Merge 'u-boot-microblaze/zynq' into (u-boot-arm/master'
[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
30 #include <splash.h>
31
32 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
33         defined(CONFIG_CPU_MONAHANS)
34 #define CONFIG_CPU_PXA
35 #include <asm/byteorder.h>
36 #endif
37
38 #if defined(CONFIG_MPC823)
39 #include <lcdvideo.h>
40 #endif
41
42 #if defined(CONFIG_ATMEL_LCD)
43 #include <atmel_lcdc.h>
44 #endif
45
46 #if defined(CONFIG_LCD_DT_SIMPLEFB)
47 #include <libfdt.h>
48 #endif
49
50 /************************************************************************/
51 /* ** FONT DATA                                                         */
52 /************************************************************************/
53 #include <video_font.h>         /* Get font data, width and height      */
54
55 /************************************************************************/
56 /* ** LOGO DATA                                                         */
57 /************************************************************************/
58 #ifdef CONFIG_LCD_LOGO
59 # include <bmp_logo.h>          /* Get logo data, width and height      */
60 # include <bmp_logo_data.h>
61 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
62 #  error Default Color Map overlaps with Logo Color Map
63 # endif
64 #endif
65
66 #ifndef CONFIG_LCD_ALIGNMENT
67 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
68 #endif
69
70 /* By default we scroll by a single line */
71 #ifndef CONFIG_CONSOLE_SCROLL_LINES
72 #define CONFIG_CONSOLE_SCROLL_LINES 1
73 #endif
74
75 /************************************************************************/
76 /* ** CONSOLE DEFINITIONS & FUNCTIONS                                   */
77 /************************************************************************/
78 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
79 # define CONSOLE_ROWS           ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
80                                         / VIDEO_FONT_HEIGHT)
81 #else
82 # define CONSOLE_ROWS           (panel_info.vl_row / VIDEO_FONT_HEIGHT)
83 #endif
84
85 #define CONSOLE_COLS            (panel_info.vl_col / VIDEO_FONT_WIDTH)
86 #define CONSOLE_ROW_SIZE        (VIDEO_FONT_HEIGHT * lcd_line_length)
87 #define CONSOLE_ROW_FIRST       lcd_console_address
88 #define CONSOLE_ROW_SECOND      (lcd_console_address + CONSOLE_ROW_SIZE)
89 #define CONSOLE_ROW_LAST        (lcd_console_address + CONSOLE_SIZE \
90                                         - CONSOLE_ROW_SIZE)
91 #define CONSOLE_SIZE            (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
92 #define CONSOLE_SCROLL_SIZE     (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
93
94 #if LCD_BPP == LCD_MONOCHROME
95 # define COLOR_MASK(c)          ((c)      | (c) << 1 | (c) << 2 | (c) << 3 | \
96                                  (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
97 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
98 # define COLOR_MASK(c)          (c)
99 #else
100 # error Unsupported LCD BPP.
101 #endif
102
103 DECLARE_GLOBAL_DATA_PTR;
104
105 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
106 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
107 static inline void lcd_putc_xy(ushort x, ushort y, uchar  c);
108
109 static int lcd_init(void *lcdbase);
110
111 static void *lcd_logo(void);
112
113 static int lcd_getbgcolor(void);
114 static void lcd_setfgcolor(int color);
115 static void lcd_setbgcolor(int color);
116
117 static int lcd_color_fg;
118 static int lcd_color_bg;
119 int lcd_line_length;
120
121 char lcd_is_enabled = 0;
122
123 static short console_col;
124 static short console_row;
125
126 static void *lcd_console_address;
127 static void *lcd_base;                  /* Start of framebuffer memory  */
128
129 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
130
131 /************************************************************************/
132
133 /* Flush LCD activity to the caches */
134 void lcd_sync(void)
135 {
136         /*
137          * flush_dcache_range() is declared in common.h but it seems that some
138          * architectures do not actually implement it. Is there a way to find
139          * out whether it exists? For now, ARM is safe.
140          */
141 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
142         int line_length;
143
144         if (lcd_flush_dcache)
145                 flush_dcache_range((u32)lcd_base,
146                         (u32)(lcd_base + lcd_get_size(&line_length)));
147 #endif
148 }
149
150 void lcd_set_flush_dcache(int flush)
151 {
152         lcd_flush_dcache = (flush != 0);
153 }
154
155 /*----------------------------------------------------------------------*/
156
157 static void console_scrollup(void)
158 {
159         const int rows = CONFIG_CONSOLE_SCROLL_LINES;
160
161         /* Copy up rows ignoring those that will be overwritten */
162         memcpy(CONSOLE_ROW_FIRST,
163                lcd_console_address + CONSOLE_ROW_SIZE * rows,
164                CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
165
166         /* Clear the last rows */
167         memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
168                 COLOR_MASK(lcd_color_bg),
169                 CONSOLE_ROW_SIZE * rows);
170
171         lcd_sync();
172         console_row -= rows;
173 }
174
175 /*----------------------------------------------------------------------*/
176
177 static inline void console_back(void)
178 {
179         if (--console_col < 0) {
180                 console_col = CONSOLE_COLS-1 ;
181                 if (--console_row < 0)
182                         console_row = 0;
183         }
184
185         lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
186                 console_row * VIDEO_FONT_HEIGHT, ' ');
187 }
188
189 /*----------------------------------------------------------------------*/
190
191 static inline void console_newline(void)
192 {
193         console_col = 0;
194
195         /* Check if we need to scroll the terminal */
196         if (++console_row >= CONSOLE_ROWS)
197                 console_scrollup();
198         else
199                 lcd_sync();
200 }
201
202 /*----------------------------------------------------------------------*/
203
204 void lcd_putc(const char c)
205 {
206         if (!lcd_is_enabled) {
207                 serial_putc(c);
208
209                 return;
210         }
211
212         switch (c) {
213         case '\r':
214                 console_col = 0;
215
216                 return;
217         case '\n':
218                 console_newline();
219
220                 return;
221         case '\t':      /* Tab (8 chars alignment) */
222                 console_col +=  8;
223                 console_col &= ~7;
224
225                 if (console_col >= CONSOLE_COLS)
226                         console_newline();
227
228                 return;
229         case '\b':
230                 console_back();
231
232                 return;
233         default:
234                 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
235                         console_row * VIDEO_FONT_HEIGHT, c);
236                 if (++console_col >= CONSOLE_COLS)
237                         console_newline();
238         }
239 }
240
241 /*----------------------------------------------------------------------*/
242
243 void lcd_puts(const char *s)
244 {
245         if (!lcd_is_enabled) {
246                 serial_puts(s);
247
248                 return;
249         }
250
251         while (*s)
252                 lcd_putc(*s++);
253
254         lcd_sync();
255 }
256
257 /*----------------------------------------------------------------------*/
258
259 void lcd_printf(const char *fmt, ...)
260 {
261         va_list args;
262         char buf[CONFIG_SYS_PBSIZE];
263
264         va_start(args, fmt);
265         vsprintf(buf, fmt, args);
266         va_end(args);
267
268         lcd_puts(buf);
269 }
270
271 /************************************************************************/
272 /* ** Low-Level Graphics Routines                                       */
273 /************************************************************************/
274
275 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
276 {
277         uchar *dest;
278         ushort row;
279
280 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
281         y += BMP_LOGO_HEIGHT;
282 #endif
283
284 #if LCD_BPP == LCD_MONOCHROME
285         ushort off  = x * (1 << LCD_BPP) % 8;
286 #endif
287
288         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
289
290         for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
291                 uchar *s = str;
292                 int i;
293 #if LCD_BPP == LCD_COLOR16
294                 ushort *d = (ushort *)dest;
295 #else
296                 uchar *d = dest;
297 #endif
298
299 #if LCD_BPP == LCD_MONOCHROME
300                 uchar rest = *d & -(1 << (8 - off));
301                 uchar sym;
302 #endif
303                 for (i = 0; i < count; ++i) {
304                         uchar c, bits;
305
306                         c = *s++;
307                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
308
309 #if LCD_BPP == LCD_MONOCHROME
310                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
311                                 (COLOR_MASK(lcd_color_bg) & ~bits);
312
313                         *d++ = rest | (sym >> off);
314                         rest = sym << (8-off);
315 #elif LCD_BPP == LCD_COLOR8
316                         for (c = 0; c < 8; ++c) {
317                                 *d++ = (bits & 0x80) ?
318                                                 lcd_color_fg : lcd_color_bg;
319                                 bits <<= 1;
320                         }
321 #elif LCD_BPP == LCD_COLOR16
322                         for (c = 0; c < 8; ++c) {
323                                 *d++ = (bits & 0x80) ?
324                                                 lcd_color_fg : lcd_color_bg;
325                                 bits <<= 1;
326                         }
327 #endif
328                 }
329 #if LCD_BPP == LCD_MONOCHROME
330                 *d  = rest | (*d & ((1 << (8 - off)) - 1));
331 #endif
332         }
333 }
334
335 /*----------------------------------------------------------------------*/
336
337 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
338 {
339         lcd_drawchars(x, y, s, strlen((char *)s));
340 }
341
342 /*----------------------------------------------------------------------*/
343
344 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
345 {
346         lcd_drawchars(x, y, &c, 1);
347 }
348
349 /************************************************************************/
350 /**  Small utility to check that you got the colours right              */
351 /************************************************************************/
352 #ifdef LCD_TEST_PATTERN
353
354 #define N_BLK_VERT      2
355 #define N_BLK_HOR       3
356
357 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
358         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
359         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
360 };
361
362 static void test_pattern(void)
363 {
364         ushort v_max  = panel_info.vl_row;
365         ushort h_max  = panel_info.vl_col;
366         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
367         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
368         ushort v, h;
369         uchar *pix = (uchar *)lcd_base;
370
371         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
372                 h_max, v_max, h_step, v_step);
373
374         /* WARNING: Code silently assumes 8bit/pixel */
375         for (v = 0; v < v_max; ++v) {
376                 uchar iy = v / v_step;
377                 for (h = 0; h < h_max; ++h) {
378                         uchar ix = N_BLK_HOR * iy + h / h_step;
379                         *pix++ = test_colors[ix];
380                 }
381         }
382 }
383 #endif /* LCD_TEST_PATTERN */
384
385
386 /************************************************************************/
387 /* ** GENERIC Initialization Routines                                   */
388 /************************************************************************/
389
390 int lcd_get_size(int *line_length)
391 {
392         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
393         return *line_length * panel_info.vl_row;
394 }
395
396 int drv_lcd_init(void)
397 {
398         struct stdio_dev lcddev;
399         int rc;
400
401         lcd_base = (void *) gd->fb_base;
402
403         lcd_init(lcd_base);             /* LCD initialization */
404
405         /* Device initialization */
406         memset(&lcddev, 0, sizeof(lcddev));
407
408         strcpy(lcddev.name, "lcd");
409         lcddev.ext   = 0;                       /* No extensions */
410         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
411         lcddev.putc  = lcd_putc;                /* 'putc' function */
412         lcddev.puts  = lcd_puts;                /* 'puts' function */
413
414         rc = stdio_register(&lcddev);
415
416         return (rc == 0) ? 1 : rc;
417 }
418
419 /*----------------------------------------------------------------------*/
420 void lcd_clear(void)
421 {
422 #if LCD_BPP == LCD_MONOCHROME
423         /* Setting the palette */
424         lcd_initcolregs();
425
426 #elif LCD_BPP == LCD_COLOR8
427         /* Setting the palette */
428         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
429         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
430         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
431         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
432         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
433         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
434         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
435         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
436         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
437 #endif
438
439 #ifndef CONFIG_SYS_WHITE_ON_BLACK
440         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
441         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
442 #else
443         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
444         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
445 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
446
447 #ifdef  LCD_TEST_PATTERN
448         test_pattern();
449 #else
450         /* set framebuffer to background color */
451         memset((char *)lcd_base,
452                 COLOR_MASK(lcd_getbgcolor()),
453                 lcd_line_length * panel_info.vl_row);
454 #endif
455         /* Paint the logo and retrieve LCD base address */
456         debug("[LCD] Drawing the logo...\n");
457         lcd_console_address = lcd_logo();
458
459         console_col = 0;
460         console_row = 0;
461         lcd_sync();
462 }
463
464 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
465                         char *const argv[])
466 {
467         lcd_clear();
468         return 0;
469 }
470
471 U_BOOT_CMD(
472         cls,    1,      1,      do_lcd_clear,
473         "clear screen",
474         ""
475 );
476
477 /*----------------------------------------------------------------------*/
478
479 static int lcd_init(void *lcdbase)
480 {
481         /* Initialize the lcd controller */
482         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
483
484         lcd_ctrl_init(lcdbase);
485
486         /*
487          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
488          * the 'lcdbase' argument and uses custom lcd base address
489          * by setting up gd->fb_base. Check for this condition and fixup
490          * 'lcd_base' address.
491          */
492         if ((unsigned long)lcdbase != gd->fb_base)
493                 lcd_base = (void *)gd->fb_base;
494
495         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
496
497         lcd_get_size(&lcd_line_length);
498         lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
499         lcd_is_enabled = 1;
500         lcd_clear();
501         lcd_enable();
502
503         /* Initialize the console */
504         console_col = 0;
505 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
506         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
507 #else
508         console_row = 1;        /* leave 1 blank line below logo */
509 #endif
510
511         return 0;
512 }
513
514
515 /************************************************************************/
516 /* ** ROM capable initialization part - needed to reserve FB memory     */
517 /************************************************************************/
518 /*
519  * This is called early in the system initialization to grab memory
520  * for the LCD controller.
521  * Returns new address for monitor, after reserving LCD buffer memory
522  *
523  * Note that this is running from ROM, so no write access to global data.
524  */
525 ulong lcd_setmem(ulong addr)
526 {
527         ulong size;
528         int line_length;
529
530         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
531                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
532
533         size = lcd_get_size(&line_length);
534
535         /* Round up to nearest full page, or MMU section if defined */
536         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
537         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
538
539         /* Allocate pages for the frame buffer. */
540         addr -= size;
541
542         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
543               size >> 10, addr);
544
545         return addr;
546 }
547
548 /*----------------------------------------------------------------------*/
549
550 static void lcd_setfgcolor(int color)
551 {
552         lcd_color_fg = color;
553 }
554
555 /*----------------------------------------------------------------------*/
556
557 static void lcd_setbgcolor(int color)
558 {
559         lcd_color_bg = color;
560 }
561
562 /*----------------------------------------------------------------------*/
563
564 int lcd_getfgcolor(void)
565 {
566         return lcd_color_fg;
567 }
568
569 /*----------------------------------------------------------------------*/
570
571 static int lcd_getbgcolor(void)
572 {
573         return lcd_color_bg;
574 }
575
576 /************************************************************************/
577 /* ** Chipset depending Bitmap / Logo stuff...                          */
578 /************************************************************************/
579 static inline ushort *configuration_get_cmap(void)
580 {
581 #if defined CONFIG_CPU_PXA
582         struct pxafb_info *fbi = &panel_info.pxa;
583         return (ushort *)fbi->palette;
584 #elif defined(CONFIG_MPC823)
585         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
586         cpm8xx_t *cp = &(immr->im_cpm);
587         return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
588 #elif defined(CONFIG_ATMEL_LCD)
589         return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
590 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
591         return panel_info.cmap;
592 #elif defined(CONFIG_LCD_LOGO)
593         return bmp_logo_palette;
594 #else
595         return NULL;
596 #endif
597 }
598
599 #ifdef CONFIG_LCD_LOGO
600 void bitmap_plot(int x, int y)
601 {
602 #ifdef CONFIG_ATMEL_LCD
603         uint *cmap = (uint *)bmp_logo_palette;
604 #else
605         ushort *cmap = (ushort *)bmp_logo_palette;
606 #endif
607         ushort i, j;
608         uchar *bmap;
609         uchar *fb;
610         ushort *fb16;
611 #if defined(CONFIG_MPC823)
612         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
613         cpm8xx_t *cp = &(immr->im_cpm);
614 #endif
615         unsigned bpix = NBITS(panel_info.vl_bpix);
616
617         debug("Logo: width %d  height %d  colors %d  cmap %d\n",
618                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
619                 ARRAY_SIZE(bmp_logo_palette));
620
621         bmap = &bmp_logo_bitmap[0];
622         fb   = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
623
624         if (bpix < 12) {
625                 /* Leave room for default color map
626                  * default case: generic system with no cmap (most likely 16bpp)
627                  * cmap was set to the source palette, so no change is done.
628                  * This avoids even more ifdefs in the next stanza
629                  */
630 #if defined(CONFIG_MPC823)
631                 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
632 #elif defined(CONFIG_ATMEL_LCD)
633                 cmap = (uint *)configuration_get_cmap();
634 #else
635                 cmap = configuration_get_cmap();
636 #endif
637
638                 WATCHDOG_RESET();
639
640                 /* Set color map */
641                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
642                         ushort colreg = bmp_logo_palette[i];
643 #ifdef CONFIG_ATMEL_LCD
644                         uint lut_entry;
645 #ifdef CONFIG_ATMEL_LCD_BGR555
646                         lut_entry = ((colreg & 0x000F) << 11) |
647                                         ((colreg & 0x00F0) <<  2) |
648                                         ((colreg & 0x0F00) >>  7);
649 #else /* CONFIG_ATMEL_LCD_RGB565 */
650                         lut_entry = ((colreg & 0x000F) << 1) |
651                                         ((colreg & 0x00F0) << 3) |
652                                         ((colreg & 0x0F00) << 4);
653 #endif
654                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
655                         cmap++;
656 #else /* !CONFIG_ATMEL_LCD */
657 #ifdef  CONFIG_SYS_INVERT_COLORS
658                         *cmap++ = 0xffff - colreg;
659 #else
660                         *cmap++ = colreg;
661 #endif
662 #endif /* CONFIG_ATMEL_LCD */
663                 }
664
665                 WATCHDOG_RESET();
666
667                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
668                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
669                         bmap += BMP_LOGO_WIDTH;
670                         fb += panel_info.vl_col;
671                 }
672         }
673         else { /* true color mode */
674                 u16 col16;
675                 fb16 = (ushort *)fb;
676                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
677                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
678                                 col16 = bmp_logo_palette[(bmap[j]-16)];
679                                 fb16[j] =
680                                         ((col16 & 0x000F) << 1) |
681                                         ((col16 & 0x00F0) << 3) |
682                                         ((col16 & 0x0F00) << 4);
683                                 }
684                         bmap += BMP_LOGO_WIDTH;
685                         fb16 += panel_info.vl_col;
686                 }
687         }
688
689         WATCHDOG_RESET();
690         lcd_sync();
691 }
692 #else
693 static inline void bitmap_plot(int x, int y) {}
694 #endif /* CONFIG_LCD_LOGO */
695
696 /*----------------------------------------------------------------------*/
697 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
698 /*
699  * Display the BMP file located at address bmp_image.
700  * Only uncompressed.
701  */
702
703 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
704 #define BMP_ALIGN_CENTER        0x7FFF
705
706 static void splash_align_axis(int *axis, unsigned long panel_size,
707                                         unsigned long picture_size)
708 {
709         unsigned long panel_picture_delta = panel_size - picture_size;
710         unsigned long axis_alignment;
711
712         if (*axis == BMP_ALIGN_CENTER)
713                 axis_alignment = panel_picture_delta / 2;
714         else if (*axis < 0)
715                 axis_alignment = panel_picture_delta + *axis + 1;
716         else
717                 return;
718
719         *axis = max(0, axis_alignment);
720 }
721 #endif
722
723
724 #ifdef CONFIG_LCD_BMP_RLE8
725
726 #define BMP_RLE8_ESCAPE         0
727 #define BMP_RLE8_EOL            0
728 #define BMP_RLE8_EOBMP          1
729 #define BMP_RLE8_DELTA          2
730
731 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
732                                   int cnt)
733 {
734         while (cnt > 0) {
735                 *(*fbp)++ = cmap[*bmap++];
736                 cnt--;
737         }
738 }
739
740 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
741 {
742         ushort *fb = *fbp;
743         int cnt_8copy = cnt >> 3;
744
745         cnt -= cnt_8copy << 3;
746         while (cnt_8copy > 0) {
747                 *fb++ = c;
748                 *fb++ = c;
749                 *fb++ = c;
750                 *fb++ = c;
751                 *fb++ = c;
752                 *fb++ = c;
753                 *fb++ = c;
754                 *fb++ = c;
755                 cnt_8copy--;
756         }
757         while (cnt > 0) {
758                 *fb++ = c;
759                 cnt--;
760         }
761         *fbp = fb;
762 }
763
764 /*
765  * Do not call this function directly, must be called from lcd_display_bitmap.
766  */
767 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
768                                     int x_off, int y_off)
769 {
770         uchar *bmap;
771         ulong width, height;
772         ulong cnt, runlen;
773         int x, y;
774         int decode = 1;
775
776         width = le32_to_cpu(bmp->header.width);
777         height = le32_to_cpu(bmp->header.height);
778         bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
779
780         x = 0;
781         y = height - 1;
782
783         while (decode) {
784                 if (bmap[0] == BMP_RLE8_ESCAPE) {
785                         switch (bmap[1]) {
786                         case BMP_RLE8_EOL:
787                                 /* end of line */
788                                 bmap += 2;
789                                 x = 0;
790                                 y--;
791                                 /* 16bpix, 2-byte per pixel, width should *2 */
792                                 fb -= (width * 2 + lcd_line_length);
793                                 break;
794                         case BMP_RLE8_EOBMP:
795                                 /* end of bitmap */
796                                 decode = 0;
797                                 break;
798                         case BMP_RLE8_DELTA:
799                                 /* delta run */
800                                 x += bmap[2];
801                                 y -= bmap[3];
802                                 /* 16bpix, 2-byte per pixel, x should *2 */
803                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
804                                         * lcd_line_length + (x + x_off) * 2);
805                                 bmap += 4;
806                                 break;
807                         default:
808                                 /* unencoded run */
809                                 runlen = bmap[1];
810                                 bmap += 2;
811                                 if (y < height) {
812                                         if (x < width) {
813                                                 if (x + runlen > width)
814                                                         cnt = width - x;
815                                                 else
816                                                         cnt = runlen;
817                                                 draw_unencoded_bitmap(
818                                                         (ushort **)&fb,
819                                                         bmap, cmap, cnt);
820                                         }
821                                         x += runlen;
822                                 }
823                                 bmap += runlen;
824                                 if (runlen & 1)
825                                         bmap++;
826                         }
827                 } else {
828                         /* encoded run */
829                         if (y < height) {
830                                 runlen = bmap[0];
831                                 if (x < width) {
832                                         /* aggregate the same code */
833                                         while (bmap[0] == 0xff &&
834                                                bmap[2] != BMP_RLE8_ESCAPE &&
835                                                bmap[1] == bmap[3]) {
836                                                 runlen += bmap[2];
837                                                 bmap += 2;
838                                         }
839                                         if (x + runlen > width)
840                                                 cnt = width - x;
841                                         else
842                                                 cnt = runlen;
843                                         draw_encoded_bitmap((ushort **)&fb,
844                                                 cmap[bmap[1]], cnt);
845                                 }
846                                 x += runlen;
847                         }
848                         bmap += 2;
849                 }
850         }
851 }
852 #endif
853
854 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
855 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
856 #else
857 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
858 #endif
859
860 #if defined(CONFIG_BMP_16BPP)
861 #if defined(CONFIG_ATMEL_LCD_BGR555)
862 static inline void fb_put_word(uchar **fb, uchar **from)
863 {
864         *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
865         *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
866         *from += 2;
867 }
868 #else
869 static inline void fb_put_word(uchar **fb, uchar **from)
870 {
871         *(*fb)++ = *(*from)++;
872         *(*fb)++ = *(*from)++;
873 }
874 #endif
875 #endif /* CONFIG_BMP_16BPP */
876
877 int lcd_display_bitmap(ulong bmp_image, int x, int y)
878 {
879 #if !defined(CONFIG_MCC200)
880         ushort *cmap = NULL;
881 #endif
882         ushort *cmap_base = NULL;
883         ushort i, j;
884         uchar *fb;
885         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
886         uchar *bmap;
887         ushort padded_width;
888         unsigned long width, height, byte_width;
889         unsigned long pwidth = panel_info.vl_col;
890         unsigned colors, bpix, bmp_bpix;
891
892         if (!bmp || !(bmp->header.signature[0] == 'B' &&
893                 bmp->header.signature[1] == 'M')) {
894                 printf("Error: no valid bmp image at %lx\n", bmp_image);
895
896                 return 1;
897         }
898
899         width = le32_to_cpu(bmp->header.width);
900         height = le32_to_cpu(bmp->header.height);
901         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
902         colors = 1 << bmp_bpix;
903
904         bpix = NBITS(panel_info.vl_bpix);
905
906         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
907                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
908                         bpix, bmp_bpix);
909
910                 return 1;
911         }
912
913         /* We support displaying 8bpp BMPs on 16bpp LCDs */
914         if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
915                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
916                         bpix,
917                         le16_to_cpu(bmp->header.bit_count));
918
919                 return 1;
920         }
921
922         debug("Display-bmp: %d x %d  with %d colors\n",
923                 (int)width, (int)height, (int)colors);
924
925 #if !defined(CONFIG_MCC200)
926         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
927         if (bmp_bpix == 8) {
928                 cmap = configuration_get_cmap();
929                 cmap_base = cmap;
930
931                 /* Set color map */
932                 for (i = 0; i < colors; ++i) {
933                         bmp_color_table_entry_t cte = bmp->color_table[i];
934 #if !defined(CONFIG_ATMEL_LCD)
935                         ushort colreg =
936                                 ( ((cte.red)   << 8) & 0xf800) |
937                                 ( ((cte.green) << 3) & 0x07e0) |
938                                 ( ((cte.blue)  >> 3) & 0x001f) ;
939 #ifdef CONFIG_SYS_INVERT_COLORS
940                         *cmap = 0xffff - colreg;
941 #else
942                         *cmap = colreg;
943 #endif
944 #if defined(CONFIG_MPC823)
945                         cmap--;
946 #else
947                         cmap++;
948 #endif
949 #else /* CONFIG_ATMEL_LCD */
950                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
951 #endif
952                 }
953         }
954 #endif
955
956         /*
957          *  BMP format for Monochrome assumes that the state of a
958          * pixel is described on a per Bit basis, not per Byte.
959          *  So, in case of Monochrome BMP we should align widths
960          * on a byte boundary and convert them from Bit to Byte
961          * units.
962          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
963          * their own ways, so make the converting to be MCC200
964          * specific.
965          */
966 #if defined(CONFIG_MCC200)
967         if (bpix == 1) {
968                 width = ((width + 7) & ~7) >> 3;
969                 x     = ((x + 7) & ~7) >> 3;
970                 pwidth= ((pwidth + 7) & ~7) >> 3;
971         }
972 #endif
973
974         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
975
976 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
977         splash_align_axis(&x, pwidth, width);
978         splash_align_axis(&y, panel_info.vl_row, height);
979 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
980
981         if ((x + width) > pwidth)
982                 width = pwidth - x;
983         if ((y + height) > panel_info.vl_row)
984                 height = panel_info.vl_row - y;
985
986         bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset);
987         fb   = (uchar *) (lcd_base +
988                 (y + height - 1) * lcd_line_length + x * bpix / 8);
989
990         switch (bmp_bpix) {
991         case 1: /* pass through */
992         case 8:
993 #ifdef CONFIG_LCD_BMP_RLE8
994                 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) {
995                         if (bpix != 16) {
996                                 /* TODO implement render code for bpix != 16 */
997                                 printf("Error: only support 16 bpix");
998                                 return 1;
999                         }
1000                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
1001                         break;
1002                 }
1003 #endif
1004
1005                 if (bpix != 16)
1006                         byte_width = width;
1007                 else
1008                         byte_width = width * 2;
1009
1010                 for (i = 0; i < height; ++i) {
1011                         WATCHDOG_RESET();
1012                         for (j = 0; j < width; j++) {
1013                                 if (bpix != 16) {
1014                                         FB_PUT_BYTE(fb, bmap);
1015                                 } else {
1016                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
1017                                         fb += sizeof(uint16_t) / sizeof(*fb);
1018                                 }
1019                         }
1020                         bmap += (padded_width - width);
1021                         fb -= byte_width + lcd_line_length;
1022                 }
1023                 break;
1024
1025 #if defined(CONFIG_BMP_16BPP)
1026         case 16:
1027                 for (i = 0; i < height; ++i) {
1028                         WATCHDOG_RESET();
1029                         for (j = 0; j < width; j++)
1030                                 fb_put_word(&fb, &bmap);
1031
1032                         bmap += (padded_width - width) * 2;
1033                         fb -= width * 2 + lcd_line_length;
1034                 }
1035                 break;
1036 #endif /* CONFIG_BMP_16BPP */
1037
1038 #if defined(CONFIG_BMP_32BPP)
1039         case 32:
1040                 for (i = 0; i < height; ++i) {
1041                         for (j = 0; j < width; j++) {
1042                                 *(fb++) = *(bmap++);
1043                                 *(fb++) = *(bmap++);
1044                                 *(fb++) = *(bmap++);
1045                                 *(fb++) = *(bmap++);
1046                         }
1047                         fb -= lcd_line_length + width * (bpix / 8);
1048                 }
1049                 break;
1050 #endif /* CONFIG_BMP_32BPP */
1051         default:
1052                 break;
1053         };
1054
1055         lcd_sync();
1056         return 0;
1057 }
1058 #endif
1059
1060 static void *lcd_logo(void)
1061 {
1062 #ifdef CONFIG_SPLASH_SCREEN
1063         char *s;
1064         ulong addr;
1065         static int do_splash = 1;
1066
1067         if (do_splash && (s = getenv("splashimage")) != NULL) {
1068                 int x = 0, y = 0;
1069                 do_splash = 0;
1070
1071                 if (splash_screen_prepare())
1072                         return (void *)lcd_base;
1073
1074                 addr = simple_strtoul (s, NULL, 16);
1075
1076                 splash_get_pos(&x, &y);
1077
1078                 if (bmp_display(addr, x, y) == 0)
1079                         return (void *)lcd_base;
1080         }
1081 #endif /* CONFIG_SPLASH_SCREEN */
1082
1083         bitmap_plot(0, 0);
1084
1085 #ifdef CONFIG_LCD_INFO
1086         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1087         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1088         lcd_show_board_info();
1089 #endif /* CONFIG_LCD_INFO */
1090
1091 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1092         return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1093 #else
1094         return (void *)lcd_base;
1095 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
1096 }
1097
1098 #ifdef CONFIG_SPLASHIMAGE_GUARD
1099 static int on_splashimage(const char *name, const char *value, enum env_op op,
1100         int flags)
1101 {
1102         ulong addr;
1103         int aligned;
1104
1105         if (op == env_op_delete)
1106                 return 0;
1107
1108         addr = simple_strtoul(value, NULL, 16);
1109         /* See README.displaying-bmps */
1110         aligned = (addr % 4 == 2);
1111         if (!aligned) {
1112                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1113                 return -1;
1114         }
1115
1116         return 0;
1117 }
1118
1119 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1120 #endif
1121
1122 void lcd_position_cursor(unsigned col, unsigned row)
1123 {
1124         console_col = min(col, CONSOLE_COLS - 1);
1125         console_row = min(row, CONSOLE_ROWS - 1);
1126 }
1127
1128 int lcd_get_pixel_width(void)
1129 {
1130         return panel_info.vl_col;
1131 }
1132
1133 int lcd_get_pixel_height(void)
1134 {
1135         return panel_info.vl_row;
1136 }
1137
1138 int lcd_get_screen_rows(void)
1139 {
1140         return CONSOLE_ROWS;
1141 }
1142
1143 int lcd_get_screen_columns(void)
1144 {
1145         return CONSOLE_COLS;
1146 }
1147
1148 #if defined(CONFIG_LCD_DT_SIMPLEFB)
1149 static int lcd_dt_simplefb_configure_node(void *blob, int off)
1150 {
1151         u32 stride;
1152         fdt32_t cells[2];
1153         int ret;
1154         static const char format[] =
1155 #if LCD_BPP == LCD_COLOR16
1156                 "r5g6b5";
1157 #else
1158                 "";
1159 #endif
1160
1161         if (!format[0])
1162                 return -1;
1163
1164         stride = panel_info.vl_col * 2;
1165
1166         cells[0] = cpu_to_fdt32(gd->fb_base);
1167         cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
1168         ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
1169         if (ret < 0)
1170                 return -1;
1171
1172         cells[0] = cpu_to_fdt32(panel_info.vl_col);
1173         ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
1174         if (ret < 0)
1175                 return -1;
1176
1177         cells[0] = cpu_to_fdt32(panel_info.vl_row);
1178         ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
1179         if (ret < 0)
1180                 return -1;
1181
1182         cells[0] = cpu_to_fdt32(stride);
1183         ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
1184         if (ret < 0)
1185                 return -1;
1186
1187         ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
1188         if (ret < 0)
1189                 return -1;
1190
1191         ret = fdt_delprop(blob, off, "status");
1192         if (ret < 0)
1193                 return -1;
1194
1195         return 0;
1196 }
1197
1198 int lcd_dt_simplefb_add_node(void *blob)
1199 {
1200         static const char compat[] = "simple-framebuffer";
1201         static const char disabled[] = "disabled";
1202         int off, ret;
1203
1204         off = fdt_add_subnode(blob, 0, "framebuffer");
1205         if (off < 0)
1206                 return -1;
1207
1208         ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
1209         if (ret < 0)
1210                 return -1;
1211
1212         ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
1213         if (ret < 0)
1214                 return -1;
1215
1216         return lcd_dt_simplefb_configure_node(blob, off);
1217 }
1218
1219 int lcd_dt_simplefb_enable_existing_node(void *blob)
1220 {
1221         int off;
1222
1223         off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
1224         if (off < 0)
1225                 return -1;
1226
1227         return lcd_dt_simplefb_configure_node(blob, off);
1228 }
1229 #endif