sys/dev/putter/putter_sys.h

   1 /*      $NetBSD: putter_sys.h,v 1.2 2007/11/12 17:42:13 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_ */