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         flush_dcache_range((unsigned long)CONSOLE_ROW_FIRST,
 112                         (unsigned long)CONSOLE_ROW_LAST + CONSOLE_ROW_SIZE);
 113 }
 114
 115 /*----------------------------------------------------------------------*/
 116
 117 static inline void console_back (void)
 118 {
 119         if (--console_col < 0) {
 120                 console_col = CONSOLE_COLS-1 ;
 121                 if (--console_row < 0) {
 122                         console_row = 0;
 123                 }
 124         }
 125
 126         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 127                      console_row * VIDEO_FONT_HEIGHT,
 128                      ' ');
 129 }
 130
 131 /*----------------------------------------------------------------------*/
 132
 133 static inline void console_newline (void)
 134 {
 135         ++console_row;
 136         console_col = 0;
 137
 138         /* Check if we need to scroll the terminal */
 139         if (console_row >= CONSOLE_ROWS) {
 140                 /* Scroll everything up */
 141                 console_scrollup () ;
 142                 --console_row;
 143         }
 144 }
 145
 146 /*----------------------------------------------------------------------*/
 147
 148 void lcd_putc (const char c)
 149 {
 150         if (!lcd_is_enabled) {
 151                 serial_putc(c);
 152                 return;
 153         }
 154
 155         switch (c) {
 156         case '\r':      console_col = 0;
 157                         return;
 158
 159         case '\n':      console_newline();
 160                         return;
 161
 162         case '\t':      /* Tab (8 chars alignment) */
 163                         console_col +=  8;
 164                         console_col &= ~7;
 165
 166                         if (console_col >= CONSOLE_COLS) {
 167                                 console_newline();
 168                         }
 169                         return;
 170
 171         case '\b':      console_back();
 172                         return;
 173
 174         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 175                                      console_row * VIDEO_FONT_HEIGHT,
 176                                      c);
 177                         if (++console_col >= CONSOLE_COLS) {
 178                                 console_newline();
 179                         }
 180                         return;
 181         }
 182         /* NOTREACHED */
 183 }
 184
 185 /*----------------------------------------------------------------------*/
 186
 187 void lcd_puts (const char *s)
 188 {
 189         if (!lcd_is_enabled) {
 190                 serial_puts (s);
 191                 return;
 192         }
 193
 194         while (*s) {
 195                 lcd_putc (*s++);
 196         }
 197 }
 198
 199 /*----------------------------------------------------------------------*/
 200
 201 void lcd_printf(const char *fmt, ...)
 202 {
 203         va_list args;
 204         char buf[CONFIG_SYS_PBSIZE];
 205
 206         va_start(args, fmt);
 207         vsprintf(buf, fmt, args);
 208         va_end(args);
 209
 210         lcd_puts(buf);
 211 }
 212
 213 /************************************************************************/
 214 /* ** Low-Level Graphics Routines                                       */
 215 /************************************************************************/
 216
 217 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 218 {
 219         void *dest;
 220         ushort row;
 221
 222 #if LCD_BPP == LCD_MONOCHROME
 223         ushort off  = x * (1 << LCD_BPP) % 8;
 224 #endif
 225
 226         dest = lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8;
 227
 228         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 229                 uchar *s = str;
 230                 int i;
 231 #if LCD_BPP == LCD_COLOR24
 232                 ulong *d = dest;
 233 #elif LCD_BPP == LCD_COLOR16
 234                 ushort *d = dest;
 235 #else
 236                 uchar *d = dest;
 237 #endif
 238
 239 #if LCD_BPP == LCD_MONOCHROME
 240                 uchar rest = *d & -(1 << (8-off));
 241                 uchar sym;
 242 #endif
 243                 for (i=0; i<count; ++i) {
 244                         uchar c, bits;
 245
 246                         c = *s++;
 247                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 248
 249 #if LCD_BPP == LCD_MONOCHROME
 250                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 251                                (COLOR_MASK(lcd_color_bg) & ~bits);
 252
 253                         *d++ = rest | (sym >> off);
 254                         rest = sym << (8-off);
 255 #else
 256                         for (c=0; c<8; ++c) {
 257                                 *d++ = (bits & 0x80) ?
 258                                                 lcd_color_fg : lcd_color_bg;
 259                                 bits <<= 1;
 260                         }
 261 #endif
 262                 }
 263 #if LCD_BPP == LCD_MONOCHROME
 264                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 265 #endif
 266         }
 267 }
 268
 269 /*----------------------------------------------------------------------*/
 270
 271 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 272 {
 273 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 274         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 275 #else
 276         lcd_drawchars (x, y, s, strlen ((char *)s));
 277 #endif
 278 }
 279
 280 /*----------------------------------------------------------------------*/
 281
 282 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 283 {
 284 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 285         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 286 #else
 287         lcd_drawchars (x, y, &c, 1);
 288 #endif
 289 }
 290
 291 /************************************************************************/
 292 /**  Small utility to check that you got the colours right              */
 293 /************************************************************************/
 294 #ifdef LCD_TEST_PATTERN
 295
 296 #define N_BLK_VERT      2
 297 #define N_BLK_HOR       3
 298
 299 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 300         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 301         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 302 };
 303
 304 #if LCD_BPP == LCD_COLOR8
 305 typedef uchar pix_t;
 306 #elif LCD_BPP == LCD_COLOR16
 307 typedef ushort pix_t;
 308 #elif LCD_BPP == LCD_COLOR24
 309 typedef ulong pix_t;
 310 #else
 311 #error Unsupported pixelformat
 312 #endif
 313
 314 static void test_pattern (void)
 315 {
 316         ushort v_max  = panel_info.vl_row;
 317         ushort h_max  = panel_info.vl_col;
 318         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 319         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 320         ushort v, h;
 321         pix_t *pix = lcd_base;
 322
 323         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 324                 h_max, v_max, h_step, v_step);
 325
 326         for (v = 0; v < v_max; v++) {
 327                 uchar iy = v / v_step;
 328                 for (h = 0; h < h_max; h++) {
 329                         uchar ix = N_BLK_HOR * iy + (h / h_step);
 330                         *pix++ = test_colors[ix];
 331                 }
 332         }
 333 }
 334 #endif /* LCD_TEST_PATTERN */
 335
 336
 337 /************************************************************************/
 338 /* ** GENERIC Initialization Routines                                   */
 339 /************************************************************************/
 340
 341 int drv_lcd_init(void)
 342 {
 343         struct stdio_dev lcddev;
 344         int rc;
 345
 346         lcd_base = (void *)gd->fb_base;
 347
 348         lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 349
 350         lcd_init (lcd_base);            /* LCD initialization */
 351
 352         /* Device initialization */
 353         memset (&lcddev, 0, sizeof (lcddev));
 354
 355         strcpy (lcddev.name, "lcd");
 356         lcddev.ext   = 0;                       /* No extensions */
 357         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 358         lcddev.putc  = lcd_putc;                /* 'putc' function */
 359         lcddev.puts  = lcd_puts;                /* 'puts' function */
 360
 361         rc = stdio_register (&lcddev);
 362
 363         return (rc == 0) ? 1 : rc;
 364 }
 365
 366 /*----------------------------------------------------------------------*/
 367 static
 368 int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
 369 {
 370         lcd_clear();
 371         return 0;
 372 }
 373
 374 void lcd_clear(void)
 375 {
 376 #if LCD_BPP == LCD_MONOCHROME
 377         /* Setting the palette */
 378         lcd_initcolregs();
 379
 380 #elif LCD_BPP == LCD_COLOR8
 381         /* Setting the palette */
 382         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 383         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 384         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 385         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 386         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 387         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 388         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 389         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 390         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 391 #endif
 392
 393 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 394         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 395         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 396 #else
 397         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 398         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 399 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 400
 401 #ifdef  LCD_TEST_PATTERN
 402         test_pattern();
 403 #else
 404         /* set framebuffer to background color */
 405         memset (lcd_base,
 406                 COLOR_MASK(lcd_getbgcolor()),
 407                 lcd_line_length*panel_info.vl_row);
 408 #endif
 409         /* Paint the logo and retrieve LCD base address */
 410         debug ("[LCD] Drawing the logo @ %p...\n", lcd_base);
 411         lcd_console_address = lcd_logo ();
 412         flush_dcache_range((unsigned long)lcd_base,
 413                         (unsigned long)lcd_base + lcd_line_length*panel_info.vl_row);
 414
 415         console_col = 0;
 416         console_row = 0;
 417 }
 418
 419 U_BOOT_CMD(
 420         cls,    1,      1,      do_lcd_clear,
 421         "clear screen",
 422         ""
 423 );
 424
 425 /*----------------------------------------------------------------------*/
 426
 427 static int lcd_init (void *lcdbase)
 428 {
 429         /* Initialize the lcd controller */
 430         debug ("[LCD] Initializing %ux%ux%u LCD framebuffer at %p\n",
 431                 panel_info.vl_col, panel_info.vl_row, NBITS(panel_info.vl_bpix),
 432                 lcdbase);
 433
 434         lcd_ctrl_init (lcdbase);
 435         lcd_is_enabled = 1;
 436         lcd_clear();
 437         lcd_enable ();
 438
 439         /* Initialize the console */
 440         console_col = 0;
 441 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 442         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 443 #else
 444         console_row = 1;        /* leave 1 blank line below logo */
 445 #endif
 446
 447         return 0;
 448 }
 449
 450
 451 /************************************************************************/
 452 /* ** ROM capable initialization part - needed to reserve FB memory     */
 453 /************************************************************************/
 454 /*
 455  * This is called early in the system initialization to grab memory
 456  * for the LCD controller.
 457  * Returns new address for monitor, after reserving LCD buffer memory
 458  *
 459  * Note that this is running from ROM, so no write access to global data.
 460  */
 461 ulong lcd_setmem (ulong addr)
 462 {
 463         ulong size;
 464         int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 465
 466         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 467                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 468
 469         size = line_length * panel_info.vl_row;
 470
 471         /* Round up to nearest full page */
 472         size = ALIGN(size, PAGE_SIZE);
 473
 474         /* Allocate pages for the frame buffer. */
 475         addr -= size;
 476
 477         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 478
 479         return addr;
 480 }
 481
 482 /*----------------------------------------------------------------------*/
 483
 484 static void lcd_setfgcolor (int color)
 485 {
 486         lcd_color_fg = color;
 487 }
 488
 489 /*----------------------------------------------------------------------*/
 490
 491 static void lcd_setbgcolor (int color)
 492 {
 493         lcd_color_bg = color;
 494 }
 495
 496 /*----------------------------------------------------------------------*/
 497
 498 #ifdef  NOT_USED_SO_FAR
 499 static int lcd_getfgcolor (void)
 500 {
 501         return lcd_color_fg;
 502 }
 503 #endif  /* NOT_USED_SO_FAR */
 504
 505 /*----------------------------------------------------------------------*/
 506
 507 static inline int lcd_getbgcolor (void)
 508 {
 509         return lcd_color_bg;
 510 }
 511
 512 /*----------------------------------------------------------------------*/
 513
 514 /************************************************************************/
 515 /* ** Chipset depending Bitmap / Logo stuff...                          */
 516 /************************************************************************/
 517 #ifdef CONFIG_LCD_LOGO
 518 void bitmap_plot (int x, int y)
 519 {
 520 #ifdef CONFIG_ATMEL_LCD
 521         uint *cmap;
 522 #else
 523         ushort *cmap;
 524 #endif
 525         ushort i, j;
 526         uchar *bmap;
 527         uchar *fb;
 528 #if defined(CONFIG_CPU_PXA)
 529         struct pxafb_info *fbi = &panel_info.pxa;
 530 #elif defined(CONFIG_MPC823)
 531         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 532         volatile cpm8xx_t *cp = &immr->im_cpm;
 533 #endif
 534
 535         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 536                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 537                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 538
 539         bmap = &bmp_logo_bitmap[0];
 540         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 541
 542         if (NBITS(panel_info.vl_bpix) < 12) {
 543                 /* Leave room for default color map */
 544 #if defined(CONFIG_CPU_PXA)
 545                 cmap = (ushort *)fbi->palette;
 546 #elif defined(CONFIG_MPC823)
 547                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 548 #elif defined(CONFIG_ATMEL_LCD)
 549                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 550 #else
 551                 /*
 552                  * default case: generic system with no cmap (most likely 16bpp)
 553                  * We set cmap to the source palette, so no change is done.
 554                  * This avoids even more ifdef in the next stanza
 555                  */
 556                 cmap = bmp_logo_palette;
 557 #endif
 558
 559                 WATCHDOG_RESET();
 560
 561                 /* Set color map */
 562                 for (i = 0; i < sizeof(bmp_logo_palette) / sizeof(ushort); i++) {
 563                         ushort colreg = bmp_logo_palette[i];
 564 #ifdef CONFIG_ATMEL_LCD
 565                         uint lut_entry;
 566 #ifdef CONFIG_ATMEL_LCD_BGR555
 567                         lut_entry = ((colreg & 0x000F) << 11) |
 568                                     ((colreg & 0x00F0) <<  2) |
 569                                     ((colreg & 0x0F00) >>  7);
 570 #else /* CONFIG_ATMEL_LCD_RGB565 */
 571                         lut_entry = ((colreg & 0x000F) << 1) |
 572                                     ((colreg & 0x00F0) << 3) |
 573                                     ((colreg & 0x0F00) << 4);
 574 #endif
 575                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 576                         cmap++;
 577 #else /* !CONFIG_ATMEL_LCD */
 578 #ifdef  CONFIG_SYS_INVERT_COLORS
 579                         *cmap++ = 0xffff - colreg;
 580 #else
 581                         *cmap++ = colreg;
 582 #endif
 583 #endif /* CONFIG_ATMEL_LCD */
 584                 }
 585
 586                 WATCHDOG_RESET();
 587
 588                 for (i = 0; i < BMP_LOGO_HEIGHT; i++) {
 589                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 590                         bmap += BMP_LOGO_WIDTH;
 591                         fb   += panel_info.vl_col;
 592                 }
 593         } else if (NBITS(panel_info.vl_bpix) == 16) {
 594                 u16 col16;
 595                 u16 *fb16 = lcd_base + y * lcd_line_length + x;
 596
 597                 for (i = 0; i < BMP_LOGO_HEIGHT; i++) {
 598                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 599                                 col16 = bmp_logo_palette[bmap[j] - 16];
 600                                 fb16[j] =
 601                                         ((col16 & 0x000F) << 1) |
 602                                         ((col16 & 0x00F0) << 3) |
 603                                         ((col16 & 0x0F00) << 4);
 604                                 }
 605                         bmap += BMP_LOGO_WIDTH;
 606                         fb16 += panel_info.vl_col;
 607                 }
 608         } else { /* true color mode */
 609                 u16 col16;
 610                 u32 *fb32 = lcd_base + y * lcd_line_length + x;
 611
 612                 for (i = 0; i < BMP_LOGO_HEIGHT; i++) {
 613                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 614                                 col16 = bmp_logo_palette[bmap[j] - 16];
 615                                 fb32[j] =
 616                                         ((col16 & 0x000F) << 4) |
 617                                         ((col16 & 0x00F0) << 8) |
 618                                         ((col16 & 0x0F00) << 12);
 619                                 }
 620                         bmap += BMP_LOGO_WIDTH;
 621                         fb32 += panel_info.vl_col;
 622                 }
 623         }
 624                 flush_dcache_range((unsigned long)fb,
 625                                 (unsigned long)fb + BMP_LOGO_HEIGHT * BMP_LOGO_WIDTH);
 626
 627         WATCHDOG_RESET();
 628 }
 629 #endif /* CONFIG_LCD_LOGO */
 630
 631 /*----------------------------------------------------------------------*/
 632 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 633 /*
 634  * Display the BMP file located at address bmp_image.
 635  * Only uncompressed.
 636  */
 637
 638 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 639 #define BMP_ALIGN_CENTER        0x7FFF
 640 #endif
 641
 642 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 643 {
 644 #if !defined(CONFIG_MCC200)
 645         ushort *cmap = NULL;
 646 #endif
 647         ushort *cmap_base = NULL;
 648         ushort i, j;
 649         uchar *fb;
 650         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 651         uchar *bmap;
 652         ushort padded_line;
 653         int width, height, byte_width;
 654         int pwidth = panel_info.vl_col;
 655         unsigned long long colors;
 656         unsigned bpix, bmp_bpix;
 657 #if defined(CONFIG_CPU_PXA)
 658         struct pxafb_info *fbi = &panel_info.pxa;
 659 #elif defined(CONFIG_MPC823)
 660         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 661         volatile cpm8xx_t *cp = &(immr->im_cpm);
 662 #endif
 663
 664         if (!((bmp->header.signature[0]=='B') &&
 665                 (bmp->header.signature[1]=='M'))) {
 666                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 667                 return 1;
 668         }
 669
 670         width = le32_to_cpu (bmp->header.width);
 671         height = le32_to_cpu (bmp->header.height);
 672         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 673         colors = 1ULL << bmp_bpix;
 674
 675         bpix = NBITS(panel_info.vl_bpix);
 676
 677         if ((bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) ||
 678                 (bmp_bpix > bpix)) {
 679                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 680                         bpix, bmp_bpix);
 681                 return 1;
 682         }
 683
 684         /* We support displaying 8bpp BMPs on 16bpp or 32bpp LCDs */
 685         if (bpix != bmp_bpix && (bmp_bpix != 8 || (bpix != 16 && bpix != 32))) {
 686                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 687                         bpix,
 688                         le16_to_cpu(bmp->header.bit_count));
 689                 return 1;
 690         }
 691
 692         debug ("Display-bmp: %u x %u  with %llu colors\n",
 693                 width, height, colors);
 694
 695 #if !defined(CONFIG_MCC200)
 696         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 697         if (bmp_bpix == 8) {
 698 #if defined(CONFIG_CPU_PXA)
 699                 cmap = (ushort *)fbi->palette;
 700 #elif defined(CONFIG_MPC823)
 701                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 702 #elif !defined(CONFIG_ATMEL_LCD)
 703                 cmap = panel_info.cmap;
 704 #endif
 705
 706                 cmap_base = cmap;
 707
 708                 /* Set color map */
 709                 for (i = 0; i < colors; i++) {
 710                         bmp_color_table_entry_t cte = bmp->color_table[i];
 711 #if !defined(CONFIG_ATMEL_LCD)
 712                         ushort colreg =
 713                                 ( ((cte.red)   << 8) & 0xf800) |
 714                                 ( ((cte.green) << 3) & 0x07e0) |
 715                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 716 #ifdef CONFIG_SYS_INVERT_COLORS
 717                         *cmap = 0xffff - colreg;
 718 #else
 719                         *cmap = colreg;
 720 #endif
 721 #if defined(CONFIG_MPC823)
 722                         cmap--;
 723 #else
 724                         cmap++;
 725 #endif
 726 #else /* CONFIG_ATMEL_LCD */
 727                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 728 #endif
 729                 }
 730         }
 731 #endif
 732
 733         /*
 734          *  BMP format for Monochrome assumes that the state of a
 735          * pixel is described on a per Bit basis, not per Byte.
 736          *  So, in case of Monochrome BMP we should align widths
 737          * on a byte boundary and convert them from Bit to Byte
 738          * units.
 739          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 740          * their own ways, so make the converting to be MCC200
 741          * specific.
 742          */
 743 #if defined(CONFIG_MCC200)
 744         if (bpix==1)
 745         {
 746                 width = ALIGN(width, 8) >> 3;
 747                 x     = ALIGN(x, 8) >> 3;
 748                 pwidth= ALIGN(pwidth, 8) >> 3;
 749         }
 750 #endif
 751
 752         padded_line = ALIGN(width, 4);
 753
 754 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 755         if (x == BMP_ALIGN_CENTER)
 756                 x = max(0, (pwidth - width) / 2);
 757         else if (x < 0)
 758                 x = max(0, pwidth - width + x + 1);
 759
 760         if (y == BMP_ALIGN_CENTER)
 761                 y = max(0, (panel_info.vl_row - height) / 2);
 762         else if (y < 0)
 763                 y = max(0, panel_info.vl_row - height + y + 1);
 764 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 765         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 766
 767         if ((x + width) > pwidth)
 768                 width = max(pwidth - x, pwidth);
 769         if ((y + height) > panel_info.vl_row) {
 770                 height = panel_info.vl_row - y;
 771                 bmap += (panel_info.vl_row - y) * padded_line;
 772         }
 773
 774         fb   = (uchar *) (lcd_base +
 775                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 776         switch (bmp_bpix) {
 777         case 1: /* pass through */
 778         case 8:
 779                 if (bpix > 16)
 780                         byte_width = width * 4;
 781                 else if (bpix == 16)
 782                         byte_width = width * 2;
 783                 else
 784                         byte_width = width;
 785                 for (i = 0; i < height; i++) {
 786                         WATCHDOG_RESET();
 787                         for (j = 0; j < width; j++) {
 788                                 if (bpix == 32) {
 789                                         int i = *bmap++;
 790
 791                                         fb[3] = 0; /* T */
 792                                         fb[0] = bmp->color_table[i].blue;
 793                                         fb[1] = bmp->color_table[i].green;
 794                                         fb[2] = bmp->color_table[i].red;
 795                                         fb += sizeof(uint32_t) / sizeof(*fb);
 796                                 } else if (bpix == 16) {
 797                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 798                                         fb += sizeof(uint16_t) / sizeof(*fb);
 799                                 } else {
 800 #if defined(CONFIG_CPU_PXA) || defined(CONFIG_ATMEL_LCD)
 801                                         *(fb++) = *(bmap++);
 802 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 803                                         *(fb++) = 255 - *(bmap++);
 804 #endif
 805                                 }
 806                         }
 807                         bmap += padded_line - width;
 808                         fb   -= byte_width + lcd_line_length;
 809                 }
 810                 break;
 811
 812 #if defined(CONFIG_BMP_16BPP)
 813         case 16:
 814                 for (i = 0; i < height; i++) {
 815                         WATCHDOG_RESET();
 816                         for (j = 0; j < width; j++) {
 817 #if defined(CONFIG_ATMEL_LCD_BGR555)
 818                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 819                                         (bmap[1] & 0x03);
 820                                 *(fb++) = (bmap[0] & 0xe0) |
 821                                         ((bmap[1] & 0x7c) >> 2);
 822                                 bmap += 2;
 823 #else
 824                                 *(fb++) = *(bmap++);
 825                                 *(fb++) = *(bmap++);
 826 #endif
 827                         }
 828                         bmap += (padded_line - width) * 2;
 829                         fb   -= width * 2 + lcd_line_length;
 830                 }
 831                 break;
 832 #endif /* CONFIG_BMP_16BPP */
 833         case 32:
 834                 for (i = 0; i < height; i++) {
 835                         WATCHDOG_RESET();
 836                         for (j = 0; j < width; j++) {
 837                                 fb[3] = *bmap++; /* T */
 838                                 fb[0] = *bmap++; /* B */
 839                                 fb[1] = *bmap++; /* G */
 840                                 fb[2] = *bmap++; /* R */
 841                                 fb += 4;
 842                         }
 843                         bmap += (padded_line - width) * 4;
 844                         fb   -= width * 4 + lcd_line_length;
 845                 }
 846                 break;
 847         };
 848
 849         return 0;
 850 }
 851 #endif
 852
 853 static void *lcd_logo (void)
 854 {
 855 #ifdef CONFIG_SPLASH_SCREEN
 856         char *s;
 857         ulong addr;
 858         static int do_splash = 1;
 859
 860         if (do_splash && (s = getenv("splashimage")) != NULL) {
 861                 int x = 0, y = 0;
 862                 char *end;
 863
 864                 do_splash = 0;
 865
 866                 addr = simple_strtoul (s, &end, 16);
 867                 if (addr == 0 || *end != '\0')
 868                         return lcd_base;
 869 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 870                 if ((s = getenv ("splashpos")) != NULL) {
 871                         if (s[0] == 'm')
 872                                 x = BMP_ALIGN_CENTER;
 873                         else
 874                                 x = simple_strtol (s, NULL, 0);
 875
 876                         if ((s = strchr (s + 1, ',')) != NULL) {
 877                                 if (s[1] == 'm')
 878                                         y = BMP_ALIGN_CENTER;
 879                                 else
 880                                         y = simple_strtol (s + 1, NULL, 0);
 881                         }
 882                 }
 883 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 884
 885 #ifdef CONFIG_VIDEO_BMP_GZIP
 886                 bmp_image_t *bmp = (bmp_image_t *)addr;
 887                 unsigned long len;
 888
 889                 if (!((bmp->header.signature[0]=='B') &&
 890                       (bmp->header.signature[1]=='M'))) {
 891                         addr = (ulong)gunzip_bmp(addr, &len);
 892                 }
 893 #endif
 894
 895                 if (lcd_display_bitmap (addr, x, y) == 0) {
 896                         return lcd_base;
 897                 }
 898         }
 899 #endif /* CONFIG_SPLASH_SCREEN */
 900
 901 #ifdef CONFIG_LCD_LOGO
 902         bitmap_plot (0, 0);
 903 #endif /* CONFIG_LCD_LOGO */
 904
 905 #ifdef CONFIG_LCD_INFO
 906         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 907         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 908         lcd_show_board_info();
 909 #endif /* CONFIG_LCD_INFO */
 910
 911 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 912         return lcd_base + BMP_LOGO_HEIGHT * lcd_line_length;
 913 #else
 914         return lcd_base;
 915 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 916 }
 917
 918 /************************************************************************/
 919 /************************************************************************/