1 /* $NetBSD: acpi.c,v 1.283 2020/01/17 17:06:32 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 1.283 2020/01/17 17:06:32 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 "PNP0200", /* AT DMA controller is handled internally */ 170 "PNP0A??", /* PCI Busses are handled internally */ 171 "PNP0B00", /* AT RTC is handled internally */ 172 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 173 #endif 174 #if defined(x86_64) 175 "PNP0C04", /* FPU is handled internally */ 176 #endif 177 #if defined(__aarch64__) 178 "ACPI0004", /* ACPI module devices are handled internally */ 179 "ACPI0007", /* ACPI CPUs are attached via MADT GICC subtables */ 180 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 181 #endif 182 NULL 183 }; 184 185 /* 186 * Devices that should be attached early. 187 */ 188 static const char * const acpi_early_ids[] = { 189 "PNP0C09", /* acpiec(4) */ 190 NULL 191 }; 192 193 static int acpi_match(device_t, cfdata_t, void *); 194 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 195 static void acpi_attach(device_t, device_t, void *); 196 static int acpi_detach(device_t, int); 197 static void acpi_childdet(device_t, device_t); 198 static bool acpi_suspend(device_t, const pmf_qual_t *); 199 static bool acpi_resume(device_t, const pmf_qual_t *); 200 201 static void acpi_build_tree(struct acpi_softc *); 202 static void acpi_config_tree(struct acpi_softc *); 203 static void acpi_config_dma(struct acpi_softc *); 204 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 205 void *, void **); 206 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 207 void *, void **); 208 static void acpi_make_name(struct acpi_devnode *, uint32_t); 209 210 static int acpi_rescan(device_t, const char *, const int *); 211 static void acpi_rescan_early(struct acpi_softc *); 212 static void acpi_rescan_nodes(struct acpi_softc *); 213 static void acpi_rescan_capabilities(device_t); 214 static int acpi_print(void *aux, const char *); 215 216 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 217 218 static void acpi_register_fixed_button(struct acpi_softc *, int); 219 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 220 static uint32_t acpi_fixed_button_handler(void *); 221 static void acpi_fixed_button_pressed(void *); 222 223 static void acpi_sleep_init(struct acpi_softc *); 224 225 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 226 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 227 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 228 229 static bool acpi_is_scope(struct acpi_devnode *); 230 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 231 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 232 233 void acpi_print_verbose_stub(struct acpi_softc *); 234 void acpi_print_dev_stub(const char *); 235 236 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 237 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 238 239 void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 240 void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 241 242 bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 243 bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 244 pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 245 246 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 247 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 248 249 /* 250 * Probe for ACPI support. 251 * 252 * This is called by the machine-dependent ACPI front-end. 253 * Note: this is not an autoconfiguration interface function. 254 */ 255 int 256 acpi_probe(void) 257 { 258 ACPI_TABLE_HEADER *rsdt; 259 ACPI_STATUS rv; 260 int quirks; 261 262 if (acpi_softc != NULL) 263 panic("%s: already probed", __func__); 264 265 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 266 267 /* 268 * Start up ACPICA. 269 */ 270 AcpiGbl_EnableInterpreterSlack = true; 271 272 rv = AcpiInitializeSubsystem(); 273 274 if (ACPI_FAILURE(rv)) { 275 aprint_error("%s: failed to initialize subsystem\n", __func__); 276 return 0; 277 } 278 279 /* 280 * Allocate space for RSDT/XSDT and DSDT, 281 * but allow resizing if more tables exist. 282 */ 283 rv = AcpiInitializeTables(NULL, 2, true); 284 285 if (ACPI_FAILURE(rv)) { 286 aprint_error("%s: failed to initialize tables\n", __func__); 287 goto fail; 288 } 289 290 rv = AcpiLoadTables(); 291 292 if (ACPI_FAILURE(rv)) { 293 aprint_error("%s: failed to load tables\n", __func__); 294 goto fail; 295 } 296 297 rsdt = acpi_map_rsdt(); 298 299 if (rsdt == NULL) { 300 aprint_error("%s: failed to map RSDT\n", __func__); 301 goto fail; 302 } 303 304 quirks = acpi_find_quirks(); 305 306 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { 307 308 aprint_normal("ACPI: BIOS is listed as broken:\n"); 309 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 310 "AslId <%4.4s,%08x>\n", rsdt->OemId, rsdt->OemTableId, 311 rsdt->OemRevision, rsdt->AslCompilerId, 312 rsdt->AslCompilerRevision); 313 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 314 315 acpi_unmap_rsdt(rsdt); 316 goto fail; 317 } 318 319 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { 320 321 aprint_normal("ACPI: BIOS is too old (%s). " 322 "Set acpi_force_load to use.\n", 323 pmf_get_platform("bios-date")); 324 325 acpi_unmap_rsdt(rsdt); 326 goto fail; 327 } 328 329 acpi_unmap_rsdt(rsdt); 330 331 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 332 333 if (ACPI_FAILURE(rv)) { 334 aprint_error("%s: failed to enable subsystem\n", __func__); 335 goto fail; 336 } 337 338 return 1; 339 340 fail: 341 (void)AcpiTerminate(); 342 343 return 0; 344 } 345 346 void 347 acpi_disable(void) 348 { 349 350 if (acpi_softc == NULL) 351 return; 352 353 KASSERT(acpi_active != 0); 354 355 if (AcpiGbl_FADT.SmiCommand != 0) 356 AcpiDisable(); 357 } 358 359 int 360 acpi_check(device_t parent, const char *ifattr) 361 { 362 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 363 } 364 365 int 366 acpi_reset(void) 367 { 368 struct acpi_softc *sc = acpi_softc; 369 ACPI_GENERIC_ADDRESS *ResetReg; 370 ACPI_PCI_ID PciId; 371 ACPI_STATUS status; 372 373 if (sc == NULL) 374 return ENXIO; 375 376 ResetReg = &AcpiGbl_FADT.ResetRegister; 377 378 /* Check if the reset register is supported */ 379 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 380 !ResetReg->Address) { 381 return ENOENT; 382 } 383 384 switch (ResetReg->SpaceId) { 385 case ACPI_ADR_SPACE_PCI_CONFIG: 386 PciId.Segment = PciId.Bus = 0; 387 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 388 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 389 status = AcpiOsWritePciConfiguration(&PciId, 390 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 391 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 392 break; 393 case ACPI_ADR_SPACE_SYSTEM_IO: 394 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 395 status = AcpiReset(); 396 break; 397 default: 398 status = AE_TYPE; 399 break; 400 } 401 402 return ACPI_FAILURE(status) ? EIO : 0; 403 } 404 405 /* 406 * Autoconfiguration. 407 */ 408 static int 409 acpi_match(device_t parent, cfdata_t match, void *aux) 410 { 411 /* 412 * XXX: Nada; MD code has called acpi_probe(). 413 */ 414 return 1; 415 } 416 417 static int 418 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 419 { 420 struct cfattach *ca; 421 422 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 423 424 return (ca == &acpi_ca); 425 } 426 427 static void 428 acpi_attach(device_t parent, device_t self, void *aux) 429 { 430 struct acpi_softc *sc = device_private(self); 431 struct acpibus_attach_args *aa = aux; 432 ACPI_TABLE_HEADER *rsdt; 433 ACPI_STATUS rv; 434 435 aprint_naive("\n"); 436 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 437 438 if (acpi_softc != NULL) 439 panic("%s: already attached", __func__); 440 441 rsdt = acpi_map_rsdt(); 442 443 if (rsdt == NULL) 444 aprint_error_dev(self, "X/RSDT: Not found\n"); 445 else { 446 aprint_verbose_dev(self, 447 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 448 rsdt->OemId, rsdt->OemTableId, 449 rsdt->OemRevision, 450 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 451 } 452 453 acpi_unmap_rsdt(rsdt); 454 455 sc->sc_dev = self; 456 sc->sc_root = NULL; 457 458 sc->sc_sleepstate = ACPI_STATE_S0; 459 sc->sc_quirks = acpi_find_quirks(); 460 461 sysmon_power_settype("acpi"); 462 463 sc->sc_iot = aa->aa_iot; 464 sc->sc_memt = aa->aa_memt; 465 sc->sc_pciflags = aa->aa_pciflags; 466 sc->sc_ic = aa->aa_ic; 467 sc->sc_dmat = aa->aa_dmat; 468 sc->sc_dmat64 = aa->aa_dmat64; 469 470 SIMPLEQ_INIT(&sc->ad_head); 471 472 acpi_softc = sc; 473 474 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 475 aprint_error_dev(self, "couldn't establish power handler\n"); 476 477 /* 478 * Bring ACPICA on-line. 479 */ 480 481 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 482 483 if (ACPI_FAILURE(rv)) 484 goto fail; 485 486 /* 487 * Early initialization of acpiec(4) via ECDT. 488 */ 489 (void)config_found_ia(self, "acpiecdtbus", aa, NULL); 490 491 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 492 493 if (ACPI_FAILURE(rv)) 494 goto fail; 495 496 /* 497 * Scan the namespace and build our device tree. 498 */ 499 acpi_build_tree(sc); 500 501 #if NPCI > 0 502 /* 503 * Probe MCFG table 504 */ 505 acpimcfg_probe(sc); 506 #endif 507 508 acpi_md_callback(sc); 509 510 /* 511 * Early initialization of the _PDC control method 512 * that may load additional SSDT tables dynamically. 513 */ 514 (void)acpi_md_pdc(); 515 516 /* 517 * Install global notify handlers. 518 */ 519 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 520 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 521 522 if (ACPI_FAILURE(rv)) 523 goto fail; 524 525 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 526 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 527 528 if (ACPI_FAILURE(rv)) 529 goto fail; 530 531 acpi_active = 1; 532 533 if (!AcpiGbl_ReducedHardware) { 534 /* Show SCI interrupt. */ 535 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 536 AcpiGbl_FADT.SciInterrupt); 537 538 /* 539 * Install fixed-event handlers. 540 */ 541 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 542 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 543 } 544 545 acpitimer_init(sc); 546 acpi_config_tree(sc); 547 acpi_sleep_init(sc); 548 549 #ifdef ACPI_DEBUG 550 acpi_debug_init(); 551 #endif 552 553 /* 554 * Print debug information. 555 */ 556 acpi_print_verbose(sc); 557 558 return; 559 560 fail: 561 aprint_error("%s: failed to initialize ACPI: %s\n", 562 __func__, AcpiFormatException(rv)); 563 } 564 565 /* 566 * XXX: This is incomplete. 567 */ 568 static int 569 acpi_detach(device_t self, int flags) 570 { 571 struct acpi_softc *sc = device_private(self); 572 ACPI_STATUS rv; 573 int rc; 574 575 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 576 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 577 578 if (ACPI_FAILURE(rv)) 579 return EBUSY; 580 581 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 582 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 583 584 if (ACPI_FAILURE(rv)) 585 return EBUSY; 586 587 if ((rc = config_detach_children(self, flags)) != 0) 588 return rc; 589 590 if ((rc = acpitimer_detach()) != 0) 591 return rc; 592 593 if (!AcpiGbl_ReducedHardware) { 594 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 595 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 596 } 597 598 pmf_device_deregister(self); 599 600 acpi_softc = NULL; 601 602 return 0; 603 } 604 605 static void 606 acpi_childdet(device_t self, device_t child) 607 { 608 struct acpi_softc *sc = device_private(self); 609 struct acpi_devnode *ad; 610 611 if (sc->sc_apmbus == child) 612 sc->sc_apmbus = NULL; 613 614 if (sc->sc_hpet == child) 615 sc->sc_hpet = NULL; 616 617 if (sc->sc_wdrt == child) 618 sc->sc_wdrt = NULL; 619 620 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 621 622 if (ad->ad_device == child) 623 ad->ad_device = NULL; 624 } 625 } 626 627 static bool 628 acpi_suspend(device_t dv, const pmf_qual_t *qual) 629 { 630 631 acpi_suspended = 1; 632 633 return true; 634 } 635 636 static bool 637 acpi_resume(device_t dv, const pmf_qual_t *qual) 638 { 639 640 acpi_suspended = 0; 641 642 return true; 643 } 644 645 /* 646 * Namespace scan. 647 */ 648 static void 649 acpi_build_tree(struct acpi_softc *sc) 650 { 651 struct acpi_walkcontext awc; 652 653 /* 654 * Get the root scope handles. 655 */ 656 KASSERT(__arraycount(acpi_scopes) == 4); 657 658 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 659 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 660 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 661 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 662 663 /* 664 * Make the root node. 665 */ 666 awc.aw_sc = sc; 667 awc.aw_parent = NULL; 668 669 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 670 671 KASSERT(sc->sc_root == NULL); 672 KASSERT(awc.aw_parent != NULL); 673 674 sc->sc_root = awc.aw_parent; 675 676 /* 677 * Build the internal namespace. 678 */ 679 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 680 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 681 682 /* 683 * Scan the internal namespace. 684 */ 685 (void)acpi_pcidev_scan(sc->sc_root); 686 } 687 688 static void 689 acpi_config_tree(struct acpi_softc *sc) 690 { 691 /* 692 * Assign bus_dma resources 693 */ 694 acpi_config_dma(sc); 695 696 /* 697 * Configure all everything found "at acpi?". 698 */ 699 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 700 701 /* 702 * Update GPE information. 703 * 704 * Note that this must be called after 705 * all GPE handlers have been installed. 706 */ 707 (void)AcpiUpdateAllGpes(); 708 709 /* 710 * Defer rest of the configuration. 711 */ 712 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 713 } 714 715 static void 716 acpi_config_dma(struct acpi_softc *sc) 717 { 718 struct acpi_devnode *ad; 719 720 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 721 722 if (ad->ad_device != NULL) 723 continue; 724 725 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 726 continue; 727 728 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 729 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 730 } 731 } 732 733 static ACPI_STATUS 734 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 735 void *context, void **status) 736 { 737 struct acpi_walkcontext *awc = context; 738 struct acpi_softc *sc = awc->aw_sc; 739 struct acpi_devnode *ad; 740 ACPI_DEVICE_INFO *devinfo; 741 ACPI_OBJECT_TYPE type; 742 ACPI_STATUS rv; 743 744 rv = AcpiGetObjectInfo(handle, &devinfo); 745 746 if (ACPI_FAILURE(rv)) 747 return AE_OK; /* Do not terminate the walk. */ 748 749 type = devinfo->Type; 750 751 switch (type) { 752 753 case ACPI_TYPE_DEVICE: 754 acpi_activate_device(handle, &devinfo); 755 /* FALLTHROUGH */ 756 757 case ACPI_TYPE_PROCESSOR: 758 case ACPI_TYPE_THERMAL: 759 case ACPI_TYPE_POWER: 760 761 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 762 763 ad->ad_device = NULL; 764 ad->ad_notify = NULL; 765 ad->ad_pciinfo = NULL; 766 ad->ad_wakedev = NULL; 767 768 ad->ad_type = type; 769 ad->ad_handle = handle; 770 ad->ad_devinfo = devinfo; 771 772 ad->ad_root = sc->sc_dev; 773 ad->ad_parent = awc->aw_parent; 774 775 acpi_match_node_init(ad); 776 acpi_make_name(ad, devinfo->Name); 777 778 /* 779 * Identify wake GPEs from the _PRW. Note that 780 * AcpiUpdateAllGpes() must be called afterwards. 781 */ 782 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 783 acpi_wakedev_init(ad); 784 785 SIMPLEQ_INIT(&ad->ad_child_head); 786 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 787 788 if (ad->ad_parent != NULL) { 789 790 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 791 ad, ad_child_list); 792 } 793 794 awc->aw_parent = ad; 795 } 796 797 return AE_OK; 798 } 799 800 static ACPI_STATUS 801 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 802 void *context, void **status) 803 { 804 struct acpi_walkcontext *awc = context; 805 806 KASSERT(awc != NULL); 807 KASSERT(awc->aw_parent != NULL); 808 809 if (handle == awc->aw_parent->ad_handle) 810 awc->aw_parent = awc->aw_parent->ad_parent; 811 812 return AE_OK; 813 } 814 815 static void 816 acpi_make_name(struct acpi_devnode *ad, uint32_t name) 817 { 818 ACPI_NAME_UNION *anu; 819 int clear, i; 820 821 anu = (ACPI_NAME_UNION *)&name; 822 ad->ad_name[4] = '\0'; 823 824 for (i = 3, clear = 0; i >= 0; i--) { 825 826 if (clear == 0 && anu->Ascii[i] == '_') 827 ad->ad_name[i] = '\0'; 828 else { 829 ad->ad_name[i] = anu->Ascii[i]; 830 clear = 1; 831 } 832 } 833 834 if (ad->ad_name[0] == '\0') 835 ad->ad_name[0] = '_'; 836 } 837 838 bus_dma_tag_t 839 acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 840 { 841 return sc->sc_dmat; 842 } 843 __weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 844 845 bus_dma_tag_t 846 acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 847 { 848 return sc->sc_dmat64; 849 } 850 __weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 851 852 pci_chipset_tag_t 853 acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 854 { 855 return NULL; 856 } 857 __weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 858 859 /* 860 * Device attachment. 861 */ 862 static int 863 acpi_rescan(device_t self, const char *ifattr, const int *locators) 864 { 865 struct acpi_softc *sc = device_private(self); 866 struct acpi_attach_args aa; 867 868 /* 869 * Try to attach hpet(4) first via a specific table. 870 */ 871 aa.aa_memt = sc->sc_memt; 872 873 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) 874 sc->sc_hpet = config_found_ia(sc->sc_dev, 875 "acpihpetbus", &aa, NULL); 876 877 /* 878 * A two-pass scan for acpinodebus. 879 */ 880 if (ifattr_match(ifattr, "acpinodebus")) { 881 acpi_rescan_early(sc); 882 acpi_rescan_nodes(sc); 883 } 884 885 /* 886 * Attach APM emulation and acpiwdrt(4). 887 */ 888 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 889 sc->sc_apmbus = config_found_ia(sc->sc_dev, 890 "acpiapmbus", NULL, NULL); 891 892 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) 893 sc->sc_wdrt = config_found_ia(sc->sc_dev, 894 "acpiwdrtbus", NULL, NULL); 895 896 return 0; 897 } 898 899 static void 900 acpi_rescan_early(struct acpi_softc *sc) 901 { 902 struct acpi_attach_args aa; 903 struct acpi_devnode *ad; 904 905 /* 906 * First scan for devices such as acpiec(4) that 907 * should be always attached before anything else. 908 * We want these devices to attach regardless of 909 * the device status and other restrictions. 910 */ 911 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 912 913 if (ad->ad_device != NULL) 914 continue; 915 916 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 917 continue; 918 919 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 920 continue; 921 922 aa.aa_node = ad; 923 aa.aa_iot = sc->sc_iot; 924 aa.aa_memt = sc->sc_memt; 925 if (ad->ad_pciinfo != NULL) { 926 aa.aa_pc = ad->ad_pciinfo->ap_pc; 927 aa.aa_pciflags = sc->sc_pciflags; 928 } 929 aa.aa_ic = sc->sc_ic; 930 aa.aa_dmat = ad->ad_dmat; 931 aa.aa_dmat64 = ad->ad_dmat64; 932 933 ad->ad_device = config_found_ia(sc->sc_dev, 934 "acpinodebus", &aa, acpi_print); 935 } 936 } 937 938 static void 939 acpi_rescan_nodes(struct acpi_softc *sc) 940 { 941 const char * const hpet_ids[] = { "PNP0103", NULL }; 942 struct acpi_attach_args aa; 943 struct acpi_devnode *ad; 944 ACPI_DEVICE_INFO *di; 945 946 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 947 948 if (ad->ad_device != NULL) 949 continue; 950 951 /* 952 * There is a bug in ACPICA: it defines the type 953 * of the scopes incorrectly for its own reasons. 954 */ 955 if (acpi_is_scope(ad) != false) 956 continue; 957 958 di = ad->ad_devinfo; 959 960 /* 961 * We only attach devices which are present, enabled, and 962 * functioning properly. However, if a device is enabled, 963 * it is decoding resources and we should claim these, 964 * if possible. This requires changes to bus_space(9). 965 */ 966 if (di->Type == ACPI_TYPE_DEVICE && 967 !acpi_device_present(ad->ad_handle)) { 968 continue; 969 } 970 971 if (di->Type == ACPI_TYPE_POWER) 972 continue; 973 974 if (di->Type == ACPI_TYPE_PROCESSOR) 975 continue; 976 977 if (acpi_match_hid(di, acpi_early_ids) != 0) 978 continue; 979 980 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 981 continue; 982 983 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 984 continue; 985 986 aa.aa_node = ad; 987 aa.aa_iot = sc->sc_iot; 988 aa.aa_memt = sc->sc_memt; 989 if (ad->ad_pciinfo != NULL) { 990 aa.aa_pc = ad->ad_pciinfo->ap_pc; 991 aa.aa_pciflags = sc->sc_pciflags; 992 } 993 aa.aa_ic = sc->sc_ic; 994 aa.aa_dmat = ad->ad_dmat; 995 aa.aa_dmat64 = ad->ad_dmat64; 996 997 ad->ad_device = config_found_ia(sc->sc_dev, 998 "acpinodebus", &aa, acpi_print); 999 } 1000 } 1001 1002 static void 1003 acpi_rescan_capabilities(device_t self) 1004 { 1005 struct acpi_softc *sc = device_private(self); 1006 struct acpi_devnode *ad; 1007 ACPI_HANDLE tmp; 1008 ACPI_STATUS rv; 1009 1010 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1011 1012 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1013 continue; 1014 1015 /* 1016 * Scan power resource capabilities. 1017 * 1018 * If any power states are supported, 1019 * at least _PR0 and _PR3 must be present. 1020 */ 1021 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1022 1023 if (ACPI_SUCCESS(rv)) { 1024 ad->ad_flags |= ACPI_DEVICE_POWER; 1025 acpi_power_add(ad); 1026 } 1027 1028 /* 1029 * Scan wake-up capabilities. 1030 */ 1031 if (ad->ad_wakedev != NULL) { 1032 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1033 acpi_wakedev_add(ad); 1034 } 1035 1036 /* 1037 * Scan docking stations. 1038 */ 1039 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1040 1041 if (ACPI_SUCCESS(rv)) 1042 ad->ad_flags |= ACPI_DEVICE_DOCK; 1043 1044 /* 1045 * Scan devices that are ejectable. 1046 */ 1047 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1048 1049 if (ACPI_SUCCESS(rv)) 1050 ad->ad_flags |= ACPI_DEVICE_EJECT; 1051 } 1052 } 1053 1054 static int 1055 acpi_print(void *aux, const char *pnp) 1056 { 1057 struct acpi_attach_args *aa = aux; 1058 struct acpi_devnode *ad; 1059 const char *hid, *uid; 1060 ACPI_DEVICE_INFO *di; 1061 1062 ad = aa->aa_node; 1063 di = ad->ad_devinfo; 1064 1065 hid = di->HardwareId.String; 1066 uid = di->UniqueId.String; 1067 1068 if (pnp != NULL) { 1069 1070 if (di->Type != ACPI_TYPE_DEVICE) { 1071 1072 aprint_normal("%s (ACPI Object Type '%s') at %s", 1073 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1074 1075 return UNCONF; 1076 } 1077 1078 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1079 return 0; 1080 1081 aprint_normal("%s (%s) ", ad->ad_name, hid); 1082 acpi_print_dev(hid); 1083 aprint_normal("at %s", pnp); 1084 1085 return UNCONF; 1086 } 1087 1088 aprint_normal(" (%s", ad->ad_name); 1089 1090 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1091 1092 aprint_normal(", %s", hid); 1093 1094 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1095 1096 if (uid[0] == '\0') 1097 uid = "<null>"; 1098 1099 aprint_normal("-%s", uid); 1100 } 1101 } 1102 1103 aprint_normal(")"); 1104 1105 return UNCONF; 1106 } 1107 1108 /* 1109 * Notify. 1110 */ 1111 static void 1112 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1113 { 1114 struct acpi_softc *sc = acpi_softc; 1115 struct acpi_devnode *ad; 1116 1117 KASSERT(sc != NULL); 1118 KASSERT(aux == NULL); 1119 KASSERT(acpi_active != 0); 1120 1121 if (acpi_suspended != 0) 1122 return; 1123 1124 /* 1125 * System: 0x00 - 0x7F. 1126 * Device: 0x80 - 0xFF. 1127 */ 1128 switch (event) { 1129 1130 case ACPI_NOTIFY_BUS_CHECK: 1131 case ACPI_NOTIFY_DEVICE_CHECK: 1132 case ACPI_NOTIFY_DEVICE_WAKE: 1133 case ACPI_NOTIFY_EJECT_REQUEST: 1134 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1135 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1136 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1137 case ACPI_NOTIFY_POWER_FAULT: 1138 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1139 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1140 case ACPI_NOTIFY_RESERVED: 1141 case ACPI_NOTIFY_LOCALITY_UPDATE: 1142 break; 1143 } 1144 1145 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1146 "%s (%p)\n", event, acpi_name(handle), handle)); 1147 1148 /* 1149 * We deliver notifications only to drivers 1150 * that have been successfully attached and 1151 * that have registered a handler with us. 1152 * The opaque pointer is always the device_t. 1153 */ 1154 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1155 1156 if (ad->ad_device == NULL) 1157 continue; 1158 1159 if (ad->ad_notify == NULL) 1160 continue; 1161 1162 if (ad->ad_handle != handle) 1163 continue; 1164 1165 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1166 1167 return; 1168 } 1169 1170 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1171 "for %s (%p)\n", event, acpi_name(handle), handle); 1172 } 1173 1174 bool 1175 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1176 { 1177 struct acpi_softc *sc = acpi_softc; 1178 1179 KASSERT(sc != NULL); 1180 KASSERT(acpi_active != 0); 1181 1182 if (acpi_suspended != 0) 1183 goto fail; 1184 1185 if (ad == NULL || notify == NULL) 1186 goto fail; 1187 1188 ad->ad_notify = notify; 1189 1190 return true; 1191 1192 fail: 1193 aprint_error_dev(sc->sc_dev, "failed to register notify " 1194 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1195 1196 return false; 1197 } 1198 1199 void 1200 acpi_deregister_notify(struct acpi_devnode *ad) 1201 { 1202 1203 ad->ad_notify = NULL; 1204 } 1205 1206 /* 1207 * Fixed buttons. 1208 */ 1209 static void 1210 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1211 { 1212 struct sysmon_pswitch *smpsw; 1213 ACPI_STATUS rv; 1214 int type; 1215 1216 switch (event) { 1217 1218 case ACPI_EVENT_POWER_BUTTON: 1219 1220 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1221 return; 1222 1223 type = PSWITCH_TYPE_POWER; 1224 smpsw = &sc->sc_smpsw_power; 1225 break; 1226 1227 case ACPI_EVENT_SLEEP_BUTTON: 1228 1229 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1230 return; 1231 1232 type = PSWITCH_TYPE_SLEEP; 1233 smpsw = &sc->sc_smpsw_sleep; 1234 break; 1235 1236 default: 1237 rv = AE_TYPE; 1238 goto fail; 1239 } 1240 1241 smpsw->smpsw_type = type; 1242 smpsw->smpsw_name = device_xname(sc->sc_dev); 1243 1244 if (sysmon_pswitch_register(smpsw) != 0) { 1245 rv = AE_ERROR; 1246 goto fail; 1247 } 1248 1249 AcpiClearEvent(event); 1250 1251 rv = AcpiInstallFixedEventHandler(event, 1252 acpi_fixed_button_handler, smpsw); 1253 1254 if (ACPI_FAILURE(rv)) { 1255 sysmon_pswitch_unregister(smpsw); 1256 goto fail; 1257 } 1258 1259 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1260 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1261 1262 return; 1263 1264 fail: 1265 aprint_error_dev(sc->sc_dev, "failed to register " 1266 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1267 } 1268 1269 static void 1270 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1271 { 1272 struct sysmon_pswitch *smpsw; 1273 ACPI_STATUS rv; 1274 1275 switch (event) { 1276 1277 case ACPI_EVENT_POWER_BUTTON: 1278 smpsw = &sc->sc_smpsw_power; 1279 1280 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1281 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1282 return; 1283 } 1284 1285 break; 1286 1287 case ACPI_EVENT_SLEEP_BUTTON: 1288 smpsw = &sc->sc_smpsw_sleep; 1289 1290 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1291 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1292 return; 1293 } 1294 1295 break; 1296 1297 default: 1298 rv = AE_TYPE; 1299 goto fail; 1300 } 1301 1302 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1303 1304 if (ACPI_SUCCESS(rv)) { 1305 sysmon_pswitch_unregister(smpsw); 1306 return; 1307 } 1308 1309 fail: 1310 aprint_error_dev(sc->sc_dev, "failed to deregister " 1311 "fixed event: %s\n", AcpiFormatException(rv)); 1312 } 1313 1314 static uint32_t 1315 acpi_fixed_button_handler(void *context) 1316 { 1317 static const int handler = OSL_NOTIFY_HANDLER; 1318 struct sysmon_pswitch *smpsw = context; 1319 1320 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1321 1322 return ACPI_INTERRUPT_HANDLED; 1323 } 1324 1325 static void 1326 acpi_fixed_button_pressed(void *context) 1327 { 1328 struct sysmon_pswitch *smpsw = context; 1329 1330 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1331 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1332 "power" : "sleep")); 1333 1334 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1335 } 1336 1337 /* 1338 * Sleep. 1339 */ 1340 static void 1341 acpi_sleep_init(struct acpi_softc *sc) 1342 { 1343 uint8_t a, b, i; 1344 ACPI_STATUS rv; 1345 1346 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1347 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1348 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1349 1350 /* 1351 * Evaluate supported sleep states. 1352 */ 1353 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1354 1355 rv = AcpiGetSleepTypeData(i, &a, &b); 1356 1357 if (ACPI_SUCCESS(rv)) 1358 sc->sc_sleepstates |= __BIT(i); 1359 } 1360 } 1361 1362 /* 1363 * Must be called with interrupts enabled. 1364 */ 1365 void 1366 acpi_enter_sleep_state(int state) 1367 { 1368 struct acpi_softc *sc = acpi_softc; 1369 ACPI_STATUS rv; 1370 1371 if (acpi_softc == NULL) 1372 return; 1373 1374 if (state == sc->sc_sleepstate) 1375 return; 1376 1377 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1378 return; 1379 1380 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1381 1382 switch (state) { 1383 1384 case ACPI_STATE_S0: 1385 sc->sc_sleepstate = ACPI_STATE_S0; 1386 return; 1387 1388 case ACPI_STATE_S1: 1389 case ACPI_STATE_S2: 1390 case ACPI_STATE_S3: 1391 case ACPI_STATE_S4: 1392 1393 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1394 aprint_error_dev(sc->sc_dev, "sleep state " 1395 "S%d is not available\n", state); 1396 return; 1397 } 1398 1399 /* 1400 * Evaluate the _TTS method. This should be done before 1401 * pmf_system_suspend(9) and the evaluation of _PTS. 1402 * We should also re-evaluate this once we return to 1403 * S0 or if we abort the sleep state transition in the 1404 * middle (see ACPI 3.0, section 7.3.6). In reality, 1405 * however, the _TTS method is seldom seen in the field. 1406 */ 1407 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1408 1409 if (ACPI_SUCCESS(rv)) 1410 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1411 1412 if (state != ACPI_STATE_S1 && 1413 pmf_system_suspend(PMF_Q_NONE) != true) { 1414 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1415 break; 1416 } 1417 1418 /* 1419 * This will evaluate the _PTS and _SST methods, 1420 * but unlike the documentation claims, not _GTS, 1421 * which is evaluated in AcpiEnterSleepState(). 1422 * This must be called with interrupts enabled. 1423 */ 1424 rv = AcpiEnterSleepStatePrep(state); 1425 1426 if (ACPI_FAILURE(rv)) { 1427 aprint_error_dev(sc->sc_dev, "failed to prepare " 1428 "S%d: %s\n", state, AcpiFormatException(rv)); 1429 break; 1430 } 1431 1432 /* 1433 * After the _PTS method has been evaluated, we can 1434 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1435 */ 1436 acpi_wakedev_commit(sc, state); 1437 1438 sc->sc_sleepstate = state; 1439 1440 if (state == ACPI_STATE_S1) { 1441 1442 /* 1443 * Before the transition to S1, CPU caches 1444 * must be flushed (see ACPI 4.0, 7.3.4.2). 1445 * 1446 * Note that interrupts must be off before 1447 * calling AcpiEnterSleepState(). Conversely, 1448 * AcpiLeaveSleepState() should always be 1449 * called with interrupts enabled. 1450 */ 1451 acpi_md_OsDisableInterrupt(); 1452 1453 ACPI_FLUSH_CPU_CACHE(); 1454 rv = AcpiEnterSleepState(state); 1455 1456 if (ACPI_FAILURE(rv)) 1457 aprint_error_dev(sc->sc_dev, "failed to " 1458 "enter S1: %s\n", AcpiFormatException(rv)); 1459 1460 /* 1461 * Clear fixed events and disable all GPEs before 1462 * interrupts are enabled. 1463 */ 1464 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1465 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1466 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1467 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1468 AcpiClearEvent(ACPI_EVENT_RTC); 1469 #if (!ACPI_REDUCED_HARDWARE) 1470 AcpiHwDisableAllGpes(); 1471 #endif 1472 1473 acpi_md_OsEnableInterrupt(); 1474 rv = AcpiLeaveSleepState(state); 1475 1476 } else { 1477 1478 (void)acpi_md_sleep(state); 1479 1480 if (state == ACPI_STATE_S4) 1481 AcpiEnable(); 1482 1483 (void)pmf_system_bus_resume(PMF_Q_NONE); 1484 (void)AcpiLeaveSleepState(state); 1485 (void)AcpiSetFirmwareWakingVector(0, 0); 1486 (void)pmf_system_resume(PMF_Q_NONE); 1487 } 1488 1489 /* 1490 * No wake GPEs should be enabled at runtime. 1491 */ 1492 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1493 break; 1494 1495 case ACPI_STATE_S5: 1496 1497 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1498 1499 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1500 1501 if (ACPI_FAILURE(rv)) { 1502 aprint_error_dev(sc->sc_dev, "failed to prepare " 1503 "S%d: %s\n", state, AcpiFormatException(rv)); 1504 break; 1505 } 1506 1507 (void)AcpiDisableAllGpes(); 1508 1509 DELAY(1000000); 1510 1511 sc->sc_sleepstate = state; 1512 acpi_md_OsDisableInterrupt(); 1513 1514 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1515 1516 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1517 1518 break; 1519 } 1520 1521 sc->sc_sleepstate = ACPI_STATE_S0; 1522 1523 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1524 } 1525 1526 /* 1527 * Sysctl. 1528 */ 1529 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1530 { 1531 const struct sysctlnode *rnode, *snode; 1532 int err; 1533 1534 err = sysctl_createv(clog, 0, NULL, &rnode, 1535 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1536 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1537 NULL, 0, NULL, 0, 1538 CTL_HW, CTL_CREATE, CTL_EOL); 1539 1540 if (err != 0) 1541 return; 1542 1543 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1544 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1545 "root", SYSCTL_DESCR("ACPI root pointer"), 1546 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1547 CTL_CREATE, CTL_EOL); 1548 1549 err = sysctl_createv(clog, 0, &rnode, &snode, 1550 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1551 "sleep", SYSCTL_DESCR("ACPI sleep"), 1552 NULL, 0, NULL, 0, 1553 CTL_CREATE, CTL_EOL); 1554 1555 if (err != 0) 1556 return; 1557 1558 (void)sysctl_createv(NULL, 0, &snode, NULL, 1559 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1560 "state", SYSCTL_DESCR("System sleep state"), 1561 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1562 CTL_CREATE, CTL_EOL); 1563 1564 (void)sysctl_createv(NULL, 0, &snode, NULL, 1565 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1566 "states", SYSCTL_DESCR("Supported sleep states"), 1567 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1568 CTL_CREATE, CTL_EOL); 1569 1570 err = sysctl_createv(clog, 0, &rnode, &rnode, 1571 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1572 "stat", SYSCTL_DESCR("ACPI statistics"), 1573 NULL, 0, NULL, 0, 1574 CTL_CREATE, CTL_EOL); 1575 1576 if (err != 0) 1577 return; 1578 1579 (void)sysctl_createv(clog, 0, &rnode, NULL, 1580 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1581 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1582 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1583 CTL_CREATE, CTL_EOL); 1584 1585 (void)sysctl_createv(clog, 0, &rnode, NULL, 1586 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1587 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1588 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1589 CTL_CREATE, CTL_EOL); 1590 1591 (void)sysctl_createv(clog, 0, &rnode, NULL, 1592 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1593 "fixed", SYSCTL_DESCR("Number of fixed events"), 1594 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1595 CTL_CREATE, CTL_EOL); 1596 1597 (void)sysctl_createv(clog, 0, &rnode, NULL, 1598 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1599 "method", SYSCTL_DESCR("Number of methods executed"), 1600 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1601 CTL_CREATE, CTL_EOL); 1602 1603 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1604 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1605 } 1606 1607 static int 1608 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1609 { 1610 struct sysctlnode node; 1611 uint64_t t; 1612 int err, i; 1613 1614 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1615 t += AcpiFixedEventCount[i]; 1616 1617 node = *rnode; 1618 node.sysctl_data = &t; 1619 1620 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1621 1622 if (err || newp == NULL) 1623 return err; 1624 1625 return 0; 1626 } 1627 1628 static int 1629 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1630 { 1631 struct acpi_softc *sc = acpi_softc; 1632 struct sysctlnode node; 1633 int err, t; 1634 1635 if (acpi_softc == NULL) 1636 return ENOSYS; 1637 1638 node = *rnode; 1639 t = sc->sc_sleepstate; 1640 node.sysctl_data = &t; 1641 1642 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1643 1644 if (err || newp == NULL) 1645 return err; 1646 1647 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1648 return EINVAL; 1649 1650 acpi_enter_sleep_state(t); 1651 1652 return 0; 1653 } 1654 1655 static int 1656 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1657 { 1658 struct acpi_softc *sc = acpi_softc; 1659 struct sysctlnode node; 1660 char t[3 * 6 + 1]; 1661 int err; 1662 1663 if (acpi_softc == NULL) 1664 return ENOSYS; 1665 1666 (void)memset(t, '\0', sizeof(t)); 1667 1668 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1669 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1670 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1671 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1672 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1673 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1674 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1675 1676 node = *rnode; 1677 node.sysctl_data = &t; 1678 1679 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1680 1681 if (err || newp == NULL) 1682 return err; 1683 1684 return 0; 1685 } 1686 1687 /* 1688 * Tables. 1689 */ 1690 ACPI_PHYSICAL_ADDRESS 1691 acpi_OsGetRootPointer(void) 1692 { 1693 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1694 1695 /* 1696 * We let MD code handle this since there are multiple ways to do it: 1697 * 1698 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1699 * 1700 * IA-64: Use the EFI. 1701 */ 1702 PhysicalAddress = acpi_md_OsGetRootPointer(); 1703 1704 if (acpi_root_pointer == 0) 1705 acpi_root_pointer = PhysicalAddress; 1706 1707 return PhysicalAddress; 1708 } 1709 1710 static ACPI_TABLE_HEADER * 1711 acpi_map_rsdt(void) 1712 { 1713 ACPI_PHYSICAL_ADDRESS paddr; 1714 ACPI_TABLE_RSDP *rsdp; 1715 1716 paddr = AcpiOsGetRootPointer(); 1717 1718 if (paddr == 0) 1719 return NULL; 1720 1721 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1722 1723 if (rsdp == NULL) 1724 return NULL; 1725 1726 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1727 paddr = rsdp->XsdtPhysicalAddress; 1728 else 1729 paddr = rsdp->RsdtPhysicalAddress; 1730 1731 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1732 1733 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1734 } 1735 1736 /* 1737 * XXX: Refactor to be a generic function that unmaps tables. 1738 */ 1739 static void 1740 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1741 { 1742 1743 if (rsdt == NULL) 1744 return; 1745 1746 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1747 } 1748 1749 /* 1750 * XXX: Refactor to be a generic function that maps tables. 1751 */ 1752 ACPI_STATUS 1753 acpi_madt_map(void) 1754 { 1755 ACPI_STATUS rv; 1756 1757 if (madt_header != NULL) 1758 return AE_ALREADY_EXISTS; 1759 1760 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1761 1762 if (ACPI_FAILURE(rv)) 1763 return rv; 1764 1765 return AE_OK; 1766 } 1767 1768 void 1769 acpi_madt_unmap(void) 1770 { 1771 madt_header = NULL; 1772 } 1773 1774 ACPI_STATUS 1775 acpi_gtdt_map(void) 1776 { 1777 ACPI_STATUS rv; 1778 1779 if (gtdt_header != NULL) 1780 return AE_ALREADY_EXISTS; 1781 1782 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1783 1784 if (ACPI_FAILURE(rv)) 1785 return rv; 1786 1787 return AE_OK; 1788 } 1789 1790 void 1791 acpi_gtdt_unmap(void) 1792 { 1793 gtdt_header = NULL; 1794 } 1795 1796 /* 1797 * XXX: Refactor to be a generic function that walks tables. 1798 */ 1799 void 1800 acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1801 { 1802 ACPI_SUBTABLE_HEADER *hdrp; 1803 char *madtend, *where; 1804 1805 madtend = (char *)madt_header + madt_header->Length; 1806 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1807 1808 while (where < madtend) { 1809 1810 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1811 1812 if (ACPI_FAILURE(func(hdrp, aux))) 1813 break; 1814 1815 where += hdrp->Length; 1816 } 1817 } 1818 1819 void 1820 acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1821 { 1822 ACPI_GTDT_HEADER *hdrp; 1823 char *gtdtend, *where; 1824 1825 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1826 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1827 1828 while (where < gtdtend) { 1829 1830 hdrp = (ACPI_GTDT_HEADER *)where; 1831 1832 if (ACPI_FAILURE(func(hdrp, aux))) 1833 break; 1834 1835 where += hdrp->Length; 1836 } 1837 } 1838 1839 /* 1840 * Miscellaneous. 1841 */ 1842 static bool 1843 acpi_is_scope(struct acpi_devnode *ad) 1844 { 1845 int i; 1846 1847 /* 1848 * Return true if the node is a root scope. 1849 */ 1850 if (ad->ad_parent == NULL) 1851 return false; 1852 1853 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1854 return false; 1855 1856 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1857 1858 if (acpi_scopes[i] == NULL) 1859 continue; 1860 1861 if (ad->ad_handle == acpi_scopes[i]) 1862 return true; 1863 } 1864 1865 return false; 1866 } 1867 1868 bool 1869 acpi_device_present(ACPI_HANDLE handle) 1870 { 1871 ACPI_STATUS rv; 1872 ACPI_INTEGER sta; 1873 1874 rv = acpi_eval_integer(handle, "_STA", &sta); 1875 1876 if (ACPI_FAILURE(rv)) { 1877 /* No _STA method -> must be there */ 1878 return rv == AE_NOT_FOUND; 1879 } 1880 1881 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1882 } 1883 1884 /* 1885 * ACPIVERBOSE. 1886 */ 1887 void 1888 acpi_load_verbose(void) 1889 { 1890 1891 if (acpi_verbose_loaded == 0) 1892 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1893 } 1894 1895 void 1896 acpi_print_verbose_stub(struct acpi_softc *sc) 1897 { 1898 1899 acpi_load_verbose(); 1900 1901 if (acpi_verbose_loaded != 0) 1902 acpi_print_verbose(sc); 1903 } 1904 1905 void 1906 acpi_print_dev_stub(const char *pnpstr) 1907 { 1908 1909 acpi_load_verbose(); 1910 1911 if (acpi_verbose_loaded != 0) 1912 acpi_print_dev(pnpstr); 1913 } 1914 1915 MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1916 1917 /* 1918 * ACPI_ACTIVATE_DEV. 1919 */ 1920 static void 1921 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1922 { 1923 1924 #ifndef ACPI_ACTIVATE_DEV 1925 return; 1926 } 1927 #else 1928 static const int valid = ACPI_VALID_HID; 1929 ACPI_DEVICE_INFO *newdi; 1930 ACPI_STATUS rv; 1931 1932 1933 /* 1934 * If the device is valid and present, 1935 * but not enabled, try to activate it. 1936 */ 1937 if (((*di)->Valid & valid) != valid) 1938 return; 1939 1940 if (!acpi_device_present(handle)) 1941 return; 1942 1943 rv = acpi_allocate_resources(handle); 1944 1945 if (ACPI_FAILURE(rv)) 1946 goto fail; 1947 1948 rv = AcpiGetObjectInfo(handle, &newdi); 1949 1950 if (ACPI_FAILURE(rv)) 1951 goto fail; 1952 1953 ACPI_FREE(*di); 1954 *di = newdi; 1955 1956 aprint_verbose_dev(acpi_softc->sc_dev, 1957 "%s activated\n", (*di)->HardwareId.String); 1958 1959 return; 1960 1961 fail: 1962 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1963 "activate %s\n", (*di)->HardwareId.String); 1964 } 1965 1966 /* 1967 * XXX: This very incomplete. 1968 */ 1969 ACPI_STATUS 1970 acpi_allocate_resources(ACPI_HANDLE handle) 1971 { 1972 ACPI_BUFFER bufp, bufc, bufn; 1973 ACPI_RESOURCE *resp, *resc, *resn; 1974 ACPI_RESOURCE_IRQ *irq; 1975 #if 0 1976 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1977 #endif 1978 ACPI_STATUS rv; 1979 uint delta; 1980 1981 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1982 if (ACPI_FAILURE(rv)) 1983 goto out; 1984 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1985 if (ACPI_FAILURE(rv)) { 1986 goto out1; 1987 } 1988 1989 bufn.Length = 1000; 1990 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1991 resp = bufp.Pointer; 1992 resc = bufc.Pointer; 1993 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1994 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1995 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1996 resp = ACPI_NEXT_RESOURCE(resp); 1997 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1998 break; 1999 /* Found identical Id */ 2000 resn->Type = resc->Type; 2001 switch (resc->Type) { 2002 case ACPI_RESOURCE_TYPE_IRQ: 2003 memcpy(&resn->Data, &resp->Data, 2004 sizeof(ACPI_RESOURCE_IRQ)); 2005 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2006 irq->Interrupts[0] = 2007 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2008 Interrupts[irq->InterruptCount-1]; 2009 irq->InterruptCount = 1; 2010 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2011 break; 2012 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2013 memcpy(&resn->Data, &resp->Data, 2014 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2015 #if 0 2016 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2017 /* 2018 * XXX: Not duplicating the interrupt logic above 2019 * because its not clear what it accomplishes. 2020 */ 2021 xirq->Interrupts[0] = 2022 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2023 Interrupts[irq->NumberOfInterrupts-1]; 2024 xirq->NumberOfInterrupts = 1; 2025 #endif 2026 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2027 break; 2028 case ACPI_RESOURCE_TYPE_IO: 2029 memcpy(&resn->Data, &resp->Data, 2030 sizeof(ACPI_RESOURCE_IO)); 2031 resn->Length = resp->Length; 2032 break; 2033 default: 2034 aprint_error_dev(acpi_softc->sc_dev, 2035 "%s: invalid type %u\n", __func__, resc->Type); 2036 rv = AE_BAD_DATA; 2037 goto out2; 2038 } 2039 resc = ACPI_NEXT_RESOURCE(resc); 2040 resn = ACPI_NEXT_RESOURCE(resn); 2041 resp = ACPI_NEXT_RESOURCE(resp); 2042 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2043 if (delta >= 2044 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2045 bufn.Length *= 2; 2046 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2047 M_ACPI, M_WAITOK); 2048 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2049 delta); 2050 } 2051 } 2052 2053 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2054 aprint_error_dev(acpi_softc->sc_dev, 2055 "%s: resc not exhausted\n", __func__); 2056 rv = AE_BAD_DATA; 2057 goto out3; 2058 } 2059 2060 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2061 rv = AcpiSetCurrentResources(handle, &bufn); 2062 2063 if (ACPI_FAILURE(rv)) 2064 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2065 "resources: %s\n", __func__, AcpiFormatException(rv)); 2066 2067 out3: 2068 free(bufn.Pointer, M_ACPI); 2069 out2: 2070 ACPI_FREE(bufc.Pointer); 2071 out1: 2072 ACPI_FREE(bufp.Pointer); 2073 out: 2074 return rv; 2075 } 2076 2077 #endif /* ACPI_ACTIVATE_DEV */ 2078