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Merged in slorquet/apps/canlib (pull request #46)

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Basic CAN utility library
This commit is contained in:
Gregory Nutt 2016-06-24 07:04:57 -06:00
commit 06704e041a
10 changed files with 805 additions and 0 deletions
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17
canutils/canlib/Kconfig Normal file
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#
# For a description of the syntax of this configuration file,
# see the file kconfig-language.txt in the NuttX tools repository.
#
config CANUTILS_CANLIB
bool "CAN utility library"
default n
depends on CAN && LIB_BOARDCTL
select BOARDCTL_CANINIT
---help---
Enable the CAN utility library
if CANUTILS_CANLIB
endif

39
canutils/canlib/Make.defs Normal file
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############################################################################
# apps/canutils/canlib/Make.defs
# Adds selected applications to apps/ build
#
# 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.
#
############################################################################
ifeq ($(CONFIG_CANUTILS_CANLIB),y)
CONFIGURED_APPS += canutils/canlib
endif

45
canutils/canlib/Makefile Normal file
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############################################################################
# apps/canutils/canlib/Makefile
#
# 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.
#
############################################################################
-include $(TOPDIR)/Make.defs
# CAN utility library
ASRCS =
CSRCS = canlib_getbaud.c canlib_setbaud.c
CSRCS+= canlib_getloopback.c canlib_setloopback.c
CSRCS+= canlib_getsilent.c canlib_setsilent.c
include $(APPDIR)/Application.mk

82
canutils/canlib/canlib_getbaud.c Normal file
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/****************************************************************************
* canutils/canlib/canlib_getbaud.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 <fcntl.h>
#include <errno.h>
#include <nuttx/can.h>
/****************************************************************************
* Name: canlib_getbaud
*
* Description:
* Wrapper for CANIOC_GET_BITTIMING
*
* Input Parameter:
* fd - file descriptor of an opened can device
* baud - pointer to a buffer to store the current baud rate
*
* 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_getbaud(int fd, FAR int *bauds)
{
int ret;
struct canioc_bittiming_s timings;
ret = ioctl(fd, CANIOC_GET_BITTIMING, (unsigned long)&timings);
if (ret!=OK)
{
canerr("CANIOC_GET_BITTIMING failed, errno=%d\n", errno);
return 0;
}
*bauds = timings.bt_baud;
return ret;
}

83
canutils/canlib/canlib_getloopback.c Normal file
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/****************************************************************************
* canutils/canlib/canlib_getloopback.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_getloopback
*
* Description:
* Wrapper for CANIOC_GET_CONNMODES.
*
* Input Parameter:
* fd - file descriptor of an opened can device
* loopback - pointer to a buffer to store the current loopback mode state.
*
* 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_getloopback(int fd, FAR bool *loopback)
{
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 FALSE;
}
*loopback = (bool)connmodes.bm_loopback;
return ret;
}

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canutils/canlib/canlib_getsilent.c Normal file
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/****************************************************************************
* canutils/canlib/canlib_getsilent.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_getsilent
*
* Description:
* Wrapper for CANIOC_GET_CONNMODES.
*
* Input Parameter:
* fd - file descriptor of an opened can device
* loopback - pointer to a buffer to store the current silent mode state.
*
* 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_getsilent(int fd, FAR 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 FALSE;
}
*silent = (bool)connmodes.bm_silent;
return ret;
}

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canutils/canlib/canlib_setbaud.c Normal file
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/****************************************************************************
* canutils/canlib/canlib_setbaud.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 <fcntl.h>
#include <errno.h>
#include <nuttx/can.h>
/****************************************************************************
* Name: canlib_setbaud
*
* Description:
* Wrapper for CANIOC_SET_BITTIMING
*
* Input Parameter:
* fd - file descriptor of an opened can device
* baud - baud rate to use on the CAN bus
*
* 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_setbaud(int fd, int bauds)
{
int ret;
struct canioc_bittiming_s timings;
ret = ioctl(fd, CANIOC_GET_BITTIMING, (unsigned long)&timings);
if (ret!=OK)
{
canerr("CANIOC_GET_BITTIMING failed, errno=%d\n", errno);
return ret;
}
timings.bt_baud = bauds;
ret = ioctl(fd, CANIOC_SET_BITTIMING, (unsigned long)&timings);
if (ret!=OK)
{
canerr("CANIOC_SET_BITTIMING failed, errno=%d\n", errno);
}
return ret;
}

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canutils/canlib/canlib_setloopback.c Normal file
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/****************************************************************************
* canutils/canlib/canlib_setloopback.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_setloopback
*
* Description:
* Wrapper for CANIOC_SET_CONNMODES. When loopback mode is enabled, the CAN
* peripheral transmits on the bus, but only receives its own sent messages.
*
* 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_setloopback(int fd, bool loopback)
{
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_loopback = !!loopback;
ret = ioctl(fd, CANIOC_SET_CONNMODES, (unsigned long)&connmodes);
if (ret!=OK)
{
canerr("CANIOC_SET_CONNMODES failed, errno=%d\n", errno);
}
return ret;
}

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canutils/canlib/canlib_setsilent.c Normal file
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/****************************************************************************
* 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;
}

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/****************************************************************************
* apps/include/canutils/canlib.h
* Various non-standard APIs to support canutils. All non-standard and
* intended only for internal use.
*
* Copyright (C) 2016 Sebastien Lorquet Nutt. 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. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
****************************************************************************/
#ifndef __APPS_INCLUDE_CANUTILS_CANLIB_H
#define __APPS_INCLUDE_CANUTILS_CANLIB_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: canlib_setbaud
*
* Description:
* Wrapper for CANIOC_SET_BITTIMING
*
* Input Parameter:
* fd - file descriptor of an opened can device
* baud - baud rate to use on the CAN bus
*
* 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_setbaud(int fd, int bauds);
/****************************************************************************
* Name: canlib_getbaud
*
* Description:
* Wrapper for CANIOC_GET_BITTIMING
*
* Input Parameter:
* fd - file descriptor of an opened can device
* baud - pointer to a buffer to store the current baud rate
*
* 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_getbaud(int fd, FAR int *bauds);
/****************************************************************************
* Name: canlib_setloopback
*
* Description:
* Wrapper for CANIOC_SET_CONNMODES. When loopback mode is enabled, the CAN
* peripheral transmits on the bus, but only receives its own sent messages.
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Name: canlib_getloopback
*
* Description:
* Wrapper for CANIOC_GET_CONNMODES.
*
* Input Parameter:
* fd - file descriptor of an opened can device
* loopback - pointer to a buffer to store the current loopback mode state.
*
* 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_setloopback(int fd, bool loop);
int canlib_getloopback(int fd, FAR bool *loop);
/****************************************************************************
* 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);
/****************************************************************************
* Name: canlib_getsilent
*
* Description:
* Wrapper for CANIOC_GET_CONNMODES.
*
* Input Parameter:
* fd - file descriptor of an opened can device
* loopback - pointer to a buffer to store the current silent mode state.
*
* 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_getsilent(int fd, FAR bool *silent);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __APPS_INCLUDE_CANUTILS_CANLIB_H */