nid, int outgoing) list_for_each_entry_safe(tp, temp, &cull, tp_list) { list_del(&tp->tp_list); - LIBCFS_FREE(tp, sizeof(*tp)); + kfree(tp); } return fail; @@ -1769,7 +1769,7 @@ lnet_parse(struct lnet_ni *ni, struct lnet_hdr *hdr, lnet_nid_t from_nid, goto drop; } - msg = lnet_msg_alloc(); + msg = kzalloc(sizeof(*msg), GFP_NOFS); if (!msg) { CERROR("%s, src %s: Dropping %s (out of memory)\n", libcfs_nid2str(from_nid), libcfs_nid2str(src_nid), @@ -1777,7 +1777,7 @@ lnet_parse(struct lnet_ni *ni, struct lnet_hdr *hdr, lnet_nid_t from_nid, goto drop; } - /* msg zeroed in lnet_msg_alloc; + /* msg zeroed by kzalloc() * i.e. flags all clear, pointers NULL etc */ msg->msg_type = type; @@ -1812,7 +1812,7 @@ lnet_parse(struct lnet_ni *ni, struct lnet_hdr *hdr, lnet_nid_t from_nid, CERROR("%s, src %s: Dropping %s (error %d looking up sender)\n", libcfs_nid2str(from_nid), libcfs_nid2str(src_nid), lnet_msgtyp2str(type), rc); - lnet_msg_free(msg); + kfree(msg); if (rc == -ESHUTDOWN) /* We are shutting down. Don't do anything more */ return 0; @@ -2010,7 +2010,7 @@ LNetPut(lnet_nid_t self, struct lnet_handle_md mdh, enum lnet_ack_req ack, return -EIO; } - msg = lnet_msg_alloc(); + msg = kzalloc(sizeof(*msg), GFP_NOFS); if (!msg) { CERROR("Dropping PUT to %s: ENOMEM on struct lnet_msg\n", libcfs_id2str(target)); @@ -2031,7 +2031,7 @@ LNetPut(lnet_nid_t self, struct lnet_handle_md mdh, enum lnet_ack_req ack, md->md_me->me_portal); lnet_res_unlock(cpt); - lnet_msg_free(msg); + kfree(msg); return -ENOENT; } @@ -2086,7 +2086,7 @@ lnet_create_reply_msg(struct lnet_ni *ni, struct lnet_msg *getmsg) * CAVEAT EMPTOR: 'getmsg' is the original GET, which is freed when * lnet_finalize() is called on it, so the LND must call this first */ - struct lnet_msg *msg = lnet_msg_alloc(); + struct lnet_msg *msg = kzalloc(sizeof(*msg), GFP_NOFS); struct lnet_libmd *getmd = getmsg->msg_md; struct lnet_process_id peer_id = getmsg->msg_target; int cpt; @@ -2146,8 +2146,7 @@ lnet_create_reply_msg(struct lnet_ni *ni, struct lnet_msg *getmsg) the_lnet.ln_counters[cpt]->drop_length += getmd->md_length; lnet_net_unlock(cpt); - if (msg) - lnet_msg_free(msg); + kfree(msg); return NULL; } @@ -2215,7 +2214,7 @@ LNetGet(lnet_nid_t self, struct lnet_handle_md mdh, return -EIO; } - msg = lnet_msg_alloc(); + msg = kzalloc(sizeof(*msg), GFP_NOFS); if (!msg) { CERROR("Dropping GET to %s: ENOMEM on struct lnet_msg\n", libcfs_id2str(target)); @@ -2236,7 +2235,7 @@ LNetGet(lnet_nid_t self, struct lnet_handle_md mdh, lnet_res_unlock(cpt); - lnet_msg_free(msg); + kfree(msg); return -ENOENT; } diff --git a/drivers/staging/lustre/lnet/lnet/lib-msg.c b/drivers/staging/lustre/lnet/lnet/lib-msg.c index c72ef05b2420..0091273c04b9 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-msg.c +++ b/drivers/staging/lustre/lnet/lnet/lib-msg.c @@ -433,7 +433,7 @@ lnet_complete_msg_locked(struct lnet_msg *msg, int cpt) } lnet_msg_decommit(msg, cpt, status); - lnet_msg_free(msg); + kfree(msg); return 0; } @@ -466,7 +466,7 @@ lnet_finalize(struct lnet_ni *ni, struct lnet_msg *msg, int status) if (!msg->msg_tx_committed && !msg->msg_rx_committed) { /* not committed to network yet */ LASSERT(!msg->msg_onactivelist); - lnet_msg_free(msg); + kfree(msg); return; } @@ -546,19 +546,15 @@ lnet_msg_container_cleanup(struct lnet_msg_container *container) LASSERT(msg->msg_onactivelist); msg->msg_onactivelist = 0; list_del(&msg->msg_activelist); - lnet_msg_free(msg); + kfree(msg); count++; } if (count > 0) CERROR("%d active msg on exit\n", count); - if (container->msc_finalizers) { - LIBCFS_FREE(container->msc_finalizers, - container->msc_nfinalizers * - sizeof(*container->msc_finalizers)); - container->msc_finalizers = NULL; - } + kvfree(container->msc_finalizers); + container->msc_finalizers = NULL; container->msc_init = 0; } @@ -573,9 +569,9 @@ lnet_msg_container_setup(struct lnet_msg_container *container, int cpt) /* number of CPUs */ container->msc_nfinalizers = cfs_cpt_weight(lnet_cpt_table(), cpt); - LIBCFS_CPT_ALLOC(container->msc_finalizers, lnet_cpt_table(), cpt, - container->msc_nfinalizers * - sizeof(*container->msc_finalizers)); + container->msc_finalizers = kvzalloc_cpt(container->msc_nfinalizers * + sizeof(*container->msc_finalizers), + GFP_KERNEL, cpt); if (!container->msc_finalizers) { CERROR("Failed to allocate message finalizers\n"); diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c index 8ae93bf6fd1b..471f2f6c86f4 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c +++ b/drivers/staging/lustre/lnet/lnet/lib-ptl.c @@ -771,11 +771,11 @@ lnet_ptl_cleanup(struct lnet_portal *ptl) struct lnet_me, me_list); CERROR("Active ME %p on exit\n", me); list_del(&me->me_list); - lnet_me_free(me); + kfree(me); } } /* the extra entry is for MEs with ignore bits */ - LIBCFS_FREE(mhash, sizeof(*mhash) * (LNET_MT_HASH_SIZE + 1)); + kvfree(mhash); } cfs_percpt_free(ptl->ptl_mtables); @@ -803,8 +803,8 @@ lnet_ptl_setup(struct lnet_portal *ptl, int index) spin_lock_init(&ptl->ptl_lock); cfs_percpt_for_each(mtable, i, ptl->ptl_mtables) { /* the extra entry is for MEs with ignore bits */ - LIBCFS_CPT_ALLOC(mhash, lnet_cpt_table(), i, - sizeof(*mhash) * (LNET_MT_HASH_SIZE + 1)); + mhash = kvzalloc_cpt(sizeof(*mhash) * (LNET_MT_HASH_SIZE + 1), + GFP_KERNEL, i); if (!mhash) { CERROR("Failed to create match hash for portal %d\n", index); diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c index ed46aaca0ba3..ce93806eefca 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-socket.c +++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c @@ -170,7 +170,7 @@ lnet_ipif_enumerate(char ***namesp) nalloc); } - LIBCFS_ALLOC(ifr, nalloc * sizeof(*ifr)); + ifr = kzalloc(nalloc * sizeof(*ifr), GFP_KERNEL); if (!ifr) { CERROR("ENOMEM enumerating up to %d interfaces\n", nalloc); @@ -195,14 +195,14 @@ lnet_ipif_enumerate(char ***namesp) if (nfound < nalloc || toobig) break; - LIBCFS_FREE(ifr, nalloc * sizeof(*ifr)); + kfree(ifr); nalloc *= 2; } if (!nfound) goto out1; - LIBCFS_ALLOC(names, nfound * sizeof(*names)); + names = kzalloc(nfound * sizeof(*names), GFP_KERNEL); if (!names) { rc = -ENOMEM; goto out1; @@ -218,7 +218,7 @@ lnet_ipif_enumerate(char ***namesp) goto out2; } - LIBCFS_ALLOC(names[i], IFNAMSIZ); + names[i] = kmalloc(IFNAMSIZ, GFP_KERNEL); if (!names[i]) { rc = -ENOMEM; goto out2; @@ -235,7 +235,7 @@ out2: if (rc < 0) lnet_ipif_free_enumeration(names, nfound); out1: - LIBCFS_FREE(ifr, nalloc * sizeof(*ifr)); + kfree(ifr); out0: return rc; } @@ -249,9 +249,9 @@ lnet_ipif_free_enumeration(char **names, int n) LASSERT(n > 0); for (i = 0; i < n && names[i]; i++) - LIBCFS_FREE(names[i], IFNAMSIZ); + kfree(names[i]); - LIBCFS_FREE(names, n * sizeof(*names)); + kfree(names); } EXPORT_SYMBOL(lnet_ipif_free_enumeration); diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c index 5a5d1811ffbe..e3468cef273b 100644 --- a/drivers/staging/lustre/lnet/lnet/net_fault.c +++ b/drivers/staging/lustre/lnet/lnet/net_fault.c @@ -161,7 +161,7 @@ lnet_drop_rule_add(struct lnet_fault_attr *attr) if (lnet_fault_attr_validate(attr)) return -EINVAL; - CFS_ALLOC_PTR(rule); + rule = kzalloc(sizeof(*rule), GFP_NOFS); if (!rule) return -ENOMEM; @@ -170,10 +170,10 @@ lnet_drop_rule_add(struct lnet_fault_attr *attr) rule->dr_attr = *attr; if (attr->u.drop.da_interval) { rule->dr_time_base = cfs_time_shift(attr->u.drop.da_interval); - rule->dr_drop_time = cfs_time_shift(cfs_rand() % - attr->u.drop.da_interval); + rule->dr_drop_time = cfs_time_shift( + prandom_u32_max(attr->u.drop.da_interval)); } else { - rule->dr_drop_at = cfs_rand() % attr->u.drop.da_rate; + rule->dr_drop_at = prandom_u32_max(attr->u.drop.da_rate); } lnet_net_lock(LNET_LOCK_EX); @@ -223,7 +223,7 @@ lnet_drop_rule_del(lnet_nid_t src, lnet_nid_t dst) rule->dr_attr.u.drop.da_interval); list_del(&rule->dr_link); - CFS_FREE_PTR(rule); + kfree(rule); n++; } @@ -277,10 +277,10 @@ lnet_drop_rule_reset(void) memset(&rule->dr_stat, 0, sizeof(rule->dr_stat)); if (attr->u.drop.da_rate) { - rule->dr_drop_at = cfs_rand() % attr->u.drop.da_rate; + rule->dr_drop_at = prandom_u32_max(attr->u.drop.da_rate); } else { - rule->dr_drop_time = cfs_time_shift(cfs_rand() % - attr->u.drop.da_interval); + rule->dr_drop_time = cfs_time_shift( + prandom_u32_max(attr->u.drop.da_interval)); rule->dr_time_base = cfs_time_shift(attr->u.drop.da_interval); } spin_unlock(&rule->dr_lock); @@ -315,8 +315,8 @@ drop_rule_match(struct lnet_drop_rule *rule, lnet_nid_t src, rule->dr_time_base = now; rule->dr_drop_time = rule->dr_time_base + - cfs_time_seconds(cfs_rand() % - attr->u.drop.da_interval); + cfs_time_seconds( + prandom_u32_max(attr->u.drop.da_interval)); rule->dr_time_base += cfs_time_seconds(attr->u.drop.da_interval); CDEBUG(D_NET, "Drop Rule %s->%s: next drop : %lu\n", @@ -330,7 +330,7 @@ drop_rule_match(struct lnet_drop_rule *rule, lnet_nid_t src, if (!do_div(rule->dr_stat.fs_count, attr->u.drop.da_rate)) { rule->dr_drop_at = rule->dr_stat.fs_count + - cfs_rand() % attr->u.drop.da_rate; + prandom_u32_max(attr->u.drop.da_rate); CDEBUG(D_NET, "Drop Rule %s->%s: next drop: %lu\n", libcfs_nid2str(attr->fa_src), libcfs_nid2str(attr->fa_dst), rule->dr_drop_at); @@ -452,7 +452,7 @@ delay_rule_decref(struct lnet_delay_rule *rule) LASSERT(list_empty(&rule->dl_msg_list)); LASSERT(list_empty(&rule->dl_link)); - CFS_FREE_PTR(rule); + kfree(rule); } } @@ -483,8 +483,9 @@ delay_rule_match(struct lnet_delay_rule *rule, lnet_nid_t src, rule->dl_time_base = now; rule->dl_delay_time = rule->dl_time_base + - cfs_time_seconds(cfs_rand() % - attr->u.delay.la_interval); + cfs_time_seconds( + prandom_u32_max( + attr->u.delay.la_interval)); rule->dl_time_base += cfs_time_seconds(attr->u.delay.la_interval); CDEBUG(D_NET, "Delay Rule %s->%s: next delay : %lu\n", @@ -498,7 +499,7 @@ delay_rule_match(struct lnet_delay_rule *rule, lnet_nid_t src, /* generate the next random rate sequence */ if (!do_div(rule->dl_stat.fs_count, attr->u.delay.la_rate)) { rule->dl_delay_at = rule->dl_stat.fs_count + - cfs_rand() % attr->u.delay.la_rate; + prandom_u32_max(attr->u.delay.la_rate); CDEBUG(D_NET, "Delay Rule %s->%s: next delay: %lu\n", libcfs_nid2str(attr->fa_src), libcfs_nid2str(attr->fa_dst), rule->dl_delay_at); @@ -738,7 +739,7 @@ lnet_delay_rule_add(struct lnet_fault_attr *attr) if (lnet_fault_attr_validate(attr)) return -EINVAL; - CFS_ALLOC_PTR(rule); + rule = kzalloc(sizeof(*rule), GFP_NOFS); if (!rule) return -ENOMEM; @@ -771,10 +772,10 @@ lnet_delay_rule_add(struct lnet_fault_attr *attr) rule->dl_attr = *attr; if (attr->u.delay.la_interval) { rule->dl_time_base = cfs_time_shift(attr->u.delay.la_interval); - rule->dl_delay_time = cfs_time_shift(cfs_rand() % - attr->u.delay.la_interval); + rule->dl_delay_time = cfs_time_shift( + prandom_u32_max(attr->u.delay.la_interval)); } else { - rule->dl_delay_at = cfs_rand() % attr->u.delay.la_rate; + rule->dl_delay_at = prandom_u32_max(attr->u.delay.la_rate); } rule->dl_msg_send = -1; @@ -792,7 +793,7 @@ lnet_delay_rule_add(struct lnet_fault_attr *attr) return 0; failed: mutex_unlock(&delay_dd.dd_mutex); - CFS_FREE_PTR(rule); + kfree(rule); return rc; } @@ -920,10 +921,11 @@ lnet_delay_rule_reset(void) memset(&rule->dl_stat, 0, sizeof(rule->dl_stat)); if (attr->u.delay.la_rate) { - rule->dl_delay_at = cfs_rand() % attr->u.delay.la_rate; + rule->dl_delay_at = prandom_u32_max(attr->u.delay.la_rate); } else { - rule->dl_delay_time = cfs_time_shift(cfs_rand() % - attr->u.delay.la_interval); + rule->dl_delay_time = + cfs_time_shift(prandom_u32_max( + attr->u.delay.la_interval)); rule->dl_time_base = cfs_time_shift(attr->u.delay.la_interval); } spin_unlock(&rule->dl_lock); diff --git a/drivers/staging/lustre/lnet/lnet/nidstrings.c b/drivers/staging/lustre/lnet/lnet/nidstrings.c index 05b120c2d45a..3aba1421c741 100644 --- a/drivers/staging/lustre/lnet/lnet/nidstrings.c +++ b/drivers/staging/lustre/lnet/lnet/nidstrings.c @@ -166,7 +166,7 @@ parse_addrange(const struct cfs_lstr *src, struct nidrange *nidrange) return 0; } - LIBCFS_ALLOC(addrrange, sizeof(struct addrrange)); + addrrange = kzalloc(sizeof(struct addrrange), GFP_NOFS); if (!addrrange) return -ENOMEM; list_add_tail(&addrrange->ar_link, &nidrange->nr_addrranges); @@ -225,7 +225,7 @@ add_nidrange(const struct cfs_lstr *src, return nr; } - LIBCFS_ALLOC(nr, sizeof(struct nidrange)); + nr = kzalloc(sizeof(struct nidrange), GFP_NOFS); if (!nr) return NULL; list_add_tail(&nr->nr_link, nidlist); @@ -286,7 +286,7 @@ free_addrranges(struct list_head *list) cfs_expr_list_free_list(&ar->ar_numaddr_ranges); list_del(&ar->ar_link); - LIBCFS_FREE(ar, sizeof(struct addrrange)); + kfree(ar); } } @@ -308,7 +308,7 @@ cfs_free_nidlist(struct list_head *list) nr = list_entry(pos, struct nidrange, nr_link); free_addrranges(&nr->nr_addrranges); list_del(pos); - LIBCFS_FREE(nr, sizeof(struct nidrange)); + kfree(nr); } } EXPORT_SYMBOL(cfs_free_nidlist); diff --git a/drivers/staging/lustre/lnet/lnet/peer.c b/drivers/staging/lustre/lnet/lnet/peer.c index 5e94ad349454..3e157c10fec4 100644 --- a/drivers/staging/lustre/lnet/lnet/peer.c +++ b/drivers/staging/lustre/lnet/lnet/peer.c @@ -56,8 +56,8 @@ lnet_peer_tables_create(void) cfs_percpt_for_each(ptable, i, the_lnet.ln_peer_tables) { INIT_LIST_HEAD(&ptable->pt_deathrow); - LIBCFS_CPT_ALLOC(hash, lnet_cpt_table(), i, - LNET_PEER_HASH_SIZE * sizeof(*hash)); + hash = kvmalloc_cpt(LNET_PEER_HASH_SIZE * sizeof(*hash), + GFP_KERNEL, i); if (!hash) { CERROR("Failed to create peer hash table\n"); lnet_peer_tables_destroy(); @@ -94,7 +94,7 @@ lnet_peer_tables_destroy(void) for (j = 0; j < LNET_PEER_HASH_SIZE; j++) LASSERT(list_empty(&hash[j])); - LIBCFS_FREE(hash, LNET_PEER_HASH_SIZE * sizeof(*hash)); + kvfree(hash); } cfs_percpt_free(the_lnet.ln_peer_tables); @@ -212,7 +212,7 @@ lnet_peer_tables_cleanup(struct lnet_ni *ni) list_for_each_entry_safe(lp, temp, &deathrow, lp_hashlist) { list_del(&lp->lp_hashlist); - LIBCFS_FREE(lp, sizeof(*lp)); + kfree(lp); } } @@ -297,7 +297,7 @@ lnet_nid2peer_locked(struct lnet_peer **lpp, lnet_nid_t nid, int cpt) if (lp) memset(lp, 0, sizeof(*lp)); else - LIBCFS_CPT_ALLOC(lp, lnet_cpt_table(), cpt2, sizeof(*lp)); + lp = kzalloc_cpt(sizeof(*lp), GFP_NOFS, cpt2); if (!lp) { rc = -ENOMEM; diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c index 88283ca3f860..6504761ca598 100644 --- a/drivers/staging/lustre/lnet/lnet/router.c +++ b/drivers/staging/lustre/lnet/lnet/router.c @@ -238,28 +238,25 @@ lnet_find_net_locked(__u32 net) static void lnet_shuffle_seed(void) { static int seeded; - __u32 lnd_type, seed[2]; - struct timespec64 ts; struct lnet_ni *ni; if (seeded) return; - cfs_get_random_bytes(seed, sizeof(seed)); - /* * Nodes with small feet have little entropy * the NID for this node gives the most entropy in the low bits */ list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) { - lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid)); + __u32 lnd_type, seed; - if (lnd_type != LOLND) - seed[0] ^= (LNET_NIDADDR(ni->ni_nid) | lnd_type); + lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid)); + if (lnd_type != LOLND) { + seed = (LNET_NIDADDR(ni->ni_nid) | lnd_type); + add_device_randomness(&seed, sizeof(seed)); + } } - ktime_get_ts64(&ts); - cfs_srand(ts.tv_sec ^ seed[0], ts.tv_nsec ^ seed[1]); seeded = 1; } @@ -277,8 +274,8 @@ lnet_add_route_to_rnet(struct lnet_remotenet *rnet, struct lnet_route *route) len++; } - /* len+1 positions to add a new entry, also prevents division by 0 */ - offset = cfs_rand() % (len + 1); + /* len+1 positions to add a new entry */ + offset = prandom_u32_max(len + 1); list_for_each(e, &rnet->lrn_routes) { if (!offset) break; @@ -318,15 +315,13 @@ lnet_add_route(__u32 net, __u32 hops, lnet_nid_t gateway, return -EEXIST; /* Assume net, route, all new */ - LIBCFS_ALLOC(route, sizeof(*route)); - LIBCFS_ALLOC(rnet, sizeof(*rnet)); + route = kzalloc(sizeof(*route), GFP_NOFS); + rnet = kzalloc(sizeof(*rnet), GFP_NOFS); if (!route || !rnet) { CERROR("Out of memory creating route %s %d %s\n", libcfs_net2str(net), hops, libcfs_nid2str(gateway)); - if (route) - LIBCFS_FREE(route, sizeof(*route)); - if (rnet) - LIBCFS_FREE(rnet, sizeof(*rnet)); + kfree(route); + kfree(rnet); return -ENOMEM; } @@ -342,8 +337,8 @@ lnet_add_route(__u32 net, __u32 hops, lnet_nid_t gateway, if (rc) { lnet_net_unlock(LNET_LOCK_EX); - LIBCFS_FREE(route, sizeof(*route)); - LIBCFS_FREE(rnet, sizeof(*rnet)); + kfree(route); + kfree(rnet); if (rc == -EHOSTUNREACH) /* gateway is not on a local net */ return rc; /* ignore the route entry */ @@ -398,11 +393,11 @@ lnet_add_route(__u32 net, __u32 hops, lnet_nid_t gateway, if (!add_route) { rc = -EEXIST; - LIBCFS_FREE(route, sizeof(*route)); + kfree(route); } if (rnet != rnet2) - LIBCFS_FREE(rnet, sizeof(*rnet)); + kfree(rnet); /* indicate to startup the router checker if configured */ wake_up(&the_lnet.ln_rc_waitq); @@ -520,10 +515,8 @@ lnet_del_route(__u32 net, lnet_nid_t gw_nid) lnet_net_unlock(LNET_LOCK_EX); - LIBCFS_FREE(route, sizeof(*route)); - - if (rnet) - LIBCFS_FREE(rnet, sizeof(*rnet)); + kfree(route); + kfree(rnet); rc = 0; lnet_net_lock(LNET_LOCK_EX); @@ -891,10 +884,9 @@ lnet_destroy_rc_data(struct lnet_rc_data *rcd) lnet_net_unlock(cpt); } - if (rcd->rcd_pinginfo) - LIBCFS_FREE(rcd->rcd_pinginfo, LNET_PINGINFO_SIZE); + kfree(rcd->rcd_pinginfo); - LIBCFS_FREE(rcd, sizeof(*rcd)); + kfree(rcd); } static struct lnet_rc_data * @@ -908,14 +900,14 @@ lnet_create_rc_data_locked(struct lnet_peer *gateway) lnet_net_unlock(gateway->lp_cpt); - LIBCFS_ALLOC(rcd, sizeof(*rcd)); + rcd = kzalloc(sizeof(*rcd), GFP_NOFS); if (!rcd) goto out; LNetInvalidateMDHandle(&rcd->rcd_mdh); INIT_LIST_HEAD(&rcd->rcd_list); - LIBCFS_ALLOC(pi, LNET_PINGINFO_SIZE); + pi = kzalloc(LNET_PINGINFO_SIZE, GFP_NOFS); if (!pi) goto out; @@ -1304,12 +1296,10 @@ rescan: void lnet_destroy_rtrbuf(struct lnet_rtrbuf *rb, int npages) { - int sz = offsetof(struct lnet_rtrbuf, rb_kiov[npages]); - while (--npages >= 0) __free_page(rb->rb_kiov[npages].bv_page); - LIBCFS_FREE(rb, sz); + kfree(rb); } static struct lnet_rtrbuf * @@ -1321,7 +1311,7 @@ lnet_new_rtrbuf(struct lnet_rtrbufpool *rbp, int cpt) struct lnet_rtrbuf *rb; int i; - LIBCFS_CPT_ALLOC(rb, lnet_cpt_table(), cpt, sz); + rb = kzalloc_cpt(sz, GFP_NOFS, cpt); if (!rb) return NULL; @@ -1335,7 +1325,7 @@ lnet_new_rtrbuf(struct lnet_rtrbufpool *rbp, int cpt) while (--i >= 0) __free_page(rb->rb_kiov[i].bv_page); - LIBCFS_FREE(rb, sz); + kfree(rb); return NULL; } diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c index d32d653edcb0..1a71ffebc889 100644 --- a/drivers/staging/lustre/lnet/lnet/router_proc.c +++ b/drivers/staging/lustre/lnet/lnet/router_proc.c @@ -91,13 +91,13 @@ static int __proc_lnet_stats(void *data, int write, /* read */ - LIBCFS_ALLOC(ctrs, sizeof(*ctrs)); + ctrs = kzalloc(sizeof(*ctrs), GFP_NOFS); if (!ctrs) return -ENOMEM; - LIBCFS_ALLOC(tmpstr, tmpsiz); + tmpstr = kmalloc(tmpsiz, GFP_KERNEL); if (!tmpstr) { - LIBCFS_FREE(ctrs, sizeof(*ctrs)); + kfree(ctrs); return -ENOMEM; } @@ -118,8 +118,8 @@ static int __proc_lnet_stats(void *data, int write, rc = cfs_trace_copyout_string(buffer, nob, tmpstr + pos, "\n"); - LIBCFS_FREE(tmpstr, tmpsiz); - LIBCFS_FREE(ctrs, sizeof(*ctrs)); + kfree(tmpstr); + kfree(ctrs); return rc; } @@ -151,7 +151,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write, if (!*lenp) return 0; - LIBCFS_ALLOC(tmpstr, tmpsiz); + tmpstr = kmalloc(tmpsiz, GFP_KERNEL); if (!tmpstr) return -ENOMEM; @@ -183,7 +183,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write, if (ver != LNET_PROC_VERSION(the_lnet.ln_remote_nets_version)) { lnet_net_unlock(0); - LIBCFS_FREE(tmpstr, tmpsiz); + kfree(tmpstr); return -ESTALE; } @@ -248,7 +248,7 @@ static int proc_lnet_routes(struct ctl_table *table, int write, } } - LIBCFS_FREE(tmpstr, tmpsiz); + kfree(tmpstr); if (!rc) *lenp = len; @@ -275,7 +275,7 @@ static int proc_lnet_routers(struct ctl_table *table, int write, if (!*lenp) return 0; - LIBCFS_ALLOC(tmpstr, tmpsiz); + tmpstr = kmalloc(tmpsiz, GFP_KERNEL); if (!tmpstr) return -ENOMEM; @@ -303,7 +303,7 @@ static int proc_lnet_routers(struct ctl_table *table, int write, if (ver != LNET_PROC_VERSION(the_lnet.ln_routers_version)) { lnet_net_unlock(0); - LIBCFS_FREE(tmpstr, tmpsiz); + kfree(tmpstr); return -ESTALE; } @@ -385,7 +385,7 @@ static int proc_lnet_routers(struct ctl_table *table, int write, } } - LIBCFS_FREE(tmpstr, tmpsiz); + kfree(tmpstr); if (!rc) *lenp = len; @@ -418,7 +418,7 @@ static int proc_lnet_peers(struct ctl_table *table, int write, return 0; } - LIBCFS_ALLOC(tmpstr, tmpsiz); + tmpstr = kmalloc(tmpsiz, GFP_KERNEL); if (!tmpstr) return -ENOMEM; @@ -448,7 +448,7 @@ static int proc_lnet_peers(struct ctl_table *table, int write, if (ver != LNET_PROC_VERSION(ptable->pt_version)) { lnet_net_unlock(cpt); - LIBCFS_FREE(tmpstr, tmpsiz); + kfree(tmpstr); return -ESTALE; } @@ -556,7 +556,7 @@ static int proc_lnet_peers(struct ctl_table *table, int write, *ppos = LNET_PROC_POS_MAKE(cpt, ver, hash, hoff); } - LIBCFS_FREE(tmpstr, tmpsiz); + kfree(tmpstr); if (!rc) *lenp = len; @@ -579,7 +579,7 @@ static int __proc_lnet_buffers(void *data, int write, /* (4 %d) * 4 * LNET_CPT_NUMBER */ tmpsiz = 64 * (LNET_NRBPOOLS + 1) * LNET_CPT_NUMBER; - LIBCFS_ALLOC(tmpstr, tmpsiz); + tmpstr = kvmalloc(tmpsiz, GFP_KERNEL); if (!tmpstr) return -ENOMEM; @@ -618,7 +618,7 @@ static int __proc_lnet_buffers(void *data, int write, rc = cfs_trace_copyout_string(buffer, nob, tmpstr + pos, NULL); - LIBCFS_FREE(tmpstr, tmpsiz); + kvfree(tmpstr); return rc; } @@ -643,7 +643,7 @@ static int proc_lnet_nis(struct ctl_table *table, int write, if (!*lenp) return 0; - LIBCFS_ALLOC(tmpstr, tmpsiz); + tmpstr = kvmalloc(tmpsiz, GFP_KERNEL); if (!tmpstr) return -ENOMEM; @@ -744,7 +744,7 @@ static int proc_lnet_nis(struct ctl_table *table, int write, *ppos += 1; } - LIBCFS_FREE(tmpstr, tmpsiz); + kvfree(tmpstr); if (!rc) *lenp = len; @@ -795,7 +795,7 @@ static int __proc_lnet_portal_rotor(void *data, int write, int rc; int i; - LIBCFS_ALLOC(buf, buf_len); + buf = kmalloc(buf_len, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -829,7 +829,7 @@ static int __proc_lnet_portal_rotor(void *data, int write, if (rc < 0) goto out; - tmp = cfs_trimwhite(buf); + tmp = strim(buf); rc = -EINVAL; lnet_res_lock(0); @@ -843,7 +843,7 @@ static int __proc_lnet_portal_rotor(void *data, int write, } lnet_res_unlock(0); out: - LIBCFS_FREE(buf, buf_len); + kfree(buf); return rc; } diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c index 082c0afacf23..34ba440b3c02 100644 --- a/drivers/staging/lustre/lnet/selftest/conctl.c +++ b/drivers/staging/lustre/lnet/selftest/conctl.c @@ -45,7 +45,7 @@ static int lst_session_new_ioctl(struct lstio_session_new_args *args) { - char *name; + char name[LST_NAME_SIZE + 1]; int rc; if (!args->lstio_ses_idp || /* address for output sid */ @@ -55,13 +55,8 @@ lst_session_new_ioctl(struct lstio_session_new_args *args) args->lstio_ses_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_ses_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_ses_namep, args->lstio_ses_nmlen)) { - LIBCFS_FREE(name, args->lstio_ses_nmlen + 1); return -EFAULT; } @@ -74,7 +69,6 @@ lst_session_new_ioctl(struct lstio_session_new_args *args) args->lstio_ses_force, args->lstio_ses_idp); - LIBCFS_FREE(name, args->lstio_ses_nmlen + 1); return rc; } @@ -112,7 +106,7 @@ lst_session_info_ioctl(struct lstio_session_info_args *args) static int lst_debug_ioctl(struct lstio_debug_args *args) { - char *name = NULL; + char name[LST_NAME_SIZE + 1]; int client = 1; int rc; @@ -128,16 +122,10 @@ lst_debug_ioctl(struct lstio_debug_args *args) return -EINVAL; if (args->lstio_dbg_namep) { - LIBCFS_ALLOC(name, args->lstio_dbg_nmlen + 1); - if (!name) - return -ENOMEM; if (copy_from_user(name, args->lstio_dbg_namep, - args->lstio_dbg_nmlen)) { - LIBCFS_FREE(name, args->lstio_dbg_nmlen + 1); - + args->lstio_dbg_nmlen)) return -EFAULT; - } name[args->lstio_dbg_nmlen] = 0; } @@ -154,7 +142,7 @@ lst_debug_ioctl(struct lstio_debug_args *args) client = 0; /* fall through */ case LST_OPC_BATCHCLI: - if (!name) + if (!args->lstio_dbg_namep) goto out; rc = lstcon_batch_debug(args->lstio_dbg_timeout, @@ -162,7 +150,7 @@ lst_debug_ioctl(struct lstio_debug_args *args) break; case LST_OPC_GROUP: - if (!name) + if (!args->lstio_dbg_namep) goto out; rc = lstcon_group_debug(args->lstio_dbg_timeout, @@ -185,16 +173,13 @@ lst_debug_ioctl(struct lstio_debug_args *args) } out: - if (name) - LIBCFS_FREE(name, args->lstio_dbg_nmlen + 1); - return rc; } static int lst_group_add_ioctl(struct lstio_group_add_args *args) { - char *name; + char name[LST_NAME_SIZE + 1]; int rc; if (args->lstio_grp_key != console_session.ses_key) @@ -205,22 +190,14 @@ lst_group_add_ioctl(struct lstio_group_add_args *args) args->lstio_grp_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_grp_namep, - args->lstio_grp_nmlen)) { - LIBCFS_FREE(name, args->lstio_grp_nmlen); + args->lstio_grp_nmlen)) return -EFAULT; - } name[args->lstio_grp_nmlen] = 0; rc = lstcon_group_add(name); - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); - return rc; } @@ -228,7 +205,7 @@ static int lst_group_del_ioctl(struct lstio_group_del_args *args) { int rc; - char *name; + char name[LST_NAME_SIZE + 1]; if (args->lstio_grp_key != console_session.ses_key) return -EACCES; @@ -238,22 +215,14 @@ lst_group_del_ioctl(struct lstio_group_del_args *args) args->lstio_grp_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_grp_namep, - args->lstio_grp_nmlen)) { - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); + args->lstio_grp_nmlen)) return -EFAULT; - } name[args->lstio_grp_nmlen] = 0; rc = lstcon_group_del(name); - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); - return rc; } @@ -261,7 +230,7 @@ static int lst_group_update_ioctl(struct lstio_group_update_args *args) { int rc; - char *name; + char name[LST_NAME_SIZE + 1]; if (args->lstio_grp_key != console_session.ses_key) return -EACCES; @@ -272,15 +241,9 @@ lst_group_update_ioctl(struct lstio_group_update_args *args) args->lstio_grp_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_grp_namep, - args->lstio_grp_nmlen)) { - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); + args->lstio_grp_nmlen)) return -EFAULT; - } name[args->lstio_grp_nmlen] = 0; @@ -309,8 +272,6 @@ lst_group_update_ioctl(struct lstio_group_update_args *args) break; } - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); - return rc; } @@ -319,7 +280,7 @@ lst_nodes_add_ioctl(struct lstio_group_nodes_args *args) { unsigned int feats; int rc; - char *name; + char name[LST_NAME_SIZE + 1]; if (args->lstio_grp_key != console_session.ses_key) return -EACCES; @@ -333,16 +294,9 @@ lst_nodes_add_ioctl(struct lstio_group_nodes_args *args) args->lstio_grp_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_grp_namep, - args->lstio_grp_nmlen)) { - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); - + args->lstio_grp_nmlen)) return -EFAULT; - } name[args->lstio_grp_nmlen] = 0; @@ -350,7 +304,6 @@ lst_nodes_add_ioctl(struct lstio_group_nodes_args *args) args->lstio_grp_idsp, &feats, args->lstio_grp_resultp); - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); if (!rc && copy_to_user(args->lstio_grp_featp, &feats, sizeof(feats))) { return -EINVAL; @@ -379,7 +332,7 @@ lst_group_list_ioctl(struct lstio_group_list_args *args) static int lst_group_info_ioctl(struct lstio_group_info_args *args) { - char *name; + char name[LST_NAME_SIZE + 1]; int ndent; int index; int rc; @@ -411,23 +364,15 @@ lst_group_info_ioctl(struct lstio_group_info_args *args) return -EINVAL; } - LIBCFS_ALLOC(name, args->lstio_grp_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_grp_namep, - args->lstio_grp_nmlen)) { - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); + args->lstio_grp_nmlen)) return -EFAULT; - } name[args->lstio_grp_nmlen] = 0; rc = lstcon_group_info(name, args->lstio_grp_entp, &index, &ndent, args->lstio_grp_dentsp); - LIBCFS_FREE(name, args->lstio_grp_nmlen + 1); - if (rc) return rc; @@ -443,7 +388,7 @@ static int lst_batch_add_ioctl(struct lstio_batch_add_args *args) { int rc; - char *name; + char name[LST_NAME_SIZE + 1]; if (args->lstio_bat_key != console_session.ses_key) return -EACCES; @@ -453,22 +398,14 @@ lst_batch_add_ioctl(struct lstio_batch_add_args *args) args->lstio_bat_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_bat_namep, - args->lstio_bat_nmlen)) { - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); + args->lstio_bat_nmlen)) return -EFAULT; - } name[args->lstio_bat_nmlen] = 0; rc = lstcon_batch_add(name); - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); - return rc; } @@ -476,7 +413,7 @@ static int lst_batch_run_ioctl(struct lstio_batch_run_args *args) { int rc; - char *name; + char name[LST_NAME_SIZE + 1]; if (args->lstio_bat_key != console_session.ses_key) return -EACCES; @@ -486,23 +423,15 @@ lst_batch_run_ioctl(struct lstio_batch_run_args *args) args->lstio_bat_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_bat_namep, - args->lstio_bat_nmlen)) { - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); + args->lstio_bat_nmlen)) return -EFAULT; - } name[args->lstio_bat_nmlen] = 0; rc = lstcon_batch_run(name, args->lstio_bat_timeout, args->lstio_bat_resultp); - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); - return rc; } @@ -510,7 +439,7 @@ static int lst_batch_stop_ioctl(struct lstio_batch_stop_args *args) { int rc; - char *name; + char name[LST_NAME_SIZE + 1]; if (args->lstio_bat_key != console_session.ses_key) return -EACCES; @@ -521,30 +450,22 @@ lst_batch_stop_ioctl(struct lstio_batch_stop_args *args) args->lstio_bat_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_bat_namep, - args->lstio_bat_nmlen)) { - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); + args->lstio_bat_nmlen)) return -EFAULT; - } name[args->lstio_bat_nmlen] = 0; rc = lstcon_batch_stop(name, args->lstio_bat_force, args->lstio_bat_resultp); - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); - return rc; } static int lst_batch_query_ioctl(struct lstio_batch_query_args *args) { - char *name; + char name[LST_NAME_SIZE + 1]; int rc; if (args->lstio_bat_key != console_session.ses_key) @@ -559,15 +480,9 @@ lst_batch_query_ioctl(struct lstio_batch_query_args *args) if (args->lstio_bat_testidx < 0) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_bat_namep, - args->lstio_bat_nmlen)) { - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); + args->lstio_bat_nmlen)) return -EFAULT; - } name[args->lstio_bat_nmlen] = 0; @@ -577,8 +492,6 @@ lst_batch_query_ioctl(struct lstio_batch_query_args *args) args->lstio_bat_timeout, args->lstio_bat_resultp); - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); - return rc; } @@ -602,7 +515,7 @@ lst_batch_list_ioctl(struct lstio_batch_list_args *args) static int lst_batch_info_ioctl(struct lstio_batch_info_args *args) { - char *name; + char name[LST_NAME_SIZE + 1]; int rc; int index; int ndent; @@ -634,15 +547,9 @@ lst_batch_info_ioctl(struct lstio_batch_info_args *args) return -EINVAL; } - LIBCFS_ALLOC(name, args->lstio_bat_nmlen + 1); - if (!name) - return -ENOMEM; - if (copy_from_user(name, args->lstio_bat_namep, - args->lstio_bat_nmlen)) { - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); + args->lstio_bat_nmlen)) return -EFAULT; - } name[args->lstio_bat_nmlen] = 0; @@ -650,8 +557,6 @@ lst_batch_info_ioctl(struct lstio_batch_info_args *args) args->lstio_bat_server, args->lstio_bat_testidx, &index, &ndent, args->lstio_bat_dentsp); - LIBCFS_FREE(name, args->lstio_bat_nmlen + 1); - if (rc) return rc; @@ -667,7 +572,7 @@ static int lst_stat_query_ioctl(struct lstio_stat_args *args) { int rc; - char *name = NULL; + char name[LST_NAME_SIZE + 1]; /* TODO: not finished */ if (args->lstio_sta_key != console_session.ses_key) @@ -689,10 +594,6 @@ lst_stat_query_ioctl(struct lstio_stat_args *args) args->lstio_sta_nmlen > LST_NAME_SIZE) return -EINVAL; - LIBCFS_ALLOC(name, args->lstio_sta_nmlen + 1); - if (!name) - return -ENOMEM; - rc = copy_from_user(name, args->lstio_sta_namep, args->lstio_sta_nmlen); if (!rc) @@ -704,16 +605,14 @@ lst_stat_query_ioctl(struct lstio_stat_args *args) rc = -EINVAL; } - if (name) - LIBCFS_FREE(name, args->lstio_sta_nmlen + 1); return rc; } static int lst_test_add_ioctl(struct lstio_test_args *args) { - char *batch_name; - char *src_name = NULL; - char *dst_name = NULL; + char batch_name[LST_NAME_SIZE + 1]; + char src_name[LST_NAME_SIZE + 1]; + char dst_name[LST_NAME_SIZE + 1]; void *param = NULL; int ret = 0; int rc = -ENOMEM; @@ -748,20 +647,8 @@ static int lst_test_add_ioctl(struct lstio_test_args *args) if (!args->lstio_tes_param && args->lstio_tes_param_len) return -EINVAL; - LIBCFS_ALLOC(batch_name, args->lstio_tes_bat_nmlen + 1); - if (!batch_name) - return rc; - - LIBCFS_ALLOC(src_name, args->lstio_tes_sgrp_nmlen + 1); - if (!src_name) - goto out; - - LIBCFS_ALLOC(dst_name, args->lstio_tes_dgrp_nmlen + 1); - if (!dst_name) - goto out; - if (args->lstio_tes_param) { - LIBCFS_ALLOC(param, args->lstio_tes_param_len); + param = kmalloc(args->lstio_tes_param_len, GFP_KERNEL); if (!param) goto out; if (copy_from_user(param, args->lstio_tes_param, @@ -791,17 +678,7 @@ static int lst_test_add_ioctl(struct lstio_test_args *args) rc = (copy_to_user(args->lstio_tes_retp, &ret, sizeof(ret))) ? -EFAULT : 0; out: - if (batch_name) - LIBCFS_FREE(batch_name, args->lstio_tes_bat_nmlen + 1); - - if (src_name) - LIBCFS_FREE(src_name, args->lstio_tes_sgrp_nmlen + 1); - - if (dst_name) - LIBCFS_FREE(dst_name, args->lstio_tes_dgrp_nmlen + 1); - - if (param) - LIBCFS_FREE(param, args->lstio_tes_param_len); + kfree(param); return rc; } @@ -824,13 +701,13 @@ lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_hdr *hdr) if (data->ioc_plen1 > PAGE_SIZE) return -EINVAL; - LIBCFS_ALLOC(buf, data->ioc_plen1); + buf = kmalloc(data->ioc_plen1, GFP_KERNEL); if (!buf) return -ENOMEM; /* copy in parameter */ if (copy_from_user(buf, data->ioc_pbuf1, data->ioc_plen1)) { - LIBCFS_FREE(buf, data->ioc_plen1); + kfree(buf); return -EFAULT; } @@ -920,7 +797,7 @@ lstcon_ioctl_entry(unsigned int cmd, struct libcfs_ioctl_hdr *hdr) out: mutex_unlock(&console_session.ses_mutex); - LIBCFS_FREE(buf, data->ioc_plen1); + kfree(buf); return rc; } diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c index 6a0f770e0e24..7aa515c34594 100644 --- a/drivers/staging/lustre/lnet/selftest/conrpc.c +++ b/drivers/staging/lustre/lnet/selftest/conrpc.c @@ -129,7 +129,7 @@ lstcon_rpc_prep(struct lstcon_node *nd, int service, unsigned int feats, spin_unlock(&console_session.ses_rpc_lock); if (!crpc) { - LIBCFS_ALLOC(crpc, sizeof(*crpc)); + crpc = kzalloc(sizeof(*crpc), GFP_NOFS); if (!crpc) return -ENOMEM; } @@ -140,7 +140,7 @@ lstcon_rpc_prep(struct lstcon_node *nd, int service, unsigned int feats, return 0; } - LIBCFS_FREE(crpc, sizeof(*crpc)); + kfree(crpc); return rc; } @@ -250,7 +250,7 @@ lstcon_rpc_trans_prep(struct list_head *translist, int transop, } /* create a trans group */ - LIBCFS_ALLOC(trans, sizeof(*trans)); + trans = kzalloc(sizeof(*trans), GFP_NOFS); if (!trans) return -ENOMEM; @@ -585,7 +585,7 @@ lstcon_rpc_trans_destroy(struct lstcon_rpc_trans *trans) CDEBUG(D_NET, "Transaction %s destroyed with %d pending RPCs\n", lstcon_rpc_trans_name(trans->tas_opc), count); - LIBCFS_FREE(trans, sizeof(*trans)); + kfree(trans); } int @@ -1369,7 +1369,7 @@ lstcon_rpc_cleanup_wait(void) list_for_each_entry_safe(crpc, temp, &zlist, crp_link) { list_del(&crpc->crp_link); - LIBCFS_FREE(crpc, sizeof(struct lstcon_rpc)); + kfree(crpc); } } diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c index a2662638d599..1acd5cb324b1 100644 --- a/drivers/staging/lustre/lnet/selftest/console.c +++ b/drivers/staging/lustre/lnet/selftest/console.c @@ -88,7 +88,7 @@ lstcon_node_find(struct lnet_process_id id, struct lstcon_node **ndpp, if (!create) return -ENOENT; - LIBCFS_ALLOC(*ndpp, sizeof(**ndpp) + sizeof(*ndl)); + *ndpp = kzalloc(sizeof(**ndpp) + sizeof(*ndl), GFP_KERNEL); if (!*ndpp) return -ENOMEM; @@ -133,7 +133,7 @@ lstcon_node_put(struct lstcon_node *nd) list_del(&ndl->ndl_link); list_del(&ndl->ndl_hlink); - LIBCFS_FREE(nd, sizeof(*nd) + sizeof(*ndl)); + kfree(nd); } static int @@ -166,7 +166,7 @@ lstcon_ndlink_find(struct list_head *hash, struct lnet_process_id id, if (rc) return rc; - LIBCFS_ALLOC(ndl, sizeof(struct lstcon_ndlink)); + ndl = kzalloc(sizeof(struct lstcon_ndlink), GFP_NOFS); if (!ndl) { lstcon_node_put(nd); return -ENOMEM; @@ -190,7 +190,7 @@ lstcon_ndlink_release(struct lstcon_ndlink *ndl) list_del(&ndl->ndl_hlink); /* delete from hash */ lstcon_node_put(ndl->ndl_node); - LIBCFS_FREE(ndl, sizeof(*ndl)); + kfree(ndl); } static int @@ -199,16 +199,16 @@ lstcon_group_alloc(char *name, struct lstcon_group **grpp) struct lstcon_group *grp; int i; - LIBCFS_ALLOC(grp, offsetof(struct lstcon_group, - grp_ndl_hash[LST_NODE_HASHSIZE])); + grp = kmalloc(offsetof(struct lstcon_group, + grp_ndl_hash[LST_NODE_HASHSIZE]), + GFP_KERNEL); if (!grp) return -ENOMEM; grp->grp_ref = 1; if (name) { if (strlen(name) > sizeof(grp->grp_name) - 1) { - LIBCFS_FREE(grp, offsetof(struct lstcon_group, - grp_ndl_hash[LST_NODE_HASHSIZE])); + kfree(grp); return -E2BIG; } strncpy(grp->grp_name, name, sizeof(grp->grp_name)); @@ -263,8 +263,7 @@ lstcon_group_decref(struct lstcon_group *grp) for (i = 0; i < LST_NODE_HASHSIZE; i++) LASSERT(list_empty(&grp->grp_ndl_hash[i])); - LIBCFS_FREE(grp, offsetof(struct lstcon_group, - grp_ndl_hash[LST_NODE_HASHSIZE])); + kfree(grp); } static int @@ -807,7 +806,7 @@ lstcon_group_info(char *name, struct lstcon_ndlist_ent __user *gents_p, } /* non-verbose query */ - LIBCFS_ALLOC(gentp, sizeof(struct lstcon_ndlist_ent)); + gentp = kzalloc(sizeof(struct lstcon_ndlist_ent), GFP_NOFS); if (!gentp) { CERROR("Can't allocate ndlist_ent\n"); lstcon_group_decref(grp); @@ -821,7 +820,7 @@ lstcon_group_info(char *name, struct lstcon_ndlist_ent __user *gents_p, rc = copy_to_user(gents_p, gentp, sizeof(struct lstcon_ndlist_ent)) ? -EFAULT : 0; - LIBCFS_FREE(gentp, sizeof(struct lstcon_ndlist_ent)); + kfree(gentp); lstcon_group_decref(grp); @@ -856,35 +855,35 @@ lstcon_batch_add(char *name) return rc; } - LIBCFS_ALLOC(bat, sizeof(struct lstcon_batch)); + bat = kzalloc(sizeof(struct lstcon_batch), GFP_NOFS); if (!bat) { CERROR("Can't allocate descriptor for batch %s\n", name); return -ENOMEM; } - LIBCFS_ALLOC(bat->bat_cli_hash, - sizeof(struct list_head) * LST_NODE_HASHSIZE); + bat->bat_cli_hash = kmalloc(sizeof(struct list_head) * LST_NODE_HASHSIZE, + GFP_KERNEL); if (!bat->bat_cli_hash) { CERROR("Can't allocate hash for batch %s\n", name); - LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); + kfree(bat); return -ENOMEM; } - LIBCFS_ALLOC(bat->bat_srv_hash, - sizeof(struct list_head) * LST_NODE_HASHSIZE); + bat->bat_srv_hash = kmalloc(sizeof(struct list_head) * LST_NODE_HASHSIZE, + GFP_KERNEL); if (!bat->bat_srv_hash) { CERROR("Can't allocate hash for batch %s\n", name); - LIBCFS_FREE(bat->bat_cli_hash, LST_NODE_HASHSIZE); - LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); + kfree(bat->bat_cli_hash); + kfree(bat); return -ENOMEM; } if (strlen(name) > sizeof(bat->bat_name) - 1) { - LIBCFS_FREE(bat->bat_srv_hash, LST_NODE_HASHSIZE); - LIBCFS_FREE(bat->bat_cli_hash, LST_NODE_HASHSIZE); - LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); + kfree(bat->bat_srv_hash); + kfree(bat->bat_cli_hash); + kfree(bat); return -E2BIG; } strncpy(bat->bat_name, name, sizeof(bat->bat_name)); @@ -971,7 +970,7 @@ lstcon_batch_info(char *name, struct lstcon_test_batch_ent __user *ent_up, } /* non-verbose query */ - LIBCFS_ALLOC(entp, sizeof(struct lstcon_test_batch_ent)); + entp = kzalloc(sizeof(struct lstcon_test_batch_ent), GFP_NOFS); if (!entp) return -ENOMEM; @@ -993,7 +992,7 @@ lstcon_batch_info(char *name, struct lstcon_test_batch_ent __user *ent_up, rc = copy_to_user(ent_up, entp, sizeof(struct lstcon_test_batch_ent)) ? -EFAULT : 0; - LIBCFS_FREE(entp, sizeof(struct lstcon_test_batch_ent)); + kfree(entp); return rc; } @@ -1107,8 +1106,7 @@ lstcon_batch_destroy(struct lstcon_batch *bat) lstcon_group_decref(test->tes_src_grp); lstcon_group_decref(test->tes_dst_grp); - LIBCFS_FREE(test, offsetof(struct lstcon_test, - tes_param[test->tes_paramlen])); + kfree(test); } LASSERT(list_empty(&bat->bat_trans_list)); @@ -1134,11 +1132,9 @@ lstcon_batch_destroy(struct lstcon_batch *bat) LASSERT(list_empty(&bat->bat_srv_hash[i])); } - LIBCFS_FREE(bat->bat_cli_hash, - sizeof(struct list_head) * LST_NODE_HASHSIZE); - LIBCFS_FREE(bat->bat_srv_hash, - sizeof(struct list_head) * LST_NODE_HASHSIZE); - LIBCFS_FREE(bat, sizeof(struct lstcon_batch)); + kfree(bat->bat_cli_hash); + kfree(bat->bat_srv_hash); + kfree(bat); } static int @@ -1311,7 +1307,8 @@ lstcon_test_add(char *batch_name, int type, int loop, if (dst_grp->grp_userland) *retp = 1; - LIBCFS_ALLOC(test, offsetof(struct lstcon_test, tes_param[paramlen])); + test = kzalloc(offsetof(struct lstcon_test, tes_param[paramlen]), + GFP_KERNEL); if (!test) { CERROR("Can't allocate test descriptor\n"); rc = -ENOMEM; @@ -1357,8 +1354,7 @@ lstcon_test_add(char *batch_name, int type, int loop, /* hold groups so nobody can change them */ return rc; out: - if (test) - LIBCFS_FREE(test, offsetof(struct lstcon_test, tes_param[paramlen])); + kfree(test); if (dst_grp) lstcon_group_decref(dst_grp); @@ -1790,7 +1786,7 @@ lstcon_session_info(struct lst_sid __user *sid_up, int __user *key_up, if (console_session.ses_state != LST_SESSION_ACTIVE) return -ESRCH; - LIBCFS_ALLOC(entp, sizeof(*entp)); + entp = kzalloc(sizeof(*entp), GFP_NOFS); if (!entp) return -ENOMEM; @@ -1807,7 +1803,7 @@ lstcon_session_info(struct lst_sid __user *sid_up, int __user *key_up, copy_to_user(name_up, console_session.ses_name, len)) rc = -EFAULT; - LIBCFS_FREE(entp, sizeof(*entp)); + kfree(entp); return rc; } @@ -2027,8 +2023,8 @@ lstcon_console_init(void) INIT_LIST_HEAD(&console_session.ses_bat_list); INIT_LIST_HEAD(&console_session.ses_trans_list); - LIBCFS_ALLOC(console_session.ses_ndl_hash, - sizeof(struct list_head) * LST_GLOBAL_HASHSIZE); + console_session.ses_ndl_hash = + kmalloc(sizeof(struct list_head) * LST_GLOBAL_HASHSIZE, GFP_KERNEL); if (!console_session.ses_ndl_hash) return -ENOMEM; @@ -2041,8 +2037,7 @@ lstcon_console_init(void) rc = srpc_add_service(&lstcon_acceptor_service); LASSERT(rc != -EBUSY); if (rc) { - LIBCFS_FREE(console_session.ses_ndl_hash, - sizeof(struct list_head) * LST_GLOBAL_HASHSIZE); + kfree(console_session.ses_ndl_hash); return rc; } @@ -2064,8 +2059,7 @@ out: srpc_shutdown_service(&lstcon_acceptor_service); srpc_remove_service(&lstcon_acceptor_service); - LIBCFS_FREE(console_session.ses_ndl_hash, - sizeof(struct list_head) * LST_GLOBAL_HASHSIZE); + kfree(console_session.ses_ndl_hash); srpc_wait_service_shutdown(&lstcon_acceptor_service); @@ -2099,8 +2093,7 @@ lstcon_console_fini(void) for (i = 0; i < LST_NODE_HASHSIZE; i++) LASSERT(list_empty(&console_session.ses_ndl_hash[i])); - LIBCFS_FREE(console_session.ses_ndl_hash, - sizeof(struct list_head) * LST_GLOBAL_HASHSIZE); + kfree(console_session.ses_ndl_hash); srpc_wait_service_shutdown(&lstcon_acceptor_service); diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c index fe889607ff3f..c7697f66f663 100644 --- a/drivers/staging/lustre/lnet/selftest/framework.c +++ b/drivers/staging/lustre/lnet/selftest/framework.c @@ -143,7 +143,7 @@ sfw_register_test(struct srpc_service *service, return -EEXIST; } - LIBCFS_ALLOC(tsc, sizeof(struct sfw_test_case)); + tsc = kzalloc(sizeof(struct sfw_test_case), GFP_NOFS); if (!tsc) return -ENOMEM; @@ -344,7 +344,7 @@ sfw_bid2batch(struct lst_bid bid) if (bat) return bat; - LIBCFS_ALLOC(bat, sizeof(struct sfw_batch)); + bat = kzalloc(sizeof(struct sfw_batch), GFP_NOFS); if (!bat) return NULL; @@ -447,7 +447,7 @@ sfw_make_session(struct srpc_mksn_reqst *request, struct srpc_mksn_reply *reply) } /* brand new or create by force */ - LIBCFS_ALLOC(sn, sizeof(struct sfw_session)); + sn = kzalloc(sizeof(struct sfw_session), GFP_NOFS); if (!sn) { CERROR("dropping RPC mksn under memory pressure\n"); return -ENOMEM; @@ -632,19 +632,19 @@ sfw_destroy_test_instance(struct sfw_test_instance *tsi) tsu = list_entry(tsi->tsi_units.next, struct sfw_test_unit, tsu_list); list_del(&tsu->tsu_list); - LIBCFS_FREE(tsu, sizeof(*tsu)); + kfree(tsu); } while (!list_empty(&tsi->tsi_free_rpcs)) { rpc = list_entry(tsi->tsi_free_rpcs.next, struct srpc_client_rpc, crpc_list); list_del(&rpc->crpc_list); - LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); + kfree(rpc); } clean: sfw_unload_test(tsi); - LIBCFS_FREE(tsi, sizeof(*tsi)); + kfree(tsi); } static void @@ -662,7 +662,7 @@ sfw_destroy_batch(struct sfw_batch *tsb) sfw_destroy_test_instance(tsi); } - LIBCFS_FREE(tsb, sizeof(struct sfw_batch)); + kfree(tsb); } void @@ -680,7 +680,7 @@ sfw_destroy_session(struct sfw_session *sn) sfw_destroy_batch(batch); } - LIBCFS_FREE(sn, sizeof(*sn)); + kfree(sn); atomic_dec(&sfw_data.fw_nzombies); } @@ -740,7 +740,7 @@ sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) int i; int rc; - LIBCFS_ALLOC(tsi, sizeof(*tsi)); + tsi = kzalloc(sizeof(*tsi), GFP_NOFS); if (!tsi) { CERROR("Can't allocate test instance for batch: %llu\n", tsb->bat_id.bat_id); @@ -763,7 +763,7 @@ sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) rc = sfw_load_test(tsi); if (rc) { - LIBCFS_FREE(tsi, sizeof(*tsi)); + kfree(tsi); return rc; } @@ -795,7 +795,7 @@ sfw_add_test_instance(struct sfw_batch *tsb, struct srpc_server_rpc *rpc) sfw_unpack_id(id); for (j = 0; j < tsi->tsi_concur; j++) { - LIBCFS_ALLOC(tsu, sizeof(struct sfw_test_unit)); + tsu = kzalloc(sizeof(struct sfw_test_unit), GFP_NOFS); if (!tsu) { rc = -ENOMEM; CERROR("Can't allocate tsu for %d\n", @@ -941,15 +941,13 @@ sfw_create_test_rpc(struct sfw_test_unit *tsu, struct lnet_process_id peer, return 0; } -static int +static void sfw_run_test(struct swi_workitem *wi) { - struct sfw_test_unit *tsu = wi->swi_workitem.wi_data; + struct sfw_test_unit *tsu = container_of(wi, struct sfw_test_unit, tsu_worker); struct sfw_test_instance *tsi = tsu->tsu_instance; struct srpc_client_rpc *rpc = NULL; - LASSERT(wi == &tsu->tsu_worker); - if (tsi->tsi_ops->tso_prep_rpc(tsu, tsu->tsu_dest, &rpc)) { LASSERT(!rpc); goto test_done; @@ -975,7 +973,7 @@ sfw_run_test(struct swi_workitem *wi) rpc->crpc_timeout = rpc_timeout; srpc_post_rpc(rpc); spin_unlock(&rpc->crpc_lock); - return 0; + return; test_done: /* @@ -985,9 +983,7 @@ test_done: * - my batch is still active; no one can run it again now. * Cancel pending schedules and prevent future schedule attempts: */ - swi_exit_workitem(wi); sfw_test_unit_done(tsu); - return 1; } static int @@ -1016,8 +1012,8 @@ sfw_run_batch(struct sfw_batch *tsb) atomic_inc(&tsi->tsi_nactive); tsu->tsu_loop = tsi->tsi_loop; wi = &tsu->tsu_worker; - swi_init_workitem(wi, tsu, sfw_run_test, - lst_sched_test[lnet_cpt_of_nid(tsu->tsu_dest.nid)]); + swi_init_workitem(wi, sfw_run_test, + lst_test_wq[lnet_cpt_of_nid(tsu->tsu_dest.nid)]); swi_schedule_workitem(wi); } } @@ -1767,7 +1763,7 @@ sfw_shutdown(void) struct srpc_client_rpc, crpc_list); list_del(&rpc->crpc_list); - LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); + kfree(rpc); } for (i = 0; ; i++) { @@ -1785,6 +1781,6 @@ sfw_shutdown(void) srpc_wait_service_shutdown(tsc->tsc_srv_service); list_del(&tsc->tsc_list); - LIBCFS_FREE(tsc, sizeof(*tsc)); + kfree(tsc); } } diff --git a/drivers/staging/lustre/lnet/selftest/module.c b/drivers/staging/lustre/lnet/selftest/module.c index 1d44d912f014..7359aa56d9b3 100644 --- a/drivers/staging/lustre/lnet/selftest/module.c +++ b/drivers/staging/lustre/lnet/selftest/module.c @@ -47,8 +47,8 @@ enum { static int lst_init_step = LST_INIT_NONE; -struct cfs_wi_sched *lst_sched_serial; -struct cfs_wi_sched **lst_sched_test; +struct workqueue_struct *lst_serial_wq; +struct workqueue_struct **lst_test_wq; static void lnet_selftest_exit(void) @@ -68,18 +68,16 @@ lnet_selftest_exit(void) case LST_INIT_WI_TEST: for (i = 0; i < cfs_cpt_number(lnet_cpt_table()); i++) { - if (!lst_sched_test[i]) + if (!lst_test_wq[i]) continue; - cfs_wi_sched_destroy(lst_sched_test[i]); + destroy_workqueue(lst_test_wq[i]); } - LIBCFS_FREE(lst_sched_test, - sizeof(lst_sched_test[0]) * - cfs_cpt_number(lnet_cpt_table())); - lst_sched_test = NULL; + kvfree(lst_test_wq); + lst_test_wq = NULL; /* fall through */ case LST_INIT_WI_SERIAL: - cfs_wi_sched_destroy(lst_sched_serial); - lst_sched_serial = NULL; + destroy_workqueue(lst_serial_wq); + lst_serial_wq = NULL; case LST_INIT_NONE: break; default: @@ -91,35 +89,45 @@ static int lnet_selftest_init(void) { int nscheds; - int rc; + int rc = -ENOMEM; int i; - rc = cfs_wi_sched_create("lst_s", lnet_cpt_table(), CFS_CPT_ANY, - 1, &lst_sched_serial); - if (rc) { + lst_serial_wq = alloc_ordered_workqueue("lst_s", 0); + if (!lst_serial_wq) { CERROR("Failed to create serial WI scheduler for LST\n"); - return rc; + return -ENOMEM; } lst_init_step = LST_INIT_WI_SERIAL; nscheds = cfs_cpt_number(lnet_cpt_table()); - LIBCFS_ALLOC(lst_sched_test, sizeof(lst_sched_test[0]) * nscheds); - if (!lst_sched_test) + lst_test_wq = kvmalloc_array(nscheds, sizeof(lst_test_wq[0]), + GFP_KERNEL | __GFP_ZERO); + if (!lst_test_wq) { + rc = -ENOMEM; goto error; + } lst_init_step = LST_INIT_WI_TEST; for (i = 0; i < nscheds; i++) { int nthrs = cfs_cpt_weight(lnet_cpt_table(), i); + struct workqueue_attrs attrs = {0}; + cpumask_var_t *mask = cfs_cpt_cpumask(lnet_cpt_table(), i); /* reserve at least one CPU for LND */ nthrs = max(nthrs - 1, 1); - rc = cfs_wi_sched_create("lst_t", lnet_cpt_table(), i, - nthrs, &lst_sched_test[i]); - if (rc) { + lst_test_wq[i] = alloc_workqueue("lst_t", WQ_UNBOUND, nthrs); + if (!lst_test_wq[i]) { CWARN("Failed to create CPU partition affinity WI scheduler %d for LST\n", i); + rc = -ENOMEM; goto error; } + + if (mask && alloc_cpumask_var(&attrs.cpumask, GFP_KERNEL)) { + cpumask_copy(attrs.cpumask, *mask); + apply_workqueue_attrs(lst_test_wq[i], &attrs); + free_cpumask_var(attrs.cpumask); + } } rc = srpc_startup(); diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c index ab7e8a8e58b8..f8198ad1046e 100644 --- a/drivers/staging/lustre/lnet/selftest/rpc.c +++ b/drivers/staging/lustre/lnet/selftest/rpc.c @@ -68,7 +68,7 @@ srpc_serv_portal(int svc_id) } /* forward ref's */ -int srpc_handle_rpc(struct swi_workitem *wi); +void srpc_handle_rpc(struct swi_workitem *wi); void srpc_get_counters(struct srpc_counters *cnt) { @@ -113,7 +113,7 @@ srpc_free_bulk(struct srpc_bulk *bk) __free_page(pg); } - LIBCFS_FREE(bk, offsetof(struct srpc_bulk, bk_iovs[bk->bk_niov])); + kfree(bk); } struct srpc_bulk * @@ -125,8 +125,8 @@ srpc_alloc_bulk(int cpt, unsigned int bulk_off, unsigned int bulk_npg, LASSERT(bulk_npg > 0 && bulk_npg <= LNET_MAX_IOV); - LIBCFS_CPT_ALLOC(bk, lnet_cpt_table(), cpt, - offsetof(struct srpc_bulk, bk_iovs[bulk_npg])); + bk = kzalloc_cpt(offsetof(struct srpc_bulk, bk_iovs[bulk_npg]), + GFP_KERNEL, cpt); if (!bk) { CERROR("Can't allocate descriptor for %d pages\n", bulk_npg); return NULL; @@ -176,9 +176,9 @@ srpc_init_server_rpc(struct srpc_server_rpc *rpc, struct srpc_buffer *buffer) { memset(rpc, 0, sizeof(*rpc)); - swi_init_workitem(&rpc->srpc_wi, rpc, srpc_handle_rpc, + swi_init_workitem(&rpc->srpc_wi, srpc_handle_rpc, srpc_serv_is_framework(scd->scd_svc) ? - lst_sched_serial : lst_sched_test[scd->scd_cpt]); + lst_serial_wq : lst_test_wq[scd->scd_cpt]); rpc->srpc_ev.ev_fired = 1; /* no event expected now */ @@ -214,7 +214,7 @@ srpc_service_fini(struct srpc_service *svc) buf = list_entry(q->next, struct srpc_buffer, buf_list); list_del(&buf->buf_list); - LIBCFS_FREE(buf, sizeof(*buf)); + kfree(buf); } } @@ -225,7 +225,7 @@ srpc_service_fini(struct srpc_service *svc) struct srpc_server_rpc, srpc_list); list_del(&rpc->srpc_list); - LIBCFS_FREE(rpc, sizeof(*rpc)); + kfree(rpc); } } @@ -242,7 +242,7 @@ srpc_service_nrpcs(struct srpc_service *svc) max(nrpcs, SFW_FRWK_WI_MIN) : max(nrpcs, SFW_TEST_WI_MIN); } -int srpc_add_buffer(struct swi_workitem *wi); +void srpc_add_buffer(struct swi_workitem *wi); static int srpc_service_init(struct srpc_service *svc) @@ -277,11 +277,11 @@ srpc_service_init(struct srpc_service *svc) scd->scd_ev.ev_type = SRPC_REQUEST_RCVD; /* - * NB: don't use lst_sched_serial for adding buffer, + * NB: don't use lst_serial_wq for adding buffer, * see details in srpc_service_add_buffers() */ - swi_init_workitem(&scd->scd_buf_wi, scd, - srpc_add_buffer, lst_sched_test[i]); + swi_init_workitem(&scd->scd_buf_wi, + srpc_add_buffer, lst_test_wq[i]); if (i && srpc_serv_is_framework(svc)) { /* @@ -294,8 +294,7 @@ srpc_service_init(struct srpc_service *svc) } for (j = 0; j < nrpcs; j++) { - LIBCFS_CPT_ALLOC(rpc, lnet_cpt_table(), - i, sizeof(*rpc)); + rpc = kzalloc_cpt(sizeof(*rpc), GFP_NOFS, i); if (!rpc) { srpc_service_fini(svc); return -ENOMEM; @@ -508,16 +507,16 @@ __must_hold(&scd->scd_lock) list_del(&buf->buf_list); spin_unlock(&scd->scd_lock); - LIBCFS_FREE(buf, sizeof(*buf)); + kfree(buf); spin_lock(&scd->scd_lock); return rc; } -int +void srpc_add_buffer(struct swi_workitem *wi) { - struct srpc_service_cd *scd = wi->swi_workitem.wi_data; + struct srpc_service_cd *scd = container_of(wi, struct srpc_service_cd, scd_buf_wi); struct srpc_buffer *buf; int rc = 0; @@ -535,7 +534,7 @@ srpc_add_buffer(struct swi_workitem *wi) spin_unlock(&scd->scd_lock); - LIBCFS_ALLOC(buf, sizeof(*buf)); + buf = kzalloc(sizeof(*buf), GFP_NOFS); if (!buf) { CERROR("Failed to add new buf to service: %s\n", scd->scd_svc->sv_name); @@ -547,7 +546,7 @@ srpc_add_buffer(struct swi_workitem *wi) spin_lock(&scd->scd_lock); if (scd->scd_svc->sv_shuttingdown) { spin_unlock(&scd->scd_lock); - LIBCFS_FREE(buf, sizeof(*buf)); + kfree(buf); spin_lock(&scd->scd_lock); rc = -ESHUTDOWN; @@ -573,7 +572,6 @@ srpc_add_buffer(struct swi_workitem *wi) } spin_unlock(&scd->scd_lock); - return 0; } int @@ -605,15 +603,15 @@ srpc_service_add_buffers(struct srpc_service *sv, int nbuffer) spin_lock(&scd->scd_lock); /* * NB: srpc_service_add_buffers() can be called inside - * thread context of lst_sched_serial, and we don't normally + * thread context of lst_serial_wq, and we don't normally * allow to sleep inside thread context of WI scheduler * because it will block current scheduler thread from doing * anything else, even worse, it could deadlock if it's * waiting on result from another WI of the same scheduler. * However, it's safe at here because scd_buf_wi is scheduled - * by thread in a different WI scheduler (lst_sched_test), + * by thread in a different WI scheduler (lst_test_wq), * so we don't have any risk of deadlock, though this could - * block all WIs pending on lst_sched_serial for a moment + * block all WIs pending on lst_serial_wq for a moment * which is not good but not fatal. */ lst_wait_until(scd->scd_buf_err || @@ -660,11 +658,9 @@ srpc_finish_service(struct srpc_service *sv) LASSERT(sv->sv_shuttingdown); /* srpc_shutdown_service called */ cfs_percpt_for_each(scd, i, sv->sv_cpt_data) { + swi_cancel_workitem(&scd->scd_buf_wi); + spin_lock(&scd->scd_lock); - if (!swi_deschedule_workitem(&scd->scd_buf_wi)) { - spin_unlock(&scd->scd_lock); - return 0; - } if (scd->scd_buf_nposted > 0) { CDEBUG(D_NET, "waiting for %d posted buffers to unlink\n", @@ -680,11 +676,9 @@ srpc_finish_service(struct srpc_service *sv) rpc = list_entry(scd->scd_rpc_active.next, struct srpc_server_rpc, srpc_list); - CNETERR("Active RPC %p on shutdown: sv %s, peer %s, wi %s scheduled %d running %d, ev fired %d type %d status %d lnet %d\n", + CNETERR("Active RPC %p on shutdown: sv %s, peer %s, wi %s, ev fired %d type %d status %d lnet %d\n", rpc, sv->sv_name, libcfs_id2str(rpc->srpc_peer), swi_state2str(rpc->srpc_wi.swi_state), - rpc->srpc_wi.swi_workitem.wi_scheduled, - rpc->srpc_wi.swi_workitem.wi_running, rpc->srpc_ev.ev_fired, rpc->srpc_ev.ev_type, rpc->srpc_ev.ev_status, rpc->srpc_ev.ev_lnet); spin_unlock(&scd->scd_lock); @@ -725,7 +719,7 @@ __must_hold(&scd->scd_lock) } spin_unlock(&scd->scd_lock); - LIBCFS_FREE(buf, sizeof(*buf)); + kfree(buf); spin_lock(&scd->scd_lock); } @@ -947,7 +941,6 @@ srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status) * Cancel pending schedules and prevent future schedule attempts: */ LASSERT(rpc->srpc_ev.ev_fired); - swi_exit_workitem(&rpc->srpc_wi); if (!sv->sv_shuttingdown && !list_empty(&scd->scd_buf_blocked)) { buffer = list_entry(scd->scd_buf_blocked.next, @@ -965,10 +958,10 @@ srpc_server_rpc_done(struct srpc_server_rpc *rpc, int status) } /* handles an incoming RPC */ -int +void srpc_handle_rpc(struct swi_workitem *wi) { - struct srpc_server_rpc *rpc = wi->swi_workitem.wi_data; + struct srpc_server_rpc *rpc = container_of(wi, struct srpc_server_rpc, srpc_wi); struct srpc_service_cd *scd = rpc->srpc_scd; struct srpc_service *sv = scd->scd_svc; struct srpc_event *ev = &rpc->srpc_ev; @@ -987,9 +980,8 @@ srpc_handle_rpc(struct swi_workitem *wi) if (ev->ev_fired) { /* no more event, OK to finish */ srpc_server_rpc_done(rpc, -ESHUTDOWN); - return 1; } - return 0; + return; } spin_unlock(&scd->scd_lock); @@ -1007,7 +999,7 @@ srpc_handle_rpc(struct swi_workitem *wi) if (!msg->msg_magic) { /* moaned already in srpc_lnet_ev_handler */ srpc_server_rpc_done(rpc, EBADMSG); - return 1; + return; } srpc_unpack_msg_hdr(msg); @@ -1023,7 +1015,7 @@ srpc_handle_rpc(struct swi_workitem *wi) LASSERT(!reply->status || !rpc->srpc_bulk); if (rc) { srpc_server_rpc_done(rpc, rc); - return 1; + return; } } @@ -1032,7 +1024,7 @@ srpc_handle_rpc(struct swi_workitem *wi) if (rpc->srpc_bulk) { rc = srpc_do_bulk(rpc); if (!rc) - return 0; /* wait for bulk */ + return; /* wait for bulk */ LASSERT(ev->ev_fired); ev->ev_status = rc; @@ -1050,16 +1042,16 @@ srpc_handle_rpc(struct swi_workitem *wi) if (rc) { srpc_server_rpc_done(rpc, rc); - return 1; + return; } } wi->swi_state = SWI_STATE_REPLY_SUBMITTED; rc = srpc_send_reply(rpc); if (!rc) - return 0; /* wait for reply */ + return; /* wait for reply */ srpc_server_rpc_done(rpc, rc); - return 1; + return; case SWI_STATE_REPLY_SUBMITTED: if (!ev->ev_fired) { @@ -1072,10 +1064,8 @@ srpc_handle_rpc(struct swi_workitem *wi) wi->swi_state = SWI_STATE_DONE; srpc_server_rpc_done(rpc, ev->ev_status); - return 1; + return; } - - return 0; } static void @@ -1170,7 +1160,6 @@ srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status) * Cancel pending schedules and prevent future schedule attempts: */ LASSERT(!srpc_event_pending(rpc)); - swi_exit_workitem(wi); spin_unlock(&rpc->crpc_lock); @@ -1178,7 +1167,7 @@ srpc_client_rpc_done(struct srpc_client_rpc *rpc, int status) } /* sends an outgoing RPC */ -int +void srpc_send_rpc(struct swi_workitem *wi) { int rc = 0; @@ -1188,7 +1177,7 @@ srpc_send_rpc(struct swi_workitem *wi) LASSERT(wi); - rpc = wi->swi_workitem.wi_data; + rpc = container_of(wi, struct srpc_client_rpc, crpc_wi); LASSERT(rpc); LASSERT(wi == &rpc->crpc_wi); @@ -1214,7 +1203,7 @@ srpc_send_rpc(struct swi_workitem *wi) rc = srpc_prepare_reply(rpc); if (rc) { srpc_client_rpc_done(rpc, rc); - return 1; + return; } rc = srpc_prepare_bulk(rpc); @@ -1291,7 +1280,7 @@ srpc_send_rpc(struct swi_workitem *wi) wi->swi_state = SWI_STATE_DONE; srpc_client_rpc_done(rpc, rc); - return 1; + return; } if (rc) { @@ -1308,10 +1297,9 @@ abort: if (!srpc_event_pending(rpc)) { srpc_client_rpc_done(rpc, -EINTR); - return 1; + return; } } - return 0; } struct srpc_client_rpc * @@ -1322,8 +1310,8 @@ srpc_create_client_rpc(struct lnet_process_id peer, int service, { struct srpc_client_rpc *rpc; - LIBCFS_ALLOC(rpc, offsetof(struct srpc_client_rpc, - crpc_bulk.bk_iovs[nbulkiov])); + rpc = kzalloc(offsetof(struct srpc_client_rpc, + crpc_bulk.bk_iovs[nbulkiov]), GFP_KERNEL); if (!rpc) return NULL; diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h index 8c10f0f149d5..ad04534f000c 100644 --- a/drivers/staging/lustre/lnet/selftest/selftest.h +++ b/drivers/staging/lustre/lnet/selftest/selftest.h @@ -169,11 +169,11 @@ struct srpc_buffer { }; struct swi_workitem; -typedef int (*swi_action_t) (struct swi_workitem *); +typedef void (*swi_action_t) (struct swi_workitem *); struct swi_workitem { - struct cfs_wi_sched *swi_sched; - struct cfs_workitem swi_workitem; + struct workqueue_struct *swi_wq; + struct work_struct swi_work; swi_action_t swi_action; int swi_state; }; @@ -444,7 +444,7 @@ void srpc_free_bulk(struct srpc_bulk *bk); struct srpc_bulk *srpc_alloc_bulk(int cpt, unsigned int off, unsigned int bulk_npg, unsigned int bulk_len, int sink); -int srpc_send_rpc(struct swi_workitem *wi); +void srpc_send_rpc(struct swi_workitem *wi); int srpc_send_reply(struct srpc_server_rpc *rpc); int srpc_add_service(struct srpc_service *sv); int srpc_remove_service(struct srpc_service *sv); @@ -456,8 +456,8 @@ void srpc_service_remove_buffers(struct srpc_service *sv, int nbuffer); void srpc_get_counters(struct srpc_counters *cnt); void srpc_set_counters(const struct srpc_counters *cnt); -extern struct cfs_wi_sched *lst_sched_serial; -extern struct cfs_wi_sched **lst_sched_test; +extern struct workqueue_struct *lst_serial_wq; +extern struct workqueue_struct **lst_test_wq; static inline int srpc_serv_is_framework(struct srpc_service *svc) @@ -465,42 +465,36 @@ srpc_serv_is_framework(struct srpc_service *svc) return svc->sv_id < SRPC_FRAMEWORK_SERVICE_MAX_ID; } -static inline int -swi_wi_action(struct cfs_workitem *wi) +static void +swi_wi_action(struct work_struct *wi) { struct swi_workitem *swi; - swi = container_of(wi, struct swi_workitem, swi_workitem); + swi = container_of(wi, struct swi_workitem, swi_work); - return swi->swi_action(swi); + swi->swi_action(swi); } static inline void -swi_init_workitem(struct swi_workitem *swi, void *data, - swi_action_t action, struct cfs_wi_sched *sched) +swi_init_workitem(struct swi_workitem *swi, + swi_action_t action, struct workqueue_struct *wq) { - swi->swi_sched = sched; + swi->swi_wq = wq; swi->swi_action = action; swi->swi_state = SWI_STATE_NEWBORN; - cfs_wi_init(&swi->swi_workitem, data, swi_wi_action); + INIT_WORK(&swi->swi_work, swi_wi_action); } static inline void swi_schedule_workitem(struct swi_workitem *wi) { - cfs_wi_schedule(wi->swi_sched, &wi->swi_workitem); -} - -static inline void -swi_exit_workitem(struct swi_workitem *swi) -{ - cfs_wi_exit(swi->swi_sched, &swi->swi_workitem); + queue_work(wi->swi_wq, &wi->swi_work); } static inline int -swi_deschedule_workitem(struct swi_workitem *swi) +swi_cancel_workitem(struct swi_workitem *swi) { - return cfs_wi_deschedule(swi->swi_sched, &swi->swi_workitem); + return cancel_work_sync(&swi->swi_work); } int sfw_startup(void); @@ -516,7 +510,7 @@ srpc_destroy_client_rpc(struct srpc_client_rpc *rpc) LASSERT(!atomic_read(&rpc->crpc_refcount)); if (!rpc->crpc_fini) - LIBCFS_FREE(rpc, srpc_client_rpc_size(rpc)); + kfree(rpc); else (*rpc->crpc_fini)(rpc); } @@ -533,8 +527,8 @@ srpc_init_client_rpc(struct srpc_client_rpc *rpc, struct lnet_process_id peer, crpc_bulk.bk_iovs[nbulkiov])); INIT_LIST_HEAD(&rpc->crpc_list); - swi_init_workitem(&rpc->crpc_wi, rpc, srpc_send_rpc, - lst_sched_test[lnet_cpt_of_nid(peer.nid)]); + swi_init_workitem(&rpc->crpc_wi, srpc_send_rpc, + lst_test_wq[lnet_cpt_of_nid(peer.nid)]); spin_lock_init(&rpc->crpc_lock); atomic_set(&rpc->crpc_refcount, 1); /* 1 ref for caller */ diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c index 7d6a7106c0a5..ecf8b9e1ed5c 100644 --- a/drivers/staging/lustre/lustre/fld/fld_cache.c +++ b/drivers/staging/lustre/lustre/fld/fld_cache.c @@ -213,19 +213,18 @@ static inline void fld_cache_entry_add(struct fld_cache *cache, */ static int fld_cache_shrink(struct fld_cache *cache) { - struct fld_cache_entry *flde; - struct list_head *curr; int num = 0; if (cache->fci_cache_count < cache->fci_cache_size) return 0; - curr = cache->fci_lru.prev; - while (cache->fci_cache_count + cache->fci_threshold > - cache->fci_cache_size && curr != &cache->fci_lru) { - flde = list_entry(curr, struct fld_cache_entry, fce_lru); - curr = curr->prev; + cache->fci_cache_size && + !list_empty(&cache->fci_lru)) { + struct fld_cache_entry *flde = + list_last_entry(&cache->fci_lru, + struct fld_cache_entry, fce_lru); + fld_cache_entry_delete(cache, flde); num++; } diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h index 8f1a22527006..100e993ab00b 100644 --- a/drivers/staging/lustre/lustre/include/lustre_disk.h +++ b/drivers/staging/lustre/lustre/include/lustre_disk.h @@ -141,9 +141,9 @@ struct lustre_sb_info { /* obd_mount.c */ int lustre_start_mgc(struct super_block *sb); -void lustre_register_client_fill_super(int (*cfs)(struct super_block *sb, - struct vfsmount *mnt)); -void lustre_register_kill_super_cb(void (*cfs)(struct super_block *sb)); +void lustre_register_super_ops(struct module *mod, + int (*cfs)(struct super_block *sb), + void (*ksc)(struct super_block *sb)); int lustre_common_put_super(struct super_block *sb); int mgc_fsname2resid(char *fsname, struct ldlm_res_id *res_id, int type); diff --git a/drivers/staging/lustre/lustre/include/lustre_sec.h b/drivers/staging/lustre/lustre/include/lustre_sec.h index a40f706a53a1..64b6fd4fed8f 100644 --- a/drivers/staging/lustre/lustre/include/lustre_sec.h +++ b/drivers/staging/lustre/lustre/include/lustre_sec.h @@ -341,8 +341,8 @@ void sptlrpc_conf_client_adapt(struct obd_device *obd); #define SPTLRPC_MAX_PAYLOAD (1024) struct vfs_cred { - uint32_t vc_uid; - uint32_t vc_gid; + u32 vc_uid; + u32 vc_gid; }; struct ptlrpc_ctx_ops { diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h index 67c535c5aa98..531e8ddfa9e5 100644 --- a/drivers/staging/lustre/lustre/include/obd_class.h +++ b/drivers/staging/lustre/lustre/include/obd_class.h @@ -40,22 +40,19 @@ #include <lustre_lib.h> #include <lprocfs_status.h> -#define OBD_STATFS_NODELAY 0x0001 /* requests should be send without delay - * and resends for avoid deadlocks - */ -#define OBD_STATFS_FROM_CACHE 0x0002 /* the statfs callback should not update - * obd_osfs_age - */ -#define OBD_STATFS_FOR_MDT0 0x0004 /* The statfs is only for retrieving - * information from MDT0. - */ +/* requests should be send without delay and resends for avoid deadlocks */ +#define OBD_STATFS_NODELAY 0x0001 +/* the statfs callback should not update obd_osfs_age */ +#define OBD_STATFS_FROM_CACHE 0x0002 +/* the statfs is only for retrieving information from MDT0 */ +#define OBD_STATFS_FOR_MDT0 0x0004 /* OBD Device Declarations */ extern struct obd_device *obd_devs[MAX_OBD_DEVICES]; extern rwlock_t obd_dev_lock; /* OBD Operations Declarations */ -struct obd_device *class_exp2obd(struct obd_export *); +struct obd_device *class_exp2obd(struct obd_export *exp); int class_handle_ioctl(unsigned int cmd, unsigned long arg); int lustre_get_jobid(char *jobid); @@ -63,10 +60,10 @@ struct lu_device_type; /* genops.c */ extern struct list_head obd_types; -struct obd_export *class_conn2export(struct lustre_handle *); -int class_register_type(struct obd_ops *, struct md_ops *, - const char *nm, struct lu_device_type *ldt); -int class_unregister_type(const char *nm); +struct obd_export *class_conn2export(struct lustre_handle *conn); +int class_register_type(struct obd_ops *dt_ops, struct md_ops *md_ops, + const char *name, struct lu_device_type *ldt); +int class_unregister_type(const char *name); struct obd_device *class_newdev(const char *type_name, const char *name); void class_release_dev(struct obd_device *obd); @@ -137,7 +134,7 @@ int class_config_llog_handler(const struct lu_env *env, struct llog_rec_hdr *rec, void *data); int class_add_uuid(const char *uuid, __u64 nid); -/*obdecho*/ +/* obdecho */ void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars); #define CFG_F_START 0x01 /* Set when we start updating from a log */ @@ -148,13 +145,13 @@ void lprocfs_echo_init_vars(struct lprocfs_static_vars *lvars); /* Passed as data param to class_config_parse_llog */ struct config_llog_instance { - char *cfg_obdname; - void *cfg_instance; + char *cfg_obdname; + void *cfg_instance; struct super_block *cfg_sb; struct obd_uuid cfg_uuid; llog_cb_t cfg_callback; - int cfg_last_idx; /* for partial llog processing */ - int cfg_flags; + int cfg_last_idx; /* for partial llog processing */ + int cfg_flags; }; int class_config_parse_llog(const struct lu_env *env, struct llog_ctxt *ctxt, @@ -172,30 +169,31 @@ enum { /* list of active configuration logs */ struct config_llog_data { - struct ldlm_res_id cld_resid; + struct ldlm_res_id cld_resid; struct config_llog_instance cld_cfg; - struct list_head cld_list_chain; - atomic_t cld_refcount; + struct list_head cld_list_chain; + atomic_t cld_refcount; struct config_llog_data *cld_sptlrpc;/* depended sptlrpc log */ struct config_llog_data *cld_params; /* common parameters log */ struct config_llog_data *cld_recover;/* imperative recover log */ - struct obd_export *cld_mgcexp; + struct obd_export *cld_mgcexp; struct mutex cld_lock; - int cld_type; - unsigned int cld_stopping:1, /* we were told to stop - * watching - */ - cld_lostlock:1; /* lock not requeued */ - char cld_logname[0]; + int cld_type; + unsigned int cld_stopping:1, /* + * we were told to stop + * watching + */ + cld_lostlock:1; /* lock not requeued */ + char cld_logname[0]; }; struct lustre_profile { - struct list_head lp_list; - char *lp_profile; - char *lp_dt; - char *lp_md; - int lp_refs; - bool lp_list_deleted; + struct list_head lp_list; + char *lp_profile; + char *lp_dt; + char *lp_md; + int lp_refs; + bool lp_list_deleted; }; struct lustre_profile *class_get_profile(const char *prof); @@ -205,9 +203,11 @@ void class_del_profiles(void); #if LUSTRE_TRACKS_LOCK_EXP_REFS -void __class_export_add_lock_ref(struct obd_export *, struct ldlm_lock *); -void __class_export_del_lock_ref(struct obd_export *, struct ldlm_lock *); -extern void (*class_export_dump_hook)(struct obd_export *); +void __class_export_add_lock_ref(struct obd_export *exp, + struct ldlm_lock *lock); +void __class_export_del_lock_ref(struct obd_export *exp, + struct ldlm_lock *lock); +extern void (*class_export_dump_hook)(struct obd_export *exp); #else @@ -223,8 +223,8 @@ struct obd_export *class_new_export(struct obd_device *obddev, struct obd_uuid *cluuid); void class_unlink_export(struct obd_export *exp); -struct obd_import *class_import_get(struct obd_import *); -void class_import_put(struct obd_import *); +struct obd_import *class_import_get(struct obd_import *imp); +void class_import_put(struct obd_import *imp); struct obd_import *class_new_import(struct obd_device *obd); void class_destroy_import(struct obd_import *exp); @@ -299,7 +299,8 @@ void obdo_to_ioobj(const struct obdo *oa, struct obd_ioobj *ioobj); #define MDP(dev, op) (dev)->obd_type->typ_md_ops->op #define CTXTP(ctxt, op) (ctxt)->loc_logops->lop_##op -/* Ensure obd_setup: used for cleanup which must be called +/* + * Ensure obd_setup: used for cleanup which must be called * while obd is stopping */ static inline int obd_check_dev(struct obd_device *obd) @@ -326,108 +327,116 @@ static inline int obd_check_dev_active(struct obd_device *obd) return rc; } -#define OBD_COUNTER_OFFSET(op) \ - ((offsetof(struct obd_ops, op) - \ - offsetof(struct obd_ops, iocontrol)) \ - / sizeof(((struct obd_ops *)(0))->iocontrol)) - -#define OBD_COUNTER_INCREMENT(obdx, op) \ - if ((obdx)->obd_stats) { \ - unsigned int coffset; \ - coffset = (unsigned int)((obdx)->obd_cntr_base) + \ - OBD_COUNTER_OFFSET(op); \ - LASSERT(coffset < (obdx)->obd_stats->ls_num); \ - lprocfs_counter_incr((obdx)->obd_stats, coffset); \ - } +#define OBD_COUNTER_OFFSET(op) \ + ((offsetof(struct obd_ops, op) - \ + offsetof(struct obd_ops, iocontrol)) \ + / sizeof(((struct obd_ops *)(0))->iocontrol)) -#define EXP_COUNTER_INCREMENT(export, op) \ - if ((export)->exp_obd->obd_stats) { \ +#define OBD_COUNTER_INCREMENT(obdx, op) \ +do { \ + if ((obdx)->obd_stats) { \ unsigned int coffset; \ + coffset = (unsigned int)((obdx)->obd_cntr_base) + \ + OBD_COUNTER_OFFSET(op); \ + LASSERT(coffset < (obdx)->obd_stats->ls_num); \ + lprocfs_counter_incr((obdx)->obd_stats, coffset); \ + } \ +} while (0) + +#define EXP_COUNTER_INCREMENT(export, op) \ +do { \ + if ((export)->exp_obd->obd_stats) { \ + unsigned int coffset; \ coffset = (unsigned int)((export)->exp_obd->obd_cntr_base) + \ - OBD_COUNTER_OFFSET(op); \ + OBD_COUNTER_OFFSET(op); \ LASSERT(coffset < (export)->exp_obd->obd_stats->ls_num); \ lprocfs_counter_incr((export)->exp_obd->obd_stats, coffset); \ - } + } \ +} while (0) -#define MD_COUNTER_OFFSET(op) \ - ((offsetof(struct md_ops, op) - \ - offsetof(struct md_ops, getstatus)) \ - / sizeof(((struct md_ops *)(0))->getstatus)) +#define MD_COUNTER_OFFSET(op) \ + ((offsetof(struct md_ops, op) - \ + offsetof(struct md_ops, getstatus)) \ + / sizeof(((struct md_ops *)(0))->getstatus)) -#define MD_COUNTER_INCREMENT(obdx, op) \ - if ((obd)->md_stats) { \ - unsigned int coffset; \ +#define MD_COUNTER_INCREMENT(obdx, op) \ +do { \ + if ((obd)->md_stats) { \ + unsigned int coffset; \ coffset = (unsigned int)((obdx)->md_cntr_base) + \ - MD_COUNTER_OFFSET(op); \ - LASSERT(coffset < (obdx)->md_stats->ls_num); \ + MD_COUNTER_OFFSET(op); \ + LASSERT(coffset < (obdx)->md_stats->ls_num); \ lprocfs_counter_incr((obdx)->md_stats, coffset); \ - } + } \ +} while (0) -#define EXP_MD_COUNTER_INCREMENT(export, op) \ - if ((export)->exp_obd->obd_stats) { \ - unsigned int coffset; \ - coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \ - MD_COUNTER_OFFSET(op); \ - LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \ - lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \ - if ((export)->exp_md_stats) \ - lprocfs_counter_incr( \ +#define EXP_MD_COUNTER_INCREMENT(export, op) \ +do { \ + if ((export)->exp_obd->obd_stats) { \ + unsigned int coffset; \ + coffset = (unsigned int)((export)->exp_obd->md_cntr_base) + \ + MD_COUNTER_OFFSET(op); \ + LASSERT(coffset < (export)->exp_obd->md_stats->ls_num); \ + lprocfs_counter_incr((export)->exp_obd->md_stats, coffset); \ + if ((export)->exp_md_stats) \ + lprocfs_counter_incr( \ (export)->exp_md_stats, coffset); \ - } + } \ +} while (0) #define EXP_CHECK_MD_OP(exp, op) \ -do { \ - if (!(exp)) { \ - CERROR("obd_" #op ": NULL export\n"); \ - return -ENODEV; \ - } \ - if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \ +do { \ + if (!(exp)) { \ + CERROR("obd_" #op ": NULL export\n"); \ + return -ENODEV; \ + } \ + if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \ CERROR("obd_" #op ": cleaned up obd\n"); \ - return -EOPNOTSUPP; \ - } \ - if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \ + return -EOPNOTSUPP; \ + } \ + if (!OBT((exp)->exp_obd) || !MDP((exp)->exp_obd, op)) { \ CERROR("obd_" #op ": dev %s/%d no operation\n", \ - (exp)->exp_obd->obd_name, \ - (exp)->exp_obd->obd_minor); \ - return -EOPNOTSUPP; \ - } \ + (exp)->exp_obd->obd_name, \ + (exp)->exp_obd->obd_minor); \ + return -EOPNOTSUPP; \ + } \ } while (0) -#define OBD_CHECK_DT_OP(obd, op, err) \ -do { \ - if (!OBT(obd) || !OBP((obd), op)) { \ - if (err) \ - CERROR("obd_" #op ": dev %d no operation\n", \ - obd->obd_minor); \ - return err; \ - } \ +#define OBD_CHECK_DT_OP(obd, op, err) \ +do { \ + if (!OBT(obd) || !OBP((obd), op)) { \ + if (err) \ + CERROR("obd_" #op ": dev %d no operation\n", \ + obd->obd_minor); \ + return err; \ + } \ } while (0) #define EXP_CHECK_DT_OP(exp, op) \ -do { \ - if (!(exp)) { \ - CERROR("obd_" #op ": NULL export\n"); \ - return -ENODEV; \ - } \ - if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \ +do { \ + if (!(exp)) { \ + CERROR("obd_" #op ": NULL export\n"); \ + return -ENODEV; \ + } \ + if (!(exp)->exp_obd || !OBT((exp)->exp_obd)) { \ CERROR("obd_" #op ": cleaned up obd\n"); \ - return -EOPNOTSUPP; \ - } \ - if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \ - CERROR("obd_" #op ": dev %d no operation\n", \ - (exp)->exp_obd->obd_minor); \ - return -EOPNOTSUPP; \ - } \ + return -EOPNOTSUPP; \ + } \ + if (!OBT((exp)->exp_obd) || !OBP((exp)->exp_obd, op)) { \ + CERROR("obd_" #op ": dev %d no operation\n", \ + (exp)->exp_obd->obd_minor); \ + return -EOPNOTSUPP; \ + } \ } while (0) -#define CTXT_CHECK_OP(ctxt, op, err) \ -do { \ - if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \ - if (err) \ - CERROR("lop_" #op ": dev %d no operation\n", \ - ctxt->loc_obd->obd_minor); \ - return err; \ - } \ +#define CTXT_CHECK_OP(ctxt, op, err) \ +do { \ + if (!OBT(ctxt->loc_obd) || !CTXTP((ctxt), op)) { \ + if (err) \ + CERROR("lop_" #op ": dev %d no operation\n", \ + ctxt->loc_obd->obd_minor); \ + return err; \ + } \ } while (0) static inline int class_devno_max(void) @@ -481,14 +490,11 @@ static inline int obd_set_info_async(const struct lu_env *env, * obd_precleanup() and obd_cleanup() call both lu_device and obd operations. */ -#define DECLARE_LU_VARS(ldt, d) \ - struct lu_device_type *ldt; \ - struct lu_device *d - static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) { int rc; - DECLARE_LU_VARS(ldt, d); + struct lu_device_type *ldt; + struct lu_device *d; ldt = obd->obd_type->typ_lu; if (ldt) { @@ -526,7 +532,8 @@ static inline int obd_setup(struct obd_device *obd, struct lustre_cfg *cfg) static inline int obd_precleanup(struct obd_device *obd) { int rc; - DECLARE_LU_VARS(ldt, d); + struct lu_device_type *ldt; + struct lu_device *d; rc = obd_check_dev(obd); if (rc) @@ -552,7 +559,8 @@ static inline int obd_precleanup(struct obd_device *obd) static inline int obd_cleanup(struct obd_device *obd) { int rc; - DECLARE_LU_VARS(ldt, d); + struct lu_device_type *ldt; + struct lu_device *d; rc = obd_check_dev(obd); if (rc) @@ -579,7 +587,8 @@ static inline int obd_cleanup(struct obd_device *obd) static inline void obd_cleanup_client_import(struct obd_device *obd) { - /* If we set up but never connected, the + /* + * If we set up but never connected, the * client import will not have been cleaned. */ down_write(&obd->u.cli.cl_sem); @@ -600,7 +609,8 @@ static inline int obd_process_config(struct obd_device *obd, int datalen, void *data) { int rc; - DECLARE_LU_VARS(ldt, d); + struct lu_device_type *ldt; + struct lu_device *d; rc = obd_check_dev(obd); if (rc) @@ -717,7 +727,8 @@ static inline struct obd_uuid *obd_get_uuid(struct obd_export *exp) return uuid; } -/** Create a new /a exp on device /a obd for the uuid /a cluuid +/* + * Create a new /a exp on device /a obd for the uuid /a cluuid * @param exp New export handle * @param d Connect data, supported flags are set, flags also understood * by obd are returned. @@ -729,7 +740,8 @@ static inline int obd_connect(const struct lu_env *env, void *localdata) { int rc; - __u64 ocf = data ? data->ocd_connect_flags : 0; /* for post-condition + __u64 ocf = data ? data->ocd_connect_flags : 0; /* + * for post-condition * check */ @@ -838,7 +850,9 @@ static inline int obd_pool_del(struct obd_device *obd, char *poolname) return rc; } -static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ostname) +static inline int obd_pool_add(struct obd_device *obd, + char *poolname, + char *ostname) { int rc; @@ -849,7 +863,9 @@ static inline int obd_pool_add(struct obd_device *obd, char *poolname, char *ost return rc; } -static inline int obd_pool_rem(struct obd_device *obd, char *poolname, char *ostname) +static inline int obd_pool_rem(struct obd_device *obd, + char *poolname, + char *ostname) { int rc; @@ -894,7 +910,8 @@ static inline int obd_destroy_export(struct obd_export *exp) return 0; } -/* @max_age is the oldest time in jiffies that we accept using a cached data. +/* + * @max_age is the oldest time in jiffies that we accept using a cached data. * If the cache is older than @max_age we will get a new value from the * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */ @@ -955,7 +972,8 @@ static inline int obd_statfs_rqset(struct obd_export *exp, return rc; } -/* @max_age is the oldest time in jiffies that we accept using a cached data. +/* + * @max_age is the oldest time in jiffies that we accept using a cached data. * If the cache is older than @max_age we will get a new value from the * target. Use a value of "cfs_time_current() + HZ" to guarantee freshness. */ @@ -983,7 +1001,8 @@ static inline int obd_statfs(const struct lu_env *env, struct obd_export *exp, spin_unlock(&obd->obd_osfs_lock); } } else { - CDEBUG(D_SUPER, "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n", + CDEBUG(D_SUPER, + "%s: use %p cache blocks %llu/%llu objects %llu/%llu\n", obd->obd_name, &obd->obd_osfs, obd->obd_osfs.os_bavail, obd->obd_osfs.os_blocks, obd->obd_osfs.os_ffree, obd->obd_osfs.os_files); @@ -1118,7 +1137,8 @@ static inline int obd_quotactl(struct obd_export *exp, static inline int obd_health_check(const struct lu_env *env, struct obd_device *obd) { - /* returns: 0 on healthy + /* + * returns: 0 on healthy * >0 on unhealthy + reason code/flag * however the only supported reason == 1 right now * We'll need to define some better reasons @@ -1491,7 +1511,8 @@ static inline int md_get_fid_from_lsm(struct obd_export *exp, return rc; } -/* Unpack an MD struct from disk to in-memory format. +/* + * Unpack an MD struct from disk to in-memory format. * Returns +ve size of unpacked MD (0 for free), or -ve error. * * If *plsm != NULL and lmm == NULL then *lsm will be freed. @@ -1523,11 +1544,12 @@ struct lwp_register_item { struct obd_export **lri_exp; register_lwp_cb lri_cb_func; void *lri_cb_data; - struct list_head lri_list; + struct list_head lri_list; char lri_name[MTI_NAME_MAXLEN]; }; -/* I'm as embarrassed about this as you are. +/* + * I'm as embarrassed about this as you are. * * <shaver> // XXX do not look into _superhack with remaining eye * <shaver> // XXX if this were any uglier, I'd get my own show on MTV @@ -1562,7 +1584,8 @@ int class_procfs_init(void); int class_procfs_clean(void); /* prng.c */ -#define ll_generate_random_uuid(uuid_out) cfs_get_random_bytes(uuid_out, sizeof(class_uuid_t)) +#define ll_generate_random_uuid(uuid_out) \ + get_random_bytes(uuid_out, sizeof(class_uuid_t)) /* statfs_pack.c */ struct kstatfs; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c index fac9d19d50b6..11b11b5f3216 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c @@ -64,7 +64,6 @@ __u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms) { struct ldlm_resource *res = lock->l_resource; - struct list_head *tmp; struct ldlm_lock *lck; __u64 kms = 0; @@ -74,8 +73,7 @@ __u64 ldlm_extent_shift_kms(struct ldlm_lock *lock, __u64 old_kms) */ ldlm_set_kms_ignore(lock); - list_for_each(tmp, &res->lr_granted) { - lck = list_entry(tmp, struct ldlm_lock, l_res_link); + list_for_each_entry(lck, &res->lr_granted, l_res_link) { if (ldlm_is_kms_ignore(lck)) continue; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c index 7cb61e2e7d3b..7cbc6a06afec 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c @@ -886,17 +886,15 @@ static void search_granted_lock(struct list_head *queue, struct ldlm_lock *req, struct sl_insert_point *prev) { - struct list_head *tmp; struct ldlm_lock *lock, *mode_end, *policy_end; - list_for_each(tmp, queue) { - lock = list_entry(tmp, struct ldlm_lock, l_res_link); + list_for_each_entry(lock, queue, l_res_link) { mode_end = list_prev_entry(lock, l_sl_mode); if (lock->l_req_mode != req->l_req_mode) { /* jump to last lock of mode group */ - tmp = &mode_end->l_res_link; + lock = mode_end; continue; } @@ -933,9 +931,7 @@ static void search_granted_lock(struct list_head *queue, break; /* go to next policy group within mode group */ - tmp = policy_end->l_res_link.next; - lock = list_entry(tmp, struct ldlm_lock, - l_res_link); + lock = list_next_entry(policy_end, l_res_link); } /* loop over policy groups within the mode group */ /* insert point is last lock of the mode group, @@ -1687,7 +1683,7 @@ ldlm_work_bl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq) if (list_empty(arg->list)) return -ENOENT; - lock = list_entry(arg->list->next, struct ldlm_lock, l_bl_ast); + lock = list_first_entry(arg->list, struct ldlm_lock, l_bl_ast); /* nobody should touch l_bl_ast */ lock_res_and_lock(lock); @@ -1723,7 +1719,7 @@ ldlm_work_cp_ast_lock(struct ptlrpc_request_set *rqset, void *opaq) if (list_empty(arg->list)) return -ENOENT; - lock = list_entry(arg->list->next, struct ldlm_lock, l_cp_ast); + lock = list_first_entry(arg->list, struct ldlm_lock, l_cp_ast); /* It's possible to receive a completion AST before we've set * the l_completion_ast pointer: either because the AST arrived @@ -1769,7 +1765,7 @@ ldlm_work_revoke_ast_lock(struct ptlrpc_request_set *rqset, void *opaq) if (list_empty(arg->list)) return -ENOENT; - lock = list_entry(arg->list->next, struct ldlm_lock, l_rk_ast); + lock = list_first_entry(arg->list, struct ldlm_lock, l_rk_ast); list_del_init(&lock->l_rk_ast); /* the desc just pretend to exclusive */ @@ -1796,7 +1792,7 @@ static int ldlm_work_gl_ast_lock(struct ptlrpc_request_set *rqset, void *opaq) if (list_empty(arg->list)) return -ENOENT; - gl_work = list_entry(arg->list->next, struct ldlm_glimpse_work, + gl_work = list_first_entry(arg->list, struct ldlm_glimpse_work, gl_list); list_del_init(&gl_work->gl_list); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c index 2d5a2c932ddc..5f6e7c933b81 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c @@ -696,13 +696,13 @@ static int ldlm_bl_get_work(struct ldlm_bl_pool *blp, /* process a request from the blp_list at least every blp_num_threads */ if (!list_empty(&blp->blp_list) && (list_empty(&blp->blp_prio_list) || num_bl == 0)) - blwi = list_entry(blp->blp_list.next, - struct ldlm_bl_work_item, blwi_entry); + blwi = list_first_entry(&blp->blp_list, + struct ldlm_bl_work_item, blwi_entry); else if (!list_empty(&blp->blp_prio_list)) - blwi = list_entry(blp->blp_prio_list.next, - struct ldlm_bl_work_item, - blwi_entry); + blwi = list_first_entry(&blp->blp_prio_list, + struct ldlm_bl_work_item, + blwi_entry); if (blwi) { if (++num_bl >= num_th) @@ -1093,8 +1093,10 @@ static int ldlm_cleanup(void) kset_unregister(ldlm_ns_kset); if (ldlm_svc_kset) kset_unregister(ldlm_svc_kset); - if (ldlm_kobj) + if (ldlm_kobj) { + sysfs_remove_group(ldlm_kobj, &ldlm_attr_group); kobject_put(ldlm_kobj); + } ldlm_debugfs_cleanup(); diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c index da65d00a7811..8563bd32befa 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c @@ -1086,8 +1086,12 @@ int ldlm_pools_init(void) int rc; rc = ldlm_pools_thread_start(); - if (rc == 0) - register_shrinker(&ldlm_pools_cli_shrinker); + if (rc) + return rc; + + rc = register_shrinker(&ldlm_pools_cli_shrinker); + if (rc) + ldlm_pools_thread_stop(); return rc; } diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c index 02ea14c9b089..6aa37463db46 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c @@ -1656,7 +1656,7 @@ int ldlm_cli_cancel_list(struct list_head *cancels, int count, */ while (count > 0) { LASSERT(!list_empty(cancels)); - lock = list_entry(cancels->next, struct ldlm_lock, l_bl_ast); + lock = list_first_entry(cancels, struct ldlm_lock, l_bl_ast); LASSERT(lock->l_conn_export); if (exp_connect_cancelset(lock->l_conn_export)) { @@ -1780,7 +1780,7 @@ EXPORT_SYMBOL(ldlm_cli_cancel_unused); static int ldlm_resource_foreach(struct ldlm_resource *res, ldlm_iterator_t iter, void *closure) { - struct list_head *tmp, *next; + struct ldlm_lock *tmp; struct ldlm_lock *lock; int rc = LDLM_ITER_CONTINUE; @@ -1788,18 +1788,14 @@ static int ldlm_resource_foreach(struct ldlm_resource *res, return LDLM_ITER_CONTINUE; lock_res(res); - list_for_each_safe(tmp, next, &res->lr_granted) { - lock = list_entry(tmp, struct ldlm_lock, l_res_link); - + list_for_each_entry_safe(lock, tmp, &res->lr_granted, l_res_link) { if (iter(lock, closure) == LDLM_ITER_STOP) { rc = LDLM_ITER_STOP; goto out; } } - list_for_each_safe(tmp, next, &res->lr_waiting) { - lock = list_entry(tmp, struct ldlm_lock, l_res_link); - + list_for_each_entry_safe(lock, tmp, &res->lr_waiting, l_res_link) { if (iter(lock, closure) == LDLM_ITER_STOP) { rc = LDLM_ITER_STOP; goto out; diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c index 2689ffdf10e3..9958533cc227 100644 --- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c +++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c @@ -752,24 +752,22 @@ extern struct ldlm_lock *ldlm_lock_get(struct ldlm_lock *lock); static void cleanup_resource(struct ldlm_resource *res, struct list_head *q, __u64 flags) { - struct list_head *tmp; int rc = 0; bool local_only = !!(flags & LDLM_FL_LOCAL_ONLY); do { - struct ldlm_lock *lock = NULL; + struct ldlm_lock *lock = NULL, *tmp; struct lustre_handle lockh; /* First, we look for non-cleaned-yet lock * all cleaned locks are marked by CLEANED flag. */ lock_res(res); - list_for_each(tmp, q) { - lock = list_entry(tmp, struct ldlm_lock, l_res_link); - if (ldlm_is_cleaned(lock)) { - lock = NULL; + list_for_each_entry(tmp, q, l_res_link) { + if (ldlm_is_cleaned(tmp)) continue; - } + + lock = tmp; LDLM_LOCK_GET(lock); ldlm_set_cleaned(lock); break; @@ -1283,19 +1281,15 @@ void ldlm_res2desc(struct ldlm_resource *res, struct ldlm_resource_desc *desc) */ void ldlm_dump_all_namespaces(enum ldlm_side client, int level) { - struct list_head *tmp; + struct ldlm_namespace *ns; if (!((libcfs_debug | D_ERROR) & level)) return; mutex_lock(ldlm_namespace_lock(client)); - list_for_each(tmp, ldlm_namespace_list(client)) { - struct ldlm_namespace *ns; - - ns = list_entry(tmp, struct ldlm_namespace, ns_list_chain); + list_for_each_entry(ns, ldlm_namespace_list(client), ns_list_chain) ldlm_namespace_dump(level, ns); - } mutex_unlock(ldlm_namespace_lock(client)); } diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 6f59045be0f9..99b0b77c75f5 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1337,9 +1337,9 @@ finish_req: cmd == LL_IOC_MDC_GETINFO)) { rc = 0; goto skip_lmm; - } else { - goto out_req; } + + goto out_req; } if (cmd == IOC_MDC_GETFILESTRIPE || diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h index 0d62fcf016dc..f68c2e88f12b 100644 --- a/drivers/staging/lustre/lustre/llite/llite_internal.h +++ b/drivers/staging/lustre/lustre/llite/llite_internal.h @@ -792,7 +792,7 @@ int ll_revalidate_it_finish(struct ptlrpc_request *request, extern struct super_operations lustre_super_operations; void ll_lli_init(struct ll_inode_info *lli); -int ll_fill_super(struct super_block *sb, struct vfsmount *mnt); +int ll_fill_super(struct super_block *sb); void ll_put_super(struct super_block *sb); void ll_kill_super(struct super_block *sb); struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock); diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c index 8666f1e81ade..6735a6f006d2 100644 --- a/drivers/staging/lustre/lustre/llite/llite_lib.c +++ b/drivers/staging/lustre/lustre/llite/llite_lib.c @@ -146,8 +146,7 @@ static void ll_free_sbi(struct super_block *sb) kfree(sbi); } -static int client_common_fill_super(struct super_block *sb, char *md, char *dt, - struct vfsmount *mnt) +static int client_common_fill_super(struct super_block *sb, char *md, char *dt) { struct inode *root = NULL; struct ll_sb_info *sbi = ll_s2sbi(sb); @@ -236,7 +235,9 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n", md); goto out; - } else if (err) { + } + + if (err) { CERROR("cannot connect to %s: rc = %d\n", md, err); goto out; } @@ -865,7 +866,7 @@ void ll_lli_init(struct ll_inode_info *lli) mutex_init(&lli->lli_layout_mutex); } -int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) +int ll_fill_super(struct super_block *sb) { struct lustre_profile *lprof = NULL; struct lustre_sb_info *lsi = s2lsi(sb); @@ -942,7 +943,7 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt) } /* connections, registrations, sb setup */ - err = client_common_fill_super(sb, md, dt, mnt); + err = client_common_fill_super(sb, md, dt); if (!err) sbi->ll_client_common_fill_super_succeeded = 1; diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c index 0bda111a096e..9b0bb3541a84 100644 --- a/drivers/staging/lustre/lustre/llite/super25.c +++ b/drivers/staging/lustre/lustre/llite/super25.c @@ -86,8 +86,7 @@ MODULE_ALIAS_FS("lustre"); static int __init lustre_init(void) { struct lnet_process_id lnet_id; - struct timespec64 ts; - int i, rc, seed[2]; + int i, rc; BUILD_BUG_ON(sizeof(LUSTRE_VOLATILE_HDR) != LUSTRE_VOLATILE_HDR_LEN + 1); @@ -126,22 +125,20 @@ static int __init lustre_init(void) goto out_debugfs; } - cfs_get_random_bytes(seed, sizeof(seed)); - /* Nodes with small feet have little entropy. The NID for this * node gives the most entropy in the low bits */ for (i = 0;; i++) { + u32 seed; + if (LNetGetId(i, &lnet_id) == -ENOENT) break; - - if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) - seed[0] ^= LNET_NIDADDR(lnet_id.nid); + if (LNET_NETTYP(LNET_NIDNET(lnet_id.nid)) != LOLND) { + seed = LNET_NIDADDR(lnet_id.nid); + add_device_randomness(&seed, sizeof(seed)); + } } - ktime_get_ts64(&ts); - cfs_srand(ts.tv_sec ^ seed[0], ts.tv_nsec ^ seed[1]); - rc = vvp_global_init(); if (rc != 0) goto out_sysfs; @@ -159,8 +156,7 @@ static int __init lustre_init(void) if (rc != 0) goto out_inode_fini_env; - lustre_register_client_fill_super(ll_fill_super); - lustre_register_kill_super_cb(ll_kill_super); + lustre_register_super_ops(THIS_MODULE, ll_fill_super, ll_kill_super); lustre_register_client_process_config(ll_process_config); return 0; @@ -181,8 +177,7 @@ out_cache: static void __exit lustre_exit(void) { - lustre_register_client_fill_super(NULL); - lustre_register_kill_super_cb(NULL); + lustre_register_super_ops(NULL, NULL, NULL); lustre_register_client_process_config(NULL); debugfs_remove(llite_root); diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c index 8ccc8b799c02..987c03b058e6 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_dev.c +++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c @@ -384,7 +384,7 @@ int cl_sb_fini(struct super_block *sb) struct vvp_pgcache_id { unsigned int vpi_bucket; unsigned int vpi_depth; - uint32_t vpi_index; + u32 vpi_index; unsigned int vpi_curdep; struct lu_object_header *vpi_obj; diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c index bfae98e82d6f..e7a4778e02e4 100644 --- a/drivers/staging/lustre/lustre/llite/vvp_io.c +++ b/drivers/staging/lustre/lustre/llite/vvp_io.c @@ -699,7 +699,7 @@ static int vvp_io_read_start(const struct lu_env *env, result = vvp_prep_size(env, obj, io, pos, tot, &exceed); if (result != 0) return result; - else if (exceed != 0) + if (exceed != 0) goto out; LU_OBJECT_HEADER(D_INODE, env, &obj->co_lu, diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h index ae28ddf80d9b..a56d71c2dda2 100644 --- a/drivers/staging/lustre/lustre/lov/lov_internal.h +++ b/drivers/staging/lustre/lustre/lov/lov_internal.h @@ -115,19 +115,19 @@ static inline const struct lsm_operations *lsm_op_find(int magic) */ #if BITS_PER_LONG == 64 # define lov_do_div64(n, base) ({ \ - uint64_t __base = (base); \ - uint64_t __rem; \ - __rem = ((uint64_t)(n)) % __base; \ - (n) = ((uint64_t)(n)) / __base; \ + u64 __base = (base); \ + u64 __rem; \ + __rem = ((u64)(n)) % __base; \ + (n) = ((u64)(n)) / __base; \ __rem; \ }) #elif BITS_PER_LONG == 32 # define lov_do_div64(n, base) ({ \ - uint64_t __rem; \ + u64 __rem; \ if ((sizeof(base) > 4) && (((base) & 0xffffffff00000000ULL) != 0)) { \ int __remainder; \ LASSERTF(!((base) & (LOV_MIN_STRIPE_SIZE - 1)), "64 bit lov " \ - "division %llu / %llu\n", (n), (uint64_t)(base)); \ + "division %llu / %llu\n", (n), (u64)(base)); \ __remainder = (n) & (LOV_MIN_STRIPE_SIZE - 1); \ (n) >>= LOV_MIN_STRIPE_BITS; \ __rem = do_div(n, (base) >> LOV_MIN_STRIPE_BITS); \ diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c index 7ce01026a409..ec70c12e5b40 100644 --- a/drivers/staging/lustre/lustre/lov/lov_obd.c +++ b/drivers/staging/lustre/lustre/lov/lov_obd.c @@ -828,11 +828,9 @@ out: static int lov_cleanup(struct obd_device *obd) { struct lov_obd *lov = &obd->u.lov; - struct list_head *pos, *tmp; - struct pool_desc *pool; + struct pool_desc *pool, *tmp; - list_for_each_safe(pos, tmp, &lov->lov_pool_list) { - pool = list_entry(pos, struct pool_desc, pool_list); + list_for_each_entry_safe(pool, tmp, &lov->lov_pool_list, pool_list) { /* free pool structs */ CDEBUG(D_INFO, "delete pool %p\n", pool); /* In the function below, .hs_keycmp resolves to diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c index 105b707eed14..897cf2cd4a24 100644 --- a/drivers/staging/lustre/lustre/lov/lov_object.c +++ b/drivers/staging/lustre/lustre/lov/lov_object.c @@ -1335,7 +1335,7 @@ static int lov_object_fiemap(const struct lu_env *env, struct cl_object *obj, int rc = 0; int cur_stripe; int stripe_count; - struct fiemap_state fs = { 0 }; + struct fiemap_state fs = { NULL }; lsm = lov_lsm_addref(cl2lov(obj)); if (!lsm) diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c index 3bdf48e4edb4..cfa1d7f92b0f 100644 --- a/drivers/staging/lustre/lustre/lov/lov_request.c +++ b/drivers/staging/lustre/lustre/lov/lov_request.c @@ -49,15 +49,13 @@ static void lov_init_set(struct lov_request_set *set) static void lov_finish_set(struct lov_request_set *set) { - struct list_head *pos, *n; + struct lov_request *req; LASSERT(set); - list_for_each_safe(pos, n, &set->set_list) { - struct lov_request *req = list_entry(pos, - struct lov_request, - rq_link); + while ((req = list_first_entry_or_null(&set->set_list, + struct lov_request, + rq_link)) != NULL) { list_del_init(&req->rq_link); - kfree(req->rq_oi.oi_osfs); kfree(req); } diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c index 77fa8fea0249..79ff85feab64 100644 --- a/drivers/staging/lustre/lustre/mgc/mgc_request.c +++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c @@ -523,7 +523,7 @@ static void do_requeue(struct config_llog_data *cld) * in order to not flood the MGS. */ #define MGC_TIMEOUT_MIN_SECONDS 5 -#define MGC_TIMEOUT_RAND_CENTISEC 0x1ff /* ~500 */ +#define MGC_TIMEOUT_RAND_CENTISEC 500 static int mgc_requeue_thread(void *data) { @@ -537,7 +537,7 @@ static int mgc_requeue_thread(void *data) while (!(rq_state & RQ_STOP)) { struct l_wait_info lwi; struct config_llog_data *cld, *cld_prev; - int rand = cfs_rand() & MGC_TIMEOUT_RAND_CENTISEC; + int rand = prandom_u32_max(MGC_TIMEOUT_RAND_CENTISEC); int to; /* Any new or requeued lostlocks will change the state */ diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c index d415f8396038..3b683b774fef 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c @@ -79,13 +79,12 @@ EXPORT_SYMBOL(cl_lock_slice_add); void cl_lock_fini(const struct lu_env *env, struct cl_lock *lock) { + struct cl_lock_slice *slice; cl_lock_trace(D_DLMTRACE, env, "destroy lock", lock); - while (!list_empty(&lock->cll_layers)) { - struct cl_lock_slice *slice; - - slice = list_entry(lock->cll_layers.next, - struct cl_lock_slice, cls_linkage); + while ((slice = list_first_entry_or_null(&lock->cll_layers, + struct cl_lock_slice, + cls_linkage)) != NULL) { list_del_init(lock->cll_layers.next); slice->cls_ops->clo_fini(env, slice); } diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c index fdd27ce46fda..7b18d775b001 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_object.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c @@ -510,13 +510,13 @@ locks: ...... ...... ...... ...... ...... [...... ...... ...... ...... ......] */ lu_site_stats_print(&site->cs_lu, m); cache_stats_print(&site->cs_pages, m, 1); - seq_printf(m, " ["); + seq_puts(m, " ["); for (i = 0; i < ARRAY_SIZE(site->cs_pages_state); ++i) seq_printf(m, "%s: %u ", pstate[i], atomic_read(&site->cs_pages_state[i])); - seq_printf(m, "]\n"); + seq_puts(m, "]\n"); cache_stats_print(&cl_env_stats, m, 0); - seq_printf(m, "\n"); + seq_puts(m, "\n"); return 0; } EXPORT_SYMBOL(cl_site_stats_print); @@ -1017,7 +1017,7 @@ int cl_global_init(void) { int result; - cl_envs = kzalloc(sizeof(*cl_envs) * num_possible_cpus(), GFP_KERNEL); + cl_envs = kcalloc(num_possible_cpus(), sizeof(*cl_envs), GFP_KERNEL); if (!cl_envs) { result = -ENOMEM; goto out; diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c index 7f65439f9b95..d3b25667bc3a 100644 --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c @@ -202,7 +202,7 @@ struct cl_page *cl_page_find(const struct lu_env *env, * vmpage lock is used to protect the child/parent * relationship */ - KLASSERT(PageLocked(vmpage)); + LASSERT(PageLocked(vmpage)); /* * cl_vmpage_page() can be called here without any locks as * @@ -340,7 +340,7 @@ struct cl_page *cl_vmpage_page(struct page *vmpage, struct cl_object *obj) { struct cl_page *page; - KLASSERT(PageLocked(vmpage)); + LASSERT(PageLocked(vmpage)); /* * NOTE: absence of races and liveness of data are guaranteed by page diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c index 2985bca4dc4c..3e24b76f6301 100644 --- a/drivers/staging/lustre/lustre/obdclass/class_obd.c +++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c @@ -377,7 +377,8 @@ static int obd_init_checks(void) char buf[64]; int len, ret = 0; - CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s\n", "%llu", "%lld", "%#llx"); + CDEBUG(D_INFO, "LPU64=%s, LPD64=%s, LPX64=%s\n", "%llu", "%lld", + "%#llx"); CDEBUG(D_INFO, "OBD_OBJECT_EOF = %#llx\n", (__u64)OBD_OBJECT_EOF); diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c index fc59f29a4290..57951237def2 100644 --- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c +++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c @@ -501,6 +501,7 @@ int class_procfs_init(void) rc = debugfs_lustre_root ? PTR_ERR(debugfs_lustre_root) : -ENOMEM; debugfs_lustre_root = NULL; + sysfs_remove_group(lustre_kobj, &lustre_attr_group); kobject_put(lustre_kobj); goto out; } @@ -509,6 +510,7 @@ int class_procfs_init(void) &obd_device_list_fops); if (IS_ERR_OR_NULL(file)) { rc = file ? PTR_ERR(file) : -ENOMEM; + sysfs_remove_group(lustre_kobj, &lustre_attr_group); kobject_put(lustre_kobj); goto out; } @@ -522,6 +524,7 @@ int class_procfs_clean(void) debugfs_lustre_root = NULL; + sysfs_remove_group(lustre_kobj, &lustre_attr_group); kobject_put(lustre_kobj); return 0; diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c index 05d71f568837..e1f4ef2bddd4 100644 --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c @@ -1093,7 +1093,7 @@ int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid) LASSERT((stats->ls_flags & LPROCFS_STATS_FLAG_NOPERCPU) == 0); percpusize = lprocfs_stats_counter_size(stats); - LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[cpuid], percpusize); + stats->ls_percpu[cpuid] = kzalloc(percpusize, GFP_ATOMIC); if (stats->ls_percpu[cpuid]) { rc = 0; if (unlikely(stats->ls_biggest_alloc_num <= cpuid)) { @@ -1137,7 +1137,8 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num, num_entry = num_possible_cpus(); /* alloc percpu pointers for all possible cpu slots */ - LIBCFS_ALLOC(stats, offsetof(typeof(*stats), ls_percpu[num_entry])); + stats = kvzalloc(offsetof(typeof(*stats), ls_percpu[num_entry]), + GFP_KERNEL); if (!stats) return NULL; @@ -1146,15 +1147,16 @@ struct lprocfs_stats *lprocfs_alloc_stats(unsigned int num, spin_lock_init(&stats->ls_lock); /* alloc num of counter headers */ - LIBCFS_ALLOC(stats->ls_cnt_header, - stats->ls_num * sizeof(struct lprocfs_counter_header)); + stats->ls_cnt_header = kvmalloc_array(stats->ls_num, + sizeof(struct lprocfs_counter_header), + GFP_KERNEL | __GFP_ZERO); if (!stats->ls_cnt_header) goto fail; if ((flags & LPROCFS_STATS_FLAG_NOPERCPU) != 0) { /* contains only one set counters */ percpusize = lprocfs_stats_counter_size(stats); - LIBCFS_ALLOC_ATOMIC(stats->ls_percpu[0], percpusize); + stats->ls_percpu[0] = kzalloc(percpusize, GFP_ATOMIC); if (!stats->ls_percpu[0]) goto fail; stats->ls_biggest_alloc_num = 1; @@ -1191,12 +1193,9 @@ void lprocfs_free_stats(struct lprocfs_stats **statsh) percpusize = lprocfs_stats_counter_size(stats); for (i = 0; i < num_entry; i++) - if (stats->ls_percpu[i]) - LIBCFS_FREE(stats->ls_percpu[i], percpusize); - if (stats->ls_cnt_header) - LIBCFS_FREE(stats->ls_cnt_header, stats->ls_num * - sizeof(struct lprocfs_counter_header)); - LIBCFS_FREE(stats, offsetof(typeof(*stats), ls_percpu[num_entry])); + kfree(stats->ls_percpu[i]); + kvfree(stats->ls_cnt_header); + kvfree(stats); } EXPORT_SYMBOL(lprocfs_free_stats); diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c index b938a3f9d50a..2719abbff85f 100644 --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c @@ -1932,8 +1932,10 @@ int lu_global_init(void) LU_CONTEXT_KEY_INIT(&lu_global_key); result = lu_context_key_register(&lu_global_key); - if (result != 0) + if (result != 0) { + lu_ref_global_fini(); return result; + } /* * At this level, we don't know what tags are needed, so allocate them @@ -1943,17 +1945,31 @@ int lu_global_init(void) down_write(&lu_sites_guard); result = lu_env_init(&lu_shrink_env, LCT_SHRINKER); up_write(&lu_sites_guard); - if (result != 0) + if (result != 0) { + lu_context_key_degister(&lu_global_key); + lu_ref_global_fini(); return result; + } /* * seeks estimation: 3 seeks to read a record from oi, one to read * inode, one for ea. Unfortunately setting this high value results in * lu_object/inode cache consuming all the memory. */ - register_shrinker(&lu_site_shrinker); + result = register_shrinker(&lu_site_shrinker); + if (result != 0) { + /* Order explained in lu_global_fini(). */ + lu_context_key_degister(&lu_global_key); - return result; + down_write(&lu_sites_guard); + lu_env_fini(&lu_shrink_env); + up_write(&lu_sites_guard); + + lu_ref_global_fini(); + return result; + } + + return 0; } /** diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c index 71329adc0318..2d6da2431a09 100644 --- a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c +++ b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c @@ -181,8 +181,6 @@ EXPORT_SYMBOL(class_handle_free_cb); int class_handle_init(void) { struct handle_bucket *bucket; - struct timespec64 ts; - int seed[2]; LASSERT(!handle_hash); @@ -198,12 +196,7 @@ int class_handle_init(void) spin_lock_init(&bucket->lock); } - /** bug 21430: add randomness to the initial base */ - cfs_get_random_bytes(seed, sizeof(seed)); - ktime_get_ts64(&ts); - cfs_srand(ts.tv_sec ^ seed[0], ts.tv_nsec ^ seed[1]); - - cfs_get_random_bytes(&handle_base, sizeof(handle_base)); + get_random_bytes(&handle_base, sizeof(handle_base)); LASSERT(handle_base != 0ULL); return 0; diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c index c0e192ae22a9..997c0f9aafb5 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c @@ -236,7 +236,7 @@ static int class_attach(struct lustre_cfg *lcfg) uuid = lustre_cfg_string(lcfg, 2); CDEBUG(D_IOCTL, "attach type %s name: %s uuid: %s\n", - MKSTR(typename), MKSTR(name), MKSTR(uuid)); + typename, name, uuid); obd = class_newdev(typename, name); if (IS_ERR(obd)) { diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c index 2a79a223b98a..acc1ea773c9c 100644 --- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c +++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c @@ -49,9 +49,9 @@ #include <lustre_disk.h> #include <uapi/linux/lustre/lustre_param.h> -static int (*client_fill_super)(struct super_block *sb, - struct vfsmount *mnt); - +static DEFINE_SPINLOCK(client_lock); +static struct module *client_mod; +static int (*client_fill_super)(struct super_block *sb); static void (*kill_super_cb)(struct super_block *sb); /**************** config llog ********************/ @@ -1107,20 +1107,14 @@ invalid: return -EINVAL; } -struct lustre_mount_data2 { - void *lmd2_data; - struct vfsmount *lmd2_mnt; -}; - /** This is the entry point for the mount call into Lustre. * This is called when a server or client is mounted, * and this is where we start setting things up. * @param data Mount options (e.g. -o flock,abort_recov) */ -static int lustre_fill_super(struct super_block *sb, void *data, int silent) +static int lustre_fill_super(struct super_block *sb, void *lmd2_data, int silent) { struct lustre_mount_data *lmd; - struct lustre_mount_data2 *lmd2 = data; struct lustre_sb_info *lsi; int rc; @@ -1143,17 +1137,22 @@ static int lustre_fill_super(struct super_block *sb, void *data, int silent) obd_zombie_barrier(); /* Figure out the lmd from the mount options */ - if (lmd_parse((lmd2->lmd2_data), lmd)) { + if (lmd_parse(lmd2_data, lmd)) { lustre_put_lsi(sb); rc = -EINVAL; goto out; } if (lmd_is_client(lmd)) { + bool have_client = false; CDEBUG(D_MOUNT, "Mounting client %s\n", lmd->lmd_profile); if (!client_fill_super) request_module("lustre"); - if (!client_fill_super) { + spin_lock(&client_lock); + if (client_fill_super && try_module_get(client_mod)) + have_client = true; + spin_unlock(&client_lock); + if (!have_client) { LCONSOLE_ERROR_MSG(0x165, "Nothing registered for client mount! Is the 'lustre' module loaded?\n"); lustre_put_lsi(sb); rc = -ENODEV; @@ -1165,8 +1164,10 @@ static int lustre_fill_super(struct super_block *sb, void *data, int silent) } /* Connect and start */ /* (should always be ll_fill_super) */ - rc = (*client_fill_super)(sb, lmd2->lmd2_mnt); - /* c_f_s will call lustre_common_put_super on failure */ + rc = (*client_fill_super)(sb); + /* c_f_s will call lustre_common_put_super on failure, otherwise + * c_f_s will have taken another reference to the module */ + module_put(client_mod); } } else { CERROR("This is client-side-only module, cannot handle server mount.\n"); @@ -1192,29 +1193,23 @@ out: /* We can't call ll_fill_super by name because it lives in a module that * must be loaded after this one. */ -void lustre_register_client_fill_super(int (*cfs)(struct super_block *sb, - struct vfsmount *mnt)) +void lustre_register_super_ops(struct module *mod, + int (*cfs)(struct super_block *sb), + void (*ksc)(struct super_block *sb)) { + spin_lock(&client_lock); + client_mod = mod; client_fill_super = cfs; + kill_super_cb = ksc; + spin_unlock(&client_lock); } -EXPORT_SYMBOL(lustre_register_client_fill_super); - -void lustre_register_kill_super_cb(void (*cfs)(struct super_block *sb)) -{ - kill_super_cb = cfs; -} -EXPORT_SYMBOL(lustre_register_kill_super_cb); +EXPORT_SYMBOL(lustre_register_super_ops); /***************** FS registration ******************/ static struct dentry *lustre_mount(struct file_system_type *fs_type, int flags, const char *devname, void *data) { - struct lustre_mount_data2 lmd2 = { - .lmd2_data = data, - .lmd2_mnt = NULL - }; - - return mount_nodev(fs_type, flags, &lmd2, lustre_fill_super); + return mount_nodev(fs_type, flags, data, lustre_fill_super); } static void lustre_kill_super(struct super_block *sb) @@ -1230,11 +1225,11 @@ static void lustre_kill_super(struct super_block *sb) /** Register the "lustre" fs type */ static struct file_system_type lustre_fs_type = { - .owner = THIS_MODULE, - .name = "lustre", - .mount = lustre_mount, - .kill_sb = lustre_kill_super, - .fs_flags = FS_REQUIRES_DEV | FS_RENAME_DOES_D_MOVE, + .owner = THIS_MODULE, + .name = "lustre", + .mount = lustre_mount, + .kill_sb = lustre_kill_super, + .fs_flags = FS_RENAME_DOES_D_MOVE, }; MODULE_ALIAS_FS("lustre"); diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h index feda61bcdb9b..32db150fd42e 100644 --- a/drivers/staging/lustre/lustre/osc/osc_internal.h +++ b/drivers/staging/lustre/lustre/osc/osc_internal.h @@ -168,9 +168,9 @@ struct osc_device { /* Write stats is actually protected by client_obd's lock. */ struct osc_stats { - uint64_t os_lockless_writes; /* by bytes */ - uint64_t os_lockless_reads; /* by bytes */ - uint64_t os_lockless_truncates; /* by times */ + u64 os_lockless_writes; /* by bytes */ + u64 os_lockless_reads; /* by bytes */ + u64 os_lockless_truncates; /* by times */ } od_stats; /* configuration item(s) */ diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c index 53eda4c99142..45b1ebf33363 100644 --- a/drivers/staging/lustre/lustre/osc/osc_request.c +++ b/drivers/staging/lustre/lustre/osc/osc_request.c @@ -2844,7 +2844,9 @@ static int __init osc_init(void) if (rc) goto out_kmem; - register_shrinker(&osc_cache_shrinker); + rc = register_shrinker(&osc_cache_shrinker); + if (rc) + goto out_type; /* This is obviously too much memory, only prevent overflow here */ if (osc_reqpool_mem_max >= 1 << 12 || osc_reqpool_mem_max == 0) { diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c index 2a9f2f2ebaa8..bac4b2304bad 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/client.c +++ b/drivers/staging/lustre/lustre/ptlrpc/client.c @@ -3067,7 +3067,7 @@ void ptlrpc_init_xid(void) spin_lock_init(&ptlrpc_last_xid_lock); if (now < YEAR_2004) { - cfs_get_random_bytes(&ptlrpc_last_xid, sizeof(ptlrpc_last_xid)); + get_random_bytes(&ptlrpc_last_xid, sizeof(ptlrpc_last_xid)); ptlrpc_last_xid >>= 2; ptlrpc_last_xid |= (1ULL << 61); } else { diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c index 77a3721beaee..134ee727e8b7 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c @@ -396,6 +396,8 @@ static struct shrinker pools_shrinker = { int sptlrpc_enc_pool_init(void) { + int rc; + /* * maximum capacity is 1/8 of total physical memory. * is the 1/8 a good number? @@ -432,9 +434,11 @@ int sptlrpc_enc_pool_init(void) if (!page_pools.epp_pools) return -ENOMEM; - register_shrinker(&pools_shrinker); + rc = register_shrinker(&pools_shrinker); + if (rc) + enc_pools_free(); - return 0; + return rc; } void sptlrpc_enc_pool_fini(void) diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index bb1d6dafca83..26994b429cf2 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -207,13 +207,9 @@ static irqreturn_t csi_idmac_eof_interrupt(int irq, void *dev_id) goto unlock; } - if (priv->fim) { - struct timespec cur_ts; - - ktime_get_ts(&cur_ts); + if (priv->fim) /* call frame interval monitor */ - imx_media_fim_eof_monitor(priv->fim, &cur_ts); - } + imx_media_fim_eof_monitor(priv->fim, ktime_get()); csi_vb2_buf_done(priv); diff --git a/drivers/staging/media/imx/imx-media-fim.c b/drivers/staging/media/imx/imx-media-fim.c index 47275ef803f3..6df189135db8 100644 --- a/drivers/staging/media/imx/imx-media-fim.c +++ b/drivers/staging/media/imx/imx-media-fim.c @@ -66,7 +66,7 @@ struct imx_media_fim { int icap_flags; int counter; - struct timespec last_ts; + ktime_t last_ts; unsigned long sum; /* usec */ unsigned long nominal; /* usec */ @@ -147,22 +147,26 @@ static void send_fim_event(struct imx_media_fim *fim, unsigned long error) * (presumably random) interrupt latency. */ static void frame_interval_monitor(struct imx_media_fim *fim, - struct timespec *ts) + ktime_t timestamp) { - unsigned long interval, error, error_avg; + long long interval, error; + unsigned long error_avg; bool send_event = false; - struct timespec diff; if (!fim->enabled || ++fim->counter <= 0) goto out_update_ts; - diff = timespec_sub(*ts, fim->last_ts); - interval = diff.tv_sec * 1000 * 1000 + diff.tv_nsec / 1000; - error = abs(interval - fim->nominal); + /* max error is less than l00µs, so use 32-bit division or fail */ + interval = ktime_to_ns(ktime_sub(timestamp, fim->last_ts)); + error = abs(interval - NSEC_PER_USEC * (u64)fim->nominal); + if (error > U32_MAX) + error = U32_MAX; + else + error = abs((u32)error / NSEC_PER_USEC); if (fim->tolerance_max && error >= fim->tolerance_max) { dev_dbg(fim->sd->dev, - "FIM: %lu ignored, out of tolerance bounds\n", + "FIM: %llu ignored, out of tolerance bounds\n", error); fim->counter--; goto out_update_ts; @@ -184,7 +188,7 @@ static void frame_interval_monitor(struct imx_media_fim *fim, } out_update_ts: - fim->last_ts = *ts; + fim->last_ts = timestamp; if (send_event) send_fim_event(fim, error_avg); } @@ -195,14 +199,14 @@ out_update_ts: * to interrupt latency. */ static void fim_input_capture_handler(int channel, void *dev_id, - struct timespec *ts) + ktime_t timestamp) { struct imx_media_fim *fim = dev_id; unsigned long flags; spin_lock_irqsave(&fim->lock, flags); - frame_interval_monitor(fim, ts); + frame_interval_monitor(fim, timestamp); if (!completion_done(&fim->icap_first_event)) complete(&fim->icap_first_event); @@ -405,14 +409,14 @@ err_free: * the frame_interval_monitor() is called by the input capture event * callback handler in that case. */ -void imx_media_fim_eof_monitor(struct imx_media_fim *fim, struct timespec *ts) +void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp) { unsigned long flags; spin_lock_irqsave(&fim->lock, flags); if (!icap_enabled(fim)) - frame_interval_monitor(fim, ts); + frame_interval_monitor(fim, timestamp); spin_unlock_irqrestore(&fim->lock, flags); } diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h index d409170632bd..ac3ab115394f 100644 --- a/drivers/staging/media/imx/imx-media.h +++ b/drivers/staging/media/imx/imx-media.h @@ -280,7 +280,7 @@ int imx_media_pipeline_set_stream(struct imx_media_dev *imxmd, /* imx-media-fim.c */ struct imx_media_fim; -void imx_media_fim_eof_monitor(struct imx_media_fim *fim, struct timespec *ts); +void imx_media_fim_eof_monitor(struct imx_media_fim *fim, ktime_t timestamp); int imx_media_fim_set_stream(struct imx_media_fim *fim, const struct v4l2_fract *frame_interval, bool on); diff --git a/drivers/staging/most/Documentation/ABI/sysfs-bus-most.txt b/drivers/staging/most/Documentation/ABI/sysfs-bus-most.txt new file mode 100644 index 000000000000..d8fa841e3742 --- /dev/null +++ b/drivers/staging/most/Documentation/ABI/sysfs-bus-most.txt @@ -0,0 +1,313 @@ +What: /sys/bus/most/devices/.../description +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Provides information about the interface type and the physical + location of the device. Hardware attached via USB, for instance, + might return <usb_device 1-1.1:1.0> +Users: + +What: /sys/bus/most/devices/.../interface +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the type of peripheral interface the device uses. +Users: + +What: /sys/bus/most/devices/.../dci +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + If the network interface controller is attached via USB, a dci + directory is created that allows applications to read and + write the controller's DCI registers. +Users: + +What: /sys/bus/most/devices/.../dci/arb_address +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to set an arbitrary DCI register address an + application wants to read from or write to. +Users: + +What: /sys/bus/most/devices/.../dci/arb_value +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to read and write the DCI register whose address + is stored in arb_address. +Users: + +What: /sys/bus/most/devices/.../dci/mep_eui48_hi +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MAC address. +Users: + +What: /sys/bus/most/devices/.../dci/mep_eui48_lo +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MAC address. +Users: + +What: /sys/bus/most/devices/.../dci/mep_eui48_mi +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MAC address. +Users: + +What: /sys/bus/most/devices/.../dci/mep_filter +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MEP filter address. +Users: + +What: /sys/bus/most/devices/.../dci/mep_hash0 +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MEP hash table. +Users: + +What: /sys/bus/most/devices/.../dci/mep_hash1 +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MEP hash table. +Users: + +What: /sys/bus/most/devices/.../dci/mep_hash2 +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MEP hash table. +Users: + +What: /sys/bus/most/devices/.../dci/mep_hash3 +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to check and configure the MEP hash table. +Users: + +What: /sys/bus/most/devices/.../dci/ni_state +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the current network interface state. +Users: + +What: /sys/bus/most/devices/.../dci/node_address +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the current node address. +Users: + +What: /sys/bus/most/devices/.../dci/node_position +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the current node position. +Users: + +What: /sys/bus/most/devices/.../dci/packet_bandwidth +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the configured packet bandwidth. +Users: + +What: /sys/bus/most/devices/.../dci/sync_ep +Date: June 2016 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Triggers the controller's synchronization process for a certain + endpoint. +Users: + +What: /sys/bus/most/devices/.../<channel>/ +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + For every channel of the device a directory is created, whose + name is dictated by the HDM. This enables an application to + collect information about the channel's capabilities and + configure it. +Users: + +What: /sys/bus/most/devices/.../<channel>/available_datatypes +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the data types the current channel can transport. +Users: + +What: /sys/bus/most/devices/.../<channel>/available_directions +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the directions the current channel is capable of. +Users: + +What: /sys/bus/most/devices/.../<channel>/number_of_packet_buffers +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the number of packet buffers the current channel can + handle. +Users: + +What: /sys/bus/most/devices/.../<channel>/number_of_stream_buffers +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the number of streaming buffers the current channel can + handle. +Users: + +What: /sys/bus/most/devices/.../<channel>/size_of_packet_buffer +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the size of a packet buffer the current channel can + handle. +Users: + +What: /sys/bus/most/devices/.../<channel>/size_of_stream_buffer +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates the size of a streaming buffer the current channel can + handle. +Users: + +What: /sys/bus/most/devices/.../<channel>/set_number_of_buffers +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is to configure the number of buffers of the current channel. +Users: + +What: /sys/bus/most/devices/.../<channel>/set_buffer_size +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is to configure the size of a buffer of the current channel. +Users: + +What: /sys/bus/most/devices/.../<channel>/set_direction +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is to configure the direction of the current channel. + The following strings will be accepted: + 'dir_tx', + 'dir_rx' +Users: + +What: /sys/bus/most/devices/.../<channel>/set_datatype +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is to configure the data type of the current channel. + The following strings will be accepted: + 'control', + 'async', + 'sync', + 'isoc_avp' +Users: + +What: /sys/bus/most/devices/.../<channel>/set_subbuffer_size +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is to configure the subbuffer size of the current channel. +Users: + +What: /sys/bus/most/devices/.../<channel>/set_packets_per_xact +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is to configure the number of packets per transaction of + the current channel. This is only needed network interface + controller is attached via USB. +Users: + +What: /sys/bus/most/devices/.../<channel>/channel_starving +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + Indicates whether current channel ran out of buffers. +Users: + +What: /sys/bus/most/drivers/mostcore/add_link +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to link a channel to a component of the + mostcore. A link created by writing to this file is + referred to as pipe. +Users: + +What: /sys/bus/most/drivers/mostcore/remove_link +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to unlink a channel from a component. +Users: + +What: /sys/bus/most/drivers/mostcore/components +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to retrieve a list of registered components. +Users: + +What: /sys/bus/most/drivers/mostcore/links +Date: March 2017 +KernelVersion: 4.15 +Contact: Christian Gromm <christian.gromm@microchip.com> +Description: + This is used to retrieve a list of established links. +Users: diff --git a/drivers/staging/most/Documentation/driver_usage.txt b/drivers/staging/most/Documentation/driver_usage.txt index a4dc0c348fbc..bb9b4e870199 100644 --- a/drivers/staging/most/Documentation/driver_usage.txt +++ b/drivers/staging/most/Documentation/driver_usage.txt @@ -23,20 +23,29 @@ audio/video streaming. Therefore, the driver perfectly fits to the mission of Automotive Grade Linux to create open source software solutions for automotive applications. -The driver consists basically of three layers. The hardware layer, the -core layer and the application layer. The core layer consists of the core -module only. This module handles the communication flow through all three -layers, the configuration of the driver, the configuration interface -representation in sysfs, and the buffer management. -For each of the other two layers a selection of modules is provided. These -modules can arbitrarily be combined to meet the needs of the desired -system architecture. A module of the hardware layer is referred to as an -HDM (hardware dependent module). Each module of this layer handles exactly -one of the peripheral interfaces of a network interface controller (e.g. -USB, MediaLB, I2C). A module of the application layer is referred to as an -AIM (application interfacing module). The modules of this layer give access -to MOST via one the following ways: character devices, ALSA, Networking or -V4L2. +The MOST driver uses module stacking to divide the associated modules into +three layers. From bottom up these layers are: the adapter layer, the core +layer and the application layer. The core layer implements the MOST +subsystem and consists basically of the module core.c and its API. It +registers the MOST bus with the kernel's device model, handles the data +routing through all three layers, the configuration of the driver, the +representation of the configuration interface in sysfs and the buffer +management. + +For each of the other two layers a set of modules is provided. Those can be +arbitrarily combined with the core to meet the connectivity of the desired +system architecture. + +A module of the adapter layer is basically a device driver for a different +subsystem. It is registered with the core to connect the MOST subsystem to +the attached network interface controller hardware. Hence, a given module +of this layer is designed to handle exactly one of the peripheral +interfaces (e.g. USB, MediaLB, I2C) the hardware provides. + +A module of the application layer is referred to as a core comoponent, +which kind of extends the core by providing connectivity to the user space. +Applications, then, can access a MOST network via character devices, an +ALSA soundcard, a Network adapter or a V4L2 capture device. To physically access MOST, an Intelligent Network Interface Controller (INIC) is needed. For more information on available controllers visit: @@ -44,15 +53,14 @@ www.microchip.com - Section 1.1 Hardware Layer + Section 1.1 Adapter Layer -The hardware layer contains so called hardware dependent modules (HDM). For each -peripheral interface the hardware supports the driver has a suitable module -that handles the interface. - -The HDMs encapsulate the peripheral interface specific knowledge of the driver -and provides an easy way of extending the number of supported interfaces. -Currently the following HDMs are available: +The adapter layer contains a pool of device drivers. For each peripheral +interface the hardware supports there is one suitable module that handles +the interface. Adapter drivers encapsulate the peripheral interface +specific knowledge of the MOST driver stack and provide an easy way of +extending the number of supported interfaces. Currently the following +interfaces are available: 1) MediaLB (DIM2) Host wants to communicate with hardware via MediaLB. @@ -63,26 +71,34 @@ Currently the following HDMs are available: 3) USB Host wants to communicate with the hardware via USB. +Once an adapter driver recognizes a MOST device being attached, it +registers it with the core, which, in turn, assigns the necessary members +of the embedded struct device (e.g. the bus this device belongs to and +attribute groups) and registers it with the kernel's device model. - Section 1.2 Core Layer - -The core layer contains the mostcore module only, which processes the driver -configuration via sysfs, buffer management and data forwarding. + Section 1.2 Core Layer +This layer implements the MOST subsystem. It contains the core module and +the header file most.h that exposes the API of the core. When inserted in +the kernel, it registers the MOST bus_type with the kernel's device model +and registers itself as a device driver for this bus. Besides these meta +tasks the core populates the configuration directory for a registered MOST +device (represented by struct most_interface) in sysfs and processes the +configuration of the device's interface. The core layer also handles the +buffer management and the data/message routing. - Section 1.2 Application Layer -The application layer contains so called application interfacing modules (AIM). -Depending on how the driver should interface to the application, one or more -suitable modules can be selected. + Section 1.3 Application Layer -The AIMs encapsulate the application interface specific knowledge of the driver -and provides access to user space or other kernel subsystems. -Currently the following AIMs are available +This layer contains a pool of device drivers that are components of the +core designed to make up the userspace experience of the MOST driver stack. +Depending on how an application is meant to interface the driver, one or +more modules of this pool can be registered with the core. Currently the +following components are available 1) Character Device - Applications can access the driver by means of character devices. + Userspace can access the driver by means of character devices. 2) Networking Standard networking applications (e.g. iperf) can by used to access @@ -97,84 +113,86 @@ Currently the following AIMs are available used to access the driver via the ALSA subsystem. + Section 2 Usage of the MOST Driver - Section 2 Configuration + Section 2.1 Configuration -See ABI/sysfs-class-most.txt +See ABI/sysfs-bus-most.txt + Section 2.2 Routing Channels - Section 3 USB Padding +To connect a configured channel to a certain core component and make it +accessible for user space applications, the driver attribute 'add_link' is +used. The configuration string passed to it has the following format: -When transceiving synchronous or isochronous data, the number of packets per USB -transaction and the sub-buffer size need to be configured. These values -are needed for the driver to process buffer padding, as expected by hardware, -which is for performance optimization purposes of the USB transmission. + "device_name:channel_name:component_name:link_name[.param]" -When transmitting synchronous data the allocated channel width needs to be -written to 'set_subbuffer_size'. Additionally, the number of MOST frames that -should travel to the host within one USB transaction need to be written to -'packets_per_xact'. +It is the concatenation of up to four substrings separated by a colon. The +substrings contain the names of the MOST interface, the channel, the +component driver and a custom name with which the link is going to be +referenced with. Since some components need additional information, the +link name can be extended with a component-specific parameter (separated by +a dot). In case the character device component is loaded, the handle would +also appear as a device node in the /dev directory. -Internally the synchronous threshold is calculated as follows: +Cdev component example: + $ echo "mdev0:ep_81:cdev:my_rx_channel" >$(DRV_DIR)/add_link - frame_size = set_subbuffer_size * packets_per_xact -In case 'packets_per_xact' is set to 0xFF the maximum number of packets, -allocated within one MOST frame, is calculated that fit into _one_ 512 byte -USB full packet. +Sound component example: - frame_size = floor(MTU_USB / bandwidth_sync) * bandwidth_sync +The sound component needs an additional parameter to determine the audio +resolution that is going to be used. The following formats are available: -This frame_size is the number of synchronous data within an USB transaction, -which renders MTU_USB - frame_size bytes for padding. + - "1x8" (Mono) + - "2x16" (16-bit stereo) + - "2x24" (24-bit stereo) + - "2x32" (32-bit stereo) + - "6x16" (16-bit surround 5.1) -When transmitting isochronous AVP data the desired packet size needs to be -written to 'set_subbuffer_size' and hardware will always expect two isochronous -packets within one USB transaction. This renders + $ echo "mdev0:ep_81:sound:most51_playback.6x16" >$(DRV_DIR)/add_link - MTU_USB - (2 * set_subbuffer_size) -bytes for padding. - -Note that at least 2 times set_subbuffer_size bytes for isochronous data or -set_subbuffer_size times packts_per_xact bytes for synchronous data need to be -put in the transmission buffer and passed to the driver. -Since HDMs are allowed to change a chosen configuration to best fit its -constraints, it is recommended to always double check the configuration and read -back the previously written files. + Section 2.3 USB Padding +When transceiving synchronous or isochronous data, the number of packets +per USB transaction and the sub-buffer size need to be configured. These +values are needed for the driver to process buffer padding, as expected by +hardware, which is for performance optimization purposes of the USB +transmission. +When transmitting synchronous data the allocated channel width needs to be +written to 'set_subbuffer_size'. Additionally, the number of MOST frames +that should travel to the host within one USB transaction need to be +written to 'packets_per_xact'. - Section 4 Routing Channels +The driver, then, calculates the synchronous threshold as follows: -To connect a channel that has been configured as outlined above to an AIM and -make it accessible to user space applications, the attribute file 'add_link' is -used. To actually bind a channel to the AIM a string needs to be written to the -file that complies with the following syntax: + frame_size = set_subbuffer_size * packets_per_xact - "most_device:channel_name:link_name[.param]" +In case 'packets_per_xact' is set to 0xFF the maximum number of packets, +allocated within one MOST frame, is calculated that fit into _one_ 512 byte +USB full packet. -The example above links the channel "channel_name" of the device "most_device" -to the AIM. In case the AIM interfaces the VFS this would also create a device -node "link_name" in the /dev directory. The parameter "param" is an AIM dependent -string, which can be omitted in case the used AIM does not make any use of it. + frame_size = floor(MTU_USB / bandwidth_sync) * bandwidth_sync -Cdev AIM example: - $ echo "mdev0:ep_81:my_rx_channel" >add_link - $ echo "mdev0:ep_81" >add_link +This frame_size is the number of synchronous data within an USB +transaction, which renders MTU_USB - frame_size bytes for padding. +When transmitting isochronous AVP data the desired packet size needs to be +written to 'set_subbuffer_size' and hardware will always expect two +isochronous packets within one USB transaction. This renders -Sound/ALSA AIM example: + MTU_USB - (2 * set_subbuffer_size) -The sound/ALSA AIM needs an additional parameter to determine the audio resolution -that is going to be used. The following strings can be used: +bytes for padding. - - "1x8" (Mono) - - "2x16" (16-bit stereo) - - "2x24" (24-bit stereo) - - "2x32" (32-bit stereo) +Note that at least (2 * set_subbuffer_size) bytes for isochronous data or +(set_subbuffer_size * packts_per_xact) bytes for synchronous data need to +be put in the transmission buffer and passed to the driver. - $ echo "mdev0:ep_81:audio_rx.2x16" >add_link - $ echo "mdev0:ep_81" >add_link +Since adapter drivers are allowed to change a chosen configuration to best +fit its constraints, it is recommended to always double check the +configuration and read back the previously written files. diff --git a/drivers/staging/most/Kconfig b/drivers/staging/most/Kconfig index 0b9b9b539f70..20047abbe560 100644 --- a/drivers/staging/most/Kconfig +++ b/drivers/staging/most/Kconfig @@ -1,10 +1,15 @@ menuconfig MOST - tristate "MOST driver" + tristate "MOST support" depends on HAS_DMA - select MOSTCORE default n ---help--- - This option allows you to enable support for MOST Network transceivers. + Say Y here if you want to enable MOST support. + This driver needs at least one additional component to enable the + desired access from userspace (e.g. character devices) and one that + matches the network controller's hardware interface (e.g. USB). + + To compile this driver as a module, choose M here: the + module will be called most_core. If in doubt, say N here. @@ -12,20 +17,18 @@ menuconfig MOST if MOST -source "drivers/staging/most/mostcore/Kconfig" - -source "drivers/staging/most/aim-cdev/Kconfig" +source "drivers/staging/most/cdev/Kconfig" -source "drivers/staging/most/aim-network/Kconfig" +source "drivers/staging/most/net/Kconfig" -source "drivers/staging/most/aim-sound/Kconfig" +source "drivers/staging/most/sound/Kconfig" -source "drivers/staging/most/aim-v4l2/Kconfig" +source "drivers/staging/most/video/Kconfig" -source "drivers/staging/most/hdm-dim2/Kconfig" +source "drivers/staging/most/dim2/Kconfig" -source "drivers/staging/most/hdm-i2c/Kconfig" +source "drivers/staging/most/i2c/Kconfig" -source "drivers/staging/most/hdm-usb/Kconfig" +source "drivers/staging/most/usb/Kconfig" endif diff --git a/drivers/staging/most/Makefile b/drivers/staging/most/Makefile index f5bbb9deaab5..f8bcf488ecf2 100644 --- a/drivers/staging/most/Makefile +++ b/drivers/staging/most/Makefile @@ -1,9 +1,12 @@ # SPDX-License-Identifier: GPL-2.0 -obj-$(CONFIG_MOSTCORE) += mostcore/ -obj-$(CONFIG_AIM_CDEV) += aim-cdev/ -obj-$(CONFIG_AIM_NETWORK) += aim-network/ -obj-$(CONFIG_AIM_SOUND) += aim-sound/ -obj-$(CONFIG_AIM_V4L2) += aim-v4l2/ -obj-$(CONFIG_HDM_DIM2) += hdm-dim2/ -obj-$(CONFIG_HDM_I2C) += hdm-i2c/ -obj-$(CONFIG_HDM_USB) += hdm-usb/ +obj-$(CONFIG_MOST) += most_core.o +most_core-y := core.o +ccflags-y += -Idrivers/staging/ + +obj-$(CONFIG_MOST_CDEV) += cdev/ +obj-$(CONFIG_MOST_NET) += net/ +obj-$(CONFIG_MOST_SOUND) += sound/ +obj-$(CONFIG_MOST_VIDEO) += video/ +obj-$(CONFIG_MOST_DIM2) += dim2/ +obj-$(CONFIG_MOST_I2C) += i2c/ +obj-$(CONFIG_MOST_USB) += usb/ diff --git a/drivers/staging/most/aim-cdev/Makefile b/drivers/staging/most/aim-cdev/Makefile deleted file mode 100644 index 0bcc6c637b75..000000000000 --- a/drivers/staging/most/aim-cdev/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -obj-$(CONFIG_AIM_CDEV) += aim_cdev.o - -aim_cdev-objs := cdev.o -ccflags-y += -Idrivers/staging/most/mostcore/
\ No newline at end of file diff --git a/drivers/staging/most/aim-network/Makefile b/drivers/staging/most/aim-network/Makefile deleted file mode 100644 index 840c1dd94873..000000000000 --- a/drivers/staging/most/aim-network/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -obj-$(CONFIG_AIM_NETWORK) += aim_network.o - -aim_network-objs := networking.o -ccflags-y += -Idrivers/staging/most/mostcore/ diff --git a/drivers/staging/most/aim-sound/Makefile b/drivers/staging/most/aim-sound/Makefile deleted file mode 100644 index beba9586fd28..000000000000 --- a/drivers/staging/most/aim-sound/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -obj-$(CONFIG_AIM_SOUND) += aim_sound.o - -aim_sound-objs := sound.o -ccflags-y += -Idrivers/staging/most/mostcore/ diff --git a/drivers/staging/most/aim-v4l2/Makefile b/drivers/staging/most/aim-v4l2/Makefile deleted file mode 100644 index 69a7524b466c..000000000000 --- a/drivers/staging/most/aim-v4l2/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-$(CONFIG_AIM_V4L2) += aim_v4l2.o - -aim_v4l2-objs := video.o - -ccflags-y += -Idrivers/staging/most/mostcore/ diff --git a/drivers/staging/most/aim-cdev/Kconfig b/drivers/staging/most/cdev/Kconfig index 3c59f1bac127..2b04e26bcbea 100644 --- a/drivers/staging/most/aim-cdev/Kconfig +++ b/drivers/staging/most/cdev/Kconfig @@ -2,11 +2,11 @@ # MOST Cdev configuration # -config AIM_CDEV - tristate "Cdev AIM" +config MOST_CDEV + tristate "Cdev" ---help--- Say Y here if you want to commumicate via character devices. To compile this driver as a module, choose M here: the - module will be called aim_cdev.
\ No newline at end of file + module will be called most_cdev. diff --git a/drivers/staging/most/cdev/Makefile b/drivers/staging/most/cdev/Makefile new file mode 100644 index 000000000000..afb9870eb50f --- /dev/null +++ b/drivers/staging/most/cdev/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_CDEV) += most_cdev.o + +most_cdev-objs := cdev.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/aim-cdev/cdev.c b/drivers/staging/most/cdev/cdev.c index 69f530972273..c183489c4a1c 100644 --- a/drivers/staging/most/aim-cdev/cdev.c +++ b/drivers/staging/most/cdev/cdev.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * cdev.c - Application interfacing module for character devices + * cdev.c - Character device component for Mostcore * * Copyright (C) 2013-2015 Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -22,15 +16,17 @@ #include <linux/kfifo.h> #include <linux/uaccess.h> #include <linux/idr.h> -#include "mostcore.h" +#include "most/core.h" -static dev_t aim_devno; -static struct class *aim_class; -static struct ida minor_id; -static unsigned int major; -static struct most_aim cdev_aim; +static struct cdev_component { + dev_t devno; + struct ida minor_id; + unsigned int major; + struct class *class; + struct core_component cc; +} comp; -struct aim_channel { +struct comp_channel { wait_queue_head_t wq; spinlock_t unlink; /* synchronization lock to unlink channels */ struct cdev cdev; @@ -46,28 +42,28 @@ struct aim_channel { struct list_head list; }; -#define to_channel(d) container_of(d, struct aim_channel, cdev) +#define to_channel(d) container_of(d, struct comp_channel, cdev) static struct list_head channel_list; static spinlock_t ch_list_lock; -static inline bool ch_has_mbo(struct aim_channel *c) +static inline bool ch_has_mbo(struct comp_channel *c) { - return channel_has_mbo(c->iface, c->channel_id, &cdev_aim) > 0; + return channel_has_mbo(c->iface, c->channel_id, &comp.cc) > 0; } -static inline bool ch_get_mbo(struct aim_channel *c, struct mbo **mbo) +static inline bool ch_get_mbo(struct comp_channel *c, struct mbo **mbo) { if (!kfifo_peek(&c->fifo, mbo)) { - *mbo = most_get_mbo(c->iface, c->channel_id, &cdev_aim); + *mbo = most_get_mbo(c->iface, c->channel_id, &comp.cc); if (*mbo) kfifo_in(&c->fifo, mbo, 1); } return *mbo; } -static struct aim_channel *get_channel(struct most_interface *iface, int id) +static struct comp_channel *get_channel(struct most_interface *iface, int id) { - struct aim_channel *c, *tmp; + struct comp_channel *c, *tmp; unsigned long flags; int found_channel = 0; @@ -84,44 +80,44 @@ static struct aim_channel *get_channel(struct most_interface *iface, int id) return c; } -static void stop_channel(struct aim_channel *c) +static void stop_channel(struct comp_channel *c) { struct mbo *mbo; while (kfifo_out((struct kfifo *)&c->fifo, &mbo, 1)) most_put_mbo(mbo); - most_stop_channel(c->iface, c->channel_id, &cdev_aim); + most_stop_channel(c->iface, c->channel_id, &comp.cc); } -static void destroy_cdev(struct aim_channel *c) +static void destroy_cdev(struct comp_channel *c) { unsigned long flags; - device_destroy(aim_class, c->devno); + device_destroy(comp.class, c->devno); cdev_del(&c->cdev); spin_lock_irqsave(&ch_list_lock, flags); list_del(&c->list); spin_unlock_irqrestore(&ch_list_lock, flags); } -static void destroy_channel(struct aim_channel *c) +static void destroy_channel(struct comp_channel *c) { - ida_simple_remove(&minor_id, MINOR(c->devno)); + ida_simple_remove(&comp.minor_id, MINOR(c->devno)); kfifo_free(&c->fifo); kfree(c); } /** - * aim_open - implements the syscall to open the device + * comp_open - implements the syscall to open the device * @inode: inode pointer * @filp: file pointer * * This stores the channel pointer in the private data field of * the file structure and activates the channel within the core. */ -static int aim_open(struct inode *inode, struct file *filp) +static int comp_open(struct inode *inode, struct file *filp) { - struct aim_channel *c; + struct comp_channel *c; int ret; c = to_channel(inode->i_cdev); @@ -149,7 +145,7 @@ static int aim_open(struct inode *inode, struct file *filp) } c->mbo_offs = 0; - ret = most_start_channel(c->iface, c->channel_id, &cdev_aim); + ret = most_start_channel(c->iface, c->channel_id, &comp.cc); if (!ret) c->access_ref = 1; mutex_unlock(&c->io_mutex); @@ -157,15 +153,15 @@ static int aim_open(struct inode *inode, struct file *filp) } /** - * aim_close - implements the syscall to close the device + * comp_close - implements the syscall to close the device * @inode: inode pointer * @filp: file pointer * * This stops the channel within the core. */ -static int aim_close(struct inode *inode, struct file *filp) +static int comp_close(struct inode *inode, struct file *filp) { - struct aim_channel *c = to_channel(inode->i_cdev); + struct comp_channel *c = to_channel(inode->i_cdev); mutex_lock(&c->io_mutex); spin_lock(&c->unlink); @@ -182,19 +178,19 @@ static int aim_close(struct inode *inode, struct file *filp) } /** - * aim_write - implements the syscall to write to the device + * comp_write - implements the syscall to write to the device * @filp: file pointer * @buf: pointer to user buffer * @count: number of bytes to write * @offset: offset from where to start writing */ -static ssize_t aim_write(struct file *filp, const char __user *buf, - size_t count, loff_t *offset) +static ssize_t comp_write(struct file *filp, const char __user *buf, + size_t count, loff_t *offset) { int ret; size_t to_copy, left; struct mbo *mbo = NULL; - struct aim_channel *c = filp->private_data; + struct comp_channel *c = filp->private_data; mutex_lock(&c->io_mutex); while (c->dev && !ch_get_mbo(c, &mbo)) { @@ -236,18 +232,18 @@ unlock: } /** - * aim_read - implements the syscall to read from the device + * comp_read - implements the syscall to read from the device * @filp: file pointer * @buf: pointer to user buffer * @count: number of bytes to read * @offset: offset from where to start reading */ static ssize_t -aim_read(struct file *filp, char __user *buf, size_t count, loff_t *offset) +comp_read(struct file *filp, char __user *buf, size_t count, loff_t *offset) { size_t to_copy, not_copied, copied; struct mbo *mbo; - struct aim_channel *c = filp->private_data; + struct comp_channel *c = filp->private_data; mutex_lock(&c->io_mutex); while (c->dev && !kfifo_peek(&c->fifo, &mbo)) { @@ -287,9 +283,9 @@ aim_read(struct file *filp, char __user *buf, size_t count, loff_t *offset) return copied; } -static __poll_t aim_poll(struct file *filp, poll_table *wait) +static __poll_t comp_poll(struct file *filp, poll_table *wait) { - struct aim_channel *c = filp->private_data; + struct comp_channel *c = filp->private_data; __poll_t mask = 0; poll_wait(filp, &c->wq, wait); @@ -309,24 +305,24 @@ static __poll_t aim_poll(struct file *filp, poll_table *wait) */ static const struct file_operations channel_fops = { .owner = THIS_MODULE, - .read = aim_read, - .write = aim_write, - .open = aim_open, - .release = aim_close, - .poll = aim_poll, + .read = comp_read, + .write = comp_write, + .open = comp_open, + .release = comp_close, + .poll = comp_poll, }; /** - * aim_disconnect_channel - disconnect a channel + * comp_disconnect_channel - disconnect a channel * @iface: pointer to interface instance * @channel_id: channel index * * This frees allocated memory and removes the cdev that represents this * channel in user space. */ -static int aim_disconnect_channel(struct most_interface *iface, int channel_id) +static int comp_disconnect_channel(struct most_interface *iface, int channel_id) { - struct aim_channel *c; + struct comp_channel *c; if (!iface) { pr_info("Bad interface pointer\n"); @@ -354,15 +350,15 @@ static int aim_disconnect_channel(struct most_interface *iface, int channel_id) } /** - * aim_rx_completion - completion handler for rx channels + * comp_rx_completion - completion handler for rx channels * @mbo: pointer to buffer object that has completed * * This searches for the channel linked to this MBO and stores it in the local * fifo buffer. */ -static int aim_rx_completion(struct mbo *mbo) +static int comp_rx_completion(struct mbo *mbo) { - struct aim_channel *c; + struct comp_channel *c; if (!mbo) return -EINVAL; @@ -387,15 +383,15 @@ static int aim_rx_completion(struct mbo *mbo) } /** - * aim_tx_completion - completion handler for tx channels + * comp_tx_completion - completion handler for tx channels * @iface: pointer to interface instance * @channel_id: channel index/ID * * This wakes sleeping processes in the wait-queue. */ -static int aim_tx_completion(struct most_interface *iface, int channel_id) +static int comp_tx_completion(struct most_interface *iface, int channel_id) { - struct aim_channel *c; + struct comp_channel *c; if (!iface) { pr_info("Bad interface pointer\n"); @@ -414,35 +410,33 @@ static int aim_tx_completion(struct most_interface *iface, int channel_id) } /** - * aim_probe - probe function of the driver module + * comp_probe - probe function of the driver module * @iface: pointer to interface instance * @channel_id: channel index/ID * @cfg: pointer to actual channel configuration - * @parent: pointer to kobject (needed for sysfs hook-up) * @name: name of the device to be created * * This allocates achannel object and creates the device node in /dev * * Returns 0 on success or error code otherwise. */ -static int aim_probe(struct most_interface *iface, int channel_id, - struct most_channel_config *cfg, - struct kobject *parent, char *name) +static int comp_probe(struct most_interface *iface, int channel_id, + struct most_channel_config *cfg, char *name) { - struct aim_channel *c; + struct comp_channel *c; unsigned long cl_flags; int retval; int current_minor; - if ((!iface) || (!cfg) || (!parent) || (!name)) { - pr_info("Probing AIM with bad arguments"); + if ((!iface) || (!cfg) || (!name)) { + pr_info("Probing component with bad arguments"); return -EINVAL; } c = get_channel(iface, channel_id); if (c) return -EEXIST; - current_minor = ida_simple_get(&minor_id, 0, 0, GFP_KERNEL); + current_minor = ida_simple_get(&comp.minor_id, 0, 0, GFP_KERNEL); if (current_minor < 0) return current_minor; @@ -452,7 +446,7 @@ static int aim_probe(struct most_interface *iface, int channel_id, goto error_alloc_channel; } - c->devno = MKDEV(major, current_minor); + c->devno = MKDEV(comp.major, current_minor); cdev_init(&c->cdev, &channel_fops); c->cdev.owner = THIS_MODULE; cdev_add(&c->cdev, c->devno, 1); @@ -472,11 +466,7 @@ static int aim_probe(struct most_interface *iface, int channel_id, spin_lock_irqsave(&ch_list_lock, cl_flags); list_add_tail(&c->list, &channel_list); spin_unlock_irqrestore(&ch_list_lock, cl_flags); - c->dev = device_create(aim_class, - NULL, - c->devno, - NULL, - "%s", name); + c->dev = device_create(comp.class, NULL, c->devno, NULL, "%s", name); if (IS_ERR(c->dev)) { retval = PTR_ERR(c->dev); @@ -493,16 +483,18 @@ error_alloc_kfifo: cdev_del(&c->cdev); kfree(c); error_alloc_channel: - ida_simple_remove(&minor_id, current_minor); + ida_simple_remove(&comp.minor_id, current_minor); return retval; } -static struct most_aim cdev_aim = { - .name = "cdev", - .probe_channel = aim_probe, - .disconnect_channel = aim_disconnect_channel, - .rx_completion = aim_rx_completion, - .tx_completion = aim_tx_completion, +static struct cdev_component comp = { + .cc = { + .name = "cdev", + .probe_channel = comp_probe, + .disconnect_channel = comp_disconnect_channel, + .rx_completion = comp_rx_completion, + .tx_completion = comp_tx_completion, + }, }; static int __init mod_init(void) @@ -511,54 +503,52 @@ static int __init mod_init(void) pr_info("init()\n"); + comp.class = class_create(THIS_MODULE, "most_cdev"); + if (IS_ERR(comp.class)) { + pr_info("No udev support.\n"); + return PTR_ERR(comp.class); + } + INIT_LIST_HEAD(&channel_list); spin_lock_init(&ch_list_lock); - ida_init(&minor_id); + ida_init(&comp.minor_id); - err = alloc_chrdev_region(&aim_devno, 0, 50, "cdev"); + err = alloc_chrdev_region(&comp.devno, 0, 50, "cdev"); if (err < 0) goto dest_ida; - major = MAJOR(aim_devno); - - aim_class = class_create(THIS_MODULE, "most_cdev_aim"); - if (IS_ERR(aim_class)) { - pr_err("no udev support\n"); - err = PTR_ERR(aim_class); - goto free_cdev; - } - err = most_register_aim(&cdev_aim); + comp.major = MAJOR(comp.devno); + err = most_register_component(&comp.cc); if (err) - goto dest_class; + goto free_cdev; return 0; -dest_class: - class_destroy(aim_class); free_cdev: - unregister_chrdev_region(aim_devno, 1); + unregister_chrdev_region(comp.devno, 1); dest_ida: - ida_destroy(&minor_id); + ida_destroy(&comp.minor_id); + class_destroy(comp.class); return err; } static void __exit mod_exit(void) { - struct aim_channel *c, *tmp; + struct comp_channel *c, *tmp; pr_info("exit module\n"); - most_deregister_aim(&cdev_aim); + most_deregister_component(&comp.cc); list_for_each_entry_safe(c, tmp, &channel_list, list) { destroy_cdev(c); destroy_channel(c); } - class_destroy(aim_class); - unregister_chrdev_region(aim_devno, 1); - ida_destroy(&minor_id); + unregister_chrdev_region(comp.devno, 1); + ida_destroy(&comp.minor_id); + class_destroy(comp.class); } module_init(mod_init); module_exit(mod_exit); MODULE_AUTHOR("Christian Gromm <christian.gromm@microchip.com>"); MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("character device AIM for mostcore"); +MODULE_DESCRIPTION("character device component for mostcore"); diff --git a/drivers/staging/most/core.c b/drivers/staging/most/core.c new file mode 100644 index 000000000000..3dda8d81bf0b --- /dev/null +++ b/drivers/staging/most/core.c @@ -0,0 +1,1603 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * core.c - Implementation of core module of MOST Linux driver stack + * + * Copyright (C) 2013-2015 Microchip Technology Germany II GmbH & Co. KG + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/slab.h> +#include <linux/init.h> +#include <linux/device.h> +#include <linux/list.h> +#include <linux/poll.h> +#include <linux/wait.h> +#include <linux/kobject.h> +#include <linux/mutex.h> +#include <linux/completion.h> +#include <linux/sysfs.h> +#include <linux/kthread.h> +#include <linux/dma-mapping.h> +#include <linux/idr.h> +#include <most/core.h> + +#define MAX_CHANNELS 64 +#define STRING_SIZE 80 + +static struct ida mdev_id; +static int dummy_num_buffers; + +static struct mostcore { + struct device dev; + struct device_driver drv; + struct bus_type bus; + struct list_head comp_list; +} mc; + +#define to_driver(d) container_of(d, struct mostcore, drv) + +struct pipe { + struct core_component *comp; + int refs; + int num_buffers; +}; + +struct most_channel { + struct device dev; + struct completion cleanup; + atomic_t mbo_ref; + atomic_t mbo_nq_level; + u16 channel_id; + char name[STRING_SIZE]; + bool is_poisoned; + struct mutex start_mutex; + struct mutex nq_mutex; /* nq thread synchronization */ + int is_starving; + struct most_interface *iface; + struct most_channel_config cfg; + bool keep_mbo; + bool enqueue_halt; + struct list_head fifo; + spinlock_t fifo_lock; + struct list_head halt_fifo; + struct list_head list; + struct pipe pipe0; + struct pipe pipe1; + struct list_head trash_fifo; + struct task_struct *hdm_enqueue_task; + wait_queue_head_t hdm_fifo_wq; + +}; + +#define to_channel(d) container_of(d, struct most_channel, dev) + +struct interface_private { + int dev_id; + char name[STRING_SIZE]; + struct most_channel *channel[MAX_CHANNELS]; + struct list_head channel_list; +}; + +static const struct { + int most_ch_data_type; + const char *name; +} ch_data_type[] = { + { MOST_CH_CONTROL, "control\n" }, + { MOST_CH_ASYNC, "async\n" }, + { MOST_CH_SYNC, "sync\n" }, + { MOST_CH_ISOC, "isoc\n"}, + { MOST_CH_ISOC, "isoc_avp\n"}, +}; + +/** + * list_pop_mbo - retrieves the first MBO of the list and removes it + * @ptr: the list head to grab the MBO from. + */ +#define list_pop_mbo(ptr) \ +({ \ + struct mbo *_mbo = list_first_entry(ptr, struct mbo, list); \ + list_del(&_mbo->list); \ + _mbo; \ +}) + +/** + * most_free_mbo_coherent - free an MBO and its coherent buffer + * @mbo: most buffer + */ +static void most_free_mbo_coherent(struct mbo *mbo) +{ + struct most_channel *c = mbo->context; + u16 const coherent_buf_size = c->cfg.buffer_size + c->cfg.extra_len; + + dma_free_coherent(NULL, coherent_buf_size, mbo->virt_address, + mbo->bus_address); + kfree(mbo); + if (atomic_sub_and_test(1, &c->mbo_ref)) + complete(&c->cleanup); +} + +/** + * flush_channel_fifos - clear the channel fifos + * @c: pointer to channel object + */ +static void flush_channel_fifos(struct most_channel *c) +{ + unsigned long flags, hf_flags; + struct mbo *mbo, *tmp; + + if (list_empty(&c->fifo) && list_empty(&c->halt_fifo)) + return; + + spin_lock_irqsave(&c->fifo_lock, flags); + list_for_each_entry_safe(mbo, tmp, &c->fifo, list) { + list_del(&mbo->list); + spin_unlock_irqrestore(&c->fifo_lock, flags); + most_free_mbo_coherent(mbo); + spin_lock_irqsave(&c->fifo_lock, flags); + } + spin_unlock_irqrestore(&c->fifo_lock, flags); + + spin_lock_irqsave(&c->fifo_lock, hf_flags); + list_for_each_entry_safe(mbo, tmp, &c->halt_fifo, list) { + list_del(&mbo->list); + spin_unlock_irqrestore(&c->fifo_lock, hf_flags); + most_free_mbo_coherent(mbo); + spin_lock_irqsave(&c->fifo_lock, hf_flags); + } + spin_unlock_irqrestore(&c->fifo_lock, hf_flags); + + if (unlikely((!list_empty(&c->fifo) || !list_empty(&c->halt_fifo)))) + pr_info("WARN: fifo | trash fifo not empty\n"); +} + +/** + * flush_trash_fifo - clear the trash fifo + * @c: pointer to channel object + */ +static int flush_trash_fifo(struct most_channel *c) +{ + struct mbo *mbo, *tmp; + unsigned long flags; + + spin_lock_irqsave(&c->fifo_lock, flags); + list_for_each_entry_safe(mbo, tmp, &c->trash_fifo, list) { + list_del(&mbo->list); + spin_unlock_irqrestore(&c->fifo_lock, flags); + most_free_mbo_coherent(mbo); + spin_lock_irqsave(&c->fifo_lock, flags); + } + spin_unlock_irqrestore(&c->fifo_lock, flags); + return 0; +} + +static ssize_t available_directions_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + unsigned int i = c->channel_id; + + strcpy(buf, ""); + if (c->iface->channel_vector[i].direction & MOST_CH_RX) + strcat(buf, "rx "); + if (c->iface->channel_vector[i].direction & MOST_CH_TX) + strcat(buf, "tx "); + strcat(buf, "\n"); + return strlen(buf); +} + +static ssize_t available_datatypes_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + unsigned int i = c->channel_id; + + strcpy(buf, ""); + if (c->iface->channel_vector[i].data_type & MOST_CH_CONTROL) + strcat(buf, "control "); + if (c->iface->channel_vector[i].data_type & MOST_CH_ASYNC) + strcat(buf, "async "); + if (c->iface->channel_vector[i].data_type & MOST_CH_SYNC) + strcat(buf, "sync "); + if (c->iface->channel_vector[i].data_type & MOST_CH_ISOC) + strcat(buf, "isoc "); + strcat(buf, "\n"); + return strlen(buf); +} + +static ssize_t number_of_packet_buffers_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + unsigned int i = c->channel_id; + + return snprintf(buf, PAGE_SIZE, "%d\n", + c->iface->channel_vector[i].num_buffers_packet); +} + +static ssize_t number_of_stream_buffers_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + unsigned int i = c->channel_id; + + return snprintf(buf, PAGE_SIZE, "%d\n", + c->iface->channel_vector[i].num_buffers_streaming); +} + +static ssize_t size_of_packet_buffer_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + unsigned int i = c->channel_id; + + return snprintf(buf, PAGE_SIZE, "%d\n", + c->iface->channel_vector[i].buffer_size_packet); +} + +static ssize_t size_of_stream_buffer_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + unsigned int i = c->channel_id; + + return snprintf(buf, PAGE_SIZE, "%d\n", + c->iface->channel_vector[i].buffer_size_streaming); +} + +static ssize_t channel_starving_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", c->is_starving); +} + +static ssize_t set_number_of_buffers_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.num_buffers); +} + +static ssize_t set_number_of_buffers_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct most_channel *c = to_channel(dev); + int ret = kstrtou16(buf, 0, &c->cfg.num_buffers); + + if (ret) + return ret; + return count; +} + +static ssize_t set_buffer_size_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.buffer_size); +} + +static ssize_t set_buffer_size_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct most_channel *c = to_channel(dev); + int ret = kstrtou16(buf, 0, &c->cfg.buffer_size); + + if (ret) + return ret; + return count; +} + +static ssize_t set_direction_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + + if (c->cfg.direction & MOST_CH_TX) + return snprintf(buf, PAGE_SIZE, "tx\n"); + else if (c->cfg.direction & MOST_CH_RX) + return snprintf(buf, PAGE_SIZE, "rx\n"); + return snprintf(buf, PAGE_SIZE, "unconfigured\n"); +} + +static ssize_t set_direction_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct most_channel *c = to_channel(dev); + + if (!strcmp(buf, "dir_rx\n")) { + c->cfg.direction = MOST_CH_RX; + } else if (!strcmp(buf, "rx\n")) { + c->cfg.direction = MOST_CH_RX; + } else if (!strcmp(buf, "dir_tx\n")) { + c->cfg.direction = MOST_CH_TX; + } else if (!strcmp(buf, "tx\n")) { + c->cfg.direction = MOST_CH_TX; + } else { + pr_info("WARN: invalid attribute settings\n"); + return -EINVAL; + } + return count; +} + +static ssize_t set_datatype_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + int i; + struct most_channel *c = to_channel(dev); + + for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) { + if (c->cfg.data_type & ch_data_type[i].most_ch_data_type) + return snprintf(buf, PAGE_SIZE, ch_data_type[i].name); + } + return snprintf(buf, PAGE_SIZE, "unconfigured\n"); +} + +static ssize_t set_datatype_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + int i; + struct most_channel *c = to_channel(dev); + + for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) { + if (!strcmp(buf, ch_data_type[i].name)) { + c->cfg.data_type = ch_data_type[i].most_ch_data_type; + break; + } + } + + if (i == ARRAY_SIZE(ch_data_type)) { + pr_info("WARN: invalid attribute settings\n"); + return -EINVAL; + } + return count; +} + +static ssize_t set_subbuffer_size_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.subbuffer_size); +} + +static ssize_t set_subbuffer_size_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct most_channel *c = to_channel(dev); + int ret = kstrtou16(buf, 0, &c->cfg.subbuffer_size); + + if (ret) + return ret; + return count; +} + +static ssize_t set_packets_per_xact_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_channel *c = to_channel(dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.packets_per_xact); +} + +static ssize_t set_packets_per_xact_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t count) +{ + struct most_channel *c = to_channel(dev); + int ret = kstrtou16(buf, 0, &c->cfg.packets_per_xact); + + if (ret) + return ret; + return count; +} + +#define DEV_ATTR(_name) (&dev_attr_##_name.attr) + +static DEVICE_ATTR_RO(available_directions); +static DEVICE_ATTR_RO(available_datatypes); +static DEVICE_ATTR_RO(number_of_packet_buffers); +static DEVICE_ATTR_RO(number_of_stream_buffers); +static DEVICE_ATTR_RO(size_of_stream_buffer); +static DEVICE_ATTR_RO(size_of_packet_buffer); +static DEVICE_ATTR_RO(channel_starving); +static DEVICE_ATTR_RW(set_buffer_size); +static DEVICE_ATTR_RW(set_number_of_buffers); +static DEVICE_ATTR_RW(set_direction); +static DEVICE_ATTR_RW(set_datatype); +static DEVICE_ATTR_RW(set_subbuffer_size); +static DEVICE_ATTR_RW(set_packets_per_xact); + +static struct attribute *channel_attrs[] = { + DEV_ATTR(available_directions), + DEV_ATTR(available_datatypes), + DEV_ATTR(number_of_packet_buffers), + DEV_ATTR(number_of_stream_buffers), + DEV_ATTR(size_of_stream_buffer), + DEV_ATTR(size_of_packet_buffer), + DEV_ATTR(channel_starving), + DEV_ATTR(set_buffer_size), + DEV_ATTR(set_number_of_buffers), + DEV_ATTR(set_direction), + DEV_ATTR(set_datatype), + DEV_ATTR(set_subbuffer_size), + DEV_ATTR(set_packets_per_xact), + NULL, +}; + +static struct attribute_group channel_attr_group = { + .attrs = channel_attrs, +}; + +static const struct attribute_group *channel_attr_groups[] = { + &channel_attr_group, + NULL, +}; + +static ssize_t description_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_interface *iface = to_most_interface(dev); + + return snprintf(buf, PAGE_SIZE, "%s\n", iface->description); +} + +static ssize_t interface_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct most_interface *iface = to_most_interface(dev); + + switch (iface->interface) { + case ITYPE_LOOPBACK: + return snprintf(buf, PAGE_SIZE, "loopback\n"); + case ITYPE_I2C: + return snprintf(buf, PAGE_SIZE, "i2c\n"); + case ITYPE_I2S: + return snprintf(buf, PAGE_SIZE, "i2s\n"); + case ITYPE_TSI: + return snprintf(buf, PAGE_SIZE, "tsi\n"); + case ITYPE_HBI: + return snprintf(buf, PAGE_SIZE, "hbi\n"); + case ITYPE_MEDIALB_DIM: + return snprintf(buf, PAGE_SIZE, "mlb_dim\n"); + case ITYPE_MEDIALB_DIM2: + return snprintf(buf, PAGE_SIZE, "mlb_dim2\n"); + case ITYPE_USB: + return snprintf(buf, PAGE_SIZE, "usb\n"); + case ITYPE_PCIE: + return snprintf(buf, PAGE_SIZE, "pcie\n"); + } + return snprintf(buf, PAGE_SIZE, "unknown\n"); +} + +static DEVICE_ATTR_RO(description); +static DEVICE_ATTR_RO(interface); + +static struct attribute *interface_attrs[] = { + DEV_ATTR(description), + DEV_ATTR(interface), + NULL, +}; + +static struct attribute_group interface_attr_group = { + .attrs = interface_attrs, +}; + +static const struct attribute_group *interface_attr_groups[] = { + &interface_attr_group, + NULL, +}; + +static struct core_component *match_component(char *name) +{ + struct core_component *comp; + + list_for_each_entry(comp, &mc.comp_list, list) { + if (!strcmp(comp->name, name)) + return comp; + } + return NULL; +} + +struct show_links_data { + int offs; + char *buf; +}; + +static int print_links(struct device *dev, void *data) +{ + struct show_links_data *d = data; + int offs = d->offs; + char *buf = d->buf; + struct most_channel *c; + struct most_interface *iface = to_most_interface(dev); + + list_for_each_entry(c, &iface->p->channel_list, list) { + if (c->pipe0.comp) { + offs += snprintf(buf + offs, + PAGE_SIZE - offs, + "%s:%s:%s\n", + c->pipe0.comp->name, + dev_name(&iface->dev), + dev_name(&c->dev)); + } + if (c->pipe1.comp) { + offs += snprintf(buf + offs, + PAGE_SIZE - offs, + "%s:%s:%s\n", + c->pipe1.comp->name, + dev_name(&iface->dev), + dev_name(&c->dev)); + } + } + d->offs = offs; + return 0; +} + +static ssize_t links_show(struct device_driver *drv, char *buf) +{ + struct show_links_data d = { .buf = buf }; + + bus_for_each_dev(&mc.bus, NULL, &d, print_links); + return d.offs; +} + +static ssize_t components_show(struct device_driver *drv, char *buf) +{ + struct core_component *comp; + int offs = 0; + + list_for_each_entry(comp, &mc.comp_list, list) { + offs += snprintf(buf + offs, PAGE_SIZE - offs, "%s\n", + comp->name); + } + return offs; +} +/** + * split_string - parses buf and extracts ':' separated substrings. + * + * @buf: complete string from attribute 'add_channel' + * @a: storage for 1st substring (=interface name) + * @b: storage for 2nd substring (=channel name) + * @c: storage for 3rd substring (=component name) + * @d: storage optional 4th substring (=user defined name) + * + * Examples: + * + * Input: "mdev0:ch6:cdev:my_channel\n" or + * "mdev0:ch6:cdev:my_channel" + * + * Output: *a -> "mdev0", *b -> "ch6", *c -> "cdev" *d -> "my_channel" + * + * Input: "mdev1:ep81:cdev\n" + * Output: *a -> "mdev1", *b -> "ep81", *c -> "cdev" *d -> "" + * + * Input: "mdev1:ep81" + * Output: *a -> "mdev1", *b -> "ep81", *c -> "cdev" *d == NULL + */ +static int split_string(char *buf, char **a, char **b, char **c, char **d) +{ + *a = strsep(&buf, ":"); + if (!*a) + return -EIO; + + *b = strsep(&buf, ":\n"); + if (!*b) + return -EIO; + + *c = strsep(&buf, ":\n"); + if (!*c) + return -EIO; + + if (d) + *d = strsep(&buf, ":\n"); + + return 0; +} + +static int match_bus_dev(struct device *dev, void *data) +{ + char *mdev_name = data; + + return !strcmp(dev_name(dev), mdev_name); +} + +/** + * get_channel - get pointer to channel + * @mdev: name of the device interface + * @mdev_ch: name of channel + */ +static struct most_channel *get_channel(char *mdev, char *mdev_ch) +{ + struct device *dev = NULL; + struct most_interface *iface; + struct most_channel *c, *tmp; + + dev = bus_find_device(&mc.bus, NULL, mdev, match_bus_dev); + if (!dev) + return NULL; + iface = to_most_interface(dev); + list_for_each_entry_safe(c, tmp, &iface->p->channel_list, list) { + if (!strcmp(dev_name(&c->dev), mdev_ch)) + return c; + } + return NULL; +} + +static +inline int link_channel_to_component(struct most_channel *c, + struct core_component *comp, + char *comp_param) +{ + int ret; + struct core_component **comp_ptr; + + if (!c->pipe0.comp) + comp_ptr = &c->pipe0.comp; + else if (!c->pipe1.comp) + comp_ptr = &c->pipe1.comp; + else + return -ENOSPC; + + *comp_ptr = comp; + ret = comp->probe_channel(c->iface, c->channel_id, &c->cfg, comp_param); + if (ret) { + *comp_ptr = NULL; + return ret; + } + return 0; +} + +/** + * add_link_store - store function for add_link attribute + * @drv: device driver + * @buf: buffer + * @len: buffer length + * + * This parses the string given by buf and splits it into + * four substrings. Note: last substring is optional. In case a cdev + * component is loaded the optional 4th substring will make up the name of + * device node in the /dev directory. If omitted, the device node will + * inherit the channel's name within sysfs. + * + * Searches for (device, channel) pair and probes the component + * + * Example: + * (1) echo "mdev0:ch6:cdev:my_rxchannel" >add_link + * (2) echo "mdev1:ep81:cdev" >add_link + * + * (1) would create the device node /dev/my_rxchannel + * (2) would create the device node /dev/mdev1-ep81 + */ +static ssize_t add_link_store(struct device_driver *drv, + const char *buf, + size_t len) +{ + struct most_channel *c; + struct core_component *comp; + char buffer[STRING_SIZE]; + char *mdev; + char *mdev_ch; + char *comp_name; + char *comp_param; + char devnod_buf[STRING_SIZE]; + int ret; + size_t max_len = min_t(size_t, len + 1, STRING_SIZE); + + strlcpy(buffer, buf, max_len); + ret = split_string(buffer, &mdev, &mdev_ch, &comp_name, &comp_param); + if (ret) + return ret; + comp = match_component(comp_name); + if (!comp) + return -ENODEV; + if (!comp_param || *comp_param == 0) { + snprintf(devnod_buf, sizeof(devnod_buf), "%s-%s", mdev, + mdev_ch); + comp_param = devnod_buf; + } + + c = get_channel(mdev, mdev_ch); + if (!c) + return -ENODEV; + + ret = link_channel_to_component(c, comp, comp_param); + if (ret) + return ret; + return len; +} + +/** + * remove_link_store - store function for remove_link attribute + * @drv: device driver + * @buf: buffer + * @len: buffer length + * + * Example: + * echo "mdev0:ep81" >remove_link + */ +static ssize_t remove_link_store(struct device_driver *drv, + const char *buf, + size_t len) +{ + struct most_channel *c; + struct core_component *comp; + char buffer[STRING_SIZE]; + char *mdev; + char *mdev_ch; + char *comp_name; + int ret; + size_t max_len = min_t(size_t, len + 1, STRING_SIZE); + + strlcpy(buffer, buf, max_len); + ret = split_string(buffer, &mdev, &mdev_ch, &comp_name, NULL); + if (ret) + return ret; + comp = match_component(comp_name); + if (!comp) + return -ENODEV; + c = get_channel(mdev, mdev_ch); + if (!c) + return -ENODEV; + + if (comp->disconnect_channel(c->iface, c->channel_id)) + return -EIO; + if (c->pipe0.comp == comp) + c->pipe0.comp = NULL; + if (c->pipe1.comp == comp) + c->pipe1.comp = NULL; + return len; +} + +#define DRV_ATTR(_name) (&driver_attr_##_name.attr) + +static DRIVER_ATTR_RO(links); +static DRIVER_ATTR_RO(components); +static DRIVER_ATTR_WO(add_link); +static DRIVER_ATTR_WO(remove_link); + +static struct attribute *mc_attrs[] = { + DRV_ATTR(links), + DRV_ATTR(components), + DRV_ATTR(add_link), + DRV_ATTR(remove_link), + NULL, +}; + +static struct attribute_group mc_attr_group = { + .attrs = mc_attrs, +}; + +static const struct attribute_group *mc_attr_groups[] = { + &mc_attr_group, + NULL, +}; + +static int most_match(struct device *dev, struct device_driver *drv) +{ + if (!strcmp(dev_name(dev), "most")) + return 0; + else + return 1; +} + +static inline void trash_mbo(struct mbo *mbo) +{ + unsigned long flags; + struct most_channel *c = mbo->context; + + spin_lock_irqsave(&c->fifo_lock, flags); + list_add(&mbo->list, &c->trash_fifo); + spin_unlock_irqrestore(&c->fifo_lock, flags); +} + +static bool hdm_mbo_ready(struct most_channel *c) +{ + bool empty; + + if (c->enqueue_halt) + return false; + + spin_lock_irq(&c->fifo_lock); + empty = list_empty(&c->halt_fifo); + spin_unlock_irq(&c->fifo_lock); + + return !empty; +} + +static void nq_hdm_mbo(struct mbo *mbo) +{ + unsigned long flags; + struct most_channel *c = mbo->context; + + spin_lock_irqsave(&c->fifo_lock, flags); + list_add_tail(&mbo->list, &c->halt_fifo); + spin_unlock_irqrestore(&c->fifo_lock, flags); + wake_up_interruptible(&c->hdm_fifo_wq); +} + +static int hdm_enqueue_thread(void *data) +{ + struct most_channel *c = data; + struct mbo *mbo; + int ret; + typeof(c->iface->enqueue) enqueue = c->iface->enqueue; + + while (likely(!kthread_should_stop())) { + wait_event_interruptible(c->hdm_fifo_wq, + hdm_mbo_ready(c) || + kthread_should_stop()); + + mutex_lock(&c->nq_mutex); + spin_lock_irq(&c->fifo_lock); + if (unlikely(c->enqueue_halt || list_empty(&c->halt_fifo))) { + spin_unlock_irq(&c->fifo_lock); + mutex_unlock(&c->nq_mutex); + continue; + } + + mbo = list_pop_mbo(&c->halt_fifo); + spin_unlock_irq(&c->fifo_lock); + + if (c->cfg.direction == MOST_CH_RX) + mbo->buffer_length = c->cfg.buffer_size; + + ret = enqueue(mbo->ifp, mbo->hdm_channel_id, mbo); + mutex_unlock(&c->nq_mutex); + + if (unlikely(ret)) { + pr_err("hdm enqueue failed\n"); + nq_hdm_mbo(mbo); + c->hdm_enqueue_task = NULL; + return 0; + } + } + + return 0; +} + +static int run_enqueue_thread(struct most_channel *c, int channel_id) +{ + struct task_struct *task = + kthread_run(hdm_enqueue_thread, c, "hdm_fifo_%d", + channel_id); + + if (IS_ERR(task)) + return PTR_ERR(task); + + c->hdm_enqueue_task = task; + return 0; +} + +/** + * arm_mbo - recycle MBO for further usage + * @mbo: most buffer + * + * This puts an MBO back to the list to have it ready for up coming + * tx transactions. + * + * In case the MBO belongs to a channel that recently has been + * poisoned, the MBO is scheduled to be trashed. + * Calls the completion handler of an attached component. + */ +static void arm_mbo(struct mbo *mbo) +{ + unsigned long flags; + struct most_channel *c; + + BUG_ON((!mbo) || (!mbo->context)); + c = mbo->context; + + if (c->is_poisoned) { + trash_mbo(mbo); + return; + } + + spin_lock_irqsave(&c->fifo_lock, flags); + ++*mbo->num_buffers_ptr; + list_add_tail(&mbo->list, &c->fifo); + spin_unlock_irqrestore(&c->fifo_lock, flags); + + if (c->pipe0.refs && c->pipe0.comp->tx_completion) + c->pipe0.comp->tx_completion(c->iface, c->channel_id); + + if (c->pipe1.refs && c->pipe1.comp->tx_completion) + c->pipe1.comp->tx_completion(c->iface, c->channel_id); +} + +/** + * arm_mbo_chain - helper function that arms an MBO chain for the HDM + * @c: pointer to interface channel + * @dir: direction of the channel + * @compl: pointer to completion function + * + * This allocates buffer objects including the containing DMA coherent + * buffer and puts them in the fifo. + * Buffers of Rx channels are put in the kthread fifo, hence immediately + * submitted to the HDM. + * + * Returns the number of allocated and enqueued MBOs. + */ +static int arm_mbo_chain(struct most_channel *c, int dir, + void (*compl)(struct mbo *)) +{ + unsigned int i; + int retval; + struct mbo *mbo; + u32 coherent_buf_size = c->cfg.buffer_size + c->cfg.extra_len; + + atomic_set(&c->mbo_nq_level, 0); + + for (i = 0; i < c->cfg.num_buffers; i++) { + mbo = kzalloc(sizeof(*mbo), GFP_KERNEL); + if (!mbo) { + retval = i; + goto _exit; + } + mbo->context = c; + mbo->ifp = c->iface; + mbo->hdm_channel_id = c->channel_id; + mbo->virt_address = dma_alloc_coherent(NULL, + coherent_buf_size, + &mbo->bus_address, + GFP_KERNEL); + if (!mbo->virt_address) { + pr_info("WARN: No DMA coherent buffer.\n"); + retval = i; + goto _error1; + } + mbo->complete = compl; + mbo->num_buffers_ptr = &dummy_num_buffers; + if (dir == MOST_CH_RX) { + nq_hdm_mbo(mbo); + atomic_inc(&c->mbo_nq_level); + } else { + arm_mbo(mbo); + } + } + return i; + +_error1: + kfree(mbo); +_exit: + return retval; +} + +/** + * most_submit_mbo - submits an MBO to fifo + * @mbo: most buffer + */ +void most_submit_mbo(struct mbo *mbo) +{ + if (WARN_ONCE(!mbo || !mbo->context, + "bad mbo or missing channel reference\n")) + return; + + nq_hdm_mbo(mbo); +} +EXPORT_SYMBOL_GPL(most_submit_mbo); + +/** + * most_write_completion - write completion handler + * @mbo: most buffer + * + * This recycles the MBO for further usage. In case the channel has been + * poisoned, the MBO is scheduled to be trashed. + */ +static void most_write_completion(struct mbo *mbo) +{ + struct most_channel *c; + + BUG_ON((!mbo) || (!mbo->context)); + + c = mbo->context; + if (mbo->status == MBO_E_INVAL) + pr_info("WARN: Tx MBO status: invalid\n"); + if (unlikely(c->is_poisoned || (mbo->status == MBO_E_CLOSE))) + trash_mbo(mbo); + else + arm_mbo(mbo); +} + +int channel_has_mbo(struct most_interface *iface, int id, + struct core_component *comp) +{ + struct most_channel *c = iface->p->channel[id]; + unsigned long flags; + int empty; + + if (unlikely(!c)) + return -EINVAL; + + if (c->pipe0.refs && c->pipe1.refs && + ((comp == c->pipe0.comp && c->pipe0.num_buffers <= 0) || + (comp == c->pipe1.comp && c->pipe1.num_buffers <= 0))) + return 0; + + spin_lock_irqsave(&c->fifo_lock, flags); + empty = list_empty(&c->fifo); + spin_unlock_irqrestore(&c->fifo_lock, flags); + return !empty; +} +EXPORT_SYMBOL_GPL(channel_has_mbo); + +/** + * most_get_mbo - get pointer to an MBO of pool + * @iface: pointer to interface instance + * @id: channel ID + * @comp: driver component + * + * This attempts to get a free buffer out of the channel fifo. + * Returns a pointer to MBO on success or NULL otherwise. + */ +struct mbo *most_get_mbo(struct most_interface *iface, int id, + struct core_component *comp) +{ + struct mbo *mbo; + struct most_channel *c; + unsigned long flags; + int *num_buffers_ptr; + + c = iface->p->channel[id]; + if (unlikely(!c)) + return NULL; + + if (c->pipe0.refs && c->pipe1.refs && + ((comp == c->pipe0.comp && c->pipe0.num_buffers <= 0) || + (comp == c->pipe1.comp && c->pipe1.num_buffers <= 0))) + return NULL; + + if (comp == c->pipe0.comp) + num_buffers_ptr = &c->pipe0.num_buffers; + else if (comp == c->pipe1.comp) + num_buffers_ptr = &c->pipe1.num_buffers; + else + num_buffers_ptr = &dummy_num_buffers; + + spin_lock_irqsave(&c->fifo_lock, flags); + if (list_empty(&c->fifo)) { + spin_unlock_irqrestore(&c->fifo_lock, flags); + return NULL; + } + mbo = list_pop_mbo(&c->fifo); + --*num_buffers_ptr; + spin_unlock_irqrestore(&c->fifo_lock, flags); + + mbo->num_buffers_ptr = num_buffers_ptr; + mbo->buffer_length = c->cfg.buffer_size; + return mbo; +} +EXPORT_SYMBOL_GPL(most_get_mbo); + +/** + * most_put_mbo - return buffer to pool + * @mbo: most buffer + */ +void most_put_mbo(struct mbo *mbo) +{ + struct most_channel *c = mbo->context; + + if (c->cfg.direction == MOST_CH_TX) { + arm_mbo(mbo); + return; + } + nq_hdm_mbo(mbo); + atomic_inc(&c->mbo_nq_level); +} +EXPORT_SYMBOL_GPL(most_put_mbo); + +/** + * most_read_completion - read completion handler + * @mbo: most buffer + * + * This function is called by the HDM when data has been received from the + * hardware and copied to the buffer of the MBO. + * + * In case the channel has been poisoned it puts the buffer in the trash queue. + * Otherwise, it passes the buffer to an component for further processing. + */ +static void most_read_completion(struct mbo *mbo) +{ + struct most_channel *c = mbo->context; + + if (unlikely(c->is_poisoned || (mbo->status == MBO_E_CLOSE))) { + trash_mbo(mbo); + return; + } + + if (mbo->status == MBO_E_INVAL) { + nq_hdm_mbo(mbo); + atomic_inc(&c->mbo_nq_level); + return; + } + + if (atomic_sub_and_test(1, &c->mbo_nq_level)) + c->is_starving = 1; + + if (c->pipe0.refs && c->pipe0.comp->rx_completion && + c->pipe0.comp->rx_completion(mbo) == 0) + return; + + if (c->pipe1.refs && c->pipe1.comp->rx_completion && + c->pipe1.comp->rx_completion(mbo) == 0) + return; + + most_put_mbo(mbo); +} + +/** + * most_start_channel - prepares a channel for communication + * @iface: pointer to interface instance + * @id: channel ID + * @comp: driver component + * + * This prepares the channel for usage. Cross-checks whether the + * channel's been properly configured. + * + * Returns 0 on success or error code otherwise. + */ +int most_start_channel(struct most_interface *iface, int id, + struct core_component *comp) +{ + int num_buffer; + int ret; + struct most_channel *c = iface->p->channel[id]; + + if (unlikely(!c)) + return -EINVAL; + + mutex_lock(&c->start_mutex); + if (c->pipe0.refs + c->pipe1.refs > 0) + goto out; /* already started by another component */ + + if (!try_module_get(iface->mod)) { + pr_info("failed to acquire HDM lock\n"); + mutex_unlock(&c->start_mutex); + return -ENOLCK; + } + + c->cfg.extra_len = 0; + if (c->iface->configure(c->iface, c->channel_id, &c->cfg)) { + pr_info("channel configuration failed. Go check settings...\n"); + ret = -EINVAL; + goto error; + } + + init_waitqueue_head(&c->hdm_fifo_wq); + + if (c->cfg.direction == MOST_CH_RX) + num_buffer = arm_mbo_chain(c, c->cfg.direction, + most_read_completion); + else + num_buffer = arm_mbo_chain(c, c->cfg.direction, + most_write_completion); + if (unlikely(!num_buffer)) { + pr_info("failed to allocate memory\n"); + ret = -ENOMEM; + goto error; + } + + ret = run_enqueue_thread(c, id); + if (ret) + goto error; + + c->is_starving = 0; + c->pipe0.num_buffers = c->cfg.num_buffers / 2; + c->pipe1.num_buffers = c->cfg.num_buffers - c->pipe0.num_buffers; + atomic_set(&c->mbo_ref, num_buffer); + +out: + if (comp == c->pipe0.comp) + c->pipe0.refs++; + if (comp == c->pipe1.comp) + c->pipe1.refs++; + mutex_unlock(&c->start_mutex); + return 0; + +error: + module_put(iface->mod); + mutex_unlock(&c->start_mutex); + return ret; +} +EXPORT_SYMBOL_GPL(most_start_channel); + +/** + * most_stop_channel - stops a running channel + * @iface: pointer to interface instance + * @id: channel ID + * @comp: driver component + */ +int most_stop_channel(struct most_interface *iface, int id, + struct core_component *comp) +{ + struct most_channel *c; + + if (unlikely((!iface) || (id >= iface->num_channels) || (id < 0))) { + pr_err("Bad interface or index out of range\n"); + return -EINVAL; + } + c = iface->p->channel[id]; + if (unlikely(!c)) + return -EINVAL; + + mutex_lock(&c->start_mutex); + if (c->pipe0.refs + c->pipe1.refs >= 2) + goto out; + + if (c->hdm_enqueue_task) + kthread_stop(c->hdm_enqueue_task); + c->hdm_enqueue_task = NULL; + + if (iface->mod) + module_put(iface->mod); + + c->is_poisoned = true; + if (c->iface->poison_channel(c->iface, c->channel_id)) { + pr_err("Cannot stop channel %d of mdev %s\n", c->channel_id, + c->iface->description); + mutex_unlock(&c->start_mutex); + return -EAGAIN; + } + flush_trash_fifo(c); + flush_channel_fifos(c); + +#ifdef CMPL_INTERRUPTIBLE + if (wait_for_completion_interruptible(&c->cleanup)) { + pr_info("Interrupted while clean up ch %d\n", c->channel_id); + mutex_unlock(&c->start_mutex); + return -EINTR; + } +#else + wait_for_completion(&c->cleanup); +#endif + c->is_poisoned = false; + +out: + if (comp == c->pipe0.comp) + c->pipe0.refs--; + if (comp == c->pipe1.comp) + c->pipe1.refs--; + mutex_unlock(&c->start_mutex); + return 0; +} +EXPORT_SYMBOL_GPL(most_stop_channel); + +/** + * most_register_component - registers a driver component with the core + * @comp: driver component + */ +int most_register_component(struct core_component *comp) +{ + if (!comp) { + pr_err("Bad component\n"); + return -EINVAL; + } + list_add_tail(&comp->list, &mc.comp_list); + pr_info("registered new core component %s\n", comp->name); + return 0; +} +EXPORT_SYMBOL_GPL(most_register_component); + +static int disconnect_channels(struct device *dev, void *data) +{ + struct most_interface *iface; + struct most_channel *c, *tmp; + struct core_component *comp = data; + + iface = to_most_interface(dev); + list_for_each_entry_safe(c, tmp, &iface->p->channel_list, list) { + if (c->pipe0.comp == comp || c->pipe1.comp == comp) + comp->disconnect_channel(c->iface, c->channel_id); + if (c->pipe0.comp == comp) + c->pipe0.comp = NULL; + if (c->pipe1.comp == comp) + c->pipe1.comp = NULL; + } + return 0; +} + +/** + * most_deregister_component - deregisters a driver component with the core + * @comp: driver component + */ +int most_deregister_component(struct core_component *comp) +{ + if (!comp) { + pr_err("Bad component\n"); + return -EINVAL; + } + + bus_for_each_dev(&mc.bus, NULL, comp, disconnect_channels); + list_del(&comp->list); + pr_info("deregistering component %s\n", comp->name); + return 0; +} +EXPORT_SYMBOL_GPL(most_deregister_component); + +static void release_interface(struct device *dev) +{ + pr_info("releasing interface dev %s...\n", dev_name(dev)); +} + +static void release_channel(struct device *dev) +{ + pr_info("releasing channel dev %s...\n", dev_name(dev)); +} + +/** + * most_register_interface - registers an interface with core + * @iface: device interface + * + * Allocates and initializes a new interface instance and all of its channels. + * Returns a pointer to kobject or an error pointer. + */ +int most_register_interface(struct most_interface *iface) +{ + unsigned int i; + int id; + struct most_channel *c; + + if (!iface || !iface->enqueue || !iface->configure || + !iface->poison_channel || (iface->num_channels > MAX_CHANNELS)) { + pr_err("Bad interface or channel overflow\n"); + return -EINVAL; + } + + id = ida_simple_get(&mdev_id, 0, 0, GFP_KERNEL); + if (id < 0) { + pr_info("Failed to alloc mdev ID\n"); + return id; + } + + iface->p = kzalloc(sizeof(*iface->p), GFP_KERNEL); + if (!iface->p) { + pr_info("Failed to allocate interface instance\n"); + ida_simple_remove(&mdev_id, id); + return -ENOMEM; + } + + INIT_LIST_HEAD(&iface->p->channel_list); + iface->p->dev_id = id; + snprintf(iface->p->name, STRING_SIZE, "mdev%d", id); + iface->dev.init_name = iface->p->name; + iface->dev.bus = &mc.bus; + iface->dev.parent = &mc.dev; + iface->dev.groups = interface_attr_groups; + iface->dev.release = release_interface; + if (device_register(&iface->dev)) { + pr_err("registering iface->dev failed\n"); + kfree(iface->p); + ida_simple_remove(&mdev_id, id); + return -ENOMEM; + } + + for (i = 0; i < iface->num_channels; i++) { + const char *name_suffix = iface->channel_vector[i].name_suffix; + + c = kzalloc(sizeof(*c), GFP_KERNEL); + if (!c) + goto free_instance; + if (!name_suffix) + snprintf(c->name, STRING_SIZE, "ch%d", i); + else + snprintf(c->name, STRING_SIZE, "%s", name_suffix); + c->dev.init_name = c->name; + c->dev.parent = &iface->dev; + c->dev.groups = channel_attr_groups; + c->dev.release = release_channel; + if (device_register(&c->dev)) { + pr_err("registering c->dev failed\n"); + goto free_instance_nodev; + } + iface->p->channel[i] = c; + c->is_starving = 0; + c->iface = iface; + c->channel_id = i; + c->keep_mbo = false; + c->enqueue_halt = false; + c->is_poisoned = false; + c->cfg.direction = 0; + c->cfg.data_type = 0; + c->cfg.num_buffers = 0; + c->cfg.buffer_size = 0; + c->cfg.subbuffer_size = 0; + c->cfg.packets_per_xact = 0; + spin_lock_init(&c->fifo_lock); + INIT_LIST_HEAD(&c->fifo); + INIT_LIST_HEAD(&c->trash_fifo); + INIT_LIST_HEAD(&c->halt_fifo); + init_completion(&c->cleanup); + atomic_set(&c->mbo_ref, 0); + mutex_init(&c->start_mutex); + mutex_init(&c->nq_mutex); + list_add_tail(&c->list, &iface->p->channel_list); + } + pr_info("registered new device mdev%d (%s)\n", + id, iface->description); + return 0; + +free_instance_nodev: + kfree(c); + +free_instance: + while (i > 0) { + c = iface->p->channel[--i]; + device_unregister(&c->dev); + kfree(c); + } + kfree(iface->p); + device_unregister(&iface->dev); + ida_simple_remove(&mdev_id, id); + return -ENOMEM; +} +EXPORT_SYMBOL_GPL(most_register_interface); + +/** + * most_deregister_interface - deregisters an interface with core + * @iface: device interface + * + * Before removing an interface instance from the list, all running + * channels are stopped and poisoned. + */ +void most_deregister_interface(struct most_interface *iface) +{ + int i; + struct most_channel *c; + + pr_info("deregistering device %s (%s)\n", dev_name(&iface->dev), iface->description); + for (i = 0; i < iface->num_channels; i++) { + c = iface->p->channel[i]; + if (c->pipe0.comp) + c->pipe0.comp->disconnect_channel(c->iface, + c->channel_id); + if (c->pipe1.comp) + c->pipe1.comp->disconnect_channel(c->iface, + c->channel_id); + c->pipe0.comp = NULL; + c->pipe1.comp = NULL; + list_del(&c->list); + device_unregister(&c->dev); + kfree(c); + } + + ida_simple_remove(&mdev_id, iface->p->dev_id); + kfree(iface->p); + device_unregister(&iface->dev); +} +EXPORT_SYMBOL_GPL(most_deregister_interface); + +/** + * most_stop_enqueue - prevents core from enqueueing MBOs + * @iface: pointer to interface + * @id: channel id + * + * This is called by an HDM that _cannot_ attend to its duties and + * is imminent to get run over by the core. The core is not going to + * enqueue any further packets unless the flagging HDM calls + * most_resume enqueue(). + */ +void most_stop_enqueue(struct most_interface *iface, int id) +{ + struct most_channel *c = iface->p->channel[id]; + + if (!c) + return; + + mutex_lock(&c->nq_mutex); + c->enqueue_halt = true; + mutex_unlock(&c->nq_mutex); +} +EXPORT_SYMBOL_GPL(most_stop_enqueue); + +/** + * most_resume_enqueue - allow core to enqueue MBOs again + * @iface: pointer to interface + * @id: channel id + * + * This clears the enqueue halt flag and enqueues all MBOs currently + * sitting in the wait fifo. + */ +void most_resume_enqueue(struct most_interface *iface, int id) +{ + struct most_channel *c = iface->p->channel[id]; + + if (!c) + return; + + mutex_lock(&c->nq_mutex); + c->enqueue_halt = false; + mutex_unlock(&c->nq_mutex); + + wake_up_interruptible(&c->hdm_fifo_wq); +} +EXPORT_SYMBOL_GPL(most_resume_enqueue); + +static void release_most_sub(struct device *dev) +{ + pr_info("releasing most_subsystem\n"); +} + +static int __init most_init(void) +{ + int err; + + pr_info("init()\n"); + INIT_LIST_HEAD(&mc.comp_list); + ida_init(&mdev_id); + + mc.bus.name = "most", + mc.bus.match = most_match, + mc.drv.name = "most_core", + mc.drv.bus = &mc.bus, + mc.drv.groups = mc_attr_groups; + + err = bus_register(&mc.bus); + if (err) { + pr_info("Cannot register most bus\n"); + return err; + } + err = driver_register(&mc.drv); + if (err) { + pr_info("Cannot register core driver\n"); + goto exit_bus; + } + mc.dev.init_name = "most_bus"; + mc.dev.release = release_most_sub; + if (device_register(&mc.dev)) { + err = -ENOMEM; + goto exit_driver; + } + + return 0; + +exit_driver: + driver_unregister(&mc.drv); +exit_bus: + bus_unregister(&mc.bus); + return err; +} + +static void __exit most_exit(void) +{ + pr_info("exit core module\n"); + device_unregister(&mc.dev); + driver_unregister(&mc.drv); + bus_unregister(&mc.bus); + ida_destroy(&mdev_id); +} + +module_init(most_init); +module_exit(most_exit); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Christian Gromm <christian.gromm@microchip.com>"); +MODULE_DESCRIPTION("Core module of stacked MOST Linux driver"); diff --git a/drivers/staging/most/mostcore/mostcore.h b/drivers/staging/most/core.h index 915e5159d1eb..74a29163b68a 100644 --- a/drivers/staging/most/mostcore/mostcore.h +++ b/drivers/staging/most/core.h @@ -1,31 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * mostcore.h - Interface between MostCore, - * Hardware Dependent Module (HDM) and Application Interface Module (AIM). + * most.h - API for component and adapter drivers * * Copyright (C) 2013-2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. - */ - -/* - * Authors: - * Andrey Shvetsov <andrey.shvetsov@k2l.de> - * Christian Gromm <christian.gromm@microchip.com> - * Sebastian Graf */ #ifndef __MOST_CORE_H__ #define __MOST_CORE_H__ #include <linux/types.h> +#include <linux/device.h> -struct kobject; struct module; +struct interface_private; /** * Interface type @@ -79,22 +66,22 @@ enum mbo_status_flags { * The value is bitwise OR-combination of the values from the * enumeration most_channel_data_type. Zero is allowed value and means * "channel may not be used". - * @num_buffer_packet: Maximum number of buffers supported by this channel + * @num_buffers_packet: Maximum number of buffers supported by this channel * for packet data types (Async,Control,QoS) * @buffer_size_packet: Maximum buffer size supported by this channel * for packet data types (Async,Control,QoS) - * @num_buffer_streaming: Maximum number of buffers supported by this channel + * @num_buffers_streaming: Maximum number of buffers supported by this channel * for streaming data types (Sync,AV Packetized) * @buffer_size_streaming: Maximum buffer size supported by this channel * for streaming data types (Sync,AV Packetized) * @name_suffix: Optional suffix providean by an HDM that is attached to the * regular channel name. * - * Describes the capabilities of a MostCore channel like supported Data Types + * Describes the capabilities of a MOST channel like supported Data Types * and directions. This information is provided by an HDM for the MostCore. * * The Core creates read only sysfs attribute files in - * /sys/devices/virtual/most/mostcore/devices/mdev-#/mdev#-ch#/ with the + * /sys/devices/most/mdev#/<channel>/ with the * following attributes: * -available_directions * -available_datatypes @@ -129,7 +116,7 @@ struct most_channel_capability { * @packets_per_xact: number of MOST frames that are packet inside one USB * packet. This is USB specific * - * Describes the configuration for a MostCore channel. This information is + * Describes the configuration for a MOST channel. This information is * provided from the MostCore to a HDM (like the Medusa PCIe Interface) as a * parameter of the "configure" function call. */ @@ -153,6 +140,7 @@ struct most_channel_config { * * @list: list head for use by the mbo's current owner * @ifp: (in) associated interface instance + * @num_buffers_ptr: amount of pool buffers * @hdm_channel_id: (in) HDM channel instance * @virt_address: (in) kernel virtual address of the buffer * @bus_address: (in) bus address of the buffer @@ -161,15 +149,15 @@ struct most_channel_config { * @status: (out) transfer status * @complete: (in) completion routine * - * The MostCore allocates and initializes the MBO. + * The core allocates and initializes the MBO. * - * The HDM receives MBO for transfer from MostCore with the call to enqueue(). + * The HDM receives MBO for transfer from the core with the call to enqueue(). * The HDM copies the data to- or from the buffer depending on configured * channel direction, set "processed_length" and "status" and completes * the transfer procedure by calling the completion routine. * - * At the end the MostCore deallocates the MBO or recycles it for further - * transfers for the same or different HDM. + * Finally, the MBO is being deallocated or recycled for further + * transfers of the same or a different HDM. * * Directions of usage: * The core driver should never access any MBO fields (even if marked @@ -202,10 +190,12 @@ struct mbo { /** * Interface instance description. * - * Describes one instance of an interface like Medusa PCIe or Vantage USB. + * Describes an interface of a MOST device the core driver is bound to. * This structure is allocated and initialized in the HDM. MostCore may not * modify this structure. * + * @dev: the actual device + * @mod: module * @interface Interface type. \sa most_interface_type. * @description PRELIMINARY. * Unique description of the device instance from point of view of the @@ -238,10 +228,11 @@ struct mbo { * @priv Private field used by mostcore to store context information. */ struct most_interface { + struct device dev; struct module *mod; enum most_interface_type interface; const char *description; - int num_channels; + unsigned int num_channels; struct most_channel_capability *channel_vector; int (*configure)(struct most_interface *iface, int channel_idx, struct most_channel_config *channel_config); @@ -253,27 +244,29 @@ struct most_interface { unsigned char link_stat, unsigned char *mac_addr)); void *priv; + struct interface_private *p; }; +#define to_most_interface(d) container_of(d, struct most_interface, dev) + /** - * struct most_aim - identifies MOST device driver to mostcore - * @name: Driver name + * struct core_component - identifies a loadable component for the mostcore + * @list: list_head + * @name: component name * @probe_channel: function for core to notify driver about channel connection * @disconnect_channel: callback function to disconnect a certain channel * @rx_completion: completion handler for received packets * @tx_completion: completion handler for transmitted packets - * @context: context pointer to be used by mostcore */ -struct most_aim { +struct core_component { + struct list_head list; const char *name; int (*probe_channel)(struct most_interface *iface, int channel_idx, - struct most_channel_config *cfg, - struct kobject *parent, char *name); + struct most_channel_config *cfg, char *name); int (*disconnect_channel)(struct most_interface *iface, int channel_idx); int (*rx_completion)(struct mbo *mbo); int (*tx_completion)(struct most_interface *iface, int channel_idx); - void *context; }; /** @@ -285,7 +278,7 @@ struct most_aim { * Note: HDM has to ensure that any reference held on the kobj is * released before deregistering the interface. */ -struct kobject *most_register_interface(struct most_interface *iface); +int most_register_interface(struct most_interface *iface); /** * Deregisters instance of the interface. @@ -310,16 +303,16 @@ void most_stop_enqueue(struct most_interface *iface, int channel_idx); * in wait fifo. */ void most_resume_enqueue(struct most_interface *iface, int channel_idx); -int most_register_aim(struct most_aim *aim); -int most_deregister_aim(struct most_aim *aim); +int most_register_component(struct core_component *comp); +int most_deregister_component(struct core_component *comp); struct mbo *most_get_mbo(struct most_interface *iface, int channel_idx, - struct most_aim *); + struct core_component *comp); void most_put_mbo(struct mbo *mbo); int channel_has_mbo(struct most_interface *iface, int channel_idx, - struct most_aim *aim); + struct core_component *comp); int most_start_channel(struct most_interface *iface, int channel_idx, - struct most_aim *); + struct core_component *comp); int most_stop_channel(struct most_interface *iface, int channel_idx, - struct most_aim *); + struct core_component *comp); #endif /* MOST_CORE_H_ */ diff --git a/drivers/staging/most/hdm-dim2/Kconfig b/drivers/staging/most/dim2/Kconfig index 663bfebff674..e39c4e525cac 100644 --- a/drivers/staging/most/hdm-dim2/Kconfig +++ b/drivers/staging/most/dim2/Kconfig @@ -2,8 +2,8 @@ # MediaLB configuration # -config HDM_DIM2 - tristate "DIM2 HDM" +config MOST_DIM2 + tristate "DIM2" depends on HAS_IOMEM ---help--- @@ -13,4 +13,4 @@ config HDM_DIM2 maintainer of this driver. To compile this driver as a module, choose M here: the - module will be called hdm_dim2. + module will be called most_dim2. diff --git a/drivers/staging/most/dim2/Makefile b/drivers/staging/most/dim2/Makefile new file mode 100644 index 000000000000..66676f5907ee --- /dev/null +++ b/drivers/staging/most/dim2/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_DIM2) += most_dim2.o + +most_dim2-objs := dim2.o hal.o sysfs.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/dim2/dim2.c index df7021c522b3..f9bc7dea75b8 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hdm.c +++ b/drivers/staging/most/dim2/dim2.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * dim2_hdm.c - MediaLB DIM2 Hardware Dependent Module + * dim2.c - MediaLB DIM2 Hardware Dependent Module * * Copyright (C) 2015-2016, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -25,11 +19,11 @@ #include <linux/sched.h> #include <linux/kthread.h> -#include <mostcore.h> -#include "dim2_hal.h" -#include "dim2_hdm.h" -#include "dim2_errors.h" -#include "dim2_sysfs.h" +#include "most/core.h" +#include "hal.h" +#include "dim2.h" +#include "errors.h" +#include "sysfs.h" #define DMA_CHANNELS (32 - 1) /* channel 0 is a system channel */ @@ -93,6 +87,7 @@ struct hdm_channel { * @atx_idx: index of async tx channel */ struct dim2_hdm { + struct device dev; struct hdm_channel hch[DMA_CHANNELS]; struct most_channel_capability capabilities[DMA_CHANNELS]; struct most_interface most_iface; @@ -106,8 +101,8 @@ struct dim2_hdm { unsigned char link_state; int atx_idx; struct medialb_bus bus; - void (*on_netinfo)(struct most_interface *, - unsigned char, unsigned char *); + void (*on_netinfo)(struct most_interface *most_iface, + unsigned char link_state, unsigned char *addrs); }; #define iface_to_hdm(iface) container_of(iface, struct dim2_hdm, most_iface) @@ -156,7 +151,7 @@ void dimcb_io_write(u32 __iomem *ptr32, u32 value) */ void dimcb_on_error(u8 error_id, const char *error_message) { - pr_err("dimcb_on_error: error_id - %d, error_message - %s\n", error_id, + pr_err("%s: error_id - %d, error_message - %s\n", __func__, error_id, error_message); } @@ -744,7 +739,6 @@ static int dim2_probe(struct platform_device *pdev) struct dim2_hdm *dev; struct resource *res; int ret, i; - struct kobject *kobj; int irq; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); @@ -832,17 +826,20 @@ static int dim2_probe(struct platform_device *pdev) dev->most_iface.enqueue = enqueue; dev->most_iface.poison_channel = poison_channel; dev->most_iface.request_netinfo = request_netinfo; + dev->dev.init_name = "dim2_state"; + dev->dev.parent = &dev->most_iface.dev; - kobj = most_register_interface(&dev->most_iface); - if (IS_ERR(kobj)) { - ret = PTR_ERR(kobj); + ret = most_register_interface(&dev->most_iface); + if (ret) { dev_err(&pdev->dev, "failed to register MOST interface\n"); goto err_stop_thread; } - ret = dim2_sysfs_probe(&dev->bus, kobj); - if (ret) + ret = dim2_sysfs_probe(&dev->dev); + if (ret) { + dev_err(&pdev->dev, "failed to create sysfs attribute\n"); goto err_unreg_iface; + } ret = startup_dim(pdev); if (ret) { @@ -853,7 +850,7 @@ static int dim2_probe(struct platform_device *pdev) return 0; err_destroy_bus: - dim2_sysfs_destroy(&dev->bus); + dim2_sysfs_destroy(&dev->dev); err_unreg_iface: most_deregister_interface(&dev->most_iface); err_stop_thread: @@ -881,7 +878,7 @@ static int dim2_remove(struct platform_device *pdev) if (pdata && pdata->destroy) pdata->destroy(pdata); - dim2_sysfs_destroy(&dev->bus); + dim2_sysfs_destroy(&dev->dev); most_deregister_interface(&dev->most_iface); kthread_stop(dev->netinfo_task); diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.h b/drivers/staging/most/dim2/dim2.h index 4050e7c764ed..6a9fc51a2eb4 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hdm.h +++ b/drivers/staging/most/dim2/dim2.h @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * dim2_hdm.h - MediaLB DIM2 HDM Header + * dim2.h - MediaLB DIM2 HDM Header * * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #ifndef DIM2_HDM_H diff --git a/drivers/staging/most/hdm-dim2/dim2_errors.h b/drivers/staging/most/dim2/errors.h index 66343ba426c1..3487510fbd2f 100644 --- a/drivers/staging/most/hdm-dim2/dim2_errors.h +++ b/drivers/staging/most/dim2/errors.h @@ -1,15 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * dim2_errors.h - Definitions of errors for DIM2 HAL API + * errors.h - Definitions of errors for DIM2 HAL API * (MediaLB, Device Interface Macro IP, OS62420) * * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #ifndef _MOST_DIM_ERRORS_H diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.c b/drivers/staging/most/dim2/hal.c index 91484643d289..17c04e1c5e62 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hal.c +++ b/drivers/staging/most/dim2/hal.c @@ -1,22 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * dim2_hal.c - DIM2 HAL implementation + * hal.c - DIM2 HAL implementation * (MediaLB, Device Interface Macro IP, OS62420) * * Copyright (C) 2015-2016, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ /* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */ -#include "dim2_hal.h" -#include "dim2_errors.h" -#include "dim2_reg.h" +#include "hal.h" +#include "errors.h" +#include "reg.h" #include <linux/stddef.h> #include <linux/kernel.h> diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.h b/drivers/staging/most/dim2/hal.h index 6df6ea5f7da4..e04a5350f134 100644 --- a/drivers/staging/most/hdm-dim2/dim2_hal.h +++ b/drivers/staging/most/dim2/hal.h @@ -1,22 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * dim2_hal.h - DIM2 HAL interface + * hal.h - DIM2 HAL interface * (MediaLB, Device Interface Macro IP, OS62420) * * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #ifndef _DIM2_HAL_H #define _DIM2_HAL_H #include <linux/types.h> -#include "dim2_reg.h" +#include "reg.h" /* * The values below are specified in the hardware specification. diff --git a/drivers/staging/most/hdm-dim2/dim2_reg.h b/drivers/staging/most/dim2/reg.h index f7d9fbcd29f2..69cbf78239f1 100644 --- a/drivers/staging/most/hdm-dim2/dim2_reg.h +++ b/drivers/staging/most/dim2/reg.h @@ -1,15 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * dim2_reg.h - Definitions for registers of DIM2 + * reg.h - Definitions for registers of DIM2 * (MediaLB, Device Interface Macro IP, OS62420) * * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #ifndef DIM2_OS62420_H diff --git a/drivers/staging/most/dim2/sysfs.c b/drivers/staging/most/dim2/sysfs.c new file mode 100644 index 000000000000..c85b2cdcdca3 --- /dev/null +++ b/drivers/staging/most/dim2/sysfs.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * sysfs.c - MediaLB sysfs information + * + * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG + */ + +/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/kernel.h> +#include "sysfs.h" +#include <linux/device.h> + +static ssize_t state_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + bool state = dim2_sysfs_get_state_cb(); + + return sprintf(buf, "%s\n", state ? "locked" : ""); +} + +static DEVICE_ATTR_RO(state); + +static struct attribute *dev_attrs[] = { + &dev_attr_state.attr, + NULL, +}; + +static struct attribute_group dev_attr_group = { + .attrs = dev_attrs, +}; + +static const struct attribute_group *dev_attr_groups[] = { + &dev_attr_group, + NULL, +}; + +int dim2_sysfs_probe(struct device *dev) +{ + dev->groups = dev_attr_groups; + return device_register(dev); +} + +void dim2_sysfs_destroy(struct device *dev) +{ + device_unregister(dev); +} diff --git a/drivers/staging/most/dim2/sysfs.h b/drivers/staging/most/dim2/sysfs.h new file mode 100644 index 000000000000..33756a3bffe2 --- /dev/null +++ b/drivers/staging/most/dim2/sysfs.h @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * sysfs.h - MediaLB sysfs information + * + * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG + */ + +/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */ + +#ifndef DIM2_SYSFS_H +#define DIM2_SYSFS_H + +#include <linux/kobject.h> + +struct medialb_bus { + struct kobject kobj_group; +}; + +struct device; + +int dim2_sysfs_probe(struct device *dev); +void dim2_sysfs_destroy(struct device *dev); + +/* + * callback, + * must deliver MediaLB state as true if locked or false if unlocked + */ +bool dim2_sysfs_get_state_cb(void); + +#endif /* DIM2_SYSFS_H */ diff --git a/drivers/staging/most/hdm-dim2/Makefile b/drivers/staging/most/hdm-dim2/Makefile deleted file mode 100644 index 6bbee879a8ea..000000000000 --- a/drivers/staging/most/hdm-dim2/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-$(CONFIG_HDM_DIM2) += hdm_dim2.o - -hdm_dim2-objs := dim2_hdm.o dim2_hal.o dim2_sysfs.o -ccflags-y += -Idrivers/staging/most/mostcore/ -ccflags-y += -Idrivers/staging/most/aim-network/ diff --git a/drivers/staging/most/hdm-dim2/dim2_sysfs.c b/drivers/staging/most/hdm-dim2/dim2_sysfs.c deleted file mode 100644 index d8b22f91d2c3..000000000000 --- a/drivers/staging/most/hdm-dim2/dim2_sysfs.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * dim2_sysfs.c - MediaLB sysfs information - * - * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. - */ - -/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include "dim2_sysfs.h" - -struct bus_attr { - struct attribute attr; - ssize_t (*show)(struct medialb_bus *bus, char *buf); - ssize_t (*store)(struct medialb_bus *bus, const char *buf, - size_t count); -}; - -static ssize_t state_show(struct medialb_bus *bus, char *buf) -{ - bool state = dim2_sysfs_get_state_cb(); - - return sprintf(buf, "%s\n", state ? "locked" : ""); -} - -static struct bus_attr state_attr = __ATTR_RO(state); - -static struct attribute *bus_default_attrs[] = { - &state_attr.attr, - NULL, -}; - -static const struct attribute_group bus_attr_group = { - .attrs = bus_default_attrs, -}; - -static void bus_kobj_release(struct kobject *kobj) -{ -} - -static ssize_t bus_kobj_attr_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct medialb_bus *bus = - container_of(kobj, struct medialb_bus, kobj_group); - struct bus_attr *xattr = container_of(attr, struct bus_attr, attr); - - if (!xattr->show) - return -EIO; - - return xattr->show(bus, buf); -} - -static ssize_t bus_kobj_attr_store(struct kobject *kobj, struct attribute *attr, - const char *buf, size_t count) -{ - struct medialb_bus *bus = - container_of(kobj, struct medialb_bus, kobj_group); - struct bus_attr *xattr = container_of(attr, struct bus_attr, attr); - - if (!xattr->store) - return -EIO; - - return xattr->store(bus, buf, count); -} - -static struct sysfs_ops const bus_kobj_sysfs_ops = { - .show = bus_kobj_attr_show, - .store = bus_kobj_attr_store, -}; - -static struct kobj_type bus_ktype = { - .release = bus_kobj_release, - .sysfs_ops = &bus_kobj_sysfs_ops, -}; - -int dim2_sysfs_probe(struct medialb_bus *bus, struct kobject *parent_kobj) -{ - int err; - - kobject_init(&bus->kobj_group, &bus_ktype); - err = kobject_add(&bus->kobj_group, parent_kobj, "bus"); - if (err) { - pr_err("kobject_add() failed: %d\n", err); - goto err_kobject_add; - } - - err = sysfs_create_group(&bus->kobj_group, &bus_attr_group); - if (err) { - pr_err("sysfs_create_group() failed: %d\n", err); - goto err_create_group; - } - - return 0; - -err_create_group: - kobject_put(&bus->kobj_group); - -err_kobject_add: - return err; -} - -void dim2_sysfs_destroy(struct medialb_bus *bus) -{ - kobject_put(&bus->kobj_group); -} diff --git a/drivers/staging/most/hdm-dim2/dim2_sysfs.h b/drivers/staging/most/hdm-dim2/dim2_sysfs.h deleted file mode 100644 index b71dd027ebc7..000000000000 --- a/drivers/staging/most/hdm-dim2/dim2_sysfs.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * dim2_sysfs.h - MediaLB sysfs information - * - * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. - */ - -/* Author: Andrey Shvetsov <andrey.shvetsov@k2l.de> */ - -#ifndef DIM2_SYSFS_H -#define DIM2_SYSFS_H - -#include <linux/kobject.h> - -struct medialb_bus { - struct kobject kobj_group; -}; - -struct dim2_hdm; - -int dim2_sysfs_probe(struct medialb_bus *bus, struct kobject *parent_kobj); -void dim2_sysfs_destroy(struct medialb_bus *bus); - -/* - * callback, - * must deliver MediaLB state as true if locked or false if unlocked - */ -bool dim2_sysfs_get_state_cb(void); - -#endif /* DIM2_SYSFS_H */ diff --git a/drivers/staging/most/hdm-i2c/Makefile b/drivers/staging/most/hdm-i2c/Makefile deleted file mode 100644 index 03a4a59b1f9f..000000000000 --- a/drivers/staging/most/hdm-i2c/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -obj-$(CONFIG_HDM_I2C) += hdm_i2c.o - -ccflags-y += -Idrivers/staging/most/mostcore/ diff --git a/drivers/staging/most/hdm-usb/Makefile b/drivers/staging/most/hdm-usb/Makefile deleted file mode 100644 index 6bbacb41e94b..000000000000 --- a/drivers/staging/most/hdm-usb/Makefile +++ /dev/null @@ -1,4 +0,0 @@ -obj-$(CONFIG_HDM_USB) += hdm_usb.o - -ccflags-y += -Idrivers/staging/most/mostcore/ -ccflags-y += -Idrivers/staging/most/aim-network/ diff --git a/drivers/staging/most/hdm-i2c/Kconfig b/drivers/staging/most/i2c/Kconfig index 6fd7983668ad..79d0ff27f56d 100644 --- a/drivers/staging/most/hdm-i2c/Kconfig +++ b/drivers/staging/most/i2c/Kconfig @@ -2,11 +2,11 @@ # MOST I2C configuration # -config HDM_I2C - tristate "I2C HDM" +config MOST_I2C + tristate "I2C" depends on I2C ---help--- Say Y here if you want to connect via I2C to network tranceiver. To compile this driver as a module, choose M here: the - module will be called hdm_i2c. + module will be called most_i2c. diff --git a/drivers/staging/most/i2c/Makefile b/drivers/staging/most/i2c/Makefile new file mode 100644 index 000000000000..a7d094c1e1c2 --- /dev/null +++ b/drivers/staging/most/i2c/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_I2C) += most_i2c.o + +most_i2c-objs := i2c.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/hdm-i2c/hdm_i2c.c b/drivers/staging/most/i2c/i2c.c index 2b4de404e46a..141239fc9f51 100644 --- a/drivers/staging/most/hdm-i2c/hdm_i2c.c +++ b/drivers/staging/most/i2c/i2c.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * hdm_i2c.c - Hardware Dependent Module for I2C Interface + * i2c.c - Hardware Dependent Module for I2C Interface * * Copyright (C) 2013-2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -21,7 +15,7 @@ #include <linux/interrupt.h> #include <linux/err.h> -#include <mostcore.h> +#include "most/core.h" enum { CH_RX, CH_TX, NUM_CHANNELS }; @@ -309,7 +303,6 @@ static int i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct hdm_i2c *dev; int ret, i; - struct kobject *kobj; dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) @@ -347,11 +340,11 @@ static int i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) dev->client = client; i2c_set_clientdata(client, dev); - kobj = most_register_interface(&dev->most_iface); - if (IS_ERR(kobj)) { + ret = most_register_interface(&dev->most_iface); + if (ret) { pr_err("Failed to register i2c as a MOST interface\n"); kfree(dev); - return PTR_ERR(kobj); + return ret; } dev->polling_mode = polling_req || client->irq <= 0; diff --git a/drivers/staging/most/mostcore/Kconfig b/drivers/staging/most/mostcore/Kconfig deleted file mode 100644 index 47172546d728..000000000000 --- a/drivers/staging/most/mostcore/Kconfig +++ /dev/null @@ -1,14 +0,0 @@ -# -# MOSTCore configuration -# - -config MOSTCORE - tristate "MOST Core" - depends on HAS_DMA - - ---help--- - Say Y here if you want to enable MOST support. - This device driver needs at least an additional AIM and HDM to work. - - To compile this driver as a module, choose M here: the - module will be called mostcore. diff --git a/drivers/staging/most/mostcore/Makefile b/drivers/staging/most/mostcore/Makefile deleted file mode 100644 index a078f01cf7c2..000000000000 --- a/drivers/staging/most/mostcore/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -obj-$(CONFIG_MOSTCORE) += mostcore.o - -mostcore-objs := core.o diff --git a/drivers/staging/most/mostcore/core.c b/drivers/staging/most/mostcore/core.c deleted file mode 100644 index 069269db394c..000000000000 --- a/drivers/staging/most/mostcore/core.c +++ /dev/null @@ -1,1949 +0,0 @@ -/* - * core.c - Implementation of core module of MOST Linux driver stack - * - * Copyright (C) 2013-2015 Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt -#include <linux/module.h> -#include <linux/fs.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/list.h> -#include <linux/poll.h> -#include <linux/wait.h> -#include <linux/kobject.h> -#include <linux/mutex.h> -#include <linux/completion.h> -#include <linux/sysfs.h> -#include <linux/kthread.h> -#include <linux/dma-mapping.h> -#include <linux/idr.h> -#include "mostcore.h" - -#define MAX_CHANNELS 64 -#define STRING_SIZE 80 - -static struct class *most_class; -static struct device *core_dev; -static struct ida mdev_id; -static int dummy_num_buffers; - -struct most_c_aim_obj { - struct most_aim *ptr; - int refs; - int num_buffers; -}; - -struct most_c_obj { - struct kobject kobj; - struct completion cleanup; - atomic_t mbo_ref; - atomic_t mbo_nq_level; - u16 channel_id; - bool is_poisoned; - struct mutex start_mutex; - struct mutex nq_mutex; /* nq thread synchronization */ - int is_starving; - struct most_interface *iface; - struct most_inst_obj *inst; - struct most_channel_config cfg; - bool keep_mbo; - bool enqueue_halt; - struct list_head fifo; - spinlock_t fifo_lock; - struct list_head halt_fifo; - struct list_head list; - struct most_c_aim_obj aim0; - struct most_c_aim_obj aim1; - struct list_head trash_fifo; - struct task_struct *hdm_enqueue_task; - wait_queue_head_t hdm_fifo_wq; -}; - -#define to_c_obj(d) container_of(d, struct most_c_obj, kobj) - -struct most_inst_obj { - int dev_id; - struct most_interface *iface; - struct list_head channel_list; - struct most_c_obj *channel[MAX_CHANNELS]; - struct kobject kobj; - struct list_head list; -}; - -static const struct { - int most_ch_data_type; - const char *name; -} ch_data_type[] = { - { MOST_CH_CONTROL, "control\n" }, - { MOST_CH_ASYNC, "async\n" }, - { MOST_CH_SYNC, "sync\n" }, - { MOST_CH_ISOC, "isoc\n"}, - { MOST_CH_ISOC, "isoc_avp\n"}, -}; - -#define to_inst_obj(d) container_of(d, struct most_inst_obj, kobj) - -/** - * list_pop_mbo - retrieves the first MBO of the list and removes it - * @ptr: the list head to grab the MBO from. - */ -#define list_pop_mbo(ptr) \ -({ \ - struct mbo *_mbo = list_first_entry(ptr, struct mbo, list); \ - list_del(&_mbo->list); \ - _mbo; \ -}) - -/* ___ ___ - * ___C H A N N E L___ - */ - -/** - * struct most_c_attr - to access the attributes of a channel object - * @attr: attributes of a channel - * @show: pointer to the show function - * @store: pointer to the store function - */ -struct most_c_attr { - struct attribute attr; - ssize_t (*show)(struct most_c_obj *d, - struct most_c_attr *attr, - char *buf); - ssize_t (*store)(struct most_c_obj *d, - struct most_c_attr *attr, - const char *buf, - size_t count); -}; - -#define to_channel_attr(a) container_of(a, struct most_c_attr, attr) - -/** - * channel_attr_show - show function of channel object - * @kobj: pointer to its kobject - * @attr: pointer to its attributes - * @buf: buffer - */ -static ssize_t channel_attr_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct most_c_attr *channel_attr = to_channel_attr(attr); - struct most_c_obj *c_obj = to_c_obj(kobj); - - if (!channel_attr->show) - return -EIO; - - return channel_attr->show(c_obj, channel_attr, buf); -} - -/** - * channel_attr_store - store function of channel object - * @kobj: pointer to its kobject - * @attr: pointer to its attributes - * @buf: buffer - * @len: length of buffer - */ -static ssize_t channel_attr_store(struct kobject *kobj, - struct attribute *attr, - const char *buf, - size_t len) -{ - struct most_c_attr *channel_attr = to_channel_attr(attr); - struct most_c_obj *c_obj = to_c_obj(kobj); - - if (!channel_attr->store) - return -EIO; - return channel_attr->store(c_obj, channel_attr, buf, len); -} - -static const struct sysfs_ops most_channel_sysfs_ops = { - .show = channel_attr_show, - .store = channel_attr_store, -}; - -/** - * most_free_mbo_coherent - free an MBO and its coherent buffer - * @mbo: buffer to be released - * - */ -static void most_free_mbo_coherent(struct mbo *mbo) -{ - struct most_c_obj *c = mbo->context; - u16 const coherent_buf_size = c->cfg.buffer_size + c->cfg.extra_len; - - dma_free_coherent(NULL, coherent_buf_size, mbo->virt_address, - mbo->bus_address); - kfree(mbo); - if (atomic_sub_and_test(1, &c->mbo_ref)) - complete(&c->cleanup); -} - -/** - * flush_channel_fifos - clear the channel fifos - * @c: pointer to channel object - */ -static void flush_channel_fifos(struct most_c_obj *c) -{ - unsigned long flags, hf_flags; - struct mbo *mbo, *tmp; - - if (list_empty(&c->fifo) && list_empty(&c->halt_fifo)) - return; - - spin_lock_irqsave(&c->fifo_lock, flags); - list_for_each_entry_safe(mbo, tmp, &c->fifo, list) { - list_del(&mbo->list); - spin_unlock_irqrestore(&c->fifo_lock, flags); - most_free_mbo_coherent(mbo); - spin_lock_irqsave(&c->fifo_lock, flags); - } - spin_unlock_irqrestore(&c->fifo_lock, flags); - - spin_lock_irqsave(&c->fifo_lock, hf_flags); - list_for_each_entry_safe(mbo, tmp, &c->halt_fifo, list) { - list_del(&mbo->list); - spin_unlock_irqrestore(&c->fifo_lock, hf_flags); - most_free_mbo_coherent(mbo); - spin_lock_irqsave(&c->fifo_lock, hf_flags); - } - spin_unlock_irqrestore(&c->fifo_lock, hf_flags); - - if (unlikely((!list_empty(&c->fifo) || !list_empty(&c->halt_fifo)))) - pr_info("WARN: fifo | trash fifo not empty\n"); -} - -/** - * flush_trash_fifo - clear the trash fifo - * @c: pointer to channel object - */ -static int flush_trash_fifo(struct most_c_obj *c) -{ - struct mbo *mbo, *tmp; - unsigned long flags; - - spin_lock_irqsave(&c->fifo_lock, flags); - list_for_each_entry_safe(mbo, tmp, &c->trash_fifo, list) { - list_del(&mbo->list); - spin_unlock_irqrestore(&c->fifo_lock, flags); - most_free_mbo_coherent(mbo); - spin_lock_irqsave(&c->fifo_lock, flags); - } - spin_unlock_irqrestore(&c->fifo_lock, flags); - return 0; -} - -/** - * most_channel_release - release function of channel object - * @kobj: pointer to channel's kobject - */ -static void most_channel_release(struct kobject *kobj) -{ - struct most_c_obj *c = to_c_obj(kobj); - - kfree(c); -} - -static ssize_t available_directions_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - unsigned int i = c->channel_id; - - strcpy(buf, ""); - if (c->iface->channel_vector[i].direction & MOST_CH_RX) - strcat(buf, "rx "); - if (c->iface->channel_vector[i].direction & MOST_CH_TX) - strcat(buf, "tx "); - strcat(buf, "\n"); - return strlen(buf); -} - -static ssize_t available_datatypes_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - unsigned int i = c->channel_id; - - strcpy(buf, ""); - if (c->iface->channel_vector[i].data_type & MOST_CH_CONTROL) - strcat(buf, "control "); - if (c->iface->channel_vector[i].data_type & MOST_CH_ASYNC) - strcat(buf, "async "); - if (c->iface->channel_vector[i].data_type & MOST_CH_SYNC) - strcat(buf, "sync "); - if (c->iface->channel_vector[i].data_type & MOST_CH_ISOC) - strcat(buf, "isoc "); - strcat(buf, "\n"); - return strlen(buf); -} - -static ssize_t number_of_packet_buffers_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - unsigned int i = c->channel_id; - - return snprintf(buf, PAGE_SIZE, "%d\n", - c->iface->channel_vector[i].num_buffers_packet); -} - -static ssize_t number_of_stream_buffers_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - unsigned int i = c->channel_id; - - return snprintf(buf, PAGE_SIZE, "%d\n", - c->iface->channel_vector[i].num_buffers_streaming); -} - -static ssize_t size_of_packet_buffer_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - unsigned int i = c->channel_id; - - return snprintf(buf, PAGE_SIZE, "%d\n", - c->iface->channel_vector[i].buffer_size_packet); -} - -static ssize_t size_of_stream_buffer_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - unsigned int i = c->channel_id; - - return snprintf(buf, PAGE_SIZE, "%d\n", - c->iface->channel_vector[i].buffer_size_streaming); -} - -static ssize_t channel_starving_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%d\n", c->is_starving); -} - -static ssize_t set_number_of_buffers_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.num_buffers); -} - -static ssize_t set_number_of_buffers_store(struct most_c_obj *c, - struct most_c_attr *attr, - const char *buf, - size_t count) -{ - int ret = kstrtou16(buf, 0, &c->cfg.num_buffers); - - if (ret) - return ret; - return count; -} - -static ssize_t set_buffer_size_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.buffer_size); -} - -static ssize_t set_buffer_size_store(struct most_c_obj *c, - struct most_c_attr *attr, - const char *buf, - size_t count) -{ - int ret = kstrtou16(buf, 0, &c->cfg.buffer_size); - - if (ret) - return ret; - return count; -} - -static ssize_t set_direction_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - if (c->cfg.direction & MOST_CH_TX) - return snprintf(buf, PAGE_SIZE, "tx\n"); - else if (c->cfg.direction & MOST_CH_RX) - return snprintf(buf, PAGE_SIZE, "rx\n"); - return snprintf(buf, PAGE_SIZE, "unconfigured\n"); -} - -static ssize_t set_direction_store(struct most_c_obj *c, - struct most_c_attr *attr, - const char *buf, - size_t count) -{ - if (!strcmp(buf, "dir_rx\n")) { - c->cfg.direction = MOST_CH_RX; - } else if (!strcmp(buf, "rx\n")) { - c->cfg.direction = MOST_CH_RX; - } else if (!strcmp(buf, "dir_tx\n")) { - c->cfg.direction = MOST_CH_TX; - } else if (!strcmp(buf, "tx\n")) { - c->cfg.direction = MOST_CH_TX; - } else { - pr_info("WARN: invalid attribute settings\n"); - return -EINVAL; - } - return count; -} - -static ssize_t set_datatype_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) { - if (c->cfg.data_type & ch_data_type[i].most_ch_data_type) - return snprintf(buf, PAGE_SIZE, ch_data_type[i].name); - } - return snprintf(buf, PAGE_SIZE, "unconfigured\n"); -} - -static ssize_t set_datatype_store(struct most_c_obj *c, - struct most_c_attr *attr, - const char *buf, - size_t count) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(ch_data_type); i++) { - if (!strcmp(buf, ch_data_type[i].name)) { - c->cfg.data_type = ch_data_type[i].most_ch_data_type; - break; - } - } - - if (i == ARRAY_SIZE(ch_data_type)) { - pr_info("WARN: invalid attribute settings\n"); - return -EINVAL; - } - return count; -} - -static ssize_t set_subbuffer_size_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.subbuffer_size); -} - -static ssize_t set_subbuffer_size_store(struct most_c_obj *c, - struct most_c_attr *attr, - const char *buf, - size_t count) -{ - int ret = kstrtou16(buf, 0, &c->cfg.subbuffer_size); - - if (ret) - return ret; - return count; -} - -static ssize_t set_packets_per_xact_show(struct most_c_obj *c, - struct most_c_attr *attr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%d\n", c->cfg.packets_per_xact); -} - -static ssize_t set_packets_per_xact_store(struct most_c_obj *c, - struct most_c_attr *attr, - const char *buf, - size_t count) -{ - int ret = kstrtou16(buf, 0, &c->cfg.packets_per_xact); - - if (ret) - return ret; - return count; -} - -static struct most_c_attr most_c_attrs[] = { - __ATTR_RO(available_directions), - __ATTR_RO(available_datatypes), - __ATTR_RO(number_of_packet_buffers), - __ATTR_RO(number_of_stream_buffers), - __ATTR_RO(size_of_stream_buffer), - __ATTR_RO(size_of_packet_buffer), - __ATTR_RO(channel_starving), - __ATTR_RW(set_buffer_size), - __ATTR_RW(set_number_of_buffers), - __ATTR_RW(set_direction), - __ATTR_RW(set_datatype), - __ATTR_RW(set_subbuffer_size), - __ATTR_RW(set_packets_per_xact), -}; - -/** - * most_channel_def_attrs - array of default attributes of channel object - */ -static struct attribute *most_channel_def_attrs[] = { - &most_c_attrs[0].attr, - &most_c_attrs[1].attr, - &most_c_attrs[2].attr, - &most_c_attrs[3].attr, - &most_c_attrs[4].attr, - &most_c_attrs[5].attr, - &most_c_attrs[6].attr, - &most_c_attrs[7].attr, - &most_c_attrs[8].attr, - &most_c_attrs[9].attr, - &most_c_attrs[10].attr, - &most_c_attrs[11].attr, - &most_c_attrs[12].attr, - NULL, -}; - -static struct kobj_type most_channel_ktype = { - .sysfs_ops = &most_channel_sysfs_ops, - .release = most_channel_release, - .default_attrs = most_channel_def_attrs, -}; - -static struct kset *most_channel_kset; - -/** - * create_most_c_obj - allocates a channel object - * @name: name of the channel object - * @parent: parent kobject - * - * This create a channel object and registers it with sysfs. - * Returns a pointer to the object or NULL when something went wrong. - */ -static struct most_c_obj * -create_most_c_obj(const char *name, struct kobject *parent) -{ - struct most_c_obj *c; - int retval; - - c = kzalloc(sizeof(*c), GFP_KERNEL); - if (!c) - return NULL; - c->kobj.kset = most_channel_kset; - retval = kobject_init_and_add(&c->kobj, &most_channel_ktype, parent, - "%s", name); - if (retval) { - kobject_put(&c->kobj); - return NULL; - } - kobject_uevent(&c->kobj, KOBJ_ADD); - return c; -} - -/* ___ ___ - * ___I N S T A N C E___ - */ - -static struct list_head instance_list; - -/** - * struct most_inst_attribute - to access the attributes of instance object - * @attr: attributes of an instance - * @show: pointer to the show function - * @store: pointer to the store function - */ -struct most_inst_attribute { - struct attribute attr; - ssize_t (*show)(struct most_inst_obj *d, - struct most_inst_attribute *attr, - char *buf); - ssize_t (*store)(struct most_inst_obj *d, - struct most_inst_attribute *attr, - const char *buf, - size_t count); -}; - -#define to_instance_attr(a) \ - container_of(a, struct most_inst_attribute, attr) - -/** - * instance_attr_show - show function for an instance object - * @kobj: pointer to kobject - * @attr: pointer to attribute struct - * @buf: buffer - */ -static ssize_t instance_attr_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct most_inst_attribute *instance_attr; - struct most_inst_obj *instance_obj; - - instance_attr = to_instance_attr(attr); - instance_obj = to_inst_obj(kobj); - - if (!instance_attr->show) - return -EIO; - - return instance_attr->show(instance_obj, instance_attr, buf); -} - -/** - * instance_attr_store - store function for an instance object - * @kobj: pointer to kobject - * @attr: pointer to attribute struct - * @buf: buffer - * @len: length of buffer - */ -static ssize_t instance_attr_store(struct kobject *kobj, - struct attribute *attr, - const char *buf, - size_t len) -{ - struct most_inst_attribute *instance_attr; - struct most_inst_obj *instance_obj; - - instance_attr = to_instance_attr(attr); - instance_obj = to_inst_obj(kobj); - - if (!instance_attr->store) - return -EIO; - - return instance_attr->store(instance_obj, instance_attr, buf, len); -} - -static const struct sysfs_ops most_inst_sysfs_ops = { - .show = instance_attr_show, - .store = instance_attr_store, -}; - -/** - * most_inst_release - release function for instance object - * @kobj: pointer to instance's kobject - * - * This frees the allocated memory for the instance object - */ -static void most_inst_release(struct kobject *kobj) -{ - struct most_inst_obj *inst = to_inst_obj(kobj); - - kfree(inst); -} - -static ssize_t description_show(struct most_inst_obj *instance_obj, - struct most_inst_attribute *attr, - char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%s\n", - instance_obj->iface->description); -} - -static ssize_t interface_show(struct most_inst_obj *instance_obj, - struct most_inst_attribute *attr, - char *buf) -{ - switch (instance_obj->iface->interface) { - case ITYPE_LOOPBACK: - return snprintf(buf, PAGE_SIZE, "loopback\n"); - case ITYPE_I2C: - return snprintf(buf, PAGE_SIZE, "i2c\n"); - case ITYPE_I2S: - return snprintf(buf, PAGE_SIZE, "i2s\n"); - case ITYPE_TSI: - return snprintf(buf, PAGE_SIZE, "tsi\n"); - case ITYPE_HBI: - return snprintf(buf, PAGE_SIZE, "hbi\n"); - case ITYPE_MEDIALB_DIM: - return snprintf(buf, PAGE_SIZE, "mlb_dim\n"); - case ITYPE_MEDIALB_DIM2: - return snprintf(buf, PAGE_SIZE, "mlb_dim2\n"); - case ITYPE_USB: - return snprintf(buf, PAGE_SIZE, "usb\n"); - case ITYPE_PCIE: - return snprintf(buf, PAGE_SIZE, "pcie\n"); - } - return snprintf(buf, PAGE_SIZE, "unknown\n"); -} - -static struct most_inst_attribute most_inst_attr_description = - __ATTR_RO(description); - -static struct most_inst_attribute most_inst_attr_interface = - __ATTR_RO(interface); - -static struct attribute *most_inst_def_attrs[] = { - &most_inst_attr_description.attr, - &most_inst_attr_interface.attr, - NULL, -}; - -static struct kobj_type most_inst_ktype = { - .sysfs_ops = &most_inst_sysfs_ops, - .release = most_inst_release, - .default_attrs = most_inst_def_attrs, -}; - -static struct kset *most_inst_kset; - -/** - * create_most_inst_obj - creates an instance object - * @name: name of the object to be created - * - * This allocates memory for an instance structure, assigns the proper kset - * and registers it with sysfs. - * - * Returns a pointer to the instance object or NULL when something went wrong. - */ -static struct most_inst_obj *create_most_inst_obj(const char *name) -{ - struct most_inst_obj *inst; - int retval; - - inst = kzalloc(sizeof(*inst), GFP_KERNEL); - if (!inst) - return NULL; - inst->kobj.kset = most_inst_kset; - retval = kobject_init_and_add(&inst->kobj, &most_inst_ktype, NULL, - "%s", name); - if (retval) { - kobject_put(&inst->kobj); - return NULL; - } - kobject_uevent(&inst->kobj, KOBJ_ADD); - return inst; -} - -/** - * destroy_most_inst_obj - MOST instance release function - * @inst: pointer to the instance object - * - * This decrements the reference counter of the instance object. - * If the reference count turns zero, its release function is called - */ -static void destroy_most_inst_obj(struct most_inst_obj *inst) -{ - struct most_c_obj *c, *tmp; - - list_for_each_entry_safe(c, tmp, &inst->channel_list, list) { - flush_trash_fifo(c); - flush_channel_fifos(c); - kobject_put(&c->kobj); - } - kobject_put(&inst->kobj); -} - -/* ___ ___ - * ___A I M___ - */ -struct most_aim_obj { - struct kobject kobj; - struct list_head list; - struct most_aim *driver; -}; - -#define to_aim_obj(d) container_of(d, struct most_aim_obj, kobj) - -static struct list_head aim_list; - -/** - * struct most_aim_attribute - to access the attributes of AIM object - * @attr: attributes of an AIM - * @show: pointer to the show function - * @store: pointer to the store function - */ -struct most_aim_attribute { - struct attribute attr; - ssize_t (*show)(struct most_aim_obj *d, - struct most_aim_attribute *attr, - char *buf); - ssize_t (*store)(struct most_aim_obj *d, - struct most_aim_attribute *attr, - const char *buf, - size_t count); -}; - -#define to_aim_attr(a) container_of(a, struct most_aim_attribute, attr) - -/** - * aim_attr_show - show function of an AIM object - * @kobj: pointer to kobject - * @attr: pointer to attribute struct - * @buf: buffer - */ -static ssize_t aim_attr_show(struct kobject *kobj, - struct attribute *attr, - char *buf) -{ - struct most_aim_attribute *aim_attr; - struct most_aim_obj *aim_obj; - - aim_attr = to_aim_attr(attr); - aim_obj = to_aim_obj(kobj); - - if (!aim_attr->show) - return -EIO; - - return aim_attr->show(aim_obj, aim_attr, buf); -} - -/** - * aim_attr_store - store function of an AIM object - * @kobj: pointer to kobject - * @attr: pointer to attribute struct - * @buf: buffer - * @len: length of buffer - */ -static ssize_t aim_attr_store(struct kobject *kobj, - struct attribute *attr, - const char *buf, - size_t len) -{ - struct most_aim_attribute *aim_attr; - struct most_aim_obj *aim_obj; - - aim_attr = to_aim_attr(attr); - aim_obj = to_aim_obj(kobj); - - if (!aim_attr->store) - return -EIO; - return aim_attr->store(aim_obj, aim_attr, buf, len); -} - -static const struct sysfs_ops most_aim_sysfs_ops = { - .show = aim_attr_show, - .store = aim_attr_store, -}; - -/** - * most_aim_release - AIM release function - * @kobj: pointer to AIM's kobject - */ -static void most_aim_release(struct kobject *kobj) -{ - struct most_aim_obj *aim_obj = to_aim_obj(kobj); - - kfree(aim_obj); -} - -static ssize_t links_show(struct most_aim_obj *aim_obj, - struct most_aim_attribute *attr, - char *buf) -{ - struct most_c_obj *c; - struct most_inst_obj *i; - int offs = 0; - - list_for_each_entry(i, &instance_list, list) { - list_for_each_entry(c, &i->channel_list, list) { - if (c->aim0.ptr == aim_obj->driver || - c->aim1.ptr == aim_obj->driver) { - offs += snprintf(buf + offs, PAGE_SIZE - offs, - "%s:%s\n", - kobject_name(&i->kobj), - kobject_name(&c->kobj)); - } - } - } - - return offs; -} - -/** - * split_string - parses and changes string in the buffer buf and - * splits it into two mandatory and one optional substrings. - * - * @buf: complete string from attribute 'add_channel' - * @a: address of pointer to 1st substring (=instance name) - * @b: address of pointer to 2nd substring (=channel name) - * @c: optional address of pointer to 3rd substring (=user defined name) - * - * Examples: - * - * Input: "mdev0:ch6:my_channel\n" or - * "mdev0:ch6:my_channel" - * - * Output: *a -> "mdev0", *b -> "ch6", *c -> "my_channel" - * - * Input: "mdev1:ep81\n" - * Output: *a -> "mdev1", *b -> "ep81", *c -> "" - * - * Input: "mdev1:ep81" - * Output: *a -> "mdev1", *b -> "ep81", *c == NULL - */ -static int split_string(char *buf, char **a, char **b, char **c) -{ - *a = strsep(&buf, ":"); - if (!*a) - return -EIO; - - *b = strsep(&buf, ":\n"); - if (!*b) - return -EIO; - - if (c) - *c = strsep(&buf, ":\n"); - - return 0; -} - -/** - * get_channel_by_name - get pointer to channel object - * @mdev: name of the device instance - * @mdev_ch: name of the respective channel - * - * This retrieves the pointer to a channel object. - */ -static struct -most_c_obj *get_channel_by_name(char *mdev, char *mdev_ch) -{ - struct most_c_obj *c, *tmp; - struct most_inst_obj *i, *i_tmp; - int found = 0; - - list_for_each_entry_safe(i, i_tmp, &instance_list, list) { - if (!strcmp(kobject_name(&i->kobj), mdev)) { - found++; - break; - } - } - if (unlikely(!found)) - return ERR_PTR(-EIO); - - list_for_each_entry_safe(c, tmp, &i->channel_list, list) { - if (!strcmp(kobject_name(&c->kobj), mdev_ch)) { - found++; - break; - } - } - if (unlikely(found < 2)) - return ERR_PTR(-EIO); - return c; -} - -/** - * add_link_store - store() function for add_link attribute - * @aim_obj: pointer to AIM object - * @attr: its attributes - * @buf: buffer - * @len: buffer length - * - * This parses the string given by buf and splits it into - * three substrings. Note: third substring is optional. In case a cdev - * AIM is loaded the optional 3rd substring will make up the name of - * device node in the /dev directory. If omitted, the device node will - * inherit the channel's name within sysfs. - * - * Searches for a pair of device and channel and probes the AIM - * - * Example: - * (1) echo "mdev0:ch6:my_rxchannel" >add_link - * (2) echo "mdev1:ep81" >add_link - * - * (1) would create the device node /dev/my_rxchannel - * (2) would create the device node /dev/mdev1-ep81 - */ -static ssize_t add_link_store(struct most_aim_obj *aim_obj, - struct most_aim_attribute *attr, - const char *buf, - size_t len) -{ - struct most_c_obj *c; - struct most_aim **aim_ptr; - char buffer[STRING_SIZE]; - char *mdev; - char *mdev_ch; - char *mdev_devnod; - char devnod_buf[STRING_SIZE]; - int ret; - size_t max_len = min_t(size_t, len + 1, STRING_SIZE); - - strlcpy(buffer, buf, max_len); - - ret = split_string(buffer, &mdev, &mdev_ch, &mdev_devnod); - if (ret) - return ret; - - if (!mdev_devnod || *mdev_devnod == 0) { - snprintf(devnod_buf, sizeof(devnod_buf), "%s-%s", mdev, - mdev_ch); - mdev_devnod = devnod_buf; - } - - c = get_channel_by_name(mdev, mdev_ch); - if (IS_ERR(c)) - return -ENODEV; - - if (!c->aim0.ptr) - aim_ptr = &c->aim0.ptr; - else if (!c->aim1.ptr) - aim_ptr = &c->aim1.ptr; - else - return -ENOSPC; - - *aim_ptr = aim_obj->driver; - ret = aim_obj->driver->probe_channel(c->iface, c->channel_id, - &c->cfg, &c->kobj, mdev_devnod); - if (ret) { - *aim_ptr = NULL; - return ret; - } - - return len; -} - -/** - * remove_link_store - store function for remove_link attribute - * @aim_obj: pointer to AIM object - * @attr: its attributes - * @buf: buffer - * @len: buffer length - * - * Example: - * echo "mdev0:ep81" >remove_link - */ -static ssize_t remove_link_store(struct most_aim_obj *aim_obj, - struct most_aim_attribute *attr, - const char *buf, - size_t len) -{ - struct most_c_obj *c; - char buffer[STRING_SIZE]; - char *mdev; - char *mdev_ch; - int ret; - size_t max_len = min_t(size_t, len + 1, STRING_SIZE); - - strlcpy(buffer, buf, max_len); - ret = split_string(buffer, &mdev, &mdev_ch, NULL); - if (ret) - return ret; - - c = get_channel_by_name(mdev, mdev_ch); - if (IS_ERR(c)) - return -ENODEV; - - if (aim_obj->driver->disconnect_channel(c->iface, c->channel_id)) - return -EIO; - if (c->aim0.ptr == aim_obj->driver) - c->aim0.ptr = NULL; - if (c->aim1.ptr == aim_obj->driver) - c->aim1.ptr = NULL; - return len; -} - -static struct most_aim_attribute most_aim_attrs[] = { - __ATTR_RO(links), - __ATTR_WO(add_link), - __ATTR_WO(remove_link), -}; - -static struct attribute *most_aim_def_attrs[] = { - &most_aim_attrs[0].attr, - &most_aim_attrs[1].attr, - &most_aim_attrs[2].attr, - NULL, -}; - -static struct kobj_type most_aim_ktype = { - .sysfs_ops = &most_aim_sysfs_ops, - .release = most_aim_release, - .default_attrs = most_aim_def_attrs, -}; - -static struct kset *most_aim_kset; - -/** - * create_most_aim_obj - creates an AIM object - * @name: name of the AIM - * - * This creates an AIM object assigns the proper kset and registers - * it with sysfs. - * Returns a pointer to the object or NULL if something went wrong. - */ -static struct most_aim_obj *create_most_aim_obj(const char *name) -{ - struct most_aim_obj *most_aim; - int retval; - - most_aim = kzalloc(sizeof(*most_aim), GFP_KERNEL); - if (!most_aim) - return NULL; - most_aim->kobj.kset = most_aim_kset; - retval = kobject_init_and_add(&most_aim->kobj, &most_aim_ktype, - NULL, "%s", name); - if (retval) { - kobject_put(&most_aim->kobj); - return NULL; - } - kobject_uevent(&most_aim->kobj, KOBJ_ADD); - return most_aim; -} - -/** - * destroy_most_aim_obj - AIM release function - * @p: pointer to AIM object - * - * This decrements the reference counter of the AIM object. If the - * reference count turns zero, its release function will be called. - */ -static void destroy_most_aim_obj(struct most_aim_obj *p) -{ - kobject_put(&p->kobj); -} - -/* ___ ___ - * ___C O R E___ - */ - -/** - * Instantiation of the MOST bus - */ -static struct bus_type most_bus = { - .name = "most", -}; - -/** - * Instantiation of the core driver - */ -static struct device_driver mostcore = { - .name = "mostcore", - .bus = &most_bus, -}; - -static inline void trash_mbo(struct mbo *mbo) -{ - unsigned long flags; - struct most_c_obj *c = mbo->context; - - spin_lock_irqsave(&c->fifo_lock, flags); - list_add(&mbo->list, &c->trash_fifo); - spin_unlock_irqrestore(&c->fifo_lock, flags); -} - -static bool hdm_mbo_ready(struct most_c_obj *c) -{ - bool empty; - - if (c->enqueue_halt) - return false; - - spin_lock_irq(&c->fifo_lock); - empty = list_empty(&c->halt_fifo); - spin_unlock_irq(&c->fifo_lock); - - return !empty; -} - -static void nq_hdm_mbo(struct mbo *mbo) -{ - unsigned long flags; - struct most_c_obj *c = mbo->context; - - spin_lock_irqsave(&c->fifo_lock, flags); - list_add_tail(&mbo->list, &c->halt_fifo); - spin_unlock_irqrestore(&c->fifo_lock, flags); - wake_up_interruptible(&c->hdm_fifo_wq); -} - -static int hdm_enqueue_thread(void *data) -{ - struct most_c_obj *c = data; - struct mbo *mbo; - int ret; - typeof(c->iface->enqueue) enqueue = c->iface->enqueue; - - while (likely(!kthread_should_stop())) { - wait_event_interruptible(c->hdm_fifo_wq, - hdm_mbo_ready(c) || - kthread_should_stop()); - - mutex_lock(&c->nq_mutex); - spin_lock_irq(&c->fifo_lock); - if (unlikely(c->enqueue_halt || list_empty(&c->halt_fifo))) { - spin_unlock_irq(&c->fifo_lock); - mutex_unlock(&c->nq_mutex); - continue; - } - - mbo = list_pop_mbo(&c->halt_fifo); - spin_unlock_irq(&c->fifo_lock); - - if (c->cfg.direction == MOST_CH_RX) - mbo->buffer_length = c->cfg.buffer_size; - - ret = enqueue(mbo->ifp, mbo->hdm_channel_id, mbo); - mutex_unlock(&c->nq_mutex); - - if (unlikely(ret)) { - pr_err("hdm enqueue failed\n"); - nq_hdm_mbo(mbo); - c->hdm_enqueue_task = NULL; - return 0; - } - } - - return 0; -} - -static int run_enqueue_thread(struct most_c_obj *c, int channel_id) -{ - struct task_struct *task = - kthread_run(hdm_enqueue_thread, c, "hdm_fifo_%d", - channel_id); - - if (IS_ERR(task)) - return PTR_ERR(task); - - c->hdm_enqueue_task = task; - return 0; -} - -/** - * arm_mbo - recycle MBO for further usage - * @mbo: buffer object - * - * This puts an MBO back to the list to have it ready for up coming - * tx transactions. - * - * In case the MBO belongs to a channel that recently has been - * poisoned, the MBO is scheduled to be trashed. - * Calls the completion handler of an attached AIM. - */ -static void arm_mbo(struct mbo *mbo) -{ - unsigned long flags; - struct most_c_obj *c; - - BUG_ON((!mbo) || (!mbo->context)); - c = mbo->context; - - if (c->is_poisoned) { - trash_mbo(mbo); - return; - } - - spin_lock_irqsave(&c->fifo_lock, flags); - ++*mbo->num_buffers_ptr; - list_add_tail(&mbo->list, &c->fifo); - spin_unlock_irqrestore(&c->fifo_lock, flags); - - if (c->aim0.refs && c->aim0.ptr->tx_completion) - c->aim0.ptr->tx_completion(c->iface, c->channel_id); - - if (c->aim1.refs && c->aim1.ptr->tx_completion) - c->aim1.ptr->tx_completion(c->iface, c->channel_id); -} - -/** - * arm_mbo_chain - helper function that arms an MBO chain for the HDM - * @c: pointer to interface channel - * @dir: direction of the channel - * @compl: pointer to completion function - * - * This allocates buffer objects including the containing DMA coherent - * buffer and puts them in the fifo. - * Buffers of Rx channels are put in the kthread fifo, hence immediately - * submitted to the HDM. - * - * Returns the number of allocated and enqueued MBOs. - */ -static int arm_mbo_chain(struct most_c_obj *c, int dir, - void (*compl)(struct mbo *)) -{ - unsigned int i; - int retval; - struct mbo *mbo; - u32 coherent_buf_size = c->cfg.buffer_size + c->cfg.extra_len; - - atomic_set(&c->mbo_nq_level, 0); - - for (i = 0; i < c->cfg.num_buffers; i++) { - mbo = kzalloc(sizeof(*mbo), GFP_KERNEL); - if (!mbo) { - retval = i; - goto _exit; - } - mbo->context = c; - mbo->ifp = c->iface; - mbo->hdm_channel_id = c->channel_id; - mbo->virt_address = dma_alloc_coherent(NULL, - coherent_buf_size, - &mbo->bus_address, - GFP_KERNEL); - if (!mbo->virt_address) { - pr_info("WARN: No DMA coherent buffer.\n"); - retval = i; - goto _error1; - } - mbo->complete = compl; - mbo->num_buffers_ptr = &dummy_num_buffers; - if (dir == MOST_CH_RX) { - nq_hdm_mbo(mbo); - atomic_inc(&c->mbo_nq_level); - } else { - arm_mbo(mbo); - } - } - return i; - -_error1: - kfree(mbo); -_exit: - return retval; -} - -/** - * most_submit_mbo - submits an MBO to fifo - * @mbo: pointer to the MBO - */ -void most_submit_mbo(struct mbo *mbo) -{ - if (WARN_ONCE(!mbo || !mbo->context, - "bad mbo or missing channel reference\n")) - return; - - nq_hdm_mbo(mbo); -} -EXPORT_SYMBOL_GPL(most_submit_mbo); - -/** - * most_write_completion - write completion handler - * @mbo: pointer to MBO - * - * This recycles the MBO for further usage. In case the channel has been - * poisoned, the MBO is scheduled to be trashed. - */ -static void most_write_completion(struct mbo *mbo) -{ - struct most_c_obj *c; - - BUG_ON((!mbo) || (!mbo->context)); - - c = mbo->context; - if (mbo->status == MBO_E_INVAL) - pr_info("WARN: Tx MBO status: invalid\n"); - if (unlikely(c->is_poisoned || (mbo->status == MBO_E_CLOSE))) - trash_mbo(mbo); - else - arm_mbo(mbo); -} - -/** - * get_channel_by_iface - get pointer to channel object - * @iface: pointer to interface instance - * @id: channel ID - * - * This retrieves a pointer to a channel of the given interface and channel ID. - */ -static struct -most_c_obj *get_channel_by_iface(struct most_interface *iface, int id) -{ - struct most_inst_obj *i; - - if (unlikely(!iface)) { - pr_err("Bad interface\n"); - return NULL; - } - if (unlikely((id < 0) || (id >= iface->num_channels))) { - pr_err("Channel index (%d) out of range\n", id); - return NULL; - } - i = iface->priv; - if (unlikely(!i)) { - pr_err("interface is not registered\n"); - return NULL; - } - return i->channel[id]; -} - -int channel_has_mbo(struct most_interface *iface, int id, struct most_aim *aim) -{ - struct most_c_obj *c = get_channel_by_iface(iface, id); - unsigned long flags; - int empty; - - if (unlikely(!c)) - return -EINVAL; - - if (c->aim0.refs && c->aim1.refs && - ((aim == c->aim0.ptr && c->aim0.num_buffers <= 0) || - (aim == c->aim1.ptr && c->aim1.num_buffers <= 0))) - return 0; - - spin_lock_irqsave(&c->fifo_lock, flags); - empty = list_empty(&c->fifo); - spin_unlock_irqrestore(&c->fifo_lock, flags); - return !empty; -} -EXPORT_SYMBOL_GPL(channel_has_mbo); - -/** - * most_get_mbo - get pointer to an MBO of pool - * @iface: pointer to interface instance - * @id: channel ID - * - * This attempts to get a free buffer out of the channel fifo. - * Returns a pointer to MBO on success or NULL otherwise. - */ -struct mbo *most_get_mbo(struct most_interface *iface, int id, - struct most_aim *aim) -{ - struct mbo *mbo; - struct most_c_obj *c; - unsigned long flags; - int *num_buffers_ptr; - - c = get_channel_by_iface(iface, id); - if (unlikely(!c)) - return NULL; - - if (c->aim0.refs && c->aim1.refs && - ((aim == c->aim0.ptr && c->aim0.num_buffers <= 0) || - (aim == c->aim1.ptr && c->aim1.num_buffers <= 0))) - return NULL; - - if (aim == c->aim0.ptr) - num_buffers_ptr = &c->aim0.num_buffers; - else if (aim == c->aim1.ptr) - num_buffers_ptr = &c->aim1.num_buffers; - else - num_buffers_ptr = &dummy_num_buffers; - - spin_lock_irqsave(&c->fifo_lock, flags); - if (list_empty(&c->fifo)) { - spin_unlock_irqrestore(&c->fifo_lock, flags); - return NULL; - } - mbo = list_pop_mbo(&c->fifo); - --*num_buffers_ptr; - spin_unlock_irqrestore(&c->fifo_lock, flags); - - mbo->num_buffers_ptr = num_buffers_ptr; - mbo->buffer_length = c->cfg.buffer_size; - return mbo; -} -EXPORT_SYMBOL_GPL(most_get_mbo); - -/** - * most_put_mbo - return buffer to pool - * @mbo: buffer object - */ -void most_put_mbo(struct mbo *mbo) -{ - struct most_c_obj *c = mbo->context; - - if (c->cfg.direction == MOST_CH_TX) { - arm_mbo(mbo); - return; - } - nq_hdm_mbo(mbo); - atomic_inc(&c->mbo_nq_level); -} -EXPORT_SYMBOL_GPL(most_put_mbo); - -/** - * most_read_completion - read completion handler - * @mbo: pointer to MBO - * - * This function is called by the HDM when data has been received from the - * hardware and copied to the buffer of the MBO. - * - * In case the channel has been poisoned it puts the buffer in the trash queue. - * Otherwise, it passes the buffer to an AIM for further processing. - */ -static void most_read_completion(struct mbo *mbo) -{ - struct most_c_obj *c = mbo->context; - - if (unlikely(c->is_poisoned || (mbo->status == MBO_E_CLOSE))) { - trash_mbo(mbo); - return; - } - - if (mbo->status == MBO_E_INVAL) { - nq_hdm_mbo(mbo); - atomic_inc(&c->mbo_nq_level); - return; - } - - if (atomic_sub_and_test(1, &c->mbo_nq_level)) - c->is_starving = 1; - - if (c->aim0.refs && c->aim0.ptr->rx_completion && - c->aim0.ptr->rx_completion(mbo) == 0) - return; - - if (c->aim1.refs && c->aim1.ptr->rx_completion && - c->aim1.ptr->rx_completion(mbo) == 0) - return; - - most_put_mbo(mbo); -} - -/** - * most_start_channel - prepares a channel for communication - * @iface: pointer to interface instance - * @id: channel ID - * - * This prepares the channel for usage. Cross-checks whether the - * channel's been properly configured. - * - * Returns 0 on success or error code otherwise. - */ -int most_start_channel(struct most_interface *iface, int id, - struct most_aim *aim) -{ - int num_buffer; - int ret; - struct most_c_obj *c = get_channel_by_iface(iface, id); - - if (unlikely(!c)) - return -EINVAL; - - mutex_lock(&c->start_mutex); - if (c->aim0.refs + c->aim1.refs > 0) - goto out; /* already started by other aim */ - - if (!try_module_get(iface->mod)) { - pr_info("failed to acquire HDM lock\n"); - mutex_unlock(&c->start_mutex); - return -ENOLCK; - } - - c->cfg.extra_len = 0; - if (c->iface->configure(c->iface, c->channel_id, &c->cfg)) { - pr_info("channel configuration failed. Go check settings...\n"); - ret = -EINVAL; - goto error; - } - - init_waitqueue_head(&c->hdm_fifo_wq); - - if (c->cfg.direction == MOST_CH_RX) - num_buffer = arm_mbo_chain(c, c->cfg.direction, - most_read_completion); - else - num_buffer = arm_mbo_chain(c, c->cfg.direction, - most_write_completion); - if (unlikely(!num_buffer)) { - pr_info("failed to allocate memory\n"); - ret = -ENOMEM; - goto error; - } - - ret = run_enqueue_thread(c, id); - if (ret) - goto error; - - c->is_starving = 0; - c->aim0.num_buffers = c->cfg.num_buffers / 2; - c->aim1.num_buffers = c->cfg.num_buffers - c->aim0.num_buffers; - atomic_set(&c->mbo_ref, num_buffer); - -out: - if (aim == c->aim0.ptr) - c->aim0.refs++; - if (aim == c->aim1.ptr) - c->aim1.refs++; - mutex_unlock(&c->start_mutex); - return 0; - -error: - module_put(iface->mod); - mutex_unlock(&c->start_mutex); - return ret; -} -EXPORT_SYMBOL_GPL(most_start_channel); - -/** - * most_stop_channel - stops a running channel - * @iface: pointer to interface instance - * @id: channel ID - */ -int most_stop_channel(struct most_interface *iface, int id, - struct most_aim *aim) -{ - struct most_c_obj *c; - - if (unlikely((!iface) || (id >= iface->num_channels) || (id < 0))) { - pr_err("Bad interface or index out of range\n"); - return -EINVAL; - } - c = get_channel_by_iface(iface, id); - if (unlikely(!c)) - return -EINVAL; - - mutex_lock(&c->start_mutex); - if (c->aim0.refs + c->aim1.refs >= 2) - goto out; - - if (c->hdm_enqueue_task) - kthread_stop(c->hdm_enqueue_task); - c->hdm_enqueue_task = NULL; - - if (iface->mod) - module_put(iface->mod); - - c->is_poisoned = true; - if (c->iface->poison_channel(c->iface, c->channel_id)) { - pr_err("Cannot stop channel %d of mdev %s\n", c->channel_id, - c->iface->description); - mutex_unlock(&c->start_mutex); - return -EAGAIN; - } - flush_trash_fifo(c); - flush_channel_fifos(c); - -#ifdef CMPL_INTERRUPTIBLE - if (wait_for_completion_interruptible(&c->cleanup)) { - pr_info("Interrupted while clean up ch %d\n", c->channel_id); - mutex_unlock(&c->start_mutex); - return -EINTR; - } -#else - wait_for_completion(&c->cleanup); -#endif - c->is_poisoned = false; - -out: - if (aim == c->aim0.ptr) - c->aim0.refs--; - if (aim == c->aim1.ptr) - c->aim1.refs--; - mutex_unlock(&c->start_mutex); - return 0; -} -EXPORT_SYMBOL_GPL(most_stop_channel); - -/** - * most_register_aim - registers an AIM (driver) with the core - * @aim: instance of AIM to be registered - */ -int most_register_aim(struct most_aim *aim) -{ - struct most_aim_obj *aim_obj; - - if (!aim) { - pr_err("Bad driver\n"); - return -EINVAL; - } - aim_obj = create_most_aim_obj(aim->name); - if (!aim_obj) { - pr_info("failed to alloc driver object\n"); - return -ENOMEM; - } - aim_obj->driver = aim; - aim->context = aim_obj; - pr_info("registered new application interfacing module %s\n", - aim->name); - list_add_tail(&aim_obj->list, &aim_list); - return 0; -} -EXPORT_SYMBOL_GPL(most_register_aim); - -/** - * most_deregister_aim - deregisters an AIM (driver) with the core - * @aim: AIM to be removed - */ -int most_deregister_aim(struct most_aim *aim) -{ - struct most_aim_obj *aim_obj; - struct most_c_obj *c, *tmp; - struct most_inst_obj *i, *i_tmp; - - if (!aim) { - pr_err("Bad driver\n"); - return -EINVAL; - } - - aim_obj = aim->context; - if (!aim_obj) { - pr_info("driver not registered.\n"); - return -EINVAL; - } - list_for_each_entry_safe(i, i_tmp, &instance_list, list) { - list_for_each_entry_safe(c, tmp, &i->channel_list, list) { - if (c->aim0.ptr == aim || c->aim1.ptr == aim) - aim->disconnect_channel( - c->iface, c->channel_id); - if (c->aim0.ptr == aim) - c->aim0.ptr = NULL; - if (c->aim1.ptr == aim) - c->aim1.ptr = NULL; - } - } - list_del(&aim_obj->list); - destroy_most_aim_obj(aim_obj); - pr_info("deregistering application interfacing module %s\n", aim->name); - return 0; -} -EXPORT_SYMBOL_GPL(most_deregister_aim); - -/** - * most_register_interface - registers an interface with core - * @iface: pointer to the instance of the interface description. - * - * Allocates and initializes a new interface instance and all of its channels. - * Returns a pointer to kobject or an error pointer. - */ -struct kobject *most_register_interface(struct most_interface *iface) -{ - unsigned int i; - int id; - char name[STRING_SIZE]; - char channel_name[STRING_SIZE]; - struct most_c_obj *c; - struct most_inst_obj *inst; - - if (!iface || !iface->enqueue || !iface->configure || - !iface->poison_channel || (iface->num_channels > MAX_CHANNELS)) { - pr_err("Bad interface or channel overflow\n"); - return ERR_PTR(-EINVAL); - } - - id = ida_simple_get(&mdev_id, 0, 0, GFP_KERNEL); - if (id < 0) { - pr_info("Failed to alloc mdev ID\n"); - return ERR_PTR(id); - } - snprintf(name, STRING_SIZE, "mdev%d", id); - - inst = create_most_inst_obj(name); - if (!inst) { - pr_info("Failed to allocate interface instance\n"); - ida_simple_remove(&mdev_id, id); - return ERR_PTR(-ENOMEM); - } - - iface->priv = inst; - INIT_LIST_HEAD(&inst->channel_list); - inst->iface = iface; - inst->dev_id = id; - list_add_tail(&inst->list, &instance_list); - - for (i = 0; i < iface->num_channels; i++) { - const char *name_suffix = iface->channel_vector[i].name_suffix; - - if (!name_suffix) - snprintf(channel_name, STRING_SIZE, "ch%d", i); - else - snprintf(channel_name, STRING_SIZE, "%s", name_suffix); - - /* this increments the reference count of this instance */ - c = create_most_c_obj(channel_name, &inst->kobj); - if (!c) - goto free_instance; - inst->channel[i] = c; - c->is_starving = 0; - c->iface = iface; - c->inst = inst; - c->channel_id = i; - c->keep_mbo = false; - c->enqueue_halt = false; - c->is_poisoned = false; - c->cfg.direction = 0; - c->cfg.data_type = 0; - c->cfg.num_buffers = 0; - c->cfg.buffer_size = 0; - c->cfg.subbuffer_size = 0; - c->cfg.packets_per_xact = 0; - spin_lock_init(&c->fifo_lock); - INIT_LIST_HEAD(&c->fifo); - INIT_LIST_HEAD(&c->trash_fifo); - INIT_LIST_HEAD(&c->halt_fifo); - init_completion(&c->cleanup); - atomic_set(&c->mbo_ref, 0); - mutex_init(&c->start_mutex); - mutex_init(&c->nq_mutex); - list_add_tail(&c->list, &inst->channel_list); - } - pr_info("registered new MOST device mdev%d (%s)\n", - inst->dev_id, iface->description); - return &inst->kobj; - -free_instance: - pr_info("Failed allocate channel(s)\n"); - list_del(&inst->list); - ida_simple_remove(&mdev_id, id); - destroy_most_inst_obj(inst); - return ERR_PTR(-ENOMEM); -} -EXPORT_SYMBOL_GPL(most_register_interface); - -/** - * most_deregister_interface - deregisters an interface with core - * @iface: pointer to the interface instance description. - * - * Before removing an interface instance from the list, all running - * channels are stopped and poisoned. - */ -void most_deregister_interface(struct most_interface *iface) -{ - struct most_inst_obj *i = iface->priv; - struct most_c_obj *c; - - if (unlikely(!i)) { - pr_info("Bad Interface\n"); - return; - } - pr_info("deregistering MOST device %s (%s)\n", i->kobj.name, - iface->description); - - list_for_each_entry(c, &i->channel_list, list) { - if (c->aim0.ptr) - c->aim0.ptr->disconnect_channel(c->iface, - c->channel_id); - if (c->aim1.ptr) - c->aim1.ptr->disconnect_channel(c->iface, - c->channel_id); - c->aim0.ptr = NULL; - c->aim1.ptr = NULL; - } - - ida_simple_remove(&mdev_id, i->dev_id); - list_del(&i->list); - destroy_most_inst_obj(i); -} -EXPORT_SYMBOL_GPL(most_deregister_interface); - -/** - * most_stop_enqueue - prevents core from enqueueing MBOs - * @iface: pointer to interface - * @id: channel id - * - * This is called by an HDM that _cannot_ attend to its duties and - * is imminent to get run over by the core. The core is not going to - * enqueue any further packets unless the flagging HDM calls - * most_resume enqueue(). - */ -void most_stop_enqueue(struct most_interface *iface, int id) -{ - struct most_c_obj *c = get_channel_by_iface(iface, id); - - if (!c) - return; - - mutex_lock(&c->nq_mutex); - c->enqueue_halt = true; - mutex_unlock(&c->nq_mutex); -} -EXPORT_SYMBOL_GPL(most_stop_enqueue); - -/** - * most_resume_enqueue - allow core to enqueue MBOs again - * @iface: pointer to interface - * @id: channel id - * - * This clears the enqueue halt flag and enqueues all MBOs currently - * sitting in the wait fifo. - */ -void most_resume_enqueue(struct most_interface *iface, int id) -{ - struct most_c_obj *c = get_channel_by_iface(iface, id); - - if (!c) - return; - - mutex_lock(&c->nq_mutex); - c->enqueue_halt = false; - mutex_unlock(&c->nq_mutex); - - wake_up_interruptible(&c->hdm_fifo_wq); -} -EXPORT_SYMBOL_GPL(most_resume_enqueue); - -static int __init most_init(void) -{ - int err; - - pr_info("init()\n"); - INIT_LIST_HEAD(&instance_list); - INIT_LIST_HEAD(&aim_list); - ida_init(&mdev_id); - - err = bus_register(&most_bus); - if (err) { - pr_info("Cannot register most bus\n"); - return err; - } - - most_class = class_create(THIS_MODULE, "most"); - if (IS_ERR(most_class)) { - pr_info("No udev support.\n"); - err = PTR_ERR(most_class); - goto exit_bus; - } - - err = driver_register(&mostcore); - if (err) { - pr_info("Cannot register core driver\n"); - goto exit_class; - } - - core_dev = device_create(most_class, NULL, 0, NULL, "mostcore"); - if (IS_ERR(core_dev)) { - err = PTR_ERR(core_dev); - goto exit_driver; - } - - most_aim_kset = kset_create_and_add("aims", NULL, &core_dev->kobj); - if (!most_aim_kset) { - err = -ENOMEM; - goto exit_class_container; - } - - most_inst_kset = kset_create_and_add("devices", NULL, &core_dev->kobj); - if (!most_inst_kset) { - err = -ENOMEM; - goto exit_driver_kset; - } - - return 0; - -exit_driver_kset: - kset_unregister(most_aim_kset); -exit_class_container: - device_destroy(most_class, 0); -exit_driver: - driver_unregister(&mostcore); -exit_class: - class_destroy(most_class); -exit_bus: - bus_unregister(&most_bus); - return err; -} - -static void __exit most_exit(void) -{ - struct most_inst_obj *i, *i_tmp; - struct most_aim_obj *d, *d_tmp; - - pr_info("exit core module\n"); - list_for_each_entry_safe(d, d_tmp, &aim_list, list) { - destroy_most_aim_obj(d); - } - - list_for_each_entry_safe(i, i_tmp, &instance_list, list) { - list_del(&i->list); - destroy_most_inst_obj(i); - } - kset_unregister(most_inst_kset); - kset_unregister(most_aim_kset); - device_destroy(most_class, 0); - driver_unregister(&mostcore); - class_destroy(most_class); - bus_unregister(&most_bus); - ida_destroy(&mdev_id); -} - -module_init(most_init); -module_exit(most_exit); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Gromm <christian.gromm@microchip.com>"); -MODULE_DESCRIPTION("Core module of stacked MOST Linux driver"); diff --git a/drivers/staging/most/aim-network/Kconfig b/drivers/staging/most/net/Kconfig index 4c66b24cf73c..795330ba94ef 100644 --- a/drivers/staging/most/aim-network/Kconfig +++ b/drivers/staging/most/net/Kconfig @@ -2,12 +2,12 @@ # MOST Networking configuration # -config AIM_NETWORK - tristate "Networking AIM" +config MOST_NET + tristate "Net" depends on NET ---help--- Say Y here if you want to commumicate via a networking device. To compile this driver as a module, choose M here: the - module will be called aim_network. + module will be called most_net. diff --git a/drivers/staging/most/net/Makefile b/drivers/staging/most/net/Makefile new file mode 100644 index 000000000000..54500aa77be8 --- /dev/null +++ b/drivers/staging/most/net/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_NET) += most_net.o + +most_net-objs := net.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/aim-network/networking.c b/drivers/staging/most/net/net.c index 936f013c350e..30d816b7e165 100644 --- a/drivers/staging/most/aim-network/networking.c +++ b/drivers/staging/most/net/net.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * Networking AIM - Networking Application Interface Module for MostCore + * net.c - Networking component for Mostcore * * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -21,7 +15,7 @@ #include <linux/list.h> #include <linux/wait.h> #include <linux/kobject.h> -#include "mostcore.h" +#include "most/core.h" #define MEP_HDR_LEN 8 #define MDP_HDR_LEN 16 @@ -52,10 +46,12 @@ ((len) > MEP_HDR_LEN && \ EXTRACT_BIT_SET(PMS_FIFONO, (buf)[3]) == PMS_FIFONO_MEP) -#define PMS_IS_MAMAC(buf, len) \ - ((len) > MDP_HDR_LEN && \ - EXTRACT_BIT_SET(PMS_FIFONO, (buf)[3]) == PMS_FIFONO_MDP && \ - EXTRACT_BIT_SET(PMS_TELID, (buf)[14]) == PMS_TELID_UNSEGM_MAMAC) +static inline bool pms_is_mamac(char *buf, u32 len) +{ + return (len > MDP_HDR_LEN && + EXTRACT_BIT_SET(PMS_FIFONO, buf[3]) == PMS_FIFONO_MDP && + EXTRACT_BIT_SET(PMS_TELID, buf[14]) == PMS_TELID_UNSEGM_MAMAC); +} struct net_dev_channel { bool linked; @@ -74,7 +70,7 @@ struct net_dev_context { static struct list_head net_devices = LIST_HEAD_INIT(net_devices); static struct mutex probe_disc_mt; /* ch->linked = true, most_nd_open */ static struct spinlock list_lock; /* list_head, ch->linked = false, dev_hold */ -static struct most_aim aim; +static struct core_component comp; static int skb_to_mamac(const struct sk_buff *skb, struct mbo *mbo) { @@ -184,15 +180,15 @@ static int most_nd_open(struct net_device *dev) mutex_lock(&probe_disc_mt); - if (most_start_channel(nd->iface, nd->rx.ch_id, &aim)) { + if (most_start_channel(nd->iface, nd->rx.ch_id, &comp)) { netdev_err(dev, "most_start_channel() failed\n"); ret = -EBUSY; goto unlock; } - if (most_start_channel(nd->iface, nd->tx.ch_id, &aim)) { + if (most_start_channel(nd->iface, nd->tx.ch_id, &comp)) { netdev_err(dev, "most_start_channel() failed\n"); - most_stop_channel(nd->iface, nd->rx.ch_id, &aim); + most_stop_channel(nd->iface, nd->rx.ch_id, &comp); ret = -EBUSY; goto unlock; } @@ -218,8 +214,8 @@ static int most_nd_stop(struct net_device *dev) netif_stop_queue(dev); if (nd->iface->request_netinfo) nd->iface->request_netinfo(nd->iface, nd->tx.ch_id, NULL); - most_stop_channel(nd->iface, nd->rx.ch_id, &aim); - most_stop_channel(nd->iface, nd->tx.ch_id, &aim); + most_stop_channel(nd->iface, nd->rx.ch_id, &comp); + most_stop_channel(nd->iface, nd->tx.ch_id, &comp); return 0; } @@ -231,7 +227,7 @@ static netdev_tx_t most_nd_start_xmit(struct sk_buff *skb, struct mbo *mbo; int ret; - mbo = most_get_mbo(nd->iface, nd->tx.ch_id, &aim); + mbo = most_get_mbo(nd->iface, nd->tx.ch_id, &comp); if (!mbo) { netif_stop_queue(dev); @@ -296,9 +292,8 @@ static struct net_dev_context *get_net_dev_hold(struct most_interface *iface) return nd; } -static int aim_probe_channel(struct most_interface *iface, int channel_idx, - struct most_channel_config *ccfg, - struct kobject *parent, char *name) +static int comp_probe_channel(struct most_interface *iface, int channel_idx, + struct most_channel_config *ccfg, char *name) { struct net_dev_context *nd; struct net_dev_channel *ch; @@ -353,8 +348,8 @@ unlock: return ret; } -static int aim_disconnect_channel(struct most_interface *iface, - int channel_idx) +static int comp_disconnect_channel(struct most_interface *iface, + int channel_idx) { struct net_dev_context *nd; struct net_dev_channel *ch; @@ -400,8 +395,8 @@ unlock: return ret; } -static int aim_resume_tx_channel(struct most_interface *iface, - int channel_idx) +static int comp_resume_tx_channel(struct most_interface *iface, + int channel_idx) { struct net_dev_context *nd; @@ -419,7 +414,7 @@ put_nd: return 0; } -static int aim_rx_data(struct mbo *mbo) +static int comp_rx_data(struct mbo *mbo) { const u32 zero = 0; struct net_dev_context *nd; @@ -442,7 +437,7 @@ static int aim_rx_data(struct mbo *mbo) dev = nd->dev; if (nd->is_mamac) { - if (!PMS_IS_MAMAC(buf, len)) { + if (!pms_is_mamac(buf, len)) { ret = -EIO; goto put_nd; } @@ -501,24 +496,24 @@ put_nd: return ret; } -static struct most_aim aim = { - .name = "networking", - .probe_channel = aim_probe_channel, - .disconnect_channel = aim_disconnect_channel, - .tx_completion = aim_resume_tx_channel, - .rx_completion = aim_rx_data, +static struct core_component comp = { + .name = "net", + .probe_channel = comp_probe_channel, + .disconnect_channel = comp_disconnect_channel, + .tx_completion = comp_resume_tx_channel, + .rx_completion = comp_rx_data, }; static int __init most_net_init(void) { spin_lock_init(&list_lock); mutex_init(&probe_disc_mt); - return most_register_aim(&aim); + return most_register_component(&comp); } static void __exit most_net_exit(void) { - most_deregister_aim(&aim); + most_deregister_component(&comp); } /** @@ -564,4 +559,4 @@ module_init(most_net_init); module_exit(most_net_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Andrey Shvetsov <andrey.shvetsov@k2l.de>"); -MODULE_DESCRIPTION("Networking Application Interface Module for MostCore"); +MODULE_DESCRIPTION("Networking Component Module for Mostcore"); diff --git a/drivers/staging/most/aim-sound/Kconfig b/drivers/staging/most/sound/Kconfig index 3194c219ff14..115262a58a42 100644 --- a/drivers/staging/most/aim-sound/Kconfig +++ b/drivers/staging/most/sound/Kconfig @@ -2,12 +2,12 @@ # MOST ALSA configuration # -config AIM_SOUND - tristate "ALSA AIM" +config MOST_SOUND + tristate "Sound" depends on SND select SND_PCM ---help--- Say Y here if you want to commumicate via ALSA/sound devices. To compile this driver as a module, choose M here: the - module will be called aim_sound. + module will be called most_sound. diff --git a/drivers/staging/most/sound/Makefile b/drivers/staging/most/sound/Makefile new file mode 100644 index 000000000000..eee8774e38cb --- /dev/null +++ b/drivers/staging/most/sound/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_SOUND) += most_sound.o + +most_sound-objs := sound.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/aim-sound/sound.c b/drivers/staging/most/sound/sound.c index ea1366a44008..83cec21c85b8 100644 --- a/drivers/staging/most/aim-sound/sound.c +++ b/drivers/staging/most/sound/sound.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * sound.c - Audio Application Interface Module for Mostcore + * sound.c - Sound component for Mostcore * * Copyright (C) 2015 Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -22,12 +16,12 @@ #include <sound/pcm_params.h> #include <linux/sched.h> #include <linux/kthread.h> -#include <mostcore.h> +#include <most/core.h> #define DRIVER_NAME "sound" static struct list_head dev_list; -static struct most_aim audio_aim; +static struct core_component comp; /** * struct channel - private structure to keep channel specific data @@ -240,7 +234,7 @@ static int playback_thread(void *data) kthread_should_stop() || (channel->is_stream_running && (mbo = most_get_mbo(channel->iface, channel->id, - &audio_aim)))); + &comp)))); if (!mbo) continue; @@ -283,7 +277,7 @@ static int pcm_open(struct snd_pcm_substream *substream) } } - if (most_start_channel(channel->iface, channel->id, &audio_aim)) { + if (most_start_channel(channel->iface, channel->id, &comp)) { pr_err("most_start_channel() failed!\n"); if (cfg->direction == MOST_CH_TX) kthread_stop(channel->playback_task); @@ -310,7 +304,7 @@ static int pcm_close(struct snd_pcm_substream *substream) if (channel->cfg->direction == MOST_CH_TX) kthread_stop(channel->playback_task); - most_stop_channel(channel->iface, channel->id, &audio_aim); + most_stop_channel(channel->iface, channel->id, &comp); return 0; } @@ -545,7 +539,6 @@ error: * @iface: pointer to interface instance * @channel_id: channel index/ID * @cfg: pointer to actual channel configuration - * @parent: pointer to kobject (needed for sysfs hook-up) * @arg_list: string that provides the name of the device to be created in /dev * plus the desired audio resolution * @@ -555,7 +548,7 @@ error: */ static int audio_probe_channel(struct most_interface *iface, int channel_id, struct most_channel_config *cfg, - struct kobject *parent, char *arg_list) + char *arg_list) { struct channel *channel; struct snd_card *card; @@ -724,9 +717,9 @@ static int audio_tx_completion(struct most_interface *iface, int channel_id) } /** - * Initialization of the struct most_aim + * Initialization of the struct core_component */ -static struct most_aim audio_aim = { +static struct core_component comp = { .name = DRIVER_NAME, .probe_channel = audio_probe_channel, .disconnect_channel = audio_disconnect_channel, @@ -740,7 +733,7 @@ static int __init audio_init(void) INIT_LIST_HEAD(&dev_list); - return most_register_aim(&audio_aim); + return most_register_component(&comp); } static void __exit audio_exit(void) @@ -754,7 +747,7 @@ static void __exit audio_exit(void) snd_card_free(channel->card); } - most_deregister_aim(&audio_aim); + most_deregister_component(&comp); } module_init(audio_init); @@ -762,4 +755,4 @@ module_exit(audio_exit); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Christian Gromm <christian.gromm@microchip.com>"); -MODULE_DESCRIPTION("Audio Application Interface Module for MostCore"); +MODULE_DESCRIPTION("Sound Component Module for Mostcore"); diff --git a/drivers/staging/most/hdm-usb/Kconfig b/drivers/staging/most/usb/Kconfig index 487f1f34776c..ebbdb573a9a6 100644 --- a/drivers/staging/most/hdm-usb/Kconfig +++ b/drivers/staging/most/usb/Kconfig @@ -2,13 +2,12 @@ # MOST USB configuration # -config HDM_USB - tristate "USB HDM" +config MOST_USB + tristate "USB" depends on USB && NET - ---help--- Say Y here if you want to connect via USB to network tranceiver. This device driver depends on the networking AIM. To compile this driver as a module, choose M here: the - module will be called hdm_usb. + module will be called most_usb. diff --git a/drivers/staging/most/usb/Makefile b/drivers/staging/most/usb/Makefile new file mode 100644 index 000000000000..18d28cba4fbf --- /dev/null +++ b/drivers/staging/most/usb/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_USB) += most_usb.o + +most_usb-objs := usb.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/hdm-usb/hdm_usb.c b/drivers/staging/most/usb/usb.c index 667dacac81f0..31f184cfcd69 100644 --- a/drivers/staging/most/hdm-usb/hdm_usb.c +++ b/drivers/staging/most/usb/usb.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * hdm_usb.c - Hardware dependent module for USB + * usb.c - Hardware dependent module for USB * * Copyright (C) 2013-2015 Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -29,7 +23,7 @@ #include <linux/dma-mapping.h> #include <linux/etherdevice.h> #include <linux/uaccess.h> -#include "mostcore.h" +#include "most/core.h" #define USB_MTU 512 #define NO_ISOCHRONOUS_URB 0 @@ -70,12 +64,12 @@ * @reg_addr: register address for arbitrary DCI access */ struct most_dci_obj { - struct kobject kobj; + struct device dev; struct usb_device *usb_device; u16 reg_addr; }; -#define to_dci_obj(p) container_of(p, struct most_dci_obj, kobj) +#define to_dci_obj(p) container_of(p, struct most_dci_obj, dev) struct most_dev; @@ -90,7 +84,6 @@ struct clear_hold_work { /** * struct most_dev - holds all usb interface specific stuff - * @parent: parent object in sysfs * @usb_device: pointer to usb device * @iface: hardware interface * @cap: channel capabilities @@ -108,7 +101,6 @@ struct clear_hold_work { * @poll_work_obj: work for polling link status */ struct most_dev { - struct kobject *parent; struct usb_device *usb_device; struct most_interface iface; struct most_channel_capability *cap; @@ -125,8 +117,8 @@ struct most_dev { struct mutex io_mutex; struct timer_list link_stat_timer; struct work_struct poll_work_obj; - void (*on_netinfo)(struct most_interface *, unsigned char, - unsigned char *); + void (*on_netinfo)(struct most_interface *most_iface, + unsigned char link_state, unsigned char *addrs); }; #define to_mdev(d) container_of(d, struct most_dev, iface) @@ -817,6 +809,21 @@ static void wq_clear_halt(struct work_struct *wq_obj) if (usb_clear_halt(mdev->usb_device, pipe)) dev_warn(&mdev->usb_device->dev, "Failed to reset endpoint.\n"); + /* If the functional Stall condition has been set on an + * asynchronous rx channel, we need to clear the tx channel + * too, since the hardware runs its clean-up sequence on both + * channels, as they are physically one on the network. + * + * The USB interface that exposes the asynchronous channels + * contains always two endpoints, and two only. + */ + if (mdev->conf[channel].data_type == MOST_CH_ASYNC && + mdev->conf[channel].direction == MOST_CH_RX) { + int peer = 1 - channel; + int snd_pipe = usb_sndbulkpipe(mdev->usb_device, + mdev->ep_address[peer]); + usb_clear_halt(mdev->usb_device, snd_pipe); + } mdev->is_channel_healthy[channel] = true; most_resume_enqueue(&mdev->iface, channel); mutex_unlock(&mdev->io_mutex); @@ -840,94 +847,6 @@ static const struct usb_device_id usbid[] = { { } /* Terminating entry */ }; -#define MOST_DCI_RO_ATTR(_name) \ - struct most_dci_attribute most_dci_attr_##_name = \ - __ATTR(_name, 0444, show_value, NULL) - -#define MOST_DCI_ATTR(_name) \ - struct most_dci_attribute most_dci_attr_##_name = \ - __ATTR(_name, 0644, show_value, store_value) - -#define MOST_DCI_WO_ATTR(_name) \ - struct most_dci_attribute most_dci_attr_##_name = \ - __ATTR(_name, 0200, NULL, store_value) - -/** - * struct most_dci_attribute - to access the attributes of a dci object - * @attr: attributes of a dci object - * @show: pointer to the show function - * @store: pointer to the store function - */ -struct most_dci_attribute { - struct attribute attr; - ssize_t (*show)(struct most_dci_obj *d, - struct most_dci_attribute *attr, - char *buf); - ssize_t (*store)(struct most_dci_obj *d, - struct most_dci_attribute *attr, - const char *buf, - size_t count); -}; - -#define to_dci_attr(a) container_of(a, struct most_dci_attribute, attr) - -/** - * dci_attr_show - show function for dci object - * @kobj: pointer to kobject - * @attr: pointer to attribute struct - * @buf: buffer - */ -static ssize_t dci_attr_show(struct kobject *kobj, struct attribute *attr, - char *buf) -{ - struct most_dci_attribute *dci_attr = to_dci_attr(attr); - struct most_dci_obj *dci_obj = to_dci_obj(kobj); - - if (!dci_attr->show) - return -EIO; - - return dci_attr->show(dci_obj, dci_attr, buf); -} - -/** - * dci_attr_store - store function for dci object - * @kobj: pointer to kobject - * @attr: pointer to attribute struct - * @buf: buffer - * @len: length of buffer - */ -static ssize_t dci_attr_store(struct kobject *kobj, - struct attribute *attr, - const char *buf, - size_t len) -{ - struct most_dci_attribute *dci_attr = to_dci_attr(attr); - struct most_dci_obj *dci_obj = to_dci_obj(kobj); - - if (!dci_attr->store) - return -EIO; - - return dci_attr->store(dci_obj, dci_attr, buf, len); -} - -static const struct sysfs_ops most_dci_sysfs_ops = { - .show = dci_attr_show, - .store = dci_attr_store, -}; - -/** - * most_dci_release - release function for dci object - * @kobj: pointer to kobject - * - * This frees the memory allocated for the dci object - */ -static void most_dci_release(struct kobject *kobj) -{ - struct most_dci_obj *dci_obj = to_dci_obj(kobj); - - kfree(dci_obj); -} - struct regs { const char *name; u16 reg; @@ -968,10 +887,11 @@ static int get_stat_reg_addr(const struct regs *regs, int size, #define get_static_reg_addr(regs, name, reg_addr) \ get_stat_reg_addr(regs, ARRAY_SIZE(regs), name, reg_addr) -static ssize_t show_value(struct most_dci_obj *dci_obj, - struct most_dci_attribute *attr, char *buf) +static ssize_t value_show(struct device *dev, struct device_attribute *attr, + char *buf) { const char *name = attr->attr.name; + struct most_dci_obj *dci_obj = to_dci_obj(dev); u16 val; u16 reg_addr; int err; @@ -992,13 +912,13 @@ static ssize_t show_value(struct most_dci_obj *dci_obj, return snprintf(buf, PAGE_SIZE, "%04x\n", val); } -static ssize_t store_value(struct most_dci_obj *dci_obj, - struct most_dci_attribute *attr, +static ssize_t value_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { u16 val; u16 reg_addr; const char *name = attr->attr.name; + struct most_dci_obj *dci_obj = to_dci_obj(dev); struct usb_device *usb_dev = dci_obj->usb_device; int err = kstrtou16(buf, 16, &val); @@ -1025,86 +945,49 @@ static ssize_t store_value(struct most_dci_obj *dci_obj, return count; } -static MOST_DCI_RO_ATTR(ni_state); -static MOST_DCI_RO_ATTR(packet_bandwidth); -static MOST_DCI_RO_ATTR(node_address); -static MOST_DCI_RO_ATTR(node_position); -static MOST_DCI_WO_ATTR(sync_ep); -static MOST_DCI_ATTR(mep_filter); -static MOST_DCI_ATTR(mep_hash0); -static MOST_DCI_ATTR(mep_hash1); -static MOST_DCI_ATTR(mep_hash2); -static MOST_DCI_ATTR(mep_hash3); -static MOST_DCI_ATTR(mep_eui48_hi); -static MOST_DCI_ATTR(mep_eui48_mi); -static MOST_DCI_ATTR(mep_eui48_lo); -static MOST_DCI_ATTR(arb_address); -static MOST_DCI_ATTR(arb_value); - -/** - * most_dci_def_attrs - array of default attribute files of the dci object - */ -static struct attribute *most_dci_def_attrs[] = { - &most_dci_attr_ni_state.attr, - &most_dci_attr_packet_bandwidth.attr, - &most_dci_attr_node_address.attr, - &most_dci_attr_node_position.attr, - &most_dci_attr_sync_ep.attr, - &most_dci_attr_mep_filter.attr, - &most_dci_attr_mep_hash0.attr, - &most_dci_attr_mep_hash1.attr, - &most_dci_attr_mep_hash2.attr, - &most_dci_attr_mep_hash3.attr, - &most_dci_attr_mep_eui48_hi.attr, - &most_dci_attr_mep_eui48_mi.attr, - &most_dci_attr_mep_eui48_lo.attr, - &most_dci_attr_arb_address.attr, - &most_dci_attr_arb_value.attr, +static DEVICE_ATTR(ni_state, 0444, value_show, NULL); +static DEVICE_ATTR(packet_bandwidth, 0444, value_show, NULL); +static DEVICE_ATTR(node_address, 0444, value_show, NULL); +static DEVICE_ATTR(node_position, 0444, value_show, NULL); +static DEVICE_ATTR(sync_ep, 0200, NULL, value_store); +static DEVICE_ATTR(mep_filter, 0644, value_show, value_store); +static DEVICE_ATTR(mep_hash0, 0644, value_show, value_store); +static DEVICE_ATTR(mep_hash1, 0644, value_show, value_store); +static DEVICE_ATTR(mep_hash2, 0644, value_show, value_store); +static DEVICE_ATTR(mep_hash3, 0644, value_show, value_store); +static DEVICE_ATTR(mep_eui48_hi, 0644, value_show, value_store); +static DEVICE_ATTR(mep_eui48_mi, 0644, value_show, value_store); +static DEVICE_ATTR(mep_eui48_lo, 0644, value_show, value_store); +static DEVICE_ATTR(arb_address, 0644, value_show, value_store); +static DEVICE_ATTR(arb_value, 0644, value_show, value_store); + +static struct attribute *dci_attrs[] = { + &dev_attr_ni_state.attr, + &dev_attr_packet_bandwidth.attr, + &dev_attr_node_address.attr, + &dev_attr_node_position.attr, + &dev_attr_sync_ep.attr, + &dev_attr_mep_filter.attr, + &dev_attr_mep_hash0.attr, + &dev_attr_mep_hash1.attr, + &dev_attr_mep_hash2.attr, + &dev_attr_mep_hash3.attr, + &dev_attr_mep_eui48_hi.attr, + &dev_attr_mep_eui48_mi.attr, + &dev_attr_mep_eui48_lo.attr, + &dev_attr_arb_address.attr, + &dev_attr_arb_value.attr, NULL, }; -/** - * DCI ktype - */ -static struct kobj_type most_dci_ktype = { - .sysfs_ops = &most_dci_sysfs_ops, - .release = most_dci_release, - .default_attrs = most_dci_def_attrs, +static struct attribute_group dci_attr_group = { + .attrs = dci_attrs, }; -/** - * create_most_dci_obj - allocates a dci object - * @parent: parent kobject - * - * This creates a dci object and registers it with sysfs. - * Returns a pointer to the object or NULL when something went wrong. - */ -static struct -most_dci_obj *create_most_dci_obj(struct kobject *parent) -{ - struct most_dci_obj *most_dci = kzalloc(sizeof(*most_dci), GFP_KERNEL); - int retval; - - if (!most_dci) - return NULL; - - retval = kobject_init_and_add(&most_dci->kobj, &most_dci_ktype, parent, - "dci"); - if (retval) { - kobject_put(&most_dci->kobj); - return NULL; - } - return most_dci; -} - -/** - * destroy_most_dci_obj - DCI object release function - * @p: pointer to dci object - */ -static void destroy_most_dci_obj(struct most_dci_obj *p) -{ - kobject_put(&p->kobj); -} +static const struct attribute_group *dci_attr_groups[] = { + &dci_attr_group, + NULL, +}; /** * hdm_probe - probe function of USB device driver @@ -1168,8 +1051,6 @@ hdm_probe(struct usb_interface *interface, const struct usb_device_id *id) goto exit_free1; mdev->iface.channel_vector = mdev->cap; - mdev->iface.priv = NULL; - mdev->ep_address = kcalloc(num_endpoints, sizeof(*mdev->ep_address), GFP_KERNEL); if (!mdev->ep_address) @@ -1217,20 +1098,15 @@ hdm_probe(struct usb_interface *interface, const struct usb_device_id *id) usb_dev->config->desc.bConfigurationValue, usb_iface_desc->desc.bInterfaceNumber); - mdev->parent = most_register_interface(&mdev->iface); - if (IS_ERR(mdev->parent)) { - ret = PTR_ERR(mdev->parent); + ret = most_register_interface(&mdev->iface); + if (ret) goto exit_free4; - } mutex_lock(&mdev->io_mutex); if (le16_to_cpu(usb_dev->descriptor.idProduct) == USB_DEV_ID_OS81118 || le16_to_cpu(usb_dev->descriptor.idProduct) == USB_DEV_ID_OS81119 || le16_to_cpu(usb_dev->descriptor.idProduct) == USB_DEV_ID_OS81210) { - /* this increments the reference count of the instance - * object of the core - */ - mdev->dci = create_most_dci_obj(mdev->parent); + mdev->dci = kzalloc(sizeof(*mdev->dci), GFP_KERNEL); if (!mdev->dci) { mutex_unlock(&mdev->io_mutex); most_deregister_interface(&mdev->iface); @@ -1238,12 +1114,21 @@ hdm_probe(struct usb_interface *interface, const struct usb_device_id *id) goto exit_free4; } - kobject_uevent(&mdev->dci->kobj, KOBJ_ADD); + mdev->dci->dev.init_name = "dci"; + mdev->dci->dev.parent = &mdev->iface.dev; + mdev->dci->dev.groups = dci_attr_groups; + if (device_register(&mdev->dci->dev)) { + mutex_unlock(&mdev->io_mutex); + most_deregister_interface(&mdev->iface); + ret = -ENOMEM; + goto exit_free5; + } mdev->dci->usb_device = mdev->usb_device; } mutex_unlock(&mdev->io_mutex); return 0; - +exit_free5: + kfree(mdev->dci); exit_free4: kfree(mdev->busy_urbs); exit_free3: @@ -1283,7 +1168,8 @@ static void hdm_disconnect(struct usb_interface *interface) del_timer_sync(&mdev->link_stat_timer); cancel_work_sync(&mdev->poll_work_obj); - destroy_most_dci_obj(mdev->dci); + device_unregister(&mdev->dci->dev); + kfree(mdev->dci); most_deregister_interface(&mdev->iface); kfree(mdev->busy_urbs); diff --git a/drivers/staging/most/aim-v4l2/Kconfig b/drivers/staging/most/video/Kconfig index d70eaaf0936c..ce6af4f951a6 100644 --- a/drivers/staging/most/aim-v4l2/Kconfig +++ b/drivers/staging/most/video/Kconfig @@ -2,11 +2,11 @@ # MOST V4L2 configuration # -config AIM_V4L2 - tristate "V4L2 AIM" +config MOST_VIDEO + tristate "Video" depends on VIDEO_V4L2 ---help--- Say Y here if you want to commumicate via Video 4 Linux. To compile this driver as a module, choose M here: the - module will be called aim_v4l2.
\ No newline at end of file + module will be called most_video. diff --git a/drivers/staging/most/video/Makefile b/drivers/staging/most/video/Makefile new file mode 100644 index 000000000000..1c8e520e02a2 --- /dev/null +++ b/drivers/staging/most/video/Makefile @@ -0,0 +1,4 @@ +obj-$(CONFIG_MOST_VIDEO) += most_video.o + +most_video-objs := video.o +ccflags-y += -Idrivers/staging/ diff --git a/drivers/staging/most/aim-v4l2/video.c b/drivers/staging/most/video/video.c index 7783bc2dd9f5..ef23e8524b1e 100644 --- a/drivers/staging/most/aim-v4l2/video.c +++ b/drivers/staging/most/video/video.c @@ -1,14 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * V4L2 AIM - V4L2 Application Interface Module for MostCore + * video.c - V4L2 component for Mostcore * * Copyright (C) 2015, Microchip Technology Germany II GmbH & Co. KG - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This file is licensed under GPLv2. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -27,11 +21,11 @@ #include <media/v4l2-ctrls.h> #include <media/v4l2-fh.h> -#include "mostcore.h" +#include "most/core.h" -#define V4L2_AIM_MAX_INPUT 1 +#define V4L2_CMP_MAX_INPUT 1 -static struct most_aim aim_info; +static struct core_component comp; struct most_video_dev { struct most_interface *iface; @@ -52,7 +46,7 @@ struct most_video_dev { wait_queue_head_t wait_data; }; -struct aim_fh { +struct comp_fh { /* must be the first field of this struct! */ struct v4l2_fh fh; struct most_video_dev *mdev; @@ -72,14 +66,14 @@ static inline struct mbo *get_top_mbo(struct most_video_dev *mdev) return list_first_entry(&mdev->pending_mbos, struct mbo, list); } -static int aim_vdev_open(struct file *filp) +static int comp_vdev_open(struct file *filp) { int ret; struct video_device *vdev = video_devdata(filp); struct most_video_dev *mdev = video_drvdata(filp); - struct aim_fh *fh; + struct comp_fh *fh; - v4l2_info(&mdev->v4l2_dev, "aim_vdev_open()\n"); + v4l2_info(&mdev->v4l2_dev, "comp_vdev_open()\n"); switch (vdev->vfl_type) { case VFL_TYPE_GRABBER: @@ -104,7 +98,7 @@ static int aim_vdev_open(struct file *filp) v4l2_fh_add(&fh->fh); - ret = most_start_channel(mdev->iface, mdev->ch_idx, &aim_info); + ret = most_start_channel(mdev->iface, mdev->ch_idx, &comp); if (ret) { v4l2_err(&mdev->v4l2_dev, "most_start_channel() failed\n"); goto err_rm; @@ -122,13 +116,13 @@ err_dec: return ret; } -static int aim_vdev_close(struct file *filp) +static int comp_vdev_close(struct file *filp) { - struct aim_fh *fh = filp->private_data; + struct comp_fh *fh = filp->private_data; struct most_video_dev *mdev = fh->mdev; struct mbo *mbo, *tmp; - v4l2_info(&mdev->v4l2_dev, "aim_vdev_close()\n"); + v4l2_info(&mdev->v4l2_dev, "comp_vdev_close()\n"); /* * We need to put MBOs back before we call most_stop_channel() @@ -148,7 +142,7 @@ static int aim_vdev_close(struct file *filp) spin_lock_irq(&mdev->list_lock); } spin_unlock_irq(&mdev->list_lock); - most_stop_channel(mdev->iface, mdev->ch_idx, &aim_info); + most_stop_channel(mdev->iface, mdev->ch_idx, &comp); mdev->mute = false; v4l2_fh_del(&fh->fh); @@ -159,10 +153,10 @@ static int aim_vdev_close(struct file *filp) return 0; } -static ssize_t aim_vdev_read(struct file *filp, char __user *buf, - size_t count, loff_t *pos) +static ssize_t comp_vdev_read(struct file *filp, char __user *buf, + size_t count, loff_t *pos) { - struct aim_fh *fh = filp->private_data; + struct comp_fh *fh = filp->private_data; struct most_video_dev *mdev = fh->mdev; int ret = 0; @@ -209,9 +203,9 @@ static ssize_t aim_vdev_read(struct file *filp, char __user *buf, return ret; } -static __poll_t aim_vdev_poll(struct file *filp, poll_table *wait) +static __poll_t comp_vdev_poll(struct file *filp, poll_table *wait) { - struct aim_fh *fh = filp->private_data; + struct comp_fh *fh = filp->private_data; struct most_video_dev *mdev = fh->mdev; __poll_t mask = 0; @@ -224,7 +218,7 @@ static __poll_t aim_vdev_poll(struct file *filp, poll_table *wait) return mask; } -static void aim_set_format_struct(struct v4l2_format *f) +static void comp_set_format_struct(struct v4l2_format *f) { f->fmt.pix.width = 8; f->fmt.pix.height = 8; @@ -236,8 +230,8 @@ static void aim_set_format_struct(struct v4l2_format *f) f->fmt.pix.priv = 0; } -static int aim_set_format(struct most_video_dev *mdev, unsigned int cmd, - struct v4l2_format *format) +static int comp_set_format(struct most_video_dev *mdev, unsigned int cmd, + struct v4l2_format *format) { if (format->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG) return -EINVAL; @@ -245,7 +239,7 @@ static int aim_set_format(struct most_video_dev *mdev, unsigned int cmd, if (cmd == VIDIOC_TRY_FMT) return 0; - aim_set_format_struct(format); + comp_set_format_struct(format); return 0; } @@ -253,12 +247,12 @@ static int aim_set_format(struct most_video_dev *mdev, unsigned int cmd, static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; v4l2_info(&mdev->v4l2_dev, "vidioc_querycap()\n"); - strlcpy(cap->driver, "v4l2_most_aim", sizeof(cap->driver)); + strlcpy(cap->driver, "v4l2_component", sizeof(cap->driver)); strlcpy(cap->card, "MOST", sizeof(cap->card)); snprintf(cap->bus_info, sizeof(cap->bus_info), "%s", mdev->iface->description); @@ -273,7 +267,7 @@ static int vidioc_querycap(struct file *file, void *priv, static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; v4l2_info(&mdev->v4l2_dev, "vidioc_enum_fmt_vid_cap() %d\n", f->index); @@ -292,36 +286,36 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; v4l2_info(&mdev->v4l2_dev, "vidioc_g_fmt_vid_cap()\n"); - aim_set_format_struct(f); + comp_set_format_struct(f); return 0; } static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; - return aim_set_format(mdev, VIDIOC_TRY_FMT, f); + return comp_set_format(mdev, VIDIOC_TRY_FMT, f); } static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; - return aim_set_format(mdev, VIDIOC_S_FMT, f); + return comp_set_format(mdev, VIDIOC_S_FMT, f); } static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; v4l2_info(&mdev->v4l2_dev, "vidioc_g_std()\n"); @@ -333,10 +327,10 @@ static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *norm) static int vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *input) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; - if (input->index >= V4L2_AIM_MAX_INPUT) + if (input->index >= V4L2_CMP_MAX_INPUT) return -EINVAL; strcpy(input->name, "MOST Video"); @@ -350,7 +344,7 @@ static int vidioc_enum_input(struct file *file, void *priv, static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; *i = mdev->ctrl_input; return 0; @@ -358,23 +352,23 @@ static int vidioc_g_input(struct file *file, void *priv, unsigned int *i) static int vidioc_s_input(struct file *file, void *priv, unsigned int index) { - struct aim_fh *fh = priv; + struct comp_fh *fh = priv; struct most_video_dev *mdev = fh->mdev; v4l2_info(&mdev->v4l2_dev, "vidioc_s_input(%d)\n", index); - if (index >= V4L2_AIM_MAX_INPUT) + if (index >= V4L2_CMP_MAX_INPUT) return -EINVAL; mdev->ctrl_input = index; return 0; } -static const struct v4l2_file_operations aim_fops = { +static const struct v4l2_file_operations comp_fops = { .owner = THIS_MODULE, - .open = aim_vdev_open, - .release = aim_vdev_close, - .read = aim_vdev_read, - .poll = aim_vdev_poll, + .open = comp_vdev_open, + .release = comp_vdev_close, + .read = comp_vdev_read, + .poll = comp_vdev_poll, .unlocked_ioctl = video_ioctl2, }; @@ -390,8 +384,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = { .vidioc_s_input = vidioc_s_input, }; -static const struct video_device aim_videodev_template = { - .fops = &aim_fops, +static const struct video_device comp_videodev_template = { + .fops = &comp_fops, .release = video_device_release, .ioctl_ops = &video_ioctl_ops, .tvnorms = V4L2_STD_UNKNOWN, @@ -399,7 +393,7 @@ static const struct video_device aim_videodev_template = { /**************************************************************************/ -static struct most_video_dev *get_aim_dev( +static struct most_video_dev *get_comp_dev( struct most_interface *iface, int channel_idx) { struct most_video_dev *mdev; @@ -416,11 +410,11 @@ static struct most_video_dev *get_aim_dev( return NULL; } -static int aim_rx_data(struct mbo *mbo) +static int comp_rx_data(struct mbo *mbo) { unsigned long flags; struct most_video_dev *mdev = - get_aim_dev(mbo->ifp, mbo->hdm_channel_id); + get_comp_dev(mbo->ifp, mbo->hdm_channel_id); if (!mdev) return -EIO; @@ -437,11 +431,11 @@ static int aim_rx_data(struct mbo *mbo) return 0; } -static int aim_register_videodev(struct most_video_dev *mdev) +static int comp_register_videodev(struct most_video_dev *mdev) { int ret; - v4l2_info(&mdev->v4l2_dev, "aim_register_videodev()\n"); + v4l2_info(&mdev->v4l2_dev, "comp_register_videodev()\n"); init_waitqueue_head(&mdev->wait_data); @@ -451,7 +445,7 @@ static int aim_register_videodev(struct most_video_dev *mdev) return -ENOMEM; /* Fill the video capture device struct */ - *mdev->vdev = aim_videodev_template; + *mdev->vdev = comp_videodev_template; mdev->vdev->v4l2_dev = &mdev->v4l2_dev; mdev->vdev->lock = &mdev->lock; snprintf(mdev->vdev->name, sizeof(mdev->vdev->name), "MOST: %s", @@ -469,14 +463,14 @@ static int aim_register_videodev(struct most_video_dev *mdev) return ret; } -static void aim_unregister_videodev(struct most_video_dev *mdev) +static void comp_unregister_videodev(struct most_video_dev *mdev) { - v4l2_info(&mdev->v4l2_dev, "aim_unregister_videodev()\n"); + v4l2_info(&mdev->v4l2_dev, "comp_unregister_videodev()\n"); video_unregister_device(mdev->vdev); } -static void aim_v4l2_dev_release(struct v4l2_device *v4l2_dev) +static void comp_v4l2_dev_release(struct v4l2_device *v4l2_dev) { struct most_video_dev *mdev = container_of(v4l2_dev, struct most_video_dev, v4l2_dev); @@ -485,14 +479,13 @@ static void aim_v4l2_dev_release(struct v4l2_device *v4l2_dev) kfree(mdev); } -static int aim_probe_channel(struct most_interface *iface, int channel_idx, - struct most_channel_config *ccfg, - struct kobject *parent, char *name) +static int comp_probe_channel(struct most_interface *iface, int channel_idx, + struct most_channel_config *ccfg, char *name) { int ret; - struct most_video_dev *mdev = get_aim_dev(iface, channel_idx); + struct most_video_dev *mdev = get_comp_dev(iface, channel_idx); - pr_info("aim_probe_channel(%s)\n", name); + pr_info("comp_probe_channel(%s)\n", name); if (mdev) { pr_err("channel already linked\n"); @@ -520,7 +513,7 @@ static int aim_probe_channel(struct most_interface *iface, int channel_idx, INIT_LIST_HEAD(&mdev->pending_mbos); mdev->iface = iface; mdev->ch_idx = channel_idx; - mdev->v4l2_dev.release = aim_v4l2_dev_release; + mdev->v4l2_dev.release = comp_v4l2_dev_release; /* Create the v4l2_device */ strlcpy(mdev->v4l2_dev.name, name, sizeof(mdev->v4l2_dev.name)); @@ -531,14 +524,14 @@ static int aim_probe_channel(struct most_interface *iface, int channel_idx, return ret; } - ret = aim_register_videodev(mdev); + ret = comp_register_videodev(mdev); if (ret) goto err_unreg; spin_lock_irq(&list_lock); list_add(&mdev->list, &video_devices); spin_unlock_irq(&list_lock); - v4l2_info(&mdev->v4l2_dev, "aim_probe_channel() done\n"); + v4l2_info(&mdev->v4l2_dev, "comp_probe_channel() done\n"); return 0; err_unreg: @@ -547,48 +540,48 @@ err_unreg: return ret; } -static int aim_disconnect_channel(struct most_interface *iface, - int channel_idx) +static int comp_disconnect_channel(struct most_interface *iface, + int channel_idx) { - struct most_video_dev *mdev = get_aim_dev(iface, channel_idx); + struct most_video_dev *mdev = get_comp_dev(iface, channel_idx); if (!mdev) { pr_err("no such channel is linked\n"); return -ENOENT; } - v4l2_info(&mdev->v4l2_dev, "aim_disconnect_channel()\n"); + v4l2_info(&mdev->v4l2_dev, "comp_disconnect_channel()\n"); spin_lock_irq(&list_lock); list_del(&mdev->list); spin_unlock_irq(&list_lock); - aim_unregister_videodev(mdev); + comp_unregister_videodev(mdev); v4l2_device_disconnect(&mdev->v4l2_dev); v4l2_device_put(&mdev->v4l2_dev); return 0; } -static struct most_aim aim_info = { - .name = "v4l", - .probe_channel = aim_probe_channel, - .disconnect_channel = aim_disconnect_channel, - .rx_completion = aim_rx_data, +static struct core_component comp_info = { + .name = "video", + .probe_channel = comp_probe_channel, + .disconnect_channel = comp_disconnect_channel, + .rx_completion = comp_rx_data, }; -static int __init aim_init(void) +static int __init comp_init(void) { spin_lock_init(&list_lock); - return most_register_aim(&aim_info); + return most_register_component(&comp); } -static void __exit aim_exit(void) +static void __exit comp_exit(void) { struct most_video_dev *mdev, *tmp; /* * As the mostcore currently doesn't call disconnect_channel() - * for linked channels while we call most_deregister_aim() + * for linked channels while we call most_deregister_component() * we simulate this call here. * This must be fixed in core. */ @@ -597,20 +590,20 @@ static void __exit aim_exit(void) list_del(&mdev->list); spin_unlock_irq(&list_lock); - aim_unregister_videodev(mdev); + comp_unregister_videodev(mdev); v4l2_device_disconnect(&mdev->v4l2_dev); v4l2_device_put(&mdev->v4l2_dev); spin_lock_irq(&list_lock); } spin_unlock_irq(&list_lock); - most_deregister_aim(&aim_info); + most_deregister_component(&comp_info); BUG_ON(!list_empty(&video_devices)); } -module_init(aim_init); -module_exit(aim_exit); +module_init(comp_init); +module_exit(comp_exit); -MODULE_DESCRIPTION("V4L2 Application Interface Module for MostCore"); +MODULE_DESCRIPTION("V4L2 Component Module for Mostcore"); MODULE_AUTHOR("Andrey Shvetsov <andrey.shvetsov@k2l.de>"); MODULE_LICENSE("GPL"); diff --git a/fs/ncpfs/Kconfig b/drivers/staging/ncpfs/Kconfig index c931cf22a1f6..c931cf22a1f6 100644 --- a/fs/ncpfs/Kconfig +++ b/drivers/staging/ncpfs/Kconfig diff --git a/fs/ncpfs/Makefile b/drivers/staging/ncpfs/Makefile index 66fe5f878817..66fe5f878817 100644 --- a/fs/ncpfs/Makefile +++ b/drivers/staging/ncpfs/Makefile diff --git a/drivers/staging/ncpfs/TODO b/drivers/staging/ncpfs/TODO new file mode 100644 index 000000000000..9b6d38b7e248 --- /dev/null +++ b/drivers/staging/ncpfs/TODO @@ -0,0 +1,4 @@ +The ncpfs code will be removed soon from the kernel tree as it is old and +obsolete and broken. + +Don't worry about fixing up anything here, it's not needed. diff --git a/fs/ncpfs/dir.c b/drivers/staging/ncpfs/dir.c index 0c57c5c5d40a..0c57c5c5d40a 100644 --- a/fs/ncpfs/dir.c +++ b/drivers/staging/ncpfs/dir.c diff --git a/fs/ncpfs/file.c b/drivers/staging/ncpfs/file.c index 8f8cc0334ddd..8f8cc0334ddd 100644 --- a/fs/ncpfs/file.c +++ b/drivers/staging/ncpfs/file.c diff --git a/fs/ncpfs/getopt.c b/drivers/staging/ncpfs/getopt.c index 5c941bef14c4..5c941bef14c4 100644 --- a/fs/ncpfs/getopt.c +++ b/drivers/staging/ncpfs/getopt.c diff --git a/fs/ncpfs/getopt.h b/drivers/staging/ncpfs/getopt.h index 30f0da317670..30f0da317670 100644 --- a/fs/ncpfs/getopt.h +++ b/drivers/staging/ncpfs/getopt.h diff --git a/fs/ncpfs/inode.c b/drivers/staging/ncpfs/inode.c index 41de88cdc053..bb411610a071 100644 --- a/fs/ncpfs/inode.c +++ b/drivers/staging/ncpfs/inode.c @@ -53,7 +53,8 @@ static struct kmem_cache * ncp_inode_cachep; static struct inode *ncp_alloc_inode(struct super_block *sb) { struct ncp_inode_info *ei; - ei = (struct ncp_inode_info *)kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL); + + ei = kmem_cache_alloc(ncp_inode_cachep, GFP_KERNEL); if (!ei) return NULL; return &ei->vfs_inode; diff --git a/fs/ncpfs/ioctl.c b/drivers/staging/ncpfs/ioctl.c index d378b98cd7b6..d378b98cd7b6 100644 --- a/fs/ncpfs/ioctl.c +++ b/drivers/staging/ncpfs/ioctl.c diff --git a/fs/ncpfs/mmap.c b/drivers/staging/ncpfs/mmap.c index a5c5cf2ff007..a5c5cf2ff007 100644 --- a/fs/ncpfs/mmap.c +++ b/drivers/staging/ncpfs/mmap.c diff --git a/fs/ncpfs/ncp_fs.h b/drivers/staging/ncpfs/ncp_fs.h index bdd262b6c198..bdd262b6c198 100644 --- a/fs/ncpfs/ncp_fs.h +++ b/drivers/staging/ncpfs/ncp_fs.h diff --git a/fs/ncpfs/ncp_fs_i.h b/drivers/staging/ncpfs/ncp_fs_i.h index 3432bafb53a5..3432bafb53a5 100644 --- a/fs/ncpfs/ncp_fs_i.h +++ b/drivers/staging/ncpfs/ncp_fs_i.h diff --git a/fs/ncpfs/ncp_fs_sb.h b/drivers/staging/ncpfs/ncp_fs_sb.h index f06cde4adf71..f06cde4adf71 100644 --- a/fs/ncpfs/ncp_fs_sb.h +++ b/drivers/staging/ncpfs/ncp_fs_sb.h diff --git a/fs/ncpfs/ncplib_kernel.c b/drivers/staging/ncpfs/ncplib_kernel.c index 804adfebba2f..804adfebba2f 100644 --- a/fs/ncpfs/ncplib_kernel.c +++ b/drivers/staging/ncpfs/ncplib_kernel.c diff --git a/fs/ncpfs/ncplib_kernel.h b/drivers/staging/ncpfs/ncplib_kernel.h index aaae8aa9bf7d..aaae8aa9bf7d 100644 --- a/fs/ncpfs/ncplib_kernel.h +++ b/drivers/staging/ncpfs/ncplib_kernel.h diff --git a/fs/ncpfs/ncpsign_kernel.c b/drivers/staging/ncpfs/ncpsign_kernel.c index 8085b1a3ba47..8085b1a3ba47 100644 --- a/fs/ncpfs/ncpsign_kernel.c +++ b/drivers/staging/ncpfs/ncpsign_kernel.c diff --git a/fs/ncpfs/ncpsign_kernel.h b/drivers/staging/ncpfs/ncpsign_kernel.h index 57ff0a0650b8..57ff0a0650b8 100644 --- a/fs/ncpfs/ncpsign_kernel.h +++ b/drivers/staging/ncpfs/ncpsign_kernel.h diff --git a/fs/ncpfs/sock.c b/drivers/staging/ncpfs/sock.c index 4c13174d85b7..4c13174d85b7 100644 --- a/fs/ncpfs/sock.c +++ b/drivers/staging/ncpfs/sock.c diff --git a/fs/ncpfs/symlink.c b/drivers/staging/ncpfs/symlink.c index b6e16da4837a..b6e16da4837a 100644 --- a/fs/ncpfs/symlink.c +++ b/drivers/staging/ncpfs/symlink.c diff --git a/drivers/staging/nvec/nvec-keytable.h b/drivers/staging/nvec/nvec-keytable.h index 7008c96bdbbe..ac58e87e6a4e 100644 --- a/drivers/staging/nvec/nvec-keytable.h +++ b/drivers/staging/nvec/nvec-keytable.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * drivers/input/keyboard/tegra-nvec.c * @@ -5,19 +6,6 @@ * embedded controller * * Copyright (c) 2009, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see http://www.gnu.org/licenses */ static unsigned short code_tab_102us[] = { diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 4ff8f47385da..52054a528723 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * NVEC: NVIDIA compliant embedded controller interface * @@ -7,11 +8,6 @@ * Ilya Petrov <ilya.muromec@gmail.com> * Marc Dietrich <marvin24@gmx.de> * Julian Andres Klode <jak@jak-linux.org> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * */ #include <linux/kernel.h> diff --git a/drivers/staging/nvec/nvec.h b/drivers/staging/nvec/nvec.h index aa7c70ef94f5..25efcdfa4f20 100644 --- a/drivers/staging/nvec/nvec.h +++ b/drivers/staging/nvec/nvec.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * NVEC: NVIDIA compliant embedded controller interface * @@ -7,11 +8,6 @@ * Ilya Petrov <ilya.muromec@gmail.com> * Marc Dietrich <marvin24@gmx.de> * Julian Andres Klode <jak@jak-linux.org> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * */ #ifndef __LINUX_MFD_NVEC diff --git a/drivers/staging/nvec/nvec_kbd.c b/drivers/staging/nvec/nvec_kbd.c index a01f486621eb..01dbb66f7e9a 100644 --- a/drivers/staging/nvec/nvec_kbd.c +++ b/drivers/staging/nvec/nvec_kbd.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * nvec_kbd: keyboard driver for a NVIDIA compliant embedded controller * @@ -5,11 +6,6 @@ * * Authors: Pierre-Hugues Husson <phhusson@free.fr> * Marc Dietrich <marvin24@gmx.de> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * */ #include <linux/module.h> diff --git a/drivers/staging/nvec/nvec_paz00.c b/drivers/staging/nvec/nvec_paz00.c index 51dbeeb3320e..8b4da95081c8 100644 --- a/drivers/staging/nvec/nvec_paz00.c +++ b/drivers/staging/nvec/nvec_paz00.c @@ -1,14 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0 /* * nvec_paz00: OEM specific driver for Compal PAZ00 based devices * * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.launchpad.net> * * Authors: Ilya Petrov <ilya.muromec@gmail.com> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * */ #include <linux/module.h> diff --git a/drivers/staging/nvec/nvec_power.c b/drivers/staging/nvec/nvec_power.c index 3b144a9ea055..0e861c4bfcbf 100644 --- a/drivers/staging/nvec/nvec_power.c +++ b/drivers/staging/nvec/nvec_power.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * nvec_power: power supply driver for a NVIDIA compliant embedded controller * @@ -5,11 +6,6 @@ * * Authors: Ilya Petrov <ilya.muromec@gmail.com> * Marc Dietrich <marvin24@gmx.de> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * */ #include <linux/module.h> diff --git a/drivers/staging/nvec/nvec_ps2.c b/drivers/staging/nvec/nvec_ps2.c index 3b7bce3ffd19..45db29262a9c 100644 --- a/drivers/staging/nvec/nvec_ps2.c +++ b/drivers/staging/nvec/nvec_ps2.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * nvec_ps2: mouse driver for a NVIDIA compliant embedded controller * @@ -6,11 +7,6 @@ * Authors: Pierre-Hugues Husson <phhusson@free.fr> * Ilya Petrov <ilya.muromec@gmail.com> * Marc Dietrich <marvin24@gmx.de> - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * */ #include <linux/module.h> diff --git a/drivers/staging/octeon/Makefile b/drivers/staging/octeon/Makefile index 8ca17210d917..3887cf5f1e84 100644 --- a/drivers/staging/octeon/Makefile +++ b/drivers/staging/octeon/Makefile @@ -1,6 +1,4 @@ -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. +# SPDX-License-Identifier: GPL-2.0 # # Copyright (C) 2005-2009 Cavium Networks # diff --git a/drivers/staging/octeon/ethernet-defines.h b/drivers/staging/octeon/ethernet-defines.h index 07bd2b87f6a0..1e114422993a 100644 --- a/drivers/staging/octeon/ethernet-defines.h +++ b/drivers/staging/octeon/ethernet-defines.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ /* diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c index 691e4a51ace4..f67f95043887 100644 --- a/drivers/staging/octeon/ethernet-mdio.c +++ b/drivers/staging/octeon/ethernet-mdio.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/staging/octeon/ethernet-mdio.h b/drivers/staging/octeon/ethernet-mdio.h index 5ed8483fc24d..e3771d48c49b 100644 --- a/drivers/staging/octeon/ethernet-mdio.h +++ b/drivers/staging/octeon/ethernet-mdio.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/staging/octeon/ethernet-mem.c b/drivers/staging/octeon/ethernet-mem.c index d6172e4dace5..0d26c4a93ec1 100644 --- a/drivers/staging/octeon/ethernet-mem.c +++ b/drivers/staging/octeon/ethernet-mem.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2010 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/staging/octeon/ethernet-mem.h b/drivers/staging/octeon/ethernet-mem.h index 62d07c426f89..692dcdb7154d 100644 --- a/drivers/staging/octeon/ethernet-mem.h +++ b/drivers/staging/octeon/ethernet-mem.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ int cvm_oct_mem_fill_fpa(int pool, int size, int elements); diff --git a/drivers/staging/octeon/ethernet-rgmii.c b/drivers/staging/octeon/ethernet-rgmii.c index 4e7304210bb9..c15376d33891 100644 --- a/drivers/staging/octeon/ethernet-rgmii.c +++ b/drivers/staging/octeon/ethernet-rgmii.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 1a44291318ee..5e271245273c 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2010 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/staging/octeon/ethernet-rx.h b/drivers/staging/octeon/ethernet-rx.h index 315a63d7094f..096553d8fc99 100644 --- a/drivers/staging/octeon/ethernet-rx.h +++ b/drivers/staging/octeon/ethernet-rx.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <asm/octeon/cvmx-fau.h> diff --git a/drivers/staging/octeon/ethernet-sgmii.c b/drivers/staging/octeon/ethernet-sgmii.c index 7424dc45ad39..a4a8f094e2b4 100644 --- a/drivers/staging/octeon/ethernet-sgmii.c +++ b/drivers/staging/octeon/ethernet-sgmii.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/phy.h> diff --git a/drivers/staging/octeon/ethernet-spi.c b/drivers/staging/octeon/ethernet-spi.c index 063dcd07557b..01efdf2a2c20 100644 --- a/drivers/staging/octeon/ethernet-spi.c +++ b/drivers/staging/octeon/ethernet-spi.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/kernel.h> diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c index 31f35025d19e..df3441b815bb 100644 --- a/drivers/staging/octeon/ethernet-tx.c +++ b/drivers/staging/octeon/ethernet-tx.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2010 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/module.h> diff --git a/drivers/staging/octeon/ethernet-tx.h b/drivers/staging/octeon/ethernet-tx.h index 84848e4c1664..78936e9b33b0 100644 --- a/drivers/staging/octeon/ethernet-tx.h +++ b/drivers/staging/octeon/ethernet-tx.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev); diff --git a/drivers/staging/octeon/ethernet-util.h b/drivers/staging/octeon/ethernet-util.h index cb5540dc0e9d..31a82873e15c 100644 --- a/drivers/staging/octeon/ethernet-util.h +++ b/drivers/staging/octeon/ethernet-util.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <asm/octeon/cvmx-pip.h> diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 429e24adfcf5..9b15c9ed844b 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -1,11 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2007 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ #include <linux/platform_device.h> diff --git a/drivers/staging/octeon/octeon-ethernet.h b/drivers/staging/octeon/octeon-ethernet.h index 9c3f453adaa0..4a07e7f43d12 100644 --- a/drivers/staging/octeon/octeon-ethernet.h +++ b/drivers/staging/octeon/octeon-ethernet.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * This file is based on code from OCTEON SDK by Cavium Networks. * * Copyright (c) 2003-2010 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. */ /* diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c index 82bffd911435..2744c9f0920e 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon.c +++ b/drivers/staging/olpc_dcon/olpc_dcon.c @@ -393,7 +393,8 @@ static void dcon_set_source_sync(struct dcon_priv *dcon, int arg) } static ssize_t dcon_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct dcon_priv *dcon = dev_get_drvdata(dev); @@ -401,7 +402,8 @@ static ssize_t dcon_mode_show(struct device *dev, } static ssize_t dcon_sleep_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct dcon_priv *dcon = dev_get_drvdata(dev); @@ -409,7 +411,8 @@ static ssize_t dcon_sleep_show(struct device *dev, } static ssize_t dcon_freeze_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct dcon_priv *dcon = dev_get_drvdata(dev); @@ -417,7 +420,8 @@ static ssize_t dcon_freeze_show(struct device *dev, } static ssize_t dcon_mono_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { struct dcon_priv *dcon = dev_get_drvdata(dev); @@ -425,13 +429,15 @@ static ssize_t dcon_mono_show(struct device *dev, } static ssize_t dcon_resumeline_show(struct device *dev, - struct device_attribute *attr, char *buf) + struct device_attribute *attr, + char *buf) { return sprintf(buf, "%d\n", resumeline); } static ssize_t dcon_mono_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) + struct device_attribute *attr, + const char *buf, size_t count) { unsigned long enable_mono; int rc; @@ -446,7 +452,8 @@ static ssize_t dcon_mono_store(struct device *dev, } static ssize_t dcon_freeze_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) + struct device_attribute *attr, + const char *buf, size_t count) { struct dcon_priv *dcon = dev_get_drvdata(dev); unsigned long output; @@ -474,7 +481,8 @@ static ssize_t dcon_freeze_store(struct device *dev, } static ssize_t dcon_resumeline_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) + struct device_attribute *attr, + const char *buf, size_t count) { unsigned short rl; int rc; @@ -490,7 +498,8 @@ static ssize_t dcon_resumeline_store(struct device *dev, } static ssize_t dcon_sleep_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t count) + struct device_attribute *attr, + const char *buf, size_t count) { unsigned long output; int ret; @@ -641,7 +650,8 @@ static int dcon_probe(struct i2c_client *client, const struct i2c_device_id *id) /* Add the backlight device for the DCON */ dcon_bl_props.brightness = dcon->bl_val; dcon->bl_dev = backlight_device_register("dcon-bl", &dcon_device->dev, - dcon, &dcon_bl_ops, &dcon_bl_props); + dcon, &dcon_bl_ops, + &dcon_bl_props); if (IS_ERR(dcon->bl_dev)) { dev_err(&client->dev, "cannot register backlight dev (%ld)\n", PTR_ERR(dcon->bl_dev)); diff --git a/drivers/staging/olpc_dcon/olpc_dcon.h b/drivers/staging/olpc_dcon/olpc_dcon.h index 8fbde5d3b4a6..fa89bb97c7b0 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon.h +++ b/drivers/staging/olpc_dcon/olpc_dcon.h @@ -10,18 +10,18 @@ #define DCON_REG_ID 0 #define DCON_REG_MODE 1 -#define MODE_PASSTHRU (1<<0) -#define MODE_SLEEP (1<<1) -#define MODE_SLEEP_AUTO (1<<2) -#define MODE_BL_ENABLE (1<<3) -#define MODE_BLANK (1<<4) -#define MODE_CSWIZZLE (1<<5) -#define MODE_COL_AA (1<<6) -#define MODE_MONO_LUMA (1<<7) -#define MODE_SCAN_INT (1<<8) -#define MODE_CLOCKDIV (1<<9) -#define MODE_DEBUG (1<<14) -#define MODE_SELFTEST (1<<15) +#define MODE_PASSTHRU BIT(0) +#define MODE_SLEEP BIT(1) +#define MODE_SLEEP_AUTO BIT(2) +#define MODE_BL_ENABLE BIT(3) +#define MODE_BLANK BIT(4) +#define MODE_CSWIZZLE BIT(5) +#define MODE_COL_AA BIT(6) +#define MODE_MONO_LUMA BIT(7) +#define MODE_SCAN_INT BIT(8) +#define MODE_CLOCKDIV BIT(9) +#define MODE_DEBUG BIT(14) +#define MODE_SELFTEST BIT(15) #define DCON_REG_HRES 0x2 #define DCON_REG_HTOTAL 0x3 @@ -36,11 +36,11 @@ #define DCON_REG_MEM_OPT_B 0x42 /* Load Delay Locked Loop (DLL) settings for clock delay */ -#define MEM_DLL_CLOCK_DELAY (1<<0) +#define MEM_DLL_CLOCK_DELAY BIT(0) /* Memory controller power down function */ -#define MEM_POWER_DOWN (1<<8) +#define MEM_POWER_DOWN BIT(8) /* Memory controller software reset */ -#define MEM_SOFT_RESET (1<<0) +#define MEM_SOFT_RESET BIT(0) /* Status values */ diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c index 0c5a10c69401..633c58ce24ee 100644 --- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c +++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c @@ -69,7 +69,7 @@ static int dcon_init_xo_1(struct dcon_priv *dcon) gpio_direction_input(OLPC_GPIO_DCON_IRQ); gpio_direction_input(OLPC_GPIO_DCON_BLANK); gpio_direction_output(OLPC_GPIO_DCON_LOAD, - dcon->curr_src == DCON_SOURCE_CPU); + dcon->curr_src == DCON_SOURCE_CPU); /* Set up the interrupt mappings */ diff --git a/drivers/staging/pi433/Documentation/devicetree/pi433-overlay.dts b/drivers/staging/pi433/Documentation/devicetree/pi433-overlay.dts index 004b5027a934..61fad96818c2 100644 --- a/drivers/staging/pi433/Documentation/devicetree/pi433-overlay.dts +++ b/drivers/staging/pi433/Documentation/devicetree/pi433-overlay.dts @@ -3,22 +3,22 @@ /plugin/; / { - compatible = "bcm,bcm2835", "bcm,bcm2708", "bcm,bcm2709"; - - fragment@0 { - target = <&spi0>; - __overlay__ { - status = "okay"; - - spidev@0{ - status = "disabled"; - }; - - spidev@1{ - status = "disabled"; - }; - }; - }; + compatible = "bcm,bcm2835", "bcm,bcm2708", "bcm,bcm2709"; + + fragment@0 { + target = <&spi0>; + __overlay__ { + status = "okay"; + + spidev@0{ + status = "disabled"; + }; + + spidev@1{ + status = "disabled"; + }; + }; + }; fragment@1 { target = <&gpio>; diff --git a/drivers/staging/pi433/Documentation/pi433.txt b/drivers/staging/pi433/Documentation/pi433.txt index 245fef33d688..7d9dc2244848 100644 --- a/drivers/staging/pi433/Documentation/pi433.txt +++ b/drivers/staging/pi433/Documentation/pi433.txt @@ -69,8 +69,8 @@ PI433_IOC_WR_TX_CFG - set the transmission parameters PI433_IOC_RD_RX_CFG - get the receiving parameters from the driver PI433_IOC_WR_RX_CFG - set the receiving parameters -The tx configuration is transfered via struct pi433_tx_cfg, the parameterset for transmission. -It is devided into two sections: rf parameters and packet format. +The tx configuration is transferred via struct pi433_tx_cfg, the parameterset for transmission. +It is divided into two sections: rf parameters and packet format. rf params: frequency @@ -110,9 +110,9 @@ rf params: ramp12 - amp ramps up in 12us ramp10 - amp ramps up in 10us tx_start_condition - fifoLevel - transmission starts, if fifo is filled to + fifo_level - transmission starts, if fifo is filled to threshold level - fifoNotEmpty - transmission starts, as soon as there is one + fifo_not_empty - transmission starts, as soon as there is one byte in internal fifo repetitions This gives the option, to send a telegram multiple times. Default: 1 @@ -200,11 +200,11 @@ rf params: sets the gain of the low noise amp automatic - lna gain is determined by an agc max - lna gain is set to maximum - maxMinus6 - lna gain is set to 6db below max - maxMinus12 - lna gain is set to 12db below max - maxMinus24 - lna gain is set to 24db below max - maxMinus36 - lna gain is set to 36db below max - maxMinus48 - lna gain is set to 48db below max + max_minus_6 - lna gain is set to 6db below max + max_minus_12 - lna gain is set to 12db below max + max_minus_24 - lna gain is set to 24db below max + max_minus_36 - lna gain is set to 36db below max + max_minus_48 - lna gain is set to 48db below max bw_mantisse sets the bandwidth of the channel filter - part one: mantisse. mantisse16 - mantisse is set to 16 diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c index 2a205c6173dc..edcd7e798f99 100644 --- a/drivers/staging/pi433/pi433_if.c +++ b/drivers/staging/pi433/pi433_if.c @@ -48,14 +48,13 @@ #include <linux/wait.h> #include <linux/spi/spi.h> #ifdef CONFIG_COMPAT -#include <asm/compat.h> +#include <linux/compat.h> #endif #include "pi433_if.h" #include "rf69.h" - -#define N_PI433_MINORS (1U << MINORBITS) /*32*/ /* ... up to 256 */ +#define N_PI433_MINORS BIT(MINORBITS) /*32*/ /* ... up to 256 */ #define MAX_MSG_SIZE 900 /* min: FIFO_SIZE! */ #define MSG_FIFO_SIZE 65536 /* 65536 = 2^16 */ #define NUM_DIO 2 @@ -79,7 +78,7 @@ struct pi433_device { struct device *dev; struct cdev *cdev; struct spi_device *spi; - unsigned users; + unsigned int users; /* irq related values */ struct gpio_desc *gpiod[NUM_DIO]; @@ -121,32 +120,20 @@ struct pi433_instance { /*-------------------------------------------------------------------------*/ -/* macro for checked access of registers of radio module */ -#define SET_CHECKED(retval) \ - if (retval < 0) \ - return retval; - -/*-------------------------------------------------------------------------*/ - /* GPIO interrupt handlers */ static irqreturn_t DIO0_irq_handler(int irq, void *dev_id) { struct pi433_device *device = dev_id; - if (device->irq_state[DIO0] == DIO_PacketSent) - { + if (device->irq_state[DIO0] == DIO_PACKET_SENT) { device->free_in_fifo = FIFO_SIZE; dev_dbg(device->dev, "DIO0 irq: Packet sent\n"); wake_up_interruptible(&device->fifo_wait_queue); - } - else if (device->irq_state[DIO0] == DIO_Rssi_DIO0) - { + } else if (device->irq_state[DIO0] == DIO_RSSI_DIO0) { dev_dbg(device->dev, "DIO0 irq: RSSI level over threshold\n"); wake_up_interruptible(&device->rx_wait_queue); - } - else if (device->irq_state[DIO0] == DIO_PayloadReady) - { - dev_dbg(device->dev, "DIO0 irq: PayloadReady\n"); + } else if (device->irq_state[DIO0] == DIO_PAYLOAD_READY) { + dev_dbg(device->dev, "DIO0 irq: Payload ready\n"); device->free_in_fifo = 0; wake_up_interruptible(&device->fifo_wait_queue); } @@ -158,14 +145,13 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id) { struct pi433_device *device = dev_id; - if (device->irq_state[DIO1] == DIO_FifoNotEmpty_DIO1) - { + if (device->irq_state[DIO1] == DIO_FIFO_NOT_EMPTY_DIO1) { device->free_in_fifo = FIFO_SIZE; - } - else if (device->irq_state[DIO1] == DIO_FifoLevel) - { - if (device->rx_active) device->free_in_fifo = FIFO_THRESHOLD - 1; - else device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1; + } else if (device->irq_state[DIO1] == DIO_FIFO_LEVEL) { + if (device->rx_active) + device->free_in_fifo = FIFO_THRESHOLD - 1; + else + device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1; } dev_dbg(device->dev, "DIO1 irq: %d bytes free in fifo\n", device->free_in_fifo); @@ -183,30 +169,56 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg) int payload_length; /* receiver config */ - SET_CHECKED(rf69_set_frequency (dev->spi, rx_cfg->frequency)); - SET_CHECKED(rf69_set_bit_rate (dev->spi, rx_cfg->bit_rate)); - SET_CHECKED(rf69_set_modulation (dev->spi, rx_cfg->modulation)); - SET_CHECKED(rf69_set_antenna_impedance (dev->spi, rx_cfg->antenna_impedance)); - SET_CHECKED(rf69_set_rssi_threshold (dev->spi, rx_cfg->rssi_threshold)); - SET_CHECKED(rf69_set_ook_threshold_dec (dev->spi, rx_cfg->thresholdDecrement)); - SET_CHECKED(rf69_set_bandwidth (dev->spi, rx_cfg->bw_mantisse, rx_cfg->bw_exponent)); - SET_CHECKED(rf69_set_bandwidth_during_afc(dev->spi, rx_cfg->bw_mantisse, rx_cfg->bw_exponent)); - SET_CHECKED(rf69_set_dagc (dev->spi, rx_cfg->dagc)); + ret = rf69_set_frequency(dev->spi, rx_cfg->frequency); + if (ret < 0) + return ret; + ret = rf69_set_bit_rate(dev->spi, rx_cfg->bit_rate); + if (ret < 0) + return ret; + ret = rf69_set_modulation(dev->spi, rx_cfg->modulation); + if (ret < 0) + return ret; + ret = rf69_set_antenna_impedance(dev->spi, rx_cfg->antenna_impedance); + if (ret < 0) + return ret; + ret = rf69_set_rssi_threshold(dev->spi, rx_cfg->rssi_threshold); + if (ret < 0) + return ret; + ret = rf69_set_ook_threshold_dec(dev->spi, rx_cfg->threshold_decrement); + if (ret < 0) + return ret; + ret = rf69_set_bandwidth(dev->spi, rx_cfg->bw_mantisse, rx_cfg->bw_exponent); + if (ret < 0) + return ret; + ret = rf69_set_bandwidth_during_afc(dev->spi, rx_cfg->bw_mantisse, rx_cfg->bw_exponent); + if (ret < 0) + return ret; + ret = rf69_set_dagc(dev->spi, rx_cfg->dagc); + if (ret < 0) + return ret; dev->rx_bytes_to_drop = rx_cfg->bytes_to_drop; /* packet config */ /* enable */ - SET_CHECKED(rf69_set_sync_enable(dev->spi, rx_cfg->enable_sync)); - if (rx_cfg->enable_sync == optionOn) - { - SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, afterSyncInterrupt)); - } - else - { - SET_CHECKED(rf69_set_fifo_fill_condition(dev->spi, always)); + if (rx_cfg->enable_sync == OPTION_ON) { + ret = rf69_enable_sync(dev->spi); + if (ret < 0) + return ret; + + ret = rf69_set_fifo_fill_condition(dev->spi, afterSyncInterrupt); + if (ret < 0) + return ret; + } else { + ret = rf69_disable_sync(dev->spi); + if (ret < 0) + return ret; + + ret = rf69_set_fifo_fill_condition(dev->spi, always); + if (ret < 0) + return ret; } - if (rx_cfg->enable_length_byte == optionOn) { + if (rx_cfg->enable_length_byte == OPTION_ON) { ret = rf69_set_packet_format(dev->spi, packetLengthVar); if (ret < 0) return ret; @@ -215,36 +227,56 @@ rf69_set_rx_cfg(struct pi433_device *dev, struct pi433_rx_cfg *rx_cfg) if (ret < 0) return ret; } - SET_CHECKED(rf69_set_adressFiltering(dev->spi, rx_cfg->enable_address_filtering)); - SET_CHECKED(rf69_set_crc_enable (dev->spi, rx_cfg->enable_crc)); + ret = rf69_set_adressFiltering(dev->spi, rx_cfg->enable_address_filtering); + if (ret < 0) + return ret; - /* lengths */ - SET_CHECKED(rf69_set_sync_size(dev->spi, rx_cfg->sync_length)); - if (rx_cfg->enable_length_byte == optionOn) - { - SET_CHECKED(rf69_set_payload_length(dev->spi, 0xff)); + if (rx_cfg->enable_crc == OPTION_ON) { + ret = rf69_enable_crc(dev->spi); + if (ret < 0) + return ret; + } else { + ret = rf69_disable_crc(dev->spi); + if (ret < 0) + return ret; } - else if (rx_cfg->fixed_message_length != 0) - { + + /* lengths */ + ret = rf69_set_sync_size(dev->spi, rx_cfg->sync_length); + if (ret < 0) + return ret; + if (rx_cfg->enable_length_byte == OPTION_ON) { + ret = rf69_set_payload_length(dev->spi, 0xff); + if (ret < 0) + return ret; + } else if (rx_cfg->fixed_message_length != 0) { payload_length = rx_cfg->fixed_message_length; - if (rx_cfg->enable_length_byte == optionOn) payload_length++; - if (rx_cfg->enable_address_filtering != filteringOff) payload_length++; - SET_CHECKED(rf69_set_payload_length(dev->spi, payload_length)); - } - else - { - SET_CHECKED(rf69_set_payload_length(dev->spi, 0)); + if (rx_cfg->enable_length_byte == OPTION_ON) + payload_length++; + if (rx_cfg->enable_address_filtering != filteringOff) + payload_length++; + ret = rf69_set_payload_length(dev->spi, payload_length); + if (ret < 0) + return ret; + } else { + ret = rf69_set_payload_length(dev->spi, 0); + if (ret < 0) + return ret; } /* values */ - if (rx_cfg->enable_sync == optionOn) - { - SET_CHECKED(rf69_set_sync_values(dev->spi, rx_cfg->sync_pattern)); + if (rx_cfg->enable_sync == OPTION_ON) { + ret = rf69_set_sync_values(dev->spi, rx_cfg->sync_pattern); + if (ret < 0) + return ret; } - if (rx_cfg->enable_address_filtering != filteringOff) - { - SET_CHECKED(rf69_set_node_address (dev->spi, rx_cfg->node_address)); - SET_CHECKED(rf69_set_broadcast_address(dev->spi, rx_cfg->broadcast_address)); + if (rx_cfg->enable_address_filtering != filteringOff) { + ret = rf69_set_node_address(dev->spi, rx_cfg->node_address); + if (ret < 0) + return ret; + ret = rf69_set_broadcast_address(dev->spi, rx_cfg->broadcast_address); + if (ret < 0) + return ret; } return 0; @@ -255,25 +287,50 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg) { int ret; - SET_CHECKED(rf69_set_frequency (dev->spi, tx_cfg->frequency)); - SET_CHECKED(rf69_set_bit_rate (dev->spi, tx_cfg->bit_rate)); - SET_CHECKED(rf69_set_modulation (dev->spi, tx_cfg->modulation)); - SET_CHECKED(rf69_set_deviation (dev->spi, tx_cfg->dev_frequency)); - SET_CHECKED(rf69_set_pa_ramp (dev->spi, tx_cfg->pa_ramp)); - SET_CHECKED(rf69_set_modulation_shaping(dev->spi, tx_cfg->modShaping)); - SET_CHECKED(rf69_set_tx_start_condition(dev->spi, tx_cfg->tx_start_condition)); + ret = rf69_set_frequency(dev->spi, tx_cfg->frequency); + if (ret < 0) + return ret; + ret = rf69_set_bit_rate(dev->spi, tx_cfg->bit_rate); + if (ret < 0) + return ret; + ret = rf69_set_modulation(dev->spi, tx_cfg->modulation); + if (ret < 0) + return ret; + ret = rf69_set_deviation(dev->spi, tx_cfg->dev_frequency); + if (ret < 0) + return ret; + ret = rf69_set_pa_ramp(dev->spi, tx_cfg->pa_ramp); + if (ret < 0) + return ret; + ret = rf69_set_modulation_shaping(dev->spi, tx_cfg->mod_shaping); + if (ret < 0) + return ret; + ret = rf69_set_tx_start_condition(dev->spi, tx_cfg->tx_start_condition); + if (ret < 0) + return ret; /* packet format enable */ - if (tx_cfg->enable_preamble == optionOn) - { - SET_CHECKED(rf69_set_preamble_length(dev->spi, tx_cfg->preamble_length)); + if (tx_cfg->enable_preamble == OPTION_ON) { + ret = rf69_set_preamble_length(dev->spi, tx_cfg->preamble_length); + if (ret < 0) + return ret; + } else { + ret = rf69_set_preamble_length(dev->spi, 0); + if (ret < 0) + return ret; } - else - { - SET_CHECKED(rf69_set_preamble_length(dev->spi, 0)); + + if (tx_cfg->enable_sync == OPTION_ON) { + ret = rf69_enable_sync(dev->spi); + if (ret < 0) + return ret; + } else { + ret = rf69_disable_sync(dev->spi); + if (ret < 0) + return ret; } - SET_CHECKED(rf69_set_sync_enable (dev->spi, tx_cfg->enable_sync)); - if (tx_cfg->enable_length_byte == optionOn) { + + if (tx_cfg->enable_length_byte == OPTION_ON) { ret = rf69_set_packet_format(dev->spi, packetLengthVar); if (ret < 0) return ret; @@ -282,12 +339,25 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg) if (ret < 0) return ret; } - SET_CHECKED(rf69_set_crc_enable (dev->spi, tx_cfg->enable_crc)); + + if (tx_cfg->enable_crc == OPTION_ON) { + ret = rf69_enable_crc(dev->spi); + if (ret < 0) + return ret; + } else { + ret = rf69_disable_crc(dev->spi); + if (ret < 0) + return ret; + } /* configure sync, if enabled */ - if (tx_cfg->enable_sync == optionOn) { - SET_CHECKED(rf69_set_sync_size(dev->spi, tx_cfg->sync_length)); - SET_CHECKED(rf69_set_sync_values(dev->spi, tx_cfg->sync_pattern)); + if (tx_cfg->enable_sync == OPTION_ON) { + ret = rf69_set_sync_size(dev->spi, tx_cfg->sync_length); + if (ret < 0) + return ret; + ret = rf69_set_sync_values(dev->spi, tx_cfg->sync_pattern); + if (ret < 0) + return ret; } return 0; @@ -306,43 +376,51 @@ pi433_start_rx(struct pi433_device *dev) /* setup for receiving */ retval = rf69_set_rx_cfg(dev, &dev->rx_cfg); - if (retval) return retval; + if (retval) + return retval; /* setup rssi irq */ - SET_CHECKED(rf69_set_dio_mapping(dev->spi, DIO0, DIO_Rssi_DIO0)); - dev->irq_state[DIO0] = DIO_Rssi_DIO0; + retval = rf69_set_dio_mapping(dev->spi, DIO0, DIO_RSSI_DIO0); + if (retval < 0) + return retval; + dev->irq_state[DIO0] = DIO_RSSI_DIO0; irq_set_irq_type(dev->irq_num[DIO0], IRQ_TYPE_EDGE_RISING); /* setup fifo level interrupt */ - SET_CHECKED(rf69_set_fifo_threshold(dev->spi, FIFO_SIZE - FIFO_THRESHOLD)); - SET_CHECKED(rf69_set_dio_mapping(dev->spi, DIO1, DIO_FifoLevel)); - dev->irq_state[DIO1] = DIO_FifoLevel; + retval = rf69_set_fifo_threshold(dev->spi, FIFO_SIZE - FIFO_THRESHOLD); + if (retval < 0) + return retval; + retval = rf69_set_dio_mapping(dev->spi, DIO1, DIO_FIFO_LEVEL); + if (retval < 0) + return retval; + dev->irq_state[DIO1] = DIO_FIFO_LEVEL; irq_set_irq_type(dev->irq_num[DIO1], IRQ_TYPE_EDGE_RISING); /* set module to receiving mode */ - SET_CHECKED(rf69_set_mode(dev->spi, receive)); + retval = rf69_set_mode(dev->spi, receive); + if (retval < 0) + return retval; return 0; } - /*-------------------------------------------------------------------------*/ static int pi433_receive(void *data) { struct pi433_device *dev = data; - struct spi_device *spi = dev->spi; /* needed for SET_CHECKED */ + struct spi_device *spi = dev->spi; int bytes_to_read, bytes_total; int retval; dev->interrupt_rx_allowed = false; /* wait for any tx to finish */ - dev_dbg(dev->dev,"rx: going to wait for any tx to finish"); + dev_dbg(dev->dev, "rx: going to wait for any tx to finish"); retval = wait_event_interruptible(dev->rx_wait_queue, !dev->tx_active); - if(retval) /* wait was interrupted */ - { + if (retval) { + /* wait was interrupted */ dev->interrupt_rx_allowed = true; wake_up_interruptible(&dev->tx_wait_queue); return retval; @@ -359,8 +437,7 @@ pi433_receive(void *data) return retval; /* now check RSSI, if low wait for getting high (RSSI interrupt) */ - while ( !rf69_get_flag(dev->spi, rssiExceededThreshold) ) - { + while (!rf69_get_flag(dev->spi, rssiExceededThreshold)) { /* allow tx to interrupt us while waiting for high RSSI */ dev->interrupt_rx_allowed = true; wake_up_interruptible(&dev->tx_wait_queue); @@ -368,43 +445,43 @@ pi433_receive(void *data) /* wait for RSSI level to become high */ dev_dbg(dev->dev, "rx: going to wait for high RSSI level"); retval = wait_event_interruptible(dev->rx_wait_queue, - rf69_get_flag(dev->spi, - rssiExceededThreshold)); - if (retval) goto abort; /* wait was interrupted */ + rf69_get_flag(dev->spi, + rssiExceededThreshold)); + if (retval) /* wait was interrupted */ + goto abort; dev->interrupt_rx_allowed = false; /* cross check for ongoing tx */ - if (!dev->tx_active) break; + if (!dev->tx_active) + break; } /* configure payload ready irq */ - SET_CHECKED(rf69_set_dio_mapping(spi, DIO0, DIO_PayloadReady)); - dev->irq_state[DIO0] = DIO_PayloadReady; + retval = rf69_set_dio_mapping(spi, DIO0, DIO_PAYLOAD_READY); + if (retval < 0) + goto abort; + dev->irq_state[DIO0] = DIO_PAYLOAD_READY; irq_set_irq_type(dev->irq_num[DIO0], IRQ_TYPE_EDGE_RISING); /* fixed or unlimited length? */ - if (dev->rx_cfg.fixed_message_length != 0) - { - if (dev->rx_cfg.fixed_message_length > dev->rx_buffer_size) - { + if (dev->rx_cfg.fixed_message_length != 0) { + if (dev->rx_cfg.fixed_message_length > dev->rx_buffer_size) { retval = -1; goto abort; } bytes_total = dev->rx_cfg.fixed_message_length; - dev_dbg(dev->dev,"rx: msg len set to %d by fixed length", bytes_total); - } - else - { + dev_dbg(dev->dev, "rx: msg len set to %d by fixed length", bytes_total); + } else { bytes_total = dev->rx_buffer_size; dev_dbg(dev->dev, "rx: msg len set to %d as requested by read", bytes_total); } /* length byte enabled? */ - if (dev->rx_cfg.enable_length_byte == optionOn) - { + if (dev->rx_cfg.enable_length_byte == OPTION_ON) { retval = wait_event_interruptible(dev->fifo_wait_queue, dev->free_in_fifo < FIFO_SIZE); - if (retval) goto abort; /* wait was interrupted */ + if (retval) /* wait was interrupted */ + goto abort; rf69_read_fifo(spi, (u8 *)&bytes_total, 1); if (bytes_total > dev->rx_buffer_size) { @@ -416,15 +493,15 @@ pi433_receive(void *data) } /* address byte enabled? */ - if (dev->rx_cfg.enable_address_filtering != filteringOff) - { + if (dev->rx_cfg.enable_address_filtering != filteringOff) { u8 dummy; bytes_total--; retval = wait_event_interruptible(dev->fifo_wait_queue, dev->free_in_fifo < FIFO_SIZE); - if (retval) goto abort; /* wait was interrupted */ + if (retval) /* wait was interrupted */ + goto abort; rf69_read_fifo(spi, &dummy, 1); dev->free_in_fifo++; @@ -432,13 +509,12 @@ pi433_receive(void *data) } /* get payload */ - while (dev->rx_position < bytes_total) - { - if ( !rf69_get_flag(dev->spi, payloadReady) ) - { + while (dev->rx_position < bytes_total) { + if (!rf69_get_flag(dev->spi, payload_ready)) { retval = wait_event_interruptible(dev->fifo_wait_queue, dev->free_in_fifo < FIFO_SIZE); - if (retval) goto abort; /* wait was interrupted */ + if (retval) /* wait was interrupted */ + goto abort; } /* need to drop bytes or acquire? */ @@ -447,14 +523,15 @@ pi433_receive(void *data) else bytes_to_read = bytes_total - dev->rx_position; - /* access the fifo */ if (bytes_to_read > FIFO_SIZE - dev->free_in_fifo) bytes_to_read = FIFO_SIZE - dev->free_in_fifo; retval = rf69_read_fifo(spi, &dev->rx_buffer[dev->rx_position], bytes_to_read); - if (retval) goto abort; /* read failed */ + if (retval) /* read failed */ + goto abort; + dev->free_in_fifo += bytes_to_read; /* adjust status vars */ @@ -464,11 +541,11 @@ pi433_receive(void *data) dev->rx_position += bytes_to_read; } - /* rx done, wait was interrupted or error occurred */ abort: dev->interrupt_rx_allowed = true; - SET_CHECKED(rf69_set_mode(dev->spi, standby)); + if (rf69_set_mode(dev->spi, standby)) + pr_err("rf69_set_mode(): radio module failed to go standby\n"); wake_up_interruptible(&dev->tx_wait_queue); if (retval) @@ -481,22 +558,20 @@ static int pi433_tx_thread(void *data) { struct pi433_device *device = data; - struct spi_device *spi = device->spi; /* needed for SET_CHECKED */ + struct spi_device *spi = device->spi; struct pi433_tx_cfg tx_cfg; - u8 *buffer = device->buffer; size_t size; bool rx_interrupted = false; int position, repetitions; int retval; - while (1) - { + while (1) { /* wait for fifo to be populated or for request to terminate*/ dev_dbg(device->dev, "thread: going to wait for new messages"); wait_event_interruptible(device->tx_wait_queue, - ( !kfifo_is_empty(&device->tx_fifo) || - kthread_should_stop() )); - if ( kthread_should_stop() ) + (!kfifo_is_empty(&device->tx_fifo) || + kthread_should_stop())); + if (kthread_should_stop()) return 0; /* get data from fifo in the following order: @@ -508,14 +583,14 @@ pi433_tx_thread(void *data) retval = kfifo_out(&device->tx_fifo, &tx_cfg, sizeof(tx_cfg)); if (retval != sizeof(tx_cfg)) { - dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg) ); + dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg)); mutex_unlock(&device->tx_fifo_lock); continue; } retval = kfifo_out(&device->tx_fifo, &size, sizeof(size_t)); if (retval != sizeof(size_t)) { - dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t) ); + dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t)); mutex_unlock(&device->tx_fifo_lock); continue; } @@ -525,27 +600,27 @@ pi433_tx_thread(void *data) size = tx_cfg.fixed_message_length; /* increase size, if len byte is requested */ - if (tx_cfg.enable_length_byte == optionOn) + if (tx_cfg.enable_length_byte == OPTION_ON) size++; /* increase size, if adr byte is requested */ - if (tx_cfg.enable_address_byte == optionOn) + if (tx_cfg.enable_address_byte == OPTION_ON) size++; /* prime buffer */ - memset(buffer, 0, size); + memset(device->buffer, 0, size); position = 0; /* add length byte, if requested */ - if (tx_cfg.enable_length_byte == optionOn) - buffer[position++] = size-1; /* according to spec length byte itself must be excluded from the length calculation */ + if (tx_cfg.enable_length_byte == OPTION_ON) + device->buffer[position++] = size - 1; /* according to spec length byte itself must be excluded from the length calculation */ /* add adr byte, if requested */ - if (tx_cfg.enable_address_byte == optionOn) - buffer[position++] = tx_cfg.address_byte; + if (tx_cfg.enable_address_byte == OPTION_ON) + device->buffer[position++] = tx_cfg.address_byte; /* finally get message data from fifo */ - retval = kfifo_out(&device->tx_fifo, &buffer[position], sizeof(buffer)-position ); + retval = kfifo_out(&device->tx_fifo, &device->buffer[position], sizeof(device->buffer) - position); dev_dbg(device->dev, "read %d message byte(s) from fifo queue.", retval); mutex_unlock(&device->tx_fifo_lock); @@ -557,7 +632,7 @@ pi433_tx_thread(void *data) */ wait_event_interruptible(device->tx_wait_queue, !device->rx_active || - device->interrupt_rx_allowed == true); + device->interrupt_rx_allowed); /* prevent race conditions * irq will be reenabled after tx config is set @@ -565,91 +640,107 @@ pi433_tx_thread(void *data) disable_irq(device->irq_num[DIO0]); device->tx_active = true; - if (device->rx_active && rx_interrupted == false) - { + if (device->rx_active && !rx_interrupted) { /* rx is currently waiting for a telegram; * we need to set the radio module to standby */ - SET_CHECKED(rf69_set_mode(device->spi, standby)); + retval = rf69_set_mode(device->spi, standby); + if (retval < 0) + return retval; rx_interrupted = true; } /* clear fifo, set fifo threshold, set payload length */ - SET_CHECKED(rf69_set_mode(spi, standby)); /* this clears the fifo */ - SET_CHECKED(rf69_set_fifo_threshold(spi, FIFO_THRESHOLD)); - if (tx_cfg.enable_length_byte == optionOn) - { - SET_CHECKED(rf69_set_payload_length(spi, size * tx_cfg.repetitions)); - } - else - { - SET_CHECKED(rf69_set_payload_length(spi, 0)); + retval = rf69_set_mode(spi, standby); /* this clears the fifo */ + if (retval < 0) + return retval; + retval = rf69_set_fifo_threshold(spi, FIFO_THRESHOLD); + if (retval < 0) + return retval; + if (tx_cfg.enable_length_byte == OPTION_ON) { + retval = rf69_set_payload_length(spi, size * tx_cfg.repetitions); + if (retval < 0) + return retval; + } else { + retval = rf69_set_payload_length(spi, 0); + if (retval < 0) + return retval; } /* configure the rf chip */ - rf69_set_tx_cfg(device, &tx_cfg); + retval = rf69_set_tx_cfg(device, &tx_cfg); + if (retval < 0) + return retval; /* enable fifo level interrupt */ - SET_CHECKED(rf69_set_dio_mapping(spi, DIO1, DIO_FifoLevel)); - device->irq_state[DIO1] = DIO_FifoLevel; + retval = rf69_set_dio_mapping(spi, DIO1, DIO_FIFO_LEVEL); + if (retval < 0) + return retval; + device->irq_state[DIO1] = DIO_FIFO_LEVEL; irq_set_irq_type(device->irq_num[DIO1], IRQ_TYPE_EDGE_FALLING); /* enable packet sent interrupt */ - SET_CHECKED(rf69_set_dio_mapping(spi, DIO0, DIO_PacketSent)); - device->irq_state[DIO0] = DIO_PacketSent; + retval = rf69_set_dio_mapping(spi, DIO0, DIO_PACKET_SENT); + if (retval < 0) + return retval; + device->irq_state[DIO0] = DIO_PACKET_SENT; irq_set_irq_type(device->irq_num[DIO0], IRQ_TYPE_EDGE_RISING); enable_irq(device->irq_num[DIO0]); /* was disabled by rx active check */ /* enable transmission */ - SET_CHECKED(rf69_set_mode(spi, transmit)); + retval = rf69_set_mode(spi, transmit); + if (retval < 0) + return retval; /* transfer this msg (and repetitions) to chip fifo */ device->free_in_fifo = FIFO_SIZE; position = 0; repetitions = tx_cfg.repetitions; - while( (repetitions > 0) && (size > position) ) - { - if ( (size - position) > device->free_in_fifo) - { /* msg to big for fifo - take a part */ + while ((repetitions > 0) && (size > position)) { + if ((size - position) > device->free_in_fifo) { + /* msg to big for fifo - take a part */ int temp = device->free_in_fifo; device->free_in_fifo = 0; rf69_write_fifo(spi, - &buffer[position], - temp); - position +=temp; - } - else - { /* msg fits into fifo - take all */ + &device->buffer[position], + temp); + position += temp; + } else { + /* msg fits into fifo - take all */ device->free_in_fifo -= size; repetitions--; rf69_write_fifo(spi, - &buffer[position], - (size - position) ); + &device->buffer[position], + (size - position)); position = 0; /* reset for next repetition */ } retval = wait_event_interruptible(device->fifo_wait_queue, device->free_in_fifo > 0); - if (retval) { printk("ABORT\n"); goto abort; } + if (retval) { + dev_dbg(device->dev, "ABORT\n"); + goto abort; + } } /* we are done. Wait for packet to get sent */ dev_dbg(device->dev, "thread: wait for packet to get sent/fifo to be empty"); wait_event_interruptible(device->fifo_wait_queue, device->free_in_fifo == FIFO_SIZE || - kthread_should_stop() ); - if ( kthread_should_stop() ) printk("ABORT\n"); - + kthread_should_stop()); + if (kthread_should_stop()) + dev_dbg(device->dev, "ABORT\n"); /* STOP_TRANSMISSION */ dev_dbg(device->dev, "thread: Packet sent. Set mode to stby."); - SET_CHECKED(rf69_set_mode(spi, standby)); + retval = rf69_set_mode(spi, standby); + if (retval < 0) + return retval; /* everything sent? */ if (kfifo_is_empty(&device->tx_fifo)) { abort: - if (rx_interrupted) - { + if (rx_interrupted) { rx_interrupted = false; pi433_start_rx(device); } @@ -678,16 +769,13 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos) /* just one read request at a time */ mutex_lock(&device->rx_lock); - if (device->rx_active) - { + if (device->rx_active) { mutex_unlock(&device->rx_lock); return -EAGAIN; } - else - { - device->rx_active = true; - mutex_unlock(&device->rx_lock); - } + + device->rx_active = true; + mutex_unlock(&device->rx_lock); /* start receiving */ /* will block until something was received*/ @@ -709,14 +797,14 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos) return bytes_received; } - static ssize_t pi433_write(struct file *filp, const char __user *buf, - size_t count, loff_t *f_pos) + size_t count, loff_t *f_pos) { struct pi433_instance *instance; struct pi433_device *device; - int copied, retval; + int retval; + unsigned int copied; instance = filp->private_data; device = instance->device; @@ -732,11 +820,11 @@ pi433_write(struct file *filp, const char __user *buf, */ mutex_lock(&device->tx_fifo_lock); retval = kfifo_in(&device->tx_fifo, &instance->tx_cfg, sizeof(instance->tx_cfg)); - if ( retval != sizeof(instance->tx_cfg) ) + if (retval != sizeof(instance->tx_cfg)) goto abort; - retval = kfifo_in (&device->tx_fifo, &count, sizeof(size_t)); - if ( retval != sizeof(size_t) ) + retval = kfifo_in(&device->tx_fifo, &count, sizeof(size_t)); + if (retval != sizeof(size_t)) goto abort; retval = kfifo_from_user(&device->tx_fifo, buf, count, &copied); @@ -749,7 +837,7 @@ pi433_write(struct file *filp, const char __user *buf, wake_up_interruptible(&device->tx_wait_queue); dev_dbg(device->dev, "write: generated new msg with %d bytes.", copied); - return 0; + return copied; abort: dev_dbg(device->dev, "write to fifo failed: 0x%x", retval); @@ -758,7 +846,6 @@ abort: return -EAGAIN; } - static long pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) { @@ -777,23 +864,23 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) instance = filp->private_data; device = instance->device; - if (device == NULL) + if (!device) return -ESHUTDOWN; switch (cmd) { case PI433_IOC_RD_TX_CFG: if (copy_to_user(argp, &instance->tx_cfg, - sizeof(struct pi433_tx_cfg))) + sizeof(struct pi433_tx_cfg))) return -EFAULT; break; case PI433_IOC_WR_TX_CFG: if (copy_from_user(&instance->tx_cfg, argp, - sizeof(struct pi433_tx_cfg))) + sizeof(struct pi433_tx_cfg))) return -EFAULT; break; case PI433_IOC_RD_RX_CFG: if (copy_to_user(argp, &device->rx_cfg, - sizeof(struct pi433_rx_cfg))) + sizeof(struct pi433_rx_cfg))) return -EFAULT; break; case PI433_IOC_WR_RX_CFG: @@ -806,7 +893,7 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) } if (copy_from_user(&device->rx_cfg, argp, - sizeof(struct pi433_rx_cfg))) { + sizeof(struct pi433_rx_cfg))) { mutex_unlock(&device->rx_lock); return -EFAULT; } @@ -847,10 +934,8 @@ static int pi433_open(struct inode *inode, struct file *filp) if (!device->rx_buffer) { device->rx_buffer = kmalloc(MAX_MSG_SIZE, GFP_KERNEL); - if (!device->rx_buffer) { - dev_dbg(device->dev, "open/ENOMEM\n"); + if (!device->rx_buffer) return -ENOMEM; - } } device->users++; @@ -889,19 +974,18 @@ static int pi433_release(struct inode *inode, struct file *filp) if (!device->users) { kfree(device->rx_buffer); device->rx_buffer = NULL; - if (device->spi == NULL) + if (!device->spi) kfree(device); } return 0; } - /*-------------------------------------------------------------------------*/ static int setup_GPIOs(struct pi433_device *device) { - char name[5]; + char name[5]; int retval; int i; const irq_handler_t DIO_irq_handler[NUM_DIO] = { @@ -909,8 +993,7 @@ static int setup_GPIOs(struct pi433_device *device) DIO1_irq_handler }; - for (i=0; i<NUM_DIO; i++) - { + for (i = 0; i < NUM_DIO; i++) { /* "construct" name and get the gpio descriptor */ snprintf(name, sizeof(name), "DIO%d", i); device->gpiod[i] = gpiod_get(&device->spi->dev, name, 0 /*GPIOD_IN*/); @@ -923,24 +1006,21 @@ static int setup_GPIOs(struct pi433_device *device) if (device->gpiod[i] == ERR_PTR(-EBUSY)) dev_dbg(&device->spi->dev, "%s is busy.", name); - if ( IS_ERR(device->gpiod[i]) ) - { + if (IS_ERR(device->gpiod[i])) { retval = PTR_ERR(device->gpiod[i]); /* release already allocated gpios */ - for (i--; i>=0; i--) - { + for (i--; i >= 0; i--) { free_irq(device->irq_num[i], device); gpiod_put(device->gpiod[i]); } return retval; } - /* configure the pin */ gpiod_unexport(device->gpiod[i]); retval = gpiod_direction_input(device->gpiod[i]); - if (retval) return retval; - + if (retval) + return retval; /* configure irq */ device->irq_num[i] = gpiod_to_irq(device->gpiod[i]); @@ -967,16 +1047,14 @@ static void free_GPIOs(struct pi433_device *device) { int i; - for (i=0; i<NUM_DIO; i++) - { + for (i = 0; i < NUM_DIO; i++) { /* check if gpiod is valid */ - if ( IS_ERR(device->gpiod[i]) ) + if (IS_ERR(device->gpiod[i])) continue; free_irq(device->irq_num[i], device); gpiod_put(device->gpiod[i]); } - return; } static int pi433_get_minor(struct pi433_device *device) @@ -989,7 +1067,7 @@ static int pi433_get_minor(struct pi433_device *device) device->minor = retval; retval = 0; } else if (retval == -ENOSPC) { - dev_err(device->dev, "too many pi433 devices\n"); + dev_err(&device->spi->dev, "too many pi433 devices\n"); retval = -EINVAL; } mutex_unlock(&minor_lock); @@ -1002,6 +1080,7 @@ static void pi433_free_minor(struct pi433_device *dev) idr_remove(&pi433_idr, dev->minor); mutex_unlock(&minor_lock); } + /*-------------------------------------------------------------------------*/ static const struct file_operations pi433_fops = { @@ -1032,17 +1111,14 @@ static int pi433_probe(struct spi_device *spi) /* spi->max_speed_hz = 10000000; 1MHz already set by device tree overlay */ retval = spi_setup(spi); - if (retval) - { + if (retval) { dev_dbg(&spi->dev, "configuration of SPI interface failed!\n"); return retval; } - else - { - dev_dbg(&spi->dev, - "spi interface setup: mode 0x%2x, %d bits per word, %dhz max speed", - spi->mode, spi->bits_per_word, spi->max_speed_hz); - } + + dev_dbg(&spi->dev, + "spi interface setup: mode 0x%2x, %d bits per word, %dhz max speed", + spi->mode, spi->bits_per_word, spi->max_speed_hz); /* Ping the chip by reading the version register */ retval = spi_w8r8(spi, 0x10); @@ -1089,27 +1165,32 @@ static int pi433_probe(struct spi_device *spi) } /* setup the radio module */ - SET_CHECKED(rf69_set_mode (spi, standby)); - SET_CHECKED(rf69_set_data_mode (spi, packet)); - SET_CHECKED(rf69_set_amplifier_0 (spi, optionOn)); - SET_CHECKED(rf69_set_amplifier_1 (spi, optionOff)); - SET_CHECKED(rf69_set_amplifier_2 (spi, optionOff)); - SET_CHECKED(rf69_set_output_power_level (spi, 13)); - SET_CHECKED(rf69_set_antenna_impedance (spi, fiftyOhm)); - - /* start tx thread */ - device->tx_task_struct = kthread_run(pi433_tx_thread, - device, - "pi433_tx_task"); - if (IS_ERR(device->tx_task_struct)) { - dev_dbg(device->dev, "start of send thread failed"); - goto send_thread_failed; - } + retval = rf69_set_mode(spi, standby); + if (retval < 0) + goto minor_failed; + retval = rf69_set_data_mode(spi, DATAMODUL_MODE_PACKET); + if (retval < 0) + goto minor_failed; + retval = rf69_enable_amplifier(spi, MASK_PALEVEL_PA0); + if (retval < 0) + goto minor_failed; + retval = rf69_disable_amplifier(spi, MASK_PALEVEL_PA1); + if (retval < 0) + goto minor_failed; + retval = rf69_disable_amplifier(spi, MASK_PALEVEL_PA2); + if (retval < 0) + goto minor_failed; + retval = rf69_set_output_power_level(spi, 13); + if (retval < 0) + goto minor_failed; + retval = rf69_set_antenna_impedance(spi, fiftyOhm); + if (retval < 0) + goto minor_failed; /* determ minor number */ retval = pi433_get_minor(device); if (retval) { - dev_dbg(device->dev, "get of minor number failed"); + dev_dbg(&spi->dev, "get of minor number failed"); goto minor_failed; } @@ -1119,19 +1200,29 @@ static int pi433_probe(struct spi_device *spi) &spi->dev, device->devt, device, - "pi433"); + "pi433.%d", + device->minor); if (IS_ERR(device->dev)) { pr_err("pi433: device register failed\n"); retval = PTR_ERR(device->dev); goto device_create_failed; - } - else { + } else { dev_dbg(device->dev, "created device for major %d, minor %d\n", MAJOR(pi433_dev), device->minor); } + /* start tx thread */ + device->tx_task_struct = kthread_run(pi433_tx_thread, + device, + "pi433.%d_tx_task", + device->minor); + if (IS_ERR(device->tx_task_struct)) { + dev_dbg(device->dev, "start of send thread failed"); + goto send_thread_failed; + } + /* create cdev */ device->cdev = cdev_alloc(); device->cdev->owner = THIS_MODULE; @@ -1148,12 +1239,12 @@ static int pi433_probe(struct spi_device *spi) return 0; cdev_failed: + kthread_stop(device->tx_task_struct); +send_thread_failed: device_destroy(pi433_class, device->devt); device_create_failed: pi433_free_minor(device); minor_failed: - kthread_stop(device->tx_task_struct); -send_thread_failed: free_GPIOs(device); GPIO_failed: kfree(device); @@ -1230,14 +1321,16 @@ static int __init pi433_init(void) pi433_class = class_create(THIS_MODULE, "pi433"); if (IS_ERR(pi433_class)) { - unregister_chrdev(MAJOR(pi433_dev), pi433_spi_driver.driver.name); + unregister_chrdev(MAJOR(pi433_dev), + pi433_spi_driver.driver.name); return PTR_ERR(pi433_class); } status = spi_register_driver(&pi433_spi_driver); if (status < 0) { class_destroy(pi433_class); - unregister_chrdev(MAJOR(pi433_dev), pi433_spi_driver.driver.name); + unregister_chrdev(MAJOR(pi433_dev), + pi433_spi_driver.driver.name); } return status; diff --git a/drivers/staging/pi433/pi433_if.h b/drivers/staging/pi433/pi433_if.h index e6ed3cd9b2e2..7314f69af198 100644 --- a/drivers/staging/pi433/pi433_if.h +++ b/drivers/staging/pi433/pi433_if.h @@ -34,8 +34,10 @@ /*---------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------*/ +enum option_on_off { + OPTION_OFF, + OPTION_ON +}; /* IOCTL structs and commands */ @@ -57,14 +59,13 @@ * * NOTE: struct layout is the same in 64bit and 32bit userspace. */ -#define PI433_TX_CFG_IOCTL_NR 0 -struct pi433_tx_cfg -{ +#define PI433_TX_CFG_IOCTL_NR 0 +struct pi433_tx_cfg { __u32 frequency; __u16 bit_rate; __u32 dev_frequency; enum modulation modulation; - enum modShaping modShaping; + enum mod_shaping mod_shaping; enum paRamp pa_ramp; @@ -72,13 +73,12 @@ struct pi433_tx_cfg __u16 repetitions; - /* packet format */ - enum optionOnOff enable_preamble; - enum optionOnOff enable_sync; - enum optionOnOff enable_length_byte; - enum optionOnOff enable_address_byte; - enum optionOnOff enable_crc; + enum option_on_off enable_preamble; + enum option_on_off enable_sync; + enum option_on_off enable_length_byte; + enum option_on_off enable_address_byte; + enum option_on_off enable_crc; __u16 preamble_length; __u8 sync_length; @@ -88,7 +88,6 @@ struct pi433_tx_cfg __u8 address_byte; }; - /** * struct pi433_rx_config - describes the configuration of the radio module for sending * @frequency: @@ -107,7 +106,7 @@ struct pi433_tx_cfg * * NOTE: struct layout is the same in 64bit and 32bit userspace. */ -#define PI433_RX_CFG_IOCTL_NR 1 +#define PI433_RX_CFG_IOCTL_NR 1 struct pi433_rx_cfg { __u32 frequency; __u16 bit_rate; @@ -116,20 +115,18 @@ struct pi433_rx_cfg { enum modulation modulation; __u8 rssi_threshold; - enum thresholdDecrement thresholdDecrement; + enum thresholdDecrement threshold_decrement; enum antennaImpedance antenna_impedance; enum lnaGain lna_gain; enum mantisse bw_mantisse; /* normal: 0x50 */ __u8 bw_exponent; /* during AFC: 0x8b */ enum dagc dagc; - - /* packet format */ - enum optionOnOff enable_sync; - enum optionOnOff enable_length_byte; /* should be used in combination with sync, only */ + enum option_on_off enable_sync; + enum option_on_off enable_length_byte; /* should be used in combination with sync, only */ enum addressFiltering enable_address_filtering; /* operational with sync, only */ - enum optionOnOff enable_crc; /* only operational, if sync on and fixed length or length byte is used */ + enum option_on_off enable_crc; /* only operational, if sync on and fixed length or length byte is used */ __u8 sync_length; __u8 fixed_message_length; @@ -140,7 +137,6 @@ struct pi433_rx_cfg { __u8 broadcast_address; }; - #define PI433_IOC_MAGIC 'r' #define PI433_IOC_RD_TX_CFG _IOR(PI433_IOC_MAGIC, PI433_TX_CFG_IOCTL_NR, char[sizeof(struct pi433_tx_cfg)]) diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c index 12c9df9cddde..7ccdff6ae213 100644 --- a/drivers/staging/pi433/rf69.c +++ b/drivers/staging/pi433/rf69.c @@ -29,27 +29,98 @@ #include "rf69_registers.h" #define F_OSC 32000000 /* in Hz */ -#define FIFO_SIZE 66 /* in byte */ +#define FIFO_SIZE 66 /* in byte */ /*-------------------------------------------------------------------------*/ -#define READ_REG(x) rf69_read_reg (spi, x) -#define WRITE_REG(x, y) rf69_write_reg(spi, x, y) +static u8 rf69_read_reg(struct spi_device *spi, u8 addr) +{ + int retval; + + retval = spi_w8r8(spi, addr); + +#ifdef DEBUG_VALUES + if (retval < 0) + /* should never happen, since we already checked, + * that module is connected. Therefore no error + * handling, just an optional error message... + */ + dev_dbg(&spi->dev, "read 0x%x FAILED\n", addr); + else + dev_dbg(&spi->dev, "read 0x%x from reg 0x%x\n", retval, addr); +#endif + + return retval; +} + +static int rf69_write_reg(struct spi_device *spi, u8 addr, u8 value) +{ + int retval; + char buffer[2]; + + buffer[0] = addr | WRITE_BIT; + buffer[1] = value; + + retval = spi_write(spi, &buffer, 2); + +#ifdef DEBUG_VALUES + if (retval < 0) + /* should never happen, since we already checked, + * that module is connected. Therefore no error + * handling, just an optional error message... + */ + dev_dbg(&spi->dev, "write 0x%x to 0x%x FAILED\n", value, addr); + else + dev_dbg(&spi->dev, "wrote 0x%x to reg 0x%x\n", value, addr); +#endif + + return retval; +} /*-------------------------------------------------------------------------*/ -int rf69_set_mode(struct spi_device *spi, enum mode mode) +static int rf69_set_bit(struct spi_device *spi, u8 reg, u8 mask) +{ + u8 tmp; + + tmp = rf69_read_reg(spi, reg); + tmp = tmp | mask; + return rf69_write_reg(spi, reg, tmp); +} + +static int rf69_clear_bit(struct spi_device *spi, u8 reg, u8 mask) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: mode"); - #endif + u8 tmp; + tmp = rf69_read_reg(spi, reg); + tmp = tmp & ~mask; + return rf69_write_reg(spi, reg, tmp); +} + +static inline int rf69_read_mod_write(struct spi_device *spi, u8 reg, u8 mask, u8 value) +{ + u8 tmp; + + tmp = rf69_read_reg(spi, reg); + tmp = (tmp & ~mask) | value; + return rf69_write_reg(spi, reg, tmp); +} + +/*-------------------------------------------------------------------------*/ + +int rf69_set_mode(struct spi_device *spi, enum mode mode) +{ switch (mode) { - case transmit: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_TRANSMIT); - case receive: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_RECEIVE); - case synthesizer: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_SYNTHESIZER); - case standby: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_STANDBY); - case mode_sleep: return WRITE_REG(REG_OPMODE, (READ_REG(REG_OPMODE) & ~MASK_OPMODE_MODE) | OPMODE_MODE_SLEEP); + case transmit: + return rf69_read_mod_write(spi, REG_OPMODE, MASK_OPMODE_MODE, OPMODE_MODE_TRANSMIT); + case receive: + return rf69_read_mod_write(spi, REG_OPMODE, MASK_OPMODE_MODE, OPMODE_MODE_RECEIVE); + case synthesizer: + return rf69_read_mod_write(spi, REG_OPMODE, MASK_OPMODE_MODE, OPMODE_MODE_SYNTHESIZER); + case standby: + return rf69_read_mod_write(spi, REG_OPMODE, MASK_OPMODE_MODE, OPMODE_MODE_STANDBY); + case mode_sleep: + return rf69_read_mod_write(spi, REG_OPMODE, MASK_OPMODE_MODE, OPMODE_MODE_SLEEP); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -58,82 +129,75 @@ int rf69_set_mode(struct spi_device *spi, enum mode mode) // we are using packet mode, so this check is not really needed // but waiting for mode ready is necessary when going from sleep because the FIFO may not be immediately available from previous mode //while (_mode == RF69_MODE_SLEEP && (READ_REG(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00); // Wait for ModeReady - } -int rf69_set_data_mode(struct spi_device *spi, enum dataMode dataMode) +int rf69_set_data_mode(struct spi_device *spi, u8 data_mode) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: data mode"); - #endif - - switch (dataMode) { - case packet: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | DATAMODUL_MODE_PACKET); - case continuous: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | DATAMODUL_MODE_CONTINUOUS); - case continuousNoSync: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODE) | DATAMODUL_MODE_CONTINUOUS_NOSYNC); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODE, data_mode); } int rf69_set_modulation(struct spi_device *spi, enum modulation modulation) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: modulation"); - #endif - switch (modulation) { - case OOK: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_TYPE) | DATAMODUL_MODULATION_TYPE_OOK); - case FSK: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_TYPE) | DATAMODUL_MODULATION_TYPE_FSK); + case OOK: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_TYPE, DATAMODUL_MODULATION_TYPE_OOK); + case FSK: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_TYPE, DATAMODUL_MODULATION_TYPE_FSK); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } } -enum modulation rf69_get_modulation(struct spi_device *spi) +static enum modulation rf69_get_modulation(struct spi_device *spi) { u8 currentValue; - #ifdef DEBUG - dev_dbg(&spi->dev, "get: mode"); - #endif - - currentValue = READ_REG(REG_DATAMODUL); + currentValue = rf69_read_reg(spi, REG_DATAMODUL); switch (currentValue & MASK_DATAMODUL_MODULATION_TYPE) { - case DATAMODUL_MODULATION_TYPE_OOK: return OOK; - case DATAMODUL_MODULATION_TYPE_FSK: return FSK; - default: return undefined; + case DATAMODUL_MODULATION_TYPE_OOK: + return OOK; + case DATAMODUL_MODULATION_TYPE_FSK: + return FSK; + default: + return UNDEF; } } -int rf69_set_modulation_shaping(struct spi_device *spi, enum modShaping modShaping) +int rf69_set_modulation_shaping(struct spi_device *spi, + enum mod_shaping mod_shaping) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: mod shaping"); - #endif - - if (rf69_get_modulation(spi) == FSK) { - switch (modShaping) { - case shapingOff: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_NONE); - case shaping1_0: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_1_0); - case shaping0_5: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_0_3); - case shaping0_3: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_0_5); + switch (rf69_get_modulation(spi)) { + case FSK: + switch (mod_shaping) { + case SHAPING_OFF: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_NONE); + case SHAPING_1_0: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_1_0); + case SHAPING_0_5: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_0_5); + case SHAPING_0_3: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_0_3); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } - } else { - switch (modShaping) { - case shapingOff: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_NONE); - case shapingBR: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_BR); - case shaping2BR: return WRITE_REG(REG_DATAMODUL, (READ_REG(REG_DATAMODUL) & ~MASK_DATAMODUL_MODULATION_SHAPE) | DATAMODUL_MODULATION_SHAPE_2BR); + case OOK: + switch (mod_shaping) { + case SHAPING_OFF: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_NONE); + case SHAPING_BR: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_BR); + case SHAPING_2BR: + return rf69_read_mod_write(spi, REG_DATAMODUL, MASK_DATAMODUL_MODULATION_SHAPE, DATAMODUL_MODULATION_SHAPE_2BR); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } + default: + dev_dbg(&spi->dev, "set: modulation undefined"); + return -EINVAL; } } @@ -145,10 +209,6 @@ int rf69_set_bit_rate(struct spi_device *spi, u16 bitRate) u8 msb; u8 lsb; - #ifdef DEBUG - dev_dbg(&spi->dev, "set: bit rate"); - #endif - // check input value bitRate_min = F_OSC / 8388608; // 8388608 = 2^23; if (bitRate < bitRate_min) { @@ -159,15 +219,14 @@ int rf69_set_bit_rate(struct spi_device *spi, u16 bitRate) // calculate reg settings bitRate_reg = (F_OSC / bitRate); - msb = (bitRate_reg&0xff00) >> 8; - lsb = (bitRate_reg&0xff); + msb = (bitRate_reg & 0xff00) >> 8; + lsb = (bitRate_reg & 0xff); // transmit to RF 69 - retval = WRITE_REG(REG_BITRATE_MSB, msb); + retval = rf69_write_reg(spi, REG_BITRATE_MSB, msb); if (retval) return retval; - - retval = WRITE_REG(REG_BITRATE_LSB, lsb); + retval = rf69_write_reg(spi, REG_BITRATE_LSB, lsb); if (retval) return retval; @@ -177,18 +236,14 @@ int rf69_set_bit_rate(struct spi_device *spi, u16 bitRate) int rf69_set_deviation(struct spi_device *spi, u32 deviation) { int retval; -// u32 f_max; TODO: Abhängigkeit von Bitrate beachten!! u64 f_reg; u64 f_step; u8 msb; u8 lsb; u64 factor = 1000000; // to improve precision of calculation - #ifdef DEBUG - dev_dbg(&spi->dev, "set: deviation"); - #endif - - if (deviation < 600 || deviation > 500000) { //TODO: Abhängigkeit von Bitrate beachten!! + // TODO: Dependency to bitrate + if (deviation < 600 || deviation > 500000) { dev_dbg(&spi->dev, "set_deviation: illegal input param"); return -EINVAL; } @@ -201,8 +256,8 @@ int rf69_set_deviation(struct spi_device *spi, u32 deviation) f_reg = deviation * factor; do_div(f_reg, f_step); - msb = (f_reg&0xff00) >> 8; - lsb = (f_reg&0xff); + msb = (f_reg & 0xff00) >> 8; + lsb = (f_reg & 0xff); // check msb if (msb & ~FDEVMASB_MASK) { @@ -211,11 +266,10 @@ int rf69_set_deviation(struct spi_device *spi, u32 deviation) } // write to chip - retval = WRITE_REG(REG_FDEV_MSB, msb); + retval = rf69_write_reg(spi, REG_FDEV_MSB, msb); if (retval) return retval; - - retval = WRITE_REG(REG_FDEV_LSB, lsb); + retval = rf69_write_reg(spi, REG_FDEV_LSB, lsb); if (retval) return retval; @@ -233,10 +287,6 @@ int rf69_set_frequency(struct spi_device *spi, u32 frequency) u8 lsb; u64 factor = 1000000; // to improve precision of calculation - #ifdef DEBUG - dev_dbg(&spi->dev, "set: frequency"); - #endif - // calculat f step f_step = F_OSC * factor; do_div(f_step, 524288); // 524288 = 2^19 @@ -252,78 +302,38 @@ int rf69_set_frequency(struct spi_device *spi, u32 frequency) f_reg = frequency * factor; do_div(f_reg, f_step); - msb = (f_reg&0xff0000) >> 16; - mid = (f_reg&0xff00) >> 8; - lsb = (f_reg&0xff); + msb = (f_reg & 0xff0000) >> 16; + mid = (f_reg & 0xff00) >> 8; + lsb = (f_reg & 0xff); // write to chip - retval = WRITE_REG(REG_FRF_MSB, msb); + retval = rf69_write_reg(spi, REG_FRF_MSB, msb); if (retval) return retval; - - retval = WRITE_REG(REG_FRF_MID, mid); + retval = rf69_write_reg(spi, REG_FRF_MID, mid); if (retval) return retval; - - retval = WRITE_REG(REG_FRF_LSB, lsb); + retval = rf69_write_reg(spi, REG_FRF_LSB, lsb); if (retval) return retval; return 0; } -int rf69_set_amplifier_0(struct spi_device *spi, enum optionOnOff optionOnOff) +int rf69_enable_amplifier(struct spi_device *spi, u8 amplifier_mask) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: amp #0"); - #endif - - switch (optionOnOff) { - case optionOn: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) | MASK_PALEVEL_PA0)); - case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA0)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } -} - -int rf69_set_amplifier_1(struct spi_device *spi, enum optionOnOff optionOnOff) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: amp #1"); - #endif - - switch (optionOnOff) { - case optionOn: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) | MASK_PALEVEL_PA1)); - case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA1)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } + return rf69_set_bit(spi, REG_PALEVEL, amplifier_mask); } -int rf69_set_amplifier_2(struct spi_device *spi, enum optionOnOff optionOnOff) +int rf69_disable_amplifier(struct spi_device *spi, u8 amplifier_mask) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: amp #2"); - #endif - - switch (optionOnOff) { - case optionOn: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) | MASK_PALEVEL_PA2)); - case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA2)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } + return rf69_clear_bit(spi, REG_PALEVEL, amplifier_mask); } int rf69_set_output_power_level(struct spi_device *spi, u8 powerLevel) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: power level"); - #endif - - powerLevel += 18; // TODO Abhängigkeit von PA0,1,2 setting + // TODO: Dependency to PA0,1,2 setting + powerLevel += 18; // check input value if (powerLevel > 0x1f) { @@ -332,32 +342,44 @@ int rf69_set_output_power_level(struct spi_device *spi, u8 powerLevel) } // write value - return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_OUTPUT_POWER) | powerLevel); + return rf69_read_mod_write(spi, REG_PALEVEL, MASK_PALEVEL_OUTPUT_POWER, powerLevel); } int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: pa ramp"); - #endif - switch (paRamp) { - case ramp3400: return WRITE_REG(REG_PARAMP, PARAMP_3400); - case ramp2000: return WRITE_REG(REG_PARAMP, PARAMP_2000); - case ramp1000: return WRITE_REG(REG_PARAMP, PARAMP_1000); - case ramp500: return WRITE_REG(REG_PARAMP, PARAMP_500); - case ramp250: return WRITE_REG(REG_PARAMP, PARAMP_250); - case ramp125: return WRITE_REG(REG_PARAMP, PARAMP_125); - case ramp100: return WRITE_REG(REG_PARAMP, PARAMP_100); - case ramp62: return WRITE_REG(REG_PARAMP, PARAMP_62); - case ramp50: return WRITE_REG(REG_PARAMP, PARAMP_50); - case ramp40: return WRITE_REG(REG_PARAMP, PARAMP_40); - case ramp31: return WRITE_REG(REG_PARAMP, PARAMP_31); - case ramp25: return WRITE_REG(REG_PARAMP, PARAMP_25); - case ramp20: return WRITE_REG(REG_PARAMP, PARAMP_20); - case ramp15: return WRITE_REG(REG_PARAMP, PARAMP_15); - case ramp12: return WRITE_REG(REG_PARAMP, PARAMP_12); - case ramp10: return WRITE_REG(REG_PARAMP, PARAMP_10); + case ramp3400: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_3400); + case ramp2000: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_2000); + case ramp1000: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_1000); + case ramp500: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_500); + case ramp250: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_250); + case ramp125: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_125); + case ramp100: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_100); + case ramp62: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_62); + case ramp50: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_50); + case ramp40: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_40); + case ramp31: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_31); + case ramp25: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_25); + case ramp20: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_20); + case ramp15: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_15); + case ramp12: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_12); + case ramp10: + return rf69_write_reg(spi, REG_PARAMP, PARAMP_10); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -366,13 +388,11 @@ int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp) int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance antennaImpedance) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: antenna impedance"); - #endif - switch (antennaImpedance) { - case fiftyOhm: return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) & ~MASK_LNA_ZIN)); - case twohundretOhm: return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) | MASK_LNA_ZIN)); + case fiftyOhm: + return rf69_clear_bit(spi, REG_LNA, MASK_LNA_ZIN); + case twohundretOhm: + return rf69_set_bit(spi, REG_LNA, MASK_LNA_ZIN); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -381,81 +401,27 @@ int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance ant int rf69_set_lna_gain(struct spi_device *spi, enum lnaGain lnaGain) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: lna gain"); - #endif - switch (lnaGain) { - case automatic: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_AUTO)); - case max: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX)); - case maxMinus6: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_6)); - case maxMinus12: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_12)); - case maxMinus24: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_24)); - case maxMinus36: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_36)); - case maxMinus48: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_48)); + case automatic: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_AUTO); + case max: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_MAX); + case max_minus_6: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_MAX_MINUS_6); + case max_minus_12: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_MAX_MINUS_12); + case max_minus_24: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_MAX_MINUS_24); + case max_minus_36: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_MAX_MINUS_36); + case max_minus_48: + return rf69_read_mod_write(spi, REG_LNA, MASK_LNA_GAIN, LNA_GAIN_MAX_MINUS_48); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } } -enum lnaGain rf69_get_lna_gain(struct spi_device *spi) -{ - u8 currentValue; - - #ifdef DEBUG - dev_dbg(&spi->dev, "get: lna gain"); - #endif - - currentValue = READ_REG(REG_LNA); - - switch (currentValue & MASK_LNA_CURRENT_GAIN >> 3) { // improvement: change 3 to define - case LNA_GAIN_AUTO: return automatic; - case LNA_GAIN_MAX: return max; - case LNA_GAIN_MAX_MINUS_6: return maxMinus6; - case LNA_GAIN_MAX_MINUS_12: return maxMinus12; - case LNA_GAIN_MAX_MINUS_24: return maxMinus24; - case LNA_GAIN_MAX_MINUS_36: return maxMinus36; - case LNA_GAIN_MAX_MINUS_48: return maxMinus48; - default: return undefined; - } -} - -int rf69_set_dc_cut_off_frequency_intern(struct spi_device *spi, u8 reg, enum dccPercent dccPercent) -{ - switch (dccPercent) { - case dcc16Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_16_PERCENT)); - case dcc8Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_8_PERCENT)); - case dcc4Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_4_PERCENT)); - case dcc2Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_2_PERCENT)); - case dcc1Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_1_PERCENT)); - case dcc0_5Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_5_PERCENT)); - case dcc0_25Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_25_PERCENT)); - case dcc0_125Percent: return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_125_PERCENT)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } -} - -int rf69_set_dc_cut_off_frequency(struct spi_device *spi, enum dccPercent dccPercent) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: cut off freq"); - #endif - - return rf69_set_dc_cut_off_frequency_intern(spi, REG_RXBW, dccPercent); -} - -int rf69_set_dc_cut_off_frequency_during_afc(struct spi_device *spi, enum dccPercent dccPercent) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: cut off freq during afc"); - #endif - - return rf69_set_dc_cut_off_frequency_intern(spi, REG_AFCBW, dccPercent); -} - static int rf69_set_bandwidth_intern(struct spi_device *spi, u8 reg, enum mantisse mantisse, u8 exponent) { @@ -475,7 +441,7 @@ static int rf69_set_bandwidth_intern(struct spi_device *spi, u8 reg, } // read old value - newValue = READ_REG(reg); + newValue = rf69_read_reg(spi, reg); // "delete" mantisse and exponent = just keep the DCC setting newValue = newValue & MASK_BW_DCC_FREQ; @@ -497,79 +463,38 @@ static int rf69_set_bandwidth_intern(struct spi_device *spi, u8 reg, newValue = newValue | exponent; // write back - return WRITE_REG(reg, newValue); + return rf69_write_reg(spi, reg, newValue); } int rf69_set_bandwidth(struct spi_device *spi, enum mantisse mantisse, u8 exponent) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: band width"); - #endif - return rf69_set_bandwidth_intern(spi, REG_RXBW, mantisse, exponent); } int rf69_set_bandwidth_during_afc(struct spi_device *spi, enum mantisse mantisse, u8 exponent) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: band width during afc"); - #endif - return rf69_set_bandwidth_intern(spi, REG_AFCBW, mantisse, exponent); } -int rf69_set_ook_threshold_type(struct spi_device *spi, enum thresholdType thresholdType) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: threshold type"); - #endif - - switch (thresholdType) { - case fixed: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_FIXED)); - case peak: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_PEAK)); - case average: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_AVERAGE)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } -} - -int rf69_set_ook_threshold_step(struct spi_device *spi, enum thresholdStep thresholdStep) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: threshold step"); - #endif - - switch (thresholdStep) { - case step_0_5db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_0_5_DB)); - case step_1_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_1_0_DB)); - case step_1_5db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_1_5_DB)); - case step_2_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_2_0_DB)); - case step_3_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_3_0_DB)); - case step_4_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_4_0_DB)); - case step_5_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_5_0_DB)); - case step_6_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_6_0_DB)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } -} - int rf69_set_ook_threshold_dec(struct spi_device *spi, enum thresholdDecrement thresholdDecrement) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: threshold decrement"); - #endif - switch (thresholdDecrement) { - case dec_every8th: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_8TH)); - case dec_every4th: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_4TH)); - case dec_every2nd: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_2ND)); - case dec_once: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_ONCE)); - case dec_twice: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_TWICE)); - case dec_4times: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_4_TIMES)); - case dec_8times: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_8_TIMES)); - case dec_16times: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_16_TIMES)); + case dec_every8th: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_EVERY_8TH); + case dec_every4th: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_EVERY_4TH); + case dec_every2nd: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_EVERY_2ND); + case dec_once: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_ONCE); + case dec_twice: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_TWICE); + case dec_4times: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_4_TIMES); + case dec_8times: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_8_TIMES); + case dec_16times: + return rf69_read_mod_write(spi, REG_OOKPEAK, MASK_OOKPEAK_THRESDEC, OOKPEAK_THRESHDEC_16_TIMES); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -583,10 +508,6 @@ int rf69_set_dio_mapping(struct spi_device *spi, u8 DIONumber, u8 value) u8 regaddr; u8 regValue; - #ifdef DEBUG - dev_dbg(&spi->dev, "set: DIO mapping"); - #endif - switch (DIONumber) { case 0: mask = MASK_DIO0; shift = SHIFT_DIO0; regaddr = REG_DIOMAPPING1; @@ -607,95 +528,66 @@ int rf69_set_dio_mapping(struct spi_device *spi, u8 DIONumber, u8 value) mask = MASK_DIO5; shift = SHIFT_DIO5; regaddr = REG_DIOMAPPING2; break; default: - dev_dbg(&spi->dev, "set: illegal input param"); + dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } // read reg - regValue = READ_REG(regaddr); + regValue = rf69_read_reg(spi, regaddr); // delete old value regValue = regValue & ~mask; // add new value regValue = regValue | value << shift; // write back - return WRITE_REG(regaddr, regValue); + return rf69_write_reg(spi, regaddr, regValue); } bool rf69_get_flag(struct spi_device *spi, enum flag flag) { - #ifdef DEBUG - dev_dbg(&spi->dev, "get: flag"); - #endif - - switch (flag) { - case modeSwitchCompleted: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_MODE_READY); - case readyToReceive: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_RX_READY); - case readyToSend: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_TX_READY); - case pllLocked: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_PLL_LOCK); - case rssiExceededThreshold: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_RSSI); - case timeout: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_TIMEOUT); - case automode: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_AUTOMODE); - case syncAddressMatch: return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH); - case fifoFull: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_FULL); -/* case fifoNotEmpty: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_NOT_EMPTY); */ - case fifoEmpty: return !(READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_NOT_EMPTY); - case fifoLevelBelowThreshold: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_LEVEL); - case fifoOverrun: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_OVERRUN); - case packetSent: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_PACKET_SENT); - case payloadReady: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_PAYLOAD_READY); - case crcOk: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_CRC_OK); - case batteryLow: return (READ_REG(REG_IRQFLAGS2) & MASK_IRQFLAGS2_LOW_BAT); - default: return false; - } -} - -int rf69_reset_flag(struct spi_device *spi, enum flag flag) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "reset: flag"); - #endif - switch (flag) { - case rssiExceededThreshold: return WRITE_REG(REG_IRQFLAGS1, MASK_IRQFLAGS1_RSSI); - case syncAddressMatch: return WRITE_REG(REG_IRQFLAGS1, MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH); - case fifoOverrun: return WRITE_REG(REG_IRQFLAGS2, MASK_IRQFLAGS2_FIFO_OVERRUN); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; + case modeSwitchCompleted: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_MODE_READY); + case readyToReceive: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_RX_READY); + case readyToSend: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_TX_READY); + case pllLocked: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_PLL_LOCK); + case rssiExceededThreshold: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_RSSI); + case timeout: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_TIMEOUT); + case automode: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_AUTOMODE); + case syncAddressMatch: + return (rf69_read_reg(spi, REG_IRQFLAGS1) & MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH); + case fifo_full: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_FULL); +/* case fifo_not_empty: + * return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_NOT_EMPTY); */ + case fifo_empty: + return !(rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_NOT_EMPTY); + case fifo_level_below_threshold: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_LEVEL); + case fifo_overrun: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_FIFO_OVERRUN); + case packetSent: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_PACKET_SENT); + case payload_ready: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_PAYLOAD_READY); + case crcOk: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_CRC_OK); + case batteryLow: + return (rf69_read_reg(spi, REG_IRQFLAGS2) & MASK_IRQFLAGS2_LOW_BAT); + default: return false; } } int rf69_set_rssi_threshold(struct spi_device *spi, u8 threshold) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: rssi threshold"); - #endif - /* no value check needed - u8 exactly matches register size */ - return WRITE_REG(REG_RSSITHRESH, threshold); -} - -int rf69_set_rx_start_timeout(struct spi_device *spi, u8 timeout) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: start timeout"); - #endif - - /* no value check needed - u8 exactly matches register size */ - - return WRITE_REG(REG_RXTIMEOUT1, timeout); -} - -int rf69_set_rssi_timeout(struct spi_device *spi, u8 timeout) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: rssi timeout"); - #endif - - /* no value check needed - u8 exactly matches register size */ - - return WRITE_REG(REG_RXTIMEOUT2, timeout); + return rf69_write_reg(spi, REG_RSSITHRESH, threshold); } int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength) @@ -703,47 +595,38 @@ int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength) int retval; u8 msb, lsb; - #ifdef DEBUG - dev_dbg(&spi->dev, "set: preamble length"); - #endif - /* no value check needed - u16 exactly matches register size */ /* calculate reg settings */ - msb = (preambleLength&0xff00) >> 8; - lsb = (preambleLength&0xff); + msb = (preambleLength & 0xff00) >> 8; + lsb = (preambleLength & 0xff); /* transmit to chip */ - retval = WRITE_REG(REG_PREAMBLE_MSB, msb); + retval = rf69_write_reg(spi, REG_PREAMBLE_MSB, msb); if (retval) return retval; - return WRITE_REG(REG_PREAMBLE_LSB, lsb); + retval = rf69_write_reg(spi, REG_PREAMBLE_LSB, lsb); + + return retval; } -int rf69_set_sync_enable(struct spi_device *spi, enum optionOnOff optionOnOff) +int rf69_enable_sync(struct spi_device *spi) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: sync enable"); - #endif - - switch (optionOnOff) { - case optionOn: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) | MASK_SYNC_CONFIG_SYNC_ON)); - case optionOff: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_ON)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } + return rf69_set_bit(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_SYNC_ON); } -int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition fifoFillCondition) +int rf69_disable_sync(struct spi_device *spi) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: fifo fill condition"); - #endif + return rf69_clear_bit(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_SYNC_ON); +} - switch (fifoFillCondition) { - case always: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) | MASK_SYNC_CONFIG_FIFO_FILL_CONDITION)); - case afterSyncInterrupt: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_FIFO_FILL_CONDITION)); +int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifo_fill_condition fifo_fill_condition) +{ + switch (fifo_fill_condition) { + case always: + return rf69_set_bit(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_FIFO_FILL_CONDITION); + case afterSyncInterrupt: + return rf69_clear_bit(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_FIFO_FILL_CONDITION); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -752,10 +635,6 @@ int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition int rf69_set_sync_size(struct spi_device *spi, u8 syncSize) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: sync size"); - #endif - // check input value if (syncSize > 0x07) { dev_dbg(&spi->dev, "set: illegal input param"); @@ -763,136 +642,85 @@ int rf69_set_sync_size(struct spi_device *spi, u8 syncSize) } // write value - return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_SIZE) | (syncSize << 3)); -} - -int rf69_set_sync_tolerance(struct spi_device *spi, u8 syncTolerance) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "set: sync tolerance"); - #endif - - // check input value - if (syncTolerance > 0x07) { - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } - - // write value - return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_SIZE) | syncTolerance); + return rf69_read_mod_write(spi, REG_SYNC_CONFIG, MASK_SYNC_CONFIG_SYNC_SIZE, (syncSize << 3)); } int rf69_set_sync_values(struct spi_device *spi, u8 syncValues[8]) { int retval = 0; - #ifdef DEBUG - dev_dbg(&spi->dev, "set: sync values"); - #endif - - retval += WRITE_REG(REG_SYNCVALUE1, syncValues[0]); - retval += WRITE_REG(REG_SYNCVALUE2, syncValues[1]); - retval += WRITE_REG(REG_SYNCVALUE3, syncValues[2]); - retval += WRITE_REG(REG_SYNCVALUE4, syncValues[3]); - retval += WRITE_REG(REG_SYNCVALUE5, syncValues[4]); - retval += WRITE_REG(REG_SYNCVALUE6, syncValues[5]); - retval += WRITE_REG(REG_SYNCVALUE7, syncValues[6]); - retval += WRITE_REG(REG_SYNCVALUE8, syncValues[7]); + retval += rf69_write_reg(spi, REG_SYNCVALUE1, syncValues[0]); + retval += rf69_write_reg(spi, REG_SYNCVALUE2, syncValues[1]); + retval += rf69_write_reg(spi, REG_SYNCVALUE3, syncValues[2]); + retval += rf69_write_reg(spi, REG_SYNCVALUE4, syncValues[3]); + retval += rf69_write_reg(spi, REG_SYNCVALUE5, syncValues[4]); + retval += rf69_write_reg(spi, REG_SYNCVALUE6, syncValues[5]); + retval += rf69_write_reg(spi, REG_SYNCVALUE7, syncValues[6]); + retval += rf69_write_reg(spi, REG_SYNCVALUE8, syncValues[7]); return retval; } int rf69_set_packet_format(struct spi_device *spi, enum packetFormat packetFormat) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: packet format"); - #endif - switch (packetFormat) { - case packetLengthVar: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) | MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE)); - case packetLengthFix: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE)); + case packetLengthVar: + return rf69_set_bit(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE); + case packetLengthFix: + return rf69_clear_bit(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } } -int rf69_set_crc_enable(struct spi_device *spi, enum optionOnOff optionOnOff) +int rf69_enable_crc(struct spi_device *spi) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: crc enable"); - #endif + return rf69_set_bit(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_CRC_ON); +} - switch (optionOnOff) { - case optionOn: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) | MASK_PACKETCONFIG1_CRC_ON)); - case optionOff: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_CRC_ON)); - default: - dev_dbg(&spi->dev, "set: illegal input param"); - return -EINVAL; - } +int rf69_disable_crc(struct spi_device *spi) +{ + return rf69_clear_bit(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_CRC_ON); } int rf69_set_adressFiltering(struct spi_device *spi, enum addressFiltering addressFiltering) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: address filtering"); - #endif - switch (addressFiltering) { - case filteringOff: return WRITE_REG(REG_PACKETCONFIG1, ((READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_OFF)); - case nodeAddress: return WRITE_REG(REG_PACKETCONFIG1, ((READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODE)); - case nodeOrBroadcastAddress: return WRITE_REG(REG_PACKETCONFIG1, ((READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODEBROADCAST)); + case filteringOff: + return rf69_read_mod_write(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_ADDRESSFILTERING, PACKETCONFIG1_ADDRESSFILTERING_OFF); + case nodeAddress: + return rf69_read_mod_write(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_ADDRESSFILTERING, PACKETCONFIG1_ADDRESSFILTERING_NODE); + case nodeOrBroadcastAddress: + return rf69_read_mod_write(spi, REG_PACKETCONFIG1, MASK_PACKETCONFIG1_ADDRESSFILTERING, PACKETCONFIG1_ADDRESSFILTERING_NODEBROADCAST); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } } -int rf69_set_payload_length(struct spi_device *spi, u8 payloadLength) +int rf69_set_payload_length(struct spi_device *spi, u8 payload_length) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: payload length"); - #endif - - return WRITE_REG(REG_PAYLOAD_LENGTH, payloadLength); -} - -u8 rf69_get_payload_length(struct spi_device *spi) -{ - #ifdef DEBUG - dev_dbg(&spi->dev, "get: payload length"); - #endif - - return (u8) READ_REG(REG_PAYLOAD_LENGTH); + return rf69_write_reg(spi, REG_PAYLOAD_LENGTH, payload_length); } int rf69_set_node_address(struct spi_device *spi, u8 nodeAddress) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: node address"); - #endif - - return WRITE_REG(REG_NODEADRS, nodeAddress); + return rf69_write_reg(spi, REG_NODEADRS, nodeAddress); } int rf69_set_broadcast_address(struct spi_device *spi, u8 broadcastAddress) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: broadcast address"); - #endif - - return WRITE_REG(REG_BROADCASTADRS, broadcastAddress); + return rf69_write_reg(spi, REG_BROADCASTADRS, broadcastAddress); } int rf69_set_tx_start_condition(struct spi_device *spi, enum txStartCondition txStartCondition) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: start condition"); - #endif - switch (txStartCondition) { - case fifoLevel: return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) & ~MASK_FIFO_THRESH_TXSTART)); - case fifoNotEmpty: return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) | MASK_FIFO_THRESH_TXSTART)); + case fifo_level: + return rf69_clear_bit(spi, REG_FIFO_THRESH, MASK_FIFO_THRESH_TXSTART); + case fifo_not_empty: + return rf69_set_bit(spi, REG_FIFO_THRESH, MASK_FIFO_THRESH_TXSTART); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -903,35 +731,32 @@ int rf69_set_fifo_threshold(struct spi_device *spi, u8 threshold) { int retval; - #ifdef DEBUG - dev_dbg(&spi->dev, "set: fifo threshold"); - #endif - - // check input value + /* check input value */ if (threshold & 0x80) { dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; } - // write value - retval = WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) & ~MASK_FIFO_THRESH_VALUE) | threshold); + /* write value */ + retval = rf69_read_mod_write(spi, REG_FIFO_THRESH, MASK_FIFO_THRESH_VALUE, threshold); if (retval) return retval; - // access the fifo to activate new threshold - return rf69_read_fifo(spi, (u8 *)&retval, 1); // retval used as buffer + /* access the fifo to activate new threshold + * retval (mis-) used as buffer here + */ + return rf69_read_fifo(spi, (u8 *)&retval, 1); } int rf69_set_dagc(struct spi_device *spi, enum dagc dagc) { - #ifdef DEBUG - dev_dbg(&spi->dev, "set: dagc"); - #endif - switch (dagc) { - case normalMode: return WRITE_REG(REG_TESTDAGC, DAGC_NORMAL); - case improve: return WRITE_REG(REG_TESTDAGC, DAGC_IMPROVED_LOWBETA0); - case improve4LowModulationIndex: return WRITE_REG(REG_TESTDAGC, DAGC_IMPROVED_LOWBETA1); + case normalMode: + return rf69_write_reg(spi, REG_TESTDAGC, DAGC_NORMAL); + case improve: + return rf69_write_reg(spi, REG_TESTDAGC, DAGC_IMPROVED_LOWBETA0); + case improve4LowModulationIndex: + return rf69_write_reg(spi, REG_TESTDAGC, DAGC_IMPROVED_LOWBETA1); default: dev_dbg(&spi->dev, "set: illegal input param"); return -EINVAL; @@ -940,19 +765,17 @@ int rf69_set_dagc(struct spi_device *spi, enum dagc dagc) /*-------------------------------------------------------------------------*/ -int rf69_read_fifo (struct spi_device *spi, u8 *buffer, unsigned int size) +int rf69_read_fifo(struct spi_device *spi, u8 *buffer, unsigned int size) { - #ifdef DEBUG_FIFO_ACCESS - int i; - #endif +#ifdef DEBUG_FIFO_ACCESS + int i; +#endif struct spi_transfer transfer; u8 local_buffer[FIFO_SIZE + 1]; int retval; if (size > FIFO_SIZE) { - #ifdef DEBUG - dev_dbg(&spi->dev, "read fifo: passed in buffer bigger then internal buffer \n"); - #endif + dev_dbg(&spi->dev, "read fifo: passed in buffer bigger then internal buffer\n"); return -EMSGSIZE; } @@ -961,97 +784,41 @@ int rf69_read_fifo (struct spi_device *spi, u8 *buffer, unsigned int size) memset(&transfer, 0, sizeof(transfer)); transfer.tx_buf = local_buffer; transfer.rx_buf = local_buffer; - transfer.len = size+1; + transfer.len = size + 1; retval = spi_sync_transfer(spi, &transfer, 1); - #ifdef DEBUG_FIFO_ACCESS - for (i = 0; i < size; i++) - dev_dbg(&spi->dev, "%d - 0x%x\n", i, local_buffer[i+1]); - #endif +#ifdef DEBUG_FIFO_ACCESS + for (i = 0; i < size; i++) + dev_dbg(&spi->dev, "%d - 0x%x\n", i, local_buffer[i + 1]); +#endif - memcpy(buffer, &local_buffer[1], size); // TODO: ohne memcopy wäre schöner + memcpy(buffer, &local_buffer[1], size); return retval; } int rf69_write_fifo(struct spi_device *spi, u8 *buffer, unsigned int size) { - #ifdef DEBUG_FIFO_ACCESS - int i; - #endif +#ifdef DEBUG_FIFO_ACCESS + int i; +#endif char spi_address = REG_FIFO | WRITE_BIT; u8 local_buffer[FIFO_SIZE + 1]; if (size > FIFO_SIZE) { - #ifdef DEBUG - dev_dbg(&spi->dev, "read fifo: passed in buffer bigger then internal buffer \n"); - #endif + dev_dbg(&spi->dev, "read fifo: passed in buffer bigger then internal buffer\n"); return -EMSGSIZE; } local_buffer[0] = spi_address; - memcpy(&local_buffer[1], buffer, size); // TODO: ohne memcopy wäre schöner + memcpy(&local_buffer[1], buffer, size); - #ifdef DEBUG_FIFO_ACCESS - for (i = 0; i < size; i++) - dev_dbg(&spi->dev, "0x%x\n", buffer[i]); - #endif +#ifdef DEBUG_FIFO_ACCESS + for (i = 0; i < size; i++) + dev_dbg(&spi->dev, "0x%x\n", buffer[i]); +#endif - return spi_write (spi, local_buffer, size + 1); + return spi_write(spi, local_buffer, size + 1); } -/*-------------------------------------------------------------------------*/ - -u8 rf69_read_reg(struct spi_device *spi, u8 addr) -{ - int retval; - - retval = spi_w8r8(spi, addr); - - #ifdef DEBUG_VALUES - if (retval < 0) - /* should never happen, since we already checked, - * that module is connected. Therefore no error - * handling, just an optional error message... - */ - dev_dbg(&spi->dev, "read 0x%x FAILED\n", - addr); - else - dev_dbg(&spi->dev, "read 0x%x from reg 0x%x\n", - retval, - addr); - #endif - - return retval; -} - -int rf69_write_reg(struct spi_device *spi, u8 addr, u8 value) -{ - int retval; - char buffer[2]; - - buffer[0] = addr | WRITE_BIT; - buffer[1] = value; - - retval = spi_write(spi, &buffer, 2); - - #ifdef DEBUG_VALUES - if (retval < 0) - /* should never happen, since we already checked, - * that module is connected. Therefore no error - * handling, just an optional error message... - */ - dev_dbg(&spi->dev, "write 0x%x to 0x%x FAILED\n", - value, - addr); - else - dev_dbg(&spi->dev, "wrote 0x%x to reg 0x%x\n", - value, - addr); - #endif - - return retval; -} - - diff --git a/drivers/staging/pi433/rf69.h b/drivers/staging/pi433/rf69.h index 5c0c95628f2f..09d221b8b6df 100644 --- a/drivers/staging/pi433/rf69.h +++ b/drivers/staging/pi433/rf69.h @@ -26,57 +26,42 @@ #define FIFO_THRESHOLD 15 /* in byte */ int rf69_set_mode(struct spi_device *spi, enum mode mode); -int rf69_set_data_mode(struct spi_device *spi, enum dataMode dataMode); +int rf69_set_data_mode(struct spi_device *spi, u8 data_mode); int rf69_set_modulation(struct spi_device *spi, enum modulation modulation); -enum modulation rf69_get_modulation(struct spi_device *spi); -int rf69_set_modulation_shaping(struct spi_device *spi, enum modShaping modShaping); +int rf69_set_modulation_shaping(struct spi_device *spi, enum mod_shaping mod_shaping); int rf69_set_bit_rate(struct spi_device *spi, u16 bitRate); int rf69_set_deviation(struct spi_device *spi, u32 deviation); int rf69_set_frequency(struct spi_device *spi, u32 frequency); -int rf69_set_amplifier_0(struct spi_device *spi, enum optionOnOff optionOnOff); -int rf69_set_amplifier_1(struct spi_device *spi, enum optionOnOff optionOnOff); -int rf69_set_amplifier_2(struct spi_device *spi, enum optionOnOff optionOnOff); +int rf69_enable_amplifier(struct spi_device *spi, u8 amplifier_mask); +int rf69_disable_amplifier(struct spi_device *spi, u8 amplifier_mask); int rf69_set_output_power_level(struct spi_device *spi, u8 powerLevel); int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp); int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance antennaImpedance); int rf69_set_lna_gain(struct spi_device *spi, enum lnaGain lnaGain); -enum lnaGain rf69_get_lna_gain(struct spi_device *spi); -int rf69_set_dc_cut_off_frequency_intern(struct spi_device *spi, u8 reg, enum dccPercent dccPercent); -int rf69_set_dc_cut_off_frequency(struct spi_device *spi, enum dccPercent dccPercent); -int rf69_set_dc_cut_off_frequency_during_afc(struct spi_device *spi, enum dccPercent dccPercent); int rf69_set_bandwidth(struct spi_device *spi, enum mantisse mantisse, u8 exponent); int rf69_set_bandwidth_during_afc(struct spi_device *spi, enum mantisse mantisse, u8 exponent); -int rf69_set_ook_threshold_type(struct spi_device *spi, enum thresholdType thresholdType); -int rf69_set_ook_threshold_step(struct spi_device *spi, enum thresholdStep thresholdStep); int rf69_set_ook_threshold_dec(struct spi_device *spi, enum thresholdDecrement thresholdDecrement); int rf69_set_dio_mapping(struct spi_device *spi, u8 DIONumber, u8 value); bool rf69_get_flag(struct spi_device *spi, enum flag flag); -int rf69_reset_flag(struct spi_device *spi, enum flag flag); int rf69_set_rssi_threshold(struct spi_device *spi, u8 threshold); -int rf69_set_rx_start_timeout(struct spi_device *spi, u8 timeout); -int rf69_set_rssi_timeout(struct spi_device *spi, u8 timeout); int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength); -int rf69_set_sync_enable(struct spi_device *spi, enum optionOnOff optionOnOff); -int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition fifoFillCondition); +int rf69_enable_sync(struct spi_device *spi); +int rf69_disable_sync(struct spi_device *spi); +int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifo_fill_condition fifo_fill_condition); int rf69_set_sync_size(struct spi_device *spi, u8 sync_size); -int rf69_set_sync_tolerance(struct spi_device *spi, u8 syncTolerance); int rf69_set_sync_values(struct spi_device *spi, u8 syncValues[8]); int rf69_set_packet_format(struct spi_device *spi, enum packetFormat packetFormat); -int rf69_set_crc_enable(struct spi_device *spi, enum optionOnOff optionOnOff); +int rf69_enable_crc(struct spi_device *spi); +int rf69_disable_crc(struct spi_device *spi); int rf69_set_adressFiltering(struct spi_device *spi, enum addressFiltering addressFiltering); -int rf69_set_payload_length(struct spi_device *spi, u8 payloadLength); -u8 rf69_get_payload_length(struct spi_device *spi); +int rf69_set_payload_length(struct spi_device *spi, u8 payload_length); int rf69_set_node_address(struct spi_device *spi, u8 nodeAddress); int rf69_set_broadcast_address(struct spi_device *spi, u8 broadcastAddress); int rf69_set_tx_start_condition(struct spi_device *spi, enum txStartCondition txStartCondition); int rf69_set_fifo_threshold(struct spi_device *spi, u8 threshold); int rf69_set_dagc(struct spi_device *spi, enum dagc dagc); -int rf69_read_fifo (struct spi_device *spi, u8 *buffer, unsigned int size); +int rf69_read_fifo(struct spi_device *spi, u8 *buffer, unsigned int size); int rf69_write_fifo(struct spi_device *spi, u8 *buffer, unsigned int size); -u8 rf69_read_reg (struct spi_device *spi, u8 addr); -int rf69_write_reg(struct spi_device *spi, u8 addr, u8 value); - - #endif diff --git a/drivers/staging/pi433/rf69_enum.h b/drivers/staging/pi433/rf69_enum.h index fbfb59bd3f3d..03440cfa957c 100644 --- a/drivers/staging/pi433/rf69_enum.h +++ b/drivers/staging/pi433/rf69_enum.h @@ -18,184 +18,126 @@ #ifndef RF69_ENUM_H #define RF69_ENUM_H -enum optionOnOff -{ - optionOff, - optionOn +enum mode { + mode_sleep, + standby, + synthesizer, + transmit, + receive +}; + +enum modulation { + OOK, + FSK, + UNDEF +}; + +enum mod_shaping { + SHAPING_OFF, + SHAPING_1_0, + SHAPING_0_5, + SHAPING_0_3, + SHAPING_BR, + SHAPING_2BR +}; + +enum paRamp { + ramp3400, + ramp2000, + ramp1000, + ramp500, + ramp250, + ramp125, + ramp100, + ramp62, + ramp50, + ramp40, + ramp31, + ramp25, + ramp20, + ramp15, + ramp12, + ramp10 +}; + +enum antennaImpedance { + fiftyOhm, + twohundretOhm +}; + +enum lnaGain { + automatic, + max, + max_minus_6, + max_minus_12, + max_minus_24, + max_minus_36, + max_minus_48, + undefined +}; + +enum mantisse { + mantisse16, + mantisse20, + mantisse24 +}; + +enum thresholdDecrement { + dec_every8th, + dec_every4th, + dec_every2nd, + dec_once, + dec_twice, + dec_4times, + dec_8times, + dec_16times +}; + +enum flag { + modeSwitchCompleted, + readyToReceive, + readyToSend, + pllLocked, + rssiExceededThreshold, + timeout, + automode, + syncAddressMatch, + fifo_full, +// fifo_not_empty, collision with next enum; replaced by following enum... + fifo_empty, + fifo_level_below_threshold, + fifo_overrun, + packetSent, + payload_ready, + crcOk, + batteryLow +}; + +enum fifo_fill_condition { + afterSyncInterrupt, + always +}; + +enum packetFormat { + packetLengthFix, + packetLengthVar +}; + +enum txStartCondition { + fifo_level, + fifo_not_empty +}; + +enum addressFiltering { + filteringOff, + nodeAddress, + nodeOrBroadcastAddress +}; + +enum dagc { + normalMode, + improve, + improve4LowModulationIndex }; -enum mode -{ - mode_sleep, - standby, - synthesizer, - transmit, - receive -}; - -enum dataMode -{ - packet, - continuous, - continuousNoSync -}; - -enum modulation -{ - OOK, - FSK -}; - -enum modShaping -{ - shapingOff, - shaping1_0, - shaping0_5, - shaping0_3, - shapingBR, - shaping2BR -}; - -enum paRamp -{ - ramp3400, - ramp2000, - ramp1000, - ramp500, - ramp250, - ramp125, - ramp100, - ramp62, - ramp50, - ramp40, - ramp31, - ramp25, - ramp20, - ramp15, - ramp12, - ramp10 -}; - -enum antennaImpedance -{ - fiftyOhm, - twohundretOhm -}; - -enum lnaGain -{ - automatic, - max, - maxMinus6, - maxMinus12, - maxMinus24, - maxMinus36, - maxMinus48, - undefined -}; - -enum dccPercent -{ - dcc16Percent, - dcc8Percent, - dcc4Percent, - dcc2Percent, - dcc1Percent, - dcc0_5Percent, - dcc0_25Percent, - dcc0_125Percent -}; - -enum mantisse -{ - mantisse16, - mantisse20, - mantisse24 -}; - -enum thresholdType -{ - fixed, - peak, - average -}; - -enum thresholdStep -{ - step_0_5db, - step_1_0db, - step_1_5db, - step_2_0db, - step_3_0db, - step_4_0db, - step_5_0db, - step_6_0db -}; - -enum thresholdDecrement -{ - dec_every8th, - dec_every4th, - dec_every2nd, - dec_once, - dec_twice, - dec_4times, - dec_8times, - dec_16times -}; - -enum flag -{ - modeSwitchCompleted, - readyToReceive, - readyToSend, - pllLocked, - rssiExceededThreshold, - timeout, - automode, - syncAddressMatch, - fifoFull, -// fifoNotEmpty, collision with next enum; replaced by following enum... - fifoEmpty, - fifoLevelBelowThreshold, - fifoOverrun, - packetSent, - payloadReady, - crcOk, - batteryLow -}; - -enum fifoFillCondition -{ - afterSyncInterrupt, - always -}; - -enum packetFormat -{ - packetLengthFix, - packetLengthVar -}; - -enum txStartCondition -{ - fifoLevel, - fifoNotEmpty -}; - -enum addressFiltering -{ - filteringOff, - nodeAddress, - nodeOrBroadcastAddress -}; - -enum dagc -{ - normalMode, - improve, - improve4LowModulationIndex -}; - - #endif diff --git a/drivers/staging/pi433/rf69_registers.h b/drivers/staging/pi433/rf69_registers.h index 6335d42142fe..33fd91518bb0 100644 --- a/drivers/staging/pi433/rf69_registers.h +++ b/drivers/staging/pi433/rf69_registers.h @@ -188,8 +188,6 @@ #define MASK_PALEVEL_PA2 0x20 #define MASK_PALEVEL_OUTPUT_POWER 0x1F - - // RegPaRamp #define PARAMP_3400 0x00 #define PARAMP_2000 0x01 @@ -246,7 +244,6 @@ #define LNA_GAIN_MAX_MINUS_36 0x05 #define LNA_GAIN_MAX_MINUS_48 0x06 - /* RegRxBw (0x19) and RegAfcBw (0x1A) */ #define MASK_BW_DCC_FREQ 0xE0 #define MASK_BW_MANTISSE 0x18 @@ -265,7 +262,6 @@ #define BW_MANT_20 0x08 #define BW_MANT_24 0x10 /* default */ - /* RegOokPeak (0x1B) */ #define MASK_OOKPEAK_THRESTYPE 0xc0 #define MASK_OOKPEAK_THRESSTEP 0x38 @@ -346,28 +342,28 @@ #define DIO5 5 /* DIO Mapping values (packet mode) */ -#define DIO_ModeReady_DIO4 0x00 -#define DIO_ModeReady_DIO5 0x03 -#define DIO_ClkOut 0x00 -#define DIO_Data 0x01 -#define DIO_TimeOut_DIO1 0x03 -#define DIO_TimeOut_DIO4 0x00 -#define DIO_Rssi_DIO0 0x03 -#define DIO_Rssi_DIO3_4 0x01 -#define DIO_RxReady 0x02 -#define DIO_PLLLock 0x03 -#define DIO_TxReady 0x01 -#define DIO_FifoFull_DIO1 0x01 -#define DIO_FifoFull_DIO3 0x00 -#define DIO_SyncAddress 0x02 -#define DIO_FifoNotEmpty_DIO1 0x02 -#define DIO_FifoNotEmpty_FIO2 0x00 -#define DIO_Automode 0x04 -#define DIO_FifoLevel 0x00 -#define DIO_CrcOk 0x00 -#define DIO_PayloadReady 0x01 -#define DIO_PacketSent 0x00 -#define DIO_Dclk 0x00 +#define DIO_MODE_READY_DIO4 0x00 +#define DIO_MODE_READY_DIO5 0x03 +#define DIO_CLK_OUT 0x00 +#define DIO_DATA 0x01 +#define DIO_TIMEOUT_DIO1 0x03 +#define DIO_TIMEOUT_DIO4 0x00 +#define DIO_RSSI_DIO0 0x03 +#define DIO_RSSI_DIO3_4 0x01 +#define DIO_RX_READY 0x02 +#define DIO_PLL_LOCK 0x03 +#define DIO_TX_READY 0x01 +#define DIO_FIFO_FULL_DIO1 0x01 +#define DIO_FIFO_FULL_DIO3 0x00 +#define DIO_SYNC_ADDRESS 0x02 +#define DIO_FIFO_NOT_EMPTY_DIO1 0x02 +#define DIO_FIFO_NOT_EMPTY_FIO2 0x00 +#define DIO_AUTOMODE 0x04 +#define DIO_FIFO_LEVEL 0x00 +#define DIO_CRC_OK 0x00 +#define DIO_PAYLOAD_READY 0x01 +#define DIO_PACKET_SENT 0x00 +#define DIO_DCLK 0x00 /* RegDioMapping2 CLK_OUT part */ #define MASK_DIOMAPPING2_CLK_OUT 0x07 diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c index d73e9bdc80cc..bcb6919bb7d5 100644 --- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c @@ -5395,14 +5395,14 @@ u8 set_tx_beacon_cmd(struct adapter *padapter) int len_diff = 0; - ph2c = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); + ph2c = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC); if (!ph2c) { res = _FAIL; goto exit; } ptxBeacon_parm = kmemdup(&(pmlmeinfo->network), - sizeof(struct wlan_bssid_ex), GFP_KERNEL); + sizeof(struct wlan_bssid_ex), GFP_ATOMIC); if (ptxBeacon_parm == NULL) { kfree(ph2c); res = _FAIL; diff --git a/drivers/staging/rtl8188eu/hal/pwrseqcmd.c b/drivers/staging/rtl8188eu/hal/pwrseqcmd.c index 2867864bbfbe..e6867eea3530 100644 --- a/drivers/staging/rtl8188eu/hal/pwrseqcmd.c +++ b/drivers/staging/rtl8188eu/hal/pwrseqcmd.c @@ -22,7 +22,7 @@ u8 rtl88eu_pwrseqcmdparsing(struct adapter *padapter, u8 cut_vers, struct wl_pwr_cfg pwrseqcmd[]) { - struct wl_pwr_cfg pwrcfgcmd = {0}; + struct wl_pwr_cfg pwrcfgcmd; u8 poll_bit = false; u32 aryidx = 0; u8 value = 0; diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c index 7bc9cb131bcc..30f72d220af1 100644 --- a/drivers/staging/rtl8192e/rtllib_rx.c +++ b/drivers/staging/rtl8192e/rtllib_rx.c @@ -1317,7 +1317,6 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb, bool bToOtherSTA = false; int ret = 0, i = 0; - hdr = (struct rtllib_hdr_4addr *)skb->data; fc = le16_to_cpu(hdr->frame_ctl); type = WLAN_FC_GET_TYPE(fc); stype = WLAN_FC_GET_STYPE(fc); diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c index c2b9ffba354a..919231fec09c 100644 --- a/drivers/staging/rtl8192e/rtllib_softmac.c +++ b/drivers/staging/rtl8192e/rtllib_softmac.c @@ -1968,7 +1968,7 @@ void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee) static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time) { - int timeout = ieee->ps_timeout; + int timeout; u8 dtim; struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl); diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.c b/drivers/staging/rtl8192u/ieee80211/dot11d.c index 64b13a5da3cb..ba284bfb3b6d 100644 --- a/drivers/staging/rtl8192u/ieee80211/dot11d.c +++ b/drivers/staging/rtl8192u/ieee80211/dot11d.c @@ -11,7 +11,7 @@ void Dot11d_Init(struct ieee80211_device *ieee) pDot11dInfo->State = DOT11D_STATE_NONE; pDot11dInfo->CountryIeLen = 0; - memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER+1); + memset(pDot11dInfo->channel_map, 0, MAX_CHANNEL_NUMBER + 1); memset(pDot11dInfo->MaxTxPwrDbmList, 0xFF, MAX_CHANNEL_NUMBER+1); RESET_CIE_WATCHDOG(ieee); diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c index cbf8eb4a049d..37a610d05ad2 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c @@ -110,12 +110,12 @@ ieee80211_frag_cache_get(struct ieee80211_device *ieee, hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr; tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; tid = UP2AC(tid); - tid ++; + tid++; } else if (IEEE80211_QOS_HAS_SEQ(fc)) { hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr; tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; tid = UP2AC(tid); - tid ++; + tid++; } else { tid = 0; } @@ -177,12 +177,12 @@ static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee, hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)hdr; tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; tid = UP2AC(tid); - tid ++; + tid++; } else if (IEEE80211_QOS_HAS_SEQ(fc)) { hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)hdr; tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; tid = UP2AC(tid); - tid ++; + tid++; } else { tid = 0; } @@ -434,12 +434,12 @@ static int is_duplicate_packet(struct ieee80211_device *ieee, hdr_4addrqos = (struct rtl_80211_hdr_4addrqos *)header; tid = le16_to_cpu(hdr_4addrqos->qos_ctl) & IEEE80211_QCTL_TID; tid = UP2AC(tid); - tid ++; + tid++; } else if(IEEE80211_QOS_HAS_SEQ(fc)) { //QoS hdr_3addrqos = (struct rtl_80211_hdr_3addrqos *)header; tid = le16_to_cpu(hdr_3addrqos->qos_ctl) & IEEE80211_QCTL_TID; tid = UP2AC(tid); - tid ++; + tid++; } else { // no QoS tid = 0; } diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c index f56fdc7a4b61..25c186a8bde3 100644 --- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c +++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c @@ -1725,7 +1725,7 @@ static void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, static short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l) { - int timeout = ieee->ps_timeout; + int timeout; u8 dtim; /*if(ieee->ps == IEEE80211_PS_DISABLED || ieee->iw_mode != IW_MODE_INFRA || diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c index 09f66b386e44..3c300f7b6a62 100644 --- a/drivers/staging/rtl8192u/r8192U_core.c +++ b/drivers/staging/rtl8192u/r8192U_core.c @@ -4998,7 +4998,7 @@ fail: kfree(priv->pFirmware); priv->pFirmware = NULL; rtl8192_usb_deleteendpoints(dev); - mdelay(10); + msleep(10); free_ieee80211(dev); RT_TRACE(COMP_ERR, "wlan driver load failed\n"); diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c index de832b0b5eec..2a3f0746ee2c 100644 --- a/drivers/staging/rtl8712/hal_init.c +++ b/drivers/staging/rtl8712/hal_init.c @@ -336,7 +336,6 @@ uint rtl8712_hal_init(struct _adapter *padapter) r8712_read32(padapter, RCR)); val32 = r8712_read32(padapter, RCR); r8712_write32(padapter, RCR, (val32 | BIT(25))); /* Append PHY status */ - val32 = 0; val32 = r8712_read32(padapter, 0x10250040); r8712_write32(padapter, 0x10250040, (val32 & 0x00FFFFFF)); /* for usb rx aggregation */ diff --git a/drivers/staging/rtl8712/ieee80211.c b/drivers/staging/rtl8712/ieee80211.c index 33e82a9dd462..987270395635 100644 --- a/drivers/staging/rtl8712/ieee80211.c +++ b/drivers/staging/rtl8712/ieee80211.c @@ -169,12 +169,13 @@ int r8712_generate_ie(struct registry_priv *pregistrypriv) int sz = 0, rate_len; struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network; u8 *ie = pdev_network->IEs; + u16 beaconPeriod = (u16)pdev_network->Configuration.BeaconPeriod; /*timestamp will be inserted by hardware*/ sz += 8; ie += sz; /*beacon interval : 2bytes*/ - *(__le16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod); + *(__le16 *)ie = cpu_to_le16(beaconPeriod); sz += 2; ie += 2; /*capability info*/ @@ -221,7 +222,8 @@ unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit) pbuf = r8712_get_ie(pbuf, _WPA_IE_ID_, &len, limit); if (pbuf) { /*check if oui matches...*/ - if (memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type))) + if (memcmp((pbuf + 2), wpa_oui_type, + sizeof(wpa_oui_type))) goto check_next_ie; /*check version...*/ memcpy((u8 *)&val16, (pbuf + 6), sizeof(val16)); diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c index 95caf8df9a13..e7df5d7986fc 100644 --- a/drivers/staging/rtl8712/os_intfs.c +++ b/drivers/staging/rtl8712/os_intfs.c @@ -238,10 +238,13 @@ static u32 start_drv_threads(struct _adapter *padapter) void r8712_stop_drv_threads(struct _adapter *padapter) { + struct completion *completion = + &padapter->cmdpriv.terminate_cmdthread_comp; + /*Below is to terminate r8712_cmd_thread & event_thread...*/ complete(&padapter->cmdpriv.cmd_queue_comp); if (padapter->cmdThread) - wait_for_completion_interruptible(&padapter->cmdpriv.terminate_cmdthread_comp); + wait_for_completion_interruptible(completion); padapter->cmdpriv.cmd_seq = 1; } diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c index 3c88994fdfcd..9c8e0c50a804 100644 --- a/drivers/staging/rtl8712/rtl8712_cmd.c +++ b/drivers/staging/rtl8712/rtl8712_cmd.c @@ -321,10 +321,13 @@ int r8712_cmd_thread(void *context) void (*pcmd_callback)(struct _adapter *dev, struct cmd_obj *pcmd); struct _adapter *padapter = context; struct cmd_priv *pcmdpriv = &(padapter->cmdpriv); + struct completion *cmd_queue_comp = + &pcmdpriv->cmd_queue_comp; + struct mutex *pwctrl_lock = &padapter->pwrctrlpriv.mutex_lock; allow_signal(SIGTERM); while (1) { - if (wait_for_completion_interruptible(&pcmdpriv->cmd_queue_comp)) + if (wait_for_completion_interruptible(cmd_queue_comp)) break; if (padapter->bDriverStopped || padapter->bSurpriseRemoved) break; @@ -343,6 +346,7 @@ _next: if (pcmd) { /* if pcmd != NULL, cmd will be handled by f/w */ struct dvobj_priv *pdvobj = &padapter->dvobjpriv; u8 blnPending = 0; + u16 cmdcode = pcmd->cmdcode; pcmdpriv->cmd_issued_cnt++; cmdsz = round_up(pcmd->cmdsz, 8); @@ -387,20 +391,18 @@ _next: r8712_write_mem(padapter, RTL8712_DMA_H2CCMD, wr_sz, (u8 *)pdesc); pcmdpriv->cmd_seq++; - if (pcmd->cmdcode == GEN_CMD_CODE(_CreateBss)) { + if (cmdcode == GEN_CMD_CODE(_CreateBss)) { pcmd->res = H2C_SUCCESS; - pcmd_callback = cmd_callback[pcmd-> - cmdcode].callback; + pcmd_callback = cmd_callback[cmdcode].callback; if (pcmd_callback) pcmd_callback(padapter, pcmd); continue; } - if (pcmd->cmdcode == GEN_CMD_CODE(_SetPwrMode)) { + if (cmdcode == GEN_CMD_CODE(_SetPwrMode)) { if (padapter->pwrctrlpriv.bSleep) { - mutex_lock(&padapter-> - pwrctrlpriv.mutex_lock); + mutex_lock(pwctrl_lock); r8712_set_rpwm(padapter, PS_STATE_S2); - mutex_unlock(&padapter->pwrctrlpriv.mutex_lock); + mutex_unlock(pwctrl_lock); } } r8712_free_cmd_obj(pcmd); diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c index 8f555e6e1b3f..4264cd341f03 100644 --- a/drivers/staging/rtl8712/rtl8712_recv.c +++ b/drivers/staging/rtl8712/rtl8712_recv.c @@ -899,6 +899,7 @@ static void process_link_qual(struct _adapter *padapter, { u32 last_evm = 0, tmpVal; struct rx_pkt_attrib *pattrib; + struct smooth_rssi_data *sqd = &padapter->recvpriv.signal_qual_data; if (prframe == NULL || padapter == NULL) return; @@ -907,27 +908,18 @@ static void process_link_qual(struct _adapter *padapter, /* * 1. Record the general EVM to the sliding window. */ - if (padapter->recvpriv.signal_qual_data.total_num++ >= - PHY_LINKQUALITY_SLID_WIN_MAX) { - padapter->recvpriv.signal_qual_data.total_num = - PHY_LINKQUALITY_SLID_WIN_MAX; - last_evm = padapter->recvpriv.signal_qual_data.elements - [padapter->recvpriv.signal_qual_data.index]; - padapter->recvpriv.signal_qual_data.total_val -= - last_evm; + if (sqd->total_num++ >= PHY_LINKQUALITY_SLID_WIN_MAX) { + sqd->total_num = PHY_LINKQUALITY_SLID_WIN_MAX; + last_evm = sqd->elements[sqd->index]; + sqd->total_val -= last_evm; } - padapter->recvpriv.signal_qual_data.total_val += - pattrib->signal_qual; - padapter->recvpriv.signal_qual_data.elements[padapter-> - recvpriv.signal_qual_data.index++] = - pattrib->signal_qual; - if (padapter->recvpriv.signal_qual_data.index >= - PHY_LINKQUALITY_SLID_WIN_MAX) - padapter->recvpriv.signal_qual_data.index = 0; + sqd->total_val += pattrib->signal_qual; + sqd->elements[sqd->index++] = pattrib->signal_qual; + if (sqd->index >= PHY_LINKQUALITY_SLID_WIN_MAX) + sqd->index = 0; /* <1> Showed on UI for user, in percentage. */ - tmpVal = padapter->recvpriv.signal_qual_data.total_val / - padapter->recvpriv.signal_qual_data.total_num; + tmpVal = sqd->total_val / sqd->total_num; padapter->recvpriv.signal = (u8)tmpVal; } } @@ -936,25 +928,18 @@ static void process_rssi(struct _adapter *padapter, union recv_frame *prframe) { u32 last_rssi, tmp_val; struct rx_pkt_attrib *pattrib = &prframe->u.hdr.attrib; + struct smooth_rssi_data *ssd = &padapter->recvpriv.signal_strength_data; - if (padapter->recvpriv.signal_strength_data.total_num++ >= - PHY_RSSI_SLID_WIN_MAX) { - padapter->recvpriv.signal_strength_data.total_num = - PHY_RSSI_SLID_WIN_MAX; - last_rssi = padapter->recvpriv.signal_strength_data.elements - [padapter->recvpriv.signal_strength_data.index]; - padapter->recvpriv.signal_strength_data.total_val -= last_rssi; + if (ssd->total_num++ >= PHY_RSSI_SLID_WIN_MAX) { + ssd->total_num = PHY_RSSI_SLID_WIN_MAX; + last_rssi = ssd->elements[ssd->index]; + ssd->total_val -= last_rssi; } - padapter->recvpriv.signal_strength_data.total_val += - pattrib->signal_strength; - padapter->recvpriv.signal_strength_data.elements[padapter->recvpriv. - signal_strength_data.index++] = - pattrib->signal_strength; - if (padapter->recvpriv.signal_strength_data.index >= - PHY_RSSI_SLID_WIN_MAX) - padapter->recvpriv.signal_strength_data.index = 0; - tmp_val = padapter->recvpriv.signal_strength_data.total_val / - padapter->recvpriv.signal_strength_data.total_num; + ssd->total_val += pattrib->signal_strength; + ssd->elements[ssd->index++] = pattrib->signal_strength; + if (ssd->index >= PHY_RSSI_SLID_WIN_MAX) + ssd->index = 0; + tmp_val = ssd->total_val / ssd->total_num; padapter->recvpriv.rssi = (s8)translate2dbm(padapter, (u8)tmp_val); } diff --git a/drivers/staging/rtl8712/rtl8712_xmit.c b/drivers/staging/rtl8712/rtl8712_xmit.c index 42d014007764..fb64c2891e22 100644 --- a/drivers/staging/rtl8712/rtl8712_xmit.c +++ b/drivers/staging/rtl8712/rtl8712_xmit.c @@ -573,7 +573,8 @@ static void update_txdesc(struct xmit_frame *pxmitframe, uint *pmem, int sz) } } else if (pxmitframe->frame_tag == MGNT_FRAMETAG) { /* offset 4 */ - ptxdesc->txdw1 |= cpu_to_le32((0x05) & 0x1f);/*CAM_ID(MAC_ID), default=5;*/ + /* CAM_ID(MAC_ID), default=5; */ + ptxdesc->txdw1 |= cpu_to_le32((0x05) & 0x1f); qsel = (uint)(pattrib->qsel & 0x0000001f); ptxdesc->txdw1 |= cpu_to_le32((qsel << QSEL_SHT) & 0x00001f00); ptxdesc->txdw1 |= cpu_to_le32(BIT(16));/* Non-QoS */ diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c index a424f447a725..620cee8b8514 100644 --- a/drivers/staging/rtl8712/rtl871x_cmd.c +++ b/drivers/staging/rtl8712/rtl871x_cmd.c @@ -455,8 +455,8 @@ u8 r8712_joinbss_cmd(struct _adapter *padapter, struct wlan_network *pnetwork) struct qos_priv *pqospriv = &pmlmepriv->qospriv; struct security_priv *psecuritypriv = &padapter->securitypriv; struct registry_priv *pregistrypriv = &padapter->registrypriv; - enum NDIS_802_11_NETWORK_INFRASTRUCTURE ndis_network_mode = pnetwork-> - network.InfrastructureMode; + enum NDIS_802_11_NETWORK_INFRASTRUCTURE ndis_network_mode = + pnetwork->network.InfrastructureMode; padapter->ledpriv.LedControlHandler(padapter, LED_CTL_START_TO_LINK); pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC); @@ -862,22 +862,22 @@ void r8712_createbss_cmd_callback(struct _adapter *padapter, pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy); pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi); pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse); - pnetwork->Configuration.ATIMWindow = le32_to_cpu(pnetwork-> - Configuration.ATIMWindow); - pnetwork->Configuration.DSConfig = le32_to_cpu(pnetwork-> - Configuration.DSConfig); - pnetwork->Configuration.FHConfig.DwellTime = le32_to_cpu(pnetwork-> - Configuration.FHConfig.DwellTime); - pnetwork->Configuration.FHConfig.HopPattern = le32_to_cpu(pnetwork-> - Configuration.FHConfig.HopPattern); - pnetwork->Configuration.FHConfig.HopSet = le32_to_cpu(pnetwork-> - Configuration.FHConfig.HopSet); - pnetwork->Configuration.FHConfig.Length = le32_to_cpu(pnetwork-> - Configuration.FHConfig.Length); - pnetwork->Configuration.Length = le32_to_cpu(pnetwork-> - Configuration.Length); - pnetwork->InfrastructureMode = le32_to_cpu(pnetwork-> - InfrastructureMode); + pnetwork->Configuration.ATIMWindow = + le32_to_cpu(pnetwork->Configuration.ATIMWindow); + pnetwork->Configuration.DSConfig = + le32_to_cpu(pnetwork->Configuration.DSConfig); + pnetwork->Configuration.FHConfig.DwellTime = + le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime); + pnetwork->Configuration.FHConfig.HopPattern = + le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern); + pnetwork->Configuration.FHConfig.HopSet = + le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet); + pnetwork->Configuration.FHConfig.Length = + le32_to_cpu(pnetwork->Configuration.FHConfig.Length); + pnetwork->Configuration.Length = + le32_to_cpu(pnetwork->Configuration.Length); + pnetwork->InfrastructureMode = + le32_to_cpu(pnetwork->InfrastructureMode); pnetwork->IELength = le32_to_cpu(pnetwork->IELength); #endif spin_lock_irqsave(&pmlmepriv->lock, irqL); diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c index e30a5be5f318..c3ff7c3e6681 100644 --- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c +++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c @@ -114,23 +114,27 @@ static inline void handle_pairwise_key(struct sta_info *psta, static inline void handle_group_key(struct ieee_param *param, struct _adapter *padapter) { + union Keytype *gk = padapter->securitypriv.XGrpKey; + union Keytype *gtk = padapter->securitypriv.XGrptxmickey; + union Keytype *grk = padapter->securitypriv.XGrprxmickey; + if (param->u.crypt.idx > 0 && param->u.crypt.idx < 3) { /* group key idx is 1 or 2 */ - memcpy(padapter->securitypriv.XGrpKey[param->u.crypt. - idx - 1].skey, param->u.crypt.key, - (param->u.crypt.key_len > 16 ? 16 : - param->u.crypt.key_len)); - memcpy(padapter->securitypriv.XGrptxmickey[param-> - u.crypt.idx - 1].skey, &(param->u.crypt.key[16]), 8); - memcpy(padapter->securitypriv. XGrprxmickey[param-> - u.crypt.idx - 1].skey, &(param->u.crypt.key[24]), 8); + memcpy(gk[param->u.crypt.idx - 1].skey, + param->u.crypt.key, + (param->u.crypt.key_len > 16 ? 16 : + param->u.crypt.key_len)); + memcpy(gtk[param->u.crypt.idx - 1].skey, + ¶m->u.crypt.key[16], 8); + memcpy(grk[param->u.crypt.idx - 1].skey, + ¶m->u.crypt.key[24], 8); padapter->securitypriv.binstallGrpkey = true; r8712_set_key(padapter, &padapter->securitypriv, param->u.crypt.idx); if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE) { - if (padapter->registrypriv.power_mgnt != padapter-> - pwrctrlpriv.pwr_mode) + if (padapter->registrypriv.power_mgnt != + padapter->pwrctrlpriv.pwr_mode) mod_timer(&padapter->mlmepriv.dhcp_timer, jiffies + msecs_to_jiffies(60000)); } @@ -216,9 +220,9 @@ static noinline_for_stack char *translate_scan(struct _adapter *padapter, if (dsconfig >= 1 && dsconfig <= sizeof( ieee80211_wlan_frequencies) / sizeof(long)) - iwe.u.freq.m = (s32)(ieee80211_wlan_frequencies[ - pnetwork->network.Configuration. - DSConfig - 1] * 100000); + iwe.u.freq.m = + (s32)(ieee80211_wlan_frequencies + [dsconfig - 1] * 100000); else iwe.u.freq.m = 0; } @@ -425,9 +429,9 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param, ret = -EOPNOTSUPP; goto exit; } - memcpy(&(psecuritypriv->DefKey[wep_key_idx]. - skey[0]), pwep->KeyMaterial, - pwep->KeyLength); + memcpy(&psecuritypriv->DefKey[wep_key_idx].skey[0], + pwep->KeyMaterial, + pwep->KeyLength); psecuritypriv->DefKeylen[wep_key_idx] = pwep->KeyLength; r8712_set_key(padapter, psecuritypriv, wep_key_idx); @@ -437,6 +441,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param, if (padapter->securitypriv.AuthAlgrthm == 2) { /* 802_1x */ struct sta_info *psta, *pbcmc_sta; struct sta_priv *pstapriv = &padapter->stapriv; + struct security_priv *spriv = &padapter->securitypriv; if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_MP_STATE)) { /* sta mode */ @@ -444,12 +449,11 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param, get_bssid(pmlmepriv)); if (psta) { psta->ieee8021x_blocked = false; - if ((padapter->securitypriv.ndisencryptstatus == - Ndis802_11Encryption2Enabled) || - (padapter->securitypriv.ndisencryptstatus == - Ndis802_11Encryption3Enabled)) - psta->XPrivacy = padapter-> - securitypriv.PrivacyAlgrthm; + if (spriv->ndisencryptstatus == + Ndis802_11Encryption2Enabled || + spriv->ndisencryptstatus == + Ndis802_11Encryption3Enabled) + psta->XPrivacy = spriv->PrivacyAlgrthm; if (param->u.crypt.set_tx == 1) handle_pairwise_key(psta, param, padapter); @@ -459,13 +463,12 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param, pbcmc_sta = r8712_get_bcmc_stainfo(padapter); if (pbcmc_sta) { pbcmc_sta->ieee8021x_blocked = false; - if ((padapter->securitypriv.ndisencryptstatus == - Ndis802_11Encryption2Enabled) || - (padapter->securitypriv.ndisencryptstatus == - Ndis802_11Encryption3Enabled)) + if (spriv->ndisencryptstatus == + Ndis802_11Encryption2Enabled || + spriv->ndisencryptstatus == + Ndis802_11Encryption3Enabled) pbcmc_sta->XPrivacy = - padapter->securitypriv. - PrivacyAlgrthm; + spriv->PrivacyAlgrthm; } } } @@ -763,6 +766,7 @@ static int r871x_wx_set_pmkid(struct net_device *dev, struct _adapter *padapter = netdev_priv(dev); struct security_priv *psecuritypriv = &padapter->securitypriv; struct iw_pmksa *pPMK = (struct iw_pmksa *) extra; + struct RT_PMKID_LIST *pl = psecuritypriv->PMKIDList; u8 strZeroMacAddress[ETH_ALEN] = {0x00}; u8 strIssueBssid[ETH_ALEN] = {0x00}; u8 j, blInserted = false; @@ -787,16 +791,14 @@ static int r871x_wx_set_pmkid(struct net_device *dev, blInserted = false; /* overwrite PMKID */ for (j = 0; j < NUM_PMKID_CACHE; j++) { - if (!memcmp(psecuritypriv->PMKIDList[j].Bssid, - strIssueBssid, ETH_ALEN)) { + if (!memcmp(pl[j].Bssid, strIssueBssid, ETH_ALEN)) { /* BSSID is matched, the same AP => rewrite * with new PMKID. */ netdev_info(dev, "r8712u: %s: BSSID exists in the PMKList.\n", __func__); - memcpy(psecuritypriv->PMKIDList[j].PMKID, - pPMK->pmkid, IW_PMKID_LEN); - psecuritypriv->PMKIDList[j].bUsed = true; + memcpy(pl[j].PMKID, pPMK->pmkid, IW_PMKID_LEN); + pl[j].bUsed = true; psecuritypriv->PMKIDIndex = j + 1; blInserted = true; break; @@ -806,12 +808,11 @@ static int r871x_wx_set_pmkid(struct net_device *dev, /* Find a new entry */ netdev_info(dev, "r8712u: %s: Use the new entry index = %d for this PMKID.\n", __func__, psecuritypriv->PMKIDIndex); - memcpy(psecuritypriv->PMKIDList[psecuritypriv-> - PMKIDIndex].Bssid, strIssueBssid, ETH_ALEN); - memcpy(psecuritypriv->PMKIDList[psecuritypriv-> - PMKIDIndex].PMKID, pPMK->pmkid, IW_PMKID_LEN); - psecuritypriv->PMKIDList[psecuritypriv->PMKIDIndex]. - bUsed = true; + memcpy(pl[psecuritypriv->PMKIDIndex].Bssid, + strIssueBssid, ETH_ALEN); + memcpy(pl[psecuritypriv->PMKIDIndex].PMKID, + pPMK->pmkid, IW_PMKID_LEN); + pl[psecuritypriv->PMKIDIndex].bUsed = true; psecuritypriv->PMKIDIndex++; if (psecuritypriv->PMKIDIndex == NUM_PMKID_CACHE) psecuritypriv->PMKIDIndex = 0; @@ -820,13 +821,12 @@ static int r871x_wx_set_pmkid(struct net_device *dev, case IW_PMKSA_REMOVE: intReturn = true; for (j = 0; j < NUM_PMKID_CACHE; j++) { - if (!memcmp(psecuritypriv->PMKIDList[j].Bssid, - strIssueBssid, ETH_ALEN)) { + if (!memcmp(pl[j].Bssid, strIssueBssid, ETH_ALEN)) { /* BSSID is matched, the same AP => Remove * this PMKID information and reset it. */ - eth_zero_addr(psecuritypriv->PMKIDList[j].Bssid); - psecuritypriv->PMKIDList[j].bUsed = false; + eth_zero_addr(pl[j].Bssid); + pl[j].bUsed = false; break; } } @@ -1598,6 +1598,7 @@ static int r8711_wx_get_enc(struct net_device *dev, struct _adapter *padapter = netdev_priv(dev); struct iw_point *erq = &(wrqu->encoding); struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); + union Keytype *dk = padapter->securitypriv.DefKey; if (!check_fwstate(pmlmepriv, _FW_LINKED)) { if (!check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) { @@ -1624,9 +1625,8 @@ static int r8711_wx_get_enc(struct net_device *dev, case Ndis802_11Encryption1Enabled: erq->length = padapter->securitypriv.DefKeylen[key]; if (erq->length) { - memcpy(keybuf, padapter->securitypriv.DefKey[ - key].skey, padapter->securitypriv. - DefKeylen[key]); + memcpy(keybuf, dk[key].skey, + padapter->securitypriv.DefKeylen[key]); erq->flags |= IW_ENCODE_ENABLED; if (padapter->securitypriv.ndisauthtype == Ndis802_11AuthModeOpen) @@ -1719,12 +1719,12 @@ static int r871x_wx_set_auth(struct net_device *dev, */ if (padapter->securitypriv.ndisencryptstatus == Ndis802_11Encryption1Enabled) { - /* it means init value, or using wep, - * ndisencryptstatus = - * Ndis802_11Encryption1Enabled, - * then it needn't reset it; - */ - break; + /* it means init value, or using wep, + * ndisencryptstatus = + * Ndis802_11Encryption1Enabled, + * then it needn't reset it; + */ + break; } if (paramval) { @@ -1853,7 +1853,7 @@ static int dummy(struct net_device *dev, struct iw_request_info *a, union iwreq_data *wrqu, char *b) { - return -ENOSYS; + return -EINVAL; } static int r8711_drvext_hdl(struct net_device *dev, diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_set.c b/drivers/staging/rtl8712/rtl871x_ioctl_set.c index 8a5ced4fa9d3..f4a53df7f2c1 100644 --- a/drivers/staging/rtl8712/rtl871x_ioctl_set.c +++ b/drivers/staging/rtl8712/rtl871x_ioctl_set.c @@ -55,6 +55,7 @@ static u8 do_join(struct _adapter *padapter) u8 *pibss = NULL; struct mlme_priv *pmlmepriv = &(padapter->mlmepriv); struct __queue *queue = &(pmlmepriv->scanned_queue); + int ret; phead = &queue->queue; plist = phead->next; @@ -74,45 +75,42 @@ static u8 do_join(struct _adapter *padapter) if (!pmlmepriv->sitesurveyctrl.traffic_busy) r8712_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid); return true; - } else { - int ret; + } - ret = r8712_select_and_join_from_scan(pmlmepriv); - if (ret == _SUCCESS) { - mod_timer(&pmlmepriv->assoc_timer, - jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT)); + ret = r8712_select_and_join_from_scan(pmlmepriv); + if (ret == _SUCCESS) { + mod_timer(&pmlmepriv->assoc_timer, + jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT)); + } else { + if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { + /* submit r8712_createbss_cmd to change to an + * ADHOC_MASTER pmlmepriv->lock has been + * acquired by caller... + */ + struct wlan_bssid_ex *pdev_network = + &(padapter->registrypriv.dev_network); + pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE; + pibss = padapter->registrypriv.dev_network.MacAddress; + memcpy(&pdev_network->Ssid, + &pmlmepriv->assoc_ssid, + sizeof(struct ndis_802_11_ssid)); + r8712_update_registrypriv_dev_network(padapter); + r8712_generate_random_ibss(pibss); + if (r8712_createbss_cmd(padapter) != _SUCCESS) + return false; + pmlmepriv->to_join = false; } else { - if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { - /* submit r8712_createbss_cmd to change to an - * ADHOC_MASTER pmlmepriv->lock has been - * acquired by caller... - */ - struct wlan_bssid_ex *pdev_network = - &(padapter->registrypriv.dev_network); - pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE; - pibss = padapter->registrypriv.dev_network. - MacAddress; - memcpy(&pdev_network->Ssid, - &pmlmepriv->assoc_ssid, - sizeof(struct ndis_802_11_ssid)); - r8712_update_registrypriv_dev_network(padapter); - r8712_generate_random_ibss(pibss); - if (r8712_createbss_cmd(padapter) != _SUCCESS) - return false; - pmlmepriv->to_join = false; - } else { - /* can't associate ; reset under-linking */ - if (pmlmepriv->fw_state & _FW_UNDER_LINKING) - pmlmepriv->fw_state ^= - _FW_UNDER_LINKING; - /* when set_ssid/set_bssid for do_join(), but - * there are no desired bss in scanning queue - * we try to issue sitesurvey first - */ - if (!pmlmepriv->sitesurveyctrl.traffic_busy) - r8712_sitesurvey_cmd(padapter, - &pmlmepriv->assoc_ssid); - } + /* can't associate ; reset under-linking */ + if (pmlmepriv->fw_state & _FW_UNDER_LINKING) + pmlmepriv->fw_state ^= + _FW_UNDER_LINKING; + /* when set_ssid/set_bssid for do_join(), but + * there are no desired bss in scanning queue + * we try to issue sitesurvey first + */ + if (!pmlmepriv->sitesurveyctrl.traffic_busy) + r8712_sitesurvey_cmd(padapter, + &pmlmepriv->assoc_ssid); } } return true; diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c index 111c809afc51..78245080e328 100644 --- a/drivers/staging/rtl8712/rtl871x_mlme.c +++ b/drivers/staging/rtl8712/rtl871x_mlme.c @@ -319,6 +319,7 @@ static void update_network(struct wlan_bssid_ex *dst, struct _adapter *padapter) { u32 last_evm = 0, tmpVal; + struct smooth_rssi_data *sqd = &padapter->recvpriv.signal_qual_data; if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && is_same_network(&(padapter->mlmepriv.cur_network.network), src)) { @@ -326,17 +327,13 @@ static void update_network(struct wlan_bssid_ex *dst, PHY_LINKQUALITY_SLID_WIN_MAX) { padapter->recvpriv.signal_qual_data.total_num = PHY_LINKQUALITY_SLID_WIN_MAX; - last_evm = padapter->recvpriv.signal_qual_data. - elements[padapter->recvpriv. - signal_qual_data.index]; + last_evm = sqd->elements[sqd->index]; padapter->recvpriv.signal_qual_data.total_val -= last_evm; } padapter->recvpriv.signal_qual_data.total_val += src->Rssi; - padapter->recvpriv.signal_qual_data. - elements[padapter->recvpriv.signal_qual_data. - index++] = src->Rssi; + sqd->elements[sqd->index++] = src->Rssi; if (padapter->recvpriv.signal_qual_data.index >= PHY_LINKQUALITY_SLID_WIN_MAX) padapter->recvpriv.signal_qual_data.index = 0; diff --git a/drivers/staging/rtl8712/rtl871x_mlme.h b/drivers/staging/rtl8712/rtl871x_mlme.h index b21f28140f53..918947f38151 100644 --- a/drivers/staging/rtl8712/rtl871x_mlme.h +++ b/drivers/staging/rtl8712/rtl871x_mlme.h @@ -55,7 +55,8 @@ * single-tone */ #define WIFI_MP_CTX_BACKGROUND_PENDING 0x00080000 /* pending in cont, tx - * background due to out of skb + * background due + * to out of skb */ #define WIFI_MP_CTX_CCK_HW 0x00100000 /* in continuous tx*/ #define WIFI_MP_CTX_CCK_CS 0x00200000 /* in cont, tx with carrier diff --git a/drivers/staging/rtl8712/rtl871x_mp.c b/drivers/staging/rtl8712/rtl871x_mp.c index 3c10a2c848c8..ba208a2e1e4e 100644 --- a/drivers/staging/rtl8712/rtl871x_mp.c +++ b/drivers/staging/rtl8712/rtl871x_mp.c @@ -541,7 +541,7 @@ void r8712_SetSingleCarrierTx(struct _adapter *pAdapter, u8 bStart) void r8712_SetSingleToneTx(struct _adapter *pAdapter, u8 bStart) { - u8 rfPath = pAdapter->mppriv.curr_rfpath; + u8 rfPath; switch (pAdapter->mppriv.antenna_tx) { case ANTENNA_B: diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c index 56d36f6f9c46..7bc74d7d8a3a 100644 --- a/drivers/staging/rtl8712/rtl871x_security.c +++ b/drivers/staging/rtl8712/rtl871x_security.c @@ -165,7 +165,7 @@ void r8712_wep_encrypt(struct _adapter *padapter, u8 *pxmitframe) { /* exclude ICV */ unsigned char crc[4]; struct arc4context mycontext; - u32 curfragnum, length, keylength; + u32 curfragnum, length, keylength, pki; u8 *pframe, *payload, *iv; /*,*wepkey*/ u8 wepkey[16]; struct pkt_attrib *pattrib = &((struct xmit_frame *) @@ -178,8 +178,8 @@ void r8712_wep_encrypt(struct _adapter *padapter, u8 *pxmitframe) pframe = ((struct xmit_frame *)pxmitframe)->buf_addr + TXDESC_OFFSET; /*start to encrypt each fragment*/ if ((pattrib->encrypt == _WEP40_) || (pattrib->encrypt == _WEP104_)) { - keylength = psecuritypriv->DefKeylen[psecuritypriv-> - PrivacyKeyIndex]; + pki = psecuritypriv->PrivacyKeyIndex; + keylength = psecuritypriv->DefKeylen[pki]; for (curfragnum = 0; curfragnum < pattrib->nr_frags; curfragnum++) { iv = pframe + pattrib->hdrlen; @@ -189,9 +189,10 @@ void r8712_wep_encrypt(struct _adapter *padapter, u8 *pxmitframe) keylength); payload = pframe + pattrib->iv_len + pattrib->hdrlen; if ((curfragnum + 1) == pattrib->nr_frags) { - length = pattrib->last_txcmdsz - pattrib-> - hdrlen - pattrib->iv_len - - pattrib->icv_len; + length = pattrib->last_txcmdsz - + pattrib->hdrlen - + pattrib->iv_len - + pattrib->icv_len; *((__le32 *)crc) = cpu_to_le32(getcrc32( payload, length)); arcfour_init(&mycontext, wepkey, 3 + keylength); @@ -606,8 +607,8 @@ u32 r8712_tkip_encrypt(struct _adapter *padapter, u8 *pxmitframe) GET_TKIP_PN(iv, txpn); pnl = (u16)(txpn.val); pnh = (u32)(txpn.val >> 16); - phase1((u16 *)&ttkey[0], prwskey, &pattrib-> - ta[0], pnh); + phase1((u16 *)&ttkey[0], prwskey, + &pattrib->ta[0], pnh); phase2(&rc4key[0], prwskey, (u16 *)&ttkey[0], pnl); if ((curfragnum + 1) == pattrib->nr_frags) { @@ -997,8 +998,9 @@ static void construct_mic_header2(u8 *mic_header2, u8 *mpdu, sint a4_exists, /* Builds the last MIC header block from */ /* header fields. */ /************************************************/ -static void construct_ctr_preload(u8 *ctr_preload, sint a4_exists, sint qc_exists, - u8 *mpdu, u8 *pn_vector, sint c) +static void construct_ctr_preload(u8 *ctr_preload, + sint a4_exists, sint qc_exists, + u8 *mpdu, u8 *pn_vector, sint c) { sint i; @@ -1067,16 +1069,16 @@ static sint aes_cipher(u8 *key, uint hdrlen, if ((frtype == WIFI_DATA_CFACK) || (frtype == WIFI_DATA_CFPOLL) || (frtype == WIFI_DATA_CFACKPOLL)) { - qc_exists = 1; - if (hdrlen != WLAN_HDR_A3_QOS_LEN) - hdrlen += 2; + qc_exists = 1; + if (hdrlen != WLAN_HDR_A3_QOS_LEN) + hdrlen += 2; } else if ((frsubtype == 0x08) || (frsubtype == 0x09) || (frsubtype == 0x0a) || (frsubtype == 0x0b)) { - if (hdrlen != WLAN_HDR_A3_QOS_LEN) - hdrlen += 2; - qc_exists = 1; + if (hdrlen != WLAN_HDR_A3_QOS_LEN) + hdrlen += 2; + qc_exists = 1; } else { qc_exists = 0; } @@ -1184,15 +1186,15 @@ u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe) pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len; - aes_cipher(prwskey, pattrib-> - hdrlen, pframe, length); + aes_cipher(prwskey, pattrib->hdrlen, + pframe, length); } else { length = pxmitpriv->frag_len - pattrib->hdrlen - pattrib->iv_len - pattrib->icv_len; - aes_cipher(prwskey, pattrib-> - hdrlen, pframe, length); + aes_cipher(prwskey, pattrib->hdrlen, + pframe, length); pframe += pxmitpriv->frag_len; pframe = (u8 *)RND4((addr_t)(pframe)); } @@ -1405,7 +1407,7 @@ u32 r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe) void r8712_use_tkipkey_handler(struct timer_list *t) { struct _adapter *padapter = - from_timer(padapter, t, securitypriv.tkip_timer); + from_timer(padapter, t, securitypriv.tkip_timer); padapter->securitypriv.busetkipkey = true; } diff --git a/drivers/staging/rtl8712/usb_ops_linux.c b/drivers/staging/rtl8712/usb_ops_linux.c index 441e76b8959d..6d12a96fa65f 100644 --- a/drivers/staging/rtl8712/usb_ops_linux.c +++ b/drivers/staging/rtl8712/usb_ops_linux.c @@ -145,7 +145,7 @@ static unsigned int ffaddr2pipehdl(struct dvobj_priv *pdvobj, u32 addr) break; } } else { - pipe = 0; + pipe = 0; } return pipe; } diff --git a/drivers/staging/rtl8723bs/core/rtw_cmd.c b/drivers/staging/rtl8723bs/core/rtw_cmd.c index 9ac2dea6dff1..af0a9e0a00df 100644 --- a/drivers/staging/rtl8723bs/core/rtw_cmd.c +++ b/drivers/staging/rtl8723bs/core/rtw_cmd.c @@ -846,9 +846,7 @@ u8 rtw_joinbss_cmd(struct adapter *padapter, struct wlan_network *pnetwork) psecnetwork = (struct wlan_bssid_ex *)&psecuritypriv->sec_bss; if (psecnetwork == NULL) { - if (pcmd != NULL) - kfree(pcmd); - + kfree(pcmd); res = _FAIL; RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("rtw_joinbss_cmd :psecnetwork == NULL!!!\n")); diff --git a/drivers/staging/rtl8723bs/hal/HalPhyRf_8723B.c b/drivers/staging/rtl8723bs/hal/HalPhyRf_8723B.c index c16e147d8adc..a99a863be656 100644 --- a/drivers/staging/rtl8723bs/hal/HalPhyRf_8723B.c +++ b/drivers/staging/rtl8723bs/hal/HalPhyRf_8723B.c @@ -1052,7 +1052,7 @@ static u8 phy_PathB_RxIQK8723B(struct adapter *padapter, bool configPathB) /* Check failed */ regEAC = PHY_QueryBBReg(pDM_Odm->Adapter, rRx_Power_After_IQK_A_2, bMaskDWord); - regEA4 = PHY_QueryBBReg(pDM_Odm->Adapter, rRx_Power_Before_IQK_A_2, bMaskDWord);; + regEA4 = PHY_QueryBBReg(pDM_Odm->Adapter, rRx_Power_Before_IQK_A_2, bMaskDWord); ODM_RT_TRACE(pDM_Odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("0xeac = 0x%x\n", regEAC)); ODM_RT_TRACE(pDM_Odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("0xea4 = 0x%x, 0xeac = 0x%x\n", regEA4, regEAC)); diff --git a/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c b/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c index f4619768a99f..334d680b9b1c 100644 --- a/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c +++ b/drivers/staging/rtl8723bs/hal/HalPwrSeqCmd.c @@ -50,7 +50,7 @@ u8 HalPwrSeqCmdParsing( WLAN_PWR_CFG PwrSeqCmd[] ) { - WLAN_PWR_CFG PwrCfgCmd = {0}; + WLAN_PWR_CFG PwrCfgCmd; u8 bPollingBit = false; u32 AryIdx = 0; u8 value = 0; diff --git a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c index e6787c22e00b..93d6cc478706 100644 --- a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c +++ b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c @@ -66,8 +66,7 @@ u8 PHY_GetTxPowerByRateBase(struct adapter *Adapter, u8 Band, u8 RfPath, DBG_871X("Invalid RateSection %d in Band 2.4G, Rf Path %d, %dTx in PHY_GetTxPowerByRateBase()\n", RateSection, RfPath, TxNum); break; - - }; + } } else if (Band == BAND_ON_5G) { switch (RateSection) { case OFDM: @@ -101,7 +100,7 @@ u8 PHY_GetTxPowerByRateBase(struct adapter *Adapter, u8 Band, u8 RfPath, DBG_871X("Invalid RateSection %d in Band 5G, Rf Path %d, %dTx in PHY_GetTxPowerByRateBase()\n", RateSection, RfPath, TxNum); break; - }; + } } else DBG_871X("Invalid Band %d in PHY_GetTxPowerByRateBase()\n", Band); @@ -161,7 +160,7 @@ phy_SetTxPowerByRateBase( DBG_871X("Invalid RateSection %d in Band 2.4G, Rf Path %d, %dTx in phy_SetTxPowerByRateBase()\n", RateSection, RfPath, TxNum); break; - }; + } } else if (Band == BAND_ON_5G) { switch (RateSection) { case OFDM: @@ -195,7 +194,7 @@ phy_SetTxPowerByRateBase( DBG_871X("Invalid RateSection %d in Band 5G, Rf Path %d, %dTx in phy_SetTxPowerByRateBase()\n", RateSection, RfPath, TxNum); break; - }; + } } else DBG_871X("Invalid Band %d in phy_SetTxPowerByRateBase()\n", Band); } @@ -336,7 +335,7 @@ u8 PHY_GetRateSectionIndexOfTxPowerByRate( default: DBG_871X("Invalid RegAddr 0x3%x in PHY_GetRateSectionIndexOfTxPowerByRate()", RegAddr); break; - }; + } } return index; @@ -726,7 +725,7 @@ PHY_GetRateValuesOfTxPowerByRate( default: DBG_871X("Invalid RegAddr 0x%x in %s()\n", RegAddr, __func__); break; - }; + } } static void PHY_StoreTxPowerByRateNew( @@ -1474,8 +1473,7 @@ u8 PHY_GetRateIndexOfTxPowerByRate(u8 Rate) default: DBG_871X("Invalid rate 0x%x in %s\n", Rate, __func__); break; - }; - + } return index; } diff --git a/drivers/staging/rtl8723bs/hal/rtl8723b_phycfg.c b/drivers/staging/rtl8723bs/hal/rtl8723b_phycfg.c index 21ec890fd60c..e34d133075c0 100644 --- a/drivers/staging/rtl8723bs/hal/rtl8723b_phycfg.c +++ b/drivers/staging/rtl8723bs/hal/rtl8723b_phycfg.c @@ -153,7 +153,7 @@ static u32 phy_RFSerialRead_8723B( NewOffset = Offset; if (eRFPath == RF_PATH_A) { - tmplong2 = PHY_QueryBBReg(Adapter, rFPGA0_XA_HSSIParameter2|MaskforPhySet, bMaskDWord);; + tmplong2 = PHY_QueryBBReg(Adapter, rFPGA0_XA_HSSIParameter2|MaskforPhySet, bMaskDWord); tmplong2 = (tmplong2 & (~bLSSIReadAddress)) | (NewOffset<<23) | bLSSIReadEdge; /* T65 RF */ PHY_SetBBReg(Adapter, rFPGA0_XA_HSSIParameter2|MaskforPhySet, bMaskDWord, tmplong2&(~bLSSIReadEdge)); } else { diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl8723bs/hal/sdio_ops.c index 9a4c24861947..ab2ff53a8e57 100644 --- a/drivers/staging/rtl8723bs/hal/sdio_ops.c +++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c @@ -28,35 +28,35 @@ /* Creadted by Roger, 2011.01.31. */ /* */ static void HalSdioGetCmdAddr8723BSdio( - struct adapter *padapter, - u8 DeviceID, - u32 Addr, - u32 *pCmdAddr + struct adapter *adapter, + u8 device_id, + u32 addr, + u32 *cmdaddr ) { - switch (DeviceID) { + switch (device_id) { case SDIO_LOCAL_DEVICE_ID: - *pCmdAddr = ((SDIO_LOCAL_DEVICE_ID << 13) | (Addr & SDIO_LOCAL_MSK)); + *cmdaddr = ((SDIO_LOCAL_DEVICE_ID << 13) | (addr & SDIO_LOCAL_MSK)); break; case WLAN_IOREG_DEVICE_ID: - *pCmdAddr = ((WLAN_IOREG_DEVICE_ID << 13) | (Addr & WLAN_IOREG_MSK)); + *cmdaddr = ((WLAN_IOREG_DEVICE_ID << 13) | (addr & WLAN_IOREG_MSK)); break; case WLAN_TX_HIQ_DEVICE_ID: - *pCmdAddr = ((WLAN_TX_HIQ_DEVICE_ID << 13) | (Addr & WLAN_FIFO_MSK)); + *cmdaddr = ((WLAN_TX_HIQ_DEVICE_ID << 13) | (addr & WLAN_FIFO_MSK)); break; case WLAN_TX_MIQ_DEVICE_ID: - *pCmdAddr = ((WLAN_TX_MIQ_DEVICE_ID << 13) | (Addr & WLAN_FIFO_MSK)); + *cmdaddr = ((WLAN_TX_MIQ_DEVICE_ID << 13) | (addr & WLAN_FIFO_MSK)); break; case WLAN_TX_LOQ_DEVICE_ID: - *pCmdAddr = ((WLAN_TX_LOQ_DEVICE_ID << 13) | (Addr & WLAN_FIFO_MSK)); + *cmdaddr = ((WLAN_TX_LOQ_DEVICE_ID << 13) | (addr & WLAN_FIFO_MSK)); break; case WLAN_RX0FF_DEVICE_ID: - *pCmdAddr = ((WLAN_RX0FF_DEVICE_ID << 13) | (Addr & WLAN_RX0FF_MSK)); + *cmdaddr = ((WLAN_RX0FF_DEVICE_ID << 13) | (addr & WLAN_RX0FF_MSK)); break; default: @@ -66,64 +66,64 @@ static void HalSdioGetCmdAddr8723BSdio( static u8 get_deviceid(u32 addr) { - u8 devideId; - u16 pseudoId; + u8 devide_id; + u16 pseudo_id; - pseudoId = (u16)(addr >> 16); - switch (pseudoId) { + pseudo_id = (u16)(addr >> 16); + switch (pseudo_id) { case 0x1025: - devideId = SDIO_LOCAL_DEVICE_ID; + devide_id = SDIO_LOCAL_DEVICE_ID; break; case 0x1026: - devideId = WLAN_IOREG_DEVICE_ID; + devide_id = WLAN_IOREG_DEVICE_ID; break; /* case 0x1027: */ -/* devideId = SDIO_FIRMWARE_FIFO; */ +/* devide_id = SDIO_FIRMWARE_FIFO; */ /* break; */ case 0x1031: - devideId = WLAN_TX_HIQ_DEVICE_ID; + devide_id = WLAN_TX_HIQ_DEVICE_ID; break; case 0x1032: - devideId = WLAN_TX_MIQ_DEVICE_ID; + devide_id = WLAN_TX_MIQ_DEVICE_ID; break; case 0x1033: - devideId = WLAN_TX_LOQ_DEVICE_ID; + devide_id = WLAN_TX_LOQ_DEVICE_ID; break; case 0x1034: - devideId = WLAN_RX0FF_DEVICE_ID; + devide_id = WLAN_RX0FF_DEVICE_ID; break; default: -/* devideId = (u8)((addr >> 13) & 0xF); */ - devideId = WLAN_IOREG_DEVICE_ID; +/* devide_id = (u8)((addr >> 13) & 0xF); */ + devide_id = WLAN_IOREG_DEVICE_ID; break; } - return devideId; + return devide_id; } /* * Ref: *HalSdioGetCmdAddr8723BSdio() */ -static u32 _cvrt2ftaddr(const u32 addr, u8 *pdeviceId, u16 *poffset) +static u32 _cvrt2ftaddr(const u32 addr, u8 *pdevice_id, u16 *poffset) { - u8 deviceId; + u8 device_id; u16 offset; u32 ftaddr; - deviceId = get_deviceid(addr); + device_id = get_deviceid(addr); offset = 0; - switch (deviceId) { + switch (device_id) { case SDIO_LOCAL_DEVICE_ID: offset = addr & SDIO_LOCAL_MSK; break; @@ -140,47 +140,44 @@ static u32 _cvrt2ftaddr(const u32 addr, u8 *pdeviceId, u16 *poffset) case WLAN_IOREG_DEVICE_ID: default: - deviceId = WLAN_IOREG_DEVICE_ID; + device_id = WLAN_IOREG_DEVICE_ID; offset = addr & WLAN_IOREG_MSK; break; } - ftaddr = (deviceId << 13) | offset; + ftaddr = (device_id << 13) | offset; - if (pdeviceId) - *pdeviceId = deviceId; + if (pdevice_id) + *pdevice_id = device_id; if (poffset) *poffset = offset; return ftaddr; } -static u8 sdio_read8(struct intf_hdl *pintfhdl, u32 addr) +static u8 sdio_read8(struct intf_hdl *intfhdl, u32 addr) { u32 ftaddr; - u8 val; - ftaddr = _cvrt2ftaddr(addr, NULL, NULL); - val = sd_read8(pintfhdl, ftaddr, NULL); - return val; + + return sd_read8(intfhdl, ftaddr, NULL); } -static u16 sdio_read16(struct intf_hdl *pintfhdl, u32 addr) +static u16 sdio_read16(struct intf_hdl *intfhdl, u32 addr) { u32 ftaddr; - u16 val; __le16 le_tmp; ftaddr = _cvrt2ftaddr(addr, NULL, NULL); - sd_cmd52_read(pintfhdl, ftaddr, 2, (u8 *)&le_tmp); - val = le16_to_cpu(le_tmp); - return val; + sd_cmd52_read(intfhdl, ftaddr, 2, (u8 *)&le_tmp); + + return le16_to_cpu(le_tmp); } -static u32 sdio_read32(struct intf_hdl *pintfhdl, u32 addr) +static u32 sdio_read32(struct intf_hdl *intfhdl, u32 addr) { - struct adapter *padapter; - u8 bMacPwrCtrlOn; - u8 deviceId; + struct adapter *adapter; + u8 mac_pwr_ctrl_on; + u8 device_id; u16 offset; u32 ftaddr; u8 shift; @@ -188,21 +185,20 @@ static u32 sdio_read32(struct intf_hdl *pintfhdl, u32 addr) s32 err; __le32 le_tmp; - padapter = pintfhdl->padapter; - ftaddr = _cvrt2ftaddr(addr, &deviceId, &offset); + adapter = intfhdl->padapter; + ftaddr = _cvrt2ftaddr(addr, &device_id, &offset); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); if ( - ((deviceId == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || - (false == bMacPwrCtrlOn) || - (true == adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) + ((device_id == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || + (!mac_pwr_ctrl_on) || + (adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) ) { - err = sd_cmd52_read(pintfhdl, ftaddr, 4, (u8 *)&le_tmp); + err = sd_cmd52_read(intfhdl, ftaddr, 4, (u8 *)&le_tmp); #ifdef SDIO_DEBUG_IO if (!err) { #endif - val = le32_to_cpu(le_tmp); - return val; + return le32_to_cpu(le_tmp); #ifdef SDIO_DEBUG_IO } @@ -214,191 +210,184 @@ static u32 sdio_read32(struct intf_hdl *pintfhdl, u32 addr) /* 4 bytes alignment */ shift = ftaddr & 0x3; if (shift == 0) { - val = sd_read32(pintfhdl, ftaddr, NULL); + val = sd_read32(intfhdl, ftaddr, NULL); } else { - u8 *ptmpbuf; + u8 *tmpbuf; - ptmpbuf = rtw_malloc(8); - if (NULL == ptmpbuf) { + tmpbuf = rtw_malloc(8); + if (!tmpbuf) { DBG_8192C(KERN_ERR "%s: Allocate memory FAIL!(size =8) addr = 0x%x\n", __func__, addr); return SDIO_ERR_VAL32; } ftaddr &= ~(u16)0x3; - sd_read(pintfhdl, ftaddr, 8, ptmpbuf); - memcpy(&le_tmp, ptmpbuf+shift, 4); + sd_read(intfhdl, ftaddr, 8, tmpbuf); + memcpy(&le_tmp, tmpbuf+shift, 4); val = le32_to_cpu(le_tmp); - kfree(ptmpbuf); + kfree(tmpbuf); } return val; } -static s32 sdio_readN(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pbuf) +static s32 sdio_readN(struct intf_hdl *intfhdl, u32 addr, u32 cnt, u8 *buf) { - struct adapter *padapter; - u8 bMacPwrCtrlOn; - u8 deviceId; + struct adapter *adapter; + u8 mac_pwr_ctrl_on; + u8 device_id; u16 offset; u32 ftaddr; u8 shift; s32 err; - padapter = pintfhdl->padapter; + adapter = intfhdl->padapter; err = 0; - ftaddr = _cvrt2ftaddr(addr, &deviceId, &offset); + ftaddr = _cvrt2ftaddr(addr, &device_id, &offset); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); if ( - ((deviceId == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || - (false == bMacPwrCtrlOn) || - (true == adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) - ) { - err = sd_cmd52_read(pintfhdl, ftaddr, cnt, pbuf); - return err; - } + ((device_id == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || + (!mac_pwr_ctrl_on) || + (adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) + ) + return sd_cmd52_read(intfhdl, ftaddr, cnt, buf); /* 4 bytes alignment */ shift = ftaddr & 0x3; if (shift == 0) { - err = sd_read(pintfhdl, ftaddr, cnt, pbuf); + err = sd_read(intfhdl, ftaddr, cnt, buf); } else { - u8 *ptmpbuf; + u8 *tmpbuf; u32 n; ftaddr &= ~(u16)0x3; n = cnt + shift; - ptmpbuf = rtw_malloc(n); - if (NULL == ptmpbuf) + tmpbuf = rtw_malloc(n); + if (!tmpbuf) return -1; - err = sd_read(pintfhdl, ftaddr, n, ptmpbuf); + err = sd_read(intfhdl, ftaddr, n, tmpbuf); if (!err) - memcpy(pbuf, ptmpbuf+shift, cnt); - kfree(ptmpbuf); + memcpy(buf, tmpbuf+shift, cnt); + kfree(tmpbuf); } return err; } -static s32 sdio_write8(struct intf_hdl *pintfhdl, u32 addr, u8 val) +static s32 sdio_write8(struct intf_hdl *intfhdl, u32 addr, u8 val) { u32 ftaddr; s32 err; ftaddr = _cvrt2ftaddr(addr, NULL, NULL); - sd_write8(pintfhdl, ftaddr, val, &err); + sd_write8(intfhdl, ftaddr, val, &err); return err; } -static s32 sdio_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val) +static s32 sdio_write16(struct intf_hdl *intfhdl, u32 addr, u16 val) { u32 ftaddr; - s32 err; __le16 le_tmp; ftaddr = _cvrt2ftaddr(addr, NULL, NULL); le_tmp = cpu_to_le16(val); - err = sd_cmd52_write(pintfhdl, ftaddr, 2, (u8 *)&le_tmp); - - return err; + return sd_cmd52_write(intfhdl, ftaddr, 2, (u8 *)&le_tmp); } -static s32 sdio_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val) +static s32 sdio_write32(struct intf_hdl *intfhdl, u32 addr, u32 val) { - struct adapter *padapter; - u8 bMacPwrCtrlOn; - u8 deviceId; + struct adapter *adapter; + u8 mac_pwr_ctrl_on; + u8 device_id; u16 offset; u32 ftaddr; u8 shift; s32 err; __le32 le_tmp; - padapter = pintfhdl->padapter; + adapter = intfhdl->padapter; err = 0; - ftaddr = _cvrt2ftaddr(addr, &deviceId, &offset); + ftaddr = _cvrt2ftaddr(addr, &device_id, &offset); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); if ( - ((deviceId == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || - (!bMacPwrCtrlOn) || - (adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) + ((device_id == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || + (!mac_pwr_ctrl_on) || + (adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) ) { le_tmp = cpu_to_le32(val); - err = sd_cmd52_write(pintfhdl, ftaddr, 4, (u8 *)&le_tmp); - return err; + + return sd_cmd52_write(intfhdl, ftaddr, 4, (u8 *)&le_tmp); } /* 4 bytes alignment */ shift = ftaddr & 0x3; if (shift == 0) { - sd_write32(pintfhdl, ftaddr, val, &err); + sd_write32(intfhdl, ftaddr, val, &err); } else { le_tmp = cpu_to_le32(val); - err = sd_cmd52_write(pintfhdl, ftaddr, 4, (u8 *)&le_tmp); + err = sd_cmd52_write(intfhdl, ftaddr, 4, (u8 *)&le_tmp); } return err; } -static s32 sdio_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, u8 *pbuf) +static s32 sdio_writeN(struct intf_hdl *intfhdl, u32 addr, u32 cnt, u8 *buf) { - struct adapter *padapter; - u8 bMacPwrCtrlOn; - u8 deviceId; + struct adapter *adapter; + u8 mac_pwr_ctrl_on; + u8 device_id; u16 offset; u32 ftaddr; u8 shift; s32 err; - padapter = pintfhdl->padapter; + adapter = intfhdl->padapter; err = 0; - ftaddr = _cvrt2ftaddr(addr, &deviceId, &offset); + ftaddr = _cvrt2ftaddr(addr, &device_id, &offset); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); if ( - ((deviceId == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || - (false == bMacPwrCtrlOn) || - (true == adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) - ) { - err = sd_cmd52_write(pintfhdl, ftaddr, cnt, pbuf); - return err; - } + ((device_id == WLAN_IOREG_DEVICE_ID) && (offset < 0x100)) || + (!mac_pwr_ctrl_on) || + (adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) + ) + return sd_cmd52_write(intfhdl, ftaddr, cnt, buf); shift = ftaddr & 0x3; if (shift == 0) { - err = sd_write(pintfhdl, ftaddr, cnt, pbuf); + err = sd_write(intfhdl, ftaddr, cnt, buf); } else { - u8 *ptmpbuf; + u8 *tmpbuf; u32 n; ftaddr &= ~(u16)0x3; n = cnt + shift; - ptmpbuf = rtw_malloc(n); - if (NULL == ptmpbuf) + tmpbuf = rtw_malloc(n); + if (!tmpbuf) return -1; - err = sd_read(pintfhdl, ftaddr, 4, ptmpbuf); + err = sd_read(intfhdl, ftaddr, 4, tmpbuf); if (err) { - kfree(ptmpbuf); + kfree(tmpbuf); return err; } - memcpy(ptmpbuf+shift, pbuf, cnt); - err = sd_write(pintfhdl, ftaddr, n, ptmpbuf); - kfree(ptmpbuf); + memcpy(tmpbuf+shift, buf, cnt); + err = sd_write(intfhdl, ftaddr, n, tmpbuf); + kfree(tmpbuf); } return err; } -static u8 sdio_f0_read8(struct intf_hdl *pintfhdl, u32 addr) +static u8 sdio_f0_read8(struct intf_hdl *intfhdl, u32 addr) { - return sd_f0_read8(pintfhdl, addr, NULL); + return sd_f0_read8(intfhdl, addr, NULL); } static void sdio_read_mem( - struct intf_hdl *pintfhdl, + struct intf_hdl *intfhdl, u32 addr, u32 cnt, u8 *rmem @@ -406,18 +395,18 @@ static void sdio_read_mem( { s32 err; - err = sdio_readN(pintfhdl, addr, cnt, rmem); + err = sdio_readN(intfhdl, addr, cnt, rmem); /* TODO: Report error is err not zero */ } static void sdio_write_mem( - struct intf_hdl *pintfhdl, + struct intf_hdl *intfhdl, u32 addr, u32 cnt, u8 *wmem ) { - sdio_writeN(pintfhdl, addr, cnt, wmem); + sdio_writeN(intfhdl, addr, cnt, wmem); } /* @@ -427,7 +416,7 @@ static void sdio_write_mem( *and make sure data transfer will be done in one command. * * Parameters: - *pintfhdl a pointer of intf_hdl + *intfhdl a pointer of intf_hdl *addr port ID *cnt size to read *rmem address to put data @@ -437,15 +426,15 @@ static void sdio_write_mem( *_FAIL(0) Fail */ static u32 sdio_read_port( - struct intf_hdl *pintfhdl, + struct intf_hdl *intfhdl, u32 addr, u32 cnt, u8 *mem ) { - struct adapter *padapter; + struct adapter *adapter; PSDIO_DATA psdio; - struct hal_com_data *phal; + struct hal_com_data *hal; u32 oldcnt; #ifdef SDIO_DYNAMIC_ALLOC_MEM u8 *oldmem; @@ -453,33 +442,18 @@ static u32 sdio_read_port( s32 err; - padapter = pintfhdl->padapter; - psdio = &adapter_to_dvobj(padapter)->intf_data; - phal = GET_HAL_DATA(padapter); + adapter = intfhdl->padapter; + psdio = &adapter_to_dvobj(adapter)->intf_data; + hal = GET_HAL_DATA(adapter); - HalSdioGetCmdAddr8723BSdio(padapter, addr, phal->SdioRxFIFOCnt++, &addr); + HalSdioGetCmdAddr8723BSdio(adapter, addr, hal->SdioRxFIFOCnt++, &addr); oldcnt = cnt; if (cnt > psdio->block_transfer_len) cnt = _RND(cnt, psdio->block_transfer_len); /* cnt = sdio_align_size(cnt); */ - if (oldcnt != cnt) { -#ifdef SDIO_DYNAMIC_ALLOC_MEM - oldmem = mem; - mem = rtw_malloc(cnt); - if (mem == NULL) { - DBG_8192C(KERN_WARNING "%s: allocate memory %d bytes fail!\n", __func__, cnt); - mem = oldmem; - oldmem == NULL; - } -#else - /* in this case, caller should gurante the buffer is big enough */ - /* to receive data after alignment */ -#endif - } - - err = _sd_read(pintfhdl, addr, cnt, mem); + err = _sd_read(intfhdl, addr, cnt, mem); #ifdef SDIO_DYNAMIC_ALLOC_MEM if ((oldcnt != cnt) && (oldmem)) { @@ -500,7 +474,7 @@ static u32 sdio_read_port( *and make sure data could be written in one command. * * Parameters: - *pintfhdl a pointer of intf_hdl + *intfhdl a pointer of intf_hdl *addr port ID *cnt size to write *wmem data pointer to write @@ -510,33 +484,33 @@ static u32 sdio_read_port( *_FAIL(0) Fail */ static u32 sdio_write_port( - struct intf_hdl *pintfhdl, + struct intf_hdl *intfhdl, u32 addr, u32 cnt, u8 *mem ) { - struct adapter *padapter; + struct adapter *adapter; PSDIO_DATA psdio; s32 err; struct xmit_buf *xmitbuf = (struct xmit_buf *)mem; - padapter = pintfhdl->padapter; - psdio = &adapter_to_dvobj(padapter)->intf_data; + adapter = intfhdl->padapter; + psdio = &adapter_to_dvobj(adapter)->intf_data; - if (padapter->hw_init_completed == false) { - DBG_871X("%s [addr = 0x%x cnt =%d] padapter->hw_init_completed == false\n", __func__, addr, cnt); + if (!adapter->hw_init_completed) { + DBG_871X("%s [addr = 0x%x cnt =%d] adapter->hw_init_completed == false\n", __func__, addr, cnt); return _FAIL; } cnt = _RND4(cnt); - HalSdioGetCmdAddr8723BSdio(padapter, addr, cnt >> 2, &addr); + HalSdioGetCmdAddr8723BSdio(adapter, addr, cnt >> 2, &addr); if (cnt > psdio->block_transfer_len) cnt = _RND(cnt, psdio->block_transfer_len); /* cnt = sdio_align_size(cnt); */ - err = sd_write(pintfhdl, addr, cnt, xmitbuf->pdata); + err = sd_write(intfhdl, addr, cnt, xmitbuf->pdata); rtw_sctx_done_err( &xmitbuf->sctx, @@ -548,61 +522,59 @@ static u32 sdio_write_port( return _SUCCESS; } -void sdio_set_intf_ops(struct adapter *padapter, struct _io_ops *pops) +void sdio_set_intf_ops(struct adapter *adapter, struct _io_ops *ops) { - pops->_read8 = &sdio_read8; - pops->_read16 = &sdio_read16; - pops->_read32 = &sdio_read32; - pops->_read_mem = &sdio_read_mem; - pops->_read_port = &sdio_read_port; - - pops->_write8 = &sdio_write8; - pops->_write16 = &sdio_write16; - pops->_write32 = &sdio_write32; - pops->_writeN = &sdio_writeN; - pops->_write_mem = &sdio_write_mem; - pops->_write_port = &sdio_write_port; - - pops->_sd_f0_read8 = sdio_f0_read8; + ops->_read8 = &sdio_read8; + ops->_read16 = &sdio_read16; + ops->_read32 = &sdio_read32; + ops->_read_mem = &sdio_read_mem; + ops->_read_port = &sdio_read_port; + + ops->_write8 = &sdio_write8; + ops->_write16 = &sdio_write16; + ops->_write32 = &sdio_write32; + ops->_writeN = &sdio_writeN; + ops->_write_mem = &sdio_write_mem; + ops->_write_port = &sdio_write_port; + + ops->_sd_f0_read8 = sdio_f0_read8; } /* * Todo: align address to 4 bytes. */ static s32 _sdio_local_read( - struct adapter *padapter, + struct adapter *adapter, u32 addr, u32 cnt, - u8 *pbuf + u8 *buf ) { - struct intf_hdl *pintfhdl; - u8 bMacPwrCtrlOn; + struct intf_hdl *intfhdl; + u8 mac_pwr_ctrl_on; s32 err; - u8 *ptmpbuf; + u8 *tmpbuf; u32 n; - pintfhdl = &padapter->iopriv.intf; + intfhdl = &adapter->iopriv.intf; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); - if (false == bMacPwrCtrlOn) { - err = _sd_cmd52_read(pintfhdl, addr, cnt, pbuf); - return err; - } + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); + if (!mac_pwr_ctrl_on) + return _sd_cmd52_read(intfhdl, addr, cnt, buf); n = RND4(cnt); - ptmpbuf = rtw_malloc(n); - if (!ptmpbuf) + tmpbuf = rtw_malloc(n); + if (!tmpbuf) return (-1); - err = _sd_read(pintfhdl, addr, n, ptmpbuf); + err = _sd_read(intfhdl, addr, n, tmpbuf); if (!err) - memcpy(pbuf, ptmpbuf, cnt); + memcpy(buf, tmpbuf, cnt); - kfree(ptmpbuf); + kfree(tmpbuf); return err; } @@ -611,41 +583,39 @@ static s32 _sdio_local_read( * Todo: align address to 4 bytes. */ s32 sdio_local_read( - struct adapter *padapter, + struct adapter *adapter, u32 addr, u32 cnt, - u8 *pbuf + u8 *buf ) { - struct intf_hdl *pintfhdl; - u8 bMacPwrCtrlOn; + struct intf_hdl *intfhdl; + u8 mac_pwr_ctrl_on; s32 err; - u8 *ptmpbuf; + u8 *tmpbuf; u32 n; - pintfhdl = &padapter->iopriv.intf; + intfhdl = &adapter->iopriv.intf; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); if ( - (false == bMacPwrCtrlOn) || - (true == adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) - ) { - err = sd_cmd52_read(pintfhdl, addr, cnt, pbuf); - return err; - } + (!mac_pwr_ctrl_on) || + (adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) + ) + return sd_cmd52_read(intfhdl, addr, cnt, buf); n = RND4(cnt); - ptmpbuf = rtw_malloc(n); - if (!ptmpbuf) + tmpbuf = rtw_malloc(n); + if (!tmpbuf) return (-1); - err = sd_read(pintfhdl, addr, n, ptmpbuf); + err = sd_read(intfhdl, addr, n, tmpbuf); if (!err) - memcpy(pbuf, ptmpbuf, cnt); + memcpy(buf, tmpbuf, cnt); - kfree(ptmpbuf); + kfree(tmpbuf); return err; } @@ -654,16 +624,16 @@ s32 sdio_local_read( * Todo: align address to 4 bytes. */ s32 sdio_local_write( - struct adapter *padapter, + struct adapter *adapter, u32 addr, u32 cnt, - u8 *pbuf + u8 *buf ) { - struct intf_hdl *pintfhdl; - u8 bMacPwrCtrlOn; + struct intf_hdl *intfhdl; + u8 mac_pwr_ctrl_on; s32 err; - u8 *ptmpbuf; + u8 *tmpbuf; if (addr & 0x3) DBG_8192C("%s, address must be 4 bytes alignment\n", __func__); @@ -671,101 +641,99 @@ s32 sdio_local_write( if (cnt & 0x3) DBG_8192C("%s, size must be the multiple of 4\n", __func__); - pintfhdl = &padapter->iopriv.intf; + intfhdl = &adapter->iopriv.intf; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); if ( - (false == bMacPwrCtrlOn) || - (true == adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) - ) { - err = sd_cmd52_write(pintfhdl, addr, cnt, pbuf); - return err; - } + (!mac_pwr_ctrl_on) || + (adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) + ) + return sd_cmd52_write(intfhdl, addr, cnt, buf); - ptmpbuf = rtw_malloc(cnt); - if (!ptmpbuf) + tmpbuf = rtw_malloc(cnt); + if (!tmpbuf) return (-1); - memcpy(ptmpbuf, pbuf, cnt); + memcpy(tmpbuf, buf, cnt); - err = sd_write(pintfhdl, addr, cnt, ptmpbuf); + err = sd_write(intfhdl, addr, cnt, tmpbuf); - kfree(ptmpbuf); + kfree(tmpbuf); return err; } -u8 SdioLocalCmd52Read1Byte(struct adapter *padapter, u32 addr) +u8 SdioLocalCmd52Read1Byte(struct adapter *adapter, u32 addr) { u8 val = 0; - struct intf_hdl *pintfhdl = &padapter->iopriv.intf; + struct intf_hdl *intfhdl = &adapter->iopriv.intf; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - sd_cmd52_read(pintfhdl, addr, 1, &val); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + sd_cmd52_read(intfhdl, addr, 1, &val); return val; } -static u16 SdioLocalCmd52Read2Byte(struct adapter *padapter, u32 addr) +static u16 SdioLocalCmd52Read2Byte(struct adapter *adapter, u32 addr) { __le16 val = 0; - struct intf_hdl *pintfhdl = &padapter->iopriv.intf; + struct intf_hdl *intfhdl = &adapter->iopriv.intf; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - sd_cmd52_read(pintfhdl, addr, 2, (u8 *)&val); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + sd_cmd52_read(intfhdl, addr, 2, (u8 *)&val); return le16_to_cpu(val); } -static u32 SdioLocalCmd53Read4Byte(struct adapter *padapter, u32 addr) +static u32 SdioLocalCmd53Read4Byte(struct adapter *adapter, u32 addr) { - u8 bMacPwrCtrlOn; + u8 mac_pwr_ctrl_on; u32 val = 0; - struct intf_hdl *pintfhdl = &padapter->iopriv.intf; + struct intf_hdl *intfhdl = &adapter->iopriv.intf; __le32 le_tmp; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - rtw_hal_get_hwreg(padapter, HW_VAR_APFM_ON_MAC, &bMacPwrCtrlOn); - if (!bMacPwrCtrlOn || adapter_to_pwrctl(padapter)->bFwCurrentInPSMode) { - sd_cmd52_read(pintfhdl, addr, 4, (u8 *)&le_tmp); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + rtw_hal_get_hwreg(adapter, HW_VAR_APFM_ON_MAC, &mac_pwr_ctrl_on); + if (!mac_pwr_ctrl_on || adapter_to_pwrctl(adapter)->bFwCurrentInPSMode) { + sd_cmd52_read(intfhdl, addr, 4, (u8 *)&le_tmp); val = le32_to_cpu(le_tmp); } else { - val = sd_read32(pintfhdl, addr, NULL); + val = sd_read32(intfhdl, addr, NULL); } return val; } -void SdioLocalCmd52Write1Byte(struct adapter *padapter, u32 addr, u8 v) +void SdioLocalCmd52Write1Byte(struct adapter *adapter, u32 addr, u8 v) { - struct intf_hdl *pintfhdl = &padapter->iopriv.intf; + struct intf_hdl *intfhdl = &adapter->iopriv.intf; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); - sd_cmd52_write(pintfhdl, addr, 1, &v); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + sd_cmd52_write(intfhdl, addr, 1, &v); } -static void SdioLocalCmd52Write4Byte(struct adapter *padapter, u32 addr, u32 v) +static void SdioLocalCmd52Write4Byte(struct adapter *adapter, u32 addr, u32 v) { - struct intf_hdl *pintfhdl = &padapter->iopriv.intf; + struct intf_hdl *intfhdl = &adapter->iopriv.intf; __le32 le_tmp; - HalSdioGetCmdAddr8723BSdio(padapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); + HalSdioGetCmdAddr8723BSdio(adapter, SDIO_LOCAL_DEVICE_ID, addr, &addr); le_tmp = cpu_to_le32(v); - sd_cmd52_write(pintfhdl, addr, 4, (u8 *)&le_tmp); + sd_cmd52_write(intfhdl, addr, 4, (u8 *)&le_tmp); } -static s32 ReadInterrupt8723BSdio(struct adapter *padapter, u32 *phisr) +static s32 ReadInterrupt8723BSdio(struct adapter *adapter, u32 *phisr) { u32 hisr, himr; u8 val8, hisr_len; - if (phisr == NULL) + if (!phisr) return false; - himr = GET_HAL_DATA(padapter)->sdio_himr; + himr = GET_HAL_DATA(adapter)->sdio_himr; /* decide how many bytes need to be read */ hisr_len = 0; @@ -777,7 +745,7 @@ static s32 ReadInterrupt8723BSdio(struct adapter *padapter, u32 *phisr) hisr = 0; while (hisr_len != 0) { hisr_len--; - val8 = SdioLocalCmd52Read1Byte(padapter, SDIO_REG_HISR+hisr_len); + val8 = SdioLocalCmd52Read1Byte(adapter, SDIO_REG_HISR+hisr_len); hisr |= (val8 << (8*hisr_len)); } @@ -795,13 +763,13 @@ static s32 ReadInterrupt8723BSdio(struct adapter *padapter, u32 *phisr) /* */ /* Created by Roger, 2011.02.11. */ /* */ -void InitInterrupt8723BSdio(struct adapter *padapter) +void InitInterrupt8723BSdio(struct adapter *adapter) { - struct hal_com_data *pHalData; + struct hal_com_data *haldata; - pHalData = GET_HAL_DATA(padapter); - pHalData->sdio_himr = (u32)( \ + haldata = GET_HAL_DATA(adapter); + haldata->sdio_himr = (u32)( \ SDIO_HIMR_RX_REQUEST_MSK | SDIO_HIMR_AVAL_MSK | /* SDIO_HIMR_TXERR_MSK | */ @@ -829,14 +797,14 @@ void InitInterrupt8723BSdio(struct adapter *padapter) /* */ /* Created by Roger, 2011.08.03. */ /* */ -void InitSysInterrupt8723BSdio(struct adapter *padapter) +void InitSysInterrupt8723BSdio(struct adapter *adapter) { - struct hal_com_data *pHalData; + struct hal_com_data *haldata; - pHalData = GET_HAL_DATA(padapter); + haldata = GET_HAL_DATA(adapter); - pHalData->SysIntrMask = ( \ + haldata->SysIntrMask = ( \ /* HSIMR_GPIO12_0_INT_EN | */ /* HSIMR_SPS_OCP_INT_EN | */ /* HSIMR_RON_INT_EN | */ @@ -855,20 +823,19 @@ void InitSysInterrupt8723BSdio(struct adapter *padapter) /* */ /* Created by Roger, 2011.02.11. */ /* */ -void ClearInterrupt8723BSdio(struct adapter *padapter) +void clearinterrupt8723bsdio(struct adapter *adapter) { - struct hal_com_data *pHalData; + struct hal_com_data *haldata; u8 *clear; - - if (true == padapter->bSurpriseRemoved) + if (adapter->bSurpriseRemoved) return; - pHalData = GET_HAL_DATA(padapter); + haldata = GET_HAL_DATA(adapter); clear = rtw_zmalloc(4); /* Clear corresponding HISR Content if needed */ - *(__le32 *)clear = cpu_to_le32(pHalData->sdio_hisr & MASK_SDIO_HISR_CLEAR); + *(__le32 *)clear = cpu_to_le32(haldata->sdio_hisr & MASK_SDIO_HISR_CLEAR); if (*(__le32 *)clear) { /* Perform write one clear operation */ sdio_local_write(padapter, SDIO_REG_HISR, 4, clear); @@ -888,16 +855,16 @@ void ClearInterrupt8723BSdio(struct adapter *padapter) /* */ /* Created by Roger, 2011.02.11. */ /* */ -void EnableInterrupt8723BSdio(struct adapter *padapter) +void EnableInterrupt8723BSdio(struct adapter *adapter) { - struct hal_com_data *pHalData; + struct hal_com_data *haldata; __le32 himr; u32 tmp; - pHalData = GET_HAL_DATA(padapter); + haldata = GET_HAL_DATA(adapter); - himr = cpu_to_le32(pHalData->sdio_himr); - sdio_local_write(padapter, SDIO_REG_HIMR, 4, (u8 *)&himr); + himr = cpu_to_le32(haldata->sdio_himr); + sdio_local_write(adapter, SDIO_REG_HIMR, 4, (u8 *)&himr); RT_TRACE( _module_hci_ops_c_, @@ -905,13 +872,13 @@ void EnableInterrupt8723BSdio(struct adapter *padapter) ( "%s: enable SDIO HIMR = 0x%08X\n", __func__, - pHalData->sdio_himr + haldata->sdio_himr ) ); /* Update current system IMR settings */ - tmp = rtw_read32(padapter, REG_HSIMR); - rtw_write32(padapter, REG_HSIMR, tmp | pHalData->SysIntrMask); + tmp = rtw_read32(adapter, REG_HSIMR); + rtw_write32(adapter, REG_HSIMR, tmp | haldata->SysIntrMask); RT_TRACE( _module_hci_ops_c_, @@ -919,7 +886,7 @@ void EnableInterrupt8723BSdio(struct adapter *padapter) ( "%s: enable HSIMR = 0x%08X\n", __func__, - pHalData->SysIntrMask + haldata->SysIntrMask ) ); @@ -928,7 +895,7 @@ void EnableInterrupt8723BSdio(struct adapter *padapter) /* So we need to clear all C2H events that FW has notified, otherwise FW won't schedule any commands anymore. */ /* 2011.10.19. */ /* */ - rtw_write8(padapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE); + rtw_write8(adapter, REG_C2HEVT_CLEAR, C2H_EVT_HOST_CLOSE); } /* */ @@ -940,12 +907,12 @@ void EnableInterrupt8723BSdio(struct adapter *padapter) /* */ /* Created by Roger, 2011.02.11. */ /* */ -void DisableInterrupt8723BSdio(struct adapter *padapter) +void DisableInterrupt8723BSdio(struct adapter *adapter) { __le32 himr; himr = cpu_to_le32(SDIO_HIMR_DISABLED); - sdio_local_write(padapter, SDIO_REG_HIMR, 4, (u8 *)&himr); + sdio_local_write(adapter, SDIO_REG_HIMR, 4, (u8 *)&himr); } /* */ @@ -957,27 +924,27 @@ void DisableInterrupt8723BSdio(struct adapter *padapter) /* */ /* Created by Isaac, 2013.09.10. */ /* */ -u8 CheckIPSStatus(struct adapter *padapter) +u8 CheckIPSStatus(struct adapter *adapter) { DBG_871X( "%s(): Read 0x100 = 0x%02x 0x86 = 0x%02x\n", __func__, - rtw_read8(padapter, 0x100), - rtw_read8(padapter, 0x86) + rtw_read8(adapter, 0x100), + rtw_read8(adapter, 0x86) ); - if (rtw_read8(padapter, 0x100) == 0xEA) + if (rtw_read8(adapter, 0x100) == 0xEA) return true; else return false; } -static struct recv_buf *sd_recv_rxfifo(struct adapter *padapter, u32 size) +static struct recv_buf *sd_recv_rxfifo(struct adapter *adapter, u32 size) { u32 readsize, ret; - u8 *preadbuf; - struct recv_priv *precvpriv; - struct recv_buf *precvbuf; + u8 *readbuf; + struct recv_priv *recv_priv; + struct recv_buf *recvbuf; /* Patch for some SDIO Host 4 bytes issue */ @@ -985,37 +952,37 @@ static struct recv_buf *sd_recv_rxfifo(struct adapter *padapter, u32 size) readsize = RND4(size); /* 3 1. alloc recvbuf */ - precvpriv = &padapter->recvpriv; - precvbuf = rtw_dequeue_recvbuf(&precvpriv->free_recv_buf_queue); - if (precvbuf == NULL) { + recv_priv = &adapter->recvpriv; + recvbuf = rtw_dequeue_recvbuf(&recv_priv->free_recv_buf_queue); + if (!recvbuf) { DBG_871X_LEVEL(_drv_err_, "%s: alloc recvbuf FAIL!\n", __func__); return NULL; } /* 3 2. alloc skb */ - if (precvbuf->pskb == NULL) { + if (!recvbuf->pskb) { SIZE_PTR tmpaddr = 0; SIZE_PTR alignment = 0; - precvbuf->pskb = rtw_skb_alloc(MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ); + recvbuf->pskb = rtw_skb_alloc(MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ); - if (precvbuf->pskb) { - precvbuf->pskb->dev = padapter->pnetdev; + if (recvbuf->pskb) { + recvbuf->pskb->dev = adapter->pnetdev; - tmpaddr = (SIZE_PTR)precvbuf->pskb->data; + tmpaddr = (SIZE_PTR)recvbuf->pskb->data; alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1); - skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment)); + skb_reserve(recvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment)); } - if (precvbuf->pskb == NULL) { + if (!recvbuf->pskb) { DBG_871X("%s: alloc_skb fail! read =%d\n", __func__, readsize); return NULL; } } /* 3 3. read data from rxfifo */ - preadbuf = precvbuf->pskb->data; - ret = sdio_read_port(&padapter->iopriv.intf, WLAN_RX0FF_DEVICE_ID, readsize, preadbuf); + readbuf = recvbuf->pskb->data; + ret = sdio_read_port(&adapter->iopriv.intf, WLAN_RX0FF_DEVICE_ID, readsize, readbuf); if (ret == _FAIL) { RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("%s: read port FAIL!\n", __func__)); return NULL; @@ -1023,72 +990,72 @@ static struct recv_buf *sd_recv_rxfifo(struct adapter *padapter, u32 size) /* 3 4. init recvbuf */ - precvbuf->len = size; - precvbuf->phead = precvbuf->pskb->head; - precvbuf->pdata = precvbuf->pskb->data; - skb_set_tail_pointer(precvbuf->pskb, size); - precvbuf->ptail = skb_tail_pointer(precvbuf->pskb); - precvbuf->pend = skb_end_pointer(precvbuf->pskb); - - return precvbuf; + recvbuf->len = size; + recvbuf->phead = recvbuf->pskb->head; + recvbuf->pdata = recvbuf->pskb->data; + skb_set_tail_pointer(recvbuf->pskb, size); + recvbuf->ptail = skb_tail_pointer(recvbuf->pskb); + recvbuf->pend = skb_end_pointer(recvbuf->pskb); + + return recvbuf; } -static void sd_rxhandler(struct adapter *padapter, struct recv_buf *precvbuf) +static void sd_rxhandler(struct adapter *adapter, struct recv_buf *recvbuf) { - struct recv_priv *precvpriv; - struct __queue *ppending_queue; + struct recv_priv *recv_priv; + struct __queue *pending_queue; - precvpriv = &padapter->recvpriv; - ppending_queue = &precvpriv->recv_buf_pending_queue; + recv_priv = &adapter->recvpriv; + pending_queue = &recv_priv->recv_buf_pending_queue; /* 3 1. enqueue recvbuf */ - rtw_enqueue_recvbuf(precvbuf, ppending_queue); + rtw_enqueue_recvbuf(recvbuf, pending_queue); /* 3 2. schedule tasklet */ - tasklet_schedule(&precvpriv->recv_tasklet); + tasklet_schedule(&recv_priv->recv_tasklet); } -void sd_int_dpc(struct adapter *padapter) +void sd_int_dpc(struct adapter *adapter) { - struct hal_com_data *phal; + struct hal_com_data *hal; struct dvobj_priv *dvobj; - struct intf_hdl *pintfhdl = &padapter->iopriv.intf; + struct intf_hdl *intfhdl = &adapter->iopriv.intf; struct pwrctrl_priv *pwrctl; - phal = GET_HAL_DATA(padapter); - dvobj = adapter_to_dvobj(padapter); + hal = GET_HAL_DATA(adapter); + dvobj = adapter_to_dvobj(adapter); pwrctl = dvobj_to_pwrctl(dvobj); - if (phal->sdio_hisr & SDIO_HISR_AVAL) { + if (hal->sdio_hisr & SDIO_HISR_AVAL) { u8 freepage[4]; - _sdio_local_read(padapter, SDIO_REG_FREE_TXPG, 4, freepage); - up(&(padapter->xmitpriv.xmit_sema)); + _sdio_local_read(adapter, SDIO_REG_FREE_TXPG, 4, freepage); + up(&(adapter->xmitpriv.xmit_sema)); } - if (phal->sdio_hisr & SDIO_HISR_CPWM1) { + if (hal->sdio_hisr & SDIO_HISR_CPWM1) { struct reportpwrstate_parm report; u8 bcancelled; _cancel_timer(&(pwrctl->pwr_rpwm_timer), &bcancelled); - report.state = SdioLocalCmd52Read1Byte(padapter, SDIO_REG_HCPWM1_8723B); + report.state = SdioLocalCmd52Read1Byte(adapter, SDIO_REG_HCPWM1_8723B); - /* cpwm_int_hdl(padapter, &report); */ + /* cpwm_int_hdl(adapter, &report); */ _set_workitem(&(pwrctl->cpwm_event)); } - if (phal->sdio_hisr & SDIO_HISR_TXERR) { + if (hal->sdio_hisr & SDIO_HISR_TXERR) { u8 *status; u32 addr; status = rtw_malloc(4); if (status) { addr = REG_TXDMA_STATUS; - HalSdioGetCmdAddr8723BSdio(padapter, WLAN_IOREG_DEVICE_ID, addr, &addr); - _sd_read(pintfhdl, addr, 4, status); - _sd_write(pintfhdl, addr, 4, status); + HalSdioGetCmdAddr8723BSdio(adapter, WLAN_IOREG_DEVICE_ID, addr, &addr); + _sd_read(intfhdl, addr, 4, status); + _sd_write(intfhdl, addr, 4, status); DBG_8192C("%s: SDIO_HISR_TXERR (0x%08x)\n", __func__, le32_to_cpu(*(u32 *)status)); kfree(status); } else { @@ -1096,71 +1063,71 @@ void sd_int_dpc(struct adapter *padapter) } } - if (phal->sdio_hisr & SDIO_HISR_TXBCNOK) { + if (hal->sdio_hisr & SDIO_HISR_TXBCNOK) { DBG_8192C("%s: SDIO_HISR_TXBCNOK\n", __func__); } - if (phal->sdio_hisr & SDIO_HISR_TXBCNERR) { + if (hal->sdio_hisr & SDIO_HISR_TXBCNERR) { DBG_8192C("%s: SDIO_HISR_TXBCNERR\n", __func__); } #ifndef CONFIG_C2H_PACKET_EN - if (phal->sdio_hisr & SDIO_HISR_C2HCMD) { + if (hal->sdio_hisr & SDIO_HISR_C2HCMD) { struct c2h_evt_hdr_88xx *c2h_evt; DBG_8192C("%s: C2H Command\n", __func__); c2h_evt = rtw_zmalloc(16); if (c2h_evt != NULL) { - if (rtw_hal_c2h_evt_read(padapter, (u8 *)c2h_evt) == _SUCCESS) { + if (rtw_hal_c2h_evt_read(adapter, (u8 *)c2h_evt) == _SUCCESS) { if (c2h_id_filter_ccx_8723b((u8 *)c2h_evt)) { /* Handle CCX report here */ - rtw_hal_c2h_handler(padapter, (u8 *)c2h_evt); + rtw_hal_c2h_handler(adapter, (u8 *)c2h_evt); kfree((u8 *)c2h_evt); } else { - rtw_c2h_wk_cmd(padapter, (u8 *)c2h_evt); + rtw_c2h_wk_cmd(adapter, (u8 *)c2h_evt); } } } else { /* Error handling for malloc fail */ - if (rtw_cbuf_push(padapter->evtpriv.c2h_queue, NULL) != _SUCCESS) + if (rtw_cbuf_push(adapter->evtpriv.c2h_queue, NULL) != _SUCCESS) DBG_871X("%s rtw_cbuf_push fail\n", __func__); - _set_workitem(&padapter->evtpriv.c2h_wk); + _set_workitem(&adapter->evtpriv.c2h_wk); } } #endif - if (phal->sdio_hisr & SDIO_HISR_RXFOVW) { + if (hal->sdio_hisr & SDIO_HISR_RXFOVW) { DBG_8192C("%s: Rx Overflow\n", __func__); } - if (phal->sdio_hisr & SDIO_HISR_RXERR) { + if (hal->sdio_hisr & SDIO_HISR_RXERR) { DBG_8192C("%s: Rx Error\n", __func__); } - if (phal->sdio_hisr & SDIO_HISR_RX_REQUEST) { - struct recv_buf *precvbuf; + if (hal->sdio_hisr & SDIO_HISR_RX_REQUEST) { + struct recv_buf *recvbuf; int alloc_fail_time = 0; u32 hisr; -/* DBG_8192C("%s: RX Request, size =%d\n", __func__, phal->SdioRxFIFOSize); */ - phal->sdio_hisr ^= SDIO_HISR_RX_REQUEST; +/* DBG_8192C("%s: RX Request, size =%d\n", __func__, hal->SdioRxFIFOSize); */ + hal->sdio_hisr ^= SDIO_HISR_RX_REQUEST; do { - phal->SdioRxFIFOSize = SdioLocalCmd52Read2Byte(padapter, SDIO_REG_RX0_REQ_LEN); - if (phal->SdioRxFIFOSize != 0) { - precvbuf = sd_recv_rxfifo(padapter, phal->SdioRxFIFOSize); - if (precvbuf) - sd_rxhandler(padapter, precvbuf); + hal->SdioRxFIFOSize = SdioLocalCmd52Read2Byte(adapter, SDIO_REG_RX0_REQ_LEN); + if (hal->SdioRxFIFOSize != 0) { + recvbuf = sd_recv_rxfifo(adapter, hal->SdioRxFIFOSize); + if (recvbuf) + sd_rxhandler(adapter, recvbuf); else { alloc_fail_time++; - DBG_871X("precvbuf is Null for %d times because alloc memory failed\n", alloc_fail_time); + DBG_871X("recvbuf is Null for %d times because alloc memory failed\n", alloc_fail_time); if (alloc_fail_time >= 10) break; } - phal->SdioRxFIFOSize = 0; + hal->SdioRxFIFOSize = 0; } else break; hisr = 0; - ReadInterrupt8723BSdio(padapter, &hisr); + ReadInterrupt8723BSdio(adapter, &hisr); hisr &= SDIO_HISR_RX_REQUEST; if (!hisr) break; @@ -1172,38 +1139,37 @@ void sd_int_dpc(struct adapter *padapter) } } -void sd_int_hdl(struct adapter *padapter) +void sd_int_hdl(struct adapter *adapter) { - struct hal_com_data *phal; + struct hal_com_data *hal; if ( - (padapter->bDriverStopped == true) || - (padapter->bSurpriseRemoved == true) + (adapter->bDriverStopped) || (adapter->bSurpriseRemoved) ) return; - phal = GET_HAL_DATA(padapter); + hal = GET_HAL_DATA(adapter); - phal->sdio_hisr = 0; - ReadInterrupt8723BSdio(padapter, &phal->sdio_hisr); + hal->sdio_hisr = 0; + ReadInterrupt8723BSdio(adapter, &hal->sdio_hisr); - if (phal->sdio_hisr & phal->sdio_himr) { + if (hal->sdio_hisr & hal->sdio_himr) { u32 v32; - phal->sdio_hisr &= phal->sdio_himr; + hal->sdio_hisr &= hal->sdio_himr; /* clear HISR */ - v32 = phal->sdio_hisr & MASK_SDIO_HISR_CLEAR; + v32 = hal->sdio_hisr & MASK_SDIO_HISR_CLEAR; if (v32) { - SdioLocalCmd52Write4Byte(padapter, SDIO_REG_HISR, v32); + SdioLocalCmd52Write4Byte(adapter, SDIO_REG_HISR, v32); } - sd_int_dpc(padapter); + sd_int_dpc(adapter); } else { RT_TRACE(_module_hci_ops_c_, _drv_err_, ("%s: HISR(0x%08x) and HIMR(0x%08x) not match!\n", - __func__, phal->sdio_hisr, phal->sdio_himr)); + __func__, hal->sdio_hisr, hal->sdio_himr)); } } @@ -1217,27 +1183,27 @@ void sd_int_hdl(struct adapter *padapter) /* */ /* Created by Roger, 2011.01.28. */ /* */ -u8 HalQueryTxBufferStatus8723BSdio(struct adapter *padapter) +u8 HalQueryTxBufferStatus8723BSdio(struct adapter *adapter) { - struct hal_com_data *phal; - u32 NumOfFreePage; - /* _irqL irql; */ + struct hal_com_data *hal; + u32 numof_free_page; + /* _irql irql; */ - phal = GET_HAL_DATA(padapter); + hal = GET_HAL_DATA(adapter); - NumOfFreePage = SdioLocalCmd53Read4Byte(padapter, SDIO_REG_FREE_TXPG); + numof_free_page = SdioLocalCmd53Read4Byte(adapter, SDIO_REG_FREE_TXPG); /* spin_lock_bh(&phal->SdioTxFIFOFreePageLock); */ - memcpy(phal->SdioTxFIFOFreePage, &NumOfFreePage, 4); + memcpy(hal->SdioTxFIFOFreePage, &numof_free_page, 4); RT_TRACE(_module_hci_ops_c_, _drv_notice_, ("%s: Free page for HIQ(%#x), MIDQ(%#x), LOWQ(%#x), PUBQ(%#x)\n", __func__, - phal->SdioTxFIFOFreePage[HI_QUEUE_IDX], - phal->SdioTxFIFOFreePage[MID_QUEUE_IDX], - phal->SdioTxFIFOFreePage[LOW_QUEUE_IDX], - phal->SdioTxFIFOFreePage[PUBLIC_QUEUE_IDX])); - /* spin_unlock_bh(&phal->SdioTxFIFOFreePageLock); */ + hal->SdioTxFIFOFreePage[HI_QUEUE_IDX], + hal->SdioTxFIFOFreePage[MID_QUEUE_IDX], + hal->SdioTxFIFOFreePage[LOW_QUEUE_IDX], + hal->SdioTxFIFOFreePage[PUBLIC_QUEUE_IDX])); + /* spin_unlock_bh(&hal->SdioTxFIFOFreePageLock); */ return true; } @@ -1246,19 +1212,19 @@ u8 HalQueryTxBufferStatus8723BSdio(struct adapter *padapter) /* Description: */ /* Query SDIO Local register to get the current number of TX OQT Free Space. */ /* */ -u8 HalQueryTxOQTBufferStatus8723BSdio(struct adapter *padapter) +u8 HalQueryTxOQTBufferStatus8723BSdio(struct adapter *adapter) { - struct hal_com_data *pHalData = GET_HAL_DATA(padapter); + struct hal_com_data *haldata = GET_HAL_DATA(adapter); - pHalData->SdioTxOQTFreeSpace = SdioLocalCmd52Read1Byte(padapter, SDIO_REG_OQT_FREE_PG); + haldata->SdioTxOQTFreeSpace = SdioLocalCmd52Read1Byte(adapter, SDIO_REG_OQT_FREE_PG); return true; } #if defined(CONFIG_WOWLAN) || defined(CONFIG_AP_WOWLAN) -u8 RecvOnePkt(struct adapter *padapter, u32 size) +u8 RecvOnePkt(struct adapter *adapter, u32 size) { - struct recv_buf *precvbuf; - struct dvobj_priv *psddev; + struct recv_buf *recvbuf; + struct dvobj_priv *sddev; PSDIO_DATA psdio_data; struct sdio_func *func; @@ -1266,22 +1232,22 @@ u8 RecvOnePkt(struct adapter *padapter, u32 size) DBG_871X("+%s: size: %d+\n", __func__, size); - if (padapter == NULL) { - DBG_871X(KERN_ERR "%s: padapter is NULL!\n", __func__); + if (!adapter) { + DBG_871X(KERN_ERR "%s: adapter is NULL!\n", __func__); return false; } - psddev = adapter_to_dvobj(padapter); - psdio_data = &psddev->intf_data; + sddev = adapter_to_dvobj(adapter); + psdio_data = &sddev->intf_data; func = psdio_data->func; if (size) { sdio_claim_host(func); - precvbuf = sd_recv_rxfifo(padapter, size); + recvbuf = sd_recv_rxfifo(adapter, size); - if (precvbuf) { + if (recvbuf) { /* printk("Completed Recv One Pkt.\n"); */ - sd_rxhandler(padapter, precvbuf); + sd_rxhandler(adapter, recvbuf); res = true; } else { res = false; diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c index 3fca0c2d4c8d..cc18d0ad7d7b 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c @@ -371,7 +371,7 @@ static char *translate_scan(struct adapter *padapter, u8 *wpsie_ptr = NULL; uint wps_ielen = 0; - u8 *ie_ptr = pnetwork->network.IEs + ie_offset; + u8 *ie_ptr; total_ielen = pnetwork->network.IELength - ie_offset; if (pnetwork->network.Reserved[0] == 2) { /* Probe Request */ @@ -967,7 +967,7 @@ static int rtw_wx_set_mode(struct net_device *dev, struct iw_request_info *a, break; default : - ret = -EINVAL;; + ret = -EINVAL; RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_err_, ("\n Mode: %s is not supported \n", iw_operation_mode[wrqu->mode])); goto exit; } diff --git a/drivers/staging/rtlwifi/Kconfig b/drivers/staging/rtlwifi/Kconfig index cb3a29ae764b..b6b03950987b 100644 --- a/drivers/staging/rtlwifi/Kconfig +++ b/drivers/staging/rtlwifi/Kconfig @@ -6,16 +6,6 @@ config R8822BE This is the staging driver for Realtek RTL8822BE 802.11ac PCIe wireless network adapters. -config RTLHALMAC_ST - tristate - depends on R8822BE - default m - -config RTLPHYDM_ST - tristate - depends on R8822BE - default m - config RTLWIFI_DEBUG_ST boolean depends on R8822BE diff --git a/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c b/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c index 52620b72cfa9..493011a54e64 100644 --- a/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c +++ b/drivers/staging/rtlwifi/btcoexist/halbtcoutsrc.c @@ -800,7 +800,7 @@ static void halbtc_display_wifi_status(struct btc_coexist *btcoexist, u32 wifi_link_status = 0x0; bool bt_hs_on = false, under_ips = false, under_lps = false; bool low_power = false, dc_mode = false; - u8 wifi_chnl = 0, wifi_hs_chnl = 0, fw_ps_state; + u8 wifi_chnl = 0, wifi_hs_chnl = 0; u8 ap_num = 0; wifi_link_status = halbtc_get_wifi_link_status(btcoexist); @@ -856,7 +856,6 @@ static void halbtc_display_wifi_status(struct btc_coexist *btcoexist, dc_mode = true; /*TODO*/ under_ips = rtlpriv->psc.inactive_pwrstate == ERFOFF ? 1 : 0; under_lps = rtlpriv->psc.dot11_psmode == EACTIVE ? 0 : 1; - fw_ps_state = 0; low_power = 0; /*TODO*/ seq_printf(m, "\n %-35s = %s%s%s%s", "Power Status", @@ -1644,26 +1643,9 @@ void exhalbtc_rf_status_notify(struct btc_coexist *btcoexist, u8 type) void exhalbtc_stack_operation_notify(struct btc_coexist *btcoexist, u8 type) { - u8 stack_op_type; - if (!halbtc_is_bt_coexist_available(btcoexist)) return; btcoexist->statistics.cnt_stack_operation_notify++; - if (btcoexist->manual_control) - return; - - if ((type == HCI_BT_OP_INQUIRY_START) || - (type == HCI_BT_OP_PAGING_START) || - (type == HCI_BT_OP_PAIRING_START)) { - stack_op_type = BTC_STACK_OP_INQ_PAGE_PAIR_START; - } else if ((type == HCI_BT_OP_INQUIRY_FINISH) || - (type == HCI_BT_OP_PAGING_SUCCESS) || - (type == HCI_BT_OP_PAGING_UNSUCCESS) || - (type == HCI_BT_OP_PAIRING_FINISH)) { - stack_op_type = BTC_STACK_OP_INQ_PAGE_PAIR_FINISH; - } else { - stack_op_type = BTC_STACK_OP_NONE; - } } void exhalbtc_halt_notify(struct btc_coexist *btcoexist) diff --git a/drivers/staging/rtlwifi/cam.c b/drivers/staging/rtlwifi/cam.c index 9c8c907cb48e..ca1c9e36d976 100644 --- a/drivers/staging/rtlwifi/cam.c +++ b/drivers/staging/rtlwifi/cam.c @@ -181,7 +181,7 @@ void rtl_cam_mark_invalid(struct ieee80211_hw *hw, u8 uc_index) u32 ul_command; u32 ul_content; - u32 ul_enc_algo = rtlpriv->cfg->maps[SEC_CAM_AES]; + u32 ul_enc_algo; switch (rtlpriv->sec.pairwise_enc_algorithm) { case WEP40_ENCRYPTION: @@ -221,7 +221,7 @@ void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index) u32 ul_command; u32 ul_content; - u32 ul_encalgo = rtlpriv->cfg->maps[SEC_CAM_AES]; + u32 ul_encalgo; u8 entry_i; switch (rtlpriv->sec.pairwise_enc_algorithm) { diff --git a/drivers/staging/rtlwifi/core.c b/drivers/staging/rtlwifi/core.c index b00e51df984f..3ec039498208 100644 --- a/drivers/staging/rtlwifi/core.c +++ b/drivers/staging/rtlwifi/core.c @@ -509,15 +509,13 @@ static int rtl_op_suspend(struct ieee80211_hw *hw, struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtlpriv); struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw)); - struct timeval ts; RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG, "\n"); if (WARN_ON(!wow)) return -EINVAL; /* to resolve s4 can not wake up*/ - do_gettimeofday(&ts); - rtlhal->last_suspend_sec = ts.tv_sec; + rtlhal->last_suspend_sec = ktime_get_real_seconds(); if ((ppsc->wo_wlan_mode & WAKE_ON_PATTERN_MATCH) && wow->n_patterns) _rtl_add_wowlan_patterns(hw, wow); @@ -536,7 +534,6 @@ static int rtl_op_resume(struct ieee80211_hw *hw) struct rtl_priv *rtlpriv = rtl_priv(hw); struct rtl_hal *rtlhal = rtl_hal(rtlpriv); struct rtl_mac *mac = rtl_mac(rtl_priv(hw)); - struct timeval ts; RT_TRACE(rtlpriv, COMP_POWER, DBG_DMESG, "\n"); rtlhal->driver_is_goingto_unload = false; @@ -544,8 +541,7 @@ static int rtl_op_resume(struct ieee80211_hw *hw) rtlhal->wake_from_pnp_sleep = true; /* to resovle s4 can not wake up*/ - do_gettimeofday(&ts); - if (ts.tv_sec - rtlhal->last_suspend_sec < 5) + if (ktime_get_real_seconds() - rtlhal->last_suspend_sec < 5) return -1; rtl_op_start(hw); @@ -1820,7 +1816,7 @@ bool rtl_hal_pwrseqcmdparsing(struct rtl_priv *rtlpriv, u8 cut_version, u8 faversion, u8 interface_type, struct wlan_pwr_cfg pwrcfgcmd[]) { - struct wlan_pwr_cfg cfg_cmd = {0}; + struct wlan_pwr_cfg cfg_cmd; bool polling_bit = false; u32 ary_idx = 0; u8 value = 0; diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c index f45487122517..483ea85943c3 100644 --- a/drivers/staging/rtlwifi/rtl8822be/fw.c +++ b/drivers/staging/rtlwifi/rtl8822be/fw.c @@ -464,6 +464,8 @@ bool rtl8822b_halmac_cb_write_data_rsvd_page(struct rtl_priv *rtlpriv, u8 *buf, int count; skb = dev_alloc_skb(size); + if (!skb) + return false; memcpy((u8 *)skb_put(skb, size), buf, size); if (!_rtl8822be_send_bcn_or_cmd_packet(rtlpriv->hw, skb, BEACON_QUEUE)) diff --git a/drivers/staging/rtlwifi/wifi.h b/drivers/staging/rtlwifi/wifi.h index eb91c130b245..ca0243fa2e66 100644 --- a/drivers/staging/rtlwifi/wifi.h +++ b/drivers/staging/rtlwifi/wifi.h @@ -1670,7 +1670,7 @@ struct rtl_hal { bool enter_pnp_sleep; bool wake_from_pnp_sleep; bool wow_enabled; - __kernel_time_t last_suspend_sec; + time64_t last_suspend_sec; u32 wowlan_fwsize; u8 *wowlan_firmware; diff --git a/drivers/staging/rts5208/ms.c b/drivers/staging/rts5208/ms.c index 7cdce87f3051..821256b95e22 100644 --- a/drivers/staging/rts5208/ms.c +++ b/drivers/staging/rts5208/ms.c @@ -2821,6 +2821,7 @@ BUILD_FAIL: int reset_ms_card(struct rtsx_chip *chip) { struct ms_info *ms_card = &chip->ms_card; + int seg_no = ms_card->total_block / 512 - 1; int retval; memset(ms_card, 0, sizeof(struct ms_info)); @@ -2863,7 +2864,7 @@ int reset_ms_card(struct rtsx_chip *chip) /* Build table for the last segment, * to check if L2P table block exists, erasing it */ - retval = ms_build_l2p_tbl(chip, ms_card->total_block / 512 - 1); + retval = ms_build_l2p_tbl(chip, seg_no); if (retval != STATUS_SUCCESS) { rtsx_trace(chip); return STATUS_FAIL; diff --git a/drivers/staging/rts5208/rtsx.c b/drivers/staging/rts5208/rtsx.c index 89e2cfe7d1cc..70e0b8623110 100644 --- a/drivers/staging/rts5208/rtsx.c +++ b/drivers/staging/rts5208/rtsx.c @@ -275,23 +275,6 @@ static int rtsx_acquire_irq(struct rtsx_dev *dev) return 0; } -int rtsx_read_pci_cfg_byte(u8 bus, u8 dev, u8 func, u8 offset, u8 *val) -{ - struct pci_dev *pdev; - u8 data; - u8 devfn = (dev << 3) | func; - - pdev = pci_get_bus_and_slot(bus, devfn); - if (!pdev) - return -1; - - pci_read_config_byte(pdev, offset, &data); - if (val) - *val = data; - - return 0; -} - #ifdef CONFIG_PM /* * power management diff --git a/drivers/staging/rts5208/rtsx.h b/drivers/staging/rts5208/rtsx.h index 575e5734f2a5..62e467c5a6d7 100644 --- a/drivers/staging/rts5208/rtsx.h +++ b/drivers/staging/rts5208/rtsx.h @@ -174,8 +174,6 @@ static inline void get_current_time(u8 *timeval_buf, int buf_len) /* struct scsi_cmnd transfer buffer access utilities */ enum xfer_buf_dir {TO_XFER_BUF, FROM_XFER_BUF}; -int rtsx_read_pci_cfg_byte(u8 bus, u8 dev, u8 func, u8 offset, u8 *val); - #define _MSG_TRACE #include "trace.h" diff --git a/drivers/staging/rts5208/sd.h b/drivers/staging/rts5208/sd.h index 55764e16b93a..900be444acf9 100644 --- a/drivers/staging/rts5208/sd.h +++ b/drivers/staging/rts5208/sd.h @@ -118,7 +118,7 @@ #define SUPPORT_MAX_POWER_PERMANCE 0x10000000 #define SUPPORT_1V8 0x01000000 -#define SWTICH_NO_ERR 0x00 +#define SWITCH_NO_ERR 0x00 #define CARD_NOT_EXIST 0x01 #define SPEC_NOT_SUPPORT 0x02 #define CHECK_MODE_ERR 0x03 diff --git a/drivers/staging/sm750fb/TODO b/drivers/staging/sm750fb/TODO index a3a877d90066..f710ab15abfe 100644 --- a/drivers/staging/sm750fb/TODO +++ b/drivers/staging/sm750fb/TODO @@ -6,8 +6,8 @@ TODO: - check on hardware effects of removal of USE_HW_I2C and USE_DVICHIP (these two are supposed to be sample code which is given here if someone wants to use those functionalities) -- move it to drivers/video/fbdev -- modify the code for drm framework +- must be ported to the atomic kms framework in the drm subsystem (which will + give you a basic fbdev driver for free) Please send any patches to Greg Kroah-Hartman <greg@kroah.com> diff --git a/drivers/staging/sm750fb/ddk750_sii164.c b/drivers/staging/sm750fb/ddk750_sii164.c index c787a74c4f9c..4b34a083f5cf 100644 --- a/drivers/staging/sm750fb/ddk750_sii164.c +++ b/drivers/staging/sm750fb/ddk750_sii164.c @@ -62,8 +62,6 @@ unsigned short sii164GetDeviceID(void) return deviceID; } - - /* DVI.C will handle all SiI164 chip stuffs and try it best to make code minimal and useful */ /* @@ -239,10 +237,6 @@ long sii164InitChip(unsigned char edgeSelect, return -1; } - - - - /* below sii164 function is not necessary */ #ifdef SII164_FULL_FUNCTIONS @@ -402,5 +396,3 @@ void sii164ClearInterrupt(void) #endif #endif - - diff --git a/drivers/staging/sm750fb/ddk750_sii164.h b/drivers/staging/sm750fb/ddk750_sii164.h index 2e9a88cd6af3..862e7bf27353 100644 --- a/drivers/staging/sm750fb/ddk750_sii164.h +++ b/drivers/staging/sm750fb/ddk750_sii164.h @@ -12,7 +12,6 @@ enum sii164_hot_plug_mode { SII164_HOTPLUG_USE_HTPLG /* Use Hot Plug detect bit. */ }; - /* Silicon Image SiI164 chip prototype */ long sii164InitChip(unsigned char edgeSelect, unsigned char busSelect, @@ -28,7 +27,6 @@ long sii164InitChip(unsigned char edgeSelect, unsigned short sii164GetVendorID(void); unsigned short sii164GetDeviceID(void); - #ifdef SII164_FULL_FUNCTIONS void sii164ResetChip(void); char *sii164GetChipString(void); diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c index ffd114a6d09b..a8c79864ee4b 100644 --- a/drivers/staging/sm750fb/sm750_hw.c +++ b/drivers/staging/sm750fb/sm750_hw.c @@ -185,29 +185,29 @@ int hw_sm750_output_setMode(struct lynxfb_output *output, struct fb_fix_screeninfo *fix) { int ret; - disp_output_t dispSet; + disp_output_t disp_set; int channel; ret = 0; - dispSet = 0; + disp_set = 0; channel = *output->channel; if (sm750_get_chip_type() != SM750LE) { if (channel == sm750_primary) { pr_info("primary channel\n"); if (output->paths & sm750_panel) - dispSet |= do_LCD1_PRI; + disp_set |= do_LCD1_PRI; if (output->paths & sm750_crt) - dispSet |= do_CRT_PRI; + disp_set |= do_CRT_PRI; } else { pr_info("secondary channel\n"); if (output->paths & sm750_panel) - dispSet |= do_LCD1_SEC; + disp_set |= do_LCD1_SEC; if (output->paths & sm750_crt) - dispSet |= do_CRT_SEC; + disp_set |= do_CRT_SEC; } - ddk750_setLogicalDispOut(dispSet); + ddk750_setLogicalDispOut(disp_set); } else { /* just open DISPLAY_CONTROL_750LE register bit 3:0 */ u32 reg; diff --git a/drivers/staging/speakup/buffers.c b/drivers/staging/speakup/buffers.c index 6137fa83c609..461f131644a2 100644 --- a/drivers/staging/speakup/buffers.c +++ b/drivers/staging/speakup/buffers.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/console.h> #include <linux/types.h> #include <linux/wait.h> diff --git a/drivers/staging/speakup/fakekey.c b/drivers/staging/speakup/fakekey.c index 294c74b47224..cd029968462f 100644 --- a/drivers/staging/speakup/fakekey.c +++ b/drivers/staging/speakup/fakekey.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* fakekey.c * Functions for simulating keypresses. * * Copyright (C) 2010 the Speakup Team - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/types.h> #include <linux/slab.h> diff --git a/drivers/staging/speakup/keyhelp.c b/drivers/staging/speakup/keyhelp.c index 4e6e5daba50c..5f1bda37f86d 100644 --- a/drivers/staging/speakup/keyhelp.c +++ b/drivers/staging/speakup/keyhelp.c @@ -1,19 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* speakup_keyhelp.c * help module for speakup * *written by David Borowski. * * Copyright (C) 2003 David Borowski. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/keyboard.h> diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c index ca85476e3ff7..f1f90222186b 100644 --- a/drivers/staging/speakup/kobjects.c +++ b/drivers/staging/speakup/kobjects.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Speakup kobject implementation * diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c index aae868509e13..cf1259059776 100644 --- a/drivers/staging/speakup/main.c +++ b/drivers/staging/speakup/main.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* speakup.c * review functions for the speakup screen review package. * originally written by: Kirk Reiser and Andy Berdan. @@ -6,16 +7,6 @@ * ** Copyright (C) 1998 Kirk Reiser. * Copyright (C) 2003 David Borowski. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/kernel.h> diff --git a/drivers/staging/speakup/selection.c b/drivers/staging/speakup/selection.c index 66061b5c3427..0ed1fefee0e9 100644 --- a/drivers/staging/speakup/selection.c +++ b/drivers/staging/speakup/selection.c @@ -64,13 +64,8 @@ int speakup_set_selection(struct tty_struct *tty) ps = spk_ys * vc->vc_size_row + (spk_xs << 1); pe = spk_ye * vc->vc_size_row + (spk_xe << 1); - if (ps > pe) { - /* make sel_start <= sel_end */ - int tmp = ps; - - ps = pe; - pe = tmp; - } + if (ps > pe) /* make sel_start <= sel_end */ + swap(ps, pe); if (spk_sel_cons != vc_cons[fg_console].d) { speakup_clear_selection(); diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c index 9cfc8142a318..177a2988641c 100644 --- a/drivers/staging/speakup/serialio.c +++ b/drivers/staging/speakup/serialio.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/interrupt.h> #include <linux/ioport.h> diff --git a/drivers/staging/speakup/speakup_acntpc.c b/drivers/staging/speakup/speakup_acntpc.c index a041441766aa..28519754b2f0 100644 --- a/drivers/staging/speakup/speakup_acntpc.c +++ b/drivers/staging/speakup/speakup_acntpc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,15 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. * this code is specificly written as a driver for the speakup screenreview * package and is not a general device driver. * This driver is for the Aicom Acent PC internal synthesizer. diff --git a/drivers/staging/speakup/speakup_acntsa.c b/drivers/staging/speakup/speakup_acntsa.c index 43315849b7b6..3a863dc61286 100644 --- a/drivers/staging/speakup/speakup_acntsa.c +++ b/drivers/staging/speakup/speakup_acntsa.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * this code is specificly written as a driver for the speakup screenreview * package and is not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_apollo.c b/drivers/staging/speakup/speakup_apollo.c index dcf0c3b59fdd..0877b4044c28 100644 --- a/drivers/staging/speakup/speakup_apollo.c +++ b/drivers/staging/speakup/speakup_apollo.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * this code is specificly written as a driver for the speakup screenreview * package and is not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_audptr.c b/drivers/staging/speakup/speakup_audptr.c index 45b5721441ba..e6a6a9665d8f 100644 --- a/drivers/staging/speakup/speakup_audptr.c +++ b/drivers/staging/speakup/speakup_audptr.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_bns.c b/drivers/staging/speakup/speakup_bns.c index 402b0fbfb94d..76dfa3f7c058 100644 --- a/drivers/staging/speakup/speakup_bns.c +++ b/drivers/staging/speakup/speakup_bns.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * this code is specificly written as a driver for the speakup screenreview * package and is not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_decext.c b/drivers/staging/speakup/speakup_decext.c index 4310c2c276c4..3741c0fcf5bb 100644 --- a/drivers/staging/speakup/speakup_decext.c +++ b/drivers/staging/speakup/speakup_decext.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_decpc.c b/drivers/staging/speakup/speakup_decpc.c index 7a8df7dc1e38..303f393d3f2f 100644 --- a/drivers/staging/speakup/speakup_decpc.c +++ b/drivers/staging/speakup/speakup_decpc.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * This is the DECtalk PC speakup driver * @@ -14,16 +15,6 @@ * Copyright (c) 2003 David Borowski <david575@golden.net> * * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/jiffies.h> #include <linux/sched.h> diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c index 5d6a861c9b1e..2ea22a2eb5f9 100644 --- a/drivers/staging/speakup/speakup_dectlk.c +++ b/drivers/staging/speakup/speakup_dectlk.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_dtlk.c b/drivers/staging/speakup/speakup_dtlk.c index 8999e3eb5c26..f8cb83c9b82e 100644 --- a/drivers/staging/speakup/speakup_dtlk.c +++ b/drivers/staging/speakup/speakup_dtlk.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * package it's not a general device driver. * This driver is for the RC Systems DoubleTalk PC internal synthesizer. diff --git a/drivers/staging/speakup/speakup_dummy.c b/drivers/staging/speakup/speakup_dummy.c index ea3b2911cab9..a30d60450bd5 100644 --- a/drivers/staging/speakup/speakup_dummy.c +++ b/drivers/staging/speakup/speakup_dummy.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -7,16 +8,6 @@ * Copyright (C) 2003 David Borowski. * Copyright (C) 2007 Samuel Thibault. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_keypc.c b/drivers/staging/speakup/speakup_keypc.c index d3203f8fc3d0..de76183932e1 100644 --- a/drivers/staging/speakup/speakup_keypc.c +++ b/drivers/staging/speakup/speakup_keypc.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * written by David Borowski * * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * package it's not a general device driver. * This driver is for the Keynote Gold internal synthesizer. diff --git a/drivers/staging/speakup/speakup_ltlk.c b/drivers/staging/speakup/speakup_ltlk.c index 95efaab73813..3c59519a871f 100644 --- a/drivers/staging/speakup/speakup_ltlk.c +++ b/drivers/staging/speakup/speakup_ltlk.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_soft.c b/drivers/staging/speakup/speakup_soft.c index 585c6aa124cd..0e74d09e18ea 100644 --- a/drivers/staging/speakup/speakup_soft.c +++ b/drivers/staging/speakup/speakup_soft.c @@ -1,20 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0+ /* speakup_soft.c - speakup driver to register and make available * a user space device for software synthesizers. written by: Kirk * Reiser <kirk@braille.uwo.ca> * * Copyright (C) 2003 Kirk Reiser. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * this code is specificly written as a driver for the speakup screenreview * package and is not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_spkout.c b/drivers/staging/speakup/speakup_spkout.c index 1037aa0d085a..6e933bf1de2e 100644 --- a/drivers/staging/speakup/speakup_spkout.c +++ b/drivers/staging/speakup/speakup_spkout.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/speakup_txprt.c b/drivers/staging/speakup/speakup_txprt.c index e160034e4a68..a7326f226a5e 100644 --- a/drivers/staging/speakup/speakup_txprt.c +++ b/drivers/staging/speakup/speakup_txprt.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * originally written by: Kirk Reiser <kirk@braille.uwo.ca> * this version considerably modified by David Borowski, david575@rogers.com @@ -5,16 +6,6 @@ * Copyright (C) 1998-99 Kirk Reiser. * Copyright (C) 2003 David Borowski. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * specificly written as a driver for the speakup screenreview * s not a general device driver. */ diff --git a/drivers/staging/speakup/spk_priv.h b/drivers/staging/speakup/spk_priv.h index 046040ac074c..00430437eb4c 100644 --- a/drivers/staging/speakup/spk_priv.h +++ b/drivers/staging/speakup/spk_priv.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* spk_priv.h * review functions for the speakup screen review package. * originally written by: Kirk Reiser and Andy Berdan. @@ -6,16 +7,6 @@ * * Copyright (C) 1998 Kirk Reiser. * Copyright (C) 2003 David Borowski. - - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _SPEAKUP_PRIVATE_H #define _SPEAKUP_PRIVATE_H diff --git a/drivers/staging/speakup/spk_priv_keyinfo.h b/drivers/staging/speakup/spk_priv_keyinfo.h index c95b68ebd8e7..cc99fcd1bc6e 100644 --- a/drivers/staging/speakup/spk_priv_keyinfo.h +++ b/drivers/staging/speakup/spk_priv_keyinfo.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* spk_priv.h * review functions for the speakup screen review package. * originally written by: Kirk Reiser and Andy Berdan. @@ -6,16 +7,6 @@ * * Copyright (C) 1998 Kirk Reiser. * Copyright (C) 2003 David Borowski. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #ifndef _SPEAKUP_KEYINFO_H diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c index 513cebbd161c..5aa3ffa3772d 100644 --- a/drivers/staging/speakup/spk_ttyio.c +++ b/drivers/staging/speakup/spk_ttyio.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/types.h> #include <linux/tty.h> #include <linux/tty_flip.h> diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c index aac29c816d09..c06e6a810999 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/types.h> #include <linux/ctype.h> /* for isdigit() and friends */ #include <linux/fs.h> diff --git a/drivers/staging/speakup/thread.c b/drivers/staging/speakup/thread.c index 8c64f1ada6e0..2fc75e60fbac 100644 --- a/drivers/staging/speakup/thread.c +++ b/drivers/staging/speakup/thread.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/kthread.h> #include <linux/wait.h> diff --git a/drivers/staging/speakup/varhandlers.c b/drivers/staging/speakup/varhandlers.c index d37d24e26641..321405532a8e 100644 --- a/drivers/staging/speakup/varhandlers.c +++ b/drivers/staging/speakup/varhandlers.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/ctype.h> #include "spk_types.h" #include "spk_priv.h" diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c index b6abaf79ef0b..9bd4412356c9 100644 --- a/drivers/staging/typec/tcpci.c +++ b/drivers/staging/typec/tcpci.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2015-2017 Google, Inc * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * USB Type-C Port Controller Interface. */ @@ -47,7 +38,7 @@ static inline struct tcpci *tcpc_to_tcpci(struct tcpc_dev *tcpc) } static int tcpci_read16(struct tcpci *tcpci, unsigned int reg, - unsigned int *val) + u16 *val) { return regmap_raw_read(tcpci->regmap, reg, val, sizeof(u16)); } @@ -285,15 +276,15 @@ static int tcpci_pd_transmit(struct tcpc_dev *tcpc, const struct pd_message *msg) { struct tcpci *tcpci = tcpc_to_tcpci(tcpc); - unsigned int reg, cnt, header; + u16 header = msg ? le16_to_cpu(msg->header) : 0; + unsigned int reg, cnt; int ret; - cnt = msg ? pd_header_cnt(msg->header) * 4 : 0; + cnt = msg ? pd_header_cnt(header) * 4 : 0; ret = regmap_write(tcpci->regmap, TCPC_TX_BYTE_CNT, cnt + 2); if (ret < 0) return ret; - header = msg ? msg->header : 0; ret = tcpci_write16(tcpci, TCPC_TX_HDR, header); if (ret < 0) return ret; @@ -356,7 +347,7 @@ static int tcpci_init(struct tcpc_dev *tcpc) static irqreturn_t tcpci_irq(int irq, void *dev_id) { struct tcpci *tcpci = dev_id; - unsigned int status, reg; + u16 status; tcpci_read16(tcpci, TCPC_ALERT, &status); @@ -372,6 +363,8 @@ static irqreturn_t tcpci_irq(int irq, void *dev_id) tcpm_cc_change(tcpci->port); if (status & TCPC_ALERT_POWER_STATUS) { + unsigned int reg; + regmap_read(tcpci->regmap, TCPC_POWER_STATUS_MASK, ®); /* @@ -387,11 +380,12 @@ static irqreturn_t tcpci_irq(int irq, void *dev_id) if (status & TCPC_ALERT_RX_STATUS) { struct pd_message msg; unsigned int cnt; + u16 header; regmap_read(tcpci->regmap, TCPC_RX_BYTE_CNT, &cnt); - tcpci_read16(tcpci, TCPC_RX_HDR, ®); - msg.header = reg; + tcpci_read16(tcpci, TCPC_RX_HDR, &header); + msg.header = cpu_to_le16(header); if (WARN_ON(cnt > sizeof(msg.payload))) cnt = sizeof(msg.payload); diff --git a/drivers/staging/typec/tcpci.h b/drivers/staging/typec/tcpci.h index 10b04c8723da..fdfb06cc3b86 100644 --- a/drivers/staging/typec/tcpci.h +++ b/drivers/staging/typec/tcpci.h @@ -1,16 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright 2015-2017 Google, Inc * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * USB Type-C Port Controller Interface. */ diff --git a/drivers/staging/unisys/Kconfig b/drivers/staging/unisys/Kconfig index 4f1f5e624604..c27dab3b610f 100644 --- a/drivers/staging/unisys/Kconfig +++ b/drivers/staging/unisys/Kconfig @@ -3,15 +3,11 @@ # menuconfig UNISYSSPAR bool "Unisys SPAR driver support" - depends on X86_64 && !UML - select PCI - select ACPI ---help--- Support for the Unisys SPAR drivers if UNISYSSPAR -source "drivers/staging/unisys/visorbus/Kconfig" source "drivers/staging/unisys/visornic/Kconfig" source "drivers/staging/unisys/visorinput/Kconfig" source "drivers/staging/unisys/visorhba/Kconfig" diff --git a/drivers/staging/unisys/Makefile b/drivers/staging/unisys/Makefile index 20eb098538d3..e45f44b64202 100644 --- a/drivers/staging/unisys/Makefile +++ b/drivers/staging/unisys/Makefile @@ -1,7 +1,6 @@ # # Makefile for Unisys SPAR drivers # -obj-$(CONFIG_UNISYS_VISORBUS) += visorbus/ obj-$(CONFIG_UNISYS_VISORNIC) += visornic/ obj-$(CONFIG_UNISYS_VISORINPUT) += visorinput/ obj-$(CONFIG_UNISYS_VISORHBA) += visorhba/ diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h index 5cd407ca2251..45c785d80ce4 100644 --- a/drivers/staging/unisys/include/iochannel.h +++ b/drivers/staging/unisys/include/iochannel.h @@ -1,17 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2010 - 2016 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #ifndef __IOCHANNEL_H__ @@ -43,8 +33,7 @@ #include <linux/uuid.h> #include <linux/skbuff.h> - -#include "visorchannel.h" +#include <linux/visorbus.h> /* * Must increment these whenever you insert or delete fields within this channel diff --git a/drivers/staging/unisys/include/visorchannel.h b/drivers/staging/unisys/include/visorchannel.h deleted file mode 100644 index 33945749c8b6..000000000000 --- a/drivers/staging/unisys/include/visorchannel.h +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright (C) 2010 - 2013 UNISYS CORPORATION - * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. - */ - -#ifndef __VISORCHANNEL_H__ -#define __VISORCHANNEL_H__ - -#include <linux/types.h> -#include <linux/uuid.h> - -#define VISOR_CHANNEL_SIGNATURE ('L' << 24 | 'N' << 16 | 'C' << 8 | 'E') - -/* - * enum channel_serverstate - * @CHANNELSRV_UNINITIALIZED: Channel is in an undefined state. - * @CHANNELSRV_READY: Channel has been initialized by server. - */ -enum channel_serverstate { - CHANNELSRV_UNINITIALIZED = 0, - CHANNELSRV_READY = 1 -}; - -/* - * enum channel_clientstate - * @CHANNELCLI_DETACHED: - * @CHANNELCLI_DISABLED: Client can see channel but is NOT allowed to use it - * unless given TBD* explicit request - * (should actually be < DETACHED). - * @CHANNELCLI_ATTACHING: Legacy EFI client request for EFI server to attach. - * @CHANNELCLI_ATTACHED: Idle, but client may want to use channel any time. - * @CHANNELCLI_BUSY: Client either wants to use or is using channel. - * @CHANNELCLI_OWNED: "No worries" state - client can access channel - * anytime. - */ -enum channel_clientstate { - CHANNELCLI_DETACHED = 0, - CHANNELCLI_DISABLED = 1, - CHANNELCLI_ATTACHING = 2, - CHANNELCLI_ATTACHED = 3, - CHANNELCLI_BUSY = 4, - CHANNELCLI_OWNED = 5 -}; - -/* - * Values for VISOR_CHANNEL_PROTOCOL.Features: This define exists so that - * a guest can look at the FeatureFlags in the io channel, and configure the - * driver to use interrupts or not based on this setting. All feature bits for - * all channels should be defined here. The io channel feature bits are defined - * below. - */ -#define VISOR_DRIVER_ENABLES_INTS (0x1ULL << 1) -#define VISOR_CHANNEL_IS_POLLING (0x1ULL << 3) -#define VISOR_IOVM_OK_DRIVER_DISABLING_INTS (0x1ULL << 4) -#define VISOR_DRIVER_DISABLES_INTS (0x1ULL << 5) -#define VISOR_DRIVER_ENHANCED_RCVBUF_CHECKING (0x1ULL << 6) - -/* - * struct channel_header - Common Channel Header - * @signature: Signature. - * @legacy_state: DEPRECATED - being replaced by. - * @header_size: sizeof(struct channel_header). - * @size: Total size of this channel in bytes. - * @features: Flags to modify behavior. - * @chtype: Channel type: data, bus, control, etc.. - * @partition_handle: ID of guest partition. - * @handle: Device number of this channel in client. - * @ch_space_offset: Offset in bytes to channel specific area. - * @version_id: Struct channel_header Version ID. - * @partition_index: Index of guest partition. - * @zone_uuid: Guid of Channel's zone. - * @cli_str_offset: Offset from channel header to null-terminated - * ClientString (0 if ClientString not present). - * @cli_state_boot: CHANNEL_CLIENTSTATE of pre-boot EFI client of this - * channel. - * @cmd_state_cli: CHANNEL_COMMANDSTATE (overloaded in Windows drivers, see - * ServerStateUp, ServerStateDown, etc). - * @cli_state_os: CHANNEL_CLIENTSTATE of Guest OS client of this channel. - * @ch_characteristic: CHANNEL_CHARACTERISTIC_<xxx>. - * @cmd_state_srv: CHANNEL_COMMANDSTATE (overloaded in Windows drivers, see - * ServerStateUp, ServerStateDown, etc). - * @srv_state: CHANNEL_SERVERSTATE. - * @cli_error_boot: Bits to indicate err states for boot clients, so err - * messages can be throttled. - * @cli_error_os: Bits to indicate err states for OS clients, so err - * messages can be throttled. - * @filler: Pad out to 128 byte cacheline. - * @recover_channel: Please add all new single-byte values below here. - */ -struct channel_header { - u64 signature; - u32 legacy_state; - /* SrvState, CliStateBoot, and CliStateOS below */ - u32 header_size; - u64 size; - u64 features; - guid_t chtype; - u64 partition_handle; - u64 handle; - u64 ch_space_offset; - u32 version_id; - u32 partition_index; - guid_t zone_guid; - u32 cli_str_offset; - u32 cli_state_boot; - u32 cmd_state_cli; - u32 cli_state_os; - u32 ch_characteristic; - u32 cmd_state_srv; - u32 srv_state; - u8 cli_error_boot; - u8 cli_error_os; - u8 filler[1]; - u8 recover_channel; -} __packed; - -#define VISOR_CHANNEL_ENABLE_INTS (0x1ULL << 0) - -/* - * struct signal_queue_header - Subheader for the Signal Type variation of the - * Common Channel. - * @version: SIGNAL_QUEUE_HEADER Version ID. - * @chtype: Queue type: storage, network. - * @size: Total size of this queue in bytes. - * @sig_base_offset: Offset to signal queue area. - * @features: Flags to modify behavior. - * @num_sent: Total # of signals placed in this queue. - * @num_overflows: Total # of inserts failed due to full queue. - * @signal_size: Total size of a signal for this queue. - * @max_slots: Max # of slots in queue, 1 slot is always empty. - * @max_signals: Max # of signals in queue (MaxSignalSlots-1). - * @head: Queue head signal #. - * @num_received: Total # of signals removed from this queue. - * @tail: Queue tail signal. - * @reserved1: Reserved field. - * @reserved2: Reserved field. - * @client_queue: - * @num_irq_received: Total # of Interrupts received. This is incremented by the - * ISR in the guest windows driver. - * @num_empty: Number of times that visor_signal_remove is called and - * returned Empty Status. - * @errorflags: Error bits set during SignalReinit to denote trouble with - * client's fields. - * @filler: Pad out to 64 byte cacheline. - */ -struct signal_queue_header { - /* 1st cache line */ - u32 version; - u32 chtype; - u64 size; - u64 sig_base_offset; - u64 features; - u64 num_sent; - u64 num_overflows; - u32 signal_size; - u32 max_slots; - u32 max_signals; - u32 head; - /* 2nd cache line */ - u64 num_received; - u32 tail; - u32 reserved1; - u64 reserved2; - u64 client_queue; - u64 num_irq_received; - u64 num_empty; - u32 errorflags; - u8 filler[12]; -} __packed; - -/* VISORCHANNEL Guids */ -/* {414815ed-c58c-11da-95a9-00e08161165f} */ -#define VISOR_VHBA_CHANNEL_GUID \ - GUID_INIT(0x414815ed, 0xc58c, 0x11da, \ - 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f) -#define VISOR_VHBA_CHANNEL_GUID_STR \ - "414815ed-c58c-11da-95a9-00e08161165f" -#endif diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c index 0bcd3acb7b0c..167e98f8688e 100644 --- a/drivers/staging/unisys/visorhba/visorhba_main.c +++ b/drivers/staging/unisys/visorhba/visorhba_main.c @@ -1,17 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 2012 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #include <linux/debugfs.h> @@ -19,12 +9,12 @@ #include <linux/idr.h> #include <linux/module.h> #include <linux/seq_file.h> +#include <linux/visorbus.h> #include <scsi/scsi.h> #include <scsi/scsi_host.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> -#include "visorbus.h" #include "iochannel.h" /* The Send and Receive Buffers of the IO Queue may both be full */ diff --git a/drivers/staging/unisys/visorinput/ultrainputreport.h b/drivers/staging/unisys/visorinput/ultrainputreport.h index 53975a09535f..67dac430ce0c 100644 --- a/drivers/staging/unisys/visorinput/ultrainputreport.h +++ b/drivers/staging/unisys/visorinput/ultrainputreport.h @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #ifndef __SPAR_ULTRAINPUTREPORT_H__ diff --git a/drivers/staging/unisys/visorinput/visorinput.c b/drivers/staging/unisys/visorinput/visorinput.c index 450f003743c0..d8048e48658f 100644 --- a/drivers/staging/unisys/visorinput/visorinput.c +++ b/drivers/staging/unisys/visorinput/visorinput.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2011 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ /* @@ -25,8 +16,8 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/uuid.h> +#include <linux/visorbus.h> -#include "visorbus.h" #include "ultrainputreport.h" /* Keyboard channel {c73416d0-b0b8-44af-b304-9d2ae99f1b3d} */ diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c index 6d8239163ba5..92dceb557886 100644 --- a/drivers/staging/unisys/visornic/visornic_main.c +++ b/drivers/staging/unisys/visornic/visornic_main.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2012 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ /* This driver lives in a spar partition, and registers to ethernet io @@ -25,8 +16,8 @@ #include <linux/kthread.h> #include <linux/skbuff.h> #include <linux/rtnetlink.h> +#include <linux/visorbus.h> -#include "visorbus.h" #include "iochannel.h" #define VISORNIC_INFINITE_RSP_WAIT 0 diff --git a/drivers/staging/vboxvideo/vbox_fb.c b/drivers/staging/vboxvideo/vbox_fb.c index 8aed248db6e2..43c39eca4ae1 100644 --- a/drivers/staging/vboxvideo/vbox_fb.c +++ b/drivers/staging/vboxvideo/vbox_fb.c @@ -170,7 +170,7 @@ static int vboxfb_create(struct drm_fb_helper *helper, drm_fb_helper_fill_var(info, &fbdev->helper, sizes->fb_width, sizes->fb_height); - info->screen_base = bo->kmap.virtual; + info->screen_base = (char __iomem *)bo->kmap.virtual; info->screen_size = size; #ifdef CONFIG_DRM_KMS_FB_HELPER diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c index 80bd039fa08e..973b3bcc04b1 100644 --- a/drivers/staging/vboxvideo/vbox_main.c +++ b/drivers/staging/vboxvideo/vbox_main.c @@ -61,7 +61,7 @@ void vbox_enable_accel(struct vbox_private *vbox) if (vbox->vbva_info[i].vbva) continue; - vbva = (void *)vbox->vbva_buffers + i * VBVA_MIN_BUFFER_SIZE; + vbva = (void __force *)vbox->vbva_buffers + i * VBVA_MIN_BUFFER_SIZE; if (!vbva_enable(&vbox->vbva_info[i], vbox->guest_pool, vbva, i)) { /* very old host or driver error. */ diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c index f484bb055df7..ec468d5719b1 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-ctl.c @@ -1,16 +1,5 @@ -/***************************************************************************** - * Copyright 2011 Broadcom Corporation. All rights reserved. - * - * Unless you and Broadcom execute a separate written software license - * agreement governing use of this software, this software is licensed to you - * under the terms of the GNU General Public License version 2, available at - * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). - * - * Notwithstanding the above, under no circumstances may you combine this - * software in any way with any other Broadcom software provided under a - * license other than the GPL, without Broadcom's express prior written - * consent. - *****************************************************************************/ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright 2011 Broadcom Corporation. All rights reserved. */ #include <linux/platform_device.h> #include <linux/init.h> diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c index 7e68b3e28246..5f7551fbf5cf 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c @@ -1,16 +1,5 @@ -/***************************************************************************** - * Copyright 2011 Broadcom Corporation. All rights reserved. - * - * Unless you and Broadcom execute a separate written software license - * agreement governing use of this software, this software is licensed to you - * under the terms of the GNU General Public License version 2, available at - * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). - * - * Notwithstanding the above, under no circumstances may you combine this - * software in any way with any other Broadcom software provided under a - * license other than the GPL, without Broadcom's express prior written - * consent. - *****************************************************************************/ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright 2011 Broadcom Corporation. All rights reserved. */ #include <linux/interrupt.h> #include <linux/slab.h> diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c index 3c6f1d91d22d..a4a48f31f1a3 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c @@ -1,16 +1,5 @@ -/***************************************************************************** - * Copyright 2011 Broadcom Corporation. All rights reserved. - * - * Unless you and Broadcom execute a separate written software license - * agreement governing use of this software, this software is licensed to you - * under the terms of the GNU General Public License version 2, available at - * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). - * - * Notwithstanding the above, under no circumstances may you combine this - * software in any way with any other Broadcom software provided under a - * license other than the GPL, without Broadcom's express prior written - * consent. - *****************************************************************************/ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright 2011 Broadcom Corporation. All rights reserved. */ #include <linux/device.h> #include <sound/core.h> diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c index 8f2d508183b2..045d577fe4f8 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c @@ -1,16 +1,5 @@ -/***************************************************************************** - * Copyright 2011 Broadcom Corporation. All rights reserved. - * - * Unless you and Broadcom execute a separate written software license - * agreement governing use of this software, this software is licensed to you - * under the terms of the GNU General Public License version 2, available at - * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). - * - * Notwithstanding the above, under no circumstances may you combine this - * software in any way with any other Broadcom software provided under a - * license other than the GPL, without Broadcom's express prior written - * consent. - *****************************************************************************/ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright 2011 Broadcom Corporation. All rights reserved. */ #include <linux/platform_device.h> @@ -443,7 +432,6 @@ static struct platform_driver bcm2835_alsa0_driver = { #endif .driver = { .name = "bcm2835_audio", - .owner = THIS_MODULE, .of_match_table = snd_bcm2835_of_match_table, }, }; diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h index f1e43e45fd67..dc6ec915f9f5 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h @@ -1,16 +1,5 @@ -/***************************************************************************** - * Copyright 2011 Broadcom Corporation. All rights reserved. - * - * Unless you and Broadcom execute a separate written software license - * agreement governing use of this software, this software is licensed to you - * under the terms of the GNU General Public License version 2, available at - * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). - * - * Notwithstanding the above, under no circumstances may you combine this - * software in any way with any other Broadcom software provided under a - * license other than the GPL, without Broadcom's express prior written - * consent. - *****************************************************************************/ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2011 Broadcom Corporation. All rights reserved. */ #ifndef __SOUND_ARM_BCM2835_H #define __SOUND_ARM_BCM2835_H diff --git a/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h b/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h index da96f1bc2516..1a7f0884ac9c 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h +++ b/drivers/staging/vc04_services/bcm2835-audio/vc_vchi_audioserv_defs.h @@ -1,16 +1,5 @@ -/***************************************************************************** - * Copyright 2011 Broadcom Corporation. All rights reserved. - * - * Unless you and Broadcom execute a separate written software license - * agreement governing use of this software, this software is licensed to you - * under the terms of the GNU General Public License version 2, available at - * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). - * - * Notwithstanding the above, under no circumstances may you combine this - * software in any way with any other Broadcom software provided under a - * license other than the GPL, without Broadcom's express prior written - * consent. - *****************************************************************************/ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2011 Broadcom Corporation. All rights reserved. */ #ifndef _VC_AUDIO_DEFS_H_ #define _VC_AUDIO_DEFS_H_ diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c index be936b8fe317..d2262275a870 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> @@ -328,11 +325,9 @@ static void buffer_cb(struct vchiq_mmal_instance *instance, pr_debug("Grab another frame"); vchiq_mmal_port_parameter_set( instance, - dev->capture. - camera_port, + dev->capture.camera_port, MMAL_PARAMETER_CAPTURE, - &dev->capture. - frame_count, + &dev->capture.frame_count, sizeof(dev->capture.frame_count)); } } else { @@ -343,37 +338,17 @@ static void buffer_cb(struct vchiq_mmal_instance *instance, if (dev->capture.frame_count) { if (dev->capture.vc_start_timestamp != -1 && pts != 0) { - struct timeval timestamp; + ktime_t timestamp; s64 runtime_us = pts - dev->capture.vc_start_timestamp; - u32 div = 0; - u32 rem = 0; - - div = - div_u64_rem(runtime_us, USEC_PER_SEC, &rem); - timestamp.tv_sec = - dev->capture.kernel_start_ts.tv_sec + div; - timestamp.tv_usec = - dev->capture.kernel_start_ts.tv_usec + rem; - - if (timestamp.tv_usec >= - USEC_PER_SEC) { - timestamp.tv_sec++; - timestamp.tv_usec -= - USEC_PER_SEC; - } + timestamp = ktime_add_us(dev->capture.kernel_start_ts, + runtime_us); v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, - "Convert start time %d.%06d and %llu " - "with offset %llu to %d.%06d\n", - (int)dev->capture.kernel_start_ts. - tv_sec, - (int)dev->capture.kernel_start_ts. - tv_usec, + "Convert start time %llu and %llu with offset %llu to %llu\n", + ktime_to_ns(dev->capture.kernel_start_ts), dev->capture.vc_start_timestamp, pts, - (int)timestamp.tv_sec, - (int)timestamp.tv_usec); - buf->vb.vb2_buf.timestamp = timestamp.tv_sec * 1000000000ULL + - timestamp.tv_usec * 1000ULL; + ktime_to_ns(timestamp)); + buf->vb.vb2_buf.timestamp = ktime_to_ns(timestamp); } else { buf->vb.vb2_buf.timestamp = ktime_get_ns(); } @@ -387,11 +362,9 @@ static void buffer_cb(struct vchiq_mmal_instance *instance, "Grab another frame as buffer has EOS"); vchiq_mmal_port_parameter_set( instance, - dev->capture. - camera_port, + dev->capture.camera_port, MMAL_PARAMETER_CAPTURE, - &dev->capture. - frame_count, + &dev->capture.frame_count, sizeof(dev->capture.frame_count)); } } else { @@ -547,7 +520,7 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count) "Start time %lld size %d\n", dev->capture.vc_start_timestamp, parameter_size); - v4l2_get_timestamp(&dev->capture.kernel_start_ts); + dev->capture.kernel_start_ts = ktime_get(); /* enable the camera port */ dev->capture.port->cb_ctx = dev; @@ -555,8 +528,8 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count) vchiq_mmal_port_enable(dev->instance, dev->capture.port, buffer_cb); if (ret) { v4l2_err(&dev->v4l2_dev, - "Failed to enable capture port - error %d. " - "Disabling camera port again\n", ret); + "Failed to enable capture port - error %d. Disabling camera port again\n", + ret); vchiq_mmal_port_disable(dev->instance, dev->capture.camera_port); @@ -1213,8 +1186,8 @@ static int mmal_setup_components(struct bm2835_mmal_dev *dev, port->current_buffer.size = (f->fmt.pix.sizeimage < (100 << 10)) - ? (100 << 10) : f->fmt.pix. - sizeimage; + ? (100 << 10) + : f->fmt.pix.sizeimage; } v4l2_dbg(1, bcm2835_v4l2_debug, &dev->v4l2_dev, diff --git a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h index 404037476bc5..2b5679eb5b4a 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h +++ b/drivers/staging/vc04_services/bcm2835-camera/bcm2835-camera.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> @@ -92,7 +89,7 @@ struct bm2835_mmal_dev { /* VC start timestamp for streaming */ s64 vc_start_timestamp; /* Kernel start timestamp for streaming */ - struct timeval kernel_start_ts; + ktime_t kernel_start_ts; struct vchiq_mmal_port *port; /* port being used for capture */ /* camera port being used for capture */ diff --git a/drivers/staging/vc04_services/bcm2835-camera/controls.c b/drivers/staging/vc04_services/bcm2835-camera/controls.c index 77a5d6f4e1eb..0736214e1422 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/controls.c +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h index 840fd139e033..800e4e7e5f96 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-common.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h index e71d9600b278..129203597f91 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-encodings.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h index 66e8a6edf628..ec8455639d49 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-common.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h index 24b002e8df0c..c9d6fbe25fe4 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-format.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h index 84a0f4b717ef..dd4b4ce72081 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg-port.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h index 5a1b2a7d8eb0..d1c57edbe2b8 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h index e7300229842d..1607bc4c0347 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-parameters.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c index 6ea7fb0ea50e..a91ef6ea29ce 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> @@ -618,8 +615,8 @@ static void buffer_to_host_cb(struct vchiq_mmal_instance *instance, struct mmal_msg_context *msg_context; u32 handle; - pr_debug("buffer_to_host_cb: instance:%p msg:%p msg_len:%d\n", - instance, msg, msg_len); + pr_debug("%s: instance:%p msg:%p msg_len:%d\n", + __func__, instance, msg, msg_len); if (msg->u.buffer_from_host.drvbuf.magic == MMAL_MAGIC) { handle = msg->u.buffer_from_host.drvbuf.client_context; @@ -1360,8 +1357,7 @@ static int port_action_handle(struct vchiq_mmal_instance *instance, ret = -rmsg->u.port_action_reply.status; - pr_debug("%s:result:%d component:0x%x port:%d action:%s(%d)" \ - " connect component:0x%x connect port:%d\n", + pr_debug("%s:result:%d component:0x%x port:%d action:%s(%d) connect component:0x%x connect port:%d\n", __func__, ret, port->component->handle, port->handle, port_action_type_names[action_type], diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h index db39900c9d91..b1f22b6dca10 100644 --- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h +++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h @@ -1,12 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Broadcom BM2835 V4L2 driver * * Copyright © 2013 Raspberry Pi (Trading) Ltd. * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive - * for more details. - * * Authors: Vincent Sanders <vincent.sanders@collabora.co.uk> * Dave Stevenson <dsteve@broadcom.com> * Simon Mellor <simellor@broadcom.com> diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index 315b49c1de3b..b59ef14890aa 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -224,8 +224,7 @@ vchiq_platform_get_arm_state(VCHIQ_STATE_T *state) platform_state = (struct vchiq_2835_state *)state->platform_state; - if (!platform_state->inited) - BUG(); + WARN_ON_ONCE(!platform_state->inited); return &platform_state->arm_state; } @@ -485,8 +484,7 @@ create_pagelist(char __user *buf, size_t count, unsigned short type) __func__, actual_pages, num_pages); /* This is probably due to the process being killed */ - while (actual_pages > 0) - { + while (actual_pages > 0) { actual_pages--; put_page(pages[actual_pages]); } diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index 411539f8ff8c..c2c440009cac 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -682,8 +682,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (user_service->close_pending && down_interruptible(&user_service->close_event)) status = VCHIQ_RETRY; - } - else + } else ret = -EINVAL; } break; @@ -708,8 +707,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (user_service->close_pending && down_interruptible(&user_service->close_event)) status = VCHIQ_RETRY; - } - else + } else ret = -EINVAL; } break; @@ -1171,8 +1169,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) USER_SERVICE_T *user_service = (USER_SERVICE_T *)service->base.userdata; close_delivered(user_service); - } - else + } else ret = -EINVAL; } break; @@ -1810,8 +1807,7 @@ vchiq_release(struct inode *inode, struct file *file) instance->completion_remove & (MAX_COMPLETIONS - 1)]; service = completion->service_userdata; - if (completion->reason == VCHIQ_SERVICE_CLOSED) - { + if (completion->reason == VCHIQ_SERVICE_CLOSED) { USER_SERVICE_T *user_service = service->base.userdata; diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index ecff92bae200..5d28fff46557 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -66,8 +66,7 @@ struct vchiq_openack_payload { short version; }; -enum -{ +enum { QMFLAGS_IS_BLOCKING = (1 << 0), QMFLAGS_NO_MUTEX_LOCK = (1 << 1), QMFLAGS_NO_MUTEX_UNLOCK = (1 << 2) @@ -212,7 +211,8 @@ find_service_by_port(VCHIQ_STATE_T *state, int localport) VCHIQ_SERVICE_T * find_service_for_instance(VCHIQ_INSTANCE_T instance, - VCHIQ_SERVICE_HANDLE_T handle) { + VCHIQ_SERVICE_HANDLE_T handle) +{ VCHIQ_SERVICE_T *service; spin_lock(&service_spinlock); @@ -235,7 +235,8 @@ find_service_for_instance(VCHIQ_INSTANCE_T instance, VCHIQ_SERVICE_T * find_closed_service_for_instance(VCHIQ_INSTANCE_T instance, - VCHIQ_SERVICE_HANDLE_T handle) { + VCHIQ_SERVICE_HANDLE_T handle) +{ VCHIQ_SERVICE_T *service; spin_lock(&service_spinlock); diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c index 34f746db19cd..43c89a08bda9 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_kern_lib.c @@ -64,11 +64,6 @@ static VCHIQ_STATUS_T vchiq_blocking_bulk_transfer(VCHIQ_SERVICE_HANDLE_T handle, void *data, unsigned int size, VCHIQ_BULK_DIR_T dir); -/**************************************************************************** -* -* vchiq_initialise -* -***************************************************************************/ #define VCHIQ_INIT_RETRIES 10 VCHIQ_STATUS_T vchiq_initialise(VCHIQ_INSTANCE_T *instance_out) { @@ -80,7 +75,9 @@ VCHIQ_STATUS_T vchiq_initialise(VCHIQ_INSTANCE_T *instance_out) vchiq_log_trace(vchiq_core_log_level, "%s called", __func__); /* VideoCore may not be ready due to boot up timing. - It may never be ready if kernel and firmware are mismatched, so don't block forever. */ + * It may never be ready if kernel and firmware are mismatched,so don't + * block forever. + */ for (i = 0; i < VCHIQ_INIT_RETRIES; i++) { state = vchiq_get_state(); if (state) @@ -93,7 +90,8 @@ VCHIQ_STATUS_T vchiq_initialise(VCHIQ_INSTANCE_T *instance_out) goto failed; } else if (i > 0) { vchiq_log_warning(vchiq_core_log_level, - "%s: videocore initialized after %d retries\n", __func__, i); + "%s: videocore initialized after %d retries\n", + __func__, i); } instance = kzalloc(sizeof(*instance), GFP_KERNEL); @@ -120,12 +118,6 @@ failed: } EXPORT_SYMBOL(vchiq_initialise); -/**************************************************************************** -* -* vchiq_shutdown -* -***************************************************************************/ - VCHIQ_STATUS_T vchiq_shutdown(VCHIQ_INSTANCE_T instance) { VCHIQ_STATUS_T status; @@ -168,23 +160,11 @@ VCHIQ_STATUS_T vchiq_shutdown(VCHIQ_INSTANCE_T instance) } EXPORT_SYMBOL(vchiq_shutdown); -/**************************************************************************** -* -* vchiq_is_connected -* -***************************************************************************/ - static int vchiq_is_connected(VCHIQ_INSTANCE_T instance) { return instance->connected; } -/**************************************************************************** -* -* vchiq_connect -* -***************************************************************************/ - VCHIQ_STATUS_T vchiq_connect(VCHIQ_INSTANCE_T instance) { VCHIQ_STATUS_T status; @@ -214,12 +194,6 @@ failed: } EXPORT_SYMBOL(vchiq_connect); -/**************************************************************************** -* -* vchiq_add_service -* -***************************************************************************/ - VCHIQ_STATUS_T vchiq_add_service( VCHIQ_INSTANCE_T instance, const VCHIQ_SERVICE_PARAMS_T *params, @@ -259,12 +233,6 @@ VCHIQ_STATUS_T vchiq_add_service( } EXPORT_SYMBOL(vchiq_add_service); -/**************************************************************************** -* -* vchiq_open_service -* -***************************************************************************/ - VCHIQ_STATUS_T vchiq_open_service( VCHIQ_INSTANCE_T instance, const VCHIQ_SERVICE_PARAMS_T *params, @@ -414,8 +382,9 @@ vchiq_blocking_bulk_transfer(VCHIQ_SERVICE_HANDLE_T handle, void *data, if ((bulk->data != data) || (bulk->size != size)) { /* This is not a retry of the previous one. - ** Cancel the signal when the transfer - ** completes. */ + * Cancel the signal when the transfer + * completes. + */ spin_lock(&bulk_waiter_spinlock); bulk->userdata = NULL; spin_unlock(&bulk_waiter_spinlock); @@ -441,7 +410,8 @@ vchiq_blocking_bulk_transfer(VCHIQ_SERVICE_HANDLE_T handle, void *data, if (bulk) { /* Cancel the signal when the transfer - ** completes. */ + * completes. + */ spin_lock(&bulk_waiter_spinlock); bulk->userdata = NULL; spin_unlock(&bulk_waiter_spinlock); diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c index d465e1cf5db9..29984f9795c7 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c @@ -800,8 +800,7 @@ int32_t vchi_get_peer_version(const VCHI_SERVICE_HANDLE_T handle, short *peer_ve int32_t ret = -1; struct shim_service *service = (struct shim_service *)handle; - if (service) - { + if (service) { VCHIQ_STATUS_T status; status = vchiq_get_peer_version(service->handle, peer_version); diff --git a/drivers/staging/vme/devices/vme_user.c b/drivers/staging/vme/devices/vme_user.c index 4c8c6fa0a79f..3242dee8246f 100644 --- a/drivers/staging/vme/devices/vme_user.c +++ b/drivers/staging/vme/devices/vme_user.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * VMEbus User access driver * @@ -7,12 +8,6 @@ * Based on work by: * Tom Armistead and Ajit Prem * Copyright 2004 Motorola Inc. - * - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -573,7 +568,7 @@ static int vme_user_probe(struct vme_dev *vdev) * by all windows. */ image[i].resource = vme_slave_request(vme_user_bridge, - VME_A24, VME_SCT); + VME_A24, VME_SCT); if (!image[i].resource) { dev_warn(&vdev->dev, "Unable to allocate slave resource\n"); @@ -582,7 +577,8 @@ static int vme_user_probe(struct vme_dev *vdev) } image[i].size_buf = PCI_BUF_SIZE; image[i].kern_buf = vme_alloc_consistent(image[i].resource, - image[i].size_buf, &image[i].pci_buf); + image[i].size_buf, + &image[i].pci_buf); if (!image[i].kern_buf) { dev_warn(&vdev->dev, "Unable to allocate memory for buffer\n"); @@ -600,7 +596,8 @@ static int vme_user_probe(struct vme_dev *vdev) for (i = MASTER_MINOR; i < (MASTER_MAX + 1); i++) { /* XXX Need to properly request attributes */ image[i].resource = vme_master_request(vme_user_bridge, - VME_A32, VME_SCT, VME_D32); + VME_A32, VME_SCT, + VME_D32); if (!image[i].resource) { dev_warn(&vdev->dev, "Unable to allocate master resource\n"); @@ -645,7 +642,8 @@ static int vme_user_probe(struct vme_dev *vdev) num = (type[i] == SLAVE_MINOR) ? i - (MASTER_MAX + 1) : i; image[i].device = device_create(vme_user_sysfs_class, NULL, - MKDEV(VME_MAJOR, i), NULL, name, num); + MKDEV(VME_MAJOR, i), NULL, + name, num); if (IS_ERR(image[i].device)) { dev_info(&vdev->dev, "Error creating sysfs device\n"); err = PTR_ERR(image[i].device); diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c index 44dfa5421374..f0b163473426 100644 --- a/drivers/staging/vt6655/baseband.c +++ b/drivers/staging/vt6655/baseband.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: baseband.c * * Purpose: Implement functions to access baseband diff --git a/drivers/staging/vt6655/baseband.h b/drivers/staging/vt6655/baseband.h index feaf222574ee..b8ee33dcb352 100644 --- a/drivers/staging/vt6655/baseband.h +++ b/drivers/staging/vt6655/baseband.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: baseband.h * * Purpose: Implement functions to access baseband diff --git a/drivers/staging/vt6655/card.c b/drivers/staging/vt6655/card.c index 14034e342aa6..ea0a4b57852c 100644 --- a/drivers/staging/vt6655/card.c +++ b/drivers/staging/vt6655/card.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: card.c * Purpose: Provide functions to setup NIC operation mode * Functions: diff --git a/drivers/staging/vt6655/card.h b/drivers/staging/vt6655/card.h index 1a04dbb57d42..487039a64587 100644 --- a/drivers/staging/vt6655/card.h +++ b/drivers/staging/vt6655/card.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: card.h * * Purpose: Provide functions to setup NIC operation mode diff --git a/drivers/staging/vt6655/channel.c b/drivers/staging/vt6655/channel.c index ab89956511a0..dec6f0f23b88 100644 --- a/drivers/staging/vt6655/channel.c +++ b/drivers/staging/vt6655/channel.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: channel.c * */ diff --git a/drivers/staging/vt6655/channel.h b/drivers/staging/vt6655/channel.h index 8fe70760e548..53f623a4af65 100644 --- a/drivers/staging/vt6655/channel.h +++ b/drivers/staging/vt6655/channel.h @@ -1,19 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: channel.h - * */ #ifndef _CHANNEL_H_ diff --git a/drivers/staging/vt6655/desc.h b/drivers/staging/vt6655/desc.h index 2fee6e759ad8..b4a0037b40c1 100644 --- a/drivers/staging/vt6655/desc.h +++ b/drivers/staging/vt6655/desc.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: desc.h * * Purpose:The header file of descriptor diff --git a/drivers/staging/vt6655/device.h b/drivers/staging/vt6655/device.h index 3ae40d846a09..2f9e9219e8c8 100644 --- a/drivers/staging/vt6655/device.h +++ b/drivers/staging/vt6655/device.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: device.h * * Purpose: MAC Data structure diff --git a/drivers/staging/vt6655/device_cfg.h b/drivers/staging/vt6655/device_cfg.h index 0298ea923f97..73f904b51b96 100644 --- a/drivers/staging/vt6655/device_cfg.h +++ b/drivers/staging/vt6655/device_cfg.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: device_cfg.h * * Purpose: Driver configuration header diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index 1123b4f1e1d6..0dc902022a91 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: device_main.c * * Purpose: driver entry for initial, open, close, tx and rx. @@ -547,7 +538,7 @@ static void device_init_rd0_ring(struct vnt_private *priv) for (i = 0; i < priv->opts.rx_descs0; i ++, curr += sizeof(struct vnt_rx_desc)) { desc = &priv->aRD0Ring[i]; - desc->rd_info = kzalloc(sizeof(*desc->rd_info), GFP_ATOMIC); + desc->rd_info = kzalloc(sizeof(*desc->rd_info), GFP_KERNEL); if (!device_alloc_rx_buf(priv, desc)) dev_err(&priv->pcid->dev, "can not alloc rx bufs\n"); @@ -571,7 +562,7 @@ static void device_init_rd1_ring(struct vnt_private *priv) for (i = 0; i < priv->opts.rx_descs1; i ++, curr += sizeof(struct vnt_rx_desc)) { desc = &priv->aRD1Ring[i]; - desc->rd_info = kzalloc(sizeof(*desc->rd_info), GFP_ATOMIC); + desc->rd_info = kzalloc(sizeof(*desc->rd_info), GFP_KERNEL); if (!device_alloc_rx_buf(priv, desc)) dev_err(&priv->pcid->dev, "can not alloc rx bufs\n"); @@ -629,7 +620,7 @@ static void device_init_td0_ring(struct vnt_private *priv) for (i = 0; i < priv->opts.tx_descs[0]; i++, curr += sizeof(struct vnt_tx_desc)) { desc = &priv->apTD0Rings[i]; - desc->td_info = kzalloc(sizeof(*desc->td_info), GFP_ATOMIC); + desc->td_info = kzalloc(sizeof(*desc->td_info), GFP_KERNEL); desc->td_info->buf = priv->tx0_bufs + i * PKT_BUF_SZ; desc->td_info->buf_dma = priv->tx_bufs_dma0 + i * PKT_BUF_SZ; @@ -654,7 +645,7 @@ static void device_init_td1_ring(struct vnt_private *priv) for (i = 0; i < priv->opts.tx_descs[1]; i++, curr += sizeof(struct vnt_tx_desc)) { desc = &priv->apTD1Rings[i]; - desc->td_info = kzalloc(sizeof(*desc->td_info), GFP_ATOMIC); + desc->td_info = kzalloc(sizeof(*desc->td_info), GFP_KERNEL); desc->td_info->buf = priv->tx1_bufs + i * PKT_BUF_SZ; desc->td_info->buf_dma = priv->tx_bufs_dma1 + i * PKT_BUF_SZ; diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c index 9b3fa779258a..088d2d9dbc21 100644 --- a/drivers/staging/vt6655/dpc.c +++ b/drivers/staging/vt6655/dpc.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: dpc.c * * Purpose: handle dpc rx functions diff --git a/drivers/staging/vt6655/dpc.h b/drivers/staging/vt6655/dpc.h index 6e75fa9c5618..93af4220605f 100644 --- a/drivers/staging/vt6655/dpc.h +++ b/drivers/staging/vt6655/dpc.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: dpc.h * * Purpose: diff --git a/drivers/staging/vt6655/key.c b/drivers/staging/vt6655/key.c index d891993b20cf..4d6b48fd119d 100644 --- a/drivers/staging/vt6655/key.c +++ b/drivers/staging/vt6655/key.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: key.c * * Purpose: Implement functions for 802.11i Key management diff --git a/drivers/staging/vt6655/key.h b/drivers/staging/vt6655/key.h index a5024611af60..0942d8703f98 100644 --- a/drivers/staging/vt6655/key.h +++ b/drivers/staging/vt6655/key.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: key.h * * Purpose: Implement functions for 802.11i Key management diff --git a/drivers/staging/vt6655/mac.c b/drivers/staging/vt6655/mac.c index f7550b215f72..4750863c1bb7 100644 --- a/drivers/staging/vt6655/mac.c +++ b/drivers/staging/vt6655/mac.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: mac.c * * Purpose: MAC routines diff --git a/drivers/staging/vt6655/mac.h b/drivers/staging/vt6655/mac.h index db401e32ae23..b8ab09434773 100644 --- a/drivers/staging/vt6655/mac.h +++ b/drivers/staging/vt6655/mac.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: mac.h * * Purpose: MAC routines diff --git a/drivers/staging/vt6655/power.c b/drivers/staging/vt6655/power.c index 716d2a80f840..d6c581b31569 100644 --- a/drivers/staging/vt6655/power.c +++ b/drivers/staging/vt6655/power.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: power.c * * Purpose: Handles 802.11 power management functions diff --git a/drivers/staging/vt6655/power.h b/drivers/staging/vt6655/power.h index f360c5966523..2ec40045fddb 100644 --- a/drivers/staging/vt6655/power.h +++ b/drivers/staging/vt6655/power.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: power.h * * Purpose: Handles 802.11 power management functions diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c index edf7db9d53b3..03b0d56dbe9e 100644 --- a/drivers/staging/vt6655/rf.c +++ b/drivers/staging/vt6655/rf.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: rf.c * * Purpose: rf function code diff --git a/drivers/staging/vt6655/rf.h b/drivers/staging/vt6655/rf.h index ba222301d49d..bfce5a89657d 100644 --- a/drivers/staging/vt6655/rf.h +++ b/drivers/staging/vt6655/rf.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: rf.h * * Purpose: diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c index 3efe19a1b13f..9aa4d5262aaa 100644 --- a/drivers/staging/vt6655/rxtx.c +++ b/drivers/staging/vt6655/rxtx.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: rxtx.c * * Purpose: handle WMAC/802.3/802.11 rx & tx functions diff --git a/drivers/staging/vt6655/rxtx.h b/drivers/staging/vt6655/rxtx.h index 095258923ebd..08db848613f0 100644 --- a/drivers/staging/vt6655/rxtx.h +++ b/drivers/staging/vt6655/rxtx.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: rxtx.h * * Purpose: diff --git a/drivers/staging/vt6655/srom.c b/drivers/staging/vt6655/srom.c index 635f271595f6..df57d120ed30 100644 --- a/drivers/staging/vt6655/srom.c +++ b/drivers/staging/vt6655/srom.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: srom.c * * Purpose:Implement functions to access eeprom diff --git a/drivers/staging/vt6655/srom.h b/drivers/staging/vt6655/srom.h index 6e03ab6dfa9d..577f20dc4308 100644 --- a/drivers/staging/vt6655/srom.h +++ b/drivers/staging/vt6655/srom.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: srom.h * * Purpose: Implement functions to access eeprom diff --git a/drivers/staging/vt6655/tmacro.h b/drivers/staging/vt6655/tmacro.h index d6a0563ad55c..6795b5d74cfc 100644 --- a/drivers/staging/vt6655/tmacro.h +++ b/drivers/staging/vt6655/tmacro.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: tmacro.h * * Purpose: define basic common types and macros diff --git a/drivers/staging/vt6655/upc.h b/drivers/staging/vt6655/upc.h index 9806b5989014..61b3e568ff9a 100644 --- a/drivers/staging/vt6655/upc.h +++ b/drivers/staging/vt6655/upc.h @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * * File: upc.h * * Purpose: Macros to access device diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c index 882fe54ce41d..b29ba237fa29 100644 --- a/drivers/staging/vt6656/baseband.c +++ b/drivers/staging/vt6656/baseband.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: baseband.c * * Purpose: Implement functions to access baseband diff --git a/drivers/staging/vt6656/baseband.h b/drivers/staging/vt6656/baseband.h index fe1c25c64cca..a907e3026012 100644 --- a/drivers/staging/vt6656/baseband.h +++ b/drivers/staging/vt6656/baseband.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: baseband.h * * Purpose: Implement functions to access baseband diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c index 4fd9cd64c6e8..501f482b41c4 100644 --- a/drivers/staging/vt6656/card.c +++ b/drivers/staging/vt6656/card.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: card.c * Purpose: Provide functions to setup NIC operation mode * Functions: diff --git a/drivers/staging/vt6656/card.h b/drivers/staging/vt6656/card.h index 7f08cda27e2c..0a91d9ba4688 100644 --- a/drivers/staging/vt6656/card.h +++ b/drivers/staging/vt6656/card.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: card.h * * Purpose: Provide functions to setup NIC operation mode diff --git a/drivers/staging/vt6656/channel.c b/drivers/staging/vt6656/channel.c index a4299f405d7f..5d57d34577f5 100644 --- a/drivers/staging/vt6656/channel.c +++ b/drivers/staging/vt6656/channel.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: channel.c * * Purpose: Channel number mapping diff --git a/drivers/staging/vt6656/channel.h b/drivers/staging/vt6656/channel.h index 62f18a959098..6d0d2825d992 100644 --- a/drivers/staging/vt6656/channel.h +++ b/drivers/staging/vt6656/channel.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: channel.h * * Purpose: Country Regulation Rules header file diff --git a/drivers/staging/vt6656/desc.h b/drivers/staging/vt6656/desc.h index 59e3071021bd..ac45ebb71195 100644 --- a/drivers/staging/vt6656/desc.h +++ b/drivers/staging/vt6656/desc.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: desc.h * * Purpose:The header file of descriptor diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h index 74715c854856..a2feeb916836 100644 --- a/drivers/staging/vt6656/device.h +++ b/drivers/staging/vt6656/device.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: device.h * * Purpose: MAC Data structure diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c index 655f0002f880..c3b5b1431048 100644 --- a/drivers/staging/vt6656/dpc.c +++ b/drivers/staging/vt6656/dpc.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: dpc.c * * Purpose: handle dpc rx functions diff --git a/drivers/staging/vt6656/dpc.h b/drivers/staging/vt6656/dpc.h index 5d0454f3af0e..ddd0cb710512 100644 --- a/drivers/staging/vt6656/dpc.h +++ b/drivers/staging/vt6656/dpc.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: dpc.h * * Purpose: diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c index 093a6048bd22..38521c338917 100644 --- a/drivers/staging/vt6656/firmware.c +++ b/drivers/staging/vt6656/firmware.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: baseband.c * * Purpose: Implement functions to access baseband diff --git a/drivers/staging/vt6656/firmware.h b/drivers/staging/vt6656/firmware.h index f753019c94c9..f30ae90cbb1f 100644 --- a/drivers/staging/vt6656/firmware.h +++ b/drivers/staging/vt6656/firmware.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: firmware.h * * Purpose: Version and Release Information diff --git a/drivers/staging/vt6656/int.c b/drivers/staging/vt6656/int.c index c6ffbe0e2728..504424b19fcf 100644 --- a/drivers/staging/vt6656/int.c +++ b/drivers/staging/vt6656/int.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: int.c * * Purpose: Handle USB interrupt endpoint diff --git a/drivers/staging/vt6656/int.h b/drivers/staging/vt6656/int.h index b5f1b4b02ce4..1e6ff925701a 100644 --- a/drivers/staging/vt6656/int.h +++ b/drivers/staging/vt6656/int.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: int.h * * Purpose: diff --git a/drivers/staging/vt6656/key.c b/drivers/staging/vt6656/key.c index cc18cb141bff..91dede54cc1f 100644 --- a/drivers/staging/vt6656/key.c +++ b/drivers/staging/vt6656/key.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: key.c * * Purpose: Implement functions for 802.11i Key management diff --git a/drivers/staging/vt6656/key.h b/drivers/staging/vt6656/key.h index cfc6c2131536..1306ff441b87 100644 --- a/drivers/staging/vt6656/key.h +++ b/drivers/staging/vt6656/key.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: key.h * * Purpose: Implement functions for 802.11i Key management diff --git a/drivers/staging/vt6656/mac.c b/drivers/staging/vt6656/mac.c index 417fdad1f9ae..0b543854ea97 100644 --- a/drivers/staging/vt6656/mac.c +++ b/drivers/staging/vt6656/mac.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: mac.c * * Purpose: MAC routines diff --git a/drivers/staging/vt6656/mac.h b/drivers/staging/vt6656/mac.h index 29f37a0ff156..94e700fcd0b6 100644 --- a/drivers/staging/vt6656/mac.h +++ b/drivers/staging/vt6656/mac.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: mac.h * * Purpose: MAC routines diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c index cc6d8778fe5b..ccafcc2c87ac 100644 --- a/drivers/staging/vt6656/main_usb.c +++ b/drivers/staging/vt6656/main_usb.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: main_usb.c * * Purpose: driver entry for initial, open, close, tx and rx. @@ -437,11 +427,8 @@ static bool vnt_alloc_bufs(struct vnt_private *priv) for (ii = 0; ii < priv->num_rcb; ii++) { priv->rcb[ii] = kzalloc(sizeof(*priv->rcb[ii]), GFP_KERNEL); - if (!priv->rcb[ii]) { - dev_err(&priv->usb->dev, - "failed to allocate rcb no %d\n", ii); + if (!priv->rcb[ii]) goto free_rx_tx; - } rcb = priv->rcb[ii]; diff --git a/drivers/staging/vt6656/power.c b/drivers/staging/vt6656/power.c index c466e0614bc4..7a086c72d5a8 100644 --- a/drivers/staging/vt6656/power.c +++ b/drivers/staging/vt6656/power.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: power.c * * Purpose: Handles 802.11 power management functions diff --git a/drivers/staging/vt6656/power.h b/drivers/staging/vt6656/power.h index 859e75fc77ac..d5a3198206da 100644 --- a/drivers/staging/vt6656/power.h +++ b/drivers/staging/vt6656/power.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: power.h * * Purpose: Handles 802.11 power management functions diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c index 3a9d19a0b842..18f75dcc65d2 100644 --- a/drivers/staging/vt6656/rf.c +++ b/drivers/staging/vt6656/rf.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: rf.c * * Purpose: rf function code diff --git a/drivers/staging/vt6656/rf.h b/drivers/staging/vt6656/rf.h index c907a18047d2..f77866a9c177 100644 --- a/drivers/staging/vt6656/rf.h +++ b/drivers/staging/vt6656/rf.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: rf.h * * Purpose: diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index a44abcce6fb4..26ca3fa29301 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: rxtx.c * * Purpose: handle WMAC/802.3/802.11 rx & tx functions diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h index 1ba8647bea86..44698f41a234 100644 --- a/drivers/staging/vt6656/rxtx.h +++ b/drivers/staging/vt6656/rxtx.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: rxtx.h * * Purpose: diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c index 23eaef458556..273176386a51 100644 --- a/drivers/staging/vt6656/usbpipe.c +++ b/drivers/staging/vt6656/usbpipe.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: usbpipe.c * * Purpose: Handle USB control endpoint diff --git a/drivers/staging/vt6656/usbpipe.h b/drivers/staging/vt6656/usbpipe.h index 9fc5ac0ef6c1..5d7708fcf557 100644 --- a/drivers/staging/vt6656/usbpipe.h +++ b/drivers/staging/vt6656/usbpipe.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: usbpipe.h * * Purpose: diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c index b2fc17f1381b..3eb2f11a5de1 100644 --- a/drivers/staging/vt6656/wcmd.c +++ b/drivers/staging/vt6656/wcmd.c @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: wcmd.c * * Purpose: Handles the management command interface functions diff --git a/drivers/staging/vt6656/wcmd.h b/drivers/staging/vt6656/wcmd.h index 727ec14380c4..4a96f4de980d 100644 --- a/drivers/staging/vt6656/wcmd.h +++ b/drivers/staging/vt6656/wcmd.h @@ -1,18 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. * All rights reserved. * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * * File: wcmd.h * * Purpose: Handles the management command interface functions diff --git a/drivers/staging/wilc1000/coreconfigurator.c b/drivers/staging/wilc1000/coreconfigurator.c index 8cf886d32afb..e98fc8e93011 100644 --- a/drivers/staging/wilc1000/coreconfigurator.c +++ b/drivers/staging/wilc1000/coreconfigurator.c @@ -201,7 +201,7 @@ static inline u16 get_cap_info(u8 *data) st = get_sub_type(data); - if ((st == BEACON) || (st == PROBE_RSP)) + if (st == BEACON || st == PROBE_RSP) index += TIME_STAMP_LEN + BEACON_INTERVAL_LEN; cap_info = data[index]; diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c index d69248a8c7b5..358354b3a2b4 100644 --- a/drivers/staging/wilc1000/host_interface.c +++ b/drivers/staging/wilc1000/host_interface.c @@ -202,7 +202,7 @@ struct host_if_msg { }; struct join_bss_param { - BSSTYPE_T bss_type; + enum bss_types bss_type; u8 dtim_period; u16 beacon_period; u16 cap_info; @@ -394,7 +394,7 @@ static void handle_set_operation_mode(struct wilc_vif *vif, ret = wilc_send_config_pkt(vif, SET_CFG, &wid, 1, wilc_get_vif_idx(vif)); - if ((hif_op_mode->mode) == IDLE_MODE) + if (hif_op_mode->mode == IDLE_MODE) complete(&hif_driver_comp); if (ret) @@ -760,8 +760,8 @@ static s32 handle_scan(struct wilc_vif *vif, struct scan_attr *scan_info) hif_drv->usr_scan_req.scan_result = scan_info->result; hif_drv->usr_scan_req.arg = scan_info->arg; - if ((hif_drv->hif_state >= HOST_IF_SCANNING) && - (hif_drv->hif_state < HOST_IF_CONNECTED)) { + if (hif_drv->hif_state >= HOST_IF_SCANNING && + hif_drv->hif_state < HOST_IF_CONNECTED) { netdev_err(vif->ndev, "Already scan\n"); result = -EBUSY; goto ERRORHANDLER; @@ -1025,7 +1025,7 @@ static s32 Handle_Connect(struct wilc_vif *vif, pu8CurrByte += MAX_SSID_LEN; *(pu8CurrByte++) = INFRASTRUCTURE; - if ((pstrHostIFconnectAttr->ch >= 1) && (pstrHostIFconnectAttr->ch <= 14)) { + if (pstrHostIFconnectAttr->ch >= 1 && pstrHostIFconnectAttr->ch <= 14) { *(pu8CurrByte++) = pstrHostIFconnectAttr->ch; } else { netdev_err(vif->ndev, "Channel out of range\n"); @@ -1258,8 +1258,8 @@ static s32 Handle_RcvdNtwrkInfo(struct wilc_vif *vif, if (hif_drv->usr_scan_req.scan_result) { wilc_parse_network_info(pstrRcvdNetworkInfo->buffer, &pstrNetworkInfo); - if ((!pstrNetworkInfo) || - (!hif_drv->usr_scan_req.scan_result)) { + if (!pstrNetworkInfo || + !hif_drv->usr_scan_req.scan_result) { netdev_err(vif->ndev, "driver is null\n"); result = -EINVAL; goto done; @@ -1340,8 +1340,8 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif, return -ENODEV; } - if ((hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) || - (hif_drv->hif_state == HOST_IF_CONNECTED) || + if (hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP || + hif_drv->hif_state == HOST_IF_CONNECTED || hif_drv->usr_scan_req.scan_result) { if (!pstrRcvdGnrlAsyncInfo->buffer || !hif_drv->usr_conn_req.conn_result) { @@ -1400,8 +1400,8 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif, } } - if ((u8MacStatus == MAC_CONNECTED) && - (strConnectInfo.status != SUCCESSFUL_STATUSCODE)) { + if (u8MacStatus == MAC_CONNECTED && + strConnectInfo.status != SUCCESSFUL_STATUSCODE) { netdev_err(vif->ndev, "Received MAC status is MAC_CONNECTED while the received status code in Asoc Resp is not SUCCESSFUL_STATUSCODE\n"); eth_zero_addr(wilc_connected_ssid); } else if (u8MacStatus == MAC_DISCONNECTED) { @@ -1412,8 +1412,8 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif, if (hif_drv->usr_conn_req.bssid) { memcpy(strConnectInfo.bssid, hif_drv->usr_conn_req.bssid, 6); - if ((u8MacStatus == MAC_CONNECTED) && - (strConnectInfo.status == SUCCESSFUL_STATUSCODE)) { + if (u8MacStatus == MAC_CONNECTED && + strConnectInfo.status == SUCCESSFUL_STATUSCODE) { memcpy(hif_drv->assoc_bssid, hif_drv->usr_conn_req.bssid, ETH_ALEN); } @@ -1434,8 +1434,8 @@ static s32 Handle_RcvdGnrlAsyncInfo(struct wilc_vif *vif, NULL, hif_drv->usr_conn_req.arg); - if ((u8MacStatus == MAC_CONNECTED) && - (strConnectInfo.status == SUCCESSFUL_STATUSCODE)) { + if (u8MacStatus == MAC_CONNECTED && + strConnectInfo.status == SUCCESSFUL_STATUSCODE) { wilc_set_power_mgmt(vif, 0, 0); hif_drv->hif_state = HOST_IF_CONNECTED; @@ -1864,8 +1864,8 @@ void wilc_resolve_disconnect_aberration(struct wilc_vif *vif) { if (!vif->hif_drv) return; - if ((vif->hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP) || - (vif->hif_drv->hif_state == HOST_IF_CONNECTING)) + if (vif->hif_drv->hif_state == HOST_IF_WAITING_CONN_RESP || + vif->hif_drv->hif_state == HOST_IF_CONNECTING) wilc_disconnect(vif, 1); } @@ -2414,7 +2414,7 @@ static void Handle_SetMulticastFilter(struct wilc_vif *vif, wid.id = (u16)WID_SETUP_MULTICAST_FILTER; wid.type = WID_BIN; - wid.size = sizeof(struct set_multicast) + ((strHostIfSetMulti->cnt) * ETH_ALEN); + wid.size = sizeof(struct set_multicast) + (strHostIfSetMulti->cnt * ETH_ALEN); wid.val = kmalloc(wid.size, GFP_KERNEL); if (!wid.val) goto ERRORHANDLER; @@ -3730,8 +3730,8 @@ int wilc_add_station(struct wilc_vif *vif, struct add_sta_param *sta_param) memcpy(add_sta_info, sta_param, sizeof(struct add_sta_param)); if (add_sta_info->rates_len > 0) { add_sta_info->rates = kmemdup(sta_param->rates, - add_sta_info->rates_len, - GFP_KERNEL); + add_sta_info->rates_len, + GFP_KERNEL); if (!add_sta_info->rates) return -ENOMEM; } diff --git a/drivers/staging/wilc1000/linux_wlan.c b/drivers/staging/wilc1000/linux_wlan.c index 119f3459b5bb..d9725efe0537 100644 --- a/drivers/staging/wilc1000/linux_wlan.c +++ b/drivers/staging/wilc1000/linux_wlan.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include "wilc_wfi_cfgoperations.h" #include "wilc_wlan_if.h" #include "wilc_wlan.h" @@ -694,7 +695,7 @@ static int wlan_initialize_threads(struct net_device *dev) wilc = vif->wilc; wilc->txq_thread = kthread_run(linux_wlan_txq_task, (void *)dev, - "K_TXQ_TASK"); + "K_TXQ_TASK"); if (IS_ERR(wilc->txq_thread)) { netdev_err(dev, "couldn't create TXQ thread\n"); wilc->close = 0; @@ -910,13 +911,13 @@ static void wilc_set_multicast_list(struct net_device *dev) if (dev->flags & IFF_PROMISC) return; - if ((dev->flags & IFF_ALLMULTI) || - (dev->mc.count) > WILC_MULTICAST_TABLE_SIZE) { + if (dev->flags & IFF_ALLMULTI || + dev->mc.count > WILC_MULTICAST_TABLE_SIZE) { wilc_setup_multicast_filter(vif, false, 0); return; } - if ((dev->mc.count) == 0) { + if (dev->mc.count == 0) { wilc_setup_multicast_filter(vif, true, 0); return; } @@ -1029,7 +1030,7 @@ static int wilc_mac_close(struct net_device *ndev) if (!hif_drv) return 0; - if ((wl->open_ifcs) > 0) + if (wl->open_ifcs > 0) wl->open_ifcs--; else return 0; diff --git a/drivers/staging/wilc1000/wilc_debugfs.c b/drivers/staging/wilc1000/wilc_debugfs.c index ce54864569c7..0deb61a21b27 100644 --- a/drivers/staging/wilc1000/wilc_debugfs.c +++ b/drivers/staging/wilc1000/wilc_debugfs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * NewportMedia WiFi chipset driver test tools - wilc-debug * Copyright (c) 2012 NewportMedia Inc. diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c index 0189e3edbbbe..bb65b374c1ce 100644 --- a/drivers/staging/wilc1000/wilc_sdio.c +++ b/drivers/staging/wilc1000/wilc_sdio.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) Atmel Corporation. All rights reserved. * @@ -374,7 +375,7 @@ static int sdio_write_reg(struct wilc *wilc, u32 addr, u32 data) data = cpu_to_le32(data); - if ((addr >= 0xf0) && (addr <= 0xff)) { + if (addr >= 0xf0 && addr <= 0xff) { struct sdio_cmd52 cmd; cmd.read_write = 1; @@ -514,7 +515,7 @@ static int sdio_read_reg(struct wilc *wilc, u32 addr, u32 *data) struct sdio_func *func = dev_to_sdio_func(wilc->dev); int ret; - if ((addr >= 0xf0) && (addr <= 0xff)) { + if (addr >= 0xf0 && addr <= 0xff) { struct sdio_cmd52 cmd; cmd.read_write = 0; diff --git a/drivers/staging/wilc1000/wilc_spi.c b/drivers/staging/wilc1000/wilc_spi.c index 5ef84410e0f2..8f71a6022721 100644 --- a/drivers/staging/wilc1000/wilc_spi.c +++ b/drivers/staging/wilc1000/wilc_spi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) Atmel Corporation. All rights reserved. * @@ -389,11 +390,11 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, #define NUM_DATA_BYTES (4) #define NUM_CRC_BYTES (2) #define NUM_DUMMY_BYTES (3) - if ((cmd == CMD_RESET) || - (cmd == CMD_TERMINATE) || - (cmd == CMD_REPEAT)) { + if (cmd == CMD_RESET || + cmd == CMD_TERMINATE || + cmd == CMD_REPEAT) { len2 = len + (NUM_SKIP_BYTES + NUM_RSP_BYTES + NUM_DUMMY_BYTES); - } else if ((cmd == CMD_INTERNAL_READ) || (cmd == CMD_SINGLE_READ)) { + } else if (cmd == CMD_INTERNAL_READ || cmd == CMD_SINGLE_READ) { if (!g_spi.crc_off) { len2 = len + (NUM_RSP_BYTES + NUM_DATA_HDR_BYTES + NUM_DATA_BYTES + NUM_CRC_BYTES + NUM_DUMMY_BYTES); @@ -424,9 +425,9 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, /** * Command/Control response **/ - if ((cmd == CMD_RESET) || - (cmd == CMD_TERMINATE) || - (cmd == CMD_REPEAT)) { + if (cmd == CMD_RESET || + cmd == CMD_TERMINATE || + cmd == CMD_REPEAT) { rix++; /* skip 1 byte */ } @@ -452,8 +453,8 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, return N_FAIL; } - if ((cmd == CMD_INTERNAL_READ) || (cmd == CMD_SINGLE_READ) || - (cmd == CMD_DMA_READ) || (cmd == CMD_DMA_EXT_READ)) { + if (cmd == CMD_INTERNAL_READ || cmd == CMD_SINGLE_READ || + cmd == CMD_DMA_READ || cmd == CMD_DMA_EXT_READ) { int retry; /* u16 crc1, crc2; */ u8 crc[2]; @@ -479,7 +480,7 @@ static int spi_cmd_complete(struct wilc *wilc, u8 cmd, u32 adr, u8 *b, u32 sz, return N_RESET; } - if ((cmd == CMD_INTERNAL_READ) || (cmd == CMD_SINGLE_READ)) { + if (cmd == CMD_INTERNAL_READ || cmd == CMD_SINGLE_READ) { /** * Read bytes **/ diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c index 028da1dc1b81..621810d70450 100644 --- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c +++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c @@ -379,7 +379,7 @@ static void CfgScanResult(enum scan_event scan_event, struct cfg80211_bss *bss = NULL; priv = user_void; - if (priv->bCfgScanning) { + if (priv->cfg_scanning) { if (scan_event == SCAN_EVENT_NETWORK_FOUND) { wiphy = priv->dev->ieee80211_ptr->wiphy; @@ -399,8 +399,8 @@ static void CfgScanResult(enum scan_event scan_event, return; if (network_info->new_network) { - if (priv->u32RcvdChCount < MAX_NUM_SCANNED_NETWORKS) { - priv->u32RcvdChCount++; + if (priv->rcvd_ch_cnt < MAX_NUM_SCANNED_NETWORKS) { + priv->rcvd_ch_cnt++; add_network_to_shadow(network_info, priv, join_params); @@ -422,7 +422,7 @@ static void CfgScanResult(enum scan_event scan_event, } else { u32 i; - for (i = 0; i < priv->u32RcvdChCount; i++) { + for (i = 0; i < priv->rcvd_ch_cnt; i++) { if (memcmp(last_scanned_shadow[i].bssid, network_info->bssid, 6) == 0) { last_scanned_shadow[i].rssi = network_info->rssi; last_scanned_shadow[i].time_scan = jiffies; @@ -436,21 +436,21 @@ static void CfgScanResult(enum scan_event scan_event, mutex_lock(&priv->scan_req_lock); - if (priv->pstrScanReq) { + if (priv->scan_req) { struct cfg80211_scan_info info = { .aborted = false, }; - cfg80211_scan_done(priv->pstrScanReq, &info); - priv->u32RcvdChCount = 0; - priv->bCfgScanning = false; - priv->pstrScanReq = NULL; + cfg80211_scan_done(priv->scan_req, &info); + priv->rcvd_ch_cnt = 0; + priv->cfg_scanning = false; + priv->scan_req = NULL; } mutex_unlock(&priv->scan_req_lock); } else if (scan_event == SCAN_EVENT_ABORTED) { mutex_lock(&priv->scan_req_lock); - if (priv->pstrScanReq) { + if (priv->scan_req) { struct cfg80211_scan_info info = { .aborted = false, }; @@ -458,9 +458,9 @@ static void CfgScanResult(enum scan_event scan_event, update_scan_time(); refresh_scan(priv, false); - cfg80211_scan_done(priv->pstrScanReq, &info); - priv->bCfgScanning = false; - priv->pstrScanReq = NULL; + cfg80211_scan_done(priv->scan_req, &info); + priv->cfg_scanning = false; + priv->scan_req = NULL; } mutex_unlock(&priv->scan_req_lock); } @@ -469,92 +469,92 @@ static void CfgScanResult(enum scan_event scan_event, int wilc_connecting; -static void CfgConnectResult(enum conn_event enuConnDisconnEvent, - struct connect_info *pstrConnectInfo, - u8 u8MacStatus, - struct disconnect_info *pstrDisconnectNotifInfo, - void *pUserVoid) +static void cfg_connect_result(enum conn_event conn_disconn_evt, + struct connect_info *conn_info, + u8 mac_status, + struct disconnect_info *disconn_info, + void *priv_data) { struct wilc_priv *priv; struct net_device *dev; - struct host_if_drv *pstrWFIDrv; - u8 NullBssid[ETH_ALEN] = {0}; + struct host_if_drv *wfi_drv; + u8 null_bssid[ETH_ALEN] = {0}; struct wilc *wl; struct wilc_vif *vif; wilc_connecting = 0; - priv = pUserVoid; + priv = priv_data; dev = priv->dev; vif = netdev_priv(dev); wl = vif->wilc; - pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; + wfi_drv = (struct host_if_drv *)priv->hif_drv; - if (enuConnDisconnEvent == CONN_DISCONN_EVENT_CONN_RESP) { - u16 u16ConnectStatus; + if (conn_disconn_evt == CONN_DISCONN_EVENT_CONN_RESP) { + u16 connect_status; - u16ConnectStatus = pstrConnectInfo->status; + connect_status = conn_info->status; - if ((u8MacStatus == MAC_DISCONNECTED) && - (pstrConnectInfo->status == SUCCESSFUL_STATUSCODE)) { - u16ConnectStatus = WLAN_STATUS_UNSPECIFIED_FAILURE; - wilc_wlan_set_bssid(priv->dev, NullBssid, + if (mac_status == MAC_DISCONNECTED && + conn_info->status == SUCCESSFUL_STATUSCODE) { + connect_status = WLAN_STATUS_UNSPECIFIED_FAILURE; + wilc_wlan_set_bssid(priv->dev, null_bssid, STATION_MODE); eth_zero_addr(wilc_connected_ssid); - if (!pstrWFIDrv->p2p_connect) + if (!wfi_drv->p2p_connect) wlan_channel = INVALID_CHANNEL; netdev_err(dev, "Unspecified failure\n"); } - if (u16ConnectStatus == WLAN_STATUS_SUCCESS) { - bool bNeedScanRefresh = false; + if (connect_status == WLAN_STATUS_SUCCESS) { + bool scan_refresh = false; u32 i; - memcpy(priv->au8AssociatedBss, pstrConnectInfo->bssid, ETH_ALEN); + memcpy(priv->associated_bss, conn_info->bssid, ETH_ALEN); for (i = 0; i < last_scanned_cnt; i++) { if (memcmp(last_scanned_shadow[i].bssid, - pstrConnectInfo->bssid, + conn_info->bssid, ETH_ALEN) == 0) { unsigned long now = jiffies; if (time_after(now, last_scanned_shadow[i].time_scan_cached + (unsigned long)(nl80211_SCAN_RESULT_EXPIRE - (1 * HZ)))) - bNeedScanRefresh = true; + scan_refresh = true; break; } } - if (bNeedScanRefresh) + if (scan_refresh) refresh_scan(priv, true); } - cfg80211_connect_result(dev, pstrConnectInfo->bssid, - pstrConnectInfo->req_ies, pstrConnectInfo->req_ies_len, - pstrConnectInfo->resp_ies, pstrConnectInfo->resp_ies_len, - u16ConnectStatus, GFP_KERNEL); - } else if (enuConnDisconnEvent == CONN_DISCONN_EVENT_DISCONN_NOTIF) { + cfg80211_connect_result(dev, conn_info->bssid, + conn_info->req_ies, conn_info->req_ies_len, + conn_info->resp_ies, conn_info->resp_ies_len, + connect_status, GFP_KERNEL); + } else if (conn_disconn_evt == CONN_DISCONN_EVENT_DISCONN_NOTIF) { wilc_optaining_ip = false; p2p_local_random = 0x01; p2p_recv_random = 0x00; wilc_ie = false; - eth_zero_addr(priv->au8AssociatedBss); - wilc_wlan_set_bssid(priv->dev, NullBssid, STATION_MODE); + eth_zero_addr(priv->associated_bss); + wilc_wlan_set_bssid(priv->dev, null_bssid, STATION_MODE); eth_zero_addr(wilc_connected_ssid); - if (!pstrWFIDrv->p2p_connect) + if (!wfi_drv->p2p_connect) wlan_channel = INVALID_CHANNEL; - if ((pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) - pstrDisconnectNotifInfo->reason = 3; - else if ((!pstrWFIDrv->IFC_UP) && (dev == wl->vif[1]->ndev)) - pstrDisconnectNotifInfo->reason = 1; + if (wfi_drv->IFC_UP && dev == wl->vif[1]->ndev) + disconn_info->reason = 3; + else if (!wfi_drv->IFC_UP && dev == wl->vif[1]->ndev) + disconn_info->reason = 1; - cfg80211_disconnected(dev, pstrDisconnectNotifInfo->reason, pstrDisconnectNotifInfo->ie, - pstrDisconnectNotifInfo->ie_len, false, + cfg80211_disconnected(dev, disconn_info->reason, disconn_info->ie, + disconn_info->ie_len, false, GFP_KERNEL); } } @@ -585,7 +585,7 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) { struct wilc_priv *priv; u32 i; - s32 s32Error = 0; + s32 ret = 0; u8 au8ScanChanList[MAX_NUM_SCANNED_NETWORKS]; struct hidden_network strHiddenNetwork; struct wilc_vif *vif; @@ -593,13 +593,13 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) priv = wiphy_priv(wiphy); vif = netdev_priv(priv->dev); - priv->pstrScanReq = request; + priv->scan_req = request; - priv->u32RcvdChCount = 0; + priv->rcvd_ch_cnt = 0; reset_shadow_found(); - priv->bCfgScanning = true; + priv->cfg_scanning = true; if (request->n_channels <= MAX_NUM_SCANNED_NETWORKS) { for (i = 0; i < request->n_channels; i++) au8ScanChanList[i] = (u8)ieee80211_frequency_to_channel(request->channels[i]->center_freq); @@ -622,56 +622,56 @@ static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) strHiddenNetwork.n_ssids -= 1; } } - s32Error = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN, - au8ScanChanList, - request->n_channels, - (const u8 *)request->ie, - request->ie_len, CfgScanResult, - (void *)priv, &strHiddenNetwork); + ret = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN, + au8ScanChanList, + request->n_channels, + (const u8 *)request->ie, + request->ie_len, CfgScanResult, + (void *)priv, &strHiddenNetwork); } else { - s32Error = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN, - au8ScanChanList, - request->n_channels, - (const u8 *)request->ie, - request->ie_len, CfgScanResult, - (void *)priv, NULL); + ret = wilc_scan(vif, USER_SCAN, ACTIVE_SCAN, + au8ScanChanList, + request->n_channels, + (const u8 *)request->ie, + request->ie_len, CfgScanResult, + (void *)priv, NULL); } } else { netdev_err(priv->dev, "Requested scanned channels over\n"); } - if (s32Error != 0) - s32Error = -EBUSY; + if (ret != 0) + ret = -EBUSY; - return s32Error; + return ret; } static int connect(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_connect_params *sme) { - s32 s32Error = 0; + s32 ret = 0; u32 i; u32 sel_bssi_idx = UINT_MAX; u8 u8security = NO_ENCRYPT; - enum AUTHTYPE tenuAuth_type = ANY; + enum AUTHTYPE auth_type = ANY; struct wilc_priv *priv; - struct host_if_drv *pstrWFIDrv; + struct host_if_drv *wfi_drv; struct network_info *pstrNetworkInfo = NULL; struct wilc_vif *vif; wilc_connecting = 1; priv = wiphy_priv(wiphy); vif = netdev_priv(priv->dev); - pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; + wfi_drv = (struct host_if_drv *)priv->hif_drv; if (!(strncmp(sme->ssid, "DIRECT-", 7))) - pstrWFIDrv->p2p_connect = 1; + wfi_drv->p2p_connect = 1; else - pstrWFIDrv->p2p_connect = 0; + wfi_drv->p2p_connect = 0; for (i = 0; i < last_scanned_cnt; i++) { - if ((sme->ssid_len == last_scanned_shadow[i].ssid_len) && + if (sme->ssid_len == last_scanned_shadow[i].ssid_len && memcmp(last_scanned_shadow[i].ssid, sme->ssid, sme->ssid_len) == 0) { @@ -694,9 +694,9 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, if (sel_bssi_idx < last_scanned_cnt) { pstrNetworkInfo = &last_scanned_shadow[sel_bssi_idx]; } else { - s32Error = -ENOENT; + ret = -ENOENT; wilc_connecting = 0; - return s32Error; + return ret; } memset(priv->WILC_WFI_wep_key, 0, sizeof(priv->WILC_WFI_wep_key)); @@ -744,10 +744,10 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, else u8security = ENCRYPT_ENABLED | WPA | AES; } else { - s32Error = -ENOTSUPP; + ret = -ENOTSUPP; netdev_err(dev, "Not supported cipher\n"); wilc_connecting = 0; - return s32Error; + return ret; } } @@ -763,11 +763,11 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, switch (sme->auth_type) { case NL80211_AUTHTYPE_OPEN_SYSTEM: - tenuAuth_type = OPEN_SYSTEM; + auth_type = OPEN_SYSTEM; break; case NL80211_AUTHTYPE_SHARED_KEY: - tenuAuth_type = SHARED_KEY; + auth_type = SHARED_KEY; break; default: @@ -777,7 +777,7 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, if (sme->crypto.n_akm_suites) { switch (sme->crypto.akm_suites[0]) { case WLAN_AKM_SUITE_8021X: - tenuAuth_type = IEEE8021; + auth_type = IEEE8021; break; default: @@ -787,35 +787,35 @@ static int connect(struct wiphy *wiphy, struct net_device *dev, curr_channel = pstrNetworkInfo->ch; - if (!pstrWFIDrv->p2p_connect) + if (!wfi_drv->p2p_connect) wlan_channel = pstrNetworkInfo->ch; wilc_wlan_set_bssid(dev, pstrNetworkInfo->bssid, STATION_MODE); - s32Error = wilc_set_join_req(vif, pstrNetworkInfo->bssid, sme->ssid, - sme->ssid_len, sme->ie, sme->ie_len, - CfgConnectResult, (void *)priv, - u8security, tenuAuth_type, - pstrNetworkInfo->ch, - pstrNetworkInfo->join_params); - if (s32Error != 0) { + ret = wilc_set_join_req(vif, pstrNetworkInfo->bssid, sme->ssid, + sme->ssid_len, sme->ie, sme->ie_len, + cfg_connect_result, (void *)priv, + u8security, auth_type, + pstrNetworkInfo->ch, + pstrNetworkInfo->join_params); + if (ret != 0) { netdev_err(dev, "wilc_set_join_req(): Error\n"); - s32Error = -ENOENT; + ret = -ENOENT; wilc_connecting = 0; - return s32Error; + return ret; } - return s32Error; + return ret; } static int disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_code) { - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv; - struct host_if_drv *pstrWFIDrv; + struct host_if_drv *wfi_drv; struct wilc_vif *vif; struct wilc *wilc; - u8 NullBssid[ETH_ALEN] = {0}; + u8 null_bssid[ETH_ALEN] = {0}; wilc_connecting = 0; priv = wiphy_priv(wiphy); @@ -831,23 +831,23 @@ static int disconnect(struct wiphy *wiphy, struct net_device *dev, u16 reason_co return 0; } - pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; - if (!pstrWFIDrv->p2p_connect) + wfi_drv = (struct host_if_drv *)priv->hif_drv; + if (!wfi_drv->p2p_connect) wlan_channel = INVALID_CHANNEL; - wilc_wlan_set_bssid(priv->dev, NullBssid, STATION_MODE); + wilc_wlan_set_bssid(priv->dev, null_bssid, STATION_MODE); p2p_local_random = 0x01; p2p_recv_random = 0x00; wilc_ie = false; - pstrWFIDrv->p2p_timeout = 0; + wfi_drv->p2p_timeout = 0; - s32Error = wilc_disconnect(vif, reason_code); - if (s32Error != 0) { + ret = wilc_disconnect(vif, reason_code); + if (ret != 0) { netdev_err(priv->dev, "Error in disconnecting\n"); - s32Error = -EINVAL; + ret = -EINVAL; } - return s32Error; + return ret; } static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, @@ -855,14 +855,14 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, const u8 *mac_addr, struct key_params *params) { - s32 s32Error = 0, KeyLen = params->key_len; + s32 ret = 0, keylen = params->key_len; struct wilc_priv *priv; - const u8 *pu8RxMic = NULL; - const u8 *pu8TxMic = NULL; + const u8 *rx_mic = NULL; + const u8 *tx_mic = NULL; u8 u8mode = NO_ENCRYPT; u8 u8gmode = NO_ENCRYPT; u8 u8pmode = NO_ENCRYPT; - enum AUTHTYPE tenuAuth_type = ANY; + enum AUTHTYPE auth_type = ANY; struct wilc *wl; struct wilc_vif *vif; @@ -877,7 +877,7 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, priv->WILC_WFI_wep_key_len[key_index] = params->key_len; memcpy(priv->WILC_WFI_wep_key[key_index], params->key, params->key_len); - tenuAuth_type = OPEN_SYSTEM; + auth_type = OPEN_SYSTEM; if (params->cipher == WLAN_CIPHER_SUITE_WEP40) u8mode = ENCRYPT_ENABLED | WEP; @@ -886,7 +886,7 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, wilc_add_wep_key_bss_ap(vif, params->key, params->key_len, key_index, - u8mode, tenuAuth_type); + u8mode, auth_type); break; } if (memcmp(params->key, priv->WILC_WFI_wep_key[key_index], params->key_len)) { @@ -922,9 +922,9 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, priv->wilc_groupkey = u8gmode; if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) { - pu8TxMic = params->key + 24; - pu8RxMic = params->key + 16; - KeyLen = params->key_len - 16; + tx_mic = params->key + 24; + rx_mic = params->key + 16; + keylen = params->key_len - 16; } kfree(priv->wilc_gtk[key_index]->key); @@ -932,7 +932,7 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, memcpy(priv->wilc_gtk[key_index]->key, params->key, params->key_len); kfree(priv->wilc_gtk[key_index]->seq); - if ((params->seq_len) > 0) { + if (params->seq_len > 0) { priv->wilc_gtk[key_index]->seq = kmalloc(params->seq_len, GFP_KERNEL); memcpy(priv->wilc_gtk[key_index]->seq, params->seq, params->seq_len); } @@ -941,10 +941,10 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, priv->wilc_gtk[key_index]->key_len = params->key_len; priv->wilc_gtk[key_index]->seq_len = params->seq_len; - wilc_add_rx_gtk(vif, params->key, KeyLen, + wilc_add_rx_gtk(vif, params->key, keylen, key_index, params->seq_len, - params->seq, pu8RxMic, - pu8TxMic, AP_MODE, u8gmode); + params->seq, rx_mic, + tx_mic, AP_MODE, u8gmode); } else { if (params->cipher == WLAN_CIPHER_SUITE_TKIP) @@ -953,9 +953,9 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, u8pmode = priv->wilc_groupkey | AES; if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) { - pu8TxMic = params->key + 24; - pu8RxMic = params->key + 16; - KeyLen = params->key_len - 16; + tx_mic = params->key + 24; + rx_mic = params->key + 16; + keylen = params->key_len - 16; } kfree(priv->wilc_ptk[key_index]->key); @@ -964,20 +964,20 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, kfree(priv->wilc_ptk[key_index]->seq); - if ((params->seq_len) > 0) + if (params->seq_len > 0) priv->wilc_ptk[key_index]->seq = kmalloc(params->seq_len, GFP_KERNEL); memcpy(priv->wilc_ptk[key_index]->key, params->key, params->key_len); - if ((params->seq_len) > 0) + if (params->seq_len > 0) memcpy(priv->wilc_ptk[key_index]->seq, params->seq, params->seq_len); priv->wilc_ptk[key_index]->cipher = params->cipher; priv->wilc_ptk[key_index]->key_len = params->key_len; priv->wilc_ptk[key_index]->seq_len = params->seq_len; - wilc_add_ptk(vif, params->key, KeyLen, - mac_addr, pu8RxMic, pu8TxMic, + wilc_add_ptk(vif, params->key, keylen, + mac_addr, rx_mic, tx_mic, AP_MODE, u8pmode, key_index); } break; @@ -987,9 +987,9 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, u8mode = 0; if (!pairwise) { if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) { - pu8RxMic = params->key + 24; - pu8TxMic = params->key + 16; - KeyLen = params->key_len - 16; + rx_mic = params->key + 24; + tx_mic = params->key + 16; + keylen = params->key_len - 16; } if (!g_gtk_keys_saved && netdev == wl->vif[0]->ndev) { @@ -1013,16 +1013,16 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, g_gtk_keys_saved = true; } - wilc_add_rx_gtk(vif, params->key, KeyLen, + wilc_add_rx_gtk(vif, params->key, keylen, key_index, params->seq_len, - params->seq, pu8RxMic, - pu8TxMic, STATION_MODE, + params->seq, rx_mic, + tx_mic, STATION_MODE, u8mode); } else { if (params->key_len > 16 && params->cipher == WLAN_CIPHER_SUITE_TKIP) { - pu8RxMic = params->key + 24; - pu8TxMic = params->key + 16; - KeyLen = params->key_len - 16; + rx_mic = params->key + 24; + tx_mic = params->key + 16; + keylen = params->key_len - 16; } if (!g_ptk_keys_saved && netdev == wl->vif[0]->ndev) { @@ -1046,8 +1046,8 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, g_ptk_keys_saved = true; } - wilc_add_ptk(vif, params->key, KeyLen, - mac_addr, pu8RxMic, pu8TxMic, + wilc_add_ptk(vif, params->key, keylen, + mac_addr, rx_mic, tx_mic, STATION_MODE, u8mode, key_index); } } @@ -1055,10 +1055,10 @@ static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, default: netdev_err(netdev, "Not supported cipher\n"); - s32Error = -ENOTSUPP; + ret = -ENOTSUPP; } - return s32Error; + return ret; } static int del_key(struct wiphy *wiphy, struct net_device *netdev, @@ -1082,7 +1082,7 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev, kfree(g_key_wep_params.key); g_key_wep_params.key = NULL; - if ((priv->wilc_gtk[key_index]) != NULL) { + if (priv->wilc_gtk[key_index] != NULL) { kfree(priv->wilc_gtk[key_index]->key); priv->wilc_gtk[key_index]->key = NULL; kfree(priv->wilc_gtk[key_index]->seq); @@ -1092,7 +1092,7 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev, priv->wilc_gtk[key_index] = NULL; } - if ((priv->wilc_ptk[key_index]) != NULL) { + if (priv->wilc_ptk[key_index] != NULL) { kfree(priv->wilc_ptk[key_index]->key); priv->wilc_ptk[key_index]->key = NULL; kfree(priv->wilc_ptk[key_index]->seq); @@ -1182,7 +1182,7 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev, if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) { for (i = 0; i < NUM_STA_ASSOCIATED; i++) { - if (!(memcmp(mac, priv->assoc_stainfo.au8Sta_AssociatedBss[i], ETH_ALEN))) { + if (!(memcmp(mac, priv->assoc_stainfo.sta_associated_bss[i], ETH_ALEN))) { associatedsta = i; break; } @@ -1200,9 +1200,9 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev, } if (vif->iftype == STATION_MODE) { - struct rf_info strStatistics; + struct rf_info stats; - wilc_get_statistics(vif, &strStatistics); + wilc_get_statistics(vif, &stats); sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_RX_PACKETS) | @@ -1210,16 +1210,16 @@ static int get_station(struct wiphy *wiphy, struct net_device *dev, BIT(NL80211_STA_INFO_TX_FAILED) | BIT(NL80211_STA_INFO_TX_BITRATE); - sinfo->signal = strStatistics.rssi; - sinfo->rx_packets = strStatistics.rx_cnt; - sinfo->tx_packets = strStatistics.tx_cnt + strStatistics.tx_fail_cnt; - sinfo->tx_failed = strStatistics.tx_fail_cnt; - sinfo->txrate.legacy = strStatistics.link_speed * 10; + sinfo->signal = stats.rssi; + sinfo->rx_packets = stats.rx_cnt; + sinfo->tx_packets = stats.tx_cnt + stats.tx_fail_cnt; + sinfo->tx_failed = stats.tx_fail_cnt; + sinfo->txrate.legacy = stats.link_speed * 10; - if ((strStatistics.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH) && - (strStatistics.link_speed != DEFAULT_LINK_SPEED)) + if (stats.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH && + stats.link_speed != DEFAULT_LINK_SPEED) wilc_enable_tcp_ack_filter(true); - else if (strStatistics.link_speed != DEFAULT_LINK_SPEED) + else if (stats.link_speed != DEFAULT_LINK_SPEED) wilc_enable_tcp_ack_filter(false); } return 0; @@ -1233,46 +1233,46 @@ static int change_bss(struct wiphy *wiphy, struct net_device *dev, static int set_wiphy_params(struct wiphy *wiphy, u32 changed) { - s32 s32Error = 0; - struct cfg_param_attr pstrCfgParamVal; + s32 ret = 0; + struct cfg_param_attr cfg_param_val; struct wilc_priv *priv; struct wilc_vif *vif; priv = wiphy_priv(wiphy); vif = netdev_priv(priv->dev); - pstrCfgParamVal.flag = 0; + cfg_param_val.flag = 0; if (changed & WIPHY_PARAM_RETRY_SHORT) { - pstrCfgParamVal.flag |= RETRY_SHORT; - pstrCfgParamVal.short_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_short; + cfg_param_val.flag |= RETRY_SHORT; + cfg_param_val.short_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_short; } if (changed & WIPHY_PARAM_RETRY_LONG) { - pstrCfgParamVal.flag |= RETRY_LONG; - pstrCfgParamVal.long_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_long; + cfg_param_val.flag |= RETRY_LONG; + cfg_param_val.long_retry_limit = priv->dev->ieee80211_ptr->wiphy->retry_long; } if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { - pstrCfgParamVal.flag |= FRAG_THRESHOLD; - pstrCfgParamVal.frag_threshold = priv->dev->ieee80211_ptr->wiphy->frag_threshold; + cfg_param_val.flag |= FRAG_THRESHOLD; + cfg_param_val.frag_threshold = priv->dev->ieee80211_ptr->wiphy->frag_threshold; } if (changed & WIPHY_PARAM_RTS_THRESHOLD) { - pstrCfgParamVal.flag |= RTS_THRESHOLD; - pstrCfgParamVal.rts_threshold = priv->dev->ieee80211_ptr->wiphy->rts_threshold; + cfg_param_val.flag |= RTS_THRESHOLD; + cfg_param_val.rts_threshold = priv->dev->ieee80211_ptr->wiphy->rts_threshold; } - s32Error = wilc_hif_set_cfg(vif, &pstrCfgParamVal); - if (s32Error) + ret = wilc_hif_set_cfg(vif, &cfg_param_val); + if (ret) netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n"); - return s32Error; + return ret; } static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev, struct cfg80211_pmksa *pmksa) { u32 i; - s32 s32Error = 0; + s32 ret = 0; u8 flag = 0; struct wilc_vif *vif; struct wilc_priv *priv = wiphy_priv(wiphy); @@ -1295,20 +1295,20 @@ static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev, priv->pmkid_list.numpmkid++; } else { netdev_err(netdev, "Invalid PMKID index\n"); - s32Error = -EINVAL; + ret = -EINVAL; } - if (!s32Error) - s32Error = wilc_set_pmkid_info(vif, &priv->pmkid_list); + if (!ret) + ret = wilc_set_pmkid_info(vif, &priv->pmkid_list); - return s32Error; + return ret; } static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev, struct cfg80211_pmksa *pmksa) { u32 i; - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv = wiphy_priv(wiphy); @@ -1331,10 +1331,10 @@ static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev, } priv->pmkid_list.numpmkid--; } else { - s32Error = -EINVAL; + ret = -EINVAL; } - return s32Error; + return ret; } static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) @@ -1346,7 +1346,7 @@ static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) return 0; } -static void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len) +static void wilc_wfi_cfg_parse_rx_action(u8 *buf, u32 len) { u32 index = 0; u32 i = 0, j = 0; @@ -1382,7 +1382,7 @@ static void WILC_WFI_CfgParseRxAction(u8 *buf, u32 len) } } -static void WILC_WFI_CfgParseTxAction(u8 *buf, u32 len, bool bOperChan, u8 iftype) +static void wilc_wfi_cfg_parse_tx_action(u8 *buf, u32 len, bool oper_ch, u8 iftype) { u32 index = 0; u32 i = 0, j = 0; @@ -1403,7 +1403,7 @@ static void WILC_WFI_CfgParseTxAction(u8 *buf, u32 len, bool bOperChan, u8 iftyp op_channel_attr_index = index; index += buf[index + 1] + 3; } - if (wlan_channel != INVALID_CHANNEL && bOperChan) { + if (wlan_channel != INVALID_CHANNEL && oper_ch) { if (channel_list_attr_index) { for (i = channel_list_attr_index + 3; i < ((channel_list_attr_index + 3) + buf[channel_list_attr_index + 1]); i++) { if (buf[i] == 0x51) { @@ -1425,12 +1425,12 @@ void WILC_WFI_p2p_rx(struct net_device *dev, u8 *buff, u32 size) { struct wilc_priv *priv; u32 header, pkt_offset; - struct host_if_drv *pstrWFIDrv; + struct host_if_drv *wfi_drv; u32 i = 0; s32 s32Freq; priv = wiphy_priv(dev->ieee80211_ptr->wiphy); - pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; + wfi_drv = (struct host_if_drv *)priv->hif_drv; memcpy(&header, (buff - HOST_HDR_OFFSET), HOST_HDR_OFFSET); @@ -1438,20 +1438,20 @@ void WILC_WFI_p2p_rx(struct net_device *dev, u8 *buff, u32 size) if (pkt_offset & IS_MANAGMEMENT_CALLBACK) { if (buff[FRAME_TYPE_ID] == IEEE80211_STYPE_PROBE_RESP) { - cfg80211_mgmt_tx_status(priv->wdev, priv->u64tx_cookie, buff, size, true, GFP_KERNEL); + cfg80211_mgmt_tx_status(priv->wdev, priv->tx_cookie, buff, size, true, GFP_KERNEL); return; } else { if (pkt_offset & IS_MGMT_STATUS_SUCCES) - cfg80211_mgmt_tx_status(priv->wdev, priv->u64tx_cookie, buff, size, true, GFP_KERNEL); + cfg80211_mgmt_tx_status(priv->wdev, priv->tx_cookie, buff, size, true, GFP_KERNEL); else - cfg80211_mgmt_tx_status(priv->wdev, priv->u64tx_cookie, buff, size, false, GFP_KERNEL); + cfg80211_mgmt_tx_status(priv->wdev, priv->tx_cookie, buff, size, false, GFP_KERNEL); return; } } else { s32Freq = ieee80211_channel_to_frequency(curr_channel, NL80211_BAND_2GHZ); if (ieee80211_is_action(buff[FRAME_TYPE_ID])) { - if (priv->bCfgScanning && time_after_eq(jiffies, (unsigned long)pstrWFIDrv->p2p_timeout)) { + if (priv->cfg_scanning && time_after_eq(jiffies, (unsigned long)wfi_drv->p2p_timeout)) { netdev_dbg(dev, "Receiving action wrong ch\n"); return; } @@ -1481,7 +1481,7 @@ void WILC_WFI_p2p_rx(struct net_device *dev, u8 *buff, u32 size) buff[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_REQ || buff[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_RSP)) { for (i = P2P_PUB_ACTION_SUBTYPE + 2; i < size; i++) { if (buff[i] == P2PELEM_ATTR_ID && !(memcmp(p2p_oui, &buff[i + 2], 4))) { - WILC_WFI_CfgParseRxAction(&buff[i + 6], size - (i + 6)); + wilc_wfi_cfg_parse_rx_action(&buff[i + 6], size - (i + 6)); break; } } @@ -1508,7 +1508,7 @@ void WILC_WFI_p2p_rx(struct net_device *dev, u8 *buff, u32 size) } } -static void WILC_WFI_mgmt_tx_complete(void *priv, int status) +static void wilc_wfi_mgmt_tx_complete(void *priv, int status) { struct p2p_mgmt_data *pv_data = priv; @@ -1516,33 +1516,33 @@ static void WILC_WFI_mgmt_tx_complete(void *priv, int status) kfree(pv_data); } -static void WILC_WFI_RemainOnChannelReady(void *pUserVoid) +static void wilc_wfi_remain_on_channel_ready(void *priv_data) { struct wilc_priv *priv; - priv = pUserVoid; + priv = priv_data; - priv->bInP2PlistenState = true; + priv->p2p_listen_state = true; cfg80211_ready_on_channel(priv->wdev, - priv->strRemainOnChanParams.u64ListenCookie, - priv->strRemainOnChanParams.pstrListenChan, - priv->strRemainOnChanParams.u32ListenDuration, + priv->remain_on_ch_params.listen_cookie, + priv->remain_on_ch_params.listen_ch, + priv->remain_on_ch_params.listen_duration, GFP_KERNEL); } -static void WILC_WFI_RemainOnChannelExpired(void *pUserVoid, u32 u32SessionID) +static void wilc_wfi_remain_on_channel_expired(void *data, u32 session_id) { struct wilc_priv *priv; - priv = pUserVoid; + priv = data; - if (u32SessionID == priv->strRemainOnChanParams.u32ListenSessionID) { - priv->bInP2PlistenState = false; + if (session_id == priv->remain_on_ch_params.listen_session_id) { + priv->p2p_listen_state = false; cfg80211_remain_on_channel_expired(priv->wdev, - priv->strRemainOnChanParams.u64ListenCookie, - priv->strRemainOnChanParams.pstrListenChan, + priv->remain_on_ch_params.listen_cookie, + priv->remain_on_ch_params.listen_ch, GFP_KERNEL); } } @@ -1552,7 +1552,7 @@ static int remain_on_channel(struct wiphy *wiphy, struct ieee80211_channel *chan, unsigned int duration, u64 *cookie) { - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv; struct wilc_vif *vif; @@ -1561,21 +1561,21 @@ static int remain_on_channel(struct wiphy *wiphy, if (wdev->iftype == NL80211_IFTYPE_AP) { netdev_dbg(vif->ndev, "Required while in AP mode\n"); - return s32Error; + return ret; } curr_channel = chan->hw_value; - priv->strRemainOnChanParams.pstrListenChan = chan; - priv->strRemainOnChanParams.u64ListenCookie = *cookie; - priv->strRemainOnChanParams.u32ListenDuration = duration; - priv->strRemainOnChanParams.u32ListenSessionID++; + priv->remain_on_ch_params.listen_ch = chan; + priv->remain_on_ch_params.listen_cookie = *cookie; + priv->remain_on_ch_params.listen_duration = duration; + priv->remain_on_ch_params.listen_session_id++; return wilc_remain_on_channel(vif, - priv->strRemainOnChanParams.u32ListenSessionID, + priv->remain_on_ch_params.listen_session_id, duration, chan->hw_value, - WILC_WFI_RemainOnChannelExpired, - WILC_WFI_RemainOnChannelReady, (void *)priv); + wilc_wfi_remain_on_channel_expired, + wilc_wfi_remain_on_channel_ready, (void *)priv); } static int cancel_remain_on_channel(struct wiphy *wiphy, @@ -1589,7 +1589,7 @@ static int cancel_remain_on_channel(struct wiphy *wiphy, vif = netdev_priv(priv->dev); return wilc_listen_state_expired(vif, - priv->strRemainOnChanParams.u32ListenSessionID); + priv->remain_on_ch_params.listen_session_id); } static int mgmt_tx(struct wiphy *wiphy, @@ -1604,17 +1604,17 @@ static int mgmt_tx(struct wiphy *wiphy, const struct ieee80211_mgmt *mgmt; struct p2p_mgmt_data *mgmt_tx; struct wilc_priv *priv; - struct host_if_drv *pstrWFIDrv; + struct host_if_drv *wfi_drv; u32 i; struct wilc_vif *vif; u32 buf_len = len + sizeof(p2p_vendor_spec) + sizeof(p2p_local_random); vif = netdev_priv(wdev->netdev); priv = wiphy_priv(wiphy); - pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; + wfi_drv = (struct host_if_drv *)priv->hif_drv; *cookie = (unsigned long)buf; - priv->u64tx_cookie = *cookie; + priv->tx_cookie = *cookie; mgmt = (const struct ieee80211_mgmt *)buf; if (ieee80211_is_mgmt(mgmt->frame_control)) { @@ -1665,9 +1665,9 @@ static int mgmt_tx(struct wiphy *wiphy, for (i = P2P_PUB_ACTION_SUBTYPE + 2; i < len; i++) { if (buf[i] == P2PELEM_ATTR_ID && !(memcmp(p2p_oui, &buf[i + 2], 4))) { if (buf[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_REQ || buf[P2P_PUB_ACTION_SUBTYPE] == P2P_INV_RSP) - WILC_WFI_CfgParseTxAction(&mgmt_tx->buff[i + 6], len - (i + 6), true, vif->iftype); + wilc_wfi_cfg_parse_tx_action(&mgmt_tx->buff[i + 6], len - (i + 6), true, vif->iftype); else - WILC_WFI_CfgParseTxAction(&mgmt_tx->buff[i + 6], len - (i + 6), false, vif->iftype); + wilc_wfi_cfg_parse_tx_action(&mgmt_tx->buff[i + 6], len - (i + 6), false, vif->iftype); break; } } @@ -1695,12 +1695,12 @@ static int mgmt_tx(struct wiphy *wiphy, } } - pstrWFIDrv->p2p_timeout = (jiffies + msecs_to_jiffies(wait)); + wfi_drv->p2p_timeout = (jiffies + msecs_to_jiffies(wait)); } wilc_wlan_txq_add_mgmt_pkt(wdev->netdev, mgmt_tx, mgmt_tx->buff, mgmt_tx->size, - WILC_WFI_mgmt_tx_complete); + wilc_wfi_mgmt_tx_complete); } return 0; } @@ -1710,16 +1710,16 @@ static int mgmt_tx_cancel_wait(struct wiphy *wiphy, u64 cookie) { struct wilc_priv *priv; - struct host_if_drv *pstrWFIDrv; + struct host_if_drv *wfi_drv; priv = wiphy_priv(wiphy); - pstrWFIDrv = (struct host_if_drv *)priv->hif_drv; - pstrWFIDrv->p2p_timeout = jiffies; + wfi_drv = (struct host_if_drv *)priv->hif_drv; + wfi_drv->p2p_timeout = jiffies; - if (!priv->bInP2PlistenState) { + if (!priv->p2p_listen_state) { cfg80211_remain_on_channel_expired(priv->wdev, - priv->strRemainOnChanParams.u64ListenCookie, - priv->strRemainOnChanParams.pstrListenChan, + priv->remain_on_ch_params.listen_cookie, + priv->remain_on_ch_params.listen_ch, GFP_KERNEL); } @@ -1788,7 +1788,7 @@ static int dump_station(struct wiphy *wiphy, struct net_device *dev, wilc_get_rssi(vif, &sinfo->signal); - memcpy(mac, priv->au8AssociatedBss, ETH_ALEN); + memcpy(mac, priv->associated_bss, ETH_ALEN); return 0; } @@ -1837,7 +1837,7 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, vif->iftype = STATION_MODE; wilc_set_operation_mode(vif, STATION_MODE); - memset(priv->assoc_stainfo.au8Sta_AssociatedBss, 0, MAX_NUM_STA * ETH_ALEN); + memset(priv->assoc_stainfo.sta_associated_bss, 0, MAX_NUM_STA * ETH_ALEN); wilc_enable_ps = true; wilc_set_power_mgmt(vif, 1, 0); @@ -1893,9 +1893,9 @@ static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, static int start_ap(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_ap_settings *settings) { - struct cfg80211_beacon_data *beacon = &(settings->beacon); + struct cfg80211_beacon_data *beacon = &settings->beacon; struct wilc_priv *priv; - s32 s32Error = 0; + s32 ret = 0; struct wilc *wl; struct wilc_vif *vif; @@ -1903,9 +1903,9 @@ static int start_ap(struct wiphy *wiphy, struct net_device *dev, vif = netdev_priv(dev); wl = vif->wilc; - s32Error = set_channel(wiphy, &settings->chandef); + ret = set_channel(wiphy, &settings->chandef); - if (s32Error != 0) + if (ret != 0) netdev_err(dev, "Error in setting channel\n"); wilc_wlan_set_bssid(dev, wl->vif[vif->idx]->src_addr, AP_MODE); @@ -1933,10 +1933,10 @@ static int change_beacon(struct wiphy *wiphy, struct net_device *dev, static int stop_ap(struct wiphy *wiphy, struct net_device *dev) { - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv; struct wilc_vif *vif; - u8 NullBssid[ETH_ALEN] = {0}; + u8 null_bssid[ETH_ALEN] = {0}; if (!wiphy) return -EFAULT; @@ -1944,22 +1944,22 @@ static int stop_ap(struct wiphy *wiphy, struct net_device *dev) priv = wiphy_priv(wiphy); vif = netdev_priv(priv->dev); - wilc_wlan_set_bssid(dev, NullBssid, AP_MODE); + wilc_wlan_set_bssid(dev, null_bssid, AP_MODE); - s32Error = wilc_del_beacon(vif); + ret = wilc_del_beacon(vif); - if (s32Error) + if (ret) netdev_err(dev, "Host delete beacon fail\n"); - return s32Error; + return ret; } static int add_station(struct wiphy *wiphy, struct net_device *dev, const u8 *mac, struct station_parameters *params) { - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv; - struct add_sta_param strStaParams = { {0} }; + struct add_sta_param sta_params = { {0} }; struct wilc_vif *vif; if (!wiphy) @@ -1969,35 +1969,35 @@ static int add_station(struct wiphy *wiphy, struct net_device *dev, vif = netdev_priv(dev); if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) { - memcpy(strStaParams.bssid, mac, ETH_ALEN); - memcpy(priv->assoc_stainfo.au8Sta_AssociatedBss[params->aid], mac, ETH_ALEN); - strStaParams.aid = params->aid; - strStaParams.rates_len = params->supported_rates_len; - strStaParams.rates = params->supported_rates; + memcpy(sta_params.bssid, mac, ETH_ALEN); + memcpy(priv->assoc_stainfo.sta_associated_bss[params->aid], mac, ETH_ALEN); + sta_params.aid = params->aid; + sta_params.rates_len = params->supported_rates_len; + sta_params.rates = params->supported_rates; if (!params->ht_capa) { - strStaParams.ht_supported = false; + sta_params.ht_supported = false; } else { - strStaParams.ht_supported = true; - strStaParams.ht_capa = *params->ht_capa; + sta_params.ht_supported = true; + sta_params.ht_capa = *params->ht_capa; } - strStaParams.flags_mask = params->sta_flags_mask; - strStaParams.flags_set = params->sta_flags_set; + sta_params.flags_mask = params->sta_flags_mask; + sta_params.flags_set = params->sta_flags_set; - s32Error = wilc_add_station(vif, &strStaParams); - if (s32Error) + ret = wilc_add_station(vif, &sta_params); + if (ret) netdev_err(dev, "Host add station fail\n"); } - return s32Error; + return ret; } static int del_station(struct wiphy *wiphy, struct net_device *dev, struct station_del_parameters *params) { const u8 *mac = params->mac; - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv; struct wilc_vif *vif; @@ -2009,23 +2009,23 @@ static int del_station(struct wiphy *wiphy, struct net_device *dev, if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) { if (!mac) - s32Error = wilc_del_allstation(vif, - priv->assoc_stainfo.au8Sta_AssociatedBss); + ret = wilc_del_allstation(vif, + priv->assoc_stainfo.sta_associated_bss); - s32Error = wilc_del_station(vif, mac); + ret = wilc_del_station(vif, mac); - if (s32Error) + if (ret) netdev_err(dev, "Host delete station fail\n"); } - return s32Error; + return ret; } static int change_station(struct wiphy *wiphy, struct net_device *dev, const u8 *mac, struct station_parameters *params) { - s32 s32Error = 0; + s32 ret = 0; struct wilc_priv *priv; - struct add_sta_param strStaParams = { {0} }; + struct add_sta_param sta_params = { {0} }; struct wilc_vif *vif; if (!wiphy) @@ -2035,26 +2035,26 @@ static int change_station(struct wiphy *wiphy, struct net_device *dev, vif = netdev_priv(dev); if (vif->iftype == AP_MODE || vif->iftype == GO_MODE) { - memcpy(strStaParams.bssid, mac, ETH_ALEN); - strStaParams.aid = params->aid; - strStaParams.rates_len = params->supported_rates_len; - strStaParams.rates = params->supported_rates; + memcpy(sta_params.bssid, mac, ETH_ALEN); + sta_params.aid = params->aid; + sta_params.rates_len = params->supported_rates_len; + sta_params.rates = params->supported_rates; if (!params->ht_capa) { - strStaParams.ht_supported = false; + sta_params.ht_supported = false; } else { - strStaParams.ht_supported = true; - strStaParams.ht_capa = *params->ht_capa; + sta_params.ht_supported = true; + sta_params.ht_capa = *params->ht_capa; } - strStaParams.flags_mask = params->sta_flags_mask; - strStaParams.flags_set = params->sta_flags_set; + sta_params.flags_mask = params->sta_flags_mask; + sta_params.flags_set = params->sta_flags_set; - s32Error = wilc_edit_station(vif, &strStaParams); - if (s32Error) + ret = wilc_edit_station(vif, &sta_params); + if (ret) netdev_err(dev, "Host edit station fail\n"); } - return s32Error; + return ret; } static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy, @@ -2198,7 +2198,7 @@ static const struct cfg80211_ops wilc_cfg80211_ops = { }; -static struct wireless_dev *WILC_WFI_CfgAlloc(void) +static struct wireless_dev *wilc_wfi_cfg_alloc(void) { struct wireless_dev *wdev; @@ -2230,9 +2230,9 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de { struct wilc_priv *priv; struct wireless_dev *wdev; - s32 s32Error = 0; + s32 ret = 0; - wdev = WILC_WFI_CfgAlloc(); + wdev = wilc_wfi_cfg_alloc(); if (!wdev) { netdev_err(net, "wiphy new allocate failed\n"); return NULL; @@ -2262,8 +2262,8 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de set_wiphy_dev(wdev->wiphy, dev); - s32Error = wiphy_register(wdev->wiphy); - if (s32Error) + ret = wiphy_register(wdev->wiphy); + if (ret) netdev_err(net, "Cannot register wiphy device\n"); priv->dev = net; @@ -2272,7 +2272,7 @@ struct wireless_dev *wilc_create_wiphy(struct net_device *net, struct device *de int wilc_init_host_int(struct net_device *net) { - int s32Error = 0; + int ret = 0; struct wilc_priv *priv; @@ -2283,43 +2283,43 @@ int wilc_init_host_int(struct net_device *net) } op_ifcs++; - priv->gbAutoRateAdjusted = false; + priv->auto_rate_adjusted = false; - priv->bInP2PlistenState = false; + priv->p2p_listen_state = false; mutex_init(&priv->scan_req_lock); - s32Error = wilc_init(net, &priv->hif_drv); - if (s32Error) + ret = wilc_init(net, &priv->hif_drv); + if (ret) netdev_err(net, "Error while initializing hostinterface\n"); - return s32Error; + return ret; } int wilc_deinit_host_int(struct net_device *net) { - int s32Error = 0; + int ret = 0; struct wilc_vif *vif; struct wilc_priv *priv; priv = wdev_priv(net->ieee80211_ptr); vif = netdev_priv(priv->dev); - priv->gbAutoRateAdjusted = false; + priv->auto_rate_adjusted = false; - priv->bInP2PlistenState = false; + priv->p2p_listen_state = false; op_ifcs--; - s32Error = wilc_deinit(vif); + ret = wilc_deinit(vif); clear_shadow_scan(); if (op_ifcs == 0) del_timer_sync(&wilc_during_ip_timer); - if (s32Error) + if (ret) netdev_err(net, "Error while deinitializing host interface\n"); - return s32Error; + return ret; } void wilc_free_wiphy(struct net_device *net) diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h index e6f4d84971c3..3337fb26c8e2 100644 --- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h +++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h @@ -86,29 +86,28 @@ struct wilc_wfi_wep_key { }; struct sta_info { - u8 au8Sta_AssociatedBss[MAX_NUM_STA][ETH_ALEN]; + u8 sta_associated_bss[MAX_NUM_STA][ETH_ALEN]; }; /*Parameters needed for host interface for remaining on channel*/ -struct wilc_wfi_p2pListenParams { - struct ieee80211_channel *pstrListenChan; - enum nl80211_channel_type tenuChannelType; - u32 u32ListenDuration; - u64 u64ListenCookie; - u32 u32ListenSessionID; +struct wilc_wfi_p2p_listen_params { + struct ieee80211_channel *listen_ch; + u32 listen_duration; + u64 listen_cookie; + u32 listen_session_id; }; struct wilc_priv { struct wireless_dev *wdev; - struct cfg80211_scan_request *pstrScanReq; + struct cfg80211_scan_request *scan_req; - struct wilc_wfi_p2pListenParams strRemainOnChanParams; - u64 u64tx_cookie; + struct wilc_wfi_p2p_listen_params remain_on_ch_params; + u64 tx_cookie; - bool bCfgScanning; - u32 u32RcvdChCount; + bool cfg_scanning; + u32 rcvd_ch_cnt; - u8 au8AssociatedBss[ETH_ALEN]; + u8 associated_bss[ETH_ALEN]; struct sta_info assoc_stainfo; struct net_device_stats stats; u8 monitor_flag; @@ -135,9 +134,9 @@ struct wilc_priv { /* mutexes */ struct mutex scan_req_lock; /* */ - bool gbAutoRateAdjusted; + bool auto_rate_adjusted; - bool bInP2PlistenState; + bool p2p_listen_state; }; diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c index f49dfa82f1b8..acaeafc2c350 100644 --- a/drivers/staging/wilc1000/wilc_wlan.c +++ b/drivers/staging/wilc1000/wilc_wlan.c @@ -1,19 +1,20 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/completion.h> #include "wilc_wlan_if.h" #include "wilc_wlan.h" #include "wilc_wfi_netdevice.h" #include "wilc_wlan_cfg.h" -static CHIP_PS_STATE_T chip_ps_state = CHIP_WAKEDUP; +static enum chip_ps_states chip_ps_state = CHIP_WAKEDUP; -static inline void acquire_bus(struct wilc *wilc, BUS_ACQUIRE_T acquire) +static inline void acquire_bus(struct wilc *wilc, enum bus_acquire acquire) { mutex_lock(&wilc->hif_cs); if (acquire == ACQUIRE_AND_WAKEUP) chip_wakeup(wilc); } -static inline void release_bus(struct wilc *wilc, BUS_RELEASE_T release) +static inline void release_bus(struct wilc *wilc, enum bus_release release) { if (release == RELEASE_ALLOW_SLEEP) chip_allow_sleep(wilc); @@ -692,7 +693,7 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count) i = 0; do { tqe = wilc_wlan_txq_remove_from_head(dev); - if (tqe && (vmm_table[i] != 0)) { + if (tqe && vmm_table[i] != 0) { u32 header, buffer_offset; vmm_table[i] = cpu_to_le32(vmm_table[i]); diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.c b/drivers/staging/wilc1000/wilc_wlan_cfg.c index 19e4f85fdd27..aeb5417f3587 100644 --- a/drivers/staging/wilc1000/wilc_wlan_cfg.c +++ b/drivers/staging/wilc1000/wilc_wlan_cfg.c @@ -235,7 +235,7 @@ static int wilc_wlan_cfg_set_str(u8 *frame, u32 offset, u16 id, u8 *str, u32 siz buf[2] = (u8)size; buf[3] = (u8)(size >> 8); - if ((str) && (size != 0)) + if (str && size != 0) memcpy(&buf[4], str, size); return (size + 4); @@ -256,7 +256,7 @@ static int wilc_wlan_cfg_set_bin(u8 *frame, u32 offset, u16 id, u8 *b, u32 size) buf[2] = (u8)size; buf[3] = (u8)(size >> 8); - if ((b) && (size != 0)) { + if ((b) && size != 0) { memcpy(&buf[4], b, size); for (i = 0; i < size; i++) checksum += buf[i + 4]; @@ -370,7 +370,7 @@ static int wilc_wlan_parse_info_frame(u8 *info, int size) len = info[2]; - if ((len == 1) && (wid == WID_STATUS)) { + if (len == 1 && wid == WID_STATUS) { pd->mac_status = info[3]; type = WILC_CFG_RSP_STATUS; } diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h index c1693cfc076d..e186509ad334 100644 --- a/drivers/staging/wilc1000/wilc_wlan_if.h +++ b/drivers/staging/wilc1000/wilc_wlan_if.h @@ -75,7 +75,7 @@ typedef void (*wilc_tx_complete_func_t)(void *, int); #define MAX_SSID_LEN 33 #define MAX_RATES_SUPPORTED 12 -typedef enum { +enum { SUPP_RATES_IE = 1, EXT_SUPP_RATES_IE = 50, HT_CAPABILITY_IE = 45, @@ -83,15 +83,15 @@ typedef enum { WPA_IE = 221, WMM_IE = 221, P2P_IE = 221, -} BEACON_IE; +}; -typedef enum { +enum bss_types { INFRASTRUCTURE = 0, INDEPENDENT, AP, -} BSSTYPE_T; +}; -typedef enum { +enum { RATE_AUTO = 0, RATE_1MB = 1, RATE_2MB = 2, @@ -105,55 +105,55 @@ typedef enum { RATE_26MB = 36, RATE_48MB = 48, RATE_54MB = 54 -} TX_RATE_T; +}; -typedef enum { +enum { B_ONLY_MODE = 0, /* 1, 2 M, otherwise 5, 11 M */ G_ONLY_MODE, /* 6,12,24 otherwise 9,18,36,48,54 */ G_MIXED_11B_1_MODE, /* 1,2,5.5,11 otherwise all on */ G_MIXED_11B_2_MODE, /* 1,2,5,11,6,12,24 otherwise all on */ -} G_OPERATING_MODE_T; +}; -typedef enum { +enum { G_SHORT_PREAMBLE = 0, /* Short Preamble */ G_LONG_PREAMBLE = 1, /* Long Preamble */ G_AUTO_PREAMBLE = 2, /* Auto Preamble Selection */ -} G_PREAMBLE_T; +}; #define MAC_CONNECTED 1 #define MAC_DISCONNECTED 0 #define SCAN_DONE TRUE -typedef enum { +enum { PASSIVE_SCAN = 0, ACTIVE_SCAN = 1, -} SCANTYPE_T; +}; -typedef enum { +enum { NO_POWERSAVE = 0, MIN_FAST_PS = 1, MAX_FAST_PS = 2, MIN_PSPOLL_PS = 3, MAX_PSPOLL_PS = 4 -} USER_PS_MODE_T; +}; -typedef enum { +enum chip_ps_states { CHIP_WAKEDUP = 0, CHIP_SLEEPING_AUTO = 1, CHIP_SLEEPING_MANUAL = 2 -} CHIP_PS_STATE_T; +}; -typedef enum { +enum bus_acquire { ACQUIRE_ONLY = 0, ACQUIRE_AND_WAKEUP = 1, -} BUS_ACQUIRE_T; +}; -typedef enum { +enum bus_release { RELEASE_ONLY = 0, RELEASE_ALLOW_SLEEP = 1, -} BUS_RELEASE_T; +}; -typedef enum { +enum { NO_SECURITY = 0, WEP_40 = 0x3, WEP_104 = 0x7, @@ -163,7 +163,7 @@ typedef enum { WPA2_AES = 0x31, WPA2_TKIP = 0x51, WPA2_AES_TKIP = 0x71, /* Aes or Tkip */ -} SECURITY_T; +}; enum AUTHTYPE { OPEN_SYSTEM = 1, @@ -178,88 +178,88 @@ enum SITESURVEY { SITE_SURVEY_OFF = 2 }; -typedef enum { +enum { NORMAL_ACK = 0, NO_ACK, -} ACK_POLICY_T; +}; -typedef enum { +enum { DONT_RESET = 0, DO_RESET = 1, NO_REQUEST = 2, -} RESET_REQ_T; +}; -typedef enum { +enum { REKEY_DISABLE = 1, REKEY_TIME_BASE, REKEY_PKT_BASE, REKEY_TIME_PKT_BASE -} RSNA_REKEY_POLICY_T; +}; -typedef enum { +enum { FILTER_NO = 0x00, FILTER_AP_ONLY = 0x01, FILTER_STA_ONLY = 0x02 -} SCAN_CLASS_FITLER_T; +}; -typedef enum { +enum { PRI_HIGH_RSSI = 0x00, PRI_LOW_RSSI = 0x04, PRI_DETECT = 0x08 -} SCAN_PRI_T; +}; -typedef enum { +enum { CH_FILTER_OFF = 0x00, CH_FILTER_ON = 0x10 -} CH_FILTER_T; +}; -typedef enum { +enum { AUTO_PROT = 0, /* Auto */ NO_PROT, /* Do not use any protection */ ERP_PROT, /* Protect all ERP frame exchanges */ HT_PROT, /* Protect all HT frame exchanges */ GF_PROT, /* Protect all GF frame exchanges */ -} N_PROTECTION_MODE_T; +}; -typedef enum { +enum { G_SELF_CTS_PROT, G_RTS_CTS_PROT, -} G_PROTECTION_MODE_T; +}; -typedef enum { +enum { HT_MIXED_MODE = 1, HT_ONLY_20MHZ_MODE, HT_ONLY_20_40MHZ_MODE, -} N_OPERATING_MODE_T; +}; -typedef enum { +enum { NO_DETECT = 0, DETECT_ONLY = 1, DETECT_PROTECT = 2, DETECT_PROTECT_REPORT = 3, -} N_OBSS_DETECTION_T; +}; -typedef enum { +enum { RTS_CTS_NONHT_PROT = 0, /* RTS-CTS at non-HT rate */ FIRST_FRAME_NONHT_PROT, /* First frame at non-HT rate */ LSIG_TXOP_PROT, /* LSIG TXOP Protection */ FIRST_FRAME_MIXED_PROT, /* First frame at Mixed format */ -} N_PROTECTION_TYPE_T; +}; -typedef enum { +enum { STATIC_MODE = 1, DYNAMIC_MODE = 2, MIMO_MODE = 3, /* power save disable */ -} N_SMPS_MODE_T; +}; -typedef enum { +enum { DISABLE_SELF_CTS, ENABLE_SELF_CTS, DISABLE_TX_ABORT, ENABLE_TX_ABORT, HW_TRIGGER_ABORT, SW_TRIGGER_ABORT, -} TX_ABORT_OPTION_T; +}; enum wid_type { WID_CHAR = 0, @@ -281,7 +281,7 @@ struct wid { s8 *val; }; -typedef enum { +enum { WID_NIL = 0xffff, /* @@ -889,7 +889,7 @@ typedef enum { /* Miscellaneous WIDs */ WID_ALL = 0x7FFE, WID_MAX = 0xFFFF -} WID_T; +}; struct wilc; int wilc_wlan_init(struct net_device *dev); diff --git a/drivers/staging/wlan-ng/hfa384x.h b/drivers/staging/wlan-ng/hfa384x.h index f5a3a1ce21ce..85c3af00abd2 100644 --- a/drivers/staging/wlan-ng/hfa384x.h +++ b/drivers/staging/wlan-ng/hfa384x.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* hfa384x.h * * Defines the constants and data structures for the hfa384x diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c index 197f5a914e8f..555711bc12f0 100644 --- a/drivers/staging/wlan-ng/hfa384x_usb.c +++ b/drivers/staging/wlan-ng/hfa384x_usb.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/prism2/driver/hfa384x_usb.c * * Functions that talk to the USB variantof the Intersil hfa384x MAC @@ -2457,7 +2458,8 @@ int hfa384x_drvr_start(struct hfa384x *hw) * ok */ result = - usb_get_std_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status); + usb_get_std_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, + &status); if (result < 0) { netdev_err(hw->wlandev->netdev, "Cannot get bulk in endpoint status.\n"); goto done; @@ -2466,7 +2468,8 @@ int hfa384x_drvr_start(struct hfa384x *hw) netdev_err(hw->wlandev->netdev, "Failed to reset bulk in endpoint.\n"); result = - usb_get_std_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status); + usb_get_std_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, + &status); if (result < 0) { netdev_err(hw->wlandev->netdev, "Cannot get bulk out endpoint status.\n"); goto done; diff --git a/drivers/staging/wlan-ng/p80211conv.c b/drivers/staging/wlan-ng/p80211conv.c index c1b6d426bcad..855b424f6423 100644 --- a/drivers/staging/wlan-ng/p80211conv.c +++ b/drivers/staging/wlan-ng/p80211conv.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/p80211/p80211conv.c * * Ether/802.11 conversions and packet buffer routines diff --git a/drivers/staging/wlan-ng/p80211conv.h b/drivers/staging/wlan-ng/p80211conv.h index 66332b1fb6d5..28459dcea4b1 100644 --- a/drivers/staging/wlan-ng/p80211conv.h +++ b/drivers/staging/wlan-ng/p80211conv.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211conv.h * * Ether/802.11 conversions and packet buffer routines diff --git a/drivers/staging/wlan-ng/p80211hdr.h b/drivers/staging/wlan-ng/p80211hdr.h index 2c44c613a586..133d70c08ecf 100644 --- a/drivers/staging/wlan-ng/p80211hdr.h +++ b/drivers/staging/wlan-ng/p80211hdr.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211hdr.h * * Macros, types, and functions for handling 802.11 MAC headers diff --git a/drivers/staging/wlan-ng/p80211ioctl.h b/drivers/staging/wlan-ng/p80211ioctl.h index ab6067e65050..d8cde1d8870b 100644 --- a/drivers/staging/wlan-ng/p80211ioctl.h +++ b/drivers/staging/wlan-ng/p80211ioctl.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211ioctl.h * * Declares constants and types for the p80211 ioctls diff --git a/drivers/staging/wlan-ng/p80211metadef.h b/drivers/staging/wlan-ng/p80211metadef.h index ea3d9ce222b9..4ac2f08a520a 100644 --- a/drivers/staging/wlan-ng/p80211metadef.h +++ b/drivers/staging/wlan-ng/p80211metadef.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* This file is GENERATED AUTOMATICALLY. DO NOT EDIT OR MODIFY. * -------------------------------------------------------------------- * diff --git a/drivers/staging/wlan-ng/p80211metastruct.h b/drivers/staging/wlan-ng/p80211metastruct.h index 850d897fc163..15b7c08e210d 100644 --- a/drivers/staging/wlan-ng/p80211metastruct.h +++ b/drivers/staging/wlan-ng/p80211metastruct.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* This file is GENERATED AUTOMATICALLY. DO NOT EDIT OR MODIFY. * -------------------------------------------------------------------- * diff --git a/drivers/staging/wlan-ng/p80211mgmt.h b/drivers/staging/wlan-ng/p80211mgmt.h index 653950fd9843..3c12929858cb 100644 --- a/drivers/staging/wlan-ng/p80211mgmt.h +++ b/drivers/staging/wlan-ng/p80211mgmt.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211mgmt.h * * Macros, types, and functions to handle 802.11 mgmt frames diff --git a/drivers/staging/wlan-ng/p80211msg.h b/drivers/staging/wlan-ng/p80211msg.h index 40c5cf5997c7..ae119ecd74b0 100644 --- a/drivers/staging/wlan-ng/p80211msg.h +++ b/drivers/staging/wlan-ng/p80211msg.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211msg.h * * Macros, constants, types, and funcs for req and ind messages diff --git a/drivers/staging/wlan-ng/p80211netdev.c b/drivers/staging/wlan-ng/p80211netdev.c index 0f503652740f..ec9cc00ee241 100644 --- a/drivers/staging/wlan-ng/p80211netdev.c +++ b/drivers/staging/wlan-ng/p80211netdev.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/p80211/p80211knetdev.c * * Linux Kernel net device interface @@ -640,7 +641,8 @@ static int p80211knetdev_set_mac_address(struct net_device *dev, void *addr) dot11req.msgcode = DIDmsg_dot11req_mibset; dot11req.msglen = sizeof(dot11req); memcpy(dot11req.devname, - ((struct wlandevice *)dev->ml_priv)->name, WLAN_DEVNAMELEN_MAX - 1); + ((struct wlandevice *)dev->ml_priv)->name, + WLAN_DEVNAMELEN_MAX - 1); /* Set up the mibattribute argument */ mibattr->did = DIDmsg_dot11req_mibset_mibattribute; diff --git a/drivers/staging/wlan-ng/p80211netdev.h b/drivers/staging/wlan-ng/p80211netdev.h index 8e0d08298c8b..cebbe746a52f 100644 --- a/drivers/staging/wlan-ng/p80211netdev.h +++ b/drivers/staging/wlan-ng/p80211netdev.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211netdev.h * * WLAN net device structure and functions diff --git a/drivers/staging/wlan-ng/p80211req.c b/drivers/staging/wlan-ng/p80211req.c index afe847722cf7..c36d01469afc 100644 --- a/drivers/staging/wlan-ng/p80211req.c +++ b/drivers/staging/wlan-ng/p80211req.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/p80211/p80211req.c * * Request/Indication/MacMgmt interface handling functions diff --git a/drivers/staging/wlan-ng/p80211req.h b/drivers/staging/wlan-ng/p80211req.h index 6c72f59993e0..20be2c3af4c1 100644 --- a/drivers/staging/wlan-ng/p80211req.h +++ b/drivers/staging/wlan-ng/p80211req.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* p80211req.h * * Request handling functions diff --git a/drivers/staging/wlan-ng/p80211types.h b/drivers/staging/wlan-ng/p80211types.h index 263ef2ddb197..94420562c418 100644 --- a/drivers/staging/wlan-ng/p80211types.h +++ b/drivers/staging/wlan-ng/p80211types.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* * p80211types.h * diff --git a/drivers/staging/wlan-ng/p80211wep.c b/drivers/staging/wlan-ng/p80211wep.c index 6492ffe59085..8bd92bba0ac1 100644 --- a/drivers/staging/wlan-ng/p80211wep.c +++ b/drivers/staging/wlan-ng/p80211wep.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/p80211/p80211wep.c * * WEP encode/decode for P80211. diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c index 344bec8cc31b..5860d0d65841 100644 --- a/drivers/staging/wlan-ng/prism2fw.c +++ b/drivers/staging/wlan-ng/prism2fw.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* from src/prism2/download/prism2dl.c * * utility for downloading prism2 images moved into kernelspace diff --git a/drivers/staging/wlan-ng/prism2mgmt.c b/drivers/staging/wlan-ng/prism2mgmt.c index 72070593394a..78934e435fcf 100644 --- a/drivers/staging/wlan-ng/prism2mgmt.c +++ b/drivers/staging/wlan-ng/prism2mgmt.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/prism2/driver/prism2mgmt.c * * Management request handler functions. diff --git a/drivers/staging/wlan-ng/prism2mgmt.h b/drivers/staging/wlan-ng/prism2mgmt.h index c062418f1202..564c3f4a3e03 100644 --- a/drivers/staging/wlan-ng/prism2mgmt.h +++ b/drivers/staging/wlan-ng/prism2mgmt.h @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* prism2mgmt.h * * Declares the mgmt command handler functions diff --git a/drivers/staging/wlan-ng/prism2mib.c b/drivers/staging/wlan-ng/prism2mib.c index e41207d97309..edad299ff5ad 100644 --- a/drivers/staging/wlan-ng/prism2mib.c +++ b/drivers/staging/wlan-ng/prism2mib.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/prism2/driver/prism2mib.c * * Management request for mibset/mibget diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c index 99316b9a4e49..fed0b8ceca6f 100644 --- a/drivers/staging/wlan-ng/prism2sta.c +++ b/drivers/staging/wlan-ng/prism2sta.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1) /* src/prism2/driver/prism2sta.c * * Implements the station functionality for prism2 diff --git a/drivers/staging/xgifb/XGI_main.h b/drivers/staging/xgifb/XGI_main.h index a3af1cbbf8ee..e19a8291cb2a 100644 --- a/drivers/staging/xgifb/XGI_main.h +++ b/drivers/staging/xgifb/XGI_main.h @@ -18,19 +18,6 @@ static const struct pci_device_id xgifb_pci_table[] = { MODULE_DEVICE_TABLE(pci, xgifb_pci_table); -/* To be included in fb.h */ -#define XGISR (xgifb_info->dev_info.P3c4) -#define XGICR (xgifb_info->dev_info.P3d4) -#define XGIDACA (xgifb_info->dev_info.P3c8) -#define XGIDACD (xgifb_info->dev_info.P3c9) -#define XGIPART1 (xgifb_info->dev_info.Part1Port) -#define XGIPART2 (xgifb_info->dev_info.Part2Port) -#define XGIPART3 (xgifb_info->dev_info.Part3Port) -#define XGIPART4 (xgifb_info->dev_info.Part4Port) -#define XGIPART5 (xgifb_info->dev_info.Part5Port) -#define XGIDAC2A XGIPART5 -#define XGIDAC2D (XGIPART5 + 1) - #define IND_XGI_SCRATCH_REG_CR30 0x30 /* CRs */ #define IND_XGI_SCRATCH_REG_CR31 0x31 #define IND_XGI_SCRATCH_REG_CR32 0x32 diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c index b813f1d460ce..10107de0119a 100644 --- a/drivers/staging/xgifb/XGI_main_26.c +++ b/drivers/staging/xgifb/XGI_main_26.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * XG20, XG21, XG40, XG42 frame buffer device * for Linux kernels 2.5.x, 2.6.x @@ -31,18 +32,19 @@ static unsigned int refresh_rate; #ifdef DEBUG static void dumpVGAReg(struct xgifb_video_info *xgifb_info) { + struct vb_device_info *vb = &xgifb_info->dev_info; u8 i, reg; - xgifb_reg_set(XGISR, 0x05, 0x86); + xgifb_reg_set(vb->P3c4, 0x05, 0x86); for (i = 0; i < 0x4f; i++) { - reg = xgifb_reg_get(XGISR, i); + reg = xgifb_reg_get(vb->P3c4, i); pr_debug("o 3c4 %x\n", i); pr_debug("i 3c5 => %x\n", reg); } for (i = 0; i < 0xF0; i++) { - reg = xgifb_reg_get(XGICR, i); + reg = xgifb_reg_get(vb->P3d4, i); pr_debug("o 3d4 %x\n", i); pr_debug("i 3d5 => %x\n", reg); } @@ -644,9 +646,10 @@ static void XGIfb_bpp_to_var(struct xgifb_video_info *xgifb_info, static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info) { + struct vb_device_info *vb = &xgifb_info->dev_info; u8 cr30 = 0, cr31 = 0; - cr31 = xgifb_reg_get(XGICR, 0x31); + cr31 = xgifb_reg_get(vb->P3d4, 0x31); cr31 &= ~0x60; switch (xgifb_info->display2) { @@ -683,14 +686,15 @@ static void XGIfb_pre_setmode(struct xgifb_video_info *xgifb_info) cr31 |= (SIS_DRIVER_MODE | SIS_VB_OUTPUT_DISABLE); } - xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR30, cr30); - xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR31, cr31); - xgifb_reg_set(XGICR, IND_XGI_SCRATCH_REG_CR33, + xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR30, cr30); + xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR31, cr31); + xgifb_reg_set(vb->P3d4, IND_XGI_SCRATCH_REG_CR33, (xgifb_info->rate_idx & 0x0F)); } static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info) { + struct vb_device_info *vb = &xgifb_info->dev_info; u8 reg; unsigned char doit = 1; @@ -713,7 +717,7 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info) /* We can't switch off CRT1 if bridge is in slave mode */ if (xgifb_info->hasVB != HASVB_NONE) { - reg = xgifb_reg_get(XGIPART1, 0x00); + reg = xgifb_reg_get(vb->Part1Port, 0x00); if ((reg & 0x50) == 0x10) doit = 0; @@ -722,18 +726,18 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info) XGIfb_crt1off = 0; } - reg = xgifb_reg_get(XGICR, 0x17); + reg = xgifb_reg_get(vb->P3d4, 0x17); if ((XGIfb_crt1off) && (doit)) reg &= ~0x80; else reg |= 0x80; - xgifb_reg_set(XGICR, 0x17, reg); + xgifb_reg_set(vb->P3d4, 0x17, reg); - xgifb_reg_and(XGISR, IND_SIS_RAMDAC_CONTROL, ~0x04); + xgifb_reg_and(vb->P3c4, IND_SIS_RAMDAC_CONTROL, ~0x04); if (xgifb_info->display2 == XGIFB_DISP_TV && xgifb_info->hasVB == HASVB_301) { - reg = xgifb_reg_get(XGIPART4, 0x01); + reg = xgifb_reg_get(vb->Part4Port, 0x01); if (reg < 0xB0) { /* Set filter for XGI301 */ int filter_tb; @@ -760,60 +764,58 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info) filter = -1; break; } - xgifb_reg_or(XGIPART1, - SIS_CRT2_WENABLE_315, - 0x01); + xgifb_reg_or(vb->Part1Port, SIS_CRT2_WENABLE_315, 0x01); if (xgifb_info->TV_type == TVMODE_NTSC) { - xgifb_reg_and(XGIPART2, 0x3a, 0x1f); + xgifb_reg_and(vb->Part2Port, 0x3a, 0x1f); if (xgifb_info->TV_plug == TVPLUG_SVIDEO) { - xgifb_reg_and(XGIPART2, 0x30, 0xdf); + xgifb_reg_and(vb->Part2Port, 0x30, 0xdf); } else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE) { - xgifb_reg_or(XGIPART2, 0x30, 0x20); + xgifb_reg_or(vb->Part2Port, 0x30, 0x20); switch (xgifb_info->video_width) { case 640: - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x35, 0xEB); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x36, 0x04); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x37, 0x25); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x38, 0x18); break; case 720: - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x35, 0xEE); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x36, 0x0C); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x37, 0x22); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x38, 0x08); break; case 800: - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x35, 0xEB); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x36, 0x15); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x37, 0x25); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x38, 0xF6); break; @@ -821,55 +823,55 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info) } } else if (xgifb_info->TV_type == TVMODE_PAL) { - xgifb_reg_and(XGIPART2, 0x3A, 0x1F); + xgifb_reg_and(vb->Part2Port, 0x3A, 0x1F); if (xgifb_info->TV_plug == TVPLUG_SVIDEO) { - xgifb_reg_and(XGIPART2, 0x30, 0xDF); + xgifb_reg_and(vb->Part2Port, 0x30, 0xDF); } else if (xgifb_info->TV_plug == TVPLUG_COMPOSITE) { - xgifb_reg_or(XGIPART2, 0x30, 0x20); + xgifb_reg_or(vb->Part2Port, 0x30, 0x20); switch (xgifb_info->video_width) { case 640: - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x35, 0xF1); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x36, 0xF7); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x37, 0x1F); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x38, 0x32); break; case 720: - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x35, 0xF3); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x36, 0x00); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x37, 0x1D); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x38, 0x20); break; case 800: - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x35, 0xFC); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x36, 0xFB); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x37, 0x14); - xgifb_reg_set(XGIPART2, + xgifb_reg_set(vb->Part2Port, 0x38, 0x2A); break; @@ -882,10 +884,10 @@ static void XGIfb_post_setmode(struct xgifb_video_info *xgifb_info) pr_debug("FilterTable[%d]-%d: %*ph\n", filter_tb, filter, 4, f); - xgifb_reg_set(XGIPART2, 0x35, f[0]); - xgifb_reg_set(XGIPART2, 0x36, f[1]); - xgifb_reg_set(XGIPART2, 0x37, f[2]); - xgifb_reg_set(XGIPART2, 0x38, f[3]); + xgifb_reg_set(vb->Part2Port, 0x35, f[0]); + xgifb_reg_set(vb->Part2Port, 0x36, f[1]); + xgifb_reg_set(vb->Part2Port, 0x37, f[2]); + xgifb_reg_set(vb->Part2Port, 0x38, f[3]); } } } @@ -895,6 +897,7 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive, struct fb_info *info) { struct xgifb_video_info *xgifb_info = info->par; + struct vb_device_info *vb = &xgifb_info->dev_info; struct xgi_hw_device_info *hw_info = &xgifb_info->hw_info; unsigned int htotal = var->left_margin + var->xres + var->right_margin + var->hsync_len; @@ -981,11 +984,10 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive, info->fix.line_length = (info->var.xres_virtual * info->var.bits_per_pixel) >> 6; - xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD); + xgifb_reg_set(vb->P3c4, IND_SIS_PASSWORD, SIS_PASSWORD); - xgifb_reg_set(XGICR, 0x13, (info->fix.line_length & 0x00ff)); - xgifb_reg_set(XGISR, - 0x0E, + xgifb_reg_set(vb->P3d4, 0x13, (info->fix.line_length & 0x00ff)); + xgifb_reg_set(vb->P3c4, 0x0E, (info->fix.line_length & 0xff00) >> 8); XGIfb_post_setmode(xgifb_info); @@ -1013,16 +1015,16 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive, xgifb_info->XGI310_AccelDepth = 0x00000000; xgifb_info->video_cmap_len = 256; #if defined(__BIG_ENDIAN) - cr_data = xgifb_reg_get(XGICR, 0x4D); - xgifb_reg_set(XGICR, 0x4D, (cr_data & 0xE0)); + cr_data = xgifb_reg_get(vb->P3d4, 0x4D); + xgifb_reg_set(vb->P3d4, 0x4D, (cr_data & 0xE0)); #endif break; case 16: xgifb_info->DstColor = 0x8000; xgifb_info->XGI310_AccelDepth = 0x00010000; #if defined(__BIG_ENDIAN) - cr_data = xgifb_reg_get(XGICR, 0x4D); - xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x0B)); + cr_data = xgifb_reg_get(vb->P3d4, 0x4D); + xgifb_reg_set(vb->P3d4, 0x4D, ((cr_data & 0xE0) | 0x0B)); #endif xgifb_info->video_cmap_len = 16; break; @@ -1031,8 +1033,8 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive, xgifb_info->XGI310_AccelDepth = 0x00020000; xgifb_info->video_cmap_len = 16; #if defined(__BIG_ENDIAN) - cr_data = xgifb_reg_get(XGICR, 0x4D); - xgifb_reg_set(XGICR, 0x4D, ((cr_data & 0xE0) | 0x15)); + cr_data = xgifb_reg_get(vb->P3d4, 0x4D); + xgifb_reg_set(vb->P3d4, 0x4D, ((cr_data & 0xE0) | 0x15)); #endif break; default: @@ -1051,6 +1053,7 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive, static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info) { struct xgifb_video_info *xgifb_info = info->par; + struct vb_device_info *vb = &xgifb_info->dev_info; unsigned int base; base = var->yoffset * info->var.xres_virtual + var->xoffset; @@ -1068,22 +1071,20 @@ static int XGIfb_pan_var(struct fb_var_screeninfo *var, struct fb_info *info) break; } - xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD); + xgifb_reg_set(vb->P3c4, IND_SIS_PASSWORD, SIS_PASSWORD); - xgifb_reg_set(XGICR, 0x0D, base & 0xFF); - xgifb_reg_set(XGICR, 0x0C, (base >> 8) & 0xFF); - xgifb_reg_set(XGISR, 0x0D, (base >> 16) & 0xFF); - xgifb_reg_set(XGISR, 0x37, (base >> 24) & 0x03); - xgifb_reg_and_or(XGISR, 0x37, 0xDF, (base >> 21) & 0x04); + xgifb_reg_set(vb->P3d4, 0x0D, base & 0xFF); + xgifb_reg_set(vb->P3d4, 0x0C, (base >> 8) & 0xFF); + xgifb_reg_set(vb->P3c4, 0x0D, (base >> 16) & 0xFF); + xgifb_reg_set(vb->P3c4, 0x37, (base >> 24) & 0x03); + xgifb_reg_and_or(vb->P3c4, 0x37, 0xDF, (base >> 21) & 0x04); if (xgifb_info->display2 != XGIFB_DISP_NONE) { - xgifb_reg_or(XGIPART1, SIS_CRT2_WENABLE_315, 0x01); - xgifb_reg_set(XGIPART1, 0x06, (base & 0xFF)); - xgifb_reg_set(XGIPART1, 0x05, ((base >> 8) & 0xFF)); - xgifb_reg_set(XGIPART1, 0x04, ((base >> 16) & 0xFF)); - xgifb_reg_and_or(XGIPART1, - 0x02, - 0x7F, + xgifb_reg_or(vb->Part1Port, SIS_CRT2_WENABLE_315, 0x01); + xgifb_reg_set(vb->Part1Port, 0x06, (base & 0xFF)); + xgifb_reg_set(vb->Part1Port, 0x05, ((base >> 8) & 0xFF)); + xgifb_reg_set(vb->Part1Port, 0x04, ((base >> 16) & 0xFF)); + xgifb_reg_and_or(vb->Part1Port, 0x02, 0x7F, ((base >> 24) & 0x01) << 7); } return 0; @@ -1110,21 +1111,22 @@ static int XGIfb_setcolreg(unsigned int regno, unsigned int red, unsigned int transp, struct fb_info *info) { struct xgifb_video_info *xgifb_info = info->par; + struct vb_device_info *vb = &xgifb_info->dev_info; if (regno >= XGIfb_get_cmap_len(&info->var)) return 1; switch (info->var.bits_per_pixel) { case 8: - outb(regno, XGIDACA); - outb((red >> 10), XGIDACD); - outb((green >> 10), XGIDACD); - outb((blue >> 10), XGIDACD); + outb(regno, vb->P3c8); + outb((red >> 10), vb->P3c9); + outb((green >> 10), vb->P3c9); + outb((blue >> 10), vb->P3c9); if (xgifb_info->display2 != XGIFB_DISP_NONE) { - outb(regno, XGIDAC2A); - outb((red >> 8), XGIDAC2D); - outb((green >> 8), XGIDAC2D); - outb((blue >> 8), XGIDAC2D); + outb(regno, vb->Part5Port); + outb((red >> 8), (vb->Part5Port + 1)); + outb((green >> 8), (vb->Part5Port + 1)); + outb((blue >> 8), (vb->Part5Port + 1)); } break; case 16: @@ -1344,18 +1346,19 @@ static int XGIfb_pan_display(struct fb_var_screeninfo *var, static int XGIfb_blank(int blank, struct fb_info *info) { struct xgifb_video_info *xgifb_info = info->par; + struct vb_device_info *vb = &xgifb_info->dev_info; u8 reg; - reg = xgifb_reg_get(XGICR, 0x17); + reg = xgifb_reg_get(vb->P3d4, 0x17); if (blank > 0) reg &= 0x7f; else reg |= 0x80; - xgifb_reg_set(XGICR, 0x17, reg); - xgifb_reg_set(XGISR, 0x00, 0x01); /* Synchronous Reset */ - xgifb_reg_set(XGISR, 0x00, 0x03); /* End Reset */ + xgifb_reg_set(vb->P3d4, 0x17, reg); + xgifb_reg_set(vb->P3c4, 0x00, 0x01); /* Synchronous Reset */ + xgifb_reg_set(vb->P3c4, 0x00, 0x03); /* End Reset */ return 0; } @@ -1379,14 +1382,15 @@ static struct fb_ops XGIfb_ops = { static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info) { + struct vb_device_info *vb = &xgifb_info->dev_info; u8 ChannelNum, tmp; u8 reg = 0; /* xorg driver sets 32MB * 1 channel */ if (xgifb_info->chip == XG27) - xgifb_reg_set(XGISR, IND_SIS_DRAM_SIZE, 0x51); + xgifb_reg_set(vb->P3c4, IND_SIS_DRAM_SIZE, 0x51); - reg = xgifb_reg_get(XGISR, IND_SIS_DRAM_SIZE); + reg = xgifb_reg_get(vb->P3c4, IND_SIS_DRAM_SIZE); if (!reg) return -1; @@ -1457,12 +1461,13 @@ static int XGIfb_get_dram_size(struct xgifb_video_info *xgifb_info) static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info) { + struct vb_device_info *vb = &xgifb_info->dev_info; u8 cr32, temp = 0; xgifb_info->TV_plug = 0; xgifb_info->TV_type = 0; - cr32 = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR32); + cr32 = xgifb_reg_get(vb->P3d4, IND_XGI_SCRATCH_REG_CR32); if ((cr32 & SIS_CRT1) && !XGIfb_crt1off) { XGIfb_crt1off = 0; @@ -1499,7 +1504,7 @@ static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info) } if (xgifb_info->TV_type == 0) { - temp = xgifb_reg_get(XGICR, 0x38); + temp = xgifb_reg_get(vb->P3d4, 0x38); if (temp & 0x10) xgifb_info->TV_type = TVMODE_PAL; else @@ -1519,7 +1524,7 @@ static bool XGIfb_has_VB(struct xgifb_video_info *xgifb_info) { u8 vb_chipid; - vb_chipid = xgifb_reg_get(XGIPART4, 0x00); + vb_chipid = xgifb_reg_get(xgifb_info->dev_info.Part4Port, 0x00); switch (vb_chipid) { case 0x01: xgifb_info->hasVB = HASVB_301; @@ -1539,7 +1544,8 @@ static void XGIfb_get_VB_type(struct xgifb_video_info *xgifb_info) u8 reg; if (!XGIfb_has_VB(xgifb_info)) { - reg = xgifb_reg_get(XGICR, IND_XGI_SCRATCH_REG_CR37); + reg = xgifb_reg_get(xgifb_info->dev_info.P3d4, + IND_XGI_SCRATCH_REG_CR37); switch ((reg & SIS_EXTERNAL_CHIP_MASK) >> 1) { case SIS_EXTERNAL_CHIP_LVDS: xgifb_info->hasVB = HASVB_LVDS; @@ -1617,6 +1623,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) int ret; struct fb_info *fb_info; struct xgifb_video_info *xgifb_info; + struct vb_device_info *vb; struct xgi_hw_device_info *hw_info; unsigned long video_size_max; @@ -1625,6 +1632,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return -ENOMEM; xgifb_info = fb_info->par; + vb = &xgifb_info->dev_info; hw_info = &xgifb_info->hw_info; xgifb_info->fb_info = fb_info; xgifb_info->chip_id = pdev->device; @@ -1658,10 +1666,11 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) xgifb_info->display2_force = true; } - XGIRegInit(&xgifb_info->dev_info, xgifb_info->vga_base); + XGIRegInit(vb, xgifb_info->vga_base); - xgifb_reg_set(XGISR, IND_SIS_PASSWORD, SIS_PASSWORD); - reg1 = xgifb_reg_get(XGISR, IND_SIS_PASSWORD); + xgifb_reg_set(vb->P3c4, + IND_SIS_PASSWORD, SIS_PASSWORD); + reg1 = xgifb_reg_get(vb->P3c4, IND_SIS_PASSWORD); if (reg1 != 0xa1) { /* I/O error */ dev_err(&pdev->dev, "I/O error\n"); @@ -1671,8 +1680,10 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) switch (xgifb_info->chip_id) { case PCI_DEVICE_ID_XGI_20: - xgifb_reg_or(XGICR, Index_CR_GPIO_Reg3, GPIOG_EN); - CR48 = xgifb_reg_get(XGICR, Index_CR_GPIO_Reg1); + xgifb_reg_or(vb->P3d4, + Index_CR_GPIO_Reg3, GPIOG_EN); + CR48 = xgifb_reg_get(vb->P3d4, + Index_CR_GPIO_Reg1); if (CR48 & GPIOG_READ) xgifb_info->chip = XG21; else @@ -1703,11 +1714,12 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } /* Enable PCI_LINEAR_ADDRESSING and MMIO_ENABLE */ - xgifb_reg_or(XGISR, + xgifb_reg_or(vb->P3c4, IND_SIS_PCI_ADDRESS_SET, (SIS_PCI_ADDR_ENABLE | SIS_MEM_MAP_IO_ENABLE)); /* Enable 2D accelerator engine */ - xgifb_reg_or(XGISR, IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D); + xgifb_reg_or(vb->P3c4, + IND_SIS_MODULE_ENABLE, SIS_ENABLE_2D); hw_info->ulVideoMemorySize = xgifb_info->video_size; @@ -1760,7 +1772,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) (xgifb_info->chip == XG27)) { xgifb_info->hasVB = HASVB_NONE; } else if (xgifb_info->chip == XG21) { - CR38 = xgifb_reg_get(XGICR, 0x38); + CR38 = xgifb_reg_get(vb->P3d4, 0x38); if ((CR38 & 0xE0) == 0xC0) xgifb_info->display2 = XGIFB_DISP_LCD; else if ((CR38 & 0xE0) == 0x60) @@ -1777,7 +1789,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) switch (xgifb_info->hasVB) { case HASVB_301: - reg = xgifb_reg_get(XGIPART4, 0x01); + reg = xgifb_reg_get(vb->Part4Port, 0x01); if (reg >= 0xE0) { hw_info->ujVBChipID = VB_CHIP_302LV; dev_info(&pdev->dev, @@ -1794,7 +1806,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } break; case HASVB_302: - reg = xgifb_reg_get(XGIPART4, 0x01); + reg = xgifb_reg_get(vb->Part4Port, 0x01); if (reg >= 0xE0) { hw_info->ujVBChipID = VB_CHIP_302LV; dev_info(&pdev->dev, @@ -1806,7 +1818,8 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) "XGI302LV bridge detected (revision 0x%02x)\n", reg); } else if (reg >= 0xB0) { - reg1 = xgifb_reg_get(XGIPART4, 0x23); + reg1 = xgifb_reg_get(vb->Part4Port, + 0x23); hw_info->ujVBChipID = VB_CHIP_302B; @@ -1844,7 +1857,8 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (xgifb_info->display2 == XGIFB_DISP_LCD) { if (!enable_dstn) { - reg = xgifb_reg_get(XGICR, IND_XGI_LCD_PANEL); + reg = xgifb_reg_get(vb->P3d4, + IND_XGI_LCD_PANEL); reg &= 0x0f; hw_info->ulCRT2LCDType = XGI310paneltype[reg]; } @@ -1940,11 +1954,11 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent) XGIfb_bpp_to_var(xgifb_info, &fb_info->var); fb_info->var.pixclock = (u32)(1000000000 / XGIfb_mode_rate_to_dclock - (&xgifb_info->dev_info, hw_info, + (vb, hw_info, XGIbios_mode[xgifb_info->mode_idx].mode_no)); - if (XGIfb_mode_rate_to_ddata(&xgifb_info->dev_info, - hw_info, XGIbios_mode[xgifb_info->mode_idx].mode_no, + if (XGIfb_mode_rate_to_ddata(vb, hw_info, + XGIbios_mode[xgifb_info->mode_idx].mode_no, &fb_info->var.left_margin, &fb_info->var.right_margin, &fb_info->var.upper_margin, diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c index e9d930f150cb..1fa0dc66406e 100644 --- a/drivers/staging/xgifb/vb_setmode.c +++ b/drivers/staging/xgifb/vb_setmode.c @@ -74,7 +74,8 @@ static void XGI_SetSeqRegs(struct vb_device_info *pVBInfo) /* Get SR1,2,3,4 from file */ /* SR1 is with screen off 0x20 */ SRdata = XGI330_StandTable.SR[i]; - xgifb_reg_set(pVBInfo->P3c4, i + 1, SRdata); /* Set SR 1 2 3 4 */ + /* Set SR 1 2 3 4 */ + xgifb_reg_set(pVBInfo->P3c4, i + 1, SRdata); } } @@ -628,12 +629,14 @@ static void xgifb_set_lcd(int chip_id, xgifb_reg_and(pVBInfo->P3c4, 0x35, ~0x80); /* Vsync polarity */ temp = XGI330_RefIndex[RefreshRateTableIndex].Ext_InfoFlag; - if (temp & 0x4000) + if (temp & 0x4000) { /* Hsync polarity */ xgifb_reg_or(pVBInfo->P3c4, 0x30, 0x20); - if (temp & 0x8000) + } + if (temp & 0x8000) { /* Vsync polarity */ xgifb_reg_or(pVBInfo->P3c4, 0x35, 0x80); + } } /* @@ -1225,9 +1228,10 @@ static void const *XGI_GetLcdPtr(struct XGI330_LCDDataTablStruct const *table, return table[i].DATAPTR; } -static struct SiS_TVData const *XGI_GetTVPtr(unsigned short ModeIdIndex, - unsigned short RefreshRateTableIndex, - struct vb_device_info *pVBInfo) +static struct SiS_TVData const *XGI_GetTVPtr( + unsigned short ModeIdIndex, + unsigned short RefreshRateTableIndex, + struct vb_device_info *pVBInfo) { unsigned short i, tempdx, tempal, modeflag; @@ -1480,14 +1484,16 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex, if (tempcx >= tempax) tempcx -= tempax; - xgifb_reg_set(pVBInfo->Part1Port, 0x1b, (unsigned short)(tempbx & 0xff)); - xgifb_reg_set(pVBInfo->Part1Port, 0x1c, (unsigned short)(tempcx & 0xff)); + xgifb_reg_set(pVBInfo->Part1Port, 0x1b, + (unsigned short)(tempbx & 0xff)); + xgifb_reg_set(pVBInfo->Part1Port, 0x1c, + (unsigned short)(tempcx & 0xff)); tempbx = (tempbx >> 8) & 0x07; tempcx = (tempcx >> 8) & 0x07; - xgifb_reg_set(pVBInfo->Part1Port, 0x1d, (unsigned short)((tempcx << 3) | - tempbx)); + xgifb_reg_set(pVBInfo->Part1Port, 0x1d, + (unsigned short)((tempcx << 3) | tempbx)); tempax = pVBInfo->VT; tempbx = LCDPtr1->LCDVRS; @@ -1501,8 +1507,10 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex, if (tempcx >= tempax) tempcx -= tempax; - xgifb_reg_set(pVBInfo->Part1Port, 0x18, (unsigned short)(tempbx & 0xff)); - xgifb_reg_and_or(pVBInfo->Part1Port, 0x19, ~0x0f, (unsigned short)(tempcx & 0x0f)); + xgifb_reg_set(pVBInfo->Part1Port, 0x18, + (unsigned short)(tempbx & 0xff)); + xgifb_reg_and_or(pVBInfo->Part1Port, 0x19, ~0x0f, + (unsigned short)(tempcx & 0x0f)); tempax = ((tempbx >> 8) & 0x07) << 3; @@ -1592,16 +1600,20 @@ static void XGI_SetLVDSRegs(unsigned short ModeIdIndex, tempax = ((tempbx >> 8) & 0xff) << 3; tempax |= (unsigned short)((temp3 >> 8) & 0x07); - xgifb_reg_set(pVBInfo->Part1Port, 0x20, (unsigned short)(tempax & 0xff)); - xgifb_reg_set(pVBInfo->Part1Port, 0x21, (unsigned short)(tempbx & 0xff)); + xgifb_reg_set(pVBInfo->Part1Port, 0x20, + (unsigned short)(tempax & 0xff)); + xgifb_reg_set(pVBInfo->Part1Port, 0x21, + (unsigned short)(tempbx & 0xff)); temp3 >>= 16; if (modeflag & HalfDCLK) temp3 >>= 1; - xgifb_reg_set(pVBInfo->Part1Port, 0x22, (unsigned short)((temp3 >> 8) & 0xff)); - xgifb_reg_set(pVBInfo->Part1Port, 0x23, (unsigned short)(temp3 & 0xff)); + xgifb_reg_set(pVBInfo->Part1Port, 0x22, + (unsigned short)((temp3 >> 8) & 0xff)); + xgifb_reg_set(pVBInfo->Part1Port, 0x23, + (unsigned short)(temp3 & 0xff)); } /* @@ -1760,9 +1772,10 @@ static void XGI_UpdateModeInfo(struct vb_device_info *pVBInfo) temp &= 0x05; - if (!(tempcl & ActiveLCD)) + if (!(tempcl & ActiveLCD)) { if (temp == 0x01) tempcl |= ActiveCRT2; + } if (temp == 0x04) tempcl |= ActiveLCD; @@ -1856,7 +1869,8 @@ finish: pVBInfo->VBType = tempbx; } -static void XGI_GetVBInfo(unsigned short ModeIdIndex, struct vb_device_info *pVBInfo) +static void XGI_GetVBInfo(unsigned short ModeIdIndex, + struct vb_device_info *pVBInfo) { unsigned short tempax, push, tempbx, temp, modeflag; @@ -1981,7 +1995,8 @@ static void XGI_GetVBInfo(unsigned short ModeIdIndex, struct vb_device_info *pVB pVBInfo->VBInfo = tempbx; } -static void XGI_GetTVInfo(unsigned short ModeIdIndex, struct vb_device_info *pVBInfo) +static void XGI_GetTVInfo(unsigned short ModeIdIndex, + struct vb_device_info *pVBInfo) { unsigned short tempbx = 0, resinfo = 0, modeflag, index1; @@ -1998,10 +2013,11 @@ static void XGI_GetTVInfo(unsigned short ModeIdIndex, struct vb_device_info *pVB if (tempbx & TVSetPALM) /* set to NTSC if PAL-M */ tempbx &= ~TVSetPAL; - } else + } else { tempbx &= (SetCHTVOverScan | TVSetNTSCJ | TVSetPAL); + } if (pVBInfo->VBInfo & SetCRT2ToSCART) tempbx |= TVSetPAL; @@ -2026,9 +2042,10 @@ static void XGI_GetTVInfo(unsigned short ModeIdIndex, struct vb_device_info *pVB (!(pVBInfo->VBInfo & SetNotSimuMode))) tempbx |= TVSimuMode; - if (!(tempbx & TVSetPAL) && (modeflag > 13) && (resinfo == 8)) + if (!(tempbx & TVSetPAL) && (modeflag > 13) && (resinfo == 8)) { /* NTSC 1024x768, */ tempbx |= NTSC1024x768; + } tempbx |= RPLLDIV2XO; @@ -2327,9 +2344,10 @@ void XGI_DisplayOff(struct xgifb_video_info *xgifb_info, mdelay(xgifb_info->lvds_data.PSC_S3); } - if (pVBInfo->IF_DEF_LVDS == 0) + if (pVBInfo->IF_DEF_LVDS == 0) { /* DVO/DVI signal off */ XGI_XG27BLSignalVDD(0x20, 0x00, pVBInfo); + } } xgifb_reg_and_or(pVBInfo->P3c4, 0x01, 0xDF, 0x20); @@ -2688,7 +2706,7 @@ static unsigned short XGI_GetColorDepth(unsigned short ModeIdIndex) static unsigned short XGI_GetOffset(unsigned short ModeNo, unsigned short ModeIdIndex, - unsigned short RefreshRateTableIndex) + unsigned short RefreshRateTableIndex) { unsigned short temp, colordepth, modeinfo, index, infoflag, ColorDepth[] = { 0x01, 0x02, 0x04 }; @@ -3633,7 +3651,8 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex, } } -static void XGI_SetLCDRegs(unsigned short ModeIdIndex, struct vb_device_info *pVBInfo) +static void XGI_SetLCDRegs(unsigned short ModeIdIndex, + struct vb_device_info *pVBInfo) { unsigned short pushbx, tempax, tempbx, tempcx, temp, tempah, tempbh, tempch; @@ -4527,8 +4546,10 @@ static unsigned short XGI_GetTVPtrIndex(struct vb_device_info *pVBInfo) * 1 : 301B/302B/301LV/302LV * Description : */ -static void XGI_GetTVPtrIndex2(unsigned short *tempbx, unsigned char *tempcl, - unsigned char *tempch, struct vb_device_info *pVBInfo) +static void XGI_GetTVPtrIndex2(unsigned short *tempbx, + unsigned char *tempcl, + unsigned char *tempch, + struct vb_device_info *pVBInfo) { *tempbx = 0; *tempcl = 0; @@ -4632,13 +4653,14 @@ static void XGI_SetLCDCap_A(unsigned short tempcx, static void XGI_SetLCDCap_B(unsigned short tempcx, struct vb_device_info *pVBInfo) { - if (tempcx & EnableLCD24bpp) /* 24bits */ + if (tempcx & EnableLCD24bpp) { /* 24bits */ xgifb_reg_and_or(pVBInfo->Part2Port, 0x1A, 0xE0, (unsigned short)(((tempcx & 0x00ff) >> 6) | 0x0c)); - else + } else { xgifb_reg_and_or(pVBInfo->Part2Port, 0x1A, 0xE0, (unsigned short)(((tempcx & 0x00ff) >> 6) | 0x18)); /* Enable Dither */ + } } static void XGI_LongWait(struct vb_device_info *pVBInfo) @@ -5461,8 +5483,9 @@ unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info, switch (HwDeviceExtension->ujVBChipID) { case VB_CHIP_301: /* fall through */ case VB_CHIP_302: + /* add for CRT2 */ XGI_SetCRT2Group301(ModeNo, HwDeviceExtension, - pVBInfo); /* add for CRT2 */ + pVBInfo); break; default: diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h index 0da63e1da32f..42ecf7fe6766 100644 --- a/drivers/staging/xgifb/vb_table.h +++ b/drivers/staging/xgifb/vb_table.h @@ -2493,7 +2493,7 @@ static const struct XGI301C_Tap4TimingStruct xgifb_ntsc_525_tap4_timing[] = { 0x02, 0x0C, 0x0E, 0x04, 0x01, 0x0B, 0x0E, 0x06, /* ; EA-EF */ 0x01, 0x0B, 0x0E, 0x06, 0x00, 0x0A, 0x0F, 0x07, /* ; F0-F7 */ 0x00, 0x0A, 0x0F, 0x07, 0x00, 0x09, 0x0F, 0x08 /* ; F8-FF */ - } + } } }; @@ -2507,7 +2507,7 @@ static const struct XGI301C_Tap4TimingStruct YPbPr750pTap4Timing[] = { 0x7D, 0x0F, 0x16, 0x7E, 0x7D, 0x0E, 0x17, 0x7E, /* ; EA-EF */ 0x7D, 0x0C, 0x18, 0x7F, 0x7D, 0x0A, 0x18, 0x01, /* ; F0-F7 */ 0x7D, 0x08, 0x19, 0x02, 0x7D, 0x06, 0x19, 0x04 /* F8-FF */ - } + } } }; #endif diff --git a/drivers/staging/unisys/visorbus/Kconfig b/drivers/visorbus/Kconfig index 511388075ffa..1f5812b936d0 100644 --- a/drivers/staging/unisys/visorbus/Kconfig +++ b/drivers/visorbus/Kconfig @@ -4,7 +4,7 @@ config UNISYS_VISORBUS tristate "Unisys visorbus driver" - depends on UNISYSSPAR + depends on X86_64 && ACPI ---help--- The visorbus driver is a virtualized bus for the Unisys s-Par firmware. Virtualized devices allow Linux guests on a system to share disks and diff --git a/drivers/staging/unisys/visorbus/Makefile b/drivers/visorbus/Makefile index 784cdc1f9d6a..e8df59d1301f 100644 --- a/drivers/staging/unisys/visorbus/Makefile +++ b/drivers/visorbus/Makefile @@ -8,5 +8,3 @@ obj-$(CONFIG_UNISYS_VISORBUS) += visorbus.o visorbus-y := visorbus_main.o visorbus-y += visorchannel.o visorbus-y += visorchipset.o - -ccflags-y += -Idrivers/staging/unisys/include diff --git a/drivers/staging/unisys/visorbus/controlvmchannel.h b/drivers/visorbus/controlvmchannel.h index 9ee9886a9aed..8c57562a070a 100644 --- a/drivers/staging/unisys/visorbus/controlvmchannel.h +++ b/drivers/visorbus/controlvmchannel.h @@ -1,24 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #ifndef __CONTROLVMCHANNEL_H__ #define __CONTROLVMCHANNEL_H__ #include <linux/uuid.h> - -#include "visorchannel.h" +#include <linux/visorbus.h> /* {2B3C2D10-7EF5-4ad8-B966-3448B7386B3D} */ #define VISOR_CONTROLVM_CHANNEL_GUID \ diff --git a/drivers/staging/unisys/visorbus/vbuschannel.h b/drivers/visorbus/vbuschannel.h index 981b180f3c4b..b1dce26166bf 100644 --- a/drivers/staging/unisys/visorbus/vbuschannel.h +++ b/drivers/visorbus/vbuschannel.h @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #ifndef __VBUSCHANNEL_H__ @@ -26,7 +17,7 @@ */ #include <linux/uuid.h> -#include "visorchannel.h" +#include <linux/visorbus.h> /* {193b331b-c58f-11da-95a9-00e08161165f} */ #define VISOR_VBUS_CHANNEL_GUID \ diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/visorbus/visorbus_main.c index 6cb6eb0673c6..0b2434cc4ecd 100644 --- a/drivers/staging/unisys/visorbus/visorbus_main.c +++ b/drivers/visorbus/visorbus_main.c @@ -1,25 +1,16 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright � 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #include <linux/ctype.h> #include <linux/debugfs.h> #include <linux/module.h> #include <linux/slab.h> +#include <linux/visorbus.h> #include <linux/uuid.h> -#include "visorbus.h" #include "visorbus_private.h" static const guid_t visor_vbus_channel_guid = VISOR_VBUS_CHANNEL_GUID; diff --git a/drivers/staging/unisys/visorbus/visorbus_private.h b/drivers/visorbus/visorbus_private.h index 4a8b12d7cfaa..366380b7f8d9 100644 --- a/drivers/staging/unisys/visorbus/visorbus_private.h +++ b/drivers/visorbus/visorbus_private.h @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #ifndef __VISORBUS_PRIVATE_H__ @@ -18,10 +9,10 @@ #include <linux/uuid.h> #include <linux/utsname.h> +#include <linux/visorbus.h> #include "controlvmchannel.h" #include "vbuschannel.h" -#include "visorbus.h" struct visor_device *visorbus_get_device_by_id(u32 bus_no, u32 dev_no, struct visor_device *from); diff --git a/drivers/staging/unisys/visorbus/visorchannel.c b/drivers/visorbus/visorchannel.c index aae16073ba03..bd890e0f456b 100644 --- a/drivers/staging/unisys/visorbus/visorchannel.c +++ b/drivers/visorbus/visorchannel.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ /* @@ -21,8 +12,8 @@ #include <linux/uuid.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/visorbus.h> -#include "visorbus.h" #include "visorbus_private.h" #include "controlvmchannel.h" diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/visorbus/visorchipset.c index fed554a43151..ca752b8f495f 100644 --- a/drivers/staging/unisys/visorbus/visorchipset.c +++ b/drivers/visorbus/visorchipset.c @@ -1,22 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2010 - 2015 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ #include <linux/acpi.h> #include <linux/crash_dump.h> +#include <linux/visorbus.h> -#include "visorbus.h" #include "visorbus_private.h" /* {72120008-4AAB-11DC-8530-444553544200} */ @@ -590,7 +581,8 @@ static void *parser_name_get(struct parser_context *ctx) struct visor_controlvm_parameters_header *phdr; phdr = &ctx->data; - if (phdr->name_offset + phdr->name_length > ctx->param_bytes) + if ((unsigned long)phdr->name_offset + + (unsigned long)phdr->name_length > ctx->param_bytes) return NULL; ctx->curr = (char *)&phdr + phdr->name_offset; ctx->bytes_remaining = phdr->name_length; @@ -1317,13 +1309,13 @@ static void parser_done(struct parser_context *ctx) static struct parser_context *parser_init_stream(u64 addr, u32 bytes, bool *retry) { - int allocbytes; + unsigned long allocbytes; struct parser_context *ctx; void *mapping; *retry = false; /* alloc an extra byte to ensure payload is \0 terminated */ - allocbytes = bytes + 1 + (sizeof(struct parser_context) - + allocbytes = (unsigned long)bytes + 1 + (sizeof(struct parser_context) - sizeof(struct visor_controlvm_parameters_header)); if ((chipset_dev->controlvm_payload_bytes_buffered + bytes) > MAX_CONTROLVM_PAYLOAD_BYTES) { diff --git a/fs/Kconfig b/fs/Kconfig index 0ed56752f208..9774588da60e 100644 --- a/fs/Kconfig +++ b/fs/Kconfig @@ -294,7 +294,6 @@ config NFS_COMMON source "net/sunrpc/Kconfig" source "fs/ceph/Kconfig" source "fs/cifs/Kconfig" -source "fs/ncpfs/Kconfig" source "fs/coda/Kconfig" source "fs/afs/Kconfig" source "fs/9p/Kconfig" diff --git a/fs/Makefile b/fs/Makefile index ef772f1eaff8..add789ea270a 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -92,7 +92,6 @@ obj-$(CONFIG_LOCKD) += lockd/ obj-$(CONFIG_NLS) += nls/ obj-$(CONFIG_SYSV_FS) += sysv/ obj-$(CONFIG_CIFS) += cifs/ -obj-$(CONFIG_NCP_FS) += ncpfs/ obj-$(CONFIG_HPFS_FS) += hpfs/ obj-$(CONFIG_NTFS_FS) += ntfs/ obj-$(CONFIG_UFS_FS) += ufs/ diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index f12a61be1ede..11579fd4126e 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -578,8 +578,8 @@ const struct iio_chan_spec * iio_device_register() - register a device with the IIO subsystem * @indio_dev: Device structure filled by the device driver **/ -#define iio_device_register(iio_dev) \ - __iio_device_register((iio_dev), THIS_MODULE) +#define iio_device_register(indio_dev) \ + __iio_device_register((indio_dev), THIS_MODULE) int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod); void iio_device_unregister(struct iio_dev *indio_dev); /** diff --git a/include/linux/iio/machine.h b/include/linux/iio/machine.h index 1601a2a63a72..5e1cfa75f652 100644 --- a/include/linux/iio/machine.h +++ b/include/linux/iio/machine.h @@ -28,4 +28,11 @@ struct iio_map { void *consumer_data; }; +#define IIO_MAP(_provider_channel, _consumer_dev_name, _consumer_channel) \ +{ \ + .adc_channel_label = _provider_channel, \ + .consumer_dev_name = _consumer_dev_name, \ + .consumer_channel = _consumer_channel, \ +} + #endif diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h index 7d5e44518379..b19b7204ef84 100644 --- a/include/linux/iio/trigger.h +++ b/include/linux/iio/trigger.h @@ -43,12 +43,13 @@ struct iio_trigger_ops { /** * struct iio_trigger - industrial I/O trigger device * @ops: [DRIVER] operations structure + * @owner: [INTERN] owner of this driver module * @id: [INTERN] unique id number * @name: [DRIVER] unique name * @dev: [DRIVER] associated device (if relevant) * @list: [INTERN] used in maintenance of global trigger list * @alloc_list: [DRIVER] used for driver specific trigger list - * @use_count: use count for the trigger + * @use_count: [INTERN] use count for the trigger. * @subirq_chip: [INTERN] associate 'virtual' irq chip. * @subirq_base: [INTERN] base number for irqs provided by trigger. * @subirqs: [INTERN] information about the 'child' irqs. diff --git a/drivers/staging/unisys/include/visorbus.h b/include/linux/visorbus.h index 1a0986ba3d24..0d8bd6769b13 100644 --- a/drivers/staging/unisys/include/visorbus.h +++ b/include/linux/visorbus.h @@ -1,17 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2010 - 2013 UNISYS CORPORATION * All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or - * NON INFRINGEMENT. See the GNU General Public License for more - * details. */ /* @@ -29,8 +19,172 @@ #include <linux/device.h> -#include "visorchannel.h" +#define VISOR_CHANNEL_SIGNATURE ('L' << 24 | 'N' << 16 | 'C' << 8 | 'E') + +/* + * enum channel_serverstate + * @CHANNELSRV_UNINITIALIZED: Channel is in an undefined state. + * @CHANNELSRV_READY: Channel has been initialized by server. + */ +enum channel_serverstate { + CHANNELSRV_UNINITIALIZED = 0, + CHANNELSRV_READY = 1 +}; + +/* + * enum channel_clientstate + * @CHANNELCLI_DETACHED: + * @CHANNELCLI_DISABLED: Client can see channel but is NOT allowed to use it + * unless given TBD* explicit request + * (should actually be < DETACHED). + * @CHANNELCLI_ATTACHING: Legacy EFI client request for EFI server to attach. + * @CHANNELCLI_ATTACHED: Idle, but client may want to use channel any time. + * @CHANNELCLI_BUSY: Client either wants to use or is using channel. + * @CHANNELCLI_OWNED: "No worries" state - client can access channel + * anytime. + */ +enum channel_clientstate { + CHANNELCLI_DETACHED = 0, + CHANNELCLI_DISABLED = 1, + CHANNELCLI_ATTACHING = 2, + CHANNELCLI_ATTACHED = 3, + CHANNELCLI_BUSY = 4, + CHANNELCLI_OWNED = 5 +}; + +/* + * Values for VISOR_CHANNEL_PROTOCOL.Features: This define exists so that + * a guest can look at the FeatureFlags in the io channel, and configure the + * driver to use interrupts or not based on this setting. All feature bits for + * all channels should be defined here. The io channel feature bits are defined + * below. + */ +#define VISOR_DRIVER_ENABLES_INTS (0x1ULL << 1) +#define VISOR_CHANNEL_IS_POLLING (0x1ULL << 3) +#define VISOR_IOVM_OK_DRIVER_DISABLING_INTS (0x1ULL << 4) +#define VISOR_DRIVER_DISABLES_INTS (0x1ULL << 5) +#define VISOR_DRIVER_ENHANCED_RCVBUF_CHECKING (0x1ULL << 6) + +/* + * struct channel_header - Common Channel Header + * @signature: Signature. + * @legacy_state: DEPRECATED - being replaced by. + * @header_size: sizeof(struct channel_header). + * @size: Total size of this channel in bytes. + * @features: Flags to modify behavior. + * @chtype: Channel type: data, bus, control, etc.. + * @partition_handle: ID of guest partition. + * @handle: Device number of this channel in client. + * @ch_space_offset: Offset in bytes to channel specific area. + * @version_id: Struct channel_header Version ID. + * @partition_index: Index of guest partition. + * @zone_uuid: Guid of Channel's zone. + * @cli_str_offset: Offset from channel header to null-terminated + * ClientString (0 if ClientString not present). + * @cli_state_boot: CHANNEL_CLIENTSTATE of pre-boot EFI client of this + * channel. + * @cmd_state_cli: CHANNEL_COMMANDSTATE (overloaded in Windows drivers, see + * ServerStateUp, ServerStateDown, etc). + * @cli_state_os: CHANNEL_CLIENTSTATE of Guest OS client of this channel. + * @ch_characteristic: CHANNEL_CHARACTERISTIC_<xxx>. + * @cmd_state_srv: CHANNEL_COMMANDSTATE (overloaded in Windows drivers, see + * ServerStateUp, ServerStateDown, etc). + * @srv_state: CHANNEL_SERVERSTATE. + * @cli_error_boot: Bits to indicate err states for boot clients, so err + * messages can be throttled. + * @cli_error_os: Bits to indicate err states for OS clients, so err + * messages can be throttled. + * @filler: Pad out to 128 byte cacheline. + * @recover_channel: Please add all new single-byte values below here. + */ +struct channel_header { + u64 signature; + u32 legacy_state; + /* SrvState, CliStateBoot, and CliStateOS below */ + u32 header_size; + u64 size; + u64 features; + guid_t chtype; + u64 partition_handle; + u64 handle; + u64 ch_space_offset; + u32 version_id; + u32 partition_index; + guid_t zone_guid; + u32 cli_str_offset; + u32 cli_state_boot; + u32 cmd_state_cli; + u32 cli_state_os; + u32 ch_characteristic; + u32 cmd_state_srv; + u32 srv_state; + u8 cli_error_boot; + u8 cli_error_os; + u8 filler[1]; + u8 recover_channel; +} __packed; + +#define VISOR_CHANNEL_ENABLE_INTS (0x1ULL << 0) + +/* + * struct signal_queue_header - Subheader for the Signal Type variation of the + * Common Channel. + * @version: SIGNAL_QUEUE_HEADER Version ID. + * @chtype: Queue type: storage, network. + * @size: Total size of this queue in bytes. + * @sig_base_offset: Offset to signal queue area. + * @features: Flags to modify behavior. + * @num_sent: Total # of signals placed in this queue. + * @num_overflows: Total # of inserts failed due to full queue. + * @signal_size: Total size of a signal for this queue. + * @max_slots: Max # of slots in queue, 1 slot is always empty. + * @max_signals: Max # of signals in queue (MaxSignalSlots-1). + * @head: Queue head signal #. + * @num_received: Total # of signals removed from this queue. + * @tail: Queue tail signal. + * @reserved1: Reserved field. + * @reserved2: Reserved field. + * @client_queue: + * @num_irq_received: Total # of Interrupts received. This is incremented by the + * ISR in the guest windows driver. + * @num_empty: Number of times that visor_signal_remove is called and + * returned Empty Status. + * @errorflags: Error bits set during SignalReinit to denote trouble with + * client's fields. + * @filler: Pad out to 64 byte cacheline. + */ +struct signal_queue_header { + /* 1st cache line */ + u32 version; + u32 chtype; + u64 size; + u64 sig_base_offset; + u64 features; + u64 num_sent; + u64 num_overflows; + u32 signal_size; + u32 max_slots; + u32 max_signals; + u32 head; + /* 2nd cache line */ + u64 num_received; + u32 tail; + u32 reserved1; + u64 reserved2; + u64 client_queue; + u64 num_irq_received; + u64 num_empty; + u32 errorflags; + u8 filler[12]; +} __packed; +/* VISORCHANNEL Guids */ +/* {414815ed-c58c-11da-95a9-00e08161165f} */ +#define VISOR_VHBA_CHANNEL_GUID \ + GUID_INIT(0x414815ed, 0xc58c, 0x11da, \ + 0x95, 0xa9, 0x0, 0xe0, 0x81, 0x61, 0x16, 0x5f) +#define VISOR_VHBA_CHANNEL_GUID_STR \ + "414815ed-c58c-11da-95a9-00e08161165f" struct visorchipset_state { u32 created:1; u32 attached:1; diff --git a/kernel/workqueue.c b/kernel/workqueue.c index 8dd2e66e8383..017044c26233 100644 --- a/kernel/workqueue.c +++ b/kernel/workqueue.c @@ -3807,6 +3807,7 @@ int apply_workqueue_attrs(struct workqueue_struct *wq, return ret; } +EXPORT_SYMBOL_GPL(apply_workqueue_attrs); /** * wq_update_unbound_numa - update NUMA affinity of a wq for CPU hot[un]plug diff --git a/net/Kconfig b/net/Kconfig index 37ec8e67af57..0428f12c25c2 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -213,7 +213,6 @@ source "net/dsa/Kconfig" source "net/8021q/Kconfig" source "net/decnet/Kconfig" source "net/llc/Kconfig" -source "net/ipx/Kconfig" source "drivers/net/appletalk/Kconfig" source "net/x25/Kconfig" source "net/lapb/Kconfig" diff --git a/net/Makefile b/net/Makefile index 14fede520840..a6147c61b174 100644 --- a/net/Makefile +++ b/net/Makefile @@ -24,7 +24,6 @@ obj-$(CONFIG_PACKET) += packet/ obj-$(CONFIG_NET_KEY) += key/ obj-$(CONFIG_BRIDGE) += bridge/ obj-$(CONFIG_NET_DSA) += dsa/ -obj-$(CONFIG_IPX) += ipx/ obj-$(CONFIG_ATALK) += appletalk/ obj-$(CONFIG_X25) += x25/ obj-$(CONFIG_LAPB) += lapb/ |