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HID: amd_sfh: Add light chromaticity support 

In most cases, ambient color sensors also support the x and y light
colors, which represent the coordinates on the CIE 1931 chromaticity
diagram. Thus, add light chromaticity x and y.

Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Link: https://lore.kernel.org/r/20230919081054.2050714-9-Basavaraj.Natikar@amd.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Basavaraj Natikar 2023-09-19 13:40:53 +05:30 committed by Jonathan Cameron
parent ee3710f39f
commit 3244d44a7c
3 changed files with 20 additions and 1 deletions
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5
drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.c
View File

@ -258,8 +258,11 @@ static u8 get_input_report(u8 current_index, int sensor_idx, int report_id,
als_input.illuminance_value =
(int)sensor_virt_addr[0] / AMD_SFH_FW_MULTIPLIER;
if (sensor_idx == ACS_IDX)
if (sensor_idx == ACS_IDX) {
als_input.light_color_temp = sensor_virt_addr[1];
als_input.chromaticity_x_value = sensor_virt_addr[2];
als_input.chromaticity_y_value = sensor_virt_addr[3];
}
report_size = sizeof(als_input);
memcpy(input_report, &als_input, sizeof(als_input));

2
drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_desc.h
View File

@ -100,6 +100,8 @@ struct als_input_report {
/* values specific to this sensor */
int illuminance_value;
int light_color_temp;
int chromaticity_x_value;
int chromaticity_y_value;
} __packed;
struct hpd_feature_report {

14
drivers/hid/amd-sfh-hid/hid_descriptor/amd_sfh_hid_report_desc.h
View File

@ -648,6 +648,20 @@ static const u8 als_report_descriptor[] = {
0x75, 32, /* HID report size(32) */
0x95, 1, /* HID report count (1) */
0X81, 0x02, /* HID Input (Data_Arr_Abs) */
0x0A, 0xD4, 0x04, /* HID usage sensor data light chromaticity_x */
0x17, 0x00, 0x00, 0x01, 0x80, /* HID logical Min_32 */
0x27, 0xFF, 0xFF, 0xFF, 0x7F, /* HID logical Max_32 */
0x55, 0x0, /* HID unit exponent(0x0) */
0x75, 32, /* HID report size(32) */
0x95, 1, /* HID report count(1) */
0X81, 0x02, /* HID Input (Data_Var_Abs) */
0x0A, 0xD5, 0x04, /* HID usage sensor data light chromaticity_y */
0x17, 0x00, 0x00, 0x01, 0x80, /* HID logical Min_32 */
0x27, 0xFF, 0xFF, 0xFF, 0x7F, /* HID logical Max_32 */
0x55, 0x0, /* HID unit exponent(0x0) */
0x75, 32, /* HID report size(32) */
0x95, 1, /* HID report count (1) */
0X81, 0x02, /* HID Input (Data_Var_Abs) */
0xC0 /* HID end collection */
};