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 */
54 #include <video_font_data.h>
56 /************************************************************************/
58 /************************************************************************/
59 #ifdef CONFIG_LCD_LOGO
60 # include <bmp_logo.h> /* Get logo data, width and height */
61 # include <bmp_logo_data.h>
62 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP < LCD_COLOR16)
63 # error Default Color Map overlaps with Logo Color Map
67 #ifndef CONFIG_LCD_ALIGNMENT
68 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
71 /* By default we scroll by a single line */
72 #ifndef CONFIG_CONSOLE_SCROLL_LINES
73 #define CONFIG_CONSOLE_SCROLL_LINES 1
76 /************************************************************************/
77 /* ** CONSOLE DEFINITIONS & FUNCTIONS */
78 /************************************************************************/
79 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
80 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
83 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT)
86 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH)
87 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length)
88 #define CONSOLE_ROW_FIRST lcd_console_address
89 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE)
90 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \
92 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
93 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
95 #if LCD_BPP == LCD_MONOCHROME
96 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \
97 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
98 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || (LCD_BPP == LCD_COLOR24)
99 # define COLOR_MASK(c) (c)
101 # error Unsupported LCD BPP.
104 DECLARE_GLOBAL_DATA_PTR;
106 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
107 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
108 static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
110 static int lcd_init(void *lcdbase);
112 static void *lcd_logo(void);
114 static int lcd_getbgcolor(void);
115 static void lcd_setfgcolor(int color);
116 static void lcd_setbgcolor(int color);
118 static int lcd_color_fg;
119 static int lcd_color_bg;
122 char lcd_is_enabled = 0;
124 static short console_col;
125 static short console_row;
127 static void *lcd_console_address;
128 static void *lcd_base; /* Start of framebuffer memory */
130 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
132 /************************************************************************/
134 /* Flush LCD activity to the caches */
138 * flush_dcache_range() is declared in common.h but it seems that some
139 * architectures do not actually implement it. Is there a way to find
140 * out whether it exists? For now, ARM is safe.
142 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
145 if (lcd_flush_dcache)
146 flush_dcache_range((u32)lcd_base,
147 (u32)(lcd_base + lcd_get_size(&line_length)));
151 void lcd_set_flush_dcache(int flush)
153 lcd_flush_dcache = (flush != 0);
156 /*----------------------------------------------------------------------*/
158 static void console_scrollup(void)
160 const int rows = CONFIG_CONSOLE_SCROLL_LINES;
162 /* Copy up rows ignoring those that will be overwritten */
163 memcpy(CONSOLE_ROW_FIRST,
164 lcd_console_address + CONSOLE_ROW_SIZE * rows,
165 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
167 /* Clear the last rows */
168 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
169 COLOR_MASK(lcd_color_bg),
170 CONSOLE_ROW_SIZE * rows);
176 /*----------------------------------------------------------------------*/
178 static inline void console_back(void)
180 if (--console_col < 0) {
181 console_col = CONSOLE_COLS-1 ;
182 if (--console_row < 0)
186 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
187 console_row * VIDEO_FONT_HEIGHT, ' ');
190 /*----------------------------------------------------------------------*/
192 static inline void console_newline(void)
196 /* Check if we need to scroll the terminal */
197 if (++console_row >= CONSOLE_ROWS)
203 /*----------------------------------------------------------------------*/
205 void lcd_putc(const char c)
207 if (!lcd_is_enabled) {
222 case '\t': /* Tab (8 chars alignment) */
226 if (console_col >= CONSOLE_COLS)
235 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
236 console_row * VIDEO_FONT_HEIGHT, c);
237 if (++console_col >= CONSOLE_COLS)
242 /*----------------------------------------------------------------------*/
244 void lcd_puts(const char *s)
246 if (!lcd_is_enabled) {
258 /*----------------------------------------------------------------------*/
260 void lcd_printf(const char *fmt, ...)
263 char buf[CONFIG_SYS_PBSIZE];
266 vsprintf(buf, fmt, args);
272 /************************************************************************/
273 /* ** Low-Level Graphics Routines */
274 /************************************************************************/
276 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
281 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
282 y += BMP_LOGO_HEIGHT;
285 #if LCD_BPP == LCD_MONOCHROME
286 ushort off = x * (1 << LCD_BPP) % 8;
289 dest = lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8;
291 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
294 #if LCD_BPP == LCD_COLOR24
296 #elif LCD_BPP == LCD_COLOR16
302 #if LCD_BPP == LCD_MONOCHROME
303 uchar rest = *d & -(1 << (8 - off));
306 for (i = 0; i < count; ++i) {
310 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
312 #if LCD_BPP == LCD_MONOCHROME
313 sym = (COLOR_MASK(lcd_color_fg) & bits) |
314 (COLOR_MASK(lcd_color_bg) & ~bits);
316 *d++ = rest | (sym >> off);
317 rest = sym << (8-off);
319 for (c = 0; c < 8; ++c) {
320 *d++ = (bits & 0x80) ?
321 lcd_color_fg : lcd_color_bg;
326 #if LCD_BPP == LCD_MONOCHROME
327 *d = rest | (*d & ((1 << (8 - off)) - 1));
332 /*----------------------------------------------------------------------*/
334 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
336 lcd_drawchars(x, y, s, strlen((char *)s));
339 /*----------------------------------------------------------------------*/
341 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
343 lcd_drawchars(x, y, &c, 1);
346 /************************************************************************/
347 /** Small utility to check that you got the colours right */
348 /************************************************************************/
349 #ifdef LCD_TEST_PATTERN
354 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
355 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
356 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
359 #if LCD_BPP == LCD_COLOR8
361 #elif LCD_BPP == LCD_COLOR16
362 typedef ushort pix_t;
363 #elif LCD_BPP == LCD_COLOR24
366 #error Unsupported pixelformat
369 static void test_pattern(void)
371 ushort v_max = panel_info.vl_row;
372 ushort h_max = panel_info.vl_col;
373 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
374 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
376 pix_t *pix = lcd_base;
378 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
379 h_max, v_max, h_step, v_step);
381 /* WARNING: Code silently assumes 8bit/pixel */
382 for (v = 0; v < v_max; ++v) {
383 uchar iy = v / v_step;
384 for (h = 0; h < h_max; ++h) {
385 uchar ix = N_BLK_HOR * iy + h / h_step;
386 *pix++ = test_colors[ix];
390 #endif /* LCD_TEST_PATTERN */
393 /************************************************************************/
394 /* ** GENERIC Initialization Routines */
395 /************************************************************************/
397 int lcd_get_size(int *line_length)
399 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
400 return *line_length * panel_info.vl_row;
403 int drv_lcd_init(void)
405 struct stdio_dev lcddev;
408 lcd_base = (void *)gd->fb_base;
410 lcd_init(lcd_base); /* LCD initialization */
412 /* Device initialization */
413 memset(&lcddev, 0, sizeof(lcddev));
415 strcpy(lcddev.name, "lcd");
416 lcddev.ext = 0; /* No extensions */
417 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
418 lcddev.putc = lcd_putc; /* 'putc' function */
419 lcddev.puts = lcd_puts; /* 'puts' function */
421 rc = stdio_register(&lcddev);
423 return (rc == 0) ? 1 : rc;
426 /*----------------------------------------------------------------------*/
429 #if LCD_BPP == LCD_MONOCHROME
430 /* Setting the palette */
433 #elif LCD_BPP == LCD_COLOR8
434 /* Setting the palette */
435 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
436 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
437 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
438 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
439 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
440 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
441 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
442 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
443 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
446 #ifndef CONFIG_SYS_WHITE_ON_BLACK
447 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
448 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
450 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
451 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
452 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
454 #ifdef LCD_TEST_PATTERN
457 /* set framebuffer to background color */
458 memset((char *)lcd_base,
459 COLOR_MASK(lcd_getbgcolor()),
460 lcd_line_length * panel_info.vl_row);
462 /* Paint the logo and retrieve LCD base address */
463 debug("[LCD] Drawing the logo @ %p...\n", lcd_base);
464 lcd_console_address = lcd_logo();
471 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
479 cls, 1, 1, do_lcd_clear,
484 /*----------------------------------------------------------------------*/
486 static int lcd_init(void *lcdbase)
488 /* Initialize the lcd controller */
489 debug("[LCD] Initializing %ux%ux%u LCD framebuffer at %p\n",
490 panel_info.vl_col, panel_info.vl_row, NBITS(panel_info.vl_bpix),
493 lcd_ctrl_init(lcdbase);
496 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
497 * the 'lcdbase' argument and uses custom lcd base address
498 * by setting up gd->fb_base. Check for this condition and fixup
499 * 'lcd_base' address.
501 if ((unsigned long)lcdbase != gd->fb_base)
502 lcd_base = (void *)gd->fb_base;
504 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
506 lcd_get_size(&lcd_line_length);
507 lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
512 /* Initialize the console */
514 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
515 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
517 console_row = 1; /* leave 1 blank line below logo */
524 /************************************************************************/
525 /* ** ROM capable initialization part - needed to reserve FB memory */
526 /************************************************************************/
528 * This is called early in the system initialization to grab memory
529 * for the LCD controller.
530 * Returns new address for monitor, after reserving LCD buffer memory
532 * Note that this is running from ROM, so no write access to global data.
534 ulong lcd_setmem(ulong addr)
539 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
540 panel_info.vl_row, NBITS(panel_info.vl_bpix));
542 size = lcd_get_size(&line_length);
544 /* Round up to nearest full page, or MMU section if defined */
545 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
546 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
548 /* Allocate pages for the frame buffer. */
551 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
557 /*----------------------------------------------------------------------*/
559 static void lcd_setfgcolor(int color)
561 lcd_color_fg = color;
564 /*----------------------------------------------------------------------*/
566 static void lcd_setbgcolor(int color)
568 lcd_color_bg = color;
571 /*----------------------------------------------------------------------*/
573 int lcd_getfgcolor(void)
578 /*----------------------------------------------------------------------*/
580 static inline int lcd_getbgcolor(void)
585 /************************************************************************/
586 /* ** Chipset depending Bitmap / Logo stuff... */
587 /************************************************************************/
588 static inline ushort *configuration_get_cmap(void)
590 #if defined CONFIG_CPU_PXA
591 struct pxafb_info *fbi = &panel_info.pxa;
592 return (ushort *)fbi->palette;
593 #elif defined(CONFIG_MPC823)
594 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
595 cpm8xx_t *cp = &(immr->im_cpm);
596 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
597 #elif defined(CONFIG_ATMEL_LCD)
598 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
599 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
600 return panel_info.cmap;
601 #elif defined(CONFIG_LCD_LOGO)
602 return bmp_logo_palette;
608 #ifdef CONFIG_LCD_LOGO
609 void bitmap_plot(int x, int y)
611 #ifdef CONFIG_ATMEL_LCD
612 uint *cmap = (uint *)bmp_logo_palette;
614 ushort *cmap = (ushort *)bmp_logo_palette;
620 #if defined(CONFIG_MPC823)
621 immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
622 cpm8xx_t *cp = &(immr->im_cpm);
624 unsigned bpix = NBITS(panel_info.vl_bpix);
626 debug("Logo: width %d height %d colors %d cmap %d\n",
627 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
628 ARRAY_SIZE(bmp_logo_palette));
630 bmap = &bmp_logo_bitmap[0];
631 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
634 /* Leave room for default color map
635 * default case: generic system with no cmap (most likely 16bpp)
636 * cmap was set to the source palette, so no change is done.
637 * This avoids even more ifdefs in the next stanza
639 #if defined(CONFIG_MPC823)
640 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
641 #elif defined(CONFIG_ATMEL_LCD)
642 cmap = (uint *)configuration_get_cmap();
644 cmap = configuration_get_cmap();
650 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
651 ushort colreg = bmp_logo_palette[i];
652 #ifdef CONFIG_ATMEL_LCD
654 #ifdef CONFIG_ATMEL_LCD_BGR555
655 lut_entry = ((colreg & 0x000F) << 11) |
656 ((colreg & 0x00F0) << 2) |
657 ((colreg & 0x0F00) >> 7);
658 #else /* CONFIG_ATMEL_LCD_RGB565 */
659 lut_entry = ((colreg & 0x000F) << 1) |
660 ((colreg & 0x00F0) << 3) |
661 ((colreg & 0x0F00) << 4);
663 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
665 #else /* !CONFIG_ATMEL_LCD */
666 #ifdef CONFIG_SYS_INVERT_COLORS
667 *cmap++ = 0xffff - colreg;
671 #endif /* CONFIG_ATMEL_LCD */
676 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
677 memcpy(fb, bmap, BMP_LOGO_WIDTH);
678 bmap += BMP_LOGO_WIDTH;
679 fb += panel_info.vl_col;
681 } else if (NBITS(panel_info.vl_bpix) == 16) {
684 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
685 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
686 col16 = bmp_logo_palette[(bmap[j]-16)];
688 ((col16 & 0x000F) << 1) |
689 ((col16 & 0x00F0) << 3) |
690 ((col16 & 0x0F00) << 4);
692 bmap += BMP_LOGO_WIDTH;
693 fb16 += panel_info.vl_col;
695 } else { /* true color mode */
697 u32 *fb32 = lcd_base + y * lcd_line_length + x;
699 for (i = 0; i < BMP_LOGO_HEIGHT; i++) {
700 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
701 col16 = bmp_logo_palette[bmap[j] - 16];
703 ((col16 & 0x000F) << 4) |
704 ((col16 & 0x00F0) << 8) |
705 ((col16 & 0x0F00) << 12);
707 bmap += BMP_LOGO_WIDTH;
708 fb32 += panel_info.vl_col;
716 static inline void bitmap_plot(int x, int y) {}
717 #endif /* CONFIG_LCD_LOGO */
719 /*----------------------------------------------------------------------*/
720 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
722 * Display the BMP file located at address bmp_image.
726 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
727 #define BMP_ALIGN_CENTER 0x7FFF
729 static void splash_align_axis(int *axis, unsigned long panel_size,
730 unsigned long picture_size)
732 unsigned long panel_picture_delta = panel_size - picture_size;
733 unsigned long axis_alignment;
735 if (*axis == BMP_ALIGN_CENTER)
736 axis_alignment = panel_picture_delta / 2;
738 axis_alignment = panel_picture_delta + *axis + 1;
742 *axis = max(0, axis_alignment);
747 #ifdef CONFIG_LCD_BMP_RLE8
749 #define BMP_RLE8_ESCAPE 0
750 #define BMP_RLE8_EOL 0
751 #define BMP_RLE8_EOBMP 1
752 #define BMP_RLE8_DELTA 2
754 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
758 *(*fbp)++ = cmap[*bmap++];
763 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
766 int cnt_8copy = cnt >> 3;
768 cnt -= cnt_8copy << 3;
769 while (cnt_8copy > 0) {
788 * Do not call this function directly, must be called from lcd_display_bitmap.
790 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
791 int x_off, int y_off)
799 width = le32_to_cpu(bmp->header.width);
800 height = le32_to_cpu(bmp->header.height);
801 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
807 if (bmap[0] == BMP_RLE8_ESCAPE) {
814 /* 16bpix, 2-byte per pixel, width should *2 */
815 fb -= (width * 2 + lcd_line_length);
825 /* 16bpix, 2-byte per pixel, x should *2 */
826 fb = (uchar *) (lcd_base + (y + y_off - 1)
827 * lcd_line_length + (x + x_off) * 2);
836 if (x + runlen > width)
840 draw_unencoded_bitmap(
855 /* aggregate the same code */
856 while (bmap[0] == 0xff &&
857 bmap[2] != BMP_RLE8_ESCAPE &&
858 bmap[1] == bmap[3]) {
862 if (x + runlen > width)
866 draw_encoded_bitmap((ushort **)&fb,
877 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
878 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
880 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
883 #if defined(CONFIG_BMP_16BPP)
884 #if defined(CONFIG_ATMEL_LCD_BGR555)
885 static inline void fb_put_word(uchar **fb, uchar **from)
887 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
888 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
892 static inline void fb_put_word(uchar **fb, uchar **from)
894 *(*fb)++ = *(*from)++;
895 *(*fb)++ = *(*from)++;
898 #endif /* CONFIG_BMP_16BPP */
900 int lcd_display_bitmap(ulong bmp_image, int x, int y)
902 #if !defined(CONFIG_MCC200)
905 ushort *cmap_base = NULL;
908 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
911 unsigned long width, height;
912 unsigned long pwidth = panel_info.vl_col;
913 unsigned long long colors;
914 unsigned bpix, bmp_bpix;
916 if (!bmp || !(bmp->header.signature[0] == 'B' &&
917 bmp->header.signature[1] == 'M')) {
918 printf("Error: no valid bmp image at %lx\n", bmp_image);
923 width = le32_to_cpu(bmp->header.width);
924 height = le32_to_cpu(bmp->header.height);
925 bmp_bpix = le16_to_cpu(bmp->header.bit_count);
926 colors = 1ULL << bmp_bpix;
928 bpix = NBITS(panel_info.vl_bpix);
930 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
931 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
937 /* We support displaying 8bpp BMPs on 16bpp or 32bpp LCDs */
938 if (bpix != bmp_bpix && (bmp_bpix != 8 || (bpix != 16 && bpix != 32))) {
939 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
941 le16_to_cpu(bmp->header.bit_count));
946 debug("Display-bmp: %lu x %lu with %llu colors\n",
947 width, height, colors);
949 #if !defined(CONFIG_MCC200)
950 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
952 cmap = configuration_get_cmap();
956 for (i = 0; i < colors; ++i) {
957 bmp_color_table_entry_t cte = bmp->color_table[i];
958 #if !defined(CONFIG_ATMEL_LCD)
960 ( ((cte.red) << 8) & 0xf800) |
961 ( ((cte.green) << 3) & 0x07e0) |
962 ( ((cte.blue) >> 3) & 0x001f) ;
963 #ifdef CONFIG_SYS_INVERT_COLORS
964 *cmap = 0xffff - colreg;
968 #if defined(CONFIG_MPC823)
973 #else /* CONFIG_ATMEL_LCD */
974 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
981 * BMP format for Monochrome assumes that the state of a
982 * pixel is described on a per Bit basis, not per Byte.
983 * So, in case of Monochrome BMP we should align widths
984 * on a byte boundary and convert them from Bit to Byte
986 * Probably, PXA250 and MPC823 process 1bpp BMP images in
987 * their own ways, so make the converting to be MCC200
990 #if defined(CONFIG_MCC200)
992 width = ALIGN(width, 8) >> 3;
993 x = ALIGN(x, 8) >> 3;
994 pwidth= ALIGN(pwidth, 8) >> 3;
998 padded_width = ALIGN(width, 4);
1000 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1001 splash_align_axis(&x, pwidth, width);
1002 splash_align_axis(&y, panel_info.vl_row, height);
1003 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1004 bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
1006 if ((x + width) > pwidth)
1007 width = max(pwidth - x, pwidth);
1008 if ((y + height) > panel_info.vl_row) {
1009 height = panel_info.vl_row - y;
1010 bmap += (panel_info.vl_row - y) * padded_width;
1013 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
1014 fb = (uchar *)(lcd_base +
1015 (y + height - 1) * lcd_line_length + x * bpix / 8);
1018 case 1: /* pass through */
1020 #ifdef CONFIG_LCD_BMP_RLE8
1021 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) {
1023 /* TODO implement render code for bpix != 16 */
1024 printf("Error: only support 16 bpix");
1027 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
1032 for (i = 0; i < height; ++i) {
1034 for (j = 0; j < width; j++) {
1039 fb[0] = bmp->color_table[i].blue;
1040 fb[1] = bmp->color_table[i].green;
1041 fb[2] = bmp->color_table[i].red;
1042 fb += sizeof(uint32_t) / sizeof(*fb);
1043 } else if (bpix == 16) {
1044 *(uint16_t *)fb = cmap_base[*(bmap++)];
1045 fb += sizeof(uint16_t) / sizeof(*fb);
1047 FB_PUT_BYTE(fb, bmap);
1050 bmap += padded_width - width;
1051 fb -= width + lcd_line_length;
1055 #if defined(CONFIG_BMP_16BPP)
1057 for (i = 0; i < height; ++i) {
1059 for (j = 0; j < width; j++)
1060 fb_put_word(&fb, &bmap);
1062 bmap += (padded_width - width) * 2;
1063 fb -= width * 2 + lcd_line_length;
1066 #endif /* CONFIG_BMP_16BPP */
1068 for (i = 0; i < height; ++i) {
1070 for (j = 0; j < width; j++) {
1071 fb[3] = *bmap++; /* T */
1072 fb[0] = *bmap++; /* B */
1073 fb[1] = *bmap++; /* G */
1074 fb[2] = *bmap++; /* R */
1077 fb -= lcd_line_length + width * (bpix / 8);
1086 static void *lcd_logo(void)
1088 #ifdef CONFIG_SPLASH_SCREEN
1091 static int do_splash = 1;
1093 if (do_splash && (s = getenv("splashimage")) != NULL) {
1099 if (splash_screen_prepare())
1100 return (void *)lcd_base;
1102 addr = simple_strtoul (s, &end, 16);
1103 if (addr == 0 || *end != '\0')
1106 splash_get_pos(&x, &y);
1108 if (bmp_display(addr, x, y) == 0)
1109 return (void *)lcd_base;
1111 #endif /* CONFIG_SPLASH_SCREEN */
1115 #ifdef CONFIG_LCD_INFO
1116 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1117 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1118 lcd_show_board_info();
1119 #endif /* CONFIG_LCD_INFO */
1121 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1122 return lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
1125 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
1128 #ifdef CONFIG_SPLASHIMAGE_GUARD
1129 static int on_splashimage(const char *name, const char *value, enum env_op op,
1135 if (op == env_op_delete)
1138 addr = simple_strtoul(value, NULL, 16);
1139 /* See README.displaying-bmps */
1140 aligned = (addr % 4 == 2);
1142 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1149 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1152 void lcd_position_cursor(unsigned col, unsigned row)
1154 console_col = min(col, CONSOLE_COLS - 1);
1155 console_row = min(row, CONSOLE_ROWS - 1);
1158 int lcd_get_pixel_width(void)
1160 return panel_info.vl_col;
1163 int lcd_get_pixel_height(void)
1165 return panel_info.vl_row;
1168 int lcd_get_screen_rows(void)
1170 return CONSOLE_ROWS;
1173 int lcd_get_screen_columns(void)
1175 return CONSOLE_COLS;
1178 #if defined(CONFIG_LCD_DT_SIMPLEFB)
1179 static int lcd_dt_simplefb_configure_node(void *blob, int off)
1184 static const char format[] =
1185 #if LCD_BPP == LCD_COLOR16
1194 stride = panel_info.vl_col * 2;
1196 cells[0] = cpu_to_fdt32(gd->fb_base);
1197 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
1198 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
1202 cells[0] = cpu_to_fdt32(panel_info.vl_col);
1203 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
1207 cells[0] = cpu_to_fdt32(panel_info.vl_row);
1208 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
1212 cells[0] = cpu_to_fdt32(stride);
1213 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
1217 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
1221 ret = fdt_delprop(blob, off, "status");
1228 int lcd_dt_simplefb_add_node(void *blob)
1230 static const char compat[] = "simple-framebuffer";
1231 static const char disabled[] = "disabled";
1234 off = fdt_add_subnode(blob, 0, "framebuffer");
1238 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
1242 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
1246 return lcd_dt_simplefb_configure_node(blob, off);
1249 int lcd_dt_simplefb_enable_existing_node(void *blob)
1253 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
1257 return lcd_dt_simplefb_configure_node(blob, off);