From 1e9676a8474b657b6a793f0abff2205783a1ce6f Mon Sep 17 00:00:00 2001 From: Giuseppe Barba Date: Tue, 21 Jul 2015 10:35:45 +0200 Subject: [PATCH] iio: st-magn: add support for lsm303agr magnetometer This adds support for the lsm303agr magnetometer. Signed-off-by: Giuseppe Barba Acked-by: Denis Ciocca Signed-off-by: Jonathan Cameron --- .../devicetree/bindings/iio/st-sensors.txt | 1 + drivers/iio/magnetometer/st_magn.h | 1 + drivers/iio/magnetometer/st_magn_core.c | 82 +++++++++++++++++++ drivers/iio/magnetometer/st_magn_i2c.c | 5 ++ drivers/iio/magnetometer/st_magn_spi.c | 1 + 5 files changed, 90 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt index d80bdaa75754..d3ccdb190c53 100644 --- a/Documentation/devicetree/bindings/iio/st-sensors.txt +++ b/Documentation/devicetree/bindings/iio/st-sensors.txt @@ -47,6 +47,7 @@ Gyroscopes: - st,lsm330-gyro Magnetometers: +- st,lsm303agr-magn - st,lsm303dlh-magn - st,lsm303dlhc-magn - st,lsm303dlm-magn diff --git a/drivers/iio/magnetometer/st_magn.h b/drivers/iio/magnetometer/st_magn.h index 604410236d99..06a4d9c35581 100644 --- a/drivers/iio/magnetometer/st_magn.h +++ b/drivers/iio/magnetometer/st_magn.h @@ -18,6 +18,7 @@ #define LSM303DLHC_MAGN_DEV_NAME "lsm303dlhc_magn" #define LSM303DLM_MAGN_DEV_NAME "lsm303dlm_magn" #define LIS3MDL_MAGN_DEV_NAME "lis3mdl" +#define LSM303AGR_MAGN_DEV_NAME "lsm303agr_magn" int st_magn_common_probe(struct iio_dev *indio_dev); void st_magn_common_remove(struct iio_dev *indio_dev); diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c index 4c0cef865517..f8dc4b85d70c 100644 --- a/drivers/iio/magnetometer/st_magn_core.c +++ b/drivers/iio/magnetometer/st_magn_core.c @@ -43,6 +43,7 @@ #define ST_MAGN_FS_AVL_8000MG 8000 #define ST_MAGN_FS_AVL_8100MG 8100 #define ST_MAGN_FS_AVL_12000MG 12000 +#define ST_MAGN_FS_AVL_15000MG 15000 #define ST_MAGN_FS_AVL_16000MG 16000 /* CUSTOM VALUES FOR SENSOR 0 */ @@ -157,6 +158,29 @@ #define ST_MAGN_2_OUT_Y_L_ADDR 0x2a #define ST_MAGN_2_OUT_Z_L_ADDR 0x2c +/* CUSTOM VALUES FOR SENSOR 3 */ +#define ST_MAGN_3_WAI_ADDR 0x4f +#define ST_MAGN_3_WAI_EXP 0x40 +#define ST_MAGN_3_ODR_ADDR 0x60 +#define ST_MAGN_3_ODR_MASK 0x0c +#define ST_MAGN_3_ODR_AVL_10HZ_VAL 0x00 +#define ST_MAGN_3_ODR_AVL_20HZ_VAL 0x01 +#define ST_MAGN_3_ODR_AVL_50HZ_VAL 0x02 +#define ST_MAGN_3_ODR_AVL_100HZ_VAL 0x03 +#define ST_MAGN_3_PW_ADDR 0x60 +#define ST_MAGN_3_PW_MASK 0x03 +#define ST_MAGN_3_PW_ON 0x00 +#define ST_MAGN_3_PW_OFF 0x03 +#define ST_MAGN_3_BDU_ADDR 0x62 +#define ST_MAGN_3_BDU_MASK 0x10 +#define ST_MAGN_3_DRDY_IRQ_ADDR 0x62 +#define ST_MAGN_3_DRDY_INT_MASK 0x01 +#define ST_MAGN_3_FS_AVL_15000_GAIN 1500 +#define ST_MAGN_3_MULTIREAD_BIT false +#define ST_MAGN_3_OUT_X_L_ADDR 0x68 +#define ST_MAGN_3_OUT_Y_L_ADDR 0x6a +#define ST_MAGN_3_OUT_Z_L_ADDR 0x6c + static const struct iio_chan_spec st_magn_16bit_channels[] = { ST_SENSORS_LSM_CHANNELS(IIO_MAGN, BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), @@ -189,6 +213,22 @@ static const struct iio_chan_spec st_magn_2_16bit_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(3) }; +static const struct iio_chan_spec st_magn_3_16bit_channels[] = { + ST_SENSORS_LSM_CHANNELS(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, + ST_MAGN_3_OUT_X_L_ADDR), + ST_SENSORS_LSM_CHANNELS(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, + ST_MAGN_3_OUT_Y_L_ADDR), + ST_SENSORS_LSM_CHANNELS(IIO_MAGN, + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), + ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, + ST_MAGN_3_OUT_Z_L_ADDR), + IIO_CHAN_SOFT_TIMESTAMP(3) +}; + static const struct st_sensor_settings st_magn_sensors_settings[] = { { .wai = 0, /* This sensor has no valid WhoAmI report 0 */ @@ -402,6 +442,48 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = { .multi_read_bit = ST_MAGN_2_MULTIREAD_BIT, .bootime = 2, }, + { + .wai = ST_MAGN_3_WAI_EXP, + .wai_addr = ST_MAGN_3_WAI_ADDR, + .sensors_supported = { + [0] = LSM303AGR_MAGN_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_magn_3_16bit_channels, + .odr = { + .addr = ST_MAGN_3_ODR_ADDR, + .mask = ST_MAGN_3_ODR_MASK, + .odr_avl = { + { 10, ST_MAGN_3_ODR_AVL_10HZ_VAL, }, + { 20, ST_MAGN_3_ODR_AVL_20HZ_VAL, }, + { 50, ST_MAGN_3_ODR_AVL_50HZ_VAL, }, + { 100, ST_MAGN_3_ODR_AVL_100HZ_VAL, }, + }, + }, + .pw = { + .addr = ST_MAGN_3_PW_ADDR, + .mask = ST_MAGN_3_PW_MASK, + .value_on = ST_MAGN_3_PW_ON, + .value_off = ST_MAGN_3_PW_OFF, + }, + .fs = { + .fs_avl = { + [0] = { + .num = ST_MAGN_FS_AVL_15000MG, + .gain = ST_MAGN_3_FS_AVL_15000_GAIN, + }, + }, + }, + .bdu = { + .addr = ST_MAGN_3_BDU_ADDR, + .mask = ST_MAGN_3_BDU_MASK, + }, + .drdy_irq = { + .addr = ST_MAGN_3_DRDY_IRQ_ADDR, + .mask_int1 = ST_MAGN_3_DRDY_INT_MASK, + }, + .multi_read_bit = ST_MAGN_3_MULTIREAD_BIT, + .bootime = 2, + }, }; static int st_magn_read_raw(struct iio_dev *indio_dev, diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c index 28aa80731cea..8aa37af306ed 100644 --- a/drivers/iio/magnetometer/st_magn_i2c.c +++ b/drivers/iio/magnetometer/st_magn_i2c.c @@ -36,6 +36,10 @@ static const struct of_device_id st_magn_of_match[] = { .compatible = "st,lis3mdl-magn", .data = LIS3MDL_MAGN_DEV_NAME, }, + { + .compatible = "st,lsm303agr-magn", + .data = LSM303AGR_MAGN_DEV_NAME, + }, {}, }; MODULE_DEVICE_TABLE(of, st_magn_of_match); @@ -79,6 +83,7 @@ static const struct i2c_device_id st_magn_id_table[] = { { LSM303DLHC_MAGN_DEV_NAME }, { LSM303DLM_MAGN_DEV_NAME }, { LIS3MDL_MAGN_DEV_NAME }, + { LSM303AGR_MAGN_DEV_NAME }, {}, }; MODULE_DEVICE_TABLE(i2c, st_magn_id_table); diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c index 7adacf160146..0abca2c6afa6 100644 --- a/drivers/iio/magnetometer/st_magn_spi.c +++ b/drivers/iio/magnetometer/st_magn_spi.c @@ -51,6 +51,7 @@ static const struct spi_device_id st_magn_id_table[] = { { LSM303DLHC_MAGN_DEV_NAME }, { LSM303DLM_MAGN_DEV_NAME }, { LIS3MDL_MAGN_DEV_NAME }, + { LSM303AGR_MAGN_DEV_NAME }, {}, }; MODULE_DEVICE_TABLE(spi, st_magn_id_table);