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 int lcd_line_length; 105 106 char lcd_is_enabled = 0; 107 108 static short console_col; 109 static short console_row; 110 111 static void *lcd_console_address; 112 static void *lcd_base; /* Start of framebuffer memory */ 113 114 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 115 116 117 #ifdef NOT_USED_SO_FAR 118 static void lcd_getcolreg(ushort regno, 119 ushort *red, ushort *green, ushort *blue); 120 static int lcd_getfgcolor(void); 121 #endif /* NOT_USED_SO_FAR */ 122 123 /************************************************************************/ 124 125 /* Flush LCD activity to the caches */ 126 void lcd_sync(void) 127 { 128 /* 129 * flush_dcache_range() is declared in common.h but it seems that some 130 * architectures do not actually implement it. Is there a way to find 131 * out whether it exists? For now, ARM is safe. 132 */ 133 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 134 int line_length; 135 136 if (lcd_flush_dcache) 137 flush_dcache_range((u32)lcd_base, 138 (u32)(lcd_base + lcd_get_size(&line_length))); 139 #endif 140 } 141 142 void lcd_set_flush_dcache(int flush) 143 { 144 lcd_flush_dcache = (flush != 0); 145 } 146 147 /*----------------------------------------------------------------------*/ 148 149 static void console_scrollup(void) 150 { 151 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 152 153 /* Copy up rows ignoring those that will be overwritten */ 154 memcpy(CONSOLE_ROW_FIRST, 155 lcd_console_address + CONSOLE_ROW_SIZE * rows, 156 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 157 158 /* Clear the last rows */ 159 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 160 COLOR_MASK(lcd_color_bg), 161 CONSOLE_ROW_SIZE * rows); 162 163 lcd_sync(); 164 console_row -= rows; 165 } 166 167 /*----------------------------------------------------------------------*/ 168 169 static inline void console_back(void) 170 { 171 if (--console_col < 0) { 172 console_col = CONSOLE_COLS-1 ; 173 if (--console_row < 0) { 174 console_row = 0; 175 } 176 } 177 178 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 179 console_row * VIDEO_FONT_HEIGHT, ' '); 180 } 181 182 /*----------------------------------------------------------------------*/ 183 184 static inline void console_newline(void) 185 { 186 ++console_row; 187 console_col = 0; 188 189 /* Check if we need to scroll the terminal */ 190 if (console_row >= CONSOLE_ROWS) { 191 /* Scroll everything up */ 192 console_scrollup(); 193 } else { 194 lcd_sync(); 195 } 196 } 197 198 /*----------------------------------------------------------------------*/ 199 200 void lcd_putc(const char c) 201 { 202 if (!lcd_is_enabled) { 203 serial_putc(c); 204 205 return; 206 } 207 208 switch (c) { 209 case '\r': 210 console_col = 0; 211 212 return; 213 case '\n': 214 console_newline(); 215 216 return; 217 case '\t': /* Tab (8 chars alignment) */ 218 console_col += 8; 219 console_col &= ~7; 220 221 if (console_col >= CONSOLE_COLS) 222 console_newline(); 223 224 return; 225 case '\b': 226 console_back(); 227 228 return; 229 default: 230 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 231 console_row * VIDEO_FONT_HEIGHT, c); 232 if (++console_col >= CONSOLE_COLS) 233 console_newline(); 234 } 235 } 236 237 /*----------------------------------------------------------------------*/ 238 239 void lcd_puts(const char *s) 240 { 241 if (!lcd_is_enabled) { 242 serial_puts(s); 243 244 return; 245 } 246 247 while (*s) { 248 lcd_putc(*s++); 249 } 250 lcd_sync(); 251 } 252 253 /*----------------------------------------------------------------------*/ 254 255 void lcd_printf(const char *fmt, ...) 256 { 257 va_list args; 258 char buf[CONFIG_SYS_PBSIZE]; 259 260 va_start(args, fmt); 261 vsprintf(buf, fmt, args); 262 va_end(args); 263 264 lcd_puts(buf); 265 } 266 267 /************************************************************************/ 268 /* ** Low-Level Graphics Routines */ 269 /************************************************************************/ 270 271 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 272 { 273 uchar *dest; 274 ushort row; 275 276 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 277 y += BMP_LOGO_HEIGHT; 278 #endif 279 280 #if LCD_BPP == LCD_MONOCHROME 281 ushort off = x * (1 << LCD_BPP) % 8; 282 #endif 283 284 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 285 286 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 287 uchar *s = str; 288 int i; 289 #if LCD_BPP == LCD_COLOR16 290 ushort *d = (ushort *)dest; 291 #else 292 uchar *d = dest; 293 #endif 294 295 #if LCD_BPP == LCD_MONOCHROME 296 uchar rest = *d & -(1 << (8-off)); 297 uchar sym; 298 #endif 299 for (i = 0; i < count; ++i) { 300 uchar c, bits; 301 302 c = *s++; 303 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 304 305 #if LCD_BPP == LCD_MONOCHROME 306 sym = (COLOR_MASK(lcd_color_fg) & bits) | 307 (COLOR_MASK(lcd_color_bg) & ~bits); 308 309 *d++ = rest | (sym >> off); 310 rest = sym << (8-off); 311 #elif LCD_BPP == LCD_COLOR8 312 for (c = 0; c < 8; ++c) { 313 *d++ = (bits & 0x80) ? 314 lcd_color_fg : lcd_color_bg; 315 bits <<= 1; 316 } 317 #elif LCD_BPP == LCD_COLOR16 318 for (c = 0; c < 8; ++c) { 319 *d++ = (bits & 0x80) ? 320 lcd_color_fg : lcd_color_bg; 321 bits <<= 1; 322 } 323 #endif 324 } 325 #if LCD_BPP == LCD_MONOCHROME 326 *d = rest | (*d & ((1 << (8-off)) - 1)); 327 #endif 328 } 329 } 330 331 /*----------------------------------------------------------------------*/ 332 333 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 334 { 335 lcd_drawchars(x, y, s, strlen((char *)s)); 336 } 337 338 /*----------------------------------------------------------------------*/ 339 340 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 341 { 342 lcd_drawchars(x, y, &c, 1); 343 } 344 345 /************************************************************************/ 346 /** Small utility to check that you got the colours right */ 347 /************************************************************************/ 348 #ifdef LCD_TEST_PATTERN 349 350 #define N_BLK_VERT 2 351 #define N_BLK_HOR 3 352 353 static int test_colors[N_BLK_HOR*N_BLK_VERT] = { 354 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 355 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 356 }; 357 358 static void test_pattern(void) 359 { 360 ushort v_max = panel_info.vl_row; 361 ushort h_max = panel_info.vl_col; 362 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 363 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 364 ushort v, h; 365 uchar *pix = (uchar *)lcd_base; 366 367 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 368 h_max, v_max, h_step, v_step); 369 370 /* WARNING: Code silently assumes 8bit/pixel */ 371 for (v = 0; v < v_max; ++v) { 372 uchar iy = v / v_step; 373 for (h = 0; h < h_max; ++h) { 374 uchar ix = N_BLK_HOR * iy + (h/h_step); 375 *pix++ = test_colors[ix]; 376 } 377 } 378 } 379 #endif /* LCD_TEST_PATTERN */ 380 381 382 /************************************************************************/ 383 /* ** GENERIC Initialization Routines */ 384 /************************************************************************/ 385 386 int lcd_get_size(int *line_length) 387 { 388 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 389 return *line_length * panel_info.vl_row; 390 } 391 392 int drv_lcd_init (void) 393 { 394 struct stdio_dev lcddev; 395 int rc; 396 397 lcd_base = (void *)(gd->fb_base); 398 399 lcd_get_size(&lcd_line_length); 400 401 lcd_init(lcd_base); /* LCD initialization */ 402 403 /* Device initialization */ 404 memset(&lcddev, 0, sizeof(lcddev)); 405 406 strcpy(lcddev.name, "lcd"); 407 lcddev.ext = 0; /* No extensions */ 408 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 409 lcddev.putc = lcd_putc; /* 'putc' function */ 410 lcddev.puts = lcd_puts; /* 'puts' function */ 411 412 rc = stdio_register (&lcddev); 413 414 return (rc == 0) ? 1 : rc; 415 } 416 417 /*----------------------------------------------------------------------*/ 418 void lcd_clear(void) 419 { 420 #if LCD_BPP == LCD_MONOCHROME 421 /* Setting the palette */ 422 lcd_initcolregs(); 423 424 #elif LCD_BPP == LCD_COLOR8 425 /* Setting the palette */ 426 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 427 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 428 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 429 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 430 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 431 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 432 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 433 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 434 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 435 #endif 436 437 #ifndef CONFIG_SYS_WHITE_ON_BLACK 438 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 439 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 440 #else 441 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 442 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 443 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 444 445 #ifdef LCD_TEST_PATTERN 446 test_pattern(); 447 #else 448 /* set framebuffer to background color */ 449 memset((char *)lcd_base, 450 COLOR_MASK(lcd_getbgcolor()), 451 lcd_line_length*panel_info.vl_row); 452 #endif 453 /* Paint the logo and retrieve LCD base address */ 454 debug("[LCD] Drawing the logo...\n"); 455 lcd_console_address = lcd_logo (); 456 457 console_col = 0; 458 console_row = 0; 459 lcd_sync(); 460 } 461 462 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 463 char *const argv[]) 464 { 465 lcd_clear(); 466 return 0; 467 } 468 469 U_BOOT_CMD( 470 cls, 1, 1, do_lcd_clear, 471 "clear screen", 472 "" 473 ); 474 475 /*----------------------------------------------------------------------*/ 476 477 static int lcd_init(void *lcdbase) 478 { 479 /* Initialize the lcd controller */ 480 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 481 482 lcd_ctrl_init(lcdbase); 483 lcd_is_enabled = 1; 484 lcd_clear(); 485 lcd_enable (); 486 487 /* Initialize the console */ 488 console_col = 0; 489 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 490 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 491 #else 492 console_row = 1; /* leave 1 blank line below logo */ 493 #endif 494 495 return 0; 496 } 497 498 499 /************************************************************************/ 500 /* ** ROM capable initialization part - needed to reserve FB memory */ 501 /************************************************************************/ 502 /* 503 * This is called early in the system initialization to grab memory 504 * for the LCD controller. 505 * Returns new address for monitor, after reserving LCD buffer memory 506 * 507 * Note that this is running from ROM, so no write access to global data. 508 */ 509 ulong lcd_setmem(ulong addr) 510 { 511 ulong size; 512 int line_length; 513 514 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 515 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 516 517 size = lcd_get_size(&line_length); 518 519 /* Round up to nearest full page, or MMU section if defined */ 520 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 521 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 522 523 /* Allocate pages for the frame buffer. */ 524 addr -= size; 525 526 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr); 527 528 return addr; 529 } 530 531 /*----------------------------------------------------------------------*/ 532 533 static void lcd_setfgcolor(int color) 534 { 535 lcd_color_fg = color; 536 } 537 538 /*----------------------------------------------------------------------*/ 539 540 static void lcd_setbgcolor(int color) 541 { 542 lcd_color_bg = color; 543 } 544 545 /*----------------------------------------------------------------------*/ 546 547 int lcd_getfgcolor(void) 548 { 549 return lcd_color_fg; 550 } 551 552 /*----------------------------------------------------------------------*/ 553 554 static int lcd_getbgcolor(void) 555 { 556 return lcd_color_bg; 557 } 558 559 /*----------------------------------------------------------------------*/ 560 561 /************************************************************************/ 562 /* ** Chipset depending Bitmap / Logo stuff... */ 563 /************************************************************************/ 564 static inline ushort *configuration_get_cmap(void) 565 { 566 #if defined CONFIG_CPU_PXA 567 struct pxafb_info *fbi = &panel_info.pxa; 568 return (ushort *)fbi->palette; 569 #elif defined(CONFIG_MPC823) 570 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 571 cpm8xx_t *cp = &(immr->im_cpm); 572 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 573 #elif defined(CONFIG_ATMEL_LCD) 574 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 575 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 576 return panel_info.cmap; 577 #else 578 #if defined(CONFIG_LCD_LOGO) 579 return bmp_logo_palette; 580 #else 581 return NULL; 582 #endif 583 #endif 584 } 585 586 #ifdef CONFIG_LCD_LOGO 587 void bitmap_plot(int x, int y) 588 { 589 #ifdef CONFIG_ATMEL_LCD 590 uint *cmap = (uint *)bmp_logo_palette; 591 #else 592 ushort *cmap = (ushort *)bmp_logo_palette; 593 #endif 594 ushort i, j; 595 uchar *bmap; 596 uchar *fb; 597 ushort *fb16; 598 #if defined(CONFIG_MPC823) 599 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 600 cpm8xx_t *cp = &(immr->im_cpm); 601 #endif 602 603 debug("Logo: width %d height %d colors %d cmap %d\n", 604 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 605 ARRAY_SIZE(bmp_logo_palette)); 606 607 bmap = &bmp_logo_bitmap[0]; 608 fb = (uchar *)(lcd_base + y * lcd_line_length + x); 609 610 if (NBITS(panel_info.vl_bpix) < 12) { 611 /* Leave room for default color map 612 * default case: generic system with no cmap (most likely 16bpp) 613 * cmap was set to the source palette, so no change is done. 614 * This avoids even more ifdefs in the next stanza 615 */ 616 #if defined(CONFIG_MPC823) 617 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 618 #elif defined(CONFIG_ATMEL_LCD) 619 cmap = (uint *)configuration_get_cmap(); 620 #else 621 cmap = configuration_get_cmap(); 622 #endif 623 624 WATCHDOG_RESET(); 625 626 /* Set color map */ 627 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 628 ushort colreg = bmp_logo_palette[i]; 629 #ifdef CONFIG_ATMEL_LCD 630 uint lut_entry; 631 #ifdef CONFIG_ATMEL_LCD_BGR555 632 lut_entry = ((colreg & 0x000F) << 11) | 633 ((colreg & 0x00F0) << 2) | 634 ((colreg & 0x0F00) >> 7); 635 #else /* CONFIG_ATMEL_LCD_RGB565 */ 636 lut_entry = ((colreg & 0x000F) << 1) | 637 ((colreg & 0x00F0) << 3) | 638 ((colreg & 0x0F00) << 4); 639 #endif 640 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 641 cmap++; 642 #else /* !CONFIG_ATMEL_LCD */ 643 #ifdef CONFIG_SYS_INVERT_COLORS 644 *cmap++ = 0xffff - colreg; 645 #else 646 *cmap++ = colreg; 647 #endif 648 #endif /* CONFIG_ATMEL_LCD */ 649 } 650 651 WATCHDOG_RESET(); 652 653 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 654 memcpy(fb, bmap, BMP_LOGO_WIDTH); 655 bmap += BMP_LOGO_WIDTH; 656 fb += panel_info.vl_col; 657 } 658 } 659 else { /* true color mode */ 660 u16 col16; 661 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x); 662 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 663 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 664 col16 = bmp_logo_palette[(bmap[j]-16)]; 665 fb16[j] = 666 ((col16 & 0x000F) << 1) | 667 ((col16 & 0x00F0) << 3) | 668 ((col16 & 0x0F00) << 4); 669 } 670 bmap += BMP_LOGO_WIDTH; 671 fb16 += panel_info.vl_col; 672 } 673 } 674 675 WATCHDOG_RESET(); 676 lcd_sync(); 677 } 678 #else 679 static inline void bitmap_plot(int x, int y) {} 680 #endif /* CONFIG_LCD_LOGO */ 681 682 /*----------------------------------------------------------------------*/ 683 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 684 /* 685 * Display the BMP file located at address bmp_image. 686 * Only uncompressed. 687 */ 688 689 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 690 #define BMP_ALIGN_CENTER 0x7FFF 691 692 static void splash_align_axis(int *axis, unsigned long panel_size, 693 unsigned long picture_size) 694 { 695 unsigned long panel_picture_delta = panel_size - picture_size; 696 unsigned long axis_alignment; 697 698 if (*axis == BMP_ALIGN_CENTER) 699 axis_alignment = panel_picture_delta / 2; 700 else if (*axis < 0) 701 axis_alignment = panel_picture_delta + *axis + 1; 702 else 703 return; 704 705 *axis = max(0, axis_alignment); 706 } 707 #endif 708 709 710 #ifdef CONFIG_LCD_BMP_RLE8 711 712 #define BMP_RLE8_ESCAPE 0 713 #define BMP_RLE8_EOL 0 714 #define BMP_RLE8_EOBMP 1 715 #define BMP_RLE8_DELTA 2 716 717 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 718 int cnt) 719 { 720 while (cnt > 0) { 721 *(*fbp)++ = cmap[*bmap++]; 722 cnt--; 723 } 724 } 725 726 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 727 { 728 ushort *fb = *fbp; 729 int cnt_8copy = cnt >> 3; 730 731 cnt -= cnt_8copy << 3; 732 while (cnt_8copy > 0) { 733 *fb++ = c; 734 *fb++ = c; 735 *fb++ = c; 736 *fb++ = c; 737 *fb++ = c; 738 *fb++ = c; 739 *fb++ = c; 740 *fb++ = c; 741 cnt_8copy--; 742 } 743 while (cnt > 0) { 744 *fb++ = c; 745 cnt--; 746 } 747 (*fbp) = fb; 748 } 749 750 /* 751 * Do not call this function directly, must be called from 752 * lcd_display_bitmap. 753 */ 754 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 755 int x_off, int y_off) 756 { 757 uchar *bmap; 758 ulong width, height; 759 ulong cnt, runlen; 760 int x, y; 761 int decode = 1; 762 763 width = le32_to_cpu(bmp->header.width); 764 height = le32_to_cpu(bmp->header.height); 765 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 766 767 x = 0; 768 y = height - 1; 769 770 while (decode) { 771 if (bmap[0] == BMP_RLE8_ESCAPE) { 772 switch (bmap[1]) { 773 case BMP_RLE8_EOL: 774 /* end of line */ 775 bmap += 2; 776 x = 0; 777 y--; 778 /* 16bpix, 2-byte per pixel, width should *2 */ 779 fb -= (width * 2 + lcd_line_length); 780 break; 781 case BMP_RLE8_EOBMP: 782 /* end of bitmap */ 783 decode = 0; 784 break; 785 case BMP_RLE8_DELTA: 786 /* delta run */ 787 x += bmap[2]; 788 y -= bmap[3]; 789 /* 16bpix, 2-byte per pixel, x should *2 */ 790 fb = (uchar *) (lcd_base + (y + y_off - 1) 791 * lcd_line_length + (x + x_off) * 2); 792 bmap += 4; 793 break; 794 default: 795 /* unencoded run */ 796 runlen = bmap[1]; 797 bmap += 2; 798 if (y < height) { 799 if (x < width) { 800 if (x + runlen > width) 801 cnt = width - x; 802 else 803 cnt = runlen; 804 draw_unencoded_bitmap( 805 (ushort **)&fb, 806 bmap, cmap, cnt); 807 } 808 x += runlen; 809 } 810 bmap += runlen; 811 if (runlen & 1) 812 bmap++; 813 } 814 } else { 815 /* encoded run */ 816 if (y < height) { 817 runlen = bmap[0]; 818 if (x < width) { 819 /* aggregate the same code */ 820 while (bmap[0] == 0xff && 821 bmap[2] != BMP_RLE8_ESCAPE && 822 bmap[1] == bmap[3]) { 823 runlen += bmap[2]; 824 bmap += 2; 825 } 826 if (x + runlen > width) 827 cnt = width - x; 828 else 829 cnt = runlen; 830 draw_encoded_bitmap((ushort **)&fb, 831 cmap[bmap[1]], cnt); 832 } 833 x += runlen; 834 } 835 bmap += 2; 836 } 837 } 838 } 839 #endif 840 841 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 842 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 843 #else 844 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 845 #endif 846 847 #if defined(CONFIG_BMP_16BPP) 848 #if defined(CONFIG_ATMEL_LCD_BGR555) 849 static inline void fb_put_word(uchar **fb, uchar **from) 850 { 851 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 852 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 853 *from += 2; 854 } 855 #else 856 static inline void fb_put_word(uchar **fb, uchar **from) 857 { 858 *(*fb)++ = *(*from)++; 859 *(*fb)++ = *(*from)++; 860 } 861 #endif 862 #endif /* CONFIG_BMP_16BPP */ 863 864 int lcd_display_bitmap(ulong bmp_image, int x, int y) 865 { 866 #if !defined(CONFIG_MCC200) 867 ushort *cmap = NULL; 868 #endif 869 ushort *cmap_base = NULL; 870 ushort i, j; 871 uchar *fb; 872 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 873 uchar *bmap; 874 ushort padded_width; 875 unsigned long width, height, byte_width; 876 unsigned long pwidth = panel_info.vl_col; 877 unsigned colors, bpix, bmp_bpix; 878 879 if (!bmp || !((bmp->header.signature[0] == 'B') && 880 (bmp->header.signature[1] == 'M'))) { 881 printf("Error: no valid bmp image at %lx\n", bmp_image); 882 883 return 1; 884 } 885 886 width = le32_to_cpu(bmp->header.width); 887 height = le32_to_cpu(bmp->header.height); 888 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 889 colors = 1 << bmp_bpix; 890 891 bpix = NBITS(panel_info.vl_bpix); 892 893 if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) { 894 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 895 bpix, bmp_bpix); 896 897 return 1; 898 } 899 900 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 901 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 902 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 903 bpix, 904 le16_to_cpu(bmp->header.bit_count)); 905 906 return 1; 907 } 908 909 debug("Display-bmp: %d x %d with %d colors\n", 910 (int)width, (int)height, (int)colors); 911 912 #if !defined(CONFIG_MCC200) 913 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 914 if (bmp_bpix == 8) { 915 cmap = configuration_get_cmap(); 916 cmap_base = cmap; 917 918 /* Set color map */ 919 for (i = 0; i < colors; ++i) { 920 bmp_color_table_entry_t cte = bmp->color_table[i]; 921 #if !defined(CONFIG_ATMEL_LCD) 922 ushort colreg = 923 ( ((cte.red) << 8) & 0xf800) | 924 ( ((cte.green) << 3) & 0x07e0) | 925 ( ((cte.blue) >> 3) & 0x001f) ; 926 #ifdef CONFIG_SYS_INVERT_COLORS 927 *cmap = 0xffff - colreg; 928 #else 929 *cmap = colreg; 930 #endif 931 #if defined(CONFIG_MPC823) 932 cmap--; 933 #else 934 cmap++; 935 #endif 936 #else /* CONFIG_ATMEL_LCD */ 937 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 938 #endif 939 } 940 } 941 #endif 942 943 /* 944 * BMP format for Monochrome assumes that the state of a 945 * pixel is described on a per Bit basis, not per Byte. 946 * So, in case of Monochrome BMP we should align widths 947 * on a byte boundary and convert them from Bit to Byte 948 * units. 949 * Probably, PXA250 and MPC823 process 1bpp BMP images in 950 * their own ways, so make the converting to be MCC200 951 * specific. 952 */ 953 #if defined(CONFIG_MCC200) 954 if (bpix == 1) { 955 width = ((width + 7) & ~7) >> 3; 956 x = ((x + 7) & ~7) >> 3; 957 pwidth= ((pwidth + 7) & ~7) >> 3; 958 } 959 #endif 960 961 padded_width = (width&0x3) ? ((width&~0x3)+4) : (width); 962 963 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 964 splash_align_axis(&x, pwidth, width); 965 splash_align_axis(&y, panel_info.vl_row, height); 966 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 967 968 if ((x + width) > pwidth) 969 width = pwidth - x; 970 if ((y + height) > panel_info.vl_row) 971 height = panel_info.vl_row - y; 972 973 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 974 fb = (uchar *) (lcd_base + 975 (y + height - 1) * lcd_line_length + x * bpix / 8); 976 977 switch (bmp_bpix) { 978 case 1: /* pass through */ 979 case 8: 980 #ifdef CONFIG_LCD_BMP_RLE8 981 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 982 if (bpix != 16) { 983 /* TODO implement render code for bpix != 16 */ 984 printf("Error: only support 16 bpix"); 985 return 1; 986 } 987 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 988 break; 989 } 990 #endif 991 992 if (bpix != 16) 993 byte_width = width; 994 else 995 byte_width = width * 2; 996 997 for (i = 0; i < height; ++i) { 998 WATCHDOG_RESET(); 999 for (j = 0; j < width; j++) { 1000 if (bpix != 16) { 1001 FB_PUT_BYTE(fb, bmap); 1002 } else { 1003 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1004 fb += sizeof(uint16_t) / sizeof(*fb); 1005 } 1006 } 1007 bmap += (padded_width - width); 1008 fb -= (byte_width + lcd_line_length); 1009 } 1010 break; 1011 1012 #if defined(CONFIG_BMP_16BPP) 1013 case 16: 1014 for (i = 0; i < height; ++i) { 1015 WATCHDOG_RESET(); 1016 for (j = 0; j < width; j++) 1017 fb_put_word(&fb, &bmap); 1018 1019 bmap += (padded_width - width) * 2; 1020 fb -= (width * 2 + lcd_line_length); 1021 } 1022 break; 1023 #endif /* CONFIG_BMP_16BPP */ 1024 1025 #if defined(CONFIG_BMP_32BPP) 1026 case 32: 1027 for (i = 0; i < height; ++i) { 1028 for (j = 0; j < width; j++) { 1029 *(fb++) = *(bmap++); 1030 *(fb++) = *(bmap++); 1031 *(fb++) = *(bmap++); 1032 *(fb++) = *(bmap++); 1033 } 1034 fb -= (lcd_line_length + width * (bpix / 8)); 1035 } 1036 break; 1037 #endif /* CONFIG_BMP_32BPP */ 1038 default: 1039 break; 1040 }; 1041 1042 lcd_sync(); 1043 return 0; 1044 } 1045 #endif 1046 1047 #ifdef CONFIG_SPLASH_SCREEN_PREPARE 1048 static inline int splash_screen_prepare(void) 1049 { 1050 return board_splash_screen_prepare(); 1051 } 1052 #else 1053 static inline int splash_screen_prepare(void) 1054 { 1055 return 0; 1056 } 1057 #endif 1058 1059 static void *lcd_logo(void) 1060 { 1061 #ifdef CONFIG_SPLASH_SCREEN 1062 char *s; 1063 ulong addr; 1064 static int do_splash = 1; 1065 1066 if (do_splash && (s = getenv("splashimage")) != NULL) { 1067 int x = 0, y = 0; 1068 do_splash = 0; 1069 1070 if (splash_screen_prepare()) 1071 return (void *)gd->fb_base; 1072 1073 addr = simple_strtoul (s, NULL, 16); 1074 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 1075 s = getenv("splashpos"); 1076 if (s != NULL) { 1077 if (s[0] == 'm') 1078 x = BMP_ALIGN_CENTER; 1079 else 1080 x = simple_strtol(s, NULL, 0); 1081 1082 s = strchr(s + 1, ','); 1083 if (s != NULL) { 1084 if (s[1] == 'm') 1085 y = BMP_ALIGN_CENTER; 1086 else 1087 y = simple_strtol (s + 1, NULL, 0); 1088 } 1089 } 1090 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 1091 1092 if (bmp_display(addr, x, y) == 0) 1093 return (void *)lcd_base; 1094 } 1095 #endif /* CONFIG_SPLASH_SCREEN */ 1096 1097 bitmap_plot(0, 0); 1098 1099 #ifdef CONFIG_LCD_INFO 1100 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1101 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1102 lcd_show_board_info(); 1103 #endif /* CONFIG_LCD_INFO */ 1104 1105 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1106 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1107 #else 1108 return (void *)lcd_base; 1109 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */ 1110 } 1111 1112 #ifdef CONFIG_SPLASHIMAGE_GUARD 1113 static int on_splashimage(const char *name, const char *value, enum env_op op, 1114 int flags) 1115 { 1116 ulong addr; 1117 int aligned; 1118 1119 if (op == env_op_delete) 1120 return 0; 1121 1122 addr = simple_strtoul(value, NULL, 16); 1123 /* See README.displaying-bmps */ 1124 aligned = (addr % 4 == 2); 1125 if (!aligned) { 1126 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1127 return -1; 1128 } 1129 1130 return 0; 1131 } 1132 1133 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1134 #endif 1135 1136 void lcd_position_cursor(unsigned col, unsigned row) 1137 { 1138 console_col = min(col, CONSOLE_COLS - 1); 1139 console_row = min(row, CONSOLE_ROWS - 1); 1140 } 1141 1142 int lcd_get_pixel_width(void) 1143 { 1144 return panel_info.vl_col; 1145 } 1146 1147 int lcd_get_pixel_height(void) 1148 { 1149 return panel_info.vl_row; 1150 } 1151 1152 int lcd_get_screen_rows(void) 1153 { 1154 return CONSOLE_ROWS; 1155 } 1156 1157 int lcd_get_screen_columns(void) 1158 { 1159 return CONSOLE_COLS; 1160 } 1161 1162 /************************************************************************/ 1163 /************************************************************************/ 1164