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 do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
 246                         char *const argv[])
 247 {
 248         lcd_clear();
 249         return 0;
 250 }
 251 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", "");
 252
 253 static int lcd_init(void *lcdbase)
 254 {
 255         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 256         lcd_ctrl_init(lcdbase);
 257
 258         /*
 259          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
 260          * the 'lcdbase' argument and uses custom lcd base address
 261          * by setting up gd->fb_base. Check for this condition and fixup
 262          * 'lcd_base' address.
 263          */
 264         if (map_to_sysmem(lcdbase) != gd->fb_base)
 265                 lcd_base = map_sysmem(gd->fb_base, 0);
 266
 267         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
 268
 269         lcd_get_size(&lcd_line_length);
 270         lcd_is_enabled = 1;
 271         lcd_clear();
 272         lcd_enable();
 273
 274         /* Initialize the console */
 275         lcd_set_col(0);
 276 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 277         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
 278 #else
 279         lcd_set_row(1); /* leave 1 blank line below logo */
 280 #endif
 281
 282         return 0;
 283 }
 284
 285 /*
 286  * This is called early in the system initialization to grab memory
 287  * for the LCD controller.
 288  * Returns new address for monitor, after reserving LCD buffer memory
 289  *
 290  * Note that this is running from ROM, so no write access to global data.
 291  */
 292 ulong lcd_setmem(ulong addr)
 293 {
 294         ulong size;
 295         int line_length;
 296
 297         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
 298                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
 299
 300         size = lcd_get_size(&line_length);
 301
 302         /* Round up to nearest full page, or MMU section if defined */
 303         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
 304         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
 305
 306         /* Allocate pages for the frame buffer. */
 307         addr -= size;
 308
 309         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
 310               size >> 10, addr);
 311
 312         return addr;
 313 }
 314
 315 static void lcd_setfgcolor(int color)
 316 {
 317         lcd_color_fg = color;
 318 }
 319
 320 int lcd_getfgcolor(void)
 321 {
 322         return lcd_color_fg;
 323 }
 324
 325 static void lcd_setbgcolor(int color)
 326 {
 327         lcd_color_bg = color;
 328 }
 329
 330 int lcd_getbgcolor(void)
 331 {
 332         return lcd_color_bg;
 333 }
 334
 335 #ifdef CONFIG_LCD_LOGO
 336 __weak void lcd_logo_set_cmap(void)
 337 {
 338         int i;
 339         ushort *cmap = configuration_get_cmap();
 340
 341         for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
 342                 *cmap++ = bmp_logo_palette[i];
 343 }
 344
 345 void lcd_logo_plot(int x, int y)
 346 {
 347         ushort i, j;
 348         uchar *bmap = &bmp_logo_bitmap[0];
 349         unsigned bpix = NBITS(panel_info.vl_bpix);
 350         uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
 351         ushort *fb16;
 352
 353         debug("Logo: width %d  height %d  colors %d\n",
 354               BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
 355
 356         if (bpix < 12) {
 357                 WATCHDOG_RESET();
 358                 lcd_logo_set_cmap();
 359                 WATCHDOG_RESET();
 360
 361                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 362                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
 363                         bmap += BMP_LOGO_WIDTH;
 364                         fb += panel_info.vl_col;
 365                 }
 366         }
 367         else { /* true color mode */
 368                 u16 col16;
 369                 fb16 = (ushort *)fb;
 370                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 371                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 372                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 373                                 fb16[j] =
 374                                         ((col16 & 0x000F) << 1) |
 375                                         ((col16 & 0x00F0) << 3) |
 376                                         ((col16 & 0x0F00) << 4);
 377                                 }
 378                         bmap += BMP_LOGO_WIDTH;
 379                         fb16 += panel_info.vl_col;
 380                 }
 381         }
 382
 383         WATCHDOG_RESET();
 384         lcd_sync();
 385 }
 386 #else
 387 static inline void lcd_logo_plot(int x, int y) {}
 388 #endif /* CONFIG_LCD_LOGO */
 389
 390 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 391 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 392 #define BMP_ALIGN_CENTER        0x7FFF
 393
 394 static void splash_align_axis(int *axis, unsigned long panel_size,
 395                                         unsigned long picture_size)
 396 {
 397         unsigned long panel_picture_delta = panel_size - picture_size;
 398         unsigned long axis_alignment;
 399
 400         if (*axis == BMP_ALIGN_CENTER)
 401                 axis_alignment = panel_picture_delta / 2;
 402         else if (*axis < 0)
 403                 axis_alignment = panel_picture_delta + *axis + 1;
 404         else
 405                 return;
 406
 407         *axis = max(0, (int)axis_alignment);
 408 }
 409 #endif
 410
 411 #ifdef CONFIG_LCD_BMP_RLE8
 412 #define BMP_RLE8_ESCAPE         0
 413 #define BMP_RLE8_EOL            0
 414 #define BMP_RLE8_EOBMP          1
 415 #define BMP_RLE8_DELTA          2
 416
 417 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
 418                                   int cnt)
 419 {
 420         while (cnt > 0) {
 421                 *(*fbp)++ = cmap[*bmap++];
 422                 cnt--;
 423         }
 424 }
 425
 426 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
 427 {
 428         ushort *fb = *fbp;
 429         int cnt_8copy = cnt >> 3;
 430
 431         cnt -= cnt_8copy << 3;
 432         while (cnt_8copy > 0) {
 433                 *fb++ = c;
 434                 *fb++ = c;
 435                 *fb++ = c;
 436                 *fb++ = c;
 437                 *fb++ = c;
 438                 *fb++ = c;
 439                 *fb++ = c;
 440                 *fb++ = c;
 441                 cnt_8copy--;
 442         }
 443         while (cnt > 0) {
 444                 *fb++ = c;
 445                 cnt--;
 446         }
 447         *fbp = fb;
 448 }
 449
 450 /*
 451  * Do not call this function directly, must be called from lcd_display_bitmap.
 452  */
 453 static void lcd_display_rle8_bitmap(struct bmp_image *bmp, ushort *cmap,
 454                                     uchar *fb, int x_off, int y_off)
 455 {
 456         uchar *bmap;
 457         ulong width, height;
 458         ulong cnt, runlen;
 459         int x, y;
 460         int decode = 1;
 461
 462         width = get_unaligned_le32(&bmp->header.width);
 463         height = get_unaligned_le32(&bmp->header.height);
 464         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 465
 466         x = 0;
 467         y = height - 1;
 468
 469         while (decode) {
 470                 if (bmap[0] == BMP_RLE8_ESCAPE) {
 471                         switch (bmap[1]) {
 472                         case BMP_RLE8_EOL:
 473                                 /* end of line */
 474                                 bmap += 2;
 475                                 x = 0;
 476                                 y--;
 477                                 /* 16bpix, 2-byte per pixel, width should *2 */
 478                                 fb -= (width * 2 + lcd_line_length);
 479                                 break;
 480                         case BMP_RLE8_EOBMP:
 481                                 /* end of bitmap */
 482                                 decode = 0;
 483                                 break;
 484                         case BMP_RLE8_DELTA:
 485                                 /* delta run */
 486                                 x += bmap[2];
 487                                 y -= bmap[3];
 488                                 /* 16bpix, 2-byte per pixel, x should *2 */
 489                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
 490                                         * lcd_line_length + (x + x_off) * 2);
 491                                 bmap += 4;
 492                                 break;
 493                         default:
 494                                 /* unencoded run */
 495                                 runlen = bmap[1];
 496                                 bmap += 2;
 497                                 if (y < height) {
 498                                         if (x < width) {
 499                                                 if (x + runlen > width)
 500                                                         cnt = width - x;
 501                                                 else
 502                                                         cnt = runlen;
 503                                                 draw_unencoded_bitmap(
 504                                                         (ushort **)&fb,
 505                                                         bmap, cmap, cnt);
 506                                         }
 507                                         x += runlen;
 508                                 }
 509                                 bmap += runlen;
 510                                 if (runlen & 1)
 511                                         bmap++;
 512                         }
 513                 } else {
 514                         /* encoded run */
 515                         if (y < height) {
 516                                 runlen = bmap[0];
 517                                 if (x < width) {
 518                                         /* aggregate the same code */
 519                                         while (bmap[0] == 0xff &&
 520                                                bmap[2] != BMP_RLE8_ESCAPE &&
 521                                                bmap[1] == bmap[3]) {
 522                                                 runlen += bmap[2];
 523                                                 bmap += 2;
 524                                         }
 525                                         if (x + runlen > width)
 526                                                 cnt = width - x;
 527                                         else
 528                                                 cnt = runlen;
 529                                         draw_encoded_bitmap((ushort **)&fb,
 530                                                 cmap[bmap[1]], cnt);
 531                                 }
 532                                 x += runlen;
 533                         }
 534                         bmap += 2;
 535                 }
 536         }
 537 }
 538 #endif
 539
 540 __weak void fb_put_byte(uchar **fb, uchar **from)
 541 {
 542         *(*fb)++ = *(*from)++;
 543 }
 544
 545 #if defined(CONFIG_BMP_16BPP)
 546 __weak void fb_put_word(uchar **fb, uchar **from)
 547 {
 548         *(*fb)++ = *(*from)++;
 549         *(*fb)++ = *(*from)++;
 550 }
 551 #endif /* CONFIG_BMP_16BPP */
 552
 553 __weak void lcd_set_cmap(struct bmp_image *bmp, unsigned colors)
 554 {
 555         int i;
 556         struct bmp_color_table_entry cte;
 557         ushort *cmap = configuration_get_cmap();
 558
 559         for (i = 0; i < colors; ++i) {
 560                 cte = bmp->color_table[i];
 561                 *cmap = (((cte.red)   << 8) & 0xf800) |
 562                         (((cte.green) << 3) & 0x07e0) |
 563                         (((cte.blue)  >> 3) & 0x001f);
 564                 cmap++;
 565         }
 566 }
 567
 568 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 569 {
 570         ushort *cmap_base = NULL;
 571         ushort i, j;
 572         uchar *fb;
 573         struct bmp_image *bmp = (struct bmp_image *)map_sysmem(bmp_image, 0);
 574         uchar *bmap;
 575         ushort padded_width;
 576         unsigned long width, height, byte_width;
 577         unsigned long pwidth = panel_info.vl_col;
 578         unsigned colors, bpix, bmp_bpix;
 579         int hdr_size;
 580         struct bmp_color_table_entry *palette;
 581
 582         if (!bmp || !(bmp->header.signature[0] == 'B' &&
 583                 bmp->header.signature[1] == 'M')) {
 584                 printf("Error: no valid bmp image at %lx\n", bmp_image);
 585
 586                 return 1;
 587         }
 588
 589         palette = bmp->color_table;
 590         width = get_unaligned_le32(&bmp->header.width);
 591         height = get_unaligned_le32(&bmp->header.height);
 592         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
 593         hdr_size = get_unaligned_le16(&bmp->header.size);
 594         debug("hdr_size=%d, bmp_bpix=%d\n", hdr_size, bmp_bpix);
 595
 596         colors = 1 << bmp_bpix;
 597
 598         bpix = NBITS(panel_info.vl_bpix);
 599
 600         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
 601                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 602                         bpix, bmp_bpix);
 603
 604                 return 1;
 605         }
 606
 607         /*
 608          * We support displaying 8bpp BMPs on 16bpp LCDs
 609          * and displaying 24bpp BMPs on 32bpp LCDs
 610          * */
 611         if (bpix != bmp_bpix &&
 612             !(bmp_bpix == 8 && bpix == 16) &&
 613             !(bmp_bpix == 24 && bpix == 32)) {
 614                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 615                         bpix, get_unaligned_le16(&bmp->header.bit_count));
 616                 return 1;
 617         }
 618
 619         debug("Display-bmp: %d x %d  with %d colors, display %d\n",
 620               (int)width, (int)height, (int)colors, 1 << bpix);
 621
 622         if (bmp_bpix == 8)
 623                 lcd_set_cmap(bmp, colors);
 624
 625         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
 626
 627 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 628         splash_align_axis(&x, pwidth, width);
 629         splash_align_axis(&y, panel_info.vl_row, height);
 630 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 631
 632         if ((x + width) > pwidth)
 633                 width = pwidth - x;
 634         if ((y + height) > panel_info.vl_row)
 635                 height = panel_info.vl_row - y;
 636
 637         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 638         fb   = (uchar *)(lcd_base +
 639                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 640
 641         switch (bmp_bpix) {
 642         case 1:
 643         case 8: {
 644                 cmap_base = configuration_get_cmap();
 645 #ifdef CONFIG_LCD_BMP_RLE8
 646                 u32 compression = get_unaligned_le32(&bmp->header.compression);
 647                 debug("compressed %d %d\n", compression, BMP_BI_RLE8);
 648                 if (compression == BMP_BI_RLE8) {
 649                         if (bpix != 16) {
 650                                 /* TODO implement render code for bpix != 16 */
 651                                 printf("Error: only support 16 bpix");
 652                                 return 1;
 653                         }
 654                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
 655                         break;
 656                 }
 657 #endif
 658
 659                 if (bpix != 16)
 660                         byte_width = width;
 661                 else
 662                         byte_width = width * 2;
 663
 664                 for (i = 0; i < height; ++i) {
 665                         WATCHDOG_RESET();
 666                         for (j = 0; j < width; j++) {
 667                                 if (bpix != 16) {
 668                                         fb_put_byte(&fb, &bmap);
 669                                 } else {
 670                                         struct bmp_color_table_entry *entry;
 671                                         uint val;
 672
 673                                         if (cmap_base) {
 674                                                 val = cmap_base[*bmap];
 675                                         } else {
 676                                                 entry = &palette[*bmap];
 677                                                 val = entry->blue >> 3 |
 678                                                         entry->green >> 2 << 5 |
 679                                                         entry->red >> 3 << 11;
 680                                         }
 681                                         *(uint16_t *)fb = val;
 682                                         bmap++;
 683                                         fb += sizeof(uint16_t) / sizeof(*fb);
 684                                 }
 685                         }
 686                         bmap += (padded_width - width);
 687                         fb -= byte_width + lcd_line_length;
 688                 }
 689                 break;
 690         }
 691 #if defined(CONFIG_BMP_16BPP)
 692         case 16:
 693                 for (i = 0; i < height; ++i) {
 694                         WATCHDOG_RESET();
 695                         for (j = 0; j < width; j++)
 696                                 fb_put_word(&fb, &bmap);
 697
 698                         bmap += (padded_width - width) * 2;
 699                         fb -= width * 2 + lcd_line_length;
 700                 }
 701                 break;
 702 #endif /* CONFIG_BMP_16BPP */
 703 #if defined(CONFIG_BMP_24BPP)
 704         case 24:
 705                 for (i = 0; i < height; ++i) {
 706                         for (j = 0; j < width; j++) {
 707                                 *(fb++) = *(bmap++);
 708                                 *(fb++) = *(bmap++);
 709                                 *(fb++) = *(bmap++);
 710                                 *(fb++) = 0;
 711                         }
 712                         fb -= lcd_line_length + width * (bpix / 8);
 713                 }
 714                 break;
 715 #endif /* CONFIG_BMP_24BPP */
 716 #if defined(CONFIG_BMP_32BPP)
 717         case 32:
 718                 for (i = 0; i < height; ++i) {
 719                         for (j = 0; j < width; j++) {
 720                                 *(fb++) = *(bmap++);
 721                                 *(fb++) = *(bmap++);
 722                                 *(fb++) = *(bmap++);
 723                                 *(fb++) = *(bmap++);
 724                         }
 725                         fb -= lcd_line_length + width * (bpix / 8);
 726                 }
 727                 break;
 728 #endif /* CONFIG_BMP_32BPP */
 729         default:
 730                 break;
 731         };
 732
 733         lcd_sync();
 734         return 0;
 735 }
 736 #endif
 737
 738 static void lcd_logo(void)
 739 {
 740         lcd_logo_plot(0, 0);
 741
 742 #ifdef CONFIG_LCD_INFO
 743         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
 744         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
 745         lcd_show_board_info();
 746 #endif /* CONFIG_LCD_INFO */
 747 }
 748
 749 #ifdef CONFIG_SPLASHIMAGE_GUARD
 750 static int on_splashimage(const char *name, const char *value, enum env_op op,
 751         int flags)
 752 {
 753         ulong addr;
 754         int aligned;
 755
 756         if (op == env_op_delete)
 757                 return 0;
 758
 759         addr = simple_strtoul(value, NULL, 16);
 760         /* See README.displaying-bmps */
 761         aligned = (addr % 4 == 2);
 762         if (!aligned) {
 763                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
 764                 return -1;
 765         }
 766
 767         return 0;
 768 }
 769
 770 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
 771 #endif
 772
 773 int lcd_get_pixel_width(void)
 774 {
 775         return panel_info.vl_col;
 776 }
 777
 778 int lcd_get_pixel_height(void)
 779 {
 780         return panel_info.vl_row;
 781 }