sys/dev/pud/pud_sys.h

   1 /*      $NetBSD$        */
   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_PUD_PUDSYS_H_
  32 #define _DEV_PUD_PUDSYS_H_
  33
  34 #include <dev/putter/putter_sys.h>
  35
  36 #include <dev/pud/pud_msgif.h>
  37
  38 struct pud_touser {
  39         struct pud_req          *pt_pdr;
  40
  41         kcondvar_t              pt_cv;
  42         TAILQ_ENTRY(pud_touser) pt_entries;
  43 };
  44
  45 struct pud_dev {
  46         dev_t                   pd_dev;
  47         struct putter_instance  *pd_pi;
  48
  49         kmutex_t                pd_mtx;
  50
  51         TAILQ_HEAD(,pud_touser) pd_waitq_req;
  52         TAILQ_HEAD(,pud_touser) pd_waitq_resp;
  53         kcondvar_t              pd_waitq_req_cv;
  54         size_t                  pd_waitcount;
  55
  56         kcondvar_t              pd_draincv;
  57
  58         LIST_ENTRY(pud_dev)     pd_entries;
  59
  60         uint64_t                pd_nextreq;
  61 };
  62
  63 int             pud_config(int, int, int);
  64 int             pud_request(dev_t, void *, size_t, int, int);
  65
  66 struct pud_dev  *pud_dev2pud(dev_t);
  67
  68 #endif /* _DEV_PUD_PUDSYS_H_ */