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path: root/drivers/iio/light/hid-sensor-als.c
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Diffstat (limited to 'drivers/iio/light/hid-sensor-als.c')
-rw-r--r--drivers/iio/light/hid-sensor-als.c202
1 files changed, 144 insertions, 58 deletions
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 2ff252c75c03..384572844162 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -14,8 +14,11 @@
#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_CHROMATICITY_X,
+ CHANNEL_SCAN_INDEX_CHROMATICITY_Y,
CHANNEL_SCAN_INDEX_MAX
};
@@ -24,16 +27,28 @@ enum {
struct als_state {
struct hid_sensor_hub_callbacks callbacks;
struct hid_sensor_common common_attributes;
- struct hid_sensor_hub_attribute_info als_illum;
+ struct hid_sensor_hub_attribute_info als[CHANNEL_SCAN_INDEX_MAX];
+ struct iio_chan_spec channels[CHANNEL_SCAN_INDEX_MAX + 1];
struct {
u32 illum[CHANNEL_SCAN_INDEX_MAX];
- u64 timestamp __aligned(8);
+ aligned_s64 timestamp;
} scan;
int scale_pre_decml;
int scale_post_decml;
int scale_precision;
int value_offset;
+ int num_channels;
s64 timestamp;
+ unsigned long als_scan_mask[2];
+};
+
+/* The order of usage ids must match scan index starting from CHANNEL_SCAN_INDEX_INTENSITY */
+static const u32 als_usage_ids[] = {
+ HID_USAGE_SENSOR_LIGHT_ILLUM,
+ HID_USAGE_SENSOR_LIGHT_ILLUM,
+ HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE,
+ HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X,
+ HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y,
};
static const u32 als_sensitivity_addresses[] = {
@@ -65,6 +80,40 @@ 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,
+ },
+ {
+ .type = IIO_CHROMATICITY,
+ .modified = 1,
+ .channel2 = IIO_MOD_X,
+ .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_CHROMATICITY_X,
+ },
+ {
+ .type = IIO_CHROMATICITY,
+ .modified = 1,
+ .channel2 = IIO_MOD_Y,
+ .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_CHROMATICITY_Y,
+ },
IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP)
};
@@ -86,6 +135,7 @@ static int als_read_raw(struct iio_dev *indio_dev,
long mask)
{
struct als_state *als_state = iio_priv(indio_dev);
+ struct hid_sensor_hub_device *hsdev = als_state->common_attributes.hsdev;
int report_id = -1;
u32 address;
int ret_type;
@@ -98,10 +148,25 @@ static int als_read_raw(struct iio_dev *indio_dev,
switch (chan->scan_index) {
case CHANNEL_SCAN_INDEX_INTENSITY:
case CHANNEL_SCAN_INDEX_ILLUM:
- report_id = als_state->als_illum.report_id;
- min = als_state->als_illum.logical_minimum;
+ report_id = als_state->als[chan->scan_index].report_id;
+ 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;
+ case CHANNEL_SCAN_INDEX_CHROMATICITY_X:
+ report_id = als_state->als[chan->scan_index].report_id;
+ min = als_state->als[chan->scan_index].logical_minimum;
+ address = HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X;
+ break;
+ case CHANNEL_SCAN_INDEX_CHROMATICITY_Y:
+ report_id = als_state->als[chan->scan_index].report_id;
+ min = als_state->als[chan->scan_index].logical_minimum;
+ address = HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y;
+ break;
default:
report_id = -1;
break;
@@ -110,11 +175,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
hid_sensor_power_state(&als_state->common_attributes,
true);
*val = sensor_hub_input_attr_get_raw_value(
- als_state->common_attributes.hsdev,
- HID_USAGE_SENSOR_ALS, address,
- report_id,
- SENSOR_HUB_SYNC,
- min < 0);
+ hsdev, hsdev->usage, address, report_id,
+ SENSOR_HUB_SYNC, min < 0);
hid_sensor_power_state(&als_state->common_attributes,
false);
} else {
@@ -200,8 +262,9 @@ static int als_proc_event(struct hid_sensor_hub_device *hsdev,
if (!als_state->timestamp)
als_state->timestamp = iio_get_time_ns(indio_dev);
- iio_push_to_buffers_with_timestamp(indio_dev, &als_state->scan,
- als_state->timestamp);
+ iio_push_to_buffers_with_ts(indio_dev, &als_state->scan,
+ sizeof(als_state->scan),
+ als_state->timestamp);
als_state->timestamp = 0;
}
@@ -225,9 +288,22 @@ 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_LIGHT_CHROMATICITY_X:
+ als_state->scan.illum[CHANNEL_SCAN_INDEX_CHROMATICITY_X] = sample_data;
+ ret = 0;
+ break;
+ case HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y:
+ als_state->scan.illum[CHANNEL_SCAN_INDEX_CHROMATICITY_Y] = 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);
+ ret = 0;
break;
default:
break;
@@ -239,29 +315,40 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev,
/* Parse report which is specific to an usage id*/
static int als_parse_report(struct platform_device *pdev,
struct hid_sensor_hub_device *hsdev,
- struct iio_chan_spec *channels,
unsigned usage_id,
struct als_state *st)
{
- int ret;
-
- ret = sensor_hub_input_get_attribute_info(hsdev, HID_INPUT_REPORT,
- usage_id,
- HID_USAGE_SENSOR_LIGHT_ILLUM,
- &st->als_illum);
- if (ret < 0)
- return ret;
- als_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_INTENSITY,
- st->als_illum.size);
- als_adjust_channel_bit_mask(channels, CHANNEL_SCAN_INDEX_ILLUM,
- st->als_illum.size);
+ struct iio_chan_spec *channels;
+ int ret, index = 0;
+ int i;
+
+ channels = st->channels;
+
+ for (i = 0; i < CHANNEL_SCAN_INDEX_MAX; ++i) {
+ ret = sensor_hub_input_get_attribute_info(hsdev,
+ HID_INPUT_REPORT,
+ usage_id,
+ als_usage_ids[i],
+ &st->als[i]);
+ if (ret < 0)
+ continue;
+
+ channels[index] = als_channels[i];
+ st->als_scan_mask[0] |= BIT(i);
+ als_adjust_channel_bit_mask(channels, index, st->als[i].size);
+ ++index;
+
+ dev_dbg(&pdev->dev, "als %x:%x\n", st->als[i].index,
+ st->als[i].report_id);
+ }
- dev_dbg(&pdev->dev, "als %x:%x\n", st->als_illum.index,
- st->als_illum.report_id);
+ st->num_channels = index;
+ /* Return success even if one usage id is present */
+ if (index)
+ ret = 0;
- st->scale_precision = hid_sensor_format_scale(
- HID_USAGE_SENSOR_ALS,
- &st->als_illum,
+ st->scale_precision = hid_sensor_format_scale(usage_id,
+ &st->als[CHANNEL_SCAN_INDEX_INTENSITY],
&st->scale_pre_decml, &st->scale_post_decml);
return ret;
@@ -270,11 +357,11 @@ static int als_parse_report(struct platform_device *pdev,
/* Function to initialize the processing for usage id */
static int hid_als_probe(struct platform_device *pdev)
{
+ struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
int ret = 0;
static const char *name = "als";
struct iio_dev *indio_dev;
struct als_state *als_state;
- struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(struct als_state));
if (!indio_dev)
@@ -285,7 +372,8 @@ static int hid_als_probe(struct platform_device *pdev)
als_state->common_attributes.hsdev = hsdev;
als_state->common_attributes.pdev = pdev;
- ret = hid_sensor_parse_common_attributes(hsdev, HID_USAGE_SENSOR_ALS,
+ ret = hid_sensor_parse_common_attributes(hsdev,
+ hsdev->usage,
&als_state->common_attributes,
als_sensitivity_addresses,
ARRAY_SIZE(als_sensitivity_addresses));
@@ -294,23 +382,23 @@ static int hid_als_probe(struct platform_device *pdev)
return ret;
}
- indio_dev->channels = kmemdup(als_channels,
- sizeof(als_channels), GFP_KERNEL);
- if (!indio_dev->channels) {
- dev_err(&pdev->dev, "failed to duplicate channels\n");
- return -ENOMEM;
- }
-
ret = als_parse_report(pdev, hsdev,
- (struct iio_chan_spec *)indio_dev->channels,
- HID_USAGE_SENSOR_ALS, als_state);
+ hsdev->usage,
+ als_state);
if (ret) {
dev_err(&pdev->dev, "failed to setup attributes\n");
- goto error_free_dev_mem;
+ return ret;
}
- indio_dev->num_channels =
- ARRAY_SIZE(als_channels);
+ /* Add timestamp channel */
+ als_state->channels[als_state->num_channels] = als_channels[CHANNEL_SCAN_INDEX_TIMESTAMP];
+
+ /* +1 for adding timestamp channel */
+ indio_dev->num_channels = als_state->num_channels + 1;
+
+ indio_dev->channels = als_state->channels;
+ indio_dev->available_scan_masks = als_state->als_scan_mask;
+
indio_dev->info = &als_info;
indio_dev->name = name;
indio_dev->modes = INDIO_DIRECT_MODE;
@@ -321,7 +409,7 @@ static int hid_als_probe(struct platform_device *pdev)
&als_state->common_attributes);
if (ret < 0) {
dev_err(&pdev->dev, "trigger setup failed\n");
- goto error_free_dev_mem;
+ return ret;
}
ret = iio_device_register(indio_dev);
@@ -333,8 +421,7 @@ static int hid_als_probe(struct platform_device *pdev)
als_state->callbacks.send_event = als_proc_event;
als_state->callbacks.capture_sample = als_capture_sample;
als_state->callbacks.pdev = pdev;
- ret = sensor_hub_register_callback(hsdev, HID_USAGE_SENSOR_ALS,
- &als_state->callbacks);
+ ret = sensor_hub_register_callback(hsdev, hsdev->usage, &als_state->callbacks);
if (ret < 0) {
dev_err(&pdev->dev, "callback reg failed\n");
goto error_iio_unreg;
@@ -346,24 +433,19 @@ error_iio_unreg:
iio_device_unregister(indio_dev);
error_remove_trigger:
hid_sensor_remove_trigger(indio_dev, &als_state->common_attributes);
-error_free_dev_mem:
- kfree(indio_dev->channels);
return ret;
}
/* Function to deinitialize the processing for usage id */
-static int hid_als_remove(struct platform_device *pdev)
+static void hid_als_remove(struct platform_device *pdev)
{
- struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+ struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct als_state *als_state = iio_priv(indio_dev);
- sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ALS);
+ sensor_hub_remove_callback(hsdev, hsdev->usage);
iio_device_unregister(indio_dev);
hid_sensor_remove_trigger(indio_dev, &als_state->common_attributes);
- kfree(indio_dev->channels);
-
- return 0;
}
static const struct platform_device_id hid_als_ids[] = {
@@ -371,7 +453,11 @@ static const struct platform_device_id hid_als_ids[] = {
/* Format: HID-SENSOR-usage_id_in_hex_lowercase */
.name = "HID-SENSOR-200041",
},
- { /* sentinel */ }
+ {
+ /* Format: HID-SENSOR-custom_sensor_tag-usage_id_in_hex_lowercase */
+ .name = "HID-SENSOR-LISS-0041",
+ },
+ { }
};
MODULE_DEVICE_TABLE(platform, hid_als_ids);
@@ -389,4 +475,4 @@ module_platform_driver(hid_als_platform_driver);
MODULE_DESCRIPTION("HID Sensor ALS");
MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
MODULE_LICENSE("GPL");
-MODULE_IMPORT_NS(IIO_HID);
+MODULE_IMPORT_NS("IIO_HID");
generated by cgit (git 2.34.1) at 2025-12-24 21:23:01 +0000