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 /* By default we scroll by a single line */ 77 #ifndef CONFIG_CONSOLE_SCROLL_LINES 78 #define CONFIG_CONSOLE_SCROLL_LINES 1 79 #endif 80 81 /************************************************************************/ 82 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 83 /************************************************************************/ 84 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 85 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 86 / VIDEO_FONT_HEIGHT) 87 #else 88 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 89 #endif 90 91 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 92 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 93 #define CONSOLE_ROW_FIRST lcd_console_address 94 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 95 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 96 - CONSOLE_ROW_SIZE) 97 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 98 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 99 100 #if LCD_BPP == LCD_MONOCHROME 101 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 102 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 103 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || \ 104 (LCD_BPP == LCD_COLOR32) 105 # define COLOR_MASK(c) (c) 106 #else 107 # error Unsupported LCD BPP. 108 #endif 109 110 DECLARE_GLOBAL_DATA_PTR; 111 112 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 113 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 114 115 static int lcd_init(void *lcdbase); 116 117 static void *lcd_logo(void); 118 119 static void lcd_setfgcolor(int color); 120 static void lcd_setbgcolor(int color); 121 122 static int lcd_color_fg; 123 static int lcd_color_bg; 124 int lcd_line_length; 125 126 char lcd_is_enabled = 0; 127 128 static short console_col; 129 static short console_row; 130 131 static void *lcd_console_address; 132 static void *lcd_base; /* Start of framebuffer memory */ 133 134 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 135 136 /************************************************************************/ 137 138 /* Flush LCD activity to the caches */ 139 void lcd_sync(void) 140 { 141 /* 142 * flush_dcache_range() is declared in common.h but it seems that some 143 * architectures do not actually implement it. Is there a way to find 144 * out whether it exists? For now, ARM is safe. 145 */ 146 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 147 int line_length; 148 149 if (lcd_flush_dcache) 150 flush_dcache_range((u32)lcd_base, 151 (u32)(lcd_base + lcd_get_size(&line_length))); 152 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 153 static ulong last_sync; 154 155 if (get_timer(last_sync) > 10) { 156 sandbox_sdl_sync(lcd_base); 157 last_sync = get_timer(0); 158 } 159 #endif 160 } 161 162 void lcd_set_flush_dcache(int flush) 163 { 164 lcd_flush_dcache = (flush != 0); 165 } 166 167 /*----------------------------------------------------------------------*/ 168 169 static void console_scrollup(void) 170 { 171 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 172 173 /* Copy up rows ignoring those that will be overwritten */ 174 memcpy(CONSOLE_ROW_FIRST, 175 lcd_console_address + CONSOLE_ROW_SIZE * rows, 176 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 177 178 /* Clear the last rows */ 179 #if (LCD_BPP != LCD_COLOR32) 180 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 181 COLOR_MASK(lcd_color_bg), 182 CONSOLE_ROW_SIZE * rows); 183 #else 184 u32 *ppix = lcd_console_address + 185 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows; 186 u32 i; 187 for (i = 0; 188 i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix); 189 i++) { 190 *ppix++ = COLOR_MASK(lcd_color_bg); 191 } 192 #endif 193 lcd_sync(); 194 console_row -= rows; 195 } 196 197 /*----------------------------------------------------------------------*/ 198 199 static inline void console_back(void) 200 { 201 if (--console_col < 0) { 202 console_col = CONSOLE_COLS-1 ; 203 if (--console_row < 0) 204 console_row = 0; 205 } 206 207 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 208 console_row * VIDEO_FONT_HEIGHT, ' '); 209 } 210 211 /*----------------------------------------------------------------------*/ 212 213 static inline void console_newline(void) 214 { 215 console_col = 0; 216 217 /* Check if we need to scroll the terminal */ 218 if (++console_row >= CONSOLE_ROWS) 219 console_scrollup(); 220 else 221 lcd_sync(); 222 } 223 224 /*----------------------------------------------------------------------*/ 225 226 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 227 { 228 lcd_putc(c); 229 } 230 231 void lcd_putc(const char c) 232 { 233 if (!lcd_is_enabled) { 234 serial_putc(c); 235 236 return; 237 } 238 239 switch (c) { 240 case '\r': 241 console_col = 0; 242 243 return; 244 case '\n': 245 console_newline(); 246 247 return; 248 case '\t': /* Tab (8 chars alignment) */ 249 console_col += 8; 250 console_col &= ~7; 251 252 if (console_col >= CONSOLE_COLS) 253 console_newline(); 254 255 return; 256 case '\b': 257 console_back(); 258 259 return; 260 default: 261 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 262 console_row * VIDEO_FONT_HEIGHT, c); 263 if (++console_col >= CONSOLE_COLS) 264 console_newline(); 265 } 266 } 267 268 /*----------------------------------------------------------------------*/ 269 270 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 271 { 272 lcd_puts(s); 273 } 274 275 void lcd_puts(const char *s) 276 { 277 if (!lcd_is_enabled) { 278 serial_puts(s); 279 280 return; 281 } 282 283 while (*s) 284 lcd_putc(*s++); 285 286 lcd_sync(); 287 } 288 289 /*----------------------------------------------------------------------*/ 290 291 void lcd_printf(const char *fmt, ...) 292 { 293 va_list args; 294 char buf[CONFIG_SYS_PBSIZE]; 295 296 va_start(args, fmt); 297 vsprintf(buf, fmt, args); 298 va_end(args); 299 300 lcd_puts(buf); 301 } 302 303 /************************************************************************/ 304 /* ** Low-Level Graphics Routines */ 305 /************************************************************************/ 306 307 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 308 { 309 uchar *dest; 310 ushort row; 311 312 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 313 y += BMP_LOGO_HEIGHT; 314 #endif 315 316 #if LCD_BPP == LCD_MONOCHROME 317 ushort off = x * (1 << LCD_BPP) % 8; 318 #endif 319 320 dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8); 321 322 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 323 uchar *s = str; 324 int i; 325 #if LCD_BPP == LCD_COLOR16 326 ushort *d = (ushort *)dest; 327 #elif LCD_BPP == LCD_COLOR32 328 u32 *d = (u32 *)dest; 329 #else 330 uchar *d = dest; 331 #endif 332 333 #if LCD_BPP == LCD_MONOCHROME 334 uchar rest = *d & -(1 << (8 - off)); 335 uchar sym; 336 #endif 337 for (i = 0; i < count; ++i) { 338 uchar c, bits; 339 340 c = *s++; 341 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 342 343 #if LCD_BPP == LCD_MONOCHROME 344 sym = (COLOR_MASK(lcd_color_fg) & bits) | 345 (COLOR_MASK(lcd_color_bg) & ~bits); 346 347 *d++ = rest | (sym >> off); 348 rest = sym << (8-off); 349 #elif LCD_BPP == LCD_COLOR8 350 for (c = 0; c < 8; ++c) { 351 *d++ = (bits & 0x80) ? 352 lcd_color_fg : lcd_color_bg; 353 bits <<= 1; 354 } 355 #elif LCD_BPP == LCD_COLOR16 356 for (c = 0; c < 8; ++c) { 357 *d++ = (bits & 0x80) ? 358 lcd_color_fg : lcd_color_bg; 359 bits <<= 1; 360 } 361 #elif LCD_BPP == LCD_COLOR32 362 for (c = 0; c < 8; ++c) { 363 *d++ = (bits & 0x80) ? 364 lcd_color_fg : lcd_color_bg; 365 bits <<= 1; 366 } 367 #endif 368 } 369 #if LCD_BPP == LCD_MONOCHROME 370 *d = rest | (*d & ((1 << (8 - off)) - 1)); 371 #endif 372 } 373 } 374 375 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 376 { 377 lcd_drawchars(x, y, &c, 1); 378 } 379 380 /************************************************************************/ 381 /** Small utility to check that you got the colours right */ 382 /************************************************************************/ 383 #ifdef LCD_TEST_PATTERN 384 385 #define N_BLK_VERT 2 386 #define N_BLK_HOR 3 387 388 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 389 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 390 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 391 }; 392 393 static void test_pattern(void) 394 { 395 ushort v_max = panel_info.vl_row; 396 ushort h_max = panel_info.vl_col; 397 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 398 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 399 ushort v, h; 400 uchar *pix = (uchar *)lcd_base; 401 402 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 403 h_max, v_max, h_step, v_step); 404 405 /* WARNING: Code silently assumes 8bit/pixel */ 406 for (v = 0; v < v_max; ++v) { 407 uchar iy = v / v_step; 408 for (h = 0; h < h_max; ++h) { 409 uchar ix = N_BLK_HOR * iy + h / h_step; 410 *pix++ = test_colors[ix]; 411 } 412 } 413 } 414 #endif /* LCD_TEST_PATTERN */ 415 416 417 /************************************************************************/ 418 /* ** GENERIC Initialization Routines */ 419 /************************************************************************/ 420 /* 421 * With most lcd drivers the line length is set up 422 * by calculating it from panel_info parameters. Some 423 * drivers need to calculate the line length differently, 424 * so make the function weak to allow overriding it. 425 */ 426 __weak int lcd_get_size(int *line_length) 427 { 428 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 429 return *line_length * panel_info.vl_row; 430 } 431 432 int drv_lcd_init(void) 433 { 434 struct stdio_dev lcddev; 435 int rc; 436 437 lcd_base = map_sysmem(gd->fb_base, 0); 438 439 lcd_init(lcd_base); /* LCD initialization */ 440 441 /* Device initialization */ 442 memset(&lcddev, 0, sizeof(lcddev)); 443 444 strcpy(lcddev.name, "lcd"); 445 lcddev.ext = 0; /* No extensions */ 446 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 447 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 448 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 449 450 rc = stdio_register(&lcddev); 451 452 return (rc == 0) ? 1 : rc; 453 } 454 455 /*----------------------------------------------------------------------*/ 456 void lcd_clear(void) 457 { 458 #if LCD_BPP == LCD_MONOCHROME 459 /* Setting the palette */ 460 lcd_initcolregs(); 461 462 #elif LCD_BPP == LCD_COLOR8 463 /* Setting the palette */ 464 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 465 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 466 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 467 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 468 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 469 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 470 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 471 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 472 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 473 #endif 474 475 #ifndef CONFIG_SYS_WHITE_ON_BLACK 476 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 477 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 478 #else 479 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 480 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 481 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 482 483 #ifdef LCD_TEST_PATTERN 484 test_pattern(); 485 #else 486 /* set framebuffer to background color */ 487 #if (LCD_BPP != LCD_COLOR32) 488 memset((char *)lcd_base, 489 COLOR_MASK(lcd_color_bg), 490 lcd_line_length * panel_info.vl_row); 491 #else 492 u32 *ppix = lcd_base; 493 u32 i; 494 for (i = 0; 495 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 496 i++) { 497 *ppix++ = COLOR_MASK(lcd_color_bg); 498 } 499 #endif 500 #endif 501 /* Paint the logo and retrieve LCD base address */ 502 debug("[LCD] Drawing the logo...\n"); 503 lcd_console_address = lcd_logo(); 504 505 console_col = 0; 506 console_row = 0; 507 lcd_sync(); 508 } 509 510 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 511 char *const argv[]) 512 { 513 lcd_clear(); 514 return 0; 515 } 516 517 U_BOOT_CMD( 518 cls, 1, 1, do_lcd_clear, 519 "clear screen", 520 "" 521 ); 522 523 /*----------------------------------------------------------------------*/ 524 525 static int lcd_init(void *lcdbase) 526 { 527 /* Initialize the lcd controller */ 528 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 529 530 lcd_ctrl_init(lcdbase); 531 532 /* 533 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 534 * the 'lcdbase' argument and uses custom lcd base address 535 * by setting up gd->fb_base. Check for this condition and fixup 536 * 'lcd_base' address. 537 */ 538 if (map_to_sysmem(lcdbase) != gd->fb_base) 539 lcd_base = map_sysmem(gd->fb_base, 0); 540 541 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 542 543 lcd_get_size(&lcd_line_length); 544 lcd_is_enabled = 1; 545 lcd_clear(); 546 lcd_enable(); 547 548 /* Initialize the console */ 549 console_col = 0; 550 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 551 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 552 #else 553 console_row = 1; /* leave 1 blank line below logo */ 554 #endif 555 556 return 0; 557 } 558 559 560 /************************************************************************/ 561 /* ** ROM capable initialization part - needed to reserve FB memory */ 562 /************************************************************************/ 563 /* 564 * This is called early in the system initialization to grab memory 565 * for the LCD controller. 566 * Returns new address for monitor, after reserving LCD buffer memory 567 * 568 * Note that this is running from ROM, so no write access to global data. 569 */ 570 ulong lcd_setmem(ulong addr) 571 { 572 ulong size; 573 int line_length; 574 575 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 576 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 577 578 size = lcd_get_size(&line_length); 579 580 /* Round up to nearest full page, or MMU section if defined */ 581 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 582 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 583 584 /* Allocate pages for the frame buffer. */ 585 addr -= size; 586 587 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 588 size >> 10, addr); 589 590 return addr; 591 } 592 593 /*----------------------------------------------------------------------*/ 594 595 static void lcd_setfgcolor(int color) 596 { 597 lcd_color_fg = color; 598 } 599 600 /*----------------------------------------------------------------------*/ 601 602 static void lcd_setbgcolor(int color) 603 { 604 lcd_color_bg = color; 605 } 606 607 /************************************************************************/ 608 /* ** Chipset depending Bitmap / Logo stuff... */ 609 /************************************************************************/ 610 static inline ushort *configuration_get_cmap(void) 611 { 612 #if defined CONFIG_CPU_PXA 613 struct pxafb_info *fbi = &panel_info.pxa; 614 return (ushort *)fbi->palette; 615 #elif defined(CONFIG_MPC823) 616 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 617 cpm8xx_t *cp = &(immr->im_cpm); 618 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 619 #elif defined(CONFIG_ATMEL_LCD) 620 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 621 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 622 return panel_info.cmap; 623 #elif defined(CONFIG_LCD_LOGO) 624 return bmp_logo_palette; 625 #else 626 return NULL; 627 #endif 628 } 629 630 #ifdef CONFIG_LCD_LOGO 631 void bitmap_plot(int x, int y) 632 { 633 #ifdef CONFIG_ATMEL_LCD 634 uint *cmap = (uint *)bmp_logo_palette; 635 #else 636 ushort *cmap = (ushort *)bmp_logo_palette; 637 #endif 638 ushort i, j; 639 uchar *bmap; 640 uchar *fb; 641 ushort *fb16; 642 #if defined(CONFIG_MPC823) 643 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 644 cpm8xx_t *cp = &(immr->im_cpm); 645 #endif 646 unsigned bpix = NBITS(panel_info.vl_bpix); 647 648 debug("Logo: width %d height %d colors %d cmap %d\n", 649 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 650 ARRAY_SIZE(bmp_logo_palette)); 651 652 bmap = &bmp_logo_bitmap[0]; 653 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 654 655 if (bpix < 12) { 656 /* Leave room for default color map 657 * default case: generic system with no cmap (most likely 16bpp) 658 * cmap was set to the source palette, so no change is done. 659 * This avoids even more ifdefs in the next stanza 660 */ 661 #if defined(CONFIG_MPC823) 662 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 663 #elif defined(CONFIG_ATMEL_LCD) 664 cmap = (uint *)configuration_get_cmap(); 665 #else 666 cmap = configuration_get_cmap(); 667 #endif 668 669 WATCHDOG_RESET(); 670 671 /* Set color map */ 672 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 673 ushort colreg = bmp_logo_palette[i]; 674 #ifdef CONFIG_ATMEL_LCD 675 uint lut_entry; 676 #ifdef CONFIG_ATMEL_LCD_BGR555 677 lut_entry = ((colreg & 0x000F) << 11) | 678 ((colreg & 0x00F0) << 2) | 679 ((colreg & 0x0F00) >> 7); 680 #else /* CONFIG_ATMEL_LCD_RGB565 */ 681 lut_entry = ((colreg & 0x000F) << 1) | 682 ((colreg & 0x00F0) << 3) | 683 ((colreg & 0x0F00) << 4); 684 #endif 685 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 686 cmap++; 687 #else /* !CONFIG_ATMEL_LCD */ 688 #ifdef CONFIG_SYS_INVERT_COLORS 689 *cmap++ = 0xffff - colreg; 690 #else 691 *cmap++ = colreg; 692 #endif 693 #endif /* CONFIG_ATMEL_LCD */ 694 } 695 696 WATCHDOG_RESET(); 697 698 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 699 memcpy(fb, bmap, BMP_LOGO_WIDTH); 700 bmap += BMP_LOGO_WIDTH; 701 fb += panel_info.vl_col; 702 } 703 } 704 else { /* true color mode */ 705 u16 col16; 706 fb16 = (ushort *)fb; 707 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 708 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 709 col16 = bmp_logo_palette[(bmap[j]-16)]; 710 fb16[j] = 711 ((col16 & 0x000F) << 1) | 712 ((col16 & 0x00F0) << 3) | 713 ((col16 & 0x0F00) << 4); 714 } 715 bmap += BMP_LOGO_WIDTH; 716 fb16 += panel_info.vl_col; 717 } 718 } 719 720 WATCHDOG_RESET(); 721 lcd_sync(); 722 } 723 #else 724 static inline void bitmap_plot(int x, int y) {} 725 #endif /* CONFIG_LCD_LOGO */ 726 727 /*----------------------------------------------------------------------*/ 728 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 729 /* 730 * Display the BMP file located at address bmp_image. 731 * Only uncompressed. 732 */ 733 734 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 735 #define BMP_ALIGN_CENTER 0x7FFF 736 737 static void splash_align_axis(int *axis, unsigned long panel_size, 738 unsigned long picture_size) 739 { 740 unsigned long panel_picture_delta = panel_size - picture_size; 741 unsigned long axis_alignment; 742 743 if (*axis == BMP_ALIGN_CENTER) 744 axis_alignment = panel_picture_delta / 2; 745 else if (*axis < 0) 746 axis_alignment = panel_picture_delta + *axis + 1; 747 else 748 return; 749 750 *axis = max(0, (int)axis_alignment); 751 } 752 #endif 753 754 755 #ifdef CONFIG_LCD_BMP_RLE8 756 757 #define BMP_RLE8_ESCAPE 0 758 #define BMP_RLE8_EOL 0 759 #define BMP_RLE8_EOBMP 1 760 #define BMP_RLE8_DELTA 2 761 762 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 763 int cnt) 764 { 765 while (cnt > 0) { 766 *(*fbp)++ = cmap[*bmap++]; 767 cnt--; 768 } 769 } 770 771 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 772 { 773 ushort *fb = *fbp; 774 int cnt_8copy = cnt >> 3; 775 776 cnt -= cnt_8copy << 3; 777 while (cnt_8copy > 0) { 778 *fb++ = c; 779 *fb++ = c; 780 *fb++ = c; 781 *fb++ = c; 782 *fb++ = c; 783 *fb++ = c; 784 *fb++ = c; 785 *fb++ = c; 786 cnt_8copy--; 787 } 788 while (cnt > 0) { 789 *fb++ = c; 790 cnt--; 791 } 792 *fbp = fb; 793 } 794 795 /* 796 * Do not call this function directly, must be called from lcd_display_bitmap. 797 */ 798 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 799 int x_off, int y_off) 800 { 801 uchar *bmap; 802 ulong width, height; 803 ulong cnt, runlen; 804 int x, y; 805 int decode = 1; 806 807 width = get_unaligned_le32(&bmp->header.width); 808 height = get_unaligned_le32(&bmp->header.height); 809 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 810 811 x = 0; 812 y = height - 1; 813 814 while (decode) { 815 if (bmap[0] == BMP_RLE8_ESCAPE) { 816 switch (bmap[1]) { 817 case BMP_RLE8_EOL: 818 /* end of line */ 819 bmap += 2; 820 x = 0; 821 y--; 822 /* 16bpix, 2-byte per pixel, width should *2 */ 823 fb -= (width * 2 + lcd_line_length); 824 break; 825 case BMP_RLE8_EOBMP: 826 /* end of bitmap */ 827 decode = 0; 828 break; 829 case BMP_RLE8_DELTA: 830 /* delta run */ 831 x += bmap[2]; 832 y -= bmap[3]; 833 /* 16bpix, 2-byte per pixel, x should *2 */ 834 fb = (uchar *) (lcd_base + (y + y_off - 1) 835 * lcd_line_length + (x + x_off) * 2); 836 bmap += 4; 837 break; 838 default: 839 /* unencoded run */ 840 runlen = bmap[1]; 841 bmap += 2; 842 if (y < height) { 843 if (x < width) { 844 if (x + runlen > width) 845 cnt = width - x; 846 else 847 cnt = runlen; 848 draw_unencoded_bitmap( 849 (ushort **)&fb, 850 bmap, cmap, cnt); 851 } 852 x += runlen; 853 } 854 bmap += runlen; 855 if (runlen & 1) 856 bmap++; 857 } 858 } else { 859 /* encoded run */ 860 if (y < height) { 861 runlen = bmap[0]; 862 if (x < width) { 863 /* aggregate the same code */ 864 while (bmap[0] == 0xff && 865 bmap[2] != BMP_RLE8_ESCAPE && 866 bmap[1] == bmap[3]) { 867 runlen += bmap[2]; 868 bmap += 2; 869 } 870 if (x + runlen > width) 871 cnt = width - x; 872 else 873 cnt = runlen; 874 draw_encoded_bitmap((ushort **)&fb, 875 cmap[bmap[1]], cnt); 876 } 877 x += runlen; 878 } 879 bmap += 2; 880 } 881 } 882 } 883 #endif 884 885 #if defined(CONFIG_MPC823) 886 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 887 #else 888 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 889 #endif 890 891 #if defined(CONFIG_BMP_16BPP) 892 #if defined(CONFIG_ATMEL_LCD_BGR555) 893 static inline void fb_put_word(uchar **fb, uchar **from) 894 { 895 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 896 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 897 *from += 2; 898 } 899 #else 900 static inline void fb_put_word(uchar **fb, uchar **from) 901 { 902 *(*fb)++ = *(*from)++; 903 *(*fb)++ = *(*from)++; 904 } 905 #endif 906 #endif /* CONFIG_BMP_16BPP */ 907 908 int lcd_display_bitmap(ulong bmp_image, int x, int y) 909 { 910 ushort *cmap = NULL; 911 ushort *cmap_base = NULL; 912 ushort i, j; 913 uchar *fb; 914 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 915 uchar *bmap; 916 ushort padded_width; 917 unsigned long width, height, byte_width; 918 unsigned long pwidth = panel_info.vl_col; 919 unsigned colors, bpix, bmp_bpix; 920 921 if (!bmp || !(bmp->header.signature[0] == 'B' && 922 bmp->header.signature[1] == 'M')) { 923 printf("Error: no valid bmp image at %lx\n", bmp_image); 924 925 return 1; 926 } 927 928 width = get_unaligned_le32(&bmp->header.width); 929 height = get_unaligned_le32(&bmp->header.height); 930 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 931 932 colors = 1 << bmp_bpix; 933 934 bpix = NBITS(panel_info.vl_bpix); 935 936 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 937 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 938 bpix, bmp_bpix); 939 940 return 1; 941 } 942 943 /* 944 * We support displaying 8bpp BMPs on 16bpp LCDs 945 * and displaying 24bpp BMPs on 32bpp LCDs 946 * */ 947 if (bpix != bmp_bpix && 948 !(bmp_bpix == 8 && bpix == 16) && 949 !(bmp_bpix == 24 && bpix == 32)) { 950 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 951 bpix, get_unaligned_le16(&bmp->header.bit_count)); 952 return 1; 953 } 954 955 debug("Display-bmp: %d x %d with %d colors\n", 956 (int)width, (int)height, (int)colors); 957 958 if (bmp_bpix == 8) { 959 cmap = configuration_get_cmap(); 960 cmap_base = cmap; 961 962 /* Set color map */ 963 for (i = 0; i < colors; ++i) { 964 bmp_color_table_entry_t cte = bmp->color_table[i]; 965 #if !defined(CONFIG_ATMEL_LCD) 966 ushort colreg = 967 ( ((cte.red) << 8) & 0xf800) | 968 ( ((cte.green) << 3) & 0x07e0) | 969 ( ((cte.blue) >> 3) & 0x001f) ; 970 #ifdef CONFIG_SYS_INVERT_COLORS 971 *cmap = 0xffff - colreg; 972 #else 973 *cmap = colreg; 974 #endif 975 #if defined(CONFIG_MPC823) 976 cmap--; 977 #else 978 cmap++; 979 #endif 980 #else /* CONFIG_ATMEL_LCD */ 981 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 982 #endif 983 } 984 } 985 986 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 987 988 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 989 splash_align_axis(&x, pwidth, width); 990 splash_align_axis(&y, panel_info.vl_row, height); 991 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 992 993 if ((x + width) > pwidth) 994 width = pwidth - x; 995 if ((y + height) > panel_info.vl_row) 996 height = panel_info.vl_row - y; 997 998 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 999 fb = (uchar *)(lcd_base + 1000 (y + height - 1) * lcd_line_length + x * bpix / 8); 1001 1002 switch (bmp_bpix) { 1003 case 1: /* pass through */ 1004 case 8: { 1005 #ifdef CONFIG_LCD_BMP_RLE8 1006 u32 compression = get_unaligned_le32(&bmp->header.compression); 1007 if (compression == BMP_BI_RLE8) { 1008 if (bpix != 16) { 1009 /* TODO implement render code for bpix != 16 */ 1010 printf("Error: only support 16 bpix"); 1011 return 1; 1012 } 1013 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1014 break; 1015 } 1016 #endif 1017 1018 if (bpix != 16) 1019 byte_width = width; 1020 else 1021 byte_width = width * 2; 1022 1023 for (i = 0; i < height; ++i) { 1024 WATCHDOG_RESET(); 1025 for (j = 0; j < width; j++) { 1026 if (bpix != 16) { 1027 FB_PUT_BYTE(fb, bmap); 1028 } else { 1029 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1030 fb += sizeof(uint16_t) / sizeof(*fb); 1031 } 1032 } 1033 bmap += (padded_width - width); 1034 fb -= byte_width + lcd_line_length; 1035 } 1036 break; 1037 } 1038 #if defined(CONFIG_BMP_16BPP) 1039 case 16: 1040 for (i = 0; i < height; ++i) { 1041 WATCHDOG_RESET(); 1042 for (j = 0; j < width; j++) 1043 fb_put_word(&fb, &bmap); 1044 1045 bmap += (padded_width - width) * 2; 1046 fb -= width * 2 + lcd_line_length; 1047 } 1048 break; 1049 #endif /* CONFIG_BMP_16BPP */ 1050 #if defined(CONFIG_BMP_24BMP) 1051 case 24: 1052 for (i = 0; i < height; ++i) { 1053 for (j = 0; j < width; j++) { 1054 *(fb++) = *(bmap++); 1055 *(fb++) = *(bmap++); 1056 *(fb++) = *(bmap++); 1057 *(fb++) = 0; 1058 } 1059 fb -= lcd_line_length + width * (bpix / 8); 1060 } 1061 break; 1062 #endif /* CONFIG_BMP_24BMP */ 1063 #if defined(CONFIG_BMP_32BPP) 1064 case 32: 1065 for (i = 0; i < height; ++i) { 1066 for (j = 0; j < width; j++) { 1067 *(fb++) = *(bmap++); 1068 *(fb++) = *(bmap++); 1069 *(fb++) = *(bmap++); 1070 *(fb++) = *(bmap++); 1071 } 1072 fb -= lcd_line_length + width * (bpix / 8); 1073 } 1074 break; 1075 #endif /* CONFIG_BMP_32BPP */ 1076 default: 1077 break; 1078 }; 1079 1080 lcd_sync(); 1081 return 0; 1082 } 1083 #endif 1084 1085 static void *lcd_logo(void) 1086 { 1087 #ifdef CONFIG_SPLASH_SCREEN 1088 char *s; 1089 ulong addr; 1090 static int do_splash = 1; 1091 1092 if (do_splash && (s = getenv("splashimage")) != NULL) { 1093 int x = 0, y = 0; 1094 do_splash = 0; 1095 1096 if (splash_screen_prepare()) 1097 return (void *)lcd_base; 1098 1099 addr = simple_strtoul (s, NULL, 16); 1100 1101 splash_get_pos(&x, &y); 1102 1103 if (bmp_display(addr, x, y) == 0) 1104 return (void *)lcd_base; 1105 } 1106 #endif /* CONFIG_SPLASH_SCREEN */ 1107 1108 bitmap_plot(0, 0); 1109 1110 #ifdef CONFIG_LCD_INFO 1111 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1112 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1113 lcd_show_board_info(); 1114 #endif /* CONFIG_LCD_INFO */ 1115 1116 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1117 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1118 #else 1119 return (void *)lcd_base; 1120 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1121 } 1122 1123 #ifdef CONFIG_SPLASHIMAGE_GUARD 1124 static int on_splashimage(const char *name, const char *value, enum env_op op, 1125 int flags) 1126 { 1127 ulong addr; 1128 int aligned; 1129 1130 if (op == env_op_delete) 1131 return 0; 1132 1133 addr = simple_strtoul(value, NULL, 16); 1134 /* See README.displaying-bmps */ 1135 aligned = (addr % 4 == 2); 1136 if (!aligned) { 1137 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1138 return -1; 1139 } 1140 1141 return 0; 1142 } 1143 1144 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1145 #endif 1146 1147 void lcd_position_cursor(unsigned col, unsigned row) 1148 { 1149 console_col = min_t(short, col, CONSOLE_COLS - 1); 1150 console_row = min_t(short, row, CONSOLE_ROWS - 1); 1151 } 1152 1153 int lcd_get_pixel_width(void) 1154 { 1155 return panel_info.vl_col; 1156 } 1157 1158 int lcd_get_pixel_height(void) 1159 { 1160 return panel_info.vl_row; 1161 } 1162 1163 int lcd_get_screen_rows(void) 1164 { 1165 return CONSOLE_ROWS; 1166 } 1167 1168 int lcd_get_screen_columns(void) 1169 { 1170 return CONSOLE_COLS; 1171 } 1172 1173 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1174 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1175 { 1176 #if LCD_BPP == LCD_COLOR16 1177 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 1178 panel_info.vl_col, panel_info.vl_row, 1179 panel_info.vl_col * 2, "r5g6b5"); 1180 #else 1181 return -1; 1182 #endif 1183 } 1184 1185 int lcd_dt_simplefb_add_node(void *blob) 1186 { 1187 static const char compat[] = "simple-framebuffer"; 1188 static const char disabled[] = "disabled"; 1189 int off, ret; 1190 1191 off = fdt_add_subnode(blob, 0, "framebuffer"); 1192 if (off < 0) 1193 return -1; 1194 1195 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1196 if (ret < 0) 1197 return -1; 1198 1199 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1200 if (ret < 0) 1201 return -1; 1202 1203 return lcd_dt_simplefb_configure_node(blob, off); 1204 } 1205 1206 int lcd_dt_simplefb_enable_existing_node(void *blob) 1207 { 1208 int off; 1209 1210 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1211 if (off < 0) 1212 return -1; 1213 1214 return lcd_dt_simplefb_configure_node(blob, off); 1215 } 1216 #endif 1217