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 /************************************************************************/ 87 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 88 /************************************************************************/ 89 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 90 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 91 / VIDEO_FONT_HEIGHT) 92 #else 93 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 94 #endif 95 96 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 97 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 98 #define CONSOLE_ROW_FIRST lcd_console_address 99 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 100 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 101 - CONSOLE_ROW_SIZE) 102 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 103 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 104 105 #if LCD_BPP == LCD_MONOCHROME 106 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 107 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 108 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 109 # define COLOR_MASK(c) (c) 110 #else 111 # error Unsupported LCD BPP. 112 #endif 113 114 DECLARE_GLOBAL_DATA_PTR; 115 116 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 117 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 118 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 119 120 static int lcd_init(void *lcdbase); 121 122 static void *lcd_logo(void); 123 124 static int lcd_getbgcolor(void); 125 static void lcd_setfgcolor(int color); 126 static void lcd_setbgcolor(int color); 127 128 static int lcd_color_fg; 129 static int lcd_color_bg; 130 int lcd_line_length; 131 132 char lcd_is_enabled = 0; 133 134 static short console_col; 135 static short console_row; 136 137 static void *lcd_console_address; 138 static void *lcd_base; /* Start of framebuffer memory */ 139 140 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 141 142 /************************************************************************/ 143 144 /* Flush LCD activity to the caches */ 145 void lcd_sync(void) 146 { 147 /* 148 * flush_dcache_range() is declared in common.h but it seems that some 149 * architectures do not actually implement it. Is there a way to find 150 * out whether it exists? For now, ARM is safe. 151 */ 152 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 153 int line_length; 154 155 if (lcd_flush_dcache) 156 flush_dcache_range((u32)lcd_base, 157 (u32)(lcd_base + lcd_get_size(&line_length))); 158 #endif 159 } 160 161 void lcd_set_flush_dcache(int flush) 162 { 163 lcd_flush_dcache = (flush != 0); 164 } 165 166 /*----------------------------------------------------------------------*/ 167 168 static void console_scrollup(void) 169 { 170 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 171 172 /* Copy up rows ignoring those that will be overwritten */ 173 memcpy(CONSOLE_ROW_FIRST, 174 lcd_console_address + CONSOLE_ROW_SIZE * rows, 175 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 176 177 /* Clear the last rows */ 178 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 179 COLOR_MASK(lcd_color_bg), 180 CONSOLE_ROW_SIZE * rows); 181 182 lcd_sync(); 183 console_row -= rows; 184 } 185 186 /*----------------------------------------------------------------------*/ 187 188 static inline void console_back(void) 189 { 190 if (--console_col < 0) { 191 console_col = CONSOLE_COLS-1 ; 192 if (--console_row < 0) 193 console_row = 0; 194 } 195 196 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 197 console_row * VIDEO_FONT_HEIGHT, ' '); 198 } 199 200 /*----------------------------------------------------------------------*/ 201 202 static inline void console_newline(void) 203 { 204 console_col = 0; 205 206 /* Check if we need to scroll the terminal */ 207 if (++console_row >= CONSOLE_ROWS) 208 console_scrollup(); 209 else 210 lcd_sync(); 211 } 212 213 /*----------------------------------------------------------------------*/ 214 215 void lcd_putc(const char c) 216 { 217 if (!lcd_is_enabled) { 218 serial_putc(c); 219 220 return; 221 } 222 223 switch (c) { 224 case '\r': 225 console_col = 0; 226 227 return; 228 case '\n': 229 console_newline(); 230 231 return; 232 case '\t': /* Tab (8 chars alignment) */ 233 console_col += 8; 234 console_col &= ~7; 235 236 if (console_col >= CONSOLE_COLS) 237 console_newline(); 238 239 return; 240 case '\b': 241 console_back(); 242 243 return; 244 default: 245 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 246 console_row * VIDEO_FONT_HEIGHT, c); 247 if (++console_col >= CONSOLE_COLS) 248 console_newline(); 249 } 250 } 251 252 /*----------------------------------------------------------------------*/ 253 254 void lcd_puts(const char *s) 255 { 256 if (!lcd_is_enabled) { 257 serial_puts(s); 258 259 return; 260 } 261 262 while (*s) 263 lcd_putc(*s++); 264 265 lcd_sync(); 266 } 267 268 /*----------------------------------------------------------------------*/ 269 270 void lcd_printf(const char *fmt, ...) 271 { 272 va_list args; 273 char buf[CONFIG_SYS_PBSIZE]; 274 275 va_start(args, fmt); 276 vsprintf(buf, fmt, args); 277 va_end(args); 278 279 lcd_puts(buf); 280 } 281 282 /************************************************************************/ 283 /* ** Low-Level Graphics Routines */ 284 /************************************************************************/ 285 286 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 287 { 288 uchar *dest; 289 ushort row; 290 291 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 292 y += BMP_LOGO_HEIGHT; 293 #endif 294 295 #if LCD_BPP == LCD_MONOCHROME 296 ushort off = x * (1 << LCD_BPP) % 8; 297 #endif 298 299 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 300 301 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 302 uchar *s = str; 303 int i; 304 #if LCD_BPP == LCD_COLOR16 305 ushort *d = (ushort *)dest; 306 #else 307 uchar *d = dest; 308 #endif 309 310 #if LCD_BPP == LCD_MONOCHROME 311 uchar rest = *d & -(1 << (8 - off)); 312 uchar sym; 313 #endif 314 for (i = 0; i < count; ++i) { 315 uchar c, bits; 316 317 c = *s++; 318 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 319 320 #if LCD_BPP == LCD_MONOCHROME 321 sym = (COLOR_MASK(lcd_color_fg) & bits) | 322 (COLOR_MASK(lcd_color_bg) & ~bits); 323 324 *d++ = rest | (sym >> off); 325 rest = sym << (8-off); 326 #elif LCD_BPP == LCD_COLOR8 327 for (c = 0; c < 8; ++c) { 328 *d++ = (bits & 0x80) ? 329 lcd_color_fg : lcd_color_bg; 330 bits <<= 1; 331 } 332 #elif LCD_BPP == LCD_COLOR16 333 for (c = 0; c < 8; ++c) { 334 *d++ = (bits & 0x80) ? 335 lcd_color_fg : lcd_color_bg; 336 bits <<= 1; 337 } 338 #endif 339 } 340 #if LCD_BPP == LCD_MONOCHROME 341 *d = rest | (*d & ((1 << (8 - off)) - 1)); 342 #endif 343 } 344 } 345 346 /*----------------------------------------------------------------------*/ 347 348 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 349 { 350 lcd_drawchars(x, y, s, strlen((char *)s)); 351 } 352 353 /*----------------------------------------------------------------------*/ 354 355 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 356 { 357 lcd_drawchars(x, y, &c, 1); 358 } 359 360 /************************************************************************/ 361 /** Small utility to check that you got the colours right */ 362 /************************************************************************/ 363 #ifdef LCD_TEST_PATTERN 364 365 #define N_BLK_VERT 2 366 #define N_BLK_HOR 3 367 368 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 369 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 370 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 371 }; 372 373 static void test_pattern(void) 374 { 375 ushort v_max = panel_info.vl_row; 376 ushort h_max = panel_info.vl_col; 377 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 378 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 379 ushort v, h; 380 uchar *pix = (uchar *)lcd_base; 381 382 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 383 h_max, v_max, h_step, v_step); 384 385 /* WARNING: Code silently assumes 8bit/pixel */ 386 for (v = 0; v < v_max; ++v) { 387 uchar iy = v / v_step; 388 for (h = 0; h < h_max; ++h) { 389 uchar ix = N_BLK_HOR * iy + h / h_step; 390 *pix++ = test_colors[ix]; 391 } 392 } 393 } 394 #endif /* LCD_TEST_PATTERN */ 395 396 397 /************************************************************************/ 398 /* ** GENERIC Initialization Routines */ 399 /************************************************************************/ 400 401 int lcd_get_size(int *line_length) 402 { 403 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 404 return *line_length * panel_info.vl_row; 405 } 406 407 int drv_lcd_init(void) 408 { 409 struct stdio_dev lcddev; 410 int rc; 411 412 lcd_base = (void *) gd->fb_base; 413 414 lcd_get_size(&lcd_line_length); 415 416 lcd_init(lcd_base); /* LCD initialization */ 417 418 /* Device initialization */ 419 memset(&lcddev, 0, sizeof(lcddev)); 420 421 strcpy(lcddev.name, "lcd"); 422 lcddev.ext = 0; /* No extensions */ 423 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 424 lcddev.putc = lcd_putc; /* 'putc' function */ 425 lcddev.puts = lcd_puts; /* 'puts' function */ 426 427 rc = stdio_register(&lcddev); 428 429 return (rc == 0) ? 1 : rc; 430 } 431 432 /*----------------------------------------------------------------------*/ 433 void lcd_clear(void) 434 { 435 #if LCD_BPP == LCD_MONOCHROME 436 /* Setting the palette */ 437 lcd_initcolregs(); 438 439 #elif LCD_BPP == LCD_COLOR8 440 /* Setting the palette */ 441 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 442 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 443 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 444 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 445 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 446 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 447 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 448 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 449 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 450 #endif 451 452 #ifndef CONFIG_SYS_WHITE_ON_BLACK 453 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 454 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 455 #else 456 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 457 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 458 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 459 460 #ifdef LCD_TEST_PATTERN 461 test_pattern(); 462 #else 463 /* set framebuffer to background color */ 464 memset((char *)lcd_base, 465 COLOR_MASK(lcd_getbgcolor()), 466 lcd_line_length * panel_info.vl_row); 467 #endif 468 /* Paint the logo and retrieve LCD base address */ 469 debug("[LCD] Drawing the logo...\n"); 470 lcd_console_address = lcd_logo(); 471 472 console_col = 0; 473 console_row = 0; 474 lcd_sync(); 475 } 476 477 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 478 char *const argv[]) 479 { 480 lcd_clear(); 481 return 0; 482 } 483 484 U_BOOT_CMD( 485 cls, 1, 1, do_lcd_clear, 486 "clear screen", 487 "" 488 ); 489 490 /*----------------------------------------------------------------------*/ 491 492 static int lcd_init(void *lcdbase) 493 { 494 /* Initialize the lcd controller */ 495 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 496 497 lcd_ctrl_init(lcdbase); 498 lcd_is_enabled = 1; 499 lcd_clear(); 500 lcd_enable(); 501 502 /* Initialize the console */ 503 console_col = 0; 504 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 505 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 506 #else 507 console_row = 1; /* leave 1 blank line below logo */ 508 #endif 509 510 return 0; 511 } 512 513 514 /************************************************************************/ 515 /* ** ROM capable initialization part - needed to reserve FB memory */ 516 /************************************************************************/ 517 /* 518 * This is called early in the system initialization to grab memory 519 * for the LCD controller. 520 * Returns new address for monitor, after reserving LCD buffer memory 521 * 522 * Note that this is running from ROM, so no write access to global data. 523 */ 524 ulong lcd_setmem(ulong addr) 525 { 526 ulong size; 527 int line_length; 528 529 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 530 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 531 532 size = lcd_get_size(&line_length); 533 534 /* Round up to nearest full page, or MMU section if defined */ 535 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 536 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 537 538 /* Allocate pages for the frame buffer. */ 539 addr -= size; 540 541 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 542 size >> 10, addr); 543 544 return addr; 545 } 546 547 /*----------------------------------------------------------------------*/ 548 549 static void lcd_setfgcolor(int color) 550 { 551 lcd_color_fg = color; 552 } 553 554 /*----------------------------------------------------------------------*/ 555 556 static void lcd_setbgcolor(int color) 557 { 558 lcd_color_bg = color; 559 } 560 561 /*----------------------------------------------------------------------*/ 562 563 int lcd_getfgcolor(void) 564 { 565 return lcd_color_fg; 566 } 567 568 /*----------------------------------------------------------------------*/ 569 570 static int lcd_getbgcolor(void) 571 { 572 return lcd_color_bg; 573 } 574 575 /************************************************************************/ 576 /* ** Chipset depending Bitmap / Logo stuff... */ 577 /************************************************************************/ 578 static inline ushort *configuration_get_cmap(void) 579 { 580 #if defined CONFIG_CPU_PXA 581 struct pxafb_info *fbi = &panel_info.pxa; 582 return (ushort *)fbi->palette; 583 #elif defined(CONFIG_MPC823) 584 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 585 cpm8xx_t *cp = &(immr->im_cpm); 586 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 587 #elif defined(CONFIG_ATMEL_LCD) 588 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 589 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 590 return panel_info.cmap; 591 #elif defined(CONFIG_LCD_LOGO) 592 return bmp_logo_palette; 593 #else 594 return NULL; 595 #endif 596 } 597 598 #ifdef CONFIG_LCD_LOGO 599 void bitmap_plot(int x, int y) 600 { 601 #ifdef CONFIG_ATMEL_LCD 602 uint *cmap = (uint *)bmp_logo_palette; 603 #else 604 ushort *cmap = (ushort *)bmp_logo_palette; 605 #endif 606 ushort i, j; 607 uchar *bmap; 608 uchar *fb; 609 ushort *fb16; 610 #if defined(CONFIG_MPC823) 611 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 612 cpm8xx_t *cp = &(immr->im_cpm); 613 #endif 614 615 debug("Logo: width %d height %d colors %d cmap %d\n", 616 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 617 ARRAY_SIZE(bmp_logo_palette)); 618 619 bmap = &bmp_logo_bitmap[0]; 620 fb = (uchar *)(lcd_base + y * lcd_line_length + x); 621 622 if (NBITS(panel_info.vl_bpix) < 12) { 623 /* Leave room for default color map 624 * default case: generic system with no cmap (most likely 16bpp) 625 * cmap was set to the source palette, so no change is done. 626 * This avoids even more ifdefs in the next stanza 627 */ 628 #if defined(CONFIG_MPC823) 629 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 630 #elif defined(CONFIG_ATMEL_LCD) 631 cmap = (uint *)configuration_get_cmap(); 632 #else 633 cmap = configuration_get_cmap(); 634 #endif 635 636 WATCHDOG_RESET(); 637 638 /* Set color map */ 639 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 640 ushort colreg = bmp_logo_palette[i]; 641 #ifdef CONFIG_ATMEL_LCD 642 uint lut_entry; 643 #ifdef CONFIG_ATMEL_LCD_BGR555 644 lut_entry = ((colreg & 0x000F) << 11) | 645 ((colreg & 0x00F0) << 2) | 646 ((colreg & 0x0F00) >> 7); 647 #else /* CONFIG_ATMEL_LCD_RGB565 */ 648 lut_entry = ((colreg & 0x000F) << 1) | 649 ((colreg & 0x00F0) << 3) | 650 ((colreg & 0x0F00) << 4); 651 #endif 652 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 653 cmap++; 654 #else /* !CONFIG_ATMEL_LCD */ 655 #ifdef CONFIG_SYS_INVERT_COLORS 656 *cmap++ = 0xffff - colreg; 657 #else 658 *cmap++ = colreg; 659 #endif 660 #endif /* CONFIG_ATMEL_LCD */ 661 } 662 663 WATCHDOG_RESET(); 664 665 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 666 memcpy(fb, bmap, BMP_LOGO_WIDTH); 667 bmap += BMP_LOGO_WIDTH; 668 fb += panel_info.vl_col; 669 } 670 } 671 else { /* true color mode */ 672 u16 col16; 673 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x); 674 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 675 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 676 col16 = bmp_logo_palette[(bmap[j]-16)]; 677 fb16[j] = 678 ((col16 & 0x000F) << 1) | 679 ((col16 & 0x00F0) << 3) | 680 ((col16 & 0x0F00) << 4); 681 } 682 bmap += BMP_LOGO_WIDTH; 683 fb16 += panel_info.vl_col; 684 } 685 } 686 687 WATCHDOG_RESET(); 688 lcd_sync(); 689 } 690 #else 691 static inline void bitmap_plot(int x, int y) {} 692 #endif /* CONFIG_LCD_LOGO */ 693 694 /*----------------------------------------------------------------------*/ 695 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 696 /* 697 * Display the BMP file located at address bmp_image. 698 * Only uncompressed. 699 */ 700 701 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 702 #define BMP_ALIGN_CENTER 0x7FFF 703 704 static void splash_align_axis(int *axis, unsigned long panel_size, 705 unsigned long picture_size) 706 { 707 unsigned long panel_picture_delta = panel_size - picture_size; 708 unsigned long axis_alignment; 709 710 if (*axis == BMP_ALIGN_CENTER) 711 axis_alignment = panel_picture_delta / 2; 712 else if (*axis < 0) 713 axis_alignment = panel_picture_delta + *axis + 1; 714 else 715 return; 716 717 *axis = max(0, axis_alignment); 718 } 719 #endif 720 721 722 #ifdef CONFIG_LCD_BMP_RLE8 723 724 #define BMP_RLE8_ESCAPE 0 725 #define BMP_RLE8_EOL 0 726 #define BMP_RLE8_EOBMP 1 727 #define BMP_RLE8_DELTA 2 728 729 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 730 int cnt) 731 { 732 while (cnt > 0) { 733 *(*fbp)++ = cmap[*bmap++]; 734 cnt--; 735 } 736 } 737 738 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 739 { 740 ushort *fb = *fbp; 741 int cnt_8copy = cnt >> 3; 742 743 cnt -= cnt_8copy << 3; 744 while (cnt_8copy > 0) { 745 *fb++ = c; 746 *fb++ = c; 747 *fb++ = c; 748 *fb++ = c; 749 *fb++ = c; 750 *fb++ = c; 751 *fb++ = c; 752 *fb++ = c; 753 cnt_8copy--; 754 } 755 while (cnt > 0) { 756 *fb++ = c; 757 cnt--; 758 } 759 *fbp = fb; 760 } 761 762 /* 763 * Do not call this function directly, must be called from lcd_display_bitmap. 764 */ 765 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 766 int x_off, int y_off) 767 { 768 uchar *bmap; 769 ulong width, height; 770 ulong cnt, runlen; 771 int x, y; 772 int decode = 1; 773 774 width = le32_to_cpu(bmp->header.width); 775 height = le32_to_cpu(bmp->header.height); 776 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 777 778 x = 0; 779 y = height - 1; 780 781 while (decode) { 782 if (bmap[0] == BMP_RLE8_ESCAPE) { 783 switch (bmap[1]) { 784 case BMP_RLE8_EOL: 785 /* end of line */ 786 bmap += 2; 787 x = 0; 788 y--; 789 /* 16bpix, 2-byte per pixel, width should *2 */ 790 fb -= (width * 2 + lcd_line_length); 791 break; 792 case BMP_RLE8_EOBMP: 793 /* end of bitmap */ 794 decode = 0; 795 break; 796 case BMP_RLE8_DELTA: 797 /* delta run */ 798 x += bmap[2]; 799 y -= bmap[3]; 800 /* 16bpix, 2-byte per pixel, x should *2 */ 801 fb = (uchar *) (lcd_base + (y + y_off - 1) 802 * lcd_line_length + (x + x_off) * 2); 803 bmap += 4; 804 break; 805 default: 806 /* unencoded run */ 807 runlen = bmap[1]; 808 bmap += 2; 809 if (y < height) { 810 if (x < width) { 811 if (x + runlen > width) 812 cnt = width - x; 813 else 814 cnt = runlen; 815 draw_unencoded_bitmap( 816 (ushort **)&fb, 817 bmap, cmap, cnt); 818 } 819 x += runlen; 820 } 821 bmap += runlen; 822 if (runlen & 1) 823 bmap++; 824 } 825 } else { 826 /* encoded run */ 827 if (y < height) { 828 runlen = bmap[0]; 829 if (x < width) { 830 /* aggregate the same code */ 831 while (bmap[0] == 0xff && 832 bmap[2] != BMP_RLE8_ESCAPE && 833 bmap[1] == bmap[3]) { 834 runlen += bmap[2]; 835 bmap += 2; 836 } 837 if (x + runlen > width) 838 cnt = width - x; 839 else 840 cnt = runlen; 841 draw_encoded_bitmap((ushort **)&fb, 842 cmap[bmap[1]], cnt); 843 } 844 x += runlen; 845 } 846 bmap += 2; 847 } 848 } 849 } 850 #endif 851 852 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 853 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 854 #else 855 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 856 #endif 857 858 #if defined(CONFIG_BMP_16BPP) 859 #if defined(CONFIG_ATMEL_LCD_BGR555) 860 static inline void fb_put_word(uchar **fb, uchar **from) 861 { 862 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 863 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 864 *from += 2; 865 } 866 #else 867 static inline void fb_put_word(uchar **fb, uchar **from) 868 { 869 *(*fb)++ = *(*from)++; 870 *(*fb)++ = *(*from)++; 871 } 872 #endif 873 #endif /* CONFIG_BMP_16BPP */ 874 875 int lcd_display_bitmap(ulong bmp_image, int x, int y) 876 { 877 #if !defined(CONFIG_MCC200) 878 ushort *cmap = NULL; 879 #endif 880 ushort *cmap_base = NULL; 881 ushort i, j; 882 uchar *fb; 883 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 884 uchar *bmap; 885 ushort padded_width; 886 unsigned long width, height, byte_width; 887 unsigned long pwidth = panel_info.vl_col; 888 unsigned colors, bpix, bmp_bpix; 889 890 if (!bmp || !(bmp->header.signature[0] == 'B' && 891 bmp->header.signature[1] == 'M')) { 892 printf("Error: no valid bmp image at %lx\n", bmp_image); 893 894 return 1; 895 } 896 897 width = le32_to_cpu(bmp->header.width); 898 height = le32_to_cpu(bmp->header.height); 899 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 900 colors = 1 << bmp_bpix; 901 902 bpix = NBITS(panel_info.vl_bpix); 903 904 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 905 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 906 bpix, bmp_bpix); 907 908 return 1; 909 } 910 911 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 912 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 913 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 914 bpix, 915 le16_to_cpu(bmp->header.bit_count)); 916 917 return 1; 918 } 919 920 debug("Display-bmp: %d x %d with %d colors\n", 921 (int)width, (int)height, (int)colors); 922 923 #if !defined(CONFIG_MCC200) 924 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 925 if (bmp_bpix == 8) { 926 cmap = configuration_get_cmap(); 927 cmap_base = cmap; 928 929 /* Set color map */ 930 for (i = 0; i < colors; ++i) { 931 bmp_color_table_entry_t cte = bmp->color_table[i]; 932 #if !defined(CONFIG_ATMEL_LCD) 933 ushort colreg = 934 ( ((cte.red) << 8) & 0xf800) | 935 ( ((cte.green) << 3) & 0x07e0) | 936 ( ((cte.blue) >> 3) & 0x001f) ; 937 #ifdef CONFIG_SYS_INVERT_COLORS 938 *cmap = 0xffff - colreg; 939 #else 940 *cmap = colreg; 941 #endif 942 #if defined(CONFIG_MPC823) 943 cmap--; 944 #else 945 cmap++; 946 #endif 947 #else /* CONFIG_ATMEL_LCD */ 948 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 949 #endif 950 } 951 } 952 #endif 953 954 /* 955 * BMP format for Monochrome assumes that the state of a 956 * pixel is described on a per Bit basis, not per Byte. 957 * So, in case of Monochrome BMP we should align widths 958 * on a byte boundary and convert them from Bit to Byte 959 * units. 960 * Probably, PXA250 and MPC823 process 1bpp BMP images in 961 * their own ways, so make the converting to be MCC200 962 * specific. 963 */ 964 #if defined(CONFIG_MCC200) 965 if (bpix == 1) { 966 width = ((width + 7) & ~7) >> 3; 967 x = ((x + 7) & ~7) >> 3; 968 pwidth= ((pwidth + 7) & ~7) >> 3; 969 } 970 #endif 971 972 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 973 974 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 975 splash_align_axis(&x, pwidth, width); 976 splash_align_axis(&y, panel_info.vl_row, height); 977 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 978 979 if ((x + width) > pwidth) 980 width = pwidth - x; 981 if ((y + height) > panel_info.vl_row) 982 height = panel_info.vl_row - y; 983 984 bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset); 985 fb = (uchar *) (lcd_base + 986 (y + height - 1) * lcd_line_length + x * bpix / 8); 987 988 switch (bmp_bpix) { 989 case 1: /* pass through */ 990 case 8: 991 #ifdef CONFIG_LCD_BMP_RLE8 992 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 993 if (bpix != 16) { 994 /* TODO implement render code for bpix != 16 */ 995 printf("Error: only support 16 bpix"); 996 return 1; 997 } 998 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 999 break; 1000 } 1001 #endif 1002 1003 if (bpix != 16) 1004 byte_width = width; 1005 else 1006 byte_width = width * 2; 1007 1008 for (i = 0; i < height; ++i) { 1009 WATCHDOG_RESET(); 1010 for (j = 0; j < width; j++) { 1011 if (bpix != 16) { 1012 FB_PUT_BYTE(fb, bmap); 1013 } else { 1014 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1015 fb += sizeof(uint16_t) / sizeof(*fb); 1016 } 1017 } 1018 bmap += (padded_width - width); 1019 fb -= byte_width + lcd_line_length; 1020 } 1021 break; 1022 1023 #if defined(CONFIG_BMP_16BPP) 1024 case 16: 1025 for (i = 0; i < height; ++i) { 1026 WATCHDOG_RESET(); 1027 for (j = 0; j < width; j++) 1028 fb_put_word(&fb, &bmap); 1029 1030 bmap += (padded_width - width) * 2; 1031 fb -= width * 2 + lcd_line_length; 1032 } 1033 break; 1034 #endif /* CONFIG_BMP_16BPP */ 1035 1036 #if defined(CONFIG_BMP_32BPP) 1037 case 32: 1038 for (i = 0; i < height; ++i) { 1039 for (j = 0; j < width; j++) { 1040 *(fb++) = *(bmap++); 1041 *(fb++) = *(bmap++); 1042 *(fb++) = *(bmap++); 1043 *(fb++) = *(bmap++); 1044 } 1045 fb -= lcd_line_length + width * (bpix / 8); 1046 } 1047 break; 1048 #endif /* CONFIG_BMP_32BPP */ 1049 default: 1050 break; 1051 }; 1052 1053 lcd_sync(); 1054 return 0; 1055 } 1056 #endif 1057 1058 #ifdef CONFIG_SPLASH_SCREEN_PREPARE 1059 static inline int splash_screen_prepare(void) 1060 { 1061 return board_splash_screen_prepare(); 1062 } 1063 #else 1064 static inline int splash_screen_prepare(void) 1065 { 1066 return 0; 1067 } 1068 #endif 1069 1070 static void *lcd_logo(void) 1071 { 1072 #ifdef CONFIG_SPLASH_SCREEN 1073 char *s; 1074 ulong addr; 1075 static int do_splash = 1; 1076 1077 if (do_splash && (s = getenv("splashimage")) != NULL) { 1078 int x = 0, y = 0; 1079 do_splash = 0; 1080 1081 if (splash_screen_prepare()) 1082 return (void *)gd->fb_base; 1083 1084 addr = simple_strtoul (s, NULL, 16); 1085 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 1086 s = getenv("splashpos"); 1087 if (s != NULL) { 1088 if (s[0] == 'm') 1089 x = BMP_ALIGN_CENTER; 1090 else 1091 x = simple_strtol(s, NULL, 0); 1092 1093 s = strchr(s + 1, ','); 1094 if (s != NULL) { 1095 if (s[1] == 'm') 1096 y = BMP_ALIGN_CENTER; 1097 else 1098 y = simple_strtol (s + 1, NULL, 0); 1099 } 1100 } 1101 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 1102 1103 if (bmp_display(addr, x, y) == 0) 1104 return (void *)lcd_base; 1105 } 1106 #endif /* CONFIG_SPLASH_SCREEN */ 1107 1108 bitmap_plot(0, 0); 1109 1110 #ifdef CONFIG_LCD_INFO 1111 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1112 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1113 lcd_show_board_info(); 1114 #endif /* CONFIG_LCD_INFO */ 1115 1116 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1117 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1118 #else 1119 return (void *)lcd_base; 1120 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1121 } 1122 1123 #ifdef CONFIG_SPLASHIMAGE_GUARD 1124 static int on_splashimage(const char *name, const char *value, enum env_op op, 1125 int flags) 1126 { 1127 ulong addr; 1128 int aligned; 1129 1130 if (op == env_op_delete) 1131 return 0; 1132 1133 addr = simple_strtoul(value, NULL, 16); 1134 /* See README.displaying-bmps */ 1135 aligned = (addr % 4 == 2); 1136 if (!aligned) { 1137 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1138 return -1; 1139 } 1140 1141 return 0; 1142 } 1143 1144 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1145 #endif 1146 1147 void lcd_position_cursor(unsigned col, unsigned row) 1148 { 1149 console_col = min(col, CONSOLE_COLS - 1); 1150 console_row = min(row, CONSOLE_ROWS - 1); 1151 } 1152 1153 int lcd_get_pixel_width(void) 1154 { 1155 return panel_info.vl_col; 1156 } 1157 1158 int lcd_get_pixel_height(void) 1159 { 1160 return panel_info.vl_row; 1161 } 1162 1163 int lcd_get_screen_rows(void) 1164 { 1165 return CONSOLE_ROWS; 1166 } 1167 1168 int lcd_get_screen_columns(void) 1169 { 1170 return CONSOLE_COLS; 1171 } 1172