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| author | Simon Glass <sjg@chromium.org> | 2023-10-01 19:13:21 -0600 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2023-10-11 15:43:55 -0400 |
| commit | 37db20d0a64132a7ae3d0223de6b93167d60bea4 (patch) | |
| tree | bf99fa1818795e3cc56c1eb9fb72c8a333161569 /drivers/video/vidconsole-uclass.c | |
| parent | 617d7b545b6fa555f47944a10b1a1b261491e3b9 (diff) | |
| download | u-boot-37db20d0a64132a7ae3d0223de6b93167d60bea4.zip u-boot-37db20d0a64132a7ae3d0223de6b93167d60bea4.tar.gz u-boot-37db20d0a64132a7ae3d0223de6b93167d60bea4.tar.bz2 | |
video: Support showing a cursor
Add rudimentary support for displaying a cursor on a vidconsole. This
helps the user to see where text is being entered.
The implementation so far is very simple: the cursor is just a vertical
bar of fixed width and cannot be erased. To erase the cursor, the text
must be redrawn over it.
This is good enough for expo but will need enhancement to be useful for
the command-line console. For example, it could save and restore the
area behind the cursor.
For now, enable this only for expo, to reduce code size.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/video/vidconsole-uclass.c')
| -rw-r--r-- | drivers/video/vidconsole-uclass.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/video/vidconsole-uclass.c b/drivers/video/vidconsole-uclass.c index 2f3f685..22d55df 100644 --- a/drivers/video/vidconsole-uclass.c +++ b/drivers/video/vidconsole-uclass.c @@ -672,6 +672,21 @@ int vidconsole_entry_restore(struct udevice *dev, struct abuf *buf) return 0; } +int vidconsole_set_cursor_visible(struct udevice *dev, bool visible, + uint x, uint y, uint index) +{ + struct vidconsole_ops *ops = vidconsole_get_ops(dev); + int ret; + + if (ops->set_cursor_visible) { + ret = ops->set_cursor_visible(dev, visible, x, y, index); + if (ret != -ENOSYS) + return ret; + } + + return 0; +} + void vidconsole_push_colour(struct udevice *dev, enum colour_idx fg, enum colour_idx bg, struct vidconsole_colour *old) { |