diff options
Diffstat (limited to 'drivers/iio/dac/ad5421.c')
| -rw-r--r-- | drivers/iio/dac/ad5421.c | 86 |
1 files changed, 50 insertions, 36 deletions
diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c index 1f78b14abb7..3eeaa82075f 100644 --- a/drivers/iio/dac/ad5421.c +++ b/drivers/iio/dac/ad5421.c @@ -80,6 +80,29 @@ struct ad5421_state { } data[2] ____cacheline_aligned; }; +static const struct iio_event_spec ad5421_current_event[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | + BIT(IIO_EV_INFO_ENABLE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | + BIT(IIO_EV_INFO_ENABLE), + }, +}; + +static const struct iio_event_spec ad5421_temp_event[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE) | + BIT(IIO_EV_INFO_ENABLE), + }, +}; + static const struct iio_chan_spec ad5421_channels[] = { { .type = IIO_CURRENT, @@ -92,13 +115,14 @@ static const struct iio_chan_spec ad5421_channels[] = { .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET), .scan_type = IIO_ST('u', 16, 16, 0), - .event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) | - IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), + .event_spec = ad5421_current_event, + .num_event_specs = ARRAY_SIZE(ad5421_current_event), }, { .type = IIO_TEMP, .channel = -1, - .event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), + .event_spec = ad5421_temp_event, + .num_event_specs = ARRAY_SIZE(ad5421_temp_event), }, }; @@ -281,18 +305,11 @@ static inline unsigned int ad5421_get_offset(struct ad5421_state *st) return (min * (1 << 16)) / (max - min); } -static inline unsigned int ad5421_get_scale(struct ad5421_state *st) -{ - unsigned int min, max; - - ad5421_get_current_min_max(st, &min, &max); - return ((max - min) * 1000) / (1 << 16); -} - static int ad5421_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long m) { struct ad5421_state *st = iio_priv(indio_dev); + unsigned int min, max; int ret; if (chan->type != IIO_CURRENT) @@ -306,9 +323,10 @@ static int ad5421_read_raw(struct iio_dev *indio_dev, *val = ret; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - *val = 0; - *val2 = ad5421_get_scale(st); - return IIO_VAL_INT_PLUS_MICRO; + ad5421_get_current_min_max(st, &min, &max); + *val = max - min; + *val2 = (1 << 16) * 1000; + return IIO_VAL_FRACTIONAL; case IIO_CHAN_INFO_OFFSET: *val = ad5421_get_offset(st); return IIO_VAL_INT; @@ -359,15 +377,15 @@ static int ad5421_write_raw(struct iio_dev *indio_dev, } static int ad5421_write_event_config(struct iio_dev *indio_dev, - u64 event_code, int state) + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir, int state) { struct ad5421_state *st = iio_priv(indio_dev); unsigned int mask; - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_CURRENT: - if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == - IIO_EV_DIR_RISING) + if (dir == IIO_EV_DIR_RISING) mask = AD5421_FAULT_OVER_CURRENT; else mask = AD5421_FAULT_UNDER_CURRENT; @@ -390,15 +408,15 @@ static int ad5421_write_event_config(struct iio_dev *indio_dev, } static int ad5421_read_event_config(struct iio_dev *indio_dev, - u64 event_code) + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir) { struct ad5421_state *st = iio_priv(indio_dev); unsigned int mask; - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_CURRENT: - if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == - IIO_EV_DIR_RISING) + if (dir == IIO_EV_DIR_RISING) mask = AD5421_FAULT_OVER_CURRENT; else mask = AD5421_FAULT_UNDER_CURRENT; @@ -413,12 +431,14 @@ static int ad5421_read_event_config(struct iio_dev *indio_dev, return (bool)(st->fault_mask & mask); } -static int ad5421_read_event_value(struct iio_dev *indio_dev, u64 event_code, - int *val) +static int ad5421_read_event_value(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir, enum iio_event_info info, int *val, + int *val2) { int ret; - switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) { + switch (chan->type) { case IIO_CURRENT: ret = ad5421_read(indio_dev, AD5421_REG_DAC_DATA); if (ret < 0) @@ -432,15 +452,15 @@ static int ad5421_read_event_value(struct iio_dev *indio_dev, u64 event_code, return -EINVAL; } - return 0; + return IIO_VAL_INT; } static const struct iio_info ad5421_info = { .read_raw = ad5421_read_raw, .write_raw = ad5421_write_raw, - .read_event_config = ad5421_read_event_config, - .write_event_config = ad5421_write_event_config, - .read_event_value = ad5421_read_event_value, + .read_event_config_new = ad5421_read_event_config, + .write_event_config_new = ad5421_write_event_config, + .read_event_value_new = ad5421_read_event_value, .driver_module = THIS_MODULE, }; @@ -494,13 +514,7 @@ static int ad5421_probe(struct spi_device *spi) return ret; } - ret = iio_device_register(indio_dev); - if (ret) { - dev_err(&spi->dev, "Failed to register iio device: %d\n", ret); - return ret; - } - - return 0; + return iio_device_register(indio_dev); } static int ad5421_remove(struct spi_device *spi) |