1 /* $NetBSD: acpi.c,v 1.285 2020/06/22 16:14:18 maxv 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 1.285 2020/06/22 16:14:18 maxv 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 134 ACPI_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 */ 141 int acpi_active = 0; 142 int acpi_suspended = 0; 143 int acpi_force_load = 0; 144 int acpi_verbose_loaded = 0; 145 146 struct acpi_softc *acpi_softc = NULL; 147 static uint64_t acpi_root_pointer; 148 extern kmutex_t acpi_interrupt_list_mtx; 149 static ACPI_HANDLE acpi_scopes[4]; 150 ACPI_TABLE_HEADER *madt_header; 151 ACPI_TABLE_HEADER *gtdt_header; 152 153 /* 154 * This structure provides a context for the ACPI 155 * namespace walk performed in acpi_build_tree(). 156 */ 157 struct acpi_walkcontext { 158 struct acpi_softc *aw_sc; 159 struct acpi_devnode *aw_parent; 160 }; 161 162 /* 163 * Ignored HIDs. 164 */ 165 static 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 "PNP0200", /* AT DMA controller is handled internally */ 170 "PNP0A??", /* PCI Busses are handled internally */ 171 "PNP0B00", /* AT RTC is handled internally */ 172 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 173 #endif 174 #if defined(x86_64) 175 "PNP0C04", /* FPU is handled internally */ 176 #endif 177 #if defined(__aarch64__) 178 "ACPI0004", /* ACPI module devices are handled internally */ 179 "ACPI0007", /* ACPI CPUs are attached via MADT GICC subtables */ 180 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 181 #endif 182 NULL 183 }; 184 185 /* 186 * Devices that should be attached early. 187 */ 188 static const char * const acpi_early_ids[] = { 189 "PNP0C09", /* acpiec(4) */ 190 NULL 191 }; 192 193 static int acpi_match(device_t, cfdata_t, void *); 194 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 195 static void acpi_attach(device_t, device_t, void *); 196 static int acpi_detach(device_t, int); 197 static void acpi_childdet(device_t, device_t); 198 static bool acpi_suspend(device_t, const pmf_qual_t *); 199 static bool acpi_resume(device_t, const pmf_qual_t *); 200 201 static void acpi_build_tree(struct acpi_softc *); 202 static void acpi_config_tree(struct acpi_softc *); 203 static void acpi_config_dma(struct acpi_softc *); 204 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 205 void *, void **); 206 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 207 void *, void **); 208 static void acpi_make_name(struct acpi_devnode *, uint32_t); 209 210 static int acpi_rescan(device_t, const char *, const int *); 211 static void acpi_rescan_early(struct acpi_softc *); 212 static void acpi_rescan_nodes(struct acpi_softc *); 213 static void acpi_rescan_capabilities(device_t); 214 static int acpi_print(void *aux, const char *); 215 216 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 217 218 static void acpi_register_fixed_button(struct acpi_softc *, int); 219 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 220 static uint32_t acpi_fixed_button_handler(void *); 221 static void acpi_fixed_button_pressed(void *); 222 223 static void acpi_sleep_init(struct acpi_softc *); 224 225 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 226 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 227 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 228 229 static bool acpi_is_scope(struct acpi_devnode *); 230 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 231 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 232 233 void acpi_print_verbose_stub(struct acpi_softc *); 234 void acpi_print_dev_stub(const char *); 235 236 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 237 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 238 239 void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 240 void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 241 242 bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 243 bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 244 pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 245 246 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 247 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 248 249 /* 250 * Probe for ACPI support. 251 * 252 * This is called by the machine-dependent ACPI front-end. 253 * Note: this is not an autoconfiguration interface function. 254 */ 255 int 256 acpi_probe(void) 257 { 258 ACPI_TABLE_HEADER *rsdt; 259 ACPI_STATUS rv; 260 int quirks; 261 262 if (acpi_softc != NULL) 263 panic("%s: already probed", __func__); 264 265 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 266 267 /* 268 * Start up ACPICA. 269 */ 270 AcpiGbl_EnableInterpreterSlack = true; 271 272 rv = AcpiInitializeSubsystem(); 273 274 if (ACPI_FAILURE(rv)) { 275 aprint_error("%s: failed to initialize subsystem\n", __func__); 276 return 0; 277 } 278 279 /* 280 * Allocate space for RSDT/XSDT and DSDT, 281 * but allow resizing if more tables exist. 282 */ 283 rv = AcpiInitializeTables(NULL, 2, true); 284 285 if (ACPI_FAILURE(rv)) { 286 aprint_error("%s: failed to initialize tables\n", __func__); 287 goto fail; 288 } 289 290 rv = AcpiLoadTables(); 291 292 if (ACPI_FAILURE(rv)) { 293 aprint_error("%s: failed to load tables\n", __func__); 294 goto fail; 295 } 296 297 rsdt = acpi_map_rsdt(); 298 299 if (rsdt == NULL) { 300 aprint_error("%s: failed to map RSDT\n", __func__); 301 goto fail; 302 } 303 304 quirks = acpi_find_quirks(); 305 306 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { 307 308 aprint_normal("ACPI: BIOS is listed as broken:\n"); 309 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 310 "AslId <%4.4s,%08x>\n", rsdt->OemId, rsdt->OemTableId, 311 rsdt->OemRevision, rsdt->AslCompilerId, 312 rsdt->AslCompilerRevision); 313 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 314 315 acpi_unmap_rsdt(rsdt); 316 goto fail; 317 } 318 319 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { 320 321 aprint_normal("ACPI: BIOS is too old (%s). " 322 "Set acpi_force_load to use.\n", 323 pmf_get_platform("bios-date")); 324 325 acpi_unmap_rsdt(rsdt); 326 goto fail; 327 } 328 329 acpi_unmap_rsdt(rsdt); 330 331 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 332 333 if (ACPI_FAILURE(rv)) { 334 aprint_error("%s: failed to enable subsystem\n", __func__); 335 goto fail; 336 } 337 338 return 1; 339 340 fail: 341 (void)AcpiTerminate(); 342 343 return 0; 344 } 345 346 void 347 acpi_disable(void) 348 { 349 350 if (acpi_softc == NULL) 351 return; 352 353 KASSERT(acpi_active != 0); 354 355 if (AcpiGbl_FADT.SmiCommand != 0) 356 AcpiDisable(); 357 } 358 359 int 360 acpi_check(device_t parent, const char *ifattr) 361 { 362 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 363 } 364 365 int 366 acpi_reset(void) 367 { 368 struct acpi_softc *sc = acpi_softc; 369 ACPI_GENERIC_ADDRESS *ResetReg; 370 ACPI_PCI_ID PciId; 371 ACPI_STATUS status; 372 373 if (sc == NULL) 374 return ENXIO; 375 376 ResetReg = &AcpiGbl_FADT.ResetRegister; 377 378 /* Check if the reset register is supported */ 379 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 380 !ResetReg->Address) { 381 return ENOENT; 382 } 383 384 switch (ResetReg->SpaceId) { 385 case ACPI_ADR_SPACE_PCI_CONFIG: 386 PciId.Segment = PciId.Bus = 0; 387 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 388 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 389 status = AcpiOsWritePciConfiguration(&PciId, 390 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 391 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 392 break; 393 case ACPI_ADR_SPACE_SYSTEM_IO: 394 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 395 status = AcpiReset(); 396 break; 397 default: 398 status = AE_TYPE; 399 break; 400 } 401 402 return ACPI_FAILURE(status) ? EIO : 0; 403 } 404 405 /* 406 * Autoconfiguration. 407 */ 408 static int 409 acpi_match(device_t parent, cfdata_t match, void *aux) 410 { 411 /* 412 * XXX: Nada; MD code has called acpi_probe(). 413 */ 414 return 1; 415 } 416 417 static int 418 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 419 { 420 struct cfattach *ca; 421 422 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 423 424 return (ca == &acpi_ca); 425 } 426 427 static void 428 acpi_attach(device_t parent, device_t self, void *aux) 429 { 430 struct acpi_softc *sc = device_private(self); 431 struct acpibus_attach_args *aa = aux; 432 ACPI_TABLE_HEADER *rsdt; 433 ACPI_STATUS rv; 434 435 aprint_naive("\n"); 436 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 437 438 if (acpi_softc != NULL) 439 panic("%s: already attached", __func__); 440 441 rsdt = acpi_map_rsdt(); 442 443 if (rsdt == NULL) 444 aprint_error_dev(self, "X/RSDT: Not found\n"); 445 else { 446 aprint_verbose_dev(self, 447 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 448 rsdt->OemId, rsdt->OemTableId, 449 rsdt->OemRevision, 450 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 451 } 452 453 acpi_unmap_rsdt(rsdt); 454 455 sc->sc_dev = self; 456 sc->sc_root = NULL; 457 458 sc->sc_sleepstate = ACPI_STATE_S0; 459 sc->sc_quirks = acpi_find_quirks(); 460 461 sysmon_power_settype("acpi"); 462 463 sc->sc_iot = aa->aa_iot; 464 sc->sc_memt = aa->aa_memt; 465 sc->sc_pciflags = aa->aa_pciflags; 466 sc->sc_ic = aa->aa_ic; 467 sc->sc_dmat = aa->aa_dmat; 468 sc->sc_dmat64 = aa->aa_dmat64; 469 470 SIMPLEQ_INIT(&sc->ad_head); 471 472 acpi_softc = sc; 473 474 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 475 aprint_error_dev(self, "couldn't establish power handler\n"); 476 477 /* 478 * Bring ACPICA on-line. 479 */ 480 481 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 482 483 if (ACPI_FAILURE(rv)) 484 goto fail; 485 486 /* 487 * Early initialization of acpiec(4) via ECDT. 488 */ 489 (void)config_found_ia(self, "acpiecdtbus", aa, NULL); 490 491 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 492 493 if (ACPI_FAILURE(rv)) 494 goto fail; 495 496 /* 497 * Scan the namespace and build our device tree. 498 */ 499 acpi_build_tree(sc); 500 501 #if NPCI > 0 502 /* 503 * Probe MCFG table 504 */ 505 acpimcfg_probe(sc); 506 #endif 507 508 acpi_md_callback(sc); 509 510 /* 511 * Early initialization of the _PDC control method 512 * that may load additional SSDT tables dynamically. 513 */ 514 (void)acpi_md_pdc(); 515 516 /* 517 * Install global notify handlers. 518 */ 519 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 520 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 521 522 if (ACPI_FAILURE(rv)) 523 goto fail; 524 525 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 526 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 527 528 if (ACPI_FAILURE(rv)) 529 goto fail; 530 531 acpi_active = 1; 532 533 if (!AcpiGbl_ReducedHardware) { 534 /* Show SCI interrupt. */ 535 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 536 AcpiGbl_FADT.SciInterrupt); 537 538 /* 539 * Install fixed-event handlers. 540 */ 541 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 542 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 543 } 544 545 acpitimer_init(sc); 546 acpi_config_tree(sc); 547 acpi_sleep_init(sc); 548 549 #ifdef ACPI_DEBUG 550 acpi_debug_init(); 551 #endif 552 553 /* 554 * Print debug information. 555 */ 556 acpi_print_verbose(sc); 557 558 return; 559 560 fail: 561 aprint_error("%s: failed to initialize ACPI: %s\n", 562 __func__, AcpiFormatException(rv)); 563 } 564 565 /* 566 * XXX: This is incomplete. 567 */ 568 static int 569 acpi_detach(device_t self, int flags) 570 { 571 struct acpi_softc *sc = device_private(self); 572 ACPI_STATUS rv; 573 int rc; 574 575 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 576 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 577 578 if (ACPI_FAILURE(rv)) 579 return EBUSY; 580 581 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 582 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 583 584 if (ACPI_FAILURE(rv)) 585 return EBUSY; 586 587 if ((rc = config_detach_children(self, flags)) != 0) 588 return rc; 589 590 if ((rc = acpitimer_detach()) != 0) 591 return rc; 592 593 if (!AcpiGbl_ReducedHardware) { 594 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 595 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 596 } 597 598 pmf_device_deregister(self); 599 600 acpi_softc = NULL; 601 602 return 0; 603 } 604 605 static void 606 acpi_childdet(device_t self, device_t child) 607 { 608 struct acpi_softc *sc = device_private(self); 609 struct acpi_devnode *ad; 610 611 if (sc->sc_apmbus == child) 612 sc->sc_apmbus = NULL; 613 614 if (sc->sc_hpet == child) 615 sc->sc_hpet = NULL; 616 617 if (sc->sc_wdrt == child) 618 sc->sc_wdrt = NULL; 619 620 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 621 622 if (ad->ad_device == child) 623 ad->ad_device = NULL; 624 } 625 } 626 627 static bool 628 acpi_suspend(device_t dv, const pmf_qual_t *qual) 629 { 630 631 acpi_suspended = 1; 632 633 return true; 634 } 635 636 static bool 637 acpi_resume(device_t dv, const pmf_qual_t *qual) 638 { 639 640 acpi_suspended = 0; 641 642 return true; 643 } 644 645 /* 646 * Namespace scan. 647 */ 648 static void 649 acpi_build_tree(struct acpi_softc *sc) 650 { 651 struct acpi_walkcontext awc; 652 653 /* 654 * Get the root scope handles. 655 */ 656 KASSERT(__arraycount(acpi_scopes) == 4); 657 658 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 659 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 660 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 661 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 662 663 /* 664 * Make the root node. 665 */ 666 awc.aw_sc = sc; 667 awc.aw_parent = NULL; 668 669 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 670 671 KASSERT(sc->sc_root == NULL); 672 KASSERT(awc.aw_parent != NULL); 673 674 sc->sc_root = awc.aw_parent; 675 676 /* 677 * Build the internal namespace. 678 */ 679 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 680 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 681 682 /* 683 * Scan the internal namespace. 684 */ 685 (void)acpi_pcidev_scan(sc->sc_root); 686 } 687 688 static void 689 acpi_config_tree(struct acpi_softc *sc) 690 { 691 /* 692 * Assign bus_dma resources 693 */ 694 acpi_config_dma(sc); 695 696 /* 697 * Configure all everything found "at acpi?". 698 */ 699 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 700 701 /* 702 * Update GPE information. 703 * 704 * Note that this must be called after 705 * all GPE handlers have been installed. 706 */ 707 (void)AcpiUpdateAllGpes(); 708 709 /* 710 * Defer rest of the configuration. 711 */ 712 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 713 } 714 715 static void 716 acpi_config_dma(struct acpi_softc *sc) 717 { 718 struct acpi_devnode *ad; 719 720 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 721 722 if (ad->ad_device != NULL) 723 continue; 724 725 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 726 continue; 727 728 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 729 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 730 } 731 } 732 733 static ACPI_STATUS 734 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 735 void *context, void **status) 736 { 737 struct acpi_walkcontext *awc = context; 738 struct acpi_softc *sc = awc->aw_sc; 739 struct acpi_devnode *ad; 740 ACPI_DEVICE_INFO *devinfo; 741 ACPI_OBJECT_TYPE type; 742 ACPI_STATUS rv; 743 744 rv = AcpiGetObjectInfo(handle, &devinfo); 745 746 if (ACPI_FAILURE(rv)) 747 return AE_OK; /* Do not terminate the walk. */ 748 749 type = devinfo->Type; 750 751 switch (type) { 752 753 case ACPI_TYPE_DEVICE: 754 acpi_activate_device(handle, &devinfo); 755 /* FALLTHROUGH */ 756 757 case ACPI_TYPE_PROCESSOR: 758 case ACPI_TYPE_THERMAL: 759 case ACPI_TYPE_POWER: 760 761 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 762 763 ad->ad_device = NULL; 764 ad->ad_notify = NULL; 765 ad->ad_pciinfo = NULL; 766 ad->ad_wakedev = NULL; 767 768 ad->ad_type = type; 769 ad->ad_handle = handle; 770 ad->ad_devinfo = devinfo; 771 772 ad->ad_root = sc->sc_dev; 773 ad->ad_parent = awc->aw_parent; 774 775 acpi_match_node_init(ad); 776 acpi_make_name(ad, devinfo->Name); 777 778 /* 779 * Identify wake GPEs from the _PRW. Note that 780 * AcpiUpdateAllGpes() must be called afterwards. 781 */ 782 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 783 acpi_wakedev_init(ad); 784 785 SIMPLEQ_INIT(&ad->ad_child_head); 786 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 787 788 if (ad->ad_parent != NULL) { 789 790 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 791 ad, ad_child_list); 792 } 793 794 awc->aw_parent = ad; 795 break; 796 797 default: 798 ACPI_FREE(devinfo); 799 break; 800 } 801 802 return AE_OK; 803 } 804 805 static ACPI_STATUS 806 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 807 void *context, void **status) 808 { 809 struct acpi_walkcontext *awc = context; 810 811 KASSERT(awc != NULL); 812 KASSERT(awc->aw_parent != NULL); 813 814 if (handle == awc->aw_parent->ad_handle) 815 awc->aw_parent = awc->aw_parent->ad_parent; 816 817 return AE_OK; 818 } 819 820 static void 821 acpi_make_name(struct acpi_devnode *ad, uint32_t name) 822 { 823 ACPI_NAME_UNION *anu; 824 int clear, i; 825 826 anu = (ACPI_NAME_UNION *)&name; 827 ad->ad_name[4] = '\0'; 828 829 for (i = 3, clear = 0; i >= 0; i--) { 830 831 if (clear == 0 && anu->Ascii[i] == '_') 832 ad->ad_name[i] = '\0'; 833 else { 834 ad->ad_name[i] = anu->Ascii[i]; 835 clear = 1; 836 } 837 } 838 839 if (ad->ad_name[0] == '\0') 840 ad->ad_name[0] = '_'; 841 } 842 843 bus_dma_tag_t 844 acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 845 { 846 return sc->sc_dmat; 847 } 848 __weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 849 850 bus_dma_tag_t 851 acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 852 { 853 return sc->sc_dmat64; 854 } 855 __weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 856 857 pci_chipset_tag_t 858 acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 859 { 860 return NULL; 861 } 862 __weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 863 864 /* 865 * Device attachment. 866 */ 867 static int 868 acpi_rescan(device_t self, const char *ifattr, const int *locators) 869 { 870 struct acpi_softc *sc = device_private(self); 871 struct acpi_attach_args aa; 872 873 /* 874 * Try to attach hpet(4) first via a specific table. 875 */ 876 aa.aa_memt = sc->sc_memt; 877 878 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) 879 sc->sc_hpet = config_found_ia(sc->sc_dev, 880 "acpihpetbus", &aa, NULL); 881 882 /* 883 * A two-pass scan for acpinodebus. 884 */ 885 if (ifattr_match(ifattr, "acpinodebus")) { 886 acpi_rescan_early(sc); 887 acpi_rescan_nodes(sc); 888 } 889 890 /* 891 * Attach APM emulation and acpiwdrt(4). 892 */ 893 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 894 sc->sc_apmbus = config_found_ia(sc->sc_dev, 895 "acpiapmbus", NULL, NULL); 896 897 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) 898 sc->sc_wdrt = config_found_ia(sc->sc_dev, 899 "acpiwdrtbus", NULL, NULL); 900 901 return 0; 902 } 903 904 static void 905 acpi_rescan_early(struct acpi_softc *sc) 906 { 907 struct acpi_attach_args aa; 908 struct acpi_devnode *ad; 909 910 /* 911 * First scan for devices such as acpiec(4) that 912 * should be always attached before anything else. 913 * We want these devices to attach regardless of 914 * the device status and other restrictions. 915 */ 916 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 917 918 if (ad->ad_device != NULL) 919 continue; 920 921 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 922 continue; 923 924 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 925 continue; 926 927 aa.aa_node = ad; 928 aa.aa_iot = sc->sc_iot; 929 aa.aa_memt = sc->sc_memt; 930 if (ad->ad_pciinfo != NULL) { 931 aa.aa_pc = ad->ad_pciinfo->ap_pc; 932 aa.aa_pciflags = sc->sc_pciflags; 933 } 934 aa.aa_ic = sc->sc_ic; 935 aa.aa_dmat = ad->ad_dmat; 936 aa.aa_dmat64 = ad->ad_dmat64; 937 938 ad->ad_device = config_found_ia(sc->sc_dev, 939 "acpinodebus", &aa, acpi_print); 940 } 941 } 942 943 static void 944 acpi_rescan_nodes(struct acpi_softc *sc) 945 { 946 const char * const hpet_ids[] = { "PNP0103", NULL }; 947 struct acpi_attach_args aa; 948 struct acpi_devnode *ad; 949 ACPI_DEVICE_INFO *di; 950 951 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 952 953 if (ad->ad_device != NULL) 954 continue; 955 956 /* 957 * There is a bug in ACPICA: it defines the type 958 * of the scopes incorrectly for its own reasons. 959 */ 960 if (acpi_is_scope(ad) != false) 961 continue; 962 963 di = ad->ad_devinfo; 964 965 /* 966 * We only attach devices which are present, enabled, and 967 * functioning properly. However, if a device is enabled, 968 * it is decoding resources and we should claim these, 969 * if possible. This requires changes to bus_space(9). 970 */ 971 if (di->Type == ACPI_TYPE_DEVICE && 972 !acpi_device_present(ad->ad_handle)) { 973 continue; 974 } 975 976 if (di->Type == ACPI_TYPE_POWER) 977 continue; 978 979 if (di->Type == ACPI_TYPE_PROCESSOR) 980 continue; 981 982 if (acpi_match_hid(di, acpi_early_ids) != 0) 983 continue; 984 985 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 986 continue; 987 988 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 989 continue; 990 991 aa.aa_node = ad; 992 aa.aa_iot = sc->sc_iot; 993 aa.aa_memt = sc->sc_memt; 994 if (ad->ad_pciinfo != NULL) { 995 aa.aa_pc = ad->ad_pciinfo->ap_pc; 996 aa.aa_pciflags = sc->sc_pciflags; 997 } 998 aa.aa_ic = sc->sc_ic; 999 aa.aa_dmat = ad->ad_dmat; 1000 aa.aa_dmat64 = ad->ad_dmat64; 1001 1002 ad->ad_device = config_found_ia(sc->sc_dev, 1003 "acpinodebus", &aa, acpi_print); 1004 } 1005 } 1006 1007 static void 1008 acpi_rescan_capabilities(device_t self) 1009 { 1010 struct acpi_softc *sc = device_private(self); 1011 struct acpi_devnode *ad; 1012 ACPI_HANDLE tmp; 1013 ACPI_STATUS rv; 1014 1015 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1016 1017 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1018 continue; 1019 1020 /* 1021 * Scan power resource capabilities. 1022 * 1023 * If any power states are supported, 1024 * at least _PR0 and _PR3 must be present. 1025 */ 1026 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1027 1028 if (ACPI_SUCCESS(rv)) { 1029 ad->ad_flags |= ACPI_DEVICE_POWER; 1030 acpi_power_add(ad); 1031 } 1032 1033 /* 1034 * Scan wake-up capabilities. 1035 */ 1036 if (ad->ad_wakedev != NULL) { 1037 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1038 acpi_wakedev_add(ad); 1039 } 1040 1041 /* 1042 * Scan docking stations. 1043 */ 1044 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1045 1046 if (ACPI_SUCCESS(rv)) 1047 ad->ad_flags |= ACPI_DEVICE_DOCK; 1048 1049 /* 1050 * Scan devices that are ejectable. 1051 */ 1052 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1053 1054 if (ACPI_SUCCESS(rv)) 1055 ad->ad_flags |= ACPI_DEVICE_EJECT; 1056 } 1057 } 1058 1059 static int 1060 acpi_print(void *aux, const char *pnp) 1061 { 1062 struct acpi_attach_args *aa = aux; 1063 struct acpi_devnode *ad; 1064 const char *hid, *uid; 1065 ACPI_DEVICE_INFO *di; 1066 1067 ad = aa->aa_node; 1068 di = ad->ad_devinfo; 1069 1070 hid = di->HardwareId.String; 1071 uid = di->UniqueId.String; 1072 1073 if (pnp != NULL) { 1074 1075 if (di->Type != ACPI_TYPE_DEVICE) { 1076 1077 aprint_normal("%s (ACPI Object Type '%s') at %s", 1078 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1079 1080 return UNCONF; 1081 } 1082 1083 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1084 return 0; 1085 1086 aprint_normal("%s (%s) ", ad->ad_name, hid); 1087 acpi_print_dev(hid); 1088 aprint_normal("at %s", pnp); 1089 1090 return UNCONF; 1091 } 1092 1093 aprint_normal(" (%s", ad->ad_name); 1094 1095 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1096 1097 aprint_normal(", %s", hid); 1098 1099 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1100 1101 if (uid[0] == '\0') 1102 uid = "<null>"; 1103 1104 aprint_normal("-%s", uid); 1105 } 1106 } 1107 1108 aprint_normal(")"); 1109 1110 return UNCONF; 1111 } 1112 1113 /* 1114 * Notify. 1115 */ 1116 static void 1117 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1118 { 1119 struct acpi_softc *sc = acpi_softc; 1120 struct acpi_devnode *ad; 1121 1122 KASSERT(sc != NULL); 1123 KASSERT(aux == NULL); 1124 KASSERT(acpi_active != 0); 1125 1126 if (acpi_suspended != 0) 1127 return; 1128 1129 /* 1130 * System: 0x00 - 0x7F. 1131 * Device: 0x80 - 0xFF. 1132 */ 1133 switch (event) { 1134 1135 case ACPI_NOTIFY_BUS_CHECK: 1136 case ACPI_NOTIFY_DEVICE_CHECK: 1137 case ACPI_NOTIFY_DEVICE_WAKE: 1138 case ACPI_NOTIFY_EJECT_REQUEST: 1139 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1140 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1141 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1142 case ACPI_NOTIFY_POWER_FAULT: 1143 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1144 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1145 case ACPI_NOTIFY_RESERVED: 1146 case ACPI_NOTIFY_LOCALITY_UPDATE: 1147 break; 1148 } 1149 1150 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1151 "%s (%p)\n", event, acpi_name(handle), handle)); 1152 1153 /* 1154 * We deliver notifications only to drivers 1155 * that have been successfully attached and 1156 * that have registered a handler with us. 1157 * The opaque pointer is always the device_t. 1158 */ 1159 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1160 1161 if (ad->ad_device == NULL) 1162 continue; 1163 1164 if (ad->ad_notify == NULL) 1165 continue; 1166 1167 if (ad->ad_handle != handle) 1168 continue; 1169 1170 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1171 1172 return; 1173 } 1174 1175 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1176 "for %s (%p)\n", event, acpi_name(handle), handle); 1177 } 1178 1179 bool 1180 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1181 { 1182 struct acpi_softc *sc = acpi_softc; 1183 1184 KASSERT(sc != NULL); 1185 KASSERT(acpi_active != 0); 1186 1187 if (acpi_suspended != 0) 1188 goto fail; 1189 1190 if (ad == NULL || notify == NULL) 1191 goto fail; 1192 1193 ad->ad_notify = notify; 1194 1195 return true; 1196 1197 fail: 1198 aprint_error_dev(sc->sc_dev, "failed to register notify " 1199 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1200 1201 return false; 1202 } 1203 1204 void 1205 acpi_deregister_notify(struct acpi_devnode *ad) 1206 { 1207 1208 ad->ad_notify = NULL; 1209 } 1210 1211 /* 1212 * Fixed buttons. 1213 */ 1214 static void 1215 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1216 { 1217 struct sysmon_pswitch *smpsw; 1218 ACPI_STATUS rv; 1219 int type; 1220 1221 switch (event) { 1222 1223 case ACPI_EVENT_POWER_BUTTON: 1224 1225 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1226 return; 1227 1228 type = PSWITCH_TYPE_POWER; 1229 smpsw = &sc->sc_smpsw_power; 1230 break; 1231 1232 case ACPI_EVENT_SLEEP_BUTTON: 1233 1234 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1235 return; 1236 1237 type = PSWITCH_TYPE_SLEEP; 1238 smpsw = &sc->sc_smpsw_sleep; 1239 break; 1240 1241 default: 1242 rv = AE_TYPE; 1243 goto fail; 1244 } 1245 1246 smpsw->smpsw_type = type; 1247 smpsw->smpsw_name = device_xname(sc->sc_dev); 1248 1249 if (sysmon_pswitch_register(smpsw) != 0) { 1250 rv = AE_ERROR; 1251 goto fail; 1252 } 1253 1254 AcpiClearEvent(event); 1255 1256 rv = AcpiInstallFixedEventHandler(event, 1257 acpi_fixed_button_handler, smpsw); 1258 1259 if (ACPI_FAILURE(rv)) { 1260 sysmon_pswitch_unregister(smpsw); 1261 goto fail; 1262 } 1263 1264 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1265 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1266 1267 return; 1268 1269 fail: 1270 aprint_error_dev(sc->sc_dev, "failed to register " 1271 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1272 } 1273 1274 static void 1275 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1276 { 1277 struct sysmon_pswitch *smpsw; 1278 ACPI_STATUS rv; 1279 1280 switch (event) { 1281 1282 case ACPI_EVENT_POWER_BUTTON: 1283 smpsw = &sc->sc_smpsw_power; 1284 1285 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1286 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1287 return; 1288 } 1289 1290 break; 1291 1292 case ACPI_EVENT_SLEEP_BUTTON: 1293 smpsw = &sc->sc_smpsw_sleep; 1294 1295 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1296 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1297 return; 1298 } 1299 1300 break; 1301 1302 default: 1303 rv = AE_TYPE; 1304 goto fail; 1305 } 1306 1307 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1308 1309 if (ACPI_SUCCESS(rv)) { 1310 sysmon_pswitch_unregister(smpsw); 1311 return; 1312 } 1313 1314 fail: 1315 aprint_error_dev(sc->sc_dev, "failed to deregister " 1316 "fixed event: %s\n", AcpiFormatException(rv)); 1317 } 1318 1319 static uint32_t 1320 acpi_fixed_button_handler(void *context) 1321 { 1322 static const int handler = OSL_NOTIFY_HANDLER; 1323 struct sysmon_pswitch *smpsw = context; 1324 1325 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1326 1327 return ACPI_INTERRUPT_HANDLED; 1328 } 1329 1330 static void 1331 acpi_fixed_button_pressed(void *context) 1332 { 1333 struct sysmon_pswitch *smpsw = context; 1334 1335 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1336 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1337 "power" : "sleep")); 1338 1339 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1340 } 1341 1342 /* 1343 * Sleep. 1344 */ 1345 static void 1346 acpi_sleep_init(struct acpi_softc *sc) 1347 { 1348 uint8_t a, b, i; 1349 ACPI_STATUS rv; 1350 1351 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1352 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1353 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1354 1355 /* 1356 * Evaluate supported sleep states. 1357 */ 1358 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1359 1360 rv = AcpiGetSleepTypeData(i, &a, &b); 1361 1362 if (ACPI_SUCCESS(rv)) 1363 sc->sc_sleepstates |= __BIT(i); 1364 } 1365 } 1366 1367 /* 1368 * Must be called with interrupts enabled. 1369 */ 1370 void 1371 acpi_enter_sleep_state(int state) 1372 { 1373 struct acpi_softc *sc = acpi_softc; 1374 ACPI_STATUS rv; 1375 1376 if (acpi_softc == NULL) 1377 return; 1378 1379 if (state == sc->sc_sleepstate) 1380 return; 1381 1382 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1383 return; 1384 1385 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1386 1387 switch (state) { 1388 1389 case ACPI_STATE_S0: 1390 sc->sc_sleepstate = ACPI_STATE_S0; 1391 return; 1392 1393 case ACPI_STATE_S1: 1394 case ACPI_STATE_S2: 1395 case ACPI_STATE_S3: 1396 case ACPI_STATE_S4: 1397 1398 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1399 aprint_error_dev(sc->sc_dev, "sleep state " 1400 "S%d is not available\n", state); 1401 return; 1402 } 1403 1404 /* 1405 * Evaluate the _TTS method. This should be done before 1406 * pmf_system_suspend(9) and the evaluation of _PTS. 1407 * We should also re-evaluate this once we return to 1408 * S0 or if we abort the sleep state transition in the 1409 * middle (see ACPI 3.0, section 7.3.6). In reality, 1410 * however, the _TTS method is seldom seen in the field. 1411 */ 1412 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1413 1414 if (ACPI_SUCCESS(rv)) 1415 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1416 1417 if (state != ACPI_STATE_S1 && 1418 pmf_system_suspend(PMF_Q_NONE) != true) { 1419 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1420 break; 1421 } 1422 1423 /* 1424 * This will evaluate the _PTS and _SST methods, 1425 * but unlike the documentation claims, not _GTS, 1426 * which is evaluated in AcpiEnterSleepState(). 1427 * This must be called with interrupts enabled. 1428 */ 1429 rv = AcpiEnterSleepStatePrep(state); 1430 1431 if (ACPI_FAILURE(rv)) { 1432 aprint_error_dev(sc->sc_dev, "failed to prepare " 1433 "S%d: %s\n", state, AcpiFormatException(rv)); 1434 break; 1435 } 1436 1437 /* 1438 * After the _PTS method has been evaluated, we can 1439 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1440 */ 1441 acpi_wakedev_commit(sc, state); 1442 1443 sc->sc_sleepstate = state; 1444 1445 if (state == ACPI_STATE_S1) { 1446 1447 /* 1448 * Before the transition to S1, CPU caches 1449 * must be flushed (see ACPI 4.0, 7.3.4.2). 1450 * 1451 * Note that interrupts must be off before 1452 * calling AcpiEnterSleepState(). Conversely, 1453 * AcpiLeaveSleepState() should always be 1454 * called with interrupts enabled. 1455 */ 1456 acpi_md_OsDisableInterrupt(); 1457 1458 ACPI_FLUSH_CPU_CACHE(); 1459 rv = AcpiEnterSleepState(state); 1460 1461 if (ACPI_FAILURE(rv)) 1462 aprint_error_dev(sc->sc_dev, "failed to " 1463 "enter S1: %s\n", AcpiFormatException(rv)); 1464 1465 /* 1466 * Clear fixed events and disable all GPEs before 1467 * interrupts are enabled. 1468 */ 1469 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1470 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1471 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1472 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1473 AcpiClearEvent(ACPI_EVENT_RTC); 1474 #if (!ACPI_REDUCED_HARDWARE) 1475 AcpiHwDisableAllGpes(); 1476 #endif 1477 1478 acpi_md_OsEnableInterrupt(); 1479 rv = AcpiLeaveSleepState(state); 1480 1481 } else { 1482 1483 (void)acpi_md_sleep(state); 1484 1485 if (state == ACPI_STATE_S4) 1486 AcpiEnable(); 1487 1488 (void)pmf_system_bus_resume(PMF_Q_NONE); 1489 (void)AcpiLeaveSleepState(state); 1490 (void)AcpiSetFirmwareWakingVector(0, 0); 1491 (void)pmf_system_resume(PMF_Q_NONE); 1492 } 1493 1494 /* 1495 * No wake GPEs should be enabled at runtime. 1496 */ 1497 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1498 break; 1499 1500 case ACPI_STATE_S5: 1501 1502 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1503 1504 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1505 1506 if (ACPI_FAILURE(rv)) { 1507 aprint_error_dev(sc->sc_dev, "failed to prepare " 1508 "S%d: %s\n", state, AcpiFormatException(rv)); 1509 break; 1510 } 1511 1512 (void)AcpiDisableAllGpes(); 1513 1514 DELAY(1000000); 1515 1516 sc->sc_sleepstate = state; 1517 acpi_md_OsDisableInterrupt(); 1518 1519 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1520 1521 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1522 1523 break; 1524 } 1525 1526 sc->sc_sleepstate = ACPI_STATE_S0; 1527 1528 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1529 } 1530 1531 /* 1532 * Sysctl. 1533 */ 1534 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1535 { 1536 const struct sysctlnode *rnode, *snode; 1537 int err; 1538 1539 err = sysctl_createv(clog, 0, NULL, &rnode, 1540 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1541 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1542 NULL, 0, NULL, 0, 1543 CTL_HW, CTL_CREATE, CTL_EOL); 1544 1545 if (err != 0) 1546 return; 1547 1548 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1549 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1550 "root", SYSCTL_DESCR("ACPI root pointer"), 1551 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1552 CTL_CREATE, CTL_EOL); 1553 1554 err = sysctl_createv(clog, 0, &rnode, &snode, 1555 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1556 "sleep", SYSCTL_DESCR("ACPI sleep"), 1557 NULL, 0, NULL, 0, 1558 CTL_CREATE, CTL_EOL); 1559 1560 if (err != 0) 1561 return; 1562 1563 (void)sysctl_createv(NULL, 0, &snode, NULL, 1564 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1565 "state", SYSCTL_DESCR("System sleep state"), 1566 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1567 CTL_CREATE, CTL_EOL); 1568 1569 (void)sysctl_createv(NULL, 0, &snode, NULL, 1570 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1571 "states", SYSCTL_DESCR("Supported sleep states"), 1572 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1573 CTL_CREATE, CTL_EOL); 1574 1575 err = sysctl_createv(clog, 0, &rnode, &rnode, 1576 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1577 "stat", SYSCTL_DESCR("ACPI statistics"), 1578 NULL, 0, NULL, 0, 1579 CTL_CREATE, CTL_EOL); 1580 1581 if (err != 0) 1582 return; 1583 1584 (void)sysctl_createv(clog, 0, &rnode, NULL, 1585 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1586 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1587 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1588 CTL_CREATE, CTL_EOL); 1589 1590 (void)sysctl_createv(clog, 0, &rnode, NULL, 1591 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1592 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1593 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1594 CTL_CREATE, CTL_EOL); 1595 1596 (void)sysctl_createv(clog, 0, &rnode, NULL, 1597 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1598 "fixed", SYSCTL_DESCR("Number of fixed events"), 1599 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1600 CTL_CREATE, CTL_EOL); 1601 1602 (void)sysctl_createv(clog, 0, &rnode, NULL, 1603 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1604 "method", SYSCTL_DESCR("Number of methods executed"), 1605 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1606 CTL_CREATE, CTL_EOL); 1607 1608 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1609 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1610 } 1611 1612 static int 1613 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1614 { 1615 struct sysctlnode node; 1616 uint64_t t; 1617 int err, i; 1618 1619 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1620 t += AcpiFixedEventCount[i]; 1621 1622 node = *rnode; 1623 node.sysctl_data = &t; 1624 1625 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1626 1627 if (err || newp == NULL) 1628 return err; 1629 1630 return 0; 1631 } 1632 1633 static int 1634 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1635 { 1636 struct acpi_softc *sc = acpi_softc; 1637 struct sysctlnode node; 1638 int err, t; 1639 1640 if (acpi_softc == NULL) 1641 return ENOSYS; 1642 1643 node = *rnode; 1644 t = sc->sc_sleepstate; 1645 node.sysctl_data = &t; 1646 1647 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1648 1649 if (err || newp == NULL) 1650 return err; 1651 1652 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1653 return EINVAL; 1654 1655 acpi_enter_sleep_state(t); 1656 1657 return 0; 1658 } 1659 1660 static int 1661 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1662 { 1663 struct acpi_softc *sc = acpi_softc; 1664 struct sysctlnode node; 1665 char t[3 * 6 + 1]; 1666 int err; 1667 1668 if (acpi_softc == NULL) 1669 return ENOSYS; 1670 1671 (void)memset(t, '\0', sizeof(t)); 1672 1673 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1674 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1675 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1676 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1677 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1678 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1679 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1680 1681 node = *rnode; 1682 node.sysctl_data = &t; 1683 1684 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1685 1686 if (err || newp == NULL) 1687 return err; 1688 1689 return 0; 1690 } 1691 1692 /* 1693 * Tables. 1694 */ 1695 ACPI_PHYSICAL_ADDRESS 1696 acpi_OsGetRootPointer(void) 1697 { 1698 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1699 1700 /* 1701 * We let MD code handle this since there are multiple ways to do it: 1702 * 1703 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1704 * 1705 * IA-64: Use the EFI. 1706 */ 1707 PhysicalAddress = acpi_md_OsGetRootPointer(); 1708 1709 if (acpi_root_pointer == 0) 1710 acpi_root_pointer = PhysicalAddress; 1711 1712 return PhysicalAddress; 1713 } 1714 1715 static ACPI_TABLE_HEADER * 1716 acpi_map_rsdt(void) 1717 { 1718 ACPI_PHYSICAL_ADDRESS paddr; 1719 ACPI_TABLE_RSDP *rsdp; 1720 1721 paddr = AcpiOsGetRootPointer(); 1722 1723 if (paddr == 0) 1724 return NULL; 1725 1726 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1727 1728 if (rsdp == NULL) 1729 return NULL; 1730 1731 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1732 paddr = rsdp->XsdtPhysicalAddress; 1733 else 1734 paddr = rsdp->RsdtPhysicalAddress; 1735 1736 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1737 1738 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1739 } 1740 1741 /* 1742 * XXX: Refactor to be a generic function that unmaps tables. 1743 */ 1744 static void 1745 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1746 { 1747 1748 if (rsdt == NULL) 1749 return; 1750 1751 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1752 } 1753 1754 /* 1755 * XXX: Refactor to be a generic function that maps tables. 1756 */ 1757 ACPI_STATUS 1758 acpi_madt_map(void) 1759 { 1760 ACPI_STATUS rv; 1761 1762 if (madt_header != NULL) 1763 return AE_ALREADY_EXISTS; 1764 1765 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1766 1767 if (ACPI_FAILURE(rv)) 1768 return rv; 1769 1770 return AE_OK; 1771 } 1772 1773 void 1774 acpi_madt_unmap(void) 1775 { 1776 madt_header = NULL; 1777 } 1778 1779 ACPI_STATUS 1780 acpi_gtdt_map(void) 1781 { 1782 ACPI_STATUS rv; 1783 1784 if (gtdt_header != NULL) 1785 return AE_ALREADY_EXISTS; 1786 1787 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1788 1789 if (ACPI_FAILURE(rv)) 1790 return rv; 1791 1792 return AE_OK; 1793 } 1794 1795 void 1796 acpi_gtdt_unmap(void) 1797 { 1798 gtdt_header = NULL; 1799 } 1800 1801 /* 1802 * XXX: Refactor to be a generic function that walks tables. 1803 */ 1804 void 1805 acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1806 { 1807 ACPI_SUBTABLE_HEADER *hdrp; 1808 char *madtend, *where; 1809 1810 madtend = (char *)madt_header + madt_header->Length; 1811 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1812 1813 while (where < madtend) { 1814 1815 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1816 1817 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1818 break; 1819 1820 where += hdrp->Length; 1821 } 1822 } 1823 1824 void 1825 acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1826 { 1827 ACPI_GTDT_HEADER *hdrp; 1828 char *gtdtend, *where; 1829 1830 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1831 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1832 1833 while (where < gtdtend) { 1834 1835 hdrp = (ACPI_GTDT_HEADER *)where; 1836 1837 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1838 break; 1839 1840 where += hdrp->Length; 1841 } 1842 } 1843 1844 /* 1845 * Miscellaneous. 1846 */ 1847 static bool 1848 acpi_is_scope(struct acpi_devnode *ad) 1849 { 1850 int i; 1851 1852 /* 1853 * Return true if the node is a root scope. 1854 */ 1855 if (ad->ad_parent == NULL) 1856 return false; 1857 1858 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1859 return false; 1860 1861 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1862 1863 if (acpi_scopes[i] == NULL) 1864 continue; 1865 1866 if (ad->ad_handle == acpi_scopes[i]) 1867 return true; 1868 } 1869 1870 return false; 1871 } 1872 1873 bool 1874 acpi_device_present(ACPI_HANDLE handle) 1875 { 1876 ACPI_STATUS rv; 1877 ACPI_INTEGER sta; 1878 1879 rv = acpi_eval_integer(handle, "_STA", &sta); 1880 1881 if (ACPI_FAILURE(rv)) { 1882 /* No _STA method -> must be there */ 1883 return rv == AE_NOT_FOUND; 1884 } 1885 1886 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1887 } 1888 1889 /* 1890 * ACPIVERBOSE. 1891 */ 1892 void 1893 acpi_load_verbose(void) 1894 { 1895 1896 if (acpi_verbose_loaded == 0) 1897 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1898 } 1899 1900 void 1901 acpi_print_verbose_stub(struct acpi_softc *sc) 1902 { 1903 1904 acpi_load_verbose(); 1905 1906 if (acpi_verbose_loaded != 0) 1907 acpi_print_verbose(sc); 1908 } 1909 1910 void 1911 acpi_print_dev_stub(const char *pnpstr) 1912 { 1913 1914 acpi_load_verbose(); 1915 1916 if (acpi_verbose_loaded != 0) 1917 acpi_print_dev(pnpstr); 1918 } 1919 1920 MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1921 1922 /* 1923 * ACPI_ACTIVATE_DEV. 1924 */ 1925 static void 1926 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1927 { 1928 1929 #ifndef ACPI_ACTIVATE_DEV 1930 return; 1931 } 1932 #else 1933 static const int valid = ACPI_VALID_HID; 1934 ACPI_DEVICE_INFO *newdi; 1935 ACPI_STATUS rv; 1936 1937 1938 /* 1939 * If the device is valid and present, 1940 * but not enabled, try to activate it. 1941 */ 1942 if (((*di)->Valid & valid) != valid) 1943 return; 1944 1945 if (!acpi_device_present(handle)) 1946 return; 1947 1948 rv = acpi_allocate_resources(handle); 1949 1950 if (ACPI_FAILURE(rv)) 1951 goto fail; 1952 1953 rv = AcpiGetObjectInfo(handle, &newdi); 1954 1955 if (ACPI_FAILURE(rv)) 1956 goto fail; 1957 1958 ACPI_FREE(*di); 1959 *di = newdi; 1960 1961 aprint_verbose_dev(acpi_softc->sc_dev, 1962 "%s activated\n", (*di)->HardwareId.String); 1963 1964 return; 1965 1966 fail: 1967 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1968 "activate %s\n", (*di)->HardwareId.String); 1969 } 1970 1971 /* 1972 * XXX: This very incomplete. 1973 */ 1974 ACPI_STATUS 1975 acpi_allocate_resources(ACPI_HANDLE handle) 1976 { 1977 ACPI_BUFFER bufp, bufc, bufn; 1978 ACPI_RESOURCE *resp, *resc, *resn; 1979 ACPI_RESOURCE_IRQ *irq; 1980 #if 0 1981 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1982 #endif 1983 ACPI_STATUS rv; 1984 uint delta; 1985 1986 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1987 if (ACPI_FAILURE(rv)) 1988 goto out; 1989 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1990 if (ACPI_FAILURE(rv)) { 1991 goto out1; 1992 } 1993 1994 bufn.Length = 1000; 1995 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1996 resp = bufp.Pointer; 1997 resc = bufc.Pointer; 1998 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1999 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2000 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 2001 resp = ACPI_NEXT_RESOURCE(resp); 2002 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 2003 break; 2004 /* Found identical Id */ 2005 resn->Type = resc->Type; 2006 switch (resc->Type) { 2007 case ACPI_RESOURCE_TYPE_IRQ: 2008 memcpy(&resn->Data, &resp->Data, 2009 sizeof(ACPI_RESOURCE_IRQ)); 2010 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2011 irq->Interrupts[0] = 2012 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2013 Interrupts[irq->InterruptCount-1]; 2014 irq->InterruptCount = 1; 2015 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2016 break; 2017 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2018 memcpy(&resn->Data, &resp->Data, 2019 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2020 #if 0 2021 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2022 /* 2023 * XXX: Not duplicating the interrupt logic above 2024 * because its not clear what it accomplishes. 2025 */ 2026 xirq->Interrupts[0] = 2027 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2028 Interrupts[irq->NumberOfInterrupts-1]; 2029 xirq->NumberOfInterrupts = 1; 2030 #endif 2031 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2032 break; 2033 case ACPI_RESOURCE_TYPE_IO: 2034 memcpy(&resn->Data, &resp->Data, 2035 sizeof(ACPI_RESOURCE_IO)); 2036 resn->Length = resp->Length; 2037 break; 2038 default: 2039 aprint_error_dev(acpi_softc->sc_dev, 2040 "%s: invalid type %u\n", __func__, resc->Type); 2041 rv = AE_BAD_DATA; 2042 goto out2; 2043 } 2044 resc = ACPI_NEXT_RESOURCE(resc); 2045 resn = ACPI_NEXT_RESOURCE(resn); 2046 resp = ACPI_NEXT_RESOURCE(resp); 2047 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2048 if (delta >= 2049 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2050 bufn.Length *= 2; 2051 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2052 M_ACPI, M_WAITOK); 2053 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2054 delta); 2055 } 2056 } 2057 2058 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2059 aprint_error_dev(acpi_softc->sc_dev, 2060 "%s: resc not exhausted\n", __func__); 2061 rv = AE_BAD_DATA; 2062 goto out3; 2063 } 2064 2065 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2066 rv = AcpiSetCurrentResources(handle, &bufn); 2067 2068 if (ACPI_FAILURE(rv)) 2069 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2070 "resources: %s\n", __func__, AcpiFormatException(rv)); 2071 2072 out3: 2073 free(bufn.Pointer, M_ACPI); 2074 out2: 2075 ACPI_FREE(bufc.Pointer); 2076 out1: 2077 ACPI_FREE(bufp.Pointer); 2078 out: 2079 return rv; 2080 } 2081 2082 #endif /* ACPI_ACTIVATE_DEV */ 2083