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