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 34 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 35 defined(CONFIG_CPU_MONAHANS) 36 #define CONFIG_CPU_PXA 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 # define COLOR_MASK(c) (c) 105 #else 106 # error Unsupported LCD BPP. 107 #endif 108 109 DECLARE_GLOBAL_DATA_PTR; 110 111 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 112 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 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 int lcd_getbgcolor(void); 120 static void lcd_setfgcolor(int color); 121 static void lcd_setbgcolor(int color); 122 123 static int lcd_color_fg; 124 static int lcd_color_bg; 125 int lcd_line_length; 126 127 char lcd_is_enabled = 0; 128 129 static short console_col; 130 static short console_row; 131 132 static void *lcd_console_address; 133 static void *lcd_base; /* Start of framebuffer memory */ 134 135 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 136 137 /************************************************************************/ 138 139 /* Flush LCD activity to the caches */ 140 void lcd_sync(void) 141 { 142 /* 143 * flush_dcache_range() is declared in common.h but it seems that some 144 * architectures do not actually implement it. Is there a way to find 145 * out whether it exists? For now, ARM is safe. 146 */ 147 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 148 int line_length; 149 150 if (lcd_flush_dcache) 151 flush_dcache_range((u32)lcd_base, 152 (u32)(lcd_base + lcd_get_size(&line_length))); 153 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 154 static ulong last_sync; 155 156 if (get_timer(last_sync) > 10) { 157 sandbox_sdl_sync(lcd_base); 158 last_sync = get_timer(0); 159 } 160 #endif 161 } 162 163 void lcd_set_flush_dcache(int flush) 164 { 165 lcd_flush_dcache = (flush != 0); 166 } 167 168 /*----------------------------------------------------------------------*/ 169 170 static void console_scrollup(void) 171 { 172 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 173 174 /* Copy up rows ignoring those that will be overwritten */ 175 memcpy(CONSOLE_ROW_FIRST, 176 lcd_console_address + CONSOLE_ROW_SIZE * rows, 177 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 178 179 /* Clear the last rows */ 180 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 181 COLOR_MASK(lcd_color_bg), 182 CONSOLE_ROW_SIZE * rows); 183 184 lcd_sync(); 185 console_row -= rows; 186 } 187 188 /*----------------------------------------------------------------------*/ 189 190 static inline void console_back(void) 191 { 192 if (--console_col < 0) { 193 console_col = CONSOLE_COLS-1 ; 194 if (--console_row < 0) 195 console_row = 0; 196 } 197 198 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 199 console_row * VIDEO_FONT_HEIGHT, ' '); 200 } 201 202 /*----------------------------------------------------------------------*/ 203 204 static inline void console_newline(void) 205 { 206 console_col = 0; 207 208 /* Check if we need to scroll the terminal */ 209 if (++console_row >= CONSOLE_ROWS) 210 console_scrollup(); 211 else 212 lcd_sync(); 213 } 214 215 /*----------------------------------------------------------------------*/ 216 217 void lcd_putc(const char c) 218 { 219 if (!lcd_is_enabled) { 220 serial_putc(c); 221 222 return; 223 } 224 225 switch (c) { 226 case '\r': 227 console_col = 0; 228 229 return; 230 case '\n': 231 console_newline(); 232 233 return; 234 case '\t': /* Tab (8 chars alignment) */ 235 console_col += 8; 236 console_col &= ~7; 237 238 if (console_col >= CONSOLE_COLS) 239 console_newline(); 240 241 return; 242 case '\b': 243 console_back(); 244 245 return; 246 default: 247 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 248 console_row * VIDEO_FONT_HEIGHT, c); 249 if (++console_col >= CONSOLE_COLS) 250 console_newline(); 251 } 252 } 253 254 /*----------------------------------------------------------------------*/ 255 256 void lcd_puts(const char *s) 257 { 258 if (!lcd_is_enabled) { 259 serial_puts(s); 260 261 return; 262 } 263 264 while (*s) 265 lcd_putc(*s++); 266 267 lcd_sync(); 268 } 269 270 /*----------------------------------------------------------------------*/ 271 272 void lcd_printf(const char *fmt, ...) 273 { 274 va_list args; 275 char buf[CONFIG_SYS_PBSIZE]; 276 277 va_start(args, fmt); 278 vsprintf(buf, fmt, args); 279 va_end(args); 280 281 lcd_puts(buf); 282 } 283 284 /************************************************************************/ 285 /* ** Low-Level Graphics Routines */ 286 /************************************************************************/ 287 288 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 289 { 290 uchar *dest; 291 ushort row; 292 293 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 294 y += BMP_LOGO_HEIGHT; 295 #endif 296 297 #if LCD_BPP == LCD_MONOCHROME 298 ushort off = x * (1 << LCD_BPP) % 8; 299 #endif 300 301 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 302 303 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 304 uchar *s = str; 305 int i; 306 #if LCD_BPP == LCD_COLOR16 307 ushort *d = (ushort *)dest; 308 #else 309 uchar *d = dest; 310 #endif 311 312 #if LCD_BPP == LCD_MONOCHROME 313 uchar rest = *d & -(1 << (8 - off)); 314 uchar sym; 315 #endif 316 for (i = 0; i < count; ++i) { 317 uchar c, bits; 318 319 c = *s++; 320 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 321 322 #if LCD_BPP == LCD_MONOCHROME 323 sym = (COLOR_MASK(lcd_color_fg) & bits) | 324 (COLOR_MASK(lcd_color_bg) & ~bits); 325 326 *d++ = rest | (sym >> off); 327 rest = sym << (8-off); 328 #elif LCD_BPP == LCD_COLOR8 329 for (c = 0; c < 8; ++c) { 330 *d++ = (bits & 0x80) ? 331 lcd_color_fg : lcd_color_bg; 332 bits <<= 1; 333 } 334 #elif LCD_BPP == LCD_COLOR16 335 for (c = 0; c < 8; ++c) { 336 *d++ = (bits & 0x80) ? 337 lcd_color_fg : lcd_color_bg; 338 bits <<= 1; 339 } 340 #endif 341 } 342 #if LCD_BPP == LCD_MONOCHROME 343 *d = rest | (*d & ((1 << (8 - off)) - 1)); 344 #endif 345 } 346 } 347 348 /*----------------------------------------------------------------------*/ 349 350 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 351 { 352 lcd_drawchars(x, y, s, strlen((char *)s)); 353 } 354 355 /*----------------------------------------------------------------------*/ 356 357 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 358 { 359 lcd_drawchars(x, y, &c, 1); 360 } 361 362 /************************************************************************/ 363 /** Small utility to check that you got the colours right */ 364 /************************************************************************/ 365 #ifdef LCD_TEST_PATTERN 366 367 #define N_BLK_VERT 2 368 #define N_BLK_HOR 3 369 370 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 371 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 372 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 373 }; 374 375 static void test_pattern(void) 376 { 377 ushort v_max = panel_info.vl_row; 378 ushort h_max = panel_info.vl_col; 379 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 380 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 381 ushort v, h; 382 uchar *pix = (uchar *)lcd_base; 383 384 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 385 h_max, v_max, h_step, v_step); 386 387 /* WARNING: Code silently assumes 8bit/pixel */ 388 for (v = 0; v < v_max; ++v) { 389 uchar iy = v / v_step; 390 for (h = 0; h < h_max; ++h) { 391 uchar ix = N_BLK_HOR * iy + h / h_step; 392 *pix++ = test_colors[ix]; 393 } 394 } 395 } 396 #endif /* LCD_TEST_PATTERN */ 397 398 399 /************************************************************************/ 400 /* ** GENERIC Initialization Routines */ 401 /************************************************************************/ 402 /* 403 * With most lcd drivers the line length is set up 404 * by calculating it from panel_info parameters. Some 405 * drivers need to calculate the line length differently, 406 * so make the function weak to allow overriding it. 407 */ 408 __weak int lcd_get_size(int *line_length) 409 { 410 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 411 return *line_length * panel_info.vl_row; 412 } 413 414 int drv_lcd_init(void) 415 { 416 struct stdio_dev lcddev; 417 int rc; 418 419 lcd_base = map_sysmem(gd->fb_base, 0); 420 421 lcd_init(lcd_base); /* LCD initialization */ 422 423 /* Device initialization */ 424 memset(&lcddev, 0, sizeof(lcddev)); 425 426 strcpy(lcddev.name, "lcd"); 427 lcddev.ext = 0; /* No extensions */ 428 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 429 lcddev.putc = lcd_putc; /* 'putc' function */ 430 lcddev.puts = lcd_puts; /* 'puts' function */ 431 432 rc = stdio_register(&lcddev); 433 434 return (rc == 0) ? 1 : rc; 435 } 436 437 /*----------------------------------------------------------------------*/ 438 void lcd_clear(void) 439 { 440 #if LCD_BPP == LCD_MONOCHROME 441 /* Setting the palette */ 442 lcd_initcolregs(); 443 444 #elif LCD_BPP == LCD_COLOR8 445 /* Setting the palette */ 446 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 447 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 448 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 449 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 450 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 451 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 452 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 453 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 454 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 455 #endif 456 457 #ifndef CONFIG_SYS_WHITE_ON_BLACK 458 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 459 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 460 #else 461 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 462 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 463 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 464 465 #ifdef LCD_TEST_PATTERN 466 test_pattern(); 467 #else 468 /* set framebuffer to background color */ 469 memset((char *)lcd_base, 470 COLOR_MASK(lcd_getbgcolor()), 471 lcd_line_length * panel_info.vl_row); 472 #endif 473 /* Paint the logo and retrieve LCD base address */ 474 debug("[LCD] Drawing the logo...\n"); 475 lcd_console_address = lcd_logo(); 476 477 console_col = 0; 478 console_row = 0; 479 lcd_sync(); 480 } 481 482 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 483 char *const argv[]) 484 { 485 lcd_clear(); 486 return 0; 487 } 488 489 U_BOOT_CMD( 490 cls, 1, 1, do_lcd_clear, 491 "clear screen", 492 "" 493 ); 494 495 /*----------------------------------------------------------------------*/ 496 497 static int lcd_init(void *lcdbase) 498 { 499 /* Initialize the lcd controller */ 500 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 501 502 lcd_ctrl_init(lcdbase); 503 504 /* 505 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores 506 * the 'lcdbase' argument and uses custom lcd base address 507 * by setting up gd->fb_base. Check for this condition and fixup 508 * 'lcd_base' address. 509 */ 510 if (map_to_sysmem(lcdbase) != gd->fb_base) 511 lcd_base = map_sysmem(gd->fb_base, 0); 512 513 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 514 515 lcd_get_size(&lcd_line_length); 516 lcd_is_enabled = 1; 517 lcd_clear(); 518 lcd_enable(); 519 520 /* Initialize the console */ 521 console_col = 0; 522 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 523 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 524 #else 525 console_row = 1; /* leave 1 blank line below logo */ 526 #endif 527 528 return 0; 529 } 530 531 532 /************************************************************************/ 533 /* ** ROM capable initialization part - needed to reserve FB memory */ 534 /************************************************************************/ 535 /* 536 * This is called early in the system initialization to grab memory 537 * for the LCD controller. 538 * Returns new address for monitor, after reserving LCD buffer memory 539 * 540 * Note that this is running from ROM, so no write access to global data. 541 */ 542 ulong lcd_setmem(ulong addr) 543 { 544 ulong size; 545 int line_length; 546 547 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 548 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 549 550 size = lcd_get_size(&line_length); 551 552 /* Round up to nearest full page, or MMU section if defined */ 553 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 554 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 555 556 /* Allocate pages for the frame buffer. */ 557 addr -= size; 558 559 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 560 size >> 10, addr); 561 562 return addr; 563 } 564 565 /*----------------------------------------------------------------------*/ 566 567 static void lcd_setfgcolor(int color) 568 { 569 lcd_color_fg = color; 570 } 571 572 /*----------------------------------------------------------------------*/ 573 574 static void lcd_setbgcolor(int color) 575 { 576 lcd_color_bg = color; 577 } 578 579 /*----------------------------------------------------------------------*/ 580 581 int lcd_getfgcolor(void) 582 { 583 return lcd_color_fg; 584 } 585 586 /*----------------------------------------------------------------------*/ 587 588 static int lcd_getbgcolor(void) 589 { 590 return lcd_color_bg; 591 } 592 593 /************************************************************************/ 594 /* ** Chipset depending Bitmap / Logo stuff... */ 595 /************************************************************************/ 596 static inline ushort *configuration_get_cmap(void) 597 { 598 #if defined CONFIG_CPU_PXA 599 struct pxafb_info *fbi = &panel_info.pxa; 600 return (ushort *)fbi->palette; 601 #elif defined(CONFIG_MPC823) 602 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 603 cpm8xx_t *cp = &(immr->im_cpm); 604 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 605 #elif defined(CONFIG_ATMEL_LCD) 606 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 607 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 608 return panel_info.cmap; 609 #elif defined(CONFIG_LCD_LOGO) 610 return bmp_logo_palette; 611 #else 612 return NULL; 613 #endif 614 } 615 616 #ifdef CONFIG_LCD_LOGO 617 void bitmap_plot(int x, int y) 618 { 619 #ifdef CONFIG_ATMEL_LCD 620 uint *cmap = (uint *)bmp_logo_palette; 621 #else 622 ushort *cmap = (ushort *)bmp_logo_palette; 623 #endif 624 ushort i, j; 625 uchar *bmap; 626 uchar *fb; 627 ushort *fb16; 628 #if defined(CONFIG_MPC823) 629 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 630 cpm8xx_t *cp = &(immr->im_cpm); 631 #endif 632 unsigned bpix = NBITS(panel_info.vl_bpix); 633 634 debug("Logo: width %d height %d colors %d cmap %d\n", 635 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 636 ARRAY_SIZE(bmp_logo_palette)); 637 638 bmap = &bmp_logo_bitmap[0]; 639 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 640 641 if (bpix < 12) { 642 /* Leave room for default color map 643 * default case: generic system with no cmap (most likely 16bpp) 644 * cmap was set to the source palette, so no change is done. 645 * This avoids even more ifdefs in the next stanza 646 */ 647 #if defined(CONFIG_MPC823) 648 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 649 #elif defined(CONFIG_ATMEL_LCD) 650 cmap = (uint *)configuration_get_cmap(); 651 #else 652 cmap = configuration_get_cmap(); 653 #endif 654 655 WATCHDOG_RESET(); 656 657 /* Set color map */ 658 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 659 ushort colreg = bmp_logo_palette[i]; 660 #ifdef CONFIG_ATMEL_LCD 661 uint lut_entry; 662 #ifdef CONFIG_ATMEL_LCD_BGR555 663 lut_entry = ((colreg & 0x000F) << 11) | 664 ((colreg & 0x00F0) << 2) | 665 ((colreg & 0x0F00) >> 7); 666 #else /* CONFIG_ATMEL_LCD_RGB565 */ 667 lut_entry = ((colreg & 0x000F) << 1) | 668 ((colreg & 0x00F0) << 3) | 669 ((colreg & 0x0F00) << 4); 670 #endif 671 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 672 cmap++; 673 #else /* !CONFIG_ATMEL_LCD */ 674 #ifdef CONFIG_SYS_INVERT_COLORS 675 *cmap++ = 0xffff - colreg; 676 #else 677 *cmap++ = colreg; 678 #endif 679 #endif /* CONFIG_ATMEL_LCD */ 680 } 681 682 WATCHDOG_RESET(); 683 684 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 685 memcpy(fb, bmap, BMP_LOGO_WIDTH); 686 bmap += BMP_LOGO_WIDTH; 687 fb += panel_info.vl_col; 688 } 689 } 690 else { /* true color mode */ 691 u16 col16; 692 fb16 = (ushort *)fb; 693 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 694 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 695 col16 = bmp_logo_palette[(bmap[j]-16)]; 696 fb16[j] = 697 ((col16 & 0x000F) << 1) | 698 ((col16 & 0x00F0) << 3) | 699 ((col16 & 0x0F00) << 4); 700 } 701 bmap += BMP_LOGO_WIDTH; 702 fb16 += panel_info.vl_col; 703 } 704 } 705 706 WATCHDOG_RESET(); 707 lcd_sync(); 708 } 709 #else 710 static inline void bitmap_plot(int x, int y) {} 711 #endif /* CONFIG_LCD_LOGO */ 712 713 /*----------------------------------------------------------------------*/ 714 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 715 /* 716 * Display the BMP file located at address bmp_image. 717 * Only uncompressed. 718 */ 719 720 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 721 #define BMP_ALIGN_CENTER 0x7FFF 722 723 static void splash_align_axis(int *axis, unsigned long panel_size, 724 unsigned long picture_size) 725 { 726 unsigned long panel_picture_delta = panel_size - picture_size; 727 unsigned long axis_alignment; 728 729 if (*axis == BMP_ALIGN_CENTER) 730 axis_alignment = panel_picture_delta / 2; 731 else if (*axis < 0) 732 axis_alignment = panel_picture_delta + *axis + 1; 733 else 734 return; 735 736 *axis = max(0, axis_alignment); 737 } 738 #endif 739 740 741 #ifdef CONFIG_LCD_BMP_RLE8 742 743 #define BMP_RLE8_ESCAPE 0 744 #define BMP_RLE8_EOL 0 745 #define BMP_RLE8_EOBMP 1 746 #define BMP_RLE8_DELTA 2 747 748 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 749 int cnt) 750 { 751 while (cnt > 0) { 752 *(*fbp)++ = cmap[*bmap++]; 753 cnt--; 754 } 755 } 756 757 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 758 { 759 ushort *fb = *fbp; 760 int cnt_8copy = cnt >> 3; 761 762 cnt -= cnt_8copy << 3; 763 while (cnt_8copy > 0) { 764 *fb++ = c; 765 *fb++ = c; 766 *fb++ = c; 767 *fb++ = c; 768 *fb++ = c; 769 *fb++ = c; 770 *fb++ = c; 771 *fb++ = c; 772 cnt_8copy--; 773 } 774 while (cnt > 0) { 775 *fb++ = c; 776 cnt--; 777 } 778 *fbp = fb; 779 } 780 781 /* 782 * Do not call this function directly, must be called from lcd_display_bitmap. 783 */ 784 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 785 int x_off, int y_off) 786 { 787 uchar *bmap; 788 ulong width, height; 789 ulong cnt, runlen; 790 int x, y; 791 int decode = 1; 792 793 width = get_unaligned_le32(&bmp->header.width); 794 height = get_unaligned_le32(&bmp->header.height); 795 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 796 797 x = 0; 798 y = height - 1; 799 800 while (decode) { 801 if (bmap[0] == BMP_RLE8_ESCAPE) { 802 switch (bmap[1]) { 803 case BMP_RLE8_EOL: 804 /* end of line */ 805 bmap += 2; 806 x = 0; 807 y--; 808 /* 16bpix, 2-byte per pixel, width should *2 */ 809 fb -= (width * 2 + lcd_line_length); 810 break; 811 case BMP_RLE8_EOBMP: 812 /* end of bitmap */ 813 decode = 0; 814 break; 815 case BMP_RLE8_DELTA: 816 /* delta run */ 817 x += bmap[2]; 818 y -= bmap[3]; 819 /* 16bpix, 2-byte per pixel, x should *2 */ 820 fb = (uchar *) (lcd_base + (y + y_off - 1) 821 * lcd_line_length + (x + x_off) * 2); 822 bmap += 4; 823 break; 824 default: 825 /* unencoded run */ 826 runlen = bmap[1]; 827 bmap += 2; 828 if (y < height) { 829 if (x < width) { 830 if (x + runlen > width) 831 cnt = width - x; 832 else 833 cnt = runlen; 834 draw_unencoded_bitmap( 835 (ushort **)&fb, 836 bmap, cmap, cnt); 837 } 838 x += runlen; 839 } 840 bmap += runlen; 841 if (runlen & 1) 842 bmap++; 843 } 844 } else { 845 /* encoded run */ 846 if (y < height) { 847 runlen = bmap[0]; 848 if (x < width) { 849 /* aggregate the same code */ 850 while (bmap[0] == 0xff && 851 bmap[2] != BMP_RLE8_ESCAPE && 852 bmap[1] == bmap[3]) { 853 runlen += bmap[2]; 854 bmap += 2; 855 } 856 if (x + runlen > width) 857 cnt = width - x; 858 else 859 cnt = runlen; 860 draw_encoded_bitmap((ushort **)&fb, 861 cmap[bmap[1]], cnt); 862 } 863 x += runlen; 864 } 865 bmap += 2; 866 } 867 } 868 } 869 #endif 870 871 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 872 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 873 #else 874 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 875 #endif 876 877 #if defined(CONFIG_BMP_16BPP) 878 #if defined(CONFIG_ATMEL_LCD_BGR555) 879 static inline void fb_put_word(uchar **fb, uchar **from) 880 { 881 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 882 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 883 *from += 2; 884 } 885 #else 886 static inline void fb_put_word(uchar **fb, uchar **from) 887 { 888 *(*fb)++ = *(*from)++; 889 *(*fb)++ = *(*from)++; 890 } 891 #endif 892 #endif /* CONFIG_BMP_16BPP */ 893 894 int lcd_display_bitmap(ulong bmp_image, int x, int y) 895 { 896 #if !defined(CONFIG_MCC200) 897 ushort *cmap = NULL; 898 #endif 899 ushort *cmap_base = NULL; 900 ushort i, j; 901 uchar *fb; 902 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 903 uchar *bmap; 904 ushort padded_width; 905 unsigned long width, height, byte_width; 906 unsigned long pwidth = panel_info.vl_col; 907 unsigned colors, bpix, bmp_bpix; 908 909 if (!bmp || !(bmp->header.signature[0] == 'B' && 910 bmp->header.signature[1] == 'M')) { 911 printf("Error: no valid bmp image at %lx\n", bmp_image); 912 913 return 1; 914 } 915 916 width = get_unaligned_le32(&bmp->header.width); 917 height = get_unaligned_le32(&bmp->header.height); 918 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 919 920 colors = 1 << bmp_bpix; 921 922 bpix = NBITS(panel_info.vl_bpix); 923 924 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 925 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 926 bpix, bmp_bpix); 927 928 return 1; 929 } 930 931 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 932 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 933 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 934 bpix, get_unaligned_le16(&bmp->header.bit_count)); 935 return 1; 936 } 937 938 debug("Display-bmp: %d x %d with %d colors\n", 939 (int)width, (int)height, (int)colors); 940 941 #if !defined(CONFIG_MCC200) 942 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 943 if (bmp_bpix == 8) { 944 cmap = configuration_get_cmap(); 945 cmap_base = cmap; 946 947 /* Set color map */ 948 for (i = 0; i < colors; ++i) { 949 bmp_color_table_entry_t cte = bmp->color_table[i]; 950 #if !defined(CONFIG_ATMEL_LCD) 951 ushort colreg = 952 ( ((cte.red) << 8) & 0xf800) | 953 ( ((cte.green) << 3) & 0x07e0) | 954 ( ((cte.blue) >> 3) & 0x001f) ; 955 #ifdef CONFIG_SYS_INVERT_COLORS 956 *cmap = 0xffff - colreg; 957 #else 958 *cmap = colreg; 959 #endif 960 #if defined(CONFIG_MPC823) 961 cmap--; 962 #else 963 cmap++; 964 #endif 965 #else /* CONFIG_ATMEL_LCD */ 966 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 967 #endif 968 } 969 } 970 #endif 971 /* 972 * BMP format for Monochrome assumes that the state of a 973 * pixel is described on a per Bit basis, not per Byte. 974 * So, in case of Monochrome BMP we should align widths 975 * on a byte boundary and convert them from Bit to Byte 976 * units. 977 * Probably, PXA250 and MPC823 process 1bpp BMP images in 978 * their own ways, so make the converting to be MCC200 979 * specific. 980 */ 981 #if defined(CONFIG_MCC200) 982 if (bpix == 1) { 983 width = ((width + 7) & ~7) >> 3; 984 x = ((x + 7) & ~7) >> 3; 985 pwidth= ((pwidth + 7) & ~7) >> 3; 986 } 987 #endif 988 989 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 990 991 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 992 splash_align_axis(&x, pwidth, width); 993 splash_align_axis(&y, panel_info.vl_row, height); 994 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 995 996 if ((x + width) > pwidth) 997 width = pwidth - x; 998 if ((y + height) > panel_info.vl_row) 999 height = panel_info.vl_row - y; 1000 1001 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 1002 fb = (uchar *)(lcd_base + 1003 (y + height - 1) * lcd_line_length + x * bpix / 8); 1004 1005 switch (bmp_bpix) { 1006 case 1: /* pass through */ 1007 case 8: 1008 #ifdef CONFIG_LCD_BMP_RLE8 1009 u32 compression = get_unaligned_le32(&bmp->header.compression); 1010 if (compression == BMP_BI_RLE8) { 1011 if (bpix != 16) { 1012 /* TODO implement render code for bpix != 16 */ 1013 printf("Error: only support 16 bpix"); 1014 return 1; 1015 } 1016 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1017 break; 1018 } 1019 #endif 1020 1021 if (bpix != 16) 1022 byte_width = width; 1023 else 1024 byte_width = width * 2; 1025 1026 for (i = 0; i < height; ++i) { 1027 WATCHDOG_RESET(); 1028 for (j = 0; j < width; j++) { 1029 if (bpix != 16) { 1030 FB_PUT_BYTE(fb, bmap); 1031 } else { 1032 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1033 fb += sizeof(uint16_t) / sizeof(*fb); 1034 } 1035 } 1036 bmap += (padded_width - width); 1037 fb -= byte_width + lcd_line_length; 1038 } 1039 break; 1040 1041 #if defined(CONFIG_BMP_16BPP) 1042 case 16: 1043 for (i = 0; i < height; ++i) { 1044 WATCHDOG_RESET(); 1045 for (j = 0; j < width; j++) 1046 fb_put_word(&fb, &bmap); 1047 1048 bmap += (padded_width - width) * 2; 1049 fb -= width * 2 + lcd_line_length; 1050 } 1051 break; 1052 #endif /* CONFIG_BMP_16BPP */ 1053 1054 #if defined(CONFIG_BMP_32BPP) 1055 case 32: 1056 for (i = 0; i < height; ++i) { 1057 for (j = 0; j < width; j++) { 1058 *(fb++) = *(bmap++); 1059 *(fb++) = *(bmap++); 1060 *(fb++) = *(bmap++); 1061 *(fb++) = *(bmap++); 1062 } 1063 fb -= lcd_line_length + width * (bpix / 8); 1064 } 1065 break; 1066 #endif /* CONFIG_BMP_32BPP */ 1067 default: 1068 break; 1069 }; 1070 1071 lcd_sync(); 1072 return 0; 1073 } 1074 #endif 1075 1076 static void *lcd_logo(void) 1077 { 1078 #ifdef CONFIG_SPLASH_SCREEN 1079 char *s; 1080 ulong addr; 1081 static int do_splash = 1; 1082 1083 if (do_splash && (s = getenv("splashimage")) != NULL) { 1084 int x = 0, y = 0; 1085 do_splash = 0; 1086 1087 if (splash_screen_prepare()) 1088 return (void *)lcd_base; 1089 1090 addr = simple_strtoul (s, NULL, 16); 1091 1092 splash_get_pos(&x, &y); 1093 1094 if (bmp_display(addr, x, y) == 0) 1095 return (void *)lcd_base; 1096 } 1097 #endif /* CONFIG_SPLASH_SCREEN */ 1098 1099 bitmap_plot(0, 0); 1100 1101 #ifdef CONFIG_LCD_INFO 1102 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1103 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1104 lcd_show_board_info(); 1105 #endif /* CONFIG_LCD_INFO */ 1106 1107 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1108 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1109 #else 1110 return (void *)lcd_base; 1111 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1112 } 1113 1114 #ifdef CONFIG_SPLASHIMAGE_GUARD 1115 static int on_splashimage(const char *name, const char *value, enum env_op op, 1116 int flags) 1117 { 1118 ulong addr; 1119 int aligned; 1120 1121 if (op == env_op_delete) 1122 return 0; 1123 1124 addr = simple_strtoul(value, NULL, 16); 1125 /* See README.displaying-bmps */ 1126 aligned = (addr % 4 == 2); 1127 if (!aligned) { 1128 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1129 return -1; 1130 } 1131 1132 return 0; 1133 } 1134 1135 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1136 #endif 1137 1138 void lcd_position_cursor(unsigned col, unsigned row) 1139 { 1140 console_col = min(col, CONSOLE_COLS - 1); 1141 console_row = min(row, CONSOLE_ROWS - 1); 1142 } 1143 1144 int lcd_get_pixel_width(void) 1145 { 1146 return panel_info.vl_col; 1147 } 1148 1149 int lcd_get_pixel_height(void) 1150 { 1151 return panel_info.vl_row; 1152 } 1153 1154 int lcd_get_screen_rows(void) 1155 { 1156 return CONSOLE_ROWS; 1157 } 1158 1159 int lcd_get_screen_columns(void) 1160 { 1161 return CONSOLE_COLS; 1162 } 1163 1164 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1165 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1166 { 1167 u32 stride; 1168 fdt32_t cells[2]; 1169 int ret; 1170 static const char format[] = 1171 #if LCD_BPP == LCD_COLOR16 1172 "r5g6b5"; 1173 #else 1174 ""; 1175 #endif 1176 1177 if (!format[0]) 1178 return -1; 1179 1180 stride = panel_info.vl_col * 2; 1181 1182 cells[0] = cpu_to_fdt32(gd->fb_base); 1183 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); 1184 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); 1185 if (ret < 0) 1186 return -1; 1187 1188 cells[0] = cpu_to_fdt32(panel_info.vl_col); 1189 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); 1190 if (ret < 0) 1191 return -1; 1192 1193 cells[0] = cpu_to_fdt32(panel_info.vl_row); 1194 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); 1195 if (ret < 0) 1196 return -1; 1197 1198 cells[0] = cpu_to_fdt32(stride); 1199 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); 1200 if (ret < 0) 1201 return -1; 1202 1203 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); 1204 if (ret < 0) 1205 return -1; 1206 1207 ret = fdt_delprop(blob, off, "status"); 1208 if (ret < 0) 1209 return -1; 1210 1211 return 0; 1212 } 1213 1214 int lcd_dt_simplefb_add_node(void *blob) 1215 { 1216 static const char compat[] = "simple-framebuffer"; 1217 static const char disabled[] = "disabled"; 1218 int off, ret; 1219 1220 off = fdt_add_subnode(blob, 0, "framebuffer"); 1221 if (off < 0) 1222 return -1; 1223 1224 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1225 if (ret < 0) 1226 return -1; 1227 1228 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1229 if (ret < 0) 1230 return -1; 1231 1232 return lcd_dt_simplefb_configure_node(blob, off); 1233 } 1234 1235 int lcd_dt_simplefb_enable_existing_node(void *blob) 1236 { 1237 int off; 1238 1239 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1240 if (off < 0) 1241 return -1; 1242 1243 return lcd_dt_simplefb_configure_node(blob, off); 1244 } 1245 #endif 1246