acpi.c revision 1.167
1 /* $NetBSD: acpi.c,v 1.167 2010/04/12 18:59:08 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 /* 68 * Autoconfiguration support for the Intel ACPI Component Architecture 69 * ACPI reference implementation. 70 */ 71 72 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.167 2010/04/12 18:59:08 jruoho Exp $"); 74 75 #include "opt_acpi.h" 76 #include "opt_pcifixup.h" 77 78 #include <sys/param.h> 79 #include <sys/device.h> 80 #include <sys/kernel.h> 81 #include <sys/malloc.h> 82 #include <sys/mutex.h> 83 #include <sys/sysctl.h> 84 #include <sys/systm.h> 85 86 #include <dev/acpi/acpireg.h> 87 #include <dev/acpi/acpivar.h> 88 #include <dev/acpi/acpi_osd.h> 89 #include <dev/acpi/acpi_pci.h> 90 #include <dev/acpi/acpi_timer.h> 91 #include <dev/acpi/acpi_wakedev.h> 92 93 #ifdef ACPIVERBOSE 94 #include <dev/acpi/acpidevs_data.h> 95 #endif 96 97 #define _COMPONENT ACPI_BUS_COMPONENT 98 ACPI_MODULE_NAME ("acpi") 99 100 #if defined(ACPI_PCI_FIXUP) 101 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 102 #endif 103 104 #ifdef PCI_INTR_FIXUP_DISABLED 105 #include <dev/pci/pcidevs.h> 106 #endif 107 108 MALLOC_DECLARE(M_ACPI); 109 110 #include <machine/acpi_machdep.h> 111 112 #ifdef ACPI_DEBUGGER 113 #define ACPI_DBGR_INIT 0x01 114 #define ACPI_DBGR_TABLES 0x02 115 #define ACPI_DBGR_ENABLE 0x04 116 #define ACPI_DBGR_PROBE 0x08 117 #define ACPI_DBGR_RUNNING 0x10 118 119 static int acpi_dbgr = 0x00; 120 #endif 121 122 static ACPI_TABLE_DESC acpi_initial_tables[128]; 123 124 static int acpi_match(device_t, cfdata_t, void *); 125 static void acpi_attach(device_t, device_t, void *); 126 static void acpi_childdet(device_t, device_t); 127 static int acpi_detach(device_t, int); 128 129 static int acpi_rescan(device_t, const char *, const int *); 130 static void acpi_rescan1(struct acpi_softc *, const char *, const int *); 131 static void acpi_rescan_nodes(struct acpi_softc *); 132 static void acpi_rescan_capabilities(struct acpi_softc *); 133 134 static int acpi_print(void *aux, const char *); 135 136 static int sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS); 137 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 138 static int sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS); 139 140 extern struct cfdriver acpi_cd; 141 142 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 143 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 144 145 /* 146 * This is a flag we set when the ACPI subsystem is active. Machine 147 * dependent code may wish to skip other steps (such as attaching 148 * subsystems that ACPI supercedes) when ACPI is active. 149 */ 150 int acpi_active; 151 int acpi_force_load; 152 int acpi_suspended = 0; 153 154 struct acpi_softc *acpi_softc; 155 static uint64_t acpi_root_pointer; 156 extern kmutex_t acpi_interrupt_list_mtx; 157 158 /* 159 * Ignored HIDs. 160 */ 161 static const char * const acpi_ignored_ids[] = { 162 #if defined(i386) || defined(x86_64) 163 "PNP0000", /* AT interrupt controller is handled internally */ 164 "PNP0200", /* AT DMA controller is handled internally */ 165 "PNP0A??", /* PCI Busses are handled internally */ 166 "PNP0B00", /* AT RTC is handled internally */ 167 "PNP0C01", /* No "System Board" driver */ 168 "PNP0C02", /* No "PnP motherboard register resources" driver */ 169 "PNP0C0B", /* No need for "ACPI fan" driver */ 170 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 171 "IFX0102", /* No driver for Infineon TPM */ 172 "INT0800", /* No driver for Intel Firmware Hub device */ 173 #endif 174 #if defined(x86_64) 175 "PNP0C04", /* FPU is handled internally */ 176 #endif 177 NULL 178 }; 179 180 /* 181 * Prototypes. 182 */ 183 static void acpi_build_tree(struct acpi_softc *); 184 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 185 void *, void **); 186 187 static void acpi_enable_fixed_events(struct acpi_softc *); 188 static void acpi_sleep_init(struct acpi_softc *); 189 190 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 191 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 192 193 static bool acpi_suspend(device_t, const pmf_qual_t *); 194 static bool acpi_resume(device_t, const pmf_qual_t *); 195 196 #ifdef ACPI_ACTIVATE_DEV 197 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 198 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 199 #endif 200 201 /* 202 * acpi_probe: 203 * 204 * Probe for ACPI support. This is called by the 205 * machine-dependent ACPI front-end. All of the 206 * actual work is done by ACPICA. 207 * 208 * NOTE: This is not an autoconfiguration interface function. 209 */ 210 int 211 acpi_probe(void) 212 { 213 static int beenhere; 214 ACPI_TABLE_HEADER *rsdt; 215 ACPI_STATUS rv; 216 217 if (beenhere != 0) 218 panic("acpi_probe: ACPI has already been probed"); 219 beenhere = 1; 220 221 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 222 223 /* 224 * Start up ACPICA. 225 */ 226 #ifdef ACPI_DEBUGGER 227 if (acpi_dbgr & ACPI_DBGR_INIT) 228 acpi_osd_debugger(); 229 #endif 230 231 AcpiGbl_AllMethodsSerialized = FALSE; 232 AcpiGbl_EnableInterpreterSlack = TRUE; 233 234 rv = AcpiInitializeSubsystem(); 235 if (ACPI_FAILURE(rv)) { 236 printf("ACPI: unable to initialize ACPICA: %s\n", 237 AcpiFormatException(rv)); 238 return 0; 239 } 240 241 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 242 if (ACPI_FAILURE(rv)) { 243 #ifdef ACPI_DEBUG 244 printf("ACPI: unable to initialize ACPI tables: %s\n", 245 AcpiFormatException(rv)); 246 #endif 247 AcpiTerminate(); 248 return 0; 249 } 250 251 rv = AcpiReallocateRootTable(); 252 if (ACPI_FAILURE(rv)) { 253 printf("ACPI: unable to reallocate root table: %s\n", 254 AcpiFormatException(rv)); 255 AcpiTerminate(); 256 return 0; 257 } 258 259 #ifdef ACPI_DEBUGGER 260 if (acpi_dbgr & ACPI_DBGR_TABLES) 261 acpi_osd_debugger(); 262 #endif 263 264 rv = AcpiLoadTables(); 265 if (ACPI_FAILURE(rv)) { 266 printf("ACPI: unable to load tables: %s\n", 267 AcpiFormatException(rv)); 268 AcpiTerminate(); 269 return 0; 270 } 271 272 rsdt = acpi_map_rsdt(); 273 if (rsdt == NULL) { 274 printf("ACPI: unable to map RSDT\n"); 275 AcpiTerminate(); 276 return 0; 277 } 278 279 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 280 printf("ACPI: BIOS implementation in listed as broken:\n"); 281 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 282 "AslId <%4.4s,%08x>\n", 283 rsdt->OemId, rsdt->OemTableId, 284 rsdt->OemRevision, 285 rsdt->AslCompilerId, 286 rsdt->AslCompilerRevision); 287 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 288 acpi_unmap_rsdt(rsdt); 289 AcpiTerminate(); 290 return 0; 291 } 292 293 acpi_unmap_rsdt(rsdt); 294 295 #if notyet 296 /* Install the default address space handlers. */ 297 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 298 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 299 if (ACPI_FAILURE(rv)) { 300 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 301 AcpiFormatException(rv)); 302 AcpiTerminate(); 303 return 0; 304 } 305 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 306 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 307 if (ACPI_FAILURE(rv)) { 308 printf("ACPI: unable to initialize SystemIO handler: %s\n", 309 AcpiFormatException(rv)); 310 AcpiTerminate(); 311 return 0; 312 } 313 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 314 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 315 if (ACPI_FAILURE(rv)) { 316 printf("ACPI: unable to initialize PciConfig handler: %s\n", 317 AcpiFormatException(rv)); 318 AcpiTerminate(); 319 return 0; 320 } 321 #endif 322 323 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 324 if (ACPI_FAILURE(rv)) { 325 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 326 AcpiTerminate(); 327 return 0; 328 } 329 330 /* 331 * Looks like we have ACPI! 332 */ 333 334 return 1; 335 } 336 337 static int 338 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 339 { 340 struct cfattach *ca; 341 342 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 343 return (ca == &acpi_ca); 344 } 345 346 int 347 acpi_check(device_t parent, const char *ifattr) 348 { 349 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 350 } 351 352 ACPI_PHYSICAL_ADDRESS 353 acpi_OsGetRootPointer(void) 354 { 355 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 356 357 /* 358 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 359 * 360 * IA-64: Use the EFI. 361 * 362 * We let MD code handle this since there are multiple 363 * ways to do it. 364 */ 365 366 PhysicalAddress = acpi_md_OsGetRootPointer(); 367 368 if (acpi_root_pointer == 0) 369 acpi_root_pointer = PhysicalAddress; 370 371 return PhysicalAddress; 372 } 373 374 /* 375 * acpi_match: 376 * 377 * Autoconfiguration `match' routine. 378 */ 379 static int 380 acpi_match(device_t parent, cfdata_t match, void *aux) 381 { 382 /* 383 * XXX Check other locators? Hard to know -- machine 384 * dependent code has already checked for the presence 385 * of ACPI by calling acpi_probe(), so I suppose we 386 * don't really have to do anything else. 387 */ 388 return 1; 389 } 390 391 /* Remove references to child devices. 392 * 393 * XXX Need to reclaim any resources? 394 */ 395 static void 396 acpi_childdet(device_t self, device_t child) 397 { 398 struct acpi_softc *sc = device_private(self); 399 struct acpi_devnode *ad; 400 401 if (sc->sc_apmbus == child) 402 sc->sc_apmbus = NULL; 403 404 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 405 406 if (ad->ad_device == child) 407 ad->ad_device = NULL; 408 } 409 } 410 411 /* 412 * acpi_attach: 413 * 414 * Autoconfiguration `attach' routine. Finish initializing 415 * ACPICA (some initialization was done in acpi_probe(), 416 * which was required to check for the presence of ACPI), 417 * and enable the ACPI subsystem. 418 */ 419 static void 420 acpi_attach(device_t parent, device_t self, void *aux) 421 { 422 struct acpi_softc *sc = device_private(self); 423 struct acpibus_attach_args *aa = aux; 424 ACPI_TABLE_HEADER *rsdt; 425 ACPI_STATUS rv; 426 427 aprint_naive("\n"); 428 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 429 430 if (acpi_softc != NULL) 431 panic("acpi_attach: ACPI has already been attached"); 432 433 sysmon_power_settype("acpi"); 434 435 rsdt = acpi_map_rsdt(); 436 if (rsdt) { 437 aprint_verbose_dev( 438 self, 439 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 440 rsdt->OemId, rsdt->OemTableId, 441 rsdt->OemRevision, 442 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 443 } else 444 aprint_error_dev(self, "X/RSDT: Not found\n"); 445 446 acpi_unmap_rsdt(rsdt); 447 448 sc->sc_dev = self; 449 sc->sc_quirks = acpi_find_quirks(); 450 sc->sc_sleepstate = ACPI_STATE_S0; 451 452 sc->sc_iot = aa->aa_iot; 453 sc->sc_memt = aa->aa_memt; 454 sc->sc_pc = aa->aa_pc; 455 sc->sc_pciflags = aa->aa_pciflags; 456 sc->sc_ic = aa->aa_ic; 457 458 SIMPLEQ_INIT(&sc->sc_devnodes); 459 460 acpi_softc = sc; 461 462 /* 463 * Register null power management handler. 464 */ 465 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 466 aprint_error_dev(self, "couldn't establish power handler\n"); 467 468 /* 469 * Bring ACPI on-line. 470 */ 471 #ifdef ACPI_DEBUGGER 472 if (acpi_dbgr & ACPI_DBGR_ENABLE) 473 acpi_osd_debugger(); 474 #endif 475 476 #define ACPI_ENABLE_PHASE1 \ 477 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 478 #define ACPI_ENABLE_PHASE2 \ 479 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 480 ACPI_NO_ADDRESS_SPACE_INIT) 481 482 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 483 if (ACPI_FAILURE(rv)) { 484 aprint_error_dev(self, "unable to enable ACPI: %s\n", 485 AcpiFormatException(rv)); 486 return; 487 } 488 489 acpi_md_callback(); 490 491 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 492 if (ACPI_FAILURE(rv)) { 493 aprint_error_dev(self, "unable to enable ACPI: %s\n", 494 AcpiFormatException(rv)); 495 return; 496 } 497 498 /* Early EC handler initialization if ECDT table is available. */ 499 config_found_ia(self, "acpiecdtbus", aa, NULL); 500 501 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 502 if (ACPI_FAILURE(rv)) { 503 aprint_error_dev(self, 504 "unable to initialize ACPI objects: %s\n", 505 AcpiFormatException(rv)); 506 return; 507 } 508 acpi_active = 1; 509 510 /* Our current state is "awake". */ 511 sc->sc_sleepstate = ACPI_STATE_S0; 512 513 /* Show SCI interrupt. */ 514 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 515 AcpiGbl_FADT.SciInterrupt); 516 517 /* 518 * Check for fixed-hardware features. 519 */ 520 acpi_enable_fixed_events(sc); 521 acpitimer_init(); 522 523 /* 524 * Scan the namespace and build our device tree. 525 */ 526 #ifdef ACPI_DEBUGGER 527 if (acpi_dbgr & ACPI_DBGR_PROBE) 528 acpi_osd_debugger(); 529 #endif 530 531 acpi_build_tree(sc); 532 acpi_sleep_init(sc); 533 534 #ifdef ACPI_DEBUGGER 535 if (acpi_dbgr & ACPI_DBGR_RUNNING) 536 acpi_osd_debugger(); 537 #endif 538 539 #ifdef ACPI_DEBUG 540 acpi_debug_init(); 541 #endif 542 } 543 544 static int 545 acpi_detach(device_t self, int flags) 546 { 547 int rc; 548 549 #ifdef ACPI_DEBUGGER 550 if (acpi_dbgr & ACPI_DBGR_RUNNING) 551 acpi_osd_debugger(); 552 #endif 553 554 if ((rc = config_detach_children(self, flags)) != 0) 555 return rc; 556 557 #ifdef ACPI_DEBUGGER 558 if (acpi_dbgr & ACPI_DBGR_PROBE) 559 acpi_osd_debugger(); 560 #endif 561 562 if ((rc = acpitimer_detach()) != 0) 563 return rc; 564 565 #if 0 566 /* 567 * Bring ACPI on-line. 568 */ 569 #ifdef ACPI_DEBUGGER 570 if (acpi_dbgr & ACPI_DBGR_ENABLE) 571 acpi_osd_debugger(); 572 #endif 573 574 #define ACPI_ENABLE_PHASE1 \ 575 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 576 #define ACPI_ENABLE_PHASE2 \ 577 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 578 ACPI_NO_ADDRESS_SPACE_INIT) 579 580 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 581 if (ACPI_FAILURE(rv)) { 582 aprint_error_dev(self, "unable to enable ACPI: %s\n", 583 AcpiFormatException(rv)); 584 return; 585 } 586 587 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 588 if (ACPI_FAILURE(rv)) { 589 aprint_error_dev(self, "unable to enable ACPI: %s\n", 590 AcpiFormatException(rv)); 591 return; 592 } 593 594 /* Early EC handler initialization if ECDT table is available. */ 595 config_found_ia(self, "acpiecdtbus", aa, NULL); 596 597 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 598 if (ACPI_FAILURE(rv)) { 599 aprint_error_dev(self, 600 "unable to initialize ACPI objects: %s\n", 601 AcpiFormatException(rv)); 602 return; 603 } 604 acpi_active = 1; 605 606 acpi_enable_fixed_events(sc); 607 #endif 608 609 pmf_device_deregister(self); 610 611 #if 0 612 sysmon_power_settype("acpi"); 613 #endif 614 acpi_softc = NULL; 615 616 return 0; 617 } 618 619 static bool 620 acpi_suspend(device_t dv, const pmf_qual_t *qual) 621 { 622 acpi_suspended = 1; 623 return true; 624 } 625 626 static bool 627 acpi_resume(device_t dv, const pmf_qual_t *qual) 628 { 629 acpi_suspended = 0; 630 return true; 631 } 632 633 #if 0 634 /* 635 * acpi_disable: 636 * 637 * Disable ACPI. 638 */ 639 static ACPI_STATUS 640 acpi_disable(struct acpi_softc *sc) 641 { 642 ACPI_STATUS rv = AE_OK; 643 644 if (acpi_active) { 645 rv = AcpiDisable(); 646 if (ACPI_SUCCESS(rv)) 647 acpi_active = 0; 648 } 649 return rv; 650 } 651 #endif 652 653 /* 654 * acpi_build_tree: 655 * 656 * Scan the ACPI namespace and attach child devices. 657 */ 658 static void 659 acpi_build_tree(struct acpi_softc *sc) 660 { 661 662 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, 663 UINT32_MAX, acpi_make_devnode, NULL, sc, NULL); 664 665 acpi_rescan1(sc, NULL, NULL); 666 acpi_rescan_capabilities(sc); 667 668 acpi_pcidev_scan(sc); 669 } 670 671 static int 672 acpi_rescan(device_t self, const char *ifattr, const int *locators) 673 { 674 struct acpi_softc *sc = device_private(self); 675 676 acpi_rescan1(sc, ifattr, locators); 677 return 0; 678 } 679 680 static void 681 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 682 { 683 if (ifattr_match(ifattr, "acpinodebus")) 684 acpi_rescan_nodes(sc); 685 686 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 687 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 688 NULL); 689 } 690 } 691 692 static void 693 acpi_rescan_nodes(struct acpi_softc *sc) 694 { 695 struct acpi_attach_args aa; 696 struct acpi_devnode *ad; 697 698 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 699 700 if (ad->ad_device != NULL) 701 continue; 702 703 aa.aa_node = ad; 704 aa.aa_iot = sc->sc_iot; 705 aa.aa_memt = sc->sc_memt; 706 aa.aa_pc = sc->sc_pc; 707 aa.aa_pciflags = sc->sc_pciflags; 708 aa.aa_ic = sc->sc_ic; 709 710 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 711 /* 712 * XXX We only attach devices which are: 713 * 714 * - present 715 * - enabled 716 * - functioning properly 717 * 718 * However, if enabled, it's decoding resources, 719 * so we should claim them, if possible. 720 * Requires changes to bus_space(9). 721 */ 722 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 723 ACPI_VALID_STA && 724 (ad->ad_devinfo->CurrentStatus & 725 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 726 ACPI_STA_DEV_OK)) != 727 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 728 ACPI_STA_DEV_OK)) 729 continue; 730 } 731 732 /* 733 * XXX Same problem as above... 734 * 735 * Do this check only for devices, as e.g. 736 * a Thermal Zone doesn't have a HID. 737 */ 738 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 739 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 740 continue; 741 742 /* 743 * Handled internally. 744 */ 745 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 746 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 747 continue; 748 749 /* 750 * Skip ignored HIDs. 751 */ 752 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 753 continue; 754 755 ad->ad_device = config_found_ia(sc->sc_dev, 756 "acpinodebus", &aa, acpi_print); 757 } 758 } 759 760 #define ACPI_STA_DEV_VALID \ 761 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 762 763 /* 764 * acpi_rescan_capabilities: 765 * 766 * Scan device capabilities. 767 */ 768 static void 769 acpi_rescan_capabilities(struct acpi_softc *sc) 770 { 771 struct acpi_devnode *ad; 772 ACPI_DEVICE_INFO *di; 773 ACPI_HANDLE tmp; 774 ACPI_STATUS rv; 775 776 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 777 778 di = ad->ad_devinfo; 779 780 if (di->Type != ACPI_TYPE_DEVICE) 781 continue; 782 783 if ((di->Valid & ACPI_VALID_STA) != 0 && 784 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 785 ACPI_STA_DEV_VALID) 786 continue; 787 788 /* 789 * Scan power resource capabilities. 790 */ 791 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 792 793 if (ACPI_FAILURE(rv)) 794 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 795 796 if (ACPI_SUCCESS(rv)) 797 ad->ad_flags |= ACPI_DEVICE_POWER; 798 799 /* 800 * Scan wake-up capabilities. 801 */ 802 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 803 804 if (ACPI_SUCCESS(rv)) { 805 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 806 acpi_wakedev_add(ad); 807 } 808 809 if (ad->ad_flags != 0) { 810 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 811 812 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 813 aprint_debug("power "); 814 815 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 816 aprint_debug("wake-up "); 817 818 aprint_debug("\n"); 819 } 820 } 821 } 822 823 #undef ACPI_STA_DEV_VALID 824 825 /* 826 * acpi_make_devnode: 827 * 828 * Make an ACPI devnode. 829 */ 830 static ACPI_STATUS 831 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 832 void *context, void **status) 833 { 834 struct acpi_softc *sc = context; 835 struct acpi_devnode *ad; 836 ACPI_DEVICE_INFO *devinfo; 837 ACPI_OBJECT_TYPE type; 838 ACPI_NAME_UNION *anu; 839 ACPI_STATUS rv; 840 int clear, i; 841 842 rv = AcpiGetObjectInfo(handle, &devinfo); 843 844 if (ACPI_FAILURE(rv)) 845 return AE_OK; /* Do not terminate the walk. */ 846 847 type = devinfo->Type; 848 849 switch (type) { 850 851 case ACPI_TYPE_DEVICE: 852 853 #ifdef ACPI_ACTIVATE_DEV 854 acpi_activate_device(handle, &devinfo); 855 #endif 856 857 case ACPI_TYPE_PROCESSOR: 858 case ACPI_TYPE_THERMAL: 859 case ACPI_TYPE_POWER: 860 861 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 862 863 if (ad == NULL) 864 return AE_NO_MEMORY; 865 866 ad->ad_parent = sc->sc_dev; 867 ad->ad_devinfo = devinfo; 868 ad->ad_handle = handle; 869 ad->ad_type = type; 870 871 anu = (ACPI_NAME_UNION *)&devinfo->Name; 872 ad->ad_name[4] = '\0'; 873 874 for (i = 3, clear = 0; i >= 0; i--) { 875 876 if (clear == 0 && anu->Ascii[i] == '_') 877 ad->ad_name[i] = '\0'; 878 else { 879 ad->ad_name[i] = anu->Ascii[i]; 880 clear = 1; 881 } 882 } 883 884 if (ad->ad_name[0] == '\0') 885 ad->ad_name[0] = '_'; 886 887 SIMPLEQ_INSERT_TAIL(&sc->sc_devnodes, ad, ad_list); 888 889 #ifdef ACPIVERBOSE 890 891 if (type != ACPI_TYPE_DEVICE) 892 return AE_OK; 893 894 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 895 896 aprint_normal("HID %-10s ", 897 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 898 devinfo->HardwareId.String: "-"); 899 900 aprint_normal("UID %-4s ", 901 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 902 devinfo->UniqueId.String : "-"); 903 904 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 905 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 906 else 907 aprint_normal("STA %10s ", "-"); 908 909 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 910 aprint_normal("ADR 0x%016" PRIX64"", 911 devinfo->Address); 912 913 aprint_normal("\n"); 914 #endif 915 } 916 917 return AE_OK; 918 } 919 920 /* 921 * acpi_print: 922 * 923 * Autoconfiguration print routine for ACPI node bus. 924 */ 925 static int 926 acpi_print(void *aux, const char *pnp) 927 { 928 struct acpi_attach_args *aa = aux; 929 ACPI_STATUS rv; 930 931 if (pnp) { 932 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 933 char *pnpstr = 934 aa->aa_node->ad_devinfo->HardwareId.String; 935 ACPI_BUFFER buf; 936 937 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 938 pnpstr); 939 940 rv = acpi_eval_struct(aa->aa_node->ad_handle, 941 "_STR", &buf); 942 if (ACPI_SUCCESS(rv)) { 943 ACPI_OBJECT *obj = buf.Pointer; 944 switch (obj->Type) { 945 case ACPI_TYPE_STRING: 946 aprint_normal("[%s] ", obj->String.Pointer); 947 break; 948 case ACPI_TYPE_BUFFER: 949 aprint_normal("buffer %p ", obj->Buffer.Pointer); 950 break; 951 default: 952 aprint_normal("type %u ",obj->Type); 953 break; 954 } 955 ACPI_FREE(buf.Pointer); 956 } 957 #ifdef ACPIVERBOSE 958 else { 959 int i; 960 961 for (i = 0; i < __arraycount(acpi_knowndevs); 962 i++) { 963 if (strcmp(acpi_knowndevs[i].pnp, 964 pnpstr) == 0) { 965 aprint_normal("[%s] ", 966 acpi_knowndevs[i].str); 967 } 968 } 969 } 970 971 #endif 972 aprint_normal("at %s", pnp); 973 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 974 aprint_normal("%s (ACPI Object Type '%s' " 975 "[0x%02x]) ", aa->aa_node->ad_name, 976 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 977 aa->aa_node->ad_devinfo->Type); 978 aprint_normal("at %s", pnp); 979 } else 980 return 0; 981 } else { 982 aprint_normal(" (%s", aa->aa_node->ad_name); 983 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 984 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 985 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 986 const char *uid; 987 988 uid = aa->aa_node->ad_devinfo->UniqueId.String; 989 if (uid[0] == '\0') 990 uid = "<null>"; 991 aprint_normal("-%s", uid); 992 } 993 } 994 aprint_normal(")"); 995 } 996 997 return UNCONF; 998 } 999 1000 /***************************************************************************** 1001 * ACPI fixed-hardware feature handlers 1002 *****************************************************************************/ 1003 1004 static UINT32 acpi_fixed_button_handler(void *); 1005 static void acpi_fixed_button_pressed(void *); 1006 1007 /* 1008 * acpi_enable_fixed_events: 1009 * 1010 * Enable any fixed-hardware feature handlers. 1011 */ 1012 static void 1013 acpi_enable_fixed_events(struct acpi_softc *sc) 1014 { 1015 static int beenhere; 1016 ACPI_STATUS rv; 1017 1018 KASSERT(beenhere == 0); 1019 beenhere = 1; 1020 1021 /* 1022 * Check for fixed-hardware buttons. 1023 */ 1024 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1025 aprint_verbose_dev(sc->sc_dev, 1026 "fixed-feature power button present\n"); 1027 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1028 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1029 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1030 aprint_error_dev(sc->sc_dev, 1031 "unable to register fixed power " 1032 "button with sysmon\n"); 1033 } else { 1034 rv = AcpiInstallFixedEventHandler( 1035 ACPI_EVENT_POWER_BUTTON, 1036 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1037 if (ACPI_FAILURE(rv)) { 1038 aprint_error_dev(sc->sc_dev, 1039 "unable to install handler " 1040 "for fixed power button: %s\n", 1041 AcpiFormatException(rv)); 1042 } 1043 } 1044 } 1045 1046 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1047 aprint_verbose_dev(sc->sc_dev, 1048 "fixed-feature sleep button present\n"); 1049 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1050 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1051 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1052 aprint_error_dev(sc->sc_dev, 1053 "unable to register fixed sleep " 1054 "button with sysmon\n"); 1055 } else { 1056 rv = AcpiInstallFixedEventHandler( 1057 ACPI_EVENT_SLEEP_BUTTON, 1058 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1059 if (ACPI_FAILURE(rv)) { 1060 aprint_error_dev(sc->sc_dev, 1061 "unable to install handler " 1062 "for fixed sleep button: %s\n", 1063 AcpiFormatException(rv)); 1064 } 1065 } 1066 } 1067 } 1068 1069 /* 1070 * acpi_fixed_button_handler: 1071 * 1072 * Event handler for the fixed buttons. 1073 */ 1074 static UINT32 1075 acpi_fixed_button_handler(void *context) 1076 { 1077 static const int handler = OSL_NOTIFY_HANDLER; 1078 struct sysmon_pswitch *smpsw = context; 1079 1080 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s\n", __func__)); 1081 1082 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1083 1084 return ACPI_INTERRUPT_HANDLED; 1085 } 1086 1087 /* 1088 * acpi_fixed_button_pressed: 1089 * 1090 * Deal with a fixed button being pressed. 1091 */ 1092 static void 1093 acpi_fixed_button_pressed(void *context) 1094 { 1095 struct sysmon_pswitch *smpsw = context; 1096 1097 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1098 __func__, smpsw->smpsw_name)); 1099 1100 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1101 } 1102 1103 /***************************************************************************** 1104 * ACPI utility routines. 1105 *****************************************************************************/ 1106 1107 /* 1108 * acpi_eval_integer: 1109 * 1110 * Evaluate an integer object. 1111 */ 1112 ACPI_STATUS 1113 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1114 { 1115 ACPI_STATUS rv; 1116 ACPI_BUFFER buf; 1117 ACPI_OBJECT param; 1118 1119 if (handle == NULL) 1120 handle = ACPI_ROOT_OBJECT; 1121 1122 buf.Pointer = ¶m; 1123 buf.Length = sizeof(param); 1124 1125 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1126 ACPI_TYPE_INTEGER); 1127 if (ACPI_SUCCESS(rv)) 1128 *valp = param.Integer.Value; 1129 1130 return rv; 1131 } 1132 1133 /* 1134 * acpi_eval_set_integer: 1135 * 1136 * Evaluate an integer object with a single integer input parameter. 1137 */ 1138 ACPI_STATUS 1139 acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1140 { 1141 ACPI_OBJECT param_arg; 1142 ACPI_OBJECT_LIST param_args; 1143 1144 if (handle == NULL) 1145 handle = ACPI_ROOT_OBJECT; 1146 1147 param_arg.Type = ACPI_TYPE_INTEGER; 1148 param_arg.Integer.Value = arg; 1149 1150 param_args.Count = 1; 1151 param_args.Pointer = ¶m_arg; 1152 1153 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1154 } 1155 1156 /* 1157 * acpi_eval_string: 1158 * 1159 * Evaluate a (Unicode) string object. 1160 */ 1161 ACPI_STATUS 1162 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1163 { 1164 ACPI_OBJECT *obj; 1165 ACPI_BUFFER buf; 1166 ACPI_STATUS rv; 1167 1168 rv = acpi_eval_struct(handle, path, &buf); 1169 1170 if (ACPI_FAILURE(rv)) 1171 return rv; 1172 1173 obj = buf.Pointer; 1174 1175 if (obj->Type != ACPI_TYPE_STRING) { 1176 rv = AE_TYPE; 1177 goto out; 1178 } 1179 1180 if (obj->String.Length == 0) { 1181 rv = AE_BAD_DATA; 1182 goto out; 1183 } 1184 1185 *stringp = ACPI_ALLOCATE(obj->String.Length + 1); 1186 1187 if (*stringp == NULL) { 1188 rv = AE_NO_MEMORY; 1189 goto out; 1190 } 1191 1192 (void)memcpy(*stringp, obj->String.Pointer, obj->String.Length); 1193 1194 (*stringp)[obj->String.Length] = '\0'; 1195 1196 out: 1197 ACPI_FREE(buf.Pointer); 1198 1199 return rv; 1200 } 1201 1202 /* 1203 * acpi_eval_struct: 1204 * 1205 * Evaluate a more complex structure. 1206 * Caller must free buf.Pointer by ACPI_FREE(). 1207 */ 1208 ACPI_STATUS 1209 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1210 { 1211 ACPI_STATUS rv; 1212 1213 if (handle == NULL) 1214 handle = ACPI_ROOT_OBJECT; 1215 1216 bufp->Pointer = NULL; 1217 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1218 1219 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1220 1221 return rv; 1222 } 1223 1224 /* 1225 * acpi_eval_reference_handle: 1226 * 1227 * Evaluate a reference handle from an element in a package. 1228 */ 1229 ACPI_STATUS 1230 acpi_eval_reference_handle(ACPI_OBJECT *elm, ACPI_HANDLE *handle) 1231 { 1232 1233 if (elm == NULL || handle == NULL) 1234 return AE_BAD_PARAMETER; 1235 1236 switch (elm->Type) { 1237 1238 case ACPI_TYPE_ANY: 1239 case ACPI_TYPE_LOCAL_REFERENCE: 1240 1241 if (elm->Reference.Handle == NULL) 1242 return AE_NULL_ENTRY; 1243 1244 *handle = elm->Reference.Handle; 1245 1246 return AE_OK; 1247 1248 case ACPI_TYPE_STRING: 1249 return AcpiGetHandle(NULL, elm->String.Pointer, handle); 1250 1251 default: 1252 return AE_TYPE; 1253 } 1254 } 1255 1256 /* 1257 * acpi_foreach_package_object: 1258 * 1259 * Iterate over all objects in a package, and pass them all 1260 * to a function. If the called function returns non AE_OK, the 1261 * iteration is stopped and that value is returned. 1262 */ 1263 ACPI_STATUS 1264 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1265 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1266 void *arg) 1267 { 1268 ACPI_STATUS rv = AE_OK; 1269 int i; 1270 1271 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1272 return AE_BAD_PARAMETER; 1273 1274 for (i = 0; i < pkg->Package.Count; i++) { 1275 rv = (*func)(&pkg->Package.Elements[i], arg); 1276 if (ACPI_FAILURE(rv)) 1277 break; 1278 } 1279 1280 return rv; 1281 } 1282 1283 /* 1284 * acpi_name: 1285 * 1286 * Return a complete pathname from a handle. 1287 * 1288 * Note that the function uses static data storage; 1289 * if the data is needed for future use, it should be 1290 * copied before any subsequent calls overwrite it. 1291 */ 1292 const char * 1293 acpi_name(ACPI_HANDLE handle) 1294 { 1295 static char buffer[80]; 1296 ACPI_BUFFER buf; 1297 ACPI_STATUS rv; 1298 1299 buf.Length = sizeof(buffer); 1300 buf.Pointer = buffer; 1301 1302 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1303 if (ACPI_FAILURE(rv)) 1304 return "(unknown acpi path)"; 1305 return buffer; 1306 } 1307 1308 /* 1309 * acpi_get: 1310 * 1311 * Fetch data info the specified (empty) ACPI buffer. 1312 * Caller must free buf.Pointer by ACPI_FREE(). 1313 */ 1314 ACPI_STATUS 1315 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1316 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1317 { 1318 buf->Pointer = NULL; 1319 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1320 1321 return (*getit)(handle, buf); 1322 } 1323 1324 1325 /* 1326 * acpi_match_hid 1327 * 1328 * Match given ids against _HID and _CIDs. 1329 */ 1330 int 1331 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1332 { 1333 int i; 1334 1335 while (*ids) { 1336 if (ad->Valid & ACPI_VALID_HID) { 1337 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1338 return 1; 1339 } 1340 1341 if (ad->Valid & ACPI_VALID_CID) { 1342 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1343 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1344 return 1; 1345 } 1346 } 1347 ids++; 1348 } 1349 1350 return 0; 1351 } 1352 1353 /* 1354 * acpi_wake_gpe_helper 1355 * 1356 * Set/unset GPE as both Runtime and Wake. 1357 */ 1358 static void 1359 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1360 { 1361 ACPI_OBJECT *elm, *obj; 1362 ACPI_INTEGER val; 1363 ACPI_BUFFER buf; 1364 ACPI_STATUS rv; 1365 1366 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1367 1368 if (ACPI_FAILURE(rv)) 1369 return; 1370 1371 obj = buf.Pointer; 1372 1373 if (obj->Type != ACPI_TYPE_PACKAGE || obj->Package.Count < 2) 1374 goto out; 1375 1376 /* 1377 * As noted in ACPI 3.0 (section 7.2.10), the _PRW object is 1378 * a package in which the first element is either an integer 1379 * or again a package. In the latter case the package inside 1380 * the package element has two elements, a reference handle 1381 * and the GPE number. 1382 */ 1383 elm = &obj->Package.Elements[0]; 1384 1385 switch (elm->Type) { 1386 1387 case ACPI_TYPE_INTEGER: 1388 val = elm->Integer.Value; 1389 break; 1390 1391 case ACPI_TYPE_PACKAGE: 1392 1393 if (elm->Package.Count < 2) 1394 goto out; 1395 1396 if (elm->Package.Elements[0].Type != ACPI_TYPE_LOCAL_REFERENCE) 1397 goto out; 1398 1399 if (elm->Package.Elements[1].Type != ACPI_TYPE_INTEGER) 1400 goto out; 1401 1402 val = elm->Package.Elements[1].Integer.Value; 1403 break; 1404 1405 default: 1406 goto out; 1407 } 1408 1409 if (enable) { 1410 (void)AcpiSetGpeType(NULL, val, ACPI_GPE_TYPE_WAKE_RUN); 1411 (void)AcpiEnableGpe(NULL, val, ACPI_NOT_ISR); 1412 } else 1413 (void)AcpiDisableGpe(NULL, val, ACPI_NOT_ISR); 1414 1415 out: 1416 ACPI_FREE(buf.Pointer); 1417 } 1418 1419 /* 1420 * acpi_clear_wake_gpe 1421 * 1422 * Clear GPE as both Runtime and Wake. 1423 */ 1424 void 1425 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1426 { 1427 acpi_wake_gpe_helper(handle, false); 1428 } 1429 1430 /* 1431 * acpi_set_wake_gpe 1432 * 1433 * Set GPE as both Runtime and Wake. 1434 */ 1435 void 1436 acpi_set_wake_gpe(ACPI_HANDLE handle) 1437 { 1438 acpi_wake_gpe_helper(handle, true); 1439 } 1440 1441 1442 /***************************************************************************** 1443 * ACPI sleep support. 1444 *****************************************************************************/ 1445 1446 /* 1447 * acpi_sleep_init: 1448 * 1449 * Evaluate supported sleep states. 1450 */ 1451 static void 1452 acpi_sleep_init(struct acpi_softc *sc) 1453 { 1454 uint8_t a, b, i; 1455 ACPI_STATUS rv; 1456 1457 CTASSERT(ACPI_STATE_S0 == 0 && ACPI_STATE_S1 == 1); 1458 CTASSERT(ACPI_STATE_S2 == 2 && ACPI_STATE_S3 == 3); 1459 CTASSERT(ACPI_STATE_S4 == 4 && ACPI_STATE_S5 == 5); 1460 1461 for (i = ACPI_STATE_S0; i <= ACPI_STATE_S5; i++) { 1462 1463 rv = AcpiGetSleepTypeData(i, &a, &b); 1464 1465 if (ACPI_SUCCESS(rv)) 1466 sc->sc_sleepstates |= __BIT(i); 1467 } 1468 } 1469 1470 /* 1471 * acpi_enter_sleep_state: 1472 * 1473 * Enter to the specified sleep state. 1474 */ 1475 ACPI_STATUS 1476 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1477 { 1478 ACPI_STATUS rv = AE_OK; 1479 int err; 1480 1481 if (state == sc->sc_sleepstate) 1482 return AE_OK; 1483 1484 aprint_normal_dev(sc->sc_dev, "entering state S%d\n", state); 1485 1486 switch (state) { 1487 1488 case ACPI_STATE_S0: 1489 break; 1490 1491 case ACPI_STATE_S1: 1492 case ACPI_STATE_S2: 1493 case ACPI_STATE_S3: 1494 case ACPI_STATE_S4: 1495 1496 if ((sc->sc_sleepstates & __BIT(state)) == 0) { 1497 aprint_error_dev(sc->sc_dev, "sleep state " 1498 "S%d is not available\n", state); 1499 break; 1500 } 1501 1502 acpi_wakedev_commit(sc, state); 1503 1504 if (state != ACPI_STATE_S1 && 1505 pmf_system_suspend(PMF_Q_NONE) != true) { 1506 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1507 break; 1508 } 1509 1510 rv = AcpiEnterSleepStatePrep(state); 1511 1512 if (ACPI_FAILURE(rv)) { 1513 aprint_error_dev(sc->sc_dev, "failed to prepare " 1514 "S%d: %s\n", state, AcpiFormatException(rv)); 1515 break; 1516 } 1517 1518 sc->sc_sleepstate = state; 1519 1520 if (state == ACPI_STATE_S1) { 1521 1522 /* Just enter the state. */ 1523 acpi_md_OsDisableInterrupt(); 1524 rv = AcpiEnterSleepState(state); 1525 1526 if (ACPI_FAILURE(rv)) 1527 aprint_error_dev(sc->sc_dev, "failed to " 1528 "enter S1: %s\n", AcpiFormatException(rv)); 1529 1530 (void)AcpiLeaveSleepState(state); 1531 1532 } else { 1533 1534 err = acpi_md_sleep(state); 1535 1536 if (state == ACPI_STATE_S4) 1537 AcpiEnable(); 1538 1539 pmf_system_bus_resume(PMF_Q_NONE); 1540 (void)AcpiLeaveSleepState(state); 1541 pmf_system_resume(PMF_Q_NONE); 1542 } 1543 1544 break; 1545 case ACPI_STATE_S5: 1546 1547 rv = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1548 1549 if (ACPI_FAILURE(rv)) { 1550 aprint_error_dev(sc->sc_dev, "failed to prepare " 1551 "S%d: %s\n", state, AcpiFormatException(rv)); 1552 break; 1553 } 1554 1555 DELAY(1000000); 1556 1557 sc->sc_sleepstate = state; 1558 acpi_md_OsDisableInterrupt(); 1559 1560 (void)AcpiEnterSleepState(ACPI_STATE_S5); 1561 1562 aprint_error_dev(sc->sc_dev, "WARNING: powerdown failed!\n"); 1563 break; 1564 } 1565 1566 sc->sc_sleepstate = ACPI_STATE_S0; 1567 1568 return rv; 1569 } 1570 1571 #ifdef ACPI_ACTIVATE_DEV 1572 1573 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 1574 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 1575 1576 static void 1577 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1578 { 1579 ACPI_DEVICE_INFO *newdi; 1580 ACPI_STATUS rv; 1581 uint32_t old; 1582 1583 /* 1584 * If the device is valid and present, 1585 * but not enabled, try to activate it. 1586 */ 1587 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 1588 return; 1589 1590 old = (*di)->CurrentStatus; 1591 1592 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 1593 return; 1594 1595 rv = acpi_allocate_resources(handle); 1596 1597 if (ACPI_FAILURE(rv)) 1598 goto fail; 1599 1600 rv = AcpiGetObjectInfo(handle, &newdi); 1601 1602 if (ACPI_FAILURE(rv)) 1603 goto fail; 1604 1605 ACPI_FREE(*di); 1606 *di = newdi; 1607 1608 aprint_verbose_dev(acpi_softc->sc_dev, 1609 "%s activated, STA 0x%08X -> STA 0x%08X\n", 1610 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 1611 1612 return; 1613 1614 fail: 1615 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1616 "activate %s\n", (*di)->HardwareId.String); 1617 } 1618 1619 /* 1620 * XXX: This very incomplete. 1621 */ 1622 ACPI_STATUS 1623 acpi_allocate_resources(ACPI_HANDLE handle) 1624 { 1625 ACPI_BUFFER bufp, bufc, bufn; 1626 ACPI_RESOURCE *resp, *resc, *resn; 1627 ACPI_RESOURCE_IRQ *irq; 1628 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1629 ACPI_STATUS rv; 1630 uint delta; 1631 1632 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1633 if (ACPI_FAILURE(rv)) 1634 goto out; 1635 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1636 if (ACPI_FAILURE(rv)) { 1637 goto out1; 1638 } 1639 1640 bufn.Length = 1000; 1641 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1642 resp = bufp.Pointer; 1643 resc = bufc.Pointer; 1644 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1645 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1646 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1647 resp = ACPI_NEXT_RESOURCE(resp); 1648 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1649 break; 1650 /* Found identical Id */ 1651 resn->Type = resc->Type; 1652 switch (resc->Type) { 1653 case ACPI_RESOURCE_TYPE_IRQ: 1654 memcpy(&resn->Data, &resp->Data, 1655 sizeof(ACPI_RESOURCE_IRQ)); 1656 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1657 irq->Interrupts[0] = 1658 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1659 Interrupts[irq->InterruptCount-1]; 1660 irq->InterruptCount = 1; 1661 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1662 break; 1663 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1664 memcpy(&resn->Data, &resp->Data, 1665 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1666 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1667 #if 0 1668 /* 1669 * XXX not duplicating the interrupt logic above 1670 * because its not clear what it accomplishes. 1671 */ 1672 xirq->Interrupts[0] = 1673 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1674 Interrupts[irq->NumberOfInterrupts-1]; 1675 xirq->NumberOfInterrupts = 1; 1676 #endif 1677 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1678 break; 1679 case ACPI_RESOURCE_TYPE_IO: 1680 memcpy(&resn->Data, &resp->Data, 1681 sizeof(ACPI_RESOURCE_IO)); 1682 resn->Length = resp->Length; 1683 break; 1684 default: 1685 aprint_error_dev(acpi_softc->sc_dev, 1686 "%s: invalid type %u\n", __func__, resc->Type); 1687 rv = AE_BAD_DATA; 1688 goto out2; 1689 } 1690 resc = ACPI_NEXT_RESOURCE(resc); 1691 resn = ACPI_NEXT_RESOURCE(resn); 1692 resp = ACPI_NEXT_RESOURCE(resp); 1693 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1694 if (delta >= 1695 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1696 bufn.Length *= 2; 1697 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1698 M_ACPI, M_WAITOK); 1699 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1700 } 1701 } 1702 1703 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1704 aprint_error_dev(acpi_softc->sc_dev, 1705 "%s: resc not exhausted\n", __func__); 1706 rv = AE_BAD_DATA; 1707 goto out3; 1708 } 1709 1710 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1711 rv = AcpiSetCurrentResources(handle, &bufn); 1712 1713 if (ACPI_FAILURE(rv)) 1714 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 1715 "resources: %s\n", __func__, AcpiFormatException(rv)); 1716 1717 out3: 1718 free(bufn.Pointer, M_ACPI); 1719 out2: 1720 ACPI_FREE(bufc.Pointer); 1721 out1: 1722 ACPI_FREE(bufp.Pointer); 1723 out: 1724 return rv; 1725 } 1726 1727 #undef ACPI_DEV_VALID 1728 #undef ACPI_DEV_STATUS 1729 1730 #endif /* ACPI_ACTIVATE_DEV */ 1731 1732 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1733 { 1734 const struct sysctlnode *mnode, *rnode; 1735 int err; 1736 1737 err = sysctl_createv(clog, 0, NULL, &rnode, 1738 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", 1739 NULL, NULL, 0, NULL, 0, 1740 CTL_HW, CTL_EOL); 1741 1742 if (err != 0) 1743 return; 1744 1745 err = sysctl_createv(clog, 0, &rnode, &rnode, 1746 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1747 "acpi", SYSCTL_DESCR("ACPI subsystem parameters"), 1748 NULL, 0, NULL, 0, 1749 CTL_CREATE, CTL_EOL); 1750 1751 if (err != 0) 1752 return; 1753 1754 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1755 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1756 "root", SYSCTL_DESCR("ACPI root pointer"), 1757 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1758 CTL_CREATE, CTL_EOL); 1759 1760 (void)sysctl_createv(NULL, 0, &rnode, NULL, 1761 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_STRING, 1762 "supported_states", SYSCTL_DESCR("Supported system states"), 1763 sysctl_hw_acpi_sleepstates, 0, NULL, 0, 1764 CTL_CREATE, CTL_EOL); 1765 1766 err = sysctl_createv(NULL, 0, NULL, &mnode, 1767 CTLFLAG_PERMANENT, CTLTYPE_NODE, "machdep", 1768 NULL, NULL, 0, NULL, 0, 1769 CTL_MACHDEP, CTL_EOL); 1770 1771 if (err == 0) { 1772 1773 (void)sysctl_createv(NULL, 0, &mnode, NULL, 1774 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, 1775 "sleep_state", SYSCTL_DESCR("System sleep state"), 1776 sysctl_hw_acpi_sleepstate, 0, NULL, 0, 1777 CTL_CREATE, CTL_EOL); 1778 } 1779 1780 err = sysctl_createv(clog, 0, &rnode, &rnode, 1781 CTLFLAG_PERMANENT, CTLTYPE_NODE, 1782 "stat", SYSCTL_DESCR("ACPI statistics"), 1783 NULL, 0, NULL, 0, 1784 CTL_CREATE, CTL_EOL); 1785 1786 if (err != 0) 1787 return; 1788 1789 (void)sysctl_createv(clog, 0, &rnode, NULL, 1790 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1791 "gpe", SYSCTL_DESCR("Number of dispatched GPEs"), 1792 NULL, 0, &AcpiGpeCount, sizeof(AcpiGpeCount), 1793 CTL_CREATE, CTL_EOL); 1794 1795 (void)sysctl_createv(clog, 0, &rnode, NULL, 1796 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1797 "sci", SYSCTL_DESCR("Number of SCI interrupts"), 1798 NULL, 0, &AcpiSciCount, sizeof(AcpiSciCount), 1799 CTL_CREATE, CTL_EOL); 1800 1801 (void)sysctl_createv(clog, 0, &rnode, NULL, 1802 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1803 "fixed", SYSCTL_DESCR("Number of fixed events"), 1804 sysctl_hw_acpi_fixedstats, 0, NULL, 0, 1805 CTL_CREATE, CTL_EOL); 1806 1807 (void)sysctl_createv(clog, 0, &rnode, NULL, 1808 CTLFLAG_PERMANENT | CTLFLAG_READONLY, CTLTYPE_QUAD, 1809 "method", SYSCTL_DESCR("Number of methods executed"), 1810 NULL, 0, &AcpiMethodCount, sizeof(AcpiMethodCount), 1811 CTL_CREATE, CTL_EOL); 1812 1813 CTASSERT(sizeof(AcpiGpeCount) == sizeof(uint64_t)); 1814 CTASSERT(sizeof(AcpiSciCount) == sizeof(uint64_t)); 1815 } 1816 1817 static int 1818 sysctl_hw_acpi_fixedstats(SYSCTLFN_ARGS) 1819 { 1820 struct sysctlnode node; 1821 uint64_t t; 1822 int err, i; 1823 1824 for (i = t = 0; i < __arraycount(AcpiFixedEventCount); i++) 1825 t += AcpiFixedEventCount[i]; 1826 1827 node = *rnode; 1828 node.sysctl_data = &t; 1829 1830 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1831 1832 if (err || newp == NULL) 1833 return err; 1834 1835 return 0; 1836 } 1837 1838 static int 1839 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1840 { 1841 struct acpi_softc *sc = acpi_softc; 1842 struct sysctlnode node; 1843 int err, t; 1844 1845 if (acpi_softc == NULL) 1846 return ENOSYS; 1847 1848 node = *rnode; 1849 t = sc->sc_sleepstate; 1850 node.sysctl_data = &t; 1851 1852 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1853 1854 if (err || newp == NULL) 1855 return err; 1856 1857 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1858 return EINVAL; 1859 1860 acpi_enter_sleep_state(sc, t); 1861 1862 return 0; 1863 } 1864 1865 static int 1866 sysctl_hw_acpi_sleepstates(SYSCTLFN_ARGS) 1867 { 1868 struct acpi_softc *sc = acpi_softc; 1869 struct sysctlnode node; 1870 char t[3 * 6 + 1]; 1871 int err; 1872 1873 if (acpi_softc == NULL) 1874 return ENOSYS; 1875 1876 (void)memset(t, '\0', sizeof(t)); 1877 1878 (void)snprintf(t, sizeof(t), "%s%s%s%s%s%s", 1879 ((sc->sc_sleepstates & __BIT(0)) != 0) ? "S0 " : "", 1880 ((sc->sc_sleepstates & __BIT(1)) != 0) ? "S1 " : "", 1881 ((sc->sc_sleepstates & __BIT(2)) != 0) ? "S2 " : "", 1882 ((sc->sc_sleepstates & __BIT(3)) != 0) ? "S3 " : "", 1883 ((sc->sc_sleepstates & __BIT(4)) != 0) ? "S4 " : "", 1884 ((sc->sc_sleepstates & __BIT(5)) != 0) ? "S5 " : ""); 1885 1886 node = *rnode; 1887 node.sysctl_data = &t; 1888 1889 err = sysctl_lookup(SYSCTLFN_CALL(&node)); 1890 1891 if (err || newp == NULL) 1892 return err; 1893 1894 return 0; 1895 } 1896 1897 static ACPI_TABLE_HEADER * 1898 acpi_map_rsdt(void) 1899 { 1900 ACPI_PHYSICAL_ADDRESS paddr; 1901 ACPI_TABLE_RSDP *rsdp; 1902 1903 paddr = AcpiOsGetRootPointer(); 1904 if (paddr == 0) { 1905 printf("ACPI: couldn't get root pointer\n"); 1906 return NULL; 1907 } 1908 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1909 if (rsdp == NULL) { 1910 printf("ACPI: couldn't map RSDP\n"); 1911 return NULL; 1912 } 1913 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1914 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1915 else 1916 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1917 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1918 1919 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1920 } 1921 1922 static void 1923 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1924 { 1925 if (rsdt == NULL) 1926 return; 1927 1928 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1929 } 1930
Indexes created Thu Sep 25 16:09:42 GMT 2025