X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fvideo_console.h;h=06b798ef10c5f26d53902745ba786a5de2ee55df;hb=355d1e24f6143c4839be3c015c191421c4e9449c;hp=63af741778d286f4fd85e6332b35139a6d70d1ff;hpb=83d290c56fab2d38cd1ab4c4cc7099559c1d5046;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/video_console.h b/include/video_console.h
index 63af741..06b798e 100644
--- a/include/video_console.h
+++ b/include/video_console.h
@@ -8,6 +8,8 @@
 
 #include <video.h>
 
+struct video_priv;
+
 #define VID_FRAC_DIV	256
 
 #define VID_TO_PIXEL(x)	((x) / VID_FRAC_DIV)
@@ -43,20 +45,22 @@ enum color_idx {
  * Drivers must set up @rows, @cols, @x_charsize, @y_charsize in their probe()
  * method. Drivers may set up @xstart_frac if desired.
  *
- * @sdev:	stdio device, acting as an output sink
- * @xcur_frac:	Current X position, in fractional units (VID_TO_POS(x))
- * @curr_row:	Current Y position in pixels (0=top)
- * @rows:	Number of text rows
- * @cols:	Number of text columns
- * @x_charsize:	Character width in pixels
- * @y_charsize:	Character height in pixels
+ * @sdev:		stdio device, acting as an output sink
+ * @xcur_frac:		Current X position, in fractional units (VID_TO_POS(x))
+ * @ycur:		Current Y position in pixels (0=top)
+ * @rows:		Number of text rows
+ * @cols:		Number of text columns
+ * @x_charsize:		Character width in pixels
+ * @y_charsize:		Character height in pixels
  * @tab_width_frac:	Tab width in fractional units
- * @xsize_frac:	Width of the display in fractional units
+ * @xsize_frac:		Width of the display in fractional units
  * @xstart_frac:	Left margin for the text console in fractional units
- * @last_ch:	Last character written to the text console on this line
- * @escape:	TRUE if currently accumulating an ANSI escape sequence
- * @escape_len:	Length of accumulated escape sequence so far
- * @escape_buf:	Buffer to accumulate escape sequence
+ * @last_ch:		Last character written to the text console on this line
+ * @escape:		TRUE if currently accumulating an ANSI escape sequence
+ * @escape_len:		Length of accumulated escape sequence so far
+ * @col_saved:		Saved X position, in fractional units (VID_TO_POS(x))
+ * @row_saved:		Saved Y position in pixels (0=top)
+ * @escape_buf:		Buffer to accumulate escape sequence
  */
 struct vidconsole_priv {
 	struct stdio_dev sdev;
@@ -77,6 +81,8 @@ struct vidconsole_priv {
 	 */
 	int escape;
 	int escape_len;
+	int row_saved;
+	int col_saved;
 	char escape_buf[32];
 };
 
@@ -211,6 +217,22 @@ int vidconsole_set_row(struct udevice *dev, uint row, int clr);
 int vidconsole_put_char(struct udevice *dev, char ch);
 
 /**
+ * vidconsole_put_string() - Output a string to the current console position
+ *
+ * Outputs a string to the console and advances the cursor. This function
+ * handles wrapping to new lines and scrolling the console. Special
+ * characters are handled also: \n, \r, \b and \t.
+ *
+ * The device always starts with the cursor at position 0,0 (top left). It
+ * can be adjusted manually using vidconsole_position_cursor().
+ *
+ * @dev:	Device to adjust
+ * @str:	String to write
+ * @return 0 if OK, -ve on error
+ */
+int vidconsole_put_string(struct udevice *dev, const char *str);
+
+/**
  * vidconsole_position_cursor() - Move the text cursor
  *
  * @dev:	Device to adjust
@@ -221,8 +243,6 @@ int vidconsole_put_char(struct udevice *dev, char ch);
 void vidconsole_position_cursor(struct udevice *dev, unsigned col,
 				unsigned row);
 
-#ifdef CONFIG_DM_VIDEO
-
 /**
  * vid_console_color() - convert a color code to a pixel's internal
  * representation
@@ -236,6 +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