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/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @defgroup sys_uart_stdio UART stdio
* @ingroup sys
*
* @brief stdio init/read/write functions for UARTs
*
* @{
* @file
*
* @author Kaspar Schleiser <kaspar@schleiser.de>
*/
#ifndef UART_STDIO_H
#define UART_STDIO_H
/* Boards may override the default STDIO UART device */
#include <stdint.h>
#include "board.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef UART_STDIO_DEV
/**
* @brief UART device to use for STDIO
*/
#define UART_STDIO_DEV UART_DEV(0)
#endif
#ifndef UART_STDIO_BAUDRATE
/**
* @brief Baudrate for STDIO
*/
#define UART_STDIO_BAUDRATE (115200)
#endif
#ifndef UART_STDIO_RX_BUFSIZE
/**
* @brief Buffer size for STDIO
*/
#define UART_STDIO_RX_BUFSIZE (64)
#endif
/**
* @brief initialize the module
*/
void uart_stdio_init(void);
/**
* @brief read @p len bytes from stdio uart into @p buffer
*
* @param[out] buffer buffer to read into
* @param[in] len nr of bytes to read
*
* @return nr of bytes read
* @return <0 on error
*/
int uart_stdio_read(char* buffer, int len);
/**
* @brief write @p len bytes from @p buffer into uart
*
* @param[in] buffer buffer to read from
* @param[in] len nr of bytes to write
*
* @return nr of bytes written
* @return <0 on error
*/
int uart_stdio_write(const char* buffer, int len);
/**
* @brief internal callback for periph/uart drivers
*
* @param[in] arg (unused)
* @param[in] data character that has been received
*/
void uart_stdio_rx_cb(void *arg, uint8_t data);
#ifdef __cplusplus
}
#endif
/** @} */
#endif /* UART_STDIO_H */