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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 <search.h>
#include <env_callback.h>
#include <linux/types.h>
#include <stdio_dev.h>
#if defined(CONFIG_POST)
#include <post.h>
#endif
#include <lcd.h>
#include <watchdog.h>
#include <splash.h>
#include <asm/jz_cache.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
#if defined(CONFIG_LCD_DT_SIMPLEFB)
#include <libfdt.h>
#endif
/************************************************************************/
/* ** FONT DATA */
/************************************************************************/
#include <video_font.h> /* Get font data, width and height */
#include <video_font_data.h>
//#define LCD_TEST_PATTERN
/************************************************************************/
/* ** LOGO DATA */
/************************************************************************/
#ifdef CONFIG_LCD_LOGO
#ifdef CONFIG_RLE_LCD_LOGO
#include <rle_logo.h>
#else
# include <bmp_logo.h> /* Get logo data, width and height */
# include <bmp_logo_data.h>
/*the new uboot do not support jzfb format
# if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
# error Default Color Map overlaps with Logo Color Map
# endif
*/
#endif
#endif
#ifndef CONFIG_LCD_ALIGNMENT
#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
#endif
/* By default we scroll by a single line */
#ifndef CONFIG_CONSOLE_SCROLL_LINES
#define CONFIG_CONSOLE_SCROLL_LINES 1
#endif
/************************************************************************/
/* ** CONSOLE DEFINITIONS & FUNCTIONS */
/************************************************************************/
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
# define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
/ VIDEO_FONT_HEIGHT)
#else
# define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
#endif
#define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
#define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
#define CONSOLE_ROW_FIRST lcd_console_address
#define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
#define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
- CONSOLE_ROW_SIZE)
#define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
#define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
#if LCD_BPP == LCD_MONOCHROME
# define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
(c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
#elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16 || (LCD_BPP == LCD_COLOR32))
# define COLOR_MASK(c) (c)
#else
# error Unsupported LCD BPP.
#endif
DECLARE_GLOBAL_DATA_PTR;
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);
static int lcd_color_fg;
static int lcd_color_bg;
int lcd_line_length;
char lcd_is_enabled = 0;
static short console_col;
static short console_row;
static void *lcd_console_address;
static void *lcd_base; /* Start of framebuffer memory */
static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
extern int flush_cache_all(void);
/************************************************************************/
/**
* lcd_restart_dma() - Restart the dma of lcd controler
* This is a weak function, a typical
* implementation at drivers/video/jz_lcd/jz_lcd_v1_2.c
*/
__weak void lcd_dma_sync(void)
{
return;
}
/* Flush LCD activity to the caches */
void lcd_sync(void)
{
/*
* flush_dcache_range() is declared in common.h but it seems that some
* architectures do not actually implement it. Is there a way to find
* out whether it exists? For now, ARM is safe.
*/
#if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) || defined(CONFIG_MIPS32)
int line_length;
if (lcd_flush_dcache)
flush_dcache_range((u32)lcd_base,
(u32)(lcd_base + lcd_get_size(&line_length)));
#endif
lcd_dma_sync();
}
void lcd_set_flush_dcache(int flush)
{
lcd_flush_dcache = (flush != 0);
}
/*----------------------------------------------------------------------*/
static void console_scrollup(void)
{
/*rows is the number of row we will move,default 1*/
const int rows = CONFIG_CONSOLE_SCROLL_LINES;
/* Copy up rows ignoring those that will be overwritten */
memcpy(CONSOLE_ROW_FIRST,
lcd_console_address + CONSOLE_ROW_SIZE * rows,
CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
/* Clear the last rows */
memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
COLOR_MASK(lcd_color_bg),
CONSOLE_ROW_SIZE * rows);
lcd_sync();
/*console_row is the number of rest rows*/
console_row -= rows;
}
/*----------------------------------------------------------------------*/
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_col = 0;
/* Check if we need to scroll the terminal */
if (++console_row >= CONSOLE_ROWS)
console_scrollup();
else
lcd_sync();
}
/*----------------------------------------------------------------------*/
void lcd_putc(const char c)
{
serial_putc(c);
if (!lcd_is_enabled) {
return;
}
/*the rest of lcd do not display a line console*/
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
if ( BMP_LOGO_HEIGHT > (panel_info.vl_row - 2*VIDEO_FONT_HEIGHT))
return ;
#endif
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();
}
}
/*----------------------------------------------------------------------*/
void lcd_puts(const char *s)
{
if (!lcd_is_enabled) {
serial_puts(s);
return;
}
while (*s)
lcd_putc(*s++);
lcd_sync();
}
/*----------------------------------------------------------------------*/
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 defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
y += BMP_LOGO_HEIGHT;
#endif
#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;
}
#elif LCD_BPP == LCD_COLOR32
uint *m = (uint *)d;
for (c=0; c< 8 ; ++c) {
*m++ = (bits & 0x80) ?
lcd_color_fg : lcd_color_bg;
d+=4;
bits <<= 1;
}
#endif
}
#if LCD_BPP == LCD_MONOCHROME
*d = rest | (*d & ((1 << (8 - off)) - 1));
#endif
}
flush_cache_all();
}
/*----------------------------------------------------------------------*/
static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
{
lcd_drawchars(x, y, s, strlen((char *)s));
}
/*----------------------------------------------------------------------*/
static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
{
lcd_drawchars(x, y, &c, 1);
}
/************************************************************************/
/** Small utility to check that you got the colours right */
/************************************************************************/
#ifdef LCD_TEST_PATTERN
#define N_BLK_VERT 2
#define N_BLK_HOR 3
/*
* Simple color definitions
*/
#define CONSOLE_COLOR_BLACK 0
#define CONSOLE_COLOR_RED 1
#define CONSOLE_COLOR_GREEN 2
#define CONSOLE_COLOR_YELLOW 3
#define CONSOLE_COLOR_BLUE 4
#define CONSOLE_COLOR_MAGENTA 5
#define CONSOLE_COLOR_CYAN 6
#define CONSOLE_COLOR_GREY 13
#define CONSOLE_COLOR_GREY2 14
#define CONSOLE_COLOR_WHITE 15 /* Must remain last / highest */
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 lcd_get_size(int *line_length)
{
*line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
return *line_length * panel_info.vl_row;
}
int drv_lcd_init(void)
{
struct stdio_dev lcddev;
int rc;
lcd_base = (void *) gd->fb_base;
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;
}
/*----------------------------------------------------------------------*/
void lcd_clear_black(void)
{
unsigned int i;
int *lcdbase_p = (int *) gd->fb_base;
memset((void*)lcdbase_p, 0x00, lcd_line_length*panel_info.vl_row);
lcd_sync();
}
/*----------------------------------------------------------------------*/
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);
*/
#if LCD_BPP == LCD_COLOR16
long long i;
short *lcdbase_p = (short *)lcd_base;
for(i=0;i<lcd_line_length*panel_info.vl_row/2;i++)
*lcdbase_p++ = COLOR_MASK(lcd_getbgcolor());
#elif LCD_BPP == LCD_COLOR32
long long i;
int *lcdbase_p = (int *)lcd_base;
for(i=0;i<lcd_line_length*panel_info.vl_row/4;i++)
*lcdbase_p++ = COLOR_MASK(lcd_getbgcolor());
#else
memset ((char *)lcd_base,
COLOR_MASK(lcd_getbgcolor()),
lcd_line_length*panel_info.vl_row);
#endif
#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;
lcd_sync();
}
static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
lcd_clear();
//lcd_clear_black();
return 0;
}
U_BOOT_CMD(
cls, 1, 1, do_lcd_clear,
"clear screen",
""
);
/*----------------------------------------------------------------------*/
static int lcd_init(void *lcdbase)
{
#ifdef DEFAULT_BACKLIGHT_LEVEL
lcd_set_backlight_level(CONFIG_SYS_BACKLIGHT_LEVEL);
#else
lcd_set_backlight_level(80);
#endif
/* Initialize the lcd controller */
debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
lcd_ctrl_init(lcdbase);
/*
* lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
* the 'lcdbase' argument and uses custom lcd base address
* by setting up gd->fb_base. Check for this condition and fixup
* 'lcd_base' address.
*/
if ((unsigned long)lcdbase != gd->fb_base)
lcd_base = (void *)gd->fb_base;
debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
lcd_get_size(&lcd_line_length);
lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
lcd_is_enabled = 1;
lcd_clear();
lcd_enable();
/* Initialize the console */
console_col = 0;
#ifdef CONFIG_LCD_INFO_BELOW_LOGO
console_row = 1 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
#else
console_row = 1; /* leave 1 blank line below logo */
#endif
lcd_is_enabled = 1;
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;
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 = lcd_get_size(&line_length);
/* Round up to nearest full page, or MMU section if defined */
size = (size + PAGE_SIZE + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
size += PAGE_SIZE*2; /* Allocate 2 page for lcd dma desc */
/* 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;
}
/*----------------------------------------------------------------------*/
int lcd_getfgcolor(void)
{
return lcd_color_fg;
}
/*----------------------------------------------------------------------*/
static int lcd_getbgcolor(void)
{
return lcd_color_bg;
}
/************************************************************************/
/* ** Chipset depending Bitmap / Logo stuff... */
/************************************************************************/
static inline ushort *configuration_get_cmap(void)
{
#if defined CONFIG_CPU_PXA
struct pxafb_info *fbi = &panel_info.pxa;
return (ushort *)fbi->palette;
#elif defined(CONFIG_MPC823)
immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
cpm8xx_t *cp = &(immr->im_cpm);
return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
#elif defined(CONFIG_ATMEL_LCD)
return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
#elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
return panel_info.cmap;
#elif defined(CONFIG_LCD_LOGO)
return bmp_logo_palette;
#else
return NULL;
#endif
}
#if defined (CONFIG_LCD_LOGO) && !defined (CONFIG_RLE_LCD_LOGO)
void bitmap_plot(int x, int y)
{
#ifdef CONFIG_ATMEL_LCD
uint *cmap = (uint *)bmp_logo_palette;
#else
ushort *cmap = (ushort *)bmp_logo_palette;
#endif
ushort i, j;
#if (BMP_LOGO_NBIT == 24)
unsigned int *bmap;
#else
unsigned char *bmap;
#endif
uchar *fb;
ushort *fb16;
uint *fb32;
#if defined(CONFIG_MPC823)
immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
cpm8xx_t *cp = &(immr->im_cpm);
#endif
unsigned bpix = NBITS(panel_info.vl_bpix);
debug("Logo: width %d height %d colors %d cmap %d\n",
BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
ARRAY_SIZE(bmp_logo_palette));
bmap = &bmp_logo_bitmap[0];
fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
if (bpix < 12) {
/* Leave room for default color map
* default case: generic system with no cmap (most likely 16bpp)
* cmap was set to the source palette, so no change is done.
* This avoids even more ifdefs in the next stanza
*/
#if defined(CONFIG_MPC823)
cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
#elif defined(CONFIG_ATMEL_LCD)
cmap = (uint *)configuration_get_cmap();
#else
cmap = configuration_get_cmap();
#endif
WATCHDOG_RESET();
/* Set color map */
for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++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 */
if(NBITS(panel_info.vl_bpix) == 16){
u16 col16;
fb16 = (ushort *)fb;
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;
}
}
else if (NBITS(panel_info.vl_bpix) == 32){
u16 col16;
fb32 = (uint *)(lcd_base + y * lcd_line_length + x * bpix / 8);
for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
for (j=0; j<BMP_LOGO_WIDTH; j++) {
col16 = bmp_logo_palette[(bmap[j]-16)];
/*the bitmap is 12bit,4bit each color.we should change the 12bit to 24bit(888)*/
#if (BMP_LOGO_NBIT == 24)
fb32[j] = bmp_logo_bitmap[BMP_LOGO_WIDTH * (BMP_LOGO_HEIGHT - i - 1) + j];
#else
fb32[j] =
((col16 & 0x000F) << 4) |
((col16 & 0x00F0) << 8) |
((col16 & 0x0F00) << 12);
#endif
}
bmap += BMP_LOGO_WIDTH;
fb32 += panel_info.vl_col;
}
}
else
printf("The U-boot do not support this bpix!\n");
}
WATCHDOG_RESET();
lcd_sync();
}
#else
static inline void bitmap_plot(int x, int y) {}
#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
static void splash_align_axis(int *axis, unsigned long panel_size,
unsigned long picture_size)
{
unsigned long panel_picture_delta = panel_size - picture_size;
unsigned long axis_alignment;
if (*axis == BMP_ALIGN_CENTER)
axis_alignment = panel_picture_delta / 2;
else if (*axis < 0)
axis_alignment = panel_picture_delta + *axis + 1;
else
return;
*axis = max(0, axis_alignment);
}
#endif
#ifdef CONFIG_LCD_BMP_RLE8
#define BMP_RLE8_ESCAPE 0
#define BMP_RLE8_EOL 0
#define BMP_RLE8_EOBMP 1
#define BMP_RLE8_DELTA 2
static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
int cnt)
{
while (cnt > 0) {
*(*fbp)++ = cmap[*bmap++];
cnt--;
}
}
static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
{
ushort *fb = *fbp;
int cnt_8copy = cnt >> 3;
cnt -= cnt_8copy << 3;
while (cnt_8copy > 0) {
*fb++ = c;
*fb++ = c;
*fb++ = c;
*fb++ = c;
*fb++ = c;
*fb++ = c;
*fb++ = c;
*fb++ = c;
cnt_8copy--;
}
while (cnt > 0) {
*fb++ = c;
cnt--;
}
*fbp = fb;
}
/*
* Do not call this function directly, must be called from lcd_display_bitmap.
*/
static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
int x_off, int y_off)
{
uchar *bmap;
ulong width, height;
ulong cnt, runlen;
int x, y;
int decode = 1;
width = le32_to_cpu(bmp->header.width);
height = le32_to_cpu(bmp->header.height);
bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
x = 0;
y = height - 1;
while (decode) {
if (bmap[0] == BMP_RLE8_ESCAPE) {
switch (bmap[1]) {
case BMP_RLE8_EOL:
/* end of line */
bmap += 2;
x = 0;
y--;
/* 16bpix, 2-byte per pixel, width should *2 */
fb -= (width * 2 + lcd_line_length);
break;
case BMP_RLE8_EOBMP:
/* end of bitmap */
decode = 0;
break;
case BMP_RLE8_DELTA:
/* delta run */
x += bmap[2];
y -= bmap[3];
/* 16bpix, 2-byte per pixel, x should *2 */
fb = (uchar *) (lcd_base + (y + y_off - 1)
* lcd_line_length + (x + x_off) * 2);
bmap += 4;
break;
default:
/* unencoded run */
runlen = bmap[1];
bmap += 2;
if (y < height) {
if (x < width) {
if (x + runlen > width)
cnt = width - x;
else
cnt = runlen;
draw_unencoded_bitmap(
(ushort **)&fb,
bmap, cmap, cnt);
}
x += runlen;
}
bmap += runlen;
if (runlen & 1)
bmap++;
}
} else {
/* encoded run */
if (y < height) {
runlen = bmap[0];
if (x < width) {
/* aggregate the same code */
while (bmap[0] == 0xff &&
bmap[2] != BMP_RLE8_ESCAPE &&
bmap[1] == bmap[3]) {
runlen += bmap[2];
bmap += 2;
}
if (x + runlen > width)
cnt = width - x;
else
cnt = runlen;
draw_encoded_bitmap((ushort **)&fb,
cmap[bmap[1]], cnt);
}
x += runlen;
}
bmap += 2;
}
}
}
#endif
#if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
#define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
#else
#define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
#endif
#if defined(CONFIG_BMP_16BPP)
#if defined(CONFIG_ATMEL_LCD_BGR555)
static inline void fb_put_word(uchar **fb, uchar **from)
{
*(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
*(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
*from += 2;
}