sam_ba_cdc.h

/*
  Copyright (c) 2015 Arduino LLC.  All right reserved.
  Copyright (c) 2015 Atmel Corporation/Thibaut VIARD.  All right reserved.

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef _SAM_BA_USB_CDC_H_
#define _SAM_BA_USB_CDC_H_

#include <stdint.h>
#include "sam_ba_usb.h"

typedef struct
{
	uint32_t dwDTERate;
	uint8_t bCharFormat;
	uint8_t bParityType;
	uint8_t bDataBits;
} usb_cdc_line_coding_t;

/* CDC Class Specific Request Code */
#define GET_LINE_CODING               0x21A1
#define SET_LINE_CODING               0x2021
#define SET_CONTROL_LINE_STATE        0x2221

extern usb_cdc_line_coding_t line_coding;


/**
 * \brief Sends a single byte through USB CDC
 *
 * \param Data to send
 * \return number of data sent
 */
int cdc_putc(/*P_USB_CDC pCdc,*/ int value);

/**
 * \brief Reads a single byte through USB CDC
 *
 * \return Data read through USB
 */
int cdc_getc(/*P_USB_CDC pCdc*/);

/**
 * \brief Checks if a character has been received on USB CDC
 *
 * \return \c 1 if a byte is ready to be read.
 */
bool cdc_is_rx_ready(/*P_USB_CDC pCdc*/);

/**
 * \brief Sends buffer on USB CDC
 *
 * \param data pointer
 * \param number of data to send
 * \return number of data sent
 */
uint32_t cdc_write_buf(/*P_USB_CDC pCdc,*/ void const* data, uint32_t length);

/**
 * \brief Gets data on USB CDC
 *
 * \param data pointer
 * \param number of data to read
 * \return number of data read
 */
uint32_t cdc_read_buf(/*P_USB_CDC pCdc,*/ void* data, uint32_t length);

/**
 * \brief Gets specified number of bytes on USB CDC
 *
 * \param data pointer
 * \param number of data to read
 * \return number of data read
 */
uint32_t cdc_read_buf_xmd(/*P_USB_CDC pCdc,*/ void* data, uint32_t length);

#endif // _SAM_BA_USB_CDC_H_