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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
34 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
35         defined(CONFIG_CPU_MONAHANS)
36 #define CONFIG_CPU_PXA
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 /* By default we scroll by a single line */
77 #ifndef CONFIG_CONSOLE_SCROLL_LINES
78 #define CONFIG_CONSOLE_SCROLL_LINES 1
79 #endif
80
81 /************************************************************************/
82 /* ** CONSOLE DEFINITIONS & FUNCTIONS                                   */
83 /************************************************************************/
84 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
85 # define CONSOLE_ROWS           ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
86                                         / VIDEO_FONT_HEIGHT)
87 #else
88 # define CONSOLE_ROWS           (panel_info.vl_row / VIDEO_FONT_HEIGHT)
89 #endif
90
91 #define CONSOLE_COLS            (panel_info.vl_col / VIDEO_FONT_WIDTH)
92 #define CONSOLE_ROW_SIZE        (VIDEO_FONT_HEIGHT * lcd_line_length)
93 #define CONSOLE_ROW_FIRST       lcd_console_address
94 #define CONSOLE_ROW_SECOND      (lcd_console_address + CONSOLE_ROW_SIZE)
95 #define CONSOLE_ROW_LAST        (lcd_console_address + CONSOLE_SIZE \
96                                         - CONSOLE_ROW_SIZE)
97 #define CONSOLE_SIZE            (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
98 #define CONSOLE_SCROLL_SIZE     (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
99
100 #if LCD_BPP == LCD_MONOCHROME
101 # define COLOR_MASK(c)          ((c)      | (c) << 1 | (c) << 2 | (c) << 3 | \
102                                  (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
103 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || \
104         (LCD_BPP == LCD_COLOR32)
105 # define COLOR_MASK(c)          (c)
106 #else
107 # error Unsupported LCD BPP.
108 #endif
109
110 DECLARE_GLOBAL_DATA_PTR;
111
112 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
113 static inline void lcd_putc_xy(ushort x, ushort y, uchar  c);
114
115 static int lcd_init(void *lcdbase);
116
117 static void *lcd_logo(void);
118
119 static void lcd_setfgcolor(int color);
120 static void lcd_setbgcolor(int color);
121
122 static int lcd_color_fg;
123 static int lcd_color_bg;
124 int lcd_line_length;
125
126 char lcd_is_enabled = 0;
127
128 static short console_col;
129 static short console_row;
130
131 static void *lcd_console_address;
132 static void *lcd_base;                  /* Start of framebuffer memory  */
133
134 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
135
136 /************************************************************************/
137
138 /* Flush LCD activity to the caches */
139 void lcd_sync(void)
140 {
141         /*
142          * flush_dcache_range() is declared in common.h but it seems that some
143          * architectures do not actually implement it. Is there a way to find
144          * out whether it exists? For now, ARM is safe.
145          */
146 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
147         int line_length;
148
149         if (lcd_flush_dcache)
150                 flush_dcache_range((u32)lcd_base,
151                         (u32)(lcd_base + lcd_get_size(&line_length)));
152 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
153         static ulong last_sync;
154
155         if (get_timer(last_sync) > 10) {
156                 sandbox_sdl_sync(lcd_base);
157                 last_sync = get_timer(0);
158         }
159 #endif
160 }
161
162 void lcd_set_flush_dcache(int flush)
163 {
164         lcd_flush_dcache = (flush != 0);
165 }
166
167 /*----------------------------------------------------------------------*/
168
169 static void console_scrollup(void)
170 {
171         const int rows = CONFIG_CONSOLE_SCROLL_LINES;
172
173         /* Copy up rows ignoring those that will be overwritten */
174         memcpy(CONSOLE_ROW_FIRST,
175                lcd_console_address + CONSOLE_ROW_SIZE * rows,
176                CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
177
178         /* Clear the last rows */
179 #if (LCD_BPP != LCD_COLOR32)
180         memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
181                 COLOR_MASK(lcd_color_bg),
182                 CONSOLE_ROW_SIZE * rows);
183 #else
184         u32 *ppix = lcd_console_address +
185                     CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows;
186         u32 i;
187         for (i = 0;
188             i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix);
189             i++) {
190                 *ppix++ = COLOR_MASK(lcd_color_bg);
191         }
192 #endif
193         lcd_sync();
194         console_row -= rows;
195 }
196
197 /*----------------------------------------------------------------------*/
198
199 static inline void console_back(void)
200 {
201         if (--console_col < 0) {
202                 console_col = CONSOLE_COLS-1 ;
203                 if (--console_row < 0)
204                         console_row = 0;
205         }
206
207         lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
208                 console_row * VIDEO_FONT_HEIGHT, ' ');
209 }
210
211 /*----------------------------------------------------------------------*/
212
213 static inline void console_newline(void)
214 {
215         console_col = 0;
216
217         /* Check if we need to scroll the terminal */
218         if (++console_row >= CONSOLE_ROWS)
219                 console_scrollup();
220         else
221                 lcd_sync();
222 }
223
224 /*----------------------------------------------------------------------*/
225
226 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
227 {
228         lcd_putc(c);
229 }
230
231 void lcd_putc(const char c)
232 {
233         if (!lcd_is_enabled) {
234                 serial_putc(c);
235
236                 return;
237         }
238
239         switch (c) {
240         case '\r':
241                 console_col = 0;
242
243                 return;
244         case '\n':
245                 console_newline();
246
247                 return;
248         case '\t':      /* Tab (8 chars alignment) */
249                 console_col +=  8;
250                 console_col &= ~7;
251
252                 if (console_col >= CONSOLE_COLS)
253                         console_newline();
254
255                 return;
256         case '\b':
257                 console_back();
258
259                 return;
260         default:
261                 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
262                         console_row * VIDEO_FONT_HEIGHT, c);
263                 if (++console_col >= CONSOLE_COLS)
264                         console_newline();
265         }
266 }
267
268 /*----------------------------------------------------------------------*/
269
270 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
271 {
272         lcd_puts(s);
273 }
274
275 void lcd_puts(const char *s)
276 {
277         if (!lcd_is_enabled) {
278                 serial_puts(s);
279
280                 return;
281         }
282
283         while (*s)
284                 lcd_putc(*s++);
285
286         lcd_sync();
287 }
288
289 /*----------------------------------------------------------------------*/
290
291 void lcd_printf(const char *fmt, ...)
292 {
293         va_list args;
294         char buf[CONFIG_SYS_PBSIZE];
295
296         va_start(args, fmt);
297         vsprintf(buf, fmt, args);
298         va_end(args);
299
300         lcd_puts(buf);
301 }
302
303 /************************************************************************/
304 /* ** Low-Level Graphics Routines                                       */
305 /************************************************************************/
306
307 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
308 {
309         uchar *dest;
310         ushort row;
311
312 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
313         y += BMP_LOGO_HEIGHT;
314 #endif
315
316 #if LCD_BPP == LCD_MONOCHROME
317         ushort off  = x * (1 << LCD_BPP) % 8;
318 #endif
319
320         dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8);
321
322         for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
323                 uchar *s = str;
324                 int i;
325 #if LCD_BPP == LCD_COLOR16
326                 ushort *d = (ushort *)dest;
327 #elif LCD_BPP == LCD_COLOR32
328                 u32 *d = (u32 *)dest;
329 #else
330                 uchar *d = dest;
331 #endif
332
333 #if LCD_BPP == LCD_MONOCHROME
334                 uchar rest = *d & -(1 << (8 - off));
335                 uchar sym;
336 #endif
337                 for (i = 0; i < count; ++i) {
338                         uchar c, bits;
339
340                         c = *s++;
341                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
342
343 #if LCD_BPP == LCD_MONOCHROME
344                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
345                                 (COLOR_MASK(lcd_color_bg) & ~bits);
346
347                         *d++ = rest | (sym >> off);
348                         rest = sym << (8-off);
349 #elif LCD_BPP == LCD_COLOR8
350                         for (c = 0; c < 8; ++c) {
351                                 *d++ = (bits & 0x80) ?
352                                                 lcd_color_fg : lcd_color_bg;
353                                 bits <<= 1;
354                         }
355 #elif LCD_BPP == LCD_COLOR16
356                         for (c = 0; c < 8; ++c) {
357                                 *d++ = (bits & 0x80) ?
358                                                 lcd_color_fg : lcd_color_bg;
359                                 bits <<= 1;
360                         }
361 #elif LCD_BPP == LCD_COLOR32
362                         for (c = 0; c < 8; ++c) {
363                                 *d++ = (bits & 0x80) ?
364                                                 lcd_color_fg : lcd_color_bg;
365                                 bits <<= 1;
366                         }
367 #endif
368                 }
369 #if LCD_BPP == LCD_MONOCHROME
370                 *d  = rest | (*d & ((1 << (8 - off)) - 1));
371 #endif
372         }
373 }
374
375 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
376 {
377         lcd_drawchars(x, y, &c, 1);
378 }
379
380 /************************************************************************/
381 /**  Small utility to check that you got the colours right              */
382 /************************************************************************/
383 #ifdef LCD_TEST_PATTERN
384
385 #define N_BLK_VERT      2
386 #define N_BLK_HOR       3
387
388 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
389         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
390         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
391 };
392
393 static void test_pattern(void)
394 {
395         ushort v_max  = panel_info.vl_row;
396         ushort h_max  = panel_info.vl_col;
397         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
398         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
399         ushort v, h;
400         uchar *pix = (uchar *)lcd_base;
401
402         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
403                 h_max, v_max, h_step, v_step);
404
405         /* WARNING: Code silently assumes 8bit/pixel */
406         for (v = 0; v < v_max; ++v) {
407                 uchar iy = v / v_step;
408                 for (h = 0; h < h_max; ++h) {
409                         uchar ix = N_BLK_HOR * iy + h / h_step;
410                         *pix++ = test_colors[ix];
411                 }
412         }
413 }
414 #endif /* LCD_TEST_PATTERN */
415
416
417 /************************************************************************/
418 /* ** GENERIC Initialization Routines                                   */
419 /************************************************************************/
420 /*
421  * With most lcd drivers the line length is set up
422  * by calculating it from panel_info parameters. Some
423  * drivers need to calculate the line length differently,
424  * so make the function weak to allow overriding it.
425  */
426 __weak int lcd_get_size(int *line_length)
427 {
428         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
429         return *line_length * panel_info.vl_row;
430 }
431
432 int drv_lcd_init(void)
433 {
434         struct stdio_dev lcddev;
435         int rc;
436
437         lcd_base = map_sysmem(gd->fb_base, 0);
438
439         lcd_init(lcd_base);             /* LCD initialization */
440
441         /* Device initialization */
442         memset(&lcddev, 0, sizeof(lcddev));
443
444         strcpy(lcddev.name, "lcd");
445         lcddev.ext   = 0;                       /* No extensions */
446         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
447         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
448         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
449
450         rc = stdio_register(&lcddev);
451
452         return (rc == 0) ? 1 : rc;
453 }
454
455 /*----------------------------------------------------------------------*/
456 void lcd_clear(void)
457 {
458 #if LCD_BPP == LCD_MONOCHROME
459         /* Setting the palette */
460         lcd_initcolregs();
461
462 #elif LCD_BPP == LCD_COLOR8
463         /* Setting the palette */
464         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
465         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
466         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
467         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
468         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
469         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
470         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
471         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
472         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
473 #endif
474
475 #ifndef CONFIG_SYS_WHITE_ON_BLACK
476         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
477         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
478 #else
479         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
480         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
481 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
482
483 #ifdef  LCD_TEST_PATTERN
484         test_pattern();
485 #else
486         /* set framebuffer to background color */
487 #if (LCD_BPP != LCD_COLOR32)
488         memset((char *)lcd_base,
489                 COLOR_MASK(lcd_color_bg),
490                 lcd_line_length * panel_info.vl_row);
491 #else
492         u32 *ppix = lcd_base;
493         u32 i;
494         for (i = 0;
495            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
496            i++) {
497                 *ppix++ = COLOR_MASK(lcd_color_bg);
498         }
499 #endif
500 #endif
501         /* Paint the logo and retrieve LCD base address */
502         debug("[LCD] Drawing the logo...\n");
503         lcd_console_address = lcd_logo();
504
505         console_col = 0;
506         console_row = 0;
507         lcd_sync();
508 }
509
510 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
511                         char *const argv[])
512 {
513         lcd_clear();
514         return 0;
515 }
516
517 U_BOOT_CMD(
518         cls,    1,      1,      do_lcd_clear,
519         "clear screen",
520         ""
521 );
522
523 /*----------------------------------------------------------------------*/
524
525 static int lcd_init(void *lcdbase)
526 {
527         /* Initialize the lcd controller */
528         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
529
530         lcd_ctrl_init(lcdbase);
531
532         /*
533          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
534          * the 'lcdbase' argument and uses custom lcd base address
535          * by setting up gd->fb_base. Check for this condition and fixup
536          * 'lcd_base' address.
537          */
538         if (map_to_sysmem(lcdbase) != gd->fb_base)
539                 lcd_base = map_sysmem(gd->fb_base, 0);
540
541         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
542
543         lcd_get_size(&lcd_line_length);
544         lcd_is_enabled = 1;
545         lcd_clear();
546         lcd_enable();
547
548         /* Initialize the console */
549         console_col = 0;
550 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
551         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
552 #else
553         console_row = 1;        /* leave 1 blank line below logo */
554 #endif
555
556         return 0;
557 }
558
559
560 /************************************************************************/
561 /* ** ROM capable initialization part - needed to reserve FB memory     */
562 /************************************************************************/
563 /*
564  * This is called early in the system initialization to grab memory
565  * for the LCD controller.
566  * Returns new address for monitor, after reserving LCD buffer memory
567  *
568  * Note that this is running from ROM, so no write access to global data.
569  */
570 ulong lcd_setmem(ulong addr)
571 {
572         ulong size;
573         int line_length;
574
575         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
576                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
577
578         size = lcd_get_size(&line_length);
579
580         /* Round up to nearest full page, or MMU section if defined */
581         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
582         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
583
584         /* Allocate pages for the frame buffer. */
585         addr -= size;
586
587         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
588               size >> 10, addr);
589
590         return addr;
591 }
592
593 /*----------------------------------------------------------------------*/
594
595 static void lcd_setfgcolor(int color)
596 {
597         lcd_color_fg = color;
598 }
599
600 /*----------------------------------------------------------------------*/
601
602 static void lcd_setbgcolor(int color)
603 {
604         lcd_color_bg = color;
605 }
606
607 /************************************************************************/
608 /* ** Chipset depending Bitmap / Logo stuff...                          */
609 /************************************************************************/
610 static inline ushort *configuration_get_cmap(void)
611 {
612 #if defined CONFIG_CPU_PXA
613         struct pxafb_info *fbi = &panel_info.pxa;
614         return (ushort *)fbi->palette;
615 #elif defined(CONFIG_MPC823)
616         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
617         cpm8xx_t *cp = &(immr->im_cpm);
618         return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
619 #elif defined(CONFIG_ATMEL_LCD)
620         return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
621 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
622         return panel_info.cmap;
623 #elif defined(CONFIG_LCD_LOGO)
624         return bmp_logo_palette;
625 #else
626         return NULL;
627 #endif
628 }
629
630 #ifdef CONFIG_LCD_LOGO
631 void bitmap_plot(int x, int y)
632 {
633 #ifdef CONFIG_ATMEL_LCD
634         uint *cmap = (uint *)bmp_logo_palette;
635 #else
636         ushort *cmap = (ushort *)bmp_logo_palette;
637 #endif
638         ushort i, j;
639         uchar *bmap;
640         uchar *fb;
641         ushort *fb16;
642 #if defined(CONFIG_MPC823)
643         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
644         cpm8xx_t *cp = &(immr->im_cpm);
645 #endif
646         unsigned bpix = NBITS(panel_info.vl_bpix);
647
648         debug("Logo: width %d  height %d  colors %d  cmap %d\n",
649                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
650                 ARRAY_SIZE(bmp_logo_palette));
651
652         bmap = &bmp_logo_bitmap[0];
653         fb   = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
654
655         if (bpix < 12) {
656                 /* Leave room for default color map
657                  * default case: generic system with no cmap (most likely 16bpp)
658                  * cmap was set to the source palette, so no change is done.
659                  * This avoids even more ifdefs in the next stanza
660                  */
661 #if defined(CONFIG_MPC823)
662                 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
663 #elif defined(CONFIG_ATMEL_LCD)
664                 cmap = (uint *)configuration_get_cmap();
665 #else
666                 cmap = configuration_get_cmap();
667 #endif
668
669                 WATCHDOG_RESET();
670
671                 /* Set color map */
672                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
673                         ushort colreg = bmp_logo_palette[i];
674 #ifdef CONFIG_ATMEL_LCD
675                         uint lut_entry;
676 #ifdef CONFIG_ATMEL_LCD_BGR555
677                         lut_entry = ((colreg & 0x000F) << 11) |
678                                         ((colreg & 0x00F0) <<  2) |
679                                         ((colreg & 0x0F00) >>  7);
680 #else /* CONFIG_ATMEL_LCD_RGB565 */
681                         lut_entry = ((colreg & 0x000F) << 1) |
682                                         ((colreg & 0x00F0) << 3) |
683                                         ((colreg & 0x0F00) << 4);
684 #endif
685                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
686                         cmap++;
687 #else /* !CONFIG_ATMEL_LCD */
688 #ifdef  CONFIG_SYS_INVERT_COLORS
689                         *cmap++ = 0xffff - colreg;
690 #else
691                         *cmap++ = colreg;
692 #endif
693 #endif /* CONFIG_ATMEL_LCD */
694                 }
695
696                 WATCHDOG_RESET();
697
698                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
699                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
700                         bmap += BMP_LOGO_WIDTH;
701                         fb += panel_info.vl_col;
702                 }
703         }
704         else { /* true color mode */
705                 u16 col16;
706                 fb16 = (ushort *)fb;
707                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
708                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
709                                 col16 = bmp_logo_palette[(bmap[j]-16)];
710                                 fb16[j] =
711                                         ((col16 & 0x000F) << 1) |
712                                         ((col16 & 0x00F0) << 3) |
713                                         ((col16 & 0x0F00) << 4);
714                                 }
715                         bmap += BMP_LOGO_WIDTH;
716                         fb16 += panel_info.vl_col;
717                 }
718         }
719
720         WATCHDOG_RESET();
721         lcd_sync();
722 }
723 #else
724 static inline void bitmap_plot(int x, int y) {}
725 #endif /* CONFIG_LCD_LOGO */
726
727 /*----------------------------------------------------------------------*/
728 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
729 /*
730  * Display the BMP file located at address bmp_image.
731  * Only uncompressed.
732  */
733
734 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
735 #define BMP_ALIGN_CENTER        0x7FFF
736
737 static void splash_align_axis(int *axis, unsigned long panel_size,
738                                         unsigned long picture_size)
739 {
740         unsigned long panel_picture_delta = panel_size - picture_size;
741         unsigned long axis_alignment;
742
743         if (*axis == BMP_ALIGN_CENTER)
744                 axis_alignment = panel_picture_delta / 2;
745         else if (*axis < 0)
746                 axis_alignment = panel_picture_delta + *axis + 1;
747         else
748                 return;
749
750         *axis = max(0, axis_alignment);
751 }
752 #endif
753
754
755 #ifdef CONFIG_LCD_BMP_RLE8
756
757 #define BMP_RLE8_ESCAPE         0
758 #define BMP_RLE8_EOL            0
759 #define BMP_RLE8_EOBMP          1
760 #define BMP_RLE8_DELTA          2
761
762 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
763                                   int cnt)
764 {
765         while (cnt > 0) {
766                 *(*fbp)++ = cmap[*bmap++];
767                 cnt--;
768         }
769 }
770
771 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
772 {
773         ushort *fb = *fbp;
774         int cnt_8copy = cnt >> 3;
775
776         cnt -= cnt_8copy << 3;
777         while (cnt_8copy > 0) {
778                 *fb++ = c;
779                 *fb++ = c;
780                 *fb++ = c;
781                 *fb++ = c;
782                 *fb++ = c;
783                 *fb++ = c;
784                 *fb++ = c;
785                 *fb++ = c;
786                 cnt_8copy--;
787         }
788         while (cnt > 0) {
789                 *fb++ = c;
790                 cnt--;
791         }
792         *fbp = fb;
793 }
794
795 /*
796  * Do not call this function directly, must be called from lcd_display_bitmap.
797  */
798 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
799                                     int x_off, int y_off)
800 {
801         uchar *bmap;
802         ulong width, height;
803         ulong cnt, runlen;
804         int x, y;
805         int decode = 1;
806
807         width = get_unaligned_le32(&bmp->header.width);
808         height = get_unaligned_le32(&bmp->header.height);
809         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
810
811         x = 0;
812         y = height - 1;
813
814         while (decode) {
815                 if (bmap[0] == BMP_RLE8_ESCAPE) {
816                         switch (bmap[1]) {
817                         case BMP_RLE8_EOL:
818                                 /* end of line */
819                                 bmap += 2;
820                                 x = 0;
821                                 y--;
822                                 /* 16bpix, 2-byte per pixel, width should *2 */
823                                 fb -= (width * 2 + lcd_line_length);
824                                 break;
825                         case BMP_RLE8_EOBMP:
826                                 /* end of bitmap */
827                                 decode = 0;
828                                 break;
829                         case BMP_RLE8_DELTA:
830                                 /* delta run */
831                                 x += bmap[2];
832                                 y -= bmap[3];
833                                 /* 16bpix, 2-byte per pixel, x should *2 */
834                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
835                                         * lcd_line_length + (x + x_off) * 2);
836                                 bmap += 4;
837                                 break;
838                         default:
839                                 /* unencoded run */
840                                 runlen = bmap[1];
841                                 bmap += 2;
842                                 if (y < height) {
843                                         if (x < width) {
844                                                 if (x + runlen > width)
845                                                         cnt = width - x;
846                                                 else
847                                                         cnt = runlen;
848                                                 draw_unencoded_bitmap(
849                                                         (ushort **)&fb,
850                                                         bmap, cmap, cnt);
851                                         }
852                                         x += runlen;
853                                 }
854                                 bmap += runlen;
855                                 if (runlen & 1)
856                                         bmap++;
857                         }
858                 } else {
859                         /* encoded run */
860                         if (y < height) {
861                                 runlen = bmap[0];
862                                 if (x < width) {
863                                         /* aggregate the same code */
864                                         while (bmap[0] == 0xff &&
865                                                bmap[2] != BMP_RLE8_ESCAPE &&
866                                                bmap[1] == bmap[3]) {
867                                                 runlen += bmap[2];
868                                                 bmap += 2;
869                                         }
870                                         if (x + runlen > width)
871                                                 cnt = width - x;
872                                         else
873                                                 cnt = runlen;
874                                         draw_encoded_bitmap((ushort **)&fb,
875                                                 cmap[bmap[1]], cnt);
876                                 }
877                                 x += runlen;
878                         }
879                         bmap += 2;
880                 }
881         }
882 }
883 #endif
884
885 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
886 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
887 #else
888 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
889 #endif
890
891 #if defined(CONFIG_BMP_16BPP)
892 #if defined(CONFIG_ATMEL_LCD_BGR555)
893 static inline void fb_put_word(uchar **fb, uchar **from)
894 {
895         *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
896         *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
897         *from += 2;
898 }
899 #else
900 static inline void fb_put_word(uchar **fb, uchar **from)
901 {
902         *(*fb)++ = *(*from)++;
903         *(*fb)++ = *(*from)++;
904 }
905 #endif
906 #endif /* CONFIG_BMP_16BPP */
907
908 int lcd_display_bitmap(ulong bmp_image, int x, int y)
909 {
910 #if !defined(CONFIG_MCC200)
911         ushort *cmap = NULL;
912 #endif
913         ushort *cmap_base = NULL;
914         ushort i, j;
915         uchar *fb;
916         bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
917         uchar *bmap;
918         ushort padded_width;
919         unsigned long width, height, byte_width;
920         unsigned long pwidth = panel_info.vl_col;
921         unsigned colors, bpix, bmp_bpix;
922
923         if (!bmp || !(bmp->header.signature[0] == 'B' &&
924                 bmp->header.signature[1] == 'M')) {
925                 printf("Error: no valid bmp image at %lx\n", bmp_image);
926
927                 return 1;
928         }
929
930         width = get_unaligned_le32(&bmp->header.width);
931         height = get_unaligned_le32(&bmp->header.height);
932         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
933
934         colors = 1 << bmp_bpix;
935
936         bpix = NBITS(panel_info.vl_bpix);
937
938         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
939                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
940                         bpix, bmp_bpix);
941
942                 return 1;
943         }
944
945         /*
946          * We support displaying 8bpp BMPs on 16bpp LCDs
947          * and displaying 24bpp BMPs on 32bpp LCDs
948          * */
949         if (bpix != bmp_bpix &&
950             !(bmp_bpix == 8 && bpix == 16) &&
951             !(bmp_bpix == 24 && bpix == 32)) {
952                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
953                         bpix, get_unaligned_le16(&bmp->header.bit_count));
954                 return 1;
955         }
956
957         debug("Display-bmp: %d x %d  with %d colors\n",
958                 (int)width, (int)height, (int)colors);
959
960 #if !defined(CONFIG_MCC200)
961         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
962         if (bmp_bpix == 8) {
963                 cmap = configuration_get_cmap();
964                 cmap_base = cmap;
965
966                 /* Set color map */
967                 for (i = 0; i < colors; ++i) {
968                         bmp_color_table_entry_t cte = bmp->color_table[i];
969 #if !defined(CONFIG_ATMEL_LCD)
970                         ushort colreg =
971                                 ( ((cte.red)   << 8) & 0xf800) |
972                                 ( ((cte.green) << 3) & 0x07e0) |
973                                 ( ((cte.blue)  >> 3) & 0x001f) ;
974 #ifdef CONFIG_SYS_INVERT_COLORS
975                         *cmap = 0xffff - colreg;
976 #else
977                         *cmap = colreg;
978 #endif
979 #if defined(CONFIG_MPC823)
980                         cmap--;
981 #else
982                         cmap++;
983 #endif
984 #else /* CONFIG_ATMEL_LCD */
985                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
986 #endif
987                 }
988         }
989 #endif
990         /*
991          *  BMP format for Monochrome assumes that the state of a
992          * pixel is described on a per Bit basis, not per Byte.
993          *  So, in case of Monochrome BMP we should align widths
994          * on a byte boundary and convert them from Bit to Byte
995          * units.
996          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
997          * their own ways, so make the converting to be MCC200
998          * specific.
999          */
1000 #if defined(CONFIG_MCC200)
1001         if (bpix == 1) {
1002                 width = ((width + 7) & ~7) >> 3;
1003                 x     = ((x + 7) & ~7) >> 3;
1004                 pwidth= ((pwidth + 7) & ~7) >> 3;
1005         }
1006 #endif
1007
1008         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
1009
1010 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1011         splash_align_axis(&x, pwidth, width);
1012         splash_align_axis(&y, panel_info.vl_row, height);
1013 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1014
1015         if ((x + width) > pwidth)
1016                 width = pwidth - x;
1017         if ((y + height) > panel_info.vl_row)
1018                 height = panel_info.vl_row - y;
1019
1020         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
1021         fb   = (uchar *)(lcd_base +
1022                 (y + height - 1) * lcd_line_length + x * bpix / 8);
1023
1024         switch (bmp_bpix) {
1025         case 1: /* pass through */
1026         case 8:
1027 #ifdef CONFIG_LCD_BMP_RLE8
1028                 u32 compression = get_unaligned_le32(&bmp->header.compression);
1029                 if (compression == BMP_BI_RLE8) {
1030                         if (bpix != 16) {
1031                                 /* TODO implement render code for bpix != 16 */
1032                                 printf("Error: only support 16 bpix");
1033                                 return 1;
1034                         }
1035                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
1036                         break;
1037                 }
1038 #endif
1039
1040                 if (bpix != 16)
1041                         byte_width = width;
1042                 else
1043                         byte_width = width * 2;
1044
1045                 for (i = 0; i < height; ++i) {
1046                         WATCHDOG_RESET();
1047                         for (j = 0; j < width; j++) {
1048                                 if (bpix != 16) {
1049                                         FB_PUT_BYTE(fb, bmap);
1050                                 } else {
1051                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
1052                                         fb += sizeof(uint16_t) / sizeof(*fb);
1053                                 }
1054                         }
1055                         bmap += (padded_width - width);
1056                         fb -= byte_width + lcd_line_length;
1057                 }
1058                 break;
1059
1060 #if defined(CONFIG_BMP_16BPP)
1061         case 16:
1062                 for (i = 0; i < height; ++i) {
1063                         WATCHDOG_RESET();
1064                         for (j = 0; j < width; j++)
1065                                 fb_put_word(&fb, &bmap);
1066
1067                         bmap += (padded_width - width) * 2;
1068                         fb -= width * 2 + lcd_line_length;
1069                 }
1070                 break;
1071 #endif /* CONFIG_BMP_16BPP */
1072 #if defined(CONFIG_BMP_24BMP)
1073         case 24:
1074                 for (i = 0; i < height; ++i) {
1075                         for (j = 0; j < width; j++) {
1076                                 *(fb++) = *(bmap++);
1077                                 *(fb++) = *(bmap++);
1078                                 *(fb++) = *(bmap++);
1079                                 *(fb++) = 0;
1080                         }
1081                         fb -= lcd_line_length + width * (bpix / 8);
1082                 }
1083                 break;
1084 #endif /* CONFIG_BMP_24BMP */
1085 #if defined(CONFIG_BMP_32BPP)
1086         case 32:
1087                 for (i = 0; i < height; ++i) {
1088                         for (j = 0; j < width; j++) {
1089                                 *(fb++) = *(bmap++);
1090                                 *(fb++) = *(bmap++);
1091                                 *(fb++) = *(bmap++);
1092                                 *(fb++) = *(bmap++);
1093                         }
1094                         fb -= lcd_line_length + width * (bpix / 8);
1095                 }
1096                 break;
1097 #endif /* CONFIG_BMP_32BPP */
1098         default:
1099                 break;
1100         };
1101
1102         lcd_sync();
1103         return 0;
1104 }
1105 #endif
1106
1107 static void *lcd_logo(void)
1108 {
1109 #ifdef CONFIG_SPLASH_SCREEN
1110         char *s;
1111         ulong addr;
1112         static int do_splash = 1;
1113
1114         if (do_splash && (s = getenv("splashimage")) != NULL) {
1115                 int x = 0, y = 0;
1116                 do_splash = 0;
1117
1118                 if (splash_screen_prepare())
1119                         return (void *)lcd_base;
1120
1121                 addr = simple_strtoul (s, NULL, 16);
1122
1123                 splash_get_pos(&x, &y);
1124
1125                 if (bmp_display(addr, x, y) == 0)
1126                         return (void *)lcd_base;
1127         }
1128 #endif /* CONFIG_SPLASH_SCREEN */
1129
1130         bitmap_plot(0, 0);
1131
1132 #ifdef CONFIG_LCD_INFO
1133         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1134         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1135         lcd_show_board_info();
1136 #endif /* CONFIG_LCD_INFO */
1137
1138 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1139         return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1140 #else
1141         return (void *)lcd_base;
1142 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
1143 }
1144
1145 #ifdef CONFIG_SPLASHIMAGE_GUARD
1146 static int on_splashimage(const char *name, const char *value, enum env_op op,
1147         int flags)
1148 {
1149         ulong addr;
1150         int aligned;
1151
1152         if (op == env_op_delete)
1153                 return 0;
1154
1155         addr = simple_strtoul(value, NULL, 16);
1156         /* See README.displaying-bmps */
1157         aligned = (addr % 4 == 2);
1158         if (!aligned) {
1159                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1160                 return -1;
1161         }
1162
1163         return 0;
1164 }
1165
1166 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1167 #endif
1168
1169 void lcd_position_cursor(unsigned col, unsigned row)
1170 {
1171         console_col = min(col, CONSOLE_COLS - 1);
1172         console_row = min(row, CONSOLE_ROWS - 1);
1173 }
1174
1175 int lcd_get_pixel_width(void)
1176 {
1177         return panel_info.vl_col;
1178 }
1179
1180 int lcd_get_pixel_height(void)
1181 {
1182         return panel_info.vl_row;
1183 }
1184
1185 int lcd_get_screen_rows(void)
1186 {
1187         return CONSOLE_ROWS;
1188 }
1189
1190 int lcd_get_screen_columns(void)
1191 {
1192         return CONSOLE_COLS;
1193 }
1194
1195 #if defined(CONFIG_LCD_DT_SIMPLEFB)
1196 static int lcd_dt_simplefb_configure_node(void *blob, int off)
1197 {
1198         u32 stride;
1199         fdt32_t cells[2];
1200         int ret;
1201         static const char format[] =
1202 #if LCD_BPP == LCD_COLOR16
1203                 "r5g6b5";
1204 #else
1205                 "";
1206 #endif
1207
1208         if (!format[0])
1209                 return -1;
1210
1211         stride = panel_info.vl_col * 2;
1212
1213         cells[0] = cpu_to_fdt32(gd->fb_base);
1214         cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
1215         ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
1216         if (ret < 0)
1217                 return -1;
1218
1219         cells[0] = cpu_to_fdt32(panel_info.vl_col);
1220         ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
1221         if (ret < 0)
1222                 return -1;
1223
1224         cells[0] = cpu_to_fdt32(panel_info.vl_row);
1225         ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
1226         if (ret < 0)
1227                 return -1;
1228
1229         cells[0] = cpu_to_fdt32(stride);
1230         ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
1231         if (ret < 0)
1232                 return -1;
1233
1234         ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
1235         if (ret < 0)
1236                 return -1;
1237
1238         ret = fdt_delprop(blob, off, "status");
1239         if (ret < 0)
1240                 return -1;
1241
1242         return 0;
1243 }
1244
1245 int lcd_dt_simplefb_add_node(void *blob)
1246 {
1247         static const char compat[] = "simple-framebuffer";
1248         static const char disabled[] = "disabled";
1249         int off, ret;
1250
1251         off = fdt_add_subnode(blob, 0, "framebuffer");
1252         if (off < 0)
1253                 return -1;
1254
1255         ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
1256         if (ret < 0)
1257                 return -1;
1258
1259         ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
1260         if (ret < 0)
1261                 return -1;
1262
1263         return lcd_dt_simplefb_configure_node(blob, off);
1264 }
1265
1266 int lcd_dt_simplefb_enable_existing_node(void *blob)
1267 {
1268         int off;
1269
1270         off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
1271         if (off < 0)
1272                 return -1;
1273
1274         return lcd_dt_simplefb_configure_node(blob, off);
1275 }
1276 #endif