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#ifndef _LINUX_ATARI_JOYSTICK_H
#define _LINUX_ATARI_JOYSTICK_H

/*
 * linux/include/linux/atari_joystick.h
 * header file for Atari Joystick driver
 * by Robert de Vries (robert@and.nl) on 19Jul93
 */

void atari_joystick_interrupt(char*);
int atari_joystick_init(void);
extern int atari_mouse_buttons;

struct joystick_status {
	char		fire;
	char		dir;
	int		ready;
	int		active;
	wait_queue_head_t wait;
};

#endif
hor Linus Torvalds <torvalds@ppc970.osdl.org> 2005-04-16 18:20:36 -0400 committer Linus Torvalds <torvalds@ppc970.osdl.org> 2005-04-16 18:20:36 -0400 Linux-2.6.12-rc2' href='/cgit/cgit.cgi/litmus-rt-budgetable-locks.git/.git/commit/include/sound/util_mem.h?h=update_litmus_2019&id=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2'>1da177e4c3f4
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#ifndef __SOUND_UTIL_MEM_H
#define __SOUND_UTIL_MEM_H

#include <linux/mutex.h>
/*
 *  Copyright (C) 2000 Takashi Iwai <tiwai@suse.de>
 *
 *  Generic memory management routines for soundcard memory allocation
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program 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 this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 */

/*
 * memory block
 */
struct snd_util_memblk {
	unsigned int size;		/* size of this block */
	unsigned int offset;		/* zero-offset of this block */
	struct list_head list;		/* link */
};

#define snd_util_memblk_argptr(blk)	(void*)((char*)(blk) + sizeof(struct snd_util_memblk))

/*
 * memory management information
 */
struct snd_util_memhdr {
	unsigned int size;		/* size of whole data */
	struct list_head block;		/* block linked-list header */
	int nblocks;			/* # of allocated blocks */
	unsigned int used;		/* used memory size */
	int block_extra_size;		/* extra data size of chunk */
	struct mutex block_mutex;	/* lock */
};

/*
 * prototypes
 */
struct snd_util_memhdr *snd_util_memhdr_new(int memsize);
void snd_util_memhdr_free(struct snd_util_memhdr *hdr);
struct snd_util_memblk *snd_util_mem_alloc(struct snd_util_memhdr *hdr, int size);
int snd_util_mem_free(struct snd_util_memhdr *hdr, struct snd_util_memblk *blk);
int snd_util_mem_avail(struct snd_util_memhdr *hdr);

/* functions without mutex */
struct snd_util_memblk *__snd_util_mem_alloc(struct snd_util_memhdr *hdr, int size);
void __snd_util_mem_free(struct snd_util_memhdr *hdr, struct snd_util_memblk *blk);
struct snd_util_memblk *__snd_util_memblk_new(struct snd_util_memhdr *hdr,
					      unsigned int units,
					      struct list_head *prev);

#endif /* __SOUND_UTIL_MEM_H */