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#ifndef _OR32_SEMAPHORE_H

#define _OR32_SEMAPHORE_H

/*

 * SMP- and interrupt-safe semaphores..

 *

 * (C) Copyright 1996 Linus Torvalds

 *

 */

struct semaphore {

        int count;

        int waking;

        int lock;                       /* to make waking testing atomic */

        struct wait_queue * wait;

};

#define MUTEX ((struct semaphore) { 1, 0, 0, NULL })

#define MUTEX_LOCKED ((struct semaphore) { 0, 0, 0, NULL })

extern void down(struct semaphore * sem);

extern int down_interruptible(struct semaphore * sem);

extern void up(struct semaphore * sem);

extern void get_buzz_lock(int *lock_ptr);

extern void give_buzz_lock(int *lock_ptr);

#endif