sysmonvar.h revision 1.28
1 /* $NetBSD: sysmonvar.h,v 1.28 2009/06/13 16:08:25 pgoyette 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/param.h> 40 #include <sys/envsys.h> 41 #include <sys/wdog.h> 42 #include <sys/power.h> 43 #include <sys/queue.h> 44 #include <sys/callout.h> 45 #include <sys/mutex.h> 46 #include <sys/condvar.h> 47 48 struct lwp; 49 struct proc; 50 struct knote; 51 struct uio; 52 struct workqueue; 53 54 #define SYSMON_MINOR_ENVSYS 0 55 #define SYSMON_MINOR_WDOG 1 56 #define SYSMON_MINOR_POWER 2 57 58 /***************************************************************************** 59 * Environmental sensor support 60 *****************************************************************************/ 61 62 struct sme_event; 63 64 struct sysmon_envsys { 65 const char *sme_name; /* envsys device name */ 66 u_int sme_nsensors; /* sensors count, from driver */ 67 u_int sme_fsensor; /* sensor index base, from sysmon */ 68 #define SME_SENSOR_IDX(sme, idx) ((idx) - (sme)->sme_fsensor) 69 int sme_class; /* class of device */ 70 #define SME_CLASS_BATTERY 1 /* device is a battery */ 71 #define SME_CLASS_ACADAPTER 2 /* device is an AC adapter */ 72 int sme_flags; /* additional flags */ 73 #define SME_FLAG_BUSY 0x00000001 /* device busy */ 74 #define SME_DISABLE_REFRESH 0x00000002 /* disable sme_refresh */ 75 #define SME_CALLOUT_INITIALIZED 0x00000004 /* callout was initialized */ 76 #define SME_INIT_REFRESH 0x00000008 /* call sme_refresh() after 77 interrupts are enabled in 78 the autoconf(9) process. */ 79 #define SME_POLL_ONLY 0x00000010 /* only poll sme_refresh */ 80 81 void *sme_cookie; /* for ENVSYS back-end */ 82 83 /* 84 * Function callback to receive data from device. 85 */ 86 void (*sme_refresh)(struct sysmon_envsys *, envsys_data_t *); 87 88 /* 89 * Function callbacks to exchange limit/threshold values 90 * with device 91 */ 92 void (*sme_set_limits)(struct sysmon_envsys *, sysmon_envsys_lim_t *); 93 void (*sme_get_limits)(struct sysmon_envsys *, sysmon_envsys_lim_t *); 94 95 struct workqueue *sme_wq; /* the workqueue for the events */ 96 struct callout sme_callout; /* for the events */ 97 uint64_t sme_events_timeout; /* the timeout used in the callout */ 98 99 /* 100 * linked list for the sysmon envsys devices. 101 */ 102 LIST_ENTRY(sysmon_envsys) sme_list; 103 104 /* 105 * linked list for the events that a device maintains. 106 */ 107 LIST_HEAD(, sme_event) sme_events_list; 108 109 /* 110 * tailq for the sensors that a device maintains. 111 */ 112 TAILQ_HEAD(, envsys_data) sme_sensors_list; 113 114 /* 115 * Locking/synchronization. 116 */ 117 kmutex_t sme_mtx; 118 kmutex_t sme_callout_mtx; 119 kcondvar_t sme_condvar; 120 }; 121 122 int sysmonopen_envsys(dev_t, int, int, struct lwp *); 123 int sysmonclose_envsys(dev_t, int, int, struct lwp *); 124 int sysmonioctl_envsys(dev_t, u_long, void *, int, struct lwp *); 125 126 struct sysmon_envsys *sysmon_envsys_create(void); 127 void sysmon_envsys_destroy(struct sysmon_envsys *); 128 129 int sysmon_envsys_register(struct sysmon_envsys *); 130 void sysmon_envsys_unregister(struct sysmon_envsys *); 131 132 int sysmon_envsys_sensor_attach(struct sysmon_envsys *, envsys_data_t *); 133 int sysmon_envsys_sensor_detach(struct sysmon_envsys *, envsys_data_t *); 134 135 void sysmon_envsys_init(void); 136 137 /***************************************************************************** 138 * Watchdog timer support 139 *****************************************************************************/ 140 141 struct sysmon_wdog { 142 const char *smw_name; /* watchdog device name */ 143 144 LIST_ENTRY(sysmon_wdog) smw_list; 145 146 void *smw_cookie; /* for watchdog back-end */ 147 int (*smw_setmode)(struct sysmon_wdog *); 148 int (*smw_tickle)(struct sysmon_wdog *); 149 u_int smw_period; /* timer period (in seconds) */ 150 int smw_mode; /* timer mode */ 151 u_int smw_refcnt; /* references */ 152 pid_t smw_tickler; /* last process to tickle */ 153 }; 154 155 int sysmonopen_wdog(dev_t, int, int, struct lwp *); 156 int sysmonclose_wdog(dev_t, int, int, struct lwp *); 157 int sysmonioctl_wdog(dev_t, u_long, void *, int, struct lwp *); 158 159 int sysmon_wdog_register(struct sysmon_wdog *); 160 int sysmon_wdog_unregister(struct sysmon_wdog *); 161 162 void sysmon_wdog_init(void); 163 164 /***************************************************************************** 165 * Power management support 166 *****************************************************************************/ 167 168 struct sysmon_pswitch { 169 const char *smpsw_name; /* power switch name */ 170 int smpsw_type; /* power switch type */ 171 172 LIST_ENTRY(sysmon_pswitch) smpsw_list; 173 }; 174 175 int sysmonopen_power(dev_t, int, int, struct lwp *); 176 int sysmonclose_power(dev_t, int, int, struct lwp *); 177 int sysmonread_power(dev_t, struct uio *, int); 178 int sysmonpoll_power(dev_t, int, struct lwp *); 179 int sysmonkqfilter_power(dev_t, struct knote *); 180 int sysmonioctl_power(dev_t, u_long, void *, int, struct lwp *); 181 182 void sysmon_power_settype(const char *); 183 184 int sysmon_pswitch_register(struct sysmon_pswitch *); 185 void sysmon_pswitch_unregister(struct sysmon_pswitch *); 186 187 void sysmon_pswitch_event(struct sysmon_pswitch *, int); 188 void sysmon_penvsys_event(struct penvsys_state *, int); 189 190 void sysmon_power_init(void); 191 192 #endif /* _DEV_SYSMON_SYSMONVAR_H_ */ 193
Indexes created Tue Sep 23 14:10:03 GMT 2025