| 1 | /*************************************************************************** |
| 2 | * Copyright (C) 2007 Ryan Schultz, PCSX-df Team, PCSX team * |
| 3 | * * |
| 4 | * This program is free software; you can redistribute it and/or modify * |
| 5 | * it under the terms of the GNU General Public License as published by * |
| 6 | * the Free Software Foundation; either version 2 of the License, or * |
| 7 | * (at your option) any later version. * |
| 8 | * * |
| 9 | * This program is distributed in the hope that it will be useful, * |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 12 | * GNU General Public License for more details. * |
| 13 | * * |
| 14 | * You should have received a copy of the GNU General Public License * |
| 15 | * along with this program; if not, write to the * |
| 16 | * Free Software Foundation, Inc., * |
| 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA. * |
| 18 | ***************************************************************************/ |
| 19 | |
| 20 | /* |
| 21 | * Handles all CD-ROM registers and functions. |
| 22 | */ |
| 23 | |
| 24 | #include "cdrom.h" |
| 25 | #include "ppf.h" |
| 26 | |
| 27 | cdrStruct cdr; |
| 28 | |
| 29 | /* CD-ROM magic numbers */ |
| 30 | #define CdlSync 0 |
| 31 | #define CdlNop 1 |
| 32 | #define CdlSetloc 2 |
| 33 | #define CdlPlay 3 |
| 34 | #define CdlForward 4 |
| 35 | #define CdlBackward 5 |
| 36 | #define CdlReadN 6 |
| 37 | #define CdlStandby 7 |
| 38 | #define CdlStop 8 |
| 39 | #define CdlPause 9 |
| 40 | #define CdlInit 10 |
| 41 | #define CdlMute 11 |
| 42 | #define CdlDemute 12 |
| 43 | #define CdlSetfilter 13 |
| 44 | #define CdlSetmode 14 |
| 45 | #define CdlGetmode 15 |
| 46 | #define CdlGetlocL 16 |
| 47 | #define CdlGetlocP 17 |
| 48 | #define CdlReadT 18 |
| 49 | #define CdlGetTN 19 |
| 50 | #define CdlGetTD 20 |
| 51 | #define CdlSeekL 21 |
| 52 | #define CdlSeekP 22 |
| 53 | #define CdlSetclock 23 |
| 54 | #define CdlGetclock 24 |
| 55 | #define CdlTest 25 |
| 56 | #define CdlID 26 |
| 57 | #define CdlReadS 27 |
| 58 | #define CdlReset 28 |
| 59 | #define CdlReadToc 30 |
| 60 | |
| 61 | #define AUTOPAUSE 249 |
| 62 | #define READ_ACK 250 |
| 63 | #define READ 251 |
| 64 | #define REPPLAY_ACK 252 |
| 65 | #define REPPLAY 253 |
| 66 | #define ASYNC 254 |
| 67 | /* don't set 255, it's reserved */ |
| 68 | |
| 69 | char *CmdName[0x100]= { |
| 70 | "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay", |
| 71 | "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby", |
| 72 | "CdlStop", "CdlPause", "CdlInit", "CdlMute", |
| 73 | "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode", |
| 74 | "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN", |
| 75 | "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock", |
| 76 | "CdlGetclock", "CdlTest", "CdlID", "CdlReadS", |
| 77 | "CdlReset", NULL, "CDlReadToc", NULL |
| 78 | }; |
| 79 | |
| 80 | unsigned char Test04[] = { 0 }; |
| 81 | unsigned char Test05[] = { 0 }; |
| 82 | unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 }; |
| 83 | unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F }; |
| 84 | unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 }; |
| 85 | |
| 86 | // 1x = 75 sectors per second |
| 87 | // PSXCLK = 1 sec in the ps |
| 88 | // so (PSXCLK / 75) = cdr read time (linuzappz) |
| 89 | #define cdReadTime (PSXCLK / 75) |
| 90 | |
| 91 | static struct CdrStat stat; |
| 92 | static struct SubQ *subq; |
| 93 | |
| 94 | #define CDR_INT(eCycle) { \ |
| 95 | psxRegs.interrupt |= 0x4; \ |
| 96 | psxRegs.intCycle[2 + 1] = eCycle; \ |
| 97 | psxRegs.intCycle[2] = psxRegs.cycle; \ |
| 98 | new_dyna_set_event(0, eCycle); \ |
| 99 | } |
| 100 | |
| 101 | #define CDREAD_INT(eCycle) { \ |
| 102 | psxRegs.interrupt |= 0x40000; \ |
| 103 | psxRegs.intCycle[2 + 16 + 1] = eCycle; \ |
| 104 | psxRegs.intCycle[2 + 16] = psxRegs.cycle; \ |
| 105 | new_dyna_set_event(2, eCycle); \ |
| 106 | } |
| 107 | |
| 108 | #define StartReading(type, eCycle) { \ |
| 109 | cdr.Reading = type; \ |
| 110 | cdr.FirstSector = 1; \ |
| 111 | cdr.Readed = 0xff; \ |
| 112 | AddIrqQueue(READ_ACK, eCycle); \ |
| 113 | } |
| 114 | |
| 115 | #define StopReading() { \ |
| 116 | if (cdr.Reading) { \ |
| 117 | cdr.Reading = 0; \ |
| 118 | psxRegs.interrupt &= ~0x40000; \ |
| 119 | } \ |
| 120 | cdr.StatP &= ~0x20;\ |
| 121 | } |
| 122 | |
| 123 | #define StopCdda() { \ |
| 124 | if (cdr.Play) { \ |
| 125 | if (!Config.Cdda) CDR_stop(); \ |
| 126 | cdr.StatP &= ~0x80; \ |
| 127 | cdr.Play = FALSE; \ |
| 128 | } \ |
| 129 | } |
| 130 | |
| 131 | #define SetResultSize(size) { \ |
| 132 | cdr.ResultP = 0; \ |
| 133 | cdr.ResultC = size; \ |
| 134 | cdr.ResultReady = 1; \ |
| 135 | } |
| 136 | |
| 137 | static void ReadTrack() { |
| 138 | cdr.Prev[0] = itob(cdr.SetSector[0]); |
| 139 | cdr.Prev[1] = itob(cdr.SetSector[1]); |
| 140 | cdr.Prev[2] = itob(cdr.SetSector[2]); |
| 141 | |
| 142 | #ifdef CDR_LOG |
| 143 | CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]); |
| 144 | #endif |
| 145 | cdr.RErr = CDR_readTrack(cdr.Prev); |
| 146 | } |
| 147 | |
| 148 | // cdr.Stat: |
| 149 | #define NoIntr 0 |
| 150 | #define DataReady 1 |
| 151 | #define Complete 2 |
| 152 | #define Acknowledge 3 |
| 153 | #define DataEnd 4 |
| 154 | #define DiskError 5 |
| 155 | |
| 156 | void AddIrqQueue(unsigned char irq, unsigned long ecycle) { |
| 157 | cdr.Irq = irq; |
| 158 | if (cdr.Stat) { |
| 159 | cdr.eCycle = ecycle; |
| 160 | } else { |
| 161 | CDR_INT(ecycle); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | void cdrInterrupt() { |
| 166 | int i; |
| 167 | unsigned char Irq = cdr.Irq; |
| 168 | |
| 169 | if (cdr.Stat) { |
| 170 | CDR_INT(0x1000); |
| 171 | return; |
| 172 | } |
| 173 | |
| 174 | cdr.Irq = 0xff; |
| 175 | cdr.Ctrl &= ~0x80; |
| 176 | |
| 177 | switch (Irq) { |
| 178 | case CdlSync: |
| 179 | SetResultSize(1); |
| 180 | cdr.StatP |= 0x2; |
| 181 | cdr.Result[0] = cdr.StatP; |
| 182 | cdr.Stat = Acknowledge; |
| 183 | break; |
| 184 | |
| 185 | case CdlNop: |
| 186 | SetResultSize(1); |
| 187 | cdr.Result[0] = cdr.StatP; |
| 188 | cdr.Stat = Acknowledge; |
| 189 | i = stat.Status; |
| 190 | if (CDR_getStatus(&stat) != -1) { |
| 191 | if (stat.Type == 0xff) cdr.Stat = DiskError; |
| 192 | if (stat.Status & 0x10) { |
| 193 | cdr.Stat = DiskError; |
| 194 | cdr.Result[0] |= 0x11; |
| 195 | cdr.Result[0] &= ~0x02; |
| 196 | } |
| 197 | else if (i & 0x10) { |
| 198 | cdr.StatP |= 0x2; |
| 199 | cdr.Result[0] |= 0x2; |
| 200 | CheckCdrom(); |
| 201 | } |
| 202 | } |
| 203 | break; |
| 204 | |
| 205 | case CdlSetloc: |
| 206 | cdr.CmdProcess = 0; |
| 207 | SetResultSize(1); |
| 208 | cdr.StatP |= 0x2; |
| 209 | cdr.Result[0] = cdr.StatP; |
| 210 | cdr.Stat = Acknowledge; |
| 211 | break; |
| 212 | |
| 213 | case CdlPlay: |
| 214 | cdr.CmdProcess = 0; |
| 215 | SetResultSize(1); |
| 216 | cdr.StatP |= 0x2; |
| 217 | cdr.Result[0] = cdr.StatP; |
| 218 | cdr.Stat = Acknowledge; |
| 219 | cdr.StatP |= 0x80; |
| 220 | // if ((cdr.Mode & 0x5) == 0x5) AddIrqQueue(REPPLAY, cdReadTime); |
| 221 | break; |
| 222 | |
| 223 | case CdlForward: |
| 224 | cdr.CmdProcess = 0; |
| 225 | SetResultSize(1); |
| 226 | cdr.StatP |= 0x2; |
| 227 | cdr.Result[0] = cdr.StatP; |
| 228 | cdr.Stat = Complete; |
| 229 | break; |
| 230 | |
| 231 | case CdlBackward: |
| 232 | cdr.CmdProcess = 0; |
| 233 | SetResultSize(1); |
| 234 | cdr.StatP |= 0x2; |
| 235 | cdr.Result[0] = cdr.StatP; |
| 236 | cdr.Stat = Complete; |
| 237 | break; |
| 238 | |
| 239 | case CdlStandby: |
| 240 | cdr.CmdProcess = 0; |
| 241 | SetResultSize(1); |
| 242 | cdr.StatP |= 0x2; |
| 243 | cdr.Result[0] = cdr.StatP; |
| 244 | cdr.Stat = Complete; |
| 245 | break; |
| 246 | |
| 247 | case CdlStop: |
| 248 | cdr.CmdProcess = 0; |
| 249 | SetResultSize(1); |
| 250 | cdr.StatP &= ~0x2; |
| 251 | cdr.Result[0] = cdr.StatP; |
| 252 | cdr.Stat = Complete; |
| 253 | // cdr.Stat = Acknowledge; |
| 254 | |
| 255 | // check case open/close -shalma |
| 256 | i = stat.Status; |
| 257 | if (CDR_getStatus(&stat) != -1) { |
| 258 | if (stat.Type == 0xff) cdr.Stat = DiskError; |
| 259 | if (stat.Status & 0x10) { |
| 260 | cdr.Stat = DiskError; |
| 261 | cdr.Result[0] |= 0x11; |
| 262 | cdr.Result[0] &= ~0x02; |
| 263 | } |
| 264 | else if (i & 0x10) { |
| 265 | cdr.StatP |= 0x2; |
| 266 | cdr.Result[0] |= 0x2; |
| 267 | CheckCdrom(); |
| 268 | } |
| 269 | } |
| 270 | break; |
| 271 | |
| 272 | case CdlPause: |
| 273 | SetResultSize(1); |
| 274 | cdr.Result[0] = cdr.StatP; |
| 275 | cdr.Stat = Acknowledge; |
| 276 | AddIrqQueue(CdlPause + 0x20, 0x1000); |
| 277 | cdr.Ctrl |= 0x80; |
| 278 | break; |
| 279 | |
| 280 | case CdlPause + 0x20: |
| 281 | SetResultSize(1); |
| 282 | cdr.StatP &= ~0x20; |
| 283 | cdr.StatP |= 0x2; |
| 284 | cdr.Result[0] = cdr.StatP; |
| 285 | cdr.Stat = Complete; |
| 286 | break; |
| 287 | |
| 288 | case CdlInit: |
| 289 | SetResultSize(1); |
| 290 | cdr.StatP = 0x2; |
| 291 | cdr.Result[0] = cdr.StatP; |
| 292 | cdr.Stat = Acknowledge; |
| 293 | // if (!cdr.Init) { |
| 294 | AddIrqQueue(CdlInit + 0x20, 0x1000); |
| 295 | // } |
| 296 | break; |
| 297 | |
| 298 | case CdlInit + 0x20: |
| 299 | SetResultSize(1); |
| 300 | cdr.Result[0] = cdr.StatP; |
| 301 | cdr.Stat = Complete; |
| 302 | cdr.Init = 1; |
| 303 | break; |
| 304 | |
| 305 | case CdlMute: |
| 306 | SetResultSize(1); |
| 307 | cdr.StatP |= 0x2; |
| 308 | cdr.Result[0] = cdr.StatP; |
| 309 | cdr.Stat = Acknowledge; |
| 310 | break; |
| 311 | |
| 312 | case CdlDemute: |
| 313 | SetResultSize(1); |
| 314 | cdr.StatP |= 0x2; |
| 315 | cdr.Result[0] = cdr.StatP; |
| 316 | cdr.Stat = Acknowledge; |
| 317 | break; |
| 318 | |
| 319 | case CdlSetfilter: |
| 320 | SetResultSize(1); |
| 321 | cdr.StatP |= 0x2; |
| 322 | cdr.Result[0] = cdr.StatP; |
| 323 | cdr.Stat = Acknowledge; |
| 324 | break; |
| 325 | |
| 326 | case CdlSetmode: |
| 327 | SetResultSize(1); |
| 328 | cdr.StatP |= 0x2; |
| 329 | cdr.Result[0] = cdr.StatP; |
| 330 | cdr.Stat = Acknowledge; |
| 331 | break; |
| 332 | |
| 333 | case CdlGetmode: |
| 334 | SetResultSize(6); |
| 335 | cdr.StatP |= 0x2; |
| 336 | cdr.Result[0] = cdr.StatP; |
| 337 | cdr.Result[1] = cdr.Mode; |
| 338 | cdr.Result[2] = cdr.File; |
| 339 | cdr.Result[3] = cdr.Channel; |
| 340 | cdr.Result[4] = 0; |
| 341 | cdr.Result[5] = 0; |
| 342 | cdr.Stat = Acknowledge; |
| 343 | break; |
| 344 | |
| 345 | case CdlGetlocL: |
| 346 | SetResultSize(8); |
| 347 | // for (i = 0; i < 8; i++) |
| 348 | // cdr.Result[i] = itob(cdr.Transfer[i]); |
| 349 | for (i = 0; i < 8; i++) |
| 350 | cdr.Result[i] = cdr.Transfer[i]; |
| 351 | cdr.Stat = Acknowledge; |
| 352 | break; |
| 353 | |
| 354 | case CdlGetlocP: |
| 355 | SetResultSize(8); |
| 356 | subq = (struct SubQ *)CDR_getBufferSub(); |
| 357 | |
| 358 | if (subq != NULL) { |
| 359 | cdr.Result[0] = subq->TrackNumber; |
| 360 | cdr.Result[1] = subq->IndexNumber; |
| 361 | memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3); |
| 362 | memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3); |
| 363 | |
| 364 | // subQ integrity check |
| 365 | if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) { |
| 366 | memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data |
| 367 | } |
| 368 | } else { |
| 369 | cdr.Result[0] = 1; |
| 370 | cdr.Result[1] = 1; |
| 371 | |
| 372 | cdr.Result[2] = btoi(cdr.Prev[0]); |
| 373 | cdr.Result[3] = btoi(cdr.Prev[1]) - 2; |
| 374 | cdr.Result[4] = cdr.Prev[2]; |
| 375 | |
| 376 | // m:s adjustment |
| 377 | if ((s8)cdr.Result[3] < 0) { |
| 378 | cdr.Result[3] += 60; |
| 379 | cdr.Result[2] -= 1; |
| 380 | } |
| 381 | |
| 382 | cdr.Result[2] = itob(cdr.Result[2]); |
| 383 | cdr.Result[3] = itob(cdr.Result[3]); |
| 384 | |
| 385 | memcpy(cdr.Result + 5, cdr.Prev, 3); |
| 386 | } |
| 387 | |
| 388 | cdr.Stat = Acknowledge; |
| 389 | break; |
| 390 | |
| 391 | case CdlGetTN: |
| 392 | cdr.CmdProcess = 0; |
| 393 | SetResultSize(3); |
| 394 | cdr.StatP |= 0x2; |
| 395 | cdr.Result[0] = cdr.StatP; |
| 396 | if (CDR_getTN(cdr.ResultTN) == -1) { |
| 397 | cdr.Stat = DiskError; |
| 398 | cdr.Result[0] |= 0x01; |
| 399 | } else { |
| 400 | cdr.Stat = Acknowledge; |
| 401 | cdr.Result[1] = itob(cdr.ResultTN[0]); |
| 402 | cdr.Result[2] = itob(cdr.ResultTN[1]); |
| 403 | } |
| 404 | break; |
| 405 | |
| 406 | case CdlGetTD: |
| 407 | cdr.CmdProcess = 0; |
| 408 | cdr.Track = btoi(cdr.Param[0]); |
| 409 | SetResultSize(4); |
| 410 | cdr.StatP |= 0x2; |
| 411 | if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) { |
| 412 | cdr.Stat = DiskError; |
| 413 | cdr.Result[0] |= 0x01; |
| 414 | } else { |
| 415 | cdr.Stat = Acknowledge; |
| 416 | cdr.Result[0] = cdr.StatP; |
| 417 | cdr.Result[1] = itob(cdr.ResultTD[2]); |
| 418 | cdr.Result[2] = itob(cdr.ResultTD[1]); |
| 419 | cdr.Result[3] = itob(cdr.ResultTD[0]); |
| 420 | } |
| 421 | break; |
| 422 | |
| 423 | case CdlSeekL: |
| 424 | SetResultSize(1); |
| 425 | cdr.StatP |= 0x2; |
| 426 | cdr.Result[0] = cdr.StatP; |
| 427 | cdr.StatP |= 0x40; |
| 428 | cdr.Stat = Acknowledge; |
| 429 | cdr.Seeked = TRUE; |
| 430 | AddIrqQueue(CdlSeekL + 0x20, 0x1000); |
| 431 | break; |
| 432 | |
| 433 | case CdlSeekL + 0x20: |
| 434 | SetResultSize(1); |
| 435 | cdr.StatP |= 0x2; |
| 436 | cdr.StatP &= ~0x40; |
| 437 | cdr.Result[0] = cdr.StatP; |
| 438 | cdr.Stat = Complete; |
| 439 | break; |
| 440 | |
| 441 | case CdlSeekP: |
| 442 | SetResultSize(1); |
| 443 | cdr.StatP |= 0x2; |
| 444 | cdr.Result[0] = cdr.StatP; |
| 445 | cdr.StatP |= 0x40; |
| 446 | cdr.Stat = Acknowledge; |
| 447 | AddIrqQueue(CdlSeekP + 0x20, 0x1000); |
| 448 | break; |
| 449 | |
| 450 | case CdlSeekP + 0x20: |
| 451 | SetResultSize(1); |
| 452 | cdr.StatP |= 0x2; |
| 453 | cdr.StatP &= ~0x40; |
| 454 | cdr.Result[0] = cdr.StatP; |
| 455 | cdr.Stat = Complete; |
| 456 | break; |
| 457 | |
| 458 | case CdlTest: |
| 459 | cdr.Stat = Acknowledge; |
| 460 | switch (cdr.Param[0]) { |
| 461 | case 0x20: // System Controller ROM Version |
| 462 | SetResultSize(4); |
| 463 | memcpy(cdr.Result, Test20, 4); |
| 464 | break; |
| 465 | case 0x22: |
| 466 | SetResultSize(8); |
| 467 | memcpy(cdr.Result, Test22, 4); |
| 468 | break; |
| 469 | case 0x23: case 0x24: |
| 470 | SetResultSize(8); |
| 471 | memcpy(cdr.Result, Test23, 4); |
| 472 | break; |
| 473 | } |
| 474 | break; |
| 475 | |
| 476 | case CdlID: |
| 477 | SetResultSize(1); |
| 478 | cdr.StatP |= 0x2; |
| 479 | cdr.Result[0] = cdr.StatP; |
| 480 | cdr.Stat = Acknowledge; |
| 481 | AddIrqQueue(CdlID + 0x20, 0x1000); |
| 482 | break; |
| 483 | |
| 484 | case CdlID + 0x20: |
| 485 | SetResultSize(8); |
| 486 | if (CDR_getStatus(&stat) == -1) { |
| 487 | cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player |
| 488 | cdr.Result[1] = 0x00; // 0x80 leads to the menu in the bios, else loads CD |
| 489 | } |
| 490 | else { |
| 491 | if (stat.Type == 2) { |
| 492 | cdr.Result[0] = 0x08; |
| 493 | cdr.Result[1] = 0x10; |
| 494 | } |
| 495 | else { |
| 496 | cdr.Result[0] = 0x00; |
| 497 | cdr.Result[1] = 0x00; |
| 498 | } |
| 499 | } |
| 500 | cdr.Result[1] |= 0x80; |
| 501 | cdr.Result[2] = 0x00; |
| 502 | cdr.Result[3] = 0x00; |
| 503 | strncpy((char *)&cdr.Result[4], "PCSX", 4); |
| 504 | cdr.Stat = Complete; |
| 505 | break; |
| 506 | |
| 507 | case CdlReset: |
| 508 | SetResultSize(1); |
| 509 | cdr.StatP = 0x2; |
| 510 | cdr.Result[0] = cdr.StatP; |
| 511 | cdr.Stat = Acknowledge; |
| 512 | break; |
| 513 | |
| 514 | case CdlReadToc: |
| 515 | SetResultSize(1); |
| 516 | cdr.StatP |= 0x2; |
| 517 | cdr.Result[0] = cdr.StatP; |
| 518 | cdr.Stat = Acknowledge; |
| 519 | AddIrqQueue(CdlReadToc + 0x20, 0x1000); |
| 520 | break; |
| 521 | |
| 522 | case CdlReadToc + 0x20: |
| 523 | SetResultSize(1); |
| 524 | cdr.StatP |= 0x2; |
| 525 | cdr.Result[0] = cdr.StatP; |
| 526 | cdr.Stat = Complete; |
| 527 | break; |
| 528 | |
| 529 | case AUTOPAUSE: |
| 530 | cdr.OCUP = 0; |
| 531 | /* SetResultSize(1); |
| 532 | StopCdda(); |
| 533 | StopReading(); |
| 534 | cdr.OCUP = 0; |
| 535 | cdr.StatP&=~0x20; |
| 536 | cdr.StatP|= 0x2; |
| 537 | cdr.Result[0] = cdr.StatP; |
| 538 | cdr.Stat = DataEnd; |
| 539 | */ AddIrqQueue(CdlPause, 0x800); |
| 540 | break; |
| 541 | |
| 542 | case READ_ACK: |
| 543 | if (!cdr.Reading) return; |
| 544 | |
| 545 | SetResultSize(1); |
| 546 | cdr.StatP |= 0x2; |
| 547 | cdr.Result[0] = cdr.StatP; |
| 548 | if (!cdr.Seeked) { |
| 549 | cdr.Seeked = TRUE; |
| 550 | cdr.StatP |= 0x40; |
| 551 | } |
| 552 | cdr.StatP |= 0x20; |
| 553 | cdr.Stat = Acknowledge; |
| 554 | |
| 555 | // CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime); |
| 556 | CDREAD_INT(0x80000); |
| 557 | break; |
| 558 | |
| 559 | case REPPLAY_ACK: |
| 560 | cdr.Stat = Acknowledge; |
| 561 | cdr.Result[0] = cdr.StatP; |
| 562 | SetResultSize(1); |
| 563 | AddIrqQueue(REPPLAY, cdReadTime); |
| 564 | break; |
| 565 | |
| 566 | case REPPLAY: |
| 567 | if ((cdr.Mode & 5) != 5) break; |
| 568 | /* if (CDR_getStatus(&stat) == -1) { |
| 569 | cdr.Result[0] = 0; |
| 570 | cdr.Result[1] = 0; |
| 571 | cdr.Result[2] = 0; |
| 572 | cdr.Result[3] = 0; |
| 573 | cdr.Result[4] = 0; |
| 574 | cdr.Result[5] = 0; |
| 575 | cdr.Result[6] = 0; |
| 576 | cdr.Result[7] = 0; |
| 577 | } else memcpy(cdr.Result, &stat.Track, 8); |
| 578 | cdr.Stat = 1; |
| 579 | SetResultSize(8); |
| 580 | AddIrqQueue(REPPLAY_ACK, cdReadTime); |
| 581 | */ break; |
| 582 | |
| 583 | case 0xff: |
| 584 | return; |
| 585 | |
| 586 | default: |
| 587 | cdr.Stat = Complete; |
| 588 | break; |
| 589 | } |
| 590 | |
| 591 | if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) { |
| 592 | psxHu32ref(0x1070) |= SWAP32((u32)0x4); |
| 593 | } |
| 594 | |
| 595 | #ifdef CDR_LOG |
| 596 | CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq); |
| 597 | #endif |
| 598 | } |
| 599 | |
| 600 | void cdrReadInterrupt() { |
| 601 | u8 *buf; |
| 602 | |
| 603 | if (!cdr.Reading) |
| 604 | return; |
| 605 | |
| 606 | if (cdr.Stat) { |
| 607 | CDREAD_INT(0x1000); |
| 608 | return; |
| 609 | } |
| 610 | |
| 611 | #ifdef CDR_LOG |
| 612 | CDR_LOG("cdrReadInterrupt() Log: KEY END"); |
| 613 | #endif |
| 614 | |
| 615 | cdr.OCUP = 1; |
| 616 | SetResultSize(1); |
| 617 | cdr.StatP |= 0x22; |
| 618 | cdr.StatP &= ~0x40; |
| 619 | cdr.Result[0] = cdr.StatP; |
| 620 | |
| 621 | ReadTrack(); |
| 622 | |
| 623 | buf = CDR_getBuffer(); |
| 624 | if (buf == NULL) |
| 625 | cdr.RErr = -1; |
| 626 | |
| 627 | if (cdr.RErr == -1) { |
| 628 | #ifdef CDR_LOG |
| 629 | fprintf(emuLog, "cdrReadInterrupt() Log: err\n"); |
| 630 | #endif |
| 631 | memset(cdr.Transfer, 0, DATA_SIZE); |
| 632 | cdr.Stat = DiskError; |
| 633 | cdr.Result[0] |= 0x01; |
| 634 | CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime); |
| 635 | return; |
| 636 | } |
| 637 | |
| 638 | memcpy(cdr.Transfer, buf, DATA_SIZE); |
| 639 | CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]); |
| 640 | |
| 641 | cdr.Stat = DataReady; |
| 642 | |
| 643 | #ifdef CDR_LOG |
| 644 | fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]); |
| 645 | #endif |
| 646 | |
| 647 | if ((!cdr.Muted) && (cdr.Mode & 0x40) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA |
| 648 | if ((cdr.Transfer[4 + 2] & 0x4) && |
| 649 | ((cdr.Mode & 0x8) ? (cdr.Transfer[4 + 1] == cdr.Channel) : 1) && |
| 650 | (cdr.Transfer[4 + 0] == cdr.File)) { |
| 651 | int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector); |
| 652 | |
| 653 | if (!ret) { |
| 654 | SPU_playADPCMchannel(&cdr.Xa); |
| 655 | cdr.FirstSector = 0; |
| 656 | } |
| 657 | else cdr.FirstSector = -1; |
| 658 | } |
| 659 | } |
| 660 | |
| 661 | cdr.SetSector[2]++; |
| 662 | if (cdr.SetSector[2] == 75) { |
| 663 | cdr.SetSector[2] = 0; |
| 664 | cdr.SetSector[1]++; |
| 665 | if (cdr.SetSector[1] == 60) { |
| 666 | cdr.SetSector[1] = 0; |
| 667 | cdr.SetSector[0]++; |
| 668 | } |
| 669 | } |
| 670 | |
| 671 | cdr.Readed = 0; |
| 672 | |
| 673 | if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & 0x2)) { // EOF |
| 674 | #ifdef CDR_LOG |
| 675 | CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n"); |
| 676 | #endif |
| 677 | // AddIrqQueue(AUTOPAUSE, 0x1000); |
| 678 | AddIrqQueue(CdlPause, 0x1000); |
| 679 | } |
| 680 | else { |
| 681 | CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime); |
| 682 | } |
| 683 | psxHu32ref(0x1070) |= SWAP32((u32)0x4); |
| 684 | } |
| 685 | |
| 686 | /* |
| 687 | cdrRead0: |
| 688 | bit 0 - 0 REG1 command send / 1 REG1 data read |
| 689 | bit 1 - 0 data transfer finish / 1 data transfer ready/in progress |
| 690 | bit 2 - unknown |
| 691 | bit 3 - unknown |
| 692 | bit 4 - unknown |
| 693 | bit 5 - 1 result ready |
| 694 | bit 6 - 1 dma ready |
| 695 | bit 7 - 1 command being processed |
| 696 | */ |
| 697 | |
| 698 | unsigned char cdrRead0(void) { |
| 699 | if (cdr.ResultReady) |
| 700 | cdr.Ctrl |= 0x20; |
| 701 | else |
| 702 | cdr.Ctrl &= ~0x20; |
| 703 | |
| 704 | if (cdr.OCUP) |
| 705 | cdr.Ctrl |= 0x40; |
| 706 | // else |
| 707 | // cdr.Ctrl &= ~0x40; |
| 708 | |
| 709 | // What means the 0x10 and the 0x08 bits? I only saw it used by the bios |
| 710 | cdr.Ctrl |= 0x18; |
| 711 | |
| 712 | #ifdef CDR_LOG |
| 713 | CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl); |
| 714 | #endif |
| 715 | |
| 716 | return psxHu8(0x1800) = cdr.Ctrl; |
| 717 | } |
| 718 | |
| 719 | /* |
| 720 | cdrWrite0: |
| 721 | 0 - to send a command / 1 - to get the result |
| 722 | */ |
| 723 | |
| 724 | void cdrWrite0(unsigned char rt) { |
| 725 | #ifdef CDR_LOG |
| 726 | CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt); |
| 727 | #endif |
| 728 | cdr.Ctrl = rt | (cdr.Ctrl & ~0x3); |
| 729 | |
| 730 | if (rt == 0) { |
| 731 | cdr.ParamP = 0; |
| 732 | cdr.ParamC = 0; |
| 733 | cdr.ResultReady = 0; |
| 734 | } |
| 735 | } |
| 736 | |
| 737 | unsigned char cdrRead1(void) { |
| 738 | if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) { |
| 739 | psxHu8(0x1801) = cdr.Result[cdr.ResultP++]; |
| 740 | if (cdr.ResultP == cdr.ResultC) |
| 741 | cdr.ResultReady = 0; |
| 742 | } else { |
| 743 | psxHu8(0x1801) = 0; |
| 744 | } |
| 745 | #ifdef CDR_LOG |
| 746 | CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801)); |
| 747 | #endif |
| 748 | return psxHu8(0x1801); |
| 749 | } |
| 750 | |
| 751 | void cdrWrite1(unsigned char rt) { |
| 752 | int i; |
| 753 | |
| 754 | #ifdef CDR_LOG |
| 755 | CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]); |
| 756 | #endif |
| 757 | // psxHu8(0x1801) = rt; |
| 758 | cdr.Cmd = rt; |
| 759 | cdr.OCUP = 0; |
| 760 | |
| 761 | #ifdef CDRCMD_DEBUG |
| 762 | SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]); |
| 763 | if (cdr.ParamC) { |
| 764 | SysPrintf(" Param[%d] = {", cdr.ParamC); |
| 765 | for (i = 0; i < cdr.ParamC; i++) |
| 766 | SysPrintf(" %x,", cdr.Param[i]); |
| 767 | SysPrintf("}\n"); |
| 768 | } else { |
| 769 | SysPrintf("\n"); |
| 770 | } |
| 771 | #endif |
| 772 | |
| 773 | if (cdr.Ctrl & 0x1) return; |
| 774 | |
| 775 | switch (cdr.Cmd) { |
| 776 | case CdlSync: |
| 777 | cdr.Ctrl |= 0x80; |
| 778 | cdr.Stat = NoIntr; |
| 779 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 780 | break; |
| 781 | |
| 782 | case CdlNop: |
| 783 | cdr.Ctrl |= 0x80; |
| 784 | cdr.Stat = NoIntr; |
| 785 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 786 | break; |
| 787 | |
| 788 | case CdlSetloc: |
| 789 | StopReading(); |
| 790 | cdr.Seeked = FALSE; |
| 791 | for (i = 0; i < 3; i++) |
| 792 | cdr.SetSector[i] = btoi(cdr.Param[i]); |
| 793 | cdr.SetSector[3] = 0; |
| 794 | /* if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) { |
| 795 | *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek; |
| 796 | }*/ |
| 797 | cdr.Ctrl |= 0x80; |
| 798 | cdr.Stat = NoIntr; |
| 799 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 800 | break; |
| 801 | |
| 802 | case CdlPlay: |
| 803 | if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) { |
| 804 | if (CDR_getTN(cdr.ResultTN) != -1) { |
| 805 | if (cdr.CurTrack > cdr.ResultTN[1]) |
| 806 | cdr.CurTrack = cdr.ResultTN[1]; |
| 807 | if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) { |
| 808 | int tmp = cdr.ResultTD[2]; |
| 809 | cdr.ResultTD[2] = cdr.ResultTD[0]; |
| 810 | cdr.ResultTD[0] = tmp; |
| 811 | if (!Config.Cdda) CDR_play(cdr.ResultTD); |
| 812 | } |
| 813 | } |
| 814 | } else if (!Config.Cdda) { |
| 815 | CDR_play(cdr.SetSector); |
| 816 | } |
| 817 | cdr.Play = TRUE; |
| 818 | cdr.Ctrl |= 0x80; |
| 819 | cdr.Stat = NoIntr; |
| 820 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 821 | break; |
| 822 | |
| 823 | case CdlForward: |
| 824 | if (cdr.CurTrack < 0xaa) |
| 825 | cdr.CurTrack++; |
| 826 | cdr.Ctrl |= 0x80; |
| 827 | cdr.Stat = NoIntr; |
| 828 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 829 | break; |
| 830 | |
| 831 | case CdlBackward: |
| 832 | if (cdr.CurTrack > 1) |
| 833 | cdr.CurTrack--; |
| 834 | cdr.Ctrl |= 0x80; |
| 835 | cdr.Stat = NoIntr; |
| 836 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 837 | break; |
| 838 | |
| 839 | case CdlReadN: |
| 840 | cdr.Irq = 0; |
| 841 | StopReading(); |
| 842 | cdr.Ctrl|= 0x80; |
| 843 | cdr.Stat = NoIntr; |
| 844 | StartReading(1, 0x1000); |
| 845 | break; |
| 846 | |
| 847 | case CdlStandby: |
| 848 | StopCdda(); |
| 849 | StopReading(); |
| 850 | cdr.Ctrl |= 0x80; |
| 851 | cdr.Stat = NoIntr; |
| 852 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 853 | break; |
| 854 | |
| 855 | case CdlStop: |
| 856 | StopCdda(); |
| 857 | StopReading(); |
| 858 | cdr.Ctrl |= 0x80; |
| 859 | cdr.Stat = NoIntr; |
| 860 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 861 | break; |
| 862 | |
| 863 | case CdlPause: |
| 864 | StopCdda(); |
| 865 | StopReading(); |
| 866 | cdr.Ctrl |= 0x80; |
| 867 | cdr.Stat = NoIntr; |
| 868 | AddIrqQueue(cdr.Cmd, 0x80000); |
| 869 | break; |
| 870 | |
| 871 | case CdlReset: |
| 872 | case CdlInit: |
| 873 | StopCdda(); |
| 874 | StopReading(); |
| 875 | cdr.Ctrl |= 0x80; |
| 876 | cdr.Stat = NoIntr; |
| 877 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 878 | break; |
| 879 | |
| 880 | case CdlMute: |
| 881 | cdr.Muted = TRUE; |
| 882 | cdr.Ctrl |= 0x80; |
| 883 | cdr.Stat = NoIntr; |
| 884 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 885 | break; |
| 886 | |
| 887 | case CdlDemute: |
| 888 | cdr.Muted = FALSE; |
| 889 | cdr.Ctrl |= 0x80; |
| 890 | cdr.Stat = NoIntr; |
| 891 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 892 | break; |
| 893 | |
| 894 | case CdlSetfilter: |
| 895 | cdr.File = cdr.Param[0]; |
| 896 | cdr.Channel = cdr.Param[1]; |
| 897 | cdr.Ctrl |= 0x80; |
| 898 | cdr.Stat = NoIntr; |
| 899 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 900 | break; |
| 901 | |
| 902 | case CdlSetmode: |
| 903 | #ifdef CDR_LOG |
| 904 | CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]); |
| 905 | #endif |
| 906 | cdr.Mode = cdr.Param[0]; |
| 907 | cdr.Ctrl |= 0x80; |
| 908 | cdr.Stat = NoIntr; |
| 909 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 910 | break; |
| 911 | |
| 912 | case CdlGetmode: |
| 913 | cdr.Ctrl |= 0x80; |
| 914 | cdr.Stat = NoIntr; |
| 915 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 916 | break; |
| 917 | |
| 918 | case CdlGetlocL: |
| 919 | cdr.Ctrl |= 0x80; |
| 920 | cdr.Stat = NoIntr; |
| 921 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 922 | break; |
| 923 | |
| 924 | case CdlGetlocP: |
| 925 | cdr.Ctrl |= 0x80; |
| 926 | cdr.Stat = NoIntr; |
| 927 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 928 | break; |
| 929 | |
| 930 | case CdlGetTN: |
| 931 | cdr.Ctrl |= 0x80; |
| 932 | cdr.Stat = NoIntr; |
| 933 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 934 | break; |
| 935 | |
| 936 | case CdlGetTD: |
| 937 | cdr.Ctrl |= 0x80; |
| 938 | cdr.Stat = NoIntr; |
| 939 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 940 | break; |
| 941 | |
| 942 | case CdlSeekL: |
| 943 | // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0]; |
| 944 | cdr.Ctrl |= 0x80; |
| 945 | cdr.Stat = NoIntr; |
| 946 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 947 | break; |
| 948 | |
| 949 | case CdlSeekP: |
| 950 | // ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0]; |
| 951 | cdr.Ctrl |= 0x80; |
| 952 | cdr.Stat = NoIntr; |
| 953 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 954 | break; |
| 955 | |
| 956 | case CdlTest: |
| 957 | cdr.Ctrl |= 0x80; |
| 958 | cdr.Stat = NoIntr; |
| 959 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 960 | break; |
| 961 | |
| 962 | case CdlID: |
| 963 | cdr.Ctrl |= 0x80; |
| 964 | cdr.Stat = NoIntr; |
| 965 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 966 | break; |
| 967 | |
| 968 | case CdlReadS: |
| 969 | cdr.Irq = 0; |
| 970 | StopReading(); |
| 971 | cdr.Ctrl |= 0x80; |
| 972 | cdr.Stat = NoIntr; |
| 973 | StartReading(2, 0x1000); |
| 974 | break; |
| 975 | |
| 976 | case CdlReadToc: |
| 977 | cdr.Ctrl |= 0x80; |
| 978 | cdr.Stat = NoIntr; |
| 979 | AddIrqQueue(cdr.Cmd, 0x1000); |
| 980 | break; |
| 981 | |
| 982 | default: |
| 983 | #ifdef CDR_LOG |
| 984 | CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd); |
| 985 | #endif |
| 986 | return; |
| 987 | } |
| 988 | if (cdr.Stat != NoIntr) { |
| 989 | psxHu32ref(0x1070) |= SWAP32((u32)0x4); |
| 990 | } |
| 991 | } |
| 992 | |
| 993 | unsigned char cdrRead2(void) { |
| 994 | unsigned char ret; |
| 995 | |
| 996 | if (cdr.Readed == 0) { |
| 997 | ret = 0; |
| 998 | } else { |
| 999 | ret = *cdr.pTransfer++; |
| 1000 | } |
| 1001 | |
| 1002 | #ifdef CDR_LOG |
| 1003 | CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret); |
| 1004 | #endif |
| 1005 | return ret; |
| 1006 | } |
| 1007 | |
| 1008 | void cdrWrite2(unsigned char rt) { |
| 1009 | #ifdef CDR_LOG |
| 1010 | CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt); |
| 1011 | #endif |
| 1012 | if (cdr.Ctrl & 0x1) { |
| 1013 | switch (rt) { |
| 1014 | case 0x07: |
| 1015 | cdr.ParamP = 0; |
| 1016 | cdr.ParamC = 0; |
| 1017 | cdr.ResultReady = 1; //0; |
| 1018 | cdr.Ctrl &= ~3; //cdr.Ctrl = 0; |
| 1019 | break; |
| 1020 | |
| 1021 | default: |
| 1022 | cdr.Reg2 = rt; |
| 1023 | break; |
| 1024 | } |
| 1025 | } else if (!(cdr.Ctrl & 0x1) && cdr.ParamP < 8) { |
| 1026 | cdr.Param[cdr.ParamP++] = rt; |
| 1027 | cdr.ParamC++; |
| 1028 | } |
| 1029 | } |
| 1030 | |
| 1031 | unsigned char cdrRead3(void) { |
| 1032 | if (cdr.Stat) { |
| 1033 | if (cdr.Ctrl & 0x1) |
| 1034 | psxHu8(0x1803) = cdr.Stat | 0xE0; |
| 1035 | else |
| 1036 | psxHu8(0x1803) = 0xff; |
| 1037 | } else { |
| 1038 | psxHu8(0x1803) = 0; |
| 1039 | } |
| 1040 | #ifdef CDR_LOG |
| 1041 | CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803)); |
| 1042 | #endif |
| 1043 | return psxHu8(0x1803); |
| 1044 | } |
| 1045 | |
| 1046 | void cdrWrite3(unsigned char rt) { |
| 1047 | #ifdef CDR_LOG |
| 1048 | CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt); |
| 1049 | #endif |
| 1050 | if (rt == 0x07 && cdr.Ctrl & 0x1) { |
| 1051 | cdr.Stat = 0; |
| 1052 | |
| 1053 | if (cdr.Irq == 0xff) { |
| 1054 | cdr.Irq = 0; |
| 1055 | return; |
| 1056 | } |
| 1057 | if (cdr.Irq) |
| 1058 | CDR_INT(cdr.eCycle); |
| 1059 | if (cdr.Reading && !cdr.ResultReady) |
| 1060 | CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime); |
| 1061 | |
| 1062 | return; |
| 1063 | } |
| 1064 | if (rt == 0x80 && !(cdr.Ctrl & 0x1) && cdr.Readed == 0) { |
| 1065 | cdr.Readed = 1; |
| 1066 | cdr.pTransfer = cdr.Transfer; |
| 1067 | |
| 1068 | switch (cdr.Mode & 0x30) { |
| 1069 | case 0x10: |
| 1070 | case 0x00: |
| 1071 | cdr.pTransfer += 12; |
| 1072 | break; |
| 1073 | default: |
| 1074 | break; |
| 1075 | } |
| 1076 | } |
| 1077 | } |
| 1078 | |
| 1079 | void psxDma3(u32 madr, u32 bcr, u32 chcr) { |
| 1080 | u32 cdsize; |
| 1081 | u8 *ptr; |
| 1082 | |
| 1083 | #ifdef CDR_LOG |
| 1084 | CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr); |
| 1085 | #endif |
| 1086 | |
| 1087 | switch (chcr) { |
| 1088 | case 0x11000000: |
| 1089 | case 0x11400100: |
| 1090 | if (cdr.Readed == 0) { |
| 1091 | #ifdef CDR_LOG |
| 1092 | CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n"); |
| 1093 | #endif |
| 1094 | break; |
| 1095 | } |
| 1096 | |
| 1097 | cdsize = (bcr & 0xffff) * 4; |
| 1098 | |
| 1099 | ptr = (u8 *)PSXM(madr); |
| 1100 | if (ptr == NULL) { |
| 1101 | #ifdef CPU_LOG |
| 1102 | CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n"); |
| 1103 | #endif |
| 1104 | break; |
| 1105 | } |
| 1106 | memcpy(ptr, cdr.pTransfer, cdsize); |
| 1107 | psxCpu->Clear(madr, cdsize / 4); |
| 1108 | cdr.pTransfer += cdsize; |
| 1109 | break; |
| 1110 | default: |
| 1111 | #ifdef CDR_LOG |
| 1112 | CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr); |
| 1113 | #endif |
| 1114 | break; |
| 1115 | } |
| 1116 | |
| 1117 | HW_DMA3_CHCR &= SWAP32(~0x01000000); |
| 1118 | DMA_INTERRUPT(3); |
| 1119 | } |
| 1120 | |
| 1121 | void cdrReset() { |
| 1122 | memset(&cdr, 0, sizeof(cdr)); |
| 1123 | cdr.CurTrack = 1; |
| 1124 | cdr.File = 1; |
| 1125 | cdr.Channel = 1; |
| 1126 | } |
| 1127 | |
| 1128 | int cdrFreeze(gzFile f, int Mode) { |
| 1129 | uintptr_t tmp; |
| 1130 | |
| 1131 | gzfreeze(&cdr, sizeof(cdr)); |
| 1132 | |
| 1133 | if (Mode == 1) |
| 1134 | tmp = cdr.pTransfer - cdr.Transfer; |
| 1135 | |
| 1136 | gzfreeze(&tmp, sizeof(tmp)); |
| 1137 | |
| 1138 | if (Mode == 0) |
| 1139 | cdr.pTransfer = cdr.Transfer + tmp; |
| 1140 | |
| 1141 | return 0; |
| 1142 | } |