/* $NetBSD: sysmonvar.h,v 1.49 2015/04/23 23:22:03 pgoyette Exp $ */ /*- * Copyright (c) 2000 Zembu Labs, Inc. * All rights reserved. * * Author: Jason R. Thorpe * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Zembu Labs, Inc. * 4. Neither the name of Zembu Labs nor the names of its employees may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR- * RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS- * CLAIMED. IN NO EVENT SHALL ZEMBU LABS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _DEV_SYSMON_SYSMONVAR_H_ #define _DEV_SYSMON_SYSMONVAR_H_ #include #include #include #include #include #include #include #include #include struct lwp; struct proc; struct knote; struct uio; struct workqueue; #define SYSMON_MINOR_ENVSYS 0 #define SYSMON_MINOR_WDOG 1 #define SYSMON_MINOR_POWER 2 /***************************************************************************** * Environmental sensor support *****************************************************************************/ /* * Thresholds/limits that are being monitored */ enum envsys_lims { ENVSYS_LIM_CRITMAX, ENVSYS_LIM_WARNMAX, ENVSYS_LIM_WARNMIN, ENVSYS_LIM_CRITMIN, ENVSYS_LIM_LASTLIM }; struct sysmon_envsys_lim { int32_t critmax; int32_t warnmax; int32_t warnmin; int32_t critmin; }; typedef union { int32_t sel_limit_list[ENVSYS_LIM_LASTLIM]; struct sysmon_envsys_lim sel_limits; } sysmon_envsys_lim_t; #define sel_critmax sel_limits.critmax #define sel_warnmax sel_limits.warnmax #define sel_warnmin sel_limits.warnmin #define sel_critmin sel_limits.critmin /* struct used by a sensor */ struct envsys_data { TAILQ_ENTRY(envsys_data) sensors_head; uint32_t sensor; /* sensor number */ uint32_t units; /* type of sensor */ uint32_t state; /* sensor state */ uint32_t flags; /* sensor flags */ uint32_t rpms; /* for fans, nominal RPMs */ int32_t rfact; /* for volts, factor x 10^4 */ int32_t value_cur; /* current value */ int32_t value_prev; /* previous value */ int32_t value_max; /* max value */ int32_t value_min; /* min value */ int32_t private; /* private data for drivers */ sysmon_envsys_lim_t limits; /* thresholds for monitoring */ uint32_t upropset; /* userland property set? */ krndsource_t rnd_src; /* source element for rnd(4) */ char desc[ENVSYS_DESCLEN]; /* sensor description */ }; typedef struct envsys_data envsys_data_t; /* sensor flags */ #define ENVSYS_FPERCENT 0x00000001 /* sensor wants a percentage */ #define ENVSYS_FVALID_MAX 0x00000002 /* max value is ok */ #define ENVSYS_FVALID_MIN 0x00000004 /* min value is ok */ #define ENVSYS_F_OBSOLETE 0x00000008 #define ENVSYS_FCHANGERFACT 0x00000010 /* sensor can change rfact */ /* monitoring flags */ #define ENVSYS_FMONCRITICAL 0x00000020 /* monitor a critical state */ #define ENVSYS_FMONLIMITS 0x00000040 /* monitor limits/thresholds */ #define ENVSYS_FMONSTCHANGED 0x00000400 /* monitor a battery/drive state */ #define ENVSYS_FMONANY \ (ENVSYS_FMONCRITICAL | ENVSYS_FMONLIMITS | ENVSYS_FMONSTCHANGED) #define ENVSYS_FMONNOTSUPP 0x00000800 /* monitoring not supported */ #define ENVSYS_FNEED_REFRESH 0x00001000 /* sensor needs refreshing */ #define ENVSYS_FHAS_ENTROPY 0x00002000 /* sensor provides entropy for rnd(4) */ /* * Properties that can be set in upropset (and in the event_limit's * flags field) */ #define PROP_CRITMAX 0x0001 #define PROP_CRITMIN 0x0002 #define PROP_WARNMAX 0x0004 #define PROP_WARNMIN 0x0008 #define PROP_BATTCAP 0x0010 #define PROP_BATTWARN 0x0020 #define PROP_BATTHIGH 0x0040 #define PROP_BATTMAX 0x0080 #define PROP_DESC 0x0100 #define PROP_RFACT 0x0200 #define PROP_DRIVER_LIMITS 0x8000 #define PROP_CAP_LIMITS (PROP_BATTCAP | PROP_BATTWARN | \ PROP_BATTHIGH | PROP_BATTMAX) #define PROP_VAL_LIMITS (PROP_CRITMAX | PROP_CRITMIN | \ PROP_WARNMAX | PROP_WARNMIN) #define PROP_LIMITS (PROP_CAP_LIMITS | PROP_VAL_LIMITS) struct sme_event; struct sysmon_envsys { const char *sme_name; /* envsys device name */ u_int sme_nsensors; /* sensors count, from driver */ u_int sme_fsensor; /* sensor index base, from sysmon */ #define SME_SENSOR_IDX(sme, idx) ((idx) - (sme)->sme_fsensor) int sme_class; /* class of device */ #define SME_CLASS_BATTERY 1 /* device is a battery */ #define SME_CLASS_ACADAPTER 2 /* device is an AC adapter */ int sme_flags; /* additional flags */ #define SME_FLAG_BUSY 0x00000001 /* device busy */ #define SME_DISABLE_REFRESH 0x00000002 /* disable sme_refresh */ #define SME_CALLOUT_INITIALIZED 0x00000004 /* callout was initialized */ #define SME_INIT_REFRESH 0x00000008 /* call sme_refresh() after interrupts are enabled in the autoconf(9) process. */ #define SME_POLL_ONLY 0x00000010 /* only poll sme_refresh */ void *sme_cookie; /* for ENVSYS back-end */ /* * Function callback to receive data from device. */ void (*sme_refresh)(struct sysmon_envsys *, envsys_data_t *); /* * Function callbacks to exchange limit/threshold values * with device */ void (*sme_set_limits)(struct sysmon_envsys *, envsys_data_t *, sysmon_envsys_lim_t *, uint32_t *); void (*sme_get_limits)(struct sysmon_envsys *, envsys_data_t *, sysmon_envsys_lim_t *, uint32_t *); struct workqueue *sme_wq; /* the workqueue for the events */ struct callout sme_callout; /* for the events */ uint64_t sme_events_timeout; /* the timeout used in the callout */ /* * linked list for the sysmon envsys devices. */ LIST_ENTRY(sysmon_envsys) sme_list; /* * linked list for the events that a device maintains. */ LIST_HEAD(, sme_event) sme_events_list; /* * tailq for the sensors that a device maintains. */ TAILQ_HEAD(, envsys_data) sme_sensors_list; /* * Locking/synchronization. */ int sme_busy; /* number of items on workqueue, sme_mtx or sme_work_mtx to read, both to write */ kmutex_t sme_mtx; kmutex_t sme_work_mtx; kcondvar_t sme_condvar; }; int sysmonopen_envsys(dev_t, int, int, struct lwp *); int sysmonclose_envsys(dev_t, int, int, struct lwp *); int sysmonioctl_envsys(dev_t, u_long, void *, int, struct lwp *); struct sysmon_envsys *sysmon_envsys_create(void); void sysmon_envsys_destroy(struct sysmon_envsys *); int sysmon_envsys_register(struct sysmon_envsys *); void sysmon_envsys_unregister(struct sysmon_envsys *); int sysmon_envsys_sensor_attach(struct sysmon_envsys *, envsys_data_t *); int sysmon_envsys_sensor_detach(struct sysmon_envsys *, envsys_data_t *); uint32_t sysmon_envsys_get_max_value(bool (*)(const envsys_data_t*), bool); void sysmon_envsys_sensor_event(struct sysmon_envsys *, envsys_data_t *, int); void sysmon_envsys_refresh_sensor(struct sysmon_envsys *, envsys_data_t *); typedef bool (*sysmon_envsys_callback_t)(const struct sysmon_envsys *, const envsys_data_t *, void*); void sysmon_envsys_foreach_sensor(sysmon_envsys_callback_t, void *, bool); int sysmon_envsys_update_limits(struct sysmon_envsys *, envsys_data_t *); int sysmon_envsys_init(void); int sysmon_envsys_fini(void); /***************************************************************************** * Watchdog timer support *****************************************************************************/ struct sysmon_wdog { const char *smw_name; /* watchdog device name */ LIST_ENTRY(sysmon_wdog) smw_list; void *smw_cookie; /* for watchdog back-end */ int (*smw_setmode)(struct sysmon_wdog *); int (*smw_tickle)(struct sysmon_wdog *); u_int smw_period; /* timer period (in seconds) */ int smw_mode; /* timer mode */ u_int smw_refcnt; /* references */ pid_t smw_tickler; /* last process to tickle */ }; int sysmonopen_wdog(dev_t, int, int, struct lwp *); int sysmonclose_wdog(dev_t, int, int, struct lwp *); int sysmonioctl_wdog(dev_t, u_long, void *, int, struct lwp *); int sysmon_wdog_setmode(struct sysmon_wdog *, int, u_int); int sysmon_wdog_register(struct sysmon_wdog *); int sysmon_wdog_unregister(struct sysmon_wdog *); int sysmon_wdog_init(void); int sysmon_wdog_fini(void); /***************************************************************************** * Power management support *****************************************************************************/ struct sysmon_pswitch { const char *smpsw_name; /* power switch name */ int smpsw_type; /* power switch type */ LIST_ENTRY(sysmon_pswitch) smpsw_list; }; int sysmonopen_power(dev_t, int, int, struct lwp *); int sysmonclose_power(dev_t, int, int, struct lwp *); int sysmonread_power(dev_t, struct uio *, int); int sysmonpoll_power(dev_t, int, struct lwp *); int sysmonkqfilter_power(dev_t, struct knote *); int sysmonioctl_power(dev_t, u_long, void *, int, struct lwp *); void sysmon_power_settype(const char *); int sysmon_pswitch_register(struct sysmon_pswitch *); void sysmon_pswitch_unregister(struct sysmon_pswitch *); void sysmon_pswitch_event(struct sysmon_pswitch *, int); void sysmon_penvsys_event(struct penvsys_state *, int); int sysmon_power_init(void); int sysmon_power_fini(void); /* * Interface to sysmon common code used for autoloading */ struct sysmon_opvec { int (*so_open)(dev_t, int, int, struct lwp*); int (*so_close)(dev_t, int, int, struct lwp*); int (*so_ioctl)(dev_t, u_long, void *, int, struct lwp*); int (*so_read)(dev_t, struct uio*, int); int (*so_poll)(dev_t, int, struct lwp*); int (*so_filter)(dev_t, struct knote*); }; int sysmon_init(void); int sysmon_fini(void); int sysmon_attach_minor(int, struct sysmon_opvec*); #endif /* _DEV_SYSMON_SYSMONVAR_H_ */