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 #include <asm/system.h>
  39 #if defined(CONFIG_POST)
  40 #include <post.h>
  41 #endif
  42 #include <lcd.h>
  43 #include <watchdog.h>
  44
  45 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
  46 #include <asm/byteorder.h>
  47 #endif
  48
  49 #if defined(CONFIG_MPC823)
  50 #include <lcdvideo.h>
  51 #endif
  52
  53 #if defined(CONFIG_ATMEL_LCD)
  54 #include <atmel_lcdc.h>
  55 #endif
  56
  57 /************************************************************************/
  58 /* ** FONT DATA                                                         */
  59 /************************************************************************/
  60 #include <video_font.h>         /* Get font data, width and height      */
  61
  62 /************************************************************************/
  63 /* ** LOGO DATA                                                         */
  64 /************************************************************************/
  65 #ifdef CONFIG_LCD_LOGO
  66 # include <bmp_logo.h>          /* Get logo data, width and height      */
  67 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  68 #  error Default Color Map overlaps with Logo Color Map
  69 # endif
  70 #endif
  71
  72 DECLARE_GLOBAL_DATA_PTR;
  73
  74 ulong lcd_setmem (ulong addr);
  75
  76 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count);
  77 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s);
  78 static inline void lcd_putc_xy (ushort x, ushort y, uchar  c);
  79
  80 static int lcd_init (void *lcdbase);
  81 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
  82                         char *const argv[]);
  83 static void *lcd_logo(void);
  84 int lcd_display_bitmap_24(ulong bmp_image, int x, int y);
  85
  86 static int lcd_getbgcolor(void);
  87 static void lcd_setfgcolor(int color);
  88 static void lcd_setbgcolor(int color);
  89
  90 #ifdef CONFIG_QSD8X50_LCDC
  91 extern void lcdc_drawchar(ushort x, ushort y, uchar c);
  92 extern void lcd_disable(void);
  93 extern void lcd_enable(void);
  94 #endif
  95
  96 static int lcd_getbgcolor (void);
  97 static void lcd_setfgcolor (int color);
  98 static void lcd_setbgcolor (int color);
  99
 100 char lcd_is_enabled = 0;
 101
 102 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
 103
 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 /* Flush LCD activity to the caches */
 114 void lcd_sync(void)
 115 {
 116         int line_length;
 117
 118         if (lcd_flush_dcache)
 119                 flush_dcache_range((ulong)lcd_base,
 120                         (ulong)(lcd_base + lcd_get_size(&line_length)));
 121 }
 122
 123 void lcd_set_flush_dcache(int flush)
 124 {
 125         lcd_flush_dcache = flush != 0;
 126 }
 127
 128 /*----------------------------------------------------------------------*/
 129
 130 static void console_scrollup (void)
 131 {
 132         /* Copy up rows ignoring the first one */
 133         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 134
 135         /* Clear the last one */
 136         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 137         lcd_sync();
 138 }
 139
 140 /*----------------------------------------------------------------------*/
 141
 142 static inline void console_back (void)
 143 {
 144         if (--console_col < 0) {
 145                 console_col = CONSOLE_COLS-1 ;
 146                 if (--console_row < 0) {
 147                         console_row = 0;
 148                 }
 149         }
 150
 151         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 152                      console_row * VIDEO_FONT_HEIGHT,
 153                      ' ');
 154 }
 155
 156 /*----------------------------------------------------------------------*/
 157
 158 static inline void console_newline (void)
 159 {
 160         ++console_row;
 161         console_col = 0;
 162
 163         /* Check if we need to scroll the terminal */
 164         if (console_row >= CONSOLE_ROWS) {
 165                 /* Scroll everything up */
 166                 console_scrollup () ;
 167                 --console_row;
 168         }
 169 }
 170
 171 /*----------------------------------------------------------------------*/
 172
 173 void lcd_putc (const char c)
 174 {
 175         if (!lcd_is_enabled) {
 176                 serial_putc(c);
 177                 return;
 178         }
 179
 180         switch (c) {
 181         case '\r':      console_col = 0;
 182                         return;
 183
 184         case '\n':      console_newline();
 185                         return;
 186
 187         case '\t':      /* Tab (8 chars alignment) */
 188                         console_col +=  8;
 189                         console_col &= ~7;
 190
 191                         if (console_col >= CONSOLE_COLS) {
 192                                 console_newline();
 193                         }
 194                         return;
 195
 196         case '\b':      console_back();
 197                         return;
 198
 199         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 200                                      console_row * VIDEO_FONT_HEIGHT,
 201                                      c);
 202                         if (++console_col >= CONSOLE_COLS) {
 203                                 console_newline();
 204                         }
 205                         return;
 206         }
 207         /* NOTREACHED */
 208 }
 209
 210 /*----------------------------------------------------------------------*/
 211
 212 void lcd_puts (const char *s)
 213 {
 214         if (!lcd_is_enabled) {
 215                 serial_puts (s);
 216                 return;
 217         }
 218
 219         while (*s) {
 220                 lcd_putc (*s++);
 221         }
 222         lcd_sync();
 223 }
 224
 225 /*----------------------------------------------------------------------*/
 226
 227 void lcd_printf(const char *fmt, ...)
 228 {
 229         va_list args;
 230         char buf[CONFIG_SYS_PBSIZE];
 231
 232         va_start(args, fmt);
 233         vsprintf(buf, fmt, args);
 234         va_end(args);
 235
 236         lcd_puts(buf);
 237 }
 238
 239 /************************************************************************/
 240 /* ** Low-Level Graphics Routines                                       */
 241 /************************************************************************/
 242
 243 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 244 {
 245         uchar *dest;
 246         ushort row;
 247
 248 #if LCD_BPP == LCD_MONOCHROME
 249         ushort off;
 250         off  = x * (1 << LCD_BPP) % 8;
 251 #endif
 252         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 253
 254         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 255                 uchar *s = str;
 256                 int i;
 257 #if LCD_BPP == LCD_COLOR16
 258                 ushort *d = (ushort *)dest;
 259 #else
 260                 uchar *d = dest;
 261 #endif
 262
 263 #if LCD_BPP == LCD_MONOCHROME
 264                 uchar rest = *d & -(1 << (8-off));
 265                 uchar sym;
 266 #endif
 267                 for (i=0; i<count; ++i) {
 268                         uchar c, bits;
 269
 270                         c = *s++;
 271                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 272
 273 #if LCD_BPP == LCD_MONOCHROME
 274                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 275                                (COLOR_MASK(lcd_color_bg) & ~bits);
 276
 277                         *d++ = rest | (sym >> off);
 278                         rest = sym << (8-off);
 279 #elif LCD_BPP == LCD_COLOR8
 280                         for (c=0; c<8; ++c) {
 281                                 *d++ = (bits & 0x80) ?
 282                                                 lcd_color_fg : lcd_color_bg;
 283                                 bits <<= 1;
 284                         }
 285 #elif LCD_BPP == LCD_COLOR16
 286                         for (c=0; c<8; ++c) {
 287                                 *d++ = (bits & 0x80) ?
 288                                                 lcd_color_fg : lcd_color_bg;
 289                                 bits <<= 1;
 290                         }
 291 #endif
 292                 }
 293 #if LCD_BPP == LCD_MONOCHROME
 294                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 295 #endif
 296         }
 297 }
 298
 299 /*----------------------------------------------------------------------*/
 300
 301 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 302 {
 303 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 304         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 305 #else
 306         lcd_drawchars (x, y, s, strlen ((char *)s));
 307 #endif
 308 }
 309
 310 /*----------------------------------------------------------------------*/
 311
 312 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 313 {
 314 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 315         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 316 #else
 317         lcd_drawchars (x, y, &c, 1);
 318 #endif
 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 int 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         return (0);
 438 }
 439
 440 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
 441                         char *const argv[])
 442 {
 443         return lcd_clear();
 444 }
 445
 446 U_BOOT_CMD(
 447         cls,    1,      1,      do_lcd_clear,
 448         "clear screen",
 449         ""
 450 );
 451
 452 /*----------------------------------------------------------------------*/
 453
 454 static int lcd_init (void *lcdbase)
 455 {
 456         /* Initialize the lcd controller */
 457         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 458
 459         lcd_ctrl_init (lcdbase);
 460         lcd_is_enabled = 1;
 461         do_lcd_clear (NULL, 1, 1, NULL);        /* dummy args */
 462         lcd_enable ();
 463
 464         /* Initialize the console */
 465         console_col = 0;
 466 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 467         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 468 #else
 469         console_row = 1;        /* leave 1 blank line below logo */
 470 #endif
 471
 472         return 0;
 473 }
 474
 475
 476 /************************************************************************/
 477 /* ** ROM capable initialization part - needed to reserve FB memory     */
 478 /************************************************************************/
 479 /*
 480  * This is called early in the system initialization to grab memory
 481  * for the LCD controller.
 482  * Returns new address for monitor, after reserving LCD buffer memory
 483  *
 484  * Note that this is running from ROM, so no write access to global data.
 485  */
 486 ulong lcd_setmem (ulong addr)
 487 {
 488         ulong size;
 489         int line_length;
 490
 491         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 492                 panel_info.vl_col, panel_info.vl_row, NBITS (panel_info.vl_bpix) );
 493
 494         size = lcd_get_size(&line_length);
 495
 496         /* Round up to nearest full page, or MMU section if defined */
 497 #ifdef CONFIG_ALIGN_LCD_TO_SECTION
 498         size = ALIGN(size, MMU_SECTION_SIZE);
 499         addr = ALIGN(addr- MMU_SECTION_SIZE + 1, MMU_SECTION_SIZE);
 500 #else
 501         size = ALIGN(size, PAGE_SIZE);
 502         addr = ALIGN(addr - PAGE_SIZE + 1, PAGE_SIZE);
 503 #endif
 504
 505         /* Allocate pages for the frame buffer. */
 506         addr -= size;
 507
 508         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 509
 510         return (addr);
 511 }
 512
 513 /*----------------------------------------------------------------------*/
 514
 515 static void lcd_setfgcolor (int color)
 516 {
 517         lcd_color_fg = color;
 518 }
 519
 520 /*----------------------------------------------------------------------*/
 521
 522 static void lcd_setbgcolor (int color)
 523 {
 524         lcd_color_bg = color;
 525 }
 526
 527 /*----------------------------------------------------------------------*/
 528
 529 #ifdef  NOT_USED_SO_FAR
 530 static int lcd_getfgcolor (void)
 531 {
 532         return lcd_color_fg;
 533 }
 534 #endif  /* NOT_USED_SO_FAR */
 535
 536 /*----------------------------------------------------------------------*/
 537
 538 static int lcd_getbgcolor (void)
 539 {
 540         return lcd_color_bg;
 541 }
 542
 543 /*----------------------------------------------------------------------*/
 544
 545 /************************************************************************/
 546 /* ** Chipset depending Bitmap / Logo stuff...                          */
 547 /************************************************************************/
 548 #ifdef CONFIG_LCD_LOGO
 549 void bitmap_plot (int x, int y)
 550 {
 551 #ifdef CONFIG_ATMEL_LCD
 552         uint *cmap;
 553 #else
 554         ushort *cmap;
 555 #endif
 556         ushort i, j;
 557         uchar *bmap;
 558         uchar *fb;
 559         ushort *fb16;
 560 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 561         struct pxafb_info *fbi = &panel_info.pxa;
 562 #elif defined(CONFIG_MPC823)
 563         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 564         volatile cpm8xx_t *cp = &(immr->im_cpm);
 565 #endif
 566
 567         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 568                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 569                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 570
 571         bmap = &bmp_logo_bitmap[0];
 572         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 573
 574         if (NBITS(panel_info.vl_bpix) < 12) {
 575                 /* Leave room for default color map */
 576 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 577                 cmap = (ushort *)fbi->palette;
 578 #elif defined(CONFIG_MPC823)
 579                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 580 #elif defined(CONFIG_ATMEL_LCD)
 581                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 582 #else
 583                 /*
 584                  * default case: generic system with no cmap (most likely 16bpp)
 585                  * We set cmap to the source palette, so no change is done.
 586                  * This avoids even more ifdef in the next stanza
 587                  */
 588                 cmap = bmp_logo_palette;
 589 #endif
 590
 591                 WATCHDOG_RESET();
 592
 593                 /* Set color map */
 594                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 595                         ushort colreg = bmp_logo_palette[i];
 596 #ifdef CONFIG_ATMEL_LCD
 597                         uint lut_entry;
 598 #ifdef CONFIG_ATMEL_LCD_BGR555
 599                         lut_entry = ((colreg & 0x000F) << 11) |
 600                                     ((colreg & 0x00F0) <<  2) |
 601                                     ((colreg & 0x0F00) >>  7);
 602 #else /* CONFIG_ATMEL_LCD_RGB565 */
 603                         lut_entry = ((colreg & 0x000F) << 1) |
 604                                     ((colreg & 0x00F0) << 3) |
 605                                     ((colreg & 0x0F00) << 4);
 606 #endif
 607                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 608                         cmap++;
 609 #else /* !CONFIG_ATMEL_LCD */
 610 #ifdef  CONFIG_SYS_INVERT_COLORS
 611                         *cmap++ = 0xffff - colreg;
 612 #else
 613                         *cmap++ = colreg;
 614 #endif
 615 #endif /* CONFIG_ATMEL_LCD */
 616                 }
 617
 618                 WATCHDOG_RESET();
 619
 620                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 621                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 622                         bmap += BMP_LOGO_WIDTH;
 623                         fb   += panel_info.vl_col;
 624                 }
 625         }
 626         else { /* true color mode */
 627                 u16 col16;
 628                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 629                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 630                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 631                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 632                                 fb16[j] =
 633                                         ((col16 & 0x000F) << 1) |
 634                                         ((col16 & 0x00F0) << 3) |
 635                                         ((col16 & 0x0F00) << 4);
 636                                 }
 637                         bmap += BMP_LOGO_WIDTH;
 638                         fb16 += panel_info.vl_col;
 639                 }
 640         }
 641
 642         WATCHDOG_RESET();
 643         lcd_sync();
 644 }
 645 #endif /* CONFIG_LCD_LOGO */
 646
 647 /*----------------------------------------------------------------------*/
 648 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 649 /*
 650  * Display the BMP file located at address bmp_image.
 651  * Only uncompressed.
 652  */
 653
 654 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 655 #define BMP_ALIGN_CENTER        0x7FFF
 656 #endif
 657
 658 #ifdef CONFIG_LCD_BMP_RLE8
 659
 660 #define BMP_RLE8_ESCAPE         0
 661 #define BMP_RLE8_EOL            0
 662 #define BMP_RLE8_EOBMP          1
 663 #define BMP_RLE8_DELTA          2
 664
 665 static uchar *draw_unencoded_bitmap(uchar *fb, uchar *bmap, ushort *cmap,
 666                                   int cnt)
 667 {
 668         ushort *fb_short = (ushort *)fb;
 669         while (cnt > 0) {
 670                 *fb_short++ = cmap[*bmap++];
 671                 cnt--;
 672         }
 673         return (uchar *)fb_short;
 674 }
 675
 676 static uchar *draw_encoded_bitmap(uchar *fb, ushort c, int cnt)
 677 {
 678         ushort *fb_short = (ushort *)fb;
 679         int cnt_8copy = cnt >> 3;
 680         cnt -= cnt_8copy << 3;
 681         while (cnt_8copy > 0) {
 682                 *fb_short++ = c;
 683                 *fb_short++ = c;
 684                 *fb_short++ = c;
 685                 *fb_short++ = c;
 686                 *fb_short++ = c;
 687                 *fb_short++ = c;
 688                 *fb_short++ = c;
 689                 *fb_short++ = c;
 690                 cnt_8copy--;
 691         }
 692         while (cnt > 0) {
 693                 *fb_short++ = c;
 694                 cnt--;
 695         }
 696         return (uchar *)fb_short;
 697 }
 698
 699 /* Do not call this function directly, must be called from
 700  * lcd_display_bitmap.
 701  */
 702 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
 703                                     int x_off, int y_off)
 704 {
 705         uchar *bmap;
 706         ulong width, height;
 707         ulong cnt, runlen;
 708         int x, y;
 709         int decode = 1;
 710
 711         width = le32_to_cpu(bmp->header.width);
 712         height = le32_to_cpu(bmp->header.height);
 713         bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
 714
 715         x = 0;
 716         y = height - 1;
 717
 718         while (decode) {
 719                 if (bmap[0] == BMP_RLE8_ESCAPE) {
 720                         switch (bmap[1]) {
 721                         case BMP_RLE8_EOL:
 722                                 /* end of line */
 723                                 bmap += 2;
 724                                 x = 0;
 725                                 y--;
 726                                 /* 16bpix, 2-byte per pixel, width should *2 */
 727                                 fb -= (width * 2 + lcd_line_length);
 728                                 break;
 729                         case BMP_RLE8_EOBMP:
 730                                 /* end of bitmap */
 731                                 decode = 0;
 732                                 break;
 733                         case BMP_RLE8_DELTA:
 734                                 /* delta run */
 735                                 x += bmap[2];
 736                                 y -= bmap[3];
 737                                 /* 16bpix, 2-byte per pixel, x should *2 */
 738                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
 739                                         * lcd_line_length + (x + x_off) * 2);
 740                                 bmap += 4;
 741                                 break;
 742                         default:
 743                                 /* unencoded run */
 744                                 runlen = bmap[1];
 745                                 bmap += 2;
 746                                 if (y < height) {
 747                                         if (x < width) {
 748                                                 if (x + runlen > width)
 749                                                         cnt = width - x;
 750                                                 else
 751                                                         cnt = runlen;
 752                                                 fb = draw_unencoded_bitmap(fb,
 753                                                         bmap, cmap, cnt);
 754                                         }
 755                                         x += runlen;
 756                                 }
 757                                 bmap += runlen;
 758                                 if (runlen & 1)
 759                                         bmap++;
 760                         }
 761                 } else {
 762                         /* encoded run */
 763                         if (y < height) {
 764                                 runlen = bmap[0];
 765                                 if (x < width) {
 766                                         /* aggregate the same code */
 767                                         while (bmap[0] == 0xff &&
 768                                                bmap[2] != BMP_RLE8_ESCAPE &&
 769                                                bmap[1] == bmap[3]) {
 770                                                 runlen += bmap[2];
 771                                                 bmap += 2;
 772                                         }
 773                                         if (x + runlen > width)
 774                                                 cnt = width - x;
 775                                         else
 776                                                 cnt = runlen;
 777                                         fb = draw_encoded_bitmap(fb,
 778                                                 cmap[bmap[1]], cnt);
 779                                 }
 780                                 x += runlen;
 781                         }
 782                         bmap += 2;
 783                 }
 784         }
 785 }
 786 #endif /* CONFIG_LCD_BMP_RLE8 */
 787
 788 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 789 {
 790 #if !defined(CONFIG_MCC200)
 791         ushort *cmap = NULL;
 792 #endif
 793         ushort *cmap_base = NULL;
 794         ushort i, j;
 795         uchar *fb;
 796         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 797         uchar *bmap;
 798         ushort padded_width;
 799         unsigned long width, height, byte_width;
 800         unsigned long pwidth = panel_info.vl_col;
 801         unsigned colors, bpix, bmp_bpix;
 802         unsigned long compression;
 803 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 804         struct pxafb_info *fbi = &panel_info.pxa;
 805 #elif defined(CONFIG_MPC823)
 806         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 807         volatile cpm8xx_t *cp = &(immr->im_cpm);
 808 #endif
 809
 810         if (!((bmp->header.signature[0]=='B') &&
 811                 (bmp->header.signature[1]=='M'))) {
 812                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 813                 return 1;
 814         }
 815
 816         width = le32_to_cpu (bmp->header.width);
 817         height = le32_to_cpu (bmp->header.height);
 818         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 819         colors = 1 << bmp_bpix;
 820         compression = le32_to_cpu (bmp->header.compression);
 821
 822         bpix = NBITS(panel_info.vl_bpix);
 823
 824         if ((bpix != 1) && (bpix != 8) && (bpix != 16)) {
 825                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 826                         bpix, bmp_bpix);
 827                 return 1;
 828         }
 829
 830         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 831         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16)) {
 832                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 833                         bpix,
 834                         le16_to_cpu(bmp->header.bit_count));
 835                 return 1;
 836         }
 837
 838         debug ("Display-bmp: %d x %d  with %d colors\n",
 839                 (int)width, (int)height, (int)colors);
 840
 841 #if !defined(CONFIG_MCC200)
 842         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 843         if (bmp_bpix == 8) {
 844 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS
 845                 cmap = (ushort *)fbi->palette;
 846 #elif defined(CONFIG_MPC823)
 847                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 848 #elif !defined(CONFIG_ATMEL_LCD)
 849                 cmap = panel_info.cmap;
 850 #endif
 851
 852                 cmap_base = cmap;
 853
 854                 /* Set color map */
 855                 for (i=0; i<colors; ++i) {
 856                         bmp_color_table_entry_t cte = bmp->color_table[i];
 857 #if !defined(CONFIG_ATMEL_LCD)
 858                         ushort colreg =
 859                                 ( ((cte.red)   << 8) & 0xf800) |
 860                                 ( ((cte.green) << 3) & 0x07e0) |
 861                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 862 #ifdef CONFIG_SYS_INVERT_COLORS
 863                         *cmap = 0xffff - colreg;
 864 #else
 865                         *cmap = colreg;
 866 #endif
 867 #if defined(CONFIG_MPC823)
 868                         cmap--;
 869 #else
 870                         cmap++;
 871 #endif
 872 #else /* CONFIG_ATMEL_LCD */
 873                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 874 #endif
 875                 }
 876         }
 877 #endif
 878
 879         /*
 880          *  BMP format for Monochrome assumes that the state of a
 881          * pixel is described on a per Bit basis, not per Byte.
 882          *  So, in case of Monochrome BMP we should align widths
 883          * on a byte boundary and convert them from Bit to Byte
 884          * units.
 885          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 886          * their own ways, so make the converting to be MCC200
 887          * specific.
 888          */
 889 #if defined(CONFIG_MCC200)
 890         if (bpix==1)
 891         {
 892                 width = ((width + 7) & ~7) >> 3;
 893                 x     = ((x + 7) & ~7) >> 3;
 894                 pwidth= ((pwidth + 7) & ~7) >> 3;
 895         }
 896 #endif
 897
 898         padded_width = (width&0x3) ? ((width&~0x3)+4) : (width);
 899
 900 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 901         if (x == BMP_ALIGN_CENTER)
 902                 x = max(0, (pwidth - width) / 2);
 903         else if (x < 0)
 904                 x = max(0, pwidth - width + x + 1);
 905
 906         if (y == BMP_ALIGN_CENTER)
 907                 y = max(0, (panel_info.vl_row - height) / 2);
 908         else if (y < 0)
 909                 y = max(0, panel_info.vl_row - height + y + 1);
 910 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 911
 912         if ((x + width)>pwidth)
 913                 width = pwidth - x;
 914         if ((y + height)>panel_info.vl_row)
 915                 height = panel_info.vl_row - y;
 916
 917         bmap = (uchar *)bmp + le32_to_cpu(bmp->header.data_offset);
 918         fb   = (uchar *) (lcd_base + (y + height - 1) * lcd_line_length + x);
 919         /* additional fb shift for bpix == 16 since each pixel is 2-byte */
 920         if (bpix == 16)
 921                 fb += x;
 922
 923         switch (bmp_bpix) {
 924         case 1: /* pass through */
 925         case 8:
 926 #ifdef CONFIG_LCD_BMP_RLE8
 927                 if (compression == BMP_BI_RLE8) {
 928                         if (bpix != 16) {
 929                                 /* TODO implement render code for bpix != 16 */
 930                                 printf("Error: only support 16 bpix");
 931                                 return 1;
 932                         }
 933                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
 934                         break;
 935                 }
 936 #endif
 937
 938                 if (bpix != 16)
 939                         byte_width = width;
 940                 else
 941                         byte_width = width * 2;
 942
 943                 for (i = 0; i < height; ++i) {
 944                         WATCHDOG_RESET();
 945                         for (j = 0; j < width; j++) {
 946                                 if (bpix != 16) {
 947 #if defined CONFIG_PXA250 || defined CONFIG_PXA27X || defined CONFIG_CPU_MONAHANS || defined(CONFIG_ATMEL_LCD)
 948                                         *(fb++) = *(bmap++);
 949 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 950                                         *(fb++) = 255 - *(bmap++);
 951 #endif
 952                                 } else {
 953                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 954                                         fb += sizeof(uint16_t) / sizeof(*fb);
 955                                 }
 956                         }
 957                         bmap += (padded_width - width);
 958                         fb   -= (byte_width + lcd_line_length);
 959                 }
 960                 break;
 961
 962 #if defined(CONFIG_BMP_16BPP)
 963         case 16:
 964                 for (i = 0; i < height; ++i) {
 965                         WATCHDOG_RESET();
 966                         for (j = 0; j < width; j++) {
 967 #if defined(CONFIG_ATMEL_LCD_BGR555)
 968                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 969                                         (bmap[1] & 0x03);
 970                                 *(fb++) = (bmap[0] & 0xe0) |
 971                                         ((bmap[1] & 0x7c) >> 2);
 972                                 bmap += 2;
 973 #else
 974                                 *(fb++) = *(bmap++);
 975                                 *(fb++) = *(bmap++);
 976 #endif
 977                         }
 978                         bmap += (padded_width - width) * 2;
 979                         fb   -= (width * 2 + lcd_line_length);
 980                 }
 981                 break;
 982 #endif /* CONFIG_BMP_16BPP */
 983
 984         default:
 985                 break;
 986         };
 987
 988         lcd_sync();
 989         return (0);
 990 }
 991
 992 #endif
 993
 994 static void *lcd_logo (void)
 995 {
 996 #ifdef CONFIG_SPLASH_SCREEN
 997         char *s;
 998         ulong addr;
 999         static int do_splash = 1;
1000
1001         if (do_splash && (s = getenv("splashimage")) != NULL) {
1002                 int x = 0, y = 0;
1003                 do_splash = 0;
1004
1005                 addr = simple_strtoul (s, NULL, 16);
1006 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1007                 if ((s = getenv ("splashpos")) != NULL) {
1008                         if (s[0] == 'm')
1009                                 x = BMP_ALIGN_CENTER;
1010                         else
1011                                 x = simple_strtol (s, NULL, 0);
1012
1013                         if ((s = strchr (s + 1, ',')) != NULL) {
1014                                 if (s[1] == 'm')
1015                                         y = BMP_ALIGN_CENTER;
1016                                 else
1017                                         y = simple_strtol (s + 1, NULL, 0);
1018                         }
1019                 }
1020 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1021
1022 #ifdef CONFIG_VIDEO_BMP_GZIP
1023                 bmp_image_t *bmp = (bmp_image_t *)addr;
1024                 unsigned long len;
1025
1026                 if (!((bmp->header.signature[0]=='B') &&
1027                       (bmp->header.signature[1]=='M'))) {
1028                         addr = (ulong)gunzip_bmp(addr, &len);
1029                 }
1030 #endif
1031
1032                 if (lcd_display_bitmap (addr, x, y) == 0) {
1033                         return ((void *)lcd_base);
1034                 }
1035         }
1036 #endif /* CONFIG_SPLASH_SCREEN */
1037
1038 #ifdef CONFIG_LCD_LOGO
1039         bitmap_plot (0, 0);
1040 #endif /* CONFIG_LCD_LOGO */
1041
1042 #ifdef CONFIG_LCD_INFO
1043         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1044         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1045         lcd_show_board_info();
1046 #endif /* CONFIG_LCD_INFO */
1047
1048 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1049         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
1050 #else
1051         return ((void *)lcd_base);
1052 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
1053 }
1054
1055 /*---------------- functions required by vboot wrapper -----------------*/
1056 void lcd_position_cursor (unsigned col, unsigned row)
1057 {
1058         console_col = min(col, CONSOLE_COLS - 1);
1059         console_row = min(row, CONSOLE_ROWS - 1);
1060 }
1061
1062 int lcd_get_pixel_width (void)
1063 {
1064         return panel_info.vl_col;
1065 }
1066
1067 int lcd_get_pixel_height (void)
1068 {
1069         return panel_info.vl_row;
1070 }
1071
1072 int lcd_get_screen_rows (void)
1073 {
1074         return CONSOLE_ROWS;
1075 }
1076
1077 int lcd_get_screen_columns (void)
1078 {
1079         return CONSOLE_COLS;
1080 }
1081
1082 /************************************************************************/
1083 /************************************************************************/