Add parameter "touchpad_mouse" to enable disabling or re-enabling exposing the
touchpad input_dev, which can be changed while the module is loaded.
Signed-off-by: Vicki Pfau <vi@xxxxxxxxxxx>
---
drivers/hid/hid-playstation.c | 41 +++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
diff --git a/drivers/hid/hid-playstation.c b/drivers/hid/hid-playstation.c
index f859a8dd8a2e..ad0da4470615 100644
--- a/drivers/hid/hid-playstation.c
+++ b/drivers/hid/hid-playstation.c
@@ -23,6 +23,8 @@ static LIST_HEAD(ps_devices_list);
static DEFINE_IDA(ps_player_id_allocator);
+static bool touchpad_mouse = true;
+
#define HID_PLAYSTATION_VERSION_PATCH 0x8000
/* Base class for playstation devices. */
@@ -1343,6 +1345,45 @@ static void ps_remove(struct hid_device *hdev)
hid_hw_stop(hdev);
}
+static int ps_param_set_touchpad_mouse(const char *val,
+ const struct kernel_param *kp)
+{
+ struct ps_device *dev;
+ struct dualsense *ds;
+ struct input_dev *touchpad;
+ int ret;
+
+ ret = param_set_bool(val, kp);
+ if (ret)
+ return ret;
+
+ mutex_lock(&ps_devices_lock);
+ list_for_each_entry(dev, &ps_devices_list, list) {
+ mutex_lock(&dev->mutex);
+ if (dev->hdev->product == USB_DEVICE_ID_SONY_PS5_CONTROLLER) {
+ ds = container_of(dev, struct dualsense, base);
+ if (touchpad_mouse) {
+ touchpad = ps_touchpad_create(dev->hdev, DS_TOUCHPAD_WIDTH, DS_TOUCHPAD_HEIGHT, 2);
+ if (IS_ERR(touchpad))
+ continue;
+ rcu_assign_pointer(ds->touchpad, touchpad);
+ } else
+ dualsense_unregister_touchpad(ds);
+ }
+ mutex_unlock(&dev->mutex);
+ }
+ mutex_unlock(&ps_devices_lock);
+ return 0;
+}
+
+static const struct kernel_param_ops ps_touchpad_mouse_ops = {
+ .set = ps_param_set_touchpad_mouse,
+ .get = param_get_bool,
+};
+
+module_param_cb(touchpad_mouse, &ps_touchpad_mouse_ops, &touchpad_mouse, 0644);
+MODULE_PARM_DESC(touchpad_mouse, "Enable mouse emulation using the touchpad");
+
static const struct hid_device_id ps_devices[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS5_CONTROLLER) },
--
2.36.0
