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 void bitmap_plot(int x, int y) 389 { 390 #ifdef CONFIG_ATMEL_LCD 391 uint *cmap = (uint *)bmp_logo_palette; 392 #else 393 ushort *cmap = (ushort *)bmp_logo_palette; 394 #endif 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 #elif defined(CONFIG_ATMEL_LCD) 421 cmap = (uint *)configuration_get_cmap(); 422 #else 423 cmap = configuration_get_cmap(); 424 #endif 425 426 WATCHDOG_RESET(); 427 428 /* Set color map */ 429 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 430 ushort colreg = bmp_logo_palette[i]; 431 #ifdef CONFIG_ATMEL_LCD 432 uint lut_entry; 433 #ifdef CONFIG_ATMEL_LCD_BGR555 434 lut_entry = ((colreg & 0x000F) << 11) | 435 ((colreg & 0x00F0) << 2) | 436 ((colreg & 0x0F00) >> 7); 437 #else /* CONFIG_ATMEL_LCD_RGB565 */ 438 lut_entry = ((colreg & 0x000F) << 1) | 439 ((colreg & 0x00F0) << 3) | 440 ((colreg & 0x0F00) << 4); 441 #endif 442 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 443 cmap++; 444 #else /* !CONFIG_ATMEL_LCD */ 445 *cmap++ = colreg; 446 #endif /* CONFIG_ATMEL_LCD */ 447 } 448 449 WATCHDOG_RESET(); 450 451 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 452 memcpy(fb, bmap, BMP_LOGO_WIDTH); 453 bmap += BMP_LOGO_WIDTH; 454 fb += panel_info.vl_col; 455 } 456 } 457 else { /* true color mode */ 458 u16 col16; 459 fb16 = (ushort *)fb; 460 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 461 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 462 col16 = bmp_logo_palette[(bmap[j]-16)]; 463 fb16[j] = 464 ((col16 & 0x000F) << 1) | 465 ((col16 & 0x00F0) << 3) | 466 ((col16 & 0x0F00) << 4); 467 } 468 bmap += BMP_LOGO_WIDTH; 469 fb16 += panel_info.vl_col; 470 } 471 } 472 473 WATCHDOG_RESET(); 474 lcd_sync(); 475 } 476 #else 477 static inline void bitmap_plot(int x, int y) {} 478 #endif /* CONFIG_LCD_LOGO */ 479 480 /*----------------------------------------------------------------------*/ 481 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 482 /* 483 * Display the BMP file located at address bmp_image. 484 * Only uncompressed. 485 */ 486 487 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 488 #define BMP_ALIGN_CENTER 0x7FFF 489 490 static void splash_align_axis(int *axis, unsigned long panel_size, 491 unsigned long picture_size) 492 { 493 unsigned long panel_picture_delta = panel_size - picture_size; 494 unsigned long axis_alignment; 495 496 if (*axis == BMP_ALIGN_CENTER) 497 axis_alignment = panel_picture_delta / 2; 498 else if (*axis < 0) 499 axis_alignment = panel_picture_delta + *axis + 1; 500 else 501 return; 502 503 *axis = max(0, (int)axis_alignment); 504 } 505 #endif 506 507 508 #ifdef CONFIG_LCD_BMP_RLE8 509 510 #define BMP_RLE8_ESCAPE 0 511 #define BMP_RLE8_EOL 0 512 #define BMP_RLE8_EOBMP 1 513 #define BMP_RLE8_DELTA 2 514 515 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 516 int cnt) 517 { 518 while (cnt > 0) { 519 *(*fbp)++ = cmap[*bmap++]; 520 cnt--; 521 } 522 } 523 524 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 525 { 526 ushort *fb = *fbp; 527 int cnt_8copy = cnt >> 3; 528 529 cnt -= cnt_8copy << 3; 530 while (cnt_8copy > 0) { 531 *fb++ = c; 532 *fb++ = c; 533 *fb++ = c; 534 *fb++ = c; 535 *fb++ = c; 536 *fb++ = c; 537 *fb++ = c; 538 *fb++ = c; 539 cnt_8copy--; 540 } 541 while (cnt > 0) { 542 *fb++ = c; 543 cnt--; 544 } 545 *fbp = fb; 546 } 547 548 /* 549 * Do not call this function directly, must be called from lcd_display_bitmap. 550 */ 551 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 552 int x_off, int y_off) 553 { 554 uchar *bmap; 555 ulong width, height; 556 ulong cnt, runlen; 557 int x, y; 558 int decode = 1; 559 560 width = get_unaligned_le32(&bmp->header.width); 561 height = get_unaligned_le32(&bmp->header.height); 562 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 563 564 x = 0; 565 y = height - 1; 566 567 while (decode) { 568 if (bmap[0] == BMP_RLE8_ESCAPE) { 569 switch (bmap[1]) { 570 case BMP_RLE8_EOL: 571 /* end of line */ 572 bmap += 2; 573 x = 0; 574 y--; 575 /* 16bpix, 2-byte per pixel, width should *2 */ 576 fb -= (width * 2 + lcd_line_length); 577 break; 578 case BMP_RLE8_EOBMP: 579 /* end of bitmap */ 580 decode = 0; 581 break; 582 case BMP_RLE8_DELTA: 583 /* delta run */ 584 x += bmap[2]; 585 y -= bmap[3]; 586 /* 16bpix, 2-byte per pixel, x should *2 */ 587 fb = (uchar *) (lcd_base + (y + y_off - 1) 588 * lcd_line_length + (x + x_off) * 2); 589 bmap += 4; 590 break; 591 default: 592 /* unencoded run */ 593 runlen = bmap[1]; 594 bmap += 2; 595 if (y < height) { 596 if (x < width) { 597 if (x + runlen > width) 598 cnt = width - x; 599 else 600 cnt = runlen; 601 draw_unencoded_bitmap( 602 (ushort **)&fb, 603 bmap, cmap, cnt); 604 } 605 x += runlen; 606 } 607 bmap += runlen; 608 if (runlen & 1) 609 bmap++; 610 } 611 } else { 612 /* encoded run */ 613 if (y < height) { 614 runlen = bmap[0]; 615 if (x < width) { 616 /* aggregate the same code */ 617 while (bmap[0] == 0xff && 618 bmap[2] != BMP_RLE8_ESCAPE && 619 bmap[1] == bmap[3]) { 620 runlen += bmap[2]; 621 bmap += 2; 622 } 623 if (x + runlen > width) 624 cnt = width - x; 625 else 626 cnt = runlen; 627 draw_encoded_bitmap((ushort **)&fb, 628 cmap[bmap[1]], cnt); 629 } 630 x += runlen; 631 } 632 bmap += 2; 633 } 634 } 635 } 636 #endif 637 638 #if defined(CONFIG_MPC823) 639 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 640 #else 641 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 642 #endif 643 644 #if defined(CONFIG_BMP_16BPP) 645 #if defined(CONFIG_ATMEL_LCD_BGR555) 646 static inline void fb_put_word(uchar **fb, uchar **from) 647 { 648 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 649 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 650 *from += 2; 651 } 652 #else 653 static inline void fb_put_word(uchar **fb, uchar **from) 654 { 655 *(*fb)++ = *(*from)++; 656 *(*fb)++ = *(*from)++; 657 } 658 #endif 659 #endif /* CONFIG_BMP_16BPP */ 660 661 int lcd_display_bitmap(ulong bmp_image, int x, int y) 662 { 663 ushort *cmap = NULL; 664 ushort *cmap_base = NULL; 665 ushort i, j; 666 uchar *fb; 667 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 668 uchar *bmap; 669 ushort padded_width; 670 unsigned long width, height, byte_width; 671 unsigned long pwidth = panel_info.vl_col; 672 unsigned colors, bpix, bmp_bpix; 673 674 if (!bmp || !(bmp->header.signature[0] == 'B' && 675 bmp->header.signature[1] == 'M')) { 676 printf("Error: no valid bmp image at %lx\n", bmp_image); 677 678 return 1; 679 } 680 681 width = get_unaligned_le32(&bmp->header.width); 682 height = get_unaligned_le32(&bmp->header.height); 683 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 684 685 colors = 1 << bmp_bpix; 686 687 bpix = NBITS(panel_info.vl_bpix); 688 689 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 690 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 691 bpix, bmp_bpix); 692 693 return 1; 694 } 695 696 /* 697 * We support displaying 8bpp BMPs on 16bpp LCDs 698 * and displaying 24bpp BMPs on 32bpp LCDs 699 * */ 700 if (bpix != bmp_bpix && 701 !(bmp_bpix == 8 && bpix == 16) && 702 !(bmp_bpix == 24 && bpix == 32)) { 703 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 704 bpix, get_unaligned_le16(&bmp->header.bit_count)); 705 return 1; 706 } 707 708 debug("Display-bmp: %d x %d with %d colors\n", 709 (int)width, (int)height, (int)colors); 710 711 if (bmp_bpix == 8) { 712 cmap = configuration_get_cmap(); 713 cmap_base = cmap; 714 715 /* Set color map */ 716 for (i = 0; i < colors; ++i) { 717 bmp_color_table_entry_t cte = bmp->color_table[i]; 718 #if !defined(CONFIG_ATMEL_LCD) 719 ushort colreg = 720 ( ((cte.red) << 8) & 0xf800) | 721 ( ((cte.green) << 3) & 0x07e0) | 722 ( ((cte.blue) >> 3) & 0x001f) ; 723 *cmap = colreg; 724 #if defined(CONFIG_MPC823) 725 cmap--; 726 #else 727 cmap++; 728 #endif 729 #else /* CONFIG_ATMEL_LCD */ 730 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 731 #endif 732 } 733 } 734 735 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 736 737 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 738 splash_align_axis(&x, pwidth, width); 739 splash_align_axis(&y, panel_info.vl_row, height); 740 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 741 742 if ((x + width) > pwidth) 743 width = pwidth - x; 744 if ((y + height) > panel_info.vl_row) 745 height = panel_info.vl_row - y; 746 747 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 748 fb = (uchar *)(lcd_base + 749 (y + height - 1) * lcd_line_length + x * bpix / 8); 750 751 switch (bmp_bpix) { 752 case 1: /* pass through */ 753 case 8: { 754 #ifdef CONFIG_LCD_BMP_RLE8 755 u32 compression = get_unaligned_le32(&bmp->header.compression); 756 if (compression == BMP_BI_RLE8) { 757 if (bpix != 16) { 758 /* TODO implement render code for bpix != 16 */ 759 printf("Error: only support 16 bpix"); 760 return 1; 761 } 762 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 763 break; 764 } 765 #endif 766 767 if (bpix != 16) 768 byte_width = width; 769 else 770 byte_width = width * 2; 771 772 for (i = 0; i < height; ++i) { 773 WATCHDOG_RESET(); 774 for (j = 0; j < width; j++) { 775 if (bpix != 16) { 776 FB_PUT_BYTE(fb, bmap); 777 } else { 778 *(uint16_t *)fb = cmap_base[*(bmap++)]; 779 fb += sizeof(uint16_t) / sizeof(*fb); 780 } 781 } 782 bmap += (padded_width - width); 783 fb -= byte_width + lcd_line_length; 784 } 785 break; 786 } 787 #if defined(CONFIG_BMP_16BPP) 788 case 16: 789 for (i = 0; i < height; ++i) { 790 WATCHDOG_RESET(); 791 for (j = 0; j < width; j++) 792 fb_put_word(&fb, &bmap); 793 794 bmap += (padded_width - width) * 2; 795 fb -= width * 2 + lcd_line_length; 796 } 797 break; 798 #endif /* CONFIG_BMP_16BPP */ 799 #if defined(CONFIG_BMP_24BMP) 800 case 24: 801 for (i = 0; i < height; ++i) { 802 for (j = 0; j < width; j++) { 803 *(fb++) = *(bmap++); 804 *(fb++) = *(bmap++); 805 *(fb++) = *(bmap++); 806 *(fb++) = 0; 807 } 808 fb -= lcd_line_length + width * (bpix / 8); 809 } 810 break; 811 #endif /* CONFIG_BMP_24BMP */ 812 #if defined(CONFIG_BMP_32BPP) 813 case 32: 814 for (i = 0; i < height; ++i) { 815 for (j = 0; j < width; j++) { 816 *(fb++) = *(bmap++); 817 *(fb++) = *(bmap++); 818 *(fb++) = *(bmap++); 819 *(fb++) = *(bmap++); 820 } 821 fb -= lcd_line_length + width * (bpix / 8); 822 } 823 break; 824 #endif /* CONFIG_BMP_32BPP */ 825 default: 826 break; 827 }; 828 829 lcd_sync(); 830 return 0; 831 } 832 #endif 833 834 static void *lcd_logo(void) 835 { 836 #ifdef CONFIG_SPLASH_SCREEN 837 char *s; 838 ulong addr; 839 static int do_splash = 1; 840 841 if (do_splash && (s = getenv("splashimage")) != NULL) { 842 int x = 0, y = 0; 843 do_splash = 0; 844 845 if (splash_screen_prepare()) 846 return (void *)lcd_base; 847 848 addr = simple_strtoul (s, NULL, 16); 849 850 splash_get_pos(&x, &y); 851 852 if (bmp_display(addr, x, y) == 0) 853 return (void *)lcd_base; 854 } 855 #endif /* CONFIG_SPLASH_SCREEN */ 856 857 bitmap_plot(0, 0); 858 859 #ifdef CONFIG_LCD_INFO 860 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 861 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 862 lcd_show_board_info(); 863 #endif /* CONFIG_LCD_INFO */ 864 865 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 866 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 867 #else 868 return (void *)lcd_base; 869 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 870 } 871 872 #ifdef CONFIG_SPLASHIMAGE_GUARD 873 static int on_splashimage(const char *name, const char *value, enum env_op op, 874 int flags) 875 { 876 ulong addr; 877 int aligned; 878 879 if (op == env_op_delete) 880 return 0; 881 882 addr = simple_strtoul(value, NULL, 16); 883 /* See README.displaying-bmps */ 884 aligned = (addr % 4 == 2); 885 if (!aligned) { 886 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 887 return -1; 888 } 889 890 return 0; 891 } 892 893 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 894 #endif 895 896 int lcd_get_pixel_width(void) 897 { 898 return panel_info.vl_col; 899 } 900 901 int lcd_get_pixel_height(void) 902 { 903 return panel_info.vl_row; 904 } 905 906 #if defined(CONFIG_LCD_DT_SIMPLEFB) 907 static int lcd_dt_simplefb_configure_node(void *blob, int off) 908 { 909 #if LCD_BPP == LCD_COLOR16 910 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 911 panel_info.vl_col, panel_info.vl_row, 912 panel_info.vl_col * 2, "r5g6b5"); 913 #else 914 return -1; 915 #endif 916 } 917 918 int lcd_dt_simplefb_add_node(void *blob) 919 { 920 static const char compat[] = "simple-framebuffer"; 921 static const char disabled[] = "disabled"; 922 int off, ret; 923 924 off = fdt_add_subnode(blob, 0, "framebuffer"); 925 if (off < 0) 926 return -1; 927 928 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 929 if (ret < 0) 930 return -1; 931 932 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 933 if (ret < 0) 934 return -1; 935 936 return lcd_dt_simplefb_configure_node(blob, off); 937 } 938 939 int lcd_dt_simplefb_enable_existing_node(void *blob) 940 { 941 int off; 942 943 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 944 if (off < 0) 945 return -1; 946 947 return lcd_dt_simplefb_configure_node(blob, off); 948 } 949 #endif 950