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 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
  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) && (LCD_BPP != LCD_COLOR16)
  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 * const 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                 int i;
 222 #if LCD_BPP == LCD_COLOR16
 223                 ushort *d = (ushort *)dest;
 224 #else
 225                 uchar *d = dest;
 226 #endif
 227
 228 #if LCD_BPP == LCD_MONOCHROME
 229                 uchar rest = *d & -(1 << (8-off));
 230                 uchar sym;
 231 #endif
 232                 for (i=0; i<count; ++i) {
 233                         uchar c, bits;
 234
 235                         c = *s++;
 236                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 237
 238 #if LCD_BPP == LCD_MONOCHROME
 239                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 240                                (COLOR_MASK(lcd_color_bg) & ~bits);
 241
 242                         *d++ = rest | (sym >> off);
 243                         rest = sym << (8-off);
 244 #elif LCD_BPP == LCD_COLOR8
 245                         for (c=0; c<8; ++c) {
 246                                 *d++ = (bits & 0x80) ?
 247                                                 lcd_color_fg : lcd_color_bg;
 248                                 bits <<= 1;
 249                         }
 250 #elif LCD_BPP == LCD_COLOR16
 251                         for (c=0; c<8; ++c) {
 252                                 *d++ = (bits & 0x80) ?
 253                                                 lcd_color_fg : lcd_color_bg;
 254                                 bits <<= 1;
 255                         }
 256 #endif
 257                 }
 258 #if LCD_BPP == LCD_MONOCHROME
 259                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 260 #endif
 261         }
 262 }
 263
 264 /*----------------------------------------------------------------------*/
 265
 266 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 267 {
 268 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 269         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 270 #else
 271         lcd_drawchars (x, y, s, strlen ((char *)s));
 272 #endif
 273 }
 274
 275 /*----------------------------------------------------------------------*/
 276
 277 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 278 {
 279 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 280         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 281 #else
 282         lcd_drawchars (x, y, &c, 1);
 283 #endif
 284 }
 285
 286 /************************************************************************/
 287 /**  Small utility to check that you got the colours right              */
 288 /************************************************************************/
 289 #ifdef LCD_TEST_PATTERN
 290
 291 #define N_BLK_VERT      2
 292 #define N_BLK_HOR       3
 293
 294 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 295         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 296         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 297 };
 298
 299 static void test_pattern (void)
 300 {
 301         ushort v_max  = panel_info.vl_row;
 302         ushort h_max  = panel_info.vl_col;
 303         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 304         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 305         ushort v, h;
 306         uchar *pix = (uchar *)lcd_base;
 307
 308         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 309                 h_max, v_max, h_step, v_step);
 310
 311         /* WARNING: Code silently assumes 8bit/pixel */
 312         for (v=0; v<v_max; ++v) {
 313                 uchar iy = v / v_step;
 314                 for (h=0; h<h_max; ++h) {
 315                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 316                         *pix++ = test_colors[ix];
 317                 }
 318         }
 319 }
 320 #endif /* LCD_TEST_PATTERN */
 321
 322
 323 /************************************************************************/
 324 /* ** GENERIC Initialization Routines                                   */
 325 /************************************************************************/
 326
 327 int drv_lcd_init (void)
 328 {
 329         struct stdio_dev lcddev;
 330         int rc;
 331
 332         lcd_base = (void *)(gd->fb_base);
 333
 334         lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 335
 336         lcd_init (lcd_base);            /* LCD initialization */
 337
 338         /* Device initialization */
 339         memset (&lcddev, 0, sizeof (lcddev));
 340
 341         strcpy (lcddev.name, "lcd");
 342         lcddev.ext   = 0;                       /* No extensions */
 343         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 344         lcddev.putc  = lcd_putc;                /* 'putc' function */
 345         lcddev.puts  = lcd_puts;                /* 'puts' function */
 346
 347         rc = stdio_register (&lcddev);
 348
 349         return (rc == 0) ? 1 : rc;
 350 }
 351
 352 /*----------------------------------------------------------------------*/
 353 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 354 {
 355 #if LCD_BPP == LCD_MONOCHROME
 356         /* Setting the palette */
 357         lcd_initcolregs();
 358
 359 #elif LCD_BPP == LCD_COLOR8
 360         /* Setting the palette */
 361         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 362         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 363         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 364         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 365         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 366         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 367         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 368         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 369         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 370 #endif
 371
 372 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 373         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 374         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 375 #else
 376         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 377         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 378 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 379
 380 #ifdef  LCD_TEST_PATTERN
 381         test_pattern();
 382 #else
 383         /* set framebuffer to background color */
 384         memset ((char *)lcd_base,
 385                 COLOR_MASK(lcd_getbgcolor()),
 386                 lcd_line_length*panel_info.vl_row);
 387 #endif
 388         /* Paint the logo and retrieve LCD base address */
 389         debug ("[LCD] Drawing the logo...\n");
 390         lcd_console_address = lcd_logo ();
 391
 392         console_col = 0;
 393         console_row = 0;
 394
 395         return (0);
 396 }
 397
 398 U_BOOT_CMD(
 399         cls,    1,      1,      lcd_clear,
 400         "clear screen",
 401         ""
 402 );
 403
 404 /*----------------------------------------------------------------------*/
 405
 406 static int lcd_init (void *lcdbase)
 407 {
 408         /* Initialize the lcd controller */
 409         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 410
 411         lcd_ctrl_init (lcdbase);
 412         lcd_is_enabled = 1;
 413         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 414         lcd_enable ();
 415
 416         /* Initialize the console */
 417         console_col = 0;
 418 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 419         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 420 #else
 421         console_row = 1;        /* leave 1 blank line below logo */
 422 #endif
 423
 424         return 0;
 425 }
 426
 427
 428 /************************************************************************/
 429 /* ** ROM capable initialization part - needed to reserve FB memory     */
 430 /************************************************************************/
 431 /*
 432  * This is called early in the system initialization to grab memory
 433  * for the LCD controller.
 434  * Returns new address for monitor, after reserving LCD buffer memory
 435  *
 436  * Note that this is running from ROM, so no write access to global data.
 437  */
 438 ulong lcd_setmem (ulong addr)
 439 {
 440         ulong size;
 441         int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 442
 443         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 444                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 445
 446         size = line_length * panel_info.vl_row;
 447
 448         /* Round up to nearest full page */
 449         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 450
 451         /* Allocate pages for the frame buffer. */
 452         addr -= size;
 453
 454         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 455
 456         return (addr);
 457 }
 458
 459 /*----------------------------------------------------------------------*/
 460
 461 static void lcd_setfgcolor (int color)
 462 {
 463         lcd_color_fg = color;
 464 }
 465
 466 /*----------------------------------------------------------------------*/
 467
 468 static void lcd_setbgcolor (int color)
 469 {
 470         lcd_color_bg = color;
 471 }
 472
 473 /*----------------------------------------------------------------------*/
 474
 475 #ifdef  NOT_USED_SO_FAR
 476 static int lcd_getfgcolor (void)
 477 {
 478         return lcd_color_fg;
 479 }
 480 #endif  /* NOT_USED_SO_FAR */
 481
 482 /*----------------------------------------------------------------------*/
 483
 484 static int lcd_getbgcolor (void)
 485 {
 486         return lcd_color_bg;
 487 }
 488
 489 /*----------------------------------------------------------------------*/
 490
 491 /************************************************************************/
 492 /* ** Chipset depending Bitmap / Logo stuff...                          */
 493 /************************************************************************/
 494 #ifdef CONFIG_LCD_LOGO
 495 void bitmap_plot (int x, int y)
 496 {
 497 #ifdef CONFIG_ATMEL_LCD
 498         uint *cmap;
 499 #else
 500         ushort *cmap;
 501 #endif
 502         ushort i, j;
 503         uchar *bmap;
 504         uchar *fb;
 505         ushort *fb16;
 506 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 507         struct pxafb_info *fbi = &panel_info.pxa;
 508 #elif defined(CONFIG_MPC823)
 509         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 510         volatile cpm8xx_t *cp = &(immr->im_cpm);
 511 #endif
 512
 513         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 514                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 515                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 516
 517         bmap = &bmp_logo_bitmap[0];
 518         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 519
 520         if (NBITS(panel_info.vl_bpix) < 12) {
 521                 /* Leave room for default color map */
 522 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 523                 cmap = (ushort *)fbi->palette;
 524 #elif defined(CONFIG_MPC823)
 525                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 526 #elif defined(CONFIG_ATMEL_LCD)
 527                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 528 #else
 529                 /*
 530                  * default case: generic system with no cmap (most likely 16bpp)
 531                  * We set cmap to the source palette, so no change is done.
 532                  * This avoids even more ifdef in the next stanza
 533                  */
 534                 cmap = bmp_logo_palette;
 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                 u16 col16;
 574                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 575                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 576                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 577                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 578                                 fb16[j] =
 579                                         ((col16 & 0x000F) << 1) |
 580                                         ((col16 & 0x00F0) << 3) |
 581                                         ((col16 & 0x0F00) << 4);
 582                                 }
 583                         bmap += BMP_LOGO_WIDTH;
 584                         fb16 += panel_info.vl_col;
 585                 }
 586         }
 587
 588         WATCHDOG_RESET();
 589 }
 590 #endif /* CONFIG_LCD_LOGO */
 591
 592 /*----------------------------------------------------------------------*/
 593 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 594 /*
 595  * Display the BMP file located at address bmp_image.
 596  * Only uncompressed.
 597  */
 598
 599 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 600 #define BMP_ALIGN_CENTER        0x7FFF
 601 #endif
 602
 603 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 604 {
 605 #if !defined(CONFIG_MCC200)
 606         ushort *cmap = NULL;
 607 #endif
 608         ushort *cmap_base = NULL;
 609         ushort i, j;
 610         uchar *fb;
 611         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 612         uchar *bmap;
 613         ushort padded_line;
 614         unsigned long width, height, byte_width;
 615         unsigned long pwidth = panel_info.vl_col;
 616         unsigned colors, bpix, bmp_bpix;
 617         unsigned long compression;
 618 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 619         struct pxafb_info *fbi = &panel_info.pxa;
 620 #elif defined(CONFIG_MPC823)
 621         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 622         volatile cpm8xx_t *cp = &(immr->im_cpm);
 623 #endif
 624
 625         if (!((bmp->header.signature[0]=='B') &&
 626                 (bmp->header.signature[1]=='M'))) {
 627                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 628                 return 1;
 629         }
 630
 631         width = le32_to_cpu (bmp->header.width);
 632         height = le32_to_cpu (bmp->header.height);
 633         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 634         colors = 1 << bmp_bpix;
 635         compression = le32_to_cpu (bmp->header.compression);
 636
 637         bpix = NBITS(panel_info.vl_bpix);
 638
 639         if ((bpix != 1) && (bpix != 8) && (bpix != 16)) {
 640                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 641                         bpix, bmp_bpix);
 642                 return 1;
 643         }
 644
 645         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 646         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16)) {
 647                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 648                         bpix,
 649                         le16_to_cpu(bmp->header.bit_count));
 650                 return 1;
 651         }
 652
 653         debug ("Display-bmp: %d x %d  with %d colors\n",
 654                 (int)width, (int)height, (int)colors);
 655
 656 #if !defined(CONFIG_MCC200)
 657         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 658         if (bmp_bpix == 8) {
 659 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 660                 cmap = (ushort *)fbi->palette;
 661 #elif defined(CONFIG_MPC823)
 662                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 663 #elif !defined(CONFIG_ATMEL_LCD)
 664                 cmap = panel_info.cmap;
 665 #endif
 666
 667                 cmap_base = cmap;
 668
 669                 /* Set color map */
 670                 for (i=0; i<colors; ++i) {
 671                         bmp_color_table_entry_t cte = bmp->color_table[i];
 672 #if !defined(CONFIG_ATMEL_LCD)
 673                         ushort colreg =
 674                                 ( ((cte.red)   << 8) & 0xf800) |
 675                                 ( ((cte.green) << 3) & 0x07e0) |
 676                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 677 #ifdef CONFIG_SYS_INVERT_COLORS
 678                         *cmap = 0xffff - colreg;
 679 #else
 680                         *cmap = colreg;
 681 #endif
 682 #if defined(CONFIG_MPC823)
 683                         cmap--;
 684 #else
 685                         cmap++;
 686 #endif
 687 #else /* CONFIG_ATMEL_LCD */
 688                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 689 #endif
 690                 }
 691         }
 692 #endif
 693
 694         /*
 695          *  BMP format for Monochrome assumes that the state of a
 696          * pixel is described on a per Bit basis, not per Byte.
 697          *  So, in case of Monochrome BMP we should align widths
 698          * on a byte boundary and convert them from Bit to Byte
 699          * units.
 700          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 701          * their own ways, so make the converting to be MCC200
 702          * specific.
 703          */
 704 #if defined(CONFIG_MCC200)
 705         if (bpix==1)
 706         {
 707                 width = ((width + 7) & ~7) >> 3;
 708                 x     = ((x + 7) & ~7) >> 3;
 709                 pwidth= ((pwidth + 7) & ~7) >> 3;
 710         }
 711 #endif
 712
 713         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 714
 715 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 716         if (x == BMP_ALIGN_CENTER)
 717                 x = max(0, (pwidth - width) / 2);
 718         else if (x < 0)
 719                 x = max(0, pwidth - width + x + 1);
 720
 721         if (y == BMP_ALIGN_CENTER)
 722                 y = max(0, (panel_info.vl_row - height) / 2);
 723         else if (y < 0)
 724                 y = max(0, panel_info.vl_row - height + y + 1);
 725 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 726
 727         if ((x + width)>pwidth)
 728                 width = pwidth - x;
 729         if ((y + height)>panel_info.vl_row)
 730                 height = panel_info.vl_row - y;
 731
 732         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 733         fb   = (uchar *) (lcd_base +
 734                 (y + height - 1) * lcd_line_length + x);
 735
 736         switch (bmp_bpix) {
 737         case 1: /* pass through */
 738         case 8:
 739                 if (bpix != 16)
 740                         byte_width = width;
 741                 else
 742                         byte_width = width * 2;
 743
 744                 for (i = 0; i < height; ++i) {
 745                         WATCHDOG_RESET();
 746                         for (j = 0; j < width; j++) {
 747                                 if (bpix != 16) {
 748 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS || defined(CONFIG_ATMEL_LCD)
 749                                         *(fb++) = *(bmap++);
 750 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 751                                         *(fb++) = 255 - *(bmap++);
 752 #endif
 753                                 } else {
 754                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 755                                         fb += sizeof(uint16_t) / sizeof(*fb);
 756                                 }
 757                         }
 758                         bmap += (width - padded_line);
 759                         fb   -= (byte_width + lcd_line_length);
 760                 }
 761                 break;
 762
 763 #if defined(CONFIG_BMP_16BPP)
 764         case 16:
 765                 for (i = 0; i < height; ++i) {
 766                         WATCHDOG_RESET();
 767                         for (j = 0; j < width; j++) {
 768 #if defined(CONFIG_ATMEL_LCD_BGR555)
 769                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 770                                         (bmap[1] & 0x03);
 771                                 *(fb++) = (bmap[0] & 0xe0) |
 772                                         ((bmap[1] & 0x7c) >> 2);
 773                                 bmap += 2;
 774 #else
 775                                 *(fb++) = *(bmap++);
 776                                 *(fb++) = *(bmap++);
 777 #endif
 778                         }
 779                         bmap += (padded_line - width) * 2;
 780                         fb   -= (width * 2 + lcd_line_length);
 781                 }
 782                 break;
 783 #endif /* CONFIG_BMP_16BPP */
 784
 785         default:
 786                 break;
 787         };
 788
 789         return (0);
 790 }
 791 #endif
 792
 793 static void *lcd_logo (void)
 794 {
 795 #ifdef CONFIG_SPLASH_SCREEN
 796         char *s;
 797         ulong addr;
 798         static int do_splash = 1;
 799
 800         if (do_splash && (s = getenv("splashimage")) != NULL) {
 801                 int x = 0, y = 0;
 802                 do_splash = 0;
 803
 804                 addr = simple_strtoul (s, NULL, 16);
 805 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 806                 if ((s = getenv ("splashpos")) != NULL) {
 807                         if (s[0] == 'm')
 808                                 x = BMP_ALIGN_CENTER;
 809                         else
 810                                 x = simple_strtol (s, NULL, 0);
 811
 812                         if ((s = strchr (s + 1, ',')) != NULL) {
 813                                 if (s[1] == 'm')
 814                                         y = BMP_ALIGN_CENTER;
 815                                 else
 816                                         y = simple_strtol (s + 1, NULL, 0);
 817                         }
 818                 }
 819 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 820
 821 #ifdef CONFIG_VIDEO_BMP_GZIP
 822                 bmp_image_t *bmp = (bmp_image_t *)addr;
 823                 unsigned long len;
 824
 825                 if (!((bmp->header.signature[0]=='B') &&
 826                       (bmp->header.signature[1]=='M'))) {
 827                         addr = (ulong)gunzip_bmp(addr, &len);
 828                 }
 829 #endif
 830
 831                 if (lcd_display_bitmap (addr, x, y) == 0) {
 832                         return ((void *)lcd_base);
 833                 }
 834         }
 835 #endif /* CONFIG_SPLASH_SCREEN */
 836
 837 #ifdef CONFIG_LCD_LOGO
 838         bitmap_plot (0, 0);
 839 #endif /* CONFIG_LCD_LOGO */
 840
 841 #ifdef CONFIG_LCD_INFO
 842         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 843         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 844         lcd_show_board_info();
 845 #endif /* CONFIG_LCD_INFO */
 846
 847 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 848         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 849 #else
 850         return ((void *)lcd_base);
 851 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 852 }
 853
 854 /************************************************************************/
 855 /************************************************************************/