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_F,        IN_BINDTYPE_EMU, PEVB_FF },\r
  78         { KEY_BACKSPACE,IN_BINDTYPE_EMU, PEVB_FF },\r
  79         { KEY_BACKSLASH,IN_BINDTYPE_EMU, PEVB_MENU },\r
  80         { KEY_SPACE,    IN_BINDTYPE_EMU, PEVB_MENU },\r
  81         { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },\r
  82         { KEY_HOME,     IN_BINDTYPE_PLAYER12, GBTN_A },\r
  83         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, GBTN_B },\r
  84         { KEY_END,      IN_BINDTYPE_PLAYER12, GBTN_C },\r
  85         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, GBTN_START },\r
  86         { KEY_1,        IN_BINDTYPE_EMU, PEVB_STATE_SAVE },\r
  87         { KEY_2,        IN_BINDTYPE_EMU, PEVB_STATE_LOAD },\r
  88         { KEY_3,        IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },\r
  89         { KEY_4,        IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },\r
  90         { KEY_5,        IN_BINDTYPE_EMU, PEVB_PICO_PPREV },\r
  91         { KEY_6,        IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },\r
  92         { KEY_7,        IN_BINDTYPE_EMU, PEVB_PICO_SWINP },\r
  93         { 0, 0, 0 }\r
  94 };\r
  95 \r
  96 void pemu_prep_defconfig(void)\r
  97 {\r
  98         defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
  99         defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;\r
 100         defaultConfig.scaling = SCALE_2x2_3x2;\r
 101 }\r
 102 \r
 103 void pemu_validate_config(void)\r
 104 {\r
 105         currentConfig.CPUclock = plat_target_cpu_clock_get();\r
 106 }\r
 107 \r
 108 static void osd_text(int x, int y, const char *text)\r
 109 {\r
 110         int len = strlen(text)*8;\r
 111         int i, h;\r
 112 \r
 113         len++;\r
 114         if (x + len > g_screen_width)\r
 115                 len = g_screen_width - x;\r
 116 \r
 117         for (h = 0; h < 8; h++) {\r
 118                 unsigned short *p;\r
 119                 p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);\r
 120                 for (i = len; i > 0; i--, p++)\r
 121                         *p = (*p>>2) & 0x39e7;\r
 122         }\r
 123         emu_text_out16(x, y, text);\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         if (0) {\r
 132                 // 8-bit modes\r
 133                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 134                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 135                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
 136                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
 137                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
 138                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
 139                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
 140                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
 141         } else {\r
 142                 // 16-bit modes\r
 143                 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
 144                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 145                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 146                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 147                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 148                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 149         }\r
 150 }\r
 151 \r
 152 void pemu_finalize_frame(const char *fps, const char *notice)\r
 153 {\r
 154         if (notice && notice[0])\r
 155                 osd_text(2, g_osd_y, notice);\r
 156         if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))\r
 157                 osd_text(g_osd_fps_x, g_osd_y, fps);\r
 158         if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
 159                 draw_cd_leds();\r
 160 }\r
 161 \r
 162 void plat_video_flip(void)\r
 163 {\r
 164         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 165         PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
 166 \r
 167         // XXX: drain OS event queue here, maybe we'll actually use it someday..\r
 168         xenv_update(NULL, NULL, NULL, NULL);\r
 169 }\r
 170 \r
 171 void plat_video_toggle_renderer(int change, int is_menu)\r
 172 {\r
 173 }\r
 174 \r
 175 void plat_video_menu_enter(int is_rom_loaded)\r
 176 {\r
 177 }\r
 178 \r
 179 void plat_video_menu_begin(void)\r
 180 {\r
 181 }\r
 182 \r
 183 void plat_video_menu_end(void)\r
 184 {\r
 185         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 186 }\r
 187 \r
 188 void plat_video_menu_leave(void)\r
 189 {\r
 190 }\r
 191 \r
 192 void plat_video_wait_vsync(void)\r
 193 {\r
 194         vout_fbdev_wait_vsync(main_fb);\r
 195 }\r
 196 \r
 197 void plat_status_msg_clear(void)\r
 198 {\r
 199         vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
 200 }\r
 201 \r
 202 void plat_status_msg_busy_next(const char *msg)\r
 203 {\r
 204         plat_status_msg_clear();\r
 205         pemu_finalize_frame("", msg);\r
 206         plat_video_flip();\r
 207         emu_status_msg("");\r
 208         reset_timing = 1;\r
 209 }\r
 210 \r
 211 void plat_status_msg_busy_first(const char *msg)\r
 212 {\r
 213         plat_status_msg_busy_next(msg);\r
 214 }\r
 215 \r
 216 void plat_update_volume(int has_changed, int is_up)\r
 217 {\r
 218 }\r
 219 \r
 220 void pemu_forced_frame(int no_scale, int do_emu)\r
 221 {\r
 222         doing_bg_frame = 1;\r
 223         emu_cmn_forced_frame(no_scale, do_emu);\r
 224         doing_bg_frame = 0;\r
 225 \r
 226         // making a copy because enabling the layer clears it's mem\r
 227         memcpy((void *)fb_copy, g_screen_ptr, sizeof(fb_copy));\r
 228         g_menubg_src_ptr = fb_copy;\r
 229 }\r
 230 \r
 231 void pemu_sound_start(void)\r
 232 {\r
 233         emu_sound_start();\r
 234 }\r
 235 \r
 236 void plat_debug_cat(char *str)\r
 237 {\r
 238 }\r
 239 \r
 240 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
 241 {\r
 242         struct omapfb_plane_info pi;\r
 243         struct omapfb_mem_info mi;\r
 244         int is_enabled;\r
 245         int retval = 0;\r
 246         int ret;\r
 247 \r
 248         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
 249         if (ret != 0) {\r
 250                 perror("QUERY_PLANE");\r
 251                 return -1;\r
 252         }\r
 253 \r
 254         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
 255         if (ret != 0) {\r
 256                 perror("QUERY_MEM");\r
 257                 return -1;\r
 258         }\r
 259 \r
 260         /* must disable when changing stuff */\r
 261         is_enabled = pi.enabled;\r
 262         if (is_enabled) {\r
 263                 pi.enabled = 0;\r
 264                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 265                 if (ret != 0)\r
 266                         perror("SETUP_PLANE");\r
 267                 else\r
 268                         is_enabled = 0;\r
 269         }\r
 270 \r
 271         if (mi.size < LAYER_MEM_SIZE) {\r
 272                 unsigned int size_old = mi.size;\r
 273 \r
 274                 mi.size = LAYER_MEM_SIZE;\r
 275                 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
 276                 if (ret != 0) {\r
 277                         perror("SETUP_MEM");\r
 278                         fprintf(stderr, "(requested %u, had %u)\n",\r
 279                                 mi.size, size_old);\r
 280                         return -1;\r
 281                 }\r
 282         }\r
 283 \r
 284         pi.pos_x = x;\r
 285         pi.pos_y = y;\r
 286         pi.out_width = w;\r
 287         pi.out_height = h;\r
 288         pi.enabled = enabled;\r
 289 \r
 290         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 291         if (ret == 0) {\r
 292                 is_enabled = pi.enabled;\r
 293         }\r
 294         else {\r
 295                 perror("SETUP_PLANE");\r
 296                 retval = -1;\r
 297         }\r
 298 \r
 299         plat_target_switch_layer(1, is_enabled);\r
 300 \r
 301         return retval;\r
 302 }\r
 303 \r
 304 int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
 305 {\r
 306         return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
 307 }\r
 308 \r
 309 void pnd_restore_layer_data(void)\r
 310 {\r
 311         short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
 312 \r
 313         // right now this is used by menu, which wants to preview something\r
 314         // so try to get something on the layer.\r
 315         if ((t[0] | t[5] | t[13]) == 0)\r
 316                 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
 317 \r
 318         memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);\r
 319         plat_video_flip();\r
 320 }\r
 321 \r
 322 void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
 323 {\r
 324         int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
 325 \r
 326         if (doing_bg_frame)\r
 327                 return;\r
 328 \r
 329         if (is_32cols) {\r
 330                 fb_w = 256;\r
 331                 fb_left = fb_right = 32;\r
 332         }\r
 333 \r
 334         switch (currentConfig.scaling) {\r
 335         case SCALE_1x1:\r
 336                 g_layer_w = fb_w;\r
 337                 g_layer_h = fb_h;\r
 338                 break;\r
 339         case SCALE_2x2_3x2:\r
 340                 g_layer_w = fb_w * (is_32cols ? 3 : 2);\r
 341                 g_layer_h = fb_h * 2;\r
 342                 break;\r
 343         case SCALE_2x2_2x2:\r
 344                 g_layer_w = fb_w * 2;\r
 345                 g_layer_h = fb_h * 2;\r
 346                 break;\r
 347         case SCALE_FULLSCREEN:\r
 348                 g_layer_w = 800;\r
 349                 g_layer_h = 480;\r
 350                 break;\r
 351         case SCALE_CUSTOM:\r
 352                 g_layer_x = g_layer_cx;\r
 353                 g_layer_y = g_layer_cy;\r
 354                 g_layer_w = g_layer_cw;\r
 355                 g_layer_h = g_layer_ch;\r
 356                 break;\r
 357         }\r
 358 \r
 359         if (currentConfig.scaling != SCALE_CUSTOM) {\r
 360                 // center the layer\r
 361                 g_layer_x = 800 / 2 - g_layer_w / 2;\r
 362                 g_layer_y = 480 / 2 - g_layer_h / 2;\r
 363         }\r
 364 \r
 365         switch (currentConfig.scaling) {\r
 366         case SCALE_FULLSCREEN:\r
 367         case SCALE_CUSTOM:\r
 368                 fb_top = start_line;\r
 369                 fb_h = line_count;\r
 370                 break;\r
 371         }\r
 372         g_osd_fps_x = is_32cols ? 232 : 264;\r
 373         g_osd_y = fb_top + fb_h - 8;\r
 374 \r
 375         pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 376         vout_fbdev_clear(layer_fb);\r
 377         vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4);\r
 378         plat_video_flip();\r
 379 \r
 380         PicoDrawSetOutFormat(PDF_RGB555, 0);\r
 381 }\r
 382 \r
 383 void plat_video_loop_prepare(void)\r
 384 {\r
 385         // make sure there is no junk left behind the layer\r
 386         memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);\r
 387         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 388 \r
 389         // emu_video_mode_change will call pnd_setup_layer()\r
 390 }\r
 391 \r
 392 void pemu_loop_prep(void)\r
 393 {\r
 394         // dirty buffers better go now than during gameplay\r
 395         fflush(stdout);\r
 396         fflush(stderr);\r
 397         sync();\r
 398         sleep(0);\r
 399 }\r
 400 \r
 401 void pemu_loop_end(void)\r
 402 {\r
 403         /* do one more frame for menu bg */\r
 404         pemu_forced_frame(0, 1);\r
 405 \r
 406         pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 407 }\r
 408 \r
 409 void plat_wait_till_us(unsigned int us_to)\r
 410 {\r
 411         unsigned int now;\r
 412         signed int diff;\r
 413 \r
 414         now = plat_get_ticks_us();\r
 415 \r
 416         // XXX: need to check NOHZ\r
 417         diff = (signed int)(us_to - now);\r
 418         if (diff > 10000) {\r
 419                 //printf("sleep %d\n", us_to - now);\r
 420                 usleep(diff * 15 / 16);\r
 421                 now = plat_get_ticks_us();\r
 422                 //printf(" wake %d\n", (signed)(us_to - now));\r
 423         }\r
 424 /*\r
 425         while ((signed int)(us_to - now) > 512) {\r
 426                 spend_cycles(1024);\r
 427                 now = plat_get_ticks_us();\r
 428         }\r
 429 */\r
 430 }\r
 431 \r
 432 void plat_early_init(void)\r
 433 {\r
 434 }\r
 435 \r
 436 void plat_init(void)\r
 437 {\r
 438         const char *main_fb_name, *layer_fb_name;\r
 439         int fd, ret, w, h;\r
 440 \r
 441         main_fb_name = getenv("FBDEV_MAIN");\r
 442         if (main_fb_name == NULL)\r
 443                 main_fb_name = "/dev/fb0";\r
 444 \r
 445         layer_fb_name = getenv("FBDEV_LAYER");\r
 446         if (layer_fb_name == NULL)\r
 447                 layer_fb_name = "/dev/fb1";\r
 448 \r
 449         // must set the layer up first to be able to use it\r
 450         fd = open(layer_fb_name, O_RDWR);\r
 451         if (fd == -1) {\r
 452                 fprintf(stderr, "%s: ", layer_fb_name);\r
 453                 perror("open");\r
 454                 exit(1);\r
 455         }\r
 456 \r
 457         ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 458         close(fd);\r
 459         if (ret != 0) {\r
 460                 fprintf(stderr, "failed to set up layer, exiting.\n");\r
 461                 exit(1);\r
 462         }\r
 463 \r
 464         xenv_init(NULL, "PicoDrive " VERSION);\r
 465 \r
 466         w = h = 0;\r
 467         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);\r
 468         if (main_fb == NULL) {\r
 469                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
 470                 exit(1);\r
 471         }\r
 472 \r
 473         g_menuscreen_w = w;\r
 474         g_menuscreen_h = h;\r
 475         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 476 \r
 477         w = 320; h = 240;\r
 478         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);\r
 479         if (layer_fb == NULL) {\r
 480                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
 481                 goto fail0;\r
 482         }\r
 483 \r
 484         if (w != g_screen_width || h != g_screen_height) {\r
 485                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
 486                 goto fail1;\r
 487         }\r
 488         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 489 \r
 490         temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);\r
 491         if (temp_frame == NULL) {\r
 492                 fprintf(stderr, "OOM\n");\r
 493                 goto fail1;\r
 494         }\r
 495         g_menubg_ptr = temp_frame;\r
 496         g_menubg_src_ptr = temp_frame;\r
 497 \r
 498         pnd_menu_init();\r
 499 \r
 500         // default ROM path\r
 501         strcpy(rom_fname_loaded, "/media");\r
 502 \r
 503         in_evdev_init(in_evdev_defbinds);\r
 504         in_probe();\r
 505         plat_target_setup_input();\r
 506 \r
 507         sndout_oss_frag_frames = 2;\r
 508 \r
 509         return;\r
 510 \r
 511 fail1:\r
 512         vout_fbdev_finish(layer_fb);\r
 513 fail0:\r
 514         vout_fbdev_finish(main_fb);\r
 515         exit(1);\r
 516 }\r
 517 \r
 518 void plat_finish(void)\r
 519 {\r
 520         vout_fbdev_finish(main_fb);\r
 521         xenv_finish();\r
 522 \r
 523         printf("all done\n");\r
 524 }\r
 525 \r