acpi.c revision 1.107
1/* $NetBSD: acpi.c,v 1.107 2007/12/15 02:19:55 jmcneill 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 1.107 2007/12/15 02:19:55 jmcneill 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(struct device *, struct cfdata *, void *); 128static void acpi_attach(struct device *, struct device *, void *); 129 130static int acpi_print(void *aux, const char *); 131 132static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 133 134extern struct cfdriver acpi_cd; 135 136CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 137 acpi_match, acpi_attach, NULL, NULL); 138 139/* 140 * This is a flag we set when the ACPI subsystem is active. Machine 141 * dependent code may wish to skip other steps (such as attaching 142 * subsystems that ACPI supercedes) when ACPI is active. 143 */ 144int acpi_active; 145int acpi_force_load; 146 147/* 148 * Pointer to the ACPI subsystem's state. There can be only 149 * one ACPI instance. 150 */ 151struct acpi_softc *acpi_softc; 152 153/* 154 * Locking stuff. 155 */ 156static kmutex_t acpi_slock; 157static int acpi_locked; 158extern kmutex_t acpi_interrupt_list_mtx; 159 160/* 161 * sysctl-related information 162 */ 163 164static int acpi_node = CTL_EOL; 165static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 166static int acpi_sleepstate = ACPI_STATE_S0; 167 168/* 169 * Prototypes. 170 */ 171static void acpi_shutdown(void *); 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 *); 176 177/* 178 * acpi_probe: 179 * 180 * Probe for ACPI support. This is called by the 181 * machine-dependent ACPI front-end. All of the 182 * actual work is done by ACPICA. 183 * 184 * NOTE: This is not an autoconfiguration interface function. 185 */ 186int 187acpi_probe(void) 188{ 189 static int beenhere; 190 ACPI_TABLE_HEADER xsdt; 191 ACPI_STATUS rv; 192 193 if (beenhere != 0) 194 panic("acpi_probe: ACPI has already been probed"); 195 beenhere = 1; 196 197 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 198 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 199 acpi_locked = 0; 200 201 /* 202 * Start up ACPICA. 203 */ 204#ifdef ACPI_DEBUGGER 205 if (acpi_dbgr & ACPI_DBGR_INIT) 206 acpi_osd_debugger(); 207#endif 208 209 AcpiGbl_AllMethodsSerialized = FALSE; 210 AcpiGbl_EnableInterpreterSlack = TRUE; 211 212 rv = AcpiInitializeSubsystem(); 213 if (ACPI_FAILURE(rv)) { 214 printf("ACPI: unable to initialize ACPICA: %s\n", 215 AcpiFormatException(rv)); 216 return 0; 217 } 218 219 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 220 if (ACPI_FAILURE(rv)) { 221 printf("ACPI: unable to initialize ACPI tables: %s\n", 222 AcpiFormatException(rv)); 223 return 0; 224 } 225 226 rv = AcpiReallocateRootTable(); 227 if (ACPI_FAILURE(rv)) { 228 printf("ACPI: unable to reallocate root table: %s\n", 229 AcpiFormatException(rv)); 230 return 0; 231 } 232 233#ifdef ACPI_DEBUGGER 234 if (acpi_dbgr & ACPI_DBGR_TABLES) 235 acpi_osd_debugger(); 236#endif 237 238 rv = AcpiLoadTables(); 239 if (ACPI_FAILURE(rv)) { 240 printf("ACPI: unable to load tables: %s\n", 241 AcpiFormatException(rv)); 242 return 0; 243 } 244 245 if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_XSDT, 0, &xsdt))) 246 memset(&xsdt, 0, sizeof(xsdt)); 247 248 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 249 printf("ACPI: BIOS implementation in listed as broken:\n"); 250 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 251 "AslId <%4.4s,%08x>\n", 252 xsdt.OemId, xsdt.OemTableId, 253 xsdt.OemRevision, 254 xsdt.AslCompilerId, 255 xsdt.AslCompilerRevision); 256 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 257 return 0; 258 } 259 260#if notyet 261 /* Install the default address space handlers. */ 262 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 263 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 264 if (ACPI_FAILURE(rv)) { 265 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 266 AcpiFormatException(rv)); 267 return 0; 268 } 269 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 270 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 271 if (ACPI_FAILURE(rv)) { 272 printf("ACPI: unable to initialise SystemIO handler: %s\n", 273 AcpiFormatException(rv)); 274 return 0; 275 } 276 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 277 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 278 if (ACPI_FAILURE(rv)) { 279 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 280 AcpiFormatException(rv)); 281 return 0; 282 } 283#endif 284 285 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 286 if (ACPI_FAILURE(rv)) { 287 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 288 return 0; 289 } 290 291 /* 292 * Looks like we have ACPI! 293 */ 294 295 return 1; 296} 297 298static int 299acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 300{ 301 struct cfattach *ca; 302 303 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 304 return (ca == &acpi_ca); 305} 306 307int 308acpi_check(device_t parent, const char *ifattr) 309{ 310 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 311} 312 313ACPI_PHYSICAL_ADDRESS 314acpi_OsGetRootPointer(void) 315{ 316 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 317 318 /* 319 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 320 * 321 * IA-64: Use the EFI. 322 * 323 * We let MD code handle this since there are multiple 324 * ways to do it. 325 */ 326 327 PhysicalAddress = acpi_md_OsGetRootPointer(); 328 329 if (acpi_root_pointer == 0) 330 acpi_root_pointer = PhysicalAddress; 331 332 return PhysicalAddress; 333} 334 335/* 336 * acpi_match: 337 * 338 * Autoconfiguration `match' routine. 339 */ 340static int 341acpi_match(struct device *parent, struct cfdata *match, 342 void *aux) 343{ 344 /* 345 * XXX Check other locators? Hard to know -- machine 346 * dependent code has already checked for the presence 347 * of ACPI by calling acpi_probe(), so I suppose we 348 * don't really have to do anything else. 349 */ 350 return 1; 351} 352 353/* 354 * acpi_attach: 355 * 356 * Autoconfiguration `attach' routine. Finish initializing 357 * ACPICA (some initialization was done in acpi_probe(), 358 * which was required to check for the presence of ACPI), 359 * and enable the ACPI subsystem. 360 */ 361static void 362acpi_attach(struct device *parent, struct device *self, void *aux) 363{ 364 struct acpi_softc *sc = (void *) self; 365 struct acpibus_attach_args *aa = aux; 366 ACPI_STATUS rv; 367 ACPI_TABLE_HEADER xsdt; 368 369 aprint_naive(": Advanced Configuration and Power Interface\n"); 370 aprint_normal(": Advanced Configuration and Power Interface\n"); 371 372 if (acpi_softc != NULL) 373 panic("acpi_attach: ACPI has already been attached"); 374 375 sysmon_power_settype("acpi"); 376 377 aprint_verbose("%s: using Intel ACPI CA subsystem version %08x\n", 378 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 379 380 if (ACPI_FAILURE(AcpiGetTableHeader(ACPI_SIG_XSDT, 0, &xsdt))) 381 memset(&xsdt, 0, sizeof(xsdt)); 382 383 aprint_verbose("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 384 sc->sc_dev.dv_xname, 385 xsdt.OemId, xsdt.OemTableId, 386 xsdt.OemRevision, 387 xsdt.AslCompilerId, xsdt.AslCompilerRevision); 388 389 sc->sc_quirks = acpi_find_quirks(); 390 391 sc->sc_iot = aa->aa_iot; 392 sc->sc_memt = aa->aa_memt; 393 sc->sc_pc = aa->aa_pc; 394 sc->sc_pciflags = aa->aa_pciflags; 395 sc->sc_ic = aa->aa_ic; 396 397 acpi_softc = sc; 398 399 /* 400 * Register null power management handler 401 */ 402 if (!pmf_device_register(self, NULL, NULL)) 403 aprint_error_dev(self, "couldn't establish power handler\n"); 404 405 /* 406 * Bring ACPI on-line. 407 */ 408#ifdef ACPI_DEBUGGER 409 if (acpi_dbgr & ACPI_DBGR_ENABLE) 410 acpi_osd_debugger(); 411#endif 412 413#define ACPI_ENABLE_PHASE1 \ 414 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 415#define ACPI_ENABLE_PHASE2 \ 416 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 417 ACPI_NO_ADDRESS_SPACE_INIT) 418 419 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 420 if (ACPI_FAILURE(rv)) { 421 aprint_error("%s: unable to enable ACPI: %s\n", 422 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 423 return; 424 } 425 426 acpi_md_callback(); 427 428 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 429 if (ACPI_FAILURE(rv)) { 430 aprint_error("%s: unable to enable ACPI: %s\n", 431 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 432 return; 433 } 434 435 /* early EC handler initialization if ECDT table is available */ 436 config_found_ia(&sc->sc_dev, "acpiecdtbus", NULL, NULL); 437 438 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 439 if (ACPI_FAILURE(rv)) { 440 aprint_error("%s: unable to initialize ACPI objects: %s\n", 441 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 442 return; 443 } 444 acpi_active = 1; 445 446 /* Our current state is "awake". */ 447 sc->sc_sleepstate = ACPI_STATE_S0; 448 449 /* Show SCI interrupt. */ 450 aprint_verbose("%s: SCI interrupting at int %d\n", 451 sc->sc_dev.dv_xname, AcpiGbl_FADT.SciInterrupt); 452 453 /* 454 * Check for fixed-hardware features. 455 */ 456 acpi_enable_fixed_events(sc); 457 acpitimer_init(); 458 459 /* 460 * Scan the namespace and build our device tree. 461 */ 462#ifdef ACPI_DEBUGGER 463 if (acpi_dbgr & ACPI_DBGR_PROBE) 464 acpi_osd_debugger(); 465#endif 466 acpi_build_tree(sc); 467 468 if (acpi_root_pointer != 0 && acpi_node != CTL_EOL) { 469 (void)sysctl_createv(NULL, 0, NULL, NULL, 470 CTLFLAG_IMMEDIATE, 471 CTLTYPE_QUAD, "root", NULL, NULL, 472 acpi_root_pointer, NULL, 0, 473 CTL_HW, acpi_node, CTL_CREATE, CTL_EOL); 474 } 475 476 477 /* 478 * Register a shutdown hook that disables certain ACPI 479 * events that might happen and confuse us while we're 480 * trying to shut down. 481 */ 482 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 483 if (sc->sc_sdhook == NULL) 484 aprint_error("%s: WARNING: unable to register shutdown hook\n", 485 sc->sc_dev.dv_xname); 486 487#ifdef ACPI_DEBUGGER 488 if (acpi_dbgr & ACPI_DBGR_RUNNING) 489 acpi_osd_debugger(); 490#endif 491} 492 493/* 494 * acpi_shutdown: 495 * 496 * Shutdown hook for ACPI -- disable some events that 497 * might confuse us. 498 */ 499static void 500acpi_shutdown(void *arg) 501{ 502 /* nothing */ 503} 504 505#if 0 506/* 507 * acpi_disable: 508 * 509 * Disable ACPI. 510 */ 511static ACPI_STATUS 512acpi_disable(struct acpi_softc *sc) 513{ 514 ACPI_STATUS rv = AE_OK; 515 516 if (acpi_active) { 517 rv = AcpiDisable(); 518 if (ACPI_SUCCESS(rv)) 519 acpi_active = 0; 520 } 521 return rv; 522} 523#endif 524 525struct acpi_make_devnode_state { 526 struct acpi_softc *softc; 527 struct acpi_scope *scope; 528}; 529 530/* 531 * acpi_build_tree: 532 * 533 * Scan relevant portions of the ACPI namespace and attach 534 * child devices. 535 */ 536static void 537acpi_build_tree(struct acpi_softc *sc) 538{ 539 static const char *scopes[] = { 540 "\\_PR_", /* ACPI 1.0 processor namespace */ 541 "\\_SB_", /* system bus namespace */ 542 "\\_SI_", /* system indicator namespace */ 543 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 544 NULL, 545 }; 546 struct acpi_attach_args aa; 547 struct acpi_make_devnode_state state; 548 struct acpi_scope *as; 549 struct acpi_devnode *ad; 550 ACPI_HANDLE parent; 551 ACPI_STATUS rv; 552 int i; 553 554 TAILQ_INIT(&sc->sc_scopes); 555 556 state.softc = sc; 557 558 /* 559 * Scan the namespace and build our tree. 560 */ 561 for (i = 0; scopes[i] != NULL; i++) { 562 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 563 as->as_name = scopes[i]; 564 TAILQ_INIT(&as->as_devnodes); 565 566 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 567 568 state.scope = as; 569 570 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 571 &parent); 572 if (ACPI_SUCCESS(rv)) { 573 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 574 acpi_make_devnode, &state, NULL); 575 } 576 577 /* Now, for this namespace, try and attach the devices. */ 578 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 579 aa.aa_node = ad; 580 aa.aa_iot = sc->sc_iot; 581 aa.aa_memt = sc->sc_memt; 582 aa.aa_pc = sc->sc_pc; 583 aa.aa_pciflags = sc->sc_pciflags; 584 aa.aa_ic = sc->sc_ic; 585 586 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 587 /* 588 * XXX We only attach devices which are: 589 * 590 * - present 591 * - enabled 592 * - functioning properly 593 * 594 * However, if enabled, it's decoding resources, 595 * so we should claim them, if possible. 596 * Requires changes to bus_space(9). 597 */ 598 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 599 ACPI_VALID_STA && 600 (ad->ad_devinfo->CurrentStatus & 601 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 602 ACPI_STA_DEV_OK)) != 603 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 604 ACPI_STA_DEV_OK)) 605 continue; 606 } 607 608 /* 609 * XXX Same problem as above... 610 * 611 * Do this check only for devices, as e.g. 612 * a Thermal Zone doesn't have a HID. 613 */ 614 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 615 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 616 continue; 617 618 ad->ad_device = config_found_ia(&sc->sc_dev, 619 "acpinodebus", &aa, acpi_print); 620 } 621 } 622 config_found_ia(&sc->sc_dev, "acpiapmbus", NULL, NULL); 623} 624 625#ifdef ACPI_ACTIVATE_DEV 626static void 627acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 628{ 629 ACPI_STATUS rv; 630 ACPI_BUFFER buf; 631 632 buf.Pointer = NULL; 633 buf.Length = ACPI_ALLOCATE_BUFFER; 634 635#ifdef ACPI_DEBUG 636 aprint_normal("acpi_activate_device: %s, old status=%x\n", 637 (*di)->HardwareId.Value, (*di)->CurrentStatus); 638#endif 639 640 rv = acpi_allocate_resources(handle); 641 if (ACPI_FAILURE(rv)) { 642 aprint_error("acpi: activate failed for %s\n", 643 (*di)->HardwareId.Value); 644 } else { 645 aprint_verbose("acpi: activated %s\n", 646 (*di)->HardwareId.Value); 647 } 648 649 (void)AcpiGetObjectInfo(handle, &buf); 650 AcpiOsFree(*di); 651 *di = buf.Pointer; 652 653#ifdef ACPI_DEBUG 654 aprint_normal("acpi_activate_device: %s, new status=%x\n", 655 (*di)->HardwareId.Value, (*di)->CurrentStatus); 656#endif 657} 658#endif /* ACPI_ACTIVATE_DEV */ 659 660/* 661 * acpi_make_devnode: 662 * 663 * Make an ACPI devnode. 664 */ 665static ACPI_STATUS 666acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 667 void **status) 668{ 669 struct acpi_make_devnode_state *state = context; 670#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 671 struct acpi_softc *sc = state->softc; 672#endif 673 struct acpi_scope *as = state->scope; 674 struct acpi_devnode *ad; 675 ACPI_OBJECT_TYPE type; 676 ACPI_BUFFER buf; 677 ACPI_DEVICE_INFO *devinfo; 678 ACPI_STATUS rv; 679 ACPI_NAME_UNION *anu; 680 int i, clear = 0; 681 682 rv = AcpiGetType(handle, &type); 683 if (ACPI_SUCCESS(rv)) { 684 buf.Pointer = NULL; 685 buf.Length = ACPI_ALLOCATE_BUFFER; 686 rv = AcpiGetObjectInfo(handle, &buf); 687 if (ACPI_FAILURE(rv)) { 688#ifdef ACPI_DEBUG 689 aprint_normal("%s: AcpiGetObjectInfo failed: %s\n", 690 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 691#endif 692 goto out; /* XXX why return OK */ 693 } 694 695 devinfo = buf.Pointer; 696 697 switch (type) { 698 case ACPI_TYPE_DEVICE: 699#ifdef ACPI_ACTIVATE_DEV 700 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 701 (ACPI_VALID_STA|ACPI_VALID_HID) && 702 (devinfo->CurrentStatus & 703 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 704 ACPI_STA_DEV_PRESENT) 705 acpi_activate_device(handle, &devinfo); 706 707 /* FALLTHROUGH */ 708#endif 709 710 case ACPI_TYPE_PROCESSOR: 711 case ACPI_TYPE_THERMAL: 712 case ACPI_TYPE_POWER: 713 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 714 if (ad == NULL) 715 return AE_NO_MEMORY; 716 717 ad->ad_devinfo = devinfo; 718 ad->ad_handle = handle; 719 ad->ad_level = level; 720 ad->ad_scope = as; 721 ad->ad_type = type; 722 723 anu = (ACPI_NAME_UNION *)&devinfo->Name; 724 ad->ad_name[4] = '\0'; 725 for (i = 3, clear = 0; i >= 0; i--) { 726 if (!clear && anu->Ascii[i] == '_') 727 ad->ad_name[i] = '\0'; 728 else { 729 ad->ad_name[i] = anu->Ascii[i]; 730 clear = 1; 731 } 732 } 733 if (ad->ad_name[0] == '\0') 734 ad->ad_name[0] = '_'; 735 736 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 737 738 if (type == ACPI_TYPE_DEVICE && 739 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 740 goto out; 741 742#ifdef ACPI_EXTRA_DEBUG 743 aprint_normal("%s: HID %s found in scope %s level %d\n", 744 sc->sc_dev.dv_xname, 745 ad->ad_devinfo->HardwareId.Value, 746 as->as_name, ad->ad_level); 747 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 748 aprint_normal(" UID %s\n", 749 ad->ad_devinfo->UniqueId.Value); 750 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 751 aprint_normal(" ADR 0x%016qx\n", 752 ad->ad_devinfo->Address); 753 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 754 aprint_normal(" STA 0x%08x\n", 755 ad->ad_devinfo->CurrentStatus); 756#endif 757 } 758 } 759 out: 760 return AE_OK; 761} 762 763/* 764 * acpi_print: 765 * 766 * Autoconfiguration print routine for ACPI node bus. 767 */ 768static int 769acpi_print(void *aux, const char *pnp) 770{ 771 struct acpi_attach_args *aa = aux; 772 ACPI_STATUS rv; 773 774 if (pnp) { 775 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 776 char *pnpstr = 777 aa->aa_node->ad_devinfo->HardwareId.Value; 778 char *str; 779 780 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 781 pnpstr); 782 rv = acpi_eval_string(aa->aa_node->ad_handle, 783 "_STR", &str); 784 if (ACPI_SUCCESS(rv)) { 785 aprint_normal("[%s] ", str); 786 AcpiOsFree(str); 787 } 788#ifdef ACPIVERBOSE 789 else { 790 int i; 791 792 for (i = 0; i < sizeof(acpi_knowndevs) / 793 sizeof(acpi_knowndevs[0]); i++) { 794 if (strcmp(acpi_knowndevs[i].pnp, 795 pnpstr) == 0) { 796 aprint_normal("[%s] ", 797 acpi_knowndevs[i].str); 798 } 799 } 800 } 801 802#endif 803 aprint_normal("at %s", pnp); 804 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 805 aprint_normal("%s (ACPI Object Type '%s' " 806 "[0x%02x]) ", aa->aa_node->ad_name, 807 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 808 aa->aa_node->ad_devinfo->Type); 809 aprint_normal("at %s", pnp); 810 } else 811 return 0; 812 } else { 813 aprint_normal(" (%s", aa->aa_node->ad_name); 814 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 815 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.Value); 816 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 817 const char *uid; 818 819 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 820 if (uid[0] == '\0') 821 uid = "<null>"; 822 aprint_normal("-%s", uid); 823 } 824 } 825 aprint_normal(")"); 826 } 827 828 return UNCONF; 829} 830 831/***************************************************************************** 832 * ACPI fixed-hardware feature handlers 833 *****************************************************************************/ 834 835static UINT32 acpi_fixed_button_handler(void *); 836static void acpi_fixed_button_pressed(void *); 837 838/* 839 * acpi_enable_fixed_events: 840 * 841 * Enable any fixed-hardware feature handlers. 842 */ 843static void 844acpi_enable_fixed_events(struct acpi_softc *sc) 845{ 846 static int beenhere; 847 ACPI_STATUS rv; 848 849 KASSERT(beenhere == 0); 850 beenhere = 1; 851 852 /* 853 * Check for fixed-hardware buttons. 854 */ 855 856 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 857 aprint_verbose("%s: fixed-feature power button present\n", 858 sc->sc_dev.dv_xname); 859 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 860 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 861 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 862 aprint_error("%s: unable to register fixed power " 863 "button with sysmon\n", sc->sc_dev.dv_xname); 864 } else { 865 rv = AcpiInstallFixedEventHandler( 866 ACPI_EVENT_POWER_BUTTON, 867 acpi_fixed_button_handler, &sc->sc_smpsw_power); 868 if (ACPI_FAILURE(rv)) { 869 aprint_error("%s: unable to install handler " 870 "for fixed power button: %s\n", 871 sc->sc_dev.dv_xname, 872 AcpiFormatException(rv)); 873 } 874 } 875 } 876 877 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 878 aprint_verbose("%s: fixed-feature sleep button present\n", 879 sc->sc_dev.dv_xname); 880 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 881 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 882 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 883 aprint_error("%s: unable to register fixed sleep " 884 "button with sysmon\n", sc->sc_dev.dv_xname); 885 } else { 886 rv = AcpiInstallFixedEventHandler( 887 ACPI_EVENT_SLEEP_BUTTON, 888 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 889 if (ACPI_FAILURE(rv)) { 890 aprint_error("%s: unable to install handler " 891 "for fixed sleep button: %s\n", 892 sc->sc_dev.dv_xname, 893 AcpiFormatException(rv)); 894 } 895 } 896 } 897} 898 899/* 900 * acpi_fixed_button_handler: 901 * 902 * Event handler for the fixed buttons. 903 */ 904static UINT32 905acpi_fixed_button_handler(void *context) 906{ 907 struct sysmon_pswitch *smpsw = context; 908 int rv; 909 910#ifdef ACPI_BUT_DEBUG 911 printf("%s: fixed button handler\n", smpsw->smpsw_name); 912#endif 913 914 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 915 acpi_fixed_button_pressed, smpsw); 916 if (ACPI_FAILURE(rv)) 917 printf("%s: WARNING: unable to queue fixed button pressed " 918 "callback: %s\n", smpsw->smpsw_name, 919 AcpiFormatException(rv)); 920 921 return ACPI_INTERRUPT_HANDLED; 922} 923 924/* 925 * acpi_fixed_button_pressed: 926 * 927 * Deal with a fixed button being pressed. 928 */ 929static void 930acpi_fixed_button_pressed(void *context) 931{ 932 struct sysmon_pswitch *smpsw = context; 933 934#ifdef ACPI_BUT_DEBUG 935 printf("%s: fixed button pressed, calling sysmon\n", 936 smpsw->smpsw_name); 937#endif 938 939 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 940} 941 942/***************************************************************************** 943 * ACPI utility routines. 944 *****************************************************************************/ 945 946/* 947 * acpi_eval_integer: 948 * 949 * Evaluate an integer object. 950 */ 951ACPI_STATUS 952acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 953{ 954 ACPI_STATUS rv; 955 ACPI_BUFFER buf; 956 ACPI_OBJECT param; 957 958 if (handle == NULL) 959 handle = ACPI_ROOT_OBJECT; 960 961 buf.Pointer = ¶m; 962 buf.Length = sizeof(param); 963 964 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 965 if (ACPI_SUCCESS(rv)) 966 *valp = param.Integer.Value; 967 968 return rv; 969} 970 971/* 972 * acpi_eval_string: 973 * 974 * Evaluate a (Unicode) string object. 975 */ 976ACPI_STATUS 977acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 978{ 979 ACPI_STATUS rv; 980 ACPI_BUFFER buf; 981 982 if (handle == NULL) 983 handle = ACPI_ROOT_OBJECT; 984 985 buf.Pointer = NULL; 986 buf.Length = ACPI_ALLOCATE_BUFFER; 987 988 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 989 if (ACPI_SUCCESS(rv)) { 990 ACPI_OBJECT *param = buf.Pointer; 991 const char *ptr = param->String.Pointer; 992 size_t len = param->String.Length; 993 if ((*stringp = AcpiOsAllocate(len)) == NULL) 994 rv = AE_NO_MEMORY; 995 else 996 (void)memcpy(*stringp, ptr, len); 997 AcpiOsFree(param); 998 } 999 1000 return rv; 1001} 1002 1003 1004/* 1005 * acpi_eval_struct: 1006 * 1007 * Evaluate a more complex structure. 1008 * Caller must free buf.Pointer by AcpiOsFree(). 1009 */ 1010ACPI_STATUS 1011acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1012{ 1013 ACPI_STATUS rv; 1014 1015 if (handle == NULL) 1016 handle = ACPI_ROOT_OBJECT; 1017 1018 bufp->Pointer = NULL; 1019 bufp->Length = ACPI_ALLOCATE_BUFFER; 1020 1021 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1022 1023 return rv; 1024} 1025 1026/* 1027 * acpi_foreach_package_object: 1028 * 1029 * Iterate over all objects in a in a packages and pass then all 1030 * to a function. If the called function returns non AE_OK, the 1031 * iteration is stopped and that value is returned. 1032 */ 1033 1034ACPI_STATUS 1035acpi_foreach_package_object(ACPI_OBJECT *pkg, 1036 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1037 void *arg) 1038{ 1039 ACPI_STATUS rv = AE_OK; 1040 int i; 1041 1042 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1043 return AE_BAD_PARAMETER; 1044 1045 for (i = 0; i < pkg->Package.Count; i++) { 1046 rv = (*func)(&pkg->Package.Elements[i], arg); 1047 if (ACPI_FAILURE(rv)) 1048 break; 1049 } 1050 1051 return rv; 1052} 1053 1054const char * 1055acpi_name(ACPI_HANDLE handle) 1056{ 1057 static char buffer[80]; 1058 ACPI_BUFFER buf; 1059 ACPI_STATUS rv; 1060 1061 buf.Length = sizeof(buffer); 1062 buf.Pointer = buffer; 1063 1064 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1065 if (ACPI_FAILURE(rv)) 1066 return "(unknown acpi path)"; 1067 return buffer; 1068} 1069 1070/* 1071 * acpi_get: 1072 * 1073 * Fetch data info the specified (empty) ACPI buffer. 1074 * Caller must free buf.Pointer by AcpiOsFree(). 1075 */ 1076ACPI_STATUS 1077acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1078 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1079{ 1080 buf->Pointer = NULL; 1081 buf->Length = ACPI_ALLOCATE_BUFFER; 1082 1083 return (*getit)(handle, buf); 1084} 1085 1086 1087/* 1088 * acpi_match_hid 1089 * 1090 * Match given ids against _HID and _CIDs 1091 */ 1092int 1093acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1094{ 1095 int i; 1096 1097 while (*ids) { 1098 if (ad->Valid & ACPI_VALID_HID) { 1099 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 1100 return 1; 1101 } 1102 1103 if (ad->Valid & ACPI_VALID_CID) { 1104 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1105 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1106 return 1; 1107 } 1108 } 1109 ids++; 1110 } 1111 1112 return 0; 1113} 1114 1115/* 1116 * acpi_set_wake_gpe 1117 * 1118 * Set GPE as both Runtime and Wake 1119 */ 1120void 1121acpi_set_wake_gpe(ACPI_HANDLE handle) 1122{ 1123 ACPI_BUFFER buf; 1124 ACPI_STATUS rv; 1125 ACPI_OBJECT *p, *elt; 1126 1127 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1128 if (ACPI_FAILURE(rv)) 1129 return; /* just ignore */ 1130 1131 p = buf.Pointer; 1132 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1133 goto out; /* just ignore */ 1134 1135 elt = p->Package.Elements; 1136 1137 /* TBD: package support */ 1138 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1139 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1140 1141 out: 1142 AcpiOsFree(buf.Pointer); 1143} 1144 1145 1146/***************************************************************************** 1147 * ACPI sleep support. 1148 *****************************************************************************/ 1149 1150static int 1151is_available_state(struct acpi_softc *sc, int state) 1152{ 1153 UINT8 type_a, type_b; 1154 1155 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1156 &type_a, &type_b)); 1157} 1158 1159/* 1160 * acpi_enter_sleep_state: 1161 * 1162 * enter to the specified sleep state. 1163 */ 1164 1165ACPI_STATUS 1166acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1167{ 1168 int err; 1169 ACPI_STATUS ret = AE_OK; 1170 1171 if (state == acpi_sleepstate) 1172 return AE_OK; 1173 1174 aprint_normal("%s: entering state %d\n", sc->sc_dev.dv_xname, state); 1175 1176 switch (state) { 1177 case ACPI_STATE_S0: 1178 break; 1179 case ACPI_STATE_S1: 1180 case ACPI_STATE_S2: 1181 case ACPI_STATE_S3: 1182 case ACPI_STATE_S4: 1183 if (!is_available_state(sc, state)) { 1184 aprint_error("%s: cannot enter the sleep state (%d)\n", 1185 sc->sc_dev.dv_xname, state); 1186 break; 1187 } 1188 1189 if (state != ACPI_STATE_S1 && !pmf_system_suspend()) { 1190 aprint_error_dev(&sc->sc_dev, "aborting suspend\n"); 1191 break; 1192 } 1193 1194 ret = AcpiEnterSleepStatePrep(state); 1195 if (ACPI_FAILURE(ret)) { 1196 aprint_error("%s: failed preparing to sleep (%s)\n", 1197 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1198 break; 1199 } 1200 1201 acpi_sleepstate = state; 1202 if (state == ACPI_STATE_S1) { 1203 /* just enter the state */ 1204 acpi_md_OsDisableInterrupt(); 1205 AcpiEnterSleepState((UINT8)state); 1206 AcpiLeaveSleepState((UINT8)state); 1207 } else { 1208 err = acpi_md_sleep(state); 1209 if (state == ACPI_STATE_S4) 1210 AcpiEnable(); 1211 pmf_system_bus_resume(); 1212 AcpiLeaveSleepState((UINT8)state); 1213 pmf_system_resume(); 1214 } 1215 1216 break; 1217 case ACPI_STATE_S5: 1218 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1219 if (ACPI_FAILURE(ret)) { 1220 aprint_error("%s: failed preparing to sleep (%s)\n", 1221 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1222 break; 1223 } 1224 DELAY(1000000); 1225 acpi_sleepstate = state; 1226 acpi_md_OsDisableInterrupt(); 1227 AcpiEnterSleepState(ACPI_STATE_S5); 1228 aprint_error("%s: WARNING powerdown failed!\n", 1229 sc->sc_dev.dv_xname); 1230 break; 1231 } 1232 1233 acpi_sleepstate = ACPI_STATE_S0; 1234 return ret; 1235} 1236 1237#if defined(ACPI_ACTIVATE_DEV) 1238/* XXX This very incomplete */ 1239ACPI_STATUS 1240acpi_allocate_resources(ACPI_HANDLE handle) 1241{ 1242 ACPI_BUFFER bufp, bufc, bufn; 1243 ACPI_RESOURCE *resp, *resc, *resn; 1244 ACPI_RESOURCE_IRQ *irq; 1245 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1246 ACPI_STATUS rv; 1247 uint delta; 1248 1249 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1250 if (ACPI_FAILURE(rv)) 1251 goto out; 1252 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1253 if (ACPI_FAILURE(rv)) { 1254 goto out1; 1255 } 1256 1257 bufn.Length = 1000; 1258 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1259 resp = bufp.Pointer; 1260 resc = bufc.Pointer; 1261 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1262 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1263 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1264 resp = ACPI_NEXT_RESOURCE(resp); 1265 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1266 break; 1267 /* Found identical Id */ 1268 resn->Type = resc->Type; 1269 switch (resc->Type) { 1270 case ACPI_RESOURCE_TYPE_IRQ: 1271 memcpy(&resn->Data, &resp->Data, 1272 sizeof(ACPI_RESOURCE_IRQ)); 1273 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1274 irq->Interrupts[0] = 1275 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1276 Interrupts[irq->InterruptCount-1]; 1277 irq->InterruptCount = 1; 1278 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1279 break; 1280 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1281 memcpy(&resn->Data, &resp->Data, 1282 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1283 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1284#if 0 1285 /* 1286 * XXX not duplicating the interrupt logic above 1287 * because its not clear what it accomplishes. 1288 */ 1289 xirq->Interrupts[0] = 1290 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1291 Interrupts[irq->NumberOfInterrupts-1]; 1292 xirq->NumberOfInterrupts = 1; 1293#endif 1294 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1295 break; 1296 case ACPI_RESOURCE_TYPE_IO: 1297 memcpy(&resn->Data, &resp->Data, 1298 sizeof(ACPI_RESOURCE_IO)); 1299 resn->Length = resp->Length; 1300 break; 1301 default: 1302 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1303 rv = AE_BAD_DATA; 1304 goto out2; 1305 } 1306 resc = ACPI_NEXT_RESOURCE(resc); 1307 resn = ACPI_NEXT_RESOURCE(resn); 1308 resp = ACPI_NEXT_RESOURCE(resp); 1309 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1310 if (delta >= 1311 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1312 bufn.Length *= 2; 1313 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1314 M_ACPI, M_WAITOK); 1315 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1316 } 1317 } 1318 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1319 printf("acpi_allocate_resources: resc not exhausted\n"); 1320 rv = AE_BAD_DATA; 1321 goto out3; 1322 } 1323 1324 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1325 rv = AcpiSetCurrentResources(handle, &bufn); 1326 if (ACPI_FAILURE(rv)) { 1327 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1328 AcpiFormatException(rv)); 1329 } 1330 1331out3: 1332 free(bufn.Pointer, M_ACPI); 1333out2: 1334 AcpiOsFree(bufc.Pointer); 1335out1: 1336 AcpiOsFree(bufp.Pointer); 1337out: 1338 return rv; 1339} 1340#endif /* ACPI_ACTIVATE_DEV */ 1341 1342SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1343{ 1344 const struct sysctlnode *node; 1345 const struct sysctlnode *ssnode; 1346 1347 if (sysctl_createv(clog, 0, NULL, NULL, 1348 CTLFLAG_PERMANENT, 1349 CTLTYPE_NODE, "hw", NULL, 1350 NULL, 0, NULL, 0, 1351 CTL_HW, CTL_EOL) != 0) 1352 return; 1353 1354 if (sysctl_createv(clog, 0, NULL, &node, 1355 CTLFLAG_PERMANENT, 1356 CTLTYPE_NODE, "acpi", NULL, 1357 NULL, 0, NULL, 0, 1358 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1359 return; 1360 1361 acpi_node = node->sysctl_num; 1362 1363 /* ACPI sleepstate sysctl */ 1364 if (sysctl_createv(NULL, 0, NULL, &node, 1365 CTLFLAG_PERMANENT, 1366 CTLTYPE_NODE, "machdep", NULL, 1367 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1368 return; 1369 if (sysctl_createv(NULL, 0, &node, &ssnode, 1370 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1371 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1372 CTL_EOL) != 0) 1373 return; 1374} 1375 1376static int 1377sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1378{ 1379 int error, t; 1380 struct sysctlnode node; 1381 1382 node = *rnode; 1383 t = acpi_sleepstate; 1384 node.sysctl_data = &t; 1385 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1386 if (error || newp == NULL) 1387 return error; 1388 1389 if (acpi_softc == NULL) 1390 return ENOSYS; 1391 1392 acpi_enter_sleep_state(acpi_softc, t); 1393 1394 return 0; 1395} 1396