81 lines
2.7 KiB
C
81 lines
2.7 KiB
C
/******************************************************************************
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*
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* $Id$
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*
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* Copyright (C) 2006-2008 Florian Pose, Ingenieurgemeinschaft IgH
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*
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* This file is part of the IgH EtherCAT Master.
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*
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* The IgH EtherCAT Master is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2, as
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* published by the Free Software Foundation.
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*
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* The IgH EtherCAT Master is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the IgH EtherCAT Master; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* ---
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*
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* The license mentioned above concerns the source code only. Using the
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* EtherCAT technology and brand is only permitted in compliance with the
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* industrial property and similar rights of Beckhoff Automation GmbH.
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*
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*****************************************************************************/
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/**
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\file
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Abstract locks
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*/
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/*****************************************************************************/
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#ifndef __EC_LOCKS_H__
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#define __EC_LOCKS_H__
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#include "globals.h"
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
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#include <linux/semaphore.h>
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#else
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#include <asm/semaphore.h>
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#endif
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/*****************************************************************************/
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#ifdef EC_USE_RTMUTEX
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#include <linux/rtmutex.h>
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typedef struct rt_mutex ec_lock_t;
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static inline void ec_lock_init(ec_lock_t *sem) { rt_mutex_init(sem); }
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static inline void ec_lock_down(ec_lock_t *sem) { rt_mutex_lock(sem); }
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 34)
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static inline int ec_lock_down_interruptible(ec_lock_t *sem) { return rt_mutex_lock_interruptible(sem); }
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#else
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static inline int ec_lock_down_interruptible(ec_lock_t *sem) { return rt_mutex_lock_interruptible(sem, 1); }
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#endif
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static inline void ec_lock_up(ec_lock_t *sem) { rt_mutex_unlock(sem); }
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#else
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typedef struct semaphore ec_lock_t;
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static inline void ec_lock_init(ec_lock_t *sem) { sema_init(sem, 1); }
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static inline void ec_lock_down(ec_lock_t *sem) { down(sem); }
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static inline int ec_lock_down_interruptible(ec_lock_t *sem) { return down_interruptible(sem); }
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static inline void ec_lock_up(ec_lock_t *sem) { up(sem); }
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#endif
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/*****************************************************************************/
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#endif
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/*****************************************************************************/
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