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_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
  45         defined(CONFIG_CPU_MONAHANS)
  46 #define CONFIG_CPU_PXA
  47 #include <asm/byteorder.h>
  48 #endif
  49
  50 #if defined(CONFIG_MPC823)
  51 #include <lcdvideo.h>
  52 #endif
  53
  54 #if defined(CONFIG_ATMEL_LCD)
  55 #include <atmel_lcdc.h>
  56 #endif
  57
  58 /************************************************************************/
  59 /* ** FONT DATA                                                         */
  60 /************************************************************************/
  61 #include <video_font.h>         /* Get font data, width and height      */
  62 #include <video_font_data.h>
  63
  64 /************************************************************************/
  65 /* ** LOGO DATA                                                         */
  66 /************************************************************************/
  67 #ifdef CONFIG_LCD_LOGO
  68 # include <bmp_logo.h>          /* Get logo data, width and height      */
  69 # include <bmp_logo_data.h>
  70 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  71 #  error Default Color Map overlaps with Logo Color Map
  72 # endif
  73 #endif
  74
  75 DECLARE_GLOBAL_DATA_PTR;
  76
  77 ulong lcd_setmem (ulong addr);
  78
  79 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  80 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  81 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  82
  83 static int lcd_init (void *lcdbase);
  84
  85 static void *lcd_logo (void);
  86
  87 static int lcd_getbgcolor (void);
  88 static void lcd_setfgcolor (int color);
  89 static void lcd_setbgcolor (int color);
  90
  91 char lcd_is_enabled = 0;
  92
  93 #ifdef  NOT_USED_SO_FAR
  94 static void lcd_getcolreg (ushort regno,
  95                                 ushort *red, ushort *green, ushort *blue);
  96 static int lcd_getfgcolor (void);
  97 #endif  /* NOT_USED_SO_FAR */
  98
  99 /************************************************************************/
 100
 101 /*----------------------------------------------------------------------*/
 102
 103 static void console_scrollup (void)
 104 {
 105         /* Copy up rows ignoring the first one */
 106         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 107
 108         /* Clear the last one */
 109         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 110 }
 111
 112 /*----------------------------------------------------------------------*/
 113
 114 static inline void console_back (void)
 115 {
 116         if (--console_col < 0) {
 117                 console_col = CONSOLE_COLS-1 ;
 118                 if (--console_row < 0) {
 119                         console_row = 0;
 120                 }
 121         }
 122
 123         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 124                      console_row * VIDEO_FONT_HEIGHT,
 125                      ' ');
 126 }
 127
 128 /*----------------------------------------------------------------------*/
 129
 130 static inline void console_newline (void)
 131 {
 132         ++console_row;
 133         console_col = 0;
 134
 135         /* Check if we need to scroll the terminal */
 136         if (console_row >= CONSOLE_ROWS) {
 137                 /* Scroll everything up */
 138                 console_scrollup () ;
 139                 --console_row;
 140         }
 141 }
 142
 143 /*----------------------------------------------------------------------*/
 144
 145 void lcd_putc (const char c)
 146 {
 147         if (!lcd_is_enabled) {
 148                 serial_putc(c);
 149                 return;
 150         }
 151
 152         switch (c) {
 153         case '\r':      console_col = 0;
 154                         return;
 155
 156         case '\n':      console_newline();
 157                         return;
 158
 159         case '\t':      /* Tab (8 chars alignment) */
 160                         console_col +=  8;
 161                         console_col &= ~7;
 162
 163                         if (console_col >= CONSOLE_COLS) {
 164                                 console_newline();
 165                         }
 166                         return;
 167
 168         case '\b':      console_back();
 169                         return;
 170
 171         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 172                                      console_row * VIDEO_FONT_HEIGHT,
 173                                      c);
 174                         if (++console_col >= CONSOLE_COLS) {
 175                                 console_newline();
 176                         }
 177                         return;
 178         }
 179         /* NOTREACHED */
 180 }
 181
 182 /*----------------------------------------------------------------------*/
 183
 184 void lcd_puts (const char *s)
 185 {
 186         if (!lcd_is_enabled) {
 187                 serial_puts (s);
 188                 return;
 189         }
 190
 191         while (*s) {
 192                 lcd_putc (*s++);
 193         }
 194 }
 195
 196 /*----------------------------------------------------------------------*/
 197
 198 void lcd_printf(const char *fmt, ...)
 199 {
 200         va_list args;
 201         char buf[CONFIG_SYS_PBSIZE];
 202
 203         va_start(args, fmt);
 204         vsprintf(buf, fmt, args);
 205         va_end(args);
 206
 207         lcd_puts(buf);
 208 }
 209
 210 /************************************************************************/
 211 /* ** Low-Level Graphics Routines                                       */
 212 /************************************************************************/
 213
 214 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 215 {
 216         uchar *dest;
 217         ushort row;
 218
 219 #if LCD_BPP == LCD_MONOCHROME
 220         ushort off  = x * (1 << LCD_BPP) % 8;
 221 #endif
 222
 223         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 224
 225         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 226                 uchar *s = str;
 227                 int i;
 228 #if LCD_BPP == LCD_COLOR16
 229                 ushort *d = (ushort *)dest;
 230 #else
 231                 uchar *d = dest;
 232 #endif
 233
 234 #if LCD_BPP == LCD_MONOCHROME
 235                 uchar rest = *d & -(1 << (8-off));
 236                 uchar sym;
 237 #endif
 238                 for (i=0; i<count; ++i) {
 239                         uchar c, bits;
 240
 241                         c = *s++;
 242                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 243
 244 #if LCD_BPP == LCD_MONOCHROME
 245                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 246                                (COLOR_MASK(lcd_color_bg) & ~bits);
 247
 248                         *d++ = rest | (sym >> off);
 249                         rest = sym << (8-off);
 250 #elif LCD_BPP == LCD_COLOR8
 251                         for (c=0; c<8; ++c) {
 252                                 *d++ = (bits & 0x80) ?
 253                                                 lcd_color_fg : lcd_color_bg;
 254                                 bits <<= 1;
 255                         }
 256 #elif LCD_BPP == LCD_COLOR16
 257                         for (c=0; c<8; ++c) {
 258                                 *d++ = (bits & 0x80) ?
 259                                                 lcd_color_fg : lcd_color_bg;
 260                                 bits <<= 1;
 261                         }
 262 #endif
 263                 }
 264 #if LCD_BPP == LCD_MONOCHROME
 265                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 266 #endif
 267         }
 268 }
 269
 270 /*----------------------------------------------------------------------*/
 271
 272 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 273 {
 274 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 275         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 276 #else
 277         lcd_drawchars (x, y, s, strlen ((char *)s));
 278 #endif
 279 }
 280
 281 /*----------------------------------------------------------------------*/
 282
 283 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 284 {
 285 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 286         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 287 #else
 288         lcd_drawchars (x, y, &c, 1);
 289 #endif
 290 }
 291
 292 /************************************************************************/
 293 /**  Small utility to check that you got the colours right              */
 294 /************************************************************************/
 295 #ifdef LCD_TEST_PATTERN
 296
 297 #define N_BLK_VERT      2
 298 #define N_BLK_HOR       3
 299
 300 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 301         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 302         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 303 };
 304
 305 static void test_pattern (void)
 306 {
 307         ushort v_max  = panel_info.vl_row;
 308         ushort h_max  = panel_info.vl_col;
 309         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 310         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 311         ushort v, h;
 312         uchar *pix = (uchar *)lcd_base;
 313
 314         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 315                 h_max, v_max, h_step, v_step);
 316
 317         /* WARNING: Code silently assumes 8bit/pixel */
 318         for (v=0; v<v_max; ++v) {
 319                 uchar iy = v / v_step;
 320                 for (h=0; h<h_max; ++h) {
 321                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 322                         *pix++ = test_colors[ix];
 323                 }
 324         }
 325 }
 326 #endif /* LCD_TEST_PATTERN */
 327
 328
 329 /************************************************************************/
 330 /* ** GENERIC Initialization Routines                                   */
 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 * NBITS (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
 360 int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 361 {
 362         lcd_clear();
 363         return 0;
 364 }
 365
 366 void lcd_clear(void)
 367 {
 368 #if LCD_BPP == LCD_MONOCHROME
 369         /* Setting the palette */
 370         lcd_initcolregs();
 371
 372 #elif LCD_BPP == LCD_COLOR8
 373         /* Setting the palette */
 374         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 375         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 376         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 377         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 378         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 379         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 380         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 381         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 382         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 383 #endif
 384
 385 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 386         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 387         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 388 #else
 389         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 390         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 391 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 392
 393 #ifdef  LCD_TEST_PATTERN
 394         test_pattern();
 395 #else
 396         /* set framebuffer to background color */
 397         memset ((char *)lcd_base,
 398                 COLOR_MASK(lcd_getbgcolor()),
 399                 lcd_line_length*panel_info.vl_row);
 400 #endif
 401         /* Paint the logo and retrieve LCD base address */
 402         debug ("[LCD] Drawing the logo...\n");
 403         lcd_console_address = lcd_logo ();
 404
 405         console_col = 0;
 406         console_row = 0;
 407 }
 408
 409 U_BOOT_CMD(
 410         cls,    1,      1,      do_lcd_clear,
 411         "clear screen",
 412         ""
 413 );
 414
 415 /*----------------------------------------------------------------------*/
 416
 417 static int lcd_init (void *lcdbase)
 418 {
 419         /* Initialize the lcd controller */
 420         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 421
 422         lcd_ctrl_init (lcdbase);
 423         lcd_is_enabled = 1;
 424         lcd_clear();
 425         lcd_enable ();
 426
 427         /* Initialize the console */
 428         console_col = 0;
 429 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 430         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 431 #else
 432         console_row = 1;        /* leave 1 blank line below logo */
 433 #endif
 434
 435         return 0;
 436 }
 437
 438
 439 /************************************************************************/
 440 /* ** ROM capable initialization part - needed to reserve FB memory     */
 441 /************************************************************************/
 442 /*
 443  * This is called early in the system initialization to grab memory
 444  * for the LCD controller.
 445  * Returns new address for monitor, after reserving LCD buffer memory
 446  *
 447  * Note that this is running from ROM, so no write access to global data.
 448  */
 449 ulong lcd_setmem (ulong addr)
 450 {
 451         ulong size;
 452         int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 453
 454         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 455                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 456
 457         size = line_length * panel_info.vl_row;
 458
 459         /* Round up to nearest full page */
 460         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 461
 462         /* Allocate pages for the frame buffer. */
 463         addr -= size;
 464
 465         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 466
 467         return (addr);
 468 }
 469
 470 /*----------------------------------------------------------------------*/
 471
 472 static void lcd_setfgcolor (int color)
 473 {
 474         lcd_color_fg = color;
 475 }
 476
 477 /*----------------------------------------------------------------------*/
 478
 479 static void lcd_setbgcolor (int color)
 480 {
 481         lcd_color_bg = color;
 482 }
 483
 484 /*----------------------------------------------------------------------*/
 485
 486 #ifdef  NOT_USED_SO_FAR
 487 static int lcd_getfgcolor (void)
 488 {
 489         return lcd_color_fg;
 490 }
 491 #endif  /* NOT_USED_SO_FAR */
 492
 493 /*----------------------------------------------------------------------*/
 494
 495 static int lcd_getbgcolor (void)
 496 {
 497         return lcd_color_bg;
 498 }
 499
 500 /*----------------------------------------------------------------------*/
 501
 502 /************************************************************************/
 503 /* ** Chipset depending Bitmap / Logo stuff...                          */
 504 /************************************************************************/
 505 #ifdef CONFIG_LCD_LOGO
 506 void bitmap_plot (int x, int y)
 507 {
 508 #ifdef CONFIG_ATMEL_LCD
 509         uint *cmap;
 510 #else
 511         ushort *cmap;
 512 #endif
 513         ushort i, j;
 514         uchar *bmap;
 515         uchar *fb;
 516         ushort *fb16;
 517 #if defined(CONFIG_CPU_PXA)
 518         struct pxafb_info *fbi = &panel_info.pxa;
 519 #elif defined(CONFIG_MPC823)
 520         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 521         volatile cpm8xx_t *cp = &(immr->im_cpm);
 522 #endif
 523
 524         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 525                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 526                 ARRAY_SIZE(bmp_logo_palette));
 527
 528         bmap = &bmp_logo_bitmap[0];
 529         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 530
 531         if (NBITS(panel_info.vl_bpix) < 12) {
 532                 /* Leave room for default color map */
 533 #if defined(CONFIG_CPU_PXA)
 534                 cmap = (ushort *)fbi->palette;
 535 #elif defined(CONFIG_MPC823)
 536                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 537 #elif defined(CONFIG_ATMEL_LCD)
 538                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 539 #else
 540                 /*
 541                  * default case: generic system with no cmap (most likely 16bpp)
 542                  * We set cmap to the source palette, so no change is done.
 543                  * This avoids even more ifdef in the next stanza
 544                  */
 545                 cmap = bmp_logo_palette;
 546 #endif
 547
 548                 WATCHDOG_RESET();
 549
 550                 /* Set color map */
 551                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
 552                         ushort colreg = bmp_logo_palette[i];
 553 #ifdef CONFIG_ATMEL_LCD
 554                         uint lut_entry;
 555 #ifdef CONFIG_ATMEL_LCD_BGR555
 556                         lut_entry = ((colreg & 0x000F) << 11) |
 557                                     ((colreg & 0x00F0) <<  2) |
 558                                     ((colreg & 0x0F00) >>  7);
 559 #else /* CONFIG_ATMEL_LCD_RGB565 */
 560                         lut_entry = ((colreg & 0x000F) << 1) |
 561                                     ((colreg & 0x00F0) << 3) |
 562                                     ((colreg & 0x0F00) << 4);
 563 #endif
 564                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 565                         cmap++;
 566 #else /* !CONFIG_ATMEL_LCD */
 567 #ifdef  CONFIG_SYS_INVERT_COLORS
 568                         *cmap++ = 0xffff - colreg;
 569 #else
 570                         *cmap++ = colreg;
 571 #endif
 572 #endif /* CONFIG_ATMEL_LCD */
 573                 }
 574
 575                 WATCHDOG_RESET();
 576
 577                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 578                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 579                         bmap += BMP_LOGO_WIDTH;
 580                         fb   += panel_info.vl_col;
 581                 }
 582         }
 583         else { /* true color mode */
 584                 u16 col16;
 585                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 586                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 587                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 588                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 589                                 fb16[j] =
 590                                         ((col16 & 0x000F) << 1) |
 591                                         ((col16 & 0x00F0) << 3) |
 592                                         ((col16 & 0x0F00) << 4);
 593                                 }
 594                         bmap += BMP_LOGO_WIDTH;
 595                         fb16 += panel_info.vl_col;
 596                 }
 597         }
 598
 599         WATCHDOG_RESET();
 600 }
 601 #endif /* CONFIG_LCD_LOGO */
 602
 603 /*----------------------------------------------------------------------*/
 604 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 605 /*
 606  * Display the BMP file located at address bmp_image.
 607  * Only uncompressed.
 608  */
 609
 610 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 611 #define BMP_ALIGN_CENTER        0x7FFF
 612 #endif
 613
 614 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 615 {
 616 #if !defined(CONFIG_MCC200)
 617         ushort *cmap = NULL;
 618 #endif
 619         ushort *cmap_base = NULL;
 620         ushort i, j;
 621         uchar *fb;
 622         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 623         uchar *bmap;
 624         ushort padded_line;
 625         unsigned long width, height, byte_width;
 626         unsigned long pwidth = panel_info.vl_col;
 627         unsigned colors, bpix, bmp_bpix;
 628 #if defined(CONFIG_CPU_PXA)
 629         struct pxafb_info *fbi = &panel_info.pxa;
 630 #elif defined(CONFIG_MPC823)
 631         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 632         volatile cpm8xx_t *cp = &(immr->im_cpm);
 633 #endif
 634
 635         if (!((bmp->header.signature[0]=='B') &&
 636                 (bmp->header.signature[1]=='M'))) {
 637                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 638                 return 1;
 639         }
 640
 641         width = le32_to_cpu (bmp->header.width);
 642         height = le32_to_cpu (bmp->header.height);
 643         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 644         colors = 1 << bmp_bpix;
 645
 646         bpix = NBITS(panel_info.vl_bpix);
 647
 648         if ((bpix != 1) && (bpix != 8) && (bpix != 16)) {
 649                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 650                         bpix, bmp_bpix);
 651                 return 1;
 652         }
 653
 654         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 655         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16)) {
 656                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 657                         bpix,
 658                         le16_to_cpu(bmp->header.bit_count));
 659                 return 1;
 660         }
 661
 662         debug ("Display-bmp: %d x %d  with %d colors\n",
 663                 (int)width, (int)height, (int)colors);
 664
 665 #if !defined(CONFIG_MCC200)
 666         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 667         if (bmp_bpix == 8) {
 668 #if defined(CONFIG_CPU_PXA)
 669                 cmap = (ushort *)fbi->palette;
 670 #elif defined(CONFIG_MPC823)
 671                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 672 #elif !defined(CONFIG_ATMEL_LCD)
 673                 cmap = panel_info.cmap;
 674 #endif
 675
 676                 cmap_base = cmap;
 677
 678                 /* Set color map */
 679                 for (i=0; i<colors; ++i) {
 680                         bmp_color_table_entry_t cte = bmp->color_table[i];
 681 #if !defined(CONFIG_ATMEL_LCD)
 682                         ushort colreg =
 683                                 ( ((cte.red)   << 8) & 0xf800) |
 684                                 ( ((cte.green) << 3) & 0x07e0) |
 685                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 686 #ifdef CONFIG_SYS_INVERT_COLORS
 687                         *cmap = 0xffff - colreg;
 688 #else
 689                         *cmap = colreg;
 690 #endif
 691 #if defined(CONFIG_MPC823)
 692                         cmap--;
 693 #else
 694                         cmap++;
 695 #endif
 696 #else /* CONFIG_ATMEL_LCD */
 697                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 698 #endif
 699                 }
 700         }
 701 #endif
 702
 703         /*
 704          *  BMP format for Monochrome assumes that the state of a
 705          * pixel is described on a per Bit basis, not per Byte.
 706          *  So, in case of Monochrome BMP we should align widths
 707          * on a byte boundary and convert them from Bit to Byte
 708          * units.
 709          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 710          * their own ways, so make the converting to be MCC200
 711          * specific.
 712          */
 713 #if defined(CONFIG_MCC200)
 714         if (bpix==1)
 715         {
 716                 width = ((width + 7) & ~7) >> 3;
 717                 x     = ((x + 7) & ~7) >> 3;
 718                 pwidth= ((pwidth + 7) & ~7) >> 3;
 719         }
 720 #endif
 721
 722         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 723
 724 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 725         if (x == BMP_ALIGN_CENTER)
 726                 x = max(0, (pwidth - width) / 2);
 727         else if (x < 0)
 728                 x = max(0, pwidth - width + x + 1);
 729
 730         if (y == BMP_ALIGN_CENTER)
 731                 y = max(0, (panel_info.vl_row - height) / 2);
 732         else if (y < 0)
 733                 y = max(0, panel_info.vl_row - height + y + 1);
 734 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 735
 736         if ((x + width)>pwidth)
 737                 width = pwidth - x;
 738         if ((y + height)>panel_info.vl_row)
 739                 height = panel_info.vl_row - y;
 740
 741         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 742         fb   = (uchar *) (lcd_base +
 743                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 744
 745         switch (bmp_bpix) {
 746         case 1: /* pass through */
 747         case 8:
 748                 if (bpix != 16)
 749                         byte_width = width;
 750                 else
 751                         byte_width = width * 2;
 752
 753                 for (i = 0; i < height; ++i) {
 754                         WATCHDOG_RESET();
 755                         for (j = 0; j < width; j++) {
 756                                 if (bpix != 16) {
 757 #if defined(CONFIG_CPU_PXA) || defined(CONFIG_ATMEL_LCD)
 758                                         *(fb++) = *(bmap++);
 759 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 760                                         *(fb++) = 255 - *(bmap++);
 761 #endif
 762                                 } else {
 763                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 764                                         fb += sizeof(uint16_t) / sizeof(*fb);
 765                                 }
 766                         }
 767                         bmap += (width - padded_line);
 768                         fb   -= (byte_width + lcd_line_length);
 769                 }
 770                 break;
 771
 772 #if defined(CONFIG_BMP_16BPP)
 773         case 16:
 774                 for (i = 0; i < height; ++i) {
 775                         WATCHDOG_RESET();
 776                         for (j = 0; j < width; j++) {
 777 #if defined(CONFIG_ATMEL_LCD_BGR555)
 778                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 779                                         (bmap[1] & 0x03);
 780                                 *(fb++) = (bmap[0] & 0xe0) |
 781                                         ((bmap[1] & 0x7c) >> 2);
 782                                 bmap += 2;
 783 #else
 784                                 *(fb++) = *(bmap++);
 785                                 *(fb++) = *(bmap++);
 786 #endif
 787                         }
 788                         bmap += (padded_line - width) * 2;
 789                         fb   -= (width * 2 + lcd_line_length);
 790                 }
 791                 break;
 792 #endif /* CONFIG_BMP_16BPP */
 793
 794         default:
 795                 break;
 796         };
 797
 798         return (0);
 799 }
 800 #endif
 801
 802 static void *lcd_logo (void)
 803 {
 804 #ifdef CONFIG_SPLASH_SCREEN
 805         char *s;
 806         ulong addr;
 807         static int do_splash = 1;
 808
 809         if (do_splash && (s = getenv("splashimage")) != NULL) {
 810                 int x = 0, y = 0;
 811                 do_splash = 0;
 812
 813                 addr = simple_strtoul (s, NULL, 16);
 814 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 815                 if ((s = getenv ("splashpos")) != NULL) {
 816                         if (s[0] == 'm')
 817                                 x = BMP_ALIGN_CENTER;
 818                         else
 819                                 x = simple_strtol (s, NULL, 0);
 820
 821                         if ((s = strchr (s + 1, ',')) != NULL) {
 822                                 if (s[1] == 'm')
 823                                         y = BMP_ALIGN_CENTER;
 824                                 else
 825                                         y = simple_strtol (s + 1, NULL, 0);
 826                         }
 827                 }
 828 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 829
 830 #ifdef CONFIG_VIDEO_BMP_GZIP
 831                 bmp_image_t *bmp = (bmp_image_t *)addr;
 832                 unsigned long len;
 833
 834                 if (!((bmp->header.signature[0]=='B') &&
 835                       (bmp->header.signature[1]=='M'))) {
 836                         addr = (ulong)gunzip_bmp(addr, &len);
 837                 }
 838 #endif
 839
 840                 if (lcd_display_bitmap (addr, x, y) == 0) {
 841                         return ((void *)lcd_base);
 842                 }
 843         }
 844 #endif /* CONFIG_SPLASH_SCREEN */
 845
 846 #ifdef CONFIG_LCD_LOGO
 847         bitmap_plot (0, 0);
 848 #endif /* CONFIG_LCD_LOGO */
 849
 850 #ifdef CONFIG_LCD_INFO
 851         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 852         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 853         lcd_show_board_info();
 854 #endif /* CONFIG_LCD_INFO */
 855
 856 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 857         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 858 #else
 859         return ((void *)lcd_base);
 860 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 861 }
 862
 863 /************************************************************************/
 864 /************************************************************************/