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 #include <fdt_support.h> 34 35 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 36 defined(CONFIG_CPU_MONAHANS) 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 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \ 77 (LCD_BPP != LCD_COLOR32) 78 # error Unsupported LCD BPP. 79 #endif 80 81 DECLARE_GLOBAL_DATA_PTR; 82 83 static int lcd_init(void *lcdbase); 84 85 static void *lcd_logo(void); 86 87 static void lcd_setfgcolor(int color); 88 static void lcd_setbgcolor(int color); 89 90 static int lcd_color_fg; 91 static int lcd_color_bg; 92 int lcd_line_length; 93 94 char lcd_is_enabled = 0; 95 96 static void *lcd_base; /* Start of framebuffer memory */ 97 98 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 99 100 /************************************************************************/ 101 102 /* Flush LCD activity to the caches */ 103 void lcd_sync(void) 104 { 105 /* 106 * flush_dcache_range() is declared in common.h but it seems that some 107 * architectures do not actually implement it. Is there a way to find 108 * out whether it exists? For now, ARM is safe. 109 */ 110 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 111 int line_length; 112 113 if (lcd_flush_dcache) 114 flush_dcache_range((u32)lcd_base, 115 (u32)(lcd_base + lcd_get_size(&line_length))); 116 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 117 static ulong last_sync; 118 119 if (get_timer(last_sync) > 10) { 120 sandbox_sdl_sync(lcd_base); 121 last_sync = get_timer(0); 122 } 123 #endif 124 } 125 126 void lcd_set_flush_dcache(int flush) 127 { 128 lcd_flush_dcache = (flush != 0); 129 } 130 131 /*----------------------------------------------------------------------*/ 132 133 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 134 { 135 lcd_putc(c); 136 } 137 138 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 139 { 140 lcd_puts(s); 141 } 142 143 /************************************************************************/ 144 /** Small utility to check that you got the colours right */ 145 /************************************************************************/ 146 #ifdef LCD_TEST_PATTERN 147 148 #define N_BLK_VERT 2 149 #define N_BLK_HOR 3 150 151 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 152 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 153 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 154 }; 155 156 static void test_pattern(void) 157 { 158 ushort v_max = panel_info.vl_row; 159 ushort h_max = panel_info.vl_col; 160 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 161 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 162 ushort v, h; 163 uchar *pix = (uchar *)lcd_base; 164 165 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 166 h_max, v_max, h_step, v_step); 167 168 /* WARNING: Code silently assumes 8bit/pixel */ 169 for (v = 0; v < v_max; ++v) { 170 uchar iy = v / v_step; 171 for (h = 0; h < h_max; ++h) { 172 uchar ix = N_BLK_HOR * iy + h / h_step; 173 *pix++ = test_colors[ix]; 174 } 175 } 176 } 177 #endif /* LCD_TEST_PATTERN */ 178 179 180 /************************************************************************/ 181 /* ** GENERIC Initialization Routines */ 182 /************************************************************************/ 183 /* 184 * With most lcd drivers the line length is set up 185 * by calculating it from panel_info parameters. Some 186 * drivers need to calculate the line length differently, 187 * so make the function weak to allow overriding it. 188 */ 189 __weak int lcd_get_size(int *line_length) 190 { 191 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 192 return *line_length * panel_info.vl_row; 193 } 194 195 int drv_lcd_init(void) 196 { 197 struct stdio_dev lcddev; 198 int rc; 199 200 lcd_base = map_sysmem(gd->fb_base, 0); 201 202 lcd_init(lcd_base); /* LCD initialization */ 203 204 /* Device initialization */ 205 memset(&lcddev, 0, sizeof(lcddev)); 206 207 strcpy(lcddev.name, "lcd"); 208 lcddev.ext = 0; /* No extensions */ 209 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 210 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 211 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 212 213 rc = stdio_register(&lcddev); 214 215 return (rc == 0) ? 1 : rc; 216 } 217 218 /*----------------------------------------------------------------------*/ 219 void lcd_clear(void) 220 { 221 short console_rows, console_cols; 222 int bg_color; 223 #if LCD_BPP == LCD_COLOR8 224 /* Setting the palette */ 225 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 226 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 227 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 228 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 229 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 230 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 231 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 232 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 233 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 234 #endif 235 236 #ifndef CONFIG_SYS_WHITE_ON_BLACK 237 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 238 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 239 bg_color = CONSOLE_COLOR_WHITE; 240 #else 241 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 242 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 243 bg_color = CONSOLE_COLOR_BLACK; 244 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 245 246 #ifdef LCD_TEST_PATTERN 247 test_pattern(); 248 #else 249 /* set framebuffer to background color */ 250 #if (LCD_BPP != LCD_COLOR32) 251 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row); 252 #else 253 u32 *ppix = lcd_base; 254 u32 i; 255 for (i = 0; 256 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 257 i++) { 258 *ppix++ = bg_color; 259 } 260 #endif 261 #endif 262 /* Paint the logo and retrieve LCD base address */ 263 debug("[LCD] Drawing the logo...\n"); 264 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 265 console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT); 266 console_rows /= VIDEO_FONT_HEIGHT; 267 #else 268 console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT; 269 #endif 270 console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH; 271 lcd_init_console(lcd_base, console_rows, console_cols); 272 lcd_init_console(lcd_logo(), console_rows, console_cols); 273 lcd_sync(); 274 } 275 276 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 277 char *const argv[]) 278 { 279 lcd_clear(); 280 return 0; 281 } 282 283 U_BOOT_CMD( 284 cls, 1, 1, do_lcd_clear, 285 "clear screen", 286 "" 287 ); 288 289 /*----------------------------------------------------------------------*/ 290 291 static int lcd_init(void *lcdbase) 292 { 293 /* Initialize the lcd controller */ 294 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 295 296 lcd_ctrl_init(lcdbase); 297 298 /* 299 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 300 * the 'lcdbase' argument and uses custom lcd base address 301 * by setting up gd->fb_base. Check for this condition and fixup 302 * 'lcd_base' address. 303 */ 304 if (map_to_sysmem(lcdbase) != gd->fb_base) 305 lcd_base = map_sysmem(gd->fb_base, 0); 306 307 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 308 309 lcd_get_size(&lcd_line_length); 310 lcd_is_enabled = 1; 311 lcd_clear(); 312 lcd_enable(); 313 314 /* Initialize the console */ 315 lcd_set_col(0); 316 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 317 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 318 #else 319 lcd_set_row(1); /* leave 1 blank line below logo */ 320 #endif 321 322 return 0; 323 } 324 325 326 /************************************************************************/ 327 /* ** ROM capable initialization part - needed to reserve FB memory */ 328 /************************************************************************/ 329 /* 330 * This is called early in the system initialization to grab memory 331 * for the LCD controller. 332 * Returns new address for monitor, after reserving LCD buffer memory 333 * 334 * Note that this is running from ROM, so no write access to global data. 335 */ 336 ulong lcd_setmem(ulong addr) 337 { 338 ulong size; 339 int line_length; 340 341 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 342 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 343 344 size = lcd_get_size(&line_length); 345 346 /* Round up to nearest full page, or MMU section if defined */ 347 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 348 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 349 350 /* Allocate pages for the frame buffer. */ 351 addr -= size; 352 353 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 354 size >> 10, addr); 355 356 return addr; 357 } 358 359 /*----------------------------------------------------------------------*/ 360 361 static void lcd_setfgcolor(int color) 362 { 363 lcd_color_fg = color; 364 } 365 366 int lcd_getfgcolor(void) 367 { 368 return lcd_color_fg; 369 } 370 371 /*----------------------------------------------------------------------*/ 372 373 static void lcd_setbgcolor(int color) 374 { 375 lcd_color_bg = color; 376 } 377 378 int lcd_getbgcolor(void) 379 { 380 return lcd_color_bg; 381 } 382 383 /************************************************************************/ 384 /* ** Chipset depending Bitmap / Logo stuff... */ 385 /************************************************************************/ 386 387 #ifdef CONFIG_LCD_LOGO 388 __weak void lcd_logo_set_cmap(void) 389 { 390 int i; 391 ushort *cmap = configuration_get_cmap(); 392 393 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) 394 *cmap++ = bmp_logo_palette[i]; 395 } 396 397 void bitmap_plot(int x, int y) 398 { 399 ushort i, j; 400 uchar *bmap; 401 uchar *fb; 402 ushort *fb16; 403 unsigned bpix = NBITS(panel_info.vl_bpix); 404 405 debug("Logo: width %d height %d colors %d\n", 406 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS); 407 408 bmap = &bmp_logo_bitmap[0]; 409 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 410 411 if (bpix < 12) { 412 WATCHDOG_RESET(); 413 lcd_logo_set_cmap(); 414 WATCHDOG_RESET(); 415 416 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 417 memcpy(fb, bmap, BMP_LOGO_WIDTH); 418 bmap += BMP_LOGO_WIDTH; 419 fb += panel_info.vl_col; 420 } 421 } 422 else { /* true color mode */ 423 u16 col16; 424 fb16 = (ushort *)fb; 425 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 426 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 427 col16 = bmp_logo_palette[(bmap[j]-16)]; 428 fb16[j] = 429 ((col16 & 0x000F) << 1) | 430 ((col16 & 0x00F0) << 3) | 431 ((col16 & 0x0F00) << 4); 432 } 433 bmap += BMP_LOGO_WIDTH; 434 fb16 += panel_info.vl_col; 435 } 436 } 437 438 WATCHDOG_RESET(); 439 lcd_sync(); 440 } 441 #else 442 static inline void bitmap_plot(int x, int y) {} 443 #endif /* CONFIG_LCD_LOGO */ 444 445 /*----------------------------------------------------------------------*/ 446 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 447 /* 448 * Display the BMP file located at address bmp_image. 449 * Only uncompressed. 450 */ 451 452 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 453 #define BMP_ALIGN_CENTER 0x7FFF 454 455 static void splash_align_axis(int *axis, unsigned long panel_size, 456 unsigned long picture_size) 457 { 458 unsigned long panel_picture_delta = panel_size - picture_size; 459 unsigned long axis_alignment; 460 461 if (*axis == BMP_ALIGN_CENTER) 462 axis_alignment = panel_picture_delta / 2; 463 else if (*axis < 0) 464 axis_alignment = panel_picture_delta + *axis + 1; 465 else 466 return; 467 468 *axis = max(0, (int)axis_alignment); 469 } 470 #endif 471 472 473 #ifdef CONFIG_LCD_BMP_RLE8 474 475 #define BMP_RLE8_ESCAPE 0 476 #define BMP_RLE8_EOL 0 477 #define BMP_RLE8_EOBMP 1 478 #define BMP_RLE8_DELTA 2 479 480 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 481 int cnt) 482 { 483 while (cnt > 0) { 484 *(*fbp)++ = cmap[*bmap++]; 485 cnt--; 486 } 487 } 488 489 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 490 { 491 ushort *fb = *fbp; 492 int cnt_8copy = cnt >> 3; 493 494 cnt -= cnt_8copy << 3; 495 while (cnt_8copy > 0) { 496 *fb++ = c; 497 *fb++ = c; 498 *fb++ = c; 499 *fb++ = c; 500 *fb++ = c; 501 *fb++ = c; 502 *fb++ = c; 503 *fb++ = c; 504 cnt_8copy--; 505 } 506 while (cnt > 0) { 507 *fb++ = c; 508 cnt--; 509 } 510 *fbp = fb; 511 } 512 513 /* 514 * Do not call this function directly, must be called from lcd_display_bitmap. 515 */ 516 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 517 int x_off, int y_off) 518 { 519 uchar *bmap; 520 ulong width, height; 521 ulong cnt, runlen; 522 int x, y; 523 int decode = 1; 524 525 width = get_unaligned_le32(&bmp->header.width); 526 height = get_unaligned_le32(&bmp->header.height); 527 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 528 529 x = 0; 530 y = height - 1; 531 532 while (decode) { 533 if (bmap[0] == BMP_RLE8_ESCAPE) { 534 switch (bmap[1]) { 535 case BMP_RLE8_EOL: 536 /* end of line */ 537 bmap += 2; 538 x = 0; 539 y--; 540 /* 16bpix, 2-byte per pixel, width should *2 */ 541 fb -= (width * 2 + lcd_line_length); 542 break; 543 case BMP_RLE8_EOBMP: 544 /* end of bitmap */ 545 decode = 0; 546 break; 547 case BMP_RLE8_DELTA: 548 /* delta run */ 549 x += bmap[2]; 550 y -= bmap[3]; 551 /* 16bpix, 2-byte per pixel, x should *2 */ 552 fb = (uchar *) (lcd_base + (y + y_off - 1) 553 * lcd_line_length + (x + x_off) * 2); 554 bmap += 4; 555 break; 556 default: 557 /* unencoded run */ 558 runlen = bmap[1]; 559 bmap += 2; 560 if (y < height) { 561 if (x < width) { 562 if (x + runlen > width) 563 cnt = width - x; 564 else 565 cnt = runlen; 566 draw_unencoded_bitmap( 567 (ushort **)&fb, 568 bmap, cmap, cnt); 569 } 570 x += runlen; 571 } 572 bmap += runlen; 573 if (runlen & 1) 574 bmap++; 575 } 576 } else { 577 /* encoded run */ 578 if (y < height) { 579 runlen = bmap[0]; 580 if (x < width) { 581 /* aggregate the same code */ 582 while (bmap[0] == 0xff && 583 bmap[2] != BMP_RLE8_ESCAPE && 584 bmap[1] == bmap[3]) { 585 runlen += bmap[2]; 586 bmap += 2; 587 } 588 if (x + runlen > width) 589 cnt = width - x; 590 else 591 cnt = runlen; 592 draw_encoded_bitmap((ushort **)&fb, 593 cmap[bmap[1]], cnt); 594 } 595 x += runlen; 596 } 597 bmap += 2; 598 } 599 } 600 } 601 #endif 602 603 __weak void fb_put_byte(uchar **fb, uchar **from) 604 { 605 *(*fb)++ = *(*from)++; 606 } 607 608 #if defined(CONFIG_BMP_16BPP) 609 __weak void fb_put_word(uchar **fb, uchar **from) 610 { 611 *(*fb)++ = *(*from)++; 612 *(*fb)++ = *(*from)++; 613 } 614 #endif /* CONFIG_BMP_16BPP */ 615 616 __weak void lcd_set_cmap(bmp_image_t *bmp, unsigned colors) 617 { 618 int i; 619 bmp_color_table_entry_t cte; 620 ushort *cmap = configuration_get_cmap(); 621 622 for (i = 0; i < colors; ++i) { 623 cte = bmp->color_table[i]; 624 *cmap = (((cte.red) << 8) & 0xf800) | 625 (((cte.green) << 3) & 0x07e0) | 626 (((cte.blue) >> 3) & 0x001f); 627 #if defined(CONFIG_MPC823) 628 cmap--; 629 #else 630 cmap++; 631 #endif 632 } 633 } 634 635 int lcd_display_bitmap(ulong bmp_image, int x, int y) 636 { 637 ushort *cmap_base = NULL; 638 ushort i, j; 639 uchar *fb; 640 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 641 uchar *bmap; 642 ushort padded_width; 643 unsigned long width, height, byte_width; 644 unsigned long pwidth = panel_info.vl_col; 645 unsigned colors, bpix, bmp_bpix; 646 647 if (!bmp || !(bmp->header.signature[0] == 'B' && 648 bmp->header.signature[1] == 'M')) { 649 printf("Error: no valid bmp image at %lx\n", bmp_image); 650 651 return 1; 652 } 653 654 width = get_unaligned_le32(&bmp->header.width); 655 height = get_unaligned_le32(&bmp->header.height); 656 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 657 658 colors = 1 << bmp_bpix; 659 660 bpix = NBITS(panel_info.vl_bpix); 661 662 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 663 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 664 bpix, bmp_bpix); 665 666 return 1; 667 } 668 669 /* 670 * We support displaying 8bpp BMPs on 16bpp LCDs 671 * and displaying 24bpp BMPs on 32bpp LCDs 672 * */ 673 if (bpix != bmp_bpix && 674 !(bmp_bpix == 8 && bpix == 16) && 675 !(bmp_bpix == 24 && bpix == 32)) { 676 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 677 bpix, get_unaligned_le16(&bmp->header.bit_count)); 678 return 1; 679 } 680 681 debug("Display-bmp: %d x %d with %d colors\n", 682 (int)width, (int)height, (int)colors); 683 684 if (bmp_bpix == 8) 685 lcd_set_cmap(bmp, colors); 686 687 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 688 689 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 690 splash_align_axis(&x, pwidth, width); 691 splash_align_axis(&y, panel_info.vl_row, height); 692 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 693 694 if ((x + width) > pwidth) 695 width = pwidth - x; 696 if ((y + height) > panel_info.vl_row) 697 height = panel_info.vl_row - y; 698 699 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 700 fb = (uchar *)(lcd_base + 701 (y + height - 1) * lcd_line_length + x * bpix / 8); 702 703 switch (bmp_bpix) { 704 case 1: /* pass through */ 705 case 8: { 706 cmap_base = configuration_get_cmap(); 707 #ifdef CONFIG_LCD_BMP_RLE8 708 u32 compression = get_unaligned_le32(&bmp->header.compression); 709 if (compression == BMP_BI_RLE8) { 710 if (bpix != 16) { 711 /* TODO implement render code for bpix != 16 */ 712 printf("Error: only support 16 bpix"); 713 return 1; 714 } 715 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 716 break; 717 } 718 #endif 719 720 if (bpix != 16) 721 byte_width = width; 722 else 723 byte_width = width * 2; 724 725 for (i = 0; i < height; ++i) { 726 WATCHDOG_RESET(); 727 for (j = 0; j < width; j++) { 728 if (bpix != 16) { 729 fb_put_byte(&fb, &bmap); 730 } else { 731 *(uint16_t *)fb = cmap_base[*(bmap++)]; 732 fb += sizeof(uint16_t) / sizeof(*fb); 733 } 734 } 735 bmap += (padded_width - width); 736 fb -= byte_width + lcd_line_length; 737 } 738 break; 739 } 740 #if defined(CONFIG_BMP_16BPP) 741 case 16: 742 for (i = 0; i < height; ++i) { 743 WATCHDOG_RESET(); 744 for (j = 0; j < width; j++) 745 fb_put_word(&fb, &bmap); 746 747 bmap += (padded_width - width) * 2; 748 fb -= width * 2 + lcd_line_length; 749 } 750 break; 751 #endif /* CONFIG_BMP_16BPP */ 752 #if defined(CONFIG_BMP_24BMP) 753 case 24: 754 for (i = 0; i < height; ++i) { 755 for (j = 0; j < width; j++) { 756 *(fb++) = *(bmap++); 757 *(fb++) = *(bmap++); 758 *(fb++) = *(bmap++); 759 *(fb++) = 0; 760 } 761 fb -= lcd_line_length + width * (bpix / 8); 762 } 763 break; 764 #endif /* CONFIG_BMP_24BMP */ 765 #if defined(CONFIG_BMP_32BPP) 766 case 32: 767 for (i = 0; i < height; ++i) { 768 for (j = 0; j < width; j++) { 769 *(fb++) = *(bmap++); 770 *(fb++) = *(bmap++); 771 *(fb++) = *(bmap++); 772 *(fb++) = *(bmap++); 773 } 774 fb -= lcd_line_length + width * (bpix / 8); 775 } 776 break; 777 #endif /* CONFIG_BMP_32BPP */ 778 default: 779 break; 780 }; 781 782 lcd_sync(); 783 return 0; 784 } 785 #endif 786 787 static void *lcd_logo(void) 788 { 789 #ifdef CONFIG_SPLASH_SCREEN 790 char *s; 791 ulong addr; 792 static int do_splash = 1; 793 794 if (do_splash && (s = getenv("splashimage")) != NULL) { 795 int x = 0, y = 0; 796 do_splash = 0; 797 798 if (splash_screen_prepare()) 799 return (void *)lcd_base; 800 801 addr = simple_strtoul (s, NULL, 16); 802 803 splash_get_pos(&x, &y); 804 805 if (bmp_display(addr, x, y) == 0) 806 return (void *)lcd_base; 807 } 808 #endif /* CONFIG_SPLASH_SCREEN */ 809 810 bitmap_plot(0, 0); 811 812 #ifdef CONFIG_LCD_INFO 813 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 814 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 815 lcd_show_board_info(); 816 #endif /* CONFIG_LCD_INFO */ 817 818 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 819 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 820 #else 821 return (void *)lcd_base; 822 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 823 } 824 825 #ifdef CONFIG_SPLASHIMAGE_GUARD 826 static int on_splashimage(const char *name, const char *value, enum env_op op, 827 int flags) 828 { 829 ulong addr; 830 int aligned; 831 832 if (op == env_op_delete) 833 return 0; 834 835 addr = simple_strtoul(value, NULL, 16); 836 /* See README.displaying-bmps */ 837 aligned = (addr % 4 == 2); 838 if (!aligned) { 839 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 840 return -1; 841 } 842 843 return 0; 844 } 845 846 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 847 #endif 848 849 int lcd_get_pixel_width(void) 850 { 851 return panel_info.vl_col; 852 } 853 854 int lcd_get_pixel_height(void) 855 { 856 return panel_info.vl_row; 857 } 858 859 #if defined(CONFIG_LCD_DT_SIMPLEFB) 860 static int lcd_dt_simplefb_configure_node(void *blob, int off) 861 { 862 #if LCD_BPP == LCD_COLOR16 863 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 864 panel_info.vl_col, panel_info.vl_row, 865 panel_info.vl_col * 2, "r5g6b5"); 866 #else 867 return -1; 868 #endif 869 } 870 871 int lcd_dt_simplefb_add_node(void *blob) 872 { 873 static const char compat[] = "simple-framebuffer"; 874 static const char disabled[] = "disabled"; 875 int off, ret; 876 877 off = fdt_add_subnode(blob, 0, "framebuffer"); 878 if (off < 0) 879 return -1; 880 881 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 882 if (ret < 0) 883 return -1; 884 885 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 886 if (ret < 0) 887 return -1; 888 889 return lcd_dt_simplefb_configure_node(blob, off); 890 } 891 892 int lcd_dt_simplefb_enable_existing_node(void *blob) 893 { 894 int off; 895 896 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 897 if (off < 0) 898 return -1; 899 900 return lcd_dt_simplefb_configure_node(blob, off); 901 } 902 #endif 903