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