#ifndef __CPHIDGETRFID
#define __CPHIDGETRFID
#include "cphidget.h"

/** \defgroup phidrfid Phidget RFID 
 * \ingroup phidgets
 * These calls are specific to the Phidget RFID object. See your device's User Guide for more specific API details, technical information, and revision details. The User Guide, along with other resources, can be found on the product page for your device.
 * @{
 */

DPHANDLE(RFID)
CHDRSTANDARD(RFID)

/**
 * Gets the number of outputs supported by this board.
 * @param phid An attached phidget rfid handle.
 * @param count The output count.
 */
CHDRGET(RFID,OutputCount,int *count)
/**
 * Gets the state of an output.
 * @param phid An attached phidget rfid handle.
 * @param index The output index.
 * @param outputState The output state. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRGETINDEX(RFID,OutputState,int *outputState)
/**
 * Sets the state of an output.
 * @param phid An attached phidget rfid handle.
 * @param index The output index.
 * @param outputState The output state. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRSETINDEX(RFID,OutputState,int outputState)
/**
 * Set an output change handler. This is called when an output changes.
 * @param phid An attached phidget rfid handle.
 * @param fptr Callback function pointer.
 * @param userPtr A pointer for use by the user - this value is passed back into the callback function.
 */
CHDREVENTINDEX(RFID,OutputChange,int outputState)

/**
 * Gets the state of the antenna.
 * @param phid An attached phidget rfid handle.
 * @param antennaState The antenna state. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRGET(RFID,AntennaOn,int *antennaState)
/**
 * Sets the state of the antenna. Note that the antenna must be enabled before tags will be read.
 * @param phid An attached phidget rfid handle.
 * @param antennaState The antenna state. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRSET(RFID,AntennaOn,int antennaState)
/**
 * Gets the state of the onboard LED.
 * @param phid An attached phidget rfid handle.
 * @param LEDState The LED state. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRGET(RFID,LEDOn,int *LEDState)
/**
 * Sets the state of the onboard LED.
 * @param phid An attached phidget rfid handle.
 * @param LEDState The LED state. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRSET(RFID,LEDOn,int LEDState)

/**
 * Gets the last tag read by the reader. This tag may or may not still be on the reader.
 * @param phid An attached phidget rfid handle.
 * @param tag The tag. This must be an unsigned char array of size 5.
 */
CHDRGET(RFID,LastTag,unsigned char *tag)
/**
 * Gets the tag present status. This is whether or not a tag is being read by the reader.
 * @param phid An attached phidget rfid handle.
 * @param status The tag status. Possible values are \ref PTRUE and \ref PFALSE.
 */
CHDRGET(RFID,TagStatus,int *status)
/**
 * Set a tag handler. This is called when a tag is first detected by the reader.
 * @param phid An attached phidget rfid handle.
 * @param fptr Callback function pointer.
 * @param userPtr A pointer for use by the user - this value is passed back into the callback function.
 */
CHDREVENT(RFID,Tag,unsigned char *tag)
/**
 * Set a tag lost handler. This is called when a tag is no longer detected by the reader.
 * @param phid An attached phidget rfid handle.
 * @param fptr Callback function pointer.
 * @param userPtr A pointer for use by the user - this value is passed back into the callback function.
 */
CHDREVENT(RFID,TagLost,unsigned char *tag)

#ifndef REMOVE_DEPRECATED
DEP_CHDRGET("Deprecated - use CPhidgetRFID_getOutputCount",RFID,NumOutputs,int *)
#endif

//These are for a prototype device - hide until it's released
#if !defined(EXTERNALPROTO) || defined(DEBUG)

typedef enum {
	PHIDGET_RFID_ENCODING_MANCHESTER = 1,
	PHIDGET_RFID_ENCODING_BIPHASE,
	PHIDGET_RFID_ENCODING_AC
} CPhidgetRFID_Encoding;

typedef enum {
	PHIDGET_RFID_TAG_ISO11784 = 1,
	PHIDGET_RFID_TAG_EM4102,
	PHIDGET_RFID_TAG_HITAGS
} CPhidgetRFID_TagType;

typedef struct _CPhidgetRFID_TagInfo
{
	int bitRate;
	CPhidgetRFID_TagType tagType;
	CPhidgetRFID_Encoding encoding;
} CPhidgetRFID_TagInfo, *CPhidgetRFID_TagInfoHandle;

typedef struct _CPhidgetRFID_TagOptions
{
	unsigned char writable;
	unsigned char encrypted;
	int memSize;
} CPhidgetRFID_TagOptions, *CPhidgetRFID_TagOptionsHandle;


CHDRSET(RFID,PollingOn,int pollingState)

PHIDGET21_API int CCONV CPhidgetRFID_writeRaw(CPhidgetRFIDHandle phid, unsigned char *data, int bitlength, int pregap, int space, int postgap, int zero, int one);
PHIDGET21_API int CCONV CPhidgetRFID_getRawData(CPhidgetRFIDHandle phid, int *data, int *dataLength);

PHIDGET21_API int CCONV CPhidgetRFID_getTagOptions(CPhidgetRFIDHandle phid, char *tagString, CPhidgetRFID_TagOptionsHandle options);
PHIDGET21_API int CCONV CPhidgetRFID_read(CPhidgetRFIDHandle phid, char *tagString, unsigned char *data, int *dataLength, char *password);
PHIDGET21_API int CCONV CPhidgetRFID_write(CPhidgetRFIDHandle phid, char *tagString, unsigned char *data, int dataLength, int offset, char *password);

CHDREVENT(RFID, RawData, int *data, int dataLength)
CHDREVENT(RFID, ManchesterData, unsigned char *data, int dataLength)
CHDREVENT(RFID, TagAdvanced, char *tagString, CPhidgetRFID_TagInfoHandle tagInfo)
CHDREVENT(RFID, TagLostAdvanced, char *tagString, CPhidgetRFID_TagInfoHandle tagInfo)

#endif

#ifndef EXTERNALPROTO

#define RFID_PACKET_TAG 0
#define RFID_PACKET_OUTPUT_ECHO 1

#define RFID_LED_FLAG 0x04
#define RFID_ANTENNA_FLAG 0x08

//RFID Advanced Constants
#define RFID_WRITE_DATA_OUT_PACKET	0x00
#define RFID_CONTROL_OUT_PACKET		0x40

#define RFID_READ_DATA_IN_PACKET	0x00
#define RFID_ECHO_IN_PACKET			0x40

//4097 constants
#define RFID_4097_AmpDemod		0x00	//Amplitude demodulation
#define RFID_4097_PhaseDemod	0x01	//Phase demodulation

#define RFID_4097_PowerDown		0x00
#define RFID_4097_Active		0x02

#define RFID_4097_DataOut		0x00	//DATA_OUT is data from the rfid card
#define RFID_4097_ClkOut		0x04	//DATA_OUT is the internal clock/32

#define	RFID_4097_IntPLL		0x00
#define RFID_4097_ExtClk		0x08

#define RFID_4097_FastStart		0x10

#define RFID_4097_Gain960		0x40
#define RFID_4097_Gain480		0x00
#define RFID_4097_Gain240		0x60
#define RFID_4097_Gain120		0x20

#define RFID_4097_TestMode		0x80

#define RFID_MAX_DATA_PER_PACKET	62

#define RFID_DATA_ARRAY_SIZE		2048
#define RFID_DATA_ARRAY_MASK		0x7ff

#define RFID_MAXOUTPUTS 2

typedef enum _CPhidgetRFID_Hitag_State
{
	RFID_HITAG_STATE_NONE = 0,
	RFID_HITAG_STATE_UID_REQUEST,
	RFID_HITAG_STATE_AC_SEQUENCE,
	RFID_HITAG_STATE_SELECT,
	RFID_HITAG_STATE_READ,
	RFID_HITAG_STATE_WRITE

} CPhidgetRFID_Hitag_State;

typedef struct _CPhidgetRFID_Tag
{
	char tagString[256];
	CPhidgetRFID_TagInfo tagInfo;
	TIME	lastTagTime;
	unsigned char tagEventPending;
	unsigned char tagOptionsValid;
	CPhidgetRFID_TagOptions tagOptions;
	unsigned char tagDataValid;
	unsigned char tagData[256];
} CPhidgetRFID_Tag, *CPhidgetRFID_TagHandle;

typedef struct _CPhidgetRFID_TagList
{
	struct _CPhidgetRFID_TagList *next;
	CPhidgetRFID_TagHandle tag;
} CPhidgetRFID_TagList, *CPhidgetRFID_TagListHandle;

typedef struct _CPhidgetRFID_HitagAC
{
	unsigned char uid[4];
	int colPos;
} CPhidgetRFID_HitagAC, *CPhidgetRFID_HitagACHandle;

typedef struct _CPhidgetRFID_HitagACList
{
	struct _CPhidgetRFID_HitagACList *next;
	CPhidgetRFID_HitagACHandle hitagAC;
} CPhidgetRFID_HitagACList, *CPhidgetRFID_HitagACListHandle;

struct _CPhidgetRFID {
	CPhidget phid;

	int (CCONV *fptrOutputChange)(CPhidgetRFIDHandle, void *, int, int);
	int (CCONV *fptrTag)(CPhidgetRFIDHandle, void *, unsigned char *);
	int (CCONV *fptrTagLost)(CPhidgetRFIDHandle, void *, unsigned char *);
	int (CCONV *fptrRawData)(CPhidgetRFIDHandle, void *, int *, int);
	int (CCONV *fptrManchesterData)(CPhidgetRFIDHandle, void *, unsigned char *, int);
	int (CCONV *fptrTagAdvanced)(CPhidgetRFIDHandle, void *, char *, CPhidgetRFID_TagInfoHandle);
	int (CCONV *fptrTagLostAdvanced)(CPhidgetRFIDHandle, void *, char *, CPhidgetRFID_TagInfoHandle);

	void *fptrOutputChangeptr;
	void *fptrTagptr;
	void *fptrTagLostptr;
	void *fptrRawDataptr;
	void *fptrManchesterDataptr;
	void *fptrTagAdvancedptr;
	void *fptrTagLostAdvancedptr;

	// Values returned from the device
	unsigned char outputEchoState[RFID_MAXOUTPUTS];
	unsigned char antennaEchoState;
	unsigned char ledEchoState;
	
	unsigned char outputState[RFID_MAXOUTPUTS];
	unsigned char antennaState;
	unsigned char ledState;

	unsigned char lastTag[5];
	unsigned char lastTagValid;
	TIME	lastTagTime;
	unsigned char tagPresent;
	//unsigned char tagEvent;
	unsigned char pendingTag[5];
	unsigned char tagEventPending;

	EVENT tagAvailableEvent;

	void *respData;
	int respStatus;
	EVENT respEvent;
	EVENT respEvent2;

	//Advanced Tag Events
	int tagAdvancedCount;
	CThread_mutex_t tagthreadlock; /* protects tag thread access to things */
	CPhidgetRFID_TagListHandle tagAdvancedList;
	CPhidgetRFID_Tag lastTagAdvanced;
	TIME	lastDataTime;
	TIME	hitagReqTime;

	unsigned char ACCodingOK;

	unsigned char fullStateEcho;
	
	CThread tagTimerThread;

	//RFID Advanced stuff
	int spaceClocks, pregapClocks, postgapClocks, oneClocks, zeroClocks;
	int spaceClocksEcho, pregapClocksEcho, postgapClocksEcho, oneClocksEcho, zeroClocksEcho;
	int _4097Conf, _4097ConfEcho;
	int frequencyEcho;

	int dataBuffer[RFID_DATA_ARRAY_SIZE];
	int dataBufferNormalized[RFID_DATA_ARRAY_SIZE];
	unsigned int dataReadPtr, dataWritePtr, dataReadACPtr;
	unsigned int userReadPtr; //for the getRawData function
	
	unsigned char manBuffer[RFID_DATA_ARRAY_SIZE];
	int manReadPtr, manWritePtr;

	unsigned char biphaseBuffer[RFID_DATA_ARRAY_SIZE];
	int biphaseReadPtr, biphaseWritePtr;

	unsigned char manLockedIn;
	unsigned char manShortChange;

	unsigned char biphaseLockedIn;
	unsigned char biphaseShortChange;

	int one, two;
	int oneCount, twoCount;

	CPhidgetRFID_Hitag_State hitagState;
	int hitagOffset;

	//Hitag AC queue
	CPhidgetRFID_HitagACListHandle hitagACList;
	CPhidgetRFID_HitagAC lastHitagAC;

	unsigned char atGap, polling;

	unsigned char outputPacket[MAX_OUT_PACKET_SIZE];
	unsigned int outputPacketLen;

	int manEventReadPtr;

} typedef CPhidgetRFIDInfo;
#endif

/** @} */

#endif