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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