* Handles all CD-ROM registers and functions.
*/
+#include <assert.h>
#include "cdrom.h"
+#include "misc.h"
#include "ppf.h"
#include "psxdma.h"
+#include "psxevents.h"
#include "arm_features.h"
/* logging */
#if 0
#define CDR_LOG_I SysPrintf
#else
-#define CDR_LOG_I(...)
+#define CDR_LOG_I(fmt, ...) \
+ log_unhandled("%u cdrom: " fmt, psxRegs.cycle, ##__VA_ARGS__)
#endif
#if 0
#define CDR_LOG_IO SysPrintf
#endif
//#define CDR_LOG_CMD_IRQ
-cdrStruct cdr;
-static unsigned char *pTransfer;
+static struct {
+ // unused members maintain savesate compatibility
+ unsigned char unused0;
+ unsigned char unused1;
+ unsigned char Reg2;
+ unsigned char unused2;
+ unsigned char Ctrl;
+ unsigned char Stat;
+
+ unsigned char StatP;
+
+ unsigned char Transfer[DATA_SIZE];
+ struct {
+ unsigned char Track;
+ unsigned char Index;
+ unsigned char Relative[3];
+ unsigned char Absolute[3];
+ } subq;
+ unsigned char TrackChanged;
+ unsigned char ReportDelay;
+ unsigned char unused3;
+ unsigned short sectorsRead;
+ unsigned int freeze_ver;
+
+ unsigned char Prev[4];
+ unsigned char Param[8];
+ unsigned char Result[16];
+
+ unsigned char ParamC;
+ unsigned char ParamP;
+ unsigned char ResultC;
+ unsigned char ResultP;
+ unsigned char ResultReady;
+ unsigned char Cmd;
+ unsigned char SubqForwardSectors;
+ unsigned char SetlocPending;
+ u32 Reading;
+
+ unsigned char ResultTN[6];
+ unsigned char ResultTD[4];
+ unsigned char SetSectorPlay[4];
+ unsigned char SetSectorEnd[4];
+ unsigned char SetSector[4];
+ unsigned char Track;
+ boolean Play, Muted;
+ int CurTrack;
+ int Mode, File, Channel;
+ unsigned char LocL[8];
+ int FirstSector;
+
+ xa_decode_t Xa;
+
+ u16 FifoOffset;
+ u16 FifoSize;
+
+ u16 CmdInProgress;
+ u8 Irq1Pending;
+ u8 unused5;
+ u32 LastReadSeekCycles;
+
+ u8 unused7;
+
+ u8 DriveState;
+ u8 FastForward;
+ u8 FastBackward;
+ u8 errorRetryhack;
+
+ u8 AttenuatorLeftToLeft, AttenuatorLeftToRight;
+ u8 AttenuatorRightToRight, AttenuatorRightToLeft;
+ u8 AttenuatorLeftToLeftT, AttenuatorLeftToRightT;
+ u8 AttenuatorRightToRightT, AttenuatorRightToLeftT;
+} cdr;
static s16 read_buf[CD_FRAMESIZE_RAW/2];
/* CD-ROM magic numbers */
-#define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
+#define CdlSync 0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
#define CdlNop 1
#define CdlSetloc 2
#define CdlPlay 3
#define CdlGetQ 29
#define CdlReadToc 30
-char *CmdName[0x100]= {
+#ifdef CDR_LOG_CMD_IRQ
+static const char * const CmdName[0x100] = {
"CdlSync", "CdlNop", "CdlSetloc", "CdlPlay",
"CdlForward", "CdlBackward", "CdlReadN", "CdlStandby",
- "CdlStop", "CdlPause", "CdlReset", "CdlMute",
+ "CdlStop", "CdlPause", "CdlReset", "CdlMute",
"CdlDemute", "CdlSetfilter", "CdlSetmode", "CdlGetparam",
"CdlGetlocL", "CdlGetlocP", "CdlReadT", "CdlGetTN",
"CdlGetTD", "CdlSeekL", "CdlSeekP", "CdlSetclock",
"CdlGetclock", "CdlTest", "CdlID", "CdlReadS",
- "CdlInit", NULL, "CDlReadToc", NULL
+ "CdlInit", NULL, "CDlReadToc", NULL
};
+#endif
unsigned char Test04[] = { 0 };
unsigned char Test05[] = { 0 };
// so (PSXCLK / 75) = cdr read time (linuzappz)
#define cdReadTime (PSXCLK / 75)
+#define LOCL_INVALID 0xff
+#define SUBQ_FORWARD_SECTORS 2u
+
enum drive_state {
- DRIVESTATE_STANDBY = 0,
+ DRIVESTATE_STANDBY = 0, // pause, play, read
DRIVESTATE_LID_OPEN,
DRIVESTATE_RESCAN_CD,
DRIVESTATE_PREPARE_CD,
DRIVESTATE_STOPPED,
};
-// for cdr.Seeked
-enum seeked_state {
- SEEK_PENDING = 0,
- SEEK_DONE = 1,
-};
-
static struct CdrStat stat;
static unsigned int msf2sec(const u8 *msf) {
msf[2] = s;
}
-// cdrInterrupt
-#define CDR_INT(eCycle) { \
- psxRegs.interrupt |= (1 << PSXINT_CDR); \
- psxRegs.intCycle[PSXINT_CDR].cycle = eCycle; \
- psxRegs.intCycle[PSXINT_CDR].sCycle = psxRegs.cycle; \
- new_dyna_set_event(PSXINT_CDR, eCycle); \
-}
-
-// cdrReadInterrupt
-#define CDREAD_INT(eCycle) { \
+// cdrPlayReadInterrupt
+#define CDRPLAYREAD_INT(eCycle, isFirst) { \
+ u32 e_ = eCycle; \
psxRegs.interrupt |= (1 << PSXINT_CDREAD); \
- psxRegs.intCycle[PSXINT_CDREAD].cycle = eCycle; \
- psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
- new_dyna_set_event(PSXINT_CDREAD, eCycle); \
-}
-
-// cdrLidSeekInterrupt
-#define CDRLID_INT(eCycle) { \
- psxRegs.interrupt |= (1 << PSXINT_CDRLID); \
- psxRegs.intCycle[PSXINT_CDRLID].cycle = eCycle; \
- psxRegs.intCycle[PSXINT_CDRLID].sCycle = psxRegs.cycle; \
- new_dyna_set_event(PSXINT_CDRLID, eCycle); \
-}
-
-// cdrPlayInterrupt
-#define CDRMISC_INT(eCycle) { \
- psxRegs.interrupt |= (1 << PSXINT_CDRPLAY); \
- psxRegs.intCycle[PSXINT_CDRPLAY].cycle = eCycle; \
- psxRegs.intCycle[PSXINT_CDRPLAY].sCycle = psxRegs.cycle; \
- new_dyna_set_event(PSXINT_CDRPLAY, eCycle); \
+ if (isFirst) \
+ psxRegs.intCycle[PSXINT_CDREAD].sCycle = psxRegs.cycle; \
+ else \
+ psxRegs.intCycle[PSXINT_CDREAD].sCycle += psxRegs.intCycle[PSXINT_CDREAD].cycle; \
+ psxRegs.intCycle[PSXINT_CDREAD].cycle = e_; \
+ set_event_raw_abs(PSXINT_CDREAD, psxRegs.intCycle[PSXINT_CDREAD].sCycle + e_); \
}
#define StopReading() { \
- if (cdr.Reading) { \
- cdr.Reading = 0; \
- psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
- } \
- cdr.StatP &= ~(STATUS_READ|STATUS_SEEK);\
+ cdr.Reading = 0; \
+ psxRegs.interrupt &= ~(1 << PSXINT_CDREAD); \
}
#define StopCdda() { \
- if (cdr.Play) { \
- if (!Config.Cdda) CDR_stop(); \
- cdr.StatP &= ~STATUS_PLAY; \
- cdr.Play = FALSE; \
- cdr.FastForward = 0; \
- cdr.FastBackward = 0; \
- /*SPU_registerCallback( SPUirq );*/ \
- } \
+ if (cdr.Play && !Config.Cdda) CDR_stop(); \
+ cdr.Play = FALSE; \
+ cdr.FastForward = 0; \
+ cdr.FastBackward = 0; \
+}
+
+#define SetPlaySeekRead(x, f) { \
+ x &= ~(STATUS_PLAY | STATUS_SEEK | STATUS_READ); \
+ x |= f; \
}
#define SetResultSize(size) { \
cdr.ResultReady = 1; \
}
-static void setIrq(void)
+static void setIrq(int log_cmd)
{
if (cdr.Stat & cdr.Reg2)
psxHu32ref(0x1070) |= SWAP32((u32)0x4);
+
+#ifdef CDR_LOG_CMD_IRQ
+ if (cdr.Stat)
+ {
+ int i;
+ CDR_LOG_I("CDR IRQ=%d cmd %02x stat %02x: ",
+ !!(cdr.Stat & cdr.Reg2), log_cmd, cdr.Stat);
+ for (i = 0; i < cdr.ResultC; i++)
+ SysPrintf("%02x ", cdr.Result[i]);
+ SysPrintf("\n");
+ }
+#endif
}
// timing used in this function was taken from tests on real hardware
// (yes it's slow, but you probably don't want to modify it)
-void cdrLidSeekInterrupt()
+void cdrLidSeekInterrupt(void)
{
+ CDR_LOG_I("%s cdr.DriveState=%d\n", __func__, cdr.DriveState);
+
switch (cdr.DriveState) {
default:
case DRIVESTATE_STANDBY:
- cdr.StatP &= ~STATUS_SEEK;
+ StopCdda();
+ StopReading();
+ SetPlaySeekRead(cdr.StatP, 0);
if (CDR_getStatus(&stat) == -1)
return;
if (stat.Status & STATUS_SHELLOPEN)
{
- StopCdda();
+ memset(cdr.Prev, 0xff, sizeof(cdr.Prev));
cdr.DriveState = DRIVESTATE_LID_OPEN;
- CDRLID_INT(0x800);
+ set_event(PSXINT_CDRLID, 0x800);
}
break;
// 02, 12, 10
if (!(cdr.StatP & STATUS_SHELLOPEN)) {
- StopReading();
cdr.StatP |= STATUS_SHELLOPEN;
// could generate error irq here, but real hardware
// only sometimes does that
// (not done when lots of commands are sent?)
- CDRLID_INT(cdReadTime * 30);
+ set_event(PSXINT_CDRLID, cdReadTime * 30);
break;
}
else if (cdr.StatP & STATUS_ROTATING) {
// and is only cleared by CdlNop
cdr.DriveState = DRIVESTATE_RESCAN_CD;
- CDRLID_INT(cdReadTime * 105);
+ set_event(PSXINT_CDRLID, cdReadTime * 105);
break;
}
// recheck for close
- CDRLID_INT(cdReadTime * 3);
+ set_event(PSXINT_CDRLID, cdReadTime * 3);
break;
case DRIVESTATE_RESCAN_CD:
// this is very long on real hardware, over 6 seconds
// make it a bit faster here...
- CDRLID_INT(cdReadTime * 150);
+ set_event(PSXINT_CDRLID, cdReadTime * 150);
break;
case DRIVESTATE_PREPARE_CD:
- cdr.StatP |= STATUS_SEEK;
-
- cdr.DriveState = DRIVESTATE_STANDBY;
- CDRLID_INT(cdReadTime * 26);
+ if (cdr.StatP & STATUS_SEEK) {
+ SetPlaySeekRead(cdr.StatP, 0);
+ cdr.DriveState = DRIVESTATE_STANDBY;
+ }
+ else {
+ SetPlaySeekRead(cdr.StatP, STATUS_SEEK);
+ set_event(PSXINT_CDRLID, cdReadTime * 26);
+ }
break;
}
}
cdr.subq.Absolute[2] = itob(time[2]);
}
-static void ReadTrack(const u8 *time) {
+static int ReadTrack(const u8 *time)
+{
unsigned char tmp[3];
- struct SubQ *subq;
- u16 crc;
+ int read_ok;
tmp[0] = itob(time[0]);
tmp[1] = itob(time[1]);
tmp[2] = itob(time[2]);
if (memcmp(cdr.Prev, tmp, 3) == 0)
- return;
+ return 1;
CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
- cdr.NoErr = CDR_readTrack(tmp);
- memcpy(cdr.Prev, tmp, 3);
+ read_ok = CDR_readTrack(tmp);
+ if (read_ok)
+ memcpy(cdr.Prev, tmp, 3);
+ return read_ok;
+}
- if (CheckSBI(time))
+static void UpdateSubq(const u8 *time)
+{
+ const struct SubQ *subq;
+ int s = MSF2SECT(time[0], time[1], time[2]);
+ u16 crc;
+
+ if (CheckSBI(s))
return;
- subq = (struct SubQ *)CDR_getBufferSub();
+ subq = (struct SubQ *)CDR_getBufferSub(s);
if (subq != NULL && cdr.CurTrack == 1) {
crc = calcCrc((u8 *)subq + 12, 10);
if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
}
else {
- CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
- tmp[0], tmp[1], tmp[2]);
+ CDR_LOG_I("subq bad crc @%02d:%02d:%02d\n",
+ time[0], time[1], time[2]);
}
}
else {
cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
}
-static void AddIrqQueue(unsigned short irq, unsigned long ecycle) {
- if (cdr.Irq != 0) {
- if (irq == cdr.Irq || irq + 0x100 == cdr.Irq) {
- cdr.IrqRepeated = 1;
- CDR_INT(ecycle);
- return;
- }
-
- CDR_LOG_I("cdr: override cmd %02x -> %02x\n", cdr.Irq, irq);
- }
-
- cdr.Irq = irq;
- cdr.eCycle = ecycle;
-
- CDR_INT(ecycle);
-}
-
static void cdrPlayInterrupt_Autopause()
{
u32 abs_lev_max = 0;
//cdr.ResultReady = 1;
//cdr.Stat = DataReady;
cdr.Stat = DataEnd;
- setIrq();
+ setIrq(0x1000); // 0x1000 just for logging purposes
StopCdda();
+ SetPlaySeekRead(cdr.StatP, 0);
}
- else if (((cdr.Mode & MODE_REPORT) || cdr.FastForward || cdr.FastBackward)) {
+ else if ((cdr.Mode & MODE_REPORT) && !cdr.ReportDelay &&
+ ((cdr.subq.Absolute[2] & 0x0f) == 0 || cdr.FastForward || cdr.FastBackward))
+ {
cdr.Result[0] = cdr.StatP;
cdr.Result[1] = cdr.subq.Track;
cdr.Result[2] = cdr.subq.Index;
cdr.Stat = DataReady;
SetResultSize(8);
- setIrq();
+ setIrq(0x1001);
}
+
+ if (cdr.ReportDelay)
+ cdr.ReportDelay--;
}
-// also handles seek
-void cdrPlayInterrupt()
+static int cdrSeekTime(unsigned char *target)
{
- if (cdr.Seeked == SEEK_PENDING) {
- if (cdr.Stat) {
- CDR_LOG_I("cdrom: seek stat hack\n");
- CDRMISC_INT(0x1000);
- return;
- }
- SetResultSize(1);
- cdr.StatP |= STATUS_ROTATING;
- cdr.StatP &= ~STATUS_SEEK;
- cdr.Result[0] = cdr.StatP;
- cdr.Seeked = SEEK_DONE;
- if (cdr.Irq == 0) {
- cdr.Stat = Complete;
- setIrq();
+ int diff = msf2sec(cdr.SetSectorPlay) - msf2sec(target);
+ int seekTime = abs(diff) * (cdReadTime / 2000);
+ seekTime = MAX_VALUE(seekTime, 20000);
+
+ // need this stupidly long penalty or else Spyro2 intro desyncs
+ if ((s32)(psxRegs.cycle - cdr.LastReadSeekCycles) > cdReadTime * 8)
+ seekTime += cdReadTime * 25;
+
+ seekTime = MIN_VALUE(seekTime, PSXCLK * 2 / 3);
+ CDR_LOG("seek: %.2f %.2f\n", (float)seekTime / PSXCLK, (float)seekTime / cdReadTime);
+ return seekTime;
+}
+
+static u32 cdrAlignTimingHack(u32 cycles)
+{
+ /*
+ * timing hack for T'ai Fu - Wrath of the Tiger:
+ * The game has a bug where it issues some cdc commands from a low priority
+ * vint handler, however there is a higher priority default bios handler
+ * that acks the vint irq and returns, so game's handler is not reached
+ * (see bios irq handler chains at e004 and the game's irq handling func
+ * at 80036810). For the game to work, vint has to arrive after the bios
+ * vint handler rejects some other irq (of which only cd and rcnt2 are
+ * active), but before the game's handler loop reads I_STAT. The time
+ * window for this is quite small (~1k cycles of so). Apparently this
+ * somehow happens naturally on the real hardware.
+ *
+ * Note: always enforcing this breaks other games like Crash PAL version
+ * (inputs get dropped because bios handler doesn't see interrupts).
+ */
+ u32 vint_rel;
+ if (psxRegs.cycle - rcnts[3].cycleStart > 250000)
+ return cycles;
+ vint_rel = rcnts[3].cycleStart + 63000 - psxRegs.cycle;
+ vint_rel += PSXCLK / 60;
+ while ((s32)(vint_rel - cycles) < 0)
+ vint_rel += PSXCLK / 60;
+ return vint_rel;
+}
+
+static void cdrUpdateTransferBuf(const u8 *buf);
+static void cdrReadInterrupt(void);
+static void cdrPrepCdda(s16 *buf, int samples);
+static void cdrAttenuate(s16 *buf, int samples, int stereo);
+
+static void msfiAdd(u8 *msfi, u32 count)
+{
+ assert(count < 75);
+ msfi[2] += count;
+ if (msfi[2] >= 75) {
+ msfi[2] -= 75;
+ msfi[1]++;
+ if (msfi[1] == 60) {
+ msfi[1] = 0;
+ msfi[0]++;
}
+ }
+}
- if (cdr.SetlocPending) {
- memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
- cdr.SetlocPending = 0;
- cdr.m_locationChanged = TRUE;
+static void msfiSub(u8 *msfi, u32 count)
+{
+ assert(count < 75);
+ msfi[2] -= count;
+ if ((s8)msfi[2] < 0) {
+ msfi[2] += 75;
+ msfi[1]--;
+ if ((s8)msfi[1] < 0) {
+ msfi[1] = 60;
+ msfi[0]--;
}
- Find_CurTrack(cdr.SetSectorPlay);
- ReadTrack(cdr.SetSectorPlay);
- cdr.TrackChanged = FALSE;
+ }
+}
+
+void cdrPlayReadInterrupt(void)
+{
+ cdr.LastReadSeekCycles = psxRegs.cycle;
+
+ if (cdr.Reading) {
+ cdrReadInterrupt();
+ return;
}
if (!cdr.Play) return;
CDR_LOG( "CDDA - %d:%d:%d\n",
cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );
+ SetPlaySeekRead(cdr.StatP, STATUS_PLAY);
if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
StopCdda();
+ SetPlaySeekRead(cdr.StatP, 0);
cdr.TrackChanged = TRUE;
}
else {
CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf);
}
- if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
+ if (!cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
cdrPlayInterrupt_Autopause();
- if (CDR_readCDDA && !cdr.Muted && !Config.Cdda) {
+ if (!cdr.Muted && !Config.Cdda) {
+ cdrPrepCdda(read_buf, CD_FRAMESIZE_RAW / 4);
cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1);
- if (SPU_playCDDAchannel)
- SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW);
- }
-
- cdr.SetSectorPlay[2]++;
- if (cdr.SetSectorPlay[2] == 75) {
- cdr.SetSectorPlay[2] = 0;
- cdr.SetSectorPlay[1]++;
- if (cdr.SetSectorPlay[1] == 60) {
- cdr.SetSectorPlay[1] = 0;
- cdr.SetSectorPlay[0]++;
- }
+ SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW, psxRegs.cycle, cdr.FirstSector);
+ cdr.FirstSector = 0;
}
- if (cdr.m_locationChanged)
- {
- CDRMISC_INT(cdReadTime * 30);
- cdr.m_locationChanged = FALSE;
- }
- else
- {
- CDRMISC_INT(cdReadTime);
- }
+ msfiAdd(cdr.SetSectorPlay, 1);
// update for CdlGetlocP/autopause
generate_subq(cdr.SetSectorPlay);
+
+ CDRPLAYREAD_INT(cdReadTime, 0);
}
-void cdrInterrupt() {
- u16 Irq = cdr.Irq;
- int no_busy_error = 0;
+#define CMD_PART2 0x100
+#define CMD_WHILE_NOT_READY 0x200
+
+void cdrInterrupt(void) {
int start_rotating = 0;
int error = 0;
- int delay;
- unsigned int seekTime = 0;
+ u32 cycles, seekTime = 0;
+ u32 second_resp_time = 0;
+ const void *buf;
+ u8 ParamC;
u8 set_loc[3];
+ int read_ok;
+ u16 not_ready = 0;
+ u16 Cmd;
int i;
- // Reschedule IRQ
if (cdr.Stat) {
- CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
- CDR_INT(0x1000);
+ CDR_LOG_I("cmd %02x with irqstat %x\n",
+ cdr.CmdInProgress, cdr.Stat);
+ return;
+ }
+ if (cdr.Irq1Pending) {
+ // hand out the "newest" sector, according to nocash
+ cdrUpdateTransferBuf(CDR_getBuffer());
+ CDR_LOG_I("%x:%02x:%02x loaded on ack, cmd=%02x res=%02x\n",
+ cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2],
+ cdr.CmdInProgress, cdr.Irq1Pending);
+ SetResultSize(1);
+ cdr.Result[0] = cdr.Irq1Pending;
+ cdr.Stat = (cdr.Irq1Pending & STATUS_ERROR) ? DiskError : DataReady;
+ cdr.Irq1Pending = 0;
+ setIrq(0x1003);
return;
}
-
- cdr.Ctrl &= ~0x80;
// default response
SetResultSize(1);
cdr.Result[0] = cdr.StatP;
cdr.Stat = Acknowledge;
- if (cdr.IrqRepeated) {
- cdr.IrqRepeated = 0;
- if (cdr.eCycle > psxRegs.cycle) {
- CDR_INT(cdr.eCycle);
- goto finish;
- }
+ Cmd = cdr.CmdInProgress;
+ cdr.CmdInProgress = 0;
+ ParamC = cdr.ParamC;
+
+ if (Cmd < 0x100) {
+ cdr.Ctrl &= ~0x80;
+ cdr.ParamC = 0;
+ cdr.Cmd = 0;
}
- cdr.Irq = 0;
+ switch (cdr.DriveState) {
+ case DRIVESTATE_PREPARE_CD:
+ if (Cmd > 2) {
+ // Syphon filter 2 expects commands to work shortly after it sees
+ // STATUS_ROTATING, so give up trying to emulate the startup seq
+ cdr.DriveState = DRIVESTATE_STANDBY;
+ cdr.StatP &= ~STATUS_SEEK;
+ psxRegs.interrupt &= ~(1 << PSXINT_CDRLID);
+ break;
+ }
+ // fallthrough
+ case DRIVESTATE_LID_OPEN:
+ case DRIVESTATE_RESCAN_CD:
+ // no disk or busy with the initial scan, allowed cmds are limited
+ not_ready = CMD_WHILE_NOT_READY;
+ break;
+ }
- switch (Irq) {
+ switch (Cmd | not_ready) {
case CdlNop:
+ case CdlNop + CMD_WHILE_NOT_READY:
if (cdr.DriveState != DRIVESTATE_LID_OPEN)
cdr.StatP &= ~STATUS_SHELLOPEN;
- no_busy_error = 1;
break;
case CdlSetloc:
+ case CdlSetloc + CMD_WHILE_NOT_READY:
CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
// MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
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))
{
- CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
+ CDR_LOG_I("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
+ if (++cdr.errorRetryhack > 100)
+ break;
error = ERROR_INVALIDARG;
goto set_error;
}
else
{
for (i = 0; i < 3; i++)
- {
set_loc[i] = btoi(cdr.Param[i]);
- }
-
- i = msf2sec(cdr.SetSectorPlay);
- i = abs(i - msf2sec(set_loc));
- if (i > 16)
- cdr.Seeked = SEEK_PENDING;
-
memcpy(cdr.SetSector, set_loc, 3);
cdr.SetSector[3] = 0;
cdr.SetlocPending = 1;
+ cdr.errorRetryhack = 0;
}
break;
do_CdlPlay:
case CdlPlay:
StopCdda();
- if (cdr.Seeked == SEEK_PENDING) {
- // XXX: wrong, should seek instead..
- cdr.Seeked = SEEK_DONE;
- }
+ StopReading();
cdr.FastBackward = 0;
cdr.FastForward = 0;
- if (cdr.SetlocPending) {
- memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
- cdr.SetlocPending = 0;
- cdr.m_locationChanged = TRUE;
- }
-
// BIOS CD Player
// - Pause player, hit Track 01/02/../xx (Setloc issued!!)
- if (cdr.ParamC == 0 || cdr.Param[0] == 0) {
- CDR_LOG("PLAY Resume @ %d:%d:%d\n",
- cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
- }
- else
- {
+ if (ParamC != 0 && cdr.Param[0] != 0) {
int track = btoi( cdr.Param[0] );
if (track <= cdr.ResultTN[1])
CDR_LOG("PLAY track %d\n", cdr.CurTrack);
if (CDR_getTD((u8)cdr.CurTrack, cdr.ResultTD) != -1) {
- cdr.SetSectorPlay[0] = cdr.ResultTD[2];
- cdr.SetSectorPlay[1] = cdr.ResultTD[1];
- cdr.SetSectorPlay[2] = cdr.ResultTD[0];
+ for (i = 0; i < 3; i++)
+ set_loc[i] = cdr.ResultTD[2 - i];
+ seekTime = cdrSeekTime(set_loc);
+ memcpy(cdr.SetSectorPlay, set_loc, 3);
}
}
+ else if (cdr.SetlocPending) {
+ seekTime = cdrSeekTime(cdr.SetSector);
+ memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
+ }
+ else {
+ CDR_LOG("PLAY Resume @ %d:%d:%d\n",
+ cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2]);
+ }
+ cdr.SetlocPending = 0;
/*
Rayman: detect track changes
- plays tracks without retry play
*/
Find_CurTrack(cdr.SetSectorPlay);
- ReadTrack(cdr.SetSectorPlay);
+ generate_subq(cdr.SetSectorPlay);
+ cdr.LocL[0] = LOCL_INVALID;
+ cdr.SubqForwardSectors = 1;
cdr.TrackChanged = FALSE;
+ cdr.FirstSector = 1;
+ cdr.ReportDelay = 60;
+ cdr.sectorsRead = 0;
if (!Config.Cdda)
- CDR_play();
-
- // Vib Ribbon: gameplay checks flag
- cdr.StatP &= ~STATUS_SEEK;
- cdr.Result[0] = cdr.StatP;
+ CDR_play(cdr.SetSectorPlay);
- cdr.StatP |= STATUS_PLAY;
+ SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING);
// BIOS player - set flag again
cdr.Play = TRUE;
- CDRMISC_INT( cdReadTime );
+ CDRPLAYREAD_INT(cdReadTime + seekTime, 1);
start_rotating = 1;
break;
case CdlForward:
// TODO: error 80 if stopped
cdr.Stat = Complete;
+
// GameShark CD Player: Calls 2x + Play 2x
cdr.FastForward = 1;
cdr.FastBackward = 0;
cdr.Stat = Complete;
// GameShark CD Player: Calls 2x + Play 2x
- cdr.FastBackward =1;
+ cdr.FastBackward = 1;
cdr.FastForward = 0;
break;
error = ERROR_INVALIDARG;
goto set_error;
}
- AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
+ second_resp_time = cdReadTime * 125 / 2;
start_rotating = 1;
break;
- case CdlStandby + 0x100:
+ case CdlStandby + CMD_PART2:
cdr.Stat = Complete;
break;
StopCdda();
StopReading();
+ SetPlaySeekRead(cdr.StatP, 0);
+ cdr.StatP &= ~STATUS_ROTATING;
+ cdr.LocL[0] = LOCL_INVALID;
- delay = 0x800;
+ second_resp_time = 0x800;
if (cdr.DriveState == DRIVESTATE_STANDBY)
- delay = cdReadTime * 30 / 2;
+ second_resp_time = cdReadTime * 30 / 2;
cdr.DriveState = DRIVESTATE_STOPPED;
- AddIrqQueue(CdlStop + 0x100, delay);
break;
- case CdlStop + 0x100:
- cdr.StatP &= ~STATUS_ROTATING;
- cdr.Result[0] = cdr.StatP;
+ case CdlStop + CMD_PART2:
cdr.Stat = Complete;
break;
case CdlPause:
+ StopCdda();
+ StopReading();
+
+ // how the drive maintains the position while paused is quite
+ // complicated, this is the minimum to make "Bedlam" happy
+ msfiSub(cdr.SetSectorPlay, MIN_VALUE(cdr.sectorsRead, 4));
+ cdr.sectorsRead = 0;
+
/*
Gundam Battle Assault 2: much slower (*)
- Fixes boot, gameplay
+
Hokuto no Ken 2: slower
- Fixes intro + subtitles
+
InuYasha - Feudal Fairy Tale: slower
- Fixes battles
*/
* The timings from Duckstation are based upon hardware tests.
* Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode,
* seems to be timing sensitive as it can depend on the CPU's clock speed.
- *
- * We will need to get around this for Bedlam/Rise 2 later...
* */
- if (cdr.DriveState == DRIVESTATE_STANDBY)
+ if (!(cdr.StatP & (STATUS_PLAY | STATUS_READ)))
{
- delay = 7000;
+ second_resp_time = 7000;
}
else
{
- delay = (((cdr.Mode & MODE_SPEED) ? 2 : 1) * (1000000));
- CDRMISC_INT((cdr.Mode & MODE_SPEED) ? cdReadTime / 2 : cdReadTime);
+ second_resp_time = (((cdr.Mode & MODE_SPEED) ? 1 : 2) * 1097107);
}
- AddIrqQueue(CdlPause + 0x100, delay);
- cdr.Ctrl |= 0x80;
+ SetPlaySeekRead(cdr.StatP, 0);
break;
- case CdlPause + 0x100:
- cdr.StatP &= ~STATUS_READ;
- cdr.Result[0] = cdr.StatP;
+ case CdlPause + CMD_PART2:
cdr.Stat = Complete;
break;
case CdlReset:
+ case CdlReset + CMD_WHILE_NOT_READY:
+ StopCdda();
+ StopReading();
+ SetPlaySeekRead(cdr.StatP, 0);
+ cdr.LocL[0] = LOCL_INVALID;
cdr.Muted = FALSE;
- cdr.Mode = 0x20; /* Needed for This is Football 2, Pooh's Party and possibly others. */
- AddIrqQueue(CdlReset + 0x100, 4100000);
- no_busy_error = 1;
+ cdr.Mode = MODE_SIZE_2340; /* This fixes This is Football 2, Pooh's Party lockups */
+ second_resp_time = not_ready ? 70000 : 4100000;
start_rotating = 1;
break;
- case CdlReset + 0x100:
+ case CdlReset + CMD_PART2:
+ case CdlReset + CMD_PART2 + CMD_WHILE_NOT_READY:
cdr.Stat = Complete;
break;
break;
case CdlSetmode:
- no_busy_error = 1;
+ case CdlSetmode + CMD_WHILE_NOT_READY:
+ CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
+ cdr.Mode = cdr.Param[0];
break;
case CdlGetparam:
+ case CdlGetparam + CMD_WHILE_NOT_READY:
+ /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */
SetResultSize(5);
cdr.Result[1] = cdr.Mode;
cdr.Result[2] = 0;
cdr.Result[3] = cdr.File;
cdr.Result[4] = cdr.Channel;
- no_busy_error = 1;
break;
case CdlGetlocL:
+ if (cdr.LocL[0] == LOCL_INVALID) {
+ error = 0x80;
+ goto set_error;
+ }
SetResultSize(8);
- memcpy(cdr.Result, cdr.Transfer, 8);
+ memcpy(cdr.Result, cdr.LocL, 8);
break;
case CdlGetlocP:
case CdlReadT: // SetSession?
// really long
- AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
+ second_resp_time = cdReadTime * 290 / 4;
start_rotating = 1;
break;
- case CdlReadT + 0x100:
+ case CdlReadT + CMD_PART2:
cdr.Stat = Complete;
break;
case CdlSeekP:
StopCdda();
StopReading();
- cdr.StatP |= STATUS_SEEK;
+ SetPlaySeekRead(cdr.StatP, STATUS_SEEK | STATUS_ROTATING);
+ seekTime = cdrSeekTime(cdr.SetSector);
+ memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
/*
Crusaders of Might and Magic = 0.5x-4x
- fix cutscene speech start
Rockman X5 = 0.5-4x
- fix capcom logo
*/
- CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
- cdr.Seeked = SEEK_PENDING;
+ second_resp_time = cdReadTime + seekTime;
start_rotating = 1;
break;
+ case CdlSeekL + CMD_PART2:
+ case CdlSeekP + CMD_PART2:
+ SetPlaySeekRead(cdr.StatP, 0);
+ cdr.Result[0] = cdr.StatP;
+ cdr.Stat = Complete;
+
+ Find_CurTrack(cdr.SetSectorPlay);
+ read_ok = ReadTrack(cdr.SetSectorPlay);
+ if (read_ok && (buf = CDR_getBuffer()))
+ memcpy(cdr.LocL, buf, 8);
+ UpdateSubq(cdr.SetSectorPlay);
+ cdr.TrackChanged = FALSE;
+ cdr.LastReadSeekCycles = psxRegs.cycle;
+ break;
+
case CdlTest:
+ case CdlTest + CMD_WHILE_NOT_READY:
switch (cdr.Param[0]) {
case 0x20: // System Controller ROM Version
SetResultSize(4);
memcpy(cdr.Result, Test23, 4);
break;
}
- no_busy_error = 1;
break;
case CdlID:
- AddIrqQueue(CdlID + 0x100, 20480);
+ second_resp_time = 20480;
break;
- case CdlID + 0x100:
+ case CdlID + CMD_PART2:
SetResultSize(8);
cdr.Result[0] = cdr.StatP;
cdr.Result[1] = 0;
break;
case CdlInit:
+ case CdlInit + CMD_WHILE_NOT_READY:
+ StopCdda();
+ StopReading();
+ SetPlaySeekRead(cdr.StatP, 0);
// yes, it really sets STATUS_SHELLOPEN
cdr.StatP |= STATUS_SHELLOPEN;
cdr.DriveState = DRIVESTATE_RESCAN_CD;
- CDRLID_INT(20480);
- no_busy_error = 1;
+ set_event(PSXINT_CDRLID, 20480);
start_rotating = 1;
break;
case CdlGetQ:
- no_busy_error = 1;
+ case CdlGetQ + CMD_WHILE_NOT_READY:
break;
case CdlReadToc:
- AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
- no_busy_error = 1;
+ case CdlReadToc + CMD_WHILE_NOT_READY:
+ cdr.LocL[0] = LOCL_INVALID;
+ second_resp_time = cdReadTime * 180 / 4;
start_rotating = 1;
break;
- case CdlReadToc + 0x100:
+ case CdlReadToc + CMD_PART2:
+ case CdlReadToc + CMD_PART2 + CMD_WHILE_NOT_READY:
cdr.Stat = Complete;
- no_busy_error = 1;
break;
case CdlReadN:
case CdlReadS:
- if (cdr.SetlocPending) {
- seekTime = abs(msf2sec(cdr.SetSectorPlay) - msf2sec(cdr.SetSector)) * (cdReadTime / 200);
- /*
- * Gameblabla :
- * It was originally set to 1000000 for Driver, however it is not high enough for Worms Pinball
- * and was unreliable for that game.
- * I also tested it against Mednafen and Driver's titlescreen music starts 25 frames later, not immediatly.
- *
- * Obviously, this isn't perfect but right now, it should be a bit better.
- * Games to test this against if you change that setting :
- * - Driver (titlescreen music delay and retry mission)
- * - Worms Pinball (Will either not boot or crash in the memory card screen)
- * - Viewpoint (short pauses if the delay in the ingame music is too long)
- *
- * It seems that 3386880 * 5 is too much for Driver's titlescreen and it starts skipping.
- * However, 1000000 is not enough for Worms Pinball to reliably boot.
- */
- if(seekTime > 3386880 * 2) seekTime = 3386880 * 2;
- memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
- cdr.SetlocPending = 0;
- cdr.m_locationChanged = TRUE;
- }
- Find_CurTrack(cdr.SetSectorPlay);
+ if (cdr.Reading && !cdr.SetlocPending)
+ break;
+
+ Find_CurTrack(cdr.SetlocPending ? cdr.SetSector : cdr.SetSectorPlay);
if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
// Read* acts as play for cdda tracks in cdda mode
goto do_CdlPlay;
+ StopCdda();
+ if (cdr.SetlocPending) {
+ seekTime = cdrSeekTime(cdr.SetSector);
+ memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
+ cdr.SetlocPending = 0;
+ }
cdr.Reading = 1;
cdr.FirstSector = 1;
// Fighting Force 2 - update subq time immediately
// - fixes new game
- ReadTrack(cdr.SetSectorPlay);
-
-
- // Crusaders of Might and Magic - update getlocl now
- // - fixes cutscene speech
- {
- u8 *buf = CDR_getBuffer();
- if (buf != NULL)
- memcpy(cdr.Transfer, buf, 8);
- }
-
- /*
- Duke Nukem: Land of the Babes - seek then delay read for one frame
- - fixes cutscenes
- C-12 - Final Resistance - doesn't like seek
- */
-
- /*
- By nicolasnoble from PCSX Redux :
- "It LOOKS like this logic is wrong, therefore disabling it with `&& false` for now.
- For "PoPoLoCrois Monogatari II", the game logic will soft lock and will never issue GetLocP to detect
- the end of its XA streams, as it seems to assume ReadS will not return a status byte with the SEEK
- flag set. I think the reasonning is that since it's invalid to call GetLocP while seeking, the game
- tries to protect itself against errors by preventing from issuing a GetLocP while it knows the
- last status was "seek". But this makes the logic just softlock as it'll never get a notification
- about the fact the drive is done seeking and the read actually started.
- In other words, this state machine here is probably wrong in assuming the response to ReadS/ReadN is
- done right away. It's rather when it's done seeking, and the read has actually started. This probably
- requires a bit more work to make sure seek delays are processed properly.
- Checked with a few games, this seems to work fine."
-
- Gameblabla additional notes :
- This still needs the "+ seekTime" that PCSX Redux doesn't have for the Driver "retry" mission error.
- */
- cdr.StatP |= STATUS_READ;
- cdr.StatP &= ~STATUS_SEEK;
- CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime);
-
- cdr.Result[0] = cdr.StatP;
+ UpdateSubq(cdr.SetSectorPlay);
+ cdr.LocL[0] = LOCL_INVALID;
+ cdr.SubqForwardSectors = 1;
+ cdr.sectorsRead = 0;
+
+ cycles = (cdr.Mode & MODE_SPEED) ? cdReadTime : cdReadTime * 2;
+ cycles += seekTime;
+ if (Config.hacks.cdr_read_timing)
+ cycles = cdrAlignTimingHack(cycles);
+ CDRPLAYREAD_INT(cycles, 1);
+
+ SetPlaySeekRead(cdr.StatP, STATUS_SEEK);
start_rotating = 1;
break;
case CdlSync:
default:
- CDR_LOG_I("Invalid command: %02x\n", Irq);
error = ERROR_INVALIDCMD;
// FALLTHROUGH
set_error:
+ CDR_LOG_I("cmd %02x error %02x\n", Cmd, error);
SetResultSize(2);
cdr.Result[0] = cdr.StatP | STATUS_ERROR;
- cdr.Result[1] = error;
+ cdr.Result[1] = not_ready ? ERROR_NOTREADY : error;
cdr.Stat = DiskError;
break;
}
cdr.StatP |= STATUS_ROTATING;
}
- if (!no_busy_error) {
- switch (cdr.DriveState) {
- case DRIVESTATE_LID_OPEN:
- case DRIVESTATE_RESCAN_CD:
- case DRIVESTATE_PREPARE_CD:
- SetResultSize(2);
- cdr.Result[0] = cdr.StatP | STATUS_ERROR;
- cdr.Result[1] = ERROR_NOTREADY;
- cdr.Stat = DiskError;
- break;
- }
+ if (second_resp_time) {
+ cdr.CmdInProgress = Cmd | 0x100;
+ set_event(PSXINT_CDR, second_resp_time);
}
-
-finish:
- setIrq();
- cdr.ParamC = 0;
-
-#ifdef CDR_LOG_CMD_IRQ
- {
- int i;
- SysPrintf("CDR IRQ %d cmd %02x stat %02x: ",
- !!(cdr.Stat & cdr.Reg2), Irq, cdr.Stat);
- for (i = 0; i < cdr.ResultC; i++)
- SysPrintf("%02x ", cdr.Result[i]);
- SysPrintf("\n");
+ else if (cdr.Cmd && cdr.Cmd != (Cmd & 0xff)) {
+ cdr.CmdInProgress = cdr.Cmd;
+ CDR_LOG_I("cmd %02x came before %02x finished\n", cdr.Cmd, Cmd);
}
-#endif
+
+ setIrq(Cmd);
}
#ifdef HAVE_ARMV7
} while (0)
#endif
-void cdrAttenuate(s16 *buf, int samples, int stereo)
+static void cdrPrepCdda(s16 *buf, int samples)
+{
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+ int i;
+ for (i = 0; i < samples; i++) {
+ buf[i * 2 + 0] = SWAP16(buf[i * 2 + 0]);
+ buf[i * 2 + 1] = SWAP16(buf[i * 2 + 1]);
+ }
+#endif
+}
+
+static void cdrAttenuate(s16 *buf, int samples, int stereo)
{
int i, l, r;
int ll = cdr.AttenuatorLeftToLeft;
}
}
-void cdrReadInterrupt() {
- u8 *buf;
+static void cdrReadInterruptSetResult(unsigned char result)
+{
+ if (cdr.Stat) {
+ CDR_LOG_I("%d:%02d:%02d irq miss, cmd=%02x irqstat=%02x\n",
+ cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2],
+ cdr.CmdInProgress, cdr.Stat);
+ cdr.Irq1Pending = result;
+ return;
+ }
+ SetResultSize(1);
+ cdr.Result[0] = result;
+ cdr.Stat = (result & STATUS_ERROR) ? DiskError : DataReady;
+ setIrq(0x1004);
+}
- if (!cdr.Reading)
+static void cdrUpdateTransferBuf(const u8 *buf)
+{
+ if (!buf)
return;
+ memcpy(cdr.Transfer, buf, DATA_SIZE);
+ CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
+ CDR_LOG("cdr.Transfer %02x:%02x:%02x\n",
+ cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
+ if (cdr.FifoOffset < 2048 + 12)
+ CDR_LOG("FifoOffset(1) %d/%d\n", cdr.FifoOffset, cdr.FifoSize);
+}
- if (cdr.Irq || cdr.Stat) {
- CDR_LOG_I("cdrom: read stat hack %02x %x\n", cdr.Irq, cdr.Stat);
- CDREAD_INT(0x1000);
+static void cdrReadInterrupt(void)
+{
+ u8 *buf = NULL, *hdr;
+ u8 subqPos[3];
+ int read_ok;
+
+ memcpy(subqPos, cdr.SetSectorPlay, sizeof(subqPos));
+ msfiAdd(subqPos, cdr.SubqForwardSectors);
+ UpdateSubq(subqPos);
+ if (cdr.SubqForwardSectors < SUBQ_FORWARD_SECTORS) {
+ cdr.SubqForwardSectors++;
+ CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0);
return;
}
- cdr.OCUP = 1;
- SetResultSize(1);
- cdr.StatP |= STATUS_READ|STATUS_ROTATING;
- cdr.StatP &= ~STATUS_SEEK;
- cdr.Result[0] = cdr.StatP;
- cdr.Seeked = SEEK_DONE;
-
- ReadTrack(cdr.SetSectorPlay);
+ // note: CdlGetlocL should work as soon as STATUS_READ is indicated
+ SetPlaySeekRead(cdr.StatP, STATUS_READ | STATUS_ROTATING);
+ cdr.sectorsRead++;
- buf = CDR_getBuffer();
+ read_ok = ReadTrack(cdr.SetSectorPlay);
+ if (read_ok)
+ buf = CDR_getBuffer();
if (buf == NULL)
- cdr.NoErr = 0;
+ read_ok = 0;
- if (cdr.NoErr == 0) {
+ if (!read_ok) {
CDR_LOG_I("cdrReadInterrupt() Log: err\n");
- memset(cdr.Transfer, 0, DATA_SIZE);
- cdr.Stat = DiskError;
- cdr.Result[0] |= STATUS_ERROR;
- CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime);
+ cdrReadInterruptSetResult(cdr.StatP | STATUS_ERROR);
return;
}
+ memcpy(cdr.LocL, buf, 8);
- memcpy(cdr.Transfer, buf, DATA_SIZE);
- CheckPPFCache(cdr.Transfer, cdr.Prev[0], cdr.Prev[1], cdr.Prev[2]);
-
-
- CDR_LOG("cdrReadInterrupt() Log: cdr.Transfer %x:%x:%x\n", cdr.Transfer[0], cdr.Transfer[1], cdr.Transfer[2]);
+ if (!cdr.Stat && !cdr.Irq1Pending)
+ cdrUpdateTransferBuf(buf);
if ((!cdr.Muted) && (cdr.Mode & MODE_STRSND) && (!Config.Xa) && (cdr.FirstSector != -1)) { // CD-XA
+ hdr = buf + 4;
// Firemen 2: Multi-XA files - briefings, cutscenes
if( cdr.FirstSector == 1 && (cdr.Mode & MODE_SF)==0 ) {
- cdr.File = cdr.Transfer[4 + 0];
- cdr.Channel = cdr.Transfer[4 + 1];
+ cdr.File = hdr[0];
+ cdr.Channel = hdr[1];
}
/* Gameblabla
* Fixes missing audio in Blue's Clues : Blue's Big Musical. (Should also fix Taxi 2)
* TODO : Check if this is the proper behaviour.
* */
- if((cdr.Transfer[4 + 2] & 0x4) &&
- (cdr.Transfer[4 + 1] == cdr.Channel) &&
- (cdr.Transfer[4 + 0] == cdr.File) && cdr.Channel != 255) {
- int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
+ if ((hdr[2] & 0x4) && hdr[0] == cdr.File && hdr[1] == cdr.Channel && cdr.Channel != 255) {
+ int ret = xa_decode_sector(&cdr.Xa, buf + 4, cdr.FirstSector);
if (!ret) {
cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
- /*
- * Gameblabla -
- * This is a hack for Megaman X4, Castlevania etc...
- * that regressed from the new m_locationChanged and CDROM timings changes.
- * It is mostly noticeable in Castevania however and the stuttering can be very jarring.
- *
- * According to PCSX redux authors, we shouldn't cause a location change if
- * the sector difference is too small.
- * I attempted to go with that approach but came empty handed.
- * So for now, let's just set cdr.m_locationChanged to false when playing back any ADPCM samples.
- * This does not regress Crash Team Racing's intro at least.
- */
- cdr.m_locationChanged = FALSE;
- SPU_playADPCMchannel(&cdr.Xa);
+ SPU_playADPCMchannel(&cdr.Xa, psxRegs.cycle, cdr.FirstSector);
cdr.FirstSector = 0;
}
else cdr.FirstSector = -1;
}
}
- cdr.SetSectorPlay[2]++;
- if (cdr.SetSectorPlay[2] == 75) {
- cdr.SetSectorPlay[2] = 0;
- cdr.SetSectorPlay[1]++;
- if (cdr.SetSectorPlay[1] == 60) {
- cdr.SetSectorPlay[1] = 0;
- cdr.SetSectorPlay[0]++;
- }
- }
-
- cdr.Readed = 0;
-
- uint32_t delay = (cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime;
- if (cdr.m_locationChanged) {
- CDREAD_INT(delay * 30);
- cdr.m_locationChanged = FALSE;
- } else {
- CDREAD_INT(delay);
- }
-
/*
Croc 2: $40 - only FORM1 (*)
Judge Dredd: $C8 - only FORM1 (*)
Sim Theme Park - no adpcm at all (zero)
*/
- if (!(cdr.Mode & MODE_STRSND) || !(cdr.Transfer[4+2] & 0x4)) {
- cdr.Stat = DataReady;
- setIrq();
- }
+ if (!(cdr.Mode & MODE_STRSND) || !(buf[4+2] & 0x4))
+ cdrReadInterruptSetResult(cdr.StatP);
- // update for CdlGetlocP
- ReadTrack(cdr.SetSectorPlay);
+ msfiAdd(cdr.SetSectorPlay, 1);
+
+ CDRPLAYREAD_INT((cdr.Mode & MODE_SPEED) ? (cdReadTime / 2) : cdReadTime, 0);
}
/*
else
cdr.Ctrl &= ~0x20;
- if (cdr.OCUP)
- cdr.Ctrl |= 0x40;
-// else
-// cdr.Ctrl &= ~0x40;
+ cdr.Ctrl |= 0x40; // data fifo not empty
// What means the 0x10 and the 0x08 bits? I only saw it used by the bios
cdr.Ctrl |= 0x18;
- CDR_LOG_IO("cdr r0: %02x\n", cdr.Ctrl);
+ CDR_LOG_IO("cdr r0.sta: %02x\n", cdr.Ctrl);
return psxHu8(0x1800) = cdr.Ctrl;
}
void cdrWrite0(unsigned char rt) {
- CDR_LOG_IO("cdr w0: %02x\n", rt);
+ CDR_LOG_IO("cdr w0.idx: %02x\n", rt);
cdr.Ctrl = (rt & 3) | (cdr.Ctrl & ~3);
}
if (cdr.ResultP == cdr.ResultC)
cdr.ResultReady = 0;
- CDR_LOG_IO("cdr r1: %02x\n", psxHu8(0x1801));
+ CDR_LOG_IO("cdr r1.rsp: %02x #%u\n", psxHu8(0x1801), cdr.ResultP - 1);
return psxHu8(0x1801);
}
void cdrWrite1(unsigned char rt) {
- CDR_LOG_IO("cdr w1: %02x\n", rt);
+ const char *rnames[] = { "cmd", "smd", "smc", "arr" }; (void)rnames;
+ CDR_LOG_IO("cdr w1.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
switch (cdr.Ctrl & 3) {
case 0:
return;
}
- cdr.Cmd = rt;
- cdr.OCUP = 0;
-
#ifdef CDR_LOG_CMD_IRQ
- SysPrintf("CD1 write: %x (%s)", rt, CmdName[rt]);
+ CDR_LOG_I("CD1 write: %x (%s)", rt, CmdName[rt]);
if (cdr.ParamC) {
+ int i;
SysPrintf(" Param[%d] = {", cdr.ParamC);
for (i = 0; i < cdr.ParamC; i++)
SysPrintf(" %x,", cdr.Param[i]);
cdr.ResultReady = 0;
cdr.Ctrl |= 0x80;
- // cdr.Stat = NoIntr;
- AddIrqQueue(cdr.Cmd, 0x800);
- switch (cdr.Cmd) {
- case CdlReadN:
- case CdlReadS:
- case CdlPause:
- StopCdda();
- StopReading();
- break;
-
- case CdlInit:
- case CdlReset:
- cdr.Seeked = SEEK_DONE;
- StopCdda();
- StopReading();
- break;
-
- case CdlSetmode:
- CDR_LOG("cdrWrite1() Log: Setmode %x\n", cdr.Param[0]);
-
- cdr.Mode = cdr.Param[0];
-
- // Squaresoft on PlayStation 1998 Collector's CD Vol. 1
- // - fixes choppy movie sound
- if( cdr.Play && (cdr.Mode & MODE_CDDA) == 0 )
- StopCdda();
- break;
+ if (!cdr.CmdInProgress) {
+ cdr.CmdInProgress = rt;
+ // should be something like 12k + controller delays
+ set_event(PSXINT_CDR, 5000);
}
+ else {
+ CDR_LOG_I("cmd while busy: %02x, prev %02x, busy %02x\n",
+ rt, cdr.Cmd, cdr.CmdInProgress);
+ if (cdr.CmdInProgress < 0x100) // no pending 2nd response
+ cdr.CmdInProgress = rt;
+ }
+
+ cdr.Cmd = rt;
}
unsigned char cdrRead2(void) {
- unsigned char ret;
+ unsigned char ret = cdr.Transfer[0x920];
- if (cdr.Readed == 0) {
- ret = 0;
- } else {
- ret = *pTransfer++;
- }
+ if (cdr.FifoOffset < cdr.FifoSize)
+ ret = cdr.Transfer[cdr.FifoOffset++];
+ else
+ CDR_LOG_I("read empty fifo (%d)\n", cdr.FifoSize);
- CDR_LOG_IO("cdr r2: %02x\n", ret);
+ CDR_LOG_IO("cdr r2.dat: %02x\n", ret);
return ret;
}
void cdrWrite2(unsigned char rt) {
- CDR_LOG_IO("cdr w2: %02x\n", rt);
+ const char *rnames[] = { "prm", "ien", "all", "arl" }; (void)rnames;
+ CDR_LOG_IO("cdr w2.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
switch (cdr.Ctrl & 3) {
case 0:
return;
case 1:
cdr.Reg2 = rt;
- setIrq();
+ setIrq(0x1005);
return;
case 2:
cdr.AttenuatorLeftToLeftT = rt;
else
psxHu8(0x1803) = cdr.Reg2 | 0xE0;
- CDR_LOG_IO("cdr r3: %02x\n", psxHu8(0x1803));
+ CDR_LOG_IO("cdr r3.%s: %02x\n", (cdr.Ctrl & 1) ? "ifl" : "ien", psxHu8(0x1803));
return psxHu8(0x1803);
}
void cdrWrite3(unsigned char rt) {
- CDR_LOG_IO("cdr w3: %02x\n", rt);
+ const char *rnames[] = { "req", "ifl", "alr", "ava" }; (void)rnames;
+ CDR_LOG_IO("cdr w3.%s: %02x\n", rnames[cdr.Ctrl & 3], rt);
switch (cdr.Ctrl & 3) {
case 0:
break; // transfer
case 1:
+ if (cdr.Stat & rt) {
+ u32 nextCycle = psxRegs.intCycle[PSXINT_CDR].sCycle
+ + psxRegs.intCycle[PSXINT_CDR].cycle;
+ int pending = psxRegs.interrupt & (1 << PSXINT_CDR);
+#ifdef CDR_LOG_CMD_IRQ
+ CDR_LOG_I("ack %02x (w=%02x p=%d,%x,%x,%d)\n", cdr.Stat & rt, rt,
+ !!pending, cdr.CmdInProgress,
+ cdr.Irq1Pending, nextCycle - psxRegs.cycle);
+#endif
+ // note: Croc, Shadow Tower (more) vs Discworld Noir (<993)
+ if (!pending && (cdr.CmdInProgress || cdr.Irq1Pending))
+ {
+ s32 c = 2048;
+ if (cdr.CmdInProgress) {
+ c = 2048 - (psxRegs.cycle - nextCycle);
+ c = MAX_VALUE(c, 512);
+ }
+ set_event(PSXINT_CDR, c);
+ }
+ }
cdr.Stat &= ~rt;
if (rt & 0x40)
case 3:
if (rt & 0x20) {
memcpy(&cdr.AttenuatorLeftToLeft, &cdr.AttenuatorLeftToLeftT, 4);
- CDR_LOG_I("CD-XA Volume: %02x %02x | %02x %02x\n",
+ CDR_LOG("CD-XA Volume: %02x %02x | %02x %02x\n",
cdr.AttenuatorLeftToLeft, cdr.AttenuatorLeftToRight,
cdr.AttenuatorRightToLeft, cdr.AttenuatorRightToRight);
}
return;
}
- if ((rt & 0x80) && cdr.Readed == 0) {
- cdr.Readed = 1;
- pTransfer = cdr.Transfer;
-
- switch (cdr.Mode & 0x30) {
+ // test: Viewpoint
+ if ((rt & 0x80) && cdr.FifoOffset < cdr.FifoSize) {
+ CDR_LOG("cdrom: FifoOffset(2) %d/%d\n", cdr.FifoOffset, cdr.FifoSize);
+ }
+ else if (rt & 0x80) {
+ switch (cdr.Mode & (MODE_SIZE_2328|MODE_SIZE_2340)) {
case MODE_SIZE_2328:
case 0x00:
- pTransfer += 12;
+ cdr.FifoOffset = 12;
+ cdr.FifoSize = 2048 + 12;
break;
case MODE_SIZE_2340:
- pTransfer += 0;
- break;
-
default:
+ cdr.FifoOffset = 0;
+ cdr.FifoSize = 2340;
break;
}
}
+ else if (!(rt & 0xc0))
+ cdr.FifoOffset = DATA_SIZE; // fifo empty
}
void psxDma3(u32 madr, u32 bcr, u32 chcr) {
- u32 cdsize;
+ u32 cdsize, max_words;
int size;
u8 *ptr;
- CDR_LOG("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x\n", chcr, madr, bcr);
+#if 0
+ CDR_LOG_I("psxDma3() Log: *** DMA 3 *** %x addr = %x size = %x", chcr, madr, bcr);
+ if (cdr.FifoOffset == 0) {
+ ptr = cdr.Transfer;
+ SysPrintf(" %02x:%02x:%02x", ptr[0], ptr[1], ptr[2]);
+ }
+ SysPrintf("\n");
+#endif
- switch (chcr) {
+ switch (chcr & 0x71000000) {
case 0x11000000:
- case 0x11400100:
- if (cdr.Readed == 0) {
- CDR_LOG("psxDma3() Log: *** DMA 3 *** NOT READY\n");
+ ptr = getDmaRam(madr, &max_words);
+ if (ptr == INVALID_PTR) {
+ CDR_LOG_I("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
break;
}
- cdsize = (bcr & 0xffff) * 4;
-
- // Ape Escape: bcr = 0001 / 0000
- // - fix boot
- if( cdsize == 0 )
- {
- switch (cdr.Mode & (MODE_SIZE_2340|MODE_SIZE_2328)) {
- case MODE_SIZE_2340: cdsize = 2340; break;
- case MODE_SIZE_2328: cdsize = 2328; break;
- default:
- case MODE_SIZE_2048: cdsize = 2048; break;
- }
- }
-
-
- ptr = (u8 *)PSXM(madr);
- if (ptr == NULL) {
- CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
- break;
- }
+ cdsize = (((bcr - 1) & 0xffff) + 1) * 4;
/*
GS CDX: Enhancement CD crash
- CdlPlay
- Spams DMA3 and gets buffer overrun
*/
- size = CD_FRAMESIZE_RAW - (pTransfer - cdr.Transfer);
+ size = DATA_SIZE - cdr.FifoOffset;
if (size > cdsize)
size = cdsize;
+ if (size > max_words * 4)
+ size = max_words * 4;
if (size > 0)
{
- memcpy(ptr, pTransfer, size);
+ memcpy(ptr, cdr.Transfer + cdr.FifoOffset, size);
+ cdr.FifoOffset += size;
+ }
+ if (size < cdsize) {
+ CDR_LOG_I("cdrom: dma3 %d/%d\n", size, cdsize);
+ memset(ptr + size, cdr.Transfer[0x920], cdsize - size);
}
-
psxCpu->Clear(madr, cdsize / 4);
- pTransfer += cdsize;
- if( chcr == 0x11400100 ) {
+ set_event(PSXINT_CDRDMA, (cdsize / 4) * 24);
+
+ HW_DMA3_CHCR &= SWAPu32(~0x10000000);
+ if (chcr & 0x100) {
HW_DMA3_MADR = SWAPu32(madr + cdsize);
- CDRDMA_INT( (cdsize/4) / 4 );
+ HW_DMA3_BCR &= SWAPu32(0xffff0000);
}
- else if( chcr == 0x11000000 ) {
- // CDRDMA_INT( (cdsize/4) * 1 );
+ else {
// halted
- psxRegs.cycle += (cdsize/4) * 24/2;
- CDRDMA_INT(16);
+ psxRegs.cycle += (cdsize/4) * 24 - 20;
}
return;
default:
- CDR_LOG("psxDma3() Log: Unknown cddma %x\n", chcr);
+ CDR_LOG_I("psxDma3() Log: Unknown cddma %x\n", chcr);
break;
}
DMA_INTERRUPT(3);
}
-void cdrDmaInterrupt()
+void cdrDmaInterrupt(void)
{
if (HW_DMA3_CHCR & SWAP32(0x01000000))
{
cdr.Channel = 1;
cdr.Reg2 = 0x1f;
cdr.Stat = NoIntr;
- cdr.DriveState = DRIVESTATE_STANDBY;
- cdr.StatP = STATUS_ROTATING;
- pTransfer = cdr.Transfer;
- cdr.SetlocPending = 0;
- cdr.m_locationChanged = FALSE;
-
+ cdr.FifoOffset = DATA_SIZE; // fifo empty
+ if (CdromId[0] == '\0') {
+ cdr.DriveState = DRIVESTATE_STOPPED;
+ cdr.StatP = 0;
+ }
+ else {
+ cdr.DriveState = DRIVESTATE_STANDBY;
+ cdr.StatP = STATUS_ROTATING;
+ }
+
// BIOS player - default values
cdr.AttenuatorLeftToLeft = 0x80;
cdr.AttenuatorLeftToRight = 0x00;
if (Mode == 1) {
cdr.ParamP = cdr.ParamC;
- tmp = pTransfer - cdr.Transfer;
+ tmp = cdr.FifoOffset;
}
gzfreeze(&tmp, sizeof(tmp));
if (Mode == 0) {
getCdInfo();
- pTransfer = cdr.Transfer + tmp;
+ cdr.FifoOffset = tmp < DATA_SIZE ? tmp : DATA_SIZE;
+ cdr.FifoSize = (cdr.Mode & MODE_SIZE_2340) ? 2340 : 2048 + 12;
+ if (cdr.SubqForwardSectors > SUBQ_FORWARD_SECTORS)
+ cdr.SubqForwardSectors = SUBQ_FORWARD_SECTORS;
// read right sub data
tmpp[0] = btoi(cdr.Prev[0]);
Find_CurTrack(cdr.SetSectorPlay);
if (!Config.Cdda)
- CDR_play();
+ CDR_play(cdr.SetSectorPlay);
}
if ((cdr.freeze_ver & 0xffffff00) != 0x63647200) {
return 0;
}
-void LidInterrupt() {
+void LidInterrupt(void) {
getCdInfo();
- StopCdda();
cdrLidSeekInterrupt();
}