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 #include <fdt_support.h> 34 35 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \ 36 defined(CONFIG_CPU_MONAHANS) 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 (LCD_BPP == LCD_COLOR32) 105 # define COLOR_MASK(c) (c) 106 #else 107 # error Unsupported LCD BPP. 108 #endif 109 110 DECLARE_GLOBAL_DATA_PTR; 111 112 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 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 void lcd_setfgcolor(int color); 120 static void lcd_setbgcolor(int color); 121 122 static int lcd_color_fg; 123 static int lcd_color_bg; 124 int lcd_line_length; 125 126 char lcd_is_enabled = 0; 127 128 static short console_col; 129 static short console_row; 130 131 static void *lcd_console_address; 132 static void *lcd_base; /* Start of framebuffer memory */ 133 134 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 135 136 /************************************************************************/ 137 138 /* Flush LCD activity to the caches */ 139 void lcd_sync(void) 140 { 141 /* 142 * flush_dcache_range() is declared in common.h but it seems that some 143 * architectures do not actually implement it. Is there a way to find 144 * out whether it exists? For now, ARM is safe. 145 */ 146 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 147 int line_length; 148 149 if (lcd_flush_dcache) 150 flush_dcache_range((u32)lcd_base, 151 (u32)(lcd_base + lcd_get_size(&line_length))); 152 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 153 static ulong last_sync; 154 155 if (get_timer(last_sync) > 10) { 156 sandbox_sdl_sync(lcd_base); 157 last_sync = get_timer(0); 158 } 159 #endif 160 } 161 162 void lcd_set_flush_dcache(int flush) 163 { 164 lcd_flush_dcache = (flush != 0); 165 } 166 167 /*----------------------------------------------------------------------*/ 168 169 static void console_scrollup(void) 170 { 171 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 172 173 /* Copy up rows ignoring those that will be overwritten */ 174 memcpy(CONSOLE_ROW_FIRST, 175 lcd_console_address + CONSOLE_ROW_SIZE * rows, 176 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 177 178 /* Clear the last rows */ 179 #if (LCD_BPP != LCD_COLOR32) 180 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 181 COLOR_MASK(lcd_color_bg), 182 CONSOLE_ROW_SIZE * rows); 183 #else 184 u32 *ppix = lcd_console_address + 185 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows; 186 u32 i; 187 for (i = 0; 188 i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix); 189 i++) { 190 *ppix++ = COLOR_MASK(lcd_color_bg); 191 } 192 #endif 193 lcd_sync(); 194 console_row -= rows; 195 } 196 197 /*----------------------------------------------------------------------*/ 198 199 static inline void console_back(void) 200 { 201 if (--console_col < 0) { 202 console_col = CONSOLE_COLS-1 ; 203 if (--console_row < 0) 204 console_row = 0; 205 } 206 207 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 208 console_row * VIDEO_FONT_HEIGHT, ' '); 209 } 210 211 /*----------------------------------------------------------------------*/ 212 213 static inline void console_newline(void) 214 { 215 console_col = 0; 216 217 /* Check if we need to scroll the terminal */ 218 if (++console_row >= CONSOLE_ROWS) 219 console_scrollup(); 220 else 221 lcd_sync(); 222 } 223 224 /*----------------------------------------------------------------------*/ 225 226 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 227 { 228 lcd_putc(c); 229 } 230 231 void lcd_putc(const char c) 232 { 233 if (!lcd_is_enabled) { 234 serial_putc(c); 235 236 return; 237 } 238 239 switch (c) { 240 case '\r': 241 console_col = 0; 242 243 return; 244 case '\n': 245 console_newline(); 246 247 return; 248 case '\t': /* Tab (8 chars alignment) */ 249 console_col += 8; 250 console_col &= ~7; 251 252 if (console_col >= CONSOLE_COLS) 253 console_newline(); 254 255 return; 256 case '\b': 257 console_back(); 258 259 return; 260 default: 261 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH, 262 console_row * VIDEO_FONT_HEIGHT, c); 263 if (++console_col >= CONSOLE_COLS) 264 console_newline(); 265 } 266 } 267 268 /*----------------------------------------------------------------------*/ 269 270 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 271 { 272 lcd_puts(s); 273 } 274 275 void lcd_puts(const char *s) 276 { 277 if (!lcd_is_enabled) { 278 serial_puts(s); 279 280 return; 281 } 282 283 while (*s) 284 lcd_putc(*s++); 285 286 lcd_sync(); 287 } 288 289 /*----------------------------------------------------------------------*/ 290 291 void lcd_printf(const char *fmt, ...) 292 { 293 va_list args; 294 char buf[CONFIG_SYS_PBSIZE]; 295 296 va_start(args, fmt); 297 vsprintf(buf, fmt, args); 298 va_end(args); 299 300 lcd_puts(buf); 301 } 302 303 /************************************************************************/ 304 /* ** Low-Level Graphics Routines */ 305 /************************************************************************/ 306 307 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 308 { 309 uchar *dest; 310 ushort row; 311 312 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 313 y += BMP_LOGO_HEIGHT; 314 #endif 315 316 #if LCD_BPP == LCD_MONOCHROME 317 ushort off = x * (1 << LCD_BPP) % 8; 318 #endif 319 320 dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8); 321 322 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 323 uchar *s = str; 324 int i; 325 #if LCD_BPP == LCD_COLOR16 326 ushort *d = (ushort *)dest; 327 #elif LCD_BPP == LCD_COLOR32 328 u32 *d = (u32 *)dest; 329 #else 330 uchar *d = dest; 331 #endif 332 333 #if LCD_BPP == LCD_MONOCHROME 334 uchar rest = *d & -(1 << (8 - off)); 335 uchar sym; 336 #endif 337 for (i = 0; i < count; ++i) { 338 uchar c, bits; 339 340 c = *s++; 341 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 342 343 #if LCD_BPP == LCD_MONOCHROME 344 sym = (COLOR_MASK(lcd_color_fg) & bits) | 345 (COLOR_MASK(lcd_color_bg) & ~bits); 346 347 *d++ = rest | (sym >> off); 348 rest = sym << (8-off); 349 #else /* LCD_BPP == LCD_COLOR8 or LCD_COLOR16 or LCD_COLOR32 */ 350 for (c = 0; c < 8; ++c) { 351 *d++ = (bits & 0x80) ? 352 lcd_color_fg : lcd_color_bg; 353 bits <<= 1; 354 } 355 #endif 356 } 357 #if LCD_BPP == LCD_MONOCHROME 358 *d = rest | (*d & ((1 << (8 - off)) - 1)); 359 #endif 360 } 361 } 362 363 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 364 { 365 lcd_drawchars(x, y, &c, 1); 366 } 367 368 /************************************************************************/ 369 /** Small utility to check that you got the colours right */ 370 /************************************************************************/ 371 #ifdef LCD_TEST_PATTERN 372 373 #define N_BLK_VERT 2 374 #define N_BLK_HOR 3 375 376 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 377 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 378 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 379 }; 380 381 static void test_pattern(void) 382 { 383 ushort v_max = panel_info.vl_row; 384 ushort h_max = panel_info.vl_col; 385 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 386 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 387 ushort v, h; 388 uchar *pix = (uchar *)lcd_base; 389 390 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 391 h_max, v_max, h_step, v_step); 392 393 /* WARNING: Code silently assumes 8bit/pixel */ 394 for (v = 0; v < v_max; ++v) { 395 uchar iy = v / v_step; 396 for (h = 0; h < h_max; ++h) { 397 uchar ix = N_BLK_HOR * iy + h / h_step; 398 *pix++ = test_colors[ix]; 399 } 400 } 401 } 402 #endif /* LCD_TEST_PATTERN */ 403 404 405 /************************************************************************/ 406 /* ** GENERIC Initialization Routines */ 407 /************************************************************************/ 408 /* 409 * With most lcd drivers the line length is set up 410 * by calculating it from panel_info parameters. Some 411 * drivers need to calculate the line length differently, 412 * so make the function weak to allow overriding it. 413 */ 414 __weak int lcd_get_size(int *line_length) 415 { 416 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 417 return *line_length * panel_info.vl_row; 418 } 419 420 int drv_lcd_init(void) 421 { 422 struct stdio_dev lcddev; 423 int rc; 424 425 lcd_base = map_sysmem(gd->fb_base, 0); 426 427 lcd_init(lcd_base); /* LCD initialization */ 428 429 /* Device initialization */ 430 memset(&lcddev, 0, sizeof(lcddev)); 431 432 strcpy(lcddev.name, "lcd"); 433 lcddev.ext = 0; /* No extensions */ 434 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 435 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 436 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 437 438 rc = stdio_register(&lcddev); 439 440 return (rc == 0) ? 1 : rc; 441 } 442 443 /*----------------------------------------------------------------------*/ 444 void lcd_clear(void) 445 { 446 #if LCD_BPP == LCD_MONOCHROME 447 /* Setting the palette */ 448 lcd_initcolregs(); 449 450 #elif LCD_BPP == LCD_COLOR8 451 /* Setting the palette */ 452 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 453 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 454 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 455 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 456 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 457 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 458 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 459 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 460 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 461 #endif 462 463 #ifndef CONFIG_SYS_WHITE_ON_BLACK 464 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 465 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 466 #else 467 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 468 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 469 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 470 471 #ifdef LCD_TEST_PATTERN 472 test_pattern(); 473 #else 474 /* set framebuffer to background color */ 475 #if (LCD_BPP != LCD_COLOR32) 476 memset((char *)lcd_base, 477 COLOR_MASK(lcd_color_bg), 478 lcd_line_length * panel_info.vl_row); 479 #else 480 u32 *ppix = lcd_base; 481 u32 i; 482 for (i = 0; 483 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 484 i++) { 485 *ppix++ = COLOR_MASK(lcd_color_bg); 486 } 487 #endif 488 #endif 489 /* Paint the logo and retrieve LCD base address */ 490 debug("[LCD] Drawing the logo...\n"); 491 lcd_console_address = lcd_logo(); 492 493 console_col = 0; 494 console_row = 0; 495 lcd_sync(); 496 } 497 498 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 499 char *const argv[]) 500 { 501 lcd_clear(); 502 return 0; 503 } 504 505 U_BOOT_CMD( 506 cls, 1, 1, do_lcd_clear, 507 "clear screen", 508 "" 509 ); 510 511 /*----------------------------------------------------------------------*/ 512 513 static int lcd_init(void *lcdbase) 514 { 515 /* Initialize the lcd controller */ 516 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 517 518 lcd_ctrl_init(lcdbase); 519 520 /* 521 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 522 * the 'lcdbase' argument and uses custom lcd base address 523 * by setting up gd->fb_base. Check for this condition and fixup 524 * 'lcd_base' address. 525 */ 526 if (map_to_sysmem(lcdbase) != gd->fb_base) 527 lcd_base = map_sysmem(gd->fb_base, 0); 528 529 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 530 531 lcd_get_size(&lcd_line_length); 532 lcd_is_enabled = 1; 533 lcd_clear(); 534 lcd_enable(); 535 536 /* Initialize the console */ 537 console_col = 0; 538 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 539 console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 540 #else 541 console_row = 1; /* leave 1 blank line below logo */ 542 #endif 543 544 return 0; 545 } 546 547 548 /************************************************************************/ 549 /* ** ROM capable initialization part - needed to reserve FB memory */ 550 /************************************************************************/ 551 /* 552 * This is called early in the system initialization to grab memory 553 * for the LCD controller. 554 * Returns new address for monitor, after reserving LCD buffer memory 555 * 556 * Note that this is running from ROM, so no write access to global data. 557 */ 558 ulong lcd_setmem(ulong addr) 559 { 560 ulong size; 561 int line_length; 562 563 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 564 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 565 566 size = lcd_get_size(&line_length); 567 568 /* Round up to nearest full page, or MMU section if defined */ 569 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 570 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 571 572 /* Allocate pages for the frame buffer. */ 573 addr -= size; 574 575 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 576 size >> 10, addr); 577 578 return addr; 579 } 580 581 /*----------------------------------------------------------------------*/ 582 583 static void lcd_setfgcolor(int color) 584 { 585 lcd_color_fg = color; 586 } 587 588 /*----------------------------------------------------------------------*/ 589 590 static void lcd_setbgcolor(int color) 591 { 592 lcd_color_bg = color; 593 } 594 595 /************************************************************************/ 596 /* ** Chipset depending Bitmap / Logo stuff... */ 597 /************************************************************************/ 598 static inline ushort *configuration_get_cmap(void) 599 { 600 #if defined CONFIG_CPU_PXA 601 struct pxafb_info *fbi = &panel_info.pxa; 602 return (ushort *)fbi->palette; 603 #elif defined(CONFIG_MPC823) 604 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 605 cpm8xx_t *cp = &(immr->im_cpm); 606 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 607 #elif defined(CONFIG_ATMEL_LCD) 608 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 609 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 610 return panel_info.cmap; 611 #elif defined(CONFIG_LCD_LOGO) 612 return bmp_logo_palette; 613 #else 614 return NULL; 615 #endif 616 } 617 618 #ifdef CONFIG_LCD_LOGO 619 void bitmap_plot(int x, int y) 620 { 621 #ifdef CONFIG_ATMEL_LCD 622 uint *cmap = (uint *)bmp_logo_palette; 623 #else 624 ushort *cmap = (ushort *)bmp_logo_palette; 625 #endif 626 ushort i, j; 627 uchar *bmap; 628 uchar *fb; 629 ushort *fb16; 630 #if defined(CONFIG_MPC823) 631 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 632 cpm8xx_t *cp = &(immr->im_cpm); 633 #endif 634 unsigned bpix = NBITS(panel_info.vl_bpix); 635 636 debug("Logo: width %d height %d colors %d cmap %d\n", 637 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 638 ARRAY_SIZE(bmp_logo_palette)); 639 640 bmap = &bmp_logo_bitmap[0]; 641 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 642 643 if (bpix < 12) { 644 /* Leave room for default color map 645 * default case: generic system with no cmap (most likely 16bpp) 646 * cmap was set to the source palette, so no change is done. 647 * This avoids even more ifdefs in the next stanza 648 */ 649 #if defined(CONFIG_MPC823) 650 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 651 #elif defined(CONFIG_ATMEL_LCD) 652 cmap = (uint *)configuration_get_cmap(); 653 #else 654 cmap = configuration_get_cmap(); 655 #endif 656 657 WATCHDOG_RESET(); 658 659 /* Set color map */ 660 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 661 ushort colreg = bmp_logo_palette[i]; 662 #ifdef CONFIG_ATMEL_LCD 663 uint lut_entry; 664 #ifdef CONFIG_ATMEL_LCD_BGR555 665 lut_entry = ((colreg & 0x000F) << 11) | 666 ((colreg & 0x00F0) << 2) | 667 ((colreg & 0x0F00) >> 7); 668 #else /* CONFIG_ATMEL_LCD_RGB565 */ 669 lut_entry = ((colreg & 0x000F) << 1) | 670 ((colreg & 0x00F0) << 3) | 671 ((colreg & 0x0F00) << 4); 672 #endif 673 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 674 cmap++; 675 #else /* !CONFIG_ATMEL_LCD */ 676 *cmap++ = colreg; 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, (int)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 = get_unaligned_le32(&bmp->header.width); 792 height = get_unaligned_le32(&bmp->header.height); 793 bmap = (uchar *)bmp + get_unaligned_le32(&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) 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 ushort *cmap = NULL; 895 ushort *cmap_base = NULL; 896 ushort i, j; 897 uchar *fb; 898 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 899 uchar *bmap; 900 ushort padded_width; 901 unsigned long width, height, byte_width; 902 unsigned long pwidth = panel_info.vl_col; 903 unsigned colors, bpix, bmp_bpix; 904 905 if (!bmp || !(bmp->header.signature[0] == 'B' && 906 bmp->header.signature[1] == 'M')) { 907 printf("Error: no valid bmp image at %lx\n", bmp_image); 908 909 return 1; 910 } 911 912 width = get_unaligned_le32(&bmp->header.width); 913 height = get_unaligned_le32(&bmp->header.height); 914 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 915 916 colors = 1 << bmp_bpix; 917 918 bpix = NBITS(panel_info.vl_bpix); 919 920 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 921 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 922 bpix, bmp_bpix); 923 924 return 1; 925 } 926 927 /* 928 * We support displaying 8bpp BMPs on 16bpp LCDs 929 * and displaying 24bpp BMPs on 32bpp LCDs 930 * */ 931 if (bpix != bmp_bpix && 932 !(bmp_bpix == 8 && bpix == 16) && 933 !(bmp_bpix == 24 && bpix == 32)) { 934 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 935 bpix, get_unaligned_le16(&bmp->header.bit_count)); 936 return 1; 937 } 938 939 debug("Display-bmp: %d x %d with %d colors\n", 940 (int)width, (int)height, (int)colors); 941 942 if (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 *cmap = colreg; 955 #if defined(CONFIG_MPC823) 956 cmap--; 957 #else 958 cmap++; 959 #endif 960 #else /* CONFIG_ATMEL_LCD */ 961 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 962 #endif 963 } 964 } 965 966 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 967 968 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 969 splash_align_axis(&x, pwidth, width); 970 splash_align_axis(&y, panel_info.vl_row, height); 971 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 972 973 if ((x + width) > pwidth) 974 width = pwidth - x; 975 if ((y + height) > panel_info.vl_row) 976 height = panel_info.vl_row - y; 977 978 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 979 fb = (uchar *)(lcd_base + 980 (y + height - 1) * lcd_line_length + x * bpix / 8); 981 982 switch (bmp_bpix) { 983 case 1: /* pass through */ 984 case 8: { 985 #ifdef CONFIG_LCD_BMP_RLE8 986 u32 compression = get_unaligned_le32(&bmp->header.compression); 987 if (compression == BMP_BI_RLE8) { 988 if (bpix != 16) { 989 /* TODO implement render code for bpix != 16 */ 990 printf("Error: only support 16 bpix"); 991 return 1; 992 } 993 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 994 break; 995 } 996 #endif 997 998 if (bpix != 16) 999 byte_width = width; 1000 else 1001 byte_width = width * 2; 1002 1003 for (i = 0; i < height; ++i) { 1004 WATCHDOG_RESET(); 1005 for (j = 0; j < width; j++) { 1006 if (bpix != 16) { 1007 FB_PUT_BYTE(fb, bmap); 1008 } else { 1009 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1010 fb += sizeof(uint16_t) / sizeof(*fb); 1011 } 1012 } 1013 bmap += (padded_width - width); 1014 fb -= byte_width + lcd_line_length; 1015 } 1016 break; 1017 } 1018 #if defined(CONFIG_BMP_16BPP) 1019 case 16: 1020 for (i = 0; i < height; ++i) { 1021 WATCHDOG_RESET(); 1022 for (j = 0; j < width; j++) 1023 fb_put_word(&fb, &bmap); 1024 1025 bmap += (padded_width - width) * 2; 1026 fb -= width * 2 + lcd_line_length; 1027 } 1028 break; 1029 #endif /* CONFIG_BMP_16BPP */ 1030 #if defined(CONFIG_BMP_24BMP) 1031 case 24: 1032 for (i = 0; i < height; ++i) { 1033 for (j = 0; j < width; j++) { 1034 *(fb++) = *(bmap++); 1035 *(fb++) = *(bmap++); 1036 *(fb++) = *(bmap++); 1037 *(fb++) = 0; 1038 } 1039 fb -= lcd_line_length + width * (bpix / 8); 1040 } 1041 break; 1042 #endif /* CONFIG_BMP_24BMP */ 1043 #if defined(CONFIG_BMP_32BPP) 1044 case 32: 1045 for (i = 0; i < height; ++i) { 1046 for (j = 0; j < width; j++) { 1047 *(fb++) = *(bmap++); 1048 *(fb++) = *(bmap++); 1049 *(fb++) = *(bmap++); 1050 *(fb++) = *(bmap++); 1051 } 1052 fb -= lcd_line_length + width * (bpix / 8); 1053 } 1054 break; 1055 #endif /* CONFIG_BMP_32BPP */ 1056 default: 1057 break; 1058 }; 1059 1060 lcd_sync(); 1061 return 0; 1062 } 1063 #endif 1064 1065 static void *lcd_logo(void) 1066 { 1067 #ifdef CONFIG_SPLASH_SCREEN 1068 char *s; 1069 ulong addr; 1070 static int do_splash = 1; 1071 1072 if (do_splash && (s = getenv("splashimage")) != NULL) { 1073 int x = 0, y = 0; 1074 do_splash = 0; 1075 1076 if (splash_screen_prepare()) 1077 return (void *)lcd_base; 1078 1079 addr = simple_strtoul (s, NULL, 16); 1080 1081 splash_get_pos(&x, &y); 1082 1083 if (bmp_display(addr, x, y) == 0) 1084 return (void *)lcd_base; 1085 } 1086 #endif /* CONFIG_SPLASH_SCREEN */ 1087 1088 bitmap_plot(0, 0); 1089 1090 #ifdef CONFIG_LCD_INFO 1091 console_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1092 console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1093 lcd_show_board_info(); 1094 #endif /* CONFIG_LCD_INFO */ 1095 1096 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1097 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1098 #else 1099 return (void *)lcd_base; 1100 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1101 } 1102 1103 #ifdef CONFIG_SPLASHIMAGE_GUARD 1104 static int on_splashimage(const char *name, const char *value, enum env_op op, 1105 int flags) 1106 { 1107 ulong addr; 1108 int aligned; 1109 1110 if (op == env_op_delete) 1111 return 0; 1112 1113 addr = simple_strtoul(value, NULL, 16); 1114 /* See README.displaying-bmps */ 1115 aligned = (addr % 4 == 2); 1116 if (!aligned) { 1117 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1118 return -1; 1119 } 1120 1121 return 0; 1122 } 1123 1124 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1125 #endif 1126 1127 void lcd_position_cursor(unsigned col, unsigned row) 1128 { 1129 console_col = min_t(short, col, CONSOLE_COLS - 1); 1130 console_row = min_t(short, row, CONSOLE_ROWS - 1); 1131 } 1132 1133 int lcd_get_pixel_width(void) 1134 { 1135 return panel_info.vl_col; 1136 } 1137 1138 int lcd_get_pixel_height(void) 1139 { 1140 return panel_info.vl_row; 1141 } 1142 1143 int lcd_get_screen_rows(void) 1144 { 1145 return CONSOLE_ROWS; 1146 } 1147 1148 int lcd_get_screen_columns(void) 1149 { 1150 return CONSOLE_COLS; 1151 } 1152 1153 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1154 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1155 { 1156 #if LCD_BPP == LCD_COLOR16 1157 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 1158 panel_info.vl_col, panel_info.vl_row, 1159 panel_info.vl_col * 2, "r5g6b5"); 1160 #else 1161 return -1; 1162 #endif 1163 } 1164 1165 int lcd_dt_simplefb_add_node(void *blob) 1166 { 1167 static const char compat[] = "simple-framebuffer"; 1168 static const char disabled[] = "disabled"; 1169 int off, ret; 1170 1171 off = fdt_add_subnode(blob, 0, "framebuffer"); 1172 if (off < 0) 1173 return -1; 1174 1175 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1176 if (ret < 0) 1177 return -1; 1178 1179 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1180 if (ret < 0) 1181 return -1; 1182 1183 return lcd_dt_simplefb_configure_node(blob, off); 1184 } 1185 1186 int lcd_dt_simplefb_enable_existing_node(void *blob) 1187 { 1188 int off; 1189 1190 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1191 if (off < 0) 1192 return -1; 1193 1194 return lcd_dt_simplefb_configure_node(blob, off); 1195 } 1196 #endif 1197