From 640aca3fb897866297402f1387c12317d084b492 Mon Sep 17 00:00:00 2001 From: Lorenzo Bianconi Date: Mon, 29 Jul 2019 21:22:29 +0200 Subject: [PATCH] iio: imu: st_lsm6dsx: move fs_table in st_lsm6dsx_sensor_settings Move fs_table in st_lsm6dsx_sensor_settings in order to support sensors with different gain maps. This is a preliminary patch to add support for LSM9DS1 sensor to st_lsm6dsx driver Tested-by: Martin Kepplinger Signed-off-by: Lorenzo Bianconi Signed-off-by: Jonathan Cameron --- drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 2 + drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 175 ++++++++++++++++++++++----- 2 files changed, 144 insertions(+), 33 deletions(-) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index 3a89f3f6..ab1c666 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -201,6 +201,7 @@ struct st_lsm6dsx_ext_dev_settings { * @max_fifo_size: Sensor max fifo length in FIFO words. * @id: List of hw id/device name supported by the driver configuration. * @odr_table: Hw sensors odr table (Hz + val). + * @fs_table: Hw sensors gain table (gain + val). * @decimator: List of decimator register info (addr + mask). * @batch: List of FIFO batching register info (addr + mask). * @fifo_ops: Sensor hw FIFO parameters. @@ -215,6 +216,7 @@ struct st_lsm6dsx_settings { const char *name; } id[ST_LSM6DSX_MAX_ID]; struct st_lsm6dsx_odr_table_entry odr_table[2]; + struct st_lsm6dsx_fs_table_entry fs_table[2]; struct st_lsm6dsx_reg decimator[ST_LSM6DSX_MAX_ID]; struct st_lsm6dsx_reg batch[ST_LSM6DSX_MAX_ID]; struct st_lsm6dsx_fifo_ops fifo_ops; diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index b3c6c97..9aa1094 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -69,29 +69,6 @@ #define ST_LSM6DSX_REG_GYRO_OUT_Y_L_ADDR 0x24 #define ST_LSM6DSX_REG_GYRO_OUT_Z_L_ADDR 0x26 -static const struct st_lsm6dsx_fs_table_entry st_lsm6dsx_fs_table[] = { - [ST_LSM6DSX_ID_ACC] = { - .reg = { - .addr = 0x10, - .mask = GENMASK(3, 2), - }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, - }, - [ST_LSM6DSX_ID_GYRO] = { - .reg = { - .addr = 0x11, - .mask = GENMASK(3, 2), - }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, - } -}; - static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { { .wai = 0x69, @@ -128,6 +105,28 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .odr_avl[5] = { 416, 0x06 }, }, }, + .fs_table = { + [ST_LSM6DSX_ID_ACC] = { + .reg = { + .addr = 0x10, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + }, + [ST_LSM6DSX_ID_GYRO] = { + .reg = { + .addr = 0x11, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + }, + }, .decimator = { [ST_LSM6DSX_ID_ACC] = { .addr = 0x08, @@ -204,6 +203,28 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .odr_avl[5] = { 416, 0x06 }, }, }, + .fs_table = { + [ST_LSM6DSX_ID_ACC] = { + .reg = { + .addr = 0x10, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + }, + [ST_LSM6DSX_ID_GYRO] = { + .reg = { + .addr = 0x11, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + }, + }, .decimator = { [ST_LSM6DSX_ID_ACC] = { .addr = 0x08, @@ -289,6 +310,28 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .odr_avl[5] = { 416, 0x06 }, }, }, + .fs_table = { + [ST_LSM6DSX_ID_ACC] = { + .reg = { + .addr = 0x10, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + }, + [ST_LSM6DSX_ID_GYRO] = { + .reg = { + .addr = 0x11, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + }, + }, .decimator = { [ST_LSM6DSX_ID_ACC] = { .addr = 0x08, @@ -368,6 +411,28 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .odr_avl[5] = { 416, 0x06 }, }, }, + .fs_table = { + [ST_LSM6DSX_ID_ACC] = { + .reg = { + .addr = 0x10, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + }, + [ST_LSM6DSX_ID_GYRO] = { + .reg = { + .addr = 0x11, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + }, + }, .batch = { [ST_LSM6DSX_ID_ACC] = { .addr = 0x09, @@ -462,6 +527,28 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .odr_avl[5] = { 416, 0x06 }, }, }, + .fs_table = { + [ST_LSM6DSX_ID_ACC] = { + .reg = { + .addr = 0x10, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + }, + [ST_LSM6DSX_ID_GYRO] = { + .reg = { + .addr = 0x11, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + }, + }, .batch = { [ST_LSM6DSX_ID_ACC] = { .addr = 0x09, @@ -530,6 +617,28 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .odr_avl[5] = { 416, 0x06 }, }, }, + .fs_table = { + [ST_LSM6DSX_ID_ACC] = { + .reg = { + .addr = 0x10, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + }, + [ST_LSM6DSX_ID_GYRO] = { + .reg = { + .addr = 0x11, + .mask = GENMASK(3, 2), + }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + }, + }, .batch = { [ST_LSM6DSX_ID_ACC] = { .addr = 0x09, @@ -665,23 +774,22 @@ static int st_lsm6dsx_check_whoami(struct st_lsm6dsx_hw *hw, int id, static int st_lsm6dsx_set_full_scale(struct st_lsm6dsx_sensor *sensor, u32 gain) { - struct st_lsm6dsx_hw *hw = sensor->hw; - const struct st_lsm6dsx_reg *reg; + const struct st_lsm6dsx_fs_table_entry *fs_table; unsigned int data; int i, err; - u8 val; + fs_table = &sensor->hw->settings->fs_table[sensor->id]; for (i = 0; i < ST_LSM6DSX_FS_LIST_SIZE; i++) - if (st_lsm6dsx_fs_table[sensor->id].fs_avl[i].gain == gain) + if (fs_table->fs_avl[i].gain == gain) break; if (i == ST_LSM6DSX_FS_LIST_SIZE) return -EINVAL; - val = st_lsm6dsx_fs_table[sensor->id].fs_avl[i].val; - reg = &st_lsm6dsx_fs_table[sensor->id].reg; - data = ST_LSM6DSX_SHIFT_VAL(val, reg->mask); - err = st_lsm6dsx_update_bits_locked(hw, reg->addr, reg->mask, data); + data = ST_LSM6DSX_SHIFT_VAL(fs_table->fs_avl[i].val, + fs_table->reg.mask); + err = st_lsm6dsx_update_bits_locked(sensor->hw, fs_table->reg.addr, + fs_table->reg.mask, data); if (err < 0) return err; @@ -934,11 +1042,12 @@ static ssize_t st_lsm6dsx_sysfs_scale_avail(struct device *dev, { struct st_lsm6dsx_sensor *sensor = iio_priv(dev_get_drvdata(dev)); enum st_lsm6dsx_sensor_id id = sensor->id; + struct st_lsm6dsx_hw *hw = sensor->hw; int i, len = 0; for (i = 0; i < ST_LSM6DSX_FS_LIST_SIZE; i++) len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06u ", - st_lsm6dsx_fs_table[id].fs_avl[i].gain); + hw->settings->fs_table[id].fs_avl[i].gain); buf[len - 1] = '\n'; return len; @@ -1173,7 +1282,7 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw, sensor->id = id; sensor->hw = hw; sensor->odr = hw->settings->odr_table[id].odr_avl[0].hz; - sensor->gain = st_lsm6dsx_fs_table[id].fs_avl[0].gain; + sensor->gain = hw->settings->fs_table[id].fs_avl[0].gain; sensor->watermark = 1; switch (id) { -- 2.7.4