summaryrefslogtreecommitdiffstats
path: root/sys/kern/kern_sensors.c
diff options
context:
space:
mode:
Diffstat (limited to 'sys/kern/kern_sensors.c')
-rw-r--r--sys/kern/kern_sensors.c421
1 files changed, 0 insertions, 421 deletions
diff --git a/sys/kern/kern_sensors.c b/sys/kern/kern_sensors.c
deleted file mode 100644
index 2ffbad2..0000000
--- a/sys/kern/kern_sensors.c
+++ /dev/null
@@ -1,421 +0,0 @@
-/* $FreeBSD$ */
-/* $OpenBSD: kern_sensors.c,v 1.19 2007/06/04 18:42:05 deraadt Exp $ */
-/* $OpenBSD: kern_sysctl.c,v 1.154 2007/06/01 17:29:10 beck Exp $ */
-
-/*-
- * Copyright (c) 2005 David Gwynne <dlg@openbsd.org>
- * Copyright (c) 2006 Constantine A. Murenin <cnst+openbsd@bugmail.mojo.ru>
- * Copyright (c) 2007 Constantine A. Murenin <cnst+GSoC2007@FreeBSD.org>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/kthread.h>
-#include <sys/queue.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/lock.h>
-#include <sys/mutex.h>
-
-#include <sys/sysctl.h>
-#include <sys/sensors.h>
-
-int sensordev_count = 0;
-SLIST_HEAD(, ksensordev) sensordev_list = SLIST_HEAD_INITIALIZER(sensordev_list);
-
-struct ksensordev *sensordev_get(int);
-struct ksensor *sensor_find(struct ksensordev *, enum sensor_type, int);
-
-struct sensor_task {
- void *arg;
- void (*func)(void *);
-
- int period;
- time_t nextrun;
- volatile int running;
- TAILQ_ENTRY(sensor_task) entry;
-};
-
-void sensor_task_thread(void *);
-void sensor_task_schedule(struct sensor_task *);
-
-TAILQ_HEAD(, sensor_task) tasklist = TAILQ_HEAD_INITIALIZER(tasklist);
-
-#ifndef NOSYSCTL8HACK
-void sensor_sysctl8magic_install(struct ksensordev *);
-void sensor_sysctl8magic_deinstall(struct ksensordev *);
-#endif
-
-void
-sensordev_install(struct ksensordev *sensdev)
-{
- struct ksensordev *v, *nv;
-
- mtx_lock(&Giant);
- if (sensordev_count == 0) {
- sensdev->num = 0;
- SLIST_INSERT_HEAD(&sensordev_list, sensdev, list);
- } else {
- for (v = SLIST_FIRST(&sensordev_list);
- (nv = SLIST_NEXT(v, list)) != NULL; v = nv)
- if (nv->num - v->num > 1)
- break;
- sensdev->num = v->num + 1;
- SLIST_INSERT_AFTER(v, sensdev, list);
- }
- sensordev_count++;
- mtx_unlock(&Giant);
-
-#ifndef NOSYSCTL8HACK
- sensor_sysctl8magic_install(sensdev);
-#endif
-}
-
-void
-sensor_attach(struct ksensordev *sensdev, struct ksensor *sens)
-{
- struct ksensor *v, *nv;
- struct ksensors_head *sh;
- int i;
-
- mtx_lock(&Giant);
- sh = &sensdev->sensors_list;
- if (sensdev->sensors_count == 0) {
- for (i = 0; i < SENSOR_MAX_TYPES; i++)
- sensdev->maxnumt[i] = 0;
- sens->numt = 0;
- SLIST_INSERT_HEAD(sh, sens, list);
- } else {
- for (v = SLIST_FIRST(sh);
- (nv = SLIST_NEXT(v, list)) != NULL; v = nv)
- if (v->type == sens->type && (v->type != nv->type ||
- (v->type == nv->type && nv->numt - v->numt > 1)))
- break;
- /* sensors of the same type go after each other */
- if (v->type == sens->type)
- sens->numt = v->numt + 1;
- else
- sens->numt = 0;
- SLIST_INSERT_AFTER(v, sens, list);
- }
- /* we only increment maxnumt[] if the sensor was added
- * to the last position of sensors of this type
- */
- if (sensdev->maxnumt[sens->type] == sens->numt)
- sensdev->maxnumt[sens->type]++;
- sensdev->sensors_count++;
- mtx_unlock(&Giant);
-}
-
-void
-sensordev_deinstall(struct ksensordev *sensdev)
-{
- mtx_lock(&Giant);
- sensordev_count--;
- SLIST_REMOVE(&sensordev_list, sensdev, ksensordev, list);
- mtx_unlock(&Giant);
-
-#ifndef NOSYSCTL8HACK
- sensor_sysctl8magic_deinstall(sensdev);
-#endif
-}
-
-void
-sensor_detach(struct ksensordev *sensdev, struct ksensor *sens)
-{
- struct ksensors_head *sh;
-
- mtx_lock(&Giant);
- sh = &sensdev->sensors_list;
- sensdev->sensors_count--;
- SLIST_REMOVE(sh, sens, ksensor, list);
- /* we only decrement maxnumt[] if this is the tail
- * sensor of this type
- */
- if (sens->numt == sensdev->maxnumt[sens->type] - 1)
- sensdev->maxnumt[sens->type]--;
- mtx_unlock(&Giant);
-}
-
-struct ksensordev *
-sensordev_get(int num)
-{
- struct ksensordev *sd;
-
- SLIST_FOREACH(sd, &sensordev_list, list)
- if (sd->num == num)
- return (sd);
-
- return (NULL);
-}
-
-struct ksensor *
-sensor_find(struct ksensordev *sensdev, enum sensor_type type, int numt)
-{
- struct ksensor *s;
- struct ksensors_head *sh;
-
- sh = &sensdev->sensors_list;
- SLIST_FOREACH(s, sh, list)
- if (s->type == type && s->numt == numt)
- return (s);
-
- return (NULL);
-}
-
-int
-sensor_task_register(void *arg, void (*func)(void *), int period)
-{
- struct sensor_task *st;
- int create_thread = 0;
-
- st = malloc(sizeof(struct sensor_task), M_DEVBUF, M_NOWAIT);
- if (st == NULL)
- return (1);
-
- st->arg = arg;
- st->func = func;
- st->period = period;
-
- st->running = 1;
-
- if (TAILQ_EMPTY(&tasklist))
- create_thread = 1;
-
- st->nextrun = 0;
- TAILQ_INSERT_HEAD(&tasklist, st, entry);
-
- if (create_thread)
- if (kthread_create(sensor_task_thread, NULL, NULL, 0, 0,
- "sensors") != 0)
- panic("sensors kthread");
-
- wakeup(&tasklist);
-
- return (0);
-}
-
-void
-sensor_task_unregister(void *arg)
-{
- struct sensor_task *st;
-
- TAILQ_FOREACH(st, &tasklist, entry)
- if (st->arg == arg)
- st->running = 0;
-}
-
-void
-sensor_task_thread(void *arg)
-{
- struct sensor_task *st, *nst;
- time_t now;
-
- while (!TAILQ_EMPTY(&tasklist)) {
- while ((nst = TAILQ_FIRST(&tasklist))->nextrun >
- (now = time_uptime))
- tsleep(&tasklist, PWAIT, "timeout",
- (nst->nextrun - now) * hz);
-
- while ((st = nst) != NULL) {
- nst = TAILQ_NEXT(st, entry);
-
- if (st->nextrun > now)
- break;
-
- /* take it out while we work on it */
- TAILQ_REMOVE(&tasklist, st, entry);
-
- if (!st->running) {
- free(st, M_DEVBUF);
- continue;
- }
-
- /* run the task */
- st->func(st->arg);
- /* stick it back in the tasklist */
- sensor_task_schedule(st);
- }
- }
-
- kthread_exit(0);
-}
-
-void
-sensor_task_schedule(struct sensor_task *st)
-{
- struct sensor_task *cst;
-
- st->nextrun = time_uptime + st->period;
-
- TAILQ_FOREACH(cst, &tasklist, entry) {
- if (cst->nextrun > st->nextrun) {
- TAILQ_INSERT_BEFORE(cst, st, entry);
- return;
- }
- }
-
- /* must be an empty list, or at the end of the list */
- TAILQ_INSERT_TAIL(&tasklist, st, entry);
-}
-
-/*
- * sysctl glue code
- */
-int sysctl_handle_sensordev(SYSCTL_HANDLER_ARGS);
-int sysctl_handle_sensor(SYSCTL_HANDLER_ARGS);
-int sysctl_sensors_handler(SYSCTL_HANDLER_ARGS);
-
-
-#ifndef NOSYSCTL8HACK
-
-SYSCTL_NODE(_hw, OID_AUTO, sensors, CTLFLAG_RD, NULL,
- "Hardware Sensors sysctl internal magic");
-SYSCTL_NODE(_hw, HW_SENSORS, _sensors, CTLFLAG_RD, sysctl_sensors_handler,
- "Hardware Sensors XP MIB interface");
-
-#else /* NOSYSCTL8HACK */
-
-SYSCTL_NODE(_hw, HW_SENSORS, sensors, CTLFLAG_RD, sysctl_sensors_handler,
- "Hardware Sensors");
-
-#endif /* !NOSYSCTL8HACK */
-
-
-#ifndef NOSYSCTL8HACK
-
-/*
- * XXX:
- * FreeBSD's sysctl(9) .oid_handler functionality is not accustomed
- * for the CTLTYPE_NODE handler to handle the undocumented sysctl
- * magic calls. As soon as such functionality is developed,
- * sysctl_sensors_handler() should be converted to handle all such
- * calls, and these sysctl_add_oid(9) calls should be removed
- * "with a big axe". This whole sysctl_add_oid(9) business is solely
- * to please sysctl(8).
- */
-
-void
-sensor_sysctl8magic_install(struct ksensordev *sensdev)
-{
- struct sysctl_oid_list *ol;
- struct sysctl_ctx_list *cl = &sensdev->clist;
- struct ksensor *s;
- struct ksensors_head *sh = &sensdev->sensors_list;
-
- sysctl_ctx_init(cl);
- ol = SYSCTL_CHILDREN(SYSCTL_ADD_NODE(cl, &SYSCTL_NODE_CHILDREN(_hw,
- sensors), sensdev->num, sensdev->xname, CTLFLAG_RD, NULL, ""));
- SLIST_FOREACH(s, sh, list) {
- char n[32];
-
- snprintf(n, sizeof(n), "%s%d", sensor_type_s[s->type], s->numt);
- SYSCTL_ADD_PROC(cl, ol, OID_AUTO, n, CTLTYPE_STRUCT |
- CTLFLAG_RD, s, 0, sysctl_handle_sensor, "S,sensor", "");
- }
-}
-
-void
-sensor_sysctl8magic_deinstall(struct ksensordev *sensdev)
-{
- struct sysctl_ctx_list *cl = &sensdev->clist;
-
- sysctl_ctx_free(cl);
-}
-
-#endif /* !NOSYSCTL8HACK */
-
-
-int
-sysctl_handle_sensordev(SYSCTL_HANDLER_ARGS)
-{
- struct ksensordev *ksd = arg1;
- struct sensordev *usd;
- int error;
-
- if (req->newptr)
- return (EPERM);
-
- /* Grab a copy, to clear the kernel pointers */
- usd = malloc(sizeof(*usd), M_TEMP, M_WAITOK);
- bzero(usd, sizeof(*usd));
- usd->num = ksd->num;
- strlcpy(usd->xname, ksd->xname, sizeof(usd->xname));
- memcpy(usd->maxnumt, ksd->maxnumt, sizeof(usd->maxnumt));
- usd->sensors_count = ksd->sensors_count;
-
- error = SYSCTL_OUT(req, usd, sizeof(struct sensordev));
-
- free(usd, M_TEMP);
- return (error);
-}
-
-int
-sysctl_handle_sensor(SYSCTL_HANDLER_ARGS)
-{
- struct ksensor *ks = arg1;
- struct sensor *us;
- int error;
-
- if (req->newptr)
- return (EPERM);
-
- /* Grab a copy, to clear the kernel pointers */
- us = malloc(sizeof(*us), M_TEMP, M_WAITOK);
- bzero(us, sizeof(*us));
- memcpy(us->desc, ks->desc, sizeof(ks->desc));
- us->tv = ks->tv;
- us->value = ks->value;
- us->type = ks->type;
- us->status = ks->status;
- us->numt = ks->numt;
- us->flags = ks->flags;
-
- error = SYSCTL_OUT(req, us, sizeof(struct sensor));
-
- free(us, M_TEMP);
- return (error);
-}
-
-int
-sysctl_sensors_handler(SYSCTL_HANDLER_ARGS)
-{
- int *name = arg1;
- u_int namelen = arg2;
- struct ksensordev *ksd;
- struct ksensor *ks;
- int dev, numt;
- enum sensor_type type;
-
- if (namelen != 1 && namelen != 3)
- return (ENOTDIR);
-
- dev = name[0];
- if ((ksd = sensordev_get(dev)) == NULL)
- return (ENOENT);
- if (namelen == 1)
- return (sysctl_handle_sensordev(NULL, ksd, 0, req));
-
- type = name[1];
- numt = name[2];
- if ((ks = sensor_find(ksd, type, numt)) == NULL)
- return (ENOENT);
- return (sysctl_handle_sensor(NULL, ks, 0, req));
-}
OpenPOWER on IntegriCloud