| Message ID | 20211021095107.116292-1-alistair@alistair23.me (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v12,1/3] HID: quirks: Allow inverting the absolute X/Y values | expand |
On Thu, Oct 21, 2021 at 11:51 AM Alistair Francis <alistair@alistair23.me> wrote: > > Add a HID_QUIRK_XY_INVERT quirk that can be used to invert the X/Y > values. > > Signed-off-by: Alistair Francis <alistair@alistair23.me> > --- > drivers/hid/hid-input.c | 7 +++++++ > include/linux/hid.h | 1 + > 2 files changed, 8 insertions(+) > > diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c > index 4b5ebeacd283..0a9634473940 100644 > --- a/drivers/hid/hid-input.c > +++ b/drivers/hid/hid-input.c > @@ -1328,6 +1328,13 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct > > input = field->hidinput->input; > > + if (*quirks & HID_QUIRK_XY_INVERT) { > + if (usage->type == EV_ABS && > + (usage->code == ABS_X || usage->code == ABS_Y)) { I think I would prefer to have one quirk per axis if we go this route. Cheers, Benjamin > + 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 9e067f937dbc..a6e91ee5b3de 100644 > --- a/include/linux/hid.h > +++ b/include/linux/hid.h > @@ -349,6 +349,7 @@ 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_XY_INVERT BIT(12) > #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) > -- > 2.31.1 >
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 4b5ebeacd283..0a9634473940 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1328,6 +1328,13 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct input = field->hidinput->input; + if (*quirks & HID_QUIRK_XY_INVERT) { + if (usage->type == EV_ABS && + (usage->code == ABS_X || 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 9e067f937dbc..a6e91ee5b3de 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -349,6 +349,7 @@ 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_XY_INVERT BIT(12) #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)
Add a HID_QUIRK_XY_INVERT quirk that can be used to invert the X/Y values. Signed-off-by: Alistair Francis <alistair@alistair23.me> --- drivers/hid/hid-input.c | 7 +++++++ include/linux/hid.h | 1 + 2 files changed, 8 insertions(+)