diff options
Diffstat (limited to 'drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c')
| -rw-r--r-- | drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index e2737dc71b67..755c472e8a05 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -35,10 +35,6 @@ #include "st_lsm6dsx.h" -#define ST_LSM6DSX_REG_FIFO_THL_ADDR 0x06 -#define ST_LSM6DSX_REG_FIFO_THH_ADDR 0x07 -#define ST_LSM6DSX_FIFO_TH_MASK GENMASK(11, 0) -#define ST_LSM6DSX_REG_FIFO_DEC_GXL_ADDR 0x08 #define ST_LSM6DSX_REG_HLACTIVE_ADDR 0x12 #define ST_LSM6DSX_REG_HLACTIVE_MASK BIT(5) #define ST_LSM6DSX_REG_PP_OD_ADDR 0x12 @@ -46,8 +42,6 @@ #define ST_LSM6DSX_REG_FIFO_MODE_ADDR 0x0a #define ST_LSM6DSX_FIFO_MODE_MASK GENMASK(2, 0) #define ST_LSM6DSX_FIFO_ODR_MASK GENMASK(6, 3) -#define ST_LSM6DSX_REG_FIFO_DIFFL_ADDR 0x3a -#define ST_LSM6DSX_FIFO_DIFF_MASK GENMASK(11, 0) #define ST_LSM6DSX_FIFO_EMPTY_MASK BIT(12) #define ST_LSM6DSX_REG_FIFO_OUTL_ADDR 0x3e @@ -110,8 +104,9 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw) st_lsm6dsx_get_max_min_odr(hw, &max_odr, &min_odr); for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) { - sensor = iio_priv(hw->iio_devs[i]); + const struct st_lsm6dsx_reg *dec_reg; + sensor = iio_priv(hw->iio_devs[i]); /* update fifo decimators and sample in pattern */ if (hw->enable_mask & BIT(sensor->id)) { sensor->sip = sensor->odr / min_odr; @@ -123,12 +118,13 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw) data = 0; } - err = st_lsm6dsx_write_with_mask(hw, - ST_LSM6DSX_REG_FIFO_DEC_GXL_ADDR, - sensor->decimator_mask, data); - if (err < 0) - return err; - + dec_reg = &hw->settings->decimator[sensor->id]; + if (dec_reg->addr) { + err = st_lsm6dsx_write_with_mask(hw, dec_reg->addr, + dec_reg->mask, data); + if (err < 0) + return err; + } sip += sensor->sip; } hw->sip = sip; @@ -139,23 +135,10 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw) int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw, enum st_lsm6dsx_fifo_mode fifo_mode) { - u8 data; int err; - switch (fifo_mode) { - case ST_LSM6DSX_FIFO_BYPASS: - data = fifo_mode; - break; - case ST_LSM6DSX_FIFO_CONT: - data = (ST_LSM6DSX_MAX_FIFO_ODR_VAL << - __ffs(ST_LSM6DSX_FIFO_ODR_MASK)) | fifo_mode; - break; - default: - return -EINVAL; - } - - err = hw->tf->write(hw->dev, ST_LSM6DSX_REG_FIFO_MODE_ADDR, - sizeof(data), &data); + err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR, + ST_LSM6DSX_FIFO_MODE_MASK, fifo_mode); if (err < 0) return err; @@ -164,9 +147,20 @@ int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw, return 0; } +static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor, + bool enable) +{ + struct st_lsm6dsx_hw *hw = sensor->hw; + u8 data; + + data = hw->enable_mask ? ST_LSM6DSX_MAX_FIFO_ODR_VAL : 0; + return st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR, + ST_LSM6DSX_FIFO_ODR_MASK, data); +} + int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) { - u16 fifo_watermark = ~0, cur_watermark, sip = 0; + u16 fifo_watermark = ~0, cur_watermark, sip = 0, fifo_th_mask; struct st_lsm6dsx_hw *hw = sensor->hw; struct st_lsm6dsx_sensor *cur_sensor; __le16 wdata; @@ -191,20 +185,21 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark) fifo_watermark = max_t(u16, fifo_watermark, sip); fifo_watermark = (fifo_watermark / sip) * sip; - fifo_watermark = fifo_watermark * ST_LSM6DSX_SAMPLE_DEPTH; + fifo_watermark = fifo_watermark * hw->settings->fifo_ops.th_wl; mutex_lock(&hw->lock); - err = hw->tf->read(hw->dev, ST_LSM6DSX_REG_FIFO_THH_ADDR, + err = hw->tf->read(hw->dev, hw->settings->fifo_ops.fifo_th.addr + 1, sizeof(data), &data); if (err < 0) goto out; - fifo_watermark = ((data << 8) & ~ST_LSM6DSX_FIFO_TH_MASK) | - (fifo_watermark & ST_LSM6DSX_FIFO_TH_MASK); + fifo_th_mask = hw->settings->fifo_ops.fifo_th.mask; + fifo_watermark = ((data << 8) & ~fifo_th_mask) | + (fifo_watermark & fifo_th_mask); wdata = cpu_to_le16(fifo_watermark); - err = hw->tf->write(hw->dev, ST_LSM6DSX_REG_FIFO_THL_ADDR, + err = hw->tf->write(hw->dev, hw->settings->fifo_ops.fifo_th.addr, sizeof(wdata), (u8 *)&wdata); out: mutex_unlock(&hw->lock); @@ -223,6 +218,7 @@ out: static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) { u16 fifo_len, pattern_len = hw->sip * ST_LSM6DSX_SAMPLE_SIZE; + u16 fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask; int err, acc_sip, gyro_sip, read_len, samples, offset; struct st_lsm6dsx_sensor *acc_sensor, *gyro_sensor; s64 acc_ts, acc_delta_ts, gyro_ts, gyro_delta_ts; @@ -230,7 +226,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) u8 buff[pattern_len]; __le16 fifo_status; - err = hw->tf->read(hw->dev, ST_LSM6DSX_REG_FIFO_DIFFL_ADDR, + err = hw->tf->read(hw->dev, hw->settings->fifo_ops.fifo_diff.addr, sizeof(fifo_status), (u8 *)&fifo_status); if (err < 0) return err; @@ -238,7 +234,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) if (fifo_status & cpu_to_le16(ST_LSM6DSX_FIFO_EMPTY_MASK)) return 0; - fifo_len = (le16_to_cpu(fifo_status) & ST_LSM6DSX_FIFO_DIFF_MASK) * + fifo_len = (le16_to_cpu(fifo_status) & fifo_diff_mask) * ST_LSM6DSX_CHAN_SIZE; samples = fifo_len / ST_LSM6DSX_SAMPLE_SIZE; fifo_len = (fifo_len / pattern_len) * pattern_len; @@ -345,6 +341,10 @@ static int st_lsm6dsx_update_fifo(struct iio_dev *iio_dev, bool enable) return err; } + err = st_lsm6dsx_set_fifo_odr(sensor, enable); + if (err < 0) + return err; + err = st_lsm6dsx_update_decimators(hw); if (err < 0) return err; |