common/lcd.c

   1 /*
   2  * Common LCD routines
   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 /* #define DEBUG */
  11 #include <config.h>
  12 #include <common.h>
  13 #include <command.h>
  14 #include <env_callback.h>
  15 #include <linux/types.h>
  16 #include <stdio_dev.h>
  17 #include <lcd.h>
  18 #include <mapmem.h>
  19 #include <watchdog.h>
  20 #include <asm/unaligned.h>
  21 #include <splash.h>
  22 #include <asm/io.h>
  23 #include <asm/unaligned.h>
  24 #include <video_font.h>
  25
  26 #ifdef CONFIG_LCD_LOGO
  27 #include <bmp_logo.h>
  28 #include <bmp_logo_data.h>
  29 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  30 #error Default Color Map overlaps with Logo Color Map
  31 #endif
  32 #endif
  33
  34 #ifndef CONFIG_LCD_ALIGNMENT
  35 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
  36 #endif
  37
  38 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
  39         (LCD_BPP != LCD_COLOR32)
  40 #error Unsupported LCD BPP.
  41 #endif
  42
  43 DECLARE_GLOBAL_DATA_PTR;
  44
  45 static int lcd_init(void *lcdbase);
  46 static void lcd_logo(void);
  47 static void lcd_setfgcolor(int color);
  48 static void lcd_setbgcolor(int color);
  49
  50 static int lcd_color_fg;
  51 static int lcd_color_bg;
  52 int lcd_line_length;
  53 char lcd_is_enabled = 0;
  54 static void *lcd_base;                  /* Start of framebuffer memory  */
  55 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
  56
  57 /* Flush LCD activity to the caches */
  58 void lcd_sync(void)
  59 {
  60         /*
  61          * flush_dcache_range() is declared in common.h but it seems that some
  62          * architectures do not actually implement it. Is there a way to find
  63          * out whether it exists? For now, ARM is safe.
  64          */
  65 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
  66         int line_length;
  67
  68         if (lcd_flush_dcache)
  69                 flush_dcache_range((u32)lcd_base,
  70                         (u32)(lcd_base + lcd_get_size(&line_length)));
  71 #endif
  72 }
  73
  74 void lcd_set_flush_dcache(int flush)
  75 {
  76         lcd_flush_dcache = (flush != 0);
  77 }
  78
  79 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
  80 {
  81         lcd_putc(c);
  82 }
  83
  84 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
  85 {
  86         lcd_puts(s);
  87 }
  88
  89 /* Small utility to check that you got the colours right */
  90 #ifdef LCD_TEST_PATTERN
  91
  92 #define N_BLK_VERT      2
  93 #define N_BLK_HOR       3
  94
  95 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
  96         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
  97         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
  98 };
  99
 100 static void test_pattern(void)
 101 {
 102         ushort v_max  = panel_info.vl_row;
 103         ushort h_max  = panel_info.vl_col;
 104         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 105         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 106         ushort v, h;
 107         uchar *pix = (uchar *)lcd_base;
 108
 109         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 110                 h_max, v_max, h_step, v_step);
 111
 112         /* WARNING: Code silently assumes 8bit/pixel */
 113         for (v = 0; v < v_max; ++v) {
 114                 uchar iy = v / v_step;
 115                 for (h = 0; h < h_max; ++h) {
 116                         uchar ix = N_BLK_HOR * iy + h / h_step;
 117                         *pix++ = test_colors[ix];
 118                 }
 119         }
 120 }
 121 #endif /* LCD_TEST_PATTERN */
 122
 123 /*
 124  * With most lcd drivers the line length is set up
 125  * by calculating it from panel_info parameters. Some
 126  * drivers need to calculate the line length differently,
 127  * so make the function weak to allow overriding it.
 128  */
 129 __weak int lcd_get_size(int *line_length)
 130 {
 131         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
 132         return *line_length * panel_info.vl_row;
 133 }
 134
 135 int drv_lcd_init(void)
 136 {
 137         struct stdio_dev lcddev;
 138         int rc;
 139
 140         lcd_base = map_sysmem(gd->fb_base, 0);
 141
 142         lcd_init(lcd_base);
 143
 144         /* Device initialization */
 145         memset(&lcddev, 0, sizeof(lcddev));
 146
 147         strcpy(lcddev.name, "lcd");
 148         lcddev.ext   = 0;                       /* No extensions */
 149         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 150         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
 151         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
 152
 153         rc = stdio_register(&lcddev);
 154
 155         return (rc == 0) ? 1 : rc;
 156 }
 157
 158 void lcd_clear(void)
 159 {
 160         int bg_color;
 161         char *s;
 162         ulong addr;
 163         static int do_splash = 1;
 164 #if LCD_BPP == LCD_COLOR8
 165         /* Setting the palette */
 166         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
 167         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
 168         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
 169         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
 170         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
 171         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
 172         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
 173         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
 174         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
 175 #endif
 176
 177 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 178         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
 179         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
 180         bg_color = CONSOLE_COLOR_WHITE;
 181 #else
 182         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
 183         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
 184         bg_color = CONSOLE_COLOR_BLACK;
 185 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 186
 187 #ifdef  LCD_TEST_PATTERN
 188         test_pattern();
 189 #else
 190         /* set framebuffer to background color */
 191 #if (LCD_BPP != LCD_COLOR32)
 192         memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
 193 #else
 194         u32 *ppix = lcd_base;
 195         u32 i;
 196         for (i = 0;
 197            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
 198            i++) {
 199                 *ppix++ = bg_color;
 200         }
 201 #endif
 202 #endif
 203         /* setup text-console */
 204         debug("[LCD] setting up console...\n");
 205         lcd_init_console(lcd_base,
 206                          panel_info.vl_col,
 207                          panel_info.vl_row,
 208                          panel_info.vl_rot);
 209         /* Paint the logo and retrieve LCD base address */
 210         debug("[LCD] Drawing the logo...\n");
 211         if (do_splash) {
 212                 s = getenv("splashimage");
 213                 if (s) {
 214                         do_splash = 0;
 215                         addr = simple_strtoul(s, NULL, 16);
 216                         if (lcd_splash(addr) == 0) {
 217                                 lcd_sync();
 218                                 return;
 219                         }
 220                 }
 221         }
 222
 223         lcd_logo();
 224 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 225         addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
 226         lcd_init_console((void *)addr, panel_info.vl_col,
 227                          panel_info.vl_row, panel_info.vl_rot);
 228 #endif
 229         lcd_sync();
 230 }
 231
 232 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
 233                         char *const argv[])
 234 {
 235         lcd_clear();
 236         return 0;
 237 }
 238 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", "");
 239
 240 static int lcd_init(void *lcdbase)
 241 {
 242         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 243         lcd_ctrl_init(lcdbase);
 244
 245         /*
 246          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
 247          * the 'lcdbase' argument and uses custom lcd base address
 248          * by setting up gd->fb_base. Check for this condition and fixup
 249          * 'lcd_base' address.
 250          */
 251         if (map_to_sysmem(lcdbase) != gd->fb_base)
 252                 lcd_base = map_sysmem(gd->fb_base, 0);
 253
 254         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
 255
 256         lcd_get_size(&lcd_line_length);
 257         lcd_is_enabled = 1;
 258         lcd_clear();
 259         lcd_enable();
 260
 261         /* Initialize the console */
 262         lcd_set_col(0);
 263 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 264         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
 265 #else
 266         lcd_set_row(1); /* leave 1 blank line below logo */
 267 #endif
 268
 269         return 0;
 270 }
 271
 272 /*
 273  * This is called early in the system initialization to grab memory
 274  * for the LCD controller.
 275  * Returns new address for monitor, after reserving LCD buffer memory
 276  *
 277  * Note that this is running from ROM, so no write access to global data.
 278  */
 279 ulong lcd_setmem(ulong addr)
 280 {
 281         ulong size;
 282         int line_length;
 283
 284         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
 285                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
 286
 287         size = lcd_get_size(&line_length);
 288
 289         /* Round up to nearest full page, or MMU section if defined */
 290         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
 291         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
 292
 293         /* Allocate pages for the frame buffer. */
 294         addr -= size;
 295
 296         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
 297               size >> 10, addr);
 298
 299         return addr;
 300 }
 301
 302 static void lcd_setfgcolor(int color)
 303 {
 304         lcd_color_fg = color;
 305 }
 306
 307 int lcd_getfgcolor(void)
 308 {
 309         return lcd_color_fg;
 310 }
 311
 312 static void lcd_setbgcolor(int color)
 313 {
 314         lcd_color_bg = color;
 315 }
 316
 317 int lcd_getbgcolor(void)
 318 {
 319         return lcd_color_bg;
 320 }
 321
 322 #ifdef CONFIG_LCD_LOGO
 323 __weak void lcd_logo_set_cmap(void)
 324 {
 325         int i;
 326         ushort *cmap = configuration_get_cmap();
 327
 328         for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
 329                 *cmap++ = bmp_logo_palette[i];
 330 }
 331
 332 void lcd_logo_plot(int x, int y)
 333 {
 334         ushort i, j;
 335         uchar *bmap = &bmp_logo_bitmap[0];
 336         unsigned bpix = NBITS(panel_info.vl_bpix);
 337         uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
 338         ushort *fb16;
 339
 340         debug("Logo: width %d  height %d  colors %d\n",
 341               BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
 342
 343         if (bpix < 12) {
 344                 WATCHDOG_RESET();
 345                 lcd_logo_set_cmap();
 346                 WATCHDOG_RESET();
 347
 348                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 349                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
 350                         bmap += BMP_LOGO_WIDTH;
 351                         fb += panel_info.vl_col;
 352                 }
 353         }
 354         else { /* true color mode */
 355                 u16 col16;
 356                 fb16 = (ushort *)fb;
 357                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 358                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 359                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 360                                 fb16[j] =
 361                                         ((col16 & 0x000F) << 1) |
 362                                         ((col16 & 0x00F0) << 3) |
 363                                         ((col16 & 0x0F00) << 4);
 364                                 }
 365                         bmap += BMP_LOGO_WIDTH;
 366                         fb16 += panel_info.vl_col;
 367                 }
 368         }
 369
 370         WATCHDOG_RESET();
 371         lcd_sync();
 372 }
 373 #else
 374 static inline void lcd_logo_plot(int x, int y) {}
 375 #endif /* CONFIG_LCD_LOGO */
 376
 377 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 378 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 379 #define BMP_ALIGN_CENTER        0x7FFF
 380
 381 static void splash_align_axis(int *axis, unsigned long panel_size,
 382                                         unsigned long picture_size)
 383 {
 384         unsigned long panel_picture_delta = panel_size - picture_size;
 385         unsigned long axis_alignment;
 386
 387         if (*axis == BMP_ALIGN_CENTER)
 388                 axis_alignment = panel_picture_delta / 2;
 389         else if (*axis < 0)
 390                 axis_alignment = panel_picture_delta + *axis + 1;
 391         else
 392                 return;
 393
 394         *axis = max(0, (int)axis_alignment);
 395 }
 396 #endif
 397
 398 #ifdef CONFIG_LCD_BMP_RLE8
 399 #define BMP_RLE8_ESCAPE         0
 400 #define BMP_RLE8_EOL            0
 401 #define BMP_RLE8_EOBMP          1
 402 #define BMP_RLE8_DELTA          2
 403
 404 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
 405                                   int cnt)
 406 {
 407         while (cnt > 0) {
 408                 *(*fbp)++ = cmap[*bmap++];
 409                 cnt--;
 410         }
 411 }
 412
 413 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
 414 {
 415         ushort *fb = *fbp;
 416         int cnt_8copy = cnt >> 3;
 417
 418         cnt -= cnt_8copy << 3;
 419         while (cnt_8copy > 0) {
 420                 *fb++ = c;
 421                 *fb++ = c;
 422                 *fb++ = c;
 423                 *fb++ = c;
 424                 *fb++ = c;
 425                 *fb++ = c;
 426                 *fb++ = c;
 427                 *fb++ = c;
 428                 cnt_8copy--;
 429         }
 430         while (cnt > 0) {
 431                 *fb++ = c;
 432                 cnt--;
 433         }
 434         *fbp = fb;
 435 }
 436
 437 /*
 438  * Do not call this function directly, must be called from lcd_display_bitmap.
 439  */
 440 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
 441                                     uchar *fb, int x_off, int y_off)
 442 {
 443         uchar *bmap;
 444         ulong width, height;
 445         ulong cnt, runlen;
 446         int x, y;
 447         int decode = 1;
 448
 449         width = get_unaligned_le32(&bmp->header.width);
 450         height = get_unaligned_le32(&bmp->header.height);
 451         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 452
 453         x = 0;
 454         y = height - 1;
 455
 456         while (decode) {
 457                 if (bmap[0] == BMP_RLE8_ESCAPE) {
 458                         switch (bmap[1]) {
 459                         case BMP_RLE8_EOL:
 460                                 /* end of line */
 461                                 bmap += 2;
 462                                 x = 0;
 463                                 y--;
 464                                 /* 16bpix, 2-byte per pixel, width should *2 */
 465                                 fb -= (width * 2 + lcd_line_length);
 466                                 break;
 467                         case BMP_RLE8_EOBMP:
 468                                 /* end of bitmap */
 469                                 decode = 0;
 470                                 break;
 471                         case BMP_RLE8_DELTA:
 472                                 /* delta run */
 473                                 x += bmap[2];
 474                                 y -= bmap[3];
 475                                 /* 16bpix, 2-byte per pixel, x should *2 */
 476                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
 477                                         * lcd_line_length + (x + x_off) * 2);
 478                                 bmap += 4;
 479                                 break;
 480                         default:
 481                                 /* unencoded run */
 482                                 runlen = bmap[1];
 483                                 bmap += 2;
 484                                 if (y < height) {
 485                                         if (x < width) {
 486                                                 if (x + runlen > width)
 487                                                         cnt = width - x;
 488                                                 else
 489                                                         cnt = runlen;
 490                                                 draw_unencoded_bitmap(
 491                                                         (ushort **)&fb,
 492                                                         bmap, cmap, cnt);
 493                                         }
 494                                         x += runlen;
 495                                 }
 496                                 bmap += runlen;
 497                                 if (runlen & 1)
 498                                         bmap++;
 499                         }
 500                 } else {
 501                         /* encoded run */
 502                         if (y < height) {
 503                                 runlen = bmap[0];
 504                                 if (x < width) {
 505                                         /* aggregate the same code */
 506                                         while (bmap[0] == 0xff &&
 507                                                bmap[2] != BMP_RLE8_ESCAPE &&
 508                                                bmap[1] == bmap[3]) {
 509                                                 runlen += bmap[2];
 510                                                 bmap += 2;
 511                                         }
 512                                         if (x + runlen > width)
 513                                                 cnt = width - x;
 514                                         else
 515                                                 cnt = runlen;
 516                                         draw_encoded_bitmap((ushort **)&fb,
 517                                                 cmap[bmap[1]], cnt);
 518                                 }
 519                                 x += runlen;
 520                         }
 521                         bmap += 2;
 522                 }
 523         }
 524 }
 525 #endif
 526
 527 __weak void fb_put_byte(uchar **fb, uchar **from)
 528 {
 529         *(*fb)++ = *(*from)++;
 530 }
 531
 532 #if defined(CONFIG_BMP_16BPP)
 533 __weak void fb_put_word(uchar **fb, uchar **from)
 534 {
 535         *(*fb)++ = *(*from)++;
 536         *(*fb)++ = *(*from)++;
 537 }
 538 #endif /* CONFIG_BMP_16BPP */
 539
 540 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
 541 {
 542         int i;
 543         struct bmp_color_table_entry cte;
 544         ushort *cmap = configuration_get_cmap();
 545
 546         for (i = 0; i < colors; ++i) {
 547                 cte = bmp->color_table[i];
 548                 *cmap = (((cte.red)   << 8) & 0xf800) |
 549                         (((cte.green) << 3) & 0x07e0) |
 550                         (((cte.blue)  >> 3) & 0x001f);
 551 #if defined(CONFIG_MPC823)
 552                 cmap--;
 553 #else
 554                 cmap++;
 555 #endif
 556         }
 557 }
 558
 559 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 560 {
 561         ushort *cmap_base = NULL;
 562         ushort i, j;
 563         uchar *fb;
 564         struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
 565         uchar *bmap;
 566         ushort padded_width;
 567         unsigned long width, height, byte_width;
 568         unsigned long pwidth = panel_info.vl_col;
 569         unsigned colors, bpix, bmp_bpix;
 570         int hdr_size;
 571         struct bmp_color_table_entry *palette = bmp->color_table;
 572
 573         if (!bmp || !(bmp->header.signature[0] == 'B' &&
 574                 bmp->header.signature[1] == 'M')) {
 575                 printf("Error: no valid bmp image at %lx\n", bmp_image);
 576
 577                 return 1;
 578         }
 579
 580         width = get_unaligned_le32(&bmp->header.width);
 581         height = get_unaligned_le32(&bmp->header.height);
 582         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
 583         hdr_size = get_unaligned_le16(&bmp->header.size);
 584         debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
 585
 586         colors = 1 << bmp_bpix;
 587
 588         bpix = NBITS(panel_info.vl_bpix);
 589
 590         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
 591                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 592                         bpix, bmp_bpix);
 593
 594                 return 1;
 595         }
 596
 597         /*
 598          * We support displaying 8bpp BMPs on 16bpp LCDs
 599          * and displaying 24bpp BMPs on 32bpp LCDs
 600          * */
 601         if (bpix != bmp_bpix &&
 602             !(bmp_bpix == 8 && bpix == 16) &&
 603             !(bmp_bpix == 24 && bpix == 32)) {
 604                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 605                         bpix, get_unaligned_le16(&bmp->header.bit_count));
 606                 return 1;
 607         }
 608
 609         debug("Display-bmp: %d x %d  with %d colors, display %d\n",
 610               (int)width, (int)height, (int)colors, 1 << bpix);
 611
 612         if (bmp_bpix == 8)
 613                 lcd_set_cmap(bmp, colors);
 614
 615         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
 616
 617 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 618         splash_align_axis(&x, pwidth, width);
 619         splash_align_axis(&y, panel_info.vl_row, height);
 620 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 621
 622         if ((x + width) > pwidth)
 623                 width = pwidth - x;
 624         if ((y + height) > panel_info.vl_row)
 625                 height = panel_info.vl_row - y;
 626
 627         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 628         fb   = (uchar *)(lcd_base +
 629                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 630
 631         switch (bmp_bpix) {
 632         case 1:
 633         case 8: {
 634                 cmap_base = configuration_get_cmap();
 635 #ifdef CONFIG_LCD_BMP_RLE8
 636                 u32 compression = get_unaligned_le32(&bmp->header.compression);
 637                 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
 638                 if (compression == BMP_BI_RLE8) {
 639                         if (bpix != 16) {
 640                                 /* TODO implement render code for bpix != 16 */
 641                                 printf("Error: only support 16 bpix");
 642                                 return 1;
 643                         }
 644                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
 645                         break;
 646                 }
 647 #endif
 648
 649                 if (bpix != 16)
 650                         byte_width = width;
 651                 else
 652                         byte_width = width * 2;
 653
 654                 for (i = 0; i < height; ++i) {
 655                         WATCHDOG_RESET();
 656                         for (j = 0; j < width; j++) {
 657                                 if (bpix != 16) {
 658                                         fb_put_byte(&fb, &bmap);
 659                                 } else {
 660                                         struct bmp_color_table_entry *entry;
 661                                         uint val;
 662
 663                                         if (cmap_base) {
 664                                                 val = cmap_base[*bmap];
 665                                         } else {
 666                                                 entry = &palette[*bmap];
 667                                                 val = entry->blue >> 3 |
 668                                                         entry->green >> 2 << 5 |
 669                                                         entry->red >> 3 << 11;
 670                                         }
 671                                         *(uint16_t *)fb = val;
 672                                         bmap++;
 673                                         fb += sizeof(uint16_t) / sizeof(*fb);
 674                                 }
 675                         }
 676                         bmap += (padded_width - width);
 677                         fb -= byte_width + lcd_line_length;
 678                 }
 679                 break;
 680         }
 681 #if defined(CONFIG_BMP_16BPP)
 682         case 16:
 683                 for (i = 0; i < height; ++i) {
 684                         WATCHDOG_RESET();
 685                         for (j = 0; j < width; j++)
 686                                 fb_put_word(&fb, &bmap);
 687
 688                         bmap += (padded_width - width) * 2;
 689                         fb -= width * 2 + lcd_line_length;
 690                 }
 691                 break;
 692 #endif /* CONFIG_BMP_16BPP */
 693 #if defined(CONFIG_BMP_24BMP)
 694         case 24:
 695                 for (i = 0; i < height; ++i) {
 696                         for (j = 0; j < width; j++) {
 697                                 *(fb++) = *(bmap++);
 698                                 *(fb++) = *(bmap++);
 699                                 *(fb++) = *(bmap++);
 700                                 *(fb++) = 0;
 701                         }
 702                         fb -= lcd_line_length + width * (bpix / 8);
 703                 }
 704                 break;
 705 #endif /* CONFIG_BMP_24BMP */
 706 #if defined(CONFIG_BMP_32BPP)
 707         case 32:
 708                 for (i = 0; i < height; ++i) {
 709                         for (j = 0; j < width; j++) {
 710                                 *(fb++) = *(bmap++);
 711                                 *(fb++) = *(bmap++);
 712                                 *(fb++) = *(bmap++);
 713                                 *(fb++) = *(bmap++);
 714                         }
 715                         fb -= lcd_line_length + width * (bpix / 8);
 716                 }
 717                 break;
 718 #endif /* CONFIG_BMP_32BPP */
 719         default:
 720                 break;
 721         };
 722
 723         lcd_sync();
 724         return 0;
 725 }
 726 #endif
 727
 728 static void lcd_logo(void)
 729 {
 730         lcd_logo_plot(0, 0);
 731
 732 #ifdef CONFIG_LCD_INFO
 733         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
 734         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
 735         lcd_show_board_info();
 736 #endif /* CONFIG_LCD_INFO */
 737 }
 738
 739 #ifdef CONFIG_SPLASHIMAGE_GUARD
 740 static int on_splashimage(const char *name, const char *value, enum env_op op,
 741         int flags)
 742 {
 743         ulong addr;
 744         int aligned;
 745
 746         if (op == env_op_delete)
 747                 return 0;
 748
 749         addr = simple_strtoul(value, NULL, 16);
 750         /* See README.displaying-bmps */
 751         aligned = (addr % 4 == 2);
 752         if (!aligned) {
 753                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
 754                 return -1;
 755         }
 756
 757         return 0;
 758 }
 759
 760 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
 761 #endif
 762
 763 int lcd_get_pixel_width(void)
 764 {
 765         return panel_info.vl_col;
 766 }
 767
 768 int lcd_get_pixel_height(void)
 769 {
 770         return panel_info.vl_row;
 771 }