u-boot/common/lcd.c
Nikita Kiryanov 904672ee48 lcd: refactor lcd console stuff into its own file
common/lcd.c is a mix of code portions that do different but related
things. To improve modularity, the various code portions should be split
into their own modules. Separate lcd console code into its own file.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2015-01-10 17:53:59 +01:00

967 lines
23 KiB
C

/*
* Common LCD routines for supported CPUs
*
* (C) Copyright 2001-2002
* Wolfgang Denk, DENX Software Engineering -- wd@denx.de
*
* SPDX-License-Identifier: GPL-2.0+
*/
/************************************************************************/
/* ** 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 <asm/unaligned.h>
#include <splash.h>
#include <asm/io.h>
#include <asm/unaligned.h>
#include <fdt_support.h>
#if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
defined(CONFIG_CPU_MONAHANS)
#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 */
/************************************************************************/
/* ** 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
#ifdef CONFIG_SANDBOX
#include <asm/sdl.h>
#endif
#ifndef CONFIG_LCD_ALIGNMENT
#define CONFIG_LCD_ALIGNMENT PAGE_SIZE
#endif
#if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
(LCD_BPP != LCD_COLOR32)
# error Unsupported LCD BPP.
#endif
DECLARE_GLOBAL_DATA_PTR;
static int lcd_init(void *lcdbase);
static void *lcd_logo(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 void *lcd_base; /* Start of framebuffer memory */
static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
/************************************************************************/
/* 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)
int line_length;
if (lcd_flush_dcache)
flush_dcache_range((u32)lcd_base,
(u32)(lcd_base + lcd_get_size(&line_length)));
#elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
static ulong last_sync;
if (get_timer(last_sync) > 10) {
sandbox_sdl_sync(lcd_base);
last_sync = get_timer(0);
}
#endif
}
void lcd_set_flush_dcache(int flush)
{
lcd_flush_dcache = (flush != 0);
}
/*----------------------------------------------------------------------*/
static void lcd_stub_putc(struct stdio_dev *dev, const char c)
{
lcd_putc(c);
}
static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
{
lcd_puts(s);
}
/************************************************************************/
/** 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 */
/************************************************************************/
/*
* With most lcd drivers the line length is set up
* by calculating it from panel_info parameters. Some
* drivers need to calculate the line length differently,
* so make the function weak to allow overriding it.
*/
__weak 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 = map_sysmem(gd->fb_base, 0);
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_stub_putc; /* 'putc' function */
lcddev.puts = lcd_stub_puts; /* 'puts' function */
rc = stdio_register(&lcddev);
return (rc == 0) ? 1 : rc;
}
/*----------------------------------------------------------------------*/
void lcd_clear(void)
{
short console_rows, console_cols;
int bg_color;
#if 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);
bg_color = CONSOLE_COLOR_WHITE;
#else
lcd_setfgcolor(CONSOLE_COLOR_WHITE);
lcd_setbgcolor(CONSOLE_COLOR_BLACK);
bg_color = CONSOLE_COLOR_BLACK;
#endif /* CONFIG_SYS_WHITE_ON_BLACK */
#ifdef LCD_TEST_PATTERN
test_pattern();
#else
/* set framebuffer to background color */
#if (LCD_BPP != LCD_COLOR32)
memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
#else
u32 *ppix = lcd_base;
u32 i;
for (i = 0;
i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
i++) {
*ppix++ = bg_color;
}
#endif
#endif
/* Paint the logo and retrieve LCD base address */
debug("[LCD] Drawing the logo...\n");
#if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT);
console_rows /= VIDEO_FONT_HEIGHT;
#else
console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT;
#endif
console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH;
lcd_init_console(lcd_logo(), console_rows, console_cols);
lcd_sync();
}
static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
char *const argv[])
{
lcd_clear();
return 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_ctrl_init() of some drivers (i.e. bcm2835 on rpi) 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 (map_to_sysmem(lcdbase) != gd->fb_base)
lcd_base = map_sysmem(gd->fb_base, 0);
debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
lcd_get_size(&lcd_line_length);
lcd_is_enabled = 1;
lcd_clear();
lcd_enable();
/* Initialize the console */
lcd_set_col(0);
#ifdef CONFIG_LCD_INFO_BELOW_LOGO
lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
#else
lcd_set_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;
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 = ALIGN(size, CONFIG_LCD_ALIGNMENT);
addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
/* 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;
}
int lcd_getfgcolor(void)
{
return lcd_color_fg;
}
/*----------------------------------------------------------------------*/
static void lcd_setbgcolor(int color)
{
lcd_color_bg = color;
}
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
}
#ifdef CONFIG_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;
uchar *bmap;
uchar *fb;
ushort *fb16;
#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 */
*cmap++ = colreg;
#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 *)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;
}
}
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, (int)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 = get_unaligned_le32(&bmp->header.width);
height = get_unaligned_le32(&bmp->header.height);
bmap = (uchar *)bmp + get_unaligned_le32(&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)
#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;
}
#else
static inline void fb_put_word(uchar **fb, uchar **from)
{
*(*fb)++ = *(*from)++;
*(*fb)++ = *(*from)++;
}
#endif
#endif /* CONFIG_BMP_16BPP */
int lcd_display_bitmap(ulong bmp_image, int x, int y)
{
ushort *cmap = NULL;
ushort *cmap_base = NULL;
ushort i, j;
uchar *fb;
bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
uchar *bmap;
ushort padded_width;
unsigned long width, height, byte_width;
unsigned long pwidth = panel_info.vl_col;
unsigned colors, bpix, bmp_bpix;
if (!bmp || !(bmp->header.signature[0] == 'B' &&
bmp->header.signature[1] == 'M')) {
printf("Error: no valid bmp image at %lx\n", bmp_image);
return 1;
}
width = get_unaligned_le32(&bmp->header.width);
height = get_unaligned_le32(&bmp->header.height);
bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
colors = 1 << bmp_bpix;
bpix = NBITS(panel_info.vl_bpix);
if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
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
* and displaying 24bpp BMPs on 32bpp LCDs
* */
if (bpix != bmp_bpix &&
!(bmp_bpix == 8 && bpix == 16) &&
!(bmp_bpix == 24 && bpix == 32)) {
printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
bpix, get_unaligned_le16(&bmp->header.bit_count));
return 1;
}
debug("Display-bmp: %d x %d with %d colors\n",
(int)width, (int)height, (int)colors);
if (bmp_bpix == 8) {
cmap = configuration_get_cmap();
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) ;
*cmap = colreg;
#if defined(CONFIG_MPC823)
cmap--;
#else
cmap++;
#endif
#else /* CONFIG_ATMEL_LCD */
lcd_setcolreg(i, cte.red, cte.green, cte.blue);
#endif
}
}
padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
#ifdef CONFIG_SPLASH_SCREEN_ALIGN
splash_align_axis(&x, pwidth, width);
splash_align_axis(&y, panel_info.vl_row, height);
#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 + get_unaligned_le32(&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: {
#ifdef CONFIG_LCD_BMP_RLE8
u32 compression = get_unaligned_le32(&bmp->header.compression);
if (compression == BMP_BI_RLE8) {
if (bpix != 16) {
/* TODO implement render code for bpix != 16 */
printf("Error: only support 16 bpix");
return 1;
}
lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
break;
}
#endif
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) {
FB_PUT_BYTE(fb, bmap);
} else {
*(uint16_t *)fb = cmap_base[*(bmap++)];
fb += sizeof(uint16_t) / sizeof(*fb);
}
}
bmap += (padded_width - width);
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++)
fb_put_word(&fb, &bmap);
bmap += (padded_width - width) * 2;
fb -= width * 2 + lcd_line_length;
}
break;
#endif /* CONFIG_BMP_16BPP */
#if defined(CONFIG_BMP_24BMP)
case 24:
for (i = 0; i < height; ++i) {
for (j = 0; j < width; j++) {
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
*(fb++) = 0;
}
fb -= lcd_line_length + width * (bpix / 8);
}
break;
#endif /* CONFIG_BMP_24BMP */
#if defined(CONFIG_BMP_32BPP)
case 32:
for (i = 0; i < height; ++i) {
for (j = 0; j < width; j++) {
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
*(fb++) = *(bmap++);
}
fb -= lcd_line_length + width * (bpix / 8);
}
break;
#endif /* CONFIG_BMP_32BPP */
default:
break;
};
lcd_sync();
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;
if (splash_screen_prepare())
return (void *)lcd_base;
addr = simple_strtoul (s, NULL, 16);
splash_get_pos(&x, &y);
if (bmp_display(addr, x, y) == 0)
return (void *)lcd_base;
}
#endif /* CONFIG_SPLASH_SCREEN */
bitmap_plot(0, 0);
#ifdef CONFIG_LCD_INFO
lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
lcd_set_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 && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
}
#ifdef CONFIG_SPLASHIMAGE_GUARD
static int on_splashimage(const char *name, const char *value, enum env_op op,
int flags)
{
ulong addr;
int aligned;
if (op == env_op_delete)
return 0;
addr = simple_strtoul(value, NULL, 16);
/* See README.displaying-bmps */
aligned = (addr % 4 == 2);
if (!aligned) {
printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
return -1;
}
return 0;
}
U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
#endif
int lcd_get_pixel_width(void)
{
return panel_info.vl_col;
}
int lcd_get_pixel_height(void)
{
return panel_info.vl_row;
}
#if defined(CONFIG_LCD_DT_SIMPLEFB)
static int lcd_dt_simplefb_configure_node(void *blob, int off)
{
#if LCD_BPP == LCD_COLOR16
return fdt_setup_simplefb_node(blob, off, gd->fb_base,
panel_info.vl_col, panel_info.vl_row,
panel_info.vl_col * 2, "r5g6b5");
#else
return -1;
#endif
}
int lcd_dt_simplefb_add_node(void *blob)
{
static const char compat[] = "simple-framebuffer";
static const char disabled[] = "disabled";
int off, ret;
off = fdt_add_subnode(blob, 0, "framebuffer");
if (off < 0)
return -1;
ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
if (ret < 0)
return -1;
ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
if (ret < 0)
return -1;
return lcd_dt_simplefb_configure_node(blob, off);
}
int lcd_dt_simplefb_enable_existing_node(void *blob)
{
int off;
off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
if (off < 0)
return -1;
return lcd_dt_simplefb_configure_node(blob, off);
}
#endif