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 /*#define DEBUG */
  30
  31 #include <config.h>
  32 #include <common.h>
  33 #include <command.h>
  34 #include <version.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 #ifdef CONFIG_LCD
  53
  54 /************************************************************************/
  55 /* ** FONT DATA                                                         */
  56 /************************************************************************/
  57 #include <video_font.h>         /* Get font data, width and height      */
  58
  59 /************************************************************************/
  60 /* ** LOGO DATA                                                         */
  61 /************************************************************************/
  62 #ifdef CONFIG_LCD_LOGO
  63 # include <bmp_logo.h>          /* Get logo data, width and height      */
  64 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET)
  65 //#  error Default Color Map overlaps with Logo Color Map
  66 # endif
  67 #endif
  68
  69 DECLARE_GLOBAL_DATA_PTR;
  70
  71 ulong lcd_setmem (ulong addr);
  72
  73 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  74 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  75 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  76
  77 static int lcd_init (void *lcdbase);
  78
  79 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  80 extern void lcd_ctrl_init (void *lcdbase);
  81 extern void lcd_enable (void);
  82 static void *lcd_logo (void);
  83
  84 #ifdef CONFIG_JzRISC              /* JzRISC core */
  85 extern int flush_cache_all(void);
  86 extern void jz_slcd_update(void);
  87 extern void write_frame();
  88 #endif
  89
  90 #if LCD_BPP == LCD_COLOR8
  91 extern void lcd_setcolreg (ushort regno,
  92                                 ushort red, ushort green, ushort blue);
  93 #endif
  94 #if LCD_BPP == LCD_MONOCHROME
  95 extern void lcd_initcolregs (void);
  96 #endif
  97
  98 static int lcd_getbgcolor (void);
  99 static void lcd_setfgcolor (int color);
 100 static void lcd_setbgcolor (int color);
 101
 102 char lcd_is_enabled = 0;
 103 extern vidinfo_t panel_info;
 104
 105 #ifdef  NOT_USED_SO_FAR
 106 static void lcd_getcolreg (ushort regno,
 107                                 ushort *red, ushort *green, ushort *blue);
 108 static int lcd_getfgcolor (void);
 109 #endif  /* NOT_USED_SO_FAR */
 110
 111 /************************************************************************/
 112
 113 /*----------------------------------------------------------------------*/
 114
 115 static void console_scrollup (void)
 116 {
 117 #if 1
 118         /* Copy up rows ignoring the first one */
 119         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 120
 121         /* Clear the last one */
 122         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 123 #else
 124         /*
 125          * Poor attempt to optimize speed by moving "long"s.
 126          * But the code is ugly, and not a bit faster :-(
 127          */
 128         ulong *t = (ulong *)CONSOLE_ROW_FIRST;
 129         ulong *s = (ulong *)CONSOLE_ROW_SECOND;
 130         ulong    l = CONSOLE_SCROLL_SIZE / sizeof(ulong);
 131         uchar  c = lcd_color_bg & 0xFF;
 132         ulong val= (c<<24) | (c<<16) | (c<<8) | c;
 133
 134         while (l--)
 135                 *t++ = *s++;
 136
 137         t = (ulong *)CONSOLE_ROW_LAST;
 138         l = CONSOLE_ROW_SIZE / sizeof(ulong);
 139
 140         while (l-- > 0)
 141                 *t++ = val;
 142 #endif
 143 }
 144
 145 /*----------------------------------------------------------------------*/
 146
 147 static inline void console_back (void)
 148 {
 149         if (--console_col < 0) {
 150                 console_col = CONSOLE_COLS-1 ;
 151                 if (--console_row < 0) {
 152                         console_row = 0;
 153                 }
 154         }
 155
 156         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 157                      console_row * VIDEO_FONT_HEIGHT,
 158                      ' ');
 159 }
 160
 161 /*----------------------------------------------------------------------*/
 162
 163 static inline void console_newline (void)
 164 {
 165         ++console_row;
 166         console_col = 0;
 167
 168         /* Check if we need to scroll the terminal */
 169         if (console_row >= CONSOLE_ROWS) {
 170                 /* Scroll everything up */
 171                 console_scrollup () ;
 172                 --console_row;
 173         }
 174 }
 175
 176 /*----------------------------------------------------------------------*/
 177 #ifndef CFG_LCD_LOGOONLY_NOINFO
 178 void lcd_putc (const char c)
 179 {
 180         serial_putc(c);
 181
 182         if (!lcd_is_enabled) {
 183                 return;
 184         }
 185
 186         if ( BMP_LOGO_HEIGHT > (panel_info.vl_row - 2*VIDEO_FONT_HEIGHT))
 187                 return ;
 188
 189         switch (c) {
 190         case '\r':      console_col = 0;
 191                         return;
 192
 193         case '\n':      console_newline();
 194                         return;
 195
 196         case '\t':      /* Tab (8 chars alignment) */
 197                         console_col |=  8;
 198                         console_col &= ~7;
 199
 200                         if (console_col >= CONSOLE_COLS) {
 201                                 console_newline();
 202                         }
 203                         return;
 204
 205         case '\b':      console_back();
 206                         return;
 207
 208         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 209                                      console_row * VIDEO_FONT_HEIGHT,
 210                                      c);
 211                         if (++console_col >= CONSOLE_COLS) {
 212                                 console_newline();
 213                         }
 214                         return;
 215         }
 216         /* NOTREACHED */
 217 }
 218 #else         /* CFG_LCD_LOGOONLY_NOINFO, no info printed */
 219 void lcd_putc (const char c)
 220 {
 221         serial_putc(c);
 222 }
 223 #endif /* CFG_LCD_LOGOONLY_NOINFO */
 224 /*----------------------------------------------------------------------*/
 225
 226 void lcd_puts (const char *s)
 227 {
 228         if (!lcd_is_enabled) {
 229                 serial_puts (s);
 230                 return;
 231         }
 232
 233         while (*s) {
 234                 lcd_putc (*s++);
 235         }
 236 }
 237
 238 /************************************************************************/
 239 /* ** Low-Level Graphics Routines                                       */
 240 /************************************************************************/
 241
 242 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 243 {
 244
 245         uchar *dest;
 246         ushort off, row;
 247
 248         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 249         off  = x * (1 << LCD_BPP) % 8;
 250
 251         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 252                 uchar *s = str;
 253                 uchar *d = dest;
 254                 int i;
 255
 256 #if LCD_BPP == LCD_MONOCHROME
 257                 uchar rest = *d & -(1 << (8-off));
 258                 uchar sym;
 259 #endif
 260                 for (i=0; i<count; ++i) {
 261                         uchar c, bits;
 262
 263                         c = *s++;
 264                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 265
 266 #if LCD_BPP == LCD_MONOCHROME
 267                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 268                                (COLOR_MASK(lcd_color_bg) & ~bits);
 269
 270                         *d++ = rest | (sym >> off);
 271                         rest = sym << (8-off);
 272 #elif LCD_BPP == LCD_COLOR8
 273                         for (c=0; c<8; ++c) {
 274                                 *d++ = (bits & 0x80) ?
 275                                         lcd_color_fg : lcd_color_bg;
 276                                 bits <<= 1;
 277                         }
 278 #elif LCD_BPP == LCD_COLOR16
 279                         ushort *m = (ushort *)d;
 280                         for (c=0; c< 8; ++c) {
 281                                 *m++ = (bits & 0x80) ?
 282                                         lcd_color_fg : lcd_color_bg;
 283                                 d+=2;
 284                                 bits <<= 1;
 285                         }
 286 #elif LCD_BPP == LCD_COLOR18
 287                         uint *m = (uint *)d;
 288                         for (c=0; c< 8 ; ++c) {
 289                                 *m++ = (bits & 0x80) ?
 290                                         lcd_color_fg : lcd_color_bg;
 291                                 d+=4;
 292                                 bits <<= 1;
 293                         }
 294 #endif
 295                 }
 296 #if LCD_BPP == LCD_MONOCHROME
 297                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 298 #endif
 299         }
 300
 301 #ifdef CONFIG_JZSLCD
 302         //lcd_set_target(100,100,panel_info.vl_col,panel_info.vl_row);
 303         write_frame();
 304         jz_slcd_update();
 305
 306 #endif
 307 #ifdef CONFIG_JzRISC              /* JzRISC core */
 308         flush_cache_all();
 309 #endif
 310 }
 311
 312 /*----------------------------------------------------------------------*/
 313
 314 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 315 {
 316 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 317         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 318 #else
 319         lcd_drawchars (x, y, s, strlen ((char *)s));
 320 #endif
 321 }
 322
 323 /*----------------------------------------------------------------------*/
 324
 325 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 326 {
 327 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 328         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 329 #else
 330         lcd_drawchars (x, y, &c, 1);
 331 #endif
 332 }
 333
 334 /************************************************************************/
 335 /**  Small utility to check that you got the colours right              */
 336 /************************************************************************/
 337 #ifdef LCD_TEST_PATTERN
 338
 339 #define N_BLK_VERT      2
 340 #define N_BLK_HOR       3
 341
 342 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 343         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 344         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 345 };
 346
 347 static void test_pattern (void)
 348 {
 349         ushort v_max  = panel_info.vl_row;
 350         ushort h_max  = panel_info.vl_col;
 351         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 352         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 353         ushort v, h;
 354         uchar *pix = (uchar *)lcd_base;
 355
 356         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 357                 h_max, v_max, h_step, v_step);
 358
 359         /* WARNING: Code silently assumes 8bit/pixel */
 360         for (v=0; v<v_max; ++v) {
 361                 uchar iy = v / v_step;
 362                 for (h=0; h<h_max; ++h) {
 363                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 364                         *pix++ = test_colors[ix];
 365                 }
 366         }
 367 }
 368 #endif /* LCD_TEST_PATTERN */
 369
 370
 371 /************************************************************************/
 372 /* ** GENERIC Initialization Routines                                   */
 373 /************************************************************************/
 374
 375 int drv_lcd_init (void)
 376 {
 377         device_t lcddev;
 378         int rc;
 379
 380         lcd_base = (void *)(gd->fb_base);
 381
 382         lcd_line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 383
 384         lcd_init (lcd_base);            /* LCD initialization */
 385
 386         /* Device initialization */
 387         memset (&lcddev, 0, sizeof (lcddev));
 388
 389         strcpy (lcddev.name, "lcd");
 390         lcddev.ext   = 0;                       /* No extensions */
 391         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 392         lcddev.putc  = lcd_putc;                /* 'putc' function */
 393         lcddev.puts  = lcd_puts;                /* 'puts' function */
 394
 395         rc = device_register (&lcddev);
 396
 397         return (rc == 0) ? 1 : rc;
 398 }
 399
 400 /*----------------------------------------------------------------------*/
 401 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 402 {
 403 #if LCD_BPP == LCD_MONOCHROME
 404         /* Setting the palette */
 405         lcd_initcolregs();
 406
 407 #elif LCD_BPP == LCD_COLOR8
 408         /* Setting the palette */
 409         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 410         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 411         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 412         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 413         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 414         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 415         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 416         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 417         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 418 #endif
 419
 420 #ifndef CFG_WHITE_ON_BLACK
 421         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 422         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 423 #else
 424         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 425         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 426 #endif  /* CFG_WHITE_ON_BLACK */
 427
 428 #ifdef  LCD_TEST_PATTERN
 429         test_pattern();
 430 #else
 431         /* set framebuffer to background color */
 432 #if LCD_BPP == LCD_COLOR16
 433         long long i;
 434         short *lcdbase_p = (short *)lcd_base;
 435         for(i=0;i<lcd_line_length*panel_info.vl_row/2;i++)
 436                 *lcdbase_p++ = COLOR_MASK(lcd_getbgcolor());
 437
 438 #elif LCD_BPP == LCD_COLOR18
 439         long long i;
 440         int *lcdbase_p = (int *)lcd_base;
 441         for(i=0;i<lcd_line_length*panel_info.vl_row/4;i++)
 442                 *lcdbase_p++ = COLOR_MASK(lcd_getbgcolor());
 443 #else
 444         memset ((char *)lcd_base,
 445                 COLOR_MASK(lcd_getbgcolor()),
 446                 lcd_line_length*panel_info.vl_row);
 447 #endif
 448 #endif
 449
 450         /* Paint the logo and retrieve LCD base address */
 451         debug ("[LCD] Drawing the logo...\n");
 452         lcd_console_address = lcd_logo ();
 453
 454         console_col = 0;
 455         console_row = 0;
 456
 457         return (0);
 458 }
 459
 460 U_BOOT_CMD(
 461         cls,    1,      1,      lcd_clear,
 462         "cls     - clear screen\n",
 463         NULL
 464 );
 465
 466 /*----------------------------------------------------------------------*/
 467
 468 static int lcd_init (void *lcdbase)
 469 {
 470         /* Initialize the lcd controller */
 471         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 472
 473         lcd_ctrl_init (lcdbase);
 474         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 475         lcd_enable ();
 476
 477         /* Initialize the console */
 478         console_col = 0;
 479 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 480         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 481 #else
 482         console_row = 1;        /* leave 1 blank line below logo */
 483 #endif
 484         lcd_is_enabled = 1;
 485
 486         return 0;
 487 }
 488
 489
 490 /************************************************************************/
 491 /* ** ROM capable initialization part - needed to reserve FB memory     */
 492 /************************************************************************/
 493 /*
 494  * This is called early in the system initialization to grab memory
 495  * for the LCD controller.
 496  * Returns new address for monitor, after reserving LCD buffer memory
 497  *
 498  * Note that this is running from ROM, so no write access to global data.
 499  */
 500 ulong lcd_setmem (ulong addr)
 501 {
 502         ulong size;
 503         int line_length = (panel_info.vl_col * NBITS (panel_info.vl_bpix)) / 8;
 504
 505         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 506                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 507
 508         size = line_length * panel_info.vl_row;
 509
 510         /* Round up to nearest full page */
 511         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 512
 513         /* Allocate pages for the frame buffer. */
 514         addr -= size;
 515
 516         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 517
 518         return (addr);
 519 }
 520
 521 /*----------------------------------------------------------------------*/
 522
 523 static void lcd_setfgcolor (int color)
 524 {
 525 #if LCD_BPP == LCD_COLOR16
 526         lcd_color_fg = color & 0xFFFF;
 527
 528 #elif LCD_BPP == LCD_COLOR18
 529         lcd_color_fg = color & 0xFFFFFFFF;
 530 #else
 531         lcd_color_fg = color & 0xF;
 532 #endif
 533 }
 534
 535 /*----------------------------------------------------------------------*/
 536
 537 static void lcd_setbgcolor (int color)
 538 {
 539 #if LCD_BPP == LCD_COLOR16
 540         lcd_color_bg = color & 0xFFFF;
 541
 542 #elif LCD_BPP == LCD_COLOR18
 543         lcd_color_bg = color & 0xFFFFFFFF;
 544 #else
 545         lcd_color_bg = color & 0xF;
 546 #endif
 547 }
 548
 549 /*----------------------------------------------------------------------*/
 550
 551 #ifdef  NOT_USED_SO_FAR
 552 static int lcd_getfgcolor (void)
 553 {
 554         return lcd_color_fg;
 555
 556 }
 557 #endif  /* NOT_USED_SO_FAR */
 558
 559 /*----------------------------------------------------------------------*/
 560
 561 static int lcd_getbgcolor (void)
 562 {
 563         return lcd_color_bg;
 564 }
 565
 566 /*----------------------------------------------------------------------*/
 567
 568 /************************************************************************/
 569 /* ** Chipset depending Bitmap / Logo stuff...                          */
 570 /************************************************************************/
 571 #ifdef CONFIG_LCD_LOGO
 572 void bitmap_plot (int x, int y)
 573 {
 574         ushort *cmap;
 575         ushort i, j;
 576         uchar *bmap;
 577         uchar *fb;
 578         ushort *fb16;
 579         uint *fb32;
 580 #if defined(CONFIG_PXA250)
 581         struct pxafb_info *fbi = &panel_info.pxa;
 582 #elif defined(CONFIG_MPC823)
 583         volatile immap_t *immr = (immap_t *) CFG_IMMR;
 584         volatile cpm8xx_t *cp = &(immr->im_cpm);
 585 #endif
 586         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 587                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 588                 sizeof(bmp_logo_palette)/(sizeof(ushort)));
 589
 590         bmap = &bmp_logo_bitmap[0];
 591         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 592
 593         if (NBITS(panel_info.vl_bpix) < 12) {
 594                 /* Leave room for default color map */
 595 #if defined(CONFIG_PXA250)
 596                 cmap = (ushort *)fbi->palette;
 597 #elif defined(CONFIG_MPC823)
 598                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 599 #endif
 600
 601                 WATCHDOG_RESET();
 602
 603                 /* Set color map */
 604
 605                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 606                         ushort colreg = bmp_logo_palette[i];
 607 #ifdef  CFG_INVERT_COLORS
 608                         *cmap++ = 0xffff - colreg;
 609 #else
 610                         *cmap++ = colreg;
 611 #endif
 612                 }
 613
 614                 WATCHDOG_RESET();
 615
 616                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 617                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 618                         bmap += BMP_LOGO_WIDTH;
 619                         fb   += panel_info.vl_col;
 620                 }
 621         }
 622         else{   /* true color mode */
 623                 if(NBITS(panel_info.vl_bpix) == 16){
 624                         fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 625                         for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 626                                 for (j=0; j<BMP_LOGO_WIDTH; j++) {
 627                                         fb16[j] = bmp_logo_palette[(bmap[j])];
 628                                 }
 629                                 bmap += BMP_LOGO_WIDTH;
 630                                 fb16 += panel_info.vl_col;
 631                         }
 632                 }
 633                 else{
 634                         fb32 = (uint *)(lcd_base + y * lcd_line_length + x);
 635                         for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 636                                 for (j=0; j<BMP_LOGO_WIDTH; j++) {
 637                                         fb32[j] = bmp_logo_palette[(bmap[j])];
 638                                 }
 639                                 bmap += BMP_LOGO_WIDTH;
 640                                 fb32 += panel_info.vl_col;
 641                         }
 642
 643                 }
 644         }
 645
 646         WATCHDOG_RESET();
 647 }
 648 #endif /* CONFIG_LCD_LOGO */
 649
 650 /*----------------------------------------------------------------------*/
 651 #if (CONFIG_COMMANDS & CFG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 652 /*
 653  * Display the BMP file located at address bmp_image.
 654  * Only uncompressed.
 655  */
 656 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 657 {
 658 #if !defined(CONFIG_MCC200)
 659         ushort *cmap;
 660 #endif
 661         ushort i, j;
 662         uchar *fb;
 663         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 664         uchar *bmap;
 665         ushort padded_line;
 666         unsigned long width, height;
 667         unsigned long pwidth = panel_info.vl_col;
 668         unsigned colors,bpix;
 669         unsigned long compression;
 670 #if defined(CONFIG_PXA250)
 671         struct pxafb_info *fbi = &panel_info.pxa;
 672 #elif defined(CONFIG_MPC823)
 673         volatile immap_t *immr = (immap_t *) CFG_IMMR;
 674         volatile cpm8xx_t *cp = &(immr->im_cpm);
 675 #endif
 676
 677         if (!((bmp->header.signature[0]=='B') &&
 678                 (bmp->header.signature[1]=='M'))) {
 679                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 680                 return 1;
 681 }
 682
 683         width = le32_to_cpu (bmp->header.width);
 684         height = le32_to_cpu (bmp->header.height);
 685         colors = 1<<le16_to_cpu (bmp->header.bit_count);
 686         compression = le32_to_cpu (bmp->header.compression);
 687
 688         bpix = NBITS(panel_info.vl_bpix);
 689
 690         if ((bpix != 1) && (bpix != 8)) {
 691                 printf ("Error: %d bit/pixel mode not supported by U-Boot\n",
 692                         bpix);
 693                 return 1;
 694         }
 695
 696         if (bpix != le16_to_cpu(bmp->header.bit_count)) {
 697                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 698                         bpix,
 699                         le16_to_cpu(bmp->header.bit_count));
 700                 return 1;
 701         }
 702
 703         debug ("Display-bmp: %d x %d  with %d colors\n",
 704                 (int)width, (int)height, (int)colors);
 705
 706 #if !defined(CONFIG_MCC200)
 707         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 708         if (bpix==8) {
 709 #if defined(CONFIG_PXA250)
 710                 cmap = (ushort *)fbi->palette;
 711 #elif defined(CONFIG_MPC823)
 712                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 713 #else
 714 # error "Don't know location of color map"
 715 #endif
 716
 717                 /* Set color map */
 718                 for (i=0; i<colors; ++i) {
 719                         bmp_color_table_entry_t cte = bmp->color_table[i];
 720                         ushort colreg =
 721                                 ( ((cte.red)   << 8) & 0xf800) |
 722                                 ( ((cte.green) << 3) & 0x07e0) |
 723                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 724 #ifdef CFG_INVERT_COLORS
 725                         *cmap = 0xffff - colreg;
 726 #else
 727                         *cmap = colreg;
 728 #endif
 729 #if defined(CONFIG_PXA250)
 730                         cmap++;
 731 #elif defined(CONFIG_MPC823)
 732                         cmap--;
 733 #endif
 734                 }
 735         }
 736 #endif
 737
 738         /*
 739          *  BMP format for Monochrome assumes that the state of a
 740          * pixel is described on a per Bit basis, not per Byte.
 741          *  So, in case of Monochrome BMP we should align widths
 742          * on a byte boundary and convert them from Bit to Byte
 743          * units.
 744          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 745          * their own ways, so make the converting to be MCC200
 746          * specific.
 747          */
 748 #if defined(CONFIG_MCC200)
 749         if (bpix==1)
 750         {
 751                 width = ((width + 7) & ~7) >> 3;
 752                 x     = ((x + 7) & ~7) >> 3;
 753                 pwidth= ((pwidth + 7) & ~7) >> 3;
 754         }
 755 #endif
 756
 757         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 758         if ((x + width)>pwidth)
 759                 width = pwidth - x;
 760         if ((y + height)>panel_info.vl_row)
 761                 height = panel_info.vl_row - y;
 762
 763         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 764         fb   = (uchar *) (lcd_base +
 765                 (y + height - 1) * lcd_line_length + x);
 766         for (i = 0; i < height; ++i) {
 767                 WATCHDOG_RESET();
 768                 for (j = 0; j < width ; j++)
 769 #if defined(CONFIG_PXA250)
 770                         *(fb++)=*(bmap++);
 771 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 772                         *(fb++)=255-*(bmap++);
 773 #endif
 774                 bmap += (width - padded_line);
 775                 fb   -= (width + lcd_line_length);
 776         }
 777
 778         return (0);
 779 }
 780 #endif /* (CONFIG_COMMANDS & CFG_CMD_BMP) || CONFIG_SPLASH_SCREEN */
 781
 782
 783 static void *lcd_logo (void)
 784 {
 785 #ifdef CONFIG_LCD_INFO
 786         char info[80];
 787         char temp[32];
 788 #endif /* CONFIG_LCD_INFO */
 789
 790 #ifdef CONFIG_SPLASH_SCREEN
 791         char *s;
 792         ulong addr;
 793         static int do_splash = 1;
 794
 795         if (do_splash && (s = getenv("splashimage")) != NULL) {
 796                 addr = simple_strtoul(s, NULL, 16);
 797                 do_splash = 0;
 798
 799                 if (lcd_display_bitmap (addr, 0, 0) == 0) {
 800                         return ((void *)lcd_base);
 801                 }
 802         }
 803 #endif /* CONFIG_SPLASH_SCREEN */
 804
 805 #ifdef CONFIG_LCD_LOGO
 806         bitmap_plot (0, 0);
 807         flush_cache_all();
 808 #endif /* CONFIG_LCD_LOGO */
 809
 810 #ifdef CONFIG_MPC823
 811 # ifdef CONFIG_LCD_INFO
 812         sprintf (info, "%s (%s - %s) ", U_BOOT_VERSION, __DATE__, __TIME__);
 813         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y, (uchar *)info, strlen(info));
 814
 815         sprintf (info, "(C) 2004 DENX Software Engineering");
 816         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT,
 817                                         (uchar *)info, strlen(info));
 818
 819         sprintf (info, "    Wolfgang DENK, wd@denx.de");
 820         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 2,
 821                                         (uchar *)info, strlen(info));
 822 #  ifdef CONFIG_LCD_INFO_BELOW_LOGO
 823         sprintf (info, "MPC823 CPU at %s MHz",
 824                 strmhz(temp, gd->cpu_clk));
 825         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 3,
 826                                         info, strlen(info));
 827         sprintf (info, "  %ld MB RAM, %ld MB Flash",
 828                 gd->ram_size >> 20,
 829                 gd->bd->bi_flashsize >> 20 );
 830         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
 831                                         info, strlen(info));
 832 #  else
 833         /* leave one blank line */
 834
 835         sprintf (info, "MPC823 CPU at %s MHz, %ld MB RAM, %ld MB Flash",
 836                 strmhz(temp, gd->cpu_clk),
 837                 gd->ram_size >> 20,
 838                 gd->bd->bi_flashsize >> 20 );
 839         lcd_drawchars (LCD_INFO_X, LCD_INFO_Y + VIDEO_FONT_HEIGHT * 4,
 840                                         (uchar *)info, strlen(info));
 841
 842 #  endif /* CONFIG_LCD_INFO_BELOW_LOGO */
 843 # endif /* CONFIG_LCD_INFO */
 844 #endif /* CONFIG_MPC823 */
 845
 846 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 847         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 848 #else
 849         return ((void *)lcd_base);
 850 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 851 }
 852
 853 /************************************************************************/
 854 /************************************************************************/
 855
 856 #endif /* CONFIG_LCD */