| 1 | /* |
| 2 | Parts used from cpuctrl, Copyright (C) 2005 Hermes/PS2Reality |
| 3 | Portions Copyright (C) 2009 notaz |
| 4 | |
| 5 | This program is free software; you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 2 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | #define _GNU_SOURCE 1 |
| 23 | #include "../common.h" |
| 24 | #include <sys/mman.h> |
| 25 | #include <sys/ioctl.h> |
| 26 | #include <sys/soundcard.h> |
| 27 | #include <sys/types.h> |
| 28 | #include <unistd.h> |
| 29 | #include <ctype.h> |
| 30 | #include <linux/input.h> |
| 31 | #include "gp2x.h" |
| 32 | #include "pollux_dpc_set.h" |
| 33 | |
| 34 | static u32 gpsp_gp2x_dev_audio; |
| 35 | static u32 gpsp_gp2x_dev; |
| 36 | #ifdef POLLUX_BUILD |
| 37 | static u32 gpsp_gp2x_indev; |
| 38 | static u32 saved_405c, saved_4060, saved_4058; |
| 39 | #endif |
| 40 | |
| 41 | static u32 gp2x_audio_volume = 74/2; |
| 42 | |
| 43 | static volatile u16 *gpsp_gp2x_memregs; |
| 44 | static volatile u32 *gpsp_gp2x_memregl; |
| 45 | |
| 46 | u32 button_plat_mask_to_config[PLAT_BUTTON_COUNT] = |
| 47 | { |
| 48 | GP2X_UP, |
| 49 | GP2X_LEFT, |
| 50 | GP2X_DOWN, |
| 51 | GP2X_RIGHT, |
| 52 | GP2X_START, |
| 53 | GP2X_SELECT, |
| 54 | GP2X_L, |
| 55 | GP2X_R, |
| 56 | GP2X_A, |
| 57 | GP2X_B, |
| 58 | GP2X_X, |
| 59 | GP2X_Y, |
| 60 | #if defined(POLLUX_BUILD) && !defined(WIZ_BUILD) |
| 61 | 0, |
| 62 | 0, |
| 63 | GP2X_PUSH, |
| 64 | GP2X_HOME, |
| 65 | #else |
| 66 | GP2X_VOL_DOWN, |
| 67 | GP2X_VOL_UP, |
| 68 | GP2X_PUSH, |
| 69 | GP2X_VOL_MIDDLE |
| 70 | #endif |
| 71 | }; |
| 72 | |
| 73 | u32 gamepad_config_map[PLAT_BUTTON_COUNT] = |
| 74 | { |
| 75 | BUTTON_ID_UP, // Up |
| 76 | BUTTON_ID_LEFT, // Left |
| 77 | BUTTON_ID_DOWN, // Down |
| 78 | BUTTON_ID_RIGHT, // Right |
| 79 | BUTTON_ID_START, // Start |
| 80 | BUTTON_ID_SELECT, // Select |
| 81 | BUTTON_ID_L, // Ltrigger |
| 82 | BUTTON_ID_R, // Rtrigger |
| 83 | BUTTON_ID_FPS, // A |
| 84 | BUTTON_ID_A, // B |
| 85 | BUTTON_ID_B, // X |
| 86 | BUTTON_ID_MENU, // Y |
| 87 | BUTTON_ID_VOLDOWN, // Vol down |
| 88 | BUTTON_ID_VOLUP, // Vol up |
| 89 | BUTTON_ID_FPS, // Push |
| 90 | BUTTON_ID_MENU // Vol middle / Home |
| 91 | }; |
| 92 | |
| 93 | #ifdef POLLUX_BUILD |
| 94 | #include <linux/fb.h> |
| 95 | void *gpsp_gp2x_screen; |
| 96 | #define fb_buf_count 4 |
| 97 | static u32 fb_paddr[fb_buf_count]; |
| 98 | static void *fb_vaddr[fb_buf_count]; |
| 99 | static u32 fb_work_buf; |
| 100 | static int fb_buf_use; |
| 101 | static int fbdev; |
| 102 | |
| 103 | static void fb_video_init() |
| 104 | { |
| 105 | struct fb_fix_screeninfo fbfix; |
| 106 | unsigned int r; |
| 107 | int i, ret; |
| 108 | |
| 109 | fbdev = open("/dev/fb0", O_RDWR); |
| 110 | if (fbdev < 0) { |
| 111 | perror("can't open fbdev"); |
| 112 | exit(1); |
| 113 | } |
| 114 | |
| 115 | ret = ioctl(fbdev, FBIOGET_FSCREENINFO, &fbfix); |
| 116 | if (ret == -1) |
| 117 | { |
| 118 | perror("ioctl(fbdev) failed"); |
| 119 | exit(1); |
| 120 | } |
| 121 | |
| 122 | printf("framebuffer: \"%s\" @ %08lx\n", fbfix.id, fbfix.smem_start); |
| 123 | fb_paddr[0] = fbfix.smem_start; |
| 124 | |
| 125 | fb_vaddr[0] = mmap(0, 320*240*2*fb_buf_count, PROT_READ|PROT_WRITE, |
| 126 | MAP_SHARED, gpsp_gp2x_dev, fb_paddr[0]); |
| 127 | if (fb_vaddr[0] == MAP_FAILED) |
| 128 | { |
| 129 | perror("mmap(fb_vaddr) failed"); |
| 130 | exit(1); |
| 131 | } |
| 132 | memset(fb_vaddr[0], 0, 320*240*2*fb_buf_count); |
| 133 | |
| 134 | printf(" %p -> %08x\n", fb_vaddr[0], fb_paddr[0]); |
| 135 | for (i = 1; i < fb_buf_count; i++) |
| 136 | { |
| 137 | fb_paddr[i] = fb_paddr[i-1] + 320*240*2; |
| 138 | fb_vaddr[i] = (char *)fb_vaddr[i-1] + 320*240*2; |
| 139 | printf(" %p -> %08x\n", fb_vaddr[i], fb_paddr[i]); |
| 140 | } |
| 141 | fb_work_buf = 0; |
| 142 | fb_buf_use = fb_buf_count; |
| 143 | |
| 144 | saved_405c = gpsp_gp2x_memregl[0x405c>>2]; |
| 145 | saved_4060 = gpsp_gp2x_memregl[0x4060>>2]; |
| 146 | saved_4058 = gpsp_gp2x_memregl[0x4058>>2]; |
| 147 | |
| 148 | // set mode; program both MLCs so that TV-out works |
| 149 | gpsp_gp2x_memregl[0x405c>>2] = gpsp_gp2x_memregl[0x445c>>2] = 2; |
| 150 | gpsp_gp2x_memregl[0x4060>>2] = gpsp_gp2x_memregl[0x4460>>2] = 320 * 2; |
| 151 | |
| 152 | r = gpsp_gp2x_memregl[0x4058>>2]; |
| 153 | r = (r & 0xffff) | (0x4432 << 16) | 0x10; |
| 154 | gpsp_gp2x_memregl[0x4058>>2] = r; |
| 155 | |
| 156 | r = gpsp_gp2x_memregl[0x4458>>2]; |
| 157 | r = (r & 0xffff) | (0x4432 << 16) | 0x10; |
| 158 | gpsp_gp2x_memregl[0x4458>>2] = r; |
| 159 | |
| 160 | pollux_video_flip(); |
| 161 | warm_change_cb_upper(WCB_C_BIT|WCB_B_BIT, 1); |
| 162 | } |
| 163 | |
| 164 | void pollux_video_flip() |
| 165 | { |
| 166 | gpsp_gp2x_memregl[0x406C>>2] = |
| 167 | gpsp_gp2x_memregl[0x446C>>2] = fb_paddr[fb_work_buf]; |
| 168 | gpsp_gp2x_memregl[0x4058>>2] |= 0x10; |
| 169 | gpsp_gp2x_memregl[0x4458>>2] |= 0x10; |
| 170 | fb_work_buf++; |
| 171 | if (fb_work_buf >= fb_buf_use) |
| 172 | fb_work_buf = 0; |
| 173 | gpsp_gp2x_screen = fb_vaddr[fb_work_buf]; |
| 174 | } |
| 175 | |
| 176 | void fb_use_buffers(int count) |
| 177 | { |
| 178 | if (count < 1) |
| 179 | count = 1; |
| 180 | else if (count > fb_buf_count) |
| 181 | count = fb_buf_count; |
| 182 | fb_buf_use = count; |
| 183 | memset(fb_vaddr[0], 0, 320*240*2*count); |
| 184 | } |
| 185 | |
| 186 | void wiz_lcd_set_portrait(int y) |
| 187 | { |
| 188 | char *dpc_settings; |
| 189 | #ifdef WIZ_BUILD |
| 190 | static int old_y = -1; |
| 191 | int cmd[2] = { 0, 0 }; |
| 192 | |
| 193 | if (old_y == y) |
| 194 | return; |
| 195 | cmd[0] = y ? 6 : 5; |
| 196 | ioctl(fbdev, _IOW('D', 90, int[2]), cmd); |
| 197 | gpsp_gp2x_memregl[0x4004>>2] = y ? 0x013f00ef : 0x00ef013f; |
| 198 | gpsp_gp2x_memregl[0x4000>>2] |= 1 << 3; |
| 199 | old_y = y; |
| 200 | |
| 201 | /* the above ioctl resets LCD timings, so set them here */ |
| 202 | #endif |
| 203 | |
| 204 | dpc_settings = getenv("pollux_dpc_set"); |
| 205 | if (dpc_settings != NULL) |
| 206 | pollux_dpc_set(gpsp_gp2x_memregs, dpc_settings); |
| 207 | } |
| 208 | |
| 209 | static void fb_video_exit() |
| 210 | { |
| 211 | /* switch to default fb mem, turn portrait off */ |
| 212 | gpsp_gp2x_memregl[0x406c>>2] = fb_paddr[0]; |
| 213 | gpsp_gp2x_memregl[0x405c>>2] = saved_405c; |
| 214 | gpsp_gp2x_memregl[0x4060>>2] = saved_4060; |
| 215 | gpsp_gp2x_memregl[0x4058>>2] = saved_4058 | 0x10; |
| 216 | wiz_lcd_set_portrait(0); |
| 217 | close(fbdev); |
| 218 | } |
| 219 | |
| 220 | static int wiz_gamepak_fd = -1; |
| 221 | static u32 wiz_gamepak_size; |
| 222 | |
| 223 | static void wiz_gamepak_cleanup() |
| 224 | { |
| 225 | if (wiz_gamepak_size) |
| 226 | munmap(gamepak_rom, wiz_gamepak_size); |
| 227 | if (wiz_gamepak_fd >= 0) |
| 228 | close(wiz_gamepak_fd); |
| 229 | gamepak_rom = NULL; |
| 230 | wiz_gamepak_size = 0; |
| 231 | wiz_gamepak_fd = -1; |
| 232 | } |
| 233 | |
| 234 | u32 wiz_load_gamepak(char *name) |
| 235 | { |
| 236 | char *dot_position = strrchr(name, '.'); |
| 237 | u32 ret; |
| 238 | |
| 239 | if (!strcasecmp(dot_position, ".zip")) |
| 240 | { |
| 241 | if (wiz_gamepak_fd >= 0) |
| 242 | { |
| 243 | wiz_gamepak_cleanup(); |
| 244 | printf("switching to ROM malloc\n"); |
| 245 | init_gamepak_buffer(); |
| 246 | } |
| 247 | return load_file_zip(name); |
| 248 | } |
| 249 | |
| 250 | if (wiz_gamepak_fd < 0) |
| 251 | { |
| 252 | extern void *gamepak_memory_map; |
| 253 | free(gamepak_rom); |
| 254 | free(gamepak_memory_map); |
| 255 | gamepak_memory_map = NULL; |
| 256 | printf("switching to ROM mmap\n"); |
| 257 | } |
| 258 | else |
| 259 | wiz_gamepak_cleanup(); |
| 260 | |
| 261 | wiz_gamepak_fd = open(name, O_RDONLY|O_NOATIME, S_IRUSR); |
| 262 | if (wiz_gamepak_fd < 0) |
| 263 | { |
| 264 | perror("wiz_load_gamepak: open failed"); |
| 265 | return -1; |
| 266 | } |
| 267 | |
| 268 | ret = lseek(wiz_gamepak_fd, 0, SEEK_END); |
| 269 | wiz_gamepak_size = gamepak_ram_buffer_size = ret; |
| 270 | |
| 271 | gamepak_rom = mmap(0, ret, PROT_READ, MAP_SHARED, wiz_gamepak_fd, 0); |
| 272 | if (gamepak_rom == MAP_FAILED) |
| 273 | { |
| 274 | perror("wiz_load_gamepak: mmap failed"); |
| 275 | return -1; |
| 276 | } |
| 277 | |
| 278 | return ret; |
| 279 | } |
| 280 | |
| 281 | #define KEYBITS_BIT(x) (keybits[(x)/sizeof(keybits[0])/8] & \ |
| 282 | (1 << ((x) & (sizeof(keybits[0])*8-1)))) |
| 283 | |
| 284 | static int abs_min, abs_max, lzone_step; |
| 285 | |
| 286 | static int open_caanoo_pad(void) |
| 287 | { |
| 288 | long keybits[KEY_CNT / sizeof(long) / 8]; |
| 289 | long absbits[(ABS_MAX+1) / sizeof(long) / 8]; |
| 290 | struct input_absinfo ainfo; |
| 291 | int fd = -1, i; |
| 292 | |
| 293 | memset(keybits, 0, sizeof(keybits)); |
| 294 | memset(absbits, 0, sizeof(absbits)); |
| 295 | |
| 296 | for (i = 0;; i++) |
| 297 | { |
| 298 | int support = 0, need; |
| 299 | int ret; |
| 300 | char name[64]; |
| 301 | |
| 302 | snprintf(name, sizeof(name), "/dev/input/event%d", i); |
| 303 | fd = open(name, O_RDONLY|O_NONBLOCK); |
| 304 | if (fd == -1) |
| 305 | break; |
| 306 | |
| 307 | /* check supported events */ |
| 308 | ret = ioctl(fd, EVIOCGBIT(0, sizeof(support)), &support); |
| 309 | if (ret == -1) { |
| 310 | printf("in_evdev: ioctl failed on %s\n", name); |
| 311 | goto skip; |
| 312 | } |
| 313 | |
| 314 | need = (1 << EV_KEY) | (1 << EV_ABS); |
| 315 | if ((support & need) != need) |
| 316 | goto skip; |
| 317 | |
| 318 | ret = ioctl(fd, EVIOCGBIT(EV_KEY, sizeof(keybits)), keybits); |
| 319 | if (ret == -1) { |
| 320 | printf("in_evdev: ioctl failed on %s\n", name); |
| 321 | goto skip; |
| 322 | } |
| 323 | |
| 324 | if (!KEYBITS_BIT(BTN_JOYSTICK)) |
| 325 | goto skip; |
| 326 | |
| 327 | ret = ioctl(fd, EVIOCGABS(ABS_X), &ainfo); |
| 328 | if (ret == -1) |
| 329 | goto skip; |
| 330 | |
| 331 | abs_min = ainfo.minimum; |
| 332 | abs_max = ainfo.maximum; |
| 333 | lzone_step = (abs_max - abs_min) / 2 / 9; |
| 334 | |
| 335 | ioctl(fd, EVIOCGNAME(sizeof(name)), name); |
| 336 | printf("using \"%s\" (type %08x)\n", name, support); |
| 337 | break; |
| 338 | |
| 339 | skip: |
| 340 | close(fd); |
| 341 | fd = -1; |
| 342 | } |
| 343 | |
| 344 | if (fd == -1) { |
| 345 | printf("missing input device\n"); |
| 346 | exit(1); |
| 347 | } |
| 348 | |
| 349 | return fd; |
| 350 | } |
| 351 | #endif // POLLUX_BUILD |
| 352 | |
| 353 | void gpsp_plat_init(void) |
| 354 | { |
| 355 | gpsp_gp2x_dev = open("/dev/mem", O_RDWR); |
| 356 | gpsp_gp2x_dev_audio = open("/dev/mixer", O_RDWR); |
| 357 | gpsp_gp2x_memregl = (u32 *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, |
| 358 | gpsp_gp2x_dev, 0xc0000000); |
| 359 | gpsp_gp2x_memregs = (u16 *)gpsp_gp2x_memregl; |
| 360 | warm_init(); |
| 361 | #ifdef POLLUX_BUILD |
| 362 | #ifdef WIZ_BUILD |
| 363 | gpsp_gp2x_indev = open("/dev/GPIO", O_RDONLY); |
| 364 | #else |
| 365 | gpsp_gp2x_indev = open_caanoo_pad(); |
| 366 | #endif |
| 367 | fb_video_init(); |
| 368 | (void)open_caanoo_pad; |
| 369 | #endif |
| 370 | |
| 371 | gp2x_sound_volume(1); |
| 372 | } |
| 373 | |
| 374 | void gpsp_plat_quit(void) |
| 375 | { |
| 376 | chdir(main_path); |
| 377 | |
| 378 | warm_finish(); |
| 379 | #ifdef POLLUX_BUILD |
| 380 | wiz_gamepak_cleanup(); |
| 381 | close(gpsp_gp2x_indev); |
| 382 | fb_video_exit(); |
| 383 | #endif |
| 384 | munmap((void *)gpsp_gp2x_memregl, 0x10000); |
| 385 | close(gpsp_gp2x_dev_audio); |
| 386 | close(gpsp_gp2x_dev); |
| 387 | |
| 388 | fcloseall(); |
| 389 | sync(); |
| 390 | exit(0); |
| 391 | } |
| 392 | |
| 393 | void gp2x_sound_volume(u32 volume_up) |
| 394 | { |
| 395 | u32 volume; |
| 396 | if((volume_up == 0) && (gp2x_audio_volume > 0)) |
| 397 | gp2x_audio_volume--; |
| 398 | |
| 399 | if((volume_up != 0) && (gp2x_audio_volume < 100)) |
| 400 | gp2x_audio_volume++; |
| 401 | |
| 402 | volume = (gp2x_audio_volume * 0x50) / 100; |
| 403 | volume = (gp2x_audio_volume << 8) | gp2x_audio_volume; |
| 404 | ioctl(gpsp_gp2x_dev_audio, SOUND_MIXER_WRITE_PCM, &volume); |
| 405 | } |
| 406 | |
| 407 | u32 gpsp_plat_joystick_read(void) |
| 408 | { |
| 409 | #ifdef WIZ_BUILD |
| 410 | u32 value = 0; |
| 411 | read(gpsp_gp2x_indev, &value, 4); |
| 412 | if(value & 0x02) |
| 413 | value |= 0x05; |
| 414 | if(value & 0x08) |
| 415 | value |= 0x14; |
| 416 | if(value & 0x20) |
| 417 | value |= 0x50; |
| 418 | if(value & 0x80) |
| 419 | value |= 0x41; |
| 420 | return value; |
| 421 | #elif defined(POLLUX_BUILD) |
| 422 | // caanoo |
| 423 | static const int evdev_to_gp2x[] = { |
| 424 | GP2X_A, GP2X_X, GP2X_B, GP2X_Y, GP2X_L, GP2X_R, |
| 425 | GP2X_HOME, 0, GP2X_START, GP2X_SELECT, GP2X_PUSH |
| 426 | }; |
| 427 | int keybits[KEY_CNT / sizeof(int)]; |
| 428 | struct input_absinfo ainfo; |
| 429 | int lzone = analog_sensitivity_level * lzone_step; |
| 430 | u32 retval = 0; |
| 431 | int i, ret; |
| 432 | |
| 433 | ret = ioctl(gpsp_gp2x_indev, EVIOCGKEY(sizeof(keybits)), keybits); |
| 434 | if (ret == -1) { |
| 435 | perror("EVIOCGKEY ioctl failed"); |
| 436 | sleep(1); |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | for (i = 0; i < sizeof(evdev_to_gp2x) / sizeof(evdev_to_gp2x[0]); i++) { |
| 441 | if (KEYBITS_BIT(BTN_TRIGGER + i)) |
| 442 | retval |= evdev_to_gp2x[i]; |
| 443 | } |
| 444 | |
| 445 | if (lzone != 0) |
| 446 | lzone--; |
| 447 | |
| 448 | ret = ioctl(gpsp_gp2x_indev, EVIOCGABS(ABS_X), &ainfo); |
| 449 | if (ret != -1) { |
| 450 | if (ainfo.value <= abs_min + lzone) retval |= GP2X_LEFT; |
| 451 | else if (ainfo.value >= abs_max - lzone) retval |= GP2X_RIGHT; |
| 452 | } |
| 453 | ret = ioctl(gpsp_gp2x_indev, EVIOCGABS(ABS_Y), &ainfo); |
| 454 | if (ret != -1) { |
| 455 | if (ainfo.value <= abs_min + lzone) retval |= GP2X_UP; |
| 456 | else if (ainfo.value >= abs_max - lzone) retval |= GP2X_DOWN; |
| 457 | } |
| 458 | |
| 459 | return retval; |
| 460 | #else |
| 461 | // GP2X |
| 462 | u32 value = (gpsp_gp2x_memregs[0x1198 >> 1] & 0x00FF); |
| 463 | |
| 464 | if(value == 0xFD) |
| 465 | value = 0xFA; |
| 466 | if(value == 0xF7) |
| 467 | value = 0xEB; |
| 468 | if(value == 0xDF) |
| 469 | value = 0xAF; |
| 470 | if(value == 0x7F) |
| 471 | value = 0xBE; |
| 472 | |
| 473 | return ~((gpsp_gp2x_memregs[0x1184 >> 1] & 0xFF00) | value | |
| 474 | (gpsp_gp2x_memregs[0x1186 >> 1] << 16)); |
| 475 | #endif |
| 476 | } |
| 477 | |
| 478 | u32 gpsp_plat_buttons_to_cursor(u32 buttons) |
| 479 | { |
| 480 | gui_action_type new_button = CURSOR_NONE; |
| 481 | |
| 482 | if(buttons & GP2X_A) |
| 483 | new_button = CURSOR_BACK; |
| 484 | |
| 485 | if(buttons & GP2X_X) |
| 486 | new_button = CURSOR_EXIT; |
| 487 | |
| 488 | if(buttons & GP2X_B) |
| 489 | new_button = CURSOR_SELECT; |
| 490 | |
| 491 | if(buttons & GP2X_UP) |
| 492 | new_button = CURSOR_UP; |
| 493 | |
| 494 | if(buttons & GP2X_DOWN) |
| 495 | new_button = CURSOR_DOWN; |
| 496 | |
| 497 | if(buttons & GP2X_LEFT) |
| 498 | new_button = CURSOR_LEFT; |
| 499 | |
| 500 | if(buttons & GP2X_RIGHT) |
| 501 | new_button = CURSOR_RIGHT; |
| 502 | |
| 503 | if(buttons & GP2X_L) |
| 504 | new_button = CURSOR_L; |
| 505 | |
| 506 | if(buttons & GP2X_R) |
| 507 | new_button = CURSOR_R; |
| 508 | |
| 509 | return new_button; |
| 510 | } |
| 511 | |
| 512 | // Fout = (m * Fin) / (p * 2^s) |
| 513 | void set_FCLK(u32 MHZ) |
| 514 | { |
| 515 | u32 v; |
| 516 | u32 mdiv, pdiv, sdiv = 0; |
| 517 | #ifdef POLLUX_BUILD |
| 518 | int i; |
| 519 | #define SYS_CLK_FREQ 27 |
| 520 | // m = MDIV, p = PDIV, s = SDIV |
| 521 | pdiv = 9; |
| 522 | mdiv = (MHZ * pdiv) / SYS_CLK_FREQ; |
| 523 | if (mdiv & ~0x3ff) |
| 524 | return; |
| 525 | v = (pdiv<<18) | (mdiv<<8) | sdiv; |
| 526 | |
| 527 | gpsp_gp2x_memregl[0xf004>>2] = v; |
| 528 | gpsp_gp2x_memregl[0xf07c>>2] |= 0x8000; |
| 529 | for (i = 0; (gpsp_gp2x_memregl[0xf07c>>2] & 0x8000) && i < 0x100000; i++) |
| 530 | ; |
| 531 | |
| 532 | // must restart sound as it's PLL is shared with CPU one |
| 533 | sound_exit(); |
| 534 | init_sound(0); |
| 535 | #else |
| 536 | #define SYS_CLK_FREQ 7372800 |
| 537 | // m = MDIV + 8, p = PDIV + 2, s = SDIV |
| 538 | pdiv = 3; |
| 539 | mdiv = (MHZ * pdiv * 1000000) / SYS_CLK_FREQ; |
| 540 | mdiv &= 0xff; |
| 541 | v = ((mdiv-8)<<8) | ((pdiv-2)<<2) | sdiv; |
| 542 | gpsp_gp2x_memregs[0x910>>1] = v; |
| 543 | #endif |
| 544 | } |
| 545 | |