1 /* 2 * Common LCD routines 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 /* #define DEBUG */ 11 #include <config.h> 12 #include <common.h> 13 #include <command.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 */ 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) && !defined(CONFIG_SYS_DCACHE_OFF) 66 int line_length; 67 68 if (lcd_flush_dcache) 69 flush_dcache_range((u32)lcd_base, 70 (u32)(lcd_base + lcd_get_size(&line_length))); 71 #endif 72 } 73 74 void lcd_set_flush_dcache(int flush) 75 { 76 lcd_flush_dcache = (flush != 0); 77 } 78 79 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 80 { 81 lcd_putc(c); 82 } 83 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 #define N_BLK_VERT 2 93 #define N_BLK_HOR 3 94 95 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 96 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 97 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 98 }; 99 100 static void test_pattern(void) 101 { 102 ushort v_max = panel_info.vl_row; 103 ushort h_max = panel_info.vl_col; 104 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 105 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 106 ushort v, h; 107 uchar *pix = (uchar *)lcd_base; 108 109 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 110 h_max, v_max, h_step, v_step); 111 112 /* WARNING: Code silently assumes 8bit/pixel */ 113 for (v = 0; v < v_max; ++v) { 114 uchar iy = v / v_step; 115 for (h = 0; h < h_max; ++h) { 116 uchar ix = N_BLK_HOR * iy + h / h_step; 117 *pix++ = test_colors[ix]; 118 } 119 } 120 } 121 #endif /* LCD_TEST_PATTERN */ 122 123 /* 124 * With most lcd drivers the line length is set up 125 * by calculating it from panel_info parameters. Some 126 * drivers need to calculate the line length differently, 127 * so make the function weak to allow overriding it. 128 */ 129 __weak int lcd_get_size(int *line_length) 130 { 131 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 132 return *line_length * panel_info.vl_row; 133 } 134 135 int drv_lcd_init(void) 136 { 137 struct stdio_dev lcddev; 138 int rc; 139 140 lcd_base = map_sysmem(gd->fb_base, 0); 141 142 lcd_init(lcd_base); 143 144 /* Device initialization */ 145 memset(&lcddev, 0, sizeof(lcddev)); 146 147 strcpy(lcddev.name, "lcd"); 148 lcddev.ext = 0; /* No extensions */ 149 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 150 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 151 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 152 153 rc = stdio_register(&lcddev); 154 155 return (rc == 0) ? 1 : rc; 156 } 157 158 void lcd_clear(void) 159 { 160 int bg_color; 161 char *s; 162 ulong addr; 163 static int do_splash = 1; 164 #if LCD_BPP == LCD_COLOR8 165 /* Setting the palette */ 166 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 167 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 168 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 169 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 170 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 171 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 172 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 173 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 174 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 175 #endif 176 177 #ifndef CONFIG_SYS_WHITE_ON_BLACK 178 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 179 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 180 bg_color = CONSOLE_COLOR_WHITE; 181 #else 182 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 183 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 184 bg_color = CONSOLE_COLOR_BLACK; 185 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 186 187 #ifdef LCD_TEST_PATTERN 188 test_pattern(); 189 #else 190 /* set framebuffer to background color */ 191 #if (LCD_BPP != LCD_COLOR32) 192 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row); 193 #else 194 u32 *ppix = lcd_base; 195 u32 i; 196 for (i = 0; 197 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 198 i++) { 199 *ppix++ = bg_color; 200 } 201 #endif 202 #endif 203 /* setup text-console */ 204 debug("[LCD] setting up console...\n"); 205 lcd_init_console(lcd_base, 206 panel_info.vl_col, 207 panel_info.vl_row, 208 panel_info.vl_rot); 209 /* Paint the logo and retrieve LCD base address */ 210 debug("[LCD] Drawing the logo...\n"); 211 if (do_splash) { 212 s = getenv("splashimage"); 213 if (s) { 214 do_splash = 0; 215 addr = simple_strtoul(s, NULL, 16); 216 if (lcd_splash(addr) == 0) { 217 lcd_sync(); 218 return; 219 } 220 } 221 } 222 223 lcd_logo(); 224 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 225 addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length; 226 lcd_init_console((void *)addr, panel_info.vl_col, 227 panel_info.vl_row, panel_info.vl_rot); 228 #endif 229 lcd_sync(); 230 } 231 232 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 233 char *const argv[]) 234 { 235 lcd_clear(); 236 return 0; 237 } 238 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", ""); 239 240 static int lcd_init(void *lcdbase) 241 { 242 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 243 lcd_ctrl_init(lcdbase); 244 245 /* 246 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 247 * the 'lcdbase' argument and uses custom lcd base address 248 * by setting up gd->fb_base. Check for this condition and fixup 249 * 'lcd_base' address. 250 */ 251 if (map_to_sysmem(lcdbase) != gd->fb_base) 252 lcd_base = map_sysmem(gd->fb_base, 0); 253 254 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 255 256 lcd_get_size(&lcd_line_length); 257 lcd_is_enabled = 1; 258 lcd_clear(); 259 lcd_enable(); 260 261 /* Initialize the console */ 262 lcd_set_col(0); 263 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 264 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 265 #else 266 lcd_set_row(1); /* leave 1 blank line below logo */ 267 #endif 268 269 return 0; 270 } 271 272 /* 273 * This is called early in the system initialization to grab memory 274 * for the LCD controller. 275 * Returns new address for monitor, after reserving LCD buffer memory 276 * 277 * Note that this is running from ROM, so no write access to global data. 278 */ 279 ulong lcd_setmem(ulong addr) 280 { 281 ulong size; 282 int line_length; 283 284 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 285 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 286 287 size = lcd_get_size(&line_length); 288 289 /* Round up to nearest full page, or MMU section if defined */ 290 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 291 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 292 293 /* Allocate pages for the frame buffer. */ 294 addr -= size; 295 296 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 297 size >> 10, addr); 298 299 return addr; 300 } 301 302 static void lcd_setfgcolor(int color) 303 { 304 lcd_color_fg = color; 305 } 306 307 int lcd_getfgcolor(void) 308 { 309 return lcd_color_fg; 310 } 311 312 static void lcd_setbgcolor(int color) 313 { 314 lcd_color_bg = color; 315 } 316 317 int lcd_getbgcolor(void) 318 { 319 return lcd_color_bg; 320 } 321 322 #ifdef CONFIG_LCD_LOGO 323 __weak void lcd_logo_set_cmap(void) 324 { 325 int i; 326 ushort *cmap = configuration_get_cmap(); 327 328 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) 329 *cmap++ = bmp_logo_palette[i]; 330 } 331 332 void lcd_logo_plot(int x, int y) 333 { 334 ushort i, j; 335 uchar *bmap = &bmp_logo_bitmap[0]; 336 unsigned bpix = NBITS(panel_info.vl_bpix); 337 uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 338 ushort *fb16; 339 340 debug("Logo: width %d height %d colors %d\n", 341 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS); 342 343 if (bpix < 12) { 344 WATCHDOG_RESET(); 345 lcd_logo_set_cmap(); 346 WATCHDOG_RESET(); 347 348 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 349 memcpy(fb, bmap, BMP_LOGO_WIDTH); 350 bmap += BMP_LOGO_WIDTH; 351 fb += panel_info.vl_col; 352 } 353 } 354 else { /* true color mode */ 355 u16 col16; 356 fb16 = (ushort *)fb; 357 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 358 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 359 col16 = bmp_logo_palette[(bmap[j]-16)]; 360 fb16[j] = 361 ((col16 & 0x000F) << 1) | 362 ((col16 & 0x00F0) << 3) | 363 ((col16 & 0x0F00) << 4); 364 } 365 bmap += BMP_LOGO_WIDTH; 366 fb16 += panel_info.vl_col; 367 } 368 } 369 370 WATCHDOG_RESET(); 371 lcd_sync(); 372 } 373 #else 374 static inline void lcd_logo_plot(int x, int y) {} 375 #endif /* CONFIG_LCD_LOGO */ 376 377 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 378 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 379 #define BMP_ALIGN_CENTER 0x7FFF 380 381 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 2 403 404 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 } 412 413 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 */ 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 526 527 __weak void fb_put_byte(uchar **fb, uchar **from) 528 { 529 *(*fb)++ = *(*from)++; 530 } 531 532 #if defined(CONFIG_BMP_16BPP) 533 __weak void fb_put_word(uchar **fb, uchar **from) 534 { 535 *(*fb)++ = *(*from)++; 536 *(*fb)++ = *(*from)++; 537 } 538 #endif /* CONFIG_BMP_16BPP */ 539 540 __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 #if defined(CONFIG_MPC823) 552 cmap--; 553 #else 554 cmap++; 555 #endif 556 } 557 } 558 559 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 = bmp->color_table; 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 width = get_unaligned_le32(&bmp->header.width); 581 height = get_unaligned_le32(&bmp->header.height); 582 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 583 hdr_size = get_unaligned_le16(&bmp->header.size); 584 debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix); 585 586 colors = 1 << bmp_bpix; 587 588 bpix = NBITS(panel_info.vl_bpix); 589 590 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 591 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 592 bpix, bmp_bpix); 593 594 return 1; 595 } 596 597 /* 598 * We support displaying 8bpp BMPs on 16bpp LCDs 599 * and displaying 24bpp BMPs on 32bpp LCDs 600 * */ 601 if (bpix != bmp_bpix && 602 !(bmp_bpix == 8 && bpix == 16) && 603 !(bmp_bpix == 24 && bpix == 32)) { 604 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 605 bpix, get_unaligned_le16(&bmp->header.bit_count)); 606 return 1; 607 } 608 609 debug("Display-bmp: %d x %d with %d colors, display %d\n", 610 (int)width, (int)height, (int)colors, 1 << bpix); 611 612 if (bmp_bpix == 8) 613 lcd_set_cmap(bmp, colors); 614 615 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 616 617 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 618 splash_align_axis(&x, pwidth, width); 619 splash_align_axis(&y, panel_info.vl_row, height); 620 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 621 622 if ((x + width) > pwidth) 623 width = pwidth - x; 624 if ((y + height) > panel_info.vl_row) 625 height = panel_info.vl_row - y; 626 627 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 628 fb = (uchar *)(lcd_base + 629 (y + height - 1) * lcd_line_length + x * bpix / 8); 630 631 switch (bmp_bpix) { 632 case 1: 633 case 8: { 634 cmap_base = configuration_get_cmap(); 635 #ifdef CONFIG_LCD_BMP_RLE8 636 u32 compression = get_unaligned_le32(&bmp->header.compression); 637 debug("compressed %d %d\n", compression, BMP_BI_RLE8); 638 if (compression == BMP_BI_RLE8) { 639 if (bpix != 16) { 640 /* TODO implement render code for bpix != 16 */ 641 printf("Error: only support 16 bpix"); 642 return 1; 643 } 644 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 645 break; 646 } 647 #endif 648 649 if (bpix != 16) 650 byte_width = width; 651 else 652 byte_width = width * 2; 653 654 for (i = 0; i < height; ++i) { 655 WATCHDOG_RESET(); 656 for (j = 0; j < width; j++) { 657 if (bpix != 16) { 658 fb_put_byte(&fb, &bmap); 659 } else { 660 struct bmp_color_table_entry *entry; 661 uint val; 662 663 if (cmap_base) { 664 val = cmap_base[*bmap]; 665 } else { 666 entry = &palette[*bmap]; 667 val = entry->blue >> 3 | 668 entry->green >> 2 << 5 | 669 entry->red >> 3 << 11; 670 } 671 *(uint16_t *)fb = val; 672 bmap++; 673 fb += sizeof(uint16_t) / sizeof(*fb); 674 } 675 } 676 bmap += (padded_width - width); 677 fb -= byte_width + lcd_line_length; 678 } 679 break; 680 } 681 #if defined(CONFIG_BMP_16BPP) 682 case 16: 683 for (i = 0; i < height; ++i) { 684 WATCHDOG_RESET(); 685 for (j = 0; j < width; j++) 686 fb_put_word(&fb, &bmap); 687 688 bmap += (padded_width - width) * 2; 689 fb -= width * 2 + lcd_line_length; 690 } 691 break; 692 #endif /* CONFIG_BMP_16BPP */ 693 #if defined(CONFIG_BMP_24BMP) 694 case 24: 695 for (i = 0; i < height; ++i) { 696 for (j = 0; j < width; j++) { 697 *(fb++) = *(bmap++); 698 *(fb++) = *(bmap++); 699 *(fb++) = *(bmap++); 700 *(fb++) = 0; 701 } 702 fb -= lcd_line_length + width * (bpix / 8); 703 } 704 break; 705 #endif /* CONFIG_BMP_24BMP */ 706 #if defined(CONFIG_BMP_32BPP) 707 case 32: 708 for (i = 0; i < height; ++i) { 709 for (j = 0; j < width; j++) { 710 *(fb++) = *(bmap++); 711 *(fb++) = *(bmap++); 712 *(fb++) = *(bmap++); 713 *(fb++) = *(bmap++); 714 } 715 fb -= lcd_line_length + width * (bpix / 8); 716 } 717 break; 718 #endif /* CONFIG_BMP_32BPP */ 719 default: 720 break; 721 }; 722 723 lcd_sync(); 724 return 0; 725 } 726 #endif 727 728 static void lcd_logo(void) 729 { 730 lcd_logo_plot(0, 0); 731 732 #ifdef CONFIG_LCD_INFO 733 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 734 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 735 lcd_show_board_info(); 736 #endif /* CONFIG_LCD_INFO */ 737 } 738 739 #ifdef CONFIG_SPLASHIMAGE_GUARD 740 static int on_splashimage(const char *name, const char *value, enum env_op op, 741 int flags) 742 { 743 ulong addr; 744 int aligned; 745 746 if (op == env_op_delete) 747 return 0; 748 749 addr = simple_strtoul(value, NULL, 16); 750 /* See README.displaying-bmps */ 751 aligned = (addr % 4 == 2); 752 if (!aligned) { 753 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 754 return -1; 755 } 756 757 return 0; 758 } 759 760 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 761 #endif 762 763 int lcd_get_pixel_width(void) 764 { 765 return panel_info.vl_col; 766 } 767 768 int lcd_get_pixel_height(void) 769 { 770 return panel_info.vl_row; 771 } 772