Merge tag 'u-boot-stm32-20210618' of https://source.denx.de/u-boot/custodians/u-boot...

[platform/kernel/u-boot.git] / include / video_console.h

diff --git a/include/video_console.h b/include/video_console.h
index d3bc063..06b798e 100644 (file)
--- a/include/video_console.h
+++ b/include/video_console.h
@@ -256,4 +256,53 @@ void vidconsole_position_cursor(struct udevice *dev, unsigned col,
  */
 u32 vid_console_color(struct video_priv *priv, unsigned int idx);
 
+#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 vidconsole_sync_copy(struct udevice *dev, void *from, void *to);
+
+/**
+ * vidconsole_memmove() - Perform a memmove() within the frame buffer
+ *
+ * This handles a memmove(), e.g. for scrolling. It also updates the copy
+ * framebuffer.
+ *
+ * @dev: Vidconsole device being updated
+ * @dst: Destination address within the framebuffer (->fb)
+ * @src: Source address within the framebuffer (->fb)
+ * @size: Number of bytes to transfer
+ * @return 0 if OK, -EFAULT if the start address is before the start of the
+ *     frame buffer start
+ */
+int vidconsole_memmove(struct udevice *dev, void *dst, const void *src,
+                      int size);
+#else
+static inline int vidconsole_sync_copy(struct udevice *dev, void *from,
+                                      void *to)
+{
+       return 0;
+}
+
+static inline int vidconsole_memmove(struct udevice *dev, void *dst,
+                                    const void *src, int size)
+{
+       memmove(dst, src, size);
+
+       return 0;
+}
+
+#endif
+
 #endif