| Message ID | 20230919081054.2050714-4-Basavaraj.Natikar@amd.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Support light color temperature and chromaticity | expand |
On Tue, 2023-09-19 at 13:40 +0530, Basavaraj Natikar wrote: > In most cases, ambient color sensors also support light color > temperature. > As a result, add support of light color temperature. > > Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Acked-by: Srinivas Pandruvada<srinivas.pandruvada@linux.intel.com> > --- > drivers/iio/light/hid-sensor-als.c | 37 > ++++++++++++++++++++++++++++-- > include/linux/hid-sensor-ids.h | 1 + > 2 files changed, 36 insertions(+), 2 deletions(-) > > diff --git a/drivers/iio/light/hid-sensor-als.c > b/drivers/iio/light/hid-sensor-als.c > index efb1f8862b28..16a3f1941c27 100644 > --- a/drivers/iio/light/hid-sensor-als.c > +++ b/drivers/iio/light/hid-sensor-als.c > @@ -14,8 +14,9 @@ > #include "../common/hid-sensors/hid-sensor-trigger.h" > > enum { > - CHANNEL_SCAN_INDEX_INTENSITY = 0, > - CHANNEL_SCAN_INDEX_ILLUM = 1, > + CHANNEL_SCAN_INDEX_INTENSITY, > + CHANNEL_SCAN_INDEX_ILLUM, > + CHANNEL_SCAN_INDEX_COLOR_TEMP, > CHANNEL_SCAN_INDEX_MAX > }; > > @@ -65,6 +66,16 @@ static const struct iio_chan_spec als_channels[] = > { > BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), > .scan_index = CHANNEL_SCAN_INDEX_ILLUM, > }, > + { > + .type = IIO_COLORTEMP, > + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), > + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) > | > + BIT(IIO_CHAN_INFO_SCALE) | > + BIT(IIO_CHAN_INFO_SAMP_FREQ) | > + BIT(IIO_CHAN_INFO_HYSTERESIS) | > + BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), > + .scan_index = CHANNEL_SCAN_INDEX_COLOR_TEMP, > + }, > IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP) > }; > > @@ -103,6 +114,11 @@ static int als_read_raw(struct iio_dev > *indio_dev, > min = als_state->als[chan- > >scan_index].logical_minimum; > address = HID_USAGE_SENSOR_LIGHT_ILLUM; > break; > + case CHANNEL_SCAN_INDEX_COLOR_TEMP: > + report_id = als_state->als[chan- > >scan_index].report_id; > + min = als_state->als[chan- > >scan_index].logical_minimum; > + address = > HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE; > + break; > default: > report_id = -1; > break; > @@ -223,6 +239,10 @@ static int als_capture_sample(struct > hid_sensor_hub_device *hsdev, > als_state->scan.illum[CHANNEL_SCAN_INDEX_ILLUM] = > sample_data; > ret = 0; > break; > + case HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE: > + als_state->scan.illum[CHANNEL_SCAN_INDEX_COLOR_TEMP] > = sample_data; > + ret = 0; > + break; > case HID_USAGE_SENSOR_TIME_TIMESTAMP: > als_state->timestamp = > hid_sensor_convert_timestamp(&als_state->common_attributes, > > *(s64 *)raw_data); > @@ -258,6 +278,19 @@ static int als_parse_report(struct > platform_device *pdev, > st->als[i].report_id); > } > > + ret = sensor_hub_input_get_attribute_info(hsdev, > HID_INPUT_REPORT, > + usage_id, > + HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERAT > URE, > + &st- > >als[CHANNEL_SCAN_INDEX_COLOR_TEMP]); > + if (ret < 0) > + return ret; > + als_adjust_channel_bit_mask(channels, > CHANNEL_SCAN_INDEX_COLOR_TEMP, > + st- > >als[CHANNEL_SCAN_INDEX_COLOR_TEMP].size); > + > + dev_dbg(&pdev->dev, "als %x:%x\n", > + st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].index, > + st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].report_id); > + > st->scale_precision = hid_sensor_format_scale(usage_id, > &st- > >als[CHANNEL_SCAN_INDEX_INTENSITY], > &st->scale_pre_decml, &st- > >scale_post_decml); > diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid- > sensor-ids.h > index 13b1e65fbdcc..8af4fb3e0254 100644 > --- a/include/linux/hid-sensor-ids.h > +++ b/include/linux/hid-sensor-ids.h > @@ -21,6 +21,7 @@ > #define > HID_USAGE_SENSOR_ALS 0x200041 > #define > HID_USAGE_SENSOR_DATA_LIGHT 0x2004d0 > #define > HID_USAGE_SENSOR_LIGHT_ILLUM 0x2004d1 > +#define > HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE 0x2004d2 > > /* PROX (200011) */ > #define HID_USAGE_SENSOR_PROX > 0x200011
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index efb1f8862b28..16a3f1941c27 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -14,8 +14,9 @@ #include "../common/hid-sensors/hid-sensor-trigger.h" enum { - CHANNEL_SCAN_INDEX_INTENSITY = 0, - CHANNEL_SCAN_INDEX_ILLUM = 1, + CHANNEL_SCAN_INDEX_INTENSITY, + CHANNEL_SCAN_INDEX_ILLUM, + CHANNEL_SCAN_INDEX_COLOR_TEMP, CHANNEL_SCAN_INDEX_MAX }; @@ -65,6 +66,16 @@ static const struct iio_chan_spec als_channels[] = { BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), .scan_index = CHANNEL_SCAN_INDEX_ILLUM, }, + { + .type = IIO_COLORTEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_HYSTERESIS) | + BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), + .scan_index = CHANNEL_SCAN_INDEX_COLOR_TEMP, + }, IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP) }; @@ -103,6 +114,11 @@ static int als_read_raw(struct iio_dev *indio_dev, min = als_state->als[chan->scan_index].logical_minimum; address = HID_USAGE_SENSOR_LIGHT_ILLUM; break; + case CHANNEL_SCAN_INDEX_COLOR_TEMP: + report_id = als_state->als[chan->scan_index].report_id; + min = als_state->als[chan->scan_index].logical_minimum; + address = HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE; + break; default: report_id = -1; break; @@ -223,6 +239,10 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev, als_state->scan.illum[CHANNEL_SCAN_INDEX_ILLUM] = sample_data; ret = 0; break; + case HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE: + als_state->scan.illum[CHANNEL_SCAN_INDEX_COLOR_TEMP] = sample_data; + ret = 0; + break; case HID_USAGE_SENSOR_TIME_TIMESTAMP: als_state->timestamp = hid_sensor_convert_timestamp(&als_state->common_attributes, *(s64 *)raw_data); @@ -258,6 +278,19 @@ static int als_parse_report(struct platform_device *pdev, st->als[i].report_id); } + ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT, + usage_id, + HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE, + &st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP]); + if (ret < 0) + return ret; + als_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_COLOR_TEMP, + st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].size); + + dev_dbg(&pdev->dev, "als %x:%x\n", + st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].index, + st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].report_id); + st->scale_precision = hid_sensor_format_scale(usage_id, &st->als[CHANNEL_SCAN_INDEX_INTENSITY], &st->scale_pre_decml, &st->scale_post_decml); diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h index 13b1e65fbdcc..8af4fb3e0254 100644 --- a/include/linux/hid-sensor-ids.h +++ b/include/linux/hid-sensor-ids.h @@ -21,6 +21,7 @@ #define HID_USAGE_SENSOR_ALS 0x200041 #define HID_USAGE_SENSOR_DATA_LIGHT 0x2004d0 #define HID_USAGE_SENSOR_LIGHT_ILLUM 0x2004d1 +#define HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE 0x2004d2 /* PROX (200011) */ #define HID_USAGE_SENSOR_PROX 0x200011
In most cases, ambient color sensors also support light color temperature. As a result, add support of light color temperature. Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> --- drivers/iio/light/hid-sensor-als.c | 37 ++++++++++++++++++++++++++++-- include/linux/hid-sensor-ids.h | 1 + 2 files changed, 36 insertions(+), 2 deletions(-)