acpi.c revision 1.182
1 /* $NetBSD: acpi.c,v 1.182 2010/04/22 21:58:08 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 1.182 2010/04/22 21:58:08 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' : 'x', 623 ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) ? 'W' : 'x'); 624 625 if (ad->ad_pciinfo == NULL) 626 aprint_normal("@ xx:xx:xx:xx "); 627 else { 628 aprint_normal("@ 0x%02x:0x%02x:0x%02x:0x%02x ", 629 ad->ad_pciinfo->ap_segment, ad->ad_pciinfo->ap_bus, 630 ad->ad_pciinfo->ap_device, ad->ad_pciinfo->ap_function); 631 632 if ((ad->ad_devinfo->Flags & ACPI_PCI_ROOT_BRIDGE) != 0) 633 aprint_normal("[R] "); 634 635 if (ad->ad_pciinfo->ap_bridge != false) 636 aprint_normal("[B] -> 0x%02X", 637 ad->ad_pciinfo->ap_downbus); 638 } 639 640 aprint_normal("\n\n"); 641 642 SIMPLEQ_FOREACH(child, &ad->ad_child_head, ad_child_list) 643 acpi_print_tree(child, level + 1); 644 } 645 #endif 646 647 static ACPI_STATUS 648 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 649 void *context, void **status) 650 { 651 struct acpi_walkcontext *awc = context; 652 struct acpi_softc *sc = awc->aw_sc; 653 struct acpi_devnode *ad; 654 ACPI_DEVICE_INFO *devinfo; 655 ACPI_OBJECT_TYPE type; 656 ACPI_NAME_UNION *anu; 657 ACPI_STATUS rv; 658 int clear, i; 659 660 rv = AcpiGetObjectInfo(handle, &devinfo); 661 662 if (ACPI_FAILURE(rv)) 663 return AE_OK; /* Do not terminate the walk. */ 664 665 type = devinfo->Type; 666 667 switch (type) { 668 669 case ACPI_TYPE_DEVICE: 670 671 #ifdef ACPI_ACTIVATE_DEV 672 acpi_activate_device(handle, &devinfo); 673 #endif 674 675 case ACPI_TYPE_PROCESSOR: 676 case ACPI_TYPE_THERMAL: 677 case ACPI_TYPE_POWER: 678 679 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 680 681 if (ad == NULL) 682 return AE_NO_MEMORY; 683 684 ad->ad_device = NULL; 685 ad->ad_notify = NULL; 686 ad->ad_pciinfo = NULL; 687 688 ad->ad_type = type; 689 ad->ad_handle = handle; 690 ad->ad_devinfo = devinfo; 691 692 ad->ad_root = sc->sc_dev; 693 ad->ad_parent = awc->aw_parent; 694 695 anu = (ACPI_NAME_UNION *)&devinfo->Name; 696 ad->ad_name[4] = '\0'; 697 698 for (i = 3, clear = 0; i >= 0; i--) { 699 700 if (clear == 0 && anu->Ascii[i] == '_') 701 ad->ad_name[i] = '\0'; 702 else { 703 ad->ad_name[i] = anu->Ascii[i]; 704 clear = 1; 705 } 706 } 707 708 if (ad->ad_name[0] == '\0') 709 ad->ad_name[0] = '_'; 710 711 SIMPLEQ_INIT(&ad->ad_child_head); 712 SIMPLEQ_INSERT_TAIL(&sc->ad_head, ad, ad_list); 713 714 if (ad->ad_parent != NULL) { 715 716 SIMPLEQ_INSERT_TAIL(&ad->ad_parent->ad_child_head, 717 ad, ad_child_list); 718 } 719 720 awc->aw_parent = ad; 721 722 #ifdef ACPIVERBOSE 723 724 if (type != ACPI_TYPE_DEVICE) 725 return AE_OK; 726 727 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 728 729 aprint_normal("HID %-10s ", 730 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 731 devinfo->HardwareId.String: "-"); 732 733 aprint_normal("UID %-4s ", 734 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 735 devinfo->UniqueId.String : "-"); 736 737 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 738 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 739 else 740 aprint_normal("STA %10s ", "-"); 741 742 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 743 aprint_normal("ADR 0x%016" PRIX64"", 744 devinfo->Address); 745 746 aprint_normal("\n"); 747 #endif 748 } 749 750 return AE_OK; 751 } 752 753 static ACPI_STATUS 754 acpi_make_devnode_post(ACPI_HANDLE handle, uint32_t level, 755 void *context, void **status) 756 { 757 struct acpi_walkcontext *awc = context; 758 759 KASSERT(awc != NULL); 760 KASSERT(awc->aw_parent != NULL); 761 762 if (handle == awc->aw_parent->ad_handle) 763 awc->aw_parent = awc->aw_parent->ad_parent; 764 765 return AE_OK; 766 } 767 768 #ifdef ACPI_ACTIVATE_DEV 769 770 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 771 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 772 773 static void 774 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 775 { 776 ACPI_DEVICE_INFO *newdi; 777 ACPI_STATUS rv; 778 uint32_t old; 779 780 /* 781 * If the device is valid and present, 782 * but not enabled, try to activate it. 783 */ 784 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 785 return; 786 787 old = (*di)->CurrentStatus; 788 789 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 790 return; 791 792 rv = acpi_allocate_resources(handle); 793 794 if (ACPI_FAILURE(rv)) 795 goto fail; 796 797 rv = AcpiGetObjectInfo(handle, &newdi); 798 799 if (ACPI_FAILURE(rv)) 800 goto fail; 801 802 ACPI_FREE(*di); 803 *di = newdi; 804 805 aprint_verbose_dev(acpi_softc->sc_dev, 806 "%s activated, STA 0x%08X -> STA 0x%08X\n", 807 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 808 809 return; 810 811 fail: 812 aprint_error_dev(acpi_softc->sc_dev, "failed to " 813 "activate %s\n", (*di)->HardwareId.String); 814 } 815 816 /* 817 * XXX: This very incomplete. 818 */ 819 ACPI_STATUS 820 acpi_allocate_resources(ACPI_HANDLE handle) 821 { 822 ACPI_BUFFER bufp, bufc, bufn; 823 ACPI_RESOURCE *resp, *resc, *resn; 824 ACPI_RESOURCE_IRQ *irq; 825 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 826 ACPI_STATUS rv; 827 uint delta; 828 829 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 830 if (ACPI_FAILURE(rv)) 831 goto out; 832 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 833 if (ACPI_FAILURE(rv)) { 834 goto out1; 835 } 836 837 bufn.Length = 1000; 838 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 839 resp = bufp.Pointer; 840 resc = bufc.Pointer; 841 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 842 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 843 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 844 resp = ACPI_NEXT_RESOURCE(resp); 845 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 846 break; 847 /* Found identical Id */ 848 resn->Type = resc->Type; 849 switch (resc->Type) { 850 case ACPI_RESOURCE_TYPE_IRQ: 851 memcpy(&resn->Data, &resp->Data, 852 sizeof(ACPI_RESOURCE_IRQ)); 853 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 854 irq->Interrupts[0] = 855 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 856 Interrupts[irq->InterruptCount-1]; 857 irq->InterruptCount = 1; 858 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 859 break; 860 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 861 memcpy(&resn->Data, &resp->Data, 862 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 863 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 864 #if 0 865 /* 866 * XXX: Not duplicating the interrupt logic above 867 * because its not clear what it accomplishes. 868 */ 869 xirq->Interrupts[0] = 870 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 871 Interrupts[irq->NumberOfInterrupts-1]; 872 xirq->NumberOfInterrupts = 1; 873 #endif 874 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 875 break; 876 case ACPI_RESOURCE_TYPE_IO: 877 memcpy(&resn->Data, &resp->Data, 878 sizeof(ACPI_RESOURCE_IO)); 879 resn->Length = resp->Length; 880 break; 881 default: 882 aprint_error_dev(acpi_softc->sc_dev, 883 "%s: invalid type %u\n", __func__, resc->Type); 884 rv = AE_BAD_DATA; 885 goto out2; 886 } 887 resc = ACPI_NEXT_RESOURCE(resc); 888 resn = ACPI_NEXT_RESOURCE(resn); 889 resp = ACPI_NEXT_RESOURCE(resp); 890 delta = (uint8_t *)resn - (uint8_t *)bufn.Pointer; 891 if (delta >= 892 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 893 bufn.Length *= 2; 894 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 895 M_ACPI, M_WAITOK); 896 resn = (ACPI_RESOURCE *)((uint8_t *)bufn.Pointer + 897 delta); 898 } 899 } 900 901 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 902 aprint_error_dev(acpi_softc->sc_dev, 903 "%s: resc not exhausted\n", __func__); 904 rv = AE_BAD_DATA; 905 goto out3; 906 } 907 908 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 909 rv = AcpiSetCurrentResources(handle, &bufn); 910 911 if (ACPI_FAILURE(rv)) 912 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 913 "resources: %s\n", __func__, AcpiFormatException(rv)); 914 915 out3: 916 free(bufn.Pointer, M_ACPI); 917 out2: 918 ACPI_FREE(bufc.Pointer); 919 out1: 920 ACPI_FREE(bufp.Pointer); 921 out: 922 return rv; 923 } 924 925 #undef ACPI_DEV_VALID 926 #undef ACPI_DEV_STATUS 927 928 #endif /* ACPI_ACTIVATE_DEV */ 929 930 /* 931 * Device attachment. 932 */ 933 static int 934 acpi_rescan(device_t self, const char *ifattr, const int *locators) 935 { 936 struct acpi_softc *sc = device_private(self); 937 938 acpi_rescan1(sc, ifattr, locators); 939 940 return 0; 941 } 942 943 static void 944 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 945 { 946 947 if (ifattr_match(ifattr, "acpinodebus")) 948 acpi_rescan_nodes(sc); 949 950 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 951 sc->sc_apmbus = config_found_ia(sc->sc_dev, 952 "acpiapmbus", NULL, NULL); 953 } 954 955 static void 956 acpi_rescan_nodes(struct acpi_softc *sc) 957 { 958 struct acpi_attach_args aa; 959 struct acpi_devnode *ad; 960 961 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 962 963 if (ad->ad_device != NULL) 964 continue; 965 966 aa.aa_node = ad; 967 aa.aa_iot = sc->sc_iot; 968 aa.aa_memt = sc->sc_memt; 969 aa.aa_pc = sc->sc_pc; 970 aa.aa_pciflags = sc->sc_pciflags; 971 aa.aa_ic = sc->sc_ic; 972 973 /* 974 * XXX: We only attach devices which are present, enabled, and 975 * functioning properly. However, if a device is enabled, 976 * it is decoding resources and we should claim these, 977 * if possible. This requires changes to bus_space(9). 978 */ 979 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 980 981 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 982 ACPI_VALID_STA && 983 (ad->ad_devinfo->CurrentStatus & 984 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 985 ACPI_STA_DEV_OK)) != 986 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 987 ACPI_STA_DEV_OK)) 988 continue; 989 } 990 991 /* 992 * XXX: The same problem as above. As for example 993 * thermal zones and power resources do not 994 * have a valid HID, only evaluate devices. 995 */ 996 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 997 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 998 continue; 999 1000 /* 1001 * Handled internally. 1002 */ 1003 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR) 1004 continue; 1005 1006 /* 1007 * Ditto, but bind power resources. 1008 */ 1009 if (ad->ad_devinfo->Type == ACPI_TYPE_POWER) { 1010 acpi_power_res_add(ad); 1011 continue; 1012 } 1013 1014 /* 1015 * Skip ignored HIDs. 1016 */ 1017 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 1018 continue; 1019 1020 ad->ad_device = config_found_ia(sc->sc_dev, 1021 "acpinodebus", &aa, acpi_print); 1022 } 1023 } 1024 1025 #define ACPI_STA_DEV_VALID \ 1026 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 1027 1028 static void 1029 acpi_rescan_capabilities(struct acpi_softc *sc) 1030 { 1031 struct acpi_devnode *ad; 1032 ACPI_DEVICE_INFO *di; 1033 ACPI_HANDLE tmp; 1034 ACPI_STATUS rv; 1035 1036 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1037 1038 di = ad->ad_devinfo; 1039 1040 if (di->Type != ACPI_TYPE_DEVICE) 1041 continue; 1042 1043 if ((di->Valid & ACPI_VALID_STA) != 0 && 1044 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 1045 ACPI_STA_DEV_VALID) 1046 continue; 1047 1048 /* 1049 * Scan power resource capabilities. 1050 * 1051 * If any power states are supported, 1052 * at least _PR0 and _PR3 must be present. 1053 */ 1054 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1055 1056 if (ACPI_SUCCESS(rv)) { 1057 ad->ad_flags |= ACPI_DEVICE_POWER; 1058 (void)acpi_power_get(ad, NULL); 1059 } 1060 1061 /* 1062 * Scan wake-up capabilities. 1063 */ 1064 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1065 1066 if (ACPI_SUCCESS(rv)) { 1067 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1068 acpi_wakedev_add(ad); 1069 } 1070 } 1071 } 1072 1073 #undef ACPI_STA_DEV_VALID 1074 1075 static int 1076 acpi_print(void *aux, const char *pnp) 1077 { 1078 struct acpi_attach_args *aa = aux; 1079 ACPI_STATUS rv; 1080 1081 if (pnp) { 1082 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1083 char *pnpstr = 1084 aa->aa_node->ad_devinfo->HardwareId.String; 1085 ACPI_BUFFER buf; 1086 1087 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1088 pnpstr); 1089 1090 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1091 "_STR", &buf); 1092 if (ACPI_SUCCESS(rv)) { 1093 ACPI_OBJECT *obj = buf.Pointer; 1094 switch (obj->Type) { 1095 case ACPI_TYPE_STRING: 1096 aprint_normal("[%s] ", obj->String.Pointer); 1097 break; 1098 case ACPI_TYPE_BUFFER: 1099 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1100 break; 1101 default: 1102 aprint_normal("type %u ",obj->Type); 1103 break; 1104 } 1105 ACPI_FREE(buf.Pointer); 1106 } 1107 #ifdef ACPIVERBOSE 1108 else { 1109 int i; 1110 1111 for (i = 0; i < __arraycount(acpi_knowndevs); 1112 i++) { 1113 if (strcmp(acpi_knowndevs[i].pnp, 1114 pnpstr) == 0) { 1115 aprint_normal("[%s] ", 1116 acpi_knowndevs[i].str); 1117 } 1118 } 1119 } 1120 1121 #endif 1122 aprint_normal("at %s", pnp); 1123 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1124 aprint_normal("%s (ACPI Object Type '%s' " 1125 "[0x%02x]) ", aa->aa_node->ad_name, 1126 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1127 aa->aa_node->ad_devinfo->Type); 1128 aprint_normal("at %s", pnp); 1129 } else 1130 return 0; 1131 } else { 1132 aprint_normal(" (%s", aa->aa_node->ad_name); 1133 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1134 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1135 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1136 const char *uid; 1137 1138 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1139 if (uid[0] == '\0') 1140 uid = "<null>"; 1141 aprint_normal("-%s", uid); 1142 } 1143 } 1144 aprint_normal(")"); 1145 } 1146 1147 return UNCONF; 1148 } 1149 1150 /* 1151 * Notify. 1152 */ 1153 static void 1154 acpi_notify_handler(ACPI_HANDLE handle, uint32_t event, void *aux) 1155 { 1156 struct acpi_softc *sc = acpi_softc; 1157 struct acpi_devnode *ad; 1158 1159 KASSERT(sc != NULL); 1160 KASSERT(aux == NULL); 1161 KASSERT(acpi_active != 0); 1162 1163 if (acpi_suspended != 0) 1164 return; 1165 1166 /* 1167 * System: 0x00 - 0x7F. 1168 * Device: 0x80 - 0xFF. 1169 */ 1170 switch (event) { 1171 1172 case ACPI_NOTIFY_BUS_CHECK: 1173 case ACPI_NOTIFY_DEVICE_CHECK: 1174 case ACPI_NOTIFY_DEVICE_WAKE: 1175 case ACPI_NOTIFY_EJECT_REQUEST: 1176 case ACPI_NOTIFY_DEVICE_CHECK_LIGHT: 1177 case ACPI_NOTIFY_FREQUENCY_MISMATCH: 1178 case ACPI_NOTIFY_BUS_MODE_MISMATCH: 1179 case ACPI_NOTIFY_POWER_FAULT: 1180 case ACPI_NOTIFY_CAPABILITIES_CHECK: 1181 case ACPI_NOTIFY_DEVICE_PLD_CHECK: 1182 case ACPI_NOTIFY_RESERVED: 1183 case ACPI_NOTIFY_LOCALITY_UPDATE: 1184 break; 1185 } 1186 1187 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "notification 0x%02X for " 1188 "%s (%p)\n", event, acpi_name(handle), handle)); 1189 1190 /* 1191 * We deliver notifications only to drivers 1192 * that have been succesfully attached and 1193 * that have registered a handler with us. 1194 * The opaque pointer is always the device_t. 1195 */ 1196 SIMPLEQ_FOREACH(ad, &sc->ad_head, ad_list) { 1197 1198 if (ad->ad_device == NULL) 1199 continue; 1200 1201 if (ad->ad_notify == NULL) 1202 continue; 1203 1204 if (ad->ad_handle != handle) 1205 continue; 1206 1207 (*ad->ad_notify)(ad->ad_handle, event, ad->ad_device); 1208 1209 return; 1210 } 1211 1212 aprint_debug_dev(sc->sc_dev, "unhandled notify 0x%02X " 1213 "for %s (%p)\n", event, acpi_name(handle), handle); 1214 } 1215 1216 bool 1217 acpi_register_notify(struct acpi_devnode *ad, ACPI_NOTIFY_HANDLER notify) 1218 { 1219 struct acpi_softc *sc = acpi_softc; 1220 1221 KASSERT(sc != NULL); 1222 KASSERT(acpi_active != 0); 1223 1224 if (acpi_suspended != 0) 1225 goto fail; 1226 1227 if (ad == NULL || notify == NULL) 1228 goto fail; 1229 1230 ad->ad_notify = notify; 1231 1232 return true; 1233 1234 fail: 1235 aprint_error_dev(sc->sc_dev, "failed to register notify " 1236 "handler for %s (%p)\n", ad->ad_name, ad->ad_handle); 1237 1238 return false; 1239 } 1240 1241 void 1242 acpi_deregister_notify(struct acpi_devnode *ad) 1243 { 1244 1245 ad->ad_notify = NULL; 1246 } 1247 1248 /* 1249 * Fixed buttons. 1250 */ 1251 static void 1252 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1253 { 1254 struct sysmon_pswitch *smpsw; 1255 ACPI_STATUS rv; 1256 int type; 1257 1258 switch (event) { 1259 1260 case ACPI_EVENT_POWER_BUTTON: 1261 1262 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1263 return; 1264 1265 type = PSWITCH_TYPE_POWER; 1266 smpsw = &sc->sc_smpsw_power; 1267 break; 1268 1269 case ACPI_EVENT_SLEEP_BUTTON: 1270 1271 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1272 return; 1273 1274 type = PSWITCH_TYPE_SLEEP; 1275 smpsw = &sc->sc_smpsw_sleep; 1276 break; 1277 1278 default: 1279 rv = AE_TYPE; 1280 goto fail; 1281 } 1282 1283 smpsw->smpsw_type = type; 1284 smpsw->smpsw_name = device_xname(sc->sc_dev); 1285 1286 if (sysmon_pswitch_register(smpsw) != 0) { 1287 rv = AE_ERROR; 1288 goto fail; 1289 } 1290 1291 rv = AcpiInstallFixedEventHandler(event, 1292 acpi_fixed_button_handler, smpsw); 1293 1294 if (ACPI_FAILURE(rv)) 1295 goto fail; 1296 1297 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1298 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1299 1300 return; 1301 1302 fail: 1303 aprint_error_dev(sc->sc_dev, "failed to register " 1304 "fixed event: %s\n", AcpiFormatException(rv)); 1305 } 1306 1307 static void 1308 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1309 { 1310 struct sysmon_pswitch *smpsw; 1311 ACPI_STATUS rv; 1312 1313 switch (event) { 1314 1315 case ACPI_EVENT_POWER_BUTTON: 1316 smpsw = &sc->sc_smpsw_power; 1317 1318 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1319 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1320 return; 1321 } 1322 1323 break; 1324 1325 case ACPI_EVENT_SLEEP_BUTTON: 1326 smpsw = &sc->sc_smpsw_sleep; 1327 1328 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1329 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1330 return; 1331 } 1332 1333 break; 1334 1335 default: 1336 rv = AE_TYPE; 1337 goto fail; 1338 } 1339 1340 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1341 1342 if (ACPI_SUCCESS(rv)) { 1343 sysmon_pswitch_unregister(smpsw); 1344 return; 1345 } 1346 1347 fail: 1348 aprint_error_dev(sc->sc_dev, "failed to deregister " 1349 "fixed event: %s\n", AcpiFormatException(rv)); 1350 } 1351 1352 static uint32_t 1353 acpi_fixed_button_handler(void *context) 1354 { 1355 static const int handler = OSL_NOTIFY_HANDLER; 1356 struct sysmon_pswitch *smpsw = context; 1357 1358 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1359 1360 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1361 1362 return ACPI_INTERRUPT_HANDLED; 1363 } 1364 1365 static void 1366 acpi_fixed_button_pressed(void *context) 1367 { 1368 struct sysmon_pswitch *smpsw = context; 1369 1370 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1371 __func__, smpsw->smpsw_name)); 1372 1373 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1374 } 1375 1376 /* 1377 * Sleep. 1378 */ 1379 static void 1380 acpi_sleep_init(struct acpi_softc *sc) 1381 { 1382 uint8_t a, b, i; 1383 ACPI_STATUS rv; 1384 1385 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1386 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1387 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1388 1389 /* 1390 * Evaluate supported sleep states. 1391 */ 1392 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1393 1394 rv = AcpiGetSleepTypeData(i, &a, &b); 1395 1396 if (ACPI_SUCCESS(rv)) 1397 sc->sc_sleepstates |= __BIT(i); 1398 } 1399 } 1400 1401 ACPI_STATUS 1402 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1403 { 1404 ACPI_STATUS rv = AE_OK; 1405 int err; 1406 1407 if (state == sc->sc_sleepstate) 1408 return AE_OK; 1409 1410 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1411 1412 switch (state) { 1413 1414 case ACPI_STATE_S0: 1415 break; 1416 1417 case ACPI_STATE_S1: 1418 case ACPI_STATE_S2: 1419 case ACPI_STATE_S3: 1420 case ACPI_STATE_S4: 1421 1422 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1423 aprint_error_dev(sc->sc_dev, "sleep state " 1424 "S%d is not available\n", state); 1425 break; 1426 } 1427 1428 acpi_wakedev_commit(sc, state); 1429 1430 if (state != ACPI_STATE_S1 && 1431 pmf_system_suspend(PMF_Q_NONE) != true) { 1432 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1433 break; 1434 } 1435 1436 rv = AcpiEnterSleepStatePrep(state); 1437 1438 if (ACPI_FAILURE(rv)) { 1439 aprint_error_dev(sc->sc_dev, "failed to prepare " 1440 "S%d: %s\n", state, AcpiFormatException(rv)); 1441 break; 1442 } 1443 1444 sc->sc_sleepstate = state; 1445 1446 if (state == ACPI_STATE_S1) { 1447 1448 /* Just enter the state. */ 1449 acpi_md_OsDisableInterrupt(); 1450 rv = AcpiEnterSleepState(state); 1451 1452 if (ACPI_FAILURE(rv)) 1453 aprint_error_dev(sc->sc_dev, "failed to " 1454 "enter S1: %s\n", AcpiFormatException(rv)); 1455 1456 (void)AcpiLeaveSleepState(state); 1457 1458 } else { 1459 1460 err = acpi_md_sleep(state); 1461 1462 if (state == ACPI_STATE_S4) 1463 AcpiEnable(); 1464 1465 pmf_system_bus_resume(PMF_Q_NONE); 1466 (void)AcpiLeaveSleepState(state); 1467 pmf_system_resume(PMF_Q_NONE); 1468 } 1469 1470 break; 1471 case ACPI_STATE_S5: 1472 1473 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1474 1475 if (ACPI_FAILURE(rv)) { 1476 aprint_error_dev(sc->sc_dev, "failed to prepare " 1477 "S%d: %s\n", state, AcpiFormatException(rv)); 1478 break; 1479 } 1480 1481 DELAY(1000000); 1482 1483 sc->sc_sleepstate = state; 1484 acpi_md_OsDisableInterrupt(); 1485 1486 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1487 1488 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1489 break; 1490 } 1491 1492 sc->sc_sleepstate = ACPI_STATE_S0; 1493 1494 return rv; 1495 } 1496 1497 /* 1498 * Sysctl. 1499 */ 1500 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1501 { 1502 const struct sysctlnode *mnode, *rnode; 1503 int err; 1504 1505 err = sysctl_createv(clog, 0, NULL, &rnode, 1506 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1507 NULL, NULL, 0, NULL, 0, 1508 CTL_HW, CTL_EOL); 1509 1510 if (err != 0) 1511 return; 1512 1513 err = sysctl_createv(clog, 0, &rnode, &rnode, 1514 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1515 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1516 NULL, 0, NULL, 0, 1517 CTL_CREATE, CTL_EOL); 1518 1519 if (err != 0) 1520 return; 1521 1522 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1523 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1524 "root", SYSCTL_DESCR("ACPI root pointer"), 1525 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1526 CTL_CREATE, CTL_EOL); 1527 1528 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1529 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1530 "supported_states", SYSCTL_DESCR("Supported system states"), 1531 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1532 CTL_CREATE, CTL_EOL); 1533 1534 err = sysctl_createv(NULL, 0, NULL, &mnode, 1535 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1536 NULL, NULL, 0, NULL, 0, 1537 CTL_MACHDEP, CTL_EOL); 1538 1539 if (err == 0) { 1540 1541 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1542 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1543 "sleep_state", SYSCTL_DESCR("System sleep state"), 1544 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1545 CTL_CREATE, CTL_EOL); 1546 } 1547 1548 err = sysctl_createv(clog, 0, &rnode, &rnode, 1549 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1550 "stat", SYSCTL_DESCR("ACPI statistics"), 1551 NULL, 0, NULL, 0, 1552 CTL_CREATE, CTL_EOL); 1553 1554 if (err != 0) 1555 return; 1556 1557 (void)sysctl_createv(clog, 0, &rnode, NULL, 1558 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1559 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1560 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1561 CTL_CREATE, CTL_EOL); 1562 1563 (void)sysctl_createv(clog, 0, &rnode, NULL, 1564 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1565 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1566 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1567 CTL_CREATE, CTL_EOL); 1568 1569 (void)sysctl_createv(clog, 0, &rnode, NULL, 1570 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1571 "fixed", SYSCTL_DESCR("Number of fixed events"), 1572 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1573 CTL_CREATE, CTL_EOL); 1574 1575 (void)sysctl_createv(clog, 0, &rnode, NULL, 1576 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1577 "method", SYSCTL_DESCR("Number of methods executed"), 1578 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1579 CTL_CREATE, CTL_EOL); 1580 1581 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1582 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1583 } 1584 1585 static int 1586 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1587 { 1588 struct sysctlnode node; 1589 uint64_t t; 1590 int err, i; 1591 1592 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1593 t += AcpiFixedEventCount[i]; 1594 1595 node = *rnode; 1596 node.sysctl_data = &t; 1597 1598 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1599 1600 if (err || newp == NULL) 1601 return err; 1602 1603 return 0; 1604 } 1605 1606 static int 1607 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1608 { 1609 struct acpi_softc *sc = acpi_softc; 1610 struct sysctlnode node; 1611 int err, t; 1612 1613 if (acpi_softc == NULL) 1614 return ENOSYS; 1615 1616 node = *rnode; 1617 t = sc->sc_sleepstate; 1618 node.sysctl_data = &t; 1619 1620 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1621 1622 if (err || newp == NULL) 1623 return err; 1624 1625 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1626 return EINVAL; 1627 1628 acpi_enter_sleep_state(sc, t); 1629 1630 return 0; 1631 } 1632 1633 static int 1634 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1635 { 1636 struct acpi_softc *sc = acpi_softc; 1637 struct sysctlnode node; 1638 char t[3 * 6 + 1]; 1639 int err; 1640 1641 if (acpi_softc == NULL) 1642 return ENOSYS; 1643 1644 (void)memset(t, '\0', sizeof(t)); 1645 1646 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1647 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1648 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1649 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1650 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1651 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1652 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1653 1654 node = *rnode; 1655 node.sysctl_data = &t; 1656 1657 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1658 1659 if (err || newp == NULL) 1660 return err; 1661 1662 return 0; 1663 } 1664 1665 /* 1666 * Miscellaneous. 1667 */ 1668 ACPI_PHYSICAL_ADDRESS 1669 acpi_OsGetRootPointer(void) 1670 { 1671 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1672 1673 /* 1674 * We let MD code handle this since there are multiple ways to do it: 1675 * 1676 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1677 * 1678 * IA-64: Use the EFI. 1679 */ 1680 PhysicalAddress = acpi_md_OsGetRootPointer(); 1681 1682 if (acpi_root_pointer == 0) 1683 acpi_root_pointer = PhysicalAddress; 1684 1685 return PhysicalAddress; 1686 } 1687 1688 static ACPI_TABLE_HEADER * 1689 acpi_map_rsdt(void) 1690 { 1691 ACPI_PHYSICAL_ADDRESS paddr; 1692 ACPI_TABLE_RSDP *rsdp; 1693 1694 paddr = AcpiOsGetRootPointer(); 1695 1696 if (paddr == 0) 1697 return NULL; 1698 1699 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1700 1701 if (rsdp == NULL) 1702 return NULL; 1703 1704 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1705 paddr = rsdp->XsdtPhysicalAddress; 1706 else 1707 paddr = rsdp->RsdtPhysicalAddress; 1708 1709 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1710 1711 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1712 } 1713 1714 static void 1715 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1716 { 1717 1718 if (rsdt == NULL) 1719 return; 1720 1721 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1722 } 1723
Indexes created Wed Sep 24 05:09:52 GMT 2025