acpi.c revision 1.101.16.11
1 /* $NetBSD: acpi.c,v 1.101.16.11 2007/09/10 00:25:17 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum of By Noon Software, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright 2001, 2003 Wasabi Systems, Inc. 41 * All rights reserved. 42 * 43 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed for the NetBSD Project by 56 * Wasabi Systems, Inc. 57 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 58 * or promote products derived from this software without specific prior 59 * written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 63 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 64 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 65 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 66 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 67 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 68 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 69 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 70 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 71 * POSSIBILITY OF SUCH DAMAGE. 72 */ 73 74 /* 75 * Autoconfiguration support for the Intel ACPI Component Architecture 76 * ACPI reference implementation. 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.101.16.11 2007/09/10 00:25:17 christos Exp $"); 81 82 #include "opt_acpi.h" 83 #include "opt_pcifixup.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/device.h> 88 #include <sys/malloc.h> 89 #include <sys/mutex.h> 90 #include <sys/kernel.h> 91 #include <sys/proc.h> 92 #include <sys/sysctl.h> 93 94 #include <dev/acpi/acpica.h> 95 #include <dev/acpi/acpireg.h> 96 #include <dev/acpi/acpivar.h> 97 #include <dev/acpi/acpi_osd.h> 98 #include <dev/acpi/acpi_timer.h> 99 #ifdef ACPIVERBOSE 100 #include <dev/acpi/acpidevs_data.h> 101 #endif 102 103 #if defined(ACPI_PCI_FIXUP) 104 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 105 #endif 106 107 #ifdef PCI_INTR_FIXUP_DISABLED 108 #include <dev/pci/pcidevs.h> 109 #endif 110 111 MALLOC_DECLARE(M_ACPI); 112 113 #include <machine/acpi_machdep.h> 114 115 #ifdef ACPI_DEBUGGER 116 #define ACPI_DBGR_INIT 0x01 117 #define ACPI_DBGR_TABLES 0x02 118 #define ACPI_DBGR_ENABLE 0x04 119 #define ACPI_DBGR_PROBE 0x08 120 #define ACPI_DBGR_RUNNING 0x10 121 122 static int acpi_dbgr = 0x00; 123 #endif 124 125 static int acpi_match(struct device *, struct cfdata *, void *); 126 static void acpi_attach(struct device *, struct device *, void *); 127 128 static int acpi_print(void *aux, const char *); 129 130 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 131 132 extern struct cfdriver acpi_cd; 133 134 CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 135 acpi_match, acpi_attach, NULL, NULL); 136 137 /* 138 * This is a flag we set when the ACPI subsystem is active. Machine 139 * dependent code may wish to skip other steps (such as attaching 140 * subsystems that ACPI supercedes) when ACPI is active. 141 */ 142 int acpi_active; 143 int acpi_force_load; 144 145 /* 146 * Pointer to the ACPI subsystem's state. There can be only 147 * one ACPI instance. 148 */ 149 struct acpi_softc *acpi_softc; 150 151 /* 152 * Locking stuff. 153 */ 154 static kmutex_t acpi_slock; 155 static int acpi_locked; 156 extern kmutex_t acpi_interrupt_list_mtx; 157 158 /* 159 * sysctl-related information 160 */ 161 162 static int acpi_node = CTL_EOL; 163 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 164 static int acpi_sleepstate = ACPI_STATE_S0; 165 166 /* 167 * Prototypes. 168 */ 169 static void acpi_shutdown(void *); 170 static void acpi_build_tree(struct acpi_softc *); 171 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 172 173 static void acpi_enable_fixed_events(struct acpi_softc *); 174 175 /* 176 * acpi_probe: 177 * 178 * Probe for ACPI support. This is called by the 179 * machine-dependent ACPI front-end. All of the 180 * actual work is done by ACPICA. 181 * 182 * NOTE: This is not an autoconfiguration interface function. 183 */ 184 int 185 acpi_probe(void) 186 { 187 static int beenhere; 188 ACPI_STATUS rv; 189 190 if (beenhere != 0) 191 panic("acpi_probe: ACPI has already been probed"); 192 beenhere = 1; 193 194 mutex_init(&acpi_slock, MUTEX_DRIVER, IPL_NONE); 195 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DRIVER, IPL_NONE); 196 acpi_locked = 0; 197 198 /* 199 * Start up ACPICA. 200 */ 201 #ifdef ACPI_DEBUGGER 202 if (acpi_dbgr & ACPI_DBGR_INIT) 203 acpi_osd_debugger(); 204 #endif 205 206 rv = AcpiInitializeSubsystem(); 207 if (ACPI_FAILURE(rv)) { 208 printf("ACPI: unable to initialize ACPICA: %s\n", 209 AcpiFormatException(rv)); 210 return 0; 211 } 212 213 #ifdef ACPI_DEBUGGER 214 if (acpi_dbgr & ACPI_DBGR_TABLES) 215 acpi_osd_debugger(); 216 #endif 217 218 rv = AcpiLoadTables(); 219 if (ACPI_FAILURE(rv)) { 220 printf("ACPI: unable to load tables: %s\n", 221 AcpiFormatException(rv)); 222 return 0; 223 } 224 225 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 226 printf("ACPI: BIOS implementation in listed as broken:\n"); 227 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 228 "AslId <%4.4s,%08x>\n", 229 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 230 AcpiGbl_XSDT->OemRevision, 231 AcpiGbl_XSDT->AslCompilerId, 232 AcpiGbl_XSDT->AslCompilerRevision); 233 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 234 return 0; 235 } 236 237 /* Install the default address space handlers. */ 238 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 239 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 240 if (ACPI_FAILURE(rv)) { 241 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 242 AcpiFormatException(rv)); 243 return 0; 244 } 245 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 246 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 247 if (ACPI_FAILURE(rv)) { 248 printf("ACPI: unable to initialise SystemIO handler: %s\n", 249 AcpiFormatException(rv)); 250 return 0; 251 } 252 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 253 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 254 if (ACPI_FAILURE(rv)) { 255 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 256 AcpiFormatException(rv)); 257 return 0; 258 } 259 260 /* 261 * Looks like we have ACPI! 262 */ 263 264 return 1; 265 } 266 267 static int 268 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 269 { 270 struct cfattach *ca; 271 272 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 273 return (ca == &acpi_ca); 274 } 275 276 int 277 acpi_check(device_t parent, const char *ifattr) 278 { 279 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 280 } 281 282 ACPI_STATUS 283 acpi_OsGetRootPointer(UINT32 Flags, ACPI_POINTER *PhysicalAddress) 284 { 285 ACPI_STATUS rv; 286 287 /* 288 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 289 * 290 * IA-64: Use the EFI. 291 * 292 * We let MD code handle this since there are multiple 293 * ways to do it. 294 */ 295 296 rv = acpi_md_OsGetRootPointer(Flags, PhysicalAddress); 297 298 if (acpi_root_pointer == 0 && ACPI_SUCCESS(rv)) 299 acpi_root_pointer = 300 (uint64_t)PhysicalAddress->Pointer.Physical; 301 302 return rv; 303 } 304 305 /* 306 * acpi_match: 307 * 308 * Autoconfiguration `match' routine. 309 */ 310 static int 311 acpi_match(struct device *parent, struct cfdata *match, 312 void *aux) 313 { 314 /* 315 * XXX Check other locators? Hard to know -- machine 316 * dependent code has already checked for the presence 317 * of ACPI by calling acpi_probe(), so I suppose we 318 * don't really have to do anything else. 319 */ 320 return 1; 321 } 322 323 /* 324 * acpi_attach: 325 * 326 * Autoconfiguration `attach' routine. Finish initializing 327 * ACPICA (some initialization was done in acpi_probe(), 328 * which was required to check for the presence of ACPI), 329 * and enable the ACPI subsystem. 330 */ 331 static void 332 acpi_attach(struct device *parent, struct device *self, void *aux) 333 { 334 struct acpi_softc *sc = (void *) self; 335 struct acpibus_attach_args *aa = aux; 336 ACPI_STATUS rv; 337 338 aprint_naive(": Advanced Configuration and Power Interface\n"); 339 aprint_normal(": Advanced Configuration and Power Interface\n"); 340 341 if (acpi_softc != NULL) 342 panic("acpi_attach: ACPI has already been attached"); 343 344 sysmon_power_settype("acpi"); 345 346 aprint_verbose("%s: using Intel ACPI CA subsystem version %08x\n", 347 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 348 349 aprint_verbose("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 350 sc->sc_dev.dv_xname, 351 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 352 AcpiGbl_XSDT->OemRevision, 353 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 354 355 sc->sc_quirks = acpi_find_quirks(); 356 357 sc->sc_iot = aa->aa_iot; 358 sc->sc_memt = aa->aa_memt; 359 sc->sc_pc = aa->aa_pc; 360 sc->sc_pciflags = aa->aa_pciflags; 361 sc->sc_ic = aa->aa_ic; 362 363 acpi_softc = sc; 364 365 /* 366 * Register null power management handler 367 */ 368 (void)pnp_register(self, pnp_generic_power); 369 370 /* 371 * Bring ACPI on-line. 372 */ 373 #ifdef ACPI_DEBUGGER 374 if (acpi_dbgr & ACPI_DBGR_ENABLE) 375 acpi_osd_debugger(); 376 #endif 377 378 rv = AcpiEnableSubsystem(0); 379 if (ACPI_FAILURE(rv)) { 380 aprint_error("%s: unable to enable ACPI: %s\n", 381 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 382 return; 383 } 384 385 /* early EC handler initialization if ECDT table is available */ 386 #if NACPIEC > 0 387 acpiec_early_attach(&sc->sc_dev); 388 #endif 389 390 rv = AcpiInitializeObjects(0); 391 if (ACPI_FAILURE(rv)) { 392 aprint_error("%s: unable to initialize ACPI objects: %s\n", 393 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 394 return; 395 } 396 acpi_active = 1; 397 398 /* Our current state is "awake". */ 399 sc->sc_sleepstate = ACPI_STATE_S0; 400 401 /* Show SCI interrupt. */ 402 if (AcpiGbl_FADT != NULL) 403 aprint_verbose("%s: SCI interrupting at int %d\n", 404 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 405 406 /* 407 * Check for fixed-hardware features. 408 */ 409 acpi_enable_fixed_events(sc); 410 acpitimer_init(); 411 412 /* 413 * Scan the namespace and build our device tree. 414 */ 415 #ifdef ACPI_DEBUGGER 416 if (acpi_dbgr & ACPI_DBGR_PROBE) 417 acpi_osd_debugger(); 418 #endif 419 acpi_md_callback(); 420 acpi_build_tree(sc); 421 422 if (acpi_root_pointer != 0 && acpi_node != CTL_EOL) { 423 (void)sysctl_createv(NULL, 0, NULL, NULL, 424 CTLFLAG_IMMEDIATE, 425 CTLTYPE_QUAD, "root", NULL, NULL, 426 acpi_root_pointer, NULL, 0, 427 CTL_HW, acpi_node, CTL_CREATE, CTL_EOL); 428 } 429 430 431 /* 432 * Register a shutdown hook that disables certain ACPI 433 * events that might happen and confuse us while we're 434 * trying to shut down. 435 */ 436 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 437 if (sc->sc_sdhook == NULL) 438 aprint_error("%s: WARNING: unable to register shutdown hook\n", 439 sc->sc_dev.dv_xname); 440 441 #ifdef ACPI_DEBUGGER 442 if (acpi_dbgr & ACPI_DBGR_RUNNING) 443 acpi_osd_debugger(); 444 #endif 445 } 446 447 /* 448 * acpi_shutdown: 449 * 450 * Shutdown hook for ACPI -- disable some events that 451 * might confuse us. 452 */ 453 static void 454 acpi_shutdown(void *arg) 455 { 456 /* nothing */ 457 } 458 459 #if 0 460 /* 461 * acpi_disable: 462 * 463 * Disable ACPI. 464 */ 465 static ACPI_STATUS 466 acpi_disable(struct acpi_softc *sc) 467 { 468 ACPI_STATUS rv = AE_OK; 469 470 if (acpi_active) { 471 rv = AcpiDisable(); 472 if (ACPI_SUCCESS(rv)) 473 acpi_active = 0; 474 } 475 return rv; 476 } 477 #endif 478 479 struct acpi_make_devnode_state { 480 struct acpi_softc *softc; 481 struct acpi_scope *scope; 482 }; 483 484 /* 485 * acpi_build_tree: 486 * 487 * Scan relevant portions of the ACPI namespace and attach 488 * child devices. 489 */ 490 static void 491 acpi_build_tree(struct acpi_softc *sc) 492 { 493 static const char *scopes[] = { 494 "\\_PR_", /* ACPI 1.0 processor namespace */ 495 "\\_SB_", /* system bus namespace */ 496 "\\_SI_", /* system indicator namespace */ 497 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 498 NULL, 499 }; 500 struct acpi_attach_args aa; 501 struct acpi_make_devnode_state state; 502 struct acpi_scope *as; 503 struct acpi_devnode *ad; 504 ACPI_HANDLE parent; 505 ACPI_STATUS rv; 506 int i; 507 508 TAILQ_INIT(&sc->sc_scopes); 509 510 state.softc = sc; 511 512 /* 513 * Scan the namespace and build our tree. 514 */ 515 for (i = 0; scopes[i] != NULL; i++) { 516 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 517 as->as_name = scopes[i]; 518 TAILQ_INIT(&as->as_devnodes); 519 520 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 521 522 state.scope = as; 523 524 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 525 &parent); 526 if (ACPI_SUCCESS(rv)) { 527 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 528 acpi_make_devnode, &state, NULL); 529 } 530 531 /* Now, for this namespace, try and attach the devices. */ 532 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 533 aa.aa_node = ad; 534 aa.aa_iot = sc->sc_iot; 535 aa.aa_memt = sc->sc_memt; 536 aa.aa_pc = sc->sc_pc; 537 aa.aa_pciflags = sc->sc_pciflags; 538 aa.aa_ic = sc->sc_ic; 539 540 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 541 /* 542 * XXX We only attach devices which are: 543 * 544 * - present 545 * - enabled 546 * - functioning properly 547 * 548 * However, if enabled, it's decoding resources, 549 * so we should claim them, if possible. 550 * Requires changes to bus_space(9). 551 */ 552 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 553 ACPI_VALID_STA && 554 (ad->ad_devinfo->CurrentStatus & 555 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 556 ACPI_STA_DEV_OK)) != 557 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 558 ACPI_STA_DEV_OK)) 559 continue; 560 } 561 562 /* 563 * XXX Same problem as above... 564 */ 565 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 566 continue; 567 568 ad->ad_device = config_found_ia(&sc->sc_dev, 569 "acpinodebus", &aa, acpi_print); 570 } 571 } 572 config_found_ia(&sc->sc_dev, "acpiapmbus", NULL, NULL); 573 } 574 575 #ifdef ACPI_ACTIVATE_DEV 576 static void 577 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 578 { 579 ACPI_STATUS rv; 580 ACPI_BUFFER buf; 581 582 buf.Pointer = NULL; 583 buf.Length = ACPI_ALLOCATE_BUFFER; 584 585 #ifdef ACPI_DEBUG 586 aprint_normal("acpi_activate_device: %s, old status=%x\n", 587 (*di)->HardwareId.Value, (*di)->CurrentStatus); 588 #endif 589 590 rv = acpi_allocate_resources(handle); 591 if (ACPI_FAILURE(rv)) { 592 aprint_error("acpi: activate failed for %s\n", 593 (*di)->HardwareId.Value); 594 } else { 595 aprint_verbose("acpi: activated %s\n", 596 (*di)->HardwareId.Value); 597 } 598 599 (void)AcpiGetObjectInfo(handle, &buf); 600 AcpiOsFree(*di); 601 *di = buf.Pointer; 602 603 #ifdef ACPI_DEBUG 604 aprint_normal("acpi_activate_device: %s, new status=%x\n", 605 (*di)->HardwareId.Value, (*di)->CurrentStatus); 606 #endif 607 } 608 #endif /* ACPI_ACTIVATE_DEV */ 609 610 /* 611 * acpi_make_devnode: 612 * 613 * Make an ACPI devnode. 614 */ 615 static ACPI_STATUS 616 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 617 void **status) 618 { 619 struct acpi_make_devnode_state *state = context; 620 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 621 struct acpi_softc *sc = state->softc; 622 #endif 623 struct acpi_scope *as = state->scope; 624 struct acpi_devnode *ad; 625 ACPI_OBJECT_TYPE type; 626 ACPI_BUFFER buf; 627 ACPI_DEVICE_INFO *devinfo; 628 ACPI_STATUS rv; 629 ACPI_NAME_UNION *anu; 630 int i, clear = 0; 631 632 rv = AcpiGetType(handle, &type); 633 if (ACPI_SUCCESS(rv)) { 634 buf.Pointer = NULL; 635 buf.Length = ACPI_ALLOCATE_BUFFER; 636 rv = AcpiGetObjectInfo(handle, &buf); 637 if (ACPI_FAILURE(rv)) { 638 #ifdef ACPI_DEBUG 639 aprint_normal("%s: AcpiGetObjectInfo failed: %s\n", 640 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 641 #endif 642 goto out; /* XXX why return OK */ 643 } 644 645 devinfo = buf.Pointer; 646 647 switch (type) { 648 case ACPI_TYPE_DEVICE: 649 #ifdef ACPI_ACTIVATE_DEV 650 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 651 (ACPI_VALID_STA|ACPI_VALID_HID) && 652 (devinfo->CurrentStatus & 653 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 654 ACPI_STA_DEV_PRESENT) 655 acpi_activate_device(handle, &devinfo); 656 657 /* FALLTHROUGH */ 658 #endif 659 660 case ACPI_TYPE_PROCESSOR: 661 case ACPI_TYPE_THERMAL: 662 case ACPI_TYPE_POWER: 663 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 664 if (ad == NULL) 665 return AE_NO_MEMORY; 666 667 ad->ad_devinfo = devinfo; 668 ad->ad_handle = handle; 669 ad->ad_level = level; 670 ad->ad_scope = as; 671 ad->ad_type = type; 672 673 anu = (ACPI_NAME_UNION *)&devinfo->Name; 674 ad->ad_name[4] = '\0'; 675 for (i = 3, clear = 0; i >= 0; i--) { 676 if (!clear && anu->Ascii[i] == '_') 677 ad->ad_name[i] = '\0'; 678 else { 679 ad->ad_name[i] = anu->Ascii[i]; 680 clear = 1; 681 } 682 } 683 if (ad->ad_name[0] == '\0') 684 ad->ad_name[0] = '_'; 685 686 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 687 688 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 689 goto out; 690 691 #ifdef ACPI_EXTRA_DEBUG 692 aprint_normal("%s: HID %s found in scope %s level %d\n", 693 sc->sc_dev.dv_xname, 694 ad->ad_devinfo->HardwareId.Value, 695 as->as_name, ad->ad_level); 696 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 697 aprint_normal(" UID %s\n", 698 ad->ad_devinfo->UniqueId.Value); 699 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 700 aprint_normal(" ADR 0x%016qx\n", 701 ad->ad_devinfo->Address); 702 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 703 aprint_normal(" STA 0x%08x\n", 704 ad->ad_devinfo->CurrentStatus); 705 #endif 706 } 707 } 708 out: 709 return AE_OK; 710 } 711 712 /* 713 * acpi_print: 714 * 715 * Autoconfiguration print routine for ACPI node bus. 716 */ 717 static int 718 acpi_print(void *aux, const char *pnp) 719 { 720 struct acpi_attach_args *aa = aux; 721 ACPI_STATUS rv; 722 723 if (pnp) { 724 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 725 char *pnpstr = 726 aa->aa_node->ad_devinfo->HardwareId.Value; 727 char *str; 728 729 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 730 pnpstr); 731 rv = acpi_eval_string(aa->aa_node->ad_handle, 732 "_STR", &str); 733 if (ACPI_SUCCESS(rv)) { 734 aprint_normal("[%s] ", str); 735 AcpiOsFree(str); 736 } 737 #ifdef ACPIVERBOSE 738 else { 739 int i; 740 741 for (i = 0; i < sizeof(acpi_knowndevs) / 742 sizeof(acpi_knowndevs[0]); i++) { 743 if (strcmp(acpi_knowndevs[i].pnp, 744 pnpstr) == 0) { 745 aprint_normal("[%s] ", 746 acpi_knowndevs[i].str); 747 } 748 } 749 } 750 751 #endif 752 aprint_normal("at %s", pnp); 753 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 754 aprint_normal("%s (ACPI Object Type '%s' " 755 "[0x%02x]) ", aa->aa_node->ad_name, 756 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 757 aa->aa_node->ad_devinfo->Type); 758 aprint_normal("at %s", pnp); 759 } else 760 return 0; 761 } else { 762 aprint_normal(" (%s", aa->aa_node->ad_name); 763 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 764 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.Value); 765 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 766 const char *uid; 767 768 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 769 if (uid[0] == '\0') 770 uid = "<null>"; 771 aprint_normal("-%s", uid); 772 } 773 } 774 aprint_normal(")"); 775 } 776 777 return UNCONF; 778 } 779 780 /***************************************************************************** 781 * ACPI fixed-hardware feature handlers 782 *****************************************************************************/ 783 784 static UINT32 acpi_fixed_button_handler(void *); 785 static void acpi_fixed_button_pressed(void *); 786 787 /* 788 * acpi_enable_fixed_events: 789 * 790 * Enable any fixed-hardware feature handlers. 791 */ 792 static void 793 acpi_enable_fixed_events(struct acpi_softc *sc) 794 { 795 static int beenhere; 796 ACPI_STATUS rv; 797 798 KASSERT(beenhere == 0); 799 beenhere = 1; 800 801 /* 802 * Check for fixed-hardware buttons. 803 */ 804 805 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 806 aprint_verbose("%s: fixed-feature power button present\n", 807 sc->sc_dev.dv_xname); 808 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 809 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 810 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 811 aprint_error("%s: unable to register fixed power " 812 "button with sysmon\n", sc->sc_dev.dv_xname); 813 } else { 814 rv = AcpiInstallFixedEventHandler( 815 ACPI_EVENT_POWER_BUTTON, 816 acpi_fixed_button_handler, &sc->sc_smpsw_power); 817 if (ACPI_FAILURE(rv)) { 818 aprint_error("%s: unable to install handler " 819 "for fixed power button: %s\n", 820 sc->sc_dev.dv_xname, 821 AcpiFormatException(rv)); 822 } 823 } 824 } 825 826 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 827 aprint_verbose("%s: fixed-feature sleep button present\n", 828 sc->sc_dev.dv_xname); 829 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 830 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 831 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 832 aprint_error("%s: unable to register fixed sleep " 833 "button with sysmon\n", sc->sc_dev.dv_xname); 834 } else { 835 rv = AcpiInstallFixedEventHandler( 836 ACPI_EVENT_SLEEP_BUTTON, 837 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 838 if (ACPI_FAILURE(rv)) { 839 aprint_error("%s: unable to install handler " 840 "for fixed sleep button: %s\n", 841 sc->sc_dev.dv_xname, 842 AcpiFormatException(rv)); 843 } 844 } 845 } 846 } 847 848 /* 849 * acpi_fixed_button_handler: 850 * 851 * Event handler for the fixed buttons. 852 */ 853 static UINT32 854 acpi_fixed_button_handler(void *context) 855 { 856 struct sysmon_pswitch *smpsw = context; 857 int rv; 858 859 #ifdef ACPI_BUT_DEBUG 860 printf("%s: fixed button handler\n", smpsw->smpsw_name); 861 #endif 862 863 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 864 acpi_fixed_button_pressed, smpsw); 865 if (ACPI_FAILURE(rv)) 866 printf("%s: WARNING: unable to queue fixed button pressed " 867 "callback: %s\n", smpsw->smpsw_name, 868 AcpiFormatException(rv)); 869 870 return ACPI_INTERRUPT_HANDLED; 871 } 872 873 /* 874 * acpi_fixed_button_pressed: 875 * 876 * Deal with a fixed button being pressed. 877 */ 878 static void 879 acpi_fixed_button_pressed(void *context) 880 { 881 struct sysmon_pswitch *smpsw = context; 882 883 #ifdef ACPI_BUT_DEBUG 884 printf("%s: fixed button pressed, calling sysmon\n", 885 smpsw->smpsw_name); 886 #endif 887 888 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 889 } 890 891 /***************************************************************************** 892 * ACPI utility routines. 893 *****************************************************************************/ 894 895 /* 896 * acpi_eval_integer: 897 * 898 * Evaluate an integer object. 899 */ 900 ACPI_STATUS 901 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 902 { 903 ACPI_STATUS rv; 904 ACPI_BUFFER buf; 905 ACPI_OBJECT param; 906 907 if (handle == NULL) 908 handle = ACPI_ROOT_OBJECT; 909 910 buf.Pointer = ¶m; 911 buf.Length = sizeof(param); 912 913 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 914 if (ACPI_SUCCESS(rv)) 915 *valp = param.Integer.Value; 916 917 return rv; 918 } 919 920 /* 921 * acpi_eval_string: 922 * 923 * Evaluate a (Unicode) string object. 924 */ 925 ACPI_STATUS 926 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 927 { 928 ACPI_STATUS rv; 929 ACPI_BUFFER buf; 930 931 if (handle == NULL) 932 handle = ACPI_ROOT_OBJECT; 933 934 buf.Pointer = NULL; 935 buf.Length = ACPI_ALLOCATE_BUFFER; 936 937 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 938 if (ACPI_SUCCESS(rv)) { 939 ACPI_OBJECT *param = buf.Pointer; 940 const char *ptr = param->String.Pointer; 941 size_t len = param->String.Length; 942 if ((*stringp = AcpiOsAllocate(len)) == NULL) 943 rv = AE_NO_MEMORY; 944 else 945 (void)memcpy(*stringp, ptr, len); 946 AcpiOsFree(param); 947 } 948 949 return rv; 950 } 951 952 953 /* 954 * acpi_eval_struct: 955 * 956 * Evaluate a more complex structure. 957 * Caller must free buf.Pointer by AcpiOsFree(). 958 */ 959 ACPI_STATUS 960 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 961 { 962 ACPI_STATUS rv; 963 964 if (handle == NULL) 965 handle = ACPI_ROOT_OBJECT; 966 967 bufp->Pointer = NULL; 968 bufp->Length = ACPI_ALLOCATE_BUFFER; 969 970 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 971 972 return rv; 973 } 974 975 /* 976 * acpi_foreach_package_object: 977 * 978 * Iterate over all objects in a in a packages and pass then all 979 * to a function. If the called function returns non AE_OK, the 980 * iteration is stopped and that value is returned. 981 */ 982 983 ACPI_STATUS 984 acpi_foreach_package_object(ACPI_OBJECT *pkg, 985 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 986 void *arg) 987 { 988 ACPI_STATUS rv = AE_OK; 989 int i; 990 991 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 992 return AE_BAD_PARAMETER; 993 994 for (i = 0; i < pkg->Package.Count; i++) { 995 rv = (*func)(&pkg->Package.Elements[i], arg); 996 if (ACPI_FAILURE(rv)) 997 break; 998 } 999 1000 return rv; 1001 } 1002 1003 const char * 1004 acpi_name(ACPI_HANDLE handle) 1005 { 1006 static char buffer[80]; 1007 ACPI_BUFFER buf; 1008 ACPI_STATUS rv; 1009 1010 buf.Length = sizeof(buffer); 1011 buf.Pointer = buffer; 1012 1013 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1014 if (ACPI_FAILURE(rv)) 1015 return "(unknown acpi path)"; 1016 return buffer; 1017 } 1018 1019 /* 1020 * acpi_get: 1021 * 1022 * Fetch data info the specified (empty) ACPI buffer. 1023 * Caller must free buf.Pointer by AcpiOsFree(). 1024 */ 1025 ACPI_STATUS 1026 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1027 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1028 { 1029 buf->Pointer = NULL; 1030 buf->Length = ACPI_ALLOCATE_BUFFER; 1031 1032 return (*getit)(handle, buf); 1033 } 1034 1035 1036 /* 1037 * acpi_match_hid 1038 * 1039 * Match given ids against _HID and _CIDs 1040 */ 1041 int 1042 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1043 { 1044 int i; 1045 1046 while (*ids) { 1047 if (ad->Valid & ACPI_VALID_HID) { 1048 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 1049 return 1; 1050 } 1051 1052 if (ad->Valid & ACPI_VALID_CID) { 1053 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1054 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1055 return 1; 1056 } 1057 } 1058 ids++; 1059 } 1060 1061 return 0; 1062 } 1063 1064 /* 1065 * acpi_set_wake_gpe 1066 * 1067 * Set GPE as both Runtime and Wake 1068 */ 1069 void 1070 acpi_set_wake_gpe(ACPI_HANDLE handle) 1071 { 1072 ACPI_BUFFER buf; 1073 ACPI_STATUS rv; 1074 ACPI_OBJECT *p, *elt; 1075 1076 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1077 if (ACPI_FAILURE(rv)) 1078 return; /* just ignore */ 1079 1080 p = buf.Pointer; 1081 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1082 goto out; /* just ignore */ 1083 1084 elt = p->Package.Elements; 1085 1086 /* TBD: package support */ 1087 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1088 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1089 1090 out: 1091 AcpiOsFree(buf.Pointer); 1092 } 1093 1094 1095 /***************************************************************************** 1096 * ACPI sleep support. 1097 *****************************************************************************/ 1098 1099 static int 1100 is_available_state(struct acpi_softc *sc, int state) 1101 { 1102 UINT8 type_a, type_b; 1103 1104 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1105 &type_a, &type_b)); 1106 } 1107 1108 /* 1109 * acpi_enter_sleep_state: 1110 * 1111 * enter to the specified sleep state. 1112 */ 1113 1114 ACPI_STATUS 1115 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1116 { 1117 int err; 1118 ACPI_STATUS ret = AE_OK; 1119 1120 if (state == acpi_sleepstate) 1121 return AE_OK; 1122 1123 aprint_normal("%s: entering state %d\n", sc->sc_dev.dv_xname, state); 1124 1125 switch (state) { 1126 case ACPI_STATE_S0: 1127 break; 1128 case ACPI_STATE_S1: 1129 case ACPI_STATE_S2: 1130 case ACPI_STATE_S3: 1131 case ACPI_STATE_S4: 1132 if (!is_available_state(sc, state)) { 1133 aprint_error("%s: cannot enter the sleep state (%d).\n", 1134 sc->sc_dev.dv_xname, state); 1135 break; 1136 } 1137 1138 if (state != ACPI_STATE_S1) 1139 pnp_global_transition(PNP_STATE_D3); 1140 1141 ret = AcpiEnterSleepStatePrep(state); 1142 if (ACPI_FAILURE(ret)) { 1143 aprint_error("%s: failed preparing to sleep (%s)\n", 1144 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1145 break; 1146 } 1147 1148 DELAY(1000000); 1149 acpi_sleepstate = state; 1150 if (state == ACPI_STATE_S1) { 1151 /* just enter the state */ 1152 acpi_md_OsDisableInterrupt(); 1153 AcpiEnterSleepState((UINT8)state); 1154 } else { 1155 err = acpi_md_sleep(state); 1156 if (err == 0 && state == ACPI_STATE_S3) 1157 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1158 if (state == ACPI_STATE_S4) 1159 AcpiEnable(); 1160 } 1161 if (state != ACPI_STATE_S1) 1162 pnp_global_transition(PNP_STATE_D0); 1163 AcpiLeaveSleepState((UINT8)state); 1164 1165 break; 1166 case ACPI_STATE_S5: 1167 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1168 if (ACPI_FAILURE(ret)) { 1169 aprint_error("%s: failed preparing to sleep (%s)\n", 1170 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1171 break; 1172 } 1173 DELAY(1000000); 1174 acpi_sleepstate = state; 1175 acpi_md_OsDisableInterrupt(); 1176 AcpiEnterSleepState(ACPI_STATE_S5); 1177 aprint_error("%s: WARNING powerdown failed!\n", 1178 sc->sc_dev.dv_xname); 1179 break; 1180 } 1181 1182 acpi_sleepstate = ACPI_STATE_S0; 1183 return ret; 1184 } 1185 1186 #if defined(ACPI_ACTIVATE_DEV) 1187 /* XXX This very incomplete */ 1188 ACPI_STATUS 1189 acpi_allocate_resources(ACPI_HANDLE handle) 1190 { 1191 ACPI_BUFFER bufp, bufc, bufn; 1192 ACPI_RESOURCE *resp, *resc, *resn; 1193 ACPI_RESOURCE_IRQ *irq; 1194 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1195 ACPI_STATUS rv; 1196 uint delta; 1197 1198 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1199 if (ACPI_FAILURE(rv)) 1200 goto out; 1201 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1202 if (ACPI_FAILURE(rv)) { 1203 goto out1; 1204 } 1205 1206 bufn.Length = 1000; 1207 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1208 resp = bufp.Pointer; 1209 resc = bufc.Pointer; 1210 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1211 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1212 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1213 resp = ACPI_NEXT_RESOURCE(resp); 1214 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1215 break; 1216 /* Found identical Id */ 1217 resn->Type = resc->Type; 1218 switch (resc->Type) { 1219 case ACPI_RESOURCE_TYPE_IRQ: 1220 memcpy(&resn->Data, &resp->Data, 1221 sizeof(ACPI_RESOURCE_IRQ)); 1222 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1223 irq->Interrupts[0] = 1224 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1225 Interrupts[irq->InterruptCount-1]; 1226 irq->InterruptCount = 1; 1227 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1228 break; 1229 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1230 memcpy(&resn->Data, &resp->Data, 1231 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1232 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1233 #if 0 1234 /* 1235 * XXX not duplicating the interrupt logic above 1236 * because its not clear what it accomplishes. 1237 */ 1238 xirq->Interrupts[0] = 1239 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1240 Interrupts[irq->NumberOfInterrupts-1]; 1241 xirq->NumberOfInterrupts = 1; 1242 #endif 1243 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1244 break; 1245 case ACPI_RESOURCE_TYPE_IO: 1246 memcpy(&resn->Data, &resp->Data, 1247 sizeof(ACPI_RESOURCE_IO)); 1248 resn->Length = resp->Length; 1249 break; 1250 default: 1251 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1252 rv = AE_BAD_DATA; 1253 goto out2; 1254 } 1255 resc = ACPI_NEXT_RESOURCE(resc); 1256 resn = ACPI_NEXT_RESOURCE(resn); 1257 resp = ACPI_NEXT_RESOURCE(resp); 1258 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1259 if (delta >= 1260 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1261 bufn.Length *= 2; 1262 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1263 M_ACPI, M_WAITOK); 1264 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1265 } 1266 } 1267 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1268 printf("acpi_allocate_resources: resc not exhausted\n"); 1269 rv = AE_BAD_DATA; 1270 goto out3; 1271 } 1272 1273 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1274 rv = AcpiSetCurrentResources(handle, &bufn); 1275 if (ACPI_FAILURE(rv)) { 1276 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1277 AcpiFormatException(rv)); 1278 } 1279 1280 out3: 1281 free(bufn.Pointer, M_ACPI); 1282 out2: 1283 AcpiOsFree(bufc.Pointer); 1284 out1: 1285 AcpiOsFree(bufp.Pointer); 1286 out: 1287 return rv; 1288 } 1289 #endif /* ACPI_ACTIVATE_DEV */ 1290 1291 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1292 { 1293 const struct sysctlnode *node; 1294 const struct sysctlnode *ssnode; 1295 1296 if (sysctl_createv(clog, 0, NULL, NULL, 1297 CTLFLAG_PERMANENT, 1298 CTLTYPE_NODE, "hw", NULL, 1299 NULL, 0, NULL, 0, 1300 CTL_HW, CTL_EOL) != 0) 1301 return; 1302 1303 if (sysctl_createv(clog, 0, NULL, &node, 1304 CTLFLAG_PERMANENT, 1305 CTLTYPE_NODE, "acpi", NULL, 1306 NULL, 0, NULL, 0, 1307 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1308 return; 1309 1310 acpi_node = node->sysctl_num; 1311 1312 /* ACPI sleepstate sysctl */ 1313 if (sysctl_createv(NULL, 0, NULL, &node, 1314 CTLFLAG_PERMANENT, 1315 CTLTYPE_NODE, "machdep", NULL, 1316 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1317 return; 1318 if (sysctl_createv(NULL, 0, &node, &ssnode, 1319 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1320 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1321 CTL_EOL) != 0) 1322 return; 1323 } 1324 1325 static int 1326 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1327 { 1328 int error, t; 1329 struct sysctlnode node; 1330 1331 node = *rnode; 1332 t = acpi_sleepstate; 1333 node.sysctl_data = &t; 1334 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1335 if (error || newp == NULL) 1336 return error; 1337 1338 if (acpi_softc == NULL) 1339 return ENOSYS; 1340 1341 acpi_enter_sleep_state(acpi_softc, t); 1342 1343 return 0; 1344 } 1345
Indexes created Wed Oct 01 19:09:53 GMT 2025