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mouse: Add support for scaling of video-device coordinates

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Add a mouse_set_video() function to set up the video device associated
with the mouse. This allows mouse drivers to scale coordinates to match
the display resolution.

The video device information is stored in mouse_uc_priv rather than
being driver-specific, providing a common place for all mouse drivers to
access display dimensions for coordinate scaling.

Update expo_set_mouse_enable() to call mouse_set_video() to configure
the mouse with the display device.

Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2025-10-05 19:40:31 -06:00
parent 07680c67f8
commit e99d2dc8ec
3 changed files with 40 additions and 0 deletions
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17
drivers/input/mouse-uclass.c
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@@ -7,6 +7,7 @@
#include <dm.h>
#include <errno.h>
#include <mouse.h>
#include <video.h>
int mouse_get_event(struct udevice *dev, struct mouse_event *evt)
{
@@ -93,6 +94,22 @@ int mouse_set_ptr_visible(struct udevice *dev, bool visible)
return ops->set_ptr_visible(dev, visible);
}
int mouse_set_video(struct udevice *dev, struct udevice *video_dev)
{
struct mouse_uc_priv *uc_priv = dev_get_uclass_priv(dev);
uc_priv->video_dev = video_dev;
if (video_dev) {
uc_priv->video_width = video_get_xsize(video_dev);
uc_priv->video_height = video_get_ysize(video_dev);
} else {
uc_priv->video_width = 0;
uc_priv->video_height = 0;
}
return 0;
}
UCLASS_DRIVER(mouse) = {
.id = UCLASS_MOUSE,
.name = "mouse",