package org.jpc.emulator.peripheral;
import org.jpc.emulator.AbstractHardwareComponent;
import org.jpc.emulator.HardwareComponent;
import org.jpc.emulator.Timer;
import org.jpc.emulator.TimerResponsive;
import org.jpc.emulator.motherboard.IODevice;
import org.jpc.emulator.motherboard.IOPortHandler;
import org.jpc.emulator.motherboard.InterruptController;
import org.jpc.j2se.Option;
import org.jpc.support.Clock;
import java.util.logging.*;
public class MPU401 extends AbstractHardwareComponent implements IODevice
{
private static final Logger Log = Logger.getLogger(MPU401.class.getName());
private static InterruptController irqDevice;
private static Clock timeSource;
private static Timer event;
private static boolean ioportRegistered = false;
static final private int MPU401_VERSION = 0x15;
static final private int MPU401_REVISION = 0x01;
static final private int MPU401_QUEUE = 32;
static final private float MPU401_TIMECONSTANT = (60000000/1000.0f);
static final private float MPU401_RESETBUSY = 27.0f;
static final private int M_UART = 0;
static final private int M_INTELLIGENT = 1;
static final private int T_OVERFLOW = 0;
static final private int T_MARK = 1;
static final private int T_MIDI_SYS = 2;
static final private int T_MIDI_NORM = 3;
static final private int T_COMMAND = 4;
/* Messages sent to MPU-401 from host */
static final private int MSG_EOX = 0xf7;
static final private int MSG_OVERFLOW = 0xf8;
static final private int MSG_MARK = 0xfc;
/* Messages sent to host from MPU-401 */
static final private int MSG_MPU_OVERFLOW = 0xf8;
static final private int MSG_MPU_COMMAND_REQ = 0xf9;
static final private int MSG_MPU_END = 0xfc;
static final private int MSG_MPU_CLOCK = 0xfd;
static final private int MSG_MPU_ACK = 0xfe;
static final private class MPU {
public MPU() {
for (int i=0;i<playbuf.length;i++)
playbuf[i] = new track();
}
public boolean intelligent;
public int mode;
/*Bitu*/int irq;
/*Bit8u*/short[] queue = new short[MPU401_QUEUE];
/*Bitu*/int queue_pos,queue_used;
public static class track {
/*Bits*/int counter;
/*Bit8u*/short[] value = new short[8];
short sys_val;
/*Bit8u*/short vlength,length;
/*MpuDataType*/ int type;
}
public final track[] playbuf = new track[8];
public final track condbuf = new track();
public static class State {
boolean conductor,cond_req,cond_set, block_ack;
boolean playing,reset;
boolean wsd,wsm,wsd_start;
boolean run_irq,irq_pending;
boolean send_now;
boolean eoi_scheduled;
/*Bits*/int data_onoff;
/*Bitu*/int command_byte, cmd_pending;
/*Bit8u*/short tmask,cmask,amask;
/*Bit16u*/int midi_mask;
/*Bit16u*/int req_mask;
/*Bit8u*/short channel,old_chan;
}
public final State state = new State();
public static class Clock {
/*Bit8u*/short timebase,old_timebase;
/*Bit8u*/short tempo,old_tempo;
/*Bit8u*/short tempo_rel,old_tempo_rel;
/*Bit8u*/short tempo_grad;
/*Bit8u*/short cth_rate,cth_counter;
boolean clock_to_host,cth_active;
}
public final Clock clock = new Clock();
}
private static final MPU mpu = new MPU();
private static void QueueByte(/*Bit8u*/int data) {
if (mpu.state.block_ack) {mpu.state.block_ack=false;return;}
if (mpu.queue_used==0 && mpu.intelligent) {
mpu.state.irq_pending=true;
//Pic.PIC_ActivateIRQ(mpu.irq);
irqDevice.setIRQ(mpu.irq, 1);
}
if (mpu.queue_used<MPU401_QUEUE) {
/*Bitu*/int pos=mpu.queue_used+mpu.queue_pos;
if (mpu.queue_pos>=MPU401_QUEUE) mpu.queue_pos-=MPU401_QUEUE;
if (pos>=MPU401_QUEUE) pos-=MPU401_QUEUE;
mpu.queue_used++;
mpu.queue[pos]=(short)data;
} else Log.log(Level.FINE,"MPU401:Data queue full");
}
private static void ClrQueue() {
mpu.queue_used=0;
mpu.queue_pos=0;
}
private static final int MPU401_ReadStatus(/*Bitu*/int port, /*Bitu*/int iolen) {
/*Bit8u*/short ret=0x3f; /* Bits 6 and 7 clear */
if (mpu.state.cmd_pending!=0) ret|=0x40;
if (mpu.queue_used==0) ret|=0x80;
return ret;
}
private static final void MPU401_WriteCommand(/*Bitu*/int port, /*Bitu*/int val, /*Bitu*/int iolen) {
if (mpu.state.reset) {mpu.state.cmd_pending=val+1;return;}
if (val<=0x2f) {
switch (val&3) { /* MIDI stop, start, continue */
case 1: {Midi.MIDI_RawOutByte(0xfc);break;}
case 2: {Midi.MIDI_RawOutByte(0xfa);break;}
case 3: {Midi.MIDI_RawOutByte(0xfb);break;}
}
if ((val&0x20)!=0) Log.log(Level.SEVERE,"MPU-401:Unhandled Recording Command "+Integer.toString(val,16));
switch (val&0xc) {
case 0x4: /* Stop */
//Pic.PIC_RemoveEvents(MPU401_Event);
mpu.state.playing=false;
for (/*Bitu*/int i=0xb0;i<0xbf;i++) { /* All notes off */
Midi.MIDI_RawOutByte(i);
Midi.MIDI_RawOutByte(0x7b);
Midi.MIDI_RawOutByte(0);
}
break;
case 0x8: /* Play */
Log.log(Level.INFO,"MPU-401:Intelligent mode playback started");
mpu.state.playing=true;
//Pic.PIC_RemoveEvents(MPU401_Event);
//Pic.PIC_AddEvent(MPU401_Event,MPU401_TIMECONSTANT/(mpu.clock.tempo*mpu.clock.timebase));
event.setExpiry((long)(timeSource.getRealMillis()+MPU401_TIMECONSTANT/(mpu.clock.tempo*mpu.clock.timebase)));
ClrQueue();
break;
}
}
else if (val>=0xa0 && val<=0xa7) { /* Request play counter */
if ((mpu.state.cmask & (1<<(val&7)))!=0) QueueByte(mpu.playbuf[val&7].counter);
}
else if (val>=0xd0 && val<=0xd7) { /* Send data */
mpu.state.old_chan=mpu.state.channel;
mpu.state.channel=(short)(val&7);
mpu.state.wsd=true;
mpu.state.wsm=false;
mpu.state.wsd_start=true;
}
else
switch (val) {
case 0xdf: /* Send system message */
mpu.state.wsd=false;
mpu.state.wsm=true;
mpu.state.wsd_start=true;
break;
case 0x8e: /* Conductor */
mpu.state.cond_set=false;
break;
case 0x8f:
mpu.state.cond_set=true;
break;
case 0x94: /* Clock to host */
mpu.clock.clock_to_host=false;
break;
case 0x95:
mpu.clock.clock_to_host=true;
break;
case 0xc2: /* Internal timebase */
mpu.clock.timebase=48;
break;
case 0xc3:
mpu.clock.timebase=72;
break;
case 0xc4:
mpu.clock.timebase=96;
break;
case 0xc5:
mpu.clock.timebase=120;
break;
case 0xc6:
mpu.clock.timebase=144;
break;
case 0xc7:
mpu.clock.timebase=168;
break;
case 0xc8:
mpu.clock.timebase=192;
break;
/* Commands with data byte */
case 0xe0: case 0xe1: case 0xe2: case 0xe4: case 0xe6:
case 0xe7: case 0xec: case 0xed: case 0xee: case 0xef:
mpu.state.command_byte=val;
break;
/* Commands 0xa# returning data */
case 0xab: /* Request and clear recording counter */
QueueByte(MSG_MPU_ACK);
QueueByte(0);
return;
case 0xac: /* Request version */
QueueByte(MSG_MPU_ACK);
QueueByte(MPU401_VERSION);
return;
case 0xad: /* Request revision */
QueueByte(MSG_MPU_ACK);
QueueByte(MPU401_REVISION);
return;
case 0xaf: /* Request tempo */
QueueByte(MSG_MPU_ACK);
QueueByte(mpu.clock.tempo);
return;
case 0xb1: /* Reset relative tempo */
mpu.clock.tempo_rel=40;
break;
case 0xb9: /* Clear play map */
case 0xb8: /* Clear play counters */
for (/*Bitu*/int i=0xb0;i<0xbf;i++) { /* All notes off */
Midi.MIDI_RawOutByte(i);
Midi.MIDI_RawOutByte(0x7b);
Midi.MIDI_RawOutByte(0);
}
for (/*Bitu*/int i=0;i<8;i++) {
mpu.playbuf[i].counter=0;
mpu.playbuf[i].type=T_OVERFLOW;
}
mpu.condbuf.counter=0;
mpu.condbuf.type=T_OVERFLOW;
if (!(mpu.state.conductor=mpu.state.cond_set)) mpu.state.cond_req=false;
mpu.state.amask=mpu.state.tmask;
mpu.state.req_mask=0;
mpu.state.irq_pending=true;
break;
case 0xff: /* Reset MPU-401 */
Log.log(Level.INFO,"MPU-401:Reset "+Integer.toString(val,16));
//Pic.PIC_AddEvent(MPU401_ResetDone,MPU401_RESETBUSY);
MPU401_ResetDone.callback();
mpu.state.reset=true;
MPU401_Reset();
if (mpu.mode==M_UART) return;//do not send ack in UART mode
break;
case 0x3f: /* UART mode */
Log.log(Level.INFO,"MPU-401:Set UART mode "+Integer.toString(val,16));
mpu.mode=M_UART;
break;
default:
//Log.log(LogType.LOG_MISC, LogSeverity.LOG_NORMALS,"MPU-401:Unhandled command %X",val);
}
QueueByte(MSG_MPU_ACK);
}
static private final int MPU401_ReadData(/*Bitu*/int port, /*Bitu*/int iolen) {
/*Bit8u*/short ret=MSG_MPU_ACK;
if (mpu.queue_used!=0) {
if (mpu.queue_pos>=MPU401_QUEUE) mpu.queue_pos-=MPU401_QUEUE;
ret=mpu.queue[mpu.queue_pos];
mpu.queue_pos++;mpu.queue_used--;
}
if (!mpu.intelligent) return ret;
if (mpu.queue_used == 0) irqDevice.setIRQ(mpu.irq, 0);//Pic.PIC_DeActivateIRQ(mpu.irq);
if (ret>=0xf0 && ret<=0xf7) { /* MIDI data request */
mpu.state.channel=(short)(ret&7);
mpu.state.data_onoff=0;
mpu.state.cond_req=false;
}
if (ret==MSG_MPU_COMMAND_REQ) {
mpu.state.data_onoff=0;
mpu.state.cond_req=true;
if (mpu.condbuf.type!=T_OVERFLOW) {
mpu.state.block_ack=true;
MPU401_WriteCommand(0x331,mpu.condbuf.value[0],1);
if (mpu.state.command_byte!=0) MPU401_WriteData(0x330,mpu.condbuf.value[1],1);
}
mpu.condbuf.type=T_OVERFLOW;
}
if (ret==MSG_MPU_END || ret==MSG_MPU_CLOCK || ret==MSG_MPU_ACK) {
mpu.state.data_onoff=-1;
MPU401_EOIHandlerDispatch();
}
return ret;
}
private static /*Bitu*/int length,cnt,posd;
private static final void MPU401_WriteData(/*Bitu*/int port, /*Bitu*/int val, /*Bitu*/int iolen) {
if (mpu.mode==M_UART) {Midi.MIDI_RawOutByte(val);return;}
switch (mpu.state.command_byte) { /* 0xe# command data */
case 0x00:
break;
case 0xe0: /* Set tempo */
mpu.state.command_byte=0;
mpu.clock.tempo=(short)val;
return;
case 0xe1: /* Set relative tempo */
mpu.state.command_byte=0;
if (val!=0x40) //default value
Log.log(Level.SEVERE,"MPU-401:Relative tempo change not implemented");
return;
case 0xe7: /* Set internal clock to host interval */
mpu.state.command_byte=0;
mpu.clock.cth_rate=(short)(val>>2);
return;
case 0xec: /* Set active track mask */
mpu.state.command_byte=0;
mpu.state.tmask=(short)val;
return;
case 0xed: /* Set play counter mask */
mpu.state.command_byte=0;
mpu.state.cmask=(short)val;
return;
case 0xee: /* Set 1-8 MIDI channel mask */
mpu.state.command_byte=0;
mpu.state.midi_mask&=0xff00;
mpu.state.midi_mask|=val;
return;
case 0xef: /* Set 9-16 MIDI channel mask */
mpu.state.command_byte=0;
mpu.state.midi_mask&=0x00ff;
mpu.state.midi_mask|=((/*Bit16u*/int)val)<<8;
return;
//case 0xe2: /* Set graduation for relative tempo */
//case 0xe4: /* Set metronome */
//case 0xe6: /* Set metronome measure length */
default:
mpu.state.command_byte=0;
return;
}
if (mpu.state.wsd) { /* Directly send MIDI message */
if (mpu.state.wsd_start) {
mpu.state.wsd_start=false;
cnt=0;
switch (val&0xf0) {
case 0xc0:case 0xd0:
mpu.playbuf[mpu.state.channel].value[0]=(short)val;
length=2;
break;
case 0x80:case 0x90:case 0xa0:case 0xb0:case 0xe0:
mpu.playbuf[mpu.state.channel].value[0]=(short)val;
length=3;
break;
case 0xf0:
Log.log(Level.SEVERE,"MPU-401:Illegal WSD byte");
mpu.state.wsd=false;
mpu.state.channel=mpu.state.old_chan;
return;
default: /* MIDI with running status */
cnt++;
Midi.MIDI_RawOutByte(mpu.playbuf[mpu.state.channel].value[0]);
}
}
if (cnt<length) {Midi.MIDI_RawOutByte(val);cnt++;}
if (cnt==length) {
mpu.state.wsd=false;
mpu.state.channel=mpu.state.old_chan;
}
return;
}
if (mpu.state.wsm) { /* Directly send system message */
if (val==MSG_EOX) {Midi.MIDI_RawOutByte(MSG_EOX);mpu.state.wsm=false;return;}
if (mpu.state.wsd_start) {
mpu.state.wsd_start=false;
cnt=0;
switch (val) {
case 0xf2:{ length=3; break;}
case 0xf3:{ length=2; break;}
case 0xf6:{ length=1; break;}
case 0xf0:{ length=0; break;}
default:
length=0;
}
}
if (length==0 || cnt<length) {Midi.MIDI_RawOutByte(val);cnt++;}
if (cnt==length) mpu.state.wsm=false;
return;
}
if (mpu.state.cond_req) { /* Command */
switch (mpu.state.data_onoff) {
case -1:
return;
case 0: /* Timing byte */
mpu.condbuf.vlength=0;
if (val<0xf0) mpu.state.data_onoff++;
else {
mpu.state.data_onoff=-1;
MPU401_EOIHandlerDispatch();
return;
}
if (val==0) mpu.state.send_now=true;
else mpu.state.send_now=false;
mpu.condbuf.counter=val;
break;
case 1: /* Command byte #1 */
mpu.condbuf.type=T_COMMAND;
if (val==0xf8 || val==0xf9) mpu.condbuf.type=T_OVERFLOW;
mpu.condbuf.value[mpu.condbuf.vlength]=(short)val;
mpu.condbuf.vlength++;
if ((val&0xf0)!=0xe0) MPU401_EOIHandlerDispatch();
else mpu.state.data_onoff++;
break;
case 2:/* Command byte #2 */
mpu.condbuf.value[mpu.condbuf.vlength]=(short)val;
mpu.condbuf.vlength++;
MPU401_EOIHandlerDispatch();
break;
}
return;
}
switch (mpu.state.data_onoff) { /* Data */
case -1:
return;
case 0: /* Timing byte */
if (val<0xf0) mpu.state.data_onoff=1;
else {
mpu.state.data_onoff=-1;
MPU401_EOIHandlerDispatch();
return;
}
if (val==0) mpu.state.send_now=true;
else mpu.state.send_now=false;
mpu.playbuf[mpu.state.channel].counter=val;
break;
case 1: /* MIDI */
mpu.playbuf[mpu.state.channel].vlength++;
posd=mpu.playbuf[mpu.state.channel].vlength;
if (posd==1) {
switch (val&0xf0) {
case 0xf0: /* System message or mark */
if (val>0xf7) {
mpu.playbuf[mpu.state.channel].type=T_MARK;
mpu.playbuf[mpu.state.channel].sys_val=(short)val;
length=1;
} else {
Log.log(Level.SEVERE,"MPU-401:Illegal message");
mpu.playbuf[mpu.state.channel].type=T_MIDI_SYS;
mpu.playbuf[mpu.state.channel].sys_val=(short)val;
length=1;
}
break;
case 0xc0: case 0xd0: /* MIDI Message */
mpu.playbuf[mpu.state.channel].type=T_MIDI_NORM;
length=mpu.playbuf[mpu.state.channel].length=2;
break;
case 0x80: case 0x90: case 0xa0: case 0xb0: case 0xe0:
mpu.playbuf[mpu.state.channel].type=T_MIDI_NORM;
length=mpu.playbuf[mpu.state.channel].length=3;
break;
default: /* MIDI data with running status */
posd++;
mpu.playbuf[mpu.state.channel].vlength++;
mpu.playbuf[mpu.state.channel].type=T_MIDI_NORM;
length=mpu.playbuf[mpu.state.channel].length;
break;
}
}
if (!(posd==1 && val>=0xf0)) mpu.playbuf[mpu.state.channel].value[posd-1]=(short)val;
if (posd==length) MPU401_EOIHandlerDispatch();
}
}
private static void MPU401_IntelligentOut(/*Bit8u*/int chan) {
/*Bitu*/int val;
switch (mpu.playbuf[chan].type) {
case T_OVERFLOW:
break;
case T_MARK:
val=mpu.playbuf[chan].sys_val;
if (val==0xfc) {
Midi.MIDI_RawOutByte(val);
mpu.state.amask&=~(1<<chan);
mpu.state.req_mask&=~(1<<chan);
}
break;
case T_MIDI_NORM:
for (/*Bitu*/int i=0;i<mpu.playbuf[chan].vlength;i++)
Midi.MIDI_RawOutByte(mpu.playbuf[chan].value[i]);
break;
default:
break;
}
}
private static void UpdateTrack(/*Bit8u*/int chan) {
MPU401_IntelligentOut(chan);
if ((mpu.state.amask & (1<<chan))!=0) {
mpu.playbuf[chan].vlength=0;
mpu.playbuf[chan].type=T_OVERFLOW;
mpu.playbuf[chan].counter=0xf0;
mpu.state.req_mask|=(1<<chan);
} else {
if (mpu.state.amask==0 && !mpu.state.conductor) mpu.state.req_mask|=(1<<12);
}
}
private static void UpdateConductor() {
if (mpu.condbuf.value[0]==0xfc) {
mpu.condbuf.value[0]=0;
mpu.state.conductor=false;
mpu.state.req_mask&=~(1<<9);
if (mpu.state.amask==0) mpu.state.req_mask|=(1<<12);
return;
}
mpu.condbuf.vlength=0;
mpu.condbuf.counter=0xf0;
mpu.state.req_mask|=(1<<9);
}
static private final TimerResponsive MPU401_Event = new TimerResponsive() {
public void callback() {
if (mpu.mode==M_UART) return;
if (!mpu.state.irq_pending) {
for (/*Bitu*/int i=0;i<8;i++) { /* Decrease counters */
if ((mpu.state.amask & (1<<i))!=0) {
mpu.playbuf[i].counter--;
if (mpu.playbuf[i].counter<=0) UpdateTrack(i);
}
}
if (mpu.state.conductor) {
mpu.condbuf.counter--;
if (mpu.condbuf.counter<=0) UpdateConductor();
}
if (mpu.clock.clock_to_host) {
mpu.clock.cth_counter++;
if (mpu.clock.cth_counter >= mpu.clock.cth_rate) {
mpu.clock.cth_counter=0;
mpu.state.req_mask|=(1<<13);
}
}
if (!mpu.state.irq_pending && mpu.state.req_mask!=0) MPU401_EOIHandler.callback();
}
//Pic.PIC_RemoveEvents(MPU401_Event);
/*Bitu*/int new_time;
if ((new_time=mpu.clock.tempo*mpu.clock.timebase)==0) return;
//Pic.PIC_AddEvent(MPU401_Event,MPU401_TIMECONSTANT/new_time);
event.setExpiry((long)(timeSource.getEmulatedNanos()+MPU401_TIMECONSTANT/new_time));
}
public int getType() {return -1;}
};
private static void MPU401_EOIHandlerDispatch() {
if (mpu.state.send_now) {
mpu.state.eoi_scheduled=true;
//Pic.PIC_AddEvent(MPU401_EOIHandler,0.06f); //Possible a bit longer
MPU401_EOIHandler.callback();
}
else if (!mpu.state.eoi_scheduled) MPU401_EOIHandler.callback();
}
//Updates counters and requests new data on "End of Input"
static private final TimerResponsive MPU401_EOIHandler = new TimerResponsive() {
public void callback() {
mpu.state.eoi_scheduled=false;
if (mpu.state.send_now) {
mpu.state.send_now=false;
if (mpu.state.cond_req) UpdateConductor();
else UpdateTrack(mpu.state.channel);
}
mpu.state.irq_pending=false;
if (!mpu.state.playing || mpu.state.req_mask==0) return;
/*Bitu*/int i=0;
do {
if ((mpu.state.req_mask & (1<<i))!=0) {
QueueByte(0xf0+i);
mpu.state.req_mask&=~(1<<i);
break;
}
} while ((i++)<16);
}
public int getType() {return -1;}
};
static private final TimerResponsive MPU401_ResetDone = new TimerResponsive() {
public void callback() {
mpu.state.reset=false;
if (mpu.state.cmd_pending!=0) {
MPU401_WriteCommand(0x331,mpu.state.cmd_pending-1,1);
mpu.state.cmd_pending=0;
}
}
public int getType() {return -1;}
};
private static void MPU401_Reset() {
//Pic.PIC_DeActivateIRQ(mpu.irq);
irqDevice.setIRQ(mpu.irq, 0);
mpu.mode=(mpu.intelligent ? M_INTELLIGENT : M_UART);
//Pic.PIC_RemoveEvents(MPU401_EOIHandler);
mpu.state.eoi_scheduled=false;
mpu.state.wsd=false;
mpu.state.wsm=false;
mpu.state.conductor=false;
mpu.state.cond_req=false;
mpu.state.cond_set=false;
mpu.state.playing=false;
mpu.state.run_irq=false;
mpu.state.irq_pending=false;
mpu.state.cmask=0xff;
mpu.state.amask=mpu.state.tmask=0;
mpu.state.midi_mask=0xffff;
mpu.state.data_onoff=0;
mpu.state.command_byte=0;
mpu.state.block_ack=false;
mpu.clock.tempo=mpu.clock.old_tempo=100;
mpu.clock.timebase=mpu.clock.old_timebase=120;
mpu.clock.tempo_rel=mpu.clock.old_tempo_rel=40;
mpu.clock.tempo_grad=0;
mpu.clock.clock_to_host=false;
mpu.clock.cth_rate=60;
mpu.clock.cth_counter=0;
ClrQueue();
mpu.state.req_mask=0;
mpu.condbuf.counter=0;
mpu.condbuf.type=T_OVERFLOW;
for (/*Bitu*/int i=0;i<8;i++) {mpu.playbuf[i].type=T_OVERFLOW;mpu.playbuf[i].counter=0;}
}
// private IoHandler.IO_ReadHandleObject[] ReadHandler=new IoHandler.IO_ReadHandleObject[2];
// private IoHandler.IO_WriteHandleObject[] WriteHandler=new IoHandler.IO_WriteHandleObject[2];
private boolean installed; /*as it can fail to install by 2 ways (config and no midi)*/
public MPU401() {
installed = false;
String s_mpu = Option.mpu401.value("intelligent");
if(s_mpu.equalsIgnoreCase("none")) return;
if(s_mpu.equalsIgnoreCase("off")) return;
if(s_mpu.equalsIgnoreCase("false")) return;
if (!Midi.MIDI_Available()) return;
/*Enabled and there is a Midi */
installed = true;
// for (int i=0;i<WriteHandler.length;i++) {
// WriteHandler[i] = new IoHandler.IO_WriteHandleObject();
// }
// for (int i=0;i<ReadHandler.length;i++) {
// ReadHandler[i] = new IoHandler.IO_ReadHandleObject();
// }
// WriteHandler[0].Install(0x330,MPU401_WriteData,IoHandler.IO_MB);
// WriteHandler[1].Install(0x331,MPU401_WriteCommand,IoHandler.IO_MB);
// ReadHandler[0].Install(0x330,MPU401_ReadData,IoHandler.IO_MB);
// ReadHandler[1].Install(0x331,MPU401_ReadStatus,IoHandler.IO_MB);
mpu.queue_used=0;
mpu.queue_pos=0;
mpu.mode=M_UART;
mpu.irq=9; /* Princess Maker 2 wants it on irq 9 */
mpu.intelligent = true; //Default is on
if(s_mpu.equalsIgnoreCase("uart")) mpu.intelligent = false;
if (!mpu.intelligent) return;
/*Set IRQ and unmask it(for timequest/princess maker 2) */
//Pic.PIC_SetIRQMask(mpu.irq,false);
//MPU401_Reset();
}
public int ioPortRead8(int address)
{
return ioPortRead32(address);
}
public int ioPortRead16(int address)
{
return ioPortRead32(address);
}
public int ioPortRead32(int port)
{
if (port == 0x330)
{
return MPU401_ReadData(port, 32);
}
else if (port == 0x331)
{
return MPU401_ReadStatus(port, 32);
}
throw new IllegalStateException("Unknown port read "+port);
}
public void ioPortWrite8(int address, int data)
{
ioPortWrite32(address, data);
}
public void ioPortWrite16(int address, int data)
{
ioPortWrite32(address, data);
}
public void ioPortWrite32(int port, int data)
{
if (port == 0x330)
{
MPU401_WriteData(port, data, 32);
}
else if (port == 0x331)
{
MPU401_WriteCommand(port, data, 32);
}
}
public int[] ioPortsRequested()
{
int[] ports = new int[]{0x330, 0x331};
return ports;
}
public boolean initialised()
{
return (irqDevice != null) && (timeSource != null) && ioportRegistered;
}
public boolean updated()
{
return (irqDevice.updated() && timeSource.updated());
}
public void acceptComponent(HardwareComponent component)
{
if ((component instanceof InterruptController) && component.initialised())
irqDevice = (InterruptController) component;
if ((component instanceof Clock) && component.initialised())
timeSource = (Clock) component;
if ((component instanceof IOPortHandler) && component.initialised()) {
((IOPortHandler) component).registerIOPortCapable(this);
ioportRegistered = true;
}
if (this.initialised())
MPU401_Init();
}
static private MPU401 test;
public static void MPU401_Destroy() {
if(!test.installed) return;
if(!Option.mpu401.value("intelligent").equalsIgnoreCase("intelligent")) return;
//Pic.PIC_SetIRQMask(mpu.irq,true);
irqDevice.setIRQ(mpu.irq, 0);
}
public static void MPU401_Init() {
test = new MPU401();
event = timeSource.newTimer(MPU401_Event);
irqDevice.setIRQ(mpu.irq, 0);
MPU401_Reset();
}
}