contiki/platform/cooja/dev/rs232.c

110 lines
4.0 KiB
C
Raw Normal View History

/*
* Copyright (c) 2006, 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.
*
* $Id: rs232.c,v 1.1 2006/08/21 12:11:19 fros4943 Exp $
*/
#include "lib/sensors.h"
#include "dev/rs232.h"
#include "dev/serial.h"
#include "lib/simEnvChange.h"
#include <string.h>
#include <stdio.h>
const struct simInterface rs232_interface;
#define SERIAL_BUF_SIZE 1024
// COOJA variables
char simSerialReceivingData[SERIAL_BUF_SIZE];
int simSerialReceivingLength;
char simSerialReceivingFlag;
char simSerialSendingData[SERIAL_BUF_SIZE];
int simSerialSendingLength;
char simSerialSendingFlag;
static int (* input_handler)(unsigned char) = NULL;
/*-----------------------------------------------------------------------------------*/
void rs232_init(void) { }
/*-----------------------------------------------------------------------------------*/
void rs232_set_speed(unsigned char speed) { }
/*-----------------------------------------------------------------------------------*/
void
rs232_set_input(int (*f)(unsigned char))
{
input_handler = f;
}
/*-----------------------------------------------------------------------------------*/
void rs232_send(char c) {
simSerialSendingData[simSerialSendingLength] = c;
simSerialSendingLength += 1;
simSerialSendingFlag = 1;
}
/*-----------------------------------------------------------------------------------*/
void
rs232_print(char *message)
{
memcpy(&simSerialSendingData[0] + simSerialSendingLength, &message[0], strlen(message));
simSerialSendingLength += strlen(message);
simSerialSendingFlag = 1;
}
/*-----------------------------------------------------------------------------------*/
static void
doInterfaceActionsBeforeTick(void)
{
int i;
// Check if this mote has received data on RS232
if (simSerialReceivingFlag && simSerialReceivingLength > 0) {
// Tell user specified poll function
if(input_handler != NULL)
for (i=0; i < simSerialReceivingLength; i++)
input_handler(simSerialReceivingData[i]);
// Tell serial process
for (i=0; i < simSerialReceivingLength; i++)
serial_input_byte(simSerialReceivingData[i]);
serial_input_byte(0x0a);
simSerialReceivingLength = 0;
simSerialReceivingFlag = 0;
}
}
/*-----------------------------------------------------------------------------------*/
static void
doInterfaceActionsAfterTick(void)
{
}
/*-----------------------------------------------------------------------------------*/
SIM_INTERFACE(rs232_interface,
doInterfaceActionsBeforeTick,
doInterfaceActionsAfterTick);