sunxi: USB download gadget cable detection
[oweals/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 <watchdog.h>
19 #include <asm/unaligned.h>
20 #include <splash.h>
21 #include <asm/io.h>
22 #include <asm/unaligned.h>
23 #include <video_font.h>
24
25 #ifdef CONFIG_LCD_LOGO
26 #include <bmp_logo.h>
27 #include <bmp_logo_data.h>
28 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
29 #error Default Color Map overlaps with Logo Color Map
30 #endif
31 #endif
32
33 #ifdef CONFIG_SANDBOX
34 #include <asm/sdl.h>
35 #endif
36
37 #ifndef CONFIG_LCD_ALIGNMENT
38 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
39 #endif
40
41 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
42         (LCD_BPP != LCD_COLOR32)
43 #error Unsupported LCD BPP.
44 #endif
45
46 DECLARE_GLOBAL_DATA_PTR;
47
48 static int lcd_init(void *lcdbase);
49 static void lcd_logo(void);
50 static void lcd_setfgcolor(int color);
51 static void lcd_setbgcolor(int color);
52
53 static int lcd_color_fg;
54 static int lcd_color_bg;
55 int lcd_line_length;
56 char lcd_is_enabled = 0;
57 static void *lcd_base;                  /* Start of framebuffer memory  */
58 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
59
60 /* Flush LCD activity to the caches */
61 void lcd_sync(void)
62 {
63         /*
64          * flush_dcache_range() is declared in common.h but it seems that some
65          * architectures do not actually implement it. Is there a way to find
66          * out whether it exists? For now, ARM is safe.
67          */
68 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
69         int line_length;
70
71         if (lcd_flush_dcache)
72                 flush_dcache_range((u32)lcd_base,
73                         (u32)(lcd_base + lcd_get_size(&line_length)));
74 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
75         static ulong last_sync;
76
77         if (get_timer(last_sync) > 10) {
78                 sandbox_sdl_sync(lcd_base);
79                 last_sync = get_timer(0);
80         }
81 #endif
82 }
83
84 void lcd_set_flush_dcache(int flush)
85 {
86         lcd_flush_dcache = (flush != 0);
87 }
88
89 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
90 {
91         lcd_putc(c);
92 }
93
94 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
95 {
96         lcd_puts(s);
97 }
98
99 /* Small utility to check that you got the colours right */
100 #ifdef LCD_TEST_PATTERN
101
102 #define N_BLK_VERT      2
103 #define N_BLK_HOR       3
104
105 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
106         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
107         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
108 };
109
110 static void test_pattern(void)
111 {
112         ushort v_max  = panel_info.vl_row;
113         ushort h_max  = panel_info.vl_col;
114         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
115         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
116         ushort v, h;
117         uchar *pix = (uchar *)lcd_base;
118
119         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
120                 h_max, v_max, h_step, v_step);
121
122         /* WARNING: Code silently assumes 8bit/pixel */
123         for (v = 0; v < v_max; ++v) {
124                 uchar iy = v / v_step;
125                 for (h = 0; h < h_max; ++h) {
126                         uchar ix = N_BLK_HOR * iy + h / h_step;
127                         *pix++ = test_colors[ix];
128                 }
129         }
130 }
131 #endif /* LCD_TEST_PATTERN */
132
133 /*
134  * With most lcd drivers the line length is set up
135  * by calculating it from panel_info parameters. Some
136  * drivers need to calculate the line length differently,
137  * so make the function weak to allow overriding it.
138  */
139 __weak int lcd_get_size(int *line_length)
140 {
141         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
142         return *line_length * panel_info.vl_row;
143 }
144
145 int drv_lcd_init(void)
146 {
147         struct stdio_dev lcddev;
148         int rc;
149
150         lcd_base = map_sysmem(gd->fb_base, 0);
151
152         lcd_init(lcd_base);
153
154         /* Device initialization */
155         memset(&lcddev, 0, sizeof(lcddev));
156
157         strcpy(lcddev.name, "lcd");
158         lcddev.ext   = 0;                       /* No extensions */
159         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
160         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
161         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
162
163         rc = stdio_register(&lcddev);
164
165         return (rc == 0) ? 1 : rc;
166 }
167
168 void lcd_clear(void)
169 {
170         short console_rows, console_cols;
171         int bg_color;
172         char *s;
173         ulong addr;
174         static int do_splash = 1;
175 #if LCD_BPP == LCD_COLOR8
176         /* Setting the palette */
177         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
178         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
179         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
180         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
181         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
182         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
183         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
184         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
185         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
186 #endif
187
188 #ifndef CONFIG_SYS_WHITE_ON_BLACK
189         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
190         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
191         bg_color = CONSOLE_COLOR_WHITE;
192 #else
193         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
194         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
195         bg_color = CONSOLE_COLOR_BLACK;
196 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
197
198 #ifdef  LCD_TEST_PATTERN
199         test_pattern();
200 #else
201         /* set framebuffer to background color */
202 #if (LCD_BPP != LCD_COLOR32)
203         memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
204 #else
205         u32 *ppix = lcd_base;
206         u32 i;
207         for (i = 0;
208            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
209            i++) {
210                 *ppix++ = bg_color;
211         }
212 #endif
213 #endif
214         /* Paint the logo and retrieve LCD base address */
215         debug("[LCD] Drawing the logo...\n");
216 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
217         console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT);
218         console_rows /= VIDEO_FONT_HEIGHT;
219 #else
220         console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT;
221 #endif
222         console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH;
223         lcd_init_console(lcd_base, console_rows, console_cols);
224         if (do_splash) {
225                 s = getenv("splashimage");
226                 if (s) {
227                         do_splash = 0;
228                         addr = simple_strtoul(s, NULL, 16);
229                         if (lcd_splash(addr) == 0) {
230                                 lcd_sync();
231                                 return;
232                         }
233                 }
234         }
235
236         lcd_logo();
237 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
238         addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
239         lcd_init_console((void *)addr, console_rows, console_cols);
240 #endif
241         lcd_sync();
242 }
243
244 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
245                         char *const argv[])
246 {
247         lcd_clear();
248         return 0;
249 }
250 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", "");
251
252 static int lcd_init(void *lcdbase)
253 {
254         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
255         lcd_ctrl_init(lcdbase);
256
257         /*
258          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
259          * the 'lcdbase' argument and uses custom lcd base address
260          * by setting up gd->fb_base. Check for this condition and fixup
261          * 'lcd_base' address.
262          */
263         if (map_to_sysmem(lcdbase) != gd->fb_base)
264                 lcd_base = map_sysmem(gd->fb_base, 0);
265
266         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
267
268         lcd_get_size(&lcd_line_length);
269         lcd_is_enabled = 1;
270         lcd_clear();
271         lcd_enable();
272
273         /* Initialize the console */
274         lcd_set_col(0);
275 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
276         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
277 #else
278         lcd_set_row(1); /* leave 1 blank line below logo */
279 #endif
280
281         return 0;
282 }
283
284 /*
285  * This is called early in the system initialization to grab memory
286  * for the LCD controller.
287  * Returns new address for monitor, after reserving LCD buffer memory
288  *
289  * Note that this is running from ROM, so no write access to global data.
290  */
291 ulong lcd_setmem(ulong addr)
292 {
293         ulong size;
294         int line_length;
295
296         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
297                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
298
299         size = lcd_get_size(&line_length);
300
301         /* Round up to nearest full page, or MMU section if defined */
302         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
303         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
304
305         /* Allocate pages for the frame buffer. */
306         addr -= size;
307
308         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
309               size >> 10, addr);
310
311         return addr;
312 }
313
314 static void lcd_setfgcolor(int color)
315 {
316         lcd_color_fg = color;
317 }
318
319 int lcd_getfgcolor(void)
320 {
321         return lcd_color_fg;
322 }
323
324 static void lcd_setbgcolor(int color)
325 {
326         lcd_color_bg = color;
327 }
328
329 int lcd_getbgcolor(void)
330 {
331         return lcd_color_bg;
332 }
333
334 #ifdef CONFIG_LCD_LOGO
335 __weak void lcd_logo_set_cmap(void)
336 {
337         int i;
338         ushort *cmap = configuration_get_cmap();
339
340         for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
341                 *cmap++ = bmp_logo_palette[i];
342 }
343
344 void lcd_logo_plot(int x, int y)
345 {
346         ushort i, j;
347         uchar *bmap = &bmp_logo_bitmap[0];
348         unsigned bpix = NBITS(panel_info.vl_bpix);
349         uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
350         ushort *fb16;
351
352         debug("Logo: width %d  height %d  colors %d\n",
353               BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
354
355         if (bpix < 12) {
356                 WATCHDOG_RESET();
357                 lcd_logo_set_cmap();
358                 WATCHDOG_RESET();
359
360                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
361                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
362                         bmap += BMP_LOGO_WIDTH;
363                         fb += panel_info.vl_col;
364                 }
365         }
366         else { /* true color mode */
367                 u16 col16;
368                 fb16 = (ushort *)fb;
369                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
370                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
371                                 col16 = bmp_logo_palette[(bmap[j]-16)];
372                                 fb16[j] =
373                                         ((col16 & 0x000F) << 1) |
374                                         ((col16 & 0x00F0) << 3) |
375                                         ((col16 & 0x0F00) << 4);
376                                 }
377                         bmap += BMP_LOGO_WIDTH;
378                         fb16 += panel_info.vl_col;
379                 }
380         }
381
382         WATCHDOG_RESET();
383         lcd_sync();
384 }
385 #else
386 static inline void lcd_logo_plot(int x, int y) {}
387 #endif /* CONFIG_LCD_LOGO */
388
389 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
390 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
391 #define BMP_ALIGN_CENTER        0x7FFF
392
393 static void splash_align_axis(int *axis, unsigned long panel_size,
394                                         unsigned long picture_size)
395 {
396         unsigned long panel_picture_delta = panel_size - picture_size;
397         unsigned long axis_alignment;
398
399         if (*axis == BMP_ALIGN_CENTER)
400                 axis_alignment = panel_picture_delta / 2;
401         else if (*axis < 0)
402                 axis_alignment = panel_picture_delta + *axis + 1;
403         else
404                 return;
405
406         *axis = max(0, (int)axis_alignment);
407 }
408 #endif
409
410 #ifdef CONFIG_LCD_BMP_RLE8
411 #define BMP_RLE8_ESCAPE         0
412 #define BMP_RLE8_EOL            0
413 #define BMP_RLE8_EOBMP          1
414 #define BMP_RLE8_DELTA          2
415
416 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
417                                   int cnt)
418 {
419         while (cnt > 0) {
420                 *(*fbp)++ = cmap[*bmap++];
421                 cnt--;
422         }
423 }
424
425 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
426 {
427         ushort *fb = *fbp;
428         int cnt_8copy = cnt >> 3;
429
430         cnt -= cnt_8copy << 3;
431         while (cnt_8copy > 0) {
432                 *fb++ = c;
433                 *fb++ = c;
434                 *fb++ = c;
435                 *fb++ = c;
436                 *fb++ = c;
437                 *fb++ = c;
438                 *fb++ = c;
439                 *fb++ = c;
440                 cnt_8copy--;
441         }
442         while (cnt > 0) {
443                 *fb++ = c;
444                 cnt--;
445         }
446         *fbp = fb;
447 }
448
449 /*
450  * Do not call this function directly, must be called from lcd_display_bitmap.
451  */
452 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
453                                     int x_off, int y_off)
454 {
455         uchar *bmap;
456         ulong width, height;
457         ulong cnt, runlen;
458         int x, y;
459         int decode = 1;
460
461         width = get_unaligned_le32(&bmp->header.width);
462         height = get_unaligned_le32(&bmp->header.height);
463         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
464
465         x = 0;
466         y = height - 1;
467
468         while (decode) {
469                 if (bmap[0] == BMP_RLE8_ESCAPE) {
470                         switch (bmap[1]) {
471                         case BMP_RLE8_EOL:
472                                 /* end of line */
473                                 bmap += 2;
474                                 x = 0;
475                                 y--;
476                                 /* 16bpix, 2-byte per pixel, width should *2 */
477                                 fb -= (width * 2 + lcd_line_length);
478                                 break;
479                         case BMP_RLE8_EOBMP:
480                                 /* end of bitmap */
481                                 decode = 0;
482                                 break;
483                         case BMP_RLE8_DELTA:
484                                 /* delta run */
485                                 x += bmap[2];
486                                 y -= bmap[3];
487                                 /* 16bpix, 2-byte per pixel, x should *2 */
488                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
489                                         * lcd_line_length + (x + x_off) * 2);
490                                 bmap += 4;
491                                 break;
492                         default:
493                                 /* unencoded run */
494                                 runlen = bmap[1];
495                                 bmap += 2;
496                                 if (y < height) {
497                                         if (x < width) {
498                                                 if (x + runlen > width)
499                                                         cnt = width - x;
500                                                 else
501                                                         cnt = runlen;
502                                                 draw_unencoded_bitmap(
503                                                         (ushort **)&fb,
504                                                         bmap, cmap, cnt);
505                                         }
506                                         x += runlen;
507                                 }
508                                 bmap += runlen;
509                                 if (runlen & 1)
510                                         bmap++;
511                         }
512                 } else {
513                         /* encoded run */
514                         if (y < height) {
515                                 runlen = bmap[0];
516                                 if (x < width) {
517                                         /* aggregate the same code */
518                                         while (bmap[0] == 0xff &&
519                                                bmap[2] != BMP_RLE8_ESCAPE &&
520                                                bmap[1] == bmap[3]) {
521                                                 runlen += bmap[2];
522                                                 bmap += 2;
523                                         }
524                                         if (x + runlen > width)
525                                                 cnt = width - x;
526                                         else
527                                                 cnt = runlen;
528                                         draw_encoded_bitmap((ushort **)&fb,
529                                                 cmap[bmap[1]], cnt);
530                                 }
531                                 x += runlen;
532                         }
533                         bmap += 2;
534                 }
535         }
536 }
537 #endif
538
539 __weak void fb_put_byte(uchar **fb, uchar **from)
540 {
541         *(*fb)++ = *(*from)++;
542 }
543
544 #if defined(CONFIG_BMP_16BPP)
545 __weak void fb_put_word(uchar **fb, uchar **from)
546 {
547         *(*fb)++ = *(*from)++;
548         *(*fb)++ = *(*from)++;
549 }
550 #endif /* CONFIG_BMP_16BPP */
551
552 __weak void lcd_set_cmap(bmp_image_t *bmp, unsigned colors)
553 {
554         int i;
555         bmp_color_table_entry_t cte;
556         ushort *cmap = configuration_get_cmap();
557
558         for (i = 0; i < colors; ++i) {
559                 cte = bmp->color_table[i];
560                 *cmap = (((cte.red)   << 8) & 0xf800) |
561                         (((cte.green) << 3) & 0x07e0) |
562                         (((cte.blue)  >> 3) & 0x001f);
563 #if defined(CONFIG_MPC823)
564                 cmap--;
565 #else
566                 cmap++;
567 #endif
568         }
569 }
570
571 int lcd_display_bitmap(ulong bmp_image, int x, int y)
572 {
573         ushort *cmap_base = NULL;
574         ushort i, j;
575         uchar *fb;
576         bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
577         uchar *bmap;
578         ushort padded_width;
579         unsigned long width, height, byte_width;
580         unsigned long pwidth = panel_info.vl_col;
581         unsigned colors, bpix, bmp_bpix;
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
594         colors = 1 << bmp_bpix;
595
596         bpix = NBITS(panel_info.vl_bpix);
597
598         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
599                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
600                         bpix, bmp_bpix);
601
602                 return 1;
603         }
604
605         /*
606          * We support displaying 8bpp BMPs on 16bpp LCDs
607          * and displaying 24bpp BMPs on 32bpp LCDs
608          * */
609         if (bpix != bmp_bpix &&
610             !(bmp_bpix == 8 && bpix == 16) &&
611             !(bmp_bpix == 24 && bpix == 32)) {
612                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
613                         bpix, get_unaligned_le16(&bmp->header.bit_count));
614                 return 1;
615         }
616
617         debug("Display-bmp: %d x %d  with %d colors\n",
618                 (int)width, (int)height, (int)colors);
619
620         if (bmp_bpix == 8)
621                 lcd_set_cmap(bmp, colors);
622
623         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
624
625 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
626         splash_align_axis(&x, pwidth, width);
627         splash_align_axis(&y, panel_info.vl_row, height);
628 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
629
630         if ((x + width) > pwidth)
631                 width = pwidth - x;
632         if ((y + height) > panel_info.vl_row)
633                 height = panel_info.vl_row - y;
634
635         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
636         fb   = (uchar *)(lcd_base +
637                 (y + height - 1) * lcd_line_length + x * bpix / 8);
638
639         switch (bmp_bpix) {
640         case 1:
641         case 8: {
642                 cmap_base = configuration_get_cmap();
643 #ifdef CONFIG_LCD_BMP_RLE8
644                 u32 compression = get_unaligned_le32(&bmp->header.compression);
645                 if (compression == BMP_BI_RLE8) {
646                         if (bpix != 16) {
647                                 /* TODO implement render code for bpix != 16 */
648                                 printf("Error: only support 16 bpix");
649                                 return 1;
650                         }
651                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
652                         break;
653                 }
654 #endif
655
656                 if (bpix != 16)
657                         byte_width = width;
658                 else
659                         byte_width = width * 2;
660
661                 for (i = 0; i < height; ++i) {
662                         WATCHDOG_RESET();
663                         for (j = 0; j < width; j++) {
664                                 if (bpix != 16) {
665                                         fb_put_byte(&fb, &bmap);
666                                 } else {
667                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
668                                         fb += sizeof(uint16_t) / sizeof(*fb);
669                                 }
670                         }
671                         bmap += (padded_width - width);
672                         fb -= byte_width + lcd_line_length;
673                 }
674                 break;
675         }
676 #if defined(CONFIG_BMP_16BPP)
677         case 16:
678                 for (i = 0; i < height; ++i) {
679                         WATCHDOG_RESET();
680                         for (j = 0; j < width; j++)
681                                 fb_put_word(&fb, &bmap);
682
683                         bmap += (padded_width - width) * 2;
684                         fb -= width * 2 + lcd_line_length;
685                 }
686                 break;
687 #endif /* CONFIG_BMP_16BPP */
688 #if defined(CONFIG_BMP_24BMP)
689         case 24:
690                 for (i = 0; i < height; ++i) {
691                         for (j = 0; j < width; j++) {
692                                 *(fb++) = *(bmap++);
693                                 *(fb++) = *(bmap++);
694                                 *(fb++) = *(bmap++);
695                                 *(fb++) = 0;
696                         }
697                         fb -= lcd_line_length + width * (bpix / 8);
698                 }
699                 break;
700 #endif /* CONFIG_BMP_24BMP */
701 #if defined(CONFIG_BMP_32BPP)
702         case 32:
703                 for (i = 0; i < height; ++i) {
704                         for (j = 0; j < width; j++) {
705                                 *(fb++) = *(bmap++);
706                                 *(fb++) = *(bmap++);
707                                 *(fb++) = *(bmap++);
708                                 *(fb++) = *(bmap++);
709                         }
710                         fb -= lcd_line_length + width * (bpix / 8);
711                 }
712                 break;
713 #endif /* CONFIG_BMP_32BPP */
714         default:
715                 break;
716         };
717
718         lcd_sync();
719         return 0;
720 }
721 #endif
722
723 static void lcd_logo(void)
724 {
725         lcd_logo_plot(0, 0);
726
727 #ifdef CONFIG_LCD_INFO
728         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
729         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
730         lcd_show_board_info();
731 #endif /* CONFIG_LCD_INFO */
732 }
733
734 #ifdef CONFIG_SPLASHIMAGE_GUARD
735 static int on_splashimage(const char *name, const char *value, enum env_op op,
736         int flags)
737 {
738         ulong addr;
739         int aligned;
740
741         if (op == env_op_delete)
742                 return 0;
743
744         addr = simple_strtoul(value, NULL, 16);
745         /* See README.displaying-bmps */
746         aligned = (addr % 4 == 2);
747         if (!aligned) {
748                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
749                 return -1;
750         }
751
752         return 0;
753 }
754
755 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
756 #endif
757
758 int lcd_get_pixel_width(void)
759 {
760         return panel_info.vl_col;
761 }
762
763 int lcd_get_pixel_height(void)
764 {
765         return panel_info.vl_row;
766 }