diff options
| -rw-r--r-- | drivers/media/rc/Kconfig | 11 | ||||
| -rw-r--r-- | drivers/media/rc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/media/rc/keymaps/Makefile | 3 | ||||
| -rw-r--r-- | drivers/media/rc/keymaps/rc-zx-irdec.c | 79 | ||||
| -rw-r--r-- | drivers/media/rc/zx-irdec.c | 183 | ||||
| -rw-r--r-- | include/media/rc-map.h | 1 |
6 files changed, 277 insertions, 1 deletions
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig index d27be2516974..d9ce8ff55d0c 100644 --- a/drivers/media/rc/Kconfig +++ b/drivers/media/rc/Kconfig @@ -469,6 +469,17 @@ config IR_SIR To compile this driver as a module, choose M here: the module will be called sir-ir. +config IR_ZX + tristate "ZTE ZX IR remote control" + depends on RC_CORE + depends on ARCH_ZX || COMPILE_TEST + ---help--- + Say Y if you want to use the IR remote control available + on ZTE ZX family SoCs. + + To compile this driver as a module, choose M here: the + module will be called zx-irdec. + endif #RC_DEVICES endif #RC_CORE diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile index 466c40216347..9bc6a3980ed0 100644 --- a/drivers/media/rc/Makefile +++ b/drivers/media/rc/Makefile @@ -43,3 +43,4 @@ obj-$(CONFIG_IR_IMG) += img-ir/ obj-$(CONFIG_IR_SERIAL) += serial_ir.o obj-$(CONFIG_IR_SIR) += sir_ir.o obj-$(CONFIG_IR_MTK) += mtk-cir.o +obj-$(CONFIG_IR_ZX) += zx-irdec.o diff --git a/drivers/media/rc/keymaps/Makefile b/drivers/media/rc/keymaps/Makefile index 2945f99907b5..af6496d709fb 100644 --- a/drivers/media/rc/keymaps/Makefile +++ b/drivers/media/rc/keymaps/Makefile @@ -109,4 +109,5 @@ obj-$(CONFIG_RC_MAP) += rc-adstech-dvb-t-pci.o \ rc-videomate-tv-pvr.o \ rc-winfast.o \ rc-winfast-usbii-deluxe.o \ - rc-su3000.o + rc-su3000.o \ + rc-zx-irdec.o diff --git a/drivers/media/rc/keymaps/rc-zx-irdec.c b/drivers/media/rc/keymaps/rc-zx-irdec.c new file mode 100644 index 000000000000..cc889df47eb8 --- /dev/null +++ b/drivers/media/rc/keymaps/rc-zx-irdec.c @@ -0,0 +1,79 @@ +/* + * Copyright (C) 2017 Sanechips Technology Co., Ltd. + * Copyright 2017 Linaro Ltd. + * + * 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. + */ + +#include <linux/module.h> +#include <media/rc-map.h> + +static struct rc_map_table zx_irdec_table[] = { + { 0x01, KEY_1 }, + { 0x02, KEY_2 }, + { 0x03, KEY_3 }, + { 0x04, KEY_4 }, + { 0x05, KEY_5 }, + { 0x06, KEY_6 }, + { 0x07, KEY_7 }, + { 0x08, KEY_8 }, + { 0x09, KEY_9 }, + { 0x31, KEY_0 }, + { 0x16, KEY_DELETE }, + { 0x0a, KEY_MODE }, /* Input method */ + { 0x0c, KEY_VOLUMEUP }, + { 0x18, KEY_VOLUMEDOWN }, + { 0x0b, KEY_CHANNELUP }, + { 0x15, KEY_CHANNELDOWN }, + { 0x0d, KEY_PAGEUP }, + { 0x13, KEY_PAGEDOWN }, + { 0x46, KEY_FASTFORWARD }, + { 0x43, KEY_REWIND }, + { 0x44, KEY_PLAYPAUSE }, + { 0x45, KEY_STOP }, + { 0x49, KEY_OK }, + { 0x47, KEY_UP }, + { 0x4b, KEY_DOWN }, + { 0x48, KEY_LEFT }, + { 0x4a, KEY_RIGHT }, + { 0x4d, KEY_MENU }, + { 0x56, KEY_APPSELECT }, /* Application */ + { 0x4c, KEY_BACK }, + { 0x1e, KEY_INFO }, + { 0x4e, KEY_F1 }, + { 0x4f, KEY_F2 }, + { 0x50, KEY_F3 }, + { 0x51, KEY_F4 }, + { 0x1c, KEY_AUDIO }, + { 0x12, KEY_MUTE }, + { 0x11, KEY_DOT }, /* Location */ + { 0x1d, KEY_SETUP }, + { 0x40, KEY_POWER }, +}; + +static struct rc_map_list zx_irdec_map = { + .map = { + .scan = zx_irdec_table, + .size = ARRAY_SIZE(zx_irdec_table), + .rc_type = RC_TYPE_NEC, + .name = RC_MAP_ZX_IRDEC, + } +}; + +static int __init init_rc_map_zx_irdec(void) +{ + return rc_map_register(&zx_irdec_map); +} + +static void __exit exit_rc_map_zx_irdec(void) +{ + rc_map_unregister(&zx_irdec_map); +} + +module_init(init_rc_map_zx_irdec) +module_exit(exit_rc_map_zx_irdec) + +MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/rc/zx-irdec.c b/drivers/media/rc/zx-irdec.c new file mode 100644 index 000000000000..9452bac9262c --- /dev/null +++ b/drivers/media/rc/zx-irdec.c @@ -0,0 +1,183 @@ +/* + * Copyright (C) 2017 Sanechips Technology Co., Ltd. + * Copyright 2017 Linaro Ltd. + * + * 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. + */ + +#include <linux/device.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/module.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> + +#include <media/rc-core.h> + +#define DRIVER_NAME "zx-irdec" + +#define ZX_IR_ENABLE 0x04 +#define ZX_IREN BIT(0) +#define ZX_IR_CTRL 0x08 +#define ZX_DEGL_MASK GENMASK(21, 20) +#define ZX_DEGL_VALUE(x) (((x) << 20) & ZX_DEGL_MASK) +#define ZX_WDBEGIN_MASK GENMASK(18, 8) +#define ZX_WDBEGIN_VALUE(x) (((x) << 8) & ZX_WDBEGIN_MASK) +#define ZX_IR_INTEN 0x10 +#define ZX_IR_INTSTCLR 0x14 +#define ZX_IR_CODE 0x30 +#define ZX_IR_CNUM 0x34 +#define ZX_NECRPT BIT(16) + +struct zx_irdec { + void __iomem *base; + struct rc_dev *rcd; +}; + +static void zx_irdec_set_mask(struct zx_irdec *irdec, unsigned int reg, + u32 mask, u32 value) +{ + u32 data; + + data = readl(irdec->base + reg); + data &= ~mask; + data |= value & mask; + writel(data, irdec->base + reg); +} + +static irqreturn_t zx_irdec_irq(int irq, void *dev_id) +{ + struct zx_irdec *irdec = dev_id; + u8 address, not_address; + u8 command, not_command; + u32 rawcode, scancode; + enum rc_type rc_type; + + /* Clear interrupt */ + writel(1, irdec->base + ZX_IR_INTSTCLR); + + /* Check repeat frame */ + if (readl(irdec->base + ZX_IR_CNUM) & ZX_NECRPT) { + rc_repeat(irdec->rcd); + goto done; + } + + rawcode = readl(irdec->base + ZX_IR_CODE); + not_command = (rawcode >> 24) & 0xff; + command = (rawcode >> 16) & 0xff; + not_address = (rawcode >> 8) & 0xff; + address = rawcode & 0xff; + + scancode = ir_nec_bytes_to_scancode(address, not_address, + command, not_command, + &rc_type); + rc_keydown(irdec->rcd, rc_type, scancode, 0); + +done: + return IRQ_HANDLED; +} + +static int zx_irdec_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct zx_irdec *irdec; + struct resource *res; + struct rc_dev *rcd; + int irq; + int ret; + + irdec = devm_kzalloc(dev, sizeof(*irdec), GFP_KERNEL); + if (!irdec) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irdec->base = devm_ioremap_resource(dev, res); + if (IS_ERR(irdec->base)) + return PTR_ERR(irdec->base); + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + rcd = devm_rc_allocate_device(dev, RC_DRIVER_SCANCODE); + if (!rcd) { + dev_err(dev, "failed to allocate rc device\n"); + return -ENOMEM; + } + + irdec->rcd = rcd; + + rcd->priv = irdec; + rcd->input_phys = DRIVER_NAME "/input0"; + rcd->input_id.bustype = BUS_HOST; + rcd->map_name = RC_MAP_ZX_IRDEC; + rcd->allowed_protocols = RC_BIT_NEC | RC_BIT_NECX | RC_BIT_NEC32; + rcd->driver_name = DRIVER_NAME; + rcd->device_name = DRIVER_NAME; + + platform_set_drvdata(pdev, irdec); + + ret = devm_rc_register_device(dev, rcd); + if (ret) { + dev_err(dev, "failed to register rc device\n"); + return ret; + } + + ret = devm_request_irq(dev, irq, zx_irdec_irq, 0, NULL, irdec); + if (ret) { + dev_err(dev, "failed to request irq\n"); + return ret; + } + + /* + * Initialize deglitch level and watchdog counter beginner as + * recommended by vendor BSP code. + */ + zx_irdec_set_mask(irdec, ZX_IR_CTRL, ZX_DEGL_MASK, ZX_DEGL_VALUE(0)); + zx_irdec_set_mask(irdec, ZX_IR_CTRL, ZX_WDBEGIN_MASK, + ZX_WDBEGIN_VALUE(0x21c)); + + /* Enable interrupt */ + writel(1, irdec->base + ZX_IR_INTEN); + + /* Enable the decoder */ + zx_irdec_set_mask(irdec, ZX_IR_ENABLE, ZX_IREN, ZX_IREN); + + return 0; +} + +static int zx_irdec_remove(struct platform_device *pdev) +{ + struct zx_irdec *irdec = platform_get_drvdata(pdev); + + /* Disable the decoder */ + zx_irdec_set_mask(irdec, ZX_IR_ENABLE, ZX_IREN, 0); + + /* Disable interrupt */ + writel(0, irdec->base + ZX_IR_INTEN); + + return 0; +} + +static const struct of_device_id zx_irdec_match[] = { + { .compatible = "zte,zx296718-irdec" }, + { }, +}; +MODULE_DEVICE_TABLE(of, zx_irdec_match); + +static struct platform_driver zx_irdec_driver = { + .probe = zx_irdec_probe, + .remove = zx_irdec_remove, + .driver = { + .name = DRIVER_NAME, + .of_match_table = zx_irdec_match, + }, +}; +module_platform_driver(zx_irdec_driver); + +MODULE_DESCRIPTION("ZTE ZX IR remote control driver"); +MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/media/rc-map.h b/include/media/rc-map.h index 1a815a572fa1..c69482852f29 100644 --- a/include/media/rc-map.h +++ b/include/media/rc-map.h @@ -313,6 +313,7 @@ struct rc_map *rc_map_get(const char *name); #define RC_MAP_WINFAST "rc-winfast" #define RC_MAP_WINFAST_USBII_DELUXE "rc-winfast-usbii-deluxe" #define RC_MAP_SU3000 "rc-su3000" +#define RC_MAP_ZX_IRDEC "rc-zx-irdec" /* * Please, do not just append newer Remote Controller names at the end. |