acpi.c revision 1.176
1 /* $NetBSD: acpi.c,v 1.176 2010/04/18 14:05:26 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 1.176 2010/04/18 14:05:26 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 /* Our current state is "awake". */ 490 sc->sc_sleepstate = ACPI_STATE_S0; 491 492 /* Show SCI interrupt. */ 493 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 494 AcpiGbl_FADT.SciInterrupt); 495 496 /* 497 * Install fixed-event handlers. 498 */ 499 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 500 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 501 502 acpitimer_init(); 503 504 #ifdef ACPI_DEBUGGER 505 if (acpi_dbgr & ACPI_DBGR_PROBE) 506 acpi_osd_debugger(); 507 #endif 508 509 /* 510 * Scan the namespace and build our device tree. 511 */ 512 acpi_build_tree(sc); 513 acpi_sleep_init(sc); 514 515 #ifdef ACPI_DEBUGGER 516 if (acpi_dbgr & ACPI_DBGR_RUNNING) 517 acpi_osd_debugger(); 518 #endif 519 520 #ifdef ACPI_DEBUG 521 acpi_debug_init(); 522 #endif 523 524 return; 525 526 fail: 527 KASSERT(rv != AE_OK); 528 529 aprint_error("%s: failed to initialize ACPI: %s\n", 530 __func__, AcpiFormatException(rv)); 531 } 532 533 /* 534 * XXX: This is incomplete. 535 */ 536 static int 537 acpi_detach(device_t self, int flags) 538 { 539 struct acpi_softc *sc = device_private(self); 540 ACPI_STATUS rv; 541 int rc; 542 543 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 544 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 545 546 if (ACPI_FAILURE(rv)) 547 return EBUSY; 548 549 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 550 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 551 552 if (ACPI_FAILURE(rv)) 553 return EBUSY; 554 555 if ((rc = config_detach_children(self, flags)) != 0) 556 return rc; 557 558 if ((rc = acpitimer_detach()) != 0) 559 return rc; 560 561 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 562 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 563 564 pmf_device_deregister(self); 565 566 acpi_softc = NULL; 567 568 return 0; 569 } 570 571 /* 572 * XXX: Need to reclaim any resources? Yes. 573 */ 574 static void 575 acpi_childdet(device_t self, device_t child) 576 { 577 struct acpi_softc *sc = device_private(self); 578 struct acpi_devnode *ad; 579 580 if (sc->sc_apmbus == child) 581 sc->sc_apmbus = NULL; 582 583 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 584 585 if (ad->ad_device == child) 586 ad->ad_device = NULL; 587 } 588 } 589 590 static bool 591 acpi_suspend(device_t dv, const pmf_qual_t *qual) 592 { 593 594 acpi_suspended = 1; 595 596 return true; 597 } 598 599 static bool 600 acpi_resume(device_t dv, const pmf_qual_t *qual) 601 { 602 603 acpi_suspended = 0; 604 605 return true; 606 } 607 608 /* 609 * Namespace scan. 610 */ 611 static void 612 acpi_build_tree(struct acpi_softc *sc) 613 { 614 struct acpi_walkcontext awc; 615 616 awc.aw_sc = sc; 617 awc.aw_parent = NULL; 618 619 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 620 621 KASSERT(sc->sc_root == NULL); 622 KASSERT(awc.aw_parent != NULL); 623 624 sc->sc_root = awc.aw_parent; 625 626 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 627 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 628 629 #ifdef ACPI_DEBUG 630 acpi_print_tree(sc->sc_root, 0); 631 #endif 632 633 acpi_rescan1(sc, NULL, NULL); 634 acpi_rescan_capabilities(sc); 635 636 acpi_pcidev_scan(sc); 637 } 638 639 #ifdef ACPI_DEBUG 640 static void 641 acpi_print_tree(struct acpi_devnode *ad, uint32_t level) 642 { 643 struct acpi_devnode *child; 644 uint32_t i; 645 646 for (i = 0; i < level; i++) 647 aprint_normal(" "); 648 649 aprint_normal("[%02u] %-5s\n", ad->ad_type, ad->ad_name); 650 651 SIMPLEQ_FOREACH(child, &ad->ad_child_head, ad_child_list) 652 acpi_print_tree(child, level + 1); 653 } 654 #endif 655 656 static ACPI_STATUS 657 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 658 void *context, void **status) 659 { 660 struct acpi_walkcontext *awc = context; 661 struct acpi_softc *sc = awc->aw_sc; 662 struct acpi_devnode *ad; 663 ACPI_DEVICE_INFO *devinfo; 664 ACPI_OBJECT_TYPE type; 665 ACPI_NAME_UNION *anu; 666 ACPI_STATUS rv; 667 int clear, i; 668 669 rv = AcpiGetObjectInfo(handle, &devinfo); 670 671 if (ACPI_FAILURE(rv)) 672 return AE_OK; /* Do not terminate the walk. */ 673 674 type = devinfo->Type; 675 676 switch (type) { 677 678 case ACPI_TYPE_DEVICE: 679 680 #ifdef ACPI_ACTIVATE_DEV 681 acpi_activate_device(handle, &devinfo); 682 #endif 683 684 case ACPI_TYPE_PROCESSOR: 685 case ACPI_TYPE_THERMAL: 686 case ACPI_TYPE_POWER: 687 688 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 689 690 if (ad == NULL) 691 return AE_NO_MEMORY; 692 693 ad->ad_device = NULL; 694 ad->ad_notify = NULL; 695 696 ad->ad_type = type; 697 ad->ad_handle = handle; 698 ad->ad_devinfo = devinfo; 699 700 ad->ad_root = sc->sc_dev; 701 ad->ad_parent = awc->aw_parent; 702 703 anu = (ACPI_NAME_UNION *)&devinfo->Name; 704 ad->ad_name[4] = '\0'; 705 706 for (i = 3, clear = 0; i >= 0; i--) { 707 708 if (clear == 0 && anu->Ascii[i] == '_') 709 ad->ad_name[i] = '\0'; 710 else { 711 ad->ad_name[i] = anu->Ascii[i]; 712 clear = 1; 713 } 714 } 715 716 if (ad->ad_name[0] == '\0') 717 ad->ad_name[0] = '_'; 718 719 SIMPLEQ_INIT(&ad->ad_child_head); 720 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 721 722 if (ad->ad_parent != NULL) { 723 724 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 725 ad, ad_child_list); 726 } 727 728 awc->aw_parent = ad; 729 730 #ifdef ACPIVERBOSE 731 732 if (type != ACPI_TYPE_DEVICE) 733 return AE_OK; 734 735 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 736 737 aprint_normal("HID %-10s ", 738 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 739 devinfo->HardwareId.String: "-"); 740 741 aprint_normal("UID %-4s ", 742 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 743 devinfo->UniqueId.String : "-"); 744 745 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 746 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 747 else 748 aprint_normal("STA %10s ", "-"); 749 750 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 751 aprint_normal("ADR 0x%016" PRIX64"", 752 devinfo->Address); 753 754 aprint_normal("\n"); 755 #endif 756 } 757 758 return AE_OK; 759 } 760 761 static ACPI_STATUS 762 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 763 void *context, void **status) 764 { 765 struct acpi_walkcontext *awc = context; 766 767 KASSERT(awc != NULL); 768 KASSERT(awc->aw_parent != NULL); 769 770 if (handle == awc->aw_parent->ad_handle) 771 awc->aw_parent = awc->aw_parent->ad_parent; 772 773 return AE_OK; 774 } 775 776 #ifdef ACPI_ACTIVATE_DEV 777 778 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 779 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 780 781 static void 782 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 783 { 784 ACPI_DEVICE_INFO *newdi; 785 ACPI_STATUS rv; 786 uint32_t old; 787 788 /* 789 * If the device is valid and present, 790 * but not enabled, try to activate it. 791 */ 792 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 793 return; 794 795 old = (*di)->CurrentStatus; 796 797 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 798 return; 799 800 rv = acpi_allocate_resources(handle); 801 802 if (ACPI_FAILURE(rv)) 803 goto fail; 804 805 rv = AcpiGetObjectInfo(handle, &newdi); 806 807 if (ACPI_FAILURE(rv)) 808 goto fail; 809 810 ACPI_FREE(*di); 811 *di = newdi; 812 813 aprint_verbose_dev(acpi_softc->sc_dev, 814 "%s activated, STA 0x%08X -> STA 0x%08X\n", 815 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 816 817 return; 818 819 fail: 820 aprint_error_dev(acpi_softc->sc_dev, "failed to " 821 "activate %s\n", (*di)->HardwareId.String); 822 } 823 824 /* 825 * XXX: This very incomplete. 826 */ 827 ACPI_STATUS 828 acpi_allocate_resources(ACPI_HANDLE handle) 829 { 830 ACPI_BUFFER bufp, bufc, bufn; 831 ACPI_RESOURCE *resp, *resc, *resn; 832 ACPI_RESOURCE_IRQ *irq; 833 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 834 ACPI_STATUS rv; 835 uint delta; 836 837 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 838 if (ACPI_FAILURE(rv)) 839 goto out; 840 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 841 if (ACPI_FAILURE(rv)) { 842 goto out1; 843 } 844 845 bufn.Length = 1000; 846 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 847 resp = bufp.Pointer; 848 resc = bufc.Pointer; 849 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 850 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 851 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 852 resp = ACPI_NEXT_RESOURCE(resp); 853 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 854 break; 855 /* Found identical Id */ 856 resn->Type = resc->Type; 857 switch (resc->Type) { 858 case ACPI_RESOURCE_TYPE_IRQ: 859 memcpy(&resn->Data, &resp->Data, 860 sizeof(ACPI_RESOURCE_IRQ)); 861 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 862 irq->Interrupts[0] = 863 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 864 Interrupts[irq->InterruptCount-1]; 865 irq->InterruptCount = 1; 866 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 867 break; 868 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 869 memcpy(&resn->Data, &resp->Data, 870 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 871 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 872 #if 0 873 /* 874 * XXX: Not duplicating the interrupt logic above 875 * because its not clear what it accomplishes. 876 */ 877 xirq->Interrupts[0] = 878 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 879 Interrupts[irq->NumberOfInterrupts-1]; 880 xirq->NumberOfInterrupts = 1; 881 #endif 882 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 883 break; 884 case ACPI_RESOURCE_TYPE_IO: 885 memcpy(&resn->Data, &resp->Data, 886 sizeof(ACPI_RESOURCE_IO)); 887 resn->Length = resp->Length; 888 break; 889 default: 890 aprint_error_dev(acpi_softc->sc_dev, 891 "%s: invalid type %u\n", __func__, resc->Type); 892 rv = AE_BAD_DATA; 893 goto out2; 894 } 895 resc = ACPI_NEXT_RESOURCE(resc); 896 resn = ACPI_NEXT_RESOURCE(resn); 897 resp = ACPI_NEXT_RESOURCE(resp); 898 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 899 if (delta >= 900 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 901 bufn.Length *= 2; 902 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 903 M_ACPI, M_WAITOK); 904 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 905 delta); 906 } 907 } 908 909 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 910 aprint_error_dev(acpi_softc->sc_dev, 911 "%s: resc not exhausted\n", __func__); 912 rv = AE_BAD_DATA; 913 goto out3; 914 } 915 916 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 917 rv = AcpiSetCurrentResources(handle, &bufn); 918 919 if (ACPI_FAILURE(rv)) 920 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 921 "resources: %s\n", __func__, AcpiFormatException(rv)); 922 923 out3: 924 free(bufn.Pointer, M_ACPI); 925 out2: 926 ACPI_FREE(bufc.Pointer); 927 out1: 928 ACPI_FREE(bufp.Pointer); 929 out: 930 return rv; 931 } 932 933 #undef ACPI_DEV_VALID 934 #undef ACPI_DEV_STATUS 935 936 #endif /* ACPI_ACTIVATE_DEV */ 937 938 /* 939 * Device attachment. 940 */ 941 static int 942 acpi_rescan(device_t self, const char *ifattr, const int *locators) 943 { 944 struct acpi_softc *sc = device_private(self); 945 946 acpi_rescan1(sc, ifattr, locators); 947 948 return 0; 949 } 950 951 static void 952 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 953 { 954 955 if (ifattr_match(ifattr, "acpinodebus")) 956 acpi_rescan_nodes(sc); 957 958 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 959 sc->sc_apmbus = config_found_ia(sc->sc_dev, 960 "acpiapmbus", NULL, NULL); 961 } 962 963 static void 964 acpi_rescan_nodes(struct acpi_softc *sc) 965 { 966 struct acpi_attach_args aa; 967 struct acpi_devnode *ad; 968 969 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 970 971 if (ad->ad_device != NULL) 972 continue; 973 974 aa.aa_node = ad; 975 aa.aa_iot = sc->sc_iot; 976 aa.aa_memt = sc->sc_memt; 977 aa.aa_pc = sc->sc_pc; 978 aa.aa_pciflags = sc->sc_pciflags; 979 aa.aa_ic = sc->sc_ic; 980 981 /* 982 * XXX: We only attach devices which are present, enabled, and 983 * functioning properly. However, if a device is enabled, 984 * it is decoding resources and we should claim these, 985 * if possible. This requires changes to bus_space(9). 986 */ 987 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 988 989 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 990 ACPI_VALID_STA && 991 (ad->ad_devinfo->CurrentStatus & 992 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 993 ACPI_STA_DEV_OK)) != 994 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 995 ACPI_STA_DEV_OK)) 996 continue; 997 } 998 999 /* 1000 * XXX: The same problem as above. As for example 1001 * thermal zones and power resources do not 1002 * have a valid HID, only evaluate devices. 1003 */ 1004 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 1005 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 1006 continue; 1007 1008 /* 1009 * Handled internally. 1010 */ 1011 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 1012 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 1013 continue; 1014 1015 /* 1016 * Skip ignored HIDs. 1017 */ 1018 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 1019 continue; 1020 1021 ad->ad_device = config_found_ia(sc->sc_dev, 1022 "acpinodebus", &aa, acpi_print); 1023 } 1024 } 1025 1026 #define ACPI_STA_DEV_VALID \ 1027 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 1028 1029 static void 1030 acpi_rescan_capabilities(struct acpi_softc *sc) 1031 { 1032 struct acpi_devnode *ad; 1033 ACPI_DEVICE_INFO *di; 1034 ACPI_HANDLE tmp; 1035 ACPI_STATUS rv; 1036 1037 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1038 1039 di = ad->ad_devinfo; 1040 1041 if (di->Type != ACPI_TYPE_DEVICE) 1042 continue; 1043 1044 if ((di->Valid & ACPI_VALID_STA) != 0 && 1045 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 1046 ACPI_STA_DEV_VALID) 1047 continue; 1048 1049 /* 1050 * Scan power resource capabilities. 1051 */ 1052 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1053 1054 if (ACPI_FAILURE(rv)) 1055 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 1056 1057 if (ACPI_SUCCESS(rv)) 1058 ad->ad_flags |= ACPI_DEVICE_POWER; 1059 1060 /* 1061 * Scan wake-up capabilities. 1062 */ 1063 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1064 1065 if (ACPI_SUCCESS(rv)) { 1066 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1067 acpi_wakedev_add(ad); 1068 } 1069 1070 if (ad->ad_flags != 0) { 1071 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 1072 1073 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 1074 aprint_debug("power "); 1075 1076 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 1077 aprint_debug("wake-up "); 1078 1079 aprint_debug("\n"); 1080 } 1081 } 1082 } 1083 1084 #undef ACPI_STA_DEV_VALID 1085 1086 static int 1087 acpi_print(void *aux, const char *pnp) 1088 { 1089 struct acpi_attach_args *aa = aux; 1090 ACPI_STATUS rv; 1091 1092 if (pnp) { 1093 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1094 char *pnpstr = 1095 aa->aa_node->ad_devinfo->HardwareId.String; 1096 ACPI_BUFFER buf; 1097 1098 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1099 pnpstr); 1100 1101 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1102 "_STR", &buf); 1103 if (ACPI_SUCCESS(rv)) { 1104 ACPI_OBJECT *obj = buf.Pointer; 1105 switch (obj->Type) { 1106 case ACPI_TYPE_STRING: 1107 aprint_normal("[%s] ", obj->String.Pointer); 1108 break; 1109 case ACPI_TYPE_BUFFER: 1110 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1111 break; 1112 default: 1113 aprint_normal("type %u ",obj->Type); 1114 break; 1115 } 1116 ACPI_FREE(buf.Pointer); 1117 } 1118 #ifdef ACPIVERBOSE 1119 else { 1120 int i; 1121 1122 for (i = 0; i < __arraycount(acpi_knowndevs); 1123 i++) { 1124 if (strcmp(acpi_knowndevs[i].pnp, 1125 pnpstr) == 0) { 1126 aprint_normal("[%s] ", 1127 acpi_knowndevs[i].str); 1128 } 1129 } 1130 } 1131 1132 #endif 1133 aprint_normal("at %s", pnp); 1134 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1135 aprint_normal("%s (ACPI Object Type '%s' " 1136 "[0x%02x]) ", aa->aa_node->ad_name, 1137 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1138 aa->aa_node->ad_devinfo->Type); 1139 aprint_normal("at %s", pnp); 1140 } else 1141 return 0; 1142 } else { 1143 aprint_normal(" (%s", aa->aa_node->ad_name); 1144 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1145 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1146 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1147 const char *uid; 1148 1149 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1150 if (uid[0] == '\0') 1151 uid = "<null>"; 1152 aprint_normal("-%s", uid); 1153 } 1154 } 1155 aprint_normal(")"); 1156 } 1157 1158 return UNCONF; 1159 } 1160 1161 /* 1162 * Notify. 1163 */ 1164 static void 1165 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1166 { 1167 struct acpi_softc *sc = acpi_softc; 1168 struct acpi_devnode *ad; 1169 1170 KASSERT(sc != NULL); 1171 KASSERT(aux == NULL); 1172 KASSERT(acpi_active != 0); 1173 1174 if (acpi_suspended != 0) 1175 return; 1176 1177 /* 1178 * System: 0x00 - 0x7F. 1179 * Device: 0x80 - 0xFF. 1180 */ 1181 switch (event) { 1182 1183 case ACPI_NOTIFY_BUS_CHECK: 1184 case ACPI_NOTIFY_DEVICE_CHECK: 1185 case ACPI_NOTIFY_DEVICE_WAKE: 1186 case ACPI_NOTIFY_EJECT_REQUEST: 1187 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1188 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1189 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1190 case ACPI_NOTIFY_POWER_FAULT: 1191 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1192 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1193 case ACPI_NOTIFY_RESERVED: 1194 case ACPI_NOTIFY_LOCALITY_UPDATE: 1195 break; 1196 } 1197 1198 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1199 "%s (%p)\n", event, acpi_name(handle), handle)); 1200 1201 /* 1202 * We deliver notifications only to drivers 1203 * that have been succesfully attached and 1204 * that have registered a handler with us. 1205 * The opaque pointer is always the device_t. 1206 */ 1207 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1208 1209 if (ad->ad_device == NULL) 1210 continue; 1211 1212 if (ad->ad_notify == NULL) 1213 continue; 1214 1215 if (ad->ad_handle != handle) 1216 continue; 1217 1218 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1219 1220 return; 1221 } 1222 1223 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1224 "for %s (%p)\n", event, acpi_name(handle), handle); 1225 } 1226 1227 bool 1228 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1229 { 1230 struct acpi_softc *sc = acpi_softc; 1231 1232 KASSERT(sc != NULL); 1233 KASSERT(acpi_active != 0); 1234 1235 if (acpi_suspended != 0) 1236 goto fail; 1237 1238 if (ad == NULL || notify == NULL) 1239 goto fail; 1240 1241 ad->ad_notify = notify; 1242 1243 return true; 1244 1245 fail: 1246 aprint_error_dev(sc->sc_dev, "failed to register notify " 1247 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1248 1249 return false; 1250 } 1251 1252 void 1253 acpi_deregister_notify(struct acpi_devnode *ad) 1254 { 1255 1256 ad->ad_notify = NULL; 1257 } 1258 1259 /* 1260 * Fixed buttons. 1261 */ 1262 static void 1263 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1264 { 1265 struct sysmon_pswitch *smpsw; 1266 ACPI_STATUS rv; 1267 int type; 1268 1269 switch (event) { 1270 1271 case ACPI_EVENT_POWER_BUTTON: 1272 1273 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1274 return; 1275 1276 type = PSWITCH_TYPE_POWER; 1277 smpsw = &sc->sc_smpsw_power; 1278 break; 1279 1280 case ACPI_EVENT_SLEEP_BUTTON: 1281 1282 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1283 return; 1284 1285 type = PSWITCH_TYPE_SLEEP; 1286 smpsw = &sc->sc_smpsw_sleep; 1287 break; 1288 1289 default: 1290 rv = AE_TYPE; 1291 goto fail; 1292 } 1293 1294 smpsw->smpsw_type = type; 1295 smpsw->smpsw_name = device_xname(sc->sc_dev); 1296 1297 if (sysmon_pswitch_register(smpsw) != 0) { 1298 rv = AE_ERROR; 1299 goto fail; 1300 } 1301 1302 rv = AcpiInstallFixedEventHandler(event, 1303 acpi_fixed_button_handler, smpsw); 1304 1305 if (ACPI_FAILURE(rv)) 1306 goto fail; 1307 1308 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1309 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1310 1311 return; 1312 1313 fail: 1314 aprint_error_dev(sc->sc_dev, "failed to register " 1315 "fixed event: %s\n", AcpiFormatException(rv)); 1316 } 1317 1318 static void 1319 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1320 { 1321 struct sysmon_pswitch *smpsw; 1322 ACPI_STATUS rv; 1323 1324 switch (event) { 1325 1326 case ACPI_EVENT_POWER_BUTTON: 1327 smpsw = &sc->sc_smpsw_power; 1328 1329 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1330 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1331 return; 1332 } 1333 1334 break; 1335 1336 case ACPI_EVENT_SLEEP_BUTTON: 1337 smpsw = &sc->sc_smpsw_sleep; 1338 1339 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1340 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1341 return; 1342 } 1343 1344 break; 1345 1346 default: 1347 rv = AE_TYPE; 1348 goto fail; 1349 } 1350 1351 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1352 1353 if (ACPI_SUCCESS(rv)) { 1354 sysmon_pswitch_unregister(smpsw); 1355 return; 1356 } 1357 1358 fail: 1359 aprint_error_dev(sc->sc_dev, "failed to deregister " 1360 "fixed event: %s\n", AcpiFormatException(rv)); 1361 } 1362 1363 static uint32_t 1364 acpi_fixed_button_handler(void *context) 1365 { 1366 static const int handler = OSL_NOTIFY_HANDLER; 1367 struct sysmon_pswitch *smpsw = context; 1368 1369 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1370 1371 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1372 1373 return ACPI_INTERRUPT_HANDLED; 1374 } 1375 1376 static void 1377 acpi_fixed_button_pressed(void *context) 1378 { 1379 struct sysmon_pswitch *smpsw = context; 1380 1381 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1382 __func__, smpsw->smpsw_name)); 1383 1384 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1385 } 1386 1387 /* 1388 * Sleep. 1389 */ 1390 static void 1391 acpi_sleep_init(struct acpi_softc *sc) 1392 { 1393 uint8_t a, b, i; 1394 ACPI_STATUS rv; 1395 1396 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1397 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1398 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1399 1400 /* 1401 * Evaluate supported sleep states. 1402 */ 1403 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1404 1405 rv = AcpiGetSleepTypeData(i, &a, &b); 1406 1407 if (ACPI_SUCCESS(rv)) 1408 sc->sc_sleepstates |= __BIT(i); 1409 } 1410 } 1411 1412 ACPI_STATUS 1413 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1414 { 1415 ACPI_STATUS rv = AE_OK; 1416 int err; 1417 1418 if (state == sc->sc_sleepstate) 1419 return AE_OK; 1420 1421 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1422 1423 switch (state) { 1424 1425 case ACPI_STATE_S0: 1426 break; 1427 1428 case ACPI_STATE_S1: 1429 case ACPI_STATE_S2: 1430 case ACPI_STATE_S3: 1431 case ACPI_STATE_S4: 1432 1433 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1434 aprint_error_dev(sc->sc_dev, "sleep state " 1435 "S%d is not available\n", state); 1436 break; 1437 } 1438 1439 acpi_wakedev_commit(sc, state); 1440 1441 if (state != ACPI_STATE_S1 && 1442 pmf_system_suspend(PMF_Q_NONE) != true) { 1443 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1444 break; 1445 } 1446 1447 rv = AcpiEnterSleepStatePrep(state); 1448 1449 if (ACPI_FAILURE(rv)) { 1450 aprint_error_dev(sc->sc_dev, "failed to prepare " 1451 "S%d: %s\n", state, AcpiFormatException(rv)); 1452 break; 1453 } 1454 1455 sc->sc_sleepstate = state; 1456 1457 if (state == ACPI_STATE_S1) { 1458 1459 /* Just enter the state. */ 1460 acpi_md_OsDisableInterrupt(); 1461 rv = AcpiEnterSleepState(state); 1462 1463 if (ACPI_FAILURE(rv)) 1464 aprint_error_dev(sc->sc_dev, "failed to " 1465 "enter S1: %s\n", AcpiFormatException(rv)); 1466 1467 (void)AcpiLeaveSleepState(state); 1468 1469 } else { 1470 1471 err = acpi_md_sleep(state); 1472 1473 if (state == ACPI_STATE_S4) 1474 AcpiEnable(); 1475 1476 pmf_system_bus_resume(PMF_Q_NONE); 1477 (void)AcpiLeaveSleepState(state); 1478 pmf_system_resume(PMF_Q_NONE); 1479 } 1480 1481 break; 1482 case ACPI_STATE_S5: 1483 1484 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1485 1486 if (ACPI_FAILURE(rv)) { 1487 aprint_error_dev(sc->sc_dev, "failed to prepare " 1488 "S%d: %s\n", state, AcpiFormatException(rv)); 1489 break; 1490 } 1491 1492 DELAY(1000000); 1493 1494 sc->sc_sleepstate = state; 1495 acpi_md_OsDisableInterrupt(); 1496 1497 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1498 1499 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1500 break; 1501 } 1502 1503 sc->sc_sleepstate = ACPI_STATE_S0; 1504 1505 return rv; 1506 } 1507 1508 /* 1509 * Sysctl. 1510 */ 1511 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1512 { 1513 const struct sysctlnode *mnode, *rnode; 1514 int err; 1515 1516 err = sysctl_createv(clog, 0, NULL, &rnode, 1517 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1518 NULL, NULL, 0, NULL, 0, 1519 CTL_HW, CTL_EOL); 1520 1521 if (err != 0) 1522 return; 1523 1524 err = sysctl_createv(clog, 0, &rnode, &rnode, 1525 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1526 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1527 NULL, 0, NULL, 0, 1528 CTL_CREATE, CTL_EOL); 1529 1530 if (err != 0) 1531 return; 1532 1533 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1534 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1535 "root", SYSCTL_DESCR("ACPI root pointer"), 1536 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1537 CTL_CREATE, CTL_EOL); 1538 1539 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1540 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1541 "supported_states", SYSCTL_DESCR("Supported system states"), 1542 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1543 CTL_CREATE, CTL_EOL); 1544 1545 err = sysctl_createv(NULL, 0, NULL, &mnode, 1546 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1547 NULL, NULL, 0, NULL, 0, 1548 CTL_MACHDEP, CTL_EOL); 1549 1550 if (err == 0) { 1551 1552 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1553 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1554 "sleep_state", SYSCTL_DESCR("System sleep state"), 1555 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1556 CTL_CREATE, CTL_EOL); 1557 } 1558 1559 err = sysctl_createv(clog, 0, &rnode, &rnode, 1560 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1561 "stat", SYSCTL_DESCR("ACPI statistics"), 1562 NULL, 0, NULL, 0, 1563 CTL_CREATE, CTL_EOL); 1564 1565 if (err != 0) 1566 return; 1567 1568 (void)sysctl_createv(clog, 0, &rnode, NULL, 1569 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1570 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1571 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1572 CTL_CREATE, CTL_EOL); 1573 1574 (void)sysctl_createv(clog, 0, &rnode, NULL, 1575 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1576 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1577 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1578 CTL_CREATE, CTL_EOL); 1579 1580 (void)sysctl_createv(clog, 0, &rnode, NULL, 1581 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1582 "fixed", SYSCTL_DESCR("Number of fixed events"), 1583 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1584 CTL_CREATE, CTL_EOL); 1585 1586 (void)sysctl_createv(clog, 0, &rnode, NULL, 1587 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1588 "method", SYSCTL_DESCR("Number of methods executed"), 1589 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1590 CTL_CREATE, CTL_EOL); 1591 1592 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1593 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1594 } 1595 1596 static int 1597 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1598 { 1599 struct sysctlnode node; 1600 uint64_t t; 1601 int err, i; 1602 1603 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1604 t += AcpiFixedEventCount[i]; 1605 1606 node = *rnode; 1607 node.sysctl_data = &t; 1608 1609 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1610 1611 if (err || newp == NULL) 1612 return err; 1613 1614 return 0; 1615 } 1616 1617 static int 1618 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1619 { 1620 struct acpi_softc *sc = acpi_softc; 1621 struct sysctlnode node; 1622 int err, t; 1623 1624 if (acpi_softc == NULL) 1625 return ENOSYS; 1626 1627 node = *rnode; 1628 t = sc->sc_sleepstate; 1629 node.sysctl_data = &t; 1630 1631 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1632 1633 if (err || newp == NULL) 1634 return err; 1635 1636 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1637 return EINVAL; 1638 1639 acpi_enter_sleep_state(sc, t); 1640 1641 return 0; 1642 } 1643 1644 static int 1645 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1646 { 1647 struct acpi_softc *sc = acpi_softc; 1648 struct sysctlnode node; 1649 char t[3 * 6 + 1]; 1650 int err; 1651 1652 if (acpi_softc == NULL) 1653 return ENOSYS; 1654 1655 (void)memset(t, '\0', sizeof(t)); 1656 1657 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1658 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1659 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1660 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1661 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1662 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1663 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1664 1665 node = *rnode; 1666 node.sysctl_data = &t; 1667 1668 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1669 1670 if (err || newp == NULL) 1671 return err; 1672 1673 return 0; 1674 } 1675 1676 /* 1677 * Miscellaneous. 1678 */ 1679 ACPI_PHYSICAL_ADDRESS 1680 acpi_OsGetRootPointer(void) 1681 { 1682 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1683 1684 /* 1685 * We let MD code handle this since there are multiple ways to do it: 1686 * 1687 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1688 * 1689 * IA-64: Use the EFI. 1690 */ 1691 PhysicalAddress = acpi_md_OsGetRootPointer(); 1692 1693 if (acpi_root_pointer == 0) 1694 acpi_root_pointer = PhysicalAddress; 1695 1696 return PhysicalAddress; 1697 } 1698 1699 static ACPI_TABLE_HEADER * 1700 acpi_map_rsdt(void) 1701 { 1702 ACPI_PHYSICAL_ADDRESS paddr; 1703 ACPI_TABLE_RSDP *rsdp; 1704 1705 paddr = AcpiOsGetRootPointer(); 1706 1707 if (paddr == 0) 1708 return NULL; 1709 1710 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1711 1712 if (rsdp == NULL) 1713 return NULL; 1714 1715 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1716 paddr = rsdp->XsdtPhysicalAddress; 1717 else 1718 paddr = rsdp->RsdtPhysicalAddress; 1719 1720 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1721 1722 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1723 } 1724 1725 static void 1726 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1727 { 1728 1729 if (rsdt == NULL) 1730 return; 1731 1732 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1733 } 1734
Indexes created Tue Sep 23 07:09:52 GMT 2025