b6be8002d201692535602677ae2d002b8618e088
[karo-tx-uboot.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  * See file CREDITS for list of people who contributed to this
8  * project.
9  *
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.
14  *
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.
19  *
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,
23  * MA 02111-1307 USA
24  */
25
26 /************************************************************************/
27 /* ** HEADER FILES                                                      */
28 /************************************************************************/
29
30 /* #define DEBUG */
31
32 #include <config.h>
33 #include <common.h>
34 #include <command.h>
35 #include <stdarg.h>
36 #include <linux/types.h>
37 #include <stdio_dev.h>
38 #if defined(CONFIG_POST)
39 #include <post.h>
40 #endif
41 #include <lcd.h>
42 #include <watchdog.h>
43
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>
48 #endif
49
50 #if defined(CONFIG_MPC823)
51 #include <lcdvideo.h>
52 #endif
53
54 #if defined(CONFIG_ATMEL_LCD)
55 #include <atmel_lcdc.h>
56 #endif
57
58 /************************************************************************/
59 /* ** FONT DATA                                                         */
60 /************************************************************************/
61 #include <video_font.h>         /* Get font data, width and height      */
62 #include <video_font_data.h>
63
64 /************************************************************************/
65 /* ** LOGO DATA                                                         */
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
72 # endif
73 #endif
74
75 DECLARE_GLOBAL_DATA_PTR;
76
77 ulong lcd_setmem (ulong addr);
78
79 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
80 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
81 static inline void lcd_putc_xy(ushort x, ushort y, uchar  c);
82
83 static int lcd_init(void *lcdbase);
84
85 static void *lcd_logo (void);
86
87 static int lcd_getbgcolor(void);
88 static void lcd_setfgcolor(int color);
89 static void lcd_setbgcolor(int color);
90
91 char lcd_is_enabled = 0;
92
93 #ifdef  NOT_USED_SO_FAR
94 static void lcd_getcolreg(ushort regno,
95                                 ushort *red, ushort *green, ushort *blue);
96 static int lcd_getfgcolor(void);
97 #endif  /* NOT_USED_SO_FAR */
98
99 /************************************************************************/
100
101 /*----------------------------------------------------------------------*/
102
103 static void console_scrollup(void)
104 {
105         /* Copy up rows ignoring the first one */
106         memcpy(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
107
108         /* Clear the last one */
109         memset(CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
110 }
111
112 /*----------------------------------------------------------------------*/
113
114 static inline void console_back(void)
115 {
116         if (--console_col < 0) {
117                 console_col = CONSOLE_COLS-1 ;
118                 if (--console_row < 0) {
119                         console_row = 0;
120                 }
121         }
122
123         lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
124                 console_row * VIDEO_FONT_HEIGHT, ' ');
125 }
126
127 /*----------------------------------------------------------------------*/
128
129 static inline void console_newline(void)
130 {
131         ++console_row;
132         console_col = 0;
133
134         /* Check if we need to scroll the terminal */
135         if (console_row >= CONSOLE_ROWS) {
136                 /* Scroll everything up */
137                 console_scrollup();
138                 --console_row;
139         }
140 }
141
142 /*----------------------------------------------------------------------*/
143
144 void lcd_putc(const char c)
145 {
146         if (!lcd_is_enabled) {
147                 serial_putc(c);
148
149                 return;
150         }
151
152         switch (c) {
153         case '\r':
154                 console_col = 0;
155
156                 return;
157         case '\n':
158                 console_newline();
159
160                 return;
161         case '\t':      /* Tab (8 chars alignment) */
162                 console_col +=  8;
163                 console_col &= ~7;
164
165                 if (console_col >= CONSOLE_COLS)
166                         console_newline();
167
168                 return;
169         case '\b':
170                 console_back();
171
172                 return;
173         default:
174                 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
175                         console_row * VIDEO_FONT_HEIGHT, c);
176                 if (++console_col >= CONSOLE_COLS)
177                         console_newline();
178         }
179 }
180
181 /*----------------------------------------------------------------------*/
182
183 void lcd_puts(const char *s)
184 {
185         if (!lcd_is_enabled) {
186                 serial_puts(s);
187
188                 return;
189         }
190
191         while (*s) {
192                 lcd_putc(*s++);
193         }
194 }
195
196 /*----------------------------------------------------------------------*/
197
198 void lcd_printf(const char *fmt, ...)
199 {
200         va_list args;
201         char buf[CONFIG_SYS_PBSIZE];
202
203         va_start(args, fmt);
204         vsprintf(buf, fmt, args);
205         va_end(args);
206
207         lcd_puts(buf);
208 }
209
210 /************************************************************************/
211 /* ** Low-Level Graphics Routines                                       */
212 /************************************************************************/
213
214 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
215 {
216         uchar *dest;
217         ushort row;
218
219 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
220         y += BMP_LOGO_HEIGHT;
221 #endif
222
223 #if LCD_BPP == LCD_MONOCHROME
224         ushort off  = x * (1 << LCD_BPP) % 8;
225 #endif
226
227         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
228
229         for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
230                 uchar *s = str;
231                 int i;
232 #if LCD_BPP == LCD_COLOR16
233                 ushort *d = (ushort *)dest;
234 #else
235                 uchar *d = dest;
236 #endif
237
238 #if LCD_BPP == LCD_MONOCHROME
239                 uchar rest = *d & -(1 << (8-off));
240                 uchar sym;
241 #endif
242                 for (i = 0; i < count; ++i) {
243                         uchar c, bits;
244
245                         c = *s++;
246                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
247
248 #if LCD_BPP == LCD_MONOCHROME
249                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
250                                 (COLOR_MASK(lcd_color_bg) & ~bits);
251
252                         *d++ = rest | (sym >> off);
253                         rest = sym << (8-off);
254 #elif LCD_BPP == LCD_COLOR8
255                         for (c = 0; c < 8; ++c) {
256                                 *d++ = (bits & 0x80) ?
257                                                 lcd_color_fg : lcd_color_bg;
258                                 bits <<= 1;
259                         }
260 #elif LCD_BPP == LCD_COLOR16
261                         for (c = 0; c < 8; ++c) {
262                                 *d++ = (bits & 0x80) ?
263                                                 lcd_color_fg : lcd_color_bg;
264                                 bits <<= 1;
265                         }
266 #endif
267                 }
268 #if LCD_BPP == LCD_MONOCHROME
269                 *d  = rest | (*d & ((1 << (8-off)) - 1));
270 #endif
271         }
272 }
273
274 /*----------------------------------------------------------------------*/
275
276 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
277 {
278         lcd_drawchars(x, y, s, strlen((char *)s));
279 }
280
281 /*----------------------------------------------------------------------*/
282
283 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
284 {
285         lcd_drawchars(x, y, &c, 1);
286 }
287
288 /************************************************************************/
289 /**  Small utility to check that you got the colours right              */
290 /************************************************************************/
291 #ifdef LCD_TEST_PATTERN
292
293 #define N_BLK_VERT      2
294 #define N_BLK_HOR       3
295
296 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
297         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
298         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
299 };
300
301 static void test_pattern(void)
302 {
303         ushort v_max  = panel_info.vl_row;
304         ushort h_max  = panel_info.vl_col;
305         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
306         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
307         ushort v, h;
308         uchar *pix = (uchar *)lcd_base;
309
310         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
311                 h_max, v_max, h_step, v_step);
312
313         /* WARNING: Code silently assumes 8bit/pixel */
314         for (v = 0; v < v_max; ++v) {
315                 uchar iy = v / v_step;
316                 for (h = 0; h < h_max; ++h) {
317                         uchar ix = N_BLK_HOR * iy + (h/h_step);
318                         *pix++ = test_colors[ix];
319                 }
320         }
321 }
322 #endif /* LCD_TEST_PATTERN */
323
324
325 /************************************************************************/
326 /* ** GENERIC Initialization Routines                                   */
327 /************************************************************************/
328
329 int drv_lcd_init (void)
330 {
331         struct stdio_dev lcddev;
332         int rc;
333
334         lcd_base = (void *)(gd->fb_base);
335
336         lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
337
338         lcd_init(lcd_base);             /* LCD initialization */
339
340         /* Device initialization */
341         memset(&lcddev, 0, sizeof(lcddev));
342
343         strcpy(lcddev.name, "lcd");
344         lcddev.ext   = 0;                       /* No extensions */
345         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
346         lcddev.putc  = lcd_putc;                /* 'putc' function */
347         lcddev.puts  = lcd_puts;                /* 'puts' function */
348
349         rc = stdio_register (&lcddev);
350
351         return (rc == 0) ? 1 : rc;
352 }
353
354 /*----------------------------------------------------------------------*/
355 static
356 int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
357 {
358         lcd_clear();
359         return 0;
360 }
361
362 void lcd_clear(void)
363 {
364 #if LCD_BPP == LCD_MONOCHROME
365         /* Setting the palette */
366         lcd_initcolregs();
367
368 #elif LCD_BPP == LCD_COLOR8
369         /* Setting the palette */
370         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
371         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
372         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
373         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
374         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
375         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
376         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
377         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
378         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
379 #endif
380
381 #ifndef CONFIG_SYS_WHITE_ON_BLACK
382         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
383         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
384 #else
385         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
386         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
387 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
388
389 #ifdef  LCD_TEST_PATTERN
390         test_pattern();
391 #else
392         /* set framebuffer to background color */
393         memset((char *)lcd_base,
394                 COLOR_MASK(lcd_getbgcolor()),
395                 lcd_line_length*panel_info.vl_row);
396 #endif
397         /* Paint the logo and retrieve LCD base address */
398         debug("[LCD] Drawing the logo...\n");
399         lcd_console_address = lcd_logo ();
400
401         console_col = 0;
402         console_row = 0;
403 }
404
405 U_BOOT_CMD(
406         cls,    1,      1,      do_lcd_clear,
407         "clear screen",
408         ""
409 );
410
411 /*----------------------------------------------------------------------*/
412
413 static int lcd_init(void *lcdbase)
414 {
415         /* Initialize the lcd controller */
416         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
417
418         lcd_ctrl_init(lcdbase);
419         lcd_is_enabled = 1;
420         lcd_clear();
421         lcd_enable ();
422
423         /* Initialize the console */
424         console_col = 0;
425 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
426         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
427 #else
428         console_row = 1;        /* leave 1 blank line below logo */
429 #endif
430
431         return 0;
432 }
433
434
435 /************************************************************************/
436 /* ** ROM capable initialization part - needed to reserve FB memory     */
437 /************************************************************************/
438 /*
439  * This is called early in the system initialization to grab memory
440  * for the LCD controller.
441  * Returns new address for monitor, after reserving LCD buffer memory
442  *
443  * Note that this is running from ROM, so no write access to global data.
444  */
445 ulong lcd_setmem(ulong addr)
446 {
447         ulong size;
448         int line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
449
450         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
451                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
452
453         size = line_length * panel_info.vl_row;
454
455         /* Round up to nearest full page */
456         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
457
458         /* Allocate pages for the frame buffer. */
459         addr -= size;
460
461         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
462
463         return addr;
464 }
465
466 /*----------------------------------------------------------------------*/
467
468 static void lcd_setfgcolor(int color)
469 {
470         lcd_color_fg = color;
471 }
472
473 /*----------------------------------------------------------------------*/
474
475 static void lcd_setbgcolor(int color)
476 {
477         lcd_color_bg = color;
478 }
479
480 /*----------------------------------------------------------------------*/
481
482 #ifdef  NOT_USED_SO_FAR
483 static int lcd_getfgcolor(void)
484 {
485         return lcd_color_fg;
486 }
487 #endif  /* NOT_USED_SO_FAR */
488
489 /*----------------------------------------------------------------------*/
490
491 static int lcd_getbgcolor(void)
492 {
493         return lcd_color_bg;
494 }
495
496 /*----------------------------------------------------------------------*/
497
498 /************************************************************************/
499 /* ** Chipset depending Bitmap / Logo stuff...                          */
500 /************************************************************************/
501 static inline ushort *configuration_get_cmap(void)
502 {
503 #if defined CONFIG_CPU_PXA
504         struct pxafb_info *fbi = &panel_info.pxa;
505         return (ushort *)fbi->palette;
506 #elif defined(CONFIG_MPC823)
507         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
508         cpm8xx_t *cp = &(immr->im_cpm);
509         return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
510 #elif defined(CONFIG_ATMEL_LCD)
511         return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
512 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
513         return panel_info.cmap;
514 #else
515 #if defined(CONFIG_LCD_LOGO)
516         return bmp_logo_palette;
517 #else
518         return NULL;
519 #endif
520 #endif
521 }
522
523 #ifdef CONFIG_LCD_LOGO
524 void bitmap_plot(int x, int y)
525 {
526 #ifdef CONFIG_ATMEL_LCD
527         uint *cmap = (uint *)bmp_logo_palette;
528 #else
529         ushort *cmap = (ushort *)bmp_logo_palette;
530 #endif
531         ushort i, j;
532         uchar *bmap;
533         uchar *fb;
534         ushort *fb16;
535 #if defined(CONFIG_MPC823)
536         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
537         cpm8xx_t *cp = &(immr->im_cpm);
538 #endif
539
540         debug("Logo: width %d  height %d  colors %d  cmap %d\n",
541                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
542                 ARRAY_SIZE(bmp_logo_palette));
543
544         bmap = &bmp_logo_bitmap[0];
545         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
546
547         if (NBITS(panel_info.vl_bpix) < 12) {
548                 /* Leave room for default color map
549                  * default case: generic system with no cmap (most likely 16bpp)
550                  * cmap was set to the source palette, so no change is done.
551                  * This avoids even more ifdefs in the next stanza
552                  */
553 #if defined(CONFIG_MPC823)
554                 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
555 #elif defined(CONFIG_ATMEL_LCD)
556                 cmap = (uint *)configuration_get_cmap();
557 #else
558                 cmap = configuration_get_cmap();
559 #endif
560
561                 WATCHDOG_RESET();
562
563                 /* Set color map */
564                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
565                         ushort colreg = bmp_logo_palette[i];
566 #ifdef CONFIG_ATMEL_LCD
567                         uint lut_entry;
568 #ifdef CONFIG_ATMEL_LCD_BGR555
569                         lut_entry = ((colreg & 0x000F) << 11) |
570                                         ((colreg & 0x00F0) <<  2) |
571                                         ((colreg & 0x0F00) >>  7);
572 #else /* CONFIG_ATMEL_LCD_RGB565 */
573                         lut_entry = ((colreg & 0x000F) << 1) |
574                                         ((colreg & 0x00F0) << 3) |
575                                         ((colreg & 0x0F00) << 4);
576 #endif
577                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
578                         cmap++;
579 #else /* !CONFIG_ATMEL_LCD */
580 #ifdef  CONFIG_SYS_INVERT_COLORS
581                         *cmap++ = 0xffff - colreg;
582 #else
583                         *cmap++ = colreg;
584 #endif
585 #endif /* CONFIG_ATMEL_LCD */
586                 }
587
588                 WATCHDOG_RESET();
589
590                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
591                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
592                         bmap += BMP_LOGO_WIDTH;
593                         fb   += panel_info.vl_col;
594                 }
595         }
596         else { /* true color mode */
597                 u16 col16;
598                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
599                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
600                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
601                                 col16 = bmp_logo_palette[(bmap[j]-16)];
602                                 fb16[j] =
603                                         ((col16 & 0x000F) << 1) |
604                                         ((col16 & 0x00F0) << 3) |
605                                         ((col16 & 0x0F00) << 4);
606                                 }
607                         bmap += BMP_LOGO_WIDTH;
608                         fb16 += panel_info.vl_col;
609                 }
610         }
611
612         WATCHDOG_RESET();
613 }
614 #else
615 static inline void bitmap_plot(int x, int y) {}
616 #endif /* CONFIG_LCD_LOGO */
617
618 /*----------------------------------------------------------------------*/
619 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
620 /*
621  * Display the BMP file located at address bmp_image.
622  * Only uncompressed.
623  */
624
625 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
626 #define BMP_ALIGN_CENTER        0x7FFF
627
628 static void splash_align_axis(int *axis, unsigned long panel_size,
629                                         unsigned long picture_size)
630 {
631         unsigned long panel_picture_delta = panel_size - picture_size;
632         unsigned long axis_alignment;
633
634         if (*axis == BMP_ALIGN_CENTER)
635                 axis_alignment = panel_picture_delta / 2;
636         else if (*axis < 0)
637                 axis_alignment = panel_picture_delta + *axis + 1;
638         else
639                 return;
640
641         *axis = max(0, axis_alignment);
642 }
643 #endif
644
645 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
646 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
647 #else
648 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
649 #endif
650
651 #if defined(CONFIG_BMP_16BPP)
652 #if defined(CONFIG_ATMEL_LCD_BGR555)
653 static inline void fb_put_word(uchar **fb, uchar **from)
654 {
655         *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
656         *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
657         *from += 2;
658 }
659 #else
660 static inline void fb_put_word(uchar **fb, uchar **from)
661 {
662         *(*fb)++ = *(*from)++;
663         *(*fb)++ = *(*from)++;
664 }
665 #endif
666 #endif /* CONFIG_BMP_16BPP */
667
668 int lcd_display_bitmap(ulong bmp_image, int x, int y)
669 {
670 #if !defined(CONFIG_MCC200)
671         ushort *cmap = NULL;
672 #endif
673         ushort *cmap_base = NULL;
674         ushort i, j;
675         uchar *fb;
676         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
677         uchar *bmap;
678         ushort padded_line;
679         unsigned long width, height, byte_width;
680         unsigned long pwidth = panel_info.vl_col;
681         unsigned colors, bpix, bmp_bpix;
682
683         if (!bmp || !((bmp->header.signature[0] == 'B') &&
684                 (bmp->header.signature[1] == 'M'))) {
685                 printf("Error: no valid bmp image at %lx\n", bmp_image);
686
687                 return 1;
688         }
689
690         width = le32_to_cpu(bmp->header.width);
691         height = le32_to_cpu(bmp->header.height);
692         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
693         colors = 1 << bmp_bpix;
694
695         bpix = NBITS(panel_info.vl_bpix);
696
697         if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
698                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
699                         bpix, bmp_bpix);
700
701                 return 1;
702         }
703
704         /* We support displaying 8bpp BMPs on 16bpp LCDs */
705         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) {
706                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
707                         bpix,
708                         le16_to_cpu(bmp->header.bit_count));
709
710                 return 1;
711         }
712
713         debug("Display-bmp: %d x %d  with %d colors\n",
714                 (int)width, (int)height, (int)colors);
715
716 #if !defined(CONFIG_MCC200)
717         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
718         if (bmp_bpix == 8) {
719                 cmap = configuration_get_cmap();
720                 cmap_base = cmap;
721
722                 /* Set color map */
723                 for (i = 0; i < colors; ++i) {
724                         bmp_color_table_entry_t cte = bmp->color_table[i];
725 #if !defined(CONFIG_ATMEL_LCD)
726                         ushort colreg =
727                                 ( ((cte.red)   << 8) & 0xf800) |
728                                 ( ((cte.green) << 3) & 0x07e0) |
729                                 ( ((cte.blue)  >> 3) & 0x001f) ;
730 #ifdef CONFIG_SYS_INVERT_COLORS
731                         *cmap = 0xffff - colreg;
732 #else
733                         *cmap = colreg;
734 #endif
735 #if defined(CONFIG_MPC823)
736                         cmap--;
737 #else
738                         cmap++;
739 #endif
740 #else /* CONFIG_ATMEL_LCD */
741                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
742 #endif
743                 }
744         }
745 #endif
746
747         /*
748          *  BMP format for Monochrome assumes that the state of a
749          * pixel is described on a per Bit basis, not per Byte.
750          *  So, in case of Monochrome BMP we should align widths
751          * on a byte boundary and convert them from Bit to Byte
752          * units.
753          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
754          * their own ways, so make the converting to be MCC200
755          * specific.
756          */
757 #if defined(CONFIG_MCC200)
758         if (bpix == 1) {
759                 width = ((width + 7) & ~7) >> 3;
760                 x     = ((x + 7) & ~7) >> 3;
761                 pwidth= ((pwidth + 7) & ~7) >> 3;
762         }
763 #endif
764
765         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
766
767 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
768         splash_align_axis(&x, pwidth, width);
769         splash_align_axis(&y, panel_info.vl_row, height);
770 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
771
772         if ((x + width) > pwidth)
773                 width = pwidth - x;
774         if ((y + height) > panel_info.vl_row)
775                 height = panel_info.vl_row - y;
776
777         bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
778         fb   = (uchar *) (lcd_base +
779                 (y + height - 1) * lcd_line_length + x * bpix / 8);
780
781         switch (bmp_bpix) {
782         case 1: /* pass through */
783         case 8:
784                 if (bpix != 16)
785                         byte_width = width;
786                 else
787                         byte_width = width * 2;
788
789                 for (i = 0; i < height; ++i) {
790                         WATCHDOG_RESET();
791                         for (j = 0; j < width; j++) {
792                                 if (bpix != 16) {
793                                         FB_PUT_BYTE(fb, bmap);
794                                 } else {
795                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
796                                         fb += sizeof(uint16_t) / sizeof(*fb);
797                                 }
798                         }
799                         bmap += (width - padded_line);
800                         fb   -= (byte_width + lcd_line_length);
801                 }
802                 break;
803
804 #if defined(CONFIG_BMP_16BPP)
805         case 16:
806                 for (i = 0; i < height; ++i) {
807                         WATCHDOG_RESET();
808                         for (j = 0; j < width; j++)
809                                 fb_put_word(&fb, &bmap);
810
811                         bmap += (padded_line - width) * 2;
812                         fb   -= (width * 2 + lcd_line_length);
813                 }
814                 break;
815 #endif /* CONFIG_BMP_16BPP */
816
817 #if defined(CONFIG_BMP_32BPP)
818         case 32:
819                 for (i = 0; i < height; ++i) {
820                         for (j = 0; j < width; j++) {
821                                 *(fb++) = *(bmap++);
822                                 *(fb++) = *(bmap++);
823                                 *(fb++) = *(bmap++);
824                                 *(fb++) = *(bmap++);
825                         }
826                         fb  -= (lcd_line_length + width * (bpix / 8));
827                 }
828                 break;
829 #endif /* CONFIG_BMP_32BPP */
830         default:
831                 break;
832         };
833
834         return 0;
835 }
836 #endif
837
838 static void *lcd_logo(void)
839 {
840 #ifdef CONFIG_SPLASH_SCREEN
841         char *s;
842         ulong addr;
843         static int do_splash = 1;
844
845         if (do_splash && (s = getenv("splashimage")) != NULL) {
846                 int x = 0, y = 0;
847                 do_splash = 0;
848
849                 addr = simple_strtoul (s, NULL, 16);
850 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
851                 s = getenv("splashpos");
852                 if (s != NULL) {
853                         if (s[0] == 'm')
854                                 x = BMP_ALIGN_CENTER;
855                         else
856                                 x = simple_strtol(s, NULL, 0);
857
858                         s = strchr(s + 1, ',');
859                         if (s != NULL) {
860                                 if (s[1] == 'm')
861                                         y = BMP_ALIGN_CENTER;
862                                 else
863                                         y = simple_strtol (s + 1, NULL, 0);
864                         }
865                 }
866 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
867
868                 if (bmp_display(addr, x, y) == 0)
869                         return (void *)lcd_base;
870         }
871 #endif /* CONFIG_SPLASH_SCREEN */
872
873         bitmap_plot(0, 0);
874
875 #ifdef CONFIG_LCD_INFO
876         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
877         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
878         lcd_show_board_info();
879 #endif /* CONFIG_LCD_INFO */
880
881 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
882         return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
883 #else
884         return (void *)lcd_base;
885 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
886 }
887
888 /************************************************************************/
889 /************************************************************************/