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 #define CONSOLE_ROW_SIZE (VIDEO_FONT_HEIGHT * lcd_line_length) 85 #define CONSOLE_ROW_FIRST lcd_console_address 86 #define CONSOLE_ROW_SECOND (lcd_console_address + CONSOLE_ROW_SIZE) 87 #define CONSOLE_ROW_LAST (lcd_console_address + CONSOLE_SIZE \ 88 - CONSOLE_ROW_SIZE) 89 #define CONSOLE_SIZE (CONSOLE_ROW_SIZE * console_rows) 90 #define CONSOLE_SCROLL_SIZE (CONSOLE_SIZE - CONSOLE_ROW_SIZE) 91 92 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \ 93 (LCD_BPP != LCD_COLOR32) 94 # error Unsupported LCD BPP. 95 #endif 96 97 DECLARE_GLOBAL_DATA_PTR; 98 99 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 100 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 101 102 static int lcd_init(void *lcdbase); 103 104 static void *lcd_logo(void); 105 106 static void lcd_setfgcolor(int color); 107 static void lcd_setbgcolor(int color); 108 109 static int lcd_color_fg; 110 static int lcd_color_bg; 111 int lcd_line_length; 112 113 char lcd_is_enabled = 0; 114 115 static short console_curr_col; 116 static short console_curr_row; 117 static short console_cols; 118 static short console_rows; 119 120 static void *lcd_console_address; 121 static void *lcd_base; /* Start of framebuffer memory */ 122 123 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 124 125 /************************************************************************/ 126 127 /* Flush LCD activity to the caches */ 128 void lcd_sync(void) 129 { 130 /* 131 * flush_dcache_range() is declared in common.h but it seems that some 132 * architectures do not actually implement it. Is there a way to find 133 * out whether it exists? For now, ARM is safe. 134 */ 135 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 136 int line_length; 137 138 if (lcd_flush_dcache) 139 flush_dcache_range((u32)lcd_base, 140 (u32)(lcd_base + lcd_get_size(&line_length))); 141 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 142 static ulong last_sync; 143 144 if (get_timer(last_sync) > 10) { 145 sandbox_sdl_sync(lcd_base); 146 last_sync = get_timer(0); 147 } 148 #endif 149 } 150 151 void lcd_set_flush_dcache(int flush) 152 { 153 lcd_flush_dcache = (flush != 0); 154 } 155 156 void lcd_init_console(void *address, int rows, int cols) 157 { 158 console_curr_col = 0; 159 console_curr_row = 0; 160 console_cols = cols; 161 console_rows = rows; 162 lcd_console_address = address; 163 } 164 165 void lcd_set_col(short col) 166 { 167 console_curr_col = col; 168 } 169 170 void lcd_set_row(short row) 171 { 172 console_curr_row = row; 173 } 174 175 /*----------------------------------------------------------------------*/ 176 177 static void console_scrollup(void) 178 { 179 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 180 int bg_color = lcd_getbgcolor(); 181 182 /* Copy up rows ignoring those that will be overwritten */ 183 memcpy(CONSOLE_ROW_FIRST, 184 lcd_console_address + CONSOLE_ROW_SIZE * rows, 185 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 186 187 /* Clear the last rows */ 188 #if (LCD_BPP != LCD_COLOR32) 189 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 190 bg_color, CONSOLE_ROW_SIZE * rows); 191 #else 192 u32 *ppix = lcd_console_address + 193 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows; 194 u32 i; 195 for (i = 0; 196 i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix); 197 i++) { 198 *ppix++ = bg_color; 199 } 200 #endif 201 lcd_sync(); 202 console_curr_row -= rows; 203 } 204 205 /*----------------------------------------------------------------------*/ 206 207 static inline void console_back(void) 208 { 209 if (--console_curr_col < 0) { 210 console_curr_col = console_cols - 1; 211 if (--console_curr_row < 0) 212 console_curr_row = 0; 213 } 214 215 lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH, 216 console_curr_row * VIDEO_FONT_HEIGHT, ' '); 217 } 218 219 /*----------------------------------------------------------------------*/ 220 221 static inline void console_newline(void) 222 { 223 console_curr_col = 0; 224 225 /* Check if we need to scroll the terminal */ 226 if (++console_curr_row >= console_rows) 227 console_scrollup(); 228 else 229 lcd_sync(); 230 } 231 232 /*----------------------------------------------------------------------*/ 233 234 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 235 { 236 lcd_putc(c); 237 } 238 239 void lcd_putc(const char c) 240 { 241 if (!lcd_is_enabled) { 242 serial_putc(c); 243 244 return; 245 } 246 247 switch (c) { 248 case '\r': 249 console_curr_col = 0; 250 251 return; 252 case '\n': 253 console_newline(); 254 255 return; 256 case '\t': /* Tab (8 chars alignment) */ 257 console_curr_col += 8; 258 console_curr_col &= ~7; 259 260 if (console_curr_col >= console_cols) 261 console_newline(); 262 263 return; 264 case '\b': 265 console_back(); 266 267 return; 268 default: 269 lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH, 270 console_curr_row * VIDEO_FONT_HEIGHT, c); 271 if (++console_curr_col >= console_cols) 272 console_newline(); 273 } 274 } 275 276 /*----------------------------------------------------------------------*/ 277 278 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 279 { 280 lcd_puts(s); 281 } 282 283 void lcd_puts(const char *s) 284 { 285 if (!lcd_is_enabled) { 286 serial_puts(s); 287 288 return; 289 } 290 291 while (*s) 292 lcd_putc(*s++); 293 294 lcd_sync(); 295 } 296 297 /*----------------------------------------------------------------------*/ 298 299 void lcd_printf(const char *fmt, ...) 300 { 301 va_list args; 302 char buf[CONFIG_SYS_PBSIZE]; 303 304 va_start(args, fmt); 305 vsprintf(buf, fmt, args); 306 va_end(args); 307 308 lcd_puts(buf); 309 } 310 311 /************************************************************************/ 312 /* ** Low-Level Graphics Routines */ 313 /************************************************************************/ 314 315 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 316 { 317 uchar *dest; 318 ushort row; 319 int fg_color, bg_color; 320 321 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 322 y += BMP_LOGO_HEIGHT; 323 #endif 324 325 dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8); 326 327 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 328 uchar *s = str; 329 int i; 330 #if LCD_BPP == LCD_COLOR16 331 ushort *d = (ushort *)dest; 332 #elif LCD_BPP == LCD_COLOR32 333 u32 *d = (u32 *)dest; 334 #else 335 uchar *d = dest; 336 #endif 337 338 fg_color = lcd_getfgcolor(); 339 bg_color = lcd_getbgcolor(); 340 for (i = 0; i < count; ++i) { 341 uchar c, bits; 342 343 c = *s++; 344 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 345 346 for (c = 0; c < 8; ++c) { 347 *d++ = (bits & 0x80) ? fg_color : bg_color; 348 bits <<= 1; 349 } 350 } 351 } 352 } 353 354 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 355 { 356 lcd_drawchars(x, y, &c, 1); 357 } 358 359 /************************************************************************/ 360 /** Small utility to check that you got the colours right */ 361 /************************************************************************/ 362 #ifdef LCD_TEST_PATTERN 363 364 #define N_BLK_VERT 2 365 #define N_BLK_HOR 3 366 367 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 368 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 369 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 370 }; 371 372 static void test_pattern(void) 373 { 374 ushort v_max = panel_info.vl_row; 375 ushort h_max = panel_info.vl_col; 376 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 377 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 378 ushort v, h; 379 uchar *pix = (uchar *)lcd_base; 380 381 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 382 h_max, v_max, h_step, v_step); 383 384 /* WARNING: Code silently assumes 8bit/pixel */ 385 for (v = 0; v < v_max; ++v) { 386 uchar iy = v / v_step; 387 for (h = 0; h < h_max; ++h) { 388 uchar ix = N_BLK_HOR * iy + h / h_step; 389 *pix++ = test_colors[ix]; 390 } 391 } 392 } 393 #endif /* LCD_TEST_PATTERN */ 394 395 396 /************************************************************************/ 397 /* ** GENERIC Initialization Routines */ 398 /************************************************************************/ 399 /* 400 * With most lcd drivers the line length is set up 401 * by calculating it from panel_info parameters. Some 402 * drivers need to calculate the line length differently, 403 * so make the function weak to allow overriding it. 404 */ 405 __weak int lcd_get_size(int *line_length) 406 { 407 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 408 return *line_length * panel_info.vl_row; 409 } 410 411 int drv_lcd_init(void) 412 { 413 struct stdio_dev lcddev; 414 int rc; 415 416 lcd_base = map_sysmem(gd->fb_base, 0); 417 418 lcd_init(lcd_base); /* LCD initialization */ 419 420 /* Device initialization */ 421 memset(&lcddev, 0, sizeof(lcddev)); 422 423 strcpy(lcddev.name, "lcd"); 424 lcddev.ext = 0; /* No extensions */ 425 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 426 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 427 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 428 429 rc = stdio_register(&lcddev); 430 431 return (rc == 0) ? 1 : rc; 432 } 433 434 /*----------------------------------------------------------------------*/ 435 void lcd_clear(void) 436 { 437 short console_rows, console_cols; 438 int bg_color; 439 #if LCD_BPP == LCD_COLOR8 440 /* Setting the palette */ 441 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 442 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 443 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 444 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 445 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 446 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 447 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 448 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 449 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 450 #endif 451 452 #ifndef CONFIG_SYS_WHITE_ON_BLACK 453 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 454 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 455 bg_color = CONSOLE_COLOR_WHITE; 456 #else 457 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 458 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 459 bg_color = CONSOLE_COLOR_BLACK; 460 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 461 462 #ifdef LCD_TEST_PATTERN 463 test_pattern(); 464 #else 465 /* set framebuffer to background color */ 466 #if (LCD_BPP != LCD_COLOR32) 467 memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row); 468 #else 469 u32 *ppix = lcd_base; 470 u32 i; 471 for (i = 0; 472 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 473 i++) { 474 *ppix++ = bg_color; 475 } 476 #endif 477 #endif 478 /* Paint the logo and retrieve LCD base address */ 479 debug("[LCD] Drawing the logo...\n"); 480 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 481 console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT); 482 console_rows /= VIDEO_FONT_HEIGHT; 483 #else 484 console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT; 485 #endif 486 console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH; 487 lcd_init_console(lcd_logo(), console_rows, console_cols); 488 lcd_sync(); 489 } 490 491 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 492 char *const argv[]) 493 { 494 lcd_clear(); 495 return 0; 496 } 497 498 U_BOOT_CMD( 499 cls, 1, 1, do_lcd_clear, 500 "clear screen", 501 "" 502 ); 503 504 /*----------------------------------------------------------------------*/ 505 506 static int lcd_init(void *lcdbase) 507 { 508 /* Initialize the lcd controller */ 509 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 510 511 lcd_ctrl_init(lcdbase); 512 513 /* 514 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 515 * the 'lcdbase' argument and uses custom lcd base address 516 * by setting up gd->fb_base. Check for this condition and fixup 517 * 'lcd_base' address. 518 */ 519 if (map_to_sysmem(lcdbase) != gd->fb_base) 520 lcd_base = map_sysmem(gd->fb_base, 0); 521 522 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 523 524 lcd_get_size(&lcd_line_length); 525 lcd_is_enabled = 1; 526 lcd_clear(); 527 lcd_enable(); 528 529 /* Initialize the console */ 530 lcd_set_col(0); 531 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 532 lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT); 533 #else 534 lcd_set_row(1); /* leave 1 blank line below logo */ 535 #endif 536 537 return 0; 538 } 539 540 541 /************************************************************************/ 542 /* ** ROM capable initialization part - needed to reserve FB memory */ 543 /************************************************************************/ 544 /* 545 * This is called early in the system initialization to grab memory 546 * for the LCD controller. 547 * Returns new address for monitor, after reserving LCD buffer memory 548 * 549 * Note that this is running from ROM, so no write access to global data. 550 */ 551 ulong lcd_setmem(ulong addr) 552 { 553 ulong size; 554 int line_length; 555 556 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 557 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 558 559 size = lcd_get_size(&line_length); 560 561 /* Round up to nearest full page, or MMU section if defined */ 562 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 563 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 564 565 /* Allocate pages for the frame buffer. */ 566 addr -= size; 567 568 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 569 size >> 10, addr); 570 571 return addr; 572 } 573 574 /*----------------------------------------------------------------------*/ 575 576 static void lcd_setfgcolor(int color) 577 { 578 lcd_color_fg = color; 579 } 580 581 int lcd_getfgcolor(void) 582 { 583 return lcd_color_fg; 584 } 585 586 /*----------------------------------------------------------------------*/ 587 588 static void lcd_setbgcolor(int color) 589 { 590 lcd_color_bg = color; 591 } 592 593 int lcd_getbgcolor(void) 594 { 595 return lcd_color_bg; 596 } 597 598 /************************************************************************/ 599 /* ** Chipset depending Bitmap / Logo stuff... */ 600 /************************************************************************/ 601 static inline ushort *configuration_get_cmap(void) 602 { 603 #if defined CONFIG_CPU_PXA 604 struct pxafb_info *fbi = &panel_info.pxa; 605 return (ushort *)fbi->palette; 606 #elif defined(CONFIG_MPC823) 607 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 608 cpm8xx_t *cp = &(immr->im_cpm); 609 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 610 #elif defined(CONFIG_ATMEL_LCD) 611 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 612 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 613 return panel_info.cmap; 614 #elif defined(CONFIG_LCD_LOGO) 615 return bmp_logo_palette; 616 #else 617 return NULL; 618 #endif 619 } 620 621 #ifdef CONFIG_LCD_LOGO 622 void bitmap_plot(int x, int y) 623 { 624 #ifdef CONFIG_ATMEL_LCD 625 uint *cmap = (uint *)bmp_logo_palette; 626 #else 627 ushort *cmap = (ushort *)bmp_logo_palette; 628 #endif 629 ushort i, j; 630 uchar *bmap; 631 uchar *fb; 632 ushort *fb16; 633 #if defined(CONFIG_MPC823) 634 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 635 cpm8xx_t *cp = &(immr->im_cpm); 636 #endif 637 unsigned bpix = NBITS(panel_info.vl_bpix); 638 639 debug("Logo: width %d height %d colors %d cmap %d\n", 640 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 641 ARRAY_SIZE(bmp_logo_palette)); 642 643 bmap = &bmp_logo_bitmap[0]; 644 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 645 646 if (bpix < 12) { 647 /* Leave room for default color map 648 * default case: generic system with no cmap (most likely 16bpp) 649 * cmap was set to the source palette, so no change is done. 650 * This avoids even more ifdefs in the next stanza 651 */ 652 #if defined(CONFIG_MPC823) 653 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 654 #elif defined(CONFIG_ATMEL_LCD) 655 cmap = (uint *)configuration_get_cmap(); 656 #else 657 cmap = configuration_get_cmap(); 658 #endif 659 660 WATCHDOG_RESET(); 661 662 /* Set color map */ 663 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 664 ushort colreg = bmp_logo_palette[i]; 665 #ifdef CONFIG_ATMEL_LCD 666 uint lut_entry; 667 #ifdef CONFIG_ATMEL_LCD_BGR555 668 lut_entry = ((colreg & 0x000F) << 11) | 669 ((colreg & 0x00F0) << 2) | 670 ((colreg & 0x0F00) >> 7); 671 #else /* CONFIG_ATMEL_LCD_RGB565 */ 672 lut_entry = ((colreg & 0x000F) << 1) | 673 ((colreg & 0x00F0) << 3) | 674 ((colreg & 0x0F00) << 4); 675 #endif 676 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 677 cmap++; 678 #else /* !CONFIG_ATMEL_LCD */ 679 *cmap++ = colreg; 680 #endif /* CONFIG_ATMEL_LCD */ 681 } 682 683 WATCHDOG_RESET(); 684 685 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 686 memcpy(fb, bmap, BMP_LOGO_WIDTH); 687 bmap += BMP_LOGO_WIDTH; 688 fb += panel_info.vl_col; 689 } 690 } 691 else { /* true color mode */ 692 u16 col16; 693 fb16 = (ushort *)fb; 694 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 695 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 696 col16 = bmp_logo_palette[(bmap[j]-16)]; 697 fb16[j] = 698 ((col16 & 0x000F) << 1) | 699 ((col16 & 0x00F0) << 3) | 700 ((col16 & 0x0F00) << 4); 701 } 702 bmap += BMP_LOGO_WIDTH; 703 fb16 += panel_info.vl_col; 704 } 705 } 706 707 WATCHDOG_RESET(); 708 lcd_sync(); 709 } 710 #else 711 static inline void bitmap_plot(int x, int y) {} 712 #endif /* CONFIG_LCD_LOGO */ 713 714 /*----------------------------------------------------------------------*/ 715 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 716 /* 717 * Display the BMP file located at address bmp_image. 718 * Only uncompressed. 719 */ 720 721 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 722 #define BMP_ALIGN_CENTER 0x7FFF 723 724 static void splash_align_axis(int *axis, unsigned long panel_size, 725 unsigned long picture_size) 726 { 727 unsigned long panel_picture_delta = panel_size - picture_size; 728 unsigned long axis_alignment; 729 730 if (*axis == BMP_ALIGN_CENTER) 731 axis_alignment = panel_picture_delta / 2; 732 else if (*axis < 0) 733 axis_alignment = panel_picture_delta + *axis + 1; 734 else 735 return; 736 737 *axis = max(0, (int)axis_alignment); 738 } 739 #endif 740 741 742 #ifdef CONFIG_LCD_BMP_RLE8 743 744 #define BMP_RLE8_ESCAPE 0 745 #define BMP_RLE8_EOL 0 746 #define BMP_RLE8_EOBMP 1 747 #define BMP_RLE8_DELTA 2 748 749 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 750 int cnt) 751 { 752 while (cnt > 0) { 753 *(*fbp)++ = cmap[*bmap++]; 754 cnt--; 755 } 756 } 757 758 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 759 { 760 ushort *fb = *fbp; 761 int cnt_8copy = cnt >> 3; 762 763 cnt -= cnt_8copy << 3; 764 while (cnt_8copy > 0) { 765 *fb++ = c; 766 *fb++ = c; 767 *fb++ = c; 768 *fb++ = c; 769 *fb++ = c; 770 *fb++ = c; 771 *fb++ = c; 772 *fb++ = c; 773 cnt_8copy--; 774 } 775 while (cnt > 0) { 776 *fb++ = c; 777 cnt--; 778 } 779 *fbp = fb; 780 } 781 782 /* 783 * Do not call this function directly, must be called from lcd_display_bitmap. 784 */ 785 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 786 int x_off, int y_off) 787 { 788 uchar *bmap; 789 ulong width, height; 790 ulong cnt, runlen; 791 int x, y; 792 int decode = 1; 793 794 width = get_unaligned_le32(&bmp->header.width); 795 height = get_unaligned_le32(&bmp->header.height); 796 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 797 798 x = 0; 799 y = height - 1; 800 801 while (decode) { 802 if (bmap[0] == BMP_RLE8_ESCAPE) { 803 switch (bmap[1]) { 804 case BMP_RLE8_EOL: 805 /* end of line */ 806 bmap += 2; 807 x = 0; 808 y--; 809 /* 16bpix, 2-byte per pixel, width should *2 */ 810 fb -= (width * 2 + lcd_line_length); 811 break; 812 case BMP_RLE8_EOBMP: 813 /* end of bitmap */ 814 decode = 0; 815 break; 816 case BMP_RLE8_DELTA: 817 /* delta run */ 818 x += bmap[2]; 819 y -= bmap[3]; 820 /* 16bpix, 2-byte per pixel, x should *2 */ 821 fb = (uchar *) (lcd_base + (y + y_off - 1) 822 * lcd_line_length + (x + x_off) * 2); 823 bmap += 4; 824 break; 825 default: 826 /* unencoded run */ 827 runlen = bmap[1]; 828 bmap += 2; 829 if (y < height) { 830 if (x < width) { 831 if (x + runlen > width) 832 cnt = width - x; 833 else 834 cnt = runlen; 835 draw_unencoded_bitmap( 836 (ushort **)&fb, 837 bmap, cmap, cnt); 838 } 839 x += runlen; 840 } 841 bmap += runlen; 842 if (runlen & 1) 843 bmap++; 844 } 845 } else { 846 /* encoded run */ 847 if (y < height) { 848 runlen = bmap[0]; 849 if (x < width) { 850 /* aggregate the same code */ 851 while (bmap[0] == 0xff && 852 bmap[2] != BMP_RLE8_ESCAPE && 853 bmap[1] == bmap[3]) { 854 runlen += bmap[2]; 855 bmap += 2; 856 } 857 if (x + runlen > width) 858 cnt = width - x; 859 else 860 cnt = runlen; 861 draw_encoded_bitmap((ushort **)&fb, 862 cmap[bmap[1]], cnt); 863 } 864 x += runlen; 865 } 866 bmap += 2; 867 } 868 } 869 } 870 #endif 871 872 #if defined(CONFIG_MPC823) 873 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 874 #else 875 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 876 #endif 877 878 #if defined(CONFIG_BMP_16BPP) 879 #if defined(CONFIG_ATMEL_LCD_BGR555) 880 static inline void fb_put_word(uchar **fb, uchar **from) 881 { 882 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 883 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 884 *from += 2; 885 } 886 #else 887 static inline void fb_put_word(uchar **fb, uchar **from) 888 { 889 *(*fb)++ = *(*from)++; 890 *(*fb)++ = *(*from)++; 891 } 892 #endif 893 #endif /* CONFIG_BMP_16BPP */ 894 895 int lcd_display_bitmap(ulong bmp_image, int x, int y) 896 { 897 ushort *cmap = NULL; 898 ushort *cmap_base = NULL; 899 ushort i, j; 900 uchar *fb; 901 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 902 uchar *bmap; 903 ushort padded_width; 904 unsigned long width, height, byte_width; 905 unsigned long pwidth = panel_info.vl_col; 906 unsigned colors, bpix, bmp_bpix; 907 908 if (!bmp || !(bmp->header.signature[0] == 'B' && 909 bmp->header.signature[1] == 'M')) { 910 printf("Error: no valid bmp image at %lx\n", bmp_image); 911 912 return 1; 913 } 914 915 width = get_unaligned_le32(&bmp->header.width); 916 height = get_unaligned_le32(&bmp->header.height); 917 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 918 919 colors = 1 << bmp_bpix; 920 921 bpix = NBITS(panel_info.vl_bpix); 922 923 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 924 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 925 bpix, bmp_bpix); 926 927 return 1; 928 } 929 930 /* 931 * We support displaying 8bpp BMPs on 16bpp LCDs 932 * and displaying 24bpp BMPs on 32bpp LCDs 933 * */ 934 if (bpix != bmp_bpix && 935 !(bmp_bpix == 8 && bpix == 16) && 936 !(bmp_bpix == 24 && bpix == 32)) { 937 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 938 bpix, get_unaligned_le16(&bmp->header.bit_count)); 939 return 1; 940 } 941 942 debug("Display-bmp: %d x %d with %d colors\n", 943 (int)width, (int)height, (int)colors); 944 945 if (bmp_bpix == 8) { 946 cmap = configuration_get_cmap(); 947 cmap_base = cmap; 948 949 /* Set color map */ 950 for (i = 0; i < colors; ++i) { 951 bmp_color_table_entry_t cte = bmp->color_table[i]; 952 #if !defined(CONFIG_ATMEL_LCD) 953 ushort colreg = 954 ( ((cte.red) << 8) & 0xf800) | 955 ( ((cte.green) << 3) & 0x07e0) | 956 ( ((cte.blue) >> 3) & 0x001f) ; 957 *cmap = colreg; 958 #if defined(CONFIG_MPC823) 959 cmap--; 960 #else 961 cmap++; 962 #endif 963 #else /* CONFIG_ATMEL_LCD */ 964 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 965 #endif 966 } 967 } 968 969 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 970 971 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 972 splash_align_axis(&x, pwidth, width); 973 splash_align_axis(&y, panel_info.vl_row, height); 974 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 975 976 if ((x + width) > pwidth) 977 width = pwidth - x; 978 if ((y + height) > panel_info.vl_row) 979 height = panel_info.vl_row - y; 980 981 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 982 fb = (uchar *)(lcd_base + 983 (y + height - 1) * lcd_line_length + x * bpix / 8); 984 985 switch (bmp_bpix) { 986 case 1: /* pass through */ 987 case 8: { 988 #ifdef CONFIG_LCD_BMP_RLE8 989 u32 compression = get_unaligned_le32(&bmp->header.compression); 990 if (compression == BMP_BI_RLE8) { 991 if (bpix != 16) { 992 /* TODO implement render code for bpix != 16 */ 993 printf("Error: only support 16 bpix"); 994 return 1; 995 } 996 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 997 break; 998 } 999 #endif 1000 1001 if (bpix != 16) 1002 byte_width = width; 1003 else 1004 byte_width = width * 2; 1005 1006 for (i = 0; i < height; ++i) { 1007 WATCHDOG_RESET(); 1008 for (j = 0; j < width; j++) { 1009 if (bpix != 16) { 1010 FB_PUT_BYTE(fb, bmap); 1011 } else { 1012 *(uint16_t *)fb = cmap_base[*(bmap++)]; 1013 fb += sizeof(uint16_t) / sizeof(*fb); 1014 } 1015 } 1016 bmap += (padded_width - width); 1017 fb -= byte_width + lcd_line_length; 1018 } 1019 break; 1020 } 1021 #if defined(CONFIG_BMP_16BPP) 1022 case 16: 1023 for (i = 0; i < height; ++i) { 1024 WATCHDOG_RESET(); 1025 for (j = 0; j < width; j++) 1026 fb_put_word(&fb, &bmap); 1027 1028 bmap += (padded_width - width) * 2; 1029 fb -= width * 2 + lcd_line_length; 1030 } 1031 break; 1032 #endif /* CONFIG_BMP_16BPP */ 1033 #if defined(CONFIG_BMP_24BMP) 1034 case 24: 1035 for (i = 0; i < height; ++i) { 1036 for (j = 0; j < width; j++) { 1037 *(fb++) = *(bmap++); 1038 *(fb++) = *(bmap++); 1039 *(fb++) = *(bmap++); 1040 *(fb++) = 0; 1041 } 1042 fb -= lcd_line_length + width * (bpix / 8); 1043 } 1044 break; 1045 #endif /* CONFIG_BMP_24BMP */ 1046 #if defined(CONFIG_BMP_32BPP) 1047 case 32: 1048 for (i = 0; i < height; ++i) { 1049 for (j = 0; j < width; j++) { 1050 *(fb++) = *(bmap++); 1051 *(fb++) = *(bmap++); 1052 *(fb++) = *(bmap++); 1053 *(fb++) = *(bmap++); 1054 } 1055 fb -= lcd_line_length + width * (bpix / 8); 1056 } 1057 break; 1058 #endif /* CONFIG_BMP_32BPP */ 1059 default: 1060 break; 1061 }; 1062 1063 lcd_sync(); 1064 return 0; 1065 } 1066 #endif 1067 1068 static void *lcd_logo(void) 1069 { 1070 #ifdef CONFIG_SPLASH_SCREEN 1071 char *s; 1072 ulong addr; 1073 static int do_splash = 1; 1074 1075 if (do_splash && (s = getenv("splashimage")) != NULL) { 1076 int x = 0, y = 0; 1077 do_splash = 0; 1078 1079 if (splash_screen_prepare()) 1080 return (void *)lcd_base; 1081 1082 addr = simple_strtoul (s, NULL, 16); 1083 1084 splash_get_pos(&x, &y); 1085 1086 if (bmp_display(addr, x, y) == 0) 1087 return (void *)lcd_base; 1088 } 1089 #endif /* CONFIG_SPLASH_SCREEN */ 1090 1091 bitmap_plot(0, 0); 1092 1093 #ifdef CONFIG_LCD_INFO 1094 lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH); 1095 lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT); 1096 lcd_show_board_info(); 1097 #endif /* CONFIG_LCD_INFO */ 1098 1099 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1100 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1101 #else 1102 return (void *)lcd_base; 1103 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1104 } 1105 1106 #ifdef CONFIG_SPLASHIMAGE_GUARD 1107 static int on_splashimage(const char *name, const char *value, enum env_op op, 1108 int flags) 1109 { 1110 ulong addr; 1111 int aligned; 1112 1113 if (op == env_op_delete) 1114 return 0; 1115 1116 addr = simple_strtoul(value, NULL, 16); 1117 /* See README.displaying-bmps */ 1118 aligned = (addr % 4 == 2); 1119 if (!aligned) { 1120 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1121 return -1; 1122 } 1123 1124 return 0; 1125 } 1126 1127 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1128 #endif 1129 1130 void lcd_position_cursor(unsigned col, unsigned row) 1131 { 1132 console_curr_col = min_t(short, col, console_cols - 1); 1133 console_curr_row = min_t(short, row, console_rows - 1); 1134 } 1135 1136 int lcd_get_pixel_width(void) 1137 { 1138 return panel_info.vl_col; 1139 } 1140 1141 int lcd_get_pixel_height(void) 1142 { 1143 return panel_info.vl_row; 1144 } 1145 1146 int lcd_get_screen_rows(void) 1147 { 1148 return console_rows; 1149 } 1150 1151 int lcd_get_screen_columns(void) 1152 { 1153 return console_cols; 1154 } 1155 1156 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1157 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1158 { 1159 #if LCD_BPP == LCD_COLOR16 1160 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 1161 panel_info.vl_col, panel_info.vl_row, 1162 panel_info.vl_col * 2, "r5g6b5"); 1163 #else 1164 return -1; 1165 #endif 1166 } 1167 1168 int lcd_dt_simplefb_add_node(void *blob) 1169 { 1170 static const char compat[] = "simple-framebuffer"; 1171 static const char disabled[] = "disabled"; 1172 int off, ret; 1173 1174 off = fdt_add_subnode(blob, 0, "framebuffer"); 1175 if (off < 0) 1176 return -1; 1177 1178 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1179 if (ret < 0) 1180 return -1; 1181 1182 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1183 if (ret < 0) 1184 return -1; 1185 1186 return lcd_dt_simplefb_configure_node(blob, off); 1187 } 1188 1189 int lcd_dt_simplefb_enable_existing_node(void *blob) 1190 { 1191 int off; 1192 1193 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1194 if (off < 0) 1195 return -1; 1196 1197 return lcd_dt_simplefb_configure_node(blob, off); 1198 } 1199 #endif 1200