1 /* 2 * Common LCD routines 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 /* #define DEBUG */ 11 #include <config.h> 12 #include <common.h> 13 #include <command.h> 14 #include <env_callback.h> 15 #include <linux/types.h> 16 #include <stdio_dev.h> 17 #include <lcd.h> 18 #include <watchdog.h> 19 #include <asm/unaligned.h> 20 #include <splash.h> 21 #include <asm/io.h> 22 #include <asm/unaligned.h> 23 #include <fdt_support.h> 24 #include <video_font.h> 25 26 #if defined(CONFIG_LCD_DT_SIMPLEFB) 27 #include <libfdt.h> 28 #endif 29 30 #ifdef CONFIG_LCD_LOGO 31 #include <bmp_logo.h> 32 #include <bmp_logo_data.h> 33 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 34 #error Default Color Map overlaps with Logo Color Map 35 #endif 36 #endif 37 38 #ifdef CONFIG_SANDBOX 39 #include <asm/sdl.h> 40 #endif 41 42 #ifndef CONFIG_LCD_ALIGNMENT 43 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 44 #endif 45 46 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \ 47 (LCD_BPP != LCD_COLOR32) 48 #error Unsupported LCD BPP. 49 #endif 50 51 DECLARE_GLOBAL_DATA_PTR; 52 53 static int lcd_init(void *lcdbase); 54 static void *lcd_logo(void); 55 static void lcd_setfgcolor(int color); 56 static void lcd_setbgcolor(int color); 57 58 static int lcd_color_fg; 59 static int lcd_color_bg; 60 int lcd_line_length; 61 char lcd_is_enabled = 0; 62 static void *lcd_base; /* Start of framebuffer memory */ 63 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 64 65 /* Flush LCD activity to the caches */ 66 void lcd_sync(void) 67 { 68 /* 69 * flush_dcache_range() is declared in common.h but it seems that some 70 * architectures do not actually implement it. Is there a way to find 71 * out whether it exists? For now, ARM is safe. 72 */ 73 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 74 int line_length; 75 76 if (lcd_flush_dcache) 77 flush_dcache_range((u32)lcd_base, 78 (u32)(lcd_base + lcd_get_size(&line_length))); 79 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 80 static ulong last_sync; 81 82 if (get_timer(last_sync) > 10) { 83 sandbox_sdl_sync(lcd_base); 84 last_sync = get_timer(0); 85 } 86 #endif 87 } 88 89 void lcd_set_flush_dcache(int flush) 90 { 91 lcd_flush_dcache = (flush != 0); 92 } 93 94 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 95 { 96 lcd_putc(c); 97 } 98 99 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 100 { 101 lcd_puts(s); 102 } 103 104 /* Small utility to check that you got the colours right */ 105 #ifdef LCD_TEST_PATTERN 106 107 #define N_BLK_VERT 2 108 #define N_BLK_HOR 3 109 110 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 111 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 112 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 113 }; 114 115 static void test_pattern(void) 116 { 117 ushort v_max = panel_info.vl_row; 118 ushort h_max = panel_info.vl_col; 119 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 120 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 121 ushort v, h; 122 uchar *pix = (uchar *)lcd_base; 123 124 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 125 h_max, v_max, h_step, v_step); 126 127 /* WARNING: Code silently assumes 8bit/pixel */ 128 for (v = 0; v < v_max; ++v) { 129 uchar iy = v / v_step; 130 for (h = 0; h < h_max; ++h) { 131 uchar ix = N_BLK_HOR * iy + h / h_step; 132 *pix++ = test_colors[ix]; 133 } 134 } 135 } 136 #endif /* LCD_TEST_PATTERN */ 137 138 /* 139 * With most lcd drivers the line length is set up 140 * by calculating it from panel_info parameters. Some 141 * drivers need to calculate the line length differently, 142 * so make the function weak to allow overriding it. 143 */ 144 __weak int lcd_get_size(int *line_length) 145 { 146 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 147 return *line_length * panel_info.vl_row; 148 } 149 150 int drv_lcd_init(void) 151 { 152 struct stdio_dev lcddev; 153 int rc; 154 155 lcd_base = map_sysmem(gd->fb_base, 0); 156 157 lcd_init(lcd_base); 158 159 /* Device initialization */ 160 memset(&lcddev, 0, sizeof(lcddev)); 161 162 strcpy(lcddev.name, "lcd"); 163 lcddev.ext = 0; /* No extensions */ 164 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 165 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 166 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 167 168 rc = stdio_register(&lcddev); 169 170 return (rc == 0) ? 1 : rc; 171 } 172 173 void lcd_clear(void) 174 { 175 short console_rows, console_cols; 176 int bg_color; 177 #if LCD_BPP == LCD_COLOR8 178 /* Setting the palette */ 179 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 180 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 181 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 182 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 183 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 184 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 185 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 186 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 187 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 188 #endif 189 190 #ifndef CONFIG_SYS_WHITE_ON_BLACK 191 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 192 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 193 bg_color = CONSOLE_COLOR_WHITE; 194 #else 195 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 196 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 197 bg_color = CONSOLE_COLOR_BLACK; 198 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 199 200 #ifdef LCD_TEST_PATTERN 201 test_pattern(); 202 #else 203 /* set framebuffer to background color */ 204 #if (LCD_BPP != LCD_COLOR32) 205 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row); 206 #else 207 u32 *ppix = lcd_base; 208 u32 i; 209 for (i = 0; 210 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 211 i++) { 212 *ppix++ = bg_color; 213 } 214 #endif 215 #endif 216 /* Paint the logo and retrieve LCD base address */ 217 debug("[LCD] Drawing the logo...\n"); 218 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 219 console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT); 220 console_rows /= VIDEO_FONT_HEIGHT; 221 #else 222 console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT; 223 #endif 224 console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH; 225 lcd_init_console(lcd_base, console_rows, console_cols); 226 lcd_init_console(lcd_logo(), console_rows, console_cols); 227 lcd_sync(); 228 } 229 230 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 231 char *const argv[]) 232 { 233 lcd_clear(); 234 return 0; 235 } 236 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", ""); 237 238 static int lcd_init(void *lcdbase) 239 { 240 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 241 lcd_ctrl_init(lcdbase); 242 243 /* 244 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 245 * the 'lcdbase' argument and uses custom lcd base address 246 * by setting up gd->fb_base. Check for this condition and fixup 247 * 'lcd_base' address. 248 */ 249 if (map_to_sysmem(lcdbase) != gd->fb_base) 250 lcd_base = map_sysmem(gd->fb_base, 0); 251 252 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 253 254 lcd_get_size(&lcd_line_length); 255 lcd_is_enabled = 1; 256 lcd_clear(); 257 lcd_enable(); 258 259 /* Initialize the console */ 260 lcd_set_col(0); 261 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 262 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 263 #else 264 lcd_set_row(1); /* leave 1 blank line below logo */ 265 #endif 266 267 return 0; 268 } 269 270 /* 271 * This is called early in the system initialization to grab memory 272 * for the LCD controller. 273 * Returns new address for monitor, after reserving LCD buffer memory 274 * 275 * Note that this is running from ROM, so no write access to global data. 276 */ 277 ulong lcd_setmem(ulong addr) 278 { 279 ulong size; 280 int line_length; 281 282 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 283 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 284 285 size = lcd_get_size(&line_length); 286 287 /* Round up to nearest full page, or MMU section if defined */ 288 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 289 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 290 291 /* Allocate pages for the frame buffer. */ 292 addr -= size; 293 294 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 295 size >> 10, addr); 296 297 return addr; 298 } 299 300 static void lcd_setfgcolor(int color) 301 { 302 lcd_color_fg = color; 303 } 304 305 int lcd_getfgcolor(void) 306 { 307 return lcd_color_fg; 308 } 309 310 static void lcd_setbgcolor(int color) 311 { 312 lcd_color_bg = color; 313 } 314 315 int lcd_getbgcolor(void) 316 { 317 return lcd_color_bg; 318 } 319 320 #ifdef CONFIG_LCD_LOGO 321 __weak void lcd_logo_set_cmap(void) 322 { 323 int i; 324 ushort *cmap = configuration_get_cmap(); 325 326 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) 327 *cmap++ = bmp_logo_palette[i]; 328 } 329 330 void bitmap_plot(int x, int y) 331 { 332 ushort i, j; 333 uchar *bmap = &bmp_logo_bitmap[0]; 334 unsigned bpix = NBITS(panel_info.vl_bpix); 335 uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 336 ushort *fb16; 337 338 debug("Logo: width %d height %d colors %d\n", 339 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS); 340 341 if (bpix < 12) { 342 WATCHDOG_RESET(); 343 lcd_logo_set_cmap(); 344 WATCHDOG_RESET(); 345 346 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 347 memcpy(fb, bmap, BMP_LOGO_WIDTH); 348 bmap += BMP_LOGO_WIDTH; 349 fb += panel_info.vl_col; 350 } 351 } 352 else { /* true color mode */ 353 u16 col16; 354 fb16 = (ushort *)fb; 355 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 356 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 357 col16 = bmp_logo_palette[(bmap[j]-16)]; 358 fb16[j] = 359 ((col16 & 0x000F) << 1) | 360 ((col16 & 0x00F0) << 3) | 361 ((col16 & 0x0F00) << 4); 362 } 363 bmap += BMP_LOGO_WIDTH; 364 fb16 += panel_info.vl_col; 365 } 366 } 367 368 WATCHDOG_RESET(); 369 lcd_sync(); 370 } 371 #else 372 static inline void bitmap_plot(int x, int y) {} 373 #endif /* CONFIG_LCD_LOGO */ 374 375 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 376 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 377 #define BMP_ALIGN_CENTER 0x7FFF 378 379 static void splash_align_axis(int *axis, unsigned long panel_size, 380 unsigned long picture_size) 381 { 382 unsigned long panel_picture_delta = panel_size - picture_size; 383 unsigned long axis_alignment; 384 385 if (*axis == BMP_ALIGN_CENTER) 386 axis_alignment = panel_picture_delta / 2; 387 else if (*axis < 0) 388 axis_alignment = panel_picture_delta + *axis + 1; 389 else 390 return; 391 392 *axis = max(0, (int)axis_alignment); 393 } 394 #endif 395 396 #ifdef CONFIG_LCD_BMP_RLE8 397 #define BMP_RLE8_ESCAPE 0 398 #define BMP_RLE8_EOL 0 399 #define BMP_RLE8_EOBMP 1 400 #define BMP_RLE8_DELTA 2 401 402 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 403 int cnt) 404 { 405 while (cnt > 0) { 406 *(*fbp)++ = cmap[*bmap++]; 407 cnt--; 408 } 409 } 410 411 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 412 { 413 ushort *fb = *fbp; 414 int cnt_8copy = cnt >> 3; 415 416 cnt -= cnt_8copy << 3; 417 while (cnt_8copy > 0) { 418 *fb++ = c; 419 *fb++ = c; 420 *fb++ = c; 421 *fb++ = c; 422 *fb++ = c; 423 *fb++ = c; 424 *fb++ = c; 425 *fb++ = c; 426 cnt_8copy--; 427 } 428 while (cnt > 0) { 429 *fb++ = c; 430 cnt--; 431 } 432 *fbp = fb; 433 } 434 435 /* 436 * Do not call this function directly, must be called from lcd_display_bitmap. 437 */ 438 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 439 int x_off, int y_off) 440 { 441 uchar *bmap; 442 ulong width, height; 443 ulong cnt, runlen; 444 int x, y; 445 int decode = 1; 446 447 width = get_unaligned_le32(&bmp->header.width); 448 height = get_unaligned_le32(&bmp->header.height); 449 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 450 451 x = 0; 452 y = height - 1; 453 454 while (decode) { 455 if (bmap[0] == BMP_RLE8_ESCAPE) { 456 switch (bmap[1]) { 457 case BMP_RLE8_EOL: 458 /* end of line */ 459 bmap += 2; 460 x = 0; 461 y--; 462 /* 16bpix, 2-byte per pixel, width should *2 */ 463 fb -= (width * 2 + lcd_line_length); 464 break; 465 case BMP_RLE8_EOBMP: 466 /* end of bitmap */ 467 decode = 0; 468 break; 469 case BMP_RLE8_DELTA: 470 /* delta run */ 471 x += bmap[2]; 472 y -= bmap[3]; 473 /* 16bpix, 2-byte per pixel, x should *2 */ 474 fb = (uchar *) (lcd_base + (y + y_off - 1) 475 * lcd_line_length + (x + x_off) * 2); 476 bmap += 4; 477 break; 478 default: 479 /* unencoded run */ 480 runlen = bmap[1]; 481 bmap += 2; 482 if (y < height) { 483 if (x < width) { 484 if (x + runlen > width) 485 cnt = width - x; 486 else 487 cnt = runlen; 488 draw_unencoded_bitmap( 489 (ushort **)&fb, 490 bmap, cmap, cnt); 491 } 492 x += runlen; 493 } 494 bmap += runlen; 495 if (runlen & 1) 496 bmap++; 497 } 498 } else { 499 /* encoded run */ 500 if (y < height) { 501 runlen = bmap[0]; 502 if (x < width) { 503 /* aggregate the same code */ 504 while (bmap[0] == 0xff && 505 bmap[2] != BMP_RLE8_ESCAPE && 506 bmap[1] == bmap[3]) { 507 runlen += bmap[2]; 508 bmap += 2; 509 } 510 if (x + runlen > width) 511 cnt = width - x; 512 else 513 cnt = runlen; 514 draw_encoded_bitmap((ushort **)&fb, 515 cmap[bmap[1]], cnt); 516 } 517 x += runlen; 518 } 519 bmap += 2; 520 } 521 } 522 } 523 #endif 524 525 __weak void fb_put_byte(uchar **fb, uchar **from) 526 { 527 *(*fb)++ = *(*from)++; 528 } 529 530 #if defined(CONFIG_BMP_16BPP) 531 __weak void fb_put_word(uchar **fb, uchar **from) 532 { 533 *(*fb)++ = *(*from)++; 534 *(*fb)++ = *(*from)++; 535 } 536 #endif /* CONFIG_BMP_16BPP */ 537 538 __weak void lcd_set_cmap(bmp_image_t *bmp, unsigned colors) 539 { 540 int i; 541 bmp_color_table_entry_t cte; 542 ushort *cmap = configuration_get_cmap(); 543 544 for (i = 0; i < colors; ++i) { 545 cte = bmp->color_table[i]; 546 *cmap = (((cte.red) << 8) & 0xf800) | 547 (((cte.green) << 3) & 0x07e0) | 548 (((cte.blue) >> 3) & 0x001f); 549 #if defined(CONFIG_MPC823) 550 cmap--; 551 #else 552 cmap++; 553 #endif 554 } 555 } 556 557 int lcd_display_bitmap(ulong bmp_image, int x, int y) 558 { 559 ushort *cmap_base = NULL; 560 ushort i, j; 561 uchar *fb; 562 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 563 uchar *bmap; 564 ushort padded_width; 565 unsigned long width, height, byte_width; 566 unsigned long pwidth = panel_info.vl_col; 567 unsigned colors, bpix, bmp_bpix; 568 569 if (!bmp || !(bmp->header.signature[0] == 'B' && 570 bmp->header.signature[1] == 'M')) { 571 printf("Error: no valid bmp image at %lx\n", bmp_image); 572 573 return 1; 574 } 575 576 width = get_unaligned_le32(&bmp->header.width); 577 height = get_unaligned_le32(&bmp->header.height); 578 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 579 580 colors = 1 << bmp_bpix; 581 582 bpix = NBITS(panel_info.vl_bpix); 583 584 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 585 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 586 bpix, bmp_bpix); 587 588 return 1; 589 } 590 591 /* 592 * We support displaying 8bpp BMPs on 16bpp LCDs 593 * and displaying 24bpp BMPs on 32bpp LCDs 594 * */ 595 if (bpix != bmp_bpix && 596 !(bmp_bpix == 8 && bpix == 16) && 597 !(bmp_bpix == 24 && bpix == 32)) { 598 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 599 bpix, get_unaligned_le16(&bmp->header.bit_count)); 600 return 1; 601 } 602 603 debug("Display-bmp: %d x %d with %d colors\n", 604 (int)width, (int)height, (int)colors); 605 606 if (bmp_bpix == 8) 607 lcd_set_cmap(bmp, colors); 608 609 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 610 611 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 612 splash_align_axis(&x, pwidth, width); 613 splash_align_axis(&y, panel_info.vl_row, height); 614 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 615 616 if ((x + width) > pwidth) 617 width = pwidth - x; 618 if ((y + height) > panel_info.vl_row) 619 height = panel_info.vl_row - y; 620 621 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 622 fb = (uchar *)(lcd_base + 623 (y + height - 1) * lcd_line_length + x * bpix / 8); 624 625 switch (bmp_bpix) { 626 case 1: 627 case 8: { 628 cmap_base = configuration_get_cmap(); 629 #ifdef CONFIG_LCD_BMP_RLE8 630 u32 compression = get_unaligned_le32(&bmp->header.compression); 631 if (compression == BMP_BI_RLE8) { 632 if (bpix != 16) { 633 /* TODO implement render code for bpix != 16 */ 634 printf("Error: only support 16 bpix"); 635 return 1; 636 } 637 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 638 break; 639 } 640 #endif 641 642 if (bpix != 16) 643 byte_width = width; 644 else 645 byte_width = width * 2; 646 647 for (i = 0; i < height; ++i) { 648 WATCHDOG_RESET(); 649 for (j = 0; j < width; j++) { 650 if (bpix != 16) { 651 fb_put_byte(&fb, &bmap); 652 } else { 653 *(uint16_t *)fb = cmap_base[*(bmap++)]; 654 fb += sizeof(uint16_t) / sizeof(*fb); 655 } 656 } 657 bmap += (padded_width - width); 658 fb -= byte_width + lcd_line_length; 659 } 660 break; 661 } 662 #if defined(CONFIG_BMP_16BPP) 663 case 16: 664 for (i = 0; i < height; ++i) { 665 WATCHDOG_RESET(); 666 for (j = 0; j < width; j++) 667 fb_put_word(&fb, &bmap); 668 669 bmap += (padded_width - width) * 2; 670 fb -= width * 2 + lcd_line_length; 671 } 672 break; 673 #endif /* CONFIG_BMP_16BPP */ 674 #if defined(CONFIG_BMP_24BMP) 675 case 24: 676 for (i = 0; i < height; ++i) { 677 for (j = 0; j < width; j++) { 678 *(fb++) = *(bmap++); 679 *(fb++) = *(bmap++); 680 *(fb++) = *(bmap++); 681 *(fb++) = 0; 682 } 683 fb -= lcd_line_length + width * (bpix / 8); 684 } 685 break; 686 #endif /* CONFIG_BMP_24BMP */ 687 #if defined(CONFIG_BMP_32BPP) 688 case 32: 689 for (i = 0; i < height; ++i) { 690 for (j = 0; j < width; j++) { 691 *(fb++) = *(bmap++); 692 *(fb++) = *(bmap++); 693 *(fb++) = *(bmap++); 694 *(fb++) = *(bmap++); 695 } 696 fb -= lcd_line_length + width * (bpix / 8); 697 } 698 break; 699 #endif /* CONFIG_BMP_32BPP */ 700 default: 701 break; 702 }; 703 704 lcd_sync(); 705 return 0; 706 } 707 #endif 708 709 static void *lcd_logo(void) 710 { 711 #ifdef CONFIG_SPLASH_SCREEN 712 char *s; 713 ulong addr; 714 static int do_splash = 1; 715 716 if (do_splash && (s = getenv("splashimage")) != NULL) { 717 int x = 0, y = 0; 718 do_splash = 0; 719 720 if (splash_screen_prepare()) 721 return (void *)lcd_base; 722 723 addr = simple_strtoul (s, NULL, 16); 724 725 splash_get_pos(&x, &y); 726 727 if (bmp_display(addr, x, y) == 0) 728 return (void *)lcd_base; 729 } 730 #endif /* CONFIG_SPLASH_SCREEN */ 731 732 bitmap_plot(0, 0); 733 734 #ifdef CONFIG_LCD_INFO 735 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 736 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 737 lcd_show_board_info(); 738 #endif /* CONFIG_LCD_INFO */ 739 740 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 741 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 742 #else 743 return (void *)lcd_base; 744 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 745 } 746 747 #ifdef CONFIG_SPLASHIMAGE_GUARD 748 static int on_splashimage(const char *name, const char *value, enum env_op op, 749 int flags) 750 { 751 ulong addr; 752 int aligned; 753 754 if (op == env_op_delete) 755 return 0; 756 757 addr = simple_strtoul(value, NULL, 16); 758 /* See README.displaying-bmps */ 759 aligned = (addr % 4 == 2); 760 if (!aligned) { 761 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 762 return -1; 763 } 764 765 return 0; 766 } 767 768 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 769 #endif 770 771 int lcd_get_pixel_width(void) 772 { 773 return panel_info.vl_col; 774 } 775 776 int lcd_get_pixel_height(void) 777 { 778 return panel_info.vl_row; 779 } 780 781 #if defined(CONFIG_LCD_DT_SIMPLEFB) 782 static int lcd_dt_simplefb_configure_node(void *blob, int off) 783 { 784 #if LCD_BPP == LCD_COLOR16 785 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 786 panel_info.vl_col, panel_info.vl_row, 787 panel_info.vl_col * 2, "r5g6b5"); 788 #else 789 return -1; 790 #endif 791 } 792 793 int lcd_dt_simplefb_add_node(void *blob) 794 { 795 static const char compat[] = "simple-framebuffer"; 796 static const char disabled[] = "disabled"; 797 int off, ret; 798 799 off = fdt_add_subnode(blob, 0, "framebuffer"); 800 if (off < 0) 801 return -1; 802 803 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 804 if (ret < 0) 805 return -1; 806 807 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 808 if (ret < 0) 809 return -1; 810 811 return lcd_dt_simplefb_configure_node(blob, off); 812 } 813 814 int lcd_dt_simplefb_enable_existing_node(void *blob) 815 { 816 int off; 817 818 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 819 if (off < 0) 820 return -1; 821 822 return lcd_dt_simplefb_configure_node(blob, off); 823 } 824 #endif 825