acpi.c revision 1.177
1 /* $NetBSD: acpi.c,v 1.177 2010/04/18 14:07:16 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 1.177 2010/04/18 14:07:16 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 * This structure provides a context for the ACPI 134 * namespace walk performed in acpi_build_tree(). 135 */ 136 struct acpi_walkcontext { 137 struct acpi_softc *aw_sc; 138 struct acpi_devnode *aw_parent; 139 }; 140 141 /* 142 * Ignored HIDs. 143 */ 144 static const char * const acpi_ignored_ids[] = { 145 #if defined(i386) || defined(x86_64) 146 "PNP0000", /* AT interrupt controller is handled internally */ 147 "PNP0200", /* AT DMA controller is handled internally */ 148 "PNP0A??", /* PCI Busses are handled internally */ 149 "PNP0B00", /* AT RTC is handled internally */ 150 "PNP0C01", /* No "System Board" driver */ 151 "PNP0C02", /* No "PnP motherboard register resources" driver */ 152 "PNP0C0B", /* No need for "ACPI fan" driver */ 153 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 154 "IFX0102", /* No driver for Infineon TPM */ 155 "INT0800", /* No driver for Intel Firmware Hub device */ 156 #endif 157 #if defined(x86_64) 158 "PNP0C04", /* FPU is handled internally */ 159 #endif 160 NULL 161 }; 162 163 static int acpi_match(device_t, cfdata_t, void *); 164 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 165 static void acpi_attach(device_t, device_t, void *); 166 static int acpi_detach(device_t, int); 167 static void acpi_childdet(device_t, device_t); 168 static bool acpi_suspend(device_t, const pmf_qual_t *); 169 static bool acpi_resume(device_t, const pmf_qual_t *); 170 171 static void acpi_build_tree(struct acpi_softc *); 172 173 #ifdef ACPI_DEBUG 174 static void acpi_print_tree(struct acpi_devnode *, uint32_t); 175 #endif 176 177 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 178 void *, void **); 179 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 180 void *, void **); 181 182 #ifdef ACPI_ACTIVATE_DEV 183 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 184 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 185 #endif 186 187 static int acpi_rescan(device_t, const char *, const int *); 188 static void acpi_rescan1(struct acpi_softc *, 189 const char *, const int *); 190 static void acpi_rescan_nodes(struct acpi_softc *); 191 static void acpi_rescan_capabilities(struct acpi_softc *); 192 static int acpi_print(void *aux, const char *); 193 194 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 195 196 static void acpi_register_fixed_button(struct acpi_softc *, int); 197 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 198 static uint32_t acpi_fixed_button_handler(void *); 199 static void acpi_fixed_button_pressed(void *); 200 201 static void acpi_sleep_init(struct acpi_softc *); 202 203 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS); 204 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 205 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS); 206 207 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 208 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 209 210 extern struct cfdriver acpi_cd; 211 212 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 213 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 214 215 /* 216 * Probe for ACPI support. 217 * 218 * This is called by the machine-dependent ACPI front-end. 219 * Note: this is not an autoconfiguration interface function. 220 */ 221 int 222 acpi_probe(void) 223 { 224 ACPI_TABLE_HEADER *rsdt; 225 const char *func; 226 static int once; 227 bool initialized; 228 ACPI_STATUS rv; 229 230 if (once != 0) 231 panic("%s: already probed", __func__); 232 233 once = 1; 234 func = NULL; 235 initialized = false; 236 237 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 238 239 /* 240 * Start up ACPICA. 241 */ 242 #ifdef ACPI_DEBUGGER 243 if (acpi_dbgr & ACPI_DBGR_INIT) 244 acpi_osd_debugger(); 245 #endif 246 247 AcpiGbl_AllMethodsSerialized = false; 248 AcpiGbl_EnableInterpreterSlack = true; 249 250 rv = AcpiInitializeSubsystem(); 251 252 if (ACPI_SUCCESS(rv)) 253 initialized = true; 254 else { 255 func = "AcpiInitializeSubsystem()"; 256 goto fail; 257 } 258 259 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 260 261 if (ACPI_FAILURE(rv)) { 262 func = "AcpiInitializeTables()"; 263 goto fail; 264 } 265 266 rv = AcpiReallocateRootTable(); 267 268 if (ACPI_FAILURE(rv)) { 269 func = "AcpiReallocateRootTable()"; 270 goto fail; 271 } 272 273 #ifdef ACPI_DEBUGGER 274 if (acpi_dbgr & ACPI_DBGR_TABLES) 275 acpi_osd_debugger(); 276 #endif 277 278 rv = AcpiLoadTables(); 279 280 if (ACPI_FAILURE(rv)) { 281 func = "AcpiLoadTables()"; 282 goto fail; 283 } 284 285 rsdt = acpi_map_rsdt(); 286 287 if (rsdt == NULL) { 288 func = "acpi_map_rsdt()"; 289 rv = AE_ERROR; 290 goto fail; 291 } 292 293 if (acpi_force_load == 0 && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 294 aprint_normal("ACPI: BIOS is listed as broken:\n"); 295 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 296 "AslId <%4.4s,%08x>\n", 297 rsdt->OemId, rsdt->OemTableId, 298 rsdt->OemRevision, 299 rsdt->AslCompilerId, 300 rsdt->AslCompilerRevision); 301 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 302 acpi_unmap_rsdt(rsdt); 303 AcpiTerminate(); 304 return 0; 305 } 306 307 acpi_unmap_rsdt(rsdt); 308 309 #if notyet 310 /* 311 * Install the default address space handlers. 312 */ 313 func = "AcpiInstallAddressSpaceHandler()"; 314 315 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 316 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 317 318 if (ACPI_FAILURE(rv)) 319 goto fail; 320 321 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 322 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 323 324 if (ACPI_FAILURE(rv)) 325 goto fail; 326 327 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 328 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 329 330 if (ACPI_FAILURE(rv)) 331 goto fail; 332 #endif 333 334 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 335 336 if (ACPI_FAILURE(rv)) { 337 func = "AcpiEnableSubsystem()"; 338 goto fail; 339 } 340 341 /* 342 * Looks like we have ACPI! 343 */ 344 return 1; 345 346 fail: 347 KASSERT(rv != AE_OK); 348 KASSERT(func != NULL); 349 350 aprint_error("%s: failed to probe ACPI: %s\n", 351 func, AcpiFormatException(rv)); 352 353 if (initialized != false) 354 (void)AcpiTerminate(); 355 356 return 0; 357 } 358 359 int 360 acpi_check(device_t parent, const char *ifattr) 361 { 362 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 363 } 364 365 /* 366 * Autoconfiguration. 367 */ 368 static int 369 acpi_match(device_t parent, cfdata_t match, void *aux) 370 { 371 /* 372 * XXX: Nada; MD code has called acpi_probe(). 373 */ 374 return 1; 375 } 376 377 static int 378 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 379 { 380 struct cfattach *ca; 381 382 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 383 384 return (ca == &acpi_ca); 385 } 386 387 static void 388 acpi_attach(device_t parent, device_t self, void *aux) 389 { 390 struct acpi_softc *sc = device_private(self); 391 struct acpibus_attach_args *aa = aux; 392 ACPI_TABLE_HEADER *rsdt; 393 ACPI_STATUS rv; 394 395 aprint_naive("\n"); 396 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 397 398 if (acpi_softc != NULL) 399 panic("%s: already attached", __func__); 400 401 rsdt = acpi_map_rsdt(); 402 403 if (rsdt == NULL) 404 aprint_error_dev(self, "X/RSDT: Not found\n"); 405 else { 406 aprint_verbose_dev(self, 407 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 408 rsdt->OemId, rsdt->OemTableId, 409 rsdt->OemRevision, 410 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 411 } 412 413 acpi_unmap_rsdt(rsdt); 414 415 sc->sc_dev = self; 416 sc->sc_root = NULL; 417 418 sc->sc_sleepstate = ACPI_STATE_S0; 419 sc->sc_quirks = acpi_find_quirks(); 420 421 sysmon_power_settype("acpi"); 422 423 sc->sc_iot = aa->aa_iot; 424 sc->sc_memt = aa->aa_memt; 425 sc->sc_pc = aa->aa_pc; 426 sc->sc_pciflags = aa->aa_pciflags; 427 sc->sc_ic = aa->aa_ic; 428 429 SIMPLEQ_INIT(&sc->ad_head); 430 431 acpi_softc = sc; 432 433 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 434 aprint_error_dev(self, "couldn't establish power handler\n"); 435 436 /* 437 * Bring ACPI on-line. 438 */ 439 #ifdef ACPI_DEBUGGER 440 if (acpi_dbgr & ACPI_DBGR_ENABLE) 441 acpi_osd_debugger(); 442 #endif 443 444 #define ACPI_ENABLE_PHASE1 \ 445 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 446 #define ACPI_ENABLE_PHASE2 \ 447 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 448 ACPI_NO_ADDRESS_SPACE_INIT) 449 450 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 451 452 if (ACPI_FAILURE(rv)) 453 goto fail; 454 455 acpi_md_callback(); 456 457 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 458 459 if (ACPI_FAILURE(rv)) 460 goto fail; 461 462 /* 463 * Early EC handler initialization if ECDT table is available. 464 */ 465 config_found_ia(self, "acpiecdtbus", aa, NULL); 466 467 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 468 469 if (ACPI_FAILURE(rv)) 470 goto fail; 471 472 /* 473 * Install global notify handlers. 474 */ 475 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 476 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 477 478 if (ACPI_FAILURE(rv)) 479 goto fail; 480 481 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 482 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 483 484 if (ACPI_FAILURE(rv)) 485 goto fail; 486 487 acpi_active = 1; 488 489 /* Show SCI interrupt. */ 490 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 491 AcpiGbl_FADT.SciInterrupt); 492 493 /* 494 * Install fixed-event handlers. 495 */ 496 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 497 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 498 499 acpitimer_init(); 500 501 #ifdef ACPI_DEBUGGER 502 if (acpi_dbgr & ACPI_DBGR_PROBE) 503 acpi_osd_debugger(); 504 #endif 505 506 /* 507 * Scan the namespace and build our device tree. 508 */ 509 acpi_build_tree(sc); 510 acpi_sleep_init(sc); 511 512 #ifdef ACPI_DEBUGGER 513 if (acpi_dbgr & ACPI_DBGR_RUNNING) 514 acpi_osd_debugger(); 515 #endif 516 517 #ifdef ACPI_DEBUG 518 acpi_debug_init(); 519 #endif 520 521 return; 522 523 fail: 524 KASSERT(rv != AE_OK); 525 526 aprint_error("%s: failed to initialize ACPI: %s\n", 527 __func__, AcpiFormatException(rv)); 528 } 529 530 /* 531 * XXX: This is incomplete. 532 */ 533 static int 534 acpi_detach(device_t self, int flags) 535 { 536 struct acpi_softc *sc = device_private(self); 537 ACPI_STATUS rv; 538 int rc; 539 540 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 541 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 542 543 if (ACPI_FAILURE(rv)) 544 return EBUSY; 545 546 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 547 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 548 549 if (ACPI_FAILURE(rv)) 550 return EBUSY; 551 552 if ((rc = config_detach_children(self, flags)) != 0) 553 return rc; 554 555 if ((rc = acpitimer_detach()) != 0) 556 return rc; 557 558 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 559 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 560 561 pmf_device_deregister(self); 562 563 acpi_softc = NULL; 564 565 return 0; 566 } 567 568 /* 569 * XXX: Need to reclaim any resources? Yes. 570 */ 571 static void 572 acpi_childdet(device_t self, device_t child) 573 { 574 struct acpi_softc *sc = device_private(self); 575 struct acpi_devnode *ad; 576 577 if (sc->sc_apmbus == child) 578 sc->sc_apmbus = NULL; 579 580 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 581 582 if (ad->ad_device == child) 583 ad->ad_device = NULL; 584 } 585 } 586 587 static bool 588 acpi_suspend(device_t dv, const pmf_qual_t *qual) 589 { 590 591 acpi_suspended = 1; 592 593 return true; 594 } 595 596 static bool 597 acpi_resume(device_t dv, const pmf_qual_t *qual) 598 { 599 600 acpi_suspended = 0; 601 602 return true; 603 } 604 605 /* 606 * Namespace scan. 607 */ 608 static void 609 acpi_build_tree(struct acpi_softc *sc) 610 { 611 struct acpi_walkcontext awc; 612 613 awc.aw_sc = sc; 614 awc.aw_parent = NULL; 615 616 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 617 618 KASSERT(sc->sc_root == NULL); 619 KASSERT(awc.aw_parent != NULL); 620 621 sc->sc_root = awc.aw_parent; 622 623 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 624 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 625 626 #ifdef ACPI_DEBUG 627 acpi_print_tree(sc->sc_root, 0); 628 #endif 629 630 acpi_rescan1(sc, NULL, NULL); 631 acpi_rescan_capabilities(sc); 632 633 acpi_pcidev_scan(sc); 634 } 635 636 #ifdef ACPI_DEBUG 637 static void 638 acpi_print_tree(struct acpi_devnode *ad, uint32_t level) 639 { 640 struct acpi_devnode *child; 641 uint32_t i; 642 643 for (i = 0; i < level; i++) 644 aprint_normal(" "); 645 646 aprint_normal("[%02u] %-5s\n", ad->ad_type, ad->ad_name); 647 648 SIMPLEQ_FOREACH(child, &ad->ad_child_head, ad_child_list) 649 acpi_print_tree(child, level + 1); 650 } 651 #endif 652 653 static ACPI_STATUS 654 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 655 void *context, void **status) 656 { 657 struct acpi_walkcontext *awc = context; 658 struct acpi_softc *sc = awc->aw_sc; 659 struct acpi_devnode *ad; 660 ACPI_DEVICE_INFO *devinfo; 661 ACPI_OBJECT_TYPE type; 662 ACPI_NAME_UNION *anu; 663 ACPI_STATUS rv; 664 int clear, i; 665 666 rv = AcpiGetObjectInfo(handle, &devinfo); 667 668 if (ACPI_FAILURE(rv)) 669 return AE_OK; /* Do not terminate the walk. */ 670 671 type = devinfo->Type; 672 673 switch (type) { 674 675 case ACPI_TYPE_DEVICE: 676 677 #ifdef ACPI_ACTIVATE_DEV 678 acpi_activate_device(handle, &devinfo); 679 #endif 680 681 case ACPI_TYPE_PROCESSOR: 682 case ACPI_TYPE_THERMAL: 683 case ACPI_TYPE_POWER: 684 685 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 686 687 if (ad == NULL) 688 return AE_NO_MEMORY; 689 690 ad->ad_device = NULL; 691 ad->ad_notify = NULL; 692 693 ad->ad_type = type; 694 ad->ad_handle = handle; 695 ad->ad_devinfo = devinfo; 696 697 ad->ad_root = sc->sc_dev; 698 ad->ad_parent = awc->aw_parent; 699 700 anu = (ACPI_NAME_UNION *)&devinfo->Name; 701 ad->ad_name[4] = '\0'; 702 703 for (i = 3, clear = 0; i >= 0; i--) { 704 705 if (clear == 0 && anu->Ascii[i] == '_') 706 ad->ad_name[i] = '\0'; 707 else { 708 ad->ad_name[i] = anu->Ascii[i]; 709 clear = 1; 710 } 711 } 712 713 if (ad->ad_name[0] == '\0') 714 ad->ad_name[0] = '_'; 715 716 SIMPLEQ_INIT(&ad->ad_child_head); 717 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 718 719 if (ad->ad_parent != NULL) { 720 721 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 722 ad, ad_child_list); 723 } 724 725 awc->aw_parent = ad; 726 727 #ifdef ACPIVERBOSE 728 729 if (type != ACPI_TYPE_DEVICE) 730 return AE_OK; 731 732 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 733 734 aprint_normal("HID %-10s ", 735 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 736 devinfo->HardwareId.String: "-"); 737 738 aprint_normal("UID %-4s ", 739 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 740 devinfo->UniqueId.String : "-"); 741 742 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 743 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 744 else 745 aprint_normal("STA %10s ", "-"); 746 747 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 748 aprint_normal("ADR 0x%016" PRIX64"", 749 devinfo->Address); 750 751 aprint_normal("\n"); 752 #endif 753 } 754 755 return AE_OK; 756 } 757 758 static ACPI_STATUS 759 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 760 void *context, void **status) 761 { 762 struct acpi_walkcontext *awc = context; 763 764 KASSERT(awc != NULL); 765 KASSERT(awc->aw_parent != NULL); 766 767 if (handle == awc->aw_parent->ad_handle) 768 awc->aw_parent = awc->aw_parent->ad_parent; 769 770 return AE_OK; 771 } 772 773 #ifdef ACPI_ACTIVATE_DEV 774 775 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 776 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 777 778 static void 779 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 780 { 781 ACPI_DEVICE_INFO *newdi; 782 ACPI_STATUS rv; 783 uint32_t old; 784 785 /* 786 * If the device is valid and present, 787 * but not enabled, try to activate it. 788 */ 789 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 790 return; 791 792 old = (*di)->CurrentStatus; 793 794 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 795 return; 796 797 rv = acpi_allocate_resources(handle); 798 799 if (ACPI_FAILURE(rv)) 800 goto fail; 801 802 rv = AcpiGetObjectInfo(handle, &newdi); 803 804 if (ACPI_FAILURE(rv)) 805 goto fail; 806 807 ACPI_FREE(*di); 808 *di = newdi; 809 810 aprint_verbose_dev(acpi_softc->sc_dev, 811 "%s activated, STA 0x%08X -> STA 0x%08X\n", 812 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 813 814 return; 815 816 fail: 817 aprint_error_dev(acpi_softc->sc_dev, "failed to " 818 "activate %s\n", (*di)->HardwareId.String); 819 } 820 821 /* 822 * XXX: This very incomplete. 823 */ 824 ACPI_STATUS 825 acpi_allocate_resources(ACPI_HANDLE handle) 826 { 827 ACPI_BUFFER bufp, bufc, bufn; 828 ACPI_RESOURCE *resp, *resc, *resn; 829 ACPI_RESOURCE_IRQ *irq; 830 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 831 ACPI_STATUS rv; 832 uint delta; 833 834 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 835 if (ACPI_FAILURE(rv)) 836 goto out; 837 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 838 if (ACPI_FAILURE(rv)) { 839 goto out1; 840 } 841 842 bufn.Length = 1000; 843 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 844 resp = bufp.Pointer; 845 resc = bufc.Pointer; 846 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 847 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 848 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 849 resp = ACPI_NEXT_RESOURCE(resp); 850 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 851 break; 852 /* Found identical Id */ 853 resn->Type = resc->Type; 854 switch (resc->Type) { 855 case ACPI_RESOURCE_TYPE_IRQ: 856 memcpy(&resn->Data, &resp->Data, 857 sizeof(ACPI_RESOURCE_IRQ)); 858 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 859 irq->Interrupts[0] = 860 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 861 Interrupts[irq->InterruptCount-1]; 862 irq->InterruptCount = 1; 863 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 864 break; 865 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 866 memcpy(&resn->Data, &resp->Data, 867 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 868 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 869 #if 0 870 /* 871 * XXX: Not duplicating the interrupt logic above 872 * because its not clear what it accomplishes. 873 */ 874 xirq->Interrupts[0] = 875 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 876 Interrupts[irq->NumberOfInterrupts-1]; 877 xirq->NumberOfInterrupts = 1; 878 #endif 879 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 880 break; 881 case ACPI_RESOURCE_TYPE_IO: 882 memcpy(&resn->Data, &resp->Data, 883 sizeof(ACPI_RESOURCE_IO)); 884 resn->Length = resp->Length; 885 break; 886 default: 887 aprint_error_dev(acpi_softc->sc_dev, 888 "%s: invalid type %u\n", __func__, resc->Type); 889 rv = AE_BAD_DATA; 890 goto out2; 891 } 892 resc = ACPI_NEXT_RESOURCE(resc); 893 resn = ACPI_NEXT_RESOURCE(resn); 894 resp = ACPI_NEXT_RESOURCE(resp); 895 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 896 if (delta >= 897 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 898 bufn.Length *= 2; 899 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 900 M_ACPI, M_WAITOK); 901 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 902 delta); 903 } 904 } 905 906 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 907 aprint_error_dev(acpi_softc->sc_dev, 908 "%s: resc not exhausted\n", __func__); 909 rv = AE_BAD_DATA; 910 goto out3; 911 } 912 913 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 914 rv = AcpiSetCurrentResources(handle, &bufn); 915 916 if (ACPI_FAILURE(rv)) 917 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 918 "resources: %s\n", __func__, AcpiFormatException(rv)); 919 920 out3: 921 free(bufn.Pointer, M_ACPI); 922 out2: 923 ACPI_FREE(bufc.Pointer); 924 out1: 925 ACPI_FREE(bufp.Pointer); 926 out: 927 return rv; 928 } 929 930 #undef ACPI_DEV_VALID 931 #undef ACPI_DEV_STATUS 932 933 #endif /* ACPI_ACTIVATE_DEV */ 934 935 /* 936 * Device attachment. 937 */ 938 static int 939 acpi_rescan(device_t self, const char *ifattr, const int *locators) 940 { 941 struct acpi_softc *sc = device_private(self); 942 943 acpi_rescan1(sc, ifattr, locators); 944 945 return 0; 946 } 947 948 static void 949 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 950 { 951 952 if (ifattr_match(ifattr, "acpinodebus")) 953 acpi_rescan_nodes(sc); 954 955 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 956 sc->sc_apmbus = config_found_ia(sc->sc_dev, 957 "acpiapmbus", NULL, NULL); 958 } 959 960 static void 961 acpi_rescan_nodes(struct acpi_softc *sc) 962 { 963 struct acpi_attach_args aa; 964 struct acpi_devnode *ad; 965 966 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 967 968 if (ad->ad_device != NULL) 969 continue; 970 971 aa.aa_node = ad; 972 aa.aa_iot = sc->sc_iot; 973 aa.aa_memt = sc->sc_memt; 974 aa.aa_pc = sc->sc_pc; 975 aa.aa_pciflags = sc->sc_pciflags; 976 aa.aa_ic = sc->sc_ic; 977 978 /* 979 * XXX: We only attach devices which are present, enabled, and 980 * functioning properly. However, if a device is enabled, 981 * it is decoding resources and we should claim these, 982 * if possible. This requires changes to bus_space(9). 983 */ 984 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 985 986 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 987 ACPI_VALID_STA && 988 (ad->ad_devinfo->CurrentStatus & 989 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 990 ACPI_STA_DEV_OK)) != 991 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 992 ACPI_STA_DEV_OK)) 993 continue; 994 } 995 996 /* 997 * XXX: The same problem as above. As for example 998 * thermal zones and power resources do not 999 * have a valid HID, only evaluate devices. 1000 */ 1001 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 1002 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 1003 continue; 1004 1005 /* 1006 * Handled internally. 1007 */ 1008 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 1009 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 1010 continue; 1011 1012 /* 1013 * Skip ignored HIDs. 1014 */ 1015 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 1016 continue; 1017 1018 ad->ad_device = config_found_ia(sc->sc_dev, 1019 "acpinodebus", &aa, acpi_print); 1020 } 1021 } 1022 1023 #define ACPI_STA_DEV_VALID \ 1024 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 1025 1026 static void 1027 acpi_rescan_capabilities(struct acpi_softc *sc) 1028 { 1029 struct acpi_devnode *ad; 1030 ACPI_DEVICE_INFO *di; 1031 ACPI_HANDLE tmp; 1032 ACPI_STATUS rv; 1033 1034 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1035 1036 di = ad->ad_devinfo; 1037 1038 if (di->Type != ACPI_TYPE_DEVICE) 1039 continue; 1040 1041 if ((di->Valid & ACPI_VALID_STA) != 0 && 1042 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 1043 ACPI_STA_DEV_VALID) 1044 continue; 1045 1046 /* 1047 * Scan power resource capabilities. 1048 */ 1049 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1050 1051 if (ACPI_FAILURE(rv)) 1052 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 1053 1054 if (ACPI_SUCCESS(rv)) 1055 ad->ad_flags |= ACPI_DEVICE_POWER; 1056 1057 /* 1058 * Scan wake-up capabilities. 1059 */ 1060 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1061 1062 if (ACPI_SUCCESS(rv)) { 1063 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1064 acpi_wakedev_add(ad); 1065 } 1066 1067 if (ad->ad_flags != 0) { 1068 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 1069 1070 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 1071 aprint_debug("power "); 1072 1073 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 1074 aprint_debug("wake-up "); 1075 1076 aprint_debug("\n"); 1077 } 1078 } 1079 } 1080 1081 #undef ACPI_STA_DEV_VALID 1082 1083 static int 1084 acpi_print(void *aux, const char *pnp) 1085 { 1086 struct acpi_attach_args *aa = aux; 1087 ACPI_STATUS rv; 1088 1089 if (pnp) { 1090 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1091 char *pnpstr = 1092 aa->aa_node->ad_devinfo->HardwareId.String; 1093 ACPI_BUFFER buf; 1094 1095 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1096 pnpstr); 1097 1098 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1099 "_STR", &buf); 1100 if (ACPI_SUCCESS(rv)) { 1101 ACPI_OBJECT *obj = buf.Pointer; 1102 switch (obj->Type) { 1103 case ACPI_TYPE_STRING: 1104 aprint_normal("[%s] ", obj->String.Pointer); 1105 break; 1106 case ACPI_TYPE_BUFFER: 1107 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1108 break; 1109 default: 1110 aprint_normal("type %u ",obj->Type); 1111 break; 1112 } 1113 ACPI_FREE(buf.Pointer); 1114 } 1115 #ifdef ACPIVERBOSE 1116 else { 1117 int i; 1118 1119 for (i = 0; i < __arraycount(acpi_knowndevs); 1120 i++) { 1121 if (strcmp(acpi_knowndevs[i].pnp, 1122 pnpstr) == 0) { 1123 aprint_normal("[%s] ", 1124 acpi_knowndevs[i].str); 1125 } 1126 } 1127 } 1128 1129 #endif 1130 aprint_normal("at %s", pnp); 1131 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1132 aprint_normal("%s (ACPI Object Type '%s' " 1133 "[0x%02x]) ", aa->aa_node->ad_name, 1134 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1135 aa->aa_node->ad_devinfo->Type); 1136 aprint_normal("at %s", pnp); 1137 } else 1138 return 0; 1139 } else { 1140 aprint_normal(" (%s", aa->aa_node->ad_name); 1141 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1142 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1143 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1144 const char *uid; 1145 1146 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1147 if (uid[0] == '\0') 1148 uid = "<null>"; 1149 aprint_normal("-%s", uid); 1150 } 1151 } 1152 aprint_normal(")"); 1153 } 1154 1155 return UNCONF; 1156 } 1157 1158 /* 1159 * Notify. 1160 */ 1161 static void 1162 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1163 { 1164 struct acpi_softc *sc = acpi_softc; 1165 struct acpi_devnode *ad; 1166 1167 KASSERT(sc != NULL); 1168 KASSERT(aux == NULL); 1169 KASSERT(acpi_active != 0); 1170 1171 if (acpi_suspended != 0) 1172 return; 1173 1174 /* 1175 * System: 0x00 - 0x7F. 1176 * Device: 0x80 - 0xFF. 1177 */ 1178 switch (event) { 1179 1180 case ACPI_NOTIFY_BUS_CHECK: 1181 case ACPI_NOTIFY_DEVICE_CHECK: 1182 case ACPI_NOTIFY_DEVICE_WAKE: 1183 case ACPI_NOTIFY_EJECT_REQUEST: 1184 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1185 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1186 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1187 case ACPI_NOTIFY_POWER_FAULT: 1188 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1189 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1190 case ACPI_NOTIFY_RESERVED: 1191 case ACPI_NOTIFY_LOCALITY_UPDATE: 1192 break; 1193 } 1194 1195 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1196 "%s (%p)\n", event, acpi_name(handle), handle)); 1197 1198 /* 1199 * We deliver notifications only to drivers 1200 * that have been succesfully attached and 1201 * that have registered a handler with us. 1202 * The opaque pointer is always the device_t. 1203 */ 1204 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1205 1206 if (ad->ad_device == NULL) 1207 continue; 1208 1209 if (ad->ad_notify == NULL) 1210 continue; 1211 1212 if (ad->ad_handle != handle) 1213 continue; 1214 1215 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1216 1217 return; 1218 } 1219 1220 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1221 "for %s (%p)\n", event, acpi_name(handle), handle); 1222 } 1223 1224 bool 1225 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1226 { 1227 struct acpi_softc *sc = acpi_softc; 1228 1229 KASSERT(sc != NULL); 1230 KASSERT(acpi_active != 0); 1231 1232 if (acpi_suspended != 0) 1233 goto fail; 1234 1235 if (ad == NULL || notify == NULL) 1236 goto fail; 1237 1238 ad->ad_notify = notify; 1239 1240 return true; 1241 1242 fail: 1243 aprint_error_dev(sc->sc_dev, "failed to register notify " 1244 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1245 1246 return false; 1247 } 1248 1249 void 1250 acpi_deregister_notify(struct acpi_devnode *ad) 1251 { 1252 1253 ad->ad_notify = NULL; 1254 } 1255 1256 /* 1257 * Fixed buttons. 1258 */ 1259 static void 1260 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1261 { 1262 struct sysmon_pswitch *smpsw; 1263 ACPI_STATUS rv; 1264 int type; 1265 1266 switch (event) { 1267 1268 case ACPI_EVENT_POWER_BUTTON: 1269 1270 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1271 return; 1272 1273 type = PSWITCH_TYPE_POWER; 1274 smpsw = &sc->sc_smpsw_power; 1275 break; 1276 1277 case ACPI_EVENT_SLEEP_BUTTON: 1278 1279 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1280 return; 1281 1282 type = PSWITCH_TYPE_SLEEP; 1283 smpsw = &sc->sc_smpsw_sleep; 1284 break; 1285 1286 default: 1287 rv = AE_TYPE; 1288 goto fail; 1289 } 1290 1291 smpsw->smpsw_type = type; 1292 smpsw->smpsw_name = device_xname(sc->sc_dev); 1293 1294 if (sysmon_pswitch_register(smpsw) != 0) { 1295 rv = AE_ERROR; 1296 goto fail; 1297 } 1298 1299 rv = AcpiInstallFixedEventHandler(event, 1300 acpi_fixed_button_handler, smpsw); 1301 1302 if (ACPI_FAILURE(rv)) 1303 goto fail; 1304 1305 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1306 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1307 1308 return; 1309 1310 fail: 1311 aprint_error_dev(sc->sc_dev, "failed to register " 1312 "fixed event: %s\n", AcpiFormatException(rv)); 1313 } 1314 1315 static void 1316 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1317 { 1318 struct sysmon_pswitch *smpsw; 1319 ACPI_STATUS rv; 1320 1321 switch (event) { 1322 1323 case ACPI_EVENT_POWER_BUTTON: 1324 smpsw = &sc->sc_smpsw_power; 1325 1326 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1327 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1328 return; 1329 } 1330 1331 break; 1332 1333 case ACPI_EVENT_SLEEP_BUTTON: 1334 smpsw = &sc->sc_smpsw_sleep; 1335 1336 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1337 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1338 return; 1339 } 1340 1341 break; 1342 1343 default: 1344 rv = AE_TYPE; 1345 goto fail; 1346 } 1347 1348 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1349 1350 if (ACPI_SUCCESS(rv)) { 1351 sysmon_pswitch_unregister(smpsw); 1352 return; 1353 } 1354 1355 fail: 1356 aprint_error_dev(sc->sc_dev, "failed to deregister " 1357 "fixed event: %s\n", AcpiFormatException(rv)); 1358 } 1359 1360 static uint32_t 1361 acpi_fixed_button_handler(void *context) 1362 { 1363 static const int handler = OSL_NOTIFY_HANDLER; 1364 struct sysmon_pswitch *smpsw = context; 1365 1366 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1367 1368 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1369 1370 return ACPI_INTERRUPT_HANDLED; 1371 } 1372 1373 static void 1374 acpi_fixed_button_pressed(void *context) 1375 { 1376 struct sysmon_pswitch *smpsw = context; 1377 1378 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1379 __func__, smpsw->smpsw_name)); 1380 1381 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1382 } 1383 1384 /* 1385 * Sleep. 1386 */ 1387 static void 1388 acpi_sleep_init(struct acpi_softc *sc) 1389 { 1390 uint8_t a, b, i; 1391 ACPI_STATUS rv; 1392 1393 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1394 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1395 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1396 1397 /* 1398 * Evaluate supported sleep states. 1399 */ 1400 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1401 1402 rv = AcpiGetSleepTypeData(i, &a, &b); 1403 1404 if (ACPI_SUCCESS(rv)) 1405 sc->sc_sleepstates |= __BIT(i); 1406 } 1407 } 1408 1409 ACPI_STATUS 1410 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1411 { 1412 ACPI_STATUS rv = AE_OK; 1413 int err; 1414 1415 if (state == sc->sc_sleepstate) 1416 return AE_OK; 1417 1418 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1419 1420 switch (state) { 1421 1422 case ACPI_STATE_S0: 1423 break; 1424 1425 case ACPI_STATE_S1: 1426 case ACPI_STATE_S2: 1427 case ACPI_STATE_S3: 1428 case ACPI_STATE_S4: 1429 1430 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1431 aprint_error_dev(sc->sc_dev, "sleep state " 1432 "S%d is not available\n", state); 1433 break; 1434 } 1435 1436 acpi_wakedev_commit(sc, state); 1437 1438 if (state != ACPI_STATE_S1 && 1439 pmf_system_suspend(PMF_Q_NONE) != true) { 1440 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1441 break; 1442 } 1443 1444 rv = AcpiEnterSleepStatePrep(state); 1445 1446 if (ACPI_FAILURE(rv)) { 1447 aprint_error_dev(sc->sc_dev, "failed to prepare " 1448 "S%d: %s\n", state, AcpiFormatException(rv)); 1449 break; 1450 } 1451 1452 sc->sc_sleepstate = state; 1453 1454 if (state == ACPI_STATE_S1) { 1455 1456 /* Just enter the state. */ 1457 acpi_md_OsDisableInterrupt(); 1458 rv = AcpiEnterSleepState(state); 1459 1460 if (ACPI_FAILURE(rv)) 1461 aprint_error_dev(sc->sc_dev, "failed to " 1462 "enter S1: %s\n", AcpiFormatException(rv)); 1463 1464 (void)AcpiLeaveSleepState(state); 1465 1466 } else { 1467 1468 err = acpi_md_sleep(state); 1469 1470 if (state == ACPI_STATE_S4) 1471 AcpiEnable(); 1472 1473 pmf_system_bus_resume(PMF_Q_NONE); 1474 (void)AcpiLeaveSleepState(state); 1475 pmf_system_resume(PMF_Q_NONE); 1476 } 1477 1478 break; 1479 case ACPI_STATE_S5: 1480 1481 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1482 1483 if (ACPI_FAILURE(rv)) { 1484 aprint_error_dev(sc->sc_dev, "failed to prepare " 1485 "S%d: %s\n", state, AcpiFormatException(rv)); 1486 break; 1487 } 1488 1489 DELAY(1000000); 1490 1491 sc->sc_sleepstate = state; 1492 acpi_md_OsDisableInterrupt(); 1493 1494 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1495 1496 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1497 break; 1498 } 1499 1500 sc->sc_sleepstate = ACPI_STATE_S0; 1501 1502 return rv; 1503 } 1504 1505 /* 1506 * Sysctl. 1507 */ 1508 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1509 { 1510 const struct sysctlnode *mnode, *rnode; 1511 int err; 1512 1513 err = sysctl_createv(clog, 0, NULL, &rnode, 1514 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1515 NULL, NULL, 0, NULL, 0, 1516 CTL_HW, CTL_EOL); 1517 1518 if (err != 0) 1519 return; 1520 1521 err = sysctl_createv(clog, 0, &rnode, &rnode, 1522 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1523 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1524 NULL, 0, NULL, 0, 1525 CTL_CREATE, CTL_EOL); 1526 1527 if (err != 0) 1528 return; 1529 1530 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1531 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1532 "root", SYSCTL_DESCR("ACPI root pointer"), 1533 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1534 CTL_CREATE, CTL_EOL); 1535 1536 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1537 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1538 "supported_states", SYSCTL_DESCR("Supported system states"), 1539 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1540 CTL_CREATE, CTL_EOL); 1541 1542 err = sysctl_createv(NULL, 0, NULL, &mnode, 1543 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1544 NULL, NULL, 0, NULL, 0, 1545 CTL_MACHDEP, CTL_EOL); 1546 1547 if (err == 0) { 1548 1549 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1550 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1551 "sleep_state", SYSCTL_DESCR("System sleep state"), 1552 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1553 CTL_CREATE, CTL_EOL); 1554 } 1555 1556 err = sysctl_createv(clog, 0, &rnode, &rnode, 1557 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1558 "stat", SYSCTL_DESCR("ACPI statistics"), 1559 NULL, 0, NULL, 0, 1560 CTL_CREATE, CTL_EOL); 1561 1562 if (err != 0) 1563 return; 1564 1565 (void)sysctl_createv(clog, 0, &rnode, NULL, 1566 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1567 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1568 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1569 CTL_CREATE, CTL_EOL); 1570 1571 (void)sysctl_createv(clog, 0, &rnode, NULL, 1572 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1573 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1574 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1575 CTL_CREATE, CTL_EOL); 1576 1577 (void)sysctl_createv(clog, 0, &rnode, NULL, 1578 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1579 "fixed", SYSCTL_DESCR("Number of fixed events"), 1580 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1581 CTL_CREATE, CTL_EOL); 1582 1583 (void)sysctl_createv(clog, 0, &rnode, NULL, 1584 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1585 "method", SYSCTL_DESCR("Number of methods executed"), 1586 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1587 CTL_CREATE, CTL_EOL); 1588 1589 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1590 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1591 } 1592 1593 static int 1594 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1595 { 1596 struct sysctlnode node; 1597 uint64_t t; 1598 int err, i; 1599 1600 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1601 t += AcpiFixedEventCount[i]; 1602 1603 node = *rnode; 1604 node.sysctl_data = &t; 1605 1606 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1607 1608 if (err || newp == NULL) 1609 return err; 1610 1611 return 0; 1612 } 1613 1614 static int 1615 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1616 { 1617 struct acpi_softc *sc = acpi_softc; 1618 struct sysctlnode node; 1619 int err, t; 1620 1621 if (acpi_softc == NULL) 1622 return ENOSYS; 1623 1624 node = *rnode; 1625 t = sc->sc_sleepstate; 1626 node.sysctl_data = &t; 1627 1628 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1629 1630 if (err || newp == NULL) 1631 return err; 1632 1633 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1634 return EINVAL; 1635 1636 acpi_enter_sleep_state(sc, t); 1637 1638 return 0; 1639 } 1640 1641 static int 1642 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1643 { 1644 struct acpi_softc *sc = acpi_softc; 1645 struct sysctlnode node; 1646 char t[3 * 6 + 1]; 1647 int err; 1648 1649 if (acpi_softc == NULL) 1650 return ENOSYS; 1651 1652 (void)memset(t, '\0', sizeof(t)); 1653 1654 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1655 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1656 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1657 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1658 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1659 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1660 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1661 1662 node = *rnode; 1663 node.sysctl_data = &t; 1664 1665 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1666 1667 if (err || newp == NULL) 1668 return err; 1669 1670 return 0; 1671 } 1672 1673 /* 1674 * Miscellaneous. 1675 */ 1676 ACPI_PHYSICAL_ADDRESS 1677 acpi_OsGetRootPointer(void) 1678 { 1679 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1680 1681 /* 1682 * We let MD code handle this since there are multiple ways to do it: 1683 * 1684 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1685 * 1686 * IA-64: Use the EFI. 1687 */ 1688 PhysicalAddress = acpi_md_OsGetRootPointer(); 1689 1690 if (acpi_root_pointer == 0) 1691 acpi_root_pointer = PhysicalAddress; 1692 1693 return PhysicalAddress; 1694 } 1695 1696 static ACPI_TABLE_HEADER * 1697 acpi_map_rsdt(void) 1698 { 1699 ACPI_PHYSICAL_ADDRESS paddr; 1700 ACPI_TABLE_RSDP *rsdp; 1701 1702 paddr = AcpiOsGetRootPointer(); 1703 1704 if (paddr == 0) 1705 return NULL; 1706 1707 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1708 1709 if (rsdp == NULL) 1710 return NULL; 1711 1712 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1713 paddr = rsdp->XsdtPhysicalAddress; 1714 else 1715 paddr = rsdp->RsdtPhysicalAddress; 1716 1717 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1718 1719 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1720 } 1721 1722 static void 1723 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1724 { 1725 1726 if (rsdt == NULL) 1727 return; 1728 1729 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1730 } 1731
Indexes created Wed Oct 01 19:09:53 GMT 2025