libpcsxcore/cdrom.c

   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 #include "psxdma.h"
  27
  28 cdrStruct cdr;
  29 static unsigned char *pTransfer;
  30
  31 /* CD-ROM magic numbers */
  32 #define CdlSync        0
  33 #define CdlNop         1
  34 #define CdlSetloc      2
  35 #define CdlPlay        3
  36 #define CdlForward     4
  37 #define CdlBackward    5
  38 #define CdlReadN       6
  39 #define CdlStandby     7
  40 #define CdlStop        8
  41 #define CdlPause       9
  42 #define CdlInit        10
  43 #define CdlMute        11
  44 #define CdlDemute      12
  45 #define CdlSetfilter   13
  46 #define CdlSetmode     14
  47 #define CdlGetmode     15
  48 #define CdlGetlocL     16
  49 #define CdlGetlocP     17
  50 #define CdlReadT       18
  51 #define CdlGetTN       19
  52 #define CdlGetTD       20
  53 #define CdlSeekL       21
  54 #define CdlSeekP       22
  55 #define CdlSetclock    23
  56 #define CdlGetclock    24
  57 #define CdlTest        25
  58 #define CdlID          26
  59 #define CdlReadS       27
  60 #define CdlReset       28
  61 #define CdlReadToc     30
  62
  63 #define AUTOPAUSE      249
  64 #define READ_ACK       250
  65 #define READ           251
  66 #define REPPLAY_ACK    252
  67 #define REPPLAY        253
  68 #define ASYNC          254
  69 /* don't set 255, it's reserved */
  70
  71 char *CmdName[0x100]= {
  72     "CdlSync",     "CdlNop",       "CdlSetloc",  "CdlPlay",
  73     "CdlForward",  "CdlBackward",  "CdlReadN",   "CdlStandby",
  74     "CdlStop",     "CdlPause",     "CdlInit",    "CdlMute",
  75     "CdlDemute",   "CdlSetfilter", "CdlSetmode", "CdlGetmode",
  76     "CdlGetlocL",  "CdlGetlocP",   "CdlReadT",   "CdlGetTN",
  77     "CdlGetTD",    "CdlSeekL",     "CdlSeekP",   "CdlSetclock",
  78     "CdlGetclock", "CdlTest",      "CdlID",      "CdlReadS",
  79     "CdlReset",    NULL,           "CDlReadToc", NULL
  80 };
  81
  82 unsigned char Test04[] = { 0 };
  83 unsigned char Test05[] = { 0 };
  84 unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 };
  85 unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F };
  86 unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 };
  87
  88 // cdr.Stat:
  89 #define NoIntr          0
  90 #define DataReady       1
  91 #define Complete        2
  92 #define Acknowledge     3
  93 #define DataEnd         4
  94 #define DiskError       5
  95
  96 /* Modes flags */
  97 #define MODE_SPEED       (1<<7) // 0x80
  98 #define MODE_STRSND      (1<<6) // 0x40 ADPCM on/off
  99 #define MODE_SIZE_2340   (1<<5) // 0x20
 100 #define MODE_SIZE_2328   (1<<4) // 0x10
 101 #define MODE_SF          (1<<3) // 0x08 channel on/off
 102 #define MODE_REPORT      (1<<2) // 0x04
 103 #define MODE_AUTOPAUSE   (1<<1) // 0x02
 104 #define MODE_CDDA        (1<<0) // 0x01
 105
 106 /* Status flags */
 107 #define STATUS_PLAY      (1<<7) // 0x80
 108 #define STATUS_SEEK      (1<<6) // 0x40
 109 #define STATUS_READ      (1<<5) // 0x20
 110 #define STATUS_SHELLOPEN (1<<4) // 0x10
 111 #define STATUS_UNKNOWN3  (1<<3) // 0x08
 112 #define STATUS_UNKNOWN2  (1<<2) // 0x04
 113 #define STATUS_ROTATING  (1<<1) // 0x02
 114 #define STATUS_ERROR     (1<<0) // 0x01
 115
 116
 117
 118 // 1x = 75 sectors per second
 119 // PSXCLK = 1 sec in the ps
 120 // so (PSXCLK / 75) = cdr read time (linuzappz)
 121 #define cdReadTime (PSXCLK / 75)
 122
 123 static struct CdrStat stat;
 124
 125 static unsigned int msf2sec(u8 *msf) {
 126         return ((msf[0] * 60 + msf[1]) * 75) + msf[2];
 127 }
 128
 129 static void sec2msf(unsigned int s, u8 *msf) {
 130         msf[0] = s / 75 / 60;
 131         s = s - msf[0] * 75 * 60;
 132         msf[1] = s / 75;
 133         s = s - msf[1] * 75;
 134         msf[2] = s;
 135 }
 136
 137
 138 #define CDR_INT(eCycle) { \
 139         psxRegs.interrupt |= (1 << PSXINT_CDR); \
 140         psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
 141         psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
 142         new_dyna_set_event(PSXINT_CDR, eCycle); \
 143 }
 144
 145 #define CDREAD_INT(eCycle) { \
 146         psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
 147         psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
 148         psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
 149         new_dyna_set_event(PSXINT_CDREAD, eCycle); \
 150 }
 151
 152 #define CDRLID_INT(eCycle) { \
 153         psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
 154         psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
 155         psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
 156         new_dyna_set_event(PSXINT_CDRLID, eCycle); \
 157 }
 158
 159 #define CDRPLAY_INT(eCycle) { \
 160         psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
 161         psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
 162         psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
 163         new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
 164 }
 165
 166 #define StartReading(type, eCycle) { \
 167         cdr.Reading = type; \
 168         cdr.FirstSector = 1; \
 169         cdr.Readed = 0xff; \
 170         AddIrqQueue(READ_ACK, eCycle); \
 171 }
 172
 173 #define StopReading() { \
 174         if (cdr.Reading) { \
 175                 cdr.Reading = 0; \
 176                 psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
 177         } \
 178         cdr.StatP &= ~STATUS_READ;\
 179 }
 180
 181 #define StopCdda() { \
 182         if (cdr.Play) { \
 183                 if (!Config.Cdda) CDR_stop(); \
 184                 cdr.StatP &= ~STATUS_PLAY; \
 185                 cdr.Play = FALSE; \
 186                 cdr.FastForward = 0; \
 187                 cdr.FastBackward = 0; \
 188                 /*SPU_registerCallback( SPUirq );*/ \
 189         } \
 190 }
 191
 192 #define SetResultSize(size) { \
 193     cdr.ResultP = 0; \
 194         cdr.ResultC = size; \
 195         cdr.ResultReady = 1; \
 196 }
 197
 198
 199 void cdrLidSeekInterrupt()
 200 {
 201         // turn back on checking
 202         if( cdr.LidCheck == 0x10 )
 203         {
 204                 cdr.LidCheck = 0;
 205         }
 206
 207         // official lid close
 208         else if( cdr.LidCheck == 0x30 )
 209         {
 210                 // GS CDX 3.3: $13
 211                 cdr.StatP |= STATUS_ROTATING;
 212
 213
 214                 // GS CDX 3.3 - ~50 getlocp tries
 215                 CDRLID_INT( cdReadTime * 3 );
 216                 cdr.LidCheck = 0x40;
 217         }
 218
 219         // turn off ready
 220         else if( cdr.LidCheck == 0x40 )
 221         {
 222                 // GS CDX 3.3: $01
 223                 cdr.StatP &= ~STATUS_SHELLOPEN;
 224                 cdr.StatP &= ~STATUS_ROTATING;
 225
 226
 227                 // GS CDX 3.3 - ~50 getlocp tries
 228                 CDRLID_INT( cdReadTime * 3 );
 229                 cdr.LidCheck = 0x50;
 230         }
 231
 232         // now seek
 233         else if( cdr.LidCheck == 0x50 )
 234         {
 235                 // GameShark Lite: Start seeking ($42)
 236                 cdr.StatP |= STATUS_SEEK;
 237                 cdr.StatP |= STATUS_ROTATING;
 238                 cdr.StatP &= ~STATUS_ERROR;
 239
 240
 241                 CDRLID_INT( cdReadTime * 3 );
 242                 cdr.LidCheck = 0x60;
 243         }
 244
 245         // done = cd ready
 246         else if( cdr.LidCheck == 0x60 )
 247         {
 248                 // GameShark Lite: Seek detection done ($02)
 249                 cdr.StatP &= ~STATUS_SEEK;
 250
 251                 cdr.LidCheck = 0;
 252         }
 253 }
 254
 255
 256 static void Check_Shell( int Irq )
 257 {
 258         // check case open/close
 259         if (cdr.LidCheck > 0)
 260         {
 261 #ifdef CDR_LOG
 262                 CDR_LOG( "LidCheck\n" );
 263 #endif
 264
 265                 // $20 = check lid state
 266                 if( cdr.LidCheck == 0x20 )
 267                 {
 268                         u32 i;
 269
 270                         i = stat.Status;
 271                         if (CDR_getStatus(&stat) != -1)
 272                         {
 273                                 // BIOS hangs + BIOS error messages
 274                                 //if (stat.Type == 0xff)
 275                                         //cdr.Stat = DiskError;
 276
 277                                 // case now open
 278                                 if (stat.Status & STATUS_SHELLOPEN)
 279                                 {
 280                                         // Vib Ribbon: pre-CD swap
 281                                         StopCdda();
 282
 283
 284                                         // GameShark Lite: Death if DiskError happens
 285                                         //
 286                                         // Vib Ribbon: Needs DiskError for CD swap
 287
 288                                         if (Irq != CdlNop)
 289                                         {
 290                                                 cdr.Stat = DiskError;
 291
 292                                                 cdr.StatP |= STATUS_ERROR;
 293                                                 cdr.Result[0] |= STATUS_ERROR;
 294                                         }
 295
 296                                         // GameShark Lite: Wants -exactly- $10
 297                                         cdr.StatP |= STATUS_SHELLOPEN;
 298                                         cdr.StatP &= ~STATUS_ROTATING;
 299
 300
 301                                         CDRLID_INT( cdReadTime * 3 );
 302                                         cdr.LidCheck = 0x10;
 303
 304
 305                                         // GS CDX 3.3 = $11
 306                                 }
 307
 308                                 // case just closed
 309                                 else if ( i & STATUS_SHELLOPEN )
 310                                 {
 311                                         cdr.StatP |= STATUS_ROTATING;
 312
 313                                         CheckCdrom();
 314
 315
 316                                         if( cdr.Stat == NoIntr )
 317                                                 cdr.Stat = Acknowledge;
 318
 319                                         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 320
 321
 322                                         // begin close-seek-ready cycle
 323                                         CDRLID_INT( cdReadTime * 3 );
 324                                         cdr.LidCheck = 0x30;
 325
 326
 327                                         // GameShark Lite: Wants -exactly- $42, then $02
 328                                         // GS CDX 3.3: Wants $11/$80, $13/$80, $01/$00
 329                                 }
 330
 331                                 // case still closed - wait for recheck
 332                                 else
 333                                 {
 334                                         CDRLID_INT( cdReadTime * 3 );
 335                                         cdr.LidCheck = 0x10;
 336                                 }
 337                         }
 338                 }
 339
 340
 341                 // GS CDX: clear all values but #1,#2
 342                 if( (cdr.LidCheck >= 0x30) || (cdr.StatP & STATUS_SHELLOPEN) )
 343                 {
 344                         SetResultSize(16);
 345                         memset( cdr.Result, 0, 16 );
 346
 347                         cdr.Result[0] = cdr.StatP;
 348
 349
 350                         // GS CDX: special return value
 351                         if( cdr.StatP & STATUS_SHELLOPEN )
 352                         {
 353                                 cdr.Result[1] = 0x80;
 354                         }
 355
 356
 357                         if( cdr.Stat == NoIntr )
 358                                 cdr.Stat = Acknowledge;
 359
 360                         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 361                 }
 362         }
 363 }
 364
 365
 366 void Find_CurTrack() {
 367         cdr.CurTrack = 0;
 368
 369         if (CDR_getTN(cdr.ResultTN) != -1) {
 370                 int lcv;
 371
 372                 for( lcv = 1; lcv <= cdr.ResultTN[1]; lcv++ ) {
 373                         if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
 374                                 u32 sect1, sect2;
 375
 376 #ifdef CDR_LOG___0
 377                                 CDR_LOG( "curtrack %d %d %d | %d %d %d | %d\n",
 378                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
 379                                         cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
 380                                         cdr.CurTrack );
 381 #endif
 382
 383                                 // find next track boundary - only need m:s accuracy
 384                                 sect1 = cdr.SetSectorPlay[0] * 60 * 75 + cdr.SetSectorPlay[1] * 75;
 385                                 sect2 = cdr.ResultTD[2] * 60 * 75 + cdr.ResultTD[1] * 75;
 386
 387                                 // Twisted Metal 4 - psx cdda pregap (2-sec)
 388                                 // - fix in-game music
 389                                 sect2 -= 75 * 2;
 390
 391                                 if( sect1 >= sect2 ) {
 392                                         cdr.CurTrack++;
 393                                         continue;
 394                                 }
 395                         }
 396
 397                         break;
 398                 }
 399         }
 400 }
 401
 402 static void ReadTrack( u8 *time ) {
 403         cdr.Prev[0] = itob( time[0] );
 404         cdr.Prev[1] = itob( time[1] );
 405         cdr.Prev[2] = itob( time[2] );
 406
 407 #ifdef CDR_LOG
 408         CDR_LOG("ReadTrack() Log: KEY *** %x:%x:%x\n", cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
 409 #endif
 410         cdr.RErr = CDR_readTrack(cdr.Prev);
 411 }
 412
 413
 414 void AddIrqQueue(unsigned char irq, unsigned long ecycle) {
 415         cdr.Irq = irq;
 416         cdr.eCycle = ecycle;
 417
 418         // Doom: Force rescheduling
 419         // - Fixes boot
 420         CDR_INT(ecycle);
 421 }
 422
 423
 424 void Set_Track()
 425 {
 426         if (CDR_getTN(cdr.ResultTN) != -1) {
 427                 int lcv;
 428
 429                 for( lcv = 1; lcv < cdr.ResultTN[1]; lcv++ ) {
 430                         if (CDR_getTD((u8)(lcv), cdr.ResultTD) != -1) {
 431 #ifdef CDR_LOG___0
 432                                 CDR_LOG( "settrack %d %d %d | %d %d %d | %d\n",
 433                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
 434                                         cdr.ResultTD[2], cdr.ResultTD[1], cdr.ResultTD[0],
 435                                         cdr.CurTrack );
 436 #endif
 437
 438                                 // check if time matches track start (only need min, sec accuracy)
 439                                 // - m:s:f vs f:s:m
 440                                 if( cdr.SetSectorPlay[0] == cdr.ResultTD[2] &&
 441                                                 cdr.SetSectorPlay[1] == cdr.ResultTD[1] ) {
 442                                         // skip pregap frames
 443                                         if( cdr.SetSectorPlay[2] < cdr.ResultTD[0] )
 444                                                 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
 445
 446                                         break;
 447                                 }
 448                                 else if( cdr.SetSectorPlay[0] < cdr.ResultTD[2] )
 449                                         break;
 450                         }
 451                 }
 452         }
 453 }
 454
 455
 456 static u8 fake_subq_local[3], fake_subq_real[3], fake_subq_index, fake_subq_change;
 457 static void Create_Fake_Subq()
 458 {
 459         u8 temp_cur[3], temp_next[3], temp_start[3], pregap;
 460         int diff;
 461
 462         if (CDR_getTN(cdr.ResultTN) == -1) return;
 463         if( cdr.CurTrack+1 <= cdr.ResultTN[1] ) {
 464                 pregap = 150;
 465                 if( CDR_getTD(cdr.CurTrack+1, cdr.ResultTD) == -1 ) return;
 466         } else {
 467                 // last track - cd size
 468                 pregap = 0;
 469                 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
 470         }
 471
 472         if( cdr.Play == TRUE ) {
 473                 temp_cur[0] = cdr.SetSectorPlay[0];
 474                 temp_cur[1] = cdr.SetSectorPlay[1];
 475                 temp_cur[2] = cdr.SetSectorPlay[2];
 476         } else {
 477                 temp_cur[0] = btoi( cdr.Prev[0] );
 478                 temp_cur[1] = btoi( cdr.Prev[1] );
 479                 temp_cur[2] = btoi( cdr.Prev[2] );
 480         }
 481
 482         fake_subq_real[0] = temp_cur[0];
 483         fake_subq_real[1] = temp_cur[1];
 484         fake_subq_real[2] = temp_cur[2];
 485
 486         temp_next[0] = cdr.ResultTD[2];
 487         temp_next[1] = cdr.ResultTD[1];
 488         temp_next[2] = cdr.ResultTD[0];
 489
 490
 491         // flag- next track
 492         if( msf2sec(temp_cur) >= msf2sec( temp_next )-pregap ) {
 493                 fake_subq_change = 1;
 494
 495                 cdr.CurTrack++;
 496
 497                 // end cd
 498                 if( pregap == 0 ) StopCdda();
 499         }
 500
 501         //////////////////////////////////////////////////
 502         //////////////////////////////////////////////////
 503
 504         // repair
 505         if( cdr.CurTrack <= cdr.ResultTN[1] ) {
 506                 if( CDR_getTD(cdr.CurTrack, cdr.ResultTD) == -1 ) return;
 507         } else {
 508                 // last track - cd size
 509                 if( CDR_getTD(0, cdr.ResultTD) == -1 ) return;
 510         }
 511
 512         temp_start[0] = cdr.ResultTD[2];
 513         temp_start[1] = cdr.ResultTD[1];
 514         temp_start[2] = cdr.ResultTD[0];
 515
 516
 517 #ifdef CDR_LOG
 518         CDR_LOG( "CDDA FAKE SUB - %d:%d:%d / %d:%d:%d / %d:%d:%d\n",
 519                 temp_cur[0], temp_cur[1], temp_cur[2],
 520                 temp_start[0], temp_start[1], temp_start[2],
 521                 temp_next[0], temp_next[1], temp_next[2]);
 522 #endif
 523
 524
 525
 526         // local time - pregap / real
 527         diff = msf2sec(temp_cur) - msf2sec( temp_start );
 528         if( diff < 0 ) {
 529                 fake_subq_index = 0;
 530
 531                 sec2msf( -diff, fake_subq_local );
 532         } else {
 533                 fake_subq_index = 1;
 534
 535                 sec2msf( diff, fake_subq_local );
 536         }
 537 }
 538
 539
 540 static void cdrPlayInterrupt_Autopause()
 541 {
 542         struct SubQ *subq = (struct SubQ *)CDR_getBufferSub();
 543         int track_changed = 0;
 544         if (subq != NULL ) {
 545                 // update subq
 546                 ReadTrack( cdr.SetSectorPlay );
 547
 548 #ifdef CDR_LOG
 549                 CDR_LOG( "CDDA SUB - %X:%X:%X\n",
 550                         subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
 551 #endif
 552
 553                 /*
 554                 CDDA Autopause
 555
 556                 Silhouette Mirage ($3)
 557                 Tomb Raider 1 ($7)
 558                 */
 559
 560                 // .. + 1 is probably wrong, but deals with corrupted subq + good checksum
 561                 // (how does real thing handle those?)
 562                 if( cdr.CurTrack + 1 == btoi( subq->TrackNumber ) )
 563                         track_changed = 1;
 564         } else {
 565                 Create_Fake_Subq();
 566 #ifdef CDR_LOG___0
 567                 CDR_LOG( "CDDA FAKE SUB - %d:%d:%d\n",
 568                         fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
 569 #endif
 570
 571                 track_changed = fake_subq_change;
 572                 fake_subq_change = 0;
 573         }
 574
 575         if ((cdr.Mode & MODE_AUTOPAUSE) && track_changed) {
 576 #ifdef CDR_LOG
 577                 CDR_LOG( "CDDA STOP\n" );
 578 #endif
 579
 580                 // Magic the Gathering
 581                 // - looping territory cdda
 582
 583                 // ...?
 584                 //cdr.ResultReady = 1;
 585                 //cdr.Stat = DataReady;
 586                 cdr.Stat = DataEnd;
 587                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 588
 589                 StopCdda();
 590         }
 591         else if (cdr.Mode & MODE_REPORT) {
 592                 if (subq != NULL) {
 593 #ifdef CDR_LOG
 594                         CDR_LOG( "REPPLAY SUB - %X:%X:%X\n",
 595                                 subq->AbsoluteAddress[0], subq->AbsoluteAddress[1], subq->AbsoluteAddress[2] );
 596 #endif
 597                         // breaks when .sub doesn't have index 0 for some reason (bad rip?)
 598                         //cdr.CurTrack = btoi( subq->TrackNumber );
 599
 600                         if (subq->AbsoluteAddress[2] & 0xf)
 601                                 return;
 602
 603                         cdr.Result[0] = cdr.StatP;
 604                         // BIOS CD Player: data already BCD format
 605                         cdr.Result[1] = subq->TrackNumber;
 606                         cdr.Result[2] = subq->IndexNumber;
 607
 608                         cdr.Result[3] = subq->AbsoluteAddress[0];
 609                         cdr.Result[4] = subq->AbsoluteAddress[1];
 610                         cdr.Result[5] = subq->AbsoluteAddress[2];
 611                 } else {
 612 #ifdef CDR_LOG___0
 613                         CDR_LOG( "REPPLAY FAKE - %d:%d:%d\n",
 614                                 fake_subq_real[0], fake_subq_real[1], fake_subq_real[2] );
 615 #endif
 616
 617                         if (fake_subq_real[2] & 0xf)
 618                                 return;
 619
 620                         cdr.Result[0] = cdr.StatP;
 621                         // track # / index #
 622                         cdr.Result[1] = itob(cdr.CurTrack);
 623                         cdr.Result[2] = itob(fake_subq_index);
 624                         // absolute
 625                         cdr.Result[3] = itob( fake_subq_real[0] );
 626                         cdr.Result[4] = itob( fake_subq_real[1] );
 627                         cdr.Result[5] = itob( fake_subq_real[2] );
 628                 }
 629
 630                 // Rayman: Logo freeze (resultready + dataready)
 631                 cdr.ResultReady = 1;
 632                 cdr.Stat = DataReady;
 633
 634                 SetResultSize(8);
 635                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
 636         }
 637 }
 638
 639 void cdrPlayInterrupt()
 640 {
 641         if( !cdr.Play ) return;
 642
 643 #ifdef CDR_LOG
 644         CDR_LOG( "CDDA - %d:%d:%d\n",
 645                 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 646 #endif
 647         CDRPLAY_INT( cdReadTime );
 648
 649         if (!cdr.Irq && !cdr.Stat && (cdr.Mode & MODE_CDDA) && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
 650                 cdrPlayInterrupt_Autopause();
 651
 652         cdr.SetSectorPlay[2]++;
 653         if (cdr.SetSectorPlay[2] == 75) {
 654                 cdr.SetSectorPlay[2] = 0;
 655                 cdr.SetSectorPlay[1]++;
 656                 if (cdr.SetSectorPlay[1] == 60) {
 657                         cdr.SetSectorPlay[1] = 0;
 658                         cdr.SetSectorPlay[0]++;
 659                 }
 660         }
 661
 662         //Check_Shell(0);
 663 }
 664
 665 void cdrInterrupt() {
 666         int i;
 667         unsigned char Irq = cdr.Irq;
 668         struct SubQ *subq;
 669
 670         // Reschedule IRQ
 671         if (cdr.Stat) {
 672                 CDR_INT( 0x100 );
 673                 return;
 674         }
 675
 676         cdr.Irq = 0xff;
 677         cdr.Ctrl &= ~0x80;
 678
 679         switch (Irq) {
 680                 case CdlSync:
 681                         SetResultSize(1);
 682                         cdr.StatP |= STATUS_ROTATING;
 683                         cdr.Result[0] = cdr.StatP;
 684                         cdr.Stat = Acknowledge;
 685                         break;
 686
 687                 case CdlNop:
 688                         SetResultSize(1);
 689                         cdr.Result[0] = cdr.StatP;
 690                         cdr.Stat = Acknowledge;
 691
 692                         if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
 693                         break;
 694
 695                 case CdlSetloc:
 696                         cdr.CmdProcess = 0;
 697                         SetResultSize(1);
 698                         cdr.StatP |= STATUS_ROTATING;
 699                         cdr.Result[0] = cdr.StatP;
 700                         cdr.Stat = Acknowledge;
 701                         break;
 702
 703                 case CdlPlay:
 704                         fake_subq_change = 0;
 705
 706                         if( cdr.Seeked == FALSE ) {
 707                                 memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
 708                                 cdr.Seeked = TRUE;
 709                         }
 710
 711                         /*
 712                         Rayman: detect track changes
 713                         - fixes logo freeze
 714
 715                         Twisted Metal 2: skip PREGAP + starting accurate SubQ
 716                         - plays tracks without retry play
 717
 718                         Wild 9: skip PREGAP + starting accurate SubQ
 719                         - plays tracks without retry play
 720                         */
 721                         /* unneeded with correct cdriso?
 722                         Set_Track();
 723                         */
 724                         Find_CurTrack();
 725                         ReadTrack( cdr.SetSectorPlay );
 726
 727                         // GameShark CD Player: Calls 2x + Play 2x
 728                         if( cdr.FastBackward || cdr.FastForward ) {
 729                                 if( cdr.FastForward ) cdr.FastForward--;
 730                                 if( cdr.FastBackward ) cdr.FastBackward--;
 731
 732                                 if( cdr.FastBackward == 0 && cdr.FastForward == 0 ) {
 733                                         if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
 734                                                 cdr.SetSectorPlay[0] = stat.Time[0];
 735                                                 cdr.SetSectorPlay[1] = stat.Time[1];
 736                                                 cdr.SetSectorPlay[2] = stat.Time[2];
 737                                         }
 738                                 }
 739                         }
 740
 741
 742                         if (!Config.Cdda) {
 743                                 // BIOS CD Player
 744                                 // - Pause player, hit Track 01/02/../xx (Setloc issued!!)
 745
 746                                 // GameShark CD Player: Resume play
 747                                 if( cdr.ParamC == 0 ) {
 748 #ifdef CDR_LOG___0
 749                                         CDR_LOG( "PLAY Resume @ %d:%d:%d\n",
 750                                                 cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 751 #endif
 752
 753                                         //CDR_play( cdr.SetSectorPlay );
 754                                 }
 755                                 else
 756                                 {
 757                                         // BIOS CD Player: Resume play
 758                                         if( cdr.Param[0] == 0 ) {
 759 #ifdef CDR_LOG___0
 760                                                 CDR_LOG( "PLAY Resume T0 @ %d:%d:%d\n",
 761                                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 762 #endif
 763
 764                                                 //CDR_play( cdr.SetSectorPlay );
 765                                         }
 766                                         else {
 767 #ifdef CDR_LOG___0
 768                                                 CDR_LOG( "PLAY Resume Td @ %d:%d:%d\n",
 769                                                         cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
 770 #endif
 771
 772                                                 // BIOS CD Player: Allow track replaying
 773                                                 StopCdda();
 774
 775
 776                                                 cdr.CurTrack = btoi( cdr.Param[0] );
 777
 778                                                 if (CDR_getTN(cdr.ResultTN) != -1) {
 779                                                         // check last track
 780                                                         if (cdr.CurTrack > cdr.ResultTN[1])
 781                                                                 cdr.CurTrack = cdr.ResultTN[1];
 782
 783                                                         if (CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD) != -1) {
 784                                                                 cdr.SetSectorPlay[0] = cdr.ResultTD[2];
 785                                                                 cdr.SetSectorPlay[1] = cdr.ResultTD[1];
 786                                                                 cdr.SetSectorPlay[2] = cdr.ResultTD[0];
 787
 788                                                                 // reset data
 789                                                                 //Set_Track();
 790                                                                 Find_CurTrack();
 791                                                                 ReadTrack( cdr.SetSectorPlay );
 792
 793                                                                 //CDR_play(cdr.SetSectorPlay);
 794                                                         }
 795                                                 }
 796                                         }
 797                                 }
 798                         }
 799
 800
 801                         // Vib Ribbon: gameplay checks flag
 802                         cdr.StatP &= ~STATUS_SEEK;
 803
 804
 805                         cdr.CmdProcess = 0;
 806                         SetResultSize(1);
 807                         cdr.StatP |= STATUS_ROTATING;
 808                         cdr.Result[0] = cdr.StatP;
 809                         cdr.Stat = Acknowledge;
 810
 811                         cdr.StatP |= STATUS_PLAY;
 812
 813
 814                         // BIOS player - set flag again
 815                         cdr.Play = TRUE;
 816
 817                         CDRPLAY_INT( cdReadTime );
 818                         break;
 819
 820                 case CdlForward:
 821                         cdr.CmdProcess = 0;
 822                         SetResultSize(1);
 823                         cdr.StatP |= STATUS_ROTATING;
 824                         cdr.Result[0] = cdr.StatP;
 825                         cdr.Stat = Complete;
 826
 827
 828                         // GameShark CD Player: Calls 2x + Play 2x
 829                         if( cdr.FastForward == 0 ) cdr.FastForward = 2;
 830                         else cdr.FastForward++;
 831
 832                         cdr.FastBackward = 0;
 833                         break;
 834
 835                 case CdlBackward:
 836                         cdr.CmdProcess = 0;
 837                         SetResultSize(1);
 838                         cdr.StatP |= STATUS_ROTATING;
 839                         cdr.Result[0] = cdr.StatP;
 840                         cdr.Stat = Complete;
 841
 842
 843                         // GameShark CD Player: Calls 2x + Play 2x
 844                         if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
 845                         else cdr.FastBackward++;
 846
 847                         cdr.FastForward = 0;
 848                         break;
 849
 850                 case CdlStandby:
 851                         cdr.CmdProcess = 0;
 852                         SetResultSize(1);
 853                         cdr.StatP |= STATUS_ROTATING;
 854                         cdr.Result[0] = cdr.StatP;
 855                         cdr.Stat = Complete;
 856                         break;
 857
 858                 case CdlStop:
 859                         cdr.CmdProcess = 0;
 860                         SetResultSize(1);
 861                         cdr.StatP &= ~STATUS_ROTATING;
 862                         cdr.Result[0] = cdr.StatP;
 863                         cdr.Stat = Complete;
 864 //                      cdr.Stat = Acknowledge;
 865
 866                         if (cdr.LidCheck == 0) cdr.LidCheck = 0x20;
 867                         break;
 868
 869                 case CdlPause:
 870                         SetResultSize(1);
 871                         cdr.Result[0] = cdr.StatP;
 872                         cdr.Stat = Acknowledge;
 873
 874                         /*
 875                         Gundam Battle Assault 2: much slower (*)
 876                         - Fixes boot, gameplay
 877
 878                         Hokuto no Ken 2: slower
 879                         - Fixes intro + subtitles
 880
 881                         InuYasha - Feudal Fairy Tale: slower
 882                         - Fixes battles
 883                         */
 884                         AddIrqQueue(CdlPause + 0x20, cdReadTime * 3);
 885                         cdr.Ctrl |= 0x80;
 886                         break;
 887
 888                 case CdlPause + 0x20:
 889                         SetResultSize(1);
 890                         cdr.StatP &= ~STATUS_READ;
 891                         cdr.StatP |= STATUS_ROTATING;
 892                         cdr.Result[0] = cdr.StatP;
 893                         cdr.Stat = Complete;
 894                         break;
 895
 896                 case CdlInit:
 897                         SetResultSize(1);
 898                         cdr.StatP = STATUS_ROTATING;
 899                         cdr.Result[0] = cdr.StatP;
 900                         cdr.Stat = Acknowledge;
 901 //                      if (!cdr.Init) {
 902                                 AddIrqQueue(CdlInit + 0x20, 0x800);
 903 //                      }
 904                 break;
 905
 906                 case CdlInit + 0x20:
 907                         SetResultSize(1);
 908                         cdr.Result[0] = cdr.StatP;
 909                         cdr.Stat = Complete;
 910                         cdr.Init = 1;
 911                         break;
 912
 913                 case CdlMute:
 914                         SetResultSize(1);
 915                         cdr.StatP |= STATUS_ROTATING;
 916                         cdr.Result[0] = cdr.StatP;
 917                         cdr.Stat = Acknowledge;
 918                         break;
 919
 920                 case CdlDemute:
 921                         SetResultSize(1);
 922                         cdr.StatP |= STATUS_ROTATING;
 923                         cdr.Result[0] = cdr.StatP;
 924                         cdr.Stat = Acknowledge;
 925                         break;
 926
 927                 case CdlSetfilter:
 928                         SetResultSize(1);
 929                         cdr.StatP |= STATUS_ROTATING;
 930                         cdr.Result[0] = cdr.StatP;
 931                         cdr.Stat = Acknowledge;
 932                         break;
 933
 934                 case CdlSetmode:
 935                         SetResultSize(1);
 936                         cdr.StatP |= STATUS_ROTATING;
 937                         cdr.Result[0] = cdr.StatP;
 938                         cdr.Stat = Acknowledge;
 939                         break;
 940
 941                 case CdlGetmode:
 942                         SetResultSize(6);
 943                         cdr.StatP |= STATUS_ROTATING;
 944                         cdr.Result[0] = cdr.StatP;
 945                         cdr.Result[1] = cdr.Mode;
 946                         cdr.Result[2] = cdr.File;
 947                         cdr.Result[3] = cdr.Channel;
 948                         cdr.Result[4] = 0;
 949                         cdr.Result[5] = 0;
 950                         cdr.Stat = Acknowledge;
 951                         break;
 952
 953                 case CdlGetlocL:
 954                         SetResultSize(8);
 955                         for (i = 0; i < 8; i++)
 956                                 cdr.Result[i] = cdr.Transfer[i];
 957                         cdr.Stat = Acknowledge;
 958                         break;
 959
 960                 case CdlGetlocP:
 961                         // GameShark CDX CD Player: uses 17 bytes output (wraps around)
 962                         SetResultSize(17);
 963                         memset( cdr.Result, 0, 16 );
 964
 965                         subq = (struct SubQ *)CDR_getBufferSub();
 966
 967                         if (subq != NULL) {
 968                                 if( cdr.Play && (cdr.Mode & MODE_CDDA) && !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
 969                                         // update subq
 970                                         ReadTrack( cdr.SetSectorPlay );
 971
 972                                 cdr.Result[0] = subq->TrackNumber;
 973                                 cdr.Result[1] = subq->IndexNumber;
 974                                 memcpy(cdr.Result + 2, subq->TrackRelativeAddress, 3);
 975                                 memcpy(cdr.Result + 5, subq->AbsoluteAddress, 3);
 976
 977
 978                                 // subQ integrity check - data only (skip audio)
 979                                 if( subq->TrackNumber == 1 && stat.Type == 0x01 ) {
 980                                 if (calcCrc((u8 *)subq + 12, 10) != (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
 981                                         memset(cdr.Result + 2, 0, 3 + 3); // CRC wrong, wipe out time data
 982                                 }
 983                                 }
 984                         } else {
 985                                 if( cdr.Play == FALSE || !(cdr.Mode & MODE_CDDA) || !(cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)) )
 986                                         Create_Fake_Subq();
 987
 988
 989                                 // track # / index #
 990                                 cdr.Result[0] = itob(cdr.CurTrack);
 991                                 cdr.Result[1] = itob(fake_subq_index);
 992
 993                                 // local
 994                                 cdr.Result[2] = itob( fake_subq_local[0] );
 995                                 cdr.Result[3] = itob( fake_subq_local[1] );
 996                                 cdr.Result[4] = itob( fake_subq_local[2] );
 997
 998                                 // absolute
 999                                 cdr.Result[5] = itob( fake_subq_real[0] );
1000                                 cdr.Result[6] = itob( fake_subq_real[1] );
1001                                 cdr.Result[7] = itob( fake_subq_real[2] );
1002                         }
1003
1004                         // redump.org - wipe time
1005                         if( !cdr.Play && CheckSBI(cdr.Result+5) ) {
1006                                 memset( cdr.Result+2, 0, 6 );
1007                         }
1008
1009                         cdr.Stat = Acknowledge;
1010                         break;
1011
1012                 case CdlGetTN:
1013                         // 5-Star Racing: don't stop CDDA
1014                         //
1015                         // Vib Ribbon: CD swap
1016                         StopReading();
1017
1018                         cdr.CmdProcess = 0;
1019                         SetResultSize(3);
1020                         cdr.StatP |= STATUS_ROTATING;
1021                         cdr.Result[0] = cdr.StatP;
1022                         if (CDR_getTN(cdr.ResultTN) == -1) {
1023                                 cdr.Stat = DiskError;
1024                                 cdr.Result[0] |= STATUS_ERROR;
1025                         } else {
1026                                 cdr.Stat = Acknowledge;
1027                                 cdr.Result[1] = itob(cdr.ResultTN[0]);
1028                                 cdr.Result[2] = itob(cdr.ResultTN[1]);
1029                         }
1030                         break;
1031
1032                 case CdlGetTD:
1033                         cdr.CmdProcess = 0;
1034                         cdr.Track = btoi(cdr.Param[0]);
1035                         SetResultSize(4);
1036                         cdr.StatP |= STATUS_ROTATING;
1037                         if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
1038                                 cdr.Stat = DiskError;
1039                                 cdr.Result[0] |= STATUS_ERROR;
1040                         } else {
1041                                 cdr.Stat = Acknowledge;
1042                                 cdr.Result[0] = cdr.StatP;
1043                                 cdr.Result[1] = itob(cdr.ResultTD[2]);
1044                                 cdr.Result[2] = itob(cdr.ResultTD[1]);
1045                                 cdr.Result[3] = itob(cdr.ResultTD[0]);
1046                         }
1047                         break;
1048
1049                 case CdlSeekL:
1050                         SetResultSize(1);
1051                         cdr.StatP |= STATUS_ROTATING;
1052                         cdr.Result[0] = cdr.StatP;
1053                         cdr.StatP |= STATUS_SEEK;
1054                         cdr.Stat = Acknowledge;
1055
1056                         /*
1057                         Crusaders of Might and Magic = 0.5x-4x
1058                         - fix cutscene speech start
1059
1060                         Eggs of Steel = 2x-?
1061                         - fix new game
1062
1063                         Medievil = ?-4x
1064                         - fix cutscene speech
1065
1066                         Rockman X5 = 0.5-4x
1067                         - fix capcom logo
1068                         */
1069                         AddIrqQueue(CdlSeekL + 0x20, cdReadTime * 4);
1070                         break;
1071
1072                 case CdlSeekL + 0x20:
1073                         SetResultSize(1);
1074                         cdr.StatP |= STATUS_ROTATING;
1075                         cdr.StatP &= ~STATUS_SEEK;
1076                         cdr.Result[0] = cdr.StatP;
1077                         cdr.Seeked = TRUE;
1078                         cdr.Stat = Complete;
1079
1080
1081                         // Mega Man Legends 2: must update read cursor for getlocp
1082                         ReadTrack( cdr.SetSector );
1083                         break;
1084
1085                 case CdlSeekP:
1086                         SetResultSize(1);
1087                         cdr.StatP |= STATUS_ROTATING;
1088                         cdr.Result[0] = cdr.StatP;
1089                         cdr.StatP |= STATUS_SEEK;
1090                         cdr.Stat = Acknowledge;
1091                         AddIrqQueue(CdlSeekP + 0x20, cdReadTime * 1);
1092                         break;
1093
1094                 case CdlSeekP + 0x20:
1095                         SetResultSize(1);
1096                         cdr.StatP |= STATUS_ROTATING;
1097                         cdr.StatP &= ~STATUS_SEEK;
1098                         cdr.Result[0] = cdr.StatP;
1099                         cdr.Stat = Complete;
1100                         cdr.Seeked = TRUE;
1101
1102                         // GameShark Music Player
1103                         memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 );
1104
1105                         // Tomb Raider 2: must update read cursor for getlocp
1106                         Find_CurTrack();
1107                         ReadTrack( cdr.SetSectorPlay );
1108                         break;
1109
1110                 case CdlTest:
1111                         cdr.Stat = Acknowledge;
1112                         switch (cdr.Param[0]) {
1113                                 case 0x20: // System Controller ROM Version
1114                                         SetResultSize(4);
1115                                         memcpy(cdr.Result, Test20, 4);
1116                                         break;
1117                                 case 0x22:
1118                                         SetResultSize(8);
1119                                         memcpy(cdr.Result, Test22, 4);
1120                                         break;
1121                                 case 0x23: case 0x24:
1122                                         SetResultSize(8);
1123                                         memcpy(cdr.Result, Test23, 4);
1124                                         break;
1125                         }
1126                         break;
1127
1128                 case CdlID:
1129                         SetResultSize(1);
1130                         cdr.StatP |= STATUS_ROTATING;
1131                         cdr.Result[0] = cdr.StatP;
1132                         cdr.Stat = Acknowledge;
1133                         AddIrqQueue(CdlID + 0x20, 0x800);
1134                         break;
1135
1136                 case CdlID + 0x20:
1137                         SetResultSize(8);
1138
1139                         if (CDR_getStatus(&stat) == -1) {
1140                                 cdr.Result[0] = 0x00; // 0x08 and cdr.Result[1]|0x10 : audio cd, enters cd player
1141                                 cdr.Result[1] = 0x80; // 0x80 leads to the menu in the bios, else loads CD
1142                         }
1143                         else {
1144                                 if (stat.Type == 2) {
1145                                         // Music CD
1146                                         cdr.Result[0] = 0x08;
1147                                         cdr.Result[1] = 0x10;
1148
1149                                         cdr.Result[1] |= 0x80;
1150                                 }
1151                                 else {
1152                                         // Data CD
1153                                         if (CdromId[0] == '\0') {
1154                                                 cdr.Result[0] = 0x00;
1155                                                 cdr.Result[1] = 0x80;
1156                                         }
1157                                         else {
1158                                                 cdr.Result[0] = 0x08;
1159                                                 cdr.Result[1] = 0x00;
1160                                         }
1161                                 }
1162                         }
1163
1164                         cdr.Result[2] = 0x00;
1165                         cdr.Result[3] = 0x00;
1166                         strncpy((char *)&cdr.Result[4], "PCSX", 4);
1167                         cdr.Stat = Complete;
1168                         break;
1169
1170                 case CdlReset:
1171                         SetResultSize(1);
1172                         cdr.StatP = STATUS_ROTATING;
1173                         cdr.Result[0] = cdr.StatP;
1174                         cdr.Stat = Acknowledge;
1175                         break;
1176
1177                 case CdlReadT:
1178                         SetResultSize(1);
1179                         cdr.StatP |= STATUS_ROTATING;
1180                         cdr.Result[0] = cdr.StatP;
1181                         cdr.Stat = Acknowledge;
1182                         AddIrqQueue(CdlReadT + 0x20, 0x800);
1183                         break;
1184
1185                 case CdlReadT + 0x20:
1186                         SetResultSize(1);
1187                         cdr.StatP |= STATUS_ROTATING;
1188                         cdr.Result[0] = cdr.StatP;
1189                         cdr.Stat = Complete;
1190                         break;
1191
1192                 case CdlReadToc:
1193                         SetResultSize(1);
1194                         cdr.StatP |= STATUS_ROTATING;
1195                         cdr.Result[0] = cdr.StatP;
1196                         cdr.Stat = Acknowledge;
1197                         AddIrqQueue(CdlReadToc + 0x20, 0x800);
1198                         break;
1199
1200                 case CdlReadToc + 0x20:
1201                         SetResultSize(1);
1202                         cdr.StatP |= STATUS_ROTATING;
1203                         cdr.Result[0] = cdr.StatP;
1204                         cdr.Stat = Complete;
1205                         break;
1206
1207                 case AUTOPAUSE:
1208                         cdr.OCUP = 0;
1209 /*                      SetResultSize(1);
1210                         StopCdda();
1211                         StopReading();
1212                         cdr.OCUP = 0;
1213                         cdr.StatP&=~0x20;
1214                         cdr.StatP|= 0x2;
1215                         cdr.Result[0] = cdr.StatP;
1216                         cdr.Stat = DataEnd;
1217 */                      AddIrqQueue(CdlPause, 0x800);
1218                         break;
1219
1220                 case READ_ACK:
1221                         if (!cdr.Reading) return;
1222
1223
1224                         // Fighting Force 2 - update subq time immediately
1225                         // - fixes new game
1226                         ReadTrack( cdr.SetSector );
1227
1228
1229                         // Crusaders of Might and Magic - update getlocl now
1230                         // - fixes cutscene speech
1231                         {
1232                                 u8 *buf = CDR_getBuffer();
1233                                 if (buf != NULL)
1234                                         memcpy(cdr.Transfer, buf, 8);
1235                         }
1236
1237
1238                         /*
1239                         Duke Nukem: Land of the Babes - seek then delay read for one frame
1240                         - fixes cutscenes
1241                         C-12 - Final Resistance - doesn't like seek
1242                         */
1243
1244                         if (!cdr.Seeked) {
1245                                 cdr.Seeked = TRUE;
1246
1247                                 cdr.StatP |= STATUS_SEEK;
1248                                 cdr.StatP &= ~STATUS_READ;
1249
1250                                 // Crusaders of Might and Magic - use short time
1251                                 // - fix cutscene speech (startup)
1252
1253                                 // ??? - use more accurate seek time later
1254                                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1255                         } else {
1256                                 cdr.StatP |= STATUS_READ;
1257                                 cdr.StatP &= ~STATUS_SEEK;
1258
1259                                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
1260                         }
1261
1262                         SetResultSize(1);
1263                         cdr.StatP |= STATUS_ROTATING;
1264                         cdr.Result[0] = cdr.StatP;
1265                         cdr.Stat = Acknowledge;
1266                         break;
1267
1268                 case 0xff:
1269                         return;
1270
1271                 default:
1272                         cdr.Stat = Complete;
1273                         break;
1274         }
1275
1276         Check_Shell( Irq );
1277
1278         cdr.ParamP = 0;
1279         cdr.ParamC = 0;
1280
1281         if (cdr.Stat != NoIntr && cdr.Reg2 != 0x18) {
1282                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1283         }
1284
1285 #ifdef CDR_LOG
1286         CDR_LOG("cdrInterrupt() Log: CDR Interrupt IRQ %x\n", Irq);
1287 #endif
1288 }
1289
1290 void cdrReadInterrupt() {
1291         u8 *buf;
1292
1293         if (!cdr.Reading)
1294                 return;
1295
1296         if (cdr.Irq || cdr.Stat) {
1297                 CDREAD_INT(0x100);
1298                 return;
1299         }
1300
1301 #ifdef CDR_LOG
1302         CDR_LOG("cdrReadInterrupt() Log: KEY END");
1303 #endif
1304
1305         cdr.OCUP = 1;
1306         SetResultSize(1);
1307         cdr.StatP |= STATUS_READ|STATUS_ROTATING;
1308         cdr.StatP &= ~STATUS_SEEK;
1309         cdr.Result[0] = cdr.StatP;
1310
1311         ReadTrack( cdr.SetSector );
1312
1313         buf = CDR_getBuffer();
1314         if (buf == NULL)
1315                 cdr.RErr = -1;
1316
1317         if (cdr.RErr == -1) {
1318 #ifdef CDR_LOG
1319                 fprintf(emuLog, "cdrReadInterrupt() Log: err\n");
1320 #endif
1321                 memset(cdr.Transfer, 0, DATA_SIZE);
1322                 cdr.Stat = DiskError;
1323                 cdr.Result[0] |= STATUS_ERROR;
1324                 CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
1325                 return;
1326         }
1327
1328         memcpy(cdr.Transfer, buf, DATA_SIZE);
1329         CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
1330
1331
1332 #ifdef CDR_LOG
1333         fprintf(emuLog, "cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
1334 #endif
1335
1336         if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
1337                 // Firemen 2: Multi-XA files - briefings, cutscenes
1338                 if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
1339                         cdr.File = cdr.Transfer[4 + 0];
1340                         cdr.Channel = cdr.Transfer[4 + 1];
1341                 }
1342
1343                 if ((cdr.Transfer[4 + 2] & 0x4) &&
1344                          (cdr.Transfer[4 + 1] == cdr.Channel) &&
1345                         (cdr.Transfer[4 + 0] == cdr.File)) {
1346                         int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
1347
1348                         if (!ret) {
1349                                 // only handle attenuator basic channel switch for now
1350                                 if (cdr.Xa.stereo) {
1351                                         int i;
1352                                         if ((cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1353                                             && !(cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1354                                         {
1355                                                 for (i = 0; i < cdr.Xa.nsamples; i++)
1356                                                         cdr.Xa.pcm[i*2 + 1] = cdr.Xa.pcm[i*2];
1357                                         }
1358                                         else if (!(cdr.AttenuatorLeft[0] | cdr.AttenuatorLeft[1])
1359                                             && (cdr.AttenuatorRight[0] | cdr.AttenuatorRight[1]))
1360                                         {
1361                                                 for (i = 0; i < cdr.Xa.nsamples; i++)
1362                                                         cdr.Xa.pcm[i*2] = cdr.Xa.pcm[i*2 + 1];
1363                                         }
1364                                 }
1365
1366                                 SPU_playADPCMchannel(&cdr.Xa);
1367                                 cdr.FirstSector = 0;
1368
1369 #if 0
1370                                 // Crash Team Racing: music, speech
1371                                 // - done using cdda decoded buffer (spu irq)
1372                                 // - don't do here
1373
1374                                 // signal ADPCM data ready
1375                                 psxHu32ref(0x1070) |= SWAP32((u32)0x200);
1376 #endif
1377                         }
1378                         else cdr.FirstSector = -1;
1379                 }
1380         }
1381
1382         cdr.SetSector[2]++;
1383         if (cdr.SetSector[2] == 75) {
1384                 cdr.SetSector[2] = 0;
1385                 cdr.SetSector[1]++;
1386                 if (cdr.SetSector[1] == 60) {
1387                         cdr.SetSector[1] = 0;
1388                         cdr.SetSector[0]++;
1389                 }
1390         }
1391
1392         cdr.Readed = 0;
1393
1394         // G-Police: Don't autopause ADPCM even if mode set (music)
1395         if ((cdr.Transfer[4 + 2] & 0x80) && (cdr.Mode & MODE_AUTOPAUSE) &&
1396                         (cdr.Transfer[4 + 2] & 0x4) != 0x4 ) { // EOF
1397 #ifdef CDR_LOG
1398                 CDR_LOG("cdrReadInterrupt() Log: Autopausing read\n");
1399 #endif
1400 //              AddIrqQueue(AUTOPAUSE, 0x2000);
1401                 AddIrqQueue(CdlPause, 0x2000);
1402         }
1403         else {
1404                 CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime);
1405         }
1406
1407         /*
1408         Croc 2: $40 - only FORM1 (*)
1409         Judge Dredd: $C8 - only FORM1 (*)
1410         Sim Theme Park - no adpcm at all (zero)
1411         */
1412
1413         if( (cdr.Mode & MODE_STRSND) == 0 || (cdr.Transfer[4+2] & 0x4) != 0x4 ) {
1414                 cdr.Stat = DataReady;
1415         } else {
1416                 // Breath of Fire 3 - fix inn sleeping
1417                 // Rockman X5 - no music restart problem
1418                 cdr.Stat = NoIntr;
1419         }
1420         psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1421
1422         Check_Shell(0);
1423 }
1424
1425 /*
1426 cdrRead0:
1427         bit 0 - 0 REG1 command send / 1 REG1 data read
1428         bit 1 - 0 data transfer finish / 1 data transfer ready/in progress
1429         bit 2 - unknown
1430         bit 3 - unknown
1431         bit 4 - unknown
1432         bit 5 - 1 result ready
1433         bit 6 - 1 dma ready
1434         bit 7 - 1 command being processed
1435 */
1436
1437 unsigned char cdrRead0(void) {
1438         if (cdr.ResultReady)
1439                 cdr.Ctrl |= 0x20;
1440         else
1441                 cdr.Ctrl &= ~0x20;
1442
1443         if (cdr.OCUP)
1444                 cdr.Ctrl |= 0x40;
1445 //  else
1446 //              cdr.Ctrl &= ~0x40;
1447
1448         // What means the 0x10 and the 0x08 bits? I only saw it used by the bios
1449         cdr.Ctrl |= 0x18;
1450
1451 #ifdef CDR_LOG
1452         CDR_LOG("cdrRead0() Log: CD0 Read: %x\n", cdr.Ctrl);
1453 #endif
1454
1455         return psxHu8(0x1800) = cdr.Ctrl;
1456 }
1457
1458 /*
1459 cdrWrite0:
1460         0 - to send a command / 1 - to get the result
1461 */
1462
1463 void cdrWrite0(unsigned char rt) {
1464 #ifdef CDR_LOG
1465         CDR_LOG("cdrWrite0() Log: CD0 write: %x\n", rt);
1466 #endif
1467         cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
1468 }
1469
1470 unsigned char cdrRead1(void) {
1471     if (cdr.ResultReady) { // && cdr.Ctrl & 0x1) {
1472                 // GameShark CDX CD Player: uses 17 bytes output (wraps around)
1473                 psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf];
1474                 cdr.ResultP++;
1475                 if (cdr.ResultP == cdr.ResultC)
1476                         cdr.ResultReady = 0;
1477         } else {
1478                 psxHu8(0x1801) = 0;
1479         }
1480 #ifdef CDR_LOG
1481         CDR_LOG("cdrRead1() Log: CD1 Read: %x\n", psxHu8(0x1801));
1482 #endif
1483         return psxHu8(0x1801);
1484 }
1485
1486 void cdrWrite1(unsigned char rt) {
1487         u8 set_loc[3];
1488         int i;
1489
1490 #ifdef CDR_LOG
1491         CDR_LOG("cdrWrite1() Log: CD1 write: %x (%s)\n", rt, CmdName[rt]);
1492 #endif
1493
1494
1495         // Tekken: CDXA fade-out
1496         if( (cdr.Ctrl & 3) == 3 ) {
1497                 cdr.AttenuatorRight[0] = rt;
1498         }
1499
1500
1501 //      psxHu8(0x1801) = rt;
1502         cdr.Cmd = rt;
1503         cdr.OCUP = 0;
1504
1505 #ifdef CDRCMD_DEBUG
1506         SysPrintf("cdrWrite1() Log: CD1 write: %x (%s)", rt, CmdName[rt]);
1507         if (cdr.ParamC) {
1508                 SysPrintf(" Param[%d] = {", cdr.ParamC);
1509                 for (i = 0; i < cdr.ParamC; i++)
1510                         SysPrintf(" %x,", cdr.Param[i]);
1511                 SysPrintf("}\n");
1512         } else {
1513                 SysPrintf("\n");
1514         }
1515 #endif
1516
1517         if (cdr.Ctrl & 0x3) return;
1518
1519         cdr.ResultReady = 0;
1520
1521         switch (cdr.Cmd) {
1522         case CdlSync:
1523                 cdr.Ctrl |= 0x80;
1524                 cdr.Stat = NoIntr;
1525                 AddIrqQueue(cdr.Cmd, 0x800);
1526                 break;
1527
1528         case CdlNop:
1529                 cdr.Ctrl |= 0x80;
1530                 cdr.Stat = NoIntr;
1531
1532                 // Twisted Metal 3 - fix music
1533                 AddIrqQueue(cdr.Cmd, 0x800);
1534                 break;
1535
1536         case CdlSetloc:
1537                 StopReading();
1538                 for (i = 0; i < 3; i++)
1539                         set_loc[i] = btoi(cdr.Param[i]);
1540                 i = abs(msf2sec(cdr.SetSector) - msf2sec(set_loc));
1541                 if (i > 16)
1542                         cdr.Seeked = FALSE;
1543                 memcpy(cdr.SetSector, set_loc, 3);
1544                 cdr.SetSector[3] = 0;
1545
1546                 /*
1547                    if ((cdr.SetSector[0] | cdr.SetSector[1] | cdr.SetSector[2]) == 0) {
1548                  *(u32 *)cdr.SetSector = *(u32 *)cdr.SetSectorSeek;
1549                  }*/
1550
1551                 cdr.Ctrl |= 0x80;
1552                 cdr.Stat = NoIntr;
1553                 AddIrqQueue(cdr.Cmd, 0x800);
1554                 break;
1555
1556         case CdlPlay:
1557                 // Vib Ribbon: try same track again
1558                 StopCdda();
1559
1560                 if (!cdr.SetSector[0] & !cdr.SetSector[1] & !cdr.SetSector[2]) {
1561                         if (CDR_getTN(cdr.ResultTN) != -1) {
1562                                 if (cdr.CurTrack > cdr.ResultTN[1])
1563                                         cdr.CurTrack = cdr.ResultTN[1];
1564                                 if (CDR_getTD((unsigned char)(cdr.CurTrack), cdr.ResultTD) != -1) {
1565                                         int tmp = cdr.ResultTD[2];
1566                                         cdr.ResultTD[2] = cdr.ResultTD[0];
1567                                         cdr.ResultTD[0] = tmp;
1568                                         if (!Config.Cdda) CDR_play(cdr.ResultTD);
1569                                 }
1570                         }
1571                 } else if (!Config.Cdda) {
1572                         CDR_play(cdr.SetSector);
1573                 }
1574
1575                 // Vib Ribbon - decoded buffer IRQ for CDDA reading
1576                 // - fixes ribbon timing + music CD mode
1577                 //TODO?
1578                 //CDRDBUF_INT( PSXCLK / 44100 * 0x100 );
1579
1580
1581                 cdr.Play = TRUE;
1582
1583                 cdr.StatP |= STATUS_SEEK;
1584                 cdr.StatP &= ~STATUS_ROTATING;
1585
1586                 cdr.Ctrl |= 0x80;
1587                 cdr.Stat = NoIntr;
1588                 AddIrqQueue(cdr.Cmd, 0x800);
1589                 break;
1590
1591         case CdlForward:
1592                 //if (cdr.CurTrack < 0xaa)
1593                 //      cdr.CurTrack++;
1594                 cdr.Ctrl |= 0x80;
1595                 cdr.Stat = NoIntr;
1596                 AddIrqQueue(cdr.Cmd, 0x800);
1597                 break;
1598
1599         case CdlBackward:
1600                 //if (cdr.CurTrack > 1)
1601                 //cdr.CurTrack--;
1602                 cdr.Ctrl |= 0x80;
1603                 cdr.Stat = NoIntr;
1604                 AddIrqQueue(cdr.Cmd, 0x800);
1605                 break;
1606
1607         case CdlReadN:
1608                 cdr.Irq = 0;
1609                 StopReading();
1610                 cdr.Ctrl|= 0x80;
1611                 cdr.Stat = NoIntr;
1612                 StartReading(1, 0x800);
1613                 break;
1614
1615         case CdlStandby:
1616                 StopCdda();
1617                 StopReading();
1618                 cdr.Ctrl |= 0x80;
1619                 cdr.Stat = NoIntr;
1620                 AddIrqQueue(cdr.Cmd, 0x800);
1621                 break;
1622
1623         case CdlStop:
1624                 // GameShark CD Player: Reset CDDA to track start
1625                 if( cdr.Play && CDR_getStatus(&stat) != -1 ) {
1626                         cdr.SetSectorPlay[0] = stat.Time[0];
1627                         cdr.SetSectorPlay[1] = stat.Time[1];
1628                         cdr.SetSectorPlay[2] = stat.Time[2];
1629
1630                         Find_CurTrack();
1631
1632
1633                         // grab time for current track
1634                         CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);
1635
1636                         cdr.SetSectorPlay[0] = cdr.ResultTD[2];
1637                         cdr.SetSectorPlay[1] = cdr.ResultTD[1];
1638                         cdr.SetSectorPlay[2] = cdr.ResultTD[0];
1639                 }
1640
1641                 StopCdda();
1642                 StopReading();
1643
1644                 cdr.Ctrl |= 0x80;
1645                 cdr.Stat = NoIntr;
1646                 AddIrqQueue(cdr.Cmd, 0x800);
1647                 break;
1648
1649         case CdlPause:
1650                 /*
1651                    GameShark CD Player: save time for resume
1652
1653                    Twisted Metal - World Tour: don't mix Setloc / CdlPlay cursors
1654                 */
1655
1656                 StopCdda();
1657                 StopReading();
1658                 cdr.Ctrl |= 0x80;
1659                 cdr.Stat = NoIntr;
1660
1661                 AddIrqQueue(cdr.Cmd, 0x800);
1662                 break;
1663
1664         case CdlReset:
1665         case CdlInit:
1666                 StopCdda();
1667                 StopReading();
1668                 cdr.Ctrl |= 0x80;
1669                 cdr.Stat = NoIntr;
1670                 AddIrqQueue(cdr.Cmd, 0x800);
1671                 break;
1672
1673         case CdlMute:
1674                 cdr.Muted = TRUE;
1675                 cdr.Ctrl |= 0x80;
1676                 cdr.Stat = NoIntr;
1677                 AddIrqQueue(cdr.Cmd, 0x800);
1678
1679                         // Duke Nukem - Time to Kill
1680                         // - do not directly set cd-xa volume
1681                         //SPU_writeRegister( H_CDLeft, 0x0000 );
1682                         //SPU_writeRegister( H_CDRight, 0x0000 );
1683                 break;
1684
1685         case CdlDemute:
1686                 cdr.Muted = FALSE;
1687                 cdr.Ctrl |= 0x80;
1688                 cdr.Stat = NoIntr;
1689                 AddIrqQueue(cdr.Cmd, 0x800);
1690
1691                         // Duke Nukem - Time to Kill
1692                         // - do not directly set cd-xa volume
1693                         //SPU_writeRegister( H_CDLeft, 0x7f00 );
1694                         //SPU_writeRegister( H_CDRight, 0x7f00 );
1695                 break;
1696
1697         case CdlSetfilter:
1698                 cdr.File = cdr.Param[0];
1699                 cdr.Channel = cdr.Param[1];
1700                 cdr.Ctrl |= 0x80;
1701                 cdr.Stat = NoIntr;
1702                 AddIrqQueue(cdr.Cmd, 0x800);
1703                 break;
1704
1705         case CdlSetmode:
1706 #ifdef CDR_LOG
1707                 CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
1708 #endif
1709                 cdr.Mode = cdr.Param[0];
1710                 cdr.Ctrl |= 0x80;
1711                 cdr.Stat = NoIntr;
1712                 AddIrqQueue(cdr.Cmd, 0x800);
1713
1714                 // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
1715                 // - fixes choppy movie sound
1716                 if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
1717                         StopCdda();
1718                 break;
1719
1720         case CdlGetmode:
1721                 cdr.Ctrl |= 0x80;
1722                 cdr.Stat = NoIntr;
1723                 AddIrqQueue(cdr.Cmd, 0x800);
1724                 break;
1725
1726         case CdlGetlocL:
1727                 cdr.Ctrl |= 0x80;
1728                 cdr.Stat = NoIntr;
1729
1730                 // Crusaders of Might and Magic - cutscene speech
1731                 AddIrqQueue(cdr.Cmd, 0x800);
1732                 break;
1733
1734         case CdlGetlocP:
1735                 cdr.Ctrl |= 0x80;
1736                 cdr.Stat = NoIntr;
1737
1738                 // GameShark CDX / Lite Player: pretty narrow time window
1739                 // - doesn't always work due to time inprecision
1740                 //AddIrqQueue(cdr.Cmd, 0x28);
1741
1742                 // Tomb Raider 2 - cdda
1743                 //AddIrqQueue(cdr.Cmd, 0x40);
1744
1745                 // rearmed: the above works in pcsxr-svn, but breaks here
1746                 // (TOCA world touring cars), perhaps some other code is not merged yet
1747                 AddIrqQueue(cdr.Cmd, 0x1000);
1748                 break;
1749
1750         case CdlGetTN:
1751                 cdr.Ctrl |= 0x80;
1752                 cdr.Stat = NoIntr;
1753                 //AddIrqQueue(cdr.Cmd, 0x800);
1754
1755                 // GameShark CDX CD Player: very long time
1756                 AddIrqQueue(cdr.Cmd, 0x100000);
1757                 break;
1758
1759         case CdlGetTD:
1760                 cdr.Ctrl |= 0x80;
1761                 cdr.Stat = NoIntr;
1762                 AddIrqQueue(cdr.Cmd, 0x800);
1763                 break;
1764
1765         case CdlSeekL:
1766 //                      ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1767                 cdr.Ctrl |= 0x80;
1768                 cdr.Stat = NoIntr;
1769                 AddIrqQueue(cdr.Cmd, 0x800);
1770
1771                 StopCdda();
1772                 StopReading();
1773
1774                 break;
1775
1776         case CdlSeekP:
1777 //              ((u32 *)cdr.SetSectorSeek)[0] = ((u32 *)cdr.SetSector)[0];
1778                 cdr.Ctrl |= 0x80;
1779                 cdr.Stat = NoIntr;
1780
1781                 // Tomb Raider 2 - reset cdda
1782                 StopCdda();
1783                 StopReading();
1784
1785                 AddIrqQueue(cdr.Cmd, 0x800);
1786                 break;
1787
1788         // Destruction Derby: read TOC? GetTD after this
1789         case CdlReadT:
1790                 cdr.Ctrl |= 0x80;
1791                 cdr.Stat = NoIntr;
1792                 AddIrqQueue(cdr.Cmd, 0x800);
1793                 break;
1794
1795         case CdlTest:
1796                 cdr.Ctrl |= 0x80;
1797                 cdr.Stat = NoIntr;
1798                 AddIrqQueue(cdr.Cmd, 0x800);
1799                 break;
1800
1801         case CdlID:
1802                 cdr.Ctrl |= 0x80;
1803                 cdr.Stat = NoIntr;
1804                 AddIrqQueue(cdr.Cmd, 0x800);
1805                 break;
1806
1807         case CdlReadS:
1808                 cdr.Irq = 0;
1809                 StopReading();
1810                 cdr.Ctrl |= 0x80;
1811                 cdr.Stat = NoIntr;
1812                 StartReading(2, 0x800);
1813                 break;
1814
1815         case CdlReadToc:
1816                 cdr.Ctrl |= 0x80;
1817                 cdr.Stat = NoIntr;
1818                 AddIrqQueue(cdr.Cmd, 0x800);
1819                 break;
1820
1821         default:
1822                 cdr.ParamP = 0;
1823                 cdr.ParamC = 0;
1824 #ifdef CDR_LOG
1825                 CDR_LOG("cdrWrite1() Log: Unknown command: %x\n", cdr.Cmd);
1826 #endif
1827                 return;
1828         }
1829         if (cdr.Stat != NoIntr) {
1830                 psxHu32ref(0x1070) |= SWAP32((u32)0x4);
1831         }
1832 }
1833
1834 unsigned char cdrRead2(void) {
1835         unsigned char ret;
1836
1837         if (cdr.Readed == 0) {
1838                 ret = 0;
1839         } else {
1840                 ret = *pTransfer++;
1841         }
1842
1843 #ifdef CDR_LOG
1844         CDR_LOG("cdrRead2() Log: CD2 Read: %x\n", ret);
1845 #endif
1846         return ret;
1847 }
1848
1849 void cdrWrite2(unsigned char rt) {
1850 #ifdef CDR_LOG
1851         CDR_LOG("cdrWrite2() Log: CD2 write: %x\n", rt);
1852 #endif
1853
1854         // Tekken: CDXA fade-out
1855         if( (cdr.Ctrl & 3) == 2 ) {
1856                 cdr.AttenuatorLeft[0] = rt;
1857         }
1858         else if( (cdr.Ctrl & 3) == 3 ) {
1859                 cdr.AttenuatorRight[1] = rt;
1860         }
1861
1862
1863         if (cdr.Ctrl & 0x1) {
1864                 switch (rt) {
1865                         case 0x07:
1866                                 cdr.ParamP = 0;
1867                                 cdr.ParamC = 0;
1868                                 cdr.ResultReady = 1; //0;
1869                                 cdr.Ctrl &= ~3; //cdr.Ctrl = 0;
1870                                 break;
1871
1872                         default:
1873                                 cdr.Reg2 = rt;
1874                                 break;
1875                 }
1876         } else if (!(cdr.Ctrl & 0x3) && cdr.ParamP < 8) {
1877                 cdr.Param[cdr.ParamP++] = rt;
1878                 cdr.ParamC++;
1879         }
1880 }
1881
1882 unsigned char cdrRead3(void) {
1883         if (cdr.Stat) {
1884                 if (cdr.Ctrl & 0x1)
1885                         psxHu8(0x1803) = cdr.Stat | 0xE0;
1886                 else
1887                         psxHu8(0x1803) = 0xff;
1888         } else {
1889                 psxHu8(0x1803) = 0;
1890         }
1891 #ifdef CDR_LOG
1892         CDR_LOG("cdrRead3() Log: CD3 Read: %x\n", psxHu8(0x1803));
1893 #endif
1894         return psxHu8(0x1803);
1895 }
1896
1897 void cdrWrite3(unsigned char rt) {
1898 #ifdef CDR_LOG
1899         CDR_LOG("cdrWrite3() Log: CD3 write: %x\n", rt);
1900 #endif
1901
1902         // Tekken: CDXA fade-out
1903         if( (cdr.Ctrl & 3) == 2 ) {
1904                 cdr.AttenuatorLeft[1] = rt;
1905         }
1906         else if( (cdr.Ctrl & 3) == 3 && rt == 0x20 ) {
1907 #ifdef CDR_LOG
1908                 CDR_LOG( "CD-XA Volume: %X %X | %X %X\n",
1909                         cdr.AttenuatorLeft[0], cdr.AttenuatorLeft[1],
1910                         cdr.AttenuatorRight[0], cdr.AttenuatorRight[1] );
1911 #endif
1912         }
1913
1914
1915         // GameShark CDX CD Player: Irq timing mania
1916         if( rt == 0 &&
1917                         cdr.Irq != 0 && cdr.Irq != 0xff &&
1918                         cdr.ResultReady == 0 ) {
1919
1920                 // GS CDX: ~0x28 cycle timing - way too precise
1921                 if( cdr.Irq == CdlGetlocP ) {
1922                         cdrInterrupt();
1923
1924                         psxRegs.interrupt &= ~(1 << PSXINT_CDR);
1925                 }
1926         }
1927
1928
1929         if (rt == 0x07 && (cdr.Ctrl & 3) == 1) {
1930                 cdr.Stat = 0;
1931
1932                 if (cdr.Irq == 0xff) {
1933                         cdr.Irq = 0;
1934                         return;
1935                 }
1936
1937                 // XA streaming - incorrect timing because of this reschedule
1938                 // - Final Fantasy Tactics
1939                 // - various other games
1940
1941                 if (cdr.Reading && !cdr.ResultReady) {
1942                         int left = psxRegs.intCycle[PSXINT_CDREAD].sCycle + psxRegs.intCycle[PSXINT_CDREAD].cycle - psxRegs.cycle;
1943                         int time = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
1944                         if (Config.CdrReschedule != 2)
1945                         if (left < time / 2 || Config.CdrReschedule) { // rearmed guesswork hack
1946                                 //printf("-- resched %d -> %d\n", left, time);
1947                                 CDREAD_INT(time);
1948                         }
1949                 }
1950
1951                 return;
1952         }
1953
1954         if (rt == 0x80 && !(cdr.Ctrl & 0x3) && cdr.Readed == 0) {
1955                 cdr.Readed = 1;
1956                 pTransfer = cdr.Transfer;
1957
1958                 switch (cdr.Mode & 0x30) {
1959                         case MODE_SIZE_2328:
1960                         case 0x00:
1961                                 pTransfer += 12;
1962                                 break;
1963
1964                         case MODE_SIZE_2340:
1965                                 pTransfer += 0;
1966                                 break;
1967
1968                         default:
1969                                 break;
1970                 }
1971         }
1972 }
1973
1974 void psxDma3(u32 madr, u32 bcr, u32 chcr) {
1975         u32 cdsize;
1976         int size;
1977         u8 *ptr;
1978
1979 #ifdef CDR_LOG
1980         CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
1981 #endif
1982
1983         switch (chcr) {
1984                 case 0x11000000:
1985                 case 0x11400100:
1986                         if (cdr.Readed == 0) {
1987 #ifdef CDR_LOG
1988                                 CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
1989 #endif
1990                                 break;
1991                         }
1992
1993                         cdsize = (bcr & 0xffff) * 4;
1994
1995                         // Ape Escape: bcr = 0001 / 0000
1996                         // - fix boot
1997                         if( cdsize == 0 )
1998                         {
1999                                 switch (cdr.Mode & 0x30) {
2000                                         case 0x00: cdsize = 2048; break;
2001                                         case MODE_SIZE_2328: cdsize = 2328; break;
2002                                         case MODE_SIZE_2340: cdsize = 2340; break;
2003                                 }
2004                         }
2005
2006
2007                         ptr = (u8 *)PSXM(madr);
2008                         if (ptr == NULL) {
2009 #ifdef CPU_LOG
2010                                 CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
2011 #endif
2012                                 break;
2013                         }
2014
2015                         /*
2016                         GS CDX: Enhancement CD crash
2017                         - Setloc 0:0:0
2018                         - CdlPlay
2019                         - Spams DMA3 and gets buffer overrun
2020                         */
2021                         size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
2022                         if (size > cdsize)
2023                                 size = cdsize;
2024                         if (size > 0)
2025                         {
2026                                 memcpy(ptr, pTransfer, size);
2027                         }
2028
2029                         psxCpu->Clear(madr, cdsize / 4);
2030                         pTransfer += cdsize;
2031
2032
2033                         // burst vs normal
2034                         if( chcr == 0x11400100 ) {
2035                                 CDRDMA_INT( (cdsize/4) / 4 );
2036                         }
2037                         else if( chcr == 0x11000000 ) {
2038                                 CDRDMA_INT( (cdsize/4) * 1 );
2039                         }
2040                         return;
2041
2042                 default:
2043 #ifdef CDR_LOG
2044                         CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
2045 #endif
2046                         break;
2047         }
2048
2049         HW_DMA3_CHCR &= SWAP32(~0x01000000);
2050         DMA_INTERRUPT(3);
2051 }
2052
2053 void cdrDmaInterrupt()
2054 {
2055         if (HW_DMA3_CHCR & SWAP32(0x01000000))
2056         {
2057                 HW_DMA3_CHCR &= SWAP32(~0x01000000);
2058                 DMA_INTERRUPT(3);
2059         }
2060 }
2061
2062 void cdrReset() {
2063         memset(&cdr, 0, sizeof(cdr));
2064         cdr.CurTrack = 1;
2065         cdr.File = 1;
2066         cdr.Channel = 1;
2067         pTransfer = cdr.Transfer;
2068
2069         // BIOS player - default values
2070         cdr.AttenuatorLeft[0] = 0x80;
2071         cdr.AttenuatorLeft[1] = 0x00;
2072         cdr.AttenuatorRight[0] = 0x80;
2073         cdr.AttenuatorRight[1] = 0x00;
2074 }
2075
2076 int cdrFreeze(gzFile f, int Mode) {
2077         u32 tmp;
2078
2079         if( Mode == 0 ) {
2080                 StopCdda();
2081         }
2082
2083         gzfreeze(&cdr, sizeof(cdr));
2084
2085         if (Mode == 1)
2086                 tmp = pTransfer - cdr.Transfer;
2087
2088         gzfreeze(&tmp, sizeof(tmp));
2089
2090         if (Mode == 0) {
2091                 pTransfer = cdr.Transfer + tmp;
2092
2093                 if (cdr.Play && !Config.Cdda)
2094                         CDR_play(cdr.SetSectorPlay);
2095         }
2096
2097         return 0;
2098 }
2099
2100 void LidInterrupt() {
2101         cdr.LidCheck = 0x20; // start checker
2102
2103         CDRLID_INT( cdReadTime * 3 );
2104
2105         // generate interrupt if none active - open or close
2106         if (cdr.Irq == 0 || cdr.Irq == 0xff) {
2107                 cdr.Ctrl |= 0x80;
2108                 cdr.Stat = NoIntr;
2109                 AddIrqQueue(CdlNop, 0x800);
2110         }
2111 }