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 <env_callback.h> 20 #include <linux/types.h> 21 #include <stdio_dev.h> 22 #include <lcd.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 <fdt_support.h> 29 30 #if defined(CONFIG_LCD_DT_SIMPLEFB) 31 #include <libfdt.h> 32 #endif 33 34 /************************************************************************/ 35 /* ** FONT DATA */ 36 /************************************************************************/ 37 #include <video_font.h> /* Get font data, width and height */ 38 39 /************************************************************************/ 40 /* ** LOGO DATA */ 41 /************************************************************************/ 42 #ifdef CONFIG_LCD_LOGO 43 # include <bmp_logo.h> /* Get logo data, width and height */ 44 # include <bmp_logo_data.h> 45 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 46 # error Default Color Map overlaps with Logo Color Map 47 # endif 48 #endif 49 50 #ifdef CONFIG_SANDBOX 51 #include <asm/sdl.h> 52 #endif 53 54 #ifndef CONFIG_LCD_ALIGNMENT 55 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 56 #endif 57 58 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \ 59 (LCD_BPP != LCD_COLOR32) 60 # error Unsupported LCD BPP. 61 #endif 62 63 DECLARE_GLOBAL_DATA_PTR; 64 65 static int lcd_init(void *lcdbase); 66 67 static void *lcd_logo(void); 68 69 static void lcd_setfgcolor(int color); 70 static void lcd_setbgcolor(int color); 71 72 static int lcd_color_fg; 73 static int lcd_color_bg; 74 int lcd_line_length; 75 76 char lcd_is_enabled = 0; 77 78 static void *lcd_base; /* Start of framebuffer memory */ 79 80 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 81 82 /************************************************************************/ 83 84 /* Flush LCD activity to the caches */ 85 void lcd_sync(void) 86 { 87 /* 88 * flush_dcache_range() is declared in common.h but it seems that some 89 * architectures do not actually implement it. Is there a way to find 90 * out whether it exists? For now, ARM is safe. 91 */ 92 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 93 int line_length; 94 95 if (lcd_flush_dcache) 96 flush_dcache_range((u32)lcd_base, 97 (u32)(lcd_base + lcd_get_size(&line_length))); 98 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 99 static ulong last_sync; 100 101 if (get_timer(last_sync) > 10) { 102 sandbox_sdl_sync(lcd_base); 103 last_sync = get_timer(0); 104 } 105 #endif 106 } 107 108 void lcd_set_flush_dcache(int flush) 109 { 110 lcd_flush_dcache = (flush != 0); 111 } 112 113 /*----------------------------------------------------------------------*/ 114 115 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 116 { 117 lcd_putc(c); 118 } 119 120 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 121 { 122 lcd_puts(s); 123 } 124 125 /************************************************************************/ 126 /** Small utility to check that you got the colours right */ 127 /************************************************************************/ 128 #ifdef LCD_TEST_PATTERN 129 130 #define N_BLK_VERT 2 131 #define N_BLK_HOR 3 132 133 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 134 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 135 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 136 }; 137 138 static void test_pattern(void) 139 { 140 ushort v_max = panel_info.vl_row; 141 ushort h_max = panel_info.vl_col; 142 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 143 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 144 ushort v, h; 145 uchar *pix = (uchar *)lcd_base; 146 147 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 148 h_max, v_max, h_step, v_step); 149 150 /* WARNING: Code silently assumes 8bit/pixel */ 151 for (v = 0; v < v_max; ++v) { 152 uchar iy = v / v_step; 153 for (h = 0; h < h_max; ++h) { 154 uchar ix = N_BLK_HOR * iy + h / h_step; 155 *pix++ = test_colors[ix]; 156 } 157 } 158 } 159 #endif /* LCD_TEST_PATTERN */ 160 161 162 /************************************************************************/ 163 /* ** GENERIC Initialization Routines */ 164 /************************************************************************/ 165 /* 166 * With most lcd drivers the line length is set up 167 * by calculating it from panel_info parameters. Some 168 * drivers need to calculate the line length differently, 169 * so make the function weak to allow overriding it. 170 */ 171 __weak int lcd_get_size(int *line_length) 172 { 173 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 174 return *line_length * panel_info.vl_row; 175 } 176 177 int drv_lcd_init(void) 178 { 179 struct stdio_dev lcddev; 180 int rc; 181 182 lcd_base = map_sysmem(gd->fb_base, 0); 183 184 lcd_init(lcd_base); /* LCD initialization */ 185 186 /* Device initialization */ 187 memset(&lcddev, 0, sizeof(lcddev)); 188 189 strcpy(lcddev.name, "lcd"); 190 lcddev.ext = 0; /* No extensions */ 191 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 192 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 193 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 194 195 rc = stdio_register(&lcddev); 196 197 return (rc == 0) ? 1 : rc; 198 } 199 200 /*----------------------------------------------------------------------*/ 201 void lcd_clear(void) 202 { 203 short console_rows, console_cols; 204 int bg_color; 205 #if LCD_BPP == LCD_COLOR8 206 /* Setting the palette */ 207 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 208 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 209 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 210 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 211 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 212 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 213 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 214 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 215 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 216 #endif 217 218 #ifndef CONFIG_SYS_WHITE_ON_BLACK 219 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 220 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 221 bg_color = CONSOLE_COLOR_WHITE; 222 #else 223 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 224 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 225 bg_color = CONSOLE_COLOR_BLACK; 226 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 227 228 #ifdef LCD_TEST_PATTERN 229 test_pattern(); 230 #else 231 /* set framebuffer to background color */ 232 #if (LCD_BPP != LCD_COLOR32) 233 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row); 234 #else 235 u32 *ppix = lcd_base; 236 u32 i; 237 for (i = 0; 238 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 239 i++) { 240 *ppix++ = bg_color; 241 } 242 #endif 243 #endif 244 /* Paint the logo and retrieve LCD base address */ 245 debug("[LCD] Drawing the logo...\n"); 246 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 247 console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT); 248 console_rows /= VIDEO_FONT_HEIGHT; 249 #else 250 console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT; 251 #endif 252 console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH; 253 lcd_init_console(lcd_base, console_rows, console_cols); 254 lcd_init_console(lcd_logo(), console_rows, console_cols); 255 lcd_sync(); 256 } 257 258 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 259 char *const argv[]) 260 { 261 lcd_clear(); 262 return 0; 263 } 264 265 U_BOOT_CMD( 266 cls, 1, 1, do_lcd_clear, 267 "clear screen", 268 "" 269 ); 270 271 /*----------------------------------------------------------------------*/ 272 273 static int lcd_init(void *lcdbase) 274 { 275 /* Initialize the lcd controller */ 276 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 277 278 lcd_ctrl_init(lcdbase); 279 280 /* 281 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 282 * the 'lcdbase' argument and uses custom lcd base address 283 * by setting up gd->fb_base. Check for this condition and fixup 284 * 'lcd_base' address. 285 */ 286 if (map_to_sysmem(lcdbase) != gd->fb_base) 287 lcd_base = map_sysmem(gd->fb_base, 0); 288 289 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 290 291 lcd_get_size(&lcd_line_length); 292 lcd_is_enabled = 1; 293 lcd_clear(); 294 lcd_enable(); 295 296 /* Initialize the console */ 297 lcd_set_col(0); 298 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 299 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 300 #else 301 lcd_set_row(1); /* leave 1 blank line below logo */ 302 #endif 303 304 return 0; 305 } 306 307 308 /************************************************************************/ 309 /* ** ROM capable initialization part - needed to reserve FB memory */ 310 /************************************************************************/ 311 /* 312 * This is called early in the system initialization to grab memory 313 * for the LCD controller. 314 * Returns new address for monitor, after reserving LCD buffer memory 315 * 316 * Note that this is running from ROM, so no write access to global data. 317 */ 318 ulong lcd_setmem(ulong addr) 319 { 320 ulong size; 321 int line_length; 322 323 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 324 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 325 326 size = lcd_get_size(&line_length); 327 328 /* Round up to nearest full page, or MMU section if defined */ 329 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 330 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 331 332 /* Allocate pages for the frame buffer. */ 333 addr -= size; 334 335 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 336 size >> 10, addr); 337 338 return addr; 339 } 340 341 /*----------------------------------------------------------------------*/ 342 343 static void lcd_setfgcolor(int color) 344 { 345 lcd_color_fg = color; 346 } 347 348 int lcd_getfgcolor(void) 349 { 350 return lcd_color_fg; 351 } 352 353 /*----------------------------------------------------------------------*/ 354 355 static void lcd_setbgcolor(int color) 356 { 357 lcd_color_bg = color; 358 } 359 360 int lcd_getbgcolor(void) 361 { 362 return lcd_color_bg; 363 } 364 365 /************************************************************************/ 366 /* ** Chipset depending Bitmap / Logo stuff... */ 367 /************************************************************************/ 368 369 #ifdef CONFIG_LCD_LOGO 370 __weak void lcd_logo_set_cmap(void) 371 { 372 int i; 373 ushort *cmap = configuration_get_cmap(); 374 375 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) 376 *cmap++ = bmp_logo_palette[i]; 377 } 378 379 void bitmap_plot(int x, int y) 380 { 381 ushort i, j; 382 uchar *bmap; 383 uchar *fb; 384 ushort *fb16; 385 unsigned bpix = NBITS(panel_info.vl_bpix); 386 387 debug("Logo: width %d height %d colors %d\n", 388 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS); 389 390 bmap = &bmp_logo_bitmap[0]; 391 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 392 393 if (bpix < 12) { 394 WATCHDOG_RESET(); 395 lcd_logo_set_cmap(); 396 WATCHDOG_RESET(); 397 398 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 399 memcpy(fb, bmap, BMP_LOGO_WIDTH); 400 bmap += BMP_LOGO_WIDTH; 401 fb += panel_info.vl_col; 402 } 403 } 404 else { /* true color mode */ 405 u16 col16; 406 fb16 = (ushort *)fb; 407 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 408 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 409 col16 = bmp_logo_palette[(bmap[j]-16)]; 410 fb16[j] = 411 ((col16 & 0x000F) << 1) | 412 ((col16 & 0x00F0) << 3) | 413 ((col16 & 0x0F00) << 4); 414 } 415 bmap += BMP_LOGO_WIDTH; 416 fb16 += panel_info.vl_col; 417 } 418 } 419 420 WATCHDOG_RESET(); 421 lcd_sync(); 422 } 423 #else 424 static inline void bitmap_plot(int x, int y) {} 425 #endif /* CONFIG_LCD_LOGO */ 426 427 /*----------------------------------------------------------------------*/ 428 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 429 /* 430 * Display the BMP file located at address bmp_image. 431 * Only uncompressed. 432 */ 433 434 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 435 #define BMP_ALIGN_CENTER 0x7FFF 436 437 static void splash_align_axis(int *axis, unsigned long panel_size, 438 unsigned long picture_size) 439 { 440 unsigned long panel_picture_delta = panel_size - picture_size; 441 unsigned long axis_alignment; 442 443 if (*axis == BMP_ALIGN_CENTER) 444 axis_alignment = panel_picture_delta / 2; 445 else if (*axis < 0) 446 axis_alignment = panel_picture_delta + *axis + 1; 447 else 448 return; 449 450 *axis = max(0, (int)axis_alignment); 451 } 452 #endif 453 454 455 #ifdef CONFIG_LCD_BMP_RLE8 456 457 #define BMP_RLE8_ESCAPE 0 458 #define BMP_RLE8_EOL 0 459 #define BMP_RLE8_EOBMP 1 460 #define BMP_RLE8_DELTA 2 461 462 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 463 int cnt) 464 { 465 while (cnt > 0) { 466 *(*fbp)++ = cmap[*bmap++]; 467 cnt--; 468 } 469 } 470 471 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 472 { 473 ushort *fb = *fbp; 474 int cnt_8copy = cnt >> 3; 475 476 cnt -= cnt_8copy << 3; 477 while (cnt_8copy > 0) { 478 *fb++ = c; 479 *fb++ = c; 480 *fb++ = c; 481 *fb++ = c; 482 *fb++ = c; 483 *fb++ = c; 484 *fb++ = c; 485 *fb++ = c; 486 cnt_8copy--; 487 } 488 while (cnt > 0) { 489 *fb++ = c; 490 cnt--; 491 } 492 *fbp = fb; 493 } 494 495 /* 496 * Do not call this function directly, must be called from lcd_display_bitmap. 497 */ 498 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 499 int x_off, int y_off) 500 { 501 uchar *bmap; 502 ulong width, height; 503 ulong cnt, runlen; 504 int x, y; 505 int decode = 1; 506 507 width = get_unaligned_le32(&bmp->header.width); 508 height = get_unaligned_le32(&bmp->header.height); 509 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 510 511 x = 0; 512 y = height - 1; 513 514 while (decode) { 515 if (bmap[0] == BMP_RLE8_ESCAPE) { 516 switch (bmap[1]) { 517 case BMP_RLE8_EOL: 518 /* end of line */ 519 bmap += 2; 520 x = 0; 521 y--; 522 /* 16bpix, 2-byte per pixel, width should *2 */ 523 fb -= (width * 2 + lcd_line_length); 524 break; 525 case BMP_RLE8_EOBMP: 526 /* end of bitmap */ 527 decode = 0; 528 break; 529 case BMP_RLE8_DELTA: 530 /* delta run */ 531 x += bmap[2]; 532 y -= bmap[3]; 533 /* 16bpix, 2-byte per pixel, x should *2 */ 534 fb = (uchar *) (lcd_base + (y + y_off - 1) 535 * lcd_line_length + (x + x_off) * 2); 536 bmap += 4; 537 break; 538 default: 539 /* unencoded run */ 540 runlen = bmap[1]; 541 bmap += 2; 542 if (y < height) { 543 if (x < width) { 544 if (x + runlen > width) 545 cnt = width - x; 546 else 547 cnt = runlen; 548 draw_unencoded_bitmap( 549 (ushort **)&fb, 550 bmap, cmap, cnt); 551 } 552 x += runlen; 553 } 554 bmap += runlen; 555 if (runlen & 1) 556 bmap++; 557 } 558 } else { 559 /* encoded run */ 560 if (y < height) { 561 runlen = bmap[0]; 562 if (x < width) { 563 /* aggregate the same code */ 564 while (bmap[0] == 0xff && 565 bmap[2] != BMP_RLE8_ESCAPE && 566 bmap[1] == bmap[3]) { 567 runlen += bmap[2]; 568 bmap += 2; 569 } 570 if (x + runlen > width) 571 cnt = width - x; 572 else 573 cnt = runlen; 574 draw_encoded_bitmap((ushort **)&fb, 575 cmap[bmap[1]], cnt); 576 } 577 x += runlen; 578 } 579 bmap += 2; 580 } 581 } 582 } 583 #endif 584 585 __weak void fb_put_byte(uchar **fb, uchar **from) 586 { 587 *(*fb)++ = *(*from)++; 588 } 589 590 #if defined(CONFIG_BMP_16BPP) 591 __weak void fb_put_word(uchar **fb, uchar **from) 592 { 593 *(*fb)++ = *(*from)++; 594 *(*fb)++ = *(*from)++; 595 } 596 #endif /* CONFIG_BMP_16BPP */ 597 598 __weak void lcd_set_cmap(bmp_image_t *bmp, unsigned colors) 599 { 600 int i; 601 bmp_color_table_entry_t cte; 602 ushort *cmap = configuration_get_cmap(); 603 604 for (i = 0; i < colors; ++i) { 605 cte = bmp->color_table[i]; 606 *cmap = (((cte.red) << 8) & 0xf800) | 607 (((cte.green) << 3) & 0x07e0) | 608 (((cte.blue) >> 3) & 0x001f); 609 #if defined(CONFIG_MPC823) 610 cmap--; 611 #else 612 cmap++; 613 #endif 614 } 615 } 616 617 int lcd_display_bitmap(ulong bmp_image, int x, int y) 618 { 619 ushort *cmap_base = NULL; 620 ushort i, j; 621 uchar *fb; 622 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 623 uchar *bmap; 624 ushort padded_width; 625 unsigned long width, height, byte_width; 626 unsigned long pwidth = panel_info.vl_col; 627 unsigned colors, bpix, bmp_bpix; 628 629 if (!bmp || !(bmp->header.signature[0] == 'B' && 630 bmp->header.signature[1] == 'M')) { 631 printf("Error: no valid bmp image at %lx\n", bmp_image); 632 633 return 1; 634 } 635 636 width = get_unaligned_le32(&bmp->header.width); 637 height = get_unaligned_le32(&bmp->header.height); 638 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 639 640 colors = 1 << bmp_bpix; 641 642 bpix = NBITS(panel_info.vl_bpix); 643 644 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 645 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 646 bpix, bmp_bpix); 647 648 return 1; 649 } 650 651 /* 652 * We support displaying 8bpp BMPs on 16bpp LCDs 653 * and displaying 24bpp BMPs on 32bpp LCDs 654 * */ 655 if (bpix != bmp_bpix && 656 !(bmp_bpix == 8 && bpix == 16) && 657 !(bmp_bpix == 24 && bpix == 32)) { 658 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 659 bpix, get_unaligned_le16(&bmp->header.bit_count)); 660 return 1; 661 } 662 663 debug("Display-bmp: %d x %d with %d colors\n", 664 (int)width, (int)height, (int)colors); 665 666 if (bmp_bpix == 8) 667 lcd_set_cmap(bmp, colors); 668 669 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 670 671 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 672 splash_align_axis(&x, pwidth, width); 673 splash_align_axis(&y, panel_info.vl_row, height); 674 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 675 676 if ((x + width) > pwidth) 677 width = pwidth - x; 678 if ((y + height) > panel_info.vl_row) 679 height = panel_info.vl_row - y; 680 681 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 682 fb = (uchar *)(lcd_base + 683 (y + height - 1) * lcd_line_length + x * bpix / 8); 684 685 switch (bmp_bpix) { 686 case 1: /* pass through */ 687 case 8: { 688 cmap_base = configuration_get_cmap(); 689 #ifdef CONFIG_LCD_BMP_RLE8 690 u32 compression = get_unaligned_le32(&bmp->header.compression); 691 if (compression == BMP_BI_RLE8) { 692 if (bpix != 16) { 693 /* TODO implement render code for bpix != 16 */ 694 printf("Error: only support 16 bpix"); 695 return 1; 696 } 697 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 698 break; 699 } 700 #endif 701 702 if (bpix != 16) 703 byte_width = width; 704 else 705 byte_width = width * 2; 706 707 for (i = 0; i < height; ++i) { 708 WATCHDOG_RESET(); 709 for (j = 0; j < width; j++) { 710 if (bpix != 16) { 711 fb_put_byte(&fb, &bmap); 712 } else { 713 *(uint16_t *)fb = cmap_base[*(bmap++)]; 714 fb += sizeof(uint16_t) / sizeof(*fb); 715 } 716 } 717 bmap += (padded_width - width); 718 fb -= byte_width + lcd_line_length; 719 } 720 break; 721 } 722 #if defined(CONFIG_BMP_16BPP) 723 case 16: 724 for (i = 0; i < height; ++i) { 725 WATCHDOG_RESET(); 726 for (j = 0; j < width; j++) 727 fb_put_word(&fb, &bmap); 728 729 bmap += (padded_width - width) * 2; 730 fb -= width * 2 + lcd_line_length; 731 } 732 break; 733 #endif /* CONFIG_BMP_16BPP */ 734 #if defined(CONFIG_BMP_24BMP) 735 case 24: 736 for (i = 0; i < height; ++i) { 737 for (j = 0; j < width; j++) { 738 *(fb++) = *(bmap++); 739 *(fb++) = *(bmap++); 740 *(fb++) = *(bmap++); 741 *(fb++) = 0; 742 } 743 fb -= lcd_line_length + width * (bpix / 8); 744 } 745 break; 746 #endif /* CONFIG_BMP_24BMP */ 747 #if defined(CONFIG_BMP_32BPP) 748 case 32: 749 for (i = 0; i < height; ++i) { 750 for (j = 0; j < width; j++) { 751 *(fb++) = *(bmap++); 752 *(fb++) = *(bmap++); 753 *(fb++) = *(bmap++); 754 *(fb++) = *(bmap++); 755 } 756 fb -= lcd_line_length + width * (bpix / 8); 757 } 758 break; 759 #endif /* CONFIG_BMP_32BPP */ 760 default: 761 break; 762 }; 763 764 lcd_sync(); 765 return 0; 766 } 767 #endif 768 769 static void *lcd_logo(void) 770 { 771 #ifdef CONFIG_SPLASH_SCREEN 772 char *s; 773 ulong addr; 774 static int do_splash = 1; 775 776 if (do_splash && (s = getenv("splashimage")) != NULL) { 777 int x = 0, y = 0; 778 do_splash = 0; 779 780 if (splash_screen_prepare()) 781 return (void *)lcd_base; 782 783 addr = simple_strtoul (s, NULL, 16); 784 785 splash_get_pos(&x, &y); 786 787 if (bmp_display(addr, x, y) == 0) 788 return (void *)lcd_base; 789 } 790 #endif /* CONFIG_SPLASH_SCREEN */ 791 792 bitmap_plot(0, 0); 793 794 #ifdef CONFIG_LCD_INFO 795 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 796 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 797 lcd_show_board_info(); 798 #endif /* CONFIG_LCD_INFO */ 799 800 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 801 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 802 #else 803 return (void *)lcd_base; 804 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 805 } 806 807 #ifdef CONFIG_SPLASHIMAGE_GUARD 808 static int on_splashimage(const char *name, const char *value, enum env_op op, 809 int flags) 810 { 811 ulong addr; 812 int aligned; 813 814 if (op == env_op_delete) 815 return 0; 816 817 addr = simple_strtoul(value, NULL, 16); 818 /* See README.displaying-bmps */ 819 aligned = (addr % 4 == 2); 820 if (!aligned) { 821 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 822 return -1; 823 } 824 825 return 0; 826 } 827 828 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 829 #endif 830 831 int lcd_get_pixel_width(void) 832 { 833 return panel_info.vl_col; 834 } 835 836 int lcd_get_pixel_height(void) 837 { 838 return panel_info.vl_row; 839 } 840 841 #if defined(CONFIG_LCD_DT_SIMPLEFB) 842 static int lcd_dt_simplefb_configure_node(void *blob, int off) 843 { 844 #if LCD_BPP == LCD_COLOR16 845 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 846 panel_info.vl_col, panel_info.vl_row, 847 panel_info.vl_col * 2, "r5g6b5"); 848 #else 849 return -1; 850 #endif 851 } 852 853 int lcd_dt_simplefb_add_node(void *blob) 854 { 855 static const char compat[] = "simple-framebuffer"; 856 static const char disabled[] = "disabled"; 857 int off, ret; 858 859 off = fdt_add_subnode(blob, 0, "framebuffer"); 860 if (off < 0) 861 return -1; 862 863 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 864 if (ret < 0) 865 return -1; 866 867 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 868 if (ret < 0) 869 return -1; 870 871 return lcd_dt_simplefb_configure_node(blob, off); 872 } 873 874 int lcd_dt_simplefb_enable_existing_node(void *blob) 875 { 876 int off; 877 878 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 879 if (off < 0) 880 return -1; 881 882 return lcd_dt_simplefb_configure_node(blob, off); 883 } 884 #endif 885