acpi.c revision 1.288
1/* $NetBSD: acpi.c,v 1.288 2020/12/13 20:24:26 jmcneill 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 1.288 2020/12/13 20:24:26 jmcneill 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/device.h> 111#include <sys/kernel.h> 112#include <sys/kmem.h> 113#include <sys/malloc.h> 114#include <sys/module.h> 115#include <sys/mutex.h> 116#include <sys/sysctl.h> 117#include <sys/systm.h> 118#include <sys/timetc.h> 119 120#include <dev/acpi/acpireg.h> 121#include <dev/acpi/acpivar.h> 122#include <dev/acpi/acpi_mcfg.h> 123#include <dev/acpi/acpi_osd.h> 124#include <dev/acpi/acpi_pci.h> 125#include <dev/acpi/acpi_power.h> 126#include <dev/acpi/acpi_timer.h> 127#include <dev/acpi/acpi_wakedev.h> 128 129#include <machine/acpi_machdep.h> 130 131#include "ioconf.h" 132 133#define _COMPONENT ACPI_BUS_COMPONENT 134ACPI_MODULE_NAME ("acpi") 135 136/* 137 * The acpi_active variable is set when the ACPI subsystem is active. 138 * Machine-dependent code may wish to skip other steps (such as attaching 139 * subsystems that ACPI supercedes) when ACPI is active. 140 */ 141int acpi_active = 0; 142int acpi_suspended = 0; 143int acpi_force_load = 0; 144int acpi_verbose_loaded = 0; 145 146struct acpi_softc *acpi_softc = NULL; 147static uint64_t acpi_root_pointer; 148extern kmutex_t acpi_interrupt_list_mtx; 149static ACPI_HANDLE acpi_scopes[4]; 150ACPI_TABLE_HEADER *madt_header; 151ACPI_TABLE_HEADER *gtdt_header; 152 153/* 154 * This structure provides a context for the ACPI 155 * namespace walk performed in acpi_build_tree(). 156 */ 157struct acpi_walkcontext { 158 struct acpi_softc *aw_sc; 159 struct acpi_devnode *aw_parent; 160}; 161 162/* 163 * Ignored HIDs. 164 */ 165static const char * const acpi_ignored_ids[] = { 166#if defined(i386) || defined(x86_64) 167 "ACPI0007", /* ACPI CPUs do not attach to acpi(4) */ 168 "PNP0000", /* AT interrupt controller is handled internally */ 169 "PNP0001", /* EISA interrupt controller is handled internally */ 170 "PNP0200", /* AT DMA controller is handled internally */ 171 "PNP0A??", /* PCI Busses are handled internally */ 172 "PNP0B00", /* AT RTC is handled internally */ 173 "PNP0C02", /* PnP motherboard resources */ 174 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 175#endif 176#if defined(x86_64) 177 "PNP0C04", /* FPU is handled internally */ 178#endif 179#if defined(__aarch64__) 180 "ACPI0004", /* ACPI module devices are handled internally */ 181 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 182#endif 183 NULL 184}; 185 186/* 187 * Devices that should be attached early. 188 */ 189static const char * const acpi_early_ids[] = { 190 "PNP0C09", /* acpiec(4) */ 191 NULL 192}; 193 194static int acpi_match(device_t, cfdata_t, void *); 195static int acpi_submatch(device_t, cfdata_t, const int *, void *); 196static void acpi_attach(device_t, device_t, void *); 197static int acpi_detach(device_t, int); 198static void acpi_childdet(device_t, device_t); 199static bool acpi_suspend(device_t, const pmf_qual_t *); 200static bool acpi_resume(device_t, const pmf_qual_t *); 201 202static void acpi_build_tree(struct acpi_softc *); 203static void acpi_config_tree(struct acpi_softc *); 204static void acpi_config_dma(struct acpi_softc *); 205static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 206 void *, void **); 207static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 208 void *, void **); 209static void acpi_make_name(struct acpi_devnode *, uint32_t); 210 211static int acpi_rescan(device_t, const char *, const int *); 212static void acpi_rescan_early(struct acpi_softc *); 213static void acpi_rescan_nodes(struct acpi_softc *); 214static void acpi_rescan_capabilities(device_t); 215static int acpi_print(void *aux, const char *); 216 217static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 218 219static void acpi_register_fixed_button(struct acpi_softc *, int); 220static void acpi_deregister_fixed_button(struct acpi_softc *, int); 221static uint32_t acpi_fixed_button_handler(void *); 222static void acpi_fixed_button_pressed(void *); 223 224static void acpi_sleep_init(struct acpi_softc *); 225 226static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 227static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 228static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 229 230static bool acpi_is_scope(struct acpi_devnode *); 231static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 232static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 233 234void acpi_print_verbose_stub(struct acpi_softc *); 235void acpi_print_dev_stub(const char *); 236 237static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 238ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 239 240void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 241void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 242 243bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 244bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 245pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 246 247CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 248 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 249 250/* 251 * Probe for ACPI support. 252 * 253 * This is called by the machine-dependent ACPI front-end. 254 * Note: this is not an autoconfiguration interface function. 255 */ 256int 257acpi_probe(void) 258{ 259 ACPI_TABLE_HEADER *rsdt; 260 ACPI_STATUS rv; 261 int quirks; 262 263 if (acpi_softc != NULL) 264 panic("%s: already probed", __func__); 265 266 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 267 268 /* 269 * Start up ACPICA. 270 */ 271 AcpiGbl_EnableInterpreterSlack = true; 272 273 rv = AcpiInitializeSubsystem(); 274 275 if (ACPI_FAILURE(rv)) { 276 aprint_error("%s: failed to initialize subsystem\n", __func__); 277 return 0; 278 } 279 280 /* 281 * Allocate space for RSDT/XSDT and DSDT, 282 * but allow resizing if more tables exist. 283 */ 284 rv = AcpiInitializeTables(NULL, 2, true); 285 286 if (ACPI_FAILURE(rv)) { 287 aprint_error("%s: failed to initialize tables\n", __func__); 288 goto fail; 289 } 290 291 rv = AcpiLoadTables(); 292 293 if (ACPI_FAILURE(rv)) { 294 aprint_error("%s: failed to load tables\n", __func__); 295 goto fail; 296 } 297 298 rsdt = acpi_map_rsdt(); 299 300 if (rsdt == NULL) { 301 aprint_error("%s: failed to map RSDT\n", __func__); 302 goto fail; 303 } 304 305 quirks = acpi_find_quirks(); 306 307 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { 308 309 aprint_normal("ACPI: BIOS is listed as broken:\n"); 310 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 311 "AslId <%4.4s,%08x>\n", rsdt->OemId, rsdt->OemTableId, 312 rsdt->OemRevision, rsdt->AslCompilerId, 313 rsdt->AslCompilerRevision); 314 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 315 316 acpi_unmap_rsdt(rsdt); 317 goto fail; 318 } 319 320 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { 321 322 aprint_normal("ACPI: BIOS is too old (%s). " 323 "Set acpi_force_load to use.\n", 324 pmf_get_platform("bios-date")); 325 326 acpi_unmap_rsdt(rsdt); 327 goto fail; 328 } 329 330 acpi_unmap_rsdt(rsdt); 331 332 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 333 334 if (ACPI_FAILURE(rv)) { 335 aprint_error("%s: failed to enable subsystem\n", __func__); 336 goto fail; 337 } 338 339 return 1; 340 341fail: 342 (void)AcpiTerminate(); 343 344 return 0; 345} 346 347void 348acpi_disable(void) 349{ 350 351 if (acpi_softc == NULL) 352 return; 353 354 KASSERT(acpi_active != 0); 355 356 if (AcpiGbl_FADT.SmiCommand != 0) 357 AcpiDisable(); 358} 359 360int 361acpi_check(device_t parent, const char *ifattr) 362{ 363 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 364} 365 366int 367acpi_reset(void) 368{ 369 struct acpi_softc *sc = acpi_softc; 370 ACPI_GENERIC_ADDRESS *ResetReg; 371 ACPI_PCI_ID PciId; 372 ACPI_STATUS status; 373 374 if (sc == NULL) 375 return ENXIO; 376 377 ResetReg = &AcpiGbl_FADT.ResetRegister; 378 379 /* Check if the reset register is supported */ 380 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 381 !ResetReg->Address) { 382 return ENOENT; 383 } 384 385 switch (ResetReg->SpaceId) { 386 case ACPI_ADR_SPACE_PCI_CONFIG: 387 PciId.Segment = PciId.Bus = 0; 388 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 389 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 390 status = AcpiOsWritePciConfiguration(&PciId, 391 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 392 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 393 break; 394 case ACPI_ADR_SPACE_SYSTEM_IO: 395 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 396 status = AcpiReset(); 397 break; 398 default: 399 status = AE_TYPE; 400 break; 401 } 402 403 return ACPI_FAILURE(status) ? EIO : 0; 404} 405 406/* 407 * Autoconfiguration. 408 */ 409static int 410acpi_match(device_t parent, cfdata_t match, void *aux) 411{ 412 /* 413 * XXX: Nada; MD code has called acpi_probe(). 414 */ 415 return 1; 416} 417 418static int 419acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 420{ 421 struct cfattach *ca; 422 423 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 424 425 return (ca == &acpi_ca); 426} 427 428static void 429acpi_attach(device_t parent, device_t self, void *aux) 430{ 431 struct acpi_softc *sc = device_private(self); 432 struct acpibus_attach_args *aa = aux; 433 ACPI_TABLE_HEADER *rsdt, *hdr; 434 ACPI_STATUS rv; 435 int i; 436 437 aprint_naive("\n"); 438 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 439 440 if (acpi_softc != NULL) 441 panic("%s: already attached", __func__); 442 443 rsdt = acpi_map_rsdt(); 444 445 if (rsdt == NULL) 446 aprint_error_dev(self, "X/RSDT: Not found\n"); 447 else { 448 aprint_verbose_dev(self, 449 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 450 rsdt->OemId, rsdt->OemTableId, 451 rsdt->OemRevision, 452 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 453 } 454 455 acpi_unmap_rsdt(rsdt); 456 457 sc->sc_dev = self; 458 sc->sc_root = NULL; 459 460 sc->sc_sleepstate = ACPI_STATE_S0; 461 sc->sc_quirks = acpi_find_quirks(); 462 463 sysmon_power_settype("acpi"); 464 465 sc->sc_iot = aa->aa_iot; 466 sc->sc_memt = aa->aa_memt; 467 sc->sc_pciflags = aa->aa_pciflags; 468 sc->sc_ic = aa->aa_ic; 469 sc->sc_dmat = aa->aa_dmat; 470 sc->sc_dmat64 = aa->aa_dmat64; 471 472 SIMPLEQ_INIT(&sc->ad_head); 473 474 acpi_softc = sc; 475 476 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 477 aprint_error_dev(self, "couldn't establish power handler\n"); 478 479 /* 480 * Bring ACPICA on-line. 481 */ 482 483 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 484 485 if (ACPI_FAILURE(rv)) 486 goto fail; 487 488 /* 489 * Early initialization of acpiec(4) via ECDT. 490 */ 491 (void)config_found_ia(self, "acpiecdtbus", aa, NULL); 492 493 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 494 495 if (ACPI_FAILURE(rv)) 496 goto fail; 497 498 /* 499 * Scan the namespace and build our device tree. 500 */ 501 acpi_build_tree(sc); 502 503#if NPCI > 0 504 /* 505 * Probe MCFG table 506 */ 507 acpimcfg_probe(sc); 508#endif 509 510 acpi_md_callback(sc); 511 512 /* 513 * Early initialization of the _PDC control method 514 * that may load additional SSDT tables dynamically. 515 */ 516 (void)acpi_md_pdc(); 517 518 /* 519 * Install global notify handlers. 520 */ 521 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 522 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 523 524 if (ACPI_FAILURE(rv)) 525 goto fail; 526 527 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 528 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 529 530 if (ACPI_FAILURE(rv)) 531 goto fail; 532 533 acpi_active = 1; 534 535 if (!AcpiGbl_ReducedHardware) { 536 /* Show SCI interrupt. */ 537 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 538 AcpiGbl_FADT.SciInterrupt); 539 540 /* 541 * Install fixed-event handlers. 542 */ 543 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 544 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 545 } 546 547 /* 548 * Load drivers that operate on System Description Tables. 549 */ 550 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i) { 551 rv = AcpiGetTableByIndex(i, &hdr); 552 if (ACPI_FAILURE(rv)) { 553 continue; 554 } 555 config_found_ia(sc->sc_dev, "acpisdtbus", hdr, NULL); 556 AcpiPutTable(hdr); 557 } 558 559 acpitimer_init(sc); 560 acpi_config_tree(sc); 561 acpi_sleep_init(sc); 562 563#ifdef ACPI_DEBUG 564 acpi_debug_init(); 565#endif 566 567 /* 568 * Print debug information. 569 */ 570 acpi_print_verbose(sc); 571 572 return; 573 574fail: 575 aprint_error("%s: failed to initialize ACPI: %s\n", 576 __func__, AcpiFormatException(rv)); 577} 578 579/* 580 * XXX: This is incomplete. 581 */ 582static int 583acpi_detach(device_t self, int flags) 584{ 585 struct acpi_softc *sc = device_private(self); 586 ACPI_STATUS rv; 587 int rc; 588 589 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 590 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 591 592 if (ACPI_FAILURE(rv)) 593 return EBUSY; 594 595 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 596 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 597 598 if (ACPI_FAILURE(rv)) 599 return EBUSY; 600 601 if ((rc = config_detach_children(self, flags)) != 0) 602 return rc; 603 604 if ((rc = acpitimer_detach()) != 0) 605 return rc; 606 607 if (!AcpiGbl_ReducedHardware) { 608 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 609 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 610 } 611 612 pmf_device_deregister(self); 613 614 acpi_softc = NULL; 615 616 return 0; 617} 618 619static void 620acpi_childdet(device_t self, device_t child) 621{ 622 struct acpi_softc *sc = device_private(self); 623 struct acpi_devnode *ad; 624 625 if (sc->sc_apmbus == child) 626 sc->sc_apmbus = NULL; 627 628 if (sc->sc_hpet == child) 629 sc->sc_hpet = NULL; 630 631 if (sc->sc_wdrt == child) 632 sc->sc_wdrt = NULL; 633 634 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 635 636 if (ad->ad_device == child) 637 ad->ad_device = NULL; 638 } 639} 640 641static bool 642acpi_suspend(device_t dv, const pmf_qual_t *qual) 643{ 644 645 acpi_suspended = 1; 646 647 return true; 648} 649 650static bool 651acpi_resume(device_t dv, const pmf_qual_t *qual) 652{ 653 654 acpi_suspended = 0; 655 656 return true; 657} 658 659/* 660 * Namespace scan. 661 */ 662static void 663acpi_build_tree(struct acpi_softc *sc) 664{ 665 struct acpi_walkcontext awc; 666 667 /* 668 * Get the root scope handles. 669 */ 670 KASSERT(__arraycount(acpi_scopes) == 4); 671 672 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 673 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 674 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 675 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 676 677 /* 678 * Make the root node. 679 */ 680 awc.aw_sc = sc; 681 awc.aw_parent = NULL; 682 683 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 684 685 KASSERT(sc->sc_root == NULL); 686 KASSERT(awc.aw_parent != NULL); 687 688 sc->sc_root = awc.aw_parent; 689 690 /* 691 * Build the internal namespace. 692 */ 693 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 694 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 695 696 /* 697 * Scan the internal namespace. 698 */ 699 (void)acpi_pcidev_scan(sc->sc_root); 700} 701 702static void 703acpi_config_tree(struct acpi_softc *sc) 704{ 705 /* 706 * Assign bus_dma resources 707 */ 708 acpi_config_dma(sc); 709 710 /* 711 * Configure all everything found "at acpi?". 712 */ 713 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 714 715 /* 716 * Update GPE information. 717 * 718 * Note that this must be called after 719 * all GPE handlers have been installed. 720 */ 721 (void)AcpiUpdateAllGpes(); 722 723 /* 724 * Defer rest of the configuration. 725 */ 726 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 727} 728 729static void 730acpi_config_dma(struct acpi_softc *sc) 731{ 732 struct acpi_devnode *ad; 733 734 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 735 736 if (ad->ad_device != NULL) 737 continue; 738 739 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 740 continue; 741 742 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 743 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 744 } 745} 746 747static ACPI_STATUS 748acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 749 void *context, void **status) 750{ 751 struct acpi_walkcontext *awc = context; 752 struct acpi_softc *sc = awc->aw_sc; 753 struct acpi_devnode *ad; 754 ACPI_DEVICE_INFO *devinfo; 755 ACPI_OBJECT_TYPE type; 756 ACPI_STATUS rv; 757 758 rv = AcpiGetObjectInfo(handle, &devinfo); 759 760 if (ACPI_FAILURE(rv)) 761 return AE_OK; /* Do not terminate the walk. */ 762 763 type = devinfo->Type; 764 765 switch (type) { 766 767 case ACPI_TYPE_DEVICE: 768 acpi_activate_device(handle, &devinfo); 769 /* FALLTHROUGH */ 770 771 case ACPI_TYPE_PROCESSOR: 772 case ACPI_TYPE_THERMAL: 773 case ACPI_TYPE_POWER: 774 775 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 776 777 ad->ad_device = NULL; 778 ad->ad_notify = NULL; 779 ad->ad_pciinfo = NULL; 780 ad->ad_wakedev = NULL; 781 782 ad->ad_type = type; 783 ad->ad_handle = handle; 784 ad->ad_devinfo = devinfo; 785 786 ad->ad_root = sc->sc_dev; 787 ad->ad_parent = awc->aw_parent; 788 789 acpi_match_node_init(ad); 790 acpi_make_name(ad, devinfo->Name); 791 792 /* 793 * Identify wake GPEs from the _PRW. Note that 794 * AcpiUpdateAllGpes() must be called afterwards. 795 */ 796 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 797 acpi_wakedev_init(ad); 798 799 SIMPLEQ_INIT(&ad->ad_child_head); 800 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 801 802 if (ad->ad_parent != NULL) { 803 804 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 805 ad, ad_child_list); 806 } 807 808 awc->aw_parent = ad; 809 break; 810 811 default: 812 ACPI_FREE(devinfo); 813 break; 814 } 815 816 return AE_OK; 817} 818 819static ACPI_STATUS 820acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 821 void *context, void **status) 822{ 823 struct acpi_walkcontext *awc = context; 824 825 KASSERT(awc != NULL); 826 KASSERT(awc->aw_parent != NULL); 827 828 if (handle == awc->aw_parent->ad_handle) 829 awc->aw_parent = awc->aw_parent->ad_parent; 830 831 return AE_OK; 832} 833 834static void 835acpi_make_name(struct acpi_devnode *ad, uint32_t name) 836{ 837 ACPI_NAME_UNION *anu; 838 int clear, i; 839 840 anu = (ACPI_NAME_UNION *)&name; 841 ad->ad_name[4] = '\0'; 842 843 for (i = 3, clear = 0; i >= 0; i--) { 844 845 if (clear == 0 && anu->Ascii[i] == '_') 846 ad->ad_name[i] = '\0'; 847 else { 848 ad->ad_name[i] = anu->Ascii[i]; 849 clear = 1; 850 } 851 } 852 853 if (ad->ad_name[0] == '\0') 854 ad->ad_name[0] = '_'; 855} 856 857bus_dma_tag_t 858acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 859{ 860 return sc->sc_dmat; 861} 862__weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 863 864bus_dma_tag_t 865acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 866{ 867 return sc->sc_dmat64; 868} 869__weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 870 871pci_chipset_tag_t 872acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 873{ 874 return NULL; 875} 876__weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 877 878/* 879 * Device attachment. 880 */ 881static int 882acpi_rescan(device_t self, const char *ifattr, const int *locators) 883{ 884 struct acpi_softc *sc = device_private(self); 885 struct acpi_attach_args aa; 886 887 /* 888 * Try to attach hpet(4) first via a specific table. 889 */ 890 aa.aa_memt = sc->sc_memt; 891 892 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) 893 sc->sc_hpet = config_found_ia(sc->sc_dev, 894 "acpihpetbus", &aa, NULL); 895 896 /* 897 * A two-pass scan for acpinodebus. 898 */ 899 if (ifattr_match(ifattr, "acpinodebus")) { 900 acpi_rescan_early(sc); 901 acpi_rescan_nodes(sc); 902 } 903 904 /* 905 * Attach APM emulation and acpiwdrt(4). 906 */ 907 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 908 sc->sc_apmbus = config_found_ia(sc->sc_dev, 909 "acpiapmbus", NULL, NULL); 910 911 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) 912 sc->sc_wdrt = config_found_ia(sc->sc_dev, 913 "acpiwdrtbus", NULL, NULL); 914 915 return 0; 916} 917 918static void 919acpi_rescan_early(struct acpi_softc *sc) 920{ 921 struct acpi_attach_args aa; 922 struct acpi_devnode *ad; 923 924 /* 925 * First scan for devices such as acpiec(4) that 926 * should be always attached before anything else. 927 * We want these devices to attach regardless of 928 * the device status and other restrictions. 929 */ 930 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 931 932 if (ad->ad_device != NULL) 933 continue; 934 935 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 936 continue; 937 938 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 939 continue; 940 941 aa.aa_node = ad; 942 aa.aa_iot = sc->sc_iot; 943 aa.aa_memt = sc->sc_memt; 944 if (ad->ad_pciinfo != NULL) { 945 aa.aa_pc = ad->ad_pciinfo->ap_pc; 946 aa.aa_pciflags = sc->sc_pciflags; 947 } 948 aa.aa_ic = sc->sc_ic; 949 aa.aa_dmat = ad->ad_dmat; 950 aa.aa_dmat64 = ad->ad_dmat64; 951 952 ad->ad_device = config_found_ia(sc->sc_dev, 953 "acpinodebus", &aa, acpi_print); 954 } 955} 956 957static void 958acpi_rescan_nodes(struct acpi_softc *sc) 959{ 960 const char * const hpet_ids[] = { "PNP0103", NULL }; 961 struct acpi_attach_args aa; 962 struct acpi_devnode *ad; 963 ACPI_DEVICE_INFO *di; 964 965 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 966 967 if (ad->ad_device != NULL) 968 continue; 969 970 /* 971 * There is a bug in ACPICA: it defines the type 972 * of the scopes incorrectly for its own reasons. 973 */ 974 if (acpi_is_scope(ad) != false) 975 continue; 976 977 di = ad->ad_devinfo; 978 979 /* 980 * We only attach devices which are present, enabled, and 981 * functioning properly. However, if a device is enabled, 982 * it is decoding resources and we should claim these, 983 * if possible. This requires changes to bus_space(9). 984 */ 985 if (di->Type == ACPI_TYPE_DEVICE && 986 !acpi_device_present(ad->ad_handle)) { 987 continue; 988 } 989 990 if (di->Type == ACPI_TYPE_POWER) 991 continue; 992 993 if (di->Type == ACPI_TYPE_PROCESSOR) 994 continue; 995 996 if (acpi_match_hid(di, acpi_early_ids) != 0) 997 continue; 998 999 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 1000 continue; 1001 1002 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 1003 continue; 1004 1005 aa.aa_node = ad; 1006 aa.aa_iot = sc->sc_iot; 1007 aa.aa_memt = sc->sc_memt; 1008 if (ad->ad_pciinfo != NULL) { 1009 aa.aa_pc = ad->ad_pciinfo->ap_pc; 1010 aa.aa_pciflags = sc->sc_pciflags; 1011 } 1012 aa.aa_ic = sc->sc_ic; 1013 aa.aa_dmat = ad->ad_dmat; 1014 aa.aa_dmat64 = ad->ad_dmat64; 1015 1016 ad->ad_device = config_found_ia(sc->sc_dev, 1017 "acpinodebus", &aa, acpi_print); 1018 } 1019} 1020 1021static void 1022acpi_rescan_capabilities(device_t self) 1023{ 1024 struct acpi_softc *sc = device_private(self); 1025 struct acpi_devnode *ad; 1026 ACPI_HANDLE tmp; 1027 ACPI_STATUS rv; 1028 1029 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1030 1031 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1032 continue; 1033 1034 /* 1035 * Scan power resource capabilities. 1036 * 1037 * If any power states are supported, 1038 * at least _PR0 and _PR3 must be present. 1039 */ 1040 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1041 1042 if (ACPI_SUCCESS(rv)) { 1043 ad->ad_flags |= ACPI_DEVICE_POWER; 1044 acpi_power_add(ad); 1045 } 1046 1047 /* 1048 * Scan wake-up capabilities. 1049 */ 1050 if (ad->ad_wakedev != NULL) { 1051 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1052 acpi_wakedev_add(ad); 1053 } 1054 1055 /* 1056 * Scan docking stations. 1057 */ 1058 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1059 1060 if (ACPI_SUCCESS(rv)) 1061 ad->ad_flags |= ACPI_DEVICE_DOCK; 1062 1063 /* 1064 * Scan devices that are ejectable. 1065 */ 1066 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1067 1068 if (ACPI_SUCCESS(rv)) 1069 ad->ad_flags |= ACPI_DEVICE_EJECT; 1070 } 1071} 1072 1073static int 1074acpi_print(void *aux, const char *pnp) 1075{ 1076 struct acpi_attach_args *aa = aux; 1077 struct acpi_devnode *ad; 1078 const char *hid, *uid; 1079 ACPI_DEVICE_INFO *di; 1080 1081 ad = aa->aa_node; 1082 di = ad->ad_devinfo; 1083 1084 hid = di->HardwareId.String; 1085 uid = di->UniqueId.String; 1086 1087 if (pnp != NULL) { 1088 1089 if (di->Type != ACPI_TYPE_DEVICE) { 1090 1091 aprint_normal("%s (ACPI Object Type '%s') at %s", 1092 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1093 1094 return UNCONF; 1095 } 1096 1097 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1098 return 0; 1099 1100 aprint_normal("%s (%s) ", ad->ad_name, hid); 1101 acpi_print_dev(hid); 1102 aprint_normal("at %s", pnp); 1103 1104 return UNCONF; 1105 } 1106 1107 aprint_normal(" (%s", ad->ad_name); 1108 1109 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1110 1111 aprint_normal(", %s", hid); 1112 1113 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1114 1115 if (uid[0] == '\0') 1116 uid = "<null>"; 1117 1118 aprint_normal("-%s", uid); 1119 } 1120 } 1121 1122 aprint_normal(")"); 1123 1124 return UNCONF; 1125} 1126 1127/* 1128 * Notify. 1129 */ 1130static void 1131acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1132{ 1133 struct acpi_softc *sc = acpi_softc; 1134 struct acpi_devnode *ad; 1135 1136 KASSERT(sc != NULL); 1137 KASSERT(aux == NULL); 1138 KASSERT(acpi_active != 0); 1139 1140 if (acpi_suspended != 0) 1141 return; 1142 1143 /* 1144 * System: 0x00 - 0x7F. 1145 * Device: 0x80 - 0xFF. 1146 */ 1147 switch (event) { 1148 1149 case ACPI_NOTIFY_BUS_CHECK: 1150 case ACPI_NOTIFY_DEVICE_CHECK: 1151 case ACPI_NOTIFY_DEVICE_WAKE: 1152 case ACPI_NOTIFY_EJECT_REQUEST: 1153 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1154 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1155 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1156 case ACPI_NOTIFY_POWER_FAULT: 1157 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1158 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1159 case ACPI_NOTIFY_RESERVED: 1160 case ACPI_NOTIFY_LOCALITY_UPDATE: 1161 break; 1162 } 1163 1164 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1165 "%s (%p)\n", event, acpi_name(handle), handle)); 1166 1167 /* 1168 * We deliver notifications only to drivers 1169 * that have been successfully attached and 1170 * that have registered a handler with us. 1171 * The opaque pointer is always the device_t. 1172 */ 1173 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1174 1175 if (ad->ad_device == NULL) 1176 continue; 1177 1178 if (ad->ad_notify == NULL) 1179 continue; 1180 1181 if (ad->ad_handle != handle) 1182 continue; 1183 1184 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1185 1186 return; 1187 } 1188 1189 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1190 "for %s (%p)\n", event, acpi_name(handle), handle); 1191} 1192 1193bool 1194acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1195{ 1196 struct acpi_softc *sc = acpi_softc; 1197 1198 KASSERT(sc != NULL); 1199 KASSERT(acpi_active != 0); 1200 1201 if (acpi_suspended != 0) 1202 goto fail; 1203 1204 if (ad == NULL || notify == NULL) 1205 goto fail; 1206 1207 ad->ad_notify = notify; 1208 1209 return true; 1210 1211fail: 1212 aprint_error_dev(sc->sc_dev, "failed to register notify " 1213 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1214 1215 return false; 1216} 1217 1218void 1219acpi_deregister_notify(struct acpi_devnode *ad) 1220{ 1221 1222 ad->ad_notify = NULL; 1223} 1224 1225/* 1226 * Fixed buttons. 1227 */ 1228static void 1229acpi_register_fixed_button(struct acpi_softc *sc, int event) 1230{ 1231 struct sysmon_pswitch *smpsw; 1232 ACPI_STATUS rv; 1233 int type; 1234 1235 switch (event) { 1236 1237 case ACPI_EVENT_POWER_BUTTON: 1238 1239 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1240 return; 1241 1242 type = PSWITCH_TYPE_POWER; 1243 smpsw = &sc->sc_smpsw_power; 1244 break; 1245 1246 case ACPI_EVENT_SLEEP_BUTTON: 1247 1248 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1249 return; 1250 1251 type = PSWITCH_TYPE_SLEEP; 1252 smpsw = &sc->sc_smpsw_sleep; 1253 break; 1254 1255 default: 1256 rv = AE_TYPE; 1257 goto fail; 1258 } 1259 1260 smpsw->smpsw_type = type; 1261 smpsw->smpsw_name = device_xname(sc->sc_dev); 1262 1263 if (sysmon_pswitch_register(smpsw) != 0) { 1264 rv = AE_ERROR; 1265 goto fail; 1266 } 1267 1268 AcpiClearEvent(event); 1269 1270 rv = AcpiInstallFixedEventHandler(event, 1271 acpi_fixed_button_handler, smpsw); 1272 1273 if (ACPI_FAILURE(rv)) { 1274 sysmon_pswitch_unregister(smpsw); 1275 goto fail; 1276 } 1277 1278 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1279 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1280 1281 return; 1282 1283fail: 1284 aprint_error_dev(sc->sc_dev, "failed to register " 1285 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1286} 1287 1288static void 1289acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1290{ 1291 struct sysmon_pswitch *smpsw; 1292 ACPI_STATUS rv; 1293 1294 switch (event) { 1295 1296 case ACPI_EVENT_POWER_BUTTON: 1297 smpsw = &sc->sc_smpsw_power; 1298 1299 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1300 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1301 return; 1302 } 1303 1304 break; 1305 1306 case ACPI_EVENT_SLEEP_BUTTON: 1307 smpsw = &sc->sc_smpsw_sleep; 1308 1309 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1310 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1311 return; 1312 } 1313 1314 break; 1315 1316 default: 1317 rv = AE_TYPE; 1318 goto fail; 1319 } 1320 1321 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1322 1323 if (ACPI_SUCCESS(rv)) { 1324 sysmon_pswitch_unregister(smpsw); 1325 return; 1326 } 1327 1328fail: 1329 aprint_error_dev(sc->sc_dev, "failed to deregister " 1330 "fixed event: %s\n", AcpiFormatException(rv)); 1331} 1332 1333static uint32_t 1334acpi_fixed_button_handler(void *context) 1335{ 1336 static const int handler = OSL_NOTIFY_HANDLER; 1337 struct sysmon_pswitch *smpsw = context; 1338 1339 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1340 1341 return ACPI_INTERRUPT_HANDLED; 1342} 1343 1344static void 1345acpi_fixed_button_pressed(void *context) 1346{ 1347 struct sysmon_pswitch *smpsw = context; 1348 1349 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1350 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1351 "power" : "sleep")); 1352 1353 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1354} 1355 1356/* 1357 * Sleep. 1358 */ 1359static void 1360acpi_sleep_init(struct acpi_softc *sc) 1361{ 1362 uint8_t a, b, i; 1363 ACPI_STATUS rv; 1364 1365 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1366 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1367 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1368 1369 /* 1370 * Evaluate supported sleep states. 1371 */ 1372 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1373 1374 rv = AcpiGetSleepTypeData(i, &a, &b); 1375 1376 if (ACPI_SUCCESS(rv)) 1377 sc->sc_sleepstates |= __BIT(i); 1378 } 1379} 1380 1381/* 1382 * Must be called with interrupts enabled. 1383 */ 1384void 1385acpi_enter_sleep_state(int state) 1386{ 1387 struct acpi_softc *sc = acpi_softc; 1388 ACPI_STATUS rv; 1389 1390 if (acpi_softc == NULL) 1391 return; 1392 1393 if (state == sc->sc_sleepstate) 1394 return; 1395 1396 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1397 return; 1398 1399 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1400 1401 switch (state) { 1402 1403 case ACPI_STATE_S0: 1404 sc->sc_sleepstate = ACPI_STATE_S0; 1405 return; 1406 1407 case ACPI_STATE_S1: 1408 case ACPI_STATE_S2: 1409 case ACPI_STATE_S3: 1410 case ACPI_STATE_S4: 1411 1412 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1413 aprint_error_dev(sc->sc_dev, "sleep state " 1414 "S%d is not available\n", state); 1415 return; 1416 } 1417 1418 /* 1419 * Evaluate the _TTS method. This should be done before 1420 * pmf_system_suspend(9) and the evaluation of _PTS. 1421 * We should also re-evaluate this once we return to 1422 * S0 or if we abort the sleep state transition in the 1423 * middle (see ACPI 3.0, section 7.3.6). In reality, 1424 * however, the _TTS method is seldom seen in the field. 1425 */ 1426 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1427 1428 if (ACPI_SUCCESS(rv)) 1429 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1430 1431 if (state != ACPI_STATE_S1 && 1432 pmf_system_suspend(PMF_Q_NONE) != true) { 1433 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1434 break; 1435 } 1436 1437 /* 1438 * This will evaluate the _PTS and _SST methods, 1439 * but unlike the documentation claims, not _GTS, 1440 * which is evaluated in AcpiEnterSleepState(). 1441 * This must be called with interrupts enabled. 1442 */ 1443 rv = AcpiEnterSleepStatePrep(state); 1444 1445 if (ACPI_FAILURE(rv)) { 1446 aprint_error_dev(sc->sc_dev, "failed to prepare " 1447 "S%d: %s\n", state, AcpiFormatException(rv)); 1448 break; 1449 } 1450 1451 /* 1452 * After the _PTS method has been evaluated, we can 1453 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1454 */ 1455 acpi_wakedev_commit(sc, state); 1456 1457 sc->sc_sleepstate = state; 1458 1459 if (state == ACPI_STATE_S1) { 1460 1461 /* 1462 * Before the transition to S1, CPU caches 1463 * must be flushed (see ACPI 4.0, 7.3.4.2). 1464 * 1465 * Note that interrupts must be off before 1466 * calling AcpiEnterSleepState(). Conversely, 1467 * AcpiLeaveSleepState() should always be 1468 * called with interrupts enabled. 1469 */ 1470 acpi_md_OsDisableInterrupt(); 1471 1472 ACPI_FLUSH_CPU_CACHE(); 1473 rv = AcpiEnterSleepState(state); 1474 1475 if (ACPI_FAILURE(rv)) 1476 aprint_error_dev(sc->sc_dev, "failed to " 1477 "enter S1: %s\n", AcpiFormatException(rv)); 1478 1479 /* 1480 * Clear fixed events and disable all GPEs before 1481 * interrupts are enabled. 1482 */ 1483 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1484 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1485 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1486 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1487 AcpiClearEvent(ACPI_EVENT_RTC); 1488#if (!ACPI_REDUCED_HARDWARE) 1489 AcpiHwDisableAllGpes(); 1490#endif 1491 1492 acpi_md_OsEnableInterrupt(); 1493 rv = AcpiLeaveSleepState(state); 1494 1495 } else { 1496 1497 (void)acpi_md_sleep(state); 1498 1499 if (state == ACPI_STATE_S4) 1500 AcpiEnable(); 1501 1502 (void)pmf_system_bus_resume(PMF_Q_NONE); 1503 (void)AcpiLeaveSleepState(state); 1504 (void)AcpiSetFirmwareWakingVector(0, 0); 1505 (void)pmf_system_resume(PMF_Q_NONE); 1506 } 1507 1508 /* 1509 * No wake GPEs should be enabled at runtime. 1510 */ 1511 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1512 break; 1513 1514 case ACPI_STATE_S5: 1515 1516 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1517 1518 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1519 1520 if (ACPI_FAILURE(rv)) { 1521 aprint_error_dev(sc->sc_dev, "failed to prepare " 1522 "S%d: %s\n", state, AcpiFormatException(rv)); 1523 break; 1524 } 1525 1526 (void)AcpiDisableAllGpes(); 1527 1528 DELAY(1000000); 1529 1530 sc->sc_sleepstate = state; 1531 acpi_md_OsDisableInterrupt(); 1532 1533 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1534 1535 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1536 1537 break; 1538 } 1539 1540 sc->sc_sleepstate = ACPI_STATE_S0; 1541 1542 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1543} 1544 1545/* 1546 * Sysctl. 1547 */ 1548SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1549{ 1550 const struct sysctlnode *rnode, *snode; 1551 int err; 1552 1553 err = sysctl_createv(clog, 0, NULL, &rnode, 1554 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1555 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1556 NULL, 0, NULL, 0, 1557 CTL_HW, CTL_CREATE, CTL_EOL); 1558 1559 if (err != 0) 1560 return; 1561 1562 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1563 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1564 "root", SYSCTL_DESCR("ACPI root pointer"), 1565 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1566 CTL_CREATE, CTL_EOL); 1567 1568 err = sysctl_createv(clog, 0, &rnode, &snode, 1569 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1570 "sleep", SYSCTL_DESCR("ACPI sleep"), 1571 NULL, 0, NULL, 0, 1572 CTL_CREATE, CTL_EOL); 1573 1574 if (err != 0) 1575 return; 1576 1577 (void)sysctl_createv(NULL, 0, &snode, NULL, 1578 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1579 "state", SYSCTL_DESCR("System sleep state"), 1580 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1581 CTL_CREATE, CTL_EOL); 1582 1583 (void)sysctl_createv(NULL, 0, &snode, NULL, 1584 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1585 "states", SYSCTL_DESCR("Supported sleep states"), 1586 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1587 CTL_CREATE, CTL_EOL); 1588 1589 err = sysctl_createv(clog, 0, &rnode, &rnode, 1590 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1591 "stat", SYSCTL_DESCR("ACPI statistics"), 1592 NULL, 0, NULL, 0, 1593 CTL_CREATE, CTL_EOL); 1594 1595 if (err != 0) 1596 return; 1597 1598 (void)sysctl_createv(clog, 0, &rnode, NULL, 1599 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1600 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1601 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1602 CTL_CREATE, CTL_EOL); 1603 1604 (void)sysctl_createv(clog, 0, &rnode, NULL, 1605 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1606 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1607 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1608 CTL_CREATE, CTL_EOL); 1609 1610 (void)sysctl_createv(clog, 0, &rnode, NULL, 1611 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1612 "fixed", SYSCTL_DESCR("Number of fixed events"), 1613 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1614 CTL_CREATE, CTL_EOL); 1615 1616 (void)sysctl_createv(clog, 0, &rnode, NULL, 1617 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1618 "method", SYSCTL_DESCR("Number of methods executed"), 1619 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1620 CTL_CREATE, CTL_EOL); 1621 1622 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1623 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1624} 1625 1626static int 1627sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1628{ 1629 struct sysctlnode node; 1630 uint64_t t; 1631 int err, i; 1632 1633 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1634 t += AcpiFixedEventCount[i]; 1635 1636 node = *rnode; 1637 node.sysctl_data = &t; 1638 1639 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1640 1641 if (err || newp == NULL) 1642 return err; 1643 1644 return 0; 1645} 1646 1647static int 1648sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1649{ 1650 struct acpi_softc *sc = acpi_softc; 1651 struct sysctlnode node; 1652 int err, t; 1653 1654 if (acpi_softc == NULL) 1655 return ENOSYS; 1656 1657 node = *rnode; 1658 t = sc->sc_sleepstate; 1659 node.sysctl_data = &t; 1660 1661 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1662 1663 if (err || newp == NULL) 1664 return err; 1665 1666 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1667 return EINVAL; 1668 1669 acpi_enter_sleep_state(t); 1670 1671 return 0; 1672} 1673 1674static int 1675sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1676{ 1677 struct acpi_softc *sc = acpi_softc; 1678 struct sysctlnode node; 1679 char t[3 * 6 + 1]; 1680 int err; 1681 1682 if (acpi_softc == NULL) 1683 return ENOSYS; 1684 1685 (void)memset(t, '\0', sizeof(t)); 1686 1687 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1688 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1689 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1690 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1691 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1692 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1693 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1694 1695 node = *rnode; 1696 node.sysctl_data = &t; 1697 1698 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1699 1700 if (err || newp == NULL) 1701 return err; 1702 1703 return 0; 1704} 1705 1706/* 1707 * Tables. 1708 */ 1709ACPI_PHYSICAL_ADDRESS 1710acpi_OsGetRootPointer(void) 1711{ 1712 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1713 1714 /* 1715 * We let MD code handle this since there are multiple ways to do it: 1716 * 1717 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1718 * 1719 * IA-64: Use the EFI. 1720 */ 1721 PhysicalAddress = acpi_md_OsGetRootPointer(); 1722 1723 if (acpi_root_pointer == 0) 1724 acpi_root_pointer = PhysicalAddress; 1725 1726 return PhysicalAddress; 1727} 1728 1729static ACPI_TABLE_HEADER * 1730acpi_map_rsdt(void) 1731{ 1732 ACPI_PHYSICAL_ADDRESS paddr; 1733 ACPI_TABLE_RSDP *rsdp; 1734 1735 paddr = AcpiOsGetRootPointer(); 1736 1737 if (paddr == 0) 1738 return NULL; 1739 1740 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1741 1742 if (rsdp == NULL) 1743 return NULL; 1744 1745 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1746 paddr = rsdp->XsdtPhysicalAddress; 1747 else 1748 paddr = rsdp->RsdtPhysicalAddress; 1749 1750 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1751 1752 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1753} 1754 1755/* 1756 * XXX: Refactor to be a generic function that unmaps tables. 1757 */ 1758static void 1759acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1760{ 1761 1762 if (rsdt == NULL) 1763 return; 1764 1765 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1766} 1767 1768/* 1769 * XXX: Refactor to be a generic function that maps tables. 1770 */ 1771ACPI_STATUS 1772acpi_madt_map(void) 1773{ 1774 ACPI_STATUS rv; 1775 1776 if (madt_header != NULL) 1777 return AE_ALREADY_EXISTS; 1778 1779 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1780 1781 if (ACPI_FAILURE(rv)) 1782 return rv; 1783 1784 return AE_OK; 1785} 1786 1787void 1788acpi_madt_unmap(void) 1789{ 1790 madt_header = NULL; 1791} 1792 1793ACPI_STATUS 1794acpi_gtdt_map(void) 1795{ 1796 ACPI_STATUS rv; 1797 1798 if (gtdt_header != NULL) 1799 return AE_ALREADY_EXISTS; 1800 1801 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1802 1803 if (ACPI_FAILURE(rv)) 1804 return rv; 1805 1806 return AE_OK; 1807} 1808 1809void 1810acpi_gtdt_unmap(void) 1811{ 1812 gtdt_header = NULL; 1813} 1814 1815/* 1816 * XXX: Refactor to be a generic function that walks tables. 1817 */ 1818void 1819acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1820{ 1821 ACPI_SUBTABLE_HEADER *hdrp; 1822 char *madtend, *where; 1823 1824 madtend = (char *)madt_header + madt_header->Length; 1825 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1826 1827 while (where < madtend) { 1828 1829 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1830 1831 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1832 break; 1833 1834 where += hdrp->Length; 1835 } 1836} 1837 1838void 1839acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1840{ 1841 ACPI_GTDT_HEADER *hdrp; 1842 char *gtdtend, *where; 1843 1844 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1845 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1846 1847 while (where < gtdtend) { 1848 1849 hdrp = (ACPI_GTDT_HEADER *)where; 1850 1851 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1852 break; 1853 1854 where += hdrp->Length; 1855 } 1856} 1857 1858/* 1859 * Miscellaneous. 1860 */ 1861static bool 1862acpi_is_scope(struct acpi_devnode *ad) 1863{ 1864 int i; 1865 1866 /* 1867 * Return true if the node is a root scope. 1868 */ 1869 if (ad->ad_parent == NULL) 1870 return false; 1871 1872 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1873 return false; 1874 1875 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1876 1877 if (acpi_scopes[i] == NULL) 1878 continue; 1879 1880 if (ad->ad_handle == acpi_scopes[i]) 1881 return true; 1882 } 1883 1884 return false; 1885} 1886 1887bool 1888acpi_device_present(ACPI_HANDLE handle) 1889{ 1890 ACPI_STATUS rv; 1891 ACPI_INTEGER sta; 1892 1893 rv = acpi_eval_integer(handle, "_STA", &sta); 1894 1895 if (ACPI_FAILURE(rv)) { 1896 /* No _STA method -> must be there */ 1897 return rv == AE_NOT_FOUND; 1898 } 1899 1900 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1901} 1902 1903/* 1904 * ACPIVERBOSE. 1905 */ 1906void 1907acpi_load_verbose(void) 1908{ 1909 1910 if (acpi_verbose_loaded == 0) 1911 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1912} 1913 1914void 1915acpi_print_verbose_stub(struct acpi_softc *sc) 1916{ 1917 1918 acpi_load_verbose(); 1919 1920 if (acpi_verbose_loaded != 0) 1921 acpi_print_verbose(sc); 1922} 1923 1924void 1925acpi_print_dev_stub(const char *pnpstr) 1926{ 1927 1928 acpi_load_verbose(); 1929 1930 if (acpi_verbose_loaded != 0) 1931 acpi_print_dev(pnpstr); 1932} 1933 1934MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1935 1936/* 1937 * ACPI_ACTIVATE_DEV. 1938 */ 1939static void 1940acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1941{ 1942 1943#ifndef ACPI_ACTIVATE_DEV 1944 return; 1945} 1946#else 1947 static const int valid = ACPI_VALID_HID; 1948 ACPI_DEVICE_INFO *newdi; 1949 ACPI_STATUS rv; 1950 1951 1952 /* 1953 * If the device is valid and present, 1954 * but not enabled, try to activate it. 1955 */ 1956 if (((*di)->Valid & valid) != valid) 1957 return; 1958 1959 if (!acpi_device_present(handle)) 1960 return; 1961 1962 rv = acpi_allocate_resources(handle); 1963 1964 if (ACPI_FAILURE(rv)) 1965 goto fail; 1966 1967 rv = AcpiGetObjectInfo(handle, &newdi); 1968 1969 if (ACPI_FAILURE(rv)) 1970 goto fail; 1971 1972 ACPI_FREE(*di); 1973 *di = newdi; 1974 1975 aprint_verbose_dev(acpi_softc->sc_dev, 1976 "%s activated\n", (*di)->HardwareId.String); 1977 1978 return; 1979 1980fail: 1981 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1982 "activate %s\n", (*di)->HardwareId.String); 1983} 1984 1985/* 1986 * XXX: This very incomplete. 1987 */ 1988ACPI_STATUS 1989acpi_allocate_resources(ACPI_HANDLE handle) 1990{ 1991 ACPI_BUFFER bufp, bufc, bufn; 1992 ACPI_RESOURCE *resp, *resc, *resn; 1993 ACPI_RESOURCE_IRQ *irq; 1994#if 0 1995 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1996#endif 1997 ACPI_STATUS rv; 1998 uint delta; 1999 2000 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 2001 if (ACPI_FAILURE(rv)) 2002 goto out; 2003 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 2004 if (ACPI_FAILURE(rv)) { 2005 goto out1; 2006 } 2007 2008 bufn.Length = 1000; 2009 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 2010 resp = bufp.Pointer; 2011 resc = bufc.Pointer; 2012 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 2013 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2014 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 2015 resp = ACPI_NEXT_RESOURCE(resp); 2016 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 2017 break; 2018 /* Found identical Id */ 2019 resn->Type = resc->Type; 2020 switch (resc->Type) { 2021 case ACPI_RESOURCE_TYPE_IRQ: 2022 memcpy(&resn->Data, &resp->Data, 2023 sizeof(ACPI_RESOURCE_IRQ)); 2024 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2025 irq->Interrupts[0] = 2026 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2027 Interrupts[irq->InterruptCount-1]; 2028 irq->InterruptCount = 1; 2029 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2030 break; 2031 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2032 memcpy(&resn->Data, &resp->Data, 2033 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2034#if 0 2035 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2036 /* 2037 * XXX: Not duplicating the interrupt logic above 2038 * because its not clear what it accomplishes. 2039 */ 2040 xirq->Interrupts[0] = 2041 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2042 Interrupts[irq->NumberOfInterrupts-1]; 2043 xirq->NumberOfInterrupts = 1; 2044#endif 2045 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2046 break; 2047 case ACPI_RESOURCE_TYPE_IO: 2048 memcpy(&resn->Data, &resp->Data, 2049 sizeof(ACPI_RESOURCE_IO)); 2050 resn->Length = resp->Length; 2051 break; 2052 default: 2053 aprint_error_dev(acpi_softc->sc_dev, 2054 "%s: invalid type %u\n", __func__, resc->Type); 2055 rv = AE_BAD_DATA; 2056 goto out2; 2057 } 2058 resc = ACPI_NEXT_RESOURCE(resc); 2059 resn = ACPI_NEXT_RESOURCE(resn); 2060 resp = ACPI_NEXT_RESOURCE(resp); 2061 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2062 if (delta >= 2063 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2064 bufn.Length *= 2; 2065 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2066 M_ACPI, M_WAITOK); 2067 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2068 delta); 2069 } 2070 } 2071 2072 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2073 aprint_error_dev(acpi_softc->sc_dev, 2074 "%s: resc not exhausted\n", __func__); 2075 rv = AE_BAD_DATA; 2076 goto out3; 2077 } 2078 2079 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2080 rv = AcpiSetCurrentResources(handle, &bufn); 2081 2082 if (ACPI_FAILURE(rv)) 2083 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2084 "resources: %s\n", __func__, AcpiFormatException(rv)); 2085 2086out3: 2087 free(bufn.Pointer, M_ACPI); 2088out2: 2089 ACPI_FREE(bufc.Pointer); 2090out1: 2091 ACPI_FREE(bufp.Pointer); 2092out: 2093 return rv; 2094} 2095 2096#endif /* ACPI_ACTIVATE_DEV */ 2097