Exemple #1
0
// also handles seek
void cdrPlayInterrupt()
{
	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();
		}

		if (cdr.SetlocPending) {
			memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
			cdr.SetlocPending = 0;
		}
		Find_CurTrack(cdr.SetSectorPlay);
		ReadTrack(cdr.SetSectorPlay);
		cdr.TrackChanged = FALSE;
	}

	if (!cdr.Play) return;

	CDR_LOG( "CDDA - %d:%d:%d\n",
		cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );

	if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
		StopCdda();
		cdr.TrackChanged = TRUE;
	}

	if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
		cdrPlayInterrupt_Autopause();

	if (!cdr.Play) return;

	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]++;
		}
	}

	CDRMISC_INT(cdReadTime);

	// update for CdlGetlocP/autopause
	generate_subq(cdr.SetSectorPlay);
}
Exemple #2
0
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);
}
Exemple #3
0
static void ReadTrack(const u8 *time)
{
	unsigned char tmp[3];
	struct SubQ *subq;
	u16 crc;

	tmp[0] = itob(time[0]);
	tmp[1] = itob(time[1]);
	tmp[2] = itob(time[2]);

	if (memcmp(cdr.Prev, tmp, 3) == 0)
		return;

	CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);

	cdr.RErr = CDR_readTrack(tmp);
	memcpy(cdr.Prev, tmp, 3);

	//senquack - PPF patch file support; not yet added (TODO?)
#if 0
	if (CheckSBI(time))
		return;
#endif

	subq = (struct SubQ *)CDR_getBufferSub();
	if (subq != NULL && cdr.CurTrack == 1) {
		crc = calcCrc((u8 *)subq + 12, 10);
		if (crc == (((u16)subq->CRC[0] << 8) | subq->CRC[1])) {
			cdr.subq.Track = subq->TrackNumber;
			cdr.subq.Index = subq->IndexNumber;
			memcpy(cdr.subq.Relative, subq->TrackRelativeAddress, 3);
			memcpy(cdr.subq.Absolute, subq->AbsoluteAddress, 3);
		}
		else {
			CDR_LOG_I("subq bad crc @%02x:%02x:%02x\n",
				tmp[0], tmp[1], tmp[2]);
		}
	}
	else {
		generate_subq(time);
	}

	CDR_LOG(" -> %02x,%02x %02x:%02x:%02x %02x:%02x:%02x\n",
		cdr.subq.Track, cdr.subq.Index,
		cdr.subq.Relative[0], cdr.subq.Relative[1], cdr.subq.Relative[2],
		cdr.subq.Absolute[0], cdr.subq.Absolute[1], cdr.subq.Absolute[2]);
}
Exemple #4
0
void cdrInterrupt() {
	u16 Irq = cdr.Irq;
	int no_busy_error = 0;
	int start_rotating = 0;
	int error = 0;
	int delay;

	// Reschedule IRQ
	if (cdr.Stat) {
		CDR_LOG_I("cdrom: stat hack: %02x %x\n", cdr.Irq, cdr.Stat);
		CDR_INT(0x1000);
		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;
		}
	}

	cdr.Irq = 0;

	switch (Irq) {
		case CdlSync:
			// TOOD: sometimes/always return error?
			break;

		case CdlNop:
			if (cdr.DriveState != DRIVESTATE_LID_OPEN)
				cdr.StatP &= ~STATUS_SHELLOPEN;
			no_busy_error = 1;
			break;

		case CdlSetloc:
			break;

		do_CdlPlay:
		case CdlPlay:
			StopCdda();
			if (cdr.Seeked == SEEK_PENDING) {
				// XXX: wrong, should seek instead..
				cdr.Seeked = SEEK_DONE;
			}
			if (cdr.SetlocPending) {
				memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
				cdr.SetlocPending = 0;
			}

			// 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
			{
				int track = btoi( cdr.Param[0] );

				if (track <= cdr.ResultTN[1])
					cdr.CurTrack = track;

				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];
				}
			}

			/*
			Rayman: detect track changes
			- fixes logo freeze

			Twisted Metal 2: skip PREGAP + starting accurate SubQ
			- plays tracks without retry play

			Wild 9: skip PREGAP + starting accurate SubQ
			- plays tracks without retry play
			*/
			Find_CurTrack(cdr.SetSectorPlay);
			ReadTrack(cdr.SetSectorPlay);
			cdr.TrackChanged = FALSE;

			if (!Config.Cdda)
				CDR_play(cdr.SetSectorPlay);

			// Vib Ribbon: gameplay checks flag
			cdr.StatP &= ~STATUS_SEEK;
			cdr.Result[0] = cdr.StatP;

			cdr.StatP |= STATUS_PLAY;
			
			// BIOS player - set flag again
			cdr.Play = TRUE;

			CDRMISC_INT( cdReadTime );
			start_rotating = 1;
			break;

		case CdlForward:
			// TODO: error 80 if stopped
			cdr.Stat = Complete;

			// GameShark CD Player: Calls 2x + Play 2x
			if( cdr.FastForward == 0 ) cdr.FastForward = 2;
			else cdr.FastForward++;

			cdr.FastBackward = 0;
			break;

		case CdlBackward:
			cdr.Stat = Complete;

			// GameShark CD Player: Calls 2x + Play 2x
			if( cdr.FastBackward == 0 ) cdr.FastBackward = 2;
			else cdr.FastBackward++;

			cdr.FastForward = 0;
			break;

		case CdlStandby:
			if (cdr.DriveState != DRIVESTATE_STOPPED) {
				error = ERROR_INVALIDARG;
				goto set_error;
			}
			AddIrqQueue(CdlStandby + 0x100, cdReadTime * 125 / 2);
			start_rotating = 1;
			break;

		case CdlStandby + 0x100:
			cdr.Stat = Complete;
			break;

		case CdlStop:
			if (cdr.Play) {
				// grab time for current track
				CDR_getTD((u8)(cdr.CurTrack), cdr.ResultTD);

				cdr.SetSectorPlay[0] = cdr.ResultTD[2];
				cdr.SetSectorPlay[1] = cdr.ResultTD[1];
				cdr.SetSectorPlay[2] = cdr.ResultTD[0];
			}

			StopCdda();
			StopReading();

			delay = 0x800;
			if (cdr.DriveState == DRIVESTATE_STANDBY)
				delay = cdReadTime * 30 / 2;

			cdr.DriveState = DRIVESTATE_STOPPED;
			AddIrqQueue(CdlStop + 0x100, delay);
			break;

		case CdlStop + 0x100:
			cdr.StatP &= ~STATUS_ROTATING;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Complete;
			break;

		case CdlPause:
			/*
			Gundam Battle Assault 2: much slower (*)
			- Fixes boot, gameplay

			Hokuto no Ken 2: slower
			- Fixes intro + subtitles

			InuYasha - Feudal Fairy Tale: slower
			- Fixes battles
			*/
			AddIrqQueue(CdlPause + 0x100, cdReadTime * 3);
			cdr.Ctrl |= 0x80;
			break;

		case CdlPause + 0x100:
			cdr.StatP &= ~STATUS_READ;
			cdr.Result[0] = cdr.StatP;
			cdr.Stat = Complete;
			break;

		case CdlInit:
			AddIrqQueue(CdlInit + 0x100, cdReadTime * 6);
			no_busy_error = 1;
			start_rotating = 1;
			break;

		case CdlInit + 0x100:
			cdr.Stat = Complete;
			break;

		case CdlMute:
			cdr.Muted = TRUE;
			break;

		case CdlDemute:
			cdr.Muted = FALSE;
			break;

		case CdlSetfilter:
			cdr.File = cdr.Param[0];
			cdr.Channel = cdr.Param[1];
			break;

		case CdlSetmode:
			no_busy_error = 1;
			break;

		case CdlGetmode:
			SetResultSize(6);
			cdr.Result[1] = cdr.Mode;
			cdr.Result[2] = cdr.File;
			cdr.Result[3] = cdr.Channel;
			cdr.Result[4] = 0;
			cdr.Result[5] = 0;
			no_busy_error = 1;
			break;

		case CdlGetlocL:
			SetResultSize(8);
			memcpy(cdr.Result, cdr.Transfer, 8);
			break;

		case CdlGetlocP:
			SetResultSize(8);
			memcpy(&cdr.Result, &cdr.subq, 8);

			if (!cdr.Play && !cdr.Reading)
				cdr.Result[1] = 0; // HACK?
			break;

		case CdlReadT: // SetSession?
			// really long
			AddIrqQueue(CdlReadT + 0x100, cdReadTime * 290 / 4);
			start_rotating = 1;
			break;

		case CdlReadT + 0x100:
			cdr.Stat = Complete;
			break;

		case CdlGetTN:
			SetResultSize(3);
			if (CDR_getTN(cdr.ResultTN) == -1) {
				cdr.Stat = DiskError;
				cdr.Result[0] |= STATUS_ERROR;
			} else {
				cdr.Stat = Acknowledge;
				cdr.Result[1] = itob(cdr.ResultTN[0]);
				cdr.Result[2] = itob(cdr.ResultTN[1]);
			}
			break;

		case CdlGetTD:
			cdr.Track = btoi(cdr.Param[0]);
			SetResultSize(4);
			if (CDR_getTD(cdr.Track, cdr.ResultTD) == -1) {
				cdr.Stat = DiskError;
				cdr.Result[0] |= STATUS_ERROR;
			} else {
				cdr.Stat = Acknowledge;
				cdr.Result[0] = cdr.StatP;
				cdr.Result[1] = itob(cdr.ResultTD[2]);
				cdr.Result[2] = itob(cdr.ResultTD[1]);
				cdr.Result[3] = itob(cdr.ResultTD[0]);
			}
			break;

		case CdlSeekL:
		case CdlSeekP:
			StopCdda();
			StopReading();
			cdr.StatP |= STATUS_SEEK;

			/*
			Crusaders of Might and Magic = 0.5x-4x
			- fix cutscene speech start

			Eggs of Steel = 2x-?
			- fix new game

			Medievil = ?-4x
			- fix cutscene speech

			Rockman X5 = 0.5-4x
			- fix capcom logo
			*/
			CDRMISC_INT(cdr.Seeked == SEEK_DONE ? 0x800 : cdReadTime * 4);
			cdr.Seeked = SEEK_PENDING;
			start_rotating = 1;
			break;

		case CdlTest:
			switch (cdr.Param[0]) {
				case 0x20: // System Controller ROM Version
					SetResultSize(4);
					memcpy(cdr.Result, Test20, 4);
					break;
				case 0x22:
					SetResultSize(8);
					memcpy(cdr.Result, Test22, 4);
					break;
				case 0x23: case 0x24:
					SetResultSize(8);
					memcpy(cdr.Result, Test23, 4);
					break;
			}
			no_busy_error = 1;
			break;

		case CdlID:
			AddIrqQueue(CdlID + 0x100, 20480);
			break;

		case CdlID + 0x100:
			SetResultSize(8);
			cdr.Result[0] = cdr.StatP;
			cdr.Result[1] = 0;
			cdr.Result[2] = 0;
			cdr.Result[3] = 0;

			// 0x10 - audio | 0x40 - disk missing | 0x80 - unlicensed
			if (CDR_getStatus(&stat) == -1 || stat.Type == 0 || stat.Type == 0xff) {
				cdr.Result[1] = 0xc0;
			}
			else {
				if (stat.Type == 2)
					cdr.Result[1] |= 0x10;
				if (CdromId[0] == '\0')
					cdr.Result[1] |= 0x80;
			}
			cdr.Result[0] |= (cdr.Result[1] >> 4) & 0x08;

			strncpy((char *)&cdr.Result[4], "PCSX", 4);
			cdr.Stat = Complete;
			break;

		case CdlReset:
			// yes, it really sets STATUS_SHELLOPEN
			cdr.StatP |= STATUS_SHELLOPEN;
			cdr.DriveState = DRIVESTATE_RESCAN_CD;
			CDRLID_INT(20480);
			no_busy_error = 1;
			start_rotating = 1;
			break;

		case CdlGetQ:
			// TODO?
			CDR_LOG_I("got CdlGetQ\n");
			break;

		case CdlReadToc:
			AddIrqQueue(CdlReadToc + 0x100, cdReadTime * 180 / 4);
			no_busy_error = 1;
			start_rotating = 1;
			break;

		case CdlReadToc + 0x100:
			cdr.Stat = Complete;
			no_busy_error = 1;
			break;

		case CdlReadN:
		case CdlReadS:
			if (cdr.SetlocPending) {
				memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
				cdr.SetlocPending = 0;
			}
			Find_CurTrack(cdr.SetSectorPlay);

			if ((cdr.Mode & MODE_CDDA) && cdr.CurTrack > 1)
				// Read* acts as play for cdda tracks in cdda mode
				goto do_CdlPlay;

			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
			*/

			if (cdr.Seeked != SEEK_DONE) {
				cdr.StatP |= STATUS_SEEK;
				cdr.StatP &= ~STATUS_READ;

				// Crusaders of Might and Magic - use short time
				// - fix cutscene speech (startup)

				// ??? - use more accurate seek time later
				CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
			} else {
				cdr.StatP |= STATUS_READ;
				cdr.StatP &= ~STATUS_SEEK;

				CDREAD_INT((cdr.Mode & 0x80) ? (cdReadTime / 2) : cdReadTime * 1);
			}

			cdr.Result[0] = cdr.StatP;
			start_rotating = 1;
			break;

		default:
			CDR_LOG_I("Invalid command: %02x\n", Irq);
			error = ERROR_INVALIDCMD;
			// FALLTHROUGH

		set_error:
			SetResultSize(2);
			cdr.Result[0] = cdr.StatP | STATUS_ERROR;
			cdr.Result[1] = error;
			cdr.Stat = DiskError;
			break;
	}

	if (cdr.DriveState == DRIVESTATE_STOPPED && start_rotating) {
		cdr.DriveState = DRIVESTATE_STANDBY;
		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_NOT_READY;
			cdr.Stat = DiskError;
			break;
		}
	}

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");
	}
#endif
}
Exemple #5
0
// also handles seek
void cdrPlayInterrupt()
{
	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();
		}

		if (cdr.SetlocPending) {
			memcpy(cdr.SetSectorPlay, cdr.SetSector, 4);
			cdr.SetlocPending = 0;
		}
		Find_CurTrack(cdr.SetSectorPlay);
		ReadTrack(cdr.SetSectorPlay);
		cdr.TrackChanged = FALSE;
	}

	if (!cdr.Play) return;

	CDR_LOG( "CDDA - %d:%d:%d\n",
		cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2] );

	if (memcmp(cdr.SetSectorPlay, cdr.SetSectorEnd, 3) == 0) {
		StopCdda();
		cdr.TrackChanged = TRUE;
	}

	if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
		cdrPlayInterrupt_Autopause();

	if (!cdr.Play) return;

	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]++;
		}
	}

	CDRMISC_INT(cdReadTime);

	// update for CdlGetlocP/autopause
	generate_subq(cdr.SetSectorPlay);

	//senquack - Copy/pasted CHUI's ResetIoCycle() call into this new function
	// TODO: Are these really beneficial/necessary?
	// CHUI: Añado ResetIoCycle para permite que en el proximo salto entre en psxBranchTest
	ResetIoCycle();
}