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 } 391 392 void bitmap_plot(int x, int y) 393 { 394 ushort *cmap = (ushort *)bmp_logo_palette; 395 ushort i, j; 396 uchar *bmap; 397 uchar *fb; 398 ushort *fb16; 399 #if defined(CONFIG_MPC823) 400 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 401 cpm8xx_t *cp = &(immr->im_cpm); 402 #endif 403 unsigned bpix = NBITS(panel_info.vl_bpix); 404 405 debug("Logo: width %d height %d colors %d cmap %d\n", 406 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 407 ARRAY_SIZE(bmp_logo_palette)); 408 409 bmap = &bmp_logo_bitmap[0]; 410 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 411 412 if (bpix < 12) { 413 /* Leave room for default color map 414 * default case: generic system with no cmap (most likely 16bpp) 415 * cmap was set to the source palette, so no change is done. 416 * This avoids even more ifdefs in the next stanza 417 */ 418 #if defined(CONFIG_MPC823) 419 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 420 #else 421 cmap = configuration_get_cmap(); 422 #endif 423 424 WATCHDOG_RESET(); 425 426 /* Set color map */ 427 #ifdef CONFIG_ATMEL_LCD 428 lcd_logo_set_cmap(); 429 #else 430 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 431 ushort colreg = bmp_logo_palette[i]; 432 *cmap++ = colreg; 433 } 434 #endif 435 436 WATCHDOG_RESET(); 437 438 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 439 memcpy(fb, bmap, BMP_LOGO_WIDTH); 440 bmap += BMP_LOGO_WIDTH; 441 fb += panel_info.vl_col; 442 } 443 } 444 else { /* true color mode */ 445 u16 col16; 446 fb16 = (ushort *)fb; 447 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 448 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 449 col16 = bmp_logo_palette[(bmap[j]-16)]; 450 fb16[j] = 451 ((col16 & 0x000F) << 1) | 452 ((col16 & 0x00F0) << 3) | 453 ((col16 & 0x0F00) << 4); 454 } 455 bmap += BMP_LOGO_WIDTH; 456 fb16 += panel_info.vl_col; 457 } 458 } 459 460 WATCHDOG_RESET(); 461 lcd_sync(); 462 } 463 #else 464 static inline void bitmap_plot(int x, int y) {} 465 #endif /* CONFIG_LCD_LOGO */ 466 467 /*----------------------------------------------------------------------*/ 468 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 469 /* 470 * Display the BMP file located at address bmp_image. 471 * Only uncompressed. 472 */ 473 474 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 475 #define BMP_ALIGN_CENTER 0x7FFF 476 477 static void splash_align_axis(int *axis, unsigned long panel_size, 478 unsigned long picture_size) 479 { 480 unsigned long panel_picture_delta = panel_size - picture_size; 481 unsigned long axis_alignment; 482 483 if (*axis == BMP_ALIGN_CENTER) 484 axis_alignment = panel_picture_delta / 2; 485 else if (*axis < 0) 486 axis_alignment = panel_picture_delta + *axis + 1; 487 else 488 return; 489 490 *axis = max(0, (int)axis_alignment); 491 } 492 #endif 493 494 495 #ifdef CONFIG_LCD_BMP_RLE8 496 497 #define BMP_RLE8_ESCAPE 0 498 #define BMP_RLE8_EOL 0 499 #define BMP_RLE8_EOBMP 1 500 #define BMP_RLE8_DELTA 2 501 502 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 503 int cnt) 504 { 505 while (cnt > 0) { 506 *(*fbp)++ = cmap[*bmap++]; 507 cnt--; 508 } 509 } 510 511 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 512 { 513 ushort *fb = *fbp; 514 int cnt_8copy = cnt >> 3; 515 516 cnt -= cnt_8copy << 3; 517 while (cnt_8copy > 0) { 518 *fb++ = c; 519 *fb++ = c; 520 *fb++ = c; 521 *fb++ = c; 522 *fb++ = c; 523 *fb++ = c; 524 *fb++ = c; 525 *fb++ = c; 526 cnt_8copy--; 527 } 528 while (cnt > 0) { 529 *fb++ = c; 530 cnt--; 531 } 532 *fbp = fb; 533 } 534 535 /* 536 * Do not call this function directly, must be called from lcd_display_bitmap. 537 */ 538 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 539 int x_off, int y_off) 540 { 541 uchar *bmap; 542 ulong width, height; 543 ulong cnt, runlen; 544 int x, y; 545 int decode = 1; 546 547 width = get_unaligned_le32(&bmp->header.width); 548 height = get_unaligned_le32(&bmp->header.height); 549 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 550 551 x = 0; 552 y = height - 1; 553 554 while (decode) { 555 if (bmap[0] == BMP_RLE8_ESCAPE) { 556 switch (bmap[1]) { 557 case BMP_RLE8_EOL: 558 /* end of line */ 559 bmap += 2; 560 x = 0; 561 y--; 562 /* 16bpix, 2-byte per pixel, width should *2 */ 563 fb -= (width * 2 + lcd_line_length); 564 break; 565 case BMP_RLE8_EOBMP: 566 /* end of bitmap */ 567 decode = 0; 568 break; 569 case BMP_RLE8_DELTA: 570 /* delta run */ 571 x += bmap[2]; 572 y -= bmap[3]; 573 /* 16bpix, 2-byte per pixel, x should *2 */ 574 fb = (uchar *) (lcd_base + (y + y_off - 1) 575 * lcd_line_length + (x + x_off) * 2); 576 bmap += 4; 577 break; 578 default: 579 /* unencoded run */ 580 runlen = bmap[1]; 581 bmap += 2; 582 if (y < height) { 583 if (x < width) { 584 if (x + runlen > width) 585 cnt = width - x; 586 else 587 cnt = runlen; 588 draw_unencoded_bitmap( 589 (ushort **)&fb, 590 bmap, cmap, cnt); 591 } 592 x += runlen; 593 } 594 bmap += runlen; 595 if (runlen & 1) 596 bmap++; 597 } 598 } else { 599 /* encoded run */ 600 if (y < height) { 601 runlen = bmap[0]; 602 if (x < width) { 603 /* aggregate the same code */ 604 while (bmap[0] == 0xff && 605 bmap[2] != BMP_RLE8_ESCAPE && 606 bmap[1] == bmap[3]) { 607 runlen += bmap[2]; 608 bmap += 2; 609 } 610 if (x + runlen > width) 611 cnt = width - x; 612 else 613 cnt = runlen; 614 draw_encoded_bitmap((ushort **)&fb, 615 cmap[bmap[1]], cnt); 616 } 617 x += runlen; 618 } 619 bmap += 2; 620 } 621 } 622 } 623 #endif 624 625 __weak void fb_put_byte(uchar **fb, uchar **from) 626 { 627 *(*fb)++ = *(*from)++; 628 } 629 630 #if defined(CONFIG_BMP_16BPP) 631 __weak void fb_put_word(uchar **fb, uchar **from) 632 { 633 *(*fb)++ = *(*from)++; 634 *(*fb)++ = *(*from)++; 635 } 636 #endif /* CONFIG_BMP_16BPP */ 637 638 int lcd_display_bitmap(ulong bmp_image, int x, int y) 639 { 640 ushort *cmap = NULL; 641 ushort *cmap_base = NULL; 642 ushort i, j; 643 uchar *fb; 644 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 645 uchar *bmap; 646 ushort padded_width; 647 unsigned long width, height, byte_width; 648 unsigned long pwidth = panel_info.vl_col; 649 unsigned colors, bpix, bmp_bpix; 650 651 if (!bmp || !(bmp->header.signature[0] == 'B' && 652 bmp->header.signature[1] == 'M')) { 653 printf("Error: no valid bmp image at %lx\n", bmp_image); 654 655 return 1; 656 } 657 658 width = get_unaligned_le32(&bmp->header.width); 659 height = get_unaligned_le32(&bmp->header.height); 660 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 661 662 colors = 1 << bmp_bpix; 663 664 bpix = NBITS(panel_info.vl_bpix); 665 666 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 667 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 668 bpix, bmp_bpix); 669 670 return 1; 671 } 672 673 /* 674 * We support displaying 8bpp BMPs on 16bpp LCDs 675 * and displaying 24bpp BMPs on 32bpp LCDs 676 * */ 677 if (bpix != bmp_bpix && 678 !(bmp_bpix == 8 && bpix == 16) && 679 !(bmp_bpix == 24 && bpix == 32)) { 680 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 681 bpix, get_unaligned_le16(&bmp->header.bit_count)); 682 return 1; 683 } 684 685 debug("Display-bmp: %d x %d with %d colors\n", 686 (int)width, (int)height, (int)colors); 687 688 if (bmp_bpix == 8) { 689 cmap = configuration_get_cmap(); 690 cmap_base = cmap; 691 692 /* Set color map */ 693 for (i = 0; i < colors; ++i) { 694 bmp_color_table_entry_t cte = bmp->color_table[i]; 695 #if !defined(CONFIG_ATMEL_LCD) 696 ushort colreg = 697 ( ((cte.red) << 8) & 0xf800) | 698 ( ((cte.green) << 3) & 0x07e0) | 699 ( ((cte.blue) >> 3) & 0x001f) ; 700 *cmap = colreg; 701 #if defined(CONFIG_MPC823) 702 cmap--; 703 #else 704 cmap++; 705 #endif 706 #else /* CONFIG_ATMEL_LCD */ 707 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 708 #endif 709 } 710 } 711 712 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 713 714 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 715 splash_align_axis(&x, pwidth, width); 716 splash_align_axis(&y, panel_info.vl_row, height); 717 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 718 719 if ((x + width) > pwidth) 720 width = pwidth - x; 721 if ((y + height) > panel_info.vl_row) 722 height = panel_info.vl_row - y; 723 724 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 725 fb = (uchar *)(lcd_base + 726 (y + height - 1) * lcd_line_length + x * bpix / 8); 727 728 switch (bmp_bpix) { 729 case 1: /* pass through */ 730 case 8: { 731 #ifdef CONFIG_LCD_BMP_RLE8 732 u32 compression = get_unaligned_le32(&bmp->header.compression); 733 if (compression == BMP_BI_RLE8) { 734 if (bpix != 16) { 735 /* TODO implement render code for bpix != 16 */ 736 printf("Error: only support 16 bpix"); 737 return 1; 738 } 739 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 740 break; 741 } 742 #endif 743 744 if (bpix != 16) 745 byte_width = width; 746 else 747 byte_width = width * 2; 748 749 for (i = 0; i < height; ++i) { 750 WATCHDOG_RESET(); 751 for (j = 0; j < width; j++) { 752 if (bpix != 16) { 753 fb_put_byte(&fb, &bmap); 754 } else { 755 *(uint16_t *)fb = cmap_base[*(bmap++)]; 756 fb += sizeof(uint16_t) / sizeof(*fb); 757 } 758 } 759 bmap += (padded_width - width); 760 fb -= byte_width + lcd_line_length; 761 } 762 break; 763 } 764 #if defined(CONFIG_BMP_16BPP) 765 case 16: 766 for (i = 0; i < height; ++i) { 767 WATCHDOG_RESET(); 768 for (j = 0; j < width; j++) 769 fb_put_word(&fb, &bmap); 770 771 bmap += (padded_width - width) * 2; 772 fb -= width * 2 + lcd_line_length; 773 } 774 break; 775 #endif /* CONFIG_BMP_16BPP */ 776 #if defined(CONFIG_BMP_24BMP) 777 case 24: 778 for (i = 0; i < height; ++i) { 779 for (j = 0; j < width; j++) { 780 *(fb++) = *(bmap++); 781 *(fb++) = *(bmap++); 782 *(fb++) = *(bmap++); 783 *(fb++) = 0; 784 } 785 fb -= lcd_line_length + width * (bpix / 8); 786 } 787 break; 788 #endif /* CONFIG_BMP_24BMP */ 789 #if defined(CONFIG_BMP_32BPP) 790 case 32: 791 for (i = 0; i < height; ++i) { 792 for (j = 0; j < width; j++) { 793 *(fb++) = *(bmap++); 794 *(fb++) = *(bmap++); 795 *(fb++) = *(bmap++); 796 *(fb++) = *(bmap++); 797 } 798 fb -= lcd_line_length + width * (bpix / 8); 799 } 800 break; 801 #endif /* CONFIG_BMP_32BPP */ 802 default: 803 break; 804 }; 805 806 lcd_sync(); 807 return 0; 808 } 809 #endif 810 811 static void *lcd_logo(void) 812 { 813 #ifdef CONFIG_SPLASH_SCREEN 814 char *s; 815 ulong addr; 816 static int do_splash = 1; 817 818 if (do_splash && (s = getenv("splashimage")) != NULL) { 819 int x = 0, y = 0; 820 do_splash = 0; 821 822 if (splash_screen_prepare()) 823 return (void *)lcd_base; 824 825 addr = simple_strtoul (s, NULL, 16); 826 827 splash_get_pos(&x, &y); 828 829 if (bmp_display(addr, x, y) == 0) 830 return (void *)lcd_base; 831 } 832 #endif /* CONFIG_SPLASH_SCREEN */ 833 834 bitmap_plot(0, 0); 835 836 #ifdef CONFIG_LCD_INFO 837 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 838 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 839 lcd_show_board_info(); 840 #endif /* CONFIG_LCD_INFO */ 841 842 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 843 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 844 #else 845 return (void *)lcd_base; 846 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 847 } 848 849 #ifdef CONFIG_SPLASHIMAGE_GUARD 850 static int on_splashimage(const char *name, const char *value, enum env_op op, 851 int flags) 852 { 853 ulong addr; 854 int aligned; 855 856 if (op == env_op_delete) 857 return 0; 858 859 addr = simple_strtoul(value, NULL, 16); 860 /* See README.displaying-bmps */ 861 aligned = (addr % 4 == 2); 862 if (!aligned) { 863 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 864 return -1; 865 } 866 867 return 0; 868 } 869 870 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 871 #endif 872 873 int lcd_get_pixel_width(void) 874 { 875 return panel_info.vl_col; 876 } 877 878 int lcd_get_pixel_height(void) 879 { 880 return panel_info.vl_row; 881 } 882 883 #if defined(CONFIG_LCD_DT_SIMPLEFB) 884 static int lcd_dt_simplefb_configure_node(void *blob, int off) 885 { 886 #if LCD_BPP == LCD_COLOR16 887 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 888 panel_info.vl_col, panel_info.vl_row, 889 panel_info.vl_col * 2, "r5g6b5"); 890 #else 891 return -1; 892 #endif 893 } 894 895 int lcd_dt_simplefb_add_node(void *blob) 896 { 897 static const char compat[] = "simple-framebuffer"; 898 static const char disabled[] = "disabled"; 899 int off, ret; 900 901 off = fdt_add_subnode(blob, 0, "framebuffer"); 902 if (off < 0) 903 return -1; 904 905 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 906 if (ret < 0) 907 return -1; 908 909 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 910 if (ret < 0) 911 return -1; 912 913 return lcd_dt_simplefb_configure_node(blob, off); 914 } 915 916 int lcd_dt_simplefb_enable_existing_node(void *blob) 917 { 918 int off; 919 920 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 921 if (off < 0) 922 return -1; 923 924 return lcd_dt_simplefb_configure_node(blob, off); 925 } 926 #endif 927