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      1 /*	$NetBSD: putter_sys.h,v 1.3 2007/11/20 18:35:22 pooka Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2007  Antti Kantee.  All Rights Reserved.
      5  *
      6  * Development of this software was supported by the
      7  * Research Foundation of Helsinki University of Technology
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
     19  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     21  * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #ifndef _DEV_PUTTER_PUTTERSYS_H_
     32 #define _DEV_PUTTER_PUTTERSYS_H_
     33 
     34 #include <sys/param.h>
     35 #include <sys/proc.h>
     36 
     37 #include <dev/putter/putter.h>
     38 
     39 /*
     40  * Configuration data.
     41  *
     42  * Users of putter currently must be registered statically.  This sucks,
     43  * I know, but what are you going to do since you need static allocation
     44  * for /dev nodes anyway.  Ok, we could be slightly more forgiving about
     45  * this, but let's just wait for devfs for now.
     46  */
     47 #define	PUTTER_MINOR_WILDCARD	0
     48 #define	PUTTER_MINOR_PUD	1
     49 #define	PUTTER_MINOR_COMPAT	0x7ffff		/* will die sometime soon */
     50 
     51 struct putter_ops {
     52 	int	(*pop_getout)(void *, size_t, int, uint8_t **,size_t *,void **);
     53 	void	(*pop_releaseout)(void *, void *, int);
     54 	size_t	(*pop_waitcount)(void *);
     55 	int	(*pop_dispatch)(void *, struct putter_hdr *);
     56 	int	(*pop_close)(void *);
     57 };
     58 
     59 typedef	int (*putter_config_fn)(int, int, int);
     60 
     61 struct putter_instance;
     62 struct putter_instance	*putter_attach(pid_t, int, void *,
     63 				       struct putter_ops *);
     64 void			putter_detach(struct putter_instance *);
     65 void			putter_notify(struct putter_instance *);
     66 int			putter_register(putter_config_fn, int);
     67 
     68 #endif /* _DEV_PUTTER_PUTTERSYS_H_ */
     69