lcd: atmel: introduce lcd_logo_set_cmap
[platform/kernel/u-boot.git] / common / lcd.c
1 /*
2  * Common LCD routines for supported CPUs
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 /************************************************************************/
11 /* ** HEADER FILES                                                      */
12 /************************************************************************/
13
14 /* #define DEBUG */
15
16 #include <config.h>
17 #include <common.h>
18 #include <command.h>
19 #include <stdarg.h>
20 #include <search.h>
21 #include <env_callback.h>
22 #include <linux/types.h>
23 #include <stdio_dev.h>
24 #if defined(CONFIG_POST)
25 #include <post.h>
26 #endif
27 #include <lcd.h>
28 #include <watchdog.h>
29 #include <asm/unaligned.h>
30 #include <splash.h>
31 #include <asm/io.h>
32 #include <asm/unaligned.h>
33 #include <fdt_support.h>
34
35 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
36         defined(CONFIG_CPU_MONAHANS)
37 #include <asm/byteorder.h>
38 #endif
39
40 #if defined(CONFIG_MPC823)
41 #include <lcdvideo.h>
42 #endif
43
44 #if defined(CONFIG_ATMEL_LCD)
45 #include <atmel_lcdc.h>
46 #endif
47
48 #if defined(CONFIG_LCD_DT_SIMPLEFB)
49 #include <libfdt.h>
50 #endif
51
52 /************************************************************************/
53 /* ** FONT DATA                                                         */
54 /************************************************************************/
55 #include <video_font.h>         /* Get font data, width and height      */
56
57 /************************************************************************/
58 /* ** LOGO DATA                                                         */
59 /************************************************************************/
60 #ifdef CONFIG_LCD_LOGO
61 # include <bmp_logo.h>          /* Get logo data, width and height      */
62 # include <bmp_logo_data.h>
63 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
64 #  error Default Color Map overlaps with Logo Color Map
65 # endif
66 #endif
67
68 #ifdef CONFIG_SANDBOX
69 #include <asm/sdl.h>
70 #endif
71
72 #ifndef CONFIG_LCD_ALIGNMENT
73 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
74 #endif
75
76 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
77         (LCD_BPP != LCD_COLOR32)
78 # error Unsupported LCD BPP.
79 #endif
80
81 DECLARE_GLOBAL_DATA_PTR;
82
83 static int lcd_init(void *lcdbase);
84
85 static void *lcd_logo(void);
86
87 static void lcd_setfgcolor(int color);
88 static void lcd_setbgcolor(int color);
89
90 static int lcd_color_fg;
91 static int lcd_color_bg;
92 int lcd_line_length;
93
94 char lcd_is_enabled = 0;
95
96 static void *lcd_base;                  /* Start of framebuffer memory  */
97
98 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
99
100 /************************************************************************/
101
102 /* Flush LCD activity to the caches */
103 void lcd_sync(void)
104 {
105         /*
106          * flush_dcache_range() is declared in common.h but it seems that some
107          * architectures do not actually implement it. Is there a way to find
108          * out whether it exists? For now, ARM is safe.
109          */
110 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
111         int line_length;
112
113         if (lcd_flush_dcache)
114                 flush_dcache_range((u32)lcd_base,
115                         (u32)(lcd_base + lcd_get_size(&line_length)));
116 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
117         static ulong last_sync;
118
119         if (get_timer(last_sync) > 10) {
120                 sandbox_sdl_sync(lcd_base);
121                 last_sync = get_timer(0);
122         }
123 #endif
124 }
125
126 void lcd_set_flush_dcache(int flush)
127 {
128         lcd_flush_dcache = (flush != 0);
129 }
130
131 /*----------------------------------------------------------------------*/
132
133 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
134 {
135         lcd_putc(c);
136 }
137
138 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
139 {
140         lcd_puts(s);
141 }
142
143 /************************************************************************/
144 /**  Small utility to check that you got the colours right              */
145 /************************************************************************/
146 #ifdef LCD_TEST_PATTERN
147
148 #define N_BLK_VERT      2
149 #define N_BLK_HOR       3
150
151 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
152         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
153         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
154 };
155
156 static void test_pattern(void)
157 {
158         ushort v_max  = panel_info.vl_row;
159         ushort h_max  = panel_info.vl_col;
160         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
161         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
162         ushort v, h;
163         uchar *pix = (uchar *)lcd_base;
164
165         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
166                 h_max, v_max, h_step, v_step);
167
168         /* WARNING: Code silently assumes 8bit/pixel */
169         for (v = 0; v < v_max; ++v) {
170                 uchar iy = v / v_step;
171                 for (h = 0; h < h_max; ++h) {
172                         uchar ix = N_BLK_HOR * iy + h / h_step;
173                         *pix++ = test_colors[ix];
174                 }
175         }
176 }
177 #endif /* LCD_TEST_PATTERN */
178
179
180 /************************************************************************/
181 /* ** GENERIC Initialization Routines                                   */
182 /************************************************************************/
183 /*
184  * With most lcd drivers the line length is set up
185  * by calculating it from panel_info parameters. Some
186  * drivers need to calculate the line length differently,
187  * so make the function weak to allow overriding it.
188  */
189 __weak int lcd_get_size(int *line_length)
190 {
191         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
192         return *line_length * panel_info.vl_row;
193 }
194
195 int drv_lcd_init(void)
196 {
197         struct stdio_dev lcddev;
198         int rc;
199
200         lcd_base = map_sysmem(gd->fb_base, 0);
201
202         lcd_init(lcd_base);             /* LCD initialization */
203
204         /* Device initialization */
205         memset(&lcddev, 0, sizeof(lcddev));
206
207         strcpy(lcddev.name, "lcd");
208         lcddev.ext   = 0;                       /* No extensions */
209         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
210         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
211         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
212
213         rc = stdio_register(&lcddev);
214
215         return (rc == 0) ? 1 : rc;
216 }
217
218 /*----------------------------------------------------------------------*/
219 void lcd_clear(void)
220 {
221         short console_rows, console_cols;
222         int bg_color;
223 #if LCD_BPP == LCD_COLOR8
224         /* Setting the palette */
225         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
226         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
227         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
228         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
229         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
230         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
231         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
232         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
233         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
234 #endif
235
236 #ifndef CONFIG_SYS_WHITE_ON_BLACK
237         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
238         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
239         bg_color = CONSOLE_COLOR_WHITE;
240 #else
241         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
242         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
243         bg_color = CONSOLE_COLOR_BLACK;
244 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
245
246 #ifdef  LCD_TEST_PATTERN
247         test_pattern();
248 #else
249         /* set framebuffer to background color */
250 #if (LCD_BPP != LCD_COLOR32)
251         memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
252 #else
253         u32 *ppix = lcd_base;
254         u32 i;
255         for (i = 0;
256            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
257            i++) {
258                 *ppix++ = bg_color;
259         }
260 #endif
261 #endif
262         /* Paint the logo and retrieve LCD base address */
263         debug("[LCD] Drawing the logo...\n");
264 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
265         console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT);
266         console_rows /= VIDEO_FONT_HEIGHT;
267 #else
268         console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT;
269 #endif
270         console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH;
271         lcd_init_console(lcd_base, console_rows, console_cols);
272         lcd_init_console(lcd_logo(), console_rows, console_cols);
273         lcd_sync();
274 }
275
276 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
277                         char *const argv[])
278 {
279         lcd_clear();
280         return 0;
281 }
282
283 U_BOOT_CMD(
284         cls,    1,      1,      do_lcd_clear,
285         "clear screen",
286         ""
287 );
288
289 /*----------------------------------------------------------------------*/
290
291 static int lcd_init(void *lcdbase)
292 {
293         /* Initialize the lcd controller */
294         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
295
296         lcd_ctrl_init(lcdbase);
297
298         /*
299          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
300          * the 'lcdbase' argument and uses custom lcd base address
301          * by setting up gd->fb_base. Check for this condition and fixup
302          * 'lcd_base' address.
303          */
304         if (map_to_sysmem(lcdbase) != gd->fb_base)
305                 lcd_base = map_sysmem(gd->fb_base, 0);
306
307         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
308
309         lcd_get_size(&lcd_line_length);
310         lcd_is_enabled = 1;
311         lcd_clear();
312         lcd_enable();
313
314         /* Initialize the console */
315         lcd_set_col(0);
316 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
317         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
318 #else
319         lcd_set_row(1); /* leave 1 blank line below logo */
320 #endif
321
322         return 0;
323 }
324
325
326 /************************************************************************/
327 /* ** ROM capable initialization part - needed to reserve FB memory     */
328 /************************************************************************/
329 /*
330  * This is called early in the system initialization to grab memory
331  * for the LCD controller.
332  * Returns new address for monitor, after reserving LCD buffer memory
333  *
334  * Note that this is running from ROM, so no write access to global data.
335  */
336 ulong lcd_setmem(ulong addr)
337 {
338         ulong size;
339         int line_length;
340
341         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
342                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
343
344         size = lcd_get_size(&line_length);
345
346         /* Round up to nearest full page, or MMU section if defined */
347         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
348         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
349
350         /* Allocate pages for the frame buffer. */
351         addr -= size;
352
353         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
354               size >> 10, addr);
355
356         return addr;
357 }
358
359 /*----------------------------------------------------------------------*/
360
361 static void lcd_setfgcolor(int color)
362 {
363         lcd_color_fg = color;
364 }
365
366 int lcd_getfgcolor(void)
367 {
368         return lcd_color_fg;
369 }
370
371 /*----------------------------------------------------------------------*/
372
373 static void lcd_setbgcolor(int color)
374 {
375         lcd_color_bg = color;
376 }
377
378 int lcd_getbgcolor(void)
379 {
380         return lcd_color_bg;
381 }
382
383 /************************************************************************/
384 /* ** Chipset depending Bitmap / Logo stuff...                          */
385 /************************************************************************/
386
387 #ifdef CONFIG_LCD_LOGO
388 __weak void lcd_logo_set_cmap(void)
389 {
390 }
391
392 void bitmap_plot(int x, int y)
393 {
394         ushort *cmap = (ushort *)bmp_logo_palette;
395         ushort i, j;
396         uchar *bmap;
397         uchar *fb;
398         ushort *fb16;
399 #if defined(CONFIG_MPC823)
400         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
401         cpm8xx_t *cp = &(immr->im_cpm);
402 #endif
403         unsigned bpix = NBITS(panel_info.vl_bpix);
404
405         debug("Logo: width %d  height %d  colors %d  cmap %d\n",
406                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
407                 ARRAY_SIZE(bmp_logo_palette));
408
409         bmap = &bmp_logo_bitmap[0];
410         fb   = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
411
412         if (bpix < 12) {
413                 /* Leave room for default color map
414                  * default case: generic system with no cmap (most likely 16bpp)
415                  * cmap was set to the source palette, so no change is done.
416                  * This avoids even more ifdefs in the next stanza
417                  */
418 #if defined(CONFIG_MPC823)
419                 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
420 #else
421                 cmap = configuration_get_cmap();
422 #endif
423
424                 WATCHDOG_RESET();
425
426                 /* Set color map */
427 #ifdef CONFIG_ATMEL_LCD
428                 lcd_logo_set_cmap();
429 #else
430                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
431                         ushort colreg = bmp_logo_palette[i];
432                         *cmap++ = colreg;
433                 }
434 #endif
435
436                 WATCHDOG_RESET();
437
438                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
439                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
440                         bmap += BMP_LOGO_WIDTH;
441                         fb += panel_info.vl_col;
442                 }
443         }
444         else { /* true color mode */
445                 u16 col16;
446                 fb16 = (ushort *)fb;
447                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
448                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
449                                 col16 = bmp_logo_palette[(bmap[j]-16)];
450                                 fb16[j] =
451                                         ((col16 & 0x000F) << 1) |
452                                         ((col16 & 0x00F0) << 3) |
453                                         ((col16 & 0x0F00) << 4);
454                                 }
455                         bmap += BMP_LOGO_WIDTH;
456                         fb16 += panel_info.vl_col;
457                 }
458         }
459
460         WATCHDOG_RESET();
461         lcd_sync();
462 }
463 #else
464 static inline void bitmap_plot(int x, int y) {}
465 #endif /* CONFIG_LCD_LOGO */
466
467 /*----------------------------------------------------------------------*/
468 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
469 /*
470  * Display the BMP file located at address bmp_image.
471  * Only uncompressed.
472  */
473
474 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
475 #define BMP_ALIGN_CENTER        0x7FFF
476
477 static void splash_align_axis(int *axis, unsigned long panel_size,
478                                         unsigned long picture_size)
479 {
480         unsigned long panel_picture_delta = panel_size - picture_size;
481         unsigned long axis_alignment;
482
483         if (*axis == BMP_ALIGN_CENTER)
484                 axis_alignment = panel_picture_delta / 2;
485         else if (*axis < 0)
486                 axis_alignment = panel_picture_delta + *axis + 1;
487         else
488                 return;
489
490         *axis = max(0, (int)axis_alignment);
491 }
492 #endif
493
494
495 #ifdef CONFIG_LCD_BMP_RLE8
496
497 #define BMP_RLE8_ESCAPE         0
498 #define BMP_RLE8_EOL            0
499 #define BMP_RLE8_EOBMP          1
500 #define BMP_RLE8_DELTA          2
501
502 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
503                                   int cnt)
504 {
505         while (cnt > 0) {
506                 *(*fbp)++ = cmap[*bmap++];
507                 cnt--;
508         }
509 }
510
511 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
512 {
513         ushort *fb = *fbp;
514         int cnt_8copy = cnt >> 3;
515
516         cnt -= cnt_8copy << 3;
517         while (cnt_8copy > 0) {
518                 *fb++ = c;
519                 *fb++ = c;
520                 *fb++ = c;
521                 *fb++ = c;
522                 *fb++ = c;
523                 *fb++ = c;
524                 *fb++ = c;
525                 *fb++ = c;
526                 cnt_8copy--;
527         }
528         while (cnt > 0) {
529                 *fb++ = c;
530                 cnt--;
531         }
532         *fbp = fb;
533 }
534
535 /*
536  * Do not call this function directly, must be called from lcd_display_bitmap.
537  */
538 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
539                                     int x_off, int y_off)
540 {
541         uchar *bmap;
542         ulong width, height;
543         ulong cnt, runlen;
544         int x, y;
545         int decode = 1;
546
547         width = get_unaligned_le32(&bmp->header.width);
548         height = get_unaligned_le32(&bmp->header.height);
549         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
550
551         x = 0;
552         y = height - 1;
553
554         while (decode) {
555                 if (bmap[0] == BMP_RLE8_ESCAPE) {
556                         switch (bmap[1]) {
557                         case BMP_RLE8_EOL:
558                                 /* end of line */
559                                 bmap += 2;
560                                 x = 0;
561                                 y--;
562                                 /* 16bpix, 2-byte per pixel, width should *2 */
563                                 fb -= (width * 2 + lcd_line_length);
564                                 break;
565                         case BMP_RLE8_EOBMP:
566                                 /* end of bitmap */
567                                 decode = 0;
568                                 break;
569                         case BMP_RLE8_DELTA:
570                                 /* delta run */
571                                 x += bmap[2];
572                                 y -= bmap[3];
573                                 /* 16bpix, 2-byte per pixel, x should *2 */
574                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
575                                         * lcd_line_length + (x + x_off) * 2);
576                                 bmap += 4;
577                                 break;
578                         default:
579                                 /* unencoded run */
580                                 runlen = bmap[1];
581                                 bmap += 2;
582                                 if (y < height) {
583                                         if (x < width) {
584                                                 if (x + runlen > width)
585                                                         cnt = width - x;
586                                                 else
587                                                         cnt = runlen;
588                                                 draw_unencoded_bitmap(
589                                                         (ushort **)&fb,
590                                                         bmap, cmap, cnt);
591                                         }
592                                         x += runlen;
593                                 }
594                                 bmap += runlen;
595                                 if (runlen & 1)
596                                         bmap++;
597                         }
598                 } else {
599                         /* encoded run */
600                         if (y < height) {
601                                 runlen = bmap[0];
602                                 if (x < width) {
603                                         /* aggregate the same code */
604                                         while (bmap[0] == 0xff &&
605                                                bmap[2] != BMP_RLE8_ESCAPE &&
606                                                bmap[1] == bmap[3]) {
607                                                 runlen += bmap[2];
608                                                 bmap += 2;
609                                         }
610                                         if (x + runlen > width)
611                                                 cnt = width - x;
612                                         else
613                                                 cnt = runlen;
614                                         draw_encoded_bitmap((ushort **)&fb,
615                                                 cmap[bmap[1]], cnt);
616                                 }
617                                 x += runlen;
618                         }
619                         bmap += 2;
620                 }
621         }
622 }
623 #endif
624
625 __weak void fb_put_byte(uchar **fb, uchar **from)
626 {
627         *(*fb)++ = *(*from)++;
628 }
629
630 #if defined(CONFIG_BMP_16BPP)
631 __weak void fb_put_word(uchar **fb, uchar **from)
632 {
633         *(*fb)++ = *(*from)++;
634         *(*fb)++ = *(*from)++;
635 }
636 #endif /* CONFIG_BMP_16BPP */
637
638 int lcd_display_bitmap(ulong bmp_image, int x, int y)
639 {
640         ushort *cmap = NULL;
641         ushort *cmap_base = NULL;
642         ushort i, j;
643         uchar *fb;
644         bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
645         uchar *bmap;
646         ushort padded_width;
647         unsigned long width, height, byte_width;
648         unsigned long pwidth = panel_info.vl_col;
649         unsigned colors, bpix, bmp_bpix;
650
651         if (!bmp || !(bmp->header.signature[0] == 'B' &&
652                 bmp->header.signature[1] == 'M')) {
653                 printf("Error: no valid bmp image at %lx\n", bmp_image);
654
655                 return 1;
656         }
657
658         width = get_unaligned_le32(&bmp->header.width);
659         height = get_unaligned_le32(&bmp->header.height);
660         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
661
662         colors = 1 << bmp_bpix;
663
664         bpix = NBITS(panel_info.vl_bpix);
665
666         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
667                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
668                         bpix, bmp_bpix);
669
670                 return 1;
671         }
672
673         /*
674          * We support displaying 8bpp BMPs on 16bpp LCDs
675          * and displaying 24bpp BMPs on 32bpp LCDs
676          * */
677         if (bpix != bmp_bpix &&
678             !(bmp_bpix == 8 && bpix == 16) &&
679             !(bmp_bpix == 24 && bpix == 32)) {
680                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
681                         bpix, get_unaligned_le16(&bmp->header.bit_count));
682                 return 1;
683         }
684
685         debug("Display-bmp: %d x %d  with %d colors\n",
686                 (int)width, (int)height, (int)colors);
687
688         if (bmp_bpix == 8) {
689                 cmap = configuration_get_cmap();
690                 cmap_base = cmap;
691
692                 /* Set color map */
693                 for (i = 0; i < colors; ++i) {
694                         bmp_color_table_entry_t cte = bmp->color_table[i];
695 #if !defined(CONFIG_ATMEL_LCD)
696                         ushort colreg =
697                                 ( ((cte.red)   << 8) & 0xf800) |
698                                 ( ((cte.green) << 3) & 0x07e0) |
699                                 ( ((cte.blue)  >> 3) & 0x001f) ;
700                         *cmap = colreg;
701 #if defined(CONFIG_MPC823)
702                         cmap--;
703 #else
704                         cmap++;
705 #endif
706 #else /* CONFIG_ATMEL_LCD */
707                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
708 #endif
709                 }
710         }
711
712         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
713
714 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
715         splash_align_axis(&x, pwidth, width);
716         splash_align_axis(&y, panel_info.vl_row, height);
717 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
718
719         if ((x + width) > pwidth)
720                 width = pwidth - x;
721         if ((y + height) > panel_info.vl_row)
722                 height = panel_info.vl_row - y;
723
724         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
725         fb   = (uchar *)(lcd_base +
726                 (y + height - 1) * lcd_line_length + x * bpix / 8);
727
728         switch (bmp_bpix) {
729         case 1: /* pass through */
730         case 8: {
731 #ifdef CONFIG_LCD_BMP_RLE8
732                 u32 compression = get_unaligned_le32(&bmp->header.compression);
733                 if (compression == BMP_BI_RLE8) {
734                         if (bpix != 16) {
735                                 /* TODO implement render code for bpix != 16 */
736                                 printf("Error: only support 16 bpix");
737                                 return 1;
738                         }
739                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
740                         break;
741                 }
742 #endif
743
744                 if (bpix != 16)
745                         byte_width = width;
746                 else
747                         byte_width = width * 2;
748
749                 for (i = 0; i < height; ++i) {
750                         WATCHDOG_RESET();
751                         for (j = 0; j < width; j++) {
752                                 if (bpix != 16) {
753                                         fb_put_byte(&fb, &bmap);
754                                 } else {
755                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
756                                         fb += sizeof(uint16_t) / sizeof(*fb);
757                                 }
758                         }
759                         bmap += (padded_width - width);
760                         fb -= byte_width + lcd_line_length;
761                 }
762                 break;
763         }
764 #if defined(CONFIG_BMP_16BPP)
765         case 16:
766                 for (i = 0; i < height; ++i) {
767                         WATCHDOG_RESET();
768                         for (j = 0; j < width; j++)
769                                 fb_put_word(&fb, &bmap);
770
771                         bmap += (padded_width - width) * 2;
772                         fb -= width * 2 + lcd_line_length;
773                 }
774                 break;
775 #endif /* CONFIG_BMP_16BPP */
776 #if defined(CONFIG_BMP_24BMP)
777         case 24:
778                 for (i = 0; i < height; ++i) {
779                         for (j = 0; j < width; j++) {
780                                 *(fb++) = *(bmap++);
781                                 *(fb++) = *(bmap++);
782                                 *(fb++) = *(bmap++);
783                                 *(fb++) = 0;
784                         }
785                         fb -= lcd_line_length + width * (bpix / 8);
786                 }
787                 break;
788 #endif /* CONFIG_BMP_24BMP */
789 #if defined(CONFIG_BMP_32BPP)
790         case 32:
791                 for (i = 0; i < height; ++i) {
792                         for (j = 0; j < width; j++) {
793                                 *(fb++) = *(bmap++);
794                                 *(fb++) = *(bmap++);
795                                 *(fb++) = *(bmap++);
796                                 *(fb++) = *(bmap++);
797                         }
798                         fb -= lcd_line_length + width * (bpix / 8);
799                 }
800                 break;
801 #endif /* CONFIG_BMP_32BPP */
802         default:
803                 break;
804         };
805
806         lcd_sync();
807         return 0;
808 }
809 #endif
810
811 static void *lcd_logo(void)
812 {
813 #ifdef CONFIG_SPLASH_SCREEN
814         char *s;
815         ulong addr;
816         static int do_splash = 1;
817
818         if (do_splash && (s = getenv("splashimage")) != NULL) {
819                 int x = 0, y = 0;
820                 do_splash = 0;
821
822                 if (splash_screen_prepare())
823                         return (void *)lcd_base;
824
825                 addr = simple_strtoul (s, NULL, 16);
826
827                 splash_get_pos(&x, &y);
828
829                 if (bmp_display(addr, x, y) == 0)
830                         return (void *)lcd_base;
831         }
832 #endif /* CONFIG_SPLASH_SCREEN */
833
834         bitmap_plot(0, 0);
835
836 #ifdef CONFIG_LCD_INFO
837         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
838         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
839         lcd_show_board_info();
840 #endif /* CONFIG_LCD_INFO */
841
842 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
843         return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
844 #else
845         return (void *)lcd_base;
846 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
847 }
848
849 #ifdef CONFIG_SPLASHIMAGE_GUARD
850 static int on_splashimage(const char *name, const char *value, enum env_op op,
851         int flags)
852 {
853         ulong addr;
854         int aligned;
855
856         if (op == env_op_delete)
857                 return 0;
858
859         addr = simple_strtoul(value, NULL, 16);
860         /* See README.displaying-bmps */
861         aligned = (addr % 4 == 2);
862         if (!aligned) {
863                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
864                 return -1;
865         }
866
867         return 0;
868 }
869
870 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
871 #endif
872
873 int lcd_get_pixel_width(void)
874 {
875         return panel_info.vl_col;
876 }
877
878 int lcd_get_pixel_height(void)
879 {
880         return panel_info.vl_row;
881 }
882
883 #if defined(CONFIG_LCD_DT_SIMPLEFB)
884 static int lcd_dt_simplefb_configure_node(void *blob, int off)
885 {
886 #if LCD_BPP == LCD_COLOR16
887         return fdt_setup_simplefb_node(blob, off, gd->fb_base,
888                                        panel_info.vl_col, panel_info.vl_row,
889                                        panel_info.vl_col * 2, "r5g6b5");
890 #else
891         return -1;
892 #endif
893 }
894
895 int lcd_dt_simplefb_add_node(void *blob)
896 {
897         static const char compat[] = "simple-framebuffer";
898         static const char disabled[] = "disabled";
899         int off, ret;
900
901         off = fdt_add_subnode(blob, 0, "framebuffer");
902         if (off < 0)
903                 return -1;
904
905         ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
906         if (ret < 0)
907                 return -1;
908
909         ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
910         if (ret < 0)
911                 return -1;
912
913         return lcd_dt_simplefb_configure_node(blob, off);
914 }
915
916 int lcd_dt_simplefb_enable_existing_node(void *blob)
917 {
918         int off;
919
920         off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
921         if (off < 0)
922                 return -1;
923
924         return lcd_dt_simplefb_configure_node(blob, off);
925 }
926 #endif