acpi.c revision 1.139
1 /* $NetBSD: acpi.c,v 1.139 2009/12/31 10:07:13 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 1.139 2009/12/31 10:07:13 jruoho Exp $"); 74 75 #include "opt_acpi.h" 76 #include "opt_pcifixup.h" 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/device.h> 81 #include <sys/malloc.h> 82 #include <sys/mutex.h> 83 #include <sys/kernel.h> 84 #include <sys/proc.h> 85 #include <sys/sysctl.h> 86 87 #include <dev/acpi/acpica.h> 88 #include <dev/acpi/acpireg.h> 89 #include <dev/acpi/acpivar.h> 90 #include <dev/acpi/acpi_osd.h> 91 #include <dev/acpi/acpi_timer.h> 92 #include <dev/acpi/acpi_wakedev.h> 93 #include <dev/acpi/acpi_pci.h> 94 #ifdef ACPIVERBOSE 95 #include <dev/acpi/acpidevs_data.h> 96 #endif 97 98 #define _COMPONENT ACPI_TOOLS 99 ACPI_MODULE_NAME ("acpi") 100 101 #if defined(ACPI_PCI_FIXUP) 102 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 103 #endif 104 105 #ifdef PCI_INTR_FIXUP_DISABLED 106 #include <dev/pci/pcidevs.h> 107 #endif 108 109 MALLOC_DECLARE(M_ACPI); 110 111 #include <machine/acpi_machdep.h> 112 113 #ifdef ACPI_DEBUGGER 114 #define ACPI_DBGR_INIT 0x01 115 #define ACPI_DBGR_TABLES 0x02 116 #define ACPI_DBGR_ENABLE 0x04 117 #define ACPI_DBGR_PROBE 0x08 118 #define ACPI_DBGR_RUNNING 0x10 119 120 static int acpi_dbgr = 0x00; 121 #endif 122 123 static ACPI_TABLE_DESC acpi_initial_tables[128]; 124 125 static int acpi_match(device_t, cfdata_t, void *); 126 static void acpi_attach(device_t, device_t, void *); 127 static void acpi_childdet(device_t, device_t); 128 static int acpi_detach(device_t, int); 129 130 static int acpi_rescan(device_t, const char *, const int *); 131 static void acpi_rescan1(struct acpi_softc *, const char *, const int *); 132 static void acpi_rescan_nodes(struct acpi_softc *); 133 134 static int acpi_print(void *aux, const char *); 135 136 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 137 138 extern struct cfdriver acpi_cd; 139 140 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 141 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 142 143 /* 144 * This is a flag we set when the ACPI subsystem is active. Machine 145 * dependent code may wish to skip other steps (such as attaching 146 * subsystems that ACPI supercedes) when ACPI is active. 147 */ 148 int acpi_active; 149 int acpi_force_load; 150 int acpi_suspended = 0; 151 152 /* 153 * Pointer to the ACPI subsystem's state. There can be only 154 * one ACPI instance. 155 */ 156 struct acpi_softc *acpi_softc; 157 158 /* 159 * Locking stuff. 160 */ 161 extern kmutex_t acpi_interrupt_list_mtx; 162 163 /* 164 * Ignored HIDs 165 */ 166 static const char * const acpi_ignored_ids[] = { 167 #if defined(i386) || defined(x86_64) 168 "PNP0000", /* AT interrupt controller is handled internally */ 169 "PNP0200", /* AT DMA controller is handled internally */ 170 "PNP0A??", /* PCI Busses are handled internally */ 171 "PNP0B00", /* AT RTC is handled internally */ 172 "PNP0C01", /* No "System Board" driver */ 173 "PNP0C02", /* No "PnP motherboard register resources" 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, void *, void **); 196 197 static void acpi_enable_fixed_events(struct acpi_softc *); 198 199 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 200 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 201 static int is_available_state(struct acpi_softc *, int); 202 203 static bool acpi_suspend(device_t PMF_FN_PROTO); 204 static bool acpi_resume(device_t PMF_FN_PROTO); 205 206 /* 207 * acpi_probe: 208 * 209 * Probe for ACPI support. This is called by the 210 * machine-dependent ACPI front-end. All of the 211 * actual work is done by ACPICA. 212 * 213 * NOTE: This is not an autoconfiguration interface function. 214 */ 215 int 216 acpi_probe(void) 217 { 218 static int beenhere; 219 ACPI_TABLE_HEADER *rsdt; 220 ACPI_STATUS rv; 221 222 if (beenhere != 0) 223 panic("acpi_probe: ACPI has already been probed"); 224 beenhere = 1; 225 226 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 227 228 /* 229 * Start up ACPICA. 230 */ 231 #ifdef ACPI_DEBUGGER 232 if (acpi_dbgr & ACPI_DBGR_INIT) 233 acpi_osd_debugger(); 234 #endif 235 236 AcpiGbl_AllMethodsSerialized = FALSE; 237 AcpiGbl_EnableInterpreterSlack = TRUE; 238 239 rv = AcpiInitializeSubsystem(); 240 if (ACPI_FAILURE(rv)) { 241 printf("ACPI: unable to initialize ACPICA: %s\n", 242 AcpiFormatException(rv)); 243 return 0; 244 } 245 246 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 247 if (ACPI_FAILURE(rv)) { 248 #ifdef ACPI_DEBUG 249 printf("ACPI: unable to initialize ACPI tables: %s\n", 250 AcpiFormatException(rv)); 251 #endif 252 AcpiTerminate(); 253 return 0; 254 } 255 256 rv = AcpiReallocateRootTable(); 257 if (ACPI_FAILURE(rv)) { 258 printf("ACPI: unable to reallocate root table: %s\n", 259 AcpiFormatException(rv)); 260 AcpiTerminate(); 261 return 0; 262 } 263 264 #ifdef ACPI_DEBUGGER 265 if (acpi_dbgr & ACPI_DBGR_TABLES) 266 acpi_osd_debugger(); 267 #endif 268 269 rv = AcpiLoadTables(); 270 if (ACPI_FAILURE(rv)) { 271 printf("ACPI: unable to load tables: %s\n", 272 AcpiFormatException(rv)); 273 AcpiTerminate(); 274 return 0; 275 } 276 277 rsdt = acpi_map_rsdt(); 278 if (rsdt == NULL) { 279 printf("ACPI: unable to map RSDT\n"); 280 AcpiTerminate(); 281 return 0; 282 } 283 284 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 285 printf("ACPI: BIOS implementation in listed as broken:\n"); 286 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 287 "AslId <%4.4s,%08x>\n", 288 rsdt->OemId, rsdt->OemTableId, 289 rsdt->OemRevision, 290 rsdt->AslCompilerId, 291 rsdt->AslCompilerRevision); 292 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 293 acpi_unmap_rsdt(rsdt); 294 AcpiTerminate(); 295 return 0; 296 } 297 298 acpi_unmap_rsdt(rsdt); 299 300 #if notyet 301 /* Install the default address space handlers. */ 302 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 303 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 304 if (ACPI_FAILURE(rv)) { 305 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 306 AcpiFormatException(rv)); 307 AcpiTerminate(); 308 return 0; 309 } 310 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 311 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 312 if (ACPI_FAILURE(rv)) { 313 printf("ACPI: unable to initialize SystemIO handler: %s\n", 314 AcpiFormatException(rv)); 315 AcpiTerminate(); 316 return 0; 317 } 318 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 319 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 320 if (ACPI_FAILURE(rv)) { 321 printf("ACPI: unable to initialize PciConfig handler: %s\n", 322 AcpiFormatException(rv)); 323 AcpiTerminate(); 324 return 0; 325 } 326 #endif 327 328 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 329 if (ACPI_FAILURE(rv)) { 330 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 331 AcpiTerminate(); 332 return 0; 333 } 334 335 /* 336 * Looks like we have ACPI! 337 */ 338 339 return 1; 340 } 341 342 static int 343 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 344 { 345 struct cfattach *ca; 346 347 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 348 return (ca == &acpi_ca); 349 } 350 351 int 352 acpi_check(device_t parent, const char *ifattr) 353 { 354 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 355 } 356 357 ACPI_PHYSICAL_ADDRESS 358 acpi_OsGetRootPointer(void) 359 { 360 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 361 362 /* 363 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 364 * 365 * IA-64: Use the EFI. 366 * 367 * We let MD code handle this since there are multiple 368 * ways to do it. 369 */ 370 371 PhysicalAddress = acpi_md_OsGetRootPointer(); 372 373 if (acpi_root_pointer == 0) 374 acpi_root_pointer = PhysicalAddress; 375 376 return PhysicalAddress; 377 } 378 379 /* 380 * acpi_match: 381 * 382 * Autoconfiguration `match' routine. 383 */ 384 static int 385 acpi_match(device_t parent, cfdata_t match, void *aux) 386 { 387 /* 388 * XXX Check other locators? Hard to know -- machine 389 * dependent code has already checked for the presence 390 * of ACPI by calling acpi_probe(), so I suppose we 391 * don't really have to do anything else. 392 */ 393 return 1; 394 } 395 396 /* Remove references to child devices. 397 * 398 * XXX Need to reclaim any resources? 399 */ 400 static void 401 acpi_childdet(device_t self, device_t child) 402 { 403 struct acpi_softc *sc = device_private(self); 404 struct acpi_scope *as; 405 struct acpi_devnode *ad; 406 407 if (sc->sc_apmbus == child) 408 sc->sc_apmbus = NULL; 409 410 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 411 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 412 if (ad->ad_device == child) 413 ad->ad_device = NULL; 414 } 415 } 416 } 417 418 /* 419 * acpi_attach: 420 * 421 * Autoconfiguration `attach' routine. Finish initializing 422 * ACPICA (some initialization was done in acpi_probe(), 423 * which was required to check for the presence of ACPI), 424 * and enable the ACPI subsystem. 425 */ 426 static void 427 acpi_attach(device_t parent, device_t self, void *aux) 428 { 429 struct acpi_softc *sc = device_private(self); 430 struct acpibus_attach_args *aa = aux; 431 ACPI_STATUS rv; 432 ACPI_TABLE_HEADER *rsdt; 433 434 aprint_naive("\n"); 435 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 436 437 if (acpi_softc != NULL) 438 panic("acpi_attach: ACPI has already been attached"); 439 440 sysmon_power_settype("acpi"); 441 442 rsdt = acpi_map_rsdt(); 443 if (rsdt) { 444 aprint_verbose_dev( 445 self, 446 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 447 rsdt->OemId, rsdt->OemTableId, 448 rsdt->OemRevision, 449 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 450 } else 451 aprint_error_dev(self, "X/RSDT: Not found\n"); 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 acpi_softc = sc; 464 465 /* 466 * Register null power management handler 467 */ 468 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 469 aprint_error_dev(self, "couldn't establish power handler\n"); 470 471 /* 472 * Bring ACPI on-line. 473 */ 474 #ifdef ACPI_DEBUGGER 475 if (acpi_dbgr & ACPI_DBGR_ENABLE) 476 acpi_osd_debugger(); 477 #endif 478 479 #define ACPI_ENABLE_PHASE1 \ 480 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 481 #define ACPI_ENABLE_PHASE2 \ 482 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 483 ACPI_NO_ADDRESS_SPACE_INIT) 484 485 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 486 if (ACPI_FAILURE(rv)) { 487 aprint_error_dev(self, "unable to enable ACPI: %s\n", 488 AcpiFormatException(rv)); 489 return; 490 } 491 492 acpi_md_callback(); 493 494 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 495 if (ACPI_FAILURE(rv)) { 496 aprint_error_dev(self, "unable to enable ACPI: %s\n", 497 AcpiFormatException(rv)); 498 return; 499 } 500 501 /* early EC handler initialization if ECDT table is available */ 502 config_found_ia(self, "acpiecdtbus", NULL, NULL); 503 504 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 505 if (ACPI_FAILURE(rv)) { 506 aprint_error_dev(self, 507 "unable to initialize ACPI objects: %s\n", 508 AcpiFormatException(rv)); 509 return; 510 } 511 acpi_active = 1; 512 513 /* Our current state is "awake". */ 514 sc->sc_sleepstate = ACPI_STATE_S0; 515 516 /* Show SCI interrupt. */ 517 aprint_verbose_dev(self, "SCI interrupting at int %d\n", 518 AcpiGbl_FADT.SciInterrupt); 519 520 /* 521 * Check for fixed-hardware features. 522 */ 523 acpi_enable_fixed_events(sc); 524 acpitimer_init(); 525 526 /* 527 * Scan the namespace and build our device tree. 528 */ 529 #ifdef ACPI_DEBUGGER 530 if (acpi_dbgr & ACPI_DBGR_PROBE) 531 acpi_osd_debugger(); 532 #endif 533 acpi_build_tree(sc); 534 535 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 536 "%s%s%s%s%s%s", 537 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 538 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 539 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 540 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 541 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 542 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 543 544 #ifdef ACPI_DEBUGGER 545 if (acpi_dbgr & ACPI_DBGR_RUNNING) 546 acpi_osd_debugger(); 547 #endif 548 } 549 550 static int 551 acpi_detach(device_t self, int flags) 552 { 553 int rc; 554 555 #ifdef ACPI_DEBUGGER 556 if (acpi_dbgr & ACPI_DBGR_RUNNING) 557 acpi_osd_debugger(); 558 #endif 559 560 if ((rc = config_detach_children(self, flags)) != 0) 561 return rc; 562 563 #ifdef ACPI_DEBUGGER 564 if (acpi_dbgr & ACPI_DBGR_PROBE) 565 acpi_osd_debugger(); 566 #endif 567 568 if ((rc = acpitimer_detach()) != 0) 569 return rc; 570 571 #if 0 572 /* 573 * Bring ACPI on-line. 574 */ 575 #ifdef ACPI_DEBUGGER 576 if (acpi_dbgr & ACPI_DBGR_ENABLE) 577 acpi_osd_debugger(); 578 #endif 579 580 #define ACPI_ENABLE_PHASE1 \ 581 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 582 #define ACPI_ENABLE_PHASE2 \ 583 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 584 ACPI_NO_ADDRESS_SPACE_INIT) 585 586 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 587 if (ACPI_FAILURE(rv)) { 588 aprint_error_dev(self, "unable to enable ACPI: %s\n", 589 AcpiFormatException(rv)); 590 return; 591 } 592 593 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 594 if (ACPI_FAILURE(rv)) { 595 aprint_error_dev(self, "unable to enable ACPI: %s\n", 596 AcpiFormatException(rv)); 597 return; 598 } 599 600 /* early EC handler initialization if ECDT table is available */ 601 config_found_ia(self, "acpiecdtbus", NULL, NULL); 602 603 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 604 if (ACPI_FAILURE(rv)) { 605 aprint_error_dev(self, 606 "unable to initialize ACPI objects: %s\n", 607 AcpiFormatException(rv)); 608 return; 609 } 610 acpi_active = 1; 611 612 acpi_enable_fixed_events(sc); 613 #endif 614 615 pmf_device_deregister(self); 616 617 #if 0 618 sysmon_power_settype("acpi"); 619 #endif 620 acpi_softc = NULL; 621 622 return 0; 623 } 624 625 static bool 626 acpi_suspend(device_t dv PMF_FN_ARGS) 627 { 628 acpi_suspended = 1; 629 return true; 630 } 631 632 static bool 633 acpi_resume(device_t dv PMF_FN_ARGS) 634 { 635 acpi_suspended = 0; 636 return true; 637 } 638 639 #if 0 640 /* 641 * acpi_disable: 642 * 643 * Disable ACPI. 644 */ 645 static ACPI_STATUS 646 acpi_disable(struct acpi_softc *sc) 647 { 648 ACPI_STATUS rv = AE_OK; 649 650 if (acpi_active) { 651 rv = AcpiDisable(); 652 if (ACPI_SUCCESS(rv)) 653 acpi_active = 0; 654 } 655 return rv; 656 } 657 #endif 658 659 struct acpi_make_devnode_state { 660 struct acpi_softc *softc; 661 struct acpi_scope *scope; 662 }; 663 664 /* 665 * acpi_build_tree: 666 * 667 * Scan relevant portions of the ACPI namespace and attach 668 * child devices. 669 */ 670 static void 671 acpi_build_tree(struct acpi_softc *sc) 672 { 673 static const char *scopes[] = { 674 "\\_PR_", /* ACPI 1.0 processor namespace */ 675 "\\_SB_", /* system bus namespace */ 676 "\\_SI_", /* system indicator namespace */ 677 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 678 NULL, 679 }; 680 struct acpi_make_devnode_state state; 681 struct acpi_scope *as; 682 ACPI_HANDLE parent; 683 ACPI_STATUS rv; 684 int i; 685 686 TAILQ_INIT(&sc->sc_scopes); 687 688 state.softc = sc; 689 690 /* 691 * Scan the namespace and build our tree. 692 */ 693 for (i = 0; scopes[i] != NULL; i++) { 694 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 695 as->as_name = scopes[i]; 696 TAILQ_INIT(&as->as_devnodes); 697 698 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 699 700 state.scope = as; 701 702 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 703 &parent); 704 if (ACPI_SUCCESS(rv)) { 705 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 706 acpi_make_devnode, &state, NULL); 707 } 708 } 709 710 acpi_rescan1(sc, NULL, NULL); 711 712 acpi_wakedev_scan(sc); 713 714 acpi_pcidev_scan(sc); 715 } 716 717 static int 718 acpi_rescan(device_t self, const char *ifattr, const int *locators) 719 { 720 struct acpi_softc *sc = device_private(self); 721 722 acpi_rescan1(sc, ifattr, locators); 723 return 0; 724 } 725 726 /* XXX share this with sys/arch/i386/pci/elan520.c */ 727 static bool 728 ifattr_match(const char *snull, const char *t) 729 { 730 return (snull == NULL) || strcmp(snull, t) == 0; 731 } 732 733 static void 734 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 735 { 736 if (ifattr_match(ifattr, "acpinodebus")) 737 acpi_rescan_nodes(sc); 738 739 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 740 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 741 NULL); 742 } 743 } 744 745 static void 746 acpi_rescan_nodes(struct acpi_softc *sc) 747 { 748 struct acpi_scope *as; 749 750 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 751 struct acpi_devnode *ad; 752 753 /* Now, for this namespace, try to attach the devices. */ 754 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 755 struct acpi_attach_args aa; 756 757 if (ad->ad_device != NULL) 758 continue; 759 760 aa.aa_node = ad; 761 aa.aa_iot = sc->sc_iot; 762 aa.aa_memt = sc->sc_memt; 763 aa.aa_pc = sc->sc_pc; 764 aa.aa_pciflags = sc->sc_pciflags; 765 aa.aa_ic = sc->sc_ic; 766 767 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 768 /* 769 * XXX We only attach devices which are: 770 * 771 * - present 772 * - enabled 773 * - functioning properly 774 * 775 * However, if enabled, it's decoding resources, 776 * so we should claim them, if possible. 777 * Requires changes to bus_space(9). 778 */ 779 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 780 ACPI_VALID_STA && 781 (ad->ad_devinfo->CurrentStatus & 782 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 783 ACPI_STA_DEV_OK)) != 784 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 785 ACPI_STA_DEV_OK)) 786 continue; 787 } 788 789 /* 790 * XXX Same problem as above... 791 * 792 * Do this check only for devices, as e.g. 793 * a Thermal Zone doesn't have a HID. 794 */ 795 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 796 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 797 continue; 798 799 /* 800 * Handled internally 801 */ 802 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 803 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 804 continue; 805 806 /* 807 * Skip ignored HIDs 808 */ 809 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 810 continue; 811 812 ad->ad_device = config_found_ia(sc->sc_dev, 813 "acpinodebus", &aa, acpi_print); 814 } 815 } 816 } 817 818 #ifdef ACPI_ACTIVATE_DEV 819 static void 820 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 821 { 822 ACPI_STATUS rv; 823 ACPI_DEVICE_INFO *newdi; 824 825 #ifdef ACPI_DEBUG 826 aprint_normal("acpi_activate_device: %s, old status=%x\n", 827 (*di)->HardwareId.Value, (*di)->CurrentStatus); 828 #endif 829 830 rv = acpi_allocate_resources(handle); 831 if (ACPI_FAILURE(rv)) { 832 aprint_error("acpi: activate failed for %s\n", 833 (*di)->HardwareId.String); 834 } else { 835 aprint_verbose("acpi: activated %s\n", 836 (*di)->HardwareId.String); 837 } 838 839 (void)AcpiGetObjectInfo(handle, &newdi); 840 ACPI_FREE(*di); 841 *di = newdi; 842 843 #ifdef ACPI_DEBUG 844 aprint_normal("acpi_activate_device: %s, new status=%x\n", 845 (*di)->HardwareId.Value, (*di)->CurrentStatus); 846 #endif 847 } 848 #endif /* ACPI_ACTIVATE_DEV */ 849 850 /* 851 * acpi_make_devnode: 852 * 853 * Make an ACPI devnode. 854 */ 855 static ACPI_STATUS 856 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 857 void **status) 858 { 859 struct acpi_make_devnode_state *state = context; 860 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 861 struct acpi_softc *sc = state->softc; 862 #endif 863 struct acpi_scope *as = state->scope; 864 struct acpi_devnode *ad; 865 ACPI_OBJECT_TYPE type; 866 ACPI_DEVICE_INFO *devinfo; 867 ACPI_STATUS rv; 868 ACPI_NAME_UNION *anu; 869 int i, clear = 0; 870 871 rv = AcpiGetType(handle, &type); 872 if (ACPI_SUCCESS(rv)) { 873 rv = AcpiGetObjectInfo(handle, &devinfo); 874 if (ACPI_FAILURE(rv)) { 875 #ifdef ACPI_DEBUG 876 aprint_normal_dev(sc->sc_dev, 877 "AcpiGetObjectInfo failed: %s\n", 878 AcpiFormatException(rv)); 879 #endif 880 goto out; /* XXX why return OK */ 881 } 882 883 switch (type) { 884 case ACPI_TYPE_DEVICE: 885 #ifdef ACPI_ACTIVATE_DEV 886 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 887 (ACPI_VALID_STA|ACPI_VALID_HID) && 888 (devinfo->CurrentStatus & 889 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 890 ACPI_STA_DEV_PRESENT) 891 acpi_activate_device(handle, &devinfo); 892 893 /* FALLTHROUGH */ 894 #endif 895 896 case ACPI_TYPE_PROCESSOR: 897 case ACPI_TYPE_THERMAL: 898 case ACPI_TYPE_POWER: 899 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 900 if (ad == NULL) 901 return AE_NO_MEMORY; 902 903 ad->ad_devinfo = devinfo; 904 ad->ad_handle = handle; 905 ad->ad_level = level; 906 ad->ad_scope = as; 907 ad->ad_type = type; 908 909 anu = (ACPI_NAME_UNION *)&devinfo->Name; 910 ad->ad_name[4] = '\0'; 911 for (i = 3, clear = 0; i >= 0; i--) { 912 if (!clear && anu->Ascii[i] == '_') 913 ad->ad_name[i] = '\0'; 914 else { 915 ad->ad_name[i] = anu->Ascii[i]; 916 clear = 1; 917 } 918 } 919 if (ad->ad_name[0] == '\0') 920 ad->ad_name[0] = '_'; 921 922 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 923 924 if (type == ACPI_TYPE_DEVICE && 925 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 926 goto out; 927 928 #ifdef ACPI_EXTRA_DEBUG 929 aprint_normal_dev(sc->sc_dev, 930 "HID %s found in scope %s level %d\n", 931 ad->ad_devinfo->HardwareId.String, 932 as->as_name, ad->ad_level); 933 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 934 aprint_normal(" UID %s\n", 935 ad->ad_devinfo->UniqueId.String); 936 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 937 aprint_normal(" ADR 0x%016" PRIx64 "\n", 938 ad->ad_devinfo->Address); 939 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 940 aprint_normal(" STA 0x%08x\n", 941 ad->ad_devinfo->CurrentStatus); 942 #endif 943 } 944 } 945 out: 946 return AE_OK; 947 } 948 949 /* 950 * acpi_print: 951 * 952 * Autoconfiguration print routine for ACPI node bus. 953 */ 954 static int 955 acpi_print(void *aux, const char *pnp) 956 { 957 struct acpi_attach_args *aa = aux; 958 ACPI_STATUS rv; 959 960 if (pnp) { 961 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 962 char *pnpstr = 963 aa->aa_node->ad_devinfo->HardwareId.String; 964 ACPI_BUFFER buf; 965 966 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 967 pnpstr); 968 969 buf.Pointer = NULL; 970 buf.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 971 rv = AcpiEvaluateObject(aa->aa_node->ad_handle, 972 "_STR", NULL, &buf); 973 if (ACPI_SUCCESS(rv)) { 974 ACPI_OBJECT *obj = buf.Pointer; 975 switch (obj->Type) { 976 case ACPI_TYPE_STRING: 977 aprint_normal("[%s] ", obj->String.Pointer); 978 break; 979 case ACPI_TYPE_BUFFER: 980 aprint_normal("buffer %p ", obj->Buffer.Pointer); 981 break; 982 default: 983 aprint_normal("type %d ",obj->Type); 984 break; 985 } 986 ACPI_FREE(buf.Pointer); 987 } 988 #ifdef ACPIVERBOSE 989 else { 990 int i; 991 992 for (i = 0; i < __arraycount(acpi_knowndevs); 993 i++) { 994 if (strcmp(acpi_knowndevs[i].pnp, 995 pnpstr) == 0) { 996 aprint_normal("[%s] ", 997 acpi_knowndevs[i].str); 998 } 999 } 1000 } 1001 1002 #endif 1003 aprint_normal("at %s", pnp); 1004 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1005 aprint_normal("%s (ACPI Object Type '%s' " 1006 "[0x%02x]) ", aa->aa_node->ad_name, 1007 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1008 aa->aa_node->ad_devinfo->Type); 1009 aprint_normal("at %s", pnp); 1010 } else 1011 return 0; 1012 } else { 1013 aprint_normal(" (%s", aa->aa_node->ad_name); 1014 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1015 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1016 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1017 const char *uid; 1018 1019 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1020 if (uid[0] == '\0') 1021 uid = "<null>"; 1022 aprint_normal("-%s", uid); 1023 } 1024 } 1025 aprint_normal(")"); 1026 } 1027 1028 return UNCONF; 1029 } 1030 1031 /***************************************************************************** 1032 * ACPI fixed-hardware feature handlers 1033 *****************************************************************************/ 1034 1035 static UINT32 acpi_fixed_button_handler(void *); 1036 static void acpi_fixed_button_pressed(void *); 1037 1038 /* 1039 * acpi_enable_fixed_events: 1040 * 1041 * Enable any fixed-hardware feature handlers. 1042 */ 1043 static void 1044 acpi_enable_fixed_events(struct acpi_softc *sc) 1045 { 1046 static int beenhere; 1047 ACPI_STATUS rv; 1048 1049 KASSERT(beenhere == 0); 1050 beenhere = 1; 1051 1052 /* 1053 * Check for fixed-hardware buttons. 1054 */ 1055 1056 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1057 aprint_verbose_dev(sc->sc_dev, 1058 "fixed-feature power button present\n"); 1059 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1060 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1061 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1062 aprint_error_dev(sc->sc_dev, 1063 "unable to register fixed power " 1064 "button with sysmon\n"); 1065 } else { 1066 rv = AcpiInstallFixedEventHandler( 1067 ACPI_EVENT_POWER_BUTTON, 1068 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1069 if (ACPI_FAILURE(rv)) { 1070 aprint_error_dev(sc->sc_dev, 1071 "unable to install handler " 1072 "for fixed power button: %s\n", 1073 AcpiFormatException(rv)); 1074 } 1075 } 1076 } 1077 1078 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1079 aprint_verbose_dev(sc->sc_dev, 1080 "fixed-feature sleep button present\n"); 1081 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1082 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1083 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1084 aprint_error_dev(sc->sc_dev, 1085 "unable to register fixed sleep " 1086 "button with sysmon\n"); 1087 } else { 1088 rv = AcpiInstallFixedEventHandler( 1089 ACPI_EVENT_SLEEP_BUTTON, 1090 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1091 if (ACPI_FAILURE(rv)) { 1092 aprint_error_dev(sc->sc_dev, 1093 "unable to install handler " 1094 "for fixed sleep button: %s\n", 1095 AcpiFormatException(rv)); 1096 } 1097 } 1098 } 1099 } 1100 1101 /* 1102 * acpi_fixed_button_handler: 1103 * 1104 * Event handler for the fixed buttons. 1105 */ 1106 static UINT32 1107 acpi_fixed_button_handler(void *context) 1108 { 1109 struct sysmon_pswitch *smpsw = context; 1110 ACPI_STATUS rv; 1111 1112 #ifdef ACPI_BUT_DEBUG 1113 printf("%s: fixed button handler\n", smpsw->smpsw_name); 1114 #endif 1115 1116 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 1117 acpi_fixed_button_pressed, smpsw); 1118 if (ACPI_FAILURE(rv)) 1119 printf("%s: WARNING: unable to queue fixed button pressed " 1120 "callback: %s\n", smpsw->smpsw_name, 1121 AcpiFormatException(rv)); 1122 1123 return ACPI_INTERRUPT_HANDLED; 1124 } 1125 1126 /* 1127 * acpi_fixed_button_pressed: 1128 * 1129 * Deal with a fixed button being pressed. 1130 */ 1131 static void 1132 acpi_fixed_button_pressed(void *context) 1133 { 1134 struct sysmon_pswitch *smpsw = context; 1135 1136 #ifdef ACPI_BUT_DEBUG 1137 printf("%s: fixed button pressed, calling sysmon\n", 1138 smpsw->smpsw_name); 1139 #endif 1140 1141 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1142 } 1143 1144 /***************************************************************************** 1145 * ACPI utility routines. 1146 *****************************************************************************/ 1147 1148 /* 1149 * acpi_eval_integer: 1150 * 1151 * Evaluate an integer object. 1152 */ 1153 ACPI_STATUS 1154 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1155 { 1156 ACPI_STATUS rv; 1157 ACPI_BUFFER buf; 1158 ACPI_OBJECT param; 1159 1160 if (handle == NULL) 1161 handle = ACPI_ROOT_OBJECT; 1162 1163 buf.Pointer = ¶m; 1164 buf.Length = sizeof(param); 1165 1166 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1167 ACPI_TYPE_INTEGER); 1168 if (ACPI_SUCCESS(rv)) 1169 *valp = param.Integer.Value; 1170 1171 return rv; 1172 } 1173 1174 ACPI_STATUS 1175 acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1176 { 1177 ACPI_OBJECT param_arg; 1178 ACPI_OBJECT_LIST param_args; 1179 1180 if (handle == NULL) 1181 handle = ACPI_ROOT_OBJECT; 1182 1183 param_arg.Type = ACPI_TYPE_INTEGER; 1184 param_arg.Integer.Value = arg; 1185 1186 param_args.Count = 1; 1187 param_args.Pointer = ¶m_arg; 1188 1189 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1190 } 1191 1192 /* 1193 * acpi_eval_string: 1194 * 1195 * Evaluate a (Unicode) string object. 1196 */ 1197 ACPI_STATUS 1198 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1199 { 1200 ACPI_STATUS rv; 1201 ACPI_BUFFER buf; 1202 1203 if (handle == NULL) 1204 handle = ACPI_ROOT_OBJECT; 1205 1206 buf.Pointer = NULL; 1207 buf.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1208 1209 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1210 if (ACPI_SUCCESS(rv)) { 1211 ACPI_OBJECT *param = buf.Pointer; 1212 const char *ptr = param->String.Pointer; 1213 size_t len = param->String.Length; 1214 if ((*stringp = ACPI_ALLOCATE(len)) == NULL) 1215 rv = AE_NO_MEMORY; 1216 else 1217 (void)memcpy(*stringp, ptr, len); 1218 ACPI_FREE(param); 1219 } 1220 1221 return rv; 1222 } 1223 1224 1225 /* 1226 * acpi_eval_struct: 1227 * 1228 * Evaluate a more complex structure. 1229 * Caller must free buf.Pointer by ACPI_FREE(). 1230 */ 1231 ACPI_STATUS 1232 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1233 { 1234 ACPI_STATUS rv; 1235 1236 if (handle == NULL) 1237 handle = ACPI_ROOT_OBJECT; 1238 1239 bufp->Pointer = NULL; 1240 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1241 1242 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1243 1244 return rv; 1245 } 1246 1247 /* 1248 * acpi_foreach_package_object: 1249 * 1250 * Iterate over all objects in a in a packages and pass then all 1251 * to a function. If the called function returns non AE_OK, the 1252 * iteration is stopped and that value is returned. 1253 */ 1254 1255 ACPI_STATUS 1256 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1257 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1258 void *arg) 1259 { 1260 ACPI_STATUS rv = AE_OK; 1261 int i; 1262 1263 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1264 return AE_BAD_PARAMETER; 1265 1266 for (i = 0; i < pkg->Package.Count; i++) { 1267 rv = (*func)(&pkg->Package.Elements[i], arg); 1268 if (ACPI_FAILURE(rv)) 1269 break; 1270 } 1271 1272 return rv; 1273 } 1274 1275 const char * 1276 acpi_name(ACPI_HANDLE handle) 1277 { 1278 static char buffer[80]; 1279 ACPI_BUFFER buf; 1280 ACPI_STATUS rv; 1281 1282 buf.Length = sizeof(buffer); 1283 buf.Pointer = buffer; 1284 1285 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1286 if (ACPI_FAILURE(rv)) 1287 return "(unknown acpi path)"; 1288 return buffer; 1289 } 1290 1291 /* 1292 * acpi_get: 1293 * 1294 * Fetch data info the specified (empty) ACPI buffer. 1295 * Caller must free buf.Pointer by ACPI_FREE(). 1296 */ 1297 ACPI_STATUS 1298 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1299 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1300 { 1301 buf->Pointer = NULL; 1302 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1303 1304 return (*getit)(handle, buf); 1305 } 1306 1307 1308 /* 1309 * acpi_match_hid 1310 * 1311 * Match given ids against _HID and _CIDs 1312 */ 1313 int 1314 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1315 { 1316 int i; 1317 1318 while (*ids) { 1319 if (ad->Valid & ACPI_VALID_HID) { 1320 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1321 return 1; 1322 } 1323 1324 if (ad->Valid & ACPI_VALID_CID) { 1325 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1326 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1327 return 1; 1328 } 1329 } 1330 ids++; 1331 } 1332 1333 return 0; 1334 } 1335 1336 /* 1337 * acpi_wake_gpe_helper 1338 * 1339 * Set/unset GPE as both Runtime and Wake 1340 */ 1341 static void 1342 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1343 { 1344 ACPI_BUFFER buf; 1345 ACPI_STATUS rv; 1346 ACPI_OBJECT *p, *elt; 1347 1348 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1349 if (ACPI_FAILURE(rv)) 1350 return; /* just ignore */ 1351 1352 p = buf.Pointer; 1353 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1354 goto out; /* just ignore */ 1355 1356 elt = p->Package.Elements; 1357 1358 /* TBD: package support */ 1359 if (enable) { 1360 AcpiSetGpeType(NULL, elt[0].Integer.Value, 1361 ACPI_GPE_TYPE_WAKE_RUN); 1362 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1363 } else 1364 AcpiDisableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1365 1366 out: 1367 ACPI_FREE(buf.Pointer); 1368 } 1369 1370 /* 1371 * acpi_clear_wake_gpe 1372 * 1373 * Clear GPE as both Runtime and Wake 1374 */ 1375 void 1376 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1377 { 1378 acpi_wake_gpe_helper(handle, false); 1379 } 1380 1381 /* 1382 * acpi_set_wake_gpe 1383 * 1384 * Set GPE as both Runtime and Wake 1385 */ 1386 void 1387 acpi_set_wake_gpe(ACPI_HANDLE handle) 1388 { 1389 acpi_wake_gpe_helper(handle, true); 1390 } 1391 1392 1393 /***************************************************************************** 1394 * ACPI sleep support. 1395 *****************************************************************************/ 1396 1397 static int 1398 is_available_state(struct acpi_softc *sc, int state) 1399 { 1400 UINT8 type_a, type_b; 1401 1402 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1403 &type_a, &type_b)); 1404 } 1405 1406 /* 1407 * acpi_enter_sleep_state: 1408 * 1409 * enter to the specified sleep state. 1410 */ 1411 1412 ACPI_STATUS 1413 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1414 { 1415 int err; 1416 ACPI_STATUS ret = AE_OK; 1417 1418 if (state == acpi_sleepstate) 1419 return AE_OK; 1420 1421 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1422 1423 switch (state) { 1424 case ACPI_STATE_S0: 1425 break; 1426 case ACPI_STATE_S1: 1427 case ACPI_STATE_S2: 1428 case ACPI_STATE_S3: 1429 case ACPI_STATE_S4: 1430 if (!is_available_state(sc, state)) { 1431 aprint_error_dev(sc->sc_dev, 1432 "ACPI S%d not available on this platform\n", state); 1433 break; 1434 } 1435 1436 acpi_wakedev_commit(sc); 1437 1438 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) { 1439 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1440 break; 1441 } 1442 1443 ret = AcpiEnterSleepStatePrep(state); 1444 if (ACPI_FAILURE(ret)) { 1445 aprint_error_dev(sc->sc_dev, 1446 "failed preparing to sleep (%s)\n", 1447 AcpiFormatException(ret)); 1448 break; 1449 } 1450 1451 acpi_sleepstate = state; 1452 if (state == ACPI_STATE_S1) { 1453 /* just enter the state */ 1454 acpi_md_OsDisableInterrupt(); 1455 ret = AcpiEnterSleepState((UINT8)state); 1456 if (ACPI_FAILURE(ret)) 1457 aprint_error_dev(sc->sc_dev, 1458 "failed to enter sleep state S1: %s\n", 1459 AcpiFormatException(ret)); 1460 AcpiLeaveSleepState((UINT8)state); 1461 } else { 1462 err = acpi_md_sleep(state); 1463 if (state == ACPI_STATE_S4) 1464 AcpiEnable(); 1465 pmf_system_bus_resume(PMF_Q_NONE); 1466 AcpiLeaveSleepState((UINT8)state); 1467 pmf_system_resume(PMF_Q_NONE); 1468 } 1469 1470 break; 1471 case ACPI_STATE_S5: 1472 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1473 if (ACPI_FAILURE(ret)) { 1474 aprint_error_dev(sc->sc_dev, 1475 "failed preparing to sleep (%s)\n", 1476 AcpiFormatException(ret)); 1477 break; 1478 } 1479 DELAY(1000000); 1480 acpi_sleepstate = state; 1481 acpi_md_OsDisableInterrupt(); 1482 AcpiEnterSleepState(ACPI_STATE_S5); 1483 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1484 break; 1485 } 1486 1487 acpi_sleepstate = ACPI_STATE_S0; 1488 return ret; 1489 } 1490 1491 #if defined(ACPI_ACTIVATE_DEV) 1492 /* XXX This very incomplete */ 1493 ACPI_STATUS 1494 acpi_allocate_resources(ACPI_HANDLE handle) 1495 { 1496 ACPI_BUFFER bufp, bufc, bufn; 1497 ACPI_RESOURCE *resp, *resc, *resn; 1498 ACPI_RESOURCE_IRQ *irq; 1499 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1500 ACPI_STATUS rv; 1501 uint delta; 1502 1503 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1504 if (ACPI_FAILURE(rv)) 1505 goto out; 1506 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1507 if (ACPI_FAILURE(rv)) { 1508 goto out1; 1509 } 1510 1511 bufn.Length = 1000; 1512 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1513 resp = bufp.Pointer; 1514 resc = bufc.Pointer; 1515 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1516 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1517 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1518 resp = ACPI_NEXT_RESOURCE(resp); 1519 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1520 break; 1521 /* Found identical Id */ 1522 resn->Type = resc->Type; 1523 switch (resc->Type) { 1524 case ACPI_RESOURCE_TYPE_IRQ: 1525 memcpy(&resn->Data, &resp->Data, 1526 sizeof(ACPI_RESOURCE_IRQ)); 1527 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1528 irq->Interrupts[0] = 1529 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1530 Interrupts[irq->InterruptCount-1]; 1531 irq->InterruptCount = 1; 1532 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1533 break; 1534 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1535 memcpy(&resn->Data, &resp->Data, 1536 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1537 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1538 #if 0 1539 /* 1540 * XXX not duplicating the interrupt logic above 1541 * because its not clear what it accomplishes. 1542 */ 1543 xirq->Interrupts[0] = 1544 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1545 Interrupts[irq->NumberOfInterrupts-1]; 1546 xirq->NumberOfInterrupts = 1; 1547 #endif 1548 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1549 break; 1550 case ACPI_RESOURCE_TYPE_IO: 1551 memcpy(&resn->Data, &resp->Data, 1552 sizeof(ACPI_RESOURCE_IO)); 1553 resn->Length = resp->Length; 1554 break; 1555 default: 1556 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1557 rv = AE_BAD_DATA; 1558 goto out2; 1559 } 1560 resc = ACPI_NEXT_RESOURCE(resc); 1561 resn = ACPI_NEXT_RESOURCE(resn); 1562 resp = ACPI_NEXT_RESOURCE(resp); 1563 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1564 if (delta >= 1565 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1566 bufn.Length *= 2; 1567 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1568 M_ACPI, M_WAITOK); 1569 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1570 } 1571 } 1572 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1573 printf("acpi_allocate_resources: resc not exhausted\n"); 1574 rv = AE_BAD_DATA; 1575 goto out3; 1576 } 1577 1578 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1579 rv = AcpiSetCurrentResources(handle, &bufn); 1580 if (ACPI_FAILURE(rv)) { 1581 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1582 AcpiFormatException(rv)); 1583 } 1584 1585 out3: 1586 free(bufn.Pointer, M_ACPI); 1587 out2: 1588 ACPI_FREE(bufc.Pointer); 1589 out1: 1590 ACPI_FREE(bufp.Pointer); 1591 out: 1592 return rv; 1593 } 1594 #endif /* ACPI_ACTIVATE_DEV */ 1595 1596 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1597 { 1598 const struct sysctlnode *node; 1599 const struct sysctlnode *ssnode; 1600 1601 if (sysctl_createv(clog, 0, NULL, NULL, 1602 CTLFLAG_PERMANENT, 1603 CTLTYPE_NODE, "hw", NULL, 1604 NULL, 0, NULL, 0, 1605 CTL_HW, CTL_EOL) != 0) 1606 return; 1607 1608 if (sysctl_createv(clog, 0, NULL, &node, 1609 CTLFLAG_PERMANENT, 1610 CTLTYPE_NODE, "acpi", NULL, 1611 NULL, 0, NULL, 0, 1612 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1613 return; 1614 1615 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1616 CTLTYPE_QUAD, "root", 1617 SYSCTL_DESCR("ACPI root pointer"), 1618 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1619 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1620 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1621 CTLTYPE_STRING, "supported_states", 1622 SYSCTL_DESCR("Supported ACPI system states"), 1623 NULL, 0, acpi_supported_states, 0, 1624 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1625 1626 /* ACPI sleepstate sysctl */ 1627 if (sysctl_createv(NULL, 0, NULL, &node, 1628 CTLFLAG_PERMANENT, 1629 CTLTYPE_NODE, "machdep", NULL, 1630 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1631 return; 1632 if (sysctl_createv(NULL, 0, &node, &ssnode, 1633 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1634 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1635 CTL_EOL) != 0) 1636 return; 1637 } 1638 1639 static int 1640 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1641 { 1642 int error, t; 1643 struct sysctlnode node; 1644 1645 node = *rnode; 1646 t = acpi_sleepstate; 1647 node.sysctl_data = &t; 1648 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1649 if (error || newp == NULL) 1650 return error; 1651 1652 if (acpi_softc == NULL) 1653 return ENOSYS; 1654 1655 acpi_enter_sleep_state(acpi_softc, t); 1656 1657 return 0; 1658 } 1659 1660 static ACPI_TABLE_HEADER * 1661 acpi_map_rsdt(void) 1662 { 1663 ACPI_PHYSICAL_ADDRESS paddr; 1664 ACPI_TABLE_RSDP *rsdp; 1665 1666 paddr = AcpiOsGetRootPointer(); 1667 if (paddr == 0) { 1668 printf("ACPI: couldn't get root pointer\n"); 1669 return NULL; 1670 } 1671 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1672 if (rsdp == NULL) { 1673 printf("ACPI: couldn't map RSDP\n"); 1674 return NULL; 1675 } 1676 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1677 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1678 else 1679 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1680 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1681 1682 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1683 } 1684 1685 static void 1686 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1687 { 1688 if (rsdt == NULL) 1689 return; 1690 1691 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1692 } 1693
Indexes created Wed Oct 01 19:09:53 GMT 2025