platform/pandora/plat.c

   1 /*\r
   2  * PicoDrive\r
   3  * (C) notaz, 2010,2011\r
   4  *\r
   5  * This work is licensed under the terms of MAME license.\r
   6  * See COPYING file in the top-level directory.\r
   7  */\r
   8 \r
   9 #include <stdio.h>\r
  10 #include <unistd.h>\r
  11 #include <sys/types.h>\r
  12 #include <sys/stat.h>\r
  13 #include <fcntl.h>\r
  14 #include <sys/ioctl.h>\r
  15 #include <unistd.h>\r
  16 #include <linux/fb.h>\r
  17 #include <linux/omapfb.h>\r
  18 #include <linux/input.h>\r
  19 \r
  20 #include "../common/emu.h"\r
  21 #include "../common/arm_utils.h"\r
  22 #include "../common/input_pico.h"\r
  23 #include "../common/version.h"\r
  24 #include "../libpicofe/input.h"\r
  25 #include "../libpicofe/menu.h"\r
  26 #include "../libpicofe/plat.h"\r
  27 #include "../libpicofe/linux/in_evdev.h"\r
  28 #include "../libpicofe/linux/sndout_oss.h"\r
  29 #include "../libpicofe/linux/fbdev.h"\r
  30 #include "../libpicofe/linux/xenv.h"\r
  31 #include "plat.h"\r
  32 #include "asm_utils.h"\r
  33 \r
  34 #include <pico/pico_int.h>\r
  35 \r
  36 #define LAYER_MEM_SIZE (320*240*2 * 4)\r
  37 \r
  38 static struct vout_fbdev *main_fb, *layer_fb;\r
  39 // g_layer_* - in use, g_layer_c* - configured custom\r
  40 int g_layer_cx, g_layer_cy, g_layer_cw, g_layer_ch;\r
  41 static int g_layer_x, g_layer_y;\r
  42 static int g_layer_w = 320, g_layer_h = 240;\r
  43 static int g_osd_fps_x, g_osd_y, doing_bg_frame;\r
  44 \r
  45 static unsigned char __attribute__((aligned(4))) fb_copy[320 * 240 * 2];\r
  46 static void *temp_frame;\r
  47 const char *renderer_names[] = { NULL };\r
  48 const char *renderer_names32x[] = { NULL };\r
  49 \r
  50 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {\r
  51         [0 ... KEY_MAX] = NULL,\r
  52         [KEY_UP]        = "Up",\r
  53         [KEY_LEFT]      = "Left",\r
  54         [KEY_RIGHT]     = "Right",\r
  55         [KEY_DOWN]      = "Down",\r
  56         [KEY_HOME]      = "A",\r
  57         [KEY_PAGEDOWN]  = "X",\r
  58         [KEY_END]       = "B",\r
  59         [KEY_PAGEUP]    = "Y",\r
  60         [KEY_RIGHTSHIFT]= "L",\r
  61         [KEY_RIGHTCTRL] = "R",\r
  62         [KEY_LEFTALT]   = "Start",\r
  63         [KEY_LEFTCTRL]  = "Select",\r
  64         [KEY_MENU]      = "Pandora",\r
  65 };\r
  66 \r
  67 static struct in_default_bind in_evdev_defbinds[] =\r
  68 {\r
  69         { KEY_UP,       IN_BINDTYPE_PLAYER12, GBTN_UP },\r
  70         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, GBTN_DOWN },\r
  71         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, GBTN_LEFT },\r
  72         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, GBTN_RIGHT },\r
  73         { KEY_A,        IN_BINDTYPE_PLAYER12, GBTN_A },\r
  74         { KEY_S,        IN_BINDTYPE_PLAYER12, GBTN_B },\r
  75         { KEY_D,        IN_BINDTYPE_PLAYER12, GBTN_C },\r
  76         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, GBTN_START },\r
  77         { KEY_R,        IN_BINDTYPE_EMU, PEVB_RESET },\r
  78         { KEY_F,        IN_BINDTYPE_EMU, PEVB_FF },\r
  79         { KEY_BACKSPACE,IN_BINDTYPE_EMU, PEVB_FF },\r
  80         { KEY_BACKSLASH,IN_BINDTYPE_EMU, PEVB_MENU },\r
  81         { KEY_SPACE,    IN_BINDTYPE_EMU, PEVB_MENU },\r
  82         { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },\r
  83         { KEY_HOME,     IN_BINDTYPE_PLAYER12, GBTN_A },\r
  84         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, GBTN_B },\r
  85         { KEY_END,      IN_BINDTYPE_PLAYER12, GBTN_C },\r
  86         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, GBTN_START },\r
  87         { KEY_1,        IN_BINDTYPE_EMU, PEVB_STATE_SAVE },\r
  88         { KEY_2,        IN_BINDTYPE_EMU, PEVB_STATE_LOAD },\r
  89         { KEY_3,        IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },\r
  90         { KEY_4,        IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },\r
  91         { KEY_5,        IN_BINDTYPE_EMU, PEVB_PICO_PPREV },\r
  92         { KEY_6,        IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },\r
  93         { KEY_7,        IN_BINDTYPE_EMU, PEVB_PICO_SWINP },\r
  94         { 0, 0, 0 }\r
  95 };\r
  96 \r
  97 static const struct menu_keymap key_pbtn_map[] =\r
  98 {\r
  99         { KEY_UP,       PBTN_UP },\r
 100         { KEY_DOWN,     PBTN_DOWN },\r
 101         { KEY_LEFT,     PBTN_LEFT },\r
 102         { KEY_RIGHT,    PBTN_RIGHT },\r
 103         /* Pandora */\r
 104         { KEY_END,      PBTN_MOK },\r
 105         { KEY_PAGEDOWN, PBTN_MBACK },\r
 106         { KEY_HOME,     PBTN_MA2 },\r
 107         { KEY_PAGEUP,   PBTN_MA3 },\r
 108         { KEY_LEFTCTRL,   PBTN_MENU },\r
 109         { KEY_RIGHTSHIFT, PBTN_L },\r
 110         { KEY_RIGHTCTRL,  PBTN_R },\r
 111         /* "normal" keyboards */\r
 112         { KEY_ENTER,    PBTN_MOK },\r
 113         { KEY_ESC,      PBTN_MBACK },\r
 114         { KEY_SEMICOLON,  PBTN_MA2 },\r
 115         { KEY_APOSTROPHE, PBTN_MA3 },\r
 116         { KEY_BACKSLASH,  PBTN_MENU },\r
 117         { KEY_LEFTBRACE,  PBTN_L },\r
 118         { KEY_RIGHTBRACE, PBTN_R },\r
 119 };\r
 120 \r
 121 static const struct in_pdata pandora_evdev_pdata = {\r
 122         .defbinds = in_evdev_defbinds,\r
 123         .key_map = key_pbtn_map,\r
 124         .kmap_size = sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]),\r
 125 };\r
 126 \r
 127 void pemu_prep_defconfig(void)\r
 128 {\r
 129         defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
 130         defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;\r
 131         defaultConfig.scaling = SCALE_2x2_3x2;\r
 132 }\r
 133 \r
 134 void pemu_validate_config(void)\r
 135 {\r
 136         currentConfig.CPUclock = plat_target_cpu_clock_get();\r
 137 }\r
 138 \r
 139 static void draw_cd_leds(void)\r
 140 {\r
 141         int old_reg;\r
 142         old_reg = Pico_mcd->s68k_regs[0];\r
 143 \r
 144         if (0) {\r
 145                 // 8-bit modes\r
 146                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 147                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 148                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
 149                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
 150                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
 151                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
 152                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
 153                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
 154         } else {\r
 155                 // 16-bit modes\r
 156                 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
 157                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 158                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 159                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 160                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 161                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 162         }\r
 163 }\r
 164 \r
 165 void pemu_finalize_frame(const char *fps, const char *notice)\r
 166 {\r
 167         if (notice && notice[0])\r
 168                 emu_osd_text16(2, g_osd_y, notice);\r
 169         if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))\r
 170                 emu_osd_text16(g_osd_fps_x, g_osd_y, fps);\r
 171         if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
 172                 draw_cd_leds();\r
 173 }\r
 174 \r
 175 void plat_video_flip(void)\r
 176 {\r
 177         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 178         PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
 179 \r
 180         // XXX: drain OS event queue here, maybe we'll actually use it someday..\r
 181         xenv_update(NULL, NULL, NULL, NULL);\r
 182 }\r
 183 \r
 184 void plat_video_toggle_renderer(int change, int is_menu)\r
 185 {\r
 186 }\r
 187 \r
 188 void plat_video_menu_enter(int is_rom_loaded)\r
 189 {\r
 190 }\r
 191 \r
 192 void plat_video_menu_begin(void)\r
 193 {\r
 194 }\r
 195 \r
 196 void plat_video_menu_end(void)\r
 197 {\r
 198         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 199 }\r
 200 \r
 201 void plat_video_menu_leave(void)\r
 202 {\r
 203 }\r
 204 \r
 205 void plat_video_wait_vsync(void)\r
 206 {\r
 207         vout_fbdev_wait_vsync(main_fb);\r
 208 }\r
 209 \r
 210 void plat_status_msg_clear(void)\r
 211 {\r
 212         vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
 213 }\r
 214 \r
 215 void plat_status_msg_busy_next(const char *msg)\r
 216 {\r
 217         plat_status_msg_clear();\r
 218         pemu_finalize_frame("", msg);\r
 219         plat_video_flip();\r
 220         emu_status_msg("");\r
 221         reset_timing = 1;\r
 222 }\r
 223 \r
 224 void plat_status_msg_busy_first(const char *msg)\r
 225 {\r
 226         plat_status_msg_busy_next(msg);\r
 227 }\r
 228 \r
 229 void plat_update_volume(int has_changed, int is_up)\r
 230 {\r
 231 }\r
 232 \r
 233 void pemu_forced_frame(int no_scale, int do_emu)\r
 234 {\r
 235         doing_bg_frame = 1;\r
 236         emu_cmn_forced_frame(no_scale, do_emu);\r
 237         doing_bg_frame = 0;\r
 238 \r
 239         // making a copy because enabling the layer clears it's mem\r
 240         memcpy((void *)fb_copy, g_screen_ptr, sizeof(fb_copy));\r
 241         g_menubg_src_ptr = fb_copy;\r
 242 }\r
 243 \r
 244 void pemu_sound_start(void)\r
 245 {\r
 246         emu_sound_start();\r
 247 }\r
 248 \r
 249 void plat_debug_cat(char *str)\r
 250 {\r
 251 }\r
 252 \r
 253 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
 254 {\r
 255         struct omapfb_plane_info pi;\r
 256         struct omapfb_mem_info mi;\r
 257         int is_enabled;\r
 258         int retval = 0;\r
 259         int ret;\r
 260 \r
 261         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
 262         if (ret != 0) {\r
 263                 perror("QUERY_PLANE");\r
 264                 return -1;\r
 265         }\r
 266 \r
 267         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
 268         if (ret != 0) {\r
 269                 perror("QUERY_MEM");\r
 270                 return -1;\r
 271         }\r
 272 \r
 273         /* must disable when changing stuff */\r
 274         is_enabled = pi.enabled;\r
 275         if (is_enabled) {\r
 276                 pi.enabled = 0;\r
 277                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 278                 if (ret != 0)\r
 279                         perror("SETUP_PLANE");\r
 280                 else\r
 281                         is_enabled = 0;\r
 282         }\r
 283 \r
 284         if (mi.size < LAYER_MEM_SIZE) {\r
 285                 unsigned int size_old = mi.size;\r
 286 \r
 287                 mi.size = LAYER_MEM_SIZE;\r
 288                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
 289                 if (ret != 0) {\r
 290                         perror("SETUP_MEM");\r
 291                         fprintf(stderr, "(requested %u, had %u)\n",\r
 292                                 mi.size, size_old);\r
 293                         return -1;\r
 294                 }\r
 295         }\r
 296 \r
 297         pi.pos_x = x;\r
 298         pi.pos_y = y;\r
 299         pi.out_width = w;\r
 300         pi.out_height = h;\r
 301         pi.enabled = enabled;\r
 302 \r
 303         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 304         if (ret == 0) {\r
 305                 is_enabled = pi.enabled;\r
 306         }\r
 307         else {\r
 308                 perror("SETUP_PLANE");\r
 309                 retval = -1;\r
 310         }\r
 311 \r
 312         plat_target_switch_layer(1, is_enabled);\r
 313 \r
 314         return retval;\r
 315 }\r
 316 \r
 317 int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
 318 {\r
 319         return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
 320 }\r
 321 \r
 322 void pnd_restore_layer_data(void)\r
 323 {\r
 324         short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
 325 \r
 326         // right now this is used by menu, which wants to preview something\r
 327         // so try to get something on the layer.\r
 328         if ((t[0] | t[5] | t[13]) == 0)\r
 329                 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
 330 \r
 331         memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);\r
 332         plat_video_flip();\r
 333 }\r
 334 \r
 335 void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
 336 {\r
 337         int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
 338 \r
 339         if (doing_bg_frame)\r
 340                 return;\r
 341 \r
 342         if (is_32cols) {\r
 343                 fb_w = 256;\r
 344                 fb_left = fb_right = 32;\r
 345         }\r
 346 \r
 347         switch (currentConfig.scaling) {\r
 348         case SCALE_1x1:\r
 349                 g_layer_w = fb_w;\r
 350                 g_layer_h = fb_h;\r
 351                 break;\r
 352         case SCALE_2x2_3x2:\r
 353                 g_layer_w = fb_w * (is_32cols ? 3 : 2);\r
 354                 g_layer_h = fb_h * 2;\r
 355                 break;\r
 356         case SCALE_2x2_2x2:\r
 357                 g_layer_w = fb_w * 2;\r
 358                 g_layer_h = fb_h * 2;\r
 359                 break;\r
 360         case SCALE_FULLSCREEN:\r
 361                 g_layer_w = 800;\r
 362                 g_layer_h = 480;\r
 363                 break;\r
 364         case SCALE_CUSTOM:\r
 365                 g_layer_x = g_layer_cx;\r
 366                 g_layer_y = g_layer_cy;\r
 367                 g_layer_w = g_layer_cw;\r
 368                 g_layer_h = g_layer_ch;\r
 369                 break;\r
 370         }\r
 371 \r
 372         if (currentConfig.scaling != SCALE_CUSTOM) {\r
 373                 // center the layer\r
 374                 g_layer_x = 800 / 2 - g_layer_w / 2;\r
 375                 g_layer_y = 480 / 2 - g_layer_h / 2;\r
 376         }\r
 377 \r
 378         switch (currentConfig.scaling) {\r
 379         case SCALE_FULLSCREEN:\r
 380         case SCALE_CUSTOM:\r
 381                 fb_top = start_line;\r
 382                 fb_h = line_count;\r
 383                 break;\r
 384         }\r
 385         g_osd_fps_x = is_32cols ? 232 : 264;\r
 386         g_osd_y = fb_top + fb_h - 8;\r
 387 \r
 388         pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 389         vout_fbdev_clear(layer_fb);\r
 390         vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4);\r
 391         plat_video_flip();\r
 392 \r
 393         PicoDrawSetOutFormat(PDF_RGB555, 0);\r
 394 }\r
 395 \r
 396 void plat_video_loop_prepare(void)\r
 397 {\r
 398         // make sure there is no junk left behind the layer\r
 399         memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);\r
 400         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 401 \r
 402         // emu_video_mode_change will call pnd_setup_layer()\r
 403 }\r
 404 \r
 405 void pemu_loop_prep(void)\r
 406 {\r
 407         // dirty buffers better go now than during gameplay\r
 408         fflush(stdout);\r
 409         fflush(stderr);\r
 410         sync();\r
 411         sleep(0);\r
 412 }\r
 413 \r
 414 void pemu_loop_end(void)\r
 415 {\r
 416         /* do one more frame for menu bg */\r
 417         pemu_forced_frame(0, 1);\r
 418 \r
 419         pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 420 }\r
 421 \r
 422 void plat_wait_till_us(unsigned int us_to)\r
 423 {\r
 424         unsigned int now;\r
 425         signed int diff;\r
 426 \r
 427         now = plat_get_ticks_us();\r
 428 \r
 429         // XXX: need to check NOHZ\r
 430         diff = (signed int)(us_to - now);\r
 431         if (diff > 10000) {\r
 432                 //printf("sleep %d\n", us_to - now);\r
 433                 usleep(diff * 15 / 16);\r
 434                 now = plat_get_ticks_us();\r
 435                 //printf(" wake %d\n", (signed)(us_to - now));\r
 436         }\r
 437 /*\r
 438         while ((signed int)(us_to - now) > 512) {\r
 439                 spend_cycles(1024);\r
 440                 now = plat_get_ticks_us();\r
 441         }\r
 442 */\r
 443 }\r
 444 \r
 445 void plat_early_init(void)\r
 446 {\r
 447 }\r
 448 \r
 449 void plat_init(void)\r
 450 {\r
 451         const char *main_fb_name, *layer_fb_name;\r
 452         int fd, ret, w, h;\r
 453 \r
 454         main_fb_name = getenv("FBDEV_MAIN");\r
 455         if (main_fb_name == NULL)\r
 456                 main_fb_name = "/dev/fb0";\r
 457 \r
 458         layer_fb_name = getenv("FBDEV_LAYER");\r
 459         if (layer_fb_name == NULL)\r
 460                 layer_fb_name = "/dev/fb1";\r
 461 \r
 462         // must set the layer up first to be able to use it\r
 463         fd = open(layer_fb_name, O_RDWR);\r
 464         if (fd == -1) {\r
 465                 fprintf(stderr, "%s: ", layer_fb_name);\r
 466                 perror("open");\r
 467                 exit(1);\r
 468         }\r
 469 \r
 470         ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 471         close(fd);\r
 472         if (ret != 0) {\r
 473                 fprintf(stderr, "failed to set up layer, exiting.\n");\r
 474                 exit(1);\r
 475         }\r
 476 \r
 477         xenv_init(NULL, "PicoDrive " VERSION);\r
 478 \r
 479         w = h = 0;\r
 480         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);\r
 481         if (main_fb == NULL) {\r
 482                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
 483                 exit(1);\r
 484         }\r
 485 \r
 486         g_menuscreen_w = w;\r
 487         g_menuscreen_h = h;\r
 488         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 489 \r
 490         w = 320; h = 240;\r
 491         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);\r
 492         if (layer_fb == NULL) {\r
 493                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
 494                 goto fail0;\r
 495         }\r
 496 \r
 497         if (w != g_screen_width || h != g_screen_height) {\r
 498                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
 499                 goto fail1;\r
 500         }\r
 501         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 502 \r
 503         temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);\r
 504         if (temp_frame == NULL) {\r
 505                 fprintf(stderr, "OOM\n");\r
 506                 goto fail1;\r
 507         }\r
 508         g_menubg_ptr = temp_frame;\r
 509         g_menubg_src_ptr = temp_frame;\r
 510 \r
 511         pnd_menu_init();\r
 512 \r
 513         // default ROM path\r
 514         strcpy(rom_fname_loaded, "/media");\r
 515 \r
 516         in_evdev_init(&pandora_evdev_pdata);\r
 517         in_probe();\r
 518         plat_target_setup_input();\r
 519 \r
 520         sndout_oss_frag_frames = 2;\r
 521 \r
 522         return;\r
 523 \r
 524 fail1:\r
 525         vout_fbdev_finish(layer_fb);\r
 526 fail0:\r
 527         vout_fbdev_finish(main_fb);\r
 528         exit(1);\r
 529 }\r
 530 \r
 531 void plat_finish(void)\r
 532 {\r
 533         vout_fbdev_finish(main_fb);\r
 534         xenv_finish();\r
 535 \r
 536         printf("all done\n");\r
 537 }\r
 538 \r