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| author | Nikolai Kondrashov <spbnick@gmail.com> | 2022-04-14 13:09:35 +0200 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2022-04-21 10:05:48 +0200 |
| commit | 2112b49eaa5c5cffc22ddd8b3b09f7d20bf13819 (patch) | |
| tree | f0223d00d72a76e595e1fe796ac69fb944c96a6f /drivers/hid | |
| parent | f25df3532832c93b7857a61266e48fa0ab87bca7 (diff) | |
| download | linux-next-2112b49eaa5c5cffc22ddd8b3b09f7d20bf13819.tar.gz | |
HID: uclogic: Add support for bitmap dials
A bitmap dial sends reports with a dedicated bit per direction: 1 means
clockwise rotation, 2 means counterclockwise, as opposed to the normal
1 and -1 values.
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>
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-uclogic-core.c | 6 | ||||
| -rw-r--r-- | drivers/hid/hid-uclogic-params.h | 15 |
2 files changed, 20 insertions, 1 deletions
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c index 96f3fb8c492c..627f1d0c52f2 100644 --- a/drivers/hid/hid-uclogic-core.c +++ b/drivers/hid/hid-uclogic-core.c @@ -382,6 +382,12 @@ static int uclogic_raw_event_frame( } } + /* If need to, and can, transform the bitmap dial reports */ + if (frame->bitmap_dial_byte > 0 && frame->bitmap_dial_byte < size) { + if (data[frame->bitmap_dial_byte] == 2) + data[frame->bitmap_dial_byte] = -1; + } + return 0; } diff --git a/drivers/hid/hid-uclogic-params.h b/drivers/hid/hid-uclogic-params.h index 78965e683d20..e5ccc558abc3 100644 --- a/drivers/hid/hid-uclogic-params.h +++ b/drivers/hid/hid-uclogic-params.h @@ -153,6 +153,13 @@ struct uclogic_params_frame { * Zero if no reversal should be done. */ __s8 touch_ring_flip_at; + /* + * Offset of the bitmap dial byte, in the report. Zero if not present. + * Only valid if "id" is not zero. A bitmap dial sends reports with a + * dedicated bit per direction: 1 means clockwise rotation, 2 means + * counterclockwise, as opposed to the normal 1 and -1. + */ + unsigned int bitmap_dial_byte; }; /* @@ -230,6 +237,7 @@ extern int uclogic_params_init(struct uclogic_params *params, "\t\t.touch_ring_byte = %u\n" \ "\t\t.touch_ring_max = %hhd\n" \ "\t\t.touch_ring_flip_at = %hhd\n" \ + "\t\t.bitmap_dial_byte = %u\n" \ "\t},\n" \ "\t{\n" \ "\t\t.desc_ptr = %p\n" \ @@ -241,6 +249,7 @@ extern int uclogic_params_init(struct uclogic_params *params, "\t\t.touch_ring_byte = %u\n" \ "\t\t.touch_ring_max = %hhd\n" \ "\t\t.touch_ring_flip_at = %hhd\n" \ + "\t\t.bitmap_dial_byte = %u\n" \ "\t},\n" \ "\t{\n" \ "\t\t.desc_ptr = %p\n" \ @@ -252,6 +261,7 @@ extern int uclogic_params_init(struct uclogic_params *params, "\t\t.touch_ring_byte = %u\n" \ "\t\t.touch_ring_max = %hhd\n" \ "\t\t.touch_ring_flip_at = %hhd\n" \ + "\t\t.bitmap_dial_byte = %u\n" \ "\t},\n" \ "}\n" @@ -281,6 +291,7 @@ extern int uclogic_params_init(struct uclogic_params *params, (_params)->frame_list[0].touch_ring_byte, \ (_params)->frame_list[0].touch_ring_max, \ (_params)->frame_list[0].touch_ring_flip_at, \ + (_params)->frame_list[0].bitmap_dial_byte, \ (_params)->frame_list[1].desc_ptr, \ (_params)->frame_list[1].desc_size, \ (_params)->frame_list[1].id, \ @@ -290,6 +301,7 @@ extern int uclogic_params_init(struct uclogic_params *params, (_params)->frame_list[1].touch_ring_byte, \ (_params)->frame_list[1].touch_ring_max, \ (_params)->frame_list[1].touch_ring_flip_at, \ + (_params)->frame_list[1].bitmap_dial_byte, \ (_params)->frame_list[2].desc_ptr, \ (_params)->frame_list[2].desc_size, \ (_params)->frame_list[2].id, \ @@ -298,7 +310,8 @@ extern int uclogic_params_init(struct uclogic_params *params, (_params)->frame_list[2].dev_id_byte, \ (_params)->frame_list[2].touch_ring_byte, \ (_params)->frame_list[2].touch_ring_max, \ - (_params)->frame_list[2].touch_ring_flip_at + (_params)->frame_list[2].touch_ring_flip_at, \ + (_params)->frame_list[2].bitmap_dial_byte /* Get a replacement report descriptor for a tablet's interface. */ extern int uclogic_params_get_desc(const struct uclogic_params *params, |