acpi.c revision 1.175
1 /* $NetBSD: acpi.c,v 1.175 2010/04/15 07:02:24 jruoho 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 2001, 2003 Wasabi Systems, Inc. 34 * All rights reserved. 35 * 36 * Written by Jason R. Thorpe 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 #include <sys/cdefs.h> 68 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.175 2010/04/15 07:02:24 jruoho Exp $"); 69 70 #include "opt_acpi.h" 71 #include "opt_pcifixup.h" 72 73 #include <sys/param.h> 74 #include <sys/device.h> 75 #include <sys/kernel.h> 76 #include <sys/malloc.h> 77 #include <sys/mutex.h> 78 #include <sys/sysctl.h> 79 #include <sys/systm.h> 80 81 #include <dev/acpi/acpireg.h> 82 #include <dev/acpi/acpivar.h> 83 #include <dev/acpi/acpi_osd.h> 84 #include <dev/acpi/acpi_pci.h> 85 #include <dev/acpi/acpi_timer.h> 86 #include <dev/acpi/acpi_wakedev.h> 87 88 #ifdef ACPIVERBOSE 89 #include <dev/acpi/acpidevs_data.h> 90 #endif 91 92 #define _COMPONENT ACPI_BUS_COMPONENT 93 ACPI_MODULE_NAME ("acpi") 94 95 #if defined(ACPI_PCI_FIXUP) 96 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 97 #endif 98 99 #ifdef PCI_INTR_FIXUP_DISABLED 100 #include <dev/pci/pcidevs.h> 101 #endif 102 103 MALLOC_DECLARE(M_ACPI); 104 105 #include <machine/acpi_machdep.h> 106 107 #ifdef ACPI_DEBUGGER 108 #define ACPI_DBGR_INIT 0x01 109 #define ACPI_DBGR_TABLES 0x02 110 #define ACPI_DBGR_ENABLE 0x04 111 #define ACPI_DBGR_PROBE 0x08 112 #define ACPI_DBGR_RUNNING 0x10 113 114 static int acpi_dbgr = 0x00; 115 #endif 116 117 static ACPI_TABLE_DESC acpi_initial_tables[128]; 118 119 /* 120 * This is a flag we set when the ACPI subsystem is active. Machine 121 * dependent code may wish to skip other steps (such as attaching 122 * subsystems that ACPI supercedes) when ACPI is active. 123 */ 124 int acpi_active; 125 int acpi_force_load; 126 int acpi_suspended = 0; 127 128 struct acpi_softc *acpi_softc; 129 static uint64_t acpi_root_pointer; 130 extern kmutex_t acpi_interrupt_list_mtx; 131 132 /* 133 * Ignored HIDs. 134 */ 135 static const char * const acpi_ignored_ids[] = { 136 #if defined(i386) || defined(x86_64) 137 "PNP0000", /* AT interrupt controller is handled internally */ 138 "PNP0200", /* AT DMA controller is handled internally */ 139 "PNP0A??", /* PCI Busses are handled internally */ 140 "PNP0B00", /* AT RTC is handled internally */ 141 "PNP0C01", /* No "System Board" driver */ 142 "PNP0C02", /* No "PnP motherboard register resources" driver */ 143 "PNP0C0B", /* No need for "ACPI fan" driver */ 144 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 145 "IFX0102", /* No driver for Infineon TPM */ 146 "INT0800", /* No driver for Intel Firmware Hub device */ 147 #endif 148 #if defined(x86_64) 149 "PNP0C04", /* FPU is handled internally */ 150 #endif 151 NULL 152 }; 153 154 static int acpi_match(device_t, cfdata_t, void *); 155 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 156 static void acpi_attach(device_t, device_t, void *); 157 static int acpi_detach(device_t, int); 158 static void acpi_childdet(device_t, device_t); 159 static bool acpi_suspend(device_t, const pmf_qual_t *); 160 static bool acpi_resume(device_t, const pmf_qual_t *); 161 162 static void acpi_build_tree(struct acpi_softc *); 163 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 164 void *, void **); 165 166 #ifdef ACPI_ACTIVATE_DEV 167 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 168 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 169 #endif 170 171 static int acpi_rescan(device_t, const char *, const int *); 172 static void acpi_rescan1(struct acpi_softc *, 173 const char *, const int *); 174 static void acpi_rescan_nodes(struct acpi_softc *); 175 static void acpi_rescan_capabilities(struct acpi_softc *); 176 static int acpi_print(void *aux, const char *); 177 178 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 179 180 static void acpi_register_fixed_button(struct acpi_softc *, int); 181 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 182 static uint32_t acpi_fixed_button_handler(void *); 183 static void acpi_fixed_button_pressed(void *); 184 185 static void acpi_sleep_init(struct acpi_softc *); 186 187 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS); 188 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 189 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS); 190 191 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 192 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 193 194 extern struct cfdriver acpi_cd; 195 196 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 197 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 198 199 /* 200 * Probe for ACPI support. 201 * 202 * This is called by the machine-dependent ACPI front-end. 203 * Note: this is not an autoconfiguration interface function. 204 */ 205 int 206 acpi_probe(void) 207 { 208 ACPI_TABLE_HEADER *rsdt; 209 const char *func; 210 static int once; 211 bool initialized; 212 ACPI_STATUS rv; 213 214 if (once != 0) 215 panic("%s: already probed", __func__); 216 217 once = 1; 218 func = NULL; 219 initialized = false; 220 221 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 222 223 /* 224 * Start up ACPICA. 225 */ 226 #ifdef ACPI_DEBUGGER 227 if (acpi_dbgr & ACPI_DBGR_INIT) 228 acpi_osd_debugger(); 229 #endif 230 231 AcpiGbl_AllMethodsSerialized = false; 232 AcpiGbl_EnableInterpreterSlack = true; 233 234 rv = AcpiInitializeSubsystem(); 235 236 if (ACPI_SUCCESS(rv)) 237 initialized = true; 238 else { 239 func = "AcpiInitializeSubsystem()"; 240 goto fail; 241 } 242 243 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 244 245 if (ACPI_FAILURE(rv)) { 246 func = "AcpiInitializeTables()"; 247 goto fail; 248 } 249 250 rv = AcpiReallocateRootTable(); 251 252 if (ACPI_FAILURE(rv)) { 253 func = "AcpiReallocateRootTable()"; 254 goto fail; 255 } 256 257 #ifdef ACPI_DEBUGGER 258 if (acpi_dbgr & ACPI_DBGR_TABLES) 259 acpi_osd_debugger(); 260 #endif 261 262 rv = AcpiLoadTables(); 263 264 if (ACPI_FAILURE(rv)) { 265 func = "AcpiLoadTables()"; 266 goto fail; 267 } 268 269 rsdt = acpi_map_rsdt(); 270 271 if (rsdt == NULL) { 272 func = "acpi_map_rsdt()"; 273 rv = AE_ERROR; 274 goto fail; 275 } 276 277 if (acpi_force_load == 0 && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 278 aprint_normal("ACPI: BIOS is listed as broken:\n"); 279 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 280 "AslId <%4.4s,%08x>\n", 281 rsdt->OemId, rsdt->OemTableId, 282 rsdt->OemRevision, 283 rsdt->AslCompilerId, 284 rsdt->AslCompilerRevision); 285 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 286 acpi_unmap_rsdt(rsdt); 287 AcpiTerminate(); 288 return 0; 289 } 290 291 acpi_unmap_rsdt(rsdt); 292 293 #if notyet 294 /* 295 * Install the default address space handlers. 296 */ 297 func = "AcpiInstallAddressSpaceHandler()"; 298 299 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 300 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 301 302 if (ACPI_FAILURE(rv)) 303 goto fail; 304 305 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 306 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 307 308 if (ACPI_FAILURE(rv)) 309 goto fail; 310 311 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 312 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 313 314 if (ACPI_FAILURE(rv)) 315 goto fail; 316 #endif 317 318 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 319 320 if (ACPI_FAILURE(rv)) { 321 func = "AcpiEnableSubsystem()"; 322 goto fail; 323 } 324 325 /* 326 * Looks like we have ACPI! 327 */ 328 return 1; 329 330 fail: 331 KASSERT(rv != AE_OK); 332 KASSERT(func != NULL); 333 334 aprint_error("%s: failed to probe ACPI: %s\n", 335 func, AcpiFormatException(rv)); 336 337 if (initialized != false) 338 (void)AcpiTerminate(); 339 340 return 0; 341 } 342 343 int 344 acpi_check(device_t parent, const char *ifattr) 345 { 346 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 347 } 348 349 /* 350 * Autoconfiguration. 351 */ 352 static int 353 acpi_match(device_t parent, cfdata_t match, void *aux) 354 { 355 /* 356 * XXX: Nada; MD code has called acpi_probe(). 357 */ 358 return 1; 359 } 360 361 static int 362 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 363 { 364 struct cfattach *ca; 365 366 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 367 368 return (ca == &acpi_ca); 369 } 370 371 static void 372 acpi_attach(device_t parent, device_t self, void *aux) 373 { 374 struct acpi_softc *sc = device_private(self); 375 struct acpibus_attach_args *aa = aux; 376 ACPI_TABLE_HEADER *rsdt; 377 ACPI_STATUS rv; 378 379 aprint_naive("\n"); 380 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 381 382 if (acpi_softc != NULL) 383 panic("%s: already attached", __func__); 384 385 rsdt = acpi_map_rsdt(); 386 387 if (rsdt == NULL) 388 aprint_error_dev(self, "X/RSDT: Not found\n"); 389 else { 390 aprint_verbose_dev(self, 391 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 392 rsdt->OemId, rsdt->OemTableId, 393 rsdt->OemRevision, 394 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 395 } 396 397 acpi_unmap_rsdt(rsdt); 398 399 sc->sc_dev = self; 400 sc->sc_quirks = acpi_find_quirks(); 401 sc->sc_sleepstate = ACPI_STATE_S0; 402 403 sysmon_power_settype("acpi"); 404 405 sc->sc_iot = aa->aa_iot; 406 sc->sc_memt = aa->aa_memt; 407 sc->sc_pc = aa->aa_pc; 408 sc->sc_pciflags = aa->aa_pciflags; 409 sc->sc_ic = aa->aa_ic; 410 411 SIMPLEQ_INIT(&sc->sc_devnodes); 412 413 acpi_softc = sc; 414 415 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 416 aprint_error_dev(self, "couldn't establish power handler\n"); 417 418 /* 419 * Bring ACPI on-line. 420 */ 421 #ifdef ACPI_DEBUGGER 422 if (acpi_dbgr & ACPI_DBGR_ENABLE) 423 acpi_osd_debugger(); 424 #endif 425 426 #define ACPI_ENABLE_PHASE1 \ 427 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 428 #define ACPI_ENABLE_PHASE2 \ 429 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 430 ACPI_NO_ADDRESS_SPACE_INIT) 431 432 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 433 434 if (ACPI_FAILURE(rv)) 435 goto fail; 436 437 acpi_md_callback(); 438 439 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 440 441 if (ACPI_FAILURE(rv)) 442 goto fail; 443 444 /* 445 * Early EC handler initialization if ECDT table is available. 446 */ 447 config_found_ia(self, "acpiecdtbus", aa, NULL); 448 449 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 450 451 if (ACPI_FAILURE(rv)) 452 goto fail; 453 454 /* 455 * Install global notify handlers. 456 */ 457 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 458 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 459 460 if (ACPI_FAILURE(rv)) 461 goto fail; 462 463 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 464 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 465 466 if (ACPI_FAILURE(rv)) 467 goto fail; 468 469 acpi_active = 1; 470 471 /* Our current state is "awake". */ 472 sc->sc_sleepstate = ACPI_STATE_S0; 473 474 /* Show SCI interrupt. */ 475 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 476 AcpiGbl_FADT.SciInterrupt); 477 478 /* 479 * Install fixed-event handlers. 480 */ 481 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 482 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 483 484 acpitimer_init(); 485 486 #ifdef ACPI_DEBUGGER 487 if (acpi_dbgr & ACPI_DBGR_PROBE) 488 acpi_osd_debugger(); 489 #endif 490 491 /* 492 * Scan the namespace and build our device tree. 493 */ 494 acpi_build_tree(sc); 495 acpi_sleep_init(sc); 496 497 #ifdef ACPI_DEBUGGER 498 if (acpi_dbgr & ACPI_DBGR_RUNNING) 499 acpi_osd_debugger(); 500 #endif 501 502 #ifdef ACPI_DEBUG 503 acpi_debug_init(); 504 #endif 505 506 return; 507 508 fail: 509 KASSERT(rv != AE_OK); 510 511 aprint_error("%s: failed to initialize ACPI: %s\n", 512 __func__, AcpiFormatException(rv)); 513 } 514 515 /* 516 * XXX: This is incomplete. 517 */ 518 static int 519 acpi_detach(device_t self, int flags) 520 { 521 struct acpi_softc *sc = device_private(self); 522 ACPI_STATUS rv; 523 int rc; 524 525 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 526 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 527 528 if (ACPI_FAILURE(rv)) 529 return EBUSY; 530 531 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 532 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 533 534 if (ACPI_FAILURE(rv)) 535 return EBUSY; 536 537 if ((rc = config_detach_children(self, flags)) != 0) 538 return rc; 539 540 if ((rc = acpitimer_detach()) != 0) 541 return rc; 542 543 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 544 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 545 546 pmf_device_deregister(self); 547 548 acpi_softc = NULL; 549 550 return 0; 551 } 552 553 /* 554 * XXX: Need to reclaim any resources? Yes. 555 */ 556 static void 557 acpi_childdet(device_t self, device_t child) 558 { 559 struct acpi_softc *sc = device_private(self); 560 struct acpi_devnode *ad; 561 562 if (sc->sc_apmbus == child) 563 sc->sc_apmbus = NULL; 564 565 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 566 567 if (ad->ad_device == child) 568 ad->ad_device = NULL; 569 } 570 } 571 572 static bool 573 acpi_suspend(device_t dv, const pmf_qual_t *qual) 574 { 575 576 acpi_suspended = 1; 577 578 return true; 579 } 580 581 static bool 582 acpi_resume(device_t dv, const pmf_qual_t *qual) 583 { 584 585 acpi_suspended = 0; 586 587 return true; 588 } 589 590 /* 591 * Namespace scan. 592 */ 593 static void 594 acpi_build_tree(struct acpi_softc *sc) 595 { 596 597 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 598 UINT32_MAX, acpi_make_devnode, NULL, sc, NULL); 599 600 acpi_rescan1(sc, NULL, NULL); 601 acpi_rescan_capabilities(sc); 602 603 acpi_pcidev_scan(sc); 604 } 605 606 static ACPI_STATUS 607 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 608 void *context, void **status) 609 { 610 struct acpi_softc *sc = context; 611 struct acpi_devnode *ad; 612 ACPI_DEVICE_INFO *devinfo; 613 ACPI_OBJECT_TYPE type; 614 ACPI_NAME_UNION *anu; 615 ACPI_STATUS rv; 616 int clear, i; 617 618 rv = AcpiGetObjectInfo(handle, &devinfo); 619 620 if (ACPI_FAILURE(rv)) 621 return AE_OK; /* Do not terminate the walk. */ 622 623 type = devinfo->Type; 624 625 switch (type) { 626 627 case ACPI_TYPE_DEVICE: 628 629 #ifdef ACPI_ACTIVATE_DEV 630 acpi_activate_device(handle, &devinfo); 631 #endif 632 633 case ACPI_TYPE_PROCESSOR: 634 case ACPI_TYPE_THERMAL: 635 case ACPI_TYPE_POWER: 636 637 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 638 639 if (ad == NULL) 640 return AE_NO_MEMORY; 641 642 ad->ad_device = NULL; 643 ad->ad_parent = sc->sc_dev; 644 645 ad->ad_type = type; 646 ad->ad_handle = handle; 647 ad->ad_devinfo = devinfo; 648 649 anu = (ACPI_NAME_UNION *)&devinfo->Name; 650 ad->ad_name[4] = '\0'; 651 652 for (i = 3, clear = 0; i >= 0; i--) { 653 654 if (clear == 0 && anu->Ascii[i] == '_') 655 ad->ad_name[i] = '\0'; 656 else { 657 ad->ad_name[i] = anu->Ascii[i]; 658 clear = 1; 659 } 660 } 661 662 if (ad->ad_name[0] == '\0') 663 ad->ad_name[0] = '_'; 664 665 SIMPLEQ_INSERT_TAIL(&sc->sc_devnodes, ad, ad_list); 666 667 #ifdef ACPIVERBOSE 668 669 if (type != ACPI_TYPE_DEVICE) 670 return AE_OK; 671 672 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 673 674 aprint_normal("HID %-10s ", 675 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 676 devinfo->HardwareId.String: "-"); 677 678 aprint_normal("UID %-4s ", 679 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 680 devinfo->UniqueId.String : "-"); 681 682 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 683 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 684 else 685 aprint_normal("STA %10s ", "-"); 686 687 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 688 aprint_normal("ADR 0x%016" PRIX64"", 689 devinfo->Address); 690 691 aprint_normal("\n"); 692 #endif 693 } 694 695 return AE_OK; 696 } 697 698 #ifdef ACPI_ACTIVATE_DEV 699 700 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 701 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 702 703 static void 704 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 705 { 706 ACPI_DEVICE_INFO *newdi; 707 ACPI_STATUS rv; 708 uint32_t old; 709 710 /* 711 * If the device is valid and present, 712 * but not enabled, try to activate it. 713 */ 714 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 715 return; 716 717 old = (*di)->CurrentStatus; 718 719 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 720 return; 721 722 rv = acpi_allocate_resources(handle); 723 724 if (ACPI_FAILURE(rv)) 725 goto fail; 726 727 rv = AcpiGetObjectInfo(handle, &newdi); 728 729 if (ACPI_FAILURE(rv)) 730 goto fail; 731 732 ACPI_FREE(*di); 733 *di = newdi; 734 735 aprint_verbose_dev(acpi_softc->sc_dev, 736 "%s activated, STA 0x%08X -> STA 0x%08X\n", 737 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 738 739 return; 740 741 fail: 742 aprint_error_dev(acpi_softc->sc_dev, "failed to " 743 "activate %s\n", (*di)->HardwareId.String); 744 } 745 746 /* 747 * XXX: This very incomplete. 748 */ 749 ACPI_STATUS 750 acpi_allocate_resources(ACPI_HANDLE handle) 751 { 752 ACPI_BUFFER bufp, bufc, bufn; 753 ACPI_RESOURCE *resp, *resc, *resn; 754 ACPI_RESOURCE_IRQ *irq; 755 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 756 ACPI_STATUS rv; 757 uint delta; 758 759 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 760 if (ACPI_FAILURE(rv)) 761 goto out; 762 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 763 if (ACPI_FAILURE(rv)) { 764 goto out1; 765 } 766 767 bufn.Length = 1000; 768 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 769 resp = bufp.Pointer; 770 resc = bufc.Pointer; 771 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 772 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 773 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 774 resp = ACPI_NEXT_RESOURCE(resp); 775 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 776 break; 777 /* Found identical Id */ 778 resn->Type = resc->Type; 779 switch (resc->Type) { 780 case ACPI_RESOURCE_TYPE_IRQ: 781 memcpy(&resn->Data, &resp->Data, 782 sizeof(ACPI_RESOURCE_IRQ)); 783 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 784 irq->Interrupts[0] = 785 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 786 Interrupts[irq->InterruptCount-1]; 787 irq->InterruptCount = 1; 788 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 789 break; 790 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 791 memcpy(&resn->Data, &resp->Data, 792 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 793 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 794 #if 0 795 /* 796 * XXX: Not duplicating the interrupt logic above 797 * because its not clear what it accomplishes. 798 */ 799 xirq->Interrupts[0] = 800 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 801 Interrupts[irq->NumberOfInterrupts-1]; 802 xirq->NumberOfInterrupts = 1; 803 #endif 804 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 805 break; 806 case ACPI_RESOURCE_TYPE_IO: 807 memcpy(&resn->Data, &resp->Data, 808 sizeof(ACPI_RESOURCE_IO)); 809 resn->Length = resp->Length; 810 break; 811 default: 812 aprint_error_dev(acpi_softc->sc_dev, 813 "%s: invalid type %u\n", __func__, resc->Type); 814 rv = AE_BAD_DATA; 815 goto out2; 816 } 817 resc = ACPI_NEXT_RESOURCE(resc); 818 resn = ACPI_NEXT_RESOURCE(resn); 819 resp = ACPI_NEXT_RESOURCE(resp); 820 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 821 if (delta >= 822 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 823 bufn.Length *= 2; 824 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 825 M_ACPI, M_WAITOK); 826 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 827 delta); 828 } 829 } 830 831 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 832 aprint_error_dev(acpi_softc->sc_dev, 833 "%s: resc not exhausted\n", __func__); 834 rv = AE_BAD_DATA; 835 goto out3; 836 } 837 838 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 839 rv = AcpiSetCurrentResources(handle, &bufn); 840 841 if (ACPI_FAILURE(rv)) 842 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 843 "resources: %s\n", __func__, AcpiFormatException(rv)); 844 845 out3: 846 free(bufn.Pointer, M_ACPI); 847 out2: 848 ACPI_FREE(bufc.Pointer); 849 out1: 850 ACPI_FREE(bufp.Pointer); 851 out: 852 return rv; 853 } 854 855 #undef ACPI_DEV_VALID 856 #undef ACPI_DEV_STATUS 857 858 #endif /* ACPI_ACTIVATE_DEV */ 859 860 /* 861 * Device attachment. 862 */ 863 static int 864 acpi_rescan(device_t self, const char *ifattr, const int *locators) 865 { 866 struct acpi_softc *sc = device_private(self); 867 868 acpi_rescan1(sc, ifattr, locators); 869 870 return 0; 871 } 872 873 static void 874 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 875 { 876 877 if (ifattr_match(ifattr, "acpinodebus")) 878 acpi_rescan_nodes(sc); 879 880 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 881 sc->sc_apmbus = config_found_ia(sc->sc_dev, 882 "acpiapmbus", NULL, NULL); 883 } 884 885 static void 886 acpi_rescan_nodes(struct acpi_softc *sc) 887 { 888 struct acpi_attach_args aa; 889 struct acpi_devnode *ad; 890 891 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 892 893 if (ad->ad_device != NULL) 894 continue; 895 896 aa.aa_node = ad; 897 aa.aa_iot = sc->sc_iot; 898 aa.aa_memt = sc->sc_memt; 899 aa.aa_pc = sc->sc_pc; 900 aa.aa_pciflags = sc->sc_pciflags; 901 aa.aa_ic = sc->sc_ic; 902 903 /* 904 * XXX: We only attach devices which are present, enabled, and 905 * functioning properly. However, if a device is enabled, 906 * it is decoding resources and we should claim these, 907 * if possible. This requires changes to bus_space(9). 908 */ 909 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 910 911 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 912 ACPI_VALID_STA && 913 (ad->ad_devinfo->CurrentStatus & 914 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 915 ACPI_STA_DEV_OK)) != 916 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 917 ACPI_STA_DEV_OK)) 918 continue; 919 } 920 921 /* 922 * XXX: The same problem as above. As for example 923 * thermal zones and power resources do not 924 * have a valid HID, only evaluate devices. 925 */ 926 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 927 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 928 continue; 929 930 /* 931 * Handled internally. 932 */ 933 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 934 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 935 continue; 936 937 /* 938 * Skip ignored HIDs. 939 */ 940 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 941 continue; 942 943 ad->ad_device = config_found_ia(sc->sc_dev, 944 "acpinodebus", &aa, acpi_print); 945 } 946 } 947 948 #define ACPI_STA_DEV_VALID \ 949 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 950 951 static void 952 acpi_rescan_capabilities(struct acpi_softc *sc) 953 { 954 struct acpi_devnode *ad; 955 ACPI_DEVICE_INFO *di; 956 ACPI_HANDLE tmp; 957 ACPI_STATUS rv; 958 959 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 960 961 di = ad->ad_devinfo; 962 963 if (di->Type != ACPI_TYPE_DEVICE) 964 continue; 965 966 if ((di->Valid & ACPI_VALID_STA) != 0 && 967 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 968 ACPI_STA_DEV_VALID) 969 continue; 970 971 /* 972 * Scan power resource capabilities. 973 */ 974 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 975 976 if (ACPI_FAILURE(rv)) 977 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 978 979 if (ACPI_SUCCESS(rv)) 980 ad->ad_flags |= ACPI_DEVICE_POWER; 981 982 /* 983 * Scan wake-up capabilities. 984 */ 985 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 986 987 if (ACPI_SUCCESS(rv)) { 988 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 989 acpi_wakedev_add(ad); 990 } 991 992 if (ad->ad_flags != 0) { 993 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 994 995 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 996 aprint_debug("power "); 997 998 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 999 aprint_debug("wake-up "); 1000 1001 aprint_debug("\n"); 1002 } 1003 } 1004 } 1005 1006 #undef ACPI_STA_DEV_VALID 1007 1008 static int 1009 acpi_print(void *aux, const char *pnp) 1010 { 1011 struct acpi_attach_args *aa = aux; 1012 ACPI_STATUS rv; 1013 1014 if (pnp) { 1015 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1016 char *pnpstr = 1017 aa->aa_node->ad_devinfo->HardwareId.String; 1018 ACPI_BUFFER buf; 1019 1020 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1021 pnpstr); 1022 1023 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1024 "_STR", &buf); 1025 if (ACPI_SUCCESS(rv)) { 1026 ACPI_OBJECT *obj = buf.Pointer; 1027 switch (obj->Type) { 1028 case ACPI_TYPE_STRING: 1029 aprint_normal("[%s] ", obj->String.Pointer); 1030 break; 1031 case ACPI_TYPE_BUFFER: 1032 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1033 break; 1034 default: 1035 aprint_normal("type %u ",obj->Type); 1036 break; 1037 } 1038 ACPI_FREE(buf.Pointer); 1039 } 1040 #ifdef ACPIVERBOSE 1041 else { 1042 int i; 1043 1044 for (i = 0; i < __arraycount(acpi_knowndevs); 1045 i++) { 1046 if (strcmp(acpi_knowndevs[i].pnp, 1047 pnpstr) == 0) { 1048 aprint_normal("[%s] ", 1049 acpi_knowndevs[i].str); 1050 } 1051 } 1052 } 1053 1054 #endif 1055 aprint_normal("at %s", pnp); 1056 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1057 aprint_normal("%s (ACPI Object Type '%s' " 1058 "[0x%02x]) ", aa->aa_node->ad_name, 1059 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1060 aa->aa_node->ad_devinfo->Type); 1061 aprint_normal("at %s", pnp); 1062 } else 1063 return 0; 1064 } else { 1065 aprint_normal(" (%s", aa->aa_node->ad_name); 1066 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1067 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1068 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1069 const char *uid; 1070 1071 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1072 if (uid[0] == '\0') 1073 uid = "<null>"; 1074 aprint_normal("-%s", uid); 1075 } 1076 } 1077 aprint_normal(")"); 1078 } 1079 1080 return UNCONF; 1081 } 1082 1083 /* 1084 * Notify. 1085 */ 1086 static void 1087 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1088 { 1089 struct acpi_softc *sc = acpi_softc; 1090 struct acpi_devnode *ad; 1091 1092 KASSERT(sc != NULL); 1093 KASSERT(aux == NULL); 1094 KASSERT(acpi_active != 0); 1095 1096 if (acpi_suspended != 0) 1097 return; 1098 1099 /* 1100 * System: 0x00 - 0x7F. 1101 * Device: 0x80 - 0xFF. 1102 */ 1103 switch (event) { 1104 1105 case ACPI_NOTIFY_BUS_CHECK: 1106 case ACPI_NOTIFY_DEVICE_CHECK: 1107 case ACPI_NOTIFY_DEVICE_WAKE: 1108 case ACPI_NOTIFY_EJECT_REQUEST: 1109 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1110 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1111 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1112 case ACPI_NOTIFY_POWER_FAULT: 1113 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1114 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1115 case ACPI_NOTIFY_RESERVED: 1116 case ACPI_NOTIFY_LOCALITY_UPDATE: 1117 break; 1118 } 1119 1120 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1121 "%s (%p)\n", event, acpi_name(handle), handle)); 1122 1123 /* 1124 * We deliver notifications only to drivers 1125 * that have been succesfully attached and 1126 * that have registered a handler with us. 1127 * The opaque pointer is always the device_t. 1128 */ 1129 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 1130 1131 if (ad->ad_device == NULL) 1132 continue; 1133 1134 if (ad->ad_notify == NULL) 1135 continue; 1136 1137 if (ad->ad_handle != handle) 1138 continue; 1139 1140 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1141 1142 return; 1143 } 1144 1145 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1146 "for %s (%p)\n", event, acpi_name(handle), handle); 1147 } 1148 1149 bool 1150 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1151 { 1152 struct acpi_softc *sc = acpi_softc; 1153 1154 KASSERT(sc != NULL); 1155 KASSERT(acpi_active != 0); 1156 1157 if (acpi_suspended != 0) 1158 goto fail; 1159 1160 if (ad == NULL || notify == NULL) 1161 goto fail; 1162 1163 ad->ad_notify = notify; 1164 1165 return true; 1166 1167 fail: 1168 aprint_error_dev(sc->sc_dev, "failed to register notify " 1169 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1170 1171 return false; 1172 } 1173 1174 void 1175 acpi_deregister_notify(struct acpi_devnode *ad) 1176 { 1177 1178 ad->ad_notify = NULL; 1179 } 1180 1181 /* 1182 * Fixed buttons. 1183 */ 1184 static void 1185 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1186 { 1187 struct sysmon_pswitch *smpsw; 1188 ACPI_STATUS rv; 1189 int type; 1190 1191 switch (event) { 1192 1193 case ACPI_EVENT_POWER_BUTTON: 1194 1195 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1196 return; 1197 1198 type = PSWITCH_TYPE_POWER; 1199 smpsw = &sc->sc_smpsw_power; 1200 break; 1201 1202 case ACPI_EVENT_SLEEP_BUTTON: 1203 1204 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1205 return; 1206 1207 type = PSWITCH_TYPE_SLEEP; 1208 smpsw = &sc->sc_smpsw_sleep; 1209 break; 1210 1211 default: 1212 rv = AE_TYPE; 1213 goto fail; 1214 } 1215 1216 smpsw->smpsw_type = type; 1217 smpsw->smpsw_name = device_xname(sc->sc_dev); 1218 1219 if (sysmon_pswitch_register(smpsw) != 0) { 1220 rv = AE_ERROR; 1221 goto fail; 1222 } 1223 1224 rv = AcpiInstallFixedEventHandler(event, 1225 acpi_fixed_button_handler, smpsw); 1226 1227 if (ACPI_FAILURE(rv)) 1228 goto fail; 1229 1230 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1231 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1232 1233 return; 1234 1235 fail: 1236 aprint_error_dev(sc->sc_dev, "failed to register " 1237 "fixed event: %s\n", AcpiFormatException(rv)); 1238 } 1239 1240 static void 1241 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1242 { 1243 struct sysmon_pswitch *smpsw; 1244 ACPI_STATUS rv; 1245 1246 switch (event) { 1247 1248 case ACPI_EVENT_POWER_BUTTON: 1249 smpsw = &sc->sc_smpsw_power; 1250 1251 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1252 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1253 return; 1254 } 1255 1256 break; 1257 1258 case ACPI_EVENT_SLEEP_BUTTON: 1259 smpsw = &sc->sc_smpsw_sleep; 1260 1261 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1262 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1263 return; 1264 } 1265 1266 break; 1267 1268 default: 1269 rv = AE_TYPE; 1270 goto fail; 1271 } 1272 1273 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1274 1275 if (ACPI_SUCCESS(rv)) { 1276 sysmon_pswitch_unregister(smpsw); 1277 return; 1278 } 1279 1280 fail: 1281 aprint_error_dev(sc->sc_dev, "failed to deregister " 1282 "fixed event: %s\n", AcpiFormatException(rv)); 1283 } 1284 1285 static uint32_t 1286 acpi_fixed_button_handler(void *context) 1287 { 1288 static const int handler = OSL_NOTIFY_HANDLER; 1289 struct sysmon_pswitch *smpsw = context; 1290 1291 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1292 1293 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1294 1295 return ACPI_INTERRUPT_HANDLED; 1296 } 1297 1298 static void 1299 acpi_fixed_button_pressed(void *context) 1300 { 1301 struct sysmon_pswitch *smpsw = context; 1302 1303 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1304 __func__, smpsw->smpsw_name)); 1305 1306 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1307 } 1308 1309 /* 1310 * Sleep. 1311 */ 1312 static void 1313 acpi_sleep_init(struct acpi_softc *sc) 1314 { 1315 uint8_t a, b, i; 1316 ACPI_STATUS rv; 1317 1318 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1319 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1320 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1321 1322 /* 1323 * Evaluate supported sleep states. 1324 */ 1325 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1326 1327 rv = AcpiGetSleepTypeData(i, &a, &b); 1328 1329 if (ACPI_SUCCESS(rv)) 1330 sc->sc_sleepstates |= __BIT(i); 1331 } 1332 } 1333 1334 ACPI_STATUS 1335 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1336 { 1337 ACPI_STATUS rv = AE_OK; 1338 int err; 1339 1340 if (state == sc->sc_sleepstate) 1341 return AE_OK; 1342 1343 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1344 1345 switch (state) { 1346 1347 case ACPI_STATE_S0: 1348 break; 1349 1350 case ACPI_STATE_S1: 1351 case ACPI_STATE_S2: 1352 case ACPI_STATE_S3: 1353 case ACPI_STATE_S4: 1354 1355 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1356 aprint_error_dev(sc->sc_dev, "sleep state " 1357 "S%d is not available\n", state); 1358 break; 1359 } 1360 1361 acpi_wakedev_commit(sc, state); 1362 1363 if (state != ACPI_STATE_S1 && 1364 pmf_system_suspend(PMF_Q_NONE) != true) { 1365 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1366 break; 1367 } 1368 1369 rv = AcpiEnterSleepStatePrep(state); 1370 1371 if (ACPI_FAILURE(rv)) { 1372 aprint_error_dev(sc->sc_dev, "failed to prepare " 1373 "S%d: %s\n", state, AcpiFormatException(rv)); 1374 break; 1375 } 1376 1377 sc->sc_sleepstate = state; 1378 1379 if (state == ACPI_STATE_S1) { 1380 1381 /* Just enter the state. */ 1382 acpi_md_OsDisableInterrupt(); 1383 rv = AcpiEnterSleepState(state); 1384 1385 if (ACPI_FAILURE(rv)) 1386 aprint_error_dev(sc->sc_dev, "failed to " 1387 "enter S1: %s\n", AcpiFormatException(rv)); 1388 1389 (void)AcpiLeaveSleepState(state); 1390 1391 } else { 1392 1393 err = acpi_md_sleep(state); 1394 1395 if (state == ACPI_STATE_S4) 1396 AcpiEnable(); 1397 1398 pmf_system_bus_resume(PMF_Q_NONE); 1399 (void)AcpiLeaveSleepState(state); 1400 pmf_system_resume(PMF_Q_NONE); 1401 } 1402 1403 break; 1404 case ACPI_STATE_S5: 1405 1406 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1407 1408 if (ACPI_FAILURE(rv)) { 1409 aprint_error_dev(sc->sc_dev, "failed to prepare " 1410 "S%d: %s\n", state, AcpiFormatException(rv)); 1411 break; 1412 } 1413 1414 DELAY(1000000); 1415 1416 sc->sc_sleepstate = state; 1417 acpi_md_OsDisableInterrupt(); 1418 1419 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1420 1421 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1422 break; 1423 } 1424 1425 sc->sc_sleepstate = ACPI_STATE_S0; 1426 1427 return rv; 1428 } 1429 1430 /* 1431 * Sysctl. 1432 */ 1433 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1434 { 1435 const struct sysctlnode *mnode, *rnode; 1436 int err; 1437 1438 err = sysctl_createv(clog, 0, NULL, &rnode, 1439 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1440 NULL, NULL, 0, NULL, 0, 1441 CTL_HW, CTL_EOL); 1442 1443 if (err != 0) 1444 return; 1445 1446 err = sysctl_createv(clog, 0, &rnode, &rnode, 1447 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1448 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1449 NULL, 0, NULL, 0, 1450 CTL_CREATE, CTL_EOL); 1451 1452 if (err != 0) 1453 return; 1454 1455 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1456 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1457 "root", SYSCTL_DESCR("ACPI root pointer"), 1458 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1459 CTL_CREATE, CTL_EOL); 1460 1461 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1462 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1463 "supported_states", SYSCTL_DESCR("Supported system states"), 1464 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1465 CTL_CREATE, CTL_EOL); 1466 1467 err = sysctl_createv(NULL, 0, NULL, &mnode, 1468 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1469 NULL, NULL, 0, NULL, 0, 1470 CTL_MACHDEP, CTL_EOL); 1471 1472 if (err == 0) { 1473 1474 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1475 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1476 "sleep_state", SYSCTL_DESCR("System sleep state"), 1477 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1478 CTL_CREATE, CTL_EOL); 1479 } 1480 1481 err = sysctl_createv(clog, 0, &rnode, &rnode, 1482 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1483 "stat", SYSCTL_DESCR("ACPI statistics"), 1484 NULL, 0, NULL, 0, 1485 CTL_CREATE, CTL_EOL); 1486 1487 if (err != 0) 1488 return; 1489 1490 (void)sysctl_createv(clog, 0, &rnode, NULL, 1491 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1492 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1493 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1494 CTL_CREATE, CTL_EOL); 1495 1496 (void)sysctl_createv(clog, 0, &rnode, NULL, 1497 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1498 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1499 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1500 CTL_CREATE, CTL_EOL); 1501 1502 (void)sysctl_createv(clog, 0, &rnode, NULL, 1503 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1504 "fixed", SYSCTL_DESCR("Number of fixed events"), 1505 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1506 CTL_CREATE, CTL_EOL); 1507 1508 (void)sysctl_createv(clog, 0, &rnode, NULL, 1509 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1510 "method", SYSCTL_DESCR("Number of methods executed"), 1511 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1512 CTL_CREATE, CTL_EOL); 1513 1514 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1515 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1516 } 1517 1518 static int 1519 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1520 { 1521 struct sysctlnode node; 1522 uint64_t t; 1523 int err, i; 1524 1525 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1526 t += AcpiFixedEventCount[i]; 1527 1528 node = *rnode; 1529 node.sysctl_data = &t; 1530 1531 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1532 1533 if (err || newp == NULL) 1534 return err; 1535 1536 return 0; 1537 } 1538 1539 static int 1540 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1541 { 1542 struct acpi_softc *sc = acpi_softc; 1543 struct sysctlnode node; 1544 int err, t; 1545 1546 if (acpi_softc == NULL) 1547 return ENOSYS; 1548 1549 node = *rnode; 1550 t = sc->sc_sleepstate; 1551 node.sysctl_data = &t; 1552 1553 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1554 1555 if (err || newp == NULL) 1556 return err; 1557 1558 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1559 return EINVAL; 1560 1561 acpi_enter_sleep_state(sc, t); 1562 1563 return 0; 1564 } 1565 1566 static int 1567 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1568 { 1569 struct acpi_softc *sc = acpi_softc; 1570 struct sysctlnode node; 1571 char t[3 * 6 + 1]; 1572 int err; 1573 1574 if (acpi_softc == NULL) 1575 return ENOSYS; 1576 1577 (void)memset(t, '\0', sizeof(t)); 1578 1579 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1580 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1581 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1582 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1583 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1584 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1585 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1586 1587 node = *rnode; 1588 node.sysctl_data = &t; 1589 1590 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1591 1592 if (err || newp == NULL) 1593 return err; 1594 1595 return 0; 1596 } 1597 1598 /* 1599 * Miscellaneous. 1600 */ 1601 ACPI_PHYSICAL_ADDRESS 1602 acpi_OsGetRootPointer(void) 1603 { 1604 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1605 1606 /* 1607 * We let MD code handle this since there are multiple ways to do it: 1608 * 1609 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1610 * 1611 * IA-64: Use the EFI. 1612 */ 1613 PhysicalAddress = acpi_md_OsGetRootPointer(); 1614 1615 if (acpi_root_pointer == 0) 1616 acpi_root_pointer = PhysicalAddress; 1617 1618 return PhysicalAddress; 1619 } 1620 1621 static ACPI_TABLE_HEADER * 1622 acpi_map_rsdt(void) 1623 { 1624 ACPI_PHYSICAL_ADDRESS paddr; 1625 ACPI_TABLE_RSDP *rsdp; 1626 1627 paddr = AcpiOsGetRootPointer(); 1628 1629 if (paddr == 0) 1630 return NULL; 1631 1632 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1633 1634 if (rsdp == NULL) 1635 return NULL; 1636 1637 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1638 paddr = rsdp->XsdtPhysicalAddress; 1639 else 1640 paddr = rsdp->RsdtPhysicalAddress; 1641 1642 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1643 1644 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1645 } 1646 1647 static void 1648 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1649 { 1650 1651 if (rsdt == NULL) 1652 return; 1653 1654 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1655 } 1656
Indexes created Wed Oct 01 19:09:53 GMT 2025