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 #if defined(CONFIG_POST)
  39 #include <post.h>
  40 #endif
  41 #include <lcd.h>
  42 #include <watchdog.h>
  43
  44 #if defined(CONFIG_PXA250)
  45 #include <asm/byteorder.h>
  46 #endif
  47
  48 #if defined(CONFIG_MPC823)
  49 #include <lcdvideo.h>
  50 #endif
  51
  52 #if defined(CONFIG_ATMEL_LCD)
  53 #include <atmel_lcdc.h>
  54 #endif
  55
  56 /************************************************************************/
  57 /* ** FONT DATA                                                         */
  58 /************************************************************************/
  59 #include <video_font.h>         /* Get font data, width and height      */
  60
  61 /************************************************************************/
  62 /* ** LOGO DATA                                                         */
  63 /************************************************************************/
  64 #ifdef CONFIG_LCD_LOGO
  65 # include <bmp_logo.h>          /* Get logo data, width and height      */
  66 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
  67 #  error Default Color Map overlaps with Logo Color Map
  68 # endif
  69 #endif
  70
  71 DECLARE_GLOBAL_DATA_PTR;
  72
  73 ulong lcd_setmem (ulong addr);
  74
  75 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  76 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  77 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  78
  79 static int lcd_init (void *lcdbase);
  80
  81 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  82 static void *lcd_logo (void);
  83
  84 static int lcd_getbgcolor (void);
  85 static void lcd_setfgcolor (int color);
  86 static void lcd_setbgcolor (int color);
  87
  88 char lcd_is_enabled = 0;
  89
  90 #ifdef  NOT_USED_SO_FAR
  91 static void lcd_getcolreg (ushort regno,
  92                                 ushort *red, ushort *green, ushort *blue);
  93 static int lcd_getfgcolor (void);
  94 #endif  /* NOT_USED_SO_FAR */
  95
  96 /************************************************************************/
  97
  98 /*----------------------------------------------------------------------*/
  99
 100 static void console_scrollup (void)
 101 {
 102         /* Copy up rows ignoring the first one */
 103         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 104
 105         /* Clear the last one */
 106         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 107 }
 108
 109 /*----------------------------------------------------------------------*/
 110
 111 static inline void console_back (void)
 112 {
 113         if (--console_col < 0) {
 114                 console_col = CONSOLE_COLS-1 ;
 115                 if (--console_row < 0) {
 116                         console_row = 0;
 117                 }
 118         }
 119
 120         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 121                      console_row * VIDEO_FONT_HEIGHT,
 122                      ' ');
 123 }
 124
 125 /*----------------------------------------------------------------------*/
 126
 127 static inline void console_newline (void)
 128 {
 129         ++console_row;
 130         console_col = 0;
 131
 132         /* Check if we need to scroll the terminal */
 133         if (console_row >= CONSOLE_ROWS) {
 134                 /* Scroll everything up */
 135                 console_scrollup () ;
 136                 --console_row;
 137         }
 138 }
 139
 140 /*----------------------------------------------------------------------*/
 141
 142 void lcd_putc (const char c)
 143 {
 144         if (!lcd_is_enabled) {
 145                 serial_putc(c);
 146                 return;
 147         }
 148
 149         switch (c) {
 150         case '\r':      console_col = 0;
 151                         return;
 152
 153         case '\n':      console_newline();
 154                         return;
 155
 156         case '\t':      /* Tab (8 chars alignment) */
 157                         console_col +=  8;
 158                         console_col &= ~7;
 159
 160                         if (console_col >= CONSOLE_COLS) {
 161                                 console_newline();
 162                         }
 163                         return;
 164
 165         case '\b':      console_back();
 166                         return;
 167
 168         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 169                                      console_row * VIDEO_FONT_HEIGHT,
 170                                      c);
 171                         if (++console_col >= CONSOLE_COLS) {
 172                                 console_newline();
 173                         }
 174                         return;
 175         }
 176         /* NOTREACHED */
 177 }
 178
 179 /*----------------------------------------------------------------------*/
 180
 181 void lcd_puts (const char *s)
 182 {
 183         if (!lcd_is_enabled) {
 184                 serial_puts (s);
 185                 return;
 186         }
 187
 188         while (*s) {
 189                 lcd_putc (*s++);
 190         }
 191 }
 192
 193 /*----------------------------------------------------------------------*/
 194
 195 void lcd_printf(const char *fmt, ...)
 196 {
 197         va_list args;
 198         char buf[CONFIG_SYS_PBSIZE];
 199
 200         va_start(args, fmt);
 201         vsprintf(buf, fmt, args);
 202         va_end(args);
 203
 204         lcd_puts(buf);
 205 }
 206
 207 /************************************************************************/
 208 /* ** Low-Level Graphics Routines                                       */
 209 /************************************************************************/
 210
 211 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 212 {
 213         uchar *dest;
 214         ushort off, row;
 215
 216         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 217         off  = x * (1 << LCD_BPP) % 8;
 218
 219         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 220                 uchar *s = str;
 221                 uchar *d = dest;
 222                 int i;
 223
 224 #if LCD_BPP == LCD_MONOCHROME
 225                 uchar rest = *d & -(1 << (8-off));
 226                 uchar sym;
 227 #endif
 228                 for (i=0; i<count; ++i) {
 229                         uchar c, bits;
 230
 231                         c = *s++;
 232                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 233
 234 #if LCD_BPP == LCD_MONOCHROME
 235                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 236                                (COLOR_MASK(lcd_color_bg) & ~bits);
 237
 238                         *d++ = rest | (sym >> off);
 239                         rest = sym << (8-off);
 240 #elif LCD_BPP == LCD_COLOR8
 241                         for (c=0; c<8; ++c) {
 242                                 *d++ = (bits & 0x80) ?
 243                                                 lcd_color_fg : lcd_color_bg;
 244                                 bits <<= 1;
 245                         }
 246 #elif LCD_BPP == LCD_COLOR16
 247                         for (c=0; c<16; ++c) {
 248                                 *d++ = (bits & 0x80) ?
 249                                                 lcd_color_fg : lcd_color_bg;
 250                                 bits <<= 1;
 251                         }
 252 #endif
 253                 }
 254 #if LCD_BPP == LCD_MONOCHROME
 255                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 256 #endif
 257         }
 258 }
 259
 260 /*----------------------------------------------------------------------*/
 261
 262 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 263 {
 264 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 265         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 266 #else
 267         lcd_drawchars (x, y, s, strlen ((char *)s));
 268 #endif
 269 }
 270
 271 /*----------------------------------------------------------------------*/
 272
 273 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 274 {
 275 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 276         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 277 #else
 278         lcd_drawchars (x, y, &c, 1);
 279 #endif
 280 }
 281
 282 /************************************************************************/
 283 /**  Small utility to check that you got the colours right              */
 284 /************************************************************************/
 285 #ifdef LCD_TEST_PATTERN
 286
 287 #define N_BLK_VERT      2
 288 #define N_BLK_HOR       3
 289
 290 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 291         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 292         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 293 };
 294
 295 static void test_pattern (void)
 296 {
 297         ushort v_max  = panel_info.vl_row;
 298         ushort h_max  = panel_info.vl_col;
 299         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 300         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 301         ushort v, h;
 302         uchar *pix = (uchar *)lcd_base;
 303
 304         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 305                 h_max, v_max, h_step, v_step);
 306
 307         /* WARNING: Code silently assumes 8bit/pixel */
 308         for (v=0; v<v_max; ++v) {
 309                 uchar iy = v / v_step;
 310                 for (h=0; h<h_max; ++h) {
 311                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 312                         *pix++ = test_colors[ix];
 313                 }
 314         }
 315 }
 316 #endif /* LCD_TEST_PATTERN */
 317
 318
 319 /************************************************************************/
 320 /* ** GENERIC Initialization Routines                                   */
 321 /************************************************************************/
 322 int drv_lcd_init_resume (void)
 323 {
 324         lcd_base = (void *)(gd->fb_base);
 325
 326         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 327
 328         lcd_init (lcd_base);            /* LCD initialization */
 329
 330         return 0;
 331 }
 332
 333 int drv_lcd_init (void)
 334 {
 335         struct stdio_dev lcddev;
 336         int rc;
 337
 338         lcd_base = (void *)(gd->fb_base);
 339
 340         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 341
 342         lcd_init (lcd_base);            /* LCD initialization */
 343
 344         /* Device initialization */
 345         memset (&lcddev, 0, sizeof (lcddev));
 346
 347         strcpy (lcddev.name, "lcd");
 348         lcddev.ext   = 0;                       /* No extensions */
 349         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 350         lcddev.putc  = lcd_putc;                /* 'putc' function */
 351         lcddev.puts  = lcd_puts;                /* 'puts' function */
 352
 353         rc = stdio_register (&lcddev);
 354
 355         return (rc == 0) ? 1 : rc;
 356 }
 357
 358 /*----------------------------------------------------------------------*/
 359 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 360 {
 361 #if LCD_BPP == LCD_MONOCHROME
 362         /* Setting the palette */
 363         lcd_initcolregs();
 364
 365 #elif LCD_BPP == LCD_COLOR8
 366         /* Setting the palette */
 367         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 368         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 369         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 370         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 371         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 372         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 373         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 374         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 375         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 376 #endif
 377
 378 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 379         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 380         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 381 #else
 382         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 383         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 384 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 385
 386 #ifdef  LCD_TEST_PATTERN
 387         test_pattern();
 388 #else
 389         /* set framebuffer to background color */
 390         memset ((char *)lcd_base,
 391                 COLOR_MASK(lcd_getbgcolor()),
 392                 lcd_line_length*panel_info.vl_row);
 393 #endif
 394         /* Paint the logo and retrieve LCD base address */
 395         debug ("[LCD] Drawing the logo...\n");
 396         lcd_console_address = lcd_logo ();
 397
 398         console_col = 0;
 399         console_row = 0;
 400
 401         return (0);
 402 }
 403
 404 U_BOOT_CMD(
 405         cls,    1,      1,      lcd_clear,
 406         "clear screen",
 407         ""
 408 );
 409
 410 /*----------------------------------------------------------------------*/
 411
 412 static int lcd_init (void *lcdbase)
 413 {
 414         /* Initialize the lcd controller */
 415         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 416
 417         lcd_ctrl_init (lcdbase);
 418         lcd_is_enabled = 1;
 419         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 420         lcd_enable ();
 421
 422         /* Initialize the console */
 423         console_col = 0;
 424 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 425         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 426 #else
 427         console_row = 1;        /* leave 1 blank line below logo */
 428 #endif
 429
 430         return 0;
 431 }
 432
 433
 434 /************************************************************************/
 435 /* ** ROM capable initialization part - needed to reserve FB memory     */
 436 /************************************************************************/
 437 /*
 438  * This is called early in the system initialization to grab memory
 439  * for the LCD controller.
 440  * Returns new address for monitor, after reserving LCD buffer memory
 441  *
 442  * Note that this is running from ROM, so no write access to global data.
 443  */
 444 ulong lcd_setmem (ulong addr)
 445 {
 446         ulong size;
 447         int line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 448
 449         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 450                 panel_info.vl_col, panel_info.vl_row, (panel_info.vl_bpix) );
 451
 452         size = line_length * panel_info.vl_row;
 453
 454         /* Round up to nearest full page */
 455         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 456
 457         /* Allocate pages for the frame buffer. */
 458         addr -= size;
 459
 460         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 461
 462         return (addr);
 463 }
 464
 465 /*----------------------------------------------------------------------*/
 466
 467 static void lcd_setfgcolor (int color)
 468 {
 469 #ifdef CONFIG_ATMEL_LCD
 470         lcd_color_fg = color;
 471 #else
 472         lcd_color_fg = color & 0x0F;
 473 #endif
 474 }
 475
 476 /*----------------------------------------------------------------------*/
 477
 478 static void lcd_setbgcolor (int color)
 479 {
 480 #ifdef CONFIG_ATMEL_LCD
 481         lcd_color_bg = color;
 482 #else
 483         lcd_color_bg = color & 0x0F;
 484 #endif
 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 #ifdef CONFIG_ATMEL_LCD
 512         uint *cmap;
 513 #else
 514         ushort *cmap;
 515 #endif
 516         ushort i, j;
 517         uchar *bmap;
 518         uchar *fb;
 519         ushort *fb16;
 520 #if defined(CONFIG_PXA250)
 521         struct pxafb_info *fbi = &panel_info.pxa;
 522 #elif defined(CONFIG_MPC823)
 523         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 524         volatile cpm8xx_t *cp = &(immr->im_cpm);
 525 #endif
 526
 527         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 528                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 529                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 530
 531         bmap = &bmp_logo_bitmap[0];
 532         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 533
 534         if ((panel_info.vl_bpix) < 12) {
 535                 /* Leave room for default color map */
 536 #if defined(CONFIG_PXA250)
 537                 cmap = (ushort *)fbi->palette;
 538 #elif defined(CONFIG_MPC823)
 539                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 540 #elif defined(CONFIG_ATMEL_LCD)
 541                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 542 #endif
 543
 544                 WATCHDOG_RESET();
 545
 546                 /* Set color map */
 547                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 548                         ushort colreg = bmp_logo_palette[i];
 549 #ifdef CONFIG_ATMEL_LCD
 550                         uint lut_entry;
 551 #ifdef CONFIG_ATMEL_LCD_BGR555
 552                         lut_entry = ((colreg & 0x000F) << 11) |
 553                                     ((colreg & 0x00F0) <<  2) |
 554                                     ((colreg & 0x0F00) >>  7);
 555 #else /* CONFIG_ATMEL_LCD_RGB565 */
 556                         lut_entry = ((colreg & 0x000F) << 1) |
 557                                     ((colreg & 0x00F0) << 3) |
 558                                     ((colreg & 0x0F00) << 4);
 559 #endif
 560                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 561                         cmap++;
 562 #else /* !CONFIG_ATMEL_LCD */
 563 #ifdef  CONFIG_SYS_INVERT_COLORS
 564                         *cmap++ = 0xffff - colreg;
 565 #else
 566                         *cmap++ = colreg;
 567 #endif
 568 #endif /* CONFIG_ATMEL_LCD */
 569                 }
 570
 571                 WATCHDOG_RESET();
 572
 573                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 574                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 575                         bmap += BMP_LOGO_WIDTH;
 576                         fb   += panel_info.vl_col;
 577                 }
 578         }
 579         else { /* true color mode */
 580                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 581                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 582                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 583                                 fb16[j] = bmp_logo_palette[(bmap[j])];
 584                                 }
 585                         bmap += BMP_LOGO_WIDTH;
 586                         fb16 += panel_info.vl_col;
 587                 }
 588         }
 589
 590         WATCHDOG_RESET();
 591 }
 592 #endif /* CONFIG_LCD_LOGO */
 593
 594 /*----------------------------------------------------------------------*/
 595 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 596 /*
 597  * Display the BMP file located at address bmp_image.
 598  * Only uncompressed.
 599  */
 600
 601 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 602 #define BMP_ALIGN_CENTER        0x7FFF
 603 #endif
 604 void lcd_display_clear(void)
 605 {
 606         unsigned int *fb = lcd_base;
 607         int i, j, k;
 608         printf("Clean the display\n");
 609
 610         memset(fb, 0, panel_info.vl_row * panel_info.vl_col * panel_info.vl_bpix / 8);
 611 }
 612 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 613 {
 614 #if !defined(CONFIG_MCC200)
 615         ushort *cmap = NULL;
 616 #endif
 617         ushort *cmap_base = NULL;
 618         ushort i, j;
 619         uchar *fb;
 620         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 621         uchar *bmap;
 622         ushort padded_line;
 623         unsigned long width, height, byte_width;
 624         unsigned long pwidth = panel_info.vl_col;
 625         unsigned colors, bpix, bmp_bpix;
 626         unsigned long compression;
 627 #if defined(CONFIG_PXA250)
 628         struct pxafb_info *fbi = &panel_info.pxa;
 629 #elif defined(CONFIG_MPC823)
 630         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 631         volatile cpm8xx_t *cp = &(immr->im_cpm);
 632 #endif
 633
 634         if (!((bmp->header.signature[0]=='B') &&
 635                 (bmp->header.signature[1]=='M'))) {
 636                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 637                 return 1;
 638         }
 639
 640         width = le32_to_cpu (bmp->header.width);
 641         height = le32_to_cpu (bmp->header.height);
 642         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 643         colors = 1 << bmp_bpix;
 644         compression = le32_to_cpu (bmp->header.compression);
 645
 646         bpix = (panel_info.vl_bpix);
 647         /* Circumsbenting the error in panel_info.
 648          * TODO: correct panel_info */
 649
 650         if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
 651                 printf ("Error0: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 652                         bpix, bmp_bpix);
 653                 return 1;
 654         }
 655
 656         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 657         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16) && !(bpix == 32 && bmp_bpix ==4) ) {
 658                 printf ("Error1: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 659                         bpix,
 660                         le16_to_cpu(bmp->header.bit_count));
 661                 return 1;
 662         }
 663
 664         debug ("Display-bmp: %d x %d  with %d colors\n",
 665                 (int)width, (int)height, (int)colors);
 666
 667 #if !defined(CONFIG_MCC200)
 668         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 669         if (bmp_bpix == 8) {
 670 #if defined(CONFIG_PXA250)
 671                 cmap = (ushort *)fbi->palette;
 672 #elif defined(CONFIG_MPC823)
 673                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 674 #elif !defined(CONFIG_ATMEL_LCD)
 675                 /* cmap = panel_info.cmap; */
 676                 cmap = (ushort *) malloc(1024);
 677 #endif
 678
 679                 cmap_base = cmap;
 680
 681                 /* Set color map */
 682                 for (i=0; i<colors; ++i) {
 683                         bmp_color_table_entry_t cte = bmp->color_table[i];
 684 #if !defined(CONFIG_ATMEL_LCD)
 685                         ushort colreg =
 686                                 ( ((cte.red)   << 8) & 0xf800) |
 687                                 ( ((cte.green) << 3) & 0x07e0) |
 688                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 689 #ifdef CONFIG_SYS_INVERT_COLORS
 690                         *cmap = 0xffff - colreg;
 691 #else
 692                         *cmap = colreg;
 693 #endif
 694 #if defined(CONFIG_MPC823)
 695                         cmap--;
 696 #else
 697                         cmap++;
 698 #endif
 699 #else /* CONFIG_ATMEL_LCD */
 700                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 701 #endif
 702                 }
 703         }
 704 #endif
 705
 706         /*
 707          *  BMP format for Monochrome assumes that the state of a
 708          * pixel is described on a per Bit basis, not per Byte.
 709          *  So, in case of Monochrome BMP we should align widths
 710          * on a byte boundary and convert them from Bit to Byte
 711          * units.
 712          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 713          * their own ways, so make the converting to be MCC200
 714          * specific.
 715          */
 716 #if defined(CONFIG_MCC200)
 717         if (bpix==1)
 718         {
 719                 width = ((width + 7) & ~7) >> 3;
 720                 x     = ((x + 7) & ~7) >> 3;
 721                 pwidth= ((pwidth + 7) & ~7) >> 3;
 722         }
 723 #endif
 724
 725         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 726
 727 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 728         if (x == BMP_ALIGN_CENTER)
 729                 x = max(0, (pwidth - width) / 2);
 730         else if (x < 0)
 731                 x = max(0, pwidth - width + x + 1);
 732
 733         if (y == BMP_ALIGN_CENTER)
 734                 y = max(0, (panel_info.vl_row - height) / 2);
 735         else if (y < 0)
 736                 y = max(0, panel_info.vl_row - height + y + 1);
 737 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 738
 739         if ((x + width)>pwidth)
 740                 width = pwidth - x;
 741         if ((y + height)>panel_info.vl_row)
 742                 height = panel_info.vl_row - y;
 743
 744         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 745         fb   = (uchar *) (lcd_base +
 746                 (y + height - 1) * lcd_line_length + x);
 747
 748         switch (bmp_bpix) {
 749         case 4: /* Display 4b bmp at 32b lcd */
 750                 if (bpix == 32) {
 751                         /* 1. Get the color map */
 752                         unsigned int cmap_32[16];
 753                         unsigned int effective_width;
 754
 755                         for (i=0; i<colors; ++i) {
 756                                 bmp_color_table_entry_t cte = bmp->color_table[i];
 757                                 cmap_32[i] = (cte.red << 0) | (cte.green << 8) |
 758                                         (cte.blue << 16) | (cte.reserved << 24);
 759                         }
 760
 761                         /* 2. Put'em on the screen */
 762                         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 763                         fb = (uchar *) lcd_base;
 764                         fb += lcd_line_length * (y + height) + x * 4;
 765
 766                         printf("Drawing the 32bit bmp.. @ 4b (%d,%d) of [%ldx%ld] in %d (%d color)\n",
 767                                         x, y, width, height, lcd_line_length, colors);
 768                         effective_width = (width % 2) ? (width + 1) : width;
 769                         for (i = 0; i < height; ++i) {
 770                                 WATCHDOG_RESET();
 771                                 for (j = 0; j < width; j++) {
 772                                         /* TODO: read from the color map */
 773                                         int color_v;
 774                                         color_v = bmap[(j + i * effective_width) / 2];
 775                                         if ((j + i * effective_width) % 2)
 776                                                 color_v = color_v & 0xf;
 777                                         else
 778                                                 color_v = (color_v >> 4) & 0xf;
 779
 780                                         memcpy(fb, cmap_32 + color_v, 4);
 781                                         fb += 4;
 782                                 }
 783                                 fb   -= (lcd_line_length + width * 4);
 784                                 if ((i % 10) == 9) printf("+");
 785                                 if ((i % 100) == 99) printf("\n");
 786                         }
 787
 788                         printf("...\n");
 789                 }
 790                 break;
 791         case 1: /* pass through */
 792         case 8:
 793                 if (bpix != 16)
 794                         byte_width = width;
 795                 else
 796                         byte_width = width * 2;
 797
 798                 for (i = 0; i < height; ++i) {
 799                         WATCHDOG_RESET();
 800                         for (j = 0; j < width; j++) {
 801                                 if (bpix != 16) {
 802 #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD)
 803                                         *(fb++) = *(bmap++);
 804 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 805                                         *(fb++) = 255 - *(bmap++);
 806 #endif
 807                                 } else {
 808                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 809                                         fb += sizeof(uint16_t) / sizeof(*fb);
 810                                 }
 811                         }
 812                         bmap += (width - padded_line);
 813                         fb   -= (byte_width + lcd_line_length);
 814                 }
 815                 break;
 816
 817 #if defined(CONFIG_BMP_16BPP)
 818         case 16:
 819                 for (i = 0; i < height; ++i) {
 820                         WATCHDOG_RESET();
 821                         for (j = 0; j < width; j++) {
 822 #if defined(CONFIG_ATMEL_LCD_BGR555)
 823                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 824                                         (bmap[1] & 0x03);
 825                                 *(fb++) = (bmap[0] & 0xe0) |
 826                                         ((bmap[1] & 0x7c) >> 2);
 827                                 bmap += 2;
 828 #else
 829                                 *(fb++) = *(bmap++);
 830                                 *(fb++) = *(bmap++);
 831 #endif
 832                         }
 833                         bmap += (padded_line - width) * 2;
 834                         fb   -= (width * 2 + lcd_line_length);
 835                 }
 836                 break;
 837 #endif /* CONFIG_BMP_16BPP */
 838         case 32:
 839                 lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 840                 fb = (uchar *) lcd_base;
 841                 fb += lcd_line_length * (y + height) + x * 4;
 842
 843                 printf("Drawing the 32bit bmp.. @ (%d,%d) of [%ldx%ld] in %d\n",
 844                                 x, y, width, height, lcd_line_length);
 845                 for (i = 0; i < height; ++i) {
 846                         WATCHDOG_RESET();
 847                         for (j = 0; j < width; j++) {
 848                                 *(fb++) = *(bmap++);
 849                                 *(fb++) = *(bmap++);
 850                                 *(fb++) = *(bmap++);
 851                                 *(fb++) = *(bmap++);
 852                         }
 853                         //bmap += (padded_line - width) * 4;
 854                         fb   -= (lcd_line_length + width * 4);
 855                 }
 856                 break;
 857
 858         default:
 859                 break;
 860         };
 861
 862         return (0);
 863 }
 864 #endif
 865
 866 static void *lcd_logo (void)
 867 {
 868 #ifdef CONFIG_SPLASH_SCREEN
 869         char *s;
 870         ulong addr;
 871         static int do_splash = 1;
 872
 873         if (do_splash && (s = getenv("splashimage")) != NULL) {
 874                 int x = 0, y = 0;
 875                 do_splash = 0;
 876
 877                 addr = simple_strtoul (s, NULL, 16);
 878 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 879                 if ((s = getenv ("splashpos")) != NULL) {
 880                         if (s[0] == 'm')
 881                                 x = BMP_ALIGN_CENTER;
 882                         else
 883                                 x = simple_strtol (s, NULL, 0);
 884
 885                         if ((s = strchr (s + 1, ',')) != NULL) {
 886                                 if (s[1] == 'm')
 887                                         y = BMP_ALIGN_CENTER;
 888                                 else
 889                                         y = simple_strtol (s + 1, NULL, 0);
 890                         }
 891                 }
 892 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 893
 894 #ifdef CONFIG_VIDEO_BMP_GZIP
 895                 bmp_image_t *bmp = (bmp_image_t *)addr;
 896                 unsigned long len;
 897
 898                 if (!((bmp->header.signature[0]=='B') &&
 899                       (bmp->header.signature[1]=='M'))) {
 900                         addr = (ulong)gunzip_bmp(addr, &len);
 901                 }
 902 #endif
 903
 904                 if (lcd_display_bitmap (addr, x, y) == 0) {
 905                         return ((void *)lcd_base);
 906                 }
 907         }
 908 #endif /* CONFIG_SPLASH_SCREEN */
 909
 910 #ifdef CONFIG_LCD_LOGO
 911         bitmap_plot (0, 0);
 912 #endif /* CONFIG_LCD_LOGO */
 913
 914 #ifdef CONFIG_LCD_INFO
 915         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 916         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 917         lcd_show_board_info();
 918 #endif /* CONFIG_LCD_INFO */
 919
 920 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 921         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 922 #else
 923         return ((void *)lcd_base);
 924 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 925 }
 926
 927 /************************************************************************/
 928 /************************************************************************/