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/keyboard.h"\r
  24 #include "../common/version.h"\r
  25 #include "../libpicofe/input.h"\r
  26 #include "../libpicofe/menu.h"\r
  27 #include "../libpicofe/plat.h"\r
  28 #include "../libpicofe/linux/in_evdev.h"\r
  29 #include "../libpicofe/linux/sndout_oss.h"\r
  30 #include "../libpicofe/linux/fbdev.h"\r
  31 #include "../libpicofe/linux/xenv.h"\r
  32 #include "plat.h"\r
  33 #include "asm_utils.h"\r
  34 \r
  35 #include <pico/pico_int.h>\r
  36 \r
  37 #define LAYER_MEM_SIZE (320*240*2 * 4)\r
  38 \r
  39 static struct vout_fbdev *main_fb, *layer_fb;\r
  40 // g_layer_* - in use, g_layer_c* - configured custom\r
  41 int g_layer_cx = 80, g_layer_cy, g_layer_cw = 640, g_layer_ch = 480;\r
  42 int saved_start_line = 0, saved_line_count = 240;\r
  43 int saved_start_col = 0, saved_col_count = 320;\r
  44 static int g_layer_x, g_layer_y;\r
  45 static int g_layer_w = 320, g_layer_h = 240;\r
  46 static int g_osd_start_x, g_osd_fps_x, g_osd_y, doing_bg_frame;\r
  47 \r
  48 static unsigned char __attribute__((aligned(4))) fb_copy[320 * 240 * 2];\r
  49 static void *temp_frame;\r
  50 const char *renderer_names[] = { NULL };\r
  51 const char *renderer_names32x[] = { NULL };\r
  52 \r
  53 static struct in_default_bind in_evdev_defbinds[] =\r
  54 {\r
  55         { KEY_UP,       IN_BINDTYPE_PLAYER12, GBTN_UP },\r
  56         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, GBTN_DOWN },\r
  57         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, GBTN_LEFT },\r
  58         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, GBTN_RIGHT },\r
  59         { KEY_A,        IN_BINDTYPE_PLAYER12, GBTN_A },\r
  60         { KEY_S,        IN_BINDTYPE_PLAYER12, GBTN_B },\r
  61         { KEY_D,        IN_BINDTYPE_PLAYER12, GBTN_C },\r
  62         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, GBTN_START },\r
  63         { KEY_R,        IN_BINDTYPE_EMU, PEVB_RESET },\r
  64         { KEY_F,        IN_BINDTYPE_EMU, PEVB_FF },\r
  65         { KEY_BACKSPACE,IN_BINDTYPE_EMU, PEVB_FF },\r
  66         { KEY_BACKSLASH,IN_BINDTYPE_EMU, PEVB_MENU },\r
  67         { KEY_SPACE,    IN_BINDTYPE_EMU, PEVB_MENU },\r
  68         { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },\r
  69         { KEY_HOME,     IN_BINDTYPE_PLAYER12, GBTN_A },\r
  70         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, GBTN_B },\r
  71         { KEY_END,      IN_BINDTYPE_PLAYER12, GBTN_C },\r
  72         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, GBTN_START },\r
  73         { KEY_1,        IN_BINDTYPE_EMU, PEVB_STATE_SAVE },\r
  74         { KEY_2,        IN_BINDTYPE_EMU, PEVB_STATE_LOAD },\r
  75         { KEY_3,        IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },\r
  76         { KEY_4,        IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },\r
  77         { KEY_5,        IN_BINDTYPE_EMU, PEVB_PICO_PPREV },\r
  78         { KEY_6,        IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },\r
  79         { KEY_7,        IN_BINDTYPE_EMU, PEVB_PICO_STORY },\r
  80         { KEY_8,        IN_BINDTYPE_EMU, PEVB_PICO_PAD },\r
  81         { 0, 0, 0 }\r
  82 };\r
  83 \r
  84 static const struct menu_keymap key_pbtn_map[] =\r
  85 {\r
  86         { KEY_UP,       PBTN_UP },\r
  87         { KEY_DOWN,     PBTN_DOWN },\r
  88         { KEY_LEFT,     PBTN_LEFT },\r
  89         { KEY_RIGHT,    PBTN_RIGHT },\r
  90         /* Pandora */\r
  91         { KEY_END,      PBTN_MOK },\r
  92         { KEY_PAGEDOWN, PBTN_MBACK },\r
  93         { KEY_HOME,     PBTN_MA2 },\r
  94         { KEY_PAGEUP,   PBTN_MA3 },\r
  95         { KEY_LEFTCTRL,   PBTN_MENU },\r
  96         { KEY_RIGHTSHIFT, PBTN_L },\r
  97         { KEY_RIGHTCTRL,  PBTN_R },\r
  98         /* "normal" keyboards */\r
  99         { KEY_ENTER,    PBTN_MOK },\r
 100         { KEY_ESC,      PBTN_MBACK },\r
 101         { KEY_SEMICOLON,  PBTN_MA2 },\r
 102         { KEY_APOSTROPHE, PBTN_MA3 },\r
 103         { KEY_BACKSLASH,  PBTN_MENU },\r
 104         { KEY_LEFTBRACE,  PBTN_L },\r
 105         { KEY_RIGHTBRACE, PBTN_R },\r
 106 };\r
 107 \r
 108 static const struct in_pdata pandora_evdev_pdata = {\r
 109         .defbinds = in_evdev_defbinds,\r
 110         .key_map = key_pbtn_map,\r
 111         .kmap_size = sizeof(key_pbtn_map) / sizeof(key_pbtn_map[0]),\r
 112 };\r
 113 \r
 114 void pemu_prep_defconfig(void)\r
 115 {\r
 116         defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
 117         defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;\r
 118         defaultConfig.scaling = SCALE_2x2_3x2;\r
 119 }\r
 120 \r
 121 void pemu_validate_config(void)\r
 122 {\r
 123         currentConfig.CPUclock = plat_target_cpu_clock_get();\r
 124 }\r
 125 \r
 126 static void draw_cd_leds(void)\r
 127 {\r
 128         int old_reg;\r
 129         old_reg = Pico_mcd->s68k_regs[0];\r
 130 \r
 131         // 16-bit modes\r
 132         unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
 133         unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 134         unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 135         *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 136         *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 137         *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 138 }\r
 139 \r
 140 static void draw_pico_ptr(void)\r
 141 {\r
 142         int up = (PicoPicohw.pen_pos[0]|PicoPicohw.pen_pos[1]) & 0x8000;\r
 143         int o = (up ? 0x0000 : 0xffff), _ = (up ? 0xffff : 0x0000);\r
 144         int x = pico_pen_x, y = pico_pen_y, pitch = g_screen_ppitch;\r
 145         unsigned short *p = (unsigned short *)g_screen_ptr;\r
 146         // storyware pages are actually squished, 2:1\r
 147         int h = (pico_inp_mode == 1 ? 160 : saved_line_count);\r
 148         if (h < 224) y++;\r
 149 \r
 150         x = (x * saved_col_count * ((1ULL<<32) / 320 + 1)) >> 32;\r
 151         y = (y * h               * ((1ULL<<32) / 224 + 1)) >> 32;\r
 152         p += (saved_start_col+x) + (saved_start_line+y) * pitch;\r
 153 \r
 154         p[-pitch-1] ^= o; p[-pitch] ^= _; p[-pitch+1] ^= _; p[-pitch+2] ^= o;\r
 155         p[-1]       ^= _; p[0]      ^= o; p[1]        ^= o; p[2]        ^= _;\r
 156         p[pitch-1]  ^= _; p[pitch]  ^= o; p[pitch+1]  ^= o; p[pitch+2]  ^= _;\r
 157         p[2*pitch-1]^= o; p[2*pitch]^= _; p[2*pitch+1]^= _; p[2*pitch+2]^= o;\r
 158 }\r
 159 \r
 160 void pemu_finalize_frame(const char *fps, const char *notice)\r
 161 {\r
 162         if (PicoIn.AHW & PAHW_PICO) {\r
 163                 int h = saved_line_count, w = saved_col_count;\r
 164                 u16 *pd = g_screen_ptr + saved_start_line*g_screen_ppitch\r
 165                                         + saved_start_col;\r
 166 \r
 167                 if (pico_inp_mode)\r
 168                         emu_pico_overlay(pd, w, h, g_screen_ppitch);\r
 169                 if (pico_inp_mode /*== 2 || overlay*/)\r
 170                         draw_pico_ptr();\r
 171         }\r
 172         if (notice && notice[0])\r
 173                 emu_osd_text16(2 + g_osd_start_x, g_osd_y, notice);\r
 174         if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS)) {\r
 175                 const char *p;\r
 176                 // avoid wrapping when fps is very high\r
 177                 if (fps[5] != ' ' && (p = strchr(fps, '/')))\r
 178                         fps = p;\r
 179                 emu_osd_text16(g_osd_fps_x, g_osd_y, fps);\r
 180         }\r
 181         if ((PicoIn.AHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
 182                 draw_cd_leds();\r
 183         // draw virtual keyboard on display\r
 184         if (kbd_mode && currentConfig.keyboard == 1 && vkbd)\r
 185                 vkbd_draw(vkbd);\r
 186 }\r
 187 \r
 188 void plat_video_flip(void)\r
 189 {\r
 190         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 191         PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
 192 \r
 193         // XXX: drain OS event queue here, maybe we'll actually use it someday..\r
 194         xenv_update(NULL, NULL, NULL, NULL);\r
 195 }\r
 196 \r
 197 void plat_video_clear_buffers(void)\r
 198 {\r
 199         vout_fbdev_clear(layer_fb);\r
 200 }\r
 201 \r
 202 // pnd doesn't use multiple renderers, but we have to handle this since it's\r
 203 // called on 32x enable and PicoDrawSetOutFormat() sets up the 32x layers\r
 204 void plat_video_toggle_renderer(int change, int is_menu)\r
 205 {\r
 206         if (!is_menu)\r
 207                 PicoDrawSetOutFormat(PDF_RGB555, 0);\r
 208 }\r
 209 \r
 210 void plat_video_menu_update(void)\r
 211 {\r
 212 }\r
 213 \r
 214 void plat_video_menu_enter(int is_rom_loaded)\r
 215 {\r
 216 }\r
 217 \r
 218 void plat_video_menu_begin(void)\r
 219 {\r
 220 }\r
 221 \r
 222 void plat_video_menu_end(void)\r
 223 {\r
 224         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 225 }\r
 226 \r
 227 void plat_video_menu_leave(void)\r
 228 {\r
 229 }\r
 230 \r
 231 void plat_video_wait_vsync(void)\r
 232 {\r
 233         vout_fbdev_wait_vsync(main_fb);\r
 234 }\r
 235 \r
 236 void plat_status_msg_clear(void)\r
 237 {\r
 238         vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
 239 }\r
 240 \r
 241 void plat_status_msg_busy_next(const char *msg)\r
 242 {\r
 243         plat_status_msg_clear();\r
 244         pemu_finalize_frame("", msg);\r
 245         plat_video_flip();\r
 246         emu_status_msg("");\r
 247         reset_timing = 1;\r
 248 }\r
 249 \r
 250 void plat_status_msg_busy_first(const char *msg)\r
 251 {\r
 252         plat_status_msg_busy_next(msg);\r
 253 }\r
 254 \r
 255 void plat_status_msg_busy_done(void)\r
 256 {\r
 257 }\r
 258 \r
 259 void plat_update_volume(int has_changed, int is_up)\r
 260 {\r
 261 }\r
 262 \r
 263 void pemu_forced_frame(int no_scale, int do_emu)\r
 264 {\r
 265         doing_bg_frame = 1;\r
 266         // making a copy because enabling the layer clears it's mem\r
 267         emu_cmn_forced_frame(no_scale, do_emu, fb_copy);\r
 268         doing_bg_frame = 0;\r
 269 \r
 270         g_menubg_src_ptr = fb_copy;\r
 271 }\r
 272 \r
 273 void pemu_sound_start(void)\r
 274 {\r
 275         emu_sound_start();\r
 276 }\r
 277 \r
 278 void plat_debug_cat(char *str)\r
 279 {\r
 280 }\r
 281 \r
 282 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
 283 {\r
 284         struct omapfb_plane_info pi;\r
 285         struct omapfb_mem_info mi;\r
 286         int is_enabled;\r
 287         int retval = 0;\r
 288         int ret;\r
 289 \r
 290         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
 291         if (ret != 0) {\r
 292                 perror("QUERY_PLANE");\r
 293                 return -1;\r
 294         }\r
 295 \r
 296         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
 297         if (ret != 0) {\r
 298                 perror("QUERY_MEM");\r
 299                 return -1;\r
 300         }\r
 301 \r
 302         /* must disable when changing stuff */\r
 303         is_enabled = pi.enabled;\r
 304         if (is_enabled) {\r
 305                 pi.enabled = 0;\r
 306                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 307                 if (ret != 0)\r
 308                         perror("SETUP_PLANE");\r
 309                 else\r
 310                         is_enabled = 0;\r
 311         }\r
 312 \r
 313         if (mi.size < LAYER_MEM_SIZE) {\r
 314                 unsigned int size_old = mi.size;\r
 315 \r
 316                 mi.size = LAYER_MEM_SIZE;\r
 317                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
 318                 if (ret != 0) {\r
 319                         perror("SETUP_MEM");\r
 320                         fprintf(stderr, "(requested %u, had %u)\n",\r
 321                                 mi.size, size_old);\r
 322                         return -1;\r
 323                 }\r
 324         }\r
 325 \r
 326         pi.pos_x = x;\r
 327         pi.pos_y = y;\r
 328         pi.out_width = w;\r
 329         pi.out_height = h;\r
 330         pi.enabled = enabled;\r
 331 \r
 332         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 333         if (ret == 0) {\r
 334                 is_enabled = pi.enabled;\r
 335         }\r
 336         else {\r
 337                 perror("SETUP_PLANE");\r
 338                 retval = -1;\r
 339         }\r
 340 \r
 341         plat_target_switch_layer(1, is_enabled);\r
 342 \r
 343         return retval;\r
 344 }\r
 345 \r
 346 int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
 347 {\r
 348         // it's not allowed for the layer to be partially offscreen,\r
 349         // instead it is faked by emu_video_mode_change()\r
 350         if (x < 0) { w += x; x = 0; }\r
 351         if (y < 0) { h += y; y = 0; }\r
 352         if (x + w > 800) w = 800 - x;\r
 353         if (y + h > 480) h = 480 - y;\r
 354 \r
 355         return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
 356 }\r
 357 \r
 358 void pnd_restore_layer_data(void)\r
 359 {\r
 360         short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
 361 \r
 362         // right now this is used by menu, which wants to preview something\r
 363         // so try to get something on the layer.\r
 364         if ((t[0] | t[5] | t[13]) == 0)\r
 365                 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
 366 \r
 367         memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);\r
 368         plat_video_flip();\r
 369 }\r
 370 \r
 371 void emu_video_mode_change(int start_line, int line_count, int start_col, int col_count)\r
 372 {\r
 373         int fb_w, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
 374 \r
 375         if (doing_bg_frame)\r
 376                 return;\r
 377 \r
 378         switch (currentConfig.scaling) {\r
 379         case SCALE_1x1:\r
 380                 g_layer_w = col_count;\r
 381                 g_layer_h = fb_h;\r
 382                 break;\r
 383         case SCALE_2x2_3x2:\r
 384                 g_layer_w = col_count * (col_count < 320 ? 3 : 2);\r
 385                 g_layer_h = fb_h * 2;\r
 386                 break;\r
 387         case SCALE_2x2_2x2:\r
 388                 g_layer_w = col_count * 2;\r
 389                 g_layer_h = fb_h * 2;\r
 390                 break;\r
 391         case SCALE_FULLSCREEN:\r
 392                 g_layer_w = 800;\r
 393                 g_layer_h = 480;\r
 394                 break;\r
 395         case SCALE_CUSTOM:\r
 396                 g_layer_x = g_layer_cx;\r
 397                 g_layer_y = g_layer_cy;\r
 398                 g_layer_w = g_layer_cw;\r
 399                 g_layer_h = g_layer_ch;\r
 400                 break;\r
 401         }\r
 402 \r
 403         if (currentConfig.scaling != SCALE_CUSTOM) {\r
 404                 // center the layer\r
 405                 g_layer_x = 800 / 2 - g_layer_w / 2;\r
 406                 g_layer_y = 480 / 2 - g_layer_h / 2;\r
 407         }\r
 408 \r
 409         switch (currentConfig.scaling) {\r
 410         case SCALE_FULLSCREEN:\r
 411         case SCALE_CUSTOM:\r
 412                 fb_top = start_line;\r
 413                 fb_h = start_line + line_count;\r
 414                 break;\r
 415         }\r
 416         fb_w = 320;\r
 417         fb_left = start_col;\r
 418         fb_right = 320 - (start_col + col_count);\r
 419         if (currentConfig.scaling == SCALE_CUSTOM) {\r
 420                 int right = g_layer_x + g_layer_w;\r
 421                 int bottom = g_layer_y + g_layer_h;\r
 422                 if (g_layer_x < 0)\r
 423                         fb_left += -g_layer_x * col_count / g_menuscreen_w;\r
 424                 if (g_layer_y < 0)\r
 425                         fb_top += -g_layer_y * line_count / g_menuscreen_h;\r
 426                 if (right > g_menuscreen_w)\r
 427                         fb_right += (right - g_menuscreen_w) * col_count / g_menuscreen_w;\r
 428                 if (bottom > g_menuscreen_h)\r
 429                         fb_bottom += (bottom - g_menuscreen_h) * line_count / g_menuscreen_h;\r
 430         }\r
 431         fb_w -= fb_left + fb_right;\r
 432         fb_h -= fb_top + fb_bottom;\r
 433 \r
 434         pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 435         vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4, 0);\r
 436         vout_fbdev_clear(layer_fb);\r
 437         plat_video_flip();\r
 438 \r
 439         g_osd_start_x = start_col;\r
 440         g_osd_fps_x = start_col + col_count - 5*8 - 2;\r
 441         g_osd_y = fb_top + fb_h - 8;\r
 442 \r
 443         saved_start_line = start_line, saved_line_count = line_count;\r
 444         saved_start_col = start_col, saved_col_count = col_count;\r
 445 }\r
 446 \r
 447 void plat_video_loop_prepare(void)\r
 448 {\r
 449         // make sure there is no junk left behind the layer\r
 450         memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);\r
 451         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 452 \r
 453         PicoDrawSetOutFormat(PDF_RGB555, 0);\r
 454         // emu_video_mode_change will call pnd_setup_layer()\r
 455 }\r
 456 \r
 457 void plat_show_cursor(int on)\r
 458 {\r
 459 }\r
 460 \r
 461 int plat_grab_cursor(int on)\r
 462 {\r
 463         return 0;\r
 464 }\r
 465 \r
 466 int plat_has_wm(void)\r
 467 {\r
 468         return 0;\r
 469 }\r
 470 \r
 471 void pemu_loop_prep(void)\r
 472 {\r
 473         // dirty buffers better go now than during gameplay\r
 474         fflush(stdout);\r
 475         fflush(stderr);\r
 476         sync();\r
 477         sleep(0);\r
 478 }\r
 479 \r
 480 void pemu_loop_end(void)\r
 481 {\r
 482         memset(fb_copy, 0, sizeof(fb_copy));\r
 483         /* do one more frame for menu bg */\r
 484         pemu_forced_frame(0, 1);\r
 485 \r
 486         pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 487 }\r
 488 \r
 489 void plat_wait_till_us(unsigned int us_to)\r
 490 {\r
 491         unsigned int now;\r
 492         signed int diff;\r
 493 \r
 494         now = plat_get_ticks_us();\r
 495 \r
 496         // XXX: need to check NOHZ\r
 497         diff = (signed int)(us_to - now);\r
 498         if (diff > 10000) {\r
 499                 //printf("sleep %d\n", us_to - now);\r
 500                 usleep(diff * 15 / 16);\r
 501                 now = plat_get_ticks_us();\r
 502                 //printf(" wake %d\n", (signed)(us_to - now));\r
 503         }\r
 504 /*\r
 505         while ((signed int)(us_to - now) > 512) {\r
 506                 spend_cycles(1024);\r
 507                 now = plat_get_ticks_us();\r
 508         }\r
 509 */\r
 510 }\r
 511 \r
 512 void *plat_mem_get_for_drc(size_t size)\r
 513 {\r
 514         return NULL;\r
 515 }\r
 516 \r
 517 int plat_parse_arg(int argc, char *argv[], int *x)\r
 518 {\r
 519         return 1;\r
 520 }\r
 521 \r
 522 void plat_early_init(void)\r
 523 {\r
 524 }\r
 525 \r
 526 void plat_init(void)\r
 527 {\r
 528         const char *main_fb_name, *layer_fb_name;\r
 529         int fd, ret, w, h;\r
 530 \r
 531         main_fb_name = getenv("FBDEV_MAIN");\r
 532         if (main_fb_name == NULL)\r
 533                 main_fb_name = "/dev/fb0";\r
 534 \r
 535         layer_fb_name = getenv("FBDEV_LAYER");\r
 536         if (layer_fb_name == NULL)\r
 537                 layer_fb_name = "/dev/fb1";\r
 538 \r
 539         // must set the layer up first to be able to use it\r
 540         fd = open(layer_fb_name, O_RDWR);\r
 541         if (fd == -1) {\r
 542                 fprintf(stderr, "%s: ", layer_fb_name);\r
 543                 perror("open");\r
 544                 exit(1);\r
 545         }\r
 546 \r
 547         ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 548         close(fd);\r
 549         if (ret != 0) {\r
 550                 fprintf(stderr, "failed to set up layer, exiting.\n");\r
 551                 exit(1);\r
 552         }\r
 553 \r
 554         xenv_init(NULL, "PicoDrive " VERSION);\r
 555 \r
 556         w = h = 0;\r
 557         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);\r
 558         if (main_fb == NULL) {\r
 559                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
 560                 exit(1);\r
 561         }\r
 562 \r
 563         g_menuscreen_w = g_menuscreen_pp = w;\r
 564         g_menuscreen_h = h;\r
 565         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 566 \r
 567         w = 320; h = 240;\r
 568         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);\r
 569         if (layer_fb == NULL) {\r
 570                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
 571                 goto fail0;\r
 572         }\r
 573 \r
 574         if (w != g_screen_width || h != g_screen_height) {\r
 575                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
 576                 goto fail1;\r
 577         }\r
 578         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 579 \r
 580         temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);\r
 581         if (temp_frame == NULL) {\r
 582                 fprintf(stderr, "OOM\n");\r
 583                 goto fail1;\r
 584         }\r
 585         g_menubg_ptr = temp_frame;\r
 586         g_menubg_src_ptr = temp_frame;\r
 587 \r
 588         pnd_menu_init();\r
 589 \r
 590         // default ROM path\r
 591         strcpy(rom_fname_loaded, "/media");\r
 592 \r
 593         in_evdev_init(&pandora_evdev_pdata);\r
 594         in_probe();\r
 595         plat_target_setup_input();\r
 596 \r
 597         sndout_oss_frag_frames = 2;\r
 598 \r
 599         return;\r
 600 \r
 601 fail1:\r
 602         vout_fbdev_finish(layer_fb);\r
 603 fail0:\r
 604         vout_fbdev_finish(main_fb);\r
 605         exit(1);\r
 606 }\r
 607 \r
 608 void plat_finish(void)\r
 609 {\r
 610         vout_fbdev_finish(main_fb);\r
 611         xenv_finish();\r
 612 \r
 613         printf("all done\n");\r
 614 }\r
 615 \r