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 #if defined(CONFIG_LCD_DT_SIMPLEFB) 61 #include <libfdt.h> 62 #endif 63 64 /************************************************************************/ 65 /* ** FONT DATA */ 66 /************************************************************************/ 67 #include <video_font.h> /* Get font data, width and height */ 68 #include <video_font_data.h> 69 70 /************************************************************************/ 71 /* ** LOGO DATA */ 72 /************************************************************************/ 73 #ifdef CONFIG_LCD_LOGO 74 # include <bmp_logo.h> /* Get logo data, width and height */ 75 # include <bmp_logo_data.h> 76 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 77 # error Default Color Map overlaps with Logo Color Map 78 # endif 79 #endif 80 81 #ifndef CONFIG_LCD_ALIGNMENT 82 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 83 #endif 84 85 /* By default we scroll by a single line */ 86 #ifndef CONFIG_CONSOLE_SCROLL_LINES 87 #define CONFIG_CONSOLE_SCROLL_LINES 1 88 #endif 89 90 /************************************************************************/ 91 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 92 /************************************************************************/ 93 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 94 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 95 / VIDEO_FONT_HEIGHT) 96 #else 97 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 98 #endif 99 100 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 101 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 102 #define CONSOLE_ROW_FIRST lcd_console_address 103 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 104 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 105 - CONSOLE_ROW_SIZE) 106 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 107 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 108 109 #if LCD_BPP == LCD_MONOCHROME 110 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 111 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 112 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 113 # define COLOR_MASK(c) (c) 114 #else 115 # error Unsupported LCD BPP. 116 #endif 117 118 DECLARE_GLOBAL_DATA_PTR; 119 120 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 121 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 122 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 123 124 static int lcd_init(void *lcdbase); 125 126 static void *lcd_logo(void); 127 128 static int lcd_getbgcolor(void); 129 static void lcd_setfgcolor(int color); 130 static void lcd_setbgcolor(int color); 131 132 static int lcd_color_fg; 133 static int lcd_color_bg; 134 int lcd_line_length; 135 136 char lcd_is_enabled = 0; 137 138 static short console_col; 139 static short console_row; 140 141 static void *lcd_console_address; 142 static void *lcd_base; /* Start of framebuffer memory */ 143 144 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 145 146 /************************************************************************/ 147 148 /* Flush LCD activity to the caches */ 149 void lcd_sync(void) 150 { 151 /* 152 * flush_dcache_range() is declared in common.h but it seems that some 153 * architectures do not actually implement it. Is there a way to find 154 * out whether it exists? For now, ARM is safe. 155 */ 156 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 157 int line_length; 158 159 if (lcd_flush_dcache) 160 flush_dcache_range((u32)lcd_base, 161 (u32)(lcd_base + lcd_get_size(&line_length))); 162 #endif 163 } 164 165 void lcd_set_flush_dcache(int flush) 166 { 167 lcd_flush_dcache = (flush != 0); 168 } 169 170 /*----------------------------------------------------------------------*/ 171 172 static void console_scrollup(void) 173 { 174 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 175 176 /* Copy up rows ignoring those that will be overwritten */ 177 memcpy(CONSOLE_ROW_FIRST, 178 lcd_console_address + CONSOLE_ROW_SIZE * rows, 179 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 180 181 /* Clear the last rows */ 182 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 183 COLOR_MASK(lcd_color_bg), 184 CONSOLE_ROW_SIZE * rows); 185 186 lcd_sync(); 187 console_row -= rows; 188 } 189 190 /*----------------------------------------------------------------------*/ 191 192 static inline void console_back(void) 193 { 194 if (--console_col < 0) { 195 console_col = CONSOLE_COLS-1 ; 196 if (--console_row < 0) 197 console_row = 0; 198 } 199 200 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 201 console_row * VIDEO_FONT_HEIGHT, ' '); 202 } 203 204 /*----------------------------------------------------------------------*/ 205 206 static inline void console_newline(void) 207 { 208 console_col = 0; 209 210 /* Check if we need to scroll the terminal */ 211 if (++console_row >= CONSOLE_ROWS) 212 console_scrollup(); 213 else 214 lcd_sync(); 215 } 216 217 /*----------------------------------------------------------------------*/ 218 219 void lcd_putc(const char c) 220 { 221 if (!lcd_is_enabled) { 222 serial_putc(c); 223 224 return; 225 } 226 227 switch (c) { 228 case '\r': 229 console_col = 0; 230 231 return; 232 case '\n': 233 console_newline(); 234 235 return; 236 case '\t': /* Tab (8 chars alignment) */ 237 console_col += 8; 238 console_col &= ~7; 239 240 if (console_col >= CONSOLE_COLS) 241 console_newline(); 242 243 return; 244 case '\b': 245 console_back(); 246 247 return; 248 default: 249 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 250 console_row * VIDEO_FONT_HEIGHT, c); 251 if (++console_col >= CONSOLE_COLS) 252 console_newline(); 253 } 254 } 255 256 /*----------------------------------------------------------------------*/ 257 258 void lcd_puts(const char *s) 259 { 260 if (!lcd_is_enabled) { 261 serial_puts(s); 262 263 return; 264 } 265 266 while (*s) 267 lcd_putc(*s++); 268 269 lcd_sync(); 270 } 271 272 /*----------------------------------------------------------------------*/ 273 274 void lcd_printf(const char *fmt, ...) 275 { 276 va_list args; 277 char buf[CONFIG_SYS_PBSIZE]; 278 279 va_start(args, fmt); 280 vsprintf(buf, fmt, args); 281 va_end(args); 282 283 lcd_puts(buf); 284 } 285 286 /************************************************************************/ 287 /* ** Low-Level Graphics Routines */ 288 /************************************************************************/ 289 290 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 291 { 292 uchar *dest; 293 ushort row; 294 295 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 296 y += BMP_LOGO_HEIGHT; 297 #endif 298 299 #if LCD_BPP == LCD_MONOCHROME 300 ushort off = x * (1 << LCD_BPP) % 8; 301 #endif 302 303 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 304 305 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 306 uchar *s = str; 307 int i; 308 #if LCD_BPP == LCD_COLOR16 309 ushort *d = (ushort *)dest; 310 #else 311 uchar *d = dest; 312 #endif 313 314 #if LCD_BPP == LCD_MONOCHROME 315 uchar rest = *d & -(1 << (8 - off)); 316 uchar sym; 317 #endif 318 for (i = 0; i < count; ++i) { 319 uchar c, bits; 320 321 c = *s++; 322 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 323 324 #if LCD_BPP == LCD_MONOCHROME 325 sym = (COLOR_MASK(lcd_color_fg) & bits) | 326 (COLOR_MASK(lcd_color_bg) & ~bits); 327 328 *d++ = rest | (sym >> off); 329 rest = sym << (8-off); 330 #elif LCD_BPP == LCD_COLOR8 331 for (c = 0; c < 8; ++c) { 332 *d++ = (bits & 0x80) ? 333 lcd_color_fg : lcd_color_bg; 334 bits <<= 1; 335 } 336 #elif LCD_BPP == LCD_COLOR16 337 for (c = 0; c < 8; ++c) { 338 *d++ = (bits & 0x80) ? 339 lcd_color_fg : lcd_color_bg; 340 bits <<= 1; 341 } 342 #endif 343 } 344 #if LCD_BPP == LCD_MONOCHROME 345 *d = rest | (*d & ((1 << (8 - off)) - 1)); 346 #endif 347 } 348 } 349 350 /*----------------------------------------------------------------------*/ 351 352 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 353 { 354 lcd_drawchars(x, y, s, strlen((char *)s)); 355 } 356 357 /*----------------------------------------------------------------------*/ 358 359 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 360 { 361 lcd_drawchars(x, y, &c, 1); 362 } 363 364 /************************************************************************/ 365 /** Small utility to check that you got the colours right */ 366 /************************************************************************/ 367 #ifdef LCD_TEST_PATTERN 368 369 #define N_BLK_VERT 2 370 #define N_BLK_HOR 3 371 372 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 373 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 374 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 375 }; 376 377 static void test_pattern(void) 378 { 379 ushort v_max = panel_info.vl_row; 380 ushort h_max = panel_info.vl_col; 381 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 382 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 383 ushort v, h; 384 uchar *pix = (uchar *)lcd_base; 385 386 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 387 h_max, v_max, h_step, v_step); 388 389 /* WARNING: Code silently assumes 8bit/pixel */ 390 for (v = 0; v < v_max; ++v) { 391 uchar iy = v / v_step; 392 for (h = 0; h < h_max; ++h) { 393 uchar ix = N_BLK_HOR * iy + h / h_step; 394 *pix++ = test_colors[ix]; 395 } 396 } 397 } 398 #endif /* LCD_TEST_PATTERN */ 399 400 401 /************************************************************************/ 402 /* ** GENERIC Initialization Routines */ 403 /************************************************************************/ 404 405 int lcd_get_size(int *line_length) 406 { 407 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 408 return *line_length * panel_info.vl_row; 409 } 410 411 int drv_lcd_init(void) 412 { 413 struct stdio_dev lcddev; 414 int rc; 415 416 lcd_base = (void *) gd->fb_base; 417 418 lcd_init(lcd_base); /* LCD initialization */ 419 420 /* Device initialization */ 421 memset(&lcddev, 0, sizeof(lcddev)); 422 423 strcpy(lcddev.name, "lcd"); 424 lcddev.ext = 0; /* No extensions */ 425 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 426 lcddev.putc = lcd_putc; /* 'putc' function */ 427 lcddev.puts = lcd_puts; /* 'puts' function */ 428 429 rc = stdio_register(&lcddev); 430 431 return (rc == 0) ? 1 : rc; 432 } 433 434 /*----------------------------------------------------------------------*/ 435 void lcd_clear(void) 436 { 437 #if LCD_BPP == LCD_MONOCHROME 438 /* Setting the palette */ 439 lcd_initcolregs(); 440 441 #elif LCD_BPP == LCD_COLOR8 442 /* Setting the palette */ 443 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 444 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 445 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 446 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 447 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 448 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 449 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 450 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 451 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 452 #endif 453 454 #ifndef CONFIG_SYS_WHITE_ON_BLACK 455 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 456 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 457 #else 458 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 459 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 460 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 461 462 #ifdef LCD_TEST_PATTERN 463 test_pattern(); 464 #else 465 /* set framebuffer to background color */ 466 memset((char *)lcd_base, 467 COLOR_MASK(lcd_getbgcolor()), 468 lcd_line_length * panel_info.vl_row); 469 #endif 470 /* Paint the logo and retrieve LCD base address */ 471 debug("[LCD] Drawing the logo...\n"); 472 lcd_console_address = lcd_logo(); 473 474 console_col = 0; 475 console_row = 0; 476 lcd_sync(); 477 } 478 479 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 480 char *const argv[]) 481 { 482 lcd_clear(); 483 return 0; 484 } 485 486 U_BOOT_CMD( 487 cls, 1, 1, do_lcd_clear, 488 "clear screen", 489 "" 490 ); 491 492 /*----------------------------------------------------------------------*/ 493 494 static int lcd_init(void *lcdbase) 495 { 496 /* Initialize the lcd controller */ 497 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 498 499 lcd_ctrl_init(lcdbase); 500 501 /* 502 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores 503 * the 'lcdbase' argument and uses custom lcd base address 504 * by setting up gd->fb_base. Check for this condition and fixup 505 * 'lcd_base' address. 506 */ 507 if ((unsigned long)lcdbase != gd->fb_base) 508 lcd_base = (void *)gd->fb_base; 509 510 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 511 512 lcd_get_size(&lcd_line_length); 513 lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 514 lcd_is_enabled = 1; 515 lcd_clear(); 516 lcd_enable(); 517 518 /* Initialize the console */ 519 console_col = 0; 520 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 521 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 522 #else 523 console_row = 1; /* leave 1 blank line below logo */ 524 #endif 525 526 return 0; 527 } 528 529 530 /************************************************************************/ 531 /* ** ROM capable initialization part - needed to reserve FB memory */ 532 /************************************************************************/ 533 /* 534 * This is called early in the system initialization to grab memory 535 * for the LCD controller. 536 * Returns new address for monitor, after reserving LCD buffer memory 537 * 538 * Note that this is running from ROM, so no write access to global data. 539 */ 540 ulong lcd_setmem(ulong addr) 541 { 542 ulong size; 543 int line_length; 544 545 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 546 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 547 548 size = lcd_get_size(&line_length); 549 550 /* Round up to nearest full page, or MMU section if defined */ 551 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 552 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 553 554 /* Allocate pages for the frame buffer. */ 555 addr -= size; 556 557 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 558 size >> 10, addr); 559 560 return addr; 561 } 562 563 /*----------------------------------------------------------------------*/ 564 565 static void lcd_setfgcolor(int color) 566 { 567 lcd_color_fg = color; 568 } 569 570 /*----------------------------------------------------------------------*/ 571 572 static void lcd_setbgcolor(int color) 573 { 574 lcd_color_bg = color; 575 } 576 577 /*----------------------------------------------------------------------*/ 578 579 int lcd_getfgcolor(void) 580 { 581 return lcd_color_fg; 582 } 583 584 /*----------------------------------------------------------------------*/ 585 586 static int lcd_getbgcolor(void) 587 { 588 return lcd_color_bg; 589 } 590 591 /************************************************************************/ 592 /* ** Chipset depending Bitmap / Logo stuff... */ 593 /************************************************************************/ 594 static inline ushort *configuration_get_cmap(void) 595 { 596 #if defined CONFIG_CPU_PXA 597 struct pxafb_info *fbi = &panel_info.pxa; 598 return (ushort *)fbi->palette; 599 #elif defined(CONFIG_MPC823) 600 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 601 cpm8xx_t *cp = &(immr->im_cpm); 602 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 603 #elif defined(CONFIG_ATMEL_LCD) 604 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 605 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 606 return panel_info.cmap; 607 #elif defined(CONFIG_LCD_LOGO) 608 return bmp_logo_palette; 609 #else 610 return NULL; 611 #endif 612 } 613 614 #ifdef CONFIG_LCD_LOGO 615 void bitmap_plot(int x, int y) 616 { 617 #ifdef CONFIG_ATMEL_LCD 618 uint *cmap = (uint *)bmp_logo_palette; 619 #else 620 ushort *cmap = (ushort *)bmp_logo_palette; 621 #endif 622 ushort i, j; 623 uchar *bmap; 624 uchar *fb; 625 ushort *fb16; 626 #if defined(CONFIG_MPC823) 627 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 628 cpm8xx_t *cp = &(immr->im_cpm); 629 #endif 630 unsigned bpix = NBITS(panel_info.vl_bpix); 631 632 debug("Logo: width %d height %d colors %d cmap %d\n", 633 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 634 ARRAY_SIZE(bmp_logo_palette)); 635 636 bmap = &bmp_logo_bitmap[0]; 637 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 638 639 if (bpix < 12) { 640 /* Leave room for default color map 641 * default case: generic system with no cmap (most likely 16bpp) 642 * cmap was set to the source palette, so no change is done. 643 * This avoids even more ifdefs in the next stanza 644 */ 645 #if defined(CONFIG_MPC823) 646 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 647 #elif defined(CONFIG_ATMEL_LCD) 648 cmap = (uint *)configuration_get_cmap(); 649 #else 650 cmap = configuration_get_cmap(); 651 #endif 652 653 WATCHDOG_RESET(); 654 655 /* Set color map */ 656 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 657 ushort colreg = bmp_logo_palette[i]; 658 #ifdef CONFIG_ATMEL_LCD 659 uint lut_entry; 660 #ifdef CONFIG_ATMEL_LCD_BGR555 661 lut_entry = ((colreg & 0x000F) << 11) | 662 ((colreg & 0x00F0) << 2) | 663 ((colreg & 0x0F00) >> 7); 664 #else /* CONFIG_ATMEL_LCD_RGB565 */ 665 lut_entry = ((colreg & 0x000F) << 1) | 666 ((colreg & 0x00F0) << 3) | 667 ((colreg & 0x0F00) << 4); 668 #endif 669 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 670 cmap++; 671 #else /* !CONFIG_ATMEL_LCD */ 672 #ifdef CONFIG_SYS_INVERT_COLORS 673 *cmap++ = 0xffff - colreg; 674 #else 675 *cmap++ = colreg; 676 #endif 677 #endif /* CONFIG_ATMEL_LCD */ 678 } 679 680 WATCHDOG_RESET(); 681 682 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 683 memcpy(fb, bmap, BMP_LOGO_WIDTH); 684 bmap += BMP_LOGO_WIDTH; 685 fb += panel_info.vl_col; 686 } 687 } 688 else { /* true color mode */ 689 u16 col16; 690 fb16 = (ushort *)fb; 691 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 692 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 693 col16 = bmp_logo_palette[(bmap[j]-16)]; 694 fb16[j] = 695 ((col16 & 0x000F) << 1) | 696 ((col16 & 0x00F0) << 3) | 697 ((col16 & 0x0F00) << 4); 698 } 699 bmap += BMP_LOGO_WIDTH; 700 fb16 += panel_info.vl_col; 701 } 702 } 703 704 WATCHDOG_RESET(); 705 lcd_sync(); 706 } 707 #else 708 static inline void bitmap_plot(int x, int y) {} 709 #endif /* CONFIG_LCD_LOGO */ 710 711 /*----------------------------------------------------------------------*/ 712 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 713 /* 714 * Display the BMP file located at address bmp_image. 715 * Only uncompressed. 716 */ 717 718 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 719 #define BMP_ALIGN_CENTER 0x7FFF 720 721 static void splash_align_axis(int *axis, unsigned long panel_size, 722 unsigned long picture_size) 723 { 724 unsigned long panel_picture_delta = panel_size - picture_size; 725 unsigned long axis_alignment; 726 727 if (*axis == BMP_ALIGN_CENTER) 728 axis_alignment = panel_picture_delta / 2; 729 else if (*axis < 0) 730 axis_alignment = panel_picture_delta + *axis + 1; 731 else 732 return; 733 734 *axis = max(0, axis_alignment); 735 } 736 #endif 737 738 739 #ifdef CONFIG_LCD_BMP_RLE8 740 741 #define BMP_RLE8_ESCAPE 0 742 #define BMP_RLE8_EOL 0 743 #define BMP_RLE8_EOBMP 1 744 #define BMP_RLE8_DELTA 2 745 746 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 747 int cnt) 748 { 749 while (cnt > 0) { 750 *(*fbp)++ = cmap[*bmap++]; 751 cnt--; 752 } 753 } 754 755 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 756 { 757 ushort *fb = *fbp; 758 int cnt_8copy = cnt >> 3; 759 760 cnt -= cnt_8copy << 3; 761 while (cnt_8copy > 0) { 762 *fb++ = c; 763 *fb++ = c; 764 *fb++ = c; 765 *fb++ = c; 766 *fb++ = c; 767 *fb++ = c; 768 *fb++ = c; 769 *fb++ = c; 770 cnt_8copy--; 771 } 772 while (cnt > 0) { 773 *fb++ = c; 774 cnt--; 775 } 776 *fbp = fb; 777 } 778 779 /* 780 * Do not call this function directly, must be called from lcd_display_bitmap. 781 */ 782 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 783 int x_off, int y_off) 784 { 785 uchar *bmap; 786 ulong width, height; 787 ulong cnt, runlen; 788 int x, y; 789 int decode = 1; 790 791 width = le32_to_cpu(bmp->header.width); 792 height = le32_to_cpu(bmp->header.height); 793 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 794 795 x = 0; 796 y = height - 1; 797 798 while (decode) { 799 if (bmap[0] == BMP_RLE8_ESCAPE) { 800 switch (bmap[1]) { 801 case BMP_RLE8_EOL: 802 /* end of line */ 803 bmap += 2; 804 x = 0; 805 y--; 806 /* 16bpix, 2-byte per pixel, width should *2 */ 807 fb -= (width * 2 + lcd_line_length); 808 break; 809 case BMP_RLE8_EOBMP: 810 /* end of bitmap */ 811 decode = 0; 812 break; 813 case BMP_RLE8_DELTA: 814 /* delta run */ 815 x += bmap[2]; 816 y -= bmap[3]; 817 /* 16bpix, 2-byte per pixel, x should *2 */ 818 fb = (uchar *) (lcd_base + (y + y_off - 1) 819 * lcd_line_length + (x + x_off) * 2); 820 bmap += 4; 821 break; 822 default: 823 /* unencoded run */ 824 runlen = bmap[1]; 825 bmap += 2; 826 if (y < height) { 827 if (x < width) { 828 if (x + runlen > width) 829 cnt = width - x; 830 else 831 cnt = runlen; 832 draw_unencoded_bitmap( 833 (ushort **)&fb, 834 bmap, cmap, cnt); 835 } 836 x += runlen; 837 } 838 bmap += runlen; 839 if (runlen & 1) 840 bmap++; 841 } 842 } else { 843 /* encoded run */ 844 if (y < height) { 845 runlen = bmap[0]; 846 if (x < width) { 847 /* aggregate the same code */ 848 while (bmap[0] == 0xff && 849 bmap[2] != BMP_RLE8_ESCAPE && 850 bmap[1] == bmap[3]) { 851 runlen += bmap[2]; 852 bmap += 2; 853 } 854 if (x + runlen > width) 855 cnt = width - x; 856 else 857 cnt = runlen; 858 draw_encoded_bitmap((ushort **)&fb, 859 cmap[bmap[1]], cnt); 860 } 861 x += runlen; 862 } 863 bmap += 2; 864 } 865 } 866 } 867 #endif 868 869 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 870 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 871 #else 872 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 873 #endif 874 875 #if defined(CONFIG_BMP_16BPP) 876 #if defined(CONFIG_ATMEL_LCD_BGR555) 877 static inline void fb_put_word(uchar **fb, uchar **from) 878 { 879 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 880 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 881 *from += 2; 882 } 883 #else 884 static inline void fb_put_word(uchar **fb, uchar **from) 885 { 886 *(*fb)++ = *(*from)++; 887 *(*fb)++ = *(*from)++; 888 } 889 #endif 890 #endif /* CONFIG_BMP_16BPP */ 891 892 int lcd_display_bitmap(ulong bmp_image, int x, int y) 893 { 894 #if !defined(CONFIG_MCC200) 895 ushort *cmap = NULL; 896 #endif 897 ushort *cmap_base = NULL; 898 ushort i, j; 899 uchar *fb; 900 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 901 uchar *bmap; 902 ushort padded_width; 903 unsigned long width, height, byte_width; 904 unsigned long pwidth = panel_info.vl_col; 905 unsigned colors, bpix, bmp_bpix; 906 907 if (!bmp || !(bmp->header.signature[0] == 'B' && 908 bmp->header.signature[1] == 'M')) { 909 printf("Error: no valid bmp image at %lx\n", bmp_image); 910 911 return 1; 912 } 913 914 width = le32_to_cpu(bmp->header.width); 915 height = le32_to_cpu(bmp->header.height); 916 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 917 colors = 1 << bmp_bpix; 918 919 bpix = NBITS(panel_info.vl_bpix); 920 921 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 922 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 923 bpix, bmp_bpix); 924 925 return 1; 926 } 927 928 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 929 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 930 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 931 bpix, 932 le16_to_cpu(bmp->header.bit_count)); 933 934 return 1; 935 } 936 937 debug("Display-bmp: %d x %d with %d colors\n", 938 (int)width, (int)height, (int)colors); 939 940 #if !defined(CONFIG_MCC200) 941 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 942 if (bmp_bpix == 8) { 943 cmap = configuration_get_cmap(); 944 cmap_base = cmap; 945 946 /* Set color map */ 947 for (i = 0; i < colors; ++i) { 948 bmp_color_table_entry_t cte = bmp->color_table[i]; 949 #if !defined(CONFIG_ATMEL_LCD) 950 ushort colreg = 951 ( ((cte.red) << 8) & 0xf800) | 952 ( ((cte.green) << 3) & 0x07e0) | 953 ( ((cte.blue) >> 3) & 0x001f) ; 954 #ifdef CONFIG_SYS_INVERT_COLORS 955 *cmap = 0xffff - colreg; 956 #else 957 *cmap = colreg; 958 #endif 959 #if defined(CONFIG_MPC823) 960 cmap--; 961 #else 962 cmap++; 963 #endif 964 #else /* CONFIG_ATMEL_LCD */ 965 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 966 #endif 967 } 968 } 969 #endif 970 971 /* 972 * BMP format for Monochrome assumes that the state of a 973 * pixel is described on a per Bit basis, not per Byte. 974 * So, in case of Monochrome BMP we should align widths 975 * on a byte boundary and convert them from Bit to Byte 976 * units. 977 * Probably, PXA250 and MPC823 process 1bpp BMP images in 978 * their own ways, so make the converting to be MCC200 979 * specific. 980 */ 981 #if defined(CONFIG_MCC200) 982 if (bpix == 1) { 983 width = ((width + 7) & ~7) >> 3; 984 x = ((x + 7) & ~7) >> 3; 985 pwidth= ((pwidth + 7) & ~7) >> 3; 986 } 987 #endif 988 989 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 990 991 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 992 splash_align_axis(&x, pwidth, width); 993 splash_align_axis(&y, panel_info.vl_row, height); 994 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 995 996 if ((x + width) > pwidth) 997 width = pwidth - x; 998 if ((y + height) > panel_info.vl_row) 999 height = panel_info.vl_row - y; 1000 1001 bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset); 1002 fb = (uchar *) (lcd_base + 1003 (y + height - 1) * lcd_line_length + x * bpix / 8); 1004 1005 switch (bmp_bpix) { 1006 case 1: /* pass through */ 1007 case 8: 1008 #ifdef CONFIG_LCD_BMP_RLE8 1009 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 1010 if (bpix != 16) { 1011 /* TODO implement render code for bpix != 16 */ 1012 printf("Error: only support 16 bpix"); 1013 return 1; 1014 } 1015 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1016 break; 1017 } 1018 #endif 1019 1020 if (bpix != 16) 1021 byte_width = width; 1022 else 1023 byte_width = width * 2; 1024 1025 for (i = 0; i < height; ++i) { 1026 WATCHDOG_RESET(); 1027 for (j = 0; j < width; j++) { 1028 if (bpix != 16) { 1029 FB_PUT_BYTE(fb, bmap); 1030 } else { 1031 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1032 fb += sizeof(uint16_t) / sizeof(*fb); 1033 } 1034 } 1035 bmap += (padded_width - width); 1036 fb -= byte_width + lcd_line_length; 1037 } 1038 break; 1039 1040 #if defined(CONFIG_BMP_16BPP) 1041 case 16: 1042 for (i = 0; i < height; ++i) { 1043 WATCHDOG_RESET(); 1044 for (j = 0; j < width; j++) 1045 fb_put_word(&fb, &bmap); 1046 1047 bmap += (padded_width - width) * 2; 1048 fb -= width * 2 + lcd_line_length; 1049 } 1050 break; 1051 #endif /* CONFIG_BMP_16BPP */ 1052 1053 #if defined(CONFIG_BMP_32BPP) 1054 case 32: 1055 for (i = 0; i < height; ++i) { 1056 for (j = 0; j < width; j++) { 1057 *(fb++) = *(bmap++); 1058 *(fb++) = *(bmap++); 1059 *(fb++) = *(bmap++); 1060 *(fb++) = *(bmap++); 1061 } 1062 fb -= lcd_line_length + width * (bpix / 8); 1063 } 1064 break; 1065 #endif /* CONFIG_BMP_32BPP */ 1066 default: 1067 break; 1068 }; 1069 1070 lcd_sync(); 1071 return 0; 1072 } 1073 #endif 1074 1075 #ifdef CONFIG_SPLASH_SCREEN_PREPARE 1076 static inline int splash_screen_prepare(void) 1077 { 1078 return board_splash_screen_prepare(); 1079 } 1080 #else 1081 static inline int splash_screen_prepare(void) 1082 { 1083 return 0; 1084 } 1085 #endif 1086 1087 static void *lcd_logo(void) 1088 { 1089 #ifdef CONFIG_SPLASH_SCREEN 1090 char *s; 1091 ulong addr; 1092 static int do_splash = 1; 1093 1094 if (do_splash && (s = getenv("splashimage")) != NULL) { 1095 int x = 0, y = 0; 1096 do_splash = 0; 1097 1098 if (splash_screen_prepare()) 1099 return (void *)gd->fb_base; 1100 1101 addr = simple_strtoul (s, NULL, 16); 1102 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 1103 s = getenv("splashpos"); 1104 if (s != NULL) { 1105 if (s[0] == 'm') 1106 x = BMP_ALIGN_CENTER; 1107 else 1108 x = simple_strtol(s, NULL, 0); 1109 1110 s = strchr(s + 1, ','); 1111 if (s != NULL) { 1112 if (s[1] == 'm') 1113 y = BMP_ALIGN_CENTER; 1114 else 1115 y = simple_strtol (s + 1, NULL, 0); 1116 } 1117 } 1118 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 1119 1120 if (bmp_display(addr, x, y) == 0) 1121 return (void *)lcd_base; 1122 } 1123 #endif /* CONFIG_SPLASH_SCREEN */ 1124 1125 bitmap_plot(0, 0); 1126 1127 #ifdef CONFIG_LCD_INFO 1128 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1129 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1130 lcd_show_board_info(); 1131 #endif /* CONFIG_LCD_INFO */ 1132 1133 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1134 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1135 #else 1136 return (void *)lcd_base; 1137 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1138 } 1139 1140 #ifdef CONFIG_SPLASHIMAGE_GUARD 1141 static int on_splashimage(const char *name, const char *value, enum env_op op, 1142 int flags) 1143 { 1144 ulong addr; 1145 int aligned; 1146 1147 if (op == env_op_delete) 1148 return 0; 1149 1150 addr = simple_strtoul(value, NULL, 16); 1151 /* See README.displaying-bmps */ 1152 aligned = (addr % 4 == 2); 1153 if (!aligned) { 1154 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1155 return -1; 1156 } 1157 1158 return 0; 1159 } 1160 1161 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1162 #endif 1163 1164 void lcd_position_cursor(unsigned col, unsigned row) 1165 { 1166 console_col = min(col, CONSOLE_COLS - 1); 1167 console_row = min(row, CONSOLE_ROWS - 1); 1168 } 1169 1170 int lcd_get_pixel_width(void) 1171 { 1172 return panel_info.vl_col; 1173 } 1174 1175 int lcd_get_pixel_height(void) 1176 { 1177 return panel_info.vl_row; 1178 } 1179 1180 int lcd_get_screen_rows(void) 1181 { 1182 return CONSOLE_ROWS; 1183 } 1184 1185 int lcd_get_screen_columns(void) 1186 { 1187 return CONSOLE_COLS; 1188 } 1189 1190 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1191 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1192 { 1193 u32 stride; 1194 fdt32_t cells[2]; 1195 int ret; 1196 const char format[] = 1197 #if LCD_BPP == LCD_COLOR16 1198 "r5g6b5"; 1199 #else 1200 ""; 1201 #endif 1202 1203 if (!format[0]) 1204 return -1; 1205 1206 stride = panel_info.vl_col * 2; 1207 1208 cells[0] = cpu_to_fdt32(gd->fb_base); 1209 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); 1210 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); 1211 if (ret < 0) 1212 return -1; 1213 1214 cells[0] = cpu_to_fdt32(panel_info.vl_col); 1215 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); 1216 if (ret < 0) 1217 return -1; 1218 1219 cells[0] = cpu_to_fdt32(panel_info.vl_row); 1220 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); 1221 if (ret < 0) 1222 return -1; 1223 1224 cells[0] = cpu_to_fdt32(stride); 1225 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); 1226 if (ret < 0) 1227 return -1; 1228 1229 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); 1230 if (ret < 0) 1231 return -1; 1232 1233 ret = fdt_delprop(blob, off, "status"); 1234 if (ret < 0) 1235 return -1; 1236 1237 return 0; 1238 } 1239 1240 int lcd_dt_simplefb_add_node(void *blob) 1241 { 1242 const char compat[] = "simple-framebuffer"; 1243 const char disabled[] = "disabled"; 1244 int off, ret; 1245 1246 off = fdt_add_subnode(blob, 0, "framebuffer"); 1247 if (off < 0) 1248 return -1; 1249 1250 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1251 if (ret < 0) 1252 return -1; 1253 1254 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1255 if (ret < 0) 1256 return -1; 1257 1258 return lcd_dt_simplefb_configure_node(blob, off); 1259 } 1260 1261 int lcd_dt_simplefb_enable_existing_node(void *blob) 1262 { 1263 int off; 1264 1265 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1266 if (off < 0) 1267 return -1; 1268 1269 return lcd_dt_simplefb_configure_node(blob, off); 1270 } 1271 #endif 1272