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_logo(), console_rows, console_cols); 272 lcd_sync(); 273 } 274 275 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 276 char *const argv[]) 277 { 278 lcd_clear(); 279 return 0; 280 } 281 282 U_BOOT_CMD( 283 cls, 1, 1, do_lcd_clear, 284 "clear screen", 285 "" 286 ); 287 288 /*----------------------------------------------------------------------*/ 289 290 static int lcd_init(void *lcdbase) 291 { 292 /* Initialize the lcd controller */ 293 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 294 295 lcd_ctrl_init(lcdbase); 296 297 /* 298 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 299 * the 'lcdbase' argument and uses custom lcd base address 300 * by setting up gd->fb_base. Check for this condition and fixup 301 * 'lcd_base' address. 302 */ 303 if (map_to_sysmem(lcdbase) != gd->fb_base) 304 lcd_base = map_sysmem(gd->fb_base, 0); 305 306 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 307 308 lcd_get_size(&lcd_line_length); 309 lcd_is_enabled = 1; 310 lcd_clear(); 311 lcd_enable(); 312 313 /* Initialize the console */ 314 lcd_set_col(0); 315 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 316 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 317 #else 318 lcd_set_row(1); /* leave 1 blank line below logo */ 319 #endif 320 321 return 0; 322 } 323 324 325 /************************************************************************/ 326 /* ** ROM capable initialization part - needed to reserve FB memory */ 327 /************************************************************************/ 328 /* 329 * This is called early in the system initialization to grab memory 330 * for the LCD controller. 331 * Returns new address for monitor, after reserving LCD buffer memory 332 * 333 * Note that this is running from ROM, so no write access to global data. 334 */ 335 ulong lcd_setmem(ulong addr) 336 { 337 ulong size; 338 int line_length; 339 340 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 341 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 342 343 size = lcd_get_size(&line_length); 344 345 /* Round up to nearest full page, or MMU section if defined */ 346 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 347 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 348 349 /* Allocate pages for the frame buffer. */ 350 addr -= size; 351 352 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 353 size >> 10, addr); 354 355 return addr; 356 } 357 358 /*----------------------------------------------------------------------*/ 359 360 static void lcd_setfgcolor(int color) 361 { 362 lcd_color_fg = color; 363 } 364 365 int lcd_getfgcolor(void) 366 { 367 return lcd_color_fg; 368 } 369 370 /*----------------------------------------------------------------------*/ 371 372 static void lcd_setbgcolor(int color) 373 { 374 lcd_color_bg = color; 375 } 376 377 int lcd_getbgcolor(void) 378 { 379 return lcd_color_bg; 380 } 381 382 /************************************************************************/ 383 /* ** Chipset depending Bitmap / Logo stuff... */ 384 /************************************************************************/ 385 static inline ushort *configuration_get_cmap(void) 386 { 387 #if defined CONFIG_CPU_PXA 388 struct pxafb_info *fbi = &panel_info.pxa; 389 return (ushort *)fbi->palette; 390 #elif defined(CONFIG_MPC823) 391 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 392 cpm8xx_t *cp = &(immr->im_cpm); 393 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 394 #elif defined(CONFIG_ATMEL_LCD) 395 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 396 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 397 return panel_info.cmap; 398 #elif defined(CONFIG_LCD_LOGO) 399 return bmp_logo_palette; 400 #else 401 return NULL; 402 #endif 403 } 404 405 #ifdef CONFIG_LCD_LOGO 406 void bitmap_plot(int x, int y) 407 { 408 #ifdef CONFIG_ATMEL_LCD 409 uint *cmap = (uint *)bmp_logo_palette; 410 #else 411 ushort *cmap = (ushort *)bmp_logo_palette; 412 #endif 413 ushort i, j; 414 uchar *bmap; 415 uchar *fb; 416 ushort *fb16; 417 #if defined(CONFIG_MPC823) 418 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 419 cpm8xx_t *cp = &(immr->im_cpm); 420 #endif 421 unsigned bpix = NBITS(panel_info.vl_bpix); 422 423 debug("Logo: width %d height %d colors %d cmap %d\n", 424 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 425 ARRAY_SIZE(bmp_logo_palette)); 426 427 bmap = &bmp_logo_bitmap[0]; 428 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 429 430 if (bpix < 12) { 431 /* Leave room for default color map 432 * default case: generic system with no cmap (most likely 16bpp) 433 * cmap was set to the source palette, so no change is done. 434 * This avoids even more ifdefs in the next stanza 435 */ 436 #if defined(CONFIG_MPC823) 437 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 438 #elif defined(CONFIG_ATMEL_LCD) 439 cmap = (uint *)configuration_get_cmap(); 440 #else 441 cmap = configuration_get_cmap(); 442 #endif 443 444 WATCHDOG_RESET(); 445 446 /* Set color map */ 447 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 448 ushort colreg = bmp_logo_palette[i]; 449 #ifdef CONFIG_ATMEL_LCD 450 uint lut_entry; 451 #ifdef CONFIG_ATMEL_LCD_BGR555 452 lut_entry = ((colreg & 0x000F) << 11) | 453 ((colreg & 0x00F0) << 2) | 454 ((colreg & 0x0F00) >> 7); 455 #else /* CONFIG_ATMEL_LCD_RGB565 */ 456 lut_entry = ((colreg & 0x000F) << 1) | 457 ((colreg & 0x00F0) << 3) | 458 ((colreg & 0x0F00) << 4); 459 #endif 460 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 461 cmap++; 462 #else /* !CONFIG_ATMEL_LCD */ 463 *cmap++ = colreg; 464 #endif /* CONFIG_ATMEL_LCD */ 465 } 466 467 WATCHDOG_RESET(); 468 469 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 470 memcpy(fb, bmap, BMP_LOGO_WIDTH); 471 bmap += BMP_LOGO_WIDTH; 472 fb += panel_info.vl_col; 473 } 474 } 475 else { /* true color mode */ 476 u16 col16; 477 fb16 = (ushort *)fb; 478 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 479 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 480 col16 = bmp_logo_palette[(bmap[j]-16)]; 481 fb16[j] = 482 ((col16 & 0x000F) << 1) | 483 ((col16 & 0x00F0) << 3) | 484 ((col16 & 0x0F00) << 4); 485 } 486 bmap += BMP_LOGO_WIDTH; 487 fb16 += panel_info.vl_col; 488 } 489 } 490 491 WATCHDOG_RESET(); 492 lcd_sync(); 493 } 494 #else 495 static inline void bitmap_plot(int x, int y) {} 496 #endif /* CONFIG_LCD_LOGO */ 497 498 /*----------------------------------------------------------------------*/ 499 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 500 /* 501 * Display the BMP file located at address bmp_image. 502 * Only uncompressed. 503 */ 504 505 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 506 #define BMP_ALIGN_CENTER 0x7FFF 507 508 static void splash_align_axis(int *axis, unsigned long panel_size, 509 unsigned long picture_size) 510 { 511 unsigned long panel_picture_delta = panel_size - picture_size; 512 unsigned long axis_alignment; 513 514 if (*axis == BMP_ALIGN_CENTER) 515 axis_alignment = panel_picture_delta / 2; 516 else if (*axis < 0) 517 axis_alignment = panel_picture_delta + *axis + 1; 518 else 519 return; 520 521 *axis = max(0, (int)axis_alignment); 522 } 523 #endif 524 525 526 #ifdef CONFIG_LCD_BMP_RLE8 527 528 #define BMP_RLE8_ESCAPE 0 529 #define BMP_RLE8_EOL 0 530 #define BMP_RLE8_EOBMP 1 531 #define BMP_RLE8_DELTA 2 532 533 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 534 int cnt) 535 { 536 while (cnt > 0) { 537 *(*fbp)++ = cmap[*bmap++]; 538 cnt--; 539 } 540 } 541 542 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 543 { 544 ushort *fb = *fbp; 545 int cnt_8copy = cnt >> 3; 546 547 cnt -= cnt_8copy << 3; 548 while (cnt_8copy > 0) { 549 *fb++ = c; 550 *fb++ = c; 551 *fb++ = c; 552 *fb++ = c; 553 *fb++ = c; 554 *fb++ = c; 555 *fb++ = c; 556 *fb++ = c; 557 cnt_8copy--; 558 } 559 while (cnt > 0) { 560 *fb++ = c; 561 cnt--; 562 } 563 *fbp = fb; 564 } 565 566 /* 567 * Do not call this function directly, must be called from lcd_display_bitmap. 568 */ 569 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 570 int x_off, int y_off) 571 { 572 uchar *bmap; 573 ulong width, height; 574 ulong cnt, runlen; 575 int x, y; 576 int decode = 1; 577 578 width = get_unaligned_le32(&bmp->header.width); 579 height = get_unaligned_le32(&bmp->header.height); 580 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 581 582 x = 0; 583 y = height - 1; 584 585 while (decode) { 586 if (bmap[0] == BMP_RLE8_ESCAPE) { 587 switch (bmap[1]) { 588 case BMP_RLE8_EOL: 589 /* end of line */ 590 bmap += 2; 591 x = 0; 592 y--; 593 /* 16bpix, 2-byte per pixel, width should *2 */ 594 fb -= (width * 2 + lcd_line_length); 595 break; 596 case BMP_RLE8_EOBMP: 597 /* end of bitmap */ 598 decode = 0; 599 break; 600 case BMP_RLE8_DELTA: 601 /* delta run */ 602 x += bmap[2]; 603 y -= bmap[3]; 604 /* 16bpix, 2-byte per pixel, x should *2 */ 605 fb = (uchar *) (lcd_base + (y + y_off - 1) 606 * lcd_line_length + (x + x_off) * 2); 607 bmap += 4; 608 break; 609 default: 610 /* unencoded run */ 611 runlen = bmap[1]; 612 bmap += 2; 613 if (y < height) { 614 if (x < width) { 615 if (x + runlen > width) 616 cnt = width - x; 617 else 618 cnt = runlen; 619 draw_unencoded_bitmap( 620 (ushort **)&fb, 621 bmap, cmap, cnt); 622 } 623 x += runlen; 624 } 625 bmap += runlen; 626 if (runlen & 1) 627 bmap++; 628 } 629 } else { 630 /* encoded run */ 631 if (y < height) { 632 runlen = bmap[0]; 633 if (x < width) { 634 /* aggregate the same code */ 635 while (bmap[0] == 0xff && 636 bmap[2] != BMP_RLE8_ESCAPE && 637 bmap[1] == bmap[3]) { 638 runlen += bmap[2]; 639 bmap += 2; 640 } 641 if (x + runlen > width) 642 cnt = width - x; 643 else 644 cnt = runlen; 645 draw_encoded_bitmap((ushort **)&fb, 646 cmap[bmap[1]], cnt); 647 } 648 x += runlen; 649 } 650 bmap += 2; 651 } 652 } 653 } 654 #endif 655 656 #if defined(CONFIG_MPC823) 657 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 658 #else 659 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 660 #endif 661 662 #if defined(CONFIG_BMP_16BPP) 663 #if defined(CONFIG_ATMEL_LCD_BGR555) 664 static inline void fb_put_word(uchar **fb, uchar **from) 665 { 666 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 667 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 668 *from += 2; 669 } 670 #else 671 static inline void fb_put_word(uchar **fb, uchar **from) 672 { 673 *(*fb)++ = *(*from)++; 674 *(*fb)++ = *(*from)++; 675 } 676 #endif 677 #endif /* CONFIG_BMP_16BPP */ 678 679 int lcd_display_bitmap(ulong bmp_image, int x, int y) 680 { 681 ushort *cmap = NULL; 682 ushort *cmap_base = NULL; 683 ushort i, j; 684 uchar *fb; 685 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 686 uchar *bmap; 687 ushort padded_width; 688 unsigned long width, height, byte_width; 689 unsigned long pwidth = panel_info.vl_col; 690 unsigned colors, bpix, bmp_bpix; 691 692 if (!bmp || !(bmp->header.signature[0] == 'B' && 693 bmp->header.signature[1] == 'M')) { 694 printf("Error: no valid bmp image at %lx\n", bmp_image); 695 696 return 1; 697 } 698 699 width = get_unaligned_le32(&bmp->header.width); 700 height = get_unaligned_le32(&bmp->header.height); 701 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 702 703 colors = 1 << bmp_bpix; 704 705 bpix = NBITS(panel_info.vl_bpix); 706 707 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 708 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 709 bpix, bmp_bpix); 710 711 return 1; 712 } 713 714 /* 715 * We support displaying 8bpp BMPs on 16bpp LCDs 716 * and displaying 24bpp BMPs on 32bpp LCDs 717 * */ 718 if (bpix != bmp_bpix && 719 !(bmp_bpix == 8 && bpix == 16) && 720 !(bmp_bpix == 24 && bpix == 32)) { 721 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 722 bpix, get_unaligned_le16(&bmp->header.bit_count)); 723 return 1; 724 } 725 726 debug("Display-bmp: %d x %d with %d colors\n", 727 (int)width, (int)height, (int)colors); 728 729 if (bmp_bpix == 8) { 730 cmap = configuration_get_cmap(); 731 cmap_base = cmap; 732 733 /* Set color map */ 734 for (i = 0; i < colors; ++i) { 735 bmp_color_table_entry_t cte = bmp->color_table[i]; 736 #if !defined(CONFIG_ATMEL_LCD) 737 ushort colreg = 738 ( ((cte.red) << 8) & 0xf800) | 739 ( ((cte.green) << 3) & 0x07e0) | 740 ( ((cte.blue) >> 3) & 0x001f) ; 741 *cmap = colreg; 742 #if defined(CONFIG_MPC823) 743 cmap--; 744 #else 745 cmap++; 746 #endif 747 #else /* CONFIG_ATMEL_LCD */ 748 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 749 #endif 750 } 751 } 752 753 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 754 755 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 756 splash_align_axis(&x, pwidth, width); 757 splash_align_axis(&y, panel_info.vl_row, height); 758 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 759 760 if ((x + width) > pwidth) 761 width = pwidth - x; 762 if ((y + height) > panel_info.vl_row) 763 height = panel_info.vl_row - y; 764 765 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 766 fb = (uchar *)(lcd_base + 767 (y + height - 1) * lcd_line_length + x * bpix / 8); 768 769 switch (bmp_bpix) { 770 case 1: /* pass through */ 771 case 8: { 772 #ifdef CONFIG_LCD_BMP_RLE8 773 u32 compression = get_unaligned_le32(&bmp->header.compression); 774 if (compression == BMP_BI_RLE8) { 775 if (bpix != 16) { 776 /* TODO implement render code for bpix != 16 */ 777 printf("Error: only support 16 bpix"); 778 return 1; 779 } 780 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 781 break; 782 } 783 #endif 784 785 if (bpix != 16) 786 byte_width = width; 787 else 788 byte_width = width * 2; 789 790 for (i = 0; i < height; ++i) { 791 WATCHDOG_RESET(); 792 for (j = 0; j < width; j++) { 793 if (bpix != 16) { 794 FB_PUT_BYTE(fb, bmap); 795 } else { 796 *(uint16_t *)fb = cmap_base[*(bmap++)]; 797 fb += sizeof(uint16_t) / sizeof(*fb); 798 } 799 } 800 bmap += (padded_width - width); 801 fb -= byte_width + lcd_line_length; 802 } 803 break; 804 } 805 #if defined(CONFIG_BMP_16BPP) 806 case 16: 807 for (i = 0; i < height; ++i) { 808 WATCHDOG_RESET(); 809 for (j = 0; j < width; j++) 810 fb_put_word(&fb, &bmap); 811 812 bmap += (padded_width - width) * 2; 813 fb -= width * 2 + lcd_line_length; 814 } 815 break; 816 #endif /* CONFIG_BMP_16BPP */ 817 #if defined(CONFIG_BMP_24BMP) 818 case 24: 819 for (i = 0; i < height; ++i) { 820 for (j = 0; j < width; j++) { 821 *(fb++) = *(bmap++); 822 *(fb++) = *(bmap++); 823 *(fb++) = *(bmap++); 824 *(fb++) = 0; 825 } 826 fb -= lcd_line_length + width * (bpix / 8); 827 } 828 break; 829 #endif /* CONFIG_BMP_24BMP */ 830 #if defined(CONFIG_BMP_32BPP) 831 case 32: 832 for (i = 0; i < height; ++i) { 833 for (j = 0; j < width; j++) { 834 *(fb++) = *(bmap++); 835 *(fb++) = *(bmap++); 836 *(fb++) = *(bmap++); 837 *(fb++) = *(bmap++); 838 } 839 fb -= lcd_line_length + width * (bpix / 8); 840 } 841 break; 842 #endif /* CONFIG_BMP_32BPP */ 843 default: 844 break; 845 }; 846 847 lcd_sync(); 848 return 0; 849 } 850 #endif 851 852 static void *lcd_logo(void) 853 { 854 #ifdef CONFIG_SPLASH_SCREEN 855 char *s; 856 ulong addr; 857 static int do_splash = 1; 858 859 if (do_splash && (s = getenv("splashimage")) != NULL) { 860 int x = 0, y = 0; 861 do_splash = 0; 862 863 if (splash_screen_prepare()) 864 return (void *)lcd_base; 865 866 addr = simple_strtoul (s, NULL, 16); 867 868 splash_get_pos(&x, &y); 869 870 if (bmp_display(addr, x, y) == 0) 871 return (void *)lcd_base; 872 } 873 #endif /* CONFIG_SPLASH_SCREEN */ 874 875 bitmap_plot(0, 0); 876 877 #ifdef CONFIG_LCD_INFO 878 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 879 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 880 lcd_show_board_info(); 881 #endif /* CONFIG_LCD_INFO */ 882 883 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 884 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 885 #else 886 return (void *)lcd_base; 887 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 888 } 889 890 #ifdef CONFIG_SPLASHIMAGE_GUARD 891 static int on_splashimage(const char *name, const char *value, enum env_op op, 892 int flags) 893 { 894 ulong addr; 895 int aligned; 896 897 if (op == env_op_delete) 898 return 0; 899 900 addr = simple_strtoul(value, NULL, 16); 901 /* See README.displaying-bmps */ 902 aligned = (addr % 4 == 2); 903 if (!aligned) { 904 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 905 return -1; 906 } 907 908 return 0; 909 } 910 911 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 912 #endif 913 914 int lcd_get_pixel_width(void) 915 { 916 return panel_info.vl_col; 917 } 918 919 int lcd_get_pixel_height(void) 920 { 921 return panel_info.vl_row; 922 } 923 924 #if defined(CONFIG_LCD_DT_SIMPLEFB) 925 static int lcd_dt_simplefb_configure_node(void *blob, int off) 926 { 927 #if LCD_BPP == LCD_COLOR16 928 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 929 panel_info.vl_col, panel_info.vl_row, 930 panel_info.vl_col * 2, "r5g6b5"); 931 #else 932 return -1; 933 #endif 934 } 935 936 int lcd_dt_simplefb_add_node(void *blob) 937 { 938 static const char compat[] = "simple-framebuffer"; 939 static const char disabled[] = "disabled"; 940 int off, ret; 941 942 off = fdt_add_subnode(blob, 0, "framebuffer"); 943 if (off < 0) 944 return -1; 945 946 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 947 if (ret < 0) 948 return -1; 949 950 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 951 if (ret < 0) 952 return -1; 953 954 return lcd_dt_simplefb_configure_node(blob, off); 955 } 956 957 int lcd_dt_simplefb_enable_existing_node(void *blob) 958 { 959 int off; 960 961 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 962 if (off < 0) 963 return -1; 964 965 return lcd_dt_simplefb_configure_node(blob, off); 966 } 967 #endif 968