108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/*
|
|
Cubesat Space Protocol - A small network-layer protocol designed for Cubesats
|
|
Copyright (C) 2012 GomSpace ApS (http://www.gomspace.com)
|
|
Copyright (C) 2012 AAUSAT3 Project (http://aausat3.space.aau.dk)
|
|
|
|
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 Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* Common USART interface,
|
|
* This file is derived from the Gomspace USART driver,
|
|
* the main difference is the assumption that only one USART will be present on a PC
|
|
*/
|
|
|
|
#ifndef USART_H_
|
|
#define USART_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/**
|
|
Usart configuration, to be used with the usart_init call.
|
|
*/
|
|
struct usart_conf {
|
|
//! USART device.
|
|
const char *device;
|
|
//! bits per second.
|
|
uint32_t baudrate;
|
|
//! Number of data bits.
|
|
uint8_t databits;
|
|
//! Number of stop bits.
|
|
uint8_t stopbits;
|
|
//! Parity setting.
|
|
uint8_t paritysetting;
|
|
//! Enable parity checking (Windows only).
|
|
uint8_t checkparity;
|
|
};
|
|
|
|
/**
|
|
Initialise UART with the usart_conf data structure
|
|
@param[in] conf full configuration structure
|
|
*/
|
|
void usart_init(struct usart_conf *conf);
|
|
|
|
/**
|
|
In order to catch incoming chars use the callback.
|
|
Only one callback per interface.
|
|
@param[in] handle usart[0,1,2,3]
|
|
@param[in] callback function pointer
|
|
*/
|
|
typedef void (*usart_callback_t) (uint8_t *buf, int len, void *pxTaskWoken);
|
|
|
|
/**
|
|
Set callback for receiving data.
|
|
*/
|
|
void usart_set_callback(usart_callback_t callback);
|
|
|
|
/**
|
|
Insert a character to the RX buffer of a usart
|
|
|
|
@param[in] c character to insert
|
|
@param[out] pxTaskWoken can be set, if context switch is required due to received data.
|
|
*/
|
|
void usart_insert(char c, void *pxTaskWoken);
|
|
|
|
/**
|
|
Polling putchar (stdin).
|
|
|
|
@param[in] c Character to transmit
|
|
*/
|
|
void usart_putc(char c);
|
|
|
|
/**
|
|
Send char buffer on UART (stdout).
|
|
|
|
@param[in] buf Pointer to data
|
|
@param[in] len Length of data
|
|
*/
|
|
void usart_putstr(char *buf, int len);
|
|
|
|
/**
|
|
Buffered getchar (stdin).
|
|
|
|
@return Character received
|
|
*/
|
|
char usart_getc(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
#endif /* USART_H_ */
|