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 /************************************************************************/
36 #include <linux/types.h>
37 #include <stdio_dev.h>
38 #if defined(CONFIG_POST)
44 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
45 defined(CONFIG_CPU_MONAHANS)
46 #define CONFIG_CPU_PXA
47 #include <asm/byteorder.h>
50 #if defined(CONFIG_MPC823)
54 #if defined(CONFIG_ATMEL_LCD)
55 #include <atmel_lcdc.h>
58 /************************************************************************/
60 /************************************************************************/
61 #include <video_font.h> /* Get font data, width and height */
62 #include <video_font_data.h>
64 /************************************************************************/
66 /************************************************************************/
67 #ifdef CONFIG_LCD_LOGO
68 # include <bmp_logo.h> /* Get logo data, width and height */
69 # include <bmp_logo_data.h>
70 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
71 # error Default Color Map overlaps with Logo Color Map
75 #ifndef CONFIG_LCD_ALIGNMENT
76 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
79 /* By default we scroll by a single line */
80 #ifndef CONFIG_CONSOLE_SCROLL_LINES
81 #define CONFIG_CONSOLE_SCROLL_LINES 1
84 DECLARE_GLOBAL_DATA_PTR;
86 ulong lcd_setmem (ulong addr);
88 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
89 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
90 static inline void lcd_putc_xy(ushort x, ushort y, uchar c);
92 static int lcd_init(void *lcdbase);
94 static void *lcd_logo (void);
96 static int lcd_getbgcolor(void);
97 static void lcd_setfgcolor(int color);
98 static void lcd_setbgcolor(int color);
100 char lcd_is_enabled = 0;
102 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
105 #ifdef NOT_USED_SO_FAR
106 static void lcd_getcolreg(ushort regno,
107 ushort *red, ushort *green, ushort *blue);
108 static int lcd_getfgcolor(void);
109 #endif /* NOT_USED_SO_FAR */
111 /************************************************************************/
113 /* Flush LCD activity to the caches */
117 * flush_dcache_range() is declared in common.h but it seems that some
118 * architectures do not actually implement it. Is there a way to find
119 * out whether it exists? For now, ARM is safe.
121 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
124 if (lcd_flush_dcache)
125 flush_dcache_range((u32)lcd_base,
126 (u32)(lcd_base + lcd_get_size(&line_length)));
130 void lcd_set_flush_dcache(int flush)
132 lcd_flush_dcache = (flush != 0);
135 /*----------------------------------------------------------------------*/
137 static void console_scrollup(void)
139 const int rows = CONFIG_CONSOLE_SCROLL_LINES;
141 /* Copy up rows ignoring those that will be overwritten */
142 memcpy(CONSOLE_ROW_FIRST,
143 lcd_console_address + CONSOLE_ROW_SIZE * rows,
144 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
146 /* Clear the last rows */
147 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
148 COLOR_MASK(lcd_color_bg),
149 CONSOLE_ROW_SIZE * rows);
155 /*----------------------------------------------------------------------*/
157 static inline void console_back(void)
159 if (--console_col < 0) {
160 console_col = CONSOLE_COLS-1 ;
161 if (--console_row < 0) {
166 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
167 console_row * VIDEO_FONT_HEIGHT, ' ');
170 /*----------------------------------------------------------------------*/
172 static inline void console_newline(void)
177 /* Check if we need to scroll the terminal */
178 if (console_row >= CONSOLE_ROWS) {
179 /* Scroll everything up */
186 /*----------------------------------------------------------------------*/
188 void lcd_putc(const char c)
190 if (!lcd_is_enabled) {
205 case '\t': /* Tab (8 chars alignment) */
209 if (console_col >= CONSOLE_COLS)
218 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
219 console_row * VIDEO_FONT_HEIGHT, c);
220 if (++console_col >= CONSOLE_COLS)
225 /*----------------------------------------------------------------------*/
227 void lcd_puts(const char *s)
229 if (!lcd_is_enabled) {
241 /*----------------------------------------------------------------------*/
243 void lcd_printf(const char *fmt, ...)
246 char buf[CONFIG_SYS_PBSIZE];
249 vsprintf(buf, fmt, args);
255 /************************************************************************/
256 /* ** Low-Level Graphics Routines */
257 /************************************************************************/
259 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
264 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
265 y += BMP_LOGO_HEIGHT;
268 #if LCD_BPP == LCD_MONOCHROME
269 ushort off = x * (1 << LCD_BPP) % 8;
272 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
274 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
277 #if LCD_BPP == LCD_COLOR16
278 ushort *d = (ushort *)dest;
283 #if LCD_BPP == LCD_MONOCHROME
284 uchar rest = *d & -(1 << (8-off));
287 for (i = 0; i < count; ++i) {
291 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
293 #if LCD_BPP == LCD_MONOCHROME
294 sym = (COLOR_MASK(lcd_color_fg) & bits) |
295 (COLOR_MASK(lcd_color_bg) & ~bits);
297 *d++ = rest | (sym >> off);
298 rest = sym << (8-off);
299 #elif LCD_BPP == LCD_COLOR8
300 for (c = 0; c < 8; ++c) {
301 *d++ = (bits & 0x80) ?
302 lcd_color_fg : lcd_color_bg;
305 #elif LCD_BPP == LCD_COLOR16
306 for (c = 0; c < 8; ++c) {
307 *d++ = (bits & 0x80) ?
308 lcd_color_fg : lcd_color_bg;
313 #if LCD_BPP == LCD_MONOCHROME
314 *d = rest | (*d & ((1 << (8-off)) - 1));
319 /*----------------------------------------------------------------------*/
321 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
323 lcd_drawchars(x, y, s, strlen((char *)s));
326 /*----------------------------------------------------------------------*/
328 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
330 lcd_drawchars(x, y, &c, 1);
333 /************************************************************************/
334 /** Small utility to check that you got the colours right */
335 /************************************************************************/
336 #ifdef LCD_TEST_PATTERN
341 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
342 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
343 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
346 static void test_pattern(void)
348 ushort v_max = panel_info.vl_row;
349 ushort h_max = panel_info.vl_col;
350 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
351 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
353 uchar *pix = (uchar *)lcd_base;
355 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
356 h_max, v_max, h_step, v_step);
358 /* WARNING: Code silently assumes 8bit/pixel */
359 for (v = 0; v < v_max; ++v) {
360 uchar iy = v / v_step;
361 for (h = 0; h < h_max; ++h) {
362 uchar ix = N_BLK_HOR * iy + (h/h_step);
363 *pix++ = test_colors[ix];
367 #endif /* LCD_TEST_PATTERN */
370 /************************************************************************/
371 /* ** GENERIC Initialization Routines */
372 /************************************************************************/
374 int lcd_get_size(int *line_length)
376 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
377 return *line_length * panel_info.vl_row;
380 int drv_lcd_init (void)
382 struct stdio_dev lcddev;
385 lcd_base = (void *)(gd->fb_base);
387 lcd_get_size(&lcd_line_length);
389 lcd_init(lcd_base); /* LCD initialization */
391 /* Device initialization */
392 memset(&lcddev, 0, sizeof(lcddev));
394 strcpy(lcddev.name, "lcd");
395 lcddev.ext = 0; /* No extensions */
396 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
397 lcddev.putc = lcd_putc; /* 'putc' function */
398 lcddev.puts = lcd_puts; /* 'puts' function */
400 rc = stdio_register (&lcddev);
402 return (rc == 0) ? 1 : rc;
405 /*----------------------------------------------------------------------*/
408 #if LCD_BPP == LCD_MONOCHROME
409 /* Setting the palette */
412 #elif LCD_BPP == LCD_COLOR8
413 /* Setting the palette */
414 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
415 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
416 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
417 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
418 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
419 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
420 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
421 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
422 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
425 #ifndef CONFIG_SYS_WHITE_ON_BLACK
426 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
427 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
429 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
430 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
431 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
433 #ifdef LCD_TEST_PATTERN
436 /* set framebuffer to background color */
437 memset((char *)lcd_base,
438 COLOR_MASK(lcd_getbgcolor()),
439 lcd_line_length*panel_info.vl_row);
441 /* Paint the logo and retrieve LCD base address */
442 debug("[LCD] Drawing the logo...\n");
443 lcd_console_address = lcd_logo ();
450 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
458 cls, 1, 1, do_lcd_clear,
463 /*----------------------------------------------------------------------*/
465 static int lcd_init(void *lcdbase)
467 /* Initialize the lcd controller */
468 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
470 lcd_ctrl_init(lcdbase);
475 /* Initialize the console */
477 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
478 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
480 console_row = 1; /* leave 1 blank line below logo */
487 /************************************************************************/
488 /* ** ROM capable initialization part - needed to reserve FB memory */
489 /************************************************************************/
491 * This is called early in the system initialization to grab memory
492 * for the LCD controller.
493 * Returns new address for monitor, after reserving LCD buffer memory
495 * Note that this is running from ROM, so no write access to global data.
497 ulong lcd_setmem(ulong addr)
502 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
503 panel_info.vl_row, NBITS(panel_info.vl_bpix));
505 size = lcd_get_size(&line_length);
507 /* Round up to nearest full page, or MMU section if defined */
508 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
509 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
511 /* Allocate pages for the frame buffer. */
514 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
519 /*----------------------------------------------------------------------*/
521 static void lcd_setfgcolor(int color)
523 lcd_color_fg = color;
526 /*----------------------------------------------------------------------*/
528 static void lcd_setbgcolor(int color)
530 lcd_color_bg = color;
533 /*----------------------------------------------------------------------*/
535 #ifdef NOT_USED_SO_FAR
536 static int lcd_getfgcolor(void)
540 #endif /* NOT_USED_SO_FAR */
542 /*----------------------------------------------------------------------*/
544 static int lcd_getbgcolor(void)
549 /*----------------------------------------------------------------------*/
551 /************************************************************************/
552 /* ** Chipset depending Bitmap / Logo stuff... */
553 /************************************************************************/
554 static inline ushort *configuration_get_cmap(void)
556 #if defined CONFIG_CPU_PXA
557 struct pxafb_info *fbi = &panel_info.pxa;
558 return (ushort *)fbi->palette;
559 #elif defined(CONFIG_MPC823)
560 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
561 cpm8xx_t *cp = &(immr->im_cpm);
562 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
563 #elif defined(CONFIG_ATMEL_LCD)
564 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
565 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
566 return panel_info.cmap;
568 #if defined(CONFIG_LCD_LOGO)
569 return bmp_logo_palette;
576 #ifdef CONFIG_LCD_LOGO
577 void bitmap_plot(int x, int y)
579 #ifdef CONFIG_ATMEL_LCD
580 uint *cmap = (uint *)bmp_logo_palette;
582 ushort *cmap = (ushort *)bmp_logo_palette;
588 #if defined(CONFIG_MPC823)
589 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
590 cpm8xx_t *cp = &(immr->im_cpm);
593 debug("Logo: width %d height %d colors %d cmap %d\n",
594 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
595 ARRAY_SIZE(bmp_logo_palette));
597 bmap = &bmp_logo_bitmap[0];
598 fb = (uchar *)(lcd_base + y * lcd_line_length + x);
600 if (NBITS(panel_info.vl_bpix) < 12) {
601 /* Leave room for default color map
602 * default case: generic system with no cmap (most likely 16bpp)
603 * cmap was set to the source palette, so no change is done.
604 * This avoids even more ifdefs in the next stanza
606 #if defined(CONFIG_MPC823)
607 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
608 #elif defined(CONFIG_ATMEL_LCD)
609 cmap = (uint *)configuration_get_cmap();
611 cmap = configuration_get_cmap();
617 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
618 ushort colreg = bmp_logo_palette[i];
619 #ifdef CONFIG_ATMEL_LCD
621 #ifdef CONFIG_ATMEL_LCD_BGR555
622 lut_entry = ((colreg & 0x000F) << 11) |
623 ((colreg & 0x00F0) << 2) |
624 ((colreg & 0x0F00) >> 7);
625 #else /* CONFIG_ATMEL_LCD_RGB565 */
626 lut_entry = ((colreg & 0x000F) << 1) |
627 ((colreg & 0x00F0) << 3) |
628 ((colreg & 0x0F00) << 4);
630 *(cmap + BMP_LOGO_OFFSET) = lut_entry;
632 #else /* !CONFIG_ATMEL_LCD */
633 #ifdef CONFIG_SYS_INVERT_COLORS
634 *cmap++ = 0xffff - colreg;
638 #endif /* CONFIG_ATMEL_LCD */
643 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
644 memcpy(fb, bmap, BMP_LOGO_WIDTH);
645 bmap += BMP_LOGO_WIDTH;
646 fb += panel_info.vl_col;
649 else { /* true color mode */
651 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
652 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
653 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
654 col16 = bmp_logo_palette[(bmap[j]-16)];
656 ((col16 & 0x000F) << 1) |
657 ((col16 & 0x00F0) << 3) |
658 ((col16 & 0x0F00) << 4);
660 bmap += BMP_LOGO_WIDTH;
661 fb16 += panel_info.vl_col;
669 static inline void bitmap_plot(int x, int y) {}
670 #endif /* CONFIG_LCD_LOGO */
672 /*----------------------------------------------------------------------*/
673 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
675 * Display the BMP file located at address bmp_image.
679 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
680 #define BMP_ALIGN_CENTER 0x7FFF
682 static void splash_align_axis(int *axis, unsigned long panel_size,
683 unsigned long picture_size)
685 unsigned long panel_picture_delta = panel_size - picture_size;
686 unsigned long axis_alignment;
688 if (*axis == BMP_ALIGN_CENTER)
689 axis_alignment = panel_picture_delta / 2;
691 axis_alignment = panel_picture_delta + *axis + 1;
695 *axis = max(0, axis_alignment);
700 #ifdef CONFIG_LCD_BMP_RLE8
702 #define BMP_RLE8_ESCAPE 0
703 #define BMP_RLE8_EOL 0
704 #define BMP_RLE8_EOBMP 1
705 #define BMP_RLE8_DELTA 2
707 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
711 *(*fbp)++ = cmap[*bmap++];
716 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
719 int cnt_8copy = cnt >> 3;
721 cnt -= cnt_8copy << 3;
722 while (cnt_8copy > 0) {
741 * Do not call this function directly, must be called from
742 * lcd_display_bitmap.
744 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
745 int x_off, int y_off)
753 width = le32_to_cpu(bmp->header.width);
754 height = le32_to_cpu(bmp->header.height);
755 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
761 if (bmap[0] == BMP_RLE8_ESCAPE) {
768 /* 16bpix, 2-byte per pixel, width should *2 */
769 fb -= (width * 2 + lcd_line_length);
779 /* 16bpix, 2-byte per pixel, x should *2 */
780 fb = (uchar *) (lcd_base + (y + y_off - 1)
781 * lcd_line_length + (x + x_off) * 2);
790 if (x + runlen > width)
794 draw_unencoded_bitmap(
809 /* aggregate the same code */
810 while (bmap[0] == 0xff &&
811 bmap[2] != BMP_RLE8_ESCAPE &&
812 bmap[1] == bmap[3]) {
816 if (x + runlen > width)
820 draw_encoded_bitmap((ushort **)&fb,
831 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
832 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
834 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
837 #if defined(CONFIG_BMP_16BPP)
838 #if defined(CONFIG_ATMEL_LCD_BGR555)
839 static inline void fb_put_word(uchar **fb, uchar **from)
841 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
842 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
846 static inline void fb_put_word(uchar **fb, uchar **from)
848 *(*fb)++ = *(*from)++;
849 *(*fb)++ = *(*from)++;
852 #endif /* CONFIG_BMP_16BPP */
854 int lcd_display_bitmap(ulong bmp_image, int x, int y)
856 #if !defined(CONFIG_MCC200)
859 ushort *cmap_base = NULL;
862 bmp_image_t *bmp=(bmp_image_t *)bmp_image;
865 unsigned long width, height, byte_width;
866 unsigned long pwidth = panel_info.vl_col;
867 unsigned colors, bpix, bmp_bpix;
869 if (!bmp || !((bmp->header.signature[0] == 'B') &&
870 (bmp->header.signature[1] == 'M'))) {
871 printf("Error: no valid bmp image at %lx\n", bmp_image);
876 width = le32_to_cpu(bmp->header.width);
877 height = le32_to_cpu(bmp->header.height);
878 bmp_bpix = le16_to_cpu(bmp->header.bit_count);
879 colors = 1 << bmp_bpix;
881 bpix = NBITS(panel_info.vl_bpix);
883 if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
884 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
890 /* We support displaying 8bpp BMPs on 16bpp LCDs */
891 if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) {
892 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
894 le16_to_cpu(bmp->header.bit_count));
899 debug("Display-bmp: %d x %d with %d colors\n",
900 (int)width, (int)height, (int)colors);
902 #if !defined(CONFIG_MCC200)
903 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
905 cmap = configuration_get_cmap();
909 for (i = 0; i < colors; ++i) {
910 bmp_color_table_entry_t cte = bmp->color_table[i];
911 #if !defined(CONFIG_ATMEL_LCD)
913 ( ((cte.red) << 8) & 0xf800) |
914 ( ((cte.green) << 3) & 0x07e0) |
915 ( ((cte.blue) >> 3) & 0x001f) ;
916 #ifdef CONFIG_SYS_INVERT_COLORS
917 *cmap = 0xffff - colreg;
921 #if defined(CONFIG_MPC823)
926 #else /* CONFIG_ATMEL_LCD */
927 lcd_setcolreg(i, cte.red, cte.green, cte.blue);
934 * BMP format for Monochrome assumes that the state of a
935 * pixel is described on a per Bit basis, not per Byte.
936 * So, in case of Monochrome BMP we should align widths
937 * on a byte boundary and convert them from Bit to Byte
939 * Probably, PXA250 and MPC823 process 1bpp BMP images in
940 * their own ways, so make the converting to be MCC200
943 #if defined(CONFIG_MCC200)
945 width = ((width + 7) & ~7) >> 3;
946 x = ((x + 7) & ~7) >> 3;
947 pwidth= ((pwidth + 7) & ~7) >> 3;
951 padded_width = (width&0x3) ? ((width&~0x3)+4) : (width);
953 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
954 splash_align_axis(&x, pwidth, width);
955 splash_align_axis(&y, panel_info.vl_row, height);
956 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
958 if ((x + width) > pwidth)
960 if ((y + height) > panel_info.vl_row)
961 height = panel_info.vl_row - y;
963 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
964 fb = (uchar *) (lcd_base +
965 (y + height - 1) * lcd_line_length + x * bpix / 8);
968 case 1: /* pass through */
970 #ifdef CONFIG_LCD_BMP_RLE8
971 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) {
973 /* TODO implement render code for bpix != 16 */
974 printf("Error: only support 16 bpix");
977 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
985 byte_width = width * 2;
987 for (i = 0; i < height; ++i) {
989 for (j = 0; j < width; j++) {
991 FB_PUT_BYTE(fb, bmap);
993 *(uint16_t *)fb = cmap_base[*(bmap++)];
994 fb += sizeof(uint16_t) / sizeof(*fb);
997 bmap += (padded_width - width);
998 fb -= (byte_width + lcd_line_length);
1002 #if defined(CONFIG_BMP_16BPP)
1004 for (i = 0; i < height; ++i) {
1006 for (j = 0; j < width; j++)
1007 fb_put_word(&fb, &bmap);
1009 bmap += (padded_width - width) * 2;
1010 fb -= (width * 2 + lcd_line_length);
1013 #endif /* CONFIG_BMP_16BPP */
1015 #if defined(CONFIG_BMP_32BPP)
1017 for (i = 0; i < height; ++i) {
1018 for (j = 0; j < width; j++) {
1019 *(fb++) = *(bmap++);
1020 *(fb++) = *(bmap++);
1021 *(fb++) = *(bmap++);
1022 *(fb++) = *(bmap++);
1024 fb -= (lcd_line_length + width * (bpix / 8));
1027 #endif /* CONFIG_BMP_32BPP */
1037 static void *lcd_logo(void)
1039 #ifdef CONFIG_SPLASH_SCREEN
1042 static int do_splash = 1;
1044 if (do_splash && (s = getenv("splashimage")) != NULL) {
1048 addr = simple_strtoul (s, NULL, 16);
1049 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1050 s = getenv("splashpos");
1053 x = BMP_ALIGN_CENTER;
1055 x = simple_strtol(s, NULL, 0);
1057 s = strchr(s + 1, ',');
1060 y = BMP_ALIGN_CENTER;
1062 y = simple_strtol (s + 1, NULL, 0);
1065 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1067 if (bmp_display(addr, x, y) == 0)
1068 return (void *)lcd_base;
1070 #endif /* CONFIG_SPLASH_SCREEN */
1074 #ifdef CONFIG_LCD_INFO
1075 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1076 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1077 lcd_show_board_info();
1078 #endif /* CONFIG_LCD_INFO */
1080 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1081 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1083 return (void *)lcd_base;
1084 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
1087 void lcd_position_cursor(unsigned col, unsigned row)
1089 console_col = min(col, CONSOLE_COLS - 1);
1090 console_row = min(row, CONSOLE_ROWS - 1);
1093 int lcd_get_pixel_width(void)
1095 return panel_info.vl_col;
1098 int lcd_get_pixel_height(void)
1100 return panel_info.vl_row;
1103 int lcd_get_screen_rows(void)
1105 return CONSOLE_ROWS;
1108 int lcd_get_screen_columns(void)
1110 return CONSOLE_COLS;
1113 /************************************************************************/
1114 /************************************************************************/