2 * Common LCD routines for supported CPUs
4 * (C) Copyright 2001-2002
5 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 /************************************************************************/
28 /************************************************************************/
37 #include <env_callback.h>
38 #include <linux/types.h>
39 #include <stdio_dev.h>
40 #if defined(CONFIG_POST)
46 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
47 defined(CONFIG_CPU_MONAHANS)
48 #define CONFIG_CPU_PXA
49 #include <asm/byteorder.h>
52 #if defined(CONFIG_MPC823)
56 #if defined(CONFIG_ATMEL_LCD)
57 #include <atmel_lcdc.h>
60 /************************************************************************/
62 /************************************************************************/
63 #include <video_font.h> /* Get font data, width and height */
64 #include <video_font_data.h>
66 /************************************************************************/
68 /************************************************************************/
69 #ifdef CONFIG_LCD_LOGO
70 # include <bmp_logo.h> /* Get logo data, width and height */
71 # include <bmp_logo_data.h>
72 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
73 # error Default Color Map overlaps with Logo Color Map
77 #ifndef CONFIG_LCD_ALIGNMENT
78 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
81 /* By default we scroll by a single line */
82 #ifndef CONFIG_CONSOLE_SCROLL_LINES
83 #define CONFIG_CONSOLE_SCROLL_LINES 1
86 DECLARE_GLOBAL_DATA_PTR;
88 ulong lcd_setmem (ulong addr);
90 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
91 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
92 static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
94 static int lcd_init(void *lcdbase);
96 static void *lcd_logo (void);
98 static int lcd_getbgcolor(void);
99 static void lcd_setfgcolor(int color);
100 static void lcd_setbgcolor(int color);
102 static int lcd_color_fg;
103 static int lcd_color_bg;
106 char lcd_is_enabled = 0;
108 static short console_col;
109 static short console_row;
111 static void *lcd_console_address;
113 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
116 #ifdef NOT_USED_SO_FAR
117 static void lcd_getcolreg(ushort regno,
118 ushort *red, ushort *green, ushort *blue);
119 static int lcd_getfgcolor(void);
120 #endif /* NOT_USED_SO_FAR */
122 /************************************************************************/
124 /* Flush LCD activity to the caches */
128 * flush_dcache_range() is declared in common.h but it seems that some
129 * architectures do not actually implement it. Is there a way to find
130 * out whether it exists? For now, ARM is safe.
132 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
135 if (lcd_flush_dcache)
136 flush_dcache_range((u32)lcd_base,
137 (u32)(lcd_base + lcd_get_size(&line_length)));
141 void lcd_set_flush_dcache(int flush)
143 lcd_flush_dcache = (flush != 0);
146 /*----------------------------------------------------------------------*/
148 static void console_scrollup(void)
150 const int rows = CONFIG_CONSOLE_SCROLL_LINES;
152 /* Copy up rows ignoring those that will be overwritten */
153 memcpy(CONSOLE_ROW_FIRST,
154 lcd_console_address + CONSOLE_ROW_SIZE * rows,
155 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
157 /* Clear the last rows */
158 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
159 COLOR_MASK(lcd_color_bg),
160 CONSOLE_ROW_SIZE * rows);
166 /*----------------------------------------------------------------------*/
168 static inline void console_back(void)
170 if (--console_col < 0) {
171 console_col = CONSOLE_COLS-1 ;
172 if (--console_row < 0) {
177 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
178 console_row * VIDEO_FONT_HEIGHT, ' ');
181 /*----------------------------------------------------------------------*/
183 static inline void console_newline(void)
188 /* Check if we need to scroll the terminal */
189 if (console_row >= CONSOLE_ROWS) {
190 /* Scroll everything up */
197 /*----------------------------------------------------------------------*/
199 void lcd_putc(const char c)
201 if (!lcd_is_enabled) {
216 case '\t': /* Tab (8 chars alignment) */
220 if (console_col >= CONSOLE_COLS)
229 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
230 console_row * VIDEO_FONT_HEIGHT, c);
231 if (++console_col >= CONSOLE_COLS)
236 /*----------------------------------------------------------------------*/
238 void lcd_puts(const char *s)
240 if (!lcd_is_enabled) {
252 /*----------------------------------------------------------------------*/
254 void lcd_printf(const char *fmt, ...)
257 char buf[CONFIG_SYS_PBSIZE];
260 vsprintf(buf, fmt, args);
266 /************************************************************************/
267 /* ** Low-Level Graphics Routines */
268 /************************************************************************/
270 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
275 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
276 y += BMP_LOGO_HEIGHT;
279 #if LCD_BPP == LCD_MONOCHROME
280 ushort off = x * (1 << LCD_BPP) % 8;
283 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
285 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
288 #if LCD_BPP == LCD_COLOR16
289 ushort *d = (ushort *)dest;
294 #if LCD_BPP == LCD_MONOCHROME
295 uchar rest = *d & -(1 << (8-off));
298 for (i = 0; i < count; ++i) {
302 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
304 #if LCD_BPP == LCD_MONOCHROME
305 sym = (COLOR_MASK(lcd_color_fg) & bits) |
306 (COLOR_MASK(lcd_color_bg) & ~bits);
308 *d++ = rest | (sym >> off);
309 rest = sym << (8-off);
310 #elif LCD_BPP == LCD_COLOR8
311 for (c = 0; c < 8; ++c) {
312 *d++ = (bits & 0x80) ?
313 lcd_color_fg : lcd_color_bg;
316 #elif LCD_BPP == LCD_COLOR16
317 for (c = 0; c < 8; ++c) {
318 *d++ = (bits & 0x80) ?
319 lcd_color_fg : lcd_color_bg;
324 #if LCD_BPP == LCD_MONOCHROME
325 *d = rest | (*d & ((1 << (8-off)) - 1));
330 /*----------------------------------------------------------------------*/
332 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
334 lcd_drawchars(x, y, s, strlen((char *)s));
337 /*----------------------------------------------------------------------*/
339 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
341 lcd_drawchars(x, y, &c, 1);
344 /************************************************************************/
345 /** Small utility to check that you got the colours right */
346 /************************************************************************/
347 #ifdef LCD_TEST_PATTERN
352 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
353 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
354 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
357 static void test_pattern(void)
359 ushort v_max = panel_info.vl_row;
360 ushort h_max = panel_info.vl_col;
361 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
362 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
364 uchar *pix = (uchar *)lcd_base;
366 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
367 h_max, v_max, h_step, v_step);
369 /* WARNING: Code silently assumes 8bit/pixel */
370 for (v = 0; v < v_max; ++v) {
371 uchar iy = v / v_step;
372 for (h = 0; h < h_max; ++h) {
373 uchar ix = N_BLK_HOR * iy + (h/h_step);
374 *pix++ = test_colors[ix];
378 #endif /* LCD_TEST_PATTERN */
381 /************************************************************************/
382 /* ** GENERIC Initialization Routines */
383 /************************************************************************/
385 int lcd_get_size(int *line_length)
387 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
388 return *line_length * panel_info.vl_row;
391 int drv_lcd_init (void)
393 struct stdio_dev lcddev;
396 lcd_base = (void *)(gd->fb_base);
398 lcd_get_size(&lcd_line_length);
400 lcd_init(lcd_base); /* LCD initialization */
402 /* Device initialization */
403 memset(&lcddev, 0, sizeof(lcddev));
405 strcpy(lcddev.name, "lcd");
406 lcddev.ext = 0; /* No extensions */
407 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
408 lcddev.putc = lcd_putc; /* 'putc' function */
409 lcddev.puts = lcd_puts; /* 'puts' function */
411 rc = stdio_register (&lcddev);
413 return (rc == 0) ? 1 : rc;
416 /*----------------------------------------------------------------------*/
419 #if LCD_BPP == LCD_MONOCHROME
420 /* Setting the palette */
423 #elif LCD_BPP == LCD_COLOR8
424 /* Setting the palette */
425 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
426 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
427 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
428 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
429 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
430 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
431 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
432 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
433 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
436 #ifndef CONFIG_SYS_WHITE_ON_BLACK
437 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
438 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
440 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
441 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
442 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
444 #ifdef LCD_TEST_PATTERN
447 /* set framebuffer to background color */
448 memset((char *)lcd_base,
449 COLOR_MASK(lcd_getbgcolor()),
450 lcd_line_length*panel_info.vl_row);
452 /* Paint the logo and retrieve LCD base address */
453 debug("[LCD] Drawing the logo...\n");
454 lcd_console_address = lcd_logo ();
461 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
469 cls, 1, 1, do_lcd_clear,
474 /*----------------------------------------------------------------------*/
476 static int lcd_init(void *lcdbase)
478 /* Initialize the lcd controller */
479 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
481 lcd_ctrl_init(lcdbase);
486 /* Initialize the console */
488 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
489 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
491 console_row = 1; /* leave 1 blank line below logo */
498 /************************************************************************/
499 /* ** ROM capable initialization part - needed to reserve FB memory */
500 /************************************************************************/
502 * This is called early in the system initialization to grab memory
503 * for the LCD controller.
504 * Returns new address for monitor, after reserving LCD buffer memory
506 * Note that this is running from ROM, so no write access to global data.
508 ulong lcd_setmem(ulong addr)
513 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
514 panel_info.vl_row, NBITS(panel_info.vl_bpix));
516 size = lcd_get_size(&line_length);
518 /* Round up to nearest full page, or MMU section if defined */
519 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
520 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
522 /* Allocate pages for the frame buffer. */
525 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
530 /*----------------------------------------------------------------------*/
532 static void lcd_setfgcolor(int color)
534 lcd_color_fg = color;
537 /*----------------------------------------------------------------------*/
539 static void lcd_setbgcolor(int color)
541 lcd_color_bg = color;
544 /*----------------------------------------------------------------------*/
546 int lcd_getfgcolor(void)
551 /*----------------------------------------------------------------------*/
553 static int lcd_getbgcolor(void)
558 /*----------------------------------------------------------------------*/
560 /************************************************************************/
561 /* ** Chipset depending Bitmap / Logo stuff... */
562 /************************************************************************/
563 static inline ushort *configuration_get_cmap(void)
565 #if defined CONFIG_CPU_PXA
566 struct pxafb_info *fbi = &panel_info.pxa;
567 return (ushort *)fbi->palette;
568 #elif defined(CONFIG_MPC823)
569 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
570 cpm8xx_t *cp = &(immr->im_cpm);
571 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
572 #elif defined(CONFIG_ATMEL_LCD)
573 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
574 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
575 return panel_info.cmap;
577 #if defined(CONFIG_LCD_LOGO)
578 return bmp_logo_palette;
585 #ifdef CONFIG_LCD_LOGO
586 void bitmap_plot(int x, int y)
588 #ifdef CONFIG_ATMEL_LCD
589 uint *cmap = (uint *)bmp_logo_palette;
591 ushort *cmap = (ushort *)bmp_logo_palette;
597 #if defined(CONFIG_MPC823)
598 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
599 cpm8xx_t *cp = &(immr->im_cpm);
602 debug("Logo: width %d height %d colors %d cmap %d\n",
603 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
604 ARRAY_SIZE(bmp_logo_palette));
606 bmap = &bmp_logo_bitmap[0];
607 fb = (uchar *)(lcd_base + y * lcd_line_length + x);
609 if (NBITS(panel_info.vl_bpix) < 12) {
610 /* Leave room for default color map
611 * default case: generic system with no cmap (most likely 16bpp)
612 * cmap was set to the source palette, so no change is done.
613 * This avoids even more ifdefs in the next stanza
615 #if defined(CONFIG_MPC823)
616 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
617 #elif defined(CONFIG_ATMEL_LCD)
618 cmap = (uint *)configuration_get_cmap();
620 cmap = configuration_get_cmap();
626 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
627 ushort colreg = bmp_logo_palette[i];
628 #ifdef CONFIG_ATMEL_LCD
630 #ifdef CONFIG_ATMEL_LCD_BGR555
631 lut_entry = ((colreg & 0x000F) << 11) |
632 ((colreg & 0x00F0) << 2) |
633 ((colreg & 0x0F00) >> 7);
634 #else /* CONFIG_ATMEL_LCD_RGB565 */
635 lut_entry = ((colreg & 0x000F) << 1) |
636 ((colreg & 0x00F0) << 3) |
637 ((colreg & 0x0F00) << 4);
639 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
641 #else /* !CONFIG_ATMEL_LCD */
642 #ifdef CONFIG_SYS_INVERT_COLORS
643 *cmap++ = 0xffff - colreg;
647 #endif /* CONFIG_ATMEL_LCD */
652 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
653 memcpy(fb, bmap, BMP_LOGO_WIDTH);
654 bmap += BMP_LOGO_WIDTH;
655 fb += panel_info.vl_col;
658 else { /* true color mode */
660 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
661 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
662 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
663 col16 = bmp_logo_palette[(bmap[j]-16)];
665 ((col16 & 0x000F) << 1) |
666 ((col16 & 0x00F0) << 3) |
667 ((col16 & 0x0F00) << 4);
669 bmap += BMP_LOGO_WIDTH;
670 fb16 += panel_info.vl_col;
678 static inline void bitmap_plot(int x, int y) {}
679 #endif /* CONFIG_LCD_LOGO */
681 /*----------------------------------------------------------------------*/
682 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
684 * Display the BMP file located at address bmp_image.
688 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
689 #define BMP_ALIGN_CENTER 0x7FFF
691 static void splash_align_axis(int *axis, unsigned long panel_size,
692 unsigned long picture_size)
694 unsigned long panel_picture_delta = panel_size - picture_size;
695 unsigned long axis_alignment;
697 if (*axis == BMP_ALIGN_CENTER)
698 axis_alignment = panel_picture_delta / 2;
700 axis_alignment = panel_picture_delta + *axis + 1;
704 *axis = max(0, axis_alignment);
709 #ifdef CONFIG_LCD_BMP_RLE8
711 #define BMP_RLE8_ESCAPE 0
712 #define BMP_RLE8_EOL 0
713 #define BMP_RLE8_EOBMP 1
714 #define BMP_RLE8_DELTA 2
716 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
720 *(*fbp)++ = cmap[*bmap++];
725 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
728 int cnt_8copy = cnt >> 3;
730 cnt -= cnt_8copy << 3;
731 while (cnt_8copy > 0) {
750 * Do not call this function directly, must be called from
751 * lcd_display_bitmap.
753 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
754 int x_off, int y_off)
762 width = le32_to_cpu(bmp->header.width);
763 height = le32_to_cpu(bmp->header.height);
764 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
770 if (bmap[0] == BMP_RLE8_ESCAPE) {
777 /* 16bpix, 2-byte per pixel, width should *2 */
778 fb -= (width * 2 + lcd_line_length);
788 /* 16bpix, 2-byte per pixel, x should *2 */
789 fb = (uchar *) (lcd_base + (y + y_off - 1)
790 * lcd_line_length + (x + x_off) * 2);
799 if (x + runlen > width)
803 draw_unencoded_bitmap(
818 /* aggregate the same code */
819 while (bmap[0] == 0xff &&
820 bmap[2] != BMP_RLE8_ESCAPE &&
821 bmap[1] == bmap[3]) {
825 if (x + runlen > width)
829 draw_encoded_bitmap((ushort **)&fb,
840 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
841 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
843 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
846 #if defined(CONFIG_BMP_16BPP)
847 #if defined(CONFIG_ATMEL_LCD_BGR555)
848 static inline void fb_put_word(uchar **fb, uchar **from)
850 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
851 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
855 static inline void fb_put_word(uchar **fb, uchar **from)
857 *(*fb)++ = *(*from)++;
858 *(*fb)++ = *(*from)++;
861 #endif /* CONFIG_BMP_16BPP */
863 int lcd_display_bitmap(ulong bmp_image, int x, int y)
865 #if !defined(CONFIG_MCC200)
868 ushort *cmap_base = NULL;
871 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
874 unsigned long width, height, byte_width;
875 unsigned long pwidth = panel_info.vl_col;
876 unsigned colors, bpix, bmp_bpix;
878 if (!bmp || !((bmp->header.signature[0] == 'B') &&
879 (bmp->header.signature[1] == 'M'))) {
880 printf("Error: no valid bmp image at %lx\n", bmp_image);
885 width = le32_to_cpu(bmp->header.width);
886 height = le32_to_cpu(bmp->header.height);
887 bmp_bpix = le16_to_cpu(bmp->header.bit_count);
888 colors = 1 << bmp_bpix;
890 bpix = NBITS(panel_info.vl_bpix);
892 if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
893 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
899 /* We support displaying 8bpp BMPs on 16bpp LCDs */
900 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
901 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
903 le16_to_cpu(bmp->header.bit_count));
908 debug("Display-bmp: %d x %d with %d colors\n",
909 (int)width, (int)height, (int)colors);
911 #if !defined(CONFIG_MCC200)
912 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
914 cmap = configuration_get_cmap();
918 for (i = 0; i < colors; ++i) {
919 bmp_color_table_entry_t cte = bmp->color_table[i];
920 #if !defined(CONFIG_ATMEL_LCD)
922 ( ((cte.red) << 8) & 0xf800) |
923 ( ((cte.green) << 3) & 0x07e0) |
924 ( ((cte.blue) >> 3) & 0x001f) ;
925 #ifdef CONFIG_SYS_INVERT_COLORS
926 *cmap = 0xffff - colreg;
930 #if defined(CONFIG_MPC823)
935 #else /* CONFIG_ATMEL_LCD */
936 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
943 * BMP format for Monochrome assumes that the state of a
944 * pixel is described on a per Bit basis, not per Byte.
945 * So, in case of Monochrome BMP we should align widths
946 * on a byte boundary and convert them from Bit to Byte
948 * Probably, PXA250 and MPC823 process 1bpp BMP images in
949 * their own ways, so make the converting to be MCC200
952 #if defined(CONFIG_MCC200)
954 width = ((width + 7) & ~7) >> 3;
955 x = ((x + 7) & ~7) >> 3;
956 pwidth= ((pwidth + 7) & ~7) >> 3;
960 padded_width = (width&0x3) ? ((width&~0x3)+4) : (width);
962 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
963 splash_align_axis(&x, pwidth, width);
964 splash_align_axis(&y, panel_info.vl_row, height);
965 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
967 if ((x + width) > pwidth)
969 if ((y + height) > panel_info.vl_row)
970 height = panel_info.vl_row - y;
972 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
973 fb = (uchar *) (lcd_base +
974 (y + height - 1) * lcd_line_length + x * bpix / 8);
977 case 1: /* pass through */
979 #ifdef CONFIG_LCD_BMP_RLE8
980 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) {
982 /* TODO implement render code for bpix != 16 */
983 printf("Error: only support 16 bpix");
986 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
994 byte_width = width * 2;
996 for (i = 0; i < height; ++i) {
998 for (j = 0; j < width; j++) {
1000 FB_PUT_BYTE(fb, bmap);
1002 *(uint16_t *)fb = cmap_base[*(bmap++)];
1003 fb += sizeof(uint16_t) / sizeof(*fb);
1006 bmap += (padded_width - width);
1007 fb -= (byte_width + lcd_line_length);
1011 #if defined(CONFIG_BMP_16BPP)
1013 for (i = 0; i < height; ++i) {
1015 for (j = 0; j < width; j++)
1016 fb_put_word(&fb, &bmap);
1018 bmap += (padded_width - width) * 2;
1019 fb -= (width * 2 + lcd_line_length);
1022 #endif /* CONFIG_BMP_16BPP */
1024 #if defined(CONFIG_BMP_32BPP)
1026 for (i = 0; i < height; ++i) {
1027 for (j = 0; j < width; j++) {
1028 *(fb++) = *(bmap++);
1029 *(fb++) = *(bmap++);
1030 *(fb++) = *(bmap++);
1031 *(fb++) = *(bmap++);
1033 fb -= (lcd_line_length + width * (bpix / 8));
1036 #endif /* CONFIG_BMP_32BPP */
1046 #ifdef CONFIG_SPLASH_SCREEN_PREPARE
1047 static inline int splash_screen_prepare(void)
1049 return board_splash_screen_prepare();
1052 static inline int splash_screen_prepare(void)
1058 static void *lcd_logo(void)
1060 #ifdef CONFIG_SPLASH_SCREEN
1063 static int do_splash = 1;
1065 if (do_splash && (s = getenv("splashimage")) != NULL) {
1069 if (splash_screen_prepare())
1070 return (void *)gd->fb_base;
1072 addr = simple_strtoul (s, NULL, 16);
1073 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1074 s = getenv("splashpos");
1077 x = BMP_ALIGN_CENTER;
1079 x = simple_strtol(s, NULL, 0);
1081 s = strchr(s + 1, ',');
1084 y = BMP_ALIGN_CENTER;
1086 y = simple_strtol (s + 1, NULL, 0);
1089 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1091 if (bmp_display(addr, x, y) == 0)
1092 return (void *)lcd_base;
1094 #endif /* CONFIG_SPLASH_SCREEN */
1098 #ifdef CONFIG_LCD_INFO
1099 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1100 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1101 lcd_show_board_info();
1102 #endif /* CONFIG_LCD_INFO */
1104 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1105 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1107 return (void *)lcd_base;
1108 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
1111 #ifdef CONFIG_SPLASHIMAGE_GUARD
1112 static int on_splashimage(const char *name, const char *value, enum env_op op,
1118 if (op == env_op_delete)
1121 addr = simple_strtoul(value, NULL, 16);
1122 /* See README.displaying-bmps */
1123 aligned = (addr % 4 == 2);
1125 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1132 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1135 void lcd_position_cursor(unsigned col, unsigned row)
1137 console_col = min(col, CONSOLE_COLS - 1);
1138 console_row = min(row, CONSOLE_ROWS - 1);
1141 int lcd_get_pixel_width(void)
1143 return panel_info.vl_col;
1146 int lcd_get_pixel_height(void)
1148 return panel_info.vl_row;
1151 int lcd_get_screen_rows(void)
1153 return CONSOLE_ROWS;
1156 int lcd_get_screen_columns(void)
1158 return CONSOLE_COLS;
1161 /************************************************************************/
1162 /************************************************************************/