63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2005, Swedish Institute of Computer Science
|
|
* 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 Institute 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 INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* @(#)$Id: ctsrts-sensor.h,v 1.2 2010/01/14 17:39:35 nifi Exp $
|
|
*/
|
|
|
|
/**
|
|
* RTS/CTS (Request to Send/Clear to Send) are the signals used for hardware
|
|
* flow control. By setting the RTS line to "ON" the host tells the connected
|
|
* device that it is ready to receive data. Hardware flow control is not
|
|
* implemented yet. This implementation is just so some application can use
|
|
* the pins, it would also be possible for rs232.c to use it for hardware
|
|
* handshake but that is not implemented yet.
|
|
*/
|
|
#ifndef __CTSRTS_SENSOR_H__
|
|
#define __CTSRTS_SENSOR_H__
|
|
|
|
#include "lib/sensors.h"
|
|
|
|
extern const struct sensors_sensor ctsrts_sensor;
|
|
|
|
#define CTSRTS_SENSOR "CTSRTS"
|
|
|
|
/**
|
|
* Indicate to host/client we are NOT ready to receive data. Sets the RTS pin
|
|
* to low.
|
|
*/
|
|
void ctsrts_rts_clear(void);
|
|
|
|
/**
|
|
* Request host/client to send data. Sets the RTS pin to high.
|
|
*/
|
|
void ctsrts_rts_set(void);
|
|
|
|
#endif /* __CTSRTS_SENSOR_H__ */
|