[U-Boot] [PATCH V5 1/4] lcd: add clear and draw bitmap declaration

[Che-Liang Chiou]

The functions for clearing and drawing bitmaps on the screen were not
exposed publicly and are made public in this patch in preparation for
implementing the display interface of api_public.h.

Signed-off-by: Che-Liang Chiou <clchiou at chromium.org>
---

Changes in V5
  Remove inline extern declaration from cmd_bmp.c

Changes in V4
  Remove support of video device, which is untested and will leave to
  future work

Changes in V3
  Rebase to ToT

Changes in V2
  Fix style errors


 common/cmd_bmp.c |    4 +---
 common/lcd.c     |   14 ++++++++++----
 include/lcd.h    |    2 ++
 3 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/common/cmd_bmp.c b/common/cmd_bmp.c
index 23fc82f..682f395 100644
--- a/common/cmd_bmp.c
+++ b/common/cmd_bmp.c
@@ -237,9 +237,7 @@ static int bmp_display(ulong addr, int x, int y)
 	}
 
 #if defined(CONFIG_LCD)
-	extern int lcd_display_bitmap (ulong, int, int);
-
-	ret = lcd_display_bitmap ((unsigned long)bmp, x, y);
+	ret = lcd_display_bitmap((ulong)bmp, x, y);
 #elif defined(CONFIG_VIDEO)
 	extern int video_display_bitmap (ulong, int, int);
 
diff --git a/common/lcd.c b/common/lcd.c
index d9cb8ca..6d91310 100644
--- a/common/lcd.c
+++ b/common/lcd.c
@@ -353,7 +353,14 @@ int drv_lcd_init (void)
 }
 
 /*----------------------------------------------------------------------*/
-static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
+static
+int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+	lcd_clear();
+	return 0;
+}
+
+void lcd_clear(void)
 {
 #if LCD_BPP == LCD_MONOCHROME
 	/* Setting the palette */
@@ -413,7 +419,7 @@ static int lcd_init (void *lcdbase)
 
 	lcd_ctrl_init (lcdbase);
 	lcd_is_enabled = 1;
-	lcd_clear (NULL, 1, 1, NULL);	/* dummy args */
+	lcd_clear();
 	lcd_enable ();
 
 	/* Initialize the console */
diff --git a/include/lcd.h b/include/lcd.h
index 0e098d9..39af14a 100644
--- a/include/lcd.h
+++ b/include/lcd.h
@@ -210,6 +210,8 @@ void	lcd_disable	(void);
 void	lcd_putc	(const char c);
 void	lcd_puts	(const char *s);
 void	lcd_printf	(const char *fmt, ...);
+void	lcd_clear(void);
+int	lcd_display_bitmap(ulong bmp_image, int x, int y);
 
 /* Allow boards to customize the information displayed */
 void lcd_show_board_info(void);
-- 
1.7.3.1