acpi.c revision 1.146
1/* $NetBSD: acpi.c,v 1.146 2010/01/18 18:06:31 jruoho 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32/* 33 * Copyright 2001, 2003 Wasabi Systems, Inc. 34 * All rights reserved. 35 * 36 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed for the NetBSD Project by 49 * Wasabi Systems, Inc. 50 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 51 * or promote products derived from this software without specific prior 52 * written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 56 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 57 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 58 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 59 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 60 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 61 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 62 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 63 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 64 * POSSIBILITY OF SUCH DAMAGE. 65 */ 66 67/* 68 * Autoconfiguration support for the Intel ACPI Component Architecture 69 * ACPI reference implementation. 70 */ 71 72#include <sys/cdefs.h> 73__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.146 2010/01/18 18:06:31 jruoho Exp $"); 74 75#include "opt_acpi.h" 76#include "opt_pcifixup.h" 77 78#include <sys/param.h> 79#include <sys/systm.h> 80#include <sys/device.h> 81#include <sys/malloc.h> 82#include <sys/mutex.h> 83#include <sys/kernel.h> 84#include <sys/proc.h> 85#include <sys/sysctl.h> 86 87#include <dev/acpi/acpica.h> 88#include <dev/acpi/acpireg.h> 89#include <dev/acpi/acpivar.h> 90#include <dev/acpi/acpi_osd.h> 91#include <dev/acpi/acpi_timer.h> 92#include <dev/acpi/acpi_wakedev.h> 93#include <dev/acpi/acpi_pci.h> 94#ifdef ACPIVERBOSE 95#include <dev/acpi/acpidevs_data.h> 96#endif 97 98#define _COMPONENT ACPI_TOOLS 99ACPI_MODULE_NAME ("acpi") 100 101#if defined(ACPI_PCI_FIXUP) 102#error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 103#endif 104 105#ifdef PCI_INTR_FIXUP_DISABLED 106#include <dev/pci/pcidevs.h> 107#endif 108 109MALLOC_DECLARE(M_ACPI); 110 111#include <machine/acpi_machdep.h> 112 113#ifdef ACPI_DEBUGGER 114#define ACPI_DBGR_INIT 0x01 115#define ACPI_DBGR_TABLES 0x02 116#define ACPI_DBGR_ENABLE 0x04 117#define ACPI_DBGR_PROBE 0x08 118#define ACPI_DBGR_RUNNING 0x10 119 120static int acpi_dbgr = 0x00; 121#endif 122 123static ACPI_TABLE_DESC acpi_initial_tables[128]; 124 125static int acpi_match(device_t, cfdata_t, void *); 126static void acpi_attach(device_t, device_t, void *); 127static void acpi_childdet(device_t, device_t); 128static int acpi_detach(device_t, int); 129 130static int acpi_rescan(device_t, const char *, const int *); 131static void acpi_rescan1(struct acpi_softc *, const char *, const int *); 132static void acpi_rescan_nodes(struct acpi_softc *); 133 134static int acpi_print(void *aux, const char *); 135 136static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 137 138extern struct cfdriver acpi_cd; 139 140CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 141 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 142 143/* 144 * This is a flag we set when the ACPI subsystem is active. Machine 145 * dependent code may wish to skip other steps (such as attaching 146 * subsystems that ACPI supercedes) when ACPI is active. 147 */ 148int acpi_active; 149int acpi_force_load; 150int acpi_suspended = 0; 151 152/* 153 * Pointer to the ACPI subsystem's state. There can be only 154 * one ACPI instance. 155 */ 156struct acpi_softc *acpi_softc; 157 158/* 159 * Locking stuff. 160 */ 161extern kmutex_t acpi_interrupt_list_mtx; 162 163/* 164 * Ignored HIDs 165 */ 166static const char * const acpi_ignored_ids[] = { 167#if defined(i386) || defined(x86_64) 168 "PNP0000", /* AT interrupt controller is handled internally */ 169 "PNP0200", /* AT DMA controller is handled internally */ 170 "PNP0A??", /* PCI Busses are handled internally */ 171 "PNP0B00", /* AT RTC is handled internally */ 172 "PNP0C01", /* No "System Board" driver */ 173 "PNP0C02", /* No "PnP motherboard register resources" driver */ 174 "PNP0C0B", /* No need for "ACPI fan" driver */ 175 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 176 "INT0800", /* Intel HW RNG is handled internally */ 177#endif 178#if defined(x86_64) 179 "PNP0C04", /* FPU is handled internally */ 180#endif 181 NULL 182}; 183 184/* 185 * sysctl-related information 186 */ 187 188static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 189static int acpi_sleepstate = ACPI_STATE_S0; 190static char acpi_supported_states[3 * 6 + 1] = ""; 191 192/* 193 * Prototypes. 194 */ 195static void acpi_build_tree(struct acpi_softc *); 196static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 197 198static void acpi_enable_fixed_events(struct acpi_softc *); 199 200static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 201static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 202static int is_available_state(struct acpi_softc *, int); 203 204static bool acpi_suspend(device_t, pmf_qual_t); 205static bool acpi_resume(device_t, pmf_qual_t); 206 207/* 208 * acpi_probe: 209 * 210 * Probe for ACPI support. This is called by the 211 * machine-dependent ACPI front-end. All of the 212 * actual work is done by ACPICA. 213 * 214 * NOTE: This is not an autoconfiguration interface function. 215 */ 216int 217acpi_probe(void) 218{ 219 static int beenhere; 220 ACPI_TABLE_HEADER *rsdt; 221 ACPI_STATUS rv; 222 223 if (beenhere != 0) 224 panic("acpi_probe: ACPI has already been probed"); 225 beenhere = 1; 226 227 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 228 229 /* 230 * Start up ACPICA. 231 */ 232#ifdef ACPI_DEBUGGER 233 if (acpi_dbgr & ACPI_DBGR_INIT) 234 acpi_osd_debugger(); 235#endif 236 237 AcpiGbl_AllMethodsSerialized = FALSE; 238 AcpiGbl_EnableInterpreterSlack = TRUE; 239 240 rv = AcpiInitializeSubsystem(); 241 if (ACPI_FAILURE(rv)) { 242 printf("ACPI: unable to initialize ACPICA: %s\n", 243 AcpiFormatException(rv)); 244 return 0; 245 } 246 247 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 248 if (ACPI_FAILURE(rv)) { 249#ifdef ACPI_DEBUG 250 printf("ACPI: unable to initialize ACPI tables: %s\n", 251 AcpiFormatException(rv)); 252#endif 253 AcpiTerminate(); 254 return 0; 255 } 256 257 rv = AcpiReallocateRootTable(); 258 if (ACPI_FAILURE(rv)) { 259 printf("ACPI: unable to reallocate root table: %s\n", 260 AcpiFormatException(rv)); 261 AcpiTerminate(); 262 return 0; 263 } 264 265#ifdef ACPI_DEBUGGER 266 if (acpi_dbgr & ACPI_DBGR_TABLES) 267 acpi_osd_debugger(); 268#endif 269 270 rv = AcpiLoadTables(); 271 if (ACPI_FAILURE(rv)) { 272 printf("ACPI: unable to load tables: %s\n", 273 AcpiFormatException(rv)); 274 AcpiTerminate(); 275 return 0; 276 } 277 278 rsdt = acpi_map_rsdt(); 279 if (rsdt == NULL) { 280 printf("ACPI: unable to map RSDT\n"); 281 AcpiTerminate(); 282 return 0; 283 } 284 285 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 286 printf("ACPI: BIOS implementation in listed as broken:\n"); 287 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 288 "AslId <%4.4s,%08x>\n", 289 rsdt->OemId, rsdt->OemTableId, 290 rsdt->OemRevision, 291 rsdt->AslCompilerId, 292 rsdt->AslCompilerRevision); 293 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 294 acpi_unmap_rsdt(rsdt); 295 AcpiTerminate(); 296 return 0; 297 } 298 299 acpi_unmap_rsdt(rsdt); 300 301#if notyet 302 /* Install the default address space handlers. */ 303 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 304 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 305 if (ACPI_FAILURE(rv)) { 306 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 307 AcpiFormatException(rv)); 308 AcpiTerminate(); 309 return 0; 310 } 311 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 312 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 313 if (ACPI_FAILURE(rv)) { 314 printf("ACPI: unable to initialize SystemIO handler: %s\n", 315 AcpiFormatException(rv)); 316 AcpiTerminate(); 317 return 0; 318 } 319 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 320 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 321 if (ACPI_FAILURE(rv)) { 322 printf("ACPI: unable to initialize PciConfig handler: %s\n", 323 AcpiFormatException(rv)); 324 AcpiTerminate(); 325 return 0; 326 } 327#endif 328 329 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 330 if (ACPI_FAILURE(rv)) { 331 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 332 AcpiTerminate(); 333 return 0; 334 } 335 336 /* 337 * Looks like we have ACPI! 338 */ 339 340 return 1; 341} 342 343static int 344acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 345{ 346 struct cfattach *ca; 347 348 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 349 return (ca == &acpi_ca); 350} 351 352int 353acpi_check(device_t parent, const char *ifattr) 354{ 355 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 356} 357 358ACPI_PHYSICAL_ADDRESS 359acpi_OsGetRootPointer(void) 360{ 361 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 362 363 /* 364 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 365 * 366 * IA-64: Use the EFI. 367 * 368 * We let MD code handle this since there are multiple 369 * ways to do it. 370 */ 371 372 PhysicalAddress = acpi_md_OsGetRootPointer(); 373 374 if (acpi_root_pointer == 0) 375 acpi_root_pointer = PhysicalAddress; 376 377 return PhysicalAddress; 378} 379 380/* 381 * acpi_match: 382 * 383 * Autoconfiguration `match' routine. 384 */ 385static int 386acpi_match(device_t parent, cfdata_t match, void *aux) 387{ 388 /* 389 * XXX Check other locators? Hard to know -- machine 390 * dependent code has already checked for the presence 391 * of ACPI by calling acpi_probe(), so I suppose we 392 * don't really have to do anything else. 393 */ 394 return 1; 395} 396 397/* Remove references to child devices. 398 * 399 * XXX Need to reclaim any resources? 400 */ 401static void 402acpi_childdet(device_t self, device_t child) 403{ 404 struct acpi_softc *sc = device_private(self); 405 struct acpi_scope *as; 406 struct acpi_devnode *ad; 407 408 if (sc->sc_apmbus == child) 409 sc->sc_apmbus = NULL; 410 411 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 412 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 413 if (ad->ad_device == child) 414 ad->ad_device = NULL; 415 } 416 } 417} 418 419/* 420 * acpi_attach: 421 * 422 * Autoconfiguration `attach' routine. Finish initializing 423 * ACPICA (some initialization was done in acpi_probe(), 424 * which was required to check for the presence of ACPI), 425 * and enable the ACPI subsystem. 426 */ 427static void 428acpi_attach(device_t parent, device_t self, void *aux) 429{ 430 struct acpi_softc *sc = device_private(self); 431 struct acpibus_attach_args *aa = aux; 432 ACPI_STATUS rv; 433 ACPI_TABLE_HEADER *rsdt; 434 435 aprint_naive("\n"); 436 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 437 438 if (acpi_softc != NULL) 439 panic("acpi_attach: ACPI has already been attached"); 440 441 sysmon_power_settype("acpi"); 442 443 rsdt = acpi_map_rsdt(); 444 if (rsdt) { 445 aprint_verbose_dev( 446 self, 447 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 448 rsdt->OemId, rsdt->OemTableId, 449 rsdt->OemRevision, 450 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 451 } else 452 aprint_error_dev(self, "X/RSDT: Not found\n"); 453 acpi_unmap_rsdt(rsdt); 454 455 sc->sc_dev = self; 456 sc->sc_quirks = acpi_find_quirks(); 457 458 sc->sc_iot = aa->aa_iot; 459 sc->sc_memt = aa->aa_memt; 460 sc->sc_pc = aa->aa_pc; 461 sc->sc_pciflags = aa->aa_pciflags; 462 sc->sc_ic = aa->aa_ic; 463 464 acpi_softc = sc; 465 466 /* 467 * Register null power management handler 468 */ 469 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 470 aprint_error_dev(self, "couldn't establish power handler\n"); 471 472 /* 473 * Bring ACPI on-line. 474 */ 475#ifdef ACPI_DEBUGGER 476 if (acpi_dbgr & ACPI_DBGR_ENABLE) 477 acpi_osd_debugger(); 478#endif 479 480#define ACPI_ENABLE_PHASE1 \ 481 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 482#define ACPI_ENABLE_PHASE2 \ 483 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 484 ACPI_NO_ADDRESS_SPACE_INIT) 485 486 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 487 if (ACPI_FAILURE(rv)) { 488 aprint_error_dev(self, "unable to enable ACPI: %s\n", 489 AcpiFormatException(rv)); 490 return; 491 } 492 493 acpi_md_callback(); 494 495 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 496 if (ACPI_FAILURE(rv)) { 497 aprint_error_dev(self, "unable to enable ACPI: %s\n", 498 AcpiFormatException(rv)); 499 return; 500 } 501 502 /* early EC handler initialization if ECDT table is available */ 503 config_found_ia(self, "acpiecdtbus", NULL, NULL); 504 505 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 506 if (ACPI_FAILURE(rv)) { 507 aprint_error_dev(self, 508 "unable to initialize ACPI objects: %s\n", 509 AcpiFormatException(rv)); 510 return; 511 } 512 acpi_active = 1; 513 514 /* Our current state is "awake". */ 515 sc->sc_sleepstate = ACPI_STATE_S0; 516 517 /* Show SCI interrupt. */ 518 aprint_verbose_dev(self, "SCI interrupting at int %d\n", 519 AcpiGbl_FADT.SciInterrupt); 520 521 /* 522 * Check for fixed-hardware features. 523 */ 524 acpi_enable_fixed_events(sc); 525 acpitimer_init(); 526 527 /* 528 * Scan the namespace and build our device tree. 529 */ 530#ifdef ACPI_DEBUGGER 531 if (acpi_dbgr & ACPI_DBGR_PROBE) 532 acpi_osd_debugger(); 533#endif 534 acpi_build_tree(sc); 535 536 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 537 "%s%s%s%s%s%s", 538 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 539 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 540 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 541 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 542 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 543 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 544 545#ifdef ACPI_DEBUGGER 546 if (acpi_dbgr & ACPI_DBGR_RUNNING) 547 acpi_osd_debugger(); 548#endif 549} 550 551static int 552acpi_detach(device_t self, int flags) 553{ 554 int rc; 555 556#ifdef ACPI_DEBUGGER 557 if (acpi_dbgr & ACPI_DBGR_RUNNING) 558 acpi_osd_debugger(); 559#endif 560 561 if ((rc = config_detach_children(self, flags)) != 0) 562 return rc; 563 564#ifdef ACPI_DEBUGGER 565 if (acpi_dbgr & ACPI_DBGR_PROBE) 566 acpi_osd_debugger(); 567#endif 568 569 if ((rc = acpitimer_detach()) != 0) 570 return rc; 571 572#if 0 573 /* 574 * Bring ACPI on-line. 575 */ 576#ifdef ACPI_DEBUGGER 577 if (acpi_dbgr & ACPI_DBGR_ENABLE) 578 acpi_osd_debugger(); 579#endif 580 581#define ACPI_ENABLE_PHASE1 \ 582 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 583#define ACPI_ENABLE_PHASE2 \ 584 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 585 ACPI_NO_ADDRESS_SPACE_INIT) 586 587 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 588 if (ACPI_FAILURE(rv)) { 589 aprint_error_dev(self, "unable to enable ACPI: %s\n", 590 AcpiFormatException(rv)); 591 return; 592 } 593 594 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 595 if (ACPI_FAILURE(rv)) { 596 aprint_error_dev(self, "unable to enable ACPI: %s\n", 597 AcpiFormatException(rv)); 598 return; 599 } 600 601 /* early EC handler initialization if ECDT table is available */ 602 config_found_ia(self, "acpiecdtbus", NULL, NULL); 603 604 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 605 if (ACPI_FAILURE(rv)) { 606 aprint_error_dev(self, 607 "unable to initialize ACPI objects: %s\n", 608 AcpiFormatException(rv)); 609 return; 610 } 611 acpi_active = 1; 612 613 acpi_enable_fixed_events(sc); 614#endif 615 616 pmf_device_deregister(self); 617 618#if 0 619 sysmon_power_settype("acpi"); 620#endif 621 acpi_softc = NULL; 622 623 return 0; 624} 625 626static bool 627acpi_suspend(device_t dv, pmf_qual_t qual) 628{ 629 acpi_suspended = 1; 630 return true; 631} 632 633static bool 634acpi_resume(device_t dv, pmf_qual_t qual) 635{ 636 acpi_suspended = 0; 637 return true; 638} 639 640#if 0 641/* 642 * acpi_disable: 643 * 644 * Disable ACPI. 645 */ 646static ACPI_STATUS 647acpi_disable(struct acpi_softc *sc) 648{ 649 ACPI_STATUS rv = AE_OK; 650 651 if (acpi_active) { 652 rv = AcpiDisable(); 653 if (ACPI_SUCCESS(rv)) 654 acpi_active = 0; 655 } 656 return rv; 657} 658#endif 659 660struct acpi_make_devnode_state { 661 struct acpi_softc *softc; 662 struct acpi_scope *scope; 663}; 664 665/* 666 * acpi_build_tree: 667 * 668 * Scan relevant portions of the ACPI namespace and attach 669 * child devices. 670 */ 671static void 672acpi_build_tree(struct acpi_softc *sc) 673{ 674 static const char *scopes[] = { 675 "\\_PR_", /* ACPI 1.0 processor namespace */ 676 "\\_SB_", /* system bus namespace */ 677 "\\_SI_", /* system indicator namespace */ 678 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 679 NULL, 680 }; 681 struct acpi_make_devnode_state state; 682 struct acpi_scope *as; 683 ACPI_HANDLE parent; 684 ACPI_STATUS rv; 685 int i; 686 687 TAILQ_INIT(&sc->sc_scopes); 688 689 state.softc = sc; 690 691 /* 692 * Scan the namespace and build our tree. 693 */ 694 for (i = 0; scopes[i] != NULL; i++) { 695 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 696 as->as_name = scopes[i]; 697 TAILQ_INIT(&as->as_devnodes); 698 699 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 700 701 state.scope = as; 702 703 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 704 &parent); 705 if (ACPI_SUCCESS(rv)) { 706 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 707 acpi_make_devnode, &state, NULL); 708 } 709 } 710 711 acpi_rescan1(sc, NULL, NULL); 712 713 acpi_wakedev_scan(sc); 714 715 acpi_pcidev_scan(sc); 716} 717 718static int 719acpi_rescan(device_t self, const char *ifattr, const int *locators) 720{ 721 struct acpi_softc *sc = device_private(self); 722 723 acpi_rescan1(sc, ifattr, locators); 724 return 0; 725} 726 727static void 728acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 729{ 730 if (ifattr_match(ifattr, "acpinodebus")) 731 acpi_rescan_nodes(sc); 732 733 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 734 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 735 NULL); 736 } 737} 738 739static void 740acpi_rescan_nodes(struct acpi_softc *sc) 741{ 742 struct acpi_scope *as; 743 744 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 745 struct acpi_devnode *ad; 746 747 /* Now, for this namespace, try to attach the devices. */ 748 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 749 struct acpi_attach_args aa; 750 751 if (ad->ad_device != NULL) 752 continue; 753 754 aa.aa_node = ad; 755 aa.aa_iot = sc->sc_iot; 756 aa.aa_memt = sc->sc_memt; 757 aa.aa_pc = sc->sc_pc; 758 aa.aa_pciflags = sc->sc_pciflags; 759 aa.aa_ic = sc->sc_ic; 760 761 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 762 /* 763 * XXX We only attach devices which are: 764 * 765 * - present 766 * - enabled 767 * - functioning properly 768 * 769 * However, if enabled, it's decoding resources, 770 * so we should claim them, if possible. 771 * Requires changes to bus_space(9). 772 */ 773 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 774 ACPI_VALID_STA && 775 (ad->ad_devinfo->CurrentStatus & 776 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 777 ACPI_STA_DEV_OK)) != 778 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 779 ACPI_STA_DEV_OK)) 780 continue; 781 } 782 783 /* 784 * XXX Same problem as above... 785 * 786 * Do this check only for devices, as e.g. 787 * a Thermal Zone doesn't have a HID. 788 */ 789 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 790 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 791 continue; 792 793 /* 794 * Handled internally 795 */ 796 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 797 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 798 continue; 799 800 /* 801 * Skip ignored HIDs 802 */ 803 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 804 continue; 805 806 ad->ad_device = config_found_ia(sc->sc_dev, 807 "acpinodebus", &aa, acpi_print); 808 } 809 } 810} 811 812#ifdef ACPI_ACTIVATE_DEV 813static void 814acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 815{ 816 ACPI_STATUS rv; 817 ACPI_DEVICE_INFO *newdi; 818 819#ifdef ACPI_DEBUG 820 aprint_normal("acpi_activate_device: %s, old status=%x\n", 821 (*di)->HardwareId.Value, (*di)->CurrentStatus); 822#endif 823 824 rv = acpi_allocate_resources(handle); 825 if (ACPI_FAILURE(rv)) { 826 aprint_error("acpi: activate failed for %s\n", 827 (*di)->HardwareId.String); 828 } else { 829 aprint_verbose("acpi: activated %s\n", 830 (*di)->HardwareId.String); 831 } 832 833 (void)AcpiGetObjectInfo(handle, &newdi); 834 ACPI_FREE(*di); 835 *di = newdi; 836 837#ifdef ACPI_DEBUG 838 aprint_normal("acpi_activate_device: %s, new status=%x\n", 839 (*di)->HardwareId.Value, (*di)->CurrentStatus); 840#endif 841} 842#endif /* ACPI_ACTIVATE_DEV */ 843 844/* 845 * acpi_make_devnode: 846 * 847 * Make an ACPI devnode. 848 */ 849static ACPI_STATUS 850acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 851 void **status) 852{ 853 struct acpi_make_devnode_state *state = context; 854#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 855 struct acpi_softc *sc = state->softc; 856#endif 857 struct acpi_scope *as = state->scope; 858 struct acpi_devnode *ad; 859 ACPI_OBJECT_TYPE type; 860 ACPI_DEVICE_INFO *devinfo; 861 ACPI_STATUS rv; 862 ACPI_NAME_UNION *anu; 863 int i, clear = 0; 864 865 rv = AcpiGetType(handle, &type); 866 if (ACPI_SUCCESS(rv)) { 867 rv = AcpiGetObjectInfo(handle, &devinfo); 868 if (ACPI_FAILURE(rv)) { 869#ifdef ACPI_DEBUG 870 aprint_normal_dev(sc->sc_dev, 871 "AcpiGetObjectInfo failed: %s\n", 872 AcpiFormatException(rv)); 873#endif 874 goto out; /* XXX why return OK */ 875 } 876 877 switch (type) { 878 case ACPI_TYPE_DEVICE: 879#ifdef ACPI_ACTIVATE_DEV 880 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 881 (ACPI_VALID_STA|ACPI_VALID_HID) && 882 (devinfo->CurrentStatus & 883 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 884 ACPI_STA_DEV_PRESENT) 885 acpi_activate_device(handle, &devinfo); 886 887 /* FALLTHROUGH */ 888#endif 889 890 case ACPI_TYPE_PROCESSOR: 891 case ACPI_TYPE_THERMAL: 892 case ACPI_TYPE_POWER: 893 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 894 if (ad == NULL) 895 return AE_NO_MEMORY; 896 897 ad->ad_devinfo = devinfo; 898 ad->ad_handle = handle; 899 ad->ad_level = level; 900 ad->ad_scope = as; 901 ad->ad_type = type; 902 903 anu = (ACPI_NAME_UNION *)&devinfo->Name; 904 ad->ad_name[4] = '\0'; 905 for (i = 3, clear = 0; i >= 0; i--) { 906 if (!clear && anu->Ascii[i] == '_') 907 ad->ad_name[i] = '\0'; 908 else { 909 ad->ad_name[i] = anu->Ascii[i]; 910 clear = 1; 911 } 912 } 913 if (ad->ad_name[0] == '\0') 914 ad->ad_name[0] = '_'; 915 916 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 917 918 if (type == ACPI_TYPE_DEVICE && 919 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 920 goto out; 921 922#ifdef ACPI_EXTRA_DEBUG 923 aprint_normal_dev(sc->sc_dev, 924 "HID %s found in scope %s level %d\n", 925 ad->ad_devinfo->HardwareId.String, 926 as->as_name, ad->ad_level); 927 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 928 aprint_normal(" UID %s\n", 929 ad->ad_devinfo->UniqueId.String); 930 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 931 aprint_normal(" ADR 0x%016" PRIx64 "\n", 932 ad->ad_devinfo->Address); 933 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 934 aprint_normal(" STA 0x%08x\n", 935 ad->ad_devinfo->CurrentStatus); 936#endif 937 } 938 } 939 out: 940 return AE_OK; 941} 942 943/* 944 * acpi_print: 945 * 946 * Autoconfiguration print routine for ACPI node bus. 947 */ 948static int 949acpi_print(void *aux, const char *pnp) 950{ 951 struct acpi_attach_args *aa = aux; 952 ACPI_STATUS rv; 953 954 if (pnp) { 955 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 956 char *pnpstr = 957 aa->aa_node->ad_devinfo->HardwareId.String; 958 ACPI_BUFFER buf; 959 960 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 961 pnpstr); 962 963 rv = acpi_eval_struct(aa->aa_node->ad_handle, 964 "_STR", &buf); 965 if (ACPI_SUCCESS(rv)) { 966 ACPI_OBJECT *obj = buf.Pointer; 967 switch (obj->Type) { 968 case ACPI_TYPE_STRING: 969 aprint_normal("[%s] ", obj->String.Pointer); 970 break; 971 case ACPI_TYPE_BUFFER: 972 aprint_normal("buffer %p ", obj->Buffer.Pointer); 973 break; 974 default: 975 aprint_normal("type %d ",obj->Type); 976 break; 977 } 978 ACPI_FREE(buf.Pointer); 979 } 980#ifdef ACPIVERBOSE 981 else { 982 int i; 983 984 for (i = 0; i < __arraycount(acpi_knowndevs); 985 i++) { 986 if (strcmp(acpi_knowndevs[i].pnp, 987 pnpstr) == 0) { 988 aprint_normal("[%s] ", 989 acpi_knowndevs[i].str); 990 } 991 } 992 } 993 994#endif 995 aprint_normal("at %s", pnp); 996 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 997 aprint_normal("%s (ACPI Object Type '%s' " 998 "[0x%02x]) ", aa->aa_node->ad_name, 999 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1000 aa->aa_node->ad_devinfo->Type); 1001 aprint_normal("at %s", pnp); 1002 } else 1003 return 0; 1004 } else { 1005 aprint_normal(" (%s", aa->aa_node->ad_name); 1006 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1007 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1008 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1009 const char *uid; 1010 1011 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1012 if (uid[0] == '\0') 1013 uid = "<null>"; 1014 aprint_normal("-%s", uid); 1015 } 1016 } 1017 aprint_normal(")"); 1018 } 1019 1020 return UNCONF; 1021} 1022 1023/***************************************************************************** 1024 * ACPI fixed-hardware feature handlers 1025 *****************************************************************************/ 1026 1027static UINT32 acpi_fixed_button_handler(void *); 1028static void acpi_fixed_button_pressed(void *); 1029 1030/* 1031 * acpi_enable_fixed_events: 1032 * 1033 * Enable any fixed-hardware feature handlers. 1034 */ 1035static void 1036acpi_enable_fixed_events(struct acpi_softc *sc) 1037{ 1038 static int beenhere; 1039 ACPI_STATUS rv; 1040 1041 KASSERT(beenhere == 0); 1042 beenhere = 1; 1043 1044 /* 1045 * Check for fixed-hardware buttons. 1046 */ 1047 1048 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1049 aprint_verbose_dev(sc->sc_dev, 1050 "fixed-feature power button present\n"); 1051 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1052 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1053 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1054 aprint_error_dev(sc->sc_dev, 1055 "unable to register fixed power " 1056 "button with sysmon\n"); 1057 } else { 1058 rv = AcpiInstallFixedEventHandler( 1059 ACPI_EVENT_POWER_BUTTON, 1060 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1061 if (ACPI_FAILURE(rv)) { 1062 aprint_error_dev(sc->sc_dev, 1063 "unable to install handler " 1064 "for fixed power button: %s\n", 1065 AcpiFormatException(rv)); 1066 } 1067 } 1068 } 1069 1070 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1071 aprint_verbose_dev(sc->sc_dev, 1072 "fixed-feature sleep button present\n"); 1073 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1074 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1075 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1076 aprint_error_dev(sc->sc_dev, 1077 "unable to register fixed sleep " 1078 "button with sysmon\n"); 1079 } else { 1080 rv = AcpiInstallFixedEventHandler( 1081 ACPI_EVENT_SLEEP_BUTTON, 1082 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1083 if (ACPI_FAILURE(rv)) { 1084 aprint_error_dev(sc->sc_dev, 1085 "unable to install handler " 1086 "for fixed sleep button: %s\n", 1087 AcpiFormatException(rv)); 1088 } 1089 } 1090 } 1091} 1092 1093/* 1094 * acpi_fixed_button_handler: 1095 * 1096 * Event handler for the fixed buttons. 1097 */ 1098static UINT32 1099acpi_fixed_button_handler(void *context) 1100{ 1101 struct sysmon_pswitch *smpsw = context; 1102 ACPI_STATUS rv; 1103 1104#ifdef ACPI_BUT_DEBUG 1105 printf("%s: fixed button handler\n", smpsw->smpsw_name); 1106#endif 1107 1108 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 1109 acpi_fixed_button_pressed, smpsw); 1110 if (ACPI_FAILURE(rv)) 1111 printf("%s: WARNING: unable to queue fixed button pressed " 1112 "callback: %s\n", smpsw->smpsw_name, 1113 AcpiFormatException(rv)); 1114 1115 return ACPI_INTERRUPT_HANDLED; 1116} 1117 1118/* 1119 * acpi_fixed_button_pressed: 1120 * 1121 * Deal with a fixed button being pressed. 1122 */ 1123static void 1124acpi_fixed_button_pressed(void *context) 1125{ 1126 struct sysmon_pswitch *smpsw = context; 1127 1128#ifdef ACPI_BUT_DEBUG 1129 printf("%s: fixed button pressed, calling sysmon\n", 1130 smpsw->smpsw_name); 1131#endif 1132 1133 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1134} 1135 1136/***************************************************************************** 1137 * ACPI utility routines. 1138 *****************************************************************************/ 1139 1140/* 1141 * acpi_eval_integer: 1142 * 1143 * Evaluate an integer object. 1144 */ 1145ACPI_STATUS 1146acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1147{ 1148 ACPI_STATUS rv; 1149 ACPI_BUFFER buf; 1150 ACPI_OBJECT param; 1151 1152 if (handle == NULL) 1153 handle = ACPI_ROOT_OBJECT; 1154 1155 buf.Pointer = ¶m; 1156 buf.Length = sizeof(param); 1157 1158 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1159 ACPI_TYPE_INTEGER); 1160 if (ACPI_SUCCESS(rv)) 1161 *valp = param.Integer.Value; 1162 1163 return rv; 1164} 1165 1166ACPI_STATUS 1167acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1168{ 1169 ACPI_OBJECT param_arg; 1170 ACPI_OBJECT_LIST param_args; 1171 1172 if (handle == NULL) 1173 handle = ACPI_ROOT_OBJECT; 1174 1175 param_arg.Type = ACPI_TYPE_INTEGER; 1176 param_arg.Integer.Value = arg; 1177 1178 param_args.Count = 1; 1179 param_args.Pointer = ¶m_arg; 1180 1181 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1182} 1183 1184/* 1185 * acpi_eval_string: 1186 * 1187 * Evaluate a (Unicode) string object. 1188 */ 1189ACPI_STATUS 1190acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1191{ 1192 ACPI_OBJECT *obj; 1193 ACPI_BUFFER buf; 1194 ACPI_STATUS rv; 1195 1196 rv = acpi_eval_struct(handle, path, &buf); 1197 1198 if (ACPI_FAILURE(rv)) 1199 return rv; 1200 1201 obj = buf.Pointer; 1202 1203 if (obj->Type != ACPI_TYPE_STRING) { 1204 rv = AE_TYPE; 1205 goto out; 1206 } 1207 1208 if (obj->String.Length == 0) { 1209 rv = AE_BAD_DATA; 1210 goto out; 1211 } 1212 1213 *stringp = ACPI_ALLOCATE(obj->String.Length + 1); 1214 1215 if (*stringp == NULL) { 1216 rv = AE_NO_MEMORY; 1217 goto out; 1218 } 1219 1220 (void)memcpy(*stringp, obj->String.Pointer, obj->String.Length); 1221 1222 (*stringp)[obj->String.Length] = '\0'; 1223 1224out: 1225 ACPI_FREE(buf.Pointer); 1226 1227 return rv; 1228} 1229 1230 1231/* 1232 * acpi_eval_struct: 1233 * 1234 * Evaluate a more complex structure. 1235 * Caller must free buf.Pointer by ACPI_FREE(). 1236 */ 1237ACPI_STATUS 1238acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1239{ 1240 ACPI_STATUS rv; 1241 1242 if (handle == NULL) 1243 handle = ACPI_ROOT_OBJECT; 1244 1245 bufp->Pointer = NULL; 1246 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1247 1248 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1249 1250 return rv; 1251} 1252 1253/* 1254 * acpi_eval_reference_handle: 1255 * 1256 * Evaluate a reference handle from an element in a package. 1257 */ 1258ACPI_STATUS 1259acpi_eval_reference_handle(ACPI_OBJECT *elm, ACPI_HANDLE *handle) 1260{ 1261 1262 if (elm == NULL || handle == NULL) 1263 return AE_BAD_PARAMETER; 1264 1265 switch (elm->Type) { 1266 1267 case ACPI_TYPE_ANY: 1268 case ACPI_TYPE_LOCAL_REFERENCE: 1269 1270 if (elm->Reference.Handle == NULL) 1271 return AE_NULL_ENTRY; 1272 1273 *handle = elm->Reference.Handle; 1274 1275 return AE_OK; 1276 1277 case ACPI_TYPE_STRING: 1278 return AcpiGetHandle(NULL, elm->String.Pointer, handle); 1279 1280 default: 1281 return AE_TYPE; 1282 } 1283} 1284 1285/* 1286 * acpi_foreach_package_object: 1287 * 1288 * Iterate over all objects in a in a packages and pass then all 1289 * to a function. If the called function returns non AE_OK, the 1290 * iteration is stopped and that value is returned. 1291 */ 1292 1293ACPI_STATUS 1294acpi_foreach_package_object(ACPI_OBJECT *pkg, 1295 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1296 void *arg) 1297{ 1298 ACPI_STATUS rv = AE_OK; 1299 int i; 1300 1301 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1302 return AE_BAD_PARAMETER; 1303 1304 for (i = 0; i < pkg->Package.Count; i++) { 1305 rv = (*func)(&pkg->Package.Elements[i], arg); 1306 if (ACPI_FAILURE(rv)) 1307 break; 1308 } 1309 1310 return rv; 1311} 1312 1313const char * 1314acpi_name(ACPI_HANDLE handle) 1315{ 1316 static char buffer[80]; 1317 ACPI_BUFFER buf; 1318 ACPI_STATUS rv; 1319 1320 buf.Length = sizeof(buffer); 1321 buf.Pointer = buffer; 1322 1323 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1324 if (ACPI_FAILURE(rv)) 1325 return "(unknown acpi path)"; 1326 return buffer; 1327} 1328 1329/* 1330 * acpi_get: 1331 * 1332 * Fetch data info the specified (empty) ACPI buffer. 1333 * Caller must free buf.Pointer by ACPI_FREE(). 1334 */ 1335ACPI_STATUS 1336acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1337 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1338{ 1339 buf->Pointer = NULL; 1340 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1341 1342 return (*getit)(handle, buf); 1343} 1344 1345 1346/* 1347 * acpi_match_hid 1348 * 1349 * Match given ids against _HID and _CIDs 1350 */ 1351int 1352acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1353{ 1354 int i; 1355 1356 while (*ids) { 1357 if (ad->Valid & ACPI_VALID_HID) { 1358 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1359 return 1; 1360 } 1361 1362 if (ad->Valid & ACPI_VALID_CID) { 1363 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1364 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1365 return 1; 1366 } 1367 } 1368 ids++; 1369 } 1370 1371 return 0; 1372} 1373 1374/* 1375 * acpi_wake_gpe_helper 1376 * 1377 * Set/unset GPE as both Runtime and Wake 1378 */ 1379static void 1380acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1381{ 1382 ACPI_OBJECT *elm, *obj; 1383 ACPI_INTEGER val; 1384 ACPI_BUFFER buf; 1385 ACPI_STATUS rv; 1386 1387 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1388 1389 if (ACPI_FAILURE(rv)) 1390 return; 1391 1392 obj = buf.Pointer; 1393 1394 if (obj->Type != ACPI_TYPE_PACKAGE || obj->Package.Count < 2) 1395 goto out; 1396 1397 /* 1398 * As noted in ACPI 3.0 (section 7.2.10), the _PRW object is 1399 * a package in which the first element is either an integer 1400 * or again a package. In the latter case the package inside 1401 * the package element has two elements, a reference handle 1402 * and the GPE number. 1403 */ 1404 elm = &obj->Package.Elements[0]; 1405 1406 switch (elm->Type) { 1407 1408 case ACPI_TYPE_INTEGER: 1409 val = elm->Integer.Value; 1410 break; 1411 1412 case ACPI_TYPE_PACKAGE: 1413 1414 if (elm->Package.Count < 2) 1415 goto out; 1416 1417 if (elm->Package.Elements[0].Type != ACPI_TYPE_LOCAL_REFERENCE) 1418 goto out; 1419 1420 if (elm->Package.Elements[1].Type != ACPI_TYPE_INTEGER) 1421 goto out; 1422 1423 val = elm->Package.Elements[1].Integer.Value; 1424 break; 1425 1426 default: 1427 goto out; 1428 } 1429 1430 if (enable) { 1431 (void)AcpiSetGpeType(NULL, val, ACPI_GPE_TYPE_WAKE_RUN); 1432 (void)AcpiEnableGpe(NULL, val, ACPI_NOT_ISR); 1433 } else 1434 (void)AcpiDisableGpe(NULL, val, ACPI_NOT_ISR); 1435 1436out: 1437 ACPI_FREE(buf.Pointer); 1438} 1439 1440/* 1441 * acpi_clear_wake_gpe 1442 * 1443 * Clear GPE as both Runtime and Wake 1444 */ 1445void 1446acpi_clear_wake_gpe(ACPI_HANDLE handle) 1447{ 1448 acpi_wake_gpe_helper(handle, false); 1449} 1450 1451/* 1452 * acpi_set_wake_gpe 1453 * 1454 * Set GPE as both Runtime and Wake 1455 */ 1456void 1457acpi_set_wake_gpe(ACPI_HANDLE handle) 1458{ 1459 acpi_wake_gpe_helper(handle, true); 1460} 1461 1462 1463/***************************************************************************** 1464 * ACPI sleep support. 1465 *****************************************************************************/ 1466 1467static int 1468is_available_state(struct acpi_softc *sc, int state) 1469{ 1470 UINT8 type_a, type_b; 1471 1472 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1473 &type_a, &type_b)); 1474} 1475 1476/* 1477 * acpi_enter_sleep_state: 1478 * 1479 * enter to the specified sleep state. 1480 */ 1481 1482ACPI_STATUS 1483acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1484{ 1485 int err; 1486 ACPI_STATUS ret = AE_OK; 1487 1488 if (state == acpi_sleepstate) 1489 return AE_OK; 1490 1491 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1492 1493 switch (state) { 1494 case ACPI_STATE_S0: 1495 break; 1496 case ACPI_STATE_S1: 1497 case ACPI_STATE_S2: 1498 case ACPI_STATE_S3: 1499 case ACPI_STATE_S4: 1500 if (!is_available_state(sc, state)) { 1501 aprint_error_dev(sc->sc_dev, 1502 "ACPI S%d not available on this platform\n", state); 1503 break; 1504 } 1505 1506 acpi_wakedev_commit(sc); 1507 1508 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) { 1509 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1510 break; 1511 } 1512 1513 ret = AcpiEnterSleepStatePrep(state); 1514 if (ACPI_FAILURE(ret)) { 1515 aprint_error_dev(sc->sc_dev, 1516 "failed preparing to sleep (%s)\n", 1517 AcpiFormatException(ret)); 1518 break; 1519 } 1520 1521 acpi_sleepstate = state; 1522 if (state == ACPI_STATE_S1) { 1523 /* just enter the state */ 1524 acpi_md_OsDisableInterrupt(); 1525 ret = AcpiEnterSleepState((UINT8)state); 1526 if (ACPI_FAILURE(ret)) 1527 aprint_error_dev(sc->sc_dev, 1528 "failed to enter sleep state S1: %s\n", 1529 AcpiFormatException(ret)); 1530 AcpiLeaveSleepState((UINT8)state); 1531 } else { 1532 err = acpi_md_sleep(state); 1533 if (state == ACPI_STATE_S4) 1534 AcpiEnable(); 1535 pmf_system_bus_resume(PMF_Q_NONE); 1536 AcpiLeaveSleepState((UINT8)state); 1537 pmf_system_resume(PMF_Q_NONE); 1538 } 1539 1540 break; 1541 case ACPI_STATE_S5: 1542 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1543 if (ACPI_FAILURE(ret)) { 1544 aprint_error_dev(sc->sc_dev, 1545 "failed preparing to sleep (%s)\n", 1546 AcpiFormatException(ret)); 1547 break; 1548 } 1549 DELAY(1000000); 1550 acpi_sleepstate = state; 1551 acpi_md_OsDisableInterrupt(); 1552 AcpiEnterSleepState(ACPI_STATE_S5); 1553 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1554 break; 1555 } 1556 1557 acpi_sleepstate = ACPI_STATE_S0; 1558 return ret; 1559} 1560 1561#if defined(ACPI_ACTIVATE_DEV) 1562/* XXX This very incomplete */ 1563ACPI_STATUS 1564acpi_allocate_resources(ACPI_HANDLE handle) 1565{ 1566 ACPI_BUFFER bufp, bufc, bufn; 1567 ACPI_RESOURCE *resp, *resc, *resn; 1568 ACPI_RESOURCE_IRQ *irq; 1569 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1570 ACPI_STATUS rv; 1571 uint delta; 1572 1573 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1574 if (ACPI_FAILURE(rv)) 1575 goto out; 1576 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1577 if (ACPI_FAILURE(rv)) { 1578 goto out1; 1579 } 1580 1581 bufn.Length = 1000; 1582 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1583 resp = bufp.Pointer; 1584 resc = bufc.Pointer; 1585 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1586 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1587 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1588 resp = ACPI_NEXT_RESOURCE(resp); 1589 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1590 break; 1591 /* Found identical Id */ 1592 resn->Type = resc->Type; 1593 switch (resc->Type) { 1594 case ACPI_RESOURCE_TYPE_IRQ: 1595 memcpy(&resn->Data, &resp->Data, 1596 sizeof(ACPI_RESOURCE_IRQ)); 1597 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1598 irq->Interrupts[0] = 1599 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1600 Interrupts[irq->InterruptCount-1]; 1601 irq->InterruptCount = 1; 1602 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1603 break; 1604 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1605 memcpy(&resn->Data, &resp->Data, 1606 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1607 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1608#if 0 1609 /* 1610 * XXX not duplicating the interrupt logic above 1611 * because its not clear what it accomplishes. 1612 */ 1613 xirq->Interrupts[0] = 1614 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1615 Interrupts[irq->NumberOfInterrupts-1]; 1616 xirq->NumberOfInterrupts = 1; 1617#endif 1618 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1619 break; 1620 case ACPI_RESOURCE_TYPE_IO: 1621 memcpy(&resn->Data, &resp->Data, 1622 sizeof(ACPI_RESOURCE_IO)); 1623 resn->Length = resp->Length; 1624 break; 1625 default: 1626 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1627 rv = AE_BAD_DATA; 1628 goto out2; 1629 } 1630 resc = ACPI_NEXT_RESOURCE(resc); 1631 resn = ACPI_NEXT_RESOURCE(resn); 1632 resp = ACPI_NEXT_RESOURCE(resp); 1633 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1634 if (delta >= 1635 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1636 bufn.Length *= 2; 1637 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1638 M_ACPI, M_WAITOK); 1639 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1640 } 1641 } 1642 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1643 printf("acpi_allocate_resources: resc not exhausted\n"); 1644 rv = AE_BAD_DATA; 1645 goto out3; 1646 } 1647 1648 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1649 rv = AcpiSetCurrentResources(handle, &bufn); 1650 if (ACPI_FAILURE(rv)) { 1651 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1652 AcpiFormatException(rv)); 1653 } 1654 1655out3: 1656 free(bufn.Pointer, M_ACPI); 1657out2: 1658 ACPI_FREE(bufc.Pointer); 1659out1: 1660 ACPI_FREE(bufp.Pointer); 1661out: 1662 return rv; 1663} 1664#endif /* ACPI_ACTIVATE_DEV */ 1665 1666SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1667{ 1668 const struct sysctlnode *node; 1669 const struct sysctlnode *ssnode; 1670 1671 if (sysctl_createv(clog, 0, NULL, NULL, 1672 CTLFLAG_PERMANENT, 1673 CTLTYPE_NODE, "hw", NULL, 1674 NULL, 0, NULL, 0, 1675 CTL_HW, CTL_EOL) != 0) 1676 return; 1677 1678 if (sysctl_createv(clog, 0, NULL, &node, 1679 CTLFLAG_PERMANENT, 1680 CTLTYPE_NODE, "acpi", NULL, 1681 NULL, 0, NULL, 0, 1682 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1683 return; 1684 1685 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1686 CTLTYPE_QUAD, "root", 1687 SYSCTL_DESCR("ACPI root pointer"), 1688 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1689 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1690 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1691 CTLTYPE_STRING, "supported_states", 1692 SYSCTL_DESCR("Supported ACPI system states"), 1693 NULL, 0, acpi_supported_states, 0, 1694 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1695 1696 /* ACPI sleepstate sysctl */ 1697 if (sysctl_createv(NULL, 0, NULL, &node, 1698 CTLFLAG_PERMANENT, 1699 CTLTYPE_NODE, "machdep", NULL, 1700 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1701 return; 1702 if (sysctl_createv(NULL, 0, &node, &ssnode, 1703 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1704 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1705 CTL_EOL) != 0) 1706 return; 1707} 1708 1709static int 1710sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1711{ 1712 int error, t; 1713 struct sysctlnode node; 1714 1715 node = *rnode; 1716 t = acpi_sleepstate; 1717 node.sysctl_data = &t; 1718 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1719 if (error || newp == NULL) 1720 return error; 1721 1722 if (acpi_softc == NULL) 1723 return ENOSYS; 1724 1725 acpi_enter_sleep_state(acpi_softc, t); 1726 1727 return 0; 1728} 1729 1730static ACPI_TABLE_HEADER * 1731acpi_map_rsdt(void) 1732{ 1733 ACPI_PHYSICAL_ADDRESS paddr; 1734 ACPI_TABLE_RSDP *rsdp; 1735 1736 paddr = AcpiOsGetRootPointer(); 1737 if (paddr == 0) { 1738 printf("ACPI: couldn't get root pointer\n"); 1739 return NULL; 1740 } 1741 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1742 if (rsdp == NULL) { 1743 printf("ACPI: couldn't map RSDP\n"); 1744 return NULL; 1745 } 1746 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1747 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1748 else 1749 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1750 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1751 1752 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1753} 1754 1755static void 1756acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1757{ 1758 if (rsdt == NULL) 1759 return; 1760 1761 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1762} 1763