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