@@ -60,9 +60,20 @@ struct ps_device {
#define DS_STATUS_CHARGING GENMASK(7, 4)
#define DS_STATUS_CHARGING_SHIFT 4
+/* Status of a DualSense touch point contact.
+ * Contact IDs, with highest bit set are 'inactive'
+ * and any associated data is then invalid.
+ */
+#define DS_TOUCH_POINT_INACTIVE BIT(7)
+
+/* DualSense hardware limits */
+#define DS_TOUCHPAD_WIDTH 1920
+#define DS_TOUCHPAD_HEIGHT 1080
+
struct dualsense {
struct ps_device base;
struct input_dev *gamepad;
+ struct input_dev *touchpad;
};
struct dualsense_touch_point {
@@ -244,6 +255,34 @@ static struct input_dev *ps_gamepad_create(struct hid_device *hdev)
return gamepad;
}
+static struct input_dev *ps_touchpad_create(struct hid_device *hdev, int width, int height,
+ unsigned int num_contacts)
+{
+ struct input_dev *touchpad;
+ int ret;
+
+ touchpad = ps_allocate_input_dev(hdev, "Touchpad");
+ if (IS_ERR(touchpad))
+ return ERR_PTR(-ENOMEM);
+
+ /* Map button underneath touchpad to BTN_LEFT. */
+ input_set_capability(touchpad, EV_KEY, BTN_LEFT);
+ __set_bit(INPUT_PROP_BUTTONPAD, touchpad->propbit);
+
+ input_set_abs_params(touchpad, ABS_MT_POSITION_X, 0, width - 1, 0, 0);
+ input_set_abs_params(touchpad, ABS_MT_POSITION_Y, 0, height - 1, 0, 0);
+
+ ret = input_mt_init_slots(touchpad, num_contacts, INPUT_MT_POINTER);
+ if (ret)
+ return ERR_PTR(ret);
+
+ ret = input_register_device(touchpad);
+ if (ret)
+ return ERR_PTR(ret);
+
+ return touchpad;
+}
+
static int dualsense_get_mac_address(struct dualsense *ds)
{
uint8_t *buf;
@@ -281,6 +320,7 @@ static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *r
uint8_t battery_data, battery_capacity, charging_status, value;
int battery_status;
unsigned long flags;
+ int i;
/* DualSense in USB uses the full HID report for reportID 1, but
* Bluetooth uses a minimal HID report for reportID 1 and reports
@@ -321,6 +361,24 @@ static int dualsense_parse_report(struct ps_device *ps_dev, struct hid_report *r
input_report_key(ds->gamepad, BTN_MODE, ds_report->buttons[2] & DS_BUTTONS2_PS_HOME);
input_sync(ds->gamepad);
+ for (i = 0; i < 2; i++) {
+ bool active = (ds_report->points[i].contact & DS_TOUCH_POINT_INACTIVE) ? false : true;
+
+ input_mt_slot(ds->touchpad, i);
+ input_mt_report_slot_state(ds->touchpad, MT_TOOL_FINGER, active);
+
+ if (active) {
+ int x = (ds_report->points[i].x_hi << 8) | ds_report->points[i].x_lo;
+ int y = (ds_report->points[i].y_hi << 4) | ds_report->points[i].y_lo;
+
+ input_report_abs(ds->touchpad, ABS_MT_POSITION_X, x);
+ input_report_abs(ds->touchpad, ABS_MT_POSITION_Y, y);
+ }
+ }
+ input_mt_sync_frame(ds->touchpad);
+ input_report_key(ds->touchpad, BTN_LEFT, ds_report->buttons[2] & DS_BUTTONS2_TOUCHPAD);
+ input_sync(ds->touchpad);
+
battery_data = ds_report->status & DS_STATUS_BATTERY_CAPACITY;
charging_status = (ds_report->status & DS_STATUS_CHARGING) >> DS_STATUS_CHARGING_SHIFT;
@@ -394,6 +452,12 @@ static struct ps_device *dualsense_create(struct hid_device *hdev)
goto err;
}
+ ds->touchpad = ps_touchpad_create(hdev, DS_TOUCHPAD_WIDTH, DS_TOUCHPAD_HEIGHT, 2);
+ if (IS_ERR(ds->touchpad)) {
+ ret = PTR_ERR(ds->touchpad);
+ goto err;
+ }
+
ret = ps_device_register_battery(ps_dev);
if (ret < 0)
goto err;