diff mbox series

[Concept,04/14] mouse: Add method to show/hide the system pointer

Message ID 20251006205856.2009292-5-sjg@u-boot.org
State New
Headers
Series expo: More mouse development for expo |

Commit Message

Simon Glass Oct. 6, 2025, 8:58 p.m. UTC 
  From: Simon Glass <sjg@chromium.org>

Add a new set_ptr_visible() method to the mouse uclass to allow hiding
and showing the system mouse pointer. This is useful with sandbox when
rendering a custom mouse pointer, such as in expo mode.

The method is optional and returns -ENOSYS if not supported by the
driver.

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
---

 drivers/input/mouse-uclass.c | 10 ++++++++++
 include/mouse.h              | 24 ++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
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Patch

diff --git a/drivers/input/mouse-uclass.c b/drivers/input/mouse-uclass.c
index ee983397ef3..efb52d3377b 100644
--- a/drivers/input/mouse-uclass.c
+++ b/drivers/input/mouse-uclass.c
@@ -83,6 +83,16 @@  int mouse_get_pos(struct udevice *dev, struct vid_pos *pos)
 	return 0;
 }
 
+int mouse_set_ptr_visible(struct udevice *dev, bool visible)
+{
+	struct mouse_ops *ops = mouse_get_ops(dev);
+
+	if (!ops->set_ptr_visible)
+		return -ENOSYS;
+
+	return ops->set_ptr_visible(dev, visible);
+}
+
 UCLASS_DRIVER(mouse) = {
 	.id		= UCLASS_MOUSE,
 	.name		= "mouse",
diff --git a/include/mouse.h b/include/mouse.h
index 8212a1e89d4..98f54f73d88 100644
--- a/include/mouse.h
+++ b/include/mouse.h
@@ -99,6 +99,18 @@  struct mouse_ops {
 	 * supported
 	 */
 	int (*get_event)(struct udevice *dev, struct mouse_event *event);
+
+	/**
+	 * set_ptr_visible() - Show or hide the system mouse pointer
+	 *
+	 * This is used to hide the system pointer when expo is rendering its
+	 * own custom mouse pointer.
+	 *
+	 * @dev: Mouse device
+	 * @visible: true to show the pointer, false to hide it
+	 * Returns: 0 if OK, -ENOSYS if not supported
+	 */
+	int (*set_ptr_visible)(struct udevice *dev, bool visible);
 };
 
 #define mouse_get_ops(dev)	((struct mouse_ops *)(dev)->driver->ops)
@@ -135,4 +147,16 @@  int mouse_get_click(struct udevice *dev, struct vid_pos *pos);
  */
 int mouse_get_pos(struct udevice *dev, struct vid_pos *pos);
 
+/**
+ * mouse_set_ptr_visible() - Show or hide the system mouse pointer
+ *
+ * This is used to hide the system pointer when rendering a custom mouse
+ * pointer (e.g., in expo mode).
+ *
+ * @dev: Mouse device
+ * @visible: true to show the pointer, false to hide it
+ * Returns: 0 if OK, -ENOSYS if not supported
+ */
+int mouse_set_ptr_visible(struct udevice *dev, bool visible);
+
 #endif