common/lcd.c

   1 /*
   2  * Common LCD routines for supported CPUs
   3  *
   4  * (C) Copyright 2001-2002
   5  * Wolfgang Denk, DENX Software Engineering -- wd@denx.de
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 /************************************************************************/
  27 /* ** HEADER FILES                                                      */
  28 /************************************************************************/
  29
  30 /* #define DEBUG */
  31
  32 #include <config.h>
  33 #include <common.h>
  34 #include <command.h>
  35 #include <stdarg.h>
  36 #include <linux/types.h>
  37 #include <stdio_dev.h>
  38 #include <malloc.h>
  39 #if defined(CONFIG_POST)
  40 #include <post.h>
  41 #endif
  42 #include <lcd.h>
  43 #include <watchdog.h>
  44
  45 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
  46 #include <asm/byteorder.h>
  47 #endif
  48
  49 #if defined(CONFIG_MPC823)
  50 #include <lcdvideo.h>
  51 #endif
  52
  53 #if defined(CONFIG_ATMEL_LCD)
  54 #include <atmel_lcdc.h>
  55 #endif
  56
  57 /************************************************************************/
  58 /* ** FONT DATA                                                         */
  59 /************************************************************************/
  60 #include <video_font.h>         /* Get font data, width and height      */
  61
  62 /************************************************************************/
  63 /* ** LOGO DATA                                                         */
  64 /************************************************************************/
  65 #ifdef CONFIG_LCD_LOGO
  66 # include <bmp_logo.h>          /* Get logo data, width and height      */
  67 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  68 #  error Default Color Map overlaps with Logo Color Map
  69 # endif
  70 #endif
  71
  72 DECLARE_GLOBAL_DATA_PTR;
  73
  74 ulong lcd_setmem (ulong addr);
  75
  76 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  77 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  78 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  79
  80 static int lcd_init (void *lcdbase);
  81
  82 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[]);
  83 static void *lcd_logo (void);
  84
  85 static int lcd_getbgcolor (void);
  86 static void lcd_setfgcolor (int color);
  87 static void lcd_setbgcolor (int color);
  88
  89 char lcd_is_enabled = 0;
  90
  91 #ifdef  NOT_USED_SO_FAR
  92 static void lcd_getcolreg (ushort regno,
  93                                 ushort *red, ushort *green, ushort *blue);
  94 static int lcd_getfgcolor (void);
  95 #endif  /* NOT_USED_SO_FAR */
  96
  97 /************************************************************************/
  98
  99 /*----------------------------------------------------------------------*/
 100
 101 static void console_scrollup (void)
 102 {
 103         /* Copy up rows ignoring the first one */
 104         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 105
 106         /* Clear the last one */
 107         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 108 }
 109
 110 /*----------------------------------------------------------------------*/
 111
 112 static inline void console_back (void)
 113 {
 114         if (--console_col < 0) {
 115                 console_col = CONSOLE_COLS-1 ;
 116                 if (--console_row < 0) {
 117                         console_row = 0;
 118                 }
 119         }
 120
 121         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 122                      console_row * VIDEO_FONT_HEIGHT,
 123                      ' ');
 124 }
 125
 126 /*----------------------------------------------------------------------*/
 127
 128 static inline void console_newline (void)
 129 {
 130         ++console_row;
 131         console_col = 0;
 132
 133         /* Check if we need to scroll the terminal */
 134         if (console_row >= CONSOLE_ROWS) {
 135                 /* Scroll everything up */
 136                 console_scrollup () ;
 137                 --console_row;
 138         }
 139 }
 140
 141 /*----------------------------------------------------------------------*/
 142
 143 void lcd_putc (const char c)
 144 {
 145         if (!lcd_is_enabled) {
 146                 serial_putc(c);
 147                 return;
 148         }
 149
 150         switch (c) {
 151         case '\r':      console_col = 0;
 152                         return;
 153
 154         case '\n':      console_newline();
 155                         return;
 156
 157         case '\t':      /* Tab (8 chars alignment) */
 158                         console_col +=  8;
 159                         console_col &= ~7;
 160
 161                         if (console_col >= CONSOLE_COLS) {
 162                                 console_newline();
 163                         }
 164                         return;
 165
 166         case '\b':      console_back();
 167                         return;
 168
 169         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 170                                      console_row * VIDEO_FONT_HEIGHT,
 171                                      c);
 172                         if (++console_col >= CONSOLE_COLS) {
 173                                 console_newline();
 174                         }
 175                         return;
 176         }
 177         /* NOTREACHED */
 178 }
 179
 180 /*----------------------------------------------------------------------*/
 181
 182 void lcd_puts (const char *s)
 183 {
 184         if (!lcd_is_enabled) {
 185                 serial_puts (s);
 186                 return;
 187         }
 188
 189         while (*s) {
 190                 lcd_putc (*s++);
 191         }
 192 }
 193
 194 /*----------------------------------------------------------------------*/
 195
 196 void lcd_printf(const char *fmt, ...)
 197 {
 198         va_list args;
 199         char buf[CONFIG_SYS_PBSIZE];
 200
 201         va_start(args, fmt);
 202         vsprintf(buf, fmt, args);
 203         va_end(args);
 204
 205         lcd_puts(buf);
 206 }
 207
 208 /************************************************************************/
 209 /* ** Low-Level Graphics Routines                                       */
 210 /************************************************************************/
 211
 212 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 213 {
 214         uchar *dest;
 215         ushort off, row;
 216
 217         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 218         off  = x * (1 << LCD_BPP) % 8;
 219
 220         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 221                 uchar *s = str;
 222                 int i;
 223 #if LCD_BPP == LCD_COLOR16
 224                 ushort *d = (ushort *)dest;
 225 #else
 226                 uchar *d = dest;
 227 #endif
 228
 229 #if LCD_BPP == LCD_MONOCHROME
 230                 uchar rest = *d & -(1 << (8-off));
 231                 uchar sym;
 232 #endif
 233                 for (i=0; i<count; ++i) {
 234                         uchar c, bits;
 235
 236                         c = *s++;
 237                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 238
 239 #if LCD_BPP == LCD_MONOCHROME
 240                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 241                                (COLOR_MASK(lcd_color_bg) & ~bits);
 242
 243                         *d++ = rest | (sym >> off);
 244                         rest = sym << (8-off);
 245 #elif LCD_BPP == LCD_COLOR8
 246                         for (c=0; c<8; ++c) {
 247                                 *d++ = (bits & 0x80) ?
 248                                                 lcd_color_fg : lcd_color_bg;
 249                                 bits <<= 1;
 250                         }
 251 #elif LCD_BPP == LCD_COLOR16
 252                         for (c=0; c<8; ++c) {
 253                                 *d++ = (bits & 0x80) ?
 254                                                 lcd_color_fg : lcd_color_bg;
 255                                 bits <<= 1;
 256                         }
 257 #endif
 258                 }
 259 #if LCD_BPP == LCD_MONOCHROME
 260                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 261 #endif
 262         }
 263 }
 264
 265 /*----------------------------------------------------------------------*/
 266
 267 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 268 {
 269 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 270         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 271 #else
 272         lcd_drawchars (x, y, s, strlen ((char *)s));
 273 #endif
 274 }
 275
 276 /*----------------------------------------------------------------------*/
 277
 278 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 279 {
 280 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 281         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 282 #else
 283         lcd_drawchars (x, y, &c, 1);
 284 #endif
 285 }
 286
 287 /************************************************************************/
 288 /**  Small utility to check that you got the colours right              */
 289 /************************************************************************/
 290 #ifdef LCD_TEST_PATTERN
 291
 292 #define N_BLK_VERT      2
 293 #define N_BLK_HOR       3
 294
 295 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 296         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 297         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 298 };
 299
 300 static void test_pattern (void)
 301 {
 302         ushort v_max  = panel_info.vl_row;
 303         ushort h_max  = panel_info.vl_col;
 304         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 305         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 306         ushort v, h;
 307         uchar *pix = (uchar *)lcd_base;
 308
 309         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 310                 h_max, v_max, h_step, v_step);
 311
 312         /* WARNING: Code silently assumes 8bit/pixel */
 313         for (v=0; v<v_max; ++v) {
 314                 uchar iy = v / v_step;
 315                 for (h=0; h<h_max; ++h) {
 316                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 317                         *pix++ = test_colors[ix];
 318                 }
 319         }
 320 }
 321 #endif /* LCD_TEST_PATTERN */
 322
 323
 324 /************************************************************************/
 325 /* ** GENERIC Initialization Routines                                   */
 326 /************************************************************************/
 327 int drv_lcd_init_resume (void)
 328 {
 329         lcd_base = (void *)(gd->fb_base);
 330
 331         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 332
 333         lcd_init (lcd_base);            /* LCD initialization */
 334
 335         return 0;
 336 }
 337
 338 int drv_lcd_init (void)
 339 {
 340         struct stdio_dev lcddev;
 341         int rc;
 342
 343         lcd_base = (void *)(gd->fb_base);
 344
 345         lcd_init (lcd_base);            /* LCD initialization */
 346
 347         /* Device initialization */
 348         memset (&lcddev, 0, sizeof (lcddev));
 349
 350         strcpy (lcddev.name, "lcd");
 351         lcddev.ext   = 0;                       /* No extensions */
 352         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 353         lcddev.putc  = lcd_putc;                /* 'putc' function */
 354         lcddev.puts  = lcd_puts;                /* 'puts' function */
 355
 356         rc = stdio_register (&lcddev);
 357
 358         return (rc == 0) ? 1 : rc;
 359 }
 360
 361 /*----------------------------------------------------------------------*/
 362 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
 363 {
 364 #if LCD_BPP == LCD_MONOCHROME
 365         /* Setting the palette */
 366         lcd_initcolregs();
 367
 368 #elif LCD_BPP == LCD_COLOR8
 369         /* Setting the palette */
 370         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 371         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 372         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 373         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 374         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 375         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 376         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 377         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 378         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 379 #endif
 380
 381 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 382         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 383         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 384 #else
 385         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 386         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 387 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 388
 389 #ifdef  LCD_TEST_PATTERN
 390         test_pattern();
 391 #else
 392         /* set framebuffer to background color */
 393         memset ((char *)lcd_base,
 394                 COLOR_MASK(lcd_getbgcolor()),
 395                 lcd_line_length*panel_info.vl_row);
 396 #endif
 397         /* Paint the logo and retrieve LCD base address */
 398         debug ("[LCD] Drawing the logo...\n");
 399         lcd_console_address = lcd_logo ();
 400
 401         console_col = 0;
 402         console_row = 0;
 403
 404         return (0);
 405 }
 406
 407 U_BOOT_CMD(
 408         cls,    1,      1,      lcd_clear,
 409         "clear screen",
 410         ""
 411 );
 412
 413 /*----------------------------------------------------------------------*/
 414
 415 static int lcd_init (void *lcdbase)
 416 {
 417         /* Initialize the lcd controller */
 418         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 419
 420         lcd_ctrl_init (lcdbase);
 421         lcd_is_enabled = 1;
 422         lcd_enable ();
 423
 424         /* Initialize the console */
 425         console_col = 0;
 426 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 427         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 428 #else
 429         console_row = 1;        /* leave 1 blank line below logo */
 430 #endif
 431
 432         return 0;
 433 }
 434
 435
 436 /************************************************************************/
 437 /* ** ROM capable initialization part - needed to reserve FB memory     */
 438 /************************************************************************/
 439 /*
 440  * This is called early in the system initialization to grab memory
 441  * for the LCD controller.
 442  * Returns new address for monitor, after reserving LCD buffer memory
 443  *
 444  * Note that this is running from ROM, so no write access to global data.
 445  */
 446 ulong lcd_setmem (ulong addr)
 447 {
 448         ulong size;
 449         int line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 450
 451         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 452                 panel_info.vl_col, panel_info.vl_row, (panel_info.vl_bpix) );
 453
 454         size = line_length * panel_info.vl_row;
 455
 456         /* Round up to nearest full page */
 457         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 458
 459         /* Allocate pages for the frame buffer. */
 460         addr -= size;
 461
 462         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 463
 464         return (addr);
 465 }
 466
 467 /*----------------------------------------------------------------------*/
 468
 469 static void lcd_setfgcolor (int color)
 470 {
 471         lcd_color_fg = color;
 472 }
 473
 474 /*----------------------------------------------------------------------*/
 475
 476 static void lcd_setbgcolor (int color)
 477 {
 478         lcd_color_bg = color;
 479 }
 480
 481 /*----------------------------------------------------------------------*/
 482
 483 #ifdef  NOT_USED_SO_FAR
 484 static int lcd_getfgcolor (void)
 485 {
 486         return lcd_color_fg;
 487 }
 488 #endif  /* NOT_USED_SO_FAR */
 489
 490 /*----------------------------------------------------------------------*/
 491
 492 static int lcd_getbgcolor (void)
 493 {
 494         return lcd_color_bg;
 495 }
 496
 497 /*----------------------------------------------------------------------*/
 498
 499 /************************************************************************/
 500 /* ** Chipset depending Bitmap / Logo stuff...                          */
 501 /************************************************************************/
 502 #ifdef CONFIG_LCD_LOGO
 503 void bitmap_plot (int x, int y)
 504 {
 505 #ifdef CONFIG_ATMEL_LCD
 506         uint *cmap;
 507 #else
 508         ushort *cmap;
 509 #endif
 510         ushort i, j;
 511         uchar *bmap;
 512         uchar *fb;
 513         ushort *fb16;
 514 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 515         struct pxafb_info *fbi = &panel_info.pxa;
 516 #elif defined(CONFIG_MPC823)
 517         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 518         volatile cpm8xx_t *cp = &(immr->im_cpm);
 519 #endif
 520
 521         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 522                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 523                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 524
 525         bmap = &bmp_logo_bitmap[0];
 526         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 527
 528         if ((panel_info.vl_bpix) < 12) {
 529                 /* Leave room for default color map */
 530 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 531                 cmap = (ushort *)fbi->palette;
 532 #elif defined(CONFIG_MPC823)
 533                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 534 #elif defined(CONFIG_ATMEL_LCD)
 535                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 536 #else
 537                 /*
 538                  * default case: generic system with no cmap (most likely 16bpp)
 539                  * We set cmap to the source palette, so no change is done.
 540                  * This avoids even more ifdef in the next stanza
 541                  */
 542                 cmap = bmp_logo_palette;
 543 #endif
 544
 545                 WATCHDOG_RESET();
 546
 547                 /* Set color map */
 548                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 549                         ushort colreg = bmp_logo_palette[i];
 550 #ifdef CONFIG_ATMEL_LCD
 551                         uint lut_entry;
 552 #ifdef CONFIG_ATMEL_LCD_BGR555
 553                         lut_entry = ((colreg & 0x000F) << 11) |
 554                                     ((colreg & 0x00F0) <<  2) |
 555                                     ((colreg & 0x0F00) >>  7);
 556 #else /* CONFIG_ATMEL_LCD_RGB565 */
 557                         lut_entry = ((colreg & 0x000F) << 1) |
 558                                     ((colreg & 0x00F0) << 3) |
 559                                     ((colreg & 0x0F00) << 4);
 560 #endif
 561                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 562                         cmap++;
 563 #else /* !CONFIG_ATMEL_LCD */
 564 #ifdef  CONFIG_SYS_INVERT_COLORS
 565                         *cmap++ = 0xffff - colreg;
 566 #else
 567                         *cmap++ = colreg;
 568 #endif
 569 #endif /* CONFIG_ATMEL_LCD */
 570                 }
 571
 572                 WATCHDOG_RESET();
 573
 574                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 575                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 576                         bmap += BMP_LOGO_WIDTH;
 577                         fb   += panel_info.vl_col;
 578                 }
 579         }
 580         else { /* true color mode */
 581                 u16 col16;
 582                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 583                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 584                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 585                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 586                                 fb16[j] =
 587                                         ((col16 & 0x000F) << 1) |
 588                                         ((col16 & 0x00F0) << 3) |
 589                                         ((col16 & 0x0F00) << 4);
 590                                 }
 591                         bmap += BMP_LOGO_WIDTH;
 592                         fb16 += panel_info.vl_col;
 593                 }
 594         }
 595
 596         WATCHDOG_RESET();
 597 }
 598 #endif /* CONFIG_LCD_LOGO */
 599
 600 /*----------------------------------------------------------------------*/
 601 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 602 /*
 603  * Display the BMP file located at address bmp_image.
 604  * Only uncompressed.
 605  */
 606
 607 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 608 #define BMP_ALIGN_CENTER        0x7FFF
 609 #endif
 610 void lcd_display_clear(void)
 611 {
 612         unsigned int *fb = lcd_base;
 613         debug("Clean the display\n");
 614
 615         memset(fb, 0, panel_info.vl_row * panel_info.vl_col * panel_info.vl_bpix / 8);
 616 }
 617
 618 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 619 {
 620 #if !defined(CONFIG_MCC200)
 621         ushort *cmap = NULL;
 622 #endif
 623         ushort *cmap_base = NULL;
 624         ushort i, j;
 625         uchar *fb;
 626         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 627         uchar *bmap;
 628         ushort padded_line;
 629         unsigned long width, height, byte_width;
 630         unsigned long pwidth = panel_info.vl_col;
 631         unsigned colors, bpix, bmp_bpix;
 632         unsigned long compression;
 633 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 634         struct pxafb_info *fbi = &panel_info.pxa;
 635 #elif defined(CONFIG_MPC823)
 636         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 637         volatile cpm8xx_t *cp = &(immr->im_cpm);
 638 #endif
 639
 640         if (!((bmp->header.signature[0]=='B') &&
 641                 (bmp->header.signature[1]=='M'))) {
 642                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 643                 return 1;
 644         }
 645
 646         width = le32_to_cpu (bmp->header.width);
 647         height = le32_to_cpu (bmp->header.height);
 648         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 649         colors = 1 << bmp_bpix;
 650         compression = le32_to_cpu (bmp->header.compression);
 651
 652         bpix = (panel_info.vl_bpix);
 653
 654         if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
 655                 printf ("Error0: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 656                         bpix, bmp_bpix);
 657                 return 1;
 658         }
 659
 660         /* We support displaying
 661          *  8bpp BMPs on 16bpp LCDs
 662          *  4bpp BMPs on 32bpp LCDs
 663          * 16bpp BMPs on 32bpp LCDs */
 664         if (bpix != bmp_bpix &&
 665                 (bmp_bpix != 8 || bpix != 16) &&
 666                 !(bmp_bpix == 4 && bpix == 32) &&
 667                 !(bmp_bpix == 16 && bpix == 32)) {
 668                 printf ("Error1: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 669                         bpix,
 670                         le16_to_cpu(bmp->header.bit_count));
 671                 return 1;
 672         }
 673
 674         debug ("Display-bmp: %d x %d  with %d colors\n",
 675                 (int)width, (int)height, (int)colors);
 676
 677 #if !defined(CONFIG_MCC200)
 678         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 679         if (bmp_bpix == 8) {
 680 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 681                 cmap = (ushort *)fbi->palette;
 682 #elif defined(CONFIG_MPC823)
 683                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 684 #elif !defined(CONFIG_ATMEL_LCD)
 685                 /* cmap = panel_info.cmap; */
 686                 cmap = (ushort *) malloc(1024);
 687 #endif
 688
 689                 cmap_base = cmap;
 690
 691                 /* Set color map */
 692                 for (i=0; i<colors; ++i) {
 693                         bmp_color_table_entry_t cte = bmp->color_table[i];
 694 #if !defined(CONFIG_ATMEL_LCD)
 695                         ushort colreg =
 696                                 ( ((cte.red)   << 8) & 0xf800) |
 697                                 ( ((cte.green) << 3) & 0x07e0) |
 698                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 699 #ifdef CONFIG_SYS_INVERT_COLORS
 700                         *cmap = 0xffff - colreg;
 701 #else
 702                         *cmap = colreg;
 703 #endif
 704 #if defined(CONFIG_MPC823)
 705                         cmap--;
 706 #else
 707                         cmap++;
 708 #endif
 709 #else /* CONFIG_ATMEL_LCD */
 710                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 711 #endif
 712                 }
 713         }
 714 #endif
 715
 716         /*
 717          *  BMP format for Monochrome assumes that the state of a
 718          * pixel is described on a per Bit basis, not per Byte.
 719          *  So, in case of Monochrome BMP we should align widths
 720          * on a byte boundary and convert them from Bit to Byte
 721          * units.
 722          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 723          * their own ways, so make the converting to be MCC200
 724          * specific.
 725          */
 726 #if defined(CONFIG_MCC200)
 727         if (bpix==1)
 728         {
 729                 width = ((width + 7) & ~7) >> 3;
 730                 x     = ((x + 7) & ~7) >> 3;
 731                 pwidth= ((pwidth + 7) & ~7) >> 3;
 732         }
 733 #endif
 734
 735         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 736
 737 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 738         if (x == BMP_ALIGN_CENTER)
 739                 x = max(0, (pwidth - width) / 2);
 740         else if (x < 0)
 741                 x = max(0, pwidth - width + x + 1);
 742
 743         if (y == BMP_ALIGN_CENTER)
 744                 y = max(0, (panel_info.vl_row - height) / 2);
 745         else if (y < 0)
 746                 y = max(0, panel_info.vl_row - height + y + 1);
 747 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 748
 749         if ((x + width)>pwidth)
 750                 width = pwidth - x;
 751         if ((y + height)>panel_info.vl_row)
 752                 height = panel_info.vl_row - y;
 753
 754         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 755         if (bpix == 8) {
 756                 fb = (uchar *) (lcd_base +
 757                         (y + height - 1) * lcd_line_length + x * (bpix / 8));
 758         } else {
 759                 lcd_line_length = (panel_info.vl_col * (bpix / 8));
 760                 fb = (uchar *) (lcd_base +
 761                         (y + height) * lcd_line_length + x * (bpix / 8));
 762         }
 763
 764         switch (bmp_bpix) {
 765         case 4: /* Display 4b bmp at 32b lcd */
 766                 if (bpix == 32) {
 767                         /* 1. Get the color map */
 768                         unsigned int cmap_32[16];
 769                         unsigned int effective_width;
 770
 771                         for (i=0; i<colors; ++i) {
 772                                 bmp_color_table_entry_t cte = bmp->color_table[i];
 773                                 cmap_32[i] = (cte.red << 0) | (cte.green << 8) |
 774                                         (cte.blue << 16) | (cte.reserved << 24);
 775                         }
 776
 777                         /* 2. Put'em on the screen */
 778
 779                         printf("Drawing the 32bit bmp.. @ 4b (%d,%d) of [%ldx%ld] in %d (%d color)\n",
 780                                         x, y, width, height, lcd_line_length, colors);
 781                         effective_width = (width % 2) ? (width + 1) : width;
 782                         for (i = 0; i < height; ++i) {
 783                                 WATCHDOG_RESET();
 784                                 for (j = 0; j < width; j++) {
 785                                         int color_v;
 786                                         color_v = bmap[(j + i * effective_width) / 2];
 787                                         if ((j + i * effective_width) % 2)
 788                                                 color_v = color_v & 0xf;
 789                                         else
 790                                                 color_v = (color_v >> 4) & 0xf;
 791
 792                                         memcpy(fb, cmap_32 + color_v, 4);
 793                                         fb += 4;
 794                                 }
 795                                 fb   -= (lcd_line_length + width * 4);
 796                         }
 797                 }
 798                 break;
 799         case 1: /* pass through */
 800         case 8:
 801                 if (bpix != 16)
 802                         byte_width = width;
 803                 else
 804                         byte_width = width * 2;
 805
 806                 for (i = 0; i < height; ++i) {
 807                         WATCHDOG_RESET();
 808                         for (j = 0; j < width; j++) {
 809                                 if (bpix != 16) {
 810 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS || defined(CONFIG_ATMEL_LCD)
 811                                         *(fb++) = *(bmap++);
 812 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 813                                         *(fb++) = 255 - *(bmap++);
 814 #endif
 815                                 } else {
 816                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 817                                         fb += sizeof(uint16_t) / sizeof(*fb);
 818                                 }
 819                         }
 820                         bmap += (width - padded_line);
 821                         fb   -= (byte_width + lcd_line_length);
 822                 }
 823                 break;
 824
 825 #if defined(CONFIG_BMP_16BPP)
 826         case 16:
 827                 for (i = 0; i < height; ++i) {
 828                         WATCHDOG_RESET();
 829                         for (j = 0; j < width; j++) {
 830 #if defined(CONFIG_ATMEL_LCD_BGR555)
 831                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 832                                         (bmap[1] & 0x03);
 833                                 *(fb++) = (bmap[0] & 0xe0) |
 834                                         ((bmap[1] & 0x7c) >> 2);
 835                                 bmap += 2;
 836 #else
 837                                 if (bpix == 32) {
 838                                         ushort rgb565 = *(ushort *)bmap;
 839                                         uchar r, g, b;
 840
 841                                         r = ((rgb565 & 0xF800) >> 11) << 3;
 842                                         g = ((rgb565 & 0x7E0) >> 5) << 2;
 843                                         b = ((rgb565 & 0x1F)) << 3;
 844
 845                                         *(fb++) = b;
 846                                         *(fb++) = g;
 847                                         *(fb++) = r;
 848                                         *(fb++) = 0xff;
 849                                         bmap += 2;
 850                                 } else {
 851                                         *(fb++) = *(bmap++);
 852                                         *(fb++) = *(bmap++);
 853                                 }
 854 #endif
 855                         }
 856                         if (bpix != 32) {
 857                                 bmap += (padded_line - width) * 2;
 858                         }
 859                         fb   -= (width * (bpix / 8) + lcd_line_length);
 860                 }
 861                 break;
 862 #endif /* CONFIG_BMP_16BPP */
 863
 864 #if defined(CONFIG_BMP_32BPP)
 865         case 32:
 866                 for (i = 0; i < height; ++i) {
 867                         WATCHDOG_RESET();
 868                         for (j = 0; j < width; j++) {
 869                                 *(fb++) = *(bmap++);
 870                                 *(fb++) = *(bmap++);
 871                                 *(fb++) = *(bmap++);
 872                                 *(fb++) = *(bmap++);
 873                         }
 874                         fb   -= (lcd_line_length + width * (bpix / 8));
 875                 }
 876                 break;
 877 #endif /* CONFIG_BMP_32BPP */
 878
 879         default:
 880                 break;
 881         };
 882
 883         return (0);
 884 }
 885 #endif
 886
 887 static void *lcd_logo (void)
 888 {
 889 #ifdef CONFIG_SPLASH_SCREEN
 890         char *s;
 891         ulong addr;
 892         int allocated = 0;
 893         static int do_splash = 1;
 894
 895         if (do_splash && (s = getenv("splashimage")) != NULL) {
 896                 int x = 0, y = 0;
 897                 do_splash = 0;
 898
 899                 addr = simple_strtoul (s, NULL, 16);
 900 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 901                 if ((s = getenv ("splashpos")) != NULL) {
 902                         if (s[0] == 'm')
 903                                 x = BMP_ALIGN_CENTER;
 904                         else
 905                                 x = simple_strtol (s, NULL, 0);
 906
 907                         if ((s = strchr (s + 1, ',')) != NULL) {
 908                                 if (s[1] == 'm')
 909                                         y = BMP_ALIGN_CENTER;
 910                                 else
 911                                         y = simple_strtol (s + 1, NULL, 0);
 912                         }
 913                 }
 914 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 915
 916 #ifdef CONFIG_VIDEO_BMP_GZIP
 917                 bmp_image_t *bmp = (bmp_image_t *)addr;
 918                 unsigned long len;
 919
 920                 if (!((bmp->header.signature[0]=='B') &&
 921                       (bmp->header.signature[1]=='M'))) {
 922                         addr = (ulong)gunzip_bmp(addr, &len);
 923                         if (addr)
 924                                 allocated = 1;
 925                 }
 926 #endif
 927
 928                 if (lcd_display_bitmap (addr, x, y) == 0) {
 929 #ifdef CONFIG_VIDEO_BMP_GZIP
 930                         if (addr && allocated)
 931                                 free((void *)addr);
 932 #endif
 933                         return ((void *)lcd_base);
 934                 }
 935 #ifdef CONFIG_VIDEO_BMP_GZIP
 936                 if (addr && allocated)
 937                         free((void *)addr);
 938 #endif
 939         }
 940 #endif /* CONFIG_SPLASH_SCREEN */
 941
 942 #ifdef CONFIG_LCD_LOGO
 943         bitmap_plot (0, 0);
 944 #endif /* CONFIG_LCD_LOGO */
 945
 946 #ifdef CONFIG_LCD_INFO
 947         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 948         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 949         lcd_show_board_info();
 950 #endif /* CONFIG_LCD_INFO */
 951
 952 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 953         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 954 #else
 955         return ((void *)lcd_base);
 956 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 957 }
 958
 959 /************************************************************************/
 960 /************************************************************************/