common/lcd.c

   1 /*
   2  * Common LCD routines for supported CPUs
   3  *
   4  * (C) Copyright 2001-2002
   5  * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 /************************************************************************/
  27 /* ** HEADER FILES                                                      */
  28 /************************************************************************/
  29
  30 /* #define DEBUG */
  31
  32 #include <config.h>
  33 #include <common.h>
  34 #include <command.h>
  35 #include <stdarg.h>
  36 #include <linux/types.h>
  37 #include <stdio_dev.h>
  38 #include <malloc.h>
  39 #if defined(CONFIG_POST)
  40 #include <post.h>
  41 #endif
  42 #include <lcd.h>
  43 #include <watchdog.h>
  44
  45 #if defined(CONFIG_PXA250)
  46 #include <asm/byteorder.h>
  47 #endif
  48
  49 #if defined(CONFIG_MPC823)
  50 #include <lcdvideo.h>
  51 #endif
  52
  53 #if defined(CONFIG_ATMEL_LCD)
  54 #include <atmel_lcdc.h>
  55 #endif
  56
  57 /************************************************************************/
  58 /* ** FONT DATA                                                         */
  59 /************************************************************************/
  60 #include <video_font.h>         /* Get font data, width and height      */
  61
  62 /************************************************************************/
  63 /* ** LOGO DATA                                                         */
  64 /************************************************************************/
  65 #ifdef CONFIG_LCD_LOGO
  66 # include <bmp_logo.h>          /* Get logo data, width and height      */
  67 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
  68 #  error Default Color Map overlaps with Logo Color Map
  69 # endif
  70 #endif
  71
  72 DECLARE_GLOBAL_DATA_PTR;
  73
  74 ulong lcd_setmem (ulong addr);
  75
  76 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  77 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  78 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  79
  80 static int lcd_init (void *lcdbase);
  81
  82 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  83 static void *lcd_logo (void);
  84
  85 static int lcd_getbgcolor (void);
  86 static void lcd_setfgcolor (int color);
  87 static void lcd_setbgcolor (int color);
  88
  89 char lcd_is_enabled = 0;
  90
  91 #ifdef  NOT_USED_SO_FAR
  92 static void lcd_getcolreg (ushort regno,
  93                                 ushort *red, ushort *green, ushort *blue);
  94 static int lcd_getfgcolor (void);
  95 #endif  /* NOT_USED_SO_FAR */
  96
  97 /************************************************************************/
  98
  99 /*----------------------------------------------------------------------*/
 100
 101 static void console_scrollup (void)
 102 {
 103         /* Copy up rows ignoring the first one */
 104         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 105
 106         /* Clear the last one */
 107         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 108 }
 109
 110 /*----------------------------------------------------------------------*/
 111
 112 static inline void console_back (void)
 113 {
 114         if (--console_col < 0) {
 115                 console_col = CONSOLE_COLS-1 ;
 116                 if (--console_row < 0) {
 117                         console_row = 0;
 118                 }
 119         }
 120
 121         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 122                      console_row * VIDEO_FONT_HEIGHT,
 123                      ' ');
 124 }
 125
 126 /*----------------------------------------------------------------------*/
 127
 128 static inline void console_newline (void)
 129 {
 130         ++console_row;
 131         console_col = 0;
 132
 133         /* Check if we need to scroll the terminal */
 134         if (console_row >= CONSOLE_ROWS) {
 135                 /* Scroll everything up */
 136                 console_scrollup () ;
 137                 --console_row;
 138         }
 139 }
 140
 141 /*----------------------------------------------------------------------*/
 142
 143 void lcd_putc (const char c)
 144 {
 145         if (!lcd_is_enabled) {
 146                 serial_putc(c);
 147                 return;
 148         }
 149
 150         switch (c) {
 151         case '\r':      console_col = 0;
 152                         return;
 153
 154         case '\n':      console_newline();
 155                         return;
 156
 157         case '\t':      /* Tab (8 chars alignment) */
 158                         console_col +=  8;
 159                         console_col &= ~7;
 160
 161                         if (console_col >= CONSOLE_COLS) {
 162                                 console_newline();
 163                         }
 164                         return;
 165
 166         case '\b':      console_back();
 167                         return;
 168
 169         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 170                                      console_row * VIDEO_FONT_HEIGHT,
 171                                      c);
 172                         if (++console_col >= CONSOLE_COLS) {
 173                                 console_newline();
 174                         }
 175                         return;
 176         }
 177         /* NOTREACHED */
 178 }
 179
 180 /*----------------------------------------------------------------------*/
 181
 182 void lcd_puts (const char *s)
 183 {
 184         if (!lcd_is_enabled) {
 185                 serial_puts (s);
 186                 return;
 187         }
 188
 189         while (*s) {
 190                 lcd_putc (*s++);
 191         }
 192 }
 193
 194 /*----------------------------------------------------------------------*/
 195
 196 void lcd_printf(const char *fmt, ...)
 197 {
 198         va_list args;
 199         char buf[CONFIG_SYS_PBSIZE];
 200
 201         va_start(args, fmt);
 202         vsprintf(buf, fmt, args);
 203         va_end(args);
 204
 205         lcd_puts(buf);
 206 }
 207
 208 /************************************************************************/
 209 /* ** Low-Level Graphics Routines                                       */
 210 /************************************************************************/
 211
 212 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 213 {
 214         uchar *dest;
 215         ushort off, row;
 216
 217         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 218         off  = x * (1 << LCD_BPP) % 8;
 219
 220         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 221                 uchar *s = str;
 222                 uchar *d = dest;
 223                 int i;
 224
 225 #if LCD_BPP == LCD_MONOCHROME
 226                 uchar rest = *d & -(1 << (8-off));
 227                 uchar sym;
 228 #endif
 229                 for (i=0; i<count; ++i) {
 230                         uchar c, bits;
 231
 232                         c = *s++;
 233                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 234
 235 #if LCD_BPP == LCD_MONOCHROME
 236                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 237                                (COLOR_MASK(lcd_color_bg) & ~bits);
 238
 239                         *d++ = rest | (sym >> off);
 240                         rest = sym << (8-off);
 241 #elif LCD_BPP == LCD_COLOR8
 242                         for (c=0; c<8; ++c) {
 243                                 *d++ = (bits & 0x80) ?
 244                                                 lcd_color_fg : lcd_color_bg;
 245                                 bits <<= 1;
 246                         }
 247 #elif LCD_BPP == LCD_COLOR16
 248                         for (c=0; c<16; ++c) {
 249                                 *d++ = (bits & 0x80) ?
 250                                                 lcd_color_fg : lcd_color_bg;
 251                                 bits <<= 1;
 252                         }
 253 #endif
 254                 }
 255 #if LCD_BPP == LCD_MONOCHROME
 256                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 257 #endif
 258         }
 259 }
 260
 261 /*----------------------------------------------------------------------*/
 262
 263 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 264 {
 265 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 266         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 267 #else
 268         lcd_drawchars (x, y, s, strlen ((char *)s));
 269 #endif
 270 }
 271
 272 /*----------------------------------------------------------------------*/
 273
 274 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 275 {
 276 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 277         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 278 #else
 279         lcd_drawchars (x, y, &c, 1);
 280 #endif
 281 }
 282
 283 /************************************************************************/
 284 /**  Small utility to check that you got the colours right              */
 285 /************************************************************************/
 286 #ifdef LCD_TEST_PATTERN
 287
 288 #define N_BLK_VERT      2
 289 #define N_BLK_HOR       3
 290
 291 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 292         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 293         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 294 };
 295
 296 static void test_pattern (void)
 297 {
 298         ushort v_max  = panel_info.vl_row;
 299         ushort h_max  = panel_info.vl_col;
 300         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 301         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 302         ushort v, h;
 303         uchar *pix = (uchar *)lcd_base;
 304
 305         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 306                 h_max, v_max, h_step, v_step);
 307
 308         /* WARNING: Code silently assumes 8bit/pixel */
 309         for (v=0; v<v_max; ++v) {
 310                 uchar iy = v / v_step;
 311                 for (h=0; h<h_max; ++h) {
 312                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 313                         *pix++ = test_colors[ix];
 314                 }
 315         }
 316 }
 317 #endif /* LCD_TEST_PATTERN */
 318
 319
 320 /************************************************************************/
 321 /* ** GENERIC Initialization Routines                                   */
 322 /************************************************************************/
 323 int drv_lcd_init_resume (void)
 324 {
 325         lcd_base = (void *)(gd->fb_base);
 326
 327         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 328
 329         lcd_init (lcd_base);            /* LCD initialization */
 330
 331         return 0;
 332 }
 333
 334 int drv_lcd_init (void)
 335 {
 336         struct stdio_dev lcddev;
 337         int rc;
 338
 339         lcd_base = (void *)(gd->fb_base);
 340
 341         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 342
 343         lcd_init (lcd_base);            /* LCD initialization */
 344
 345         /* Device initialization */
 346         memset (&lcddev, 0, sizeof (lcddev));
 347
 348         strcpy (lcddev.name, "lcd");
 349         lcddev.ext   = 0;                       /* No extensions */
 350         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 351         lcddev.putc  = lcd_putc;                /* 'putc' function */
 352         lcddev.puts  = lcd_puts;                /* 'puts' function */
 353
 354         rc = stdio_register (&lcddev);
 355
 356         return (rc == 0) ? 1 : rc;
 357 }
 358
 359 /*----------------------------------------------------------------------*/
 360 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 361 {
 362 #if LCD_BPP == LCD_MONOCHROME
 363         /* Setting the palette */
 364         lcd_initcolregs();
 365
 366 #elif LCD_BPP == LCD_COLOR8
 367         /* Setting the palette */
 368         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 369         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 370         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 371         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 372         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 373         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 374         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 375         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 376         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 377 #endif
 378
 379 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 380         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 381         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 382 #else
 383         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 384         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 385 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 386
 387 #ifdef  LCD_TEST_PATTERN
 388         test_pattern();
 389 #else
 390         /* set framebuffer to background color */
 391         memset ((char *)lcd_base,
 392                 COLOR_MASK(lcd_getbgcolor()),
 393                 lcd_line_length*panel_info.vl_row);
 394 #endif
 395         /* Paint the logo and retrieve LCD base address */
 396         debug ("[LCD] Drawing the logo...\n");
 397         lcd_console_address = lcd_logo ();
 398
 399         console_col = 0;
 400         console_row = 0;
 401
 402         return (0);
 403 }
 404
 405 U_BOOT_CMD(
 406         cls,    1,      1,      lcd_clear,
 407         "clear screen",
 408         ""
 409 );
 410
 411 /*----------------------------------------------------------------------*/
 412
 413 static int lcd_init (void *lcdbase)
 414 {
 415         /* Initialize the lcd controller */
 416         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 417
 418         lcd_ctrl_init (lcdbase);
 419         lcd_is_enabled = 1;
 420         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 421         lcd_enable ();
 422
 423         /* Initialize the console */
 424         console_col = 0;
 425 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 426         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 427 #else
 428         console_row = 1;        /* leave 1 blank line below logo */
 429 #endif
 430
 431         return 0;
 432 }
 433
 434
 435 /************************************************************************/
 436 /* ** ROM capable initialization part - needed to reserve FB memory     */
 437 /************************************************************************/
 438 /*
 439  * This is called early in the system initialization to grab memory
 440  * for the LCD controller.
 441  * Returns new address for monitor, after reserving LCD buffer memory
 442  *
 443  * Note that this is running from ROM, so no write access to global data.
 444  */
 445 ulong lcd_setmem (ulong addr)
 446 {
 447         ulong size;
 448         int line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 449
 450         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 451                 panel_info.vl_col, panel_info.vl_row, (panel_info.vl_bpix) );
 452
 453         size = line_length * panel_info.vl_row;
 454
 455         /* Round up to nearest full page */
 456         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 457
 458         /* Allocate pages for the frame buffer. */
 459         addr -= size;
 460
 461         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 462
 463         return (addr);
 464 }
 465
 466 /*----------------------------------------------------------------------*/
 467
 468 static void lcd_setfgcolor (int color)
 469 {
 470         lcd_color_fg = color;
 471 }
 472
 473 /*----------------------------------------------------------------------*/
 474
 475 static void lcd_setbgcolor (int color)
 476 {
 477         lcd_color_bg = color;
 478 }
 479
 480 /*----------------------------------------------------------------------*/
 481
 482 #ifdef  NOT_USED_SO_FAR
 483 static int lcd_getfgcolor (void)
 484 {
 485         return lcd_color_fg;
 486 }
 487 #endif  /* NOT_USED_SO_FAR */
 488
 489 /*----------------------------------------------------------------------*/
 490
 491 static int lcd_getbgcolor (void)
 492 {
 493         return lcd_color_bg;
 494 }
 495
 496 /*----------------------------------------------------------------------*/
 497
 498 /************************************************************************/
 499 /* ** Chipset depending Bitmap / Logo stuff...                          */
 500 /************************************************************************/
 501 #ifdef CONFIG_LCD_LOGO
 502 void bitmap_plot (int x, int y)
 503 {
 504 #ifdef CONFIG_ATMEL_LCD
 505         uint *cmap;
 506 #else
 507         ushort *cmap;
 508 #endif
 509         ushort i, j;
 510         uchar *bmap;
 511         uchar *fb;
 512         ushort *fb16;
 513 #if defined(CONFIG_PXA250)
 514         struct pxafb_info *fbi = &panel_info.pxa;
 515 #elif defined(CONFIG_MPC823)
 516         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 517         volatile cpm8xx_t *cp = &(immr->im_cpm);
 518 #endif
 519
 520         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 521                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 522                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 523
 524         bmap = &bmp_logo_bitmap[0];
 525         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 526
 527         if ((panel_info.vl_bpix) < 12) {
 528                 /* Leave room for default color map */
 529 #if defined(CONFIG_PXA250)
 530                 cmap = (ushort *)fbi->palette;
 531 #elif defined(CONFIG_MPC823)
 532                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 533 #elif defined(CONFIG_ATMEL_LCD)
 534                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 535 #endif
 536
 537                 WATCHDOG_RESET();
 538
 539                 /* Set color map */
 540                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 541                         ushort colreg = bmp_logo_palette[i];
 542 #ifdef CONFIG_ATMEL_LCD
 543                         uint lut_entry;
 544 #ifdef CONFIG_ATMEL_LCD_BGR555
 545                         lut_entry = ((colreg & 0x000F) << 11) |
 546                                     ((colreg & 0x00F0) <<  2) |
 547                                     ((colreg & 0x0F00) >>  7);
 548 #else /* CONFIG_ATMEL_LCD_RGB565 */
 549                         lut_entry = ((colreg & 0x000F) << 1) |
 550                                     ((colreg & 0x00F0) << 3) |
 551                                     ((colreg & 0x0F00) << 4);
 552 #endif
 553                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 554                         cmap++;
 555 #else /* !CONFIG_ATMEL_LCD */
 556 #ifdef  CONFIG_SYS_INVERT_COLORS
 557                         *cmap++ = 0xffff - colreg;
 558 #else
 559                         *cmap++ = colreg;
 560 #endif
 561 #endif /* CONFIG_ATMEL_LCD */
 562                 }
 563
 564                 WATCHDOG_RESET();
 565
 566                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 567                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 568                         bmap += BMP_LOGO_WIDTH;
 569                         fb   += panel_info.vl_col;
 570                 }
 571         }
 572         else { /* true color mode */
 573                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 574                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 575                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 576                                 fb16[j] = bmp_logo_palette[(bmap[j])];
 577                                 }
 578                         bmap += BMP_LOGO_WIDTH;
 579                         fb16 += panel_info.vl_col;
 580                 }
 581         }
 582
 583         WATCHDOG_RESET();
 584 }
 585 #endif /* CONFIG_LCD_LOGO */
 586
 587 /*----------------------------------------------------------------------*/
 588 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 589 /*
 590  * Display the BMP file located at address bmp_image.
 591  * Only uncompressed.
 592  */
 593
 594 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 595 #define BMP_ALIGN_CENTER        0x7FFF
 596 #endif
 597 void lcd_display_clear(void)
 598 {
 599         unsigned int *fb = lcd_base;
 600         printf("Clean the display\n");
 601
 602         memset(fb, 0, panel_info.vl_row * panel_info.vl_col * panel_info.vl_bpix / 8);
 603 }
 604
 605 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 606 {
 607 #if !defined(CONFIG_MCC200)
 608         ushort *cmap = NULL;
 609 #endif
 610         ushort *cmap_base = NULL;
 611         ushort i, j;
 612         uchar *fb;
 613         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 614         uchar *bmap;
 615         ushort padded_line;
 616         unsigned long width, height, byte_width;
 617         unsigned long pwidth = panel_info.vl_col;
 618         unsigned colors, bpix, bmp_bpix;
 619         unsigned long compression;
 620 #if defined(CONFIG_PXA250)
 621         struct pxafb_info *fbi = &panel_info.pxa;
 622 #elif defined(CONFIG_MPC823)
 623         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 624         volatile cpm8xx_t *cp = &(immr->im_cpm);
 625 #endif
 626
 627         if (!((bmp->header.signature[0]=='B') &&
 628                 (bmp->header.signature[1]=='M'))) {
 629                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 630                 return 1;
 631         }
 632
 633         width = le32_to_cpu (bmp->header.width);
 634         height = le32_to_cpu (bmp->header.height);
 635         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 636         colors = 1 << bmp_bpix;
 637         compression = le32_to_cpu (bmp->header.compression);
 638
 639         bpix = (panel_info.vl_bpix);
 640
 641         if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
 642                 printf ("Error0: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 643                         bpix, bmp_bpix);
 644                 return 1;
 645         }
 646
 647         /* We support displaying 8bpp BMPs on 16bpp LCDs and 4bpp BMPs on 32bpp LCDs */
 648         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16) && !(bpix == 32 && bmp_bpix == 4) ) {
 649                 printf ("Error1: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 650                         bpix,
 651                         le16_to_cpu(bmp->header.bit_count));
 652                 return 1;
 653         }
 654
 655         debug ("Display-bmp: %d x %d  with %d colors\n",
 656                 (int)width, (int)height, (int)colors);
 657
 658 #if !defined(CONFIG_MCC200)
 659         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 660         if (bmp_bpix == 8) {
 661 #if defined(CONFIG_PXA250)
 662                 cmap = (ushort *)fbi->palette;
 663 #elif defined(CONFIG_MPC823)
 664                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 665 #elif !defined(CONFIG_ATMEL_LCD)
 666                 /* cmap = panel_info.cmap; */
 667                 cmap = (ushort *) malloc(1024);
 668 #endif
 669
 670                 cmap_base = cmap;
 671
 672                 /* Set color map */
 673                 for (i=0; i<colors; ++i) {
 674                         bmp_color_table_entry_t cte = bmp->color_table[i];
 675 #if !defined(CONFIG_ATMEL_LCD)
 676                         ushort colreg =
 677                                 ( ((cte.red)   << 8) & 0xf800) |
 678                                 ( ((cte.green) << 3) & 0x07e0) |
 679                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 680 #ifdef CONFIG_SYS_INVERT_COLORS
 681                         *cmap = 0xffff - colreg;
 682 #else
 683                         *cmap = colreg;
 684 #endif
 685 #if defined(CONFIG_MPC823)
 686                         cmap--;
 687 #else
 688                         cmap++;
 689 #endif
 690 #else /* CONFIG_ATMEL_LCD */
 691                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 692 #endif
 693                 }
 694         }
 695 #endif
 696
 697         /*
 698          *  BMP format for Monochrome assumes that the state of a
 699          * pixel is described on a per Bit basis, not per Byte.
 700          *  So, in case of Monochrome BMP we should align widths
 701          * on a byte boundary and convert them from Bit to Byte
 702          * units.
 703          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 704          * their own ways, so make the converting to be MCC200
 705          * specific.
 706          */
 707 #if defined(CONFIG_MCC200)
 708         if (bpix==1)
 709         {
 710                 width = ((width + 7) & ~7) >> 3;
 711                 x     = ((x + 7) & ~7) >> 3;
 712                 pwidth= ((pwidth + 7) & ~7) >> 3;
 713         }
 714 #endif
 715
 716         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 717
 718 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 719         if (x == BMP_ALIGN_CENTER)
 720                 x = max(0, (pwidth - width) / 2);
 721         else if (x < 0)
 722                 x = max(0, pwidth - width + x + 1);
 723
 724         if (y == BMP_ALIGN_CENTER)
 725                 y = max(0, (panel_info.vl_row - height) / 2);
 726         else if (y < 0)
 727                 y = max(0, panel_info.vl_row - height + y + 1);
 728 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 729
 730         if ((x + width)>pwidth)
 731                 width = pwidth - x;
 732         if ((y + height)>panel_info.vl_row)
 733                 height = panel_info.vl_row - y;
 734
 735         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 736         fb   = (uchar *) (lcd_base +
 737                 (y + height - 1) * lcd_line_length + x);
 738
 739         switch (bmp_bpix) {
 740         case 4: /* Display 4b bmp at 32b lcd */
 741                 if (bpix == 32) {
 742                         /* 1. Get the color map */
 743                         unsigned int cmap_32[16];
 744                         unsigned int effective_width;
 745
 746                         for (i=0; i<colors; ++i) {
 747                                 bmp_color_table_entry_t cte = bmp->color_table[i];
 748                                 cmap_32[i] = (cte.red << 0) | (cte.green << 8) |
 749                                         (cte.blue << 16) | (cte.reserved << 24);
 750                         }
 751
 752                         /* 2. Put'em on the screen */
 753                         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 754                         fb = (uchar *) lcd_base;
 755                         fb += lcd_line_length * (y + height) + x * 4;
 756
 757                         printf("Drawing the 32bit bmp.. @ 4b (%d,%d) of [%ldx%ld] in %d (%d color)\n",
 758                                         x, y, width, height, lcd_line_length, colors);
 759                         effective_width = (width % 2) ? (width + 1) : width;
 760                         for (i = 0; i < height; ++i) {
 761                                 WATCHDOG_RESET();
 762                                 for (j = 0; j < width; j++) {
 763                                         int color_v;
 764                                         color_v = bmap[(j + i * effective_width) / 2];
 765                                         if ((j + i * effective_width) % 2)
 766                                                 color_v = color_v & 0xf;
 767                                         else
 768                                                 color_v = (color_v >> 4) & 0xf;
 769
 770                                         memcpy(fb, cmap_32 + color_v, 4);
 771                                         fb += 4;
 772                                 }
 773                                 fb   -= (lcd_line_length + width * 4);
 774                         }
 775                 }
 776                 break;
 777         case 1: /* pass through */
 778         case 8:
 779                 if (bpix != 16)
 780                         byte_width = width;
 781                 else
 782                         byte_width = width * 2;
 783
 784                 for (i = 0; i < height; ++i) {
 785                         WATCHDOG_RESET();
 786                         for (j = 0; j < width; j++) {
 787                                 if (bpix != 16) {
 788 #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD)
 789                                         *(fb++) = *(bmap++);
 790 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 791                                         *(fb++) = 255 - *(bmap++);
 792 #endif
 793                                 } else {
 794                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 795                                         fb += sizeof(uint16_t) / sizeof(*fb);
 796                                 }
 797                         }
 798                         bmap += (width - padded_line);
 799                         fb   -= (byte_width + lcd_line_length);
 800                 }
 801                 break;
 802
 803 #if defined(CONFIG_BMP_16BPP)
 804         case 16:
 805                 for (i = 0; i < height; ++i) {
 806                         WATCHDOG_RESET();
 807                         for (j = 0; j < width; j++) {
 808 #if defined(CONFIG_ATMEL_LCD_BGR555)
 809                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 810                                         (bmap[1] & 0x03);
 811                                 *(fb++) = (bmap[0] & 0xe0) |
 812                                         ((bmap[1] & 0x7c) >> 2);
 813                                 bmap += 2;
 814 #else
 815                                 *(fb++) = *(bmap++);
 816                                 *(fb++) = *(bmap++);
 817 #endif
 818                         }
 819                         bmap += (padded_line - width) * 2;
 820                         fb   -= (width * 2 + lcd_line_length);
 821                 }
 822                 break;
 823 #endif /* CONFIG_BMP_16BPP */
 824         case 32:
 825                 lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 826                 fb = (uchar *) lcd_base;
 827                 fb += lcd_line_length * (y + height) + x * 4;
 828
 829                 printf("Drawing the 32bit bmp.. @ (%d,%d) of [%ldx%ld] in %d\n",
 830                                 x, y, width, height, lcd_line_length);
 831                 for (i = 0; i < height; ++i) {
 832                         WATCHDOG_RESET();
 833                         for (j = 0; j < width; j++) {
 834                                 *(fb++) = *(bmap++);
 835                                 *(fb++) = *(bmap++);
 836                                 *(fb++) = *(bmap++);
 837                                 *(fb++) = *(bmap++);
 838                         }
 839                         //bmap += (padded_line - width) * 4;
 840                         fb   -= (lcd_line_length + width * 4);
 841                 }
 842                 break;
 843
 844         default:
 845                 break;
 846         };
 847
 848         return (0);
 849 }
 850 #endif
 851
 852 static void *lcd_logo (void)
 853 {
 854 #ifdef CONFIG_SPLASH_SCREEN
 855         char *s;
 856         ulong addr;
 857         int allocated = 0;
 858         static int do_splash = 1;
 859
 860         if (do_splash && (s = getenv("splashimage")) != NULL) {
 861                 int x = 0, y = 0;
 862                 do_splash = 0;
 863
 864                 addr = simple_strtoul (s, NULL, 16);
 865 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 866                 if ((s = getenv ("splashpos")) != NULL) {
 867                         if (s[0] == 'm')
 868                                 x = BMP_ALIGN_CENTER;
 869                         else
 870                                 x = simple_strtol (s, NULL, 0);
 871
 872                         if ((s = strchr (s + 1, ',')) != NULL) {
 873                                 if (s[1] == 'm')
 874                                         y = BMP_ALIGN_CENTER;
 875                                 else
 876                                         y = simple_strtol (s + 1, NULL, 0);
 877                         }
 878                 }
 879 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 880
 881 #ifdef CONFIG_VIDEO_BMP_GZIP
 882                 bmp_image_t *bmp = (bmp_image_t *)addr;
 883                 unsigned long len;
 884
 885                 if (!((bmp->header.signature[0]=='B') &&
 886                       (bmp->header.signature[1]=='M'))) {
 887                         addr = (ulong)gunzip_bmp(addr, &len);
 888                         if (addr)
 889                                 allocated = 1;
 890                 }
 891 #endif
 892
 893                 if (lcd_display_bitmap (addr, x, y) == 0) {
 894 #ifdef CONFIG_VIDEO_BMP_GZIP
 895                         if (addr && allocated)
 896                                 free((void *)addr);
 897 #endif
 898                         return ((void *)lcd_base);
 899                 }
 900 #ifdef CONFIG_VIDEO_BMP_GZIP
 901                 if (addr && allocated)
 902                         free((void *)addr);
 903 #endif
 904         }
 905 #endif /* CONFIG_SPLASH_SCREEN */
 906
 907 #ifdef CONFIG_LCD_LOGO
 908         bitmap_plot (0, 0);
 909 #endif /* CONFIG_LCD_LOGO */
 910
 911 #ifdef CONFIG_LCD_INFO
 912         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 913         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 914         lcd_show_board_info();
 915 #endif /* CONFIG_LCD_INFO */
 916
 917 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 918         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 919 #else
 920         return ((void *)lcd_base);
 921 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 922 }
 923
 924 /************************************************************************/
 925 /************************************************************************/