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 #ifndef CONFIG_LCD_ALIGNMENT
  76 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
  77 #endif
  78
  79 DECLARE_GLOBAL_DATA_PTR;
  80
  81 ulong lcd_setmem (ulong addr);
  82
  83 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
  84 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
  85 static inline void lcd_putc_xy(ushort x, ushort y, uchar  c);
  86
  87 static int lcd_init(void *lcdbase);
  88
  89 static void *lcd_logo (void);
  90
  91 static int lcd_getbgcolor(void);
  92 static void lcd_setfgcolor(int color);
  93 static void lcd_setbgcolor(int color);
  94
  95 char lcd_is_enabled = 0;
  96
  97 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
  98
  99
 100 #ifdef  NOT_USED_SO_FAR
 101 static void lcd_getcolreg(ushort regno,
 102                                 ushort *red, ushort *green, ushort *blue);
 103 static int lcd_getfgcolor(void);
 104 #endif  /* NOT_USED_SO_FAR */
 105
 106 /************************************************************************/
 107
 108 /* Flush LCD activity to the caches */
 109 void lcd_sync(void)
 110 {
 111         /*
 112          * flush_dcache_range() is declared in common.h but it seems that some
 113          * architectures do not actually implement it. Is there a way to find
 114          * out whether it exists? For now, ARM is safe.
 115          */
 116 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
 117         int line_length;
 118
 119         if (lcd_flush_dcache)
 120                 flush_dcache_range((u32)lcd_base,
 121                         (u32)(lcd_base + lcd_get_size(&line_length)));
 122 #endif
 123 }
 124
 125 void lcd_set_flush_dcache(int flush)
 126 {
 127         lcd_flush_dcache = (flush != 0);
 128 }
 129
 130 /*----------------------------------------------------------------------*/
 131
 132 static void console_scrollup(void)
 133 {
 134         /* Copy up rows ignoring the first one */
 135         memcpy(CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 136
 137         /* Clear the last one */
 138         memset(CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 139         lcd_sync();
 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 static inline void console_newline(void)
 160 {
 161         ++console_row;
 162         console_col = 0;
 163
 164         /* Check if we need to scroll the terminal */
 165         if (console_row >= CONSOLE_ROWS) {
 166                 /* Scroll everything up */
 167                 console_scrollup();
 168                 --console_row;
 169         } else {
 170                 lcd_sync();
 171         }
 172 }
 173
 174 /*----------------------------------------------------------------------*/
 175
 176 void lcd_putc(const char c)
 177 {
 178         if (!lcd_is_enabled) {
 179                 serial_putc(c);
 180
 181                 return;
 182         }
 183
 184         switch (c) {
 185         case '\r':
 186                 console_col = 0;
 187
 188                 return;
 189         case '\n':
 190                 console_newline();
 191
 192                 return;
 193         case '\t':      /* Tab (8 chars alignment) */
 194                 console_col +=  8;
 195                 console_col &= ~7;
 196
 197                 if (console_col >= CONSOLE_COLS)
 198                         console_newline();
 199
 200                 return;
 201         case '\b':
 202                 console_back();
 203
 204                 return;
 205         default:
 206                 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
 207                         console_row * VIDEO_FONT_HEIGHT, c);
 208                 if (++console_col >= CONSOLE_COLS)
 209                         console_newline();
 210         }
 211 }
 212
 213 /*----------------------------------------------------------------------*/
 214
 215 void lcd_puts(const char *s)
 216 {
 217         if (!lcd_is_enabled) {
 218                 serial_puts(s);
 219
 220                 return;
 221         }
 222
 223         while (*s) {
 224                 lcd_putc(*s++);
 225         }
 226         lcd_sync();
 227 }
 228
 229 /*----------------------------------------------------------------------*/
 230
 231 void lcd_printf(const char *fmt, ...)
 232 {
 233         va_list args;
 234         char buf[CONFIG_SYS_PBSIZE];
 235
 236         va_start(args, fmt);
 237         vsprintf(buf, fmt, args);
 238         va_end(args);
 239
 240         lcd_puts(buf);
 241 }
 242
 243 /************************************************************************/
 244 /* ** Low-Level Graphics Routines                                       */
 245 /************************************************************************/
 246
 247 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
 248 {
 249         uchar *dest;
 250         ushort row;
 251
 252 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 253         y += BMP_LOGO_HEIGHT;
 254 #endif
 255
 256 #if LCD_BPP == LCD_MONOCHROME
 257         ushort off  = x * (1 << LCD_BPP) % 8;
 258 #endif
 259
 260         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 261
 262         for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
 263                 uchar *s = str;
 264                 int i;
 265 #if LCD_BPP == LCD_COLOR16
 266                 ushort *d = (ushort *)dest;
 267 #else
 268                 uchar *d = dest;
 269 #endif
 270
 271 #if LCD_BPP == LCD_MONOCHROME
 272                 uchar rest = *d & -(1 << (8-off));
 273                 uchar sym;
 274 #endif
 275                 for (i = 0; i < count; ++i) {
 276                         uchar c, bits;
 277
 278                         c = *s++;
 279                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 280
 281 #if LCD_BPP == LCD_MONOCHROME
 282                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 283                                 (COLOR_MASK(lcd_color_bg) & ~bits);
 284
 285                         *d++ = rest | (sym >> off);
 286                         rest = sym << (8-off);
 287 #elif LCD_BPP == LCD_COLOR8
 288                         for (c = 0; c < 8; ++c) {
 289                                 *d++ = (bits & 0x80) ?
 290                                                 lcd_color_fg : lcd_color_bg;
 291                                 bits <<= 1;
 292                         }
 293 #elif LCD_BPP == LCD_COLOR16
 294                         for (c = 0; c < 8; ++c) {
 295                                 *d++ = (bits & 0x80) ?
 296                                                 lcd_color_fg : lcd_color_bg;
 297                                 bits <<= 1;
 298                         }
 299 #endif
 300                 }
 301 #if LCD_BPP == LCD_MONOCHROME
 302                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 303 #endif
 304         }
 305 }
 306
 307 /*----------------------------------------------------------------------*/
 308
 309 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
 310 {
 311         lcd_drawchars(x, y, s, strlen((char *)s));
 312 }
 313
 314 /*----------------------------------------------------------------------*/
 315
 316 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
 317 {
 318         lcd_drawchars(x, y, &c, 1);
 319 }
 320
 321 /************************************************************************/
 322 /**  Small utility to check that you got the colours right              */
 323 /************************************************************************/
 324 #ifdef LCD_TEST_PATTERN
 325
 326 #define N_BLK_VERT      2
 327 #define N_BLK_HOR       3
 328
 329 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 330         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 331         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 332 };
 333
 334 static void test_pattern(void)
 335 {
 336         ushort v_max  = panel_info.vl_row;
 337         ushort h_max  = panel_info.vl_col;
 338         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 339         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 340         ushort v, h;
 341         uchar *pix = (uchar *)lcd_base;
 342
 343         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 344                 h_max, v_max, h_step, v_step);
 345
 346         /* WARNING: Code silently assumes 8bit/pixel */
 347         for (v = 0; v < v_max; ++v) {
 348                 uchar iy = v / v_step;
 349                 for (h = 0; h < h_max; ++h) {
 350                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 351                         *pix++ = test_colors[ix];
 352                 }
 353         }
 354 }
 355 #endif /* LCD_TEST_PATTERN */
 356
 357
 358 /************************************************************************/
 359 /* ** GENERIC Initialization Routines                                   */
 360 /************************************************************************/
 361
 362 int lcd_get_size(int *line_length)
 363 {
 364         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
 365         return *line_length * panel_info.vl_row;
 366 }
 367
 368 int drv_lcd_init (void)
 369 {
 370         struct stdio_dev lcddev;
 371         int rc;
 372
 373         lcd_base = (void *)(gd->fb_base);
 374
 375         lcd_get_size(&lcd_line_length);
 376
 377         lcd_init(lcd_base);             /* LCD initialization */
 378
 379         /* Device initialization */
 380         memset(&lcddev, 0, sizeof(lcddev));
 381
 382         strcpy(lcddev.name, "lcd");
 383         lcddev.ext   = 0;                       /* No extensions */
 384         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 385         lcddev.putc  = lcd_putc;                /* 'putc' function */
 386         lcddev.puts  = lcd_puts;                /* 'puts' function */
 387
 388         rc = stdio_register (&lcddev);
 389
 390         return (rc == 0) ? 1 : rc;
 391 }
 392
 393 /*----------------------------------------------------------------------*/
 394 void lcd_clear(void)
 395 {
 396 #if LCD_BPP == LCD_MONOCHROME
 397         /* Setting the palette */
 398         lcd_initcolregs();
 399
 400 #elif LCD_BPP == LCD_COLOR8
 401         /* Setting the palette */
 402         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
 403         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
 404         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
 405         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
 406         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
 407         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
 408         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
 409         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
 410         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
 411 #endif
 412
 413 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 414         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
 415         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
 416 #else
 417         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
 418         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
 419 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 420
 421 #ifdef  LCD_TEST_PATTERN
 422         test_pattern();
 423 #else
 424         /* set framebuffer to background color */
 425         memset((char *)lcd_base,
 426                 COLOR_MASK(lcd_getbgcolor()),
 427                 lcd_line_length*panel_info.vl_row);
 428 #endif
 429         /* Paint the logo and retrieve LCD base address */
 430         debug("[LCD] Drawing the logo...\n");
 431         lcd_console_address = lcd_logo ();
 432
 433         console_col = 0;
 434         console_row = 0;
 435         lcd_sync();
 436 }
 437
 438 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
 439                         char *const argv[])
 440 {
 441         lcd_clear();
 442         return 0;
 443 }
 444
 445 U_BOOT_CMD(
 446         cls,    1,      1,      do_lcd_clear,
 447         "clear screen",
 448         ""
 449 );
 450
 451 /*----------------------------------------------------------------------*/
 452
 453 static int lcd_init(void *lcdbase)
 454 {
 455         /* Initialize the lcd controller */
 456         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 457
 458         lcd_ctrl_init(lcdbase);
 459         lcd_is_enabled = 1;
 460         lcd_clear();
 461         lcd_enable ();
 462
 463         /* Initialize the console */
 464         console_col = 0;
 465 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 466         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 467 #else
 468         console_row = 1;        /* leave 1 blank line below logo */
 469 #endif
 470
 471         return 0;
 472 }
 473
 474
 475 /************************************************************************/
 476 /* ** ROM capable initialization part - needed to reserve FB memory     */
 477 /************************************************************************/
 478 /*
 479  * This is called early in the system initialization to grab memory
 480  * for the LCD controller.
 481  * Returns new address for monitor, after reserving LCD buffer memory
 482  *
 483  * Note that this is running from ROM, so no write access to global data.
 484  */
 485 ulong lcd_setmem(ulong addr)
 486 {
 487         ulong size;
 488         int line_length;
 489
 490         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
 491                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
 492
 493         size = lcd_get_size(&line_length);
 494
 495         /* Round up to nearest full page, or MMU section if defined */
 496         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
 497         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
 498
 499         /* Allocate pages for the frame buffer. */
 500         addr -= size;
 501
 502         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 503
 504         return addr;
 505 }
 506
 507 /*----------------------------------------------------------------------*/
 508
 509 static void lcd_setfgcolor(int color)
 510 {
 511         lcd_color_fg = color;
 512 }
 513
 514 /*----------------------------------------------------------------------*/
 515
 516 static void lcd_setbgcolor(int color)
 517 {
 518         lcd_color_bg = color;
 519 }
 520
 521 /*----------------------------------------------------------------------*/
 522
 523 #ifdef  NOT_USED_SO_FAR
 524 static int lcd_getfgcolor(void)
 525 {
 526         return lcd_color_fg;
 527 }
 528 #endif  /* NOT_USED_SO_FAR */
 529
 530 /*----------------------------------------------------------------------*/
 531
 532 static int lcd_getbgcolor(void)
 533 {
 534         return lcd_color_bg;
 535 }
 536
 537 /*----------------------------------------------------------------------*/
 538
 539 /************************************************************************/
 540 /* ** Chipset depending Bitmap / Logo stuff...                          */
 541 /************************************************************************/
 542 static inline ushort *configuration_get_cmap(void)
 543 {
 544 #if defined CONFIG_CPU_PXA
 545         struct pxafb_info *fbi = &panel_info.pxa;
 546         return (ushort *)fbi->palette;
 547 #elif defined(CONFIG_MPC823)
 548         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 549         cpm8xx_t *cp = &(immr->im_cpm);
 550         return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
 551 #elif defined(CONFIG_ATMEL_LCD)
 552         return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
 553 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
 554         return panel_info.cmap;
 555 #else
 556 #if defined(CONFIG_LCD_LOGO)
 557         return bmp_logo_palette;
 558 #else
 559         return NULL;
 560 #endif
 561 #endif
 562 }
 563
 564 #ifdef CONFIG_LCD_LOGO
 565 void bitmap_plot(int x, int y)
 566 {
 567 #ifdef CONFIG_ATMEL_LCD
 568         uint *cmap = (uint *)bmp_logo_palette;
 569 #else
 570         ushort *cmap = (ushort *)bmp_logo_palette;
 571 #endif
 572         ushort i, j;
 573         uchar *bmap;
 574         uchar *fb;
 575         ushort *fb16;
 576 #if defined(CONFIG_MPC823)
 577         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 578         cpm8xx_t *cp = &(immr->im_cpm);
 579 #endif
 580
 581         debug("Logo: width %d  height %d  colors %d  cmap %d\n",
 582                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 583                 ARRAY_SIZE(bmp_logo_palette));
 584
 585         bmap = &bmp_logo_bitmap[0];
 586         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 587
 588         if (NBITS(panel_info.vl_bpix) < 12) {
 589                 /* Leave room for default color map
 590                  * default case: generic system with no cmap (most likely 16bpp)
 591                  * cmap was set to the source palette, so no change is done.
 592                  * This avoids even more ifdefs in the next stanza
 593                  */
 594 #if defined(CONFIG_MPC823)
 595                 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
 596 #elif defined(CONFIG_ATMEL_LCD)
 597                 cmap = (uint *)configuration_get_cmap();
 598 #else
 599                 cmap = configuration_get_cmap();
 600 #endif
 601
 602                 WATCHDOG_RESET();
 603
 604                 /* Set color map */
 605                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
 606                         ushort colreg = bmp_logo_palette[i];
 607 #ifdef CONFIG_ATMEL_LCD
 608                         uint lut_entry;
 609 #ifdef CONFIG_ATMEL_LCD_BGR555
 610                         lut_entry = ((colreg & 0x000F) << 11) |
 611                                         ((colreg & 0x00F0) <<  2) |
 612                                         ((colreg & 0x0F00) >>  7);
 613 #else /* CONFIG_ATMEL_LCD_RGB565 */
 614                         lut_entry = ((colreg & 0x000F) << 1) |
 615                                         ((colreg & 0x00F0) << 3) |
 616                                         ((colreg & 0x0F00) << 4);
 617 #endif
 618                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 619                         cmap++;
 620 #else /* !CONFIG_ATMEL_LCD */
 621 #ifdef  CONFIG_SYS_INVERT_COLORS
 622                         *cmap++ = 0xffff - colreg;
 623 #else
 624                         *cmap++ = colreg;
 625 #endif
 626 #endif /* CONFIG_ATMEL_LCD */
 627                 }
 628
 629                 WATCHDOG_RESET();
 630
 631                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 632                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
 633                         bmap += BMP_LOGO_WIDTH;
 634                         fb   += panel_info.vl_col;
 635                 }
 636         }
 637         else { /* true color mode */
 638                 u16 col16;
 639                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 640                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 641                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 642                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 643                                 fb16[j] =
 644                                         ((col16 & 0x000F) << 1) |
 645                                         ((col16 & 0x00F0) << 3) |
 646                                         ((col16 & 0x0F00) << 4);
 647                                 }
 648                         bmap += BMP_LOGO_WIDTH;
 649                         fb16 += panel_info.vl_col;
 650                 }
 651         }
 652
 653         WATCHDOG_RESET();
 654         lcd_sync();
 655 }
 656 #else
 657 static inline void bitmap_plot(int x, int y) {}
 658 #endif /* CONFIG_LCD_LOGO */
 659
 660 /*----------------------------------------------------------------------*/
 661 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 662 /*
 663  * Display the BMP file located at address bmp_image.
 664  * Only uncompressed.
 665  */
 666
 667 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 668 #define BMP_ALIGN_CENTER        0x7FFF
 669
 670 static void splash_align_axis(int *axis, unsigned long panel_size,
 671                                         unsigned long picture_size)
 672 {
 673         unsigned long panel_picture_delta = panel_size - picture_size;
 674         unsigned long axis_alignment;
 675
 676         if (*axis == BMP_ALIGN_CENTER)
 677                 axis_alignment = panel_picture_delta / 2;
 678         else if (*axis < 0)
 679                 axis_alignment = panel_picture_delta + *axis + 1;
 680         else
 681                 return;
 682
 683         *axis = max(0, axis_alignment);
 684 }
 685 #endif
 686
 687 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 688 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
 689 #else
 690 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
 691 #endif
 692
 693 #if defined(CONFIG_BMP_16BPP)
 694 #if defined(CONFIG_ATMEL_LCD_BGR555)
 695 static inline void fb_put_word(uchar **fb, uchar **from)
 696 {
 697         *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
 698         *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
 699         *from += 2;
 700 }
 701 #else
 702 static inline void fb_put_word(uchar **fb, uchar **from)
 703 {
 704         *(*fb)++ = *(*from)++;
 705         *(*fb)++ = *(*from)++;
 706 }
 707 #endif
 708 #endif /* CONFIG_BMP_16BPP */
 709
 710 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 711 {
 712 #if !defined(CONFIG_MCC200)
 713         ushort *cmap = NULL;
 714 #endif
 715         ushort *cmap_base = NULL;
 716         ushort i, j;
 717         uchar *fb;
 718         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 719         uchar *bmap;
 720         ushort padded_line;
 721         unsigned long width, height, byte_width;
 722         unsigned long pwidth = panel_info.vl_col;
 723         unsigned colors, bpix, bmp_bpix;
 724
 725         if (!bmp || !((bmp->header.signature[0] == 'B') &&
 726                 (bmp->header.signature[1] == 'M'))) {
 727                 printf("Error: no valid bmp image at %lx\n", bmp_image);
 728
 729                 return 1;
 730         }
 731
 732         width = le32_to_cpu(bmp->header.width);
 733         height = le32_to_cpu(bmp->header.height);
 734         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 735         colors = 1 << bmp_bpix;
 736
 737         bpix = NBITS(panel_info.vl_bpix);
 738
 739         if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
 740                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 741                         bpix, bmp_bpix);
 742
 743                 return 1;
 744         }
 745
 746         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 747         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16 || bpix != 32)) {
 748                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 749                         bpix,
 750                         le16_to_cpu(bmp->header.bit_count));
 751
 752                 return 1;
 753         }
 754
 755         debug("Display-bmp: %d x %d  with %d colors\n",
 756                 (int)width, (int)height, (int)colors);
 757
 758 #if !defined(CONFIG_MCC200)
 759         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 760         if (bmp_bpix == 8) {
 761                 cmap = configuration_get_cmap();
 762                 cmap_base = cmap;
 763
 764                 /* Set color map */
 765                 for (i = 0; i < colors; ++i) {
 766                         bmp_color_table_entry_t cte = bmp->color_table[i];
 767 #if !defined(CONFIG_ATMEL_LCD)
 768                         ushort colreg =
 769                                 ( ((cte.red)   << 8) & 0xf800) |
 770                                 ( ((cte.green) << 3) & 0x07e0) |
 771                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 772 #ifdef CONFIG_SYS_INVERT_COLORS
 773                         *cmap = 0xffff - colreg;
 774 #else
 775                         *cmap = colreg;
 776 #endif
 777 #if defined(CONFIG_MPC823)
 778                         cmap--;
 779 #else
 780                         cmap++;
 781 #endif
 782 #else /* CONFIG_ATMEL_LCD */
 783                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 784 #endif
 785                 }
 786         }
 787 #endif
 788
 789         /*
 790          *  BMP format for Monochrome assumes that the state of a
 791          * pixel is described on a per Bit basis, not per Byte.
 792          *  So, in case of Monochrome BMP we should align widths
 793          * on a byte boundary and convert them from Bit to Byte
 794          * units.
 795          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 796          * their own ways, so make the converting to be MCC200
 797          * specific.
 798          */
 799 #if defined(CONFIG_MCC200)
 800         if (bpix == 1) {
 801                 width = ((width + 7) & ~7) >> 3;
 802                 x     = ((x + 7) & ~7) >> 3;
 803                 pwidth= ((pwidth + 7) & ~7) >> 3;
 804         }
 805 #endif
 806
 807         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 808
 809 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 810         splash_align_axis(&x, pwidth, width);
 811         splash_align_axis(&y, panel_info.vl_row, height);
 812 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 813
 814         if ((x + width) > pwidth)
 815                 width = pwidth - x;
 816         if ((y + height) > panel_info.vl_row)
 817                 height = panel_info.vl_row - y;
 818
 819         bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
 820         fb   = (uchar *) (lcd_base +
 821                 (y + height - 1) * lcd_line_length + x * bpix / 8);
 822
 823         switch (bmp_bpix) {
 824         case 1: /* pass through */
 825         case 8:
 826                 if (bpix != 16)
 827                         byte_width = width;
 828                 else
 829                         byte_width = width * 2;
 830
 831                 for (i = 0; i < height; ++i) {
 832                         WATCHDOG_RESET();
 833                         for (j = 0; j < width; j++) {
 834                                 if (bpix != 16) {
 835                                         FB_PUT_BYTE(fb, bmap);
 836                                 } else {
 837                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 838                                         fb += sizeof(uint16_t) / sizeof(*fb);
 839                                 }
 840                         }
 841                         bmap += (width - padded_line);
 842                         fb   -= (byte_width + lcd_line_length);
 843                 }
 844                 break;
 845
 846 #if defined(CONFIG_BMP_16BPP)
 847         case 16:
 848                 for (i = 0; i < height; ++i) {
 849                         WATCHDOG_RESET();
 850                         for (j = 0; j < width; j++)
 851                                 fb_put_word(&fb, &bmap);
 852
 853                         bmap += (padded_line - width) * 2;
 854                         fb   -= (width * 2 + lcd_line_length);
 855                 }
 856                 break;
 857 #endif /* CONFIG_BMP_16BPP */
 858
 859 #if defined(CONFIG_BMP_32BPP)
 860         case 32:
 861                 for (i = 0; i < height; ++i) {
 862                         for (j = 0; j < width; j++) {
 863                                 *(fb++) = *(bmap++);
 864                                 *(fb++) = *(bmap++);
 865                                 *(fb++) = *(bmap++);
 866                                 *(fb++) = *(bmap++);
 867                         }
 868                         fb  -= (lcd_line_length + width * (bpix / 8));
 869                 }
 870                 break;
 871 #endif /* CONFIG_BMP_32BPP */
 872         default:
 873                 break;
 874         };
 875
 876         lcd_sync();
 877         return 0;
 878 }
 879 #endif
 880
 881 static void *lcd_logo(void)
 882 {
 883 #ifdef CONFIG_SPLASH_SCREEN
 884         char *s;
 885         ulong addr;
 886         static int do_splash = 1;
 887
 888         if (do_splash && (s = getenv("splashimage")) != NULL) {
 889                 int x = 0, y = 0;
 890                 do_splash = 0;
 891
 892                 addr = simple_strtoul (s, NULL, 16);
 893 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 894                 s = getenv("splashpos");
 895                 if (s != NULL) {
 896                         if (s[0] == 'm')
 897                                 x = BMP_ALIGN_CENTER;
 898                         else
 899                                 x = simple_strtol(s, NULL, 0);
 900
 901                         s = strchr(s + 1, ',');
 902                         if (s != NULL) {
 903                                 if (s[1] == 'm')
 904                                         y = BMP_ALIGN_CENTER;
 905                                 else
 906                                         y = simple_strtol (s + 1, NULL, 0);
 907                         }
 908                 }
 909 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 910
 911                 if (bmp_display(addr, x, y) == 0)
 912                         return (void *)lcd_base;
 913         }
 914 #endif /* CONFIG_SPLASH_SCREEN */
 915
 916         bitmap_plot(0, 0);
 917
 918 #ifdef CONFIG_LCD_INFO
 919         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 920         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 921         lcd_show_board_info();
 922 #endif /* CONFIG_LCD_INFO */
 923
 924 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 925         return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
 926 #else
 927         return (void *)lcd_base;
 928 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 929 }
 930
 931 /************************************************************************/
 932 /************************************************************************/