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