acpi.c revision 1.112
1/* $NetBSD: acpi.c,v 1.112 2008/03/12 18:02:21 dyoung 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39/* 40 * Copyright 2001, 2003 Wasabi Systems, Inc. 41 * All rights reserved. 42 * 43 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed for the NetBSD Project by 56 * Wasabi Systems, Inc. 57 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 58 * or promote products derived from this software without specific prior 59 * written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 63 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 64 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 65 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 66 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 67 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 68 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 69 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 70 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 71 * POSSIBILITY OF SUCH DAMAGE. 72 */ 73 74/* 75 * Autoconfiguration support for the Intel ACPI Component Architecture 76 * ACPI reference implementation. 77 */ 78 79#include <sys/cdefs.h> 80__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.112 2008/03/12 18:02:21 dyoung Exp $"); 81 82#include "opt_acpi.h" 83#include "opt_pcifixup.h" 84 85#include <sys/param.h> 86#include <sys/systm.h> 87#include <sys/device.h> 88#include <sys/malloc.h> 89#include <sys/mutex.h> 90#include <sys/kernel.h> 91#include <sys/proc.h> 92#include <sys/sysctl.h> 93 94#include <dev/acpi/acpica.h> 95#include <dev/acpi/acpireg.h> 96#include <dev/acpi/acpivar.h> 97#include <dev/acpi/acpi_osd.h> 98#include <dev/acpi/acpi_timer.h> 99#ifdef ACPIVERBOSE 100#include <dev/acpi/acpidevs_data.h> 101#endif 102 103#if defined(ACPI_PCI_FIXUP) 104#error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 105#endif 106 107#ifdef PCI_INTR_FIXUP_DISABLED 108#include <dev/pci/pcidevs.h> 109#endif 110 111MALLOC_DECLARE(M_ACPI); 112 113#include <machine/acpi_machdep.h> 114 115#ifdef ACPI_DEBUGGER 116#define ACPI_DBGR_INIT 0x01 117#define ACPI_DBGR_TABLES 0x02 118#define ACPI_DBGR_ENABLE 0x04 119#define ACPI_DBGR_PROBE 0x08 120#define ACPI_DBGR_RUNNING 0x10 121 122static int acpi_dbgr = 0x00; 123#endif 124 125static ACPI_TABLE_DESC acpi_initial_tables[128]; 126 127static int acpi_match(device_t, struct cfdata *, void *); 128static void acpi_attach(device_t, device_t, void *); 129static void acpi_childdet(device_t, device_t); 130 131static int acpi_print(void *aux, const char *); 132 133static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 134 135extern struct cfdriver acpi_cd; 136 137CFATTACH_DECL2(acpi, sizeof(struct acpi_softc), 138 acpi_match, acpi_attach, NULL, NULL, NULL, acpi_childdet); 139 140/* 141 * This is a flag we set when the ACPI subsystem is active. Machine 142 * dependent code may wish to skip other steps (such as attaching 143 * subsystems that ACPI supercedes) when ACPI is active. 144 */ 145int acpi_active; 146int acpi_force_load; 147 148/* 149 * Pointer to the ACPI subsystem's state. There can be only 150 * one ACPI instance. 151 */ 152struct acpi_softc *acpi_softc; 153 154/* 155 * Locking stuff. 156 */ 157static kmutex_t acpi_slock; 158static int acpi_locked; 159extern kmutex_t acpi_interrupt_list_mtx; 160 161/* 162 * sysctl-related information 163 */ 164 165static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 166static int acpi_sleepstate = ACPI_STATE_S0; 167static char acpi_supported_states[3 * 6 + 1] = "";; 168 169/* 170 * Prototypes. 171 */ 172static void acpi_build_tree(struct acpi_softc *); 173static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 174 175static void acpi_enable_fixed_events(struct acpi_softc *); 176 177static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 178static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 179static int is_available_state(struct acpi_softc *, int); 180 181/* 182 * acpi_probe: 183 * 184 * Probe for ACPI support. This is called by the 185 * machine-dependent ACPI front-end. All of the 186 * actual work is done by ACPICA. 187 * 188 * NOTE: This is not an autoconfiguration interface function. 189 */ 190int 191acpi_probe(void) 192{ 193 static int beenhere; 194 ACPI_TABLE_HEADER *rsdt; 195 ACPI_STATUS rv; 196 197 if (beenhere != 0) 198 panic("acpi_probe: ACPI has already been probed"); 199 beenhere = 1; 200 201 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 202 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 203 acpi_locked = 0; 204 205 /* 206 * Start up ACPICA. 207 */ 208#ifdef ACPI_DEBUGGER 209 if (acpi_dbgr & ACPI_DBGR_INIT) 210 acpi_osd_debugger(); 211#endif 212 213 AcpiGbl_AllMethodsSerialized = FALSE; 214 AcpiGbl_EnableInterpreterSlack = TRUE; 215 216 rv = AcpiInitializeSubsystem(); 217 if (ACPI_FAILURE(rv)) { 218 printf("ACPI: unable to initialize ACPICA: %s\n", 219 AcpiFormatException(rv)); 220 return 0; 221 } 222 223 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 224 if (ACPI_FAILURE(rv)) { 225 printf("ACPI: unable to initialize ACPI tables: %s\n", 226 AcpiFormatException(rv)); 227 return 0; 228 } 229 230 rv = AcpiReallocateRootTable(); 231 if (ACPI_FAILURE(rv)) { 232 printf("ACPI: unable to reallocate root table: %s\n", 233 AcpiFormatException(rv)); 234 return 0; 235 } 236 237#ifdef ACPI_DEBUGGER 238 if (acpi_dbgr & ACPI_DBGR_TABLES) 239 acpi_osd_debugger(); 240#endif 241 242 rv = AcpiLoadTables(); 243 if (ACPI_FAILURE(rv)) { 244 printf("ACPI: unable to load tables: %s\n", 245 AcpiFormatException(rv)); 246 return 0; 247 } 248 249 rsdt = acpi_map_rsdt(); 250 if (rsdt == NULL) { 251 printf("ACPI: unable to map RSDT\n"); 252 return 0; 253 } 254 255 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 256 printf("ACPI: BIOS implementation in listed as broken:\n"); 257 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 258 "AslId <%4.4s,%08x>\n", 259 rsdt->OemId, rsdt->OemTableId, 260 rsdt->OemRevision, 261 rsdt->AslCompilerId, 262 rsdt->AslCompilerRevision); 263 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 264 acpi_unmap_rsdt(rsdt); 265 return 0; 266 } 267 268 acpi_unmap_rsdt(rsdt); 269 270#if notyet 271 /* Install the default address space handlers. */ 272 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 273 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 274 if (ACPI_FAILURE(rv)) { 275 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 276 AcpiFormatException(rv)); 277 return 0; 278 } 279 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 280 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 281 if (ACPI_FAILURE(rv)) { 282 printf("ACPI: unable to initialise SystemIO handler: %s\n", 283 AcpiFormatException(rv)); 284 return 0; 285 } 286 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 287 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 288 if (ACPI_FAILURE(rv)) { 289 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 290 AcpiFormatException(rv)); 291 return 0; 292 } 293#endif 294 295 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 296 if (ACPI_FAILURE(rv)) { 297 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 298 return 0; 299 } 300 301 /* 302 * Looks like we have ACPI! 303 */ 304 305 return 1; 306} 307 308static int 309acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 310{ 311 struct cfattach *ca; 312 313 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 314 return (ca == &acpi_ca); 315} 316 317int 318acpi_check(device_t parent, const char *ifattr) 319{ 320 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 321} 322 323ACPI_PHYSICAL_ADDRESS 324acpi_OsGetRootPointer(void) 325{ 326 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 327 328 /* 329 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 330 * 331 * IA-64: Use the EFI. 332 * 333 * We let MD code handle this since there are multiple 334 * ways to do it. 335 */ 336 337 PhysicalAddress = acpi_md_OsGetRootPointer(); 338 339 if (acpi_root_pointer == 0) 340 acpi_root_pointer = PhysicalAddress; 341 342 return PhysicalAddress; 343} 344 345/* 346 * acpi_match: 347 * 348 * Autoconfiguration `match' routine. 349 */ 350static int 351acpi_match(device_t parent, struct cfdata *match, void *aux) 352{ 353 /* 354 * XXX Check other locators? Hard to know -- machine 355 * dependent code has already checked for the presence 356 * of ACPI by calling acpi_probe(), so I suppose we 357 * don't really have to do anything else. 358 */ 359 return 1; 360} 361 362/* Remove references to child devices. 363 * 364 * XXX Need to reclaim any resources? 365 */ 366static void 367acpi_childdet(device_t self, device_t child) 368{ 369 struct acpi_softc *sc = device_private(self); 370 struct acpi_scope *as; 371 struct acpi_devnode *ad; 372 373 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 374 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 375 if (ad->ad_device == child) 376 ad->ad_device = NULL; 377 } 378 } 379} 380 381/* 382 * acpi_attach: 383 * 384 * Autoconfiguration `attach' routine. Finish initializing 385 * ACPICA (some initialization was done in acpi_probe(), 386 * which was required to check for the presence of ACPI), 387 * and enable the ACPI subsystem. 388 */ 389static void 390acpi_attach(device_t parent, device_t self, void *aux) 391{ 392 struct acpi_softc *sc = device_private(self); 393 struct acpibus_attach_args *aa = aux; 394 ACPI_STATUS rv; 395 ACPI_TABLE_HEADER *rsdt; 396 397 aprint_naive(": Advanced Configuration and Power Interface\n"); 398 aprint_normal(": Advanced Configuration and Power Interface\n"); 399 400 if (acpi_softc != NULL) 401 panic("acpi_attach: ACPI has already been attached"); 402 403 sysmon_power_settype("acpi"); 404 405 aprint_verbose_dev(&sc->sc_dev, 406 "using Intel ACPI CA subsystem version %08x\n", ACPI_CA_VERSION); 407 408 rsdt = acpi_map_rsdt(); 409 if (rsdt) { 410 aprint_verbose_dev( 411 &sc->sc_dev, 412 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 413 rsdt->OemId, rsdt->OemTableId, 414 rsdt->OemRevision, 415 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 416 } else 417 aprint_error_dev(&sc->sc_dev, "X/RSDT: Not found\n"); 418 acpi_unmap_rsdt(rsdt); 419 420 sc->sc_quirks = acpi_find_quirks(); 421 422 sc->sc_iot = aa->aa_iot; 423 sc->sc_memt = aa->aa_memt; 424 sc->sc_pc = aa->aa_pc; 425 sc->sc_pciflags = aa->aa_pciflags; 426 sc->sc_ic = aa->aa_ic; 427 428 acpi_softc = sc; 429 430 /* 431 * Register null power management handler 432 */ 433 if (!pmf_device_register(self, NULL, NULL)) 434 aprint_error_dev(self, "couldn't establish power handler\n"); 435 436 /* 437 * Bring ACPI on-line. 438 */ 439#ifdef ACPI_DEBUGGER 440 if (acpi_dbgr & ACPI_DBGR_ENABLE) 441 acpi_osd_debugger(); 442#endif 443 444#define ACPI_ENABLE_PHASE1 \ 445 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 446#define ACPI_ENABLE_PHASE2 \ 447 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 448 ACPI_NO_ADDRESS_SPACE_INIT) 449 450 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 451 if (ACPI_FAILURE(rv)) { 452 aprint_error_dev(&sc->sc_dev, "unable to enable ACPI: %s\n", 453 AcpiFormatException(rv)); 454 return; 455 } 456 457 acpi_md_callback(); 458 459 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 460 if (ACPI_FAILURE(rv)) { 461 aprint_error_dev(&sc->sc_dev, "unable to enable ACPI: %s\n", 462 AcpiFormatException(rv)); 463 return; 464 } 465 466 /* early EC handler initialization if ECDT table is available */ 467 config_found_ia(&sc->sc_dev, "acpiecdtbus", NULL, NULL); 468 469 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 470 if (ACPI_FAILURE(rv)) { 471 aprint_error_dev(&sc->sc_dev, 472 "unable to initialize ACPI objects: %s\n", 473 AcpiFormatException(rv)); 474 return; 475 } 476 acpi_active = 1; 477 478 /* Our current state is "awake". */ 479 sc->sc_sleepstate = ACPI_STATE_S0; 480 481 /* Show SCI interrupt. */ 482 aprint_verbose_dev(&sc->sc_dev, "SCI interrupting at int %d\n", 483 AcpiGbl_FADT.SciInterrupt); 484 485 /* 486 * Check for fixed-hardware features. 487 */ 488 acpi_enable_fixed_events(sc); 489 acpitimer_init(); 490 491 /* 492 * Scan the namespace and build our device tree. 493 */ 494#ifdef ACPI_DEBUGGER 495 if (acpi_dbgr & ACPI_DBGR_PROBE) 496 acpi_osd_debugger(); 497#endif 498 acpi_build_tree(sc); 499 500 sprintf(acpi_supported_states, "%s%s%s%s%s%s", 501 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 502 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 503 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 504 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 505 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 506 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 507 508#ifdef ACPI_DEBUGGER 509 if (acpi_dbgr & ACPI_DBGR_RUNNING) 510 acpi_osd_debugger(); 511#endif 512} 513 514#if 0 515/* 516 * acpi_disable: 517 * 518 * Disable ACPI. 519 */ 520static ACPI_STATUS 521acpi_disable(struct acpi_softc *sc) 522{ 523 ACPI_STATUS rv = AE_OK; 524 525 if (acpi_active) { 526 rv = AcpiDisable(); 527 if (ACPI_SUCCESS(rv)) 528 acpi_active = 0; 529 } 530 return rv; 531} 532#endif 533 534struct acpi_make_devnode_state { 535 struct acpi_softc *softc; 536 struct acpi_scope *scope; 537}; 538 539/* 540 * acpi_build_tree: 541 * 542 * Scan relevant portions of the ACPI namespace and attach 543 * child devices. 544 */ 545static void 546acpi_build_tree(struct acpi_softc *sc) 547{ 548 static const char *scopes[] = { 549 "\\_PR_", /* ACPI 1.0 processor namespace */ 550 "\\_SB_", /* system bus namespace */ 551 "\\_SI_", /* system indicator namespace */ 552 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 553 NULL, 554 }; 555 struct acpi_attach_args aa; 556 struct acpi_make_devnode_state state; 557 struct acpi_scope *as; 558 struct acpi_devnode *ad; 559 ACPI_HANDLE parent; 560 ACPI_STATUS rv; 561 int i; 562 563 TAILQ_INIT(&sc->sc_scopes); 564 565 state.softc = sc; 566 567 /* 568 * Scan the namespace and build our tree. 569 */ 570 for (i = 0; scopes[i] != NULL; i++) { 571 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 572 as->as_name = scopes[i]; 573 TAILQ_INIT(&as->as_devnodes); 574 575 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 576 577 state.scope = as; 578 579 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 580 &parent); 581 if (ACPI_SUCCESS(rv)) { 582 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 583 acpi_make_devnode, &state, NULL); 584 } 585 586 /* Now, for this namespace, try and attach the devices. */ 587 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 588 aa.aa_node = ad; 589 aa.aa_iot = sc->sc_iot; 590 aa.aa_memt = sc->sc_memt; 591 aa.aa_pc = sc->sc_pc; 592 aa.aa_pciflags = sc->sc_pciflags; 593 aa.aa_ic = sc->sc_ic; 594 595 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 596 /* 597 * XXX We only attach devices which are: 598 * 599 * - present 600 * - enabled 601 * - functioning properly 602 * 603 * However, if enabled, it's decoding resources, 604 * so we should claim them, if possible. 605 * Requires changes to bus_space(9). 606 */ 607 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 608 ACPI_VALID_STA && 609 (ad->ad_devinfo->CurrentStatus & 610 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 611 ACPI_STA_DEV_OK)) != 612 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 613 ACPI_STA_DEV_OK)) 614 continue; 615 } 616 617 /* 618 * XXX Same problem as above... 619 * 620 * Do this check only for devices, as e.g. 621 * a Thermal Zone doesn't have a HID. 622 */ 623 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 624 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 625 continue; 626 627 ad->ad_device = config_found_ia(&sc->sc_dev, 628 "acpinodebus", &aa, acpi_print); 629 } 630 } 631 config_found_ia(&sc->sc_dev, "acpiapmbus", NULL, NULL); 632} 633 634#ifdef ACPI_ACTIVATE_DEV 635static void 636acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 637{ 638 ACPI_STATUS rv; 639 ACPI_BUFFER buf; 640 641 buf.Pointer = NULL; 642 buf.Length = ACPI_ALLOCATE_BUFFER; 643 644#ifdef ACPI_DEBUG 645 aprint_normal("acpi_activate_device: %s, old status=%x\n", 646 (*di)->HardwareId.Value, (*di)->CurrentStatus); 647#endif 648 649 rv = acpi_allocate_resources(handle); 650 if (ACPI_FAILURE(rv)) { 651 aprint_error("acpi: activate failed for %s\n", 652 (*di)->HardwareId.Value); 653 } else { 654 aprint_verbose("acpi: activated %s\n", 655 (*di)->HardwareId.Value); 656 } 657 658 (void)AcpiGetObjectInfo(handle, &buf); 659 AcpiOsFree(*di); 660 *di = buf.Pointer; 661 662#ifdef ACPI_DEBUG 663 aprint_normal("acpi_activate_device: %s, new status=%x\n", 664 (*di)->HardwareId.Value, (*di)->CurrentStatus); 665#endif 666} 667#endif /* ACPI_ACTIVATE_DEV */ 668 669/* 670 * acpi_make_devnode: 671 * 672 * Make an ACPI devnode. 673 */ 674static ACPI_STATUS 675acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 676 void **status) 677{ 678 struct acpi_make_devnode_state *state = context; 679#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 680 struct acpi_softc *sc = state->softc; 681#endif 682 struct acpi_scope *as = state->scope; 683 struct acpi_devnode *ad; 684 ACPI_OBJECT_TYPE type; 685 ACPI_BUFFER buf; 686 ACPI_DEVICE_INFO *devinfo; 687 ACPI_STATUS rv; 688 ACPI_NAME_UNION *anu; 689 int i, clear = 0; 690 691 rv = AcpiGetType(handle, &type); 692 if (ACPI_SUCCESS(rv)) { 693 buf.Pointer = NULL; 694 buf.Length = ACPI_ALLOCATE_BUFFER; 695 rv = AcpiGetObjectInfo(handle, &buf); 696 if (ACPI_FAILURE(rv)) { 697#ifdef ACPI_DEBUG 698 aprint_normal_dev(&sc->sc_dev, 699 "AcpiGetObjectInfo failed: %s\n", 700 AcpiFormatException(rv)); 701#endif 702 goto out; /* XXX why return OK */ 703 } 704 705 devinfo = buf.Pointer; 706 707 switch (type) { 708 case ACPI_TYPE_DEVICE: 709#ifdef ACPI_ACTIVATE_DEV 710 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 711 (ACPI_VALID_STA|ACPI_VALID_HID) && 712 (devinfo->CurrentStatus & 713 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 714 ACPI_STA_DEV_PRESENT) 715 acpi_activate_device(handle, &devinfo); 716 717 /* FALLTHROUGH */ 718#endif 719 720 case ACPI_TYPE_PROCESSOR: 721 case ACPI_TYPE_THERMAL: 722 case ACPI_TYPE_POWER: 723 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 724 if (ad == NULL) 725 return AE_NO_MEMORY; 726 727 ad->ad_devinfo = devinfo; 728 ad->ad_handle = handle; 729 ad->ad_level = level; 730 ad->ad_scope = as; 731 ad->ad_type = type; 732 733 anu = (ACPI_NAME_UNION *)&devinfo->Name; 734 ad->ad_name[4] = '\0'; 735 for (i = 3, clear = 0; i >= 0; i--) { 736 if (!clear && anu->Ascii[i] == '_') 737 ad->ad_name[i] = '\0'; 738 else { 739 ad->ad_name[i] = anu->Ascii[i]; 740 clear = 1; 741 } 742 } 743 if (ad->ad_name[0] == '\0') 744 ad->ad_name[0] = '_'; 745 746 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 747 748 if (type == ACPI_TYPE_DEVICE && 749 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 750 goto out; 751 752#ifdef ACPI_EXTRA_DEBUG 753 aprint_normal_dev(&sc->sc_dev, 754 "HID %s found in scope %s level %d\n", 755 ad->ad_devinfo->HardwareId.Value, 756 as->as_name, ad->ad_level); 757 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 758 aprint_normal(" UID %s\n", 759 ad->ad_devinfo->UniqueId.Value); 760 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 761 aprint_normal(" ADR 0x%016qx\n", 762 ad->ad_devinfo->Address); 763 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 764 aprint_normal(" STA 0x%08x\n", 765 ad->ad_devinfo->CurrentStatus); 766#endif 767 } 768 } 769 out: 770 return AE_OK; 771} 772 773/* 774 * acpi_print: 775 * 776 * Autoconfiguration print routine for ACPI node bus. 777 */ 778static int 779acpi_print(void *aux, const char *pnp) 780{ 781 struct acpi_attach_args *aa = aux; 782 ACPI_STATUS rv; 783 784 if (pnp) { 785 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 786 char *pnpstr = 787 aa->aa_node->ad_devinfo->HardwareId.Value; 788 char *str; 789 790 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 791 pnpstr); 792 rv = acpi_eval_string(aa->aa_node->ad_handle, 793 "_STR", &str); 794 if (ACPI_SUCCESS(rv)) { 795 aprint_normal("[%s] ", str); 796 AcpiOsFree(str); 797 } 798#ifdef ACPIVERBOSE 799 else { 800 int i; 801 802 for (i = 0; i < sizeof(acpi_knowndevs) / 803 sizeof(acpi_knowndevs[0]); i++) { 804 if (strcmp(acpi_knowndevs[i].pnp, 805 pnpstr) == 0) { 806 aprint_normal("[%s] ", 807 acpi_knowndevs[i].str); 808 } 809 } 810 } 811 812#endif 813 aprint_normal("at %s", pnp); 814 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 815 aprint_normal("%s (ACPI Object Type '%s' " 816 "[0x%02x]) ", aa->aa_node->ad_name, 817 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 818 aa->aa_node->ad_devinfo->Type); 819 aprint_normal("at %s", pnp); 820 } else 821 return 0; 822 } else { 823 aprint_normal(" (%s", aa->aa_node->ad_name); 824 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 825 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.Value); 826 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 827 const char *uid; 828 829 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 830 if (uid[0] == '\0') 831 uid = "<null>"; 832 aprint_normal("-%s", uid); 833 } 834 } 835 aprint_normal(")"); 836 } 837 838 return UNCONF; 839} 840 841/***************************************************************************** 842 * ACPI fixed-hardware feature handlers 843 *****************************************************************************/ 844 845static UINT32 acpi_fixed_button_handler(void *); 846static void acpi_fixed_button_pressed(void *); 847 848/* 849 * acpi_enable_fixed_events: 850 * 851 * Enable any fixed-hardware feature handlers. 852 */ 853static void 854acpi_enable_fixed_events(struct acpi_softc *sc) 855{ 856 static int beenhere; 857 ACPI_STATUS rv; 858 859 KASSERT(beenhere == 0); 860 beenhere = 1; 861 862 /* 863 * Check for fixed-hardware buttons. 864 */ 865 866 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 867 aprint_verbose_dev(&sc->sc_dev, 868 "fixed-feature power button present\n"); 869 sc->sc_smpsw_power.smpsw_name = device_xname(&sc->sc_dev); 870 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 871 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 872 aprint_error_dev(&sc->sc_dev, 873 "unable to register fixed power " 874 "button with sysmon\n"); 875 } else { 876 rv = AcpiInstallFixedEventHandler( 877 ACPI_EVENT_POWER_BUTTON, 878 acpi_fixed_button_handler, &sc->sc_smpsw_power); 879 if (ACPI_FAILURE(rv)) { 880 aprint_error_dev(&sc->sc_dev, 881 "unable to install handler " 882 "for fixed power button: %s\n", 883 AcpiFormatException(rv)); 884 } 885 } 886 } 887 888 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 889 aprint_verbose_dev(&sc->sc_dev, 890 "fixed-feature sleep button present\n"); 891 sc->sc_smpsw_sleep.smpsw_name = device_xname(&sc->sc_dev); 892 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 893 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 894 aprint_error_dev(&sc->sc_dev, 895 "unable to register fixed sleep " 896 "button with sysmon\n"); 897 } else { 898 rv = AcpiInstallFixedEventHandler( 899 ACPI_EVENT_SLEEP_BUTTON, 900 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 901 if (ACPI_FAILURE(rv)) { 902 aprint_error_dev(&sc->sc_dev, 903 "unable to install handler " 904 "for fixed sleep button: %s\n", 905 AcpiFormatException(rv)); 906 } 907 } 908 } 909} 910 911/* 912 * acpi_fixed_button_handler: 913 * 914 * Event handler for the fixed buttons. 915 */ 916static UINT32 917acpi_fixed_button_handler(void *context) 918{ 919 struct sysmon_pswitch *smpsw = context; 920 int rv; 921 922#ifdef ACPI_BUT_DEBUG 923 printf("%s: fixed button handler\n", smpsw->smpsw_name); 924#endif 925 926 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 927 acpi_fixed_button_pressed, smpsw); 928 if (ACPI_FAILURE(rv)) 929 printf("%s: WARNING: unable to queue fixed button pressed " 930 "callback: %s\n", smpsw->smpsw_name, 931 AcpiFormatException(rv)); 932 933 return ACPI_INTERRUPT_HANDLED; 934} 935 936/* 937 * acpi_fixed_button_pressed: 938 * 939 * Deal with a fixed button being pressed. 940 */ 941static void 942acpi_fixed_button_pressed(void *context) 943{ 944 struct sysmon_pswitch *smpsw = context; 945 946#ifdef ACPI_BUT_DEBUG 947 printf("%s: fixed button pressed, calling sysmon\n", 948 smpsw->smpsw_name); 949#endif 950 951 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 952} 953 954/***************************************************************************** 955 * ACPI utility routines. 956 *****************************************************************************/ 957 958/* 959 * acpi_eval_integer: 960 * 961 * Evaluate an integer object. 962 */ 963ACPI_STATUS 964acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 965{ 966 ACPI_STATUS rv; 967 ACPI_BUFFER buf; 968 ACPI_OBJECT param; 969 970 if (handle == NULL) 971 handle = ACPI_ROOT_OBJECT; 972 973 buf.Pointer = ¶m; 974 buf.Length = sizeof(param); 975 976 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 977 if (ACPI_SUCCESS(rv)) 978 *valp = param.Integer.Value; 979 980 return rv; 981} 982 983/* 984 * acpi_eval_string: 985 * 986 * Evaluate a (Unicode) string object. 987 */ 988ACPI_STATUS 989acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 990{ 991 ACPI_STATUS rv; 992 ACPI_BUFFER buf; 993 994 if (handle == NULL) 995 handle = ACPI_ROOT_OBJECT; 996 997 buf.Pointer = NULL; 998 buf.Length = ACPI_ALLOCATE_BUFFER; 999 1000 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1001 if (ACPI_SUCCESS(rv)) { 1002 ACPI_OBJECT *param = buf.Pointer; 1003 const char *ptr = param->String.Pointer; 1004 size_t len = param->String.Length; 1005 if ((*stringp = AcpiOsAllocate(len)) == NULL) 1006 rv = AE_NO_MEMORY; 1007 else 1008 (void)memcpy(*stringp, ptr, len); 1009 AcpiOsFree(param); 1010 } 1011 1012 return rv; 1013} 1014 1015 1016/* 1017 * acpi_eval_struct: 1018 * 1019 * Evaluate a more complex structure. 1020 * Caller must free buf.Pointer by AcpiOsFree(). 1021 */ 1022ACPI_STATUS 1023acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1024{ 1025 ACPI_STATUS rv; 1026 1027 if (handle == NULL) 1028 handle = ACPI_ROOT_OBJECT; 1029 1030 bufp->Pointer = NULL; 1031 bufp->Length = ACPI_ALLOCATE_BUFFER; 1032 1033 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1034 1035 return rv; 1036} 1037 1038/* 1039 * acpi_foreach_package_object: 1040 * 1041 * Iterate over all objects in a in a packages and pass then all 1042 * to a function. If the called function returns non AE_OK, the 1043 * iteration is stopped and that value is returned. 1044 */ 1045 1046ACPI_STATUS 1047acpi_foreach_package_object(ACPI_OBJECT *pkg, 1048 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1049 void *arg) 1050{ 1051 ACPI_STATUS rv = AE_OK; 1052 int i; 1053 1054 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1055 return AE_BAD_PARAMETER; 1056 1057 for (i = 0; i < pkg->Package.Count; i++) { 1058 rv = (*func)(&pkg->Package.Elements[i], arg); 1059 if (ACPI_FAILURE(rv)) 1060 break; 1061 } 1062 1063 return rv; 1064} 1065 1066const char * 1067acpi_name(ACPI_HANDLE handle) 1068{ 1069 static char buffer[80]; 1070 ACPI_BUFFER buf; 1071 ACPI_STATUS rv; 1072 1073 buf.Length = sizeof(buffer); 1074 buf.Pointer = buffer; 1075 1076 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1077 if (ACPI_FAILURE(rv)) 1078 return "(unknown acpi path)"; 1079 return buffer; 1080} 1081 1082/* 1083 * acpi_get: 1084 * 1085 * Fetch data info the specified (empty) ACPI buffer. 1086 * Caller must free buf.Pointer by AcpiOsFree(). 1087 */ 1088ACPI_STATUS 1089acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1090 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1091{ 1092 buf->Pointer = NULL; 1093 buf->Length = ACPI_ALLOCATE_BUFFER; 1094 1095 return (*getit)(handle, buf); 1096} 1097 1098 1099/* 1100 * acpi_match_hid 1101 * 1102 * Match given ids against _HID and _CIDs 1103 */ 1104int 1105acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1106{ 1107 int i; 1108 1109 while (*ids) { 1110 if (ad->Valid & ACPI_VALID_HID) { 1111 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 1112 return 1; 1113 } 1114 1115 if (ad->Valid & ACPI_VALID_CID) { 1116 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1117 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1118 return 1; 1119 } 1120 } 1121 ids++; 1122 } 1123 1124 return 0; 1125} 1126 1127/* 1128 * acpi_set_wake_gpe 1129 * 1130 * Set GPE as both Runtime and Wake 1131 */ 1132void 1133acpi_set_wake_gpe(ACPI_HANDLE handle) 1134{ 1135 ACPI_BUFFER buf; 1136 ACPI_STATUS rv; 1137 ACPI_OBJECT *p, *elt; 1138 1139 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1140 if (ACPI_FAILURE(rv)) 1141 return; /* just ignore */ 1142 1143 p = buf.Pointer; 1144 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1145 goto out; /* just ignore */ 1146 1147 elt = p->Package.Elements; 1148 1149 /* TBD: package support */ 1150 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1151 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1152 1153 out: 1154 AcpiOsFree(buf.Pointer); 1155} 1156 1157 1158/***************************************************************************** 1159 * ACPI sleep support. 1160 *****************************************************************************/ 1161 1162static int 1163is_available_state(struct acpi_softc *sc, int state) 1164{ 1165 UINT8 type_a, type_b; 1166 1167 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1168 &type_a, &type_b)); 1169} 1170 1171/* 1172 * acpi_enter_sleep_state: 1173 * 1174 * enter to the specified sleep state. 1175 */ 1176 1177ACPI_STATUS 1178acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1179{ 1180 int err; 1181 ACPI_STATUS ret = AE_OK; 1182 1183 if (state == acpi_sleepstate) 1184 return AE_OK; 1185 1186 aprint_normal_dev(&sc->sc_dev, "entering state %d\n", state); 1187 1188 switch (state) { 1189 case ACPI_STATE_S0: 1190 break; 1191 case ACPI_STATE_S1: 1192 case ACPI_STATE_S2: 1193 case ACPI_STATE_S3: 1194 case ACPI_STATE_S4: 1195 if (!is_available_state(sc, state)) { 1196 aprint_error_dev(&sc->sc_dev, 1197 "cannot enter the sleep state (%d)\n", state); 1198 break; 1199 } 1200 1201 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_F_NONE)) { 1202 aprint_error_dev(&sc->sc_dev, "aborting suspend\n"); 1203 break; 1204 } 1205 1206 ret = AcpiEnterSleepStatePrep(state); 1207 if (ACPI_FAILURE(ret)) { 1208 aprint_error_dev(&sc->sc_dev, 1209 "failed preparing to sleep (%s)\n", 1210 AcpiFormatException(ret)); 1211 break; 1212 } 1213 1214 acpi_sleepstate = state; 1215 if (state == ACPI_STATE_S1) { 1216 /* just enter the state */ 1217 acpi_md_OsDisableInterrupt(); 1218 AcpiEnterSleepState((UINT8)state); 1219 AcpiLeaveSleepState((UINT8)state); 1220 } else { 1221 err = acpi_md_sleep(state); 1222 if (state == ACPI_STATE_S4) 1223 AcpiEnable(); 1224 pmf_system_bus_resume(PMF_F_NONE); 1225 AcpiLeaveSleepState((UINT8)state); 1226 pmf_system_resume(PMF_F_NONE); 1227 } 1228 1229 break; 1230 case ACPI_STATE_S5: 1231 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1232 if (ACPI_FAILURE(ret)) { 1233 aprint_error_dev(&sc->sc_dev, 1234 "failed preparing to sleep (%s)\n", 1235 AcpiFormatException(ret)); 1236 break; 1237 } 1238 DELAY(1000000); 1239 acpi_sleepstate = state; 1240 acpi_md_OsDisableInterrupt(); 1241 AcpiEnterSleepState(ACPI_STATE_S5); 1242 aprint_error_dev(&sc->sc_dev, "WARNING powerdown failed!\n"); 1243 break; 1244 } 1245 1246 acpi_sleepstate = ACPI_STATE_S0; 1247 return ret; 1248} 1249 1250#if defined(ACPI_ACTIVATE_DEV) 1251/* XXX This very incomplete */ 1252ACPI_STATUS 1253acpi_allocate_resources(ACPI_HANDLE handle) 1254{ 1255 ACPI_BUFFER bufp, bufc, bufn; 1256 ACPI_RESOURCE *resp, *resc, *resn; 1257 ACPI_RESOURCE_IRQ *irq; 1258 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1259 ACPI_STATUS rv; 1260 uint delta; 1261 1262 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1263 if (ACPI_FAILURE(rv)) 1264 goto out; 1265 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1266 if (ACPI_FAILURE(rv)) { 1267 goto out1; 1268 } 1269 1270 bufn.Length = 1000; 1271 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1272 resp = bufp.Pointer; 1273 resc = bufc.Pointer; 1274 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1275 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1276 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1277 resp = ACPI_NEXT_RESOURCE(resp); 1278 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1279 break; 1280 /* Found identical Id */ 1281 resn->Type = resc->Type; 1282 switch (resc->Type) { 1283 case ACPI_RESOURCE_TYPE_IRQ: 1284 memcpy(&resn->Data, &resp->Data, 1285 sizeof(ACPI_RESOURCE_IRQ)); 1286 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1287 irq->Interrupts[0] = 1288 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1289 Interrupts[irq->InterruptCount-1]; 1290 irq->InterruptCount = 1; 1291 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1292 break; 1293 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1294 memcpy(&resn->Data, &resp->Data, 1295 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1296 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1297#if 0 1298 /* 1299 * XXX not duplicating the interrupt logic above 1300 * because its not clear what it accomplishes. 1301 */ 1302 xirq->Interrupts[0] = 1303 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1304 Interrupts[irq->NumberOfInterrupts-1]; 1305 xirq->NumberOfInterrupts = 1; 1306#endif 1307 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1308 break; 1309 case ACPI_RESOURCE_TYPE_IO: 1310 memcpy(&resn->Data, &resp->Data, 1311 sizeof(ACPI_RESOURCE_IO)); 1312 resn->Length = resp->Length; 1313 break; 1314 default: 1315 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1316 rv = AE_BAD_DATA; 1317 goto out2; 1318 } 1319 resc = ACPI_NEXT_RESOURCE(resc); 1320 resn = ACPI_NEXT_RESOURCE(resn); 1321 resp = ACPI_NEXT_RESOURCE(resp); 1322 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1323 if (delta >= 1324 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1325 bufn.Length *= 2; 1326 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1327 M_ACPI, M_WAITOK); 1328 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1329 } 1330 } 1331 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1332 printf("acpi_allocate_resources: resc not exhausted\n"); 1333 rv = AE_BAD_DATA; 1334 goto out3; 1335 } 1336 1337 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1338 rv = AcpiSetCurrentResources(handle, &bufn); 1339 if (ACPI_FAILURE(rv)) { 1340 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1341 AcpiFormatException(rv)); 1342 } 1343 1344out3: 1345 free(bufn.Pointer, M_ACPI); 1346out2: 1347 AcpiOsFree(bufc.Pointer); 1348out1: 1349 AcpiOsFree(bufp.Pointer); 1350out: 1351 return rv; 1352} 1353#endif /* ACPI_ACTIVATE_DEV */ 1354 1355SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1356{ 1357 const struct sysctlnode *node; 1358 const struct sysctlnode *ssnode; 1359 1360 if (sysctl_createv(clog, 0, NULL, NULL, 1361 CTLFLAG_PERMANENT, 1362 CTLTYPE_NODE, "hw", NULL, 1363 NULL, 0, NULL, 0, 1364 CTL_HW, CTL_EOL) != 0) 1365 return; 1366 1367 if (sysctl_createv(clog, 0, NULL, &node, 1368 CTLFLAG_PERMANENT, 1369 CTLTYPE_NODE, "acpi", NULL, 1370 NULL, 0, NULL, 0, 1371 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1372 return; 1373 1374 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1375 CTLTYPE_QUAD, "root", 1376 SYSCTL_DESCR("ACPI root pointer"), 1377 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1378 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1379 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1380 CTLTYPE_STRING, "supported_states", 1381 SYSCTL_DESCR("Supported ACPI system states"), 1382 NULL, 0, acpi_supported_states, 0, 1383 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1384 1385 /* ACPI sleepstate sysctl */ 1386 if (sysctl_createv(NULL, 0, NULL, &node, 1387 CTLFLAG_PERMANENT, 1388 CTLTYPE_NODE, "machdep", NULL, 1389 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1390 return; 1391 if (sysctl_createv(NULL, 0, &node, &ssnode, 1392 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1393 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1394 CTL_EOL) != 0) 1395 return; 1396} 1397 1398static int 1399sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1400{ 1401 int error, t; 1402 struct sysctlnode node; 1403 1404 node = *rnode; 1405 t = acpi_sleepstate; 1406 node.sysctl_data = &t; 1407 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1408 if (error || newp == NULL) 1409 return error; 1410 1411 if (acpi_softc == NULL) 1412 return ENOSYS; 1413 1414 acpi_enter_sleep_state(acpi_softc, t); 1415 1416 return 0; 1417} 1418 1419static ACPI_TABLE_HEADER * 1420acpi_map_rsdt(void) 1421{ 1422 ACPI_PHYSICAL_ADDRESS paddr; 1423 ACPI_TABLE_RSDP *rsdp; 1424 1425 paddr = AcpiOsGetRootPointer(); 1426 if (paddr == 0) { 1427 printf("ACPI: couldn't get root pointer\n"); 1428 return NULL; 1429 } 1430 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1431 if (rsdp == NULL) { 1432 printf("ACPI: couldn't map RSDP\n"); 1433 return NULL; 1434 } 1435 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1436 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1437 else 1438 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1439 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1440 1441 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1442} 1443 1444static void 1445acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1446{ 1447 if (rsdt == NULL) 1448 return; 1449 1450 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1451} 1452