pandora/plat.c

   1 // (c) Copyright 2006-2009 notaz, All rights reserved.\r
   2 // Free for non-commercial use.\r
   3 \r
   4 // For commercial use, separate licencing terms must be obtained.\r
   5 \r
   6 #include <stdio.h>\r
   7 #include <unistd.h>\r
   8 #include <stdarg.h>\r
   9 #include <sys/types.h>\r
  10 #include <sys/stat.h>\r
  11 #include <fcntl.h>\r
  12 #include <sys/ioctl.h>\r
  13 #include <unistd.h>\r
  14 #include <linux/fb.h>\r
  15 #include <linux/omapfb.h>\r
  16 \r
  17 #include "../common/emu.h"\r
  18 #include "../common/menu.h"\r
  19 #include "../common/plat.h"\r
  20 #include "../common/arm_utils.h"\r
  21 #include "../linux/sndout_oss.h"\r
  22 #include "../linux/fbdev.h"\r
  23 #include "plat.h"\r
  24 #include "asm_utils.h"\r
  25 #include "version.h"\r
  26 \r
  27 #include <pico/pico_int.h>\r
  28 \r
  29 \r
  30 static struct vout_fbdev *main_fb, *layer_fb;\r
  31 static int g_layer_x, g_layer_y;\r
  32 static int g_layer_w = 320, g_layer_h = 240;\r
  33 static int g_osd_fps_x, g_osd_y;\r
  34 \r
  35 static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";\r
  36 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];\r
  37 static unsigned char __attribute__((aligned(4))) temp_frame[g_menuscreen_w * g_menuscreen_h * 2];\r
  38 static unsigned char __attribute__((aligned(4))) fb_copy[g_screen_width * g_screen_height * 2];\r
  39 unsigned char *PicoDraw2FB = temp_frame;\r
  40 const char *renderer_names[] = { NULL };\r
  41 const char *renderer_names32x[] = { NULL };\r
  42 char cpu_clk_name[] = "Max CPU clock";\r
  43 \r
  44 static int get_cpu_clock(void)\r
  45 {\r
  46         FILE *f;\r
  47         int ret = 0;\r
  48         f = fopen("/proc/pandora/cpu_mhz_max", "r");\r
  49         if (f) {\r
  50                 fscanf(f, "%d", &ret);\r
  51                 fclose(f);\r
  52         }\r
  53         return ret;\r
  54 }\r
  55 \r
  56 void pemu_prep_defconfig(void)\r
  57 {\r
  58         defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
  59         defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;\r
  60         defaultConfig.scaling = SCALE_2x2_3x2;\r
  61 }\r
  62 \r
  63 void pemu_validate_config(void)\r
  64 {\r
  65         currentConfig.CPUclock = get_cpu_clock();\r
  66 }\r
  67 \r
  68 static void osd_text(int x, int y, const char *text)\r
  69 {\r
  70         int len = strlen(text)*8;\r
  71         int i, h;\r
  72 \r
  73         len++;\r
  74         for (h = 0; h < 8; h++) {\r
  75                 unsigned short *p;\r
  76                 p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);\r
  77                 for (i = len; i; i--, p++)\r
  78                         *p = (*p>>2) & 0x39e7;\r
  79         }\r
  80         emu_text_out16(x, y, text);\r
  81 }\r
  82 \r
  83 static void draw_cd_leds(void)\r
  84 {\r
  85         int old_reg;\r
  86         old_reg = Pico_mcd->s68k_regs[0];\r
  87 \r
  88         if (0) {\r
  89                 // 8-bit modes\r
  90                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
  91                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
  92                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
  93                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
  94                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
  95                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
  96                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
  97                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
  98         } else {\r
  99                 // 16-bit modes\r
 100                 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
 101                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 102                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 103                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 104                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 105                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 106         }\r
 107 }\r
 108 \r
 109 static int emuscan(unsigned int num)\r
 110 {\r
 111         DrawLineDest = (unsigned short *)g_screen_ptr + num * g_screen_width;\r
 112 \r
 113         return 0;\r
 114 }\r
 115 \r
 116 void pemu_finalize_frame(const char *fps, const char *notice)\r
 117 {\r
 118         if (notice || (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r
 119                 if (notice)\r
 120                         osd_text(2, g_osd_y, notice);\r
 121                 if (currentConfig.EmuOpt & EOPT_SHOW_FPS)\r
 122                         osd_text(g_osd_fps_x, g_osd_y, fps);\r
 123         }\r
 124         if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
 125                 draw_cd_leds();\r
 126 }\r
 127 \r
 128 void plat_video_flip(void)\r
 129 {\r
 130         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 131 }\r
 132 \r
 133 void plat_video_toggle_renderer(int change, int is_menu)\r
 134 {\r
 135 }\r
 136 \r
 137 void plat_video_menu_enter(int is_rom_loaded)\r
 138 {\r
 139 }\r
 140 \r
 141 void plat_video_menu_begin(void)\r
 142 {\r
 143         memcpy32(g_menuscreen_ptr, g_menubg_ptr, g_menuscreen_w * g_menuscreen_h * 2 / 4);\r
 144 }\r
 145 \r
 146 void plat_video_menu_end(void)\r
 147 {\r
 148         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 149 }\r
 150 \r
 151 void plat_video_wait_vsync(void)\r
 152 {\r
 153         vout_fbdev_wait_vsync(main_fb);\r
 154 }\r
 155 \r
 156 void plat_status_msg_clear(void)\r
 157 {\r
 158         vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
 159 }\r
 160 \r
 161 void plat_status_msg_busy_next(const char *msg)\r
 162 {\r
 163         plat_status_msg_clear();\r
 164         pemu_finalize_frame("", msg);\r
 165         plat_video_flip();\r
 166         emu_status_msg("");\r
 167         reset_timing = 1;\r
 168 }\r
 169 \r
 170 void plat_status_msg_busy_first(const char *msg)\r
 171 {\r
 172         plat_status_msg_busy_next(msg);\r
 173 }\r
 174 \r
 175 void plat_update_volume(int has_changed, int is_up)\r
 176 {\r
 177         static int prev_frame = 0, wait_frames = 0;\r
 178         int vol = currentConfig.volume;\r
 179 \r
 180         if (has_changed)\r
 181         {\r
 182                 if (is_up) {\r
 183                         if (vol < 99) vol++;\r
 184                 } else {\r
 185                         if (vol >  0) vol--;\r
 186                 }\r
 187                 wait_frames = 0;\r
 188                 sndout_oss_setvol(vol, vol);\r
 189                 currentConfig.volume = vol;\r
 190                 emu_status_msg("VOL: %02i", vol);\r
 191                 prev_frame = Pico.m.frame_count;\r
 192         }\r
 193 }\r
 194 \r
 195 void pemu_forced_frame(int opts, int no_scale)\r
 196 {\r
 197         int oldscale = currentConfig.scaling;\r
 198         int po_old = PicoOpt;\r
 199 \r
 200         if (no_scale) {\r
 201                 currentConfig.scaling = SCALE_1x1;\r
 202                 emu_video_mode_change(8, 224, 0);\r
 203         }\r
 204 \r
 205         PicoOpt |= opts|POPT_ACC_SPRITES;\r
 206 \r
 207         Pico.m.dirtyPal = 1;\r
 208         PicoFrameDrawOnly();\r
 209 \r
 210         PicoOpt = po_old;\r
 211         currentConfig.scaling = oldscale;\r
 212 }\r
 213 \r
 214 static void updateSound(int len)\r
 215 {\r
 216         unsigned int t;\r
 217 \r
 218         len <<= 1;\r
 219         if (PicoOpt & POPT_EN_STEREO)\r
 220                 len <<= 1;\r
 221 \r
 222         // sndout_oss_can_write() not reliable..\r
 223         if ((currentConfig.EmuOpt & EOPT_NO_FRMLIMIT) && !sndout_oss_can_write(len))\r
 224                 return;\r
 225 \r
 226         /* avoid writing audio when lagging behind to prevent audio lag */\r
 227         if (PicoSkipFrame == 2)\r
 228                 return;\r
 229 \r
 230         t = plat_get_ticks_ms();\r
 231         sndout_oss_write(PsndOut, len);\r
 232         t = plat_get_ticks_ms() - t;\r
 233         if (t > 1)\r
 234                 printf("audio lag %u\n", t);\r
 235 }\r
 236 \r
 237 void pemu_sound_start(void)\r
 238 {\r
 239         int target_fps = Pico.m.pal ? 50 : 60;\r
 240 \r
 241         PsndOut = NULL;\r
 242 \r
 243         if (currentConfig.EmuOpt & EOPT_EN_SOUND)\r
 244         {\r
 245                 int snd_excess_add, frame_samples;\r
 246                 int is_stereo = (PicoOpt & POPT_EN_STEREO) ? 1 : 0;\r
 247 \r
 248                 PsndRerate(Pico.m.frame_count ? 1 : 0);\r
 249 \r
 250                 frame_samples = PsndLen;\r
 251                 snd_excess_add = ((PsndRate - PsndLen * target_fps)<<16) / target_fps;\r
 252                 if (snd_excess_add != 0)\r
 253                         frame_samples++;\r
 254 \r
 255                 /*\r
 256                  * for 44k stereo, we do 1470 samples/frame\r
 257                  * OMAP driver does power of 2 buffers, so we need at least 4K buffer.\r
 258                  * The most we can lag is 1K samples, size of OMAP's McBSP FIFO,\r
 259                  * with 2K sample buffer we might sometimes lag more than that,\r
 260                  * thus causing underflows.\r
 261                  */\r
 262                 printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",\r
 263                         PsndRate, PsndLen, snd_excess_add, is_stereo, Pico.m.pal);\r
 264                 sndout_oss_start(PsndRate, frame_samples * 2, is_stereo);\r
 265                 //sndout_oss_setvol(currentConfig.volume, currentConfig.volume);\r
 266                 PicoWriteSound = updateSound;\r
 267                 plat_update_volume(0, 0);\r
 268                 memset(sndBuffer, 0, sizeof(sndBuffer));\r
 269                 PsndOut = sndBuffer;\r
 270         }\r
 271 }\r
 272 \r
 273 void pemu_sound_stop(void)\r
 274 {\r
 275         sndout_oss_stop();\r
 276 }\r
 277 \r
 278 void pemu_sound_wait(void)\r
 279 {\r
 280         // don't need to do anything, writes will block by themselves\r
 281 }\r
 282 \r
 283 void plat_debug_cat(char *str)\r
 284 {\r
 285 }\r
 286 \r
 287 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
 288 {\r
 289         struct omapfb_plane_info pi;\r
 290         struct omapfb_mem_info mi;\r
 291         int ret;\r
 292 \r
 293         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
 294         if (ret != 0) {\r
 295                 perror("QUERY_PLANE");\r
 296                 return -1;\r
 297         }\r
 298 \r
 299         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
 300         if (ret != 0) {\r
 301                 perror("QUERY_MEM");\r
 302                 return -1;\r
 303         }\r
 304 \r
 305         /* must disable when changing stuff */\r
 306         if (pi.enabled) {\r
 307                 pi.enabled = 0;\r
 308                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 309                 if (ret != 0)\r
 310                         perror("SETUP_PLANE");\r
 311         }\r
 312 \r
 313         mi.size = 320*240*2*4;\r
 314         ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
 315         if (ret != 0) {\r
 316                 perror("SETUP_MEM");\r
 317                 return -1;\r
 318         }\r
 319 \r
 320         pi.pos_x = x;\r
 321         pi.pos_y = y;\r
 322         pi.out_width = w;\r
 323         pi.out_height = h;\r
 324         pi.enabled = enabled;\r
 325 \r
 326         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 327         if (ret != 0) {\r
 328                 perror("SETUP_PLANE");\r
 329                 return -1;\r
 330         }\r
 331 \r
 332         return 0;\r
 333 }\r
 334 \r
 335 int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
 336 {\r
 337         return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
 338 }\r
 339 \r
 340 void pnd_restore_layer_data(void)\r
 341 {\r
 342         short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
 343 \r
 344         // right now this is used by menu, which wants to preview something\r
 345         // so try to get something on the layer.\r
 346         if ((t[0] | t[5] | t[13]) == 0)\r
 347                 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
 348 \r
 349         memcpy32(g_screen_ptr, (void *)fb_copy, 320*240*2 / 4);\r
 350         plat_video_flip();\r
 351 }\r
 352 \r
 353 static void apply_filter(int which)\r
 354 {\r
 355         char buf[128];\r
 356         int i;\r
 357 \r
 358         if (pnd_filter_list == NULL)\r
 359                 return;\r
 360 \r
 361         for (i = 0; i < which; i++)\r
 362                 if (pnd_filter_list[i] == NULL)\r
 363                         return;\r
 364 \r
 365         if (pnd_filter_list[i] == NULL)\r
 366                 return;\r
 367 \r
 368         snprintf(buf, sizeof(buf), "%s/op_videofir.sh %s", pnd_script_base, pnd_filter_list[i]);\r
 369         system(buf);\r
 370 }\r
 371 \r
 372 void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
 373 {\r
 374         int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
 375 \r
 376         PicoScanBegin = emuscan;\r
 377         PicoScanEnd = NULL;\r
 378         PicoDrawSetOutFormat(PDF_RGB555, 1);\r
 379 \r
 380         if (is_32cols) {\r
 381                 fb_w = 256;\r
 382                 fb_left = fb_right = 32;\r
 383         }\r
 384 \r
 385         switch (currentConfig.scaling) {\r
 386         case SCALE_1x1:\r
 387                 g_layer_w = fb_w;\r
 388                 g_layer_h = fb_h;\r
 389                 break;\r
 390         case SCALE_2x2_3x2:\r
 391                 g_layer_w = fb_w * (is_32cols ? 3 : 2);\r
 392                 g_layer_h = fb_h * 2;\r
 393                 break;\r
 394         case SCALE_2x2_2x2:\r
 395                 g_layer_w = fb_w * 2;\r
 396                 g_layer_h = fb_h * 2;\r
 397                 break;\r
 398         case SCALE_FULLSCREEN:\r
 399                 g_layer_w = 800;\r
 400                 g_layer_h = 480;\r
 401                 break;\r
 402         case SCALE_CUSTOM:\r
 403                 g_layer_x = g_layer_cx;\r
 404                 g_layer_y = g_layer_cy;\r
 405                 g_layer_w = g_layer_cw;\r
 406                 g_layer_h = g_layer_ch;\r
 407                 break;\r
 408         }\r
 409 \r
 410         if (currentConfig.scaling != SCALE_CUSTOM) {\r
 411                 // center the layer\r
 412                 g_layer_x = 800 / 2 - g_layer_w / 2;\r
 413                 g_layer_y = 480 / 2 - g_layer_h / 2;\r
 414         }\r
 415 \r
 416         switch (currentConfig.scaling) {\r
 417         case SCALE_FULLSCREEN:\r
 418         case SCALE_CUSTOM:\r
 419                 fb_top = start_line;\r
 420                 fb_h = line_count;\r
 421                 break;\r
 422         }\r
 423         g_osd_fps_x = is_32cols ? 232 : 264;\r
 424         g_osd_y = fb_top + fb_h - 8;\r
 425 \r
 426         pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 427         vout_fbdev_resize(layer_fb, fb_w, fb_h, fb_left, fb_right, fb_top, fb_bottom, 0);\r
 428         vout_fbdev_clear(layer_fb);\r
 429 }\r
 430 \r
 431 static void make_bg(void)\r
 432 {\r
 433         unsigned short *s = (void *)fb_copy;\r
 434         unsigned int t, *d = (unsigned int *)g_menubg_src_ptr + 80 / 2;\r
 435         int x, y;\r
 436 \r
 437         memset32(g_menubg_src_ptr, 0, 800 * 480 * 2 / 4);\r
 438 \r
 439         for (y = 0; y < 240; y++, s += 320, d += 800*2/2) {\r
 440                 for (x = 0; x < 320; x++) {\r
 441                         t = s[x];\r
 442                         t |= t << 16;\r
 443                         d[x] = d[x + 800 / 2] = t;\r
 444                 }\r
 445         }\r
 446 }\r
 447 \r
 448 void pemu_loop_prep(void)\r
 449 {\r
 450         static int pal_old = -1;\r
 451         static int filter_old = -1;\r
 452         char buf[128];\r
 453 \r
 454         if (currentConfig.CPUclock != get_cpu_clock()) {\r
 455                 snprintf(buf, sizeof(buf), "unset DISPLAY; echo y | %s/op_cpuspeed.sh %d",\r
 456                          pnd_script_base, currentConfig.CPUclock);\r
 457                 system(buf);\r
 458         }\r
 459 \r
 460         if (Pico.m.pal != pal_old) {\r
 461                 snprintf(buf, sizeof(buf), "%s/op_lcdrate.sh %d",\r
 462                          pnd_script_base, Pico.m.pal ? 50 : 60);\r
 463                 system(buf);\r
 464                 pal_old = Pico.m.pal;\r
 465         }\r
 466 \r
 467         if (currentConfig.filter != filter_old) {\r
 468                 apply_filter(currentConfig.filter);\r
 469                 filter_old = currentConfig.filter;\r
 470         }\r
 471 \r
 472         // make sure there is no junk left behind the layer\r
 473         memset32(g_menuscreen_ptr, 0, 800 * 480 * 2 / 4);\r
 474         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 475 \r
 476         // emu_video_mode_change will call pnd_setup_layer()\r
 477 \r
 478         // dirty buffers better go now than during gameplay\r
 479         sync();\r
 480         sleep(0);\r
 481 \r
 482         pemu_sound_start();\r
 483 }\r
 484 \r
 485 void pemu_loop_end(void)\r
 486 {\r
 487         int po_old = PicoOpt;\r
 488         int eo_old = currentConfig.EmuOpt;\r
 489 \r
 490         pemu_sound_stop();\r
 491         memset32(g_screen_ptr, 0, g_screen_width * g_screen_height * 2 / 4);\r
 492 \r
 493         /* do one more frame for menu bg */\r
 494         PicoOpt |= POPT_EN_SOFTSCALE|POPT_ACC_SPRITES;\r
 495         currentConfig.EmuOpt |= EOPT_16BPP;\r
 496 \r
 497         PicoDrawSetOutFormat(PDF_RGB555, 1);\r
 498         Pico.m.dirtyPal = 1;\r
 499         PicoFrame();\r
 500 \r
 501         // making a copy because enabling the layer clears it's mem\r
 502         memcpy32((void *)fb_copy, g_screen_ptr, sizeof(fb_copy) / 4);\r
 503         make_bg();\r
 504 \r
 505         pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 506 \r
 507         PicoOpt = po_old;\r
 508         currentConfig.EmuOpt = eo_old;\r
 509 }\r
 510 \r
 511 void plat_wait_till_us(unsigned int us_to)\r
 512 {\r
 513         unsigned int now;\r
 514         signed int diff;\r
 515 \r
 516         now = plat_get_ticks_us();\r
 517 \r
 518         // XXX: need to check NOHZ\r
 519         diff = (signed int)(us_to - now);\r
 520         if (diff > 10000) {\r
 521                 //printf("sleep %d\n", us_to - now);\r
 522                 usleep(diff * 15 / 16);\r
 523                 now = plat_get_ticks_us();\r
 524                 //printf(" wake %d\n", (signed)(us_to - now));\r
 525         }\r
 526 /*\r
 527         while ((signed int)(us_to - now) > 512) {\r
 528                 spend_cycles(1024);\r
 529                 now = plat_get_ticks_us();\r
 530         }\r
 531 */\r
 532 }\r
 533 \r
 534 const char *plat_get_credits(void)\r
 535 {\r
 536         return "PicoDrive v" VERSION " (c) notaz, 2006-2010\n\n\n"\r
 537                 "Credits:\n"\r
 538                 "fDave: Cyclone 68000 core,\n"\r
 539                 "      base code of PicoDrive\n"\r
 540                 "Reesy & FluBBa: DrZ80 core\n"\r
 541                 "MAME devs: YM2612 and SN76496 cores\n"\r
 542                 "Pandora team: Pandora\n"\r
 543                 "Inder, ketchupgun: graphics\n"\r
 544                 "\n"\r
 545                 "special thanks (for docs, ideas):\n"\r
 546                 " Charles MacDonald, Haze,\n"\r
 547                 " Stephane Dallongeville,\n"\r
 548                 " Lordus, Exophase, Rokas,\n"\r
 549                 " Nemesis, Tasco Deluxe";\r
 550 }\r
 551 \r
 552 #include "../linux/oshide.h"\r
 553 \r
 554 void plat_early_init(void)\r
 555 {\r
 556 }\r
 557 \r
 558 void plat_init(void)\r
 559 {\r
 560         const char *main_fb_name, *layer_fb_name;\r
 561         int fd, ret, w, h;\r
 562 \r
 563         main_fb_name = getenv("FBDEV_MAIN");\r
 564         if (main_fb_name == NULL)\r
 565                 main_fb_name = "/dev/fb0";\r
 566 \r
 567         layer_fb_name = getenv("FBDEV_LAYER");\r
 568         if (layer_fb_name == NULL)\r
 569                 layer_fb_name = "/dev/fb1";\r
 570 \r
 571         // must set the layer up first to be able to use it\r
 572         fd = open(layer_fb_name, O_RDWR);\r
 573         if (fd == -1) {\r
 574                 fprintf(stderr, "%s: ", layer_fb_name);\r
 575                 perror("open");\r
 576                 exit(1);\r
 577         }\r
 578 \r
 579         ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 580         close(fd);\r
 581         if (ret != 0) {\r
 582                 fprintf(stderr, "failed to set up layer, exiting.\n");\r
 583                 exit(1);\r
 584         }\r
 585 \r
 586         oshide_init();\r
 587 \r
 588         w = h = 0;\r
 589         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 0);\r
 590         if (main_fb == NULL) {\r
 591                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
 592                 exit(1);\r
 593         }\r
 594 \r
 595         if (w != g_menuscreen_w || h != g_menuscreen_h) {\r
 596                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, main_fb_name);\r
 597                 goto fail0;\r
 598         }\r
 599         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 600 \r
 601         w = 320; h = 240;\r
 602         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 0);\r
 603         if (layer_fb == NULL) {\r
 604                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
 605                 goto fail0;\r
 606         }\r
 607 \r
 608         if (w != g_screen_width || h != g_screen_height) {\r
 609                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
 610                 goto fail1;\r
 611         }\r
 612         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 613 \r
 614         g_menubg_ptr = temp_frame;\r
 615         g_menubg_src_ptr = temp_frame;\r
 616 \r
 617         sndout_oss_init();\r
 618         pnd_menu_init();\r
 619         return;\r
 620 \r
 621 fail1:\r
 622         vout_fbdev_finish(layer_fb);\r
 623 fail0:\r
 624         vout_fbdev_finish(main_fb);\r
 625         exit(1);\r
 626 }\r
 627 \r
 628 void plat_finish(void)\r
 629 {\r
 630         sndout_oss_exit();\r
 631         vout_fbdev_finish(main_fb);\r
 632         oshide_finish();\r
 633 \r
 634         printf("all done\n");\r
 635 }\r
 636 \r
 637 /* lprintf */\r
 638 void lprintf(const char *fmt, ...)\r
 639 {\r
 640         va_list vl;\r
 641 \r
 642         va_start(vl, fmt);\r
 643         vprintf(fmt, vl);\r
 644         va_end(vl);\r
 645 }\r
 646 \r