usart.h

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/*
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
*/

#ifndef USART_H_
#define USART_H_

#include <stdint.h>

struct usart_conf {
    const char *device;
    uint32_t baudrate;
    uint8_t databits;
    uint8_t stopbits;
    uint8_t paritysetting;
    uint8_t checkparity;
};

void usart_init(struct usart_conf *conf);

typedef void (*usart_callback_t) (uint8_t *buf, int len, void *pxTaskWoken);

void usart_set_callback(usart_callback_t callback);

void usart_insert(char c, void *pxTaskWoken);

void usart_putc(char c);

void usart_putstr(char *buf, int len);

char usart_getc(void);

int usart_messages_waiting(int handle);

static inline int usart_stdio_msgwaiting(void) {
    return usart_messages_waiting(0);
}

#endif /* USART_H_ */

/* @} */