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HID: uclogic: Always shift touch reports to zero
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>
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2 changed files with 9 additions and 8 deletions
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@ -386,15 +386,16 @@ static int uclogic_raw_event_frame(
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}
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/* If need to, and can, transform the touch ring reports */
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if (frame->touch_byte > 0 && frame->touch_byte < size &&
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frame->touch_flip_at != 0) {
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if (frame->touch_byte > 0 && frame->touch_byte < size) {
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__s8 value = data[frame->touch_byte];
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if (value != 0) {
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value = frame->touch_flip_at - value;
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if (value < 0)
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value = frame->touch_max + value;
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data[frame->touch_byte] = value;
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if (value != 0) {
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if (frame->touch_flip_at != 0) {
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value = frame->touch_flip_at - value;
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if (value <= 0)
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value = frame->touch_max + value;
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}
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data[frame->touch_byte] = value - 1;
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}
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}
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@ -889,7 +889,7 @@ static int uclogic_params_huion_init(struct uclogic_params *params,
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UCLOGIC_RDESC_V2_FRAME_TOUCH_DEV_ID_BYTE;
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p.frame_list[1].touch_byte = 5;
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p.frame_list[1].touch_max = 12;
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p.frame_list[1].touch_flip_at = 6;
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p.frame_list[1].touch_flip_at = 7;
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/* Create v2 frame dial parameters */
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rc = uclogic_params_frame_init_with_desc(
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