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)
32 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
33 defined(CONFIG_CPU_MONAHANS)
34 #define CONFIG_CPU_PXA
35 #include <asm/byteorder.h>
38 #if defined(CONFIG_MPC823)
42 #if defined(CONFIG_ATMEL_LCD)
43 #include <atmel_lcdc.h>
46 #if defined(CONFIG_LCD_DT_SIMPLEFB)
50 /************************************************************************/
52 /************************************************************************/
53 #include <video_font.h> /* Get font data, width and height */
55 /************************************************************************/
57 /************************************************************************/
58 #ifdef CONFIG_LCD_LOGO
59 # include <bmp_logo.h> /* Get logo data, width and height */
60 # include <bmp_logo_data.h>
61 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
62 # error Default Color Map overlaps with Logo Color Map
66 #ifndef CONFIG_LCD_ALIGNMENT
67 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
70 /* By default we scroll by a single line */
71 #ifndef CONFIG_CONSOLE_SCROLL_LINES
72 #define CONFIG_CONSOLE_SCROLL_LINES 1
75 /************************************************************************/
76 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
77 /************************************************************************/
78 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
79 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
82 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
85 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
86 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
87 #define CONSOLE_ROW_FIRST lcd_console_address
88 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
89 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
91 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
92 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
94 #if LCD_BPP == LCD_MONOCHROME
95 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
96 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
97 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
98 # define COLOR_MASK(c) (c)
100 # error Unsupported LCD BPP.
103 DECLARE_GLOBAL_DATA_PTR;
105 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
106 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
107 static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
109 static int lcd_init(void *lcdbase);
111 static void *lcd_logo(void);
113 static int lcd_getbgcolor(void);
114 static void lcd_setfgcolor(int color);
115 static void lcd_setbgcolor(int color);
117 static int lcd_color_fg;
118 static int lcd_color_bg;
121 char lcd_is_enabled = 0;
123 static short console_col;
124 static short console_row;
126 static void *lcd_console_address;
127 static void *lcd_base; /* Start of framebuffer memory */
129 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
131 /************************************************************************/
133 /* Flush LCD activity to the caches */
137 * flush_dcache_range() is declared in common.h but it seems that some
138 * architectures do not actually implement it. Is there a way to find
139 * out whether it exists? For now, ARM is safe.
141 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
144 if (lcd_flush_dcache)
145 flush_dcache_range((u32)lcd_base,
146 (u32)(lcd_base + lcd_get_size(&line_length)));
150 void lcd_set_flush_dcache(int flush)
152 lcd_flush_dcache = (flush != 0);
155 /*----------------------------------------------------------------------*/
157 static void console_scrollup(void)
159 const int rows = CONFIG_CONSOLE_SCROLL_LINES;
161 /* Copy up rows ignoring those that will be overwritten */
162 memcpy(CONSOLE_ROW_FIRST,
163 lcd_console_address + CONSOLE_ROW_SIZE * rows,
164 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
166 /* Clear the last rows */
167 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
168 COLOR_MASK(lcd_color_bg),
169 CONSOLE_ROW_SIZE * rows);
175 /*----------------------------------------------------------------------*/
177 static inline void console_back(void)
179 if (--console_col < 0) {
180 console_col = CONSOLE_COLS-1 ;
181 if (--console_row < 0)
185 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
186 console_row * VIDEO_FONT_HEIGHT, ' ');
189 /*----------------------------------------------------------------------*/
191 static inline void console_newline(void)
195 /* Check if we need to scroll the terminal */
196 if (++console_row >= CONSOLE_ROWS)
202 /*----------------------------------------------------------------------*/
204 void lcd_putc(const char c)
206 if (!lcd_is_enabled) {
221 case '\t': /* Tab (8 chars alignment) */
225 if (console_col >= CONSOLE_COLS)
234 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
235 console_row * VIDEO_FONT_HEIGHT, c);
236 if (++console_col >= CONSOLE_COLS)
241 /*----------------------------------------------------------------------*/
243 void lcd_puts(const char *s)
245 if (!lcd_is_enabled) {
257 /*----------------------------------------------------------------------*/
259 void lcd_printf(const char *fmt, ...)
262 char buf[CONFIG_SYS_PBSIZE];
265 vsprintf(buf, fmt, args);
271 /************************************************************************/
272 /* ** Low-Level Graphics Routines */
273 /************************************************************************/
275 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
280 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
281 y += BMP_LOGO_HEIGHT;
284 #if LCD_BPP == LCD_MONOCHROME
285 ushort off = x * (1 << LCD_BPP) % 8;
288 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
290 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
293 #if LCD_BPP == LCD_COLOR16
294 ushort *d = (ushort *)dest;
299 #if LCD_BPP == LCD_MONOCHROME
300 uchar rest = *d & -(1 << (8 - off));
303 for (i = 0; i < count; ++i) {
307 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
309 #if LCD_BPP == LCD_MONOCHROME
310 sym = (COLOR_MASK(lcd_color_fg) & bits) |
311 (COLOR_MASK(lcd_color_bg) & ~bits);
313 *d++ = rest | (sym >> off);
314 rest = sym << (8-off);
315 #elif LCD_BPP == LCD_COLOR8
316 for (c = 0; c < 8; ++c) {
317 *d++ = (bits & 0x80) ?
318 lcd_color_fg : lcd_color_bg;
321 #elif LCD_BPP == LCD_COLOR16
322 for (c = 0; c < 8; ++c) {
323 *d++ = (bits & 0x80) ?
324 lcd_color_fg : lcd_color_bg;
329 #if LCD_BPP == LCD_MONOCHROME
330 *d = rest | (*d & ((1 << (8 - off)) - 1));
335 /*----------------------------------------------------------------------*/
337 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
339 lcd_drawchars(x, y, s, strlen((char *)s));
342 /*----------------------------------------------------------------------*/
344 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
346 lcd_drawchars(x, y, &c, 1);
349 /************************************************************************/
350 /** Small utility to check that you got the colours right */
351 /************************************************************************/
352 #ifdef LCD_TEST_PATTERN
357 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
358 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
359 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
362 static void test_pattern(void)
364 ushort v_max = panel_info.vl_row;
365 ushort h_max = panel_info.vl_col;
366 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
367 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
369 uchar *pix = (uchar *)lcd_base;
371 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
372 h_max, v_max, h_step, v_step);
374 /* WARNING: Code silently assumes 8bit/pixel */
375 for (v = 0; v < v_max; ++v) {
376 uchar iy = v / v_step;
377 for (h = 0; h < h_max; ++h) {
378 uchar ix = N_BLK_HOR * iy + h / h_step;
379 *pix++ = test_colors[ix];
383 #endif /* LCD_TEST_PATTERN */
386 /************************************************************************/
387 /* ** GENERIC Initialization Routines */
388 /************************************************************************/
390 * With most lcd drivers the line length is set up
391 * by calculating it from panel_info parameters. Some
392 * drivers need to calculate the line length differently,
393 * so make the function weak to allow overriding it.
395 __weak int lcd_get_size(int *line_length)
397 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
398 return *line_length * panel_info.vl_row;
401 int drv_lcd_init(void)
403 struct stdio_dev lcddev;
406 lcd_base = (void *) gd->fb_base;
408 lcd_init(lcd_base); /* LCD initialization */
410 /* Device initialization */
411 memset(&lcddev, 0, sizeof(lcddev));
413 strcpy(lcddev.name, "lcd");
414 lcddev.ext = 0; /* No extensions */
415 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
416 lcddev.putc = lcd_putc; /* 'putc' function */
417 lcddev.puts = lcd_puts; /* 'puts' function */
419 rc = stdio_register(&lcddev);
421 return (rc == 0) ? 1 : rc;
424 /*----------------------------------------------------------------------*/
427 #if LCD_BPP == LCD_MONOCHROME
428 /* Setting the palette */
431 #elif LCD_BPP == LCD_COLOR8
432 /* Setting the palette */
433 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
434 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
435 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
436 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
437 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
438 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
439 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
440 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
441 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
444 #ifndef CONFIG_SYS_WHITE_ON_BLACK
445 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
446 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
448 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
449 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
450 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
452 #ifdef LCD_TEST_PATTERN
455 /* set framebuffer to background color */
456 memset((char *)lcd_base,
457 COLOR_MASK(lcd_getbgcolor()),
458 lcd_line_length * panel_info.vl_row);
460 /* Paint the logo and retrieve LCD base address */
461 debug("[LCD] Drawing the logo...\n");
462 lcd_console_address = lcd_logo();
469 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
477 cls, 1, 1, do_lcd_clear,
482 /*----------------------------------------------------------------------*/
484 static int lcd_init(void *lcdbase)
486 /* Initialize the lcd controller */
487 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
489 lcd_ctrl_init(lcdbase);
492 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
493 * the 'lcdbase' argument and uses custom lcd base address
494 * by setting up gd->fb_base. Check for this condition and fixup
495 * 'lcd_base' address.
497 if ((unsigned long)lcdbase != gd->fb_base)
498 lcd_base = (void *)gd->fb_base;
500 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
502 lcd_get_size(&lcd_line_length);
507 /* Initialize the console */
509 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
510 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
512 console_row = 1; /* leave 1 blank line below logo */
519 /************************************************************************/
520 /* ** ROM capable initialization part - needed to reserve FB memory */
521 /************************************************************************/
523 * This is called early in the system initialization to grab memory
524 * for the LCD controller.
525 * Returns new address for monitor, after reserving LCD buffer memory
527 * Note that this is running from ROM, so no write access to global data.
529 ulong lcd_setmem(ulong addr)
534 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
535 panel_info.vl_row, NBITS(panel_info.vl_bpix));
537 size = lcd_get_size(&line_length);
539 /* Round up to nearest full page, or MMU section if defined */
540 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
541 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
543 /* Allocate pages for the frame buffer. */
546 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
552 /*----------------------------------------------------------------------*/
554 static void lcd_setfgcolor(int color)
556 lcd_color_fg = color;
559 /*----------------------------------------------------------------------*/
561 static void lcd_setbgcolor(int color)
563 lcd_color_bg = color;
566 /*----------------------------------------------------------------------*/
568 int lcd_getfgcolor(void)
573 /*----------------------------------------------------------------------*/
575 static int lcd_getbgcolor(void)
580 /************************************************************************/
581 /* ** Chipset depending Bitmap / Logo stuff... */
582 /************************************************************************/
583 static inline ushort *configuration_get_cmap(void)
585 #if defined CONFIG_CPU_PXA
586 struct pxafb_info *fbi = &panel_info.pxa;
587 return (ushort *)fbi->palette;
588 #elif defined(CONFIG_MPC823)
589 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
590 cpm8xx_t *cp = &(immr->im_cpm);
591 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
592 #elif defined(CONFIG_ATMEL_LCD)
593 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
594 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
595 return panel_info.cmap;
596 #elif defined(CONFIG_LCD_LOGO)
597 return bmp_logo_palette;
603 #ifdef CONFIG_LCD_LOGO
604 void bitmap_plot(int x, int y)
606 #ifdef CONFIG_ATMEL_LCD
607 uint *cmap = (uint *)bmp_logo_palette;
609 ushort *cmap = (ushort *)bmp_logo_palette;
615 #if defined(CONFIG_MPC823)
616 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
617 cpm8xx_t *cp = &(immr->im_cpm);
619 unsigned bpix = NBITS(panel_info.vl_bpix);
621 debug("Logo: width %d height %d colors %d cmap %d\n",
622 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
623 ARRAY_SIZE(bmp_logo_palette));
625 bmap = &bmp_logo_bitmap[0];
626 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
629 /* Leave room for default color map
630 * default case: generic system with no cmap (most likely 16bpp)
631 * cmap was set to the source palette, so no change is done.
632 * This avoids even more ifdefs in the next stanza
634 #if defined(CONFIG_MPC823)
635 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
636 #elif defined(CONFIG_ATMEL_LCD)
637 cmap = (uint *)configuration_get_cmap();
639 cmap = configuration_get_cmap();
645 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
646 ushort colreg = bmp_logo_palette[i];
647 #ifdef CONFIG_ATMEL_LCD
649 #ifdef CONFIG_ATMEL_LCD_BGR555
650 lut_entry = ((colreg & 0x000F) << 11) |
651 ((colreg & 0x00F0) << 2) |
652 ((colreg & 0x0F00) >> 7);
653 #else /* CONFIG_ATMEL_LCD_RGB565 */
654 lut_entry = ((colreg & 0x000F) << 1) |
655 ((colreg & 0x00F0) << 3) |
656 ((colreg & 0x0F00) << 4);
658 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
660 #else /* !CONFIG_ATMEL_LCD */
661 #ifdef CONFIG_SYS_INVERT_COLORS
662 *cmap++ = 0xffff - colreg;
666 #endif /* CONFIG_ATMEL_LCD */
671 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
672 memcpy(fb, bmap, BMP_LOGO_WIDTH);
673 bmap += BMP_LOGO_WIDTH;
674 fb += panel_info.vl_col;
677 else { /* true color mode */
680 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
681 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
682 col16 = bmp_logo_palette[(bmap[j]-16)];
684 ((col16 & 0x000F) << 1) |
685 ((col16 & 0x00F0) << 3) |
686 ((col16 & 0x0F00) << 4);
688 bmap += BMP_LOGO_WIDTH;
689 fb16 += panel_info.vl_col;
697 static inline void bitmap_plot(int x, int y) {}
698 #endif /* CONFIG_LCD_LOGO */
700 /*----------------------------------------------------------------------*/
701 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
703 * Display the BMP file located at address bmp_image.
707 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
708 #define BMP_ALIGN_CENTER 0x7FFF
710 static void splash_align_axis(int *axis, unsigned long panel_size,
711 unsigned long picture_size)
713 unsigned long panel_picture_delta = panel_size - picture_size;
714 unsigned long axis_alignment;
716 if (*axis == BMP_ALIGN_CENTER)
717 axis_alignment = panel_picture_delta / 2;
719 axis_alignment = panel_picture_delta + *axis + 1;
723 *axis = max(0, axis_alignment);
728 #ifdef CONFIG_LCD_BMP_RLE8
730 #define BMP_RLE8_ESCAPE 0
731 #define BMP_RLE8_EOL 0
732 #define BMP_RLE8_EOBMP 1
733 #define BMP_RLE8_DELTA 2
735 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
739 *(*fbp)++ = cmap[*bmap++];
744 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
747 int cnt_8copy = cnt >> 3;
749 cnt -= cnt_8copy << 3;
750 while (cnt_8copy > 0) {
769 * Do not call this function directly, must be called from lcd_display_bitmap.
771 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
772 int x_off, int y_off)
780 width = le32_to_cpu(bmp->header.width);
781 height = le32_to_cpu(bmp->header.height);
782 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
788 if (bmap[0] == BMP_RLE8_ESCAPE) {
795 /* 16bpix, 2-byte per pixel, width should *2 */
796 fb -= (width * 2 + lcd_line_length);
806 /* 16bpix, 2-byte per pixel, x should *2 */
807 fb = (uchar *) (lcd_base + (y + y_off - 1)
808 * lcd_line_length + (x + x_off) * 2);
817 if (x + runlen > width)
821 draw_unencoded_bitmap(
836 /* aggregate the same code */
837 while (bmap[0] == 0xff &&
838 bmap[2] != BMP_RLE8_ESCAPE &&
839 bmap[1] == bmap[3]) {
843 if (x + runlen > width)
847 draw_encoded_bitmap((ushort **)&fb,
858 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
859 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
861 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
864 #if defined(CONFIG_BMP_16BPP)
865 #if defined(CONFIG_ATMEL_LCD_BGR555)
866 static inline void fb_put_word(uchar **fb, uchar **from)
868 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
869 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
873 static inline void fb_put_word(uchar **fb, uchar **from)
875 *(*fb)++ = *(*from)++;
876 *(*fb)++ = *(*from)++;
879 #endif /* CONFIG_BMP_16BPP */
881 int lcd_display_bitmap(ulong bmp_image, int x, int y)
883 #if !defined(CONFIG_MCC200)
886 ushort *cmap_base = NULL;
889 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
892 unsigned long width, height, byte_width;
893 unsigned long pwidth = panel_info.vl_col;
894 unsigned colors, bpix, bmp_bpix;
896 if (!bmp || !(bmp->header.signature[0] == 'B' &&
897 bmp->header.signature[1] == 'M')) {
898 printf("Error: no valid bmp image at %lx\n", bmp_image);
903 width = le32_to_cpu(bmp->header.width);
904 height = le32_to_cpu(bmp->header.height);
905 bmp_bpix = le16_to_cpu(bmp->header.bit_count);
906 colors = 1 << bmp_bpix;
908 bpix = NBITS(panel_info.vl_bpix);
910 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
911 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
917 /* We support displaying 8bpp BMPs on 16bpp LCDs */
918 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
919 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
921 le16_to_cpu(bmp->header.bit_count));
926 debug("Display-bmp: %d x %d with %d colors\n",
927 (int)width, (int)height, (int)colors);
929 #if !defined(CONFIG_MCC200)
930 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
932 cmap = configuration_get_cmap();
936 for (i = 0; i < colors; ++i) {
937 bmp_color_table_entry_t cte = bmp->color_table[i];
938 #if !defined(CONFIG_ATMEL_LCD)
940 ( ((cte.red) << 8) & 0xf800) |
941 ( ((cte.green) << 3) & 0x07e0) |
942 ( ((cte.blue) >> 3) & 0x001f) ;
943 #ifdef CONFIG_SYS_INVERT_COLORS
944 *cmap = 0xffff - colreg;
948 #if defined(CONFIG_MPC823)
953 #else /* CONFIG_ATMEL_LCD */
954 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
961 * BMP format for Monochrome assumes that the state of a
962 * pixel is described on a per Bit basis, not per Byte.
963 * So, in case of Monochrome BMP we should align widths
964 * on a byte boundary and convert them from Bit to Byte
966 * Probably, PXA250 and MPC823 process 1bpp BMP images in
967 * their own ways, so make the converting to be MCC200
970 #if defined(CONFIG_MCC200)
972 width = ((width + 7) & ~7) >> 3;
973 x = ((x + 7) & ~7) >> 3;
974 pwidth= ((pwidth + 7) & ~7) >> 3;
978 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
980 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
981 splash_align_axis(&x, pwidth, width);
982 splash_align_axis(&y, panel_info.vl_row, height);
983 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
985 if ((x + width) > pwidth)
987 if ((y + height) > panel_info.vl_row)
988 height = panel_info.vl_row - y;
990 bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset);
991 fb = (uchar *) (lcd_base +
992 (y + height - 1) * lcd_line_length + x * bpix / 8);
995 case 1: /* pass through */
997 #ifdef CONFIG_LCD_BMP_RLE8
998 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) {
1000 /* TODO implement render code for bpix != 16 */
1001 printf("Error: only support 16 bpix");
1004 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
1012 byte_width = width * 2;
1014 for (i = 0; i < height; ++i) {
1016 for (j = 0; j < width; j++) {
1018 FB_PUT_BYTE(fb, bmap);
1020 *(uint16_t *)fb = cmap_base[*(bmap++)];
1021 fb += sizeof(uint16_t) / sizeof(*fb);
1024 bmap += (padded_width - width);
1025 fb -= byte_width + lcd_line_length;
1029 #if defined(CONFIG_BMP_16BPP)
1031 for (i = 0; i < height; ++i) {
1033 for (j = 0; j < width; j++)
1034 fb_put_word(&fb, &bmap);
1036 bmap += (padded_width - width) * 2;
1037 fb -= width * 2 + lcd_line_length;
1040 #endif /* CONFIG_BMP_16BPP */
1042 #if defined(CONFIG_BMP_32BPP)
1044 for (i = 0; i < height; ++i) {
1045 for (j = 0; j < width; j++) {
1046 *(fb++) = *(bmap++);
1047 *(fb++) = *(bmap++);
1048 *(fb++) = *(bmap++);
1049 *(fb++) = *(bmap++);
1051 fb -= lcd_line_length + width * (bpix / 8);
1054 #endif /* CONFIG_BMP_32BPP */
1064 static void *lcd_logo(void)
1066 #ifdef CONFIG_SPLASH_SCREEN
1069 static int do_splash = 1;
1071 if (do_splash && (s = getenv("splashimage")) != NULL) {
1075 if (splash_screen_prepare())
1076 return (void *)lcd_base;
1078 addr = simple_strtoul (s, NULL, 16);
1080 splash_get_pos(&x, &y);
1082 if (bmp_display(addr, x, y) == 0)
1083 return (void *)lcd_base;
1085 #endif /* CONFIG_SPLASH_SCREEN */
1089 #ifdef CONFIG_LCD_INFO
1090 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1091 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1092 lcd_show_board_info();
1093 #endif /* CONFIG_LCD_INFO */
1095 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1096 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1098 return (void *)lcd_base;
1099 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
1102 #ifdef CONFIG_SPLASHIMAGE_GUARD
1103 static int on_splashimage(const char *name, const char *value, enum env_op op,
1109 if (op == env_op_delete)
1112 addr = simple_strtoul(value, NULL, 16);
1113 /* See README.displaying-bmps */
1114 aligned = (addr % 4 == 2);
1116 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1123 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1126 void lcd_position_cursor(unsigned col, unsigned row)
1128 console_col = min(col, CONSOLE_COLS - 1);
1129 console_row = min(row, CONSOLE_ROWS - 1);
1132 int lcd_get_pixel_width(void)
1134 return panel_info.vl_col;
1137 int lcd_get_pixel_height(void)
1139 return panel_info.vl_row;
1142 int lcd_get_screen_rows(void)
1144 return CONSOLE_ROWS;
1147 int lcd_get_screen_columns(void)
1149 return CONSOLE_COLS;
1152 #if defined(CONFIG_LCD_DT_SIMPLEFB)
1153 static int lcd_dt_simplefb_configure_node(void *blob, int off)
1158 static const char format[] =
1159 #if LCD_BPP == LCD_COLOR16
1168 stride = panel_info.vl_col * 2;
1170 cells[0] = cpu_to_fdt32(gd->fb_base);
1171 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
1172 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
1176 cells[0] = cpu_to_fdt32(panel_info.vl_col);
1177 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
1181 cells[0] = cpu_to_fdt32(panel_info.vl_row);
1182 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
1186 cells[0] = cpu_to_fdt32(stride);
1187 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
1191 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
1195 ret = fdt_delprop(blob, off, "status");
1202 int lcd_dt_simplefb_add_node(void *blob)
1204 static const char compat[] = "simple-framebuffer";
1205 static const char disabled[] = "disabled";
1208 off = fdt_add_subnode(blob, 0, "framebuffer");
1212 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
1216 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
1220 return lcd_dt_simplefb_configure_node(blob, off);
1223 int lcd_dt_simplefb_enable_existing_node(void *blob)
1227 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
1231 return lcd_dt_simplefb_configure_node(blob, off);