533 lines
15 KiB
C
533 lines
15 KiB
C
/*
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* STMicroelectronics accelerometers driver
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*
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* Copyright 2012-2013 STMicroelectronics Inc.
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*
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* Denis Ciocca <denis.ciocca@st.com>
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*
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* Licensed under the GPL-2.
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/mutex.h>
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#include <linux/interrupt.h>
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#include <linux/i2c.h>
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#include <linux/gpio.h>
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#include <linux/irq.h>
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#include <linux/iio/iio.h>
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#include <linux/iio/sysfs.h>
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#include <linux/iio/trigger.h>
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#include <linux/iio/buffer.h>
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#include <linux/iio/common/st_sensors.h>
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#include "st_accel.h"
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#define ST_ACCEL_NUMBER_DATA_CHANNELS 3
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/* DEFAULT VALUE FOR SENSORS */
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#define ST_ACCEL_DEFAULT_OUT_X_L_ADDR 0x28
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#define ST_ACCEL_DEFAULT_OUT_Y_L_ADDR 0x2a
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#define ST_ACCEL_DEFAULT_OUT_Z_L_ADDR 0x2c
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/* FULLSCALE */
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#define ST_ACCEL_FS_AVL_2G 2
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#define ST_ACCEL_FS_AVL_4G 4
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#define ST_ACCEL_FS_AVL_6G 6
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#define ST_ACCEL_FS_AVL_8G 8
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#define ST_ACCEL_FS_AVL_16G 16
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/* CUSTOM VALUES FOR SENSOR 1 */
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#define ST_ACCEL_1_WAI_EXP 0x33
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#define ST_ACCEL_1_ODR_ADDR 0x20
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#define ST_ACCEL_1_ODR_MASK 0xf0
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#define ST_ACCEL_1_ODR_AVL_1HZ_VAL 0x01
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#define ST_ACCEL_1_ODR_AVL_10HZ_VAL 0x02
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#define ST_ACCEL_1_ODR_AVL_25HZ_VAL 0x03
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#define ST_ACCEL_1_ODR_AVL_50HZ_VAL 0x04
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#define ST_ACCEL_1_ODR_AVL_100HZ_VAL 0x05
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#define ST_ACCEL_1_ODR_AVL_200HZ_VAL 0x06
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#define ST_ACCEL_1_ODR_AVL_400HZ_VAL 0x07
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#define ST_ACCEL_1_ODR_AVL_1600HZ_VAL 0x08
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#define ST_ACCEL_1_FS_ADDR 0x23
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#define ST_ACCEL_1_FS_MASK 0x30
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#define ST_ACCEL_1_FS_AVL_2_VAL 0x00
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#define ST_ACCEL_1_FS_AVL_4_VAL 0x01
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#define ST_ACCEL_1_FS_AVL_8_VAL 0x02
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#define ST_ACCEL_1_FS_AVL_16_VAL 0x03
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#define ST_ACCEL_1_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000)
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#define ST_ACCEL_1_FS_AVL_4_GAIN IIO_G_TO_M_S_2(2000)
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#define ST_ACCEL_1_FS_AVL_8_GAIN IIO_G_TO_M_S_2(4000)
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#define ST_ACCEL_1_FS_AVL_16_GAIN IIO_G_TO_M_S_2(12000)
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#define ST_ACCEL_1_BDU_ADDR 0x23
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#define ST_ACCEL_1_BDU_MASK 0x80
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#define ST_ACCEL_1_DRDY_IRQ_ADDR 0x22
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#define ST_ACCEL_1_DRDY_IRQ_INT1_MASK 0x10
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#define ST_ACCEL_1_DRDY_IRQ_INT2_MASK 0x08
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#define ST_ACCEL_1_MULTIREAD_BIT true
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/* CUSTOM VALUES FOR SENSOR 2 */
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#define ST_ACCEL_2_WAI_EXP 0x32
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#define ST_ACCEL_2_ODR_ADDR 0x20
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#define ST_ACCEL_2_ODR_MASK 0x18
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#define ST_ACCEL_2_ODR_AVL_50HZ_VAL 0x00
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#define ST_ACCEL_2_ODR_AVL_100HZ_VAL 0x01
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#define ST_ACCEL_2_ODR_AVL_400HZ_VAL 0x02
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#define ST_ACCEL_2_ODR_AVL_1000HZ_VAL 0x03
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#define ST_ACCEL_2_PW_ADDR 0x20
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#define ST_ACCEL_2_PW_MASK 0xe0
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#define ST_ACCEL_2_FS_ADDR 0x23
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#define ST_ACCEL_2_FS_MASK 0x30
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#define ST_ACCEL_2_FS_AVL_2_VAL 0X00
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#define ST_ACCEL_2_FS_AVL_4_VAL 0X01
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#define ST_ACCEL_2_FS_AVL_8_VAL 0x03
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#define ST_ACCEL_2_FS_AVL_2_GAIN IIO_G_TO_M_S_2(1000)
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#define ST_ACCEL_2_FS_AVL_4_GAIN IIO_G_TO_M_S_2(2000)
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#define ST_ACCEL_2_FS_AVL_8_GAIN IIO_G_TO_M_S_2(3900)
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#define ST_ACCEL_2_BDU_ADDR 0x23
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#define ST_ACCEL_2_BDU_MASK 0x80
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#define ST_ACCEL_2_DRDY_IRQ_ADDR 0x22
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#define ST_ACCEL_2_DRDY_IRQ_INT1_MASK 0x02
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#define ST_ACCEL_2_DRDY_IRQ_INT2_MASK 0x10
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#define ST_ACCEL_2_MULTIREAD_BIT true
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/* CUSTOM VALUES FOR SENSOR 3 */
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#define ST_ACCEL_3_WAI_EXP 0x40
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#define ST_ACCEL_3_ODR_ADDR 0x20
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#define ST_ACCEL_3_ODR_MASK 0xf0
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#define ST_ACCEL_3_ODR_AVL_3HZ_VAL 0x01
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#define ST_ACCEL_3_ODR_AVL_6HZ_VAL 0x02
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#define ST_ACCEL_3_ODR_AVL_12HZ_VAL 0x03
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#define ST_ACCEL_3_ODR_AVL_25HZ_VAL 0x04
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#define ST_ACCEL_3_ODR_AVL_50HZ_VAL 0x05
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#define ST_ACCEL_3_ODR_AVL_100HZ_VAL 0x06
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#define ST_ACCEL_3_ODR_AVL_200HZ_VAL 0x07
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#define ST_ACCEL_3_ODR_AVL_400HZ_VAL 0x08
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#define ST_ACCEL_3_ODR_AVL_800HZ_VAL 0x09
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#define ST_ACCEL_3_ODR_AVL_1600HZ_VAL 0x0a
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#define ST_ACCEL_3_FS_ADDR 0x24
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#define ST_ACCEL_3_FS_MASK 0x38
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#define ST_ACCEL_3_FS_AVL_2_VAL 0X00
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#define ST_ACCEL_3_FS_AVL_4_VAL 0X01
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#define ST_ACCEL_3_FS_AVL_6_VAL 0x02
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#define ST_ACCEL_3_FS_AVL_8_VAL 0x03
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#define ST_ACCEL_3_FS_AVL_16_VAL 0x04
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#define ST_ACCEL_3_FS_AVL_2_GAIN IIO_G_TO_M_S_2(61)
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#define ST_ACCEL_3_FS_AVL_4_GAIN IIO_G_TO_M_S_2(122)
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#define ST_ACCEL_3_FS_AVL_6_GAIN IIO_G_TO_M_S_2(183)
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#define ST_ACCEL_3_FS_AVL_8_GAIN IIO_G_TO_M_S_2(244)
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#define ST_ACCEL_3_FS_AVL_16_GAIN IIO_G_TO_M_S_2(732)
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#define ST_ACCEL_3_BDU_ADDR 0x20
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#define ST_ACCEL_3_BDU_MASK 0x08
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#define ST_ACCEL_3_DRDY_IRQ_ADDR 0x23
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#define ST_ACCEL_3_DRDY_IRQ_INT1_MASK 0x80
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#define ST_ACCEL_3_DRDY_IRQ_INT2_MASK 0x00
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#define ST_ACCEL_3_IG1_EN_ADDR 0x23
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#define ST_ACCEL_3_IG1_EN_MASK 0x08
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#define ST_ACCEL_3_MULTIREAD_BIT false
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static const struct iio_chan_spec st_accel_12bit_channels[] = {
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ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
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BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
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ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 12, 16,
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ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
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ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
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BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
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ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 12, 16,
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ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
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ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
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BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
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ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 12, 16,
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ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
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IIO_CHAN_SOFT_TIMESTAMP(3)
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};
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static const struct iio_chan_spec st_accel_16bit_channels[] = {
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ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
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BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
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ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16,
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ST_ACCEL_DEFAULT_OUT_X_L_ADDR),
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ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
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BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
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ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16,
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ST_ACCEL_DEFAULT_OUT_Y_L_ADDR),
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ST_SENSORS_LSM_CHANNELS(IIO_ACCEL,
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BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
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ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16,
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ST_ACCEL_DEFAULT_OUT_Z_L_ADDR),
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IIO_CHAN_SOFT_TIMESTAMP(3)
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};
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static const struct st_sensors st_accel_sensors[] = {
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{
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.wai = ST_ACCEL_1_WAI_EXP,
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.sensors_supported = {
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[0] = LIS3DH_ACCEL_DEV_NAME,
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[1] = LSM303DLHC_ACCEL_DEV_NAME,
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[2] = LSM330D_ACCEL_DEV_NAME,
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[3] = LSM330DL_ACCEL_DEV_NAME,
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[4] = LSM330DLC_ACCEL_DEV_NAME,
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},
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.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
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.odr = {
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.addr = ST_ACCEL_1_ODR_ADDR,
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.mask = ST_ACCEL_1_ODR_MASK,
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.odr_avl = {
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{ 1, ST_ACCEL_1_ODR_AVL_1HZ_VAL, },
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{ 10, ST_ACCEL_1_ODR_AVL_10HZ_VAL, },
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{ 25, ST_ACCEL_1_ODR_AVL_25HZ_VAL, },
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{ 50, ST_ACCEL_1_ODR_AVL_50HZ_VAL, },
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{ 100, ST_ACCEL_1_ODR_AVL_100HZ_VAL, },
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{ 200, ST_ACCEL_1_ODR_AVL_200HZ_VAL, },
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{ 400, ST_ACCEL_1_ODR_AVL_400HZ_VAL, },
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{ 1600, ST_ACCEL_1_ODR_AVL_1600HZ_VAL, },
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},
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},
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.pw = {
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.addr = ST_ACCEL_1_ODR_ADDR,
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.mask = ST_ACCEL_1_ODR_MASK,
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.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
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},
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.enable_axis = {
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.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
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.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
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},
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.fs = {
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.addr = ST_ACCEL_1_FS_ADDR,
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.mask = ST_ACCEL_1_FS_MASK,
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.fs_avl = {
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[0] = {
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.num = ST_ACCEL_FS_AVL_2G,
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.value = ST_ACCEL_1_FS_AVL_2_VAL,
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.gain = ST_ACCEL_1_FS_AVL_2_GAIN,
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},
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[1] = {
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.num = ST_ACCEL_FS_AVL_4G,
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.value = ST_ACCEL_1_FS_AVL_4_VAL,
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.gain = ST_ACCEL_1_FS_AVL_4_GAIN,
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},
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[2] = {
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.num = ST_ACCEL_FS_AVL_8G,
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.value = ST_ACCEL_1_FS_AVL_8_VAL,
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.gain = ST_ACCEL_1_FS_AVL_8_GAIN,
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},
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[3] = {
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.num = ST_ACCEL_FS_AVL_16G,
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.value = ST_ACCEL_1_FS_AVL_16_VAL,
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.gain = ST_ACCEL_1_FS_AVL_16_GAIN,
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},
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},
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},
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.bdu = {
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.addr = ST_ACCEL_1_BDU_ADDR,
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.mask = ST_ACCEL_1_BDU_MASK,
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},
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.drdy_irq = {
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.addr = ST_ACCEL_1_DRDY_IRQ_ADDR,
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.mask_int1 = ST_ACCEL_1_DRDY_IRQ_INT1_MASK,
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.mask_int2 = ST_ACCEL_1_DRDY_IRQ_INT2_MASK,
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},
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.multi_read_bit = ST_ACCEL_1_MULTIREAD_BIT,
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.bootime = 2,
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},
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{
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.wai = ST_ACCEL_2_WAI_EXP,
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.sensors_supported = {
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[0] = LIS331DLH_ACCEL_DEV_NAME,
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[1] = LSM303DL_ACCEL_DEV_NAME,
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[2] = LSM303DLH_ACCEL_DEV_NAME,
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[3] = LSM303DLM_ACCEL_DEV_NAME,
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},
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.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
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.odr = {
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.addr = ST_ACCEL_2_ODR_ADDR,
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.mask = ST_ACCEL_2_ODR_MASK,
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.odr_avl = {
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{ 50, ST_ACCEL_2_ODR_AVL_50HZ_VAL, },
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{ 100, ST_ACCEL_2_ODR_AVL_100HZ_VAL, },
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{ 400, ST_ACCEL_2_ODR_AVL_400HZ_VAL, },
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{ 1000, ST_ACCEL_2_ODR_AVL_1000HZ_VAL, },
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},
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},
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.pw = {
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.addr = ST_ACCEL_2_PW_ADDR,
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.mask = ST_ACCEL_2_PW_MASK,
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.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
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.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
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},
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.enable_axis = {
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.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
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.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
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},
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.fs = {
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.addr = ST_ACCEL_2_FS_ADDR,
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.mask = ST_ACCEL_2_FS_MASK,
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.fs_avl = {
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[0] = {
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.num = ST_ACCEL_FS_AVL_2G,
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.value = ST_ACCEL_2_FS_AVL_2_VAL,
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.gain = ST_ACCEL_2_FS_AVL_2_GAIN,
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},
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[1] = {
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.num = ST_ACCEL_FS_AVL_4G,
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.value = ST_ACCEL_2_FS_AVL_4_VAL,
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.gain = ST_ACCEL_2_FS_AVL_4_GAIN,
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},
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[2] = {
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.num = ST_ACCEL_FS_AVL_8G,
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.value = ST_ACCEL_2_FS_AVL_8_VAL,
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.gain = ST_ACCEL_2_FS_AVL_8_GAIN,
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},
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},
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},
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.bdu = {
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.addr = ST_ACCEL_2_BDU_ADDR,
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.mask = ST_ACCEL_2_BDU_MASK,
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},
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.drdy_irq = {
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.addr = ST_ACCEL_2_DRDY_IRQ_ADDR,
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.mask_int1 = ST_ACCEL_2_DRDY_IRQ_INT1_MASK,
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.mask_int2 = ST_ACCEL_2_DRDY_IRQ_INT2_MASK,
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},
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.multi_read_bit = ST_ACCEL_2_MULTIREAD_BIT,
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.bootime = 2,
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},
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{
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.wai = ST_ACCEL_3_WAI_EXP,
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.sensors_supported = {
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[0] = LSM330_ACCEL_DEV_NAME,
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},
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.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
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.odr = {
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.addr = ST_ACCEL_3_ODR_ADDR,
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.mask = ST_ACCEL_3_ODR_MASK,
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.odr_avl = {
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{ 3, ST_ACCEL_3_ODR_AVL_3HZ_VAL },
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{ 6, ST_ACCEL_3_ODR_AVL_6HZ_VAL, },
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{ 12, ST_ACCEL_3_ODR_AVL_12HZ_VAL, },
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{ 25, ST_ACCEL_3_ODR_AVL_25HZ_VAL, },
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{ 50, ST_ACCEL_3_ODR_AVL_50HZ_VAL, },
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{ 100, ST_ACCEL_3_ODR_AVL_100HZ_VAL, },
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{ 200, ST_ACCEL_3_ODR_AVL_200HZ_VAL, },
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{ 400, ST_ACCEL_3_ODR_AVL_400HZ_VAL, },
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{ 800, ST_ACCEL_3_ODR_AVL_800HZ_VAL, },
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{ 1600, ST_ACCEL_3_ODR_AVL_1600HZ_VAL, },
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},
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},
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.pw = {
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.addr = ST_ACCEL_3_ODR_ADDR,
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.mask = ST_ACCEL_3_ODR_MASK,
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.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
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},
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.enable_axis = {
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.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
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.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
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},
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.fs = {
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.addr = ST_ACCEL_3_FS_ADDR,
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.mask = ST_ACCEL_3_FS_MASK,
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.fs_avl = {
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[0] = {
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.num = ST_ACCEL_FS_AVL_2G,
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.value = ST_ACCEL_3_FS_AVL_2_VAL,
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.gain = ST_ACCEL_3_FS_AVL_2_GAIN,
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},
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[1] = {
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.num = ST_ACCEL_FS_AVL_4G,
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.value = ST_ACCEL_3_FS_AVL_4_VAL,
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.gain = ST_ACCEL_3_FS_AVL_4_GAIN,
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},
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[2] = {
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.num = ST_ACCEL_FS_AVL_6G,
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.value = ST_ACCEL_3_FS_AVL_6_VAL,
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.gain = ST_ACCEL_3_FS_AVL_6_GAIN,
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},
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[3] = {
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.num = ST_ACCEL_FS_AVL_8G,
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.value = ST_ACCEL_3_FS_AVL_8_VAL,
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.gain = ST_ACCEL_3_FS_AVL_8_GAIN,
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},
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[4] = {
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.num = ST_ACCEL_FS_AVL_16G,
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.value = ST_ACCEL_3_FS_AVL_16_VAL,
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.gain = ST_ACCEL_3_FS_AVL_16_GAIN,
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},
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},
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},
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.bdu = {
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.addr = ST_ACCEL_3_BDU_ADDR,
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.mask = ST_ACCEL_3_BDU_MASK,
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},
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.drdy_irq = {
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.addr = ST_ACCEL_3_DRDY_IRQ_ADDR,
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.mask_int1 = ST_ACCEL_3_DRDY_IRQ_INT1_MASK,
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|
.mask_int2 = ST_ACCEL_3_DRDY_IRQ_INT2_MASK,
|
|
.ig1 = {
|
|
.en_addr = ST_ACCEL_3_IG1_EN_ADDR,
|
|
.en_mask = ST_ACCEL_3_IG1_EN_MASK,
|
|
},
|
|
},
|
|
.multi_read_bit = ST_ACCEL_3_MULTIREAD_BIT,
|
|
.bootime = 2,
|
|
},
|
|
};
|
|
|
|
static int st_accel_read_raw(struct iio_dev *indio_dev,
|
|
struct iio_chan_spec const *ch, int *val,
|
|
int *val2, long mask)
|
|
{
|
|
int err;
|
|
struct st_sensor_data *adata = iio_priv(indio_dev);
|
|
|
|
switch (mask) {
|
|
case IIO_CHAN_INFO_RAW:
|
|
err = st_sensors_read_info_raw(indio_dev, ch, val);
|
|
if (err < 0)
|
|
goto read_error;
|
|
|
|
return IIO_VAL_INT;
|
|
case IIO_CHAN_INFO_SCALE:
|
|
*val = 0;
|
|
*val2 = adata->current_fullscale->gain;
|
|
return IIO_VAL_INT_PLUS_MICRO;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
read_error:
|
|
return err;
|
|
}
|
|
|
|
static int st_accel_write_raw(struct iio_dev *indio_dev,
|
|
struct iio_chan_spec const *chan, int val, int val2, long mask)
|
|
{
|
|
int err;
|
|
|
|
switch (mask) {
|
|
case IIO_CHAN_INFO_SCALE:
|
|
err = st_sensors_set_fullscale_by_gain(indio_dev, val2);
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static ST_SENSOR_DEV_ATTR_SAMP_FREQ();
|
|
static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL();
|
|
static ST_SENSORS_DEV_ATTR_SCALE_AVAIL(in_accel_scale_available);
|
|
|
|
static struct attribute *st_accel_attributes[] = {
|
|
&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
|
|
&iio_dev_attr_in_accel_scale_available.dev_attr.attr,
|
|
&iio_dev_attr_sampling_frequency.dev_attr.attr,
|
|
NULL,
|
|
};
|
|
|
|
static const struct attribute_group st_accel_attribute_group = {
|
|
.attrs = st_accel_attributes,
|
|
};
|
|
|
|
static const struct iio_info accel_info = {
|
|
.driver_module = THIS_MODULE,
|
|
.attrs = &st_accel_attribute_group,
|
|
.read_raw = &st_accel_read_raw,
|
|
.write_raw = &st_accel_write_raw,
|
|
};
|
|
|
|
#ifdef CONFIG_IIO_TRIGGER
|
|
static const struct iio_trigger_ops st_accel_trigger_ops = {
|
|
.owner = THIS_MODULE,
|
|
.set_trigger_state = ST_ACCEL_TRIGGER_SET_STATE,
|
|
};
|
|
#define ST_ACCEL_TRIGGER_OPS (&st_accel_trigger_ops)
|
|
#else
|
|
#define ST_ACCEL_TRIGGER_OPS NULL
|
|
#endif
|
|
|
|
int st_accel_common_probe(struct iio_dev *indio_dev,
|
|
struct st_sensors_platform_data *plat_data)
|
|
{
|
|
struct st_sensor_data *adata = iio_priv(indio_dev);
|
|
int irq = adata->get_irq_data_ready(indio_dev);
|
|
int err;
|
|
|
|
indio_dev->modes = INDIO_DIRECT_MODE;
|
|
indio_dev->info = &accel_info;
|
|
|
|
st_sensors_power_enable(indio_dev);
|
|
|
|
err = st_sensors_check_device_support(indio_dev,
|
|
ARRAY_SIZE(st_accel_sensors), st_accel_sensors);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS;
|
|
adata->multiread_bit = adata->sensor->multi_read_bit;
|
|
indio_dev->channels = adata->sensor->ch;
|
|
indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS;
|
|
|
|
adata->current_fullscale = (struct st_sensor_fullscale_avl *)
|
|
&adata->sensor->fs.fs_avl[0];
|
|
adata->odr = adata->sensor->odr.odr_avl[0].hz;
|
|
|
|
if (!plat_data)
|
|
plat_data =
|
|
(struct st_sensors_platform_data *)&default_accel_pdata;
|
|
|
|
err = st_sensors_init_sensor(indio_dev, plat_data);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
err = st_accel_allocate_ring(indio_dev);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (irq > 0) {
|
|
err = st_sensors_allocate_trigger(indio_dev,
|
|
ST_ACCEL_TRIGGER_OPS);
|
|
if (err < 0)
|
|
goto st_accel_probe_trigger_error;
|
|
}
|
|
|
|
err = iio_device_register(indio_dev);
|
|
if (err)
|
|
goto st_accel_device_register_error;
|
|
|
|
dev_info(&indio_dev->dev, "registered accelerometer %s\n",
|
|
indio_dev->name);
|
|
|
|
return 0;
|
|
|
|
st_accel_device_register_error:
|
|
if (irq > 0)
|
|
st_sensors_deallocate_trigger(indio_dev);
|
|
st_accel_probe_trigger_error:
|
|
st_accel_deallocate_ring(indio_dev);
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(st_accel_common_probe);
|
|
|
|
void st_accel_common_remove(struct iio_dev *indio_dev)
|
|
{
|
|
struct st_sensor_data *adata = iio_priv(indio_dev);
|
|
|
|
st_sensors_power_disable(indio_dev);
|
|
|
|
iio_device_unregister(indio_dev);
|
|
if (adata->get_irq_data_ready(indio_dev) > 0)
|
|
st_sensors_deallocate_trigger(indio_dev);
|
|
|
|
st_accel_deallocate_ring(indio_dev);
|
|
}
|
|
EXPORT_SYMBOL(st_accel_common_remove);
|
|
|
|
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
|
|
MODULE_DESCRIPTION("STMicroelectronics accelerometers driver");
|
|
MODULE_LICENSE("GPL v2");
|