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 30 #include <splash.h> 31 32 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 33 defined(CONFIG_CPU_MONAHANS) 34 #define CONFIG_CPU_PXA 35 #include <asm/byteorder.h> 36 #endif 37 38 #if defined(CONFIG_MPC823) 39 #include <lcdvideo.h> 40 #endif 41 42 #if defined(CONFIG_ATMEL_LCD) 43 #include <atmel_lcdc.h> 44 #endif 45 46 #if defined(CONFIG_LCD_DT_SIMPLEFB) 47 #include <libfdt.h> 48 #endif 49 50 /************************************************************************/ 51 /* ** FONT DATA */ 52 /************************************************************************/ 53 #include <video_font.h> /* Get font data, width and height */ 54 #include <video_font_data.h> 55 56 /************************************************************************/ 57 /* ** LOGO DATA */ 58 /************************************************************************/ 59 #ifdef CONFIG_LCD_LOGO 60 # include <bmp_logo.h> /* Get logo data, width and height */ 61 # include <bmp_logo_data.h> 62 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16) 63 # error Default Color Map overlaps with Logo Color Map 64 # endif 65 #endif 66 67 #ifndef CONFIG_LCD_ALIGNMENT 68 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE 69 #endif 70 71 /* By default we scroll by a single line */ 72 #ifndef CONFIG_CONSOLE_SCROLL_LINES 73 #define CONFIG_CONSOLE_SCROLL_LINES 1 74 #endif 75 76 /************************************************************************/ 77 /* ** CONSOLE DEFINITIONS & FUNCTIONS */ 78 /************************************************************************/ 79 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 80 # define CONSOLE_ROWS ((panel_info.vl_row-BMP_LOGO_HEIGHT) \ 81 / VIDEO_FONT_HEIGHT) 82 #else 83 # define CONSOLE_ROWS (panel_info.vl_row / VIDEO_FONT_HEIGHT) 84 #endif 85 86 #define CONSOLE_COLS (panel_info.vl_col / VIDEO_FONT_WIDTH) 87 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 88 #define CONSOLE_ROW_FIRST lcd_console_address 89 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 90 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 91 - CONSOLE_ROW_SIZE) 92 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * CONSOLE_ROWS) 93 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 94 95 #if LCD_BPP == LCD_MONOCHROME 96 # define COLOR_MASK(c) ((c) | (c) << 1 | (c) << 2 | (c) << 3 | \ 97 (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7) 98 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) 99 # define COLOR_MASK(c) (c) 100 #else 101 # error Unsupported LCD BPP. 102 #endif 103 104 DECLARE_GLOBAL_DATA_PTR; 105 106 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 107 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s); 108 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 109 110 static int lcd_init(void *lcdbase); 111 112 static void *lcd_logo(void); 113 114 static int lcd_getbgcolor(void); 115 static void lcd_setfgcolor(int color); 116 static void lcd_setbgcolor(int color); 117 118 static int lcd_color_fg; 119 static int lcd_color_bg; 120 int lcd_line_length; 121 122 char lcd_is_enabled = 0; 123 124 static short console_col; 125 static short console_row; 126 127 static void *lcd_console_address; 128 static void *lcd_base; /* Start of framebuffer memory */ 129 130 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 131 132 /************************************************************************/ 133 134 /* Flush LCD activity to the caches */ 135 void lcd_sync(void) 136 { 137 /* 138 * flush_dcache_range() is declared in common.h but it seems that some 139 * architectures do not actually implement it. Is there a way to find 140 * out whether it exists? For now, ARM is safe. 141 */ 142 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 143 int line_length; 144 145 if (lcd_flush_dcache) 146 flush_dcache_range((u32)lcd_base, 147 (u32)(lcd_base + lcd_get_size(&line_length))); 148 #endif 149 } 150 151 void lcd_set_flush_dcache(int flush) 152 { 153 lcd_flush_dcache = (flush != 0); 154 } 155 156 /*----------------------------------------------------------------------*/ 157 158 static void console_scrollup(void) 159 { 160 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 161 162 /* Copy up rows ignoring those that will be overwritten */ 163 memcpy(CONSOLE_ROW_FIRST, 164 lcd_console_address + CONSOLE_ROW_SIZE * rows, 165 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 166 167 /* Clear the last rows */ 168 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 169 COLOR_MASK(lcd_color_bg), 170 CONSOLE_ROW_SIZE * rows); 171 172 lcd_sync(); 173 console_row -= rows; 174 } 175 176 /*----------------------------------------------------------------------*/ 177 178 static inline void console_back(void) 179 { 180 if (--console_col < 0) { 181 console_col = CONSOLE_COLS-1 ; 182 if (--console_row < 0) 183 console_row = 0; 184 } 185 186 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 187 console_row * VIDEO_FONT_HEIGHT, ' '); 188 } 189 190 /*----------------------------------------------------------------------*/ 191 192 static inline void console_newline(void) 193 { 194 console_col = 0; 195 196 /* Check if we need to scroll the terminal */ 197 if (++console_row >= CONSOLE_ROWS) 198 console_scrollup(); 199 else 200 lcd_sync(); 201 } 202 203 /*----------------------------------------------------------------------*/ 204 205 void lcd_putc(const char c) 206 { 207 if (!lcd_is_enabled) { 208 serial_putc(c); 209 210 return; 211 } 212 213 switch (c) { 214 case '\r': 215 console_col = 0; 216 217 return; 218 case '\n': 219 console_newline(); 220 221 return; 222 case '\t': /* Tab (8 chars alignment) */ 223 console_col += 8; 224 console_col &= ~7; 225 226 if (console_col >= CONSOLE_COLS) 227 console_newline(); 228 229 return; 230 case '\b': 231 console_back(); 232 233 return; 234 default: 235 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 236 console_row * VIDEO_FONT_HEIGHT, c); 237 if (++console_col >= CONSOLE_COLS) 238 console_newline(); 239 } 240 } 241 242 /*----------------------------------------------------------------------*/ 243 244 void lcd_puts(const char *s) 245 { 246 if (!lcd_is_enabled) { 247 serial_puts(s); 248 249 return; 250 } 251 252 while (*s) 253 lcd_putc(*s++); 254 255 lcd_sync(); 256 } 257 258 /*----------------------------------------------------------------------*/ 259 260 void lcd_printf(const char *fmt, ...) 261 { 262 va_list args; 263 char buf[CONFIG_SYS_PBSIZE]; 264 265 va_start(args, fmt); 266 vsprintf(buf, fmt, args); 267 va_end(args); 268 269 lcd_puts(buf); 270 } 271 272 /************************************************************************/ 273 /* ** Low-Level Graphics Routines */ 274 /************************************************************************/ 275 276 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 277 { 278 uchar *dest; 279 ushort row; 280 281 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 282 y += BMP_LOGO_HEIGHT; 283 #endif 284 285 #if LCD_BPP == LCD_MONOCHROME 286 ushort off = x * (1 << LCD_BPP) % 8; 287 #endif 288 289 dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8); 290 291 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 292 uchar *s = str; 293 int i; 294 #if LCD_BPP == LCD_COLOR16 295 ushort *d = (ushort *)dest; 296 #else 297 uchar *d = dest; 298 #endif 299 300 #if LCD_BPP == LCD_MONOCHROME 301 uchar rest = *d & -(1 << (8 - off)); 302 uchar sym; 303 #endif 304 for (i = 0; i < count; ++i) { 305 uchar c, bits; 306 307 c = *s++; 308 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 309 310 #if LCD_BPP == LCD_MONOCHROME 311 sym = (COLOR_MASK(lcd_color_fg) & bits) | 312 (COLOR_MASK(lcd_color_bg) & ~bits); 313 314 *d++ = rest | (sym >> off); 315 rest = sym << (8-off); 316 #elif LCD_BPP == LCD_COLOR8 317 for (c = 0; c < 8; ++c) { 318 *d++ = (bits & 0x80) ? 319 lcd_color_fg : lcd_color_bg; 320 bits <<= 1; 321 } 322 #elif LCD_BPP == LCD_COLOR16 323 for (c = 0; c < 8; ++c) { 324 *d++ = (bits & 0x80) ? 325 lcd_color_fg : lcd_color_bg; 326 bits <<= 1; 327 } 328 #endif 329 } 330 #if LCD_BPP == LCD_MONOCHROME 331 *d = rest | (*d & ((1 << (8 - off)) - 1)); 332 #endif 333 } 334 } 335 336 /*----------------------------------------------------------------------*/ 337 338 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s) 339 { 340 lcd_drawchars(x, y, s, strlen((char *)s)); 341 } 342 343 /*----------------------------------------------------------------------*/ 344 345 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 346 { 347 lcd_drawchars(x, y, &c, 1); 348 } 349 350 /************************************************************************/ 351 /** Small utility to check that you got the colours right */ 352 /************************************************************************/ 353 #ifdef LCD_TEST_PATTERN 354 355 #define N_BLK_VERT 2 356 #define N_BLK_HOR 3 357 358 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 359 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 360 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 361 }; 362 363 static void test_pattern(void) 364 { 365 ushort v_max = panel_info.vl_row; 366 ushort h_max = panel_info.vl_col; 367 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 368 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 369 ushort v, h; 370 uchar *pix = (uchar *)lcd_base; 371 372 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 373 h_max, v_max, h_step, v_step); 374 375 /* WARNING: Code silently assumes 8bit/pixel */ 376 for (v = 0; v < v_max; ++v) { 377 uchar iy = v / v_step; 378 for (h = 0; h < h_max; ++h) { 379 uchar ix = N_BLK_HOR * iy + h / h_step; 380 *pix++ = test_colors[ix]; 381 } 382 } 383 } 384 #endif /* LCD_TEST_PATTERN */ 385 386 387 /************************************************************************/ 388 /* ** GENERIC Initialization Routines */ 389 /************************************************************************/ 390 391 int lcd_get_size(int *line_length) 392 { 393 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 394 return *line_length * panel_info.vl_row; 395 } 396 397 int drv_lcd_init(void) 398 { 399 struct stdio_dev lcddev; 400 int rc; 401 402 lcd_base = (void *) gd->fb_base; 403 404 lcd_init(lcd_base); /* LCD initialization */ 405 406 /* Device initialization */ 407 memset(&lcddev, 0, sizeof(lcddev)); 408 409 strcpy(lcddev.name, "lcd"); 410 lcddev.ext = 0; /* No extensions */ 411 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 412 lcddev.putc = lcd_putc; /* 'putc' function */ 413 lcddev.puts = lcd_puts; /* 'puts' function */ 414 415 rc = stdio_register(&lcddev); 416 417 return (rc == 0) ? 1 : rc; 418 } 419 420 /*----------------------------------------------------------------------*/ 421 void lcd_clear(void) 422 { 423 #if LCD_BPP == LCD_MONOCHROME 424 /* Setting the palette */ 425 lcd_initcolregs(); 426 427 #elif LCD_BPP == LCD_COLOR8 428 /* Setting the palette */ 429 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 430 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 431 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 432 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 433 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 434 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 435 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 436 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 437 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 438 #endif 439 440 #ifndef CONFIG_SYS_WHITE_ON_BLACK 441 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 442 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 443 #else 444 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 445 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 446 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 447 448 #ifdef LCD_TEST_PATTERN 449 test_pattern(); 450 #else 451 /* set framebuffer to background color */ 452 memset((char *)lcd_base, 453 COLOR_MASK(lcd_getbgcolor()), 454 lcd_line_length * panel_info.vl_row); 455 #endif 456 /* Paint the logo and retrieve LCD base address */ 457 debug("[LCD] Drawing the logo...\n"); 458 lcd_console_address = lcd_logo(); 459 460 console_col = 0; 461 console_row = 0; 462 lcd_sync(); 463 } 464 465 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 466 char *const argv[]) 467 { 468 lcd_clear(); 469 return 0; 470 } 471 472 U_BOOT_CMD( 473 cls, 1, 1, do_lcd_clear, 474 "clear screen", 475 "" 476 ); 477 478 /*----------------------------------------------------------------------*/ 479 480 static int lcd_init(void *lcdbase) 481 { 482 /* Initialize the lcd controller */ 483 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 484 485 lcd_ctrl_init(lcdbase); 486 487 /* 488 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores 489 * the 'lcdbase' argument and uses custom lcd base address 490 * by setting up gd->fb_base. Check for this condition and fixup 491 * 'lcd_base' address. 492 */ 493 if ((unsigned long)lcdbase != gd->fb_base) 494 lcd_base = (void *)gd->fb_base; 495 496 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 497 498 lcd_get_size(&lcd_line_length); 499 lcd_line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 500 lcd_is_enabled = 1; 501 lcd_clear(); 502 lcd_enable(); 503 504 /* Initialize the console */ 505 console_col = 0; 506 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 507 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 508 #else 509 console_row = 1; /* leave 1 blank line below logo */ 510 #endif 511 512 return 0; 513 } 514 515 516 /************************************************************************/ 517 /* ** ROM capable initialization part - needed to reserve FB memory */ 518 /************************************************************************/ 519 /* 520 * This is called early in the system initialization to grab memory 521 * for the LCD controller. 522 * Returns new address for monitor, after reserving LCD buffer memory 523 * 524 * Note that this is running from ROM, so no write access to global data. 525 */ 526 ulong lcd_setmem(ulong addr) 527 { 528 ulong size; 529 int line_length; 530 531 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 532 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 533 534 size = lcd_get_size(&line_length); 535 536 /* Round up to nearest full page, or MMU section if defined */ 537 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 538 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 539 540 /* Allocate pages for the frame buffer. */ 541 addr -= size; 542 543 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 544 size >> 10, addr); 545 546 return addr; 547 } 548 549 /*----------------------------------------------------------------------*/ 550 551 static void lcd_setfgcolor(int color) 552 { 553 lcd_color_fg = color; 554 } 555 556 /*----------------------------------------------------------------------*/ 557 558 static void lcd_setbgcolor(int color) 559 { 560 lcd_color_bg = color; 561 } 562 563 /*----------------------------------------------------------------------*/ 564 565 int lcd_getfgcolor(void) 566 { 567 return lcd_color_fg; 568 } 569 570 /*----------------------------------------------------------------------*/ 571 572 static int lcd_getbgcolor(void) 573 { 574 return lcd_color_bg; 575 } 576 577 /************************************************************************/ 578 /* ** Chipset depending Bitmap / Logo stuff... */ 579 /************************************************************************/ 580 static inline ushort *configuration_get_cmap(void) 581 { 582 #if defined CONFIG_CPU_PXA 583 struct pxafb_info *fbi = &panel_info.pxa; 584 return (ushort *)fbi->palette; 585 #elif defined(CONFIG_MPC823) 586 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 587 cpm8xx_t *cp = &(immr->im_cpm); 588 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 589 #elif defined(CONFIG_ATMEL_LCD) 590 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 591 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 592 return panel_info.cmap; 593 #elif defined(CONFIG_LCD_LOGO) 594 return bmp_logo_palette; 595 #else 596 return NULL; 597 #endif 598 } 599 600 #ifdef CONFIG_LCD_LOGO 601 void bitmap_plot(int x, int y) 602 { 603 #ifdef CONFIG_ATMEL_LCD 604 uint *cmap = (uint *)bmp_logo_palette; 605 #else 606 ushort *cmap = (ushort *)bmp_logo_palette; 607 #endif 608 ushort i, j; 609 uchar *bmap; 610 uchar *fb; 611 ushort *fb16; 612 #if defined(CONFIG_MPC823) 613 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 614 cpm8xx_t *cp = &(immr->im_cpm); 615 #endif 616 unsigned bpix = NBITS(panel_info.vl_bpix); 617 618 debug("Logo: width %d height %d colors %d cmap %d\n", 619 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 620 ARRAY_SIZE(bmp_logo_palette)); 621 622 bmap = &bmp_logo_bitmap[0]; 623 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 624 625 if (bpix < 12) { 626 /* Leave room for default color map 627 * default case: generic system with no cmap (most likely 16bpp) 628 * cmap was set to the source palette, so no change is done. 629 * This avoids even more ifdefs in the next stanza 630 */ 631 #if defined(CONFIG_MPC823) 632 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 633 #elif defined(CONFIG_ATMEL_LCD) 634 cmap = (uint *)configuration_get_cmap(); 635 #else 636 cmap = configuration_get_cmap(); 637 #endif 638 639 WATCHDOG_RESET(); 640 641 /* Set color map */ 642 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 643 ushort colreg = bmp_logo_palette[i]; 644 #ifdef CONFIG_ATMEL_LCD 645 uint lut_entry; 646 #ifdef CONFIG_ATMEL_LCD_BGR555 647 lut_entry = ((colreg & 0x000F) << 11) | 648 ((colreg & 0x00F0) << 2) | 649 ((colreg & 0x0F00) >> 7); 650 #else /* CONFIG_ATMEL_LCD_RGB565 */ 651 lut_entry = ((colreg & 0x000F) << 1) | 652 ((colreg & 0x00F0) << 3) | 653 ((colreg & 0x0F00) << 4); 654 #endif 655 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 656 cmap++; 657 #else /* !CONFIG_ATMEL_LCD */ 658 #ifdef CONFIG_SYS_INVERT_COLORS 659 *cmap++ = 0xffff - colreg; 660 #else 661 *cmap++ = colreg; 662 #endif 663 #endif /* CONFIG_ATMEL_LCD */ 664 } 665 666 WATCHDOG_RESET(); 667 668 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 669 memcpy(fb, bmap, BMP_LOGO_WIDTH); 670 bmap += BMP_LOGO_WIDTH; 671 fb += panel_info.vl_col; 672 } 673 } 674 else { /* true color mode */ 675 u16 col16; 676 fb16 = (ushort *)fb; 677 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 678 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 679 col16 = bmp_logo_palette[(bmap[j]-16)]; 680 fb16[j] = 681 ((col16 & 0x000F) << 1) | 682 ((col16 & 0x00F0) << 3) | 683 ((col16 & 0x0F00) << 4); 684 } 685 bmap += BMP_LOGO_WIDTH; 686 fb16 += panel_info.vl_col; 687 } 688 } 689 690 WATCHDOG_RESET(); 691 lcd_sync(); 692 } 693 #else 694 static inline void bitmap_plot(int x, int y) {} 695 #endif /* CONFIG_LCD_LOGO */ 696 697 /*----------------------------------------------------------------------*/ 698 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 699 /* 700 * Display the BMP file located at address bmp_image. 701 * Only uncompressed. 702 */ 703 704 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 705 #define BMP_ALIGN_CENTER 0x7FFF 706 707 static void splash_align_axis(int *axis, unsigned long panel_size, 708 unsigned long picture_size) 709 { 710 unsigned long panel_picture_delta = panel_size - picture_size; 711 unsigned long axis_alignment; 712 713 if (*axis == BMP_ALIGN_CENTER) 714 axis_alignment = panel_picture_delta / 2; 715 else if (*axis < 0) 716 axis_alignment = panel_picture_delta + *axis + 1; 717 else 718 return; 719 720 *axis = max(0, axis_alignment); 721 } 722 #endif 723 724 725 #ifdef CONFIG_LCD_BMP_RLE8 726 727 #define BMP_RLE8_ESCAPE 0 728 #define BMP_RLE8_EOL 0 729 #define BMP_RLE8_EOBMP 1 730 #define BMP_RLE8_DELTA 2 731 732 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 733 int cnt) 734 { 735 while (cnt > 0) { 736 *(*fbp)++ = cmap[*bmap++]; 737 cnt--; 738 } 739 } 740 741 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 742 { 743 ushort *fb = *fbp; 744 int cnt_8copy = cnt >> 3; 745 746 cnt -= cnt_8copy << 3; 747 while (cnt_8copy > 0) { 748 *fb++ = c; 749 *fb++ = c; 750 *fb++ = c; 751 *fb++ = c; 752 *fb++ = c; 753 *fb++ = c; 754 *fb++ = c; 755 *fb++ = c; 756 cnt_8copy--; 757 } 758 while (cnt > 0) { 759 *fb++ = c; 760 cnt--; 761 } 762 *fbp = fb; 763 } 764 765 /* 766 * Do not call this function directly, must be called from lcd_display_bitmap. 767 */ 768 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 769 int x_off, int y_off) 770 { 771 uchar *bmap; 772 ulong width, height; 773 ulong cnt, runlen; 774 int x, y; 775 int decode = 1; 776 777 width = le32_to_cpu(bmp->header.width); 778 height = le32_to_cpu(bmp->header.height); 779 bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset); 780 781 x = 0; 782 y = height - 1; 783 784 while (decode) { 785 if (bmap[0] == BMP_RLE8_ESCAPE) { 786 switch (bmap[1]) { 787 case BMP_RLE8_EOL: 788 /* end of line */ 789 bmap += 2; 790 x = 0; 791 y--; 792 /* 16bpix, 2-byte per pixel, width should *2 */ 793 fb -= (width * 2 + lcd_line_length); 794 break; 795 case BMP_RLE8_EOBMP: 796 /* end of bitmap */ 797 decode = 0; 798 break; 799 case BMP_RLE8_DELTA: 800 /* delta run */ 801 x += bmap[2]; 802 y -= bmap[3]; 803 /* 16bpix, 2-byte per pixel, x should *2 */ 804 fb = (uchar *) (lcd_base + (y + y_off - 1) 805 * lcd_line_length + (x + x_off) * 2); 806 bmap += 4; 807 break; 808 default: 809 /* unencoded run */ 810 runlen = bmap[1]; 811 bmap += 2; 812 if (y < height) { 813 if (x < width) { 814 if (x + runlen > width) 815 cnt = width - x; 816 else 817 cnt = runlen; 818 draw_unencoded_bitmap( 819 (ushort **)&fb, 820 bmap, cmap, cnt); 821 } 822 x += runlen; 823 } 824 bmap += runlen; 825 if (runlen & 1) 826 bmap++; 827 } 828 } else { 829 /* encoded run */ 830 if (y < height) { 831 runlen = bmap[0]; 832 if (x < width) { 833 /* aggregate the same code */ 834 while (bmap[0] == 0xff && 835 bmap[2] != BMP_RLE8_ESCAPE && 836 bmap[1] == bmap[3]) { 837 runlen += bmap[2]; 838 bmap += 2; 839 } 840 if (x + runlen > width) 841 cnt = width - x; 842 else 843 cnt = runlen; 844 draw_encoded_bitmap((ushort **)&fb, 845 cmap[bmap[1]], cnt); 846 } 847 x += runlen; 848 } 849 bmap += 2; 850 } 851 } 852 } 853 #endif 854 855 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200) 856 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 857 #else 858 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 859 #endif 860 861 #if defined(CONFIG_BMP_16BPP) 862 #if defined(CONFIG_ATMEL_LCD_BGR555) 863 static inline void fb_put_word(uchar **fb, uchar **from) 864 { 865 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 866 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 867 *from += 2; 868 } 869 #else 870 static inline void fb_put_word(uchar **fb, uchar **from) 871 { 872 *(*fb)++ = *(*from)++; 873 *(*fb)++ = *(*from)++; 874 } 875 #endif 876 #endif /* CONFIG_BMP_16BPP */ 877 878 int lcd_display_bitmap(ulong bmp_image, int x, int y) 879 { 880 #if !defined(CONFIG_MCC200) 881 ushort *cmap = NULL; 882 #endif 883 ushort *cmap_base = NULL; 884 ushort i, j; 885 uchar *fb; 886 bmp_image_t *bmp=(bmp_image_t *)bmp_image; 887 uchar *bmap; 888 ushort padded_width; 889 unsigned long width, height, byte_width; 890 unsigned long pwidth = panel_info.vl_col; 891 unsigned colors, bpix, bmp_bpix; 892 893 if (!bmp || !(bmp->header.signature[0] == 'B' && 894 bmp->header.signature[1] == 'M')) { 895 printf("Error: no valid bmp image at %lx\n", bmp_image); 896 897 return 1; 898 } 899 900 width = le32_to_cpu(bmp->header.width); 901 height = le32_to_cpu(bmp->header.height); 902 bmp_bpix = le16_to_cpu(bmp->header.bit_count); 903 colors = 1 << bmp_bpix; 904 905 bpix = NBITS(panel_info.vl_bpix); 906 907 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 908 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 909 bpix, bmp_bpix); 910 911 return 1; 912 } 913 914 /* We support displaying 8bpp BMPs on 16bpp LCDs */ 915 if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) { 916 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 917 bpix, 918 le16_to_cpu(bmp->header.bit_count)); 919 920 return 1; 921 } 922 923 debug("Display-bmp: %d x %d with %d colors\n", 924 (int)width, (int)height, (int)colors); 925 926 #if !defined(CONFIG_MCC200) 927 /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */ 928 if (bmp_bpix == 8) { 929 cmap = configuration_get_cmap(); 930 cmap_base = cmap; 931 932 /* Set color map */ 933 for (i = 0; i < colors; ++i) { 934 bmp_color_table_entry_t cte = bmp->color_table[i]; 935 #if !defined(CONFIG_ATMEL_LCD) 936 ushort colreg = 937 ( ((cte.red) << 8) & 0xf800) | 938 ( ((cte.green) << 3) & 0x07e0) | 939 ( ((cte.blue) >> 3) & 0x001f) ; 940 #ifdef CONFIG_SYS_INVERT_COLORS 941 *cmap = 0xffff - colreg; 942 #else 943 *cmap = colreg; 944 #endif 945 #if defined(CONFIG_MPC823) 946 cmap--; 947 #else 948 cmap++; 949 #endif 950 #else /* CONFIG_ATMEL_LCD */ 951 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 952 #endif 953 } 954 } 955 #endif 956 957 /* 958 * BMP format for Monochrome assumes that the state of a 959 * pixel is described on a per Bit basis, not per Byte. 960 * So, in case of Monochrome BMP we should align widths 961 * on a byte boundary and convert them from Bit to Byte 962 * units. 963 * Probably, PXA250 and MPC823 process 1bpp BMP images in 964 * their own ways, so make the converting to be MCC200 965 * specific. 966 */ 967 #if defined(CONFIG_MCC200) 968 if (bpix == 1) { 969 width = ((width + 7) & ~7) >> 3; 970 x = ((x + 7) & ~7) >> 3; 971 pwidth= ((pwidth + 7) & ~7) >> 3; 972 } 973 #endif 974 975 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 976 977 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 978 splash_align_axis(&x, pwidth, width); 979 splash_align_axis(&y, panel_info.vl_row, height); 980 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 981 982 if ((x + width) > pwidth) 983 width = pwidth - x; 984 if ((y + height) > panel_info.vl_row) 985 height = panel_info.vl_row - y; 986 987 bmap = (uchar *) bmp + le32_to_cpu(bmp->header.data_offset); 988 fb = (uchar *) (lcd_base + 989 (y + height - 1) * lcd_line_length + x * bpix / 8); 990 991 switch (bmp_bpix) { 992 case 1: /* pass through */ 993 case 8: 994 #ifdef CONFIG_LCD_BMP_RLE8 995 if (le32_to_cpu(bmp->header.compression) == BMP_BI_RLE8) { 996 if (bpix != 16) { 997 /* TODO implement render code for bpix != 16 */ 998 printf("Error: only support 16 bpix"); 999 return 1; 1000 } 1001 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 1002 break; 1003 } 1004 #endif 1005 1006 if (bpix != 16) 1007 byte_width = width; 1008 else 1009 byte_width = width * 2; 1010 1011 for (i = 0; i < height; ++i) { 1012 WATCHDOG_RESET(); 1013 for (j = 0; j < width; j++) { 1014 if (bpix != 16) { 1015 FB_PUT_BYTE(fb, bmap); 1016 } else { 1017 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1018 fb += sizeof(uint16_t) / sizeof(*fb); 1019 } 1020 } 1021 bmap += (padded_width - width); 1022 fb -= byte_width + lcd_line_length; 1023 } 1024 break; 1025 1026 #if defined(CONFIG_BMP_16BPP) 1027 case 16: 1028 for (i = 0; i < height; ++i) { 1029 WATCHDOG_RESET(); 1030 for (j = 0; j < width; j++) 1031 fb_put_word(&fb, &bmap); 1032 1033 bmap += (padded_width - width) * 2; 1034 fb -= width * 2 + lcd_line_length; 1035 } 1036 break; 1037 #endif /* CONFIG_BMP_16BPP */ 1038 1039 #if defined(CONFIG_BMP_32BPP) 1040 case 32: 1041 for (i = 0; i < height; ++i) { 1042 for (j = 0; j < width; j++) { 1043 *(fb++) = *(bmap++); 1044 *(fb++) = *(bmap++); 1045 *(fb++) = *(bmap++); 1046 *(fb++) = *(bmap++); 1047 } 1048 fb -= lcd_line_length + width * (bpix / 8); 1049 } 1050 break; 1051 #endif /* CONFIG_BMP_32BPP */ 1052 default: 1053 break; 1054 }; 1055 1056 lcd_sync(); 1057 return 0; 1058 } 1059 #endif 1060 1061 static void *lcd_logo(void) 1062 { 1063 #ifdef CONFIG_SPLASH_SCREEN 1064 char *s; 1065 ulong addr; 1066 static int do_splash = 1; 1067 1068 if (do_splash && (s = getenv("splashimage")) != NULL) { 1069 int x = 0, y = 0; 1070 do_splash = 0; 1071 1072 if (splash_screen_prepare()) 1073 return (void *)lcd_base; 1074 1075 addr = simple_strtoul (s, NULL, 16); 1076 1077 splash_get_pos(&x, &y); 1078 1079 if (bmp_display(addr, x, y) == 0) 1080 return (void *)lcd_base; 1081 } 1082 #endif /* CONFIG_SPLASH_SCREEN */ 1083 1084 bitmap_plot(0, 0); 1085 1086 #ifdef CONFIG_LCD_INFO 1087 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1088 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1089 lcd_show_board_info(); 1090 #endif /* CONFIG_LCD_INFO */ 1091 1092 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1093 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1094 #else 1095 return (void *)lcd_base; 1096 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1097 } 1098 1099 #ifdef CONFIG_SPLASHIMAGE_GUARD 1100 static int on_splashimage(const char *name, const char *value, enum env_op op, 1101 int flags) 1102 { 1103 ulong addr; 1104 int aligned; 1105 1106 if (op == env_op_delete) 1107 return 0; 1108 1109 addr = simple_strtoul(value, NULL, 16); 1110 /* See README.displaying-bmps */ 1111 aligned = (addr % 4 == 2); 1112 if (!aligned) { 1113 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1114 return -1; 1115 } 1116 1117 return 0; 1118 } 1119 1120 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1121 #endif 1122 1123 void lcd_position_cursor(unsigned col, unsigned row) 1124 { 1125 console_col = min(col, CONSOLE_COLS - 1); 1126 console_row = min(row, CONSOLE_ROWS - 1); 1127 } 1128 1129 int lcd_get_pixel_width(void) 1130 { 1131 return panel_info.vl_col; 1132 } 1133 1134 int lcd_get_pixel_height(void) 1135 { 1136 return panel_info.vl_row; 1137 } 1138 1139 int lcd_get_screen_rows(void) 1140 { 1141 return CONSOLE_ROWS; 1142 } 1143 1144 int lcd_get_screen_columns(void) 1145 { 1146 return CONSOLE_COLS; 1147 } 1148 1149 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1150 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1151 { 1152 u32 stride; 1153 fdt32_t cells[2]; 1154 int ret; 1155 static const char format[] = 1156 #if LCD_BPP == LCD_COLOR16 1157 "r5g6b5"; 1158 #else 1159 ""; 1160 #endif 1161 1162 if (!format[0]) 1163 return -1; 1164 1165 stride = panel_info.vl_col * 2; 1166 1167 cells[0] = cpu_to_fdt32(gd->fb_base); 1168 cells[1] = cpu_to_fdt32(stride * panel_info.vl_row); 1169 ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2); 1170 if (ret < 0) 1171 return -1; 1172 1173 cells[0] = cpu_to_fdt32(panel_info.vl_col); 1174 ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0])); 1175 if (ret < 0) 1176 return -1; 1177 1178 cells[0] = cpu_to_fdt32(panel_info.vl_row); 1179 ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0])); 1180 if (ret < 0) 1181 return -1; 1182 1183 cells[0] = cpu_to_fdt32(stride); 1184 ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0])); 1185 if (ret < 0) 1186 return -1; 1187 1188 ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1); 1189 if (ret < 0) 1190 return -1; 1191 1192 ret = fdt_delprop(blob, off, "status"); 1193 if (ret < 0) 1194 return -1; 1195 1196 return 0; 1197 } 1198 1199 int lcd_dt_simplefb_add_node(void *blob) 1200 { 1201 static const char compat[] = "simple-framebuffer"; 1202 static const char disabled[] = "disabled"; 1203 int off, ret; 1204 1205 off = fdt_add_subnode(blob, 0, "framebuffer"); 1206 if (off < 0) 1207 return -1; 1208 1209 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1210 if (ret < 0) 1211 return -1; 1212 1213 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1214 if (ret < 0) 1215 return -1; 1216 1217 return lcd_dt_simplefb_configure_node(blob, off); 1218 } 1219 1220 int lcd_dt_simplefb_enable_existing_node(void *blob) 1221 { 1222 int off; 1223 1224 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1225 if (off < 0) 1226 return -1; 1227 1228 return lcd_dt_simplefb_configure_node(blob, off); 1229 } 1230 #endif 1231