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 <version.h>
  36 #include <stdarg.h>
  37 #include <linux/types.h>
  38 #include <devices.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 #ifdef CONFIG_LCD
  54
  55 /************************************************************************/
  56 /* ** FONT DATA                                                         */
  57 /************************************************************************/
  58 #include <video_font.h>         /* Get font data, width and height      */
  59
  60 /************************************************************************/
  61 /* ** LOGO DATA                                                         */
  62 /************************************************************************/
  63 #ifdef CONFIG_LCD_LOGO
  64 # include <bmp_logo.h>          /* Get logo data, width and height      */
  65 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
  66 #  error Default Color Map overlaps with Logo Color Map
  67 # endif
  68 #endif
  69
  70 DECLARE_GLOBAL_DATA_PTR;
  71
  72 ulong lcd_setmem (ulong addr);
  73
  74 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  75 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  76 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  77
  78 static int lcd_init (void *lcdbase);
  79
  80 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  81 extern void lcd_ctrl_init (void *lcdbase);
  82 extern void lcd_enable (void);
  83 static void *lcd_logo (void);
  84
  85
  86 #if LCD_BPP == LCD_COLOR8
  87 extern void lcd_setcolreg (ushort regno,
  88                                 ushort red, ushort green, ushort blue);
  89 #endif
  90 #if LCD_BPP == LCD_MONOCHROME
  91 extern void lcd_initcolregs (void);
  92 #endif
  93
  94 static int lcd_getbgcolor (void);
  95 static void lcd_setfgcolor (int color);
  96 static void lcd_setbgcolor (int color);
  97
  98 char lcd_is_enabled = 0;
  99 extern vidinfo_t panel_info;
 100
 101 #ifdef  NOT_USED_SO_FAR
 102 static void lcd_getcolreg (ushort regno,
 103                                 ushort *red, ushort *green, ushort *blue);
 104 static int lcd_getfgcolor (void);
 105 #endif  /* NOT_USED_SO_FAR */
 106
 107 /************************************************************************/
 108
 109 /*----------------------------------------------------------------------*/
 110
 111 static void console_scrollup (void)
 112 {
 113 #if 1
 114         /* Copy up rows ignoring the first one */
 115         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 116
 117         /* Clear the last one */
 118         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 119 #else
 120         /*
 121          * Poor attempt to optimize speed by moving "long"s.
 122          * But the code is ugly, and not a bit faster :-(
 123          */
 124         ulong *t = (ulong *)CONSOLE_ROW_FIRST;
 125         ulong *s = (ulong *)CONSOLE_ROW_SECOND;
 126         ulong    l = CONSOLE_SCROLL_SIZE / sizeof(ulong);
 127         uchar  c = lcd_color_bg & 0xFF;
 128         ulong val= (c<<24) | (c<<16) | (c<<8) | c;
 129
 130         while (l--)
 131                 *t++ = *s++;
 132
 133         t = (ulong *)CONSOLE_ROW_LAST;
 134         l = CONSOLE_ROW_SIZE / sizeof(ulong);
 135
 136         while (l-- > 0)
 137                 *t++ = val;
 138 #endif
 139 }
 140
 141 /*----------------------------------------------------------------------*/
 142
 143 static inline void console_back (void)
 144 {
 145         if (--console_col < 0) {
 146                 console_col = CONSOLE_COLS-1 ;
 147                 if (--console_row < 0) {
 148                         console_row = 0;
 149                 }
 150         }
 151
 152         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 153                      console_row * VIDEO_FONT_HEIGHT,
 154                      ' ');
 155 }
 156
 157 /*----------------------------------------------------------------------*/
 158
 159 static inline void console_newline (void)
 160 {
 161         ++console_row;
 162         console_col = 0;
 163
 164         /* Check if we need to scroll the terminal */
 165         if (console_row >= CONSOLE_ROWS) {
 166                 /* Scroll everything up */
 167                 console_scrollup () ;
 168                 --console_row;
 169         }
 170 }
 171
 172 /*----------------------------------------------------------------------*/
 173
 174 void lcd_putc (const char c)
 175 {
 176         if (!lcd_is_enabled) {
 177                 serial_putc(c);
 178                 return;
 179         }
 180
 181         switch (c) {
 182         case '\r':      console_col = 0;
 183                         return;
 184
 185         case '\n':      console_newline();
 186                         return;
 187
 188         case '\t':      /* Tab (8 chars alignment) */
 189                         console_col |=  8;
 190                         console_col &= ~7;
 191
 192                         if (console_col >= CONSOLE_COLS) {
 193                                 console_newline();
 194                         }
 195                         return;
 196
 197         case '\b':      console_back();
 198                         return;
 199
 200         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 201                                      console_row * VIDEO_FONT_HEIGHT,
 202                                      c);
 203                         if (++console_col >= CONSOLE_COLS) {
 204                                 console_newline();
 205                         }
 206                         return;
 207         }
 208         /* NOTREACHED */
 209 }
 210
 211 /*----------------------------------------------------------------------*/
 212
 213 void lcd_puts (const char *s)
 214 {
 215         if (!lcd_is_enabled) {
 216                 serial_puts (s);
 217                 return;
 218         }
 219
 220         while (*s) {
 221                 lcd_putc (*s++);
 222         }
 223 }
 224
 225 /************************************************************************/
 226 /* ** Low-Level Graphics Routines                                       */
 227 /************************************************************************/
 228
 229 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 230 {
 231         uchar *dest;
 232         ushort off, row;
 233
 234         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 235         off  = x * (1 << LCD_BPP) % 8;
 236
 237         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 238                 uchar *s = str;
 239                 uchar *d = dest;
 240                 int i;
 241
 242 #if LCD_BPP == LCD_MONOCHROME
 243                 uchar rest = *d & -(1 << (8-off));
 244                 uchar sym;
 245 #endif
 246                 for (i=0; i<count; ++i) {
 247                         uchar c, bits;
 248
 249                         c = *s++;
 250                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 251
 252 #if LCD_BPP == LCD_MONOCHROME
 253                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 254                                (COLOR_MASK(lcd_color_bg) & ~bits);
 255
 256                         *d++ = rest | (sym >> off);
 257                         rest = sym << (8-off);
 258 #elif LCD_BPP == LCD_COLOR8
 259                         for (c=0; c<8; ++c) {
 260                                 *d++ = (bits & 0x80) ?
 261                                                 lcd_color_fg : lcd_color_bg;
 262                                 bits <<= 1;
 263                         }
 264 #elif LCD_BPP == LCD_COLOR16
 265                         for (c=0; c<16; ++c) {
 266                                 *d++ = (bits & 0x80) ?
 267                                                 lcd_color_fg : lcd_color_bg;
 268                                 bits <<= 1;
 269                         }
 270 #endif
 271                 }
 272 #if LCD_BPP == LCD_MONOCHROME
 273                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 274 #endif
 275         }
 276 }
 277
 278 /*----------------------------------------------------------------------*/
 279
 280 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 281 {
 282 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 283         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 284 #else
 285         lcd_drawchars (x, y, s, strlen ((char *)s));
 286 #endif
 287 }
 288
 289 /*----------------------------------------------------------------------*/
 290
 291 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 292 {
 293 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 294         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 295 #else
 296         lcd_drawchars (x, y, &c, 1);
 297 #endif
 298 }
 299
 300 /************************************************************************/
 301 /**  Small utility to check that you got the colours right              */
 302 /************************************************************************/
 303 #ifdef LCD_TEST_PATTERN
 304
 305 #define N_BLK_VERT      2
 306 #define N_BLK_HOR       3
 307
 308 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 309         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 310         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 311 };
 312
 313 static void test_pattern (void)
 314 {
 315         ushort v_max  = panel_info.vl_row;
 316         ushort h_max  = panel_info.vl_col;
 317         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 318         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 319         ushort v, h;
 320         uchar *pix = (uchar *)lcd_base;
 321
 322         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 323                 h_max, v_max, h_step, v_step);
 324
 325         /* WARNING: Code silently assumes 8bit/pixel */
 326         for (v=0; v<v_max; ++v) {
 327                 uchar iy = v / v_step;
 328                 for (h=0; h<h_max; ++h) {
 329                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 330                         *pix++ = test_colors[ix];
 331                 }
 332         }
 333 }
 334 #endif /* LCD_TEST_PATTERN */
 335
 336
 337 /************************************************************************/
 338 /* ** GENERIC Initialization Routines                                   */
 339 /************************************************************************/
 340
 341 int drv_lcd_init (void)
 342 {
 343         device_t lcddev;
 344         int rc;
 345
 346         lcd_base = (void *)(gd->fb_base);
 347
 348         lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 349
 350         lcd_init (lcd_base);            /* LCD initialization */
 351
 352         /* Device initialization */
 353         memset (&lcddev, 0, sizeof (lcddev));
 354
 355         strcpy (lcddev.name, "lcd");
 356         lcddev.ext   = 0;                       /* No extensions */
 357         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 358         lcddev.putc  = lcd_putc;                /* 'putc' function */
 359         lcddev.puts  = lcd_puts;                /* 'puts' function */
 360
 361         rc = device_register (&lcddev);
 362
 363         return (rc == 0) ? 1 : rc;
 364 }
 365
 366 /*----------------------------------------------------------------------*/
 367 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 368 {
 369 #if LCD_BPP == LCD_MONOCHROME
 370         /* Setting the palette */
 371         lcd_initcolregs();
 372
 373 #elif LCD_BPP == LCD_COLOR8
 374         /* Setting the palette */
 375         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 376         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 377         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 378         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 379         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 380         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 381         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 382         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 383         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 384 #endif
 385
 386 #ifndef CFG_WHITE_ON_BLACK
 387         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 388         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 389 #else
 390         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 391         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 392 #endif  /* CFG_WHITE_ON_BLACK */
 393
 394 #ifdef  LCD_TEST_PATTERN
 395         test_pattern();
 396 #else
 397         /* set framebuffer to background color */
 398         memset ((char *)lcd_base,
 399                 COLOR_MASK(lcd_getbgcolor()),
 400                 lcd_line_length*panel_info.vl_row);
 401 #endif
 402         /* Paint the logo and retrieve LCD base address */
 403         debug ("[LCD] Drawing the logo...\n");
 404         lcd_console_address = lcd_logo ();
 405
 406         console_col = 0;
 407         console_row = 0;
 408
 409         return (0);
 410 }
 411
 412 U_BOOT_CMD(
 413         cls,    1,      1,      lcd_clear,
 414         "cls     - clear screen\n",
 415         NULL
 416 );
 417
 418 /*----------------------------------------------------------------------*/
 419
 420 static int lcd_init (void *lcdbase)
 421 {
 422         /* Initialize the lcd controller */
 423         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 424
 425         lcd_ctrl_init (lcdbase);
 426         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 427         lcd_enable ();
 428
 429         /* Initialize the console */
 430         console_col = 0;
 431 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 432         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 433 #else
 434         console_row = 1;        /* leave 1 blank line below logo */
 435 #endif
 436         lcd_is_enabled = 1;
 437
 438         return 0;
 439 }
 440
 441
 442 /************************************************************************/
 443 /* ** ROM capable initialization part - needed to reserve FB memory     */
 444 /************************************************************************/
 445 /*
 446  * This is called early in the system initialization to grab memory
 447  * for the LCD controller.
 448  * Returns new address for monitor, after reserving LCD buffer memory
 449  *
 450  * Note that this is running from ROM, so no write access to global data.
 451  */
 452 ulong lcd_setmem (ulong addr)
 453 {
 454         ulong size;
 455         int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 456
 457         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 458                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 459
 460         size = line_length * panel_info.vl_row;
 461
 462         /* Round up to nearest full page */
 463         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 464
 465         /* Allocate pages for the frame buffer. */
 466         addr -= size;
 467
 468         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 469
 470         return (addr);
 471 }
 472
 473 /*----------------------------------------------------------------------*/
 474
 475 static void lcd_setfgcolor (int color)
 476 {
 477         lcd_color_fg = color & 0x0F;
 478 }
 479
 480 /*----------------------------------------------------------------------*/
 481
 482 static void lcd_setbgcolor (int color)
 483 {
 484         lcd_color_bg = color & 0x0F;
 485 }
 486
 487 /*----------------------------------------------------------------------*/
 488
 489 #ifdef  NOT_USED_SO_FAR
 490 static int lcd_getfgcolor (void)
 491 {
 492         return lcd_color_fg;
 493 }
 494 #endif  /* NOT_USED_SO_FAR */
 495
 496 /*----------------------------------------------------------------------*/
 497
 498 static int lcd_getbgcolor (void)
 499 {
 500         return lcd_color_bg;
 501 }
 502
 503 /*----------------------------------------------------------------------*/
 504
 505 /************************************************************************/
 506 /* ** Chipset depending Bitmap / Logo stuff...                          */
 507 /************************************************************************/
 508 #ifdef CONFIG_LCD_LOGO
 509 void bitmap_plot (int x, int y)
 510 {
 511         ushort *cmap;
 512         ushort i, j;
 513         uchar *bmap;
 514         uchar *fb;
 515         ushort *fb16;
 516 #if defined(CONFIG_PXA250)
 517         struct pxafb_info *fbi = &panel_info.pxa;
 518 #elif defined(CONFIG_MPC823)
 519         volatile immap_t *immr = (immap_t *) CFG_IMMR;
 520         volatile cpm8xx_t *cp = &(immr->im_cpm);
 521 #endif
 522
 523         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 524                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 525                 sizeof(bmp_logo_palette)/(sizeof(ushort)));
 526
 527         bmap = &bmp_logo_bitmap[0];
 528         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 529
 530         if (NBITS(panel_info.vl_bpix) < 12) {
 531                 /* Leave room for default color map */
 532 #if defined(CONFIG_PXA250)
 533                 cmap = (ushort *)fbi->palette;
 534 #elif defined(CONFIG_MPC823)
 535                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 536 #endif
 537
 538                 WATCHDOG_RESET();
 539
 540                 /* Set color map */
 541                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 542                         ushort colreg = bmp_logo_palette[i];
 543 #ifdef  CFG_INVERT_COLORS
 544                         *cmap++ = 0xffff - colreg;
 545 #else
 546                         *cmap++ = colreg;
 547 #endif
 548                 }
 549
 550                 WATCHDOG_RESET();
 551
 552                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 553                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 554                         bmap += BMP_LOGO_WIDTH;
 555                         fb   += panel_info.vl_col;
 556                 }
 557         }
 558         else { /* true color mode */
 559                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 560                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 561                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 562                                 fb16[j] = bmp_logo_palette[(bmap[j])];
 563                                 }
 564                         bmap += BMP_LOGO_WIDTH;
 565                         fb16 += panel_info.vl_col;
 566                 }
 567         }
 568
 569         WATCHDOG_RESET();
 570 }
 571 #endif /* CONFIG_LCD_LOGO */
 572
 573 /*----------------------------------------------------------------------*/
 574 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 575 /*
 576  * Display the BMP file located at address bmp_image.
 577  * Only uncompressed.
 578  */
 579 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 580 {
 581 #if !defined(CONFIG_MCC200)
 582         ushort *cmap;
 583 #endif
 584         ushort i, j;
 585         uchar *fb;
 586         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 587         uchar *bmap;
 588         ushort padded_line;
 589         unsigned long width, height;
 590         unsigned long pwidth = panel_info.vl_col;
 591         unsigned colors,bpix;
 592         unsigned long compression;
 593 #if defined(CONFIG_PXA250)
 594         struct pxafb_info *fbi = &panel_info.pxa;
 595 #elif defined(CONFIG_MPC823)
 596         volatile immap_t *immr = (immap_t *) CFG_IMMR;
 597         volatile cpm8xx_t *cp = &(immr->im_cpm);
 598 #endif
 599
 600         if (!((bmp->header.signature[0]=='B') &&
 601                 (bmp->header.signature[1]=='M'))) {
 602                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 603                 return 1;
 604 }
 605
 606         width = le32_to_cpu (bmp->header.width);
 607         height = le32_to_cpu (bmp->header.height);
 608         colors = 1<<le16_to_cpu (bmp->header.bit_count);
 609         compression = le32_to_cpu (bmp->header.compression);
 610
 611         bpix = NBITS(panel_info.vl_bpix);
 612
 613         if ((bpix != 1) && (bpix != 8)) {
 614                 printf ("Error: %d bit/pixel mode not supported by U-Boot\n",
 615                         bpix);
 616                 return 1;
 617         }
 618
 619         if (bpix != le16_to_cpu(bmp->header.bit_count)) {
 620                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 621                         bpix,
 622                         le16_to_cpu(bmp->header.bit_count));
 623                 return 1;
 624         }
 625
 626         debug ("Display-bmp: %d x %d  with %d colors\n",
 627                 (int)width, (int)height, (int)colors);
 628
 629 #if !defined(CONFIG_MCC200)
 630         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 631         if (bpix==8) {
 632 #if defined(CONFIG_PXA250)
 633                 cmap = (ushort *)fbi->palette;
 634 #elif defined(CONFIG_MPC823)
 635                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 636 #else
 637 # error "Don't know location of color map"
 638 #endif
 639
 640                 /* Set color map */
 641                 for (i=0; i<colors; ++i) {
 642                         bmp_color_table_entry_t cte = bmp->color_table[i];
 643                         ushort colreg =
 644                                 ( ((cte.red)   << 8) & 0xf800) |
 645                                 ( ((cte.green) << 3) & 0x07e0) |
 646                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 647 #ifdef CFG_INVERT_COLORS
 648                         *cmap = 0xffff - colreg;
 649 #else
 650                         *cmap = colreg;
 651 #endif
 652 #if defined(CONFIG_PXA250)
 653                         cmap++;
 654 #elif defined(CONFIG_MPC823)
 655                         cmap--;
 656 #endif
 657                 }
 658         }
 659 #endif
 660
 661         /*
 662          *  BMP format for Monochrome assumes that the state of a
 663          * pixel is described on a per Bit basis, not per Byte.
 664          *  So, in case of Monochrome BMP we should align widths
 665          * on a byte boundary and convert them from Bit to Byte
 666          * units.
 667          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 668          * their own ways, so make the converting to be MCC200
 669          * specific.
 670          */
 671 #if defined(CONFIG_MCC200)
 672         if (bpix==1)
 673         {
 674                 width = ((width + 7) & ~7) >> 3;
 675                 x     = ((x + 7) & ~7) >> 3;
 676                 pwidth= ((pwidth + 7) & ~7) >> 3;
 677         }
 678 #endif
 679
 680         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 681         if ((x + width)>pwidth)
 682                 width = pwidth - x;
 683         if ((y + height)>panel_info.vl_row)
 684                 height = panel_info.vl_row - y;
 685
 686         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 687         fb   = (uchar *) (lcd_base +
 688                 (y + height - 1) * lcd_line_length + x);
 689         for (i = 0; i < height; ++i) {
 690                 WATCHDOG_RESET();
 691                 for (j = 0; j < width ; j++)
 692 #if defined(CONFIG_PXA250)
 693                         *(fb++)=*(bmap++);
 694 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 695                         *(fb++)=255-*(bmap++);
 696 #endif
 697                 bmap += (width - padded_line);
 698                 fb   -= (width + lcd_line_length);
 699         }
 700
 701         return (0);
 702 }
 703 #endif
 704
 705
 706 static void *lcd_logo (void)
 707 {
 708 #ifdef CONFIG_LCD_INFO
 709         char info[80];
 710         char temp[32];
 711 #endif /* CONFIG_LCD_INFO */
 712
 713 #ifdef CONFIG_SPLASH_SCREEN
 714         char *s;
 715         ulong addr;
 716         static int do_splash = 1;
 717
 718         if (do_splash && (s = getenv("splashimage")) != NULL) {
 719                 addr = simple_strtoul(s, NULL, 16);
 720                 do_splash = 0;
 721
 722                 if (lcd_display_bitmap (addr, 0, 0) == 0) {
 723                         return ((void *)lcd_base);
 724                 }
 725         }
 726 #endif /* CONFIG_SPLASH_SCREEN */
 727
 728 #ifdef CONFIG_LCD_LOGO
 729         bitmap_plot (0, 0);
 730 #endif /* CONFIG_LCD_LOGO */
 731
 732 #ifdef CONFIG_MPC823
 733 # ifdef CONFIG_LCD_INFO
 734         sprintf (info, "%s (%s - %s) ", U_BOOT_VERSION, __DATE__, __TIME__);
 735         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y, (uchar *)info, strlen(info));
 736
 737         sprintf (info, "(C) 2004 DENX Software Engineering");
 738         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT,
 739                                         (uchar *)info, strlen(info));
 740
 741         sprintf (info, "    Wolfgang DENK, wd@denx.de");
 742         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 2,
 743                                         (uchar *)info, strlen(info));
 744 #  ifdef CONFIG_LCD_INFO_BELOW_LOGO
 745         sprintf (info, "MPC823 CPU at %s MHz",
 746                 strmhz(temp, gd->cpu_clk));
 747         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 3,
 748                                         info, strlen(info));
 749         sprintf (info, "  %ld MB RAM, %ld MB Flash",
 750                 gd->ram_size >> 20,
 751                 gd->bd->bi_flashsize >> 20 );
 752         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
 753                                         info, strlen(info));
 754 #  else
 755         /* leave one blank line */
 756
 757         sprintf (info, "MPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash",
 758                 strmhz(temp, gd->cpu_clk),
 759                 gd->ram_size >> 20,
 760                 gd->bd->bi_flashsize >> 20 );
 761         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
 762                                         (uchar *)info, strlen(info));
 763
 764 #  endif /* CONFIG_LCD_INFO_BELOW_LOGO */
 765 # endif /* CONFIG_LCD_INFO */
 766 #endif /* CONFIG_MPC823 */
 767
 768 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 769         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 770 #else
 771         return ((void *)lcd_base);
 772 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 773 }
 774
 775 /************************************************************************/
 776 /************************************************************************/
 777
 778 #endif /* CONFIG_LCD */