acpi_thermal.c (aad970f1fee9a2a3e5a0f880be9b87c6193b3bd1) acpi_thermal.c (be2b179704218e240b66f023545f8e97d4c29a08)
1/*-
2 * Copyright (c) 2000, 2001 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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35#include <sys/bus.h>
36#include <sys/proc.h>
37#include <sys/reboot.h>
38#include <sys/sysctl.h>
39#include <sys/unistd.h>
40#include <sys/power.h>
41
42#include "acpi.h"
1/*-
2 * Copyright (c) 2000, 2001 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:

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35#include <sys/bus.h>
36#include <sys/proc.h>
37#include <sys/reboot.h>
38#include <sys/sysctl.h>
39#include <sys/unistd.h>
40#include <sys/power.h>
41
42#include "acpi.h"
43
44#include <dev/acpica/acpivar.h>
45
43#include <dev/acpica/acpivar.h>
44
46/*
47 * Hooks for the ACPI CA debugging infrastructure
48 */
45/* Hooks for the ACPI CA debugging infrastructure */
49#define _COMPONENT ACPI_THERMAL
50ACPI_MODULE_NAME("THERMAL")
51
52#define TZ_ZEROC 2732
53#define TZ_KELVTOC(x) (((x) - TZ_ZEROC) / 10), (((x) - TZ_ZEROC) % 10)
54
55#define TZ_NOTIFY_TEMPERATURE 0x80
56#define TZ_NOTIFY_DEVICES 0x81
57#define TZ_NOTIFY_LEVELS 0x82
58
46#define _COMPONENT ACPI_THERMAL
47ACPI_MODULE_NAME("THERMAL")
48
49#define TZ_ZEROC 2732
50#define TZ_KELVTOC(x) (((x) - TZ_ZEROC) / 10), (((x) - TZ_ZEROC) % 10)
51
52#define TZ_NOTIFY_TEMPERATURE 0x80
53#define TZ_NOTIFY_DEVICES 0x81
54#define TZ_NOTIFY_LEVELS 0x82
55
59#define TZ_POLLRATE 30 /* every 30 seconds by default */
56/* Check for temperature changes every 30 seconds by default */
57#define TZ_POLLRATE 30
60
58
61#define TZ_NUMLEVELS 10 /* defined by ACPI spec */
59/* ACPI spec defines this */
60#define TZ_NUMLEVELS 10
62struct acpi_tz_zone {
63 int ac[TZ_NUMLEVELS];
64 ACPI_BUFFER al[TZ_NUMLEVELS];
65 int crt;
66 int hot;
67 ACPI_BUFFER psl;
68 int psv;
69 int tc1;
70 int tc2;
71 int tsp;
72 int tzp;
73};
74
75
76struct acpi_tz_softc {
61struct acpi_tz_zone {
62 int ac[TZ_NUMLEVELS];
63 ACPI_BUFFER al[TZ_NUMLEVELS];
64 int crt;
65 int hot;
66 ACPI_BUFFER psl;
67 int psv;
68 int tc1;
69 int tc2;
70 int tsp;
71 int tzp;
72};
73
74
75struct acpi_tz_softc {
77 device_t tz_dev; /* device handle */
78 ACPI_HANDLE tz_handle; /* thermal zone handle */
79 int tz_temperature; /* current temperature */
80 int tz_active; /* current active cooling */
76 device_t tz_dev;
77 ACPI_HANDLE tz_handle; /*Thermal zone handle*/
78 int tz_temperature; /*Current temperature*/
79 int tz_active; /*Current active cooling*/
81#define TZ_ACTIVE_NONE -1
80#define TZ_ACTIVE_NONE -1
82 int tz_requested; /* user-requested minimum active cooling */
83 int tz_thflags; /* current temperature-related flags */
81 int tz_requested; /*Minimum active cooling*/
82 int tz_thflags; /*Current temp-related flags*/
84#define TZ_THFLAG_NONE 0
85#define TZ_THFLAG_PSV (1<<0)
86#define TZ_THFLAG_HOT (1<<2)
87#define TZ_THFLAG_CRT (1<<3)
88 int tz_flags;
83#define TZ_THFLAG_NONE 0
84#define TZ_THFLAG_PSV (1<<0)
85#define TZ_THFLAG_HOT (1<<2)
86#define TZ_THFLAG_CRT (1<<3)
87 int tz_flags;
89#define TZ_FLAG_NO_SCP (1<<0) /* no _SCP method */
90#define TZ_FLAG_GETPROFILE (1<<1) /* fetch power_profile in timeout */
91 struct timespec tz_cooling_started; /* current cooling starting time */
88#define TZ_FLAG_NO_SCP (1<<0) /*No _SCP method*/
89#define TZ_FLAG_GETPROFILE (1<<1) /*Get power_profile in timeout*/
90 struct timespec tz_cooling_started;
91 /*Current cooling starting time*/
92
92
93 struct sysctl_ctx_list tz_sysctl_ctx; /* sysctl tree */
93 struct sysctl_ctx_list tz_sysctl_ctx;
94 struct sysctl_oid *tz_sysctl_tree;
95
94 struct sysctl_oid *tz_sysctl_tree;
95
96 struct acpi_tz_zone tz_zone; /* thermal zone parameters */
96 struct acpi_tz_zone tz_zone; /*Thermal zone parameters*/
97 int tz_tmp_updating;
98};
99
100static int acpi_tz_probe(device_t dev);
101static int acpi_tz_attach(device_t dev);
102static int acpi_tz_establish(struct acpi_tz_softc *sc);
97 int tz_tmp_updating;
98};
99
100static int acpi_tz_probe(device_t dev);
101static int acpi_tz_attach(device_t dev);
102static int acpi_tz_establish(struct acpi_tz_softc *sc);
103static void acpi_tz_monitor(struct acpi_tz_softc *sc);
103static void acpi_tz_monitor(void *Context);
104static void acpi_tz_all_off(struct acpi_tz_softc *sc);
105static void acpi_tz_switch_cooler_off(ACPI_OBJECT *obj, void *arg);
106static void acpi_tz_switch_cooler_on(ACPI_OBJECT *obj, void *arg);
104static void acpi_tz_all_off(struct acpi_tz_softc *sc);
105static void acpi_tz_switch_cooler_off(ACPI_OBJECT *obj, void *arg);
106static void acpi_tz_switch_cooler_on(ACPI_OBJECT *obj, void *arg);
107static void acpi_tz_getparam(struct acpi_tz_softc *sc, char *node, int *data);
107static void acpi_tz_getparam(struct acpi_tz_softc *sc, char *node,
108 int *data);
108static void acpi_tz_sanity(struct acpi_tz_softc *sc, int *val, char *what);
109static int acpi_tz_active_sysctl(SYSCTL_HANDLER_ARGS);
109static void acpi_tz_sanity(struct acpi_tz_softc *sc, int *val, char *what);
110static int acpi_tz_active_sysctl(SYSCTL_HANDLER_ARGS);
110static void acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context);
111static void acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify,
112 void *context);
111static void acpi_tz_timeout(struct acpi_tz_softc *sc);
112static void acpi_tz_power_profile(void *arg);
113static void acpi_tz_timeout(struct acpi_tz_softc *sc);
114static void acpi_tz_power_profile(void *arg);
113
114static void acpi_tz_thread(void *arg);
115static void acpi_tz_thread(void *arg);
115static struct proc *acpi_tz_proc;
116
117static device_method_t acpi_tz_methods[] = {
118 /* Device interface */
119 DEVMETHOD(device_probe, acpi_tz_probe),
120 DEVMETHOD(device_attach, acpi_tz_attach),
121
122 {0, 0}
123};

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129};
130
131static devclass_t acpi_tz_devclass;
132DRIVER_MODULE(acpi_tz, acpi, acpi_tz_driver, acpi_tz_devclass, 0, 0);
133
134static struct sysctl_ctx_list acpi_tz_sysctl_ctx;
135static struct sysctl_oid *acpi_tz_sysctl_tree;
136
116
117static device_method_t acpi_tz_methods[] = {
118 /* Device interface */
119 DEVMETHOD(device_probe, acpi_tz_probe),
120 DEVMETHOD(device_attach, acpi_tz_attach),
121
122 {0, 0}
123};

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129};
130
131static devclass_t acpi_tz_devclass;
132DRIVER_MODULE(acpi_tz, acpi, acpi_tz_driver, acpi_tz_devclass, 0, 0);
133
134static struct sysctl_ctx_list acpi_tz_sysctl_ctx;
135static struct sysctl_oid *acpi_tz_sysctl_tree;
136
137static int acpi_tz_min_runtime = 0;/* minimum cooling run time */
137/* Minimum cooling run time */
138static int acpi_tz_min_runtime = 0;
138static int acpi_tz_polling_rate = TZ_POLLRATE;
139
139static int acpi_tz_polling_rate = TZ_POLLRATE;
140
141/* Timezone polling thread */
142static struct proc *acpi_tz_proc;
143
140/*
141 * Match an ACPI thermal zone.
142 */
143static int
144acpi_tz_probe(device_t dev)
145{
146 int result;
147 ACPI_LOCK_DECL;
148
149 ACPI_LOCK;
150
144/*
145 * Match an ACPI thermal zone.
146 */
147static int
148acpi_tz_probe(device_t dev)
149{
150 int result;
151 ACPI_LOCK_DECL;
152
153 ACPI_LOCK;
154
151 /* no FUNCTION_TRACE - too noisy */
155 /* No FUNCTION_TRACE - too noisy */
152
156
153 if ((acpi_get_type(dev) == ACPI_TYPE_THERMAL) &&
154 !acpi_disabled("thermal")) {
157 if (acpi_get_type(dev) == ACPI_TYPE_THERMAL && !acpi_disabled("thermal")) {
155 device_set_desc(dev, "thermal zone");
156 result = -10;
157 } else {
158 result = ENXIO;
159 }
160 ACPI_UNLOCK;
158 device_set_desc(dev, "thermal zone");
159 result = -10;
160 } else {
161 result = ENXIO;
162 }
163 ACPI_UNLOCK;
161 return(result);
164 return (result);
162}
163
164/*
165 * Attach to an ACPI thermal zone.
166 */
167static int
168acpi_tz_attach(device_t dev)
169{

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200 * Create our sysctl nodes.
201 *
202 * XXX we need a mechanism for adding nodes under ACPI.
203 */
204 if (device_get_unit(dev) == 0) {
205 acpi_sc = acpi_device_get_parent_softc(dev);
206 sysctl_ctx_init(&acpi_tz_sysctl_ctx);
207 acpi_tz_sysctl_tree = SYSCTL_ADD_NODE(&acpi_tz_sysctl_ctx,
165}
166
167/*
168 * Attach to an ACPI thermal zone.
169 */
170static int
171acpi_tz_attach(device_t dev)
172{

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203 * Create our sysctl nodes.
204 *
205 * XXX we need a mechanism for adding nodes under ACPI.
206 */
207 if (device_get_unit(dev) == 0) {
208 acpi_sc = acpi_device_get_parent_softc(dev);
209 sysctl_ctx_init(&acpi_tz_sysctl_ctx);
210 acpi_tz_sysctl_tree = SYSCTL_ADD_NODE(&acpi_tz_sysctl_ctx,
208 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
209 OID_AUTO, "thermal", CTLFLAG_RD, 0, "");
211 SYSCTL_CHILDREN(acpi_sc->acpi_sysctl_tree),
212 OID_AUTO, "thermal", CTLFLAG_RD, 0, "");
210 SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx,
211 SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
212 OID_AUTO, "min_runtime", CTLFLAG_RD | CTLFLAG_RW,
213 SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx,
214 SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
215 OID_AUTO, "min_runtime", CTLFLAG_RD | CTLFLAG_RW,
213 &acpi_tz_min_runtime, 0, "minimum cooling run time in sec");
216 &acpi_tz_min_runtime, 0,
217 "minimum cooling run time in sec");
214 SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx,
215 SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
216 OID_AUTO, "polling_rate", CTLFLAG_RD | CTLFLAG_RW,
217 &acpi_tz_polling_rate, 0, "monitor polling rate");
218 }
219 sysctl_ctx_init(&sc->tz_sysctl_ctx);
220 sprintf(oidname, "tz%d", device_get_unit(dev));
221 sc->tz_sysctl_tree = SYSCTL_ADD_NODE(&sc->tz_sysctl_ctx,
218 SYSCTL_ADD_INT(&acpi_tz_sysctl_ctx,
219 SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
220 OID_AUTO, "polling_rate", CTLFLAG_RD | CTLFLAG_RW,
221 &acpi_tz_polling_rate, 0, "monitor polling rate");
222 }
223 sysctl_ctx_init(&sc->tz_sysctl_ctx);
224 sprintf(oidname, "tz%d", device_get_unit(dev));
225 sc->tz_sysctl_tree = SYSCTL_ADD_NODE(&sc->tz_sysctl_ctx,
222 SYSCTL_CHILDREN(acpi_tz_sysctl_tree), OID_AUTO,
223 oidname, CTLFLAG_RD, 0, "");
226 SYSCTL_CHILDREN(acpi_tz_sysctl_tree),
227 OID_AUTO, oidname, CTLFLAG_RD, 0, "");
224 SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
225 OID_AUTO, "temperature", CTLFLAG_RD,
226 &sc->tz_temperature, 0, "current thermal zone temperature");
227 SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
228 OID_AUTO, "active", CTLTYPE_INT | CTLFLAG_RW,
229 sc, 0, acpi_tz_active_sysctl, "I", "");
230
231 SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),

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239 &sc->tz_zone.hot, 0, "");
240 SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
241 OID_AUTO, "_CRT", CTLFLAG_RD,
242 &sc->tz_zone.crt, 0, "");
243 SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
244 OID_AUTO, "_ACx", CTLFLAG_RD, &sc->tz_zone.ac,
245 sizeof(sc->tz_zone.ac), "I", "");
246
228 SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
229 OID_AUTO, "temperature", CTLFLAG_RD,
230 &sc->tz_temperature, 0, "current thermal zone temperature");
231 SYSCTL_ADD_PROC(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
232 OID_AUTO, "active", CTLTYPE_INT | CTLFLAG_RW,
233 sc, 0, acpi_tz_active_sysctl, "I", "");
234
235 SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),

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243 &sc->tz_zone.hot, 0, "");
244 SYSCTL_ADD_INT(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
245 OID_AUTO, "_CRT", CTLFLAG_RD,
246 &sc->tz_zone.crt, 0, "");
247 SYSCTL_ADD_OPAQUE(&sc->tz_sysctl_ctx, SYSCTL_CHILDREN(sc->tz_sysctl_tree),
248 OID_AUTO, "_ACx", CTLFLAG_RD, &sc->tz_zone.ac,
249 sizeof(sc->tz_zone.ac), "I", "");
250
247
248 /*
249 * Register our power profile event handler, and flag it for a manual
250 * invocation by our timeout. We defer it like this so that the rest
251 * of the subsystem has time to come up.
252 */
253 EVENTHANDLER_REGISTER(power_profile_change, acpi_tz_power_profile, sc, 0);
254 sc->tz_flags |= TZ_FLAG_GETPROFILE;
255

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261 /*
262 * Create our thread; we only need one, it will service all of the
263 * thermal zones.
264 */
265 if (acpi_tz_proc == NULL) {
266 error = kthread_create(acpi_tz_thread, NULL, &acpi_tz_proc,
267 RFHIGHPID, 0, "acpi_thermal");
268 if (error != 0) {
251 /*
252 * Register our power profile event handler, and flag it for a manual
253 * invocation by our timeout. We defer it like this so that the rest
254 * of the subsystem has time to come up.
255 */
256 EVENTHANDLER_REGISTER(power_profile_change, acpi_tz_power_profile, sc, 0);
257 sc->tz_flags |= TZ_FLAG_GETPROFILE;
258

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264 /*
265 * Create our thread; we only need one, it will service all of the
266 * thermal zones.
267 */
268 if (acpi_tz_proc == NULL) {
269 error = kthread_create(acpi_tz_thread, NULL, &acpi_tz_proc,
270 RFHIGHPID, 0, "acpi_thermal");
271 if (error != 0) {
269 device_printf(sc->tz_dev, "could not create thread - %d", error);
272 device_printf(sc->tz_dev, "could not create thread - %d",
273 error);
270 goto out;
271 }
272 }
273
274 out:
275 ACPI_UNLOCK;
276
274 goto out;
275 }
276 }
277
278 out:
279 ACPI_UNLOCK;
280
277 return_VALUE(error);
281 return_VALUE (error);
278}
279
280/*
281 * Parse the current state of this thermal zone and set up to use it.
282 *
283 * Note that we may have previous state, which will have to be discarded.
284 */
285static int
286acpi_tz_establish(struct acpi_tz_softc *sc)
287{
288 ACPI_OBJECT *obj;
289 int i;
290 char nbuf[8];
291
292 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
293
294 ACPI_ASSERTLOCK;
295
282}
283
284/*
285 * Parse the current state of this thermal zone and set up to use it.
286 *
287 * Note that we may have previous state, which will have to be discarded.
288 */
289static int
290acpi_tz_establish(struct acpi_tz_softc *sc)
291{
292 ACPI_OBJECT *obj;
293 int i;
294 char nbuf[8];
295
296 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
297
298 ACPI_ASSERTLOCK;
299
296 /*
297 * Power everything off and erase any existing state.
298 */
300 /* Power everything off and erase any existing state. */
299 acpi_tz_all_off(sc);
300 for (i = 0; i < TZ_NUMLEVELS; i++)
301 if (sc->tz_zone.al[i].Pointer != NULL)
302 AcpiOsFree(sc->tz_zone.al[i].Pointer);
303 if (sc->tz_zone.psl.Pointer != NULL)
304 AcpiOsFree(sc->tz_zone.psl.Pointer);
305 bzero(&sc->tz_zone, sizeof(sc->tz_zone));
306
301 acpi_tz_all_off(sc);
302 for (i = 0; i < TZ_NUMLEVELS; i++)
303 if (sc->tz_zone.al[i].Pointer != NULL)
304 AcpiOsFree(sc->tz_zone.al[i].Pointer);
305 if (sc->tz_zone.psl.Pointer != NULL)
306 AcpiOsFree(sc->tz_zone.psl.Pointer);
307 bzero(&sc->tz_zone, sizeof(sc->tz_zone));
308
307 /*
308 * Evaluate thermal zone parameters.
309 */
309 /* Evaluate thermal zone parameters. */
310 for (i = 0; i < TZ_NUMLEVELS; i++) {
311 sprintf(nbuf, "_AC%d", i);
312 acpi_tz_getparam(sc, nbuf, &sc->tz_zone.ac[i]);
313 sprintf(nbuf, "_AL%d", i);
314 sc->tz_zone.al[i].Length = ACPI_ALLOCATE_BUFFER;
315 sc->tz_zone.al[i].Pointer = NULL;
316 AcpiEvaluateObject(sc->tz_handle, nbuf, NULL, &sc->tz_zone.al[i]);
317 obj = (ACPI_OBJECT *)sc->tz_zone.al[i].Pointer;
318 if (obj != NULL) {
310 for (i = 0; i < TZ_NUMLEVELS; i++) {
311 sprintf(nbuf, "_AC%d", i);
312 acpi_tz_getparam(sc, nbuf, &sc->tz_zone.ac[i]);
313 sprintf(nbuf, "_AL%d", i);
314 sc->tz_zone.al[i].Length = ACPI_ALLOCATE_BUFFER;
315 sc->tz_zone.al[i].Pointer = NULL;
316 AcpiEvaluateObject(sc->tz_handle, nbuf, NULL, &sc->tz_zone.al[i]);
317 obj = (ACPI_OBJECT *)sc->tz_zone.al[i].Pointer;
318 if (obj != NULL) {
319 /* should be a package containing a list of power objects */
319 /* Should be a package containing a list of power objects */
320 if (obj->Type != ACPI_TYPE_PACKAGE) {
320 if (obj->Type != ACPI_TYPE_PACKAGE) {
321 device_printf(sc->tz_dev, "%s has unknown object type %d, rejecting\n",
321 device_printf(sc->tz_dev, "%s has unknown type %d, rejecting\n",
322 nbuf, obj->Type);
322 nbuf, obj->Type);
323 return_VALUE(ENXIO);
323 return_VALUE (ENXIO);
324 }
325 }
326 }
327 acpi_tz_getparam(sc, "_CRT", &sc->tz_zone.crt);
328 acpi_tz_getparam(sc, "_HOT", &sc->tz_zone.hot);
329 sc->tz_zone.psl.Length = ACPI_ALLOCATE_BUFFER;
330 sc->tz_zone.psl.Pointer = NULL;
331 AcpiEvaluateObject(sc->tz_handle, "_PSL", NULL, &sc->tz_zone.psl);

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347 for (i = 0; i < TZ_NUMLEVELS; i++)
348 acpi_tz_sanity(sc, &sc->tz_zone.ac[i], "_ACx");
349
350 /*
351 * Power off everything that we've just been given.
352 */
353 acpi_tz_all_off(sc);
354
324 }
325 }
326 }
327 acpi_tz_getparam(sc, "_CRT", &sc->tz_zone.crt);
328 acpi_tz_getparam(sc, "_HOT", &sc->tz_zone.hot);
329 sc->tz_zone.psl.Length = ACPI_ALLOCATE_BUFFER;
330 sc->tz_zone.psl.Pointer = NULL;
331 AcpiEvaluateObject(sc->tz_handle, "_PSL", NULL, &sc->tz_zone.psl);

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347 for (i = 0; i < TZ_NUMLEVELS; i++)
348 acpi_tz_sanity(sc, &sc->tz_zone.ac[i], "_ACx");
349
350 /*
351 * Power off everything that we've just been given.
352 */
353 acpi_tz_all_off(sc);
354
355 return_VALUE(0);
355 return_VALUE (0);
356}
357
358static char *aclevel_string[] = {
359 "NONE", "_AC0", "_AC1", "_AC2", "_AC3", "_AC4",
360 "_AC5", "_AC6", "_AC7", "_AC8", "_AC9" };
361
362static __inline const char *
363acpi_tz_aclevel_string(int active)
364{
356}
357
358static char *aclevel_string[] = {
359 "NONE", "_AC0", "_AC1", "_AC2", "_AC3", "_AC4",
360 "_AC5", "_AC6", "_AC7", "_AC8", "_AC9" };
361
362static __inline const char *
363acpi_tz_aclevel_string(int active)
364{
365 if (active < -1 || active >= TZ_NUMLEVELS) {
365 if (active < -1 || active >= TZ_NUMLEVELS)
366 return (aclevel_string[0]);
366 return (aclevel_string[0]);
367 }
368
369 return (aclevel_string[active+1]);
370}
371
372/*
373 * Evaluate the condition of a thermal zone, take appropriate actions.
374 */
375static void
367
368 return (aclevel_string[active+1]);
369}
370
371/*
372 * Evaluate the condition of a thermal zone, take appropriate actions.
373 */
374static void
376acpi_tz_monitor(struct acpi_tz_softc *sc)
375acpi_tz_monitor(void *Context)
377{
376{
377 struct acpi_tz_softc *sc;
378 struct timespec curtime;
378 int temp;
379 int i;
380 int newactive, newflags;
379 int temp;
380 int i;
381 int newactive, newflags;
381 struct timespec curtime;
382 ACPI_STATUS status;
383
384 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
385
386 ACPI_ASSERTLOCK;
387
382 ACPI_STATUS status;
383
384 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
385
386 ACPI_ASSERTLOCK;
387
388 if (sc->tz_tmp_updating) {
388 sc = (struct acpi_tz_softc *)Context;
389 if (sc->tz_tmp_updating)
389 goto out;
390 goto out;
390 }
391 sc->tz_tmp_updating = 1;
392
391 sc->tz_tmp_updating = 1;
392
393 /*
394 * Get the current temperature.
395 */
396 if (ACPI_FAILURE(status = acpi_EvaluateInteger(sc->tz_handle, "_TMP", &temp))) {
393 /* Get the current temperature. */
394 status = acpi_EvaluateInteger(sc->tz_handle, "_TMP", &temp);
395 if (ACPI_FAILURE(status)) {
397 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
398 "error fetching current temperature -- %s\n",
399 AcpiFormatException(status));
400 /* XXX disable zone? go to max cooling? */
401 goto out;
402 }
403
404 ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "got %d.%dC\n", TZ_KELVTOC(temp)));

--- 4 unchanged lines hidden (view full) ---

409 *
410 * Note that the _ACx levels sort from hot to cold.
411 */
412 newactive = TZ_ACTIVE_NONE;
413 for (i = TZ_NUMLEVELS - 1; i >= 0; i--) {
414 if ((sc->tz_zone.ac[i] != -1) && (temp >= sc->tz_zone.ac[i])) {
415 newactive = i;
416 if (sc->tz_active != newactive) {
396 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
397 "error fetching current temperature -- %s\n",
398 AcpiFormatException(status));
399 /* XXX disable zone? go to max cooling? */
400 goto out;
401 }
402
403 ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "got %d.%dC\n", TZ_KELVTOC(temp)));

--- 4 unchanged lines hidden (view full) ---

408 *
409 * Note that the _ACx levels sort from hot to cold.
410 */
411 newactive = TZ_ACTIVE_NONE;
412 for (i = TZ_NUMLEVELS - 1; i >= 0; i--) {
413 if ((sc->tz_zone.ac[i] != -1) && (temp >= sc->tz_zone.ac[i])) {
414 newactive = i;
415 if (sc->tz_active != newactive) {
417 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
418 "_AC%d: temperature %d.%d >= setpoint %d.%d\n", i,
419 TZ_KELVTOC(temp), TZ_KELVTOC(sc->tz_zone.ac[i]));
416 ACPI_VPRINT(sc->tz_dev,
417 acpi_device_get_parent_softc(sc->tz_dev),
418 "_AC%d: temperature %d.%d >= setpoint %d.%d\n", i,
419 TZ_KELVTOC(temp), TZ_KELVTOC(sc->tz_zone.ac[i]));
420 getnanotime(&sc->tz_cooling_started);
421 }
422 }
423 }
424
425 /*
426 * We are going to get _ACx level down (colder side), but give a guaranteed
427 * minimum cooling run time if requested.
428 */
429 if (acpi_tz_min_runtime > 0 && sc->tz_active != TZ_ACTIVE_NONE &&
430 (newactive == TZ_ACTIVE_NONE || newactive > sc->tz_active)) {
420 getnanotime(&sc->tz_cooling_started);
421 }
422 }
423 }
424
425 /*
426 * We are going to get _ACx level down (colder side), but give a guaranteed
427 * minimum cooling run time if requested.
428 */
429 if (acpi_tz_min_runtime > 0 && sc->tz_active != TZ_ACTIVE_NONE &&
430 (newactive == TZ_ACTIVE_NONE || newactive > sc->tz_active)) {
431
431 getnanotime(&curtime);
432 timespecsub(&curtime, &sc->tz_cooling_started);
432 getnanotime(&curtime);
433 timespecsub(&curtime, &sc->tz_cooling_started);
433 if (curtime.tv_sec < acpi_tz_min_runtime) {
434 if (curtime.tv_sec < acpi_tz_min_runtime)
434 newactive = sc->tz_active;
435 newactive = sc->tz_active;
435 }
436 }
437
436 }
437
438 /* handle user override of active mode */
438 /* Handle user override of active mode */
439 if (sc->tz_requested > newactive)
440 newactive = sc->tz_requested;
441
442 /* update temperature-related flags */
443 newflags = TZ_THFLAG_NONE;
444 if ((sc->tz_zone.psv != -1) && (temp >= sc->tz_zone.psv))
445 newflags |= TZ_THFLAG_PSV;
446 if ((sc->tz_zone.hot != -1) && (temp >= sc->tz_zone.hot))
447 newflags |= TZ_THFLAG_HOT;
448 if ((sc->tz_zone.crt != -1) && (temp >= sc->tz_zone.crt))
449 newflags |= TZ_THFLAG_CRT;
450
439 if (sc->tz_requested > newactive)
440 newactive = sc->tz_requested;
441
442 /* update temperature-related flags */
443 newflags = TZ_THFLAG_NONE;
444 if ((sc->tz_zone.psv != -1) && (temp >= sc->tz_zone.psv))
445 newflags |= TZ_THFLAG_PSV;
446 if ((sc->tz_zone.hot != -1) && (temp >= sc->tz_zone.hot))
447 newflags |= TZ_THFLAG_HOT;
448 if ((sc->tz_zone.crt != -1) && (temp >= sc->tz_zone.crt))
449 newflags |= TZ_THFLAG_CRT;
450
451 /*
452 * If the active cooling state has changed, we have to switch things.
453 */
451 /* If the active cooling state has changed, we have to switch things. */
454 if (newactive != sc->tz_active) {
452 if (newactive != sc->tz_active) {
455
456 /* turn off the cooling devices that are on, if any are */
453 /* Turn off the cooling devices that are on, if any are */
457 if (sc->tz_active != TZ_ACTIVE_NONE)
454 if (sc->tz_active != TZ_ACTIVE_NONE)
458 acpi_ForeachPackageObject((ACPI_OBJECT *)sc->tz_zone.al[sc->tz_active].Pointer,
459 acpi_tz_switch_cooler_off, sc);
455 acpi_ForeachPackageObject(
456 (ACPI_OBJECT *)sc->tz_zone.al[sc->tz_active].Pointer,
457 acpi_tz_switch_cooler_off, sc);
460
458
461 /* turn on cooling devices that are required, if any are */
462 if (newactive != TZ_ACTIVE_NONE)
463 acpi_ForeachPackageObject((ACPI_OBJECT *)sc->tz_zone.al[newactive].Pointer,
464 acpi_tz_switch_cooler_on, sc);
459 /* Turn on cooling devices that are required, if any are */
460 if (newactive != TZ_ACTIVE_NONE) {
461 acpi_ForeachPackageObject(
462 (ACPI_OBJECT *)sc->tz_zone.al[newactive].Pointer,
463 acpi_tz_switch_cooler_on, sc);
464 }
465 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
465 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
466 "switched from %s to %s: %d.%dC\n",
467 acpi_tz_aclevel_string(sc->tz_active),
468 acpi_tz_aclevel_string(newactive), TZ_KELVTOC(temp));
466 "switched from %s to %s: %d.%dC\n",
467 acpi_tz_aclevel_string(sc->tz_active),
468 acpi_tz_aclevel_string(newactive), TZ_KELVTOC(temp));
469 sc->tz_active = newactive;
470 }
471
469 sc->tz_active = newactive;
470 }
471
472 /*
473 * XXX (de)activate any passive cooling that may be required.
474 */
472 /* XXX (de)activate any passive cooling that may be required. */
475
476 /*
477 * If we have just become _HOT or _CRT, warn the user.
478 *
479 * We should actually shut down at this point, but it's not clear
480 * that some systems don't actually map _CRT to the same value as _AC0.
481 */
473
474 /*
475 * If we have just become _HOT or _CRT, warn the user.
476 *
477 * We should actually shut down at this point, but it's not clear
478 * that some systems don't actually map _CRT to the same value as _AC0.
479 */
482 if ((newflags & (TZ_THFLAG_HOT | TZ_THFLAG_CRT)) &&
483 !(sc->tz_thflags & (TZ_THFLAG_HOT | TZ_THFLAG_CRT))) {
484 device_printf(sc->tz_dev, "WARNING - current temperature (%d.%dC) exceeds system limits\n",
480 if ((newflags & (TZ_THFLAG_HOT | TZ_THFLAG_CRT)) != 0 &&
481 (sc->tz_thflags & (TZ_THFLAG_HOT | TZ_THFLAG_CRT)) == 0) {
482
483 device_printf(sc->tz_dev,
484 "WARNING - current temperature (%d.%dC) exceeds system limits\n",
485 TZ_KELVTOC(sc->tz_temperature));
486 /* shutdown_nice(RB_POWEROFF);*/
487 }
488 sc->tz_thflags = newflags;
489
490out:
491 sc->tz_tmp_updating = 0;
492 return_VOID;

--- 6 unchanged lines hidden (view full) ---

499acpi_tz_all_off(struct acpi_tz_softc *sc)
500{
501 int i;
502
503 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
504
505 ACPI_ASSERTLOCK;
506
485 TZ_KELVTOC(sc->tz_temperature));
486 /* shutdown_nice(RB_POWEROFF);*/
487 }
488 sc->tz_thflags = newflags;
489
490out:
491 sc->tz_tmp_updating = 0;
492 return_VOID;

--- 6 unchanged lines hidden (view full) ---

499acpi_tz_all_off(struct acpi_tz_softc *sc)
500{
501 int i;
502
503 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
504
505 ACPI_ASSERTLOCK;
506
507 /*
508 * Scan all the _ALx objects, and turn them all off.
509 */
507 /* Scan all the _ALx objects and turn them all off. */
510 for (i = 0; i < TZ_NUMLEVELS; i++) {
511 if (sc->tz_zone.al[i].Pointer == NULL)
512 continue;
513 acpi_ForeachPackageObject((ACPI_OBJECT *)sc->tz_zone.al[i].Pointer,
514 acpi_tz_switch_cooler_off, sc);
515 }
516
517 /*
518 * XXX revert any passive-cooling options.
519 */
520
521 sc->tz_active = TZ_ACTIVE_NONE;
522 sc->tz_thflags = TZ_THFLAG_NONE;
508 for (i = 0; i < TZ_NUMLEVELS; i++) {
509 if (sc->tz_zone.al[i].Pointer == NULL)
510 continue;
511 acpi_ForeachPackageObject((ACPI_OBJECT *)sc->tz_zone.al[i].Pointer,
512 acpi_tz_switch_cooler_off, sc);
513 }
514
515 /*
516 * XXX revert any passive-cooling options.
517 */
518
519 sc->tz_active = TZ_ACTIVE_NONE;
520 sc->tz_thflags = TZ_THFLAG_NONE;
521
523 return_VOID;
524}
525
526/*
527 * Given an object, verify that it's a reference to a device of some sort,
528 * and try to switch it off.
529 */
530static void
531acpi_tz_switch_cooler_off(ACPI_OBJECT *obj, void *arg)
532{
533 ACPI_HANDLE cooler;
534
535 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
536
537 ACPI_ASSERTLOCK;
538
539 switch(obj->Type) {
540 case ACPI_TYPE_ANY:
522 return_VOID;
523}
524
525/*
526 * Given an object, verify that it's a reference to a device of some sort,
527 * and try to switch it off.
528 */
529static void
530acpi_tz_switch_cooler_off(ACPI_OBJECT *obj, void *arg)
531{
532 ACPI_HANDLE cooler;
533
534 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
535
536 ACPI_ASSERTLOCK;
537
538 switch(obj->Type) {
539 case ACPI_TYPE_ANY:
541 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s off\n", acpi_name(obj->Reference.Handle)));
540 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s off\n",
541 acpi_name(obj->Reference.Handle)));
542
543 acpi_pwr_switch_consumer(obj->Reference.Handle, ACPI_STATE_D3);
544 break;
542
543 acpi_pwr_switch_consumer(obj->Reference.Handle, ACPI_STATE_D3);
544 break;
545
546 case ACPI_TYPE_STRING:
545 case ACPI_TYPE_STRING:
547 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s off\n", obj->String.Pointer));
546 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s off\n",
547 obj->String.Pointer));
548
549 /*
550 * Find the handle for the device and turn it off.
551 * The String object here seems to contain a fully-qualified path, so we
552 * don't have to search for it in our parents.
553 *
554 * XXX This may not always be the case.
555 */
556 if (ACPI_SUCCESS(AcpiGetHandle(NULL, obj->String.Pointer, &cooler)))
557 acpi_pwr_switch_consumer(cooler, ACPI_STATE_D3);
558 break;
548
549 /*
550 * Find the handle for the device and turn it off.
551 * The String object here seems to contain a fully-qualified path, so we
552 * don't have to search for it in our parents.
553 *
554 * XXX This may not always be the case.
555 */
556 if (ACPI_SUCCESS(AcpiGetHandle(NULL, obj->String.Pointer, &cooler)))
557 acpi_pwr_switch_consumer(cooler, ACPI_STATE_D3);
558 break;
559
560 default:
559 default:
561 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to handle unsupported object type %d\n",
562 obj->Type));
560 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS,
561 "called to handle unsupported object type %d\n",
562 obj->Type));
563 break;
564 }
563 break;
564 }
565
565 return_VOID;
566}
567
568/*
569 * Given an object, verify that it's a reference to a device of some sort,
570 * and try to switch it on.
571 *
572 * XXX replication of off/on function code is bad, mmmkay?

--- 6 unchanged lines hidden (view full) ---

579 ACPI_STATUS status;
580
581 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
582
583 ACPI_ASSERTLOCK;
584
585 switch(obj->Type) {
586 case ACPI_TYPE_ANY:
566 return_VOID;
567}
568
569/*
570 * Given an object, verify that it's a reference to a device of some sort,
571 * and try to switch it on.
572 *
573 * XXX replication of off/on function code is bad, mmmkay?

--- 6 unchanged lines hidden (view full) ---

580 ACPI_STATUS status;
581
582 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
583
584 ACPI_ASSERTLOCK;
585
586 switch(obj->Type) {
587 case ACPI_TYPE_ANY:
587 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s on\n", acpi_name(obj->Reference.Handle)));
588 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s on\n",
589 acpi_name(obj->Reference.Handle)));
588
590
589 if (ACPI_FAILURE(status = acpi_pwr_switch_consumer(obj->Reference.Handle, ACPI_STATE_D0))) {
591 status = acpi_pwr_switch_consumer(obj->Reference.Handle, ACPI_STATE_D0);
592 if (ACPI_FAILURE(status)) {
590 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
593 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
591 "failed to activate %s - %s\n", acpi_name(obj->Reference.Handle),
592 AcpiFormatException(status));
594 "failed to activate %s - %s\n",
595 acpi_name(obj->Reference.Handle),
596 AcpiFormatException(status));
593 }
594 break;
597 }
598 break;
595
596 case ACPI_TYPE_STRING:
599 case ACPI_TYPE_STRING:
597 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s on\n", obj->String.Pointer));
600 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to turn %s on\n",
601 obj->String.Pointer));
598
599 /*
600 * Find the handle for the device and turn it off.
601 * The String object here seems to contain a fully-qualified path, so we
602 * don't have to search for it in our parents.
603 *
604 * XXX This may not always be the case.
605 */
606 if (ACPI_SUCCESS(AcpiGetHandle(NULL, obj->String.Pointer, &cooler))) {
602
603 /*
604 * Find the handle for the device and turn it off.
605 * The String object here seems to contain a fully-qualified path, so we
606 * don't have to search for it in our parents.
607 *
608 * XXX This may not always be the case.
609 */
610 if (ACPI_SUCCESS(AcpiGetHandle(NULL, obj->String.Pointer, &cooler))) {
607 if (ACPI_FAILURE(status = acpi_pwr_switch_consumer(cooler, ACPI_STATE_D0))) {
608 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
609 "failed to activate %s - %s\n",
610 obj->String.Pointer, AcpiFormatException(status));
611 status = acpi_pwr_switch_consumer(cooler, ACPI_STATE_D0);
612 if (ACPI_FAILURE(status)) {
613 ACPI_VPRINT(sc->tz_dev,
614 acpi_device_get_parent_softc(sc->tz_dev),
615 "failed to activate %s - %s\n",
616 obj->String.Pointer, AcpiFormatException(status));
611 }
612 } else {
613 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
617 }
618 } else {
619 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
614 "couldn't find %s\n", obj->String.Pointer);
620 "couldn't find %s\n", obj->String.Pointer);
615 }
616 break;
621 }
622 break;
617
618 default:
623 default:
619 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "called to handle unsupported object type %d\n",
624 ACPI_DEBUG_PRINT((ACPI_DB_OBJECTS, "unsupported object type %d\n",
620 obj->Type));
621 break;
622 }
625 obj->Type));
626 break;
627 }
623 return_VOID;
628
629 return_VOID;
624}
625
626/*
627 * Read/debug-print a parameter, default it to -1.
628 */
629static void
630acpi_tz_getparam(struct acpi_tz_softc *sc, char *node, int *data)
631{
632
633 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
634
635 ACPI_ASSERTLOCK;
636
637 if (ACPI_FAILURE(acpi_EvaluateInteger(sc->tz_handle, node, data))) {
638 *data = -1;
639 } else {
630}
631
632/*
633 * Read/debug-print a parameter, default it to -1.
634 */
635static void
636acpi_tz_getparam(struct acpi_tz_softc *sc, char *node, int *data)
637{
638
639 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
640
641 ACPI_ASSERTLOCK;
642
643 if (ACPI_FAILURE(acpi_EvaluateInteger(sc->tz_handle, node, data))) {
644 *data = -1;
645 } else {
640 ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "%s.%s = %d\n", acpi_name(sc->tz_handle),
641 node, *data));
646 ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "%s.%s = %d\n",
647 acpi_name(sc->tz_handle), node, *data));
642 }
648 }
649
643 return_VOID;
644}
645
646/*
647 * Sanity-check a temperature value. Assume that setpoints
648 * should be between 0C and 150C.
649 */
650static void
651acpi_tz_sanity(struct acpi_tz_softc *sc, int *val, char *what)
652{
650 return_VOID;
651}
652
653/*
654 * Sanity-check a temperature value. Assume that setpoints
655 * should be between 0C and 150C.
656 */
657static void
658acpi_tz_sanity(struct acpi_tz_softc *sc, int *val, char *what)
659{
653 if ((*val != -1) && ((*val < TZ_ZEROC) || (*val > (TZ_ZEROC + 1500)))) {
660 if (*val != -1 && (*val < TZ_ZEROC || *val > TZ_ZEROC + 1500)) {
654 device_printf(sc->tz_dev, "%s value is absurd, ignored (%d.%dC)\n",
655 what, TZ_KELVTOC(*val));
656 *val = -1;
657 }
658}
659
660/*
661 * Respond to a sysctl on the active state node.

--- 7 unchanged lines hidden (view full) ---

669 ACPI_LOCK_DECL;
670
671 ACPI_LOCK;
672
673 sc = (struct acpi_tz_softc *)oidp->oid_arg1;
674 active = sc->tz_active;
675 error = sysctl_handle_int(oidp, &active, 0, req);
676
661 device_printf(sc->tz_dev, "%s value is absurd, ignored (%d.%dC)\n",
662 what, TZ_KELVTOC(*val));
663 *val = -1;
664 }
665}
666
667/*
668 * Respond to a sysctl on the active state node.

--- 7 unchanged lines hidden (view full) ---

676 ACPI_LOCK_DECL;
677
678 ACPI_LOCK;
679
680 sc = (struct acpi_tz_softc *)oidp->oid_arg1;
681 active = sc->tz_active;
682 error = sysctl_handle_int(oidp, &active, 0, req);
683
677 /* error or no new value */
678 if ((error != 0) || (req->newptr == NULL))
684 /* Error or no new value */
685 if (error != 0 || req->newptr == NULL)
679 goto out;
686 goto out;
680
681 /* range check */
682 if ((active < -1) || (active >= TZ_NUMLEVELS)) {
687 if (active < -1 || active >= TZ_NUMLEVELS) {
683 error = EINVAL;
684 goto out;
685 }
686
688 error = EINVAL;
689 goto out;
690 }
691
687 /* set new preferred level and re-switch */
692 /* Set new preferred level and re-switch */
688 sc->tz_requested = active;
689 acpi_tz_monitor(sc);
690
691 out:
692 ACPI_UNLOCK;
693 sc->tz_requested = active;
694 acpi_tz_monitor(sc);
695
696 out:
697 ACPI_UNLOCK;
693 return(error);
698 return (error);
694}
695
696/*
697 * Respond to a Notify event sent to the zone.
698 */
699static void
700acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
701{
702 struct acpi_tz_softc *sc = (struct acpi_tz_softc *)context;
703
704 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
705
706 ACPI_ASSERTLOCK;
707
708 switch(notify) {
709 case TZ_NOTIFY_TEMPERATURE:
699}
700
701/*
702 * Respond to a Notify event sent to the zone.
703 */
704static void
705acpi_tz_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
706{
707 struct acpi_tz_softc *sc = (struct acpi_tz_softc *)context;
708
709 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
710
711 ACPI_ASSERTLOCK;
712
713 switch(notify) {
714 case TZ_NOTIFY_TEMPERATURE:
710 /* temperature change occurred */
711 AcpiOsQueueForExecution(OSD_PRIORITY_HIGH, (OSD_EXECUTION_CALLBACK)acpi_tz_monitor, sc);
715 /* Temperature change occurred */
716 AcpiOsQueueForExecution(OSD_PRIORITY_HIGH, acpi_tz_monitor, sc);
712 break;
713 case TZ_NOTIFY_DEVICES:
714 case TZ_NOTIFY_LEVELS:
717 break;
718 case TZ_NOTIFY_DEVICES:
719 case TZ_NOTIFY_LEVELS:
715 /* zone devices/setpoints changed */
716 AcpiOsQueueForExecution(OSD_PRIORITY_HIGH, (OSD_EXECUTION_CALLBACK)acpi_tz_establish, sc);
720 /* Zone devices/setpoints changed */
721 AcpiOsQueueForExecution(OSD_PRIORITY_HIGH,
722 (OSD_EXECUTION_CALLBACK)acpi_tz_establish, sc);
717 break;
718 default:
719 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
723 break;
724 default:
725 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
720 "unknown Notify event 0x%x\n", notify);
726 "unknown Notify event 0x%x\n", notify);
721 break;
722 }
727 break;
728 }
729
723 return_VOID;
724}
725
726/*
727 * Poll the thermal zone.
728 */
729static void
730acpi_tz_timeout(struct acpi_tz_softc *sc)
731{
730 return_VOID;
731}
732
733/*
734 * Poll the thermal zone.
735 */
736static void
737acpi_tz_timeout(struct acpi_tz_softc *sc)
738{
732
733 /* do we need to get the power profile settings? */
739 /* Do we need to get the power profile settings? */
734 if (sc->tz_flags & TZ_FLAG_GETPROFILE) {
735 acpi_tz_power_profile((void *)sc);
736 sc->tz_flags &= ~TZ_FLAG_GETPROFILE;
737 }
738
739 ACPI_ASSERTLOCK;
740
740 if (sc->tz_flags & TZ_FLAG_GETPROFILE) {
741 acpi_tz_power_profile((void *)sc);
742 sc->tz_flags &= ~TZ_FLAG_GETPROFILE;
743 }
744
745 ACPI_ASSERTLOCK;
746
741 /* check the current temperature and take action based on it */
747 /* Check the current temperature and take action based on it */
742 acpi_tz_monitor(sc);
743
744 /* XXX passive cooling actions? */
745}
746
747/*
748 * System power profile may have changed; fetch and notify the
749 * thermal zone accordingly.

--- 7 unchanged lines hidden (view full) ---

757 ACPI_OBJECT_LIST args;
758 ACPI_OBJECT obj;
759 ACPI_STATUS status;
760 struct acpi_tz_softc *sc = (struct acpi_tz_softc *)arg;
761 int state;
762 ACPI_LOCK_DECL;
763
764 state = power_profile_get_state();
748 acpi_tz_monitor(sc);
749
750 /* XXX passive cooling actions? */
751}
752
753/*
754 * System power profile may have changed; fetch and notify the
755 * thermal zone accordingly.

--- 7 unchanged lines hidden (view full) ---

763 ACPI_OBJECT_LIST args;
764 ACPI_OBJECT obj;
765 ACPI_STATUS status;
766 struct acpi_tz_softc *sc = (struct acpi_tz_softc *)arg;
767 int state;
768 ACPI_LOCK_DECL;
769
770 state = power_profile_get_state();
765 if (state != POWER_PROFILE_PERFORMANCE &&
766 state != POWER_PROFILE_ECONOMY) {
767 return;
768 }
771 if (state != POWER_PROFILE_PERFORMANCE && state != POWER_PROFILE_ECONOMY)
772 return;
769
770 ACPI_LOCK;
771
772 /* check that we haven't decided there's no _SCP method */
773
774 ACPI_LOCK;
775
776 /* check that we haven't decided there's no _SCP method */
773 if (!(sc->tz_flags & TZ_FLAG_NO_SCP)) {
777 if ((sc->tz_flags & TZ_FLAG_NO_SCP) == 0) {
774
778
775 /* call _SCP to set the new profile */
779 /* Call _SCP to set the new profile */
776 obj.Type = ACPI_TYPE_INTEGER;
777 obj.Integer.Value = (state == POWER_PROFILE_PERFORMANCE) ? 0 : 1;
778 args.Count = 1;
779 args.Pointer = &obj;
780 obj.Type = ACPI_TYPE_INTEGER;
781 obj.Integer.Value = (state == POWER_PROFILE_PERFORMANCE) ? 0 : 1;
782 args.Count = 1;
783 args.Pointer = &obj;
780 if (ACPI_FAILURE(status = AcpiEvaluateObject(sc->tz_handle, "_SCP", &args, NULL))) {
784 status = AcpiEvaluateObject(sc->tz_handle, "_SCP", &args, NULL);
785 if (ACPI_FAILURE(status)) {
781 if (status != AE_NOT_FOUND)
786 if (status != AE_NOT_FOUND)
782 ACPI_VPRINT(sc->tz_dev, acpi_device_get_parent_softc(sc->tz_dev),
783 "can't evaluate %s._SCP - %s\n", acpi_name(sc->tz_handle),
784 AcpiFormatException(status));
787 ACPI_VPRINT(sc->tz_dev,
788 acpi_device_get_parent_softc(sc->tz_dev),
789 "can't evaluate %s._SCP - %s\n",
790 acpi_name(sc->tz_handle),
791 AcpiFormatException(status));
785 sc->tz_flags |= TZ_FLAG_NO_SCP;
786 } else {
792 sc->tz_flags |= TZ_FLAG_NO_SCP;
793 } else {
787 /* we have to re-evaluate the entire zone now */
788 AcpiOsQueueForExecution(OSD_PRIORITY_HIGH, (OSD_EXECUTION_CALLBACK)acpi_tz_establish, sc);
794 /* We have to re-evaluate the entire zone now */
795 AcpiOsQueueForExecution(OSD_PRIORITY_HIGH,
796 (OSD_EXECUTION_CALLBACK)acpi_tz_establish,
797 sc);
789 }
790 }
798 }
799 }
800
791 ACPI_UNLOCK;
792}
793
794/*
795 * Thermal zone monitor thread.
796 */
797static void
798acpi_tz_thread(void *arg)
799{
800 device_t *devs;
801 int devcount, i;
802 ACPI_LOCK_DECL;
803
804 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
805
801 ACPI_UNLOCK;
802}
803
804/*
805 * Thermal zone monitor thread.
806 */
807static void
808acpi_tz_thread(void *arg)
809{
810 device_t *devs;
811 int devcount, i;
812 ACPI_LOCK_DECL;
813
814 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
815
806
807 devs = NULL;
808 devcount = 0;
809
810 for (;;) {
816 devs = NULL;
817 devcount = 0;
818
819 for (;;) {
811 tsleep(&acpi_tz_proc, PZERO, "nothing", hz * acpi_tz_polling_rate);
820 tsleep(&acpi_tz_proc, PZERO, "tzpoll", hz * acpi_tz_polling_rate);
812
813#if __FreeBSD_version >= 500000
814 mtx_lock(&Giant);
815#endif
816
817 if (devcount == 0)
818 devclass_get_devices(acpi_tz_devclass, &devs, &devcount);
819
820 ACPI_LOCK;
821 for (i = 0; i < devcount; i++)
822 acpi_tz_timeout(device_get_softc(devs[i]));
823 ACPI_UNLOCK;
824
825#if __FreeBSD_version >= 500000
826 mtx_unlock(&Giant);
827#endif
828 }
829}
821
822#if __FreeBSD_version >= 500000
823 mtx_lock(&Giant);
824#endif
825
826 if (devcount == 0)
827 devclass_get_devices(acpi_tz_devclass, &devs, &devcount);
828
829 ACPI_LOCK;
830 for (i = 0; i < devcount; i++)
831 acpi_tz_timeout(device_get_softc(devs[i]));
832 ACPI_UNLOCK;
833
834#if __FreeBSD_version >= 500000
835 mtx_unlock(&Giant);
836#endif
837 }
838}