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  * SPDX-License-Identifier:     GPL-2.0+
   8  */
   9
  10 /************************************************************************/
  11 /* ** HEADER FILES                                                      */
  12 /************************************************************************/
  13
  14 /* #define DEBUG */
  15
  16 #include <config.h>
  17 #include <common.h>
  18 #include <command.h>
  19 #include <stdarg.h>
  20 #include <search.h>
  21 #include <env_callback.h>
  22 #include <linux/types.h>
  23 #include <stdio_dev.h>
  24 #if defined(CONFIG_POST)
  25 #include <post.h>
  26 #endif
  27 #include <lcd.h>
  28 #include <watchdog.h>
  29 #include <asm/unaligned.h>
  30 #include <splash.h>
  31 #include <asm/io.h>
  32 #include <asm/unaligned.h>
  33
  34 #if defined(CONFIG_CPU_PXA25X) || defined(CONFIG_CPU_PXA27X) || \
  35         defined(CONFIG_CPU_MONAHANS)
  36 #define CONFIG_CPU_PXA
  37 #include <asm/byteorder.h>
  38 #endif
  39
  40 #if defined(CONFIG_MPC823)
  41 #include <lcdvideo.h>
  42 #endif
  43
  44 #if defined(CONFIG_ATMEL_LCD)
  45 #include <atmel_lcdc.h>
  46 #endif
  47
  48 #if defined(CONFIG_LCD_DT_SIMPLEFB)
  49 #include <libfdt.h>
  50 #endif
  51
  52 /************************************************************************/
  53 /* ** FONT DATA                                                         */
  54 /************************************************************************/
  55 #include <video_font.h>         /* Get font data, width and height      */
  56
  57 /************************************************************************/
  58 /* ** LOGO DATA                                                         */
  59 /************************************************************************/
  60 #ifdef CONFIG_LCD_LOGO
  61 # include <bmp_logo.h>          /* Get logo data, width and height      */
  62 # include <bmp_logo_data.h>
  63 # if (CONSOLE_COLOR_WHITE >= BMP_LOGO_OFFSET) && (LCD_BPP != LCD_COLOR16)
  64 #  error Default Color Map overlaps with Logo Color Map
  65 # endif
  66 #endif
  67
  68 #ifdef CONFIG_SANDBOX
  69 #include <asm/sdl.h>
  70 #endif
  71
  72 #ifndef CONFIG_LCD_ALIGNMENT
  73 #define CONFIG_LCD_ALIGNMENT PAGE_SIZE
  74 #endif
  75
  76 /* By default we scroll by a single line */
  77 #ifndef CONFIG_CONSOLE_SCROLL_LINES
  78 #define CONFIG_CONSOLE_SCROLL_LINES 1
  79 #endif
  80
  81 /************************************************************************/
  82 /* ** CONSOLE DEFINITIONS & FUNCTIONS                                   */
  83 /************************************************************************/
  84 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
  85 # define CONSOLE_ROWS           ((panel_info.vl_row-BMP_LOGO_HEIGHT) \
  86                                         / VIDEO_FONT_HEIGHT)
  87 #else
  88 # define CONSOLE_ROWS           (panel_info.vl_row / VIDEO_FONT_HEIGHT)
  89 #endif
  90
  91 #define CONSOLE_COLS            (panel_info.vl_col / VIDEO_FONT_WIDTH)
  92 #define CONSOLE_ROW_SIZE        (VIDEO_FONT_HEIGHT * lcd_line_length)
  93 #define CONSOLE_ROW_FIRST       lcd_console_address
  94 #define CONSOLE_ROW_SECOND      (lcd_console_address + CONSOLE_ROW_SIZE)
  95 #define CONSOLE_ROW_LAST        (lcd_console_address + CONSOLE_SIZE \
  96                                         - CONSOLE_ROW_SIZE)
  97 #define CONSOLE_SIZE            (CONSOLE_ROW_SIZE * CONSOLE_ROWS)
  98 #define CONSOLE_SCROLL_SIZE     (CONSOLE_SIZE - CONSOLE_ROW_SIZE)
  99
 100 #if LCD_BPP == LCD_MONOCHROME
 101 # define COLOR_MASK(c)          ((c)      | (c) << 1 | (c) << 2 | (c) << 3 | \
 102                                  (c) << 4 | (c) << 5 | (c) << 6 | (c) << 7)
 103 #elif (LCD_BPP == LCD_COLOR8) || (LCD_BPP == LCD_COLOR16) || \
 104         (LCD_BPP == LCD_COLOR32)
 105 # define COLOR_MASK(c)          (c)
 106 #else
 107 # error Unsupported LCD BPP.
 108 #endif
 109
 110 DECLARE_GLOBAL_DATA_PTR;
 111
 112 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count);
 113 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s);
 114 static inline void lcd_putc_xy(ushort x, ushort y, uchar  c);
 115
 116 static int lcd_init(void *lcdbase);
 117
 118 static void *lcd_logo(void);
 119
 120 static void lcd_setfgcolor(int color);
 121 static void lcd_setbgcolor(int color);
 122
 123 static int lcd_color_fg;
 124 static int lcd_color_bg;
 125 int lcd_line_length;
 126
 127 char lcd_is_enabled = 0;
 128
 129 static short console_col;
 130 static short console_row;
 131
 132 static void *lcd_console_address;
 133 static void *lcd_base;                  /* Start of framebuffer memory  */
 134
 135 static char lcd_flush_dcache;   /* 1 to flush dcache after each lcd update */
 136
 137 /************************************************************************/
 138
 139 /* Flush LCD activity to the caches */
 140 void lcd_sync(void)
 141 {
 142         /*
 143          * flush_dcache_range() is declared in common.h but it seems that some
 144          * architectures do not actually implement it. Is there a way to find
 145          * out whether it exists? For now, ARM is safe.
 146          */
 147 #if defined(CONFIG_ARM) && !defined(CONFIG_SYS_DCACHE_OFF)
 148         int line_length;
 149
 150         if (lcd_flush_dcache)
 151                 flush_dcache_range((u32)lcd_base,
 152                         (u32)(lcd_base + lcd_get_size(&line_length)));
 153 #elif defined(CONFIG_SANDBOX) && defined(CONFIG_VIDEO_SANDBOX_SDL)
 154         static ulong last_sync;
 155
 156         if (get_timer(last_sync) > 10) {
 157                 sandbox_sdl_sync(lcd_base);
 158                 last_sync = get_timer(0);
 159         }
 160 #endif
 161 }
 162
 163 void lcd_set_flush_dcache(int flush)
 164 {
 165         lcd_flush_dcache = (flush != 0);
 166 }
 167
 168 /*----------------------------------------------------------------------*/
 169
 170 static void console_scrollup(void)
 171 {
 172         const int rows = CONFIG_CONSOLE_SCROLL_LINES;
 173
 174         /* Copy up rows ignoring those that will be overwritten */
 175         memcpy(CONSOLE_ROW_FIRST,
 176                lcd_console_address + CONSOLE_ROW_SIZE * rows,
 177                CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows);
 178
 179         /* Clear the last rows */
 180 #if (LCD_BPP != LCD_COLOR32)
 181         memset(lcd_console_address + CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows,
 182                 COLOR_MASK(lcd_color_bg),
 183                 CONSOLE_ROW_SIZE * rows);
 184 #else
 185         u32 *ppix = lcd_console_address +
 186                     CONSOLE_SIZE - CONSOLE_ROW_SIZE * rows;
 187         u32 i;
 188         for (i = 0;
 189             i < (CONSOLE_ROW_SIZE * rows) / NBYTES(panel_info.vl_bpix);
 190             i++) {
 191                 *ppix++ = COLOR_MASK(lcd_color_bg);
 192         }
 193 #endif
 194         lcd_sync();
 195         console_row -= rows;
 196 }
 197
 198 /*----------------------------------------------------------------------*/
 199
 200 static inline void console_back(void)
 201 {
 202         if (--console_col < 0) {
 203                 console_col = CONSOLE_COLS-1 ;
 204                 if (--console_row < 0)
 205                         console_row = 0;
 206         }
 207
 208         lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
 209                 console_row * VIDEO_FONT_HEIGHT, ' ');
 210 }
 211
 212 /*----------------------------------------------------------------------*/
 213
 214 static inline void console_newline(void)
 215 {
 216         console_col = 0;
 217
 218         /* Check if we need to scroll the terminal */
 219         if (++console_row >= CONSOLE_ROWS)
 220                 console_scrollup();
 221         else
 222                 lcd_sync();
 223 }
 224
 225 /*----------------------------------------------------------------------*/
 226
 227 static void lcd_stub_putc(struct stdio_dev *dev, const char c)
 228 {
 229         lcd_putc(c);
 230 }
 231
 232 void lcd_putc(const char c)
 233 {
 234         if (!lcd_is_enabled) {
 235                 serial_putc(c);
 236
 237                 return;
 238         }
 239
 240         switch (c) {
 241         case '\r':
 242                 console_col = 0;
 243
 244                 return;
 245         case '\n':
 246                 console_newline();
 247
 248                 return;
 249         case '\t':      /* Tab (8 chars alignment) */
 250                 console_col +=  8;
 251                 console_col &= ~7;
 252
 253                 if (console_col >= CONSOLE_COLS)
 254                         console_newline();
 255
 256                 return;
 257         case '\b':
 258                 console_back();
 259
 260                 return;
 261         default:
 262                 lcd_putc_xy(console_col * VIDEO_FONT_WIDTH,
 263                         console_row * VIDEO_FONT_HEIGHT, c);
 264                 if (++console_col >= CONSOLE_COLS)
 265                         console_newline();
 266         }
 267 }
 268
 269 /*----------------------------------------------------------------------*/
 270
 271 static void lcd_stub_puts(struct stdio_dev *dev, const char *s)
 272 {
 273         lcd_puts(s);
 274 }
 275
 276 void lcd_puts(const char *s)
 277 {
 278         if (!lcd_is_enabled) {
 279                 serial_puts(s);
 280
 281                 return;
 282         }
 283
 284         while (*s)
 285                 lcd_putc(*s++);
 286
 287         lcd_sync();
 288 }
 289
 290 /*----------------------------------------------------------------------*/
 291
 292 void lcd_printf(const char *fmt, ...)
 293 {
 294         va_list args;
 295         char buf[CONFIG_SYS_PBSIZE];
 296
 297         va_start(args, fmt);
 298         vsprintf(buf, fmt, args);
 299         va_end(args);
 300
 301         lcd_puts(buf);
 302 }
 303
 304 /************************************************************************/
 305 /* ** Low-Level Graphics Routines                                       */
 306 /************************************************************************/
 307
 308 static void lcd_drawchars(ushort x, ushort y, uchar *str, int count)
 309 {
 310         uchar *dest;
 311         ushort row;
 312
 313 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
 314         y += BMP_LOGO_HEIGHT;
 315 #endif
 316
 317 #if LCD_BPP == LCD_MONOCHROME
 318         ushort off  = x * (1 << LCD_BPP) % 8;
 319 #endif
 320
 321         dest = (uchar *)(lcd_base + y * lcd_line_length + x * NBITS(LCD_BPP)/8);
 322
 323         for (row = 0; row < VIDEO_FONT_HEIGHT; ++row, dest += lcd_line_length) {
 324                 uchar *s = str;
 325                 int i;
 326 #if LCD_BPP == LCD_COLOR16
 327                 ushort *d = (ushort *)dest;
 328 #elif LCD_BPP == LCD_COLOR32
 329                 u32 *d = (u32 *)dest;
 330 #else
 331                 uchar *d = dest;
 332 #endif
 333
 334 #if LCD_BPP == LCD_MONOCHROME
 335                 uchar rest = *d & -(1 << (8 - off));
 336                 uchar sym;
 337 #endif
 338                 for (i = 0; i < count; ++i) {
 339                         uchar c, bits;
 340
 341                         c = *s++;
 342                         bits = video_fontdata[c * VIDEO_FONT_HEIGHT + row];
 343
 344 #if LCD_BPP == LCD_MONOCHROME
 345                         sym  = (COLOR_MASK(lcd_color_fg) & bits) |
 346                                 (COLOR_MASK(lcd_color_bg) & ~bits);
 347
 348                         *d++ = rest | (sym >> off);
 349                         rest = sym << (8-off);
 350 #elif LCD_BPP == LCD_COLOR8
 351                         for (c = 0; c < 8; ++c) {
 352                                 *d++ = (bits & 0x80) ?
 353                                                 lcd_color_fg : lcd_color_bg;
 354                                 bits <<= 1;
 355                         }
 356 #elif LCD_BPP == LCD_COLOR16
 357                         for (c = 0; c < 8; ++c) {
 358                                 *d++ = (bits & 0x80) ?
 359                                                 lcd_color_fg : lcd_color_bg;
 360                                 bits <<= 1;
 361                         }
 362 #elif LCD_BPP == LCD_COLOR32
 363                         for (c = 0; c < 8; ++c) {
 364                                 *d++ = (bits & 0x80) ?
 365                                                 lcd_color_fg : lcd_color_bg;
 366                                 bits <<= 1;
 367                         }
 368 #endif
 369                 }
 370 #if LCD_BPP == LCD_MONOCHROME
 371                 *d  = rest | (*d & ((1 << (8 - off)) - 1));
 372 #endif
 373         }
 374 }
 375
 376 /*----------------------------------------------------------------------*/
 377
 378 static inline void lcd_puts_xy(ushort x, ushort y, uchar *s)
 379 {
 380         lcd_drawchars(x, y, s, strlen((char *)s));
 381 }
 382
 383 /*----------------------------------------------------------------------*/
 384
 385 static inline void lcd_putc_xy(ushort x, ushort y, uchar c)
 386 {
 387         lcd_drawchars(x, y, &c, 1);
 388 }
 389
 390 /************************************************************************/
 391 /**  Small utility to check that you got the colours right              */
 392 /************************************************************************/
 393 #ifdef LCD_TEST_PATTERN
 394
 395 #define N_BLK_VERT      2
 396 #define N_BLK_HOR       3
 397
 398 static int test_colors[N_BLK_HOR * N_BLK_VERT] = {
 399         CONSOLE_COLOR_RED,      CONSOLE_COLOR_GREEN,    CONSOLE_COLOR_YELLOW,
 400         CONSOLE_COLOR_BLUE,     CONSOLE_COLOR_MAGENTA,  CONSOLE_COLOR_CYAN,
 401 };
 402
 403 static void test_pattern(void)
 404 {
 405         ushort v_max  = panel_info.vl_row;
 406         ushort h_max  = panel_info.vl_col;
 407         ushort v_step = (v_max + N_BLK_VERT - 1) / N_BLK_VERT;
 408         ushort h_step = (h_max + N_BLK_HOR  - 1) / N_BLK_HOR;
 409         ushort v, h;
 410         uchar *pix = (uchar *)lcd_base;
 411
 412         printf("[LCD] Test Pattern: %d x %d [%d x %d]\n",
 413                 h_max, v_max, h_step, v_step);
 414
 415         /* WARNING: Code silently assumes 8bit/pixel */
 416         for (v = 0; v < v_max; ++v) {
 417                 uchar iy = v / v_step;
 418                 for (h = 0; h < h_max; ++h) {
 419                         uchar ix = N_BLK_HOR * iy + h / h_step;
 420                         *pix++ = test_colors[ix];
 421                 }
 422         }
 423 }
 424 #endif /* LCD_TEST_PATTERN */
 425
 426
 427 /************************************************************************/
 428 /* ** GENERIC Initialization Routines                                   */
 429 /************************************************************************/
 430 /*
 431  * With most lcd drivers the line length is set up
 432  * by calculating it from panel_info parameters. Some
 433  * drivers need to calculate the line length differently,
 434  * so make the function weak to allow overriding it.
 435  */
 436 __weak int lcd_get_size(int *line_length)
 437 {
 438         *line_length = (panel_info.vl_col * NBITS(panel_info.vl_bpix)) / 8;
 439         return *line_length * panel_info.vl_row;
 440 }
 441
 442 int drv_lcd_init(void)
 443 {
 444         struct stdio_dev lcddev;
 445         int rc;
 446
 447         lcd_base = map_sysmem(gd->fb_base, 0);
 448
 449         lcd_init(lcd_base);             /* LCD initialization */
 450
 451         /* Device initialization */
 452         memset(&lcddev, 0, sizeof(lcddev));
 453
 454         strcpy(lcddev.name, "lcd");
 455         lcddev.ext   = 0;                       /* No extensions */
 456         lcddev.flags = DEV_FLAGS_OUTPUT;        /* Output only */
 457         lcddev.putc  = lcd_stub_putc;           /* 'putc' function */
 458         lcddev.puts  = lcd_stub_puts;           /* 'puts' function */
 459
 460         rc = stdio_register(&lcddev);
 461
 462         return (rc == 0) ? 1 : rc;
 463 }
 464
 465 /*----------------------------------------------------------------------*/
 466 void lcd_clear(void)
 467 {
 468 #if LCD_BPP == LCD_MONOCHROME
 469         /* Setting the palette */
 470         lcd_initcolregs();
 471
 472 #elif LCD_BPP == LCD_COLOR8
 473         /* Setting the palette */
 474         lcd_setcolreg(CONSOLE_COLOR_BLACK, 0, 0, 0);
 475         lcd_setcolreg(CONSOLE_COLOR_RED, 0xFF, 0, 0);
 476         lcd_setcolreg(CONSOLE_COLOR_GREEN, 0, 0xFF, 0);
 477         lcd_setcolreg(CONSOLE_COLOR_YELLOW, 0xFF, 0xFF, 0);
 478         lcd_setcolreg(CONSOLE_COLOR_BLUE, 0, 0, 0xFF);
 479         lcd_setcolreg(CONSOLE_COLOR_MAGENTA, 0xFF, 0, 0xFF);
 480         lcd_setcolreg(CONSOLE_COLOR_CYAN, 0, 0xFF, 0xFF);
 481         lcd_setcolreg(CONSOLE_COLOR_GREY, 0xAA, 0xAA, 0xAA);
 482         lcd_setcolreg(CONSOLE_COLOR_WHITE, 0xFF, 0xFF, 0xFF);
 483 #endif
 484
 485 #ifndef CONFIG_SYS_WHITE_ON_BLACK
 486         lcd_setfgcolor(CONSOLE_COLOR_BLACK);
 487         lcd_setbgcolor(CONSOLE_COLOR_WHITE);
 488 #else
 489         lcd_setfgcolor(CONSOLE_COLOR_WHITE);
 490         lcd_setbgcolor(CONSOLE_COLOR_BLACK);
 491 #endif  /* CONFIG_SYS_WHITE_ON_BLACK */
 492
 493 #ifdef  LCD_TEST_PATTERN
 494         test_pattern();
 495 #else
 496         /* set framebuffer to background color */
 497 #if (LCD_BPP != LCD_COLOR32)
 498         memset((char *)lcd_base,
 499                 COLOR_MASK(lcd_color_bg),
 500                 lcd_line_length * panel_info.vl_row);
 501 #else
 502         u32 *ppix = lcd_base;
 503         u32 i;
 504         for (i = 0;
 505            i < (lcd_line_length * panel_info.vl_row)/NBYTES(panel_info.vl_bpix);
 506            i++) {
 507                 *ppix++ = COLOR_MASK(lcd_color_bg);
 508         }
 509 #endif
 510 #endif
 511         /* Paint the logo and retrieve LCD base address */
 512         debug("[LCD] Drawing the logo...\n");
 513         lcd_console_address = lcd_logo();
 514
 515         console_col = 0;
 516         console_row = 0;
 517         lcd_sync();
 518 }
 519
 520 static int do_lcd_clear(cmd_tbl_t *cmdtp, int flag, int argc,
 521                         char *const argv[])
 522 {
 523         lcd_clear();
 524         return 0;
 525 }
 526
 527 U_BOOT_CMD(
 528         cls,    1,      1,      do_lcd_clear,
 529         "clear screen",
 530         ""
 531 );
 532
 533 /*----------------------------------------------------------------------*/
 534
 535 static int lcd_init(void *lcdbase)
 536 {
 537         /* Initialize the lcd controller */
 538         debug("[LCD] Initializing LCD frambuffer at %p\n", lcdbase);
 539
 540         lcd_ctrl_init(lcdbase);
 541
 542         /*
 543          * lcd_ctrl_init() of some drivers (i.e. bcm2835 on rpi_b) ignores
 544          * the 'lcdbase' argument and uses custom lcd base address
 545          * by setting up gd->fb_base. Check for this condition and fixup
 546          * 'lcd_base' address.
 547          */
 548         if (map_to_sysmem(lcdbase) != gd->fb_base)
 549                 lcd_base = map_sysmem(gd->fb_base, 0);
 550
 551         debug("[LCD] Using LCD frambuffer at %p\n", lcd_base);
 552
 553         lcd_get_size(&lcd_line_length);
 554         lcd_is_enabled = 1;
 555         lcd_clear();
 556         lcd_enable();
 557
 558         /* Initialize the console */
 559         console_col = 0;
 560 #ifdef CONFIG_LCD_INFO_BELOW_LOGO
 561         console_row = 7 + BMP_LOGO_HEIGHT / VIDEO_FONT_HEIGHT;
 562 #else
 563         console_row = 1;        /* leave 1 blank line below logo */
 564 #endif
 565
 566         return 0;
 567 }
 568
 569
 570 /************************************************************************/
 571 /* ** ROM capable initialization part - needed to reserve FB memory     */
 572 /************************************************************************/
 573 /*
 574  * This is called early in the system initialization to grab memory
 575  * for the LCD controller.
 576  * Returns new address for monitor, after reserving LCD buffer memory
 577  *
 578  * Note that this is running from ROM, so no write access to global data.
 579  */
 580 ulong lcd_setmem(ulong addr)
 581 {
 582         ulong size;
 583         int line_length;
 584
 585         debug("LCD panel info: %d x %d, %d bit/pix\n", panel_info.vl_col,
 586                 panel_info.vl_row, NBITS(panel_info.vl_bpix));
 587
 588         size = lcd_get_size(&line_length);
 589
 590         /* Round up to nearest full page, or MMU section if defined */
 591         size = ALIGN(size, CONFIG_LCD_ALIGNMENT);
 592         addr = ALIGN(addr - CONFIG_LCD_ALIGNMENT + 1, CONFIG_LCD_ALIGNMENT);
 593
 594         /* Allocate pages for the frame buffer. */
 595         addr -= size;
 596
 597         debug("Reserving %ldk for LCD Framebuffer at: %08lx\n",
 598               size >> 10, addr);
 599
 600         return addr;
 601 }
 602
 603 /*----------------------------------------------------------------------*/
 604
 605 static void lcd_setfgcolor(int color)
 606 {
 607         lcd_color_fg = color;
 608 }
 609
 610 /*----------------------------------------------------------------------*/
 611
 612 static void lcd_setbgcolor(int color)
 613 {
 614         lcd_color_bg = color;
 615 }
 616
 617 /************************************************************************/
 618 /* ** Chipset depending Bitmap / Logo stuff...                          */
 619 /************************************************************************/
 620 static inline ushort *configuration_get_cmap(void)
 621 {
 622 #if defined CONFIG_CPU_PXA
 623         struct pxafb_info *fbi = &panel_info.pxa;
 624         return (ushort *)fbi->palette;
 625 #elif defined(CONFIG_MPC823)
 626         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 627         cpm8xx_t *cp = &(immr->im_cpm);
 628         return (ushort *)&(cp->lcd_cmap[255 * sizeof(ushort)]);
 629 #elif defined(CONFIG_ATMEL_LCD)
 630         return (ushort *)(panel_info.mmio + ATMEL_LCDC_LUT(0));
 631 #elif !defined(CONFIG_ATMEL_HLCD) && !defined(CONFIG_EXYNOS_FB)
 632         return panel_info.cmap;
 633 #elif defined(CONFIG_LCD_LOGO)
 634         return bmp_logo_palette;
 635 #else
 636         return NULL;
 637 #endif
 638 }
 639
 640 #ifdef CONFIG_LCD_LOGO
 641 void bitmap_plot(int x, int y)
 642 {
 643 #ifdef CONFIG_ATMEL_LCD
 644         uint *cmap = (uint *)bmp_logo_palette;
 645 #else
 646         ushort *cmap = (ushort *)bmp_logo_palette;
 647 #endif
 648         ushort i, j;
 649         uchar *bmap;
 650         uchar *fb;
 651         ushort *fb16;
 652 #if defined(CONFIG_MPC823)
 653         immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 654         cpm8xx_t *cp = &(immr->im_cpm);
 655 #endif
 656         unsigned bpix = NBITS(panel_info.vl_bpix);
 657
 658         debug("Logo: width %d  height %d  colors %d  cmap %d\n",
 659                 BMP_LOGO_WIDTH, BMP_LOGO_HEIGHT, BMP_LOGO_COLORS,
 660                 ARRAY_SIZE(bmp_logo_palette));
 661
 662         bmap = &bmp_logo_bitmap[0];
 663         fb   = (uchar *)(lcd_base + y * lcd_line_length + x * bpix / 8);
 664
 665         if (bpix < 12) {
 666                 /* Leave room for default color map
 667                  * default case: generic system with no cmap (most likely 16bpp)
 668                  * cmap was set to the source palette, so no change is done.
 669                  * This avoids even more ifdefs in the next stanza
 670                  */
 671 #if defined(CONFIG_MPC823)
 672                 cmap = (ushort *) &(cp->lcd_cmap[BMP_LOGO_OFFSET * sizeof(ushort)]);
 673 #elif defined(CONFIG_ATMEL_LCD)
 674                 cmap = (uint *)configuration_get_cmap();
 675 #else
 676                 cmap = configuration_get_cmap();
 677 #endif
 678
 679                 WATCHDOG_RESET();
 680
 681                 /* Set color map */
 682                 for (i = 0; i < ARRAY_SIZE(bmp_logo_palette); ++i) {
 683                         ushort colreg = bmp_logo_palette[i];
 684 #ifdef CONFIG_ATMEL_LCD
 685                         uint lut_entry;
 686 #ifdef CONFIG_ATMEL_LCD_BGR555
 687                         lut_entry = ((colreg & 0x000F) << 11) |
 688                                         ((colreg & 0x00F0) <<  2) |
 689                                         ((colreg & 0x0F00) >>  7);
 690 #else /* CONFIG_ATMEL_LCD_RGB565 */
 691                         lut_entry = ((colreg & 0x000F) << 1) |
 692                                         ((colreg & 0x00F0) << 3) |
 693                                         ((colreg & 0x0F00) << 4);
 694 #endif
 695                         *(cmap + BMP_LOGO_OFFSET) = lut_entry;
 696                         cmap++;
 697 #else /* !CONFIG_ATMEL_LCD */
 698 #ifdef  CONFIG_SYS_INVERT_COLORS
 699                         *cmap++ = 0xffff - colreg;
 700 #else
 701                         *cmap++ = colreg;
 702 #endif
 703 #endif /* CONFIG_ATMEL_LCD */
 704                 }
 705
 706                 WATCHDOG_RESET();
 707
 708                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 709                         memcpy(fb, bmap, BMP_LOGO_WIDTH);
 710                         bmap += BMP_LOGO_WIDTH;
 711                         fb += panel_info.vl_col;
 712                 }
 713         }
 714         else { /* true color mode */
 715                 u16 col16;
 716                 fb16 = (ushort *)fb;
 717                 for (i = 0; i < BMP_LOGO_HEIGHT; ++i) {
 718                         for (j = 0; j < BMP_LOGO_WIDTH; j++) {
 719                                 col16 = bmp_logo_palette[(bmap[j]-16)];
 720                                 fb16[j] =
 721                                         ((col16 & 0x000F) << 1) |
 722                                         ((col16 & 0x00F0) << 3) |
 723                                         ((col16 & 0x0F00) << 4);
 724                                 }
 725                         bmap += BMP_LOGO_WIDTH;
 726                         fb16 += panel_info.vl_col;
 727                 }
 728         }
 729
 730         WATCHDOG_RESET();
 731         lcd_sync();
 732 }
 733 #else
 734 static inline void bitmap_plot(int x, int y) {}
 735 #endif /* CONFIG_LCD_LOGO */
 736
 737 /*----------------------------------------------------------------------*/
 738 #if defined(CONFIG_CMD_BMP) || defined(CONFIG_SPLASH_SCREEN)
 739 /*
 740  * Display the BMP file located at address bmp_image.
 741  * Only uncompressed.
 742  */
 743
 744 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
 745 #define BMP_ALIGN_CENTER        0x7FFF
 746
 747 static void splash_align_axis(int *axis, unsigned long panel_size,
 748                                         unsigned long picture_size)
 749 {
 750         unsigned long panel_picture_delta = panel_size - picture_size;
 751         unsigned long axis_alignment;
 752
 753         if (*axis == BMP_ALIGN_CENTER)
 754                 axis_alignment = panel_picture_delta / 2;
 755         else if (*axis < 0)
 756                 axis_alignment = panel_picture_delta + *axis + 1;
 757         else
 758                 return;
 759
 760         *axis = max(0, axis_alignment);
 761 }
 762 #endif
 763
 764
 765 #ifdef CONFIG_LCD_BMP_RLE8
 766
 767 #define BMP_RLE8_ESCAPE         0
 768 #define BMP_RLE8_EOL            0
 769 #define BMP_RLE8_EOBMP          1
 770 #define BMP_RLE8_DELTA          2
 771
 772 static void draw_unencoded_bitmap(ushort **fbp, uchar *bmap, ushort *cmap,
 773                                   int cnt)
 774 {
 775         while (cnt > 0) {
 776                 *(*fbp)++ = cmap[*bmap++];
 777                 cnt--;
 778         }
 779 }
 780
 781 static void draw_encoded_bitmap(ushort **fbp, ushort c, int cnt)
 782 {
 783         ushort *fb = *fbp;
 784         int cnt_8copy = cnt >> 3;
 785
 786         cnt -= cnt_8copy << 3;
 787         while (cnt_8copy > 0) {
 788                 *fb++ = c;
 789                 *fb++ = c;
 790                 *fb++ = c;
 791                 *fb++ = c;
 792                 *fb++ = c;
 793                 *fb++ = c;
 794                 *fb++ = c;
 795                 *fb++ = c;
 796                 cnt_8copy--;
 797         }
 798         while (cnt > 0) {
 799                 *fb++ = c;
 800                 cnt--;
 801         }
 802         *fbp = fb;
 803 }
 804
 805 /*
 806  * Do not call this function directly, must be called from lcd_display_bitmap.
 807  */
 808 static void lcd_display_rle8_bitmap(bmp_image_t *bmp, ushort *cmap, uchar *fb,
 809                                     int x_off, int y_off)
 810 {
 811         uchar *bmap;
 812         ulong width, height;
 813         ulong cnt, runlen;
 814         int x, y;
 815         int decode = 1;
 816
 817         width = get_unaligned_le32(&bmp->header.width);
 818         height = get_unaligned_le32(&bmp->header.height);
 819         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
 820
 821         x = 0;
 822         y = height - 1;
 823
 824         while (decode) {
 825                 if (bmap[0] == BMP_RLE8_ESCAPE) {
 826                         switch (bmap[1]) {
 827                         case BMP_RLE8_EOL:
 828                                 /* end of line */
 829                                 bmap += 2;
 830                                 x = 0;
 831                                 y--;
 832                                 /* 16bpix, 2-byte per pixel, width should *2 */
 833                                 fb -= (width * 2 + lcd_line_length);
 834                                 break;
 835                         case BMP_RLE8_EOBMP:
 836                                 /* end of bitmap */
 837                                 decode = 0;
 838                                 break;
 839                         case BMP_RLE8_DELTA:
 840                                 /* delta run */
 841                                 x += bmap[2];
 842                                 y -= bmap[3];
 843                                 /* 16bpix, 2-byte per pixel, x should *2 */
 844                                 fb = (uchar *) (lcd_base + (y + y_off - 1)
 845                                         * lcd_line_length + (x + x_off) * 2);
 846                                 bmap += 4;
 847                                 break;
 848                         default:
 849                                 /* unencoded run */
 850                                 runlen = bmap[1];
 851                                 bmap += 2;
 852                                 if (y < height) {
 853                                         if (x < width) {
 854                                                 if (x + runlen > width)
 855                                                         cnt = width - x;
 856                                                 else
 857                                                         cnt = runlen;
 858                                                 draw_unencoded_bitmap(
 859                                                         (ushort **)&fb,
 860                                                         bmap, cmap, cnt);
 861                                         }
 862                                         x += runlen;
 863                                 }
 864                                 bmap += runlen;
 865                                 if (runlen & 1)
 866                                         bmap++;
 867                         }
 868                 } else {
 869                         /* encoded run */
 870                         if (y < height) {
 871                                 runlen = bmap[0];
 872                                 if (x < width) {
 873                                         /* aggregate the same code */
 874                                         while (bmap[0] == 0xff &&
 875                                                bmap[2] != BMP_RLE8_ESCAPE &&
 876                                                bmap[1] == bmap[3]) {
 877                                                 runlen += bmap[2];
 878                                                 bmap += 2;
 879                                         }
 880                                         if (x + runlen > width)
 881                                                 cnt = width - x;
 882                                         else
 883                                                 cnt = runlen;
 884                                         draw_encoded_bitmap((ushort **)&fb,
 885                                                 cmap[bmap[1]], cnt);
 886                                 }
 887                                 x += runlen;
 888                         }
 889                         bmap += 2;
 890                 }
 891         }
 892 }
 893 #endif
 894
 895 #if defined(CONFIG_MPC823) || defined(CONFIG_MCC200)
 896 #define FB_PUT_BYTE(fb, from) *(fb)++ = (255 - *(from)++)
 897 #else
 898 #define FB_PUT_BYTE(fb, from) *(fb)++ = *(from)++
 899 #endif
 900
 901 #if defined(CONFIG_BMP_16BPP)
 902 #if defined(CONFIG_ATMEL_LCD_BGR555)
 903 static inline void fb_put_word(uchar **fb, uchar **from)
 904 {
 905         *(*fb)++ = (((*from)[0] & 0x1f) << 2) | ((*from)[1] & 0x03);
 906         *(*fb)++ = ((*from)[0] & 0xe0) | (((*from)[1] & 0x7c) >> 2);
 907         *from += 2;
 908 }
 909 #else
 910 static inline void fb_put_word(uchar **fb, uchar **from)
 911 {
 912         *(*fb)++ = *(*from)++;
 913         *(*fb)++ = *(*from)++;
 914 }
 915 #endif
 916 #endif /* CONFIG_BMP_16BPP */
 917
 918 int lcd_display_bitmap(ulong bmp_image, int x, int y)
 919 {
 920 #if !defined(CONFIG_MCC200)
 921         ushort *cmap = NULL;
 922 #endif
 923         ushort *cmap_base = NULL;
 924         ushort i, j;
 925         uchar *fb;
 926         bmp_image_t *bmp = (bmp_image_t *)map_sysmem(bmp_image, 0);
 927         uchar *bmap;
 928         ushort padded_width;
 929         unsigned long width, height, byte_width;
 930         unsigned long pwidth = panel_info.vl_col;
 931         unsigned colors, bpix, bmp_bpix;
 932
 933         if (!bmp || !(bmp->header.signature[0] == 'B' &&
 934                 bmp->header.signature[1] == 'M')) {
 935                 printf("Error: no valid bmp image at %lx\n", bmp_image);
 936
 937                 return 1;
 938         }
 939
 940         width = get_unaligned_le32(&bmp->header.width);
 941         height = get_unaligned_le32(&bmp->header.height);
 942         bmp_bpix = get_unaligned_le16(&bmp->header.bit_count);
 943
 944         colors = 1 << bmp_bpix;
 945
 946         bpix = NBITS(panel_info.vl_bpix);
 947
 948         if (bpix != 1 && bpix != 8 && bpix != 16 && bpix != 32) {
 949                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 950                         bpix, bmp_bpix);
 951
 952                 return 1;
 953         }
 954
 955         /* We support displaying 8bpp BMPs on 16bpp LCDs */
 956         if (bpix != bmp_bpix && !(bmp_bpix == 8 && bpix == 16)) {
 957                 printf ("Error: %d bit/pixel mode, but BMP has %d bit/pixel\n",
 958                         bpix, get_unaligned_le16(&bmp->header.bit_count));
 959                 return 1;
 960         }
 961
 962         debug("Display-bmp: %d x %d  with %d colors\n",
 963                 (int)width, (int)height, (int)colors);
 964
 965 #if !defined(CONFIG_MCC200)
 966         /* MCC200 LCD doesn't need CMAP, supports 1bpp b&w only */
 967         if (bmp_bpix == 8) {
 968                 cmap = configuration_get_cmap();
 969                 cmap_base = cmap;
 970
 971                 /* Set color map */
 972                 for (i = 0; i < colors; ++i) {
 973                         bmp_color_table_entry_t cte = bmp->color_table[i];
 974 #if !defined(CONFIG_ATMEL_LCD)
 975                         ushort colreg =
 976                                 ( ((cte.red)   << 8) & 0xf800) |
 977                                 ( ((cte.green) << 3) & 0x07e0) |
 978                                 ( ((cte.blue)  >> 3) & 0x001f) ;
 979 #ifdef CONFIG_SYS_INVERT_COLORS
 980                         *cmap = 0xffff - colreg;
 981 #else
 982                         *cmap = colreg;
 983 #endif
 984 #if defined(CONFIG_MPC823)
 985                         cmap--;
 986 #else
 987                         cmap++;
 988 #endif
 989 #else /* CONFIG_ATMEL_LCD */
 990                         lcd_setcolreg(i, cte.red, cte.green, cte.blue);
 991 #endif
 992                 }
 993         }
 994 #endif
 995         /*
 996          *  BMP format for Monochrome assumes that the state of a
 997          * pixel is described on a per Bit basis, not per Byte.
 998          *  So, in case of Monochrome BMP we should align widths
 999          * on a byte boundary and convert them from Bit to Byte
1000          * units.
1001          *  Probably, PXA250 and MPC823 process 1bpp BMP images in
1002          * their own ways, so make the converting to be MCC200
1003          * specific.
1004          */
1005 #if defined(CONFIG_MCC200)
1006         if (bpix == 1) {
1007                 width = ((width + 7) & ~7) >> 3;
1008                 x     = ((x + 7) & ~7) >> 3;
1009                 pwidth= ((pwidth + 7) & ~7) >> 3;
1010         }
1011 #endif
1012
1013         padded_width = (width & 0x3 ? (width & ~0x3) + 4 : width);
1014
1015 #ifdef CONFIG_SPLASH_SCREEN_ALIGN
1016         splash_align_axis(&x, pwidth, width);
1017         splash_align_axis(&y, panel_info.vl_row, height);
1018 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
1019
1020         if ((x + width) > pwidth)
1021                 width = pwidth - x;
1022         if ((y + height) > panel_info.vl_row)
1023                 height = panel_info.vl_row - y;
1024
1025         bmap = (uchar *)bmp + get_unaligned_le32(&bmp->header.data_offset);
1026         fb   = (uchar *)(lcd_base +
1027                 (y + height - 1) * lcd_line_length + x * bpix / 8);
1028
1029         switch (bmp_bpix) {
1030         case 1: /* pass through */
1031         case 8:
1032 #ifdef CONFIG_LCD_BMP_RLE8
1033                 u32 compression = get_unaligned_le32(&bmp->header.compression);
1034                 if (compression == BMP_BI_RLE8) {
1035                         if (bpix != 16) {
1036                                 /* TODO implement render code for bpix != 16 */
1037                                 printf("Error: only support 16 bpix");
1038                                 return 1;
1039                         }
1040                         lcd_display_rle8_bitmap(bmp, cmap_base, fb, x, y);
1041                         break;
1042                 }
1043 #endif
1044
1045                 if (bpix != 16)
1046                         byte_width = width;
1047                 else
1048                         byte_width = width * 2;
1049
1050                 for (i = 0; i < height; ++i) {
1051                         WATCHDOG_RESET();
1052                         for (j = 0; j < width; j++) {
1053                                 if (bpix != 16) {
1054                                         FB_PUT_BYTE(fb, bmap);
1055                                 } else {
1056                                         *(uint16_t *)fb = cmap_base[*(bmap++)];
1057                                         fb += sizeof(uint16_t) / sizeof(*fb);
1058                                 }
1059                         }
1060                         bmap += (padded_width - width);
1061                         fb -= byte_width + lcd_line_length;
1062                 }
1063                 break;
1064
1065 #if defined(CONFIG_BMP_16BPP)
1066         case 16:
1067                 for (i = 0; i < height; ++i) {
1068                         WATCHDOG_RESET();
1069                         for (j = 0; j < width; j++)
1070                                 fb_put_word(&fb, &bmap);
1071
1072                         bmap += (padded_width - width) * 2;
1073                         fb -= width * 2 + lcd_line_length;
1074                 }
1075                 break;
1076 #endif /* CONFIG_BMP_16BPP */
1077
1078 #if defined(CONFIG_BMP_32BPP)
1079         case 32:
1080                 for (i = 0; i < height; ++i) {
1081                         for (j = 0; j < width; j++) {
1082                                 *(fb++) = *(bmap++);
1083                                 *(fb++) = *(bmap++);
1084                                 *(fb++) = *(bmap++);
1085                                 *(fb++) = *(bmap++);
1086                         }
1087                         fb -= lcd_line_length + width * (bpix / 8);
1088                 }
1089                 break;
1090 #endif /* CONFIG_BMP_32BPP */
1091         default:
1092                 break;
1093         };
1094
1095         lcd_sync();
1096         return 0;
1097 }
1098 #endif
1099
1100 static void *lcd_logo(void)
1101 {
1102 #ifdef CONFIG_SPLASH_SCREEN
1103         char *s;
1104         ulong addr;
1105         static int do_splash = 1;
1106
1107         if (do_splash && (s = getenv("splashimage")) != NULL) {
1108                 int x = 0, y = 0;
1109                 do_splash = 0;
1110
1111                 if (splash_screen_prepare())
1112                         return (void *)lcd_base;
1113
1114                 addr = simple_strtoul (s, NULL, 16);
1115
1116                 splash_get_pos(&x, &y);
1117
1118                 if (bmp_display(addr, x, y) == 0)
1119                         return (void *)lcd_base;
1120         }
1121 #endif /* CONFIG_SPLASH_SCREEN */
1122
1123         bitmap_plot(0, 0);
1124
1125 #ifdef CONFIG_LCD_INFO
1126         console_col = LCD_INFO_X / VIDEO_FONT_WIDTH;
1127         console_row = LCD_INFO_Y / VIDEO_FONT_HEIGHT;
1128         lcd_show_board_info();
1129 #endif /* CONFIG_LCD_INFO */
1130
1131 #if defined(CONFIG_LCD_LOGO) && !defined(CONFIG_LCD_INFO_BELOW_LOGO)
1132         return (void *)((ulong)lcd_base + BMP_LOGO_HEIGHT * lcd_line_length);
1133 #else
1134         return (void *)lcd_base;
1135 #endif /* CONFIG_LCD_LOGO && !defined(CONFIG_LCD_INFO_BELOW_LOGO) */
1136 }
1137
1138 #ifdef CONFIG_SPLASHIMAGE_GUARD
1139 static int on_splashimage(const char *name, const char *value, enum env_op op,
1140         int flags)
1141 {
1142         ulong addr;
1143         int aligned;
1144
1145         if (op == env_op_delete)
1146                 return 0;
1147
1148         addr = simple_strtoul(value, NULL, 16);
1149         /* See README.displaying-bmps */
1150         aligned = (addr % 4 == 2);
1151         if (!aligned) {
1152                 printf("Invalid splashimage value. Value must be 16 bit aligned, but not 32 bit aligned\n");
1153                 return -1;
1154         }
1155
1156         return 0;
1157 }
1158
1159 U_BOOT_ENV_CALLBACK(splashimage, on_splashimage);
1160 #endif
1161
1162 void lcd_position_cursor(unsigned col, unsigned row)
1163 {
1164         console_col = min(col, CONSOLE_COLS - 1);
1165         console_row = min(row, CONSOLE_ROWS - 1);
1166 }
1167
1168 int lcd_get_pixel_width(void)
1169 {
1170         return panel_info.vl_col;
1171 }
1172
1173 int lcd_get_pixel_height(void)
1174 {
1175         return panel_info.vl_row;
1176 }
1177
1178 int lcd_get_screen_rows(void)
1179 {
1180         return CONSOLE_ROWS;
1181 }
1182
1183 int lcd_get_screen_columns(void)
1184 {
1185         return CONSOLE_COLS;
1186 }
1187
1188 #if defined(CONFIG_LCD_DT_SIMPLEFB)
1189 static int lcd_dt_simplefb_configure_node(void *blob, int off)
1190 {
1191         u32 stride;
1192         fdt32_t cells[2];
1193         int ret;
1194         static const char format[] =
1195 #if LCD_BPP == LCD_COLOR16
1196                 "r5g6b5";
1197 #else
1198                 "";
1199 #endif
1200
1201         if (!format[0])
1202                 return -1;
1203
1204         stride = panel_info.vl_col * 2;
1205
1206         cells[0] = cpu_to_fdt32(gd->fb_base);
1207         cells[1] = cpu_to_fdt32(stride * panel_info.vl_row);
1208         ret = fdt_setprop(blob, off, "reg", cells, sizeof(cells[0]) * 2);
1209         if (ret < 0)
1210                 return -1;
1211
1212         cells[0] = cpu_to_fdt32(panel_info.vl_col);
1213         ret = fdt_setprop(blob, off, "width", cells, sizeof(cells[0]));
1214         if (ret < 0)
1215                 return -1;
1216
1217         cells[0] = cpu_to_fdt32(panel_info.vl_row);
1218         ret = fdt_setprop(blob, off, "height", cells, sizeof(cells[0]));
1219         if (ret < 0)
1220                 return -1;
1221
1222         cells[0] = cpu_to_fdt32(stride);
1223         ret = fdt_setprop(blob, off, "stride", cells, sizeof(cells[0]));
1224         if (ret < 0)
1225                 return -1;
1226
1227         ret = fdt_setprop(blob, off, "format", format, strlen(format) + 1);
1228         if (ret < 0)
1229                 return -1;
1230
1231         ret = fdt_delprop(blob, off, "status");
1232         if (ret < 0)
1233                 return -1;
1234
1235         return 0;
1236 }
1237
1238 int lcd_dt_simplefb_add_node(void *blob)
1239 {
1240         static const char compat[] = "simple-framebuffer";
1241         static const char disabled[] = "disabled";
1242         int off, ret;
1243
1244         off = fdt_add_subnode(blob, 0, "framebuffer");
1245         if (off < 0)
1246                 return -1;
1247
1248         ret = fdt_setprop(blob, off, "status", disabled, sizeof(disabled));
1249         if (ret < 0)
1250                 return -1;
1251
1252         ret = fdt_setprop(blob, off, "compatible", compat, sizeof(compat));
1253         if (ret < 0)
1254                 return -1;
1255
1256         return lcd_dt_simplefb_configure_node(blob, off);
1257 }
1258
1259 int lcd_dt_simplefb_enable_existing_node(void *blob)
1260 {
1261         int off;
1262
1263         off = fdt_node_offset_by_compatible(blob, -1, "simple-framebuffer");
1264         if (off < 0)
1265                 return -1;
1266
1267         return lcd_dt_simplefb_configure_node(blob, off);
1268 }
1269 #endif