[deliverable/linux.git] / drivers / staging / csr / oska / mutex.h

/*
 * OSKA Linux implementation -- mutexes
 *
 * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
 *
 * Refer to LICENSE.txt included with this source code for details on
 * the license terms.
 */
#ifndef __OSKA_LINUX_MUTEX_H
#define __OSKA_LINUX_MUTEX_H

#include <linux/kernel.h>
#include <linux/mutex.h>
#include <linux/semaphore.h>


/* Real mutexes were only added to 2.6.16 so use semaphores
   instead. */
typedef struct semaphore os_mutex_t;

static inline void os_mutex_init(os_mutex_t *mutex)
{
    //init_MUTEX(mutex);
    sema_init(mutex, 1);
}

static inline void os_mutex_destroy(os_mutex_t *mutex)
{
    /* no op */
}

static inline void os_mutex_lock(os_mutex_t *mutex)
{
    down(mutex);
}

static inline void os_mutex_unlock(os_mutex_t *mutex)
{
    up(mutex);
}

#endif /* __OSKA_LINUX_MUTEX_H */
Commit	Line	Data
15a4bc17 GKH	1	/*
	2	* OSKA Linux implementation -- mutexes
	3	*
	4	* Copyright (C) 2007 Cambridge Silicon Radio Ltd.
	5	*
	6	* Refer to LICENSE.txt included with this source code for details on
	7	* the license terms.
	8	*/
	9	#ifndef __OSKA_LINUX_MUTEX_H
	10	#define __OSKA_LINUX_MUTEX_H
	11
	12	#include <linux/kernel.h>
	13	#include <linux/mutex.h>
7a72e416	14	#include <linux/semaphore.h>
15a4bc17	15
15a4bc17 GKH	16
	17	/* Real mutexes were only added to 2.6.16 so use semaphores
	18	instead. */
	19	typedef struct semaphore os_mutex_t;
	20
	21	static inline void os_mutex_init(os_mutex_t *mutex)
	22	{
	23	//init_MUTEX(mutex);
	24	sema_init(mutex, 1);
	25	}
	26
	27	static inline void os_mutex_destroy(os_mutex_t *mutex)
	28	{
	29	/* no op */
	30	}
	31
	32	static inline void os_mutex_lock(os_mutex_t *mutex)
	33	{
	34	down(mutex);
	35	}
	36
	37	static inline void os_mutex_unlock(os_mutex_t *mutex)
	38	{
	39	up(mutex);
	40	}
	41
	42	#endif /* __OSKA_LINUX_MUTEX_H */