acpi.c revision 1.293
1 /* $NetBSD: acpi.c,v 1.293 2021/08/07 16:19:09 thorpej 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 1.293 2021/08/07 16:19:09 thorpej Exp $"); 104 105 #include "pci.h" 106 #include "opt_acpi.h" 107 #include "opt_pcifixup.h" 108 109 #include <sys/param.h> 110 #include <sys/device.h> 111 #include <sys/kernel.h> 112 #include <sys/kmem.h> 113 #include <sys/malloc.h> 114 #include <sys/module.h> 115 #include <sys/mutex.h> 116 #include <sys/sysctl.h> 117 #include <sys/systm.h> 118 #include <sys/timetc.h> 119 120 #include <dev/acpi/acpireg.h> 121 #include <dev/acpi/acpivar.h> 122 #include <dev/acpi/acpi_mcfg.h> 123 #include <dev/acpi/acpi_osd.h> 124 #include <dev/acpi/acpi_pci.h> 125 #include <dev/acpi/acpi_power.h> 126 #include <dev/acpi/acpi_timer.h> 127 #include <dev/acpi/acpi_wakedev.h> 128 129 #include <machine/acpi_machdep.h> 130 131 #include "ioconf.h" 132 133 #define _COMPONENT ACPI_BUS_COMPONENT 134 ACPI_MODULE_NAME ("acpi") 135 136 /* 137 * The acpi_active variable is set when the ACPI subsystem is active. 138 * Machine-dependent code may wish to skip other steps (such as attaching 139 * subsystems that ACPI supercedes) when ACPI is active. 140 */ 141 int acpi_active = 0; 142 int acpi_suspended = 0; 143 int acpi_force_load = 0; 144 int acpi_verbose_loaded = 0; 145 146 struct acpi_softc *acpi_softc = NULL; 147 static uint64_t acpi_root_pointer; 148 extern kmutex_t acpi_interrupt_list_mtx; 149 static ACPI_HANDLE acpi_scopes[4]; 150 ACPI_TABLE_HEADER *madt_header; 151 ACPI_TABLE_HEADER *gtdt_header; 152 153 /* 154 * This structure provides a context for the ACPI 155 * namespace walk performed in acpi_build_tree(). 156 */ 157 struct acpi_walkcontext { 158 struct acpi_softc *aw_sc; 159 struct acpi_devnode *aw_parent; 160 }; 161 162 /* 163 * Ignored HIDs. 164 */ 165 static const char * const acpi_ignored_ids[] = { 166 #if defined(i386) || defined(x86_64) 167 "ACPI0007", /* ACPI CPUs do not attach to acpi(4) */ 168 "PNP0000", /* AT interrupt controller is handled internally */ 169 "PNP0001", /* EISA interrupt controller is handled internally */ 170 "PNP0200", /* AT DMA controller is handled internally */ 171 "PNP0A??", /* PCI Busses are handled internally */ 172 "PNP0B00", /* AT RTC is handled internally */ 173 "PNP0C02", /* PnP motherboard resources */ 174 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 175 #endif 176 #if defined(x86_64) 177 "PNP0C04", /* FPU is handled internally */ 178 #endif 179 #if defined(__aarch64__) 180 "ACPI0004", /* ACPI module devices are handled internally */ 181 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 182 #endif 183 NULL 184 }; 185 186 /* 187 * Devices that should be attached early. 188 */ 189 static const char * const acpi_early_ids[] = { 190 "PNP0C09", /* acpiec(4) */ 191 NULL 192 }; 193 194 static int acpi_match(device_t, cfdata_t, void *); 195 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 196 static void acpi_attach(device_t, device_t, void *); 197 static int acpi_detach(device_t, int); 198 static void acpi_childdet(device_t, device_t); 199 static bool acpi_suspend(device_t, const pmf_qual_t *); 200 static bool acpi_resume(device_t, const pmf_qual_t *); 201 202 static void acpi_build_tree(struct acpi_softc *); 203 static void acpi_config_tree(struct acpi_softc *); 204 static void acpi_config_dma(struct acpi_softc *); 205 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 206 void *, void **); 207 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 208 void *, void **); 209 static void acpi_make_name(struct acpi_devnode *, uint32_t); 210 211 static int acpi_rescan(device_t, const char *, const int *); 212 static void acpi_rescan_early(struct acpi_softc *); 213 static void acpi_rescan_nodes(struct acpi_softc *); 214 static void acpi_rescan_capabilities(device_t); 215 static int acpi_print(void *aux, const char *); 216 217 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 218 219 static void acpi_register_fixed_button(struct acpi_softc *, int); 220 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 221 static uint32_t acpi_fixed_button_handler(void *); 222 static void acpi_fixed_button_pressed(void *); 223 224 static void acpi_sleep_init(struct acpi_softc *); 225 226 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_PROTO); 227 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_PROTO); 228 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_PROTO); 229 230 static bool acpi_is_scope(struct acpi_devnode *); 231 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 232 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 233 234 void acpi_print_verbose_stub(struct acpi_softc *); 235 void acpi_print_dev_stub(const char *); 236 237 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 238 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 239 240 void (*acpi_print_verbose)(struct acpi_softc *) = acpi_print_verbose_stub; 241 void (*acpi_print_dev)(const char *) = acpi_print_dev_stub; 242 243 bus_dma_tag_t acpi_default_dma_tag(struct acpi_softc *, struct acpi_devnode *); 244 bus_dma_tag_t acpi_default_dma64_tag(struct acpi_softc *, struct acpi_devnode *); 245 pci_chipset_tag_t acpi_default_pci_chipset_tag(struct acpi_softc *, int, int); 246 247 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 248 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 249 250 /* 251 * Probe for ACPI support. 252 * 253 * This is called by the machine-dependent ACPI front-end. 254 * Note: this is not an autoconfiguration interface function. 255 */ 256 int 257 acpi_probe(void) 258 { 259 ACPI_TABLE_HEADER *rsdt; 260 ACPI_STATUS rv; 261 int quirks; 262 263 if (acpi_softc != NULL) 264 panic("%s: already probed", __func__); 265 266 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 267 268 /* 269 * Start up ACPICA. 270 */ 271 AcpiGbl_EnableInterpreterSlack = true; 272 273 rv = AcpiInitializeSubsystem(); 274 275 if (ACPI_FAILURE(rv)) { 276 aprint_error("%s: failed to initialize subsystem\n", __func__); 277 return 0; 278 } 279 280 /* 281 * Allocate space for RSDT/XSDT and DSDT, 282 * but allow resizing if more tables exist. 283 */ 284 rv = AcpiInitializeTables(NULL, 2, true); 285 286 if (ACPI_FAILURE(rv)) { 287 aprint_error("%s: failed to initialize tables\n", __func__); 288 goto fail; 289 } 290 291 rv = AcpiLoadTables(); 292 293 if (ACPI_FAILURE(rv)) { 294 aprint_error("%s: failed to load tables\n", __func__); 295 goto fail; 296 } 297 298 rsdt = acpi_map_rsdt(); 299 300 if (rsdt == NULL) { 301 aprint_error("%s: failed to map RSDT\n", __func__); 302 goto fail; 303 } 304 305 quirks = acpi_find_quirks(); 306 307 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_BROKEN) != 0) { 308 309 aprint_normal("ACPI: BIOS is listed as broken:\n"); 310 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 311 "AslId <%4.4s,%08x>\n", rsdt->OemId, rsdt->OemTableId, 312 rsdt->OemRevision, rsdt->AslCompilerId, 313 rsdt->AslCompilerRevision); 314 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 315 316 acpi_unmap_rsdt(rsdt); 317 goto fail; 318 } 319 320 if (acpi_force_load == 0 && (quirks & ACPI_QUIRK_OLDBIOS) != 0) { 321 322 aprint_normal("ACPI: BIOS is too old (%s). " 323 "Set acpi_force_load to use.\n", 324 pmf_get_platform("bios-date")); 325 326 acpi_unmap_rsdt(rsdt); 327 goto fail; 328 } 329 330 acpi_unmap_rsdt(rsdt); 331 332 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 333 334 if (ACPI_FAILURE(rv)) { 335 aprint_error("%s: failed to enable subsystem\n", __func__); 336 goto fail; 337 } 338 339 return 1; 340 341 fail: 342 (void)AcpiTerminate(); 343 344 return 0; 345 } 346 347 void 348 acpi_disable(void) 349 { 350 351 if (acpi_softc == NULL) 352 return; 353 354 KASSERT(acpi_active != 0); 355 356 if (AcpiGbl_FADT.SmiCommand != 0) 357 AcpiDisable(); 358 } 359 360 int 361 acpi_check(device_t parent, const char *ifattr) 362 { 363 return config_search(parent, NULL, 364 CFARGS(.submatch = acpi_submatch, 365 .iattr = ifattr)) != NULL; 366 } 367 368 int 369 acpi_reset(void) 370 { 371 struct acpi_softc *sc = acpi_softc; 372 ACPI_GENERIC_ADDRESS *ResetReg; 373 ACPI_PCI_ID PciId; 374 ACPI_STATUS status; 375 376 if (sc == NULL) 377 return ENXIO; 378 379 ResetReg = &AcpiGbl_FADT.ResetRegister; 380 381 /* Check if the reset register is supported */ 382 if (!(AcpiGbl_FADT.Flags & ACPI_FADT_RESET_REGISTER) || 383 !ResetReg->Address) { 384 return ENOENT; 385 } 386 387 switch (ResetReg->SpaceId) { 388 case ACPI_ADR_SPACE_PCI_CONFIG: 389 PciId.Segment = PciId.Bus = 0; 390 PciId.Device = ACPI_GAS_PCI_DEV(ResetReg->Address); 391 PciId.Function = ACPI_GAS_PCI_FUNC(ResetReg->Address); 392 status = AcpiOsWritePciConfiguration(&PciId, 393 ACPI_GAS_PCI_REGOFF(ResetReg->Address), 394 AcpiGbl_FADT.ResetValue, ResetReg->BitWidth); 395 break; 396 case ACPI_ADR_SPACE_SYSTEM_IO: 397 case ACPI_ADR_SPACE_SYSTEM_MEMORY: 398 status = AcpiReset(); 399 break; 400 default: 401 status = AE_TYPE; 402 break; 403 } 404 405 return ACPI_FAILURE(status) ? EIO : 0; 406 } 407 408 /* 409 * Autoconfiguration. 410 */ 411 static int 412 acpi_match(device_t parent, cfdata_t match, void *aux) 413 { 414 /* 415 * XXX: Nada; MD code has called acpi_probe(). 416 */ 417 return 1; 418 } 419 420 static int 421 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 422 { 423 struct cfattach *ca; 424 425 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 426 427 return (ca == &acpi_ca); 428 } 429 430 static void 431 acpi_attach(device_t parent, device_t self, void *aux) 432 { 433 struct acpi_softc *sc = device_private(self); 434 struct acpibus_attach_args *aa = aux; 435 ACPI_TABLE_HEADER *rsdt, *hdr; 436 ACPI_STATUS rv; 437 int i; 438 439 aprint_naive("\n"); 440 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 441 442 if (acpi_softc != NULL) 443 panic("%s: already attached", __func__); 444 445 rsdt = acpi_map_rsdt(); 446 447 if (rsdt == NULL) 448 aprint_error_dev(self, "X/RSDT: Not found\n"); 449 else { 450 aprint_verbose_dev(self, 451 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 452 rsdt->OemId, rsdt->OemTableId, 453 rsdt->OemRevision, 454 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 455 } 456 457 acpi_unmap_rsdt(rsdt); 458 459 sc->sc_dev = self; 460 sc->sc_root = NULL; 461 462 sc->sc_sleepstate = ACPI_STATE_S0; 463 sc->sc_quirks = acpi_find_quirks(); 464 465 sysmon_power_settype("acpi"); 466 467 sc->sc_iot = aa->aa_iot; 468 sc->sc_memt = aa->aa_memt; 469 sc->sc_pciflags = aa->aa_pciflags; 470 sc->sc_ic = aa->aa_ic; 471 sc->sc_dmat = aa->aa_dmat; 472 sc->sc_dmat64 = aa->aa_dmat64; 473 474 SIMPLEQ_INIT(&sc->ad_head); 475 476 acpi_softc = sc; 477 478 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 479 aprint_error_dev(self, "couldn't establish power handler\n"); 480 481 /* 482 * Bring ACPICA on-line. 483 */ 484 485 rv = AcpiEnableSubsystem(ACPI_FULL_INITIALIZATION); 486 487 if (ACPI_FAILURE(rv)) 488 goto fail; 489 490 /* 491 * Early initialization of acpiec(4) via ECDT. 492 */ 493 config_found(self, aa, NULL, 494 CFARGS(.iattr = "acpiecdtbus")); 495 496 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 497 498 if (ACPI_FAILURE(rv)) 499 goto fail; 500 501 /* 502 * Scan the namespace and build our device tree. 503 */ 504 acpi_build_tree(sc); 505 506 #if NPCI > 0 507 /* 508 * Probe MCFG table 509 */ 510 acpimcfg_probe(sc); 511 #endif 512 513 acpi_md_callback(sc); 514 515 /* 516 * Early initialization of the _PDC control method 517 * that may load additional SSDT tables dynamically. 518 */ 519 (void)acpi_md_pdc(); 520 521 /* 522 * Install global notify handlers. 523 */ 524 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 525 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 526 527 if (ACPI_FAILURE(rv)) 528 goto fail; 529 530 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 531 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 532 533 if (ACPI_FAILURE(rv)) 534 goto fail; 535 536 acpi_active = 1; 537 538 if (!AcpiGbl_ReducedHardware) { 539 /* Show SCI interrupt. */ 540 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 541 AcpiGbl_FADT.SciInterrupt); 542 543 /* 544 * Install fixed-event handlers. 545 */ 546 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 547 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 548 } 549 550 /* 551 * Load drivers that operate on System Description Tables. 552 */ 553 for (i = 0; i < AcpiGbl_RootTableList.CurrentTableCount; ++i) { 554 rv = AcpiGetTableByIndex(i, &hdr); 555 if (ACPI_FAILURE(rv)) { 556 continue; 557 } 558 config_found(sc->sc_dev, hdr, NULL, 559 CFARGS(.iattr = "acpisdtbus")); 560 AcpiPutTable(hdr); 561 } 562 563 acpitimer_init(sc); 564 acpi_config_tree(sc); 565 acpi_sleep_init(sc); 566 567 #ifdef ACPI_DEBUG 568 acpi_debug_init(); 569 #endif 570 571 /* 572 * Print debug information. 573 */ 574 acpi_print_verbose(sc); 575 576 return; 577 578 fail: 579 aprint_error("%s: failed to initialize ACPI: %s\n", 580 __func__, AcpiFormatException(rv)); 581 } 582 583 /* 584 * XXX: This is incomplete. 585 */ 586 static int 587 acpi_detach(device_t self, int flags) 588 { 589 struct acpi_softc *sc = device_private(self); 590 ACPI_STATUS rv; 591 int rc; 592 593 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 594 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 595 596 if (ACPI_FAILURE(rv)) 597 return EBUSY; 598 599 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 600 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 601 602 if (ACPI_FAILURE(rv)) 603 return EBUSY; 604 605 if ((rc = config_detach_children(self, flags)) != 0) 606 return rc; 607 608 if ((rc = acpitimer_detach()) != 0) 609 return rc; 610 611 if (!AcpiGbl_ReducedHardware) { 612 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 613 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 614 } 615 616 pmf_device_deregister(self); 617 618 acpi_softc = NULL; 619 620 return 0; 621 } 622 623 static void 624 acpi_childdet(device_t self, device_t child) 625 { 626 struct acpi_softc *sc = device_private(self); 627 struct acpi_devnode *ad; 628 629 if (sc->sc_apmbus == child) 630 sc->sc_apmbus = NULL; 631 632 if (sc->sc_hpet == child) 633 sc->sc_hpet = NULL; 634 635 if (sc->sc_wdrt == child) 636 sc->sc_wdrt = NULL; 637 638 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 639 640 if (ad->ad_device == child) 641 ad->ad_device = NULL; 642 } 643 } 644 645 static bool 646 acpi_suspend(device_t dv, const pmf_qual_t *qual) 647 { 648 649 acpi_suspended = 1; 650 651 return true; 652 } 653 654 static bool 655 acpi_resume(device_t dv, const pmf_qual_t *qual) 656 { 657 658 acpi_suspended = 0; 659 660 return true; 661 } 662 663 /* 664 * Namespace scan. 665 */ 666 static void 667 acpi_build_tree(struct acpi_softc *sc) 668 { 669 struct acpi_walkcontext awc; 670 671 /* 672 * Get the root scope handles. 673 */ 674 KASSERT(__arraycount(acpi_scopes) == 4); 675 676 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_PR_", &acpi_scopes[0]); 677 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &acpi_scopes[1]); 678 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SI_", &acpi_scopes[2]); 679 (void)AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_TZ_", &acpi_scopes[3]); 680 681 /* 682 * Make the root node. 683 */ 684 awc.aw_sc = sc; 685 awc.aw_parent = NULL; 686 687 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 688 689 KASSERT(sc->sc_root == NULL); 690 KASSERT(awc.aw_parent != NULL); 691 692 sc->sc_root = awc.aw_parent; 693 694 /* 695 * Build the internal namespace. 696 */ 697 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 698 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 699 700 /* 701 * Scan the internal namespace. 702 */ 703 (void)acpi_pcidev_scan(sc->sc_root); 704 } 705 706 static void 707 acpi_config_tree(struct acpi_softc *sc) 708 { 709 /* 710 * Assign bus_dma resources 711 */ 712 acpi_config_dma(sc); 713 714 /* 715 * Configure all everything found "at acpi?". 716 */ 717 (void)acpi_rescan(sc->sc_dev, NULL, NULL); 718 719 /* 720 * Update GPE information. 721 * 722 * Note that this must be called after 723 * all GPE handlers have been installed. 724 */ 725 (void)AcpiUpdateAllGpes(); 726 727 /* 728 * Defer rest of the configuration. 729 */ 730 (void)config_defer(sc->sc_dev, acpi_rescan_capabilities); 731 } 732 733 static void 734 acpi_config_dma(struct acpi_softc *sc) 735 { 736 struct acpi_devnode *ad; 737 738 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 739 740 if (ad->ad_device != NULL) 741 continue; 742 743 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 744 continue; 745 746 ad->ad_dmat = acpi_get_dma_tag(sc, ad); 747 ad->ad_dmat64 = acpi_get_dma64_tag(sc, ad); 748 } 749 } 750 751 static ACPI_STATUS 752 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 753 void *context, void **status) 754 { 755 struct acpi_walkcontext *awc = context; 756 struct acpi_softc *sc = awc->aw_sc; 757 struct acpi_devnode *ad; 758 ACPI_DEVICE_INFO *devinfo; 759 ACPI_OBJECT_TYPE type; 760 ACPI_STATUS rv; 761 762 rv = AcpiGetObjectInfo(handle, &devinfo); 763 764 if (ACPI_FAILURE(rv)) 765 return AE_OK; /* Do not terminate the walk. */ 766 767 type = devinfo->Type; 768 769 switch (type) { 770 771 case ACPI_TYPE_DEVICE: 772 acpi_activate_device(handle, &devinfo); 773 /* FALLTHROUGH */ 774 775 case ACPI_TYPE_PROCESSOR: 776 case ACPI_TYPE_THERMAL: 777 case ACPI_TYPE_POWER: 778 779 ad = kmem_zalloc(sizeof(*ad), KM_SLEEP); 780 781 ad->ad_device = NULL; 782 ad->ad_notify = NULL; 783 ad->ad_pciinfo = NULL; 784 ad->ad_wakedev = NULL; 785 786 ad->ad_type = type; 787 ad->ad_handle = handle; 788 ad->ad_devinfo = devinfo; 789 790 ad->ad_root = sc->sc_dev; 791 ad->ad_parent = awc->aw_parent; 792 793 acpi_match_node_init(ad); 794 acpi_make_name(ad, devinfo->Name); 795 796 /* 797 * Identify wake GPEs from the _PRW. Note that 798 * AcpiUpdateAllGpes() must be called afterwards. 799 */ 800 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) 801 acpi_wakedev_init(ad); 802 803 SIMPLEQ_INIT(&ad->ad_child_head); 804 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 805 806 if (ad->ad_parent != NULL) { 807 808 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 809 ad, ad_child_list); 810 } 811 812 awc->aw_parent = ad; 813 break; 814 815 default: 816 ACPI_FREE(devinfo); 817 break; 818 } 819 820 return AE_OK; 821 } 822 823 static ACPI_STATUS 824 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 825 void *context, void **status) 826 { 827 struct acpi_walkcontext *awc = context; 828 829 KASSERT(awc != NULL); 830 KASSERT(awc->aw_parent != NULL); 831 832 if (handle == awc->aw_parent->ad_handle) 833 awc->aw_parent = awc->aw_parent->ad_parent; 834 835 return AE_OK; 836 } 837 838 static void 839 acpi_make_name(struct acpi_devnode *ad, uint32_t name) 840 { 841 ACPI_NAME_UNION *anu; 842 int clear, i; 843 844 anu = (ACPI_NAME_UNION *)&name; 845 ad->ad_name[4] = '\0'; 846 847 for (i = 3, clear = 0; i >= 0; i--) { 848 849 if (clear == 0 && anu->Ascii[i] == '_') 850 ad->ad_name[i] = '\0'; 851 else { 852 ad->ad_name[i] = anu->Ascii[i]; 853 clear = 1; 854 } 855 } 856 857 if (ad->ad_name[0] == '\0') 858 ad->ad_name[0] = '_'; 859 } 860 861 bus_dma_tag_t 862 acpi_default_dma_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 863 { 864 return sc->sc_dmat; 865 } 866 __weak_alias(acpi_get_dma_tag,acpi_default_dma_tag); 867 868 bus_dma_tag_t 869 acpi_default_dma64_tag(struct acpi_softc *sc, struct acpi_devnode *ad) 870 { 871 return sc->sc_dmat64; 872 } 873 __weak_alias(acpi_get_dma64_tag,acpi_default_dma64_tag); 874 875 pci_chipset_tag_t 876 acpi_default_pci_chipset_tag(struct acpi_softc *sc, int seg, int bbn) 877 { 878 return NULL; 879 } 880 __weak_alias(acpi_get_pci_chipset_tag,acpi_default_pci_chipset_tag); 881 882 /* 883 * Device attachment. 884 */ 885 static int 886 acpi_rescan(device_t self, const char *ifattr, const int *locators) 887 { 888 struct acpi_softc *sc = device_private(self); 889 struct acpi_attach_args aa; 890 891 /* 892 * Try to attach hpet(4) first via a specific table. 893 */ 894 aa.aa_memt = sc->sc_memt; 895 896 if (ifattr_match(ifattr, "acpihpetbus") && sc->sc_hpet == NULL) { 897 sc->sc_hpet = config_found(sc->sc_dev, &aa, NULL, 898 CFARGS(.iattr = "acpihpetbus")); 899 } 900 901 /* 902 * A two-pass scan for acpinodebus. 903 */ 904 if (ifattr_match(ifattr, "acpinodebus")) { 905 acpi_rescan_early(sc); 906 acpi_rescan_nodes(sc); 907 } 908 909 /* 910 * Attach APM emulation and acpiwdrt(4). 911 */ 912 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 913 sc->sc_apmbus = config_found(sc->sc_dev, NULL, NULL, 914 CFARGS(.iattr = "acpiapmbus")); 915 } 916 917 if (ifattr_match(ifattr, "acpiwdrtbus") && sc->sc_wdrt == NULL) { 918 sc->sc_wdrt = config_found(sc->sc_dev, NULL, NULL, 919 CFARGS(.iattr = "acpiwdrtbus")); 920 } 921 922 return 0; 923 } 924 925 static void 926 acpi_rescan_early(struct acpi_softc *sc) 927 { 928 struct acpi_attach_args aa; 929 struct acpi_devnode *ad; 930 931 /* 932 * First scan for devices such as acpiec(4) that 933 * should be always attached before anything else. 934 * We want these devices to attach regardless of 935 * the device status and other restrictions. 936 */ 937 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 938 939 if (ad->ad_device != NULL) 940 continue; 941 942 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 943 continue; 944 945 if (acpi_match_hid(ad->ad_devinfo, acpi_early_ids) == 0) 946 continue; 947 948 KASSERT(ad->ad_handle != NULL); 949 950 aa.aa_node = ad; 951 aa.aa_iot = sc->sc_iot; 952 aa.aa_memt = sc->sc_memt; 953 if (ad->ad_pciinfo != NULL) { 954 aa.aa_pc = ad->ad_pciinfo->ap_pc; 955 aa.aa_pciflags = sc->sc_pciflags; 956 } 957 aa.aa_ic = sc->sc_ic; 958 aa.aa_dmat = ad->ad_dmat; 959 aa.aa_dmat64 = ad->ad_dmat64; 960 961 ad->ad_device = config_found(sc->sc_dev, &aa, acpi_print, 962 CFARGS(.iattr = "acpinodebus", 963 .devhandle = devhandle_from_acpi(ad->ad_handle))); 964 } 965 } 966 967 static void 968 acpi_rescan_nodes(struct acpi_softc *sc) 969 { 970 const char * const hpet_ids[] = { "PNP0103", NULL }; 971 struct acpi_attach_args aa; 972 struct acpi_devnode *ad; 973 ACPI_DEVICE_INFO *di; 974 975 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 976 977 if (ad->ad_device != NULL) 978 continue; 979 980 /* 981 * There is a bug in ACPICA: it defines the type 982 * of the scopes incorrectly for its own reasons. 983 */ 984 if (acpi_is_scope(ad) != false) 985 continue; 986 987 di = ad->ad_devinfo; 988 989 /* 990 * We only attach devices which are present, enabled, and 991 * functioning properly. However, if a device is enabled, 992 * it is decoding resources and we should claim these, 993 * if possible. This requires changes to bus_space(9). 994 */ 995 if (di->Type == ACPI_TYPE_DEVICE && 996 !acpi_device_present(ad->ad_handle)) { 997 continue; 998 } 999 1000 if (di->Type == ACPI_TYPE_POWER) 1001 continue; 1002 1003 if (di->Type == ACPI_TYPE_PROCESSOR) 1004 continue; 1005 1006 if (acpi_match_hid(di, acpi_early_ids) != 0) 1007 continue; 1008 1009 if (acpi_match_hid(di, acpi_ignored_ids) != 0) 1010 continue; 1011 1012 if (acpi_match_hid(di, hpet_ids) != 0 && sc->sc_hpet != NULL) 1013 continue; 1014 1015 KASSERT(ad->ad_handle != NULL); 1016 1017 aa.aa_node = ad; 1018 aa.aa_iot = sc->sc_iot; 1019 aa.aa_memt = sc->sc_memt; 1020 if (ad->ad_pciinfo != NULL) { 1021 aa.aa_pc = ad->ad_pciinfo->ap_pc; 1022 aa.aa_pciflags = sc->sc_pciflags; 1023 } 1024 aa.aa_ic = sc->sc_ic; 1025 aa.aa_dmat = ad->ad_dmat; 1026 aa.aa_dmat64 = ad->ad_dmat64; 1027 1028 ad->ad_device = config_found(sc->sc_dev, &aa, acpi_print, 1029 CFARGS(.iattr = "acpinodebus", 1030 .devhandle = devhandle_from_acpi(ad->ad_handle))); 1031 } 1032 } 1033 1034 static void 1035 acpi_rescan_capabilities(device_t self) 1036 { 1037 struct acpi_softc *sc = device_private(self); 1038 struct acpi_devnode *ad; 1039 ACPI_HANDLE tmp; 1040 ACPI_STATUS rv; 1041 1042 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1043 1044 if (ad->ad_devinfo->Type != ACPI_TYPE_DEVICE) 1045 continue; 1046 1047 /* 1048 * Scan power resource capabilities. 1049 * 1050 * If any power states are supported, 1051 * at least _PR0 and _PR3 must be present. 1052 */ 1053 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1054 1055 if (ACPI_SUCCESS(rv)) { 1056 ad->ad_flags |= ACPI_DEVICE_POWER; 1057 acpi_power_add(ad); 1058 } 1059 1060 /* 1061 * Scan wake-up capabilities. 1062 */ 1063 if (ad->ad_wakedev != NULL) { 1064 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1065 acpi_wakedev_add(ad); 1066 } 1067 1068 /* 1069 * Scan docking stations. 1070 */ 1071 rv = AcpiGetHandle(ad->ad_handle, "_DCK", &tmp); 1072 1073 if (ACPI_SUCCESS(rv)) 1074 ad->ad_flags |= ACPI_DEVICE_DOCK; 1075 1076 /* 1077 * Scan devices that are ejectable. 1078 */ 1079 rv = AcpiGetHandle(ad->ad_handle, "_EJ0", &tmp); 1080 1081 if (ACPI_SUCCESS(rv)) 1082 ad->ad_flags |= ACPI_DEVICE_EJECT; 1083 } 1084 } 1085 1086 static int 1087 acpi_print(void *aux, const char *pnp) 1088 { 1089 struct acpi_attach_args *aa = aux; 1090 struct acpi_devnode *ad; 1091 const char *hid, *uid; 1092 ACPI_DEVICE_INFO *di; 1093 1094 ad = aa->aa_node; 1095 di = ad->ad_devinfo; 1096 1097 hid = di->HardwareId.String; 1098 uid = di->UniqueId.String; 1099 1100 if (pnp != NULL) { 1101 1102 if (di->Type != ACPI_TYPE_DEVICE) { 1103 1104 aprint_normal("%s (ACPI Object Type '%s') at %s", 1105 ad->ad_name, AcpiUtGetTypeName(ad->ad_type), pnp); 1106 1107 return UNCONF; 1108 } 1109 1110 if ((di->Valid & ACPI_VALID_HID) == 0 || hid == NULL) 1111 return 0; 1112 1113 aprint_normal("%s (%s) ", ad->ad_name, hid); 1114 acpi_print_dev(hid); 1115 aprint_normal("at %s", pnp); 1116 1117 return UNCONF; 1118 } 1119 1120 aprint_normal(" (%s", ad->ad_name); 1121 1122 if ((di->Valid & ACPI_VALID_HID) != 0 && hid != NULL) { 1123 1124 aprint_normal(", %s", hid); 1125 1126 if ((di->Valid & ACPI_VALID_UID) != 0 && uid != NULL) { 1127 1128 if (uid[0] == '\0') 1129 uid = "<null>"; 1130 1131 aprint_normal("-%s", uid); 1132 } 1133 } 1134 1135 aprint_normal(")"); 1136 1137 return UNCONF; 1138 } 1139 1140 /* 1141 * Notify. 1142 */ 1143 static void 1144 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1145 { 1146 struct acpi_softc *sc = acpi_softc; 1147 struct acpi_devnode *ad; 1148 1149 KASSERT(sc != NULL); 1150 KASSERT(aux == NULL); 1151 KASSERT(acpi_active != 0); 1152 1153 if (acpi_suspended != 0) 1154 return; 1155 1156 /* 1157 * System: 0x00 - 0x7F. 1158 * Device: 0x80 - 0xFF. 1159 */ 1160 switch (event) { 1161 1162 case ACPI_NOTIFY_BUS_CHECK: 1163 case ACPI_NOTIFY_DEVICE_CHECK: 1164 case ACPI_NOTIFY_DEVICE_WAKE: 1165 case ACPI_NOTIFY_EJECT_REQUEST: 1166 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1167 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1168 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1169 case ACPI_NOTIFY_POWER_FAULT: 1170 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1171 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1172 case ACPI_NOTIFY_RESERVED: 1173 case ACPI_NOTIFY_LOCALITY_UPDATE: 1174 break; 1175 } 1176 1177 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1178 "%s (%p)\n", event, acpi_name(handle), handle)); 1179 1180 /* 1181 * We deliver notifications only to drivers 1182 * that have been successfully attached and 1183 * that have registered a handler with us. 1184 * The opaque pointer is always the device_t. 1185 */ 1186 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1187 1188 if (ad->ad_device == NULL) 1189 continue; 1190 1191 if (ad->ad_notify == NULL) 1192 continue; 1193 1194 if (ad->ad_handle != handle) 1195 continue; 1196 1197 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1198 1199 return; 1200 } 1201 1202 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1203 "for %s (%p)\n", event, acpi_name(handle), handle); 1204 } 1205 1206 bool 1207 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1208 { 1209 struct acpi_softc *sc = acpi_softc; 1210 1211 KASSERT(sc != NULL); 1212 KASSERT(acpi_active != 0); 1213 1214 if (acpi_suspended != 0) 1215 goto fail; 1216 1217 if (ad == NULL || notify == NULL) 1218 goto fail; 1219 1220 ad->ad_notify = notify; 1221 1222 return true; 1223 1224 fail: 1225 aprint_error_dev(sc->sc_dev, "failed to register notify " 1226 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1227 1228 return false; 1229 } 1230 1231 void 1232 acpi_deregister_notify(struct acpi_devnode *ad) 1233 { 1234 1235 ad->ad_notify = NULL; 1236 } 1237 1238 /* 1239 * Fixed buttons. 1240 */ 1241 static void 1242 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1243 { 1244 struct sysmon_pswitch *smpsw; 1245 ACPI_STATUS rv; 1246 int type; 1247 1248 switch (event) { 1249 1250 case ACPI_EVENT_POWER_BUTTON: 1251 1252 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1253 return; 1254 1255 type = PSWITCH_TYPE_POWER; 1256 smpsw = &sc->sc_smpsw_power; 1257 break; 1258 1259 case ACPI_EVENT_SLEEP_BUTTON: 1260 1261 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1262 return; 1263 1264 type = PSWITCH_TYPE_SLEEP; 1265 smpsw = &sc->sc_smpsw_sleep; 1266 break; 1267 1268 default: 1269 rv = AE_TYPE; 1270 goto fail; 1271 } 1272 1273 smpsw->smpsw_type = type; 1274 smpsw->smpsw_name = device_xname(sc->sc_dev); 1275 1276 if (sysmon_pswitch_register(smpsw) != 0) { 1277 rv = AE_ERROR; 1278 goto fail; 1279 } 1280 1281 AcpiClearEvent(event); 1282 1283 rv = AcpiInstallFixedEventHandler(event, 1284 acpi_fixed_button_handler, smpsw); 1285 1286 if (ACPI_FAILURE(rv)) { 1287 sysmon_pswitch_unregister(smpsw); 1288 goto fail; 1289 } 1290 1291 aprint_normal_dev(sc->sc_dev, "fixed %s button present\n", 1292 (type != PSWITCH_TYPE_SLEEP) ? "power" : "sleep"); 1293 1294 return; 1295 1296 fail: 1297 aprint_error_dev(sc->sc_dev, "failed to register " 1298 "fixed event %d: %s\n", event, AcpiFormatException(rv)); 1299 } 1300 1301 static void 1302 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1303 { 1304 struct sysmon_pswitch *smpsw; 1305 ACPI_STATUS rv; 1306 1307 switch (event) { 1308 1309 case ACPI_EVENT_POWER_BUTTON: 1310 smpsw = &sc->sc_smpsw_power; 1311 1312 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1313 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1314 return; 1315 } 1316 1317 break; 1318 1319 case ACPI_EVENT_SLEEP_BUTTON: 1320 smpsw = &sc->sc_smpsw_sleep; 1321 1322 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1323 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1324 return; 1325 } 1326 1327 break; 1328 1329 default: 1330 rv = AE_TYPE; 1331 goto fail; 1332 } 1333 1334 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1335 1336 if (ACPI_SUCCESS(rv)) { 1337 sysmon_pswitch_unregister(smpsw); 1338 return; 1339 } 1340 1341 fail: 1342 aprint_error_dev(sc->sc_dev, "failed to deregister " 1343 "fixed event: %s\n", AcpiFormatException(rv)); 1344 } 1345 1346 static uint32_t 1347 acpi_fixed_button_handler(void *context) 1348 { 1349 static const int handler = OSL_NOTIFY_HANDLER; 1350 struct sysmon_pswitch *smpsw = context; 1351 1352 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1353 1354 return ACPI_INTERRUPT_HANDLED; 1355 } 1356 1357 static void 1358 acpi_fixed_button_pressed(void *context) 1359 { 1360 struct sysmon_pswitch *smpsw = context; 1361 1362 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s fixed button pressed\n", 1363 (smpsw->smpsw_type != ACPI_EVENT_SLEEP_BUTTON) ? 1364 "power" : "sleep")); 1365 1366 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1367 } 1368 1369 /* 1370 * Sleep. 1371 */ 1372 static void 1373 acpi_sleep_init(struct acpi_softc *sc) 1374 { 1375 uint8_t a, b, i; 1376 ACPI_STATUS rv; 1377 1378 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1379 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1380 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1381 1382 /* 1383 * Evaluate supported sleep states. 1384 */ 1385 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1386 1387 rv = AcpiGetSleepTypeData(i, &a, &b); 1388 1389 if (ACPI_SUCCESS(rv)) 1390 sc->sc_sleepstates |= __BIT(i); 1391 } 1392 } 1393 1394 /* 1395 * Must be called with interrupts enabled. 1396 */ 1397 void 1398 acpi_enter_sleep_state(int state) 1399 { 1400 struct acpi_softc *sc = acpi_softc; 1401 ACPI_STATUS rv; 1402 1403 if (acpi_softc == NULL) 1404 return; 1405 1406 if (state == sc->sc_sleepstate) 1407 return; 1408 1409 if (state < ACPI_STATE_S0 || state > ACPI_STATE_S5) 1410 return; 1411 1412 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1413 1414 switch (state) { 1415 1416 case ACPI_STATE_S0: 1417 sc->sc_sleepstate = ACPI_STATE_S0; 1418 return; 1419 1420 case ACPI_STATE_S1: 1421 case ACPI_STATE_S2: 1422 case ACPI_STATE_S3: 1423 case ACPI_STATE_S4: 1424 1425 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1426 aprint_error_dev(sc->sc_dev, "sleep state " 1427 "S%d is not available\n", state); 1428 return; 1429 } 1430 1431 /* 1432 * Evaluate the _TTS method. This should be done before 1433 * pmf_system_suspend(9) and the evaluation of _PTS. 1434 * We should also re-evaluate this once we return to 1435 * S0 or if we abort the sleep state transition in the 1436 * middle (see ACPI 3.0, section 7.3.6). In reality, 1437 * however, the _TTS method is seldom seen in the field. 1438 */ 1439 rv = acpi_eval_set_integer(NULL, "\\_TTS", state); 1440 1441 if (ACPI_SUCCESS(rv)) 1442 aprint_debug_dev(sc->sc_dev, "evaluated _TTS\n"); 1443 1444 if (state != ACPI_STATE_S1 && 1445 pmf_system_suspend(PMF_Q_NONE) != true) { 1446 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1447 break; 1448 } 1449 1450 /* 1451 * This will evaluate the _PTS and _SST methods, 1452 * but unlike the documentation claims, not _GTS, 1453 * which is evaluated in AcpiEnterSleepState(). 1454 * This must be called with interrupts enabled. 1455 */ 1456 rv = AcpiEnterSleepStatePrep(state); 1457 1458 if (ACPI_FAILURE(rv)) { 1459 aprint_error_dev(sc->sc_dev, "failed to prepare " 1460 "S%d: %s\n", state, AcpiFormatException(rv)); 1461 break; 1462 } 1463 1464 /* 1465 * After the _PTS method has been evaluated, we can 1466 * enable wake and evaluate _PSW (ACPI 4.0, p. 284). 1467 */ 1468 acpi_wakedev_commit(sc, state); 1469 1470 sc->sc_sleepstate = state; 1471 1472 if (state == ACPI_STATE_S1) { 1473 1474 /* 1475 * Before the transition to S1, CPU caches 1476 * must be flushed (see ACPI 4.0, 7.3.4.2). 1477 * 1478 * Note that interrupts must be off before 1479 * calling AcpiEnterSleepState(). Conversely, 1480 * AcpiLeaveSleepState() should always be 1481 * called with interrupts enabled. 1482 */ 1483 acpi_md_OsDisableInterrupt(); 1484 1485 ACPI_FLUSH_CPU_CACHE(); 1486 rv = AcpiEnterSleepState(state); 1487 1488 if (ACPI_FAILURE(rv)) 1489 aprint_error_dev(sc->sc_dev, "failed to " 1490 "enter S1: %s\n", AcpiFormatException(rv)); 1491 1492 /* 1493 * Clear fixed events and disable all GPEs before 1494 * interrupts are enabled. 1495 */ 1496 AcpiClearEvent(ACPI_EVENT_PMTIMER); 1497 AcpiClearEvent(ACPI_EVENT_GLOBAL); 1498 AcpiClearEvent(ACPI_EVENT_POWER_BUTTON); 1499 AcpiClearEvent(ACPI_EVENT_SLEEP_BUTTON); 1500 AcpiClearEvent(ACPI_EVENT_RTC); 1501 #if (!ACPI_REDUCED_HARDWARE) 1502 AcpiHwDisableAllGpes(); 1503 #endif 1504 1505 acpi_md_OsEnableInterrupt(); 1506 rv = AcpiLeaveSleepState(state); 1507 1508 } else { 1509 1510 (void)acpi_md_sleep(state); 1511 1512 if (state == ACPI_STATE_S4) 1513 AcpiEnable(); 1514 1515 (void)pmf_system_bus_resume(PMF_Q_NONE); 1516 (void)AcpiLeaveSleepState(state); 1517 (void)AcpiSetFirmwareWakingVector(0, 0); 1518 (void)pmf_system_resume(PMF_Q_NONE); 1519 } 1520 1521 /* 1522 * No wake GPEs should be enabled at runtime. 1523 */ 1524 acpi_wakedev_commit(sc, ACPI_STATE_S0); 1525 break; 1526 1527 case ACPI_STATE_S5: 1528 1529 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S5); 1530 1531 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1532 1533 if (ACPI_FAILURE(rv)) { 1534 aprint_error_dev(sc->sc_dev, "failed to prepare " 1535 "S%d: %s\n", state, AcpiFormatException(rv)); 1536 break; 1537 } 1538 1539 (void)AcpiDisableAllGpes(); 1540 1541 DELAY(1000000); 1542 1543 sc->sc_sleepstate = state; 1544 acpi_md_OsDisableInterrupt(); 1545 1546 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1547 1548 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1549 1550 break; 1551 } 1552 1553 sc->sc_sleepstate = ACPI_STATE_S0; 1554 1555 (void)acpi_eval_set_integer(NULL, "\\_TTS", ACPI_STATE_S0); 1556 } 1557 1558 /* 1559 * Sysctl. 1560 */ 1561 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1562 { 1563 const struct sysctlnode *rnode, *snode; 1564 int err; 1565 1566 err = sysctl_createv(clog, 0, NULL, &rnode, 1567 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1568 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1569 NULL, 0, NULL, 0, 1570 CTL_HW, CTL_CREATE, CTL_EOL); 1571 1572 if (err != 0) 1573 return; 1574 1575 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1576 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1577 "root", SYSCTL_DESCR("ACPI root pointer"), 1578 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1579 CTL_CREATE, CTL_EOL); 1580 1581 err = sysctl_createv(clog, 0, &rnode, &snode, 1582 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1583 "sleep", SYSCTL_DESCR("ACPI sleep"), 1584 NULL, 0, NULL, 0, 1585 CTL_CREATE, CTL_EOL); 1586 1587 if (err != 0) 1588 return; 1589 1590 (void)sysctl_createv(NULL, 0, &snode, NULL, 1591 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1592 "state", SYSCTL_DESCR("System sleep state"), 1593 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1594 CTL_CREATE, CTL_EOL); 1595 1596 (void)sysctl_createv(NULL, 0, &snode, NULL, 1597 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1598 "states", SYSCTL_DESCR("Supported sleep states"), 1599 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1600 CTL_CREATE, CTL_EOL); 1601 1602 err = sysctl_createv(clog, 0, &rnode, &rnode, 1603 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1604 "stat", SYSCTL_DESCR("ACPI statistics"), 1605 NULL, 0, NULL, 0, 1606 CTL_CREATE, CTL_EOL); 1607 1608 if (err != 0) 1609 return; 1610 1611 (void)sysctl_createv(clog, 0, &rnode, NULL, 1612 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1613 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1614 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1615 CTL_CREATE, CTL_EOL); 1616 1617 (void)sysctl_createv(clog, 0, &rnode, NULL, 1618 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1619 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1620 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1621 CTL_CREATE, CTL_EOL); 1622 1623 (void)sysctl_createv(clog, 0, &rnode, NULL, 1624 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1625 "fixed", SYSCTL_DESCR("Number of fixed events"), 1626 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1627 CTL_CREATE, CTL_EOL); 1628 1629 (void)sysctl_createv(clog, 0, &rnode, NULL, 1630 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1631 "method", SYSCTL_DESCR("Number of methods executed"), 1632 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1633 CTL_CREATE, CTL_EOL); 1634 1635 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1636 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1637 } 1638 1639 static int 1640 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1641 { 1642 struct sysctlnode node; 1643 uint64_t t; 1644 int err, i; 1645 1646 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1647 t += AcpiFixedEventCount[i]; 1648 1649 node = *rnode; 1650 node.sysctl_data = &t; 1651 1652 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1653 1654 if (err || newp == NULL) 1655 return err; 1656 1657 return 0; 1658 } 1659 1660 static int 1661 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1662 { 1663 struct acpi_softc *sc = acpi_softc; 1664 struct sysctlnode node; 1665 int err, t; 1666 1667 if (acpi_softc == NULL) 1668 return ENOSYS; 1669 1670 node = *rnode; 1671 t = sc->sc_sleepstate; 1672 node.sysctl_data = &t; 1673 1674 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1675 1676 if (err || newp == NULL) 1677 return err; 1678 1679 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1680 return EINVAL; 1681 1682 acpi_enter_sleep_state(t); 1683 1684 return 0; 1685 } 1686 1687 static int 1688 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1689 { 1690 struct acpi_softc *sc = acpi_softc; 1691 struct sysctlnode node; 1692 char t[3 * 6 + 1]; 1693 int err; 1694 1695 if (acpi_softc == NULL) 1696 return ENOSYS; 1697 1698 (void)memset(t, '\0', sizeof(t)); 1699 1700 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1701 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1702 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1703 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1704 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1705 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1706 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1707 1708 node = *rnode; 1709 node.sysctl_data = &t; 1710 1711 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1712 1713 if (err || newp == NULL) 1714 return err; 1715 1716 return 0; 1717 } 1718 1719 /* 1720 * Tables. 1721 */ 1722 ACPI_PHYSICAL_ADDRESS 1723 acpi_OsGetRootPointer(void) 1724 { 1725 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1726 1727 /* 1728 * We let MD code handle this since there are multiple ways to do it: 1729 * 1730 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1731 * 1732 * IA-64: Use the EFI. 1733 */ 1734 PhysicalAddress = acpi_md_OsGetRootPointer(); 1735 1736 if (acpi_root_pointer == 0) 1737 acpi_root_pointer = PhysicalAddress; 1738 1739 return PhysicalAddress; 1740 } 1741 1742 static ACPI_TABLE_HEADER * 1743 acpi_map_rsdt(void) 1744 { 1745 ACPI_PHYSICAL_ADDRESS paddr; 1746 ACPI_TABLE_RSDP *rsdp; 1747 1748 paddr = AcpiOsGetRootPointer(); 1749 1750 if (paddr == 0) 1751 return NULL; 1752 1753 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1754 1755 if (rsdp == NULL) 1756 return NULL; 1757 1758 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1759 paddr = rsdp->XsdtPhysicalAddress; 1760 else 1761 paddr = rsdp->RsdtPhysicalAddress; 1762 1763 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1764 1765 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1766 } 1767 1768 /* 1769 * XXX: Refactor to be a generic function that unmaps tables. 1770 */ 1771 static void 1772 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1773 { 1774 1775 if (rsdt == NULL) 1776 return; 1777 1778 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1779 } 1780 1781 /* 1782 * XXX: Refactor to be a generic function that maps tables. 1783 */ 1784 ACPI_STATUS 1785 acpi_madt_map(void) 1786 { 1787 ACPI_STATUS rv; 1788 1789 if (madt_header != NULL) 1790 return AE_ALREADY_EXISTS; 1791 1792 rv = AcpiGetTable(ACPI_SIG_MADT, 1, &madt_header); 1793 1794 if (ACPI_FAILURE(rv)) 1795 return rv; 1796 1797 return AE_OK; 1798 } 1799 1800 void 1801 acpi_madt_unmap(void) 1802 { 1803 madt_header = NULL; 1804 } 1805 1806 ACPI_STATUS 1807 acpi_gtdt_map(void) 1808 { 1809 ACPI_STATUS rv; 1810 1811 if (gtdt_header != NULL) 1812 return AE_ALREADY_EXISTS; 1813 1814 rv = AcpiGetTable(ACPI_SIG_GTDT, 1, >dt_header); 1815 1816 if (ACPI_FAILURE(rv)) 1817 return rv; 1818 1819 return AE_OK; 1820 } 1821 1822 void 1823 acpi_gtdt_unmap(void) 1824 { 1825 gtdt_header = NULL; 1826 } 1827 1828 /* 1829 * XXX: Refactor to be a generic function that walks tables. 1830 */ 1831 void 1832 acpi_madt_walk(ACPI_STATUS (*func)(ACPI_SUBTABLE_HEADER *, void *), void *aux) 1833 { 1834 ACPI_SUBTABLE_HEADER *hdrp; 1835 char *madtend, *where; 1836 1837 madtend = (char *)madt_header + madt_header->Length; 1838 where = (char *)madt_header + sizeof (ACPI_TABLE_MADT); 1839 1840 while (where < madtend) { 1841 1842 hdrp = (ACPI_SUBTABLE_HEADER *)where; 1843 1844 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1845 break; 1846 1847 where += hdrp->Length; 1848 } 1849 } 1850 1851 void 1852 acpi_gtdt_walk(ACPI_STATUS (*func)(ACPI_GTDT_HEADER *, void *), void *aux) 1853 { 1854 ACPI_GTDT_HEADER *hdrp; 1855 char *gtdtend, *where; 1856 1857 gtdtend = (char *)gtdt_header + gtdt_header->Length; 1858 where = (char *)gtdt_header + sizeof (ACPI_TABLE_GTDT); 1859 1860 while (where < gtdtend) { 1861 1862 hdrp = (ACPI_GTDT_HEADER *)where; 1863 1864 if (hdrp->Length == 0 || ACPI_FAILURE(func(hdrp, aux))) 1865 break; 1866 1867 where += hdrp->Length; 1868 } 1869 } 1870 1871 /* 1872 * Miscellaneous. 1873 */ 1874 static bool 1875 acpi_is_scope(struct acpi_devnode *ad) 1876 { 1877 int i; 1878 1879 /* 1880 * Return true if the node is a root scope. 1881 */ 1882 if (ad->ad_parent == NULL) 1883 return false; 1884 1885 if (ad->ad_parent->ad_handle != ACPI_ROOT_OBJECT) 1886 return false; 1887 1888 for (i = 0; i < __arraycount(acpi_scopes); i++) { 1889 1890 if (acpi_scopes[i] == NULL) 1891 continue; 1892 1893 if (ad->ad_handle == acpi_scopes[i]) 1894 return true; 1895 } 1896 1897 return false; 1898 } 1899 1900 bool 1901 acpi_device_present(ACPI_HANDLE handle) 1902 { 1903 ACPI_STATUS rv; 1904 ACPI_INTEGER sta; 1905 1906 rv = acpi_eval_integer(handle, "_STA", &sta); 1907 1908 if (ACPI_FAILURE(rv)) { 1909 /* No _STA method -> must be there */ 1910 return rv == AE_NOT_FOUND; 1911 } 1912 1913 return (sta & ACPI_STA_OK) == ACPI_STA_OK; 1914 } 1915 1916 /* 1917 * ACPIVERBOSE. 1918 */ 1919 void 1920 acpi_load_verbose(void) 1921 { 1922 1923 if (acpi_verbose_loaded == 0) 1924 module_autoload("acpiverbose", MODULE_CLASS_MISC); 1925 } 1926 1927 void 1928 acpi_print_verbose_stub(struct acpi_softc *sc) 1929 { 1930 1931 acpi_load_verbose(); 1932 1933 if (acpi_verbose_loaded != 0) 1934 acpi_print_verbose(sc); 1935 } 1936 1937 void 1938 acpi_print_dev_stub(const char *pnpstr) 1939 { 1940 1941 acpi_load_verbose(); 1942 1943 if (acpi_verbose_loaded != 0) 1944 acpi_print_dev(pnpstr); 1945 } 1946 1947 MALLOC_DECLARE(M_ACPI); /* XXX: ACPI_ACTIVATE_DEV should use kmem(9). */ 1948 1949 /* 1950 * ACPI_ACTIVATE_DEV. 1951 */ 1952 static void 1953 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1954 { 1955 1956 #ifndef ACPI_ACTIVATE_DEV 1957 return; 1958 } 1959 #else 1960 static const int valid = ACPI_VALID_HID; 1961 ACPI_DEVICE_INFO *newdi; 1962 ACPI_STATUS rv; 1963 1964 1965 /* 1966 * If the device is valid and present, 1967 * but not enabled, try to activate it. 1968 */ 1969 if (((*di)->Valid & valid) != valid) 1970 return; 1971 1972 if (!acpi_device_present(handle)) 1973 return; 1974 1975 rv = acpi_allocate_resources(handle); 1976 1977 if (ACPI_FAILURE(rv)) 1978 goto fail; 1979 1980 rv = AcpiGetObjectInfo(handle, &newdi); 1981 1982 if (ACPI_FAILURE(rv)) 1983 goto fail; 1984 1985 ACPI_FREE(*di); 1986 *di = newdi; 1987 1988 aprint_verbose_dev(acpi_softc->sc_dev, 1989 "%s activated\n", (*di)->HardwareId.String); 1990 1991 return; 1992 1993 fail: 1994 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1995 "activate %s\n", (*di)->HardwareId.String); 1996 } 1997 1998 /* 1999 * XXX: This very incomplete. 2000 */ 2001 ACPI_STATUS 2002 acpi_allocate_resources(ACPI_HANDLE handle) 2003 { 2004 ACPI_BUFFER bufp, bufc, bufn; 2005 ACPI_RESOURCE *resp, *resc, *resn; 2006 ACPI_RESOURCE_IRQ *irq; 2007 #if 0 2008 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 2009 #endif 2010 ACPI_STATUS rv; 2011 uint delta; 2012 2013 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 2014 if (ACPI_FAILURE(rv)) 2015 goto out; 2016 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 2017 if (ACPI_FAILURE(rv)) { 2018 goto out1; 2019 } 2020 2021 bufn.Length = 1000; 2022 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 2023 resp = bufp.Pointer; 2024 resc = bufc.Pointer; 2025 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 2026 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2027 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 2028 resp = ACPI_NEXT_RESOURCE(resp); 2029 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 2030 break; 2031 /* Found identical Id */ 2032 resn->Type = resc->Type; 2033 switch (resc->Type) { 2034 case ACPI_RESOURCE_TYPE_IRQ: 2035 memcpy(&resn->Data, &resp->Data, 2036 sizeof(ACPI_RESOURCE_IRQ)); 2037 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 2038 irq->Interrupts[0] = 2039 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 2040 Interrupts[irq->InterruptCount-1]; 2041 irq->InterruptCount = 1; 2042 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 2043 break; 2044 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 2045 memcpy(&resn->Data, &resp->Data, 2046 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 2047 #if 0 2048 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 2049 /* 2050 * XXX: Not duplicating the interrupt logic above 2051 * because its not clear what it accomplishes. 2052 */ 2053 xirq->Interrupts[0] = 2054 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 2055 Interrupts[irq->NumberOfInterrupts-1]; 2056 xirq->NumberOfInterrupts = 1; 2057 #endif 2058 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 2059 break; 2060 case ACPI_RESOURCE_TYPE_IO: 2061 memcpy(&resn->Data, &resp->Data, 2062 sizeof(ACPI_RESOURCE_IO)); 2063 resn->Length = resp->Length; 2064 break; 2065 default: 2066 aprint_error_dev(acpi_softc->sc_dev, 2067 "%s: invalid type %u\n", __func__, resc->Type); 2068 rv = AE_BAD_DATA; 2069 goto out2; 2070 } 2071 resc = ACPI_NEXT_RESOURCE(resc); 2072 resn = ACPI_NEXT_RESOURCE(resn); 2073 resp = ACPI_NEXT_RESOURCE(resp); 2074 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 2075 if (delta >= 2076 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 2077 bufn.Length *= 2; 2078 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 2079 M_ACPI, M_WAITOK); 2080 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 2081 delta); 2082 } 2083 } 2084 2085 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 2086 aprint_error_dev(acpi_softc->sc_dev, 2087 "%s: resc not exhausted\n", __func__); 2088 rv = AE_BAD_DATA; 2089 goto out3; 2090 } 2091 2092 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 2093 rv = AcpiSetCurrentResources(handle, &bufn); 2094 2095 if (ACPI_FAILURE(rv)) 2096 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 2097 "resources: %s\n", __func__, AcpiFormatException(rv)); 2098 2099 out3: 2100 free(bufn.Pointer, M_ACPI); 2101 out2: 2102 ACPI_FREE(bufc.Pointer); 2103 out1: 2104 ACPI_FREE(bufp.Pointer); 2105 out: 2106 return rv; 2107 } 2108 2109 #endif /* ACPI_ACTIVATE_DEV */ 2110
Indexes created Tue Sep 23 07:09:52 GMT 2025