diff options
| author | Simon Glass <sjg@chromium.org> | 2022-10-06 08:36:08 -0600 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2022-10-30 20:01:40 +0100 |
| commit | 50d562c01ff0a9f500ed9821a74e841d6f6dc133 (patch) | |
| tree | eeceaec92a479ba0646c40b94e25d3199679547f | |
| parent | 820b5894c183c4b68798603f5a96412408e6b8cf (diff) | |
video: Allow filling the display with a colour
Generalise the video_clear() function to allow filling with a different
colour.
Tidy up the comments while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/video/video-uclass.c | 20 | ||||
| -rw-r--r-- | include/video.h | 13 |
2 files changed, 27 insertions, 6 deletions
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c index b258a8a00fc..9f22da02528 100644 --- a/drivers/video/video-uclass.c +++ b/drivers/video/video-uclass.c @@ -126,7 +126,7 @@ int video_reserve(ulong *addrp) return 0; } -int video_clear(struct udevice *dev) +int video_fill(struct udevice *dev, u32 colour) { struct video_priv *priv = dev_get_uclass_priv(dev); int ret; @@ -138,7 +138,7 @@ int video_clear(struct udevice *dev) u16 *end = priv->fb + priv->fb_size; while (ppix < end) - *ppix++ = priv->colour_bg; + *ppix++ = colour; break; } case VIDEO_BPP32: @@ -147,11 +147,11 @@ int video_clear(struct udevice *dev) u32 *end = priv->fb + priv->fb_size; while (ppix < end) - *ppix++ = priv->colour_bg; + *ppix++ = colour; break; } default: - memset(priv->fb, priv->colour_bg, priv->fb_size); + memset(priv->fb, colour, priv->fb_size); break; } ret = video_sync_copy(dev, priv->fb, priv->fb + priv->fb_size); @@ -161,6 +161,18 @@ int video_clear(struct udevice *dev) return video_sync(dev, false); } +int video_clear(struct udevice *dev) +{ + struct video_priv *priv = dev_get_uclass_priv(dev); + int ret; + + ret = video_fill(dev, priv->colour_bg); + if (ret) + return ret; + + return 0; +} + static const struct vid_rgb colours[VID_COLOUR_COUNT] = { { 0x00, 0x00, 0x00 }, /* black */ { 0xc0, 0x00, 0x00 }, /* red */ diff --git a/include/video.h b/include/video.h index 1c30aea73c0..4c216d851b6 100644 --- a/include/video.h +++ b/include/video.h @@ -185,14 +185,23 @@ u32 video_index_to_colour(struct video_priv *priv, unsigned int idx); int video_reserve(ulong *addrp); /** - * video_clear() - Clear a device's frame buffer to background color. + * video_clear() - Clear a device's frame buffer to background colour. * * @dev: Device to clear - * Return: 0 + * Return: 0 on success */ int video_clear(struct udevice *dev); /** + * video_fill() - Fill a device's frame buffer to a colour. + * + * @dev: Device to fill + * @colour: Colour to use, in the frame buffer's format + * Return: 0 on success + */ +int video_fill(struct udevice *dev, u32 colour); + +/** * video_sync() - Sync a device's frame buffer with its hardware * * @vid: Device to sync |