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/**
* \file
*
* \brief USB Standard I/O Serial Management.
*
* This file defines a useful set of functions for the Stdio Serial
* interface on AVR devices.
*
* Copyright (c) 2011-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* 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. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* 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
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
*/
#ifndef _stdio_usb_h_
#define _stdio_usb_h_
/**
* \defgroup group_common_utils_stdio_stdio_usb USB/CDC Standard I/O (stdio)
* \ingroup group_common_utils_stdio
*
* Standard I/O (stdio) management component that implements a stdio
* USB CDC interface on AVR devices.
*
* \{
*/
#include <compiler.h>
#include <stdio.h>
#include <udc.h>
#include <udi_cdc.h>
extern int _write (char c, int *f);
extern int _read (int *f);
//! Pointer to the base of the USART module instance to use for stdio.
extern volatile void *volatile stdio_base;
//! Pointer to the external low level write function.
extern int (*ptr_put)(void volatile*, char);
//! Pointer to the external low level read function.
extern void (*ptr_get)(void volatile*, char*);
/*! \brief Sends a character with the USART.
*
* \param usart Base address of the USART instance.
* \param data Character to write.
*
* \return Status.
* \retval 0 The character was written.
* \retval -1 The function timed out before the transmitter became ready.
*/
int stdio_usb_putchar (volatile void * usart, char data);
/*! \brief Waits until a character is received, and returns it.
*
* \param usart Base address of the USART instance.
* \param data Data to read
*
* \return Nothing.
*/
void stdio_usb_getchar (void volatile * usart, char * data);
/*! \brief Enables the stdio in USB Serial Mode.
*
* \return \c 1 if function was successfully done, otherwise \c 0.
*/
bool stdio_usb_enable(void);
/*! \brief Disables the stdio in USB Serial Mode.
*
* \return Nothing.
*/
void stdio_usb_disable(void);
/*! \brief Initializes the stdio in USB Serial Mode.
*
* \return Nothing.
*/
void stdio_usb_init(void);
/**
* \}
*/
#endif // _stdio_usb_h_
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