acpi.c revision 1.295
1/* $NetBSD: acpi.c,v 1.295 2021/12/31 14:22:42 riastradh 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 (c) 2003 Wasabi Systems, Inc. 34 * All rights reserved. 35 * 36 * Written by Frank van der Linden 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 * Copyright 2001, 2003 Wasabi Systems, Inc. 69 * All rights reserved. 70 * 71 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 72 * 73 * Redistribution and use in source and binary forms, with or without 74 * modification, are permitted provided that the following conditions 75 * are met: 76 * 1. Redistributions of source code must retain the above copyright 77 * notice, this list of conditions and the following disclaimer. 78 * 2. Redistributions in binary form must reproduce the above copyright 79 * notice, this list of conditions and the following disclaimer in the 80 * documentation and/or other materials provided with the distribution. 81 * 3. All advertising materials mentioning features or use of this software 82 * must display the following acknowledgement: 83 * This product includes software developed for the NetBSD Project by 84 * Wasabi Systems, Inc. 85 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 86 * or promote products derived from this software without specific prior 87 * written permission. 88 * 89 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 90 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 91 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 92 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 93 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 94 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 95 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 96 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 97 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 98 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 99 * POSSIBILITY OF SUCH DAMAGE. 100 */ 101 102#include <sys/cdefs.h> 103__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.295 2021/12/31 14:22:42 riastradh Exp $"); 104 105#include "pci.h" 106#include "opt_acpi.h" 107#include "opt_pcifixup.h" 108 109#include <sys/param.h> 110#include <sys/atomic.h> 111#include <sys/device.h> 112#include <sys/kernel.h> 113#include <sys/kmem.h> 114#include <sys/malloc.h> 115#include <sys/module.h> 116#include <sys/mutex.h> 117#include <sys/sysctl.h> 118#include <sys/systm.h> 119#include <sys/timetc.h> 120 121#include <dev/acpi/acpireg.h> 122#include <dev/acpi/acpivar.h> 123#include <dev/acpi/acpi_mcfg.h> 124#include <dev/acpi/acpi_osd.h> 125#include <dev/acpi/acpi_pci.h> 126#include <dev/acpi/acpi_power.h> 127#include <dev/acpi/acpi_timer.h> 128#include <dev/acpi/acpi_wakedev.h> 129 130#include <machine/acpi_machdep.h> 131 132#include "ioconf.h" 133 134#define _COMPONENT ACPI_BUS_COMPONENT 135ACPI_MODULE_NAME ("acpi") 136 137/* 138 * The acpi_active variable is set when the ACPI subsystem is active. 139 * Machine-dependent code may wish to skip other steps (such as attaching 140 * subsystems that ACPI supercedes) when ACPI is active. 141 */ 142int acpi_active = 0; 143int acpi_suspended = 0; 144int acpi_force_load = 0; 145int acpi_verbose_loaded = 0; 146 147struct acpi_softc *acpi_softc = NULL; 148static uint64_t acpi_root_pointer; 149extern kmutex_t acpi_interrupt_list_mtx; 150static ACPI_HANDLE acpi_scopes[4]; 151ACPI_TABLE_HEADER *madt_header; 152ACPI_TABLE_HEADER *gtdt_header; 153 154/* 155 * This structure provides a context for the ACPI 156 * namespace walk performed in acpi_build_tree(). 157 */ 158struct acpi_walkcontext { 159 struct acpi_softc *aw_sc; 160 struct acpi_devnode *aw_parent; 161}; 162 163/* 164 * Ignored HIDs. 165 */ 166static const char * const acpi_ignored_ids[] = { 167#if defined(i386) || defined(x86_64) 168 "ACPI0007", /* ACPI CPUs do not attach to acpi(4) */ 169 "PNP0000", /* AT interrupt controller is handled internally */ 170 "PNP0001", /* EISA interrupt controller is handled internally */ 171 "PNP0200", /* AT DMA controller is handled internally */ 172 "PNP0A??", /* PCI Busses are handled internally */ 173 "PNP0B00", /* AT RTC is handled internally */ 174 "PNP0C02", /* PnP motherboard resources */ 175 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 176#endif 177#if defined(x86_64) 178 "PNP0C04", /* FPU is handled internally */ 179#endif 180#if defined(__aarch64__) 181 "ACPI0004", /* ACPI module devices are handled internally */ 182 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 183#endif 184 NULL 185}; 186 187/* 188 * Devices that should be attached early. 189 */ 190static const char * const acpi_early_ids[] = { 191 "PNP0C09", /* acpiec(4) */ 192 NULL 193}; 194 195static int acpi_match(device_t, cfdata_t, void *); 196static int acpi_submatch(device_t, cfdata_t, const int *, void *); 197static void acpi_attach(device_t, device_t, void *); 198static int acpi_detach(device_t, int); 199static void acpi_childdet(device_t, device_t); 200static bool acpi_suspend(device_t, const pmf_qual_t *); 201static bool acpi_resume(device_t, const pmf_qual_t *); 202 203static void acpi_build_tree(struct acpi_softc *); 204static void acpi_config_tree(struct acpi_softc *); 205static void acpi_config_dma(struct acpi_softc *); 206static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 207 void *, void **); 208static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 209 void *, void **); 210static void acpi_make_name(struct acpi_devnode *, uint32_t); 211 212static int acpi_rescan(device_t, const char *, const int *); 213static void acpi_rescan_early(struct acpi_softc *); 214static void acpi_rescan_nodes(struct acpi_softc *); 215static void acpi_rescan_capabilities(device_t); 216static int acpi_print(void *aux, const char *); 217 218static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 219 220static void acpi_register_fixed_button(struct acpi_softc *, int); 221static void acpi_deregister_fixed_button(struct acpi_softc *, int); 222static uint32_t acpi_fixed_button_handler(void *); 223static void acpi_fixed_button_pressed(void *); 224 225static void acpi_sleep_init(struct acpi_softc *); 226 227static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 228static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 229static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 230 231static bool acpi_is_scope(struct acpi_devnode *); 232static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 233static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 234 235void acpi_print_verbose_stub(struct acpi_softc *); 236void acpi_print_dev_stub(const char *); 237 238static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 239ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 240 241void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 242void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 243 244bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 245bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 246pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 247 248CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 249 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 250 251/* 252 * Probe for ACPI support. 253 * 254 * This is called by the machine-dependent ACPI front-end. 255 * Note: this is not an autoconfiguration interface function. 256 */ 257int 258acpi_probe(void) 259{ 260 ACPI_TABLE_HEADER *rsdt; 261 ACPI_STATUS rv; 262 int quirks; 263 264 if (acpi_softc != NULL) 265 panic("%s: already probed", __func__); 266 267 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 268 269 /* 270 * Start up ACPICA. 271 */ 272 AcpiGbl_EnableInterpreterSlack = true; 273 274 rv = AcpiInitializeSubsystem(); 275 276 if (ACPI_FAILURE(rv)) { 277 aprint_error("%s: failed to initialize subsystem\n", __func__); 278 return 0; 279 } 280 281 /* 282 * Allocate space for RSDT/XSDT and DSDT, 283 * but allow resizing if more tables exist. 284 */ 285 rv = AcpiInitializeTables(NULL, 2, true); 286 287 if (ACPI_FAILURE(rv)) { 288 aprint_error("%s: failed to initialize tables\n", __func__); 289 goto fail; 290 } 291 292 rv = AcpiLoadTables(); 293 294 if (ACPI_FAILURE(rv)) { 295 aprint_error("%s: failed to load tables\n", __func__); 296 goto fail; 297 } 298 299 rsdt = acpi_map_rsdt(); 300 301 if (rsdt == NULL) { 302 aprint_error("%s: failed to map RSDT\n", __func__); 303 goto fail; 304 } 305 306 quirks = acpi_find_quirks(); 307 308 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { 309 310 aprint_normal("ACPI: BIOS is listed as broken:\n"); 311 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 312 "AslId <%4.4s,%08x>\n", rsdt->OemId, rsdt->OemTableId, 313 rsdt->OemRevision, rsdt->AslCompilerId, 314 rsdt->AslCompilerRevision); 315 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 316 317 acpi_unmap_rsdt(rsdt); 318 goto fail; 319 } 320 321 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { 322 323 aprint_normal("ACPI: BIOS is too old (%s). " 324 "Set acpi_force_load to use.\n", 325 pmf_get_platform("bios-date")); 326 327 acpi_unmap_rsdt(rsdt); 328 goto fail; 329 } 330 331 acpi_unmap_rsdt(rsdt); 332 333 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 334 335 if (ACPI_FAILURE(rv)) { 336 aprint_error("%s: failed to enable subsystem\n", __func__); 337 goto fail; 338 } 339 340 return 1; 341 342fail: 343 (void)AcpiTerminate(); 344 345 return 0; 346} 347 348void 349acpi_disable(void) 350{ 351 352 if (acpi_softc == NULL) 353 return; 354 355 KASSERT(acpi_active != 0); 356 357 if (AcpiGbl_FADT.SmiCommand != 0) 358 AcpiDisable(); 359} 360 361int 362acpi_check(device_t parent, const char *ifattr) 363{ 364 return config_search(parent, NULL, 365 CFARGS(.submatch = acpi_submatch, 366 .iattr = ifattr)) != NULL; 367} 368 369int 370acpi_reset(void) 371{ 372 struct acpi_softc *sc = acpi_softc; 373 ACPI_GENERIC_ADDRESS *ResetReg; 374 ACPI_PCI_ID PciId; 375 ACPI_STATUS status; 376 377 if (sc == NULL) 378 return ENXIO; 379 380 ResetReg = &AcpiGbl_FADT.ResetRegister; 381 382 /* Check if the reset register is supported */ 383 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 384 !ResetReg->Address) { 385 return ENOENT; 386 } 387 388 switch (ResetReg->SpaceId) { 389 case ACPI_ADR_SPACE_PCI_CONFIG: 390 PciId.Segment = PciId.Bus = 0; 391 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 392 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 393 status = AcpiOsWritePciConfiguration(&PciId, 394 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 395 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 396 break; 397 case ACPI_ADR_SPACE_SYSTEM_IO: 398 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 399 status = AcpiReset(); 400 break; 401 default: 402 status = AE_TYPE; 403 break; 404 } 405 406 return ACPI_FAILURE(status) ? EIO : 0; 407} 408 409/* 410 * Autoconfiguration. 411 */ 412static int 413acpi_match(device_t parent, cfdata_t match, void *aux) 414{ 415 /* 416 * XXX: Nada; MD code has called acpi_probe(). 417 */ 418 return 1; 419} 420 421static int 422acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 423{ 424 struct cfattach *ca; 425 426 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 427 428 return (ca == &acpi_ca); 429} 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_TABLE_HEADER *rsdt, *hdr; 437 ACPI_STATUS rv; 438 int i; 439 440 aprint_naive("\n"); 441 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 442 443 if (acpi_softc != NULL) 444 panic("%s: already attached", __func__); 445 446 rsdt = acpi_map_rsdt(); 447 448 if (rsdt == NULL) 449 aprint_error_dev(self, "X/RSDT: Not found\n"); 450 else { 451 aprint_verbose_dev(self, 452 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 453 rsdt->OemId, rsdt->OemTableId, 454 rsdt->OemRevision, 455 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 456 } 457 458 acpi_unmap_rsdt(rsdt); 459 460 sc->sc_dev = self; 461 sc->sc_root = NULL; 462 463 sc->sc_sleepstate = ACPI_STATE_S0; 464 sc->sc_quirks = acpi_find_quirks(); 465 466 sysmon_power_settype("acpi"); 467 468 sc->sc_iot = aa->aa_iot; 469 sc->sc_memt = aa->aa_memt; 470 sc->sc_pciflags = aa->aa_pciflags; 471 sc->sc_ic = aa->aa_ic; 472 sc->sc_dmat = aa->aa_dmat; 473 sc->sc_dmat64 = aa->aa_dmat64; 474 475 SIMPLEQ_INIT(&sc->sc_head); 476 477 acpi_softc = sc; 478 479 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 480 aprint_error_dev(self, "couldn't establish power handler\n"); 481 482 /* 483 * Bring ACPICA on-line. 484 */ 485 486 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 487 488 if (ACPI_FAILURE(rv)) 489 goto fail; 490 491 /* 492 * Early initialization of acpiec(4) via ECDT. 493 */ 494 config_found(self, aa, NULL, 495 CFARGS(.iattr = "acpiecdtbus")); 496 497 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 498 499 if (ACPI_FAILURE(rv)) 500 goto fail; 501 502 /* 503 * Scan the namespace and build our device tree. 504 */ 505 acpi_build_tree(sc); 506 507#if NPCI > 0 508 /* 509 * Probe MCFG table 510 */ 511 acpimcfg_probe(sc); 512#endif 513 514 acpi_md_callback(sc); 515 516 /* 517 * Early initialization of the _PDC control method 518 * that may load additional SSDT tables dynamically. 519 */ 520 (void)acpi_md_pdc(); 521 522 /* 523 * Install global notify handlers. 524 */ 525 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 526 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 527 528 if (ACPI_FAILURE(rv)) 529 goto fail; 530 531 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 532 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 533 534 if (ACPI_FAILURE(rv)) 535 goto fail; 536 537 acpi_active = 1; 538 539 if (!AcpiGbl_ReducedHardware) { 540 /* Show SCI interrupt. */ 541 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 542 AcpiGbl_FADT.SciInterrupt); 543 544 /* 545 * Install fixed-event handlers. 546 */ 547 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 548 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 549 } 550 551 /* 552 * Load drivers that operate on System Description Tables. 553 */ 554 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i) { 555 rv = AcpiGetTableByIndex(i, &hdr); 556 if (ACPI_FAILURE(rv)) { 557 continue; 558 } 559 config_found(sc->sc_dev, hdr, NULL, 560 CFARGS(.iattr = "acpisdtbus")); 561 AcpiPutTable(hdr); 562 } 563 564 acpitimer_init(sc); 565 acpi_config_tree(sc); 566 acpi_sleep_init(sc); 567 568#ifdef ACPI_DEBUG 569 acpi_debug_init(); 570#endif 571 572 /* 573 * Print debug information. 574 */ 575 acpi_print_verbose(sc); 576 577 return; 578 579fail: 580 aprint_error("%s: failed to initialize ACPI: %s\n", 581 __func__, AcpiFormatException(rv)); 582} 583 584/* 585 * XXX: This is incomplete. 586 */ 587static int 588acpi_detach(device_t self, int flags) 589{ 590 struct acpi_softc *sc = device_private(self); 591 ACPI_STATUS rv; 592 int rc; 593 594 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 595 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 596 597 if (ACPI_FAILURE(rv)) 598 return EBUSY; 599 600 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 601 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 602 603 if (ACPI_FAILURE(rv)) 604 return EBUSY; 605 606 if ((rc = config_detach_children(self, flags)) != 0) 607 return rc; 608 609 if ((rc = acpitimer_detach()) != 0) 610 return rc; 611 612 if (!AcpiGbl_ReducedHardware) { 613 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 614 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 615 } 616 617 pmf_device_deregister(self); 618 619 acpi_softc = NULL; 620 621 return 0; 622} 623 624static void 625acpi_childdet(device_t self, device_t child) 626{ 627 struct acpi_softc *sc = device_private(self); 628 struct acpi_devnode *ad; 629 630 if (sc->sc_apmbus == child) 631 sc->sc_apmbus = NULL; 632 633 if (sc->sc_hpet == child) 634 sc->sc_hpet = NULL; 635 636 if (sc->sc_wdrt == child) 637 sc->sc_wdrt = NULL; 638 639 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 640 641 if (ad->ad_device == child) 642 ad->ad_device = NULL; 643 } 644} 645 646static bool 647acpi_suspend(device_t dv, const pmf_qual_t *qual) 648{ 649 650 acpi_suspended = 1; 651 652 return true; 653} 654 655static bool 656acpi_resume(device_t dv, const pmf_qual_t *qual) 657{ 658 659 acpi_suspended = 0; 660 661 return true; 662} 663 664/* 665 * Namespace scan. 666 */ 667static void 668acpi_build_tree(struct acpi_softc *sc) 669{ 670 struct acpi_walkcontext awc; 671 672 /* 673 * Get the root scope handles. 674 */ 675 KASSERT(__arraycount(acpi_scopes) == 4); 676 677 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 678 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 679 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 680 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 681 682 /* 683 * Make the root node. 684 */ 685 awc.aw_sc = sc; 686 awc.aw_parent = NULL; 687 688 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 689 690 KASSERT(sc->sc_root == NULL); 691 KASSERT(awc.aw_parent != NULL); 692 693 sc->sc_root = awc.aw_parent; 694 695 /* 696 * Build the internal namespace. 697 */ 698 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 699 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 700 701 /* 702 * Scan the internal namespace. 703 */ 704 (void)acpi_pcidev_scan(sc->sc_root); 705} 706 707static void 708acpi_config_tree(struct acpi_softc *sc) 709{ 710 /* 711 * Assign bus_dma resources 712 */ 713 acpi_config_dma(sc); 714 715 /* 716 * Configure all everything found "at acpi?". 717 */ 718 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 719 720 /* 721 * Update GPE information. 722 * 723 * Note that this must be called after 724 * all GPE handlers have been installed. 725 */ 726 (void)AcpiUpdateAllGpes(); 727 728 /* 729 * Defer rest of the configuration. 730 */ 731 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 732} 733 734// XXXNH? 735static void 736acpi_config_dma(struct acpi_softc *sc) 737{ 738 struct acpi_devnode *ad; 739 740 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 741 742 if (ad->ad_device != NULL) 743 continue; 744 745 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 746 continue; 747 748 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 749 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 750 } 751} 752 753static ACPI_STATUS 754acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 755 void *context, void **status) 756{ 757 struct acpi_walkcontext *awc = context; 758 struct acpi_softc *sc = awc->aw_sc; 759 struct acpi_devnode *ad; 760 ACPI_DEVICE_INFO *devinfo; 761 ACPI_OBJECT_TYPE type; 762 ACPI_STATUS rv; 763 764 rv = AcpiGetObjectInfo(handle, &devinfo); 765 766 if (ACPI_FAILURE(rv)) 767 return AE_OK; /* Do not terminate the walk. */ 768 769 type = devinfo->Type; 770 771 switch (type) { 772 773 case ACPI_TYPE_DEVICE: 774 acpi_activate_device(handle, &devinfo); 775 /* FALLTHROUGH */ 776 777 case ACPI_TYPE_PROCESSOR: 778 case ACPI_TYPE_THERMAL: 779 case ACPI_TYPE_POWER: 780 781 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 782 783 ad->ad_device = NULL; 784 ad->ad_notify = NULL; 785 ad->ad_pciinfo = NULL; 786 ad->ad_wakedev = NULL; 787 788 ad->ad_type = type; 789 ad->ad_handle = handle; 790 ad->ad_devinfo = devinfo; 791 792 ad->ad_root = sc->sc_dev; 793 ad->ad_parent = awc->aw_parent; 794 795 acpi_match_node_init(ad); 796 acpi_make_name(ad, devinfo->Name); 797 798 /* 799 * Identify wake GPEs from the _PRW. Note that 800 * AcpiUpdateAllGpes() must be called afterwards. 801 */ 802 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 803 acpi_wakedev_init(ad); 804 805 SIMPLEQ_INIT(&ad->ad_child_head); 806 SIMPLEQ_INSERT_TAIL(&sc->sc_head, ad, ad_list); 807 808 if (ad->ad_parent != NULL) { 809 810 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 811 ad, ad_child_list); 812 } 813 814 awc->aw_parent = ad; 815 break; 816 817 default: 818 ACPI_FREE(devinfo); 819 break; 820 } 821 822 return AE_OK; 823} 824 825static ACPI_STATUS 826acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 827 void *context, void **status) 828{ 829 struct acpi_walkcontext *awc = context; 830 831 KASSERT(awc != NULL); 832 KASSERT(awc->aw_parent != NULL); 833 834 if (handle == awc->aw_parent->ad_handle) 835 awc->aw_parent = awc->aw_parent->ad_parent; 836 837 return AE_OK; 838} 839 840static void 841acpi_make_name(struct acpi_devnode *ad, uint32_t name) 842{ 843 ACPI_NAME_UNION *anu; 844 int clear, i; 845 846 anu = (ACPI_NAME_UNION *)&name; 847 ad->ad_name[4] = '\0'; 848 849 for (i = 3, clear = 0; i >= 0; i--) { 850 851 if (clear == 0 && anu->Ascii[i] == '_') 852 ad->ad_name[i] = '\0'; 853 else { 854 ad->ad_name[i] = anu->Ascii[i]; 855 clear = 1; 856 } 857 } 858 859 if (ad->ad_name[0] == '\0') 860 ad->ad_name[0] = '_'; 861} 862 863bus_dma_tag_t 864acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 865{ 866 return sc->sc_dmat; 867} 868__weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 869 870bus_dma_tag_t 871acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 872{ 873 return sc->sc_dmat64; 874} 875__weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 876 877pci_chipset_tag_t 878acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 879{ 880 return NULL; 881} 882__weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 883 884/* 885 * Device attachment. 886 */ 887static int 888acpi_rescan(device_t self, const char *ifattr, const int *locators) 889{ 890 struct acpi_softc *sc = device_private(self); 891 struct acpi_attach_args aa; 892 893 /* 894 * Try to attach hpet(4) first via a specific table. 895 */ 896 aa.aa_memt = sc->sc_memt; 897 898 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) { 899 sc->sc_hpet = config_found(sc->sc_dev, &aa, NULL, 900 CFARGS(.iattr = "acpihpetbus")); 901 } 902 903 /* 904 * A two-pass scan for acpinodebus. 905 */ 906 if (ifattr_match(ifattr, "acpinodebus")) { 907 acpi_rescan_early(sc); 908 acpi_rescan_nodes(sc); 909 } 910 911 /* 912 * Attach APM emulation and acpiwdrt(4). 913 */ 914 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 915 sc->sc_apmbus = config_found(sc->sc_dev, NULL, NULL, 916 CFARGS(.iattr = "acpiapmbus")); 917 } 918 919 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) { 920 sc->sc_wdrt = config_found(sc->sc_dev, NULL, NULL, 921 CFARGS(.iattr = "acpiwdrtbus")); 922 } 923 924 return 0; 925} 926 927static void 928acpi_rescan_early(struct acpi_softc *sc) 929{ 930 struct acpi_attach_args aa; 931 struct acpi_devnode *ad; 932 933 /* 934 * First scan for devices such as acpiec(4) that 935 * should be always attached before anything else. 936 * We want these devices to attach regardless of 937 * the device status and other restrictions. 938 */ 939 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 940 941 if (ad->ad_device != NULL) 942 continue; 943 944 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 945 continue; 946 947 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 948 continue; 949 950 KASSERT(ad->ad_handle != NULL); 951 952 aa.aa_node = ad; 953 aa.aa_iot = sc->sc_iot; 954 aa.aa_memt = sc->sc_memt; 955 if (ad->ad_pciinfo != NULL) { 956 aa.aa_pc = ad->ad_pciinfo->ap_pc; 957 aa.aa_pciflags = sc->sc_pciflags; 958 } 959 aa.aa_ic = sc->sc_ic; 960 aa.aa_dmat = ad->ad_dmat; 961 aa.aa_dmat64 = ad->ad_dmat64; 962 963 ad->ad_device = config_found(sc->sc_dev, &aa, acpi_print, 964 CFARGS(.iattr = "acpinodebus", 965 .devhandle = devhandle_from_acpi(ad->ad_handle))); 966 } 967} 968 969static void 970acpi_rescan_nodes(struct acpi_softc *sc) 971{ 972 const char * const hpet_ids[] = { "PNP0103", NULL }; 973 struct acpi_attach_args aa; 974 struct acpi_devnode *ad; 975 ACPI_DEVICE_INFO *di; 976 977 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 978 979 if (ad->ad_device != NULL) 980 continue; 981 982 /* 983 * There is a bug in ACPICA: it defines the type 984 * of the scopes incorrectly for its own reasons. 985 */ 986 if (acpi_is_scope(ad) != false) 987 continue; 988 989 di = ad->ad_devinfo; 990 991 /* 992 * We only attach devices which are present, enabled, and 993 * functioning properly. However, if a device is enabled, 994 * it is decoding resources and we should claim these, 995 * if possible. This requires changes to bus_space(9). 996 */ 997 if (di->Type == ACPI_TYPE_DEVICE && 998 !acpi_device_present(ad->ad_handle)) { 999 continue; 1000 } 1001 1002 if (di->Type == ACPI_TYPE_POWER) 1003 continue; 1004 1005 if (di->Type == ACPI_TYPE_PROCESSOR) 1006 continue; 1007 1008 if (acpi_match_hid(di, acpi_early_ids) != 0) 1009 continue; 1010 1011 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 1012 continue; 1013 1014 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 1015 continue; 1016 1017 KASSERT(ad->ad_handle != NULL); 1018 1019 aa.aa_node = ad; 1020 aa.aa_iot = sc->sc_iot; 1021 aa.aa_memt = sc->sc_memt; 1022 if (ad->ad_pciinfo != NULL) { 1023 aa.aa_pc = ad->ad_pciinfo->ap_pc; 1024 aa.aa_pciflags = sc->sc_pciflags; 1025 } 1026 aa.aa_ic = sc->sc_ic; 1027 aa.aa_dmat = ad->ad_dmat; 1028 aa.aa_dmat64 = ad->ad_dmat64; 1029 1030 ad->ad_device = config_found(sc->sc_dev, &aa, acpi_print, 1031 CFARGS(.iattr = "acpinodebus", 1032 .devhandle = devhandle_from_acpi(ad->ad_handle))); 1033 } 1034} 1035 1036static void 1037acpi_rescan_capabilities(device_t self) 1038{ 1039 struct acpi_softc *sc = device_private(self); 1040 struct acpi_devnode *ad; 1041 ACPI_HANDLE tmp; 1042 ACPI_STATUS rv; 1043 1044 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 1045 1046 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1047 continue; 1048 1049 /* 1050 * Scan power resource capabilities. 1051 * 1052 * If any power states are supported, 1053 * at least _PR0 and _PR3 must be present. 1054 */ 1055 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1056 1057 if (ACPI_SUCCESS(rv)) { 1058 ad->ad_flags |= ACPI_DEVICE_POWER; 1059 acpi_power_add(ad); 1060 } 1061 1062 /* 1063 * Scan wake-up capabilities. 1064 */ 1065 if (ad->ad_wakedev != NULL) { 1066 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1067 acpi_wakedev_add(ad); 1068 } 1069 1070 /* 1071 * Scan docking stations. 1072 */ 1073 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1074 1075 if (ACPI_SUCCESS(rv)) 1076 ad->ad_flags |= ACPI_DEVICE_DOCK; 1077 1078 /* 1079 * Scan devices that are ejectable. 1080 */ 1081 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1082 1083 if (ACPI_SUCCESS(rv)) 1084 ad->ad_flags |= ACPI_DEVICE_EJECT; 1085 } 1086} 1087 1088static int 1089acpi_print(void *aux, const char *pnp) 1090{ 1091 struct acpi_attach_args *aa = aux; 1092 struct acpi_devnode *ad; 1093 const char *hid, *uid; 1094 ACPI_DEVICE_INFO *di; 1095 1096 ad = aa->aa_node; 1097 di = ad->ad_devinfo; 1098 1099 hid = di->HardwareId.String; 1100 uid = di->UniqueId.String; 1101 1102 if (pnp != NULL) { 1103 1104 if (di->Type != ACPI_TYPE_DEVICE) { 1105 1106 aprint_normal("%s (ACPI Object Type '%s') at %s", 1107 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1108 1109 return UNCONF; 1110 } 1111 1112 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1113 return 0; 1114 1115 aprint_normal("%s (%s) ", ad->ad_name, hid); 1116 acpi_print_dev(hid); 1117 aprint_normal("at %s", pnp); 1118 1119 return UNCONF; 1120 } 1121 1122 aprint_normal(" (%s", ad->ad_name); 1123 1124 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1125 1126 aprint_normal(", %s", hid); 1127 1128 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1129 1130 if (uid[0] == '\0') 1131 uid = "<null>"; 1132 1133 aprint_normal("-%s", uid); 1134 } 1135 } 1136 1137 aprint_normal(")"); 1138 1139 return UNCONF; 1140} 1141 1142/* 1143 * Notify. 1144 */ 1145static void 1146acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1147{ 1148 struct acpi_softc *sc = acpi_softc; 1149 struct acpi_devnode *ad; 1150 ACPI_NOTIFY_HANDLER notify; 1151 1152 KASSERT(sc != NULL); 1153 KASSERT(aux == NULL); 1154 KASSERT(acpi_active != 0); 1155 1156 if (acpi_suspended != 0) 1157 return; 1158 1159 /* 1160 * System: 0x00 - 0x7F. 1161 * Device: 0x80 - 0xFF. 1162 */ 1163 switch (event) { 1164 1165 case ACPI_NOTIFY_BUS_CHECK: 1166 case ACPI_NOTIFY_DEVICE_CHECK: 1167 case ACPI_NOTIFY_DEVICE_WAKE: 1168 case ACPI_NOTIFY_EJECT_REQUEST: 1169 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1170 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1171 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1172 case ACPI_NOTIFY_POWER_FAULT: 1173 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1174 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1175 case ACPI_NOTIFY_RESERVED: 1176 case ACPI_NOTIFY_LOCALITY_UPDATE: 1177 break; 1178 } 1179 1180 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1181 "%s (%p)\n", event, acpi_name(handle), handle)); 1182 1183 /* 1184 * We deliver notifications only to drivers 1185 * that have been successfully attached and 1186 * that have registered a handler with us. 1187 * The opaque pointer is always the device_t. 1188 */ 1189 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 1190 1191 if (ad->ad_device == NULL) 1192 continue; 1193 1194 if ((notify = atomic_load_acquire(&ad->ad_notify)) == NULL) 1195 continue; 1196 1197 if (ad->ad_handle != handle) 1198 continue; 1199 1200 (*notify)(ad->ad_handle, event, ad->ad_device); 1201 1202 return; 1203 } 1204 1205 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1206 "for %s (%p)\n", event, acpi_name(handle), handle); 1207} 1208 1209bool 1210acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1211{ 1212 struct acpi_softc *sc = acpi_softc; 1213 1214 KASSERT(sc != NULL); 1215 KASSERT(acpi_active != 0); 1216 1217 if (acpi_suspended != 0) 1218 goto fail; 1219 1220 if (ad == NULL || notify == NULL) 1221 goto fail; 1222 1223 atomic_store_release(&ad->ad_notify, notify); 1224 1225 return true; 1226 1227fail: 1228 aprint_error_dev(sc->sc_dev, "failed to register notify " 1229 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1230 1231 return false; 1232} 1233 1234void 1235acpi_deregister_notify(struct acpi_devnode *ad) 1236{ 1237 1238 atomic_store_relaxed(&ad->ad_notify, NULL); 1239 1240 /* Wait for any in-flight calls to the notifier to complete. */ 1241 AcpiOsWaitEventsComplete(); 1242} 1243 1244/* 1245 * Fixed buttons. 1246 */ 1247static void 1248acpi_register_fixed_button(struct acpi_softc *sc, int event) 1249{ 1250 struct sysmon_pswitch *smpsw; 1251 ACPI_STATUS rv; 1252 int type; 1253 1254 switch (event) { 1255 1256 case ACPI_EVENT_POWER_BUTTON: 1257 1258 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1259 return; 1260 1261 type = PSWITCH_TYPE_POWER; 1262 smpsw = &sc->sc_smpsw_power; 1263 break; 1264 1265 case ACPI_EVENT_SLEEP_BUTTON: 1266 1267 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1268 return; 1269 1270 type = PSWITCH_TYPE_SLEEP; 1271 smpsw = &sc->sc_smpsw_sleep; 1272 break; 1273 1274 default: 1275 rv = AE_TYPE; 1276 goto fail; 1277 } 1278 1279 smpsw->smpsw_type = type; 1280 smpsw->smpsw_name = device_xname(sc->sc_dev); 1281 1282 if (sysmon_pswitch_register(smpsw) != 0) { 1283 rv = AE_ERROR; 1284 goto fail; 1285 } 1286 1287 AcpiClearEvent(event); 1288 1289 rv = AcpiInstallFixedEventHandler(event, 1290 acpi_fixed_button_handler, smpsw); 1291 1292 if (ACPI_FAILURE(rv)) { 1293 sysmon_pswitch_unregister(smpsw); 1294 goto fail; 1295 } 1296 1297 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1298 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1299 1300 return; 1301 1302fail: 1303 aprint_error_dev(sc->sc_dev, "failed to register " 1304 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1305} 1306 1307static void 1308acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1309{ 1310 struct sysmon_pswitch *smpsw; 1311 ACPI_STATUS rv; 1312 1313 switch (event) { 1314 1315 case ACPI_EVENT_POWER_BUTTON: 1316 smpsw = &sc->sc_smpsw_power; 1317 1318 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1319 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1320 return; 1321 } 1322 1323 break; 1324 1325 case ACPI_EVENT_SLEEP_BUTTON: 1326 smpsw = &sc->sc_smpsw_sleep; 1327 1328 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1329 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1330 return; 1331 } 1332 1333 break; 1334 1335 default: 1336 rv = AE_TYPE; 1337 goto fail; 1338 } 1339 1340 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1341 1342 if (ACPI_SUCCESS(rv)) { 1343 sysmon_pswitch_unregister(smpsw); 1344 return; 1345 } 1346 1347fail: 1348 aprint_error_dev(sc->sc_dev, "failed to deregister " 1349 "fixed event: %s\n", AcpiFormatException(rv)); 1350} 1351 1352static uint32_t 1353acpi_fixed_button_handler(void *context) 1354{ 1355 static const int handler = OSL_NOTIFY_HANDLER; 1356 struct sysmon_pswitch *smpsw = context; 1357 1358 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1359 1360 return ACPI_INTERRUPT_HANDLED; 1361} 1362 1363static void 1364acpi_fixed_button_pressed(void *context) 1365{ 1366 struct sysmon_pswitch *smpsw = context; 1367 1368 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1369 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1370 "power" : "sleep")); 1371 1372 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1373} 1374 1375/* 1376 * Sleep. 1377 */ 1378static void 1379acpi_sleep_init(struct acpi_softc *sc) 1380{ 1381 uint8_t a, b, i; 1382 ACPI_STATUS rv; 1383 1384 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1385 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1386 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1387 1388 /* 1389 * Evaluate supported sleep states. 1390 */ 1391 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1392 1393 rv = AcpiGetSleepTypeData(i, &a, &b); 1394 1395 if (ACPI_SUCCESS(rv)) 1396 sc->sc_sleepstates |= __BIT(i); 1397 } 1398} 1399 1400/* 1401 * Must be called with interrupts enabled. 1402 */ 1403void 1404acpi_enter_sleep_state(int state) 1405{ 1406 struct acpi_softc *sc = acpi_softc; 1407 ACPI_STATUS rv; 1408 1409 if (acpi_softc == NULL) 1410 return; 1411 1412 if (state == sc->sc_sleepstate) 1413 return; 1414 1415 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1416 return; 1417 1418 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1419 1420 switch (state) { 1421 1422 case ACPI_STATE_S0: 1423 sc->sc_sleepstate = ACPI_STATE_S0; 1424 return; 1425 1426 case ACPI_STATE_S1: 1427 case ACPI_STATE_S2: 1428 case ACPI_STATE_S3: 1429 case ACPI_STATE_S4: 1430 1431 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1432 aprint_error_dev(sc->sc_dev, "sleep state " 1433 "S%d is not available\n", state); 1434 return; 1435 } 1436 1437 /* 1438 * Evaluate the _TTS method. This should be done before 1439 * pmf_system_suspend(9) and the evaluation of _PTS. 1440 * We should also re-evaluate this once we return to 1441 * S0 or if we abort the sleep state transition in the 1442 * middle (see ACPI 3.0, section 7.3.6). In reality, 1443 * however, the _TTS method is seldom seen in the field. 1444 */ 1445 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1446 1447 if (ACPI_SUCCESS(rv)) 1448 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1449 1450 if (state != ACPI_STATE_S1 && 1451 pmf_system_suspend(PMF_Q_NONE) != true) { 1452 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1453 break; 1454 } 1455 1456 /* 1457 * This will evaluate the _PTS and _SST methods, 1458 * but unlike the documentation claims, not _GTS, 1459 * which is evaluated in AcpiEnterSleepState(). 1460 * This must be called with interrupts enabled. 1461 */ 1462 rv = AcpiEnterSleepStatePrep(state); 1463 1464 if (ACPI_FAILURE(rv)) { 1465 aprint_error_dev(sc->sc_dev, "failed to prepare " 1466 "S%d: %s\n", state, AcpiFormatException(rv)); 1467 break; 1468 } 1469 1470 /* 1471 * After the _PTS method has been evaluated, we can 1472 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1473 */ 1474 acpi_wakedev_commit(sc, state); 1475 1476 sc->sc_sleepstate = state; 1477 1478 if (state == ACPI_STATE_S1) { 1479 1480 /* 1481 * Before the transition to S1, CPU caches 1482 * must be flushed (see ACPI 4.0, 7.3.4.2). 1483 * 1484 * Note that interrupts must be off before 1485 * calling AcpiEnterSleepState(). Conversely, 1486 * AcpiLeaveSleepState() should always be 1487 * called with interrupts enabled. 1488 */ 1489 acpi_md_OsDisableInterrupt(); 1490 1491 ACPI_FLUSH_CPU_CACHE(); 1492 rv = AcpiEnterSleepState(state); 1493 1494 if (ACPI_FAILURE(rv)) 1495 aprint_error_dev(sc->sc_dev, "failed to " 1496 "enter S1: %s\n", AcpiFormatException(rv)); 1497 1498 /* 1499 * Clear fixed events and disable all GPEs before 1500 * interrupts are enabled. 1501 */ 1502 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1503 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1504 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1505 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1506 AcpiClearEvent(ACPI_EVENT_RTC); 1507#if (!ACPI_REDUCED_HARDWARE) 1508 AcpiHwDisableAllGpes(); 1509#endif 1510 1511 acpi_md_OsEnableInterrupt(); 1512 rv = AcpiLeaveSleepState(state); 1513 1514 } else { 1515 1516 (void)acpi_md_sleep(state); 1517 1518 if (state == ACPI_STATE_S4) 1519 AcpiEnable(); 1520 1521 (void)pmf_system_bus_resume(PMF_Q_NONE); 1522 (void)AcpiLeaveSleepState(state); 1523 (void)AcpiSetFirmwareWakingVector(0, 0); 1524 (void)pmf_system_resume(PMF_Q_NONE); 1525 } 1526 1527 /* 1528 * No wake GPEs should be enabled at runtime. 1529 */ 1530 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1531 break; 1532 1533 case ACPI_STATE_S5: 1534 1535 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1536 1537 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1538 1539 if (ACPI_FAILURE(rv)) { 1540 aprint_error_dev(sc->sc_dev, "failed to prepare " 1541 "S%d: %s\n", state, AcpiFormatException(rv)); 1542 break; 1543 } 1544 1545 (void)AcpiDisableAllGpes(); 1546 1547 DELAY(1000000); 1548 1549 sc->sc_sleepstate = state; 1550 acpi_md_OsDisableInterrupt(); 1551 1552 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1553 1554 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1555 1556 break; 1557 } 1558 1559 sc->sc_sleepstate = ACPI_STATE_S0; 1560 1561 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1562} 1563 1564/* 1565 * Sysctl. 1566 */ 1567SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1568{ 1569 const struct sysctlnode *rnode, *snode; 1570 int err; 1571 1572 err = sysctl_createv(clog, 0, NULL, &rnode, 1573 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1574 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1575 NULL, 0, NULL, 0, 1576 CTL_HW, CTL_CREATE, CTL_EOL); 1577 1578 if (err != 0) 1579 return; 1580 1581 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1582 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1583 "root", SYSCTL_DESCR("ACPI root pointer"), 1584 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1585 CTL_CREATE, CTL_EOL); 1586 1587 err = sysctl_createv(clog, 0, &rnode, &snode, 1588 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1589 "sleep", SYSCTL_DESCR("ACPI sleep"), 1590 NULL, 0, NULL, 0, 1591 CTL_CREATE, CTL_EOL); 1592 1593 if (err != 0) 1594 return; 1595 1596 (void)sysctl_createv(NULL, 0, &snode, NULL, 1597 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1598 "state", SYSCTL_DESCR("System sleep state"), 1599 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1600 CTL_CREATE, CTL_EOL); 1601 1602 (void)sysctl_createv(NULL, 0, &snode, NULL, 1603 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1604 "states", SYSCTL_DESCR("Supported sleep states"), 1605 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1606 CTL_CREATE, CTL_EOL); 1607 1608 err = sysctl_createv(clog, 0, &rnode, &rnode, 1609 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1610 "stat", SYSCTL_DESCR("ACPI statistics"), 1611 NULL, 0, NULL, 0, 1612 CTL_CREATE, CTL_EOL); 1613 1614 if (err != 0) 1615 return; 1616 1617 (void)sysctl_createv(clog, 0, &rnode, NULL, 1618 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1619 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1620 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1621 CTL_CREATE, CTL_EOL); 1622 1623 (void)sysctl_createv(clog, 0, &rnode, NULL, 1624 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1625 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1626 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1627 CTL_CREATE, CTL_EOL); 1628 1629 (void)sysctl_createv(clog, 0, &rnode, NULL, 1630 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1631 "fixed", SYSCTL_DESCR("Number of fixed events"), 1632 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1633 CTL_CREATE, CTL_EOL); 1634 1635 (void)sysctl_createv(clog, 0, &rnode, NULL, 1636 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1637 "method", SYSCTL_DESCR("Number of methods executed"), 1638 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1639 CTL_CREATE, CTL_EOL); 1640 1641 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1642 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1643} 1644 1645static int 1646sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1647{ 1648 struct sysctlnode node; 1649 uint64_t t; 1650 int err, i; 1651 1652 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1653 t += AcpiFixedEventCount[i]; 1654 1655 node = *rnode; 1656 node.sysctl_data = &t; 1657 1658 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1659 1660 if (err || newp == NULL) 1661 return err; 1662 1663 return 0; 1664} 1665 1666static int 1667sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1668{ 1669 struct acpi_softc *sc = acpi_softc; 1670 struct sysctlnode node; 1671 int err, t; 1672 1673 if (acpi_softc == NULL) 1674 return ENOSYS; 1675 1676 node = *rnode; 1677 t = sc->sc_sleepstate; 1678 node.sysctl_data = &t; 1679 1680 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1681 1682 if (err || newp == NULL) 1683 return err; 1684 1685 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1686 return EINVAL; 1687 1688 acpi_enter_sleep_state(t); 1689 1690 return 0; 1691} 1692 1693static int 1694sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1695{ 1696 struct acpi_softc *sc = acpi_softc; 1697 struct sysctlnode node; 1698 char t[3 * 6 + 1]; 1699 int err; 1700 1701 if (acpi_softc == NULL) 1702 return ENOSYS; 1703 1704 (void)memset(t, '\0', sizeof(t)); 1705 1706 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1707 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1708 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1709 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1710 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1711 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1712 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1713 1714 node = *rnode; 1715 node.sysctl_data = &t; 1716 1717 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1718 1719 if (err || newp == NULL) 1720 return err; 1721 1722 return 0; 1723} 1724 1725/* 1726 * Tables. 1727 */ 1728ACPI_PHYSICAL_ADDRESS 1729acpi_OsGetRootPointer(void) 1730{ 1731 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1732 1733 /* 1734 * We let MD code handle this since there are multiple ways to do it: 1735 * 1736 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1737 * 1738 * IA-64: Use the EFI. 1739 */ 1740 PhysicalAddress = acpi_md_OsGetRootPointer(); 1741 1742 if (acpi_root_pointer == 0) 1743 acpi_root_pointer = PhysicalAddress; 1744 1745 return PhysicalAddress; 1746} 1747 1748static ACPI_TABLE_HEADER * 1749acpi_map_rsdt(void) 1750{ 1751 ACPI_PHYSICAL_ADDRESS paddr; 1752 ACPI_TABLE_RSDP *rsdp; 1753 1754 paddr = AcpiOsGetRootPointer(); 1755 1756 if (paddr == 0) 1757 return NULL; 1758 1759 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1760 1761 if (rsdp == NULL) 1762 return NULL; 1763 1764 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1765 paddr = rsdp->XsdtPhysicalAddress; 1766 else 1767 paddr = rsdp->RsdtPhysicalAddress; 1768 1769 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1770 1771 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1772} 1773 1774/* 1775 * XXX: Refactor to be a generic function that unmaps tables. 1776 */ 1777static void 1778acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1779{ 1780 1781 if (rsdt == NULL) 1782 return; 1783 1784 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1785} 1786 1787/* 1788 * XXX: Refactor to be a generic function that maps tables. 1789 */ 1790ACPI_STATUS 1791acpi_madt_map(void) 1792{ 1793 ACPI_STATUS rv; 1794 1795 if (madt_header != NULL) 1796 return AE_ALREADY_EXISTS; 1797 1798 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1799 1800 if (ACPI_FAILURE(rv)) 1801 return rv; 1802 1803 return AE_OK; 1804} 1805 1806void 1807acpi_madt_unmap(void) 1808{ 1809 madt_header = NULL; 1810} 1811 1812ACPI_STATUS 1813acpi_gtdt_map(void) 1814{ 1815 ACPI_STATUS rv; 1816 1817 if (gtdt_header != NULL) 1818 return AE_ALREADY_EXISTS; 1819 1820 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1821 1822 if (ACPI_FAILURE(rv)) 1823 return rv; 1824 1825 return AE_OK; 1826} 1827 1828void 1829acpi_gtdt_unmap(void) 1830{ 1831 gtdt_header = NULL; 1832} 1833 1834/* 1835 * XXX: Refactor to be a generic function that walks tables. 1836 */ 1837void 1838acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1839{ 1840 ACPI_SUBTABLE_HEADER *hdrp; 1841 char *madtend, *where; 1842 1843 madtend = (char *)madt_header + madt_header->Length; 1844 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1845 1846 while (where < madtend) { 1847 1848 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1849 1850 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1851 break; 1852 1853 where += hdrp->Length; 1854 } 1855} 1856 1857void 1858acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1859{ 1860 ACPI_GTDT_HEADER *hdrp; 1861 char *gtdtend, *where; 1862 1863 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1864 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1865 1866 while (where < gtdtend) { 1867 1868 hdrp = (ACPI_GTDT_HEADER *)where; 1869 1870 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1871 break; 1872 1873 where += hdrp->Length; 1874 } 1875} 1876 1877/* 1878 * Miscellaneous. 1879 */ 1880static bool 1881acpi_is_scope(struct acpi_devnode *ad) 1882{ 1883 int i; 1884 1885 /* 1886 * Return true if the node is a root scope. 1887 */ 1888 if (ad->ad_parent == NULL) 1889 return false; 1890 1891 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1892 return false; 1893 1894 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1895 1896 if (acpi_scopes[i] == NULL) 1897 continue; 1898 1899 if (ad->ad_handle == acpi_scopes[i]) 1900 return true; 1901 } 1902 1903 return false; 1904} 1905 1906bool 1907acpi_device_present(ACPI_HANDLE handle) 1908{ 1909 ACPI_STATUS rv; 1910 ACPI_INTEGER sta; 1911 1912 rv = acpi_eval_integer(handle, "_STA", &sta); 1913 1914 if (ACPI_FAILURE(rv)) { 1915 /* No _STA method -> must be there */ 1916 return rv == AE_NOT_FOUND; 1917 } 1918 1919 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1920} 1921 1922/* 1923 * ACPIVERBOSE. 1924 */ 1925void 1926acpi_load_verbose(void) 1927{ 1928 1929 if (acpi_verbose_loaded == 0) 1930 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1931} 1932 1933void 1934acpi_print_verbose_stub(struct acpi_softc *sc) 1935{ 1936 1937 acpi_load_verbose(); 1938 1939 if (acpi_verbose_loaded != 0) 1940 acpi_print_verbose(sc); 1941} 1942 1943void 1944acpi_print_dev_stub(const char *pnpstr) 1945{ 1946 1947 acpi_load_verbose(); 1948 1949 if (acpi_verbose_loaded != 0) 1950 acpi_print_dev(pnpstr); 1951} 1952 1953MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1954 1955/* 1956 * ACPI_ACTIVATE_DEV. 1957 */ 1958static void 1959acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1960{ 1961 1962#ifndef ACPI_ACTIVATE_DEV 1963 return; 1964} 1965#else 1966 static const int valid = ACPI_VALID_HID; 1967 ACPI_DEVICE_INFO *newdi; 1968 ACPI_STATUS rv; 1969 1970 1971 /* 1972 * If the device is valid and present, 1973 * but not enabled, try to activate it. 1974 */ 1975 if (((*di)->Valid & valid) != valid) 1976 return; 1977 1978 if (!acpi_device_present(handle)) 1979 return; 1980 1981 rv = acpi_allocate_resources(handle); 1982 1983 if (ACPI_FAILURE(rv)) 1984 goto fail; 1985 1986 rv = AcpiGetObjectInfo(handle, &newdi); 1987 1988 if (ACPI_FAILURE(rv)) 1989 goto fail; 1990 1991 ACPI_FREE(*di); 1992 *di = newdi; 1993 1994 aprint_verbose_dev(acpi_softc->sc_dev, 1995 "%s activated\n", (*di)->HardwareId.String); 1996 1997 return; 1998 1999fail: 2000 aprint_error_dev(acpi_softc->sc_dev, "failed to " 2001 "activate %s\n", (*di)->HardwareId.String); 2002} 2003 2004/* 2005 * XXX: This very incomplete. 2006 */ 2007ACPI_STATUS 2008acpi_allocate_resources(ACPI_HANDLE handle) 2009{ 2010 ACPI_BUFFER bufp, bufc, bufn; 2011 ACPI_RESOURCE *resp, *resc, *resn; 2012 ACPI_RESOURCE_IRQ *irq; 2013#if 0 2014 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 2015#endif 2016 ACPI_STATUS rv; 2017 uint delta; 2018 2019 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 2020 if (ACPI_FAILURE(rv)) 2021 goto out; 2022 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 2023 if (ACPI_FAILURE(rv)) { 2024 goto out1; 2025 } 2026 2027 bufn.Length = 1000; 2028 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 2029 resp = bufp.Pointer; 2030 resc = bufc.Pointer; 2031 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 2032 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2033 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 2034 resp = ACPI_NEXT_RESOURCE(resp); 2035 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 2036 break; 2037 /* Found identical Id */ 2038 resn->Type = resc->Type; 2039 switch (resc->Type) { 2040 case ACPI_RESOURCE_TYPE_IRQ: 2041 memcpy(&resn->Data, &resp->Data, 2042 sizeof(ACPI_RESOURCE_IRQ)); 2043 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2044 irq->Interrupts[0] = 2045 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2046 Interrupts[irq->InterruptCount-1]; 2047 irq->InterruptCount = 1; 2048 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2049 break; 2050 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2051 memcpy(&resn->Data, &resp->Data, 2052 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2053#if 0 2054 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2055 /* 2056 * XXX: Not duplicating the interrupt logic above 2057 * because its not clear what it accomplishes. 2058 */ 2059 xirq->Interrupts[0] = 2060 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2061 Interrupts[irq->NumberOfInterrupts-1]; 2062 xirq->NumberOfInterrupts = 1; 2063#endif 2064 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2065 break; 2066 case ACPI_RESOURCE_TYPE_IO: 2067 memcpy(&resn->Data, &resp->Data, 2068 sizeof(ACPI_RESOURCE_IO)); 2069 resn->Length = resp->Length; 2070 break; 2071 default: 2072 aprint_error_dev(acpi_softc->sc_dev, 2073 "%s: invalid type %u\n", __func__, resc->Type); 2074 rv = AE_BAD_DATA; 2075 goto out2; 2076 } 2077 resc = ACPI_NEXT_RESOURCE(resc); 2078 resn = ACPI_NEXT_RESOURCE(resn); 2079 resp = ACPI_NEXT_RESOURCE(resp); 2080 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2081 if (delta >= 2082 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2083 bufn.Length *= 2; 2084 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2085 M_ACPI, M_WAITOK); 2086 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2087 delta); 2088 } 2089 } 2090 2091 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2092 aprint_error_dev(acpi_softc->sc_dev, 2093 "%s: resc not exhausted\n", __func__); 2094 rv = AE_BAD_DATA; 2095 goto out3; 2096 } 2097 2098 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2099 rv = AcpiSetCurrentResources(handle, &bufn); 2100 2101 if (ACPI_FAILURE(rv)) 2102 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2103 "resources: %s\n", __func__, AcpiFormatException(rv)); 2104 2105out3: 2106 free(bufn.Pointer, M_ACPI); 2107out2: 2108 ACPI_FREE(bufc.Pointer); 2109out1: 2110 ACPI_FREE(bufp.Pointer); 2111out: 2112 return rv; 2113} 2114 2115#endif /* ACPI_ACTIVATE_DEV */ 2116