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 * See file CREDITS for list of people who contributed to this 8 * project. 9 * 10 * This program is free software; you can redistribute it and/or 11 * modify it under the terms of the GNU General Public License as 12 * published by the Free Software Foundation; either version 2 of 13 * the License, or (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 23 * MA 02111-1307 USA 24 */ 25 26 /************************************************************************/ 27 /* ** HEADER FILES */ 28 /************************************************************************/ 29 30 /* #define DEBUG */ 31 32 #include <config.h> 33 #include <common.h> 34 #include <command.h> 35 #include <stdarg.h> 36 #include <search.h> 37 #include <env_callback.h> 38 #include <linux/types.h> 39 #include <stdio_dev.h> 40 #if defined(CONFIG_POST) 41 #include <post.h> 42 #endif 43 #include <lcd.h> 44 #include <watchdog.h> 45 46 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 47 defined(CONFIG_CPU_MONAHANS) 48 #define CONFIG_CPU_PXA 49 #include <asm/byteorder.h> 50 #endif 51 52 #if defined(CONFIG_MPC823) 53 #include <lcdvideo.h> 54 #endif 55 56 #if defined(CONFIG_ATMEL_LCD) 57 #include <atmel_lcdc.h> 58 #endif 59 60 /************************************************************************/ 61 /* ** FONT DATA */ 62 /************************************************************************/ 63 #include <video_font.h> /* Get font data, width and height */ 64 #include <video_font_data.h> 65 66 /************************************************************************/ 67 /* ** LOGO DATA */ 68 /************************************************************************/ 69 #ifdef CONFIG_LCD_LOGO 70 # include <bmp_logo.h> /* Get logo data, width and height */ 71 # include <bmp_logo_data.h> 72 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 73 # error Default Color Map overlaps with Logo Color Map 74 # endif 75 #endif 76 77 #ifndef CONFIG_LCD_ALIGNMENT 78 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 79 #endif 80 81 /* By default we scroll by a single line */ 82 #ifndef CONFIG_CONSOLE_SCROLL_LINES 83 #define CONFIG_CONSOLE_SCROLL_LINES 1 84 #endif 85 86 DECLARE_GLOBAL_DATA_PTR; 87 88 ulong lcd_setmem (ulong addr); 89 90 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 91 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 92 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 93 94 static int lcd_init(void *lcdbase); 95 96 static void *lcd_logo (void); 97 98 static int lcd_getbgcolor(void); 99 static void lcd_setfgcolor(int color); 100 static void lcd_setbgcolor(int color); 101 102 static int lcd_color_fg; 103 static int lcd_color_bg; 104 105 char lcd_is_enabled = 0; 106 107 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 108 109 110 #ifdef NOT_USED_SO_FAR 111 static void lcd_getcolreg(ushort regno, 112 ushort *red, ushort *green, ushort *blue); 113 static int lcd_getfgcolor(void); 114 #endif /* NOT_USED_SO_FAR */ 115 116 /************************************************************************/ 117 118 /* Flush LCD activity to the caches */ 119 void lcd_sync(void) 120 { 121 /* 122 * flush_dcache_range() is declared in common.h but it seems that some 123 * architectures do not actually implement it. Is there a way to find 124 * out whether it exists? For now, ARM is safe. 125 */ 126 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 127 int line_length; 128 129 if (lcd_flush_dcache) 130 flush_dcache_range((u32)lcd_base, 131 (u32)(lcd_base + lcd_get_size(&line_length))); 132 #endif 133 } 134 135 void lcd_set_flush_dcache(int flush) 136 { 137 lcd_flush_dcache = (flush != 0); 138 } 139 140 /*----------------------------------------------------------------------*/ 141 142 static void console_scrollup(void) 143 { 144 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 145 146 /* Copy up rows ignoring those that will be overwritten */ 147 memcpy(CONSOLE_ROW_FIRST, 148 lcd_console_address + CONSOLE_ROW_SIZE * rows, 149 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 150 151 /* Clear the last rows */ 152 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 153 COLOR_MASK(lcd_color_bg), 154 CONSOLE_ROW_SIZE * rows); 155 156 lcd_sync(); 157 console_row -= rows; 158 } 159 160 /*----------------------------------------------------------------------*/ 161 162 static inline void console_back(void) 163 { 164 if (--console_col < 0) { 165 console_col = CONSOLE_COLS-1 ; 166 if (--console_row < 0) { 167 console_row = 0; 168 } 169 } 170 171 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 172 console_row * VIDEO_FONT_HEIGHT, ' '); 173 } 174 175 /*----------------------------------------------------------------------*/ 176 177 static inline void console_newline(void) 178 { 179 ++console_row; 180 console_col = 0; 181 182 /* Check if we need to scroll the terminal */ 183 if (console_row >= CONSOLE_ROWS) { 184 /* Scroll everything up */ 185 console_scrollup(); 186 } else { 187 lcd_sync(); 188 } 189 } 190 191 /*----------------------------------------------------------------------*/ 192 193 void lcd_putc(const char c) 194 { 195 if (!lcd_is_enabled) { 196 serial_putc(c); 197 198 return; 199 } 200 201 switch (c) { 202 case '\r': 203 console_col = 0; 204 205 return; 206 case '\n': 207 console_newline(); 208 209 return; 210 case '\t': /* Tab (8 chars alignment) */ 211 console_col += 8; 212 console_col &= ~7; 213 214 if (console_col >= CONSOLE_COLS) 215 console_newline(); 216 217 return; 218 case '\b': 219 console_back(); 220 221 return; 222 default: 223 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 224 console_row * VIDEO_FONT_HEIGHT, c); 225 if (++console_col >= CONSOLE_COLS) 226 console_newline(); 227 } 228 } 229 230 /*----------------------------------------------------------------------*/ 231 232 void lcd_puts(const char *s) 233 { 234 if (!lcd_is_enabled) { 235 serial_puts(s); 236 237 return; 238 } 239 240 while (*s) { 241 lcd_putc(*s++); 242 } 243 lcd_sync(); 244 } 245 246 /*----------------------------------------------------------------------*/ 247 248 void lcd_printf(const char *fmt, ...) 249 { 250 va_list args; 251 char buf[CONFIG_SYS_PBSIZE]; 252 253 va_start(args, fmt); 254 vsprintf(buf, fmt, args); 255 va_end(args); 256 257 lcd_puts(buf); 258 } 259 260 /************************************************************************/ 261 /* ** Low-Level Graphics Routines */ 262 /************************************************************************/ 263 264 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 265 { 266 uchar *dest; 267 ushort row; 268 269 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 270 y += BMP_LOGO_HEIGHT; 271 #endif 272 273 #if LCD_BPP == LCD_MONOCHROME 274 ushort off = x * (1 << LCD_BPP) % 8; 275 #endif 276 277 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 278 279 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 280 uchar *s = str; 281 int i; 282 #if LCD_BPP == LCD_COLOR16 283 ushort *d = (ushort *)dest; 284 #else 285 uchar *d = dest; 286 #endif 287 288 #if LCD_BPP == LCD_MONOCHROME 289 uchar rest = *d & -(1 << (8-off)); 290 uchar sym; 291 #endif 292 for (i = 0; i < count; ++i) { 293 uchar c, bits; 294 295 c = *s++; 296 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 297 298 #if LCD_BPP == LCD_MONOCHROME 299 sym = (COLOR_MASK(lcd_color_fg) & bits) | 300 (COLOR_MASK(lcd_color_bg) & ~bits); 301 302 *d++ = rest | (sym >> off); 303 rest = sym << (8-off); 304 #elif LCD_BPP == LCD_COLOR8 305 for (c = 0; c < 8; ++c) { 306 *d++ = (bits & 0x80) ? 307 lcd_color_fg : lcd_color_bg; 308 bits <<= 1; 309 } 310 #elif LCD_BPP == LCD_COLOR16 311 for (c = 0; c < 8; ++c) { 312 *d++ = (bits & 0x80) ? 313 lcd_color_fg : lcd_color_bg; 314 bits <<= 1; 315 } 316 #endif 317 } 318 #if LCD_BPP == LCD_MONOCHROME 319 *d = rest | (*d & ((1 << (8-off)) - 1)); 320 #endif 321 } 322 } 323 324 /*----------------------------------------------------------------------*/ 325 326 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 327 { 328 lcd_drawchars(x, y, s, strlen((char *)s)); 329 } 330 331 /*----------------------------------------------------------------------*/ 332 333 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 334 { 335 lcd_drawchars(x, y, &c, 1); 336 } 337 338 /************************************************************************/ 339 /** Small utility to check that you got the colours right */ 340 /************************************************************************/ 341 #ifdef LCD_TEST_PATTERN 342 343 #define N_BLK_VERT 2 344 #define N_BLK_HOR 3 345 346 static int test_colors[N_BLK_HOR*N_BLK_VERT] = { 347 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 348 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 349 }; 350 351 static void test_pattern(void) 352 { 353 ushort v_max = panel_info.vl_row; 354 ushort h_max = panel_info.vl_col; 355 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 356 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 357 ushort v, h; 358 uchar *pix = (uchar *)lcd_base; 359 360 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 361 h_max, v_max, h_step, v_step); 362 363 /* WARNING: Code silently assumes 8bit/pixel */ 364 for (v = 0; v < v_max; ++v) { 365 uchar iy = v / v_step; 366 for (h = 0; h < h_max; ++h) { 367 uchar ix = N_BLK_HOR * iy + (h/h_step); 368 *pix++ = test_colors[ix]; 369 } 370 } 371 } 372 #endif /* LCD_TEST_PATTERN */ 373 374 375 /************************************************************************/ 376 /* ** GENERIC Initialization Routines */ 377 /************************************************************************/ 378 379 int lcd_get_size(int *line_length) 380 { 381 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 382 return *line_length * panel_info.vl_row; 383 } 384 385 int drv_lcd_init (void) 386 { 387 struct stdio_dev lcddev; 388 int rc; 389 390 lcd_base = (void *)(gd->fb_base); 391 392 lcd_get_size(&lcd_line_length); 393 394 lcd_init(lcd_base); /* LCD initialization */ 395 396 /* Device initialization */ 397 memset(&lcddev, 0, sizeof(lcddev)); 398 399 strcpy(lcddev.name, "lcd"); 400 lcddev.ext = 0; /* No extensions */ 401 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 402 lcddev.putc = lcd_putc; /* 'putc' function */ 403 lcddev.puts = lcd_puts; /* 'puts' function */ 404 405 rc = stdio_register (&lcddev); 406 407 return (rc == 0) ? 1 : rc; 408 } 409 410 /*----------------------------------------------------------------------*/ 411 void lcd_clear(void) 412 { 413 #if LCD_BPP == LCD_MONOCHROME 414 /* Setting the palette */ 415 lcd_initcolregs(); 416 417 #elif LCD_BPP == LCD_COLOR8 418 /* Setting the palette */ 419 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 420 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 421 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 422 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 423 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 424 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 425 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 426 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 427 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 428 #endif 429 430 #ifndef CONFIG_SYS_WHITE_ON_BLACK 431 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 432 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 433 #else 434 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 435 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 436 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 437 438 #ifdef LCD_TEST_PATTERN 439 test_pattern(); 440 #else 441 /* set framebuffer to background color */ 442 memset((char *)lcd_base, 443 COLOR_MASK(lcd_getbgcolor()), 444 lcd_line_length*panel_info.vl_row); 445 #endif 446 /* Paint the logo and retrieve LCD base address */ 447 debug("[LCD] Drawing the logo...\n"); 448 lcd_console_address = lcd_logo (); 449 450 console_col = 0; 451 console_row = 0; 452 lcd_sync(); 453 } 454 455 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 456 char *const argv[]) 457 { 458 lcd_clear(); 459 return 0; 460 } 461 462 U_BOOT_CMD( 463 cls, 1, 1, do_lcd_clear, 464 "clear screen", 465 "" 466 ); 467 468 /*----------------------------------------------------------------------*/ 469 470 static int lcd_init(void *lcdbase) 471 { 472 /* Initialize the lcd controller */ 473 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 474 475 lcd_ctrl_init(lcdbase); 476 lcd_is_enabled = 1; 477 lcd_clear(); 478 lcd_enable (); 479 480 /* Initialize the console */ 481 console_col = 0; 482 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 483 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 484 #else 485 console_row = 1; /* leave 1 blank line below logo */ 486 #endif 487 488 return 0; 489 } 490 491 492 /************************************************************************/ 493 /* ** ROM capable initialization part - needed to reserve FB memory */ 494 /************************************************************************/ 495 /* 496 * This is called early in the system initialization to grab memory 497 * for the LCD controller. 498 * Returns new address for monitor, after reserving LCD buffer memory 499 * 500 * Note that this is running from ROM, so no write access to global data. 501 */ 502 ulong lcd_setmem(ulong addr) 503 { 504 ulong size; 505 int line_length; 506 507 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 508 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 509 510 size = lcd_get_size(&line_length); 511 512 /* Round up to nearest full page, or MMU section if defined */ 513 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 514 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 515 516 /* Allocate pages for the frame buffer. */ 517 addr -= size; 518 519 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr); 520 521 return addr; 522 } 523 524 /*----------------------------------------------------------------------*/ 525 526 static void lcd_setfgcolor(int color) 527 { 528 lcd_color_fg = color; 529 } 530 531 /*----------------------------------------------------------------------*/ 532 533 static void lcd_setbgcolor(int color) 534 { 535 lcd_color_bg = color; 536 } 537 538 /*----------------------------------------------------------------------*/ 539 540 int lcd_getfgcolor(void) 541 { 542 return lcd_color_fg; 543 } 544 545 /*----------------------------------------------------------------------*/ 546 547 static int lcd_getbgcolor(void) 548 { 549 return lcd_color_bg; 550 } 551 552 /*----------------------------------------------------------------------*/ 553 554 /************************************************************************/ 555 /* ** Chipset depending Bitmap / Logo stuff... */ 556 /************************************************************************/ 557 static inline ushort *configuration_get_cmap(void) 558 { 559 #if defined CONFIG_CPU_PXA 560 struct pxafb_info *fbi = &panel_info.pxa; 561 return (ushort *)fbi->palette; 562 #elif defined(CONFIG_MPC823) 563 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 564 cpm8xx_t *cp = &(immr->im_cpm); 565 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 566 #elif defined(CONFIG_ATMEL_LCD) 567 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 568 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 569 return panel_info.cmap; 570 #else 571 #if defined(CONFIG_LCD_LOGO) 572 return bmp_logo_palette; 573 #else 574 return NULL; 575 #endif 576 #endif 577 } 578 579 #ifdef CONFIG_LCD_LOGO 580 void bitmap_plot(int x, int y) 581 { 582 #ifdef CONFIG_ATMEL_LCD 583 uint *cmap = (uint *)bmp_logo_palette; 584 #else 585 ushort *cmap = (ushort *)bmp_logo_palette; 586 #endif 587 ushort i, j; 588 uchar *bmap; 589 uchar *fb; 590 ushort *fb16; 591 #if defined(CONFIG_MPC823) 592 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 593 cpm8xx_t *cp = &(immr->im_cpm); 594 #endif 595 596 debug("Logo: width %d height %d colors %d cmap %d\n", 597 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 598 ARRAY_SIZE(bmp_logo_palette)); 599 600 bmap = &bmp_logo_bitmap[0]; 601 fb = (uchar *)(lcd_base + y * lcd_line_length + x); 602 603 if (NBITS(panel_info.vl_bpix) < 12) { 604 /* Leave room for default color map 605 * default case: generic system with no cmap (most likely 16bpp) 606 * cmap was set to the source palette, so no change is done. 607 * This avoids even more ifdefs in the next stanza 608 */ 609 #if defined(CONFIG_MPC823) 610 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 611 #elif defined(CONFIG_ATMEL_LCD) 612 cmap = (uint *)configuration_get_cmap(); 613 #else 614 cmap = configuration_get_cmap(); 615 #endif 616 617 WATCHDOG_RESET(); 618 619 /* Set color map */ 620 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 621 ushort colreg = bmp_logo_palette[i]; 622 #ifdef CONFIG_ATMEL_LCD 623 uint lut_entry; 624 #ifdef CONFIG_ATMEL_LCD_BGR555 625 lut_entry = ((colreg & 0x000F) << 11) | 626 ((colreg & 0x00F0) << 2) | 627 ((colreg & 0x0F00) >> 7); 628 #else /* CONFIG_ATMEL_LCD_RGB565 */ 629 lut_entry = ((colreg & 0x000F) << 1) | 630 ((colreg & 0x00F0) << 3) | 631 ((colreg & 0x0F00) << 4); 632 #endif 633 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 634 cmap++; 635 #else /* !CONFIG_ATMEL_LCD */ 636 #ifdef CONFIG_SYS_INVERT_COLORS 637 *cmap++ = 0xffff - colreg; 638 #else 639 *cmap++ = colreg; 640 #endif 641 #endif /* CONFIG_ATMEL_LCD */ 642 } 643 644 WATCHDOG_RESET(); 645 646 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 647 memcpy(fb, bmap, BMP_LOGO_WIDTH); 648 bmap += BMP_LOGO_WIDTH; 649 fb += panel_info.vl_col; 650 } 651 } 652 else { /* true color mode */ 653 u16 col16; 654 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x); 655 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 656 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 657 col16 = bmp_logo_palette[(bmap[j]-16)]; 658 fb16[j] = 659 ((col16 & 0x000F) << 1) | 660 ((col16 & 0x00F0) << 3) | 661 ((col16 & 0x0F00) << 4); 662 } 663 bmap += BMP_LOGO_WIDTH; 664 fb16 += panel_info.vl_col; 665 } 666 } 667 668 WATCHDOG_RESET(); 669 lcd_sync(); 670 } 671 #else 672 static inline void bitmap_plot(int x, int y) {} 673 #endif /* CONFIG_LCD_LOGO */ 674 675 /*----------------------------------------------------------------------*/ 676 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 677 /* 678 * Display the BMP file located at address bmp_image. 679 * Only uncompressed. 680 */ 681 682 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 683 #define BMP_ALIGN_CENTER 0x7FFF 684 685 static void splash_align_axis(int *axis, unsigned long panel_size, 686 unsigned long picture_size) 687 { 688 unsigned long panel_picture_delta = panel_size - picture_size; 689 unsigned long axis_alignment; 690 691 if (*axis == BMP_ALIGN_CENTER) 692 axis_alignment = panel_picture_delta / 2; 693 else if (*axis < 0) 694 axis_alignment = panel_picture_delta + *axis + 1; 695 else 696 return; 697 698 *axis = max(0, axis_alignment); 699 } 700 #endif 701 702 703 #ifdef CONFIG_LCD_BMP_RLE8 704 705 #define BMP_RLE8_ESCAPE 0 706 #define BMP_RLE8_EOL 0 707 #define BMP_RLE8_EOBMP 1 708 #define BMP_RLE8_DELTA 2 709 710 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 711 int cnt) 712 { 713 while (cnt > 0) { 714 *(*fbp)++ = cmap[*bmap++]; 715 cnt--; 716 } 717 } 718 719 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 720 { 721 ushort *fb = *fbp; 722 int cnt_8copy = cnt >> 3; 723 724 cnt -= cnt_8copy << 3; 725 while (cnt_8copy > 0) { 726 *fb++ = c; 727 *fb++ = c; 728 *fb++ = c; 729 *fb++ = c; 730 *fb++ = c; 731 *fb++ = c; 732 *fb++ = c; 733 *fb++ = c; 734 cnt_8copy--; 735 } 736 while (cnt > 0) { 737 *fb++ = c; 738 cnt--; 739 } 740 (*fbp) = fb; 741 } 742 743 /* 744 * Do not call this function directly, must be called from 745 * lcd_display_bitmap. 746 */ 747 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 748 int x_off, int y_off) 749 { 750 uchar *bmap; 751 ulong width, height; 752 ulong cnt, runlen; 753 int x, y; 754 int decode = 1; 755 756 width = le32_to_cpu(bmp->header.width); 757 height = le32_to_cpu(bmp->header.height); 758 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 759 760 x = 0; 761 y = height - 1; 762 763 while (decode) { 764 if (bmap[0] == BMP_RLE8_ESCAPE) { 765 switch (bmap[1]) { 766 case BMP_RLE8_EOL: 767 /* end of line */ 768 bmap += 2; 769 x = 0; 770 y--; 771 /* 16bpix, 2-byte per pixel, width should *2 */ 772 fb -= (width * 2 + lcd_line_length); 773 break; 774 case BMP_RLE8_EOBMP: 775 /* end of bitmap */ 776 decode = 0; 777 break; 778 case BMP_RLE8_DELTA: 779 /* delta run */ 780 x += bmap[2]; 781 y -= bmap[3]; 782 /* 16bpix, 2-byte per pixel, x should *2 */ 783 fb = (uchar *) (lcd_base + (y + y_off - 1) 784 * lcd_line_length + (x + x_off) * 2); 785 bmap += 4; 786 break; 787 default: 788 /* unencoded run */ 789 runlen = bmap[1]; 790 bmap += 2; 791 if (y < height) { 792 if (x < width) { 793 if (x + runlen > width) 794 cnt = width - x; 795 else 796 cnt = runlen; 797 draw_unencoded_bitmap( 798 (ushort **)&fb, 799 bmap, cmap, cnt); 800 } 801 x += runlen; 802 } 803 bmap += runlen; 804 if (runlen & 1) 805 bmap++; 806 } 807 } else { 808 /* encoded run */ 809 if (y < height) { 810 runlen = bmap[0]; 811 if (x < width) { 812 /* aggregate the same code */ 813 while (bmap[0] == 0xff && 814 bmap[2] != BMP_RLE8_ESCAPE && 815 bmap[1] == bmap[3]) { 816 runlen += bmap[2]; 817 bmap += 2; 818 } 819 if (x + runlen > width) 820 cnt = width - x; 821 else 822 cnt = runlen; 823 draw_encoded_bitmap((ushort **)&fb, 824 cmap[bmap[1]], cnt); 825 } 826 x += runlen; 827 } 828 bmap += 2; 829 } 830 } 831 } 832 #endif 833 834 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 835 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 836 #else 837 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 838 #endif 839 840 #if defined(CONFIG_BMP_16BPP) 841 #if defined(CONFIG_ATMEL_LCD_BGR555) 842 static inline void fb_put_word(uchar **fb, uchar **from) 843 { 844 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 845 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 846 *from += 2; 847 } 848 #else 849 static inline void fb_put_word(uchar **fb, uchar **from) 850 { 851 *(*fb)++ = *(*from)++; 852 *(*fb)++ = *(*from)++; 853 } 854 #endif 855 #endif /* CONFIG_BMP_16BPP */ 856 857 int lcd_display_bitmap(ulong bmp_image, int x, int y) 858 { 859 #if !defined(CONFIG_MCC200) 860 ushort *cmap = NULL; 861 #endif 862 ushort *cmap_base = NULL; 863 ushort i, j; 864 uchar *fb; 865 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 866 uchar *bmap; 867 ushort padded_width; 868 unsigned long width, height, byte_width; 869 unsigned long pwidth = panel_info.vl_col; 870 unsigned colors, bpix, bmp_bpix; 871 872 if (!bmp || !((bmp->header.signature[0] == 'B') && 873 (bmp->header.signature[1] == 'M'))) { 874 printf("Error: no valid bmp image at %lx\n", bmp_image); 875 876 return 1; 877 } 878 879 width = le32_to_cpu(bmp->header.width); 880 height = le32_to_cpu(bmp->header.height); 881 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 882 colors = 1 << bmp_bpix; 883 884 bpix = NBITS(panel_info.vl_bpix); 885 886 if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) { 887 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 888 bpix, bmp_bpix); 889 890 return 1; 891 } 892 893 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 894 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 895 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 896 bpix, 897 le16_to_cpu(bmp->header.bit_count)); 898 899 return 1; 900 } 901 902 debug("Display-bmp: %d x %d with %d colors\n", 903 (int)width, (int)height, (int)colors); 904 905 #if !defined(CONFIG_MCC200) 906 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 907 if (bmp_bpix == 8) { 908 cmap = configuration_get_cmap(); 909 cmap_base = cmap; 910 911 /* Set color map */ 912 for (i = 0; i < colors; ++i) { 913 bmp_color_table_entry_t cte = bmp->color_table[i]; 914 #if !defined(CONFIG_ATMEL_LCD) 915 ushort colreg = 916 ( ((cte.red) << 8) & 0xf800) | 917 ( ((cte.green) << 3) & 0x07e0) | 918 ( ((cte.blue) >> 3) & 0x001f) ; 919 #ifdef CONFIG_SYS_INVERT_COLORS 920 *cmap = 0xffff - colreg; 921 #else 922 *cmap = colreg; 923 #endif 924 #if defined(CONFIG_MPC823) 925 cmap--; 926 #else 927 cmap++; 928 #endif 929 #else /* CONFIG_ATMEL_LCD */ 930 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 931 #endif 932 } 933 } 934 #endif 935 936 /* 937 * BMP format for Monochrome assumes that the state of a 938 * pixel is described on a per Bit basis, not per Byte. 939 * So, in case of Monochrome BMP we should align widths 940 * on a byte boundary and convert them from Bit to Byte 941 * units. 942 * Probably, PXA250 and MPC823 process 1bpp BMP images in 943 * their own ways, so make the converting to be MCC200 944 * specific. 945 */ 946 #if defined(CONFIG_MCC200) 947 if (bpix == 1) { 948 width = ((width + 7) & ~7) >> 3; 949 x = ((x + 7) & ~7) >> 3; 950 pwidth= ((pwidth + 7) & ~7) >> 3; 951 } 952 #endif 953 954 padded_width = (width&0x3) ? ((width&~0x3)+4) : (width); 955 956 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 957 splash_align_axis(&x, pwidth, width); 958 splash_align_axis(&y, panel_info.vl_row, height); 959 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 960 961 if ((x + width) > pwidth) 962 width = pwidth - x; 963 if ((y + height) > panel_info.vl_row) 964 height = panel_info.vl_row - y; 965 966 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 967 fb = (uchar *) (lcd_base + 968 (y + height - 1) * lcd_line_length + x * bpix / 8); 969 970 switch (bmp_bpix) { 971 case 1: /* pass through */ 972 case 8: 973 #ifdef CONFIG_LCD_BMP_RLE8 974 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 975 if (bpix != 16) { 976 /* TODO implement render code for bpix != 16 */ 977 printf("Error: only support 16 bpix"); 978 return 1; 979 } 980 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 981 break; 982 } 983 #endif 984 985 if (bpix != 16) 986 byte_width = width; 987 else 988 byte_width = width * 2; 989 990 for (i = 0; i < height; ++i) { 991 WATCHDOG_RESET(); 992 for (j = 0; j < width; j++) { 993 if (bpix != 16) { 994 FB_PUT_BYTE(fb, bmap); 995 } else { 996 *(uint16_t *)fb = cmap_base[*(bmap++)]; 997 fb += sizeof(uint16_t) / sizeof(*fb); 998 } 999 } 1000 bmap += (padded_width - width); 1001 fb -= (byte_width + lcd_line_length); 1002 } 1003 break; 1004 1005 #if defined(CONFIG_BMP_16BPP) 1006 case 16: 1007 for (i = 0; i < height; ++i) { 1008 WATCHDOG_RESET(); 1009 for (j = 0; j < width; j++) 1010 fb_put_word(&fb, &bmap); 1011 1012 bmap += (padded_width - width) * 2; 1013 fb -= (width * 2 + lcd_line_length); 1014 } 1015 break; 1016 #endif /* CONFIG_BMP_16BPP */ 1017 1018 #if defined(CONFIG_BMP_32BPP) 1019 case 32: 1020 for (i = 0; i < height; ++i) { 1021 for (j = 0; j < width; j++) { 1022 *(fb++) = *(bmap++); 1023 *(fb++) = *(bmap++); 1024 *(fb++) = *(bmap++); 1025 *(fb++) = *(bmap++); 1026 } 1027 fb -= (lcd_line_length + width * (bpix / 8)); 1028 } 1029 break; 1030 #endif /* CONFIG_BMP_32BPP */ 1031 default: 1032 break; 1033 }; 1034 1035 lcd_sync(); 1036 return 0; 1037 } 1038 #endif 1039 1040 #ifdef CONFIG_SPLASH_SCREEN_PREPARE 1041 static inline int splash_screen_prepare(void) 1042 { 1043 return board_splash_screen_prepare(); 1044 } 1045 #else 1046 static inline int splash_screen_prepare(void) 1047 { 1048 return 0; 1049 } 1050 #endif 1051 1052 static void *lcd_logo(void) 1053 { 1054 #ifdef CONFIG_SPLASH_SCREEN 1055 char *s; 1056 ulong addr; 1057 static int do_splash = 1; 1058 1059 if (do_splash && (s = getenv("splashimage")) != NULL) { 1060 int x = 0, y = 0; 1061 do_splash = 0; 1062 1063 if (splash_screen_prepare()) 1064 return (void *)gd->fb_base; 1065 1066 addr = simple_strtoul (s, NULL, 16); 1067 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 1068 s = getenv("splashpos"); 1069 if (s != NULL) { 1070 if (s[0] == 'm') 1071 x = BMP_ALIGN_CENTER; 1072 else 1073 x = simple_strtol(s, NULL, 0); 1074 1075 s = strchr(s + 1, ','); 1076 if (s != NULL) { 1077 if (s[1] == 'm') 1078 y = BMP_ALIGN_CENTER; 1079 else 1080 y = simple_strtol (s + 1, NULL, 0); 1081 } 1082 } 1083 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 1084 1085 if (bmp_display(addr, x, y) == 0) 1086 return (void *)lcd_base; 1087 } 1088 #endif /* CONFIG_SPLASH_SCREEN */ 1089 1090 bitmap_plot(0, 0); 1091 1092 #ifdef CONFIG_LCD_INFO 1093 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1094 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1095 lcd_show_board_info(); 1096 #endif /* CONFIG_LCD_INFO */ 1097 1098 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1099 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1100 #else 1101 return (void *)lcd_base; 1102 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */ 1103 } 1104 1105 #ifdef CONFIG_SPLASHIMAGE_GUARD 1106 static int on_splashimage(const char *name, const char *value, enum env_op op, 1107 int flags) 1108 { 1109 ulong addr; 1110 int aligned; 1111 1112 if (op == env_op_delete) 1113 return 0; 1114 1115 addr = simple_strtoul(value, NULL, 16); 1116 /* See README.displaying-bmps */ 1117 aligned = (addr % 4 == 2); 1118 if (!aligned) { 1119 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1120 return -1; 1121 } 1122 1123 return 0; 1124 } 1125 1126 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1127 #endif 1128 1129 void lcd_position_cursor(unsigned col, unsigned row) 1130 { 1131 console_col = min(col, CONSOLE_COLS - 1); 1132 console_row = min(row, CONSOLE_ROWS - 1); 1133 } 1134 1135 int lcd_get_pixel_width(void) 1136 { 1137 return panel_info.vl_col; 1138 } 1139 1140 int lcd_get_pixel_height(void) 1141 { 1142 return panel_info.vl_row; 1143 } 1144 1145 int lcd_get_screen_rows(void) 1146 { 1147 return CONSOLE_ROWS; 1148 } 1149 1150 int lcd_get_screen_columns(void) 1151 { 1152 return CONSOLE_COLS; 1153 } 1154 1155 /************************************************************************/ 1156 /************************************************************************/ 1157