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ef79bbde P |
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., * | |
22bbabf6 | 17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * |
ef79bbde P |
18 | ***************************************************************************/ |
19 | ||
22bbabf6 | 20 | /* |
ef79bbde P |
21 | * Handles all CD-ROM registers and functions. |
22 | */ | |
23 | ||
0eacae49 | 24 | #include <assert.h> |
ef79bbde | 25 | #include "cdrom.h" |
584fc319 | 26 | #include "misc.h" |
ef79bbde | 27 | #include "ppf.h" |
9f8b032d | 28 | #include "psxdma.h" |
c6a249e3 | 29 | #include "psxevents.h" |
8f2bb0cb | 30 | #include "arm_features.h" |
ef79bbde | 31 | |
8b380e97 | 32 | /* logging */ |
33 | #if 0 | |
34 | #define CDR_LOG SysPrintf | |
35 | #else | |
36 | #define CDR_LOG(...) | |
37 | #endif | |
38 | #if 0 | |
39 | #define CDR_LOG_I SysPrintf | |
40 | #else | |
4d74a45a | 41 | #define CDR_LOG_I(fmt, ...) \ |
42 | log_unhandled("%u cdrom: " fmt, psxRegs.cycle, ##__VA_ARGS__) | |
8b380e97 | 43 | #endif |
44 | #if 0 | |
45 | #define CDR_LOG_IO SysPrintf | |
46 | #else | |
47 | #define CDR_LOG_IO(...) | |
48 | #endif | |
49 | //#define CDR_LOG_CMD_IRQ | |
50 | ||
e7acd858 | 51 | static struct { |
5c96969c | 52 | // unused members maintain savesate compatibility |
53 | unsigned char unused0; | |
54 | unsigned char unused1; | |
e7acd858 | 55 | unsigned char Reg2; |
5c96969c | 56 | unsigned char unused2; |
e7acd858 | 57 | unsigned char Ctrl; |
58 | unsigned char Stat; | |
59 | ||
60 | unsigned char StatP; | |
61 | ||
62 | unsigned char Transfer[DATA_SIZE]; | |
63 | struct { | |
64 | unsigned char Track; | |
65 | unsigned char Index; | |
66 | unsigned char Relative[3]; | |
67 | unsigned char Absolute[3]; | |
68 | } subq; | |
69 | unsigned char TrackChanged; | |
bbcd0c29 | 70 | unsigned char ReportDelay; |
b524c671 | 71 | unsigned char unused3; |
72 | unsigned short sectorsRead; | |
e7acd858 | 73 | unsigned int freeze_ver; |
74 | ||
75 | unsigned char Prev[4]; | |
76 | unsigned char Param[8]; | |
77 | unsigned char Result[16]; | |
78 | ||
79 | unsigned char ParamC; | |
80 | unsigned char ParamP; | |
81 | unsigned char ResultC; | |
82 | unsigned char ResultP; | |
83 | unsigned char ResultReady; | |
84 | unsigned char Cmd; | |
0eacae49 | 85 | unsigned char SubqForwardSectors; |
e7acd858 | 86 | unsigned char SetlocPending; |
87 | u32 Reading; | |
88 | ||
89 | unsigned char ResultTN[6]; | |
90 | unsigned char ResultTD[4]; | |
91 | unsigned char SetSectorPlay[4]; | |
92 | unsigned char SetSectorEnd[4]; | |
93 | unsigned char SetSector[4]; | |
94 | unsigned char Track; | |
95 | boolean Play, Muted; | |
96 | int CurTrack; | |
78ce9be9 | 97 | unsigned char Mode; |
98 | unsigned char FileChannelSelected; | |
99 | unsigned char CurFile, CurChannel; | |
100 | int FilterFile, FilterChannel; | |
3c2583a6 | 101 | unsigned char LocL[8]; |
78ce9be9 | 102 | int unused4; |
e7acd858 | 103 | |
104 | xa_decode_t Xa; | |
105 | ||
e411faef | 106 | u16 FifoOffset; |
107 | u16 FifoSize; | |
e7acd858 | 108 | |
5c96969c | 109 | u16 CmdInProgress; |
f55c59b7 | 110 | u8 Irq1Pending; |
78ce9be9 | 111 | u8 AdpcmActive; |
3b8815fb | 112 | u32 LastReadSeekCycles; |
e7acd858 | 113 | |
5c96969c | 114 | u8 unused7; |
e7acd858 | 115 | |
116 | u8 DriveState; | |
117 | u8 FastForward; | |
118 | u8 FastBackward; | |
14c8b56a | 119 | u8 errorRetryhack; |
e7acd858 | 120 | |
121 | u8 AttenuatorLeftToLeft, AttenuatorLeftToRight; | |
122 | u8 AttenuatorRightToRight, AttenuatorRightToLeft; | |
123 | u8 AttenuatorLeftToLeftT, AttenuatorLeftToRightT; | |
124 | u8 AttenuatorRightToRightT, AttenuatorRightToLeftT; | |
125 | } cdr; | |
66425c25 | 126 | static s16 read_buf[CD_FRAMESIZE_RAW/2]; |
ef79bbde P |
127 | |
128 | /* CD-ROM magic numbers */ | |
2e88c317 | 129 | #define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */ |
ef79bbde P |
130 | #define CdlNop 1 |
131 | #define CdlSetloc 2 | |
132 | #define CdlPlay 3 | |
133 | #define CdlForward 4 | |
134 | #define CdlBackward 5 | |
135 | #define CdlReadN 6 | |
136 | #define CdlStandby 7 | |
137 | #define CdlStop 8 | |
138 | #define CdlPause 9 | |
8399ca33 | 139 | #define CdlReset 10 |
ef79bbde P |
140 | #define CdlMute 11 |
141 | #define CdlDemute 12 | |
142 | #define CdlSetfilter 13 | |
143 | #define CdlSetmode 14 | |
95465b97 | 144 | #define CdlGetparam 15 |
ef79bbde P |
145 | #define CdlGetlocL 16 |
146 | #define CdlGetlocP 17 | |
147 | #define CdlReadT 18 | |
148 | #define CdlGetTN 19 | |
149 | #define CdlGetTD 20 | |
150 | #define CdlSeekL 21 | |
151 | #define CdlSeekP 22 | |
152 | #define CdlSetclock 23 | |
153 | #define CdlGetclock 24 | |
154 | #define CdlTest 25 | |
155 | #define CdlID 26 | |
156 | #define CdlReadS 27 | |
8399ca33 | 157 | #define CdlInit 28 |
e4268a49 | 158 | #define CdlGetQ 29 |
ef79bbde P |
159 | #define CdlReadToc 30 |
160 | ||
e7acd858 | 161 | #ifdef CDR_LOG_CMD_IRQ |
162 | static const char * const CmdName[0x100] = { | |
ef79bbde P |
163 | "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay", |
164 | "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby", | |
2e88c317 | 165 | "CdlStop", "CdlPause", "CdlReset", "CdlMute", |
95465b97 | 166 | "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetparam", |
ef79bbde P |
167 | "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN", |
168 | "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock", | |
169 | "CdlGetclock", "CdlTest", "CdlID", "CdlReadS", | |
2e88c317 | 170 | "CdlInit", NULL, "CDlReadToc", NULL |
ef79bbde | 171 | }; |
e7acd858 | 172 | #endif |
ef79bbde P |
173 | |
174 | unsigned char Test04[] = { 0 }; | |
175 | unsigned char Test05[] = { 0 }; | |
176 | unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 }; | |
177 | unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F }; | |
178 | unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 }; | |
179 | ||
9f8b032d | 180 | // cdr.Stat: |
181 | #define NoIntr 0 | |
182 | #define DataReady 1 | |
183 | #define Complete 2 | |
184 | #define Acknowledge 3 | |
185 | #define DataEnd 4 | |
186 | #define DiskError 5 | |
187 | ||
188 | /* Modes flags */ | |
189 | #define MODE_SPEED (1<<7) // 0x80 | |
190 | #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off | |
191 | #define MODE_SIZE_2340 (1<<5) // 0x20 | |
192 | #define MODE_SIZE_2328 (1<<4) // 0x10 | |
cd0c9f5b | 193 | #define MODE_SIZE_2048 (0<<4) // 0x00 |
9f8b032d | 194 | #define MODE_SF (1<<3) // 0x08 channel on/off |
195 | #define MODE_REPORT (1<<2) // 0x04 | |
196 | #define MODE_AUTOPAUSE (1<<1) // 0x02 | |
197 | #define MODE_CDDA (1<<0) // 0x01 | |
198 | ||
199 | /* Status flags */ | |
200 | #define STATUS_PLAY (1<<7) // 0x80 | |
201 | #define STATUS_SEEK (1<<6) // 0x40 | |
202 | #define STATUS_READ (1<<5) // 0x20 | |
203 | #define STATUS_SHELLOPEN (1<<4) // 0x10 | |
204 | #define STATUS_UNKNOWN3 (1<<3) // 0x08 | |
1b092fd9 | 205 | #define STATUS_SEEKERROR (1<<2) // 0x04 |
9f8b032d | 206 | #define STATUS_ROTATING (1<<1) // 0x02 |
207 | #define STATUS_ERROR (1<<0) // 0x01 | |
208 | ||
e4268a49 | 209 | /* Errors */ |
003cfc63 | 210 | #define ERROR_NOTREADY (1<<7) // 0x80 |
e4268a49 | 211 | #define ERROR_INVALIDCMD (1<<6) // 0x40 |
212 | #define ERROR_INVALIDARG (1<<5) // 0x20 | |
1b092fd9 | 213 | #define ERROR_SHELLOPEN (1<<3) // 0x08 |
9f8b032d | 214 | |
ef79bbde P |
215 | // 1x = 75 sectors per second |
216 | // PSXCLK = 1 sec in the ps | |
217 | // so (PSXCLK / 75) = cdr read time (linuzappz) | |
218 | #define cdReadTime (PSXCLK / 75) | |
219 | ||
3c2583a6 | 220 | #define LOCL_INVALID 0xff |
0eacae49 | 221 | #define SUBQ_FORWARD_SECTORS 2u |
3c2583a6 | 222 | |
80f91a20 | 223 | enum drive_state { |
05e5c298 | 224 | DRIVESTATE_STANDBY = 0, // pause, play, read |
80f91a20 | 225 | DRIVESTATE_LID_OPEN, |
226 | DRIVESTATE_RESCAN_CD, | |
227 | DRIVESTATE_PREPARE_CD, | |
e4268a49 | 228 | DRIVESTATE_STOPPED, |
80f91a20 | 229 | }; |
230 | ||
ef79bbde | 231 | static struct CdrStat stat; |
ef79bbde | 232 | |
fffad32e | 233 | static unsigned int msf2sec(const u8 *msf) { |
9f8b032d | 234 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; |
235 | } | |
236 | ||
fffad32e | 237 | // for that weird psemu API.. |
238 | static unsigned int fsm2sec(const u8 *msf) { | |
239 | return ((msf[2] * 60 + msf[1]) * 75) + msf[0]; | |
240 | } | |
241 | ||
305c8c93 | 242 | static void sec2msf(unsigned int s, u8 *msf) { |
9f8b032d | 243 | msf[0] = s / 75 / 60; |
244 | s = s - msf[0] * 75 * 60; | |
245 | msf[1] = s / 75; | |
246 | s = s - msf[1] * 75; | |
247 | msf[2] = s; | |
248 | } | |
249 | ||
c4e62180 | 250 | // cdrPlayReadInterrupt |
251 | #define CDRPLAYREAD_INT(eCycle, isFirst) { \ | |
9a1338bc | 252 | u32 e_ = eCycle; \ |
d28b54b1 | 253 | psxRegs.interrupt |= (1 << PSXINT_CDREAD); \ |
9a1338bc | 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_; \ | |
c6a249e3 | 259 | set_event_raw_abs(PSXINT_CDREAD, psxRegs.intCycle[PSXINT_CDREAD].sCycle + e_); \ |
9f8b032d | 260 | } |
261 | ||
ef79bbde | 262 | #define StopReading() { \ |
05e5c298 | 263 | cdr.Reading = 0; \ |
264 | psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \ | |
ef79bbde P |
265 | } |
266 | ||
267 | #define StopCdda() { \ | |
05e5c298 | 268 | if (cdr.Play && !Config.Cdda) CDR_stop(); \ |
269 | cdr.Play = FALSE; \ | |
270 | cdr.FastForward = 0; \ | |
271 | cdr.FastBackward = 0; \ | |
272 | } | |
273 | ||
274 | #define SetPlaySeekRead(x, f) { \ | |
275 | x &= ~(STATUS_PLAY | STATUS_SEEK | STATUS_READ); \ | |
276 | x |= f; \ | |
ef79bbde P |
277 | } |
278 | ||
279 | #define SetResultSize(size) { \ | |
94c118c3 | 280 | cdr.ResultP = 0; \ |
ef79bbde P |
281 | cdr.ResultC = size; \ |
282 | cdr.ResultReady = 1; \ | |
283 | } | |
284 | ||
e7acd858 | 285 | static void setIrq(int log_cmd) |
94c118c3 | 286 | { |
287 | if (cdr.Stat & cdr.Reg2) | |
288 | psxHu32ref(0x1070) |= SWAP32((u32)0x4); | |
e7acd858 | 289 | |
290 | #ifdef CDR_LOG_CMD_IRQ | |
5c96969c | 291 | if (cdr.Stat) |
e7acd858 | 292 | { |
293 | int i; | |
4d74a45a | 294 | CDR_LOG_I("CDR IRQ=%d cmd %02x stat %02x: ", |
295 | !!(cdr.Stat & cdr.Reg2), log_cmd, cdr.Stat); | |
e7acd858 | 296 | for (i = 0; i < cdr.ResultC; i++) |
297 | SysPrintf("%02x ", cdr.Result[i]); | |
298 | SysPrintf("\n"); | |
299 | } | |
300 | #endif | |
94c118c3 | 301 | } |
9f8b032d | 302 | |
80f91a20 | 303 | // timing used in this function was taken from tests on real hardware |
304 | // (yes it's slow, but you probably don't want to modify it) | |
28eea6ac | 305 | void cdrLidSeekInterrupt(void) |
9f8b032d | 306 | { |
4d74a45a | 307 | CDR_LOG_I("%s cdr.DriveState=%d\n", __func__, cdr.DriveState); |
b4638ad9 | 308 | |
80f91a20 | 309 | switch (cdr.DriveState) { |
310 | default: | |
311 | case DRIVESTATE_STANDBY: | |
05e5c298 | 312 | StopCdda(); |
1b092fd9 | 313 | //StopReading(); |
05e5c298 | 314 | SetPlaySeekRead(cdr.StatP, 0); |
9f8b032d | 315 | |
80f91a20 | 316 | if (CDR_getStatus(&stat) == -1) |
317 | return; | |
9f8b032d | 318 | |
80f91a20 | 319 | if (stat.Status & STATUS_SHELLOPEN) |
9f8b032d | 320 | { |
48e85d1b | 321 | memset(cdr.Prev, 0xff, sizeof(cdr.Prev)); |
80f91a20 | 322 | cdr.DriveState = DRIVESTATE_LID_OPEN; |
c6a249e3 | 323 | set_event(PSXINT_CDRLID, 0x800); |
80f91a20 | 324 | } |
325 | break; | |
9f8b032d | 326 | |
80f91a20 | 327 | case DRIVESTATE_LID_OPEN: |
328 | if (CDR_getStatus(&stat) == -1) | |
329 | stat.Status &= ~STATUS_SHELLOPEN; | |
9f8b032d | 330 | |
80f91a20 | 331 | // 02, 12, 10 |
332 | if (!(cdr.StatP & STATUS_SHELLOPEN)) { | |
1b092fd9 | 333 | SetPlaySeekRead(cdr.StatP, 0); |
80f91a20 | 334 | cdr.StatP |= STATUS_SHELLOPEN; |
9f8b032d | 335 | |
1b092fd9 | 336 | // IIRC this sometimes doesn't happen on real hw |
337 | // (when lots of commands are sent?) | |
338 | if (cdr.Reading) { | |
339 | StopReading(); | |
340 | SetResultSize(2); | |
341 | cdr.Result[0] = cdr.StatP | STATUS_SEEKERROR; | |
342 | cdr.Result[1] = ERROR_SHELLOPEN; | |
343 | cdr.Stat = DiskError; | |
344 | setIrq(0x1006); | |
345 | } | |
346 | if (cdr.CmdInProgress) { | |
347 | psxRegs.interrupt &= ~(1 << PSXINT_CDR); | |
348 | cdr.CmdInProgress = 0; | |
349 | SetResultSize(2); | |
350 | cdr.Result[0] = cdr.StatP | STATUS_ERROR; | |
351 | cdr.Result[1] = ERROR_NOTREADY; | |
352 | cdr.Stat = DiskError; | |
353 | setIrq(0x1007); | |
354 | } | |
9f8b032d | 355 | |
c6a249e3 | 356 | set_event(PSXINT_CDRLID, cdReadTime * 30); |
80f91a20 | 357 | break; |
9f8b032d | 358 | } |
80f91a20 | 359 | else if (cdr.StatP & STATUS_ROTATING) { |
360 | cdr.StatP &= ~STATUS_ROTATING; | |
361 | } | |
362 | else if (!(stat.Status & STATUS_SHELLOPEN)) { | |
363 | // closed now | |
364 | CheckCdrom(); | |
9f8b032d | 365 | |
80f91a20 | 366 | // cdr.StatP STATUS_SHELLOPEN is "sticky" |
367 | // and is only cleared by CdlNop | |
9f8b032d | 368 | |
80f91a20 | 369 | cdr.DriveState = DRIVESTATE_RESCAN_CD; |
c6a249e3 | 370 | set_event(PSXINT_CDRLID, cdReadTime * 105); |
80f91a20 | 371 | break; |
372 | } | |
9f8b032d | 373 | |
80f91a20 | 374 | // recheck for close |
c6a249e3 | 375 | set_event(PSXINT_CDRLID, cdReadTime * 3); |
80f91a20 | 376 | break; |
9f8b032d | 377 | |
80f91a20 | 378 | case DRIVESTATE_RESCAN_CD: |
379 | cdr.StatP |= STATUS_ROTATING; | |
380 | cdr.DriveState = DRIVESTATE_PREPARE_CD; | |
9f8b032d | 381 | |
80f91a20 | 382 | // this is very long on real hardware, over 6 seconds |
383 | // make it a bit faster here... | |
c6a249e3 | 384 | set_event(PSXINT_CDRLID, cdReadTime * 150); |
80f91a20 | 385 | break; |
9f8b032d | 386 | |
80f91a20 | 387 | case DRIVESTATE_PREPARE_CD: |
b4638ad9 | 388 | if (cdr.StatP & STATUS_SEEK) { |
389 | SetPlaySeekRead(cdr.StatP, 0); | |
390 | cdr.DriveState = DRIVESTATE_STANDBY; | |
391 | } | |
392 | else { | |
393 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK); | |
c6a249e3 | 394 | set_event(PSXINT_CDRLID, cdReadTime * 26); |
b4638ad9 | 395 | } |
80f91a20 | 396 | break; |
9f8b032d | 397 | } |
398 | } | |
399 | ||
fffad32e | 400 | static void Find_CurTrack(const u8 *time) |
401 | { | |
402 | int current, sect; | |
9f8b032d | 403 | |
fffad32e | 404 | current = msf2sec(time); |
9f8b032d | 405 | |
fffad32e | 406 | for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) { |
407 | CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD); | |
408 | sect = fsm2sec(cdr.ResultTD); | |
409 | if (sect - current >= 150) | |
9f8b032d | 410 | break; |
9f8b032d | 411 | } |
412 | } | |
413 | ||
73b29eeb | 414 | static void generate_subq(const u8 *time) |
415 | { | |
416 | unsigned char start[3], next[3]; | |
417 | unsigned int this_s, start_s, next_s, pregap; | |
418 | int relative_s; | |
419 | ||
420 | CDR_getTD(cdr.CurTrack, start); | |
421 | if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) { | |
422 | pregap = 150; | |
423 | CDR_getTD(cdr.CurTrack + 1, next); | |
424 | } | |
425 | else { | |
426 | // last track - cd size | |
427 | pregap = 0; | |
428 | next[0] = cdr.SetSectorEnd[2]; | |
429 | next[1] = cdr.SetSectorEnd[1]; | |
430 | next[2] = cdr.SetSectorEnd[0]; | |
431 | } | |
432 | ||
433 | this_s = msf2sec(time); | |
434 | start_s = fsm2sec(start); | |
435 | next_s = fsm2sec(next); | |
436 | ||
437 | cdr.TrackChanged = FALSE; | |
438 | ||
439 | if (next_s - this_s < pregap) { | |
440 | cdr.TrackChanged = TRUE; | |
441 | cdr.CurTrack++; | |
442 | start_s = next_s; | |
443 | } | |
444 | ||
445 | cdr.subq.Index = 1; | |
446 | ||
447 | relative_s = this_s - start_s; | |
448 | if (relative_s < 0) { | |
449 | cdr.subq.Index = 0; | |
450 | relative_s = -relative_s; | |
451 | } | |
452 | sec2msf(relative_s, cdr.subq.Relative); | |
453 | ||
454 | cdr.subq.Track = itob(cdr.CurTrack); | |
455 | cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]); | |
456 | cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]); | |
457 | cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]); | |
458 | cdr.subq.Absolute[0] = itob(time[0]); | |
459 | cdr.subq.Absolute[1] = itob(time[1]); | |
460 | cdr.subq.Absolute[2] = itob(time[2]); | |
461 | } | |
462 | ||
0eacae49 | 463 | static int ReadTrack(const u8 *time) |
464 | { | |
fffad32e | 465 | unsigned char tmp[3]; |
3c2583a6 | 466 | int read_ok; |
ef79bbde | 467 | |
fffad32e | 468 | tmp[0] = itob(time[0]); |
469 | tmp[1] = itob(time[1]); | |
470 | tmp[2] = itob(time[2]); | |
ef79bbde | 471 | |
26d28fa4 | 472 | CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]); |
473 | ||
fffad32e | 474 | if (memcmp(cdr.Prev, tmp, 3) == 0) |
3c2583a6 | 475 | return 1; |
39df67df | 476 | |
3c2583a6 | 477 | read_ok = CDR_readTrack(tmp); |
1f665cdd | 478 | if (read_ok) |
479 | memcpy(cdr.Prev, tmp, 3); | |
0eacae49 | 480 | return read_ok; |
481 | } | |
482 | ||
483 | static void UpdateSubq(const u8 *time) | |
484 | { | |
485 | const struct SubQ *subq; | |
cdee2d81 | 486 | int s = MSF2SECT(time[0], time[1], time[2]); |
0eacae49 | 487 | u16 crc; |
9f8b032d | 488 | |
cdee2d81 | 489 | if (CheckSBI(s)) |
0eacae49 | 490 | return; |
9f8b032d | 491 | |
cdee2d81 | 492 | subq = (struct SubQ *)CDR_getBufferSub(s); |
73b29eeb | 493 | if (subq != NULL && cdr.CurTrack == 1) { |
fffad32e | 494 | crc = calcCrc((u8 *)subq + 12, 10); |
73b29eeb | 495 | if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) { |
fffad32e | 496 | cdr.subq.Track = subq->TrackNumber; |
497 | cdr.subq.Index = subq->IndexNumber; | |
498 | memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3); | |
499 | memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3); | |
fffad32e | 500 | } |
92ca1ba6 | 501 | else { |
0eacae49 | 502 | CDR_LOG_I("subq bad crc @%02d:%02d:%02d\n", |
503 | time[0], time[1], time[2]); | |
92ca1ba6 | 504 | } |
9f8b032d | 505 | } |
fffad32e | 506 | else { |
73b29eeb | 507 | generate_subq(time); |
9f8b032d | 508 | } |
9f8b032d | 509 | |
fffad32e | 510 | CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n", |
511 | cdr.subq.Track, cdr.subq.Index, | |
512 | cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2], | |
513 | cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]); | |
514 | } | |
9f8b032d | 515 | |
7f457614 | 516 | static void cdrPlayInterrupt_Autopause() |
517 | { | |
66425c25 | 518 | u32 abs_lev_max = 0; |
519 | boolean abs_lev_chselect; | |
520 | u32 i; | |
521 | ||
fffad32e | 522 | if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) { |
69ebf301 | 523 | CDR_LOG_I("autopause\n"); |
7f457614 | 524 | |
69ebf301 | 525 | SetResultSize(1); |
526 | cdr.Result[0] = cdr.StatP; | |
7f457614 | 527 | cdr.Stat = DataEnd; |
f4a0ef36 | 528 | setIrq(0x1000); // 0x1000 just for logging purposes |
7f457614 | 529 | |
530 | StopCdda(); | |
05e5c298 | 531 | SetPlaySeekRead(cdr.StatP, 0); |
7f457614 | 532 | } |
bbcd0c29 | 533 | else if ((cdr.Mode & MODE_REPORT) && !cdr.ReportDelay && |
534 | ((cdr.subq.Absolute[2] & 0x0f) == 0 || cdr.FastForward || cdr.FastBackward)) | |
535 | { | |
69ebf301 | 536 | SetResultSize(8); |
fffad32e | 537 | cdr.Result[0] = cdr.StatP; |
538 | cdr.Result[1] = cdr.subq.Track; | |
539 | cdr.Result[2] = cdr.subq.Index; | |
66425c25 | 540 | |
541 | abs_lev_chselect = cdr.subq.Absolute[1] & 0x01; | |
542 | ||
543 | /* 8 is a hack. For accuracy, it should be 588. */ | |
544 | for (i = 0; i < 8; i++) | |
545 | { | |
546 | abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect])); | |
547 | } | |
548 | abs_lev_max = MIN_VALUE(abs_lev_max, 32767); | |
549 | abs_lev_max |= abs_lev_chselect << 15; | |
9b470ab7 | 550 | |
fffad32e | 551 | if (cdr.subq.Absolute[2] & 0x10) { |
552 | cdr.Result[3] = cdr.subq.Relative[0]; | |
553 | cdr.Result[4] = cdr.subq.Relative[1] | 0x80; | |
554 | cdr.Result[5] = cdr.subq.Relative[2]; | |
7f457614 | 555 | } |
fffad32e | 556 | else { |
557 | cdr.Result[3] = cdr.subq.Absolute[0]; | |
558 | cdr.Result[4] = cdr.subq.Absolute[1]; | |
559 | cdr.Result[5] = cdr.subq.Absolute[2]; | |
560 | } | |
66425c25 | 561 | cdr.Result[6] = abs_lev_max >> 0; |
562 | cdr.Result[7] = abs_lev_max >> 8; | |
7f457614 | 563 | |
7f457614 | 564 | cdr.Stat = DataReady; |
f4a0ef36 | 565 | setIrq(0x1001); |
7f457614 | 566 | } |
bbcd0c29 | 567 | |
568 | if (cdr.ReportDelay) | |
569 | cdr.ReportDelay--; | |
7f457614 | 570 | } |
571 | ||
05e5c298 | 572 | static int cdrSeekTime(unsigned char *target) |
573 | { | |
1290ebe4 | 574 | int diff = msf2sec(cdr.SetSectorPlay) - msf2sec(target); |
3b8815fb | 575 | int seekTime = abs(diff) * (cdReadTime / 2000); |
26d28fa4 | 576 | int cyclesSinceRS = psxRegs.cycle - cdr.LastReadSeekCycles; |
eab544ae | 577 | seekTime = MAX_VALUE(seekTime, 20000); |
578 | ||
579 | // need this stupidly long penalty or else Spyro2 intro desyncs | |
26d28fa4 | 580 | // note: if misapplied this breaks MGS cutscenes among other things |
581 | if (cyclesSinceRS > cdReadTime * 50) | |
3b8815fb | 582 | seekTime += cdReadTime * 25; |
26d28fa4 | 583 | // Transformers Beast Wars Transmetals does Setloc(x),SeekL,Setloc(x),ReadN |
584 | // and then wants some slack time | |
585 | else if (cyclesSinceRS < cdReadTime *3/2) | |
586 | seekTime += cdReadTime; | |
eab544ae | 587 | |
588 | seekTime = MIN_VALUE(seekTime, PSXCLK * 2 / 3); | |
26d28fa4 | 589 | CDR_LOG("seek: %.2f %.2f (%.2f)\n", (float)seekTime / PSXCLK, |
590 | (float)seekTime / cdReadTime, (float)cyclesSinceRS / cdReadTime); | |
05e5c298 | 591 | return seekTime; |
592 | } | |
593 | ||
fc7764f1 | 594 | static u32 cdrAlignTimingHack(u32 cycles) |
595 | { | |
596 | /* | |
597 | * timing hack for T'ai Fu - Wrath of the Tiger: | |
598 | * The game has a bug where it issues some cdc commands from a low priority | |
599 | * vint handler, however there is a higher priority default bios handler | |
600 | * that acks the vint irq and returns, so game's handler is not reached | |
601 | * (see bios irq handler chains at e004 and the game's irq handling func | |
602 | * at 80036810). For the game to work, vint has to arrive after the bios | |
603 | * vint handler rejects some other irq (of which only cd and rcnt2 are | |
604 | * active), but before the game's handler loop reads I_STAT. The time | |
605 | * window for this is quite small (~1k cycles of so). Apparently this | |
606 | * somehow happens naturally on the real hardware. | |
d0d2939d | 607 | * |
608 | * Note: always enforcing this breaks other games like Crash PAL version | |
609 | * (inputs get dropped because bios handler doesn't see interrupts). | |
fc7764f1 | 610 | */ |
d0d2939d | 611 | u32 vint_rel; |
612 | if (psxRegs.cycle - rcnts[3].cycleStart > 250000) | |
613 | return cycles; | |
614 | vint_rel = rcnts[3].cycleStart + 63000 - psxRegs.cycle; | |
fc7764f1 | 615 | vint_rel += PSXCLK / 60; |
616 | while ((s32)(vint_rel - cycles) < 0) | |
617 | vint_rel += PSXCLK / 60; | |
618 | return vint_rel; | |
619 | } | |
620 | ||
4d384ca8 | 621 | static void cdrUpdateTransferBuf(const u8 *buf); |
28eea6ac | 622 | static void cdrReadInterrupt(void); |
3e629be9 | 623 | static void cdrPrepCdda(s16 *buf, int samples); |
624 | static void cdrAttenuate(s16 *buf, int samples, int stereo); | |
28eea6ac | 625 | |
0eacae49 | 626 | static void msfiAdd(u8 *msfi, u32 count) |
627 | { | |
628 | assert(count < 75); | |
629 | msfi[2] += count; | |
630 | if (msfi[2] >= 75) { | |
631 | msfi[2] -= 75; | |
632 | msfi[1]++; | |
633 | if (msfi[1] == 60) { | |
634 | msfi[1] = 0; | |
635 | msfi[0]++; | |
636 | } | |
637 | } | |
638 | } | |
639 | ||
b524c671 | 640 | static void msfiSub(u8 *msfi, u32 count) |
641 | { | |
642 | assert(count < 75); | |
643 | msfi[2] -= count; | |
644 | if ((s8)msfi[2] < 0) { | |
645 | msfi[2] += 75; | |
646 | msfi[1]--; | |
647 | if ((s8)msfi[1] < 0) { | |
648 | msfi[1] = 60; | |
649 | msfi[0]--; | |
650 | } | |
651 | } | |
652 | } | |
653 | ||
c4e62180 | 654 | void cdrPlayReadInterrupt(void) |
7f457614 | 655 | { |
3b8815fb | 656 | cdr.LastReadSeekCycles = psxRegs.cycle; |
eab544ae | 657 | |
28eea6ac | 658 | if (cdr.Reading) { |
659 | cdrReadInterrupt(); | |
660 | return; | |
661 | } | |
662 | ||
39df67df | 663 | if (!cdr.Play) return; |
7f457614 | 664 | |
69ebf301 | 665 | CDR_LOG("CDDA - %02d:%02d:%02d m %02x\n", |
666 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], cdr.Mode); | |
8b380e97 | 667 | |
28eea6ac | 668 | SetPlaySeekRead(cdr.StatP, STATUS_PLAY); |
fffad32e | 669 | if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) { |
69ebf301 | 670 | CDR_LOG_I("end stop\n"); |
fffad32e | 671 | StopCdda(); |
05e5c298 | 672 | SetPlaySeekRead(cdr.StatP, 0); |
fffad32e | 673 | cdr.TrackChanged = TRUE; |
674 | } | |
084b0f31 | 675 | else { |
676 | CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf); | |
677 | } | |
7f457614 | 678 | |
5c96969c | 679 | if (!cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT))) |
7f457614 | 680 | cdrPlayInterrupt_Autopause(); |
681 | ||
1b092fd9 | 682 | if (!cdr.Muted && cdr.Play && !Config.Cdda) { |
3e629be9 | 683 | cdrPrepCdda(read_buf, CD_FRAMESIZE_RAW / 4); |
66425c25 | 684 | cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1); |
78ce9be9 | 685 | SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW, psxRegs.cycle, 0); |
66425c25 | 686 | } |
fffad32e | 687 | |
0eacae49 | 688 | msfiAdd(cdr.SetSectorPlay, 1); |
7f457614 | 689 | |
fffad32e | 690 | // update for CdlGetlocP/autopause |
73b29eeb | 691 | generate_subq(cdr.SetSectorPlay); |
f55c59b7 | 692 | |
c4e62180 | 693 | CDRPLAYREAD_INT(cdReadTime, 0); |
7f457614 | 694 | } |
695 | ||
f4a0ef36 | 696 | #define CMD_PART2 0x100 |
697 | #define CMD_WHILE_NOT_READY 0x200 | |
698 | ||
28eea6ac | 699 | void cdrInterrupt(void) { |
e4268a49 | 700 | int start_rotating = 0; |
701 | int error = 0; | |
fc7764f1 | 702 | u32 cycles, seekTime = 0; |
5c96969c | 703 | u32 second_resp_time = 0; |
3c2583a6 | 704 | const void *buf; |
5c96969c | 705 | u8 ParamC; |
115d0459 | 706 | u8 set_loc[3]; |
3c2583a6 | 707 | int read_ok; |
f4a0ef36 | 708 | u16 not_ready = 0; |
5c96969c | 709 | u16 Cmd; |
115d0459 | 710 | int i; |
ef79bbde P |
711 | |
712 | if (cdr.Stat) { | |
4d74a45a | 713 | CDR_LOG_I("cmd %02x with irqstat %x\n", |
714 | cdr.CmdInProgress, cdr.Stat); | |
ef79bbde P |
715 | return; |
716 | } | |
4d384ca8 | 717 | if (cdr.Irq1Pending) { |
718 | // hand out the "newest" sector, according to nocash | |
719 | cdrUpdateTransferBuf(CDR_getBuffer()); | |
4d74a45a | 720 | CDR_LOG_I("%x:%02x:%02x loaded on ack, cmd=%02x res=%02x\n", |
721 | cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2], | |
722 | cdr.CmdInProgress, cdr.Irq1Pending); | |
4d384ca8 | 723 | SetResultSize(1); |
724 | cdr.Result[0] = cdr.Irq1Pending; | |
725 | cdr.Stat = (cdr.Irq1Pending & STATUS_ERROR) ? DiskError : DataReady; | |
726 | cdr.Irq1Pending = 0; | |
f4a0ef36 | 727 | setIrq(0x1003); |
4d384ca8 | 728 | return; |
729 | } | |
ef79bbde | 730 | |
e4268a49 | 731 | // default response |
732 | SetResultSize(1); | |
733 | cdr.Result[0] = cdr.StatP; | |
734 | cdr.Stat = Acknowledge; | |
735 | ||
5c96969c | 736 | Cmd = cdr.CmdInProgress; |
737 | cdr.CmdInProgress = 0; | |
738 | ParamC = cdr.ParamC; | |
e4268a49 | 739 | |
5c96969c | 740 | if (Cmd < 0x100) { |
f4a0ef36 | 741 | cdr.Ctrl &= ~0x80; |
5c96969c | 742 | cdr.ParamC = 0; |
f4a0ef36 | 743 | cdr.Cmd = 0; |
744 | } | |
745 | ||
746 | switch (cdr.DriveState) { | |
b4638ad9 | 747 | case DRIVESTATE_PREPARE_CD: |
748 | if (Cmd > 2) { | |
749 | // Syphon filter 2 expects commands to work shortly after it sees | |
750 | // STATUS_ROTATING, so give up trying to emulate the startup seq | |
751 | cdr.DriveState = DRIVESTATE_STANDBY; | |
752 | cdr.StatP &= ~STATUS_SEEK; | |
753 | psxRegs.interrupt &= ~(1 << PSXINT_CDRLID); | |
754 | break; | |
755 | } | |
756 | // fallthrough | |
f4a0ef36 | 757 | case DRIVESTATE_LID_OPEN: |
758 | case DRIVESTATE_RESCAN_CD: | |
f4a0ef36 | 759 | // no disk or busy with the initial scan, allowed cmds are limited |
760 | not_ready = CMD_WHILE_NOT_READY; | |
761 | break; | |
5c96969c | 762 | } |
e4268a49 | 763 | |
f4a0ef36 | 764 | switch (Cmd | not_ready) { |
ef79bbde | 765 | case CdlNop: |
f4a0ef36 | 766 | case CdlNop + CMD_WHILE_NOT_READY: |
80f91a20 | 767 | if (cdr.DriveState != DRIVESTATE_LID_OPEN) |
768 | cdr.StatP &= ~STATUS_SHELLOPEN; | |
ef79bbde P |
769 | break; |
770 | ||
771 | case CdlSetloc: | |
1b092fd9 | 772 | // case CdlSetloc + CMD_WHILE_NOT_READY: // or is it? |
115d0459 | 773 | CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]); |
774 | ||
775 | // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75 | |
776 | 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)) | |
777 | { | |
ab88c81f | 778 | CDR_LOG_I("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]); |
14c8b56a | 779 | if (++cdr.errorRetryhack > 100) |
780 | break; | |
115d0459 | 781 | error = ERROR_INVALIDARG; |
782 | goto set_error; | |
783 | } | |
784 | else | |
785 | { | |
786 | for (i = 0; i < 3; i++) | |
115d0459 | 787 | set_loc[i] = btoi(cdr.Param[i]); |
115d0459 | 788 | memcpy(cdr.SetSector, set_loc, 3); |
789 | cdr.SetSector[3] = 0; | |
790 | cdr.SetlocPending = 1; | |
14c8b56a | 791 | cdr.errorRetryhack = 0; |
115d0459 | 792 | } |
ef79bbde P |
793 | break; |
794 | ||
55b8460a | 795 | do_CdlPlay: |
ef79bbde | 796 | case CdlPlay: |
030bd76a | 797 | StopCdda(); |
05e5c298 | 798 | StopReading(); |
799 | ||
d2e271b2 | 800 | cdr.FastBackward = 0; |
801 | cdr.FastForward = 0; | |
802 | ||
2d5ca6c0 | 803 | // BIOS CD Player |
804 | // - Pause player, hit Track 01/02/../xx (Setloc issued!!) | |
805 | ||
5c96969c | 806 | if (ParamC != 0 && cdr.Param[0] != 0) { |
2d5ca6c0 | 807 | int track = btoi( cdr.Param[0] ); |
808 | ||
809 | if (track <= cdr.ResultTN[1]) | |
810 | cdr.CurTrack = track; | |
811 | ||
812 | CDR_LOG("PLAY track %d\n", cdr.CurTrack); | |
813 | ||
814 | if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) { | |
05e5c298 | 815 | for (i = 0; i < 3; i++) |
816 | set_loc[i] = cdr.ResultTD[2 - i]; | |
817 | seekTime = cdrSeekTime(set_loc); | |
818 | memcpy(cdr.SetSectorPlay, set_loc, 3); | |
2d5ca6c0 | 819 | } |
820 | } | |
05e5c298 | 821 | else if (cdr.SetlocPending) { |
822 | seekTime = cdrSeekTime(cdr.SetSector); | |
823 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); | |
824 | } | |
825 | else { | |
826 | CDR_LOG("PLAY Resume @ %d:%d:%d\n", | |
827 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]); | |
828 | } | |
829 | cdr.SetlocPending = 0; | |
2d5ca6c0 | 830 | |
9f8b032d | 831 | /* |
832 | Rayman: detect track changes | |
833 | - fixes logo freeze | |
834 | ||
835 | Twisted Metal 2: skip PREGAP + starting accurate SubQ | |
836 | - plays tracks without retry play | |
837 | ||
838 | Wild 9: skip PREGAP + starting accurate SubQ | |
839 | - plays tracks without retry play | |
840 | */ | |
fffad32e | 841 | Find_CurTrack(cdr.SetSectorPlay); |
0eacae49 | 842 | generate_subq(cdr.SetSectorPlay); |
3c2583a6 | 843 | cdr.LocL[0] = LOCL_INVALID; |
0eacae49 | 844 | cdr.SubqForwardSectors = 1; |
fffad32e | 845 | cdr.TrackChanged = FALSE; |
78ce9be9 | 846 | cdr.FileChannelSelected = 0; |
847 | cdr.AdpcmActive = 0; | |
bbcd0c29 | 848 | cdr.ReportDelay = 60; |
b524c671 | 849 | cdr.sectorsRead = 0; |
9f8b032d | 850 | |
2d5ca6c0 | 851 | if (!Config.Cdda) |
2e88c317 | 852 | CDR_play(cdr.SetSectorPlay); |
9f8b032d | 853 | |
05e5c298 | 854 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING); |
9f8b032d | 855 | |
856 | // BIOS player - set flag again | |
857 | cdr.Play = TRUE; | |
858 | ||
c4e62180 | 859 | CDRPLAYREAD_INT(cdReadTime + seekTime, 1); |
e4268a49 | 860 | start_rotating = 1; |
ef79bbde P |
861 | break; |
862 | ||
9f8b032d | 863 | case CdlForward: |
e4268a49 | 864 | // TODO: error 80 if stopped |
9f8b032d | 865 | cdr.Stat = Complete; |
2e88c317 | 866 | |
9f8b032d | 867 | // GameShark CD Player: Calls 2x + Play 2x |
d2e271b2 | 868 | cdr.FastForward = 1; |
9f8b032d | 869 | cdr.FastBackward = 0; |
ef79bbde P |
870 | break; |
871 | ||
9f8b032d | 872 | case CdlBackward: |
9f8b032d | 873 | cdr.Stat = Complete; |
874 | ||
9f8b032d | 875 | // GameShark CD Player: Calls 2x + Play 2x |
2e88c317 | 876 | cdr.FastBackward = 1; |
9f8b032d | 877 | cdr.FastForward = 0; |
ef79bbde P |
878 | break; |
879 | ||
9f8b032d | 880 | case CdlStandby: |
e4268a49 | 881 | if (cdr.DriveState != DRIVESTATE_STOPPED) { |
882 | error = ERROR_INVALIDARG; | |
883 | goto set_error; | |
884 | } | |
5c96969c | 885 | second_resp_time = cdReadTime * 125 / 2; |
e4268a49 | 886 | start_rotating = 1; |
887 | break; | |
888 | ||
f4a0ef36 | 889 | case CdlStandby + CMD_PART2: |
ef79bbde P |
890 | cdr.Stat = Complete; |
891 | break; | |
892 | ||
893 | case CdlStop: | |
030bd76a | 894 | if (cdr.Play) { |
895 | // grab time for current track | |
896 | CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD); | |
897 | ||
898 | cdr.SetSectorPlay[0] = cdr.ResultTD[2]; | |
899 | cdr.SetSectorPlay[1] = cdr.ResultTD[1]; | |
900 | cdr.SetSectorPlay[2] = cdr.ResultTD[0]; | |
901 | } | |
902 | ||
903 | StopCdda(); | |
904 | StopReading(); | |
05e5c298 | 905 | SetPlaySeekRead(cdr.StatP, 0); |
906 | cdr.StatP &= ~STATUS_ROTATING; | |
3c2583a6 | 907 | cdr.LocL[0] = LOCL_INVALID; |
030bd76a | 908 | |
5c96969c | 909 | second_resp_time = 0x800; |
e4268a49 | 910 | if (cdr.DriveState == DRIVESTATE_STANDBY) |
5c96969c | 911 | second_resp_time = cdReadTime * 30 / 2; |
e4268a49 | 912 | |
913 | cdr.DriveState = DRIVESTATE_STOPPED; | |
e4268a49 | 914 | break; |
915 | ||
f4a0ef36 | 916 | case CdlStop + CMD_PART2: |
ef79bbde | 917 | cdr.Stat = Complete; |
ef79bbde P |
918 | break; |
919 | ||
920 | case CdlPause: | |
05e5c298 | 921 | StopCdda(); |
922 | StopReading(); | |
b524c671 | 923 | |
924 | // how the drive maintains the position while paused is quite | |
925 | // complicated, this is the minimum to make "Bedlam" happy | |
926 | msfiSub(cdr.SetSectorPlay, MIN_VALUE(cdr.sectorsRead, 4)); | |
927 | cdr.sectorsRead = 0; | |
928 | ||
12228917 | 929 | /* |
930 | Gundam Battle Assault 2: much slower (*) | |
931 | - Fixes boot, gameplay | |
2e88c317 | 932 | |
12228917 | 933 | Hokuto no Ken 2: slower |
934 | - Fixes intro + subtitles | |
2e88c317 | 935 | |
12228917 | 936 | InuYasha - Feudal Fairy Tale: slower |
937 | - Fixes battles | |
938 | */ | |
62018a94 | 939 | /* Gameblabla - Tightening the timings (as taken from Duckstation). |
940 | * The timings from Duckstation are based upon hardware tests. | |
941 | * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode, | |
942 | * seems to be timing sensitive as it can depend on the CPU's clock speed. | |
62018a94 | 943 | * */ |
05e5c298 | 944 | if (!(cdr.StatP & (STATUS_PLAY | STATUS_READ))) |
62018a94 | 945 | { |
5c96969c | 946 | second_resp_time = 7000; |
62018a94 | 947 | } |
948 | else | |
949 | { | |
eab544ae | 950 | second_resp_time = (((cdr.Mode & MODE_SPEED) ? 1 : 2) * 1097107); |
62018a94 | 951 | } |
05e5c298 | 952 | SetPlaySeekRead(cdr.StatP, 0); |
ef79bbde P |
953 | break; |
954 | ||
f4a0ef36 | 955 | case CdlPause + CMD_PART2: |
9f8b032d | 956 | cdr.Stat = Complete; |
ef79bbde P |
957 | break; |
958 | ||
8399ca33 | 959 | case CdlReset: |
f4a0ef36 | 960 | case CdlReset + CMD_WHILE_NOT_READY: |
05e5c298 | 961 | StopCdda(); |
962 | StopReading(); | |
963 | SetPlaySeekRead(cdr.StatP, 0); | |
3c2583a6 | 964 | cdr.LocL[0] = LOCL_INVALID; |
8399ca33 | 965 | cdr.Muted = FALSE; |
dfd4f48e | 966 | cdr.Mode = MODE_SIZE_2340; /* This fixes This is Football 2, Pooh's Party lockups */ |
f4a0ef36 | 967 | second_resp_time = not_ready ? 70000 : 4100000; |
e4268a49 | 968 | start_rotating = 1; |
969 | break; | |
970 | ||
f4a0ef36 | 971 | case CdlReset + CMD_PART2: |
972 | case CdlReset + CMD_PART2 + CMD_WHILE_NOT_READY: | |
9f8b032d | 973 | cdr.Stat = Complete; |
ef79bbde P |
974 | break; |
975 | ||
9f8b032d | 976 | case CdlMute: |
030bd76a | 977 | cdr.Muted = TRUE; |
ef79bbde P |
978 | break; |
979 | ||
9f8b032d | 980 | case CdlDemute: |
030bd76a | 981 | cdr.Muted = FALSE; |
ef79bbde P |
982 | break; |
983 | ||
9f8b032d | 984 | case CdlSetfilter: |
78ce9be9 | 985 | cdr.FilterFile = cdr.Param[0]; |
986 | cdr.FilterChannel = cdr.Param[1]; | |
9f8b032d | 987 | break; |
ef79bbde P |
988 | |
989 | case CdlSetmode: | |
f4a0ef36 | 990 | case CdlSetmode + CMD_WHILE_NOT_READY: |
5c96969c | 991 | CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]); |
992 | cdr.Mode = cdr.Param[0]; | |
9f8b032d | 993 | break; |
ef79bbde | 994 | |
95465b97 | 995 | case CdlGetparam: |
f4a0ef36 | 996 | case CdlGetparam + CMD_WHILE_NOT_READY: |
2e88c317 | 997 | /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */ |
95465b97 | 998 | SetResultSize(5); |
9f8b032d | 999 | cdr.Result[1] = cdr.Mode; |
95465b97 | 1000 | cdr.Result[2] = 0; |
78ce9be9 | 1001 | cdr.Result[3] = cdr.FilterFile; |
1002 | cdr.Result[4] = cdr.FilterChannel; | |
9f8b032d | 1003 | break; |
ef79bbde | 1004 | |
9f8b032d | 1005 | case CdlGetlocL: |
3c2583a6 | 1006 | if (cdr.LocL[0] == LOCL_INVALID) { |
1007 | error = 0x80; | |
1008 | goto set_error; | |
1009 | } | |
ef79bbde | 1010 | SetResultSize(8); |
3c2583a6 | 1011 | memcpy(cdr.Result, cdr.LocL, 8); |
9f8b032d | 1012 | break; |
ef79bbde P |
1013 | |
1014 | case CdlGetlocP: | |
fffad32e | 1015 | SetResultSize(8); |
1016 | memcpy(&cdr.Result, &cdr.subq, 8); | |
e4268a49 | 1017 | break; |
892bd7d4 | 1018 | |
e4268a49 | 1019 | case CdlReadT: // SetSession? |
1020 | // really long | |
5c96969c | 1021 | second_resp_time = cdReadTime * 290 / 4; |
e4268a49 | 1022 | start_rotating = 1; |
1023 | break; | |
1024 | ||
f4a0ef36 | 1025 | case CdlReadT + CMD_PART2: |
e4268a49 | 1026 | cdr.Stat = Complete; |
ef79bbde P |
1027 | break; |
1028 | ||
9f8b032d | 1029 | case CdlGetTN: |
ef79bbde | 1030 | SetResultSize(3); |
9f8b032d | 1031 | if (CDR_getTN(cdr.ResultTN) == -1) { |
ef79bbde | 1032 | cdr.Stat = DiskError; |
9f8b032d | 1033 | cdr.Result[0] |= STATUS_ERROR; |
1034 | } else { | |
1035 | cdr.Stat = Acknowledge; | |
1036 | cdr.Result[1] = itob(cdr.ResultTN[0]); | |
1037 | cdr.Result[2] = itob(cdr.ResultTN[1]); | |
1038 | } | |
1039 | break; | |
ef79bbde | 1040 | |
9f8b032d | 1041 | case CdlGetTD: |
ef79bbde P |
1042 | cdr.Track = btoi(cdr.Param[0]); |
1043 | SetResultSize(4); | |
ef79bbde P |
1044 | if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) { |
1045 | cdr.Stat = DiskError; | |
9f8b032d | 1046 | cdr.Result[0] |= STATUS_ERROR; |
ef79bbde P |
1047 | } else { |
1048 | cdr.Stat = Acknowledge; | |
1049 | cdr.Result[0] = cdr.StatP; | |
1050 | cdr.Result[1] = itob(cdr.ResultTD[2]); | |
1051 | cdr.Result[2] = itob(cdr.ResultTD[1]); | |
a2c864cc | 1052 | /* According to Nocash's documentation, the function doesn't care about ff. |
1053 | * This can be seen also in Mednafen's implementation. */ | |
1054 | //cdr.Result[3] = itob(cdr.ResultTD[0]); | |
ef79bbde P |
1055 | } |
1056 | break; | |
1057 | ||
9f8b032d | 1058 | case CdlSeekL: |
39df67df | 1059 | case CdlSeekP: |
030bd76a | 1060 | StopCdda(); |
1061 | StopReading(); | |
c4e62180 | 1062 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING); |
9f8b032d | 1063 | |
05e5c298 | 1064 | seekTime = cdrSeekTime(cdr.SetSector); |
1065 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); | |
9f8b032d | 1066 | /* |
1067 | Crusaders of Might and Magic = 0.5x-4x | |
1068 | - fix cutscene speech start | |
1069 | ||
1070 | Eggs of Steel = 2x-? | |
1071 | - fix new game | |
1072 | ||
1073 | Medievil = ?-4x | |
1074 | - fix cutscene speech | |
1075 | ||
1076 | Rockman X5 = 0.5-4x | |
1077 | - fix capcom logo | |
1078 | */ | |
c4e62180 | 1079 | second_resp_time = cdReadTime + seekTime; |
e4268a49 | 1080 | start_rotating = 1; |
ef79bbde P |
1081 | break; |
1082 | ||
c4e62180 | 1083 | case CdlSeekL + CMD_PART2: |
1084 | case CdlSeekP + CMD_PART2: | |
1085 | SetPlaySeekRead(cdr.StatP, 0); | |
5b406fd9 | 1086 | cdr.Result[0] = cdr.StatP; |
c4e62180 | 1087 | cdr.Stat = Complete; |
1088 | ||
1089 | Find_CurTrack(cdr.SetSectorPlay); | |
3c2583a6 | 1090 | read_ok = ReadTrack(cdr.SetSectorPlay); |
1091 | if (read_ok && (buf = CDR_getBuffer())) | |
1092 | memcpy(cdr.LocL, buf, 8); | |
0eacae49 | 1093 | UpdateSubq(cdr.SetSectorPlay); |
c4e62180 | 1094 | cdr.TrackChanged = FALSE; |
3b8815fb | 1095 | cdr.LastReadSeekCycles = psxRegs.cycle; |
c4e62180 | 1096 | break; |
1097 | ||
ef79bbde | 1098 | case CdlTest: |
f4a0ef36 | 1099 | case CdlTest + CMD_WHILE_NOT_READY: |
9f8b032d | 1100 | switch (cdr.Param[0]) { |
1101 | case 0x20: // System Controller ROM Version | |
ef79bbde P |
1102 | SetResultSize(4); |
1103 | memcpy(cdr.Result, Test20, 4); | |
1104 | break; | |
1105 | case 0x22: | |
1106 | SetResultSize(8); | |
1107 | memcpy(cdr.Result, Test22, 4); | |
1108 | break; | |
1109 | case 0x23: case 0x24: | |
1110 | SetResultSize(8); | |
1111 | memcpy(cdr.Result, Test23, 4); | |
1112 | break; | |
9f8b032d | 1113 | } |
ef79bbde P |
1114 | break; |
1115 | ||
9f8b032d | 1116 | case CdlID: |
5c96969c | 1117 | second_resp_time = 20480; |
ef79bbde P |
1118 | break; |
1119 | ||
f4a0ef36 | 1120 | case CdlID + CMD_PART2: |
ef79bbde | 1121 | SetResultSize(8); |
89ec56af | 1122 | cdr.Result[0] = cdr.StatP; |
1123 | cdr.Result[1] = 0; | |
1124 | cdr.Result[2] = 0; | |
1125 | cdr.Result[3] = 0; | |
9f8b032d | 1126 | |
d8432250 | 1127 | // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed |
1128 | if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) { | |
1129 | cdr.Result[1] = 0xc0; | |
9f8b032d | 1130 | } |
1131 | else { | |
89ec56af | 1132 | if (stat.Type == 2) |
1133 | cdr.Result[1] |= 0x10; | |
1134 | if (CdromId[0] == '\0') | |
9f8b032d | 1135 | cdr.Result[1] |= 0x80; |
9f8b032d | 1136 | } |
89ec56af | 1137 | cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08; |
9dca6543 | 1138 | CDR_LOG_I("CdlID: %02x %02x %02x %02x\n", cdr.Result[0], |
1139 | cdr.Result[1], cdr.Result[2], cdr.Result[3]); | |
9f8b032d | 1140 | |
3e42b115 | 1141 | /* This adds the string "PCSX" in Playstation bios boot screen */ |
1142 | memcpy((char *)&cdr.Result[4], "PCSX", 4); | |
ef79bbde P |
1143 | cdr.Stat = Complete; |
1144 | break; | |
1145 | ||
8399ca33 | 1146 | case CdlInit: |
f4a0ef36 | 1147 | case CdlInit + CMD_WHILE_NOT_READY: |
05e5c298 | 1148 | StopCdda(); |
1149 | StopReading(); | |
1150 | SetPlaySeekRead(cdr.StatP, 0); | |
e4268a49 | 1151 | // yes, it really sets STATUS_SHELLOPEN |
1152 | cdr.StatP |= STATUS_SHELLOPEN; | |
1153 | cdr.DriveState = DRIVESTATE_RESCAN_CD; | |
c6a249e3 | 1154 | set_event(PSXINT_CDRLID, 20480); |
e4268a49 | 1155 | start_rotating = 1; |
9f8b032d | 1156 | break; |
1157 | ||
e4268a49 | 1158 | case CdlGetQ: |
f4a0ef36 | 1159 | case CdlGetQ + CMD_WHILE_NOT_READY: |
9f8b032d | 1160 | break; |
1161 | ||
1162 | case CdlReadToc: | |
f4a0ef36 | 1163 | case CdlReadToc + CMD_WHILE_NOT_READY: |
3c2583a6 | 1164 | cdr.LocL[0] = LOCL_INVALID; |
5c96969c | 1165 | second_resp_time = cdReadTime * 180 / 4; |
e4268a49 | 1166 | start_rotating = 1; |
ef79bbde P |
1167 | break; |
1168 | ||
f4a0ef36 | 1169 | case CdlReadToc + CMD_PART2: |
1170 | case CdlReadToc + CMD_PART2 + CMD_WHILE_NOT_READY: | |
9f8b032d | 1171 | cdr.Stat = Complete; |
ef79bbde P |
1172 | break; |
1173 | ||
94c118c3 | 1174 | case CdlReadN: |
1175 | case CdlReadS: | |
ab88c81f | 1176 | if (cdr.Reading && !cdr.SetlocPending) |
1177 | break; | |
1178 | ||
05e5c298 | 1179 | Find_CurTrack(cdr.SetlocPending ? cdr.SetSector : cdr.SetSectorPlay); |
55b8460a | 1180 | |
1181 | if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1) | |
1182 | // Read* acts as play for cdda tracks in cdda mode | |
1183 | goto do_CdlPlay; | |
1184 | ||
05e5c298 | 1185 | StopCdda(); |
1186 | if (cdr.SetlocPending) { | |
1187 | seekTime = cdrSeekTime(cdr.SetSector); | |
1188 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); | |
1189 | cdr.SetlocPending = 0; | |
1190 | } | |
030bd76a | 1191 | cdr.Reading = 1; |
78ce9be9 | 1192 | cdr.FileChannelSelected = 0; |
1193 | cdr.AdpcmActive = 0; | |
ef79bbde | 1194 | |
9f8b032d | 1195 | // Fighting Force 2 - update subq time immediately |
1196 | // - fixes new game | |
0eacae49 | 1197 | UpdateSubq(cdr.SetSectorPlay); |
3c2583a6 | 1198 | cdr.LocL[0] = LOCL_INVALID; |
0eacae49 | 1199 | cdr.SubqForwardSectors = 1; |
b524c671 | 1200 | cdr.sectorsRead = 0; |
9f8b032d | 1201 | |
dfd4f48e | 1202 | cycles = (cdr.Mode & MODE_SPEED) ? cdReadTime : cdReadTime * 2; |
fc7764f1 | 1203 | cycles += seekTime; |
d0d2939d | 1204 | if (Config.hacks.cdr_read_timing) |
1205 | cycles = cdrAlignTimingHack(cycles); | |
fc7764f1 | 1206 | CDRPLAYREAD_INT(cycles, 1); |
ef79bbde | 1207 | |
05e5c298 | 1208 | SetPlaySeekRead(cdr.StatP, STATUS_SEEK); |
e4268a49 | 1209 | start_rotating = 1; |
ef79bbde | 1210 | break; |
3c2583a6 | 1211 | |
f96ca921 | 1212 | case CdlSync: |
ef79bbde | 1213 | default: |
e4268a49 | 1214 | error = ERROR_INVALIDCMD; |
1215 | // FALLTHROUGH | |
1216 | ||
1217 | set_error: | |
1218 | SetResultSize(2); | |
1219 | cdr.Result[0] = cdr.StatP | STATUS_ERROR; | |
f4a0ef36 | 1220 | cdr.Result[1] = not_ready ? ERROR_NOTREADY : error; |
e4268a49 | 1221 | cdr.Stat = DiskError; |
26d28fa4 | 1222 | CDR_LOG_I("cmd %02x error %02x\n", Cmd, cdr.Result[1]); |
ef79bbde P |
1223 | break; |
1224 | } | |
1225 | ||
e4268a49 | 1226 | if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) { |
1227 | cdr.DriveState = DRIVESTATE_STANDBY; | |
1228 | cdr.StatP |= STATUS_ROTATING; | |
1229 | } | |
1230 | ||
5c96969c | 1231 | if (second_resp_time) { |
1232 | cdr.CmdInProgress = Cmd | 0x100; | |
c6a249e3 | 1233 | set_event(PSXINT_CDR, second_resp_time); |
5c96969c | 1234 | } |
1235 | else if (cdr.Cmd && cdr.Cmd != (Cmd & 0xff)) { | |
1236 | cdr.CmdInProgress = cdr.Cmd; | |
4d74a45a | 1237 | CDR_LOG_I("cmd %02x came before %02x finished\n", cdr.Cmd, Cmd); |
5c96969c | 1238 | } |
1239 | ||
1240 | setIrq(Cmd); | |
ef79bbde P |
1241 | } |
1242 | ||
8f2bb0cb | 1243 | #ifdef HAVE_ARMV7 |
53598a71 | 1244 | #define ssat32_to_16(v) \ |
1245 | asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) | |
1246 | #else | |
1247 | #define ssat32_to_16(v) do { \ | |
1248 | if (v < -32768) v = -32768; \ | |
1249 | else if (v > 32767) v = 32767; \ | |
1250 | } while (0) | |
1251 | #endif | |
1252 | ||
3e629be9 | 1253 | static void cdrPrepCdda(s16 *buf, int samples) |
1254 | { | |
1255 | #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ | |
1256 | int i; | |
1257 | for (i = 0; i < samples; i++) { | |
1258 | buf[i * 2 + 0] = SWAP16(buf[i * 2 + 0]); | |
1259 | buf[i * 2 + 1] = SWAP16(buf[i * 2 + 1]); | |
1260 | } | |
1261 | #endif | |
1262 | } | |
1263 | ||
1264 | static void cdrAttenuate(s16 *buf, int samples, int stereo) | |
53598a71 | 1265 | { |
1266 | int i, l, r; | |
1267 | int ll = cdr.AttenuatorLeftToLeft; | |
1268 | int lr = cdr.AttenuatorLeftToRight; | |
1269 | int rl = cdr.AttenuatorRightToLeft; | |
1270 | int rr = cdr.AttenuatorRightToRight; | |
1271 | ||
1272 | if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88) | |
1273 | return; | |
1274 | ||
1275 | if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40) | |
1276 | return; | |
1277 | ||
1278 | if (stereo) { | |
1279 | for (i = 0; i < samples; i++) { | |
1280 | l = buf[i * 2]; | |
1281 | r = buf[i * 2 + 1]; | |
1282 | l = (l * ll + r * rl) >> 7; | |
1283 | r = (r * rr + l * lr) >> 7; | |
1284 | ssat32_to_16(l); | |
1285 | ssat32_to_16(r); | |
1286 | buf[i * 2] = l; | |
1287 | buf[i * 2 + 1] = r; | |
1288 | } | |
1289 | } | |
1290 | else { | |
1291 | for (i = 0; i < samples; i++) { | |
1292 | l = buf[i]; | |
1293 | l = l * (ll + rl) >> 7; | |
1294 | //r = r * (rr + lr) >> 7; | |
1295 | ssat32_to_16(l); | |
1296 | //ssat32_to_16(r); | |
1297 | buf[i] = l; | |
1298 | } | |
1299 | } | |
1300 | } | |
1301 | ||
f55c59b7 | 1302 | static void cdrReadInterruptSetResult(unsigned char result) |
28eea6ac | 1303 | { |
5c96969c | 1304 | if (cdr.Stat) { |
4d74a45a | 1305 | CDR_LOG_I("%d:%02d:%02d irq miss, cmd=%02x irqstat=%02x\n", |
f55c59b7 | 1306 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], |
1307 | cdr.CmdInProgress, cdr.Stat); | |
1308 | cdr.Irq1Pending = result; | |
ef79bbde P |
1309 | return; |
1310 | } | |
ef79bbde | 1311 | SetResultSize(1); |
f55c59b7 | 1312 | cdr.Result[0] = result; |
1313 | cdr.Stat = (result & STATUS_ERROR) ? DiskError : DataReady; | |
f4a0ef36 | 1314 | setIrq(0x1004); |
f55c59b7 | 1315 | } |
1316 | ||
1317 | static void cdrUpdateTransferBuf(const u8 *buf) | |
1318 | { | |
1319 | if (!buf) | |
1320 | return; | |
1321 | memcpy(cdr.Transfer, buf, DATA_SIZE); | |
1322 | CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]); | |
b524c671 | 1323 | CDR_LOG("cdr.Transfer %02x:%02x:%02x\n", |
1324 | cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]); | |
e411faef | 1325 | if (cdr.FifoOffset < 2048 + 12) |
4d74a45a | 1326 | CDR_LOG("FifoOffset(1) %d/%d\n", cdr.FifoOffset, cdr.FifoSize); |
f55c59b7 | 1327 | } |
1328 | ||
1329 | static void cdrReadInterrupt(void) | |
1330 | { | |
78ce9be9 | 1331 | const struct { u8 file, chan, mode, coding; } *subhdr; |
1332 | const u8 *buf = NULL; | |
1333 | int deliver_data = 1; | |
0eacae49 | 1334 | u8 subqPos[3]; |
3c2583a6 | 1335 | int read_ok; |
f55c59b7 | 1336 | |
0eacae49 | 1337 | memcpy(subqPos, cdr.SetSectorPlay, sizeof(subqPos)); |
1338 | msfiAdd(subqPos, cdr.SubqForwardSectors); | |
1339 | UpdateSubq(subqPos); | |
1340 | if (cdr.SubqForwardSectors < SUBQ_FORWARD_SECTORS) { | |
1341 | cdr.SubqForwardSectors++; | |
1342 | CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0); | |
1343 | return; | |
1344 | } | |
1345 | ||
e33e9f99 | 1346 | // note: CdlGetlocL should work as soon as STATUS_READ is indicated |
1347 | SetPlaySeekRead(cdr.StatP, STATUS_READ | STATUS_ROTATING); | |
b524c671 | 1348 | cdr.sectorsRead++; |
e33e9f99 | 1349 | |
3c2583a6 | 1350 | read_ok = ReadTrack(cdr.SetSectorPlay); |
1351 | if (read_ok) | |
f55c59b7 | 1352 | buf = CDR_getBuffer(); |
ef79bbde | 1353 | if (buf == NULL) |
3c2583a6 | 1354 | read_ok = 0; |
ef79bbde | 1355 | |
3c2583a6 | 1356 | if (!read_ok) { |
8b380e97 | 1357 | CDR_LOG_I("cdrReadInterrupt() Log: err\n"); |
f55c59b7 | 1358 | cdrReadInterruptSetResult(cdr.StatP | STATUS_ERROR); |
ef79bbde P |
1359 | return; |
1360 | } | |
3c2583a6 | 1361 | memcpy(cdr.LocL, buf, 8); |
ef79bbde | 1362 | |
792f1697 | 1363 | if (!cdr.Stat && !cdr.Irq1Pending) |
f55c59b7 | 1364 | cdrUpdateTransferBuf(buf); |
ef79bbde | 1365 | |
78ce9be9 | 1366 | subhdr = (void *)(buf + 4); |
1367 | do { | |
1368 | // try to process as adpcm | |
1369 | if (!(cdr.Mode & MODE_STRSND)) | |
1370 | break; | |
1371 | if (buf[3] != 2 || (subhdr->mode & 0x44) != 0x44) // or 0x64? | |
1372 | break; | |
1373 | CDR_LOG("f=%d m=%d %d,%3d | %d,%2d | %d,%2d\n", !!(cdr.Mode & MODE_SF), cdr.Muted, | |
1374 | subhdr->file, subhdr->chan, cdr.CurFile, cdr.CurChannel, cdr.FilterFile, cdr.FilterChannel); | |
1375 | if ((cdr.Mode & MODE_SF) && (subhdr->file != cdr.FilterFile || subhdr->chan != cdr.FilterChannel)) | |
1376 | break; | |
1377 | if (subhdr->chan & 0xe0) { // ? | |
1378 | if (subhdr->chan != 0xff) | |
1379 | log_unhandled("adpcm %d:%d\n", subhdr->file, subhdr->chan); | |
1380 | break; | |
1381 | } | |
1382 | if (!cdr.FileChannelSelected) { | |
1383 | cdr.CurFile = subhdr->file; | |
1384 | cdr.CurChannel = subhdr->chan; | |
1385 | cdr.FileChannelSelected = 1; | |
9f8b032d | 1386 | } |
78ce9be9 | 1387 | else if (subhdr->file != cdr.CurFile || subhdr->chan != cdr.CurChannel) |
1388 | break; | |
9f8b032d | 1389 | |
78ce9be9 | 1390 | // accepted as adpcm |
1391 | deliver_data = 0; | |
1392 | ||
1393 | if (Config.Xa) | |
1394 | break; | |
1395 | if (!cdr.Muted && cdr.AdpcmActive) { | |
1396 | cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo); | |
1397 | SPU_playADPCMchannel(&cdr.Xa, psxRegs.cycle, 0); | |
ef79bbde | 1398 | } |
78ce9be9 | 1399 | // decode next |
1400 | cdr.AdpcmActive = !xa_decode_sector(&cdr.Xa, buf + 4, !cdr.AdpcmActive); | |
1401 | } while (0); | |
1402 | ||
1403 | if ((cdr.Mode & MODE_SF) && (subhdr->mode & 0x44) == 0x44) // according to nocash | |
1404 | deliver_data = 0; | |
ef79bbde | 1405 | |
f55c59b7 | 1406 | /* |
1407 | Croc 2: $40 - only FORM1 (*) | |
1408 | Judge Dredd: $C8 - only FORM1 (*) | |
1409 | Sim Theme Park - no adpcm at all (zero) | |
1410 | */ | |
1411 | ||
78ce9be9 | 1412 | if (deliver_data) |
f55c59b7 | 1413 | cdrReadInterruptSetResult(cdr.StatP); |
1414 | ||
0eacae49 | 1415 | msfiAdd(cdr.SetSectorPlay, 1); |
9f8b032d | 1416 | |
c4e62180 | 1417 | CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0); |
f55c59b7 | 1418 | } |
9f8b032d | 1419 | |
ef79bbde P |
1420 | /* |
1421 | cdrRead0: | |
78ce9be9 | 1422 | bit 0,1 - reg index |
1423 | bit 2 - adpcm active | |
ef79bbde P |
1424 | bit 5 - 1 result ready |
1425 | bit 6 - 1 dma ready | |
1426 | bit 7 - 1 command being processed | |
1427 | */ | |
1428 | ||
1429 | unsigned char cdrRead0(void) { | |
78ce9be9 | 1430 | cdr.Ctrl &= ~0x24; |
1431 | cdr.Ctrl |= cdr.AdpcmActive << 2; | |
1432 | cdr.Ctrl |= cdr.ResultReady << 5; | |
ef79bbde | 1433 | |
5c96969c | 1434 | cdr.Ctrl |= 0x40; // data fifo not empty |
ef79bbde P |
1435 | |
1436 | // What means the 0x10 and the 0x08 bits? I only saw it used by the bios | |
1437 | cdr.Ctrl |= 0x18; | |
1438 | ||
e7acd858 | 1439 | CDR_LOG_IO("cdr r0.sta: %02x\n", cdr.Ctrl); |
ef79bbde P |
1440 | |
1441 | return psxHu8(0x1800) = cdr.Ctrl; | |
1442 | } | |
1443 | ||
ef79bbde | 1444 | void cdrWrite0(unsigned char rt) { |
e7acd858 | 1445 | CDR_LOG_IO("cdr w0.idx: %02x\n", rt); |
8b380e97 | 1446 | |
50b13be9 | 1447 | cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3); |
ef79bbde P |
1448 | } |
1449 | ||
1450 | unsigned char cdrRead1(void) { | |
94c118c3 | 1451 | if ((cdr.ResultP & 0xf) < cdr.ResultC) |
9f8b032d | 1452 | psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf]; |
94c118c3 | 1453 | else |
ef79bbde | 1454 | psxHu8(0x1801) = 0; |
94c118c3 | 1455 | cdr.ResultP++; |
1456 | if (cdr.ResultP == cdr.ResultC) | |
1457 | cdr.ResultReady = 0; | |
1458 | ||
e7acd858 | 1459 | CDR_LOG_IO("cdr r1.rsp: %02x #%u\n", psxHu8(0x1801), cdr.ResultP - 1); |
8b380e97 | 1460 | |
ef79bbde P |
1461 | return psxHu8(0x1801); |
1462 | } | |
1463 | ||
1464 | void cdrWrite1(unsigned char rt) { | |
e7acd858 | 1465 | const char *rnames[] = { "cmd", "smd", "smc", "arr" }; (void)rnames; |
1466 | CDR_LOG_IO("cdr w1.%s: %02x\n", rnames[cdr.Ctrl & 3], rt); | |
9f8b032d | 1467 | |
94c118c3 | 1468 | switch (cdr.Ctrl & 3) { |
1469 | case 0: | |
1470 | break; | |
1471 | case 3: | |
53598a71 | 1472 | cdr.AttenuatorRightToRightT = rt; |
94c118c3 | 1473 | return; |
1474 | default: | |
1475 | return; | |
9f8b032d | 1476 | } |
1477 | ||
8b380e97 | 1478 | #ifdef CDR_LOG_CMD_IRQ |
4d74a45a | 1479 | CDR_LOG_I("CD1 write: %x (%s)", rt, CmdName[rt]); |
ef79bbde | 1480 | if (cdr.ParamC) { |
e7acd858 | 1481 | int i; |
ef79bbde P |
1482 | SysPrintf(" Param[%d] = {", cdr.ParamC); |
1483 | for (i = 0; i < cdr.ParamC; i++) | |
1484 | SysPrintf(" %x,", cdr.Param[i]); | |
1485 | SysPrintf("}\n"); | |
1486 | } else { | |
1487 | SysPrintf("\n"); | |
1488 | } | |
1489 | #endif | |
1490 | ||
2daaaae3 | 1491 | cdr.ResultReady = 0; |
94c118c3 | 1492 | cdr.Ctrl |= 0x80; |
8b380e97 | 1493 | |
5c96969c | 1494 | if (!cdr.CmdInProgress) { |
1495 | cdr.CmdInProgress = rt; | |
1496 | // should be something like 12k + controller delays | |
c6a249e3 | 1497 | set_event(PSXINT_CDR, 5000); |
9f8b032d | 1498 | } |
5c96969c | 1499 | else { |
4d74a45a | 1500 | CDR_LOG_I("cmd while busy: %02x, prev %02x, busy %02x\n", |
1501 | rt, cdr.Cmd, cdr.CmdInProgress); | |
5c96969c | 1502 | if (cdr.CmdInProgress < 0x100) // no pending 2nd response |
1503 | cdr.CmdInProgress = rt; | |
1504 | } | |
1505 | ||
1506 | cdr.Cmd = rt; | |
ef79bbde P |
1507 | } |
1508 | ||
1509 | unsigned char cdrRead2(void) { | |
ca37f771 | 1510 | unsigned char ret = cdr.Transfer[0x920]; |
ef79bbde | 1511 | |
e411faef | 1512 | if (cdr.FifoOffset < cdr.FifoSize) |
6cbdadb3 | 1513 | ret = cdr.Transfer[cdr.FifoOffset++]; |
1514 | else | |
4d74a45a | 1515 | CDR_LOG_I("read empty fifo (%d)\n", cdr.FifoSize); |
ef79bbde | 1516 | |
e7acd858 | 1517 | CDR_LOG_IO("cdr r2.dat: %02x\n", ret); |
ef79bbde P |
1518 | return ret; |
1519 | } | |
1520 | ||
1521 | void cdrWrite2(unsigned char rt) { | |
e7acd858 | 1522 | const char *rnames[] = { "prm", "ien", "all", "arl" }; (void)rnames; |
1523 | CDR_LOG_IO("cdr w2.%s: %02x\n", rnames[cdr.Ctrl & 3], rt); | |
9f8b032d | 1524 | |
94c118c3 | 1525 | switch (cdr.Ctrl & 3) { |
1526 | case 0: | |
1527 | if (cdr.ParamC < 8) // FIXME: size and wrapping | |
1528 | cdr.Param[cdr.ParamC++] = rt; | |
1529 | return; | |
1530 | case 1: | |
1531 | cdr.Reg2 = rt; | |
f4a0ef36 | 1532 | setIrq(0x1005); |
94c118c3 | 1533 | return; |
1534 | case 2: | |
53598a71 | 1535 | cdr.AttenuatorLeftToLeftT = rt; |
94c118c3 | 1536 | return; |
1537 | case 3: | |
53598a71 | 1538 | cdr.AttenuatorRightToLeftT = rt; |
94c118c3 | 1539 | return; |
ef79bbde P |
1540 | } |
1541 | } | |
1542 | ||
1543 | unsigned char cdrRead3(void) { | |
94c118c3 | 1544 | if (cdr.Ctrl & 0x1) |
1545 | psxHu8(0x1803) = cdr.Stat | 0xE0; | |
1546 | else | |
1547 | psxHu8(0x1803) = cdr.Reg2 | 0xE0; | |
8b380e97 | 1548 | |
e7acd858 | 1549 | CDR_LOG_IO("cdr r3.%s: %02x\n", (cdr.Ctrl & 1) ? "ifl" : "ien", psxHu8(0x1803)); |
ef79bbde P |
1550 | return psxHu8(0x1803); |
1551 | } | |
1552 | ||
1553 | void cdrWrite3(unsigned char rt) { | |
e7acd858 | 1554 | const char *rnames[] = { "req", "ifl", "alr", "ava" }; (void)rnames; |
1555 | CDR_LOG_IO("cdr w3.%s: %02x\n", rnames[cdr.Ctrl & 3], rt); | |
056d6759 | 1556 | |
94c118c3 | 1557 | switch (cdr.Ctrl & 3) { |
1558 | case 0: | |
a34a2445 | 1559 | break; // transfer |
94c118c3 | 1560 | case 1: |
4d384ca8 | 1561 | if (cdr.Stat & rt) { |
aced3eb3 | 1562 | u32 nextCycle = psxRegs.intCycle[PSXINT_CDR].sCycle |
1563 | + psxRegs.intCycle[PSXINT_CDR].cycle; | |
4d74a45a | 1564 | int pending = psxRegs.interrupt & (1 << PSXINT_CDR); |
5c96969c | 1565 | #ifdef CDR_LOG_CMD_IRQ |
4d74a45a | 1566 | CDR_LOG_I("ack %02x (w=%02x p=%d,%x,%x,%d)\n", cdr.Stat & rt, rt, |
1567 | !!pending, cdr.CmdInProgress, | |
1568 | cdr.Irq1Pending, nextCycle - psxRegs.cycle); | |
5c96969c | 1569 | #endif |
aced3eb3 | 1570 | // note: Croc, Shadow Tower (more) vs Discworld Noir (<993) |
4d74a45a | 1571 | if (!pending && (cdr.CmdInProgress || cdr.Irq1Pending)) |
aced3eb3 | 1572 | { |
792f1697 | 1573 | s32 c = 2048; |
1574 | if (cdr.CmdInProgress) { | |
1575 | c = 2048 - (psxRegs.cycle - nextCycle); | |
1576 | c = MAX_VALUE(c, 512); | |
1577 | } | |
c6a249e3 | 1578 | set_event(PSXINT_CDR, c); |
aced3eb3 | 1579 | } |
4d384ca8 | 1580 | } |
a34a2445 | 1581 | cdr.Stat &= ~rt; |
1582 | ||
1583 | if (rt & 0x40) | |
1584 | cdr.ParamC = 0; | |
1585 | return; | |
94c118c3 | 1586 | case 2: |
53598a71 | 1587 | cdr.AttenuatorLeftToRightT = rt; |
94c118c3 | 1588 | return; |
1589 | case 3: | |
53598a71 | 1590 | if (rt & 0x20) { |
1591 | memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4); | |
5c96969c | 1592 | CDR_LOG("CD-XA Volume: %02x %02x | %02x %02x\n", |
53598a71 | 1593 | cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight, |
1594 | cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight); | |
1595 | } | |
94c118c3 | 1596 | return; |
9f8b032d | 1597 | } |
056d6759 | 1598 | |
e411faef | 1599 | // test: Viewpoint |
1600 | if ((rt & 0x80) && cdr.FifoOffset < cdr.FifoSize) { | |
1601 | CDR_LOG("cdrom: FifoOffset(2) %d/%d\n", cdr.FifoOffset, cdr.FifoSize); | |
1602 | } | |
1603 | else if (rt & 0x80) { | |
dfd4f48e | 1604 | switch (cdr.Mode & (MODE_SIZE_2328|MODE_SIZE_2340)) { |
9f8b032d | 1605 | case MODE_SIZE_2328: |
ef79bbde | 1606 | case 0x00: |
6cbdadb3 | 1607 | cdr.FifoOffset = 12; |
e411faef | 1608 | cdr.FifoSize = 2048 + 12; |
ef79bbde | 1609 | break; |
9f8b032d | 1610 | |
1611 | case MODE_SIZE_2340: | |
ef79bbde | 1612 | default: |
6cbdadb3 | 1613 | cdr.FifoOffset = 0; |
e411faef | 1614 | cdr.FifoSize = 2340; |
ef79bbde P |
1615 | break; |
1616 | } | |
1617 | } | |
e411faef | 1618 | else if (!(rt & 0xc0)) |
1619 | cdr.FifoOffset = DATA_SIZE; // fifo empty | |
ef79bbde P |
1620 | } |
1621 | ||
1622 | void psxDma3(u32 madr, u32 bcr, u32 chcr) { | |
d01bb904 | 1623 | u32 cdsize, max_words; |
c7071c43 | 1624 | int size; |
ef79bbde P |
1625 | u8 *ptr; |
1626 | ||
4d74a45a | 1627 | #if 0 |
1628 | CDR_LOG_I("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x", chcr, madr, bcr); | |
1629 | if (cdr.FifoOffset == 0) { | |
1630 | ptr = cdr.Transfer; | |
1631 | SysPrintf(" %02x:%02x:%02x", ptr[0], ptr[1], ptr[2]); | |
1632 | } | |
1633 | SysPrintf("\n"); | |
1634 | #endif | |
ef79bbde | 1635 | |
7b68d92c | 1636 | switch (chcr & 0x71000000) { |
ef79bbde | 1637 | case 0x11000000: |
d01bb904 | 1638 | ptr = getDmaRam(madr, &max_words); |
b012a437 | 1639 | if (ptr == INVALID_PTR) { |
6cbdadb3 | 1640 | CDR_LOG_I("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n"); |
ef79bbde P |
1641 | break; |
1642 | } | |
9f8b032d | 1643 | |
6cbdadb3 | 1644 | cdsize = (((bcr - 1) & 0xffff) + 1) * 4; |
1645 | ||
9f8b032d | 1646 | /* |
1647 | GS CDX: Enhancement CD crash | |
1648 | - Setloc 0:0:0 | |
1649 | - CdlPlay | |
1650 | - Spams DMA3 and gets buffer overrun | |
1651 | */ | |
6cbdadb3 | 1652 | size = DATA_SIZE - cdr.FifoOffset; |
c7071c43 | 1653 | if (size > cdsize) |
1654 | size = cdsize; | |
d01bb904 | 1655 | if (size > max_words * 4) |
1656 | size = max_words * 4; | |
c7071c43 | 1657 | if (size > 0) |
9f8b032d | 1658 | { |
6cbdadb3 | 1659 | memcpy(ptr, cdr.Transfer + cdr.FifoOffset, size); |
1660 | cdr.FifoOffset += size; | |
9f8b032d | 1661 | } |
ca37f771 | 1662 | if (size < cdsize) { |
7df2c03c | 1663 | CDR_LOG_I("cdrom: dma3 %d/%d\n", size, cdsize); |
ca37f771 | 1664 | memset(ptr + size, cdr.Transfer[0x920], cdsize - size); |
1665 | } | |
1666 | psxCpu->Clear(madr, cdsize / 4); | |
9f8b032d | 1667 | |
c6a249e3 | 1668 | set_event(PSXINT_CDRDMA, (cdsize / 4) * 24); |
7b68d92c | 1669 | |
1670 | HW_DMA3_CHCR &= SWAPu32(~0x10000000); | |
1671 | if (chcr & 0x100) { | |
58ebb94c | 1672 | HW_DMA3_MADR = SWAPu32(madr + cdsize); |
7b68d92c | 1673 | HW_DMA3_BCR &= SWAPu32(0xffff0000); |
9f8b032d | 1674 | } |
7b68d92c | 1675 | else { |
fc4803bd | 1676 | // halted |
7b68d92c | 1677 | psxRegs.cycle += (cdsize/4) * 24 - 20; |
9f8b032d | 1678 | } |
1679 | return; | |
1680 | ||
ef79bbde | 1681 | default: |
7df2c03c | 1682 | CDR_LOG_I("psxDma3() Log: Unknown cddma %x\n", chcr); |
ef79bbde P |
1683 | break; |
1684 | } | |
1685 | ||
1686 | HW_DMA3_CHCR &= SWAP32(~0x01000000); | |
1687 | DMA_INTERRUPT(3); | |
1688 | } | |
1689 | ||
28eea6ac | 1690 | void cdrDmaInterrupt(void) |
9f8b032d | 1691 | { |
ad418c19 | 1692 | if (HW_DMA3_CHCR & SWAP32(0x01000000)) |
1693 | { | |
1694 | HW_DMA3_CHCR &= SWAP32(~0x01000000); | |
1695 | DMA_INTERRUPT(3); | |
1696 | } | |
9f8b032d | 1697 | } |
1698 | ||
fffad32e | 1699 | static void getCdInfo(void) |
1700 | { | |
1701 | u8 tmp; | |
1702 | ||
1703 | CDR_getTN(cdr.ResultTN); | |
1704 | CDR_getTD(0, cdr.SetSectorEnd); | |
1705 | tmp = cdr.SetSectorEnd[0]; | |
1706 | cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2]; | |
1707 | cdr.SetSectorEnd[2] = tmp; | |
1708 | } | |
1709 | ||
ef79bbde P |
1710 | void cdrReset() { |
1711 | memset(&cdr, 0, sizeof(cdr)); | |
1712 | cdr.CurTrack = 1; | |
78ce9be9 | 1713 | cdr.FilterFile = 0; |
1714 | cdr.FilterChannel = 0; | |
a2d3ccb8 | 1715 | cdr.Reg2 = 0x1f; |
1716 | cdr.Stat = NoIntr; | |
6cbdadb3 | 1717 | cdr.FifoOffset = DATA_SIZE; // fifo empty |
b7f50ee7 | 1718 | |
1719 | CDR_getStatus(&stat); | |
1720 | if (stat.Status & STATUS_SHELLOPEN) { | |
1721 | cdr.DriveState = DRIVESTATE_LID_OPEN; | |
1722 | cdr.StatP = STATUS_SHELLOPEN; | |
1723 | } | |
1724 | else if (CdromId[0] == '\0') { | |
b4638ad9 | 1725 | cdr.DriveState = DRIVESTATE_STOPPED; |
1726 | cdr.StatP = 0; | |
1727 | } | |
1728 | else { | |
1729 | cdr.DriveState = DRIVESTATE_STANDBY; | |
1730 | cdr.StatP = STATUS_ROTATING; | |
1731 | } | |
2e88c317 | 1732 | |
056d6759 | 1733 | // BIOS player - default values |
53598a71 | 1734 | cdr.AttenuatorLeftToLeft = 0x80; |
1735 | cdr.AttenuatorLeftToRight = 0x00; | |
1736 | cdr.AttenuatorRightToLeft = 0x00; | |
1737 | cdr.AttenuatorRightToRight = 0x80; | |
fffad32e | 1738 | |
1739 | getCdInfo(); | |
ef79bbde P |
1740 | } |
1741 | ||
496d88d4 | 1742 | int cdrFreeze(void *f, int Mode) { |
8e1040b6 | 1743 | u32 tmp; |
fffad32e | 1744 | u8 tmpp[3]; |
ef79bbde | 1745 | |
fffad32e | 1746 | if (Mode == 0 && !Config.Cdda) |
1747 | CDR_stop(); | |
9f8b032d | 1748 | |
55b8460a | 1749 | cdr.freeze_ver = 0x63647202; |
9f8b032d | 1750 | gzfreeze(&cdr, sizeof(cdr)); |
1751 | ||
94c118c3 | 1752 | if (Mode == 1) { |
1753 | cdr.ParamP = cdr.ParamC; | |
6cbdadb3 | 1754 | tmp = cdr.FifoOffset; |
94c118c3 | 1755 | } |
ef79bbde P |
1756 | |
1757 | gzfreeze(&tmp, sizeof(tmp)); | |
1758 | ||
42f3c512 | 1759 | if (Mode == 0) { |
fffad32e | 1760 | getCdInfo(); |
1761 | ||
ca37f771 | 1762 | cdr.FifoOffset = tmp < DATA_SIZE ? tmp : DATA_SIZE; |
dfd4f48e | 1763 | cdr.FifoSize = (cdr.Mode & MODE_SIZE_2340) ? 2340 : 2048 + 12; |
0eacae49 | 1764 | if (cdr.SubqForwardSectors > SUBQ_FORWARD_SECTORS) |
1765 | cdr.SubqForwardSectors = SUBQ_FORWARD_SECTORS; | |
ef79bbde | 1766 | |
fffad32e | 1767 | // read right sub data |
0204c39a DS |
1768 | tmpp[0] = btoi(cdr.Prev[0]); |
1769 | tmpp[1] = btoi(cdr.Prev[1]); | |
1770 | tmpp[2] = btoi(cdr.Prev[2]); | |
fffad32e | 1771 | cdr.Prev[0]++; |
73b29eeb | 1772 | ReadTrack(tmpp); |
fffad32e | 1773 | |
1774 | if (cdr.Play) { | |
55b8460a | 1775 | if (cdr.freeze_ver < 0x63647202) |
1776 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 3); | |
1777 | ||
fffad32e | 1778 | Find_CurTrack(cdr.SetSectorPlay); |
1779 | if (!Config.Cdda) | |
2e88c317 | 1780 | CDR_play(cdr.SetSectorPlay); |
fffad32e | 1781 | } |
c69642c8 | 1782 | |
1783 | if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) { | |
1784 | // old versions did not latch Reg2, have to fixup.. | |
1785 | if (cdr.Reg2 == 0) { | |
1786 | SysPrintf("cdrom: fixing up old savestate\n"); | |
1787 | cdr.Reg2 = 7; | |
1788 | } | |
0f2dee0f | 1789 | // also did not save Attenuator.. |
1790 | if ((cdr.AttenuatorLeftToLeft | cdr.AttenuatorLeftToRight | |
1791 | | cdr.AttenuatorRightToLeft | cdr.AttenuatorRightToRight) == 0) | |
1792 | { | |
1793 | cdr.AttenuatorLeftToLeft = cdr.AttenuatorRightToRight = 0x80; | |
1794 | } | |
c69642c8 | 1795 | } |
42f3c512 | 1796 | } |
1797 | ||
ef79bbde P |
1798 | return 0; |
1799 | } | |
9f8b032d | 1800 | |
28eea6ac | 1801 | void LidInterrupt(void) { |
fffad32e | 1802 | getCdInfo(); |
80f91a20 | 1803 | cdrLidSeekInterrupt(); |
9f8b032d | 1804 | } |