acpi.c revision 1.181
1 /* $NetBSD: acpi.c,v 1.181 2010/04/22 18:40:09 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 1.181 2010/04/22 18:40:09 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_power.h> 86 #include <dev/acpi/acpi_timer.h> 87 #include <dev/acpi/acpi_wakedev.h> 88 89 #ifdef ACPIVERBOSE 90 #include <dev/acpi/acpidevs_data.h> 91 #endif 92 93 #define _COMPONENT ACPI_BUS_COMPONENT 94 ACPI_MODULE_NAME ("acpi") 95 96 #if defined(ACPI_PCI_FIXUP) 97 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 98 #endif 99 100 #ifdef PCI_INTR_FIXUP_DISABLED 101 #include <dev/pci/pcidevs.h> 102 #endif 103 104 MALLOC_DECLARE(M_ACPI); 105 106 #include <machine/acpi_machdep.h> 107 108 #ifdef ACPI_DEBUGGER 109 #define ACPI_DBGR_INIT 0x01 110 #define ACPI_DBGR_TABLES 0x02 111 #define ACPI_DBGR_ENABLE 0x04 112 #define ACPI_DBGR_PROBE 0x08 113 #define ACPI_DBGR_RUNNING 0x10 114 115 static int acpi_dbgr = 0x00; 116 #endif 117 118 /* 119 * This is a flag we set when the ACPI subsystem is active. Machine 120 * dependent code may wish to skip other steps (such as attaching 121 * subsystems that ACPI supercedes) when ACPI is active. 122 */ 123 int acpi_active; 124 int acpi_force_load; 125 int acpi_suspended = 0; 126 127 struct acpi_softc *acpi_softc; 128 static uint64_t acpi_root_pointer; 129 extern kmutex_t acpi_interrupt_list_mtx; 130 131 /* 132 * This structure provides a context for the ACPI 133 * namespace walk performed in acpi_build_tree(). 134 */ 135 struct acpi_walkcontext { 136 struct acpi_softc *aw_sc; 137 struct acpi_devnode *aw_parent; 138 }; 139 140 /* 141 * Ignored HIDs. 142 */ 143 static const char * const acpi_ignored_ids[] = { 144 #if defined(i386) || defined(x86_64) 145 "PNP0000", /* AT interrupt controller is handled internally */ 146 "PNP0200", /* AT DMA controller is handled internally */ 147 "PNP0A??", /* PCI Busses are handled internally */ 148 "PNP0B00", /* AT RTC is handled internally */ 149 "PNP0C01", /* No "System Board" driver */ 150 "PNP0C02", /* No "PnP motherboard register resources" driver */ 151 "PNP0C0B", /* No need for "ACPI fan" driver */ 152 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 153 "IFX0102", /* No driver for Infineon TPM */ 154 "INT0800", /* No driver for Intel Firmware Hub device */ 155 #endif 156 #if defined(x86_64) 157 "PNP0C04", /* FPU is handled internally */ 158 #endif 159 NULL 160 }; 161 162 static int acpi_match(device_t, cfdata_t, void *); 163 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 164 static void acpi_attach(device_t, device_t, void *); 165 static int acpi_detach(device_t, int); 166 static void acpi_childdet(device_t, device_t); 167 static bool acpi_suspend(device_t, const pmf_qual_t *); 168 static bool acpi_resume(device_t, const pmf_qual_t *); 169 170 static void acpi_build_tree(struct acpi_softc *); 171 172 #ifdef ACPI_DEBUG 173 static void acpi_print_tree(struct acpi_devnode *, uint32_t); 174 #endif 175 176 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 177 void *, void **); 178 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 179 void *, void **); 180 181 #ifdef ACPI_ACTIVATE_DEV 182 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 183 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 184 #endif 185 186 static int acpi_rescan(device_t, const char *, const int *); 187 static void acpi_rescan1(struct acpi_softc *, 188 const char *, const int *); 189 static void acpi_rescan_nodes(struct acpi_softc *); 190 static void acpi_rescan_capabilities(struct acpi_softc *); 191 static int acpi_print(void *aux, const char *); 192 193 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 194 195 static void acpi_register_fixed_button(struct acpi_softc *, int); 196 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 197 static uint32_t acpi_fixed_button_handler(void *); 198 static void acpi_fixed_button_pressed(void *); 199 200 static void acpi_sleep_init(struct acpi_softc *); 201 202 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS); 203 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 204 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS); 205 206 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 207 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 208 209 extern struct cfdriver acpi_cd; 210 211 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 212 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 213 214 /* 215 * Probe for ACPI support. 216 * 217 * This is called by the machine-dependent ACPI front-end. 218 * Note: this is not an autoconfiguration interface function. 219 */ 220 int 221 acpi_probe(void) 222 { 223 ACPI_TABLE_HEADER *rsdt; 224 const char *func; 225 static int once; 226 bool initialized; 227 ACPI_STATUS rv; 228 229 if (once != 0) 230 panic("%s: already probed", __func__); 231 232 once = 1; 233 func = NULL; 234 initialized = false; 235 236 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 237 238 /* 239 * Start up ACPICA. 240 */ 241 #ifdef ACPI_DEBUGGER 242 if (acpi_dbgr & ACPI_DBGR_INIT) 243 acpi_osd_debugger(); 244 #endif 245 246 CTASSERT(TRUE == true); 247 CTASSERT(FALSE == false); 248 249 AcpiGbl_AllMethodsSerialized = false; 250 AcpiGbl_EnableInterpreterSlack = true; 251 252 rv = AcpiInitializeSubsystem(); 253 254 if (ACPI_SUCCESS(rv)) 255 initialized = true; 256 else { 257 func = "AcpiInitializeSubsystem()"; 258 goto fail; 259 } 260 261 /* 262 * Allocate space for RSDT/XSDT and DSDT, 263 * but allow resizing if more tables exist. 264 */ 265 rv = AcpiInitializeTables(NULL, 2, true); 266 267 if (ACPI_FAILURE(rv)) { 268 func = "AcpiInitializeTables()"; 269 goto fail; 270 } 271 272 #ifdef ACPI_DEBUGGER 273 if (acpi_dbgr & ACPI_DBGR_TABLES) 274 acpi_osd_debugger(); 275 #endif 276 277 rv = AcpiLoadTables(); 278 279 if (ACPI_FAILURE(rv)) { 280 func = "AcpiLoadTables()"; 281 goto fail; 282 } 283 284 rsdt = acpi_map_rsdt(); 285 286 if (rsdt == NULL) { 287 func = "acpi_map_rsdt()"; 288 rv = AE_ERROR; 289 goto fail; 290 } 291 292 if (acpi_force_load == 0 && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 293 aprint_normal("ACPI: BIOS is listed as broken:\n"); 294 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 295 "AslId <%4.4s,%08x>\n", 296 rsdt->OemId, rsdt->OemTableId, 297 rsdt->OemRevision, 298 rsdt->AslCompilerId, 299 rsdt->AslCompilerRevision); 300 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 301 acpi_unmap_rsdt(rsdt); 302 AcpiTerminate(); 303 return 0; 304 } 305 306 acpi_unmap_rsdt(rsdt); 307 308 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 309 310 if (ACPI_FAILURE(rv)) { 311 func = "AcpiEnableSubsystem()"; 312 goto fail; 313 } 314 315 /* 316 * Looks like we have ACPI! 317 */ 318 return 1; 319 320 fail: 321 KASSERT(rv != AE_OK); 322 KASSERT(func != NULL); 323 324 aprint_error("%s: failed to probe ACPI: %s\n", 325 func, AcpiFormatException(rv)); 326 327 if (initialized != false) 328 (void)AcpiTerminate(); 329 330 return 0; 331 } 332 333 int 334 acpi_check(device_t parent, const char *ifattr) 335 { 336 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 337 } 338 339 /* 340 * Autoconfiguration. 341 */ 342 static int 343 acpi_match(device_t parent, cfdata_t match, void *aux) 344 { 345 /* 346 * XXX: Nada; MD code has called acpi_probe(). 347 */ 348 return 1; 349 } 350 351 static int 352 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 353 { 354 struct cfattach *ca; 355 356 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 357 358 return (ca == &acpi_ca); 359 } 360 361 static void 362 acpi_attach(device_t parent, device_t self, void *aux) 363 { 364 struct acpi_softc *sc = device_private(self); 365 struct acpibus_attach_args *aa = aux; 366 ACPI_TABLE_HEADER *rsdt; 367 ACPI_STATUS rv; 368 369 aprint_naive("\n"); 370 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 371 372 if (acpi_softc != NULL) 373 panic("%s: already attached", __func__); 374 375 rsdt = acpi_map_rsdt(); 376 377 if (rsdt == NULL) 378 aprint_error_dev(self, "X/RSDT: Not found\n"); 379 else { 380 aprint_verbose_dev(self, 381 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 382 rsdt->OemId, rsdt->OemTableId, 383 rsdt->OemRevision, 384 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 385 } 386 387 acpi_unmap_rsdt(rsdt); 388 389 sc->sc_dev = self; 390 sc->sc_root = NULL; 391 392 sc->sc_sleepstate = ACPI_STATE_S0; 393 sc->sc_quirks = acpi_find_quirks(); 394 395 sysmon_power_settype("acpi"); 396 397 sc->sc_iot = aa->aa_iot; 398 sc->sc_memt = aa->aa_memt; 399 sc->sc_pc = aa->aa_pc; 400 sc->sc_pciflags = aa->aa_pciflags; 401 sc->sc_ic = aa->aa_ic; 402 403 SIMPLEQ_INIT(&sc->ad_head); 404 405 acpi_softc = sc; 406 407 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 408 aprint_error_dev(self, "couldn't establish power handler\n"); 409 410 /* 411 * Bring ACPI on-line. 412 */ 413 #ifdef ACPI_DEBUGGER 414 if (acpi_dbgr & ACPI_DBGR_ENABLE) 415 acpi_osd_debugger(); 416 #endif 417 418 #define ACPI_ENABLE_PHASE1 \ 419 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 420 #define ACPI_ENABLE_PHASE2 \ 421 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 422 ACPI_NO_ADDRESS_SPACE_INIT) 423 424 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 425 426 if (ACPI_FAILURE(rv)) 427 goto fail; 428 429 acpi_md_callback(); 430 431 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 432 433 if (ACPI_FAILURE(rv)) 434 goto fail; 435 436 /* 437 * Early EC handler initialization if ECDT table is available. 438 */ 439 config_found_ia(self, "acpiecdtbus", aa, NULL); 440 441 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 442 443 if (ACPI_FAILURE(rv)) 444 goto fail; 445 446 /* 447 * Install global notify handlers. 448 */ 449 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 450 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 451 452 if (ACPI_FAILURE(rv)) 453 goto fail; 454 455 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 456 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 457 458 if (ACPI_FAILURE(rv)) 459 goto fail; 460 461 acpi_active = 1; 462 463 /* Show SCI interrupt. */ 464 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 465 AcpiGbl_FADT.SciInterrupt); 466 467 /* 468 * Install fixed-event handlers. 469 */ 470 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 471 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 472 473 acpitimer_init(); 474 475 #ifdef ACPI_DEBUGGER 476 if (acpi_dbgr & ACPI_DBGR_PROBE) 477 acpi_osd_debugger(); 478 #endif 479 480 /* 481 * Scan the namespace and build our device tree. 482 */ 483 acpi_build_tree(sc); 484 acpi_sleep_init(sc); 485 486 #ifdef ACPI_DEBUGGER 487 if (acpi_dbgr & ACPI_DBGR_RUNNING) 488 acpi_osd_debugger(); 489 #endif 490 491 #ifdef ACPI_DEBUG 492 acpi_debug_init(); 493 #endif 494 495 return; 496 497 fail: 498 KASSERT(rv != AE_OK); 499 500 aprint_error("%s: failed to initialize ACPI: %s\n", 501 __func__, AcpiFormatException(rv)); 502 } 503 504 /* 505 * XXX: This is incomplete. 506 */ 507 static int 508 acpi_detach(device_t self, int flags) 509 { 510 struct acpi_softc *sc = device_private(self); 511 ACPI_STATUS rv; 512 int rc; 513 514 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 515 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 516 517 if (ACPI_FAILURE(rv)) 518 return EBUSY; 519 520 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 521 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 522 523 if (ACPI_FAILURE(rv)) 524 return EBUSY; 525 526 if ((rc = config_detach_children(self, flags)) != 0) 527 return rc; 528 529 if ((rc = acpitimer_detach()) != 0) 530 return rc; 531 532 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 533 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 534 535 pmf_device_deregister(self); 536 537 acpi_softc = NULL; 538 539 return 0; 540 } 541 542 /* 543 * XXX: Need to reclaim any resources? Yes. 544 */ 545 static void 546 acpi_childdet(device_t self, device_t child) 547 { 548 struct acpi_softc *sc = device_private(self); 549 struct acpi_devnode *ad; 550 551 if (sc->sc_apmbus == child) 552 sc->sc_apmbus = NULL; 553 554 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 555 556 if (ad->ad_device == child) 557 ad->ad_device = NULL; 558 } 559 } 560 561 static bool 562 acpi_suspend(device_t dv, const pmf_qual_t *qual) 563 { 564 565 acpi_suspended = 1; 566 567 return true; 568 } 569 570 static bool 571 acpi_resume(device_t dv, const pmf_qual_t *qual) 572 { 573 574 acpi_suspended = 0; 575 576 return true; 577 } 578 579 /* 580 * Namespace scan. 581 */ 582 static void 583 acpi_build_tree(struct acpi_softc *sc) 584 { 585 struct acpi_walkcontext awc; 586 587 awc.aw_sc = sc; 588 awc.aw_parent = NULL; 589 590 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 591 592 KASSERT(sc->sc_root == NULL); 593 KASSERT(awc.aw_parent != NULL); 594 595 sc->sc_root = awc.aw_parent; 596 597 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 598 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 599 600 #ifdef ACPI_DEBUG 601 acpi_print_tree(sc->sc_root, 0); 602 #endif 603 604 acpi_rescan1(sc, NULL, NULL); 605 acpi_rescan_capabilities(sc); 606 607 acpi_pcidev_scan(sc); 608 } 609 610 #ifdef ACPI_DEBUG 611 static void 612 acpi_print_tree(struct acpi_devnode *ad, uint32_t level) 613 { 614 struct acpi_devnode *child; 615 uint32_t i; 616 617 for (i = 0; i < level; i++) 618 aprint_normal(" "); 619 620 aprint_normal("[%02u] %-5s\n", ad->ad_type, ad->ad_name); 621 622 SIMPLEQ_FOREACH(child, &ad->ad_child_head, ad_child_list) 623 acpi_print_tree(child, level + 1); 624 } 625 #endif 626 627 static ACPI_STATUS 628 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 629 void *context, void **status) 630 { 631 struct acpi_walkcontext *awc = context; 632 struct acpi_softc *sc = awc->aw_sc; 633 struct acpi_devnode *ad; 634 ACPI_DEVICE_INFO *devinfo; 635 ACPI_OBJECT_TYPE type; 636 ACPI_NAME_UNION *anu; 637 ACPI_STATUS rv; 638 int clear, i; 639 640 rv = AcpiGetObjectInfo(handle, &devinfo); 641 642 if (ACPI_FAILURE(rv)) 643 return AE_OK; /* Do not terminate the walk. */ 644 645 type = devinfo->Type; 646 647 switch (type) { 648 649 case ACPI_TYPE_DEVICE: 650 651 #ifdef ACPI_ACTIVATE_DEV 652 acpi_activate_device(handle, &devinfo); 653 #endif 654 655 case ACPI_TYPE_PROCESSOR: 656 case ACPI_TYPE_THERMAL: 657 case ACPI_TYPE_POWER: 658 659 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 660 661 if (ad == NULL) 662 return AE_NO_MEMORY; 663 664 ad->ad_device = NULL; 665 ad->ad_notify = NULL; 666 ad->ad_pciinfo = NULL; 667 668 ad->ad_type = type; 669 ad->ad_handle = handle; 670 ad->ad_devinfo = devinfo; 671 672 ad->ad_root = sc->sc_dev; 673 ad->ad_parent = awc->aw_parent; 674 675 anu = (ACPI_NAME_UNION *)&devinfo->Name; 676 ad->ad_name[4] = '\0'; 677 678 for (i = 3, clear = 0; i >= 0; i--) { 679 680 if (clear == 0 && anu->Ascii[i] == '_') 681 ad->ad_name[i] = '\0'; 682 else { 683 ad->ad_name[i] = anu->Ascii[i]; 684 clear = 1; 685 } 686 } 687 688 if (ad->ad_name[0] == '\0') 689 ad->ad_name[0] = '_'; 690 691 SIMPLEQ_INIT(&ad->ad_child_head); 692 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 693 694 if (ad->ad_parent != NULL) { 695 696 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 697 ad, ad_child_list); 698 } 699 700 awc->aw_parent = ad; 701 702 #ifdef ACPIVERBOSE 703 704 if (type != ACPI_TYPE_DEVICE) 705 return AE_OK; 706 707 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 708 709 aprint_normal("HID %-10s ", 710 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 711 devinfo->HardwareId.String: "-"); 712 713 aprint_normal("UID %-4s ", 714 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 715 devinfo->UniqueId.String : "-"); 716 717 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 718 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 719 else 720 aprint_normal("STA %10s ", "-"); 721 722 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 723 aprint_normal("ADR 0x%016" PRIX64"", 724 devinfo->Address); 725 726 aprint_normal("\n"); 727 #endif 728 } 729 730 return AE_OK; 731 } 732 733 static ACPI_STATUS 734 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 735 void *context, void **status) 736 { 737 struct acpi_walkcontext *awc = context; 738 739 KASSERT(awc != NULL); 740 KASSERT(awc->aw_parent != NULL); 741 742 if (handle == awc->aw_parent->ad_handle) 743 awc->aw_parent = awc->aw_parent->ad_parent; 744 745 return AE_OK; 746 } 747 748 #ifdef ACPI_ACTIVATE_DEV 749 750 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 751 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 752 753 static void 754 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 755 { 756 ACPI_DEVICE_INFO *newdi; 757 ACPI_STATUS rv; 758 uint32_t old; 759 760 /* 761 * If the device is valid and present, 762 * but not enabled, try to activate it. 763 */ 764 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 765 return; 766 767 old = (*di)->CurrentStatus; 768 769 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 770 return; 771 772 rv = acpi_allocate_resources(handle); 773 774 if (ACPI_FAILURE(rv)) 775 goto fail; 776 777 rv = AcpiGetObjectInfo(handle, &newdi); 778 779 if (ACPI_FAILURE(rv)) 780 goto fail; 781 782 ACPI_FREE(*di); 783 *di = newdi; 784 785 aprint_verbose_dev(acpi_softc->sc_dev, 786 "%s activated, STA 0x%08X -> STA 0x%08X\n", 787 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 788 789 return; 790 791 fail: 792 aprint_error_dev(acpi_softc->sc_dev, "failed to " 793 "activate %s\n", (*di)->HardwareId.String); 794 } 795 796 /* 797 * XXX: This very incomplete. 798 */ 799 ACPI_STATUS 800 acpi_allocate_resources(ACPI_HANDLE handle) 801 { 802 ACPI_BUFFER bufp, bufc, bufn; 803 ACPI_RESOURCE *resp, *resc, *resn; 804 ACPI_RESOURCE_IRQ *irq; 805 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 806 ACPI_STATUS rv; 807 uint delta; 808 809 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 810 if (ACPI_FAILURE(rv)) 811 goto out; 812 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 813 if (ACPI_FAILURE(rv)) { 814 goto out1; 815 } 816 817 bufn.Length = 1000; 818 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 819 resp = bufp.Pointer; 820 resc = bufc.Pointer; 821 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 822 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 823 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 824 resp = ACPI_NEXT_RESOURCE(resp); 825 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 826 break; 827 /* Found identical Id */ 828 resn->Type = resc->Type; 829 switch (resc->Type) { 830 case ACPI_RESOURCE_TYPE_IRQ: 831 memcpy(&resn->Data, &resp->Data, 832 sizeof(ACPI_RESOURCE_IRQ)); 833 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 834 irq->Interrupts[0] = 835 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 836 Interrupts[irq->InterruptCount-1]; 837 irq->InterruptCount = 1; 838 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 839 break; 840 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 841 memcpy(&resn->Data, &resp->Data, 842 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 843 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 844 #if 0 845 /* 846 * XXX: Not duplicating the interrupt logic above 847 * because its not clear what it accomplishes. 848 */ 849 xirq->Interrupts[0] = 850 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 851 Interrupts[irq->NumberOfInterrupts-1]; 852 xirq->NumberOfInterrupts = 1; 853 #endif 854 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 855 break; 856 case ACPI_RESOURCE_TYPE_IO: 857 memcpy(&resn->Data, &resp->Data, 858 sizeof(ACPI_RESOURCE_IO)); 859 resn->Length = resp->Length; 860 break; 861 default: 862 aprint_error_dev(acpi_softc->sc_dev, 863 "%s: invalid type %u\n", __func__, resc->Type); 864 rv = AE_BAD_DATA; 865 goto out2; 866 } 867 resc = ACPI_NEXT_RESOURCE(resc); 868 resn = ACPI_NEXT_RESOURCE(resn); 869 resp = ACPI_NEXT_RESOURCE(resp); 870 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 871 if (delta >= 872 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 873 bufn.Length *= 2; 874 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 875 M_ACPI, M_WAITOK); 876 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 877 delta); 878 } 879 } 880 881 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 882 aprint_error_dev(acpi_softc->sc_dev, 883 "%s: resc not exhausted\n", __func__); 884 rv = AE_BAD_DATA; 885 goto out3; 886 } 887 888 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 889 rv = AcpiSetCurrentResources(handle, &bufn); 890 891 if (ACPI_FAILURE(rv)) 892 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 893 "resources: %s\n", __func__, AcpiFormatException(rv)); 894 895 out3: 896 free(bufn.Pointer, M_ACPI); 897 out2: 898 ACPI_FREE(bufc.Pointer); 899 out1: 900 ACPI_FREE(bufp.Pointer); 901 out: 902 return rv; 903 } 904 905 #undef ACPI_DEV_VALID 906 #undef ACPI_DEV_STATUS 907 908 #endif /* ACPI_ACTIVATE_DEV */ 909 910 /* 911 * Device attachment. 912 */ 913 static int 914 acpi_rescan(device_t self, const char *ifattr, const int *locators) 915 { 916 struct acpi_softc *sc = device_private(self); 917 918 acpi_rescan1(sc, ifattr, locators); 919 920 return 0; 921 } 922 923 static void 924 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 925 { 926 927 if (ifattr_match(ifattr, "acpinodebus")) 928 acpi_rescan_nodes(sc); 929 930 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 931 sc->sc_apmbus = config_found_ia(sc->sc_dev, 932 "acpiapmbus", NULL, NULL); 933 } 934 935 static void 936 acpi_rescan_nodes(struct acpi_softc *sc) 937 { 938 struct acpi_attach_args aa; 939 struct acpi_devnode *ad; 940 941 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 942 943 if (ad->ad_device != NULL) 944 continue; 945 946 aa.aa_node = ad; 947 aa.aa_iot = sc->sc_iot; 948 aa.aa_memt = sc->sc_memt; 949 aa.aa_pc = sc->sc_pc; 950 aa.aa_pciflags = sc->sc_pciflags; 951 aa.aa_ic = sc->sc_ic; 952 953 /* 954 * XXX: We only attach devices which are present, enabled, and 955 * functioning properly. However, if a device is enabled, 956 * it is decoding resources and we should claim these, 957 * if possible. This requires changes to bus_space(9). 958 */ 959 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 960 961 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 962 ACPI_VALID_STA && 963 (ad->ad_devinfo->CurrentStatus & 964 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 965 ACPI_STA_DEV_OK)) != 966 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 967 ACPI_STA_DEV_OK)) 968 continue; 969 } 970 971 /* 972 * XXX: The same problem as above. As for example 973 * thermal zones and power resources do not 974 * have a valid HID, only evaluate devices. 975 */ 976 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 977 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 978 continue; 979 980 /* 981 * Handled internally. 982 */ 983 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR) 984 continue; 985 986 /* 987 * Ditto, but bind power resources. 988 */ 989 if (ad->ad_devinfo->Type == ACPI_TYPE_POWER) { 990 acpi_power_res_add(ad); 991 continue; 992 } 993 994 /* 995 * Skip ignored HIDs. 996 */ 997 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 998 continue; 999 1000 ad->ad_device = config_found_ia(sc->sc_dev, 1001 "acpinodebus", &aa, acpi_print); 1002 } 1003 } 1004 1005 #define ACPI_STA_DEV_VALID \ 1006 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 1007 1008 static void 1009 acpi_rescan_capabilities(struct acpi_softc *sc) 1010 { 1011 struct acpi_devnode *ad; 1012 ACPI_DEVICE_INFO *di; 1013 ACPI_HANDLE tmp; 1014 ACPI_STATUS rv; 1015 1016 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1017 1018 di = ad->ad_devinfo; 1019 1020 if (di->Type != ACPI_TYPE_DEVICE) 1021 continue; 1022 1023 if ((di->Valid & ACPI_VALID_STA) != 0 && 1024 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 1025 ACPI_STA_DEV_VALID) 1026 continue; 1027 1028 /* 1029 * Scan power resource capabilities. 1030 * 1031 * If any power states are supported, 1032 * at least _PR0 and _PR3 must be present. 1033 */ 1034 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1035 1036 if (ACPI_SUCCESS(rv)) { 1037 ad->ad_flags |= ACPI_DEVICE_POWER; 1038 (void)acpi_power_get(ad, NULL); 1039 } 1040 1041 /* 1042 * Scan wake-up capabilities. 1043 */ 1044 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1045 1046 if (ACPI_SUCCESS(rv)) { 1047 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1048 acpi_wakedev_add(ad); 1049 } 1050 1051 if (ad->ad_flags != 0) { 1052 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 1053 1054 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 1055 aprint_debug("wake-up "); 1056 1057 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 1058 aprint_debug("power (D%d) ", ad->ad_state); 1059 1060 aprint_debug("\n"); 1061 } 1062 } 1063 } 1064 1065 #undef ACPI_STA_DEV_VALID 1066 1067 static int 1068 acpi_print(void *aux, const char *pnp) 1069 { 1070 struct acpi_attach_args *aa = aux; 1071 ACPI_STATUS rv; 1072 1073 if (pnp) { 1074 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1075 char *pnpstr = 1076 aa->aa_node->ad_devinfo->HardwareId.String; 1077 ACPI_BUFFER buf; 1078 1079 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1080 pnpstr); 1081 1082 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1083 "_STR", &buf); 1084 if (ACPI_SUCCESS(rv)) { 1085 ACPI_OBJECT *obj = buf.Pointer; 1086 switch (obj->Type) { 1087 case ACPI_TYPE_STRING: 1088 aprint_normal("[%s] ", obj->String.Pointer); 1089 break; 1090 case ACPI_TYPE_BUFFER: 1091 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1092 break; 1093 default: 1094 aprint_normal("type %u ",obj->Type); 1095 break; 1096 } 1097 ACPI_FREE(buf.Pointer); 1098 } 1099 #ifdef ACPIVERBOSE 1100 else { 1101 int i; 1102 1103 for (i = 0; i < __arraycount(acpi_knowndevs); 1104 i++) { 1105 if (strcmp(acpi_knowndevs[i].pnp, 1106 pnpstr) == 0) { 1107 aprint_normal("[%s] ", 1108 acpi_knowndevs[i].str); 1109 } 1110 } 1111 } 1112 1113 #endif 1114 aprint_normal("at %s", pnp); 1115 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1116 aprint_normal("%s (ACPI Object Type '%s' " 1117 "[0x%02x]) ", aa->aa_node->ad_name, 1118 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1119 aa->aa_node->ad_devinfo->Type); 1120 aprint_normal("at %s", pnp); 1121 } else 1122 return 0; 1123 } else { 1124 aprint_normal(" (%s", aa->aa_node->ad_name); 1125 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1126 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1127 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1128 const char *uid; 1129 1130 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1131 if (uid[0] == '\0') 1132 uid = "<null>"; 1133 aprint_normal("-%s", uid); 1134 } 1135 } 1136 aprint_normal(")"); 1137 } 1138 1139 return UNCONF; 1140 } 1141 1142 /* 1143 * Notify. 1144 */ 1145 static void 1146 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1147 { 1148 struct acpi_softc *sc = acpi_softc; 1149 struct acpi_devnode *ad; 1150 1151 KASSERT(sc != NULL); 1152 KASSERT(aux == NULL); 1153 KASSERT(acpi_active != 0); 1154 1155 if (acpi_suspended != 0) 1156 return; 1157 1158 /* 1159 * System: 0x00 - 0x7F. 1160 * Device: 0x80 - 0xFF. 1161 */ 1162 switch (event) { 1163 1164 case ACPI_NOTIFY_BUS_CHECK: 1165 case ACPI_NOTIFY_DEVICE_CHECK: 1166 case ACPI_NOTIFY_DEVICE_WAKE: 1167 case ACPI_NOTIFY_EJECT_REQUEST: 1168 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1169 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1170 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1171 case ACPI_NOTIFY_POWER_FAULT: 1172 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1173 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1174 case ACPI_NOTIFY_RESERVED: 1175 case ACPI_NOTIFY_LOCALITY_UPDATE: 1176 break; 1177 } 1178 1179 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1180 "%s (%p)\n", event, acpi_name(handle), handle)); 1181 1182 /* 1183 * We deliver notifications only to drivers 1184 * that have been succesfully attached and 1185 * that have registered a handler with us. 1186 * The opaque pointer is always the device_t. 1187 */ 1188 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1189 1190 if (ad->ad_device == NULL) 1191 continue; 1192 1193 if (ad->ad_notify == NULL) 1194 continue; 1195 1196 if (ad->ad_handle != handle) 1197 continue; 1198 1199 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1200 1201 return; 1202 } 1203 1204 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1205 "for %s (%p)\n", event, acpi_name(handle), handle); 1206 } 1207 1208 bool 1209 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1210 { 1211 struct acpi_softc *sc = acpi_softc; 1212 1213 KASSERT(sc != NULL); 1214 KASSERT(acpi_active != 0); 1215 1216 if (acpi_suspended != 0) 1217 goto fail; 1218 1219 if (ad == NULL || notify == NULL) 1220 goto fail; 1221 1222 ad->ad_notify = notify; 1223 1224 return true; 1225 1226 fail: 1227 aprint_error_dev(sc->sc_dev, "failed to register notify " 1228 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1229 1230 return false; 1231 } 1232 1233 void 1234 acpi_deregister_notify(struct acpi_devnode *ad) 1235 { 1236 1237 ad->ad_notify = NULL; 1238 } 1239 1240 /* 1241 * Fixed buttons. 1242 */ 1243 static void 1244 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1245 { 1246 struct sysmon_pswitch *smpsw; 1247 ACPI_STATUS rv; 1248 int type; 1249 1250 switch (event) { 1251 1252 case ACPI_EVENT_POWER_BUTTON: 1253 1254 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1255 return; 1256 1257 type = PSWITCH_TYPE_POWER; 1258 smpsw = &sc->sc_smpsw_power; 1259 break; 1260 1261 case ACPI_EVENT_SLEEP_BUTTON: 1262 1263 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1264 return; 1265 1266 type = PSWITCH_TYPE_SLEEP; 1267 smpsw = &sc->sc_smpsw_sleep; 1268 break; 1269 1270 default: 1271 rv = AE_TYPE; 1272 goto fail; 1273 } 1274 1275 smpsw->smpsw_type = type; 1276 smpsw->smpsw_name = device_xname(sc->sc_dev); 1277 1278 if (sysmon_pswitch_register(smpsw) != 0) { 1279 rv = AE_ERROR; 1280 goto fail; 1281 } 1282 1283 rv = AcpiInstallFixedEventHandler(event, 1284 acpi_fixed_button_handler, smpsw); 1285 1286 if (ACPI_FAILURE(rv)) 1287 goto fail; 1288 1289 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1290 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1291 1292 return; 1293 1294 fail: 1295 aprint_error_dev(sc->sc_dev, "failed to register " 1296 "fixed event: %s\n", AcpiFormatException(rv)); 1297 } 1298 1299 static void 1300 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1301 { 1302 struct sysmon_pswitch *smpsw; 1303 ACPI_STATUS rv; 1304 1305 switch (event) { 1306 1307 case ACPI_EVENT_POWER_BUTTON: 1308 smpsw = &sc->sc_smpsw_power; 1309 1310 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1311 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1312 return; 1313 } 1314 1315 break; 1316 1317 case ACPI_EVENT_SLEEP_BUTTON: 1318 smpsw = &sc->sc_smpsw_sleep; 1319 1320 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1321 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1322 return; 1323 } 1324 1325 break; 1326 1327 default: 1328 rv = AE_TYPE; 1329 goto fail; 1330 } 1331 1332 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1333 1334 if (ACPI_SUCCESS(rv)) { 1335 sysmon_pswitch_unregister(smpsw); 1336 return; 1337 } 1338 1339 fail: 1340 aprint_error_dev(sc->sc_dev, "failed to deregister " 1341 "fixed event: %s\n", AcpiFormatException(rv)); 1342 } 1343 1344 static uint32_t 1345 acpi_fixed_button_handler(void *context) 1346 { 1347 static const int handler = OSL_NOTIFY_HANDLER; 1348 struct sysmon_pswitch *smpsw = context; 1349 1350 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1351 1352 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1353 1354 return ACPI_INTERRUPT_HANDLED; 1355 } 1356 1357 static void 1358 acpi_fixed_button_pressed(void *context) 1359 { 1360 struct sysmon_pswitch *smpsw = context; 1361 1362 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1363 __func__, smpsw->smpsw_name)); 1364 1365 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1366 } 1367 1368 /* 1369 * Sleep. 1370 */ 1371 static void 1372 acpi_sleep_init(struct acpi_softc *sc) 1373 { 1374 uint8_t a, b, i; 1375 ACPI_STATUS rv; 1376 1377 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1378 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1379 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1380 1381 /* 1382 * Evaluate supported sleep states. 1383 */ 1384 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1385 1386 rv = AcpiGetSleepTypeData(i, &a, &b); 1387 1388 if (ACPI_SUCCESS(rv)) 1389 sc->sc_sleepstates |= __BIT(i); 1390 } 1391 } 1392 1393 ACPI_STATUS 1394 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1395 { 1396 ACPI_STATUS rv = AE_OK; 1397 int err; 1398 1399 if (state == sc->sc_sleepstate) 1400 return AE_OK; 1401 1402 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1403 1404 switch (state) { 1405 1406 case ACPI_STATE_S0: 1407 break; 1408 1409 case ACPI_STATE_S1: 1410 case ACPI_STATE_S2: 1411 case ACPI_STATE_S3: 1412 case ACPI_STATE_S4: 1413 1414 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1415 aprint_error_dev(sc->sc_dev, "sleep state " 1416 "S%d is not available\n", state); 1417 break; 1418 } 1419 1420 acpi_wakedev_commit(sc, state); 1421 1422 if (state != ACPI_STATE_S1 && 1423 pmf_system_suspend(PMF_Q_NONE) != true) { 1424 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1425 break; 1426 } 1427 1428 rv = AcpiEnterSleepStatePrep(state); 1429 1430 if (ACPI_FAILURE(rv)) { 1431 aprint_error_dev(sc->sc_dev, "failed to prepare " 1432 "S%d: %s\n", state, AcpiFormatException(rv)); 1433 break; 1434 } 1435 1436 sc->sc_sleepstate = state; 1437 1438 if (state == ACPI_STATE_S1) { 1439 1440 /* Just enter the state. */ 1441 acpi_md_OsDisableInterrupt(); 1442 rv = AcpiEnterSleepState(state); 1443 1444 if (ACPI_FAILURE(rv)) 1445 aprint_error_dev(sc->sc_dev, "failed to " 1446 "enter S1: %s\n", AcpiFormatException(rv)); 1447 1448 (void)AcpiLeaveSleepState(state); 1449 1450 } else { 1451 1452 err = acpi_md_sleep(state); 1453 1454 if (state == ACPI_STATE_S4) 1455 AcpiEnable(); 1456 1457 pmf_system_bus_resume(PMF_Q_NONE); 1458 (void)AcpiLeaveSleepState(state); 1459 pmf_system_resume(PMF_Q_NONE); 1460 } 1461 1462 break; 1463 case ACPI_STATE_S5: 1464 1465 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1466 1467 if (ACPI_FAILURE(rv)) { 1468 aprint_error_dev(sc->sc_dev, "failed to prepare " 1469 "S%d: %s\n", state, AcpiFormatException(rv)); 1470 break; 1471 } 1472 1473 DELAY(1000000); 1474 1475 sc->sc_sleepstate = state; 1476 acpi_md_OsDisableInterrupt(); 1477 1478 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1479 1480 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1481 break; 1482 } 1483 1484 sc->sc_sleepstate = ACPI_STATE_S0; 1485 1486 return rv; 1487 } 1488 1489 /* 1490 * Sysctl. 1491 */ 1492 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1493 { 1494 const struct sysctlnode *mnode, *rnode; 1495 int err; 1496 1497 err = sysctl_createv(clog, 0, NULL, &rnode, 1498 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1499 NULL, NULL, 0, NULL, 0, 1500 CTL_HW, CTL_EOL); 1501 1502 if (err != 0) 1503 return; 1504 1505 err = sysctl_createv(clog, 0, &rnode, &rnode, 1506 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1507 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1508 NULL, 0, NULL, 0, 1509 CTL_CREATE, CTL_EOL); 1510 1511 if (err != 0) 1512 return; 1513 1514 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1515 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1516 "root", SYSCTL_DESCR("ACPI root pointer"), 1517 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1518 CTL_CREATE, CTL_EOL); 1519 1520 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1521 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1522 "supported_states", SYSCTL_DESCR("Supported system states"), 1523 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1524 CTL_CREATE, CTL_EOL); 1525 1526 err = sysctl_createv(NULL, 0, NULL, &mnode, 1527 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1528 NULL, NULL, 0, NULL, 0, 1529 CTL_MACHDEP, CTL_EOL); 1530 1531 if (err == 0) { 1532 1533 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1534 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1535 "sleep_state", SYSCTL_DESCR("System sleep state"), 1536 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1537 CTL_CREATE, CTL_EOL); 1538 } 1539 1540 err = sysctl_createv(clog, 0, &rnode, &rnode, 1541 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1542 "stat", SYSCTL_DESCR("ACPI statistics"), 1543 NULL, 0, NULL, 0, 1544 CTL_CREATE, CTL_EOL); 1545 1546 if (err != 0) 1547 return; 1548 1549 (void)sysctl_createv(clog, 0, &rnode, NULL, 1550 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1551 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1552 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1553 CTL_CREATE, CTL_EOL); 1554 1555 (void)sysctl_createv(clog, 0, &rnode, NULL, 1556 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1557 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1558 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1559 CTL_CREATE, CTL_EOL); 1560 1561 (void)sysctl_createv(clog, 0, &rnode, NULL, 1562 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1563 "fixed", SYSCTL_DESCR("Number of fixed events"), 1564 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1565 CTL_CREATE, CTL_EOL); 1566 1567 (void)sysctl_createv(clog, 0, &rnode, NULL, 1568 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1569 "method", SYSCTL_DESCR("Number of methods executed"), 1570 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1571 CTL_CREATE, CTL_EOL); 1572 1573 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1574 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1575 } 1576 1577 static int 1578 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1579 { 1580 struct sysctlnode node; 1581 uint64_t t; 1582 int err, i; 1583 1584 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1585 t += AcpiFixedEventCount[i]; 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 static int 1599 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1600 { 1601 struct acpi_softc *sc = acpi_softc; 1602 struct sysctlnode node; 1603 int err, t; 1604 1605 if (acpi_softc == NULL) 1606 return ENOSYS; 1607 1608 node = *rnode; 1609 t = sc->sc_sleepstate; 1610 node.sysctl_data = &t; 1611 1612 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1613 1614 if (err || newp == NULL) 1615 return err; 1616 1617 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1618 return EINVAL; 1619 1620 acpi_enter_sleep_state(sc, t); 1621 1622 return 0; 1623 } 1624 1625 static int 1626 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1627 { 1628 struct acpi_softc *sc = acpi_softc; 1629 struct sysctlnode node; 1630 char t[3 * 6 + 1]; 1631 int err; 1632 1633 if (acpi_softc == NULL) 1634 return ENOSYS; 1635 1636 (void)memset(t, '\0', sizeof(t)); 1637 1638 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1639 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1640 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1641 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1642 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1643 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1644 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1645 1646 node = *rnode; 1647 node.sysctl_data = &t; 1648 1649 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1650 1651 if (err || newp == NULL) 1652 return err; 1653 1654 return 0; 1655 } 1656 1657 /* 1658 * Miscellaneous. 1659 */ 1660 ACPI_PHYSICAL_ADDRESS 1661 acpi_OsGetRootPointer(void) 1662 { 1663 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1664 1665 /* 1666 * We let MD code handle this since there are multiple ways to do it: 1667 * 1668 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1669 * 1670 * IA-64: Use the EFI. 1671 */ 1672 PhysicalAddress = acpi_md_OsGetRootPointer(); 1673 1674 if (acpi_root_pointer == 0) 1675 acpi_root_pointer = PhysicalAddress; 1676 1677 return PhysicalAddress; 1678 } 1679 1680 static ACPI_TABLE_HEADER * 1681 acpi_map_rsdt(void) 1682 { 1683 ACPI_PHYSICAL_ADDRESS paddr; 1684 ACPI_TABLE_RSDP *rsdp; 1685 1686 paddr = AcpiOsGetRootPointer(); 1687 1688 if (paddr == 0) 1689 return NULL; 1690 1691 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1692 1693 if (rsdp == NULL) 1694 return NULL; 1695 1696 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1697 paddr = rsdp->XsdtPhysicalAddress; 1698 else 1699 paddr = rsdp->RsdtPhysicalAddress; 1700 1701 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1702 1703 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1704 } 1705 1706 static void 1707 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1708 { 1709 1710 if (rsdt == NULL) 1711 return; 1712 1713 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1714 } 1715
Indexes created Tue Sep 23 07:09:52 GMT 2025