Merge tag 'signed-efi-next' of git://github.com/agraf/u-boot
[platform/kernel/u-boot.git] / common / lcd.c
1 /*
2  * Common LCD routines
3  *
4  * (C) Copyright 2001-2002
5  * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9
10 /* #define DEBUG */
11 #include <config.h>
12 #include <common.h>
13 #include <command.h>
14 #include <env_callback.h>
15 #include <linux/types.h>
16 #include <stdio_dev.h>
17 #include <lcd.h>
18 #include <mapmem.h>
19 #include <watchdog.h>
20 #include <asm/unaligned.h>
21 #include <splash.h>
22 #include <asm/io.h>
23 #include <asm/unaligned.h>
24 #include <video_font.h>
25
26 #ifdef CONFIG_LCD_LOGO
27 #include <bmp_logo.h>
28 #include <bmp_logo_data.h>
29 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
30 #error Default Color Map overlaps with Logo Color Map
31 #endif
32 #endif
33
34 #ifndef CONFIG_LCD_ALIGNMENT
35 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
36 #endif
37
38 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
39         (LCD_BPP != LCD_COLOR32)
40 #error Unsupported LCD BPP.
41 #endif
42
43 DECLARE_GLOBAL_DATA_PTR;
44
45 static int lcd_init(void *lcdbase);
46 static void lcd_logo(void);
47 static void lcd_setfgcolor(int color);
48 static void lcd_setbgcolor(int color);
49
50 static int lcd_color_fg;
51 static int lcd_color_bg;
52 int lcd_line_length;
53 char lcd_is_enabled = 0;
54 static void *lcd_base;                  /* Start of framebuffer memory  */
55 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
56
57 /* Flush LCD activity to the caches */
58 void lcd_sync(void)
59 {
60         /*
61          * flush_dcache_range() is declared in common.h but it seems that some
62          * architectures do not actually implement it. Is there a way to find
63          * out whether it exists? For now, ARM is safe.
64          */
65 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
66         int line_length;
67
68         if (lcd_flush_dcache)
69                 flush_dcache_range((ulong)lcd_base,
70                         (ulong)(lcd_base + lcd_get_size(&line_length)));
71 #endif
72 }
73
74 void lcd_set_flush_dcache(int flush)
75 {
76         lcd_flush_dcache = (flush != 0);
77 }
78
79 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
80 {
81         lcd_putc(c);
82 }
83
84 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
85 {
86         lcd_puts(s);
87 }
88
89 /* Small utility to check that you got the colours right */
90 #ifdef LCD_TEST_PATTERN
91
92 #if LCD_BPP == LCD_COLOR8
93 #define N_BLK_VERT      2
94 #define N_BLK_HOR       3
95
96 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
97         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
98         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
99 }; /*LCD_BPP == LCD_COLOR8 */
100
101 #elif LCD_BPP == LCD_COLOR16
102 #define N_BLK_VERT      2
103 #define N_BLK_HOR       4
104
105 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
106         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,   CONSOLE_COLOR_BLUE,
107         CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,     CONSOLE_COLOR_GREY,     CONSOLE_COLOR_WHITE,
108 };
109 #endif /*LCD_BPP == LCD_COLOR16 */
110
111 static void test_pattern(void)
112 {
113         ushort v_max  = panel_info.vl_row;
114         ushort h_max  = panel_info.vl_col;
115         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
116         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
117         ushort v, h;
118 #if LCD_BPP == LCD_COLOR8
119         uchar *pix = (uchar *)lcd_base;
120 #elif LCD_BPP == LCD_COLOR16
121         ushort *pix = (ushort *)lcd_base;
122 #endif
123
124         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
125                 h_max, v_max, h_step, v_step);
126
127         for (v = 0; v < v_max; ++v) {
128                 uchar iy = v / v_step;
129                 for (h = 0; h < h_max; ++h) {
130                         uchar ix = N_BLK_HOR * iy + h / h_step;
131                         *pix++ = test_colors[ix];
132                 }
133         }
134 }
135 #endif /* LCD_TEST_PATTERN */
136
137 /*
138  * With most lcd drivers the line length is set up
139  * by calculating it from panel_info parameters. Some
140  * drivers need to calculate the line length differently,
141  * so make the function weak to allow overriding it.
142  */
143 __weak int lcd_get_size(int *line_length)
144 {
145         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
146         return *line_length * panel_info.vl_row;
147 }
148
149 int drv_lcd_init(void)
150 {
151         struct stdio_dev lcddev;
152         int rc;
153
154         lcd_base = map_sysmem(gd->fb_base, 0);
155
156         lcd_init(lcd_base);
157
158         /* Device initialization */
159         memset(&lcddev, 0, sizeof(lcddev));
160
161         strcpy(lcddev.name, "lcd");
162         lcddev.ext   = 0;                       /* No extensions */
163         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
164         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
165         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
166
167         rc = stdio_register(&lcddev);
168
169         return (rc == 0) ? 1 : rc;
170 }
171
172 void lcd_clear(void)
173 {
174         int bg_color;
175         char *s;
176         ulong addr;
177         static int do_splash = 1;
178 #if LCD_BPP == LCD_COLOR8
179         /* Setting the palette */
180         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
181         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
182         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
183         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
184         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
185         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
186         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
187         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
188         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
189 #endif
190
191 #ifndef CONFIG_SYS_WHITE_ON_BLACK
192         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
193         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
194         bg_color = CONSOLE_COLOR_WHITE;
195 #else
196         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
197         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
198         bg_color = CONSOLE_COLOR_BLACK;
199 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
200
201 #ifdef  LCD_TEST_PATTERN
202         test_pattern();
203 #else
204         /* set framebuffer to background color */
205 #if (LCD_BPP != LCD_COLOR32)
206         memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
207 #else
208         u32 *ppix = lcd_base;
209         u32 i;
210         for (i = 0;
211            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
212            i++) {
213                 *ppix++ = bg_color;
214         }
215 #endif
216 #endif
217         /* setup text-console */
218         debug("[LCD] setting up console...\n");
219         lcd_init_console(lcd_base,
220                          panel_info.vl_col,
221                          panel_info.vl_row,
222                          panel_info.vl_rot);
223         /* Paint the logo and retrieve LCD base address */
224         debug("[LCD] Drawing the logo...\n");
225         if (do_splash) {
226                 s = env_get("splashimage");
227                 if (s) {
228                         do_splash = 0;
229                         addr = simple_strtoul(s, NULL, 16);
230                         if (lcd_splash(addr) == 0) {
231                                 lcd_sync();
232                                 return;
233                         }
234                 }
235         }
236
237         lcd_logo();
238 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
239         addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
240         lcd_init_console((void *)addr, panel_info.vl_col,
241                          panel_info.vl_row, panel_info.vl_rot);
242 #endif
243         lcd_sync();
244 }
245
246 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
247                         char *const argv[])
248 {
249         lcd_clear();
250         return 0;
251 }
252 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", "");
253
254 static int lcd_init(void *lcdbase)
255 {
256         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
257         lcd_ctrl_init(lcdbase);
258
259         /*
260          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
261          * the 'lcdbase' argument and uses custom lcd base address
262          * by setting up gd->fb_base. Check for this condition and fixup
263          * 'lcd_base' address.
264          */
265         if (map_to_sysmem(lcdbase) != gd->fb_base)
266                 lcd_base = map_sysmem(gd->fb_base, 0);
267
268         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
269
270         lcd_get_size(&lcd_line_length);
271         lcd_is_enabled = 1;
272         lcd_clear();
273         lcd_enable();
274
275         /* Initialize the console */
276         lcd_set_col(0);
277 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
278         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
279 #else
280         lcd_set_row(1); /* leave 1 blank line below logo */
281 #endif
282
283         return 0;
284 }
285
286 /*
287  * This is called early in the system initialization to grab memory
288  * for the LCD controller.
289  * Returns new address for monitor, after reserving LCD buffer memory
290  *
291  * Note that this is running from ROM, so no write access to global data.
292  */
293 ulong lcd_setmem(ulong addr)
294 {
295         ulong size;
296         int line_length;
297
298         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
299                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
300
301         size = lcd_get_size(&line_length);
302
303         /* Round up to nearest full page, or MMU section if defined */
304         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
305         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
306
307         /* Allocate pages for the frame buffer. */
308         addr -= size;
309
310         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
311               size >> 10, addr);
312
313         return addr;
314 }
315
316 static void lcd_setfgcolor(int color)
317 {
318         lcd_color_fg = color;
319 }
320
321 int lcd_getfgcolor(void)
322 {
323         return lcd_color_fg;
324 }
325
326 static void lcd_setbgcolor(int color)
327 {
328         lcd_color_bg = color;
329 }
330
331 int lcd_getbgcolor(void)
332 {
333         return lcd_color_bg;
334 }
335
336 #ifdef CONFIG_LCD_LOGO
337 __weak void lcd_logo_set_cmap(void)
338 {
339         int i;
340         ushort *cmap = configuration_get_cmap();
341
342         for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
343                 *cmap++ = bmp_logo_palette[i];
344 }
345
346 void lcd_logo_plot(int x, int y)
347 {
348         ushort i, j;
349         uchar *bmap = &bmp_logo_bitmap[0];
350         unsigned bpix = NBITS(panel_info.vl_bpix);
351         uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
352         ushort *fb16;
353
354         debug("Logo: width %d  height %d  colors %d\n",
355               BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
356
357         if (bpix < 12) {
358                 WATCHDOG_RESET();
359                 lcd_logo_set_cmap();
360                 WATCHDOG_RESET();
361
362                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
363                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
364                         bmap += BMP_LOGO_WIDTH;
365                         fb += panel_info.vl_col;
366                 }
367         }
368         else { /* true color mode */
369                 u16 col16;
370                 fb16 = (ushort *)fb;
371                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
372                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
373                                 col16 = bmp_logo_palette[(bmap[j]-16)];
374                                 fb16[j] =
375                                         ((col16 & 0x000F) << 1) |
376                                         ((col16 & 0x00F0) << 3) |
377                                         ((col16 & 0x0F00) << 4);
378                                 }
379                         bmap += BMP_LOGO_WIDTH;
380                         fb16 += panel_info.vl_col;
381                 }
382         }
383
384         WATCHDOG_RESET();
385         lcd_sync();
386 }
387 #else
388 static inline void lcd_logo_plot(int x, int y) {}
389 #endif /* CONFIG_LCD_LOGO */
390
391 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
392 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
393 #define BMP_ALIGN_CENTER        0x7FFF
394
395 static void splash_align_axis(int *axis, unsigned long panel_size,
396                                         unsigned long picture_size)
397 {
398         unsigned long panel_picture_delta = panel_size - picture_size;
399         unsigned long axis_alignment;
400
401         if (*axis == BMP_ALIGN_CENTER)
402                 axis_alignment = panel_picture_delta / 2;
403         else if (*axis < 0)
404                 axis_alignment = panel_picture_delta + *axis + 1;
405         else
406                 return;
407
408         *axis = max(0, (int)axis_alignment);
409 }
410 #endif
411
412 #ifdef CONFIG_LCD_BMP_RLE8
413 #define BMP_RLE8_ESCAPE         0
414 #define BMP_RLE8_EOL            0
415 #define BMP_RLE8_EOBMP          1
416 #define BMP_RLE8_DELTA          2
417
418 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
419                                   int cnt)
420 {
421         while (cnt > 0) {
422                 *(*fbp)++ = cmap[*bmap++];
423                 cnt--;
424         }
425 }
426
427 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
428 {
429         ushort *fb = *fbp;
430         int cnt_8copy = cnt >> 3;
431
432         cnt -= cnt_8copy << 3;
433         while (cnt_8copy > 0) {
434                 *fb++ = c;
435                 *fb++ = c;
436                 *fb++ = c;
437                 *fb++ = c;
438                 *fb++ = c;
439                 *fb++ = c;
440                 *fb++ = c;
441                 *fb++ = c;
442                 cnt_8copy--;
443         }
444         while (cnt > 0) {
445                 *fb++ = c;
446                 cnt--;
447         }
448         *fbp = fb;
449 }
450
451 /*
452  * Do not call this function directly, must be called from lcd_display_bitmap.
453  */
454 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
455                                     uchar *fb, int x_off, int y_off)
456 {
457         uchar *bmap;
458         ulong width, height;
459         ulong cnt, runlen;
460         int x, y;
461         int decode = 1;
462
463         width = get_unaligned_le32(&bmp->header.width);
464         height = get_unaligned_le32(&bmp->header.height);
465         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
466
467         x = 0;
468         y = height - 1;
469
470         while (decode) {
471                 if (bmap[0] == BMP_RLE8_ESCAPE) {
472                         switch (bmap[1]) {
473                         case BMP_RLE8_EOL:
474                                 /* end of line */
475                                 bmap += 2;
476                                 x = 0;
477                                 y--;
478                                 /* 16bpix, 2-byte per pixel, width should *2 */
479                                 fb -= (width * 2 + lcd_line_length);
480                                 break;
481                         case BMP_RLE8_EOBMP:
482                                 /* end of bitmap */
483                                 decode = 0;
484                                 break;
485                         case BMP_RLE8_DELTA:
486                                 /* delta run */
487                                 x += bmap[2];
488                                 y -= bmap[3];
489                                 /* 16bpix, 2-byte per pixel, x should *2 */
490                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
491                                         * lcd_line_length + (x + x_off) * 2);
492                                 bmap += 4;
493                                 break;
494                         default:
495                                 /* unencoded run */
496                                 runlen = bmap[1];
497                                 bmap += 2;
498                                 if (y < height) {
499                                         if (x < width) {
500                                                 if (x + runlen > width)
501                                                         cnt = width - x;
502                                                 else
503                                                         cnt = runlen;
504                                                 draw_unencoded_bitmap(
505                                                         (ushort **)&fb,
506                                                         bmap, cmap, cnt);
507                                         }
508                                         x += runlen;
509                                 }
510                                 bmap += runlen;
511                                 if (runlen & 1)
512                                         bmap++;
513                         }
514                 } else {
515                         /* encoded run */
516                         if (y < height) {
517                                 runlen = bmap[0];
518                                 if (x < width) {
519                                         /* aggregate the same code */
520                                         while (bmap[0] == 0xff &&
521                                                bmap[2] != BMP_RLE8_ESCAPE &&
522                                                bmap[1] == bmap[3]) {
523                                                 runlen += bmap[2];
524                                                 bmap += 2;
525                                         }
526                                         if (x + runlen > width)
527                                                 cnt = width - x;
528                                         else
529                                                 cnt = runlen;
530                                         draw_encoded_bitmap((ushort **)&fb,
531                                                 cmap[bmap[1]], cnt);
532                                 }
533                                 x += runlen;
534                         }
535                         bmap += 2;
536                 }
537         }
538 }
539 #endif
540
541 __weak void fb_put_byte(uchar **fb, uchar **from)
542 {
543         *(*fb)++ = *(*from)++;
544 }
545
546 #if defined(CONFIG_BMP_16BPP)
547 __weak void fb_put_word(uchar **fb, uchar **from)
548 {
549         *(*fb)++ = *(*from)++;
550         *(*fb)++ = *(*from)++;
551 }
552 #endif /* CONFIG_BMP_16BPP */
553
554 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
555 {
556         int i;
557         struct bmp_color_table_entry cte;
558         ushort *cmap = configuration_get_cmap();
559
560         for (i = 0; i < colors; ++i) {
561                 cte = bmp->color_table[i];
562                 *cmap = (((cte.red)   << 8) & 0xf800) |
563                         (((cte.green) << 3) & 0x07e0) |
564                         (((cte.blue)  >> 3) & 0x001f);
565                 cmap++;
566         }
567 }
568
569 int lcd_display_bitmap(ulong bmp_image, int x, int y)
570 {
571         ushort *cmap_base = NULL;
572         ushort i, j;
573         uchar *fb;
574         struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
575         uchar *bmap;
576         ushort padded_width;
577         unsigned long width, height, byte_width;
578         unsigned long pwidth = panel_info.vl_col;
579         unsigned colors, bpix, bmp_bpix;
580         int hdr_size;
581         struct bmp_color_table_entry *palette = bmp->color_table;
582
583         if (!bmp || !(bmp->header.signature[0] == 'B' &&
584                 bmp->header.signature[1] == 'M')) {
585                 printf("Error: no valid bmp image at %lx\n", bmp_image);
586
587                 return 1;
588         }
589
590         width = get_unaligned_le32(&bmp->header.width);
591         height = get_unaligned_le32(&bmp->header.height);
592         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
593         hdr_size = get_unaligned_le16(&bmp->header.size);
594         debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
595
596         colors = 1 << bmp_bpix;
597
598         bpix = NBITS(panel_info.vl_bpix);
599
600         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
601                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
602                         bpix, bmp_bpix);
603
604                 return 1;
605         }
606
607         /*
608          * We support displaying 8bpp BMPs on 16bpp LCDs
609          * and displaying 24bpp BMPs on 32bpp LCDs
610          * */
611         if (bpix != bmp_bpix &&
612             !(bmp_bpix == 8 && bpix == 16) &&
613             !(bmp_bpix == 24 && bpix == 32)) {
614                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
615                         bpix, get_unaligned_le16(&bmp->header.bit_count));
616                 return 1;
617         }
618
619         debug("Display-bmp: %d x %d  with %d colors, display %d\n",
620               (int)width, (int)height, (int)colors, 1 << bpix);
621
622         if (bmp_bpix == 8)
623                 lcd_set_cmap(bmp, colors);
624
625         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
626
627 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
628         splash_align_axis(&x, pwidth, width);
629         splash_align_axis(&y, panel_info.vl_row, height);
630 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
631
632         if ((x + width) > pwidth)
633                 width = pwidth - x;
634         if ((y + height) > panel_info.vl_row)
635                 height = panel_info.vl_row - y;
636
637         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
638         fb   = (uchar *)(lcd_base +
639                 (y + height - 1) * lcd_line_length + x * bpix / 8);
640
641         switch (bmp_bpix) {
642         case 1:
643         case 8: {
644                 cmap_base = configuration_get_cmap();
645 #ifdef CONFIG_LCD_BMP_RLE8
646                 u32 compression = get_unaligned_le32(&bmp->header.compression);
647                 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
648                 if (compression == BMP_BI_RLE8) {
649                         if (bpix != 16) {
650                                 /* TODO implement render code for bpix != 16 */
651                                 printf("Error: only support 16 bpix");
652                                 return 1;
653                         }
654                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
655                         break;
656                 }
657 #endif
658
659                 if (bpix != 16)
660                         byte_width = width;
661                 else
662                         byte_width = width * 2;
663
664                 for (i = 0; i < height; ++i) {
665                         WATCHDOG_RESET();
666                         for (j = 0; j < width; j++) {
667                                 if (bpix != 16) {
668                                         fb_put_byte(&fb, &bmap);
669                                 } else {
670                                         struct bmp_color_table_entry *entry;
671                                         uint val;
672
673                                         if (cmap_base) {
674                                                 val = cmap_base[*bmap];
675                                         } else {
676                                                 entry = &palette[*bmap];
677                                                 val = entry->blue >> 3 |
678                                                         entry->green >> 2 << 5 |
679                                                         entry->red >> 3 << 11;
680                                         }
681                                         *(uint16_t *)fb = val;
682                                         bmap++;
683                                         fb += sizeof(uint16_t) / sizeof(*fb);
684                                 }
685                         }
686                         bmap += (padded_width - width);
687                         fb -= byte_width + lcd_line_length;
688                 }
689                 break;
690         }
691 #if defined(CONFIG_BMP_16BPP)
692         case 16:
693                 for (i = 0; i < height; ++i) {
694                         WATCHDOG_RESET();
695                         for (j = 0; j < width; j++)
696                                 fb_put_word(&fb, &bmap);
697
698                         bmap += (padded_width - width) * 2;
699                         fb -= width * 2 + lcd_line_length;
700                 }
701                 break;
702 #endif /* CONFIG_BMP_16BPP */
703 #if defined(CONFIG_BMP_24BPP)
704         case 24:
705                 for (i = 0; i < height; ++i) {
706                         for (j = 0; j < width; j++) {
707                                 *(fb++) = *(bmap++);
708                                 *(fb++) = *(bmap++);
709                                 *(fb++) = *(bmap++);
710                                 *(fb++) = 0;
711                         }
712                         fb -= lcd_line_length + width * (bpix / 8);
713                 }
714                 break;
715 #endif /* CONFIG_BMP_24BPP */
716 #if defined(CONFIG_BMP_32BPP)
717         case 32:
718                 for (i = 0; i < height; ++i) {
719                         for (j = 0; j < width; j++) {
720                                 *(fb++) = *(bmap++);
721                                 *(fb++) = *(bmap++);
722                                 *(fb++) = *(bmap++);
723                                 *(fb++) = *(bmap++);
724                         }
725                         fb -= lcd_line_length + width * (bpix / 8);
726                 }
727                 break;
728 #endif /* CONFIG_BMP_32BPP */
729         default:
730                 break;
731         };
732
733         lcd_sync();
734         return 0;
735 }
736 #endif
737
738 static void lcd_logo(void)
739 {
740         lcd_logo_plot(0, 0);
741
742 #ifdef CONFIG_LCD_INFO
743         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
744         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
745         lcd_show_board_info();
746 #endif /* CONFIG_LCD_INFO */
747 }
748
749 #ifdef CONFIG_SPLASHIMAGE_GUARD
750 static int on_splashimage(const char *name, const char *value, enum env_op op,
751         int flags)
752 {
753         ulong addr;
754         int aligned;
755
756         if (op == env_op_delete)
757                 return 0;
758
759         addr = simple_strtoul(value, NULL, 16);
760         /* See README.displaying-bmps */
761         aligned = (addr % 4 == 2);
762         if (!aligned) {
763                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
764                 return -1;
765         }
766
767         return 0;
768 }
769
770 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
771 #endif
772
773 int lcd_get_pixel_width(void)
774 {
775         return panel_info.vl_col;
776 }
777
778 int lcd_get_pixel_height(void)
779 {
780         return panel_info.vl_row;
781 }