|
@@ -30,11 +30,14 @@ struct udevice;
|
|
|
* buffer should start on. If 0, 1MB is assumed
|
|
|
* @size: Frame-buffer size, in bytes
|
|
|
* @base: Base address of frame buffer, 0 if not yet known
|
|
|
+ * @copy_base: Base address of a hardware copy of the frame buffer. See
|
|
|
+ * CONFIG_VIDEO_COPY.
|
|
|
*/
|
|
|
struct video_uc_platdata {
|
|
|
uint align;
|
|
|
uint size;
|
|
|
ulong base;
|
|
|
+ ulong copy_base;
|
|
|
};
|
|
|
|
|
|
enum video_polarity {
|
|
@@ -75,6 +78,8 @@ enum video_log2_bpp {
|
|
|
* @font_size: Font size in pixels (0 to use a default value)
|
|
|
* @fb: Frame buffer
|
|
|
* @fb_size: Frame buffer size
|
|
|
+ * @copy_fb: Copy of the frame buffer to keep up to date; see struct
|
|
|
+ * video_uc_platdata
|
|
|
* @line_length: Length of each frame buffer line, in bytes. This can be
|
|
|
* set by the driver, but if not, the uclass will set it after
|
|
|
* probing
|
|
@@ -101,6 +106,7 @@ struct video_priv {
|
|
|
*/
|
|
|
void *fb;
|
|
|
int fb_size;
|
|
|
+ void *copy_fb;
|
|
|
int line_length;
|
|
|
u32 colour_fg;
|
|
|
u32 colour_bg;
|
|
@@ -214,6 +220,29 @@ void video_set_flush_dcache(struct udevice *dev, bool flush);
|
|
|
*/
|
|
|
void video_set_default_colors(struct udevice *dev, bool invert);
|
|
|
|
|
|
+#ifdef CONFIG_VIDEO_COPY
|
|
|
+/**
|
|
|
+ * vidconsole_sync_copy() - Sync back to the copy framebuffer
|
|
|
+ *
|
|
|
+ * This ensures that the copy framebuffer has the same data as the framebuffer
|
|
|
+ * for a particular region. It should be called after the framebuffer is updated
|
|
|
+ *
|
|
|
+ * @from and @to can be in either order. The region between them is synced.
|
|
|
+ *
|
|
|
+ * @dev: Vidconsole device being updated
|
|
|
+ * @from: Start/end address within the framebuffer (->fb)
|
|
|
+ * @to: Other address within the frame buffer
|
|
|
+ * @return 0 if OK, -EFAULT if the start address is before the start of the
|
|
|
+ * frame buffer start
|
|
|
+ */
|
|
|
+int video_sync_copy(struct udevice *dev, void *from, void *to);
|
|
|
+#else
|
|
|
+static inline int video_sync_copy(struct udevice *dev, void *from, void *to)
|
|
|
+{
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+#endif
|
|
|
+
|
|
|
#endif /* CONFIG_DM_VIDEO */
|
|
|
|
|
|
#ifndef CONFIG_DM_VIDEO
|