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 #include <splash.h> 47 48 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 49 defined(CONFIG_CPU_MONAHANS) 50 #define CONFIG_CPU_PXA 51 #include <asm/byteorder.h> 52 #endif 53 54 #if defined(CONFIG_MPC823) 55 #include <lcdvideo.h> 56 #endif 57 58 #if defined(CONFIG_ATMEL_LCD) 59 #include <atmel_lcdc.h> 60 #endif 61 62 #if defined(CONFIG_LCD_DT_SIMPLEFB) 63 #include <libfdt.h> 64 #endif 65 66 /************************************************************************/ 67 /* ** FONT DATA */ 68 /************************************************************************/ 69 #include <video_font.h> /* Get font data, width and height */ 70 #include <video_font_data.h> 71 72 /************************************************************************/ 73 /* ** LOGO DATA */ 74 /************************************************************************/ 75 #ifdef CONFIG_LCD_LOGO 76 # include <bmp_logo.h> /* Get logo data, width and height */ 77 # include <bmp_logo_data.h> 78 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 79 # error Default Color Map overlaps with Logo Color Map 80 # endif 81 #endif 82 83 #ifndef CONFIG_LCD_ALIGNMENT 84 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 85 #endif 86 87 /* By default we scroll by a single line */ 88 #ifndef CONFIG_CONSOLE_SCROLL_LINES 89 #define CONFIG_CONSOLE_SCROLL_LINES 1 90 #endif 91 92 /************************************************************************/ 93 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 94 /************************************************************************/ 95 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 96 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 97 / VIDEO_FONT_HEIGHT) 98 #else 99 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 100 #endif 101 102 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 103 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 104 #define CONSOLE_ROW_FIRST lcd_console_address 105 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 106 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 107 - CONSOLE_ROW_SIZE) 108 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 109 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 110 111 #if LCD_BPP == LCD_MONOCHROME 112 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 113 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 114 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 115 # define COLOR_MASK(c) (c) 116 #else 117 # error Unsupported LCD BPP. 118 #endif 119 120 DECLARE_GLOBAL_DATA_PTR; 121 122 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 123 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 124 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 125 126 static int lcd_init(void *lcdbase); 127 128 static void *lcd_logo(void); 129 130 static int lcd_getbgcolor(void); 131 static void lcd_setfgcolor(int color); 132 static void lcd_setbgcolor(int color); 133 134 static int lcd_color_fg; 135 static int lcd_color_bg; 136 int lcd_line_length; 137 138 char lcd_is_enabled = 0; 139 140 static short console_col; 141 static short console_row; 142 143 static void *lcd_console_address; 144 static void *lcd_base; /* Start of framebuffer memory */ 145 146 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 147 148 /************************************************************************/ 149 150 /* Flush LCD activity to the caches */ 151 void lcd_sync(void) 152 { 153 /* 154 * flush_dcache_range() is declared in common.h but it seems that some 155 * architectures do not actually implement it. Is there a way to find 156 * out whether it exists? For now, ARM is safe. 157 */ 158 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 159 int line_length; 160 161 if (lcd_flush_dcache) 162 flush_dcache_range((u32)lcd_base, 163 (u32)(lcd_base + lcd_get_size(&line_length))); 164 #endif 165 } 166 167 void lcd_set_flush_dcache(int flush) 168 { 169 lcd_flush_dcache = (flush != 0); 170 } 171 172 /*----------------------------------------------------------------------*/ 173 174 static void console_scrollup(void) 175 { 176 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 177 178 /* Copy up rows ignoring those that will be overwritten */ 179 memcpy(CONSOLE_ROW_FIRST, 180 lcd_console_address + CONSOLE_ROW_SIZE * rows, 181 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 182 183 /* Clear the last rows */ 184 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 185 COLOR_MASK(lcd_color_bg), 186 CONSOLE_ROW_SIZE * rows); 187 188 lcd_sync(); 189 console_row -= rows; 190 } 191 192 /*----------------------------------------------------------------------*/ 193 194 static inline void console_back(void) 195 { 196 if (--console_col < 0) { 197 console_col = CONSOLE_COLS-1 ; 198 if (--console_row < 0) 199 console_row = 0; 200 } 201 202 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 203 console_row * VIDEO_FONT_HEIGHT, ' '); 204 } 205 206 /*----------------------------------------------------------------------*/ 207 208 static inline void console_newline(void) 209 { 210 console_col = 0; 211 212 /* Check if we need to scroll the terminal */ 213 if (++console_row >= CONSOLE_ROWS) 214 console_scrollup(); 215 else 216 lcd_sync(); 217 } 218 219 /*----------------------------------------------------------------------*/ 220 221 void lcd_putc(const char c) 222 { 223 if (!lcd_is_enabled) { 224 serial_putc(c); 225 226 return; 227 } 228 229 switch (c) { 230 case '\r': 231 console_col = 0; 232 233 return; 234 case '\n': 235 console_newline(); 236 237 return; 238 case '\t': /* Tab (8 chars alignment) */ 239 console_col += 8; 240 console_col &= ~7; 241 242 if (console_col >= CONSOLE_COLS) 243 console_newline(); 244 245 return; 246 case '\b': 247 console_back(); 248 249 return; 250 default: 251 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 252 console_row * VIDEO_FONT_HEIGHT, c); 253 if (++console_col >= CONSOLE_COLS) 254 console_newline(); 255 } 256 } 257 258 /*----------------------------------------------------------------------*/ 259 260 void lcd_puts(const char *s) 261 { 262 if (!lcd_is_enabled) { 263 serial_puts(s); 264 265 return; 266 } 267 268 while (*s) 269 lcd_putc(*s++); 270 271 lcd_sync(); 272 } 273 274 /*----------------------------------------------------------------------*/ 275 276 void lcd_printf(const char *fmt, ...) 277 { 278 va_list args; 279 char buf[CONFIG_SYS_PBSIZE]; 280 281 va_start(args, fmt); 282 vsprintf(buf, fmt, args); 283 va_end(args); 284 285 lcd_puts(buf); 286 } 287 288 /************************************************************************/ 289 /* ** Low-Level Graphics Routines */ 290 /************************************************************************/ 291 292 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 293 { 294 uchar *dest; 295 ushort row; 296 297 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 298 y += BMP_LOGO_HEIGHT; 299 #endif 300 301 #if LCD_BPP == LCD_MONOCHROME 302 ushort off = x * (1 << LCD_BPP) % 8; 303 #endif 304 305 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 306 307 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 308 uchar *s = str; 309 int i; 310 #if LCD_BPP == LCD_COLOR16 311 ushort *d = (ushort *)dest; 312 #else 313 uchar *d = dest; 314 #endif 315 316 #if LCD_BPP == LCD_MONOCHROME 317 uchar rest = *d & -(1 << (8 - off)); 318 uchar sym; 319 #endif 320 for (i = 0; i < count; ++i) { 321 uchar c, bits; 322 323 c = *s++; 324 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 325 326 #if LCD_BPP == LCD_MONOCHROME 327 sym = (COLOR_MASK(lcd_color_fg) & bits) | 328 (COLOR_MASK(lcd_color_bg) & ~bits); 329 330 *d++ = rest | (sym >> off); 331 rest = sym << (8-off); 332 #elif LCD_BPP == LCD_COLOR8 333 for (c = 0; c < 8; ++c) { 334 *d++ = (bits & 0x80) ? 335 lcd_color_fg : lcd_color_bg; 336 bits <<= 1; 337 } 338 #elif LCD_BPP == LCD_COLOR16 339 for (c = 0; c < 8; ++c) { 340 *d++ = (bits & 0x80) ? 341 lcd_color_fg : lcd_color_bg; 342 bits <<= 1; 343 } 344 #endif 345 } 346 #if LCD_BPP == LCD_MONOCHROME 347 *d = rest | (*d & ((1 << (8 - off)) - 1)); 348 #endif 349 } 350 } 351 352 /*----------------------------------------------------------------------*/ 353 354 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 355 { 356 lcd_drawchars(x, y, s, strlen((char *)s)); 357 } 358 359 /*----------------------------------------------------------------------*/ 360 361 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 362 { 363 lcd_drawchars(x, y, &c, 1); 364 } 365 366 /************************************************************************/ 367 /** Small utility to check that you got the colours right */ 368 /************************************************************************/ 369 #ifdef LCD_TEST_PATTERN 370 371 #define N_BLK_VERT 2 372 #define N_BLK_HOR 3 373 374 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 375 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 376 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 377 }; 378 379 static void test_pattern(void) 380 { 381 ushort v_max = panel_info.vl_row; 382 ushort h_max = panel_info.vl_col; 383 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 384 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 385 ushort v, h; 386 uchar *pix = (uchar *)lcd_base; 387 388 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 389 h_max, v_max, h_step, v_step); 390 391 /* WARNING: Code silently assumes 8bit/pixel */ 392 for (v = 0; v < v_max; ++v) { 393 uchar iy = v / v_step; 394 for (h = 0; h < h_max; ++h) { 395 uchar ix = N_BLK_HOR * iy + h / h_step; 396 *pix++ = test_colors[ix]; 397 } 398 } 399 } 400 #endif /* LCD_TEST_PATTERN */ 401 402 403 /************************************************************************/ 404 /* ** GENERIC Initialization Routines */ 405 /************************************************************************/ 406 407 int lcd_get_size(int *line_length) 408 { 409 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 410 return *line_length * panel_info.vl_row; 411 } 412 413 int drv_lcd_init(void) 414 { 415 struct stdio_dev lcddev; 416 int rc; 417 418 lcd_base = (void *) gd->fb_base; 419 420 lcd_init(lcd_base); /* LCD initialization */ 421 422 /* Device initialization */ 423 memset(&lcddev, 0, sizeof(lcddev)); 424 425 strcpy(lcddev.name, "lcd"); 426 lcddev.ext = 0; /* No extensions */ 427 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 428 lcddev.putc = lcd_putc; /* 'putc' function */ 429 lcddev.puts = lcd_puts; /* 'puts' function */ 430 431 rc = stdio_register(&lcddev); 432 433 return (rc == 0) ? 1 : rc; 434 } 435 436 /*----------------------------------------------------------------------*/ 437 void lcd_clear(void) 438 { 439 #if LCD_BPP == LCD_MONOCHROME 440 /* Setting the palette */ 441 lcd_initcolregs(); 442 443 #elif LCD_BPP == LCD_COLOR8 444 /* Setting the palette */ 445 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 446 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 447 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 448 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 449 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 450 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 451 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 452 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 453 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 454 #endif 455 456 #ifndef CONFIG_SYS_WHITE_ON_BLACK 457 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 458 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 459 #else 460 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 461 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 462 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 463 464 #ifdef LCD_TEST_PATTERN 465 test_pattern(); 466 #else 467 /* set framebuffer to background color */ 468 memset((char *)lcd_base, 469 COLOR_MASK(lcd_getbgcolor()), 470 lcd_line_length * panel_info.vl_row); 471 #endif 472 /* Paint the logo and retrieve LCD base address */ 473 debug("[LCD] Drawing the logo...\n"); 474 lcd_console_address = lcd_logo(); 475 476 console_col = 0; 477 console_row = 0; 478 lcd_sync(); 479 } 480 481 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 482 char *const argv[]) 483 { 484 lcd_clear(); 485 return 0; 486 } 487 488 U_BOOT_CMD( 489 cls, 1, 1, do_lcd_clear, 490 "clear screen", 491 "" 492 ); 493 494 /*----------------------------------------------------------------------*/ 495 496 static int lcd_init(void *lcdbase) 497 { 498 /* Initialize the lcd controller */ 499 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 500 501 lcd_ctrl_init(lcdbase); 502 503 /* 504 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores 505 * the 'lcdbase' argument and uses custom lcd base address 506 * by setting up gd->fb_base. Check for this condition and fixup 507 * 'lcd_base' address. 508 */ 509 if ((unsigned long)lcdbase != gd->fb_base) 510 lcd_base = (void *)gd->fb_base; 511 512 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 513 514 lcd_get_size(&lcd_line_length); 515 lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 516 lcd_is_enabled = 1; 517 lcd_clear(); 518 lcd_enable(); 519 520 /* Initialize the console */ 521 console_col = 0; 522 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 523 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 524 #else 525 console_row = 1; /* leave 1 blank line below logo */ 526 #endif 527 528 return 0; 529 } 530 531 532 /************************************************************************/ 533 /* ** ROM capable initialization part - needed to reserve FB memory */ 534 /************************************************************************/ 535 /* 536 * This is called early in the system initialization to grab memory 537 * for the LCD controller. 538 * Returns new address for monitor, after reserving LCD buffer memory 539 * 540 * Note that this is running from ROM, so no write access to global data. 541 */ 542 ulong lcd_setmem(ulong addr) 543 { 544 ulong size; 545 int line_length; 546 547 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 548 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 549 550 size = lcd_get_size(&line_length); 551 552 /* Round up to nearest full page, or MMU section if defined */ 553 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 554 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 555 556 /* Allocate pages for the frame buffer. */ 557 addr -= size; 558 559 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 560 size >> 10, addr); 561 562 return addr; 563 } 564 565 /*----------------------------------------------------------------------*/ 566 567 static void lcd_setfgcolor(int color) 568 { 569 lcd_color_fg = color; 570 } 571 572 /*----------------------------------------------------------------------*/ 573 574 static void lcd_setbgcolor(int color) 575 { 576 lcd_color_bg = color; 577 } 578 579 /*----------------------------------------------------------------------*/ 580 581 int lcd_getfgcolor(void) 582 { 583 return lcd_color_fg; 584 } 585 586 /*----------------------------------------------------------------------*/ 587 588 static int lcd_getbgcolor(void) 589 { 590 return lcd_color_bg; 591 } 592 593 /************************************************************************/ 594 /* ** Chipset depending Bitmap / Logo stuff... */ 595 /************************************************************************/ 596 static inline ushort *configuration_get_cmap(void) 597 { 598 #if defined CONFIG_CPU_PXA 599 struct pxafb_info *fbi = &panel_info.pxa; 600 return (ushort *)fbi->palette; 601 #elif defined(CONFIG_MPC823) 602 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 603 cpm8xx_t *cp = &(immr->im_cpm); 604 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 605 #elif defined(CONFIG_ATMEL_LCD) 606 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 607 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 608 return panel_info.cmap; 609 #elif defined(CONFIG_LCD_LOGO) 610 return bmp_logo_palette; 611 #else 612 return NULL; 613 #endif 614 } 615 616 #ifdef CONFIG_LCD_LOGO 617 void bitmap_plot(int x, int y) 618 { 619 #ifdef CONFIG_ATMEL_LCD 620 uint *cmap = (uint *)bmp_logo_palette; 621 #else 622 ushort *cmap = (ushort *)bmp_logo_palette; 623 #endif 624 ushort i, j; 625 uchar *bmap; 626 uchar *fb; 627 ushort *fb16; 628 #if defined(CONFIG_MPC823) 629 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 630 cpm8xx_t *cp = &(immr->im_cpm); 631 #endif 632 unsigned bpix = NBITS(panel_info.vl_bpix); 633 634 debug("Logo: width %d height %d colors %d cmap %d\n", 635 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 636 ARRAY_SIZE(bmp_logo_palette)); 637 638 bmap = &bmp_logo_bitmap[0]; 639 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 640 641 if (bpix < 12) { 642 /* Leave room for default color map 643 * default case: generic system with no cmap (most likely 16bpp) 644 * cmap was set to the source palette, so no change is done. 645 * This avoids even more ifdefs in the next stanza 646 */ 647 #if defined(CONFIG_MPC823) 648 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 649 #elif defined(CONFIG_ATMEL_LCD) 650 cmap = (uint *)configuration_get_cmap(); 651 #else 652 cmap = configuration_get_cmap(); 653 #endif 654 655 WATCHDOG_RESET(); 656 657 /* Set color map */ 658 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 659 ushort colreg = bmp_logo_palette[i]; 660 #ifdef CONFIG_ATMEL_LCD 661 uint lut_entry; 662 #ifdef CONFIG_ATMEL_LCD_BGR555 663 lut_entry = ((colreg & 0x000F) << 11) | 664 ((colreg & 0x00F0) << 2) | 665 ((colreg & 0x0F00) >> 7); 666 #else /* CONFIG_ATMEL_LCD_RGB565 */ 667 lut_entry = ((colreg & 0x000F) << 1) | 668 ((colreg & 0x00F0) << 3) | 669 ((colreg & 0x0F00) << 4); 670 #endif 671 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 672 cmap++; 673 #else /* !CONFIG_ATMEL_LCD */ 674 #ifdef CONFIG_SYS_INVERT_COLORS 675 *cmap++ = 0xffff - colreg; 676 #else 677 *cmap++ = colreg; 678 #endif 679 #endif /* CONFIG_ATMEL_LCD */ 680 } 681 682 WATCHDOG_RESET(); 683 684 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 685 memcpy(fb, bmap, BMP_LOGO_WIDTH); 686 bmap += BMP_LOGO_WIDTH; 687 fb += panel_info.vl_col; 688 } 689 } 690 else { /* true color mode */ 691 u16 col16; 692 fb16 = (ushort *)fb; 693 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 694 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 695 col16 = bmp_logo_palette[(bmap[j]-16)]; 696 fb16[j] = 697 ((col16 & 0x000F) << 1) | 698 ((col16 & 0x00F0) << 3) | 699 ((col16 & 0x0F00) << 4); 700 } 701 bmap += BMP_LOGO_WIDTH; 702 fb16 += panel_info.vl_col; 703 } 704 } 705 706 WATCHDOG_RESET(); 707 lcd_sync(); 708 } 709 #else 710 static inline void bitmap_plot(int x, int y) {} 711 #endif /* CONFIG_LCD_LOGO */ 712 713 /*----------------------------------------------------------------------*/ 714 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 715 /* 716 * Display the BMP file located at address bmp_image. 717 * Only uncompressed. 718 */ 719 720 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 721 #define BMP_ALIGN_CENTER 0x7FFF 722 723 static void splash_align_axis(int *axis, unsigned long panel_size, 724 unsigned long picture_size) 725 { 726 unsigned long panel_picture_delta = panel_size - picture_size; 727 unsigned long axis_alignment; 728 729 if (*axis == BMP_ALIGN_CENTER) 730 axis_alignment = panel_picture_delta / 2; 731 else if (*axis < 0) 732 axis_alignment = panel_picture_delta + *axis + 1; 733 else 734 return; 735 736 *axis = max(0, axis_alignment); 737 } 738 #endif 739 740 741 #ifdef CONFIG_LCD_BMP_RLE8 742 743 #define BMP_RLE8_ESCAPE 0 744 #define BMP_RLE8_EOL 0 745 #define BMP_RLE8_EOBMP 1 746 #define BMP_RLE8_DELTA 2 747 748 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 749 int cnt) 750 { 751 while (cnt > 0) { 752 *(*fbp)++ = cmap[*bmap++]; 753 cnt--; 754 } 755 } 756 757 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 758 { 759 ushort *fb = *fbp; 760 int cnt_8copy = cnt >> 3; 761 762 cnt -= cnt_8copy << 3; 763 while (cnt_8copy > 0) { 764 *fb++ = c; 765 *fb++ = c; 766 *fb++ = c; 767 *fb++ = c; 768 *fb++ = c; 769 *fb++ = c; 770 *fb++ = c; 771 *fb++ = c; 772 cnt_8copy--; 773 } 774 while (cnt > 0) { 775 *fb++ = c; 776 cnt--; 777 } 778 *fbp = fb; 779 } 780 781 /* 782 * Do not call this function directly, must be called from lcd_display_bitmap. 783 */ 784 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 785 int x_off, int y_off) 786 { 787 uchar *bmap; 788 ulong width, height; 789 ulong cnt, runlen; 790 int x, y; 791 int decode = 1; 792 793 width = le32_to_cpu(bmp->header.width); 794 height = le32_to_cpu(bmp->header.height); 795 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 796 797 x = 0; 798 y = height - 1; 799 800 while (decode) { 801 if (bmap[0] == BMP_RLE8_ESCAPE) { 802 switch (bmap[1]) { 803 case BMP_RLE8_EOL: 804 /* end of line */ 805 bmap += 2; 806 x = 0; 807 y--; 808 /* 16bpix, 2-byte per pixel, width should *2 */ 809 fb -= (width * 2 + lcd_line_length); 810 break; 811 case BMP_RLE8_EOBMP: 812 /* end of bitmap */ 813 decode = 0; 814 break; 815 case BMP_RLE8_DELTA: 816 /* delta run */ 817 x += bmap[2]; 818 y -= bmap[3]; 819 /* 16bpix, 2-byte per pixel, x should *2 */ 820 fb = (uchar *) (lcd_base + (y + y_off - 1) 821 * lcd_line_length + (x + x_off) * 2); 822 bmap += 4; 823 break; 824 default: 825 /* unencoded run */ 826 runlen = bmap[1]; 827 bmap += 2; 828 if (y < height) { 829 if (x < width) { 830 if (x + runlen > width) 831 cnt = width - x; 832 else 833 cnt = runlen; 834 draw_unencoded_bitmap( 835 (ushort **)&fb, 836 bmap, cmap, cnt); 837 } 838 x += runlen; 839 } 840 bmap += runlen; 841 if (runlen & 1) 842 bmap++; 843 } 844 } else { 845 /* encoded run */ 846 if (y < height) { 847 runlen = bmap[0]; 848 if (x < width) { 849 /* aggregate the same code */ 850 while (bmap[0] == 0xff && 851 bmap[2] != BMP_RLE8_ESCAPE && 852 bmap[1] == bmap[3]) { 853 runlen += bmap[2]; 854 bmap += 2; 855 } 856 if (x + runlen > width) 857 cnt = width - x; 858 else 859 cnt = runlen; 860 draw_encoded_bitmap((ushort **)&fb, 861 cmap[bmap[1]], cnt); 862 } 863 x += runlen; 864 } 865 bmap += 2; 866 } 867 } 868 } 869 #endif 870 871 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 872 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 873 #else 874 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 875 #endif 876 877 #if defined(CONFIG_BMP_16BPP) 878 #if defined(CONFIG_ATMEL_LCD_BGR555) 879 static inline void fb_put_word(uchar **fb, uchar **from) 880 { 881 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 882 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 883 *from += 2; 884 } 885 #else 886 static inline void fb_put_word(uchar **fb, uchar **from) 887 { 888 *(*fb)++ = *(*from)++; 889 *(*fb)++ = *(*from)++; 890 } 891 #endif 892 #endif /* CONFIG_BMP_16BPP */ 893 894 int lcd_display_bitmap(ulong bmp_image, int x, int y) 895 { 896 #if !defined(CONFIG_MCC200) 897 ushort *cmap = NULL; 898 #endif 899 ushort *cmap_base = NULL; 900 ushort i, j; 901 uchar *fb; 902 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 903 uchar *bmap; 904 ushort padded_width; 905 unsigned long width, height, byte_width; 906 unsigned long pwidth = panel_info.vl_col; 907 unsigned colors, bpix, bmp_bpix; 908 909 if (!bmp || !(bmp->header.signature[0] == 'B' && 910 bmp->header.signature[1] == 'M')) { 911 printf("Error: no valid bmp image at %lx\n", bmp_image); 912 913 return 1; 914 } 915 916 width = le32_to_cpu(bmp->header.width); 917 height = le32_to_cpu(bmp->header.height); 918 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 919 colors = 1 << bmp_bpix; 920 921 bpix = NBITS(panel_info.vl_bpix); 922 923 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 924 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 925 bpix, bmp_bpix); 926 927 return 1; 928 } 929 930 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 931 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 932 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 933 bpix, 934 le16_to_cpu(bmp->header.bit_count)); 935 936 return 1; 937 } 938 939 debug("Display-bmp: %d x %d with %d colors\n", 940 (int)width, (int)height, (int)colors); 941 942 #if !defined(CONFIG_MCC200) 943 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 944 if (bmp_bpix == 8) { 945 cmap = configuration_get_cmap(); 946 cmap_base = cmap; 947 948 /* Set color map */ 949 for (i = 0; i < colors; ++i) { 950 bmp_color_table_entry_t cte = bmp->color_table[i]; 951 #if !defined(CONFIG_ATMEL_LCD) 952 ushort colreg = 953 ( ((cte.red) << 8) & 0xf800) | 954 ( ((cte.green) << 3) & 0x07e0) | 955 ( ((cte.blue) >> 3) & 0x001f) ; 956 #ifdef CONFIG_SYS_INVERT_COLORS 957 *cmap = 0xffff - colreg; 958 #else 959 *cmap = colreg; 960 #endif 961 #if defined(CONFIG_MPC823) 962 cmap--; 963 #else 964 cmap++; 965 #endif 966 #else /* CONFIG_ATMEL_LCD */ 967 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 968 #endif 969 } 970 } 971 #endif 972 973 /* 974 * BMP format for Monochrome assumes that the state of a 975 * pixel is described on a per Bit basis, not per Byte. 976 * So, in case of Monochrome BMP we should align widths 977 * on a byte boundary and convert them from Bit to Byte 978 * units. 979 * Probably, PXA250 and MPC823 process 1bpp BMP images in 980 * their own ways, so make the converting to be MCC200 981 * specific. 982 */ 983 #if defined(CONFIG_MCC200) 984 if (bpix == 1) { 985 width = ((width + 7) & ~7) >> 3; 986 x = ((x + 7) & ~7) >> 3; 987 pwidth= ((pwidth + 7) & ~7) >> 3; 988 } 989 #endif 990 991 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 992 993 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 994 splash_align_axis(&x, pwidth, width); 995 splash_align_axis(&y, panel_info.vl_row, height); 996 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 997 998 if ((x + width) > pwidth) 999 width = pwidth - x; 1000 if ((y + height) > panel_info.vl_row) 1001 height = panel_info.vl_row - y; 1002 1003 bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset); 1004 fb = (uchar *) (lcd_base + 1005 (y + height - 1) * lcd_line_length + x * bpix / 8); 1006 1007 switch (bmp_bpix) { 1008 case 1: /* pass through */ 1009 case 8: 1010 #ifdef CONFIG_LCD_BMP_RLE8 1011 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 1012 if (bpix != 16) { 1013 /* TODO implement render code for bpix != 16 */ 1014 printf("Error: only support 16 bpix"); 1015 return 1; 1016 } 1017 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1018 break; 1019 } 1020 #endif 1021 1022 if (bpix != 16) 1023 byte_width = width; 1024 else 1025 byte_width = width * 2; 1026 1027 for (i = 0; i < height; ++i) { 1028 WATCHDOG_RESET(); 1029 for (j = 0; j < width; j++) { 1030 if (bpix != 16) { 1031 FB_PUT_BYTE(fb, bmap); 1032 } else { 1033 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1034 fb += sizeof(uint16_t) / sizeof(*fb); 1035 } 1036 } 1037 bmap += (padded_width - width); 1038 fb -= byte_width + lcd_line_length; 1039 } 1040 break; 1041 1042 #if defined(CONFIG_BMP_16BPP) 1043 case 16: 1044 for (i = 0; i < height; ++i) { 1045 WATCHDOG_RESET(); 1046 for (j = 0; j < width; j++) 1047 fb_put_word(&fb, &bmap); 1048 1049 bmap += (padded_width - width) * 2; 1050 fb -= width * 2 + lcd_line_length; 1051 } 1052 break; 1053 #endif /* CONFIG_BMP_16BPP */ 1054 1055 #if defined(CONFIG_BMP_32BPP) 1056 case 32: 1057 for (i = 0; i < height; ++i) { 1058 for (j = 0; j < width; j++) { 1059 *(fb++) = *(bmap++); 1060 *(fb++) = *(bmap++); 1061 *(fb++) = *(bmap++); 1062 *(fb++) = *(bmap++); 1063 } 1064 fb -= lcd_line_length + width * (bpix / 8); 1065 } 1066 break; 1067 #endif /* CONFIG_BMP_32BPP */ 1068 default: 1069 break; 1070 }; 1071 1072 lcd_sync(); 1073 return 0; 1074 } 1075 #endif 1076 1077 static void *lcd_logo(void) 1078 { 1079 #ifdef CONFIG_SPLASH_SCREEN 1080 char *s; 1081 ulong addr; 1082 static int do_splash = 1; 1083 1084 if (do_splash && (s = getenv("splashimage")) != NULL) { 1085 int x = 0, y = 0; 1086 do_splash = 0; 1087 1088 if (splash_screen_prepare()) 1089 return (void *)lcd_base; 1090 1091 addr = simple_strtoul (s, NULL, 16); 1092 1093 splash_get_pos(&x, &y); 1094 1095 if (bmp_display(addr, x, y) == 0) 1096 return (void *)lcd_base; 1097 } 1098 #endif /* CONFIG_SPLASH_SCREEN */ 1099 1100 bitmap_plot(0, 0); 1101 1102 #ifdef CONFIG_LCD_INFO 1103 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1104 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1105 lcd_show_board_info(); 1106 #endif /* CONFIG_LCD_INFO */ 1107 1108 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1109 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1110 #else 1111 return (void *)lcd_base; 1112 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1113 } 1114 1115 #ifdef CONFIG_SPLASHIMAGE_GUARD 1116 static int on_splashimage(const char *name, const char *value, enum env_op op, 1117 int flags) 1118 { 1119 ulong addr; 1120 int aligned; 1121 1122 if (op == env_op_delete) 1123 return 0; 1124 1125 addr = simple_strtoul(value, NULL, 16); 1126 /* See README.displaying-bmps */ 1127 aligned = (addr % 4 == 2); 1128 if (!aligned) { 1129 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1130 return -1; 1131 } 1132 1133 return 0; 1134 } 1135 1136 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1137 #endif 1138 1139 void lcd_position_cursor(unsigned col, unsigned row) 1140 { 1141 console_col = min(col, CONSOLE_COLS - 1); 1142 console_row = min(row, CONSOLE_ROWS - 1); 1143 } 1144 1145 int lcd_get_pixel_width(void) 1146 { 1147 return panel_info.vl_col; 1148 } 1149 1150 int lcd_get_pixel_height(void) 1151 { 1152 return panel_info.vl_row; 1153 } 1154 1155 int lcd_get_screen_rows(void) 1156 { 1157 return CONSOLE_ROWS; 1158 } 1159 1160 int lcd_get_screen_columns(void) 1161 { 1162 return CONSOLE_COLS; 1163 } 1164 1165 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1166 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1167 { 1168 u32 stride; 1169 fdt32_t cells[2]; 1170 int ret; 1171 static const char format[] = 1172 #if LCD_BPP == LCD_COLOR16 1173 "r5g6b5"; 1174 #else 1175 ""; 1176 #endif 1177 1178 if (!format[0]) 1179 return -1; 1180 1181 stride = panel_info.vl_col * 2; 1182 1183 cells[0] = cpu_to_fdt32(gd->fb_base); 1184 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); 1185 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); 1186 if (ret < 0) 1187 return -1; 1188 1189 cells[0] = cpu_to_fdt32(panel_info.vl_col); 1190 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); 1191 if (ret < 0) 1192 return -1; 1193 1194 cells[0] = cpu_to_fdt32(panel_info.vl_row); 1195 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); 1196 if (ret < 0) 1197 return -1; 1198 1199 cells[0] = cpu_to_fdt32(stride); 1200 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); 1201 if (ret < 0) 1202 return -1; 1203 1204 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); 1205 if (ret < 0) 1206 return -1; 1207 1208 ret = fdt_delprop(blob, off, "status"); 1209 if (ret < 0) 1210 return -1; 1211 1212 return 0; 1213 } 1214 1215 int lcd_dt_simplefb_add_node(void *blob) 1216 { 1217 static const char compat[] = "simple-framebuffer"; 1218 static const char disabled[] = "disabled"; 1219 int off, ret; 1220 1221 off = fdt_add_subnode(blob, 0, "framebuffer"); 1222 if (off < 0) 1223 return -1; 1224 1225 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1226 if (ret < 0) 1227 return -1; 1228 1229 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1230 if (ret < 0) 1231 return -1; 1232 1233 return lcd_dt_simplefb_configure_node(blob, off); 1234 } 1235 1236 int lcd_dt_simplefb_enable_existing_node(void *blob) 1237 { 1238 int off; 1239 1240 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1241 if (off < 0) 1242 return -1; 1243 1244 return lcd_dt_simplefb_configure_node(blob, off); 1245 } 1246 #endif 1247