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 (at) denx.de 7 */ 8 9 /* #define DEBUG */ 10 #include <config.h> 11 #include <common.h> 12 #include <command.h> 13 #include <env_callback.h> 14 #include <linux/types.h> 15 #include <stdio_dev.h> 16 #include <lcd.h> 17 #include <mapmem.h> 18 #include <watchdog.h> 19 #include <asm/unaligned.h> 20 #include <splash.h> 21 #include <asm/io.h> 22 #include <asm/unaligned.h> 23 #include <video_font.h> 24 25 #ifdef CONFIG_LCD_LOGO 26 #include <bmp_logo.h> 27 #include <bmp_logo_data.h> 28 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 29 #error Default Color Map overlaps with Logo Color Map 30 #endif 31 #endif 32 33 #ifndef CONFIG_LCD_ALIGNMENT 34 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 35 #endif 36 37 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \ 38 (LCD_BPP != LCD_COLOR32) 39 #error Unsupported LCD BPP. 40 #endif 41 42 DECLARE_GLOBAL_DATA_PTR; 43 44 static int lcd_init(void *lcdbase); 45 static void lcd_logo(void); 46 static void lcd_setfgcolor(int color); 47 static void lcd_setbgcolor(int color); 48 49 static int lcd_color_fg; 50 static int lcd_color_bg; 51 int lcd_line_length; 52 char lcd_is_enabled = 0; 53 static void *lcd_base; /* Start of framebuffer memory */ 54 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 55 56 /* Flush LCD activity to the caches */ 57 void lcd_sync(void) 58 { 59 /* 60 * flush_dcache_range() is declared in common.h but it seems that some 61 * architectures do not actually implement it. Is there a way to find 62 * out whether it exists? For now, ARM is safe. 63 */ 64 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 65 int line_length; 66 67 if (lcd_flush_dcache) 68 flush_dcache_range((ulong)lcd_base, 69 (ulong)(lcd_base + lcd_get_size(&line_length))); 70 #endif 71 } 72 73 void lcd_set_flush_dcache(int flush) 74 { 75 lcd_flush_dcache = (flush != 0); 76 } 77 78 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 79 { 80 lcd_putc(c); 81 } 82 83 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 84 { 85 lcd_puts(s); 86 } 87 88 /* Small utility to check that you got the colours right */ 89 #ifdef LCD_TEST_PATTERN 90 91 #if LCD_BPP == LCD_COLOR8 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 }; /*LCD_BPP == LCD_COLOR8 */ 99 100 #elif LCD_BPP == LCD_COLOR16 101 #define N_BLK_VERT 2 102 #define N_BLK_HOR 4 103 104 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 105 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, CONSOLE_COLOR_BLUE, 106 CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, CONSOLE_COLOR_GREY, CONSOLE_COLOR_WHITE, 107 }; 108 #endif /*LCD_BPP == LCD_COLOR16 */ 109 110 static void test_pattern(void) 111 { 112 ushort v_max = panel_info.vl_row; 113 ushort h_max = panel_info.vl_col; 114 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 115 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 116 ushort v, h; 117 #if LCD_BPP == LCD_COLOR8 118 uchar *pix = (uchar *)lcd_base; 119 #elif LCD_BPP == LCD_COLOR16 120 ushort *pix = (ushort *)lcd_base; 121 #endif 122 123 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 124 h_max, v_max, h_step, v_step); 125 126 for (v = 0; v < v_max; ++v) { 127 uchar iy = v / v_step; 128 for (h = 0; h < h_max; ++h) { 129 uchar ix = N_BLK_HOR * iy + h / h_step; 130 *pix++ = test_colors[ix]; 131 } 132 } 133 } 134 #endif /* LCD_TEST_PATTERN */ 135 136 /* 137 * With most lcd drivers the line length is set up 138 * by calculating it from panel_info parameters. Some 139 * drivers need to calculate the line length differently, 140 * so make the function weak to allow overriding it. 141 */ 142 __weak int lcd_get_size(int *line_length) 143 { 144 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 145 return *line_length * panel_info.vl_row; 146 } 147 148 int drv_lcd_init(void) 149 { 150 struct stdio_dev lcddev; 151 int rc; 152 153 lcd_base = map_sysmem(gd->fb_base, 0); 154 155 lcd_init(lcd_base); 156 157 /* Device initialization */ 158 memset(&lcddev, 0, sizeof(lcddev)); 159 160 strcpy(lcddev.name, "lcd"); 161 lcddev.ext = 0; /* No extensions */ 162 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 163 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 164 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 165 166 rc = stdio_register(&lcddev); 167 168 return (rc == 0) ? 1 : rc; 169 } 170 171 void lcd_clear(void) 172 { 173 int bg_color; 174 char *s; 175 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 s = env_get("splashimage"); 226 if (s) { 227 do_splash = 0; 228 addr = simple_strtoul(s, NULL, 16); 229 if (lcd_splash(addr) == 0) { 230 lcd_sync(); 231 return; 232 } 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 } 244 245 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 246 char *const argv[]) 247 { 248 lcd_clear(); 249 return 0; 250 } 251 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", ""); 252 253 static int lcd_init(void *lcdbase) 254 { 255 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 256 lcd_ctrl_init(lcdbase); 257 258 /* 259 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 260 * the 'lcdbase' argument and uses custom lcd base address 261 * by setting up gd->fb_base. Check for this condition and fixup 262 * 'lcd_base' address. 263 */ 264 if (map_to_sysmem(lcdbase) != gd->fb_base) 265 lcd_base = map_sysmem(gd->fb_base, 0); 266 267 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 268 269 lcd_get_size(&lcd_line_length); 270 lcd_is_enabled = 1; 271 lcd_clear(); 272 lcd_enable(); 273 274 /* Initialize the console */ 275 lcd_set_col(0); 276 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 277 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 278 #else 279 lcd_set_row(1); /* leave 1 blank line below logo */ 280 #endif 281 282 return 0; 283 } 284 285 /* 286 * This is called early in the system initialization to grab memory 287 * for the LCD controller. 288 * Returns new address for monitor, after reserving LCD buffer memory 289 * 290 * Note that this is running from ROM, so no write access to global data. 291 */ 292 ulong lcd_setmem(ulong addr) 293 { 294 ulong size; 295 int line_length; 296 297 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 298 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 299 300 size = lcd_get_size(&line_length); 301 302 /* Round up to nearest full page, or MMU section if defined */ 303 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 304 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 305 306 /* Allocate pages for the frame buffer. */ 307 addr -= size; 308 309 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 310 size >> 10, addr); 311 312 return addr; 313 } 314 315 static void lcd_setfgcolor(int color) 316 { 317 lcd_color_fg = color; 318 } 319 320 int lcd_getfgcolor(void) 321 { 322 return lcd_color_fg; 323 } 324 325 static void lcd_setbgcolor(int color) 326 { 327 lcd_color_bg = color; 328 } 329 330 int lcd_getbgcolor(void) 331 { 332 return lcd_color_bg; 333 } 334 335 #ifdef CONFIG_LCD_LOGO 336 __weak void lcd_logo_set_cmap(void) 337 { 338 int i; 339 ushort *cmap = configuration_get_cmap(); 340 341 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) 342 *cmap++ = bmp_logo_palette[i]; 343 } 344 345 void lcd_logo_plot(int x, int y) 346 { 347 ushort i, j; 348 uchar *bmap = &bmp_logo_bitmap[0]; 349 unsigned bpix = NBITS(panel_info.vl_bpix); 350 uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 351 ushort *fb16; 352 353 debug("Logo: width %d height %d colors %d\n", 354 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS); 355 356 if (bpix < 12) { 357 WATCHDOG_RESET(); 358 lcd_logo_set_cmap(); 359 WATCHDOG_RESET(); 360 361 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 362 memcpy(fb, bmap, BMP_LOGO_WIDTH); 363 bmap += BMP_LOGO_WIDTH; 364 fb += panel_info.vl_col; 365 } 366 } 367 else { /* true color mode */ 368 u16 col16; 369 fb16 = (ushort *)fb; 370 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 371 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 372 col16 = bmp_logo_palette[(bmap[j]-16)]; 373 fb16[j] = 374 ((col16 & 0x000F) << 1) | 375 ((col16 & 0x00F0) << 3) | 376 ((col16 & 0x0F00) << 4); 377 } 378 bmap += BMP_LOGO_WIDTH; 379 fb16 += panel_info.vl_col; 380 } 381 } 382 383 WATCHDOG_RESET(); 384 lcd_sync(); 385 } 386 #else 387 static inline void lcd_logo_plot(int x, int y) {} 388 #endif /* CONFIG_LCD_LOGO */ 389 390 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 391 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 392 #define BMP_ALIGN_CENTER 0x7FFF 393 394 static void splash_align_axis(int *axis, unsigned long panel_size, 395 unsigned long picture_size) 396 { 397 unsigned long panel_picture_delta = panel_size - picture_size; 398 unsigned long axis_alignment; 399 400 if (*axis == BMP_ALIGN_CENTER) 401 axis_alignment = panel_picture_delta / 2; 402 else if (*axis < 0) 403 axis_alignment = panel_picture_delta + *axis + 1; 404 else 405 return; 406 407 *axis = max(0, (int)axis_alignment); 408 } 409 #endif 410 411 #ifdef CONFIG_LCD_BMP_RLE8 412 #define BMP_RLE8_ESCAPE 0 413 #define BMP_RLE8_EOL 0 414 #define BMP_RLE8_EOBMP 1 415 #define BMP_RLE8_DELTA 2 416 417 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 418 int cnt) 419 { 420 while (cnt > 0) { 421 *(*fbp)++ = cmap[*bmap++]; 422 cnt--; 423 } 424 } 425 426 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 427 { 428 ushort *fb = *fbp; 429 int cnt_8copy = cnt >> 3; 430 431 cnt -= cnt_8copy << 3; 432 while (cnt_8copy > 0) { 433 *fb++ = c; 434 *fb++ = c; 435 *fb++ = c; 436 *fb++ = c; 437 *fb++ = c; 438 *fb++ = c; 439 *fb++ = c; 440 *fb++ = c; 441 cnt_8copy--; 442 } 443 while (cnt > 0) { 444 *fb++ = c; 445 cnt--; 446 } 447 *fbp = fb; 448 } 449 450 /* 451 * Do not call this function directly, must be called from lcd_display_bitmap. 452 */ 453 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap, 454 uchar *fb, int x_off, int y_off) 455 { 456 uchar *bmap; 457 ulong width, height; 458 ulong cnt, runlen; 459 int x, y; 460 int decode = 1; 461 462 width = get_unaligned_le32(&bmp->header.width); 463 height = get_unaligned_le32(&bmp->header.height); 464 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 465 466 x = 0; 467 y = height - 1; 468 469 while (decode) { 470 if (bmap[0] == BMP_RLE8_ESCAPE) { 471 switch (bmap[1]) { 472 case BMP_RLE8_EOL: 473 /* end of line */ 474 bmap += 2; 475 x = 0; 476 y--; 477 /* 16bpix, 2-byte per pixel, width should *2 */ 478 fb -= (width * 2 + lcd_line_length); 479 break; 480 case BMP_RLE8_EOBMP: 481 /* end of bitmap */ 482 decode = 0; 483 break; 484 case BMP_RLE8_DELTA: 485 /* delta run */ 486 x += bmap[2]; 487 y -= bmap[3]; 488 /* 16bpix, 2-byte per pixel, x should *2 */ 489 fb = (uchar *) (lcd_base + (y + y_off - 1) 490 * lcd_line_length + (x + x_off) * 2); 491 bmap += 4; 492 break; 493 default: 494 /* unencoded run */ 495 runlen = bmap[1]; 496 bmap += 2; 497 if (y < height) { 498 if (x < width) { 499 if (x + runlen > width) 500 cnt = width - x; 501 else 502 cnt = runlen; 503 draw_unencoded_bitmap( 504 (ushort **)&fb, 505 bmap, cmap, cnt); 506 } 507 x += runlen; 508 } 509 bmap += runlen; 510 if (runlen & 1) 511 bmap++; 512 } 513 } else { 514 /* encoded run */ 515 if (y < height) { 516 runlen = bmap[0]; 517 if (x < width) { 518 /* aggregate the same code */ 519 while (bmap[0] == 0xff && 520 bmap[2] != BMP_RLE8_ESCAPE && 521 bmap[1] == bmap[3]) { 522 runlen += bmap[2]; 523 bmap += 2; 524 } 525 if (x + runlen > width) 526 cnt = width - x; 527 else 528 cnt = runlen; 529 draw_encoded_bitmap((ushort **)&fb, 530 cmap[bmap[1]], cnt); 531 } 532 x += runlen; 533 } 534 bmap += 2; 535 } 536 } 537 } 538 #endif 539 540 __weak void fb_put_byte(uchar **fb, uchar **from) 541 { 542 *(*fb)++ = *(*from)++; 543 } 544 545 #if defined(CONFIG_BMP_16BPP) 546 __weak void fb_put_word(uchar **fb, uchar **from) 547 { 548 *(*fb)++ = *(*from)++; 549 *(*fb)++ = *(*from)++; 550 } 551 #endif /* CONFIG_BMP_16BPP */ 552 553 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors) 554 { 555 int i; 556 struct bmp_color_table_entry cte; 557 ushort *cmap = configuration_get_cmap(); 558 559 for (i = 0; i < colors; ++i) { 560 cte = bmp->color_table[i]; 561 *cmap = (((cte.red) << 8) & 0xf800) | 562 (((cte.green) << 3) & 0x07e0) | 563 (((cte.blue) >> 3) & 0x001f); 564 cmap++; 565 } 566 } 567 568 int lcd_display_bitmap(ulong bmp_image, int x, int y) 569 { 570 ushort *cmap_base = NULL; 571 ushort i, j; 572 uchar *fb; 573 struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0); 574 uchar *bmap; 575 ushort padded_width; 576 unsigned long width, height, byte_width; 577 unsigned long pwidth = panel_info.vl_col; 578 unsigned colors, bpix, bmp_bpix; 579 int hdr_size; 580 struct bmp_color_table_entry *palette; 581 582 if (!bmp || !(bmp->header.signature[0] == 'B' && 583 bmp->header.signature[1] == 'M')) { 584 printf("Error: no valid bmp image at %lx\n", bmp_image); 585 586 return 1; 587 } 588 589 palette = bmp->color_table; 590 width = get_unaligned_le32(&bmp->header.width); 591 height = get_unaligned_le32(&bmp->header.height); 592 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 593 hdr_size = get_unaligned_le16(&bmp->header.size); 594 debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix); 595 596 colors = 1 << bmp_bpix; 597 598 bpix = NBITS(panel_info.vl_bpix); 599 600 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 601 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 602 bpix, bmp_bpix); 603 604 return 1; 605 } 606 607 /* 608 * We support displaying 8bpp BMPs on 16bpp LCDs 609 * and displaying 24bpp BMPs on 32bpp LCDs 610 * */ 611 if (bpix != bmp_bpix && 612 !(bmp_bpix == 8 && bpix == 16) && 613 !(bmp_bpix == 24 && bpix == 32)) { 614 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 615 bpix, get_unaligned_le16(&bmp->header.bit_count)); 616 return 1; 617 } 618 619 debug("Display-bmp: %d x %d with %d colors, display %d\n", 620 (int)width, (int)height, (int)colors, 1 << bpix); 621 622 if (bmp_bpix == 8) 623 lcd_set_cmap(bmp, colors); 624 625 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 626 627 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 628 splash_align_axis(&x, pwidth, width); 629 splash_align_axis(&y, panel_info.vl_row, height); 630 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 631 632 if ((x + width) > pwidth) 633 width = pwidth - x; 634 if ((y + height) > panel_info.vl_row) 635 height = panel_info.vl_row - y; 636 637 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 638 fb = (uchar *)(lcd_base + 639 (y + height - 1) * lcd_line_length + x * bpix / 8); 640 641 switch (bmp_bpix) { 642 case 1: 643 case 8: { 644 cmap_base = configuration_get_cmap(); 645 #ifdef CONFIG_LCD_BMP_RLE8 646 u32 compression = get_unaligned_le32(&bmp->header.compression); 647 debug("compressed %d %d\n", compression, BMP_BI_RLE8); 648 if (compression == BMP_BI_RLE8) { 649 if (bpix != 16) { 650 /* TODO implement render code for bpix != 16 */ 651 printf("Error: only support 16 bpix"); 652 return 1; 653 } 654 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 655 break; 656 } 657 #endif 658 659 if (bpix != 16) 660 byte_width = width; 661 else 662 byte_width = width * 2; 663 664 for (i = 0; i < height; ++i) { 665 WATCHDOG_RESET(); 666 for (j = 0; j < width; j++) { 667 if (bpix != 16) { 668 fb_put_byte(&fb, &bmap); 669 } else { 670 struct bmp_color_table_entry *entry; 671 uint val; 672 673 if (cmap_base) { 674 val = cmap_base[*bmap]; 675 } else { 676 entry = &palette[*bmap]; 677 val = entry->blue >> 3 | 678 entry->green >> 2 << 5 | 679 entry->red >> 3 << 11; 680 } 681 *(uint16_t *)fb = val; 682 bmap++; 683 fb += sizeof(uint16_t) / sizeof(*fb); 684 } 685 } 686 bmap += (padded_width - width); 687 fb -= byte_width + lcd_line_length; 688 } 689 break; 690 } 691 #if defined(CONFIG_BMP_16BPP) 692 case 16: 693 for (i = 0; i < height; ++i) { 694 WATCHDOG_RESET(); 695 for (j = 0; j < width; j++) 696 fb_put_word(&fb, &bmap); 697 698 bmap += (padded_width - width) * 2; 699 fb -= width * 2 + lcd_line_length; 700 } 701 break; 702 #endif /* CONFIG_BMP_16BPP */ 703 #if defined(CONFIG_BMP_24BPP) 704 case 24: 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++) = 0; 711 } 712 fb -= lcd_line_length + width * (bpix / 8); 713 } 714 break; 715 #endif /* CONFIG_BMP_24BPP */ 716 #if defined(CONFIG_BMP_32BPP) 717 case 32: 718 for (i = 0; i < height; ++i) { 719 for (j = 0; j < width; j++) { 720 *(fb++) = *(bmap++); 721 *(fb++) = *(bmap++); 722 *(fb++) = *(bmap++); 723 *(fb++) = *(bmap++); 724 } 725 fb -= lcd_line_length + width * (bpix / 8); 726 } 727 break; 728 #endif /* CONFIG_BMP_32BPP */ 729 default: 730 break; 731 }; 732 733 lcd_sync(); 734 return 0; 735 } 736 #endif 737 738 static void lcd_logo(void) 739 { 740 lcd_logo_plot(0, 0); 741 742 #ifdef CONFIG_LCD_INFO 743 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 744 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 745 lcd_show_board_info(); 746 #endif /* CONFIG_LCD_INFO */ 747 } 748 749 #ifdef CONFIG_SPLASHIMAGE_GUARD 750 static int on_splashimage(const char *name, const char *value, enum env_op op, 751 int flags) 752 { 753 ulong addr; 754 int aligned; 755 756 if (op == env_op_delete) 757 return 0; 758 759 addr = simple_strtoul(value, NULL, 16); 760 /* See README.displaying-bmps */ 761 aligned = (addr % 4 == 2); 762 if (!aligned) { 763 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 764 return -1; 765 } 766 767 return 0; 768 } 769 770 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 771 #endif 772 773 int lcd_get_pixel_width(void) 774 { 775 return panel_info.vl_col; 776 } 777 778 int lcd_get_pixel_height(void) 779 { 780 return panel_info.vl_row; 781 } 782
