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 static struct vout_fbdev *main_fb, *layer_fb;\r
  37 // g_layer_* - in use, g_layer_c* - configured custom\r
  38 int g_layer_cx, g_layer_cy, g_layer_cw, g_layer_ch;\r
  39 static int g_layer_x, g_layer_y;\r
  40 static int g_layer_w = 320, g_layer_h = 240;\r
  41 static int g_osd_fps_x, g_osd_y, doing_bg_frame;\r
  42 \r
  43 static const char pnd_script_base[] = "sudo -n /usr/pandora/scripts";\r
  44 static unsigned char __attribute__((aligned(4))) fb_copy[320 * 240 * 2];\r
  45 static void *temp_frame;\r
  46 const char *renderer_names[] = { NULL };\r
  47 const char *renderer_names32x[] = { NULL };\r
  48 \r
  49 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {\r
  50         [0 ... KEY_MAX] = NULL,\r
  51         [KEY_UP]        = "Up",\r
  52         [KEY_LEFT]      = "Left",\r
  53         [KEY_RIGHT]     = "Right",\r
  54         [KEY_DOWN]      = "Down",\r
  55         [KEY_HOME]      = "A",\r
  56         [KEY_PAGEDOWN]  = "X",\r
  57         [KEY_END]       = "B",\r
  58         [KEY_PAGEUP]    = "Y",\r
  59         [KEY_RIGHTSHIFT]= "L",\r
  60         [KEY_RIGHTCTRL] = "R",\r
  61         [KEY_LEFTALT]   = "Start",\r
  62         [KEY_LEFTCTRL]  = "Select",\r
  63         [KEY_MENU]      = "Pandora",\r
  64 };\r
  65 \r
  66 static struct in_default_bind in_evdev_defbinds[] =\r
  67 {\r
  68         { KEY_UP,       IN_BINDTYPE_PLAYER12, GBTN_UP },\r
  69         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, GBTN_DOWN },\r
  70         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, GBTN_LEFT },\r
  71         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, GBTN_RIGHT },\r
  72         { KEY_A,        IN_BINDTYPE_PLAYER12, GBTN_A },\r
  73         { KEY_S,        IN_BINDTYPE_PLAYER12, GBTN_B },\r
  74         { KEY_D,        IN_BINDTYPE_PLAYER12, GBTN_C },\r
  75         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, GBTN_START },\r
  76         { KEY_F,        IN_BINDTYPE_EMU, PEVB_FF },\r
  77         { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },\r
  78         { KEY_SPACE,    IN_BINDTYPE_EMU, PEVB_MENU },\r
  79         /* Pandora */\r
  80         { KEY_HOME,     IN_BINDTYPE_PLAYER12, GBTN_A },\r
  81         { KEY_PAGEDOWN, IN_BINDTYPE_PLAYER12, GBTN_B },\r
  82         { KEY_END,      IN_BINDTYPE_PLAYER12, GBTN_C },\r
  83         { KEY_LEFTALT,  IN_BINDTYPE_PLAYER12, GBTN_START },\r
  84         { KEY_RIGHTSHIFT,IN_BINDTYPE_EMU, PEVB_STATE_SAVE },\r
  85         { KEY_RIGHTCTRL, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },\r
  86         { KEY_LEFTCTRL,  IN_BINDTYPE_EMU, PEVB_MENU },\r
  87         { 0, 0, 0 }\r
  88 };\r
  89 \r
  90 void pemu_prep_defconfig(void)\r
  91 {\r
  92         defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
  93         defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX|POPT_EN_MCD_PSYNC;\r
  94         defaultConfig.scaling = SCALE_2x2_3x2;\r
  95 }\r
  96 \r
  97 void pemu_validate_config(void)\r
  98 {\r
  99         currentConfig.CPUclock = plat_target_cpu_clock_get();\r
 100 }\r
 101 \r
 102 static void osd_text(int x, int y, const char *text)\r
 103 {\r
 104         int len = strlen(text)*8;\r
 105         int i, h;\r
 106 \r
 107         len++;\r
 108         if (x + len > g_screen_width)\r
 109                 len = g_screen_width - x;\r
 110 \r
 111         for (h = 0; h < 8; h++) {\r
 112                 unsigned short *p;\r
 113                 p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);\r
 114                 for (i = len; i > 0; i--, p++)\r
 115                         *p = (*p>>2) & 0x39e7;\r
 116         }\r
 117         emu_text_out16(x, y, text);\r
 118 }\r
 119 \r
 120 static void draw_cd_leds(void)\r
 121 {\r
 122         int old_reg;\r
 123         old_reg = Pico_mcd->s68k_regs[0];\r
 124 \r
 125         if (0) {\r
 126                 // 8-bit modes\r
 127                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 128                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 129                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
 130                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
 131                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
 132                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
 133                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
 134                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
 135         } else {\r
 136                 // 16-bit modes\r
 137                 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
 138                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 139                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 140                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 141                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 142                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 143         }\r
 144 }\r
 145 \r
 146 void pemu_finalize_frame(const char *fps, const char *notice)\r
 147 {\r
 148         if (notice && notice[0])\r
 149                 osd_text(2, g_osd_y, notice);\r
 150         if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))\r
 151                 osd_text(g_osd_fps_x, g_osd_y, fps);\r
 152         if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
 153                 draw_cd_leds();\r
 154 }\r
 155 \r
 156 void plat_video_flip(void)\r
 157 {\r
 158         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 159         PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
 160 \r
 161         // XXX: drain OS event queue here, maybe we'll actually use it someday..\r
 162         xenv_update(NULL, NULL, NULL, NULL);\r
 163 }\r
 164 \r
 165 void plat_video_toggle_renderer(int change, int is_menu)\r
 166 {\r
 167 }\r
 168 \r
 169 void plat_video_menu_enter(int is_rom_loaded)\r
 170 {\r
 171 }\r
 172 \r
 173 void plat_video_menu_begin(void)\r
 174 {\r
 175 }\r
 176 \r
 177 void plat_video_menu_end(void)\r
 178 {\r
 179         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 180 }\r
 181 \r
 182 void plat_video_menu_leave(void)\r
 183 {\r
 184 }\r
 185 \r
 186 void plat_video_wait_vsync(void)\r
 187 {\r
 188         vout_fbdev_wait_vsync(main_fb);\r
 189 }\r
 190 \r
 191 void plat_status_msg_clear(void)\r
 192 {\r
 193         vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
 194 }\r
 195 \r
 196 void plat_status_msg_busy_next(const char *msg)\r
 197 {\r
 198         plat_status_msg_clear();\r
 199         pemu_finalize_frame("", msg);\r
 200         plat_video_flip();\r
 201         emu_status_msg("");\r
 202         reset_timing = 1;\r
 203 }\r
 204 \r
 205 void plat_status_msg_busy_first(const char *msg)\r
 206 {\r
 207         plat_status_msg_busy_next(msg);\r
 208 }\r
 209 \r
 210 void plat_update_volume(int has_changed, int is_up)\r
 211 {\r
 212 }\r
 213 \r
 214 void pemu_forced_frame(int no_scale, int do_emu)\r
 215 {\r
 216         doing_bg_frame = 1;\r
 217         emu_cmn_forced_frame(no_scale, do_emu);\r
 218         doing_bg_frame = 0;\r
 219 \r
 220         // making a copy because enabling the layer clears it's mem\r
 221         memcpy((void *)fb_copy, g_screen_ptr, sizeof(fb_copy));\r
 222         g_menubg_src_ptr = fb_copy;\r
 223 }\r
 224 \r
 225 void pemu_sound_start(void)\r
 226 {\r
 227         emu_sound_start();\r
 228 }\r
 229 \r
 230 void plat_debug_cat(char *str)\r
 231 {\r
 232 }\r
 233 \r
 234 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
 235 {\r
 236         struct omapfb_plane_info pi;\r
 237         struct omapfb_mem_info mi;\r
 238         int ret;\r
 239 \r
 240         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
 241         if (ret != 0) {\r
 242                 perror("QUERY_PLANE");\r
 243                 return -1;\r
 244         }\r
 245 \r
 246         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
 247         if (ret != 0) {\r
 248                 perror("QUERY_MEM");\r
 249                 return -1;\r
 250         }\r
 251 \r
 252         /* must disable when changing stuff */\r
 253         if (pi.enabled) {\r
 254                 pi.enabled = 0;\r
 255                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 256                 if (ret != 0)\r
 257                         perror("SETUP_PLANE");\r
 258         }\r
 259 \r
 260         mi.size = 320*240*2*4;\r
 261         ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
 262         if (ret != 0) {\r
 263                 perror("SETUP_MEM");\r
 264                 return -1;\r
 265         }\r
 266 \r
 267         pi.pos_x = x;\r
 268         pi.pos_y = y;\r
 269         pi.out_width = w;\r
 270         pi.out_height = h;\r
 271         pi.enabled = enabled;\r
 272 \r
 273         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 274         if (ret != 0) {\r
 275                 perror("SETUP_PLANE");\r
 276                 return -1;\r
 277         }\r
 278 \r
 279         return 0;\r
 280 }\r
 281 \r
 282 int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
 283 {\r
 284         return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
 285 }\r
 286 \r
 287 void pnd_restore_layer_data(void)\r
 288 {\r
 289         short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
 290 \r
 291         // right now this is used by menu, which wants to preview something\r
 292         // so try to get something on the layer.\r
 293         if ((t[0] | t[5] | t[13]) == 0)\r
 294                 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
 295 \r
 296         memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);\r
 297         plat_video_flip();\r
 298 }\r
 299 \r
 300 void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
 301 {\r
 302         int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
 303 \r
 304         if (doing_bg_frame)\r
 305                 return;\r
 306 \r
 307         if (is_32cols) {\r
 308                 fb_w = 256;\r
 309                 fb_left = fb_right = 32;\r
 310         }\r
 311 \r
 312         switch (currentConfig.scaling) {\r
 313         case SCALE_1x1:\r
 314                 g_layer_w = fb_w;\r
 315                 g_layer_h = fb_h;\r
 316                 break;\r
 317         case SCALE_2x2_3x2:\r
 318                 g_layer_w = fb_w * (is_32cols ? 3 : 2);\r
 319                 g_layer_h = fb_h * 2;\r
 320                 break;\r
 321         case SCALE_2x2_2x2:\r
 322                 g_layer_w = fb_w * 2;\r
 323                 g_layer_h = fb_h * 2;\r
 324                 break;\r
 325         case SCALE_FULLSCREEN:\r
 326                 g_layer_w = 800;\r
 327                 g_layer_h = 480;\r
 328                 break;\r
 329         case SCALE_CUSTOM:\r
 330                 g_layer_x = g_layer_cx;\r
 331                 g_layer_y = g_layer_cy;\r
 332                 g_layer_w = g_layer_cw;\r
 333                 g_layer_h = g_layer_ch;\r
 334                 break;\r
 335         }\r
 336 \r
 337         if (currentConfig.scaling != SCALE_CUSTOM) {\r
 338                 // center the layer\r
 339                 g_layer_x = 800 / 2 - g_layer_w / 2;\r
 340                 g_layer_y = 480 / 2 - g_layer_h / 2;\r
 341         }\r
 342 \r
 343         switch (currentConfig.scaling) {\r
 344         case SCALE_FULLSCREEN:\r
 345         case SCALE_CUSTOM:\r
 346                 fb_top = start_line;\r
 347                 fb_h = line_count;\r
 348                 break;\r
 349         }\r
 350         g_osd_fps_x = is_32cols ? 232 : 264;\r
 351         g_osd_y = fb_top + fb_h - 8;\r
 352 \r
 353         pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 354         vout_fbdev_clear(layer_fb);\r
 355         vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4);\r
 356         plat_video_flip();\r
 357 \r
 358         PicoDrawSetOutFormat(PDF_RGB555, 0);\r
 359 }\r
 360 \r
 361 void plat_video_loop_prepare(void)\r
 362 {\r
 363         // make sure there is no junk left behind the layer\r
 364         memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);\r
 365         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 366 \r
 367         // emu_video_mode_change will call pnd_setup_layer()\r
 368 }\r
 369 \r
 370 void pemu_loop_prep(void)\r
 371 {\r
 372         // dirty buffers better go now than during gameplay\r
 373         sync();\r
 374         sleep(0);\r
 375 }\r
 376 \r
 377 void pemu_loop_end(void)\r
 378 {\r
 379         /* do one more frame for menu bg */\r
 380         pemu_forced_frame(0, 1);\r
 381 \r
 382         pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 383 }\r
 384 \r
 385 void plat_wait_till_us(unsigned int us_to)\r
 386 {\r
 387         unsigned int now;\r
 388         signed int diff;\r
 389 \r
 390         now = plat_get_ticks_us();\r
 391 \r
 392         // XXX: need to check NOHZ\r
 393         diff = (signed int)(us_to - now);\r
 394         if (diff > 10000) {\r
 395                 //printf("sleep %d\n", us_to - now);\r
 396                 usleep(diff * 15 / 16);\r
 397                 now = plat_get_ticks_us();\r
 398                 //printf(" wake %d\n", (signed)(us_to - now));\r
 399         }\r
 400 /*\r
 401         while ((signed int)(us_to - now) > 512) {\r
 402                 spend_cycles(1024);\r
 403                 now = plat_get_ticks_us();\r
 404         }\r
 405 */\r
 406 }\r
 407 \r
 408 void plat_early_init(void)\r
 409 {\r
 410 }\r
 411 \r
 412 void plat_init(void)\r
 413 {\r
 414         const char *main_fb_name, *layer_fb_name;\r
 415         int fd, ret, w, h;\r
 416 \r
 417         main_fb_name = getenv("FBDEV_MAIN");\r
 418         if (main_fb_name == NULL)\r
 419                 main_fb_name = "/dev/fb0";\r
 420 \r
 421         layer_fb_name = getenv("FBDEV_LAYER");\r
 422         if (layer_fb_name == NULL)\r
 423                 layer_fb_name = "/dev/fb1";\r
 424 \r
 425         // must set the layer up first to be able to use it\r
 426         fd = open(layer_fb_name, O_RDWR);\r
 427         if (fd == -1) {\r
 428                 fprintf(stderr, "%s: ", layer_fb_name);\r
 429                 perror("open");\r
 430                 exit(1);\r
 431         }\r
 432 \r
 433         ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 434         close(fd);\r
 435         if (ret != 0) {\r
 436                 fprintf(stderr, "failed to set up layer, exiting.\n");\r
 437                 exit(1);\r
 438         }\r
 439 \r
 440         xenv_init(NULL, "PicoDrive " VERSION);\r
 441 \r
 442         w = h = 0;\r
 443         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);\r
 444         if (main_fb == NULL) {\r
 445                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
 446                 exit(1);\r
 447         }\r
 448 \r
 449         g_menuscreen_w = w;\r
 450         g_menuscreen_h = h;\r
 451         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 452 \r
 453         w = 320; h = 240;\r
 454         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);\r
 455         if (layer_fb == NULL) {\r
 456                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
 457                 goto fail0;\r
 458         }\r
 459 \r
 460         if (w != g_screen_width || h != g_screen_height) {\r
 461                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
 462                 goto fail1;\r
 463         }\r
 464         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 465 \r
 466         temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);\r
 467         if (temp_frame == NULL) {\r
 468                 fprintf(stderr, "OOM\n");\r
 469                 goto fail1;\r
 470         }\r
 471         g_menubg_ptr = temp_frame;\r
 472         g_menubg_src_ptr = temp_frame;\r
 473 \r
 474         pnd_menu_init();\r
 475 \r
 476         in_evdev_init(in_evdev_defbinds);\r
 477         in_probe();\r
 478         plat_target_setup_input();\r
 479 \r
 480         sndout_oss_frag_frames = 2;\r
 481 \r
 482         return;\r
 483 \r
 484 fail1:\r
 485         vout_fbdev_finish(layer_fb);\r
 486 fail0:\r
 487         vout_fbdev_finish(main_fb);\r
 488         exit(1);\r
 489 }\r
 490 \r
 491 void plat_finish(void)\r
 492 {\r
 493         vout_fbdev_finish(main_fb);\r
 494         xenv_finish();\r
 495 \r
 496         printf("all done\n");\r
 497 }\r
 498 \r