The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/midi/timer.h

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    1 /*
    2  * Include file for a midi timer.
    3  * 
    4  * Copyright by Seigo Tanimura 2002.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  *
   27  * $FreeBSD: releng/5.0/sys/dev/sound/midi/timer.h 88870 2002-01-04 01:16:18Z tanimura $
   28  *
   29  */
   30 
   31 #ifndef _TIMER_H_
   32 #define _TIMER_H_
   33 
   34 typedef struct _timerdev_info timerdev_info;
   35 
   36 typedef int (tmr_open_t)(timerdev_info *tmd, int oflags, int devtype, struct thread *td);
   37 typedef int (tmr_close_t)(timerdev_info *tmd, int fflag, int devtype, struct thread *td);
   38 typedef int (tmr_event_t)(timerdev_info *tmd, u_char *ev);
   39 typedef int (tmr_gettime_t)(timerdev_info *tmd, u_long *t);
   40 typedef int (tmr_ioctl_t)(timerdev_info *tmd, u_long cmd, caddr_t data, int fflag, struct thread *td);
   41 typedef int (tmr_armtimer_t)(timerdev_info *tmd, u_long t);
   42 
   43 struct _timerdev_info {
   44         /*
   45          * the first part of the descriptor is filled up from a
   46          * template.
   47          */
   48         char            name[32];
   49 
   50         int             caps;
   51         int             prio;
   52 
   53         tmr_open_t      *open;
   54         tmr_close_t     *close;
   55         tmr_event_t     *event;
   56         tmr_gettime_t   *gettime;
   57         tmr_ioctl_t     *ioctl;
   58         tmr_armtimer_t  *armtimer;
   59 
   60 
   61         int             unit;
   62         void            *softc;
   63         void            *seq;
   64 
   65         /* The tailq entry of the next timer device. */
   66         TAILQ_ENTRY(_timerdev_info)     tmd_link;
   67 
   68         int             opened;
   69 
   70         struct mtx      mtx;
   71 };
   72 
   73 #ifdef _KERNEL
   74 int             timerdev_install(void);
   75 timerdev_info   *create_timerdev_info_unit(timerdev_info *tmdinf);
   76 timerdev_info   *get_timerdev_info_unit(int unit);
   77 timerdev_info   *get_timerdev_info(void);
   78 #endif /* _KERNEL */
   79 
   80 #endif /* _TIMER_H_ */

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