tinyUSB/tinyusb/class/cdc.h

/**************************************************************************/
/*!
    @file     cdc.h
    @author   hathach (tinyusb.org)

    @section LICENSE

    Software License Agreement (BSD License)

    Copyright (c) 2013, hathach (tinyusb.org)
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions are met:
    1. Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.
    3. Neither the name of the copyright holders nor the
    names of its contributors may be used to endorse or promote products
    derived from this software without specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION HOWEVER CAUSED AND
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    INCLUDING NEGLIGENCE OR OTHERWISE ARISING IN ANY WAY OUT OF THE USE OF THIS
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    This file is part of the tinyusb stack.
*/
/**************************************************************************/

/** \file
 *  \brief CDC Class Driver
 *
 *  \note TBD
 */

/** 
 *  \addtogroup Group_ClassDriver Class Driver
 *  @{
 *  \defgroup Group_CDC Communication Device Class
 *  @{
 */

#ifndef _TUSB_CDC_H__
#define _TUSB_CDC_H__

// todo refractor later
#include "common/common.h"
#include "device/dcd.h"

#define CDC_BUFFER_SIZE (2*CDC_DATA_EP_MAXPACKET_SIZE)

/** \brief send a character to host
 *
 * \param[in]  para1
 * \param[out] para2
 * \return Error Code of the \ref TUSB_ERROR enum
 * \note
 */
bool tusb_cdc_putc(uint8_t c);

/** \brief get a character from host
 *
 * \param[in]  para1
 * \param[out] para2
 * \return Error Code of the \ref TUSB_ERROR enum
 * \note
 */
bool tusb_cdc_getc(uint8_t *c);

/** \brief send a number of characters to host
 *
 * \param[in]  para1
 * \param[out] para2
 * \return Error Code of the \ref TUSB_ERROR enum
 * \note
 */
uint16_t tusb_cdc_send(uint8_t* buffer, uint16_t count);

/** \brief get a number of characters from host
 *
 * \param[in]  para1
 * \param[out] para2
 * \return Error Code of the \ref TUSB_ERROR enum
 * \note
 */
uint16_t tusb_cdc_recv(uint8_t* buffer, uint16_t max);

#ifdef DEVICE_ROMDRIVER
/** \brief initialize cdc driver
 *
 * \param[in]  para1
 * \param[out] para2
 * \return Error Code of the \ref TUSB_ERROR enum
 * \note
 */
tusb_error_t tusb_cdc_init(USBD_HANDLE_T hUsb, USB_INTERFACE_DESCRIPTOR const *const pControlIntfDesc, USB_INTERFACE_DESCRIPTOR const *const pDataIntfDesc, uint32_t* mem_base, uint32_t* mem_size);

/** \brief notify cdc driver that usb is configured
 *
 * \param[in]  para1
 * \param[out] para2
 * \return Error Code of the \ref TUSB_ERROR enum
 * \note
 */
tusb_error_t tusb_cdc_configured(USBD_HANDLE_T hUsb);
#endif

#endif