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 static inline ushort *configuration_get_cmap(void) 387 { 388 #if defined CONFIG_CPU_PXA 389 struct pxafb_info *fbi = &panel_info.pxa; 390 return (ushort *)fbi->palette; 391 #elif defined(CONFIG_MPC823) 392 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 393 cpm8xx_t *cp = &(immr->im_cpm); 394 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 395 #elif defined(CONFIG_ATMEL_LCD) 396 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 397 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 398 return panel_info.cmap; 399 #elif defined(CONFIG_LCD_LOGO) 400 return bmp_logo_palette; 401 #else 402 return NULL; 403 #endif 404 } 405 406 #ifdef CONFIG_LCD_LOGO 407 void bitmap_plot(int x, int y) 408 { 409 #ifdef CONFIG_ATMEL_LCD 410 uint *cmap = (uint *)bmp_logo_palette; 411 #else 412 ushort *cmap = (ushort *)bmp_logo_palette; 413 #endif 414 ushort i, j; 415 uchar *bmap; 416 uchar *fb; 417 ushort *fb16; 418 #if defined(CONFIG_MPC823) 419 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 420 cpm8xx_t *cp = &(immr->im_cpm); 421 #endif 422 unsigned bpix = NBITS(panel_info.vl_bpix); 423 424 debug("Logo: width %d height %d colors %d cmap %d\n", 425 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 426 ARRAY_SIZE(bmp_logo_palette)); 427 428 bmap = &bmp_logo_bitmap[0]; 429 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 430 431 if (bpix < 12) { 432 /* Leave room for default color map 433 * default case: generic system with no cmap (most likely 16bpp) 434 * cmap was set to the source palette, so no change is done. 435 * This avoids even more ifdefs in the next stanza 436 */ 437 #if defined(CONFIG_MPC823) 438 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 439 #elif defined(CONFIG_ATMEL_LCD) 440 cmap = (uint *)configuration_get_cmap(); 441 #else 442 cmap = configuration_get_cmap(); 443 #endif 444 445 WATCHDOG_RESET(); 446 447 /* Set color map */ 448 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 449 ushort colreg = bmp_logo_palette[i]; 450 #ifdef CONFIG_ATMEL_LCD 451 uint lut_entry; 452 #ifdef CONFIG_ATMEL_LCD_BGR555 453 lut_entry = ((colreg & 0x000F) << 11) | 454 ((colreg & 0x00F0) << 2) | 455 ((colreg & 0x0F00) >> 7); 456 #else /* CONFIG_ATMEL_LCD_RGB565 */ 457 lut_entry = ((colreg & 0x000F) << 1) | 458 ((colreg & 0x00F0) << 3) | 459 ((colreg & 0x0F00) << 4); 460 #endif 461 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 462 cmap++; 463 #else /* !CONFIG_ATMEL_LCD */ 464 *cmap++ = colreg; 465 #endif /* CONFIG_ATMEL_LCD */ 466 } 467 468 WATCHDOG_RESET(); 469 470 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 471 memcpy(fb, bmap, BMP_LOGO_WIDTH); 472 bmap += BMP_LOGO_WIDTH; 473 fb += panel_info.vl_col; 474 } 475 } 476 else { /* true color mode */ 477 u16 col16; 478 fb16 = (ushort *)fb; 479 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 480 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 481 col16 = bmp_logo_palette[(bmap[j]-16)]; 482 fb16[j] = 483 ((col16 & 0x000F) << 1) | 484 ((col16 & 0x00F0) << 3) | 485 ((col16 & 0x0F00) << 4); 486 } 487 bmap += BMP_LOGO_WIDTH; 488 fb16 += panel_info.vl_col; 489 } 490 } 491 492 WATCHDOG_RESET(); 493 lcd_sync(); 494 } 495 #else 496 static inline void bitmap_plot(int x, int y) {} 497 #endif /* CONFIG_LCD_LOGO */ 498 499 /*----------------------------------------------------------------------*/ 500 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 501 /* 502 * Display the BMP file located at address bmp_image. 503 * Only uncompressed. 504 */ 505 506 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 507 #define BMP_ALIGN_CENTER 0x7FFF 508 509 static void splash_align_axis(int *axis, unsigned long panel_size, 510 unsigned long picture_size) 511 { 512 unsigned long panel_picture_delta = panel_size - picture_size; 513 unsigned long axis_alignment; 514 515 if (*axis == BMP_ALIGN_CENTER) 516 axis_alignment = panel_picture_delta / 2; 517 else if (*axis < 0) 518 axis_alignment = panel_picture_delta + *axis + 1; 519 else 520 return; 521 522 *axis = max(0, (int)axis_alignment); 523 } 524 #endif 525 526 527 #ifdef CONFIG_LCD_BMP_RLE8 528 529 #define BMP_RLE8_ESCAPE 0 530 #define BMP_RLE8_EOL 0 531 #define BMP_RLE8_EOBMP 1 532 #define BMP_RLE8_DELTA 2 533 534 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 535 int cnt) 536 { 537 while (cnt > 0) { 538 *(*fbp)++ = cmap[*bmap++]; 539 cnt--; 540 } 541 } 542 543 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 544 { 545 ushort *fb = *fbp; 546 int cnt_8copy = cnt >> 3; 547 548 cnt -= cnt_8copy << 3; 549 while (cnt_8copy > 0) { 550 *fb++ = c; 551 *fb++ = c; 552 *fb++ = c; 553 *fb++ = c; 554 *fb++ = c; 555 *fb++ = c; 556 *fb++ = c; 557 *fb++ = c; 558 cnt_8copy--; 559 } 560 while (cnt > 0) { 561 *fb++ = c; 562 cnt--; 563 } 564 *fbp = fb; 565 } 566 567 /* 568 * Do not call this function directly, must be called from lcd_display_bitmap. 569 */ 570 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 571 int x_off, int y_off) 572 { 573 uchar *bmap; 574 ulong width, height; 575 ulong cnt, runlen; 576 int x, y; 577 int decode = 1; 578 579 width = get_unaligned_le32(&bmp->header.width); 580 height = get_unaligned_le32(&bmp->header.height); 581 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 582 583 x = 0; 584 y = height - 1; 585 586 while (decode) { 587 if (bmap[0] == BMP_RLE8_ESCAPE) { 588 switch (bmap[1]) { 589 case BMP_RLE8_EOL: 590 /* end of line */ 591 bmap += 2; 592 x = 0; 593 y--; 594 /* 16bpix, 2-byte per pixel, width should *2 */ 595 fb -= (width * 2 + lcd_line_length); 596 break; 597 case BMP_RLE8_EOBMP: 598 /* end of bitmap */ 599 decode = 0; 600 break; 601 case BMP_RLE8_DELTA: 602 /* delta run */ 603 x += bmap[2]; 604 y -= bmap[3]; 605 /* 16bpix, 2-byte per pixel, x should *2 */ 606 fb = (uchar *) (lcd_base + (y + y_off - 1) 607 * lcd_line_length + (x + x_off) * 2); 608 bmap += 4; 609 break; 610 default: 611 /* unencoded run */ 612 runlen = bmap[1]; 613 bmap += 2; 614 if (y < height) { 615 if (x < width) { 616 if (x + runlen > width) 617 cnt = width - x; 618 else 619 cnt = runlen; 620 draw_unencoded_bitmap( 621 (ushort **)&fb, 622 bmap, cmap, cnt); 623 } 624 x += runlen; 625 } 626 bmap += runlen; 627 if (runlen & 1) 628 bmap++; 629 } 630 } else { 631 /* encoded run */ 632 if (y < height) { 633 runlen = bmap[0]; 634 if (x < width) { 635 /* aggregate the same code */ 636 while (bmap[0] == 0xff && 637 bmap[2] != BMP_RLE8_ESCAPE && 638 bmap[1] == bmap[3]) { 639 runlen += bmap[2]; 640 bmap += 2; 641 } 642 if (x + runlen > width) 643 cnt = width - x; 644 else 645 cnt = runlen; 646 draw_encoded_bitmap((ushort **)&fb, 647 cmap[bmap[1]], cnt); 648 } 649 x += runlen; 650 } 651 bmap += 2; 652 } 653 } 654 } 655 #endif 656 657 #if defined(CONFIG_MPC823) 658 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 659 #else 660 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 661 #endif 662 663 #if defined(CONFIG_BMP_16BPP) 664 #if defined(CONFIG_ATMEL_LCD_BGR555) 665 static inline void fb_put_word(uchar **fb, uchar **from) 666 { 667 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 668 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 669 *from += 2; 670 } 671 #else 672 static inline void fb_put_word(uchar **fb, uchar **from) 673 { 674 *(*fb)++ = *(*from)++; 675 *(*fb)++ = *(*from)++; 676 } 677 #endif 678 #endif /* CONFIG_BMP_16BPP */ 679 680 int lcd_display_bitmap(ulong bmp_image, int x, int y) 681 { 682 ushort *cmap = NULL; 683 ushort *cmap_base = NULL; 684 ushort i, j; 685 uchar *fb; 686 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 687 uchar *bmap; 688 ushort padded_width; 689 unsigned long width, height, byte_width; 690 unsigned long pwidth = panel_info.vl_col; 691 unsigned colors, bpix, bmp_bpix; 692 693 if (!bmp || !(bmp->header.signature[0] == 'B' && 694 bmp->header.signature[1] == 'M')) { 695 printf("Error: no valid bmp image at %lx\n", bmp_image); 696 697 return 1; 698 } 699 700 width = get_unaligned_le32(&bmp->header.width); 701 height = get_unaligned_le32(&bmp->header.height); 702 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 703 704 colors = 1 << bmp_bpix; 705 706 bpix = NBITS(panel_info.vl_bpix); 707 708 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 709 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 710 bpix, bmp_bpix); 711 712 return 1; 713 } 714 715 /* 716 * We support displaying 8bpp BMPs on 16bpp LCDs 717 * and displaying 24bpp BMPs on 32bpp LCDs 718 * */ 719 if (bpix != bmp_bpix && 720 !(bmp_bpix == 8 && bpix == 16) && 721 !(bmp_bpix == 24 && bpix == 32)) { 722 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 723 bpix, get_unaligned_le16(&bmp->header.bit_count)); 724 return 1; 725 } 726 727 debug("Display-bmp: %d x %d with %d colors\n", 728 (int)width, (int)height, (int)colors); 729 730 if (bmp_bpix == 8) { 731 cmap = configuration_get_cmap(); 732 cmap_base = cmap; 733 734 /* Set color map */ 735 for (i = 0; i < colors; ++i) { 736 bmp_color_table_entry_t cte = bmp->color_table[i]; 737 #if !defined(CONFIG_ATMEL_LCD) 738 ushort colreg = 739 ( ((cte.red) << 8) & 0xf800) | 740 ( ((cte.green) << 3) & 0x07e0) | 741 ( ((cte.blue) >> 3) & 0x001f) ; 742 *cmap = colreg; 743 #if defined(CONFIG_MPC823) 744 cmap--; 745 #else 746 cmap++; 747 #endif 748 #else /* CONFIG_ATMEL_LCD */ 749 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 750 #endif 751 } 752 } 753 754 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 755 756 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 757 splash_align_axis(&x, pwidth, width); 758 splash_align_axis(&y, panel_info.vl_row, height); 759 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 760 761 if ((x + width) > pwidth) 762 width = pwidth - x; 763 if ((y + height) > panel_info.vl_row) 764 height = panel_info.vl_row - y; 765 766 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 767 fb = (uchar *)(lcd_base + 768 (y + height - 1) * lcd_line_length + x * bpix / 8); 769 770 switch (bmp_bpix) { 771 case 1: /* pass through */ 772 case 8: { 773 #ifdef CONFIG_LCD_BMP_RLE8 774 u32 compression = get_unaligned_le32(&bmp->header.compression); 775 if (compression == BMP_BI_RLE8) { 776 if (bpix != 16) { 777 /* TODO implement render code for bpix != 16 */ 778 printf("Error: only support 16 bpix"); 779 return 1; 780 } 781 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 782 break; 783 } 784 #endif 785 786 if (bpix != 16) 787 byte_width = width; 788 else 789 byte_width = width * 2; 790 791 for (i = 0; i < height; ++i) { 792 WATCHDOG_RESET(); 793 for (j = 0; j < width; j++) { 794 if (bpix != 16) { 795 FB_PUT_BYTE(fb, bmap); 796 } else { 797 *(uint16_t *)fb = cmap_base[*(bmap++)]; 798 fb += sizeof(uint16_t) / sizeof(*fb); 799 } 800 } 801 bmap += (padded_width - width); 802 fb -= byte_width + lcd_line_length; 803 } 804 break; 805 } 806 #if defined(CONFIG_BMP_16BPP) 807 case 16: 808 for (i = 0; i < height; ++i) { 809 WATCHDOG_RESET(); 810 for (j = 0; j < width; j++) 811 fb_put_word(&fb, &bmap); 812 813 bmap += (padded_width - width) * 2; 814 fb -= width * 2 + lcd_line_length; 815 } 816 break; 817 #endif /* CONFIG_BMP_16BPP */ 818 #if defined(CONFIG_BMP_24BMP) 819 case 24: 820 for (i = 0; i < height; ++i) { 821 for (j = 0; j < width; j++) { 822 *(fb++) = *(bmap++); 823 *(fb++) = *(bmap++); 824 *(fb++) = *(bmap++); 825 *(fb++) = 0; 826 } 827 fb -= lcd_line_length + width * (bpix / 8); 828 } 829 break; 830 #endif /* CONFIG_BMP_24BMP */ 831 #if defined(CONFIG_BMP_32BPP) 832 case 32: 833 for (i = 0; i < height; ++i) { 834 for (j = 0; j < width; j++) { 835 *(fb++) = *(bmap++); 836 *(fb++) = *(bmap++); 837 *(fb++) = *(bmap++); 838 *(fb++) = *(bmap++); 839 } 840 fb -= lcd_line_length + width * (bpix / 8); 841 } 842 break; 843 #endif /* CONFIG_BMP_32BPP */ 844 default: 845 break; 846 }; 847 848 lcd_sync(); 849 return 0; 850 } 851 #endif 852 853 static void *lcd_logo(void) 854 { 855 #ifdef CONFIG_SPLASH_SCREEN 856 char *s; 857 ulong addr; 858 static int do_splash = 1; 859 860 if (do_splash && (s = getenv("splashimage")) != NULL) { 861 int x = 0, y = 0; 862 do_splash = 0; 863 864 if (splash_screen_prepare()) 865 return (void *)lcd_base; 866 867 addr = simple_strtoul (s, NULL, 16); 868 869 splash_get_pos(&x, &y); 870 871 if (bmp_display(addr, x, y) == 0) 872 return (void *)lcd_base; 873 } 874 #endif /* CONFIG_SPLASH_SCREEN */ 875 876 bitmap_plot(0, 0); 877 878 #ifdef CONFIG_LCD_INFO 879 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 880 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 881 lcd_show_board_info(); 882 #endif /* CONFIG_LCD_INFO */ 883 884 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 885 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 886 #else 887 return (void *)lcd_base; 888 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 889 } 890 891 #ifdef CONFIG_SPLASHIMAGE_GUARD 892 static int on_splashimage(const char *name, const char *value, enum env_op op, 893 int flags) 894 { 895 ulong addr; 896 int aligned; 897 898 if (op == env_op_delete) 899 return 0; 900 901 addr = simple_strtoul(value, NULL, 16); 902 /* See README.displaying-bmps */ 903 aligned = (addr % 4 == 2); 904 if (!aligned) { 905 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 906 return -1; 907 } 908 909 return 0; 910 } 911 912 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 913 #endif 914 915 int lcd_get_pixel_width(void) 916 { 917 return panel_info.vl_col; 918 } 919 920 int lcd_get_pixel_height(void) 921 { 922 return panel_info.vl_row; 923 } 924 925 #if defined(CONFIG_LCD_DT_SIMPLEFB) 926 static int lcd_dt_simplefb_configure_node(void *blob, int off) 927 { 928 #if LCD_BPP == LCD_COLOR16 929 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 930 panel_info.vl_col, panel_info.vl_row, 931 panel_info.vl_col * 2, "r5g6b5"); 932 #else 933 return -1; 934 #endif 935 } 936 937 int lcd_dt_simplefb_add_node(void *blob) 938 { 939 static const char compat[] = "simple-framebuffer"; 940 static const char disabled[] = "disabled"; 941 int off, ret; 942 943 off = fdt_add_subnode(blob, 0, "framebuffer"); 944 if (off < 0) 945 return -1; 946 947 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 948 if (ret < 0) 949 return -1; 950 951 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 952 if (ret < 0) 953 return -1; 954 955 return lcd_dt_simplefb_configure_node(blob, off); 956 } 957 958 int lcd_dt_simplefb_enable_existing_node(void *blob) 959 { 960 int off; 961 962 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 963 if (off < 0) 964 return -1; 965 966 return lcd_dt_simplefb_configure_node(blob, off); 967 } 968 #endif 969