1 /* $NetBSD: acpi.c,v 1.294 2021/12/20 11:17:40 skrll 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 1.294 2021/12/20 11:17:40 skrll 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 "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 */ 189 static const char * const acpi_early_ids[] = { 190 "PNP0C09", /* acpiec(4) */ 191 NULL 192 }; 193 194 static int acpi_match(device_t, cfdata_t, void *); 195 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 196 static void acpi_attach(device_t, device_t, void *); 197 static int acpi_detach(device_t, int); 198 static void acpi_childdet(device_t, device_t); 199 static bool acpi_suspend(device_t, const pmf_qual_t *); 200 static bool acpi_resume(device_t, const pmf_qual_t *); 201 202 static void acpi_build_tree(struct acpi_softc *); 203 static void acpi_config_tree(struct acpi_softc *); 204 static void acpi_config_dma(struct acpi_softc *); 205 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 206 void *, void **); 207 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 208 void *, void **); 209 static void acpi_make_name(struct acpi_devnode *, uint32_t); 210 211 static int acpi_rescan(device_t, const char *, const int *); 212 static void acpi_rescan_early(struct acpi_softc *); 213 static void acpi_rescan_nodes(struct acpi_softc *); 214 static void acpi_rescan_capabilities(device_t); 215 static int acpi_print(void *aux, const char *); 216 217 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 218 219 static void acpi_register_fixed_button(struct acpi_softc *, int); 220 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 221 static uint32_t acpi_fixed_button_handler(void *); 222 static void acpi_fixed_button_pressed(void *); 223 224 static void acpi_sleep_init(struct acpi_softc *); 225 226 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 227 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 228 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 229 230 static bool acpi_is_scope(struct acpi_devnode *); 231 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 232 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 233 234 void acpi_print_verbose_stub(struct acpi_softc *); 235 void acpi_print_dev_stub(const char *); 236 237 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 238 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 239 240 void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 241 void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 242 243 bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 244 bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 245 pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 246 247 CFATTACH_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 */ 256 int 257 acpi_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; 340 341 fail: 342 (void)AcpiTerminate(); 343 344 return 0; 345 } 346 347 void 348 acpi_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 } 359 360 int 361 acpi_check(device_t parent, const char *ifattr) 362 { 363 return config_search(parent, NULL, 364 CFARGS(.submatch = acpi_submatch, 365 .iattr = ifattr)) != NULL; 366 } 367 368 int 369 acpi_reset(void) 370 { 371 struct acpi_softc *sc = acpi_softc; 372 ACPI_GENERIC_ADDRESS *ResetReg; 373 ACPI_PCI_ID PciId; 374 ACPI_STATUS status; 375 376 if (sc == NULL) 377 return ENXIO; 378 379 ResetReg = &AcpiGbl_FADT.ResetRegister; 380 381 /* Check if the reset register is supported */ 382 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 383 !ResetReg->Address) { 384 return ENOENT; 385 } 386 387 switch (ResetReg->SpaceId) { 388 case ACPI_ADR_SPACE_PCI_CONFIG: 389 PciId.Segment = PciId.Bus = 0; 390 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 391 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 392 status = AcpiOsWritePciConfiguration(&PciId, 393 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 394 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 395 break; 396 case ACPI_ADR_SPACE_SYSTEM_IO: 397 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 398 status = AcpiReset(); 399 break; 400 default: 401 status = AE_TYPE; 402 break; 403 } 404 405 return ACPI_FAILURE(status) ? EIO : 0; 406 } 407 408 /* 409 * Autoconfiguration. 410 */ 411 static int 412 acpi_match(device_t parent, cfdata_t match, void *aux) 413 { 414 /* 415 * XXX: Nada; MD code has called acpi_probe(). 416 */ 417 return 1; 418 } 419 420 static int 421 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 422 { 423 struct cfattach *ca; 424 425 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 426 427 return (ca == &acpi_ca); 428 } 429 430 static void 431 acpi_attach(device_t parent, device_t self, void *aux) 432 { 433 struct acpi_softc *sc = device_private(self); 434 struct acpibus_attach_args *aa = aux; 435 ACPI_TABLE_HEADER *rsdt, *hdr; 436 ACPI_STATUS rv; 437 int i; 438 439 aprint_naive("\n"); 440 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 441 442 if (acpi_softc != NULL) 443 panic("%s: already attached", __func__); 444 445 rsdt = acpi_map_rsdt(); 446 447 if (rsdt == NULL) 448 aprint_error_dev(self, "X/RSDT: Not found\n"); 449 else { 450 aprint_verbose_dev(self, 451 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 452 rsdt->OemId, rsdt->OemTableId, 453 rsdt->OemRevision, 454 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 455 } 456 457 acpi_unmap_rsdt(rsdt); 458 459 sc->sc_dev = self; 460 sc->sc_root = NULL; 461 462 sc->sc_sleepstate = ACPI_STATE_S0; 463 sc->sc_quirks = acpi_find_quirks(); 464 465 sysmon_power_settype("acpi"); 466 467 sc->sc_iot = aa->aa_iot; 468 sc->sc_memt = aa->aa_memt; 469 sc->sc_pciflags = aa->aa_pciflags; 470 sc->sc_ic = aa->aa_ic; 471 sc->sc_dmat = aa->aa_dmat; 472 sc->sc_dmat64 = aa->aa_dmat64; 473 474 SIMPLEQ_INIT(&sc->sc_head); 475 476 acpi_softc = sc; 477 478 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 479 aprint_error_dev(self, "couldn't establish power handler\n"); 480 481 /* 482 * Bring ACPICA on-line. 483 */ 484 485 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 486 487 if (ACPI_FAILURE(rv)) 488 goto fail; 489 490 /* 491 * Early initialization of acpiec(4) via ECDT. 492 */ 493 config_found(self, aa, NULL, 494 CFARGS(.iattr = "acpiecdtbus")); 495 496 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 497 498 if (ACPI_FAILURE(rv)) 499 goto fail; 500 501 /* 502 * Scan the namespace and build our device tree. 503 */ 504 acpi_build_tree(sc); 505 506 #if NPCI > 0 507 /* 508 * Probe MCFG table 509 */ 510 acpimcfg_probe(sc); 511 #endif 512 513 acpi_md_callback(sc); 514 515 /* 516 * Early initialization of the _PDC control method 517 * that may load additional SSDT tables dynamically. 518 */ 519 (void)acpi_md_pdc(); 520 521 /* 522 * Install global notify handlers. 523 */ 524 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 525 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 526 527 if (ACPI_FAILURE(rv)) 528 goto fail; 529 530 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 531 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 532 533 if (ACPI_FAILURE(rv)) 534 goto fail; 535 536 acpi_active = 1; 537 538 if (!AcpiGbl_ReducedHardware) { 539 /* Show SCI interrupt. */ 540 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 541 AcpiGbl_FADT.SciInterrupt); 542 543 /* 544 * Install fixed-event handlers. 545 */ 546 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 547 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 548 } 549 550 /* 551 * Load drivers that operate on System Description Tables. 552 */ 553 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i) { 554 rv = AcpiGetTableByIndex(i, &hdr); 555 if (ACPI_FAILURE(rv)) { 556 continue; 557 } 558 config_found(sc->sc_dev, hdr, NULL, 559 CFARGS(.iattr = "acpisdtbus")); 560 AcpiPutTable(hdr); 561 } 562 563 acpitimer_init(sc); 564 acpi_config_tree(sc); 565 acpi_sleep_init(sc); 566 567 #ifdef ACPI_DEBUG 568 acpi_debug_init(); 569 #endif 570 571 /* 572 * Print debug information. 573 */ 574 acpi_print_verbose(sc); 575 576 return; 577 578 fail: 579 aprint_error("%s: failed to initialize ACPI: %s\n", 580 __func__, AcpiFormatException(rv)); 581 } 582 583 /* 584 * XXX: This is incomplete. 585 */ 586 static int 587 acpi_detach(device_t self, int flags) 588 { 589 struct acpi_softc *sc = device_private(self); 590 ACPI_STATUS rv; 591 int rc; 592 593 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 594 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 595 596 if (ACPI_FAILURE(rv)) 597 return EBUSY; 598 599 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 600 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 601 602 if (ACPI_FAILURE(rv)) 603 return EBUSY; 604 605 if ((rc = config_detach_children(self, flags)) != 0) 606 return rc; 607 608 if ((rc = acpitimer_detach()) != 0) 609 return rc; 610 611 if (!AcpiGbl_ReducedHardware) { 612 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 613 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 614 } 615 616 pmf_device_deregister(self); 617 618 acpi_softc = NULL; 619 620 return 0; 621 } 622 623 static void 624 acpi_childdet(device_t self, device_t child) 625 { 626 struct acpi_softc *sc = device_private(self); 627 struct acpi_devnode *ad; 628 629 if (sc->sc_apmbus == child) 630 sc->sc_apmbus = NULL; 631 632 if (sc->sc_hpet == child) 633 sc->sc_hpet = NULL; 634 635 if (sc->sc_wdrt == child) 636 sc->sc_wdrt = NULL; 637 638 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 639 640 if (ad->ad_device == child) 641 ad->ad_device = NULL; 642 } 643 } 644 645 static bool 646 acpi_suspend(device_t dv, const pmf_qual_t *qual) 647 { 648 649 acpi_suspended = 1; 650 651 return true; 652 } 653 654 static bool 655 acpi_resume(device_t dv, const pmf_qual_t *qual) 656 { 657 658 acpi_suspended = 0; 659 660 return true; 661 } 662 663 /* 664 * Namespace scan. 665 */ 666 static void 667 acpi_build_tree(struct acpi_softc *sc) 668 { 669 struct acpi_walkcontext awc; 670 671 /* 672 * Get the root scope handles. 673 */ 674 KASSERT(__arraycount(acpi_scopes) == 4); 675 676 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 677 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 678 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 679 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 680 681 /* 682 * Make the root node. 683 */ 684 awc.aw_sc = sc; 685 awc.aw_parent = NULL; 686 687 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 688 689 KASSERT(sc->sc_root == NULL); 690 KASSERT(awc.aw_parent != NULL); 691 692 sc->sc_root = awc.aw_parent; 693 694 /* 695 * Build the internal namespace. 696 */ 697 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 698 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 699 700 /* 701 * Scan the internal namespace. 702 */ 703 (void)acpi_pcidev_scan(sc->sc_root); 704 } 705 706 static void 707 acpi_config_tree(struct acpi_softc *sc) 708 { 709 /* 710 * Assign bus_dma resources 711 */ 712 acpi_config_dma(sc); 713 714 /* 715 * Configure all everything found "at acpi?". 716 */ 717 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 718 719 /* 720 * Update GPE information. 721 * 722 * Note that this must be called after 723 * all GPE handlers have been installed. 724 */ 725 (void)AcpiUpdateAllGpes(); 726 727 /* 728 * Defer rest of the configuration. 729 */ 730 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 731 } 732 733 // XXXNH? 734 static void 735 acpi_config_dma(struct acpi_softc *sc) 736 { 737 struct acpi_devnode *ad; 738 739 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 740 741 if (ad->ad_device != NULL) 742 continue; 743 744 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 745 continue; 746 747 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 748 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 749 } 750 } 751 752 static ACPI_STATUS 753 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 754 void *context, void **status) 755 { 756 struct acpi_walkcontext *awc = context; 757 struct acpi_softc *sc = awc->aw_sc; 758 struct acpi_devnode *ad; 759 ACPI_DEVICE_INFO *devinfo; 760 ACPI_OBJECT_TYPE type; 761 ACPI_STATUS rv; 762 763 rv = AcpiGetObjectInfo(handle, &devinfo); 764 765 if (ACPI_FAILURE(rv)) 766 return AE_OK; /* Do not terminate the walk. */ 767 768 type = devinfo->Type; 769 770 switch (type) { 771 772 case ACPI_TYPE_DEVICE: 773 acpi_activate_device(handle, &devinfo); 774 /* FALLTHROUGH */ 775 776 case ACPI_TYPE_PROCESSOR: 777 case ACPI_TYPE_THERMAL: 778 case ACPI_TYPE_POWER: 779 780 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 781 782 ad->ad_device = NULL; 783 ad->ad_notify = NULL; 784 ad->ad_pciinfo = NULL; 785 ad->ad_wakedev = NULL; 786 787 ad->ad_type = type; 788 ad->ad_handle = handle; 789 ad->ad_devinfo = devinfo; 790 791 ad->ad_root = sc->sc_dev; 792 ad->ad_parent = awc->aw_parent; 793 794 acpi_match_node_init(ad); 795 acpi_make_name(ad, devinfo->Name); 796 797 /* 798 * Identify wake GPEs from the _PRW. Note that 799 * AcpiUpdateAllGpes() must be called afterwards. 800 */ 801 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 802 acpi_wakedev_init(ad); 803 804 SIMPLEQ_INIT(&ad->ad_child_head); 805 SIMPLEQ_INSERT_TAIL(&sc->sc_head, ad, ad_list); 806 807 if (ad->ad_parent != NULL) { 808 809 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 810 ad, ad_child_list); 811 } 812 813 awc->aw_parent = ad; 814 break; 815 816 default: 817 ACPI_FREE(devinfo); 818 break; 819 } 820 821 return AE_OK; 822 } 823 824 static ACPI_STATUS 825 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 826 void *context, void **status) 827 { 828 struct acpi_walkcontext *awc = context; 829 830 KASSERT(awc != NULL); 831 KASSERT(awc->aw_parent != NULL); 832 833 if (handle == awc->aw_parent->ad_handle) 834 awc->aw_parent = awc->aw_parent->ad_parent; 835 836 return AE_OK; 837 } 838 839 static void 840 acpi_make_name(struct acpi_devnode *ad, uint32_t name) 841 { 842 ACPI_NAME_UNION *anu; 843 int clear, i; 844 845 anu = (ACPI_NAME_UNION *)&name; 846 ad->ad_name[4] = '\0'; 847 848 for (i = 3, clear = 0; i >= 0; i--) { 849 850 if (clear == 0 && anu->Ascii[i] == '_') 851 ad->ad_name[i] = '\0'; 852 else { 853 ad->ad_name[i] = anu->Ascii[i]; 854 clear = 1; 855 } 856 } 857 858 if (ad->ad_name[0] == '\0') 859 ad->ad_name[0] = '_'; 860 } 861 862 bus_dma_tag_t 863 acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 864 { 865 return sc->sc_dmat; 866 } 867 __weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 868 869 bus_dma_tag_t 870 acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 871 { 872 return sc->sc_dmat64; 873 } 874 __weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 875 876 pci_chipset_tag_t 877 acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 878 { 879 return NULL; 880 } 881 __weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 882 883 /* 884 * Device attachment. 885 */ 886 static int 887 acpi_rescan(device_t self, const char *ifattr, const int *locators) 888 { 889 struct acpi_softc *sc = device_private(self); 890 struct acpi_attach_args aa; 891 892 /* 893 * Try to attach hpet(4) first via a specific table. 894 */ 895 aa.aa_memt = sc->sc_memt; 896 897 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) { 898 sc->sc_hpet = config_found(sc->sc_dev, &aa, NULL, 899 CFARGS(.iattr = "acpihpetbus")); 900 } 901 902 /* 903 * A two-pass scan for acpinodebus. 904 */ 905 if (ifattr_match(ifattr, "acpinodebus")) { 906 acpi_rescan_early(sc); 907 acpi_rescan_nodes(sc); 908 } 909 910 /* 911 * Attach APM emulation and acpiwdrt(4). 912 */ 913 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 914 sc->sc_apmbus = config_found(sc->sc_dev, NULL, NULL, 915 CFARGS(.iattr = "acpiapmbus")); 916 } 917 918 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) { 919 sc->sc_wdrt = config_found(sc->sc_dev, NULL, NULL, 920 CFARGS(.iattr = "acpiwdrtbus")); 921 } 922 923 return 0; 924 } 925 926 static void 927 acpi_rescan_early(struct acpi_softc *sc) 928 { 929 struct acpi_attach_args aa; 930 struct acpi_devnode *ad; 931 932 /* 933 * First scan for devices such as acpiec(4) that 934 * should be always attached before anything else. 935 * We want these devices to attach regardless of 936 * the device status and other restrictions. 937 */ 938 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 939 940 if (ad->ad_device != NULL) 941 continue; 942 943 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 944 continue; 945 946 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 947 continue; 948 949 KASSERT(ad->ad_handle != NULL); 950 951 aa.aa_node = ad; 952 aa.aa_iot = sc->sc_iot; 953 aa.aa_memt = sc->sc_memt; 954 if (ad->ad_pciinfo != NULL) { 955 aa.aa_pc = ad->ad_pciinfo->ap_pc; 956 aa.aa_pciflags = sc->sc_pciflags; 957 } 958 aa.aa_ic = sc->sc_ic; 959 aa.aa_dmat = ad->ad_dmat; 960 aa.aa_dmat64 = ad->ad_dmat64; 961 962 ad->ad_device = config_found(sc->sc_dev, &aa, acpi_print, 963 CFARGS(.iattr = "acpinodebus", 964 .devhandle = devhandle_from_acpi(ad->ad_handle))); 965 } 966 } 967 968 static void 969 acpi_rescan_nodes(struct acpi_softc *sc) 970 { 971 const char * const hpet_ids[] = { "PNP0103", NULL }; 972 struct acpi_attach_args aa; 973 struct acpi_devnode *ad; 974 ACPI_DEVICE_INFO *di; 975 976 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 977 978 if (ad->ad_device != NULL) 979 continue; 980 981 /* 982 * There is a bug in ACPICA: it defines the type 983 * of the scopes incorrectly for its own reasons. 984 */ 985 if (acpi_is_scope(ad) != false) 986 continue; 987 988 di = ad->ad_devinfo; 989 990 /* 991 * We only attach devices which are present, enabled, and 992 * functioning properly. However, if a device is enabled, 993 * it is decoding resources and we should claim these, 994 * if possible. This requires changes to bus_space(9). 995 */ 996 if (di->Type == ACPI_TYPE_DEVICE && 997 !acpi_device_present(ad->ad_handle)) { 998 continue; 999 } 1000 1001 if (di->Type == ACPI_TYPE_POWER) 1002 continue; 1003 1004 if (di->Type == ACPI_TYPE_PROCESSOR) 1005 continue; 1006 1007 if (acpi_match_hid(di, acpi_early_ids) != 0) 1008 continue; 1009 1010 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 1011 continue; 1012 1013 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 1014 continue; 1015 1016 KASSERT(ad->ad_handle != NULL); 1017 1018 aa.aa_node = ad; 1019 aa.aa_iot = sc->sc_iot; 1020 aa.aa_memt = sc->sc_memt; 1021 if (ad->ad_pciinfo != NULL) { 1022 aa.aa_pc = ad->ad_pciinfo->ap_pc; 1023 aa.aa_pciflags = sc->sc_pciflags; 1024 } 1025 aa.aa_ic = sc->sc_ic; 1026 aa.aa_dmat = ad->ad_dmat; 1027 aa.aa_dmat64 = ad->ad_dmat64; 1028 1029 ad->ad_device = config_found(sc->sc_dev, &aa, acpi_print, 1030 CFARGS(.iattr = "acpinodebus", 1031 .devhandle = devhandle_from_acpi(ad->ad_handle))); 1032 } 1033 } 1034 1035 static void 1036 acpi_rescan_capabilities(device_t self) 1037 { 1038 struct acpi_softc *sc = device_private(self); 1039 struct acpi_devnode *ad; 1040 ACPI_HANDLE tmp; 1041 ACPI_STATUS rv; 1042 1043 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 1044 1045 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1046 continue; 1047 1048 /* 1049 * Scan power resource capabilities. 1050 * 1051 * If any power states are supported, 1052 * at least _PR0 and _PR3 must be present. 1053 */ 1054 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1055 1056 if (ACPI_SUCCESS(rv)) { 1057 ad->ad_flags |= ACPI_DEVICE_POWER; 1058 acpi_power_add(ad); 1059 } 1060 1061 /* 1062 * Scan wake-up capabilities. 1063 */ 1064 if (ad->ad_wakedev != NULL) { 1065 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1066 acpi_wakedev_add(ad); 1067 } 1068 1069 /* 1070 * Scan docking stations. 1071 */ 1072 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1073 1074 if (ACPI_SUCCESS(rv)) 1075 ad->ad_flags |= ACPI_DEVICE_DOCK; 1076 1077 /* 1078 * Scan devices that are ejectable. 1079 */ 1080 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1081 1082 if (ACPI_SUCCESS(rv)) 1083 ad->ad_flags |= ACPI_DEVICE_EJECT; 1084 } 1085 } 1086 1087 static int 1088 acpi_print(void *aux, const char *pnp) 1089 { 1090 struct acpi_attach_args *aa = aux; 1091 struct acpi_devnode *ad; 1092 const char *hid, *uid; 1093 ACPI_DEVICE_INFO *di; 1094 1095 ad = aa->aa_node; 1096 di = ad->ad_devinfo; 1097 1098 hid = di->HardwareId.String; 1099 uid = di->UniqueId.String; 1100 1101 if (pnp != NULL) { 1102 1103 if (di->Type != ACPI_TYPE_DEVICE) { 1104 1105 aprint_normal("%s (ACPI Object Type '%s') at %s", 1106 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1107 1108 return UNCONF; 1109 } 1110 1111 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1112 return 0; 1113 1114 aprint_normal("%s (%s) ", ad->ad_name, hid); 1115 acpi_print_dev(hid); 1116 aprint_normal("at %s", pnp); 1117 1118 return UNCONF; 1119 } 1120 1121 aprint_normal(" (%s", ad->ad_name); 1122 1123 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1124 1125 aprint_normal(", %s", hid); 1126 1127 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1128 1129 if (uid[0] == '\0') 1130 uid = "<null>"; 1131 1132 aprint_normal("-%s", uid); 1133 } 1134 } 1135 1136 aprint_normal(")"); 1137 1138 return UNCONF; 1139 } 1140 1141 /* 1142 * Notify. 1143 */ 1144 static void 1145 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1146 { 1147 struct acpi_softc *sc = acpi_softc; 1148 struct acpi_devnode *ad; 1149 1150 KASSERT(sc != NULL); 1151 KASSERT(aux == NULL); 1152 KASSERT(acpi_active != 0); 1153 1154 if (acpi_suspended != 0) 1155 return; 1156 1157 /* 1158 * System: 0x00 - 0x7F. 1159 * Device: 0x80 - 0xFF. 1160 */ 1161 switch (event) { 1162 1163 case ACPI_NOTIFY_BUS_CHECK: 1164 case ACPI_NOTIFY_DEVICE_CHECK: 1165 case ACPI_NOTIFY_DEVICE_WAKE: 1166 case ACPI_NOTIFY_EJECT_REQUEST: 1167 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1168 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1169 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1170 case ACPI_NOTIFY_POWER_FAULT: 1171 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1172 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1173 case ACPI_NOTIFY_RESERVED: 1174 case ACPI_NOTIFY_LOCALITY_UPDATE: 1175 break; 1176 } 1177 1178 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1179 "%s (%p)\n", event, acpi_name(handle), handle)); 1180 1181 /* 1182 * We deliver notifications only to drivers 1183 * that have been successfully attached and 1184 * that have registered a handler with us. 1185 * The opaque pointer is always the device_t. 1186 */ 1187 SIMPLEQ_FOREACH(ad, &sc->sc_head, ad_list) { 1188 1189 if (ad->ad_device == NULL) 1190 continue; 1191 1192 if (ad->ad_notify == NULL) 1193 continue; 1194 1195 if (ad->ad_handle != handle) 1196 continue; 1197 1198 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1199 1200 return; 1201 } 1202 1203 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1204 "for %s (%p)\n", event, acpi_name(handle), handle); 1205 } 1206 1207 bool 1208 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1209 { 1210 struct acpi_softc *sc = acpi_softc; 1211 1212 KASSERT(sc != NULL); 1213 KASSERT(acpi_active != 0); 1214 1215 if (acpi_suspended != 0) 1216 goto fail; 1217 1218 if (ad == NULL || notify == NULL) 1219 goto fail; 1220 1221 ad->ad_notify = notify; 1222 1223 return true; 1224 1225 fail: 1226 aprint_error_dev(sc->sc_dev, "failed to register notify " 1227 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1228 1229 return false; 1230 } 1231 1232 void 1233 acpi_deregister_notify(struct acpi_devnode *ad) 1234 { 1235 1236 ad->ad_notify = NULL; 1237 } 1238 1239 /* 1240 * Fixed buttons. 1241 */ 1242 static void 1243 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1244 { 1245 struct sysmon_pswitch *smpsw; 1246 ACPI_STATUS rv; 1247 int type; 1248 1249 switch (event) { 1250 1251 case ACPI_EVENT_POWER_BUTTON: 1252 1253 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1254 return; 1255 1256 type = PSWITCH_TYPE_POWER; 1257 smpsw = &sc->sc_smpsw_power; 1258 break; 1259 1260 case ACPI_EVENT_SLEEP_BUTTON: 1261 1262 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1263 return; 1264 1265 type = PSWITCH_TYPE_SLEEP; 1266 smpsw = &sc->sc_smpsw_sleep; 1267 break; 1268 1269 default: 1270 rv = AE_TYPE; 1271 goto fail; 1272 } 1273 1274 smpsw->smpsw_type = type; 1275 smpsw->smpsw_name = device_xname(sc->sc_dev); 1276 1277 if (sysmon_pswitch_register(smpsw) != 0) { 1278 rv = AE_ERROR; 1279 goto fail; 1280 } 1281 1282 AcpiClearEvent(event); 1283 1284 rv = AcpiInstallFixedEventHandler(event, 1285 acpi_fixed_button_handler, smpsw); 1286 1287 if (ACPI_FAILURE(rv)) { 1288 sysmon_pswitch_unregister(smpsw); 1289 goto fail; 1290 } 1291 1292 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1293 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1294 1295 return; 1296 1297 fail: 1298 aprint_error_dev(sc->sc_dev, "failed to register " 1299 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1300 } 1301 1302 static void 1303 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1304 { 1305 struct sysmon_pswitch *smpsw; 1306 ACPI_STATUS rv; 1307 1308 switch (event) { 1309 1310 case ACPI_EVENT_POWER_BUTTON: 1311 smpsw = &sc->sc_smpsw_power; 1312 1313 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1314 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1315 return; 1316 } 1317 1318 break; 1319 1320 case ACPI_EVENT_SLEEP_BUTTON: 1321 smpsw = &sc->sc_smpsw_sleep; 1322 1323 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1324 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1325 return; 1326 } 1327 1328 break; 1329 1330 default: 1331 rv = AE_TYPE; 1332 goto fail; 1333 } 1334 1335 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1336 1337 if (ACPI_SUCCESS(rv)) { 1338 sysmon_pswitch_unregister(smpsw); 1339 return; 1340 } 1341 1342 fail: 1343 aprint_error_dev(sc->sc_dev, "failed to deregister " 1344 "fixed event: %s\n", AcpiFormatException(rv)); 1345 } 1346 1347 static uint32_t 1348 acpi_fixed_button_handler(void *context) 1349 { 1350 static const int handler = OSL_NOTIFY_HANDLER; 1351 struct sysmon_pswitch *smpsw = context; 1352 1353 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1354 1355 return ACPI_INTERRUPT_HANDLED; 1356 } 1357 1358 static void 1359 acpi_fixed_button_pressed(void *context) 1360 { 1361 struct sysmon_pswitch *smpsw = context; 1362 1363 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1364 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1365 "power" : "sleep")); 1366 1367 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1368 } 1369 1370 /* 1371 * Sleep. 1372 */ 1373 static void 1374 acpi_sleep_init(struct acpi_softc *sc) 1375 { 1376 uint8_t a, b, i; 1377 ACPI_STATUS rv; 1378 1379 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1380 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1381 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1382 1383 /* 1384 * Evaluate supported sleep states. 1385 */ 1386 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1387 1388 rv = AcpiGetSleepTypeData(i, &a, &b); 1389 1390 if (ACPI_SUCCESS(rv)) 1391 sc->sc_sleepstates |= __BIT(i); 1392 } 1393 } 1394 1395 /* 1396 * Must be called with interrupts enabled. 1397 */ 1398 void 1399 acpi_enter_sleep_state(int state) 1400 { 1401 struct acpi_softc *sc = acpi_softc; 1402 ACPI_STATUS rv; 1403 1404 if (acpi_softc == NULL) 1405 return; 1406 1407 if (state == sc->sc_sleepstate) 1408 return; 1409 1410 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1411 return; 1412 1413 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1414 1415 switch (state) { 1416 1417 case ACPI_STATE_S0: 1418 sc->sc_sleepstate = ACPI_STATE_S0; 1419 return; 1420 1421 case ACPI_STATE_S1: 1422 case ACPI_STATE_S2: 1423 case ACPI_STATE_S3: 1424 case ACPI_STATE_S4: 1425 1426 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1427 aprint_error_dev(sc->sc_dev, "sleep state " 1428 "S%d is not available\n", state); 1429 return; 1430 } 1431 1432 /* 1433 * Evaluate the _TTS method. This should be done before 1434 * pmf_system_suspend(9) and the evaluation of _PTS. 1435 * We should also re-evaluate this once we return to 1436 * S0 or if we abort the sleep state transition in the 1437 * middle (see ACPI 3.0, section 7.3.6). In reality, 1438 * however, the _TTS method is seldom seen in the field. 1439 */ 1440 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1441 1442 if (ACPI_SUCCESS(rv)) 1443 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1444 1445 if (state != ACPI_STATE_S1 && 1446 pmf_system_suspend(PMF_Q_NONE) != true) { 1447 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1448 break; 1449 } 1450 1451 /* 1452 * This will evaluate the _PTS and _SST methods, 1453 * but unlike the documentation claims, not _GTS, 1454 * which is evaluated in AcpiEnterSleepState(). 1455 * This must be called with interrupts enabled. 1456 */ 1457 rv = AcpiEnterSleepStatePrep(state); 1458 1459 if (ACPI_FAILURE(rv)) { 1460 aprint_error_dev(sc->sc_dev, "failed to prepare " 1461 "S%d: %s\n", state, AcpiFormatException(rv)); 1462 break; 1463 } 1464 1465 /* 1466 * After the _PTS method has been evaluated, we can 1467 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1468 */ 1469 acpi_wakedev_commit(sc, state); 1470 1471 sc->sc_sleepstate = state; 1472 1473 if (state == ACPI_STATE_S1) { 1474 1475 /* 1476 * Before the transition to S1, CPU caches 1477 * must be flushed (see ACPI 4.0, 7.3.4.2). 1478 * 1479 * Note that interrupts must be off before 1480 * calling AcpiEnterSleepState(). Conversely, 1481 * AcpiLeaveSleepState() should always be 1482 * called with interrupts enabled. 1483 */ 1484 acpi_md_OsDisableInterrupt(); 1485 1486 ACPI_FLUSH_CPU_CACHE(); 1487 rv = AcpiEnterSleepState(state); 1488 1489 if (ACPI_FAILURE(rv)) 1490 aprint_error_dev(sc->sc_dev, "failed to " 1491 "enter S1: %s\n", AcpiFormatException(rv)); 1492 1493 /* 1494 * Clear fixed events and disable all GPEs before 1495 * interrupts are enabled. 1496 */ 1497 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1498 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1499 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1500 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1501 AcpiClearEvent(ACPI_EVENT_RTC); 1502 #if (!ACPI_REDUCED_HARDWARE) 1503 AcpiHwDisableAllGpes(); 1504 #endif 1505 1506 acpi_md_OsEnableInterrupt(); 1507 rv = AcpiLeaveSleepState(state); 1508 1509 } else { 1510 1511 (void)acpi_md_sleep(state); 1512 1513 if (state == ACPI_STATE_S4) 1514 AcpiEnable(); 1515 1516 (void)pmf_system_bus_resume(PMF_Q_NONE); 1517 (void)AcpiLeaveSleepState(state); 1518 (void)AcpiSetFirmwareWakingVector(0, 0); 1519 (void)pmf_system_resume(PMF_Q_NONE); 1520 } 1521 1522 /* 1523 * No wake GPEs should be enabled at runtime. 1524 */ 1525 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1526 break; 1527 1528 case ACPI_STATE_S5: 1529 1530 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1531 1532 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1533 1534 if (ACPI_FAILURE(rv)) { 1535 aprint_error_dev(sc->sc_dev, "failed to prepare " 1536 "S%d: %s\n", state, AcpiFormatException(rv)); 1537 break; 1538 } 1539 1540 (void)AcpiDisableAllGpes(); 1541 1542 DELAY(1000000); 1543 1544 sc->sc_sleepstate = state; 1545 acpi_md_OsDisableInterrupt(); 1546 1547 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1548 1549 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1550 1551 break; 1552 } 1553 1554 sc->sc_sleepstate = ACPI_STATE_S0; 1555 1556 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1557 } 1558 1559 /* 1560 * Sysctl. 1561 */ 1562 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1563 { 1564 const struct sysctlnode *rnode, *snode; 1565 int err; 1566 1567 err = sysctl_createv(clog, 0, NULL, &rnode, 1568 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1569 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1570 NULL, 0, NULL, 0, 1571 CTL_HW, CTL_CREATE, CTL_EOL); 1572 1573 if (err != 0) 1574 return; 1575 1576 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1577 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1578 "root", SYSCTL_DESCR("ACPI root pointer"), 1579 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1580 CTL_CREATE, CTL_EOL); 1581 1582 err = sysctl_createv(clog, 0, &rnode, &snode, 1583 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1584 "sleep", SYSCTL_DESCR("ACPI sleep"), 1585 NULL, 0, NULL, 0, 1586 CTL_CREATE, CTL_EOL); 1587 1588 if (err != 0) 1589 return; 1590 1591 (void)sysctl_createv(NULL, 0, &snode, NULL, 1592 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1593 "state", SYSCTL_DESCR("System sleep state"), 1594 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1595 CTL_CREATE, CTL_EOL); 1596 1597 (void)sysctl_createv(NULL, 0, &snode, NULL, 1598 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1599 "states", SYSCTL_DESCR("Supported sleep states"), 1600 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1601 CTL_CREATE, CTL_EOL); 1602 1603 err = sysctl_createv(clog, 0, &rnode, &rnode, 1604 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1605 "stat", SYSCTL_DESCR("ACPI statistics"), 1606 NULL, 0, NULL, 0, 1607 CTL_CREATE, CTL_EOL); 1608 1609 if (err != 0) 1610 return; 1611 1612 (void)sysctl_createv(clog, 0, &rnode, NULL, 1613 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1614 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1615 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1616 CTL_CREATE, CTL_EOL); 1617 1618 (void)sysctl_createv(clog, 0, &rnode, NULL, 1619 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1620 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1621 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1622 CTL_CREATE, CTL_EOL); 1623 1624 (void)sysctl_createv(clog, 0, &rnode, NULL, 1625 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1626 "fixed", SYSCTL_DESCR("Number of fixed events"), 1627 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1628 CTL_CREATE, CTL_EOL); 1629 1630 (void)sysctl_createv(clog, 0, &rnode, NULL, 1631 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1632 "method", SYSCTL_DESCR("Number of methods executed"), 1633 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1634 CTL_CREATE, CTL_EOL); 1635 1636 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1637 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1638 } 1639 1640 static int 1641 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1642 { 1643 struct sysctlnode node; 1644 uint64_t t; 1645 int err, i; 1646 1647 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1648 t += AcpiFixedEventCount[i]; 1649 1650 node = *rnode; 1651 node.sysctl_data = &t; 1652 1653 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1654 1655 if (err || newp == NULL) 1656 return err; 1657 1658 return 0; 1659 } 1660 1661 static int 1662 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1663 { 1664 struct acpi_softc *sc = acpi_softc; 1665 struct sysctlnode node; 1666 int err, t; 1667 1668 if (acpi_softc == NULL) 1669 return ENOSYS; 1670 1671 node = *rnode; 1672 t = sc->sc_sleepstate; 1673 node.sysctl_data = &t; 1674 1675 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1676 1677 if (err || newp == NULL) 1678 return err; 1679 1680 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1681 return EINVAL; 1682 1683 acpi_enter_sleep_state(t); 1684 1685 return 0; 1686 } 1687 1688 static int 1689 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1690 { 1691 struct acpi_softc *sc = acpi_softc; 1692 struct sysctlnode node; 1693 char t[3 * 6 + 1]; 1694 int err; 1695 1696 if (acpi_softc == NULL) 1697 return ENOSYS; 1698 1699 (void)memset(t, '\0', sizeof(t)); 1700 1701 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1702 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1703 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1704 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1705 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1706 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1707 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1708 1709 node = *rnode; 1710 node.sysctl_data = &t; 1711 1712 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1713 1714 if (err || newp == NULL) 1715 return err; 1716 1717 return 0; 1718 } 1719 1720 /* 1721 * Tables. 1722 */ 1723 ACPI_PHYSICAL_ADDRESS 1724 acpi_OsGetRootPointer(void) 1725 { 1726 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1727 1728 /* 1729 * We let MD code handle this since there are multiple ways to do it: 1730 * 1731 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1732 * 1733 * IA-64: Use the EFI. 1734 */ 1735 PhysicalAddress = acpi_md_OsGetRootPointer(); 1736 1737 if (acpi_root_pointer == 0) 1738 acpi_root_pointer = PhysicalAddress; 1739 1740 return PhysicalAddress; 1741 } 1742 1743 static ACPI_TABLE_HEADER * 1744 acpi_map_rsdt(void) 1745 { 1746 ACPI_PHYSICAL_ADDRESS paddr; 1747 ACPI_TABLE_RSDP *rsdp; 1748 1749 paddr = AcpiOsGetRootPointer(); 1750 1751 if (paddr == 0) 1752 return NULL; 1753 1754 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1755 1756 if (rsdp == NULL) 1757 return NULL; 1758 1759 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1760 paddr = rsdp->XsdtPhysicalAddress; 1761 else 1762 paddr = rsdp->RsdtPhysicalAddress; 1763 1764 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1765 1766 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1767 } 1768 1769 /* 1770 * XXX: Refactor to be a generic function that unmaps tables. 1771 */ 1772 static void 1773 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1774 { 1775 1776 if (rsdt == NULL) 1777 return; 1778 1779 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1780 } 1781 1782 /* 1783 * XXX: Refactor to be a generic function that maps tables. 1784 */ 1785 ACPI_STATUS 1786 acpi_madt_map(void) 1787 { 1788 ACPI_STATUS rv; 1789 1790 if (madt_header != NULL) 1791 return AE_ALREADY_EXISTS; 1792 1793 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1794 1795 if (ACPI_FAILURE(rv)) 1796 return rv; 1797 1798 return AE_OK; 1799 } 1800 1801 void 1802 acpi_madt_unmap(void) 1803 { 1804 madt_header = NULL; 1805 } 1806 1807 ACPI_STATUS 1808 acpi_gtdt_map(void) 1809 { 1810 ACPI_STATUS rv; 1811 1812 if (gtdt_header != NULL) 1813 return AE_ALREADY_EXISTS; 1814 1815 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1816 1817 if (ACPI_FAILURE(rv)) 1818 return rv; 1819 1820 return AE_OK; 1821 } 1822 1823 void 1824 acpi_gtdt_unmap(void) 1825 { 1826 gtdt_header = NULL; 1827 } 1828 1829 /* 1830 * XXX: Refactor to be a generic function that walks tables. 1831 */ 1832 void 1833 acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1834 { 1835 ACPI_SUBTABLE_HEADER *hdrp; 1836 char *madtend, *where; 1837 1838 madtend = (char *)madt_header + madt_header->Length; 1839 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1840 1841 while (where < madtend) { 1842 1843 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1844 1845 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1846 break; 1847 1848 where += hdrp->Length; 1849 } 1850 } 1851 1852 void 1853 acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1854 { 1855 ACPI_GTDT_HEADER *hdrp; 1856 char *gtdtend, *where; 1857 1858 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1859 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1860 1861 while (where < gtdtend) { 1862 1863 hdrp = (ACPI_GTDT_HEADER *)where; 1864 1865 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1866 break; 1867 1868 where += hdrp->Length; 1869 } 1870 } 1871 1872 /* 1873 * Miscellaneous. 1874 */ 1875 static bool 1876 acpi_is_scope(struct acpi_devnode *ad) 1877 { 1878 int i; 1879 1880 /* 1881 * Return true if the node is a root scope. 1882 */ 1883 if (ad->ad_parent == NULL) 1884 return false; 1885 1886 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1887 return false; 1888 1889 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1890 1891 if (acpi_scopes[i] == NULL) 1892 continue; 1893 1894 if (ad->ad_handle == acpi_scopes[i]) 1895 return true; 1896 } 1897 1898 return false; 1899 } 1900 1901 bool 1902 acpi_device_present(ACPI_HANDLE handle) 1903 { 1904 ACPI_STATUS rv; 1905 ACPI_INTEGER sta; 1906 1907 rv = acpi_eval_integer(handle, "_STA", &sta); 1908 1909 if (ACPI_FAILURE(rv)) { 1910 /* No _STA method -> must be there */ 1911 return rv == AE_NOT_FOUND; 1912 } 1913 1914 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1915 } 1916 1917 /* 1918 * ACPIVERBOSE. 1919 */ 1920 void 1921 acpi_load_verbose(void) 1922 { 1923 1924 if (acpi_verbose_loaded == 0) 1925 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1926 } 1927 1928 void 1929 acpi_print_verbose_stub(struct acpi_softc *sc) 1930 { 1931 1932 acpi_load_verbose(); 1933 1934 if (acpi_verbose_loaded != 0) 1935 acpi_print_verbose(sc); 1936 } 1937 1938 void 1939 acpi_print_dev_stub(const char *pnpstr) 1940 { 1941 1942 acpi_load_verbose(); 1943 1944 if (acpi_verbose_loaded != 0) 1945 acpi_print_dev(pnpstr); 1946 } 1947 1948 MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1949 1950 /* 1951 * ACPI_ACTIVATE_DEV. 1952 */ 1953 static void 1954 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1955 { 1956 1957 #ifndef ACPI_ACTIVATE_DEV 1958 return; 1959 } 1960 #else 1961 static const int valid = ACPI_VALID_HID; 1962 ACPI_DEVICE_INFO *newdi; 1963 ACPI_STATUS rv; 1964 1965 1966 /* 1967 * If the device is valid and present, 1968 * but not enabled, try to activate it. 1969 */ 1970 if (((*di)->Valid & valid) != valid) 1971 return; 1972 1973 if (!acpi_device_present(handle)) 1974 return; 1975 1976 rv = acpi_allocate_resources(handle); 1977 1978 if (ACPI_FAILURE(rv)) 1979 goto fail; 1980 1981 rv = AcpiGetObjectInfo(handle, &newdi); 1982 1983 if (ACPI_FAILURE(rv)) 1984 goto fail; 1985 1986 ACPI_FREE(*di); 1987 *di = newdi; 1988 1989 aprint_verbose_dev(acpi_softc->sc_dev, 1990 "%s activated\n", (*di)->HardwareId.String); 1991 1992 return; 1993 1994 fail: 1995 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1996 "activate %s\n", (*di)->HardwareId.String); 1997 } 1998 1999 /* 2000 * XXX: This very incomplete. 2001 */ 2002 ACPI_STATUS 2003 acpi_allocate_resources(ACPI_HANDLE handle) 2004 { 2005 ACPI_BUFFER bufp, bufc, bufn; 2006 ACPI_RESOURCE *resp, *resc, *resn; 2007 ACPI_RESOURCE_IRQ *irq; 2008 #if 0 2009 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 2010 #endif 2011 ACPI_STATUS rv; 2012 uint delta; 2013 2014 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 2015 if (ACPI_FAILURE(rv)) 2016 goto out; 2017 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 2018 if (ACPI_FAILURE(rv)) { 2019 goto out1; 2020 } 2021 2022 bufn.Length = 1000; 2023 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 2024 resp = bufp.Pointer; 2025 resc = bufc.Pointer; 2026 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 2027 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2028 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 2029 resp = ACPI_NEXT_RESOURCE(resp); 2030 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 2031 break; 2032 /* Found identical Id */ 2033 resn->Type = resc->Type; 2034 switch (resc->Type) { 2035 case ACPI_RESOURCE_TYPE_IRQ: 2036 memcpy(&resn->Data, &resp->Data, 2037 sizeof(ACPI_RESOURCE_IRQ)); 2038 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2039 irq->Interrupts[0] = 2040 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2041 Interrupts[irq->InterruptCount-1]; 2042 irq->InterruptCount = 1; 2043 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2044 break; 2045 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2046 memcpy(&resn->Data, &resp->Data, 2047 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2048 #if 0 2049 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2050 /* 2051 * XXX: Not duplicating the interrupt logic above 2052 * because its not clear what it accomplishes. 2053 */ 2054 xirq->Interrupts[0] = 2055 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2056 Interrupts[irq->NumberOfInterrupts-1]; 2057 xirq->NumberOfInterrupts = 1; 2058 #endif 2059 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2060 break; 2061 case ACPI_RESOURCE_TYPE_IO: 2062 memcpy(&resn->Data, &resp->Data, 2063 sizeof(ACPI_RESOURCE_IO)); 2064 resn->Length = resp->Length; 2065 break; 2066 default: 2067 aprint_error_dev(acpi_softc->sc_dev, 2068 "%s: invalid type %u\n", __func__, resc->Type); 2069 rv = AE_BAD_DATA; 2070 goto out2; 2071 } 2072 resc = ACPI_NEXT_RESOURCE(resc); 2073 resn = ACPI_NEXT_RESOURCE(resn); 2074 resp = ACPI_NEXT_RESOURCE(resp); 2075 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2076 if (delta >= 2077 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2078 bufn.Length *= 2; 2079 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2080 M_ACPI, M_WAITOK); 2081 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2082 delta); 2083 } 2084 } 2085 2086 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2087 aprint_error_dev(acpi_softc->sc_dev, 2088 "%s: resc not exhausted\n", __func__); 2089 rv = AE_BAD_DATA; 2090 goto out3; 2091 } 2092 2093 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2094 rv = AcpiSetCurrentResources(handle, &bufn); 2095 2096 if (ACPI_FAILURE(rv)) 2097 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2098 "resources: %s\n", __func__, AcpiFormatException(rv)); 2099 2100 out3: 2101 free(bufn.Pointer, M_ACPI); 2102 out2: 2103 ACPI_FREE(bufc.Pointer); 2104 out1: 2105 ACPI_FREE(bufp.Pointer); 2106 out: 2107 return rv; 2108 } 2109 2110 #endif /* ACPI_ACTIVATE_DEV */ 2111