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u-boot/common/lcd.c

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/*
* Common LCD routines for supported CPUs
*
* (C) Copyright 2001-2002
* Wolfgang Denk, DENX Software Engineering -- wd@denx.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
*/
/************************************************************************/
/* ** HEADER FILES */
/************************************************************************/
/* #define DEBUG */
#include <config.h>
#include <common.h>
#include <command.h>
#include <stdarg.h>
#include <linux/types.h>
#include <stdio_dev.h>
#if defined(CONFIG_POST)
#include <post.h>
#endif
#include <lcd.h>
#include <watchdog.h>
#if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
defined(CONFIG_CPU_MONAHANS)
#define CONFIG_CPU_PXA
#include <asm/byteorder.h>
#endif
#if defined(CONFIG_MPC823)
#include <lcdvideo.h>
#endif
#if defined(CONFIG_ATMEL_LCD)
#include <atmel_lcdc.h>
#endif
/************************************************************************/
/* ** FONT DATA */
/************************************************************************/
#include <video_font.h> /* Get font data, width and height */
#include <video_font_data.h>
/************************************************************************/
/* ** LOGO DATA */
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
# include <bmp_logo.h> /* Get logo data, width and height */
# include <bmp_logo_data.h>
# if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
# error Default Color Map overlaps with Logo Color Map
# endif
#endif
DECLARE_GLOBAL_DATA_PTR;
ulong lcd_setmem (ulong addr);
static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
static inline void lcd_putc_xy (ushort x, ushort y, uchar c);
static int lcd_init (void *lcdbase);
static void *lcd_logo (void);
static int lcd_getbgcolor (void);
static void lcd_setfgcolor (int color);
static void lcd_setbgcolor (int color);
char lcd_is_enabled = 0;
#ifdef NOT_USED_SO_FAR
static void lcd_getcolreg (ushort regno,
ushort *red, ushort *green, ushort *blue);
static int lcd_getfgcolor (void);
#endif /* NOT_USED_SO_FAR */
/************************************************************************/
/*----------------------------------------------------------------------*/
static void console_scrollup (void)
{
/* Copy up rows ignoring the first one */
memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
/* Clear the last one */
memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
}
/*----------------------------------------------------------------------*/
static inline void console_back (void)
{
if (--console_col < 0) {
console_col = CONSOLE_COLS-1 ;
if (--console_row < 0) {
console_row = 0;
}
}
lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
console_row * VIDEO_FONT_HEIGHT,
' ');
}
/*----------------------------------------------------------------------*/
static inline 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 () ;
--console_row;
}
}
/*----------------------------------------------------------------------*/
void lcd_putc (const char c)
{
if (!lcd_is_enabled) {
serial_putc(c);
return;
}
switch (c) {
case '\r': console_col = 0;
return;
case '\n': console_newline();
return;
case '\t': /* Tab (8 chars alignment) */
console_col += 8;
console_col &= ~7;
if (console_col >= CONSOLE_COLS) {
console_newline();
}
return;
case '\b': console_back();
return;
default: lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
console_row * VIDEO_FONT_HEIGHT,
c);
if (++console_col >= CONSOLE_COLS) {
console_newline();
}
return;
}
/* NOTREACHED */
}
/*----------------------------------------------------------------------*/
void lcd_puts (const char *s)
{
if (!lcd_is_enabled) {
serial_puts (s);
return;
}
while (*s) {
lcd_putc (*s++);
}
}
/*----------------------------------------------------------------------*/
void lcd_printf(const char *fmt, ...)
{
va_list args;
char buf[CONFIG_SYS_PBSIZE];
va_start(args, fmt);
vsprintf(buf, fmt, args);
va_end(args);
lcd_puts(buf);
}
/************************************************************************/
/* ** Low-Level Graphics Routines */
/************************************************************************/
static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
{
uchar *dest;
ushort row;
#if LCD_BPP == LCD_MONOCHROME
ushort off = x * (1 << LCD_BPP) % 8;
#endif
dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
for (row=0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
uchar *s = str;
int i;
#if LCD_BPP == LCD_COLOR16
ushort *d = (ushort *)dest;
#else
uchar *d = dest;
#endif
#if LCD_BPP == LCD_MONOCHROME
uchar rest = *d & -(1 << (8-off));
uchar sym;
#endif
for (i=0; i<count; ++i) {
uchar c, bits;
c = *s++;
bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
#if LCD_BPP == LCD_MONOCHROME
sym = (COLOR_MASK(lcd_color_fg) & bits) |
(COLOR_MASK(lcd_color_bg) & ~bits);
*d++ = rest | (sym >> off);
rest = sym << (8-off);
#elif LCD_BPP == LCD_COLOR8
for (c=0; c<8; ++c) {
*d++ = (bits & 0x80) ?
lcd_color_fg : lcd_color_bg;
bits <<= 1;
}
#elif LCD_BPP == LCD_COLOR16
for (c=0; c<8; ++c) {
*d++ = (bits & 0x80) ?
lcd_color_fg : lcd_color_bg;
bits <<= 1;
}
#endif
}
#if LCD_BPP == LCD_MONOCHROME
*d = rest | (*d & ((1 << (8-off)) - 1));
#endif
}
}
/*----------------------------------------------------------------------*/
static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
{
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
#else
lcd_drawchars (x, y, s, strlen ((char *)s));
#endif
}
/*----------------------------------------------------------------------*/
static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
{
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
#else
lcd_drawchars (x, y, &c, 1);
#endif
}
/************************************************************************/
/** Small utility to check that you got the colours right */
/************************************************************************/
#ifdef LCD_TEST_PATTERN
#define N_BLK_VERT 2
#define N_BLK_HOR 3
static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
};
static void test_pattern (void)
{
ushort v_max = panel_info.vl_row;
ushort h_max = panel_info.vl_col;
ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
ushort v, h;
uchar *pix = (uchar *)lcd_base;
printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
h_max, v_max, h_step, v_step);
/* WARNING: Code silently assumes 8bit/pixel */
for (v=0; v<v_max; ++v) {
uchar iy = v / v_step;
for (h=0; h<h_max; ++h) {
uchar ix = N_BLK_HOR * iy + (h/h_step);
*pix++ = test_colors[ix];
}
}
}
#endif /* LCD_TEST_PATTERN */
/************************************************************************/
/* ** GENERIC Initialization Routines */
/************************************************************************/
int drv_lcd_init (void)
{
struct stdio_dev lcddev;
int rc;
lcd_base = (void *)(gd->fb_base);
lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
lcd_init (lcd_base); /* LCD initialization */
/* Device initialization */
memset (&lcddev, 0, sizeof (lcddev));
strcpy (lcddev.name, "lcd");
lcddev.ext = 0; /* No extensions */
lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
lcddev.putc = lcd_putc; /* 'putc' function */
lcddev.puts = lcd_puts; /* 'puts' function */
rc = stdio_register (&lcddev);
return (rc == 0) ? 1 : rc;
}
/*----------------------------------------------------------------------*/
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 */
lcd_initcolregs();
#elif LCD_BPP == LCD_COLOR8
/* Setting the palette */
lcd_setcolreg (CONSOLE_COLOR_BLACK, 0, 0, 0);
lcd_setcolreg (CONSOLE_COLOR_RED, 0xFF, 0, 0);
lcd_setcolreg (CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
lcd_setcolreg (CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
lcd_setcolreg (CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
lcd_setcolreg (CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
lcd_setcolreg (CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
lcd_setcolreg (CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
lcd_setcolreg (CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
#endif
#ifndef CONFIG_SYS_WHITE_ON_BLACK
lcd_setfgcolor (CONSOLE_COLOR_BLACK);
lcd_setbgcolor (CONSOLE_COLOR_WHITE);
#else
lcd_setfgcolor (CONSOLE_COLOR_WHITE);
lcd_setbgcolor (CONSOLE_COLOR_BLACK);
#endif /* CONFIG_SYS_WHITE_ON_BLACK */
#ifdef LCD_TEST_PATTERN
test_pattern();
#else
/* set framebuffer to background color */
memset ((char *)lcd_base,
COLOR_MASK(lcd_getbgcolor()),
lcd_line_length*panel_info.vl_row);
#endif
/* Paint the logo and retrieve LCD base address */
debug ("[LCD] Drawing the logo...\n");
lcd_console_address = lcd_logo ();
console_col = 0;
console_row = 0;
}
U_BOOT_CMD(
cls, 1, 1, do_lcd_clear,
"clear screen",
""
);
/*----------------------------------------------------------------------*/
static int lcd_init (void *lcdbase)
{
/* Initialize the lcd controller */
debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
lcd_ctrl_init (lcdbase);
lcd_is_enabled = 1;
lcd_clear();
lcd_enable ();
/* Initialize the console */
console_col = 0;
#ifdef CONFIG_LCD_INFO_BELOW_LOGO
console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
#else
console_row = 1; /* leave 1 blank line below logo */
#endif
return 0;
}
/************************************************************************/
/* ** ROM capable initialization part - needed to reserve FB memory */
/************************************************************************/
/*
* This is called early in the system initialization to grab memory
* for the LCD controller.
* Returns new address for monitor, after reserving LCD buffer memory
*
* Note that this is running from ROM, so no write access to global data.
*/
ulong lcd_setmem (ulong addr)
{
ulong size;
int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
debug ("LCD panel info: %d x %d, %d bit/pix\n",
panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
size = line_length * panel_info.vl_row;
/* Round up to nearest full page */
size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
/* Allocate pages for the frame buffer. */
addr -= size;
debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
return (addr);
}
/*----------------------------------------------------------------------*/
static void lcd_setfgcolor (int color)
{
lcd_color_fg = color;
}
/*----------------------------------------------------------------------*/
static void lcd_setbgcolor (int color)
{
lcd_color_bg = color;
}
/*----------------------------------------------------------------------*/
#ifdef NOT_USED_SO_FAR
static int lcd_getfgcolor (void)
{
return lcd_color_fg;
}
#endif /* NOT_USED_SO_FAR */
/*----------------------------------------------------------------------*/
static int lcd_getbgcolor (void)
{
return lcd_color_bg;
}
/*----------------------------------------------------------------------*/
/************************************************************************/
/* ** Chipset depending Bitmap / Logo stuff... */
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
void bitmap_plot (int x, int y)
{
#ifdef CONFIG_ATMEL_LCD
uint *cmap;
#else
ushort *cmap;
#endif
ushort i, j;
uchar *bmap;
uchar *fb;
ushort *fb16;
#if defined(CONFIG_CPU_PXA)
struct pxafb_info *fbi = &panel_info.pxa;
#elif defined(CONFIG_MPC823)
volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
volatile cpm8xx_t *cp = &(immr->im_cpm);
#endif
debug ("Logo: width %d height %d colors %d cmap %d\n",
BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
(int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
bmap = &bmp_logo_bitmap[0];
fb = (uchar *)(lcd_base + y * lcd_line_length + x);
if (NBITS(panel_info.vl_bpix) < 12) {
/* Leave room for default color map */
#if defined(CONFIG_CPU_PXA)
cmap = (ushort *)fbi->palette;
#elif defined(CONFIG_MPC823)
cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
#elif defined(CONFIG_ATMEL_LCD)
cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
#else
/*
* default case: generic system with no cmap (most likely 16bpp)
* We set cmap to the source palette, so no change is done.
* This avoids even more ifdef in the next stanza
*/
cmap = bmp_logo_palette;
#endif
WATCHDOG_RESET();
/* Set color map */
for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
ushort colreg = bmp_logo_palette[i];
#ifdef CONFIG_ATMEL_LCD
uint lut_entry;
#ifdef CONFIG_ATMEL_LCD_BGR555
lut_entry = ((colreg & 0x000F) << 11) |
((colreg & 0x00F0) << 2) |
((colreg & 0x0F00) >> 7);
#else /* CONFIG_ATMEL_LCD_RGB565 */
lut_entry = ((colreg & 0x000F) << 1) |
((colreg & 0x00F0) << 3) |
((colreg & 0x0F00) << 4);
#endif
*(cmap + BMP_LOGO_OFFSET) = lut_entry;
cmap++;
#else /* !CONFIG_ATMEL_LCD */
#ifdef CONFIG_SYS_INVERT_COLORS
*cmap++ = 0xffff - colreg;
#else
*cmap++ = colreg;
#endif
#endif /* CONFIG_ATMEL_LCD */
}
WATCHDOG_RESET();
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
memcpy (fb, bmap, BMP_LOGO_WIDTH);
bmap += BMP_LOGO_WIDTH;
fb += panel_info.vl_col;
}
}
else { /* true color mode */
u16 col16;
fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
for (j=0; j<BMP_LOGO_WIDTH; j++) {
col16 = bmp_logo_palette[(bmap[j]-16)];
fb16[j] =
((col16 & 0x000F) << 1) |
((col16 & 0x00F0) << 3) |
((col16 & 0x0F00) << 4);
}
bmap += BMP_LOGO_WIDTH;
fb16 += panel_info.vl_col;
}
}
WATCHDOG_RESET();
}
#endif /* CONFIG_LCD_LOGO */
/*----------------------------------------------------------------------*/
#if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
/*
* Display the BMP file located at address bmp_image.
* Only uncompressed.
*/
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
#define BMP_ALIGN_CENTER 0x7FFF
#endif
int lcd_display_bitmap(ulong bmp_image, int x, int y)
{
#if !defined(CONFIG_MCC200)
ushort *cmap = NULL;
#endif
ushort *cmap_base = NULL;
ushort i, j;
uchar *fb;
bmp_image_t *bmp=(bmp_image_t *)bmp_image;
uchar *bmap;
ushort padded_line;
unsigned long width, height, byte_width;
unsigned long pwidth = panel_info.vl_col;
unsigned colors, bpix, bmp_bpix;
#if defined(CONFIG_CPU_PXA)
struct pxafb_info *fbi = &panel_info.pxa;
#elif defined(CONFIG_MPC823)
volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
volatile cpm8xx_t *cp = &(immr->im_cpm);
#endif
if (!((bmp->header.signature[0]=='B') &&
(bmp->header.signature[1]=='M'))) {
printf ("Error: no valid bmp image at %lx\n", bmp_image);
return 1;
}
width = le32_to_cpu (bmp->header.width);
height = le32_to_cpu (bmp->header.height);
bmp_bpix = le16_to_cpu(bmp->header.bit_count);
colors = 1 << bmp_bpix;
bpix = NBITS(panel_info.vl_bpix);
if ((bpix != 1) && (bpix != 8) && (bpix != 16)) {
printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
bpix, bmp_bpix);
return 1;
}
/* We support displaying 8bpp BMPs on 16bpp LCDs */
if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16)) {
printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
bpix,
le16_to_cpu(bmp->header.bit_count));
return 1;
}
debug ("Display-bmp: %d x %d with %d colors\n",
(int)width, (int)height, (int)colors);
#if !defined(CONFIG_MCC200)
/* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
if (bmp_bpix == 8) {
#if defined(CONFIG_CPU_PXA)
cmap = (ushort *)fbi->palette;
#elif defined(CONFIG_MPC823)
cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
#elif !defined(CONFIG_ATMEL_LCD)
cmap = panel_info.cmap;
#endif
cmap_base = cmap;
/* Set color map */
for (i=0; i<colors; ++i) {
bmp_color_table_entry_t cte = bmp->color_table[i];
#if !defined(CONFIG_ATMEL_LCD)
ushort colreg =
( ((cte.red) << 8) & 0xf800) |
( ((cte.green) << 3) & 0x07e0) |
( ((cte.blue) >> 3) & 0x001f) ;
#ifdef CONFIG_SYS_INVERT_COLORS
*cmap = 0xffff - colreg;
#else
*cmap = colreg;
#endif
#if defined(CONFIG_MPC823)
cmap--;
#else
cmap++;
#endif
#else /* CONFIG_ATMEL_LCD */
lcd_setcolreg(i, cte.red, cte.green, cte.blue);
#endif
}
}
#endif
/*
* BMP format for Monochrome assumes that the state of a
* pixel is described on a per Bit basis, not per Byte.
* So, in case of Monochrome BMP we should align widths
* on a byte boundary and convert them from Bit to Byte
* units.
* Probably, PXA250 and MPC823 process 1bpp BMP images in
* their own ways, so make the converting to be MCC200
* specific.
*/
#if defined(CONFIG_MCC200)
if (bpix==1)
{
width = ((width + 7) & ~7) >> 3;
x = ((x + 7) & ~7) >> 3;
pwidth= ((pwidth + 7) & ~7) >> 3;
}
#endif
padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
if (x == BMP_ALIGN_CENTER)
x = max(0, (pwidth - width) / 2);
else if (x < 0)
x = max(0, pwidth - width + x + 1);
if (y == BMP_ALIGN_CENTER)
y = max(0, (panel_info.vl_row - height) / 2);
else if (y < 0)
y = max(0, panel_info.vl_row - height + y + 1);
#endif /* CONFIG_SPLASH_SCREEN_ALIGN */
if ((x + width)>pwidth)
width = pwidth - x;
if ((y + height)>panel_info.vl_row)
height = panel_info.vl_row - y;
bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
fb = (uchar *) (lcd_base +
(y + height - 1) * lcd_line_length + x * bpix / 8);
switch (bmp_bpix) {
case 1: /* pass through */
case 8:
if (bpix != 16)
byte_width = width;
else
byte_width = width * 2;
for (i = 0; i < height; ++i) {
WATCHDOG_RESET();
for (j = 0; j < width; j++) {
if (bpix != 16) {
#if defined(CONFIG_CPU_PXA) || defined(CONFIG_ATMEL_LCD)
*(fb++) = *(bmap++);
#elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
*(fb++) = 255 - *(bmap++);
#endif
} else {
*(uint16_t *)fb = cmap_base[*(bmap++)];
fb += sizeof(uint16_t) / sizeof(*fb);
}
}
bmap += (width - padded_line);
fb -= (byte_width + lcd_line_length);
}
break;
#if defined(CONFIG_BMP_16BPP)
case 16:
for (i = 0; i < height; ++i) {
WATCHDOG_RESET();
for (j = 0; j < width; j++) {
#if defined(CONFIG_ATMEL_LCD_BGR555)
*(fb++) = ((bmap[0] & 0x1f) << 2) |
(bmap[1] & 0x03);
*(fb++) = (bmap[0] & 0xe0) |
((bmap[1] & 0x7c) >> 2);
bmap += 2;
#else
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
#endif
}
bmap += (padded_line - width) * 2;
fb -= (width * 2 + lcd_line_length);
}
break;
#endif /* CONFIG_BMP_16BPP */
default:
break;
};
return (0);
}
#endif
static void *lcd_logo (void)
{
#ifdef CONFIG_SPLASH_SCREEN
char *s;
ulong addr;
static int do_splash = 1;
if (do_splash && (s = getenv("splashimage")) != NULL) {
int x = 0, y = 0;
do_splash = 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 */
#ifdef CONFIG_VIDEO_BMP_GZIP
bmp_image_t *bmp = (bmp_image_t *)addr;
unsigned long len;
if (!((bmp->header.signature[0]=='B') &&
(bmp->header.signature[1]=='M'))) {
addr = (ulong)gunzip_bmp(addr, &len);
}
#endif
if (lcd_display_bitmap (addr, x, y) == 0) {
return ((void *)lcd_base);
}
}
#endif /* CONFIG_SPLASH_SCREEN */
#ifdef CONFIG_LCD_LOGO
bitmap_plot (0, 0);
#endif /* CONFIG_LCD_LOGO */
#ifdef CONFIG_LCD_INFO
console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
lcd_show_board_info();
#endif /* CONFIG_LCD_INFO */
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
#else
return ((void *)lcd_base);
#endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
}
/************************************************************************/
/************************************************************************/
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