acpi.c revision 1.157
1 /* $NetBSD: acpi.c,v 1.157 2010/03/09 18:15:21 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 1.157 2010/03/09 18:15:21 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_TOOLS 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 *); 132 133 static int acpi_print(void *aux, const char *); 134 135 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 136 137 extern struct cfdriver acpi_cd; 138 139 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 140 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 141 142 /* 143 * This is a flag we set when the ACPI subsystem is active. Machine 144 * dependent code may wish to skip other steps (such as attaching 145 * subsystems that ACPI supercedes) when ACPI is active. 146 */ 147 int acpi_active; 148 int acpi_force_load; 149 int acpi_suspended = 0; 150 151 /* 152 * Pointer to the ACPI subsystem's state. There can be only 153 * one ACPI instance. 154 */ 155 struct acpi_softc *acpi_softc; 156 157 /* 158 * Locking stuff. 159 */ 160 extern kmutex_t acpi_interrupt_list_mtx; 161 162 /* 163 * Ignored HIDs. 164 */ 165 static const char * const acpi_ignored_ids[] = { 166 #if defined(i386) || defined(x86_64) 167 "PNP0000", /* AT interrupt controller is handled internally */ 168 "PNP0200", /* AT DMA controller is handled internally */ 169 "PNP0A??", /* PCI Busses are handled internally */ 170 "PNP0B00", /* AT RTC is handled internally */ 171 "PNP0C01", /* No "System Board" driver */ 172 "PNP0C02", /* No "PnP motherboard register resources" driver */ 173 "PNP0C0B", /* No need for "ACPI fan" driver */ 174 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 175 "INT0800", /* Intel HW RNG is handled internally */ 176 #endif 177 #if defined(x86_64) 178 "PNP0C04", /* FPU is handled internally */ 179 #endif 180 NULL 181 }; 182 183 /* 184 * sysctl-related information 185 */ 186 187 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 188 static int acpi_sleepstate = ACPI_STATE_S0; 189 static char acpi_supported_states[3 * 6 + 1] = ""; 190 191 /* 192 * Prototypes. 193 */ 194 static void acpi_build_tree(struct acpi_softc *); 195 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 196 void *, void **); 197 198 static void acpi_enable_fixed_events(struct acpi_softc *); 199 200 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 201 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 202 static int is_available_state(struct acpi_softc *, int); 203 204 static bool acpi_suspend(device_t, const pmf_qual_t *); 205 static bool acpi_resume(device_t, const pmf_qual_t *); 206 207 /* 208 * acpi_probe: 209 * 210 * Probe for ACPI support. This is called by the 211 * machine-dependent ACPI front-end. All of the 212 * actual work is done by ACPICA. 213 * 214 * NOTE: This is not an autoconfiguration interface function. 215 */ 216 int 217 acpi_probe(void) 218 { 219 static int beenhere; 220 ACPI_TABLE_HEADER *rsdt; 221 ACPI_STATUS rv; 222 223 if (beenhere != 0) 224 panic("acpi_probe: ACPI has already been probed"); 225 beenhere = 1; 226 227 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 228 229 /* 230 * Start up ACPICA. 231 */ 232 #ifdef ACPI_DEBUGGER 233 if (acpi_dbgr & ACPI_DBGR_INIT) 234 acpi_osd_debugger(); 235 #endif 236 237 AcpiGbl_AllMethodsSerialized = FALSE; 238 AcpiGbl_EnableInterpreterSlack = TRUE; 239 240 rv = AcpiInitializeSubsystem(); 241 if (ACPI_FAILURE(rv)) { 242 printf("ACPI: unable to initialize ACPICA: %s\n", 243 AcpiFormatException(rv)); 244 return 0; 245 } 246 247 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 248 if (ACPI_FAILURE(rv)) { 249 #ifdef ACPI_DEBUG 250 printf("ACPI: unable to initialize ACPI tables: %s\n", 251 AcpiFormatException(rv)); 252 #endif 253 AcpiTerminate(); 254 return 0; 255 } 256 257 rv = AcpiReallocateRootTable(); 258 if (ACPI_FAILURE(rv)) { 259 printf("ACPI: unable to reallocate root table: %s\n", 260 AcpiFormatException(rv)); 261 AcpiTerminate(); 262 return 0; 263 } 264 265 #ifdef ACPI_DEBUGGER 266 if (acpi_dbgr & ACPI_DBGR_TABLES) 267 acpi_osd_debugger(); 268 #endif 269 270 rv = AcpiLoadTables(); 271 if (ACPI_FAILURE(rv)) { 272 printf("ACPI: unable to load tables: %s\n", 273 AcpiFormatException(rv)); 274 AcpiTerminate(); 275 return 0; 276 } 277 278 rsdt = acpi_map_rsdt(); 279 if (rsdt == NULL) { 280 printf("ACPI: unable to map RSDT\n"); 281 AcpiTerminate(); 282 return 0; 283 } 284 285 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 286 printf("ACPI: BIOS implementation in listed as broken:\n"); 287 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 288 "AslId <%4.4s,%08x>\n", 289 rsdt->OemId, rsdt->OemTableId, 290 rsdt->OemRevision, 291 rsdt->AslCompilerId, 292 rsdt->AslCompilerRevision); 293 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 294 acpi_unmap_rsdt(rsdt); 295 AcpiTerminate(); 296 return 0; 297 } 298 299 acpi_unmap_rsdt(rsdt); 300 301 #if notyet 302 /* Install the default address space handlers. */ 303 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 304 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 305 if (ACPI_FAILURE(rv)) { 306 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 307 AcpiFormatException(rv)); 308 AcpiTerminate(); 309 return 0; 310 } 311 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 312 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 313 if (ACPI_FAILURE(rv)) { 314 printf("ACPI: unable to initialize SystemIO handler: %s\n", 315 AcpiFormatException(rv)); 316 AcpiTerminate(); 317 return 0; 318 } 319 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 320 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 321 if (ACPI_FAILURE(rv)) { 322 printf("ACPI: unable to initialize PciConfig handler: %s\n", 323 AcpiFormatException(rv)); 324 AcpiTerminate(); 325 return 0; 326 } 327 #endif 328 329 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 330 if (ACPI_FAILURE(rv)) { 331 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 332 AcpiTerminate(); 333 return 0; 334 } 335 336 /* 337 * Looks like we have ACPI! 338 */ 339 340 return 1; 341 } 342 343 static int 344 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 345 { 346 struct cfattach *ca; 347 348 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 349 return (ca == &acpi_ca); 350 } 351 352 int 353 acpi_check(device_t parent, const char *ifattr) 354 { 355 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 356 } 357 358 ACPI_PHYSICAL_ADDRESS 359 acpi_OsGetRootPointer(void) 360 { 361 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 362 363 /* 364 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 365 * 366 * IA-64: Use the EFI. 367 * 368 * We let MD code handle this since there are multiple 369 * ways to do it. 370 */ 371 372 PhysicalAddress = acpi_md_OsGetRootPointer(); 373 374 if (acpi_root_pointer == 0) 375 acpi_root_pointer = PhysicalAddress; 376 377 return PhysicalAddress; 378 } 379 380 /* 381 * acpi_match: 382 * 383 * Autoconfiguration `match' routine. 384 */ 385 static int 386 acpi_match(device_t parent, cfdata_t match, void *aux) 387 { 388 /* 389 * XXX Check other locators? Hard to know -- machine 390 * dependent code has already checked for the presence 391 * of ACPI by calling acpi_probe(), so I suppose we 392 * don't really have to do anything else. 393 */ 394 return 1; 395 } 396 397 /* Remove references to child devices. 398 * 399 * XXX Need to reclaim any resources? 400 */ 401 static void 402 acpi_childdet(device_t self, device_t child) 403 { 404 struct acpi_softc *sc = device_private(self); 405 struct acpi_devnode *ad; 406 407 if (sc->sc_apmbus == child) 408 sc->sc_apmbus = NULL; 409 410 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 411 412 if (ad->ad_device == child) 413 ad->ad_device = NULL; 414 } 415 } 416 417 /* 418 * acpi_attach: 419 * 420 * Autoconfiguration `attach' routine. Finish initializing 421 * ACPICA (some initialization was done in acpi_probe(), 422 * which was required to check for the presence of ACPI), 423 * and enable the ACPI subsystem. 424 */ 425 static void 426 acpi_attach(device_t parent, device_t self, void *aux) 427 { 428 struct acpi_softc *sc = device_private(self); 429 struct acpibus_attach_args *aa = aux; 430 ACPI_STATUS rv; 431 ACPI_TABLE_HEADER *rsdt; 432 433 aprint_naive("\n"); 434 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 435 436 if (acpi_softc != NULL) 437 panic("acpi_attach: ACPI has already been attached"); 438 439 sysmon_power_settype("acpi"); 440 441 rsdt = acpi_map_rsdt(); 442 if (rsdt) { 443 aprint_verbose_dev( 444 self, 445 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 446 rsdt->OemId, rsdt->OemTableId, 447 rsdt->OemRevision, 448 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 449 } else 450 aprint_error_dev(self, "X/RSDT: Not found\n"); 451 452 acpi_unmap_rsdt(rsdt); 453 454 sc->sc_dev = self; 455 sc->sc_quirks = acpi_find_quirks(); 456 457 sc->sc_iot = aa->aa_iot; 458 sc->sc_memt = aa->aa_memt; 459 sc->sc_pc = aa->aa_pc; 460 sc->sc_pciflags = aa->aa_pciflags; 461 sc->sc_ic = aa->aa_ic; 462 463 SIMPLEQ_INIT(&sc->sc_devnodes); 464 465 acpi_softc = sc; 466 467 /* 468 * Register null power management handler. 469 */ 470 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 471 aprint_error_dev(self, "couldn't establish power handler\n"); 472 473 /* 474 * Bring ACPI on-line. 475 */ 476 #ifdef ACPI_DEBUGGER 477 if (acpi_dbgr & ACPI_DBGR_ENABLE) 478 acpi_osd_debugger(); 479 #endif 480 481 #define ACPI_ENABLE_PHASE1 \ 482 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 483 #define ACPI_ENABLE_PHASE2 \ 484 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 485 ACPI_NO_ADDRESS_SPACE_INIT) 486 487 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 488 if (ACPI_FAILURE(rv)) { 489 aprint_error_dev(self, "unable to enable ACPI: %s\n", 490 AcpiFormatException(rv)); 491 return; 492 } 493 494 acpi_md_callback(); 495 496 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 497 if (ACPI_FAILURE(rv)) { 498 aprint_error_dev(self, "unable to enable ACPI: %s\n", 499 AcpiFormatException(rv)); 500 return; 501 } 502 503 /* Early EC handler initialization if ECDT table is available. */ 504 config_found_ia(self, "acpiecdtbus", NULL, NULL); 505 506 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 507 if (ACPI_FAILURE(rv)) { 508 aprint_error_dev(self, 509 "unable to initialize ACPI objects: %s\n", 510 AcpiFormatException(rv)); 511 return; 512 } 513 acpi_active = 1; 514 515 /* Our current state is "awake". */ 516 sc->sc_sleepstate = ACPI_STATE_S0; 517 518 /* Show SCI interrupt. */ 519 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 520 AcpiGbl_FADT.SciInterrupt); 521 522 /* 523 * Check for fixed-hardware features. 524 */ 525 acpi_enable_fixed_events(sc); 526 acpitimer_init(); 527 528 /* 529 * Scan the namespace and build our device tree. 530 */ 531 #ifdef ACPI_DEBUGGER 532 if (acpi_dbgr & ACPI_DBGR_PROBE) 533 acpi_osd_debugger(); 534 #endif 535 acpi_build_tree(sc); 536 537 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 538 "%s%s%s%s%s%s", 539 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 540 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 541 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 542 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 543 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 544 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 545 546 #ifdef ACPI_DEBUGGER 547 if (acpi_dbgr & ACPI_DBGR_RUNNING) 548 acpi_osd_debugger(); 549 #endif 550 551 #ifdef ACPI_DEBUG 552 acpi_debug_init(); 553 #endif 554 } 555 556 static int 557 acpi_detach(device_t self, int flags) 558 { 559 int rc; 560 561 #ifdef ACPI_DEBUGGER 562 if (acpi_dbgr & ACPI_DBGR_RUNNING) 563 acpi_osd_debugger(); 564 #endif 565 566 if ((rc = config_detach_children(self, flags)) != 0) 567 return rc; 568 569 #ifdef ACPI_DEBUGGER 570 if (acpi_dbgr & ACPI_DBGR_PROBE) 571 acpi_osd_debugger(); 572 #endif 573 574 if ((rc = acpitimer_detach()) != 0) 575 return rc; 576 577 #if 0 578 /* 579 * Bring ACPI on-line. 580 */ 581 #ifdef ACPI_DEBUGGER 582 if (acpi_dbgr & ACPI_DBGR_ENABLE) 583 acpi_osd_debugger(); 584 #endif 585 586 #define ACPI_ENABLE_PHASE1 \ 587 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 588 #define ACPI_ENABLE_PHASE2 \ 589 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 590 ACPI_NO_ADDRESS_SPACE_INIT) 591 592 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 593 if (ACPI_FAILURE(rv)) { 594 aprint_error_dev(self, "unable to enable ACPI: %s\n", 595 AcpiFormatException(rv)); 596 return; 597 } 598 599 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 600 if (ACPI_FAILURE(rv)) { 601 aprint_error_dev(self, "unable to enable ACPI: %s\n", 602 AcpiFormatException(rv)); 603 return; 604 } 605 606 /* Early EC handler initialization if ECDT table is available. */ 607 config_found_ia(self, "acpiecdtbus", NULL, NULL); 608 609 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 610 if (ACPI_FAILURE(rv)) { 611 aprint_error_dev(self, 612 "unable to initialize ACPI objects: %s\n", 613 AcpiFormatException(rv)); 614 return; 615 } 616 acpi_active = 1; 617 618 acpi_enable_fixed_events(sc); 619 #endif 620 621 pmf_device_deregister(self); 622 623 #if 0 624 sysmon_power_settype("acpi"); 625 #endif 626 acpi_softc = NULL; 627 628 return 0; 629 } 630 631 static bool 632 acpi_suspend(device_t dv, const pmf_qual_t *qual) 633 { 634 acpi_suspended = 1; 635 return true; 636 } 637 638 static bool 639 acpi_resume(device_t dv, const pmf_qual_t *qual) 640 { 641 acpi_suspended = 0; 642 return true; 643 } 644 645 #if 0 646 /* 647 * acpi_disable: 648 * 649 * Disable ACPI. 650 */ 651 static ACPI_STATUS 652 acpi_disable(struct acpi_softc *sc) 653 { 654 ACPI_STATUS rv = AE_OK; 655 656 if (acpi_active) { 657 rv = AcpiDisable(); 658 if (ACPI_SUCCESS(rv)) 659 acpi_active = 0; 660 } 661 return rv; 662 } 663 #endif 664 665 /* 666 * acpi_build_tree: 667 * 668 * Scan relevant portions of the ACPI namespace and attach 669 * child devices. 670 */ 671 static void 672 acpi_build_tree(struct acpi_softc *sc) 673 { 674 static const char *scopes[] = { 675 "\\_PR_", "\\_SB_", "\\_SI_", "\\_TZ_", NULL 676 }; 677 678 ACPI_HANDLE parent; 679 ACPI_STATUS rv; 680 int i; 681 682 /* 683 * Scan the namespace and build our device tree. 684 */ 685 for (i = 0; scopes[i] != NULL; i++) { 686 687 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], &parent); 688 689 if (ACPI_SUCCESS(rv)) 690 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 691 acpi_make_devnode, sc, NULL); 692 } 693 694 acpi_rescan1(sc, NULL, NULL); 695 acpi_wakedev_scan(sc); 696 acpi_pcidev_scan(sc); 697 } 698 699 static int 700 acpi_rescan(device_t self, const char *ifattr, const int *locators) 701 { 702 struct acpi_softc *sc = device_private(self); 703 704 acpi_rescan1(sc, ifattr, locators); 705 return 0; 706 } 707 708 static void 709 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 710 { 711 if (ifattr_match(ifattr, "acpinodebus")) 712 acpi_rescan_nodes(sc); 713 714 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 715 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 716 NULL); 717 } 718 } 719 720 static void 721 acpi_rescan_nodes(struct acpi_softc *sc) 722 { 723 struct acpi_attach_args aa; 724 struct acpi_devnode *ad; 725 726 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 727 728 if (ad->ad_device != NULL) 729 continue; 730 731 aa.aa_node = ad; 732 aa.aa_iot = sc->sc_iot; 733 aa.aa_memt = sc->sc_memt; 734 aa.aa_pc = sc->sc_pc; 735 aa.aa_pciflags = sc->sc_pciflags; 736 aa.aa_ic = sc->sc_ic; 737 738 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 739 /* 740 * XXX We only attach devices which are: 741 * 742 * - present 743 * - enabled 744 * - functioning properly 745 * 746 * However, if enabled, it's decoding resources, 747 * so we should claim them, if possible. 748 * Requires changes to bus_space(9). 749 */ 750 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 751 ACPI_VALID_STA && 752 (ad->ad_devinfo->CurrentStatus & 753 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 754 ACPI_STA_DEV_OK)) != 755 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 756 ACPI_STA_DEV_OK)) 757 continue; 758 } 759 760 /* 761 * XXX Same problem as above... 762 * 763 * Do this check only for devices, as e.g. 764 * a Thermal Zone doesn't have a HID. 765 */ 766 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 767 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 768 continue; 769 770 /* 771 * Handled internally. 772 */ 773 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 774 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 775 continue; 776 777 /* 778 * Skip ignored HIDs. 779 */ 780 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 781 continue; 782 783 ad->ad_device = config_found_ia(sc->sc_dev, 784 "acpinodebus", &aa, acpi_print); 785 } 786 } 787 788 #ifdef ACPI_ACTIVATE_DEV 789 static void 790 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 791 { 792 ACPI_STATUS rv; 793 ACPI_DEVICE_INFO *newdi; 794 795 #ifdef ACPI_DEBUG 796 aprint_normal("%s: %s, old status=%x\n", __func__, 797 (*di)->HardwareId.String, (*di)->CurrentStatus); 798 #endif 799 800 rv = acpi_allocate_resources(handle); 801 if (ACPI_FAILURE(rv)) { 802 aprint_error("acpi: activate failed for %s\n", 803 (*di)->HardwareId.String); 804 } else { 805 aprint_verbose("acpi: activated %s\n", 806 (*di)->HardwareId.String); 807 } 808 809 (void)AcpiGetObjectInfo(handle, &newdi); 810 ACPI_FREE(*di); 811 *di = newdi; 812 813 #ifdef ACPI_DEBUG 814 aprint_normal("%s: %s, new status=%x\n", __func__, 815 (*di)->HardwareId.String, (*di)->CurrentStatus); 816 #endif 817 } 818 #endif /* ACPI_ACTIVATE_DEV */ 819 820 /* 821 * acpi_make_devnode: 822 * 823 * Make an ACPI devnode. 824 */ 825 static ACPI_STATUS 826 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 827 void *context, void **status) 828 { 829 struct acpi_softc *sc = context; 830 struct acpi_devnode *ad; 831 ACPI_DEVICE_INFO *devinfo; 832 ACPI_OBJECT_TYPE type; 833 ACPI_NAME_UNION *anu; 834 ACPI_STATUS rv; 835 int clear, i; 836 837 rv = AcpiGetType(handle, &type); 838 839 if (ACPI_FAILURE(rv)) 840 return AE_OK; /* Do not terminate the walk. */ 841 842 rv = AcpiGetObjectInfo(handle, &devinfo); 843 844 if (ACPI_FAILURE(rv)) { 845 aprint_debug_dev(sc->sc_dev, "failed to get object " 846 "information: %s\n", AcpiFormatException(rv)); 847 return AE_OK; 848 } 849 850 switch (type) { 851 852 case ACPI_TYPE_DEVICE: 853 854 #ifdef ACPI_ACTIVATE_DEV 855 if ((devinfo->Valid & (ACPI_VALID_STA | ACPI_VALID_HID)) == 856 (ACPI_VALID_STA | ACPI_VALID_HID) && 857 (devinfo->CurrentStatus & 858 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED)) == 859 ACPI_STA_DEV_PRESENT) 860 acpi_activate_device(handle, &devinfo); 861 862 /* FALLTHROUGH */ 863 #endif 864 865 case ACPI_TYPE_PROCESSOR: 866 case ACPI_TYPE_THERMAL: 867 case ACPI_TYPE_POWER: 868 869 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 870 871 if (ad == NULL) 872 return AE_NO_MEMORY; 873 874 ad->ad_parent = sc->sc_dev; 875 ad->ad_devinfo = devinfo; 876 ad->ad_handle = handle; 877 ad->ad_type = type; 878 879 anu = (ACPI_NAME_UNION *)&devinfo->Name; 880 ad->ad_name[4] = '\0'; 881 882 for (i = 3, clear = 0; i >= 0; i--) { 883 884 if (clear == 0 && anu->Ascii[i] == '_') 885 ad->ad_name[i] = '\0'; 886 else { 887 ad->ad_name[i] = anu->Ascii[i]; 888 clear = 1; 889 } 890 } 891 892 if (ad->ad_name[0] == '\0') 893 ad->ad_name[0] = '_'; 894 895 SIMPLEQ_INSERT_TAIL(&sc->sc_devnodes, ad, ad_list); 896 897 if (type != ACPI_TYPE_DEVICE) 898 return AE_OK; 899 900 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 901 return AE_OK; 902 903 #ifdef ACPIVERBOSE 904 aprint_normal(" HID %s\n", 905 ad->ad_devinfo->HardwareId.String); 906 907 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 908 aprint_normal(" UID %s\n", 909 ad->ad_devinfo->UniqueId.String); 910 911 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 912 aprint_normal(" ADR 0x%016" PRIx64 "\n", 913 ad->ad_devinfo->Address); 914 915 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 916 aprint_normal(" STA 0x%08x\n", 917 ad->ad_devinfo->CurrentStatus); 918 #endif 919 } 920 921 return AE_OK; 922 } 923 924 /* 925 * acpi_print: 926 * 927 * Autoconfiguration print routine for ACPI node bus. 928 */ 929 static int 930 acpi_print(void *aux, const char *pnp) 931 { 932 struct acpi_attach_args *aa = aux; 933 ACPI_STATUS rv; 934 935 if (pnp) { 936 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 937 char *pnpstr = 938 aa->aa_node->ad_devinfo->HardwareId.String; 939 ACPI_BUFFER buf; 940 941 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 942 pnpstr); 943 944 rv = acpi_eval_struct(aa->aa_node->ad_handle, 945 "_STR", &buf); 946 if (ACPI_SUCCESS(rv)) { 947 ACPI_OBJECT *obj = buf.Pointer; 948 switch (obj->Type) { 949 case ACPI_TYPE_STRING: 950 aprint_normal("[%s] ", obj->String.Pointer); 951 break; 952 case ACPI_TYPE_BUFFER: 953 aprint_normal("buffer %p ", obj->Buffer.Pointer); 954 break; 955 default: 956 aprint_normal("type %u ",obj->Type); 957 break; 958 } 959 ACPI_FREE(buf.Pointer); 960 } 961 #ifdef ACPIVERBOSE 962 else { 963 int i; 964 965 for (i = 0; i < __arraycount(acpi_knowndevs); 966 i++) { 967 if (strcmp(acpi_knowndevs[i].pnp, 968 pnpstr) == 0) { 969 aprint_normal("[%s] ", 970 acpi_knowndevs[i].str); 971 } 972 } 973 } 974 975 #endif 976 aprint_normal("at %s", pnp); 977 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 978 aprint_normal("%s (ACPI Object Type '%s' " 979 "[0x%02x]) ", aa->aa_node->ad_name, 980 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 981 aa->aa_node->ad_devinfo->Type); 982 aprint_normal("at %s", pnp); 983 } else 984 return 0; 985 } else { 986 aprint_normal(" (%s", aa->aa_node->ad_name); 987 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 988 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 989 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 990 const char *uid; 991 992 uid = aa->aa_node->ad_devinfo->UniqueId.String; 993 if (uid[0] == '\0') 994 uid = "<null>"; 995 aprint_normal("-%s", uid); 996 } 997 } 998 aprint_normal(")"); 999 } 1000 1001 return UNCONF; 1002 } 1003 1004 /***************************************************************************** 1005 * ACPI fixed-hardware feature handlers 1006 *****************************************************************************/ 1007 1008 static UINT32 acpi_fixed_button_handler(void *); 1009 static void acpi_fixed_button_pressed(void *); 1010 1011 /* 1012 * acpi_enable_fixed_events: 1013 * 1014 * Enable any fixed-hardware feature handlers. 1015 */ 1016 static void 1017 acpi_enable_fixed_events(struct acpi_softc *sc) 1018 { 1019 static int beenhere; 1020 ACPI_STATUS rv; 1021 1022 KASSERT(beenhere == 0); 1023 beenhere = 1; 1024 1025 /* 1026 * Check for fixed-hardware buttons. 1027 */ 1028 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1029 aprint_verbose_dev(sc->sc_dev, 1030 "fixed-feature power button present\n"); 1031 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1032 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1033 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1034 aprint_error_dev(sc->sc_dev, 1035 "unable to register fixed power " 1036 "button with sysmon\n"); 1037 } else { 1038 rv = AcpiInstallFixedEventHandler( 1039 ACPI_EVENT_POWER_BUTTON, 1040 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1041 if (ACPI_FAILURE(rv)) { 1042 aprint_error_dev(sc->sc_dev, 1043 "unable to install handler " 1044 "for fixed power button: %s\n", 1045 AcpiFormatException(rv)); 1046 } 1047 } 1048 } 1049 1050 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1051 aprint_verbose_dev(sc->sc_dev, 1052 "fixed-feature sleep button present\n"); 1053 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1054 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1055 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1056 aprint_error_dev(sc->sc_dev, 1057 "unable to register fixed sleep " 1058 "button with sysmon\n"); 1059 } else { 1060 rv = AcpiInstallFixedEventHandler( 1061 ACPI_EVENT_SLEEP_BUTTON, 1062 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1063 if (ACPI_FAILURE(rv)) { 1064 aprint_error_dev(sc->sc_dev, 1065 "unable to install handler " 1066 "for fixed sleep button: %s\n", 1067 AcpiFormatException(rv)); 1068 } 1069 } 1070 } 1071 } 1072 1073 /* 1074 * acpi_fixed_button_handler: 1075 * 1076 * Event handler for the fixed buttons. 1077 */ 1078 static UINT32 1079 acpi_fixed_button_handler(void *context) 1080 { 1081 static const int handler = OSL_NOTIFY_HANDLER; 1082 struct sysmon_pswitch *smpsw = context; 1083 1084 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s\n", __func__)); 1085 1086 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1087 1088 return ACPI_INTERRUPT_HANDLED; 1089 } 1090 1091 /* 1092 * acpi_fixed_button_pressed: 1093 * 1094 * Deal with a fixed button being pressed. 1095 */ 1096 static void 1097 acpi_fixed_button_pressed(void *context) 1098 { 1099 struct sysmon_pswitch *smpsw = context; 1100 1101 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1102 __func__, smpsw->smpsw_name)); 1103 1104 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1105 } 1106 1107 /***************************************************************************** 1108 * ACPI utility routines. 1109 *****************************************************************************/ 1110 1111 /* 1112 * acpi_eval_integer: 1113 * 1114 * Evaluate an integer object. 1115 */ 1116 ACPI_STATUS 1117 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1118 { 1119 ACPI_STATUS rv; 1120 ACPI_BUFFER buf; 1121 ACPI_OBJECT param; 1122 1123 if (handle == NULL) 1124 handle = ACPI_ROOT_OBJECT; 1125 1126 buf.Pointer = ¶m; 1127 buf.Length = sizeof(param); 1128 1129 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1130 ACPI_TYPE_INTEGER); 1131 if (ACPI_SUCCESS(rv)) 1132 *valp = param.Integer.Value; 1133 1134 return rv; 1135 } 1136 1137 /* 1138 * acpi_eval_set_integer: 1139 * 1140 * Evaluate an integer object with a single integer input parameter. 1141 */ 1142 ACPI_STATUS 1143 acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1144 { 1145 ACPI_OBJECT param_arg; 1146 ACPI_OBJECT_LIST param_args; 1147 1148 if (handle == NULL) 1149 handle = ACPI_ROOT_OBJECT; 1150 1151 param_arg.Type = ACPI_TYPE_INTEGER; 1152 param_arg.Integer.Value = arg; 1153 1154 param_args.Count = 1; 1155 param_args.Pointer = ¶m_arg; 1156 1157 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1158 } 1159 1160 /* 1161 * acpi_eval_string: 1162 * 1163 * Evaluate a (Unicode) string object. 1164 */ 1165 ACPI_STATUS 1166 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1167 { 1168 ACPI_OBJECT *obj; 1169 ACPI_BUFFER buf; 1170 ACPI_STATUS rv; 1171 1172 rv = acpi_eval_struct(handle, path, &buf); 1173 1174 if (ACPI_FAILURE(rv)) 1175 return rv; 1176 1177 obj = buf.Pointer; 1178 1179 if (obj->Type != ACPI_TYPE_STRING) { 1180 rv = AE_TYPE; 1181 goto out; 1182 } 1183 1184 if (obj->String.Length == 0) { 1185 rv = AE_BAD_DATA; 1186 goto out; 1187 } 1188 1189 *stringp = ACPI_ALLOCATE(obj->String.Length + 1); 1190 1191 if (*stringp == NULL) { 1192 rv = AE_NO_MEMORY; 1193 goto out; 1194 } 1195 1196 (void)memcpy(*stringp, obj->String.Pointer, obj->String.Length); 1197 1198 (*stringp)[obj->String.Length] = '\0'; 1199 1200 out: 1201 ACPI_FREE(buf.Pointer); 1202 1203 return rv; 1204 } 1205 1206 /* 1207 * acpi_eval_struct: 1208 * 1209 * Evaluate a more complex structure. 1210 * Caller must free buf.Pointer by ACPI_FREE(). 1211 */ 1212 ACPI_STATUS 1213 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1214 { 1215 ACPI_STATUS rv; 1216 1217 if (handle == NULL) 1218 handle = ACPI_ROOT_OBJECT; 1219 1220 bufp->Pointer = NULL; 1221 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1222 1223 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1224 1225 return rv; 1226 } 1227 1228 /* 1229 * acpi_eval_reference_handle: 1230 * 1231 * Evaluate a reference handle from an element in a package. 1232 */ 1233 ACPI_STATUS 1234 acpi_eval_reference_handle(ACPI_OBJECT *elm, ACPI_HANDLE *handle) 1235 { 1236 1237 if (elm == NULL || handle == NULL) 1238 return AE_BAD_PARAMETER; 1239 1240 switch (elm->Type) { 1241 1242 case ACPI_TYPE_ANY: 1243 case ACPI_TYPE_LOCAL_REFERENCE: 1244 1245 if (elm->Reference.Handle == NULL) 1246 return AE_NULL_ENTRY; 1247 1248 *handle = elm->Reference.Handle; 1249 1250 return AE_OK; 1251 1252 case ACPI_TYPE_STRING: 1253 return AcpiGetHandle(NULL, elm->String.Pointer, handle); 1254 1255 default: 1256 return AE_TYPE; 1257 } 1258 } 1259 1260 /* 1261 * acpi_foreach_package_object: 1262 * 1263 * Iterate over all objects in a package, and pass them all 1264 * to a function. If the called function returns non AE_OK, the 1265 * iteration is stopped and that value is returned. 1266 */ 1267 ACPI_STATUS 1268 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1269 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1270 void *arg) 1271 { 1272 ACPI_STATUS rv = AE_OK; 1273 int i; 1274 1275 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1276 return AE_BAD_PARAMETER; 1277 1278 for (i = 0; i < pkg->Package.Count; i++) { 1279 rv = (*func)(&pkg->Package.Elements[i], arg); 1280 if (ACPI_FAILURE(rv)) 1281 break; 1282 } 1283 1284 return rv; 1285 } 1286 1287 /* 1288 * acpi_name: 1289 * 1290 * Return a complete pathname from a handle. 1291 * 1292 * Note that the function uses static data storage; 1293 * if the data is needed for future use, it should be 1294 * copied before any subsequent calls overwrite it. 1295 */ 1296 const char * 1297 acpi_name(ACPI_HANDLE handle) 1298 { 1299 static char buffer[80]; 1300 ACPI_BUFFER buf; 1301 ACPI_STATUS rv; 1302 1303 buf.Length = sizeof(buffer); 1304 buf.Pointer = buffer; 1305 1306 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1307 if (ACPI_FAILURE(rv)) 1308 return "(unknown acpi path)"; 1309 return buffer; 1310 } 1311 1312 /* 1313 * acpi_get: 1314 * 1315 * Fetch data info the specified (empty) ACPI buffer. 1316 * Caller must free buf.Pointer by ACPI_FREE(). 1317 */ 1318 ACPI_STATUS 1319 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1320 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1321 { 1322 buf->Pointer = NULL; 1323 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1324 1325 return (*getit)(handle, buf); 1326 } 1327 1328 1329 /* 1330 * acpi_match_hid 1331 * 1332 * Match given ids against _HID and _CIDs. 1333 */ 1334 int 1335 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1336 { 1337 int i; 1338 1339 while (*ids) { 1340 if (ad->Valid & ACPI_VALID_HID) { 1341 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1342 return 1; 1343 } 1344 1345 if (ad->Valid & ACPI_VALID_CID) { 1346 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1347 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1348 return 1; 1349 } 1350 } 1351 ids++; 1352 } 1353 1354 return 0; 1355 } 1356 1357 /* 1358 * acpi_wake_gpe_helper 1359 * 1360 * Set/unset GPE as both Runtime and Wake. 1361 */ 1362 static void 1363 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1364 { 1365 ACPI_OBJECT *elm, *obj; 1366 ACPI_INTEGER val; 1367 ACPI_BUFFER buf; 1368 ACPI_STATUS rv; 1369 1370 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1371 1372 if (ACPI_FAILURE(rv)) 1373 return; 1374 1375 obj = buf.Pointer; 1376 1377 if (obj->Type != ACPI_TYPE_PACKAGE || obj->Package.Count < 2) 1378 goto out; 1379 1380 /* 1381 * As noted in ACPI 3.0 (section 7.2.10), the _PRW object is 1382 * a package in which the first element is either an integer 1383 * or again a package. In the latter case the package inside 1384 * the package element has two elements, a reference handle 1385 * and the GPE number. 1386 */ 1387 elm = &obj->Package.Elements[0]; 1388 1389 switch (elm->Type) { 1390 1391 case ACPI_TYPE_INTEGER: 1392 val = elm->Integer.Value; 1393 break; 1394 1395 case ACPI_TYPE_PACKAGE: 1396 1397 if (elm->Package.Count < 2) 1398 goto out; 1399 1400 if (elm->Package.Elements[0].Type != ACPI_TYPE_LOCAL_REFERENCE) 1401 goto out; 1402 1403 if (elm->Package.Elements[1].Type != ACPI_TYPE_INTEGER) 1404 goto out; 1405 1406 val = elm->Package.Elements[1].Integer.Value; 1407 break; 1408 1409 default: 1410 goto out; 1411 } 1412 1413 if (enable) { 1414 (void)AcpiSetGpeType(NULL, val, ACPI_GPE_TYPE_WAKE_RUN); 1415 (void)AcpiEnableGpe(NULL, val, ACPI_NOT_ISR); 1416 } else 1417 (void)AcpiDisableGpe(NULL, val, ACPI_NOT_ISR); 1418 1419 out: 1420 ACPI_FREE(buf.Pointer); 1421 } 1422 1423 /* 1424 * acpi_clear_wake_gpe 1425 * 1426 * Clear GPE as both Runtime and Wake. 1427 */ 1428 void 1429 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1430 { 1431 acpi_wake_gpe_helper(handle, false); 1432 } 1433 1434 /* 1435 * acpi_set_wake_gpe 1436 * 1437 * Set GPE as both Runtime and Wake. 1438 */ 1439 void 1440 acpi_set_wake_gpe(ACPI_HANDLE handle) 1441 { 1442 acpi_wake_gpe_helper(handle, true); 1443 } 1444 1445 1446 /***************************************************************************** 1447 * ACPI sleep support. 1448 *****************************************************************************/ 1449 1450 static int 1451 is_available_state(struct acpi_softc *sc, int state) 1452 { 1453 UINT8 type_a, type_b; 1454 1455 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1456 &type_a, &type_b)); 1457 } 1458 1459 /* 1460 * acpi_enter_sleep_state: 1461 * 1462 * Enter to the specified sleep state. 1463 */ 1464 1465 ACPI_STATUS 1466 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1467 { 1468 int err; 1469 ACPI_STATUS ret = AE_OK; 1470 1471 if (state == acpi_sleepstate) 1472 return AE_OK; 1473 1474 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1475 1476 switch (state) { 1477 case ACPI_STATE_S0: 1478 break; 1479 case ACPI_STATE_S1: 1480 case ACPI_STATE_S2: 1481 case ACPI_STATE_S3: 1482 case ACPI_STATE_S4: 1483 if (!is_available_state(sc, state)) { 1484 aprint_error_dev(sc->sc_dev, 1485 "ACPI S%d not available on this platform\n", state); 1486 break; 1487 } 1488 1489 acpi_wakedev_commit(sc, state); 1490 1491 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) { 1492 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1493 break; 1494 } 1495 1496 ret = AcpiEnterSleepStatePrep(state); 1497 if (ACPI_FAILURE(ret)) { 1498 aprint_error_dev(sc->sc_dev, 1499 "failed preparing to sleep (%s)\n", 1500 AcpiFormatException(ret)); 1501 break; 1502 } 1503 1504 acpi_sleepstate = state; 1505 if (state == ACPI_STATE_S1) { 1506 /* just enter the state */ 1507 acpi_md_OsDisableInterrupt(); 1508 ret = AcpiEnterSleepState((UINT8)state); 1509 if (ACPI_FAILURE(ret)) 1510 aprint_error_dev(sc->sc_dev, 1511 "failed to enter sleep state S1: %s\n", 1512 AcpiFormatException(ret)); 1513 AcpiLeaveSleepState((UINT8)state); 1514 } else { 1515 err = acpi_md_sleep(state); 1516 if (state == ACPI_STATE_S4) 1517 AcpiEnable(); 1518 pmf_system_bus_resume(PMF_Q_NONE); 1519 AcpiLeaveSleepState((UINT8)state); 1520 pmf_system_resume(PMF_Q_NONE); 1521 } 1522 1523 break; 1524 case ACPI_STATE_S5: 1525 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1526 if (ACPI_FAILURE(ret)) { 1527 aprint_error_dev(sc->sc_dev, 1528 "failed preparing to sleep (%s)\n", 1529 AcpiFormatException(ret)); 1530 break; 1531 } 1532 DELAY(1000000); 1533 acpi_sleepstate = state; 1534 acpi_md_OsDisableInterrupt(); 1535 AcpiEnterSleepState(ACPI_STATE_S5); 1536 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1537 break; 1538 } 1539 1540 acpi_sleepstate = ACPI_STATE_S0; 1541 return ret; 1542 } 1543 1544 #if defined(ACPI_ACTIVATE_DEV) 1545 /* XXX This very incomplete */ 1546 ACPI_STATUS 1547 acpi_allocate_resources(ACPI_HANDLE handle) 1548 { 1549 ACPI_BUFFER bufp, bufc, bufn; 1550 ACPI_RESOURCE *resp, *resc, *resn; 1551 ACPI_RESOURCE_IRQ *irq; 1552 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1553 ACPI_STATUS rv; 1554 uint delta; 1555 1556 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1557 if (ACPI_FAILURE(rv)) 1558 goto out; 1559 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1560 if (ACPI_FAILURE(rv)) { 1561 goto out1; 1562 } 1563 1564 bufn.Length = 1000; 1565 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1566 resp = bufp.Pointer; 1567 resc = bufc.Pointer; 1568 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1569 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1570 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1571 resp = ACPI_NEXT_RESOURCE(resp); 1572 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1573 break; 1574 /* Found identical Id */ 1575 resn->Type = resc->Type; 1576 switch (resc->Type) { 1577 case ACPI_RESOURCE_TYPE_IRQ: 1578 memcpy(&resn->Data, &resp->Data, 1579 sizeof(ACPI_RESOURCE_IRQ)); 1580 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1581 irq->Interrupts[0] = 1582 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1583 Interrupts[irq->InterruptCount-1]; 1584 irq->InterruptCount = 1; 1585 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1586 break; 1587 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1588 memcpy(&resn->Data, &resp->Data, 1589 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1590 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1591 #if 0 1592 /* 1593 * XXX not duplicating the interrupt logic above 1594 * because its not clear what it accomplishes. 1595 */ 1596 xirq->Interrupts[0] = 1597 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1598 Interrupts[irq->NumberOfInterrupts-1]; 1599 xirq->NumberOfInterrupts = 1; 1600 #endif 1601 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1602 break; 1603 case ACPI_RESOURCE_TYPE_IO: 1604 memcpy(&resn->Data, &resp->Data, 1605 sizeof(ACPI_RESOURCE_IO)); 1606 resn->Length = resp->Length; 1607 break; 1608 default: 1609 printf("acpi_allocate_resources: res=%u\n", resc->Type); 1610 rv = AE_BAD_DATA; 1611 goto out2; 1612 } 1613 resc = ACPI_NEXT_RESOURCE(resc); 1614 resn = ACPI_NEXT_RESOURCE(resn); 1615 resp = ACPI_NEXT_RESOURCE(resp); 1616 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1617 if (delta >= 1618 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1619 bufn.Length *= 2; 1620 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1621 M_ACPI, M_WAITOK); 1622 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1623 } 1624 } 1625 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1626 printf("acpi_allocate_resources: resc not exhausted\n"); 1627 rv = AE_BAD_DATA; 1628 goto out3; 1629 } 1630 1631 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1632 rv = AcpiSetCurrentResources(handle, &bufn); 1633 if (ACPI_FAILURE(rv)) { 1634 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1635 AcpiFormatException(rv)); 1636 } 1637 1638 out3: 1639 free(bufn.Pointer, M_ACPI); 1640 out2: 1641 ACPI_FREE(bufc.Pointer); 1642 out1: 1643 ACPI_FREE(bufp.Pointer); 1644 out: 1645 return rv; 1646 } 1647 #endif /* ACPI_ACTIVATE_DEV */ 1648 1649 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1650 { 1651 const struct sysctlnode *node; 1652 const struct sysctlnode *ssnode; 1653 1654 if (sysctl_createv(clog, 0, NULL, NULL, 1655 CTLFLAG_PERMANENT, 1656 CTLTYPE_NODE, "hw", NULL, 1657 NULL, 0, NULL, 0, 1658 CTL_HW, CTL_EOL) != 0) 1659 return; 1660 1661 if (sysctl_createv(clog, 0, NULL, &node, 1662 CTLFLAG_PERMANENT, 1663 CTLTYPE_NODE, "acpi", NULL, 1664 NULL, 0, NULL, 0, 1665 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1666 return; 1667 1668 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1669 CTLTYPE_QUAD, "root", 1670 SYSCTL_DESCR("ACPI root pointer"), 1671 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1672 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1673 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1674 CTLTYPE_STRING, "supported_states", 1675 SYSCTL_DESCR("Supported ACPI system states"), 1676 NULL, 0, acpi_supported_states, 0, 1677 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1678 1679 /* ACPI sleepstate sysctl */ 1680 if (sysctl_createv(NULL, 0, NULL, &node, 1681 CTLFLAG_PERMANENT, 1682 CTLTYPE_NODE, "machdep", NULL, 1683 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1684 return; 1685 if (sysctl_createv(NULL, 0, &node, &ssnode, 1686 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1687 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1688 CTL_EOL) != 0) 1689 return; 1690 } 1691 1692 static int 1693 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1694 { 1695 int error, t; 1696 struct sysctlnode node; 1697 1698 node = *rnode; 1699 t = acpi_sleepstate; 1700 node.sysctl_data = &t; 1701 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1702 if (error || newp == NULL) 1703 return error; 1704 1705 if (acpi_softc == NULL) 1706 return ENOSYS; 1707 1708 acpi_enter_sleep_state(acpi_softc, t); 1709 1710 return 0; 1711 } 1712 1713 static ACPI_TABLE_HEADER * 1714 acpi_map_rsdt(void) 1715 { 1716 ACPI_PHYSICAL_ADDRESS paddr; 1717 ACPI_TABLE_RSDP *rsdp; 1718 1719 paddr = AcpiOsGetRootPointer(); 1720 if (paddr == 0) { 1721 printf("ACPI: couldn't get root pointer\n"); 1722 return NULL; 1723 } 1724 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1725 if (rsdp == NULL) { 1726 printf("ACPI: couldn't map RSDP\n"); 1727 return NULL; 1728 } 1729 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1730 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1731 else 1732 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1733 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1734 1735 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1736 } 1737 1738 static void 1739 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1740 { 1741 if (rsdt == NULL) 1742 return; 1743 1744 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1745 } 1746
Indexes created Wed Oct 01 19:09:53 GMT 2025