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