diff options
| -rw-r--r-- | drivers/hid/hid-playstation.c | 66 |
1 files changed, 63 insertions, 3 deletions
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c index 20111aa20e86..63fc3a67ea74 100644 --- a/drivers/hid/hid-playstation.c +++ b/drivers/hid/hid-playstation.c @@ -291,17 +291,43 @@ struct dualsense_output_report { #define DS4_FEATURE_REPORT_PAIRING_INFO 0x12 #define DS4_FEATURE_REPORT_PAIRING_INFO_SIZE 16 +/* + * Status of a DualShock4 touch point contact. + * Contact IDs, with highest bit set are 'inactive' + * and any associated data is then invalid. + */ +#define DS4_TOUCH_POINT_INACTIVE BIT(7) + /* Status field of DualShock4 input report. */ #define DS4_STATUS0_BATTERY_CAPACITY GENMASK(3, 0) #define DS4_STATUS0_CABLE_STATE BIT(4) /* Battery status within batery_status field. */ #define DS4_BATTERY_STATUS_FULL 11 +/* DualShock4 hardware limits */ +#define DS4_TOUCHPAD_WIDTH 1920 +#define DS4_TOUCHPAD_HEIGHT 942 + struct dualshock4 { struct ps_device base; struct input_dev *gamepad; + struct input_dev *touchpad; }; +struct dualshock4_touch_point { + uint8_t contact; + uint8_t x_lo; + uint8_t x_hi:4, y_lo:4; + uint8_t y_hi; +} __packed; +static_assert(sizeof(struct dualshock4_touch_point) == 4); + +struct dualshock4_touch_report { + uint8_t timestamp; + struct dualshock4_touch_point points[2]; +} __packed; +static_assert(sizeof(struct dualshock4_touch_report) == 9); + /* Main DualShock4 input report excluding any BT/USB specific headers. */ struct dualshock4_input_report_common { uint8_t x, y; @@ -317,7 +343,9 @@ static_assert(sizeof(struct dualshock4_input_report_common) == 32); struct dualshock4_input_report_usb { uint8_t report_id; /* 0x01 */ struct dualshock4_input_report_common common; - uint8_t reserved[31]; + uint8_t num_touch_reports; + struct dualshock4_touch_report touch_reports[3]; + uint8_t reserved[3]; } __packed; static_assert(sizeof(struct dualshock4_input_report_usb) == DS4_INPUT_REPORT_USB_SIZE); @@ -1556,8 +1584,9 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * struct hid_device *hdev = ps_dev->hdev; struct dualshock4 *ds4 = container_of(ps_dev, struct dualshock4, base); struct dualshock4_input_report_common *ds4_report; - uint8_t battery_capacity, value; - int battery_status; + struct dualshock4_touch_report *touch_reports; + uint8_t battery_capacity, num_touch_reports, value; + int battery_status, i, j; unsigned long flags; /* @@ -1570,6 +1599,8 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * struct dualshock4_input_report_usb *usb = (struct dualshock4_input_report_usb *)data; ds4_report = &usb->common; + num_touch_reports = usb->num_touch_reports; + touch_reports = usb->touch_reports; } else { hid_err(hdev, "Unhandled reportID=%d\n", report->id); return -1; @@ -1603,6 +1634,29 @@ static int dualshock4_parse_report(struct ps_device *ps_dev, struct hid_report * input_report_key(ds4->gamepad, BTN_MODE, ds4_report->buttons[2] & DS_BUTTONS2_PS_HOME); input_sync(ds4->gamepad); + for (i = 0; i < num_touch_reports; i++) { + struct dualshock4_touch_report *touch_report = &touch_reports[i]; + + for (j = 0; j < ARRAY_SIZE(touch_report->points); j++) { + struct dualshock4_touch_point *point = &touch_report->points[j]; + bool active = (point->contact & DS4_TOUCH_POINT_INACTIVE) ? false : true; + + input_mt_slot(ds4->touchpad, j); + input_mt_report_slot_state(ds4->touchpad, MT_TOOL_FINGER, active); + + if (active) { + int x = (point->x_hi << 8) | point->x_lo; + int y = (point->y_hi << 4) | point->y_lo; + + input_report_abs(ds4->touchpad, ABS_MT_POSITION_X, x); + input_report_abs(ds4->touchpad, ABS_MT_POSITION_Y, y); + } + } + input_mt_sync_frame(ds4->touchpad); + input_sync(ds4->touchpad); + } + input_report_key(ds4->touchpad, BTN_LEFT, ds4_report->buttons[2] & DS_BUTTONS2_TOUCHPAD); + /* * Interpretation of the battery_capacity data depends on the cable state. * When no cable is connected (bit4 is 0): @@ -1700,6 +1754,12 @@ static struct ps_device *dualshock4_create(struct hid_device *hdev) goto err; } + ds4->touchpad = ps_touchpad_create(hdev, DS4_TOUCHPAD_WIDTH, DS4_TOUCHPAD_HEIGHT, 2); + if (IS_ERR(ds4->touchpad)) { + ret = PTR_ERR(ds4->touchpad); + goto err; + } + ret = ps_device_register_battery(ps_dev); if (ret) goto err; |