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HID: uclogic: Always shift touch reports to zero

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Always decrement touch report values to have the range start with zero,
regardless if flipped or not. This fixes the future non-flipped touch
strip reports.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
Nikolai Kondrashov 2022-05-08 18:01:43 +02:00 committed by Jiri Kosina
parent caf7e93479
commit fbc08b4e8e
2 changed files with 9 additions and 8 deletions
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15
drivers/hid/hid-uclogic-core.c
View file

@ -386,15 +386,16 @@ static int uclogic_raw_event_frame(
}
/* If need to, and can, transform the touch ring reports */
if (frame->touch_byte > 0 && frame->touch_byte < size &&
frame->touch_flip_at != 0) {
if (frame->touch_byte > 0 && frame->touch_byte < size) {
__s8 value = data[frame->touch_byte];
if (value != 0) {
value = frame->touch_flip_at - value;
if (value < 0)
value = frame->touch_max + value;
data[frame->touch_byte] = value;
if (value != 0) {
if (frame->touch_flip_at != 0) {
value = frame->touch_flip_at - value;
if (value <= 0)
value = frame->touch_max + value;
}
data[frame->touch_byte] = value - 1;
}
}

2
drivers/hid/hid-uclogic-params.c
View file

@ -889,7 +889,7 @@ static int uclogic_params_huion_init(struct uclogic_params *params,
UCLOGIC_RDESC_V2_FRAME_TOUCH_DEV_ID_BYTE;
p.frame_list[1].touch_byte = 5;
p.frame_list[1].touch_max = 12;
p.frame_list[1].touch_flip_at = 6;
p.frame_list[1].touch_flip_at = 7;
/* Create v2 frame dial parameters */
rc = uclogic_params_frame_init_with_desc(