drivers/video/cfb_console.c

/*
 * (C) Copyright 2002 ELTEC Elektronik AG
 * Frank Gottschling <fgottschling@eltec.de>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*
 * cfb_console.c
 *
 * Color Framebuffer Console driver for 8/15/16/24/32 bits per pixel.
 *
 * At the moment only the 8x16 font is tested and the font fore- and
 * background color is limited to black/white/gray colors. The Linux
 * logo can be placed in the upper left corner and additional board
 * information strings (that normaly goes to serial port) can be drawed.
 *
 * The console driver can use the standard PC keyboard interface (i8042)
 * for character input. Character output goes to a memory mapped video
 * framebuffer with little or big-endian organisation.
 * With environment setting 'console=serial' the console i/o can be
 * forced to serial port.

 The driver uses graphic specific defines/parameters/functions:

 (for SMI LynxE graphic chip)

 CONFIG_VIDEO_SMI_LYNXEM - use graphic driver for SMI 710,712,810
 VIDEO_FB_LITTLE_ENDIAN	 - framebuffer organisation default: big endian
 VIDEO_HW_RECTFILL	 - graphic driver supports hardware rectangle fill
 VIDEO_HW_BITBLT	 - graphic driver supports hardware bit blt

 Console Parameters are set by graphic drivers global struct:

 VIDEO_VISIBLE_COLS	     - x resolution
 VIDEO_VISIBLE_ROWS	     - y resolution
 VIDEO_PIXEL_SIZE	     - storage size in byte per pixel
 VIDEO_DATA_FORMAT	     - graphical data format GDF
 VIDEO_FB_ADRS		     - start of video memory

 CONFIG_I8042_KBD	     - AT Keyboard driver for i8042
 VIDEO_KBD_INIT_FCT	     - init function for keyboard
 VIDEO_TSTC_FCT		     - keyboard_tstc function
 VIDEO_GETC_FCT		     - keyboard_getc function

 CONFIG_CONSOLE_CURSOR	     - on/off drawing cursor is done with delay
			       loop in VIDEO_TSTC_FCT (i8042)
 CONFIG_SYS_CONSOLE_BLINK_COUNT     - value for delay loop - blink rate
 CONFIG_CONSOLE_TIME	     - display time/date in upper right corner,
			       needs CONFIG_CMD_DATE and CONFIG_CONSOLE_CURSOR
 CONFIG_VIDEO_LOGO	     - display Linux Logo in upper left corner
 CONFIG_VIDEO_BMP_LOGO	     - use bmp_logo instead of linux_logo
 CONFIG_CONSOLE_EXTRA_INFO   - display additional board information strings
			       that normaly goes to serial port. This define
			       requires a board specific function:
			       video_drawstring (VIDEO_INFO_X,
						 VIDEO_INFO_Y + i*VIDEO_FONT_HEIGHT,
						 info);
			       that fills a info buffer at i=row.
			       s.a: board/eltec/bab7xx.
CONFIG_VGA_AS_SINGLE_DEVICE  - If set the framebuffer device will be initialised
			       as an output only device. The Keyboard driver
			       will not be set-up. This may be used, if you
			       have none or more than one Keyboard devices
			       (USB Keyboard, AT Keyboard).

CONFIG_VIDEO_SW_CURSOR:	     - Draws a cursor after the last character. No
			       blinking is provided. Uses the macros CURSOR_SET
			       and CURSOR_OFF.
CONFIG_VIDEO_HW_CURSOR:	     - Uses the hardware cursor capability of the
			       graphic chip. Uses the macro CURSOR_SET.
			       ATTENTION: If booting an OS, the display driver
			       must disable the hardware register of the graphic
			       chip. Otherwise a blinking field is displayed
*/

#include <common.h>

#include <malloc.h>

/*****************************************************************************/
/* Console device defines with SMI graphic				     */
/* Any other graphic must change this section				     */
/*****************************************************************************/

#ifdef	CONFIG_VIDEO_SMI_LYNXEM

#define VIDEO_FB_LITTLE_ENDIAN
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif

/*****************************************************************************/
/* Defines for the CT69000 driver					     */
/*****************************************************************************/
#ifdef	CONFIG_VIDEO_CT69000

#define VIDEO_FB_LITTLE_ENDIAN
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif

/*****************************************************************************/
/* Defines for the SED13806 driver					     */
/*****************************************************************************/
#ifdef CONFIG_VIDEO_SED13806

#ifndef CONFIG_TOTAL5200
#define VIDEO_FB_LITTLE_ENDIAN
#endif
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif

/*****************************************************************************/
/* Defines for the SED13806 driver					     */
/*****************************************************************************/
#ifdef CONFIG_VIDEO_SM501

#ifdef CONFIG_HH405
#define VIDEO_FB_LITTLE_ENDIAN
#endif
#endif

/*****************************************************************************/
/* Defines for the MB862xx driver					     */
/*****************************************************************************/
#ifdef CONFIG_VIDEO_MB862xx

#ifdef CONFIG_VIDEO_CORALP
#define VIDEO_FB_LITTLE_ENDIAN
#endif
#ifdef CONFIG_VIDEO_MB862xx_ACCEL
#define VIDEO_HW_RECTFILL
#define VIDEO_HW_BITBLT
#endif
#endif

/*****************************************************************************/
/* Include video_fb.h after definitions of VIDEO_HW_RECTFILL etc	     */
/*****************************************************************************/
#include <video_fb.h>

/*****************************************************************************/
/* some Macros								     */
/*****************************************************************************/
#define VIDEO_VISIBLE_COLS	(pGD->winSizeX)
#define VIDEO_VISIBLE_ROWS	(pGD->winSizeY)
#define VIDEO_PIXEL_SIZE	(pGD->gdfBytesPP)
#define VIDEO_DATA_FORMAT	(pGD->gdfIndex)
#define VIDEO_FB_ADRS		(pGD->frameAdrs)

/*****************************************************************************/
/* Console device defines with i8042 keyboard controller		     */
/* Any other keyboard controller must change this section		     */
/*****************************************************************************/

#ifdef	CONFIG_I8042_KBD
#include <i8042.h>

#define VIDEO_KBD_INIT_FCT	i8042_kbd_init()
#define VIDEO_TSTC_FCT		i8042_tstc
#define VIDEO_GETC_FCT		i8042_getc
#endif

/*****************************************************************************/
/* Console device							     */
/*****************************************************************************/

#include <version.h>
#include <linux/types.h>
#include <stdio_dev.h>
#include <video_font.h>

#if defined(CONFIG_CMD_DATE)
#include <rtc.h>
#endif

#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
#include <watchdog.h>
#include <bmp_layout.h>

#ifdef CONFIG_SPLASH_SCREEN_ALIGN
#define BMP_ALIGN_CENTER	0x7FFF
#endif

#endif

/*****************************************************************************/
/* Cursor definition:							     */
/* CONFIG_CONSOLE_CURSOR:  Uses a timer function (see drivers/input/i8042.c) */
/*                         to let the cursor blink.			     */
/* CONFIG_VIDEO_SW_CURSOR: Draws a cursor after the last character. No	     */
/*			   blinking is provided. Uses the macros CURSOR_SET  */
/*			   and CURSOR_OFF.				     */
/* CONFIG_VIDEO_HW_CURSOR: Uses the hardware cursor capability of the	     */
/*			   graphic chip. Uses the macro CURSOR_SET.	     */
/*			   ATTENTION: If booting an OS, the display driver   */
/*			   must disable the hardware register of the graphic */
/*			   chip. Otherwise a blinking field is displayed     */
/*****************************************************************************/
#if !defined(CONFIG_CONSOLE_CURSOR) && \
    !defined(CONFIG_VIDEO_SW_CURSOR) && \
    !defined(CONFIG_VIDEO_HW_CURSOR)
/* no Cursor defined */
#define CURSOR_ON
#define CURSOR_OFF
#define CURSOR_SET
#endif

#ifdef	CONFIG_CONSOLE_CURSOR
#ifdef	CURSOR_ON
#error	only one of CONFIG_CONSOLE_CURSOR,CONFIG_VIDEO_SW_CURSOR,CONFIG_VIDEO_HW_CURSOR can be defined
#endif
void	console_cursor (int state);
#define CURSOR_ON console_cursor(1)
#define CURSOR_OFF console_cursor(0)
#define CURSOR_SET video_set_cursor()
#ifndef CONFIG_I8042_KBD
#warning Cursor drawing on/off needs timer function s.a. drivers/input/i8042.c
#endif
#else
#ifdef	CONFIG_CONSOLE_TIME
#error	CONFIG_CONSOLE_CURSOR must be defined for CONFIG_CONSOLE_TIME
#endif
#endif /* CONFIG_CONSOLE_CURSOR */

#ifdef	CONFIG_VIDEO_SW_CURSOR
#ifdef	CURSOR_ON
#error	only one of CONFIG_CONSOLE_CURSOR,CONFIG_VIDEO_SW_CURSOR,CONFIG_VIDEO_HW_CURSOR can be defined
#endif
void	console_cursor (int state);
#define CURSOR_ON console_cursor(1)
#define CURSOR_OFF console_cursor(0)
#define CURSOR_SET video_set_cursor()
#endif /* CONFIG_VIDEO_SW_CURSOR */


#ifdef CONFIG_VIDEO_HW_CURSOR
#ifdef	CURSOR_ON
#error	only one of CONFIG_CONSOLE_CURSOR,CONFIG_VIDEO_SW_CURSOR,CONFIG_VIDEO_HW_CURSOR can be defined
#endif
#define CURSOR_ON
#define CURSOR_OFF
#define CURSOR_SET video_set_hw_cursor(console_col * VIDEO_FONT_WIDTH, \
		  (console_row * VIDEO_FONT_HEIGHT) + video_logo_height)
#endif	/* CONFIG_VIDEO_HW_CURSOR */

#ifdef	CONFIG_VIDEO_LOGO
#ifdef	CONFIG_VIDEO_BMP_LOGO
#include <bmp_logo.h>
#define VIDEO_LOGO_WIDTH	BMP_LOGO_WIDTH
#define VIDEO_LOGO_HEIGHT	BMP_LOGO_HEIGHT
#define VIDEO_LOGO_LUT_OFFSET	BMP_LOGO_OFFSET
#define VIDEO_LOGO_COLORS	BMP_LOGO_COLORS

#else	/* CONFIG_VIDEO_BMP_LOGO */
#define LINUX_LOGO_WIDTH	80
#define LINUX_LOGO_HEIGHT	80
#define LINUX_LOGO_COLORS	214
#define LINUX_LOGO_LUT_OFFSET	0x20
#define __initdata
#include <linux_logo.h>
#define VIDEO_LOGO_WIDTH	LINUX_LOGO_WIDTH
#define VIDEO_LOGO_HEIGHT	LINUX_LOGO_HEIGHT
#define VIDEO_LOGO_LUT_OFFSET	LINUX_LOGO_LUT_OFFSET
#define VIDEO_LOGO_COLORS	LINUX_LOGO_COLORS
#endif	/* CONFIG_VIDEO_BMP_LOGO */
#define VIDEO_INFO_X		(VIDEO_LOGO_WIDTH)
#define VIDEO_INFO_Y		(VIDEO_FONT_HEIGHT/2)
#else	/* CONFIG_VIDEO_LOGO */
#define VIDEO_LOGO_WIDTH	0
#define VIDEO_LOGO_HEIGHT	0
#endif	/* CONFIG_VIDEO_LOGO */

#define VIDEO_COLS		VIDEO_VISIBLE_COLS
#define VIDEO_ROWS		VIDEO_VISIBLE_ROWS
#define VIDEO_SIZE		(VIDEO_ROWS*VIDEO_COLS*VIDEO_PIXEL_SIZE)
#define VIDEO_PIX_BLOCKS	(VIDEO_SIZE >> 2)
#define VIDEO_LINE_LEN		(VIDEO_COLS*VIDEO_PIXEL_SIZE)
#define VIDEO_BURST_LEN		(VIDEO_COLS/8)

#ifdef	CONFIG_VIDEO_LOGO
#define CONSOLE_ROWS		((VIDEO_ROWS - video_logo_height) / VIDEO_FONT_HEIGHT)
#else
#define CONSOLE_ROWS		(VIDEO_ROWS / VIDEO_FONT_HEIGHT)
#endif

#define CONSOLE_COLS		(VIDEO_COLS / VIDEO_FONT_WIDTH)
#define CONSOLE_ROW_SIZE	(VIDEO_FONT_HEIGHT * VIDEO_LINE_LEN)
#define CONSOLE_ROW_FIRST	(video_console_address)
#define CONSOLE_ROW_SECOND	(video_console_address + CONSOLE_ROW_SIZE)
#define CONSOLE_ROW_LAST	(video_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE)
#define CONSOLE_SIZE		(CONSOLE_ROW_SIZE * CONSOLE_ROWS)
#define CONSOLE_SCROLL_SIZE	(CONSOLE_SIZE - CONSOLE_ROW_SIZE)

/* Macros */
#ifdef	VIDEO_FB_LITTLE_ENDIAN
#define SWAP16(x)	 ((((x) & 0x00ff) << 8) | ( (x) >> 8))
#define SWAP32(x)	 ((((x) & 0x000000ff) << 24) | (((x) & 0x0000ff00) << 8)|\
			  (((x) & 0x00ff0000) >>  8) | (((x) & 0xff000000) >> 24) )
#define SHORTSWAP32(x)	 ((((x) & 0x000000ff) <<  8) | (((x) & 0x0000ff00) >> 8)|\
			  (((x) & 0x00ff0000) <<  8) | (((x) & 0xff000000) >> 8) )
#else
#define SWAP16(x)	 (x)
#define SWAP32(x)	 (x)
#if defined(VIDEO_FB_16BPP_WORD_SWAP)
#define SHORTSWAP32(x)	 ( ((x) >> 16) | ((x) << 16) )
#else
#define SHORTSWAP32(x)	 (x)
#endif
#endif

#if defined(DEBUG) || defined(DEBUG_CFB_CONSOLE)
#define PRINTD(x)	  printf(x)
#else
#define PRINTD(x)
#endif


#ifdef CONFIG_CONSOLE_EXTRA_INFO
extern void video_get_info_str (    /* setup a board string: type, speed, etc. */
    int line_number,	    /* location to place info string beside logo */
    char *info		    /* buffer for info string */
    );

#endif

/* Locals */
static GraphicDevice *pGD;	/* Pointer to Graphic array */

static void *video_fb_address;		/* frame buffer address */
static void *video_console_address;	/* console buffer start address */

static int video_logo_height = VIDEO_LOGO_HEIGHT;

static int cursor_state = 0;
static int old_col = 0;
static int old_row = 0;

static int console_col = 0; /* cursor col */
static int console_row = 0; /* cursor row */

static u32 eorx, fgx, bgx;  /* color pats */

static const int video_font_draw_table8[] = {
	    0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
	    0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
	    0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
	    0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff };

static const int video_font_draw_table15[] = {
	    0x00000000, 0x00007fff, 0x7fff0000, 0x7fff7fff };

static const int video_font_draw_table16[] = {
	    0x00000000, 0x0000ffff, 0xffff0000, 0xffffffff };

static const int video_font_draw_table24[16][3] = {
	    { 0x00000000, 0x00000000, 0x00000000 },
	    { 0x00000000, 0x00000000, 0x00ffffff },
	    { 0x00000000, 0x0000ffff, 0xff000000 },
	    { 0x00000000, 0x0000ffff, 0xffffffff },
	    { 0x000000ff, 0xffff0000, 0x00000000 },
	    { 0x000000ff, 0xffff0000, 0x00ffffff },
	    { 0x000000ff, 0xffffffff, 0xff000000 },
	    { 0x000000ff, 0xffffffff, 0xffffffff },
	    { 0xffffff00, 0x00000000, 0x00000000 },
	    { 0xffffff00, 0x00000000, 0x00ffffff },
	    { 0xffffff00, 0x0000ffff, 0xff000000 },
	    { 0xffffff00, 0x0000ffff, 0xffffffff },
	    { 0xffffffff, 0xffff0000, 0x00000000 },
	    { 0xffffffff, 0xffff0000, 0x00ffffff },
	    { 0xffffffff, 0xffffffff, 0xff000000 },
	    { 0xffffffff, 0xffffffff, 0xffffffff } };

static const int video_font_draw_table32[16][4] = {
	    { 0x00000000, 0x00000000, 0x00000000, 0x00000000 },
	    { 0x00000000, 0x00000000, 0x00000000, 0x00ffffff },
	    { 0x00000000, 0x00000000, 0x00ffffff, 0x00000000 },
	    { 0x00000000, 0x00000000, 0x00ffffff, 0x00ffffff },
	    { 0x00000000, 0x00ffffff, 0x00000000, 0x00000000 },
	    { 0x00000000, 0x00ffffff, 0x00000000, 0x00ffffff },
	    { 0x00000000, 0x00ffffff, 0x00ffffff, 0x00000000 },
	    { 0x00000000, 0x00ffffff, 0x00ffffff, 0x00ffffff },
	    { 0x00ffffff, 0x00000000, 0x00000000, 0x00000000 },
	    { 0x00ffffff, 0x00000000, 0x00000000, 0x00ffffff },
	    { 0x00ffffff, 0x00000000, 0x00ffffff, 0x00000000 },
	    { 0x00ffffff, 0x00000000, 0x00ffffff, 0x00ffffff },
	    { 0x00ffffff, 0x00ffffff, 0x00000000, 0x00000000 },
	    { 0x00ffffff, 0x00ffffff, 0x00000000, 0x00ffffff },
	    { 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00000000 },
	    { 0x00ffffff, 0x00ffffff, 0x00ffffff, 0x00ffffff } };


/******************************************************************************/

static void video_invertchar (int xx, int yy)
{
	int firstx = xx * VIDEO_PIXEL_SIZE;
	int lastx = (xx + VIDEO_FONT_WIDTH) * VIDEO_PIXEL_SIZE;
	int firsty = yy * VIDEO_LINE_LEN;
	int lasty = (yy + VIDEO_FONT_HEIGHT) * VIDEO_LINE_LEN;
	int x, y;
	for (y = firsty; y < lasty; y += VIDEO_LINE_LEN) {
		for (x = firstx; x < lastx; x++) {
			u8 *dest = (u8 *)(video_fb_address) + x + y;
			*dest = ~*dest;
		}
	}
}

/******************************************************************************/

static void video_drawchars (int xx, int yy, unsigned char *s, int count)
{
	u8 *cdat, *dest, *dest0;
	int rows, offset, c;

	offset = yy * VIDEO_LINE_LEN + xx * VIDEO_PIXEL_SIZE;
	dest0 = video_fb_address + offset;

	switch (VIDEO_DATA_FORMAT) {
	case GDF__8BIT_INDEX:
	case GDF__8BIT_332RGB:
		while (count--) {
			c = *s;
			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
			     rows--;
			     dest += VIDEO_LINE_LEN) {
				u8 bits = *cdat++;

				((u32 *) dest)[0] = (video_font_draw_table8[bits >> 4] & eorx) ^ bgx;
				((u32 *) dest)[1] = (video_font_draw_table8[bits & 15] & eorx) ^ bgx;
			}
			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
			s++;
		}
		break;

	case GDF_15BIT_555RGB:
		while (count--) {
			c = *s;
			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
			     rows--;
			     dest += VIDEO_LINE_LEN) {
				u8 bits = *cdat++;

				((u32 *) dest)[0] = SHORTSWAP32 ((video_font_draw_table15 [bits >> 6] & eorx) ^ bgx);
				((u32 *) dest)[1] = SHORTSWAP32 ((video_font_draw_table15 [bits >> 4 & 3] & eorx) ^ bgx);
				((u32 *) dest)[2] = SHORTSWAP32 ((video_font_draw_table15 [bits >> 2 & 3] & eorx) ^ bgx);
				((u32 *) dest)[3] = SHORTSWAP32 ((video_font_draw_table15 [bits & 3] & eorx) ^ bgx);
			}
			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
			s++;
		}
		break;

	case GDF_16BIT_565RGB:
		while (count--) {
			c = *s;
			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
			     rows--;
			     dest += VIDEO_LINE_LEN) {
				u8 bits = *cdat++;

				((u32 *) dest)[0] = SHORTSWAP32 ((video_font_draw_table16 [bits >> 6] & eorx) ^ bgx);
				((u32 *) dest)[1] = SHORTSWAP32 ((video_font_draw_table16 [bits >> 4 & 3] & eorx) ^ bgx);
				((u32 *) dest)[2] = SHORTSWAP32 ((video_font_draw_table16 [bits >> 2 & 3] & eorx) ^ bgx);
				((u32 *) dest)[3] = SHORTSWAP32 ((video_font_draw_table16 [bits & 3] & eorx) ^ bgx);
			}
			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
			s++;
		}
		break;

	case GDF_32BIT_X888RGB:
		while (count--) {
			c = *s;
			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
			     rows--;
			     dest += VIDEO_LINE_LEN) {
				u8 bits = *cdat++;

				((u32 *) dest)[0] = SWAP32 ((video_font_draw_table32 [bits >> 4][0] & eorx) ^ bgx);
				((u32 *) dest)[1] = SWAP32 ((video_font_draw_table32 [bits >> 4][1] & eorx) ^ bgx);
				((u32 *) dest)[2] = SWAP32 ((video_font_draw_table32 [bits >> 4][2] & eorx) ^ bgx);
				((u32 *) dest)[3] = SWAP32 ((video_font_draw_table32 [bits >> 4][3] & eorx) ^ bgx);
				((u32 *) dest)[4] = SWAP32 ((video_font_draw_table32 [bits & 15][0] & eorx) ^ bgx);
				((u32 *) dest)[5] = SWAP32 ((video_font_draw_table32 [bits & 15][1] & eorx) ^ bgx);
				((u32 *) dest)[6] = SWAP32 ((video_font_draw_table32 [bits & 15][2] & eorx) ^ bgx);
				((u32 *) dest)[7] = SWAP32 ((video_font_draw_table32 [bits & 15][3] & eorx) ^ bgx);
			}
			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
			s++;
		}
		break;

	case GDF_24BIT_888RGB:
		while (count--) {
			c = *s;
			cdat = video_fontdata + c * VIDEO_FONT_HEIGHT;
			for (rows = VIDEO_FONT_HEIGHT, dest = dest0;
			     rows--;
			     dest += VIDEO_LINE_LEN) {
				u8 bits = *cdat++;

				((u32 *) dest)[0] = (video_font_draw_table24[bits >> 4][0] & eorx) ^ bgx;
				((u32 *) dest)[1] = (video_font_draw_table24[bits >> 4][1] & eorx) ^ bgx;
				((u32 *) dest)[2] = (video_font_draw_table24[bits >> 4][2] & eorx) ^ bgx;
				((u32 *) dest)[3] = (video_font_draw_table24[bits & 15][0] & eorx) ^ bgx;
				((u32 *) dest)[4] = (video_font_draw_table24[bits & 15][1] & eorx) ^ bgx;
				((u32 *) dest)[5] = (video_font_draw_table24[bits & 15][2] & eorx) ^ bgx;
			}
			dest0 += VIDEO_FONT_WIDTH * VIDEO_PIXEL_SIZE;
			s++;
		}
		break;
	}
}

/*****************************************************************************/

static inline void video_drawstring (int xx, int yy, unsigned char *s)
{
	video_drawchars (xx, yy, s, strlen ((char *)s));
}

/*****************************************************************************/

static void video_putchar (int xx, int yy, unsigned char c)
{
	video_drawchars (xx, yy + video_logo_height, &c, 1);
}

/*****************************************************************************/
#if defined(CONFIG_CONSOLE_CURSOR) || defined(CONFIG_VIDEO_SW_CURSOR)
static void video_set_cursor (void)
{
	if (cursor_state)
		console_cursor(0);
	console_cursor(1);
}

/******************************************************************************/

void console_cursor (int state)
{
#ifdef CONFIG_CONSOLE_TIME
	struct rtc_time tm;
	char info[16];

	/* time update only if cursor is on (faster scroll) */
	if (state) {
		rtc_get (&tm);

		sprintf (info, " %02d:%02d:%02d ", tm.tm_hour, tm.tm_min,
			 tm.tm_sec);
		video_drawstring (VIDEO_VISIBLE_COLS - 10 * VIDEO_FONT_WIDTH,
				  VIDEO_INFO_Y, (uchar *)info);

		sprintf (info, "%02d.%02d.%04d", tm.tm_mday, tm.tm_mon,
			 tm.tm_year);
		video_drawstring (VIDEO_VISIBLE_COLS - 10 * VIDEO_FONT_WIDTH,
				  VIDEO_INFO_Y + 1 * VIDEO_FONT_HEIGHT, (uchar *)info);
	}
#endif

	if (cursor_state != state) {
		if (cursor_state) {
			/* turn off the cursor */
			video_invertchar(old_col * VIDEO_FONT_WIDTH,
			                 old_row * VIDEO_FONT_HEIGHT);
		} else {
			/* turn off the cursor and record where it is */
			video_invertchar(console_col * VIDEO_FONT_WIDTH,
				         console_row * VIDEO_FONT_HEIGHT);
			old_col = console_col;
			old_row = console_row;
		}
		cursor_state = state;
	}
}
#endif

/*****************************************************************************/

#ifndef VIDEO_HW_RECTFILL
static void memsetl (int *p, int c, int v)
{
	while (c--)
		*(p++) = v;
}
#endif

/*****************************************************************************/

#ifndef VIDEO_HW_BITBLT
static void memcpyl (int *d, int *s, int c)
{
	while (c--)
		*(d++) = *(s++);
}
#endif

/*****************************************************************************/

static void console_scrollup (void)
{
	/* copy up rows ignoring the first one */

#ifdef VIDEO_HW_BITBLT
	video_hw_bitblt (VIDEO_PIXEL_SIZE,	/* bytes per pixel */
			 0,	/* source pos x */
			 video_logo_height + VIDEO_FONT_HEIGHT, /* source pos y */
			 0,	/* dest pos x */
			 video_logo_height,	/* dest pos y */
			 VIDEO_VISIBLE_COLS,	/* frame width */
			 VIDEO_VISIBLE_ROWS - video_logo_height - VIDEO_FONT_HEIGHT	/* frame height */
		);
#else
	memcpyl (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND,
		 CONSOLE_SCROLL_SIZE >> 2);
#endif

	/* clear the last one */
#ifdef VIDEO_HW_RECTFILL
	video_hw_rectfill (VIDEO_PIXEL_SIZE,	/* bytes per pixel */
			   0,	/* dest pos x */
			   VIDEO_VISIBLE_ROWS - VIDEO_FONT_HEIGHT,	/* dest pos y */
			   VIDEO_VISIBLE_COLS,	/* frame width */
			   VIDEO_FONT_HEIGHT,	/* frame height */
			   CONSOLE_BG_COL	/* fill color */
		);
#else
	memsetl (CONSOLE_ROW_LAST, CONSOLE_ROW_SIZE >> 2, CONSOLE_BG_COL);
#endif
}

/*****************************************************************************/

static void console_back (void)
{
	CURSOR_OFF;
	console_col--;

	if (console_col < 0) {
		console_col = CONSOLE_COLS - 1;
		console_row--;
		if (console_row < 0)
			console_row = 0;
	}
	CURSOR_SET;
}

/*****************************************************************************/

static void console_newline (void)
{
	console_row++;
	console_col = 0;

	/* Check if we need to scroll the terminal */
	if (console_row >= CONSOLE_ROWS) {
		/* Scroll everything up */
		console_scrollup ();

		/* Decrement row number */
		console_row--;
	}
}

static void console_cr (void)
{
	console_col = 0;
}

/*****************************************************************************/

void video_putc (const char c)
{
	static int nl = 1;

	CURSOR_OFF;

	switch (c) {
	case 13:		/* back to first column */
		console_cr ();
		break;

	case '\n':		/* next line */
		if (console_col || (!console_col && nl))
			console_newline ();
		nl = 1;
		break;

	case 9:		/* tab 8 */
		console_col |= 0x0008;
		console_col &= ~0x0007;

		if (console_col >= CONSOLE_COLS)
			console_newline ();
		break;

	case 8:		/* backspace */
		console_back ();
		break;

	default:		/* draw the char */
		video_putchar (console_col * VIDEO_FONT_WIDTH,
			       console_row * VIDEO_FONT_HEIGHT,
			       c);
		console_col++;

		/* check for newline */
		if (console_col >= CONSOLE_COLS) {
			console_newline ();
			nl = 0;
		}
	}
	CURSOR_SET;
}


/*****************************************************************************/

void video_puts (const char *s)
{
	int count = strlen (s);

	while (count--)
		video_putc (*s++);
}

/*****************************************************************************/

/*
 * Do not enforce drivers (or board code) to provide empty
 * video_set_lut() if they do not support 8 bpp format.
 * Implement weak default function instead.
 */
void __video_set_lut (unsigned int index, unsigned char r,
		      unsigned char g, unsigned char b)
{
}
void video_set_lut (unsigned int, unsigned char, unsigned char, unsigned char)
			__attribute__((weak, alias("__video_set_lut")));

#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)

#define FILL_8BIT_332RGB(r,g,b)	{			\
	*fb = ((r>>5)<<5) | ((g>>5)<<2) | (b>>6);	\
	fb ++;						\
}

#define FILL_15BIT_555RGB(r,g,b) {			\
	*(unsigned short *)fb = SWAP16((unsigned short)(((r>>3)<<10) | ((g>>3)<<5) | (b>>3))); \
	fb += 2;					\
}

#define FILL_16BIT_565RGB(r,g,b) {			\
	*(unsigned short *)fb = SWAP16((unsigned short)((((r)>>3)<<11) | (((g)>>2)<<5) | ((b)>>3))); \
	fb += 2;					\
}

#define FILL_32BIT_X888RGB(r,g,b) {			\
	*(unsigned long *)fb = SWAP32((unsigned long)(((r<<16) | (g<<8) | b))); \
	fb += 4;					\
}

#ifdef VIDEO_FB_LITTLE_ENDIAN
#define FILL_24BIT_888RGB(r,g,b) {			\
	fb[0] = b;					\
	fb[1] = g;					\
	fb[2] = r;					\
	fb += 3;					\
}
#else
#define FILL_24BIT_888RGB(r,g,b) {			\
	fb[0] = r;					\
	fb[1] = g;					\
	fb[2] = b;					\
	fb += 3;					\
}
#endif

#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
static void inline fill_555rgb_pswap(uchar *fb, int x,
				     u8 r, u8 g, u8 b)
{
	ushort *dst = (ushort *)fb;
	ushort color = (ushort)(((r >> 3) << 10) |
				((g >> 3) << 5) |
				(b >> 3));
	if (x & 1)
		*(--dst) = color;
	else
		*(++dst) = color;
}
#endif

/*
 * RLE8 bitmap support
 */

#ifdef CONFIG_VIDEO_BMP_RLE8
/* Pre-calculated color table entry */
struct palette {
	union {
		unsigned short	w;	/* word */
		unsigned int	dw;	/* double word */
	} ce; /* color entry */
};

/*
 * Helper to draw encoded/unencoded run.
 */
static void draw_bitmap (uchar **fb, uchar *bm, struct palette *p,
			 int cnt, int enc)
{
	ulong addr = (ulong)*fb;
	int *off;
	int enc_off = 1;
	int i;

	/*
	 * Setup offset of the color index in the bitmap.
	 * Color index of encoded run is at offset 1.
	 */
	off = enc ? &enc_off : &i;

	switch (VIDEO_DATA_FORMAT) {
	case GDF__8BIT_INDEX:
		for (i = 0; i < cnt; i++)
			*(unsigned char *)addr++ = bm[*off];
		break;
	case GDF_15BIT_555RGB:
	case GDF_16BIT_565RGB:
		/* differences handled while pre-calculating palette */
		for (i = 0; i < cnt; i++) {
			*(unsigned short *)addr = p[bm[*off]].ce.w;
			addr += 2;
		}
		break;
	case GDF_32BIT_X888RGB:
		for (i = 0; i < cnt; i++) {
			*(unsigned long *)addr = p[bm[*off]].ce.dw;
			addr += 4;
		}
		break;
	}
	*fb = (uchar *)addr; /* return modified address */
}

static int display_rle8_bitmap (bmp_image_t *img, int xoff, int yoff,
				int width, int height)
{
	unsigned char *bm;
	unsigned char *fbp;
	unsigned int cnt, runlen;
	int decode = 1;
	int x, y, bpp, i, ncolors;
	struct palette p[256];
	bmp_color_table_entry_t cte;
	int green_shift, red_off;
	int limit = VIDEO_COLS * VIDEO_ROWS;
	int pixels = 0;

	x = 0;
	y = __le32_to_cpu(img->header.height) - 1;
	ncolors = __le32_to_cpu(img->header.colors_used);
	bpp = VIDEO_PIXEL_SIZE;
	fbp = (unsigned char *)((unsigned int)video_fb_address +
				(((y + yoff) * VIDEO_COLS) + xoff) * bpp);

	bm = (uchar *)img + __le32_to_cpu(img->header.data_offset);

	/* pre-calculate and setup palette */
	switch (VIDEO_DATA_FORMAT) {
	case GDF__8BIT_INDEX:
		for (i = 0; i < ncolors; i++) {
			cte = img->color_table[i];
			video_set_lut (i, cte.red, cte.green, cte.blue);
		}
		break;
	case GDF_15BIT_555RGB:
	case GDF_16BIT_565RGB:
		if (VIDEO_DATA_FORMAT == GDF_15BIT_555RGB) {
			green_shift = 3;
			red_off = 10;
		} else {
			green_shift = 2;
			red_off = 11;
		}
		for (i = 0; i < ncolors; i++) {
			cte = img->color_table[i];
			p[i].ce.w = SWAP16((unsigned short)
					   (((cte.red >> 3) << red_off) |
					    ((cte.green >> green_shift) << 5) |
					    cte.blue >> 3));
		}
		break;
	case GDF_32BIT_X888RGB:
		for (i = 0; i < ncolors; i++) {
			cte = img->color_table[i];
			p[i].ce.dw = SWAP32((cte.red << 16) | (cte.green << 8) |
					     cte.blue);
		}
		break;
	default:
		printf("RLE Bitmap unsupported in video mode 0x%x\n",
			VIDEO_DATA_FORMAT);
		return -1;
	}

	while (decode) {
		switch (bm[0]) {
		case 0:
			switch (bm[1]) {
			case 0:
				/* scan line end marker */
				bm += 2;
				x = 0;
				y--;
				fbp = (unsigned char *)
					((unsigned int)video_fb_address +
					 (((y + yoff) * VIDEO_COLS) +
					  xoff) * bpp);
				continue;
			case 1:
				/* end of bitmap data marker */
				decode = 0;
				break;
			case 2:
				/* run offset marker */
				x += bm[2];
				y -= bm[3];
				fbp = (unsigned char *)
					((unsigned int)video_fb_address +
					 (((y + yoff) * VIDEO_COLS) +
					  x + xoff) * bpp);
				bm += 4;
				break;
			default:
				/* unencoded run */
				cnt = bm[1];
				runlen = cnt;
				pixels += cnt;
				if (pixels > limit)
					goto error;

				bm += 2;
				if (y < height) {
					if (x >= width) {
						x += runlen;
						goto next_run;
					}
					if (x + runlen > width)
						cnt = width - x;
					draw_bitmap (&fbp, bm, p, cnt, 0);
					x += runlen;
				}
next_run:
				bm += runlen;
				if (runlen & 1)
					bm++; /* 0 padding if length is odd */
			}
			break;
		default:
			/* encoded run */
			cnt = bm[0];
			runlen = cnt;
			pixels += cnt;
			if (pixels > limit)
				goto error;

			if (y < height) { /* only draw into visible area */
				if (x >= width) {
					x += runlen;
					bm += 2;
					continue;
				}
				if (x + runlen > width)
					cnt = width - x;
				draw_bitmap (&fbp, bm, p, cnt, 1);
				x += runlen;
			}
			bm += 2;
			break;
		}
	}
	return 0;
error:
	printf("Error: Too much encoded pixel data, validate your bitmap\n");
	return -1;
}
#endif

/*
 * Display the BMP file located at address bmp_image.
 */
int video_display_bitmap (ulong bmp_image, int x, int y)
{
	ushort xcount, ycount;
	uchar *fb;
	bmp_image_t *bmp = (bmp_image_t *) bmp_image;
	uchar *bmap;
	ushort padded_line;
	unsigned long width, height, bpp;
	unsigned colors;
	unsigned long compression;
	bmp_color_table_entry_t cte;
#ifdef CONFIG_VIDEO_BMP_GZIP
	unsigned char *dst = NULL;
	ulong len;
#endif

	WATCHDOG_RESET ();

	if (!((bmp->header.signature[0] == 'B') &&
	      (bmp->header.signature[1] == 'M'))) {

#ifdef CONFIG_VIDEO_BMP_GZIP
		/*
		 * Could be a gzipped bmp image, try to decrompress...
		 */
		len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE;
		dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE);
		if (dst == NULL) {
			printf("Error: malloc in gunzip failed!\n");
			return(1);
		}
		if (gunzip(dst, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE, (uchar *)bmp_image, &len) != 0) {
			printf ("Error: no valid bmp or bmp.gz image at %lx\n", bmp_image);
			free(dst);
			return 1;
		}
		if (len == CONFIG_SYS_VIDEO_LOGO_MAX_SIZE) {
			printf("Image could be truncated (increase CONFIG_SYS_VIDEO_LOGO_MAX_SIZE)!\n");
		}

		/*
		 * Set addr to decompressed image
		 */
		bmp = (bmp_image_t *)dst;

		if (!((bmp->header.signature[0] == 'B') &&
		      (bmp->header.signature[1] == 'M'))) {
			printf ("Error: no valid bmp.gz image at %lx\n", bmp_image);
			free(dst);
			return 1;
		}
#else
		printf ("Error: no valid bmp image at %lx\n", bmp_image);
		return 1;
#endif /* CONFIG_VIDEO_BMP_GZIP */
	}

	width = le32_to_cpu (bmp->header.width);
	height = le32_to_cpu (bmp->header.height);
	bpp = le16_to_cpu (bmp->header.bit_count);
	colors = le32_to_cpu (bmp->header.colors_used);
	compression = le32_to_cpu (bmp->header.compression);

	debug ("Display-bmp: %d x %d  with %d colors\n",
	       width, height, colors);

	if (compression != BMP_BI_RGB
#ifdef CONFIG_VIDEO_BMP_RLE8
	    && compression != BMP_BI_RLE8
#endif
	   ) {
		printf ("Error: compression type %ld not supported\n",
			compression);
#ifdef CONFIG_VIDEO_BMP_GZIP
		if (dst)
			free(dst);
#endif
		return 1;
	}

	padded_line = (((width * bpp + 7) / 8) + 3) & ~0x3;

#ifdef CONFIG_SPLASH_SCREEN_ALIGN
	if (x == BMP_ALIGN_CENTER)
		x = max(0, (VIDEO_VISIBLE_COLS - width) / 2);
	else if (x < 0)
		x = max(0, VIDEO_VISIBLE_COLS - width + x + 1);

	if (y == BMP_ALIGN_CENTER)
		y = max(0, (VIDEO_VISIBLE_ROWS - height) / 2);
	else if (y < 0)
		y = max(0, VIDEO_VISIBLE_ROWS - height + y + 1);
#endif /* CONFIG_SPLASH_SCREEN_ALIGN */

	if ((x + width) > VIDEO_VISIBLE_COLS)
		width = VIDEO_VISIBLE_COLS - x;
	if ((y + height) > VIDEO_VISIBLE_ROWS)
		height = VIDEO_VISIBLE_ROWS - y;

	bmap = (uchar *) bmp + le32_to_cpu (bmp->header.data_offset);
	fb = (uchar *) (video_fb_address +
			((y + height - 1) * VIDEO_COLS * VIDEO_PIXEL_SIZE) +
			x * VIDEO_PIXEL_SIZE);

#ifdef CONFIG_VIDEO_BMP_RLE8
	if (compression == BMP_BI_RLE8) {
		return display_rle8_bitmap(bmp,
					   x, y, width, height);
	}
#endif

	/* We handle only 4, 8, or 24 bpp bitmaps */
	switch (le16_to_cpu (bmp->header.bit_count)) {
	case 4:
		padded_line -= width / 2;
		ycount = height;

		switch (VIDEO_DATA_FORMAT) {
		case GDF_32BIT_X888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				/*
				 * Don't assume that 'width' is an
				 * even number
				 */
				for (xcount = 0; xcount < width; xcount++) {
					uchar idx;

					if (xcount & 1) {
						idx = *bmap & 0xF;
						bmap++;
					} else
						idx = *bmap >> 4;
					cte = bmp->color_table[idx];
					FILL_32BIT_X888RGB(cte.red, cte.green,
							   cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) *
				      VIDEO_PIXEL_SIZE;
			}
			break;
		default:
			puts("4bpp bitmap unsupported with current "
			     "video mode\n");
			break;
		}
		break;

	case 8:
		padded_line -= width;
		if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX) {
			/* Copy colormap */
			for (xcount = 0; xcount < colors; ++xcount) {
				cte = bmp->color_table[xcount];
				video_set_lut (xcount, cte.red, cte.green, cte.blue);
			}
		}
		ycount = height;
		switch (VIDEO_DATA_FORMAT) {
		case GDF__8BIT_INDEX:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					*fb++ = *bmap++;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF__8BIT_332RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_8BIT_332RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_15BIT_555RGB:
			while (ycount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
				int xpos = x;
#endif
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
					fill_555rgb_pswap (fb, xpos++, cte.red,
							   cte.green, cte.blue);
					fb += 2;
#else
					FILL_15BIT_555RGB (cte.red, cte.green, cte.blue);
#endif
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_16BIT_565RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_16BIT_565RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_32BIT_X888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_32BIT_X888RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_24BIT_888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					cte = bmp->color_table[*bmap++];
					FILL_24BIT_888RGB (cte.red, cte.green, cte.blue);
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		}
		break;
	case 24:
		padded_line -= 3 * width;
		ycount = height;
		switch (VIDEO_DATA_FORMAT) {
		case GDF__8BIT_332RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_8BIT_332RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_15BIT_555RGB:
			while (ycount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
				int xpos = x;
#endif
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
					fill_555rgb_pswap (fb, xpos++, bmap[2],
							   bmap[1], bmap[0]);
					fb += 2;
#else
					FILL_15BIT_555RGB (bmap[2], bmap[1], bmap[0]);
#endif
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_16BIT_565RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_16BIT_565RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_32BIT_X888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_32BIT_X888RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		case GDF_24BIT_888RGB:
			while (ycount--) {
				WATCHDOG_RESET ();
				xcount = width;
				while (xcount--) {
					FILL_24BIT_888RGB (bmap[2], bmap[1], bmap[0]);
					bmap += 3;
				}
				bmap += padded_line;
				fb -= (VIDEO_VISIBLE_COLS + width) * VIDEO_PIXEL_SIZE;
			}
			break;
		default:
			printf ("Error: 24 bits/pixel bitmap incompatible with current video mode\n");
			break;
		}
		break;
	default:
		printf ("Error: %d bit/pixel bitmaps not supported by U-Boot\n",
			le16_to_cpu (bmp->header.bit_count));
		break;
	}

#ifdef CONFIG_VIDEO_BMP_GZIP
	if (dst) {
		free(dst);
	}
#endif

	return (0);
}
#endif

/*****************************************************************************/

#ifdef CONFIG_VIDEO_LOGO
void logo_plot (void *screen, int width, int x, int y)
{

	int xcount, i;
	int skip   = (width - VIDEO_LOGO_WIDTH) * VIDEO_PIXEL_SIZE;
	int ycount = video_logo_height;
	unsigned char r, g, b, *logo_red, *logo_blue, *logo_green;
	unsigned char *source;
	unsigned char *dest = (unsigned char *)screen +
			      ((y * width * VIDEO_PIXEL_SIZE) +
			       x * VIDEO_PIXEL_SIZE);

#ifdef CONFIG_VIDEO_BMP_LOGO
	source = bmp_logo_bitmap;

	/* Allocate temporary space for computing colormap */
	logo_red = malloc (BMP_LOGO_COLORS);
	logo_green = malloc (BMP_LOGO_COLORS);
	logo_blue = malloc (BMP_LOGO_COLORS);
	/* Compute color map */
	for (i = 0; i < VIDEO_LOGO_COLORS; i++) {
		logo_red[i] = (bmp_logo_palette[i] & 0x0f00) >> 4;
		logo_green[i] = (bmp_logo_palette[i] & 0x00f0);
		logo_blue[i] = (bmp_logo_palette[i] & 0x000f) << 4;
	}
#else
	source = linux_logo;
	logo_red = linux_logo_red;
	logo_green = linux_logo_green;
	logo_blue = linux_logo_blue;
#endif

	if (VIDEO_DATA_FORMAT == GDF__8BIT_INDEX) {
		for (i = 0; i < VIDEO_LOGO_COLORS; i++) {
			video_set_lut (i + VIDEO_LOGO_LUT_OFFSET,
				       logo_red[i], logo_green[i], logo_blue[i]);
		}
	}

	while (ycount--) {
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
		int xpos = x;
#endif
		xcount = VIDEO_LOGO_WIDTH;
		while (xcount--) {
			r = logo_red[*source - VIDEO_LOGO_LUT_OFFSET];
			g = logo_green[*source - VIDEO_LOGO_LUT_OFFSET];
			b = logo_blue[*source - VIDEO_LOGO_LUT_OFFSET];

			switch (VIDEO_DATA_FORMAT) {
			case GDF__8BIT_INDEX:
				*dest = *source;
				break;
			case GDF__8BIT_332RGB:
				*dest = ((r >> 5) << 5) | ((g >> 5) << 2) | (b >> 6);
				break;
			case GDF_15BIT_555RGB:
#if defined(VIDEO_FB_16BPP_PIXEL_SWAP)
				fill_555rgb_pswap (dest, xpos++, r, g, b);
#else
				*(unsigned short *) dest =
					SWAP16 ((unsigned short) (((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3)));
#endif
				break;
			case GDF_16BIT_565RGB:
				*(unsigned short *) dest =
					SWAP16 ((unsigned short) (((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3)));
				break;
			case GDF_32BIT_X888RGB:
				*(unsigned long *) dest =
					SWAP32 ((unsigned long) ((r << 16) | (g << 8) | b));
				break;
			case GDF_24BIT_888RGB:
#ifdef VIDEO_FB_LITTLE_ENDIAN
				dest[0] = b;
				dest[1] = g;
				dest[2] = r;
#else
				dest[0] = r;
				dest[1] = g;
				dest[2] = b;
#endif
				break;
			}
			source++;
			dest += VIDEO_PIXEL_SIZE;
		}
		dest += skip;
	}
#ifdef CONFIG_VIDEO_BMP_LOGO
	free (logo_red);
	free (logo_green);
	free (logo_blue);
#endif
}

/*****************************************************************************/

static void *video_logo (void)
{
	char info[128];
	extern char version_string;
	int space, len, y_off = 0;

#ifdef CONFIG_SPLASH_SCREEN
	char *s;
	ulong addr;

	if ((s = getenv ("splashimage")) != NULL) {
		int x = 0, y = 0;

		addr = simple_strtoul (s, NULL, 16);
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
		if ((s = getenv ("splashpos")) != NULL) {
			if (s[0] == 'm')
				x = BMP_ALIGN_CENTER;
			else
				x = simple_strtol (s, NULL, 0);

			if ((s = strchr (s + 1, ',')) != NULL) {
				if (s[1] == 'm')
					y = BMP_ALIGN_CENTER;
				else
					y = simple_strtol (s + 1, NULL, 0);
			}
		}
#endif /* CONFIG_SPLASH_SCREEN_ALIGN */

		if (video_display_bitmap (addr, x, y) == 0) {
			video_logo_height = 0;
			return ((void *) (video_fb_address));
		}
	}
#endif /* CONFIG_SPLASH_SCREEN */

	logo_plot (video_fb_address, VIDEO_COLS, 0, 0);

	sprintf (info, " %s", &version_string);

	space = (VIDEO_LINE_LEN / 2 - VIDEO_INFO_X) / VIDEO_FONT_WIDTH;
	len = strlen(info);

	if (len > space) {
		video_drawchars (VIDEO_INFO_X, VIDEO_INFO_Y,
				 (uchar *)info, space);
		video_drawchars (VIDEO_INFO_X + VIDEO_FONT_WIDTH,
				 VIDEO_INFO_Y + VIDEO_FONT_HEIGHT,
				 (uchar *)info + space, len - space);
		y_off = 1;
	} else
		video_drawstring (VIDEO_INFO_X, VIDEO_INFO_Y, (uchar *)info);

#ifdef CONFIG_CONSOLE_EXTRA_INFO
	{
		int i, n = ((video_logo_height - VIDEO_FONT_HEIGHT) / VIDEO_FONT_HEIGHT);

		for (i = 1; i < n; i++) {
			video_get_info_str (i, info);
			if (!*info)
				continue;

			len = strlen(info);
			if (len > space) {
				video_drawchars (VIDEO_INFO_X,
						 VIDEO_INFO_Y +
						 (i + y_off) * VIDEO_FONT_HEIGHT,
						 (uchar *)info, space);
				y_off++;
				video_drawchars (VIDEO_INFO_X + VIDEO_FONT_WIDTH,
						 VIDEO_INFO_Y +
						 (i + y_off) * VIDEO_FONT_HEIGHT,
						 (uchar *)info + space,
						 len - space);
			} else {
				video_drawstring (VIDEO_INFO_X,
						  VIDEO_INFO_Y +
						  (i + y_off) * VIDEO_FONT_HEIGHT,
						  (uchar *)info);
			}
		}
	}
#endif

	return (video_fb_address + video_logo_height * VIDEO_LINE_LEN);
}
#endif


/*****************************************************************************/

static int video_init (void)
{
	unsigned char color8;

	if ((pGD = video_hw_init ()) == NULL)
		return -1;

	video_fb_address = (void *) VIDEO_FB_ADRS;
#ifdef CONFIG_VIDEO_HW_CURSOR
	video_init_hw_cursor (VIDEO_FONT_WIDTH, VIDEO_FONT_HEIGHT);
#endif

	/* Init drawing pats */
	switch (VIDEO_DATA_FORMAT) {
	case GDF__8BIT_INDEX:
		video_set_lut (0x01, CONSOLE_FG_COL, CONSOLE_FG_COL, CONSOLE_FG_COL);
		video_set_lut (0x00, CONSOLE_BG_COL, CONSOLE_BG_COL, CONSOLE_BG_COL);
		fgx = 0x01010101;
		bgx = 0x00000000;
		break;
	case GDF__8BIT_332RGB:
		color8 = ((CONSOLE_FG_COL & 0xe0) |
			  ((CONSOLE_FG_COL >> 3) & 0x1c) | CONSOLE_FG_COL >> 6);
		fgx = (color8 << 24) | (color8 << 16) | (color8 << 8) | color8;
		color8 = ((CONSOLE_BG_COL & 0xe0) |
			  ((CONSOLE_BG_COL >> 3) & 0x1c) | CONSOLE_BG_COL >> 6);
		bgx = (color8 << 24) | (color8 << 16) | (color8 << 8) | color8;
		break;
	case GDF_15BIT_555RGB:
		fgx = (((CONSOLE_FG_COL >> 3) << 26) |
		       ((CONSOLE_FG_COL >> 3) << 21) | ((CONSOLE_FG_COL >> 3) << 16) |
		       ((CONSOLE_FG_COL >> 3) << 10) | ((CONSOLE_FG_COL >> 3) << 5) |
		       (CONSOLE_FG_COL >> 3));
		bgx = (((CONSOLE_BG_COL >> 3) << 26) |
		       ((CONSOLE_BG_COL >> 3) << 21) | ((CONSOLE_BG_COL >> 3) << 16) |
		       ((CONSOLE_BG_COL >> 3) << 10) | ((CONSOLE_BG_COL >> 3) << 5) |
		       (CONSOLE_BG_COL >> 3));
		break;
	case GDF_16BIT_565RGB:
		fgx = (((CONSOLE_FG_COL >> 3) << 27) |
		       ((CONSOLE_FG_COL >> 2) << 21) | ((CONSOLE_FG_COL >> 3) << 16) |
		       ((CONSOLE_FG_COL >> 3) << 11) | ((CONSOLE_FG_COL >> 2) << 5) |
		       (CONSOLE_FG_COL >> 3));
		bgx = (((CONSOLE_BG_COL >> 3) << 27) |
		       ((CONSOLE_BG_COL >> 2) << 21) | ((CONSOLE_BG_COL >> 3) << 16) |
		       ((CONSOLE_BG_COL >> 3) << 11) | ((CONSOLE_BG_COL >> 2) << 5) |
		       (CONSOLE_BG_COL >> 3));
		break;
	case GDF_32BIT_X888RGB:
		fgx = (CONSOLE_FG_COL << 16) | (CONSOLE_FG_COL << 8) | CONSOLE_FG_COL;
		bgx = (CONSOLE_BG_COL << 16) | (CONSOLE_BG_COL << 8) | CONSOLE_BG_COL;
		break;
	case GDF_24BIT_888RGB:
		fgx = (CONSOLE_FG_COL << 24) | (CONSOLE_FG_COL << 16) |
			(CONSOLE_FG_COL << 8) | CONSOLE_FG_COL;
		bgx = (CONSOLE_BG_COL << 24) | (CONSOLE_BG_COL << 16) |
			(CONSOLE_BG_COL << 8) | CONSOLE_BG_COL;
		break;
	}
	eorx = fgx ^ bgx;

#ifdef CONFIG_VIDEO_LOGO
	/* Plot the logo and get start point of console */
	PRINTD ("Video: Drawing the logo ...\n");
	video_console_address = video_logo ();
#else
	video_console_address = video_fb_address;
#endif

	/* Initialize the console */
	console_col = 0;
	console_row = 0;

	return 0;
}


/*****************************************************************************/

/*
 * Implement a weak default function for boards that optionally
 * need to skip the video initialization.
 */
int __board_video_skip(void)
{
	/* As default, don't skip test */
	return 0;
}
int board_video_skip(void) __attribute__((weak, alias("__board_video_skip")));

int drv_video_init (void)
{
	int skip_dev_init;
	struct stdio_dev console_dev;

	/* Check if video initialization should be skipped */
	if (board_video_skip())
		return 0;

	/* Init video chip - returns with framebuffer cleared */
	skip_dev_init = (video_init () == -1);

#if !defined(CONFIG_VGA_AS_SINGLE_DEVICE)
	PRINTD ("KBD: Keyboard init ...\n");
	skip_dev_init |= (VIDEO_KBD_INIT_FCT == -1);
#endif

	if (skip_dev_init)
		return 0;

	/* Init vga device */
	memset (&console_dev, 0, sizeof (console_dev));
	strcpy (console_dev.name, "vga");
	console_dev.ext = DEV_EXT_VIDEO;	/* Video extensions */
	console_dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_SYSTEM;
	console_dev.putc = video_putc;	/* 'putc' function */
	console_dev.puts = video_puts;	/* 'puts' function */
	console_dev.tstc = NULL;	/* 'tstc' function */
	console_dev.getc = NULL;	/* 'getc' function */

#if !defined(CONFIG_VGA_AS_SINGLE_DEVICE)
	/* Also init console device */
	console_dev.flags |= DEV_FLAGS_INPUT;
	console_dev.tstc = VIDEO_TSTC_FCT;	/* 'tstc' function */
	console_dev.getc = VIDEO_GETC_FCT;	/* 'getc' function */
#endif /* CONFIG_VGA_AS_SINGLE_DEVICE */

	if (stdio_register (&console_dev) != 0)
		return 0;

	/* Return success */
	return 1;
}

/****************** functions required by vboot wrapper *******************/

void video_position_cursor (unsigned col, unsigned row)
{
	console_col = min(col, CONSOLE_COLS - 1);
	console_row = min(row, CONSOLE_ROWS - 1);
}

int video_get_pixel_width(void)
{
	return VIDEO_VISIBLE_COLS;
}

int video_get_pixel_height(void)
{
	return VIDEO_VISIBLE_ROWS;
}

int video_get_screen_rows (void)
{
	return CONSOLE_ROWS;
}

int video_get_screen_columns (void)
{
	return CONSOLE_COLS;
}

int video_clear(void)
{
	memsetl(video_fb_address,
		(VIDEO_VISIBLE_ROWS * VIDEO_LINE_LEN) / sizeof(int), 0);

	return 0;
}