acpi.c revision 1.138
1 /* $NetBSD: acpi.c,v 1.138 2009/12/31 10:02:51 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 1.138 2009/12/31 10:02:51 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 static kmutex_t acpi_slock; 162 static int acpi_locked; 163 extern kmutex_t acpi_interrupt_list_mtx; 164 165 /* 166 * Ignored HIDs 167 */ 168 static const char * const acpi_ignored_ids[] = { 169 #if defined(i386) || defined(x86_64) 170 "PNP0000", /* AT interrupt controller is handled internally */ 171 "PNP0200", /* AT DMA controller is handled internally */ 172 "PNP0A??", /* PCI Busses are handled internally */ 173 "PNP0B00", /* AT RTC is handled internally */ 174 "PNP0C01", /* No "System Board" driver */ 175 "PNP0C02", /* No "PnP motherboard register resources" driver */ 176 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 177 "INT0800", /* Intel HW RNG is handled internally */ 178 #endif 179 #if defined(x86_64) 180 "PNP0C04", /* FPU is handled internally */ 181 #endif 182 NULL 183 }; 184 185 /* 186 * sysctl-related information 187 */ 188 189 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 190 static int acpi_sleepstate = ACPI_STATE_S0; 191 static char acpi_supported_states[3 * 6 + 1] = ""; 192 193 /* 194 * Prototypes. 195 */ 196 static void acpi_build_tree(struct acpi_softc *); 197 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 198 199 static void acpi_enable_fixed_events(struct acpi_softc *); 200 201 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 202 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 203 static int is_available_state(struct acpi_softc *, int); 204 205 static bool acpi_suspend(device_t PMF_FN_PROTO); 206 static bool acpi_resume(device_t PMF_FN_PROTO); 207 208 /* 209 * acpi_probe: 210 * 211 * Probe for ACPI support. This is called by the 212 * machine-dependent ACPI front-end. All of the 213 * actual work is done by ACPICA. 214 * 215 * NOTE: This is not an autoconfiguration interface function. 216 */ 217 int 218 acpi_probe(void) 219 { 220 static int beenhere; 221 ACPI_TABLE_HEADER *rsdt; 222 ACPI_STATUS rv; 223 224 if (beenhere != 0) 225 panic("acpi_probe: ACPI has already been probed"); 226 beenhere = 1; 227 228 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 229 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 230 acpi_locked = 0; 231 232 /* 233 * Start up ACPICA. 234 */ 235 #ifdef ACPI_DEBUGGER 236 if (acpi_dbgr & ACPI_DBGR_INIT) 237 acpi_osd_debugger(); 238 #endif 239 240 AcpiGbl_AllMethodsSerialized = FALSE; 241 AcpiGbl_EnableInterpreterSlack = TRUE; 242 243 rv = AcpiInitializeSubsystem(); 244 if (ACPI_FAILURE(rv)) { 245 printf("ACPI: unable to initialize ACPICA: %s\n", 246 AcpiFormatException(rv)); 247 return 0; 248 } 249 250 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 251 if (ACPI_FAILURE(rv)) { 252 #ifdef ACPI_DEBUG 253 printf("ACPI: unable to initialize ACPI tables: %s\n", 254 AcpiFormatException(rv)); 255 #endif 256 AcpiTerminate(); 257 return 0; 258 } 259 260 rv = AcpiReallocateRootTable(); 261 if (ACPI_FAILURE(rv)) { 262 printf("ACPI: unable to reallocate root table: %s\n", 263 AcpiFormatException(rv)); 264 AcpiTerminate(); 265 return 0; 266 } 267 268 #ifdef ACPI_DEBUGGER 269 if (acpi_dbgr & ACPI_DBGR_TABLES) 270 acpi_osd_debugger(); 271 #endif 272 273 rv = AcpiLoadTables(); 274 if (ACPI_FAILURE(rv)) { 275 printf("ACPI: unable to load tables: %s\n", 276 AcpiFormatException(rv)); 277 AcpiTerminate(); 278 return 0; 279 } 280 281 rsdt = acpi_map_rsdt(); 282 if (rsdt == NULL) { 283 printf("ACPI: unable to map RSDT\n"); 284 AcpiTerminate(); 285 return 0; 286 } 287 288 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 289 printf("ACPI: BIOS implementation in listed as broken:\n"); 290 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 291 "AslId <%4.4s,%08x>\n", 292 rsdt->OemId, rsdt->OemTableId, 293 rsdt->OemRevision, 294 rsdt->AslCompilerId, 295 rsdt->AslCompilerRevision); 296 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 297 acpi_unmap_rsdt(rsdt); 298 AcpiTerminate(); 299 return 0; 300 } 301 302 acpi_unmap_rsdt(rsdt); 303 304 #if notyet 305 /* Install the default address space handlers. */ 306 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 307 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 308 if (ACPI_FAILURE(rv)) { 309 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 310 AcpiFormatException(rv)); 311 AcpiTerminate(); 312 return 0; 313 } 314 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 315 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 316 if (ACPI_FAILURE(rv)) { 317 printf("ACPI: unable to initialize SystemIO handler: %s\n", 318 AcpiFormatException(rv)); 319 AcpiTerminate(); 320 return 0; 321 } 322 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 323 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 324 if (ACPI_FAILURE(rv)) { 325 printf("ACPI: unable to initialize PciConfig handler: %s\n", 326 AcpiFormatException(rv)); 327 AcpiTerminate(); 328 return 0; 329 } 330 #endif 331 332 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 333 if (ACPI_FAILURE(rv)) { 334 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 335 AcpiTerminate(); 336 return 0; 337 } 338 339 /* 340 * Looks like we have ACPI! 341 */ 342 343 return 1; 344 } 345 346 static int 347 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 348 { 349 struct cfattach *ca; 350 351 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 352 return (ca == &acpi_ca); 353 } 354 355 int 356 acpi_check(device_t parent, const char *ifattr) 357 { 358 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 359 } 360 361 ACPI_PHYSICAL_ADDRESS 362 acpi_OsGetRootPointer(void) 363 { 364 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 365 366 /* 367 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 368 * 369 * IA-64: Use the EFI. 370 * 371 * We let MD code handle this since there are multiple 372 * ways to do it. 373 */ 374 375 PhysicalAddress = acpi_md_OsGetRootPointer(); 376 377 if (acpi_root_pointer == 0) 378 acpi_root_pointer = PhysicalAddress; 379 380 return PhysicalAddress; 381 } 382 383 /* 384 * acpi_match: 385 * 386 * Autoconfiguration `match' routine. 387 */ 388 static int 389 acpi_match(device_t parent, cfdata_t match, void *aux) 390 { 391 /* 392 * XXX Check other locators? Hard to know -- machine 393 * dependent code has already checked for the presence 394 * of ACPI by calling acpi_probe(), so I suppose we 395 * don't really have to do anything else. 396 */ 397 return 1; 398 } 399 400 /* Remove references to child devices. 401 * 402 * XXX Need to reclaim any resources? 403 */ 404 static void 405 acpi_childdet(device_t self, device_t child) 406 { 407 struct acpi_softc *sc = device_private(self); 408 struct acpi_scope *as; 409 struct acpi_devnode *ad; 410 411 if (sc->sc_apmbus == child) 412 sc->sc_apmbus = NULL; 413 414 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 415 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 416 if (ad->ad_device == child) 417 ad->ad_device = NULL; 418 } 419 } 420 } 421 422 /* 423 * acpi_attach: 424 * 425 * Autoconfiguration `attach' routine. Finish initializing 426 * ACPICA (some initialization was done in acpi_probe(), 427 * which was required to check for the presence of ACPI), 428 * and enable the ACPI subsystem. 429 */ 430 static void 431 acpi_attach(device_t parent, device_t self, void *aux) 432 { 433 struct acpi_softc *sc = device_private(self); 434 struct acpibus_attach_args *aa = aux; 435 ACPI_STATUS rv; 436 ACPI_TABLE_HEADER *rsdt; 437 438 aprint_naive("\n"); 439 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 440 441 if (acpi_softc != NULL) 442 panic("acpi_attach: ACPI has already been attached"); 443 444 sysmon_power_settype("acpi"); 445 446 rsdt = acpi_map_rsdt(); 447 if (rsdt) { 448 aprint_verbose_dev( 449 self, 450 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 451 rsdt->OemId, rsdt->OemTableId, 452 rsdt->OemRevision, 453 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 454 } else 455 aprint_error_dev(self, "X/RSDT: Not found\n"); 456 acpi_unmap_rsdt(rsdt); 457 458 sc->sc_dev = self; 459 sc->sc_quirks = acpi_find_quirks(); 460 461 sc->sc_iot = aa->aa_iot; 462 sc->sc_memt = aa->aa_memt; 463 sc->sc_pc = aa->aa_pc; 464 sc->sc_pciflags = aa->aa_pciflags; 465 sc->sc_ic = aa->aa_ic; 466 467 acpi_softc = sc; 468 469 /* 470 * Register null power management handler 471 */ 472 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 473 aprint_error_dev(self, "couldn't establish power handler\n"); 474 475 /* 476 * Bring ACPI on-line. 477 */ 478 #ifdef ACPI_DEBUGGER 479 if (acpi_dbgr & ACPI_DBGR_ENABLE) 480 acpi_osd_debugger(); 481 #endif 482 483 #define ACPI_ENABLE_PHASE1 \ 484 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 485 #define ACPI_ENABLE_PHASE2 \ 486 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 487 ACPI_NO_ADDRESS_SPACE_INIT) 488 489 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 490 if (ACPI_FAILURE(rv)) { 491 aprint_error_dev(self, "unable to enable ACPI: %s\n", 492 AcpiFormatException(rv)); 493 return; 494 } 495 496 acpi_md_callback(); 497 498 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 499 if (ACPI_FAILURE(rv)) { 500 aprint_error_dev(self, "unable to enable ACPI: %s\n", 501 AcpiFormatException(rv)); 502 return; 503 } 504 505 /* early EC handler initialization if ECDT table is available */ 506 config_found_ia(self, "acpiecdtbus", NULL, NULL); 507 508 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 509 if (ACPI_FAILURE(rv)) { 510 aprint_error_dev(self, 511 "unable to initialize ACPI objects: %s\n", 512 AcpiFormatException(rv)); 513 return; 514 } 515 acpi_active = 1; 516 517 /* Our current state is "awake". */ 518 sc->sc_sleepstate = ACPI_STATE_S0; 519 520 /* Show SCI interrupt. */ 521 aprint_verbose_dev(self, "SCI interrupting at int %d\n", 522 AcpiGbl_FADT.SciInterrupt); 523 524 /* 525 * Check for fixed-hardware features. 526 */ 527 acpi_enable_fixed_events(sc); 528 acpitimer_init(); 529 530 /* 531 * Scan the namespace and build our device tree. 532 */ 533 #ifdef ACPI_DEBUGGER 534 if (acpi_dbgr & ACPI_DBGR_PROBE) 535 acpi_osd_debugger(); 536 #endif 537 acpi_build_tree(sc); 538 539 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 540 "%s%s%s%s%s%s", 541 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 542 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 543 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 544 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 545 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 546 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 547 548 #ifdef ACPI_DEBUGGER 549 if (acpi_dbgr & ACPI_DBGR_RUNNING) 550 acpi_osd_debugger(); 551 #endif 552 } 553 554 static int 555 acpi_detach(device_t self, int flags) 556 { 557 int rc; 558 559 #ifdef ACPI_DEBUGGER 560 if (acpi_dbgr & ACPI_DBGR_RUNNING) 561 acpi_osd_debugger(); 562 #endif 563 564 if ((rc = config_detach_children(self, flags)) != 0) 565 return rc; 566 567 #ifdef ACPI_DEBUGGER 568 if (acpi_dbgr & ACPI_DBGR_PROBE) 569 acpi_osd_debugger(); 570 #endif 571 572 if ((rc = acpitimer_detach()) != 0) 573 return rc; 574 575 #if 0 576 /* 577 * Bring ACPI on-line. 578 */ 579 #ifdef ACPI_DEBUGGER 580 if (acpi_dbgr & ACPI_DBGR_ENABLE) 581 acpi_osd_debugger(); 582 #endif 583 584 #define ACPI_ENABLE_PHASE1 \ 585 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 586 #define ACPI_ENABLE_PHASE2 \ 587 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 588 ACPI_NO_ADDRESS_SPACE_INIT) 589 590 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 591 if (ACPI_FAILURE(rv)) { 592 aprint_error_dev(self, "unable to enable ACPI: %s\n", 593 AcpiFormatException(rv)); 594 return; 595 } 596 597 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 598 if (ACPI_FAILURE(rv)) { 599 aprint_error_dev(self, "unable to enable ACPI: %s\n", 600 AcpiFormatException(rv)); 601 return; 602 } 603 604 /* early EC handler initialization if ECDT table is available */ 605 config_found_ia(self, "acpiecdtbus", NULL, NULL); 606 607 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 608 if (ACPI_FAILURE(rv)) { 609 aprint_error_dev(self, 610 "unable to initialize ACPI objects: %s\n", 611 AcpiFormatException(rv)); 612 return; 613 } 614 acpi_active = 1; 615 616 acpi_enable_fixed_events(sc); 617 #endif 618 619 pmf_device_deregister(self); 620 621 #if 0 622 sysmon_power_settype("acpi"); 623 #endif 624 acpi_softc = NULL; 625 626 return 0; 627 } 628 629 static bool 630 acpi_suspend(device_t dv PMF_FN_ARGS) 631 { 632 acpi_suspended = 1; 633 return true; 634 } 635 636 static bool 637 acpi_resume(device_t dv PMF_FN_ARGS) 638 { 639 acpi_suspended = 0; 640 return true; 641 } 642 643 #if 0 644 /* 645 * acpi_disable: 646 * 647 * Disable ACPI. 648 */ 649 static ACPI_STATUS 650 acpi_disable(struct acpi_softc *sc) 651 { 652 ACPI_STATUS rv = AE_OK; 653 654 if (acpi_active) { 655 rv = AcpiDisable(); 656 if (ACPI_SUCCESS(rv)) 657 acpi_active = 0; 658 } 659 return rv; 660 } 661 #endif 662 663 struct acpi_make_devnode_state { 664 struct acpi_softc *softc; 665 struct acpi_scope *scope; 666 }; 667 668 /* 669 * acpi_build_tree: 670 * 671 * Scan relevant portions of the ACPI namespace and attach 672 * child devices. 673 */ 674 static void 675 acpi_build_tree(struct acpi_softc *sc) 676 { 677 static const char *scopes[] = { 678 "\\_PR_", /* ACPI 1.0 processor namespace */ 679 "\\_SB_", /* system bus namespace */ 680 "\\_SI_", /* system indicator namespace */ 681 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 682 NULL, 683 }; 684 struct acpi_make_devnode_state state; 685 struct acpi_scope *as; 686 ACPI_HANDLE parent; 687 ACPI_STATUS rv; 688 int i; 689 690 TAILQ_INIT(&sc->sc_scopes); 691 692 state.softc = sc; 693 694 /* 695 * Scan the namespace and build our tree. 696 */ 697 for (i = 0; scopes[i] != NULL; i++) { 698 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 699 as->as_name = scopes[i]; 700 TAILQ_INIT(&as->as_devnodes); 701 702 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 703 704 state.scope = as; 705 706 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 707 &parent); 708 if (ACPI_SUCCESS(rv)) { 709 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 710 acpi_make_devnode, &state, NULL); 711 } 712 } 713 714 acpi_rescan1(sc, NULL, NULL); 715 716 acpi_wakedev_scan(sc); 717 718 acpi_pcidev_scan(sc); 719 } 720 721 static int 722 acpi_rescan(device_t self, const char *ifattr, const int *locators) 723 { 724 struct acpi_softc *sc = device_private(self); 725 726 acpi_rescan1(sc, ifattr, locators); 727 return 0; 728 } 729 730 /* XXX share this with sys/arch/i386/pci/elan520.c */ 731 static bool 732 ifattr_match(const char *snull, const char *t) 733 { 734 return (snull == NULL) || strcmp(snull, t) == 0; 735 } 736 737 static void 738 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 739 { 740 if (ifattr_match(ifattr, "acpinodebus")) 741 acpi_rescan_nodes(sc); 742 743 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 744 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 745 NULL); 746 } 747 } 748 749 static void 750 acpi_rescan_nodes(struct acpi_softc *sc) 751 { 752 struct acpi_scope *as; 753 754 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 755 struct acpi_devnode *ad; 756 757 /* Now, for this namespace, try to attach the devices. */ 758 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 759 struct acpi_attach_args aa; 760 761 if (ad->ad_device != NULL) 762 continue; 763 764 aa.aa_node = ad; 765 aa.aa_iot = sc->sc_iot; 766 aa.aa_memt = sc->sc_memt; 767 aa.aa_pc = sc->sc_pc; 768 aa.aa_pciflags = sc->sc_pciflags; 769 aa.aa_ic = sc->sc_ic; 770 771 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 772 /* 773 * XXX We only attach devices which are: 774 * 775 * - present 776 * - enabled 777 * - functioning properly 778 * 779 * However, if enabled, it's decoding resources, 780 * so we should claim them, if possible. 781 * Requires changes to bus_space(9). 782 */ 783 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 784 ACPI_VALID_STA && 785 (ad->ad_devinfo->CurrentStatus & 786 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 787 ACPI_STA_DEV_OK)) != 788 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 789 ACPI_STA_DEV_OK)) 790 continue; 791 } 792 793 /* 794 * XXX Same problem as above... 795 * 796 * Do this check only for devices, as e.g. 797 * a Thermal Zone doesn't have a HID. 798 */ 799 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 800 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 801 continue; 802 803 /* 804 * Handled internally 805 */ 806 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 807 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 808 continue; 809 810 /* 811 * Skip ignored HIDs 812 */ 813 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 814 continue; 815 816 ad->ad_device = config_found_ia(sc->sc_dev, 817 "acpinodebus", &aa, acpi_print); 818 } 819 } 820 } 821 822 #ifdef ACPI_ACTIVATE_DEV 823 static void 824 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 825 { 826 ACPI_STATUS rv; 827 ACPI_DEVICE_INFO *newdi; 828 829 #ifdef ACPI_DEBUG 830 aprint_normal("acpi_activate_device: %s, old status=%x\n", 831 (*di)->HardwareId.Value, (*di)->CurrentStatus); 832 #endif 833 834 rv = acpi_allocate_resources(handle); 835 if (ACPI_FAILURE(rv)) { 836 aprint_error("acpi: activate failed for %s\n", 837 (*di)->HardwareId.String); 838 } else { 839 aprint_verbose("acpi: activated %s\n", 840 (*di)->HardwareId.String); 841 } 842 843 (void)AcpiGetObjectInfo(handle, &newdi); 844 ACPI_FREE(*di); 845 *di = newdi; 846 847 #ifdef ACPI_DEBUG 848 aprint_normal("acpi_activate_device: %s, new status=%x\n", 849 (*di)->HardwareId.Value, (*di)->CurrentStatus); 850 #endif 851 } 852 #endif /* ACPI_ACTIVATE_DEV */ 853 854 /* 855 * acpi_make_devnode: 856 * 857 * Make an ACPI devnode. 858 */ 859 static ACPI_STATUS 860 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 861 void **status) 862 { 863 struct acpi_make_devnode_state *state = context; 864 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 865 struct acpi_softc *sc = state->softc; 866 #endif 867 struct acpi_scope *as = state->scope; 868 struct acpi_devnode *ad; 869 ACPI_OBJECT_TYPE type; 870 ACPI_DEVICE_INFO *devinfo; 871 ACPI_STATUS rv; 872 ACPI_NAME_UNION *anu; 873 int i, clear = 0; 874 875 rv = AcpiGetType(handle, &type); 876 if (ACPI_SUCCESS(rv)) { 877 rv = AcpiGetObjectInfo(handle, &devinfo); 878 if (ACPI_FAILURE(rv)) { 879 #ifdef ACPI_DEBUG 880 aprint_normal_dev(sc->sc_dev, 881 "AcpiGetObjectInfo failed: %s\n", 882 AcpiFormatException(rv)); 883 #endif 884 goto out; /* XXX why return OK */ 885 } 886 887 switch (type) { 888 case ACPI_TYPE_DEVICE: 889 #ifdef ACPI_ACTIVATE_DEV 890 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 891 (ACPI_VALID_STA|ACPI_VALID_HID) && 892 (devinfo->CurrentStatus & 893 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 894 ACPI_STA_DEV_PRESENT) 895 acpi_activate_device(handle, &devinfo); 896 897 /* FALLTHROUGH */ 898 #endif 899 900 case ACPI_TYPE_PROCESSOR: 901 case ACPI_TYPE_THERMAL: 902 case ACPI_TYPE_POWER: 903 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 904 if (ad == NULL) 905 return AE_NO_MEMORY; 906 907 ad->ad_devinfo = devinfo; 908 ad->ad_handle = handle; 909 ad->ad_level = level; 910 ad->ad_scope = as; 911 ad->ad_type = type; 912 913 anu = (ACPI_NAME_UNION *)&devinfo->Name; 914 ad->ad_name[4] = '\0'; 915 for (i = 3, clear = 0; i >= 0; i--) { 916 if (!clear && anu->Ascii[i] == '_') 917 ad->ad_name[i] = '\0'; 918 else { 919 ad->ad_name[i] = anu->Ascii[i]; 920 clear = 1; 921 } 922 } 923 if (ad->ad_name[0] == '\0') 924 ad->ad_name[0] = '_'; 925 926 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 927 928 if (type == ACPI_TYPE_DEVICE && 929 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 930 goto out; 931 932 #ifdef ACPI_EXTRA_DEBUG 933 aprint_normal_dev(sc->sc_dev, 934 "HID %s found in scope %s level %d\n", 935 ad->ad_devinfo->HardwareId.String, 936 as->as_name, ad->ad_level); 937 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 938 aprint_normal(" UID %s\n", 939 ad->ad_devinfo->UniqueId.String); 940 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 941 aprint_normal(" ADR 0x%016" PRIx64 "\n", 942 ad->ad_devinfo->Address); 943 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 944 aprint_normal(" STA 0x%08x\n", 945 ad->ad_devinfo->CurrentStatus); 946 #endif 947 } 948 } 949 out: 950 return AE_OK; 951 } 952 953 /* 954 * acpi_print: 955 * 956 * Autoconfiguration print routine for ACPI node bus. 957 */ 958 static int 959 acpi_print(void *aux, const char *pnp) 960 { 961 struct acpi_attach_args *aa = aux; 962 ACPI_STATUS rv; 963 964 if (pnp) { 965 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 966 char *pnpstr = 967 aa->aa_node->ad_devinfo->HardwareId.String; 968 ACPI_BUFFER buf; 969 970 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 971 pnpstr); 972 973 buf.Pointer = NULL; 974 buf.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 975 rv = AcpiEvaluateObject(aa->aa_node->ad_handle, 976 "_STR", NULL, &buf); 977 if (ACPI_SUCCESS(rv)) { 978 ACPI_OBJECT *obj = buf.Pointer; 979 switch (obj->Type) { 980 case ACPI_TYPE_STRING: 981 aprint_normal("[%s] ", obj->String.Pointer); 982 break; 983 case ACPI_TYPE_BUFFER: 984 aprint_normal("buffer %p ", obj->Buffer.Pointer); 985 break; 986 default: 987 aprint_normal("type %d ",obj->Type); 988 break; 989 } 990 ACPI_FREE(buf.Pointer); 991 } 992 #ifdef ACPIVERBOSE 993 else { 994 int i; 995 996 for (i = 0; i < __arraycount(acpi_knowndevs); 997 i++) { 998 if (strcmp(acpi_knowndevs[i].pnp, 999 pnpstr) == 0) { 1000 aprint_normal("[%s] ", 1001 acpi_knowndevs[i].str); 1002 } 1003 } 1004 } 1005 1006 #endif 1007 aprint_normal("at %s", pnp); 1008 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1009 aprint_normal("%s (ACPI Object Type '%s' " 1010 "[0x%02x]) ", aa->aa_node->ad_name, 1011 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1012 aa->aa_node->ad_devinfo->Type); 1013 aprint_normal("at %s", pnp); 1014 } else 1015 return 0; 1016 } else { 1017 aprint_normal(" (%s", aa->aa_node->ad_name); 1018 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1019 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1020 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1021 const char *uid; 1022 1023 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1024 if (uid[0] == '\0') 1025 uid = "<null>"; 1026 aprint_normal("-%s", uid); 1027 } 1028 } 1029 aprint_normal(")"); 1030 } 1031 1032 return UNCONF; 1033 } 1034 1035 /***************************************************************************** 1036 * ACPI fixed-hardware feature handlers 1037 *****************************************************************************/ 1038 1039 static UINT32 acpi_fixed_button_handler(void *); 1040 static void acpi_fixed_button_pressed(void *); 1041 1042 /* 1043 * acpi_enable_fixed_events: 1044 * 1045 * Enable any fixed-hardware feature handlers. 1046 */ 1047 static void 1048 acpi_enable_fixed_events(struct acpi_softc *sc) 1049 { 1050 static int beenhere; 1051 ACPI_STATUS rv; 1052 1053 KASSERT(beenhere == 0); 1054 beenhere = 1; 1055 1056 /* 1057 * Check for fixed-hardware buttons. 1058 */ 1059 1060 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1061 aprint_verbose_dev(sc->sc_dev, 1062 "fixed-feature power button present\n"); 1063 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1064 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1065 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1066 aprint_error_dev(sc->sc_dev, 1067 "unable to register fixed power " 1068 "button with sysmon\n"); 1069 } else { 1070 rv = AcpiInstallFixedEventHandler( 1071 ACPI_EVENT_POWER_BUTTON, 1072 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1073 if (ACPI_FAILURE(rv)) { 1074 aprint_error_dev(sc->sc_dev, 1075 "unable to install handler " 1076 "for fixed power button: %s\n", 1077 AcpiFormatException(rv)); 1078 } 1079 } 1080 } 1081 1082 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1083 aprint_verbose_dev(sc->sc_dev, 1084 "fixed-feature sleep button present\n"); 1085 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1086 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1087 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1088 aprint_error_dev(sc->sc_dev, 1089 "unable to register fixed sleep " 1090 "button with sysmon\n"); 1091 } else { 1092 rv = AcpiInstallFixedEventHandler( 1093 ACPI_EVENT_SLEEP_BUTTON, 1094 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1095 if (ACPI_FAILURE(rv)) { 1096 aprint_error_dev(sc->sc_dev, 1097 "unable to install handler " 1098 "for fixed sleep button: %s\n", 1099 AcpiFormatException(rv)); 1100 } 1101 } 1102 } 1103 } 1104 1105 /* 1106 * acpi_fixed_button_handler: 1107 * 1108 * Event handler for the fixed buttons. 1109 */ 1110 static UINT32 1111 acpi_fixed_button_handler(void *context) 1112 { 1113 struct sysmon_pswitch *smpsw = context; 1114 ACPI_STATUS rv; 1115 1116 #ifdef ACPI_BUT_DEBUG 1117 printf("%s: fixed button handler\n", smpsw->smpsw_name); 1118 #endif 1119 1120 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 1121 acpi_fixed_button_pressed, smpsw); 1122 if (ACPI_FAILURE(rv)) 1123 printf("%s: WARNING: unable to queue fixed button pressed " 1124 "callback: %s\n", smpsw->smpsw_name, 1125 AcpiFormatException(rv)); 1126 1127 return ACPI_INTERRUPT_HANDLED; 1128 } 1129 1130 /* 1131 * acpi_fixed_button_pressed: 1132 * 1133 * Deal with a fixed button being pressed. 1134 */ 1135 static void 1136 acpi_fixed_button_pressed(void *context) 1137 { 1138 struct sysmon_pswitch *smpsw = context; 1139 1140 #ifdef ACPI_BUT_DEBUG 1141 printf("%s: fixed button pressed, calling sysmon\n", 1142 smpsw->smpsw_name); 1143 #endif 1144 1145 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1146 } 1147 1148 /***************************************************************************** 1149 * ACPI utility routines. 1150 *****************************************************************************/ 1151 1152 /* 1153 * acpi_eval_integer: 1154 * 1155 * Evaluate an integer object. 1156 */ 1157 ACPI_STATUS 1158 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1159 { 1160 ACPI_STATUS rv; 1161 ACPI_BUFFER buf; 1162 ACPI_OBJECT param; 1163 1164 if (handle == NULL) 1165 handle = ACPI_ROOT_OBJECT; 1166 1167 buf.Pointer = ¶m; 1168 buf.Length = sizeof(param); 1169 1170 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1171 ACPI_TYPE_INTEGER); 1172 if (ACPI_SUCCESS(rv)) 1173 *valp = param.Integer.Value; 1174 1175 return rv; 1176 } 1177 1178 ACPI_STATUS 1179 acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1180 { 1181 ACPI_OBJECT param_arg; 1182 ACPI_OBJECT_LIST param_args; 1183 1184 if (handle == NULL) 1185 handle = ACPI_ROOT_OBJECT; 1186 1187 param_arg.Type = ACPI_TYPE_INTEGER; 1188 param_arg.Integer.Value = arg; 1189 1190 param_args.Count = 1; 1191 param_args.Pointer = ¶m_arg; 1192 1193 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1194 } 1195 1196 /* 1197 * acpi_eval_string: 1198 * 1199 * Evaluate a (Unicode) string object. 1200 */ 1201 ACPI_STATUS 1202 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1203 { 1204 ACPI_STATUS rv; 1205 ACPI_BUFFER buf; 1206 1207 if (handle == NULL) 1208 handle = ACPI_ROOT_OBJECT; 1209 1210 buf.Pointer = NULL; 1211 buf.Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1212 1213 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1214 if (ACPI_SUCCESS(rv)) { 1215 ACPI_OBJECT *param = buf.Pointer; 1216 const char *ptr = param->String.Pointer; 1217 size_t len = param->String.Length; 1218 if ((*stringp = ACPI_ALLOCATE(len)) == NULL) 1219 rv = AE_NO_MEMORY; 1220 else 1221 (void)memcpy(*stringp, ptr, len); 1222 ACPI_FREE(param); 1223 } 1224 1225 return rv; 1226 } 1227 1228 1229 /* 1230 * acpi_eval_struct: 1231 * 1232 * Evaluate a more complex structure. 1233 * Caller must free buf.Pointer by ACPI_FREE(). 1234 */ 1235 ACPI_STATUS 1236 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1237 { 1238 ACPI_STATUS rv; 1239 1240 if (handle == NULL) 1241 handle = ACPI_ROOT_OBJECT; 1242 1243 bufp->Pointer = NULL; 1244 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1245 1246 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1247 1248 return rv; 1249 } 1250 1251 /* 1252 * acpi_foreach_package_object: 1253 * 1254 * Iterate over all objects in a in a packages and pass then all 1255 * to a function. If the called function returns non AE_OK, the 1256 * iteration is stopped and that value is returned. 1257 */ 1258 1259 ACPI_STATUS 1260 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1261 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1262 void *arg) 1263 { 1264 ACPI_STATUS rv = AE_OK; 1265 int i; 1266 1267 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1268 return AE_BAD_PARAMETER; 1269 1270 for (i = 0; i < pkg->Package.Count; i++) { 1271 rv = (*func)(&pkg->Package.Elements[i], arg); 1272 if (ACPI_FAILURE(rv)) 1273 break; 1274 } 1275 1276 return rv; 1277 } 1278 1279 const char * 1280 acpi_name(ACPI_HANDLE handle) 1281 { 1282 static char buffer[80]; 1283 ACPI_BUFFER buf; 1284 ACPI_STATUS rv; 1285 1286 buf.Length = sizeof(buffer); 1287 buf.Pointer = buffer; 1288 1289 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1290 if (ACPI_FAILURE(rv)) 1291 return "(unknown acpi path)"; 1292 return buffer; 1293 } 1294 1295 /* 1296 * acpi_get: 1297 * 1298 * Fetch data info the specified (empty) ACPI buffer. 1299 * Caller must free buf.Pointer by ACPI_FREE(). 1300 */ 1301 ACPI_STATUS 1302 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1303 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1304 { 1305 buf->Pointer = NULL; 1306 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1307 1308 return (*getit)(handle, buf); 1309 } 1310 1311 1312 /* 1313 * acpi_match_hid 1314 * 1315 * Match given ids against _HID and _CIDs 1316 */ 1317 int 1318 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1319 { 1320 int i; 1321 1322 while (*ids) { 1323 if (ad->Valid & ACPI_VALID_HID) { 1324 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1325 return 1; 1326 } 1327 1328 if (ad->Valid & ACPI_VALID_CID) { 1329 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1330 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1331 return 1; 1332 } 1333 } 1334 ids++; 1335 } 1336 1337 return 0; 1338 } 1339 1340 /* 1341 * acpi_wake_gpe_helper 1342 * 1343 * Set/unset GPE as both Runtime and Wake 1344 */ 1345 static void 1346 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1347 { 1348 ACPI_BUFFER buf; 1349 ACPI_STATUS rv; 1350 ACPI_OBJECT *p, *elt; 1351 1352 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1353 if (ACPI_FAILURE(rv)) 1354 return; /* just ignore */ 1355 1356 p = buf.Pointer; 1357 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1358 goto out; /* just ignore */ 1359 1360 elt = p->Package.Elements; 1361 1362 /* TBD: package support */ 1363 if (enable) { 1364 AcpiSetGpeType(NULL, elt[0].Integer.Value, 1365 ACPI_GPE_TYPE_WAKE_RUN); 1366 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1367 } else 1368 AcpiDisableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1369 1370 out: 1371 ACPI_FREE(buf.Pointer); 1372 } 1373 1374 /* 1375 * acpi_clear_wake_gpe 1376 * 1377 * Clear GPE as both Runtime and Wake 1378 */ 1379 void 1380 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1381 { 1382 acpi_wake_gpe_helper(handle, false); 1383 } 1384 1385 /* 1386 * acpi_set_wake_gpe 1387 * 1388 * Set GPE as both Runtime and Wake 1389 */ 1390 void 1391 acpi_set_wake_gpe(ACPI_HANDLE handle) 1392 { 1393 acpi_wake_gpe_helper(handle, true); 1394 } 1395 1396 1397 /***************************************************************************** 1398 * ACPI sleep support. 1399 *****************************************************************************/ 1400 1401 static int 1402 is_available_state(struct acpi_softc *sc, int state) 1403 { 1404 UINT8 type_a, type_b; 1405 1406 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1407 &type_a, &type_b)); 1408 } 1409 1410 /* 1411 * acpi_enter_sleep_state: 1412 * 1413 * enter to the specified sleep state. 1414 */ 1415 1416 ACPI_STATUS 1417 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1418 { 1419 int err; 1420 ACPI_STATUS ret = AE_OK; 1421 1422 if (state == acpi_sleepstate) 1423 return AE_OK; 1424 1425 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1426 1427 switch (state) { 1428 case ACPI_STATE_S0: 1429 break; 1430 case ACPI_STATE_S1: 1431 case ACPI_STATE_S2: 1432 case ACPI_STATE_S3: 1433 case ACPI_STATE_S4: 1434 if (!is_available_state(sc, state)) { 1435 aprint_error_dev(sc->sc_dev, 1436 "ACPI S%d not available on this platform\n", state); 1437 break; 1438 } 1439 1440 acpi_wakedev_commit(sc); 1441 1442 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) { 1443 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1444 break; 1445 } 1446 1447 ret = AcpiEnterSleepStatePrep(state); 1448 if (ACPI_FAILURE(ret)) { 1449 aprint_error_dev(sc->sc_dev, 1450 "failed preparing to sleep (%s)\n", 1451 AcpiFormatException(ret)); 1452 break; 1453 } 1454 1455 acpi_sleepstate = state; 1456 if (state == ACPI_STATE_S1) { 1457 /* just enter the state */ 1458 acpi_md_OsDisableInterrupt(); 1459 ret = AcpiEnterSleepState((UINT8)state); 1460 if (ACPI_FAILURE(ret)) 1461 aprint_error_dev(sc->sc_dev, 1462 "failed to enter sleep state S1: %s\n", 1463 AcpiFormatException(ret)); 1464 AcpiLeaveSleepState((UINT8)state); 1465 } else { 1466 err = acpi_md_sleep(state); 1467 if (state == ACPI_STATE_S4) 1468 AcpiEnable(); 1469 pmf_system_bus_resume(PMF_Q_NONE); 1470 AcpiLeaveSleepState((UINT8)state); 1471 pmf_system_resume(PMF_Q_NONE); 1472 } 1473 1474 break; 1475 case ACPI_STATE_S5: 1476 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1477 if (ACPI_FAILURE(ret)) { 1478 aprint_error_dev(sc->sc_dev, 1479 "failed preparing to sleep (%s)\n", 1480 AcpiFormatException(ret)); 1481 break; 1482 } 1483 DELAY(1000000); 1484 acpi_sleepstate = state; 1485 acpi_md_OsDisableInterrupt(); 1486 AcpiEnterSleepState(ACPI_STATE_S5); 1487 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1488 break; 1489 } 1490 1491 acpi_sleepstate = ACPI_STATE_S0; 1492 return ret; 1493 } 1494 1495 #if defined(ACPI_ACTIVATE_DEV) 1496 /* XXX This very incomplete */ 1497 ACPI_STATUS 1498 acpi_allocate_resources(ACPI_HANDLE handle) 1499 { 1500 ACPI_BUFFER bufp, bufc, bufn; 1501 ACPI_RESOURCE *resp, *resc, *resn; 1502 ACPI_RESOURCE_IRQ *irq; 1503 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1504 ACPI_STATUS rv; 1505 uint delta; 1506 1507 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1508 if (ACPI_FAILURE(rv)) 1509 goto out; 1510 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1511 if (ACPI_FAILURE(rv)) { 1512 goto out1; 1513 } 1514 1515 bufn.Length = 1000; 1516 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1517 resp = bufp.Pointer; 1518 resc = bufc.Pointer; 1519 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1520 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1521 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1522 resp = ACPI_NEXT_RESOURCE(resp); 1523 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1524 break; 1525 /* Found identical Id */ 1526 resn->Type = resc->Type; 1527 switch (resc->Type) { 1528 case ACPI_RESOURCE_TYPE_IRQ: 1529 memcpy(&resn->Data, &resp->Data, 1530 sizeof(ACPI_RESOURCE_IRQ)); 1531 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1532 irq->Interrupts[0] = 1533 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1534 Interrupts[irq->InterruptCount-1]; 1535 irq->InterruptCount = 1; 1536 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1537 break; 1538 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1539 memcpy(&resn->Data, &resp->Data, 1540 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1541 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1542 #if 0 1543 /* 1544 * XXX not duplicating the interrupt logic above 1545 * because its not clear what it accomplishes. 1546 */ 1547 xirq->Interrupts[0] = 1548 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1549 Interrupts[irq->NumberOfInterrupts-1]; 1550 xirq->NumberOfInterrupts = 1; 1551 #endif 1552 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1553 break; 1554 case ACPI_RESOURCE_TYPE_IO: 1555 memcpy(&resn->Data, &resp->Data, 1556 sizeof(ACPI_RESOURCE_IO)); 1557 resn->Length = resp->Length; 1558 break; 1559 default: 1560 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1561 rv = AE_BAD_DATA; 1562 goto out2; 1563 } 1564 resc = ACPI_NEXT_RESOURCE(resc); 1565 resn = ACPI_NEXT_RESOURCE(resn); 1566 resp = ACPI_NEXT_RESOURCE(resp); 1567 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1568 if (delta >= 1569 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1570 bufn.Length *= 2; 1571 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1572 M_ACPI, M_WAITOK); 1573 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1574 } 1575 } 1576 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1577 printf("acpi_allocate_resources: resc not exhausted\n"); 1578 rv = AE_BAD_DATA; 1579 goto out3; 1580 } 1581 1582 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1583 rv = AcpiSetCurrentResources(handle, &bufn); 1584 if (ACPI_FAILURE(rv)) { 1585 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1586 AcpiFormatException(rv)); 1587 } 1588 1589 out3: 1590 free(bufn.Pointer, M_ACPI); 1591 out2: 1592 ACPI_FREE(bufc.Pointer); 1593 out1: 1594 ACPI_FREE(bufp.Pointer); 1595 out: 1596 return rv; 1597 } 1598 #endif /* ACPI_ACTIVATE_DEV */ 1599 1600 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1601 { 1602 const struct sysctlnode *node; 1603 const struct sysctlnode *ssnode; 1604 1605 if (sysctl_createv(clog, 0, NULL, NULL, 1606 CTLFLAG_PERMANENT, 1607 CTLTYPE_NODE, "hw", NULL, 1608 NULL, 0, NULL, 0, 1609 CTL_HW, CTL_EOL) != 0) 1610 return; 1611 1612 if (sysctl_createv(clog, 0, NULL, &node, 1613 CTLFLAG_PERMANENT, 1614 CTLTYPE_NODE, "acpi", NULL, 1615 NULL, 0, NULL, 0, 1616 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1617 return; 1618 1619 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1620 CTLTYPE_QUAD, "root", 1621 SYSCTL_DESCR("ACPI root pointer"), 1622 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1623 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1624 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1625 CTLTYPE_STRING, "supported_states", 1626 SYSCTL_DESCR("Supported ACPI system states"), 1627 NULL, 0, acpi_supported_states, 0, 1628 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1629 1630 /* ACPI sleepstate sysctl */ 1631 if (sysctl_createv(NULL, 0, NULL, &node, 1632 CTLFLAG_PERMANENT, 1633 CTLTYPE_NODE, "machdep", NULL, 1634 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1635 return; 1636 if (sysctl_createv(NULL, 0, &node, &ssnode, 1637 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1638 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1639 CTL_EOL) != 0) 1640 return; 1641 } 1642 1643 static int 1644 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1645 { 1646 int error, t; 1647 struct sysctlnode node; 1648 1649 node = *rnode; 1650 t = acpi_sleepstate; 1651 node.sysctl_data = &t; 1652 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1653 if (error || newp == NULL) 1654 return error; 1655 1656 if (acpi_softc == NULL) 1657 return ENOSYS; 1658 1659 acpi_enter_sleep_state(acpi_softc, t); 1660 1661 return 0; 1662 } 1663 1664 static ACPI_TABLE_HEADER * 1665 acpi_map_rsdt(void) 1666 { 1667 ACPI_PHYSICAL_ADDRESS paddr; 1668 ACPI_TABLE_RSDP *rsdp; 1669 1670 paddr = AcpiOsGetRootPointer(); 1671 if (paddr == 0) { 1672 printf("ACPI: couldn't get root pointer\n"); 1673 return NULL; 1674 } 1675 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1676 if (rsdp == NULL) { 1677 printf("ACPI: couldn't map RSDP\n"); 1678 return NULL; 1679 } 1680 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1681 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1682 else 1683 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1684 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1685 1686 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1687 } 1688 1689 static void 1690 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1691 { 1692 if (rsdt == NULL) 1693 return; 1694 1695 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1696 } 1697
Indexes created Wed Oct 01 19:09:53 GMT 2025