diff options
Diffstat (limited to 'drivers/iio/adc/hi8435.c')
| -rw-r--r-- | drivers/iio/adc/hi8435.c | 46 |
1 files changed, 40 insertions, 6 deletions
diff --git a/drivers/iio/adc/hi8435.c b/drivers/iio/adc/hi8435.c index 678e8c7ea763..adf7dc712937 100644 --- a/drivers/iio/adc/hi8435.c +++ b/drivers/iio/adc/hi8435.c @@ -105,6 +105,26 @@ static int hi8435_writew(struct hi8435_priv *priv, u8 reg, u16 val) return spi_write(priv->spi, priv->reg_buffer, 3); } +static int hi8435_read_raw(struct iio_dev *idev, + const struct iio_chan_spec *chan, + int *val, int *val2, long mask) +{ + struct hi8435_priv *priv = iio_priv(idev); + u32 tmp; + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = hi8435_readl(priv, HI8435_SO31_0_REG, &tmp); + if (ret < 0) + return ret; + *val = !!(tmp & BIT(chan->channel)); + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + static int hi8435_read_event_config(struct iio_dev *idev, const struct iio_chan_spec *chan, enum iio_event_type type, @@ -121,10 +141,21 @@ static int hi8435_write_event_config(struct iio_dev *idev, enum iio_event_direction dir, int state) { struct hi8435_priv *priv = iio_priv(idev); + int ret; + u32 tmp; + + if (state) { + ret = hi8435_readl(priv, HI8435_SO31_0_REG, &tmp); + if (ret < 0) + return ret; + if (tmp & BIT(chan->channel)) + priv->event_prev_val |= BIT(chan->channel); + else + priv->event_prev_val &= ~BIT(chan->channel); - priv->event_scan_mask &= ~BIT(chan->channel); - if (state) priv->event_scan_mask |= BIT(chan->channel); + } else + priv->event_scan_mask &= ~BIT(chan->channel); return 0; } @@ -325,6 +356,7 @@ static const struct iio_enum hi8435_sensing_mode = { static const struct iio_chan_spec_ext_info hi8435_ext_info[] = { IIO_ENUM("sensing_mode", IIO_SEPARATE, &hi8435_sensing_mode), + IIO_ENUM_AVAILABLE("sensing_mode", &hi8435_sensing_mode), {}, }; @@ -333,6 +365,7 @@ static const struct iio_chan_spec_ext_info hi8435_ext_info[] = { .type = IIO_VOLTAGE, \ .indexed = 1, \ .channel = num, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ .event_spec = hi8435_events, \ .num_event_specs = ARRAY_SIZE(hi8435_events), \ .ext_info = hi8435_ext_info, \ @@ -376,11 +409,12 @@ static const struct iio_chan_spec hi8435_channels[] = { static const struct iio_info hi8435_info = { .driver_module = THIS_MODULE, - .read_event_config = &hi8435_read_event_config, + .read_raw = hi8435_read_raw, + .read_event_config = hi8435_read_event_config, .write_event_config = hi8435_write_event_config, - .read_event_value = &hi8435_read_event_value, - .write_event_value = &hi8435_write_event_value, - .debugfs_reg_access = &hi8435_debugfs_reg_access, + .read_event_value = hi8435_read_event_value, + .write_event_value = hi8435_write_event_value, + .debugfs_reg_access = hi8435_debugfs_reg_access, }; static void hi8435_iio_push_event(struct iio_dev *idev, unsigned int val) |