path: root/wctdm24xxp/GpakApi.h

/*
 * Copyright (c) 2005 , Adaptive Digital Technologies, Inc.
 *
 * File Name: GpakApi.h
 *
 * Description:
 *   This file contains the function prototypes and data types for the user
 *   API functions that communicate with DSPs executing G.PAK software. The
 *   file is used by application software in the host processor connected to
 *   C55X G.PAK DSPs via a Host Port Interface.
 *
 * Version: 1.0
 *
 * Revision History:
 *   06/15/05 - Initial release.
 *   11/15/2006  - 24 TDM-TDM Channels EC release
 */

#ifndef _GPAKAPI_H  /* prevent multiple inclusion */
#define _GPAKAPI_H
#include "gpakErrs.h"
#include "gpakenum.h"

// Bit masks to select which algorithm's parameters to update: Or-together the
// desired masks into the UpdateBits function parameter.
#define DTMF_UPDATE_MASK        0x0010   // update DTMF params, MinLevel, SNRFlag and Freq
#define DTMF_TWIST_UPDATE_MASK  0x0020   // update DTMF TWIST system params
#define DTMF_VALID_MASK         0x0080   // update DTMF ValidMask params

#define DSP_DEBUG_BUFF_SIZE 42      // units of 16-bit words

/* Definition of an Asynchronous Event Data Structure */
typedef union
{
    struct
    {
        GpakToneCodes_t    ToneCode;       // detected tone code
        unsigned short int ToneDuration;   // tone duration
        GpakTdmDirection   Direction;      // detected on A r B side
        short int          DebugToneStatus;// reserved for debug info
    } toneEvent;

} GpakAsyncEventData_t;

/* Definition of an Echo Canceller Parameters information structure. */
typedef struct
{
    short int EcanTapLength;       // Echo Can Num Taps (tail length) 
    short int EcanNlpType;         // Echo Can NLP Type 
    short int EcanAdaptEnable;     // Echo Can Adapt Enable flag 
    short int EcanG165DetEnable;   // Echo Can G165 Detect Enable flag 
    short int EcanDblTalkThresh;   // Echo Can Double Talk threshold 
    short int EcanNlpThreshold;    // Echo Can NLP threshold 
    short int EcanNlpConv;  // Dynamic NLP control, NLP limit when EC about to converged
    short int EcanNlpUnConv;// Dynamic NLP control, NLP limit when EC not converged yet
    short int EcanNlpMaxSuppress; // suppression level for NLP_SUPP mode
    short int EcanCngThreshold;    // Echo Can CNG Noise threshold 
    short int EcanAdaptLimit;      // Echo Can Max Adapts per frame 
    short int EcanCrossCorrLimit;  // Echo Can Cross Correlation limit 
    short int EcanNumFirSegments;  // Echo Can Num FIR Segments 
    short int EcanFirSegmentLen;   // Echo Can FIR Segment Length 
} GpakEcanParms_t;

/* Definition of a Channel Configuration information structure. */
typedef struct
{
    GpakSerialPort_t    PcmInPortA;         // A side PCM Input Serial Port Id 
    unsigned short int  PcmInSlotA;         // A side PCM Input Time Slot 
    GpakSerialPort_t    PcmOutPortA;        // A side PCM Output Serial Port Id 
    unsigned short int  PcmOutSlotA;        // A side PCM Output Time Slot 
    GpakSerialPort_t    PcmInPortB;         // B side PCM Input Serial Port Id 
    unsigned short int  PcmInSlotB;         // B side PCM Input Time Slot 
    GpakSerialPort_t    PcmOutPortB;        // B side PCM Output Serial Port Id 
    unsigned short int  PcmOutSlotB;        // B side PCM Output Time Slot 
    GpakToneTypes       ToneTypesA;         // A side Tone Detect Types
    GpakToneTypes       ToneTypesB;         // B side Tone Detect Types
    GpakActivation      EcanEnableA;        // Echo Cancel A Enabled
    GpakActivation      EcanEnableB;        // Echo Cancel B Enabled
    GpakEcanParms_t     EcanParametersA;    // Echo Cancel parameters 
    GpakEcanParms_t     EcanParametersB;    // Echo Cancel parameters 
    GpakCompandModes    SoftwareCompand;    // software companding
    GpakRate_t          FrameRate;          // Gpak Frame Rate 
    GpakActivation      MuteToneA;          // A side mute DTMF Enabled
    GpakActivation      MuteToneB;          // B side mute DTMF Enabled
    GpakActivation      FaxCngDetA;         // A side FaxCng Tone Detector Enabled
    GpakActivation      FaxCngDetB;         // B side FaxCng Tone Detector Enabled

} GpakChannelConfig_t;


/* Definition of a Serial Port Configuration Structure */
typedef struct
{
    GpakSlotCfg_t SlotsSelect1;         // port 1 Slot selection
    unsigned short int FirstBlockNum1;  // port 1 first group Block Number
    unsigned short int FirstSlotMask1;  // port 1 first group Slot Mask
    unsigned short int SecBlockNum1;    // port 1 second group Block Number
    unsigned short int SecSlotMask1;    // port 1 second group Slot Mask

    GpakSerWordSize_t  SerialWordSize1; // port 1 serial word size 
    GpakCompandModes   CompandingMode1; // port 1 companding mode
    GpakSerFrameSyncPol_t TxFrameSyncPolarity1; // port 1 Tx Frame Sync Polarity
    GpakSerFrameSyncPol_t RxFrameSyncPolarity1; // port 1 Rx Frame Sync Polarity
    GpakSerClockPol_t  TxClockPolarity1;        // port 1 Tx Clock Polarity
    GpakSerClockPol_t  RxClockPolarity1;        // port 1 Rx Clock Polarity
    GpakSerDataDelay_t TxDataDelay1;            // port 1 Tx data delay
    GpakSerDataDelay_t RxDataDelay1;            // port 1 Rx data delay
    GpakActivation     DxDelay1;                // port 1 DX Delay

    unsigned short int ThirdSlotMask1;  // port 1 3rd group Slot Mask
    unsigned short int FouthSlotMask1;  // port 1 4th group Slot Mask
    unsigned short int FifthSlotMask1;  // port 1 5th group Slot Mask
    unsigned short int SixthSlotMask1;  // port 1 6th group Slot Mask
    unsigned short int SevenSlotMask1;  // port 1 7th group Slot Mask
    unsigned short int EightSlotMask1;  // port 1 8th group Slot Mask


    GpakSlotCfg_t SlotsSelect2;         // port 2 Slot selection
    unsigned short int FirstBlockNum2;  // port 2 first group Block Number
    unsigned short int FirstSlotMask2;  // port 2 first group Slot Mask
    unsigned short int SecBlockNum2;    // port 2 second group Block Number
    unsigned short int SecSlotMask2;    // port 2 second group Slot Mask
    GpakSerWordSize_t  SerialWordSize2; // port 2 serial word size 
    GpakCompandModes   CompandingMode2; // port 2 companding mode
    GpakSerFrameSyncPol_t TxFrameSyncPolarity2; // port 2 Tx Frame Sync Polarity
    GpakSerFrameSyncPol_t RxFrameSyncPolarity2; // port 2 Rx Frame Sync Polarity
    GpakSerClockPol_t  TxClockPolarity2;        // port 2 Tx Clock Polarity
    GpakSerClockPol_t  RxClockPolarity2;        // port 2 Rx Clock Polarity
    GpakSerDataDelay_t TxDataDelay2;            // port 2 Tx data delay
    GpakSerDataDelay_t RxDataDelay2;            // port 2 Rx data delay
    GpakActivation     DxDelay2;                // port 2 DX Delay
    
    unsigned short int ThirdSlotMask2;  // port 2 3rd group Slot Mask
    unsigned short int FouthSlotMask2;  // port 2 4th group Slot Mask
    unsigned short int FifthSlotMask2;  // port 2 5th group Slot Mask
    unsigned short int SixthSlotMask2;  // port 2 6th group Slot Mask
    unsigned short int SevenSlotMask2;  // port 2 7th group Slot Mask
    unsigned short int EightSlotMask2;  // port 2 8th group Slot Mask

    GpakSlotCfg_t SlotsSelect3;         // port 3 Slot selection
    unsigned short int FirstBlockNum3;  // port 3 first group Block Number
    unsigned short int FirstSlotMask3;  // port 3 first group Slot Mask
    unsigned short int SecBlockNum3;    // port 3 second group Block Number
    unsigned short int SecSlotMask3;    // port 3 second group Slot Mask
    GpakSerWordSize_t  SerialWordSize3; // port 3 serial word size 
    GpakCompandModes   CompandingMode3; // port 3 companding mode
    GpakSerFrameSyncPol_t TxFrameSyncPolarity3; // port 3 Tx Frame Sync Polarity
    GpakSerFrameSyncPol_t RxFrameSyncPolarity3; // port 3 Rx Frame Sync Polarity
    GpakSerClockPol_t  TxClockPolarity3;        // port 3 Tx Clock Polarity
    GpakSerClockPol_t  RxClockPolarity3;        // port 3 Rx Clock Polarity
    GpakSerDataDelay_t TxDataDelay3;            // port 3 Tx data delay
    GpakSerDataDelay_t RxDataDelay3;            // port 3 Rx data delay
    GpakActivation     DxDelay3;                // port 3 DX Delay

    unsigned short int ThirdSlotMask3;  // port 3 3rd group Slot Mask
    unsigned short int FouthSlotMask3;  // port 3 4th group Slot Mask
    unsigned short int FifthSlotMask3;  // port 3 5th group Slot Mask
    unsigned short int SixthSlotMask3;  // port 3 6th group Slot Mask
    unsigned short int SevenSlotMask3;  // port 3 7th group Slot Mask
    unsigned short int EightSlotMask3;  // port 3 8th group Slot Mask

} GpakPortConfig_t;

/* Definition of a Tone Generation Parameter Structure */
/*
typedef struct
{
    GpakToneGenType_t ToneType;         // Tone Type
    unsigned short int Frequency[4];    // Frequency (Hz)
    short int Level[4];                 // Frequency's Level (1 dBm)
    unsigned short int OnTime[4];       // On Times (msecs)
    unsigned short int OffTime[4];      // Off Times (msecs)
} GpakToneGenParms_t;
*/
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

/* gpakConfigureChannel return status. */
typedef enum
{
    CcsSuccess = 0,           /* Channel Configured successfully */
    CcsParmError = 1,         /* Channel Config Parameter error */
    CcsInvalidChannel = 2,    /* invalid channel */
    CcsInvalidDsp = 3,        /* invalid DSP */
    CcsDspCommFailure = 4     /* failed to communicate with DSP */
} gpakConfigChanStatus_t;

/*
 * gpakConfigureChannel - Configure a DSP's Channel.
 *
 * FUNCTION
 *  This function configures a DSP's Channel.
 *
 * RETURNS
 *  Status code indicating success or a specific error.
 *
 */
extern gpakConfigChanStatus_t gpakConfigureChannel(
    unsigned short int      DspId,       // DSP identifier
    unsigned short int      ChannelId,   // channel identifier
    GpakChanType            ChannelType, // channel type
    GpakChannelConfig_t     *pChanConfig, // pointer to channel config info 
    GPAK_ChannelConfigStat_t *pStatus    // pointer to Channel Config Status
    );


/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

/* gpakTearDownChannel return status. */
typedef enum
{
    TdsSuccess = 0,         /* Channel Tear Down successful */
    TdsError = 1,           /* Channel Tear Down error */
    TdsInvalidChannel = 2,  /* invalid channel */
    TdsInvalidDsp = 3,      /* invalid DSP */
    TdsDspCommFailure = 4   /* failed to communicate with DSP */
} gpakTearDownStatus_t;

/*
 * gpakTearDownChannel - Tear Down a DSP's Channel.
 *
 * FUNCTION
 *  This function tears down a DSP's Channel.
 *
 * RETURNS
 *  Status code indicating success or a specific error.
 *
 */

extern gpakTearDownStatus_t gpakTearDownChannel(
    unsigned short int      DspId,      // DSP identifier
    unsigned short int      ChannelId,  // channel identifier
    GPAK_TearDownChanStat_t *pStatus    // pointer to Tear Down Status
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

/* gpakAlgControl return status. */
typedef enum
{
    AcSuccess = 0,         /* control successful */
    AcInvalidChannel = 1,  /* invalid channel identifier */
    AcInvalidDsp = 2,      /* invalid DSP */
    AcParmError = 3,       /* invalid control parameter */
    AcDspCommFailure = 4   /* failed to communicate with DSP */
} gpakAlgControlStat_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakAlgControl - Control an Algorithm.
 *
 * FUNCTION
 *  This function controls an Algorithm
 *
 * RETURNS
 *  Status code indicating success or a specific error.
 *
 */
extern gpakAlgControlStat_t gpakAlgControl(
    unsigned short int  DspId,          // DSP identifier
    unsigned short int  ChannelId,		// channel identifier
    GpakAlgCtrl_t       ControlCode,    // algorithm control code
    GPAK_AlgControlStat_t *pStatus      // pointer to return status
    );


/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

/* gpakConfigurePorts return status. */
typedef enum
{
    CpsSuccess = 0,         /* Serial Ports configured successfully */
    CpsParmError = 1,       /* Configure Ports Parameter error */
    CpsInvalidDsp = 2,      /* invalid DSP */
    CpsDspCommFailure = 3   /* failed to communicate with DSP */
} gpakConfigPortStatus_t;

/*
 * gpakConfigurePorts - Configure a DSP's serial ports.
 *
 * FUNCTION
 *  This function configures a DSP's serial ports.
 *
 * RETURNS
 *  Status code indicating success or a specific error.
 *
 */
extern gpakConfigPortStatus_t gpakConfigurePorts(
    unsigned short int DspId,           // DSP identifier
    GpakPortConfig_t   *pPortConfig,     // pointer to Port Config info
    GPAK_PortConfigStat_t *pStatus      // pointer to Port Config Status
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

/* gpakDownloadDsp return status. */
typedef enum
{
    GdlSuccess = 0,         /* DSP download successful */
    GdlFileReadError = 1,   /* error reading Download file */
    GdlInvalidFile = 2,     /* invalid Download file content */
    GdlInvalidDsp = 3       /* invalid DSP */
} gpakDownloadStatus_t;

/*
 * gpakDownloadDsp - Download a DSP's Program and initialized Data memory.
 *
 * FUNCTION
 *  This function reads a DSP's Program and Data memory image from the
 *  specified file and writes the image to the DSP's memory.
 *
 * RETURNS
 *  Status code indicating success or a specific error.
 *
 */
extern gpakDownloadStatus_t gpakDownloadDsp(
    unsigned short int  DspId,  // DSP identifier
    GPAK_FILE_ID        FileId	// G.PAK download file identifier
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */

/* gpakReadEventFIFOMessage return status */
typedef enum
{
    RefEventAvail = 0,       /* an event was successfully read from the fifo */
    RefNoEventAvail = 1,     /* no event was in the fifo */
    RefInvalidDsp = 2,       /* invalid DSP identifier */
    RefInvalidEvent = 3,     /* invalid event */
    RefDspCommFailure = 4    /* error communicating with DSP */
} gpakReadEventFIFOMessageStat_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakReadEventFIFOMessage - read from the event fifo
 * 
 * FUNCTION
 *  This function reads a single event from the event fifo if one is available
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 *
 * Note: This function should be called in a loop until the return status 
 *       indicates that the fifo is empty.
 */
extern gpakReadEventFIFOMessageStat_t gpakReadEventFIFOMessage(
    unsigned short int      DspId,          // DSP identifier
    unsigned short int      *pChannelId,    // pointer to channel identifier
    GpakAsyncEventCode_t    *pEventCode,    // pointer to Event Code
    GpakAsyncEventData_t    *pEventData     // pointer to Event Data Struct
    );


/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakPingDsp return status values */
typedef enum
{
    PngSuccess = 0,          /* DSP responded successfully */
    PngInvalidDsp = 1,       /* invalid DSP identifier */
    PngDspCommFailure = 2       /* error communicating with DSP */
} gpakPingDspStat_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakPingDsp - ping the DSP to see if it's alive
 * 
 * FUNCTION
 *  This function checks if the DSP is still communicating with the host
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */
extern gpakPingDspStat_t gpakPingDsp(
    unsigned short int      DspId,          // DSP identifier
    unsigned short int      *pDspSwVersion  // DSP software version
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakSerialTxFixedValue return status values */
typedef enum
{
    TfvSuccess = 0,         /* operation successful */
    TfvInvalidChannel = 1,  /* invalid channel identifier */
    TfvInvalidDsp = 2,      /* invalid DSP identifier */
    TfvDspCommFailure = 3   /* failed to communicate with DSP */
} gpakSerialTxFixedValueStat_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakSerialTxFixedValue - transmit a fixed value on a timeslot
 * 
 * FUNCTION
 *  This function controls transmission of a fixed value out onto a serial 
 *  port's timeslot.
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */
extern gpakSerialTxFixedValueStat_t gpakSerialTxFixedValue(
    unsigned short int      DspId,          // DSP identifier
    unsigned short int      ChannelId,      // channel identifier
    GpakSerialPort_t        PcmOutPort,     // PCM Output Serial Port Id
    unsigned short int      PcmOutSlot,     // PCM Output Time Slot
    unsigned short int      Value,          // 16-bit value 
    GpakActivation          State 		    // activation state
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakControlTdmLoopBack return status values */
typedef enum
{
    ClbSuccess = 0,         /* operation successful */
    ClbSerPortInactive = 1, /* serial port is inactive */
    ClbInvalidDsp = 2,      /* invalid DSP identifier */
    ClbDspCommFailure = 3   /* failed to communicate with DSP */
} gpakControlTdmLoopBackStat_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakControlTdmLoopBack - control a serial port's loopback state
 * 
 * FUNCTION
 *  This function enables/disables the tdm input to output looback mode on a
 *  serial port
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/
gpakControlTdmLoopBackStat_t gpakControlTdmLoopBack(
    unsigned short int      DspId,          // DSP identifier
    GpakSerialPort_t        SerialPort,     // Serial Port Id
    GpakActivation          LoopBackState   // Loopback State
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakReadCpuUsage return status values */
typedef enum
{
    RcuSuccess = 0,         /* operation successful */
    RcuInvalidDsp = 1,      /* invalid DSP identifier */
    RcuDspCommFailure = 2   /* communication failure */
} gpakReadCpuUsageStat_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakReadCpuUsage - read the cpu usage statistics
 * 
 * FUNCTION
 *  This function reads cpu utilization from the DSP.
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */
extern gpakReadCpuUsageStat_t gpakReadCpuUsage(
    unsigned short int  DspId,              // DSP identifier
    unsigned short int  *pPeakUsage,        // pointer to peak usage variable
    unsigned short int  *pPrev1SecPeakUsage // peak usage over previous 1 second
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakResetCpuUsageStats return status values */
typedef enum
{
    RstcSuccess = 0,         /* operation successful */
    RstcInvalidDsp = 1,      /* invalid DSP identifier */
    RstcDspCommFailure = 2   /* communication failure */
} gpakResetCpuUsageStat_t;
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakResetCpuUsageStats - reset the cpu usage statistics
 * 
 * FUNCTION
 *  This function resets the cpu utilization statistics
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */
extern gpakResetCpuUsageStat_t gpakResetCpuUsageStats(
    unsigned short int  DspId              // DSP identifier
    );


/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakReadFramingStats return status values */
typedef enum
{
    RfsSuccess = 0,         /* operation successful */
    RfsInvalidDsp = 1,      /* invalid DSP identifier */
    RfsDspCommFailure = 2   /* communication failure */
} gpakReadFramingStatsStatus_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakReadFramingStats
 * 
 * FUNCTION
 *  This function reads a DSP's framing interrupt statistics
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */
extern gpakReadFramingStatsStatus_t gpakReadFramingStats(
    unsigned short int  DspId,                // DSP identifier
    unsigned short int  *pFramingError1Count, // port 1 Framing error count
    unsigned short int  *pFramingError2Count, // port 2 Framing error count
    unsigned short int  *pFramingError3Count, // port 3 Framing error count
    unsigned short int  *pDmaStopErrorCount,   // DMA-stoppage error count
    unsigned short int  *pDmaSlipStatsBuffer   // DMA slips count
    );

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -*/

/* gpakResetFramingStats return values */
typedef enum
{
    RstfSuccess = 0,         /* operation successful */
    RstfInvalidDsp = 1,      /* invalid DSP identifier */
    RstfDspCommFailure = 2   /* communication failure */
} gpakResetFramingStatsStatus_t;

/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakResetFramingStats - reset a DSP's framing interrupt statistics
 * 
 * FUNCTION
 *  This function resets a DSP's framing interrupt statistics
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */
extern gpakResetFramingStatsStatus_t gpakResetFramingStats(
    unsigned short int      DspId          // DSP identifier
    );


typedef enum
{
	RmmSuccess =0,
	RmmInvalidDsp = 1,
	RmmSizeTooBig = 2,
	RmmFailure = 3,
	RmmInvalidAddress = 4
	
} gpakReadDSPMemoryStat_t;
/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 * gpakResetFramingStats - read a section of DSP memory
 *                         to get access DSP registers, since 0x00--0x60 not HPI-accessable
 * 
 * FUNCTION
 *  This function resets a DSP's framing interrupt statistics
 * 
 * RETURNS
 *  Status  code indicating success or a specific error.
 */

extern gpakReadDSPMemoryStat_t gpakReadDSPMemoryMap(
    unsigned short int  DspId,         // Dsp Identifier
    unsigned short int  *pDest,        // Buffer on host to hold DSP memory map
	DSP_ADDRESS BufrBaseAddress,       // DSP memory users want to read out
    unsigned short int   MemoryLength_Word16 // Length of memory section read out, unit is 16-bit word
    );

typedef enum
{
	GPIOSuccess =0,
	GPIOInvalidDsp = 1,
	GPIODspCommFailure = 2
}gpakAccessGPIOStat_t;

extern gpakAccessGPIOStat_t gpakAccessGPIO(
    unsigned short int      DspId,          // DSP identifier
	GpakGPIOCotrol_t        gpakControlGPIO,// select oeration, changeDIR/write/read
    unsigned short int      *pGPIOValue  // pointer for the read/write value or DIR mask
    );

/* gpakWriteSystemParms return status. */
typedef enum
{
    WspSuccess = 0,         /* System Parameters written successfully */
    WspParmError = 1,       /* Write System Parms's Parameter error */
    WspInvalidDsp = 2,      /* invalid DSP */
    WspDspCommFailure = 3   /* failed to communicate with DSP */
} gpakWriteSysParmsStatus_t;

/* Definition of a System Parameters information structure. */
typedef struct
{
    /* DTMF Parameters */
    short int MinSigLevel;      /* 0 = Disabled, Min Sig Power Level for detection */
    short int SNRFlag;          /* 0 = Disabled, relax SNR tolerances */
    short int FreqDeviation;    /* 0 = Disabled, X Percent Deviation times 10 (e.g. 1.7% is entered as 17) */
    short int DtmfFwdTwist;     /* 0 to 8 db */
    short int DtmfRevTwist;     /* 0 to 8 db */

	short int DtmfValidityMask; /* This flag allows users to relax the trailing conditions of the tone */

} GpakSystemParms_t;
/* gpakReadSystemParms return status. */
typedef enum
{
    RspSuccess = 0,         /* System Parameters read successfully */
    RspInvalidDsp = 1,      /* invalid DSP */
    RspDspCommFailure = 2   /* failed to communicate with DSP */
} gpakReadSysParmsStatus_t;

extern gpakReadSysParmsStatus_t gpakReadSystemParms(
    unsigned short int      DspId,  // DSP identifier
    GpakSystemParms_t *pSysParms    /* pointer to System Parms info var */
    );

extern gpakWriteSysParmsStatus_t gpakWriteSystemParms(
    unsigned short int      DspId,  // DSP identifier
    GpakSystemParms_t *pSysParms,   /* pointer to System Parms info var */
    unsigned short int UpdateBits, /* input: flags indicating which parms to update */
    GPAK_SysParmsStat_t *pStatus    /* pointer to Write System Parms Status */
    );

#endif // end multiple inclusion