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 #if LCD_BPP == LCD_COLOR8
 111 typedef uchar pix_t;
 112 #elif LCD_BPP == LCD_COLOR16
 113 typedef ushort pix_t;
 114 #elif LCD_BPP == LCD_COLOR32
 115 typedef ulong pix_t;
 116 #else
 117 #error Unsupported pixelformat
 118 #endif
 119
 120 static void test_pattern(void)
 121 {
 122         ushort v_max  = panel_info.vl_row;
 123         ushort h_max  = panel_info.vl_col;
 124         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 125         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 126         ushort v, h;
 127         pix_t *pix = lcd_base;
 128
 129         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 130                 h_max, v_max, h_step, v_step);
 131
 132         /* WARNING: Code silently assumes 8bit/pixel */
 133         for (v = 0; v < v_max; ++v) {
 134                 uchar iy = v / v_step;
 135                 for (h = 0; h < h_max; ++h) {
 136                         uchar ix = N_BLK_HOR * iy + h / h_step;
 137                         *pix++ = test_colors[ix];
 138                 }
 139         }
 140 }
 141 #endif /* LCD_TEST_PATTERN */
 142
 143 /*
 144  * With most lcd drivers the line length is set up
 145  * by calculating it from panel_info parameters. Some
 146  * drivers need to calculate the line length differently,
 147  * so make the function weak to allow overriding it.
 148  */
 149 __weak int lcd_get_size(int *line_length)
 150 {
 151         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
 152         return *line_length * panel_info.vl_row;
 153 }
 154
 155 int drv_lcd_init(void)
 156 {
 157         struct stdio_dev lcddev;
 158         int rc;
 159
 160         lcd_base = map_sysmem(gd->fb_base, 0);
 161
 162         lcd_init(lcd_base);
 163
 164         /* Device initialization */
 165         memset(&lcddev, 0, sizeof(lcddev));
 166
 167         strcpy(lcddev.name, "lcd");
 168         lcddev.ext   = 0;                       /* No extensions */
 169         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 170         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
 171         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
 172
 173         rc = stdio_register(&lcddev);
 174
 175         return (rc == 0) ? 1 : rc;
 176 }
 177
 178 void lcd_clear(void)
 179 {
 180         short console_rows, console_cols;
 181         int bg_color;
 182 #if LCD_BPP == LCD_COLOR8
 183         /* Setting the palette */
 184         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
 185         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
 186         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
 187         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
 188         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
 189         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
 190         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
 191         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
 192         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
 193 #endif
 194
 195 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 196         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
 197         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
 198         bg_color = CONSOLE_COLOR_WHITE;
 199 #else
 200         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
 201         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
 202         bg_color = CONSOLE_COLOR_BLACK;
 203 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 204
 205 #ifdef  LCD_TEST_PATTERN
 206         test_pattern();
 207 #else
 208         /* set framebuffer to background color */
 209 #if (LCD_BPP != LCD_COLOR32)
 210         memset((char *)lcd_base, bg_color, lcd_line_length * panel_info.vl_row);
 211 #else
 212         u32 *ppix = lcd_base;
 213         u32 i;
 214         for (i = 0;
 215            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
 216            i++) {
 217                 *ppix++ = bg_color;
 218         }
 219 #endif
 220 #endif
 221         /* Paint the logo and retrieve LCD base address */
 222         debug("[LCD] Drawing the logo @ %p...\n", lcd_base);
 223 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 224         console_rows = (panel_info.vl_row - BMP_LOGO_HEIGHT);
 225         console_rows /= VIDEO_FONT_HEIGHT;
 226 #else
 227         console_rows = panel_info.vl_row / VIDEO_FONT_HEIGHT;
 228 #endif
 229         console_cols = panel_info.vl_col / VIDEO_FONT_WIDTH;
 230         lcd_init_console(lcd_base, console_rows, console_cols);
 231         lcd_init_console(lcd_logo(), console_rows, console_cols);
 232         lcd_sync();
 233 }
 234
 235 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
 236                         char *const argv[])
 237 {
 238         lcd_clear();
 239         return 0;
 240 }
 241 U_BOOT_CMD(cls, 1, 1, do_lcd_clear, "clear screen", "");
 242
 243 static int lcd_init(void *lcdbase)
 244 {
 245         debug("[LCD] Initializing %ux%ux%u LCD framebuffer at %p\n",
 246                 panel_info.vl_col, panel_info.vl_row, NBITS(panel_info.vl_bpix),
 247                 lcdbase);
 248
 249         lcd_ctrl_init(lcdbase);
 250
 251         /*
 252          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi) ignores
 253          * the 'lcdbase' argument and uses custom lcd base address
 254          * by setting up gd->fb_base. Check for this condition and fixup
 255          * 'lcd_base' address.
 256          */
 257         if (map_to_sysmem(lcdbase) != gd->fb_base)
 258                 lcd_base = map_sysmem(gd->fb_base, 0);
 259
 260         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
 261
 262         lcd_get_size(&lcd_line_length);
 263         lcd_is_enabled = 1;
 264         lcd_clear();
 265         lcd_enable();
 266
 267         /* Initialize the console */
 268         lcd_set_col(0);
 269 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 270         lcd_set_row(7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT);
 271 #else
 272         lcd_set_row(1); /* leave 1 blank line below logo */
 273 #endif
 274
 275         return 0;
 276 }
 277
 278 /*
 279  * This is called early in the system initialization to grab memory
 280  * for the LCD controller.
 281  * Returns new address for monitor, after reserving LCD buffer memory
 282  *
 283  * Note that this is running from ROM, so no write access to global data.
 284  */
 285 ulong lcd_setmem(ulong addr)
 286 {
 287         ulong size;
 288         int line_length;
 289
 290         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
 291                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
 292
 293         size = lcd_get_size(&line_length);
 294
 295         /* Round up to nearest full page, or MMU section if defined */
 296         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
 297         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
 298
 299         /* Allocate pages for the frame buffer. */
 300         addr -= size;
 301
 302         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
 303               size >> 10, addr);
 304
 305         return addr;
 306 }
 307
 308 static void lcd_setfgcolor(int color)
 309 {
 310         lcd_color_fg = color;
 311 }
 312
 313 int lcd_getfgcolor(void)
 314 {
 315         return lcd_color_fg;
 316 }
 317
 318 static void lcd_setbgcolor(int color)
 319 {
 320         lcd_color_bg = color;
 321 }
 322
 323 int lcd_getbgcolor(void)
 324 {
 325         return lcd_color_bg;
 326 }
 327
 328 #ifdef CONFIG_LCD_LOGO
 329 __weak void lcd_logo_set_cmap(void)
 330 {
 331         int i;
 332         ushort *cmap = configuration_get_cmap();
 333
 334         for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i)
 335                 *cmap++ = bmp_logo_palette[i];
 336 }
 337
 338 void lcd_logo_plot(int x, int y)
 339 {
 340         ushort i, j;
 341         uchar *bmap = &bmp_logo_bitmap[0];
 342         unsigned bpix = NBITS(panel_info.vl_bpix);
 343         uchar *fb = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
 344         ushort *fb16;
 345
 346         debug("Logo: width %d  height %d  colors %d\n",
 347               BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS);
 348
 349         if (bpix < 12) {
 350                 WATCHDOG_RESET();
 351                 lcd_logo_set_cmap();
 352                 WATCHDOG_RESET();
 353
 354                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 355                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
 356                         bmap += BMP_LOGO_WIDTH;
 357                         fb += panel_info.vl_col;
 358                 }
 359         } else if (NBITS(panel_info.vl_bpix) == 16) {
 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         } else { /* true color mode */
 374                 u16 col16;
 375                 u32 *fb32 = lcd_base + y * lcd_line_length + x;
 376
 377                 for (i = 0; i < BMP_LOGO_HEIGHT; i++) {
 378                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 379                                 col16 = bmp_logo_palette[bmap[j] - 16];
 380                                 fb32[j] =
 381                                         ((col16 & 0x000F) << 4) |
 382                                         ((col16 & 0x00F0) << 8) |
 383                                         ((col16 & 0x0F00) << 12);
 384                                 }
 385                         bmap += BMP_LOGO_WIDTH;
 386                         fb32 += panel_info.vl_col;
 387                 }
 388         }
 389
 390         WATCHDOG_RESET();
 391         lcd_sync();
 392 }
 393 #else
 394 static inline void lcd_logo_plot(int x, int y) {}
 395 #endif /* CONFIG_LCD_LOGO */
 396
 397 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 398 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 399 #define BMP_ALIGN_CENTER        0x7FFF
 400
 401 static void splash_align_axis(int *axis, unsigned long panel_size,
 402                                         unsigned long picture_size)
 403 {
 404         unsigned long panel_picture_delta = panel_size - picture_size;
 405         unsigned long axis_alignment;
 406
 407         if (*axis == BMP_ALIGN_CENTER)
 408                 axis_alignment = panel_picture_delta / 2;
 409         else if (*axis < 0)
 410                 axis_alignment = panel_picture_delta + *axis + 1;
 411         else
 412                 return;
 413
 414         *axis = max(0, (int)axis_alignment);
 415 }
 416 #endif
 417
 418 #ifdef CONFIG_LCD_BMP_RLE8
 419 #define BMP_RLE8_ESCAPE         0
 420 #define BMP_RLE8_EOL            0
 421 #define BMP_RLE8_EOBMP          1
 422 #define BMP_RLE8_DELTA          2
 423
 424 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
 425                                   int cnt)
 426 {
 427         while (cnt > 0) {
 428                 *(*fbp)++ = cmap[*bmap++];
 429                 cnt--;
 430         }
 431 }
 432
 433 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
 434 {
 435         ushort *fb = *fbp;
 436         int cnt_8copy = cnt >> 3;
 437
 438         cnt -= cnt_8copy << 3;
 439         while (cnt_8copy > 0) {
 440                 *fb++ = c;
 441                 *fb++ = c;
 442                 *fb++ = c;
 443                 *fb++ = c;
 444                 *fb++ = c;
 445                 *fb++ = c;
 446                 *fb++ = c;
 447                 *fb++ = c;
 448                 cnt_8copy--;
 449         }
 450         while (cnt > 0) {
 451                 *fb++ = c;
 452                 cnt--;
 453         }
 454         *fbp = fb;
 455 }
 456
 457 /*
 458  * Do not call this function directly, must be called from lcd_display_bitmap.
 459  */
 460 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
 461                                     int x_off, int y_off)
 462 {
 463         uchar *bmap;
 464         ulong width, height;
 465         ulong cnt, runlen;
 466         int x, y;
 467         int decode = 1;
 468
 469         width = get_unaligned_le32(&bmp->header.width);
 470         height = get_unaligned_le32(&bmp->header.height);
 471         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 472
 473         x = 0;
 474         y = height - 1;
 475
 476         while (decode) {
 477                 if (bmap[0] == BMP_RLE8_ESCAPE) {
 478                         switch (bmap[1]) {
 479                         case BMP_RLE8_EOL:
 480                                 /* end of line */
 481                                 bmap += 2;
 482                                 x = 0;
 483                                 y--;
 484                                 /* 16bpix, 2-byte per pixel, width should *2 */
 485                                 fb -= (width * 2 + lcd_line_length);
 486                                 break;
 487                         case BMP_RLE8_EOBMP:
 488                                 /* end of bitmap */
 489                                 decode = 0;
 490                                 break;
 491                         case BMP_RLE8_DELTA:
 492                                 /* delta run */
 493                                 x += bmap[2];
 494                                 y -= bmap[3];
 495                                 /* 16bpix, 2-byte per pixel, x should *2 */
 496                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
 497                                         * lcd_line_length + (x + x_off) * 2);
 498                                 bmap += 4;
 499                                 break;
 500                         default:
 501                                 /* unencoded run */
 502                                 runlen = bmap[1];
 503                                 bmap += 2;
 504                                 if (y < height) {
 505                                         if (x < width) {
 506                                                 if (x + runlen > width)
 507                                                         cnt = width - x;
 508                                                 else
 509                                                         cnt = runlen;
 510                                                 draw_unencoded_bitmap(
 511                                                         (ushort **)&fb,
 512                                                         bmap, cmap, cnt);
 513                                         }
 514                                         x += runlen;
 515                                 }
 516                                 bmap += runlen;
 517                                 if (runlen & 1)
 518                                         bmap++;
 519                         }
 520                 } else {
 521                         /* encoded run */
 522                         if (y < height) {
 523                                 runlen = bmap[0];
 524                                 if (x < width) {
 525                                         /* aggregate the same code */
 526                                         while (bmap[0] == 0xff &&
 527                                                bmap[2] != BMP_RLE8_ESCAPE &&
 528                                                bmap[1] == bmap[3]) {
 529                                                 runlen += bmap[2];
 530                                                 bmap += 2;
 531                                         }
 532                                         if (x + runlen > width)
 533                                                 cnt = width - x;
 534                                         else
 535                                                 cnt = runlen;
 536                                         draw_encoded_bitmap((ushort **)&fb,
 537                                                 cmap[bmap[1]], cnt);
 538                                 }
 539                                 x += runlen;
 540                         }
 541                         bmap += 2;
 542                 }
 543         }
 544 }
 545 #endif
 546
 547 __weak void fb_put_byte(uchar **fb, uchar **from)
 548 {
 549         *(*fb)++ = *(*from)++;
 550 }
 551
 552 #if defined(CONFIG_BMP_16BPP)
 553 __weak void fb_put_word(uchar **fb, uchar **from)
 554 {
 555         *(*fb)++ = *(*from)++;
 556         *(*fb)++ = *(*from)++;
 557 }
 558 #endif /* CONFIG_BMP_16BPP */
 559
 560 __weak void lcd_set_cmap(bmp_image_t *bmp, unsigned colors)
 561 {
 562         int i;
 563         bmp_color_table_entry_t cte;
 564         ushort *cmap = configuration_get_cmap();
 565
 566         for (i = 0; i < colors; ++i) {
 567                 cte = bmp->color_table[i];
 568                 *cmap = (((cte.red)   << 8) & 0xf800) |
 569                         (((cte.green) << 3) & 0x07e0) |
 570                         (((cte.blue)  >> 3) & 0x001f);
 571 #if defined(CONFIG_MPC823)
 572                 cmap--;
 573 #else
 574                 cmap++;
 575 #endif
 576         }
 577 }
 578
 579 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 580 {
 581         ushort *cmap_base = NULL;
 582         ushort i, j;
 583         uchar *fb;
 584         bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
 585         uchar *bmap;
 586         ushort padded_width;
 587         unsigned long width, height;
 588         unsigned long pwidth = panel_info.vl_col;
 589         unsigned long long colors;
 590         unsigned bpix, bmp_bpix;
 591         bmp_color_table_entry_t *cte;
 592
 593         if (!bmp || !(bmp->header.signature[0] == 'B' &&
 594                 bmp->header.signature[1] == 'M')) {
 595                 printf("Error: no valid bmp image at %lx\n", bmp_image);
 596
 597                 return 1;
 598         }
 599
 600         width = get_unaligned_le32(&bmp->header.width);
 601         height = get_unaligned_le32(&bmp->header.height);
 602         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
 603
 604         colors = 1 << bmp_bpix;
 605
 606         bpix = NBITS(panel_info.vl_bpix);
 607
 608         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
 609                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 610                         bpix, bmp_bpix);
 611
 612                 return 1;
 613         }
 614
 615         /*
 616          * We support displaying 8bpp BMPs on 16bpp LCDs
 617          * and displaying 24bpp BMPs on 32bpp LCDs
 618          * */
 619         if (bpix != bmp_bpix &&
 620             !(bmp_bpix == 8 && bpix == 16) &&
 621             !(bmp_bpix == 24 && bpix == 32)) {
 622                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 623                         bpix, get_unaligned_le16(&bmp->header.bit_count));
 624                 return 1;
 625         }
 626
 627         debug("Display-bmp: %lu x %lu  with %llu colors\n",
 628                 width, height, colors);
 629
 630         if (bmp_bpix == 8)
 631                 lcd_set_cmap(bmp, colors);
 632
 633         padded_width = ALIGN(width, 4);
 634
 635 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 636         splash_align_axis(&x, pwidth, width);
 637         splash_align_axis(&y, panel_info.vl_row, height);
 638 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 639         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 640
 641         if ((x + width) > pwidth)
 642                 width = pwidth - x;
 643         if ((y + height) > panel_info.vl_row) {
 644                 height = panel_info.vl_row - y;
 645                 bmap += (panel_info.vl_row - y) * padded_width;
 646         }
 647
 648         fb   = (uchar *)(lcd_base +
 649                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 650
 651         switch (bmp_bpix) {
 652         case 1:
 653         case 8: {
 654                 cmap_base = configuration_get_cmap();
 655 #ifdef CONFIG_LCD_BMP_RLE8
 656                 u32 compression = get_unaligned_le32(&bmp->header.compression);
 657                 if (compression == BMP_BI_RLE8) {
 658                         if (bpix != 16) {
 659                                 /* TODO implement render code for bpix != 16 */
 660                                 printf("Error: only support 16 bpix");
 661                                 return 1;
 662                         }
 663                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
 664                         break;
 665                 }
 666 #endif
 667
 668                 for (i = 0; i < height; ++i) {
 669                         WATCHDOG_RESET();
 670                         for (j = 0; j < width; j++) {
 671                                 if (bpix == 32) {
 672                                         int i = *bmap++;
 673
 674                                         fb[3] = 0; /* T */
 675                                         fb[0] = cte[i].blue;
 676                                         fb[1] = cte[i].green;
 677                                         fb[2] = cte[i].red;
 678                                         fb += sizeof(uint32_t) / sizeof(*fb);
 679                                 } else if (bpix == 16) {
 680                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 681                                         fb += sizeof(uint16_t) / sizeof(*fb);
 682                                 } else {
 683                                         FB_PUT_BYTE(fb, bmap);
 684                                 }
 685                         }
 686                         if (bpix > 8) {
 687                                 bmap += padded_width - width;
 688                                 fb   -= width * bpix / 8 + lcd_line_length;
 689                         } else {
 690                                 bmap += padded_width;
 691                                 fb -= lcd_line_length;
 692                         }
 693                 }
 694                 break;
 695         }
 696 #if defined(CONFIG_BMP_16BPP)
 697         case 16:
 698                 for (i = 0; i < height; ++i) {
 699                         WATCHDOG_RESET();
 700                         for (j = 0; j < width; j++)
 701                                 fb_put_word(&fb, &bmap);
 702
 703                         bmap += (padded_width - width) * 2;
 704                         fb -= width * 2 + lcd_line_length;
 705                 }
 706                 break;
 707 #endif /* CONFIG_BMP_16BPP */
 708 #if defined(CONFIG_BMP_24BMP)
 709         case 24:
 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++) = 0;
 716                         }
 717                         fb -= lcd_line_length + width * (bpix / 8);
 718                 }
 719                 break;
 720 #endif /* CONFIG_BMP_24BPP */
 721 #if defined(CONFIG_BMP_32BPP)
 722         case 32:
 723                 for (i = 0; i < height; ++i) {
 724                         WATCHDOG_RESET();
 725                         for (j = 0; j < width; j++) {
 726                                 fb[3] = *bmap++; /* T */
 727                                 fb[0] = *bmap++; /* B */
 728                                 fb[1] = *bmap++; /* G */
 729                                 fb[2] = *bmap++; /* R */
 730                                 fb += 4;
 731                         }
 732                         bmap += (padded_width - width) * 4;
 733                         fb -= lcd_line_length + width * (bpix / 8);
 734                 }
 735                 break;
 736 #endif /* CONFIG_BMP_32BPP */
 737         };
 738
 739         return 0;
 740 }
 741 #endif
 742
 743 static void *lcd_logo(void)
 744 {
 745 #ifdef CONFIG_SPLASH_SCREEN
 746         char *s;
 747         ulong addr;
 748         static int do_splash = 1;
 749
 750         if (do_splash && (s = getenv("splashimage")) != NULL) {
 751                 int x = 0, y = 0;
 752                 char *end;
 753
 754                 do_splash = 0;
 755
 756                 if (splash_screen_prepare())
 757                         return (void *)lcd_base;
 758
 759                 addr = simple_strtoul (s, &end, 16);
 760                 if (addr == 0 || *end != '\0')
 761                         return lcd_base;
 762
 763                 splash_get_pos(&x, &y);
 764
 765                 if (bmp_display(addr, x, y) == 0)
 766                         return (void *)lcd_base;
 767         }
 768 #endif /* CONFIG_SPLASH_SCREEN */
 769
 770         lcd_logo_plot(0, 0);
 771
 772 #ifdef CONFIG_LCD_INFO
 773         lcd_set_col(LCD_INFO_X / VIDEO_FONT_WIDTH);
 774         lcd_set_row(LCD_INFO_Y / VIDEO_FONT_HEIGHT);
 775         lcd_show_board_info();
 776 #endif /* CONFIG_LCD_INFO */
 777
 778 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 779         return lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
 780 #else
 781         return lcd_base;
 782 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 783 }
 784
 785 #ifdef CONFIG_SPLASHIMAGE_GUARD
 786 static int on_splashimage(const char *name, const char *value, enum env_op op,
 787         int flags)
 788 {
 789         ulong addr;
 790         int aligned;
 791
 792         if (op == env_op_delete)
 793                 return 0;
 794
 795         addr = simple_strtoul(value, NULL, 16);
 796         /* See README.displaying-bmps */
 797         aligned = (addr % 4 == 2);
 798         if (!aligned) {
 799                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
 800                 return -1;
 801         }
 802
 803         return 0;
 804 }
 805
 806 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
 807 #endif
 808
 809 int lcd_get_pixel_width(void)
 810 {
 811         return panel_info.vl_col;
 812 }
 813
 814 int lcd_get_pixel_height(void)
 815 {
 816         return panel_info.vl_row;
 817 }