/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support
 * ----------------------------------------------------------------------------
 * Copyright (c) 2008, Atmel Corporation
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 * this list of conditions and the disclaimer below.
 *
 * Atmel's name may not be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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 */
/*
 * $Id: CDCDSerialDriver.h 23837 2010-10-13 13:45:05Z mahendran.p $
 */

/**
 * \file
 *
 * \section Purpose
 *
 * Definition of a class for implementing a USB device CDC serial driver.
 *
 * \section Usage
 *
 * -# Re-implement the USBDCallbacks_RequestReceived method to pass
 *    received requests to CDCDSerialDriver_RequestHandler. *This is
 *    automatically done unless the NOAUTOCALLBACK symbol is defined*.
 * -# Initialize the CDC serial and USB drivers using
 *    CDCDSerialDriver_Initialize.
 * -# Logically connect the device to the host using USBD_Connect.
 * -# Send serial data to the USB host using CDCDSerialDriver_Write.
 * -# Receive serial data from the USB host using CDCDSerialDriver_Read.
 */

#ifndef CDCDSERIALDRIVER_H
#define CDCDSERIALDRIVER_H

/** \addtogroup usbd_cdc
 *@{
 */

/*------------------------------------------------------------------------------
 *         Headers
 *------------------------------------------------------------------------------*/

#include <usb/common/core/USBGenericRequest.h>
#include <usb/device/core/USBD.h>

/*------------------------------------------------------------------------------
 *         Definitions
 *------------------------------------------------------------------------------*/

/** \addtogroup usbd_cdc_serial_port_states CDC Serial Port States
 *      @{
 * This page lists the bit map for CDC Serial Port States.
 *
 * \section BitMaps
 * - CDCDSerialDriver_STATE_RXDRIVER
 * - CDCDSerialDriver_STATE_TXCARRIER
 * - CDCDSerialDriver_STATE_BREAK
 * - CDCDSerialDriver_STATE_RINGSIGNAL
 * - CDCDSerialDriver_STATE_FRAMING
 * - CDCDSerialDriver_STATE_PARITY
 * - CDCDSerialDriver_STATE_OVERRUN
 */

/** Indicates the receiver carrier signal is present */
#define CDCDSerialDriver_STATE_RXDRIVER         (1 << 0)
/** Indicates the transmission carrier signal is present */
#define CDCDSerialDriver_STATE_TXCARRIER        (1 << 1)
/** Indicates a break has been detected */
#define CDCDSerialDriver_STATE_BREAK            (1 << 2)
/** Indicates a ring signal has been detected */
#define CDCDSerialDriver_STATE_RINGSIGNAL       (1 << 3)
/** Indicates a framing error has occured */
#define CDCDSerialDriver_STATE_FRAMING          (1 << 4)
/** Indicates a parity error has occured */
#define CDCDSerialDriver_STATE_PARITY           (1 << 5)
/** Indicates a data overrun error has occured */
#define CDCDSerialDriver_STATE_OVERRUN          (1 << 6)
/**      @}*/

/*------------------------------------------------------------------------------
 *      Global driver variable
 *------------------------------------------------------------------------------*/

//static CDCDSerialDriver cdcdSerialDriver;

/*------------------------------------------------------------------------------
 *      Exported functions
 *------------------------------------------------------------------------------*/

extern void CDCDSerialDriver_Initialize();

extern void CDCDSerialDriver_RequestHandler(const USBGenericRequest *request);

extern unsigned char CDCDSerialDriver_Write(
    void *data,
    unsigned int size,
    TransferCallback callback,
    void *argument);

extern unsigned char CDCDSerialDriver_Read(
    void *data,
    unsigned int size,
    TransferCallback callback,
    void *argument);

extern unsigned short CDCDSerialDriver_GetSerialState();

extern void CDCDSerialDriver_SetSerialState(unsigned short serialState);

/**@}*/

#endif /*#ifndef CDCSERIALDRIVER_H*/

