77 lines
2.8 KiB
C
77 lines
2.8 KiB
C
/*
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* Copyright (c) 2005, Swedish Institute of Computer Science
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* @(#)$Id: serial.h,v 1.1 2006/06/17 22:41:17 adamdunkels Exp $
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*/
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/**
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* \file
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* Generic serial I/O process header filer
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* \author
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* Adam Dunkels
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*
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*/
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#ifndef __SERIAL_H__
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#define __SERIAL_H__
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#include "contiki.h"
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/**
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* Event posted when a line of input has been received.
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*
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* This event is posted when an entire line of input has been received
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* from the serial port. A data pointer to the incoming line of input
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* is sent together with the event.
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*/
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extern process_event_t serial_event_message;
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/**
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* Get one byte of input from the serial driver.
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*
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* This function is to be called from the actual RS232 driver to get
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* one byte of serial data input.
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*
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* For systems using low-power CPU modes, the return value of the
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* function can be used to determine if the CPU should be woken up or
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* not. If the function returns non-zero, the CPU should be powered
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* up. If the function returns zero, the CPU can continue to be
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* powered down.
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*
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* \param c The data that is received.
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*
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* \return Non-zero if the CPU should be powered up, zero otherwise.
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*/
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int serial_input_byte(unsigned char c);
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void serial_init(void);
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PROCESS_NAME(serial_process);
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#endif /* __SERIAL_H__ */
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