common/lcd.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Common LCD routines
   4  *
   5  * (C) Copyright 2001-2002
   6  * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
   7  */
   8
   9 /* #define DEBUG */
  10 #include <config.h>
  11 #include <common.h>
  12 #include <command.h>
  13 #include <env_callback.h>
  14 #include <linux/types.h>
  15 #include <stdio_dev.h>
  16 #include <lcd.h>
  17 #include <mapmem.h>
  18 #include <watchdog.h>
  19 #include <asm/unaligned.h>
  20 #include <splash.h>
  21 #include <asm/io.h>
  22 #include <asm/unaligned.h>
  23 #include <video_font.h>
  24
  25 #ifdef CONFIG_LCD_LOGO
  26 #include <bmp_logo.h>
  27 #include <bmp_logo_data.h>
  28 #if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  29 #error Default Color Map overlaps with Logo Color Map
  30 #endif
  31 #endif
  32
  33 #ifndef CONFIG_LCD_ALIGNMENT
  34 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
  35 #endif
  36
  37 #if (LCD_BPP != LCD_COLOR8) && (LCD_BPP != LCD_COLOR16) && \
  38         (LCD_BPP != LCD_COLOR32)
  39 #error Unsupported LCD BPP.
  40 #endif
  41
  42 DECLARE_GLOBAL_DATA_PTR;
  43
  44 static int lcd_init(void *lcdbase);
  45 static void lcd_logo(void);
  46 static void lcd_setfgcolor(int color);
  47 static void lcd_setbgcolor(int color);
  48
  49 static int lcd_color_fg;
  50 static int lcd_color_bg;
  51 int lcd_line_length;
  52 char lcd_is_enabled = 0;
  53 static void *lcd_base;                  /* Start of framebuffer memory  */
  54 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
  55
  56 /* Flush LCD activity to the caches */
  57 void lcd_sync(void)
  58 {
  59         /*
  60          * flush_dcache_range() is declared in common.h but it seems that some
  61          * architectures do not actually implement it. Is there a way to find
  62          * out whether it exists? For now, ARM is safe.
  63          */
  64 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
  65         int line_length;
  66
  67         if (lcd_flush_dcache)
  68                 flush_dcache_range((ulong)lcd_base,
  69                         (ulong)(lcd_base + lcd_get_size(&line_length)));
  70 #endif
  71 }
  72
  73 void lcd_set_flush_dcache(int flush)
  74 {
  75         lcd_flush_dcache = (flush != 0);
  76 }
  77
  78 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
  79 {
  80         lcd_putc(c);
  81 }
  82
  83 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
  84 {
  85         lcd_puts(s);
  86 }
  87
  88 /* Small utility to check that you got the colours right */
  89 #ifdef LCD_TEST_PATTERN
  90
  91 #if LCD_BPP == LCD_COLOR8
  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 }; /*LCD_BPP == LCD_COLOR8 */
  99
 100 #elif LCD_BPP == LCD_COLOR16
 101 #define N_BLK_VERT      2
 102 #define N_BLK_HOR       4
 103
 104 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
 105         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,   CONSOLE_COLOR_BLUE,
 106         CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,     CONSOLE_COLOR_GREY,     CONSOLE_COLOR_WHITE,
 107 };
 108 #endif /*LCD_BPP == LCD_COLOR16 */
 109
 110 static void test_pattern(void)
 111 {
 112         ushort v_max  = panel_info.vl_row;
 113         ushort h_max  = panel_info.vl_col;
 114         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 115         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 116         ushort v, h;
 117 #if LCD_BPP == LCD_COLOR8
 118         uchar *pix = (uchar *)lcd_base;
 119 #elif LCD_BPP == LCD_COLOR16
 120         ushort *pix = (ushort *)lcd_base;
 121 #endif
 122
 123         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 124                 h_max, v_max, h_step, v_step);
 125
 126         for (v = 0; v < v_max; ++v) {
 127                 uchar iy = v / v_step;
 128                 for (h = 0; h < h_max; ++h) {
 129                         uchar ix = N_BLK_HOR * iy + h / h_step;
 130                         *pix++ = test_colors[ix];
 131                 }
 132         }
 133 }
 134 #endif /* LCD_TEST_PATTERN */
 135
 136 /*
 137  * With most lcd drivers the line length is set up
 138  * by calculating it from panel_info parameters. Some
 139  * drivers need to calculate the line length differently,
 140  * so make the function weak to allow overriding it.
 141  */
 142 __weak int lcd_get_size(int *line_length)
 143 {
 144         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
 145         return *line_length * panel_info.vl_row;
 146 }
 147
 148 int drv_lcd_init(void)
 149 {
 150         struct stdio_dev lcddev;
 151         int rc;
 152
 153         lcd_base = map_sysmem(gd->fb_base, 0);
 154
 155         lcd_init(lcd_base);
 156
 157         /* Device initialization */
 158         memset(&lcddev, 0, sizeof(lcddev));
 159
 160         strcpy(lcddev.name, "lcd");
 161         lcddev.ext   = 0;                       /* No extensions */
 162         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 163         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
 164         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
 165
 166         rc = stdio_register(&lcddev);
 167
 168         return (rc == 0) ? 1 : rc;
 169 }
 170
 171 void lcd_clear(void)
 172 {
 173         int bg_color;
 174         char *s;
 175         ulong addr;
 176         static int do_splash = 1;
 177 #if LCD_BPP == LCD_COLOR8
 178         /* Setting the palette */
 179         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
 180         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
 181         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
 182         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
 183         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
 184         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
 185         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
 186         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
 187         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
 188 #endif
 189
 190 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 191         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
 192         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
 193         bg_color = CONSOLE_COLOR_WHITE;
 194 #else
 195         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
 196         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
 197         bg_color = CONSOLE_COLOR_BLACK;
 198 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 199
 200 #ifdef  LCD_TEST_PATTERN
 201         test_pattern();
 202 #else
 203         /* set framebuffer to background color */
 204 #if (LCD_BPP != LCD_COLOR32)
 205         memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
 206 #else
 207         u32 *ppix = lcd_base;
 208         u32 i;
 209         for (i = 0;
 210            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
 211            i++) {
 212                 *ppix++ = bg_color;
 213         }
 214 #endif
 215 #endif
 216         /* setup text-console */
 217         debug("[LCD] setting up console...\n");
 218         lcd_init_console(lcd_base,
 219                          panel_info.vl_col,
 220                          panel_info.vl_row,
 221                          panel_info.vl_rot);
 222         /* Paint the logo and retrieve LCD base address */
 223         debug("[LCD] Drawing the logo...\n");
 224         if (do_splash) {
 225                 s = env_get("splashimage");
 226                 if (s) {
 227                         do_splash = 0;
 228                         addr = simple_strtoul(s, NULL, 16);
 229                         if (lcd_splash(addr) == 0) {
 230                                 lcd_sync();
 231                                 return;
 232                         }
 233                 }
 234         }
 235
 236         lcd_logo();
 237 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 238         addr = (ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
 239         lcd_init_console((void *)addr, panel_info.vl_col,
 240                          panel_info.vl_row, panel_info.vl_rot);
 241 #endif
 242         lcd_sync();
 243 }
 244
 245 static int lcd_init(void *lcdbase)
 246 {
 247         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 248         lcd_ctrl_init(lcdbase);
 249
 250         /*
 251          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
 252          * the 'lcdbase' argument and uses custom lcd base address
 253          * by setting up gd->fb_base. Check for this condition and fixup
 254          * 'lcd_base' address.
 255          */
 256         if (map_to_sysmem(lcdbase) != gd->fb_base)
 257                 lcd_base = map_sysmem(gd->fb_base, 0);
 258
 259         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
 260
 261         lcd_get_size(&lcd_line_length);
 262         lcd_is_enabled = 1;
 263         lcd_clear();
 264         lcd_enable();
 265
 266         /* Initialize the console */
 267         lcd_set_col(0);
 268 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 269         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
 270 #else
 271         lcd_set_row(1); /* leave 1 blank line below logo */
 272 #endif
 273
 274         return 0;
 275 }
 276
 277 /*
 278  * This is called early in the system initialization to grab memory
 279  * for the LCD controller.
 280  * Returns new address for monitor, after reserving LCD buffer memory
 281  *
 282  * Note that this is running from ROM, so no write access to global data.
 283  */
 284 ulong lcd_setmem(ulong addr)
 285 {
 286         ulong size;
 287         int line_length;
 288
 289         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
 290                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
 291
 292         size = lcd_get_size(&line_length);
 293
 294         /* Round up to nearest full page, or MMU section if defined */
 295         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
 296         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
 297
 298         /* Allocate pages for the frame buffer. */
 299         addr -= size;
 300
 301         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
 302               size >> 10, addr);
 303
 304         return addr;
 305 }
 306
 307 static void lcd_setfgcolor(int color)
 308 {
 309         lcd_color_fg = color;
 310 }
 311
 312 int lcd_getfgcolor(void)
 313 {
 314         return lcd_color_fg;
 315 }
 316
 317 static void lcd_setbgcolor(int color)
 318 {
 319         lcd_color_bg = color;
 320 }
 321
 322 int lcd_getbgcolor(void)
 323 {
 324         return lcd_color_bg;
 325 }
 326
 327 #ifdef CONFIG_LCD_LOGO
 328 __weak void lcd_logo_set_cmap(void)
 329 {
 330         int i;
 331         ushort *cmap = configuration_get_cmap();
 332
 333         for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
 334                 *cmap++ = bmp_logo_palette[i];
 335 }
 336
 337 void lcd_logo_plot(int x, int y)
 338 {
 339         ushort i, j;
 340         uchar *bmap = &bmp_logo_bitmap[0];
 341         unsigned bpix = NBITS(panel_info.vl_bpix);
 342         uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
 343         ushort *fb16;
 344
 345         debug("Logo: width %d  height %d  colors %d\n",
 346               BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
 347
 348         if (bpix < 12) {
 349                 WATCHDOG_RESET();
 350                 lcd_logo_set_cmap();
 351                 WATCHDOG_RESET();
 352
 353                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 354                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
 355                         bmap += BMP_LOGO_WIDTH;
 356                         fb += panel_info.vl_col;
 357                 }
 358         }
 359         else { /* true color mode */
 360                 u16 col16;
 361                 fb16 = (ushort *)fb;
 362                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 363                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 364                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 365                                 fb16[j] =
 366                                         ((col16 & 0x000F) << 1) |
 367                                         ((col16 & 0x00F0) << 3) |
 368                                         ((col16 & 0x0F00) << 4);
 369                                 }
 370                         bmap += BMP_LOGO_WIDTH;
 371                         fb16 += panel_info.vl_col;
 372                 }
 373         }
 374
 375         WATCHDOG_RESET();
 376         lcd_sync();
 377 }
 378 #else
 379 static inline void lcd_logo_plot(int x, int y) {}
 380 #endif /* CONFIG_LCD_LOGO */
 381
 382 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 383 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 384 #define BMP_ALIGN_CENTER        0x7FFF
 385
 386 static void splash_align_axis(int *axis, unsigned long panel_size,
 387                                         unsigned long picture_size)
 388 {
 389         unsigned long panel_picture_delta = panel_size - picture_size;
 390         unsigned long axis_alignment;
 391
 392         if (*axis == BMP_ALIGN_CENTER)
 393                 axis_alignment = panel_picture_delta / 2;
 394         else if (*axis < 0)
 395                 axis_alignment = panel_picture_delta + *axis + 1;
 396         else
 397                 return;
 398
 399         *axis = max(0, (int)axis_alignment);
 400 }
 401 #endif
 402
 403 #ifdef CONFIG_LCD_BMP_RLE8
 404 #define BMP_RLE8_ESCAPE         0
 405 #define BMP_RLE8_EOL            0
 406 #define BMP_RLE8_EOBMP          1
 407 #define BMP_RLE8_DELTA          2
 408
 409 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
 410                                   int cnt)
 411 {
 412         while (cnt > 0) {
 413                 *(*fbp)++ = cmap[*bmap++];
 414                 cnt--;
 415         }
 416 }
 417
 418 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
 419 {
 420         ushort *fb = *fbp;
 421         int cnt_8copy = cnt >> 3;
 422
 423         cnt -= cnt_8copy << 3;
 424         while (cnt_8copy > 0) {
 425                 *fb++ = c;
 426                 *fb++ = c;
 427                 *fb++ = c;
 428                 *fb++ = c;
 429                 *fb++ = c;
 430                 *fb++ = c;
 431                 *fb++ = c;
 432                 *fb++ = c;
 433                 cnt_8copy--;
 434         }
 435         while (cnt > 0) {
 436                 *fb++ = c;
 437                 cnt--;
 438         }
 439         *fbp = fb;
 440 }
 441
 442 /*
 443  * Do not call this function directly, must be called from lcd_display_bitmap.
 444  */
 445 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
 446                                     uchar *fb, int x_off, int y_off)
 447 {
 448         uchar *bmap;
 449         ulong width, height;
 450         ulong cnt, runlen;
 451         int x, y;
 452         int decode = 1;
 453
 454         width = get_unaligned_le32(&bmp->header.width);
 455         height = get_unaligned_le32(&bmp->header.height);
 456         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 457
 458         x = 0;
 459         y = height - 1;
 460
 461         while (decode) {
 462                 if (bmap[0] == BMP_RLE8_ESCAPE) {
 463                         switch (bmap[1]) {
 464                         case BMP_RLE8_EOL:
 465                                 /* end of line */
 466                                 bmap += 2;
 467                                 x = 0;
 468                                 y--;
 469                                 /* 16bpix, 2-byte per pixel, width should *2 */
 470                                 fb -= (width * 2 + lcd_line_length);
 471                                 break;
 472                         case BMP_RLE8_EOBMP:
 473                                 /* end of bitmap */
 474                                 decode = 0;
 475                                 break;
 476                         case BMP_RLE8_DELTA:
 477                                 /* delta run */
 478                                 x += bmap[2];
 479                                 y -= bmap[3];
 480                                 /* 16bpix, 2-byte per pixel, x should *2 */
 481                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
 482                                         * lcd_line_length + (x + x_off) * 2);
 483                                 bmap += 4;
 484                                 break;
 485                         default:
 486                                 /* unencoded run */
 487                                 runlen = bmap[1];
 488                                 bmap += 2;
 489                                 if (y < height) {
 490                                         if (x < width) {
 491                                                 if (x + runlen > width)
 492                                                         cnt = width - x;
 493                                                 else
 494                                                         cnt = runlen;
 495                                                 draw_unencoded_bitmap(
 496                                                         (ushort **)&fb,
 497                                                         bmap, cmap, cnt);
 498                                         }
 499                                         x += runlen;
 500                                 }
 501                                 bmap += runlen;
 502                                 if (runlen & 1)
 503                                         bmap++;
 504                         }
 505                 } else {
 506                         /* encoded run */
 507                         if (y < height) {
 508                                 runlen = bmap[0];
 509                                 if (x < width) {
 510                                         /* aggregate the same code */
 511                                         while (bmap[0] == 0xff &&
 512                                                bmap[2] != BMP_RLE8_ESCAPE &&
 513                                                bmap[1] == bmap[3]) {
 514                                                 runlen += bmap[2];
 515                                                 bmap += 2;
 516                                         }
 517                                         if (x + runlen > width)
 518                                                 cnt = width - x;
 519                                         else
 520                                                 cnt = runlen;
 521                                         draw_encoded_bitmap((ushort **)&fb,
 522                                                 cmap[bmap[1]], cnt);
 523                                 }
 524                                 x += runlen;
 525                         }
 526                         bmap += 2;
 527                 }
 528         }
 529 }
 530 #endif
 531
 532 __weak void fb_put_byte(uchar **fb, uchar **from)
 533 {
 534         *(*fb)++ = *(*from)++;
 535 }
 536
 537 #if defined(CONFIG_BMP_16BPP)
 538 __weak void fb_put_word(uchar **fb, uchar **from)
 539 {
 540         *(*fb)++ = *(*from)++;
 541         *(*fb)++ = *(*from)++;
 542 }
 543 #endif /* CONFIG_BMP_16BPP */
 544
 545 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
 546 {
 547         int i;
 548         struct bmp_color_table_entry cte;
 549         ushort *cmap = configuration_get_cmap();
 550
 551         for (i = 0; i < colors; ++i) {
 552                 cte = bmp->color_table[i];
 553                 *cmap = (((cte.red)   << 8) & 0xf800) |
 554                         (((cte.green) << 3) & 0x07e0) |
 555                         (((cte.blue)  >> 3) & 0x001f);
 556                 cmap++;
 557         }
 558 }
 559
 560 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 561 {
 562         ushort *cmap_base = NULL;
 563         ushort i, j;
 564         uchar *fb;
 565         struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
 566         uchar *bmap;
 567         ushort padded_width;
 568         unsigned long width, height, byte_width;
 569         unsigned long pwidth = panel_info.vl_col;
 570         unsigned colors, bpix, bmp_bpix;
 571         int hdr_size;
 572         struct bmp_color_table_entry *palette;
 573
 574         if (!bmp || !(bmp->header.signature[0] == 'B' &&
 575                 bmp->header.signature[1] == 'M')) {
 576                 printf("Error: no valid bmp image at %lx\n", bmp_image);
 577
 578                 return 1;
 579         }
 580
 581         palette = bmp->color_table;
 582         width = get_unaligned_le32(&bmp->header.width);
 583         height = get_unaligned_le32(&bmp->header.height);
 584         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
 585         hdr_size = get_unaligned_le16(&bmp->header.size);
 586         debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
 587
 588         colors = 1 << bmp_bpix;
 589
 590         bpix = NBITS(panel_info.vl_bpix);
 591
 592         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
 593                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 594                         bpix, bmp_bpix);
 595
 596                 return 1;
 597         }
 598
 599         /*
 600          * We support displaying 8bpp BMPs on 16bpp LCDs
 601          * and displaying 24bpp BMPs on 32bpp LCDs
 602          * */
 603         if (bpix != bmp_bpix &&
 604             !(bmp_bpix == 8 && bpix == 16) &&
 605             !(bmp_bpix == 24 && bpix == 32)) {
 606                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 607                         bpix, get_unaligned_le16(&bmp->header.bit_count));
 608                 return 1;
 609         }
 610
 611         debug("Display-bmp: %d x %d  with %d colors, display %d\n",
 612               (int)width, (int)height, (int)colors, 1 << bpix);
 613
 614         if (bmp_bpix == 8)
 615                 lcd_set_cmap(bmp, colors);
 616
 617         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
 618
 619 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 620         splash_align_axis(&x, pwidth, width);
 621         splash_align_axis(&y, panel_info.vl_row, height);
 622 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 623
 624         if ((x + width) > pwidth)
 625                 width = pwidth - x;
 626         if ((y + height) > panel_info.vl_row)
 627                 height = panel_info.vl_row - y;
 628
 629         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 630         fb   = (uchar *)(lcd_base +
 631                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 632
 633         switch (bmp_bpix) {
 634         case 1:
 635         case 8: {
 636                 cmap_base = configuration_get_cmap();
 637 #ifdef CONFIG_LCD_BMP_RLE8
 638                 u32 compression = get_unaligned_le32(&bmp->header.compression);
 639                 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
 640                 if (compression == BMP_BI_RLE8) {
 641                         if (bpix != 16) {
 642                                 /* TODO implement render code for bpix != 16 */
 643                                 printf("Error: only support 16 bpix");
 644                                 return 1;
 645                         }
 646                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
 647                         break;
 648                 }
 649 #endif
 650
 651                 if (bpix != 16)
 652                         byte_width = width;
 653                 else
 654                         byte_width = width * 2;
 655
 656                 for (i = 0; i < height; ++i) {
 657                         WATCHDOG_RESET();
 658                         for (j = 0; j < width; j++) {
 659                                 if (bpix != 16) {
 660                                         fb_put_byte(&fb, &bmap);
 661                                 } else {
 662                                         struct bmp_color_table_entry *entry;
 663                                         uint val;
 664
 665                                         if (cmap_base) {
 666                                                 val = cmap_base[*bmap];
 667                                         } else {
 668                                                 entry = &palette[*bmap];
 669                                                 val = entry->blue >> 3 |
 670                                                         entry->green >> 2 << 5 |
 671                                                         entry->red >> 3 << 11;
 672                                         }
 673                                         *(uint16_t *)fb = val;
 674                                         bmap++;
 675                                         fb += sizeof(uint16_t) / sizeof(*fb);
 676                                 }
 677                         }
 678                         bmap += (padded_width - width);
 679                         fb -= byte_width + lcd_line_length;
 680                 }
 681                 break;
 682         }
 683 #if defined(CONFIG_BMP_16BPP)
 684         case 16:
 685                 for (i = 0; i < height; ++i) {
 686                         WATCHDOG_RESET();
 687                         for (j = 0; j < width; j++)
 688                                 fb_put_word(&fb, &bmap);
 689
 690                         bmap += (padded_width - width) * 2;
 691                         fb -= width * 2 + lcd_line_length;
 692                 }
 693                 break;
 694 #endif /* CONFIG_BMP_16BPP */
 695 #if defined(CONFIG_BMP_24BPP)
 696         case 24:
 697                 for (i = 0; i < height; ++i) {
 698                         for (j = 0; j < width; j++) {
 699                                 *(fb++) = *(bmap++);
 700                                 *(fb++) = *(bmap++);
 701                                 *(fb++) = *(bmap++);
 702                                 *(fb++) = 0;
 703                         }
 704                         fb -= lcd_line_length + width * (bpix / 8);
 705                 }
 706                 break;
 707 #endif /* CONFIG_BMP_24BPP */
 708 #if defined(CONFIG_BMP_32BPP)
 709         case 32:
 710                 for (i = 0; i < height; ++i) {
 711                         for (j = 0; j < width; j++) {
 712                                 *(fb++) = *(bmap++);
 713                                 *(fb++) = *(bmap++);
 714                                 *(fb++) = *(bmap++);
 715                                 *(fb++) = *(bmap++);
 716                         }
 717                         fb -= lcd_line_length + width * (bpix / 8);
 718                 }
 719                 break;
 720 #endif /* CONFIG_BMP_32BPP */
 721         default:
 722                 break;
 723         };
 724
 725         lcd_sync();
 726         return 0;
 727 }
 728 #endif
 729
 730 static void lcd_logo(void)
 731 {
 732         lcd_logo_plot(0, 0);
 733
 734 #ifdef CONFIG_LCD_INFO
 735         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
 736         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
 737         lcd_show_board_info();
 738 #endif /* CONFIG_LCD_INFO */
 739 }
 740
 741 #ifdef CONFIG_SPLASHIMAGE_GUARD
 742 static int on_splashimage(const char *name, const char *value, enum env_op op,
 743         int flags)
 744 {
 745         ulong addr;
 746         int aligned;
 747
 748         if (op == env_op_delete)
 749                 return 0;
 750
 751         addr = simple_strtoul(value, NULL, 16);
 752         /* See README.displaying-bmps */
 753         aligned = (addr % 4 == 2);
 754         if (!aligned) {
 755                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
 756                 return -1;
 757         }
 758
 759         return 0;
 760 }
 761
 762 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
 763 #endif
 764
 765 int lcd_get_pixel_width(void)
 766 {
 767         return panel_info.vl_col;
 768 }
 769
 770 int lcd_get_pixel_height(void)
 771 {
 772         return panel_info.vl_row;
 773 }