diff options
Diffstat (limited to 'drivers/hid/hid-multitouch.c')
| -rw-r--r-- | drivers/hid/hid-multitouch.c | 70 |
1 files changed, 64 insertions, 6 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c index b41001e02da7..294516a8f541 100644 --- a/drivers/hid/hid-multitouch.c +++ b/drivers/hid/hid-multitouch.c @@ -73,6 +73,7 @@ MODULE_LICENSE("GPL"); #define MT_QUIRK_FORCE_MULTI_INPUT BIT(20) #define MT_QUIRK_DISABLE_WAKEUP BIT(21) #define MT_QUIRK_ORIENTATION_INVERT BIT(22) +#define MT_QUIRK_APPLE_TOUCHBAR BIT(23) #define MT_INPUTMODE_TOUCHSCREEN 0x02 #define MT_INPUTMODE_TOUCHPAD 0x03 @@ -220,6 +221,7 @@ static void mt_post_parse(struct mt_device *td, struct mt_application *app); #define MT_CLS_GOOGLE 0x0111 #define MT_CLS_RAZER_BLADE_STEALTH 0x0112 #define MT_CLS_SMART_TECH 0x0113 +#define MT_CLS_APPLE_TOUCHBAR 0x0114 #define MT_CLS_SIS 0x0457 #define MT_DEFAULT_MAXCONTACT 10 @@ -405,6 +407,12 @@ static const struct mt_class mt_classes[] = { MT_QUIRK_CONTACT_CNT_ACCURATE | MT_QUIRK_SEPARATE_APP_REPORT, }, + { .name = MT_CLS_APPLE_TOUCHBAR, + .quirks = MT_QUIRK_HOVERING | + MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE | + MT_QUIRK_APPLE_TOUCHBAR, + .maxcontacts = 11, + }, { .name = MT_CLS_SIS, .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | MT_QUIRK_ALWAYS_VALID | @@ -625,6 +633,7 @@ static struct mt_application *mt_find_application(struct mt_device *td, static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, struct hid_report *report) { + struct mt_class *cls = &td->mtclass; struct mt_report_data *rdata; struct hid_field *field; int r, n; @@ -649,7 +658,11 @@ static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, if (field->logical == HID_DG_FINGER || td->hdev->group != HID_GROUP_MULTITOUCH_WIN_8) { for (n = 0; n < field->report_count; n++) { - if (field->usage[n].hid == HID_DG_CONTACTID) { + unsigned int hid = field->usage[n].hid; + + if (hid == HID_DG_CONTACTID || + (cls->quirks & MT_QUIRK_APPLE_TOUCHBAR && + hid == HID_DG_TRANSDUCER_INDEX)) { rdata->is_mt_collection = true; break; } @@ -821,12 +834,31 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, MT_STORE_FIELD(confidence_state); return 1; + case HID_DG_TOUCH: + /* + * Legacy devices use TIPSWITCH and not TOUCH. + * One special case here is of the Apple Touch Bars. + * In these devices, the tip state is contained in + * fields with the HID_DG_TOUCH usage. + * Let's just ignore this field for other devices. + */ + if (!(cls->quirks & MT_QUIRK_APPLE_TOUCHBAR)) + return -1; + fallthrough; case HID_DG_TIPSWITCH: if (field->application != HID_GD_SYSTEM_MULTIAXIS) input_set_capability(hi->input, EV_KEY, BTN_TOUCH); MT_STORE_FIELD(tip_state); return 1; + case HID_DG_TRANSDUCER_INDEX: + /* + * Contact ID in case of Apple Touch Bars is contained + * in fields with HID_DG_TRANSDUCER_INDEX usage. + */ + if (!(cls->quirks & MT_QUIRK_APPLE_TOUCHBAR)) + return 0; + fallthrough; case HID_DG_CONTACTID: MT_STORE_FIELD(contactid); app->touches_by_report++; @@ -883,10 +915,6 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, case HID_DG_CONTACTMAX: /* contact max are global to the report */ return -1; - case HID_DG_TOUCH: - /* Legacy devices use TIPSWITCH and not TOUCH. - * Let's just ignore this field. */ - return -1; } /* let hid-input decide for the others */ return 0; @@ -1314,6 +1342,13 @@ static int mt_touch_input_configured(struct hid_device *hdev, struct input_dev *input = hi->input; int ret; + /* + * HID_DG_CONTACTMAX field is not present on Apple Touch Bars, + * but the maximum contact count is greater than the default. + */ + if (cls->quirks & MT_QUIRK_APPLE_TOUCHBAR && cls->maxcontacts) + td->maxcontacts = cls->maxcontacts; + if (!td->maxcontacts) td->maxcontacts = MT_DEFAULT_MAXCONTACT; @@ -1321,6 +1356,13 @@ static int mt_touch_input_configured(struct hid_device *hdev, if (td->serial_maybe) mt_post_parse_default_settings(td, app); + /* + * The application for Apple Touch Bars is HID_DG_TOUCHPAD, + * but these devices are direct. + */ + if (cls->quirks & MT_QUIRK_APPLE_TOUCHBAR) + app->mt_flags |= INPUT_MT_DIRECT; + if (cls->is_indirect) app->mt_flags |= INPUT_MT_POINTER; @@ -1823,6 +1865,11 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) if (ret != 0) return ret; + if (mtclass->name == MT_CLS_APPLE_TOUCHBAR && + !hid_find_field(hdev, HID_INPUT_REPORT, + HID_DG_TOUCHPAD, HID_DG_TRANSDUCER_INDEX)) + return -ENODEV; + if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID) mt_fix_const_fields(hdev, HID_DG_CONTACTID); @@ -2132,12 +2179,18 @@ static const struct hid_device_id mt_devices[] = { HID_DEVICE(BUS_I2C, HID_GROUP_GENERIC, USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_7010) }, - /* Lenovo X1 TAB Gen 2 */ + /* Lenovo X1 TAB Gen 1 */ { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB) }, + /* Lenovo X1 TAB Gen 2 */ + { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, + HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, + USB_VENDOR_ID_LENOVO, + USB_DEVICE_ID_LENOVO_X1_TAB2) }, + /* Lenovo X1 TAB Gen 3 */ { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, @@ -2314,6 +2367,11 @@ static const struct hid_device_id mt_devices[] = { MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR2) }, + /* Apple Touch Bar */ + { .driver_data = MT_CLS_APPLE_TOUCHBAR, + HID_USB_DEVICE(USB_VENDOR_ID_APPLE, + USB_DEVICE_ID_APPLE_TOUCHBAR_DISPLAY) }, + /* Google MT devices */ { .driver_data = MT_CLS_GOOGLE, HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE, |