diff options
author | Jean Delvare <khali@linux-fr.org> | 2011-03-21 17:59:36 +0100 |
---|---|---|
committer | Jean Delvare <khali@endymion.delvare> | 2011-03-21 17:59:36 +0100 |
commit | ff606677f6a47c63329cf8e6c7cf978c29f2d736 (patch) | |
tree | 565bcdaa1f5058af0a6fd2260b3c45029c955d08 /drivers/hwmon | |
parent | efcfed9bad88be8193ee6a1b8e72d7381e7b0e0e (diff) | |
download | linux-ff606677f6a47c63329cf8e6c7cf978c29f2d736.tar.bz2 |
Move lis3lv02d drivers to drivers/misc
The lis3lv02d drivers aren't hardware monitoring drivers, so the don't
belong to drivers/hwmon. Move them to drivers/misc, short of a better
home.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Eric Piel <eric.piel@tremplin-utc.net>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Eric Piel <eric.piel@tremplin-utc.net>
Tested-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r-- | drivers/hwmon/Kconfig | 40 | ||||
-rw-r--r-- | drivers/hwmon/Makefile | 5 | ||||
-rw-r--r-- | drivers/hwmon/lis3lv02d.c | 1000 | ||||
-rw-r--r-- | drivers/hwmon/lis3lv02d.h | 291 | ||||
-rw-r--r-- | drivers/hwmon/lis3lv02d_i2c.c | 279 | ||||
-rw-r--r-- | drivers/hwmon/lis3lv02d_spi.c | 145 |
6 files changed, 0 insertions, 1760 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 3f8c895417de..47621abb9a05 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -2,12 +2,6 @@ # Hardware monitoring chip drivers configuration # -config SENSORS_LIS3LV02D - tristate - depends on INPUT - select INPUT_POLLDEV - default n - menuconfig HWMON tristate "Hardware Monitoring support" depends on HAS_IOMEM @@ -1221,40 +1215,6 @@ config SENSORS_ULTRA45 This driver provides support for the Ultra45 workstation environmental sensors. -config SENSORS_LIS3_SPI - tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI)" - depends on !ACPI && SPI_MASTER && INPUT - select SENSORS_LIS3LV02D - default n - help - This driver provides support for the LIS3LV02Dx accelerometer connected - via SPI. The accelerometer data is readable via - /sys/devices/platform/lis3lv02d. - - This driver also provides an absolute input class device, allowing - the laptop to act as a pinball machine-esque joystick. - - This driver can also be built as modules. If so, the core module - will be called lis3lv02d and a specific module for the SPI transport - is called lis3lv02d_spi. - -config SENSORS_LIS3_I2C - tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (I2C)" - depends on I2C && INPUT - select SENSORS_LIS3LV02D - default n - help - This driver provides support for the LIS3LV02Dx accelerometer connected - via I2C. The accelerometer data is readable via - /sys/devices/platform/lis3lv02d. - - This driver also provides an absolute input class device, allowing - the device to act as a pinball machine-esque joystick. - - This driver can also be built as modules. If so, the core module - will be called lis3lv02d and a specific module for the I2C transport - is called lis3lv02d_i2c. - config SENSORS_APPLESMC tristate "Apple SMC (Motion sensor, light sensor, keyboard backlight)" depends on INPUT && X86 diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 55ba906def74..c068f82082cd 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -5,9 +5,6 @@ obj-$(CONFIG_HWMON) += hwmon.o obj-$(CONFIG_HWMON_VID) += hwmon-vid.o -# Helper drivers -obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o - # APCI drivers obj-$(CONFIG_SENSORS_ATK0110) += asus_atk0110.o @@ -66,8 +63,6 @@ obj-$(CONFIG_SENSORS_JZ4740) += jz4740-hwmon.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o obj-$(CONFIG_SENSORS_K10TEMP) += k10temp.o obj-$(CONFIG_SENSORS_LINEAGE) += lineage-pem.o -obj-$(CONFIG_SENSORS_LIS3_SPI) += lis3lv02d_spi.o -obj-$(CONFIG_SENSORS_LIS3_I2C) += lis3lv02d_i2c.o obj-$(CONFIG_SENSORS_LM63) += lm63.o obj-$(CONFIG_SENSORS_LM70) += lm70.o obj-$(CONFIG_SENSORS_LM73) += lm73.o diff --git a/drivers/hwmon/lis3lv02d.c b/drivers/hwmon/lis3lv02d.c deleted file mode 100644 index d805e8e57967..000000000000 --- a/drivers/hwmon/lis3lv02d.c +++ /dev/null @@ -1,1000 +0,0 @@ -/* - * lis3lv02d.c - ST LIS3LV02DL accelerometer driver - * - * Copyright (C) 2007-2008 Yan Burman - * Copyright (C) 2008 Eric Piel - * Copyright (C) 2008-2009 Pavel Machek - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/input-polldev.h> -#include <linux/delay.h> -#include <linux/wait.h> -#include <linux/poll.h> -#include <linux/slab.h> -#include <linux/freezer.h> -#include <linux/uaccess.h> -#include <linux/miscdevice.h> -#include <linux/pm_runtime.h> -#include <asm/atomic.h> -#include "lis3lv02d.h" - -#define DRIVER_NAME "lis3lv02d" - -/* joystick device poll interval in milliseconds */ -#define MDPS_POLL_INTERVAL 50 -#define MDPS_POLL_MIN 0 -#define MDPS_POLL_MAX 2000 - -#define LIS3_SYSFS_POWERDOWN_DELAY 5000 /* In milliseconds */ - -#define SELFTEST_OK 0 -#define SELFTEST_FAIL -1 -#define SELFTEST_IRQ -2 - -#define IRQ_LINE0 0 -#define IRQ_LINE1 1 - -/* - * The sensor can also generate interrupts (DRDY) but it's pretty pointless - * because they are generated even if the data do not change. So it's better - * to keep the interrupt for the free-fall event. The values are updated at - * 40Hz (at the lowest frequency), but as it can be pretty time consuming on - * some low processor, we poll the sensor only at 20Hz... enough for the - * joystick. - */ - -#define LIS3_PWRON_DELAY_WAI_12B (5000) -#define LIS3_PWRON_DELAY_WAI_8B (3000) - -/* - * LIS3LV02D spec says 1024 LSBs corresponds 1 G -> 1LSB is 1000/1024 mG - * LIS302D spec says: 18 mG / digit - * LIS3_ACCURACY is used to increase accuracy of the intermediate - * calculation results. - */ -#define LIS3_ACCURACY 1024 -/* Sensitivity values for -2G +2G scale */ -#define LIS3_SENSITIVITY_12B ((LIS3_ACCURACY * 1000) / 1024) -#define LIS3_SENSITIVITY_8B (18 * LIS3_ACCURACY) - -#define LIS3_DEFAULT_FUZZ_12B 3 -#define LIS3_DEFAULT_FLAT_12B 3 -#define LIS3_DEFAULT_FUZZ_8B 1 -#define LIS3_DEFAULT_FLAT_8B 1 - -struct lis3lv02d lis3_dev = { - .misc_wait = __WAIT_QUEUE_HEAD_INITIALIZER(lis3_dev.misc_wait), -}; - -EXPORT_SYMBOL_GPL(lis3_dev); - -/* just like param_set_int() but does sanity-check so that it won't point - * over the axis array size - */ -static int param_set_axis(const char *val, const struct kernel_param *kp) -{ - int ret = param_set_int(val, kp); - if (!ret) { - int val = *(int *)kp->arg; - if (val < 0) - val = -val; - if (!val || val > 3) - return -EINVAL; - } - return ret; -} - -static struct kernel_param_ops param_ops_axis = { - .set = param_set_axis, - .get = param_get_int, -}; - -module_param_array_named(axes, lis3_dev.ac.as_array, axis, NULL, 0644); -MODULE_PARM_DESC(axes, "Axis-mapping for x,y,z directions"); - -static s16 lis3lv02d_read_8(struct lis3lv02d *lis3, int reg) -{ - s8 lo; - if (lis3->read(lis3, reg, &lo) < 0) - return 0; - - return lo; -} - -static s16 lis3lv02d_read_12(struct lis3lv02d *lis3, int reg) -{ - u8 lo, hi; - - lis3->read(lis3, reg - 1, &lo); - lis3->read(lis3, reg, &hi); - /* In "12 bit right justified" mode, bit 6, bit 7, bit 8 = bit 5 */ - return (s16)((hi << 8) | lo); -} - -/** - * lis3lv02d_get_axis - For the given axis, give the value converted - * @axis: 1,2,3 - can also be negative - * @hw_values: raw values returned by the hardware - * - * Returns the converted value. - */ -static inline int lis3lv02d_get_axis(s8 axis, int hw_values[3]) -{ - if (axis > 0) - return hw_values[axis - 1]; - else - return -hw_values[-axis - 1]; -} - -/** - * lis3lv02d_get_xyz - Get X, Y and Z axis values from the accelerometer - * @lis3: pointer to the device struct - * @x: where to store the X axis value - * @y: where to store the Y axis value - * @z: where to store the Z axis value - * - * Note that 40Hz input device can eat up about 10% CPU at 800MHZ - */ -static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z) -{ - int position[3]; - int i; - - if (lis3->blkread) { - if (lis3_dev.whoami == WAI_12B) { - u16 data[3]; - lis3->blkread(lis3, OUTX_L, 6, (u8 *)data); - for (i = 0; i < 3; i++) - position[i] = (s16)le16_to_cpu(data[i]); - } else { - u8 data[5]; - /* Data: x, dummy, y, dummy, z */ - lis3->blkread(lis3, OUTX, 5, data); - for (i = 0; i < 3; i++) - position[i] = (s8)data[i * 2]; - } - } else { - position[0] = lis3->read_data(lis3, OUTX); - position[1] = lis3->read_data(lis3, OUTY); - position[2] = lis3->read_data(lis3, OUTZ); - } - - for (i = 0; i < 3; i++) - position[i] = (position[i] * lis3->scale) / LIS3_ACCURACY; - - *x = lis3lv02d_get_axis(lis3->ac.x, position); - *y = lis3lv02d_get_axis(lis3->ac.y, position); - *z = lis3lv02d_get_axis(lis3->ac.z, position); -} - -/* conversion btw sampling rate and the register values */ -static int lis3_12_rates[4] = {40, 160, 640, 2560}; -static int lis3_8_rates[2] = {100, 400}; -static int lis3_3dc_rates[16] = {0, 1, 10, 25, 50, 100, 200, 400, 1600, 5000}; - -/* ODR is Output Data Rate */ -static int lis3lv02d_get_odr(void) -{ - u8 ctrl; - int shift; - - lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl); - ctrl &= lis3_dev.odr_mask; - shift = ffs(lis3_dev.odr_mask) - 1; - return lis3_dev.odrs[(ctrl >> shift)]; -} - -static int lis3lv02d_set_odr(int rate) -{ - u8 ctrl; - int i, len, shift; - - if (!rate) - return -EINVAL; - - lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl); - ctrl &= ~lis3_dev.odr_mask; - len = 1 << hweight_long(lis3_dev.odr_mask); /* # of possible values */ - shift = ffs(lis3_dev.odr_mask) - 1; - - for (i = 0; i < len; i++) - if (lis3_dev.odrs[i] == rate) { - lis3_dev.write(&lis3_dev, CTRL_REG1, - ctrl | (i << shift)); - return 0; - } - return -EINVAL; -} - -static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3]) -{ - u8 ctlreg, reg; - s16 x, y, z; - u8 selftest; - int ret; - u8 ctrl_reg_data; - unsigned char irq_cfg; - - mutex_lock(&lis3->mutex); - - irq_cfg = lis3->irq_cfg; - if (lis3_dev.whoami == WAI_8B) { - lis3->data_ready_count[IRQ_LINE0] = 0; - lis3->data_ready_count[IRQ_LINE1] = 0; - - /* Change interrupt cfg to data ready for selftest */ - atomic_inc(&lis3_dev.wake_thread); - lis3->irq_cfg = LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY; - lis3->read(lis3, CTRL_REG3, &ctrl_reg_data); - lis3->write(lis3, CTRL_REG3, (ctrl_reg_data & - ~(LIS3_IRQ1_MASK | LIS3_IRQ2_MASK)) | - (LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY)); - } - - if (lis3_dev.whoami == WAI_3DC) { - ctlreg = CTRL_REG4; - selftest = CTRL4_ST0; - } else { - ctlreg = CTRL_REG1; - if (lis3_dev.whoami == WAI_12B) - selftest = CTRL1_ST; - else - selftest = CTRL1_STP; - } - - lis3->read(lis3, ctlreg, ®); - lis3->write(lis3, ctlreg, (reg | selftest)); - msleep(lis3->pwron_delay / lis3lv02d_get_odr()); - - /* Read directly to avoid axis remap */ - x = lis3->read_data(lis3, OUTX); - y = lis3->read_data(lis3, OUTY); - z = lis3->read_data(lis3, OUTZ); - - /* back to normal settings */ - lis3->write(lis3, ctlreg, reg); - msleep(lis3->pwron_delay / lis3lv02d_get_odr()); - - results[0] = x - lis3->read_data(lis3, OUTX); - results[1] = y - lis3->read_data(lis3, OUTY); - results[2] = z - lis3->read_data(lis3, OUTZ); - - ret = 0; - - if (lis3_dev.whoami == WAI_8B) { - /* Restore original interrupt configuration */ - atomic_dec(&lis3_dev.wake_thread); - lis3->write(lis3, CTRL_REG3, ctrl_reg_data); - lis3->irq_cfg = irq_cfg; - - if ((irq_cfg & LIS3_IRQ1_MASK) && - lis3->data_ready_count[IRQ_LINE0] < 2) { - ret = SELFTEST_IRQ; - goto fail; - } - - if ((irq_cfg & LIS3_IRQ2_MASK) && - lis3->data_ready_count[IRQ_LINE1] < 2) { - ret = SELFTEST_IRQ; - goto fail; - } - } - - if (lis3->pdata) { - int i; - for (i = 0; i < 3; i++) { - /* Check against selftest acceptance limits */ - if ((results[i] < lis3->pdata->st_min_limits[i]) || - (results[i] > lis3->pdata->st_max_limits[i])) { - ret = SELFTEST_FAIL; - goto fail; - } - } - } - - /* test passed */ -fail: - mutex_unlock(&lis3->mutex); - return ret; -} - -/* - * Order of registers in the list affects to order of the restore process. - * Perhaps it is a good idea to set interrupt enable register as a last one - * after all other configurations - */ -static u8 lis3_wai8_regs[] = { FF_WU_CFG_1, FF_WU_THS_1, FF_WU_DURATION_1, - FF_WU_CFG_2, FF_WU_THS_2, FF_WU_DURATION_2, - CLICK_CFG, CLICK_SRC, CLICK_THSY_X, CLICK_THSZ, - CLICK_TIMELIMIT, CLICK_LATENCY, CLICK_WINDOW, - CTRL_REG1, CTRL_REG2, CTRL_REG3}; - -static u8 lis3_wai12_regs[] = {FF_WU_CFG, FF_WU_THS_L, FF_WU_THS_H, - FF_WU_DURATION, DD_CFG, DD_THSI_L, DD_THSI_H, - DD_THSE_L, DD_THSE_H, - CTRL_REG1, CTRL_REG3, CTRL_REG2}; - -static inline void lis3_context_save(struct lis3lv02d *lis3) -{ - int i; - for (i = 0; i < lis3->regs_size; i++) - lis3->read(lis3, lis3->regs[i], &lis3->reg_cache[i]); - lis3->regs_stored = true; -} - -static inline void lis3_context_restore(struct lis3lv02d *lis3) -{ - int i; - if (lis3->regs_stored) - for (i = 0; i < lis3->regs_size; i++) - lis3->write(lis3, lis3->regs[i], lis3->reg_cache[i]); -} - -void lis3lv02d_poweroff(struct lis3lv02d *lis3) -{ - if (lis3->reg_ctrl) - lis3_context_save(lis3); - /* disable X,Y,Z axis and power down */ - lis3->write(lis3, CTRL_REG1, 0x00); - if (lis3->reg_ctrl) - lis3->reg_ctrl(lis3, LIS3_REG_OFF); -} -EXPORT_SYMBOL_GPL(lis3lv02d_poweroff); - -void lis3lv02d_poweron(struct lis3lv02d *lis3) -{ - u8 reg; - - lis3->init(lis3); - - /* - * Common configuration - * BDU: (12 bits sensors only) LSB and MSB values are not updated until - * both have been read. So the value read will always be correct. - * Set BOOT bit to refresh factory tuning values. - */ - lis3->read(lis3, CTRL_REG2, ®); - if (lis3->whoami == WAI_12B) - reg |= CTRL2_BDU | CTRL2_BOOT; - else - reg |= CTRL2_BOOT_8B; - lis3->write(lis3, CTRL_REG2, reg); - - /* LIS3 power on delay is quite long */ - msleep(lis3->pwron_delay / lis3lv02d_get_odr()); - - if (lis3->reg_ctrl) - lis3_context_restore(lis3); -} -EXPORT_SYMBOL_GPL(lis3lv02d_poweron); - - -static void lis3lv02d_joystick_poll(struct input_polled_dev *pidev) -{ - int x, y, z; - - mutex_lock(&lis3_dev.mutex); - lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); - input_report_abs(pidev->input, ABS_X, x); - input_report_abs(pidev->input, ABS_Y, y); - input_report_abs(pidev->input, ABS_Z, z); - input_sync(pidev->input); - mutex_unlock(&lis3_dev.mutex); -} - -static void lis3lv02d_joystick_open(struct input_polled_dev *pidev) -{ - if (lis3_dev.pm_dev) - pm_runtime_get_sync(lis3_dev.pm_dev); - - if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev) - atomic_set(&lis3_dev.wake_thread, 1); - /* - * Update coordinates for the case where poll interval is 0 and - * the chip in running purely under interrupt control - */ - lis3lv02d_joystick_poll(pidev); -} - -static void lis3lv02d_joystick_close(struct input_polled_dev *pidev) -{ - atomic_set(&lis3_dev.wake_thread, 0); - if (lis3_dev.pm_dev) - pm_runtime_put(lis3_dev.pm_dev); -} - -static irqreturn_t lis302dl_interrupt(int irq, void *dummy) -{ - if (!test_bit(0, &lis3_dev.misc_opened)) - goto out; - - /* - * Be careful: on some HP laptops the bios force DD when on battery and - * the lid is closed. This leads to interrupts as soon as a little move - * is done. - */ - atomic_inc(&lis3_dev.count); - - wake_up_interruptible(&lis3_dev.misc_wait); - kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN); -out: - if (atomic_read(&lis3_dev.wake_thread)) - return IRQ_WAKE_THREAD; - return IRQ_HANDLED; -} - -static void lis302dl_interrupt_handle_click(struct lis3lv02d *lis3) -{ - struct input_dev *dev = lis3->idev->input; - u8 click_src; - - mutex_lock(&lis3->mutex); - lis3->read(lis3, CLICK_SRC, &click_src); - - if (click_src & CLICK_SINGLE_X) { - input_report_key(dev, lis3->mapped_btns[0], 1); - input_report_key(dev, lis3->mapped_btns[0], 0); - } - - if (click_src & CLICK_SINGLE_Y) { - input_report_key(dev, lis3->mapped_btns[1], 1); - input_report_key(dev, lis3->mapped_btns[1], 0); - } - - if (click_src & CLICK_SINGLE_Z) { - input_report_key(dev, lis3->mapped_btns[2], 1); - input_report_key(dev, lis3->mapped_btns[2], 0); - } - input_sync(dev); - mutex_unlock(&lis3->mutex); -} - -static inline void lis302dl_data_ready(struct lis3lv02d *lis3, int index) -{ - int dummy; - - /* Dummy read to ack interrupt */ - lis3lv02d_get_xyz(lis3, &dummy, &dummy, &dummy); - lis3->data_ready_count[index]++; -} - -static irqreturn_t lis302dl_interrupt_thread1_8b(int irq, void *data) -{ - struct lis3lv02d *lis3 = data; - u8 irq_cfg = lis3->irq_cfg & LIS3_IRQ1_MASK; - - if (irq_cfg == LIS3_IRQ1_CLICK) - lis302dl_interrupt_handle_click(lis3); - else if (unlikely(irq_cfg == LIS3_IRQ1_DATA_READY)) - lis302dl_data_ready(lis3, IRQ_LINE0); - else - lis3lv02d_joystick_poll(lis3->idev); - - return IRQ_HANDLED; -} - -static irqreturn_t lis302dl_interrupt_thread2_8b(int irq, void *data) -{ - struct lis3lv02d *lis3 = data; - u8 irq_cfg = lis3->irq_cfg & LIS3_IRQ2_MASK; - - if (irq_cfg == LIS3_IRQ2_CLICK) - lis302dl_interrupt_handle_click(lis3); - else if (unlikely(irq_cfg == LIS3_IRQ2_DATA_READY)) - lis302dl_data_ready(lis3, IRQ_LINE1); - else - lis3lv02d_joystick_poll(lis3->idev); - - return IRQ_HANDLED; -} - -static int lis3lv02d_misc_open(struct inode *inode, struct file *file) -{ - if (test_and_set_bit(0, &lis3_dev.misc_opened)) - return -EBUSY; /* already open */ - - if (lis3_dev.pm_dev) - pm_runtime_get_sync(lis3_dev.pm_dev); - - atomic_set(&lis3_dev.count, 0); - return 0; -} - -static int lis3lv02d_misc_release(struct inode *inode, struct file *file) -{ - fasync_helper(-1, file, 0, &lis3_dev.async_queue); - clear_bit(0, &lis3_dev.misc_opened); /* release the device */ - if (lis3_dev.pm_dev) - pm_runtime_put(lis3_dev.pm_dev); - return 0; -} - -static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf, - size_t count, loff_t *pos) -{ - DECLARE_WAITQUEUE(wait, current); - u32 data; - unsigned char byte_data; - ssize_t retval = 1; - - if (count < 1) - return -EINVAL; - - add_wait_queue(&lis3_dev.misc_wait, &wait); - while (true) { - set_current_state(TASK_INTERRUPTIBLE); - data = atomic_xchg(&lis3_dev.count, 0); - if (data) - break; - - if (file->f_flags & O_NONBLOCK) { - retval = -EAGAIN; - goto out; - } - - if (signal_pending(current)) { - retval = -ERESTARTSYS; - goto out; - } - - schedule(); - } - - if (data < 255) - byte_data = data; - else - byte_data = 255; - - /* make sure we are not going into copy_to_user() with - * TASK_INTERRUPTIBLE state */ - set_current_state(TASK_RUNNING); - if (copy_to_user(buf, &byte_data, sizeof(byte_data))) - retval = -EFAULT; - -out: - __set_current_state(TASK_RUNNING); - remove_wait_queue(&lis3_dev.misc_wait, &wait); - - return retval; -} - -static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) -{ - poll_wait(file, &lis3_dev.misc_wait, wait); - if (atomic_read(&lis3_dev.count)) - return POLLIN | POLLRDNORM; - return 0; -} - -static int lis3lv02d_misc_fasync(int fd, struct file *file, int on) -{ - return fasync_helper(fd, file, on, &lis3_dev.async_queue); -} - -static const struct file_operations lis3lv02d_misc_fops = { - .owner = THIS_MODULE, - .llseek = no_llseek, - .read = lis3lv02d_misc_read, - .open = lis3lv02d_misc_open, - .release = lis3lv02d_misc_release, - .poll = lis3lv02d_misc_poll, - .fasync = lis3lv02d_misc_fasync, -}; - -static struct miscdevice lis3lv02d_misc_device = { - .minor = MISC_DYNAMIC_MINOR, - .name = "freefall", - .fops = &lis3lv02d_misc_fops, -}; - -int lis3lv02d_joystick_enable(void) -{ - struct input_dev *input_dev; - int err; - int max_val, fuzz, flat; - int btns[] = {BTN_X, BTN_Y, BTN_Z}; - - if (lis3_dev.idev) - return -EINVAL; - - lis3_dev.idev = input_allocate_polled_device(); - if (!lis3_dev.idev) - return -ENOMEM; - - lis3_dev.idev->poll = lis3lv02d_joystick_poll; - lis3_dev.idev->open = lis3lv02d_joystick_open; - lis3_dev.idev->close = lis3lv02d_joystick_close; - lis3_dev.idev->poll_interval = MDPS_POLL_INTERVAL; - lis3_dev.idev->poll_interval_min = MDPS_POLL_MIN; - lis3_dev.idev->poll_interval_max = MDPS_POLL_MAX; - input_dev = lis3_dev.idev->input; - - input_dev->name = "ST LIS3LV02DL Accelerometer"; - input_dev->phys = DRIVER_NAME "/input0"; - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0; - input_dev->dev.parent = &lis3_dev.pdev->dev; - - set_bit(EV_ABS, input_dev->evbit); - max_val = (lis3_dev.mdps_max_val * lis3_dev.scale) / LIS3_ACCURACY; - if (lis3_dev.whoami == WAI_12B) { - fuzz = LIS3_DEFAULT_FUZZ_12B; - flat = LIS3_DEFAULT_FLAT_12B; - } else { - fuzz = LIS3_DEFAULT_FUZZ_8B; - flat = LIS3_DEFAULT_FLAT_8B; - } - fuzz = (fuzz * lis3_dev.scale) / LIS3_ACCURACY; - flat = (flat * lis3_dev.scale) / LIS3_ACCURACY; - - input_set_abs_params(input_dev, ABS_X, -max_val, max_val, fuzz, flat); - input_set_abs_params(input_dev, ABS_Y, -max_val, max_val, fuzz, flat); - input_set_abs_params(input_dev, ABS_Z, -max_val, max_val, fuzz, flat); - - lis3_dev.mapped_btns[0] = lis3lv02d_get_axis(abs(lis3_dev.ac.x), btns); - lis3_dev.mapped_btns[1] = lis3lv02d_get_axis(abs(lis3_dev.ac.y), btns); - lis3_dev.mapped_btns[2] = lis3lv02d_get_axis(abs(lis3_dev.ac.z), btns); - - err = input_register_polled_device(lis3_dev.idev); - if (err) { - input_free_polled_device(lis3_dev.idev); - lis3_dev.idev = NULL; - } - - return err; -} -EXPORT_SYMBOL_GPL(lis3lv02d_joystick_enable); - -void lis3lv02d_joystick_disable(void) -{ - if (lis3_dev.irq) - free_irq(lis3_dev.irq, &lis3_dev); - if (lis3_dev.pdata && lis3_dev.pdata->irq2) - free_irq(lis3_dev.pdata->irq2, &lis3_dev); - - if (!lis3_dev.idev) - return; - - if (lis3_dev.irq) - misc_deregister(&lis3lv02d_misc_device); - input_unregister_polled_device(lis3_dev.idev); - input_free_polled_device(lis3_dev.idev); - lis3_dev.idev = NULL; -} -EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable); - -/* Sysfs stuff */ -static void lis3lv02d_sysfs_poweron(struct lis3lv02d *lis3) -{ - /* - * SYSFS functions are fast visitors so put-call - * immediately after the get-call. However, keep - * chip running for a while and schedule delayed - * suspend. This way periodic sysfs calls doesn't - * suffer from relatively long power up time. - */ - - if (lis3->pm_dev) { - pm_runtime_get_sync(lis3->pm_dev); - pm_runtime_put_noidle(lis3->pm_dev); - pm_schedule_suspend(lis3->pm_dev, LIS3_SYSFS_POWERDOWN_DELAY); - } -} - -static ssize_t lis3lv02d_selftest_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - s16 values[3]; - - static const char ok[] = "OK"; - static const char fail[] = "FAIL"; - static const char irq[] = "FAIL_IRQ"; - const char *res; - - lis3lv02d_sysfs_poweron(&lis3_dev); - switch (lis3lv02d_selftest(&lis3_dev, values)) { - case SELFTEST_FAIL: - res = fail; - break; - case SELFTEST_IRQ: - res = irq; - break; - case SELFTEST_OK: - default: - res = ok; - break; - } - return sprintf(buf, "%s %d %d %d\n", res, - values[0], values[1], values[2]); -} - -static ssize_t lis3lv02d_position_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - int x, y, z; - - lis3lv02d_sysfs_poweron(&lis3_dev); - mutex_lock(&lis3_dev.mutex); - lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z); - mutex_unlock(&lis3_dev.mutex); - return sprintf(buf, "(%d,%d,%d)\n", x, y, z); -} - -static ssize_t lis3lv02d_rate_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - lis3lv02d_sysfs_poweron(&lis3_dev); - return sprintf(buf, "%d\n", lis3lv02d_get_odr()); -} - -static ssize_t lis3lv02d_rate_set(struct device *dev, - struct device_attribute *attr, const char *buf, - size_t count) -{ - unsigned long rate; - - if (strict_strtoul(buf, 0, &rate)) - return -EINVAL; - - lis3lv02d_sysfs_poweron(&lis3_dev); - if (lis3lv02d_set_odr(rate)) - return -EINVAL; - - return count; -} - -static DEVICE_ATTR(selftest, S_IRUSR, lis3lv02d_selftest_show, NULL); -static DEVICE_ATTR(position, S_IRUGO, lis3lv02d_position_show, NULL); -static DEVICE_ATTR(rate, S_IRUGO | S_IWUSR, lis3lv02d_rate_show, - lis3lv02d_rate_set); - -static struct attribute *lis3lv02d_attributes[] = { - &dev_attr_selftest.attr, - &dev_attr_position.attr, - &dev_attr_rate.attr, - NULL -}; - -static struct attribute_group lis3lv02d_attribute_group = { - .attrs = lis3lv02d_attributes -}; - - -static int lis3lv02d_add_fs(struct lis3lv02d *lis3) -{ - lis3->pdev = platform_device_register_simple(DRIVER_NAME, -1, NULL, 0); - if (IS_ERR(lis3->pdev)) - return PTR_ERR(lis3->pdev); - - return sysfs_create_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group); -} - -int lis3lv02d_remove_fs(struct lis3lv02d *lis3) -{ - sysfs_remove_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group); - platform_device_unregister(lis3->pdev); - if (lis3->pm_dev) { - /* Barrier after the sysfs remove */ - pm_runtime_barrier(lis3->pm_dev); - - /* SYSFS may have left chip running. Turn off if necessary */ - if (!pm_runtime_suspended(lis3->pm_dev)) - lis3lv02d_poweroff(&lis3_dev); - - pm_runtime_disable(lis3->pm_dev); - pm_runtime_set_suspended(lis3->pm_dev); - } - kfree(lis3->reg_cache); - return 0; -} -EXPORT_SYMBOL_GPL(lis3lv02d_remove_fs); - -static void lis3lv02d_8b_configure(struct lis3lv02d *dev, - struct lis3lv02d_platform_data *p) -{ - int err; - int ctrl2 = p->hipass_ctrl; - - if (p->click_flags) { - dev->write(dev, CLICK_CFG, p->click_flags); - dev->write(dev, CLICK_TIMELIMIT, p->click_time_limit); - dev->write(dev, CLICK_LATENCY, p->click_latency); - dev->write(dev, CLICK_WINDOW, p->click_window); - dev->write(dev, CLICK_THSZ, p->click_thresh_z & 0xf); - dev->write(dev, CLICK_THSY_X, - (p->click_thresh_x & 0xf) | - (p->click_thresh_y << 4)); - - if (dev->idev) { - struct input_dev *input_dev = lis3_dev.idev->input; - input_set_capability(input_dev, EV_KEY, BTN_X); - input_set_capability(input_dev, EV_KEY, BTN_Y); - input_set_capability(input_dev, EV_KEY, BTN_Z); - } - } - - if (p->wakeup_flags) { - dev->write(dev, FF_WU_CFG_1, p->wakeup_flags); - dev->write(dev, FF_WU_THS_1, p->wakeup_thresh & 0x7f); - /* pdata value + 1 to keep this backward compatible*/ - dev->write(dev, FF_WU_DURATION_1, p->duration1 + 1); - ctrl2 ^= HP_FF_WU1; /* Xor to keep compatible with old pdata*/ - } - - if (p->wakeup_flags2) { - dev->write(dev, FF_WU_CFG_2, p->wakeup_flags2); - dev->write(dev, FF_WU_THS_2, p->wakeup_thresh2 & 0x7f); - /* pdata value + 1 to keep this backward compatible*/ - dev->write(dev, FF_WU_DURATION_2, p->duration2 + 1); - ctrl2 ^= HP_FF_WU2; /* Xor to keep compatible with old pdata*/ - } - /* Configure hipass filters */ - dev->write(dev, CTRL_REG2, ctrl2); - - if (p->irq2) { - err = request_threaded_irq(p->irq2, - NULL, - lis302dl_interrupt_thread2_8b, - IRQF_TRIGGER_RISING | IRQF_ONESHOT | - (p->irq_flags2 & IRQF_TRIGGER_MASK), - DRIVER_NAME, &lis3_dev); - if (err < 0) - pr_err("No second IRQ. Limited functionality\n"); - } -} - -/* - * Initialise the accelerometer and the various subsystems. - * Should be rather independent of the bus system. - */ -int lis3lv02d_init_device(struct lis3lv02d *dev) -{ - int err; - irq_handler_t thread_fn; - int irq_flags = 0; - - dev->whoami = lis3lv02d_read_8(dev, WHO_AM_I); - - switch (dev->whoami) { - case WAI_12B: - pr_info("12 bits sensor found\n"); - dev->read_data = lis3lv02d_read_12; - dev->mdps_max_val = 2048; - dev->pwron_delay = LIS3_PWRON_DELAY_WAI_12B; - dev->odrs = lis3_12_rates; - dev->odr_mask = CTRL1_DF0 | CTRL1_DF1; - dev->scale = LIS3_SENSITIVITY_12B; - dev->regs = lis3_wai12_regs; - dev->regs_size = ARRAY_SIZE(lis3_wai12_regs); - break; - case WAI_8B: - pr_info("8 bits sensor found\n"); - dev->read_data = lis3lv02d_read_8; - dev->mdps_max_val = 128; - dev->pwron_delay = LIS3_PWRON_DELAY_WAI_8B; - dev->odrs = lis3_8_rates; - dev->odr_mask = CTRL1_DR; - dev->scale = LIS3_SENSITIVITY_8B; - dev->regs = lis3_wai8_regs; - dev->regs_size = ARRAY_SIZE(lis3_wai8_regs); - break; - case WAI_3DC: - pr_info("8 bits 3DC sensor found\n"); - dev->read_data = lis3lv02d_read_8; - dev->mdps_max_val = 128; - dev->pwron_delay = LIS3_PWRON_DELAY_WAI_8B; - dev->odrs = lis3_3dc_rates; - dev->odr_mask = CTRL1_ODR0|CTRL1_ODR1|CTRL1_ODR2|CTRL1_ODR3; - dev->scale = LIS3_SENSITIVITY_8B; - break; - default: - pr_err("unknown sensor type 0x%X\n", dev->whoami); - return -EINVAL; - } - - dev->reg_cache = kzalloc(max(sizeof(lis3_wai8_regs), - sizeof(lis3_wai12_regs)), GFP_KERNEL); - - if (dev->reg_cache == NULL) { - printk(KERN_ERR DRIVER_NAME "out of memory\n"); - return -ENOMEM; - } - - mutex_init(&dev->mutex); - atomic_set(&dev->wake_thread, 0); - - lis3lv02d_add_fs(dev); - lis3lv02d_poweron(dev); - - if (dev->pm_dev) { - pm_runtime_set_active(dev->pm_dev); - pm_runtime_enable(dev->pm_dev); - } - - if (lis3lv02d_joystick_enable()) - pr_err("joystick initialization failed\n"); - - /* passing in platform specific data is purely optional and only - * used by the SPI transport layer at the moment */ - if (dev->pdata) { - struct lis3lv02d_platform_data *p = dev->pdata; - - if (dev->whoami == WAI_8B) - lis3lv02d_8b_configure(dev, p); - - irq_flags = p->irq_flags1 & IRQF_TRIGGER_MASK; - - dev->irq_cfg = p->irq_cfg; - if (p->irq_cfg) - dev->write(dev, CTRL_REG3, p->irq_cfg); - - if (p->default_rate) - lis3lv02d_set_odr(p->default_rate); - } - - /* bail if we did not get an IRQ from the bus layer */ - if (!dev->irq) { - pr_debug("No IRQ. Disabling /dev/freefall\n"); - goto out; - } - - /* - * The sensor can generate interrupts for free-fall and direction - * detection (distinguishable with FF_WU_SRC and DD_SRC) but to keep - * the things simple and _fast_ we activate it only for free-fall, so - * no need to read register (very slow with ACPI). For the same reason, - * we forbid shared interrupts. - * - * IRQF_TRIGGER_RISING seems pointless on HP laptops because the - * io-apic is not configurable (and generates a warning) but I keep it - * in case of support for other hardware. - */ - if (dev->pdata && dev->whoami == WAI_8B) - thread_fn = lis302dl_interrupt_thread1_8b; - else - thread_fn = NULL; - - err = request_threaded_irq(dev->irq, lis302dl_interrupt, - thread_fn, - IRQF_TRIGGER_RISING | IRQF_ONESHOT | - irq_flags, - DRIVER_NAME, &lis3_dev); - - if (err < 0) { - pr_err("Cannot get IRQ\n"); - goto out; - } - - if (misc_register(&lis3lv02d_misc_device)) - pr_err("misc_register failed\n"); -out: - return 0; -} -EXPORT_SYMBOL_GPL(lis3lv02d_init_device); - -MODULE_DESCRIPTION("ST LIS3LV02Dx three-axis digital accelerometer driver"); -MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek"); -MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/lis3lv02d.h b/drivers/hwmon/lis3lv02d.h deleted file mode 100644 index a1939589eb2c..000000000000 --- a/drivers/hwmon/lis3lv02d.h +++ /dev/null @@ -1,291 +0,0 @@ -/* - * lis3lv02d.h - ST LIS3LV02DL accelerometer driver - * - * Copyright (C) 2007-2008 Yan Burman - * Copyright (C) 2008-2009 Eric Piel - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ -#include <linux/platform_device.h> -#include <linux/input-polldev.h> -#include <linux/regulator/consumer.h> - -/* - * This driver tries to support the "digital" accelerometer chips from - * STMicroelectronics such as LIS3LV02DL, LIS302DL, LIS3L02DQ, LIS331DL, - * LIS35DE, or LIS202DL. They are very similar in terms of programming, with - * almost the same registers. In addition to differing on physical properties, - * they differ on the number of axes (2/3), precision (8/12 bits), and special - * features (freefall detection, click...). Unfortunately, not all the - * differences can be probed via a register. - * They can be connected either via I²C or SPI. - */ - -#include <linux/lis3lv02d.h> - -enum lis3_reg { - WHO_AM_I = 0x0F, - OFFSET_X = 0x16, - OFFSET_Y = 0x17, - OFFSET_Z = 0x18, - GAIN_X = 0x19, - GAIN_Y = 0x1A, - GAIN_Z = 0x1B, - CTRL_REG1 = 0x20, - CTRL_REG2 = 0x21, - CTRL_REG3 = 0x22, - CTRL_REG4 = 0x23, - HP_FILTER_RESET = 0x23, - STATUS_REG = 0x27, - OUTX_L = 0x28, - OUTX_H = 0x29, - OUTX = 0x29, - OUTY_L = 0x2A, - OUTY_H = 0x2B, - OUTY = 0x2B, - OUTZ_L = 0x2C, - OUTZ_H = 0x2D, - OUTZ = 0x2D, -}; - -enum lis302d_reg { - FF_WU_CFG_1 = 0x30, - FF_WU_SRC_1 = 0x31, - FF_WU_THS_1 = 0x32, - FF_WU_DURATION_1 = 0x33, - FF_WU_CFG_2 = 0x34, - FF_WU_SRC_2 = 0x35, - FF_WU_THS_2 = 0x36, - FF_WU_DURATION_2 = 0x37, - CLICK_CFG = 0x38, - CLICK_SRC = 0x39, - CLICK_THSY_X = 0x3B, - CLICK_THSZ = 0x3C, - CLICK_TIMELIMIT = 0x3D, - CLICK_LATENCY = 0x3E, - CLICK_WINDOW = 0x3F, -}; - -enum lis3lv02d_reg { - FF_WU_CFG = 0x30, - FF_WU_SRC = 0x31, - FF_WU_ACK = 0x32, - FF_WU_THS_L = 0x34, - FF_WU_THS_H = 0x35, - FF_WU_DURATION = 0x36, - DD_CFG = 0x38, - DD_SRC = 0x39, - DD_ACK = 0x3A, - DD_THSI_L = 0x3C, - DD_THSI_H = 0x3D, - DD_THSE_L = 0x3E, - DD_THSE_H = 0x3F, -}; - -enum lis3_who_am_i { - WAI_3DC = 0x33, /* 8 bits: LIS3DC, HP3DC */ - WAI_12B = 0x3A, /* 12 bits: LIS3LV02D[LQ]... */ - WAI_8B = 0x3B, /* 8 bits: LIS[23]02D[LQ]... */ - WAI_6B = 0x52, /* 6 bits: LIS331DLF - not supported */ -}; - -enum lis3lv02d_ctrl1_12b { - CTRL1_Xen = 0x01, - CTRL1_Yen = 0x02, - CTRL1_Zen = 0x04, - CTRL1_ST = 0x08, - CTRL1_DF0 = 0x10, - CTRL1_DF1 = 0x20, - CTRL1_PD0 = 0x40, - CTRL1_PD1 = 0x80, -}; - -/* Delta to ctrl1_12b version */ -enum lis3lv02d_ctrl1_8b { - CTRL1_STM = 0x08, - CTRL1_STP = 0x10, - CTRL1_FS = 0x20, - CTRL1_PD = 0x40, - CTRL1_DR = 0x80, -}; - -enum lis3lv02d_ctrl1_3dc { - CTRL1_ODR0 = 0x10, - CTRL1_ODR1 = 0x20, - CTRL1_ODR2 = 0x40, - CTRL1_ODR3 = 0x80, -}; - -enum lis3lv02d_ctrl2 { - CTRL2_DAS = 0x01, - CTRL2_SIM = 0x02, - CTRL2_DRDY = 0x04, - CTRL2_IEN = 0x08, - CTRL2_BOOT = 0x10, - CTRL2_BLE = 0x20, - CTRL2_BDU = 0x40, /* Block Data Update */ - CTRL2_FS = 0x80, /* Full Scale selection */ -}; - -enum lis3lv02d_ctrl4_3dc { - CTRL4_SIM = 0x01, - CTRL4_ST0 = 0x02, - CTRL4_ST1 = 0x04, - CTRL4_FS0 = 0x10, - CTRL4_FS1 = 0x20, -}; - -enum lis302d_ctrl2 { - HP_FF_WU2 = 0x08, - HP_FF_WU1 = 0x04, - CTRL2_BOOT_8B = 0x40, -}; - -enum lis3lv02d_ctrl3 { - CTRL3_CFS0 = 0x01, - CTRL3_CFS1 = 0x02, - CTRL3_FDS = 0x10, - CTRL3_HPFF = 0x20, - CTRL3_HPDD = 0x40, - CTRL3_ECK = 0x80, -}; - -enum lis3lv02d_status_reg { - STATUS_XDA = 0x01, - STATUS_YDA = 0x02, - STATUS_ZDA = 0x04, - STATUS_XYZDA = 0x08, - STATUS_XOR = 0x10, - STATUS_YOR = 0x20, - STATUS_ZOR = 0x40, - STATUS_XYZOR = 0x80, -}; - -enum lis3lv02d_ff_wu_cfg { - FF_WU_CFG_XLIE = 0x01, - FF_WU_CFG_XHIE = 0x02, - FF_WU_CFG_YLIE = 0x04, - FF_WU_CFG_YHIE = 0x08, - FF_WU_CFG_ZLIE = 0x10, - FF_WU_CFG_ZHIE = 0x20, - FF_WU_CFG_LIR = 0x40, - FF_WU_CFG_AOI = 0x80, -}; - -enum lis3lv02d_ff_wu_src { - FF_WU_SRC_XL = 0x01, - FF_WU_SRC_XH = 0x02, - FF_WU_SRC_YL = 0x04, - FF_WU_SRC_YH = 0x08, - FF_WU_SRC_ZL = 0x10, - FF_WU_SRC_ZH = 0x20, - FF_WU_SRC_IA = 0x40, -}; - -enum lis3lv02d_dd_cfg { - DD_CFG_XLIE = 0x01, - DD_CFG_XHIE = 0x02, - DD_CFG_YLIE = 0x04, - DD_CFG_YHIE = 0x08, - DD_CFG_ZLIE = 0x10, - DD_CFG_ZHIE = 0x20, - DD_CFG_LIR = 0x40, - DD_CFG_IEND = 0x80, -}; - -enum lis3lv02d_dd_src { - DD_SRC_XL = 0x01, - DD_SRC_XH = 0x02, - DD_SRC_YL = 0x04, - DD_SRC_YH = 0x08, - DD_SRC_ZL = 0x10, - DD_SRC_ZH = 0x20, - DD_SRC_IA = 0x40, -}; - -enum lis3lv02d_click_src_8b { - CLICK_SINGLE_X = 0x01, - CLICK_DOUBLE_X = 0x02, - CLICK_SINGLE_Y = 0x04, - CLICK_DOUBLE_Y = 0x08, - CLICK_SINGLE_Z = 0x10, - CLICK_DOUBLE_Z = 0x20, - CLICK_IA = 0x40, -}; - -enum lis3lv02d_reg_state { - LIS3_REG_OFF = 0x00, - LIS3_REG_ON = 0x01, -}; - -union axis_conversion { - struct { - int x, y, z; - }; - int as_array[3]; - -}; - -struct lis3lv02d { - void *bus_priv; /* used by the bus layer only */ - struct device *pm_dev; /* for pm_runtime purposes */ - int (*init) (struct lis3lv02d *lis3); - int (*write) (struct lis3lv02d *lis3, int reg, u8 val); - int (*read) (struct lis3lv02d *lis3, int reg, u8 *ret); - int (*blkread) (struct lis3lv02d *lis3, int reg, int len, u8 *ret); - int (*reg_ctrl) (struct lis3lv02d *lis3, bool state); - - int *odrs; /* Supported output data rates */ - u8 *regs; /* Regs to store / restore */ - int regs_size; - u8 *reg_cache; - bool regs_stored; - u8 odr_mask; /* ODR bit mask */ - u8 whoami; /* indicates measurement precision */ - s16 (*read_data) (struct lis3lv02d *lis3, int reg); - int mdps_max_val; - int pwron_delay; - int scale; /* - * relationship between 1 LBS and mG - * (1/1000th of earth gravity) - */ - - struct input_polled_dev *idev; /* input device */ - struct platform_device *pdev; /* platform device */ - struct regulator_bulk_data regulators[2]; - atomic_t count; /* interrupt count after last read */ - union axis_conversion ac; /* hw -> logical axis */ - int mapped_btns[3]; - - u32 irq; /* IRQ number */ - struct fasync_struct *async_queue; /* queue for the misc device */ - wait_queue_head_t misc_wait; /* Wait queue for the misc device */ - unsigned long misc_opened; /* bit0: whether the device is open */ - int data_ready_count[2]; - atomic_t wake_thread; - unsigned char irq_cfg; - - struct lis3lv02d_platform_data *pdata; /* for passing board config */ - struct mutex mutex; /* Serialize poll and selftest */ -}; - -int lis3lv02d_init_device(struct lis3lv02d *lis3); -int lis3lv02d_joystick_enable(void); -void lis3lv02d_joystick_disable(void); -void lis3lv02d_poweroff(struct lis3lv02d *lis3); -void lis3lv02d_poweron(struct lis3lv02d *lis3); -int lis3lv02d_remove_fs(struct lis3lv02d *lis3); - -extern struct lis3lv02d lis3_dev; diff --git a/drivers/hwmon/lis3lv02d_i2c.c b/drivers/hwmon/lis3lv02d_i2c.c deleted file mode 100644 index 8853afce85ce..000000000000 --- a/drivers/hwmon/lis3lv02d_i2c.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * drivers/hwmon/lis3lv02d_i2c.c - * - * Implements I2C interface for lis3lv02d (STMicroelectronics) accelerometer. - * Driver is based on corresponding SPI driver written by Daniel Mack - * (lis3lv02d_spi.c (C) 2009 Daniel Mack <daniel@caiaq.de> ). - * - * Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). - * - * Contact: Samu Onkalo <samu.p.onkalo@nokia.com> - * - * 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, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/i2c.h> -#include <linux/pm_runtime.h> -#include <linux/delay.h> -#include "lis3lv02d.h" - -#define DRV_NAME "lis3lv02d_i2c" - -static const char reg_vdd[] = "Vdd"; -static const char reg_vdd_io[] = "Vdd_IO"; - -static int lis3_reg_ctrl(struct lis3lv02d *lis3, bool state) -{ - int ret; - if (state == LIS3_REG_OFF) { - ret = regulator_bulk_disable(ARRAY_SIZE(lis3->regulators), - lis3->regulators); - } else { - ret = regulator_bulk_enable(ARRAY_SIZE(lis3->regulators), - lis3->regulators); - /* Chip needs time to wakeup. Not mentioned in datasheet */ - usleep_range(10000, 20000); - } - return ret; -} - -static inline s32 lis3_i2c_write(struct lis3lv02d *lis3, int reg, u8 value) -{ - struct i2c_client *c = lis3->bus_priv; - return i2c_smbus_write_byte_data(c, reg, value); -} - -static inline s32 lis3_i2c_read(struct lis3lv02d *lis3, int reg, u8 *v) -{ - struct i2c_client *c = lis3->bus_priv; - *v = i2c_smbus_read_byte_data(c, reg); - return 0; -} - -static inline s32 lis3_i2c_blockread(struct lis3lv02d *lis3, int reg, int len, - u8 *v) -{ - struct i2c_client *c = lis3->bus_priv; - reg |= (1 << 7); /* 7th bit enables address auto incrementation */ - return i2c_smbus_read_i2c_block_data(c, reg, len, v); -} - -static int lis3_i2c_init(struct lis3lv02d *lis3) -{ - u8 reg; - int ret; - - if (lis3->reg_ctrl) - lis3_reg_ctrl(lis3, LIS3_REG_ON); - - lis3->read(lis3, WHO_AM_I, ®); - if (reg != lis3->whoami) - printk(KERN_ERR "lis3: power on failure\n"); - - /* power up the device */ - ret = lis3->read(lis3, CTRL_REG1, ®); - if (ret < 0) - return ret; - - reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen; - return lis3->write(lis3, CTRL_REG1, reg); -} - -/* Default axis mapping but it can be overwritten by platform data */ -static union axis_conversion lis3lv02d_axis_map = - { .as_array = { LIS3_DEV_X, LIS3_DEV_Y, LIS3_DEV_Z } }; - -static int __devinit lis3lv02d_i2c_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - int ret = 0; - struct lis3lv02d_platform_data *pdata = client->dev.platform_data; - - if (pdata) { - /* Regulator control is optional */ - if (pdata->driver_features & LIS3_USE_REGULATOR_CTRL) - lis3_dev.reg_ctrl = lis3_reg_ctrl; - - if ((pdata->driver_features & LIS3_USE_BLOCK_READ) && - (i2c_check_functionality(client->adapter, - I2C_FUNC_SMBUS_I2C_BLOCK))) - lis3_dev.blkread = lis3_i2c_blockread; - - if (pdata->axis_x) - lis3lv02d_axis_map.x = pdata->axis_x; - - if (pdata->axis_y) - lis3lv02d_axis_map.y = pdata->axis_y; - - if (pdata->axis_z) - lis3lv02d_axis_map.z = pdata->axis_z; - - if (pdata->setup_resources) - ret = pdata->setup_resources(); - - if (ret) - goto fail; - } - - if (lis3_dev.reg_ctrl) { - lis3_dev.regulators[0].supply = reg_vdd; - lis3_dev.regulators[1].supply = reg_vdd_io; - ret = regulator_bulk_get(&client->dev, - ARRAY_SIZE(lis3_dev.regulators), - lis3_dev.regulators); - if (ret < 0) - goto fail; - } - - lis3_dev.pdata = pdata; - lis3_dev.bus_priv = client; - lis3_dev.init = lis3_i2c_init; - lis3_dev.read = lis3_i2c_read; - lis3_dev.write = lis3_i2c_write; - lis3_dev.irq = client->irq; - lis3_dev.ac = lis3lv02d_axis_map; - lis3_dev.pm_dev = &client->dev; - - i2c_set_clientdata(client, &lis3_dev); - - /* Provide power over the init call */ - if (lis3_dev.reg_ctrl) - lis3_reg_ctrl(&lis3_dev, LIS3_REG_ON); - - ret = lis3lv02d_init_device(&lis3_dev); - - if (lis3_dev.reg_ctrl) - lis3_reg_ctrl(&lis3_dev, LIS3_REG_OFF); - - if (ret == 0) - return 0; -fail: - if (pdata && pdata->release_resources) - pdata->release_resources(); - return ret; -} - -static int __devexit lis3lv02d_i2c_remove(struct i2c_client *client) -{ - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - struct lis3lv02d_platform_data *pdata = client->dev.platform_data; - - if (pdata && pdata->release_resources) - pdata->release_resources(); - - lis3lv02d_joystick_disable(); - lis3lv02d_remove_fs(&lis3_dev); - - if (lis3_dev.reg_ctrl) - regulator_bulk_free(ARRAY_SIZE(lis3->regulators), - lis3_dev.regulators); - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int lis3lv02d_i2c_suspend(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - if (!lis3->pdata || !lis3->pdata->wakeup_flags) - lis3lv02d_poweroff(lis3); - return 0; -} - -static int lis3lv02d_i2c_resume(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - /* - * pm_runtime documentation says that devices should always - * be powered on at resume. Pm_runtime turns them off after system - * wide resume is complete. - */ - if (!lis3->pdata || !lis3->pdata->wakeup_flags || - pm_runtime_suspended(dev)) - lis3lv02d_poweron(lis3); - - return 0; -} -#endif /* CONFIG_PM_SLEEP */ - -#ifdef CONFIG_PM_RUNTIME -static int lis3_i2c_runtime_suspend(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - lis3lv02d_poweroff(lis3); - return 0; -} - -static int lis3_i2c_runtime_resume(struct device *dev) -{ - struct i2c_client *client = container_of(dev, struct i2c_client, dev); - struct lis3lv02d *lis3 = i2c_get_clientdata(client); - - lis3lv02d_poweron(lis3); - return 0; -} -#endif /* CONFIG_PM_RUNTIME */ - -static const struct i2c_device_id lis3lv02d_id[] = { - {"lis3lv02d", 0 }, - {} -}; - -MODULE_DEVICE_TABLE(i2c, lis3lv02d_id); - -static const struct dev_pm_ops lis3_pm_ops = { - SET_SYSTEM_SLEEP_PM_OPS(lis3lv02d_i2c_suspend, - lis3lv02d_i2c_resume) - SET_RUNTIME_PM_OPS(lis3_i2c_runtime_suspend, - lis3_i2c_runtime_resume, - NULL) -}; - -static struct i2c_driver lis3lv02d_i2c_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - .pm = &lis3_pm_ops, - }, - .probe = lis3lv02d_i2c_probe, - .remove = __devexit_p(lis3lv02d_i2c_remove), - .id_table = lis3lv02d_id, -}; - -static int __init lis3lv02d_init(void) -{ - return i2c_add_driver(&lis3lv02d_i2c_driver); -} - -static void __exit lis3lv02d_exit(void) -{ - i2c_del_driver(&lis3lv02d_i2c_driver); -} - -MODULE_AUTHOR("Nokia Corporation"); -MODULE_DESCRIPTION("lis3lv02d I2C interface"); -MODULE_LICENSE("GPL"); - -module_init(lis3lv02d_init); -module_exit(lis3lv02d_exit); diff --git a/drivers/hwmon/lis3lv02d_spi.c b/drivers/hwmon/lis3lv02d_spi.c deleted file mode 100644 index c1f8a8fbf694..000000000000 --- a/drivers/hwmon/lis3lv02d_spi.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * lis3lv02d_spi - SPI glue layer for lis3lv02d - * - * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de> - * - * 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 - * publishhed by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/err.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/workqueue.h> -#include <linux/spi/spi.h> -#include <linux/pm.h> - -#include "lis3lv02d.h" - -#define DRV_NAME "lis3lv02d_spi" -#define LIS3_SPI_READ 0x80 - -static int lis3_spi_read(struct lis3lv02d *lis3, int reg, u8 *v) -{ - struct spi_device *spi = lis3->bus_priv; - int ret = spi_w8r8(spi, reg | LIS3_SPI_READ); - if (ret < 0) - return -EINVAL; - - *v = (u8) ret; - return 0; -} - -static int lis3_spi_write(struct lis3lv02d *lis3, int reg, u8 val) -{ - u8 tmp[2] = { reg, val }; - struct spi_device *spi = lis3->bus_priv; - return spi_write(spi, tmp, sizeof(tmp)); -} - -static int lis3_spi_init(struct lis3lv02d *lis3) -{ - u8 reg; - int ret; - - /* power up the device */ - ret = lis3->read(lis3, CTRL_REG1, ®); - if (ret < 0) - return ret; - - reg |= CTRL1_PD0 | CTRL1_Xen | CTRL1_Yen | CTRL1_Zen; - return lis3->write(lis3, CTRL_REG1, reg); -} - -static union axis_conversion lis3lv02d_axis_normal = - { .as_array = { 1, 2, 3 } }; - -static int __devinit lis302dl_spi_probe(struct spi_device *spi) -{ - int ret; - - spi->bits_per_word = 8; - spi->mode = SPI_MODE_0; - ret = spi_setup(spi); - if (ret < 0) - return ret; - - lis3_dev.bus_priv = spi; - lis3_dev.init = lis3_spi_init; - lis3_dev.read = lis3_spi_read; - lis3_dev.write = lis3_spi_write; - lis3_dev.irq = spi->irq; - lis3_dev.ac = lis3lv02d_axis_normal; - lis3_dev.pdata = spi->dev.platform_data; - spi_set_drvdata(spi, &lis3_dev); - - return lis3lv02d_init_device(&lis3_dev); -} - -static int __devexit lis302dl_spi_remove(struct spi_device *spi) -{ - struct lis3lv02d *lis3 = spi_get_drvdata(spi); - lis3lv02d_joystick_disable(); - lis3lv02d_poweroff(lis3); - - return lis3lv02d_remove_fs(&lis3_dev); -} - -#ifdef CONFIG_PM_SLEEP -static int lis3lv02d_spi_suspend(struct device *dev) -{ - struct spi_device *spi = to_spi_device(dev); - struct lis3lv02d *lis3 = spi_get_drvdata(spi); - - if (!lis3->pdata || !lis3->pdata->wakeup_flags) - lis3lv02d_poweroff(&lis3_dev); - - return 0; -} - -static int lis3lv02d_spi_resume(struct device *dev) -{ - struct spi_device *spi = to_spi_device(dev); - struct lis3lv02d *lis3 = spi_get_drvdata(spi); - - if (!lis3->pdata || !lis3->pdata->wakeup_flags) - lis3lv02d_poweron(lis3); - - return 0; -} -#endif - -static SIMPLE_DEV_PM_OPS(lis3lv02d_spi_pm, lis3lv02d_spi_suspend, - lis3lv02d_spi_resume); - -static struct spi_driver lis302dl_spi_driver = { - .driver = { - .name = DRV_NAME, - .owner = THIS_MODULE, - .pm = &lis3lv02d_spi_pm, - }, - .probe = lis302dl_spi_probe, - .remove = __devexit_p(lis302dl_spi_remove), -}; - -static int __init lis302dl_init(void) -{ - return spi_register_driver(&lis302dl_spi_driver); -} - -static void __exit lis302dl_exit(void) -{ - spi_unregister_driver(&lis302dl_spi_driver); -} - -module_init(lis302dl_init); -module_exit(lis302dl_exit); - -MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>"); -MODULE_DESCRIPTION("lis3lv02d SPI glue layer"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("spi:" DRV_NAME); |