1 /* $NetBSD: acpi.c,v 1.286 2020/11/08 14:16:59 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum of By Noon Software, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 2003 Wasabi Systems, Inc. 34 * All rights reserved. 35 * 36 * Written by Frank van der Linden for Wasabi Systems, Inc. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed for the NetBSD Project by 49 * Wasabi Systems, Inc. 50 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 51 * or promote products derived from this software without specific prior 52 * written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 56 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 57 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 58 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 59 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 60 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 61 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 62 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 63 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 64 * POSSIBILITY OF SUCH DAMAGE. 65 */ 66 67 /* 68 * Copyright 2001, 2003 Wasabi Systems, Inc. 69 * All rights reserved. 70 * 71 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 72 * 73 * Redistribution and use in source and binary forms, with or without 74 * modification, are permitted provided that the following conditions 75 * are met: 76 * 1. Redistributions of source code must retain the above copyright 77 * notice, this list of conditions and the following disclaimer. 78 * 2. Redistributions in binary form must reproduce the above copyright 79 * notice, this list of conditions and the following disclaimer in the 80 * documentation and/or other materials provided with the distribution. 81 * 3. All advertising materials mentioning features or use of this software 82 * must display the following acknowledgement: 83 * This product includes software developed for the NetBSD Project by 84 * Wasabi Systems, Inc. 85 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 86 * or promote products derived from this software without specific prior 87 * written permission. 88 * 89 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 90 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 91 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 92 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 93 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 94 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 95 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 96 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 97 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 98 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 99 * POSSIBILITY OF SUCH DAMAGE. 100 */ 101 102 #include <sys/cdefs.h> 103 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.286 2020/11/08 14:16:59 jmcneill Exp $"); 104 105 #include "pci.h" 106 #include "opt_acpi.h" 107 #include "opt_pcifixup.h" 108 109 #include <sys/param.h> 110 #include <sys/device.h> 111 #include <sys/kernel.h> 112 #include <sys/kmem.h> 113 #include <sys/malloc.h> 114 #include <sys/module.h> 115 #include <sys/mutex.h> 116 #include <sys/sysctl.h> 117 #include <sys/systm.h> 118 #include <sys/timetc.h> 119 120 #include <dev/acpi/acpireg.h> 121 #include <dev/acpi/acpivar.h> 122 #include <dev/acpi/acpi_mcfg.h> 123 #include <dev/acpi/acpi_osd.h> 124 #include <dev/acpi/acpi_pci.h> 125 #include <dev/acpi/acpi_power.h> 126 #include <dev/acpi/acpi_timer.h> 127 #include <dev/acpi/acpi_wakedev.h> 128 129 #include <machine/acpi_machdep.h> 130 131 #include "ioconf.h" 132 133 #define _COMPONENT ACPI_BUS_COMPONENT 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 "ACPI0007", /* ACPI CPUs are attached via MADT GICC subtables */ 182 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 183 #endif 184 NULL 185 }; 186 187 /* 188 * Devices that should be attached early. 189 */ 190 static const char * const acpi_early_ids[] = { 191 "PNP0C09", /* acpiec(4) */ 192 NULL 193 }; 194 195 static int acpi_match(device_t, cfdata_t, void *); 196 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 197 static void acpi_attach(device_t, device_t, void *); 198 static int acpi_detach(device_t, int); 199 static void acpi_childdet(device_t, device_t); 200 static bool acpi_suspend(device_t, const pmf_qual_t *); 201 static bool acpi_resume(device_t, const pmf_qual_t *); 202 203 static void acpi_build_tree(struct acpi_softc *); 204 static void acpi_config_tree(struct acpi_softc *); 205 static void acpi_config_dma(struct acpi_softc *); 206 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 207 void *, void **); 208 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 209 void *, void **); 210 static void acpi_make_name(struct acpi_devnode *, uint32_t); 211 212 static int acpi_rescan(device_t, const char *, const int *); 213 static void acpi_rescan_early(struct acpi_softc *); 214 static void acpi_rescan_nodes(struct acpi_softc *); 215 static void acpi_rescan_capabilities(device_t); 216 static int acpi_print(void *aux, const char *); 217 218 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 219 220 static void acpi_register_fixed_button(struct acpi_softc *, int); 221 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 222 static uint32_t acpi_fixed_button_handler(void *); 223 static void acpi_fixed_button_pressed(void *); 224 225 static void acpi_sleep_init(struct acpi_softc *); 226 227 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 228 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 229 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 230 231 static bool acpi_is_scope(struct acpi_devnode *); 232 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 233 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 234 235 void acpi_print_verbose_stub(struct acpi_softc *); 236 void acpi_print_dev_stub(const char *); 237 238 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 239 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 240 241 void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 242 void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 243 244 bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 245 bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 246 pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 247 248 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 249 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 250 251 /* 252 * Probe for ACPI support. 253 * 254 * This is called by the machine-dependent ACPI front-end. 255 * Note: this is not an autoconfiguration interface function. 256 */ 257 int 258 acpi_probe(void) 259 { 260 ACPI_TABLE_HEADER *rsdt; 261 ACPI_STATUS rv; 262 int quirks; 263 264 if (acpi_softc != NULL) 265 panic("%s: already probed", __func__); 266 267 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 268 269 /* 270 * Start up ACPICA. 271 */ 272 AcpiGbl_EnableInterpreterSlack = true; 273 274 rv = AcpiInitializeSubsystem(); 275 276 if (ACPI_FAILURE(rv)) { 277 aprint_error("%s: failed to initialize subsystem\n", __func__); 278 return 0; 279 } 280 281 /* 282 * Allocate space for RSDT/XSDT and DSDT, 283 * but allow resizing if more tables exist. 284 */ 285 rv = AcpiInitializeTables(NULL, 2, true); 286 287 if (ACPI_FAILURE(rv)) { 288 aprint_error("%s: failed to initialize tables\n", __func__); 289 goto fail; 290 } 291 292 rv = AcpiLoadTables(); 293 294 if (ACPI_FAILURE(rv)) { 295 aprint_error("%s: failed to load tables\n", __func__); 296 goto fail; 297 } 298 299 rsdt = acpi_map_rsdt(); 300 301 if (rsdt == NULL) { 302 aprint_error("%s: failed to map RSDT\n", __func__); 303 goto fail; 304 } 305 306 quirks = acpi_find_quirks(); 307 308 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { 309 310 aprint_normal("ACPI: BIOS is listed as broken:\n"); 311 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 312 "AslId <%4.4s,%08x>\n", rsdt->OemId, rsdt->OemTableId, 313 rsdt->OemRevision, rsdt->AslCompilerId, 314 rsdt->AslCompilerRevision); 315 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 316 317 acpi_unmap_rsdt(rsdt); 318 goto fail; 319 } 320 321 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { 322 323 aprint_normal("ACPI: BIOS is too old (%s). " 324 "Set acpi_force_load to use.\n", 325 pmf_get_platform("bios-date")); 326 327 acpi_unmap_rsdt(rsdt); 328 goto fail; 329 } 330 331 acpi_unmap_rsdt(rsdt); 332 333 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 334 335 if (ACPI_FAILURE(rv)) { 336 aprint_error("%s: failed to enable subsystem\n", __func__); 337 goto fail; 338 } 339 340 return 1; 341 342 fail: 343 (void)AcpiTerminate(); 344 345 return 0; 346 } 347 348 void 349 acpi_disable(void) 350 { 351 352 if (acpi_softc == NULL) 353 return; 354 355 KASSERT(acpi_active != 0); 356 357 if (AcpiGbl_FADT.SmiCommand != 0) 358 AcpiDisable(); 359 } 360 361 int 362 acpi_check(device_t parent, const char *ifattr) 363 { 364 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 365 } 366 367 int 368 acpi_reset(void) 369 { 370 struct acpi_softc *sc = acpi_softc; 371 ACPI_GENERIC_ADDRESS *ResetReg; 372 ACPI_PCI_ID PciId; 373 ACPI_STATUS status; 374 375 if (sc == NULL) 376 return ENXIO; 377 378 ResetReg = &AcpiGbl_FADT.ResetRegister; 379 380 /* Check if the reset register is supported */ 381 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 382 !ResetReg->Address) { 383 return ENOENT; 384 } 385 386 switch (ResetReg->SpaceId) { 387 case ACPI_ADR_SPACE_PCI_CONFIG: 388 PciId.Segment = PciId.Bus = 0; 389 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 390 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 391 status = AcpiOsWritePciConfiguration(&PciId, 392 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 393 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 394 break; 395 case ACPI_ADR_SPACE_SYSTEM_IO: 396 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 397 status = AcpiReset(); 398 break; 399 default: 400 status = AE_TYPE; 401 break; 402 } 403 404 return ACPI_FAILURE(status) ? EIO : 0; 405 } 406 407 /* 408 * Autoconfiguration. 409 */ 410 static int 411 acpi_match(device_t parent, cfdata_t match, void *aux) 412 { 413 /* 414 * XXX: Nada; MD code has called acpi_probe(). 415 */ 416 return 1; 417 } 418 419 static int 420 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 421 { 422 struct cfattach *ca; 423 424 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 425 426 return (ca == &acpi_ca); 427 } 428 429 static void 430 acpi_attach(device_t parent, device_t self, void *aux) 431 { 432 struct acpi_softc *sc = device_private(self); 433 struct acpibus_attach_args *aa = aux; 434 ACPI_TABLE_HEADER *rsdt; 435 ACPI_STATUS rv; 436 437 aprint_naive("\n"); 438 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 439 440 if (acpi_softc != NULL) 441 panic("%s: already attached", __func__); 442 443 rsdt = acpi_map_rsdt(); 444 445 if (rsdt == NULL) 446 aprint_error_dev(self, "X/RSDT: Not found\n"); 447 else { 448 aprint_verbose_dev(self, 449 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 450 rsdt->OemId, rsdt->OemTableId, 451 rsdt->OemRevision, 452 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 453 } 454 455 acpi_unmap_rsdt(rsdt); 456 457 sc->sc_dev = self; 458 sc->sc_root = NULL; 459 460 sc->sc_sleepstate = ACPI_STATE_S0; 461 sc->sc_quirks = acpi_find_quirks(); 462 463 sysmon_power_settype("acpi"); 464 465 sc->sc_iot = aa->aa_iot; 466 sc->sc_memt = aa->aa_memt; 467 sc->sc_pciflags = aa->aa_pciflags; 468 sc->sc_ic = aa->aa_ic; 469 sc->sc_dmat = aa->aa_dmat; 470 sc->sc_dmat64 = aa->aa_dmat64; 471 472 SIMPLEQ_INIT(&sc->ad_head); 473 474 acpi_softc = sc; 475 476 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 477 aprint_error_dev(self, "couldn't establish power handler\n"); 478 479 /* 480 * Bring ACPICA on-line. 481 */ 482 483 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 484 485 if (ACPI_FAILURE(rv)) 486 goto fail; 487 488 /* 489 * Early initialization of acpiec(4) via ECDT. 490 */ 491 (void)config_found_ia(self, "acpiecdtbus", aa, NULL); 492 493 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 494 495 if (ACPI_FAILURE(rv)) 496 goto fail; 497 498 /* 499 * Scan the namespace and build our device tree. 500 */ 501 acpi_build_tree(sc); 502 503 #if NPCI > 0 504 /* 505 * Probe MCFG table 506 */ 507 acpimcfg_probe(sc); 508 #endif 509 510 acpi_md_callback(sc); 511 512 /* 513 * Early initialization of the _PDC control method 514 * that may load additional SSDT tables dynamically. 515 */ 516 (void)acpi_md_pdc(); 517 518 /* 519 * Install global notify handlers. 520 */ 521 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 522 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 523 524 if (ACPI_FAILURE(rv)) 525 goto fail; 526 527 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 528 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 529 530 if (ACPI_FAILURE(rv)) 531 goto fail; 532 533 acpi_active = 1; 534 535 if (!AcpiGbl_ReducedHardware) { 536 /* Show SCI interrupt. */ 537 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 538 AcpiGbl_FADT.SciInterrupt); 539 540 /* 541 * Install fixed-event handlers. 542 */ 543 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 544 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 545 } 546 547 acpitimer_init(sc); 548 acpi_config_tree(sc); 549 acpi_sleep_init(sc); 550 551 #ifdef ACPI_DEBUG 552 acpi_debug_init(); 553 #endif 554 555 /* 556 * Print debug information. 557 */ 558 acpi_print_verbose(sc); 559 560 return; 561 562 fail: 563 aprint_error("%s: failed to initialize ACPI: %s\n", 564 __func__, AcpiFormatException(rv)); 565 } 566 567 /* 568 * XXX: This is incomplete. 569 */ 570 static int 571 acpi_detach(device_t self, int flags) 572 { 573 struct acpi_softc *sc = device_private(self); 574 ACPI_STATUS rv; 575 int rc; 576 577 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 578 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 579 580 if (ACPI_FAILURE(rv)) 581 return EBUSY; 582 583 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 584 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 585 586 if (ACPI_FAILURE(rv)) 587 return EBUSY; 588 589 if ((rc = config_detach_children(self, flags)) != 0) 590 return rc; 591 592 if ((rc = acpitimer_detach()) != 0) 593 return rc; 594 595 if (!AcpiGbl_ReducedHardware) { 596 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 597 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 598 } 599 600 pmf_device_deregister(self); 601 602 acpi_softc = NULL; 603 604 return 0; 605 } 606 607 static void 608 acpi_childdet(device_t self, device_t child) 609 { 610 struct acpi_softc *sc = device_private(self); 611 struct acpi_devnode *ad; 612 613 if (sc->sc_apmbus == child) 614 sc->sc_apmbus = NULL; 615 616 if (sc->sc_hpet == child) 617 sc->sc_hpet = NULL; 618 619 if (sc->sc_wdrt == child) 620 sc->sc_wdrt = NULL; 621 622 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 623 624 if (ad->ad_device == child) 625 ad->ad_device = NULL; 626 } 627 } 628 629 static bool 630 acpi_suspend(device_t dv, const pmf_qual_t *qual) 631 { 632 633 acpi_suspended = 1; 634 635 return true; 636 } 637 638 static bool 639 acpi_resume(device_t dv, const pmf_qual_t *qual) 640 { 641 642 acpi_suspended = 0; 643 644 return true; 645 } 646 647 /* 648 * Namespace scan. 649 */ 650 static void 651 acpi_build_tree(struct acpi_softc *sc) 652 { 653 struct acpi_walkcontext awc; 654 655 /* 656 * Get the root scope handles. 657 */ 658 KASSERT(__arraycount(acpi_scopes) == 4); 659 660 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 661 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 662 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 663 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 664 665 /* 666 * Make the root node. 667 */ 668 awc.aw_sc = sc; 669 awc.aw_parent = NULL; 670 671 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 672 673 KASSERT(sc->sc_root == NULL); 674 KASSERT(awc.aw_parent != NULL); 675 676 sc->sc_root = awc.aw_parent; 677 678 /* 679 * Build the internal namespace. 680 */ 681 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 682 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 683 684 /* 685 * Scan the internal namespace. 686 */ 687 (void)acpi_pcidev_scan(sc->sc_root); 688 } 689 690 static void 691 acpi_config_tree(struct acpi_softc *sc) 692 { 693 /* 694 * Assign bus_dma resources 695 */ 696 acpi_config_dma(sc); 697 698 /* 699 * Configure all everything found "at acpi?". 700 */ 701 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 702 703 /* 704 * Update GPE information. 705 * 706 * Note that this must be called after 707 * all GPE handlers have been installed. 708 */ 709 (void)AcpiUpdateAllGpes(); 710 711 /* 712 * Defer rest of the configuration. 713 */ 714 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 715 } 716 717 static void 718 acpi_config_dma(struct acpi_softc *sc) 719 { 720 struct acpi_devnode *ad; 721 722 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 723 724 if (ad->ad_device != NULL) 725 continue; 726 727 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 728 continue; 729 730 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 731 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 732 } 733 } 734 735 static ACPI_STATUS 736 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 737 void *context, void **status) 738 { 739 struct acpi_walkcontext *awc = context; 740 struct acpi_softc *sc = awc->aw_sc; 741 struct acpi_devnode *ad; 742 ACPI_DEVICE_INFO *devinfo; 743 ACPI_OBJECT_TYPE type; 744 ACPI_STATUS rv; 745 746 rv = AcpiGetObjectInfo(handle, &devinfo); 747 748 if (ACPI_FAILURE(rv)) 749 return AE_OK; /* Do not terminate the walk. */ 750 751 type = devinfo->Type; 752 753 switch (type) { 754 755 case ACPI_TYPE_DEVICE: 756 acpi_activate_device(handle, &devinfo); 757 /* FALLTHROUGH */ 758 759 case ACPI_TYPE_PROCESSOR: 760 case ACPI_TYPE_THERMAL: 761 case ACPI_TYPE_POWER: 762 763 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 764 765 ad->ad_device = NULL; 766 ad->ad_notify = NULL; 767 ad->ad_pciinfo = NULL; 768 ad->ad_wakedev = NULL; 769 770 ad->ad_type = type; 771 ad->ad_handle = handle; 772 ad->ad_devinfo = devinfo; 773 774 ad->ad_root = sc->sc_dev; 775 ad->ad_parent = awc->aw_parent; 776 777 acpi_match_node_init(ad); 778 acpi_make_name(ad, devinfo->Name); 779 780 /* 781 * Identify wake GPEs from the _PRW. Note that 782 * AcpiUpdateAllGpes() must be called afterwards. 783 */ 784 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 785 acpi_wakedev_init(ad); 786 787 SIMPLEQ_INIT(&ad->ad_child_head); 788 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 789 790 if (ad->ad_parent != NULL) { 791 792 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 793 ad, ad_child_list); 794 } 795 796 awc->aw_parent = ad; 797 break; 798 799 default: 800 ACPI_FREE(devinfo); 801 break; 802 } 803 804 return AE_OK; 805 } 806 807 static ACPI_STATUS 808 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 809 void *context, void **status) 810 { 811 struct acpi_walkcontext *awc = context; 812 813 KASSERT(awc != NULL); 814 KASSERT(awc->aw_parent != NULL); 815 816 if (handle == awc->aw_parent->ad_handle) 817 awc->aw_parent = awc->aw_parent->ad_parent; 818 819 return AE_OK; 820 } 821 822 static void 823 acpi_make_name(struct acpi_devnode *ad, uint32_t name) 824 { 825 ACPI_NAME_UNION *anu; 826 int clear, i; 827 828 anu = (ACPI_NAME_UNION *)&name; 829 ad->ad_name[4] = '\0'; 830 831 for (i = 3, clear = 0; i >= 0; i--) { 832 833 if (clear == 0 && anu->Ascii[i] == '_') 834 ad->ad_name[i] = '\0'; 835 else { 836 ad->ad_name[i] = anu->Ascii[i]; 837 clear = 1; 838 } 839 } 840 841 if (ad->ad_name[0] == '\0') 842 ad->ad_name[0] = '_'; 843 } 844 845 bus_dma_tag_t 846 acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 847 { 848 return sc->sc_dmat; 849 } 850 __weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 851 852 bus_dma_tag_t 853 acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 854 { 855 return sc->sc_dmat64; 856 } 857 __weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 858 859 pci_chipset_tag_t 860 acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 861 { 862 return NULL; 863 } 864 __weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 865 866 /* 867 * Device attachment. 868 */ 869 static int 870 acpi_rescan(device_t self, const char *ifattr, const int *locators) 871 { 872 struct acpi_softc *sc = device_private(self); 873 struct acpi_attach_args aa; 874 875 /* 876 * Try to attach hpet(4) first via a specific table. 877 */ 878 aa.aa_memt = sc->sc_memt; 879 880 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) 881 sc->sc_hpet = config_found_ia(sc->sc_dev, 882 "acpihpetbus", &aa, NULL); 883 884 /* 885 * A two-pass scan for acpinodebus. 886 */ 887 if (ifattr_match(ifattr, "acpinodebus")) { 888 acpi_rescan_early(sc); 889 acpi_rescan_nodes(sc); 890 } 891 892 /* 893 * Attach APM emulation and acpiwdrt(4). 894 */ 895 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 896 sc->sc_apmbus = config_found_ia(sc->sc_dev, 897 "acpiapmbus", NULL, NULL); 898 899 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) 900 sc->sc_wdrt = config_found_ia(sc->sc_dev, 901 "acpiwdrtbus", NULL, NULL); 902 903 return 0; 904 } 905 906 static void 907 acpi_rescan_early(struct acpi_softc *sc) 908 { 909 struct acpi_attach_args aa; 910 struct acpi_devnode *ad; 911 912 /* 913 * First scan for devices such as acpiec(4) that 914 * should be always attached before anything else. 915 * We want these devices to attach regardless of 916 * the device status and other restrictions. 917 */ 918 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 919 920 if (ad->ad_device != NULL) 921 continue; 922 923 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 924 continue; 925 926 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 927 continue; 928 929 aa.aa_node = ad; 930 aa.aa_iot = sc->sc_iot; 931 aa.aa_memt = sc->sc_memt; 932 if (ad->ad_pciinfo != NULL) { 933 aa.aa_pc = ad->ad_pciinfo->ap_pc; 934 aa.aa_pciflags = sc->sc_pciflags; 935 } 936 aa.aa_ic = sc->sc_ic; 937 aa.aa_dmat = ad->ad_dmat; 938 aa.aa_dmat64 = ad->ad_dmat64; 939 940 ad->ad_device = config_found_ia(sc->sc_dev, 941 "acpinodebus", &aa, acpi_print); 942 } 943 } 944 945 static void 946 acpi_rescan_nodes(struct acpi_softc *sc) 947 { 948 const char * const hpet_ids[] = { "PNP0103", NULL }; 949 struct acpi_attach_args aa; 950 struct acpi_devnode *ad; 951 ACPI_DEVICE_INFO *di; 952 953 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 954 955 if (ad->ad_device != NULL) 956 continue; 957 958 /* 959 * There is a bug in ACPICA: it defines the type 960 * of the scopes incorrectly for its own reasons. 961 */ 962 if (acpi_is_scope(ad) != false) 963 continue; 964 965 di = ad->ad_devinfo; 966 967 /* 968 * We only attach devices which are present, enabled, and 969 * functioning properly. However, if a device is enabled, 970 * it is decoding resources and we should claim these, 971 * if possible. This requires changes to bus_space(9). 972 */ 973 if (di->Type == ACPI_TYPE_DEVICE && 974 !acpi_device_present(ad->ad_handle)) { 975 continue; 976 } 977 978 if (di->Type == ACPI_TYPE_POWER) 979 continue; 980 981 if (di->Type == ACPI_TYPE_PROCESSOR) 982 continue; 983 984 if (acpi_match_hid(di, acpi_early_ids) != 0) 985 continue; 986 987 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 988 continue; 989 990 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 991 continue; 992 993 aa.aa_node = ad; 994 aa.aa_iot = sc->sc_iot; 995 aa.aa_memt = sc->sc_memt; 996 if (ad->ad_pciinfo != NULL) { 997 aa.aa_pc = ad->ad_pciinfo->ap_pc; 998 aa.aa_pciflags = sc->sc_pciflags; 999 } 1000 aa.aa_ic = sc->sc_ic; 1001 aa.aa_dmat = ad->ad_dmat; 1002 aa.aa_dmat64 = ad->ad_dmat64; 1003 1004 ad->ad_device = config_found_ia(sc->sc_dev, 1005 "acpinodebus", &aa, acpi_print); 1006 } 1007 } 1008 1009 static void 1010 acpi_rescan_capabilities(device_t self) 1011 { 1012 struct acpi_softc *sc = device_private(self); 1013 struct acpi_devnode *ad; 1014 ACPI_HANDLE tmp; 1015 ACPI_STATUS rv; 1016 1017 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1018 1019 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1020 continue; 1021 1022 /* 1023 * Scan power resource capabilities. 1024 * 1025 * If any power states are supported, 1026 * at least _PR0 and _PR3 must be present. 1027 */ 1028 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1029 1030 if (ACPI_SUCCESS(rv)) { 1031 ad->ad_flags |= ACPI_DEVICE_POWER; 1032 acpi_power_add(ad); 1033 } 1034 1035 /* 1036 * Scan wake-up capabilities. 1037 */ 1038 if (ad->ad_wakedev != NULL) { 1039 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1040 acpi_wakedev_add(ad); 1041 } 1042 1043 /* 1044 * Scan docking stations. 1045 */ 1046 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1047 1048 if (ACPI_SUCCESS(rv)) 1049 ad->ad_flags |= ACPI_DEVICE_DOCK; 1050 1051 /* 1052 * Scan devices that are ejectable. 1053 */ 1054 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1055 1056 if (ACPI_SUCCESS(rv)) 1057 ad->ad_flags |= ACPI_DEVICE_EJECT; 1058 } 1059 } 1060 1061 static int 1062 acpi_print(void *aux, const char *pnp) 1063 { 1064 struct acpi_attach_args *aa = aux; 1065 struct acpi_devnode *ad; 1066 const char *hid, *uid; 1067 ACPI_DEVICE_INFO *di; 1068 1069 ad = aa->aa_node; 1070 di = ad->ad_devinfo; 1071 1072 hid = di->HardwareId.String; 1073 uid = di->UniqueId.String; 1074 1075 if (pnp != NULL) { 1076 1077 if (di->Type != ACPI_TYPE_DEVICE) { 1078 1079 aprint_normal("%s (ACPI Object Type '%s') at %s", 1080 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1081 1082 return UNCONF; 1083 } 1084 1085 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1086 return 0; 1087 1088 aprint_normal("%s (%s) ", ad->ad_name, hid); 1089 acpi_print_dev(hid); 1090 aprint_normal("at %s", pnp); 1091 1092 return UNCONF; 1093 } 1094 1095 aprint_normal(" (%s", ad->ad_name); 1096 1097 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1098 1099 aprint_normal(", %s", hid); 1100 1101 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1102 1103 if (uid[0] == '\0') 1104 uid = "<null>"; 1105 1106 aprint_normal("-%s", uid); 1107 } 1108 } 1109 1110 aprint_normal(")"); 1111 1112 return UNCONF; 1113 } 1114 1115 /* 1116 * Notify. 1117 */ 1118 static void 1119 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1120 { 1121 struct acpi_softc *sc = acpi_softc; 1122 struct acpi_devnode *ad; 1123 1124 KASSERT(sc != NULL); 1125 KASSERT(aux == NULL); 1126 KASSERT(acpi_active != 0); 1127 1128 if (acpi_suspended != 0) 1129 return; 1130 1131 /* 1132 * System: 0x00 - 0x7F. 1133 * Device: 0x80 - 0xFF. 1134 */ 1135 switch (event) { 1136 1137 case ACPI_NOTIFY_BUS_CHECK: 1138 case ACPI_NOTIFY_DEVICE_CHECK: 1139 case ACPI_NOTIFY_DEVICE_WAKE: 1140 case ACPI_NOTIFY_EJECT_REQUEST: 1141 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1142 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1143 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1144 case ACPI_NOTIFY_POWER_FAULT: 1145 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1146 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1147 case ACPI_NOTIFY_RESERVED: 1148 case ACPI_NOTIFY_LOCALITY_UPDATE: 1149 break; 1150 } 1151 1152 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1153 "%s (%p)\n", event, acpi_name(handle), handle)); 1154 1155 /* 1156 * We deliver notifications only to drivers 1157 * that have been successfully attached and 1158 * that have registered a handler with us. 1159 * The opaque pointer is always the device_t. 1160 */ 1161 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1162 1163 if (ad->ad_device == NULL) 1164 continue; 1165 1166 if (ad->ad_notify == NULL) 1167 continue; 1168 1169 if (ad->ad_handle != handle) 1170 continue; 1171 1172 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1173 1174 return; 1175 } 1176 1177 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1178 "for %s (%p)\n", event, acpi_name(handle), handle); 1179 } 1180 1181 bool 1182 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1183 { 1184 struct acpi_softc *sc = acpi_softc; 1185 1186 KASSERT(sc != NULL); 1187 KASSERT(acpi_active != 0); 1188 1189 if (acpi_suspended != 0) 1190 goto fail; 1191 1192 if (ad == NULL || notify == NULL) 1193 goto fail; 1194 1195 ad->ad_notify = notify; 1196 1197 return true; 1198 1199 fail: 1200 aprint_error_dev(sc->sc_dev, "failed to register notify " 1201 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1202 1203 return false; 1204 } 1205 1206 void 1207 acpi_deregister_notify(struct acpi_devnode *ad) 1208 { 1209 1210 ad->ad_notify = NULL; 1211 } 1212 1213 /* 1214 * Fixed buttons. 1215 */ 1216 static void 1217 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1218 { 1219 struct sysmon_pswitch *smpsw; 1220 ACPI_STATUS rv; 1221 int type; 1222 1223 switch (event) { 1224 1225 case ACPI_EVENT_POWER_BUTTON: 1226 1227 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1228 return; 1229 1230 type = PSWITCH_TYPE_POWER; 1231 smpsw = &sc->sc_smpsw_power; 1232 break; 1233 1234 case ACPI_EVENT_SLEEP_BUTTON: 1235 1236 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1237 return; 1238 1239 type = PSWITCH_TYPE_SLEEP; 1240 smpsw = &sc->sc_smpsw_sleep; 1241 break; 1242 1243 default: 1244 rv = AE_TYPE; 1245 goto fail; 1246 } 1247 1248 smpsw->smpsw_type = type; 1249 smpsw->smpsw_name = device_xname(sc->sc_dev); 1250 1251 if (sysmon_pswitch_register(smpsw) != 0) { 1252 rv = AE_ERROR; 1253 goto fail; 1254 } 1255 1256 AcpiClearEvent(event); 1257 1258 rv = AcpiInstallFixedEventHandler(event, 1259 acpi_fixed_button_handler, smpsw); 1260 1261 if (ACPI_FAILURE(rv)) { 1262 sysmon_pswitch_unregister(smpsw); 1263 goto fail; 1264 } 1265 1266 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1267 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1268 1269 return; 1270 1271 fail: 1272 aprint_error_dev(sc->sc_dev, "failed to register " 1273 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1274 } 1275 1276 static void 1277 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1278 { 1279 struct sysmon_pswitch *smpsw; 1280 ACPI_STATUS rv; 1281 1282 switch (event) { 1283 1284 case ACPI_EVENT_POWER_BUTTON: 1285 smpsw = &sc->sc_smpsw_power; 1286 1287 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1288 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1289 return; 1290 } 1291 1292 break; 1293 1294 case ACPI_EVENT_SLEEP_BUTTON: 1295 smpsw = &sc->sc_smpsw_sleep; 1296 1297 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1298 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1299 return; 1300 } 1301 1302 break; 1303 1304 default: 1305 rv = AE_TYPE; 1306 goto fail; 1307 } 1308 1309 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1310 1311 if (ACPI_SUCCESS(rv)) { 1312 sysmon_pswitch_unregister(smpsw); 1313 return; 1314 } 1315 1316 fail: 1317 aprint_error_dev(sc->sc_dev, "failed to deregister " 1318 "fixed event: %s\n", AcpiFormatException(rv)); 1319 } 1320 1321 static uint32_t 1322 acpi_fixed_button_handler(void *context) 1323 { 1324 static const int handler = OSL_NOTIFY_HANDLER; 1325 struct sysmon_pswitch *smpsw = context; 1326 1327 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1328 1329 return ACPI_INTERRUPT_HANDLED; 1330 } 1331 1332 static void 1333 acpi_fixed_button_pressed(void *context) 1334 { 1335 struct sysmon_pswitch *smpsw = context; 1336 1337 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1338 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1339 "power" : "sleep")); 1340 1341 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1342 } 1343 1344 /* 1345 * Sleep. 1346 */ 1347 static void 1348 acpi_sleep_init(struct acpi_softc *sc) 1349 { 1350 uint8_t a, b, i; 1351 ACPI_STATUS rv; 1352 1353 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1354 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1355 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1356 1357 /* 1358 * Evaluate supported sleep states. 1359 */ 1360 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1361 1362 rv = AcpiGetSleepTypeData(i, &a, &b); 1363 1364 if (ACPI_SUCCESS(rv)) 1365 sc->sc_sleepstates |= __BIT(i); 1366 } 1367 } 1368 1369 /* 1370 * Must be called with interrupts enabled. 1371 */ 1372 void 1373 acpi_enter_sleep_state(int state) 1374 { 1375 struct acpi_softc *sc = acpi_softc; 1376 ACPI_STATUS rv; 1377 1378 if (acpi_softc == NULL) 1379 return; 1380 1381 if (state == sc->sc_sleepstate) 1382 return; 1383 1384 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1385 return; 1386 1387 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1388 1389 switch (state) { 1390 1391 case ACPI_STATE_S0: 1392 sc->sc_sleepstate = ACPI_STATE_S0; 1393 return; 1394 1395 case ACPI_STATE_S1: 1396 case ACPI_STATE_S2: 1397 case ACPI_STATE_S3: 1398 case ACPI_STATE_S4: 1399 1400 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1401 aprint_error_dev(sc->sc_dev, "sleep state " 1402 "S%d is not available\n", state); 1403 return; 1404 } 1405 1406 /* 1407 * Evaluate the _TTS method. This should be done before 1408 * pmf_system_suspend(9) and the evaluation of _PTS. 1409 * We should also re-evaluate this once we return to 1410 * S0 or if we abort the sleep state transition in the 1411 * middle (see ACPI 3.0, section 7.3.6). In reality, 1412 * however, the _TTS method is seldom seen in the field. 1413 */ 1414 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1415 1416 if (ACPI_SUCCESS(rv)) 1417 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1418 1419 if (state != ACPI_STATE_S1 && 1420 pmf_system_suspend(PMF_Q_NONE) != true) { 1421 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1422 break; 1423 } 1424 1425 /* 1426 * This will evaluate the _PTS and _SST methods, 1427 * but unlike the documentation claims, not _GTS, 1428 * which is evaluated in AcpiEnterSleepState(). 1429 * This must be called with interrupts enabled. 1430 */ 1431 rv = AcpiEnterSleepStatePrep(state); 1432 1433 if (ACPI_FAILURE(rv)) { 1434 aprint_error_dev(sc->sc_dev, "failed to prepare " 1435 "S%d: %s\n", state, AcpiFormatException(rv)); 1436 break; 1437 } 1438 1439 /* 1440 * After the _PTS method has been evaluated, we can 1441 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1442 */ 1443 acpi_wakedev_commit(sc, state); 1444 1445 sc->sc_sleepstate = state; 1446 1447 if (state == ACPI_STATE_S1) { 1448 1449 /* 1450 * Before the transition to S1, CPU caches 1451 * must be flushed (see ACPI 4.0, 7.3.4.2). 1452 * 1453 * Note that interrupts must be off before 1454 * calling AcpiEnterSleepState(). Conversely, 1455 * AcpiLeaveSleepState() should always be 1456 * called with interrupts enabled. 1457 */ 1458 acpi_md_OsDisableInterrupt(); 1459 1460 ACPI_FLUSH_CPU_CACHE(); 1461 rv = AcpiEnterSleepState(state); 1462 1463 if (ACPI_FAILURE(rv)) 1464 aprint_error_dev(sc->sc_dev, "failed to " 1465 "enter S1: %s\n", AcpiFormatException(rv)); 1466 1467 /* 1468 * Clear fixed events and disable all GPEs before 1469 * interrupts are enabled. 1470 */ 1471 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1472 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1473 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1474 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1475 AcpiClearEvent(ACPI_EVENT_RTC); 1476 #if (!ACPI_REDUCED_HARDWARE) 1477 AcpiHwDisableAllGpes(); 1478 #endif 1479 1480 acpi_md_OsEnableInterrupt(); 1481 rv = AcpiLeaveSleepState(state); 1482 1483 } else { 1484 1485 (void)acpi_md_sleep(state); 1486 1487 if (state == ACPI_STATE_S4) 1488 AcpiEnable(); 1489 1490 (void)pmf_system_bus_resume(PMF_Q_NONE); 1491 (void)AcpiLeaveSleepState(state); 1492 (void)AcpiSetFirmwareWakingVector(0, 0); 1493 (void)pmf_system_resume(PMF_Q_NONE); 1494 } 1495 1496 /* 1497 * No wake GPEs should be enabled at runtime. 1498 */ 1499 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1500 break; 1501 1502 case ACPI_STATE_S5: 1503 1504 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1505 1506 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1507 1508 if (ACPI_FAILURE(rv)) { 1509 aprint_error_dev(sc->sc_dev, "failed to prepare " 1510 "S%d: %s\n", state, AcpiFormatException(rv)); 1511 break; 1512 } 1513 1514 (void)AcpiDisableAllGpes(); 1515 1516 DELAY(1000000); 1517 1518 sc->sc_sleepstate = state; 1519 acpi_md_OsDisableInterrupt(); 1520 1521 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1522 1523 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1524 1525 break; 1526 } 1527 1528 sc->sc_sleepstate = ACPI_STATE_S0; 1529 1530 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1531 } 1532 1533 /* 1534 * Sysctl. 1535 */ 1536 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1537 { 1538 const struct sysctlnode *rnode, *snode; 1539 int err; 1540 1541 err = sysctl_createv(clog, 0, NULL, &rnode, 1542 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1543 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1544 NULL, 0, NULL, 0, 1545 CTL_HW, CTL_CREATE, CTL_EOL); 1546 1547 if (err != 0) 1548 return; 1549 1550 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1551 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1552 "root", SYSCTL_DESCR("ACPI root pointer"), 1553 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1554 CTL_CREATE, CTL_EOL); 1555 1556 err = sysctl_createv(clog, 0, &rnode, &snode, 1557 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1558 "sleep", SYSCTL_DESCR("ACPI sleep"), 1559 NULL, 0, NULL, 0, 1560 CTL_CREATE, CTL_EOL); 1561 1562 if (err != 0) 1563 return; 1564 1565 (void)sysctl_createv(NULL, 0, &snode, NULL, 1566 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1567 "state", SYSCTL_DESCR("System sleep state"), 1568 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1569 CTL_CREATE, CTL_EOL); 1570 1571 (void)sysctl_createv(NULL, 0, &snode, NULL, 1572 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1573 "states", SYSCTL_DESCR("Supported sleep states"), 1574 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1575 CTL_CREATE, CTL_EOL); 1576 1577 err = sysctl_createv(clog, 0, &rnode, &rnode, 1578 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1579 "stat", SYSCTL_DESCR("ACPI statistics"), 1580 NULL, 0, NULL, 0, 1581 CTL_CREATE, CTL_EOL); 1582 1583 if (err != 0) 1584 return; 1585 1586 (void)sysctl_createv(clog, 0, &rnode, NULL, 1587 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1588 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1589 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1590 CTL_CREATE, CTL_EOL); 1591 1592 (void)sysctl_createv(clog, 0, &rnode, NULL, 1593 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1594 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1595 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1596 CTL_CREATE, CTL_EOL); 1597 1598 (void)sysctl_createv(clog, 0, &rnode, NULL, 1599 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1600 "fixed", SYSCTL_DESCR("Number of fixed events"), 1601 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1602 CTL_CREATE, CTL_EOL); 1603 1604 (void)sysctl_createv(clog, 0, &rnode, NULL, 1605 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1606 "method", SYSCTL_DESCR("Number of methods executed"), 1607 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1608 CTL_CREATE, CTL_EOL); 1609 1610 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1611 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1612 } 1613 1614 static int 1615 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1616 { 1617 struct sysctlnode node; 1618 uint64_t t; 1619 int err, i; 1620 1621 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1622 t += AcpiFixedEventCount[i]; 1623 1624 node = *rnode; 1625 node.sysctl_data = &t; 1626 1627 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1628 1629 if (err || newp == NULL) 1630 return err; 1631 1632 return 0; 1633 } 1634 1635 static int 1636 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1637 { 1638 struct acpi_softc *sc = acpi_softc; 1639 struct sysctlnode node; 1640 int err, t; 1641 1642 if (acpi_softc == NULL) 1643 return ENOSYS; 1644 1645 node = *rnode; 1646 t = sc->sc_sleepstate; 1647 node.sysctl_data = &t; 1648 1649 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1650 1651 if (err || newp == NULL) 1652 return err; 1653 1654 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1655 return EINVAL; 1656 1657 acpi_enter_sleep_state(t); 1658 1659 return 0; 1660 } 1661 1662 static int 1663 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1664 { 1665 struct acpi_softc *sc = acpi_softc; 1666 struct sysctlnode node; 1667 char t[3 * 6 + 1]; 1668 int err; 1669 1670 if (acpi_softc == NULL) 1671 return ENOSYS; 1672 1673 (void)memset(t, '\0', sizeof(t)); 1674 1675 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1676 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1677 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1678 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1679 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1680 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1681 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1682 1683 node = *rnode; 1684 node.sysctl_data = &t; 1685 1686 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1687 1688 if (err || newp == NULL) 1689 return err; 1690 1691 return 0; 1692 } 1693 1694 /* 1695 * Tables. 1696 */ 1697 ACPI_PHYSICAL_ADDRESS 1698 acpi_OsGetRootPointer(void) 1699 { 1700 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1701 1702 /* 1703 * We let MD code handle this since there are multiple ways to do it: 1704 * 1705 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1706 * 1707 * IA-64: Use the EFI. 1708 */ 1709 PhysicalAddress = acpi_md_OsGetRootPointer(); 1710 1711 if (acpi_root_pointer == 0) 1712 acpi_root_pointer = PhysicalAddress; 1713 1714 return PhysicalAddress; 1715 } 1716 1717 static ACPI_TABLE_HEADER * 1718 acpi_map_rsdt(void) 1719 { 1720 ACPI_PHYSICAL_ADDRESS paddr; 1721 ACPI_TABLE_RSDP *rsdp; 1722 1723 paddr = AcpiOsGetRootPointer(); 1724 1725 if (paddr == 0) 1726 return NULL; 1727 1728 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1729 1730 if (rsdp == NULL) 1731 return NULL; 1732 1733 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1734 paddr = rsdp->XsdtPhysicalAddress; 1735 else 1736 paddr = rsdp->RsdtPhysicalAddress; 1737 1738 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1739 1740 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1741 } 1742 1743 /* 1744 * XXX: Refactor to be a generic function that unmaps tables. 1745 */ 1746 static void 1747 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1748 { 1749 1750 if (rsdt == NULL) 1751 return; 1752 1753 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1754 } 1755 1756 /* 1757 * XXX: Refactor to be a generic function that maps tables. 1758 */ 1759 ACPI_STATUS 1760 acpi_madt_map(void) 1761 { 1762 ACPI_STATUS rv; 1763 1764 if (madt_header != NULL) 1765 return AE_ALREADY_EXISTS; 1766 1767 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1768 1769 if (ACPI_FAILURE(rv)) 1770 return rv; 1771 1772 return AE_OK; 1773 } 1774 1775 void 1776 acpi_madt_unmap(void) 1777 { 1778 madt_header = NULL; 1779 } 1780 1781 ACPI_STATUS 1782 acpi_gtdt_map(void) 1783 { 1784 ACPI_STATUS rv; 1785 1786 if (gtdt_header != NULL) 1787 return AE_ALREADY_EXISTS; 1788 1789 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1790 1791 if (ACPI_FAILURE(rv)) 1792 return rv; 1793 1794 return AE_OK; 1795 } 1796 1797 void 1798 acpi_gtdt_unmap(void) 1799 { 1800 gtdt_header = NULL; 1801 } 1802 1803 /* 1804 * XXX: Refactor to be a generic function that walks tables. 1805 */ 1806 void 1807 acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1808 { 1809 ACPI_SUBTABLE_HEADER *hdrp; 1810 char *madtend, *where; 1811 1812 madtend = (char *)madt_header + madt_header->Length; 1813 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1814 1815 while (where < madtend) { 1816 1817 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1818 1819 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1820 break; 1821 1822 where += hdrp->Length; 1823 } 1824 } 1825 1826 void 1827 acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1828 { 1829 ACPI_GTDT_HEADER *hdrp; 1830 char *gtdtend, *where; 1831 1832 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1833 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1834 1835 while (where < gtdtend) { 1836 1837 hdrp = (ACPI_GTDT_HEADER *)where; 1838 1839 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1840 break; 1841 1842 where += hdrp->Length; 1843 } 1844 } 1845 1846 /* 1847 * Miscellaneous. 1848 */ 1849 static bool 1850 acpi_is_scope(struct acpi_devnode *ad) 1851 { 1852 int i; 1853 1854 /* 1855 * Return true if the node is a root scope. 1856 */ 1857 if (ad->ad_parent == NULL) 1858 return false; 1859 1860 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1861 return false; 1862 1863 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1864 1865 if (acpi_scopes[i] == NULL) 1866 continue; 1867 1868 if (ad->ad_handle == acpi_scopes[i]) 1869 return true; 1870 } 1871 1872 return false; 1873 } 1874 1875 bool 1876 acpi_device_present(ACPI_HANDLE handle) 1877 { 1878 ACPI_STATUS rv; 1879 ACPI_INTEGER sta; 1880 1881 rv = acpi_eval_integer(handle, "_STA", &sta); 1882 1883 if (ACPI_FAILURE(rv)) { 1884 /* No _STA method -> must be there */ 1885 return rv == AE_NOT_FOUND; 1886 } 1887 1888 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1889 } 1890 1891 /* 1892 * ACPIVERBOSE. 1893 */ 1894 void 1895 acpi_load_verbose(void) 1896 { 1897 1898 if (acpi_verbose_loaded == 0) 1899 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1900 } 1901 1902 void 1903 acpi_print_verbose_stub(struct acpi_softc *sc) 1904 { 1905 1906 acpi_load_verbose(); 1907 1908 if (acpi_verbose_loaded != 0) 1909 acpi_print_verbose(sc); 1910 } 1911 1912 void 1913 acpi_print_dev_stub(const char *pnpstr) 1914 { 1915 1916 acpi_load_verbose(); 1917 1918 if (acpi_verbose_loaded != 0) 1919 acpi_print_dev(pnpstr); 1920 } 1921 1922 MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1923 1924 /* 1925 * ACPI_ACTIVATE_DEV. 1926 */ 1927 static void 1928 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1929 { 1930 1931 #ifndef ACPI_ACTIVATE_DEV 1932 return; 1933 } 1934 #else 1935 static const int valid = ACPI_VALID_HID; 1936 ACPI_DEVICE_INFO *newdi; 1937 ACPI_STATUS rv; 1938 1939 1940 /* 1941 * If the device is valid and present, 1942 * but not enabled, try to activate it. 1943 */ 1944 if (((*di)->Valid & valid) != valid) 1945 return; 1946 1947 if (!acpi_device_present(handle)) 1948 return; 1949 1950 rv = acpi_allocate_resources(handle); 1951 1952 if (ACPI_FAILURE(rv)) 1953 goto fail; 1954 1955 rv = AcpiGetObjectInfo(handle, &newdi); 1956 1957 if (ACPI_FAILURE(rv)) 1958 goto fail; 1959 1960 ACPI_FREE(*di); 1961 *di = newdi; 1962 1963 aprint_verbose_dev(acpi_softc->sc_dev, 1964 "%s activated\n", (*di)->HardwareId.String); 1965 1966 return; 1967 1968 fail: 1969 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1970 "activate %s\n", (*di)->HardwareId.String); 1971 } 1972 1973 /* 1974 * XXX: This very incomplete. 1975 */ 1976 ACPI_STATUS 1977 acpi_allocate_resources(ACPI_HANDLE handle) 1978 { 1979 ACPI_BUFFER bufp, bufc, bufn; 1980 ACPI_RESOURCE *resp, *resc, *resn; 1981 ACPI_RESOURCE_IRQ *irq; 1982 #if 0 1983 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1984 #endif 1985 ACPI_STATUS rv; 1986 uint delta; 1987 1988 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1989 if (ACPI_FAILURE(rv)) 1990 goto out; 1991 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1992 if (ACPI_FAILURE(rv)) { 1993 goto out1; 1994 } 1995 1996 bufn.Length = 1000; 1997 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1998 resp = bufp.Pointer; 1999 resc = bufc.Pointer; 2000 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 2001 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2002 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 2003 resp = ACPI_NEXT_RESOURCE(resp); 2004 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 2005 break; 2006 /* Found identical Id */ 2007 resn->Type = resc->Type; 2008 switch (resc->Type) { 2009 case ACPI_RESOURCE_TYPE_IRQ: 2010 memcpy(&resn->Data, &resp->Data, 2011 sizeof(ACPI_RESOURCE_IRQ)); 2012 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2013 irq->Interrupts[0] = 2014 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2015 Interrupts[irq->InterruptCount-1]; 2016 irq->InterruptCount = 1; 2017 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2018 break; 2019 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2020 memcpy(&resn->Data, &resp->Data, 2021 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2022 #if 0 2023 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2024 /* 2025 * XXX: Not duplicating the interrupt logic above 2026 * because its not clear what it accomplishes. 2027 */ 2028 xirq->Interrupts[0] = 2029 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2030 Interrupts[irq->NumberOfInterrupts-1]; 2031 xirq->NumberOfInterrupts = 1; 2032 #endif 2033 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2034 break; 2035 case ACPI_RESOURCE_TYPE_IO: 2036 memcpy(&resn->Data, &resp->Data, 2037 sizeof(ACPI_RESOURCE_IO)); 2038 resn->Length = resp->Length; 2039 break; 2040 default: 2041 aprint_error_dev(acpi_softc->sc_dev, 2042 "%s: invalid type %u\n", __func__, resc->Type); 2043 rv = AE_BAD_DATA; 2044 goto out2; 2045 } 2046 resc = ACPI_NEXT_RESOURCE(resc); 2047 resn = ACPI_NEXT_RESOURCE(resn); 2048 resp = ACPI_NEXT_RESOURCE(resp); 2049 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2050 if (delta >= 2051 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2052 bufn.Length *= 2; 2053 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2054 M_ACPI, M_WAITOK); 2055 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2056 delta); 2057 } 2058 } 2059 2060 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2061 aprint_error_dev(acpi_softc->sc_dev, 2062 "%s: resc not exhausted\n", __func__); 2063 rv = AE_BAD_DATA; 2064 goto out3; 2065 } 2066 2067 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2068 rv = AcpiSetCurrentResources(handle, &bufn); 2069 2070 if (ACPI_FAILURE(rv)) 2071 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2072 "resources: %s\n", __func__, AcpiFormatException(rv)); 2073 2074 out3: 2075 free(bufn.Pointer, M_ACPI); 2076 out2: 2077 ACPI_FREE(bufc.Pointer); 2078 out1: 2079 ACPI_FREE(bufp.Pointer); 2080 out: 2081 return rv; 2082 } 2083 2084 #endif /* ACPI_ACTIVATE_DEV */ 2085