AudioDeviceTreeParser.cpp   [plain text]

/*
 *  AudioDeviceTreeParser.cpp
 *  AppleOnboardAudio
 *
 *  Created by lcerveau on Thu May 31 2001.
 *  Copyright (c) 2001 __CompanyName__. All rights reserved.
 *
 */
 
#include "AudioHardwareCommon.h"
#include "AudioHardwareConstants.h"
#include "AudioDeviceTreeParser.h"
#include "AudioHardwareOutput.h"
#include "AudioHardwareDetect.h"
#include "AudioHardwarePower.h"

#define super OSObject

OSDefineMetaClassAndStructors(AudioDeviceTreeParser, OSObject)


        //Creation and destruction of the object
AudioDeviceTreeParser *AudioDeviceTreeParser::createWithEntryProvider(IOService *provider){
    AudioDeviceTreeParser *myAudioDTParser = 0;
    FAIL_IF(!provider, EXIT);    
    
    myAudioDTParser = new AudioDeviceTreeParser;
    
    if(myAudioDTParser) {
        if(!(myAudioDTParser->init(provider))){
            myAudioDTParser->release();
            myAudioDTParser = 0;
        }            
    }

EXIT:
    return myAudioDTParser;
}
    
bool AudioDeviceTreeParser::init(IOService *provider){

    soundEntry = 0;
    if(!super::init())
        return(false);
    
    soundEntry =  provider->childFromPath(kSoundEntryName, gIODTPlane);               
    if(!soundEntry) return false;
    
    soundEntry->retain();
    return(true);
}

void AudioDeviceTreeParser::free(){
    soundEntry->release(); 
    super::free();
}

        //Information getter for outputs
UInt32 AudioDeviceTreeParser::getNumberOfOutputs(){
    OSData *tempData;
    UInt32 AudioOutputNb = 0;
    
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kNumOutputsPropName));
    FAIL_IF(!tempData, BAIL);
    AudioOutputNb = *(UInt32 *)(tempData->getBytesNoCopy());
    FAIL_IF(0 == AudioOutputNb,EXIT);

EXIT:
    return AudioOutputNb;
BAIL:
    AudioOutputNb = 0;
    goto EXIT;
}

OSArray *AudioDeviceTreeParser::createOutputsArray(){
    OSData *tempData;
    OSArray* AudioOutputs = 0;
    UInt32 AudioOutputNb;
    char * theSoundObjects, *thetempObject;
    int parser, startidx, stopidx, startwordidx, stopwordidx, length;
    AudioHardwareOutputInfo myInfo;
    AudioHardwareOutput *theOutput;
    int size;
         
            //get the output numbers and create the detects array
    AudioOutputNb = getNumberOfOutputs();
    FAIL_IF(0 == AudioOutputNb,EXIT);

    AudioOutputs = OSArray::withCapacity(AudioOutputNb);
    FAIL_IF(!AudioOutputs, BAIL);
    
            //get all the sound objects and do the parsing
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kSoundObjectsPropName));
    FAIL_IF(!tempData, BAIL);

    theSoundObjects = (char *) tempData->getBytesNoCopy();
    size = (int) tempData->getCapacity();
    parser = -1;
    
    while(parser < size) {

            //find the end of string
        ASSIGNSTARTSTRING(startidx, parser);
        NEXTENDOFSTRING(theSoundObjects, parser);
        ASSIGNSTOPSTRING(stopidx, parser);
        thetempObject = theSoundObjects+startidx;
                        
            //do the detect parsing if it is one
        stopwordidx = 0;
        NEXTENDOFWORD(thetempObject, stopwordidx);
                        
        if(!bcmp(thetempObject, kOutputObjEntryName, stopwordidx-1)) {
            length = stopidx-startidx;
            startwordidx = ++stopwordidx;
            
            while(stopwordidx < length) {

                NEXTENDOFWORD(thetempObject, stopwordidx);
                
                if(!bcmp(thetempObject+startwordidx, kDeviceMaskPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(myInfo.deviceMask, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kDeviceMatchPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(myInfo.deviceMatch, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kIconIDPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);    
                    READWORDASNUMBER(myInfo.iconID, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kPortConnectionPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);    
                    READWORDASNUMBER(myInfo.portConnection, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kPortTypePropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx); 
                    READWORDASNUMBER(myInfo.portType, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kNameIDPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);    
                    READWORDASNUMBER(myInfo.nameID, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, "param", stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);    
                    READWORDASNUMBER(myInfo.param, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kModelPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx); 
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    
                    if(!bcmp(thetempObject+startwordidx, kOutputPortObjName, 8)) 
                        myInfo.outputKind = kOutputPortTypeClassic;
                    else if(!bcmp(thetempObject+startwordidx, kKiheiSpeakerObjName, 8)) 
                        myInfo.outputKind = kOutputPortTypeProj5;   
                    else if(!bcmp(thetempObject+startwordidx, kWSIntSpeakerObjName, 8)) 
                        myInfo.outputKind = kOutputPortTypeProj3;   
                    else 
                        myInfo.outputKind = kOutputPortTypeUnknown;
                }
                ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);                                                
            }
                
            theOutput = AudioHardwareOutput::create(myInfo);
            AudioOutputs->setObject(theOutput);
            CLEAN_RELEASE(theOutput);
            myInfo.deviceMask =0; myInfo.deviceMatch =0;
            myInfo.iconID =0; myInfo.portConnection =0;
            myInfo.portType =0; myInfo.nameID =0;
            myInfo.outputKind = 0; myInfo.param = 0;
        }
    }              
    
EXIT:
    return AudioOutputs;
BAIL:
    goto EXIT;
}



UInt32 AudioDeviceTreeParser::getNumberOfInputs(){
    UInt32 result = 0;
    OSData *tempData;
    
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kNumInputsPropName));
    FAIL_IF(!tempData, BAIL);
    result = *(UInt32 *)(tempData->getBytesNoCopy());
    FAIL_IF(0 == result, BAIL);

EXIT:
    return result; 
BAIL:
    goto EXIT;
}

UInt32 AudioDeviceTreeParser::getNumberofInputsWithMuxes(){
    UInt32 result;
    OSData *tempData;
    char * theSoundObjects, *thetempObject;
    int parser, startidx, stopidx, stopwordidx, size;
    
    result = 0;
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kSoundObjectsPropName));
    FAIL_IF(!tempData, BAIL);

    theSoundObjects = (char *) tempData->getBytesNoCopy();
    size = (int) tempData->getCapacity();
    parser = -1;

    while(parser < size) {
        ASSIGNSTARTSTRING(startidx, parser);
        NEXTENDOFSTRING(theSoundObjects, parser);
        ASSIGNSTOPSTRING(stopidx, parser);
        thetempObject = theSoundObjects+startidx;
                        
            //do the detect parsing if it is one
        stopwordidx = 0;
        NEXTENDOFWORD(thetempObject, stopwordidx);
        if(!bcmp(thetempObject, "input", stopwordidx-1)) 
            result++;
        else if( !bcmp(thetempObject, kMuxObjEntryName, stopwordidx-1))
            result++;
    }

EXIT:
    return result;
BAIL:
    result = 0;
    goto EXIT;
}


UInt32 AudioDeviceTreeParser::getNumberOfDetects(){
    UInt32 result = 0;
    OSData *tempData;
    
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kNumDetectsPropName));
    FAIL_IF(!tempData, BAIL);
    result = *(UInt32 *)(tempData->getBytesNoCopy());
    FAIL_IF(0 == result, BAIL);

EXIT:
    return result; 
BAIL:
    goto EXIT;
}

UInt32 AudioDeviceTreeParser::getNumberOfFeatures(){
    UInt32 result = 0;
 
    return result;

}

SInt16 AudioDeviceTreeParser::getInitOperationType(){
    SInt16 result = 0;
    OSData *tempData;
    char * theSoundObjects, *thetempObject;
    int parser, startidx, stopidx, startwordidx, stopwordidx, length;
    short opkind = 0;
    int size;
         
        //get all the sound objects and do the parsing
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kSoundObjectsPropName));
    FAIL_IF(!tempData, BAIL);

    theSoundObjects = (char *) tempData->getBytesNoCopy();
    size = (int) tempData->getCapacity();
    parser = -1;
    
    while(parser < size) {

            //find the end of string
        ASSIGNSTARTSTRING(startidx, parser);
        NEXTENDOFSTRING(theSoundObjects, parser);
        ASSIGNSTOPSTRING(stopidx, parser);
        thetempObject = theSoundObjects+startidx;
                        
            //do the detect parsing if it is one
        stopwordidx = 0;
        NEXTENDOFWORD(thetempObject, stopwordidx);
                        
        if(!bcmp(thetempObject, "init", stopwordidx-1)) {
            length = stopidx-startidx;
            startwordidx = ++stopwordidx;
            
            while(stopwordidx < length) {
                NEXTENDOFWORD(thetempObject, stopwordidx);
                
                if(!bcmp(thetempObject+startwordidx, "operation", stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(opkind, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, "param", stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    thetempObject[stopwordidx] = '\0';
                    thetempObject[stopwordidx] = ' ';
                } else if(!bcmp(thetempObject+startwordidx, "param-size", stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);    
                    thetempObject[stopwordidx] = '\0';
                    thetempObject[stopwordidx] = ' ';
                }                 
                ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);                                                 
            }
        }
    }              

    result = opkind;
EXIT:
    return result;
BAIL:
    result = 0;   
    goto EXIT;
}

SInt16 AudioDeviceTreeParser::getPowerObjectType(){
    SInt16 result = 0;
    OSData *tempData;
    char * theSoundObjects, *thetempObject;
    int parser, startidx, stopidx, startwordidx, stopwordidx, length;
    int size;
     
    
        //get all the sound objects and do the parsing
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kSoundObjectsPropName));
    FAIL_IF(!tempData, BAIL);

    theSoundObjects = (char *) tempData->getBytesNoCopy();
    size = (int) tempData->getCapacity();
    parser = -1;
    
    while(parser < size) {

            //find the end of string
        ASSIGNSTARTSTRING(startidx, parser);
        NEXTENDOFSTRING(theSoundObjects, parser);
        ASSIGNSTOPSTRING(stopidx, parser);
        thetempObject = theSoundObjects+startidx;
                        
            //do the feature  parsing if it is one
        stopwordidx = 0;
        NEXTENDOFWORD(thetempObject, stopwordidx);
                        
        if(!bcmp(thetempObject, "feature", stopwordidx-1)) {
            length = stopidx-startidx;
            startwordidx = ++stopwordidx;
            
            while(stopwordidx < length) {
                NEXTENDOFWORD(thetempObject, stopwordidx);
                
                if(!bcmp(thetempObject+startwordidx, "model", stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    if(!bcmp(thetempObject+startwordidx, "Proj7PowerControl", 8)) 
                        result= kProj7PowerObject;
                    else if (!bcmp(thetempObject+startwordidx, "Proj10PowerControl", 8)) 
                        result= kProj10PowerObject;
                    else if (!bcmp(thetempObject+startwordidx, "Proj6PowerControl", 8)) 
                        result= kProj6PowerObject;
                 } 
                ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);                                                 
            }
                 
        }
    }              

EXIT:
    return result;
BAIL:
    goto EXIT;
    result = 0;   
}


UInt32 AudioDeviceTreeParser::getLayoutID(){
    UInt32 result = 0;
    OSData *tempData;
    
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kDeviceIDPropName));
    FAIL_IF(!tempData, BAIL);
    result = *(UInt32 *)(tempData->getBytesNoCopy());
    FAIL_IF(0 == result, BAIL);

EXIT:
    return result; 
BAIL:
    goto EXIT;
}


OSArray *AudioDeviceTreeParser::getDSPFeatures(){
 
 return(0);
}


OSArray *AudioDeviceTreeParser::createInputsArray(){
    //this get the inputs
 
  return(0);
}

OSArray *AudioDeviceTreeParser::createInputsArrayWithMuxes(){
    //this get the inputs and the muxes there are on
    OSArray *AudioInputs = 0;
    OSData *tempData;
    char * theSoundObjects, *thetempObject;
    int parser, startidx, stopidx, startwordidx, stopwordidx, length;
    UInt32 tlength, muxIndex;
    AudioHardwareInputInfo myInfo;
    UInt32 AudioInputMuxNb, AudioMuxNb;
    AudioHardwareMuxInfo   myMuxInfo;
    AudioHardwareInput *theInput;
    AudioHardwareMux	*theMux;
    bool muxflag = false;
    int size;
    
	muxIndex = 0;
            //get the output numbers and create the detects array
    AudioMuxNb = 0; 
    AudioInputMuxNb = getNumberofInputsWithMuxes();

    if( 0 != AudioInputMuxNb)
        AudioInputs = OSArray::withCapacity(AudioInputMuxNb);
    FAIL_IF(!AudioInputs, BAIL);
    
        //get all the sound objects abd do the parsing
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kSoundObjectsPropName));
    FAIL_IF(!tempData, BAIL);

    theSoundObjects = (char *) tempData->getBytesNoCopy();
    size = (int) tempData->getCapacity();
    parser = -1;
    
    myInfo.sndHWPort = 0; myInfo.inputPortType = 0;
    myInfo.channels = 0;   myInfo.isOnMuX = muxflag;

    while(parser < size) {

            //find the end of string
        ASSIGNSTARTSTRING(startidx, parser);
        NEXTENDOFSTRING(theSoundObjects, parser);
        ASSIGNSTOPSTRING(stopidx, parser);
        thetempObject = theSoundObjects+startidx;
                        
            //do the detect parsing if it is one
        stopwordidx = 0;
        NEXTENDOFWORD(thetempObject, stopwordidx);
                        
        if(!bcmp(thetempObject, kInputObjEntryName, stopwordidx-1)) {
            length = stopidx-startidx;
            startwordidx = ++stopwordidx;
            
            while(stopwordidx < length) {

                NEXTENDOFWORD(thetempObject, stopwordidx);
                
                if(!bcmp(thetempObject+startwordidx, kPortChannelsPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(myInfo.channels, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kPortConnectionPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(myInfo.sndHWPort, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kPortTypePropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx); 
                    READWORDASNUMBER(myInfo.inputPortType, thetempObject, startwordidx, stopwordidx);
                }                 
                ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);                                                 
            }
            
            if(myInfo.isOnMuX) {
                myInfo.theMuxRef =  OSDynamicCast(AudioHardwareMux, AudioInputs->getObject(muxIndex));
            } else {
                myInfo.theMuxRef = 0;
            }
            
            theInput = AudioHardwareInput::create(myInfo);
            AudioInputs->setObject(theInput);
            CLEAN_RELEASE(theInput);
            myInfo.sndHWPort = 0; myInfo.inputPortType = 0;
            myInfo.channels = 0; 
        } else if(!bcmp(thetempObject, kMuxObjEntryName, stopwordidx-1)) {
            muxflag = true;
            myInfo.isOnMuX = muxflag;
            
                //we know we have 1 mux we should create the array
            length = stopidx-startidx;
            startwordidx = ++stopwordidx;

             while(stopwordidx < length) {

                NEXTENDOFWORD(thetempObject, stopwordidx);
                
                if(!bcmp(thetempObject+startwordidx, kModelPropName, stopwordidx-startwordidx)) { //model
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    
                    if(!bcmp(thetempObject+startwordidx, kMuxProgOutName, 6)) 
                        myMuxInfo.MuxPortType = kAudioHardwareMuxPO;
                    else if(!bcmp(thetempObject+startwordidx, kMux101ObjName, 6)) 
                        myMuxInfo.MuxPortType = kAudioHardwareMux101;   
                     else if(!bcmp(thetempObject+startwordidx, kMuxWSObjName, 6)) 
                        myMuxInfo.MuxPortType = kAudioHardwareMuxWS;   
                    else 
                        myMuxInfo.MuxPortType = kAudioHardwareMuxUnknown;
                        
                } else if(!bcmp(thetempObject+startwordidx, kSourceMapPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                  //  READWORDASNUMBER(myInfo.sndHWPort, thetempObject, startwordidx, stopwordidx);
                    tlength = sizeof(MuxSourceMap) * 2;
                    thetempObject[stopwordidx] = '\0';
                    getStringAsHexData((char *) &(thetempObject[startwordidx]),(UInt8 *) &(myMuxInfo.MuxPOsources), &tlength);
                    thetempObject[stopwordidx] = ' ';
                } else if(!bcmp(thetempObject+startwordidx, kSourceMapCountPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx); 
                    READWORDASNUMBER(myMuxInfo.MuxPOnumSources, thetempObject, startwordidx, stopwordidx);
                }                 
                ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);                  
            }
            
            if(kAudioHardwareMuxUnknown != myMuxInfo.MuxPortType) {
                    //we don't add a mux that is unknown
                if (0 == AudioMuxNb)    { //creation of an array of one Mux we should think of more
                    theMux = AudioHardwareMux::create(myMuxInfo);
                    muxIndex = AudioInputs->getCount();
                    if(theMux)
                        AudioInputs->setObject(theMux);
                } else {
                    DEBUG_IOLOG("There shouldn't be another mux");
                }
            }                
        }
    }              
    
EXIT:
    return AudioInputs;
BAIL:
    goto EXIT;
}

OSArray *AudioDeviceTreeParser::createDetectsArray(){
    OSArray* AudioDetects;
    OSData *tempData;
    char * theSoundObjects, *thetempObject;
    int parser, startidx, stopidx, startwordidx, stopwordidx, length;
    short detectidx;
    AudioHardwareDetect *theDetect;
    AudioHardwareDetectInfo myInfo;
    int size;

    myInfo.detectKind =0; myInfo.bitMask = 0;
    myInfo.bitMatch = 0; myInfo.device = 0;

    
            //get the detect numbers and create the detects array
    AudioDetects = OSArray::withCapacity(getNumberOfDetects());
    
            //get the complete Sound objects to parse them
    tempData = OSDynamicCast(OSData, soundEntry->getProperty(kSoundObjectsPropName));
    FAIL_IF(!tempData, BAIL);

    theSoundObjects = (char *) tempData->getBytesNoCopy();
    size = (int) tempData->getCapacity();
    parser = -1; detectidx =0;
    
    while(parser < size) {

            //find the end of string
        ASSIGNSTARTSTRING(startidx, parser);
        NEXTENDOFSTRING(theSoundObjects, parser);
        ASSIGNSTOPSTRING(stopidx, parser);
        thetempObject = theSoundObjects+startidx;
                        
            //do the detect parsing if it is one
        stopwordidx = 0;
        NEXTENDOFWORD(thetempObject, stopwordidx);
                        
        if(!bcmp(thetempObject, kDetectObjEntryName, stopwordidx-1)) {
        
            length = stopidx-startidx;
            startwordidx = ++stopwordidx;
            
            while(stopwordidx < length) {
                NEXTENDOFWORD(thetempObject, stopwordidx);
    
                if(!bcmp(thetempObject+startwordidx, kBitMaskPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(myInfo.bitMask, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kBitMatchPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    READWORDASNUMBER(myInfo.bitMatch, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kDevicePropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx); 
                    READWORDASNUMBER(myInfo.device, thetempObject, startwordidx, stopwordidx);
                } else if(!bcmp(thetempObject+startwordidx, kModelPropName, stopwordidx-startwordidx)) {
                    ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
                    NEXTENDOFWORD(thetempObject, stopwordidx);
                    if(!bcmp(thetempObject+startwordidx, kAnyInDetectObjName, 6)) 
                        myInfo.detectKind = kAudioHardwareDetectAnyInSense;
                    else if(!bcmp(thetempObject+startwordidx, kInSenseBitsDetectObjName, 6)) 
                        myInfo.detectKind = kAudioHardwareDetectInSense;   
                    else 
                        myInfo.detectKind = kAudioHardwareDetectUnknown;
                }
                ASSIGNNEXTWORD(thetempObject,startwordidx, stopwordidx);
            }
            
            theDetect = AudioHardwareDetect::create(detectidx, myInfo);
            AudioDetects->setObject(theDetect);
            CLEAN_RELEASE(theDetect);
            
            myInfo.detectKind =0; myInfo.bitMask = 0;
            myInfo.bitMatch = 0; myInfo.device = 0;
            detectidx++;
        }
    }              

EXIT:
    return AudioDetects;
BAIL:
    goto EXIT;
 
}
    
UInt8 AudioDeviceTreeParser::convertAsciiToHexData(char ascii) {
    UInt8 subvalue;
    subvalue = 0;
    
    if((ascii >= '0') && (ascii <= '9'))
        subvalue = '0';
    else if ((ascii >= 'a') && (ascii <= 'f'))
        subvalue = 'a'- 10;
    else if ((ascii >= 'A') && (ascii <= 'F'))
        subvalue = 'A'-10;
    
    return ascii-subvalue;
}


UInt32 AudioDeviceTreeParser::getStringAsNumber(char *string){
    SInt32 number, multiplier;
    char *valueStr;
    
    valueStr = string;
    number = 0;
    if (('0' == *valueStr) && ('x' == *(valueStr+1))) { //this is an hexa
        valueStr+=2;
        while(*valueStr)
            number = number*16+convertAsciiToHexData(*valueStr++);
    } else {
        if ('-' == *valueStr) {
            multiplier = -1;
            valueStr++;
        } else 
            multiplier = 1;
            
        while(*valueStr)
            number = (number *10)+ convertAsciiToHexData(*valueStr++);
        number *= multiplier;
    }

    return number;
}

bool AudioDeviceTreeParser::getStringAsHexData( char *string, UInt8 *value, UInt32 *size )
{
	UInt32	length;
	bool	err = true;	
        length = 0;
		
        while (*string && (length < *size)) {
            *value++ = (convertAsciiToHexData(*string++) << 4) |convertAsciiToHexData(*string++);
            length++;
        }
		
        *size = length;	
	return err;
}