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| author | Alistair Francis <alistair@alistair23.me> | 2021-12-08 22:40:43 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 09:04:25 +0100 |
| commit | 602bc474b0ef7af5e0419737fc1d7ae74ed51efd (patch) | |
| tree | 17908aaa125ebcfe82395fe82c6bb288a934d341 | |
| parent | f6d5eb174ee9b9ca4911b98f243f149fbfd19a43 (diff) | |
| download | linux-stable-602bc474b0ef7af5e0419737fc1d7ae74ed51efd.tar.gz linux-stable-602bc474b0ef7af5e0419737fc1d7ae74ed51efd.tar.bz2 linux-stable-602bc474b0ef7af5e0419737fc1d7ae74ed51efd.zip | |
HID: quirks: Allow inverting the absolute X/Y values
[ Upstream commit fd8d135b2c5e88662f2729e034913f183455a667 ]
Add a HID_QUIRK_X_INVERT/HID_QUIRK_Y_INVERT quirk that can be used
to invert the X/Y values.
Signed-off-by: Alistair Francis <alistair@alistair23.me>
[bentiss: silence checkpatch warning]
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Link: https://lore.kernel.org/r/20211208124045.61815-2-alistair@alistair23.me
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/hid/hid-input.c | 6 | ||||
| -rw-r--r-- | include/linux/hid.h | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index d56ef395eb69..dd3f4aa05298 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1246,6 +1246,12 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct input = field->hidinput->input; + if (usage->type == EV_ABS && + (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) || + ((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y))) { + value = field->logical_maximum - value; + } + if (usage->hat_min < usage->hat_max || usage->hat_dir) { int hat_dir = usage->hat_dir; if (!hat_dir) diff --git a/include/linux/hid.h b/include/linux/hid.h index da824ba9fb9a..c51ebce2197e 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -353,6 +353,8 @@ struct hid_item { /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */ #define HID_QUIRK_ALWAYS_POLL BIT(10) #define HID_QUIRK_INPUT_PER_APP BIT(11) +#define HID_QUIRK_X_INVERT BIT(12) +#define HID_QUIRK_Y_INVERT BIT(13) #define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16) #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17) #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18) |