/* ----------------------------------------------------------------------------
 *         ATMEL Microcontroller Software Support
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 * Copyright (c) 2008, Atmel Corporation
 *
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 * modification, are permitted provided that the following conditions are met:
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 * this list of conditions and the disclaimer below.
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/*
 * $Id: CDCLineCoding.h 23837 2010-10-13 13:45:05Z mahendran.p $
 */

/**
 \unit

 !!!Purpose

 Line coding structure used for by the CDC GetLineCoding and SetLineCoding
 requests.

 !!!Usage

 -# Initialize a CDCLineCoding instance using CDCLineCoding_Initialize.
 -# Send a CDCLineCoding object to the host in response to a GetLineCoding
    request.
 -# Receive a CDCLineCoding object from the host after a SetLineCoding
    request.
*/

#ifndef CDCLINECODING_H
#define CDCLINECODING_H
/** \addtogroup usb_cdc
 *@{
 */

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

/** \addtogroup usb_cdc_stop USB CDC LineCoding StopBits
 *  @{
 * This section lists Stop Bits for CDC Line Coding.
 * - \ref CDCLineCoding_ONESTOPBIT
 * - \ref CDCLineCoding_ONE5STOPBIT
 * - \ref CDCLineCoding_TWOSTOPBITS
 */
/** The transmission protocol uses one stop bit. */
#define CDCLineCoding_ONESTOPBIT            0
/** The transmission protocol uses 1.5 stop bit. */
#define CDCLineCoding_ONE5STOPBIT           1
/** The transmissin protocol uses two stop bits. */
#define CDCLineCoding_TWOSTOPBITS           2
/** @}*/

/** \addtogroup usb_cdc_parity USB CDC LineCoding ParityCheckings
 *  @{
 * This section lists Parity checkings for CDC Line Coding.
 * - \ref CDCLineCoding_NOPARITY
 * - \ref CDCLineCoding_ODDPARITY
 * - \ref CDCLineCoding_EVENPARITY
 * - \ref CDCLineCoding_MARKPARITY
 * - \ref CDCLineCoding_SPACEPARITY
 */
/** No parity checking. */
#define CDCLineCoding_NOPARITY              0
/** Odd parity checking. */
#define CDCLineCoding_ODDPARITY             1
/** Even parity checking. */
#define CDCLineCoding_EVENPARITY            2
/** Mark parity checking. */
#define CDCLineCoding_MARKPARITY            3
/** Space parity checking. */
#define CDCLineCoding_SPACEPARITY           4
/** @}*/

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

#ifdef __ICCARM__          /* IAR */
#pragma pack(1)            /* IAR */
#define __attribute__(...) /* IAR */
#endif                     /* IAR */

/**
 * \typedef CDCLineCoding
 * \brief Format of the data returned when a GetLineCoding request is received.
 */
typedef struct _CDCLineCoding {

    /** Data terminal rate in bits per second. */
    unsigned int dwDTERate;
    /** Number of stop bits.
        \sa usb_cdc_stop CDC LineCoding StopBits. */
    char bCharFormat;
    /** Type of parity checking used.
        \sa usb_cdc_parity CDC LineCoding ParityCheckings. */
    char bParityType;
    /** Number of data bits (5, 6, 7, 8 or 16). */
    char bDataBits;

} __attribute__ ((packed)) CDCLineCoding; // GCC

#ifdef __ICCARM__          /* IAR */
#pragma pack()             /* IAR */
#endif                     /* IAR */

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

extern void CDCLineCoding_Initialize(CDCLineCoding *lineCoding,
                                     unsigned int bitrate,
                                     unsigned char stopbits,
                                     unsigned char parity,
                                     unsigned char databits);

/**@}*/
#endif /*#ifndef CDCLINECODING_H*/

