acpi.c revision 1.90
1/* $NetBSD: acpi.c,v 1.90 2006/06/21 17:47:23 drochner Exp $ */ 2 3/*- 4 * Copyright (c) 2003 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 1.90 2006/06/21 17:47:23 drochner 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/kernel.h> 90#include <sys/proc.h> 91#include <sys/sysctl.h> 92 93#include <dev/acpi/acpica.h> 94#include <dev/acpi/acpireg.h> 95#include <dev/acpi/acpivar.h> 96#include <dev/acpi/acpi_osd.h> 97#include <dev/acpi/acpi_timer.h> 98#ifdef ACPIVERBOSE 99#include <dev/acpi/acpidevs_data.h> 100#endif 101 102#if defined(ACPI_PCI_FIXUP) 103#error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP. Please adjust your kernel configuration file. 104#endif 105 106#ifdef PCI_INTR_FIXUP 107#include <dev/pci/pcidevs.h> 108#endif 109 110MALLOC_DECLARE(M_ACPI); 111 112#include <machine/acpi_machdep.h> 113 114#ifdef ACPI_DEBUGGER 115#define ACPI_DBGR_INIT 0x01 116#define ACPI_DBGR_TABLES 0x02 117#define ACPI_DBGR_ENABLE 0x04 118#define ACPI_DBGR_PROBE 0x08 119#define ACPI_DBGR_RUNNING 0x10 120 121static int acpi_dbgr = 0x00; 122#endif 123 124static int acpi_match(struct device *, struct cfdata *, void *); 125static void acpi_attach(struct device *, struct device *, void *); 126 127static int acpi_print(void *aux, const char *); 128 129static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 130 131extern struct cfdriver acpi_cd; 132 133CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 134 acpi_match, acpi_attach, NULL, NULL); 135 136/* 137 * This is a flag we set when the ACPI subsystem is active. Machine 138 * dependent code may wish to skip other steps (such as attaching 139 * subsystems that ACPI supercedes) when ACPI is active. 140 */ 141int acpi_active; 142 143/* 144 * Pointer to the ACPI subsystem's state. There can be only 145 * one ACPI instance. 146 */ 147struct acpi_softc *acpi_softc; 148 149/* 150 * Locking stuff. 151 */ 152static struct simplelock acpi_slock; 153static int acpi_locked; 154 155/* 156 * sysctl-related information 157 */ 158 159static int acpi_node = CTL_EOL; 160static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 161static int acpi_sleepstate = ACPI_STATE_S0; 162 163/* 164 * Prototypes. 165 */ 166static void acpi_shutdown(void *); 167static void acpi_build_tree(struct acpi_softc *); 168static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 169 170static void acpi_enable_fixed_events(struct acpi_softc *); 171#ifdef PCI_INTR_FIXUP 172void acpi_pci_fixup(struct acpi_softc *); 173#endif 174#if defined(PCI_INTR_FIXUP) || defined(ACPI_ACTIVATE_DEV) 175static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE handle); 176#endif 177 178/* 179 * acpi_probe: 180 * 181 * Probe for ACPI support. This is called by the 182 * machine-dependent ACPI front-end. All of the 183 * actual work is done by ACPICA. 184 * 185 * NOTE: This is not an autoconfiguration interface function. 186 */ 187int 188acpi_probe(void) 189{ 190 static int beenhere; 191 ACPI_STATUS rv; 192 193 if (beenhere != 0) 194 panic("acpi_probe: ACPI has already been probed"); 195 beenhere = 1; 196 197 simple_lock_init(&acpi_slock); 198 acpi_locked = 0; 199 200 /* 201 * Start up ACPICA. 202 */ 203#ifdef ACPI_DEBUGGER 204 if (acpi_dbgr & ACPI_DBGR_INIT) 205 acpi_osd_debugger(); 206#endif 207 208 rv = AcpiInitializeSubsystem(); 209 if (ACPI_FAILURE(rv)) { 210 printf("ACPI: unable to initialize ACPICA: %s\n", 211 AcpiFormatException(rv)); 212 return 0; 213 } 214 215#ifdef ACPI_DEBUGGER 216 if (acpi_dbgr & ACPI_DBGR_TABLES) 217 acpi_osd_debugger(); 218#endif 219 220 rv = AcpiLoadTables(); 221 if (ACPI_FAILURE(rv)) { 222 printf("ACPI: unable to load tables: %s\n", 223 AcpiFormatException(rv)); 224 return 0; 225 } 226 227 /* 228 * Looks like we have ACPI! 229 */ 230 231 return 1; 232} 233 234ACPI_STATUS 235acpi_OsGetRootPointer(UINT32 Flags, ACPI_POINTER *PhysicalAddress) 236{ 237 ACPI_STATUS rv; 238 239 /* 240 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 241 * 242 * IA-64: Use the EFI. 243 * 244 * We let MD code handle this since there are multiple 245 * ways to do it. 246 */ 247 248 rv = acpi_md_OsGetRootPointer(Flags, PhysicalAddress); 249 250 if (acpi_root_pointer == 0 && ACPI_SUCCESS(rv)) 251 acpi_root_pointer = 252 (uint64_t)PhysicalAddress->Pointer.Physical; 253 254 return rv; 255} 256 257/* 258 * acpi_match: 259 * 260 * Autoconfiguration `match' routine. 261 */ 262static int 263acpi_match(struct device *parent, struct cfdata *match, void *aux) 264{ 265 /* 266 * XXX Check other locators? Hard to know -- machine 267 * dependent code has already checked for the presence 268 * of ACPI by calling acpi_probe(), so I suppose we 269 * don't really have to do anything else. 270 */ 271 return 1; 272} 273 274/* 275 * acpi_attach: 276 * 277 * Autoconfiguration `attach' routine. Finish initializing 278 * ACPICA (some initialization was done in acpi_probe(), 279 * which was required to check for the presence of ACPI), 280 * and enable the ACPI subsystem. 281 */ 282static void 283acpi_attach(struct device *parent, struct device *self, void *aux) 284{ 285 struct acpi_softc *sc = (void *) self; 286 struct acpibus_attach_args *aa = aux; 287 ACPI_STATUS rv; 288 289 aprint_naive(": Advanced Configuration and Power Interface\n"); 290 aprint_normal(": Advanced Configuration and Power Interface\n"); 291 292 if (acpi_softc != NULL) 293 panic("acpi_attach: ACPI has already been attached"); 294 295 sysmon_power_settype("acpi"); 296 297 aprint_verbose("%s: using Intel ACPI CA subsystem version %08x\n", 298 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 299 300 aprint_verbose("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 301 sc->sc_dev.dv_xname, 302 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 303 AcpiGbl_XSDT->OemRevision, 304 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 305 306 sc->sc_quirks = acpi_find_quirks(); 307 308 sc->sc_iot = aa->aa_iot; 309 sc->sc_memt = aa->aa_memt; 310 sc->sc_pc = aa->aa_pc; 311 sc->sc_pciflags = aa->aa_pciflags; 312 sc->sc_ic = aa->aa_ic; 313 314 acpi_softc = sc; 315 316 /* 317 * Bring ACPI on-line. 318 */ 319#ifdef ACPI_DEBUGGER 320 if (acpi_dbgr & ACPI_DBGR_ENABLE) 321 acpi_osd_debugger(); 322#endif 323 324 rv = AcpiEnableSubsystem(0); 325 if (ACPI_FAILURE(rv)) { 326 aprint_error("%s: unable to enable ACPI: %s\n", 327 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 328 return; 329 } 330 331 /* early EC handler initialization if ECDT table is available */ 332#if NACPIEC > 0 333 acpiec_early_attach(&sc->sc_dev); 334#endif 335 336 rv = AcpiInitializeObjects(0); 337 if (ACPI_FAILURE(rv)) { 338 aprint_error("%s: unable to initialize ACPI objects: %s\n", 339 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 340 return; 341 } 342 acpi_active = 1; 343 344 /* Our current state is "awake". */ 345 sc->sc_sleepstate = ACPI_STATE_S0; 346 347 /* Show SCI interrupt. */ 348 if (AcpiGbl_FADT != NULL) 349 aprint_verbose("%s: SCI interrupting at int %d\n", 350 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 351 /* 352 * Check for fixed-hardware features. 353 */ 354 acpi_enable_fixed_events(sc); 355 acpitimer_init(); 356 357 /* 358 * Fix up PCI devices. 359 */ 360#ifdef PCI_INTR_FIXUP 361 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 362 acpi_pci_fixup(sc); 363#endif 364 365 /* 366 * Scan the namespace and build our device tree. 367 */ 368#ifdef ACPI_DEBUGGER 369 if (acpi_dbgr & ACPI_DBGR_PROBE) 370 acpi_osd_debugger(); 371#endif 372 acpi_md_callback((struct device *)sc); 373 acpi_build_tree(sc); 374 375 if (acpi_root_pointer != 0 && acpi_node != CTL_EOL) { 376 (void)sysctl_createv(NULL, 0, NULL, NULL, 377 CTLFLAG_IMMEDIATE, 378 CTLTYPE_QUAD, "root", NULL, NULL, 379 acpi_root_pointer, NULL, 0, 380 CTL_HW, acpi_node, CTL_CREATE, CTL_EOL); 381 } 382 383 384 /* 385 * Register a shutdown hook that disables certain ACPI 386 * events that might happen and confuse us while we're 387 * trying to shut down. 388 */ 389 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 390 if (sc->sc_sdhook == NULL) 391 aprint_error("%s: WARNING: unable to register shutdown hook\n", 392 sc->sc_dev.dv_xname); 393 394#ifdef ACPI_DEBUGGER 395 if (acpi_dbgr & ACPI_DBGR_RUNNING) 396 acpi_osd_debugger(); 397#endif 398} 399 400/* 401 * acpi_shutdown: 402 * 403 * Shutdown hook for ACPI -- disable some events that 404 * might confuse us. 405 */ 406static void 407acpi_shutdown(void *arg) 408{ 409 /* nothing */ 410} 411 412#if 0 413/* 414 * acpi_disable: 415 * 416 * Disable ACPI. 417 */ 418static ACPI_STATUS 419acpi_disable(struct acpi_softc *sc) 420{ 421 ACPI_STATUS rv = AE_OK; 422 423 if (acpi_active) { 424 rv = AcpiDisable(); 425 if (ACPI_SUCCESS(rv)) 426 acpi_active = 0; 427 } 428 return rv; 429} 430#endif 431 432struct acpi_make_devnode_state { 433 struct acpi_softc *softc; 434 struct acpi_scope *scope; 435}; 436 437/* 438 * acpi_build_tree: 439 * 440 * Scan relevant portions of the ACPI namespace and attach 441 * child devices. 442 */ 443static void 444acpi_build_tree(struct acpi_softc *sc) 445{ 446 static const char *scopes[] = { 447 "\\_PR_", /* ACPI 1.0 processor namespace */ 448 "\\_SB_", /* system bus namespace */ 449 "\\_SI_", /* system idicator namespace */ 450 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 451 NULL, 452 }; 453 struct acpi_attach_args aa; 454 struct acpi_make_devnode_state state; 455 struct acpi_scope *as; 456 struct acpi_devnode *ad; 457 ACPI_HANDLE parent; 458 ACPI_STATUS rv; 459 int i; 460 461 TAILQ_INIT(&sc->sc_scopes); 462 463 state.softc = sc; 464 465 /* 466 * Scan the namespace and build our tree. 467 */ 468 for (i = 0; scopes[i] != NULL; i++) { 469 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 470 as->as_name = scopes[i]; 471 TAILQ_INIT(&as->as_devnodes); 472 473 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 474 475 state.scope = as; 476 477 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 478 &parent); 479 if (ACPI_SUCCESS(rv)) { 480 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 481 acpi_make_devnode, &state, NULL); 482 } 483 484 /* Now, for this namespace, try and attach the devices. */ 485 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 486 aa.aa_node = ad; 487 aa.aa_iot = sc->sc_iot; 488 aa.aa_memt = sc->sc_memt; 489 aa.aa_pc = sc->sc_pc; 490 aa.aa_pciflags = sc->sc_pciflags; 491 aa.aa_ic = sc->sc_ic; 492 493 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 494 /* 495 * XXX We only attach devices which are: 496 * 497 * - present 498 * - enabled 499 * - functioning properly 500 * 501 * However, if enabled, it's decoding resources, 502 * so we should claim them, if possible. 503 * Requires changes to bus_space(9). 504 */ 505 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 506 ACPI_VALID_STA && 507 (ad->ad_devinfo->CurrentStatus & 508 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 509 ACPI_STA_DEV_OK)) != 510 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 511 ACPI_STA_DEV_OK)) 512 continue; 513 514 /* 515 * XXX Same problem as above... 516 */ 517 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 518 == 0) 519 continue; 520 } 521 522 ad->ad_device = config_found(&sc->sc_dev, 523 &aa, acpi_print); 524 } 525 } 526} 527 528#ifdef ACPI_ACTIVATE_DEV 529static void 530acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 531{ 532 ACPI_STATUS rv; 533 ACPI_BUFFER buf; 534 535 buf.Pointer = NULL; 536 buf.Length = ACPI_ALLOCATE_BUFFER; 537 538#ifdef ACPI_DEBUG 539 aprint_normal("acpi_activate_device: %s, old status=%x\n", 540 (*di)->HardwareId.Value, (*di)->CurrentStatus); 541#endif 542 543 rv = acpi_allocate_resources(handle); 544 if (ACPI_FAILURE(rv)) { 545 aprint_error("acpi: activate failed for %s\n", 546 (*di)->HardwareId.Value); 547 } else { 548 aprint_normal("acpi: activated %s\n", (*di)->HardwareId.Value); 549 } 550 551 (void)AcpiGetObjectInfo(handle, &buf); 552 AcpiOsFree(*di); 553 *di = buf.Pointer; 554 555#ifdef ACPI_DEBUG 556 aprint_normal("acpi_activate_device: %s, new status=%x\n", 557 (*di)->HardwareId.Value, (*di)->CurrentStatus); 558#endif 559} 560#endif /* ACPI_ACTIVATE_DEV */ 561 562/* 563 * acpi_make_devnode: 564 * 565 * Make an ACPI devnode. 566 */ 567static ACPI_STATUS 568acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 569 void **status) 570{ 571 struct acpi_make_devnode_state *state = context; 572#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 573 struct acpi_softc *sc = state->softc; 574#endif 575 struct acpi_scope *as = state->scope; 576 struct acpi_devnode *ad; 577 ACPI_OBJECT_TYPE type; 578 ACPI_BUFFER buf; 579 ACPI_DEVICE_INFO *devinfo; 580 ACPI_STATUS rv; 581 582 rv = AcpiGetType(handle, &type); 583 if (ACPI_SUCCESS(rv)) { 584 buf.Pointer = NULL; 585 buf.Length = ACPI_ALLOCATE_BUFFER; 586 rv = AcpiGetObjectInfo(handle, &buf); 587 if (ACPI_FAILURE(rv)) { 588#ifdef ACPI_DEBUG 589 aprint_normal("%s: AcpiGetObjectInfo failed: %s\n", 590 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 591#endif 592 goto out; /* XXX why return OK */ 593 } 594 595 devinfo = buf.Pointer; 596 597 switch (type) { 598 case ACPI_TYPE_DEVICE: 599#ifdef ACPI_ACTIVATE_DEV 600 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 601 (ACPI_VALID_STA|ACPI_VALID_HID) && 602 (devinfo->CurrentStatus & 603 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 604 ACPI_STA_DEV_PRESENT) 605 acpi_activate_device(handle, &devinfo); 606 607 /* FALLTHROUGH */ 608#endif 609 610 case ACPI_TYPE_PROCESSOR: 611 case ACPI_TYPE_THERMAL: 612 case ACPI_TYPE_POWER: 613 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 614 if (ad == NULL) 615 return AE_NO_MEMORY; 616 617 ad->ad_devinfo = devinfo; 618 ad->ad_handle = handle; 619 ad->ad_level = level; 620 ad->ad_scope = as; 621 ad->ad_type = type; 622 623 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 624 625 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 626 goto out; 627 628#ifdef ACPI_EXTRA_DEBUG 629 aprint_normal("%s: HID %s found in scope %s level %d\n", 630 sc->sc_dev.dv_xname, 631 ad->ad_devinfo->HardwareId.Value, 632 as->as_name, ad->ad_level); 633 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 634 aprint_normal(" UID %s\n", 635 ad->ad_devinfo->UniqueId.Value); 636 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 637 aprint_normal(" ADR 0x%016qx\n", 638 ad->ad_devinfo->Address); 639 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 640 aprint_normal(" STA 0x%08x\n", 641 ad->ad_devinfo->CurrentStatus); 642#endif 643 } 644 } 645 out: 646 return AE_OK; 647} 648 649/* 650 * acpi_print: 651 * 652 * Autoconfiguration print routine. 653 */ 654static int 655acpi_print(void *aux, const char *pnp) 656{ 657 struct acpi_attach_args *aa = aux; 658 ACPI_STATUS rv; 659 660 if (pnp) { 661 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 662 char *pnpstr = 663 aa->aa_node->ad_devinfo->HardwareId.Value; 664 char *str; 665 666 aprint_normal("%s ", pnpstr); 667 rv = acpi_eval_string(aa->aa_node->ad_handle, 668 "_STR", &str); 669 if (ACPI_SUCCESS(rv)) { 670 aprint_normal("[%s] ", str); 671 AcpiOsFree(str); 672 } 673#ifdef ACPIVERBOSE 674 else { 675 int i; 676 677 for (i = 0; i < sizeof(acpi_knowndevs) / 678 sizeof(acpi_knowndevs[0]); i++) { 679 if (strcmp(acpi_knowndevs[i].pnp, 680 pnpstr) == 0) { 681 aprint_normal("[%s] ", 682 acpi_knowndevs[i].str); 683 } 684 } 685 } 686 687#endif 688 } else { 689 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 690 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 691 aa->aa_node->ad_devinfo->Type); 692 } 693 aprint_normal("at %s", pnp); 694 } else { 695 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 696 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 697 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 698 const char *uid; 699 700 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 701 if (uid[0] == '\0') 702 uid = "<null>"; 703 aprint_normal("-%s", uid); 704 } 705 aprint_normal(")"); 706 } 707 } 708 709 return UNCONF; 710} 711 712/***************************************************************************** 713 * ACPI fixed-hardware feature handlers 714 *****************************************************************************/ 715 716static UINT32 acpi_fixed_button_handler(void *); 717static void acpi_fixed_button_pressed(void *); 718 719/* 720 * acpi_enable_fixed_events: 721 * 722 * Enable any fixed-hardware feature handlers. 723 */ 724static void 725acpi_enable_fixed_events(struct acpi_softc *sc) 726{ 727 static int beenhere; 728 ACPI_STATUS rv; 729 730 KASSERT(beenhere == 0); 731 beenhere = 1; 732 733 /* 734 * Check for fixed-hardware buttons. 735 */ 736 737 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 738 aprint_normal("%s: fixed-feature power button present\n", 739 sc->sc_dev.dv_xname); 740 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 741 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 742 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 743 aprint_error("%s: unable to register fixed power " 744 "button with sysmon\n", sc->sc_dev.dv_xname); 745 } else { 746 rv = AcpiInstallFixedEventHandler( 747 ACPI_EVENT_POWER_BUTTON, 748 acpi_fixed_button_handler, &sc->sc_smpsw_power); 749 if (ACPI_FAILURE(rv)) { 750 aprint_error("%s: unable to install handler " 751 "for fixed power button: %s\n", 752 sc->sc_dev.dv_xname, 753 AcpiFormatException(rv)); 754 } 755 } 756 } 757 758 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 759 aprint_normal("%s: fixed-feature sleep button present\n", 760 sc->sc_dev.dv_xname); 761 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 762 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 763 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 764 aprint_error("%s: unable to register fixed sleep " 765 "button with sysmon\n", sc->sc_dev.dv_xname); 766 } else { 767 rv = AcpiInstallFixedEventHandler( 768 ACPI_EVENT_SLEEP_BUTTON, 769 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 770 if (ACPI_FAILURE(rv)) { 771 aprint_error("%s: unable to install handler " 772 "for fixed sleep button: %s\n", 773 sc->sc_dev.dv_xname, 774 AcpiFormatException(rv)); 775 } 776 } 777 } 778} 779 780/* 781 * acpi_fixed_button_handler: 782 * 783 * Event handler for the fixed buttons. 784 */ 785static UINT32 786acpi_fixed_button_handler(void *context) 787{ 788 struct sysmon_pswitch *smpsw = context; 789 int rv; 790 791#ifdef ACPI_BUT_DEBUG 792 printf("%s: fixed button handler\n", smpsw->smpsw_name); 793#endif 794 795 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 796 acpi_fixed_button_pressed, smpsw); 797 if (ACPI_FAILURE(rv)) 798 printf("%s: WARNING: unable to queue fixed button pressed " 799 "callback: %s\n", smpsw->smpsw_name, 800 AcpiFormatException(rv)); 801 802 return ACPI_INTERRUPT_HANDLED; 803} 804 805/* 806 * acpi_fixed_button_pressed: 807 * 808 * Deal with a fixed button being pressed. 809 */ 810static void 811acpi_fixed_button_pressed(void *context) 812{ 813 struct sysmon_pswitch *smpsw = context; 814 815#ifdef ACPI_BUT_DEBUG 816 printf("%s: fixed button pressed, calling sysmon\n", 817 smpsw->smpsw_name); 818#endif 819 820 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 821} 822 823/***************************************************************************** 824 * ACPI utility routines. 825 *****************************************************************************/ 826 827/* 828 * acpi_eval_integer: 829 * 830 * Evaluate an integer object. 831 */ 832ACPI_STATUS 833acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 834{ 835 ACPI_STATUS rv; 836 ACPI_BUFFER buf; 837 ACPI_OBJECT param; 838 839 if (handle == NULL) 840 handle = ACPI_ROOT_OBJECT; 841 842 buf.Pointer = ¶m; 843 buf.Length = sizeof(param); 844 845 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 846 if (ACPI_SUCCESS(rv)) 847 *valp = param.Integer.Value; 848 849 return rv; 850} 851 852/* 853 * acpi_eval_string: 854 * 855 * Evaluate a (Unicode) string object. 856 */ 857ACPI_STATUS 858acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 859{ 860 ACPI_STATUS rv; 861 ACPI_BUFFER buf; 862 863 if (handle == NULL) 864 handle = ACPI_ROOT_OBJECT; 865 866 buf.Pointer = NULL; 867 buf.Length = ACPI_ALLOCATE_BUFFER; 868 869 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 870 if (ACPI_SUCCESS(rv)) { 871 ACPI_OBJECT *param = buf.Pointer; 872 const char *ptr = param->String.Pointer; 873 size_t len = param->String.Length; 874 if ((*stringp = AcpiOsAllocate(len)) == NULL) 875 rv = AE_NO_MEMORY; 876 else 877 (void)memcpy(*stringp, ptr, len); 878 AcpiOsFree(param); 879 } 880 881 return rv; 882} 883 884 885/* 886 * acpi_eval_struct: 887 * 888 * Evaluate a more complex structure. 889 * Caller must free buf.Pointer by AcpiOsFree(). 890 */ 891ACPI_STATUS 892acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 893{ 894 ACPI_STATUS rv; 895 896 if (handle == NULL) 897 handle = ACPI_ROOT_OBJECT; 898 899 bufp->Pointer = NULL; 900 bufp->Length = ACPI_ALLOCATE_BUFFER; 901 902 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 903 904 return rv; 905} 906 907/* 908 * acpi_foreach_package_object: 909 * 910 * Iterate over all objects in a in a packages and pass then all 911 * to a function. If the called function returns non AE_OK, the 912 * iteration is stopped and that value is returned. 913 */ 914 915ACPI_STATUS 916acpi_foreach_package_object(ACPI_OBJECT *pkg, 917 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 918 void *arg) 919{ 920 ACPI_STATUS rv = AE_OK; 921 int i; 922 923 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 924 return AE_BAD_PARAMETER; 925 926 for (i = 0; i < pkg->Package.Count; i++) { 927 rv = (*func)(&pkg->Package.Elements[i], arg); 928 if (ACPI_FAILURE(rv)) 929 break; 930 } 931 932 return rv; 933} 934 935const char * 936acpi_name(ACPI_HANDLE handle) 937{ 938 static char buffer[80]; 939 ACPI_BUFFER buf; 940 ACPI_STATUS rv; 941 942 buf.Length = sizeof(buffer); 943 buf.Pointer = buffer; 944 945 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 946 if (ACPI_FAILURE(rv)) 947 return "(unknown acpi path)"; 948 return buffer; 949} 950 951/* 952 * acpi_get: 953 * 954 * Fetch data info the specified (empty) ACPI buffer. 955 * Caller must free buf.Pointer by AcpiOsFree(). 956 */ 957ACPI_STATUS 958acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 959 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 960{ 961 buf->Pointer = NULL; 962 buf->Length = ACPI_ALLOCATE_BUFFER; 963 964 return (*getit)(handle, buf); 965} 966 967 968/* 969 * acpi_match_hid 970 * 971 * Match given ids against _HID and _CIDs 972 */ 973int 974acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 975{ 976 int i; 977 978 while (*ids) { 979 if (ad->Valid & ACPI_VALID_HID) { 980 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 981 return 1; 982 } 983 984 if (ad->Valid & ACPI_VALID_CID) { 985 for (i = 0; i < ad->CompatibilityId.Count; i++) { 986 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 987 return 1; 988 } 989 } 990 ids++; 991 } 992 993 return 0; 994} 995 996/* 997 * acpi_set_wake_gpe 998 * 999 * Set GPE as both Runtime and Wake 1000 */ 1001void 1002acpi_set_wake_gpe(ACPI_HANDLE handle) 1003{ 1004 ACPI_BUFFER buf; 1005 ACPI_STATUS rv; 1006 ACPI_OBJECT *p, *elt; 1007 1008 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1009 if (ACPI_FAILURE(rv)) 1010 return; /* just ignore */ 1011 1012 p = buf.Pointer; 1013 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1014 goto out; /* just ignore */ 1015 1016 elt = p->Package.Elements; 1017 1018 /* TBD: package support */ 1019 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1020 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1021 1022 out: 1023 AcpiOsFree(buf.Pointer); 1024} 1025 1026 1027/***************************************************************************** 1028 * ACPI sleep support. 1029 *****************************************************************************/ 1030 1031static int 1032is_available_state(struct acpi_softc *sc, int state) 1033{ 1034 UINT8 type_a, type_b; 1035 1036 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1037 &type_a, &type_b)); 1038} 1039 1040/* 1041 * acpi_enter_sleep_state: 1042 * 1043 * enter to the specified sleep state. 1044 */ 1045 1046ACPI_STATUS 1047acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1048{ 1049 int s; 1050 ACPI_STATUS ret = AE_OK; 1051 1052 switch (state) { 1053 case ACPI_STATE_S0: 1054 break; 1055 case ACPI_STATE_S1: 1056 case ACPI_STATE_S2: 1057 case ACPI_STATE_S3: 1058 case ACPI_STATE_S4: 1059 if (!is_available_state(sc, state)) { 1060 printf("acpi: cannot enter the sleep state (%d).\n", 1061 state); 1062 break; 1063 } 1064 ret = AcpiEnterSleepStatePrep(state); 1065 if (ACPI_FAILURE(ret)) { 1066 printf("acpi: failed preparing to sleep (%s)\n", 1067 AcpiFormatException(ret)); 1068 break; 1069 } 1070 if (state==ACPI_STATE_S1) { 1071 /* just enter the state */ 1072 acpi_md_OsDisableInterrupt(); 1073 AcpiEnterSleepState((UINT8)state); 1074 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 1075 } else { 1076 /* XXX: powerhooks(9) framework is too poor to 1077 * support ACPI sleep state... 1078 */ 1079 dopowerhooks(PWR_SOFTSUSPEND); 1080 s = splhigh(); 1081 dopowerhooks(PWR_SUSPEND); 1082 acpi_md_sleep(state); 1083 dopowerhooks(PWR_RESUME); 1084 splx(s); 1085 dopowerhooks(PWR_SOFTRESUME); 1086 if (state==ACPI_STATE_S4) 1087 AcpiEnable(); 1088 } 1089 AcpiLeaveSleepState((UINT8)state); 1090 break; 1091 case ACPI_STATE_S5: 1092 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1093 if (ACPI_FAILURE(ret)) { 1094 printf("acpi: failed preparing to sleep (%s)\n", 1095 AcpiFormatException(ret)); 1096 break; 1097 } 1098 acpi_md_OsDisableInterrupt(); 1099 AcpiEnterSleepState(ACPI_STATE_S5); 1100 printf("WARNING: powerdown failed!\n"); 1101 break; 1102 } 1103 1104 return ret; 1105} 1106 1107#ifdef PCI_INTR_FIXUP 1108ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 1109/* 1110 * acpi_pci_fixup: 1111 * 1112 * Set up PCI devices that BIOS didn't handle right. 1113 * Iterate through all devices and try to get the _PTR 1114 * (PCI Routing Table). If it exists then make sure all 1115 * interrupt links that it uses are working. 1116 */ 1117void 1118acpi_pci_fixup(struct acpi_softc *sc) 1119{ 1120 ACPI_HANDLE parent; 1121 ACPI_STATUS rv; 1122 1123#ifdef ACPI_DEBUG 1124 printf("acpi_pci_fixup starts:\n"); 1125#endif 1126 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent); 1127 if (ACPI_FAILURE(rv)) 1128 return; 1129 sc->sc_pci_bus = 0; 1130 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1131 acpi_pci_fixup_bus, sc, NULL); 1132} 1133 1134static uint 1135acpi_get_intr(ACPI_HANDLE handle) 1136{ 1137 ACPI_BUFFER ret; 1138 ACPI_STATUS rv; 1139 ACPI_RESOURCE *res; 1140 ACPI_RESOURCE_IRQ *irq; 1141 uint intr; 1142 1143 intr = -1; 1144 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1145 if (ACPI_FAILURE(rv)) 1146 return intr; 1147 for (res = ret.Pointer; res->Type != ACPI_RESOURCE_TYPE_END_TAG; 1148 res = ACPI_NEXT_RESOURCE(res)) { 1149 if (res->Type == ACPI_RESOURCE_TYPE_IRQ) { 1150 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1151 if (irq->InterruptCount == 1) 1152 intr = irq->Interrupts[0]; 1153 break; 1154 } 1155 } 1156 AcpiOsFree(ret.Pointer); 1157 return intr; 1158} 1159 1160static void 1161acpi_pci_set_line(int bus, int dev, int pin, int line) 1162{ 1163 ACPI_STATUS err; 1164 ACPI_PCI_ID pid; 1165 UINT32 intr, id, bhlc; 1166 int func, nfunc; 1167 1168 pid.Bus = bus; 1169 pid.Device = dev; 1170 pid.Function = 0; 1171 1172 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1173 if (err) 1174 return; 1175 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1176 nfunc = 8; 1177 else 1178 nfunc = 1; 1179 1180 for (func = 0; func < nfunc; func++) { 1181 pid.Function = func; 1182 1183 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1184 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1185 PCI_VENDOR(id) == 0) 1186 continue; 1187 1188 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1189 &intr, 32); 1190 if (err) { 1191 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1192 return; 1193 } 1194 if (pin == PCI_INTERRUPT_PIN(intr) && 1195 line != PCI_INTERRUPT_LINE(intr)) { 1196#ifdef ACPI_DEBUG 1197 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1198 bus, dev, func, 1199 pin + '@', PCI_INTERRUPT_LINE(intr), 1200 line); 1201#endif 1202 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1203 PCI_INTERRUPT_LINE_SHIFT); 1204 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1205 err = AcpiOsWritePciConfiguration(&pid, 1206 PCI_INTERRUPT_REG, intr, 32); 1207 if (err) { 1208 printf("AcpiOsWritePciConfiguration failed" 1209 " %d\n", err); 1210 return; 1211 } 1212 } 1213 } 1214} 1215 1216ACPI_STATUS 1217acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1218 void **status) 1219{ 1220 struct acpi_softc *sc = context; 1221 ACPI_STATUS rv; 1222 ACPI_BUFFER buf; 1223 UINT8 *Buffer; 1224 ACPI_PCI_ROUTING_TABLE *PrtElement; 1225 ACPI_HANDLE link; 1226 uint line; 1227 ACPI_INTEGER val; 1228 1229 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1230 if (ACPI_FAILURE(rv)) 1231 return AE_OK; 1232 1233 /* 1234 * If at level 1, this is a PCI root bus. Try the _BBN method 1235 * to get the right PCI bus numbering for the following 1236 * busses (this is a depth-first walk). It may fail, 1237 * for example if there's only one root bus, but that 1238 * case should be ok, so we'll ignore that. 1239 */ 1240 if (level == 1) { 1241 rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val); 1242 if (!ACPI_FAILURE(rv)) { 1243#ifdef ACPI_DEBUG 1244 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1245 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1246 ACPI_LOWORD(val)); 1247#endif 1248 sc->sc_pci_bus = ACPI_LOWORD(val); 1249 } 1250 } 1251 1252 1253#ifdef ACPI_DEBUG 1254 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1255 sc->sc_pci_bus, level); 1256#endif 1257 1258 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1259 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1260 if (PrtElement->Length == 0) 1261 break; 1262 if (PrtElement->Source[0] == 0) 1263 continue; 1264 1265 rv = AcpiGetHandle(NULL, PrtElement->Source, &link); 1266 if (ACPI_FAILURE(rv)) 1267 continue; 1268 line = acpi_get_intr(link); 1269 if (line == (uint)-1 || line == 0) { 1270 printf("%s: fixing up intr link %s\n", 1271 sc->sc_dev.dv_xname, PrtElement->Source); 1272 rv = acpi_allocate_resources(link); 1273 if (ACPI_FAILURE(rv)) { 1274 printf("%s: interrupt allocation failed %s\n", 1275 sc->sc_dev.dv_xname, PrtElement->Source); 1276 continue; 1277 } 1278 line = acpi_get_intr(link); 1279 if (line == (uint)-1) { 1280 printf("%s: get intr failed %s\n", 1281 sc->sc_dev.dv_xname, PrtElement->Source); 1282 continue; 1283 } 1284 } 1285 1286 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1287 PrtElement->Pin + 1, line); 1288 } 1289 1290 sc->sc_pci_bus++; 1291 1292 AcpiOsFree(buf.Pointer); 1293 return AE_OK; 1294} 1295#endif /* PCI_INTR_FIXUP */ 1296 1297#if defined(PCI_INTR_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1298/* XXX This very incomplete */ 1299static ACPI_STATUS 1300acpi_allocate_resources(ACPI_HANDLE handle) 1301{ 1302 ACPI_BUFFER bufp, bufc, bufn; 1303 ACPI_RESOURCE *resp, *resc, *resn; 1304 ACPI_RESOURCE_IRQ *irq; 1305 ACPI_STATUS rv; 1306 uint delta; 1307 1308 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1309 if (ACPI_FAILURE(rv)) 1310 goto out; 1311 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1312 if (ACPI_FAILURE(rv)) { 1313 goto out1; 1314 } 1315 1316 bufn.Length = 1000; 1317 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1318 resp = bufp.Pointer; 1319 resc = bufc.Pointer; 1320 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1321 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1322 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1323 resp = ACPI_NEXT_RESOURCE(resp); 1324 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1325 break; 1326 /* Found identical Id */ 1327 resn->Type = resc->Type; 1328 switch (resc->Type) { 1329 case ACPI_RESOURCE_TYPE_IRQ: 1330 memcpy(&resn->Data, &resp->Data, 1331 sizeof(ACPI_RESOURCE_IRQ)); 1332 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1333 irq->Interrupts[0] = 1334 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1335 Interrupts[irq->InterruptCount-1]; 1336 irq->InterruptCount = 1; 1337 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1338 break; 1339 case ACPI_RESOURCE_TYPE_IO: 1340 memcpy(&resn->Data, &resp->Data, 1341 sizeof(ACPI_RESOURCE_IO)); 1342 resn->Length = resp->Length; 1343 break; 1344 default: 1345 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1346 rv = AE_BAD_DATA; 1347 goto out2; 1348 } 1349 resc = ACPI_NEXT_RESOURCE(resc); 1350 resn = ACPI_NEXT_RESOURCE(resn); 1351 resp = ACPI_NEXT_RESOURCE(resp); 1352 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1353 if (delta >= 1354 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1355 bufn.Length *= 2; 1356 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1357 M_ACPI, M_WAITOK); 1358 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1359 } 1360 } 1361 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1362 printf("acpi_allocate_resources: resc not exhausted\n"); 1363 rv = AE_BAD_DATA; 1364 goto out3; 1365 } 1366 1367 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1368 rv = AcpiSetCurrentResources(handle, &bufn); 1369 if (ACPI_FAILURE(rv)) { 1370 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1371 AcpiFormatException(rv)); 1372 } 1373 1374out3: 1375 free(bufn.Pointer, M_ACPI); 1376out2: 1377 AcpiOsFree(bufc.Pointer); 1378out1: 1379 AcpiOsFree(bufp.Pointer); 1380out: 1381 return rv; 1382} 1383#endif /* PCI_INTR_FIXUP || ACPI_ACTIVATE_DEV */ 1384 1385SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1386{ 1387 const struct sysctlnode *node; 1388 const struct sysctlnode *ssnode; 1389 1390 if (sysctl_createv(clog, 0, NULL, NULL, 1391 CTLFLAG_PERMANENT, 1392 CTLTYPE_NODE, "hw", NULL, 1393 NULL, 0, NULL, 0, 1394 CTL_HW, CTL_EOL) != 0) 1395 return; 1396 1397 if (sysctl_createv(clog, 0, NULL, &node, 1398 CTLFLAG_PERMANENT, 1399 CTLTYPE_NODE, "acpi", NULL, 1400 NULL, 0, NULL, 0, 1401 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1402 return; 1403 1404 acpi_node = node->sysctl_num; 1405 1406 /* ACPI sleepstate sysctl */ 1407 if (sysctl_createv(NULL, 0, NULL, &node, 1408 CTLFLAG_PERMANENT, 1409 CTLTYPE_NODE, "machdep", NULL, 1410 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1411 return; 1412 if (sysctl_createv(NULL, 0, &node, &ssnode, 1413 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1414 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1415 CTL_EOL) != 0) 1416 return; 1417} 1418 1419static int 1420sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1421{ 1422 int error, t; 1423 struct sysctlnode node; 1424 1425 node = *rnode; 1426 t = acpi_sleepstate; 1427 node.sysctl_data = &t; 1428 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1429 if (error || newp == NULL) 1430 return error; 1431 1432 if (t < ACPI_STATE_S0 || t > ACPI_STATE_S5) 1433 return EINVAL; 1434 1435 if (acpi_softc != NULL && acpi_sleepstate != t) { 1436 acpi_sleepstate = t; 1437 aprint_normal("acpi0: entering state %d\n", t); 1438 acpi_enter_sleep_state(acpi_softc, t); 1439 aprint_normal("acpi0: resuming\n"); 1440 t = acpi_sleepstate = ACPI_STATE_S0; 1441 } 1442 1443 return 0; 1444} 1445