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 <malloc.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)
  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)
  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
  82 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]);
  83 static void *lcd_logo (void);
  84
  85 static int lcd_getbgcolor (void);
  86 static void lcd_setfgcolor (int color);
  87 static void lcd_setbgcolor (int color);
  88
  89 char lcd_is_enabled = 0;
  90
  91 #ifdef  NOT_USED_SO_FAR
  92 static void lcd_getcolreg (ushort regno,
  93                                 ushort *red, ushort *green, ushort *blue);
  94 static int lcd_getfgcolor (void);
  95 #endif  /* NOT_USED_SO_FAR */
  96
  97 /************************************************************************/
  98
  99 /*----------------------------------------------------------------------*/
 100
 101 static void console_scrollup (void)
 102 {
 103         /* Copy up rows ignoring the first one */
 104         memcpy (CONSOLE_ROW_FIRST, CONSOLE_ROW_SECOND, CONSOLE_SCROLL_SIZE);
 105
 106         /* Clear the last one */
 107         memset (CONSOLE_ROW_LAST, COLOR_MASK(lcd_color_bg), CONSOLE_ROW_SIZE);
 108 }
 109
 110 /*----------------------------------------------------------------------*/
 111
 112 static inline void console_back (void)
 113 {
 114         if (--console_col < 0) {
 115                 console_col = CONSOLE_COLS-1 ;
 116                 if (--console_row < 0) {
 117                         console_row = 0;
 118                 }
 119         }
 120
 121         lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 122                      console_row * VIDEO_FONT_HEIGHT,
 123                      ' ');
 124 }
 125
 126 /*----------------------------------------------------------------------*/
 127
 128 static inline void console_newline (void)
 129 {
 130         ++console_row;
 131         console_col = 0;
 132
 133         /* Check if we need to scroll the terminal */
 134         if (console_row >= CONSOLE_ROWS) {
 135                 /* Scroll everything up */
 136                 console_scrollup () ;
 137                 --console_row;
 138         }
 139 }
 140
 141 /*----------------------------------------------------------------------*/
 142
 143 void lcd_putc (const char c)
 144 {
 145         if (!lcd_is_enabled) {
 146                 serial_putc(c);
 147                 return;
 148         }
 149
 150         switch (c) {
 151         case '\r':      console_col = 0;
 152                         return;
 153
 154         case '\n':      console_newline();
 155                         return;
 156
 157         case '\t':      /* Tab (8 chars alignment) */
 158                         console_col +=  8;
 159                         console_col &= ~7;
 160
 161                         if (console_col >= CONSOLE_COLS) {
 162                                 console_newline();
 163                         }
 164                         return;
 165
 166         case '\b':      console_back();
 167                         return;
 168
 169         default:        lcd_putc_xy (console_col * VIDEO_FONT_WIDTH,
 170                                      console_row * VIDEO_FONT_HEIGHT,
 171                                      c);
 172                         if (++console_col >= CONSOLE_COLS) {
 173                                 console_newline();
 174                         }
 175                         return;
 176         }
 177         /* NOTREACHED */
 178 }
 179
 180 /*----------------------------------------------------------------------*/
 181
 182 void lcd_puts (const char *s)
 183 {
 184         if (!lcd_is_enabled) {
 185                 serial_puts (s);
 186                 return;
 187         }
 188
 189         while (*s) {
 190                 lcd_putc (*s++);
 191         }
 192 }
 193
 194 /*----------------------------------------------------------------------*/
 195
 196 void lcd_printf(const char *fmt, ...)
 197 {
 198         va_list args;
 199         char buf[CONFIG_SYS_PBSIZE];
 200
 201         va_start(args, fmt);
 202         vsprintf(buf, fmt, args);
 203         va_end(args);
 204
 205         lcd_puts(buf);
 206 }
 207
 208 /************************************************************************/
 209 /* ** Low-Level Graphics Routines                                       */
 210 /************************************************************************/
 211
 212 static void lcd_drawchars (ushort x, ushort y, uchar *str, int count)
 213 {
 214         uchar *dest;
 215         ushort off, row;
 216
 217         dest = (uchar *)(lcd_base + y * lcd_line_length + x * (1 << LCD_BPP) / 8);
 218         off  = x * (1 << LCD_BPP) % 8;
 219
 220         for (row=0;  row < VIDEO_FONT_HEIGHT;  ++row, dest += lcd_line_length)  {
 221                 uchar *s = str;
 222                 uchar *d = dest;
 223                 int i;
 224
 225 #if LCD_BPP == LCD_MONOCHROME
 226                 uchar rest = *d & -(1 << (8-off));
 227                 uchar sym;
 228 #endif
 229                 for (i=0; i<count; ++i) {
 230                         uchar c, bits;
 231
 232                         c = *s++;
 233                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 234
 235 #if LCD_BPP == LCD_MONOCHROME
 236                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 237                                (COLOR_MASK(lcd_color_bg) & ~bits);
 238
 239                         *d++ = rest | (sym >> off);
 240                         rest = sym << (8-off);
 241 #elif LCD_BPP == LCD_COLOR8
 242                         for (c=0; c<8; ++c) {
 243                                 *d++ = (bits & 0x80) ?
 244                                                 lcd_color_fg : lcd_color_bg;
 245                                 bits <<= 1;
 246                         }
 247 #elif LCD_BPP == LCD_COLOR16
 248                         for (c=0; c<16; ++c) {
 249                                 *d++ = (bits & 0x80) ?
 250                                                 lcd_color_fg : lcd_color_bg;
 251                                 bits <<= 1;
 252                         }
 253 #endif
 254                 }
 255 #if LCD_BPP == LCD_MONOCHROME
 256                 *d  = rest | (*d & ((1 << (8-off)) - 1));
 257 #endif
 258         }
 259 }
 260
 261 /*----------------------------------------------------------------------*/
 262
 263 static inline void lcd_puts_xy (ushort x, ushort y, uchar *s)
 264 {
 265 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 266         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, s, strlen ((char *)s));
 267 #else
 268         lcd_drawchars (x, y, s, strlen ((char *)s));
 269 #endif
 270 }
 271
 272 /*----------------------------------------------------------------------*/
 273
 274 static inline void lcd_putc_xy (ushort x, ushort y, uchar c)
 275 {
 276 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 277         lcd_drawchars (x, y+BMP_LOGO_HEIGHT, &c, 1);
 278 #else
 279         lcd_drawchars (x, y, &c, 1);
 280 #endif
 281 }
 282
 283 /************************************************************************/
 284 /**  Small utility to check that you got the colours right              */
 285 /************************************************************************/
 286 #ifdef LCD_TEST_PATTERN
 287
 288 #define N_BLK_VERT      2
 289 #define N_BLK_HOR       3
 290
 291 static int test_colors[N_BLK_HOR*N_BLK_VERT] = {
 292         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 293         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 294 };
 295
 296 static void test_pattern (void)
 297 {
 298         ushort v_max  = panel_info.vl_row;
 299         ushort h_max  = panel_info.vl_col;
 300         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 301         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 302         ushort v, h;
 303         uchar *pix = (uchar *)lcd_base;
 304
 305         printf ("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 306                 h_max, v_max, h_step, v_step);
 307
 308         /* WARNING: Code silently assumes 8bit/pixel */
 309         for (v=0; v<v_max; ++v) {
 310                 uchar iy = v / v_step;
 311                 for (h=0; h<h_max; ++h) {
 312                         uchar ix = N_BLK_HOR * iy + (h/h_step);
 313                         *pix++ = test_colors[ix];
 314                 }
 315         }
 316 }
 317 #endif /* LCD_TEST_PATTERN */
 318
 319
 320 /************************************************************************/
 321 /* ** GENERIC Initialization Routines                                   */
 322 /************************************************************************/
 323 int drv_lcd_init_resume (void)
 324 {
 325         lcd_base = (void *)(gd->fb_base);
 326
 327         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 328
 329         lcd_init (lcd_base);            /* LCD initialization */
 330
 331         return 0;
 332 }
 333
 334 int drv_lcd_init (void)
 335 {
 336         struct stdio_dev lcddev;
 337         int rc;
 338
 339         lcd_base = (void *)(gd->fb_base);
 340
 341         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 342
 343         lcd_init (lcd_base);            /* LCD initialization */
 344
 345         /* Device initialization */
 346         memset (&lcddev, 0, sizeof (lcddev));
 347
 348         strcpy (lcddev.name, "lcd");
 349         lcddev.ext   = 0;                       /* No extensions */
 350         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 351         lcddev.putc  = lcd_putc;                /* 'putc' function */
 352         lcddev.puts  = lcd_puts;                /* 'puts' function */
 353
 354         rc = stdio_register (&lcddev);
 355
 356         return (rc == 0) ? 1 : rc;
 357 }
 358
 359 /*----------------------------------------------------------------------*/
 360 static int lcd_clear (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
 361 {
 362 #if LCD_BPP == LCD_MONOCHROME
 363         /* Setting the palette */
 364         lcd_initcolregs();
 365
 366 #elif LCD_BPP == LCD_COLOR8
 367         /* Setting the palette */
 368         lcd_setcolreg  (CONSOLE_COLOR_BLACK,       0,    0,    0);
 369         lcd_setcolreg  (CONSOLE_COLOR_RED,      0xFF,    0,    0);
 370         lcd_setcolreg  (CONSOLE_COLOR_GREEN,       0, 0xFF,    0);
 371         lcd_setcolreg  (CONSOLE_COLOR_YELLOW,   0xFF, 0xFF,    0);
 372         lcd_setcolreg  (CONSOLE_COLOR_BLUE,        0,    0, 0xFF);
 373         lcd_setcolreg  (CONSOLE_COLOR_MAGENTA,  0xFF,    0, 0xFF);
 374         lcd_setcolreg  (CONSOLE_COLOR_CYAN,        0, 0xFF, 0xFF);
 375         lcd_setcolreg  (CONSOLE_COLOR_GREY,     0xAA, 0xAA, 0xAA);
 376         lcd_setcolreg  (CONSOLE_COLOR_WHITE,    0xFF, 0xFF, 0xFF);
 377 #endif
 378
 379 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 380         lcd_setfgcolor (CONSOLE_COLOR_BLACK);
 381         lcd_setbgcolor (CONSOLE_COLOR_WHITE);
 382 #else
 383         lcd_setfgcolor (CONSOLE_COLOR_WHITE);
 384         lcd_setbgcolor (CONSOLE_COLOR_BLACK);
 385 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 386
 387 #ifdef  LCD_TEST_PATTERN
 388         test_pattern();
 389 #else
 390         /* set framebuffer to background color */
 391         memset ((char *)lcd_base,
 392                 COLOR_MASK(lcd_getbgcolor()),
 393                 lcd_line_length*panel_info.vl_row);
 394 #endif
 395         /* Paint the logo and retrieve LCD base address */
 396         debug ("[LCD] Drawing the logo...\n");
 397         lcd_console_address = lcd_logo ();
 398
 399         console_col = 0;
 400         console_row = 0;
 401
 402         return (0);
 403 }
 404
 405 U_BOOT_CMD(
 406         cls,    1,      1,      lcd_clear,
 407         "clear screen",
 408         ""
 409 );
 410
 411 /*----------------------------------------------------------------------*/
 412
 413 static int lcd_init (void *lcdbase)
 414 {
 415         /* Initialize the lcd controller */
 416         debug ("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 417
 418         lcd_ctrl_init (lcdbase);
 419         lcd_is_enabled = 1;
 420         lcd_clear (NULL, 1, 1, NULL);   /* dummy args */
 421         lcd_enable ();
 422
 423         /* Initialize the console */
 424         console_col = 0;
 425 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 426         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 427 #else
 428         console_row = 1;        /* leave 1 blank line below logo */
 429 #endif
 430
 431         return 0;
 432 }
 433
 434
 435 /************************************************************************/
 436 /* ** ROM capable initialization part - needed to reserve FB memory     */
 437 /************************************************************************/
 438 /*
 439  * This is called early in the system initialization to grab memory
 440  * for the LCD controller.
 441  * Returns new address for monitor, after reserving LCD buffer memory
 442  *
 443  * Note that this is running from ROM, so no write access to global data.
 444  */
 445 ulong lcd_setmem (ulong addr)
 446 {
 447         ulong size;
 448         int line_length = (panel_info.vl_col * (panel_info.vl_bpix)) / 8;
 449
 450         debug ("LCD panel info: %d x %d, %d bit/pix\n",
 451                 panel_info.vl_col, panel_info.vl_row, (panel_info.vl_bpix) );
 452
 453         size = line_length * panel_info.vl_row;
 454
 455         /* Round up to nearest full page */
 456         size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
 457
 458         /* Allocate pages for the frame buffer. */
 459         addr -= size;
 460
 461         debug ("Reserving %ldk for LCD Framebuffer at: %08lx\n", size>>10, addr);
 462
 463         return (addr);
 464 }
 465
 466 /*----------------------------------------------------------------------*/
 467
 468 static void lcd_setfgcolor (int color)
 469 {
 470 #ifdef CONFIG_ATMEL_LCD
 471         lcd_color_fg = color;
 472 #else
 473         lcd_color_fg = color & 0x0F;
 474 #endif
 475 }
 476
 477 /*----------------------------------------------------------------------*/
 478
 479 static void lcd_setbgcolor (int color)
 480 {
 481 #ifdef CONFIG_ATMEL_LCD
 482         lcd_color_bg = color;
 483 #else
 484         lcd_color_bg = color & 0x0F;
 485 #endif
 486 }
 487
 488 /*----------------------------------------------------------------------*/
 489
 490 #ifdef  NOT_USED_SO_FAR
 491 static int lcd_getfgcolor (void)
 492 {
 493         return lcd_color_fg;
 494 }
 495 #endif  /* NOT_USED_SO_FAR */
 496
 497 /*----------------------------------------------------------------------*/
 498
 499 static int lcd_getbgcolor (void)
 500 {
 501         return lcd_color_bg;
 502 }
 503
 504 /*----------------------------------------------------------------------*/
 505
 506 /************************************************************************/
 507 /* ** Chipset depending Bitmap / Logo stuff...                          */
 508 /************************************************************************/
 509 #ifdef CONFIG_LCD_LOGO
 510 void bitmap_plot (int x, int y)
 511 {
 512 #ifdef CONFIG_ATMEL_LCD
 513         uint *cmap;
 514 #else
 515         ushort *cmap;
 516 #endif
 517         ushort i, j;
 518         uchar *bmap;
 519         uchar *fb;
 520         ushort *fb16;
 521 #if defined(CONFIG_PXA250)
 522         struct pxafb_info *fbi = &panel_info.pxa;
 523 #elif defined(CONFIG_MPC823)
 524         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 525         volatile cpm8xx_t *cp = &(immr->im_cpm);
 526 #endif
 527
 528         debug ("Logo: width %d  height %d  colors %d  cmap %d\n",
 529                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 530                 (int)(sizeof(bmp_logo_palette)/(sizeof(ushort))));
 531
 532         bmap = &bmp_logo_bitmap[0];
 533         fb   = (uchar *)(lcd_base + y * lcd_line_length + x);
 534
 535         if ((panel_info.vl_bpix) < 12) {
 536                 /* Leave room for default color map */
 537 #if defined(CONFIG_PXA250)
 538                 cmap = (ushort *)fbi->palette;
 539 #elif defined(CONFIG_MPC823)
 540                 cmap = (ushort *)&(cp->lcd_cmap[BMP_LOGO_OFFSET*sizeof(ushort)]);
 541 #elif defined(CONFIG_ATMEL_LCD)
 542                 cmap = (uint *) (panel_info.mmio + ATMEL_LCDC_LUT(0));
 543 #endif
 544
 545                 WATCHDOG_RESET();
 546
 547                 /* Set color map */
 548                 for (i=0; i<(sizeof(bmp_logo_palette)/(sizeof(ushort))); ++i) {
 549                         ushort colreg = bmp_logo_palette[i];
 550 #ifdef CONFIG_ATMEL_LCD
 551                         uint lut_entry;
 552 #ifdef CONFIG_ATMEL_LCD_BGR555
 553                         lut_entry = ((colreg & 0x000F) << 11) |
 554                                     ((colreg & 0x00F0) <<  2) |
 555                                     ((colreg & 0x0F00) >>  7);
 556 #else /* CONFIG_ATMEL_LCD_RGB565 */
 557                         lut_entry = ((colreg & 0x000F) << 1) |
 558                                     ((colreg & 0x00F0) << 3) |
 559                                     ((colreg & 0x0F00) << 4);
 560 #endif
 561                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 562                         cmap++;
 563 #else /* !CONFIG_ATMEL_LCD */
 564 #ifdef  CONFIG_SYS_INVERT_COLORS
 565                         *cmap++ = 0xffff - colreg;
 566 #else
 567                         *cmap++ = colreg;
 568 #endif
 569 #endif /* CONFIG_ATMEL_LCD */
 570                 }
 571
 572                 WATCHDOG_RESET();
 573
 574                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 575                         memcpy (fb, bmap, BMP_LOGO_WIDTH);
 576                         bmap += BMP_LOGO_WIDTH;
 577                         fb   += panel_info.vl_col;
 578                 }
 579         }
 580         else { /* true color mode */
 581                 fb16 = (ushort *)(lcd_base + y * lcd_line_length + x);
 582                 for (i=0; i<BMP_LOGO_HEIGHT; ++i) {
 583                         for (j=0; j<BMP_LOGO_WIDTH; j++) {
 584                                 fb16[j] = bmp_logo_palette[(bmap[j])];
 585                                 }
 586                         bmap += BMP_LOGO_WIDTH;
 587                         fb16 += panel_info.vl_col;
 588                 }
 589         }
 590
 591         WATCHDOG_RESET();
 592 }
 593 #endif /* CONFIG_LCD_LOGO */
 594
 595 /*----------------------------------------------------------------------*/
 596 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 597 /*
 598  * Display the BMP file located at address bmp_image.
 599  * Only uncompressed.
 600  */
 601
 602 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 603 #define BMP_ALIGN_CENTER        0x7FFF
 604 #endif
 605 void lcd_display_clear(void)
 606 {
 607         unsigned int *fb = lcd_base;
 608         printf("Clean the display\n");
 609
 610         memset(fb, 0, panel_info.vl_row * panel_info.vl_col * panel_info.vl_bpix / 8);
 611 }
 612
 613 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 614 {
 615 #if !defined(CONFIG_MCC200)
 616         ushort *cmap = NULL;
 617 #endif
 618         ushort *cmap_base = NULL;
 619         ushort i, j;
 620         uchar *fb;
 621         bmp_image_t *bmp=(bmp_image_t *)bmp_image;
 622         uchar *bmap;
 623         ushort padded_line;
 624         unsigned long width, height, byte_width;
 625         unsigned long pwidth = panel_info.vl_col;
 626         unsigned colors, bpix, bmp_bpix;
 627         unsigned long compression;
 628 #if defined(CONFIG_PXA250)
 629         struct pxafb_info *fbi = &panel_info.pxa;
 630 #elif defined(CONFIG_MPC823)
 631         volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 632         volatile cpm8xx_t *cp = &(immr->im_cpm);
 633 #endif
 634
 635         if (!((bmp->header.signature[0]=='B') &&
 636                 (bmp->header.signature[1]=='M'))) {
 637                 printf ("Error: no valid bmp image at %lx\n", bmp_image);
 638                 return 1;
 639         }
 640
 641         width = le32_to_cpu (bmp->header.width);
 642         height = le32_to_cpu (bmp->header.height);
 643         bmp_bpix = le16_to_cpu(bmp->header.bit_count);
 644         colors = 1 << bmp_bpix;
 645         compression = le32_to_cpu (bmp->header.compression);
 646
 647         bpix = (panel_info.vl_bpix);
 648
 649         if ((bpix != 1) && (bpix != 8) && (bpix != 16) && (bpix != 32)) {
 650                 printf ("Error0: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 651                         bpix, bmp_bpix);
 652                 return 1;
 653         }
 654
 655         /* We support displaying 8bpp BMPs on 16bpp LCDs and 4bpp BMPs on 32bpp LCDs */
 656         if (bpix != bmp_bpix && (bmp_bpix != 8 || bpix != 16) && !(bpix == 32 && bmp_bpix == 4) ) {
 657                 printf ("Error1: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 658                         bpix,
 659                         le16_to_cpu(bmp->header.bit_count));
 660                 return 1;
 661         }
 662
 663         debug ("Display-bmp: %d x %d  with %d colors\n",
 664                 (int)width, (int)height, (int)colors);
 665
 666 #if !defined(CONFIG_MCC200)
 667         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 668         if (bmp_bpix == 8) {
 669 #if defined(CONFIG_PXA250)
 670                 cmap = (ushort *)fbi->palette;
 671 #elif defined(CONFIG_MPC823)
 672                 cmap = (ushort *)&(cp->lcd_cmap[255*sizeof(ushort)]);
 673 #elif !defined(CONFIG_ATMEL_LCD)
 674                 /* cmap = panel_info.cmap; */
 675                 cmap = (ushort *) malloc(1024);
 676 #endif
 677
 678                 cmap_base = cmap;
 679
 680                 /* Set color map */
 681                 for (i=0; i<colors; ++i) {
 682                         bmp_color_table_entry_t cte = bmp->color_table[i];
 683 #if !defined(CONFIG_ATMEL_LCD)
 684                         ushort colreg =
 685                                 ( ((cte.red)   << 8) & 0xf800) |
 686                                 ( ((cte.green) << 3) & 0x07e0) |
 687                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 688 #ifdef CONFIG_SYS_INVERT_COLORS
 689                         *cmap = 0xffff - colreg;
 690 #else
 691                         *cmap = colreg;
 692 #endif
 693 #if defined(CONFIG_MPC823)
 694                         cmap--;
 695 #else
 696                         cmap++;
 697 #endif
 698 #else /* CONFIG_ATMEL_LCD */
 699                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 700 #endif
 701                 }
 702         }
 703 #endif
 704
 705         /*
 706          *  BMP format for Monochrome assumes that the state of a
 707          * pixel is described on a per Bit basis, not per Byte.
 708          *  So, in case of Monochrome BMP we should align widths
 709          * on a byte boundary and convert them from Bit to Byte
 710          * units.
 711          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
 712          * their own ways, so make the converting to be MCC200
 713          * specific.
 714          */
 715 #if defined(CONFIG_MCC200)
 716         if (bpix==1)
 717         {
 718                 width = ((width + 7) & ~7) >> 3;
 719                 x     = ((x + 7) & ~7) >> 3;
 720                 pwidth= ((pwidth + 7) & ~7) >> 3;
 721         }
 722 #endif
 723
 724         padded_line = (width&0x3) ? ((width&~0x3)+4) : (width);
 725
 726 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 727         if (x == BMP_ALIGN_CENTER)
 728                 x = max(0, (pwidth - width) / 2);
 729         else if (x < 0)
 730                 x = max(0, pwidth - width + x + 1);
 731
 732         if (y == BMP_ALIGN_CENTER)
 733                 y = max(0, (panel_info.vl_row - height) / 2);
 734         else if (y < 0)
 735                 y = max(0, panel_info.vl_row - height + y + 1);
 736 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 737
 738         if ((x + width)>pwidth)
 739                 width = pwidth - x;
 740         if ((y + height)>panel_info.vl_row)
 741                 height = panel_info.vl_row - y;
 742
 743         bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
 744         fb   = (uchar *) (lcd_base +
 745                 (y + height - 1) * lcd_line_length + x);
 746
 747         switch (bmp_bpix) {
 748         case 4: /* Display 4b bmp at 32b lcd */
 749                 if (bpix == 32) {
 750                         /* 1. Get the color map */
 751                         unsigned int cmap_32[16];
 752                         unsigned int effective_width;
 753
 754                         for (i=0; i<colors; ++i) {
 755                                 bmp_color_table_entry_t cte = bmp->color_table[i];
 756                                 cmap_32[i] = (cte.red << 0) | (cte.green << 8) |
 757                                         (cte.blue << 16) | (cte.reserved << 24);
 758                         }
 759
 760                         /* 2. Put'em on the screen */
 761                         lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 762                         fb = (uchar *) lcd_base;
 763                         fb += lcd_line_length * (y + height) + x * 4;
 764
 765                         printf("Drawing the 32bit bmp.. @ 4b (%d,%d) of [%ldx%ld] in %d (%d color)\n",
 766                                         x, y, width, height, lcd_line_length, colors);
 767                         effective_width = (width % 2) ? (width + 1) : width;
 768                         for (i = 0; i < height; ++i) {
 769                                 WATCHDOG_RESET();
 770                                 for (j = 0; j < width; j++) {
 771                                         int color_v;
 772                                         color_v = bmap[(j + i * effective_width) / 2];
 773                                         if ((j + i * effective_width) % 2)
 774                                                 color_v = color_v & 0xf;
 775                                         else
 776                                                 color_v = (color_v >> 4) & 0xf;
 777
 778                                         memcpy(fb, cmap_32 + color_v, 4);
 779                                         fb += 4;
 780                                 }
 781                                 fb   -= (lcd_line_length + width * 4);
 782                         }
 783                 }
 784                 break;
 785         case 1: /* pass through */
 786         case 8:
 787                 if (bpix != 16)
 788                         byte_width = width;
 789                 else
 790                         byte_width = width * 2;
 791
 792                 for (i = 0; i < height; ++i) {
 793                         WATCHDOG_RESET();
 794                         for (j = 0; j < width; j++) {
 795                                 if (bpix != 16) {
 796 #if defined(CONFIG_PXA250) || defined(CONFIG_ATMEL_LCD)
 797                                         *(fb++) = *(bmap++);
 798 #elif defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 799                                         *(fb++) = 255 - *(bmap++);
 800 #endif
 801                                 } else {
 802                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
 803                                         fb += sizeof(uint16_t) / sizeof(*fb);
 804                                 }
 805                         }
 806                         bmap += (width - padded_line);
 807                         fb   -= (byte_width + lcd_line_length);
 808                 }
 809                 break;
 810
 811 #if defined(CONFIG_BMP_16BPP)
 812         case 16:
 813                 for (i = 0; i < height; ++i) {
 814                         WATCHDOG_RESET();
 815                         for (j = 0; j < width; j++) {
 816 #if defined(CONFIG_ATMEL_LCD_BGR555)
 817                                 *(fb++) = ((bmap[0] & 0x1f) << 2) |
 818                                         (bmap[1] & 0x03);
 819                                 *(fb++) = (bmap[0] & 0xe0) |
 820                                         ((bmap[1] & 0x7c) >> 2);
 821                                 bmap += 2;
 822 #else
 823                                 *(fb++) = *(bmap++);
 824                                 *(fb++) = *(bmap++);
 825 #endif
 826                         }
 827                         bmap += (padded_line - width) * 2;
 828                         fb   -= (width * 2 + lcd_line_length);
 829                 }
 830                 break;
 831 #endif /* CONFIG_BMP_16BPP */
 832         case 32:
 833                 lcd_line_length = (panel_info.vl_col * (panel_info.vl_bpix / 8));
 834                 fb = (uchar *) lcd_base;
 835                 fb += lcd_line_length * (y + height) + x * 4;
 836
 837                 printf("Drawing the 32bit bmp.. @ (%d,%d) of [%ldx%ld] in %d\n",
 838                                 x, y, width, height, lcd_line_length);
 839                 for (i = 0; i < height; ++i) {
 840                         WATCHDOG_RESET();
 841                         for (j = 0; j < width; j++) {
 842                                 *(fb++) = *(bmap++);
 843                                 *(fb++) = *(bmap++);
 844                                 *(fb++) = *(bmap++);
 845                                 *(fb++) = *(bmap++);
 846                         }
 847                         //bmap += (padded_line - width) * 4;
 848                         fb   -= (lcd_line_length + width * 4);
 849                 }
 850                 break;
 851
 852         default:
 853                 break;
 854         };
 855
 856         return (0);
 857 }
 858 #endif
 859
 860 static void *lcd_logo (void)
 861 {
 862 #ifdef CONFIG_SPLASH_SCREEN
 863         char *s;
 864         ulong addr;
 865         static int do_splash = 1;
 866
 867         if (do_splash && (s = getenv("splashimage")) != NULL) {
 868                 int x = 0, y = 0;
 869                 do_splash = 0;
 870
 871                 addr = simple_strtoul (s, NULL, 16);
 872 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 873                 if ((s = getenv ("splashpos")) != NULL) {
 874                         if (s[0] == 'm')
 875                                 x = BMP_ALIGN_CENTER;
 876                         else
 877                                 x = simple_strtol (s, NULL, 0);
 878
 879                         if ((s = strchr (s + 1, ',')) != NULL) {
 880                                 if (s[1] == 'm')
 881                                         y = BMP_ALIGN_CENTER;
 882                                 else
 883                                         y = simple_strtol (s + 1, NULL, 0);
 884                         }
 885                 }
 886 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 887
 888 #ifdef CONFIG_VIDEO_BMP_GZIP
 889                 bmp_image_t *bmp = (bmp_image_t *)addr;
 890                 unsigned long len;
 891
 892                 if (!((bmp->header.signature[0]=='B') &&
 893                       (bmp->header.signature[1]=='M'))) {
 894                         addr = (ulong)gunzip_bmp(addr, &len);
 895                 }
 896 #endif
 897
 898                 if (lcd_display_bitmap (addr, x, y) == 0) {
 899                         return ((void *)lcd_base);
 900                 }
 901         }
 902 #endif /* CONFIG_SPLASH_SCREEN */
 903
 904 #ifdef CONFIG_LCD_LOGO
 905         bitmap_plot (0, 0);
 906 #endif /* CONFIG_LCD_LOGO */
 907
 908 #ifdef CONFIG_LCD_INFO
 909         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
 910         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
 911         lcd_show_board_info();
 912 #endif /* CONFIG_LCD_INFO */
 913
 914 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 915         return ((void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length));
 916 #else
 917         return ((void *)lcd_base);
 918 #endif /* CONFIG_LCD_LOGO && !CONFIG_LCD_INFO_BELOW_LOGO */
 919 }
 920
 921 /************************************************************************/
 922 /************************************************************************/