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 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10 /************************************************************************/ 11 /* ** HEADER FILES */ 12 /************************************************************************/ 13 14 /* #define DEBUG */ 15 16 #include <config.h> 17 #include <common.h> 18 #include <command.h> 19 #include <stdarg.h> 20 #include <search.h> 21 #include <env_callback.h> 22 #include <linux/types.h> 23 #include <stdio_dev.h> 24 #if defined(CONFIG_POST) 25 #include <post.h> 26 #endif 27 #include <lcd.h> 28 #include <watchdog.h> 29 #include <asm/unaligned.h> 30 #include <splash.h> 31 #include <asm/io.h> 32 #include <asm/unaligned.h> 33 34 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 35 defined(CONFIG_CPU_MONAHANS) 36 #define CONFIG_CPU_PXA 37 #include <asm/byteorder.h> 38 #endif 39 40 #if defined(CONFIG_MPC823) 41 #include <lcdvideo.h> 42 #endif 43 44 #if defined(CONFIG_ATMEL_LCD) 45 #include <atmel_lcdc.h> 46 #endif 47 48 #if defined(CONFIG_LCD_DT_SIMPLEFB) 49 #include <libfdt.h> 50 #endif 51 52 /************************************************************************/ 53 /* ** FONT DATA */ 54 /************************************************************************/ 55 #include <video_font.h> /* Get font data, width and height */ 56 57 /************************************************************************/ 58 /* ** LOGO DATA */ 59 /************************************************************************/ 60 #ifdef CONFIG_LCD_LOGO 61 # include <bmp_logo.h> /* Get logo data, width and height */ 62 # include <bmp_logo_data.h> 63 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 64 # error Default Color Map overlaps with Logo Color Map 65 # endif 66 #endif 67 68 #ifdef CONFIG_SANDBOX 69 #include <asm/sdl.h> 70 #endif 71 72 #ifndef CONFIG_LCD_ALIGNMENT 73 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 74 #endif 75 76 /* By default we scroll by a single line */ 77 #ifndef CONFIG_CONSOLE_SCROLL_LINES 78 #define CONFIG_CONSOLE_SCROLL_LINES 1 79 #endif 80 81 /************************************************************************/ 82 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 83 /************************************************************************/ 84 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 85 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 86 / VIDEO_FONT_HEIGHT) 87 #else 88 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 89 #endif 90 91 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 92 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 93 #define CONSOLE_ROW_FIRST lcd_console_address 94 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 95 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 96 - CONSOLE_ROW_SIZE) 97 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 98 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 99 100 #if LCD_BPP == LCD_MONOCHROME 101 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 102 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 103 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 104 # define COLOR_MASK(c) (c) 105 #else 106 # error Unsupported LCD BPP. 107 #endif 108 109 DECLARE_GLOBAL_DATA_PTR; 110 111 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 112 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 113 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 114 115 static int lcd_init(void *lcdbase); 116 117 static void *lcd_logo(void); 118 119 static int lcd_getbgcolor(void); 120 static void lcd_setfgcolor(int color); 121 static void lcd_setbgcolor(int color); 122 123 static int lcd_color_fg; 124 static int lcd_color_bg; 125 int lcd_line_length; 126 127 char lcd_is_enabled = 0; 128 129 static short console_col; 130 static short console_row; 131 132 static void *lcd_console_address; 133 static void *lcd_base; /* Start of framebuffer memory */ 134 135 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 136 137 /************************************************************************/ 138 139 /* Flush LCD activity to the caches */ 140 void lcd_sync(void) 141 { 142 /* 143 * flush_dcache_range() is declared in common.h but it seems that some 144 * architectures do not actually implement it. Is there a way to find 145 * out whether it exists? For now, ARM is safe. 146 */ 147 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 148 int line_length; 149 150 if (lcd_flush_dcache) 151 flush_dcache_range((u32)lcd_base, 152 (u32)(lcd_base + lcd_get_size(&line_length))); 153 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 154 static ulong last_sync; 155 156 if (get_timer(last_sync) > 10) { 157 sandbox_sdl_sync(lcd_base); 158 last_sync = get_timer(0); 159 } 160 #endif 161 } 162 163 void lcd_set_flush_dcache(int flush) 164 { 165 lcd_flush_dcache = (flush != 0); 166 } 167 168 /*----------------------------------------------------------------------*/ 169 170 static void console_scrollup(void) 171 { 172 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 173 174 /* Copy up rows ignoring those that will be overwritten */ 175 memcpy(CONSOLE_ROW_FIRST, 176 lcd_console_address + CONSOLE_ROW_SIZE * rows, 177 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 178 179 /* Clear the last rows */ 180 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 181 COLOR_MASK(lcd_color_bg), 182 CONSOLE_ROW_SIZE * rows); 183 184 lcd_sync(); 185 console_row -= rows; 186 } 187 188 /*----------------------------------------------------------------------*/ 189 190 static inline void console_back(void) 191 { 192 if (--console_col < 0) { 193 console_col = CONSOLE_COLS-1 ; 194 if (--console_row < 0) 195 console_row = 0; 196 } 197 198 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 199 console_row * VIDEO_FONT_HEIGHT, ' '); 200 } 201 202 /*----------------------------------------------------------------------*/ 203 204 static inline void console_newline(void) 205 { 206 console_col = 0; 207 208 /* Check if we need to scroll the terminal */ 209 if (++console_row >= CONSOLE_ROWS) 210 console_scrollup(); 211 else 212 lcd_sync(); 213 } 214 215 /*----------------------------------------------------------------------*/ 216 217 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 218 { 219 lcd_putc(c); 220 } 221 222 void lcd_putc(const char c) 223 { 224 if (!lcd_is_enabled) { 225 serial_putc(c); 226 227 return; 228 } 229 230 switch (c) { 231 case '\r': 232 console_col = 0; 233 234 return; 235 case '\n': 236 console_newline(); 237 238 return; 239 case '\t': /* Tab (8 chars alignment) */ 240 console_col += 8; 241 console_col &= ~7; 242 243 if (console_col >= CONSOLE_COLS) 244 console_newline(); 245 246 return; 247 case '\b': 248 console_back(); 249 250 return; 251 default: 252 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 253 console_row * VIDEO_FONT_HEIGHT, c); 254 if (++console_col >= CONSOLE_COLS) 255 console_newline(); 256 } 257 } 258 259 /*----------------------------------------------------------------------*/ 260 261 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 262 { 263 lcd_puts(s); 264 } 265 266 void lcd_puts(const char *s) 267 { 268 if (!lcd_is_enabled) { 269 serial_puts(s); 270 271 return; 272 } 273 274 while (*s) 275 lcd_putc(*s++); 276 277 lcd_sync(); 278 } 279 280 /*----------------------------------------------------------------------*/ 281 282 void lcd_printf(const char *fmt, ...) 283 { 284 va_list args; 285 char buf[CONFIG_SYS_PBSIZE]; 286 287 va_start(args, fmt); 288 vsprintf(buf, fmt, args); 289 va_end(args); 290 291 lcd_puts(buf); 292 } 293 294 /************************************************************************/ 295 /* ** Low-Level Graphics Routines */ 296 /************************************************************************/ 297 298 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 299 { 300 uchar *dest; 301 ushort row; 302 303 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 304 y += BMP_LOGO_HEIGHT; 305 #endif 306 307 #if LCD_BPP == LCD_MONOCHROME 308 ushort off = x * (1 << LCD_BPP) % 8; 309 #endif 310 311 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 312 313 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 314 uchar *s = str; 315 int i; 316 #if LCD_BPP == LCD_COLOR16 317 ushort *d = (ushort *)dest; 318 #else 319 uchar *d = dest; 320 #endif 321 322 #if LCD_BPP == LCD_MONOCHROME 323 uchar rest = *d & -(1 << (8 - off)); 324 uchar sym; 325 #endif 326 for (i = 0; i < count; ++i) { 327 uchar c, bits; 328 329 c = *s++; 330 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 331 332 #if LCD_BPP == LCD_MONOCHROME 333 sym = (COLOR_MASK(lcd_color_fg) & bits) | 334 (COLOR_MASK(lcd_color_bg) & ~bits); 335 336 *d++ = rest | (sym >> off); 337 rest = sym << (8-off); 338 #elif LCD_BPP == LCD_COLOR8 339 for (c = 0; c < 8; ++c) { 340 *d++ = (bits & 0x80) ? 341 lcd_color_fg : lcd_color_bg; 342 bits <<= 1; 343 } 344 #elif LCD_BPP == LCD_COLOR16 345 for (c = 0; c < 8; ++c) { 346 *d++ = (bits & 0x80) ? 347 lcd_color_fg : lcd_color_bg; 348 bits <<= 1; 349 } 350 #endif 351 } 352 #if LCD_BPP == LCD_MONOCHROME 353 *d = rest | (*d & ((1 << (8 - off)) - 1)); 354 #endif 355 } 356 } 357 358 /*----------------------------------------------------------------------*/ 359 360 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 361 { 362 lcd_drawchars(x, y, s, strlen((char *)s)); 363 } 364 365 /*----------------------------------------------------------------------*/ 366 367 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 368 { 369 lcd_drawchars(x, y, &c, 1); 370 } 371 372 /************************************************************************/ 373 /** Small utility to check that you got the colours right */ 374 /************************************************************************/ 375 #ifdef LCD_TEST_PATTERN 376 377 #define N_BLK_VERT 2 378 #define N_BLK_HOR 3 379 380 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 381 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 382 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 383 }; 384 385 static void test_pattern(void) 386 { 387 ushort v_max = panel_info.vl_row; 388 ushort h_max = panel_info.vl_col; 389 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 390 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 391 ushort v, h; 392 uchar *pix = (uchar *)lcd_base; 393 394 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 395 h_max, v_max, h_step, v_step); 396 397 /* WARNING: Code silently assumes 8bit/pixel */ 398 for (v = 0; v < v_max; ++v) { 399 uchar iy = v / v_step; 400 for (h = 0; h < h_max; ++h) { 401 uchar ix = N_BLK_HOR * iy + h / h_step; 402 *pix++ = test_colors[ix]; 403 } 404 } 405 } 406 #endif /* LCD_TEST_PATTERN */ 407 408 409 /************************************************************************/ 410 /* ** GENERIC Initialization Routines */ 411 /************************************************************************/ 412 /* 413 * With most lcd drivers the line length is set up 414 * by calculating it from panel_info parameters. Some 415 * drivers need to calculate the line length differently, 416 * so make the function weak to allow overriding it. 417 */ 418 __weak int lcd_get_size(int *line_length) 419 { 420 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 421 return *line_length * panel_info.vl_row; 422 } 423 424 int drv_lcd_init(void) 425 { 426 struct stdio_dev lcddev; 427 int rc; 428 429 lcd_base = map_sysmem(gd->fb_base, 0); 430 431 lcd_init(lcd_base); /* LCD initialization */ 432 433 /* Device initialization */ 434 memset(&lcddev, 0, sizeof(lcddev)); 435 436 strcpy(lcddev.name, "lcd"); 437 lcddev.ext = 0; /* No extensions */ 438 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 439 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 440 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 441 442 rc = stdio_register(&lcddev); 443 444 return (rc == 0) ? 1 : rc; 445 } 446 447 /*----------------------------------------------------------------------*/ 448 void lcd_clear(void) 449 { 450 #if LCD_BPP == LCD_MONOCHROME 451 /* Setting the palette */ 452 lcd_initcolregs(); 453 454 #elif LCD_BPP == LCD_COLOR8 455 /* Setting the palette */ 456 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 457 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 458 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 459 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 460 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 461 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 462 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 463 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 464 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 465 #endif 466 467 #ifndef CONFIG_SYS_WHITE_ON_BLACK 468 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 469 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 470 #else 471 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 472 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 473 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 474 475 #ifdef LCD_TEST_PATTERN 476 test_pattern(); 477 #else 478 /* set framebuffer to background color */ 479 memset((char *)lcd_base, 480 COLOR_MASK(lcd_getbgcolor()), 481 lcd_line_length * panel_info.vl_row); 482 #endif 483 /* Paint the logo and retrieve LCD base address */ 484 debug("[LCD] Drawing the logo...\n"); 485 lcd_console_address = lcd_logo(); 486 487 console_col = 0; 488 console_row = 0; 489 lcd_sync(); 490 } 491 492 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 493 char *const argv[]) 494 { 495 lcd_clear(); 496 return 0; 497 } 498 499 U_BOOT_CMD( 500 cls, 1, 1, do_lcd_clear, 501 "clear screen", 502 "" 503 ); 504 505 /*----------------------------------------------------------------------*/ 506 507 static int lcd_init(void *lcdbase) 508 { 509 /* Initialize the lcd controller */ 510 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 511 512 lcd_ctrl_init(lcdbase); 513 514 /* 515 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores 516 * the 'lcdbase' argument and uses custom lcd base address 517 * by setting up gd->fb_base. Check for this condition and fixup 518 * 'lcd_base' address. 519 */ 520 if (map_to_sysmem(lcdbase) != gd->fb_base) 521 lcd_base = map_sysmem(gd->fb_base, 0); 522 523 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 524 525 lcd_get_size(&lcd_line_length); 526 lcd_is_enabled = 1; 527 lcd_clear(); 528 lcd_enable(); 529 530 /* Initialize the console */ 531 console_col = 0; 532 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 533 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 534 #else 535 console_row = 1; /* leave 1 blank line below logo */ 536 #endif 537 538 return 0; 539 } 540 541 542 /************************************************************************/ 543 /* ** ROM capable initialization part - needed to reserve FB memory */ 544 /************************************************************************/ 545 /* 546 * This is called early in the system initialization to grab memory 547 * for the LCD controller. 548 * Returns new address for monitor, after reserving LCD buffer memory 549 * 550 * Note that this is running from ROM, so no write access to global data. 551 */ 552 ulong lcd_setmem(ulong addr) 553 { 554 ulong size; 555 int line_length; 556 557 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 558 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 559 560 size = lcd_get_size(&line_length); 561 562 /* Round up to nearest full page, or MMU section if defined */ 563 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 564 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 565 566 /* Allocate pages for the frame buffer. */ 567 addr -= size; 568 569 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 570 size >> 10, addr); 571 572 return addr; 573 } 574 575 /*----------------------------------------------------------------------*/ 576 577 static void lcd_setfgcolor(int color) 578 { 579 lcd_color_fg = color; 580 } 581 582 /*----------------------------------------------------------------------*/ 583 584 static void lcd_setbgcolor(int color) 585 { 586 lcd_color_bg = color; 587 } 588 589 /*----------------------------------------------------------------------*/ 590 591 int lcd_getfgcolor(void) 592 { 593 return lcd_color_fg; 594 } 595 596 /*----------------------------------------------------------------------*/ 597 598 static int lcd_getbgcolor(void) 599 { 600 return lcd_color_bg; 601 } 602 603 /************************************************************************/ 604 /* ** Chipset depending Bitmap / Logo stuff... */ 605 /************************************************************************/ 606 static inline ushort *configuration_get_cmap(void) 607 { 608 #if defined CONFIG_CPU_PXA 609 struct pxafb_info *fbi = &panel_info.pxa; 610 return (ushort *)fbi->palette; 611 #elif defined(CONFIG_MPC823) 612 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 613 cpm8xx_t *cp = &(immr->im_cpm); 614 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 615 #elif defined(CONFIG_ATMEL_LCD) 616 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 617 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 618 return panel_info.cmap; 619 #elif defined(CONFIG_LCD_LOGO) 620 return bmp_logo_palette; 621 #else 622 return NULL; 623 #endif 624 } 625 626 #ifdef CONFIG_LCD_LOGO 627 void bitmap_plot(int x, int y) 628 { 629 #ifdef CONFIG_ATMEL_LCD 630 uint *cmap = (uint *)bmp_logo_palette; 631 #else 632 ushort *cmap = (ushort *)bmp_logo_palette; 633 #endif 634 ushort i, j; 635 uchar *bmap; 636 uchar *fb; 637 ushort *fb16; 638 #if defined(CONFIG_MPC823) 639 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 640 cpm8xx_t *cp = &(immr->im_cpm); 641 #endif 642 unsigned bpix = NBITS(panel_info.vl_bpix); 643 644 debug("Logo: width %d height %d colors %d cmap %d\n", 645 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 646 ARRAY_SIZE(bmp_logo_palette)); 647 648 bmap = &bmp_logo_bitmap[0]; 649 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 650 651 if (bpix < 12) { 652 /* Leave room for default color map 653 * default case: generic system with no cmap (most likely 16bpp) 654 * cmap was set to the source palette, so no change is done. 655 * This avoids even more ifdefs in the next stanza 656 */ 657 #if defined(CONFIG_MPC823) 658 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 659 #elif defined(CONFIG_ATMEL_LCD) 660 cmap = (uint *)configuration_get_cmap(); 661 #else 662 cmap = configuration_get_cmap(); 663 #endif 664 665 WATCHDOG_RESET(); 666 667 /* Set color map */ 668 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 669 ushort colreg = bmp_logo_palette[i]; 670 #ifdef CONFIG_ATMEL_LCD 671 uint lut_entry; 672 #ifdef CONFIG_ATMEL_LCD_BGR555 673 lut_entry = ((colreg & 0x000F) << 11) | 674 ((colreg & 0x00F0) << 2) | 675 ((colreg & 0x0F00) >> 7); 676 #else /* CONFIG_ATMEL_LCD_RGB565 */ 677 lut_entry = ((colreg & 0x000F) << 1) | 678 ((colreg & 0x00F0) << 3) | 679 ((colreg & 0x0F00) << 4); 680 #endif 681 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 682 cmap++; 683 #else /* !CONFIG_ATMEL_LCD */ 684 #ifdef CONFIG_SYS_INVERT_COLORS 685 *cmap++ = 0xffff - colreg; 686 #else 687 *cmap++ = colreg; 688 #endif 689 #endif /* CONFIG_ATMEL_LCD */ 690 } 691 692 WATCHDOG_RESET(); 693 694 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 695 memcpy(fb, bmap, BMP_LOGO_WIDTH); 696 bmap += BMP_LOGO_WIDTH; 697 fb += panel_info.vl_col; 698 } 699 } 700 else { /* true color mode */ 701 u16 col16; 702 fb16 = (ushort *)fb; 703 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 704 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 705 col16 = bmp_logo_palette[(bmap[j]-16)]; 706 fb16[j] = 707 ((col16 & 0x000F) << 1) | 708 ((col16 & 0x00F0) << 3) | 709 ((col16 & 0x0F00) << 4); 710 } 711 bmap += BMP_LOGO_WIDTH; 712 fb16 += panel_info.vl_col; 713 } 714 } 715 716 WATCHDOG_RESET(); 717 lcd_sync(); 718 } 719 #else 720 static inline void bitmap_plot(int x, int y) {} 721 #endif /* CONFIG_LCD_LOGO */ 722 723 /*----------------------------------------------------------------------*/ 724 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 725 /* 726 * Display the BMP file located at address bmp_image. 727 * Only uncompressed. 728 */ 729 730 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 731 #define BMP_ALIGN_CENTER 0x7FFF 732 733 static void splash_align_axis(int *axis, unsigned long panel_size, 734 unsigned long picture_size) 735 { 736 unsigned long panel_picture_delta = panel_size - picture_size; 737 unsigned long axis_alignment; 738 739 if (*axis == BMP_ALIGN_CENTER) 740 axis_alignment = panel_picture_delta / 2; 741 else if (*axis < 0) 742 axis_alignment = panel_picture_delta + *axis + 1; 743 else 744 return; 745 746 *axis = max(0, axis_alignment); 747 } 748 #endif 749 750 751 #ifdef CONFIG_LCD_BMP_RLE8 752 753 #define BMP_RLE8_ESCAPE 0 754 #define BMP_RLE8_EOL 0 755 #define BMP_RLE8_EOBMP 1 756 #define BMP_RLE8_DELTA 2 757 758 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 759 int cnt) 760 { 761 while (cnt > 0) { 762 *(*fbp)++ = cmap[*bmap++]; 763 cnt--; 764 } 765 } 766 767 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 768 { 769 ushort *fb = *fbp; 770 int cnt_8copy = cnt >> 3; 771 772 cnt -= cnt_8copy << 3; 773 while (cnt_8copy > 0) { 774 *fb++ = c; 775 *fb++ = c; 776 *fb++ = c; 777 *fb++ = c; 778 *fb++ = c; 779 *fb++ = c; 780 *fb++ = c; 781 *fb++ = c; 782 cnt_8copy--; 783 } 784 while (cnt > 0) { 785 *fb++ = c; 786 cnt--; 787 } 788 *fbp = fb; 789 } 790 791 /* 792 * Do not call this function directly, must be called from lcd_display_bitmap. 793 */ 794 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 795 int x_off, int y_off) 796 { 797 uchar *bmap; 798 ulong width, height; 799 ulong cnt, runlen; 800 int x, y; 801 int decode = 1; 802 803 width = get_unaligned_le32(&bmp->header.width); 804 height = get_unaligned_le32(&bmp->header.height); 805 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 806 807 x = 0; 808 y = height - 1; 809 810 while (decode) { 811 if (bmap[0] == BMP_RLE8_ESCAPE) { 812 switch (bmap[1]) { 813 case BMP_RLE8_EOL: 814 /* end of line */ 815 bmap += 2; 816 x = 0; 817 y--; 818 /* 16bpix, 2-byte per pixel, width should *2 */ 819 fb -= (width * 2 + lcd_line_length); 820 break; 821 case BMP_RLE8_EOBMP: 822 /* end of bitmap */ 823 decode = 0; 824 break; 825 case BMP_RLE8_DELTA: 826 /* delta run */ 827 x += bmap[2]; 828 y -= bmap[3]; 829 /* 16bpix, 2-byte per pixel, x should *2 */ 830 fb = (uchar *) (lcd_base + (y + y_off - 1) 831 * lcd_line_length + (x + x_off) * 2); 832 bmap += 4; 833 break; 834 default: 835 /* unencoded run */ 836 runlen = bmap[1]; 837 bmap += 2; 838 if (y < height) { 839 if (x < width) { 840 if (x + runlen > width) 841 cnt = width - x; 842 else 843 cnt = runlen; 844 draw_unencoded_bitmap( 845 (ushort **)&fb, 846 bmap, cmap, cnt); 847 } 848 x += runlen; 849 } 850 bmap += runlen; 851 if (runlen & 1) 852 bmap++; 853 } 854 } else { 855 /* encoded run */ 856 if (y < height) { 857 runlen = bmap[0]; 858 if (x < width) { 859 /* aggregate the same code */ 860 while (bmap[0] == 0xff && 861 bmap[2] != BMP_RLE8_ESCAPE && 862 bmap[1] == bmap[3]) { 863 runlen += bmap[2]; 864 bmap += 2; 865 } 866 if (x + runlen > width) 867 cnt = width - x; 868 else 869 cnt = runlen; 870 draw_encoded_bitmap((ushort **)&fb, 871 cmap[bmap[1]], cnt); 872 } 873 x += runlen; 874 } 875 bmap += 2; 876 } 877 } 878 } 879 #endif 880 881 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 882 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 883 #else 884 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 885 #endif 886 887 #if defined(CONFIG_BMP_16BPP) 888 #if defined(CONFIG_ATMEL_LCD_BGR555) 889 static inline void fb_put_word(uchar **fb, uchar **from) 890 { 891 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 892 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 893 *from += 2; 894 } 895 #else 896 static inline void fb_put_word(uchar **fb, uchar **from) 897 { 898 *(*fb)++ = *(*from)++; 899 *(*fb)++ = *(*from)++; 900 } 901 #endif 902 #endif /* CONFIG_BMP_16BPP */ 903 904 int lcd_display_bitmap(ulong bmp_image, int x, int y) 905 { 906 #if !defined(CONFIG_MCC200) 907 ushort *cmap = NULL; 908 #endif 909 ushort *cmap_base = NULL; 910 ushort i, j; 911 uchar *fb; 912 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 913 uchar *bmap; 914 ushort padded_width; 915 unsigned long width, height, byte_width; 916 unsigned long pwidth = panel_info.vl_col; 917 unsigned colors, bpix, bmp_bpix; 918 919 if (!bmp || !(bmp->header.signature[0] == 'B' && 920 bmp->header.signature[1] == 'M')) { 921 printf("Error: no valid bmp image at %lx\n", bmp_image); 922 923 return 1; 924 } 925 926 width = get_unaligned_le32(&bmp->header.width); 927 height = get_unaligned_le32(&bmp->header.height); 928 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 929 930 colors = 1 << bmp_bpix; 931 932 bpix = NBITS(panel_info.vl_bpix); 933 934 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 935 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 936 bpix, bmp_bpix); 937 938 return 1; 939 } 940 941 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 942 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 943 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 944 bpix, get_unaligned_le16(&bmp->header.bit_count)); 945 return 1; 946 } 947 948 debug("Display-bmp: %d x %d with %d colors\n", 949 (int)width, (int)height, (int)colors); 950 951 #if !defined(CONFIG_MCC200) 952 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 953 if (bmp_bpix == 8) { 954 cmap = configuration_get_cmap(); 955 cmap_base = cmap; 956 957 /* Set color map */ 958 for (i = 0; i < colors; ++i) { 959 bmp_color_table_entry_t cte = bmp->color_table[i]; 960 #if !defined(CONFIG_ATMEL_LCD) 961 ushort colreg = 962 ( ((cte.red) << 8) & 0xf800) | 963 ( ((cte.green) << 3) & 0x07e0) | 964 ( ((cte.blue) >> 3) & 0x001f) ; 965 #ifdef CONFIG_SYS_INVERT_COLORS 966 *cmap = 0xffff - colreg; 967 #else 968 *cmap = colreg; 969 #endif 970 #if defined(CONFIG_MPC823) 971 cmap--; 972 #else 973 cmap++; 974 #endif 975 #else /* CONFIG_ATMEL_LCD */ 976 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 977 #endif 978 } 979 } 980 #endif 981 /* 982 * BMP format for Monochrome assumes that the state of a 983 * pixel is described on a per Bit basis, not per Byte. 984 * So, in case of Monochrome BMP we should align widths 985 * on a byte boundary and convert them from Bit to Byte 986 * units. 987 * Probably, PXA250 and MPC823 process 1bpp BMP images in 988 * their own ways, so make the converting to be MCC200 989 * specific. 990 */ 991 #if defined(CONFIG_MCC200) 992 if (bpix == 1) { 993 width = ((width + 7) & ~7) >> 3; 994 x = ((x + 7) & ~7) >> 3; 995 pwidth= ((pwidth + 7) & ~7) >> 3; 996 } 997 #endif 998 999 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 1000 1001 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 1002 splash_align_axis(&x, pwidth, width); 1003 splash_align_axis(&y, panel_info.vl_row, height); 1004 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 1005 1006 if ((x + width) > pwidth) 1007 width = pwidth - x; 1008 if ((y + height) > panel_info.vl_row) 1009 height = panel_info.vl_row - y; 1010 1011 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 1012 fb = (uchar *)(lcd_base + 1013 (y + height - 1) * lcd_line_length + x * bpix / 8); 1014 1015 switch (bmp_bpix) { 1016 case 1: /* pass through */ 1017 case 8: 1018 #ifdef CONFIG_LCD_BMP_RLE8 1019 u32 compression = get_unaligned_le32(&bmp->header.compression); 1020 if (compression == BMP_BI_RLE8) { 1021 if (bpix != 16) { 1022 /* TODO implement render code for bpix != 16 */ 1023 printf("Error: only support 16 bpix"); 1024 return 1; 1025 } 1026 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1027 break; 1028 } 1029 #endif 1030 1031 if (bpix != 16) 1032 byte_width = width; 1033 else 1034 byte_width = width * 2; 1035 1036 for (i = 0; i < height; ++i) { 1037 WATCHDOG_RESET(); 1038 for (j = 0; j < width; j++) { 1039 if (bpix != 16) { 1040 FB_PUT_BYTE(fb, bmap); 1041 } else { 1042 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1043 fb += sizeof(uint16_t) / sizeof(*fb); 1044 } 1045 } 1046 bmap += (padded_width - width); 1047 fb -= byte_width + lcd_line_length; 1048 } 1049 break; 1050 1051 #if defined(CONFIG_BMP_16BPP) 1052 case 16: 1053 for (i = 0; i < height; ++i) { 1054 WATCHDOG_RESET(); 1055 for (j = 0; j < width; j++) 1056 fb_put_word(&fb, &bmap); 1057 1058 bmap += (padded_width - width) * 2; 1059 fb -= width * 2 + lcd_line_length; 1060 } 1061 break; 1062 #endif /* CONFIG_BMP_16BPP */ 1063 1064 #if defined(CONFIG_BMP_32BPP) 1065 case 32: 1066 for (i = 0; i < height; ++i) { 1067 for (j = 0; j < width; j++) { 1068 *(fb++) = *(bmap++); 1069 *(fb++) = *(bmap++); 1070 *(fb++) = *(bmap++); 1071 *(fb++) = *(bmap++); 1072 } 1073 fb -= lcd_line_length + width * (bpix / 8); 1074 } 1075 break; 1076 #endif /* CONFIG_BMP_32BPP */ 1077 default: 1078 break; 1079 }; 1080 1081 lcd_sync(); 1082 return 0; 1083 } 1084 #endif 1085 1086 static void *lcd_logo(void) 1087 { 1088 #ifdef CONFIG_SPLASH_SCREEN 1089 char *s; 1090 ulong addr; 1091 static int do_splash = 1; 1092 1093 if (do_splash && (s = getenv("splashimage")) != NULL) { 1094 int x = 0, y = 0; 1095 do_splash = 0; 1096 1097 if (splash_screen_prepare()) 1098 return (void *)lcd_base; 1099 1100 addr = simple_strtoul (s, NULL, 16); 1101 1102 splash_get_pos(&x, &y); 1103 1104 if (bmp_display(addr, x, y) == 0) 1105 return (void *)lcd_base; 1106 } 1107 #endif /* CONFIG_SPLASH_SCREEN */ 1108 1109 bitmap_plot(0, 0); 1110 1111 #ifdef CONFIG_LCD_INFO 1112 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1113 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1114 lcd_show_board_info(); 1115 #endif /* CONFIG_LCD_INFO */ 1116 1117 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1118 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1119 #else 1120 return (void *)lcd_base; 1121 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1122 } 1123 1124 #ifdef CONFIG_SPLASHIMAGE_GUARD 1125 static int on_splashimage(const char *name, const char *value, enum env_op op, 1126 int flags) 1127 { 1128 ulong addr; 1129 int aligned; 1130 1131 if (op == env_op_delete) 1132 return 0; 1133 1134 addr = simple_strtoul(value, NULL, 16); 1135 /* See README.displaying-bmps */ 1136 aligned = (addr % 4 == 2); 1137 if (!aligned) { 1138 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1139 return -1; 1140 } 1141 1142 return 0; 1143 } 1144 1145 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1146 #endif 1147 1148 void lcd_position_cursor(unsigned col, unsigned row) 1149 { 1150 console_col = min(col, CONSOLE_COLS - 1); 1151 console_row = min(row, CONSOLE_ROWS - 1); 1152 } 1153 1154 int lcd_get_pixel_width(void) 1155 { 1156 return panel_info.vl_col; 1157 } 1158 1159 int lcd_get_pixel_height(void) 1160 { 1161 return panel_info.vl_row; 1162 } 1163 1164 int lcd_get_screen_rows(void) 1165 { 1166 return CONSOLE_ROWS; 1167 } 1168 1169 int lcd_get_screen_columns(void) 1170 { 1171 return CONSOLE_COLS; 1172 } 1173 1174 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1175 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1176 { 1177 u32 stride; 1178 fdt32_t cells[2]; 1179 int ret; 1180 static const char format[] = 1181 #if LCD_BPP == LCD_COLOR16 1182 "r5g6b5"; 1183 #else 1184 ""; 1185 #endif 1186 1187 if (!format[0]) 1188 return -1; 1189 1190 stride = panel_info.vl_col * 2; 1191 1192 cells[0] = cpu_to_fdt32(gd->fb_base); 1193 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); 1194 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); 1195 if (ret < 0) 1196 return -1; 1197 1198 cells[0] = cpu_to_fdt32(panel_info.vl_col); 1199 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); 1200 if (ret < 0) 1201 return -1; 1202 1203 cells[0] = cpu_to_fdt32(panel_info.vl_row); 1204 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); 1205 if (ret < 0) 1206 return -1; 1207 1208 cells[0] = cpu_to_fdt32(stride); 1209 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); 1210 if (ret < 0) 1211 return -1; 1212 1213 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); 1214 if (ret < 0) 1215 return -1; 1216 1217 ret = fdt_delprop(blob, off, "status"); 1218 if (ret < 0) 1219 return -1; 1220 1221 return 0; 1222 } 1223 1224 int lcd_dt_simplefb_add_node(void *blob) 1225 { 1226 static const char compat[] = "simple-framebuffer"; 1227 static const char disabled[] = "disabled"; 1228 int off, ret; 1229 1230 off = fdt_add_subnode(blob, 0, "framebuffer"); 1231 if (off < 0) 1232 return -1; 1233 1234 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1235 if (ret < 0) 1236 return -1; 1237 1238 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1239 if (ret < 0) 1240 return -1; 1241 1242 return lcd_dt_simplefb_configure_node(blob, off); 1243 } 1244 1245 int lcd_dt_simplefb_enable_existing_node(void *blob) 1246 { 1247 int off; 1248 1249 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1250 if (off < 0) 1251 return -1; 1252 1253 return lcd_dt_simplefb_configure_node(blob, off); 1254 } 1255 #endif 1256