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HID: input: map battery system charging

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HID descriptors with Battery System (0x85) Charging (0x44) usage are
ignored and POWER_SUPPLY_STATUS_DISCHARGING is always reported to user
space, even when the device is charging.

Map this usage and when it is reported set the right charging status.

In addition, add KUnit tests to make sure that the charging status is
correctly set and reported. They can be run with the usual command:

    $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/hid

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
José Expósito
2022-11-24 18:59:37 +01:00
committed by Jiri Kosina
parent 2043f9a37d
commit a608dc1c06
5 changed files with 118 additions and 2 deletions
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2
include/linux/hid.h
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@@ -312,6 +312,7 @@ struct hid_item {
#define HID_DG_LATENCYMODE 0x000d0060
#define HID_BAT_ABSOLUTESTATEOFCHARGE 0x00850065
#define HID_BAT_CHARGING 0x00850044
#define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
@@ -611,6 +612,7 @@ struct hid_device { /* device report descriptor */
__s32 battery_max;
__s32 battery_report_type;
__s32 battery_report_id;
__s32 battery_charge_status;
enum hid_battery_status battery_status;
bool battery_avoid_query;
ktime_t battery_ratelimit_time;