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sysmonvar.h revision 1.17 
      1 /*	$NetBSD: sysmonvar.h,v 1.17 2007/09/02 00:41:25 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 #ifndef _LKM
     40 #include "opt_compat_netbsd.h"
     41 #endif
     42 #include <sys/envsys.h>
     43 #include <sys/wdog.h>
     44 #include <sys/power.h>
     45 #include <sys/queue.h>
     46 
     47 struct lwp;
     48 struct proc;
     49 struct knote;
     50 struct uio;
     51 
     52 #define	SYSMON_MINOR_ENVSYS	0
     53 #define	SYSMON_MINOR_WDOG	1
     54 #define	SYSMON_MINOR_POWER	2
     55 
     56 /*****************************************************************************
     57  * Environmental sensor support
     58  *****************************************************************************/
     59 
     60 struct sme_sensor_names {
     61 	SLIST_ENTRY(sme_sensor_names) sme_names;
     62 	int 	assigned;
     63 	char 	desc[ENVSYS_DESCLEN];
     64 };
     65 
     66 struct sysmon_envsys {
     67 	const char *sme_name;			/* envsys device name */
     68 	uint32_t sme_nsensors;			/* sensor count, from driver */
     69 	uint32_t sme_uniqsensors;
     70 	int sme_flags;				/* additional flags */
     71 #define SME_FLAG_BUSY 		0x00000001 	/* sme is busy */
     72 #define SME_FLAG_WANTED 	0x00000002 	/* someone waiting for this */
     73 #define SME_DISABLE_GTREDATA	0x00000004	/* disable sme_gtredata */
     74 
     75 	envsys_data_t *sme_sensor_data;		/* pointer to device data */
     76 
     77 	/* linked list for the sysmon envsys devices */
     78 	LIST_ENTRY(sysmon_envsys) sme_list;
     79 	/*
     80 	 * Singly linked list for the sysmon envsys sensor descriptions.
     81 	 */
     82 	SLIST_HEAD(, sme_sensor_names) sme_names_list;
     83 
     84 	void *sme_cookie;			/* for ENVSYS back-end */
     85 
     86 	/* Function callback to recieve data from device */
     87 	int (*sme_gtredata)(struct sysmon_envsys *, envsys_data_t *);
     88 
     89 #ifdef COMPAT_40
     90 	u_int sme_fsensor;		/* sensor index base, from sysmon */
     91 #define SME_SENSOR_IDX(sme, idx)	((idx) - (sme)->sme_fsensor)
     92 #endif
     93 };
     94 
     95 int	sysmonopen_envsys(dev_t, int, int, struct lwp *);
     96 int	sysmonclose_envsys(dev_t, int, int, struct lwp *);
     97 int	sysmonioctl_envsys(dev_t, u_long, void *, int, struct lwp *);
     98 
     99 int	sysmon_envsys_register(struct sysmon_envsys *);
    100 void	sysmon_envsys_unregister(struct sysmon_envsys *);
    101 struct	sysmon_envsys *sysmon_envsys_find(const char *);
    102 
    103 void	sysmon_envsys_init(void);
    104 
    105 /*****************************************************************************
    106  * Watchdog timer support
    107  *****************************************************************************/
    108 
    109 struct sysmon_wdog {
    110 	const char *smw_name;		/* watchdog device name */
    111 
    112 	LIST_ENTRY(sysmon_wdog) smw_list;
    113 
    114 	void *smw_cookie;		/* for watchdog back-end */
    115 	int (*smw_setmode)(struct sysmon_wdog *);
    116 	int (*smw_tickle)(struct sysmon_wdog *);
    117 	u_int smw_period;		/* timer period (in seconds) */
    118 	int smw_mode;			/* timer mode */
    119 	u_int smw_refcnt;		/* references */
    120 	pid_t smw_tickler;		/* last process to tickle */
    121 };
    122 
    123 int	sysmonopen_wdog(dev_t, int, int, struct lwp *);
    124 int	sysmonclose_wdog(dev_t, int, int, struct lwp *);
    125 int	sysmonioctl_wdog(dev_t, u_long, void *, int, struct lwp *);
    126 
    127 int     sysmon_wdog_register(struct sysmon_wdog *);
    128 void    sysmon_wdog_unregister(struct sysmon_wdog *);
    129 
    130 void	sysmon_wdog_init(void);
    131 
    132 /*****************************************************************************
    133  * Power management support
    134  *****************************************************************************/
    135 
    136 struct sysmon_pswitch {
    137 	const char *smpsw_name;		/* power switch name */
    138 	int smpsw_type;			/* power switch type */
    139 
    140 	LIST_ENTRY(sysmon_pswitch) smpsw_list;
    141 };
    142 
    143 int	sysmonopen_power(dev_t, int, int, struct lwp *);
    144 int	sysmonclose_power(dev_t, int, int, struct lwp *);
    145 int	sysmonread_power(dev_t, struct uio *, int);
    146 int	sysmonpoll_power(dev_t, int, struct lwp *);
    147 int	sysmonkqfilter_power(dev_t, struct knote *);
    148 int	sysmonioctl_power(dev_t, u_long, void *, int, struct lwp *);
    149 
    150 void	sysmon_power_settype(const char *);
    151 
    152 int	sysmon_pswitch_register(struct sysmon_pswitch *);
    153 void	sysmon_pswitch_unregister(struct sysmon_pswitch *);
    154 
    155 void	sysmon_pswitch_event(struct sysmon_pswitch *, int);
    156 void	sysmon_penvsys_event(struct penvsys_state *, int);
    157 
    158 void	sysmon_power_init(void);
    159 
    160 #endif /* _DEV_SYSMON_SYSMONVAR_H_ */
    161