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sysmonvar.h revision 1.10 
      1 /*	$NetBSD: sysmonvar.h,v 1.10 2003/08/11 15:07:14 yamt 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 proc;
     45 struct knote;
     46 struct uio;
     47 
     48 #define	SYSMON_MINOR_ENVSYS	0
     49 #define	SYSMON_MINOR_WDOG	1
     50 #define	SYSMON_MINOR_POWER	2
     51 
     52 /*****************************************************************************
     53  * Environmental sensor support
     54  *****************************************************************************/
     55 
     56 struct sysmon_envsys {
     57 	int32_t sme_envsys_version;	/* ENVSYS API version */
     58 
     59 	LIST_ENTRY(sysmon_envsys) sme_list;
     60 
     61 	const struct envsys_range *sme_ranges;
     62 	struct envsys_basic_info *sme_sensor_info;
     63 	struct envsys_tre_data *sme_sensor_data;
     64 	void *sme_cookie;		/* for ENVSYS back-end */
     65 
     66 	/* Callbacks */
     67 	int (*sme_gtredata)(struct sysmon_envsys *, struct envsys_tre_data *);
     68 	int (*sme_streinfo)(struct sysmon_envsys *, struct envsys_basic_info *);
     69 
     70 	u_int sme_fsensor;		/* sensor index base, from sysmon */
     71 	u_int sme_nsensors;		/* sensor count, from driver */
     72 	int sme_flags;			/* SME_FLAG_ flags defined below */
     73 };
     74 
     75 #define	SME_FLAG_BUSY	0x00000001		/* sme is busy */
     76 #define	SME_FLAG_WANTED	0x00000002		/* someone waiting for this */
     77 
     78 #define	SME_SENSOR_IDX(sme, idx)	((idx) - (sme)->sme_fsensor)
     79 
     80 int	sysmonopen_envsys(dev_t, int, int, struct proc *);
     81 int	sysmonclose_envsys(dev_t, int, int, struct proc *);
     82 int	sysmonioctl_envsys(dev_t, u_long, caddr_t, int, struct proc *);
     83 
     84 int	sysmon_envsys_register(struct sysmon_envsys *);
     85 void	sysmon_envsys_unregister(struct sysmon_envsys *);
     86 
     87 /*****************************************************************************
     88  * Watchdog timer support
     89  *****************************************************************************/
     90 
     91 struct sysmon_wdog {
     92 	const char *smw_name;		/* watchdog device name */
     93 
     94 	LIST_ENTRY(sysmon_wdog) smw_list;
     95 
     96 	void *smw_cookie;		/* for watchdog back-end */
     97 	int (*smw_setmode)(struct sysmon_wdog *);
     98 	int (*smw_tickle)(struct sysmon_wdog *);
     99 	u_int smw_period;		/* timer period (in seconds) */
    100 	int smw_mode;			/* timer mode */
    101 	u_int smw_refcnt;		/* references */
    102 	pid_t smw_tickler;		/* last process to tickle */
    103 };
    104 
    105 int	sysmonopen_wdog(dev_t, int, int, struct proc *);
    106 int	sysmonclose_wdog(dev_t, int, int, struct proc *);
    107 int	sysmonioctl_wdog(dev_t, u_long, caddr_t, int, struct proc *);
    108 
    109 int	sysmon_wdog_register(struct sysmon_wdog *);
    110 void	sysmon_wdog_unregister(struct sysmon_wdog *);
    111 
    112 /*****************************************************************************
    113  * Power management support
    114  *****************************************************************************/
    115 
    116 struct sysmon_pswitch {
    117 	const char *smpsw_name;		/* power switch name */
    118 	int smpsw_type;			/* power switch type */
    119 
    120 	LIST_ENTRY(sysmon_pswitch) smpsw_list;
    121 };
    122 
    123 int	sysmonopen_power(dev_t, int, int, struct proc *);
    124 int	sysmonclose_power(dev_t, int, int, struct proc *);
    125 int	sysmonread_power(dev_t, struct uio *, int);
    126 int	sysmonpoll_power(dev_t, int, struct proc *);
    127 int	sysmonkqfilter_power(dev_t, struct knote *);
    128 int	sysmonioctl_power(dev_t, u_long, caddr_t, int, struct proc *);
    129 
    130 void	sysmon_power_settype(const char *);
    131 
    132 int	sysmon_pswitch_register(struct sysmon_pswitch *);
    133 void	sysmon_pswitch_unregister(struct sysmon_pswitch *);
    134 
    135 void	sysmon_pswitch_event(struct sysmon_pswitch *, int);
    136 
    137 #endif /* _DEV_SYSMON_SYSMONVAR_H_ */
    138