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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 | ||
24 | #include "cdrom.h" | |
25 | #include "ppf.h" | |
9f8b032d | 26 | #include "psxdma.h" |
ef79bbde | 27 | |
8b380e97 | 28 | /* logging */ |
29 | #if 0 | |
30 | #define CDR_LOG SysPrintf | |
31 | #else | |
32 | #define CDR_LOG(...) | |
33 | #endif | |
34 | #if 0 | |
35 | #define CDR_LOG_I SysPrintf | |
36 | #else | |
37 | #define CDR_LOG_I(...) | |
38 | #endif | |
39 | #if 0 | |
40 | #define CDR_LOG_IO SysPrintf | |
41 | #else | |
42 | #define CDR_LOG_IO(...) | |
43 | #endif | |
44 | //#define CDR_LOG_CMD_IRQ | |
45 | ||
ef79bbde | 46 | cdrStruct cdr; |
8e1040b6 | 47 | static unsigned char *pTransfer; |
ef79bbde P |
48 | |
49 | /* CD-ROM magic numbers */ | |
50 | #define CdlSync 0 | |
51 | #define CdlNop 1 | |
52 | #define CdlSetloc 2 | |
53 | #define CdlPlay 3 | |
54 | #define CdlForward 4 | |
55 | #define CdlBackward 5 | |
56 | #define CdlReadN 6 | |
57 | #define CdlStandby 7 | |
58 | #define CdlStop 8 | |
59 | #define CdlPause 9 | |
60 | #define CdlInit 10 | |
61 | #define CdlMute 11 | |
62 | #define CdlDemute 12 | |
63 | #define CdlSetfilter 13 | |
64 | #define CdlSetmode 14 | |
65 | #define CdlGetmode 15 | |
66 | #define CdlGetlocL 16 | |
67 | #define CdlGetlocP 17 | |
68 | #define CdlReadT 18 | |
69 | #define CdlGetTN 19 | |
70 | #define CdlGetTD 20 | |
71 | #define CdlSeekL 21 | |
72 | #define CdlSeekP 22 | |
73 | #define CdlSetclock 23 | |
74 | #define CdlGetclock 24 | |
75 | #define CdlTest 25 | |
76 | #define CdlID 26 | |
77 | #define CdlReadS 27 | |
78 | #define CdlReset 28 | |
e4268a49 | 79 | #define CdlGetQ 29 |
ef79bbde P |
80 | #define CdlReadToc 30 |
81 | ||
ef79bbde P |
82 | char *CmdName[0x100]= { |
83 | "CdlSync", "CdlNop", "CdlSetloc", "CdlPlay", | |
84 | "CdlForward", "CdlBackward", "CdlReadN", "CdlStandby", | |
85 | "CdlStop", "CdlPause", "CdlInit", "CdlMute", | |
86 | "CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetmode", | |
87 | "CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN", | |
88 | "CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock", | |
89 | "CdlGetclock", "CdlTest", "CdlID", "CdlReadS", | |
90 | "CdlReset", NULL, "CDlReadToc", NULL | |
91 | }; | |
92 | ||
93 | unsigned char Test04[] = { 0 }; | |
94 | unsigned char Test05[] = { 0 }; | |
95 | unsigned char Test20[] = { 0x98, 0x06, 0x10, 0xC3 }; | |
96 | unsigned char Test22[] = { 0x66, 0x6F, 0x72, 0x20, 0x45, 0x75, 0x72, 0x6F }; | |
97 | unsigned char Test23[] = { 0x43, 0x58, 0x44, 0x32, 0x39 ,0x34, 0x30, 0x51 }; | |
98 | ||
9f8b032d | 99 | // cdr.Stat: |
100 | #define NoIntr 0 | |
101 | #define DataReady 1 | |
102 | #define Complete 2 | |
103 | #define Acknowledge 3 | |
104 | #define DataEnd 4 | |
105 | #define DiskError 5 | |
106 | ||
107 | /* Modes flags */ | |
108 | #define MODE_SPEED (1<<7) // 0x80 | |
109 | #define MODE_STRSND (1<<6) // 0x40 ADPCM on/off | |
110 | #define MODE_SIZE_2340 (1<<5) // 0x20 | |
111 | #define MODE_SIZE_2328 (1<<4) // 0x10 | |
cd0c9f5b | 112 | #define MODE_SIZE_2048 (0<<4) // 0x00 |
9f8b032d | 113 | #define MODE_SF (1<<3) // 0x08 channel on/off |
114 | #define MODE_REPORT (1<<2) // 0x04 | |
115 | #define MODE_AUTOPAUSE (1<<1) // 0x02 | |
116 | #define MODE_CDDA (1<<0) // 0x01 | |
117 | ||
118 | /* Status flags */ | |
119 | #define STATUS_PLAY (1<<7) // 0x80 | |
120 | #define STATUS_SEEK (1<<6) // 0x40 | |
121 | #define STATUS_READ (1<<5) // 0x20 | |
122 | #define STATUS_SHELLOPEN (1<<4) // 0x10 | |
123 | #define STATUS_UNKNOWN3 (1<<3) // 0x08 | |
124 | #define STATUS_UNKNOWN2 (1<<2) // 0x04 | |
125 | #define STATUS_ROTATING (1<<1) // 0x02 | |
126 | #define STATUS_ERROR (1<<0) // 0x01 | |
127 | ||
e4268a49 | 128 | /* Errors */ |
129 | #define ERROR_NOT_READY (1<<7) // 0x80 | |
130 | #define ERROR_INVALIDCMD (1<<6) // 0x40 | |
131 | #define ERROR_INVALIDARG (1<<5) // 0x20 | |
9f8b032d | 132 | |
ef79bbde P |
133 | // 1x = 75 sectors per second |
134 | // PSXCLK = 1 sec in the ps | |
135 | // so (PSXCLK / 75) = cdr read time (linuzappz) | |
136 | #define cdReadTime (PSXCLK / 75) | |
137 | ||
80f91a20 | 138 | enum drive_state { |
139 | DRIVESTATE_STANDBY = 0, | |
140 | DRIVESTATE_LID_OPEN, | |
141 | DRIVESTATE_RESCAN_CD, | |
142 | DRIVESTATE_PREPARE_CD, | |
e4268a49 | 143 | DRIVESTATE_STOPPED, |
80f91a20 | 144 | }; |
145 | ||
39df67df | 146 | // for cdr.Seeked |
147 | enum seeked_state { | |
148 | SEEK_PENDING = 0, | |
149 | SEEK_DONE = 1, | |
39df67df | 150 | }; |
151 | ||
ef79bbde | 152 | static struct CdrStat stat; |
ef79bbde | 153 | |
fffad32e | 154 | static unsigned int msf2sec(const u8 *msf) { |
9f8b032d | 155 | return ((msf[0] * 60 + msf[1]) * 75) + msf[2]; |
156 | } | |
157 | ||
fffad32e | 158 | // for that weird psemu API.. |
159 | static unsigned int fsm2sec(const u8 *msf) { | |
160 | return ((msf[2] * 60 + msf[1]) * 75) + msf[0]; | |
161 | } | |
162 | ||
305c8c93 | 163 | static void sec2msf(unsigned int s, u8 *msf) { |
9f8b032d | 164 | msf[0] = s / 75 / 60; |
165 | s = s - msf[0] * 75 * 60; | |
166 | msf[1] = s / 75; | |
167 | s = s - msf[1] * 75; | |
168 | msf[2] = s; | |
169 | } | |
170 | ||
39df67df | 171 | // cdrInterrupt |
ef79bbde | 172 | #define CDR_INT(eCycle) { \ |
d28b54b1 | 173 | psxRegs.interrupt |= (1 << PSXINT_CDR); \ |
174 | psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \ | |
175 | psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \ | |
176 | new_dyna_set_event(PSXINT_CDR, eCycle); \ | |
ae602c19 | 177 | } |
ef79bbde | 178 | |
39df67df | 179 | // cdrReadInterrupt |
ef79bbde | 180 | #define CDREAD_INT(eCycle) { \ |
d28b54b1 | 181 | psxRegs.interrupt |= (1 << PSXINT_CDREAD); \ |
182 | psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \ | |
183 | psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \ | |
184 | new_dyna_set_event(PSXINT_CDREAD, eCycle); \ | |
ae602c19 | 185 | } |
ef79bbde | 186 | |
39df67df | 187 | // cdrLidSeekInterrupt |
9f8b032d | 188 | #define CDRLID_INT(eCycle) { \ |
189 | psxRegs.interrupt |= (1 << PSXINT_CDRLID); \ | |
190 | psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \ | |
191 | psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \ | |
192 | new_dyna_set_event(PSXINT_CDRLID, eCycle); \ | |
193 | } | |
194 | ||
39df67df | 195 | // cdrPlayInterrupt |
196 | #define CDRMISC_INT(eCycle) { \ | |
7f457614 | 197 | psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \ |
198 | psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \ | |
199 | psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \ | |
200 | new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \ | |
201 | } | |
202 | ||
ef79bbde P |
203 | #define StopReading() { \ |
204 | if (cdr.Reading) { \ | |
205 | cdr.Reading = 0; \ | |
d28b54b1 | 206 | psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \ |
ef79bbde | 207 | } \ |
9f8b032d | 208 | cdr.StatP &= ~STATUS_READ;\ |
ef79bbde P |
209 | } |
210 | ||
211 | #define StopCdda() { \ | |
212 | if (cdr.Play) { \ | |
213 | if (!Config.Cdda) CDR_stop(); \ | |
9f8b032d | 214 | cdr.StatP &= ~STATUS_PLAY; \ |
ef79bbde | 215 | cdr.Play = FALSE; \ |
9f8b032d | 216 | cdr.FastForward = 0; \ |
217 | cdr.FastBackward = 0; \ | |
218 | /*SPU_registerCallback( SPUirq );*/ \ | |
ef79bbde P |
219 | } \ |
220 | } | |
221 | ||
222 | #define SetResultSize(size) { \ | |
94c118c3 | 223 | cdr.ResultP = 0; \ |
ef79bbde P |
224 | cdr.ResultC = size; \ |
225 | cdr.ResultReady = 1; \ | |
226 | } | |
227 | ||
94c118c3 | 228 | static void setIrq(void) |
229 | { | |
230 | if (cdr.Stat & cdr.Reg2) | |
231 | psxHu32ref(0x1070) |= SWAP32((u32)0x4); | |
232 | } | |
9f8b032d | 233 | |
80f91a20 | 234 | // timing used in this function was taken from tests on real hardware |
235 | // (yes it's slow, but you probably don't want to modify it) | |
9f8b032d | 236 | void cdrLidSeekInterrupt() |
237 | { | |
80f91a20 | 238 | switch (cdr.DriveState) { |
239 | default: | |
240 | case DRIVESTATE_STANDBY: | |
9f8b032d | 241 | cdr.StatP &= ~STATUS_SEEK; |
242 | ||
80f91a20 | 243 | if (CDR_getStatus(&stat) == -1) |
244 | return; | |
9f8b032d | 245 | |
80f91a20 | 246 | if (stat.Status & STATUS_SHELLOPEN) |
9f8b032d | 247 | { |
80f91a20 | 248 | StopCdda(); |
249 | cdr.DriveState = DRIVESTATE_LID_OPEN; | |
250 | CDRLID_INT(0x800); | |
251 | } | |
252 | break; | |
9f8b032d | 253 | |
80f91a20 | 254 | case DRIVESTATE_LID_OPEN: |
255 | if (CDR_getStatus(&stat) == -1) | |
256 | stat.Status &= ~STATUS_SHELLOPEN; | |
9f8b032d | 257 | |
80f91a20 | 258 | // 02, 12, 10 |
259 | if (!(cdr.StatP & STATUS_SHELLOPEN)) { | |
260 | StopReading(); | |
261 | cdr.StatP |= STATUS_SHELLOPEN; | |
9f8b032d | 262 | |
80f91a20 | 263 | // could generate error irq here, but real hardware |
264 | // only sometimes does that | |
265 | // (not done when lots of commands are sent?) | |
9f8b032d | 266 | |
80f91a20 | 267 | CDRLID_INT(cdReadTime * 30); |
268 | break; | |
9f8b032d | 269 | } |
80f91a20 | 270 | else if (cdr.StatP & STATUS_ROTATING) { |
271 | cdr.StatP &= ~STATUS_ROTATING; | |
272 | } | |
273 | else if (!(stat.Status & STATUS_SHELLOPEN)) { | |
274 | // closed now | |
275 | CheckCdrom(); | |
9f8b032d | 276 | |
80f91a20 | 277 | // cdr.StatP STATUS_SHELLOPEN is "sticky" |
278 | // and is only cleared by CdlNop | |
9f8b032d | 279 | |
80f91a20 | 280 | cdr.DriveState = DRIVESTATE_RESCAN_CD; |
281 | CDRLID_INT(cdReadTime * 105); | |
282 | break; | |
283 | } | |
9f8b032d | 284 | |
80f91a20 | 285 | // recheck for close |
286 | CDRLID_INT(cdReadTime * 3); | |
287 | break; | |
9f8b032d | 288 | |
80f91a20 | 289 | case DRIVESTATE_RESCAN_CD: |
290 | cdr.StatP |= STATUS_ROTATING; | |
291 | cdr.DriveState = DRIVESTATE_PREPARE_CD; | |
9f8b032d | 292 | |
80f91a20 | 293 | // this is very long on real hardware, over 6 seconds |
294 | // make it a bit faster here... | |
295 | CDRLID_INT(cdReadTime * 150); | |
296 | break; | |
9f8b032d | 297 | |
80f91a20 | 298 | case DRIVESTATE_PREPARE_CD: |
299 | cdr.StatP |= STATUS_SEEK; | |
9f8b032d | 300 | |
80f91a20 | 301 | cdr.DriveState = DRIVESTATE_STANDBY; |
302 | CDRLID_INT(cdReadTime * 26); | |
303 | break; | |
9f8b032d | 304 | } |
305 | } | |
306 | ||
fffad32e | 307 | static void Find_CurTrack(const u8 *time) |
308 | { | |
309 | int current, sect; | |
9f8b032d | 310 | |
fffad32e | 311 | current = msf2sec(time); |
9f8b032d | 312 | |
fffad32e | 313 | for (cdr.CurTrack = 1; cdr.CurTrack < cdr.ResultTN[1]; cdr.CurTrack++) { |
314 | CDR_getTD(cdr.CurTrack + 1, cdr.ResultTD); | |
315 | sect = fsm2sec(cdr.ResultTD); | |
316 | if (sect - current >= 150) | |
9f8b032d | 317 | break; |
9f8b032d | 318 | } |
319 | } | |
320 | ||
73b29eeb | 321 | static void generate_subq(const u8 *time) |
322 | { | |
323 | unsigned char start[3], next[3]; | |
324 | unsigned int this_s, start_s, next_s, pregap; | |
325 | int relative_s; | |
326 | ||
327 | CDR_getTD(cdr.CurTrack, start); | |
328 | if (cdr.CurTrack + 1 <= cdr.ResultTN[1]) { | |
329 | pregap = 150; | |
330 | CDR_getTD(cdr.CurTrack + 1, next); | |
331 | } | |
332 | else { | |
333 | // last track - cd size | |
334 | pregap = 0; | |
335 | next[0] = cdr.SetSectorEnd[2]; | |
336 | next[1] = cdr.SetSectorEnd[1]; | |
337 | next[2] = cdr.SetSectorEnd[0]; | |
338 | } | |
339 | ||
340 | this_s = msf2sec(time); | |
341 | start_s = fsm2sec(start); | |
342 | next_s = fsm2sec(next); | |
343 | ||
344 | cdr.TrackChanged = FALSE; | |
345 | ||
346 | if (next_s - this_s < pregap) { | |
347 | cdr.TrackChanged = TRUE; | |
348 | cdr.CurTrack++; | |
349 | start_s = next_s; | |
350 | } | |
351 | ||
352 | cdr.subq.Index = 1; | |
353 | ||
354 | relative_s = this_s - start_s; | |
355 | if (relative_s < 0) { | |
356 | cdr.subq.Index = 0; | |
357 | relative_s = -relative_s; | |
358 | } | |
359 | sec2msf(relative_s, cdr.subq.Relative); | |
360 | ||
361 | cdr.subq.Track = itob(cdr.CurTrack); | |
362 | cdr.subq.Relative[0] = itob(cdr.subq.Relative[0]); | |
363 | cdr.subq.Relative[1] = itob(cdr.subq.Relative[1]); | |
364 | cdr.subq.Relative[2] = itob(cdr.subq.Relative[2]); | |
365 | cdr.subq.Absolute[0] = itob(time[0]); | |
366 | cdr.subq.Absolute[1] = itob(time[1]); | |
367 | cdr.subq.Absolute[2] = itob(time[2]); | |
368 | } | |
369 | ||
370 | static void ReadTrack(const u8 *time) { | |
fffad32e | 371 | unsigned char tmp[3]; |
372 | struct SubQ *subq; | |
373 | u16 crc; | |
ef79bbde | 374 | |
fffad32e | 375 | tmp[0] = itob(time[0]); |
376 | tmp[1] = itob(time[1]); | |
377 | tmp[2] = itob(time[2]); | |
ef79bbde | 378 | |
fffad32e | 379 | if (memcmp(cdr.Prev, tmp, 3) == 0) |
380 | return; | |
39df67df | 381 | |
fffad32e | 382 | CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]); |
9f8b032d | 383 | |
fffad32e | 384 | cdr.RErr = CDR_readTrack(tmp); |
385 | memcpy(cdr.Prev, tmp, 3); | |
9f8b032d | 386 | |
fffad32e | 387 | if (CheckSBI(time)) |
388 | return; | |
9f8b032d | 389 | |
fffad32e | 390 | subq = (struct SubQ *)CDR_getBufferSub(); |
73b29eeb | 391 | if (subq != NULL && cdr.CurTrack == 1) { |
fffad32e | 392 | crc = calcCrc((u8 *)subq + 12, 10); |
73b29eeb | 393 | if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) { |
fffad32e | 394 | cdr.subq.Track = subq->TrackNumber; |
395 | cdr.subq.Index = subq->IndexNumber; | |
396 | memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3); | |
397 | memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3); | |
fffad32e | 398 | } |
92ca1ba6 | 399 | else { |
73b29eeb | 400 | CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n", |
92ca1ba6 | 401 | tmp[0], tmp[1], tmp[2]); |
402 | } | |
9f8b032d | 403 | } |
fffad32e | 404 | else { |
73b29eeb | 405 | generate_subq(time); |
9f8b032d | 406 | } |
9f8b032d | 407 | |
fffad32e | 408 | CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n", |
409 | cdr.subq.Track, cdr.subq.Index, | |
410 | cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2], | |
411 | cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]); | |
412 | } | |
9f8b032d | 413 | |
e4268a49 | 414 | static void AddIrqQueue(unsigned short irq, unsigned long ecycle) { |
415 | if (cdr.Irq != 0) { | |
416 | if (irq == cdr.Irq || irq + 0x100 == cdr.Irq) { | |
417 | cdr.IrqRepeated = 1; | |
418 | CDR_INT(ecycle); | |
419 | return; | |
420 | } | |
421 | ||
fffad32e | 422 | CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq); |
e4268a49 | 423 | } |
9f8b032d | 424 | |
fffad32e | 425 | cdr.Irq = irq; |
426 | cdr.eCycle = ecycle; | |
9f8b032d | 427 | |
fffad32e | 428 | CDR_INT(ecycle); |
ef79bbde P |
429 | } |
430 | ||
7f457614 | 431 | static void cdrPlayInterrupt_Autopause() |
432 | { | |
fffad32e | 433 | if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) { |
7f457614 | 434 | CDR_LOG( "CDDA STOP\n" ); |
7f457614 | 435 | |
436 | // Magic the Gathering | |
437 | // - looping territory cdda | |
438 | ||
439 | // ...? | |
440 | //cdr.ResultReady = 1; | |
441 | //cdr.Stat = DataReady; | |
442 | cdr.Stat = DataEnd; | |
94c118c3 | 443 | setIrq(); |
7f457614 | 444 | |
445 | StopCdda(); | |
446 | } | |
a02ee86f | 447 | else if (cdr.Mode & MODE_REPORT) { |
7f457614 | 448 | |
fffad32e | 449 | cdr.Result[0] = cdr.StatP; |
450 | cdr.Result[1] = cdr.subq.Track; | |
451 | cdr.Result[2] = cdr.subq.Index; | |
9b470ab7 | 452 | |
fffad32e | 453 | if (cdr.subq.Absolute[2] & 0x10) { |
454 | cdr.Result[3] = cdr.subq.Relative[0]; | |
455 | cdr.Result[4] = cdr.subq.Relative[1] | 0x80; | |
456 | cdr.Result[5] = cdr.subq.Relative[2]; | |
7f457614 | 457 | } |
fffad32e | 458 | else { |
459 | cdr.Result[3] = cdr.subq.Absolute[0]; | |
460 | cdr.Result[4] = cdr.subq.Absolute[1]; | |
461 | cdr.Result[5] = cdr.subq.Absolute[2]; | |
462 | } | |
463 | ||
464 | cdr.Result[6] = 0; | |
465 | cdr.Result[7] = 0; | |
7f457614 | 466 | |
467 | // Rayman: Logo freeze (resultready + dataready) | |
468 | cdr.ResultReady = 1; | |
469 | cdr.Stat = DataReady; | |
470 | ||
471 | SetResultSize(8); | |
94c118c3 | 472 | setIrq(); |
7f457614 | 473 | } |
474 | } | |
475 | ||
39df67df | 476 | // also handles seek |
7f457614 | 477 | void cdrPlayInterrupt() |
478 | { | |
892bd7d4 | 479 | if (cdr.Seeked == SEEK_PENDING) { |
e7e33ef2 | 480 | if (cdr.Stat) { |
8b380e97 | 481 | CDR_LOG_I("cdrom: seek stat hack\n"); |
e7e33ef2 | 482 | CDRMISC_INT(0x1000); |
483 | return; | |
484 | } | |
39df67df | 485 | SetResultSize(1); |
486 | cdr.StatP |= STATUS_ROTATING; | |
487 | cdr.StatP &= ~STATUS_SEEK; | |
488 | cdr.Result[0] = cdr.StatP; | |
892bd7d4 | 489 | cdr.Seeked = SEEK_DONE; |
a34a2445 | 490 | if (cdr.Irq == 0) { |
39df67df | 491 | cdr.Stat = Complete; |
94c118c3 | 492 | setIrq(); |
39df67df | 493 | } |
494 | ||
892bd7d4 | 495 | memcpy(cdr.SetSectorPlay, cdr.SetSector, 4); |
fffad32e | 496 | Find_CurTrack(cdr.SetSectorPlay); |
73b29eeb | 497 | ReadTrack(cdr.SetSectorPlay); |
fffad32e | 498 | cdr.TrackChanged = FALSE; |
39df67df | 499 | } |
500 | ||
501 | if (!cdr.Play) return; | |
7f457614 | 502 | |
7f457614 | 503 | CDR_LOG( "CDDA - %d:%d:%d\n", |
504 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] ); | |
8b380e97 | 505 | |
fffad32e | 506 | if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) { |
507 | StopCdda(); | |
508 | cdr.TrackChanged = TRUE; | |
509 | } | |
7f457614 | 510 | |
892bd7d4 | 511 | if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT))) |
7f457614 | 512 | cdrPlayInterrupt_Autopause(); |
513 | ||
fffad32e | 514 | if (!cdr.Play) return; |
515 | ||
7f457614 | 516 | cdr.SetSectorPlay[2]++; |
517 | if (cdr.SetSectorPlay[2] == 75) { | |
518 | cdr.SetSectorPlay[2] = 0; | |
519 | cdr.SetSectorPlay[1]++; | |
520 | if (cdr.SetSectorPlay[1] == 60) { | |
521 | cdr.SetSectorPlay[1] = 0; | |
522 | cdr.SetSectorPlay[0]++; | |
523 | } | |
524 | } | |
525 | ||
fffad32e | 526 | CDRMISC_INT(cdReadTime); |
527 | ||
528 | // update for CdlGetlocP/autopause | |
73b29eeb | 529 | generate_subq(cdr.SetSectorPlay); |
7f457614 | 530 | } |
531 | ||
ef79bbde | 532 | void cdrInterrupt() { |
e4268a49 | 533 | u16 Irq = cdr.Irq; |
534 | int no_busy_error = 0; | |
535 | int start_rotating = 0; | |
536 | int error = 0; | |
537 | int delay; | |
ef79bbde | 538 | |
9f8b032d | 539 | // Reschedule IRQ |
ef79bbde | 540 | if (cdr.Stat) { |
8b380e97 | 541 | CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat); |
e7e33ef2 | 542 | CDR_INT(0x1000); |
ef79bbde P |
543 | return; |
544 | } | |
545 | ||
ef79bbde P |
546 | cdr.Ctrl &= ~0x80; |
547 | ||
e4268a49 | 548 | // default response |
549 | SetResultSize(1); | |
550 | cdr.Result[0] = cdr.StatP; | |
551 | cdr.Stat = Acknowledge; | |
552 | ||
553 | if (cdr.IrqRepeated) { | |
554 | cdr.IrqRepeated = 0; | |
555 | if (cdr.eCycle > psxRegs.cycle) { | |
556 | CDR_INT(cdr.eCycle); | |
557 | goto finish; | |
558 | } | |
559 | } | |
560 | ||
561 | cdr.Irq = 0; | |
562 | ||
ef79bbde P |
563 | switch (Irq) { |
564 | case CdlSync: | |
e4268a49 | 565 | // TOOD: sometimes/always return error? |
ef79bbde P |
566 | break; |
567 | ||
568 | case CdlNop: | |
80f91a20 | 569 | if (cdr.DriveState != DRIVESTATE_LID_OPEN) |
570 | cdr.StatP &= ~STATUS_SHELLOPEN; | |
e4268a49 | 571 | no_busy_error = 1; |
ef79bbde P |
572 | break; |
573 | ||
574 | case CdlSetloc: | |
ef79bbde P |
575 | break; |
576 | ||
577 | case CdlPlay: | |
030bd76a | 578 | StopCdda(); |
39df67df | 579 | if (cdr.Seeked == SEEK_PENDING) { |
580 | // XXX: wrong, should seek instead.. | |
9f8b032d | 581 | memcpy( cdr.SetSectorPlay, cdr.SetSector, 4 ); |
39df67df | 582 | cdr.Seeked = SEEK_DONE; |
9f8b032d | 583 | } |
584 | ||
2d5ca6c0 | 585 | // BIOS CD Player |
586 | // - Pause player, hit Track 01/02/../xx (Setloc issued!!) | |
587 | ||
588 | if (cdr.ParamC == 0 || cdr.Param[0] == 0) { | |
589 | CDR_LOG("PLAY Resume @ %d:%d:%d\n", | |
590 | cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]); | |
591 | } | |
592 | else | |
593 | { | |
594 | int track = btoi( cdr.Param[0] ); | |
595 | ||
596 | if (track <= cdr.ResultTN[1]) | |
597 | cdr.CurTrack = track; | |
598 | ||
599 | CDR_LOG("PLAY track %d\n", cdr.CurTrack); | |
600 | ||
601 | if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) { | |
602 | cdr.SetSectorPlay[0] = cdr.ResultTD[2]; | |
603 | cdr.SetSectorPlay[1] = cdr.ResultTD[1]; | |
604 | cdr.SetSectorPlay[2] = cdr.ResultTD[0]; | |
605 | } | |
606 | } | |
607 | ||
9f8b032d | 608 | /* |
609 | Rayman: detect track changes | |
610 | - fixes logo freeze | |
611 | ||
612 | Twisted Metal 2: skip PREGAP + starting accurate SubQ | |
613 | - plays tracks without retry play | |
614 | ||
615 | Wild 9: skip PREGAP + starting accurate SubQ | |
616 | - plays tracks without retry play | |
617 | */ | |
fffad32e | 618 | Find_CurTrack(cdr.SetSectorPlay); |
73b29eeb | 619 | ReadTrack(cdr.SetSectorPlay); |
fffad32e | 620 | cdr.TrackChanged = FALSE; |
9f8b032d | 621 | |
2d5ca6c0 | 622 | if (!Config.Cdda) |
623 | CDR_play(cdr.SetSectorPlay); | |
9f8b032d | 624 | |
625 | // Vib Ribbon: gameplay checks flag | |
626 | cdr.StatP &= ~STATUS_SEEK; | |
ef79bbde | 627 | cdr.Result[0] = cdr.StatP; |
9f8b032d | 628 | |
629 | cdr.StatP |= STATUS_PLAY; | |
9f8b032d | 630 | |
631 | // BIOS player - set flag again | |
632 | cdr.Play = TRUE; | |
633 | ||
39df67df | 634 | CDRMISC_INT( cdReadTime ); |
e4268a49 | 635 | start_rotating = 1; |
ef79bbde P |
636 | break; |
637 | ||
9f8b032d | 638 | case CdlForward: |
e4268a49 | 639 | // TODO: error 80 if stopped |
9f8b032d | 640 | cdr.Stat = Complete; |
641 | ||
9f8b032d | 642 | // GameShark CD Player: Calls 2x + Play 2x |
643 | if( cdr.FastForward == 0 ) cdr.FastForward = 2; | |
644 | else cdr.FastForward++; | |
645 | ||
646 | cdr.FastBackward = 0; | |
ef79bbde P |
647 | break; |
648 | ||
9f8b032d | 649 | case CdlBackward: |
9f8b032d | 650 | cdr.Stat = Complete; |
651 | ||
9f8b032d | 652 | // GameShark CD Player: Calls 2x + Play 2x |
653 | if( cdr.FastBackward == 0 ) cdr.FastBackward = 2; | |
654 | else cdr.FastBackward++; | |
655 | ||
656 | cdr.FastForward = 0; | |
ef79bbde P |
657 | break; |
658 | ||
9f8b032d | 659 | case CdlStandby: |
e4268a49 | 660 | if (cdr.DriveState != DRIVESTATE_STOPPED) { |
661 | error = ERROR_INVALIDARG; | |
662 | goto set_error; | |
663 | } | |
664 | AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2); | |
665 | start_rotating = 1; | |
666 | break; | |
667 | ||
668 | case CdlStandby + 0x100: | |
ef79bbde P |
669 | cdr.Stat = Complete; |
670 | break; | |
671 | ||
672 | case CdlStop: | |
030bd76a | 673 | if (cdr.Play) { |
674 | // grab time for current track | |
675 | CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD); | |
676 | ||
677 | cdr.SetSectorPlay[0] = cdr.ResultTD[2]; | |
678 | cdr.SetSectorPlay[1] = cdr.ResultTD[1]; | |
679 | cdr.SetSectorPlay[2] = cdr.ResultTD[0]; | |
680 | } | |
681 | ||
682 | StopCdda(); | |
683 | StopReading(); | |
684 | ||
e4268a49 | 685 | delay = 0x800; |
686 | if (cdr.DriveState == DRIVESTATE_STANDBY) | |
687 | delay = cdReadTime * 30 / 2; | |
688 | ||
689 | cdr.DriveState = DRIVESTATE_STOPPED; | |
690 | AddIrqQueue(CdlStop + 0x100, delay); | |
691 | break; | |
692 | ||
693 | case CdlStop + 0x100: | |
9f8b032d | 694 | cdr.StatP &= ~STATUS_ROTATING; |
ef79bbde P |
695 | cdr.Result[0] = cdr.StatP; |
696 | cdr.Stat = Complete; | |
ef79bbde P |
697 | break; |
698 | ||
699 | case CdlPause: | |
12228917 | 700 | /* |
701 | Gundam Battle Assault 2: much slower (*) | |
702 | - Fixes boot, gameplay | |
703 | ||
704 | Hokuto no Ken 2: slower | |
705 | - Fixes intro + subtitles | |
706 | ||
707 | InuYasha - Feudal Fairy Tale: slower | |
708 | - Fixes battles | |
709 | */ | |
e4268a49 | 710 | AddIrqQueue(CdlPause + 0x100, cdReadTime * 3); |
ef79bbde P |
711 | cdr.Ctrl |= 0x80; |
712 | break; | |
713 | ||
e4268a49 | 714 | case CdlPause + 0x100: |
9f8b032d | 715 | cdr.StatP &= ~STATUS_READ; |
ef79bbde | 716 | cdr.Result[0] = cdr.StatP; |
9f8b032d | 717 | cdr.Stat = Complete; |
ef79bbde P |
718 | break; |
719 | ||
9f8b032d | 720 | case CdlInit: |
e4268a49 | 721 | AddIrqQueue(CdlInit + 0x100, cdReadTime * 6); |
722 | no_busy_error = 1; | |
723 | start_rotating = 1; | |
724 | break; | |
725 | ||
726 | case CdlInit + 0x100: | |
9f8b032d | 727 | cdr.Stat = Complete; |
ef79bbde P |
728 | break; |
729 | ||
9f8b032d | 730 | case CdlMute: |
030bd76a | 731 | cdr.Muted = TRUE; |
ef79bbde P |
732 | break; |
733 | ||
9f8b032d | 734 | case CdlDemute: |
030bd76a | 735 | cdr.Muted = FALSE; |
ef79bbde P |
736 | break; |
737 | ||
9f8b032d | 738 | case CdlSetfilter: |
030bd76a | 739 | cdr.File = cdr.Param[0]; |
740 | cdr.Channel = cdr.Param[1]; | |
9f8b032d | 741 | break; |
ef79bbde P |
742 | |
743 | case CdlSetmode: | |
e4268a49 | 744 | no_busy_error = 1; |
9f8b032d | 745 | break; |
ef79bbde | 746 | |
9f8b032d | 747 | case CdlGetmode: |
ef79bbde | 748 | SetResultSize(6); |
9f8b032d | 749 | cdr.Result[1] = cdr.Mode; |
750 | cdr.Result[2] = cdr.File; | |
751 | cdr.Result[3] = cdr.Channel; | |
752 | cdr.Result[4] = 0; | |
753 | cdr.Result[5] = 0; | |
e4268a49 | 754 | no_busy_error = 1; |
9f8b032d | 755 | break; |
ef79bbde | 756 | |
9f8b032d | 757 | case CdlGetlocL: |
ef79bbde | 758 | SetResultSize(8); |
e4268a49 | 759 | memcpy(cdr.Result, cdr.Transfer, 8); |
9f8b032d | 760 | break; |
ef79bbde P |
761 | |
762 | case CdlGetlocP: | |
fffad32e | 763 | SetResultSize(8); |
764 | memcpy(&cdr.Result, &cdr.subq, 8); | |
ef79bbde | 765 | |
892bd7d4 | 766 | if (!cdr.Play && !cdr.Reading) |
767 | cdr.Result[1] = 0; // HACK? | |
e4268a49 | 768 | break; |
892bd7d4 | 769 | |
e4268a49 | 770 | case CdlReadT: // SetSession? |
771 | // really long | |
772 | AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4); | |
773 | start_rotating = 1; | |
774 | break; | |
775 | ||
776 | case CdlReadT + 0x100: | |
777 | cdr.Stat = Complete; | |
ef79bbde P |
778 | break; |
779 | ||
9f8b032d | 780 | case CdlGetTN: |
ef79bbde | 781 | SetResultSize(3); |
9f8b032d | 782 | if (CDR_getTN(cdr.ResultTN) == -1) { |
ef79bbde | 783 | cdr.Stat = DiskError; |
9f8b032d | 784 | cdr.Result[0] |= STATUS_ERROR; |
785 | } else { | |
786 | cdr.Stat = Acknowledge; | |
787 | cdr.Result[1] = itob(cdr.ResultTN[0]); | |
788 | cdr.Result[2] = itob(cdr.ResultTN[1]); | |
789 | } | |
790 | break; | |
ef79bbde | 791 | |
9f8b032d | 792 | case CdlGetTD: |
ef79bbde P |
793 | cdr.Track = btoi(cdr.Param[0]); |
794 | SetResultSize(4); | |
ef79bbde P |
795 | if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) { |
796 | cdr.Stat = DiskError; | |
9f8b032d | 797 | cdr.Result[0] |= STATUS_ERROR; |
ef79bbde P |
798 | } else { |
799 | cdr.Stat = Acknowledge; | |
800 | cdr.Result[0] = cdr.StatP; | |
801 | cdr.Result[1] = itob(cdr.ResultTD[2]); | |
802 | cdr.Result[2] = itob(cdr.ResultTD[1]); | |
803 | cdr.Result[3] = itob(cdr.ResultTD[0]); | |
804 | } | |
805 | break; | |
806 | ||
9f8b032d | 807 | case CdlSeekL: |
39df67df | 808 | case CdlSeekP: |
030bd76a | 809 | StopCdda(); |
810 | StopReading(); | |
9f8b032d | 811 | cdr.StatP |= STATUS_SEEK; |
9f8b032d | 812 | |
813 | /* | |
814 | Crusaders of Might and Magic = 0.5x-4x | |
815 | - fix cutscene speech start | |
816 | ||
817 | Eggs of Steel = 2x-? | |
818 | - fix new game | |
819 | ||
820 | Medievil = ?-4x | |
821 | - fix cutscene speech | |
822 | ||
823 | Rockman X5 = 0.5-4x | |
824 | - fix capcom logo | |
825 | */ | |
39df67df | 826 | CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4); |
892bd7d4 | 827 | cdr.Seeked = SEEK_PENDING; |
e4268a49 | 828 | start_rotating = 1; |
ef79bbde P |
829 | break; |
830 | ||
831 | case CdlTest: | |
9f8b032d | 832 | switch (cdr.Param[0]) { |
833 | case 0x20: // System Controller ROM Version | |
ef79bbde P |
834 | SetResultSize(4); |
835 | memcpy(cdr.Result, Test20, 4); | |
836 | break; | |
837 | case 0x22: | |
838 | SetResultSize(8); | |
839 | memcpy(cdr.Result, Test22, 4); | |
840 | break; | |
841 | case 0x23: case 0x24: | |
842 | SetResultSize(8); | |
843 | memcpy(cdr.Result, Test23, 4); | |
844 | break; | |
9f8b032d | 845 | } |
e4268a49 | 846 | no_busy_error = 1; |
ef79bbde P |
847 | break; |
848 | ||
9f8b032d | 849 | case CdlID: |
e4268a49 | 850 | AddIrqQueue(CdlID + 0x100, 20480); |
ef79bbde P |
851 | break; |
852 | ||
e4268a49 | 853 | case CdlID + 0x100: |
ef79bbde | 854 | SetResultSize(8); |
89ec56af | 855 | cdr.Result[0] = cdr.StatP; |
856 | cdr.Result[1] = 0; | |
857 | cdr.Result[2] = 0; | |
858 | cdr.Result[3] = 0; | |
9f8b032d | 859 | |
d8432250 | 860 | // 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed |
861 | if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) { | |
862 | cdr.Result[1] = 0xc0; | |
9f8b032d | 863 | } |
864 | else { | |
89ec56af | 865 | if (stat.Type == 2) |
866 | cdr.Result[1] |= 0x10; | |
867 | if (CdromId[0] == '\0') | |
9f8b032d | 868 | cdr.Result[1] |= 0x80; |
9f8b032d | 869 | } |
89ec56af | 870 | cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08; |
9f8b032d | 871 | |
ef79bbde P |
872 | strncpy((char *)&cdr.Result[4], "PCSX", 4); |
873 | cdr.Stat = Complete; | |
874 | break; | |
875 | ||
876 | case CdlReset: | |
e4268a49 | 877 | // yes, it really sets STATUS_SHELLOPEN |
878 | cdr.StatP |= STATUS_SHELLOPEN; | |
879 | cdr.DriveState = DRIVESTATE_RESCAN_CD; | |
880 | CDRLID_INT(20480); | |
881 | no_busy_error = 1; | |
882 | start_rotating = 1; | |
9f8b032d | 883 | break; |
884 | ||
e4268a49 | 885 | case CdlGetQ: |
886 | // TODO? | |
887 | CDR_LOG_I("got CdlGetQ\n"); | |
9f8b032d | 888 | break; |
889 | ||
890 | case CdlReadToc: | |
e4268a49 | 891 | AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4); |
892 | no_busy_error = 1; | |
893 | start_rotating = 1; | |
ef79bbde P |
894 | break; |
895 | ||
e4268a49 | 896 | case CdlReadToc + 0x100: |
9f8b032d | 897 | cdr.Stat = Complete; |
e4268a49 | 898 | no_busy_error = 1; |
ef79bbde P |
899 | break; |
900 | ||
94c118c3 | 901 | case CdlReadN: |
902 | case CdlReadS: | |
030bd76a | 903 | cdr.Reading = 1; |
904 | cdr.FirstSector = 1; | |
ef79bbde | 905 | |
9f8b032d | 906 | // Fighting Force 2 - update subq time immediately |
907 | // - fixes new game | |
73b29eeb | 908 | Find_CurTrack(cdr.SetSector); |
909 | ReadTrack(cdr.SetSector); | |
9f8b032d | 910 | |
911 | ||
912 | // Crusaders of Might and Magic - update getlocl now | |
913 | // - fixes cutscene speech | |
914 | { | |
915 | u8 *buf = CDR_getBuffer(); | |
a48ae3a7 | 916 | if (buf != NULL) |
917 | memcpy(cdr.Transfer, buf, 8); | |
9f8b032d | 918 | } |
39df67df | 919 | |
9f8b032d | 920 | /* |
921 | Duke Nukem: Land of the Babes - seek then delay read for one frame | |
922 | - fixes cutscenes | |
914722b2 | 923 | C-12 - Final Resistance - doesn't like seek |
9f8b032d | 924 | */ |
925 | ||
39df67df | 926 | if (cdr.Seeked != SEEK_DONE) { |
9f8b032d | 927 | cdr.StatP |= STATUS_SEEK; |
928 | cdr.StatP &= ~STATUS_READ; | |
929 | ||
930 | // Crusaders of Might and Magic - use short time | |
931 | // - fix cutscene speech (startup) | |
932 | ||
933 | // ??? - use more accurate seek time later | |
934 | CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1); | |
935 | } else { | |
936 | cdr.StatP |= STATUS_READ; | |
937 | cdr.StatP &= ~STATUS_SEEK; | |
938 | ||
939 | CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1); | |
940 | } | |
ef79bbde | 941 | |
9f8b032d | 942 | cdr.Result[0] = cdr.StatP; |
e4268a49 | 943 | start_rotating = 1; |
ef79bbde P |
944 | break; |
945 | ||
ef79bbde | 946 | default: |
e4268a49 | 947 | CDR_LOG_I("Invalid command: %02x\n", Irq); |
948 | error = ERROR_INVALIDCMD; | |
949 | // FALLTHROUGH | |
950 | ||
951 | set_error: | |
952 | SetResultSize(2); | |
953 | cdr.Result[0] = cdr.StatP | STATUS_ERROR; | |
954 | cdr.Result[1] = error; | |
955 | cdr.Stat = DiskError; | |
ef79bbde P |
956 | break; |
957 | } | |
958 | ||
e4268a49 | 959 | if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) { |
960 | cdr.DriveState = DRIVESTATE_STANDBY; | |
961 | cdr.StatP |= STATUS_ROTATING; | |
962 | } | |
963 | ||
964 | if (!no_busy_error) { | |
80f91a20 | 965 | switch (cdr.DriveState) { |
966 | case DRIVESTATE_LID_OPEN: | |
967 | case DRIVESTATE_RESCAN_CD: | |
968 | case DRIVESTATE_PREPARE_CD: | |
969 | SetResultSize(2); | |
970 | cdr.Result[0] = cdr.StatP | STATUS_ERROR; | |
e4268a49 | 971 | cdr.Result[1] = ERROR_NOT_READY; |
80f91a20 | 972 | cdr.Stat = DiskError; |
973 | break; | |
974 | } | |
975 | } | |
9f8b032d | 976 | |
e4268a49 | 977 | finish: |
94c118c3 | 978 | setIrq(); |
e4268a49 | 979 | cdr.ParamC = 0; |
ef79bbde | 980 | |
8b380e97 | 981 | #ifdef CDR_LOG_CMD_IRQ |
e4268a49 | 982 | { |
983 | int i; | |
984 | SysPrintf("CDR IRQ %d cmd %02x stat %02x: ", | |
985 | !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat); | |
986 | for (i = 0; i < cdr.ResultC; i++) | |
987 | SysPrintf("%02x ", cdr.Result[i]); | |
988 | SysPrintf("\n"); | |
989 | } | |
ef79bbde P |
990 | #endif |
991 | } | |
992 | ||
53598a71 | 993 | #ifdef __ARM_ARCH_7A__ |
994 | #define ssat32_to_16(v) \ | |
995 | asm("ssat %0,#16,%1" : "=r" (v) : "r" (v)) | |
996 | #else | |
997 | #define ssat32_to_16(v) do { \ | |
998 | if (v < -32768) v = -32768; \ | |
999 | else if (v > 32767) v = 32767; \ | |
1000 | } while (0) | |
1001 | #endif | |
1002 | ||
1003 | void cdrAttenuate(s16 *buf, int samples, int stereo) | |
1004 | { | |
1005 | int i, l, r; | |
1006 | int ll = cdr.AttenuatorLeftToLeft; | |
1007 | int lr = cdr.AttenuatorLeftToRight; | |
1008 | int rl = cdr.AttenuatorRightToLeft; | |
1009 | int rr = cdr.AttenuatorRightToRight; | |
1010 | ||
1011 | if (lr == 0 && rl == 0 && 0x78 <= ll && ll <= 0x88 && 0x78 <= rr && rr <= 0x88) | |
1012 | return; | |
1013 | ||
1014 | if (!stereo && ll == 0x40 && lr == 0x40 && rl == 0x40 && rr == 0x40) | |
1015 | return; | |
1016 | ||
1017 | if (stereo) { | |
1018 | for (i = 0; i < samples; i++) { | |
1019 | l = buf[i * 2]; | |
1020 | r = buf[i * 2 + 1]; | |
1021 | l = (l * ll + r * rl) >> 7; | |
1022 | r = (r * rr + l * lr) >> 7; | |
1023 | ssat32_to_16(l); | |
1024 | ssat32_to_16(r); | |
1025 | buf[i * 2] = l; | |
1026 | buf[i * 2 + 1] = r; | |
1027 | } | |
1028 | } | |
1029 | else { | |
1030 | for (i = 0; i < samples; i++) { | |
1031 | l = buf[i]; | |
1032 | l = l * (ll + rl) >> 7; | |
1033 | //r = r * (rr + lr) >> 7; | |
1034 | ssat32_to_16(l); | |
1035 | //ssat32_to_16(r); | |
1036 | buf[i] = l; | |
1037 | } | |
1038 | } | |
1039 | } | |
1040 | ||
ef79bbde P |
1041 | void cdrReadInterrupt() { |
1042 | u8 *buf; | |
1043 | ||
1044 | if (!cdr.Reading) | |
1045 | return; | |
1046 | ||
9f8b032d | 1047 | if (cdr.Irq || cdr.Stat) { |
8b380e97 | 1048 | CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat); |
e7e33ef2 | 1049 | CDREAD_INT(0x1000); |
ef79bbde P |
1050 | return; |
1051 | } | |
1052 | ||
9f8b032d | 1053 | cdr.OCUP = 1; |
ef79bbde | 1054 | SetResultSize(1); |
9f8b032d | 1055 | cdr.StatP |= STATUS_READ|STATUS_ROTATING; |
1056 | cdr.StatP &= ~STATUS_SEEK; | |
1057 | cdr.Result[0] = cdr.StatP; | |
39df67df | 1058 | cdr.Seeked = SEEK_DONE; |
ef79bbde | 1059 | |
73b29eeb | 1060 | ReadTrack(cdr.SetSector); |
ef79bbde P |
1061 | |
1062 | buf = CDR_getBuffer(); | |
1063 | if (buf == NULL) | |
1064 | cdr.RErr = -1; | |
1065 | ||
1066 | if (cdr.RErr == -1) { | |
8b380e97 | 1067 | CDR_LOG_I("cdrReadInterrupt() Log: err\n"); |
ef79bbde P |
1068 | memset(cdr.Transfer, 0, DATA_SIZE); |
1069 | cdr.Stat = DiskError; | |
9f8b032d | 1070 | cdr.Result[0] |= STATUS_ERROR; |
ef79bbde P |
1071 | CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime); |
1072 | return; | |
1073 | } | |
1074 | ||
1075 | memcpy(cdr.Transfer, buf, DATA_SIZE); | |
1076 | CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]); | |
1077 | ||
ef79bbde | 1078 | |
8b380e97 | 1079 | CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]); |
ef79bbde | 1080 | |
9f8b032d | 1081 | if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA |
1082 | // Firemen 2: Multi-XA files - briefings, cutscenes | |
1083 | if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) { | |
1084 | cdr.File = cdr.Transfer[4 + 0]; | |
1085 | cdr.Channel = cdr.Transfer[4 + 1]; | |
1086 | } | |
1087 | ||
cd0c9f5b | 1088 | if((cdr.Transfer[4 + 2] & 0x4) && |
9f8b032d | 1089 | (cdr.Transfer[4 + 1] == cdr.Channel) && |
cd0c9f5b | 1090 | (cdr.Transfer[4 + 0] == cdr.File)) { |
ef79bbde | 1091 | int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector); |
ef79bbde | 1092 | if (!ret) { |
53598a71 | 1093 | cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo); |
ef79bbde P |
1094 | SPU_playADPCMchannel(&cdr.Xa); |
1095 | cdr.FirstSector = 0; | |
1096 | } | |
1097 | else cdr.FirstSector = -1; | |
1098 | } | |
1099 | } | |
1100 | ||
1101 | cdr.SetSector[2]++; | |
9f8b032d | 1102 | if (cdr.SetSector[2] == 75) { |
1103 | cdr.SetSector[2] = 0; | |
1104 | cdr.SetSector[1]++; | |
1105 | if (cdr.SetSector[1] == 60) { | |
1106 | cdr.SetSector[1] = 0; | |
1107 | cdr.SetSector[0]++; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | cdr.Readed = 0; | |
1112 | ||
a34a2445 | 1113 | CDREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime); |
9f8b032d | 1114 | |
1115 | /* | |
1116 | Croc 2: $40 - only FORM1 (*) | |
1117 | Judge Dredd: $C8 - only FORM1 (*) | |
1118 | Sim Theme Park - no adpcm at all (zero) | |
1119 | */ | |
1120 | ||
a34a2445 | 1121 | if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) { |
9f8b032d | 1122 | cdr.Stat = DataReady; |
a34a2445 | 1123 | setIrq(); |
ef79bbde | 1124 | } |
9f8b032d | 1125 | |
fffad32e | 1126 | // update for CdlGetlocP |
73b29eeb | 1127 | ReadTrack(cdr.SetSector); |
ef79bbde P |
1128 | } |
1129 | ||
1130 | /* | |
1131 | cdrRead0: | |
94c118c3 | 1132 | bit 0,1 - mode |
ef79bbde P |
1133 | bit 2 - unknown |
1134 | bit 3 - unknown | |
1135 | bit 4 - unknown | |
1136 | bit 5 - 1 result ready | |
1137 | bit 6 - 1 dma ready | |
1138 | bit 7 - 1 command being processed | |
1139 | */ | |
1140 | ||
1141 | unsigned char cdrRead0(void) { | |
1142 | if (cdr.ResultReady) | |
1143 | cdr.Ctrl |= 0x20; | |
1144 | else | |
1145 | cdr.Ctrl &= ~0x20; | |
1146 | ||
1147 | if (cdr.OCUP) | |
1148 | cdr.Ctrl |= 0x40; | |
1149 | // else | |
1150 | // cdr.Ctrl &= ~0x40; | |
1151 | ||
1152 | // What means the 0x10 and the 0x08 bits? I only saw it used by the bios | |
1153 | cdr.Ctrl |= 0x18; | |
1154 | ||
8b380e97 | 1155 | CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl); |
ef79bbde P |
1156 | |
1157 | return psxHu8(0x1800) = cdr.Ctrl; | |
1158 | } | |
1159 | ||
ef79bbde | 1160 | void cdrWrite0(unsigned char rt) { |
8b380e97 | 1161 | CDR_LOG_IO("cdr w0: %02x\n", rt); |
1162 | ||
50b13be9 | 1163 | cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3); |
ef79bbde P |
1164 | } |
1165 | ||
1166 | unsigned char cdrRead1(void) { | |
94c118c3 | 1167 | if ((cdr.ResultP & 0xf) < cdr.ResultC) |
9f8b032d | 1168 | psxHu8(0x1801) = cdr.Result[cdr.ResultP & 0xf]; |
94c118c3 | 1169 | else |
ef79bbde | 1170 | psxHu8(0x1801) = 0; |
94c118c3 | 1171 | cdr.ResultP++; |
1172 | if (cdr.ResultP == cdr.ResultC) | |
1173 | cdr.ResultReady = 0; | |
1174 | ||
8b380e97 | 1175 | CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801)); |
1176 | ||
ef79bbde P |
1177 | return psxHu8(0x1801); |
1178 | } | |
1179 | ||
1180 | void cdrWrite1(unsigned char rt) { | |
305c8c93 | 1181 | u8 set_loc[3]; |
ef79bbde P |
1182 | int i; |
1183 | ||
8b380e97 | 1184 | CDR_LOG_IO("cdr w1: %02x\n", rt); |
9f8b032d | 1185 | |
94c118c3 | 1186 | switch (cdr.Ctrl & 3) { |
1187 | case 0: | |
1188 | break; | |
1189 | case 3: | |
53598a71 | 1190 | cdr.AttenuatorRightToRightT = rt; |
94c118c3 | 1191 | return; |
1192 | default: | |
1193 | return; | |
9f8b032d | 1194 | } |
1195 | ||
9f8b032d | 1196 | cdr.Cmd = rt; |
ef79bbde P |
1197 | cdr.OCUP = 0; |
1198 | ||
8b380e97 | 1199 | #ifdef CDR_LOG_CMD_IRQ |
89ec56af | 1200 | SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]); |
ef79bbde P |
1201 | if (cdr.ParamC) { |
1202 | SysPrintf(" Param[%d] = {", cdr.ParamC); | |
1203 | for (i = 0; i < cdr.ParamC; i++) | |
1204 | SysPrintf(" %x,", cdr.Param[i]); | |
1205 | SysPrintf("}\n"); | |
1206 | } else { | |
1207 | SysPrintf("\n"); | |
1208 | } | |
1209 | #endif | |
1210 | ||
2daaaae3 | 1211 | cdr.ResultReady = 0; |
94c118c3 | 1212 | cdr.Ctrl |= 0x80; |
1213 | // cdr.Stat = NoIntr; | |
1214 | AddIrqQueue(cdr.Cmd, 0x800); | |
2daaaae3 | 1215 | |
9f8b032d | 1216 | switch (cdr.Cmd) { |
94c118c3 | 1217 | case CdlSetloc: |
9f8b032d | 1218 | for (i = 0; i < 3; i++) |
914722b2 | 1219 | set_loc[i] = btoi(cdr.Param[i]); |
39df67df | 1220 | |
2d5ca6c0 | 1221 | // FIXME: clean up this SetSector/SetSectorPlay mess, |
1222 | // there should be single var tracking current sector pos | |
1223 | if (cdr.Play) | |
1224 | i = msf2sec(cdr.SetSectorPlay); | |
1225 | else | |
1226 | i = msf2sec(cdr.SetSector); | |
1227 | i = abs(i - msf2sec(set_loc)); | |
914722b2 | 1228 | if (i > 16) |
94c118c3 | 1229 | cdr.Seeked = SEEK_PENDING; |
39df67df | 1230 | |
914722b2 | 1231 | memcpy(cdr.SetSector, set_loc, 3); |
94c118c3 | 1232 | cdr.SetSector[3] = 0; |
1233 | break; | |
ef79bbde | 1234 | |
94c118c3 | 1235 | case CdlReadN: |
030bd76a | 1236 | case CdlReadS: |
94c118c3 | 1237 | case CdlPause: |
9f8b032d | 1238 | StopCdda(); |
1239 | StopReading(); | |
9f8b032d | 1240 | break; |
1241 | ||
1242 | case CdlReset: | |
94c118c3 | 1243 | case CdlInit: |
39df67df | 1244 | cdr.Seeked = SEEK_DONE; |
9f8b032d | 1245 | StopCdda(); |
1246 | StopReading(); | |
94c118c3 | 1247 | break; |
9f8b032d | 1248 | |
ef79bbde | 1249 | case CdlSetmode: |
9f8b032d | 1250 | CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]); |
8b380e97 | 1251 | |
ef79bbde | 1252 | cdr.Mode = cdr.Param[0]; |
9f8b032d | 1253 | |
1254 | // Squaresoft on PlayStation 1998 Collector's CD Vol. 1 | |
1255 | // - fixes choppy movie sound | |
1256 | if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 ) | |
1257 | StopCdda(); | |
ef79bbde | 1258 | break; |
9f8b032d | 1259 | } |
ef79bbde P |
1260 | } |
1261 | ||
1262 | unsigned char cdrRead2(void) { | |
1263 | unsigned char ret; | |
1264 | ||
1265 | if (cdr.Readed == 0) { | |
1266 | ret = 0; | |
1267 | } else { | |
8e1040b6 | 1268 | ret = *pTransfer++; |
ef79bbde P |
1269 | } |
1270 | ||
8b380e97 | 1271 | CDR_LOG_IO("cdr r2: %02x\n", ret); |
ef79bbde P |
1272 | return ret; |
1273 | } | |
1274 | ||
1275 | void cdrWrite2(unsigned char rt) { | |
8b380e97 | 1276 | CDR_LOG_IO("cdr w2: %02x\n", rt); |
9f8b032d | 1277 | |
94c118c3 | 1278 | switch (cdr.Ctrl & 3) { |
1279 | case 0: | |
1280 | if (cdr.ParamC < 8) // FIXME: size and wrapping | |
1281 | cdr.Param[cdr.ParamC++] = rt; | |
1282 | return; | |
1283 | case 1: | |
1284 | cdr.Reg2 = rt; | |
1285 | setIrq(); | |
1286 | return; | |
1287 | case 2: | |
53598a71 | 1288 | cdr.AttenuatorLeftToLeftT = rt; |
94c118c3 | 1289 | return; |
1290 | case 3: | |
53598a71 | 1291 | cdr.AttenuatorRightToLeftT = rt; |
94c118c3 | 1292 | return; |
ef79bbde P |
1293 | } |
1294 | } | |
1295 | ||
1296 | unsigned char cdrRead3(void) { | |
94c118c3 | 1297 | if (cdr.Ctrl & 0x1) |
1298 | psxHu8(0x1803) = cdr.Stat | 0xE0; | |
1299 | else | |
1300 | psxHu8(0x1803) = cdr.Reg2 | 0xE0; | |
8b380e97 | 1301 | |
1302 | CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803)); | |
ef79bbde P |
1303 | return psxHu8(0x1803); |
1304 | } | |
1305 | ||
1306 | void cdrWrite3(unsigned char rt) { | |
8b380e97 | 1307 | CDR_LOG_IO("cdr w3: %02x\n", rt); |
056d6759 | 1308 | |
94c118c3 | 1309 | switch (cdr.Ctrl & 3) { |
1310 | case 0: | |
a34a2445 | 1311 | break; // transfer |
94c118c3 | 1312 | case 1: |
a34a2445 | 1313 | cdr.Stat &= ~rt; |
1314 | ||
1315 | if (rt & 0x40) | |
1316 | cdr.ParamC = 0; | |
1317 | return; | |
94c118c3 | 1318 | case 2: |
53598a71 | 1319 | cdr.AttenuatorLeftToRightT = rt; |
94c118c3 | 1320 | return; |
1321 | case 3: | |
53598a71 | 1322 | if (rt & 0x20) { |
1323 | memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4); | |
1324 | CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n", | |
1325 | cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight, | |
1326 | cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight); | |
1327 | } | |
94c118c3 | 1328 | return; |
9f8b032d | 1329 | } |
056d6759 | 1330 | |
94c118c3 | 1331 | if ((rt & 0x80) && cdr.Readed == 0) { |
ef79bbde | 1332 | cdr.Readed = 1; |
8e1040b6 | 1333 | pTransfer = cdr.Transfer; |
ef79bbde P |
1334 | |
1335 | switch (cdr.Mode & 0x30) { | |
9f8b032d | 1336 | case MODE_SIZE_2328: |
ef79bbde | 1337 | case 0x00: |
8e1040b6 | 1338 | pTransfer += 12; |
ef79bbde | 1339 | break; |
9f8b032d | 1340 | |
1341 | case MODE_SIZE_2340: | |
8e1040b6 | 1342 | pTransfer += 0; |
9f8b032d | 1343 | break; |
1344 | ||
ef79bbde P |
1345 | default: |
1346 | break; | |
1347 | } | |
1348 | } | |
1349 | } | |
1350 | ||
1351 | void psxDma3(u32 madr, u32 bcr, u32 chcr) { | |
1352 | u32 cdsize; | |
c7071c43 | 1353 | int size; |
ef79bbde P |
1354 | u8 *ptr; |
1355 | ||
ef79bbde | 1356 | CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr); |
ef79bbde P |
1357 | |
1358 | switch (chcr) { | |
1359 | case 0x11000000: | |
1360 | case 0x11400100: | |
1361 | if (cdr.Readed == 0) { | |
ef79bbde | 1362 | CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n"); |
ef79bbde P |
1363 | break; |
1364 | } | |
1365 | ||
1366 | cdsize = (bcr & 0xffff) * 4; | |
1367 | ||
9f8b032d | 1368 | // Ape Escape: bcr = 0001 / 0000 |
1369 | // - fix boot | |
1370 | if( cdsize == 0 ) | |
1371 | { | |
cd0c9f5b | 1372 | switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) { |
9f8b032d | 1373 | case MODE_SIZE_2340: cdsize = 2340; break; |
cd0c9f5b | 1374 | case MODE_SIZE_2328: cdsize = 2328; break; |
1375 | default: | |
1376 | case MODE_SIZE_2048: cdsize = 2048; break; | |
9f8b032d | 1377 | } |
1378 | } | |
1379 | ||
1380 | ||
ef79bbde P |
1381 | ptr = (u8 *)PSXM(madr); |
1382 | if (ptr == NULL) { | |
ef79bbde | 1383 | CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n"); |
ef79bbde P |
1384 | break; |
1385 | } | |
9f8b032d | 1386 | |
1387 | /* | |
1388 | GS CDX: Enhancement CD crash | |
1389 | - Setloc 0:0:0 | |
1390 | - CdlPlay | |
1391 | - Spams DMA3 and gets buffer overrun | |
1392 | */ | |
8e1040b6 | 1393 | size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer); |
c7071c43 | 1394 | if (size > cdsize) |
1395 | size = cdsize; | |
1396 | if (size > 0) | |
9f8b032d | 1397 | { |
8e1040b6 | 1398 | memcpy(ptr, pTransfer, size); |
9f8b032d | 1399 | } |
1400 | ||
ef79bbde | 1401 | psxCpu->Clear(madr, cdsize / 4); |
8e1040b6 | 1402 | pTransfer += cdsize; |
9f8b032d | 1403 | |
1404 | ||
1405 | // burst vs normal | |
1406 | if( chcr == 0x11400100 ) { | |
1407 | CDRDMA_INT( (cdsize/4) / 4 ); | |
1408 | } | |
1409 | else if( chcr == 0x11000000 ) { | |
1410 | CDRDMA_INT( (cdsize/4) * 1 ); | |
1411 | } | |
1412 | return; | |
1413 | ||
ef79bbde | 1414 | default: |
ef79bbde | 1415 | CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr); |
ef79bbde P |
1416 | break; |
1417 | } | |
1418 | ||
1419 | HW_DMA3_CHCR &= SWAP32(~0x01000000); | |
1420 | DMA_INTERRUPT(3); | |
1421 | } | |
1422 | ||
9f8b032d | 1423 | void cdrDmaInterrupt() |
1424 | { | |
ad418c19 | 1425 | if (HW_DMA3_CHCR & SWAP32(0x01000000)) |
1426 | { | |
1427 | HW_DMA3_CHCR &= SWAP32(~0x01000000); | |
1428 | DMA_INTERRUPT(3); | |
1429 | } | |
9f8b032d | 1430 | } |
1431 | ||
fffad32e | 1432 | static void getCdInfo(void) |
1433 | { | |
1434 | u8 tmp; | |
1435 | ||
1436 | CDR_getTN(cdr.ResultTN); | |
1437 | CDR_getTD(0, cdr.SetSectorEnd); | |
1438 | tmp = cdr.SetSectorEnd[0]; | |
1439 | cdr.SetSectorEnd[0] = cdr.SetSectorEnd[2]; | |
1440 | cdr.SetSectorEnd[2] = tmp; | |
1441 | } | |
1442 | ||
ef79bbde P |
1443 | void cdrReset() { |
1444 | memset(&cdr, 0, sizeof(cdr)); | |
1445 | cdr.CurTrack = 1; | |
1446 | cdr.File = 1; | |
1447 | cdr.Channel = 1; | |
a2d3ccb8 | 1448 | cdr.Reg2 = 0x1f; |
1449 | cdr.Stat = NoIntr; | |
80f91a20 | 1450 | cdr.DriveState = DRIVESTATE_STANDBY; |
22bbabf6 | 1451 | cdr.StatP = STATUS_ROTATING; |
8e1040b6 | 1452 | pTransfer = cdr.Transfer; |
056d6759 | 1453 | |
1454 | // BIOS player - default values | |
53598a71 | 1455 | cdr.AttenuatorLeftToLeft = 0x80; |
1456 | cdr.AttenuatorLeftToRight = 0x00; | |
1457 | cdr.AttenuatorRightToLeft = 0x00; | |
1458 | cdr.AttenuatorRightToRight = 0x80; | |
fffad32e | 1459 | |
1460 | getCdInfo(); | |
ef79bbde P |
1461 | } |
1462 | ||
496d88d4 | 1463 | int cdrFreeze(void *f, int Mode) { |
8e1040b6 | 1464 | u32 tmp; |
fffad32e | 1465 | u8 tmpp[3]; |
ef79bbde | 1466 | |
fffad32e | 1467 | if (Mode == 0 && !Config.Cdda) |
1468 | CDR_stop(); | |
9f8b032d | 1469 | |
c69642c8 | 1470 | cdr.freeze_ver = 0x63647201; |
9f8b032d | 1471 | gzfreeze(&cdr, sizeof(cdr)); |
1472 | ||
94c118c3 | 1473 | if (Mode == 1) { |
1474 | cdr.ParamP = cdr.ParamC; | |
8e1040b6 | 1475 | tmp = pTransfer - cdr.Transfer; |
94c118c3 | 1476 | } |
ef79bbde P |
1477 | |
1478 | gzfreeze(&tmp, sizeof(tmp)); | |
1479 | ||
42f3c512 | 1480 | if (Mode == 0) { |
fffad32e | 1481 | getCdInfo(); |
1482 | ||
8e1040b6 | 1483 | pTransfer = cdr.Transfer + tmp; |
ef79bbde | 1484 | |
fffad32e | 1485 | // read right sub data |
1486 | memcpy(tmpp, cdr.Prev, 3); | |
1487 | cdr.Prev[0]++; | |
73b29eeb | 1488 | ReadTrack(tmpp); |
fffad32e | 1489 | |
1490 | if (cdr.Play) { | |
1491 | Find_CurTrack(cdr.SetSectorPlay); | |
1492 | if (!Config.Cdda) | |
1493 | CDR_play(cdr.SetSectorPlay); | |
1494 | } | |
c69642c8 | 1495 | |
1496 | if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) { | |
1497 | // old versions did not latch Reg2, have to fixup.. | |
1498 | if (cdr.Reg2 == 0) { | |
1499 | SysPrintf("cdrom: fixing up old savestate\n"); | |
1500 | cdr.Reg2 = 7; | |
1501 | } | |
1502 | } | |
42f3c512 | 1503 | } |
1504 | ||
ef79bbde P |
1505 | return 0; |
1506 | } | |
9f8b032d | 1507 | |
1508 | void LidInterrupt() { | |
fffad32e | 1509 | getCdInfo(); |
fffad32e | 1510 | StopCdda(); |
80f91a20 | 1511 | cdrLidSeekInterrupt(); |
9f8b032d | 1512 | } |