1 /* $NetBSD: sysmonvar.h,v 1.26 2008/04/04 10:10:20 hannken Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 Zembu Labs, Inc. 5 * All rights reserved. 6 * 7 * Author: Jason R. Thorpe <thorpej@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 struct sme_sensor_names; 64 65 struct sysmon_envsys { 66 const char *sme_name; /* envsys device name */ 67 u_int sme_nsensors; /* sensors count, from driver */ 68 u_int sme_fsensor; /* sensor index base, from sysmon */ 69 #define SME_SENSOR_IDX(sme, idx) ((idx) - (sme)->sme_fsensor) 70 int sme_class; /* class of device */ 71 #define SME_CLASS_BATTERY 1 /* device is a battery */ 72 #define SME_CLASS_ACADAPTER 2 /* device is an AC adapter */ 73 int sme_flags; /* additional flags */ 74 #define SME_FLAG_BUSY 0x00000001 /* device busy */ 75 #define SME_DISABLE_REFRESH 0x00000002 /* disable sme_refresh */ 76 #define SME_CALLOUT_INITIALIZED 0x00000004 /* callout was initialized */ 77 #define SME_INIT_REFRESH 0x00000008 /* call sme_refresh() after 78 interrupts are enabled in 79 the autoconf(9) process. */ 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 struct workqueue *sme_wq; /* the workqueue for the events */ 89 struct callout sme_callout; /* for the events */ 90 uint64_t sme_events_timeout; /* the timeout used in the callout */ 91 92 /* 93 * linked list for the sysmon envsys devices. 94 */ 95 LIST_ENTRY(sysmon_envsys) sme_list; 96 97 /* 98 * linked list for the events that a device maintains. 99 */ 100 LIST_HEAD(, sme_event) sme_events_list; 101 102 /* 103 * tailq for the sensors that a device maintains. 104 */ 105 TAILQ_HEAD(, envsys_data) sme_sensors_list; 106 107 /* 108 * Locking/synchronization. 109 */ 110 kmutex_t sme_mtx; 111 kmutex_t sme_callout_mtx; 112 kcondvar_t sme_condvar; 113 }; 114 115 int sysmonopen_envsys(dev_t, int, int, struct lwp *); 116 int sysmonclose_envsys(dev_t, int, int, struct lwp *); 117 int sysmonioctl_envsys(dev_t, u_long, void *, int, struct lwp *); 118 119 struct sysmon_envsys *sysmon_envsys_create(void); 120 void sysmon_envsys_destroy(struct sysmon_envsys *); 121 122 int sysmon_envsys_register(struct sysmon_envsys *); 123 void sysmon_envsys_unregister(struct sysmon_envsys *); 124 125 int sysmon_envsys_sensor_attach(struct sysmon_envsys *, envsys_data_t *); 126 int sysmon_envsys_sensor_detach(struct sysmon_envsys *, envsys_data_t *); 127 128 void sysmon_envsys_init(void); 129 130 /***************************************************************************** 131 * Watchdog timer support 132 *****************************************************************************/ 133 134 struct sysmon_wdog { 135 const char *smw_name; /* watchdog device name */ 136 137 LIST_ENTRY(sysmon_wdog) smw_list; 138 139 void *smw_cookie; /* for watchdog back-end */ 140 int (*smw_setmode)(struct sysmon_wdog *); 141 int (*smw_tickle)(struct sysmon_wdog *); 142 u_int smw_period; /* timer period (in seconds) */ 143 int smw_mode; /* timer mode */ 144 u_int smw_refcnt; /* references */ 145 pid_t smw_tickler; /* last process to tickle */ 146 }; 147 148 int sysmonopen_wdog(dev_t, int, int, struct lwp *); 149 int sysmonclose_wdog(dev_t, int, int, struct lwp *); 150 int sysmonioctl_wdog(dev_t, u_long, void *, int, struct lwp *); 151 152 int sysmon_wdog_register(struct sysmon_wdog *); 153 int sysmon_wdog_unregister(struct sysmon_wdog *); 154 155 void sysmon_wdog_init(void); 156 157 /***************************************************************************** 158 * Power management support 159 *****************************************************************************/ 160 161 struct sysmon_pswitch { 162 const char *smpsw_name; /* power switch name */ 163 int smpsw_type; /* power switch type */ 164 165 LIST_ENTRY(sysmon_pswitch) smpsw_list; 166 }; 167 168 int sysmonopen_power(dev_t, int, int, struct lwp *); 169 int sysmonclose_power(dev_t, int, int, struct lwp *); 170 int sysmonread_power(dev_t, struct uio *, int); 171 int sysmonpoll_power(dev_t, int, struct lwp *); 172 int sysmonkqfilter_power(dev_t, struct knote *); 173 int sysmonioctl_power(dev_t, u_long, void *, int, struct lwp *); 174 175 void sysmon_power_settype(const char *); 176 177 int sysmon_pswitch_register(struct sysmon_pswitch *); 178 void sysmon_pswitch_unregister(struct sysmon_pswitch *); 179 180 void sysmon_pswitch_event(struct sysmon_pswitch *, int); 181 void sysmon_penvsys_event(struct penvsys_state *, int); 182 183 void sysmon_power_init(void); 184 185 #endif /* _DEV_SYSMON_SYSMONVAR_H_ */ 186