/*
** Copyright (c) 2007-2010 by Silicon Laboratories
**
** $Id: proslic.h 3100 2011-09-15 14:04:54Z cdp $
**
** Proslic.h
**
** Author(s): 
** laj
**
** Distributed by: 
** Silicon Laboratories, Inc
**
** This file contains proprietary information.	 
** No dissemination allowed without prior written permission from
** Silicon Laboratories, Inc.
**
** File Description:
** This is the header file for the ProSLIC driver.
**
** Dependancies:
** proslic_datatypes.h
**
*/
#ifndef PROSLIC_H
#define PROSLIC_H

/*include all the required headers*/
#include "proslic_api_config.h"
#include "si_voice_datatypes.h"
#include "si_voice_ctrl.h"
#include "si_voice_timer_intf.h"
#include "si_voice.h"


/* UNSORTED ADDITIONS - These common parameters have been moved from
   the drivers to here to support simultaneous compile of multiple devices
   */
/* Patch Parameters */
#define PATCH_JMPTBL_LOW_ADDR       82
#define PATCH_NUM_LOW_ENTRIES       8
#define PATCH_JMPTBL_HIGH_ADDR      1597
#define PATCH_NUM_HIGH_ENTRIES      8
#define PATCH_JMPTBL_START_ADDR     82
#define PATCH_NUM_ENTRIES           8
#define PATCH_MAX_SUPPORT_RAM       128
#define PATCH_MAX_SIZE              1024

/* BOM Constants */
#define BOM_KAUDIO_PM               0x8000000L
#define BOM_KAUDIO_NO_PM            0x3A2E8BAL
#define BOM_AC_ADC_GAIN_PM          0x151EB80L
#define BOM_AC_AC_GAIN_NO_PM        0x99999AL
#define FIXRL_VDC_SCALE             0xAE924B9L  /** vdc sense scale when using fixed-rail */           

/* Generic Constants */
#define COMP_5V                     0x51EB82L 
#define VBATL_13V                   0xF00000L 
#define COMP_10V                    0xA3D705L 
#define ZCAL_V_RASUM_IDEAL_VAL      0x8F00000L
#define ZCAL_DC_DAC_OS_VAL          0x1FFE0000L  

/* MADC Constants */
#define SCALE_V_MADC                1074      /* 1/(1000*931.32e-9)  mV */
#define SCALE_I_MADC                597       /* 1/(1e6*1.676e-9)    uA */

/* Calibration Constants */
#define CAL_LB_CMDAC                0x0C
#define CAL_LB_TRNRD                0x03
#define CAL_LB_ALL                  0x0F  
#define TIMEOUT_MADC_CAL            100
#define TIMEOUT_GEN_CAL             300
#define TIMEOUT_LB_CAL              2410

/* 

/** @mainpage
 * This document is a supplement to the ProSLIC API Specification.  It has most
 * of the APIs documented and hyperlinked. 
 *
 * This document has the following tabs:
 *
 * - Main Page (this page) - introduction to the document.
 * - Related pages - mainly the deprecated list is located here. 
 *  Although these identifiers are present in the current release, they are 
 *  targeted for deletion in a future release.  Any existing customer code 
 *  using deprecated identifiers should be modified as indicated. 
 * - Modules - this is the meat of the document - this has each functional group in outline format listed here.
 * - Data Structures - This has every data structure listed in in the ProSLIC API in alphabetical order.
 * - Files - this has the source files in hyperlink format.  @note In some cases the hyperlink generator will not properly 
 *  generate the correct reference or not be able to find it.  In this case please use an alternative method.
 *
 */

/** @defgroup PROSLIC_TYPES ProSLIC General Datatypes/Function Definitions
 * This section documents functions and datastructures related to the 
 * ProSLIC/FXS chipsets.
 * @{
 */

/*
* ----------------ProSLIC Generic DataTypes/Function Definitions----
**********************************************************************
*/

#define MAX_PROSLIC_IRQS 32 /**< How many interrupts are supported in the ProSLIC */


#define ON_HOOK_TIMEOUT 0x7f /**< Returned by @ref ProSLIC_DialPulseDetect() to 
			          indicate a failure to detect a pulse digit */

/**********************************************************************/
/**
 * @defgroup PROLSIC_BRD_DESIGN Board design settings 
 * @{
 */
/**
* Battery Rail option
*/
typedef enum 
{
    BO_DCDC_TSS,        /**< Used for Fixed Rail DC-DC supplies */
    BO_DCDC_TRACKING,   /**< Used for Tracking DC-DC supplies */
    BO_DCDC_EXTERNAL,   /**< Used for external fixed rail supplies */
    BO_DCDC_TSS_ISO,    /**< Used for isolated TSS supplies */
    BO_DCDC_FIXED_RAIL = BO_DCDC_TSS     /**< Fixed rail replaced by TSS */
#ifndef SIVOICE_CFG_NEWTYPES_ONLY
    ,FIXED = BO_DCDC_FIXED_RAIL /**< @deprecated use BO_DCDC_FIXED_RAIL */
    ,TRACKING = BO_DCDC_TRACKING  /**< @deprecated use BO_DCDC_TRACKING */
#endif
} batRailType;

/**
* Linefeed part number options - which front end is used.
*/
typedef enum {
	SI3208,
	SI3209,
	SI3203,
	SI3206,
	SI3205,
	SI3201,
	SI3210_DISCRETE
} linefeed;
/** @} PROSLIC_BRD_DESIGN */

/**********************************************************************/
/**
* Map Proslic types to SiVoice types
*/
typedef SiVoiceControlInterfaceType controlInterfaceType; /**< Map ProSLIC to SiVoice type */
typedef SiVoiceControlInterfaceType proslicControlInterfaceType; /**< Map ProSLIC to SiVoice type */
typedef SiVoiceDeviceType ProslicDeviceType; /**< Map ProSLIC to SiVoice type */
typedef SiVoiceChanType proslicChanType; /**< Map ProSLIC to SiVoice type */

/**
* Define channel and device type pointers
*/
typedef ProslicDeviceType* proslicDeviceType_ptr; /**< Shortcut for pointer to a ProSLIC device type */
typedef proslicChanType *proslicChanType_ptr; /**< Shortcut for pointer to a ProSLIC channel type */

/** @} PROSLIC_TYPES */

/** @addtogroup PD_DETECT
 * @{
 */

/**
* This is structure used to store pulse dial information
*/
typedef struct {
	uInt8 currentPulseDigit;
	void *onHookTime; /**< Timestamp for when the onhook detection occured */
	void *offHookTime; /**< Timestamp for when the offhook detection occured */
} pulseDialType;

/**
* Defines structure for configuring pulse dial detection
*/
typedef struct {
	uInt8 minOnHook; /**< Min mSec for onhook */
	uInt8 maxOnHook; /**< Max mSec for onhook */
	uInt8 minOffHook; /**< Min mSec for offhook */
	uInt8 maxOffHook; /**< Max mSec for offhook */
} pulseDial_Cfg;
/** @} PD_DETECT */


/** @addtogroup PROSLIC_INTERRUPTS
 * @{
 */
/**
* Interrupt tags
*/

typedef enum {
IRQ_OSC1_T1,
IRQ_OSC1_T2,
IRQ_OSC2_T1,
IRQ_OSC2_T2,
IRQ_RING_T1,
IRQ_RING_T2,
IRQ_PM_T1,
IRQ_PM_T2,
IRQ_FSKBUF_AVAIL, /**< FSK FIFO depth reached */
IRQ_VBAT, 
IRQ_RING_TRIP, /**< Ring Trip detected */
IRQ_LOOP_STATUS,  /**< Loop Current changed */
IRQ_LONG_STAT,
IRQ_VOC_TRACK,
IRQ_DTMF,         /**< DTMF Detected - call @ref ProSLIC_DTMFReadDigit to decode the value */
IRQ_INDIRECT,     /**< Indirect/RAM access completed */
IRQ_TXMDM,
IRQ_RXMDM,
IRQ_PQ1,          /**< Power alarm 1 */
IRQ_PQ2,          /**< Power alarm 2 */
IRQ_PQ3,          /**< Power alarm 3 */
IRQ_PQ4,          /**< Power alarm 4 */
IRQ_PQ5,          /**< Power alarm 5 */
IRQ_PQ6,          /**< Power alarm 6 */
IRQ_RING_FAIL,
IRQ_CM_BAL,
IRQ_USER_0,
IRQ_USER_1,
IRQ_USER_2,
IRQ_USER_3,
IRQ_USER_4,
IRQ_USER_5,
IRQ_USER_6,
IRQ_USER_7,
IRQ_DSP,
IRQ_MADC_FS,
IRQ_P_HVIC,
IRQ_P_THERM, /**< Thermal alarm */
IRQ_P_OFFLD
}ProslicInt;

/**
* Defines structure of interrupt data - used by @ref ProSLIC_GetInterrupts 
*/
typedef struct {
	ProslicInt *irqs; /**< Pointer of an array of size MAX_PROSLIC_IRQS (this is to be allocated by the caller) */
	uInt8 number; /**< Number of IRQs detected/pending */
} proslicIntType;


/** @} PROSLIC_INTERRUPTS */

/** @addtogroup TONE_GEN
 * @{
 */
/**
* Defines structure for configuring 1 oscillator - see your datasheet for specifics or use the configuration
* tool to have this filled in for you.
*/
typedef struct {
	ramData freq;
	ramData amp;
	ramData phas;
	uInt8 talo;
	uInt8 tahi;
	uInt8 tilo;
	uInt8 tihi;
} Oscillator_Cfg;

/** @} TONE_GEN */

/*****************************************************************************/
/** @addtogroup SIGNALING 
 * @{
 */
/** 
* Hook states - retruned by @ref ProSLIC_ReadHookStatus()
*/
enum {
	PROSLIC_ONHOOK, /**< Hook state is onhook */
	PROSLIC_OFFHOOK /**< Hook state is offhook */
};

#ifndef SIVOICE_CFG_NEWTYPES_ONLY
enum {
ONHOOK = PROSLIC_ONHOOK, /**< @deprecated- Please use PROSLIC_ONHOOK and PROSLIC_OFFHOOK for future code development */
OFFHOOK = PROSLIC_OFFHOOK
};
#endif

/** @} SIGNALING */

/*****************************************************************************/
/** @addtogroup PCM_CONTROL
 * @{
* Loopback modes
*/
typedef enum {
	PROSLIC_LOOPBACK_NONE, /**< Loopback disabled */
	PROSLIC_LOOPBACK_DIG,  /**< Loopback is toward the PCM side */
	PROSLIC_LOOPBACK_ANA   /**< Loopback is toward the analog side */
} ProslicLoopbackModes;

/**
* Mute options - which direction to mute 
*/
typedef enum {
	PROSLIC_MUTE_NONE = 0,  /**< Don't mute */
	PROSLIC_MUTE_RX = 0x1,  /**< Mute toward the RX side */
	PROSLIC_MUTE_TX = 0x2,  /**< Mute toward the TX side */
	PROSLIC_MUTE_ALL = 0x3  /**< Mute both directions */
} ProslicMuteModes;

/** @} PCM_CONTROL */

/*****************************************************************************/
/** @addtogroup GAIN_CONTROL
 * @{
* Path Selector
*/
enum {
    TXACGAIN_SEL = 0,
    RXACGAIN_SEL = 1
};


/*
** Defines structure for configuring audio gain on the fly
*/
typedef struct {
	ramData acgain;
	uInt8 mute;
	ramData aceq_c0;
	ramData aceq_c1;
	ramData aceq_c2;
	ramData aceq_c3;
} ProSLIC_audioGain_Cfg;

/** @} GAIN_CONTROL */

/*****************************************************************************/
/** @addtogroup LINESTATUS
 * @{
 */
/**
* enumeration of the Proslic polarity reversal states - used by ProSLIC_PolRev API
*/
enum {
	POLREV_STOP, /**< Stop Polarity reversal */
	POLREV_START, /**< Start Polarity reversal */
	WINK_START, /**< Start Wink */
	WINK_STOP /**< Stop Wink */
};

/**
* Defines initialization data structures
* Linefeed states - used in @ref ProSLIC_SetLinefeedStatus and @ref ProSLIC_SetLinefeedStatusBroadcast
*/
enum {
LF_OPEN,          /**< Open circuit */
LF_FWD_ACTIVE,    /**< Forward actvie */
LF_FWD_OHT,       /**< Forward active, onhook transmission (used for CID/VMWI) */
LF_TIP_OPEN,      /**< Tip open */
LF_RINGING,       /**< Ringing */
LF_REV_ACTIVE,    /**< Reverse battery/polarity reversed, active */
LF_REV_OHT,       /**< Reverse battery/polarity reversed, active, onhook transmission (used for CID/VMWI) */
LF_RING_OPEN      /**< Ring open */
} ;
/** @} LINESTATUS */




/*****************************************************************************/
/** @addtogroup GEN_CFG
 * @{
 */

/**
* Defines initialization data structures
*/
typedef struct {
	uInt8 address;
	uInt8 initValue;
} ProslicRegInit;

typedef struct {
	uInt16 address;
	ramData initValue;
} ProslicRAMInit;

/**
* ProSLIC patch object
*/
typedef struct {
	const ramData *patchData; /**< 1024 max*/
	const uInt16 *patchEntries; /**< 8 max */
	const uInt32 patchSerial;  
    const uInt16 *psRamAddr;  /**< 128 max */
    const ramData *psRamData; /**< 128 max */
} proslicPatch;

/** @} GEN_CFG */


/*****************************************************************************/
/** @addtogroup RING_CONTROL 
 * @{
 */
/**
* Ringing type options
* Ringing type options - Trapezoidal w/ a Crest factor CF11= Crest factor 1.1 or sinusoidal.
*/
typedef enum
{
      ProSLIC_RING_TRAP_CF11,
      ProSLIC_RING_TRAP_CF12,
      ProSLIC_RING_TRAP_CF13,
      ProSLIC_RING_TRAP_CF14,
      ProSLIC_RING_TRAP_CF15,
      ProSLIC_RING_TRAP_CF16,
      ProSLIC_RING_SINE /***< Plain old sinusoidal ringing */
} ProSLIC_RINGTYPE_T;

/**
* Ringing (provisioned) object
*/
typedef struct 
{
      ProSLIC_RINGTYPE_T ringtype;  /**< Is this a sinusoid or a trapezoidal ring shape? */
      uInt8 freq;                   /**< In terms of Hz */
      uInt8 amp;                    /**< in terms of 1 volt units */
      uInt8 offset;                 /**< In terms of 1 volt units */
} ProSLIC_dbgRingCfg;


/** @} RING_CONTROL */

/*****************************************************************************/
/**
* Line Monitor - returned by @ref ProSLIC_LineMonitor
*/
typedef struct 
{
    int32  vtr; /**< Voltage, tip-ring in mV */
    int32  vtip;  /**< Voltage, tip-ground in mV */
    int32  vring;  /**< Voltage, ring-ground in mV */
    int32  vbat;  /**< Voltage, battery in mV */
    int32  itr; /**< Loop current, in uA tip-ring */
    int32  itip; /**< Loop current, in uA tip */
    int32  iring; /**< Loop current, in uA ring */
    int32  ilong; /**< Loop current, in uA longitudinal */
} proslicMonitorType;

/*****************************************************************************/
/** @addtogroup PROSLIC_DCFEED
 * @{
 */
/**
* Powersave
*/
enum {
    PWRSAVE_DISABLE = 0, /**< Disable power savings mode */
    PWRSAVE_ENABLE = 1   /**< Enable power savings mode */
};

/**
** DC Feed Preset
*/
typedef struct {
	ramData slope_vlim;
	ramData slope_rfeed;
	ramData slope_ilim;
	ramData delta1;
	ramData delta2;
	ramData v_vlim;
	ramData v_rfeed;
	ramData v_ilim;
	ramData const_rfeed;
	ramData const_ilim;
	ramData i_vlim;
	ramData lcronhk;
	ramData lcroffhk;
	ramData lcrdbi;
	ramData longhith;
	ramData longloth;
	ramData longdbi;
	ramData lcrmask;
	ramData lcrmask_polrev;
	ramData lcrmask_state;
	ramData lcrmask_linecap;
	ramData vcm_oh;
	ramData vov_bat;
	ramData vov_gnd;
} ProSLIC_DCfeed_Cfg;

/** @} PROSLIC_DCFEED */

/*****************************************************************************/
/** @defgroup ProSLIC_API ProSLIC API
* proslic.c function declarations
* @{
*/

/*****************************************************************************/
/** @defgroup DIAGNOSTICS Diagnostics
 * The functions in this group allow one to monitor the line state for abnormal
 * situations. 
 * @{
 */

/**
* Test State - used in polled tests (such as PSTN Check)
*/
typedef struct 
{
    int32 stage;               /**< What state is the test in */
    int32 waitIterations;      /**< How many iterations to stay in a particular state */
    int32 sampleIterations;    /**< How many  samples have been collected */
}proslicTestStateType;

/**
 * @brief
 *  This function allows one to monitor the instanteous voltage and
 *  loop current values seen on tip/ring.  
 *
 *  @param[in] pProslic - which channel should the data be collected from
 *  @param[in,out] *monitor -  the data collected
 *  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_LineMonitor(proslicChanType_ptr pProslic, proslicMonitorType *monitor);

int32 ProSLIC_ReadMADCScaled(proslicChanType_ptr pProslic, uInt16 addr, int32 scale);

/** @defgroup PSTN_CHECK PSTN Check
 * Monitor for excessive longitudinal current, which
 * would be present if a live pstn line was connected
 * to the port.  To operate these sets of functions:
 *
 * - Iniitalize the PSTN object by calling @ref ProSLIC_InitPSTNCheckObj
 * - Poll at a constant rate and call @ref ProSLIC_PSTNCheck.  Check the return code of this function.
 *
 * Alternatively, you can call the DiffPSTNCheck versions of the above two functions.
 *
 * @note These functions may be disabled by doing a undef of @ref PSTN_DET_ENABLE in the configuration file.
 * @{
*/
#define MAX_ILONG_SAMPLES 32 /**< How many samples to collect for PSTN check */
#define MAX_PSTN_SAMPLES 16 /**< Used in the PSTN check status code to indicate the number of samples to collect */

/**
* FEMF OPEN voltage test enable
*/
enum {
    FEMF_MEAS_DISABLE, /**< Do not measure FEMF as part of PSTN Check */
    FEMF_MEAS_ENABLE   /**< Do measure FEMF as part of PSTN Check */
};

/** Standard line interfaces */
typedef struct
{
    int32   avgThresh;
    int32   singleThresh;
    int32   ilong[MAX_ILONG_SAMPLES];
    uInt8   count;
    uInt8   samples;
    int32   avgIlong;
    BOOLEAN buffFull;
} proslicPSTNCheckObjType;

typedef proslicPSTNCheckObjType* proslicPSTNCheckObjType_ptr;


/** Re-Injection line interfaces (differential) */
typedef struct {
    proslicTestStateType pState;
    int dcfPreset1;
    int dcfPreset2;
    int entryDCFeedPreset;
    uInt8 lfstate_entry;
    uInt8 enhanceRegSave;
    uInt8 samples;
    int32 vdiff1[MAX_PSTN_SAMPLES];
    int32 vdiff2[MAX_PSTN_SAMPLES];
    int32 iloop1[MAX_PSTN_SAMPLES];
    int32 iloop2[MAX_PSTN_SAMPLES];
    int32 vdiff1_avg;
    int32 vdiff2_avg;
    int32 iloop1_avg;
    int32 iloop2_avg;
    int32 rl1;
    int32 rl2;
    int32 rl_ratio;
    int femf_enable;
    int32 vdiff_open;
    int32 max_femf_vopen;
    int return_status;
}proslicDiffPSTNCheckObjType;

typedef proslicDiffPSTNCheckObjType* proslicDiffPSTNCheckObjType_ptr;

/** @}PSTN_CHECK */
/** @}DIAGNOSTICS */
/*****************************************************************************/
/*
** proslic.c function declarations
*/

/** @defgroup PROSLIC_IF_CFG ProSLIC System control interface functions
 * This group of functions is called for allocating memory and configuring the ProSLIC API to call specific control interfaces that the user implemented.  
 *
 * @deprecated One should use the SiVoice equivalent functions. @ref SIVOICE_IF_CFG
 * @{
 */
/*****************************************************************************/

/** @defgroup PROSLIC_MEMORY_IF ProSLIC Memory allocation/deallocation 
 * @deprecated One should use the SiVoice equivalent functions located: @ref SIVOICE_MEMORY_IF
 * @{
 */

/**
 * @brief
 *  Allocate memory and initialize the given structure.
 *
 * @param[in,out] **pCtrlIntf - the structure to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_createControlInterface
 */

int ProSLIC_createControlInterface (controlInterfaceType **pCtrlIntf);

/**
 * @brief
 *  Allocate memory and initialize the given structure.
 *
 * @param[in,out] **pDevice - the structure to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_createDevice
 */

int ProSLIC_createDevice (ProslicDeviceType **pDevice);

/**
 * @brief
 *  Allocate memory and initialize the given structure.
 *
 * @param[in,out] *hProslic - the structure to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_createChannel
 */

int ProSLIC_createChannel (proslicChanType_ptr *hProslic);

/**
 * @brief
 *  Destroys the given structure and deallocates memory.
 *
 * @param[in,out] *hProslic - the structure to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_destroyChannel
 */

int ProSLIC_destroyChannel (proslicChanType_ptr *hProslic);

/**
 * @brief
 *  Destroys the given structure and deallocates memory.
 *
 * @param[in,out] **pDevice - the structure to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_destroyDevice
 */

int ProSLIC_destroyDevice (ProslicDeviceType **pDevice);

/**
 * @brief
 *  Destroys the given structure and deallocates memory.
 *
 * @param[in,out] **pCtrlIntf - the structure to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_destroyControlInterface
 */

int ProSLIC_destroyControlInterface (controlInterfaceType **pCtrlIntf);

/** @} PROSLIC_MEMORY_IF */

/*****************************************************************************/
/** @defgroup PROSLIC_IO ProSLIC SPI/GCI access routines 
 * This group of functions are used to associcate the transport mechanism (SPI, GCI) functions with the API.  The actual
 * functions being references are normally implemented by the customer for their particualr OS and platform.
 *
 * @deprecated One should use the SiVoice equivalent functions located: @ref SIVOICE_IO
 * @{
 */

/**
 * @brief
 *  Associate a interface object with a user supplied datastructure.  This 
 *  structure is passed to all the I/O routines that the ProSLIC API calls.
 *
 * @param[in,out] *pCtrlIntf - which interface to associate 
 *                the user supplied structure with.
 * @param[in] hCtrl - the user supplied structure.
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_setControlInterfaceCtrlObj
 */

int ProSLIC_setControlInterfaceCtrlObj (controlInterfaceType *pCtrlIntf, void *hCtrl);

/**
 * @brief
 *  Associate a interface object with the reset function.
 *
 * @param[in,out] pCtrlIntf - which interface to associate 
 *                the user supplied function with.
 * @param[in] Reset_fptr - the reset function pointer
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use SiVoice_setControlInterfaceReset
 */

int ProSLIC_setControlInterfaceReset (controlInterfaceType *pCtrlIntf, ctrl_Reset_fptr Reset_fptr);

/**
 * @brief
 *  Associate a interface object with the register write function.
 *
 * @param[in,out] pCtrlIntf - which interface to associate 
 *                the user supplied function with.
 * @param[in] WriteRegister_fptr - the register write function pointer
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use SiVoice_setControlInterfaceWriteRegister
 */

int ProSLIC_setControlInterfaceWriteRegister (controlInterfaceType *pCtrlIntf, ctrl_WriteRegister_fptr WriteRegister_fptr);

/**
 * @brief
 *  Associate a interface object with the register read function.
 *
 * @param[in,out] pCtrlIntf - which interface to associate the user supplied function with.
 * @param[in] ReadRegister_fptr - the register read function pointer
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_setControlInterfaceReadRegister
 */

int ProSLIC_setControlInterfaceReadRegister (controlInterfaceType *pCtrlIntf, ctrl_ReadRegister_fptr ReadRegister_fptr);

/**
 * @brief
 *  Associate a interface object with the write RAM function.
 *
 * @param[in,out] pCtrlIntf - which interface to associate the user supplied function with.
 * @param[in] WriteRAM_fptr - the reset function pointer
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_setControlInterfaceWriteRAM
 */

int ProSLIC_setControlInterfaceWriteRAM (controlInterfaceType *pCtrlIntf, ctrl_WriteRAM_fptr WriteRAM_fptr);

/**
 * @brief
 *  Associate a interface object with the read RAM function.
 *
 * @param[in,out] pCtrlIntf - which interface to associate 
 *                the user supplied function with.
 * @param[in] ReadRAM_fptr - the read RAM function pointer
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_setControlInterfaceReadRAM
 */

int ProSLIC_setControlInterfaceReadRAM (controlInterfaceType *pCtrlIntf, ctrl_ReadRAM_fptr ReadRAM_fptr);

/** @} PROSLIC_IO */

/*****************************************************************************/
/** @defgroup PROSLIC_TIMER ProSLIC Timer functions
 * This group of functions associates the customer supplied timer routines with the ProSLIC API.
 * In most cases, only the delay function is needed.  The other functions which are related
 * to elapsed time can be set to NULL under this situation.
 *
 * @deprecated One should use the SiVoice equivalent functions located: @ref SIVOICE_TIMER
 * @{
 */

/**
 * @brief
 *  This function associates a timer object - which is user defined, but it is 
 *  used with ALL channels of the particular control interface.
 *
 * @param[in] pCtrlIntf - which control interface to associate the given timer object with.
 * @param[in] hTimer  - the timer ojbect that is passed to all timer functions.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa SIVOICE_TIMER ProSLIC_setControlInterfaceDelay ProSLIC_setControlInterfaceTimeElapsed ProSLIC_setControlInterfaceGetTime
 * @deprecated Use @ref SiVoice_setControlInterfaceTimerObj
 */

int ProSLIC_setControlInterfaceTimerObj (controlInterfaceType *pCtrlIntf, void *hTimer);

/** 
 * @brief
 *  Associate a timer delay function with a given control interface.  The 
 *  delay function takes in an argument of the timer object and the time in mSec
 *  and delays the thread/task for at least the time requested.
 *
 *  @param[in] pCtrlIntf - which control interface to associate the function with.
 *  @param[in] Delay_fptr - the pointer to the delay function.
 *  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 *  @sa SIVOICE_TIMER ProSLIC_setControlInterfaceTimerObj ProSLIC_setControlInterfaceTimeElapsed ProSLIC_setControlInterfaceGetTime
 * @deprecated Use @ref SiVoice_setControlInterfaceDelay
 */

int ProSLIC_setControlInterfaceDelay (controlInterfaceType *pCtrlIntf, system_delay_fptr Delay_fptr);

/** 
 *  @brief
 *   Associate a time elapsed function with a given control interface.  The
 *   time elapsed function uses the values from the function specified in
 *   @ref SiVoice_setControlInterfaceGetTime and computes the delta time
 *   in mSec.
 *   @param[in] pCtrlIntf - which control interface to associate the function with.
 *   @param[in] timeElapsed_fptr     - the pointer to the elapsed time function.
 *   @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *   @sa SIVOICE_TIMER ProSLIC_setControlInterfaceTimerObj ProSLIC_setControlInterfaceDelay ProSLIC_setControlInterfaceGetTime
 * @deprecated Use @ref SiVoice_setControlInterfaceTimeElapsed
 */

int ProSLIC_setControlInterfaceTimeElapsed (controlInterfaceType *pCtrlIntf, system_timeElapsed_fptr timeElapsed_fptr);

/** 
 *  @brief
 *   Associate a time get function with a given control interface.  The
 *   time get function returns a value in a form of a void pointer that 
 *   is suitable to be used with the function specified in @ref SiVoice_setControlInterfaceTimeElapsed .
 *   This is typically used as a timestamp of when an event started. The resolution needs to be in terms
 *   of mSec.
 *
 *   @param[in] pCtrlIntf - which control interface to associate the function with.
 *   @param[in] getTime_fptr -  the pointer to the get time function.
 *   @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *   @sa SIVOICE_TIMER ProSLIC_setControlInterfaceTimerObj ProSLIC_setControlInterfaceDelay ProSLIC_setControlInterfaceTimeElapsed
 * @deprecated Use @ref SiVoice_setControlInterfaceGetTime
 */

int ProSLIC_setControlInterfaceGetTime (controlInterfaceType *pCtrlIntf, system_getTime_fptr getTime_fptr);

/** @} PROSLIC_TIMER */

/*****************************************************************************/
/** @defgroup PROSLIC_PROC_CONTROL ProSLIC Process control 
 * @{*/

/**
 * @brief
 *  This function assoicates a user defined semaphore/critical section
 *  function with the given interface.
 *
 * @param[in,out] pCtrlIntf - the interface to associate the function with.
 * @param[in] semaphore_fptr - the function pointer for semaphore control.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @deprecated Use @ref SiVoice_setControlInterfaceSemaphore
 */

int ProSLIC_setControlInterfaceSemaphore (controlInterfaceType *pCtrlIntf, ctrl_Semaphore_fptr semaphore_fptr);

/** @} PROSLIC_PROC_CONTROL */
/** @} PROSLIC_IF_CFG */

/*****************************************************************************/
/** @defgroup GEN_CFG General configuration
 * @{
 */

/**
 * @brief
 *  This function initializes the various channel structure elements.  
 *  This function does not access the chipset directly, so SPI/GCI
 *  does not need to be up during this function call.
 *
 *  It is suggested to migrate to the @ref SiVoice_SWInitChan in new
 *  implementations.
 *
 * @param[in,out] hProslic - which channel to initialize.
 * @param[in] channel - Which channel index is this.  For example, for a 4 channel system, this would typically range from 0 to 3.
 * @param[in] chipType - chipset family type for example @ref SI321X_TYPE or @ref SI3217X_TYPE
 * @param[in] deviceObj - Device structure pointer associated with this channel
 * @param[in] pCtrlIntf - Control interface associated with this channel
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_SWInitChan
 */

int ProSLIC_SWInitChan (proslicChanType_ptr hProslic,int channel,int chipType, ProslicDeviceType*deviceObj,controlInterfaceType *pCtrlIntf);


/** 
 *  
 * @brief
 *  Calibrates the ProSLIC (on some variants).  This typically only needs to be performed during 
 *  initial setup and will itterate through all channels specified by the size parameter starting
 *  from 0.
 *
 * @param[in] hProslic - array of channels
 * @param[in] size - number of channels present/number to itterate through.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *  
 * @sa PROSLIC_LB_CALIBRATION
 * @deprecated This function does not need to be called externally since the normal initialization function will take care of this.
 */

int ProSLIC_Cal (proslicChanType_ptr *hProslic, int size);

/**
 * @brief
 * This function calls the user supplied reset function to put and take out the channel from reset. This is
 * typically done during initialization and may be assumed to be a "global" reset - that is 1 reset per
 * daisychain vs. 1 per device.
 *
 * @note This function can take more than 500 mSec to complete.
 *
 * @param[in] hProslic - which channel to reset, if a "global reset", then any channel on the daisy chain is sufficient.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_Reset (proslicChanType_ptr hProslic);

/**
 * @brief
 *  Safely shutdown channel w/o interruptions to other active channels
 *
 * @param[in] hProslic - which channel to shut down
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_ShutdownChannel (proslicChanType_ptr hProslic);

/**
 * @brief
 *  Loads patch and initializes all ProSLIC devices. Performs all calibrations except
 *  longitudinal balance.
 *
 * @param[in] hProslic - which channel(s) to initialize, if size > 1, then the start of the array
 * of channels to be initialized.
 * @param[in] size - the number of channels to initialize.
 * @param[in] preset - general configuration preset to apply
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_Init
 */

int ProSLIC_Init_MultiBOM (proslicChanType_ptr *hProslic, int size, int preset);

/**
 * @brief
 *  Loads patch and initializes all ProSLIC devices. Performs all calibrations except
 *  longitudinal balance.
 *
 * @param[in] hProslic - which channel(s) to initialize, if size > 1, then the start of the array
 * of channels to be initialized.
 * @param[in] size - the number of channels to initialize.
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_InitBroadcast
 */

int ProSLIC_Init (proslicChanType_ptr *hProslic, int size);

/**
 * @brief
 *  Loads patch and initializes all ProSLIC devices on the same daisy chain including 
 *  performing all calibrations and applying the patch (if necessary).
 *
 * @param[in] hProslic - which channel(s) to initialize
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @deprecated 
 * Use the @ref ProSLIC_Init function
 *
 * @sa ProSLIC_Init
 */

int ProSLIC_InitBroadcast (proslicChanType_ptr *hProslic);

/**
 * @brief
 *  Performs soft reset then calls ProSLIC_Init()
 *
 * @param[in] hProslic - which channel(s) to initialize, if size > 1, then the start of the array
 * of channels to be initialized.
 * @param[in] size - the number of channels to initialize.
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_InitBroadcast
 */

int ProSLIC_Reinit (proslicChanType_ptr hProslic, int size);


/**
 * @brief 
 * Loads registers and RAM in the ProSLICs specicified.
 *
 * @param[in] pProslic - array of channels
 * @param[in] pRamTable - array of RAM locations and values to write
 * @param[in] pRegTable - array of register locations and values to write
 * @param[in] size - number of ProSLICS to write to.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @deprecated This function should NOT be used since it can bypass the standard initialization/operational state of the
 * ProSLIC.
 */

int ProSLIC_LoadRegTables (proslicChanType_ptr *pProslic,ProslicRAMInit *pRamTable, ProslicRegInit *pRegTable, int size);

/**
 * @brief 
 *  Configure impedence synthesis
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which impedence configuration to load from the constants file.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be disabled by @ref DISABLE_ZSYNTH_SETUP
 */


int ProSLIC_ZsynthSetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief
 *  This function configures the CI bits (GCI mode)
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which GCI preset to use from the contstants file
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be disabled by @ref DISABLE_CI_SETUP
 */

int ProSLIC_GciCISetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief
 *  This function sets the modem tone detection parameters for ProSLIC by loading a modem
 *  tone detection preset
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which MODEM preset to use.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_ModemDetSetup (proslicChanType_ptr hProslic,int preset);

/*****************************************************************************/
/** @defgroup PROSLIC_ERROR_CONTROL Return code functions
 * This group of functions are used for when the ProSLIC API function does
 * not reutrn a standard error value and instead returns back some other value.
 * You may call these functions to see if there was an error preset and to clear 
 * the error state.
 *
 * @{
 */

/**
 * @brief
 * This function returns the error flag that may be set by some function in where
 * @ref errorCodeType is not returned.  
 *
 * @note For functions that DO return errorCodeType, the return value here is undefined.
 *
 * @param[in] hProslic - which channel to clear the error flag
 * @param[in,out] error - The current value of error flag.  
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_getErrorFlag
 *
 * @sa ProSLIC_clearErrorFlag
 */

int ProSLIC_getErrorFlag (proslicChanType_ptr hProslic, int *error);

/**
 * @brief
 *  This function clears the error flag that may be set by some function in where
 *  @ref errorCodeType is not returned.
 *
 * @param[in,out] hProslic - which channel to clear the error flag
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_clearErrorFlag
 *
 * @sa ProSLIC_getErrorFlag
 */

int ProSLIC_clearErrorFlag (proslicChanType_ptr hProslic);

/** @} PROSLIC_ERROR_CONTROL */
/*****************************************************************************/
/** @defgroup PROSLIC_DEBUG Debug 
 * This group of functions enables/disables debug messages as well as dump 
 * register contents.
 * @{
 */

/**
 * @brief
 * This function enables or disables the debug mode, assuming @ref ENABLE_DEBUG is set in the configuration file.
 *
 * @param[in] hProslic - which channel to set the debug flag.
 * @param[in] debugEn - 0 = Not set, 1 = set.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @deprecated Use @ref SiVoice_setSWDebugMode
 *
 */

int ProSLIC_setSWDebugMode (proslicChanType_ptr hProslic, int debugEn);

/**
 * @brief
 * This function allows access to SPI read register function pointer from interface
 *
 * @param[in] hProslic - pointer to channel structure
 * @param[in] addr - address to read
 * @retval uInt8 - register contents
 *
 */
uInt8 ProSLIC_ReadReg (proslicChanType_ptr hProslic, uInt8 addr);

/**
 * @brief
 * This function allows access to SPI write register function pointer from interface
 *
 * @param[in] hProslic - pointer to channel structure
 * @param[in] addr - address to write
 * @param[in] data to be written
 * @retval int - @ref RC_NONE
 *
 */
int ProSLIC_WriteReg (proslicChanType *pProslic, uInt8 addr, uInt8 data);

/**
 * @brief
 * This function allows access to SPI read RAM function pointer from interface
 *
 * @param[in] hProslic - pointer to channel structure
 * @param[in] addr - address to read
 * @retval ramData - RAM contents
 *
 */
ramData ProSLIC_ReadRAM (proslicChanType *pProslic, uInt16 addr);

/**
 * @brief
 * This function allows access to SPI write RAM function pointer from interface
 *
 * @param[in] hProslic - pointer to channel structure
 * @param[in] addr - address to write
 * @param[in] data to be written
 * @retval int - @ref RC_NONE
 *
 */
int ProSLIC_WriteRAM (proslicChanType *pProslic, uInt16 addr, ramData data);

/**
 * @brief
 * This function dumps to console the register contents of several
 * registers and RAM locations.
 *
 * @param[in] pProslic - which channel to dump the register contents of.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */
int ProSLIC_PrintDebugData (proslicChanType *pProslic);

/**
 * @brief
 * This function dumps the registers to the console using whatever
 * I/O method is defined by LOGPRINT
 *
 * @param[in] pProslic - which channel to dump the register contents of.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */
int ProSLIC_PrintDebugReg (proslicChanType *pProslic);

/**
 * @brief
 * This function dumps the RAM to the console using whatever
 * I/O method is defined by LOGPRINT
 *
 * @param[in] pProslic - which channel to dump the RAM contents of.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */
int ProSLIC_PrintDebugRAM (proslicChanType *pProslic);

/** @} PROSLIC_DEBUG */
/*****************************************************************************/
/** @defgroup PROSLIC_ENABLE Enable/disable channels (for init)
 * @{
 */

/**
 * @brief
 *  This function sets the channel enable status.  If NOT set, then when
 *  the various initialization routines such as @ref ProSLIC_SWInitChan is called,
 *  then this particular channel will NOT be initialized.
 *
 *  This function does not access the chipset directly, so SPI/GCI
 *  does not need to be up during this function call.
 *
 * @param[in,out] hProslic - which channel to return the status.
 * @param[in] chanEn - The new value of the channel enable field. 0 = NOT enabled, 1 = enabled.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_getChannelEnable
 */

int ProSLIC_setChannelEnable (proslicChanType_ptr hProslic, int chanEn);

/**
 * @brief
 *  This function returns back if the channel is enabled or not.
 *  This function does not access the chipset directly, so SPI/GCI
 *  does not need to be up during this function call.
 *
 * @param[in] hProslic - which channel to return the status.
 * @param[in,out] chanEn - The current value of if the channel is enabled. 0 = NOT enabled, 1 = enabled.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_setChannelEnable
 */

int ProSLIC_getChannelEnable (proslicChanType_ptr hProslic, int* chanEn);

/**
 * @brief
 *  This function sets the channel enable status of the FXO channel on ProSLIC devices
 *  with integrated FXO.  If NOT set, then when
 *  the various initialization routines such as @ref ProSLIC_SWInitChan is called,
 *  then this particular channel will NOT be initialized.
 *
 *  This function does not access the chipset directly, so SPI/GCI
 *  does not need to be up during this function call.
 *
 * @param[in,out] pProslic - which channel to return the status.
 * @param[in] enable - The new value of the channel enable field. 0 = NOT enabled, 1 = enabled.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_getChannelEnable
 */

int ProSLIC_SetDAAEnable(proslicChanType *pProslic, int enable);

/** @} PROSLIC_ENABLE */

/*****************************************************************************/
/** @defgroup PROSLIC_PATCH Patch management.
 * This group of functions write and verify the patch data needed by the 
 * ProSLIC chipset.
 * @{
 */

/**
 * @brief 
 * Calls patch loading function for a particular channel/ProSLIC
 *
 * @param[in] hProslic - which channel/ProSLIC should be patched
 * @param[in] pPatch - the patch data
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * 
 * @note This function should not be called directly under normal circumstances since the initialization function should 
 *       perform this operation.
 *
 * @sa ProSLIC_Init
 */

int ProSLIC_LoadPatch (proslicChanType_ptr hProslic,proslicPatch *pPatch);

/**
 * @brief 
 *  Verifies patch loading function for a particular channel/ProSLIC
 *
 * @param[in] hProslic - which channel/ProSLIC should be patched
 * @param[in] pPatch - the patch data to verify was written to.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * 
 * @note This function should not be called directly under normal circumstances since the initialization function should 
 *       perform this operation, unless @ref DISABLE_VERIFY_PATCH is defined.
 *
 * @sa ProSLIC_Init
 */

int ProSLIC_VerifyPatch (proslicChanType_ptr hProslic,proslicPatch *pPatch);

/** @} PROSLIC_PATCH */

/*****************************************************************************/
/** @defgroup PROSLIC_GPIO GPIO Control
 * This group of functions configure, read and write the GPIO status pins.
 * @{
 */

/**
 * @brief
 *  This function configures the ProSLIC GPIOs by loading a gpio preset that was
 *  set in the configuration tool.
 * @param[in] hProslic - which channel to configure the GPIO pins.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_GPIOControl
 */

 int ProSLIC_GPIOSetup (proslicChanType_ptr hProslic);

/**
 * @brief
 *  This function controls the GPIOs of the ProSLIC.
 *
 * @param[in] hProslic - which channel to modify
 * @param[in,out] pGpioData  - pointer to GPIO status (typcially 1 byte)
 * @param[in] read - 1 = Read the status, 0 = write the status
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_GPIOSetup
 */

int ProSLIC_GPIOControl (proslicChanType_ptr hProslic,uInt8 *pGpioData, uInt8 read);

/** @} PROSLIC_GPIO */
/** @} GEN_CFG */

/*****************************************************************************/
/** @defgroup PROSLIC_PULSE_METER Pulse Metering
 *
 * This group contains functions related to pulse metering.
 * @{
 */

 /**
 * @brief
 *  This function configures the ProSLIC pulse metering by loading a pulse metering preset.
 *
 * @param[in] hProslic - which channel should be configured
 * @param[in] preset - which preset to load from the defined settings made in the configuration tool.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_PulseMeterStart ProSLIC_PulseMeterStop
 */

int ProSLIC_PulseMeterSetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief
 *  This function starts the pulse metering tone.
 *
 * @param[in] hProslic - which channel should play the tone.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_PulseMeterSetup ProSLIC_PulseMeterStop
 *
 */

int ProSLIC_PulseMeterStart (proslicChanType_ptr hProslic);

/**
 * @brief
 *  This function stops the pulse metering tone.
 *
 * @param[in] hProslic - which channel should play the tone.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa PProSLIC_PulseMeterStart ProSLIC_PulseMeterSetup
 *
 */

int ProSLIC_PulseMeterStop (proslicChanType_ptr hProslic);

/** @} PROSLIC_PULSE_METER */

/*****************************************************************************/
/** @defgroup PROSLIC_INTERRUPTS Interrupt control and decode
 * @{
 */

/**
 * @brief 
 *  Enables interrupts configured in the general configuration data structure.
 *
 * @param[in]  hProslic - which channel to enable the interrupts.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * 
 */

int ProSLIC_EnableInterrupts (proslicChanType_ptr hProslic);

/**
 * @brief 
 *  This function reads the interrupts from the ProSLIC and places them into 
 *  a @ref proslicIntType structure which contains up to @ref MAX_PROSLIC_IRQS
 *  interrupts. 
 *
 * @param[in] hProslic - which channel to enable the interrupts.
 * @param[in,out] pIntData - this structure contains the interupts pending and the number of interrupts.
 * @retval int - number of interrupts pending or RC_CHANNEL_TYPE_ERR if wrong chip type or 0 for no interrupts.
 * 
 */

int ProSLIC_GetInterrupts (proslicChanType_ptr hProslic,proslicIntType *pIntData);

/**
 * @brief
 *  This function disables and clears interrupts on the given channel.
 *
 *  @param[in] hProslic - which channel to disable
 *  @retval int - error from @ref errorCodeType @ref RC_NONE indicates no error.
 */

int ProSLIC_DisableInterrupts (proslicChanType_ptr hProslic);

/** @} PROSLIC_INTERRUPTS */

/*****************************************************************************/
/** @defgroup SIGNALING Signaling - ring & line state, and hook state
 * @{
 */

/**
* Function: PROSLIC_ReadHookStatus
*
* @brief 
* Determine hook status
* @param[in] hProslic - which channel to read from.
* @param[out] *pHookStat - will contain either @ref PROSLIC_ONHOOK or @ref PROSLIC_OFFHOOK
* 
*/

int ProSLIC_ReadHookStatus (proslicChanType_ptr hProslic,uInt8 *pHookStat);

/*****************************************************************************/
/** @defgroup LINESTATUS Line Feed status 
 * @{
 */

/** 
 * @brief
 *  This function sets the linefeed state.
 *
 * @param[in] hProslic - which channel to modify
 * @param[in] newLinefeed - new line feed state  - examples: LF_OPEN, LF_FWD_ACTIVE
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_SetLinefeedStatus (proslicChanType_ptr hProslic,uInt8 newLinefeed);

/** 
 * @brief
 *  This function sets the linefeed state for all channels on the same daisychain.
 *
 * @param[in] hProslic - which channel to modify
 * @param[in] newLinefeed - new line feed state  - examples: LF_OPEN, LF_FWD_ACTIVE
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_SetLinefeedStatusBroadcast (proslicChanType_ptr hProslic,uInt8 newLinefeed);

/** 
 * @brief
 *  This function sets the polarity/wink state of the channel.
 *
 * @param[in] hProslic - which channel to modify
 * @param[in] abrupt  - to change the state immeediately
 * @param[in] newPolRevState - new polarity state  - examples: POLREV_STOP, POLREV_START and WINK_START
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_PolRev (proslicChanType_ptr hProslic,uInt8 abrupt,uInt8 newPolRevState);

/** @} LINESTATUS */

/*****************************************************************************/
/** @defgroup RING_CONTROL Ring generation 
 * @{
 */

/**
 * @brief 
 *  Configure the ringer to the given preset (see your constants header file for exact value to use).
 *  This includes timing, cadence, OHT mode, voltage levels, etc.
 *
 * @param[in]  hProslic - which channel to configure
 * @param[in]  preset - which of the xxxx_Ring_Cfg structures to use to configure the channel.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be compiled out by defining @ref DISABLE_RING_SETUP
 *
 * @sa ProSLIC_dbgSetRinging ProSLIC_RingStart ProSLIC_RingStop
 */

int ProSLIC_RingSetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief 
 *  Starts the ringer as confgured by @ref ProSLIC_RingSetup .  If the active and inactive timers are enabled,
 *  the ProSLIC will automatically turn on/off the ringer as programmed, else one will need to
 *  manually implement the ring cadence.  In either case, one will need to call ProSLIC_RingStop to
 *  stop the ringer or one may call @ref ProSLIC_SetLinefeedStatus to change the state directly.
 *
 * @param[in]  hProslic - which channel to enable ringing.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be compiled out by defining @ref DISABLE_RING_SETUP
 *
 * @sa ProSLIC_dbgSetRinging ProSLIC_RingStop ProSLIC_RingSetup
 */

int ProSLIC_RingStart (proslicChanType_ptr hProslic);

/** 
 * @brief
 *  Stop the ringer on the given channel and set the line state to forward active.
 *
 * @param[in] hProslic - which channel to modify.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * @sa ProSLIC_RingSetup ProSLIC_RingStart 
 */

int ProSLIC_RingStop (proslicChanType_ptr hProslic);

/** 
 * @brief
 *  Provisionary function for setting up Ring type, frequency, amplitude and dc offset and
 *  to store them in the given preset. 
 *
 * @note: This function calculates the values, it does not set them.
 *
 * @param[in] pProslic - which channel to modify
 * @param[in] ringCfg - how to configure the channel's ringer
 * @param[in] preset - where to store the new configuration.
 * @sa ProSLIC_RingSetup ProSLIC_RingStart ProSLIC_RingStop
 */

int ProSLIC_dbgSetRinging (proslicChanType *pProslic, ProSLIC_dbgRingCfg *ringCfg, int preset);

/** @} RING_CONTROL */
/** @} SIGNALING */

/*****************************************************************************/
/** @defgroup PROSLIC_AUDIO Audio
 * This group of functions contains routines to configure the PCM bus, to generate tones, and to send FSK data.
 *
 * In order to start using the PCM bus, you would typically initialize the PCM bus with code similar to
 * the following:
 *
 * @code
 * if( (ProSLIC_PCMSetup(myProSLIC, MY_COMPANDING) != RC_NONE) 
 * 	|| (ProSLIC_PCMTimeSlotSetup(myProSLIC, pcm_ts, pcm_ts) != RC_NONE)
 * 	|| (ProSLIC_PCMStart(myProSLIC) != RC_NONE))
 * {
 * 	return MY_PCM_INIT_ERROR;
 * }
 * @endcode
 *
 * @{ 
 * @defgroup TONE_GEN Tone generation 
 * This group of functions is related to playing out general tones - such as dial tone, busy tone, etc.  One would
 * typically call @ref ProSLIC_ToneGenSetup first followed by @ref ProSLIC_ToneGenStart and after some time, a call to
 * @ref ProSLIC_ToneGenStop to stop the tone.  The direction of the tone and cadence (if any) are configured using the 
 * GUI configuration tool's TONE dialog box and then saved in the constants file.
 *
 * @{
 */
/**
 * @brief 
 *  Configure the tone generator to the given preset (see your constants header file for exact value to use).  It does NOT
 *  play a particular tone out.
 *
 * @warning If @ref ProSLIC_FSKSetup was called earlier, this function will need to be called again.
 *
 * @param[in]  hProslic - which channel to configure
 * @param[in]  preset - which of the xxxx_Tone_Cfg structures to use to configure the channel.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be compiled out by defining @ref DISABLE_TONE_SETUP.
 *
 * @note Typically, if one is using the ProSLIC for tone generation, you will be calling this function prior to each call
 *       into @ref ProSLIC_ToneGenStart so that the correct tone is played out.
 */

int ProSLIC_ToneGenSetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief
 *  This function starts the tone configured by @ref ProSLIC_ToneGenSetup.  
 *  It is assumed that the @ref PROSLIC_AUDIO setup was performed
 *  prior to calling this function.  Also, it is suggested that 
 *  @ref ProSLIC_ToneGenSetup be called if @ref FSK_CONTROL
 *  functions were used.
 *
 *  @param[in] hProslic - which channel should play the tone.
 *  @param[in] timerEn - are the timers to be enabled?  1 = Yes, 0 = No. When in doubt, set to 1.
 *  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_ToneGenSetup ProSLIC_ToneGenStop
 */

int ProSLIC_ToneGenStart (proslicChanType_ptr hProslic, uInt8 timerEn);

/**
 * @brief
 *  This function turns off tone generation initiated by @ref ProSLIC_ToneGenStart.
 *
 * @param[in] hProslic - which channel should stop playing the tone.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_ToneGenStart ProSLIC_ToneGenSetup
 */

int ProSLIC_ToneGenStop (proslicChanType_ptr hProslic);

/** @} TONE_GEN */

/*****************************************************************************/
/** @defgroup FSK_CONTROL FSK/Caller ID generation 
 * This group of functions is related to FSK generation, typically used with Caller ID/Call Waiting 
 * functionality. To set the frequencies, the data rate, and the FSK FIFO depth, please use the configuration
 * GUI FSK dialog box.
 *
 * Here's a simple example code fragment to send data via FSK:
 *
 * @code
 * if( ProSLIC_FSKSetup(myProSLICChan, PROSLIC_NORTH_AMERICA_FSK) == RC_NONE)
 * {
 * 	ProSLIC_EnableCID(myProSLICChan);
 *
 *	bytes_left_to_send = bufsz;
 *
 * 	do
 * 	{
 * 		if(bytes_left_to_send < FIFO_DEPTH)
 * 		{
 * 			bytes_to_send = bytes_left_to_send;
 * 		}
 * 		else
 * 		{
 * 			bytes_to_send = FIFO_DEPTH;
 *		}
 *
 * 		if( ProSLIC_SendCID(myProSLICChan,buf,bytes_to_send) != RC_NONE)
 * 		{
 * 			ProSLIC_DisableCID(myProSLICChan);
 * 			return MY_FSK_ERROR;
 * 		}
 *            
 *		bytes_left_to_send -= bytes_to_send;
 *		
 *		if(bytes_left_to_send)
 *		{
 *			do
 *			{
 *				ProSLIC_CheckCIDBuffer(myProSLICChan, &is_fifo_empty);
 *
 *			} while( is_fifo_empty != 1 );
 *		}	
 *				
 * 	}while( bytes_left_to_send > 0);
 *
 * 	ProSLIC_DisableCID(myProSLICChan);
 * @endcode
 *
 * @note The above code fragment is sub-optimal since it does constantly poll the CID buffer
 * state - one may want to implement the actual code using interrupts.
 * @{
 */

/** 
 * @brief
 *  Configures the FSK generator from a configuration generated by the config tool.
 *
 * @warning If @ref ProSLIC_ToneGenSetup was called earlier, this function will need to be called again.
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which FSK configuration to use.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be compiled out by defining DISABLE_FSK_SETUP
 */

int ProSLIC_FSKSetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief 
 *  This function enables FSK mode and clears the FSK FIFO.  It is assumed that PCM has been enabled and that @ref ProSLIC_FSKSetup
 *  has been called at some point.  
 *
 * @warning If @ref ProSLIC_ToneGenSetup was called earlier, @ref ProSLIC_FSKSetup will need to be called again.
 *
 * @param[in] hProslic - which channel to check upon.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_EnableCID (proslicChanType_ptr hProslic);

/**
 * @brief 
 *  This function disables FSK mode.
 *
 * @param[in] hProslic - which channel to disable FSK mode.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_DisableCID (proslicChanType_ptr hProslic);

/**
 * @brief 
 *  Check if the FSK FIFO is empty or not.
 *
 * @param[in] hProslic - which channel to check upon.
 * @param[out] fsk_buf_avail - is the buffer available? 1 = Yes, 0  = No.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note - This modifies the IRQ1 register contents, so some other interrupts may be lossed. An alternative is to enable the
 *         FSK FIFO interrupt and trigger off of it when it does occur in your interrupt service routine.
 */

int ProSLIC_CheckCIDBuffer (proslicChanType_ptr hProslic, uInt8 *fsk_buf_avail);

/**
 * @brief 
 *  Send numBytes as FSK encoded data.  It is assumed that numBytes <= FIFO Depth (typically 8) and that the FIFO
 *  is free. It is also assumed that @ref ProSLIC_PCMStart has been called and that we're in 
 *  @ref LF_FWD_OHT or @ref LF_REV_OHT mode for Type-1 or  @ref LF_REV_ACTIVE or @ref LF_FWD_ACTIVE
 *  if we're in Type-2 caller ID.
 *
 * @param[in] hProslic - which channel to send the data through.
 * @param[in] buffer - byte array of data to send.
 * @param[in] numBytes - number of bytes to send. MUST be less than or equal to the FIFO size
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_CheckCIDBuffer ProSLIC_FSKSetup ProSLIC_EnableCID ProSLIC_DisableCID
 */

int ProSLIC_SendCID (proslicChanType_ptr hProslic, uInt8 *buffer, uInt8 numBytes);

/** 
 * @brief Control if the start/stop bits are enabled.
 * 
 * @param[in] hProslic - which channel to adjust
 * @param[in] enable_startStop - TRUE - start/stop bits are enabled, FALSE - disabled
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 * 
 * @note: This does not replace @ref ProSLIC_FSKSetup, but is a suppliment that toggles
 * one of the registers that the preset modifies.  It is assumed that @ref ProSLIC_FSKSetup
 * was called at some point earlier in the code flow.
 */

int ProSLIC_ModifyCIDStartBits(proslicChanType_ptr hProslic, uInt8 enable_startStop);


/** @} FSK_CONTROL */

/*****************************************************************************/
/** @defgroup AUDIO_CONTROL Audio control/configuration 
 * @{
 */
/** @defgroup PCM_CONTROL PCM control 
 * This group of functions is used to configure and control the PCM bus.  It is essential that @ref ProSLIC_PCMSetup,
 * @ref ProSLIC_PCMTimeSlotSetup and @ref ProSLIC_PCMStart are called prior to any tone or FSK generation.
 *
 * See @ref PROSLIC_AUDIO code fragment on how the functions relate during initialization.
 * 
 * @{
 */

/** 
 * @brief 
 *  This configures the PCM bus with parameters such as companding and data latching timing.
 *
 * @param[in] hProslic - which channel should be configured
 * @param[in] preset - which preset to use from the constants file (see configuration tool, PCM dialog box)
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_PCMTimeSlotSetup ProSLIC_PCMStart
 */

int ProSLIC_PCMSetup (proslicChanType_ptr hProslic,int preset);

/** 
 * @brief 
 *  This configures the ProSLIC to latch and send the PCM data at a particular timeslot in terms of PCM clocks (PCLK).
 *
 *  Typically, for aLaw and uLaw, one can use the following calculation to set the rxcount and txcount parameters:
 *
 *  rxcount = txcount = (channel_number)*8;
 *
 *  For 16 bit linear, one can do the following:
 *
 *  rxcount = txcount = (channel_number)*16;
 *
 * where channel_number = which ProSLIC channel on the PCM bus.  For example, if one were to have 2 dual channel
 * ProSLIC's on the same PCM bus, this value would range from 0 to 3. 
 *
 * @param[in] hProslic - which channel should be configured
 * @param[in] rxcount -  how many clocks until reading data from the PCM bus
 * @param[in] txcount -  how many clocks until writing data to the PCM bus.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_PCMSetup ProSLIC_PCMStart
 */

int ProSLIC_PCMTimeSlotSetup (proslicChanType_ptr hProslic, uInt16 rxcount, uInt16 txcount);

/**
 * @brief
 *  This enables PCM transfer on the given ProSLIC channel.
 *
 * @param[in] hProslic - - which channel should be enabled
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_PCMSetup ProSLIC_PCMTimeSlotSetup ProSLIC_PCMStop
 */

int ProSLIC_PCMStart (proslicChanType_ptr hProslic);

/**
 * @brief
 *  This disables PCM transfer on the given ProSLIC channel. Typically, this is called for debugging
 *  purposes only.
 *
 * @param[in] hProslic - - which channel should be disabled
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_PCMSetup ProSLIC_PCMTimeSlotSetup ProSLIC_PCMStart
 */

int ProSLIC_PCMStop (proslicChanType_ptr hProslic);

/**
 * @brief 
 * Program desired loopback test mode for the given channel.
 *
 * @param[in] hProslic -  which channel should be modified 
 * @param[in] newMode - what is the desired loopback mode.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_SetLoopbackMode (proslicChanType_ptr hProslic, ProslicLoopbackModes newMode);

/**
 * @brief 
 * Program desired mute test mode for the given channel.
 *
 * @param[in] hProslic - which channel should be modified 
 * @param[in] muteEn - what is the desired mode.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_SetMuteStatus (proslicChanType_ptr hProslic, ProslicMuteModes muteEn);

/** @} PCM_CONTROL */

/*****************************************************************************/
/** @defgroup GAIN_CONTROL Gain control 
 * @{
 */

/** 
 * @brief
 *  Sets the TX audio gain (toward the network). This funcion DOES NOT actually calculate the values for the preset.  
 *  To dynamically calculate the values, you would need to call @ref ProSLIC_dbgSetTXGain .
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which preset to use (this may be from the constants file)
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note One can use this in conjunction with @ref ProSLIC_dbgSetTXGain to dynamically 
 * change the audio gain. It is important to have the presets of both routines match.
 *
 * The following code * fragment will set the TX audio gain to -5 dB:
 *
 * @code
 * ProSLIC_dbgSetTXGain(myChannel, -5, MY_IMPEDENCE,0);
 * ProSLIC_TXAudioGainSetup(myChannel,0);
 * @endcode
 *
 * @sa ProSLIC_RXAudioGainSetup ProSLIC_dbgSetTXGain ProSLIC_AudioGainSetup
 */

int ProSLIC_TXAudioGainSetup (proslicChanType_ptr hProslic,int preset);

/** 
 * @brief
 *  Configures the RX audio gain (toward the telephone). This funcion DOES NOT actually calculate the values for the preset. 
 *  To dynamically calculate the values, you would need to call @ref ProSLIC_dbgSetRXGain .
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which preset to use (this may be from the constants file)
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note One can use this in conjunction with @ref ProSLIC_dbgSetRXGain to dynamically 
 * change the audio gain. It is important to have the presets of both routines match.
 *
 * The following code * fragment will set the RX audio gain to -1 dB:
 *
 * @code
 * ProSLIC_dbgSetRXGain(myChannel, -1, MY_IMPEDENCE,0);
 * ProSLIC_RXAudioGainSetup(myChannel,0);
 * @endcode
 *
 * @sa ProSLIC_TXAudioGainSetup ProSLIC_dbgSetRXGain ProSLIC_AudioGainSetup
 */

int ProSLIC_RXAudioGainSetup (proslicChanType_ptr hProslic,int preset);

/** 
 * @brief
 *  Configures and sets the audio gains - for both RX (toward the phone) and the TX (toward the network). Unlike
 *  the @ref ProSLIC_RXAudioGainSetup and @ref ProSLIC_TXAudioGainSetup this does both the calculations and then
 *  configures the given channel in one step.  It is assumed that the preset gain array is at least 2 elements in size.
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] rxgain - what is the gain/loss of the RX transmit path in 1 dB units (negative = attenuation)
 * @param[in] txgain - what is the gain/loss of the TX transmit path in 1 dB units (negative = attenuation)
 * @param[in] preset - what is the impedance preset value
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * The following code * fragment will set the RX audio gain to -1 dB snd TX audio gain to -5 dB:
 *
 * @code
 * ProSLIC_AudioGain(myChannel, -1, -5,  MY_IMPEDENCE);
 * @endcode
 *
 * @sa ProSLIC_TXAudioGainSetup ProSLIC_dbgSetRXGain ProSLIC_dbgSetRXGain ProSLIC_dbgSetTXGain
 */

int ProSLIC_AudioGainSetup (proslicChanType_ptr hProslic,int32 rxgain,int32 txgain,int preset);

/**
 * @brief
 *  This function calculates the preset values for the RX audio (toward the telephone) - it does NOT set the 
 *  actual register values.  For that, please use @ref ProSLIC_RXAudioGainSetup .
 *
 * @param[in] pProslic - which channel to configure
 * @param[in] gain - gain to set the preset values to.
 * @param[in] impedance_preset - impedence preset in the constants file.
 * @param[in] audio_gain_preset - index to the audio gain preset to store the value.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_RXAudioGainSetup ProSLIC_AudioGainSetup ProSLIC_dbgSetTXGain
 */

int ProSLIC_dbgSetRXGain (proslicChanType *pProslic, int32 gain, int impedance_preset, int audio_gain_preset);

/**
 * @brief
 *  This function calculates the preset values for the TX audio (toward the network) - it does NOT set the 
 *  actual register values.  For that, please use @ref ProSLIC_TXAudioGainSetup .
 *
 * @param[in] pProslic - which channel to configure
 * @param[in] gain - gain to set the preset values to.
 * @param[in] impedance_preset - impedence preset in the constants file.
 * @param[in] audio_gain_preset - index to the audio gain preset to store the value.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_TXAudioGainSetup ProSLIC_AudioGainSetup ProSLIC_dbgSetRXGain
 */

int ProSLIC_dbgSetTXGain (proslicChanType *pProslic, int32 gain, int impedance_preset, int audio_gain_preset);

/** @} GAIN_CONTROL */
/** @} AUDIO_CONTROL */
/** @} PROSLIC_AUDIO */
/*****************************************************************************/
/** @defgroup PD_DETECT Pulse dial detection 
 *
 * This function group has routines used to implement a pulse dial detection
 * mechanism.  The outline of how to use these functions is as follows:
 *
 * - Initialize the data structure w/ @ref ProSLIC_InitializeDialPulseDetect
 * - When hook change is detected, call @ref ProSLIC_DialPulseDetect
 * - After calling  @ref ProSLIC_DialPulseDetect and we're onhook, call
 *   @ref ProSLIC_DialPulseDetectTimeout to see if we need to re-initialize
 *   the state machine.
 *
 *   @note This set of functions require that the elapsed timer functions 
 *   documented in @ref PROSLIC_CUSTOMER_TIMER are implemented.
 * 
 * @{
 */

/**
 * @brief
 *  Initialize pulse dial detection parameters.
 *
 * @param[in,out] pPulse - the structure that is to be initialized.
 * @param[in] offHookTime - a timer object suitable to be passed to a function of type @ref system_timeElapsed_fptr
 * @param[in] onHookTime - a timer object suitable to be passed to a function of type @ref system_timeElapsed_fptr
 *
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_InitializeDialPulseDetect(pulseDialType *pPulse,void *offHookTime,void *onHookTime);

/** 
 * @brief
 *  Implements pulse dial detection and should be called at every hook transistion.
 *
 * @param[in] pProslic - which channel had a hook transition.
 * @param[in] pPulsedialCfg - what is the criteria to determine on/off hook states.
 * @param[in,out] pPulseDialData - contians the timer information that was set in  
 *                                  @ref ProSLIC_InitializeDialPulseDetect as well as the pulse digit detected
 *
 * @retval int - 0 = no pulse digit detected, 1 = we detected a pulse digit that met the timing criteria and that in @ref pulseDialType contains the digit detected.
 */

int ProSLIC_DialPulseDetect (proslicChanType *pProslic, pulseDial_Cfg *pPulsedialCfg, pulseDialType *pPulseDialData);

/**
 * @brief
 *  This function implements pulse dial detection and should be called when a 
 *  pulse dial timeout (e.g. max offhook or onhook time exceeded) is suspected.
 *  
 * @param[in] pProslic - which channel had a hook transition.
 * @param[in] pPulsedialCfg - what is the criteria to determine on/off hook states.
 * @param[in,out] pPulseDialData - contians the timer information that was set in  
 *                                  @ref ProSLIC_InitializeDialPulseDetect as well as the pulse digit detected
 * @retval @ref ON_HOOK_TIMEOUT - did not detect a digit, 0 = no digit detected, else the digit detected.
 */

int ProSLIC_DialPulseDetectTimeout (proslicChanType *pProslic, pulseDial_Cfg *pPulsedialCfg, pulseDialType *pPulseDialData);

/** @} PD_DETECT */

/*****************************************************************************/
/**  @addtogroup PROSLIC_AUDIO
 * @{
 * @defgroup PROSLIC_DTMF_DECODE DTMF Decode
 * This section covers DTMF decoding. 
 *
 * @note Not all chipsets support this capability.  Please review your chipset
 * documentation to confirm this capability is supported.
 * @{
 */
/**
 * @brief
 *  Configure the DTMF Decoder - assumes PCM setup procedure has been done.
 *
 *  @warning Not all ProSLIC chipsets have a DTMF decoder.  Please review your chipset to make
 *  sure this capability exists.
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - which DTMF preset to use.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be compiled out with @ref DISABLE_DTMF_SETUP being defined.
 */

int ProSLIC_DTMFDecodeSetup (proslicChanType_ptr hProslic,int preset);

/**
 * @brief 
 *  Read/Decode DTMF digits.  The "raw" hexcode is returned in this function and would require
 *  further processing.  For example, on the Si3217x chipset, the following mapping exists:
 *
 *  1-9 = no remapping required
 *  0   = 0xA
 *  *   = 0xB
 *  #   = 0xC
 *  A-C = 0xD-0xF
 *  D   = 0
 *
 * @note This function is only valid after @ref IRQ_DTMF occurred and should be called shortly 
 * thereafter.
 *
 * @warning Not all ProSLIC chipsets have a DTMF decoder.  Please review your chipset to make
 * sure this capability exists.
 *
 * @param[in] hProslic - which channel is to be decoded.
 * @param[out] pDigit - "raw" DTMF value (see comments in description)
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 *
 * @sa ProSLIC_DTMFDecodeSetup 
 */

int ProSLIC_DTMFReadDigit (proslicChanType_ptr hProslic,uInt8 *pDigit);

/** @} PROSLIC_DTMF_DECODE */
/** @} PROSLIC_AUDIO */

/*****************************************************************************/
/** @defgroup PROSLIC_POWER_CONVERTER Power Converter control 
 * @{
 */
/**
* @brief 
* Powers all DC/DC converters sequentially with delay to minimize peak power draw on VDC.
* @param[in] hProslic - which channel to change state.
* @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
*
* @sa ProSLIC_PowerDownConverter
*
*/

int ProSLIC_PowerUpConverter(proslicChanType_ptr hProslic);

/**
* @brief 
*  Safely powerdown dcdc converter after ensuring linefeed
*  is in the open state.  Test powerdown by setting error
*  flag if detected voltage does no fall below 5v.
*
* @param[in] hProslic - which channel to change state.
* @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
*
* @sa ProSLIC_PowerUpConverter
*
*/

int ProSLIC_PowerDownConverter(proslicChanType_ptr hProslic);

/** @} PROSLIC_POWER_CONVERTER */
/*****************************************************************************/
/** @defgroup PROSLIC_LB_CALIBRATION LB Calibration
 * @{
 */

/**
 * @brief
 *  Run canned longitudinal balance calibration.  
 *  
 * @param[in] pProslic - start channel to start from for calibration.
 * @param[in] size - number of channels to calibrate
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @deprecated 
 * Use the @ref ProSLIC_Init function to perform all calibrations except Longitudinal Balance (LB).
 * Use the @ref ProSLIC_LBCal function to perform LB calibration.
 *
*  @sa ProSLIC_GetLBCalResult ProSLIC_LoadPreviousLBCal ProSLIC_LoadPreviousLBCalPacked ProSLIC_LBCal ProSLIC_GetLBCalResultPacked
 */

int ProSLIC_LBCal (proslicChanType_ptr *pProslic, int size);

/**
 * @brief
 *  This function returns the coefficient results of the last LB calibration.
 *
 * @param[in] pProslic - which channel to retrieve the values from.
 * @param[out] result1 - results read from the last calibration
 * @param[out] result2 - results read from the last calibration
 * @param[out] result3 - results read from the last calibration
 * @param[out] result4 - results read from the last calibration
*  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
*
*  @sa ProSLIC_LBCal ProSLIC_LoadPreviousLBCal ProSLIC_LoadPreviousLBCalPacked ProSLIC_LBCal ProSLIC_GetLBCalResultPacked
*/

int ProSLIC_GetLBCalResult (proslicChanType *pProslic,int32 *result1,int32 *result2,int32 *result3,int32 *result4);

/**
 * @brief
 *  This function loads previously stored LB calibration results to the appropriate ProSLIC
 *  RAM locations.
 *
 * @param[in] pProslic - which channel to program the values
 * @param[in] result1 - values to be written
 * @param[in] result2 - values to be written
 * @param[in] result3 - values to be written
 * @param[in] result4 - values to be written
*  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
*
*  @sa ProSLIC_LBCal ProSLIC_LoadPreviousLBCalPacked ProSLIC_LBCal ProSLIC_GetLBCalResult ProSLIC_GetLBCalResultPacked
*/

int ProSLIC_LoadPreviousLBCal (proslicChanType *pProslic,int32 result1,int32 result2,int32 result3,int32 result4);

/**
 * @brief
 *  This function returns the results of the last LB calibration packed into single int32.
 *
 * @param[in] pProslic - which channel to retrieve the values from.
 * @param[out] result - results - where to store the value
*  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
*
*  @sa ProSLIC_LBCal ProSLIC_LoadPreviousLBCal ProSLIC_LoadPreviousLBCalPacked ProSLIC_LBCal 
*/

int ProSLIC_GetLBCalResultPacked (proslicChanType *pProslic,int32 *result);

/**
 * @brief
 *  This function loads previously stored LB calibration results that are in the packed format.
 *
 * @param[in] pProslic - which channel to retrieve the values from.
 * @param[in] result - results read from @ref ProSLIC_GetLBCalResultPacked
*  @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
*
*  @sa ProSLIC_LBCal ProSLIC_LoadPreviousLBCal ProSLIC_LBCal ProSLIC_GetLBCalResultPacked
*
*/

int ProSLIC_LoadPreviousLBCalPacked (proslicChanType *pProslic,int32 *result);

/** @} PROSLIC_LB_CALIBRATION */


/*****************************************************************************/
/** @addtogroup DIAGNOSTICS 
 * @{
 */

/**
 * @brief
 *  This function can be used to verify that the SPI interface is functioning 
 *  properly by performing a series of readback tests.  This test DOES modify 
 *  certain registers, so a reinitialization will be required.  This test is 
 *  recommended only for development use.
 *
 * @param[in] pProslic - This should point to the channel that is to be verified.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error amd will typically return back
 * @ref RC_SPI_FAIL if a SPI failure occured.
 */

int ProSLIC_VerifyControlInterface (proslicChanType_ptr pProslic);

/** @addtogroup PSTN_CHECK PSTN Check
 * @{
 */

/**
 * @brief
 * Allocates memory for a PSTN check object. One channel object is needed per
 * ProSLIC channel.
 *
 *  @param[in,out] pstnCheckObj - pointer to the object that is to be initialized.
 *
 *  @retval 0 = OK
 */

int ProSLIC_CreatePSTNCheckObj(proslicPSTNCheckObjType_ptr *pstnCheckObj);

/** 
 * @brief 
 * Allocates memory for a differential PSTN check object. One channel object is needed per
 * ProSLIC channel.
 * 
 *  @param[in,out] pstnCheckObj - pointer to the object that is to be initialized.
 *
 *  @retval 0 = OK
 */

int ProSLIC_CreateDiffPSTNCheckObj(proslicDiffPSTNCheckObjType_ptr *pstnCheckObj);

/** 
 * @brief 
 * Destroys a PSTN check object and deallocates memory.
 *
 * @param[in] pstnCheckObj - object to deallocate.
 *
 * @retval 0 = OK
 */

int ProSLIC_DestroyPSTNCheckObj(proslicPSTNCheckObjType_ptr *pstnCheckObj);

/**
 * @brief
 *  Destroys a differential PSTN check object and deallocates memory.
 *
 * @param[in] pstnCheckObj - object to deallocate.
 *
 * @retval 0 = OK
 */

int ProSLIC_DestroyDiffPSTNCheckObj(proslicDiffPSTNCheckObjType_ptr *pstnCheckObj);

/**
 * @brief
 *  Initialize pstnCheckObj structure memebers
 *
 * @param[in] pstnCheckObj - which object to initialize
 * @param[in] avgThresh - Average current threshold that indicates a PSTN is present (uA).
 * @param[in] singleThresh - Single current threshold that indicates a PSTN is present (uA).
 * @param[in] samples - number of samples to collect
 * @retval 0 = OK
 */

int ProSLIC_InitPSTNCheckObj(proslicPSTNCheckObjType_ptr pstnCheckObj, int32 avgThresh, int32 singleThresh, uInt8 samples);

/**
 * @brief 
 *  This function initializes a differential PSTN detection object.
 *
 *  @param[in,out] pstnDiffCheckObj - object to be initialized
 *  @param[in] preset1 - DC Feed preset to be used for first loop I/V measurement
 *  @param[in] preset2 - DC Feed preset to be used for second loop I/V measurement
 *  @param[in] entry_preset - restore_preset DC Feed preset that is restored after PSTN check is complete.
 *  @param[in] femf_enable - Flag to enable OPEN state hazardous voltage measurement (0 = disabled, 1 = enabled)
 *  @retval 0 = OK
 */

int ProSLIC_InitDiffPSTNCheckObj(proslicDiffPSTNCheckObjType_ptr pstnDiffCheckObj, int preset1, int preset2, int entry_preset, int femf_enable);

/**
 * @brief 
 * This function monitors longitudinal current (average and single sample) to quickly identify
 * the presence of a live PSTN line. Sufficient polling needs to occur in order to quickly determine
 * if a PSTN line is preset or not.
 *  
 *  @param[in] pProslic - which channel to run this test on. 
 *  @param[in] pPSTNCheck - the initialized data structure that contains the intermediate results of this test.
 *  @retval 0 = no PSTN detected/thresholds have not been exceeded, 1 = PSTN detected, state machine reset.
 *
 *  @note 
 *   If wanting to restart the test, one will need to call @ref ProSLIC_InitPSTNCheckObj again. However, if the 
 *   number of samples exceeds the buffer then the function will "wrap".
 */

int ProSLIC_PSTNCheck(proslicChanType *pProslic, proslicPSTNCheckObjType *pPSTNCheck);

/**
 * @brief
 *  This function monitors for a foreign voltage (if enabled) and measures the differential I/V
 *  characteristics of the loop at 2 unique settings to detect a foreign PSTN.  It is assumed that polling will
 *  occur at the configured value found in @ref PSTN_DET_POLL_RATE.
 *
 *  @param[in] pProslic - channel to be monitored
 *  @param[in,out] pPSTNCheck - pointer to an initialzed structure that is used by the function to
 *  store state information.
 *  @retval @ref RC_NONE - test is in progress, @ref RC_COMPLETE_NO_ERR - test complete, no errors, @ref RC_PSTN_OPEN_FEMF - detected foreign voltage, RC_CHANNEL_TYPE_ERR = a non-ProSLIC device was called to perform this function
 */ 
int ProSLIC_DiffPSTNCheck(proslicChanType *pProslic, proslicDiffPSTNCheckObjType *pPSTNCheck);

/** @} PSTN_CHECK */
/** @} DIAGNOSTICS*/

/*****************************************************************************/
/** @defgroup PROSLIC_DCFEED DC Feed Setup and control 
 * @{
 */

/**
 * @brief
 *  Configures the DC feed from a preset.
 *
 * @param[in] hProslic - which channel to configure
 * @param[in] preset - the preset to use
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @note This function can be disabled by @ref DISABLE_DCFEED_SETUP
 */

int ProSLIC_DCFeedSetup (proslicChanType_ptr hProslic,int preset);

int ProSLIC_DCFeedSetupCfg (proslicChanType_ptr hProslic, ProSLIC_DCfeed_Cfg *cfg, int preset);

/**
 * @brief
 *  This function allows one to adjust the DC open circuit voltage level dynamically. Boundary checking is done. 
 *
 * @note This function does NOT modify the register sets needed, it calculates the correct values and stores
 * them in the correct preset.  Use @ref ProSLIC_DCFeedSetup to program the device with the new values.
 *
 * @param[in] pProslic - which channel to configure
 * @param[in] v_vlim_val - absolute voltage level
 * @param[in] preset - DC Feed preset to be modified.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_dbgSetDCFeedIloop ProSLIC_DCFeedSetup
 */

int ProSLIC_dbgSetDCFeedVopen (proslicChanType *pProslic, uInt32 v_vlim_val, int32 preset);

/**
 * @brief
 *  This function allows one to adjust the loop current level dynamically. Boundary checking is done.
 *
 * @note This function does NOT modify the register sets needed, it calculates the correct values and stores
 * them in the correct preset.  Use @ref ProSLIC_DCFeedSetup to program the device with the new values.
 *
 * @param[in] pProslic - which channel to configure
 * @param[in] i_ilim_val - loop current level
 * @param[in] preset - DC Feed preset to be modified.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 * @sa ProSLIC_dbgSetDCFeedVopen ProSLIC_DCFeedSetup
 */

int ProSLIC_dbgSetDCFeedIloop (proslicChanType *pProslic, uInt32 i_ilim_val, int32 preset);

/**
 * @brief
 *  This function allows one to enable/disable power savings mode found on some of the chipsets.  This allows one
 *  to change the default value set in the GUI config tool.
 *
 * @param[in] pProslic - which channel to configure
 * @param[in] pwrsave -  power savings mode enabled or disabled - value expected: @ref PWRSAVE_DISABLE or @ref PWRSAVE_ENABLE
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 *
 */

int ProSLIC_SetPowersaveMode(proslicChanType *pProslic, int pwrsave);

/** @} PROSLIC_DCFEED */

/*****************************************************************************/
/** @defgroup MISC MISC. routines 
 * @{
 */

/**
 * @brief
 *  Implements message waiting indicator
 *
 * @details
 *  Message waiting (neon flashing) requires modifications to vbath_expect and slope_vlim.
 *  The old values are restored to turn off the lamp. The function assumes the channels
 *  are all configured the same. During off-hook event lamp must be disabled manually.
 *
 * @param[in] hProslic - channel to modify
 * @param[in] lampOn - 0 = lamp is off, 1 = lamp is on.
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_MWI (proslicChanType_ptr hProslic,uInt8 lampOn);

/**
 * @brief 
 *  This function initiates PLL free run mode.
 *
 * @param[in] hProslic - which channel to modify
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_PLLFreeRunStart (proslicChanType_ptr hProslic);

/**
 * @brief 
 *  This function terminates PLL free run mode.
 *
 * @param[in] hProslic - which channel to modify
 * @retval int - error from @ref errorCodeType  @ref RC_NONE indicates no error.
 */

int ProSLIC_PLLFreeRunStop (proslicChanType_ptr hProslic);

/**
 * @brief
 *  This function returns back a string with the current version of the 
 *  ProSLIC API.
 *
 * @details
 *  The string is in the following format MM.mm.vv[.rcX] format, where
 *  MM is the major number, mm is the minor number and vv is the sub-minor number.
 *  If this is a release candidate, a .RCx is tacked on - such as RC1 for release
 *  candidate 1.
 *
 *  @retval char * - returns back a constant string.
 */
char *ProSLIC_Version(void);

/** @} MISC */
/** @} */
#endif /*end ifdef PROSLIC_H*/