210de35cb5
arm: sam & tiva: codestyle fixes
* arm: samd2l2: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: samd5e5: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: samv7: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
* arm: tiva: codestyle fixes
After the board restructuration is time for codestyle cleanup
Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
Approved-by: Gregory Nutt <gnutt@nuttx.org>
114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/****************************************************************************
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* boards/arm/samv7/same70-xplained/src/sam_mcan.c
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*
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* Copyright (C) 2015-2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* 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 COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <errno.h>
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#include <debug.h>
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#include <nuttx/can/can.h>
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#include <arch/board/board.h>
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#include "sam_mcan.h"
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#include "same70-xplained.h"
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#ifdef CONFIG_SAMV7_MCAN
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#if defined(CONFIG_SAMV7_MCAN0) && defined(CONFIG_SAMV7_MCAN1)
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# warning "Both MCAN0 and MCAN1 are enabled. Assuming only CAN1."
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# undef CONFIG_SAMV7_MCAN0
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#endif
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#ifdef CONFIG_SAMV7_MCAN0
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# define CAN_PORT 0
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#else
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# define CAN_PORT 1
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: sam_can_setup
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*
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* Description:
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* Initialize CAN and register the CAN device
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*
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****************************************************************************/
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int sam_can_setup(void)
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{
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#if defined(CONFIG_SAMV7_MCAN0) || defined(CONFIG_SAMV7_MCAN1)
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struct can_dev_s *can;
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int ret;
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/* Call stm32_caninitialize() to get an instance of the CAN interface */
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can = sam_mcan_initialize(CAN_PORT);
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if (can == NULL)
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{
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canerr("ERROR: Failed to get CAN interface\n");
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return -ENODEV;
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}
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/* Register the CAN driver at "/dev/can0" */
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ret = can_register("/dev/can0", can);
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if (ret < 0)
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{
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canerr("ERROR: can_register failed: %d\n", ret);
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return ret;
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}
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return OK;
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#else
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return -ENODEV;
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#endif
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}
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#endif /* CONFIG_SAMV7_MCAN */
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