| 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 02110-1301 USA. * |
| 18 | ***************************************************************************/ |
| 19 | |
| 20 | /* |
| 21 | * Handles all CD-ROM registers and functions. |
| 22 | */ |
| 23 | |
| 24 | #include <assert.h> |
| 25 | #include "cdrom.h" |
| 26 | #include "ppf.h" |
| 27 | #include "psxdma.h" |
| 28 | #include "arm_features.h" |
| 29 | |
| 30 | /* logging */ |
| 31 | #if 0 |
| 32 | #define CDR_LOG SysPrintf |
| 33 | #else |
| 34 | #define CDR_LOG(...) |
| 35 | #endif |
| 36 | #if 0 |
| 37 | #define CDR_LOG_I SysPrintf |
| 38 | #else |
| 39 | #define CDR_LOG_I(fmt, ...) \ |
| 40 | log_unhandled("%u cdrom: " fmt, psxRegs.cycle, ##__VA_ARGS__) |
| 41 | #endif |
| 42 | #if 0 |
| 43 | #define CDR_LOG_IO SysPrintf |
| 44 | #else |
| 45 | #define CDR_LOG_IO(...) |
| 46 | #endif |
| 47 | //#define CDR_LOG_CMD_IRQ |
| 48 | |
| 49 | static struct { |
| 50 | // unused members maintain savesate compatibility |
| 51 | unsigned char unused0; |
| 52 | unsigned char unused1; |
| 53 | unsigned char Reg2; |
| 54 | unsigned char unused2; |
| 55 | unsigned char Ctrl; |
| 56 | unsigned char Stat; |
| 57 | |
| 58 | unsigned char StatP; |
| 59 | |
| 60 | unsigned char Transfer[DATA_SIZE]; |
| 61 | struct { |
| 62 | unsigned char Track; |
| 63 | unsigned char Index; |
| 64 | unsigned char Relative[3]; |
| 65 | unsigned char Absolute[3]; |
| 66 | } subq; |
| 67 | unsigned char TrackChanged; |
| 68 | unsigned char unused3[3]; |
| 69 | unsigned int freeze_ver; |
| 70 | |
| 71 | unsigned char Prev[4]; |
| 72 | unsigned char Param[8]; |
| 73 | unsigned char Result[16]; |
| 74 | |
| 75 | unsigned char ParamC; |
| 76 | unsigned char ParamP; |
| 77 | unsigned char ResultC; |
| 78 | unsigned char ResultP; |
| 79 | unsigned char ResultReady; |
| 80 | unsigned char Cmd; |
| 81 | unsigned char SubqForwardSectors; |
| 82 | unsigned char SetlocPending; |
| 83 | u32 Reading; |
| 84 | |
| 85 | unsigned char ResultTN[6]; |
| 86 | unsigned char ResultTD[4]; |
| 87 | unsigned char SetSectorPlay[4]; |
| 88 | unsigned char SetSectorEnd[4]; |
| 89 | unsigned char SetSector[4]; |
| 90 | unsigned char Track; |
| 91 | boolean Play, Muted; |
| 92 | int CurTrack; |
| 93 | int Mode, File, Channel; |
| 94 | unsigned char LocL[8]; |
| 95 | int FirstSector; |
| 96 | |
| 97 | xa_decode_t Xa; |
| 98 | |
| 99 | u16 FifoOffset; |
| 100 | u16 FifoSize; |
| 101 | |
| 102 | u16 CmdInProgress; |
| 103 | u8 Irq1Pending; |
| 104 | u8 unused5; |
| 105 | u32 unused6; |
| 106 | |
| 107 | u8 unused7; |
| 108 | |
| 109 | u8 DriveState; |
| 110 | u8 FastForward; |
| 111 | u8 FastBackward; |
| 112 | u8 unused8; |
| 113 | |
| 114 | u8 AttenuatorLeftToLeft, AttenuatorLeftToRight; |
| 115 | u8 AttenuatorRightToRight, AttenuatorRightToLeft; |
| 116 | u8 AttenuatorLeftToLeftT, AttenuatorLeftToRightT; |
| 117 | u8 AttenuatorRightToRightT, AttenuatorRightToLeftT; |
| 118 | } cdr; |
| 119 | static s16 read_buf[CD_FRAMESIZE_RAW/2]; |
| 120 | |
| 121 | /* CD-ROM magic numbers */ |
| 122 | #define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */ |
| 123 | #define CdlNop 1 |
| 124 | #define CdlSetloc 2 |
| 125 | #define CdlPlay 3 |
| 126 | #define CdlForward 4 |
| 127 | #define CdlBackward 5 |
| 128 | #define CdlReadN 6 |
| 129 | #define CdlStandby 7 |
| 130 | #define CdlStop 8 |
| 131 | #define CdlPause 9 |
| 132 | #define CdlReset 10 |
| 133 | #define CdlMute 11 |
| 134 | #define CdlDemute 12 |
| 135 | #define CdlSetfilter 13 |
| 136 | #define CdlSetmode 14 |
| 137 | #define CdlGetparam 15 |
| 138 | #define CdlGetlocL 16 |
| 139 | #define CdlGetlocP 17 |
| 140 | #define CdlReadT 18 |
| 141 | #define CdlGetTN 19 |
| 142 | #define CdlGetTD 20 |
| 143 | #define CdlSeekL 21 |
| 144 | #define CdlSeekP 22 |
| 145 | #define CdlSetclock 23 |
| 146 | #define CdlGetclock 24 |
| 147 | #define CdlTest 25 |
| 148 | #define CdlID 26 |
| 149 | #define CdlReadS 27 |
| 150 | #define CdlInit 28 |
| 151 | #define CdlGetQ 29 |
| 152 | #define CdlReadToc 30 |
| 153 | |
| 154 | #ifdef CDR_LOG_CMD_IRQ |
| 155 | static const char * const CmdName[0x100] = { |
| 156 | "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay", |
| 157 | "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby", |
| 158 | "CdlStop", "CdlPause", "CdlReset", "CdlMute", |
| 159 | "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetparam", |
| 160 | "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN", |
| 161 | "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock", |
| 162 | "CdlGetclock", "CdlTest", "CdlID", "CdlReadS", |
| 163 | "CdlInit", NULL, "CDlReadToc", NULL |
| 164 | }; |
| 165 | #endif |
| 166 | |
| 167 | unsigned char Test04[] = { 0 }; |
| 168 | unsigned char Test05[] = { 0 }; |
| 169 | unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 }; |
| 170 | unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F }; |
| 171 | unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 }; |
| 172 | |
| 173 | // cdr.Stat: |
| 174 | #define NoIntr 0 |
| 175 | #define DataReady 1 |
| 176 | #define Complete 2 |
| 177 | #define Acknowledge 3 |
| 178 | #define DataEnd 4 |
| 179 | #define DiskError 5 |
| 180 | |
| 181 | /* Modes flags */ |
| 182 | #define MODE_SPEED (1<<7) // 0x80 |
| 183 | #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off |
| 184 | #define MODE_SIZE_2340 (1<<5) // 0x20 |
| 185 | #define MODE_SIZE_2328 (1<<4) // 0x10 |
| 186 | #define MODE_SIZE_2048 (0<<4) // 0x00 |
| 187 | #define MODE_SF (1<<3) // 0x08 channel on/off |
| 188 | #define MODE_REPORT (1<<2) // 0x04 |
| 189 | #define MODE_AUTOPAUSE (1<<1) // 0x02 |
| 190 | #define MODE_CDDA (1<<0) // 0x01 |
| 191 | |
| 192 | /* Status flags */ |
| 193 | #define STATUS_PLAY (1<<7) // 0x80 |
| 194 | #define STATUS_SEEK (1<<6) // 0x40 |
| 195 | #define STATUS_READ (1<<5) // 0x20 |
| 196 | #define STATUS_SHELLOPEN (1<<4) // 0x10 |
| 197 | #define STATUS_UNKNOWN3 (1<<3) // 0x08 |
| 198 | #define STATUS_UNKNOWN2 (1<<2) // 0x04 |
| 199 | #define STATUS_ROTATING (1<<1) // 0x02 |
| 200 | #define STATUS_ERROR (1<<0) // 0x01 |
| 201 | |
| 202 | /* Errors */ |
| 203 | #define ERROR_NOTREADY (1<<7) // 0x80 |
| 204 | #define ERROR_INVALIDCMD (1<<6) // 0x40 |
| 205 | #define ERROR_INVALIDARG (1<<5) // 0x20 |
| 206 | |
| 207 | // 1x = 75 sectors per second |
| 208 | // PSXCLK = 1 sec in the ps |
| 209 | // so (PSXCLK / 75) = cdr read time (linuzappz) |
| 210 | #define cdReadTime (PSXCLK / 75) |
| 211 | |
| 212 | #define LOCL_INVALID 0xff |
| 213 | #define SUBQ_FORWARD_SECTORS 2u |
| 214 | |
| 215 | enum drive_state { |
| 216 | DRIVESTATE_STANDBY = 0, // pause, play, read |
| 217 | DRIVESTATE_LID_OPEN, |
| 218 | DRIVESTATE_RESCAN_CD, |
| 219 | DRIVESTATE_PREPARE_CD, |
| 220 | DRIVESTATE_STOPPED, |
| 221 | }; |
| 222 | |
| 223 | static struct CdrStat stat; |
| 224 | |
| 225 | static unsigned int msf2sec(const u8 *msf) { |
| 226 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; |
| 227 | } |
| 228 | |
| 229 | // for that weird psemu API.. |
| 230 | static unsigned int fsm2sec(const u8 *msf) { |
| 231 | return ((msf[2] * 60 + msf[1]) * 75) + msf[0]; |
| 232 | } |
| 233 | |
| 234 | static void sec2msf(unsigned int s, u8 *msf) { |
| 235 | msf[0] = s / 75 / 60; |
| 236 | s = s - msf[0] * 75 * 60; |
| 237 | msf[1] = s / 75; |
| 238 | s = s - msf[1] * 75; |
| 239 | msf[2] = s; |
| 240 | } |
| 241 | |
| 242 | // cdrInterrupt |
| 243 | #define CDR_INT(eCycle) { \ |
| 244 | psxRegs.interrupt |= (1 << PSXINT_CDR); \ |
| 245 | psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \ |
| 246 | psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \ |
| 247 | new_dyna_set_event(PSXINT_CDR, eCycle); \ |
| 248 | } |
| 249 | |
| 250 | // cdrPlayReadInterrupt |
| 251 | #define CDRPLAYREAD_INT(eCycle, isFirst) { \ |
| 252 | u32 e_ = eCycle; \ |
| 253 | psxRegs.interrupt |= (1 << PSXINT_CDREAD); \ |
| 254 | if (isFirst) \ |
| 255 | psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \ |
| 256 | else \ |
| 257 | psxRegs.intCycle[PSXINT_CDREAD].sCycle += psxRegs.intCycle[PSXINT_CDREAD].cycle; \ |
| 258 | psxRegs.intCycle[PSXINT_CDREAD].cycle = e_; \ |
| 259 | new_dyna_set_event_abs(PSXINT_CDREAD, psxRegs.intCycle[PSXINT_CDREAD].sCycle + e_); \ |
| 260 | } |
| 261 | |
| 262 | // cdrLidSeekInterrupt |
| 263 | #define CDRLID_INT(eCycle) { \ |
| 264 | psxRegs.interrupt |= (1 << PSXINT_CDRLID); \ |
| 265 | psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \ |
| 266 | psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \ |
| 267 | new_dyna_set_event(PSXINT_CDRLID, eCycle); \ |
| 268 | } |
| 269 | |
| 270 | #define StopReading() { \ |
| 271 | cdr.Reading = 0; \ |
| 272 | psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \ |
| 273 | } |
| 274 | |
| 275 | #define StopCdda() { \ |
| 276 | if (cdr.Play && !Config.Cdda) CDR_stop(); \ |
| 277 | cdr.Play = FALSE; \ |
| 278 | cdr.FastForward = 0; \ |
| 279 | cdr.FastBackward = 0; \ |
| 280 | } |
| 281 | |
| 282 | #define SetPlaySeekRead(x, f) { \ |
| 283 | x &= ~(STATUS_PLAY | STATUS_SEEK | STATUS_READ); \ |
| 284 | x |= f; \ |
| 285 | } |
| 286 | |
| 287 | #define SetResultSize(size) { \ |
| 288 | cdr.ResultP = 0; \ |
| 289 | cdr.ResultC = size; \ |
| 290 | cdr.ResultReady = 1; \ |
| 291 | } |
| 292 | |
| 293 | static void setIrq(int log_cmd) |
| 294 | { |
| 295 | if (cdr.Stat & cdr.Reg2) |
| 296 | psxHu32ref(0x1070) |= SWAP32((u32)0x4); |
| 297 | |
| 298 | #ifdef CDR_LOG_CMD_IRQ |
| 299 | if (cdr.Stat) |
| 300 | { |
| 301 | int i; |
| 302 | CDR_LOG_I("CDR IRQ=%d cmd %02x stat %02x: ", |
| 303 | !!(cdr.Stat & cdr.Reg2), log_cmd, cdr.Stat); |
| 304 | for (i = 0; i < cdr.ResultC; i++) |
| 305 | SysPrintf("%02x ", cdr.Result[i]); |
| 306 | SysPrintf("\n"); |
| 307 | } |
| 308 | #endif |
| 309 | } |
| 310 | |
| 311 | // timing used in this function was taken from tests on real hardware |
| 312 | // (yes it's slow, but you probably don't want to modify it) |
| 313 | void cdrLidSeekInterrupt(void) |
| 314 | { |
| 315 | CDR_LOG_I("%s cdr.DriveState=%d\n", __func__, cdr.DriveState); |
| 316 | |
| 317 | switch (cdr.DriveState) { |
| 318 | default: |
| 319 | case DRIVESTATE_STANDBY: |
| 320 | StopCdda(); |
| 321 | StopReading(); |
| 322 | SetPlaySeekRead(cdr.StatP, 0); |
| 323 | |
| 324 | if (CDR_getStatus(&stat) == -1) |
| 325 | return; |
| 326 | |
| 327 | if (stat.Status & STATUS_SHELLOPEN) |
| 328 | { |
| 329 | memset(cdr.Prev, 0xff, sizeof(cdr.Prev)); |
| 330 | cdr.DriveState = DRIVESTATE_LID_OPEN; |
| 331 | CDRLID_INT(0x800); |
| 332 | } |
| 333 | break; |
| 334 | |
| 335 | case DRIVESTATE_LID_OPEN: |
| 336 | if (CDR_getStatus(&stat) == -1) |
| 337 | stat.Status &= ~STATUS_SHELLOPEN; |
| 338 | |
| 339 | // 02, 12, 10 |
| 340 | if (!(cdr.StatP & STATUS_SHELLOPEN)) { |
| 341 | cdr.StatP |= STATUS_SHELLOPEN; |
| 342 | |
| 343 | // could generate error irq here, but real hardware |
| 344 | // only sometimes does that |
| 345 | // (not done when lots of commands are sent?) |
| 346 | |
| 347 | CDRLID_INT(cdReadTime * 30); |
| 348 | break; |
| 349 | } |
| 350 | else if (cdr.StatP & STATUS_ROTATING) { |
| 351 | cdr.StatP &= ~STATUS_ROTATING; |
| 352 | } |
| 353 | else if (!(stat.Status & STATUS_SHELLOPEN)) { |
| 354 | // closed now |
| 355 | CheckCdrom(); |
| 356 | |
| 357 | // cdr.StatP STATUS_SHELLOPEN is "sticky" |
| 358 | // and is only cleared by CdlNop |
| 359 | |
| 360 | cdr.DriveState = DRIVESTATE_RESCAN_CD; |
| 361 | CDRLID_INT(cdReadTime * 105); |
| 362 | break; |
| 363 | } |
| 364 | |
| 365 | // recheck for close |
| 366 | CDRLID_INT(cdReadTime * 3); |
| 367 | break; |
| 368 | |
| 369 | case DRIVESTATE_RESCAN_CD: |
| 370 | cdr.StatP |= STATUS_ROTATING; |
| 371 | cdr.DriveState = DRIVESTATE_PREPARE_CD; |
| 372 | |
| 373 | // this is very long on real hardware, over 6 seconds |
| 374 | // make it a bit faster here... |
| 375 | CDRLID_INT(cdReadTime * 150); |
| 376 | break; |
| 377 | |
| 378 | case DRIVESTATE_PREPARE_CD: |
| 379 | if (cdr.StatP & STATUS_SEEK) { |
| 380 | SetPlaySeekRead(cdr.StatP, 0); |
| 381 | cdr.DriveState = DRIVESTATE_STANDBY; |
| 382 | } |
| 383 | else { |
| 384 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK); |
| 385 | CDRLID_INT(cdReadTime * 26); |
| 386 | } |
| 387 | break; |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | static void Find_CurTrack(const u8 *time) |
| 392 | { |
| 393 | int current, sect; |
| 394 | |
| 395 | current = msf2sec(time); |
| 396 | |
| 397 | for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) { |
| 398 | CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD); |
| 399 | sect = fsm2sec(cdr.ResultTD); |
| 400 | if (sect - current >= 150) |
| 401 | break; |
| 402 | } |
| 403 | } |
| 404 | |
| 405 | static void generate_subq(const u8 *time) |
| 406 | { |
| 407 | unsigned char start[3], next[3]; |
| 408 | unsigned int this_s, start_s, next_s, pregap; |
| 409 | int relative_s; |
| 410 | |
| 411 | CDR_getTD(cdr.CurTrack, start); |
| 412 | if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) { |
| 413 | pregap = 150; |
| 414 | CDR_getTD(cdr.CurTrack + 1, next); |
| 415 | } |
| 416 | else { |
| 417 | // last track - cd size |
| 418 | pregap = 0; |
| 419 | next[0] = cdr.SetSectorEnd[2]; |
| 420 | next[1] = cdr.SetSectorEnd[1]; |
| 421 | next[2] = cdr.SetSectorEnd[0]; |
| 422 | } |
| 423 | |
| 424 | this_s = msf2sec(time); |
| 425 | start_s = fsm2sec(start); |
| 426 | next_s = fsm2sec(next); |
| 427 | |
| 428 | cdr.TrackChanged = FALSE; |
| 429 | |
| 430 | if (next_s - this_s < pregap) { |
| 431 | cdr.TrackChanged = TRUE; |
| 432 | cdr.CurTrack++; |
| 433 | start_s = next_s; |
| 434 | } |
| 435 | |
| 436 | cdr.subq.Index = 1; |
| 437 | |
| 438 | relative_s = this_s - start_s; |
| 439 | if (relative_s < 0) { |
| 440 | cdr.subq.Index = 0; |
| 441 | relative_s = -relative_s; |
| 442 | } |
| 443 | sec2msf(relative_s, cdr.subq.Relative); |
| 444 | |
| 445 | cdr.subq.Track = itob(cdr.CurTrack); |
| 446 | cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]); |
| 447 | cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]); |
| 448 | cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]); |
| 449 | cdr.subq.Absolute[0] = itob(time[0]); |
| 450 | cdr.subq.Absolute[1] = itob(time[1]); |
| 451 | cdr.subq.Absolute[2] = itob(time[2]); |
| 452 | } |
| 453 | |
| 454 | static int ReadTrack(const u8 *time) |
| 455 | { |
| 456 | unsigned char tmp[3]; |
| 457 | int read_ok; |
| 458 | |
| 459 | tmp[0] = itob(time[0]); |
| 460 | tmp[1] = itob(time[1]); |
| 461 | tmp[2] = itob(time[2]); |
| 462 | |
| 463 | if (memcmp(cdr.Prev, tmp, 3) == 0) |
| 464 | return 1; |
| 465 | |
| 466 | CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]); |
| 467 | |
| 468 | read_ok = CDR_readTrack(tmp); |
| 469 | if (read_ok) |
| 470 | memcpy(cdr.Prev, tmp, 3); |
| 471 | return read_ok; |
| 472 | } |
| 473 | |
| 474 | static void UpdateSubq(const u8 *time) |
| 475 | { |
| 476 | const struct SubQ *subq; |
| 477 | u16 crc; |
| 478 | |
| 479 | if (CheckSBI(time)) |
| 480 | return; |
| 481 | |
| 482 | subq = (struct SubQ *)CDR_getBufferSub(MSF2SECT(time[0], time[1], time[2])); |
| 483 | if (subq != NULL && cdr.CurTrack == 1) { |
| 484 | crc = calcCrc((u8 *)subq + 12, 10); |
| 485 | if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) { |
| 486 | cdr.subq.Track = subq->TrackNumber; |
| 487 | cdr.subq.Index = subq->IndexNumber; |
| 488 | memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3); |
| 489 | memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3); |
| 490 | } |
| 491 | else { |
| 492 | CDR_LOG_I("subq bad crc @%02d:%02d:%02d\n", |
| 493 | time[0], time[1], time[2]); |
| 494 | } |
| 495 | } |
| 496 | else { |
| 497 | generate_subq(time); |
| 498 | } |
| 499 | |
| 500 | CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n", |
| 501 | cdr.subq.Track, cdr.subq.Index, |
| 502 | cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2], |
| 503 | cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]); |
| 504 | } |
| 505 | |
| 506 | static void cdrPlayInterrupt_Autopause() |
| 507 | { |
| 508 | u32 abs_lev_max = 0; |
| 509 | boolean abs_lev_chselect; |
| 510 | u32 i; |
| 511 | |
| 512 | if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) { |
| 513 | CDR_LOG( "CDDA STOP\n" ); |
| 514 | |
| 515 | // Magic the Gathering |
| 516 | // - looping territory cdda |
| 517 | |
| 518 | // ...? |
| 519 | //cdr.ResultReady = 1; |
| 520 | //cdr.Stat = DataReady; |
| 521 | cdr.Stat = DataEnd; |
| 522 | setIrq(0x1000); // 0x1000 just for logging purposes |
| 523 | |
| 524 | StopCdda(); |
| 525 | SetPlaySeekRead(cdr.StatP, 0); |
| 526 | } |
| 527 | else if (((cdr.Mode & MODE_REPORT) || cdr.FastForward || cdr.FastBackward)) { |
| 528 | cdr.Result[0] = cdr.StatP; |
| 529 | cdr.Result[1] = cdr.subq.Track; |
| 530 | cdr.Result[2] = cdr.subq.Index; |
| 531 | |
| 532 | abs_lev_chselect = cdr.subq.Absolute[1] & 0x01; |
| 533 | |
| 534 | /* 8 is a hack. For accuracy, it should be 588. */ |
| 535 | for (i = 0; i < 8; i++) |
| 536 | { |
| 537 | abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect])); |
| 538 | } |
| 539 | abs_lev_max = MIN_VALUE(abs_lev_max, 32767); |
| 540 | abs_lev_max |= abs_lev_chselect << 15; |
| 541 | |
| 542 | if (cdr.subq.Absolute[2] & 0x10) { |
| 543 | cdr.Result[3] = cdr.subq.Relative[0]; |
| 544 | cdr.Result[4] = cdr.subq.Relative[1] | 0x80; |
| 545 | cdr.Result[5] = cdr.subq.Relative[2]; |
| 546 | } |
| 547 | else { |
| 548 | cdr.Result[3] = cdr.subq.Absolute[0]; |
| 549 | cdr.Result[4] = cdr.subq.Absolute[1]; |
| 550 | cdr.Result[5] = cdr.subq.Absolute[2]; |
| 551 | } |
| 552 | |
| 553 | cdr.Result[6] = abs_lev_max >> 0; |
| 554 | cdr.Result[7] = abs_lev_max >> 8; |
| 555 | |
| 556 | // Rayman: Logo freeze (resultready + dataready) |
| 557 | cdr.ResultReady = 1; |
| 558 | cdr.Stat = DataReady; |
| 559 | |
| 560 | SetResultSize(8); |
| 561 | setIrq(0x1001); |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | static int cdrSeekTime(unsigned char *target) |
| 566 | { |
| 567 | int diff = msf2sec(cdr.SetSectorPlay) - msf2sec(target); |
| 568 | int seekTime = abs(diff) * (cdReadTime / 200); |
| 569 | /* |
| 570 | * Gameblabla : |
| 571 | * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball |
| 572 | * and was unreliable for that game. |
| 573 | * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly. |
| 574 | * |
| 575 | * Obviously, this isn't perfect but right now, it should be a bit better. |
| 576 | * Games to test this against if you change that setting : |
| 577 | * - Driver (titlescreen music delay and retry mission) |
| 578 | * - Worms Pinball (Will either not boot or crash in the memory card screen) |
| 579 | * - Viewpoint (short pauses if the delay in the ingame music is too long) |
| 580 | * |
| 581 | * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping. |
| 582 | * However, 1000000 is not enough for Worms Pinball to reliably boot. |
| 583 | */ |
| 584 | if(seekTime > 3386880 * 2) seekTime = 3386880 * 2; |
| 585 | CDR_LOG("seek: %.2f %.2f\n", (float)seekTime / PSXCLK, (float)seekTime / cdReadTime); |
| 586 | return seekTime; |
| 587 | } |
| 588 | |
| 589 | static u32 cdrAlignTimingHack(u32 cycles) |
| 590 | { |
| 591 | /* |
| 592 | * timing hack for T'ai Fu - Wrath of the Tiger: |
| 593 | * The game has a bug where it issues some cdc commands from a low priority |
| 594 | * vint handler, however there is a higher priority default bios handler |
| 595 | * that acks the vint irq and returns, so game's handler is not reached |
| 596 | * (see bios irq handler chains at e004 and the game's irq handling func |
| 597 | * at 80036810). For the game to work, vint has to arrive after the bios |
| 598 | * vint handler rejects some other irq (of which only cd and rcnt2 are |
| 599 | * active), but before the game's handler loop reads I_STAT. The time |
| 600 | * window for this is quite small (~1k cycles of so). Apparently this |
| 601 | * somehow happens naturally on the real hardware. |
| 602 | * |
| 603 | * Note: always enforcing this breaks other games like Crash PAL version |
| 604 | * (inputs get dropped because bios handler doesn't see interrupts). |
| 605 | */ |
| 606 | u32 vint_rel; |
| 607 | if (psxRegs.cycle - rcnts[3].cycleStart > 250000) |
| 608 | return cycles; |
| 609 | vint_rel = rcnts[3].cycleStart + 63000 - psxRegs.cycle; |
| 610 | vint_rel += PSXCLK / 60; |
| 611 | while ((s32)(vint_rel - cycles) < 0) |
| 612 | vint_rel += PSXCLK / 60; |
| 613 | return vint_rel; |
| 614 | } |
| 615 | |
| 616 | static void cdrUpdateTransferBuf(const u8 *buf); |
| 617 | static void cdrReadInterrupt(void); |
| 618 | static void cdrPrepCdda(s16 *buf, int samples); |
| 619 | static void cdrAttenuate(s16 *buf, int samples, int stereo); |
| 620 | |
| 621 | static void msfiAdd(u8 *msfi, u32 count) |
| 622 | { |
| 623 | assert(count < 75); |
| 624 | msfi[2] += count; |
| 625 | if (msfi[2] >= 75) { |
| 626 | msfi[2] -= 75; |
| 627 | msfi[1]++; |
| 628 | if (msfi[1] == 60) { |
| 629 | msfi[1] = 0; |
| 630 | msfi[0]++; |
| 631 | } |
| 632 | } |
| 633 | } |
| 634 | |
| 635 | void cdrPlayReadInterrupt(void) |
| 636 | { |
| 637 | if (cdr.Reading) { |
| 638 | cdrReadInterrupt(); |
| 639 | return; |
| 640 | } |
| 641 | |
| 642 | if (!cdr.Play) return; |
| 643 | |
| 644 | CDR_LOG( "CDDA - %d:%d:%d\n", |
| 645 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] ); |
| 646 | |
| 647 | SetPlaySeekRead(cdr.StatP, STATUS_PLAY); |
| 648 | if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) { |
| 649 | StopCdda(); |
| 650 | SetPlaySeekRead(cdr.StatP, 0); |
| 651 | cdr.TrackChanged = TRUE; |
| 652 | } |
| 653 | else { |
| 654 | CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf); |
| 655 | } |
| 656 | |
| 657 | if (!cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT))) |
| 658 | cdrPlayInterrupt_Autopause(); |
| 659 | |
| 660 | if (!cdr.Muted && !Config.Cdda) { |
| 661 | cdrPrepCdda(read_buf, CD_FRAMESIZE_RAW / 4); |
| 662 | cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1); |
| 663 | SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW, psxRegs.cycle, cdr.FirstSector); |
| 664 | cdr.FirstSector = 0; |
| 665 | } |
| 666 | |
| 667 | msfiAdd(cdr.SetSectorPlay, 1); |
| 668 | |
| 669 | // update for CdlGetlocP/autopause |
| 670 | generate_subq(cdr.SetSectorPlay); |
| 671 | |
| 672 | CDRPLAYREAD_INT(cdReadTime, 0); |
| 673 | } |
| 674 | |
| 675 | #define CMD_PART2 0x100 |
| 676 | #define CMD_WHILE_NOT_READY 0x200 |
| 677 | |
| 678 | void cdrInterrupt(void) { |
| 679 | int start_rotating = 0; |
| 680 | int error = 0; |
| 681 | u32 cycles, seekTime = 0; |
| 682 | u32 second_resp_time = 0; |
| 683 | const void *buf; |
| 684 | u8 ParamC; |
| 685 | u8 set_loc[3]; |
| 686 | int read_ok; |
| 687 | u16 not_ready = 0; |
| 688 | u16 Cmd; |
| 689 | int i; |
| 690 | |
| 691 | if (cdr.Stat) { |
| 692 | CDR_LOG_I("cmd %02x with irqstat %x\n", |
| 693 | cdr.CmdInProgress, cdr.Stat); |
| 694 | return; |
| 695 | } |
| 696 | if (cdr.Irq1Pending) { |
| 697 | // hand out the "newest" sector, according to nocash |
| 698 | cdrUpdateTransferBuf(CDR_getBuffer()); |
| 699 | CDR_LOG_I("%x:%02x:%02x loaded on ack, cmd=%02x res=%02x\n", |
| 700 | cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2], |
| 701 | cdr.CmdInProgress, cdr.Irq1Pending); |
| 702 | SetResultSize(1); |
| 703 | cdr.Result[0] = cdr.Irq1Pending; |
| 704 | cdr.Stat = (cdr.Irq1Pending & STATUS_ERROR) ? DiskError : DataReady; |
| 705 | cdr.Irq1Pending = 0; |
| 706 | setIrq(0x1003); |
| 707 | return; |
| 708 | } |
| 709 | |
| 710 | // default response |
| 711 | SetResultSize(1); |
| 712 | cdr.Result[0] = cdr.StatP; |
| 713 | cdr.Stat = Acknowledge; |
| 714 | |
| 715 | Cmd = cdr.CmdInProgress; |
| 716 | cdr.CmdInProgress = 0; |
| 717 | ParamC = cdr.ParamC; |
| 718 | |
| 719 | if (Cmd < 0x100) { |
| 720 | cdr.Ctrl &= ~0x80; |
| 721 | cdr.ParamC = 0; |
| 722 | cdr.Cmd = 0; |
| 723 | } |
| 724 | |
| 725 | switch (cdr.DriveState) { |
| 726 | case DRIVESTATE_PREPARE_CD: |
| 727 | if (Cmd > 2) { |
| 728 | // Syphon filter 2 expects commands to work shortly after it sees |
| 729 | // STATUS_ROTATING, so give up trying to emulate the startup seq |
| 730 | cdr.DriveState = DRIVESTATE_STANDBY; |
| 731 | cdr.StatP &= ~STATUS_SEEK; |
| 732 | psxRegs.interrupt &= ~(1 << PSXINT_CDRLID); |
| 733 | break; |
| 734 | } |
| 735 | // fallthrough |
| 736 | case DRIVESTATE_LID_OPEN: |
| 737 | case DRIVESTATE_RESCAN_CD: |
| 738 | // no disk or busy with the initial scan, allowed cmds are limited |
| 739 | not_ready = CMD_WHILE_NOT_READY; |
| 740 | break; |
| 741 | } |
| 742 | |
| 743 | switch (Cmd | not_ready) { |
| 744 | case CdlNop: |
| 745 | case CdlNop + CMD_WHILE_NOT_READY: |
| 746 | if (cdr.DriveState != DRIVESTATE_LID_OPEN) |
| 747 | cdr.StatP &= ~STATUS_SHELLOPEN; |
| 748 | break; |
| 749 | |
| 750 | case CdlSetloc: |
| 751 | case CdlSetloc + CMD_WHILE_NOT_READY: |
| 752 | CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]); |
| 753 | |
| 754 | // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75 |
| 755 | if (((cdr.Param[0] & 0x0F) > 0x09) || (cdr.Param[0] > 0x99) || ((cdr.Param[1] & 0x0F) > 0x09) || (cdr.Param[1] >= 0x60) || ((cdr.Param[2] & 0x0F) > 0x09) || (cdr.Param[2] >= 0x75)) |
| 756 | { |
| 757 | CDR_LOG_I("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]); |
| 758 | error = ERROR_INVALIDARG; |
| 759 | goto set_error; |
| 760 | } |
| 761 | else |
| 762 | { |
| 763 | for (i = 0; i < 3; i++) |
| 764 | set_loc[i] = btoi(cdr.Param[i]); |
| 765 | memcpy(cdr.SetSector, set_loc, 3); |
| 766 | cdr.SetSector[3] = 0; |
| 767 | cdr.SetlocPending = 1; |
| 768 | } |
| 769 | break; |
| 770 | |
| 771 | do_CdlPlay: |
| 772 | case CdlPlay: |
| 773 | StopCdda(); |
| 774 | StopReading(); |
| 775 | |
| 776 | cdr.FastBackward = 0; |
| 777 | cdr.FastForward = 0; |
| 778 | |
| 779 | // BIOS CD Player |
| 780 | // - Pause player, hit Track 01/02/../xx (Setloc issued!!) |
| 781 | |
| 782 | if (ParamC != 0 && cdr.Param[0] != 0) { |
| 783 | int track = btoi( cdr.Param[0] ); |
| 784 | |
| 785 | if (track <= cdr.ResultTN[1]) |
| 786 | cdr.CurTrack = track; |
| 787 | |
| 788 | CDR_LOG("PLAY track %d\n", cdr.CurTrack); |
| 789 | |
| 790 | if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) { |
| 791 | for (i = 0; i < 3; i++) |
| 792 | set_loc[i] = cdr.ResultTD[2 - i]; |
| 793 | seekTime = cdrSeekTime(set_loc); |
| 794 | memcpy(cdr.SetSectorPlay, set_loc, 3); |
| 795 | } |
| 796 | } |
| 797 | else if (cdr.SetlocPending) { |
| 798 | seekTime = cdrSeekTime(cdr.SetSector); |
| 799 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); |
| 800 | } |
| 801 | else { |
| 802 | CDR_LOG("PLAY Resume @ %d:%d:%d\n", |
| 803 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]); |
| 804 | } |
| 805 | cdr.SetlocPending = 0; |
| 806 | |
| 807 | /* |
| 808 | Rayman: detect track changes |
| 809 | - fixes logo freeze |
| 810 | |
| 811 | Twisted Metal 2: skip PREGAP + starting accurate SubQ |
| 812 | - plays tracks without retry play |
| 813 | |
| 814 | Wild 9: skip PREGAP + starting accurate SubQ |
| 815 | - plays tracks without retry play |
| 816 | */ |
| 817 | Find_CurTrack(cdr.SetSectorPlay); |
| 818 | generate_subq(cdr.SetSectorPlay); |
| 819 | cdr.LocL[0] = LOCL_INVALID; |
| 820 | cdr.SubqForwardSectors = 1; |
| 821 | cdr.TrackChanged = FALSE; |
| 822 | cdr.FirstSector = 1; |
| 823 | |
| 824 | if (!Config.Cdda) |
| 825 | CDR_play(cdr.SetSectorPlay); |
| 826 | |
| 827 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING); |
| 828 | |
| 829 | // BIOS player - set flag again |
| 830 | cdr.Play = TRUE; |
| 831 | |
| 832 | CDRPLAYREAD_INT(cdReadTime + seekTime, 1); |
| 833 | start_rotating = 1; |
| 834 | break; |
| 835 | |
| 836 | case CdlForward: |
| 837 | // TODO: error 80 if stopped |
| 838 | cdr.Stat = Complete; |
| 839 | |
| 840 | // GameShark CD Player: Calls 2x + Play 2x |
| 841 | cdr.FastForward = 1; |
| 842 | cdr.FastBackward = 0; |
| 843 | break; |
| 844 | |
| 845 | case CdlBackward: |
| 846 | cdr.Stat = Complete; |
| 847 | |
| 848 | // GameShark CD Player: Calls 2x + Play 2x |
| 849 | cdr.FastBackward = 1; |
| 850 | cdr.FastForward = 0; |
| 851 | break; |
| 852 | |
| 853 | case CdlStandby: |
| 854 | if (cdr.DriveState != DRIVESTATE_STOPPED) { |
| 855 | error = ERROR_INVALIDARG; |
| 856 | goto set_error; |
| 857 | } |
| 858 | second_resp_time = cdReadTime * 125 / 2; |
| 859 | start_rotating = 1; |
| 860 | break; |
| 861 | |
| 862 | case CdlStandby + CMD_PART2: |
| 863 | cdr.Stat = Complete; |
| 864 | break; |
| 865 | |
| 866 | case CdlStop: |
| 867 | if (cdr.Play) { |
| 868 | // grab time for current track |
| 869 | CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD); |
| 870 | |
| 871 | cdr.SetSectorPlay[0] = cdr.ResultTD[2]; |
| 872 | cdr.SetSectorPlay[1] = cdr.ResultTD[1]; |
| 873 | cdr.SetSectorPlay[2] = cdr.ResultTD[0]; |
| 874 | } |
| 875 | |
| 876 | StopCdda(); |
| 877 | StopReading(); |
| 878 | SetPlaySeekRead(cdr.StatP, 0); |
| 879 | cdr.StatP &= ~STATUS_ROTATING; |
| 880 | cdr.LocL[0] = LOCL_INVALID; |
| 881 | |
| 882 | second_resp_time = 0x800; |
| 883 | if (cdr.DriveState == DRIVESTATE_STANDBY) |
| 884 | second_resp_time = cdReadTime * 30 / 2; |
| 885 | |
| 886 | cdr.DriveState = DRIVESTATE_STOPPED; |
| 887 | break; |
| 888 | |
| 889 | case CdlStop + CMD_PART2: |
| 890 | cdr.Stat = Complete; |
| 891 | break; |
| 892 | |
| 893 | case CdlPause: |
| 894 | StopCdda(); |
| 895 | StopReading(); |
| 896 | /* |
| 897 | Gundam Battle Assault 2: much slower (*) |
| 898 | - Fixes boot, gameplay |
| 899 | |
| 900 | Hokuto no Ken 2: slower |
| 901 | - Fixes intro + subtitles |
| 902 | |
| 903 | InuYasha - Feudal Fairy Tale: slower |
| 904 | - Fixes battles |
| 905 | */ |
| 906 | /* Gameblabla - Tightening the timings (as taken from Duckstation). |
| 907 | * The timings from Duckstation are based upon hardware tests. |
| 908 | * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode, |
| 909 | * seems to be timing sensitive as it can depend on the CPU's clock speed. |
| 910 | * */ |
| 911 | if (!(cdr.StatP & (STATUS_PLAY | STATUS_READ))) |
| 912 | { |
| 913 | second_resp_time = 7000; |
| 914 | } |
| 915 | else |
| 916 | { |
| 917 | second_resp_time = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * 1000000); |
| 918 | } |
| 919 | SetPlaySeekRead(cdr.StatP, 0); |
| 920 | break; |
| 921 | |
| 922 | case CdlPause + CMD_PART2: |
| 923 | cdr.Stat = Complete; |
| 924 | break; |
| 925 | |
| 926 | case CdlReset: |
| 927 | case CdlReset + CMD_WHILE_NOT_READY: |
| 928 | StopCdda(); |
| 929 | StopReading(); |
| 930 | SetPlaySeekRead(cdr.StatP, 0); |
| 931 | cdr.LocL[0] = LOCL_INVALID; |
| 932 | cdr.Muted = FALSE; |
| 933 | cdr.Mode = MODE_SIZE_2340; /* This fixes This is Football 2, Pooh's Party lockups */ |
| 934 | second_resp_time = not_ready ? 70000 : 4100000; |
| 935 | start_rotating = 1; |
| 936 | break; |
| 937 | |
| 938 | case CdlReset + CMD_PART2: |
| 939 | case CdlReset + CMD_PART2 + CMD_WHILE_NOT_READY: |
| 940 | cdr.Stat = Complete; |
| 941 | break; |
| 942 | |
| 943 | case CdlMute: |
| 944 | cdr.Muted = TRUE; |
| 945 | break; |
| 946 | |
| 947 | case CdlDemute: |
| 948 | cdr.Muted = FALSE; |
| 949 | break; |
| 950 | |
| 951 | case CdlSetfilter: |
| 952 | cdr.File = cdr.Param[0]; |
| 953 | cdr.Channel = cdr.Param[1]; |
| 954 | break; |
| 955 | |
| 956 | case CdlSetmode: |
| 957 | case CdlSetmode + CMD_WHILE_NOT_READY: |
| 958 | CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]); |
| 959 | cdr.Mode = cdr.Param[0]; |
| 960 | break; |
| 961 | |
| 962 | case CdlGetparam: |
| 963 | case CdlGetparam + CMD_WHILE_NOT_READY: |
| 964 | /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */ |
| 965 | SetResultSize(5); |
| 966 | cdr.Result[1] = cdr.Mode; |
| 967 | cdr.Result[2] = 0; |
| 968 | cdr.Result[3] = cdr.File; |
| 969 | cdr.Result[4] = cdr.Channel; |
| 970 | break; |
| 971 | |
| 972 | case CdlGetlocL: |
| 973 | if (cdr.LocL[0] == LOCL_INVALID) { |
| 974 | error = 0x80; |
| 975 | goto set_error; |
| 976 | } |
| 977 | SetResultSize(8); |
| 978 | memcpy(cdr.Result, cdr.LocL, 8); |
| 979 | break; |
| 980 | |
| 981 | case CdlGetlocP: |
| 982 | SetResultSize(8); |
| 983 | memcpy(&cdr.Result, &cdr.subq, 8); |
| 984 | break; |
| 985 | |
| 986 | case CdlReadT: // SetSession? |
| 987 | // really long |
| 988 | second_resp_time = cdReadTime * 290 / 4; |
| 989 | start_rotating = 1; |
| 990 | break; |
| 991 | |
| 992 | case CdlReadT + CMD_PART2: |
| 993 | cdr.Stat = Complete; |
| 994 | break; |
| 995 | |
| 996 | case CdlGetTN: |
| 997 | SetResultSize(3); |
| 998 | if (CDR_getTN(cdr.ResultTN) == -1) { |
| 999 | cdr.Stat = DiskError; |
| 1000 | cdr.Result[0] |= STATUS_ERROR; |
| 1001 | } else { |
| 1002 | cdr.Stat = Acknowledge; |
| 1003 | cdr.Result[1] = itob(cdr.ResultTN[0]); |
| 1004 | cdr.Result[2] = itob(cdr.ResultTN[1]); |
| 1005 | } |
| 1006 | break; |
| 1007 | |
| 1008 | case CdlGetTD: |
| 1009 | cdr.Track = btoi(cdr.Param[0]); |
| 1010 | SetResultSize(4); |
| 1011 | if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) { |
| 1012 | cdr.Stat = DiskError; |
| 1013 | cdr.Result[0] |= STATUS_ERROR; |
| 1014 | } else { |
| 1015 | cdr.Stat = Acknowledge; |
| 1016 | cdr.Result[0] = cdr.StatP; |
| 1017 | cdr.Result[1] = itob(cdr.ResultTD[2]); |
| 1018 | cdr.Result[2] = itob(cdr.ResultTD[1]); |
| 1019 | /* According to Nocash's documentation, the function doesn't care about ff. |
| 1020 | * This can be seen also in Mednafen's implementation. */ |
| 1021 | //cdr.Result[3] = itob(cdr.ResultTD[0]); |
| 1022 | } |
| 1023 | break; |
| 1024 | |
| 1025 | case CdlSeekL: |
| 1026 | case CdlSeekP: |
| 1027 | StopCdda(); |
| 1028 | StopReading(); |
| 1029 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING); |
| 1030 | |
| 1031 | seekTime = cdrSeekTime(cdr.SetSector); |
| 1032 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); |
| 1033 | /* |
| 1034 | Crusaders of Might and Magic = 0.5x-4x |
| 1035 | - fix cutscene speech start |
| 1036 | |
| 1037 | Eggs of Steel = 2x-? |
| 1038 | - fix new game |
| 1039 | |
| 1040 | Medievil = ?-4x |
| 1041 | - fix cutscene speech |
| 1042 | |
| 1043 | Rockman X5 = 0.5-4x |
| 1044 | - fix capcom logo |
| 1045 | */ |
| 1046 | second_resp_time = cdReadTime + seekTime; |
| 1047 | start_rotating = 1; |
| 1048 | break; |
| 1049 | |
| 1050 | case CdlSeekL + CMD_PART2: |
| 1051 | case CdlSeekP + CMD_PART2: |
| 1052 | SetPlaySeekRead(cdr.StatP, 0); |
| 1053 | cdr.Result[0] = cdr.StatP; |
| 1054 | cdr.Stat = Complete; |
| 1055 | |
| 1056 | Find_CurTrack(cdr.SetSectorPlay); |
| 1057 | read_ok = ReadTrack(cdr.SetSectorPlay); |
| 1058 | if (read_ok && (buf = CDR_getBuffer())) |
| 1059 | memcpy(cdr.LocL, buf, 8); |
| 1060 | UpdateSubq(cdr.SetSectorPlay); |
| 1061 | cdr.TrackChanged = FALSE; |
| 1062 | break; |
| 1063 | |
| 1064 | case CdlTest: |
| 1065 | case CdlTest + CMD_WHILE_NOT_READY: |
| 1066 | switch (cdr.Param[0]) { |
| 1067 | case 0x20: // System Controller ROM Version |
| 1068 | SetResultSize(4); |
| 1069 | memcpy(cdr.Result, Test20, 4); |
| 1070 | break; |
| 1071 | case 0x22: |
| 1072 | SetResultSize(8); |
| 1073 | memcpy(cdr.Result, Test22, 4); |
| 1074 | break; |
| 1075 | case 0x23: case 0x24: |
| 1076 | SetResultSize(8); |
| 1077 | memcpy(cdr.Result, Test23, 4); |
| 1078 | break; |
| 1079 | } |
| 1080 | break; |
| 1081 | |
| 1082 | case CdlID: |
| 1083 | second_resp_time = 20480; |
| 1084 | break; |
| 1085 | |
| 1086 | case CdlID + CMD_PART2: |
| 1087 | SetResultSize(8); |
| 1088 | cdr.Result[0] = cdr.StatP; |
| 1089 | cdr.Result[1] = 0; |
| 1090 | cdr.Result[2] = 0; |
| 1091 | cdr.Result[3] = 0; |
| 1092 | |
| 1093 | // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed |
| 1094 | if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) { |
| 1095 | cdr.Result[1] = 0xc0; |
| 1096 | } |
| 1097 | else { |
| 1098 | if (stat.Type == 2) |
| 1099 | cdr.Result[1] |= 0x10; |
| 1100 | if (CdromId[0] == '\0') |
| 1101 | cdr.Result[1] |= 0x80; |
| 1102 | } |
| 1103 | cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08; |
| 1104 | |
| 1105 | /* This adds the string "PCSX" in Playstation bios boot screen */ |
| 1106 | memcpy((char *)&cdr.Result[4], "PCSX", 4); |
| 1107 | cdr.Stat = Complete; |
| 1108 | break; |
| 1109 | |
| 1110 | case CdlInit: |
| 1111 | case CdlInit + CMD_WHILE_NOT_READY: |
| 1112 | StopCdda(); |
| 1113 | StopReading(); |
| 1114 | SetPlaySeekRead(cdr.StatP, 0); |
| 1115 | // yes, it really sets STATUS_SHELLOPEN |
| 1116 | cdr.StatP |= STATUS_SHELLOPEN; |
| 1117 | cdr.DriveState = DRIVESTATE_RESCAN_CD; |
| 1118 | CDRLID_INT(20480); |
| 1119 | start_rotating = 1; |
| 1120 | break; |
| 1121 | |
| 1122 | case CdlGetQ: |
| 1123 | case CdlGetQ + CMD_WHILE_NOT_READY: |
| 1124 | break; |
| 1125 | |
| 1126 | case CdlReadToc: |
| 1127 | case CdlReadToc + CMD_WHILE_NOT_READY: |
| 1128 | cdr.LocL[0] = LOCL_INVALID; |
| 1129 | second_resp_time = cdReadTime * 180 / 4; |
| 1130 | start_rotating = 1; |
| 1131 | break; |
| 1132 | |
| 1133 | case CdlReadToc + CMD_PART2: |
| 1134 | case CdlReadToc + CMD_PART2 + CMD_WHILE_NOT_READY: |
| 1135 | cdr.Stat = Complete; |
| 1136 | break; |
| 1137 | |
| 1138 | case CdlReadN: |
| 1139 | case CdlReadS: |
| 1140 | if (cdr.Reading && !cdr.SetlocPending) |
| 1141 | break; |
| 1142 | |
| 1143 | Find_CurTrack(cdr.SetlocPending ? cdr.SetSector : cdr.SetSectorPlay); |
| 1144 | |
| 1145 | if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1) |
| 1146 | // Read* acts as play for cdda tracks in cdda mode |
| 1147 | goto do_CdlPlay; |
| 1148 | |
| 1149 | StopCdda(); |
| 1150 | if (cdr.SetlocPending) { |
| 1151 | seekTime = cdrSeekTime(cdr.SetSector); |
| 1152 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); |
| 1153 | cdr.SetlocPending = 0; |
| 1154 | } |
| 1155 | cdr.Reading = 1; |
| 1156 | cdr.FirstSector = 1; |
| 1157 | |
| 1158 | // Fighting Force 2 - update subq time immediately |
| 1159 | // - fixes new game |
| 1160 | UpdateSubq(cdr.SetSectorPlay); |
| 1161 | cdr.LocL[0] = LOCL_INVALID; |
| 1162 | cdr.SubqForwardSectors = 1; |
| 1163 | |
| 1164 | cycles = (cdr.Mode & MODE_SPEED) ? cdReadTime : cdReadTime * 2; |
| 1165 | cycles += seekTime; |
| 1166 | if (Config.hacks.cdr_read_timing) |
| 1167 | cycles = cdrAlignTimingHack(cycles); |
| 1168 | CDRPLAYREAD_INT(cycles, 1); |
| 1169 | |
| 1170 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK); |
| 1171 | start_rotating = 1; |
| 1172 | break; |
| 1173 | |
| 1174 | case CdlSync: |
| 1175 | default: |
| 1176 | error = ERROR_INVALIDCMD; |
| 1177 | // FALLTHROUGH |
| 1178 | |
| 1179 | set_error: |
| 1180 | CDR_LOG_I("cmd %02x error %02x\n", Cmd, error); |
| 1181 | SetResultSize(2); |
| 1182 | cdr.Result[0] = cdr.StatP | STATUS_ERROR; |
| 1183 | cdr.Result[1] = not_ready ? ERROR_NOTREADY : error; |
| 1184 | cdr.Stat = DiskError; |
| 1185 | break; |
| 1186 | } |
| 1187 | |
| 1188 | if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) { |
| 1189 | cdr.DriveState = DRIVESTATE_STANDBY; |
| 1190 | cdr.StatP |= STATUS_ROTATING; |
| 1191 | } |
| 1192 | |
| 1193 | if (second_resp_time) { |
| 1194 | cdr.CmdInProgress = Cmd | 0x100; |
| 1195 | CDR_INT(second_resp_time); |
| 1196 | } |
| 1197 | else if (cdr.Cmd && cdr.Cmd != (Cmd & 0xff)) { |
| 1198 | cdr.CmdInProgress = cdr.Cmd; |
| 1199 | CDR_LOG_I("cmd %02x came before %02x finished\n", cdr.Cmd, Cmd); |
| 1200 | } |
| 1201 | |
| 1202 | setIrq(Cmd); |
| 1203 | } |
| 1204 | |
| 1205 | #ifdef HAVE_ARMV7 |
| 1206 | #define ssat32_to_16(v) \ |
| 1207 | asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) |
| 1208 | #else |
| 1209 | #define ssat32_to_16(v) do { \ |
| 1210 | if (v < -32768) v = -32768; \ |
| 1211 | else if (v > 32767) v = 32767; \ |
| 1212 | } while (0) |
| 1213 | #endif |
| 1214 | |
| 1215 | static void cdrPrepCdda(s16 *buf, int samples) |
| 1216 | { |
| 1217 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ |
| 1218 | int i; |
| 1219 | for (i = 0; i < samples; i++) { |
| 1220 | buf[i * 2 + 0] = SWAP16(buf[i * 2 + 0]); |
| 1221 | buf[i * 2 + 1] = SWAP16(buf[i * 2 + 1]); |
| 1222 | } |
| 1223 | #endif |
| 1224 | } |
| 1225 | |
| 1226 | static void cdrAttenuate(s16 *buf, int samples, int stereo) |
| 1227 | { |
| 1228 | int i, l, r; |
| 1229 | int ll = cdr.AttenuatorLeftToLeft; |
| 1230 | int lr = cdr.AttenuatorLeftToRight; |
| 1231 | int rl = cdr.AttenuatorRightToLeft; |
| 1232 | int rr = cdr.AttenuatorRightToRight; |
| 1233 | |
| 1234 | if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88) |
| 1235 | return; |
| 1236 | |
| 1237 | if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40) |
| 1238 | return; |
| 1239 | |
| 1240 | if (stereo) { |
| 1241 | for (i = 0; i < samples; i++) { |
| 1242 | l = buf[i * 2]; |
| 1243 | r = buf[i * 2 + 1]; |
| 1244 | l = (l * ll + r * rl) >> 7; |
| 1245 | r = (r * rr + l * lr) >> 7; |
| 1246 | ssat32_to_16(l); |
| 1247 | ssat32_to_16(r); |
| 1248 | buf[i * 2] = l; |
| 1249 | buf[i * 2 + 1] = r; |
| 1250 | } |
| 1251 | } |
| 1252 | else { |
| 1253 | for (i = 0; i < samples; i++) { |
| 1254 | l = buf[i]; |
| 1255 | l = l * (ll + rl) >> 7; |
| 1256 | //r = r * (rr + lr) >> 7; |
| 1257 | ssat32_to_16(l); |
| 1258 | //ssat32_to_16(r); |
| 1259 | buf[i] = l; |
| 1260 | } |
| 1261 | } |
| 1262 | } |
| 1263 | |
| 1264 | static void cdrReadInterruptSetResult(unsigned char result) |
| 1265 | { |
| 1266 | if (cdr.Stat) { |
| 1267 | CDR_LOG_I("%d:%02d:%02d irq miss, cmd=%02x irqstat=%02x\n", |
| 1268 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], |
| 1269 | cdr.CmdInProgress, cdr.Stat); |
| 1270 | cdr.Irq1Pending = result; |
| 1271 | return; |
| 1272 | } |
| 1273 | SetResultSize(1); |
| 1274 | cdr.Result[0] = result; |
| 1275 | cdr.Stat = (result & STATUS_ERROR) ? DiskError : DataReady; |
| 1276 | setIrq(0x1004); |
| 1277 | } |
| 1278 | |
| 1279 | static void cdrUpdateTransferBuf(const u8 *buf) |
| 1280 | { |
| 1281 | if (!buf) |
| 1282 | return; |
| 1283 | memcpy(cdr.Transfer, buf, DATA_SIZE); |
| 1284 | CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]); |
| 1285 | CDR_LOG("cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]); |
| 1286 | if (cdr.FifoOffset < 2048 + 12) |
| 1287 | CDR_LOG("FifoOffset(1) %d/%d\n", cdr.FifoOffset, cdr.FifoSize); |
| 1288 | } |
| 1289 | |
| 1290 | static void cdrReadInterrupt(void) |
| 1291 | { |
| 1292 | u8 *buf = NULL, *hdr; |
| 1293 | u8 subqPos[3]; |
| 1294 | int read_ok; |
| 1295 | |
| 1296 | memcpy(subqPos, cdr.SetSectorPlay, sizeof(subqPos)); |
| 1297 | msfiAdd(subqPos, cdr.SubqForwardSectors); |
| 1298 | UpdateSubq(subqPos); |
| 1299 | if (cdr.SubqForwardSectors < SUBQ_FORWARD_SECTORS) { |
| 1300 | cdr.SubqForwardSectors++; |
| 1301 | CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0); |
| 1302 | return; |
| 1303 | } |
| 1304 | |
| 1305 | // note: CdlGetlocL should work as soon as STATUS_READ is indicated |
| 1306 | SetPlaySeekRead(cdr.StatP, STATUS_READ | STATUS_ROTATING); |
| 1307 | |
| 1308 | read_ok = ReadTrack(cdr.SetSectorPlay); |
| 1309 | if (read_ok) |
| 1310 | buf = CDR_getBuffer(); |
| 1311 | if (buf == NULL) |
| 1312 | read_ok = 0; |
| 1313 | |
| 1314 | if (!read_ok) { |
| 1315 | CDR_LOG_I("cdrReadInterrupt() Log: err\n"); |
| 1316 | cdrReadInterruptSetResult(cdr.StatP | STATUS_ERROR); |
| 1317 | return; |
| 1318 | } |
| 1319 | memcpy(cdr.LocL, buf, 8); |
| 1320 | |
| 1321 | if (!cdr.Irq1Pending) |
| 1322 | cdrUpdateTransferBuf(buf); |
| 1323 | |
| 1324 | if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA |
| 1325 | hdr = buf + 4; |
| 1326 | // Firemen 2: Multi-XA files - briefings, cutscenes |
| 1327 | if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) { |
| 1328 | cdr.File = hdr[0]; |
| 1329 | cdr.Channel = hdr[1]; |
| 1330 | } |
| 1331 | |
| 1332 | /* Gameblabla |
| 1333 | * Skips playing on channel 255. |
| 1334 | * Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2) |
| 1335 | * TODO : Check if this is the proper behaviour. |
| 1336 | * */ |
| 1337 | if ((hdr[2] & 0x4) && hdr[0] == cdr.File && hdr[1] == cdr.Channel && cdr.Channel != 255) { |
| 1338 | int ret = xa_decode_sector(&cdr.Xa, buf + 4, cdr.FirstSector); |
| 1339 | if (!ret) { |
| 1340 | cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo); |
| 1341 | SPU_playADPCMchannel(&cdr.Xa, psxRegs.cycle, cdr.FirstSector); |
| 1342 | cdr.FirstSector = 0; |
| 1343 | } |
| 1344 | else cdr.FirstSector = -1; |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | /* |
| 1349 | Croc 2: $40 - only FORM1 (*) |
| 1350 | Judge Dredd: $C8 - only FORM1 (*) |
| 1351 | Sim Theme Park - no adpcm at all (zero) |
| 1352 | */ |
| 1353 | |
| 1354 | if (!(cdr.Mode & MODE_STRSND) || !(buf[4+2] & 0x4)) |
| 1355 | cdrReadInterruptSetResult(cdr.StatP); |
| 1356 | |
| 1357 | msfiAdd(cdr.SetSectorPlay, 1); |
| 1358 | |
| 1359 | CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0); |
| 1360 | } |
| 1361 | |
| 1362 | /* |
| 1363 | cdrRead0: |
| 1364 | bit 0,1 - mode |
| 1365 | bit 2 - unknown |
| 1366 | bit 3 - unknown |
| 1367 | bit 4 - unknown |
| 1368 | bit 5 - 1 result ready |
| 1369 | bit 6 - 1 dma ready |
| 1370 | bit 7 - 1 command being processed |
| 1371 | */ |
| 1372 | |
| 1373 | unsigned char cdrRead0(void) { |
| 1374 | if (cdr.ResultReady) |
| 1375 | cdr.Ctrl |= 0x20; |
| 1376 | else |
| 1377 | cdr.Ctrl &= ~0x20; |
| 1378 | |
| 1379 | cdr.Ctrl |= 0x40; // data fifo not empty |
| 1380 | |
| 1381 | // What means the 0x10 and the 0x08 bits? I only saw it used by the bios |
| 1382 | cdr.Ctrl |= 0x18; |
| 1383 | |
| 1384 | CDR_LOG_IO("cdr r0.sta: %02x\n", cdr.Ctrl); |
| 1385 | |
| 1386 | return psxHu8(0x1800) = cdr.Ctrl; |
| 1387 | } |
| 1388 | |
| 1389 | void cdrWrite0(unsigned char rt) { |
| 1390 | CDR_LOG_IO("cdr w0.idx: %02x\n", rt); |
| 1391 | |
| 1392 | cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3); |
| 1393 | } |
| 1394 | |
| 1395 | unsigned char cdrRead1(void) { |
| 1396 | if ((cdr.ResultP & 0xf) < cdr.ResultC) |
| 1397 | psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf]; |
| 1398 | else |
| 1399 | psxHu8(0x1801) = 0; |
| 1400 | cdr.ResultP++; |
| 1401 | if (cdr.ResultP == cdr.ResultC) |
| 1402 | cdr.ResultReady = 0; |
| 1403 | |
| 1404 | CDR_LOG_IO("cdr r1.rsp: %02x #%u\n", psxHu8(0x1801), cdr.ResultP - 1); |
| 1405 | |
| 1406 | return psxHu8(0x1801); |
| 1407 | } |
| 1408 | |
| 1409 | void cdrWrite1(unsigned char rt) { |
| 1410 | const char *rnames[] = { "cmd", "smd", "smc", "arr" }; (void)rnames; |
| 1411 | CDR_LOG_IO("cdr w1.%s: %02x\n", rnames[cdr.Ctrl & 3], rt); |
| 1412 | |
| 1413 | switch (cdr.Ctrl & 3) { |
| 1414 | case 0: |
| 1415 | break; |
| 1416 | case 3: |
| 1417 | cdr.AttenuatorRightToRightT = rt; |
| 1418 | return; |
| 1419 | default: |
| 1420 | return; |
| 1421 | } |
| 1422 | |
| 1423 | #ifdef CDR_LOG_CMD_IRQ |
| 1424 | CDR_LOG_I("CD1 write: %x (%s)", rt, CmdName[rt]); |
| 1425 | if (cdr.ParamC) { |
| 1426 | int i; |
| 1427 | SysPrintf(" Param[%d] = {", cdr.ParamC); |
| 1428 | for (i = 0; i < cdr.ParamC; i++) |
| 1429 | SysPrintf(" %x,", cdr.Param[i]); |
| 1430 | SysPrintf("}\n"); |
| 1431 | } else { |
| 1432 | SysPrintf("\n"); |
| 1433 | } |
| 1434 | #endif |
| 1435 | |
| 1436 | cdr.ResultReady = 0; |
| 1437 | cdr.Ctrl |= 0x80; |
| 1438 | |
| 1439 | if (!cdr.CmdInProgress) { |
| 1440 | cdr.CmdInProgress = rt; |
| 1441 | // should be something like 12k + controller delays |
| 1442 | CDR_INT(5000); |
| 1443 | } |
| 1444 | else { |
| 1445 | CDR_LOG_I("cmd while busy: %02x, prev %02x, busy %02x\n", |
| 1446 | rt, cdr.Cmd, cdr.CmdInProgress); |
| 1447 | if (cdr.CmdInProgress < 0x100) // no pending 2nd response |
| 1448 | cdr.CmdInProgress = rt; |
| 1449 | } |
| 1450 | |
| 1451 | cdr.Cmd = rt; |
| 1452 | } |
| 1453 | |
| 1454 | unsigned char cdrRead2(void) { |
| 1455 | unsigned char ret = cdr.Transfer[0x920]; |
| 1456 | |
| 1457 | if (cdr.FifoOffset < cdr.FifoSize) |
| 1458 | ret = cdr.Transfer[cdr.FifoOffset++]; |
| 1459 | else |
| 1460 | CDR_LOG_I("read empty fifo (%d)\n", cdr.FifoSize); |
| 1461 | |
| 1462 | CDR_LOG_IO("cdr r2.dat: %02x\n", ret); |
| 1463 | return ret; |
| 1464 | } |
| 1465 | |
| 1466 | void cdrWrite2(unsigned char rt) { |
| 1467 | const char *rnames[] = { "prm", "ien", "all", "arl" }; (void)rnames; |
| 1468 | CDR_LOG_IO("cdr w2.%s: %02x\n", rnames[cdr.Ctrl & 3], rt); |
| 1469 | |
| 1470 | switch (cdr.Ctrl & 3) { |
| 1471 | case 0: |
| 1472 | if (cdr.ParamC < 8) // FIXME: size and wrapping |
| 1473 | cdr.Param[cdr.ParamC++] = rt; |
| 1474 | return; |
| 1475 | case 1: |
| 1476 | cdr.Reg2 = rt; |
| 1477 | setIrq(0x1005); |
| 1478 | return; |
| 1479 | case 2: |
| 1480 | cdr.AttenuatorLeftToLeftT = rt; |
| 1481 | return; |
| 1482 | case 3: |
| 1483 | cdr.AttenuatorRightToLeftT = rt; |
| 1484 | return; |
| 1485 | } |
| 1486 | } |
| 1487 | |
| 1488 | unsigned char cdrRead3(void) { |
| 1489 | if (cdr.Ctrl & 0x1) |
| 1490 | psxHu8(0x1803) = cdr.Stat | 0xE0; |
| 1491 | else |
| 1492 | psxHu8(0x1803) = cdr.Reg2 | 0xE0; |
| 1493 | |
| 1494 | CDR_LOG_IO("cdr r3.%s: %02x\n", (cdr.Ctrl & 1) ? "ifl" : "ien", psxHu8(0x1803)); |
| 1495 | return psxHu8(0x1803); |
| 1496 | } |
| 1497 | |
| 1498 | void cdrWrite3(unsigned char rt) { |
| 1499 | const char *rnames[] = { "req", "ifl", "alr", "ava" }; (void)rnames; |
| 1500 | CDR_LOG_IO("cdr w3.%s: %02x\n", rnames[cdr.Ctrl & 3], rt); |
| 1501 | |
| 1502 | switch (cdr.Ctrl & 3) { |
| 1503 | case 0: |
| 1504 | break; // transfer |
| 1505 | case 1: |
| 1506 | if (cdr.Stat & rt) { |
| 1507 | u32 nextCycle = psxRegs.intCycle[PSXINT_CDR].sCycle |
| 1508 | + psxRegs.intCycle[PSXINT_CDR].cycle; |
| 1509 | int pending = psxRegs.interrupt & (1 << PSXINT_CDR); |
| 1510 | #ifdef CDR_LOG_CMD_IRQ |
| 1511 | CDR_LOG_I("ack %02x (w=%02x p=%d,%x,%x,%d)\n", cdr.Stat & rt, rt, |
| 1512 | !!pending, cdr.CmdInProgress, |
| 1513 | cdr.Irq1Pending, nextCycle - psxRegs.cycle); |
| 1514 | #endif |
| 1515 | // note: Croc, Shadow Tower (more) vs Discworld Noir (<993) |
| 1516 | if (!pending && (cdr.CmdInProgress || cdr.Irq1Pending)) |
| 1517 | { |
| 1518 | s32 c = 2048 - (psxRegs.cycle - nextCycle); |
| 1519 | c = MAX_VALUE(c, 512); |
| 1520 | CDR_INT(c); |
| 1521 | } |
| 1522 | } |
| 1523 | cdr.Stat &= ~rt; |
| 1524 | |
| 1525 | if (rt & 0x40) |
| 1526 | cdr.ParamC = 0; |
| 1527 | return; |
| 1528 | case 2: |
| 1529 | cdr.AttenuatorLeftToRightT = rt; |
| 1530 | return; |
| 1531 | case 3: |
| 1532 | if (rt & 0x20) { |
| 1533 | memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4); |
| 1534 | CDR_LOG("CD-XA Volume: %02x %02x | %02x %02x\n", |
| 1535 | cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight, |
| 1536 | cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight); |
| 1537 | } |
| 1538 | return; |
| 1539 | } |
| 1540 | |
| 1541 | // test: Viewpoint |
| 1542 | if ((rt & 0x80) && cdr.FifoOffset < cdr.FifoSize) { |
| 1543 | CDR_LOG("cdrom: FifoOffset(2) %d/%d\n", cdr.FifoOffset, cdr.FifoSize); |
| 1544 | } |
| 1545 | else if (rt & 0x80) { |
| 1546 | switch (cdr.Mode & (MODE_SIZE_2328|MODE_SIZE_2340)) { |
| 1547 | case MODE_SIZE_2328: |
| 1548 | case 0x00: |
| 1549 | cdr.FifoOffset = 12; |
| 1550 | cdr.FifoSize = 2048 + 12; |
| 1551 | break; |
| 1552 | |
| 1553 | case MODE_SIZE_2340: |
| 1554 | default: |
| 1555 | cdr.FifoOffset = 0; |
| 1556 | cdr.FifoSize = 2340; |
| 1557 | break; |
| 1558 | } |
| 1559 | } |
| 1560 | else if (!(rt & 0xc0)) |
| 1561 | cdr.FifoOffset = DATA_SIZE; // fifo empty |
| 1562 | } |
| 1563 | |
| 1564 | void psxDma3(u32 madr, u32 bcr, u32 chcr) { |
| 1565 | u32 cdsize; |
| 1566 | int size; |
| 1567 | u8 *ptr; |
| 1568 | |
| 1569 | #if 0 |
| 1570 | CDR_LOG_I("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x", chcr, madr, bcr); |
| 1571 | if (cdr.FifoOffset == 0) { |
| 1572 | ptr = cdr.Transfer; |
| 1573 | SysPrintf(" %02x:%02x:%02x", ptr[0], ptr[1], ptr[2]); |
| 1574 | } |
| 1575 | SysPrintf("\n"); |
| 1576 | #endif |
| 1577 | |
| 1578 | switch (chcr & 0x71000000) { |
| 1579 | case 0x11000000: |
| 1580 | ptr = (u8 *)PSXM(madr); |
| 1581 | if (ptr == INVALID_PTR) { |
| 1582 | CDR_LOG_I("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n"); |
| 1583 | break; |
| 1584 | } |
| 1585 | |
| 1586 | cdsize = (((bcr - 1) & 0xffff) + 1) * 4; |
| 1587 | |
| 1588 | /* |
| 1589 | GS CDX: Enhancement CD crash |
| 1590 | - Setloc 0:0:0 |
| 1591 | - CdlPlay |
| 1592 | - Spams DMA3 and gets buffer overrun |
| 1593 | */ |
| 1594 | size = DATA_SIZE - cdr.FifoOffset; |
| 1595 | if (size > cdsize) |
| 1596 | size = cdsize; |
| 1597 | if (size > 0) |
| 1598 | { |
| 1599 | memcpy(ptr, cdr.Transfer + cdr.FifoOffset, size); |
| 1600 | cdr.FifoOffset += size; |
| 1601 | } |
| 1602 | if (size < cdsize) { |
| 1603 | CDR_LOG_I("cdrom: dma3 %d/%d\n", size, cdsize); |
| 1604 | memset(ptr + size, cdr.Transfer[0x920], cdsize - size); |
| 1605 | } |
| 1606 | psxCpu->Clear(madr, cdsize / 4); |
| 1607 | |
| 1608 | CDRDMA_INT((cdsize/4) * 24); |
| 1609 | |
| 1610 | HW_DMA3_CHCR &= SWAPu32(~0x10000000); |
| 1611 | if (chcr & 0x100) { |
| 1612 | HW_DMA3_MADR = SWAPu32(madr + cdsize); |
| 1613 | HW_DMA3_BCR &= SWAPu32(0xffff0000); |
| 1614 | } |
| 1615 | else { |
| 1616 | // halted |
| 1617 | psxRegs.cycle += (cdsize/4) * 24 - 20; |
| 1618 | } |
| 1619 | return; |
| 1620 | |
| 1621 | default: |
| 1622 | CDR_LOG_I("psxDma3() Log: Unknown cddma %x\n", chcr); |
| 1623 | break; |
| 1624 | } |
| 1625 | |
| 1626 | HW_DMA3_CHCR &= SWAP32(~0x01000000); |
| 1627 | DMA_INTERRUPT(3); |
| 1628 | } |
| 1629 | |
| 1630 | void cdrDmaInterrupt(void) |
| 1631 | { |
| 1632 | if (HW_DMA3_CHCR & SWAP32(0x01000000)) |
| 1633 | { |
| 1634 | HW_DMA3_CHCR &= SWAP32(~0x01000000); |
| 1635 | DMA_INTERRUPT(3); |
| 1636 | } |
| 1637 | } |
| 1638 | |
| 1639 | static void getCdInfo(void) |
| 1640 | { |
| 1641 | u8 tmp; |
| 1642 | |
| 1643 | CDR_getTN(cdr.ResultTN); |
| 1644 | CDR_getTD(0, cdr.SetSectorEnd); |
| 1645 | tmp = cdr.SetSectorEnd[0]; |
| 1646 | cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2]; |
| 1647 | cdr.SetSectorEnd[2] = tmp; |
| 1648 | } |
| 1649 | |
| 1650 | void cdrReset() { |
| 1651 | memset(&cdr, 0, sizeof(cdr)); |
| 1652 | cdr.CurTrack = 1; |
| 1653 | cdr.File = 1; |
| 1654 | cdr.Channel = 1; |
| 1655 | cdr.Reg2 = 0x1f; |
| 1656 | cdr.Stat = NoIntr; |
| 1657 | cdr.FifoOffset = DATA_SIZE; // fifo empty |
| 1658 | if (CdromId[0] == '\0') { |
| 1659 | cdr.DriveState = DRIVESTATE_STOPPED; |
| 1660 | cdr.StatP = 0; |
| 1661 | } |
| 1662 | else { |
| 1663 | cdr.DriveState = DRIVESTATE_STANDBY; |
| 1664 | cdr.StatP = STATUS_ROTATING; |
| 1665 | } |
| 1666 | |
| 1667 | // BIOS player - default values |
| 1668 | cdr.AttenuatorLeftToLeft = 0x80; |
| 1669 | cdr.AttenuatorLeftToRight = 0x00; |
| 1670 | cdr.AttenuatorRightToLeft = 0x00; |
| 1671 | cdr.AttenuatorRightToRight = 0x80; |
| 1672 | |
| 1673 | getCdInfo(); |
| 1674 | } |
| 1675 | |
| 1676 | int cdrFreeze(void *f, int Mode) { |
| 1677 | u32 tmp; |
| 1678 | u8 tmpp[3]; |
| 1679 | |
| 1680 | if (Mode == 0 && !Config.Cdda) |
| 1681 | CDR_stop(); |
| 1682 | |
| 1683 | cdr.freeze_ver = 0x63647202; |
| 1684 | gzfreeze(&cdr, sizeof(cdr)); |
| 1685 | |
| 1686 | if (Mode == 1) { |
| 1687 | cdr.ParamP = cdr.ParamC; |
| 1688 | tmp = cdr.FifoOffset; |
| 1689 | } |
| 1690 | |
| 1691 | gzfreeze(&tmp, sizeof(tmp)); |
| 1692 | |
| 1693 | if (Mode == 0) { |
| 1694 | getCdInfo(); |
| 1695 | |
| 1696 | cdr.FifoOffset = tmp < DATA_SIZE ? tmp : DATA_SIZE; |
| 1697 | cdr.FifoSize = (cdr.Mode & MODE_SIZE_2340) ? 2340 : 2048 + 12; |
| 1698 | if (cdr.SubqForwardSectors > SUBQ_FORWARD_SECTORS) |
| 1699 | cdr.SubqForwardSectors = SUBQ_FORWARD_SECTORS; |
| 1700 | |
| 1701 | // read right sub data |
| 1702 | tmpp[0] = btoi(cdr.Prev[0]); |
| 1703 | tmpp[1] = btoi(cdr.Prev[1]); |
| 1704 | tmpp[2] = btoi(cdr.Prev[2]); |
| 1705 | cdr.Prev[0]++; |
| 1706 | ReadTrack(tmpp); |
| 1707 | |
| 1708 | if (cdr.Play) { |
| 1709 | if (cdr.freeze_ver < 0x63647202) |
| 1710 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 3); |
| 1711 | |
| 1712 | Find_CurTrack(cdr.SetSectorPlay); |
| 1713 | if (!Config.Cdda) |
| 1714 | CDR_play(cdr.SetSectorPlay); |
| 1715 | if (psxRegs.interrupt & (1 << PSXINT_CDRPLAY_OLD)) |
| 1716 | CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 1); |
| 1717 | } |
| 1718 | |
| 1719 | if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) { |
| 1720 | // old versions did not latch Reg2, have to fixup.. |
| 1721 | if (cdr.Reg2 == 0) { |
| 1722 | SysPrintf("cdrom: fixing up old savestate\n"); |
| 1723 | cdr.Reg2 = 7; |
| 1724 | } |
| 1725 | // also did not save Attenuator.. |
| 1726 | if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight |
| 1727 | | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0) |
| 1728 | { |
| 1729 | cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80; |
| 1730 | } |
| 1731 | } |
| 1732 | } |
| 1733 | |
| 1734 | return 0; |
| 1735 | } |
| 1736 | |
| 1737 | void LidInterrupt(void) { |
| 1738 | getCdInfo(); |
| 1739 | cdrLidSeekInterrupt(); |
| 1740 | } |