139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/* $NetBSD: sysmon.c,v 1.4 2000/11/05 04:06:13 thorpej Exp $ */
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/*-
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* Copyright (c) 2000 Zembu Labs, Inc.
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* All rights reserved.
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*
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* Author: Jason R. Thorpe <thorpej@zembu.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Zembu Labs, Inc.
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* 4. Neither the name of Zembu Labs nor the names of its employees may
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR-
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* RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS-
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* CLAIMED. IN NO EVENT SHALL ZEMBU LABS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Clearing house for system monitoring hardware. We currently
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* handle environmental sensors and watchdog timers.
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*/
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#include <sys/param.h>
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#include <sys/conf.h>
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#include <sys/errno.h>
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#include <sys/fcntl.h>
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#include <sys/lock.h>
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#include <sys/callout.h>
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#include <sys/kernel.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <dev/sysmon/sysmonvar.h>
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#include <dev/sysmon/sysmonconf.h>
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cdev_decl(sysmon);
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/*
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* sysmonopen:
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*
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* Open the system monitor device.
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*/
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int
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sysmonopen(dev_t dev, int flag, int mode, struct proc *p)
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{
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int error;
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switch (minor(dev)) {
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#if NSYSMON_ENVSYS > 0
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case SYSMON_MINOR_ENVSYS:
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error = sysmonopen_envsys(dev, flag, mode, p);
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break;
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#endif
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#if NSYSMON_WDOG > 0
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case SYSMON_MINOR_WDOG:
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error = sysmonopen_wdog(dev, flag, mode, p);
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break;
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#endif
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default:
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error = ENODEV;
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}
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return (error);
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}
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/*
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* sysmonclose:
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*
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* Close the system monitor device.
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*/
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int
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sysmonclose(dev_t dev, int flag, int mode, struct proc *p)
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{
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int error;
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switch (minor(dev)) {
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#if NSYSMON_ENVSYS > 0
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case SYSMON_MINOR_ENVSYS:
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error = sysmonclose_envsys(dev, flag, mode, p);
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break;
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#endif
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#if NSYSMON_WDOG > 0
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case SYSMON_MINOR_WDOG:
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error = sysmonclose_wdog(dev, flag, mode, p);
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break;
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#endif
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default:
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error = ENODEV;
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}
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return (error);
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}
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/*
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* sysmonioctl:
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*
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* Perform a control request.
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*/
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int
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sysmonioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
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{
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int error;
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switch (minor(dev)) {
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#if NSYSMON_ENVSYS > 0
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case SYSMON_MINOR_ENVSYS:
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error = sysmonioctl_envsys(dev, cmd, data, flag, p);
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break;
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#endif
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#if NSYSMON_WDOG > 0
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case SYSMON_MINOR_WDOG:
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error = sysmonioctl_wdog(dev, cmd, data, flag, p);
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break;
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#endif
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default:
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error = ENODEV;
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}
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return (error);
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}
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