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