acpi.c revision 1.183
1 /* $NetBSD: acpi.c,v 1.183 2010/04/23 07:04:18 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 1.183 2010/04/23 07:04:18 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 ACPIVERBOSE 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 acpi_rescan1(sc, NULL, NULL); 601 acpi_rescan_capabilities(sc); 602 603 (void)acpi_pcidev_scan(sc->sc_root); 604 605 #ifdef ACPIVERBOSE 606 aprint_normal("\n"); 607 acpi_print_tree(sc->sc_root, 0); 608 #endif 609 } 610 611 #ifdef ACPIVERBOSE 612 static void 613 acpi_print_tree(struct acpi_devnode *ad, uint32_t level) 614 { 615 struct acpi_devnode *child; 616 uint32_t i; 617 618 for (i = 0; i < level; i++) 619 aprint_normal(" "); 620 621 aprint_normal("%-5s [%02u] [%c%c] ", ad->ad_name, ad->ad_type, 622 ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) ? 'P' : ' ', 623 ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) ? 'W' : ' '); 624 625 if (ad->ad_pciinfo != NULL) { 626 627 aprint_normal("(PCI) @ 0x%02X:0x%02X:0x%02X:0x%02X ", 628 ad->ad_pciinfo->ap_segment, ad->ad_pciinfo->ap_bus, 629 ad->ad_pciinfo->ap_device, ad->ad_pciinfo->ap_function); 630 631 if ((ad->ad_devinfo->Flags & ACPI_PCI_ROOT_BRIDGE) != 0) 632 aprint_normal("[R] "); 633 634 if (ad->ad_pciinfo->ap_bridge != false) 635 aprint_normal("[B] -> 0x%02X", 636 ad->ad_pciinfo->ap_downbus); 637 } 638 639 aprint_normal("\n\n"); 640 641 SIMPLEQ_FOREACH(child, &ad->ad_child_head, ad_child_list) 642 acpi_print_tree(child, level + 1); 643 } 644 #endif 645 646 static ACPI_STATUS 647 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 648 void *context, void **status) 649 { 650 struct acpi_walkcontext *awc = context; 651 struct acpi_softc *sc = awc->aw_sc; 652 struct acpi_devnode *ad; 653 ACPI_DEVICE_INFO *devinfo; 654 ACPI_OBJECT_TYPE type; 655 ACPI_NAME_UNION *anu; 656 ACPI_STATUS rv; 657 int clear, i; 658 659 rv = AcpiGetObjectInfo(handle, &devinfo); 660 661 if (ACPI_FAILURE(rv)) 662 return AE_OK; /* Do not terminate the walk. */ 663 664 type = devinfo->Type; 665 666 switch (type) { 667 668 case ACPI_TYPE_DEVICE: 669 670 #ifdef ACPI_ACTIVATE_DEV 671 acpi_activate_device(handle, &devinfo); 672 #endif 673 674 case ACPI_TYPE_PROCESSOR: 675 case ACPI_TYPE_THERMAL: 676 case ACPI_TYPE_POWER: 677 678 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 679 680 if (ad == NULL) 681 return AE_NO_MEMORY; 682 683 ad->ad_device = NULL; 684 ad->ad_notify = NULL; 685 ad->ad_pciinfo = NULL; 686 687 ad->ad_type = type; 688 ad->ad_handle = handle; 689 ad->ad_devinfo = devinfo; 690 691 ad->ad_root = sc->sc_dev; 692 ad->ad_parent = awc->aw_parent; 693 694 anu = (ACPI_NAME_UNION *)&devinfo->Name; 695 ad->ad_name[4] = '\0'; 696 697 for (i = 3, clear = 0; i >= 0; i--) { 698 699 if (clear == 0 && anu->Ascii[i] == '_') 700 ad->ad_name[i] = '\0'; 701 else { 702 ad->ad_name[i] = anu->Ascii[i]; 703 clear = 1; 704 } 705 } 706 707 if (ad->ad_name[0] == '\0') 708 ad->ad_name[0] = '_'; 709 710 SIMPLEQ_INIT(&ad->ad_child_head); 711 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 712 713 if (ad->ad_parent != NULL) { 714 715 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 716 ad, ad_child_list); 717 } 718 719 awc->aw_parent = ad; 720 721 #ifdef ACPIVERBOSE 722 723 if (type != ACPI_TYPE_DEVICE) 724 return AE_OK; 725 726 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 727 728 aprint_normal("HID %-10s ", 729 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 730 devinfo->HardwareId.String: "-"); 731 732 aprint_normal("UID %-4s ", 733 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 734 devinfo->UniqueId.String : "-"); 735 736 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 737 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 738 else 739 aprint_normal("STA %10s ", "-"); 740 741 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 742 aprint_normal("ADR 0x%016" PRIX64"", 743 devinfo->Address); 744 else 745 aprint_normal("ADR -"); 746 747 aprint_normal("\n"); 748 #endif 749 } 750 751 return AE_OK; 752 } 753 754 static ACPI_STATUS 755 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 756 void *context, void **status) 757 { 758 struct acpi_walkcontext *awc = context; 759 760 KASSERT(awc != NULL); 761 KASSERT(awc->aw_parent != NULL); 762 763 if (handle == awc->aw_parent->ad_handle) 764 awc->aw_parent = awc->aw_parent->ad_parent; 765 766 return AE_OK; 767 } 768 769 #ifdef ACPI_ACTIVATE_DEV 770 771 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 772 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 773 774 static void 775 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 776 { 777 ACPI_DEVICE_INFO *newdi; 778 ACPI_STATUS rv; 779 uint32_t old; 780 781 /* 782 * If the device is valid and present, 783 * but not enabled, try to activate it. 784 */ 785 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 786 return; 787 788 old = (*di)->CurrentStatus; 789 790 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 791 return; 792 793 rv = acpi_allocate_resources(handle); 794 795 if (ACPI_FAILURE(rv)) 796 goto fail; 797 798 rv = AcpiGetObjectInfo(handle, &newdi); 799 800 if (ACPI_FAILURE(rv)) 801 goto fail; 802 803 ACPI_FREE(*di); 804 *di = newdi; 805 806 aprint_verbose_dev(acpi_softc->sc_dev, 807 "%s activated, STA 0x%08X -> STA 0x%08X\n", 808 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 809 810 return; 811 812 fail: 813 aprint_error_dev(acpi_softc->sc_dev, "failed to " 814 "activate %s\n", (*di)->HardwareId.String); 815 } 816 817 /* 818 * XXX: This very incomplete. 819 */ 820 ACPI_STATUS 821 acpi_allocate_resources(ACPI_HANDLE handle) 822 { 823 ACPI_BUFFER bufp, bufc, bufn; 824 ACPI_RESOURCE *resp, *resc, *resn; 825 ACPI_RESOURCE_IRQ *irq; 826 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 827 ACPI_STATUS rv; 828 uint delta; 829 830 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 831 if (ACPI_FAILURE(rv)) 832 goto out; 833 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 834 if (ACPI_FAILURE(rv)) { 835 goto out1; 836 } 837 838 bufn.Length = 1000; 839 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 840 resp = bufp.Pointer; 841 resc = bufc.Pointer; 842 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 843 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 844 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 845 resp = ACPI_NEXT_RESOURCE(resp); 846 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 847 break; 848 /* Found identical Id */ 849 resn->Type = resc->Type; 850 switch (resc->Type) { 851 case ACPI_RESOURCE_TYPE_IRQ: 852 memcpy(&resn->Data, &resp->Data, 853 sizeof(ACPI_RESOURCE_IRQ)); 854 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 855 irq->Interrupts[0] = 856 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 857 Interrupts[irq->InterruptCount-1]; 858 irq->InterruptCount = 1; 859 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 860 break; 861 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 862 memcpy(&resn->Data, &resp->Data, 863 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 864 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 865 #if 0 866 /* 867 * XXX: Not duplicating the interrupt logic above 868 * because its not clear what it accomplishes. 869 */ 870 xirq->Interrupts[0] = 871 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 872 Interrupts[irq->NumberOfInterrupts-1]; 873 xirq->NumberOfInterrupts = 1; 874 #endif 875 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 876 break; 877 case ACPI_RESOURCE_TYPE_IO: 878 memcpy(&resn->Data, &resp->Data, 879 sizeof(ACPI_RESOURCE_IO)); 880 resn->Length = resp->Length; 881 break; 882 default: 883 aprint_error_dev(acpi_softc->sc_dev, 884 "%s: invalid type %u\n", __func__, resc->Type); 885 rv = AE_BAD_DATA; 886 goto out2; 887 } 888 resc = ACPI_NEXT_RESOURCE(resc); 889 resn = ACPI_NEXT_RESOURCE(resn); 890 resp = ACPI_NEXT_RESOURCE(resp); 891 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 892 if (delta >= 893 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 894 bufn.Length *= 2; 895 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 896 M_ACPI, M_WAITOK); 897 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 898 delta); 899 } 900 } 901 902 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 903 aprint_error_dev(acpi_softc->sc_dev, 904 "%s: resc not exhausted\n", __func__); 905 rv = AE_BAD_DATA; 906 goto out3; 907 } 908 909 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 910 rv = AcpiSetCurrentResources(handle, &bufn); 911 912 if (ACPI_FAILURE(rv)) 913 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 914 "resources: %s\n", __func__, AcpiFormatException(rv)); 915 916 out3: 917 free(bufn.Pointer, M_ACPI); 918 out2: 919 ACPI_FREE(bufc.Pointer); 920 out1: 921 ACPI_FREE(bufp.Pointer); 922 out: 923 return rv; 924 } 925 926 #undef ACPI_DEV_VALID 927 #undef ACPI_DEV_STATUS 928 929 #endif /* ACPI_ACTIVATE_DEV */ 930 931 /* 932 * Device attachment. 933 */ 934 static int 935 acpi_rescan(device_t self, const char *ifattr, const int *locators) 936 { 937 struct acpi_softc *sc = device_private(self); 938 939 acpi_rescan1(sc, ifattr, locators); 940 941 return 0; 942 } 943 944 static void 945 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 946 { 947 948 if (ifattr_match(ifattr, "acpinodebus")) 949 acpi_rescan_nodes(sc); 950 951 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 952 sc->sc_apmbus = config_found_ia(sc->sc_dev, 953 "acpiapmbus", NULL, NULL); 954 } 955 956 static void 957 acpi_rescan_nodes(struct acpi_softc *sc) 958 { 959 struct acpi_attach_args aa; 960 struct acpi_devnode *ad; 961 962 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 963 964 if (ad->ad_device != NULL) 965 continue; 966 967 aa.aa_node = ad; 968 aa.aa_iot = sc->sc_iot; 969 aa.aa_memt = sc->sc_memt; 970 aa.aa_pc = sc->sc_pc; 971 aa.aa_pciflags = sc->sc_pciflags; 972 aa.aa_ic = sc->sc_ic; 973 974 /* 975 * XXX: We only attach devices which are present, enabled, and 976 * functioning properly. However, if a device is enabled, 977 * it is decoding resources and we should claim these, 978 * if possible. This requires changes to bus_space(9). 979 */ 980 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 981 982 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 983 ACPI_VALID_STA && 984 (ad->ad_devinfo->CurrentStatus & 985 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 986 ACPI_STA_DEV_OK)) != 987 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 988 ACPI_STA_DEV_OK)) 989 continue; 990 } 991 992 /* 993 * XXX: The same problem as above. As for example 994 * thermal zones and power resources do not 995 * have a valid HID, only evaluate devices. 996 */ 997 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 998 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 999 continue; 1000 1001 /* 1002 * Handled internally. 1003 */ 1004 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR) 1005 continue; 1006 1007 /* 1008 * Ditto, but bind power resources. 1009 */ 1010 if (ad->ad_devinfo->Type == ACPI_TYPE_POWER) { 1011 acpi_power_res_add(ad); 1012 continue; 1013 } 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 * If any power states are supported, 1053 * at least _PR0 and _PR3 must be present. 1054 */ 1055 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1056 1057 if (ACPI_SUCCESS(rv)) { 1058 ad->ad_flags |= ACPI_DEVICE_POWER; 1059 (void)acpi_power_get(ad, NULL); 1060 } 1061 1062 /* 1063 * Scan wake-up capabilities. 1064 */ 1065 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1066 1067 if (ACPI_SUCCESS(rv)) { 1068 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1069 acpi_wakedev_add(ad); 1070 } 1071 } 1072 } 1073 1074 #undef ACPI_STA_DEV_VALID 1075 1076 static int 1077 acpi_print(void *aux, const char *pnp) 1078 { 1079 struct acpi_attach_args *aa = aux; 1080 ACPI_STATUS rv; 1081 1082 if (pnp) { 1083 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1084 char *pnpstr = 1085 aa->aa_node->ad_devinfo->HardwareId.String; 1086 ACPI_BUFFER buf; 1087 1088 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1089 pnpstr); 1090 1091 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1092 "_STR", &buf); 1093 if (ACPI_SUCCESS(rv)) { 1094 ACPI_OBJECT *obj = buf.Pointer; 1095 switch (obj->Type) { 1096 case ACPI_TYPE_STRING: 1097 aprint_normal("[%s] ", obj->String.Pointer); 1098 break; 1099 case ACPI_TYPE_BUFFER: 1100 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1101 break; 1102 default: 1103 aprint_normal("type %u ",obj->Type); 1104 break; 1105 } 1106 ACPI_FREE(buf.Pointer); 1107 } 1108 #ifdef ACPIVERBOSE 1109 else { 1110 int i; 1111 1112 for (i = 0; i < __arraycount(acpi_knowndevs); 1113 i++) { 1114 if (strcmp(acpi_knowndevs[i].pnp, 1115 pnpstr) == 0) { 1116 aprint_normal("[%s] ", 1117 acpi_knowndevs[i].str); 1118 } 1119 } 1120 } 1121 1122 #endif 1123 aprint_normal("at %s", pnp); 1124 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1125 aprint_normal("%s (ACPI Object Type '%s' " 1126 "[0x%02x]) ", aa->aa_node->ad_name, 1127 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1128 aa->aa_node->ad_devinfo->Type); 1129 aprint_normal("at %s", pnp); 1130 } else 1131 return 0; 1132 } else { 1133 aprint_normal(" (%s", aa->aa_node->ad_name); 1134 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1135 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1136 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1137 const char *uid; 1138 1139 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1140 if (uid[0] == '\0') 1141 uid = "<null>"; 1142 aprint_normal("-%s", uid); 1143 } 1144 } 1145 aprint_normal(")"); 1146 } 1147 1148 return UNCONF; 1149 } 1150 1151 /* 1152 * Notify. 1153 */ 1154 static void 1155 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1156 { 1157 struct acpi_softc *sc = acpi_softc; 1158 struct acpi_devnode *ad; 1159 1160 KASSERT(sc != NULL); 1161 KASSERT(aux == NULL); 1162 KASSERT(acpi_active != 0); 1163 1164 if (acpi_suspended != 0) 1165 return; 1166 1167 /* 1168 * System: 0x00 - 0x7F. 1169 * Device: 0x80 - 0xFF. 1170 */ 1171 switch (event) { 1172 1173 case ACPI_NOTIFY_BUS_CHECK: 1174 case ACPI_NOTIFY_DEVICE_CHECK: 1175 case ACPI_NOTIFY_DEVICE_WAKE: 1176 case ACPI_NOTIFY_EJECT_REQUEST: 1177 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1178 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1179 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1180 case ACPI_NOTIFY_POWER_FAULT: 1181 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1182 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1183 case ACPI_NOTIFY_RESERVED: 1184 case ACPI_NOTIFY_LOCALITY_UPDATE: 1185 break; 1186 } 1187 1188 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1189 "%s (%p)\n", event, acpi_name(handle), handle)); 1190 1191 /* 1192 * We deliver notifications only to drivers 1193 * that have been succesfully attached and 1194 * that have registered a handler with us. 1195 * The opaque pointer is always the device_t. 1196 */ 1197 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1198 1199 if (ad->ad_device == NULL) 1200 continue; 1201 1202 if (ad->ad_notify == NULL) 1203 continue; 1204 1205 if (ad->ad_handle != handle) 1206 continue; 1207 1208 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1209 1210 return; 1211 } 1212 1213 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1214 "for %s (%p)\n", event, acpi_name(handle), handle); 1215 } 1216 1217 bool 1218 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1219 { 1220 struct acpi_softc *sc = acpi_softc; 1221 1222 KASSERT(sc != NULL); 1223 KASSERT(acpi_active != 0); 1224 1225 if (acpi_suspended != 0) 1226 goto fail; 1227 1228 if (ad == NULL || notify == NULL) 1229 goto fail; 1230 1231 ad->ad_notify = notify; 1232 1233 return true; 1234 1235 fail: 1236 aprint_error_dev(sc->sc_dev, "failed to register notify " 1237 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1238 1239 return false; 1240 } 1241 1242 void 1243 acpi_deregister_notify(struct acpi_devnode *ad) 1244 { 1245 1246 ad->ad_notify = NULL; 1247 } 1248 1249 /* 1250 * Fixed buttons. 1251 */ 1252 static void 1253 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1254 { 1255 struct sysmon_pswitch *smpsw; 1256 ACPI_STATUS rv; 1257 int type; 1258 1259 switch (event) { 1260 1261 case ACPI_EVENT_POWER_BUTTON: 1262 1263 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1264 return; 1265 1266 type = PSWITCH_TYPE_POWER; 1267 smpsw = &sc->sc_smpsw_power; 1268 break; 1269 1270 case ACPI_EVENT_SLEEP_BUTTON: 1271 1272 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1273 return; 1274 1275 type = PSWITCH_TYPE_SLEEP; 1276 smpsw = &sc->sc_smpsw_sleep; 1277 break; 1278 1279 default: 1280 rv = AE_TYPE; 1281 goto fail; 1282 } 1283 1284 smpsw->smpsw_type = type; 1285 smpsw->smpsw_name = device_xname(sc->sc_dev); 1286 1287 if (sysmon_pswitch_register(smpsw) != 0) { 1288 rv = AE_ERROR; 1289 goto fail; 1290 } 1291 1292 rv = AcpiInstallFixedEventHandler(event, 1293 acpi_fixed_button_handler, smpsw); 1294 1295 if (ACPI_FAILURE(rv)) 1296 goto fail; 1297 1298 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1299 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1300 1301 return; 1302 1303 fail: 1304 aprint_error_dev(sc->sc_dev, "failed to register " 1305 "fixed event: %s\n", AcpiFormatException(rv)); 1306 } 1307 1308 static void 1309 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1310 { 1311 struct sysmon_pswitch *smpsw; 1312 ACPI_STATUS rv; 1313 1314 switch (event) { 1315 1316 case ACPI_EVENT_POWER_BUTTON: 1317 smpsw = &sc->sc_smpsw_power; 1318 1319 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1320 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1321 return; 1322 } 1323 1324 break; 1325 1326 case ACPI_EVENT_SLEEP_BUTTON: 1327 smpsw = &sc->sc_smpsw_sleep; 1328 1329 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1330 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1331 return; 1332 } 1333 1334 break; 1335 1336 default: 1337 rv = AE_TYPE; 1338 goto fail; 1339 } 1340 1341 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1342 1343 if (ACPI_SUCCESS(rv)) { 1344 sysmon_pswitch_unregister(smpsw); 1345 return; 1346 } 1347 1348 fail: 1349 aprint_error_dev(sc->sc_dev, "failed to deregister " 1350 "fixed event: %s\n", AcpiFormatException(rv)); 1351 } 1352 1353 static uint32_t 1354 acpi_fixed_button_handler(void *context) 1355 { 1356 static const int handler = OSL_NOTIFY_HANDLER; 1357 struct sysmon_pswitch *smpsw = context; 1358 1359 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1360 1361 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1362 1363 return ACPI_INTERRUPT_HANDLED; 1364 } 1365 1366 static void 1367 acpi_fixed_button_pressed(void *context) 1368 { 1369 struct sysmon_pswitch *smpsw = context; 1370 1371 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1372 __func__, smpsw->smpsw_name)); 1373 1374 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1375 } 1376 1377 /* 1378 * Sleep. 1379 */ 1380 static void 1381 acpi_sleep_init(struct acpi_softc *sc) 1382 { 1383 uint8_t a, b, i; 1384 ACPI_STATUS rv; 1385 1386 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1387 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1388 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1389 1390 /* 1391 * Evaluate supported sleep states. 1392 */ 1393 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1394 1395 rv = AcpiGetSleepTypeData(i, &a, &b); 1396 1397 if (ACPI_SUCCESS(rv)) 1398 sc->sc_sleepstates |= __BIT(i); 1399 } 1400 } 1401 1402 ACPI_STATUS 1403 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1404 { 1405 ACPI_STATUS rv = AE_OK; 1406 int err; 1407 1408 if (state == sc->sc_sleepstate) 1409 return AE_OK; 1410 1411 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1412 1413 switch (state) { 1414 1415 case ACPI_STATE_S0: 1416 break; 1417 1418 case ACPI_STATE_S1: 1419 case ACPI_STATE_S2: 1420 case ACPI_STATE_S3: 1421 case ACPI_STATE_S4: 1422 1423 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1424 aprint_error_dev(sc->sc_dev, "sleep state " 1425 "S%d is not available\n", state); 1426 break; 1427 } 1428 1429 acpi_wakedev_commit(sc, state); 1430 1431 if (state != ACPI_STATE_S1 && 1432 pmf_system_suspend(PMF_Q_NONE) != true) { 1433 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1434 break; 1435 } 1436 1437 rv = AcpiEnterSleepStatePrep(state); 1438 1439 if (ACPI_FAILURE(rv)) { 1440 aprint_error_dev(sc->sc_dev, "failed to prepare " 1441 "S%d: %s\n", state, AcpiFormatException(rv)); 1442 break; 1443 } 1444 1445 sc->sc_sleepstate = state; 1446 1447 if (state == ACPI_STATE_S1) { 1448 1449 /* Just enter the state. */ 1450 acpi_md_OsDisableInterrupt(); 1451 rv = AcpiEnterSleepState(state); 1452 1453 if (ACPI_FAILURE(rv)) 1454 aprint_error_dev(sc->sc_dev, "failed to " 1455 "enter S1: %s\n", AcpiFormatException(rv)); 1456 1457 (void)AcpiLeaveSleepState(state); 1458 1459 } else { 1460 1461 err = acpi_md_sleep(state); 1462 1463 if (state == ACPI_STATE_S4) 1464 AcpiEnable(); 1465 1466 pmf_system_bus_resume(PMF_Q_NONE); 1467 (void)AcpiLeaveSleepState(state); 1468 pmf_system_resume(PMF_Q_NONE); 1469 } 1470 1471 break; 1472 case ACPI_STATE_S5: 1473 1474 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1475 1476 if (ACPI_FAILURE(rv)) { 1477 aprint_error_dev(sc->sc_dev, "failed to prepare " 1478 "S%d: %s\n", state, AcpiFormatException(rv)); 1479 break; 1480 } 1481 1482 DELAY(1000000); 1483 1484 sc->sc_sleepstate = state; 1485 acpi_md_OsDisableInterrupt(); 1486 1487 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1488 1489 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1490 break; 1491 } 1492 1493 sc->sc_sleepstate = ACPI_STATE_S0; 1494 1495 return rv; 1496 } 1497 1498 /* 1499 * Sysctl. 1500 */ 1501 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1502 { 1503 const struct sysctlnode *mnode, *rnode; 1504 int err; 1505 1506 err = sysctl_createv(clog, 0, NULL, &rnode, 1507 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1508 NULL, NULL, 0, NULL, 0, 1509 CTL_HW, CTL_EOL); 1510 1511 if (err != 0) 1512 return; 1513 1514 err = sysctl_createv(clog, 0, &rnode, &rnode, 1515 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1516 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1517 NULL, 0, NULL, 0, 1518 CTL_CREATE, CTL_EOL); 1519 1520 if (err != 0) 1521 return; 1522 1523 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1524 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1525 "root", SYSCTL_DESCR("ACPI root pointer"), 1526 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1527 CTL_CREATE, CTL_EOL); 1528 1529 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1530 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1531 "supported_states", SYSCTL_DESCR("Supported system states"), 1532 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1533 CTL_CREATE, CTL_EOL); 1534 1535 err = sysctl_createv(NULL, 0, NULL, &mnode, 1536 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1537 NULL, NULL, 0, NULL, 0, 1538 CTL_MACHDEP, CTL_EOL); 1539 1540 if (err == 0) { 1541 1542 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1543 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1544 "sleep_state", SYSCTL_DESCR("System sleep state"), 1545 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1546 CTL_CREATE, CTL_EOL); 1547 } 1548 1549 err = sysctl_createv(clog, 0, &rnode, &rnode, 1550 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1551 "stat", SYSCTL_DESCR("ACPI statistics"), 1552 NULL, 0, NULL, 0, 1553 CTL_CREATE, CTL_EOL); 1554 1555 if (err != 0) 1556 return; 1557 1558 (void)sysctl_createv(clog, 0, &rnode, NULL, 1559 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1560 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1561 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1562 CTL_CREATE, CTL_EOL); 1563 1564 (void)sysctl_createv(clog, 0, &rnode, NULL, 1565 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1566 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1567 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1568 CTL_CREATE, CTL_EOL); 1569 1570 (void)sysctl_createv(clog, 0, &rnode, NULL, 1571 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1572 "fixed", SYSCTL_DESCR("Number of fixed events"), 1573 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1574 CTL_CREATE, CTL_EOL); 1575 1576 (void)sysctl_createv(clog, 0, &rnode, NULL, 1577 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1578 "method", SYSCTL_DESCR("Number of methods executed"), 1579 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1580 CTL_CREATE, CTL_EOL); 1581 1582 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1583 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1584 } 1585 1586 static int 1587 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1588 { 1589 struct sysctlnode node; 1590 uint64_t t; 1591 int err, i; 1592 1593 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1594 t += AcpiFixedEventCount[i]; 1595 1596 node = *rnode; 1597 node.sysctl_data = &t; 1598 1599 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1600 1601 if (err || newp == NULL) 1602 return err; 1603 1604 return 0; 1605 } 1606 1607 static int 1608 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1609 { 1610 struct acpi_softc *sc = acpi_softc; 1611 struct sysctlnode node; 1612 int err, t; 1613 1614 if (acpi_softc == NULL) 1615 return ENOSYS; 1616 1617 node = *rnode; 1618 t = sc->sc_sleepstate; 1619 node.sysctl_data = &t; 1620 1621 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1622 1623 if (err || newp == NULL) 1624 return err; 1625 1626 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1627 return EINVAL; 1628 1629 acpi_enter_sleep_state(sc, t); 1630 1631 return 0; 1632 } 1633 1634 static int 1635 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1636 { 1637 struct acpi_softc *sc = acpi_softc; 1638 struct sysctlnode node; 1639 char t[3 * 6 + 1]; 1640 int err; 1641 1642 if (acpi_softc == NULL) 1643 return ENOSYS; 1644 1645 (void)memset(t, '\0', sizeof(t)); 1646 1647 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1648 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1649 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1650 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1651 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1652 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1653 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1654 1655 node = *rnode; 1656 node.sysctl_data = &t; 1657 1658 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1659 1660 if (err || newp == NULL) 1661 return err; 1662 1663 return 0; 1664 } 1665 1666 /* 1667 * Miscellaneous. 1668 */ 1669 ACPI_PHYSICAL_ADDRESS 1670 acpi_OsGetRootPointer(void) 1671 { 1672 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1673 1674 /* 1675 * We let MD code handle this since there are multiple ways to do it: 1676 * 1677 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1678 * 1679 * IA-64: Use the EFI. 1680 */ 1681 PhysicalAddress = acpi_md_OsGetRootPointer(); 1682 1683 if (acpi_root_pointer == 0) 1684 acpi_root_pointer = PhysicalAddress; 1685 1686 return PhysicalAddress; 1687 } 1688 1689 static ACPI_TABLE_HEADER * 1690 acpi_map_rsdt(void) 1691 { 1692 ACPI_PHYSICAL_ADDRESS paddr; 1693 ACPI_TABLE_RSDP *rsdp; 1694 1695 paddr = AcpiOsGetRootPointer(); 1696 1697 if (paddr == 0) 1698 return NULL; 1699 1700 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1701 1702 if (rsdp == NULL) 1703 return NULL; 1704 1705 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1706 paddr = rsdp->XsdtPhysicalAddress; 1707 else 1708 paddr = rsdp->RsdtPhysicalAddress; 1709 1710 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1711 1712 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1713 } 1714 1715 static void 1716 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1717 { 1718 1719 if (rsdt == NULL) 1720 return; 1721 1722 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1723 } 1724
Indexes created Sun Sep 21 19:09:51 GMT 2025