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 <devices.h>
  38 #if defined(CONFIG_POST)
  39 #include <post.h>
  40 #endif
  41 #include <lcd.h>
  42 #include <watchdog.h>
  43
  44 #if defined(CONFIG_PXA250)
  45 #include <asm/byteorder.h>
  46 #endif
  47
  48 #if defined(CONFIG_MPC823)
  49 #include <lcdvideo.h>
  50 #endif
  51
  52 #if defined(CONFIG_ATMEL_LCD)
  53 #include <atmel_lcdc.h>
  54 #endif
  55
  56 /************************************************************************/
  57 /* ** FONT DATA                                                         */
  58 /************************************************************************/
  59 #include <video_font.h>         /* Get font data, width and height      */
  60
  61 /************************************************************************/
  62 /* ** LOGO DATA                                                         */
  63 /************************************************************************/
  64 #ifdef CONFIG_LCD_LOGO
  65 # include <bmp_logo.h>          /* Get logo data, width and height      */
  66 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
  67 #  error Default Color Map overlaps with Logo Color Map
  68 # endif
  69 #endif
  70
  71 DECLARE_GLOBAL_DATA_PTR;
  72
  73 ulong lcd_setmem (ulong addr);
  74
  75 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  76 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  77 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  78
  79 static int lcd_init (void *lcdbase);
  80
  81 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  82 extern void lcd_ctrl_init (void *lcdbase);
  83 extern void lcd_enable (void);
  84 static void *lcd_logo (void);
  85
  86
  87 #if (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16)
  88 extern void lcd_setcolreg (ushort regno,
  89                                 ushort red, ushort green, ushort blue);
  90 #endif
  91 #if LCD_BPP == LCD_MONOCHROME
  92 extern void lcd_initcolregs (void);
  93 #endif
  94
  95 static int lcd_getbgcolor (void);
  96 static void lcd_setfgcolor (int color);
  97 static void lcd_setbgcolor (int color);
  98
  99 char lcd_is_enabled = 0;
 100 extern vidinfo_t panel_info;
 101
 102 #ifdef  NOT_USED_SO_FAR
 103 static void lcd_getcolreg (ushort regno,
 104                                 ushort *red, ushort *green, ushort *blue);
 105 static int lcd_getfgcolor (void);
 106 #endif  /* NOT_USED_SO_FAR */
 107
 108 /************************************************************************/
 109
 110 /*----------------------------------------------------------------------*/
 111
 112 static void console_scrollup (void)
 113 {
 114 #if 1
 115         /* Copy up rows ignoring the first one */
 116         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 117
 118         /* Clear the last one */
 119         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 120 #else
 121         /*
 122          * Poor attempt to optimize speed by moving "long"s.
 123          * But the code is ugly, and not a bit faster :-(
 124          */
 125         ulong *t = (ulong *)CONSOLE_ROW_FIRST;
 126         ulong *s = (ulong *)CONSOLE_ROW_SECOND;
 127         ulong    l = CONSOLE_SCROLL_SIZE / sizeof(ulong);
 128         uchar  c = lcd_color_bg & 0xFF;
 129         ulong val= (c<<24) | (c<<16) | (c<<8) | c;
 130
 131         while (l--)
 132                 *t++ = *s++;
 133
 134         t = (ulong *)CONSOLE_ROW_LAST;
 135         l = CONSOLE_ROW_SIZE / sizeof(ulong);
 136
 137         while (l-- > 0)
 138                 *t++ = val;
 139 #endif
 140 }
 141
 142 /*----------------------------------------------------------------------*/
 143
 144 static inline void console_back (void)
 145 {
 146         if (--console_col < 0) {
 147                 console_col = CONSOLE_COLS-1 ;
 148                 if (--console_row < 0) {
 149                         console_row = 0;
 150                 }
 151         }
 152
 153         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 154                      console_row * VIDEO_FONT_HEIGHT,
 155                      ' ');
 156 }
 157
 158 /*----------------------------------------------------------------------*/
 159
 160 static inline void console_newline (void)
 161 {
 162         ++console_row;
 163         console_col = 0;
 164
 165         /* Check if we need to scroll the terminal */
 166         if (console_row >= CONSOLE_ROWS) {
 167                 /* Scroll everything up */
 168                 console_scrollup () ;
 169                 --console_row;
 170         }
 171 }
 172
 173 /*----------------------------------------------------------------------*/
 174
 175 void lcd_putc (const char c)
 176 {
 177         if (!lcd_is_enabled) {
 178                 serial_putc(c);
 179                 return;
 180         }
 181
 182         switch (c) {
 183         case '\r':      console_col = 0;
 184                         return;
 185
 186         case '\n':      console_newline();
 187                         return;
 188
 189         case '\t':      /* Tab (8 chars alignment) */
 190                         console_col +=  8;
 191                         console_col &= ~7;
 192
 193                         if (console_col >= CONSOLE_COLS) {
 194                                 console_newline();
 195                         }
 196                         return;
 197
 198         case '\b':      console_back();
 199                         return;
 200
 201         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 202                                      console_row * VIDEO_FONT_HEIGHT,
 203                                      c);
 204                         if (++console_col >= CONSOLE_COLS) {
 205                                 console_newline();
 206                         }
 207                         return;
 208         }
 209         /* NOTREACHED */
 210 }
 211
 212 /*----------------------------------------------------------------------*/
 213
 214 void lcd_puts (const char *s)
 215 {
 216         if (!lcd_is_enabled) {
 217                 serial_puts (s);
 218                 return;
 219         }
 220
 221         while (*s) {
 222                 lcd_putc (*s++);
 223         }
 224 }
 225
 226 /*----------------------------------------------------------------------*/
 227
 228 void lcd_printf(const char *fmt, ...)
 229 {
 230         va_list args;
 231         char buf[CONFIG_SYS_PBSIZE];
 232
 233         va_start(args, fmt);
 234         vsprintf(buf, fmt, args);
 235         va_end(args);
 236
 237         lcd_puts(buf);
 238 }
 239
 240 /************************************************************************/
 241 /* ** Low-Level Graphics Routines                                       */
 242 /************************************************************************/
 243
 244 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 245 {
 246         uchar *dest;
 247         ushort off, row;
 248
 249         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 250         off  = x * (1 << LCD_BPP) % 8;
 251
 252         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 253                 uchar *s = str;
 254                 uchar *d = dest;
 255                 int i;
 256
 257 #if LCD_BPP == LCD_MONOCHROME
 258                 uchar rest = *d & -(1 << (8-off));
 259                 uchar sym;
 260 #endif
 261                 for (i=0; i<count; ++i) {
 262                         uchar c, bits;
 263
 264                         c = *s++;
 265                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 266
 267 #if LCD_BPP == LCD_MONOCHROME
 268                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 269                                (COLOR_MASK(lcd_color_bg) & ~bits);
 270
 271                         *d++ = rest | (sym >> off);
 272                         rest = sym << (8-off);
 273 #elif LCD_BPP == LCD_COLOR8
 274                         for (c=0; c<8; ++c) {
 275                                 *d++ = (bits & 0x80) ?
 276                                                 lcd_color_fg : lcd_color_bg;
 277                                 bits <<= 1;
 278                         }
 279 #elif LCD_BPP == LCD_COLOR16
 280                         for (c=0; c<16; ++c) {
 281                                 *d++ = (bits & 0x80) ?
 282                                                 lcd_color_fg : lcd_color_bg;
 283                                 bits <<= 1;
 284                         }
 285 #endif
 286                 }
 287 #if LCD_BPP == LCD_MONOCHROME
 288                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 289 #endif
 290         }
 291 }
 292
 293 /*----------------------------------------------------------------------*/
 294
 295 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 296 {
 297 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 298         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 299 #else
 300         lcd_drawchars (x, y, s, strlen ((char *)s));
 301 #endif
 302 }
 303
 304 /*----------------------------------------------------------------------*/
 305
 306 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 307 {
 308 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 309         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 310 #else
 311         lcd_drawchars (x, y, &c, 1);
 312 #endif
 313 }
 314
 315 /************************************************************************/
 316 /**  Small utility to check that you got the colours right              */
 317 /************************************************************************/
 318 #ifdef LCD_TEST_PATTERN
 319
 320 #define N_BLK_VERT      2
 321 #define N_BLK_HOR       3
 322
 323 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 324         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 325         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 326 };
 327
 328 static void test_pattern (void)
 329 {
 330         ushort v_max  = panel_info.vl_row;
 331         ushort h_max  = panel_info.vl_col;
 332         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 333         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 334         ushort v, h;
 335         uchar *pix = (uchar *)lcd_base;
 336
 337         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 338                 h_max, v_max, h_step, v_step);
 339
 340         /* WARNING: Code silently assumes 8bit/pixel */
 341         for (v=0; v<v_max; ++v) {
 342                 uchar iy = v / v_step;
 343                 for (h=0; h<h_max; ++h) {
 344                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 345                         *pix++ = test_colors[ix];
 346                 }
 347         }
 348 }
 349 #endif /* LCD_TEST_PATTERN */
 350
 351
 352 /************************************************************************/
 353 /* ** GENERIC Initialization Routines                                   */
 354 /************************************************************************/
 355
 356 int drv_lcd_init (void)
 357 {
 358         device_t lcddev;
 359         int rc;
 360
 361         lcd_base = (void *)(gd->fb_base);
 362
 363         lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 364
 365         lcd_init (lcd_base);            /* LCD initialization */
 366
 367         /* Device initialization */
 368         memset (&lcddev, 0, sizeof (lcddev));
 369
 370         strcpy (lcddev.name, "lcd");
 371         lcddev.ext   = 0;                       /* No extensions */
 372         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 373         lcddev.putc  = lcd_putc;                /* 'putc' function */
 374         lcddev.puts  = lcd_puts;                /* 'puts' function */
 375
 376         rc = device_register (&lcddev);
 377
 378         return (rc == 0) ? 1 : rc;
 379 }
 380
 381 /*----------------------------------------------------------------------*/
 382 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 383 {
 384 #if LCD_BPP == LCD_MONOCHROME
 385         /* Setting the palette */
 386         lcd_initcolregs();
 387
 388 #elif LCD_BPP == LCD_COLOR8
 389         /* Setting the palette */
 390         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 391         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 392         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 393         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 394         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 395         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 396         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 397         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 398         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 399 #endif
 400
 401 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 402         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 403         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 404 #else
 405         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 406         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 407 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 408
 409 #ifdef  LCD_TEST_PATTERN
 410         test_pattern();
 411 #else
 412         /* set framebuffer to background color */
 413         memset ((char *)lcd_base,
 414                 COLOR_MASK(lcd_getbgcolor()),
 415                 lcd_line_length*panel_info.vl_row);
 416 #endif
 417         /* Paint the logo and retrieve LCD base address */
 418         debug ("[LCD] Drawing the logo...\n");
 419         lcd_console_address = lcd_logo ();
 420
 421         console_col = 0;
 422         console_row = 0;
 423
 424         return (0);
 425 }
 426
 427 U_BOOT_CMD(
 428         cls,    1,      1,      lcd_clear,
 429         "clear screen",
 430         ""
 431 );
 432
 433 /*----------------------------------------------------------------------*/
 434
 435 static int lcd_init (void *lcdbase)
 436 {
 437         /* Initialize the lcd controller */
 438         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 439
 440         lcd_ctrl_init (lcdbase);
 441         lcd_is_enabled = 1;
 442         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 443         lcd_enable ();
 444
 445         /* Initialize the console */
 446         console_col = 0;
 447 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 448         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 449 #else
 450         console_row = 1;        /* leave 1 blank line below logo */
 451 #endif
 452
 453         return 0;
 454 }
 455
 456
 457 /************************************************************************/
 458 /* ** ROM capable initialization part - needed to reserve FB memory     */
 459 /************************************************************************/
 460 /*
 461  * This is called early in the system initialization to grab memory
 462  * for the LCD controller.
 463  * Returns new address for monitor, after reserving LCD buffer memory
 464  *
 465  * Note that this is running from ROM, so no write access to global data.
 466  */
 467 ulong lcd_setmem (ulong addr)
 468 {
 469         ulong size;
 470         int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 471
 472         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 473                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 474
 475         size = line_length * panel_info.vl_row;
 476
 477         /* Round up to nearest full page */
 478         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 479
 480         /* Allocate pages for the frame buffer. */
 481         addr -= size;
 482
 483         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 484
 485         return (addr);
 486 }
 487
 488 /*----------------------------------------------------------------------*/
 489
 490 static void lcd_setfgcolor (int color)
 491 {
 492 #ifdef CONFIG_ATMEL_LCD
 493         lcd_color_fg = color;
 494 #else
 495         lcd_color_fg = color & 0x0F;
 496 #endif
 497 }
 498
 499 /*----------------------------------------------------------------------*/
 500
 501 static void lcd_setbgcolor (int color)
 502 {
 503 #ifdef CONFIG_ATMEL_LCD
 504         lcd_color_bg = color;
 505 #else
 506         lcd_color_bg = color & 0x0F;
 507 #endif
 508 }
 509
 510 /*----------------------------------------------------------------------*/
 511
 512 #ifdef  NOT_USED_SO_FAR
 513 static int lcd_getfgcolor (void)
 514 {
 515         return lcd_color_fg;
 516 }
 517 #endif  /* NOT_USED_SO_FAR */
 518
 519 /*----------------------------------------------------------------------*/
 520
 521 static int lcd_getbgcolor (void)
 522 {
 523         return lcd_color_bg;
 524 }
 525
 526 /*----------------------------------------------------------------------*/
 527
 528 /************************************************************************/
 529 /* ** Chipset depending Bitmap / Logo stuff...                          */
 530 /************************************************************************/
 531 #ifdef CONFIG_LCD_LOGO
 532 void bitmap_plot (int x, int y)
 533 {
 534 #ifdef CONFIG_ATMEL_LCD
 535         uint *cmap;
 536 #else
 537         ushort *cmap;
 538 #endif
 539         ushort i, j;
 540         uchar *bmap;
 541         uchar *fb;
 542         ushort *fb16;
 543 #if defined(CONFIG_PXA250)
 544         struct pxafb_info *fbi = &panel_info.pxa;
 545 #elif defined(CONFIG_MPC823)
 546         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 547         volatile cpm8xx_t *cp = &(immr->im_cpm);
 548 #endif
 549
 550         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 551                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 552                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 553
 554         bmap = &bmp_logo_bitmap[0];
 555         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 556
 557         if (NBITS(panel_info.vl_bpix) < 12) {
 558                 /* Leave room for default color map */
 559 #if defined(CONFIG_PXA250)
 560                 cmap = (ushort *)fbi->palette;
 561 #elif defined(CONFIG_MPC823)
 562                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 563 #elif defined(CONFIG_ATMEL_LCD)
 564                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 565 #endif
 566
 567                 WATCHDOG_RESET();
 568
 569                 /* Set color map */
 570                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 571                         ushort colreg = bmp_logo_palette[i];
 572 #ifdef CONFIG_ATMEL_LCD
 573                         uint lut_entry;
 574 #ifdef CONFIG_ATMEL_LCD_BGR555
 575                         lut_entry = ((colreg & 0x000F) << 11) |
 576                                     ((colreg & 0x00F0) <<  2) |
 577                                     ((colreg & 0x0F00) >>  7);
 578 #else /* CONFIG_ATMEL_LCD_RGB565 */
 579                         lut_entry = ((colreg & 0x000F) << 1) |
 580                                     ((colreg & 0x00F0) << 3) |
 581                                     ((colreg & 0x0F00) << 4);
 582 #endif
 583                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 584                         cmap++;
 585 #else /* !CONFIG_ATMEL_LCD */
 586 #ifdef  CONFIG_SYS_INVERT_COLORS
 587                         *cmap++ = 0xffff - colreg;
 588 #else
 589                         *cmap++ = colreg;
 590 #endif
 591 #endif /* CONFIG_ATMEL_LCD */
 592                 }
 593
 594                 WATCHDOG_RESET();
 595
 596                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 597                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 598                         bmap += BMP_LOGO_WIDTH;
 599                         fb   += panel_info.vl_col;
 600                 }
 601         }
 602         else { /* true color mode */
 603                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 604                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 605                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 606                                 fb16[j] = bmp_logo_palette[(bmap[j])];
 607                                 }
 608                         bmap += BMP_LOGO_WIDTH;
 609                         fb16 += panel_info.vl_col;
 610                 }
 611         }
 612
 613         WATCHDOG_RESET();
 614 }
 615 #endif /* CONFIG_LCD_LOGO */
 616
 617 /*----------------------------------------------------------------------*/
 618 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 619 /*
 620  * Display the BMP file located at address bmp_image.
 621  * Only uncompressed.
 622  */
 623 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 624 {
 625 #if !defined(CONFIG_MCC200)
 626         ushort *cmap = NULL;
 627 #endif
 628         ushort *cmap_base = NULL;
 629         ushort i, j;
 630         uchar *fb;
 631         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 632         uchar *bmap;
 633         ushort padded_line;
 634         unsigned long width, height, byte_width;
 635         unsigned long pwidth = panel_info.vl_col;
 636         unsigned colors, bpix, bmp_bpix;
 637         unsigned long compression;
 638 #if defined(CONFIG_PXA250)
 639         struct pxafb_info *fbi = &panel_info.pxa;
 640 #elif defined(CONFIG_MPC823)
 641         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 642         volatile cpm8xx_t *cp = &(immr->im_cpm);
 643 #endif
 644
 645         if (!((bmp->header.signature[0]=='B') &&
 646                 (bmp->header.signature[1]=='M'))) {
 647                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 648                 return 1;
 649         }
 650
 651         width = le32_to_cpu (bmp->header.width);
 652         height = le32_to_cpu (bmp->header.height);
 653         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 654         colors = 1 << bmp_bpix;
 655         compression = le32_to_cpu (bmp->header.compression);
 656
 657         bpix = NBITS(panel_info.vl_bpix);
 658
 659         if ((bpix != 1) && (bpix != 8) && (bpix != 16)) {
 660                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 661                         bpix, bmp_bpix);
 662                 return 1;
 663         }
 664
 665         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 666         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16)) {
 667                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 668                         bpix,
 669                         le16_to_cpu(bmp->header.bit_count));
 670                 return 1;
 671         }
 672
 673         debug ("Display-bmp: %d x %d  with %d colors\n",
 674                 (int)width, (int)height, (int)colors);
 675
 676 #if !defined(CONFIG_MCC200)
 677         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 678         if (bmp_bpix == 8) {
 679 #if defined(CONFIG_PXA250)
 680                 cmap = (ushort *)fbi->palette;
 681 #elif defined(CONFIG_MPC823)
 682                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 683 #elif !defined(CONFIG_ATMEL_LCD)
 684                 cmap = panel_info.cmap;
 685 #endif
 686
 687                 cmap_base = cmap;
 688
 689                 /* Set color map */
 690                 for (i=0; i<colors; ++i) {
 691                         bmp_color_table_entry_t cte = bmp->color_table[i];
 692 #if !defined(CONFIG_ATMEL_LCD)
 693                         ushort colreg =
 694                                 ( ((cte.red)   << 8) & 0xf800) |
 695                                 ( ((cte.green) << 3) & 0x07e0) |
 696                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 697 #ifdef CONFIG_SYS_INVERT_COLORS
 698                         *cmap = 0xffff - colreg;
 699 #else
 700                         *cmap = colreg;
 701 #endif
 702 #if defined(CONFIG_MPC823)
 703                         cmap--;
 704 #else
 705                         cmap++;
 706 #endif
 707 #else /* CONFIG_ATMEL_LCD */
 708                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 709 #endif
 710                 }
 711         }
 712 #endif
 713
 714         /*
 715          *  BMP format for Monochrome assumes that the state of a
 716          * pixel is described on a per Bit basis, not per Byte.
 717          *  So, in case of Monochrome BMP we should align widths
 718          * on a byte boundary and convert them from Bit to Byte
 719          * units.
 720          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 721          * their own ways, so make the converting to be MCC200
 722          * specific.
 723          */
 724 #if defined(CONFIG_MCC200)
 725         if (bpix==1)
 726         {
 727                 width = ((width + 7) & ~7) >> 3;
 728                 x     = ((x + 7) & ~7) >> 3;
 729                 pwidth= ((pwidth + 7) & ~7) >> 3;
 730         }
 731 #endif
 732
 733         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 734         if ((x + width)>pwidth)
 735                 width = pwidth - x;
 736         if ((y + height)>panel_info.vl_row)
 737                 height = panel_info.vl_row - y;
 738
 739         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 740         fb   = (uchar *) (lcd_base +
 741                 (y + height - 1) * lcd_line_length + x);
 742
 743         switch (bmp_bpix) {
 744         case 1: /* pass through */
 745         case 8:
 746                 if (bpix != 16)
 747                         byte_width = width;
 748                 else
 749                         byte_width = width * 2;
 750
 751                 for (i = 0; i < height; ++i) {
 752                         WATCHDOG_RESET();
 753                         for (j = 0; j < width; j++) {
 754                                 if (bpix != 16) {
 755 #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD)
 756                                         *(fb++) = *(bmap++);
 757 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 758                                         *(fb++) = 255 - *(bmap++);
 759 #endif
 760                                 } else {
 761                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 762                                         fb += sizeof(uint16_t) / sizeof(*fb);
 763                                 }
 764                         }
 765                         bmap += (width - padded_line);
 766                         fb   -= (byte_width + lcd_line_length);
 767                 }
 768                 break;
 769
 770 #if defined(CONFIG_BMP_16BPP)
 771         case 16:
 772                 for (i = 0; i < height; ++i) {
 773                         WATCHDOG_RESET();
 774                         for (j = 0; j < width; j++) {
 775 #if defined(CONFIG_ATMEL_LCD_BGR555)
 776                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 777                                         (bmap[1] & 0x03);
 778                                 *(fb++) = (bmap[0] & 0xe0) |
 779                                         ((bmap[1] & 0x7c) >> 2);
 780                                 bmap += 2;
 781 #else
 782                                 *(fb++) = *(bmap++);
 783                                 *(fb++) = *(bmap++);
 784 #endif
 785                         }
 786                         bmap += (padded_line - width) * 2;
 787                         fb   -= (width * 2 + lcd_line_length);
 788                 }
 789                 break;
 790 #endif /* CONFIG_BMP_16BPP */
 791
 792         default:
 793                 break;
 794         };
 795
 796         return (0);
 797 }
 798 #endif
 799
 800 #ifdef CONFIG_VIDEO_BMP_GZIP
 801 extern bmp_image_t *gunzip_bmp(unsigned long addr, unsigned long *lenp);
 802 #endif
 803
 804 static void *lcd_logo (void)
 805 {
 806 #ifdef CONFIG_SPLASH_SCREEN
 807         char *s;
 808         ulong addr;
 809         static int do_splash = 1;
 810
 811         if (do_splash && (s = getenv("splashimage")) != NULL) {
 812                 addr = simple_strtoul(s, NULL, 16);
 813                 do_splash = 0;
 814
 815 #ifdef CONFIG_VIDEO_BMP_GZIP
 816                 bmp_image_t *bmp = (bmp_image_t *)addr;
 817                 unsigned long len;
 818
 819                 if (!((bmp->header.signature[0]=='B') &&
 820                       (bmp->header.signature[1]=='M'))) {
 821                         addr = (ulong)gunzip_bmp(addr, &len);
 822                 }
 823 #endif
 824
 825                 if (lcd_display_bitmap (addr, 0, 0) == 0) {
 826                         return ((void *)lcd_base);
 827                 }
 828         }
 829 #endif /* CONFIG_SPLASH_SCREEN */
 830
 831 #ifdef CONFIG_LCD_LOGO
 832         bitmap_plot (0, 0);
 833 #endif /* CONFIG_LCD_LOGO */
 834
 835 #ifdef CONFIG_LCD_INFO
 836         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 837         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 838         lcd_show_board_info();
 839 #endif /* CONFIG_LCD_INFO */
 840
 841 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 842         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 843 #else
 844         return ((void *)lcd_base);
 845 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 846 }
 847
 848 /************************************************************************/
 849 /************************************************************************/