acpi.c revision 1.160
1/* $NetBSD: acpi.c,v 1.160 2010/03/16 05:48:42 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 1.160 2010/03/16 05:48:42 jruoho Exp $"); 74 75#include "opt_acpi.h" 76#include "opt_pcifixup.h" 77 78#include <sys/param.h> 79#include <sys/device.h> 80#include <sys/kernel.h> 81#include <sys/malloc.h> 82#include <sys/mutex.h> 83#include <sys/sysctl.h> 84#include <sys/systm.h> 85 86#include <dev/acpi/acpireg.h> 87#include <dev/acpi/acpivar.h> 88#include <dev/acpi/acpi_osd.h> 89#include <dev/acpi/acpi_pci.h> 90#include <dev/acpi/acpi_timer.h> 91#include <dev/acpi/acpi_wakedev.h> 92 93#ifdef ACPIVERBOSE 94#include <dev/acpi/acpidevs_data.h> 95#endif 96 97#define _COMPONENT ACPI_TOOLS 98ACPI_MODULE_NAME ("acpi") 99 100#if defined(ACPI_PCI_FIXUP) 101#error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 102#endif 103 104#ifdef PCI_INTR_FIXUP_DISABLED 105#include <dev/pci/pcidevs.h> 106#endif 107 108MALLOC_DECLARE(M_ACPI); 109 110#include <machine/acpi_machdep.h> 111 112#ifdef ACPI_DEBUGGER 113#define ACPI_DBGR_INIT 0x01 114#define ACPI_DBGR_TABLES 0x02 115#define ACPI_DBGR_ENABLE 0x04 116#define ACPI_DBGR_PROBE 0x08 117#define ACPI_DBGR_RUNNING 0x10 118 119static int acpi_dbgr = 0x00; 120#endif 121 122static ACPI_TABLE_DESC acpi_initial_tables[128]; 123 124static int acpi_match(device_t, cfdata_t, void *); 125static void acpi_attach(device_t, device_t, void *); 126static void acpi_childdet(device_t, device_t); 127static int acpi_detach(device_t, int); 128 129static int acpi_rescan(device_t, const char *, const int *); 130static void acpi_rescan1(struct acpi_softc *, const char *, const int *); 131static void acpi_rescan_nodes(struct acpi_softc *); 132static void acpi_rescan_capabilities(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_t, 197 void *, void **); 198 199static void acpi_enable_fixed_events(struct acpi_softc *); 200 201static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 202static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 203static int is_available_state(struct acpi_softc *, int); 204 205static bool acpi_suspend(device_t, const pmf_qual_t *); 206static bool acpi_resume(device_t, const pmf_qual_t *); 207 208#ifdef ACPI_ACTIVATE_DEV 209static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 210static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 211#endif 212 213/* 214 * acpi_probe: 215 * 216 * Probe for ACPI support. This is called by the 217 * machine-dependent ACPI front-end. All of the 218 * actual work is done by ACPICA. 219 * 220 * NOTE: This is not an autoconfiguration interface function. 221 */ 222int 223acpi_probe(void) 224{ 225 static int beenhere; 226 ACPI_TABLE_HEADER *rsdt; 227 ACPI_STATUS rv; 228 229 if (beenhere != 0) 230 panic("acpi_probe: ACPI has already been probed"); 231 beenhere = 1; 232 233 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 234 235 /* 236 * Start up ACPICA. 237 */ 238#ifdef ACPI_DEBUGGER 239 if (acpi_dbgr & ACPI_DBGR_INIT) 240 acpi_osd_debugger(); 241#endif 242 243 AcpiGbl_AllMethodsSerialized = FALSE; 244 AcpiGbl_EnableInterpreterSlack = TRUE; 245 246 rv = AcpiInitializeSubsystem(); 247 if (ACPI_FAILURE(rv)) { 248 printf("ACPI: unable to initialize ACPICA: %s\n", 249 AcpiFormatException(rv)); 250 return 0; 251 } 252 253 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 254 if (ACPI_FAILURE(rv)) { 255#ifdef ACPI_DEBUG 256 printf("ACPI: unable to initialize ACPI tables: %s\n", 257 AcpiFormatException(rv)); 258#endif 259 AcpiTerminate(); 260 return 0; 261 } 262 263 rv = AcpiReallocateRootTable(); 264 if (ACPI_FAILURE(rv)) { 265 printf("ACPI: unable to reallocate root table: %s\n", 266 AcpiFormatException(rv)); 267 AcpiTerminate(); 268 return 0; 269 } 270 271#ifdef ACPI_DEBUGGER 272 if (acpi_dbgr & ACPI_DBGR_TABLES) 273 acpi_osd_debugger(); 274#endif 275 276 rv = AcpiLoadTables(); 277 if (ACPI_FAILURE(rv)) { 278 printf("ACPI: unable to load tables: %s\n", 279 AcpiFormatException(rv)); 280 AcpiTerminate(); 281 return 0; 282 } 283 284 rsdt = acpi_map_rsdt(); 285 if (rsdt == NULL) { 286 printf("ACPI: unable to map RSDT\n"); 287 AcpiTerminate(); 288 return 0; 289 } 290 291 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 292 printf("ACPI: BIOS implementation in listed as broken:\n"); 293 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 294 "AslId <%4.4s,%08x>\n", 295 rsdt->OemId, rsdt->OemTableId, 296 rsdt->OemRevision, 297 rsdt->AslCompilerId, 298 rsdt->AslCompilerRevision); 299 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 300 acpi_unmap_rsdt(rsdt); 301 AcpiTerminate(); 302 return 0; 303 } 304 305 acpi_unmap_rsdt(rsdt); 306 307#if notyet 308 /* Install the default address space handlers. */ 309 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 310 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 311 if (ACPI_FAILURE(rv)) { 312 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 313 AcpiFormatException(rv)); 314 AcpiTerminate(); 315 return 0; 316 } 317 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 318 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 319 if (ACPI_FAILURE(rv)) { 320 printf("ACPI: unable to initialize SystemIO handler: %s\n", 321 AcpiFormatException(rv)); 322 AcpiTerminate(); 323 return 0; 324 } 325 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 326 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 327 if (ACPI_FAILURE(rv)) { 328 printf("ACPI: unable to initialize PciConfig handler: %s\n", 329 AcpiFormatException(rv)); 330 AcpiTerminate(); 331 return 0; 332 } 333#endif 334 335 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 336 if (ACPI_FAILURE(rv)) { 337 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 338 AcpiTerminate(); 339 return 0; 340 } 341 342 /* 343 * Looks like we have ACPI! 344 */ 345 346 return 1; 347} 348 349static int 350acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 351{ 352 struct cfattach *ca; 353 354 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 355 return (ca == &acpi_ca); 356} 357 358int 359acpi_check(device_t parent, const char *ifattr) 360{ 361 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 362} 363 364ACPI_PHYSICAL_ADDRESS 365acpi_OsGetRootPointer(void) 366{ 367 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 368 369 /* 370 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 371 * 372 * IA-64: Use the EFI. 373 * 374 * We let MD code handle this since there are multiple 375 * ways to do it. 376 */ 377 378 PhysicalAddress = acpi_md_OsGetRootPointer(); 379 380 if (acpi_root_pointer == 0) 381 acpi_root_pointer = PhysicalAddress; 382 383 return PhysicalAddress; 384} 385 386/* 387 * acpi_match: 388 * 389 * Autoconfiguration `match' routine. 390 */ 391static int 392acpi_match(device_t parent, cfdata_t match, void *aux) 393{ 394 /* 395 * XXX Check other locators? Hard to know -- machine 396 * dependent code has already checked for the presence 397 * of ACPI by calling acpi_probe(), so I suppose we 398 * don't really have to do anything else. 399 */ 400 return 1; 401} 402 403/* Remove references to child devices. 404 * 405 * XXX Need to reclaim any resources? 406 */ 407static void 408acpi_childdet(device_t self, device_t child) 409{ 410 struct acpi_softc *sc = device_private(self); 411 struct acpi_devnode *ad; 412 413 if (sc->sc_apmbus == child) 414 sc->sc_apmbus = NULL; 415 416 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 417 418 if (ad->ad_device == child) 419 ad->ad_device = NULL; 420 } 421} 422 423/* 424 * acpi_attach: 425 * 426 * Autoconfiguration `attach' routine. Finish initializing 427 * ACPICA (some initialization was done in acpi_probe(), 428 * which was required to check for the presence of ACPI), 429 * and enable the ACPI subsystem. 430 */ 431static void 432acpi_attach(device_t parent, device_t self, void *aux) 433{ 434 struct acpi_softc *sc = device_private(self); 435 struct acpibus_attach_args *aa = aux; 436 ACPI_STATUS rv; 437 ACPI_TABLE_HEADER *rsdt; 438 439 aprint_naive("\n"); 440 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 441 442 if (acpi_softc != NULL) 443 panic("acpi_attach: ACPI has already been attached"); 444 445 sysmon_power_settype("acpi"); 446 447 rsdt = acpi_map_rsdt(); 448 if (rsdt) { 449 aprint_verbose_dev( 450 self, 451 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 452 rsdt->OemId, rsdt->OemTableId, 453 rsdt->OemRevision, 454 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 455 } else 456 aprint_error_dev(self, "X/RSDT: Not found\n"); 457 458 acpi_unmap_rsdt(rsdt); 459 460 sc->sc_dev = self; 461 sc->sc_quirks = acpi_find_quirks(); 462 463 sc->sc_iot = aa->aa_iot; 464 sc->sc_memt = aa->aa_memt; 465 sc->sc_pc = aa->aa_pc; 466 sc->sc_pciflags = aa->aa_pciflags; 467 sc->sc_ic = aa->aa_ic; 468 469 SIMPLEQ_INIT(&sc->sc_devnodes); 470 471 acpi_softc = sc; 472 473 /* 474 * Register null power management handler. 475 */ 476 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 477 aprint_error_dev(self, "couldn't establish power handler\n"); 478 479 /* 480 * Bring ACPI on-line. 481 */ 482#ifdef ACPI_DEBUGGER 483 if (acpi_dbgr & ACPI_DBGR_ENABLE) 484 acpi_osd_debugger(); 485#endif 486 487#define ACPI_ENABLE_PHASE1 \ 488 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 489#define ACPI_ENABLE_PHASE2 \ 490 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 491 ACPI_NO_ADDRESS_SPACE_INIT) 492 493 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 494 if (ACPI_FAILURE(rv)) { 495 aprint_error_dev(self, "unable to enable ACPI: %s\n", 496 AcpiFormatException(rv)); 497 return; 498 } 499 500 acpi_md_callback(); 501 502 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 503 if (ACPI_FAILURE(rv)) { 504 aprint_error_dev(self, "unable to enable ACPI: %s\n", 505 AcpiFormatException(rv)); 506 return; 507 } 508 509 /* Early EC handler initialization if ECDT table is available. */ 510 config_found_ia(self, "acpiecdtbus", NULL, NULL); 511 512 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 513 if (ACPI_FAILURE(rv)) { 514 aprint_error_dev(self, 515 "unable to initialize ACPI objects: %s\n", 516 AcpiFormatException(rv)); 517 return; 518 } 519 acpi_active = 1; 520 521 /* Our current state is "awake". */ 522 sc->sc_sleepstate = ACPI_STATE_S0; 523 524 /* Show SCI interrupt. */ 525 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 526 AcpiGbl_FADT.SciInterrupt); 527 528 /* 529 * Check for fixed-hardware features. 530 */ 531 acpi_enable_fixed_events(sc); 532 acpitimer_init(); 533 534 /* 535 * Scan the namespace and build our device tree. 536 */ 537#ifdef ACPI_DEBUGGER 538 if (acpi_dbgr & ACPI_DBGR_PROBE) 539 acpi_osd_debugger(); 540#endif 541 acpi_build_tree(sc); 542 543 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 544 "%s%s%s%s%s%s", 545 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 546 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 547 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 548 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 549 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 550 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 551 552#ifdef ACPI_DEBUGGER 553 if (acpi_dbgr & ACPI_DBGR_RUNNING) 554 acpi_osd_debugger(); 555#endif 556 557#ifdef ACPI_DEBUG 558 acpi_debug_init(); 559#endif 560} 561 562static int 563acpi_detach(device_t self, int flags) 564{ 565 int rc; 566 567#ifdef ACPI_DEBUGGER 568 if (acpi_dbgr & ACPI_DBGR_RUNNING) 569 acpi_osd_debugger(); 570#endif 571 572 if ((rc = config_detach_children(self, flags)) != 0) 573 return rc; 574 575#ifdef ACPI_DEBUGGER 576 if (acpi_dbgr & ACPI_DBGR_PROBE) 577 acpi_osd_debugger(); 578#endif 579 580 if ((rc = acpitimer_detach()) != 0) 581 return rc; 582 583#if 0 584 /* 585 * Bring ACPI on-line. 586 */ 587#ifdef ACPI_DEBUGGER 588 if (acpi_dbgr & ACPI_DBGR_ENABLE) 589 acpi_osd_debugger(); 590#endif 591 592#define ACPI_ENABLE_PHASE1 \ 593 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 594#define ACPI_ENABLE_PHASE2 \ 595 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 596 ACPI_NO_ADDRESS_SPACE_INIT) 597 598 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 599 if (ACPI_FAILURE(rv)) { 600 aprint_error_dev(self, "unable to enable ACPI: %s\n", 601 AcpiFormatException(rv)); 602 return; 603 } 604 605 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 606 if (ACPI_FAILURE(rv)) { 607 aprint_error_dev(self, "unable to enable ACPI: %s\n", 608 AcpiFormatException(rv)); 609 return; 610 } 611 612 /* Early EC handler initialization if ECDT table is available. */ 613 config_found_ia(self, "acpiecdtbus", NULL, NULL); 614 615 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 616 if (ACPI_FAILURE(rv)) { 617 aprint_error_dev(self, 618 "unable to initialize ACPI objects: %s\n", 619 AcpiFormatException(rv)); 620 return; 621 } 622 acpi_active = 1; 623 624 acpi_enable_fixed_events(sc); 625#endif 626 627 pmf_device_deregister(self); 628 629#if 0 630 sysmon_power_settype("acpi"); 631#endif 632 acpi_softc = NULL; 633 634 return 0; 635} 636 637static bool 638acpi_suspend(device_t dv, const pmf_qual_t *qual) 639{ 640 acpi_suspended = 1; 641 return true; 642} 643 644static bool 645acpi_resume(device_t dv, const pmf_qual_t *qual) 646{ 647 acpi_suspended = 0; 648 return true; 649} 650 651#if 0 652/* 653 * acpi_disable: 654 * 655 * Disable ACPI. 656 */ 657static ACPI_STATUS 658acpi_disable(struct acpi_softc *sc) 659{ 660 ACPI_STATUS rv = AE_OK; 661 662 if (acpi_active) { 663 rv = AcpiDisable(); 664 if (ACPI_SUCCESS(rv)) 665 acpi_active = 0; 666 } 667 return rv; 668} 669#endif 670 671/* 672 * acpi_build_tree: 673 * 674 * Scan relevant portions of the ACPI namespace and attach 675 * child devices. 676 */ 677static void 678acpi_build_tree(struct acpi_softc *sc) 679{ 680 static const char *scopes[] = { 681 "\\_PR_", "\\_SB_", "\\_SI_", "\\_TZ_", NULL 682 }; 683 684 ACPI_HANDLE parent; 685 ACPI_STATUS rv; 686 int i; 687 688 /* 689 * Scan the namespace and build our device tree. 690 */ 691 for (i = 0; scopes[i] != NULL; i++) { 692 693 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], &parent); 694 695 if (ACPI_SUCCESS(rv)) 696 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 697 acpi_make_devnode, sc, NULL); 698 } 699 700 acpi_rescan1(sc, NULL, NULL); 701 acpi_rescan_capabilities(sc); 702 703 acpi_pcidev_scan(sc); 704} 705 706static int 707acpi_rescan(device_t self, const char *ifattr, const int *locators) 708{ 709 struct acpi_softc *sc = device_private(self); 710 711 acpi_rescan1(sc, ifattr, locators); 712 return 0; 713} 714 715static void 716acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 717{ 718 if (ifattr_match(ifattr, "acpinodebus")) 719 acpi_rescan_nodes(sc); 720 721 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 722 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 723 NULL); 724 } 725} 726 727static void 728acpi_rescan_nodes(struct acpi_softc *sc) 729{ 730 struct acpi_attach_args aa; 731 struct acpi_devnode *ad; 732 733 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 734 735 if (ad->ad_device != NULL) 736 continue; 737 738 aa.aa_node = ad; 739 aa.aa_iot = sc->sc_iot; 740 aa.aa_memt = sc->sc_memt; 741 aa.aa_pc = sc->sc_pc; 742 aa.aa_pciflags = sc->sc_pciflags; 743 aa.aa_ic = sc->sc_ic; 744 745 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 746 /* 747 * XXX We only attach devices which are: 748 * 749 * - present 750 * - enabled 751 * - functioning properly 752 * 753 * However, if enabled, it's decoding resources, 754 * so we should claim them, if possible. 755 * Requires changes to bus_space(9). 756 */ 757 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 758 ACPI_VALID_STA && 759 (ad->ad_devinfo->CurrentStatus & 760 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 761 ACPI_STA_DEV_OK)) != 762 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 763 ACPI_STA_DEV_OK)) 764 continue; 765 } 766 767 /* 768 * XXX Same problem as above... 769 * 770 * Do this check only for devices, as e.g. 771 * a Thermal Zone doesn't have a HID. 772 */ 773 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 774 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 775 continue; 776 777 /* 778 * Handled internally. 779 */ 780 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 781 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 782 continue; 783 784 /* 785 * Skip ignored HIDs. 786 */ 787 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 788 continue; 789 790 ad->ad_device = config_found_ia(sc->sc_dev, 791 "acpinodebus", &aa, acpi_print); 792 } 793} 794 795#define ACPI_STA_DEV_VALID \ 796 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 797 798/* 799 * acpi_rescan_capabilities: 800 * 801 * Scan device capabilities. 802 */ 803static void 804acpi_rescan_capabilities(struct acpi_softc *sc) 805{ 806 struct acpi_devnode *ad; 807 ACPI_DEVICE_INFO *di; 808 ACPI_HANDLE tmp; 809 ACPI_STATUS rv; 810 811 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 812 813 di = ad->ad_devinfo; 814 815 if (di->Type != ACPI_TYPE_DEVICE) 816 continue; 817 818 if ((di->Valid & ACPI_VALID_STA) != 0 && 819 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 820 ACPI_STA_DEV_VALID) 821 continue; 822 823 /* 824 * Scan power resource capabilities. 825 */ 826 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 827 828 if (ACPI_FAILURE(rv)) 829 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 830 831 if (ACPI_SUCCESS(rv)) 832 ad->ad_flags |= ACPI_DEVICE_POWER; 833 834 /* 835 * Scan wake-up capabilities. 836 */ 837 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 838 839 if (ACPI_SUCCESS(rv)) { 840 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 841 acpi_wakedev_add(ad); 842 } 843 844 if (ad->ad_flags != 0) { 845 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 846 847 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 848 aprint_debug("power "); 849 850 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 851 aprint_debug("wake-up "); 852 853 aprint_debug("\n"); 854 } 855 } 856} 857 858#undef ACPI_STA_DEV_VALID 859 860/* 861 * acpi_make_devnode: 862 * 863 * Make an ACPI devnode. 864 */ 865static ACPI_STATUS 866acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 867 void *context, void **status) 868{ 869 struct acpi_softc *sc = context; 870 struct acpi_devnode *ad; 871 ACPI_DEVICE_INFO *devinfo; 872 ACPI_OBJECT_TYPE type; 873 ACPI_NAME_UNION *anu; 874 ACPI_STATUS rv; 875 int clear, i; 876 877 rv = AcpiGetType(handle, &type); 878 879 if (ACPI_FAILURE(rv)) 880 return AE_OK; /* Do not terminate the walk. */ 881 882 rv = AcpiGetObjectInfo(handle, &devinfo); 883 884 if (ACPI_FAILURE(rv)) { 885 aprint_debug_dev(sc->sc_dev, "failed to get object " 886 "information: %s\n", AcpiFormatException(rv)); 887 return AE_OK; 888 } 889 890 switch (type) { 891 892 case ACPI_TYPE_DEVICE: 893 894#ifdef ACPI_ACTIVATE_DEV 895 acpi_activate_device(handle, &devinfo); 896#endif 897 898 case ACPI_TYPE_PROCESSOR: 899 case ACPI_TYPE_THERMAL: 900 case ACPI_TYPE_POWER: 901 902 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 903 904 if (ad == NULL) 905 return AE_NO_MEMORY; 906 907 ad->ad_parent = sc->sc_dev; 908 ad->ad_devinfo = devinfo; 909 ad->ad_handle = handle; 910 ad->ad_type = type; 911 912 anu = (ACPI_NAME_UNION *)&devinfo->Name; 913 ad->ad_name[4] = '\0'; 914 915 for (i = 3, clear = 0; i >= 0; i--) { 916 917 if (clear == 0 && anu->Ascii[i] == '_') 918 ad->ad_name[i] = '\0'; 919 else { 920 ad->ad_name[i] = anu->Ascii[i]; 921 clear = 1; 922 } 923 } 924 925 if (ad->ad_name[0] == '\0') 926 ad->ad_name[0] = '_'; 927 928 SIMPLEQ_INSERT_TAIL(&sc->sc_devnodes, ad, ad_list); 929 930#ifdef ACPIVERBOSE 931 932 if (type != ACPI_TYPE_DEVICE) 933 return AE_OK; 934 935 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 936 937 aprint_normal("HID %-10s ", 938 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 939 devinfo->HardwareId.String: "-"); 940 941 aprint_normal("UID %-4s ", 942 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 943 devinfo->UniqueId.String : "-"); 944 945 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 946 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 947 else 948 aprint_normal("STA %10s ", "-"); 949 950 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 951 aprint_normal("ADR 0x%016" PRIX64"", 952 devinfo->Address); 953 954 aprint_normal("\n"); 955#endif 956 } 957 958 return AE_OK; 959} 960 961/* 962 * acpi_print: 963 * 964 * Autoconfiguration print routine for ACPI node bus. 965 */ 966static int 967acpi_print(void *aux, const char *pnp) 968{ 969 struct acpi_attach_args *aa = aux; 970 ACPI_STATUS rv; 971 972 if (pnp) { 973 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 974 char *pnpstr = 975 aa->aa_node->ad_devinfo->HardwareId.String; 976 ACPI_BUFFER buf; 977 978 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 979 pnpstr); 980 981 rv = acpi_eval_struct(aa->aa_node->ad_handle, 982 "_STR", &buf); 983 if (ACPI_SUCCESS(rv)) { 984 ACPI_OBJECT *obj = buf.Pointer; 985 switch (obj->Type) { 986 case ACPI_TYPE_STRING: 987 aprint_normal("[%s] ", obj->String.Pointer); 988 break; 989 case ACPI_TYPE_BUFFER: 990 aprint_normal("buffer %p ", obj->Buffer.Pointer); 991 break; 992 default: 993 aprint_normal("type %u ",obj->Type); 994 break; 995 } 996 ACPI_FREE(buf.Pointer); 997 } 998#ifdef ACPIVERBOSE 999 else { 1000 int i; 1001 1002 for (i = 0; i < __arraycount(acpi_knowndevs); 1003 i++) { 1004 if (strcmp(acpi_knowndevs[i].pnp, 1005 pnpstr) == 0) { 1006 aprint_normal("[%s] ", 1007 acpi_knowndevs[i].str); 1008 } 1009 } 1010 } 1011 1012#endif 1013 aprint_normal("at %s", pnp); 1014 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1015 aprint_normal("%s (ACPI Object Type '%s' " 1016 "[0x%02x]) ", aa->aa_node->ad_name, 1017 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1018 aa->aa_node->ad_devinfo->Type); 1019 aprint_normal("at %s", pnp); 1020 } else 1021 return 0; 1022 } else { 1023 aprint_normal(" (%s", aa->aa_node->ad_name); 1024 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1025 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1026 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1027 const char *uid; 1028 1029 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1030 if (uid[0] == '\0') 1031 uid = "<null>"; 1032 aprint_normal("-%s", uid); 1033 } 1034 } 1035 aprint_normal(")"); 1036 } 1037 1038 return UNCONF; 1039} 1040 1041/***************************************************************************** 1042 * ACPI fixed-hardware feature handlers 1043 *****************************************************************************/ 1044 1045static UINT32 acpi_fixed_button_handler(void *); 1046static void acpi_fixed_button_pressed(void *); 1047 1048/* 1049 * acpi_enable_fixed_events: 1050 * 1051 * Enable any fixed-hardware feature handlers. 1052 */ 1053static void 1054acpi_enable_fixed_events(struct acpi_softc *sc) 1055{ 1056 static int beenhere; 1057 ACPI_STATUS rv; 1058 1059 KASSERT(beenhere == 0); 1060 beenhere = 1; 1061 1062 /* 1063 * Check for fixed-hardware buttons. 1064 */ 1065 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1066 aprint_verbose_dev(sc->sc_dev, 1067 "fixed-feature power button present\n"); 1068 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1069 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1070 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1071 aprint_error_dev(sc->sc_dev, 1072 "unable to register fixed power " 1073 "button with sysmon\n"); 1074 } else { 1075 rv = AcpiInstallFixedEventHandler( 1076 ACPI_EVENT_POWER_BUTTON, 1077 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1078 if (ACPI_FAILURE(rv)) { 1079 aprint_error_dev(sc->sc_dev, 1080 "unable to install handler " 1081 "for fixed power button: %s\n", 1082 AcpiFormatException(rv)); 1083 } 1084 } 1085 } 1086 1087 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1088 aprint_verbose_dev(sc->sc_dev, 1089 "fixed-feature sleep button present\n"); 1090 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1091 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1092 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1093 aprint_error_dev(sc->sc_dev, 1094 "unable to register fixed sleep " 1095 "button with sysmon\n"); 1096 } else { 1097 rv = AcpiInstallFixedEventHandler( 1098 ACPI_EVENT_SLEEP_BUTTON, 1099 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1100 if (ACPI_FAILURE(rv)) { 1101 aprint_error_dev(sc->sc_dev, 1102 "unable to install handler " 1103 "for fixed sleep button: %s\n", 1104 AcpiFormatException(rv)); 1105 } 1106 } 1107 } 1108} 1109 1110/* 1111 * acpi_fixed_button_handler: 1112 * 1113 * Event handler for the fixed buttons. 1114 */ 1115static UINT32 1116acpi_fixed_button_handler(void *context) 1117{ 1118 static const int handler = OSL_NOTIFY_HANDLER; 1119 struct sysmon_pswitch *smpsw = context; 1120 1121 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s\n", __func__)); 1122 1123 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1124 1125 return ACPI_INTERRUPT_HANDLED; 1126} 1127 1128/* 1129 * acpi_fixed_button_pressed: 1130 * 1131 * Deal with a fixed button being pressed. 1132 */ 1133static void 1134acpi_fixed_button_pressed(void *context) 1135{ 1136 struct sysmon_pswitch *smpsw = context; 1137 1138 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1139 __func__, smpsw->smpsw_name)); 1140 1141 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1142} 1143 1144/***************************************************************************** 1145 * ACPI utility routines. 1146 *****************************************************************************/ 1147 1148/* 1149 * acpi_eval_integer: 1150 * 1151 * Evaluate an integer object. 1152 */ 1153ACPI_STATUS 1154acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1155{ 1156 ACPI_STATUS rv; 1157 ACPI_BUFFER buf; 1158 ACPI_OBJECT param; 1159 1160 if (handle == NULL) 1161 handle = ACPI_ROOT_OBJECT; 1162 1163 buf.Pointer = ¶m; 1164 buf.Length = sizeof(param); 1165 1166 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1167 ACPI_TYPE_INTEGER); 1168 if (ACPI_SUCCESS(rv)) 1169 *valp = param.Integer.Value; 1170 1171 return rv; 1172} 1173 1174/* 1175 * acpi_eval_set_integer: 1176 * 1177 * Evaluate an integer object with a single integer input parameter. 1178 */ 1179ACPI_STATUS 1180acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1181{ 1182 ACPI_OBJECT param_arg; 1183 ACPI_OBJECT_LIST param_args; 1184 1185 if (handle == NULL) 1186 handle = ACPI_ROOT_OBJECT; 1187 1188 param_arg.Type = ACPI_TYPE_INTEGER; 1189 param_arg.Integer.Value = arg; 1190 1191 param_args.Count = 1; 1192 param_args.Pointer = ¶m_arg; 1193 1194 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1195} 1196 1197/* 1198 * acpi_eval_string: 1199 * 1200 * Evaluate a (Unicode) string object. 1201 */ 1202ACPI_STATUS 1203acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1204{ 1205 ACPI_OBJECT *obj; 1206 ACPI_BUFFER buf; 1207 ACPI_STATUS rv; 1208 1209 rv = acpi_eval_struct(handle, path, &buf); 1210 1211 if (ACPI_FAILURE(rv)) 1212 return rv; 1213 1214 obj = buf.Pointer; 1215 1216 if (obj->Type != ACPI_TYPE_STRING) { 1217 rv = AE_TYPE; 1218 goto out; 1219 } 1220 1221 if (obj->String.Length == 0) { 1222 rv = AE_BAD_DATA; 1223 goto out; 1224 } 1225 1226 *stringp = ACPI_ALLOCATE(obj->String.Length + 1); 1227 1228 if (*stringp == NULL) { 1229 rv = AE_NO_MEMORY; 1230 goto out; 1231 } 1232 1233 (void)memcpy(*stringp, obj->String.Pointer, obj->String.Length); 1234 1235 (*stringp)[obj->String.Length] = '\0'; 1236 1237out: 1238 ACPI_FREE(buf.Pointer); 1239 1240 return rv; 1241} 1242 1243/* 1244 * acpi_eval_struct: 1245 * 1246 * Evaluate a more complex structure. 1247 * Caller must free buf.Pointer by ACPI_FREE(). 1248 */ 1249ACPI_STATUS 1250acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1251{ 1252 ACPI_STATUS rv; 1253 1254 if (handle == NULL) 1255 handle = ACPI_ROOT_OBJECT; 1256 1257 bufp->Pointer = NULL; 1258 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1259 1260 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1261 1262 return rv; 1263} 1264 1265/* 1266 * acpi_eval_reference_handle: 1267 * 1268 * Evaluate a reference handle from an element in a package. 1269 */ 1270ACPI_STATUS 1271acpi_eval_reference_handle(ACPI_OBJECT *elm, ACPI_HANDLE *handle) 1272{ 1273 1274 if (elm == NULL || handle == NULL) 1275 return AE_BAD_PARAMETER; 1276 1277 switch (elm->Type) { 1278 1279 case ACPI_TYPE_ANY: 1280 case ACPI_TYPE_LOCAL_REFERENCE: 1281 1282 if (elm->Reference.Handle == NULL) 1283 return AE_NULL_ENTRY; 1284 1285 *handle = elm->Reference.Handle; 1286 1287 return AE_OK; 1288 1289 case ACPI_TYPE_STRING: 1290 return AcpiGetHandle(NULL, elm->String.Pointer, handle); 1291 1292 default: 1293 return AE_TYPE; 1294 } 1295} 1296 1297/* 1298 * acpi_foreach_package_object: 1299 * 1300 * Iterate over all objects in a package, and pass them all 1301 * to a function. If the called function returns non AE_OK, the 1302 * iteration is stopped and that value is returned. 1303 */ 1304ACPI_STATUS 1305acpi_foreach_package_object(ACPI_OBJECT *pkg, 1306 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1307 void *arg) 1308{ 1309 ACPI_STATUS rv = AE_OK; 1310 int i; 1311 1312 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1313 return AE_BAD_PARAMETER; 1314 1315 for (i = 0; i < pkg->Package.Count; i++) { 1316 rv = (*func)(&pkg->Package.Elements[i], arg); 1317 if (ACPI_FAILURE(rv)) 1318 break; 1319 } 1320 1321 return rv; 1322} 1323 1324/* 1325 * acpi_name: 1326 * 1327 * Return a complete pathname from a handle. 1328 * 1329 * Note that the function uses static data storage; 1330 * if the data is needed for future use, it should be 1331 * copied before any subsequent calls overwrite it. 1332 */ 1333const char * 1334acpi_name(ACPI_HANDLE handle) 1335{ 1336 static char buffer[80]; 1337 ACPI_BUFFER buf; 1338 ACPI_STATUS rv; 1339 1340 buf.Length = sizeof(buffer); 1341 buf.Pointer = buffer; 1342 1343 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1344 if (ACPI_FAILURE(rv)) 1345 return "(unknown acpi path)"; 1346 return buffer; 1347} 1348 1349/* 1350 * acpi_get: 1351 * 1352 * Fetch data info the specified (empty) ACPI buffer. 1353 * Caller must free buf.Pointer by ACPI_FREE(). 1354 */ 1355ACPI_STATUS 1356acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1357 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1358{ 1359 buf->Pointer = NULL; 1360 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1361 1362 return (*getit)(handle, buf); 1363} 1364 1365 1366/* 1367 * acpi_match_hid 1368 * 1369 * Match given ids against _HID and _CIDs. 1370 */ 1371int 1372acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1373{ 1374 int i; 1375 1376 while (*ids) { 1377 if (ad->Valid & ACPI_VALID_HID) { 1378 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1379 return 1; 1380 } 1381 1382 if (ad->Valid & ACPI_VALID_CID) { 1383 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1384 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1385 return 1; 1386 } 1387 } 1388 ids++; 1389 } 1390 1391 return 0; 1392} 1393 1394/* 1395 * acpi_wake_gpe_helper 1396 * 1397 * Set/unset GPE as both Runtime and Wake. 1398 */ 1399static void 1400acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1401{ 1402 ACPI_OBJECT *elm, *obj; 1403 ACPI_INTEGER val; 1404 ACPI_BUFFER buf; 1405 ACPI_STATUS rv; 1406 1407 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1408 1409 if (ACPI_FAILURE(rv)) 1410 return; 1411 1412 obj = buf.Pointer; 1413 1414 if (obj->Type != ACPI_TYPE_PACKAGE || obj->Package.Count < 2) 1415 goto out; 1416 1417 /* 1418 * As noted in ACPI 3.0 (section 7.2.10), the _PRW object is 1419 * a package in which the first element is either an integer 1420 * or again a package. In the latter case the package inside 1421 * the package element has two elements, a reference handle 1422 * and the GPE number. 1423 */ 1424 elm = &obj->Package.Elements[0]; 1425 1426 switch (elm->Type) { 1427 1428 case ACPI_TYPE_INTEGER: 1429 val = elm->Integer.Value; 1430 break; 1431 1432 case ACPI_TYPE_PACKAGE: 1433 1434 if (elm->Package.Count < 2) 1435 goto out; 1436 1437 if (elm->Package.Elements[0].Type != ACPI_TYPE_LOCAL_REFERENCE) 1438 goto out; 1439 1440 if (elm->Package.Elements[1].Type != ACPI_TYPE_INTEGER) 1441 goto out; 1442 1443 val = elm->Package.Elements[1].Integer.Value; 1444 break; 1445 1446 default: 1447 goto out; 1448 } 1449 1450 if (enable) { 1451 (void)AcpiSetGpeType(NULL, val, ACPI_GPE_TYPE_WAKE_RUN); 1452 (void)AcpiEnableGpe(NULL, val, ACPI_NOT_ISR); 1453 } else 1454 (void)AcpiDisableGpe(NULL, val, ACPI_NOT_ISR); 1455 1456out: 1457 ACPI_FREE(buf.Pointer); 1458} 1459 1460/* 1461 * acpi_clear_wake_gpe 1462 * 1463 * Clear GPE as both Runtime and Wake. 1464 */ 1465void 1466acpi_clear_wake_gpe(ACPI_HANDLE handle) 1467{ 1468 acpi_wake_gpe_helper(handle, false); 1469} 1470 1471/* 1472 * acpi_set_wake_gpe 1473 * 1474 * Set GPE as both Runtime and Wake. 1475 */ 1476void 1477acpi_set_wake_gpe(ACPI_HANDLE handle) 1478{ 1479 acpi_wake_gpe_helper(handle, true); 1480} 1481 1482 1483/***************************************************************************** 1484 * ACPI sleep support. 1485 *****************************************************************************/ 1486 1487static int 1488is_available_state(struct acpi_softc *sc, int state) 1489{ 1490 UINT8 type_a, type_b; 1491 1492 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1493 &type_a, &type_b)); 1494} 1495 1496/* 1497 * acpi_enter_sleep_state: 1498 * 1499 * Enter to the specified sleep state. 1500 */ 1501 1502ACPI_STATUS 1503acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1504{ 1505 int err; 1506 ACPI_STATUS ret = AE_OK; 1507 1508 if (state == acpi_sleepstate) 1509 return AE_OK; 1510 1511 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1512 1513 switch (state) { 1514 case ACPI_STATE_S0: 1515 break; 1516 case ACPI_STATE_S1: 1517 case ACPI_STATE_S2: 1518 case ACPI_STATE_S3: 1519 case ACPI_STATE_S4: 1520 if (!is_available_state(sc, state)) { 1521 aprint_error_dev(sc->sc_dev, 1522 "ACPI S%d not available on this platform\n", state); 1523 break; 1524 } 1525 1526 acpi_wakedev_commit(sc, state); 1527 1528 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) { 1529 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1530 break; 1531 } 1532 1533 ret = AcpiEnterSleepStatePrep(state); 1534 if (ACPI_FAILURE(ret)) { 1535 aprint_error_dev(sc->sc_dev, 1536 "failed preparing to sleep (%s)\n", 1537 AcpiFormatException(ret)); 1538 break; 1539 } 1540 1541 acpi_sleepstate = state; 1542 if (state == ACPI_STATE_S1) { 1543 /* just enter the state */ 1544 acpi_md_OsDisableInterrupt(); 1545 ret = AcpiEnterSleepState((UINT8)state); 1546 if (ACPI_FAILURE(ret)) 1547 aprint_error_dev(sc->sc_dev, 1548 "failed to enter sleep state S1: %s\n", 1549 AcpiFormatException(ret)); 1550 AcpiLeaveSleepState((UINT8)state); 1551 } else { 1552 err = acpi_md_sleep(state); 1553 if (state == ACPI_STATE_S4) 1554 AcpiEnable(); 1555 pmf_system_bus_resume(PMF_Q_NONE); 1556 AcpiLeaveSleepState((UINT8)state); 1557 pmf_system_resume(PMF_Q_NONE); 1558 } 1559 1560 break; 1561 case ACPI_STATE_S5: 1562 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1563 if (ACPI_FAILURE(ret)) { 1564 aprint_error_dev(sc->sc_dev, 1565 "failed preparing to sleep (%s)\n", 1566 AcpiFormatException(ret)); 1567 break; 1568 } 1569 DELAY(1000000); 1570 acpi_sleepstate = state; 1571 acpi_md_OsDisableInterrupt(); 1572 AcpiEnterSleepState(ACPI_STATE_S5); 1573 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1574 break; 1575 } 1576 1577 acpi_sleepstate = ACPI_STATE_S0; 1578 return ret; 1579} 1580 1581#ifdef ACPI_ACTIVATE_DEV 1582 1583#define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 1584#define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 1585 1586static void 1587acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1588{ 1589 ACPI_DEVICE_INFO *newdi; 1590 ACPI_STATUS rv; 1591 uint32_t old; 1592 1593 /* 1594 * If the device is valid and present, 1595 * but not enabled, try to activate it. 1596 */ 1597 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 1598 return; 1599 1600 old = (*di)->CurrentStatus; 1601 1602 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 1603 return; 1604 1605 rv = acpi_allocate_resources(handle); 1606 1607 if (ACPI_FAILURE(rv)) 1608 goto fail; 1609 1610 rv = AcpiGetObjectInfo(handle, &newdi); 1611 1612 if (ACPI_FAILURE(rv)) 1613 goto fail; 1614 1615 ACPI_FREE(*di); 1616 *di = newdi; 1617 1618 aprint_verbose_dev(acpi_softc->sc_dev, 1619 "%s activated, STA 0x%08X -> STA 0x%08X\n", 1620 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 1621 1622 return; 1623 1624fail: 1625 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1626 "activate %s\n", (*di)->HardwareId.String); 1627} 1628 1629/* 1630 * XXX: This very incomplete. 1631 */ 1632ACPI_STATUS 1633acpi_allocate_resources(ACPI_HANDLE handle) 1634{ 1635 ACPI_BUFFER bufp, bufc, bufn; 1636 ACPI_RESOURCE *resp, *resc, *resn; 1637 ACPI_RESOURCE_IRQ *irq; 1638 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1639 ACPI_STATUS rv; 1640 uint delta; 1641 1642 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1643 if (ACPI_FAILURE(rv)) 1644 goto out; 1645 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1646 if (ACPI_FAILURE(rv)) { 1647 goto out1; 1648 } 1649 1650 bufn.Length = 1000; 1651 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1652 resp = bufp.Pointer; 1653 resc = bufc.Pointer; 1654 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1655 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1656 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1657 resp = ACPI_NEXT_RESOURCE(resp); 1658 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1659 break; 1660 /* Found identical Id */ 1661 resn->Type = resc->Type; 1662 switch (resc->Type) { 1663 case ACPI_RESOURCE_TYPE_IRQ: 1664 memcpy(&resn->Data, &resp->Data, 1665 sizeof(ACPI_RESOURCE_IRQ)); 1666 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1667 irq->Interrupts[0] = 1668 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1669 Interrupts[irq->InterruptCount-1]; 1670 irq->InterruptCount = 1; 1671 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1672 break; 1673 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1674 memcpy(&resn->Data, &resp->Data, 1675 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1676 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1677#if 0 1678 /* 1679 * XXX not duplicating the interrupt logic above 1680 * because its not clear what it accomplishes. 1681 */ 1682 xirq->Interrupts[0] = 1683 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1684 Interrupts[irq->NumberOfInterrupts-1]; 1685 xirq->NumberOfInterrupts = 1; 1686#endif 1687 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1688 break; 1689 case ACPI_RESOURCE_TYPE_IO: 1690 memcpy(&resn->Data, &resp->Data, 1691 sizeof(ACPI_RESOURCE_IO)); 1692 resn->Length = resp->Length; 1693 break; 1694 default: 1695 aprint_error_dev(acpi_softc->sc_dev, 1696 "%s: invalid type %u\n", __func__, resc->Type); 1697 rv = AE_BAD_DATA; 1698 goto out2; 1699 } 1700 resc = ACPI_NEXT_RESOURCE(resc); 1701 resn = ACPI_NEXT_RESOURCE(resn); 1702 resp = ACPI_NEXT_RESOURCE(resp); 1703 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1704 if (delta >= 1705 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1706 bufn.Length *= 2; 1707 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1708 M_ACPI, M_WAITOK); 1709 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1710 } 1711 } 1712 1713 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1714 aprint_error_dev(acpi_softc->sc_dev, 1715 "%s: resc not exhausted\n", __func__); 1716 rv = AE_BAD_DATA; 1717 goto out3; 1718 } 1719 1720 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1721 rv = AcpiSetCurrentResources(handle, &bufn); 1722 1723 if (ACPI_FAILURE(rv)) 1724 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 1725 "resources: %s\n", __func__, AcpiFormatException(rv)); 1726 1727out3: 1728 free(bufn.Pointer, M_ACPI); 1729out2: 1730 ACPI_FREE(bufc.Pointer); 1731out1: 1732 ACPI_FREE(bufp.Pointer); 1733out: 1734 return rv; 1735} 1736 1737#undef ACPI_DEV_VALID 1738#undef ACPI_DEV_STATUS 1739 1740#endif /* ACPI_ACTIVATE_DEV */ 1741 1742SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1743{ 1744 const struct sysctlnode *node; 1745 const struct sysctlnode *ssnode; 1746 1747 if (sysctl_createv(clog, 0, NULL, NULL, 1748 CTLFLAG_PERMANENT, 1749 CTLTYPE_NODE, "hw", NULL, 1750 NULL, 0, NULL, 0, 1751 CTL_HW, CTL_EOL) != 0) 1752 return; 1753 1754 if (sysctl_createv(clog, 0, NULL, &node, 1755 CTLFLAG_PERMANENT, 1756 CTLTYPE_NODE, "acpi", NULL, 1757 NULL, 0, NULL, 0, 1758 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1759 return; 1760 1761 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1762 CTLTYPE_QUAD, "root", 1763 SYSCTL_DESCR("ACPI root pointer"), 1764 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1765 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1766 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1767 CTLTYPE_STRING, "supported_states", 1768 SYSCTL_DESCR("Supported ACPI system states"), 1769 NULL, 0, acpi_supported_states, 0, 1770 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1771 1772 /* ACPI sleepstate sysctl */ 1773 if (sysctl_createv(NULL, 0, NULL, &node, 1774 CTLFLAG_PERMANENT, 1775 CTLTYPE_NODE, "machdep", NULL, 1776 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1777 return; 1778 if (sysctl_createv(NULL, 0, &node, &ssnode, 1779 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1780 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1781 CTL_EOL) != 0) 1782 return; 1783} 1784 1785static int 1786sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1787{ 1788 int error, t; 1789 struct sysctlnode node; 1790 1791 node = *rnode; 1792 t = acpi_sleepstate; 1793 node.sysctl_data = &t; 1794 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1795 if (error || newp == NULL) 1796 return error; 1797 1798 if (acpi_softc == NULL) 1799 return ENOSYS; 1800 1801 acpi_enter_sleep_state(acpi_softc, t); 1802 1803 return 0; 1804} 1805 1806static ACPI_TABLE_HEADER * 1807acpi_map_rsdt(void) 1808{ 1809 ACPI_PHYSICAL_ADDRESS paddr; 1810 ACPI_TABLE_RSDP *rsdp; 1811 1812 paddr = AcpiOsGetRootPointer(); 1813 if (paddr == 0) { 1814 printf("ACPI: couldn't get root pointer\n"); 1815 return NULL; 1816 } 1817 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1818 if (rsdp == NULL) { 1819 printf("ACPI: couldn't map RSDP\n"); 1820 return NULL; 1821 } 1822 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1823 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1824 else 1825 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1826 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1827 1828 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1829} 1830 1831static void 1832acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1833{ 1834 if (rsdt == NULL) 1835 return; 1836 1837 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1838} 1839