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_COLOR8) || (LCD_BPP == LCD_COLOR16) || \ 101 (LCD_BPP == LCD_COLOR32) 102 # define COLOR_MASK(c) (c) 103 #else 104 # error Unsupported LCD BPP. 105 #endif 106 107 DECLARE_GLOBAL_DATA_PTR; 108 109 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count); 110 static inline void lcd_putc_xy(ushort x, ushort y, uchar c); 111 112 static int lcd_init(void *lcdbase); 113 114 static void *lcd_logo(void); 115 116 static void lcd_setfgcolor(int color); 117 static void lcd_setbgcolor(int color); 118 119 static int lcd_color_fg; 120 static int lcd_color_bg; 121 int lcd_line_length; 122 123 char lcd_is_enabled = 0; 124 125 static short console_curr_col; 126 static short console_curr_row; 127 128 static void *lcd_console_address; 129 static void *lcd_base; /* Start of framebuffer memory */ 130 131 static char lcd_flush_dcache; /* 1 to flush dcache after each lcd update */ 132 133 /************************************************************************/ 134 135 /* Flush LCD activity to the caches */ 136 void lcd_sync(void) 137 { 138 /* 139 * flush_dcache_range() is declared in common.h but it seems that some 140 * architectures do not actually implement it. Is there a way to find 141 * out whether it exists? For now, ARM is safe. 142 */ 143 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF) 144 int line_length; 145 146 if (lcd_flush_dcache) 147 flush_dcache_range((u32)lcd_base, 148 (u32)(lcd_base + lcd_get_size(&line_length))); 149 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL) 150 static ulong last_sync; 151 152 if (get_timer(last_sync) > 10) { 153 sandbox_sdl_sync(lcd_base); 154 last_sync = get_timer(0); 155 } 156 #endif 157 } 158 159 void lcd_set_flush_dcache(int flush) 160 { 161 lcd_flush_dcache = (flush != 0); 162 } 163 164 /*----------------------------------------------------------------------*/ 165 166 static void console_scrollup(void) 167 { 168 const int rows = CONFIG_CONSOLE_SCROLL_LINES; 169 170 /* Copy up rows ignoring those that will be overwritten */ 171 memcpy(CONSOLE_ROW_FIRST, 172 lcd_console_address + CONSOLE_ROW_SIZE * rows, 173 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows); 174 175 /* Clear the last rows */ 176 #if (LCD_BPP != LCD_COLOR32) 177 memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows, 178 COLOR_MASK(lcd_color_bg), 179 CONSOLE_ROW_SIZE * rows); 180 #else 181 u32 *ppix = lcd_console_address + 182 CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows; 183 u32 i; 184 for (i = 0; 185 i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix); 186 i++) { 187 *ppix++ = COLOR_MASK(lcd_color_bg); 188 } 189 #endif 190 lcd_sync(); 191 console_curr_row -= rows; 192 } 193 194 /*----------------------------------------------------------------------*/ 195 196 static inline void console_back(void) 197 { 198 if (--console_curr_col < 0) { 199 console_curr_col = CONSOLE_COLS-1; 200 if (--console_curr_row < 0) 201 console_curr_row = 0; 202 } 203 204 lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH, 205 console_curr_row * VIDEO_FONT_HEIGHT, ' '); 206 } 207 208 /*----------------------------------------------------------------------*/ 209 210 static inline void console_newline(void) 211 { 212 console_curr_col = 0; 213 214 /* Check if we need to scroll the terminal */ 215 if (++console_curr_row >= CONSOLE_ROWS) 216 console_scrollup(); 217 else 218 lcd_sync(); 219 } 220 221 /*----------------------------------------------------------------------*/ 222 223 static void lcd_stub_putc(struct stdio_dev *dev, const char c) 224 { 225 lcd_putc(c); 226 } 227 228 void lcd_putc(const char c) 229 { 230 if (!lcd_is_enabled) { 231 serial_putc(c); 232 233 return; 234 } 235 236 switch (c) { 237 case '\r': 238 console_curr_col = 0; 239 240 return; 241 case '\n': 242 console_newline(); 243 244 return; 245 case '\t': /* Tab (8 chars alignment) */ 246 console_curr_col += 8; 247 console_curr_col &= ~7; 248 249 if (console_curr_col >= CONSOLE_COLS) 250 console_newline(); 251 252 return; 253 case '\b': 254 console_back(); 255 256 return; 257 default: 258 lcd_putc_xy(console_curr_col * VIDEO_FONT_WIDTH, 259 console_curr_row * VIDEO_FONT_HEIGHT, c); 260 if (++console_curr_col >= CONSOLE_COLS) 261 console_newline(); 262 } 263 } 264 265 /*----------------------------------------------------------------------*/ 266 267 static void lcd_stub_puts(struct stdio_dev *dev, const char *s) 268 { 269 lcd_puts(s); 270 } 271 272 void lcd_puts(const char *s) 273 { 274 if (!lcd_is_enabled) { 275 serial_puts(s); 276 277 return; 278 } 279 280 while (*s) 281 lcd_putc(*s++); 282 283 lcd_sync(); 284 } 285 286 /*----------------------------------------------------------------------*/ 287 288 void lcd_printf(const char *fmt, ...) 289 { 290 va_list args; 291 char buf[CONFIG_SYS_PBSIZE]; 292 293 va_start(args, fmt); 294 vsprintf(buf, fmt, args); 295 va_end(args); 296 297 lcd_puts(buf); 298 } 299 300 /************************************************************************/ 301 /* ** Low-Level Graphics Routines */ 302 /************************************************************************/ 303 304 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count) 305 { 306 uchar *dest; 307 ushort row; 308 309 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 310 y += BMP_LOGO_HEIGHT; 311 #endif 312 313 dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8); 314 315 for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) { 316 uchar *s = str; 317 int i; 318 #if LCD_BPP == LCD_COLOR16 319 ushort *d = (ushort *)dest; 320 #elif LCD_BPP == LCD_COLOR32 321 u32 *d = (u32 *)dest; 322 #else 323 uchar *d = dest; 324 #endif 325 326 for (i = 0; i < count; ++i) { 327 uchar c, bits; 328 329 c = *s++; 330 bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row]; 331 332 for (c = 0; c < 8; ++c) { 333 *d++ = (bits & 0x80) ? 334 lcd_color_fg : lcd_color_bg; 335 bits <<= 1; 336 } 337 } 338 } 339 } 340 341 static inline void lcd_putc_xy(ushort x, ushort y, uchar c) 342 { 343 lcd_drawchars(x, y, &c, 1); 344 } 345 346 /************************************************************************/ 347 /** Small utility to check that you got the colours right */ 348 /************************************************************************/ 349 #ifdef LCD_TEST_PATTERN 350 351 #define N_BLK_VERT 2 352 #define N_BLK_HOR 3 353 354 static int test_colors[N_BLK_HOR * N_BLK_VERT] = { 355 CONSOLE_COLOR_RED, CONSOLE_COLOR_GREEN, CONSOLE_COLOR_YELLOW, 356 CONSOLE_COLOR_BLUE, CONSOLE_COLOR_MAGENTA, CONSOLE_COLOR_CYAN, 357 }; 358 359 static void test_pattern(void) 360 { 361 ushort v_max = panel_info.vl_row; 362 ushort h_max = panel_info.vl_col; 363 ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT; 364 ushort h_step = (h_max + N_BLK_HOR - 1) / N_BLK_HOR; 365 ushort v, h; 366 uchar *pix = (uchar *)lcd_base; 367 368 printf("[LCD] Test Pattern: %d x %d [%d x %d]\n", 369 h_max, v_max, h_step, v_step); 370 371 /* WARNING: Code silently assumes 8bit/pixel */ 372 for (v = 0; v < v_max; ++v) { 373 uchar iy = v / v_step; 374 for (h = 0; h < h_max; ++h) { 375 uchar ix = N_BLK_HOR * iy + h / h_step; 376 *pix++ = test_colors[ix]; 377 } 378 } 379 } 380 #endif /* LCD_TEST_PATTERN */ 381 382 383 /************************************************************************/ 384 /* ** GENERIC Initialization Routines */ 385 /************************************************************************/ 386 /* 387 * With most lcd drivers the line length is set up 388 * by calculating it from panel_info parameters. Some 389 * drivers need to calculate the line length differently, 390 * so make the function weak to allow overriding it. 391 */ 392 __weak int lcd_get_size(int *line_length) 393 { 394 *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8; 395 return *line_length * panel_info.vl_row; 396 } 397 398 int drv_lcd_init(void) 399 { 400 struct stdio_dev lcddev; 401 int rc; 402 403 lcd_base = map_sysmem(gd->fb_base, 0); 404 405 lcd_init(lcd_base); /* LCD initialization */ 406 407 /* Device initialization */ 408 memset(&lcddev, 0, sizeof(lcddev)); 409 410 strcpy(lcddev.name, "lcd"); 411 lcddev.ext = 0; /* No extensions */ 412 lcddev.flags = DEV_FLAGS_OUTPUT; /* Output only */ 413 lcddev.putc = lcd_stub_putc; /* 'putc' function */ 414 lcddev.puts = lcd_stub_puts; /* 'puts' function */ 415 416 rc = stdio_register(&lcddev); 417 418 return (rc == 0) ? 1 : rc; 419 } 420 421 /*----------------------------------------------------------------------*/ 422 void lcd_clear(void) 423 { 424 #if LCD_BPP == LCD_COLOR8 425 /* Setting the palette */ 426 lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0); 427 lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0); 428 lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0); 429 lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0); 430 lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF); 431 lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF); 432 lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF); 433 lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA); 434 lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF); 435 #endif 436 437 #ifndef CONFIG_SYS_WHITE_ON_BLACK 438 lcd_setfgcolor(CONSOLE_COLOR_BLACK); 439 lcd_setbgcolor(CONSOLE_COLOR_WHITE); 440 #else 441 lcd_setfgcolor(CONSOLE_COLOR_WHITE); 442 lcd_setbgcolor(CONSOLE_COLOR_BLACK); 443 #endif /* CONFIG_SYS_WHITE_ON_BLACK */ 444 445 #ifdef LCD_TEST_PATTERN 446 test_pattern(); 447 #else 448 /* set framebuffer to background color */ 449 #if (LCD_BPP != LCD_COLOR32) 450 memset((char *)lcd_base, 451 COLOR_MASK(lcd_color_bg), 452 lcd_line_length * panel_info.vl_row); 453 #else 454 u32 *ppix = lcd_base; 455 u32 i; 456 for (i = 0; 457 i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix); 458 i++) { 459 *ppix++ = COLOR_MASK(lcd_color_bg); 460 } 461 #endif 462 #endif 463 /* Paint the logo and retrieve LCD base address */ 464 debug("[LCD] Drawing the logo...\n"); 465 lcd_console_address = lcd_logo(); 466 467 console_curr_col = 0; 468 console_curr_row = 0; 469 lcd_sync(); 470 } 471 472 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, 473 char *const argv[]) 474 { 475 lcd_clear(); 476 return 0; 477 } 478 479 U_BOOT_CMD( 480 cls, 1, 1, do_lcd_clear, 481 "clear screen", 482 "" 483 ); 484 485 /*----------------------------------------------------------------------*/ 486 487 static int lcd_init(void *lcdbase) 488 { 489 /* Initialize the lcd controller */ 490 debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase); 491 492 lcd_ctrl_init(lcdbase); 493 494 /* 495 * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores 496 * the 'lcdbase' argument and uses custom lcd base address 497 * by setting up gd->fb_base. Check for this condition and fixup 498 * 'lcd_base' address. 499 */ 500 if (map_to_sysmem(lcdbase) != gd->fb_base) 501 lcd_base = map_sysmem(gd->fb_base, 0); 502 503 debug("[LCD] Using LCD frambuffer at %p\n", lcd_base); 504 505 lcd_get_size(&lcd_line_length); 506 lcd_is_enabled = 1; 507 lcd_clear(); 508 lcd_enable(); 509 510 /* Initialize the console */ 511 console_curr_col = 0; 512 #ifdef CONFIG_LCD_INFO_BELOW_LOGO 513 console_curr_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT; 514 #else 515 console_curr_row = 1; /* leave 1 blank line below logo */ 516 #endif 517 518 return 0; 519 } 520 521 522 /************************************************************************/ 523 /* ** ROM capable initialization part - needed to reserve FB memory */ 524 /************************************************************************/ 525 /* 526 * This is called early in the system initialization to grab memory 527 * for the LCD controller. 528 * Returns new address for monitor, after reserving LCD buffer memory 529 * 530 * Note that this is running from ROM, so no write access to global data. 531 */ 532 ulong lcd_setmem(ulong addr) 533 { 534 ulong size; 535 int line_length; 536 537 debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col, 538 panel_info.vl_row, NBITS(panel_info.vl_bpix)); 539 540 size = lcd_get_size(&line_length); 541 542 /* Round up to nearest full page, or MMU section if defined */ 543 size = ALIGN(size, CONFIG_LCD_ALIGNMENT); 544 addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT); 545 546 /* Allocate pages for the frame buffer. */ 547 addr -= size; 548 549 debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", 550 size >> 10, addr); 551 552 return addr; 553 } 554 555 /*----------------------------------------------------------------------*/ 556 557 static void lcd_setfgcolor(int color) 558 { 559 lcd_color_fg = color; 560 } 561 562 /*----------------------------------------------------------------------*/ 563 564 static void lcd_setbgcolor(int color) 565 { 566 lcd_color_bg = color; 567 } 568 569 /************************************************************************/ 570 /* ** Chipset depending Bitmap / Logo stuff... */ 571 /************************************************************************/ 572 static inline ushort *configuration_get_cmap(void) 573 { 574 #if defined CONFIG_CPU_PXA 575 struct pxafb_info *fbi = &panel_info.pxa; 576 return (ushort *)fbi->palette; 577 #elif defined(CONFIG_MPC823) 578 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 579 cpm8xx_t *cp = &(immr->im_cpm); 580 return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]); 581 #elif defined(CONFIG_ATMEL_LCD) 582 return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0)); 583 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB) 584 return panel_info.cmap; 585 #elif defined(CONFIG_LCD_LOGO) 586 return bmp_logo_palette; 587 #else 588 return NULL; 589 #endif 590 } 591 592 #ifdef CONFIG_LCD_LOGO 593 void bitmap_plot(int x, int y) 594 { 595 #ifdef CONFIG_ATMEL_LCD 596 uint *cmap = (uint *)bmp_logo_palette; 597 #else 598 ushort *cmap = (ushort *)bmp_logo_palette; 599 #endif 600 ushort i, j; 601 uchar *bmap; 602 uchar *fb; 603 ushort *fb16; 604 #if defined(CONFIG_MPC823) 605 immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; 606 cpm8xx_t *cp = &(immr->im_cpm); 607 #endif 608 unsigned bpix = NBITS(panel_info.vl_bpix); 609 610 debug("Logo: width %d height %d colors %d cmap %d\n", 611 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS, 612 ARRAY_SIZE(bmp_logo_palette)); 613 614 bmap = &bmp_logo_bitmap[0]; 615 fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8); 616 617 if (bpix < 12) { 618 /* Leave room for default color map 619 * default case: generic system with no cmap (most likely 16bpp) 620 * cmap was set to the source palette, so no change is done. 621 * This avoids even more ifdefs in the next stanza 622 */ 623 #if defined(CONFIG_MPC823) 624 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]); 625 #elif defined(CONFIG_ATMEL_LCD) 626 cmap = (uint *)configuration_get_cmap(); 627 #else 628 cmap = configuration_get_cmap(); 629 #endif 630 631 WATCHDOG_RESET(); 632 633 /* Set color map */ 634 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) { 635 ushort colreg = bmp_logo_palette[i]; 636 #ifdef CONFIG_ATMEL_LCD 637 uint lut_entry; 638 #ifdef CONFIG_ATMEL_LCD_BGR555 639 lut_entry = ((colreg & 0x000F) << 11) | 640 ((colreg & 0x00F0) << 2) | 641 ((colreg & 0x0F00) >> 7); 642 #else /* CONFIG_ATMEL_LCD_RGB565 */ 643 lut_entry = ((colreg & 0x000F) << 1) | 644 ((colreg & 0x00F0) << 3) | 645 ((colreg & 0x0F00) << 4); 646 #endif 647 *(cmap + BMP_LOGO_OFFSET) = lut_entry; 648 cmap++; 649 #else /* !CONFIG_ATMEL_LCD */ 650 *cmap++ = colreg; 651 #endif /* CONFIG_ATMEL_LCD */ 652 } 653 654 WATCHDOG_RESET(); 655 656 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 657 memcpy(fb, bmap, BMP_LOGO_WIDTH); 658 bmap += BMP_LOGO_WIDTH; 659 fb += panel_info.vl_col; 660 } 661 } 662 else { /* true color mode */ 663 u16 col16; 664 fb16 = (ushort *)fb; 665 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) { 666 for (j = 0; j < BMP_LOGO_WIDTH; j++) { 667 col16 = bmp_logo_palette[(bmap[j]-16)]; 668 fb16[j] = 669 ((col16 & 0x000F) << 1) | 670 ((col16 & 0x00F0) << 3) | 671 ((col16 & 0x0F00) << 4); 672 } 673 bmap += BMP_LOGO_WIDTH; 674 fb16 += panel_info.vl_col; 675 } 676 } 677 678 WATCHDOG_RESET(); 679 lcd_sync(); 680 } 681 #else 682 static inline void bitmap_plot(int x, int y) {} 683 #endif /* CONFIG_LCD_LOGO */ 684 685 /*----------------------------------------------------------------------*/ 686 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN) 687 /* 688 * Display the BMP file located at address bmp_image. 689 * Only uncompressed. 690 */ 691 692 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 693 #define BMP_ALIGN_CENTER 0x7FFF 694 695 static void splash_align_axis(int *axis, unsigned long panel_size, 696 unsigned long picture_size) 697 { 698 unsigned long panel_picture_delta = panel_size - picture_size; 699 unsigned long axis_alignment; 700 701 if (*axis == BMP_ALIGN_CENTER) 702 axis_alignment = panel_picture_delta / 2; 703 else if (*axis < 0) 704 axis_alignment = panel_picture_delta + *axis + 1; 705 else 706 return; 707 708 *axis = max(0, (int)axis_alignment); 709 } 710 #endif 711 712 713 #ifdef CONFIG_LCD_BMP_RLE8 714 715 #define BMP_RLE8_ESCAPE 0 716 #define BMP_RLE8_EOL 0 717 #define BMP_RLE8_EOBMP 1 718 #define BMP_RLE8_DELTA 2 719 720 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap, 721 int cnt) 722 { 723 while (cnt > 0) { 724 *(*fbp)++ = cmap[*bmap++]; 725 cnt--; 726 } 727 } 728 729 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt) 730 { 731 ushort *fb = *fbp; 732 int cnt_8copy = cnt >> 3; 733 734 cnt -= cnt_8copy << 3; 735 while (cnt_8copy > 0) { 736 *fb++ = c; 737 *fb++ = c; 738 *fb++ = c; 739 *fb++ = c; 740 *fb++ = c; 741 *fb++ = c; 742 *fb++ = c; 743 *fb++ = c; 744 cnt_8copy--; 745 } 746 while (cnt > 0) { 747 *fb++ = c; 748 cnt--; 749 } 750 *fbp = fb; 751 } 752 753 /* 754 * Do not call this function directly, must be called from lcd_display_bitmap. 755 */ 756 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb, 757 int x_off, int y_off) 758 { 759 uchar *bmap; 760 ulong width, height; 761 ulong cnt, runlen; 762 int x, y; 763 int decode = 1; 764 765 width = get_unaligned_le32(&bmp->header.width); 766 height = get_unaligned_le32(&bmp->header.height); 767 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 768 769 x = 0; 770 y = height - 1; 771 772 while (decode) { 773 if (bmap[0] == BMP_RLE8_ESCAPE) { 774 switch (bmap[1]) { 775 case BMP_RLE8_EOL: 776 /* end of line */ 777 bmap += 2; 778 x = 0; 779 y--; 780 /* 16bpix, 2-byte per pixel, width should *2 */ 781 fb -= (width * 2 + lcd_line_length); 782 break; 783 case BMP_RLE8_EOBMP: 784 /* end of bitmap */ 785 decode = 0; 786 break; 787 case BMP_RLE8_DELTA: 788 /* delta run */ 789 x += bmap[2]; 790 y -= bmap[3]; 791 /* 16bpix, 2-byte per pixel, x should *2 */ 792 fb = (uchar *) (lcd_base + (y + y_off - 1) 793 * lcd_line_length + (x + x_off) * 2); 794 bmap += 4; 795 break; 796 default: 797 /* unencoded run */ 798 runlen = bmap[1]; 799 bmap += 2; 800 if (y < height) { 801 if (x < width) { 802 if (x + runlen > width) 803 cnt = width - x; 804 else 805 cnt = runlen; 806 draw_unencoded_bitmap( 807 (ushort **)&fb, 808 bmap, cmap, cnt); 809 } 810 x += runlen; 811 } 812 bmap += runlen; 813 if (runlen & 1) 814 bmap++; 815 } 816 } else { 817 /* encoded run */ 818 if (y < height) { 819 runlen = bmap[0]; 820 if (x < width) { 821 /* aggregate the same code */ 822 while (bmap[0] == 0xff && 823 bmap[2] != BMP_RLE8_ESCAPE && 824 bmap[1] == bmap[3]) { 825 runlen += bmap[2]; 826 bmap += 2; 827 } 828 if (x + runlen > width) 829 cnt = width - x; 830 else 831 cnt = runlen; 832 draw_encoded_bitmap((ushort **)&fb, 833 cmap[bmap[1]], cnt); 834 } 835 x += runlen; 836 } 837 bmap += 2; 838 } 839 } 840 } 841 #endif 842 843 #if defined(CONFIG_MPC823) 844 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++) 845 #else 846 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++ 847 #endif 848 849 #if defined(CONFIG_BMP_16BPP) 850 #if defined(CONFIG_ATMEL_LCD_BGR555) 851 static inline void fb_put_word(uchar **fb, uchar **from) 852 { 853 *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03); 854 *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2); 855 *from += 2; 856 } 857 #else 858 static inline void fb_put_word(uchar **fb, uchar **from) 859 { 860 *(*fb)++ = *(*from)++; 861 *(*fb)++ = *(*from)++; 862 } 863 #endif 864 #endif /* CONFIG_BMP_16BPP */ 865 866 int lcd_display_bitmap(ulong bmp_image, int x, int y) 867 { 868 ushort *cmap = NULL; 869 ushort *cmap_base = NULL; 870 ushort i, j; 871 uchar *fb; 872 bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0); 873 uchar *bmap; 874 ushort padded_width; 875 unsigned long width, height, byte_width; 876 unsigned long pwidth = panel_info.vl_col; 877 unsigned colors, bpix, bmp_bpix; 878 879 if (!bmp || !(bmp->header.signature[0] == 'B' && 880 bmp->header.signature[1] == 'M')) { 881 printf("Error: no valid bmp image at %lx\n", bmp_image); 882 883 return 1; 884 } 885 886 width = get_unaligned_le32(&bmp->header.width); 887 height = get_unaligned_le32(&bmp->header.height); 888 bmp_bpix = get_unaligned_le16(&bmp->header.bit_count); 889 890 colors = 1 << bmp_bpix; 891 892 bpix = NBITS(panel_info.vl_bpix); 893 894 if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) { 895 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 896 bpix, bmp_bpix); 897 898 return 1; 899 } 900 901 /* 902 * We support displaying 8bpp BMPs on 16bpp LCDs 903 * and displaying 24bpp BMPs on 32bpp LCDs 904 * */ 905 if (bpix != bmp_bpix && 906 !(bmp_bpix == 8 && bpix == 16) && 907 !(bmp_bpix == 24 && bpix == 32)) { 908 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n", 909 bpix, get_unaligned_le16(&bmp->header.bit_count)); 910 return 1; 911 } 912 913 debug("Display-bmp: %d x %d with %d colors\n", 914 (int)width, (int)height, (int)colors); 915 916 if (bmp_bpix == 8) { 917 cmap = configuration_get_cmap(); 918 cmap_base = cmap; 919 920 /* Set color map */ 921 for (i = 0; i < colors; ++i) { 922 bmp_color_table_entry_t cte = bmp->color_table[i]; 923 #if !defined(CONFIG_ATMEL_LCD) 924 ushort colreg = 925 ( ((cte.red) << 8) & 0xf800) | 926 ( ((cte.green) << 3) & 0x07e0) | 927 ( ((cte.blue) >> 3) & 0x001f) ; 928 *cmap = colreg; 929 #if defined(CONFIG_MPC823) 930 cmap--; 931 #else 932 cmap++; 933 #endif 934 #else /* CONFIG_ATMEL_LCD */ 935 lcd_setcolreg(i, cte.red, cte.green, cte.blue); 936 #endif 937 } 938 } 939 940 padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width); 941 942 #ifdef CONFIG_SPLASH_SCREEN_ALIGN 943 splash_align_axis(&x, pwidth, width); 944 splash_align_axis(&y, panel_info.vl_row, height); 945 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */ 946 947 if ((x + width) > pwidth) 948 width = pwidth - x; 949 if ((y + height) > panel_info.vl_row) 950 height = panel_info.vl_row - y; 951 952 bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset); 953 fb = (uchar *)(lcd_base + 954 (y + height - 1) * lcd_line_length + x * bpix / 8); 955 956 switch (bmp_bpix) { 957 case 1: /* pass through */ 958 case 8: { 959 #ifdef CONFIG_LCD_BMP_RLE8 960 u32 compression = get_unaligned_le32(&bmp->header.compression); 961 if (compression == BMP_BI_RLE8) { 962 if (bpix != 16) { 963 /* TODO implement render code for bpix != 16 */ 964 printf("Error: only support 16 bpix"); 965 return 1; 966 } 967 lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y); 968 break; 969 } 970 #endif 971 972 if (bpix != 16) 973 byte_width = width; 974 else 975 byte_width = width * 2; 976 977 for (i = 0; i < height; ++i) { 978 WATCHDOG_RESET(); 979 for (j = 0; j < width; j++) { 980 if (bpix != 16) { 981 FB_PUT_BYTE(fb, bmap); 982 } else { 983 *(uint16_t *)fb = cmap_base[*(bmap++)]; 984 fb += sizeof(uint16_t) / sizeof(*fb); 985 } 986 } 987 bmap += (padded_width - width); 988 fb -= byte_width + lcd_line_length; 989 } 990 break; 991 } 992 #if defined(CONFIG_BMP_16BPP) 993 case 16: 994 for (i = 0; i < height; ++i) { 995 WATCHDOG_RESET(); 996 for (j = 0; j < width; j++) 997 fb_put_word(&fb, &bmap); 998 999 bmap += (padded_width - width) * 2; 1000 fb -= width * 2 + lcd_line_length; 1001 } 1002 break; 1003 #endif /* CONFIG_BMP_16BPP */ 1004 #if defined(CONFIG_BMP_24BMP) 1005 case 24: 1006 for (i = 0; i < height; ++i) { 1007 for (j = 0; j < width; j++) { 1008 *(fb++) = *(bmap++); 1009 *(fb++) = *(bmap++); 1010 *(fb++) = *(bmap++); 1011 *(fb++) = 0; 1012 } 1013 fb -= lcd_line_length + width * (bpix / 8); 1014 } 1015 break; 1016 #endif /* CONFIG_BMP_24BMP */ 1017 #if defined(CONFIG_BMP_32BPP) 1018 case 32: 1019 for (i = 0; i < height; ++i) { 1020 for (j = 0; j < width; j++) { 1021 *(fb++) = *(bmap++); 1022 *(fb++) = *(bmap++); 1023 *(fb++) = *(bmap++); 1024 *(fb++) = *(bmap++); 1025 } 1026 fb -= lcd_line_length + width * (bpix / 8); 1027 } 1028 break; 1029 #endif /* CONFIG_BMP_32BPP */ 1030 default: 1031 break; 1032 }; 1033 1034 lcd_sync(); 1035 return 0; 1036 } 1037 #endif 1038 1039 static void *lcd_logo(void) 1040 { 1041 #ifdef CONFIG_SPLASH_SCREEN 1042 char *s; 1043 ulong addr; 1044 static int do_splash = 1; 1045 1046 if (do_splash && (s = getenv("splashimage")) != NULL) { 1047 int x = 0, y = 0; 1048 do_splash = 0; 1049 1050 if (splash_screen_prepare()) 1051 return (void *)lcd_base; 1052 1053 addr = simple_strtoul (s, NULL, 16); 1054 1055 splash_get_pos(&x, &y); 1056 1057 if (bmp_display(addr, x, y) == 0) 1058 return (void *)lcd_base; 1059 } 1060 #endif /* CONFIG_SPLASH_SCREEN */ 1061 1062 bitmap_plot(0, 0); 1063 1064 #ifdef CONFIG_LCD_INFO 1065 console_curr_col = LCD_INFO_X / VIDEO_FONT_WIDTH; 1066 console_curr_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT; 1067 lcd_show_board_info(); 1068 #endif /* CONFIG_LCD_INFO */ 1069 1070 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO) 1071 return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length); 1072 #else 1073 return (void *)lcd_base; 1074 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */ 1075 } 1076 1077 #ifdef CONFIG_SPLASHIMAGE_GUARD 1078 static int on_splashimage(const char *name, const char *value, enum env_op op, 1079 int flags) 1080 { 1081 ulong addr; 1082 int aligned; 1083 1084 if (op == env_op_delete) 1085 return 0; 1086 1087 addr = simple_strtoul(value, NULL, 16); 1088 /* See README.displaying-bmps */ 1089 aligned = (addr % 4 == 2); 1090 if (!aligned) { 1091 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n"); 1092 return -1; 1093 } 1094 1095 return 0; 1096 } 1097 1098 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage); 1099 #endif 1100 1101 void lcd_position_cursor(unsigned col, unsigned row) 1102 { 1103 console_curr_col = min_t(short, col, CONSOLE_COLS - 1); 1104 console_curr_row = min_t(short, row, CONSOLE_ROWS - 1); 1105 } 1106 1107 int lcd_get_pixel_width(void) 1108 { 1109 return panel_info.vl_col; 1110 } 1111 1112 int lcd_get_pixel_height(void) 1113 { 1114 return panel_info.vl_row; 1115 } 1116 1117 int lcd_get_screen_rows(void) 1118 { 1119 return CONSOLE_ROWS; 1120 } 1121 1122 int lcd_get_screen_columns(void) 1123 { 1124 return CONSOLE_COLS; 1125 } 1126 1127 #if defined(CONFIG_LCD_DT_SIMPLEFB) 1128 static int lcd_dt_simplefb_configure_node(void *blob, int off) 1129 { 1130 #if LCD_BPP == LCD_COLOR16 1131 return fdt_setup_simplefb_node(blob, off, gd->fb_base, 1132 panel_info.vl_col, panel_info.vl_row, 1133 panel_info.vl_col * 2, "r5g6b5"); 1134 #else 1135 return -1; 1136 #endif 1137 } 1138 1139 int lcd_dt_simplefb_add_node(void *blob) 1140 { 1141 static const char compat[] = "simple-framebuffer"; 1142 static const char disabled[] = "disabled"; 1143 int off, ret; 1144 1145 off = fdt_add_subnode(blob, 0, "framebuffer"); 1146 if (off < 0) 1147 return -1; 1148 1149 ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled)); 1150 if (ret < 0) 1151 return -1; 1152 1153 ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat)); 1154 if (ret < 0) 1155 return -1; 1156 1157 return lcd_dt_simplefb_configure_node(blob, off); 1158 } 1159 1160 int lcd_dt_simplefb_enable_existing_node(void *blob) 1161 { 1162 int off; 1163 1164 off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer"); 1165 if (off < 0) 1166 return -1; 1167 1168 return lcd_dt_simplefb_configure_node(blob, off); 1169 } 1170 #endif 1171