2 * Common LCD routines for supported CPUs
4 * (C) Copyright 2001-2002
5 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
7 * SPDX-License-Identifier: GPL-2.0+
10 /************************************************************************/
12 /************************************************************************/
21 #include <env_callback.h>
22 #include <linux/types.h>
23 #include <stdio_dev.h>
24 #if defined(CONFIG_POST)
29 #include <asm/unaligned.h>
32 #include <asm/unaligned.h>
33 #include <fdt_support.h>
35 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
36 defined(CONFIG_CPU_MONAHANS)
37 #include <asm/byteorder.h>
40 #if defined(CONFIG_MPC823)
44 #if defined(CONFIG_ATMEL_LCD)
45 #include <atmel_lcdc.h>
48 #if defined(CONFIG_LCD_DT_SIMPLEFB)
52 /************************************************************************/
54 /************************************************************************/
55 #include <video_font.h> /* Get font data, width and height */
57 /************************************************************************/
59 /************************************************************************/
60 #ifdef CONFIG_LCD_LOGO
61 # include <bmp_logo.h> /* Get logo data, width and height */
62 # include <bmp_logo_data.h>
63 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
64 # error Default Color Map overlaps with Logo Color Map
72 #ifndef CONFIG_LCD_ALIGNMENT
73 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
76 /* By default we scroll by a single line */
77 #ifndef CONFIG_CONSOLE_SCROLL_LINES
78 #define CONFIG_CONSOLE_SCROLL_LINES 1
81 /************************************************************************/
82 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
83 /************************************************************************/
84 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
85 #define CONSOLE_ROW_FIRST lcd_console_address
86 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
87 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
89 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * console_rows)
90 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
92 #if (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || \
93 (LCD_BPP == LCD_COLOR32)
94 # define COLOR_MASK(c) (c)
96 # error Unsupported LCD BPP.
99 DECLARE_GLOBAL_DATA_PTR;
101 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
102 static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
104 static int lcd_init(void *lcdbase);
106 static void *lcd_logo(void);
108 static void lcd_setfgcolor(int color);
109 static void lcd_setbgcolor(int color);
111 static int lcd_color_fg;
112 static int lcd_color_bg;
115 char lcd_is_enabled = 0;
117 static short console_curr_col;
118 static short console_curr_row;
119 static short console_cols;
120 static short console_rows;
122 static void *lcd_console_address;
123 static void *lcd_base; /* Start of framebuffer memory */
125 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
127 /************************************************************************/
129 /* Flush LCD activity to the caches */
133 * flush_dcache_range() is declared in common.h but it seems that some
134 * architectures do not actually implement it. Is there a way to find
135 * out whether it exists? For now, ARM is safe.
137 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
140 if (lcd_flush_dcache)
141 flush_dcache_range((u32)lcd_base,
142 (u32)(lcd_base + lcd_get_size(&line_length)));
143 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
144 static ulong last_sync;
146 if (get_timer(last_sync) > 10) {
147 sandbox_sdl_sync(lcd_base);
148 last_sync = get_timer(0);
153 void lcd_set_flush_dcache(int flush)
155 lcd_flush_dcache = (flush != 0);
158 void lcd_init_console(void *address, int rows, int cols)
160 console_curr_col = 0;
161 console_curr_row = 0;
164 lcd_console_address = address;
167 void lcd_set_col(short col)
169 console_curr_col = col;
172 void lcd_set_row(short row)
174 console_curr_row = row;
177 /*----------------------------------------------------------------------*/
179 static void console_scrollup(void)
181 const int rows = CONFIG_CONSOLE_SCROLL_LINES;
183 /* Copy up rows ignoring those that will be overwritten */
184 memcpy(CONSOLE_ROW_FIRST,
185 lcd_console_address + CONSOLE_ROW_SIZE * rows,
186 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
188 /* Clear the last rows */
189 #if (LCD_BPP != LCD_COLOR32)
190 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
191 COLOR_MASK(lcd_color_bg),
192 CONSOLE_ROW_SIZE * rows);
194 u32 *ppix = lcd_console_address +
195 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows;
198 i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix);
200 *ppix++ = COLOR_MASK(lcd_color_bg);
204 console_curr_row -= rows;
207 /*----------------------------------------------------------------------*/
209 static inline void console_back(void)
211 if (--console_curr_col < 0) {
212 console_curr_col = console_cols - 1;
213 if (--console_curr_row < 0)
214 console_curr_row = 0;
217 lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH,
218 console_curr_row * VIDEO_FONT_HEIGHT, ' ');
221 /*----------------------------------------------------------------------*/
223 static inline void console_newline(void)
225 console_curr_col = 0;
227 /* Check if we need to scroll the terminal */
228 if (++console_curr_row >= console_rows)
234 /*----------------------------------------------------------------------*/
236 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
241 void lcd_putc(const char c)
243 if (!lcd_is_enabled) {
251 console_curr_col = 0;
258 case '\t': /* Tab (8 chars alignment) */
259 console_curr_col += 8;
260 console_curr_col &= ~7;
262 if (console_curr_col >= console_cols)
271 lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH,
272 console_curr_row * VIDEO_FONT_HEIGHT, c);
273 if (++console_curr_col >= console_cols)
278 /*----------------------------------------------------------------------*/
280 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
285 void lcd_puts(const char *s)
287 if (!lcd_is_enabled) {
299 /*----------------------------------------------------------------------*/
301 void lcd_printf(const char *fmt, ...)
304 char buf[CONFIG_SYS_PBSIZE];
307 vsprintf(buf, fmt, args);
313 /************************************************************************/
314 /* ** Low-Level Graphics Routines */
315 /************************************************************************/
317 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
322 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
323 y += BMP_LOGO_HEIGHT;
326 dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8);
328 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
331 #if LCD_BPP == LCD_COLOR16
332 ushort *d = (ushort *)dest;
333 #elif LCD_BPP == LCD_COLOR32
334 u32 *d = (u32 *)dest;
339 for (i = 0; i < count; ++i) {
343 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
345 for (c = 0; c < 8; ++c) {
346 *d++ = (bits & 0x80) ?
347 lcd_color_fg : lcd_color_bg;
354 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
356 lcd_drawchars(x, y, &c, 1);
359 /************************************************************************/
360 /** Small utility to check that you got the colours right */
361 /************************************************************************/
362 #ifdef LCD_TEST_PATTERN
367 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
368 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
369 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
372 static void test_pattern(void)
374 ushort v_max = panel_info.vl_row;
375 ushort h_max = panel_info.vl_col;
376 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
377 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
379 uchar *pix = (uchar *)lcd_base;
381 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
382 h_max, v_max, h_step, v_step);
384 /* WARNING: Code silently assumes 8bit/pixel */
385 for (v = 0; v < v_max; ++v) {
386 uchar iy = v / v_step;
387 for (h = 0; h < h_max; ++h) {
388 uchar ix = N_BLK_HOR * iy + h / h_step;
389 *pix++ = test_colors[ix];
393 #endif /* LCD_TEST_PATTERN */
396 /************************************************************************/
397 /* ** GENERIC Initialization Routines */
398 /************************************************************************/
400 * With most lcd drivers the line length is set up
401 * by calculating it from panel_info parameters. Some
402 * drivers need to calculate the line length differently,
403 * so make the function weak to allow overriding it.
405 __weak int lcd_get_size(int *line_length)
407 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
408 return *line_length * panel_info.vl_row;
411 int drv_lcd_init(void)
413 struct stdio_dev lcddev;
416 lcd_base = map_sysmem(gd->fb_base, 0);
418 lcd_init(lcd_base); /* LCD initialization */
420 /* Device initialization */
421 memset(&lcddev, 0, sizeof(lcddev));
423 strcpy(lcddev.name, "lcd");
424 lcddev.ext = 0; /* No extensions */
425 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
426 lcddev.putc = lcd_stub_putc; /* 'putc' function */
427 lcddev.puts = lcd_stub_puts; /* 'puts' function */
429 rc = stdio_register(&lcddev);
431 return (rc == 0) ? 1 : rc;
434 /*----------------------------------------------------------------------*/
437 short console_rows, console_cols;
438 #if LCD_BPP == LCD_COLOR8
439 /* Setting the palette */
440 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
441 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
442 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
443 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
444 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
445 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
446 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
447 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
448 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
451 #ifndef CONFIG_SYS_WHITE_ON_BLACK
452 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
453 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
455 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
456 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
457 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
459 #ifdef LCD_TEST_PATTERN
462 /* set framebuffer to background color */
463 #if (LCD_BPP != LCD_COLOR32)
464 memset((char *)lcd_base,
465 COLOR_MASK(lcd_color_bg),
466 lcd_line_length * panel_info.vl_row);
468 u32 *ppix = lcd_base;
471 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
473 *ppix++ = COLOR_MASK(lcd_color_bg);
477 /* Paint the logo and retrieve LCD base address */
478 debug("[LCD] Drawing the logo...\n");
479 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
480 console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT);
481 console_rows /= VIDEO_FONT_HEIGHT;
483 console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT;
485 console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH;
486 lcd_init_console(lcd_logo(), console_rows, console_cols);
490 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
498 cls, 1, 1, do_lcd_clear,
503 /*----------------------------------------------------------------------*/
505 static int lcd_init(void *lcdbase)
507 /* Initialize the lcd controller */
508 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
510 lcd_ctrl_init(lcdbase);
513 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
514 * the 'lcdbase' argument and uses custom lcd base address
515 * by setting up gd->fb_base. Check for this condition and fixup
516 * 'lcd_base' address.
518 if (map_to_sysmem(lcdbase) != gd->fb_base)
519 lcd_base = map_sysmem(gd->fb_base, 0);
521 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
523 lcd_get_size(&lcd_line_length);
528 /* Initialize the console */
530 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
531 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
533 lcd_set_row(1); /* leave 1 blank line below logo */
540 /************************************************************************/
541 /* ** ROM capable initialization part - needed to reserve FB memory */
542 /************************************************************************/
544 * This is called early in the system initialization to grab memory
545 * for the LCD controller.
546 * Returns new address for monitor, after reserving LCD buffer memory
548 * Note that this is running from ROM, so no write access to global data.
550 ulong lcd_setmem(ulong addr)
555 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
556 panel_info.vl_row, NBITS(panel_info.vl_bpix));
558 size = lcd_get_size(&line_length);
560 /* Round up to nearest full page, or MMU section if defined */
561 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
562 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
564 /* Allocate pages for the frame buffer. */
567 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
573 /*----------------------------------------------------------------------*/
575 static void lcd_setfgcolor(int color)
577 lcd_color_fg = color;
580 /*----------------------------------------------------------------------*/
582 static void lcd_setbgcolor(int color)
584 lcd_color_bg = color;
587 /************************************************************************/
588 /* ** Chipset depending Bitmap / Logo stuff... */
589 /************************************************************************/
590 static inline ushort *configuration_get_cmap(void)
592 #if defined CONFIG_CPU_PXA
593 struct pxafb_info *fbi = &panel_info.pxa;
594 return (ushort *)fbi->palette;
595 #elif defined(CONFIG_MPC823)
596 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
597 cpm8xx_t *cp = &(immr->im_cpm);
598 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
599 #elif defined(CONFIG_ATMEL_LCD)
600 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
601 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
602 return panel_info.cmap;
603 #elif defined(CONFIG_LCD_LOGO)
604 return bmp_logo_palette;
610 #ifdef CONFIG_LCD_LOGO
611 void bitmap_plot(int x, int y)
613 #ifdef CONFIG_ATMEL_LCD
614 uint *cmap = (uint *)bmp_logo_palette;
616 ushort *cmap = (ushort *)bmp_logo_palette;
622 #if defined(CONFIG_MPC823)
623 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
624 cpm8xx_t *cp = &(immr->im_cpm);
626 unsigned bpix = NBITS(panel_info.vl_bpix);
628 debug("Logo: width %d height %d colors %d cmap %d\n",
629 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
630 ARRAY_SIZE(bmp_logo_palette));
632 bmap = &bmp_logo_bitmap[0];
633 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
636 /* Leave room for default color map
637 * default case: generic system with no cmap (most likely 16bpp)
638 * cmap was set to the source palette, so no change is done.
639 * This avoids even more ifdefs in the next stanza
641 #if defined(CONFIG_MPC823)
642 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
643 #elif defined(CONFIG_ATMEL_LCD)
644 cmap = (uint *)configuration_get_cmap();
646 cmap = configuration_get_cmap();
652 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
653 ushort colreg = bmp_logo_palette[i];
654 #ifdef CONFIG_ATMEL_LCD
656 #ifdef CONFIG_ATMEL_LCD_BGR555
657 lut_entry = ((colreg & 0x000F) << 11) |
658 ((colreg & 0x00F0) << 2) |
659 ((colreg & 0x0F00) >> 7);
660 #else /* CONFIG_ATMEL_LCD_RGB565 */
661 lut_entry = ((colreg & 0x000F) << 1) |
662 ((colreg & 0x00F0) << 3) |
663 ((colreg & 0x0F00) << 4);
665 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
667 #else /* !CONFIG_ATMEL_LCD */
669 #endif /* CONFIG_ATMEL_LCD */
674 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
675 memcpy(fb, bmap, BMP_LOGO_WIDTH);
676 bmap += BMP_LOGO_WIDTH;
677 fb += panel_info.vl_col;
680 else { /* true color mode */
683 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
684 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
685 col16 = bmp_logo_palette[(bmap[j]-16)];
687 ((col16 & 0x000F) << 1) |
688 ((col16 & 0x00F0) << 3) |
689 ((col16 & 0x0F00) << 4);
691 bmap += BMP_LOGO_WIDTH;
692 fb16 += panel_info.vl_col;
700 static inline void bitmap_plot(int x, int y) {}
701 #endif /* CONFIG_LCD_LOGO */
703 /*----------------------------------------------------------------------*/
704 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
706 * Display the BMP file located at address bmp_image.
710 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
711 #define BMP_ALIGN_CENTER 0x7FFF
713 static void splash_align_axis(int *axis, unsigned long panel_size,
714 unsigned long picture_size)
716 unsigned long panel_picture_delta = panel_size - picture_size;
717 unsigned long axis_alignment;
719 if (*axis == BMP_ALIGN_CENTER)
720 axis_alignment = panel_picture_delta / 2;
722 axis_alignment = panel_picture_delta + *axis + 1;
726 *axis = max(0, (int)axis_alignment);
731 #ifdef CONFIG_LCD_BMP_RLE8
733 #define BMP_RLE8_ESCAPE 0
734 #define BMP_RLE8_EOL 0
735 #define BMP_RLE8_EOBMP 1
736 #define BMP_RLE8_DELTA 2
738 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
742 *(*fbp)++ = cmap[*bmap++];
747 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
750 int cnt_8copy = cnt >> 3;
752 cnt -= cnt_8copy << 3;
753 while (cnt_8copy > 0) {
772 * Do not call this function directly, must be called from lcd_display_bitmap.
774 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
775 int x_off, int y_off)
783 width = get_unaligned_le32(&bmp->header.width);
784 height = get_unaligned_le32(&bmp->header.height);
785 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
791 if (bmap[0] == BMP_RLE8_ESCAPE) {
798 /* 16bpix, 2-byte per pixel, width should *2 */
799 fb -= (width * 2 + lcd_line_length);
809 /* 16bpix, 2-byte per pixel, x should *2 */
810 fb = (uchar *) (lcd_base + (y + y_off - 1)
811 * lcd_line_length + (x + x_off) * 2);
820 if (x + runlen > width)
824 draw_unencoded_bitmap(
839 /* aggregate the same code */
840 while (bmap[0] == 0xff &&
841 bmap[2] != BMP_RLE8_ESCAPE &&
842 bmap[1] == bmap[3]) {
846 if (x + runlen > width)
850 draw_encoded_bitmap((ushort **)&fb,
861 #if defined(CONFIG_MPC823)
862 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
864 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
867 #if defined(CONFIG_BMP_16BPP)
868 #if defined(CONFIG_ATMEL_LCD_BGR555)
869 static inline void fb_put_word(uchar **fb, uchar **from)
871 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
872 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
876 static inline void fb_put_word(uchar **fb, uchar **from)
878 *(*fb)++ = *(*from)++;
879 *(*fb)++ = *(*from)++;
882 #endif /* CONFIG_BMP_16BPP */
884 int lcd_display_bitmap(ulong bmp_image, int x, int y)
887 ushort *cmap_base = NULL;
890 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
893 unsigned long width, height, byte_width;
894 unsigned long pwidth = panel_info.vl_col;
895 unsigned colors, bpix, bmp_bpix;
897 if (!bmp || !(bmp->header.signature[0] == 'B' &&
898 bmp->header.signature[1] == 'M')) {
899 printf("Error: no valid bmp image at %lx\n", bmp_image);
904 width = get_unaligned_le32(&bmp->header.width);
905 height = get_unaligned_le32(&bmp->header.height);
906 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
908 colors = 1 << bmp_bpix;
910 bpix = NBITS(panel_info.vl_bpix);
912 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
913 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
920 * We support displaying 8bpp BMPs on 16bpp LCDs
921 * and displaying 24bpp BMPs on 32bpp LCDs
923 if (bpix != bmp_bpix &&
924 !(bmp_bpix == 8 && bpix == 16) &&
925 !(bmp_bpix == 24 && bpix == 32)) {
926 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
927 bpix, get_unaligned_le16(&bmp->header.bit_count));
931 debug("Display-bmp: %d x %d with %d colors\n",
932 (int)width, (int)height, (int)colors);
935 cmap = configuration_get_cmap();
939 for (i = 0; i < colors; ++i) {
940 bmp_color_table_entry_t cte = bmp->color_table[i];
941 #if !defined(CONFIG_ATMEL_LCD)
943 ( ((cte.red) << 8) & 0xf800) |
944 ( ((cte.green) << 3) & 0x07e0) |
945 ( ((cte.blue) >> 3) & 0x001f) ;
947 #if defined(CONFIG_MPC823)
952 #else /* CONFIG_ATMEL_LCD */
953 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
958 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
960 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
961 splash_align_axis(&x, pwidth, width);
962 splash_align_axis(&y, panel_info.vl_row, height);
963 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
965 if ((x + width) > pwidth)
967 if ((y + height) > panel_info.vl_row)
968 height = panel_info.vl_row - y;
970 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
971 fb = (uchar *)(lcd_base +
972 (y + height - 1) * lcd_line_length + x * bpix / 8);
975 case 1: /* pass through */
977 #ifdef CONFIG_LCD_BMP_RLE8
978 u32 compression = get_unaligned_le32(&bmp->header.compression);
979 if (compression == BMP_BI_RLE8) {
981 /* TODO implement render code for bpix != 16 */
982 printf("Error: only support 16 bpix");
985 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
993 byte_width = width * 2;
995 for (i = 0; i < height; ++i) {
997 for (j = 0; j < width; j++) {
999 FB_PUT_BYTE(fb, bmap);
1001 *(uint16_t *)fb = cmap_base[*(bmap++)];
1002 fb += sizeof(uint16_t) / sizeof(*fb);
1005 bmap += (padded_width - width);
1006 fb -= byte_width + lcd_line_length;
1010 #if defined(CONFIG_BMP_16BPP)
1012 for (i = 0; i < height; ++i) {
1014 for (j = 0; j < width; j++)
1015 fb_put_word(&fb, &bmap);
1017 bmap += (padded_width - width) * 2;
1018 fb -= width * 2 + lcd_line_length;
1021 #endif /* CONFIG_BMP_16BPP */
1022 #if defined(CONFIG_BMP_24BMP)
1024 for (i = 0; i < height; ++i) {
1025 for (j = 0; j < width; j++) {
1026 *(fb++) = *(bmap++);
1027 *(fb++) = *(bmap++);
1028 *(fb++) = *(bmap++);
1031 fb -= lcd_line_length + width * (bpix / 8);
1034 #endif /* CONFIG_BMP_24BMP */
1035 #if defined(CONFIG_BMP_32BPP)
1037 for (i = 0; i < height; ++i) {
1038 for (j = 0; j < width; j++) {
1039 *(fb++) = *(bmap++);
1040 *(fb++) = *(bmap++);
1041 *(fb++) = *(bmap++);
1042 *(fb++) = *(bmap++);
1044 fb -= lcd_line_length + width * (bpix / 8);
1047 #endif /* CONFIG_BMP_32BPP */
1057 static void *lcd_logo(void)
1059 #ifdef CONFIG_SPLASH_SCREEN
1062 static int do_splash = 1;
1064 if (do_splash && (s = getenv("splashimage")) != NULL) {
1068 if (splash_screen_prepare())
1069 return (void *)lcd_base;
1071 addr = simple_strtoul (s, NULL, 16);
1073 splash_get_pos(&x, &y);
1075 if (bmp_display(addr, x, y) == 0)
1076 return (void *)lcd_base;
1078 #endif /* CONFIG_SPLASH_SCREEN */
1082 #ifdef CONFIG_LCD_INFO
1083 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
1084 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
1085 lcd_show_board_info();
1086 #endif /* CONFIG_LCD_INFO */
1088 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1089 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1091 return (void *)lcd_base;
1092 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
1095 #ifdef CONFIG_SPLASHIMAGE_GUARD
1096 static int on_splashimage(const char *name, const char *value, enum env_op op,
1102 if (op == env_op_delete)
1105 addr = simple_strtoul(value, NULL, 16);
1106 /* See README.displaying-bmps */
1107 aligned = (addr % 4 == 2);
1109 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1116 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1119 void lcd_position_cursor(unsigned col, unsigned row)
1121 console_curr_col = min_t(short, col, console_cols - 1);
1122 console_curr_row = min_t(short, row, console_rows - 1);
1125 int lcd_get_pixel_width(void)
1127 return panel_info.vl_col;
1130 int lcd_get_pixel_height(void)
1132 return panel_info.vl_row;
1135 int lcd_get_screen_rows(void)
1137 return console_rows;
1140 int lcd_get_screen_columns(void)
1142 return console_cols;
1145 #if defined(CONFIG_LCD_DT_SIMPLEFB)
1146 static int lcd_dt_simplefb_configure_node(void *blob, int off)
1148 #if LCD_BPP == LCD_COLOR16
1149 return fdt_setup_simplefb_node(blob, off, gd->fb_base,
1150 panel_info.vl_col, panel_info.vl_row,
1151 panel_info.vl_col * 2, "r5g6b5");
1157 int lcd_dt_simplefb_add_node(void *blob)
1159 static const char compat[] = "simple-framebuffer";
1160 static const char disabled[] = "disabled";
1163 off = fdt_add_subnode(blob, 0, "framebuffer");
1167 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
1171 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
1175 return lcd_dt_simplefb_configure_node(blob, off);
1178 int lcd_dt_simplefb_enable_existing_node(void *blob)
1182 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
1186 return lcd_dt_simplefb_configure_node(blob, off);