acpi_tz.c revision 1.18
1 /* $NetBSD: acpi_tz.c,v 1.18 2006/02/20 12:17:49 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 1.18 2006/02/20 12:17:49 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 *, const 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 aprint_naive(": ACPI Thermal Zone\n"); 176 aprint_normal(": ACPI Thermal Zone\n"); 177 178 rv = acpi_eval_integer(sc->sc_devnode->ad_handle, "_TZP", &v); 179 if (ACPI_FAILURE(rv)) { 180 aprint_verbose("%s: unable to get polling interval; using default of", 181 sc->sc_dev.dv_xname); 182 sc->sc_zone.tzp = ATZ_TZP_RATE; 183 } else { 184 sc->sc_zone.tzp = v; 185 aprint_verbose("%s: polling interval is", sc->sc_dev.dv_xname); 186 } 187 aprint_verbose(" %d.%ds\n", sc->sc_zone.tzp / 10, sc->sc_zone.tzp % 10); 188 189 /* XXX a value of 0 means "polling is not necessary" */ 190 if (sc->sc_zone.tzp == 0) 191 sc->sc_zone.tzp = ATZ_TZP_RATE; 192 193 sc->sc_zone_expire = ATZ_ZONE_EXPIRE / sc->sc_zone.tzp; 194 195 acpitz_get_zone(sc, 1); 196 acpitz_get_status(sc); 197 198 rv = AcpiInstallNotifyHandler(sc->sc_devnode->ad_handle, 199 ACPI_SYSTEM_NOTIFY, acpitz_notify_handler, sc); 200 if (ACPI_FAILURE(rv)) { 201 aprint_error("%s: unable to install SYSTEM NOTIFY handler: %s\n", 202 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 203 return; 204 } 205 206 callout_init(&sc->sc_callout); 207 callout_reset(&sc->sc_callout, sc->sc_zone.tzp * hz / 10, 208 acpitz_tick, sc); 209 210 acpitz_init_envsys(sc); 211 } 212 213 static void 214 acpitz_get_zone_quiet(void *opaque) 215 { 216 acpitz_get_zone(opaque, 0); 217 } 218 219 static void 220 acpitz_get_status(void *opaque) 221 { 222 struct acpitz_softc *sc = opaque; 223 UINT32 tmp, active; 224 int i, flags; 225 226 sc->sc_zone_expire--; 227 if (sc->sc_zone_expire <= 0) { 228 sc->sc_zone_expire = ATZ_ZONE_EXPIRE / sc->sc_zone.tzp; 229 if (sc->sc_flags & ATZ_F_VERBOSE) 230 printf("%s: force refetch zone\n", sc->sc_dev.dv_xname); 231 acpitz_get_zone(sc, 0); 232 } 233 234 if (acpitz_get_integer(sc, "_TMP", &tmp)) { 235 printf("%s: failed to evaluate _TMP\n", sc->sc_dev.dv_xname); 236 return; 237 } 238 sc->sc_zone.tmp = tmp; 239 /* XXX sanity check for tmp here? */ 240 241 /* 242 * The temperature unit for envsys(4) is microKelvin, so convert to 243 * that from ACPI's microKelvin. Also, the ACPI specification assumes 244 * that K = C + 273.2 rather than the nominal 273.15 used by envsys(4), 245 * so we correct for that too. 246 */ 247 sc->sc_data[ATZ_SENSOR_TEMP].cur.data_us = 248 sc->sc_zone.tmp * 100000 - 50000; 249 sc->sc_data[ATZ_SENSOR_TEMP].validflags |= ENVSYS_FCURVALID; 250 251 if (sc->sc_flags & ATZ_F_VERBOSE) 252 acpitz_print_status(sc); 253 254 if (sc->sc_flags & ATZ_F_PASSIVEONLY) { 255 /* Passive Cooling: XXX not yet */ 256 257 } else { 258 /* Active Cooling */ 259 260 /* temperature threshold: _AC0 > ... > _AC9 */ 261 active = ATZ_ACTIVE_NONE; 262 for (i = ATZ_NLEVELS - 1; i >= 0; i--) { 263 if (sc->sc_zone.ac[i] == ATZ_TMP_INVALID) 264 continue; 265 266 /* we want to keep highest cooling mode in 'active' */ 267 if (sc->sc_zone.ac[i] <= tmp) 268 active = i; 269 } 270 271 flags = sc->sc_flags & ~(ATZ_F_CRITICAL|ATZ_F_HOT|ATZ_F_PASSIVE); 272 if (sc->sc_zone.psv != ATZ_TMP_INVALID && 273 tmp >= sc->sc_zone.psv) 274 flags |= ATZ_F_PASSIVE; 275 if (sc->sc_zone.hot != ATZ_TMP_INVALID && 276 tmp >= sc->sc_zone.hot) 277 flags |= ATZ_F_HOT; 278 if (sc->sc_zone.crt != ATZ_TMP_INVALID && 279 tmp >= sc->sc_zone.crt) 280 flags |= ATZ_F_CRITICAL; 281 282 if (flags != sc->sc_flags) { 283 int changed = (sc->sc_flags ^ flags) & flags; 284 sc->sc_flags = flags; 285 if (changed & ATZ_F_CRITICAL) 286 printf("%s: zone went critical at temp %sC\n", 287 sc->sc_dev.dv_xname, 288 acpitz_celcius_string(tmp)); 289 else if (changed & ATZ_F_HOT) 290 printf("%s: zone went hot at temp %sC\n", 291 sc->sc_dev.dv_xname, 292 acpitz_celcius_string(tmp)); 293 } 294 295 /* power on fans */ 296 if (sc->sc_active != active) { 297 if (sc->sc_active != ATZ_ACTIVE_NONE) 298 acpitz_power_zone(sc, sc->sc_active, 0); 299 300 if (active != ATZ_ACTIVE_NONE) { 301 if (sc->sc_flags & ATZ_F_VERBOSE) 302 printf("%s: active cooling level %u\n", 303 sc->sc_dev.dv_xname, active); 304 acpitz_power_zone(sc, active, 1); 305 } 306 307 sc->sc_active = active; 308 } 309 } 310 311 return; 312 } 313 314 static char * 315 acpitz_celcius_string(int dk) 316 { 317 static char buf[10]; 318 319 snprintf(buf, sizeof(buf), "%d.%d", (dk - ATZ_ZEROC) / 10, 320 (dk - ATZ_ZEROC) % 10); 321 322 return buf; 323 } 324 325 static void 326 acpitz_print_status(struct acpitz_softc *sc) 327 { 328 329 printf("%s: zone temperature is now %sC\n", sc->sc_dev.dv_xname, 330 acpitz_celcius_string(sc->sc_zone.tmp)); 331 332 return; 333 } 334 335 static ACPI_STATUS 336 acpitz_switch_cooler(ACPI_OBJECT *obj, void *arg) 337 { 338 ACPI_HANDLE cooler; 339 ACPI_STATUS rv; 340 int pwr_state, flag; 341 342 flag = *(int *)arg; 343 344 if (flag) 345 pwr_state = ACPI_STATE_D0; 346 else 347 pwr_state = ACPI_STATE_D3; 348 349 switch(obj->Type) { 350 case ACPI_TYPE_ANY: 351 cooler = obj->Reference.Handle; 352 break; 353 case ACPI_TYPE_STRING: 354 rv = AcpiGetHandle(NULL, obj->String.Pointer, &cooler); 355 if (ACPI_FAILURE(rv)) { 356 printf("failed to get handler from %s\n", 357 obj->String.Pointer); 358 return rv; 359 } 360 break; 361 default: 362 printf("unknown power type: %d\n", obj->Type); 363 return AE_OK; 364 } 365 366 rv = acpi_pwr_switch_consumer(cooler, pwr_state); 367 if (rv != AE_BAD_PARAMETER && ACPI_FAILURE(rv)) { 368 printf("failed to change state for %s: %s\n", 369 acpi_name(obj->Reference.Handle), 370 AcpiFormatException(rv)); 371 } 372 373 return AE_OK; 374 } 375 376 /* 377 * acpitz_power_zone: 378 * power on or off the i:th part of the zone zone 379 */ 380 static void 381 acpitz_power_zone(struct acpitz_softc *sc, int i, int on) 382 { 383 KASSERT(i >= 0 && i < ATZ_NLEVELS); 384 385 acpi_foreach_package_object(sc->sc_zone.al[i].Pointer, 386 acpitz_switch_cooler, &on); 387 } 388 389 390 /* 391 * acpitz_power_off: 392 * power off parts of the zone 393 */ 394 static void 395 acpitz_power_off(struct acpitz_softc *sc) 396 { 397 int i; 398 399 for (i = 0 ; i < ATZ_NLEVELS; i++) { 400 if (sc->sc_zone.al[i].Pointer == NULL) 401 continue; 402 acpitz_power_zone(sc, i, 0); 403 } 404 sc->sc_active = ATZ_ACTIVE_NONE; 405 sc->sc_flags &= ~(ATZ_F_CRITICAL|ATZ_F_HOT|ATZ_F_PASSIVE); 406 } 407 408 static void 409 acpitz_get_zone(void *opaque, int verbose) 410 { 411 struct acpitz_softc *sc = opaque; 412 ACPI_STATUS rv; 413 char buf[8]; 414 int i, valid_levels; 415 static int first = 1; 416 417 if (!first) { 418 acpitz_power_off(sc); 419 420 for (i = 0; i < ATZ_NLEVELS; i++) { 421 if (sc->sc_zone.al[i].Pointer != NULL) 422 AcpiOsFree(sc->sc_zone.al[i].Pointer); 423 sc->sc_zone.al[i].Pointer = NULL; 424 } 425 } 426 427 valid_levels = 0; 428 429 for (i = 0; i < ATZ_NLEVELS; i++) { 430 ACPI_OBJECT *obj; 431 432 snprintf(buf, sizeof(buf), "_AC%d", i); 433 if (acpitz_get_integer(sc, buf, &sc->sc_zone.ac[i])) 434 continue; 435 436 snprintf(buf, sizeof(buf), "_AL%d", i); 437 rv = acpi_eval_struct(sc->sc_devnode->ad_handle, buf, 438 &sc->sc_zone.al[i]); 439 if (ACPI_FAILURE(rv)) { 440 printf("failed getting _AL%d", i); 441 sc->sc_zone.al[i].Pointer = NULL; 442 continue; 443 } 444 445 obj = sc->sc_zone.al[i].Pointer; 446 if (obj != NULL) { 447 if (obj->Type != ACPI_TYPE_PACKAGE) { 448 printf("%s: ac%d not package\n", 449 sc->sc_dev.dv_xname, i); 450 AcpiOsFree(obj); 451 sc->sc_zone.al[i].Pointer = NULL; 452 continue; 453 } 454 } 455 456 if (first) 457 printf("%s: active cooling level %d: %sC\n", 458 sc->sc_dev.dv_xname, i, 459 acpitz_celcius_string(sc->sc_zone.ac[i])); 460 461 valid_levels++; 462 } 463 464 if (valid_levels == 0) { 465 sc->sc_flags |= ATZ_F_PASSIVEONLY; 466 if (first) 467 printf("%s: passive cooling mode only\n", 468 sc->sc_dev.dv_xname); 469 } 470 471 acpitz_get_integer(sc, "_TMP", &sc->sc_zone.tmp); 472 acpitz_get_integer(sc, "_CRT", &sc->sc_zone.crt); 473 acpitz_get_integer(sc, "_HOT", &sc->sc_zone.hot); 474 sc->sc_zone.psl.Length = ACPI_ALLOCATE_BUFFER; 475 sc->sc_zone.psl.Pointer = NULL; 476 AcpiEvaluateObject(sc, "_PSL", NULL, &sc->sc_zone.psl); 477 acpitz_get_integer(sc, "_PSV", &sc->sc_zone.psv); 478 acpitz_get_integer(sc, "_TC1", &sc->sc_zone.tc1); 479 acpitz_get_integer(sc, "_TC2", &sc->sc_zone.tc2); 480 481 acpitz_sane_temp(&sc->sc_zone.tmp); 482 acpitz_sane_temp(&sc->sc_zone.crt); 483 acpitz_sane_temp(&sc->sc_zone.hot); 484 acpitz_sane_temp(&sc->sc_zone.psv); 485 486 if (verbose) { 487 printf("%s:", sc->sc_dev.dv_xname); 488 if (sc->sc_zone.crt != ATZ_TMP_INVALID) 489 printf(" critical %sC", 490 acpitz_celcius_string(sc->sc_zone.crt)); 491 if (sc->sc_zone.hot != ATZ_TMP_INVALID) 492 printf(" hot %sC", 493 acpitz_celcius_string(sc->sc_zone.hot)); 494 if (sc->sc_zone.psv != ATZ_TMP_INVALID) 495 printf(" passive %sC", 496 acpitz_celcius_string(sc->sc_zone.tmp)); 497 printf("\n"); 498 } 499 500 for (i = 0; i < ATZ_NLEVELS; i++) 501 acpitz_sane_temp(&sc->sc_zone.ac[i]); 502 503 acpitz_power_off(sc); 504 first = 0; 505 } 506 507 508 static void 509 acpitz_notify_handler(ACPI_HANDLE hdl, UINT32 notify, void *opaque) 510 { 511 struct acpitz_softc *sc = opaque; 512 ACPI_OSD_EXEC_CALLBACK func = NULL; 513 const char *name; 514 int rv; 515 516 switch (notify) { 517 case ACPI_NOTIFY_ThermalZoneStatusChanged: 518 func = acpitz_get_status; 519 name = "status check"; 520 break; 521 case ACPI_NOTIFY_ThermalZoneTripPointsChanged: 522 case ACPI_NOTIFY_DeviceListsChanged: 523 func = acpitz_get_zone_quiet; 524 name = "get zone"; 525 break; 526 default: 527 printf("%s: received unhandled notify message 0x%x\n", 528 sc->sc_dev.dv_xname, notify); 529 return; 530 } 531 532 KASSERT(func != NULL); 533 534 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, func, sc); 535 if (rv != AE_OK) 536 printf("%s: unable to queue %s\n", sc->sc_dev.dv_xname, name); 537 538 return; 539 } 540 541 static void 542 acpitz_sane_temp(UINT32 *tmp) 543 { 544 /* Sane temperatures are beteen 0 and 150 C */ 545 if (*tmp < ATZ_ZEROC || *tmp > ATZ_ZEROC + 1500) 546 *tmp = ATZ_TMP_INVALID; 547 } 548 549 static int 550 acpitz_get_integer(struct acpitz_softc *sc, const char *cm, UINT32 *val) 551 { 552 ACPI_STATUS rv; 553 ACPI_INTEGER tmp; 554 555 rv = acpi_eval_integer(sc->sc_devnode->ad_handle, cm, &tmp); 556 if (ACPI_FAILURE(rv)) { 557 #ifdef ACPI_DEBUG 558 printf("%s: failed to evaluate %s: %s\n", sc->sc_dev.dv_xname, 559 cm, AcpiFormatException(rv)); 560 #endif 561 *val = ATZ_TMP_INVALID; 562 return 1; 563 } 564 565 *val = tmp; 566 567 return 0; 568 } 569 570 static void 571 acpitz_tick(void *opaque) 572 { 573 struct acpitz_softc *sc = opaque; 574 575 callout_reset(&sc->sc_callout, sc->sc_zone.tzp * hz / 10, 576 acpitz_tick, opaque); 577 AcpiOsQueueForExecution(OSD_PRIORITY_LO, acpitz_get_status, sc); 578 579 return; 580 } 581 582 static void 583 acpitz_init_envsys(struct acpitz_softc *sc) 584 { 585 int i; 586 587 simple_lock_init(&sc->sc_slock); 588 589 for (i = 0; i < ATZ_NUMSENSORS; i++) { 590 sc->sc_data[i].sensor = sc->sc_info[i].sensor = i; 591 sc->sc_data[i].validflags = ENVSYS_FVALID; 592 sc->sc_info[i].validflags = ENVSYS_FVALID; 593 sc->sc_data[i].warnflags = ENVSYS_WARN_OK; 594 } 595 #define INITDATA(index, unit, string) \ 596 sc->sc_data[index].units = unit; \ 597 sc->sc_info[index].units = unit; \ 598 snprintf(sc->sc_info[index].desc, sizeof(sc->sc_info[index].desc), \ 599 "%s %s", sc->sc_dev.dv_xname, string); 600 601 INITDATA(ATZ_SENSOR_TEMP, ENVSYS_STEMP, "temperature"); 602 603 /* hook into sysmon */ 604 sc->sc_sysmon.sme_ranges = acpitz_ranges; 605 sc->sc_sysmon.sme_sensor_info = sc->sc_info; 606 sc->sc_sysmon.sme_sensor_data = sc->sc_data; 607 sc->sc_sysmon.sme_cookie = sc; 608 sc->sc_sysmon.sme_gtredata = acpitz_gtredata; 609 sc->sc_sysmon.sme_streinfo = acpitz_streinfo; 610 sc->sc_sysmon.sme_nsensors = ATZ_NUMSENSORS; 611 sc->sc_sysmon.sme_envsys_version = 1000; 612 613 if (sysmon_envsys_register(&sc->sc_sysmon)) 614 printf("%s: unable to register with sysmon\n", 615 sc->sc_dev.dv_xname); 616 } 617 618 int 619 acpitz_gtredata(struct sysmon_envsys *sme, struct envsys_tre_data *tred) 620 { 621 struct acpitz_softc *sc = sme->sme_cookie; 622 623 simple_lock(&sc->sc_slock); 624 625 *tred = sc->sc_data[tred->sensor]; 626 627 simple_unlock(&sc->sc_slock); 628 629 return 0; 630 } 631 632 static int 633 acpitz_streinfo(struct sysmon_envsys *sme, struct envsys_basic_info *binfo) 634 { 635 636 /* XXX not implemented */ 637 binfo->validflags = 0; 638 639 return 0; 640 } 641
Indexes created Mon Sep 29 21:09:56 GMT 2025