1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Common LCD routines
4 *
5 * (C) Copyright 2001-2002
6 * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
7 */
8
9 /* #define DEBUG */
10 #include <config.h>
11 #include <common.h>
12 #include <command.h>
13 #include <cpu_func.h>
14 #include <env_callback.h>
15 #include <linux/types.h>
16 #include <stdio_dev.h>
17 #include <lcd.h>
18 #include <mapmem.h>
19 #include <watchdog.h>
20 #include <asm/unaligned.h>
21 #include <splash.h>
22 #include <asm/io.h>
23 #include <asm/unaligned.h>
24 #include <video_font.h>
25
26 #ifdef CONFIG_LCD_LOGO
27 #include <bmp_logo.h>
28 #include <bmp_logo_data.h>
29 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
30 #error Default Color Map overlaps with Logo Color Map
31 #endif
32 #endif
33
34 #ifndef CONFIG_LCD_ALIGNMENT
35 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
36 #endif
37
38 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
39 (LCD_BPP != LCD_COLOR32)
40 #error Unsupported LCD BPP.
41 #endif
42
43 DECLARE_GLOBAL_DATA_PTR;
44
45 static int lcd_init(void *lcdbase);
46 static void lcd_logo(void);
47 static void lcd_setfgcolor(int color);
48 static void lcd_setbgcolor(int color);
49
50 static int lcd_color_fg;
51 static int lcd_color_bg;
52 int lcd_line_length;
53 char lcd_is_enabled = 0;
54 static void *lcd_base; /* Start of framebuffer memory */
55 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
56
57 /* Flush LCD activity to the caches */
lcd_sync(void)58 void lcd_sync(void)
59 {
60 /*
61 * flush_dcache_range() is declared in common.h but it seems that some
62 * architectures do not actually implement it. Is there a way to find
63 * out whether it exists? For now, ARM is safe.
64 */
65 #if defined(CONFIG_ARM) && !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
66 int line_length;
67
68 if (lcd_flush_dcache)
69 flush_dcache_range((ulong)lcd_base,
70 (ulong)(lcd_base + lcd_get_size(&line_length)));
71 #endif
72 }
73
lcd_set_flush_dcache(int flush)74 void lcd_set_flush_dcache(int flush)
75 {
76 lcd_flush_dcache = (flush != 0);
77 }
78
lcd_stub_putc(struct stdio_dev * dev,const char c)79 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
80 {
81 lcd_putc(c);
82 }
83
lcd_stub_puts(struct stdio_dev * dev,const char * s)84 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
85 {
86 lcd_puts(s);
87 }
88
89 /* Small utility to check that you got the colours right */
90 #ifdef LCD_TEST_PATTERN
91
92 #if LCD_BPP == LCD_COLOR8
93 #define N_BLK_VERT 2
94 #define N_BLK_HOR 3
95
96 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
97 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
98 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
99 }; /*LCD_BPP == LCD_COLOR8 */
100
101 #elif LCD_BPP == LCD_COLOR16
102 #define N_BLK_VERT 2
103 #define N_BLK_HOR 4
104
105 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
106 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, CONSOLE_COLOR_BLUE,
107 CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, CONSOLE_COLOR_GREY, CONSOLE_COLOR_WHITE,
108 };
109 #endif /*LCD_BPP == LCD_COLOR16 */
110
test_pattern(void)111 static void test_pattern(void)
112 {
113 ushort v_max = panel_info.vl_row;
114 ushort h_max = panel_info.vl_col;
115 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
116 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
117 ushort v, h;
118 #if LCD_BPP == LCD_COLOR8
119 uchar *pix = (uchar *)lcd_base;
120 #elif LCD_BPP == LCD_COLOR16
121 ushort *pix = (ushort *)lcd_base;
122 #endif
123
124 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
125 h_max, v_max, h_step, v_step);
126
127 for (v = 0; v < v_max; ++v) {
128 uchar iy = v / v_step;
129 for (h = 0; h < h_max; ++h) {
130 uchar ix = N_BLK_HOR * iy + h / h_step;
131 *pix++ = test_colors[ix];
132 }
133 }
134 }
135 #endif /* LCD_TEST_PATTERN */
136
137 /*
138 * With most lcd drivers the line length is set up
139 * by calculating it from panel_info parameters. Some
140 * drivers need to calculate the line length differently,
141 * so make the function weak to allow overriding it.
142 */
lcd_get_size(int * line_length)143 __weak int lcd_get_size(int *line_length)
144 {
145 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
146 return *line_length * panel_info.vl_row;
147 }
148
drv_lcd_init(void)149 int drv_lcd_init(void)
150 {
151 struct stdio_dev lcddev;
152 int rc;
153
154 lcd_base = map_sysmem(gd->fb_base, 0);
155
156 lcd_init(lcd_base);
157
158 /* Device initialization */
159 memset(&lcddev, 0, sizeof(lcddev));
160
161 strcpy(lcddev.name, "lcd");
162 lcddev.ext = 0; /* No extensions */
163 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
164 lcddev.putc = lcd_stub_putc; /* 'putc' function */
165 lcddev.puts = lcd_stub_puts; /* 'puts' function */
166
167 rc = stdio_register(&lcddev);
168
169 return (rc == 0) ? 1 : rc;
170 }
171
lcd_clear(void)172 void lcd_clear(void)
173 {
174 int bg_color;
175 __maybe_unused ulong addr;
176 static int do_splash = 1;
177 #if LCD_BPP == LCD_COLOR8
178 /* Setting the palette */
179 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
180 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
181 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
182 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
183 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
184 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
185 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
186 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
187 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
188 #endif
189
190 #ifndef CONFIG_SYS_WHITE_ON_BLACK
191 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
192 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
193 bg_color = CONSOLE_COLOR_WHITE;
194 #else
195 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
196 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
197 bg_color = CONSOLE_COLOR_BLACK;
198 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
199
200 #ifdef LCD_TEST_PATTERN
201 test_pattern();
202 #else
203 /* set framebuffer to background color */
204 #if (LCD_BPP != LCD_COLOR32)
205 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
206 #else
207 u32 *ppix = lcd_base;
208 u32 i;
209 for (i = 0;
210 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
211 i++) {
212 *ppix++ = bg_color;
213 }
214 #endif
215 #endif
216 /* setup text-console */
217 debug("[LCD] setting up console...\n");
218 lcd_init_console(lcd_base,
219 panel_info.vl_col,
220 panel_info.vl_row,
221 panel_info.vl_rot);
222 /* Paint the logo and retrieve LCD base address */
223 debug("[LCD] Drawing the logo...\n");
224 if (do_splash) {
225 if (splash_display() == 0) {
226 do_splash = 0;
227 lcd_sync();
228 return;
229 }
230 }
231
232 lcd_logo();
233 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
234 addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
235 lcd_init_console((void *)addr, panel_info.vl_col,
236 panel_info.vl_row, panel_info.vl_rot);
237 #endif
238 lcd_sync();
239 }
240
lcd_init(void * lcdbase)241 static int lcd_init(void *lcdbase)
242 {
243 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
244 lcd_ctrl_init(lcdbase);
245
246 /*
247 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
248 * the 'lcdbase' argument and uses custom lcd base address
249 * by setting up gd->fb_base. Check for this condition and fixup
250 * 'lcd_base' address.
251 */
252 if (map_to_sysmem(lcdbase) != gd->fb_base)
253 lcd_base = map_sysmem(gd->fb_base, 0);
254
255 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
256
257 lcd_get_size(&lcd_line_length);
258 lcd_is_enabled = 1;
259 lcd_clear();
260 lcd_enable();
261
262 /* Initialize the console */
263 lcd_set_col(0);
264 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
265 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
266 #else
267 lcd_set_row(1); /* leave 1 blank line below logo */
268 #endif
269
270 return 0;
271 }
272
273 /*
274 * This is called early in the system initialization to grab memory
275 * for the LCD controller.
276 * Returns new address for monitor, after reserving LCD buffer memory
277 *
278 * Note that this is running from ROM, so no write access to global data.
279 */
lcd_setmem(ulong addr)280 ulong lcd_setmem(ulong addr)
281 {
282 ulong size;
283 int line_length;
284
285 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
286 panel_info.vl_row, NBITS(panel_info.vl_bpix));
287
288 size = lcd_get_size(&line_length);
289
290 /* Round up to nearest full page, or MMU section if defined */
291 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
292 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
293
294 /* Allocate pages for the frame buffer. */
295 addr -= size;
296
297 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
298 size >> 10, addr);
299
300 return addr;
301 }
302
lcd_setfgcolor(int color)303 static void lcd_setfgcolor(int color)
304 {
305 lcd_color_fg = color;
306 }
307
lcd_getfgcolor(void)308 int lcd_getfgcolor(void)
309 {
310 return lcd_color_fg;
311 }
312
lcd_setbgcolor(int color)313 static void lcd_setbgcolor(int color)
314 {
315 lcd_color_bg = color;
316 }
317
lcd_getbgcolor(void)318 int lcd_getbgcolor(void)
319 {
320 return lcd_color_bg;
321 }
322
323 #ifdef CONFIG_LCD_LOGO
lcd_logo_set_cmap(void)324 __weak void lcd_logo_set_cmap(void)
325 {
326 int i;
327 ushort *cmap = configuration_get_cmap();
328
329 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
330 *cmap++ = bmp_logo_palette[i];
331 }
332
lcd_logo_plot(int x,int y)333 void lcd_logo_plot(int x, int y)
334 {
335 ushort i, j;
336 uchar *bmap = &bmp_logo_bitmap[0];
337 unsigned bpix = NBITS(panel_info.vl_bpix);
338 uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
339 ushort *fb16;
340
341 debug("Logo: width %d height %d colors %d\n",
342 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
343
344 if (bpix < 12) {
345 WATCHDOG_RESET();
346 lcd_logo_set_cmap();
347 WATCHDOG_RESET();
348
349 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
350 memcpy(fb, bmap, BMP_LOGO_WIDTH);
351 bmap += BMP_LOGO_WIDTH;
352 fb += panel_info.vl_col;
353 }
354 }
355 else { /* true color mode */
356 u16 col16;
357 fb16 = (ushort *)fb;
358 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
359 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
360 col16 = bmp_logo_palette[(bmap[j]-16)];
361 fb16[j] =
362 ((col16 & 0x000F) << 1) |
363 ((col16 & 0x00F0) << 3) |
364 ((col16 & 0x0F00) << 4);
365 }
366 bmap += BMP_LOGO_WIDTH;
367 fb16 += panel_info.vl_col;
368 }
369 }
370
371 WATCHDOG_RESET();
372 lcd_sync();
373 }
374 #else
lcd_logo_plot(int x,int y)375 static inline void lcd_logo_plot(int x, int y) {}
376 #endif /* CONFIG_LCD_LOGO */
377
378 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
379 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
380
splash_align_axis(int * axis,unsigned long panel_size,unsigned long picture_size)381 static void splash_align_axis(int *axis, unsigned long panel_size,
382 unsigned long picture_size)
383 {
384 unsigned long panel_picture_delta = panel_size - picture_size;
385 unsigned long axis_alignment;
386
387 if (*axis == BMP_ALIGN_CENTER)
388 axis_alignment = panel_picture_delta / 2;
389 else if (*axis < 0)
390 axis_alignment = panel_picture_delta + *axis + 1;
391 else
392 return;
393
394 *axis = max(0, (int)axis_alignment);
395 }
396 #endif
397
398 #ifdef CONFIG_LCD_BMP_RLE8
399 #define BMP_RLE8_ESCAPE 0
400 #define BMP_RLE8_EOL 0
401 #define BMP_RLE8_EOBMP 1
402 #define BMP_RLE8_DELTA 2
403
draw_unencoded_bitmap(ushort ** fbp,uchar * bmap,ushort * cmap,int cnt)404 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
405 int cnt)
406 {
407 while (cnt > 0) {
408 *(*fbp)++ = cmap[*bmap++];
409 cnt--;
410 }
411 }
412
draw_encoded_bitmap(ushort ** fbp,ushort c,int cnt)413 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
414 {
415 ushort *fb = *fbp;
416 int cnt_8copy = cnt >> 3;
417
418 cnt -= cnt_8copy << 3;
419 while (cnt_8copy > 0) {
420 *fb++ = c;
421 *fb++ = c;
422 *fb++ = c;
423 *fb++ = c;
424 *fb++ = c;
425 *fb++ = c;
426 *fb++ = c;
427 *fb++ = c;
428 cnt_8copy--;
429 }
430 while (cnt > 0) {
431 *fb++ = c;
432 cnt--;
433 }
434 *fbp = fb;
435 }
436
437 /*
438 * Do not call this function directly, must be called from lcd_display_bitmap.
439 */
lcd_display_rle8_bitmap(struct bmp_image * bmp,ushort * cmap,uchar * fb,int x_off,int y_off)440 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
441 uchar *fb, int x_off, int y_off)
442 {
443 uchar *bmap;
444 ulong width, height;
445 ulong cnt, runlen;
446 int x, y;
447 int decode = 1;
448
449 width = get_unaligned_le32(&bmp->header.width);
450 height = get_unaligned_le32(&bmp->header.height);
451 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
452
453 x = 0;
454 y = height - 1;
455
456 while (decode) {
457 if (bmap[0] == BMP_RLE8_ESCAPE) {
458 switch (bmap[1]) {
459 case BMP_RLE8_EOL:
460 /* end of line */
461 bmap += 2;
462 x = 0;
463 y--;
464 /* 16bpix, 2-byte per pixel, width should *2 */
465 fb -= (width * 2 + lcd_line_length);
466 break;
467 case BMP_RLE8_EOBMP:
468 /* end of bitmap */
469 decode = 0;
470 break;
471 case BMP_RLE8_DELTA:
472 /* delta run */
473 x += bmap[2];
474 y -= bmap[3];
475 /* 16bpix, 2-byte per pixel, x should *2 */
476 fb = (uchar *) (lcd_base + (y + y_off - 1)
477 * lcd_line_length + (x + x_off) * 2);
478 bmap += 4;
479 break;
480 default:
481 /* unencoded run */
482 runlen = bmap[1];
483 bmap += 2;
484 if (y < height) {
485 if (x < width) {
486 if (x + runlen > width)
487 cnt = width - x;
488 else
489 cnt = runlen;
490 draw_unencoded_bitmap(
491 (ushort **)&fb,
492 bmap, cmap, cnt);
493 }
494 x += runlen;
495 }
496 bmap += runlen;
497 if (runlen & 1)
498 bmap++;
499 }
500 } else {
501 /* encoded run */
502 if (y < height) {
503 runlen = bmap[0];
504 if (x < width) {
505 /* aggregate the same code */
506 while (bmap[0] == 0xff &&
507 bmap[2] != BMP_RLE8_ESCAPE &&
508 bmap[1] == bmap[3]) {
509 runlen += bmap[2];
510 bmap += 2;
511 }
512 if (x + runlen > width)
513 cnt = width - x;
514 else
515 cnt = runlen;
516 draw_encoded_bitmap((ushort **)&fb,
517 cmap[bmap[1]], cnt);
518 }
519 x += runlen;
520 }
521 bmap += 2;
522 }
523 }
524 }
525 #endif
526
fb_put_byte(uchar ** fb,uchar ** from)527 __weak void fb_put_byte(uchar **fb, uchar **from)
528 {
529 *(*fb)++ = *(*from)++;
530 }
531
532 #if defined(CONFIG_BMP_16BPP)
fb_put_word(uchar ** fb,uchar ** from)533 __weak void fb_put_word(uchar **fb, uchar **from)
534 {
535 *(*fb)++ = *(*from)++;
536 *(*fb)++ = *(*from)++;
537 }
538 #endif /* CONFIG_BMP_16BPP */
539
lcd_set_cmap(struct bmp_image * bmp,unsigned colors)540 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
541 {
542 int i;
543 struct bmp_color_table_entry cte;
544 ushort *cmap = configuration_get_cmap();
545
546 for (i = 0; i < colors; ++i) {
547 cte = bmp->color_table[i];
548 *cmap = (((cte.red) << 8) & 0xf800) |
549 (((cte.green) << 3) & 0x07e0) |
550 (((cte.blue) >> 3) & 0x001f);
551 cmap++;
552 }
553 }
554
lcd_display_bitmap(ulong bmp_image,int x,int y)555 int lcd_display_bitmap(ulong bmp_image, int x, int y)
556 {
557 ushort *cmap_base = NULL;
558 ushort i, j;
559 uchar *fb;
560 struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
561 uchar *bmap;
562 ushort padded_width;
563 unsigned long width, height, byte_width;
564 unsigned long pwidth = panel_info.vl_col;
565 unsigned colors, bpix, bmp_bpix;
566 int hdr_size;
567 struct bmp_color_table_entry *palette;
568
569 if (!bmp || !(bmp->header.signature[0] == 'B' &&
570 bmp->header.signature[1] == 'M')) {
571 printf("Error: no valid bmp image at %lx\n", bmp_image);
572
573 return 1;
574 }
575
576 palette = bmp->color_table;
577 width = get_unaligned_le32(&bmp->header.width);
578 height = get_unaligned_le32(&bmp->header.height);
579 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
580 hdr_size = get_unaligned_le16(&bmp->header.size);
581 debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
582
583 colors = 1 << bmp_bpix;
584
585 bpix = NBITS(panel_info.vl_bpix);
586
587 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
588 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
589 bpix, bmp_bpix);
590
591 return 1;
592 }
593
594 /*
595 * We support displaying 8bpp BMPs on 16bpp LCDs
596 * and displaying 24bpp BMPs on 32bpp LCDs
597 * */
598 if (bpix != bmp_bpix &&
599 !(bmp_bpix == 8 && bpix == 16) &&
600 !(bmp_bpix == 24 && bpix == 32)) {
601 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
602 bpix, get_unaligned_le16(&bmp->header.bit_count));
603 return 1;
604 }
605
606 debug("Display-bmp: %d x %d with %d colors, display %d\n",
607 (int)width, (int)height, (int)colors, 1 << bpix);
608
609 if (bmp_bpix == 8)
610 lcd_set_cmap(bmp, colors);
611
612 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
613
614 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
615 splash_align_axis(&x, pwidth, width);
616 splash_align_axis(&y, panel_info.vl_row, height);
617 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
618
619 if ((x + width) > pwidth)
620 width = pwidth - x;
621 if ((y + height) > panel_info.vl_row)
622 height = panel_info.vl_row - y;
623
624 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
625 fb = (uchar *)(lcd_base +
626 (y + height - 1) * lcd_line_length + x * bpix / 8);
627
628 switch (bmp_bpix) {
629 case 1:
630 case 8: {
631 cmap_base = configuration_get_cmap();
632 #ifdef CONFIG_LCD_BMP_RLE8
633 u32 compression = get_unaligned_le32(&bmp->header.compression);
634 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
635 if (compression == BMP_BI_RLE8) {
636 if (bpix != 16) {
637 /* TODO implement render code for bpix != 16 */
638 printf("Error: only support 16 bpix");
639 return 1;
640 }
641 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
642 break;
643 }
644 #endif
645
646 if (bpix != 16)
647 byte_width = width;
648 else
649 byte_width = width * 2;
650
651 for (i = 0; i < height; ++i) {
652 WATCHDOG_RESET();
653 for (j = 0; j < width; j++) {
654 if (bpix != 16) {
655 fb_put_byte(&fb, &bmap);
656 } else {
657 struct bmp_color_table_entry *entry;
658 uint val;
659
660 if (cmap_base) {
661 val = cmap_base[*bmap];
662 } else {
663 entry = &palette[*bmap];
664 val = entry->blue >> 3 |
665 entry->green >> 2 << 5 |
666 entry->red >> 3 << 11;
667 }
668 *(uint16_t *)fb = val;
669 bmap++;
670 fb += sizeof(uint16_t) / sizeof(*fb);
671 }
672 }
673 bmap += (padded_width - width);
674 fb -= byte_width + lcd_line_length;
675 }
676 break;
677 }
678 #if defined(CONFIG_BMP_16BPP)
679 case 16:
680 for (i = 0; i < height; ++i) {
681 WATCHDOG_RESET();
682 for (j = 0; j < width; j++)
683 fb_put_word(&fb, &bmap);
684
685 bmap += (padded_width - width) * 2;
686 fb -= width * 2 + lcd_line_length;
687 }
688 break;
689 #endif /* CONFIG_BMP_16BPP */
690 #if defined(CONFIG_BMP_24BPP)
691 case 24:
692 for (i = 0; i < height; ++i) {
693 for (j = 0; j < width; j++) {
694 *(fb++) = *(bmap++);
695 *(fb++) = *(bmap++);
696 *(fb++) = *(bmap++);
697 *(fb++) = 0;
698 }
699 fb -= lcd_line_length + width * (bpix / 8);
700 }
701 break;
702 #endif /* CONFIG_BMP_24BPP */
703 #if defined(CONFIG_BMP_32BPP)
704 case 32:
705 for (i = 0; i < height; ++i) {
706 for (j = 0; j < width; j++) {
707 *(fb++) = *(bmap++);
708 *(fb++) = *(bmap++);
709 *(fb++) = *(bmap++);
710 *(fb++) = *(bmap++);
711 }
712 fb -= lcd_line_length + width * (bpix / 8);
713 }
714 break;
715 #endif /* CONFIG_BMP_32BPP */
716 default:
717 break;
718 };
719
720 lcd_sync();
721 return 0;
722 }
723 #endif
724
lcd_logo(void)725 static void lcd_logo(void)
726 {
727 lcd_logo_plot(0, 0);
728
729 #ifdef CONFIG_LCD_INFO
730 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
731 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
732 lcd_show_board_info();
733 #endif /* CONFIG_LCD_INFO */
734 }
735
736 #ifdef CONFIG_SPLASHIMAGE_GUARD
on_splashimage(const char * name,const char * value,enum env_op op,int flags)737 static int on_splashimage(const char *name, const char *value, enum env_op op,
738 int flags)
739 {
740 ulong addr;
741 int aligned;
742
743 if (op == env_op_delete)
744 return 0;
745
746 addr = simple_strtoul(value, NULL, 16);
747 /* See README.displaying-bmps */
748 aligned = (addr % 4 == 2);
749 if (!aligned) {
750 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
751 return -1;
752 }
753
754 return 0;
755 }
756
757 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
758 #endif
759
lcd_get_pixel_width(void)760 int lcd_get_pixel_width(void)
761 {
762 return panel_info.vl_col;
763 }
764
lcd_get_pixel_height(void)765 int lcd_get_pixel_height(void)
766 {
767 return panel_info.vl_row;
768 }
769