CDCDSerialPort.h

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#ifndef _CDCDSERIALPORT_H_
#define _CDCDSERIALPORT_H_

/*------------------------------------------------------------------------------
 *         Headers
 *------------------------------------------------------------------------------*/
 
/* These headers were introduced in C99
   by working group ISO/IEC JTC1/SC22/WG14. */
#include <stdint.h>

#include <USBRequests.h>
#include <CDCRequests.h>
#include <CDCNotifications.h>
#include "USBD.h"
#include <USBDDriver.h>
/*------------------------------------------------------------------------------
 *         Defines
 *------------------------------------------------------------------------------*/

#define CDCDSerialPort_INTERRUPT_MAXPACKETSIZE          8

#define CDCDSerialPort_INTERRUPT_INTERVAL_HS            8

#define CDCDSerialPort_INTERRUPT_INTERVAL_FS            16

#define CDCDSerialPort_BULK_MAXPACKETSIZE_HS            512

#define CDCDSerialPort_BULK_MAXPACKETSIZE_FS            64

#define CDCDSerialPortEvent_SETCONTROLLINESTATE         0

#define CDCDSerialPortEvent_SETLINECODING               1

/*------------------------------------------------------------------------------
 *         Types
 *------------------------------------------------------------------------------*/

typedef uint32_t (*CDCDSerialPortEventHandler)(uint32_t dwEvent,
                                               uint32_t dwParam,
                                               void * pArguments);

typedef struct _CDCDSerialPort {
    USBDDriver *pUsbd;
    CDCDSerialPortEventHandler fEventHandler;
    void *pEventArg;
    TransferCallback fTransCLK;
    void *pTansArg;
    uint8_t bInterfaceNdx;
    uint8_t bNumInterface;
    uint8_t bIntInPIPE;
    uint8_t bBulkInPIPE;
    uint8_t bBulkOutPIPE;

    uint8_t        bControlLineState;
    uint16_t       wSerialState;
    CDCLineCoding  lineCoding;

    uint8_t  bReserved;
} CDCDSerialPort;

/*------------------------------------------------------------------------------
 *         Functions
 *------------------------------------------------------------------------------*/

extern void CDCDSerialPort_Initialize(CDCDSerialPort *pCdcd,
                                      USBDDriver *pUsbd,
                                      CDCDSerialPortEventHandler fCallback,
                                      void *pArg,
                                      uint8_t firstInterface,
                                      uint8_t numInterface);

extern USBGenericDescriptor * CDCDSerialPort_ParseInterfaces(
    CDCDSerialPort * pCdcd,
    USBGenericDescriptor * pDescriptors, uint32_t dwLength);

extern uint32_t CDCDSerialPort_RequestHandler(
    CDCDSerialPort *pCdcd,
    const USBGenericRequest *pRequest);

extern uint32_t CDCDSerialPort_Write(
    CDCDSerialPort *pCdcd,
    void *pData, uint32_t dwSize,
    TransferCallback fCallback, void* pArg);

extern uint32_t CDCDSerialPort_Read(
    const CDCDSerialPort *pCdcd,
    void *pData, uint32_t dwSize,
    TransferCallback fCallback, void* pArg);

extern uint16_t CDCDSerialPort_GetSerialState(
    const CDCDSerialPort *pCdcd);

extern void CDCDSerialPort_SetSerialState(
    CDCDSerialPort *pCdcd,
    uint16_t wSerialState);

extern uint8_t CDCDSerialPort_GetControlLineState(
    const CDCDSerialPort * pCdcd);

extern void CDCDSerialPort_GetLineCoding(
    const CDCDSerialPort * pCdcd,
    CDCLineCoding * pLineCoding);

#endif /* #ifndef _CDCDSERIALPORT_H_ */