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 unsigned char __attribute__((aligned(4))) fb_copy[320 * 240 * 2];\r
  44 static void *temp_frame;\r
  45 const char *renderer_names[] = { NULL };\r
  46 const char *renderer_names32x[] = { NULL };\r
  47 \r
  48 static const char * const pandora_gpio_keys[KEY_MAX + 1] = {\r
  49         [0 ... KEY_MAX] = NULL,\r
  50         [KEY_UP]        = "Up",\r
  51         [KEY_LEFT]      = "Left",\r
  52         [KEY_RIGHT]     = "Right",\r
  53         [KEY_DOWN]      = "Down",\r
  54         [KEY_HOME]      = "A",\r
  55         [KEY_PAGEDOWN]  = "X",\r
  56         [KEY_END]       = "B",\r
  57         [KEY_PAGEUP]    = "Y",\r
  58         [KEY_RIGHTSHIFT]= "L",\r
  59         [KEY_RIGHTCTRL] = "R",\r
  60         [KEY_LEFTALT]   = "Start",\r
  61         [KEY_LEFTCTRL]  = "Select",\r
  62         [KEY_MENU]      = "Pandora",\r
  63 };\r
  64 \r
  65 static struct in_default_bind in_evdev_defbinds[] =\r
  66 {\r
  67         { KEY_UP,       IN_BINDTYPE_PLAYER12, GBTN_UP },\r
  68         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, GBTN_DOWN },\r
  69         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, GBTN_LEFT },\r
  70         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, GBTN_RIGHT },\r
  71         { KEY_A,        IN_BINDTYPE_PLAYER12, GBTN_A },\r
  72         { KEY_S,        IN_BINDTYPE_PLAYER12, GBTN_B },\r
  73         { KEY_D,        IN_BINDTYPE_PLAYER12, GBTN_C },\r
  74         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, GBTN_START },\r
  75         { KEY_F,        IN_BINDTYPE_EMU, PEVB_FF },\r
  76         { KEY_BACKSPACE,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         { KEY_LEFTCTRL, IN_BINDTYPE_EMU, PEVB_MENU },\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_1,        IN_BINDTYPE_EMU, PEVB_STATE_SAVE },\r
  85         { KEY_2,        IN_BINDTYPE_EMU, PEVB_STATE_LOAD },\r
  86         { KEY_3,        IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },\r
  87         { KEY_4,        IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },\r
  88         { KEY_5,        IN_BINDTYPE_EMU, PEVB_PICO_PPREV },\r
  89         { KEY_6,        IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },\r
  90         { KEY_7,        IN_BINDTYPE_EMU, PEVB_PICO_SWINP },\r
  91         { 0, 0, 0 }\r
  92 };\r
  93 \r
  94 void pemu_prep_defconfig(void)\r
  95 {\r
  96         defaultConfig.EmuOpt |= EOPT_VSYNC|EOPT_16BPP;\r
  97         defaultConfig.s_PicoOpt |= POPT_EN_MCD_GFX;\r
  98         defaultConfig.scaling = SCALE_2x2_3x2;\r
  99 }\r
 100 \r
 101 void pemu_validate_config(void)\r
 102 {\r
 103         currentConfig.CPUclock = plat_target_cpu_clock_get();\r
 104 }\r
 105 \r
 106 static void osd_text(int x, int y, const char *text)\r
 107 {\r
 108         int len = strlen(text)*8;\r
 109         int i, h;\r
 110 \r
 111         len++;\r
 112         if (x + len > g_screen_width)\r
 113                 len = g_screen_width - x;\r
 114 \r
 115         for (h = 0; h < 8; h++) {\r
 116                 unsigned short *p;\r
 117                 p = (unsigned short *)g_screen_ptr + x + g_screen_width*(y + h);\r
 118                 for (i = len; i > 0; i--, p++)\r
 119                         *p = (*p>>2) & 0x39e7;\r
 120         }\r
 121         emu_text_out16(x, y, text);\r
 122 }\r
 123 \r
 124 static void draw_cd_leds(void)\r
 125 {\r
 126         int old_reg;\r
 127         old_reg = Pico_mcd->s68k_regs[0];\r
 128 \r
 129         if (0) {\r
 130                 // 8-bit modes\r
 131                 unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;\r
 132                 unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;\r
 133                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =\r
 134                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =\r
 135                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;\r
 136                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =\r
 137                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =\r
 138                 *(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;\r
 139         } else {\r
 140                 // 16-bit modes\r
 141                 unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);\r
 142                 unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;\r
 143                 unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;\r
 144                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 145                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;\r
 146                 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;\r
 147         }\r
 148 }\r
 149 \r
 150 void pemu_finalize_frame(const char *fps, const char *notice)\r
 151 {\r
 152         if (notice && notice[0])\r
 153                 osd_text(2, g_osd_y, notice);\r
 154         if (fps && fps[0] && (currentConfig.EmuOpt & EOPT_SHOW_FPS))\r
 155                 osd_text(g_osd_fps_x, g_osd_y, fps);\r
 156         if ((PicoAHW & PAHW_MCD) && (currentConfig.EmuOpt & EOPT_EN_CD_LEDS))\r
 157                 draw_cd_leds();\r
 158 }\r
 159 \r
 160 void plat_video_flip(void)\r
 161 {\r
 162         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 163         PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);\r
 164 \r
 165         // XXX: drain OS event queue here, maybe we'll actually use it someday..\r
 166         xenv_update(NULL, NULL, NULL, NULL);\r
 167 }\r
 168 \r
 169 void plat_video_toggle_renderer(int change, int is_menu)\r
 170 {\r
 171 }\r
 172 \r
 173 void plat_video_menu_enter(int is_rom_loaded)\r
 174 {\r
 175 }\r
 176 \r
 177 void plat_video_menu_begin(void)\r
 178 {\r
 179 }\r
 180 \r
 181 void plat_video_menu_end(void)\r
 182 {\r
 183         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 184 }\r
 185 \r
 186 void plat_video_menu_leave(void)\r
 187 {\r
 188 }\r
 189 \r
 190 void plat_video_wait_vsync(void)\r
 191 {\r
 192         vout_fbdev_wait_vsync(main_fb);\r
 193 }\r
 194 \r
 195 void plat_status_msg_clear(void)\r
 196 {\r
 197         vout_fbdev_clear_lines(layer_fb, g_osd_y, 8);\r
 198 }\r
 199 \r
 200 void plat_status_msg_busy_next(const char *msg)\r
 201 {\r
 202         plat_status_msg_clear();\r
 203         pemu_finalize_frame("", msg);\r
 204         plat_video_flip();\r
 205         emu_status_msg("");\r
 206         reset_timing = 1;\r
 207 }\r
 208 \r
 209 void plat_status_msg_busy_first(const char *msg)\r
 210 {\r
 211         plat_status_msg_busy_next(msg);\r
 212 }\r
 213 \r
 214 void plat_update_volume(int has_changed, int is_up)\r
 215 {\r
 216 }\r
 217 \r
 218 void pemu_forced_frame(int no_scale, int do_emu)\r
 219 {\r
 220         doing_bg_frame = 1;\r
 221         emu_cmn_forced_frame(no_scale, do_emu);\r
 222         doing_bg_frame = 0;\r
 223 \r
 224         // making a copy because enabling the layer clears it's mem\r
 225         memcpy((void *)fb_copy, g_screen_ptr, sizeof(fb_copy));\r
 226         g_menubg_src_ptr = fb_copy;\r
 227 }\r
 228 \r
 229 void pemu_sound_start(void)\r
 230 {\r
 231         emu_sound_start();\r
 232 }\r
 233 \r
 234 void plat_debug_cat(char *str)\r
 235 {\r
 236 }\r
 237 \r
 238 static int pnd_setup_layer_(int fd, int enabled, int x, int y, int w, int h)\r
 239 {\r
 240         struct omapfb_plane_info pi;\r
 241         struct omapfb_mem_info mi;\r
 242         int ret;\r
 243 \r
 244         ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);\r
 245         if (ret != 0) {\r
 246                 perror("QUERY_PLANE");\r
 247                 return -1;\r
 248         }\r
 249 \r
 250         ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);\r
 251         if (ret != 0) {\r
 252                 perror("QUERY_MEM");\r
 253                 return -1;\r
 254         }\r
 255 \r
 256         /* must disable when changing stuff */\r
 257         if (pi.enabled) {\r
 258                 pi.enabled = 0;\r
 259                 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 260                 if (ret != 0)\r
 261                         perror("SETUP_PLANE");\r
 262         }\r
 263 \r
 264         mi.size = 320*240*2*4;\r
 265         ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);\r
 266         if (ret != 0) {\r
 267                 perror("SETUP_MEM");\r
 268                 return -1;\r
 269         }\r
 270 \r
 271         pi.pos_x = x;\r
 272         pi.pos_y = y;\r
 273         pi.out_width = w;\r
 274         pi.out_height = h;\r
 275         pi.enabled = enabled;\r
 276 \r
 277         ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);\r
 278         if (ret != 0) {\r
 279                 perror("SETUP_PLANE");\r
 280                 return -1;\r
 281         }\r
 282 \r
 283         return 0;\r
 284 }\r
 285 \r
 286 int pnd_setup_layer(int enabled, int x, int y, int w, int h)\r
 287 {\r
 288         return pnd_setup_layer_(vout_fbdev_get_fd(layer_fb), enabled, x, y, w, h);\r
 289 }\r
 290 \r
 291 void pnd_restore_layer_data(void)\r
 292 {\r
 293         short *t = (short *)fb_copy + 320*240 / 2 + 160;\r
 294 \r
 295         // right now this is used by menu, which wants to preview something\r
 296         // so try to get something on the layer.\r
 297         if ((t[0] | t[5] | t[13]) == 0)\r
 298                 memset32((void *)fb_copy, 0x07000700, sizeof(fb_copy) / 4);\r
 299 \r
 300         memcpy(g_screen_ptr, (void *)fb_copy, 320*240*2);\r
 301         plat_video_flip();\r
 302 }\r
 303 \r
 304 void emu_video_mode_change(int start_line, int line_count, int is_32cols)\r
 305 {\r
 306         int fb_w = 320, fb_h = 240, fb_left = 0, fb_right = 0, fb_top = 0, fb_bottom = 0;\r
 307 \r
 308         if (doing_bg_frame)\r
 309                 return;\r
 310 \r
 311         if (is_32cols) {\r
 312                 fb_w = 256;\r
 313                 fb_left = fb_right = 32;\r
 314         }\r
 315 \r
 316         switch (currentConfig.scaling) {\r
 317         case SCALE_1x1:\r
 318                 g_layer_w = fb_w;\r
 319                 g_layer_h = fb_h;\r
 320                 break;\r
 321         case SCALE_2x2_3x2:\r
 322                 g_layer_w = fb_w * (is_32cols ? 3 : 2);\r
 323                 g_layer_h = fb_h * 2;\r
 324                 break;\r
 325         case SCALE_2x2_2x2:\r
 326                 g_layer_w = fb_w * 2;\r
 327                 g_layer_h = fb_h * 2;\r
 328                 break;\r
 329         case SCALE_FULLSCREEN:\r
 330                 g_layer_w = 800;\r
 331                 g_layer_h = 480;\r
 332                 break;\r
 333         case SCALE_CUSTOM:\r
 334                 g_layer_x = g_layer_cx;\r
 335                 g_layer_y = g_layer_cy;\r
 336                 g_layer_w = g_layer_cw;\r
 337                 g_layer_h = g_layer_ch;\r
 338                 break;\r
 339         }\r
 340 \r
 341         if (currentConfig.scaling != SCALE_CUSTOM) {\r
 342                 // center the layer\r
 343                 g_layer_x = 800 / 2 - g_layer_w / 2;\r
 344                 g_layer_y = 480 / 2 - g_layer_h / 2;\r
 345         }\r
 346 \r
 347         switch (currentConfig.scaling) {\r
 348         case SCALE_FULLSCREEN:\r
 349         case SCALE_CUSTOM:\r
 350                 fb_top = start_line;\r
 351                 fb_h = line_count;\r
 352                 break;\r
 353         }\r
 354         g_osd_fps_x = is_32cols ? 232 : 264;\r
 355         g_osd_y = fb_top + fb_h - 8;\r
 356 \r
 357         pnd_setup_layer(1, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 358         vout_fbdev_clear(layer_fb);\r
 359         vout_fbdev_resize(layer_fb, fb_w, fb_h, 16, fb_left, fb_right, fb_top, fb_bottom, 4);\r
 360         plat_video_flip();\r
 361 \r
 362         PicoDrawSetOutFormat(PDF_RGB555, 0);\r
 363 }\r
 364 \r
 365 void plat_video_loop_prepare(void)\r
 366 {\r
 367         // make sure there is no junk left behind the layer\r
 368         memset(g_menuscreen_ptr, 0, g_menuscreen_w * g_menuscreen_h * 2);\r
 369         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 370 \r
 371         // emu_video_mode_change will call pnd_setup_layer()\r
 372 }\r
 373 \r
 374 void pemu_loop_prep(void)\r
 375 {\r
 376         // dirty buffers better go now than during gameplay\r
 377         fflush(stdout);\r
 378         fflush(stderr);\r
 379         sync();\r
 380         sleep(0);\r
 381 }\r
 382 \r
 383 void pemu_loop_end(void)\r
 384 {\r
 385         /* do one more frame for menu bg */\r
 386         pemu_forced_frame(0, 1);\r
 387 \r
 388         pnd_setup_layer(0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 389 }\r
 390 \r
 391 void plat_wait_till_us(unsigned int us_to)\r
 392 {\r
 393         unsigned int now;\r
 394         signed int diff;\r
 395 \r
 396         now = plat_get_ticks_us();\r
 397 \r
 398         // XXX: need to check NOHZ\r
 399         diff = (signed int)(us_to - now);\r
 400         if (diff > 10000) {\r
 401                 //printf("sleep %d\n", us_to - now);\r
 402                 usleep(diff * 15 / 16);\r
 403                 now = plat_get_ticks_us();\r
 404                 //printf(" wake %d\n", (signed)(us_to - now));\r
 405         }\r
 406 /*\r
 407         while ((signed int)(us_to - now) > 512) {\r
 408                 spend_cycles(1024);\r
 409                 now = plat_get_ticks_us();\r
 410         }\r
 411 */\r
 412 }\r
 413 \r
 414 void plat_early_init(void)\r
 415 {\r
 416 }\r
 417 \r
 418 void plat_init(void)\r
 419 {\r
 420         const char *main_fb_name, *layer_fb_name;\r
 421         int fd, ret, w, h;\r
 422 \r
 423         main_fb_name = getenv("FBDEV_MAIN");\r
 424         if (main_fb_name == NULL)\r
 425                 main_fb_name = "/dev/fb0";\r
 426 \r
 427         layer_fb_name = getenv("FBDEV_LAYER");\r
 428         if (layer_fb_name == NULL)\r
 429                 layer_fb_name = "/dev/fb1";\r
 430 \r
 431         // must set the layer up first to be able to use it\r
 432         fd = open(layer_fb_name, O_RDWR);\r
 433         if (fd == -1) {\r
 434                 fprintf(stderr, "%s: ", layer_fb_name);\r
 435                 perror("open");\r
 436                 exit(1);\r
 437         }\r
 438 \r
 439         ret = pnd_setup_layer_(fd, 0, g_layer_x, g_layer_y, g_layer_w, g_layer_h);\r
 440         close(fd);\r
 441         if (ret != 0) {\r
 442                 fprintf(stderr, "failed to set up layer, exiting.\n");\r
 443                 exit(1);\r
 444         }\r
 445 \r
 446         xenv_init(NULL, "PicoDrive " VERSION);\r
 447 \r
 448         w = h = 0;\r
 449         main_fb = vout_fbdev_init(main_fb_name, &w, &h, 16, 2);\r
 450         if (main_fb == NULL) {\r
 451                 fprintf(stderr, "couldn't init fb: %s\n", main_fb_name);\r
 452                 exit(1);\r
 453         }\r
 454 \r
 455         g_menuscreen_w = w;\r
 456         g_menuscreen_h = h;\r
 457         g_menuscreen_ptr = vout_fbdev_flip(main_fb);\r
 458 \r
 459         w = 320; h = 240;\r
 460         layer_fb = vout_fbdev_init(layer_fb_name, &w, &h, 16, 4);\r
 461         if (layer_fb == NULL) {\r
 462                 fprintf(stderr, "couldn't init fb: %s\n", layer_fb_name);\r
 463                 goto fail0;\r
 464         }\r
 465 \r
 466         if (w != g_screen_width || h != g_screen_height) {\r
 467                 fprintf(stderr, "%dx%d not supported on %s\n", w, h, layer_fb_name);\r
 468                 goto fail1;\r
 469         }\r
 470         g_screen_ptr = vout_fbdev_flip(layer_fb);\r
 471 \r
 472         temp_frame = calloc(g_menuscreen_w * g_menuscreen_h * 2, 1);\r
 473         if (temp_frame == NULL) {\r
 474                 fprintf(stderr, "OOM\n");\r
 475                 goto fail1;\r
 476         }\r
 477         g_menubg_ptr = temp_frame;\r
 478         g_menubg_src_ptr = temp_frame;\r
 479 \r
 480         pnd_menu_init();\r
 481 \r
 482         in_evdev_init(in_evdev_defbinds);\r
 483         in_probe();\r
 484         plat_target_setup_input();\r
 485 \r
 486         sndout_oss_frag_frames = 2;\r
 487 \r
 488         return;\r
 489 \r
 490 fail1:\r
 491         vout_fbdev_finish(layer_fb);\r
 492 fail0:\r
 493         vout_fbdev_finish(main_fb);\r
 494         exit(1);\r
 495 }\r
 496 \r
 497 void plat_finish(void)\r
 498 {\r
 499         vout_fbdev_finish(main_fb);\r
 500         xenv_finish();\r
 501 \r
 502         printf("all done\n");\r
 503 }\r
 504 \r