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_init(lcd_base); /* LCD initialization */ 415 416 /* Device initialization */ 417 memset(&lcddev, 0, sizeof(lcddev)); 418 419 strcpy(lcddev.name, "lcd"); 420 lcddev.ext = 0; /* No extensions */ 421 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 422 lcddev.putc = lcd_putc; /* 'putc' function */ 423 lcddev.puts = lcd_puts; /* 'puts' function */ 424 425 rc = stdio_register(&lcddev); 426 427 return (rc == 0) ? 1 : rc; 428 } 429 430 /*----------------------------------------------------------------------*/ 431 void lcd_clear(void) 432 { 433 #if LCD_BPP == LCD_MONOCHROME 434 /* Setting the palette */ 435 lcd_initcolregs(); 436 437 #elif LCD_BPP == LCD_COLOR8 438 /* Setting the palette */ 439 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 440 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 441 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 442 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 443 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 444 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 445 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 446 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 447 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 448 #endif 449 450 #ifndef CONFIG_SYS_WHITE_ON_BLACK 451 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 452 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 453 #else 454 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 455 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 456 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 457 458 #ifdef LCD_TEST_PATTERN 459 test_pattern(); 460 #else 461 /* set framebuffer to background color */ 462 memset((char *)lcd_base, 463 COLOR_MASK(lcd_getbgcolor()), 464 lcd_line_length * panel_info.vl_row); 465 #endif 466 /* Paint the logo and retrieve LCD base address */ 467 debug("[LCD] Drawing the logo...\n"); 468 lcd_console_address = lcd_logo(); 469 470 console_col = 0; 471 console_row = 0; 472 lcd_sync(); 473 } 474 475 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 476 char *const argv[]) 477 { 478 lcd_clear(); 479 return 0; 480 } 481 482 U_BOOT_CMD( 483 cls, 1, 1, do_lcd_clear, 484 "clear screen", 485 "" 486 ); 487 488 /*----------------------------------------------------------------------*/ 489 490 static int lcd_init(void *lcdbase) 491 { 492 /* Initialize the lcd controller */ 493 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 494 495 lcd_ctrl_init(lcdbase); 496 497 /* 498 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores 499 * the 'lcdbase' argument and uses custom lcd base address 500 * by setting up gd->fb_base. Check for this condition and fixup 501 * 'lcd_base' address. 502 */ 503 if ((unsigned long)lcdbase != gd->fb_base) 504 lcd_base = (void *)gd->fb_base; 505 506 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 507 508 lcd_get_size(&lcd_line_length); 509 lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 510 lcd_is_enabled = 1; 511 lcd_clear(); 512 lcd_enable(); 513 514 /* Initialize the console */ 515 console_col = 0; 516 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 517 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 518 #else 519 console_row = 1; /* leave 1 blank line below logo */ 520 #endif 521 522 return 0; 523 } 524 525 526 /************************************************************************/ 527 /* ** ROM capable initialization part - needed to reserve FB memory */ 528 /************************************************************************/ 529 /* 530 * This is called early in the system initialization to grab memory 531 * for the LCD controller. 532 * Returns new address for monitor, after reserving LCD buffer memory 533 * 534 * Note that this is running from ROM, so no write access to global data. 535 */ 536 ulong lcd_setmem(ulong addr) 537 { 538 ulong size; 539 int line_length; 540 541 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 542 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 543 544 size = lcd_get_size(&line_length); 545 546 /* Round up to nearest full page, or MMU section if defined */ 547 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 548 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 549 550 /* Allocate pages for the frame buffer. */ 551 addr -= size; 552 553 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 554 size >> 10, addr); 555 556 return addr; 557 } 558 559 /*----------------------------------------------------------------------*/ 560 561 static void lcd_setfgcolor(int color) 562 { 563 lcd_color_fg = color; 564 } 565 566 /*----------------------------------------------------------------------*/ 567 568 static void lcd_setbgcolor(int color) 569 { 570 lcd_color_bg = color; 571 } 572 573 /*----------------------------------------------------------------------*/ 574 575 int lcd_getfgcolor(void) 576 { 577 return lcd_color_fg; 578 } 579 580 /*----------------------------------------------------------------------*/ 581 582 static int lcd_getbgcolor(void) 583 { 584 return lcd_color_bg; 585 } 586 587 /************************************************************************/ 588 /* ** Chipset depending Bitmap / Logo stuff... */ 589 /************************************************************************/ 590 static inline ushort *configuration_get_cmap(void) 591 { 592 #if defined CONFIG_CPU_PXA 593 struct pxafb_info *fbi = &panel_info.pxa; 594 return (ushort *)fbi->palette; 595 #elif defined(CONFIG_MPC823) 596 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 597 cpm8xx_t *cp = &(immr->im_cpm); 598 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 599 #elif defined(CONFIG_ATMEL_LCD) 600 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 601 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 602 return panel_info.cmap; 603 #elif defined(CONFIG_LCD_LOGO) 604 return bmp_logo_palette; 605 #else 606 return NULL; 607 #endif 608 } 609 610 #ifdef CONFIG_LCD_LOGO 611 void bitmap_plot(int x, int y) 612 { 613 #ifdef CONFIG_ATMEL_LCD 614 uint *cmap = (uint *)bmp_logo_palette; 615 #else 616 ushort *cmap = (ushort *)bmp_logo_palette; 617 #endif 618 ushort i, j; 619 uchar *bmap; 620 uchar *fb; 621 ushort *fb16; 622 #if defined(CONFIG_MPC823) 623 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 624 cpm8xx_t *cp = &(immr->im_cpm); 625 #endif 626 unsigned bpix = NBITS(panel_info.vl_bpix); 627 628 debug("Logo: width %d height %d colors %d cmap %d\n", 629 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 630 ARRAY_SIZE(bmp_logo_palette)); 631 632 bmap = &bmp_logo_bitmap[0]; 633 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 634 635 if (bpix < 12) { 636 /* Leave room for default color map 637 * default case: generic system with no cmap (most likely 16bpp) 638 * cmap was set to the source palette, so no change is done. 639 * This avoids even more ifdefs in the next stanza 640 */ 641 #if defined(CONFIG_MPC823) 642 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 643 #elif defined(CONFIG_ATMEL_LCD) 644 cmap = (uint *)configuration_get_cmap(); 645 #else 646 cmap = configuration_get_cmap(); 647 #endif 648 649 WATCHDOG_RESET(); 650 651 /* Set color map */ 652 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 653 ushort colreg = bmp_logo_palette[i]; 654 #ifdef CONFIG_ATMEL_LCD 655 uint lut_entry; 656 #ifdef CONFIG_ATMEL_LCD_BGR555 657 lut_entry = ((colreg & 0x000F) << 11) | 658 ((colreg & 0x00F0) << 2) | 659 ((colreg & 0x0F00) >> 7); 660 #else /* CONFIG_ATMEL_LCD_RGB565 */ 661 lut_entry = ((colreg & 0x000F) << 1) | 662 ((colreg & 0x00F0) << 3) | 663 ((colreg & 0x0F00) << 4); 664 #endif 665 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 666 cmap++; 667 #else /* !CONFIG_ATMEL_LCD */ 668 #ifdef CONFIG_SYS_INVERT_COLORS 669 *cmap++ = 0xffff - colreg; 670 #else 671 *cmap++ = colreg; 672 #endif 673 #endif /* CONFIG_ATMEL_LCD */ 674 } 675 676 WATCHDOG_RESET(); 677 678 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 679 memcpy(fb, bmap, BMP_LOGO_WIDTH); 680 bmap += BMP_LOGO_WIDTH; 681 fb += panel_info.vl_col; 682 } 683 } 684 else { /* true color mode */ 685 u16 col16; 686 fb16 = (ushort *)fb; 687 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 688 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 689 col16 = bmp_logo_palette[(bmap[j]-16)]; 690 fb16[j] = 691 ((col16 & 0x000F) << 1) | 692 ((col16 & 0x00F0) << 3) | 693 ((col16 & 0x0F00) << 4); 694 } 695 bmap += BMP_LOGO_WIDTH; 696 fb16 += panel_info.vl_col; 697 } 698 } 699 700 WATCHDOG_RESET(); 701 lcd_sync(); 702 } 703 #else 704 static inline void bitmap_plot(int x, int y) {} 705 #endif /* CONFIG_LCD_LOGO */ 706 707 /*----------------------------------------------------------------------*/ 708 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 709 /* 710 * Display the BMP file located at address bmp_image. 711 * Only uncompressed. 712 */ 713 714 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 715 #define BMP_ALIGN_CENTER 0x7FFF 716 717 static void splash_align_axis(int *axis, unsigned long panel_size, 718 unsigned long picture_size) 719 { 720 unsigned long panel_picture_delta = panel_size - picture_size; 721 unsigned long axis_alignment; 722 723 if (*axis == BMP_ALIGN_CENTER) 724 axis_alignment = panel_picture_delta / 2; 725 else if (*axis < 0) 726 axis_alignment = panel_picture_delta + *axis + 1; 727 else 728 return; 729 730 *axis = max(0, axis_alignment); 731 } 732 #endif 733 734 735 #ifdef CONFIG_LCD_BMP_RLE8 736 737 #define BMP_RLE8_ESCAPE 0 738 #define BMP_RLE8_EOL 0 739 #define BMP_RLE8_EOBMP 1 740 #define BMP_RLE8_DELTA 2 741 742 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 743 int cnt) 744 { 745 while (cnt > 0) { 746 *(*fbp)++ = cmap[*bmap++]; 747 cnt--; 748 } 749 } 750 751 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 752 { 753 ushort *fb = *fbp; 754 int cnt_8copy = cnt >> 3; 755 756 cnt -= cnt_8copy << 3; 757 while (cnt_8copy > 0) { 758 *fb++ = c; 759 *fb++ = c; 760 *fb++ = c; 761 *fb++ = c; 762 *fb++ = c; 763 *fb++ = c; 764 *fb++ = c; 765 *fb++ = c; 766 cnt_8copy--; 767 } 768 while (cnt > 0) { 769 *fb++ = c; 770 cnt--; 771 } 772 *fbp = fb; 773 } 774 775 /* 776 * Do not call this function directly, must be called from lcd_display_bitmap. 777 */ 778 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 779 int x_off, int y_off) 780 { 781 uchar *bmap; 782 ulong width, height; 783 ulong cnt, runlen; 784 int x, y; 785 int decode = 1; 786 787 width = le32_to_cpu(bmp->header.width); 788 height = le32_to_cpu(bmp->header.height); 789 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 790 791 x = 0; 792 y = height - 1; 793 794 while (decode) { 795 if (bmap[0] == BMP_RLE8_ESCAPE) { 796 switch (bmap[1]) { 797 case BMP_RLE8_EOL: 798 /* end of line */ 799 bmap += 2; 800 x = 0; 801 y--; 802 /* 16bpix, 2-byte per pixel, width should *2 */ 803 fb -= (width * 2 + lcd_line_length); 804 break; 805 case BMP_RLE8_EOBMP: 806 /* end of bitmap */ 807 decode = 0; 808 break; 809 case BMP_RLE8_DELTA: 810 /* delta run */ 811 x += bmap[2]; 812 y -= bmap[3]; 813 /* 16bpix, 2-byte per pixel, x should *2 */ 814 fb = (uchar *) (lcd_base + (y + y_off - 1) 815 * lcd_line_length + (x + x_off) * 2); 816 bmap += 4; 817 break; 818 default: 819 /* unencoded run */ 820 runlen = bmap[1]; 821 bmap += 2; 822 if (y < height) { 823 if (x < width) { 824 if (x + runlen > width) 825 cnt = width - x; 826 else 827 cnt = runlen; 828 draw_unencoded_bitmap( 829 (ushort **)&fb, 830 bmap, cmap, cnt); 831 } 832 x += runlen; 833 } 834 bmap += runlen; 835 if (runlen & 1) 836 bmap++; 837 } 838 } else { 839 /* encoded run */ 840 if (y < height) { 841 runlen = bmap[0]; 842 if (x < width) { 843 /* aggregate the same code */ 844 while (bmap[0] == 0xff && 845 bmap[2] != BMP_RLE8_ESCAPE && 846 bmap[1] == bmap[3]) { 847 runlen += bmap[2]; 848 bmap += 2; 849 } 850 if (x + runlen > width) 851 cnt = width - x; 852 else 853 cnt = runlen; 854 draw_encoded_bitmap((ushort **)&fb, 855 cmap[bmap[1]], cnt); 856 } 857 x += runlen; 858 } 859 bmap += 2; 860 } 861 } 862 } 863 #endif 864 865 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 866 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 867 #else 868 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 869 #endif 870 871 #if defined(CONFIG_BMP_16BPP) 872 #if defined(CONFIG_ATMEL_LCD_BGR555) 873 static inline void fb_put_word(uchar **fb, uchar **from) 874 { 875 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 876 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 877 *from += 2; 878 } 879 #else 880 static inline void fb_put_word(uchar **fb, uchar **from) 881 { 882 *(*fb)++ = *(*from)++; 883 *(*fb)++ = *(*from)++; 884 } 885 #endif 886 #endif /* CONFIG_BMP_16BPP */ 887 888 int lcd_display_bitmap(ulong bmp_image, int x, int y) 889 { 890 #if !defined(CONFIG_MCC200) 891 ushort *cmap = NULL; 892 #endif 893 ushort *cmap_base = NULL; 894 ushort i, j; 895 uchar *fb; 896 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 897 uchar *bmap; 898 ushort padded_width; 899 unsigned long width, height, byte_width; 900 unsigned long pwidth = panel_info.vl_col; 901 unsigned colors, bpix, bmp_bpix; 902 903 if (!bmp || !(bmp->header.signature[0] == 'B' && 904 bmp->header.signature[1] == 'M')) { 905 printf("Error: no valid bmp image at %lx\n", bmp_image); 906 907 return 1; 908 } 909 910 width = le32_to_cpu(bmp->header.width); 911 height = le32_to_cpu(bmp->header.height); 912 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 913 colors = 1 << bmp_bpix; 914 915 bpix = NBITS(panel_info.vl_bpix); 916 917 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 918 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 919 bpix, bmp_bpix); 920 921 return 1; 922 } 923 924 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 925 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 926 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 927 bpix, 928 le16_to_cpu(bmp->header.bit_count)); 929 930 return 1; 931 } 932 933 debug("Display-bmp: %d x %d with %d colors\n", 934 (int)width, (int)height, (int)colors); 935 936 #if !defined(CONFIG_MCC200) 937 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 938 if (bmp_bpix == 8) { 939 cmap = configuration_get_cmap(); 940 cmap_base = cmap; 941 942 /* Set color map */ 943 for (i = 0; i < colors; ++i) { 944 bmp_color_table_entry_t cte = bmp->color_table[i]; 945 #if !defined(CONFIG_ATMEL_LCD) 946 ushort colreg = 947 ( ((cte.red) << 8) & 0xf800) | 948 ( ((cte.green) << 3) & 0x07e0) | 949 ( ((cte.blue) >> 3) & 0x001f) ; 950 #ifdef CONFIG_SYS_INVERT_COLORS 951 *cmap = 0xffff - colreg; 952 #else 953 *cmap = colreg; 954 #endif 955 #if defined(CONFIG_MPC823) 956 cmap--; 957 #else 958 cmap++; 959 #endif 960 #else /* CONFIG_ATMEL_LCD */ 961 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 962 #endif 963 } 964 } 965 #endif 966 967 /* 968 * BMP format for Monochrome assumes that the state of a 969 * pixel is described on a per Bit basis, not per Byte. 970 * So, in case of Monochrome BMP we should align widths 971 * on a byte boundary and convert them from Bit to Byte 972 * units. 973 * Probably, PXA250 and MPC823 process 1bpp BMP images in 974 * their own ways, so make the converting to be MCC200 975 * specific. 976 */ 977 #if defined(CONFIG_MCC200) 978 if (bpix == 1) { 979 width = ((width + 7) & ~7) >> 3; 980 x = ((x + 7) & ~7) >> 3; 981 pwidth= ((pwidth + 7) & ~7) >> 3; 982 } 983 #endif 984 985 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 986 987 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 988 splash_align_axis(&x, pwidth, width); 989 splash_align_axis(&y, panel_info.vl_row, height); 990 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 991 992 if ((x + width) > pwidth) 993 width = pwidth - x; 994 if ((y + height) > panel_info.vl_row) 995 height = panel_info.vl_row - y; 996 997 bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset); 998 fb = (uchar *) (lcd_base + 999 (y + height - 1) * lcd_line_length + x * bpix / 8); 1000 1001 switch (bmp_bpix) { 1002 case 1: /* pass through */ 1003 case 8: 1004 #ifdef CONFIG_LCD_BMP_RLE8 1005 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 1006 if (bpix != 16) { 1007 /* TODO implement render code for bpix != 16 */ 1008 printf("Error: only support 16 bpix"); 1009 return 1; 1010 } 1011 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1012 break; 1013 } 1014 #endif 1015 1016 if (bpix != 16) 1017 byte_width = width; 1018 else 1019 byte_width = width * 2; 1020 1021 for (i = 0; i < height; ++i) { 1022 WATCHDOG_RESET(); 1023 for (j = 0; j < width; j++) { 1024 if (bpix != 16) { 1025 FB_PUT_BYTE(fb, bmap); 1026 } else { 1027 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1028 fb += sizeof(uint16_t) / sizeof(*fb); 1029 } 1030 } 1031 bmap += (padded_width - width); 1032 fb -= byte_width + lcd_line_length; 1033 } 1034 break; 1035 1036 #if defined(CONFIG_BMP_16BPP) 1037 case 16: 1038 for (i = 0; i < height; ++i) { 1039 WATCHDOG_RESET(); 1040 for (j = 0; j < width; j++) 1041 fb_put_word(&fb, &bmap); 1042 1043 bmap += (padded_width - width) * 2; 1044 fb -= width * 2 + lcd_line_length; 1045 } 1046 break; 1047 #endif /* CONFIG_BMP_16BPP */ 1048 1049 #if defined(CONFIG_BMP_32BPP) 1050 case 32: 1051 for (i = 0; i < height; ++i) { 1052 for (j = 0; j < width; j++) { 1053 *(fb++) = *(bmap++); 1054 *(fb++) = *(bmap++); 1055 *(fb++) = *(bmap++); 1056 *(fb++) = *(bmap++); 1057 } 1058 fb -= lcd_line_length + width * (bpix / 8); 1059 } 1060 break; 1061 #endif /* CONFIG_BMP_32BPP */ 1062 default: 1063 break; 1064 }; 1065 1066 lcd_sync(); 1067 return 0; 1068 } 1069 #endif 1070 1071 #ifdef CONFIG_SPLASH_SCREEN_PREPARE 1072 static inline int splash_screen_prepare(void) 1073 { 1074 return board_splash_screen_prepare(); 1075 } 1076 #else 1077 static inline int splash_screen_prepare(void) 1078 { 1079 return 0; 1080 } 1081 #endif 1082 1083 static void *lcd_logo(void) 1084 { 1085 #ifdef CONFIG_SPLASH_SCREEN 1086 char *s; 1087 ulong addr; 1088 static int do_splash = 1; 1089 1090 if (do_splash && (s = getenv("splashimage")) != NULL) { 1091 int x = 0, y = 0; 1092 do_splash = 0; 1093 1094 if (splash_screen_prepare()) 1095 return (void *)gd->fb_base; 1096 1097 addr = simple_strtoul (s, NULL, 16); 1098 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 1099 s = getenv("splashpos"); 1100 if (s != NULL) { 1101 if (s[0] == 'm') 1102 x = BMP_ALIGN_CENTER; 1103 else 1104 x = simple_strtol(s, NULL, 0); 1105 1106 s = strchr(s + 1, ','); 1107 if (s != NULL) { 1108 if (s[1] == 'm') 1109 y = BMP_ALIGN_CENTER; 1110 else 1111 y = simple_strtol (s + 1, NULL, 0); 1112 } 1113 } 1114 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 1115 1116 if (bmp_display(addr, x, y) == 0) 1117 return (void *)lcd_base; 1118 } 1119 #endif /* CONFIG_SPLASH_SCREEN */ 1120 1121 bitmap_plot(0, 0); 1122 1123 #ifdef CONFIG_LCD_INFO 1124 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1125 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1126 lcd_show_board_info(); 1127 #endif /* CONFIG_LCD_INFO */ 1128 1129 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1130 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1131 #else 1132 return (void *)lcd_base; 1133 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1134 } 1135 1136 #ifdef CONFIG_SPLASHIMAGE_GUARD 1137 static int on_splashimage(const char *name, const char *value, enum env_op op, 1138 int flags) 1139 { 1140 ulong addr; 1141 int aligned; 1142 1143 if (op == env_op_delete) 1144 return 0; 1145 1146 addr = simple_strtoul(value, NULL, 16); 1147 /* See README.displaying-bmps */ 1148 aligned = (addr % 4 == 2); 1149 if (!aligned) { 1150 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1151 return -1; 1152 } 1153 1154 return 0; 1155 } 1156 1157 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1158 #endif 1159 1160 void lcd_position_cursor(unsigned col, unsigned row) 1161 { 1162 console_col = min(col, CONSOLE_COLS - 1); 1163 console_row = min(row, CONSOLE_ROWS - 1); 1164 } 1165 1166 int lcd_get_pixel_width(void) 1167 { 1168 return panel_info.vl_col; 1169 } 1170 1171 int lcd_get_pixel_height(void) 1172 { 1173 return panel_info.vl_row; 1174 } 1175 1176 int lcd_get_screen_rows(void) 1177 { 1178 return CONSOLE_ROWS; 1179 } 1180 1181 int lcd_get_screen_columns(void) 1182 { 1183 return CONSOLE_COLS; 1184 } 1185