acpi.c revision 1.169
1 /* $NetBSD: acpi.c,v 1.169 2010/04/14 17:12:14 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 1.169 2010/04/14 17:12:14 jruoho Exp $"); 69 70 #include "opt_acpi.h" 71 #include "opt_pcifixup.h" 72 73 #include <sys/param.h> 74 #include <sys/device.h> 75 #include <sys/kernel.h> 76 #include <sys/malloc.h> 77 #include <sys/mutex.h> 78 #include <sys/sysctl.h> 79 #include <sys/systm.h> 80 81 #include <dev/acpi/acpireg.h> 82 #include <dev/acpi/acpivar.h> 83 #include <dev/acpi/acpi_osd.h> 84 #include <dev/acpi/acpi_pci.h> 85 #include <dev/acpi/acpi_timer.h> 86 #include <dev/acpi/acpi_wakedev.h> 87 88 #ifdef ACPIVERBOSE 89 #include <dev/acpi/acpidevs_data.h> 90 #endif 91 92 #define _COMPONENT ACPI_BUS_COMPONENT 93 ACPI_MODULE_NAME ("acpi") 94 95 #if defined(ACPI_PCI_FIXUP) 96 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 97 #endif 98 99 #ifdef PCI_INTR_FIXUP_DISABLED 100 #include <dev/pci/pcidevs.h> 101 #endif 102 103 MALLOC_DECLARE(M_ACPI); 104 105 #include <machine/acpi_machdep.h> 106 107 #ifdef ACPI_DEBUGGER 108 #define ACPI_DBGR_INIT 0x01 109 #define ACPI_DBGR_TABLES 0x02 110 #define ACPI_DBGR_ENABLE 0x04 111 #define ACPI_DBGR_PROBE 0x08 112 #define ACPI_DBGR_RUNNING 0x10 113 114 static int acpi_dbgr = 0x00; 115 #endif 116 117 static ACPI_TABLE_DESC acpi_initial_tables[128]; 118 119 /* 120 * This is a flag we set when the ACPI subsystem is active. Machine 121 * dependent code may wish to skip other steps (such as attaching 122 * subsystems that ACPI supercedes) when ACPI is active. 123 */ 124 int acpi_active; 125 int acpi_force_load; 126 int acpi_suspended = 0; 127 128 struct acpi_softc *acpi_softc; 129 static uint64_t acpi_root_pointer; 130 extern kmutex_t acpi_interrupt_list_mtx; 131 132 /* 133 * Ignored HIDs. 134 */ 135 static const char * const acpi_ignored_ids[] = { 136 #if defined(i386) || defined(x86_64) 137 "PNP0000", /* AT interrupt controller is handled internally */ 138 "PNP0200", /* AT DMA controller is handled internally */ 139 "PNP0A??", /* PCI Busses are handled internally */ 140 "PNP0B00", /* AT RTC is handled internally */ 141 "PNP0C01", /* No "System Board" driver */ 142 "PNP0C02", /* No "PnP motherboard register resources" driver */ 143 "PNP0C0B", /* No need for "ACPI fan" driver */ 144 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 145 "IFX0102", /* No driver for Infineon TPM */ 146 "INT0800", /* No driver for Intel Firmware Hub device */ 147 #endif 148 #if defined(x86_64) 149 "PNP0C04", /* FPU is handled internally */ 150 #endif 151 NULL 152 }; 153 154 static int acpi_match(device_t, cfdata_t, void *); 155 static int acpi_submatch(device_t, cfdata_t, const int *, void *); 156 static void acpi_attach(device_t, device_t, void *); 157 static int acpi_detach(device_t, int); 158 static void acpi_childdet(device_t, device_t); 159 static bool acpi_suspend(device_t, const pmf_qual_t *); 160 static bool acpi_resume(device_t, const pmf_qual_t *); 161 162 static void acpi_build_tree(struct acpi_softc *); 163 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 164 void *, void **); 165 166 #ifdef ACPI_ACTIVATE_DEV 167 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 168 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 169 #endif 170 171 static int acpi_rescan(device_t, const char *, const int *); 172 static void acpi_rescan1(struct acpi_softc *, 173 const char *, const int *); 174 static void acpi_rescan_nodes(struct acpi_softc *); 175 static void acpi_rescan_capabilities(struct acpi_softc *); 176 static int acpi_print(void *aux, const char *); 177 178 static void acpi_register_fixed_button(struct acpi_softc *, int); 179 static void acpi_deregister_fixed_button(struct acpi_softc *, int); 180 static uint32_t acpi_fixed_button_handler(void *); 181 static void acpi_fixed_button_pressed(void *); 182 183 static void acpi_sleep_init(struct acpi_softc *); 184 185 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS); 186 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 187 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS); 188 189 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 190 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 191 192 extern struct cfdriver acpi_cd; 193 194 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 195 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 196 197 /* 198 * Probe for ACPI support. 199 * 200 * This is called by the machine-dependent ACPI front-end. 201 * Note: this is not an autoconfiguration interface function. 202 */ 203 int 204 acpi_probe(void) 205 { 206 ACPI_TABLE_HEADER *rsdt; 207 ACPI_STATUS rv; 208 static int once; 209 210 if (once != 0) 211 panic("%s: already probed", __func__); 212 213 once = 1; 214 215 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 216 217 /* 218 * Start up ACPICA. 219 */ 220 #ifdef ACPI_DEBUGGER 221 if (acpi_dbgr & ACPI_DBGR_INIT) 222 acpi_osd_debugger(); 223 #endif 224 225 AcpiGbl_AllMethodsSerialized = FALSE; 226 AcpiGbl_EnableInterpreterSlack = TRUE; 227 228 rv = AcpiInitializeSubsystem(); 229 if (ACPI_FAILURE(rv)) { 230 printf("ACPI: unable to initialize ACPICA: %s\n", 231 AcpiFormatException(rv)); 232 return 0; 233 } 234 235 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 236 if (ACPI_FAILURE(rv)) { 237 #ifdef ACPI_DEBUG 238 printf("ACPI: unable to initialize ACPI tables: %s\n", 239 AcpiFormatException(rv)); 240 #endif 241 AcpiTerminate(); 242 return 0; 243 } 244 245 rv = AcpiReallocateRootTable(); 246 if (ACPI_FAILURE(rv)) { 247 printf("ACPI: unable to reallocate root table: %s\n", 248 AcpiFormatException(rv)); 249 AcpiTerminate(); 250 return 0; 251 } 252 253 #ifdef ACPI_DEBUGGER 254 if (acpi_dbgr & ACPI_DBGR_TABLES) 255 acpi_osd_debugger(); 256 #endif 257 258 rv = AcpiLoadTables(); 259 if (ACPI_FAILURE(rv)) { 260 printf("ACPI: unable to load tables: %s\n", 261 AcpiFormatException(rv)); 262 AcpiTerminate(); 263 return 0; 264 } 265 266 rsdt = acpi_map_rsdt(); 267 if (rsdt == NULL) { 268 printf("ACPI: unable to map RSDT\n"); 269 AcpiTerminate(); 270 return 0; 271 } 272 273 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 274 printf("ACPI: BIOS implementation in listed as broken:\n"); 275 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 276 "AslId <%4.4s,%08x>\n", 277 rsdt->OemId, rsdt->OemTableId, 278 rsdt->OemRevision, 279 rsdt->AslCompilerId, 280 rsdt->AslCompilerRevision); 281 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 282 acpi_unmap_rsdt(rsdt); 283 AcpiTerminate(); 284 return 0; 285 } 286 287 acpi_unmap_rsdt(rsdt); 288 289 #if notyet 290 /* 291 * Install the default address space handlers. 292 */ 293 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 294 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 295 if (ACPI_FAILURE(rv)) { 296 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 297 AcpiFormatException(rv)); 298 AcpiTerminate(); 299 return 0; 300 } 301 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 302 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 303 if (ACPI_FAILURE(rv)) { 304 printf("ACPI: unable to initialize SystemIO handler: %s\n", 305 AcpiFormatException(rv)); 306 AcpiTerminate(); 307 return 0; 308 } 309 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 310 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 311 if (ACPI_FAILURE(rv)) { 312 printf("ACPI: unable to initialize PciConfig handler: %s\n", 313 AcpiFormatException(rv)); 314 AcpiTerminate(); 315 return 0; 316 } 317 #endif 318 319 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 320 if (ACPI_FAILURE(rv)) { 321 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 322 AcpiTerminate(); 323 return 0; 324 } 325 326 /* 327 * Looks like we have ACPI! 328 */ 329 return 1; 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 static int 339 acpi_match(device_t parent, cfdata_t match, void *aux) 340 { 341 /* 342 * XXX: Nada; MD code has called acpi_probe(). 343 */ 344 return 1; 345 } 346 347 static int 348 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 349 { 350 struct cfattach *ca; 351 352 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 353 354 return (ca == &acpi_ca); 355 } 356 357 static void 358 acpi_attach(device_t parent, device_t self, void *aux) 359 { 360 struct acpi_softc *sc = device_private(self); 361 struct acpibus_attach_args *aa = aux; 362 ACPI_TABLE_HEADER *rsdt; 363 ACPI_STATUS rv; 364 365 aprint_naive("\n"); 366 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 367 368 if (acpi_softc != NULL) 369 panic("acpi_attach: ACPI has already been attached"); 370 371 sysmon_power_settype("acpi"); 372 373 rsdt = acpi_map_rsdt(); 374 if (rsdt) { 375 aprint_verbose_dev( 376 self, 377 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 378 rsdt->OemId, rsdt->OemTableId, 379 rsdt->OemRevision, 380 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 381 } else 382 aprint_error_dev(self, "X/RSDT: Not found\n"); 383 384 acpi_unmap_rsdt(rsdt); 385 386 sc->sc_dev = self; 387 sc->sc_quirks = acpi_find_quirks(); 388 sc->sc_sleepstate = ACPI_STATE_S0; 389 390 sc->sc_iot = aa->aa_iot; 391 sc->sc_memt = aa->aa_memt; 392 sc->sc_pc = aa->aa_pc; 393 sc->sc_pciflags = aa->aa_pciflags; 394 sc->sc_ic = aa->aa_ic; 395 396 SIMPLEQ_INIT(&sc->sc_devnodes); 397 398 acpi_softc = sc; 399 400 /* 401 * Register null power management handler. 402 */ 403 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 404 aprint_error_dev(self, "couldn't establish power handler\n"); 405 406 /* 407 * Bring ACPI on-line. 408 */ 409 #ifdef ACPI_DEBUGGER 410 if (acpi_dbgr & ACPI_DBGR_ENABLE) 411 acpi_osd_debugger(); 412 #endif 413 414 #define ACPI_ENABLE_PHASE1 \ 415 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 416 #define ACPI_ENABLE_PHASE2 \ 417 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 418 ACPI_NO_ADDRESS_SPACE_INIT) 419 420 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 421 if (ACPI_FAILURE(rv)) { 422 aprint_error_dev(self, "unable to enable ACPI: %s\n", 423 AcpiFormatException(rv)); 424 return; 425 } 426 427 acpi_md_callback(); 428 429 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 430 if (ACPI_FAILURE(rv)) { 431 aprint_error_dev(self, "unable to enable ACPI: %s\n", 432 AcpiFormatException(rv)); 433 return; 434 } 435 436 /* Early EC handler initialization if ECDT table is available. */ 437 config_found_ia(self, "acpiecdtbus", aa, NULL); 438 439 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 440 if (ACPI_FAILURE(rv)) { 441 aprint_error_dev(self, 442 "unable to initialize ACPI objects: %s\n", 443 AcpiFormatException(rv)); 444 return; 445 } 446 acpi_active = 1; 447 448 /* Our current state is "awake". */ 449 sc->sc_sleepstate = ACPI_STATE_S0; 450 451 /* Show SCI interrupt. */ 452 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 453 AcpiGbl_FADT.SciInterrupt); 454 455 /* 456 * Install fixed-event handlers. 457 */ 458 acpi_register_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 459 acpi_register_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 460 461 acpitimer_init(); 462 463 #ifdef ACPI_DEBUGGER 464 if (acpi_dbgr & ACPI_DBGR_PROBE) 465 acpi_osd_debugger(); 466 #endif 467 468 /* 469 * Scan the namespace and build our device tree. 470 */ 471 acpi_build_tree(sc); 472 acpi_sleep_init(sc); 473 474 #ifdef ACPI_DEBUGGER 475 if (acpi_dbgr & ACPI_DBGR_RUNNING) 476 acpi_osd_debugger(); 477 #endif 478 479 #ifdef ACPI_DEBUG 480 acpi_debug_init(); 481 #endif 482 } 483 484 static int 485 acpi_detach(device_t self, int flags) 486 { 487 struct acpi_softc *sc = device_private(self); 488 int rc; 489 490 #ifdef ACPI_DEBUGGER 491 if (acpi_dbgr & ACPI_DBGR_RUNNING) 492 acpi_osd_debugger(); 493 #endif 494 495 if ((rc = config_detach_children(self, flags)) != 0) 496 return rc; 497 498 #ifdef ACPI_DEBUGGER 499 if (acpi_dbgr & ACPI_DBGR_PROBE) 500 acpi_osd_debugger(); 501 #endif 502 503 if ((rc = acpitimer_detach()) != 0) 504 return rc; 505 506 #if 0 507 /* 508 * Bring ACPI on-line. 509 */ 510 #ifdef ACPI_DEBUGGER 511 if (acpi_dbgr & ACPI_DBGR_ENABLE) 512 acpi_osd_debugger(); 513 #endif 514 515 #define ACPI_ENABLE_PHASE1 \ 516 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 517 #define ACPI_ENABLE_PHASE2 \ 518 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 519 ACPI_NO_ADDRESS_SPACE_INIT) 520 521 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 522 if (ACPI_FAILURE(rv)) { 523 aprint_error_dev(self, "unable to enable ACPI: %s\n", 524 AcpiFormatException(rv)); 525 return; 526 } 527 528 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 529 if (ACPI_FAILURE(rv)) { 530 aprint_error_dev(self, "unable to enable ACPI: %s\n", 531 AcpiFormatException(rv)); 532 return; 533 } 534 535 /* Early EC handler initialization if ECDT table is available. */ 536 config_found_ia(self, "acpiecdtbus", aa, NULL); 537 538 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 539 if (ACPI_FAILURE(rv)) { 540 aprint_error_dev(self, 541 "unable to initialize ACPI objects: %s\n", 542 AcpiFormatException(rv)); 543 return; 544 } 545 546 acpi_active = 1; 547 #endif 548 549 acpi_deregister_fixed_button(sc, ACPI_EVENT_POWER_BUTTON); 550 acpi_deregister_fixed_button(sc, ACPI_EVENT_SLEEP_BUTTON); 551 552 pmf_device_deregister(self); 553 554 #if 0 555 sysmon_power_settype("acpi"); 556 #endif 557 acpi_softc = NULL; 558 559 return 0; 560 } 561 562 /* 563 * XXX: Need to reclaim any resources? Yes. 564 */ 565 static void 566 acpi_childdet(device_t self, device_t child) 567 { 568 struct acpi_softc *sc = device_private(self); 569 struct acpi_devnode *ad; 570 571 if (sc->sc_apmbus == child) 572 sc->sc_apmbus = NULL; 573 574 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 575 576 if (ad->ad_device == child) 577 ad->ad_device = NULL; 578 } 579 } 580 581 static bool 582 acpi_suspend(device_t dv, const pmf_qual_t *qual) 583 { 584 585 acpi_suspended = 1; 586 587 return true; 588 } 589 590 static bool 591 acpi_resume(device_t dv, const pmf_qual_t *qual) 592 { 593 594 acpi_suspended = 0; 595 596 return true; 597 } 598 599 #if 0 600 /* 601 * acpi_disable: 602 * 603 * Disable ACPI. 604 */ 605 static ACPI_STATUS 606 acpi_disable(struct acpi_softc *sc) 607 { 608 ACPI_STATUS rv = AE_OK; 609 610 if (acpi_active) { 611 rv = AcpiDisable(); 612 if (ACPI_SUCCESS(rv)) 613 acpi_active = 0; 614 } 615 return rv; 616 } 617 #endif 618 619 /* 620 * Namespace scan. 621 */ 622 static void 623 acpi_build_tree(struct acpi_softc *sc) 624 { 625 626 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 627 UINT32_MAX, acpi_make_devnode, NULL, sc, NULL); 628 629 acpi_rescan1(sc, NULL, NULL); 630 acpi_rescan_capabilities(sc); 631 632 acpi_pcidev_scan(sc); 633 } 634 635 static ACPI_STATUS 636 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 637 void *context, void **status) 638 { 639 struct acpi_softc *sc = context; 640 struct acpi_devnode *ad; 641 ACPI_DEVICE_INFO *devinfo; 642 ACPI_OBJECT_TYPE type; 643 ACPI_NAME_UNION *anu; 644 ACPI_STATUS rv; 645 int clear, i; 646 647 rv = AcpiGetObjectInfo(handle, &devinfo); 648 649 if (ACPI_FAILURE(rv)) 650 return AE_OK; /* Do not terminate the walk. */ 651 652 type = devinfo->Type; 653 654 switch (type) { 655 656 case ACPI_TYPE_DEVICE: 657 658 #ifdef ACPI_ACTIVATE_DEV 659 acpi_activate_device(handle, &devinfo); 660 #endif 661 662 case ACPI_TYPE_PROCESSOR: 663 case ACPI_TYPE_THERMAL: 664 case ACPI_TYPE_POWER: 665 666 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 667 668 if (ad == NULL) 669 return AE_NO_MEMORY; 670 671 ad->ad_parent = sc->sc_dev; 672 ad->ad_devinfo = devinfo; 673 ad->ad_handle = handle; 674 ad->ad_type = type; 675 676 anu = (ACPI_NAME_UNION *)&devinfo->Name; 677 ad->ad_name[4] = '\0'; 678 679 for (i = 3, clear = 0; i >= 0; i--) { 680 681 if (clear == 0 && anu->Ascii[i] == '_') 682 ad->ad_name[i] = '\0'; 683 else { 684 ad->ad_name[i] = anu->Ascii[i]; 685 clear = 1; 686 } 687 } 688 689 if (ad->ad_name[0] == '\0') 690 ad->ad_name[0] = '_'; 691 692 SIMPLEQ_INSERT_TAIL(&sc->sc_devnodes, ad, ad_list); 693 694 #ifdef ACPIVERBOSE 695 696 if (type != ACPI_TYPE_DEVICE) 697 return AE_OK; 698 699 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 700 701 aprint_normal("HID %-10s ", 702 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 703 devinfo->HardwareId.String: "-"); 704 705 aprint_normal("UID %-4s ", 706 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 707 devinfo->UniqueId.String : "-"); 708 709 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 710 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 711 else 712 aprint_normal("STA %10s ", "-"); 713 714 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 715 aprint_normal("ADR 0x%016" PRIX64"", 716 devinfo->Address); 717 718 aprint_normal("\n"); 719 #endif 720 } 721 722 return AE_OK; 723 } 724 725 #ifdef ACPI_ACTIVATE_DEV 726 727 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 728 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 729 730 static void 731 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 732 { 733 ACPI_DEVICE_INFO *newdi; 734 ACPI_STATUS rv; 735 uint32_t old; 736 737 /* 738 * If the device is valid and present, 739 * but not enabled, try to activate it. 740 */ 741 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 742 return; 743 744 old = (*di)->CurrentStatus; 745 746 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 747 return; 748 749 rv = acpi_allocate_resources(handle); 750 751 if (ACPI_FAILURE(rv)) 752 goto fail; 753 754 rv = AcpiGetObjectInfo(handle, &newdi); 755 756 if (ACPI_FAILURE(rv)) 757 goto fail; 758 759 ACPI_FREE(*di); 760 *di = newdi; 761 762 aprint_verbose_dev(acpi_softc->sc_dev, 763 "%s activated, STA 0x%08X -> STA 0x%08X\n", 764 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 765 766 return; 767 768 fail: 769 aprint_error_dev(acpi_softc->sc_dev, "failed to " 770 "activate %s\n", (*di)->HardwareId.String); 771 } 772 773 /* 774 * XXX: This very incomplete. 775 */ 776 ACPI_STATUS 777 acpi_allocate_resources(ACPI_HANDLE handle) 778 { 779 ACPI_BUFFER bufp, bufc, bufn; 780 ACPI_RESOURCE *resp, *resc, *resn; 781 ACPI_RESOURCE_IRQ *irq; 782 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 783 ACPI_STATUS rv; 784 uint delta; 785 786 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 787 if (ACPI_FAILURE(rv)) 788 goto out; 789 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 790 if (ACPI_FAILURE(rv)) { 791 goto out1; 792 } 793 794 bufn.Length = 1000; 795 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 796 resp = bufp.Pointer; 797 resc = bufc.Pointer; 798 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 799 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 800 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 801 resp = ACPI_NEXT_RESOURCE(resp); 802 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 803 break; 804 /* Found identical Id */ 805 resn->Type = resc->Type; 806 switch (resc->Type) { 807 case ACPI_RESOURCE_TYPE_IRQ: 808 memcpy(&resn->Data, &resp->Data, 809 sizeof(ACPI_RESOURCE_IRQ)); 810 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 811 irq->Interrupts[0] = 812 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 813 Interrupts[irq->InterruptCount-1]; 814 irq->InterruptCount = 1; 815 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 816 break; 817 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 818 memcpy(&resn->Data, &resp->Data, 819 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 820 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 821 #if 0 822 /* 823 * XXX not duplicating the interrupt logic above 824 * because its not clear what it accomplishes. 825 */ 826 xirq->Interrupts[0] = 827 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 828 Interrupts[irq->NumberOfInterrupts-1]; 829 xirq->NumberOfInterrupts = 1; 830 #endif 831 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 832 break; 833 case ACPI_RESOURCE_TYPE_IO: 834 memcpy(&resn->Data, &resp->Data, 835 sizeof(ACPI_RESOURCE_IO)); 836 resn->Length = resp->Length; 837 break; 838 default: 839 aprint_error_dev(acpi_softc->sc_dev, 840 "%s: invalid type %u\n", __func__, resc->Type); 841 rv = AE_BAD_DATA; 842 goto out2; 843 } 844 resc = ACPI_NEXT_RESOURCE(resc); 845 resn = ACPI_NEXT_RESOURCE(resn); 846 resp = ACPI_NEXT_RESOURCE(resp); 847 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 848 if (delta >= 849 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 850 bufn.Length *= 2; 851 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 852 M_ACPI, M_WAITOK); 853 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 854 } 855 } 856 857 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 858 aprint_error_dev(acpi_softc->sc_dev, 859 "%s: resc not exhausted\n", __func__); 860 rv = AE_BAD_DATA; 861 goto out3; 862 } 863 864 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 865 rv = AcpiSetCurrentResources(handle, &bufn); 866 867 if (ACPI_FAILURE(rv)) 868 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 869 "resources: %s\n", __func__, AcpiFormatException(rv)); 870 871 out3: 872 free(bufn.Pointer, M_ACPI); 873 out2: 874 ACPI_FREE(bufc.Pointer); 875 out1: 876 ACPI_FREE(bufp.Pointer); 877 out: 878 return rv; 879 } 880 881 #undef ACPI_DEV_VALID 882 #undef ACPI_DEV_STATUS 883 884 #endif /* ACPI_ACTIVATE_DEV */ 885 886 /* 887 * Device attachment. 888 */ 889 static int 890 acpi_rescan(device_t self, const char *ifattr, const int *locators) 891 { 892 struct acpi_softc *sc = device_private(self); 893 894 acpi_rescan1(sc, ifattr, locators); 895 896 return 0; 897 } 898 899 static void 900 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 901 { 902 903 if (ifattr_match(ifattr, "acpinodebus")) 904 acpi_rescan_nodes(sc); 905 906 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) 907 sc->sc_apmbus = config_found_ia(sc->sc_dev, 908 "acpiapmbus", NULL, NULL); 909 } 910 911 static void 912 acpi_rescan_nodes(struct acpi_softc *sc) 913 { 914 struct acpi_attach_args aa; 915 struct acpi_devnode *ad; 916 917 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 918 919 if (ad->ad_device != NULL) 920 continue; 921 922 aa.aa_node = ad; 923 aa.aa_iot = sc->sc_iot; 924 aa.aa_memt = sc->sc_memt; 925 aa.aa_pc = sc->sc_pc; 926 aa.aa_pciflags = sc->sc_pciflags; 927 aa.aa_ic = sc->sc_ic; 928 929 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 930 /* 931 * XXX We only attach devices which are: 932 * 933 * - present 934 * - enabled 935 * - functioning properly 936 * 937 * However, if enabled, it's decoding resources, 938 * so we should claim them, if possible. 939 * Requires changes to bus_space(9). 940 */ 941 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 942 ACPI_VALID_STA && 943 (ad->ad_devinfo->CurrentStatus & 944 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 945 ACPI_STA_DEV_OK)) != 946 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 947 ACPI_STA_DEV_OK)) 948 continue; 949 } 950 951 /* 952 * XXX Same problem as above... 953 * 954 * Do this check only for devices, as e.g. 955 * a Thermal Zone doesn't have a HID. 956 */ 957 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 958 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 959 continue; 960 961 /* 962 * Handled internally. 963 */ 964 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 965 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 966 continue; 967 968 /* 969 * Skip ignored HIDs. 970 */ 971 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 972 continue; 973 974 ad->ad_device = config_found_ia(sc->sc_dev, 975 "acpinodebus", &aa, acpi_print); 976 } 977 } 978 979 #define ACPI_STA_DEV_VALID \ 980 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 981 982 static void 983 acpi_rescan_capabilities(struct acpi_softc *sc) 984 { 985 struct acpi_devnode *ad; 986 ACPI_DEVICE_INFO *di; 987 ACPI_HANDLE tmp; 988 ACPI_STATUS rv; 989 990 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 991 992 di = ad->ad_devinfo; 993 994 if (di->Type != ACPI_TYPE_DEVICE) 995 continue; 996 997 if ((di->Valid & ACPI_VALID_STA) != 0 && 998 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 999 ACPI_STA_DEV_VALID) 1000 continue; 1001 1002 /* 1003 * Scan power resource capabilities. 1004 */ 1005 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 1006 1007 if (ACPI_FAILURE(rv)) 1008 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 1009 1010 if (ACPI_SUCCESS(rv)) 1011 ad->ad_flags |= ACPI_DEVICE_POWER; 1012 1013 /* 1014 * Scan wake-up capabilities. 1015 */ 1016 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 1017 1018 if (ACPI_SUCCESS(rv)) { 1019 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 1020 acpi_wakedev_add(ad); 1021 } 1022 1023 if (ad->ad_flags != 0) { 1024 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 1025 1026 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 1027 aprint_debug("power "); 1028 1029 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 1030 aprint_debug("wake-up "); 1031 1032 aprint_debug("\n"); 1033 } 1034 } 1035 } 1036 1037 #undef ACPI_STA_DEV_VALID 1038 1039 static int 1040 acpi_print(void *aux, const char *pnp) 1041 { 1042 struct acpi_attach_args *aa = aux; 1043 ACPI_STATUS rv; 1044 1045 if (pnp) { 1046 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1047 char *pnpstr = 1048 aa->aa_node->ad_devinfo->HardwareId.String; 1049 ACPI_BUFFER buf; 1050 1051 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 1052 pnpstr); 1053 1054 rv = acpi_eval_struct(aa->aa_node->ad_handle, 1055 "_STR", &buf); 1056 if (ACPI_SUCCESS(rv)) { 1057 ACPI_OBJECT *obj = buf.Pointer; 1058 switch (obj->Type) { 1059 case ACPI_TYPE_STRING: 1060 aprint_normal("[%s] ", obj->String.Pointer); 1061 break; 1062 case ACPI_TYPE_BUFFER: 1063 aprint_normal("buffer %p ", obj->Buffer.Pointer); 1064 break; 1065 default: 1066 aprint_normal("type %u ",obj->Type); 1067 break; 1068 } 1069 ACPI_FREE(buf.Pointer); 1070 } 1071 #ifdef ACPIVERBOSE 1072 else { 1073 int i; 1074 1075 for (i = 0; i < __arraycount(acpi_knowndevs); 1076 i++) { 1077 if (strcmp(acpi_knowndevs[i].pnp, 1078 pnpstr) == 0) { 1079 aprint_normal("[%s] ", 1080 acpi_knowndevs[i].str); 1081 } 1082 } 1083 } 1084 1085 #endif 1086 aprint_normal("at %s", pnp); 1087 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1088 aprint_normal("%s (ACPI Object Type '%s' " 1089 "[0x%02x]) ", aa->aa_node->ad_name, 1090 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1091 aa->aa_node->ad_devinfo->Type); 1092 aprint_normal("at %s", pnp); 1093 } else 1094 return 0; 1095 } else { 1096 aprint_normal(" (%s", aa->aa_node->ad_name); 1097 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1098 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1099 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1100 const char *uid; 1101 1102 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1103 if (uid[0] == '\0') 1104 uid = "<null>"; 1105 aprint_normal("-%s", uid); 1106 } 1107 } 1108 aprint_normal(")"); 1109 } 1110 1111 return UNCONF; 1112 } 1113 1114 /* 1115 * Fixed buttons. 1116 */ 1117 static void 1118 acpi_register_fixed_button(struct acpi_softc *sc, int event) 1119 { 1120 struct sysmon_pswitch *smpsw; 1121 ACPI_STATUS rv; 1122 int type; 1123 1124 switch (event) { 1125 1126 case ACPI_EVENT_POWER_BUTTON: 1127 1128 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) 1129 return; 1130 1131 type = PSWITCH_TYPE_POWER; 1132 smpsw = &sc->sc_smpsw_power; 1133 break; 1134 1135 case ACPI_EVENT_SLEEP_BUTTON: 1136 1137 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) 1138 return; 1139 1140 type = PSWITCH_TYPE_SLEEP; 1141 smpsw = &sc->sc_smpsw_sleep; 1142 break; 1143 1144 default: 1145 rv = AE_TYPE; 1146 goto fail; 1147 } 1148 1149 smpsw->smpsw_type = type; 1150 smpsw->smpsw_name = device_xname(sc->sc_dev); 1151 1152 if (sysmon_pswitch_register(smpsw) != 0) { 1153 rv = AE_ERROR; 1154 goto fail; 1155 } 1156 1157 rv = AcpiInstallFixedEventHandler(event, 1158 acpi_fixed_button_handler, smpsw); 1159 1160 if (ACPI_FAILURE(rv)) 1161 goto fail; 1162 1163 aprint_debug_dev(sc->sc_dev, "fixed %s button present\n", 1164 (type != ACPI_EVENT_SLEEP_BUTTON) ? "power" : "sleep"); 1165 1166 return; 1167 1168 fail: 1169 aprint_error_dev(sc->sc_dev, "failed to register " 1170 "fixed event: %s\n", AcpiFormatException(rv)); 1171 } 1172 1173 static void 1174 acpi_deregister_fixed_button(struct acpi_softc *sc, int event) 1175 { 1176 struct sysmon_pswitch *smpsw; 1177 ACPI_STATUS rv; 1178 1179 switch (event) { 1180 1181 case ACPI_EVENT_POWER_BUTTON: 1182 smpsw = &sc->sc_smpsw_power; 1183 1184 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) != 0) { 1185 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_POWER); 1186 return; 1187 } 1188 1189 break; 1190 1191 case ACPI_EVENT_SLEEP_BUTTON: 1192 smpsw = &sc->sc_smpsw_sleep; 1193 1194 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) != 0) { 1195 KASSERT(smpsw->smpsw_type != PSWITCH_TYPE_SLEEP); 1196 return; 1197 } 1198 1199 break; 1200 1201 default: 1202 rv = AE_TYPE; 1203 goto fail; 1204 } 1205 1206 rv = AcpiRemoveFixedEventHandler(event, acpi_fixed_button_handler); 1207 1208 if (ACPI_SUCCESS(rv)) { 1209 sysmon_pswitch_unregister(smpsw); 1210 return; 1211 } 1212 1213 fail: 1214 aprint_error_dev(sc->sc_dev, "failed to deregister " 1215 "fixed event: %s\n", AcpiFormatException(rv)); 1216 } 1217 1218 static uint32_t 1219 acpi_fixed_button_handler(void *context) 1220 { 1221 static const int handler = OSL_NOTIFY_HANDLER; 1222 struct sysmon_pswitch *smpsw = context; 1223 1224 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: fixed event\n", __func__)); 1225 1226 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1227 1228 return ACPI_INTERRUPT_HANDLED; 1229 } 1230 1231 static void 1232 acpi_fixed_button_pressed(void *context) 1233 { 1234 struct sysmon_pswitch *smpsw = context; 1235 1236 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1237 __func__, smpsw->smpsw_name)); 1238 1239 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1240 } 1241 1242 /* 1243 * Sleep. 1244 */ 1245 static void 1246 acpi_sleep_init(struct acpi_softc *sc) 1247 { 1248 uint8_t a, b, i; 1249 ACPI_STATUS rv; 1250 1251 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1252 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1253 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1254 1255 /* 1256 * Evaluate supported sleep states. 1257 */ 1258 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1259 1260 rv = AcpiGetSleepTypeData(i, &a, &b); 1261 1262 if (ACPI_SUCCESS(rv)) 1263 sc->sc_sleepstates |= __BIT(i); 1264 } 1265 } 1266 1267 ACPI_STATUS 1268 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1269 { 1270 ACPI_STATUS rv = AE_OK; 1271 int err; 1272 1273 if (state == sc->sc_sleepstate) 1274 return AE_OK; 1275 1276 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1277 1278 switch (state) { 1279 1280 case ACPI_STATE_S0: 1281 break; 1282 1283 case ACPI_STATE_S1: 1284 case ACPI_STATE_S2: 1285 case ACPI_STATE_S3: 1286 case ACPI_STATE_S4: 1287 1288 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1289 aprint_error_dev(sc->sc_dev, "sleep state " 1290 "S%d is not available\n", state); 1291 break; 1292 } 1293 1294 acpi_wakedev_commit(sc, state); 1295 1296 if (state != ACPI_STATE_S1 && 1297 pmf_system_suspend(PMF_Q_NONE) != true) { 1298 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1299 break; 1300 } 1301 1302 rv = AcpiEnterSleepStatePrep(state); 1303 1304 if (ACPI_FAILURE(rv)) { 1305 aprint_error_dev(sc->sc_dev, "failed to prepare " 1306 "S%d: %s\n", state, AcpiFormatException(rv)); 1307 break; 1308 } 1309 1310 sc->sc_sleepstate = state; 1311 1312 if (state == ACPI_STATE_S1) { 1313 1314 /* Just enter the state. */ 1315 acpi_md_OsDisableInterrupt(); 1316 rv = AcpiEnterSleepState(state); 1317 1318 if (ACPI_FAILURE(rv)) 1319 aprint_error_dev(sc->sc_dev, "failed to " 1320 "enter S1: %s\n", AcpiFormatException(rv)); 1321 1322 (void)AcpiLeaveSleepState(state); 1323 1324 } else { 1325 1326 err = acpi_md_sleep(state); 1327 1328 if (state == ACPI_STATE_S4) 1329 AcpiEnable(); 1330 1331 pmf_system_bus_resume(PMF_Q_NONE); 1332 (void)AcpiLeaveSleepState(state); 1333 pmf_system_resume(PMF_Q_NONE); 1334 } 1335 1336 break; 1337 case ACPI_STATE_S5: 1338 1339 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1340 1341 if (ACPI_FAILURE(rv)) { 1342 aprint_error_dev(sc->sc_dev, "failed to prepare " 1343 "S%d: %s\n", state, AcpiFormatException(rv)); 1344 break; 1345 } 1346 1347 DELAY(1000000); 1348 1349 sc->sc_sleepstate = state; 1350 acpi_md_OsDisableInterrupt(); 1351 1352 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1353 1354 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1355 break; 1356 } 1357 1358 sc->sc_sleepstate = ACPI_STATE_S0; 1359 1360 return rv; 1361 } 1362 1363 /* 1364 * Sysctl. 1365 */ 1366 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1367 { 1368 const struct sysctlnode *mnode, *rnode; 1369 int err; 1370 1371 err = sysctl_createv(clog, 0, NULL, &rnode, 1372 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1373 NULL, NULL, 0, NULL, 0, 1374 CTL_HW, CTL_EOL); 1375 1376 if (err != 0) 1377 return; 1378 1379 err = sysctl_createv(clog, 0, &rnode, &rnode, 1380 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1381 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1382 NULL, 0, NULL, 0, 1383 CTL_CREATE, CTL_EOL); 1384 1385 if (err != 0) 1386 return; 1387 1388 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1389 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1390 "root", SYSCTL_DESCR("ACPI root pointer"), 1391 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1392 CTL_CREATE, CTL_EOL); 1393 1394 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1395 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1396 "supported_states", SYSCTL_DESCR("Supported system states"), 1397 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1398 CTL_CREATE, CTL_EOL); 1399 1400 err = sysctl_createv(NULL, 0, NULL, &mnode, 1401 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1402 NULL, NULL, 0, NULL, 0, 1403 CTL_MACHDEP, CTL_EOL); 1404 1405 if (err == 0) { 1406 1407 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1408 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1409 "sleep_state", SYSCTL_DESCR("System sleep state"), 1410 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1411 CTL_CREATE, CTL_EOL); 1412 } 1413 1414 err = sysctl_createv(clog, 0, &rnode, &rnode, 1415 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1416 "stat", SYSCTL_DESCR("ACPI statistics"), 1417 NULL, 0, NULL, 0, 1418 CTL_CREATE, CTL_EOL); 1419 1420 if (err != 0) 1421 return; 1422 1423 (void)sysctl_createv(clog, 0, &rnode, NULL, 1424 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1425 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1426 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1427 CTL_CREATE, CTL_EOL); 1428 1429 (void)sysctl_createv(clog, 0, &rnode, NULL, 1430 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1431 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1432 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1433 CTL_CREATE, CTL_EOL); 1434 1435 (void)sysctl_createv(clog, 0, &rnode, NULL, 1436 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1437 "fixed", SYSCTL_DESCR("Number of fixed events"), 1438 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1439 CTL_CREATE, CTL_EOL); 1440 1441 (void)sysctl_createv(clog, 0, &rnode, NULL, 1442 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1443 "method", SYSCTL_DESCR("Number of methods executed"), 1444 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1445 CTL_CREATE, CTL_EOL); 1446 1447 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1448 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1449 } 1450 1451 static int 1452 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1453 { 1454 struct sysctlnode node; 1455 uint64_t t; 1456 int err, i; 1457 1458 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1459 t += AcpiFixedEventCount[i]; 1460 1461 node = *rnode; 1462 node.sysctl_data = &t; 1463 1464 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1465 1466 if (err || newp == NULL) 1467 return err; 1468 1469 return 0; 1470 } 1471 1472 static int 1473 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1474 { 1475 struct acpi_softc *sc = acpi_softc; 1476 struct sysctlnode node; 1477 int err, t; 1478 1479 if (acpi_softc == NULL) 1480 return ENOSYS; 1481 1482 node = *rnode; 1483 t = sc->sc_sleepstate; 1484 node.sysctl_data = &t; 1485 1486 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1487 1488 if (err || newp == NULL) 1489 return err; 1490 1491 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1492 return EINVAL; 1493 1494 acpi_enter_sleep_state(sc, t); 1495 1496 return 0; 1497 } 1498 1499 static int 1500 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1501 { 1502 struct acpi_softc *sc = acpi_softc; 1503 struct sysctlnode node; 1504 char t[3 * 6 + 1]; 1505 int err; 1506 1507 if (acpi_softc == NULL) 1508 return ENOSYS; 1509 1510 (void)memset(t, '\0', sizeof(t)); 1511 1512 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1513 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1514 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1515 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1516 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1517 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1518 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1519 1520 node = *rnode; 1521 node.sysctl_data = &t; 1522 1523 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1524 1525 if (err || newp == NULL) 1526 return err; 1527 1528 return 0; 1529 } 1530 1531 /* 1532 * Miscellaneous. 1533 */ 1534 ACPI_PHYSICAL_ADDRESS 1535 acpi_OsGetRootPointer(void) 1536 { 1537 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 1538 1539 /* 1540 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 1541 * 1542 * IA-64: Use the EFI. 1543 * 1544 * We let MD code handle this since there are multiple 1545 * ways to do it. 1546 */ 1547 PhysicalAddress = acpi_md_OsGetRootPointer(); 1548 1549 if (acpi_root_pointer == 0) 1550 acpi_root_pointer = PhysicalAddress; 1551 1552 return PhysicalAddress; 1553 } 1554 1555 static ACPI_TABLE_HEADER * 1556 acpi_map_rsdt(void) 1557 { 1558 ACPI_PHYSICAL_ADDRESS paddr; 1559 ACPI_TABLE_RSDP *rsdp; 1560 1561 paddr = AcpiOsGetRootPointer(); 1562 if (paddr == 0) { 1563 printf("ACPI: couldn't get root pointer\n"); 1564 return NULL; 1565 } 1566 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1567 if (rsdp == NULL) { 1568 printf("ACPI: couldn't map RSDP\n"); 1569 return NULL; 1570 } 1571 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1572 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1573 else 1574 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1575 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1576 1577 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1578 } 1579 1580 static void 1581 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1582 { 1583 if (rsdt == NULL) 1584 return; 1585 1586 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1587 } 1588
Indexes created Tue Sep 23 07:09:52 GMT 2025