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