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 <log.h>
16 #include <asm/cache.h>
17 #include <init.h>
18 #include <asm/global_data.h>
19 #include <linux/types.h>
20 #include <stdio_dev.h>
21 #include <lcd.h>
22 #include <mapmem.h>
23 #include <watchdog.h>
24 #include <asm/unaligned.h>
25 #include <splash.h>
26 #include <asm/io.h>
27 #include <asm/unaligned.h>
28 #include <video_font.h>
29
30 #ifdef CONFIG_LCD_LOGO
31 #include <bmp_logo.h>
32 #include <bmp_logo_data.h>
33 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
34 #error Default Color Map overlaps with Logo Color Map
35 #endif
36 #endif
37
38 #ifndef CONFIG_LCD_ALIGNMENT
39 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
40 #endif
41
42 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
43 (LCD_BPP != LCD_COLOR32)
44 #error Unsupported LCD BPP.
45 #endif
46
47 DECLARE_GLOBAL_DATA_PTR;
48
49 static int lcd_init(void *lcdbase);
50 static void lcd_logo(void);
51 static void lcd_setfgcolor(int color);
52 static void lcd_setbgcolor(int color);
53
54 static int lcd_color_fg;
55 static int lcd_color_bg;
56 int lcd_line_length;
57 char lcd_is_enabled = 0;
58 static void *lcd_base; /* Start of framebuffer memory */
59 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */
60
61 /* Flush LCD activity to the caches */
lcd_sync(void)62 void lcd_sync(void)
63 {
64 /*
65 * flush_dcache_range() is declared in common.h but it seems that some
66 * architectures do not actually implement it. Is there a way to find
67 * out whether it exists? For now, ARM is safe.
68 */
69 #if defined(CONFIG_ARM) && !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
70 int line_length;
71
72 if (lcd_flush_dcache)
73 flush_dcache_range((ulong)lcd_base,
74 (ulong)(lcd_base + lcd_get_size(&line_length)));
75 #endif
76 }
77
lcd_set_flush_dcache(int flush)78 void lcd_set_flush_dcache(int flush)
79 {
80 lcd_flush_dcache = (flush != 0);
81 }
82
lcd_stub_putc(struct stdio_dev * dev,const char c)83 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
84 {
85 lcd_putc(c);
86 }
87
lcd_stub_puts(struct stdio_dev * dev,const char * s)88 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
89 {
90 lcd_puts(s);
91 }
92
93 /* Small utility to check that you got the colours right */
94 #ifdef LCD_TEST_PATTERN
95
96 #if LCD_BPP == LCD_COLOR8
97 #define N_BLK_VERT 2
98 #define N_BLK_HOR 3
99
100 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
101 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW,
102 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN,
103 }; /*LCD_BPP == LCD_COLOR8 */
104
105 #elif LCD_BPP == LCD_COLOR16
106 #define N_BLK_VERT 2
107 #define N_BLK_HOR 4
108
109 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
110 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, CONSOLE_COLOR_BLUE,
111 CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, CONSOLE_COLOR_GREY, CONSOLE_COLOR_WHITE,
112 };
113 #endif /*LCD_BPP == LCD_COLOR16 */
114
test_pattern(void)115 static void test_pattern(void)
116 {
117 ushort v_max = panel_info.vl_row;
118 ushort h_max = panel_info.vl_col;
119 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
120 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR;
121 ushort v, h;
122 #if LCD_BPP == LCD_COLOR8
123 uchar *pix = (uchar *)lcd_base;
124 #elif LCD_BPP == LCD_COLOR16
125 ushort *pix = (ushort *)lcd_base;
126 #endif
127
128 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
129 h_max, v_max, h_step, v_step);
130
131 for (v = 0; v < v_max; ++v) {
132 uchar iy = v / v_step;
133 for (h = 0; h < h_max; ++h) {
134 uchar ix = N_BLK_HOR * iy + h / h_step;
135 *pix++ = test_colors[ix];
136 }
137 }
138 }
139 #endif /* LCD_TEST_PATTERN */
140
141 /*
142 * With most lcd drivers the line length is set up
143 * by calculating it from panel_info parameters. Some
144 * drivers need to calculate the line length differently,
145 * so make the function weak to allow overriding it.
146 */
lcd_get_size(int * line_length)147 __weak int lcd_get_size(int *line_length)
148 {
149 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
150 return *line_length * panel_info.vl_row;
151 }
152
drv_lcd_init(void)153 int drv_lcd_init(void)
154 {
155 struct stdio_dev lcddev;
156 int rc;
157
158 lcd_base = map_sysmem(gd->fb_base, 0);
159
160 lcd_init(lcd_base);
161
162 /* Device initialization */
163 memset(&lcddev, 0, sizeof(lcddev));
164
165 strcpy(lcddev.name, "lcd");
166 lcddev.ext = 0; /* No extensions */
167 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */
168 lcddev.putc = lcd_stub_putc; /* 'putc' function */
169 lcddev.puts = lcd_stub_puts; /* 'puts' function */
170
171 rc = stdio_register(&lcddev);
172
173 return (rc == 0) ? 1 : rc;
174 }
175
lcd_clear(void)176 void lcd_clear(void)
177 {
178 int bg_color;
179 __maybe_unused ulong addr;
180 static int do_splash = 1;
181 #if LCD_BPP == LCD_COLOR8
182 /* Setting the palette */
183 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
184 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
185 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
186 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
187 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
188 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
189 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
190 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
191 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
192 #endif
193
194 #ifndef CONFIG_SYS_WHITE_ON_BLACK
195 lcd_setfgcolor(CONSOLE_COLOR_BLACK);
196 lcd_setbgcolor(CONSOLE_COLOR_WHITE);
197 bg_color = CONSOLE_COLOR_WHITE;
198 #else
199 lcd_setfgcolor(CONSOLE_COLOR_WHITE);
200 lcd_setbgcolor(CONSOLE_COLOR_BLACK);
201 bg_color = CONSOLE_COLOR_BLACK;
202 #endif /* CONFIG_SYS_WHITE_ON_BLACK */
203
204 #ifdef LCD_TEST_PATTERN
205 test_pattern();
206 #else
207 /* set framebuffer to background color */
208 #if (LCD_BPP != LCD_COLOR32)
209 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
210 #else
211 u32 *ppix = lcd_base;
212 u32 i;
213 for (i = 0;
214 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
215 i++) {
216 *ppix++ = bg_color;
217 }
218 #endif
219 #endif
220 /* setup text-console */
221 debug("[LCD] setting up console...\n");
222 lcd_init_console(lcd_base,
223 panel_info.vl_col,
224 panel_info.vl_row,
225 panel_info.vl_rot);
226 /* Paint the logo and retrieve LCD base address */
227 debug("[LCD] Drawing the logo...\n");
228 if (do_splash) {
229 if (splash_display() == 0) {
230 do_splash = 0;
231 lcd_sync();
232 return;
233 }
234 }
235
236 lcd_logo();
237 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
238 addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
239 lcd_init_console((void *)addr, panel_info.vl_col,
240 panel_info.vl_row, panel_info.vl_rot);
241 #endif
242 lcd_sync();
243 }
244
lcd_init(void * lcdbase)245 static int lcd_init(void *lcdbase)
246 {
247 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
248 lcd_ctrl_init(lcdbase);
249
250 /*
251 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
252 * the 'lcdbase' argument and uses custom lcd base address
253 * by setting up gd->fb_base. Check for this condition and fixup
254 * 'lcd_base' address.
255 */
256 if (map_to_sysmem(lcdbase) != gd->fb_base)
257 lcd_base = map_sysmem(gd->fb_base, 0);
258
259 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
260
261 lcd_get_size(&lcd_line_length);
262 lcd_is_enabled = 1;
263 lcd_clear();
264 lcd_enable();
265
266 /* Initialize the console */
267 lcd_set_col(0);
268 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
269 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
270 #else
271 lcd_set_row(1); /* leave 1 blank line below logo */
272 #endif
273
274 return 0;
275 }
276
277 /*
278 * This is called early in the system initialization to grab memory
279 * for the LCD controller.
280 * Returns new address for monitor, after reserving LCD buffer memory
281 *
282 * Note that this is running from ROM, so no write access to global data.
283 */
lcd_setmem(ulong addr)284 ulong lcd_setmem(ulong addr)
285 {
286 ulong size;
287 int line_length;
288
289 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
290 panel_info.vl_row, NBITS(panel_info.vl_bpix));
291
292 size = lcd_get_size(&line_length);
293
294 /* Round up to nearest full page, or MMU section if defined */
295 size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
296 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
297
298 /* Allocate pages for the frame buffer. */
299 addr -= size;
300
301 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
302 size >> 10, addr);
303
304 return addr;
305 }
306
lcd_setfgcolor(int color)307 static void lcd_setfgcolor(int color)
308 {
309 lcd_color_fg = color;
310 }
311
lcd_getfgcolor(void)312 int lcd_getfgcolor(void)
313 {
314 return lcd_color_fg;
315 }
316
lcd_setbgcolor(int color)317 static void lcd_setbgcolor(int color)
318 {
319 lcd_color_bg = color;
320 }
321
lcd_getbgcolor(void)322 int lcd_getbgcolor(void)
323 {
324 return lcd_color_bg;
325 }
326
327 #ifdef CONFIG_LCD_LOGO
lcd_logo_set_cmap(void)328 __weak void lcd_logo_set_cmap(void)
329 {
330 int i;
331 ushort *cmap = configuration_get_cmap();
332
333 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
334 *cmap++ = bmp_logo_palette[i];
335 }
336
lcd_logo_plot(int x,int y)337 void lcd_logo_plot(int x, int y)
338 {
339 ushort i, j;
340 uchar *bmap = &bmp_logo_bitmap[0];
341 unsigned bpix = NBITS(panel_info.vl_bpix);
342 uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
343 ushort *fb16;
344
345 debug("Logo: width %d height %d colors %d\n",
346 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
347
348 if (bpix < 12) {
349 WATCHDOG_RESET();
350 lcd_logo_set_cmap();
351 WATCHDOG_RESET();
352
353 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
354 memcpy(fb, bmap, BMP_LOGO_WIDTH);
355 bmap += BMP_LOGO_WIDTH;
356 fb += panel_info.vl_col;
357 }
358 }
359 else { /* true color mode */
360 u16 col16;
361 fb16 = (ushort *)fb;
362 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
363 for (j = 0; j < BMP_LOGO_WIDTH; j++) {
364 col16 = bmp_logo_palette[(bmap[j]-16)];
365 fb16[j] =
366 ((col16 & 0x000F) << 1) |
367 ((col16 & 0x00F0) << 3) |
368 ((col16 & 0x0F00) << 4);
369 }
370 bmap += BMP_LOGO_WIDTH;
371 fb16 += panel_info.vl_col;
372 }
373 }
374
375 WATCHDOG_RESET();
376 lcd_sync();
377 }
378 #else
lcd_logo_plot(int x,int y)379 static inline void lcd_logo_plot(int x, int y) {}
380 #endif /* CONFIG_LCD_LOGO */
381
382 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
383 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
384
splash_align_axis(int * axis,unsigned long panel_size,unsigned long picture_size)385 static void splash_align_axis(int *axis, unsigned long panel_size,
386 unsigned long picture_size)
387 {
388 unsigned long panel_picture_delta = panel_size - picture_size;
389 unsigned long axis_alignment;
390
391 if (*axis == BMP_ALIGN_CENTER)
392 axis_alignment = panel_picture_delta / 2;
393 else if (*axis < 0)
394 axis_alignment = panel_picture_delta + *axis + 1;
395 else
396 return;
397
398 *axis = max(0, (int)axis_alignment);
399 }
400 #endif
401
402 #ifdef CONFIG_LCD_BMP_RLE8
403 #define BMP_RLE8_ESCAPE 0
404 #define BMP_RLE8_EOL 0
405 #define BMP_RLE8_EOBMP 1
406 #define BMP_RLE8_DELTA 2
407
draw_unencoded_bitmap(ushort ** fbp,uchar * bmap,ushort * cmap,int cnt)408 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
409 int cnt)
410 {
411 while (cnt > 0) {
412 *(*fbp)++ = cmap[*bmap++];
413 cnt--;
414 }
415 }
416
draw_encoded_bitmap(ushort ** fbp,ushort c,int cnt)417 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
418 {
419 ushort *fb = *fbp;
420 int cnt_8copy = cnt >> 3;
421
422 cnt -= cnt_8copy << 3;
423 while (cnt_8copy > 0) {
424 *fb++ = c;
425 *fb++ = c;
426 *fb++ = c;
427 *fb++ = c;
428 *fb++ = c;
429 *fb++ = c;
430 *fb++ = c;
431 *fb++ = c;
432 cnt_8copy--;
433 }
434 while (cnt > 0) {
435 *fb++ = c;
436 cnt--;
437 }
438 *fbp = fb;
439 }
440
441 /*
442 * Do not call this function directly, must be called from lcd_display_bitmap.
443 */
lcd_display_rle8_bitmap(struct bmp_image * bmp,ushort * cmap,uchar * fb,int x_off,int y_off)444 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
445 uchar *fb, int x_off, int y_off)
446 {
447 uchar *bmap;
448 ulong width, height;
449 ulong cnt, runlen;
450 int x, y;
451 int decode = 1;
452
453 width = get_unaligned_le32(&bmp->header.width);
454 height = get_unaligned_le32(&bmp->header.height);
455 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
456
457 x = 0;
458 y = height - 1;
459
460 while (decode) {
461 if (bmap[0] == BMP_RLE8_ESCAPE) {
462 switch (bmap[1]) {
463 case BMP_RLE8_EOL:
464 /* end of line */
465 bmap += 2;
466 x = 0;
467 y--;
468 /* 16bpix, 2-byte per pixel, width should *2 */
469 fb -= (width * 2 + lcd_line_length);
470 break;
471 case BMP_RLE8_EOBMP:
472 /* end of bitmap */
473 decode = 0;
474 break;
475 case BMP_RLE8_DELTA:
476 /* delta run */
477 x += bmap[2];
478 y -= bmap[3];
479 /* 16bpix, 2-byte per pixel, x should *2 */
480 fb = (uchar *) (lcd_base + (y + y_off - 1)
481 * lcd_line_length + (x + x_off) * 2);
482 bmap += 4;
483 break;
484 default:
485 /* unencoded run */
486 runlen = bmap[1];
487 bmap += 2;
488 if (y < height) {
489 if (x < width) {
490 if (x + runlen > width)
491 cnt = width - x;
492 else
493 cnt = runlen;
494 draw_unencoded_bitmap(
495 (ushort **)&fb,
496 bmap, cmap, cnt);
497 }
498 x += runlen;
499 }
500 bmap += runlen;
501 if (runlen & 1)
502 bmap++;
503 }
504 } else {
505 /* encoded run */
506 if (y < height) {
507 runlen = bmap[0];
508 if (x < width) {
509 /* aggregate the same code */
510 while (bmap[0] == 0xff &&
511 bmap[2] != BMP_RLE8_ESCAPE &&
512 bmap[1] == bmap[3]) {
513 runlen += bmap[2];
514 bmap += 2;
515 }
516 if (x + runlen > width)
517 cnt = width - x;
518 else
519 cnt = runlen;
520 draw_encoded_bitmap((ushort **)&fb,
521 cmap[bmap[1]], cnt);
522 }
523 x += runlen;
524 }
525 bmap += 2;
526 }
527 }
528 }
529 #endif
530
fb_put_byte(uchar ** fb,uchar ** from)531 __weak void fb_put_byte(uchar **fb, uchar **from)
532 {
533 *(*fb)++ = *(*from)++;
534 }
535
536 #if defined(CONFIG_BMP_16BPP)
fb_put_word(uchar ** fb,uchar ** from)537 __weak void fb_put_word(uchar **fb, uchar **from)
538 {
539 *(*fb)++ = *(*from)++;
540 *(*fb)++ = *(*from)++;
541 }
542 #endif /* CONFIG_BMP_16BPP */
543
lcd_set_cmap(struct bmp_image * bmp,unsigned colors)544 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
545 {
546 int i;
547 struct bmp_color_table_entry cte;
548 ushort *cmap = configuration_get_cmap();
549
550 for (i = 0; i < colors; ++i) {
551 cte = bmp->color_table[i];
552 *cmap = (((cte.red) << 8) & 0xf800) |
553 (((cte.green) << 3) & 0x07e0) |
554 (((cte.blue) >> 3) & 0x001f);
555 cmap++;
556 }
557 }
558
lcd_display_bitmap(ulong bmp_image,int x,int y)559 int lcd_display_bitmap(ulong bmp_image, int x, int y)
560 {
561 ushort *cmap_base = NULL;
562 ushort i, j;
563 uchar *fb;
564 struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
565 uchar *bmap;
566 ushort padded_width;
567 unsigned long width, height, byte_width;
568 unsigned long pwidth = panel_info.vl_col;
569 unsigned colors, bpix, bmp_bpix;
570 int hdr_size;
571 struct bmp_color_table_entry *palette;
572
573 if (!bmp || !(bmp->header.signature[0] == 'B' &&
574 bmp->header.signature[1] == 'M')) {
575 printf("Error: no valid bmp image at %lx\n", bmp_image);
576
577 return 1;
578 }
579
580 palette = bmp->color_table;
581 width = get_unaligned_le32(&bmp->header.width);
582 height = get_unaligned_le32(&bmp->header.height);
583 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
584 hdr_size = get_unaligned_le16(&bmp->header.size);
585 debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
586
587 colors = 1 << bmp_bpix;
588
589 bpix = NBITS(panel_info.vl_bpix);
590
591 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
592 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
593 bpix, bmp_bpix);
594
595 return 1;
596 }
597
598 /*
599 * We support displaying 8bpp BMPs on 16bpp LCDs
600 * and displaying 24bpp BMPs on 32bpp LCDs
601 * */
602 if (bpix != bmp_bpix &&
603 !(bmp_bpix == 8 && bpix == 16) &&
604 !(bmp_bpix == 24 && bpix == 32)) {
605 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
606 bpix, get_unaligned_le16(&bmp->header.bit_count));
607 return 1;
608 }
609
610 debug("Display-bmp: %d x %d with %d colors, display %d\n",
611 (int)width, (int)height, (int)colors, 1 << bpix);
612
613 if (bmp_bpix == 8)
614 lcd_set_cmap(bmp, colors);
615
616 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
617
618 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
619 splash_align_axis(&x, pwidth, width);
620 splash_align_axis(&y, panel_info.vl_row, height);
621 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
622
623 if ((x + width) > pwidth)
624 width = pwidth - x;
625 if ((y + height) > panel_info.vl_row)
626 height = panel_info.vl_row - y;
627
628 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
629 fb = (uchar *)(lcd_base +
630 (y + height - 1) * lcd_line_length + x * bpix / 8);
631
632 switch (bmp_bpix) {
633 case 1:
634 case 8: {
635 cmap_base = configuration_get_cmap();
636 #ifdef CONFIG_LCD_BMP_RLE8
637 u32 compression = get_unaligned_le32(&bmp->header.compression);
638 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
639 if (compression == BMP_BI_RLE8) {
640 if (bpix != 16) {
641 /* TODO implement render code for bpix != 16 */
642 printf("Error: only support 16 bpix");
643 return 1;
644 }
645 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
646 break;
647 }
648 #endif
649
650 if (bpix != 16)
651 byte_width = width;
652 else
653 byte_width = width * 2;
654
655 for (i = 0; i < height; ++i) {
656 WATCHDOG_RESET();
657 for (j = 0; j < width; j++) {
658 if (bpix != 16) {
659 fb_put_byte(&fb, &bmap);
660 } else {
661 struct bmp_color_table_entry *entry;
662 uint val;
663
664 if (cmap_base) {
665 val = cmap_base[*bmap];
666 } else {
667 entry = &palette[*bmap];
668 val = entry->blue >> 3 |
669 entry->green >> 2 << 5 |
670 entry->red >> 3 << 11;
671 }
672 *(uint16_t *)fb = val;
673 bmap++;
674 fb += sizeof(uint16_t) / sizeof(*fb);
675 }
676 }
677 bmap += (padded_width - width);
678 fb -= byte_width + lcd_line_length;
679 }
680 break;
681 }
682 #if defined(CONFIG_BMP_16BPP)
683 case 16:
684 for (i = 0; i < height; ++i) {
685 WATCHDOG_RESET();
686 for (j = 0; j < width; j++)
687 fb_put_word(&fb, &bmap);
688
689 bmap += (padded_width - width) * 2;
690 fb -= width * 2 + lcd_line_length;
691 }
692 break;
693 #endif /* CONFIG_BMP_16BPP */
694 #if defined(CONFIG_BMP_24BPP)
695 case 24:
696 for (i = 0; i < height; ++i) {
697 for (j = 0; j < width; j++) {
698 *(fb++) = *(bmap++);
699 *(fb++) = *(bmap++);
700 *(fb++) = *(bmap++);
701 *(fb++) = 0;
702 }
703 fb -= lcd_line_length + width * (bpix / 8);
704 }
705 break;
706 #endif /* CONFIG_BMP_24BPP */
707 #if defined(CONFIG_BMP_32BPP)
708 case 32:
709 for (i = 0; i < height; ++i) {
710 for (j = 0; j < width; j++) {
711 *(fb++) = *(bmap++);
712 *(fb++) = *(bmap++);
713 *(fb++) = *(bmap++);
714 *(fb++) = *(bmap++);
715 }
716 fb -= lcd_line_length + width * (bpix / 8);
717 }
718 break;
719 #endif /* CONFIG_BMP_32BPP */
720 default:
721 break;
722 };
723
724 lcd_sync();
725 return 0;
726 }
727 #endif
728
lcd_logo(void)729 static void lcd_logo(void)
730 {
731 lcd_logo_plot(0, 0);
732
733 #ifdef CONFIG_LCD_INFO
734 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
735 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
736 lcd_show_board_info();
737 #endif /* CONFIG_LCD_INFO */
738 }
739
740 #ifdef CONFIG_SPLASHIMAGE_GUARD
on_splashimage(const char * name,const char * value,enum env_op op,int flags)741 static int on_splashimage(const char *name, const char *value, enum env_op op,
742 int flags)
743 {
744 ulong addr;
745 int aligned;
746
747 if (op == env_op_delete)
748 return 0;
749
750 addr = simple_strtoul(value, NULL, 16);
751 /* See README.displaying-bmps */
752 aligned = (addr % 4 == 2);
753 if (!aligned) {
754 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
755 return -1;
756 }
757
758 return 0;
759 }
760
761 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
762 #endif
763
lcd_get_pixel_width(void)764 int lcd_get_pixel_width(void)
765 {
766 return panel_info.vl_col;
767 }
768
lcd_get_pixel_height(void)769 int lcd_get_pixel_height(void)
770 {
771 return panel_info.vl_row;
772 }
773