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