90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
|
/****************************************************************************
|
||
|
|
* canutils/canlib/canlib_setsilent.c
|
||
|
|
*
|
||
|
|
* Copyright (C) 2016 Sebastien Lorquet. All rights reserved.
|
||
|
|
* Author: Sebastien Lorquet <sebastien@lorquet.fr>
|
||
|
|
*
|
||
|
|
* 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 NuttX 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 COPYRIGHT HOLDERS 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
|
||
|
|
* COPYRIGHT OWNER 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.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Included Files
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
#include <nuttx/config.h>
|
||
|
|
|
||
|
|
#include <sys/ioctl.h>
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <nuttx/can.h>
|
||
|
|
|
||
|
|
/****************************************************************************
|
||
|
|
* Name: canlib_setsilent
|
||
|
|
*
|
||
|
|
* Description:
|
||
|
|
* Wrapper for CANIOC_SET_CONNMODES. When silent mode is enabled, the CAN
|
||
|
|
* peripheral never transmits on the bus, but receives all bus traffic.
|
||
|
|
*
|
||
|
|
* Input Parameter:
|
||
|
|
* fd - file descriptor of an opened can device
|
||
|
|
* loopback - wether to use loopback mode.
|
||
|
|
*
|
||
|
|
* Returned Value:
|
||
|
|
* Zero (OK) is returned on success. Otherwise -1 (ERROR)
|
||
|
|
* is returned with the errno variable set to indicate the
|
||
|
|
* nature of the error.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
int canlib_setsilent(int fd, bool silent)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
struct canioc_connmodes_s connmodes;
|
||
|
|
|
||
|
|
ret = ioctl(fd, CANIOC_GET_CONNMODES, (unsigned long)&connmodes);
|
||
|
|
if (ret!=OK)
|
||
|
|
{
|
||
|
|
canerr("CANIOC_GET_CONNMODES failed, errno=%d\n", errno);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
connmodes.bm_silent = !!silent;
|
||
|
|
ret = ioctl(fd, CANIOC_SET_CONNMODES, (unsigned long)&connmodes);
|
||
|
|
|
||
|
|
if (ret!=OK)
|
||
|
|
{
|
||
|
|
canerr("CANIOC_SET_CONNMODES failed, errno=%d\n", errno);
|
||
|
|
}
|
||
|
|
return ret;
|
||
|
|
}
|