acpi_tz.c revision 1.15
1 /* $NetBSD: acpi_tz.c,v 1.15 2005/05/02 14:54:00 kochi Exp $ */ 2 3 /* 4 * Copyright (c) 2003 Jared D. McNeill <jmcneill (at) invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. The name of the author may not be used to endorse or promote products 13 * derived from this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 20 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 22 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * ACPI Thermal Zone driver 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: acpi_tz.c,v 1.15 2005/05/02 14:54:00 kochi Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/errno.h> 39 #include <sys/ioctl.h> 40 #include <sys/syslog.h> 41 #include <sys/device.h> 42 #include <sys/callout.h> 43 #include <sys/proc.h> 44 #include <sys/lock.h> 45 #include <dev/sysmon/sysmonvar.h> 46 47 #include <dev/acpi/acpica.h> 48 #include <dev/acpi/acpireg.h> 49 #include <dev/acpi/acpivar.h> 50 51 /* flags */ 52 #define ATZ_F_VERBOSE 0x01 /* show events to console */ 53 #define ATZ_F_CRITICAL 0x02 /* zone critical */ 54 #define ATZ_F_HOT 0x04 /* zone hot */ 55 #define ATZ_F_PASSIVE 0x08 /* zone passive cooling */ 56 #define ATZ_F_PASSIVEONLY 0x10 /* zone is passive cooling only */ 57 58 /* no active cooling level */ 59 #define ATZ_ACTIVE_NONE -1 60 61 /* constants */ 62 #define ATZ_TZP_RATE 300 /* default if no _TZP CM present (30 secs) */ 63 #define ATZ_NLEVELS 10 /* number of cooling levels, from ACPI spec */ 64 #define ATZ_ZEROC 2732 /* 0C in tenths degrees Kelvin */ 65 #define ATZ_TMP_INVALID 0xffffffff /* invalid temperature */ 66 #define ATZ_ZONE_EXPIRE 9000 /* zone info refetch interval (15min) */ 67 68 /* sensor indexes */ 69 #define ATZ_SENSOR_TEMP 0 /* thermal zone temperature */ 70 #define ATZ_NUMSENSORS 1 /* number of sensors */ 71 72 static const struct envsys_range acpitz_ranges[] = { 73 { 0, 1, ATZ_SENSOR_TEMP }, 74 }; 75 76 static int acpitz_match(struct device *, struct cfdata *, void *); 77 static void acpitz_attach(struct device *, struct device *, void *); 78 79 /* 80 * ACPI Temperature Zone information. Note all temperatures are reported 81 * in tenths of degrees Kelvin 82 */ 83 struct acpitz_zone { 84 /* Active cooling temperature threshold */ 85 UINT32 ac[ATZ_NLEVELS]; 86 /* Package of references to all active cooling devices for a level */ 87 ACPI_BUFFER al[ATZ_NLEVELS]; 88 /* Critical temperature threshold for system shutdown */ 89 UINT32 crt; 90 /* Critical temperature threshold for S4 sleep */ 91 UINT32 hot; 92 /* Package of references to processor objects for passive cooling */ 93 ACPI_BUFFER psl; 94 /* Passive cooling temperature threshold */ 95 UINT32 psv; 96 /* Thermal constants for use in passive cooling formulas */ 97 UINT32 tc1, tc2; 98 /* Current temperature of the thermal zone */ 99 UINT32 tmp; 100 /* Thermal sampling period for passive cooling, in tenths of seconds */ 101 UINT32 tsp; 102 /* Package of references to devices in this TZ (optional) */ 103 ACPI_BUFFER tzd; 104 /* Recommended TZ polling frequency, in tenths of seconds */ 105 UINT32 tzp; 106 }; 107 108 struct acpitz_softc { 109 struct device sc_dev; 110 struct acpi_devnode *sc_devnode; 111 struct acpitz_zone sc_zone; 112 struct callout sc_callout; 113 struct envsys_tre_data sc_data[ATZ_NUMSENSORS]; 114 struct envsys_basic_info sc_info[ATZ_NUMSENSORS]; 115 struct sysmon_envsys sc_sysmon; 116 struct simplelock sc_slock; 117 int sc_active; /* active cooling level */ 118 int sc_flags; 119 int sc_rate; /* tz poll rate */ 120 int sc_zone_expire; 121 }; 122 123 static void acpitz_get_status(void *); 124 static void acpitz_get_zone(void *, int); 125 static void acpitz_get_zone_quiet(void *); 126 static char* acpitz_celcius_string(int); 127 static void acpitz_print_status(struct acpitz_softc *); 128 static void acpitz_power_off(struct acpitz_softc *); 129 static void acpitz_power_zone(struct acpitz_softc *, int, int); 130 static void acpitz_sane_temp(UINT32 *tmp); 131 static ACPI_STATUS 132 acpitz_switch_cooler(ACPI_OBJECT *, void *); 133 static void acpitz_notify_handler(ACPI_HANDLE, UINT32, void *); 134 static int acpitz_get_integer(struct acpitz_softc *, char *, UINT32 *); 135 static void acpitz_tick(void *); 136 static void acpitz_init_envsys(struct acpitz_softc *); 137 static int acpitz_gtredata(struct sysmon_envsys *, 138 struct envsys_tre_data *); 139 static int acpitz_streinfo(struct sysmon_envsys *, 140 struct envsys_basic_info *); 141 142 CFATTACH_DECL(acpitz, sizeof(struct acpitz_softc), acpitz_match, 143 acpitz_attach, NULL, NULL); 144 145 /* 146 * acpitz_match: autoconf(9) match routine 147 */ 148 static int 149 acpitz_match(struct device *parent, struct cfdata *match, void *aux) 150 { 151 struct acpi_attach_args *aa = aux; 152 153 if (aa->aa_node->ad_type != ACPI_TYPE_THERMAL) 154 return 0; 155 156 return 1; 157 } 158 159 /* 160 * acpitz_attach: autoconf(9) attach routine 161 */ 162 static void 163 acpitz_attach(struct device *parent, struct device *self, void *aux) 164 { 165 struct acpitz_softc *sc = (struct acpitz_softc *)self; 166 struct acpi_attach_args *aa = aux; 167 ACPI_STATUS rv; 168 ACPI_INTEGER v; 169 170 #if 0 171 sc->sc_flags = ATZ_F_VERBOSE; 172 #endif 173 sc->sc_devnode = aa->aa_node; 174 175 printf(": ACPI Thermal Zone\n"); 176 177 rv = acpi_eval_integer(sc->sc_devnode->ad_handle, "_TZP", &v); 178 if (ACPI_FAILURE(rv)) { 179 printf("%s: unable to get polling interval; using default of", 180 sc->sc_dev.dv_xname); 181 sc->sc_zone.tzp = ATZ_TZP_RATE; 182 } else { 183 sc->sc_zone.tzp = v; 184 printf("%s: polling interval is", sc->sc_dev.dv_xname); 185 } 186 printf(" %d.%ds\n", sc->sc_zone.tzp / 10, sc->sc_zone.tzp % 10); 187 188 /* XXX a value of 0 means "polling is not necessary" */ 189 if (sc->sc_zone.tzp == 0) 190 sc->sc_zone.tzp = ATZ_TZP_RATE; 191 192 sc->sc_zone_expire = ATZ_ZONE_EXPIRE / sc->sc_zone.tzp; 193 194 acpitz_get_zone(sc, 1); 195 acpitz_get_status(sc); 196 197 rv = AcpiInstallNotifyHandler(sc->sc_devnode->ad_handle, 198 ACPI_SYSTEM_NOTIFY, acpitz_notify_handler, sc); 199 if (ACPI_FAILURE(rv)) { 200 printf("%s: unable to install SYSTEM NOTIFY handler: %s\n", 201 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 202 return; 203 } 204 205 callout_init(&sc->sc_callout); 206 callout_reset(&sc->sc_callout, sc->sc_zone.tzp * hz / 10, 207 acpitz_tick, sc); 208 209 acpitz_init_envsys(sc); 210 } 211 212 static void 213 acpitz_get_zone_quiet(void *opaque) 214 { 215 acpitz_get_zone(opaque, 0); 216 } 217 218 static void 219 acpitz_get_status(void *opaque) 220 { 221 struct acpitz_softc *sc = opaque; 222 UINT32 tmp, active; 223 int i, flags; 224 225 sc->sc_zone_expire--; 226 if (sc->sc_zone_expire <= 0) { 227 sc->sc_zone_expire = ATZ_ZONE_EXPIRE / sc->sc_zone.tzp; 228 if (sc->sc_flags & ATZ_F_VERBOSE) 229 printf("%s: force refetch zone\n", sc->sc_dev.dv_xname); 230 acpitz_get_zone(sc, 0); 231 } 232 233 if (acpitz_get_integer(sc, "_TMP", &tmp)) { 234 printf("%s: failed to evaluate _TMP\n", sc->sc_dev.dv_xname); 235 return; 236 } 237 sc->sc_zone.tmp = tmp; 238 /* XXX sanity check for tmp here? */ 239 240 /* 241 * The temperature unit for envsys(4) is microKelvin, so convert to 242 * that from ACPI's microKelvin. Also, the ACPI specification assumes 243 * that K = C + 273.2 rather than the nominal 273.15 used by envsys(4), 244 * so we correct for that too. 245 */ 246 sc->sc_data[ATZ_SENSOR_TEMP].cur.data_us = 247 sc->sc_zone.tmp * 100000 - 50000; 248 sc->sc_data[ATZ_SENSOR_TEMP].validflags |= ENVSYS_FCURVALID; 249 250 if (sc->sc_flags & ATZ_F_VERBOSE) 251 acpitz_print_status(sc); 252 253 if (sc->sc_flags & ATZ_F_PASSIVEONLY) { 254 /* Passive Cooling: XXX not yet */ 255 256 } else { 257 /* Active Cooling */ 258 259 /* temperature threshold: _AC0 > ... > _AC9 */ 260 active = ATZ_ACTIVE_NONE; 261 for (i = ATZ_NLEVELS - 1; i >= 0; i--) { 262 if (sc->sc_zone.ac[i] == ATZ_TMP_INVALID) 263 continue; 264 265 /* we want to keep highest cooling mode in 'active' */ 266 if (sc->sc_zone.ac[i] <= tmp) 267 active = i; 268 } 269 270 flags = sc->sc_flags & ~(ATZ_F_CRITICAL|ATZ_F_HOT|ATZ_F_PASSIVE); 271 if (sc->sc_zone.psv != ATZ_TMP_INVALID && 272 tmp >= sc->sc_zone.psv) 273 flags |= ATZ_F_PASSIVE; 274 if (sc->sc_zone.hot != ATZ_TMP_INVALID && 275 tmp >= sc->sc_zone.hot) 276 flags |= ATZ_F_HOT; 277 if (sc->sc_zone.crt != ATZ_TMP_INVALID && 278 tmp >= sc->sc_zone.crt) 279 flags |= ATZ_F_CRITICAL; 280 281 if (flags != sc->sc_flags) { 282 int changed = (sc->sc_flags ^ flags) & flags; 283 sc->sc_flags = flags; 284 if (changed & ATZ_F_CRITICAL) 285 printf("%s: zone went critical at temp %sC\n", 286 sc->sc_dev.dv_xname, 287 acpitz_celcius_string(tmp)); 288 else if (changed & ATZ_F_HOT) 289 printf("%s: zone went hot at temp %sC\n", 290 sc->sc_dev.dv_xname, 291 acpitz_celcius_string(tmp)); 292 } 293 294 /* power on fans */ 295 if (sc->sc_active != active) { 296 if (sc->sc_active != ATZ_ACTIVE_NONE) 297 acpitz_power_zone(sc, sc->sc_active, 0); 298 299 if (active != ATZ_ACTIVE_NONE) { 300 if (sc->sc_flags & ATZ_F_VERBOSE) 301 printf("%s: active cooling level %u\n", 302 sc->sc_dev.dv_xname, active); 303 acpitz_power_zone(sc, active, 1); 304 } 305 306 sc->sc_active = active; 307 } 308 } 309 310 return; 311 } 312 313 static char * 314 acpitz_celcius_string(int dk) 315 { 316 static char buf[10]; 317 318 snprintf(buf, sizeof(buf), "%d.%d", (dk - ATZ_ZEROC) / 10, 319 (dk - ATZ_ZEROC) % 10); 320 321 return buf; 322 } 323 324 static void 325 acpitz_print_status(struct acpitz_softc *sc) 326 { 327 328 printf("%s: zone temperature is now %sC\n", sc->sc_dev.dv_xname, 329 acpitz_celcius_string(sc->sc_zone.tmp)); 330 331 return; 332 } 333 334 static ACPI_STATUS 335 acpitz_switch_cooler(ACPI_OBJECT *obj, void *arg) 336 { 337 ACPI_HANDLE cooler; 338 ACPI_STATUS rv; 339 int pwr_state, flag; 340 341 flag = *(int *)arg; 342 343 if (flag) 344 pwr_state = ACPI_STATE_D0; 345 else 346 pwr_state = ACPI_STATE_D3; 347 348 switch(obj->Type) { 349 case ACPI_TYPE_ANY: 350 cooler = obj->Reference.Handle; 351 break; 352 case ACPI_TYPE_STRING: 353 rv = AcpiGetHandle(NULL, obj->String.Pointer, &cooler); 354 if (ACPI_FAILURE(rv)) { 355 printf("failed to get handler from %s\n", 356 obj->String.Pointer); 357 return rv; 358 } 359 break; 360 default: 361 printf("unknown power type: %d\n", obj->Type); 362 return AE_OK; 363 } 364 365 rv = acpi_pwr_switch_consumer(cooler, pwr_state); 366 if (rv != AE_BAD_PARAMETER && ACPI_FAILURE(rv)) { 367 printf("failed to change state for %s: %s\n", 368 acpi_name(obj->Reference.Handle), 369 AcpiFormatException(rv)); 370 } 371 372 return AE_OK; 373 } 374 375 /* 376 * acpitz_power_zone: 377 * power on or off the i:th part of the zone zone 378 */ 379 static void 380 acpitz_power_zone(struct acpitz_softc *sc, int i, int on) 381 { 382 KASSERT(i >= 0 && i < ATZ_NLEVELS); 383 384 acpi_foreach_package_object(sc->sc_zone.al[i].Pointer, 385 acpitz_switch_cooler, &on); 386 } 387 388 389 /* 390 * acpitz_power_off: 391 * power off parts of the zone 392 */ 393 static void 394 acpitz_power_off(struct acpitz_softc *sc) 395 { 396 int i; 397 398 for (i = 0 ; i < ATZ_NLEVELS; i++) { 399 if (sc->sc_zone.al[i].Pointer == NULL) 400 continue; 401 acpitz_power_zone(sc, i, 0); 402 } 403 sc->sc_active = ATZ_ACTIVE_NONE; 404 sc->sc_flags &= ~(ATZ_F_CRITICAL|ATZ_F_HOT|ATZ_F_PASSIVE); 405 } 406 407 static void 408 acpitz_get_zone(void *opaque, int verbose) 409 { 410 struct acpitz_softc *sc = opaque; 411 ACPI_STATUS rv; 412 char buf[8]; 413 int i, valid_levels; 414 static int first = 1; 415 416 if (!first) { 417 acpitz_power_off(sc); 418 419 for (i = 0; i < ATZ_NLEVELS; i++) { 420 if (sc->sc_zone.al[i].Pointer != NULL) 421 AcpiOsFree(sc->sc_zone.al[i].Pointer); 422 sc->sc_zone.al[i].Pointer = NULL; 423 } 424 } 425 426 valid_levels = 0; 427 428 for (i = 0; i < ATZ_NLEVELS; i++) { 429 ACPI_OBJECT *obj; 430 431 snprintf(buf, sizeof(buf), "_AC%d", i); 432 if (acpitz_get_integer(sc, buf, &sc->sc_zone.ac[i])) 433 continue; 434 435 snprintf(buf, sizeof(buf), "_AL%d", i); 436 rv = acpi_eval_struct(sc->sc_devnode->ad_handle, buf, 437 &sc->sc_zone.al[i]); 438 if (ACPI_FAILURE(rv)) { 439 printf("failed getting _AL%d", i); 440 sc->sc_zone.al[i].Pointer = NULL; 441 continue; 442 } 443 444 obj = sc->sc_zone.al[i].Pointer; 445 if (obj != NULL) { 446 if (obj->Type != ACPI_TYPE_PACKAGE) { 447 printf("%s: ac%d not package\n", 448 sc->sc_dev.dv_xname, i); 449 AcpiOsFree(obj); 450 sc->sc_zone.al[i].Pointer = NULL; 451 continue; 452 } 453 } 454 455 if (first) 456 printf("%s: active cooling level %d: %sC\n", 457 sc->sc_dev.dv_xname, i, 458 acpitz_celcius_string(sc->sc_zone.ac[i])); 459 460 valid_levels++; 461 } 462 463 if (valid_levels == 0) { 464 sc->sc_flags |= ATZ_F_PASSIVEONLY; 465 if (first) 466 printf("%s: passive cooling mode only\n", 467 sc->sc_dev.dv_xname); 468 } 469 470 acpitz_get_integer(sc, "_TMP", &sc->sc_zone.tmp); 471 acpitz_get_integer(sc, "_CRT", &sc->sc_zone.crt); 472 acpitz_get_integer(sc, "_HOT", &sc->sc_zone.hot); 473 sc->sc_zone.psl.Length = ACPI_ALLOCATE_BUFFER; 474 sc->sc_zone.psl.Pointer = NULL; 475 AcpiEvaluateObject(sc, "_PSL", NULL, &sc->sc_zone.psl); 476 acpitz_get_integer(sc, "_PSV", &sc->sc_zone.psv); 477 acpitz_get_integer(sc, "_TC1", &sc->sc_zone.tc1); 478 acpitz_get_integer(sc, "_TC2", &sc->sc_zone.tc2); 479 480 acpitz_sane_temp(&sc->sc_zone.tmp); 481 acpitz_sane_temp(&sc->sc_zone.crt); 482 acpitz_sane_temp(&sc->sc_zone.hot); 483 acpitz_sane_temp(&sc->sc_zone.psv); 484 485 if (verbose) { 486 printf("%s:", sc->sc_dev.dv_xname); 487 if (sc->sc_zone.crt != ATZ_TMP_INVALID) 488 printf(" critical %sC", 489 acpitz_celcius_string(sc->sc_zone.crt)); 490 if (sc->sc_zone.hot != ATZ_TMP_INVALID) 491 printf(" hot %sC", 492 acpitz_celcius_string(sc->sc_zone.hot)); 493 if (sc->sc_zone.psv != ATZ_TMP_INVALID) 494 printf(" passive %sC", 495 acpitz_celcius_string(sc->sc_zone.tmp)); 496 printf("\n"); 497 } 498 499 for (i = 0; i < ATZ_NLEVELS; i++) 500 acpitz_sane_temp(&sc->sc_zone.ac[i]); 501 502 acpitz_power_off(sc); 503 first = 0; 504 } 505 506 507 static void 508 acpitz_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque) 509 { 510 struct acpitz_softc *sc = opaque; 511 ACPI_OSD_EXEC_CALLBACK func = NULL; 512 const char *name; 513 int rv; 514 515 switch (notify) { 516 case ACPI_NOTIFY_ThermalZoneStatusChanged: 517 func = acpitz_get_status; 518 name = "status check"; 519 break; 520 case ACPI_NOTIFY_ThermalZoneTripPointsChanged: 521 case ACPI_NOTIFY_DeviceListsChanged: 522 func = acpitz_get_zone_quiet; 523 name = "get zone"; 524 break; 525 default: 526 printf("%s: received unhandled notify message 0x%x\n", 527 sc->sc_dev.dv_xname, notify); 528 return; 529 } 530 531 KASSERT(func != NULL); 532 533 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, func, sc); 534 if (rv != AE_OK) 535 printf("%s: unable to queue %s\n", sc->sc_dev.dv_xname, name); 536 537 return; 538 } 539 540 static void 541 acpitz_sane_temp(UINT32 *tmp) 542 { 543 /* Sane temperatures are beteen 0 and 150 C */ 544 if (*tmp < ATZ_ZEROC || *tmp > ATZ_ZEROC + 1500) 545 *tmp = ATZ_TMP_INVALID; 546 } 547 548 static int 549 acpitz_get_integer(struct acpitz_softc *sc, char *cm, UINT32 *val) 550 { 551 ACPI_STATUS rv; 552 ACPI_INTEGER tmp; 553 554 rv = acpi_eval_integer(sc->sc_devnode->ad_handle, cm, &tmp); 555 if (ACPI_FAILURE(rv)) { 556 #ifdef ACPI_DEBUG 557 printf("%s: failed to evaluate %s: %s\n", sc->sc_dev.dv_xname, 558 cm, AcpiFormatException(rv)); 559 #endif 560 *val = ATZ_TMP_INVALID; 561 return 1; 562 } 563 564 *val = tmp; 565 566 return 0; 567 } 568 569 static void 570 acpitz_tick(void *opaque) 571 { 572 struct acpitz_softc *sc = opaque; 573 574 callout_reset(&sc->sc_callout, sc->sc_zone.tzp * hz / 10, 575 acpitz_tick, opaque); 576 AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpitz_get_status, sc); 577 578 return; 579 } 580 581 static void 582 acpitz_init_envsys(struct acpitz_softc *sc) 583 { 584 int i; 585 586 simple_lock_init(&sc->sc_slock); 587 588 for (i = 0; i < ATZ_NUMSENSORS; i++) { 589 sc->sc_data[i].sensor = sc->sc_info[i].sensor = i; 590 sc->sc_data[i].validflags = ENVSYS_FVALID; 591 sc->sc_info[i].validflags = ENVSYS_FVALID; 592 sc->sc_data[i].warnflags = ENVSYS_WARN_OK; 593 } 594 #define INITDATA(index, unit, string) \ 595 sc->sc_data[index].units = unit; \ 596 sc->sc_info[index].units = unit; \ 597 snprintf(sc->sc_info[index].desc, sizeof(sc->sc_info[index].desc), \ 598 "%s %s", sc->sc_dev.dv_xname, string); 599 600 INITDATA(ATZ_SENSOR_TEMP, ENVSYS_STEMP, "temperature"); 601 602 /* hook into sysmon */ 603 sc->sc_sysmon.sme_ranges = acpitz_ranges; 604 sc->sc_sysmon.sme_sensor_info = sc->sc_info; 605 sc->sc_sysmon.sme_sensor_data = sc->sc_data; 606 sc->sc_sysmon.sme_cookie = sc; 607 sc->sc_sysmon.sme_gtredata = acpitz_gtredata; 608 sc->sc_sysmon.sme_streinfo = acpitz_streinfo; 609 sc->sc_sysmon.sme_nsensors = ATZ_NUMSENSORS; 610 sc->sc_sysmon.sme_envsys_version = 1000; 611 612 if (sysmon_envsys_register(&sc->sc_sysmon)) 613 printf("%s: unable to register with sysmon\n", 614 sc->sc_dev.dv_xname); 615 } 616 617 int 618 acpitz_gtredata(struct sysmon_envsys *sme, struct envsys_tre_data *tred) 619 { 620 struct acpitz_softc *sc = sme->sme_cookie; 621 622 simple_lock(&sc->sc_slock); 623 624 *tred = sc->sc_data[tred->sensor]; 625 626 simple_unlock(&sc->sc_slock); 627 628 return 0; 629 } 630 631 static int 632 acpitz_streinfo(struct sysmon_envsys *sme, struct envsys_basic_info *binfo) 633 { 634 635 /* XXX not implemented */ 636 binfo->validflags = 0; 637 638 return 0; 639 } 640
Indexes created Mon Sep 29 18:09:42 GMT 2025