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sysmonvar.h revision 1.14
      1 /*	$NetBSD: sysmonvar.h,v 1.14 2007/05/08 20:04:42 xtraeme Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2000 Zembu Labs, Inc.
      5  * All rights reserved.
      6  *
      7  * Author: Jason R. Thorpe <thorpej (at) zembu.com>
      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  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *	This product includes software developed by Zembu Labs, Inc.
     20  * 4. Neither the name of Zembu Labs nor the names of its employees may
     21  *    be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS
     25  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR-
     26  * RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS-
     27  * CLAIMED.  IN NO EVENT SHALL ZEMBU LABS BE LIABLE FOR ANY DIRECT, INDIRECT,
     28  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     29  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     30  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     31  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     32  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     33  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     34  */
     35 
     36 #ifndef _DEV_SYSMON_SYSMONVAR_H_
     37 #define	_DEV_SYSMON_SYSMONVAR_H_
     38 
     39 #include <sys/envsys.h>
     40 #include <sys/wdog.h>
     41 #include <sys/power.h>
     42 #include <sys/queue.h>
     43 
     44 struct lwp;
     45 struct proc;
     46 struct knote;
     47 struct uio;
     48 
     49 #define	SYSMON_MINOR_ENVSYS	0
     50 #define	SYSMON_MINOR_WDOG	1
     51 #define	SYSMON_MINOR_POWER	2
     52 
     53 /*****************************************************************************
     54  * Environmental sensor support
     55  *****************************************************************************/
     56 
     57 struct sysmon_envsys {
     58 	int32_t sme_envsys_version;	/* ENVSYS API version */
     59 
     60 	LIST_ENTRY(sysmon_envsys) sme_list;
     61 
     62 	const struct envsys_range *sme_ranges;
     63 	struct envsys_basic_info *sme_sensor_info;
     64 	struct envsys_tre_data *sme_sensor_data;
     65 	void *sme_cookie;		/* for ENVSYS back-end */
     66 
     67 	/* Callbacks */
     68 	int (*sme_gtredata)(struct sysmon_envsys *, struct envsys_tre_data *);
     69 	int (*sme_streinfo)(struct sysmon_envsys *, struct envsys_basic_info *);
     70 
     71 	u_int sme_fsensor;		/* sensor index base, from sysmon */
     72 	u_int sme_nsensors;		/* sensor count, from driver */
     73 	int sme_flags;			/* SME_FLAG_ flags defined below */
     74 };
     75 
     76 #define	SME_FLAG_BUSY	0x00000001		/* sme is busy */
     77 #define	SME_FLAG_WANTED	0x00000002		/* someone waiting for this */
     78 
     79 #define	SME_SENSOR_IDX(sme, idx)	((idx) - (sme)->sme_fsensor)
     80 
     81 int	sysmonopen_envsys(dev_t, int, int, struct lwp *);
     82 int	sysmonclose_envsys(dev_t, int, int, struct lwp *);
     83 int	sysmonioctl_envsys(dev_t, u_long, void *, int, struct lwp *);
     84 
     85 int	sysmon_envsys_register(struct sysmon_envsys *);
     86 void	sysmon_envsys_unregister(struct sysmon_envsys *);
     87 
     88 /*****************************************************************************
     89  * Watchdog timer support
     90  *****************************************************************************/
     91 
     92 struct sysmon_wdog {
     93 	const char *smw_name;		/* watchdog device name */
     94 
     95 	LIST_ENTRY(sysmon_wdog) smw_list;
     96 
     97 	void *smw_cookie;		/* for watchdog back-end */
     98 	int (*smw_setmode)(struct sysmon_wdog *);
     99 	int (*smw_tickle)(struct sysmon_wdog *);
    100 	u_int smw_period;		/* timer period (in seconds) */
    101 	int smw_mode;			/* timer mode */
    102 	u_int smw_refcnt;		/* references */
    103 	pid_t smw_tickler;		/* last process to tickle */
    104 };
    105 
    106 int	sysmonopen_wdog(dev_t, int, int, struct lwp *);
    107 int	sysmonclose_wdog(dev_t, int, int, struct lwp *);
    108 int	sysmonioctl_wdog(dev_t, u_long, void *, int, struct lwp *);
    109 
    110 int     sysmon_wdog_register(struct sysmon_wdog *);
    111 void    sysmon_wdog_unregister(struct sysmon_wdog *);
    112 
    113 /*****************************************************************************
    114  * Power management support
    115  *****************************************************************************/
    116 
    117 struct sysmon_pswitch {
    118 	const char *smpsw_name;		/* power switch name */
    119 	int smpsw_type;			/* power switch type */
    120 
    121 	LIST_ENTRY(sysmon_pswitch) smpsw_list;
    122 };
    123 
    124 int	sysmonopen_power(dev_t, int, int, struct lwp *);
    125 int	sysmonclose_power(dev_t, int, int, struct lwp *);
    126 int	sysmonread_power(dev_t, struct uio *, int);
    127 int	sysmonpoll_power(dev_t, int, struct lwp *);
    128 int	sysmonkqfilter_power(dev_t, struct knote *);
    129 int	sysmonioctl_power(dev_t, u_long, void *, int, struct lwp *);
    130 
    131 void	sysmon_power_settype(const char *);
    132 
    133 int	sysmon_pswitch_register(struct sysmon_pswitch *);
    134 void	sysmon_pswitch_unregister(struct sysmon_pswitch *);
    135 
    136 void	sysmon_pswitch_event(struct sysmon_pswitch *, int);
    137 
    138 #endif /* _DEV_SYSMON_SYSMONVAR_H_ */
    139