acpi.c revision 1.180
1 /* $NetBSD: acpi.c,v 1.180 2010/04/22 14:50:30 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 1.180 2010/04/22 14:50:30 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 /* 118 * This is a flag we set when the ACPI subsystem is active. Machine 119 * dependent code may wish to skip other steps (such as attaching 120 * subsystems that ACPI supercedes) when ACPI is active. 121 */ 122 int acpi_active; 123 int acpi_force_load; 124 int acpi_suspended = 0; 125 126 struct acpi_softc *acpi_softc; 127 static uint64_t acpi_root_pointer; 128 extern kmutex_t acpi_interrupt_list_mtx; 129 130 /* 131 * This structure provides a context for the ACPI 132 * namespace walk performed in acpi_build_tree(). 133 */ 134 struct acpi_walkcontext { 135 struct acpi_softc *aw_sc; 136 struct acpi_devnode *aw_parent; 137 }; 138 139 /* 140 * Ignored HIDs. 141 */ 142 static const char * const acpi_ignored_ids[] = { 143 #if defined(i386) || defined(x86_64) 144 "PNP0000", /* AT interrupt controller is handled internally */ 145 "PNP0200", /* AT DMA controller is handled internally */ 146 "PNP0A??", /* PCI Busses are handled internally */ 147 "PNP0B00", /* AT RTC is handled internally */ 148 "PNP0C01", /* No "System Board" driver */ 149 "PNP0C02", /* No "PnP motherboard register resources" driver */ 150 "PNP0C0B", /* No need for "ACPI fan" driver */ 151 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 152 "IFX0102", /* No driver for Infineon TPM */ 153 "INT0800", /* No driver for Intel Firmware Hub device */ 154 #endif 155 #if defined(x86_64) 156 "PNP0C04", /* FPU is handled internally */ 157 #endif 158 NULL 159 }; 160 161 static int acpi_match(device_t, cfdata_t, void *); 162 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 163 static void acpi_attach(device_t, device_t, void *); 164 static int acpi_detach(device_t, int); 165 static void acpi_childdet(device_t, device_t); 166 static bool acpi_suspend(device_t, const pmf_qual_t *); 167 static bool acpi_resume(device_t, const pmf_qual_t *); 168 169 static void acpi_build_tree(struct acpi_softc *); 170 171 #ifdef ACPI_DEBUG 172 static void acpi_print_tree(struct acpi_devnode *, uint32_t); 173 #endif 174 175 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 176 void *, void **); 177 static ACPI_STATUS acpi_make_devnode_post(ACPI_HANDLE, uint32_t, 178 void *, void **); 179 180 #ifdef ACPI_ACTIVATE_DEV 181 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 182 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 183 #endif 184 185 static int acpi_rescan(device_t, const char *, const int *); 186 static void acpi_rescan1(struct acpi_softc *, 187 const char *, const int *); 188 static void acpi_rescan_nodes(struct acpi_softc *); 189 static void acpi_rescan_capabilities(struct acpi_softc *); 190 static int acpi_print(void *aux, const char *); 191 192 static void acpi_notify_handler(ACPI_HANDLE, uint32_t, void *); 193 194 static void acpi_register_fixed_button(struct acpi_softc *, int); 195 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 196 static uint32_t acpi_fixed_button_handler(void *); 197 static void acpi_fixed_button_pressed(void *); 198 199 static void acpi_sleep_init(struct acpi_softc *); 200 201 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS); 202 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 203 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS); 204 205 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 206 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 207 208 extern struct cfdriver acpi_cd; 209 210 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 211 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 212 213 /* 214 * Probe for ACPI support. 215 * 216 * This is called by the machine-dependent ACPI front-end. 217 * Note: this is not an autoconfiguration interface function. 218 */ 219 int 220 acpi_probe(void) 221 { 222 ACPI_TABLE_HEADER *rsdt; 223 const char *func; 224 static int once; 225 bool initialized; 226 ACPI_STATUS rv; 227 228 if (once != 0) 229 panic("%s: already probed", __func__); 230 231 once = 1; 232 func = NULL; 233 initialized = false; 234 235 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 236 237 /* 238 * Start up ACPICA. 239 */ 240 #ifdef ACPI_DEBUGGER 241 if (acpi_dbgr & ACPI_DBGR_INIT) 242 acpi_osd_debugger(); 243 #endif 244 245 CTASSERT(TRUE == true); 246 CTASSERT(FALSE == false); 247 248 AcpiGbl_AllMethodsSerialized = false; 249 AcpiGbl_EnableInterpreterSlack = true; 250 251 rv = AcpiInitializeSubsystem(); 252 253 if (ACPI_SUCCESS(rv)) 254 initialized = true; 255 else { 256 func = "AcpiInitializeSubsystem()"; 257 goto fail; 258 } 259 260 /* 261 * Allocate space for RSDT/XSDT and DSDT, 262 * but allow resizing if more tables exist. 263 */ 264 rv = AcpiInitializeTables(NULL, 2, true); 265 266 if (ACPI_FAILURE(rv)) { 267 func = "AcpiInitializeTables()"; 268 goto fail; 269 } 270 271 #ifdef ACPI_DEBUGGER 272 if (acpi_dbgr & ACPI_DBGR_TABLES) 273 acpi_osd_debugger(); 274 #endif 275 276 rv = AcpiLoadTables(); 277 278 if (ACPI_FAILURE(rv)) { 279 func = "AcpiLoadTables()"; 280 goto fail; 281 } 282 283 rsdt = acpi_map_rsdt(); 284 285 if (rsdt == NULL) { 286 func = "acpi_map_rsdt()"; 287 rv = AE_ERROR; 288 goto fail; 289 } 290 291 if (acpi_force_load == 0 && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 292 aprint_normal("ACPI: BIOS is listed as broken:\n"); 293 aprint_normal("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 294 "AslId <%4.4s,%08x>\n", 295 rsdt->OemId, rsdt->OemTableId, 296 rsdt->OemRevision, 297 rsdt->AslCompilerId, 298 rsdt->AslCompilerRevision); 299 aprint_normal("ACPI: Not used. Set acpi_force_load to use.\n"); 300 acpi_unmap_rsdt(rsdt); 301 AcpiTerminate(); 302 return 0; 303 } 304 305 acpi_unmap_rsdt(rsdt); 306 307 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 308 309 if (ACPI_FAILURE(rv)) { 310 func = "AcpiEnableSubsystem()"; 311 goto fail; 312 } 313 314 /* 315 * Looks like we have ACPI! 316 */ 317 return 1; 318 319 fail: 320 KASSERT(rv != AE_OK); 321 KASSERT(func != NULL); 322 323 aprint_error("%s: failed to probe ACPI: %s\n", 324 func, AcpiFormatException(rv)); 325 326 if (initialized != false) 327 (void)AcpiTerminate(); 328 329 return 0; 330 } 331 332 int 333 acpi_check(device_t parent, const char *ifattr) 334 { 335 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 336 } 337 338 /* 339 * Autoconfiguration. 340 */ 341 static int 342 acpi_match(device_t parent, cfdata_t match, void *aux) 343 { 344 /* 345 * XXX: Nada; MD code has called acpi_probe(). 346 */ 347 return 1; 348 } 349 350 static int 351 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 352 { 353 struct cfattach *ca; 354 355 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 356 357 return (ca == &acpi_ca); 358 } 359 360 static void 361 acpi_attach(device_t parent, device_t self, void *aux) 362 { 363 struct acpi_softc *sc = device_private(self); 364 struct acpibus_attach_args *aa = aux; 365 ACPI_TABLE_HEADER *rsdt; 366 ACPI_STATUS rv; 367 368 aprint_naive("\n"); 369 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 370 371 if (acpi_softc != NULL) 372 panic("%s: already attached", __func__); 373 374 rsdt = acpi_map_rsdt(); 375 376 if (rsdt == NULL) 377 aprint_error_dev(self, "X/RSDT: Not found\n"); 378 else { 379 aprint_verbose_dev(self, 380 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 381 rsdt->OemId, rsdt->OemTableId, 382 rsdt->OemRevision, 383 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 384 } 385 386 acpi_unmap_rsdt(rsdt); 387 388 sc->sc_dev = self; 389 sc->sc_root = NULL; 390 391 sc->sc_sleepstate = ACPI_STATE_S0; 392 sc->sc_quirks = acpi_find_quirks(); 393 394 sysmon_power_settype("acpi"); 395 396 sc->sc_iot = aa->aa_iot; 397 sc->sc_memt = aa->aa_memt; 398 sc->sc_pc = aa->aa_pc; 399 sc->sc_pciflags = aa->aa_pciflags; 400 sc->sc_ic = aa->aa_ic; 401 402 SIMPLEQ_INIT(&sc->ad_head); 403 404 acpi_softc = sc; 405 406 if (pmf_device_register(self, acpi_suspend, acpi_resume) != true) 407 aprint_error_dev(self, "couldn't establish power handler\n"); 408 409 /* 410 * Bring ACPI on-line. 411 */ 412 #ifdef ACPI_DEBUGGER 413 if (acpi_dbgr & ACPI_DBGR_ENABLE) 414 acpi_osd_debugger(); 415 #endif 416 417 #define ACPI_ENABLE_PHASE1 \ 418 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 419 #define ACPI_ENABLE_PHASE2 \ 420 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 421 ACPI_NO_ADDRESS_SPACE_INIT) 422 423 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 424 425 if (ACPI_FAILURE(rv)) 426 goto fail; 427 428 acpi_md_callback(); 429 430 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 431 432 if (ACPI_FAILURE(rv)) 433 goto fail; 434 435 /* 436 * Early EC handler initialization if ECDT table is available. 437 */ 438 config_found_ia(self, "acpiecdtbus", aa, NULL); 439 440 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 441 442 if (ACPI_FAILURE(rv)) 443 goto fail; 444 445 /* 446 * Install global notify handlers. 447 */ 448 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 449 ACPI_SYSTEM_NOTIFY, acpi_notify_handler, NULL); 450 451 if (ACPI_FAILURE(rv)) 452 goto fail; 453 454 rv = AcpiInstallNotifyHandler(ACPI_ROOT_OBJECT, 455 ACPI_DEVICE_NOTIFY, acpi_notify_handler, NULL); 456 457 if (ACPI_FAILURE(rv)) 458 goto fail; 459 460 acpi_active = 1; 461 462 /* Show SCI interrupt. */ 463 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 464 AcpiGbl_FADT.SciInterrupt); 465 466 /* 467 * Install fixed-event handlers. 468 */ 469 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 470 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 471 472 acpitimer_init(); 473 474 #ifdef ACPI_DEBUGGER 475 if (acpi_dbgr & ACPI_DBGR_PROBE) 476 acpi_osd_debugger(); 477 #endif 478 479 /* 480 * Scan the namespace and build our device tree. 481 */ 482 acpi_build_tree(sc); 483 acpi_sleep_init(sc); 484 485 #ifdef ACPI_DEBUGGER 486 if (acpi_dbgr & ACPI_DBGR_RUNNING) 487 acpi_osd_debugger(); 488 #endif 489 490 #ifdef ACPI_DEBUG 491 acpi_debug_init(); 492 #endif 493 494 return; 495 496 fail: 497 KASSERT(rv != AE_OK); 498 499 aprint_error("%s: failed to initialize ACPI: %s\n", 500 __func__, AcpiFormatException(rv)); 501 } 502 503 /* 504 * XXX: This is incomplete. 505 */ 506 static int 507 acpi_detach(device_t self, int flags) 508 { 509 struct acpi_softc *sc = device_private(self); 510 ACPI_STATUS rv; 511 int rc; 512 513 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 514 ACPI_SYSTEM_NOTIFY, acpi_notify_handler); 515 516 if (ACPI_FAILURE(rv)) 517 return EBUSY; 518 519 rv = AcpiRemoveNotifyHandler(ACPI_ROOT_OBJECT, 520 ACPI_DEVICE_NOTIFY, acpi_notify_handler); 521 522 if (ACPI_FAILURE(rv)) 523 return EBUSY; 524 525 if ((rc = config_detach_children(self, flags)) != 0) 526 return rc; 527 528 if ((rc = acpitimer_detach()) != 0) 529 return rc; 530 531 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 532 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 533 534 pmf_device_deregister(self); 535 536 acpi_softc = NULL; 537 538 return 0; 539 } 540 541 /* 542 * XXX: Need to reclaim any resources? Yes. 543 */ 544 static void 545 acpi_childdet(device_t self, device_t child) 546 { 547 struct acpi_softc *sc = device_private(self); 548 struct acpi_devnode *ad; 549 550 if (sc->sc_apmbus == child) 551 sc->sc_apmbus = NULL; 552 553 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 554 555 if (ad->ad_device == child) 556 ad->ad_device = NULL; 557 } 558 } 559 560 static bool 561 acpi_suspend(device_t dv, const pmf_qual_t *qual) 562 { 563 564 acpi_suspended = 1; 565 566 return true; 567 } 568 569 static bool 570 acpi_resume(device_t dv, const pmf_qual_t *qual) 571 { 572 573 acpi_suspended = 0; 574 575 return true; 576 } 577 578 /* 579 * Namespace scan. 580 */ 581 static void 582 acpi_build_tree(struct acpi_softc *sc) 583 { 584 struct acpi_walkcontext awc; 585 586 awc.aw_sc = sc; 587 awc.aw_parent = NULL; 588 589 (void)acpi_make_devnode(ACPI_ROOT_OBJECT, 0, &awc, NULL); 590 591 KASSERT(sc->sc_root == NULL); 592 KASSERT(awc.aw_parent != NULL); 593 594 sc->sc_root = awc.aw_parent; 595 596 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, UINT32_MAX, 597 acpi_make_devnode, acpi_make_devnode_post, &awc, NULL); 598 599 #ifdef ACPI_DEBUG 600 acpi_print_tree(sc->sc_root, 0); 601 #endif 602 603 acpi_rescan1(sc, NULL, NULL); 604 acpi_rescan_capabilities(sc); 605 606 acpi_pcidev_scan(sc); 607 } 608 609 #ifdef ACPI_DEBUG 610 static void 611 acpi_print_tree(struct acpi_devnode *ad, uint32_t level) 612 { 613 struct acpi_devnode *child; 614 uint32_t i; 615 616 for (i = 0; i < level; i++) 617 aprint_normal(" "); 618 619 aprint_normal("[%02u] %-5s\n", ad->ad_type, ad->ad_name); 620 621 SIMPLEQ_FOREACH(child, &ad->ad_child_head, ad_child_list) 622 acpi_print_tree(child, level + 1); 623 } 624 #endif 625 626 static ACPI_STATUS 627 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 628 void *context, void **status) 629 { 630 struct acpi_walkcontext *awc = context; 631 struct acpi_softc *sc = awc->aw_sc; 632 struct acpi_devnode *ad; 633 ACPI_DEVICE_INFO *devinfo; 634 ACPI_OBJECT_TYPE type; 635 ACPI_NAME_UNION *anu; 636 ACPI_STATUS rv; 637 int clear, i; 638 639 rv = AcpiGetObjectInfo(handle, &devinfo); 640 641 if (ACPI_FAILURE(rv)) 642 return AE_OK; /* Do not terminate the walk. */ 643 644 type = devinfo->Type; 645 646 switch (type) { 647 648 case ACPI_TYPE_DEVICE: 649 650 #ifdef ACPI_ACTIVATE_DEV 651 acpi_activate_device(handle, &devinfo); 652 #endif 653 654 case ACPI_TYPE_PROCESSOR: 655 case ACPI_TYPE_THERMAL: 656 case ACPI_TYPE_POWER: 657 658 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 659 660 if (ad == NULL) 661 return AE_NO_MEMORY; 662 663 ad->ad_device = NULL; 664 ad->ad_notify = NULL; 665 ad->ad_pciinfo = NULL; 666 667 ad->ad_type = type; 668 ad->ad_handle = handle; 669 ad->ad_devinfo = devinfo; 670 671 ad->ad_root = sc->sc_dev; 672 ad->ad_parent = awc->aw_parent; 673 674 anu = (ACPI_NAME_UNION *)&devinfo->Name; 675 ad->ad_name[4] = '\0'; 676 677 for (i = 3, clear = 0; i >= 0; i--) { 678 679 if (clear == 0 && anu->Ascii[i] == '_') 680 ad->ad_name[i] = '\0'; 681 else { 682 ad->ad_name[i] = anu->Ascii[i]; 683 clear = 1; 684 } 685 } 686 687 if (ad->ad_name[0] == '\0') 688 ad->ad_name[0] = '_'; 689 690 SIMPLEQ_INIT(&ad->ad_child_head); 691 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 692 693 if (ad->ad_parent != NULL) { 694 695 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 696 ad, ad_child_list); 697 } 698 699 awc->aw_parent = ad; 700 701 #ifdef ACPIVERBOSE 702 703 if (type != ACPI_TYPE_DEVICE) 704 return AE_OK; 705 706 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 707 708 aprint_normal("HID %-10s ", 709 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 710 devinfo->HardwareId.String: "-"); 711 712 aprint_normal("UID %-4s ", 713 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 714 devinfo->UniqueId.String : "-"); 715 716 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 717 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 718 else 719 aprint_normal("STA %10s ", "-"); 720 721 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 722 aprint_normal("ADR 0x%016" PRIX64"", 723 devinfo->Address); 724 725 aprint_normal("\n"); 726 #endif 727 } 728 729 return AE_OK; 730 } 731 732 static ACPI_STATUS 733 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 734 void *context, void **status) 735 { 736 struct acpi_walkcontext *awc = context; 737 738 KASSERT(awc != NULL); 739 KASSERT(awc->aw_parent != NULL); 740 741 if (handle == awc->aw_parent->ad_handle) 742 awc->aw_parent = awc->aw_parent->ad_parent; 743 744 return AE_OK; 745 } 746 747 #ifdef ACPI_ACTIVATE_DEV 748 749 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 750 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 751 752 static void 753 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 754 { 755 ACPI_DEVICE_INFO *newdi; 756 ACPI_STATUS rv; 757 uint32_t old; 758 759 /* 760 * If the device is valid and present, 761 * but not enabled, try to activate it. 762 */ 763 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 764 return; 765 766 old = (*di)->CurrentStatus; 767 768 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 769 return; 770 771 rv = acpi_allocate_resources(handle); 772 773 if (ACPI_FAILURE(rv)) 774 goto fail; 775 776 rv = AcpiGetObjectInfo(handle, &newdi); 777 778 if (ACPI_FAILURE(rv)) 779 goto fail; 780 781 ACPI_FREE(*di); 782 *di = newdi; 783 784 aprint_verbose_dev(acpi_softc->sc_dev, 785 "%s activated, STA 0x%08X -> STA 0x%08X\n", 786 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 787 788 return; 789 790 fail: 791 aprint_error_dev(acpi_softc->sc_dev, "failed to " 792 "activate %s\n", (*di)->HardwareId.String); 793 } 794 795 /* 796 * XXX: This very incomplete. 797 */ 798 ACPI_STATUS 799 acpi_allocate_resources(ACPI_HANDLE handle) 800 { 801 ACPI_BUFFER bufp, bufc, bufn; 802 ACPI_RESOURCE *resp, *resc, *resn; 803 ACPI_RESOURCE_IRQ *irq; 804 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 805 ACPI_STATUS rv; 806 uint delta; 807 808 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 809 if (ACPI_FAILURE(rv)) 810 goto out; 811 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 812 if (ACPI_FAILURE(rv)) { 813 goto out1; 814 } 815 816 bufn.Length = 1000; 817 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 818 resp = bufp.Pointer; 819 resc = bufc.Pointer; 820 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 821 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 822 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 823 resp = ACPI_NEXT_RESOURCE(resp); 824 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 825 break; 826 /* Found identical Id */ 827 resn->Type = resc->Type; 828 switch (resc->Type) { 829 case ACPI_RESOURCE_TYPE_IRQ: 830 memcpy(&resn->Data, &resp->Data, 831 sizeof(ACPI_RESOURCE_IRQ)); 832 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 833 irq->Interrupts[0] = 834 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 835 Interrupts[irq->InterruptCount-1]; 836 irq->InterruptCount = 1; 837 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 838 break; 839 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 840 memcpy(&resn->Data, &resp->Data, 841 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 842 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 843 #if 0 844 /* 845 * XXX: Not duplicating the interrupt logic above 846 * because its not clear what it accomplishes. 847 */ 848 xirq->Interrupts[0] = 849 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 850 Interrupts[irq->NumberOfInterrupts-1]; 851 xirq->NumberOfInterrupts = 1; 852 #endif 853 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 854 break; 855 case ACPI_RESOURCE_TYPE_IO: 856 memcpy(&resn->Data, &resp->Data, 857 sizeof(ACPI_RESOURCE_IO)); 858 resn->Length = resp->Length; 859 break; 860 default: 861 aprint_error_dev(acpi_softc->sc_dev, 862 "%s: invalid type %u\n", __func__, resc->Type); 863 rv = AE_BAD_DATA; 864 goto out2; 865 } 866 resc = ACPI_NEXT_RESOURCE(resc); 867 resn = ACPI_NEXT_RESOURCE(resn); 868 resp = ACPI_NEXT_RESOURCE(resp); 869 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 870 if (delta >= 871 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 872 bufn.Length *= 2; 873 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 874 M_ACPI, M_WAITOK); 875 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 876 delta); 877 } 878 } 879 880 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 881 aprint_error_dev(acpi_softc->sc_dev, 882 "%s: resc not exhausted\n", __func__); 883 rv = AE_BAD_DATA; 884 goto out3; 885 } 886 887 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 888 rv = AcpiSetCurrentResources(handle, &bufn); 889 890 if (ACPI_FAILURE(rv)) 891 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 892 "resources: %s\n", __func__, AcpiFormatException(rv)); 893 894 out3: 895 free(bufn.Pointer, M_ACPI); 896 out2: 897 ACPI_FREE(bufc.Pointer); 898 out1: 899 ACPI_FREE(bufp.Pointer); 900 out: 901 return rv; 902 } 903 904 #undef ACPI_DEV_VALID 905 #undef ACPI_DEV_STATUS 906 907 #endif /* ACPI_ACTIVATE_DEV */ 908 909 /* 910 * Device attachment. 911 */ 912 static int 913 acpi_rescan(device_t self, const char *ifattr, const int *locators) 914 { 915 struct acpi_softc *sc = device_private(self); 916 917 acpi_rescan1(sc, ifattr, locators); 918 919 return 0; 920 } 921 922 static void 923 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 924 { 925 926 if (ifattr_match(ifattr, "acpinodebus")) 927 acpi_rescan_nodes(sc); 928 929 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 930 sc->sc_apmbus = config_found_ia(sc->sc_dev, 931 "acpiapmbus", NULL, NULL); 932 } 933 934 static void 935 acpi_rescan_nodes(struct acpi_softc *sc) 936 { 937 struct acpi_attach_args aa; 938 struct acpi_devnode *ad; 939 940 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 941 942 if (ad->ad_device != NULL) 943 continue; 944 945 aa.aa_node = ad; 946 aa.aa_iot = sc->sc_iot; 947 aa.aa_memt = sc->sc_memt; 948 aa.aa_pc = sc->sc_pc; 949 aa.aa_pciflags = sc->sc_pciflags; 950 aa.aa_ic = sc->sc_ic; 951 952 /* 953 * XXX: We only attach devices which are present, enabled, and 954 * functioning properly. However, if a device is enabled, 955 * it is decoding resources and we should claim these, 956 * if possible. This requires changes to bus_space(9). 957 */ 958 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 959 960 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 961 ACPI_VALID_STA && 962 (ad->ad_devinfo->CurrentStatus & 963 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 964 ACPI_STA_DEV_OK)) != 965 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 966 ACPI_STA_DEV_OK)) 967 continue; 968 } 969 970 /* 971 * XXX: The same problem as above. As for example 972 * thermal zones and power resources do not 973 * have a valid HID, only evaluate devices. 974 */ 975 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 976 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 977 continue; 978 979 /* 980 * Handled internally. 981 */ 982 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 983 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 984 continue; 985 986 /* 987 * Skip ignored HIDs. 988 */ 989 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 990 continue; 991 992 ad->ad_device = config_found_ia(sc->sc_dev, 993 "acpinodebus", &aa, acpi_print); 994 } 995 } 996 997 #define ACPI_STA_DEV_VALID \ 998 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 999 1000 static void 1001 acpi_rescan_capabilities(struct acpi_softc *sc) 1002 { 1003 struct acpi_devnode *ad; 1004 ACPI_DEVICE_INFO *di; 1005 ACPI_HANDLE tmp; 1006 ACPI_STATUS rv; 1007 1008 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1009 1010 di = ad->ad_devinfo; 1011 1012 if (di->Type != ACPI_TYPE_DEVICE) 1013 continue; 1014 1015 if ((di->Valid & ACPI_VALID_STA) != 0 && 1016 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 1017 ACPI_STA_DEV_VALID) 1018 continue; 1019 1020 /* 1021 * Scan power resource capabilities. 1022 */ 1023 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1024 1025 if (ACPI_FAILURE(rv)) 1026 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 1027 1028 if (ACPI_SUCCESS(rv)) 1029 ad->ad_flags |= ACPI_DEVICE_POWER; 1030 1031 /* 1032 * Scan wake-up capabilities. 1033 */ 1034 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1035 1036 if (ACPI_SUCCESS(rv)) { 1037 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1038 acpi_wakedev_add(ad); 1039 } 1040 1041 if (ad->ad_flags != 0) { 1042 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 1043 1044 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 1045 aprint_debug("power "); 1046 1047 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 1048 aprint_debug("wake-up "); 1049 1050 aprint_debug("\n"); 1051 } 1052 } 1053 } 1054 1055 #undef ACPI_STA_DEV_VALID 1056 1057 static int 1058 acpi_print(void *aux, const char *pnp) 1059 { 1060 struct acpi_attach_args *aa = aux; 1061 ACPI_STATUS rv; 1062 1063 if (pnp) { 1064 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1065 char *pnpstr = 1066 aa->aa_node->ad_devinfo->HardwareId.String; 1067 ACPI_BUFFER buf; 1068 1069 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1070 pnpstr); 1071 1072 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1073 "_STR", &buf); 1074 if (ACPI_SUCCESS(rv)) { 1075 ACPI_OBJECT *obj = buf.Pointer; 1076 switch (obj->Type) { 1077 case ACPI_TYPE_STRING: 1078 aprint_normal("[%s] ", obj->String.Pointer); 1079 break; 1080 case ACPI_TYPE_BUFFER: 1081 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1082 break; 1083 default: 1084 aprint_normal("type %u ",obj->Type); 1085 break; 1086 } 1087 ACPI_FREE(buf.Pointer); 1088 } 1089 #ifdef ACPIVERBOSE 1090 else { 1091 int i; 1092 1093 for (i = 0; i < __arraycount(acpi_knowndevs); 1094 i++) { 1095 if (strcmp(acpi_knowndevs[i].pnp, 1096 pnpstr) == 0) { 1097 aprint_normal("[%s] ", 1098 acpi_knowndevs[i].str); 1099 } 1100 } 1101 } 1102 1103 #endif 1104 aprint_normal("at %s", pnp); 1105 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1106 aprint_normal("%s (ACPI Object Type '%s' " 1107 "[0x%02x]) ", aa->aa_node->ad_name, 1108 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1109 aa->aa_node->ad_devinfo->Type); 1110 aprint_normal("at %s", pnp); 1111 } else 1112 return 0; 1113 } else { 1114 aprint_normal(" (%s", aa->aa_node->ad_name); 1115 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1116 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1117 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1118 const char *uid; 1119 1120 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1121 if (uid[0] == '\0') 1122 uid = "<null>"; 1123 aprint_normal("-%s", uid); 1124 } 1125 } 1126 aprint_normal(")"); 1127 } 1128 1129 return UNCONF; 1130 } 1131 1132 /* 1133 * Notify. 1134 */ 1135 static void 1136 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1137 { 1138 struct acpi_softc *sc = acpi_softc; 1139 struct acpi_devnode *ad; 1140 1141 KASSERT(sc != NULL); 1142 KASSERT(aux == NULL); 1143 KASSERT(acpi_active != 0); 1144 1145 if (acpi_suspended != 0) 1146 return; 1147 1148 /* 1149 * System: 0x00 - 0x7F. 1150 * Device: 0x80 - 0xFF. 1151 */ 1152 switch (event) { 1153 1154 case ACPI_NOTIFY_BUS_CHECK: 1155 case ACPI_NOTIFY_DEVICE_CHECK: 1156 case ACPI_NOTIFY_DEVICE_WAKE: 1157 case ACPI_NOTIFY_EJECT_REQUEST: 1158 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1159 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1160 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1161 case ACPI_NOTIFY_POWER_FAULT: 1162 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1163 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1164 case ACPI_NOTIFY_RESERVED: 1165 case ACPI_NOTIFY_LOCALITY_UPDATE: 1166 break; 1167 } 1168 1169 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1170 "%s (%p)\n", event, acpi_name(handle), handle)); 1171 1172 /* 1173 * We deliver notifications only to drivers 1174 * that have been succesfully attached and 1175 * that have registered a handler with us. 1176 * The opaque pointer is always the device_t. 1177 */ 1178 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1179 1180 if (ad->ad_device == NULL) 1181 continue; 1182 1183 if (ad->ad_notify == NULL) 1184 continue; 1185 1186 if (ad->ad_handle != handle) 1187 continue; 1188 1189 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1190 1191 return; 1192 } 1193 1194 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1195 "for %s (%p)\n", event, acpi_name(handle), handle); 1196 } 1197 1198 bool 1199 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1200 { 1201 struct acpi_softc *sc = acpi_softc; 1202 1203 KASSERT(sc != NULL); 1204 KASSERT(acpi_active != 0); 1205 1206 if (acpi_suspended != 0) 1207 goto fail; 1208 1209 if (ad == NULL || notify == NULL) 1210 goto fail; 1211 1212 ad->ad_notify = notify; 1213 1214 return true; 1215 1216 fail: 1217 aprint_error_dev(sc->sc_dev, "failed to register notify " 1218 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1219 1220 return false; 1221 } 1222 1223 void 1224 acpi_deregister_notify(struct acpi_devnode *ad) 1225 { 1226 1227 ad->ad_notify = NULL; 1228 } 1229 1230 /* 1231 * Fixed buttons. 1232 */ 1233 static void 1234 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1235 { 1236 struct sysmon_pswitch *smpsw; 1237 ACPI_STATUS rv; 1238 int type; 1239 1240 switch (event) { 1241 1242 case ACPI_EVENT_POWER_BUTTON: 1243 1244 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1245 return; 1246 1247 type = PSWITCH_TYPE_POWER; 1248 smpsw = &sc->sc_smpsw_power; 1249 break; 1250 1251 case ACPI_EVENT_SLEEP_BUTTON: 1252 1253 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1254 return; 1255 1256 type = PSWITCH_TYPE_SLEEP; 1257 smpsw = &sc->sc_smpsw_sleep; 1258 break; 1259 1260 default: 1261 rv = AE_TYPE; 1262 goto fail; 1263 } 1264 1265 smpsw->smpsw_type = type; 1266 smpsw->smpsw_name = device_xname(sc->sc_dev); 1267 1268 if (sysmon_pswitch_register(smpsw) != 0) { 1269 rv = AE_ERROR; 1270 goto fail; 1271 } 1272 1273 rv = AcpiInstallFixedEventHandler(event, 1274 acpi_fixed_button_handler, smpsw); 1275 1276 if (ACPI_FAILURE(rv)) 1277 goto fail; 1278 1279 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1280 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1281 1282 return; 1283 1284 fail: 1285 aprint_error_dev(sc->sc_dev, "failed to register " 1286 "fixed event: %s\n", AcpiFormatException(rv)); 1287 } 1288 1289 static void 1290 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1291 { 1292 struct sysmon_pswitch *smpsw; 1293 ACPI_STATUS rv; 1294 1295 switch (event) { 1296 1297 case ACPI_EVENT_POWER_BUTTON: 1298 smpsw = &sc->sc_smpsw_power; 1299 1300 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1301 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1302 return; 1303 } 1304 1305 break; 1306 1307 case ACPI_EVENT_SLEEP_BUTTON: 1308 smpsw = &sc->sc_smpsw_sleep; 1309 1310 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1311 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1312 return; 1313 } 1314 1315 break; 1316 1317 default: 1318 rv = AE_TYPE; 1319 goto fail; 1320 } 1321 1322 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1323 1324 if (ACPI_SUCCESS(rv)) { 1325 sysmon_pswitch_unregister(smpsw); 1326 return; 1327 } 1328 1329 fail: 1330 aprint_error_dev(sc->sc_dev, "failed to deregister " 1331 "fixed event: %s\n", AcpiFormatException(rv)); 1332 } 1333 1334 static uint32_t 1335 acpi_fixed_button_handler(void *context) 1336 { 1337 static const int handler = OSL_NOTIFY_HANDLER; 1338 struct sysmon_pswitch *smpsw = context; 1339 1340 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1341 1342 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1343 1344 return ACPI_INTERRUPT_HANDLED; 1345 } 1346 1347 static void 1348 acpi_fixed_button_pressed(void *context) 1349 { 1350 struct sysmon_pswitch *smpsw = context; 1351 1352 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1353 __func__, smpsw->smpsw_name)); 1354 1355 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1356 } 1357 1358 /* 1359 * Sleep. 1360 */ 1361 static void 1362 acpi_sleep_init(struct acpi_softc *sc) 1363 { 1364 uint8_t a, b, i; 1365 ACPI_STATUS rv; 1366 1367 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1368 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1369 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1370 1371 /* 1372 * Evaluate supported sleep states. 1373 */ 1374 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1375 1376 rv = AcpiGetSleepTypeData(i, &a, &b); 1377 1378 if (ACPI_SUCCESS(rv)) 1379 sc->sc_sleepstates |= __BIT(i); 1380 } 1381 } 1382 1383 ACPI_STATUS 1384 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1385 { 1386 ACPI_STATUS rv = AE_OK; 1387 int err; 1388 1389 if (state == sc->sc_sleepstate) 1390 return AE_OK; 1391 1392 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1393 1394 switch (state) { 1395 1396 case ACPI_STATE_S0: 1397 break; 1398 1399 case ACPI_STATE_S1: 1400 case ACPI_STATE_S2: 1401 case ACPI_STATE_S3: 1402 case ACPI_STATE_S4: 1403 1404 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1405 aprint_error_dev(sc->sc_dev, "sleep state " 1406 "S%d is not available\n", state); 1407 break; 1408 } 1409 1410 acpi_wakedev_commit(sc, state); 1411 1412 if (state != ACPI_STATE_S1 && 1413 pmf_system_suspend(PMF_Q_NONE) != true) { 1414 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1415 break; 1416 } 1417 1418 rv = AcpiEnterSleepStatePrep(state); 1419 1420 if (ACPI_FAILURE(rv)) { 1421 aprint_error_dev(sc->sc_dev, "failed to prepare " 1422 "S%d: %s\n", state, AcpiFormatException(rv)); 1423 break; 1424 } 1425 1426 sc->sc_sleepstate = state; 1427 1428 if (state == ACPI_STATE_S1) { 1429 1430 /* Just enter the state. */ 1431 acpi_md_OsDisableInterrupt(); 1432 rv = AcpiEnterSleepState(state); 1433 1434 if (ACPI_FAILURE(rv)) 1435 aprint_error_dev(sc->sc_dev, "failed to " 1436 "enter S1: %s\n", AcpiFormatException(rv)); 1437 1438 (void)AcpiLeaveSleepState(state); 1439 1440 } else { 1441 1442 err = acpi_md_sleep(state); 1443 1444 if (state == ACPI_STATE_S4) 1445 AcpiEnable(); 1446 1447 pmf_system_bus_resume(PMF_Q_NONE); 1448 (void)AcpiLeaveSleepState(state); 1449 pmf_system_resume(PMF_Q_NONE); 1450 } 1451 1452 break; 1453 case ACPI_STATE_S5: 1454 1455 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1456 1457 if (ACPI_FAILURE(rv)) { 1458 aprint_error_dev(sc->sc_dev, "failed to prepare " 1459 "S%d: %s\n", state, AcpiFormatException(rv)); 1460 break; 1461 } 1462 1463 DELAY(1000000); 1464 1465 sc->sc_sleepstate = state; 1466 acpi_md_OsDisableInterrupt(); 1467 1468 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1469 1470 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1471 break; 1472 } 1473 1474 sc->sc_sleepstate = ACPI_STATE_S0; 1475 1476 return rv; 1477 } 1478 1479 /* 1480 * Sysctl. 1481 */ 1482 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1483 { 1484 const struct sysctlnode *mnode, *rnode; 1485 int err; 1486 1487 err = sysctl_createv(clog, 0, NULL, &rnode, 1488 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1489 NULL, NULL, 0, NULL, 0, 1490 CTL_HW, CTL_EOL); 1491 1492 if (err != 0) 1493 return; 1494 1495 err = sysctl_createv(clog, 0, &rnode, &rnode, 1496 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1497 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1498 NULL, 0, NULL, 0, 1499 CTL_CREATE, CTL_EOL); 1500 1501 if (err != 0) 1502 return; 1503 1504 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1505 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1506 "root", SYSCTL_DESCR("ACPI root pointer"), 1507 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1508 CTL_CREATE, CTL_EOL); 1509 1510 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1511 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1512 "supported_states", SYSCTL_DESCR("Supported system states"), 1513 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1514 CTL_CREATE, CTL_EOL); 1515 1516 err = sysctl_createv(NULL, 0, NULL, &mnode, 1517 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1518 NULL, NULL, 0, NULL, 0, 1519 CTL_MACHDEP, CTL_EOL); 1520 1521 if (err == 0) { 1522 1523 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1524 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1525 "sleep_state", SYSCTL_DESCR("System sleep state"), 1526 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1527 CTL_CREATE, CTL_EOL); 1528 } 1529 1530 err = sysctl_createv(clog, 0, &rnode, &rnode, 1531 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1532 "stat", SYSCTL_DESCR("ACPI statistics"), 1533 NULL, 0, NULL, 0, 1534 CTL_CREATE, CTL_EOL); 1535 1536 if (err != 0) 1537 return; 1538 1539 (void)sysctl_createv(clog, 0, &rnode, NULL, 1540 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1541 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1542 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1543 CTL_CREATE, CTL_EOL); 1544 1545 (void)sysctl_createv(clog, 0, &rnode, NULL, 1546 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1547 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1548 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1549 CTL_CREATE, CTL_EOL); 1550 1551 (void)sysctl_createv(clog, 0, &rnode, NULL, 1552 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1553 "fixed", SYSCTL_DESCR("Number of fixed events"), 1554 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1555 CTL_CREATE, CTL_EOL); 1556 1557 (void)sysctl_createv(clog, 0, &rnode, NULL, 1558 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1559 "method", SYSCTL_DESCR("Number of methods executed"), 1560 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1561 CTL_CREATE, CTL_EOL); 1562 1563 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1564 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1565 } 1566 1567 static int 1568 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1569 { 1570 struct sysctlnode node; 1571 uint64_t t; 1572 int err, i; 1573 1574 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1575 t += AcpiFixedEventCount[i]; 1576 1577 node = *rnode; 1578 node.sysctl_data = &t; 1579 1580 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1581 1582 if (err || newp == NULL) 1583 return err; 1584 1585 return 0; 1586 } 1587 1588 static int 1589 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1590 { 1591 struct acpi_softc *sc = acpi_softc; 1592 struct sysctlnode node; 1593 int err, t; 1594 1595 if (acpi_softc == NULL) 1596 return ENOSYS; 1597 1598 node = *rnode; 1599 t = sc->sc_sleepstate; 1600 node.sysctl_data = &t; 1601 1602 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1603 1604 if (err || newp == NULL) 1605 return err; 1606 1607 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1608 return EINVAL; 1609 1610 acpi_enter_sleep_state(sc, t); 1611 1612 return 0; 1613 } 1614 1615 static int 1616 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1617 { 1618 struct acpi_softc *sc = acpi_softc; 1619 struct sysctlnode node; 1620 char t[3 * 6 + 1]; 1621 int err; 1622 1623 if (acpi_softc == NULL) 1624 return ENOSYS; 1625 1626 (void)memset(t, '\0', sizeof(t)); 1627 1628 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1629 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1630 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1631 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1632 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1633 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1634 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1635 1636 node = *rnode; 1637 node.sysctl_data = &t; 1638 1639 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1640 1641 if (err || newp == NULL) 1642 return err; 1643 1644 return 0; 1645 } 1646 1647 /* 1648 * Miscellaneous. 1649 */ 1650 ACPI_PHYSICAL_ADDRESS 1651 acpi_OsGetRootPointer(void) 1652 { 1653 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1654 1655 /* 1656 * We let MD code handle this since there are multiple ways to do it: 1657 * 1658 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1659 * 1660 * IA-64: Use the EFI. 1661 */ 1662 PhysicalAddress = acpi_md_OsGetRootPointer(); 1663 1664 if (acpi_root_pointer == 0) 1665 acpi_root_pointer = PhysicalAddress; 1666 1667 return PhysicalAddress; 1668 } 1669 1670 static ACPI_TABLE_HEADER * 1671 acpi_map_rsdt(void) 1672 { 1673 ACPI_PHYSICAL_ADDRESS paddr; 1674 ACPI_TABLE_RSDP *rsdp; 1675 1676 paddr = AcpiOsGetRootPointer(); 1677 1678 if (paddr == 0) 1679 return NULL; 1680 1681 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1682 1683 if (rsdp == NULL) 1684 return NULL; 1685 1686 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1687 paddr = rsdp->XsdtPhysicalAddress; 1688 else 1689 paddr = rsdp->RsdtPhysicalAddress; 1690 1691 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1692 1693 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1694 } 1695 1696 static void 1697 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1698 { 1699 1700 if (rsdt == NULL) 1701 return; 1702 1703 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1704 } 1705
Indexes created Wed Oct 01 19:09:53 GMT 2025