acpi.c revision 1.123
1/* $NetBSD: acpi.c,v 1.123 2009/01/30 12:51:03 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32/* 33 * Copyright 2001, 2003 Wasabi Systems, Inc. 34 * All rights reserved. 35 * 36 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed for the NetBSD Project by 49 * Wasabi Systems, Inc. 50 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 51 * or promote products derived from this software without specific prior 52 * written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 56 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 57 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 58 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 59 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 60 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 61 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 62 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 63 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 64 * POSSIBILITY OF SUCH DAMAGE. 65 */ 66 67/* 68 * Autoconfiguration support for the Intel ACPI Component Architecture 69 * ACPI reference implementation. 70 */ 71 72#include <sys/cdefs.h> 73__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.123 2009/01/30 12:51:03 jmcneill Exp $"); 74 75#include "opt_acpi.h" 76#include "opt_pcifixup.h" 77 78#include <sys/param.h> 79#include <sys/systm.h> 80#include <sys/device.h> 81#include <sys/malloc.h> 82#include <sys/mutex.h> 83#include <sys/kernel.h> 84#include <sys/proc.h> 85#include <sys/sysctl.h> 86 87#include <dev/acpi/acpica.h> 88#include <dev/acpi/acpireg.h> 89#include <dev/acpi/acpivar.h> 90#include <dev/acpi/acpi_osd.h> 91#include <dev/acpi/acpi_timer.h> 92#ifdef ACPIVERBOSE 93#include <dev/acpi/acpidevs_data.h> 94#endif 95 96#if defined(ACPI_PCI_FIXUP) 97#error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 98#endif 99 100#ifdef PCI_INTR_FIXUP_DISABLED 101#include <dev/pci/pcidevs.h> 102#endif 103 104MALLOC_DECLARE(M_ACPI); 105 106#include <machine/acpi_machdep.h> 107 108#ifdef ACPI_DEBUGGER 109#define ACPI_DBGR_INIT 0x01 110#define ACPI_DBGR_TABLES 0x02 111#define ACPI_DBGR_ENABLE 0x04 112#define ACPI_DBGR_PROBE 0x08 113#define ACPI_DBGR_RUNNING 0x10 114 115static int acpi_dbgr = 0x00; 116#endif 117 118static ACPI_TABLE_DESC acpi_initial_tables[128]; 119 120static int acpi_match(device_t, struct cfdata *, void *); 121static void acpi_attach(device_t, device_t, void *); 122static void acpi_childdet(device_t, device_t); 123 124static int acpi_print(void *aux, const char *); 125 126static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 127 128extern struct cfdriver acpi_cd; 129 130CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 131 acpi_match, acpi_attach, NULL, NULL, NULL, acpi_childdet); 132 133/* 134 * This is a flag we set when the ACPI subsystem is active. Machine 135 * dependent code may wish to skip other steps (such as attaching 136 * subsystems that ACPI supercedes) when ACPI is active. 137 */ 138int acpi_active; 139int acpi_force_load; 140int acpi_suspended = 0; 141 142/* 143 * Pointer to the ACPI subsystem's state. There can be only 144 * one ACPI instance. 145 */ 146struct acpi_softc *acpi_softc; 147 148/* 149 * Locking stuff. 150 */ 151static kmutex_t acpi_slock; 152static int acpi_locked; 153extern kmutex_t acpi_interrupt_list_mtx; 154 155/* 156 * Ignored HIDs 157 */ 158static const char * const acpi_ignored_ids[] = { 159#if defined(i386) || defined(x86_64) 160 "PNP0000", /* AT interrupt controller is handled internally */ 161 "PNP0200", /* AT DMA controller is handled internally */ 162 "PNP0A??", /* Busses aren't enumerated with ACPI yet */ 163 "PNP0B00", /* AT RTC is handled internally */ 164 "PNP0C01", /* No "System Board" driver */ 165 "PNP0C02", /* No "PnP motherboard register resources" driver */ 166 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 167#endif 168#if defined(x86_64) 169 "PNP0C04", /* FPU is handled internally */ 170#endif 171 NULL 172}; 173 174/* 175 * sysctl-related information 176 */ 177 178static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 179static int acpi_sleepstate = ACPI_STATE_S0; 180static char acpi_supported_states[3 * 6 + 1] = ""; 181 182/* 183 * Prototypes. 184 */ 185static void acpi_build_tree(struct acpi_softc *); 186static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 187 188static void acpi_enable_fixed_events(struct acpi_softc *); 189 190static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 191static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 192static int is_available_state(struct acpi_softc *, int); 193 194static bool acpi_suspend(device_t PMF_FN_PROTO); 195static bool acpi_resume(device_t PMF_FN_PROTO); 196 197/* 198 * acpi_probe: 199 * 200 * Probe for ACPI support. This is called by the 201 * machine-dependent ACPI front-end. All of the 202 * actual work is done by ACPICA. 203 * 204 * NOTE: This is not an autoconfiguration interface function. 205 */ 206int 207acpi_probe(void) 208{ 209 static int beenhere; 210 ACPI_TABLE_HEADER *rsdt; 211 ACPI_STATUS rv; 212 213 if (beenhere != 0) 214 panic("acpi_probe: ACPI has already been probed"); 215 beenhere = 1; 216 217 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 218 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 219 acpi_locked = 0; 220 221 /* 222 * Start up ACPICA. 223 */ 224#ifdef ACPI_DEBUGGER 225 if (acpi_dbgr & ACPI_DBGR_INIT) 226 acpi_osd_debugger(); 227#endif 228 229 AcpiGbl_AllMethodsSerialized = FALSE; 230 AcpiGbl_EnableInterpreterSlack = TRUE; 231 232 rv = AcpiInitializeSubsystem(); 233 if (ACPI_FAILURE(rv)) { 234 printf("ACPI: unable to initialize ACPICA: %s\n", 235 AcpiFormatException(rv)); 236 return 0; 237 } 238 239 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 240 if (ACPI_FAILURE(rv)) { 241 printf("ACPI: unable to initialize ACPI tables: %s\n", 242 AcpiFormatException(rv)); 243 return 0; 244 } 245 246 rv = AcpiReallocateRootTable(); 247 if (ACPI_FAILURE(rv)) { 248 printf("ACPI: unable to reallocate root table: %s\n", 249 AcpiFormatException(rv)); 250 return 0; 251 } 252 253#ifdef ACPI_DEBUGGER 254 if (acpi_dbgr & ACPI_DBGR_TABLES) 255 acpi_osd_debugger(); 256#endif 257 258 rv = AcpiLoadTables(); 259 if (ACPI_FAILURE(rv)) { 260 printf("ACPI: unable to load tables: %s\n", 261 AcpiFormatException(rv)); 262 return 0; 263 } 264 265 rsdt = acpi_map_rsdt(); 266 if (rsdt == NULL) { 267 printf("ACPI: unable to map RSDT\n"); 268 return 0; 269 } 270 271 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 272 printf("ACPI: BIOS implementation in listed as broken:\n"); 273 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 274 "AslId <%4.4s,%08x>\n", 275 rsdt->OemId, rsdt->OemTableId, 276 rsdt->OemRevision, 277 rsdt->AslCompilerId, 278 rsdt->AslCompilerRevision); 279 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 280 acpi_unmap_rsdt(rsdt); 281 return 0; 282 } 283 284 acpi_unmap_rsdt(rsdt); 285 286#if notyet 287 /* Install the default address space handlers. */ 288 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 289 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 290 if (ACPI_FAILURE(rv)) { 291 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 292 AcpiFormatException(rv)); 293 return 0; 294 } 295 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 296 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 297 if (ACPI_FAILURE(rv)) { 298 printf("ACPI: unable to initialise SystemIO handler: %s\n", 299 AcpiFormatException(rv)); 300 return 0; 301 } 302 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 303 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 304 if (ACPI_FAILURE(rv)) { 305 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 306 AcpiFormatException(rv)); 307 return 0; 308 } 309#endif 310 311 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 312 if (ACPI_FAILURE(rv)) { 313 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 314 return 0; 315 } 316 317 /* 318 * Looks like we have ACPI! 319 */ 320 321 return 1; 322} 323 324static int 325acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 326{ 327 struct cfattach *ca; 328 329 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 330 return (ca == &acpi_ca); 331} 332 333int 334acpi_check(device_t parent, const char *ifattr) 335{ 336 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 337} 338 339ACPI_PHYSICAL_ADDRESS 340acpi_OsGetRootPointer(void) 341{ 342 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 343 344 /* 345 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 346 * 347 * IA-64: Use the EFI. 348 * 349 * We let MD code handle this since there are multiple 350 * ways to do it. 351 */ 352 353 PhysicalAddress = acpi_md_OsGetRootPointer(); 354 355 if (acpi_root_pointer == 0) 356 acpi_root_pointer = PhysicalAddress; 357 358 return PhysicalAddress; 359} 360 361/* 362 * acpi_match: 363 * 364 * Autoconfiguration `match' routine. 365 */ 366static int 367acpi_match(device_t parent, struct cfdata *match, void *aux) 368{ 369 /* 370 * XXX Check other locators? Hard to know -- machine 371 * dependent code has already checked for the presence 372 * of ACPI by calling acpi_probe(), so I suppose we 373 * don't really have to do anything else. 374 */ 375 return 1; 376} 377 378/* Remove references to child devices. 379 * 380 * XXX Need to reclaim any resources? 381 */ 382static void 383acpi_childdet(device_t self, device_t child) 384{ 385 struct acpi_softc *sc = device_private(self); 386 struct acpi_scope *as; 387 struct acpi_devnode *ad; 388 389 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 390 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 391 if (ad->ad_device == child) 392 ad->ad_device = NULL; 393 } 394 } 395} 396 397/* 398 * acpi_attach: 399 * 400 * Autoconfiguration `attach' routine. Finish initializing 401 * ACPICA (some initialization was done in acpi_probe(), 402 * which was required to check for the presence of ACPI), 403 * and enable the ACPI subsystem. 404 */ 405static void 406acpi_attach(device_t parent, device_t self, void *aux) 407{ 408 struct acpi_softc *sc = device_private(self); 409 struct acpibus_attach_args *aa = aux; 410 ACPI_STATUS rv; 411 ACPI_TABLE_HEADER *rsdt; 412 413 aprint_naive("\n"); 414 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 415 416 if (acpi_softc != NULL) 417 panic("acpi_attach: ACPI has already been attached"); 418 419 sysmon_power_settype("acpi"); 420 421 rsdt = acpi_map_rsdt(); 422 if (rsdt) { 423 aprint_verbose_dev( 424 self, 425 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 426 rsdt->OemId, rsdt->OemTableId, 427 rsdt->OemRevision, 428 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 429 } else 430 aprint_error_dev(self, "X/RSDT: Not found\n"); 431 acpi_unmap_rsdt(rsdt); 432 433 sc->sc_dev = self; 434 sc->sc_quirks = acpi_find_quirks(); 435 436 sc->sc_iot = aa->aa_iot; 437 sc->sc_memt = aa->aa_memt; 438 sc->sc_pc = aa->aa_pc; 439 sc->sc_pciflags = aa->aa_pciflags; 440 sc->sc_ic = aa->aa_ic; 441 442 acpi_softc = sc; 443 444 /* 445 * Register null power management handler 446 */ 447 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 448 aprint_error_dev(self, "couldn't establish power handler\n"); 449 450 /* 451 * Bring ACPI on-line. 452 */ 453#ifdef ACPI_DEBUGGER 454 if (acpi_dbgr & ACPI_DBGR_ENABLE) 455 acpi_osd_debugger(); 456#endif 457 458#define ACPI_ENABLE_PHASE1 \ 459 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 460#define ACPI_ENABLE_PHASE2 \ 461 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 462 ACPI_NO_ADDRESS_SPACE_INIT) 463 464 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 465 if (ACPI_FAILURE(rv)) { 466 aprint_error_dev(self, "unable to enable ACPI: %s\n", 467 AcpiFormatException(rv)); 468 return; 469 } 470 471 acpi_md_callback(); 472 473 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 474 if (ACPI_FAILURE(rv)) { 475 aprint_error_dev(self, "unable to enable ACPI: %s\n", 476 AcpiFormatException(rv)); 477 return; 478 } 479 480 /* early EC handler initialization if ECDT table is available */ 481 config_found_ia(self, "acpiecdtbus", NULL, NULL); 482 483 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 484 if (ACPI_FAILURE(rv)) { 485 aprint_error_dev(self, 486 "unable to initialize ACPI objects: %s\n", 487 AcpiFormatException(rv)); 488 return; 489 } 490 acpi_active = 1; 491 492 /* Our current state is "awake". */ 493 sc->sc_sleepstate = ACPI_STATE_S0; 494 495 /* Show SCI interrupt. */ 496 aprint_verbose_dev(self, "SCI interrupting at int %d\n", 497 AcpiGbl_FADT.SciInterrupt); 498 499 /* 500 * Check for fixed-hardware features. 501 */ 502 acpi_enable_fixed_events(sc); 503 acpitimer_init(); 504 505 /* 506 * Scan the namespace and build our device tree. 507 */ 508#ifdef ACPI_DEBUGGER 509 if (acpi_dbgr & ACPI_DBGR_PROBE) 510 acpi_osd_debugger(); 511#endif 512 acpi_build_tree(sc); 513 514 sprintf(acpi_supported_states, "%s%s%s%s%s%s", 515 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 516 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 517 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 518 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 519 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 520 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 521 522#ifdef ACPI_DEBUGGER 523 if (acpi_dbgr & ACPI_DBGR_RUNNING) 524 acpi_osd_debugger(); 525#endif 526} 527 528static bool 529acpi_suspend(device_t dv PMF_FN_ARGS) 530{ 531 acpi_suspended = 1; 532 return true; 533} 534 535static bool 536acpi_resume(device_t dv PMF_FN_ARGS) 537{ 538 acpi_suspended = 0; 539 return true; 540} 541 542#if 0 543/* 544 * acpi_disable: 545 * 546 * Disable ACPI. 547 */ 548static ACPI_STATUS 549acpi_disable(struct acpi_softc *sc) 550{ 551 ACPI_STATUS rv = AE_OK; 552 553 if (acpi_active) { 554 rv = AcpiDisable(); 555 if (ACPI_SUCCESS(rv)) 556 acpi_active = 0; 557 } 558 return rv; 559} 560#endif 561 562struct acpi_make_devnode_state { 563 struct acpi_softc *softc; 564 struct acpi_scope *scope; 565}; 566 567/* 568 * acpi_build_tree: 569 * 570 * Scan relevant portions of the ACPI namespace and attach 571 * child devices. 572 */ 573static void 574acpi_build_tree(struct acpi_softc *sc) 575{ 576 static const char *scopes[] = { 577 "\\_PR_", /* ACPI 1.0 processor namespace */ 578 "\\_SB_", /* system bus namespace */ 579 "\\_SI_", /* system indicator namespace */ 580 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 581 NULL, 582 }; 583 struct acpi_attach_args aa; 584 struct acpi_make_devnode_state state; 585 struct acpi_scope *as; 586 struct acpi_devnode *ad; 587 ACPI_HANDLE parent; 588 ACPI_STATUS rv; 589 int i; 590 591 TAILQ_INIT(&sc->sc_scopes); 592 593 state.softc = sc; 594 595 /* 596 * Scan the namespace and build our tree. 597 */ 598 for (i = 0; scopes[i] != NULL; i++) { 599 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 600 as->as_name = scopes[i]; 601 TAILQ_INIT(&as->as_devnodes); 602 603 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 604 605 state.scope = as; 606 607 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 608 &parent); 609 if (ACPI_SUCCESS(rv)) { 610 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 611 acpi_make_devnode, &state, NULL); 612 } 613 614 /* Now, for this namespace, try and attach the devices. */ 615 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 616 aa.aa_node = ad; 617 aa.aa_iot = sc->sc_iot; 618 aa.aa_memt = sc->sc_memt; 619 aa.aa_pc = sc->sc_pc; 620 aa.aa_pciflags = sc->sc_pciflags; 621 aa.aa_ic = sc->sc_ic; 622 623 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 624 /* 625 * XXX We only attach devices which are: 626 * 627 * - present 628 * - enabled 629 * - functioning properly 630 * 631 * However, if enabled, it's decoding resources, 632 * so we should claim them, if possible. 633 * Requires changes to bus_space(9). 634 */ 635 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 636 ACPI_VALID_STA && 637 (ad->ad_devinfo->CurrentStatus & 638 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 639 ACPI_STA_DEV_OK)) != 640 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 641 ACPI_STA_DEV_OK)) 642 continue; 643 } 644 645 /* 646 * XXX Same problem as above... 647 * 648 * Do this check only for devices, as e.g. 649 * a Thermal Zone doesn't have a HID. 650 */ 651 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 652 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 653 continue; 654 655 /* 656 * Handled internally 657 */ 658 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 659 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 660 continue; 661 662 /* 663 * Skip ignored HIDs 664 */ 665 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 666 continue; 667 668 ad->ad_device = config_found_ia(sc->sc_dev, 669 "acpinodebus", &aa, acpi_print); 670 } 671 } 672 config_found_ia(sc->sc_dev, "acpiapmbus", NULL, NULL); 673} 674 675#ifdef ACPI_ACTIVATE_DEV 676static void 677acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 678{ 679 ACPI_STATUS rv; 680 ACPI_BUFFER buf; 681 682 buf.Pointer = NULL; 683 buf.Length = ACPI_ALLOCATE_BUFFER; 684 685#ifdef ACPI_DEBUG 686 aprint_normal("acpi_activate_device: %s, old status=%x\n", 687 (*di)->HardwareId.Value, (*di)->CurrentStatus); 688#endif 689 690 rv = acpi_allocate_resources(handle); 691 if (ACPI_FAILURE(rv)) { 692 aprint_error("acpi: activate failed for %s\n", 693 (*di)->HardwareId.Value); 694 } else { 695 aprint_verbose("acpi: activated %s\n", 696 (*di)->HardwareId.Value); 697 } 698 699 (void)AcpiGetObjectInfo(handle, &buf); 700 AcpiOsFree(*di); 701 *di = buf.Pointer; 702 703#ifdef ACPI_DEBUG 704 aprint_normal("acpi_activate_device: %s, new status=%x\n", 705 (*di)->HardwareId.Value, (*di)->CurrentStatus); 706#endif 707} 708#endif /* ACPI_ACTIVATE_DEV */ 709 710/* 711 * acpi_make_devnode: 712 * 713 * Make an ACPI devnode. 714 */ 715static ACPI_STATUS 716acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 717 void **status) 718{ 719 struct acpi_make_devnode_state *state = context; 720#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 721 struct acpi_softc *sc = state->softc; 722#endif 723 struct acpi_scope *as = state->scope; 724 struct acpi_devnode *ad; 725 ACPI_OBJECT_TYPE type; 726 ACPI_BUFFER buf; 727 ACPI_DEVICE_INFO *devinfo; 728 ACPI_STATUS rv; 729 ACPI_NAME_UNION *anu; 730 int i, clear = 0; 731 732 rv = AcpiGetType(handle, &type); 733 if (ACPI_SUCCESS(rv)) { 734 buf.Pointer = NULL; 735 buf.Length = ACPI_ALLOCATE_BUFFER; 736 rv = AcpiGetObjectInfo(handle, &buf); 737 if (ACPI_FAILURE(rv)) { 738#ifdef ACPI_DEBUG 739 aprint_normal_dev(sc->sc_dev, 740 "AcpiGetObjectInfo failed: %s\n", 741 AcpiFormatException(rv)); 742#endif 743 goto out; /* XXX why return OK */ 744 } 745 746 devinfo = buf.Pointer; 747 748 switch (type) { 749 case ACPI_TYPE_DEVICE: 750#ifdef ACPI_ACTIVATE_DEV 751 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 752 (ACPI_VALID_STA|ACPI_VALID_HID) && 753 (devinfo->CurrentStatus & 754 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 755 ACPI_STA_DEV_PRESENT) 756 acpi_activate_device(handle, &devinfo); 757 758 /* FALLTHROUGH */ 759#endif 760 761 case ACPI_TYPE_PROCESSOR: 762 case ACPI_TYPE_THERMAL: 763 case ACPI_TYPE_POWER: 764 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 765 if (ad == NULL) 766 return AE_NO_MEMORY; 767 768 ad->ad_devinfo = devinfo; 769 ad->ad_handle = handle; 770 ad->ad_level = level; 771 ad->ad_scope = as; 772 ad->ad_type = type; 773 774 anu = (ACPI_NAME_UNION *)&devinfo->Name; 775 ad->ad_name[4] = '\0'; 776 for (i = 3, clear = 0; i >= 0; i--) { 777 if (!clear && anu->Ascii[i] == '_') 778 ad->ad_name[i] = '\0'; 779 else { 780 ad->ad_name[i] = anu->Ascii[i]; 781 clear = 1; 782 } 783 } 784 if (ad->ad_name[0] == '\0') 785 ad->ad_name[0] = '_'; 786 787 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 788 789 if (type == ACPI_TYPE_DEVICE && 790 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 791 goto out; 792 793#ifdef ACPI_EXTRA_DEBUG 794 aprint_normal_dev(sc->sc_dev, 795 "HID %s found in scope %s level %d\n", 796 ad->ad_devinfo->HardwareId.Value, 797 as->as_name, ad->ad_level); 798 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 799 aprint_normal(" UID %s\n", 800 ad->ad_devinfo->UniqueId.Value); 801 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 802 aprint_normal(" ADR 0x%016" PRIx64 "\n", 803 ad->ad_devinfo->Address); 804 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 805 aprint_normal(" STA 0x%08x\n", 806 ad->ad_devinfo->CurrentStatus); 807#endif 808 } 809 } 810 out: 811 return AE_OK; 812} 813 814/* 815 * acpi_print: 816 * 817 * Autoconfiguration print routine for ACPI node bus. 818 */ 819static int 820acpi_print(void *aux, const char *pnp) 821{ 822 struct acpi_attach_args *aa = aux; 823 ACPI_STATUS rv; 824 825 if (pnp) { 826 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 827 char *pnpstr = 828 aa->aa_node->ad_devinfo->HardwareId.Value; 829 ACPI_BUFFER buf; 830 831 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 832 pnpstr); 833 834 buf.Pointer = NULL; 835 buf.Length = ACPI_ALLOCATE_BUFFER; 836 rv = AcpiEvaluateObject(aa->aa_node->ad_handle, 837 "_STR", NULL, &buf); 838 if (ACPI_SUCCESS(rv)) { 839 ACPI_OBJECT *obj = buf.Pointer; 840 switch (obj->Type) { 841 case ACPI_TYPE_STRING: 842 aprint_normal("[%s] ", obj->String.Pointer); 843 break; 844 case ACPI_TYPE_BUFFER: 845 aprint_normal("buffer %p ", obj->Buffer.Pointer); 846 break; 847 default: 848 aprint_normal("type %d ",obj->Type); 849 break; 850 } 851 AcpiOsFree(buf.Pointer); 852 } 853#ifdef ACPIVERBOSE 854 else { 855 int i; 856 857 for (i = 0; i < sizeof(acpi_knowndevs) / 858 sizeof(acpi_knowndevs[0]); i++) { 859 if (strcmp(acpi_knowndevs[i].pnp, 860 pnpstr) == 0) { 861 aprint_normal("[%s] ", 862 acpi_knowndevs[i].str); 863 } 864 } 865 } 866 867#endif 868 aprint_normal("at %s", pnp); 869 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 870 aprint_normal("%s (ACPI Object Type '%s' " 871 "[0x%02x]) ", aa->aa_node->ad_name, 872 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 873 aa->aa_node->ad_devinfo->Type); 874 aprint_normal("at %s", pnp); 875 } else 876 return 0; 877 } else { 878 aprint_normal(" (%s", aa->aa_node->ad_name); 879 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 880 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.Value); 881 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 882 const char *uid; 883 884 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 885 if (uid[0] == '\0') 886 uid = "<null>"; 887 aprint_normal("-%s", uid); 888 } 889 } 890 aprint_normal(")"); 891 } 892 893 return UNCONF; 894} 895 896/***************************************************************************** 897 * ACPI fixed-hardware feature handlers 898 *****************************************************************************/ 899 900static UINT32 acpi_fixed_button_handler(void *); 901static void acpi_fixed_button_pressed(void *); 902 903/* 904 * acpi_enable_fixed_events: 905 * 906 * Enable any fixed-hardware feature handlers. 907 */ 908static void 909acpi_enable_fixed_events(struct acpi_softc *sc) 910{ 911 static int beenhere; 912 ACPI_STATUS rv; 913 914 KASSERT(beenhere == 0); 915 beenhere = 1; 916 917 /* 918 * Check for fixed-hardware buttons. 919 */ 920 921 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 922 aprint_verbose_dev(sc->sc_dev, 923 "fixed-feature power button present\n"); 924 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 925 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 926 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 927 aprint_error_dev(sc->sc_dev, 928 "unable to register fixed power " 929 "button with sysmon\n"); 930 } else { 931 rv = AcpiInstallFixedEventHandler( 932 ACPI_EVENT_POWER_BUTTON, 933 acpi_fixed_button_handler, &sc->sc_smpsw_power); 934 if (ACPI_FAILURE(rv)) { 935 aprint_error_dev(sc->sc_dev, 936 "unable to install handler " 937 "for fixed power button: %s\n", 938 AcpiFormatException(rv)); 939 } 940 } 941 } 942 943 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 944 aprint_verbose_dev(sc->sc_dev, 945 "fixed-feature sleep button present\n"); 946 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 947 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 948 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 949 aprint_error_dev(sc->sc_dev, 950 "unable to register fixed sleep " 951 "button with sysmon\n"); 952 } else { 953 rv = AcpiInstallFixedEventHandler( 954 ACPI_EVENT_SLEEP_BUTTON, 955 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 956 if (ACPI_FAILURE(rv)) { 957 aprint_error_dev(sc->sc_dev, 958 "unable to install handler " 959 "for fixed sleep button: %s\n", 960 AcpiFormatException(rv)); 961 } 962 } 963 } 964} 965 966/* 967 * acpi_fixed_button_handler: 968 * 969 * Event handler for the fixed buttons. 970 */ 971static UINT32 972acpi_fixed_button_handler(void *context) 973{ 974 struct sysmon_pswitch *smpsw = context; 975 int rv; 976 977#ifdef ACPI_BUT_DEBUG 978 printf("%s: fixed button handler\n", smpsw->smpsw_name); 979#endif 980 981 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 982 acpi_fixed_button_pressed, smpsw); 983 if (ACPI_FAILURE(rv)) 984 printf("%s: WARNING: unable to queue fixed button pressed " 985 "callback: %s\n", smpsw->smpsw_name, 986 AcpiFormatException(rv)); 987 988 return ACPI_INTERRUPT_HANDLED; 989} 990 991/* 992 * acpi_fixed_button_pressed: 993 * 994 * Deal with a fixed button being pressed. 995 */ 996static void 997acpi_fixed_button_pressed(void *context) 998{ 999 struct sysmon_pswitch *smpsw = context; 1000 1001#ifdef ACPI_BUT_DEBUG 1002 printf("%s: fixed button pressed, calling sysmon\n", 1003 smpsw->smpsw_name); 1004#endif 1005 1006 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1007} 1008 1009/***************************************************************************** 1010 * ACPI utility routines. 1011 *****************************************************************************/ 1012 1013/* 1014 * acpi_eval_integer: 1015 * 1016 * Evaluate an integer object. 1017 */ 1018ACPI_STATUS 1019acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1020{ 1021 ACPI_STATUS rv; 1022 ACPI_BUFFER buf; 1023 ACPI_OBJECT param; 1024 1025 if (handle == NULL) 1026 handle = ACPI_ROOT_OBJECT; 1027 1028 buf.Pointer = ¶m; 1029 buf.Length = sizeof(param); 1030 1031 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 1032 if (ACPI_SUCCESS(rv)) 1033 *valp = param.Integer.Value; 1034 1035 return rv; 1036} 1037 1038/* 1039 * acpi_eval_string: 1040 * 1041 * Evaluate a (Unicode) string object. 1042 */ 1043ACPI_STATUS 1044acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1045{ 1046 ACPI_STATUS rv; 1047 ACPI_BUFFER buf; 1048 1049 if (handle == NULL) 1050 handle = ACPI_ROOT_OBJECT; 1051 1052 buf.Pointer = NULL; 1053 buf.Length = ACPI_ALLOCATE_BUFFER; 1054 1055 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1056 if (ACPI_SUCCESS(rv)) { 1057 ACPI_OBJECT *param = buf.Pointer; 1058 const char *ptr = param->String.Pointer; 1059 size_t len = param->String.Length; 1060 if ((*stringp = AcpiOsAllocate(len)) == NULL) 1061 rv = AE_NO_MEMORY; 1062 else 1063 (void)memcpy(*stringp, ptr, len); 1064 AcpiOsFree(param); 1065 } 1066 1067 return rv; 1068} 1069 1070 1071/* 1072 * acpi_eval_struct: 1073 * 1074 * Evaluate a more complex structure. 1075 * Caller must free buf.Pointer by AcpiOsFree(). 1076 */ 1077ACPI_STATUS 1078acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1079{ 1080 ACPI_STATUS rv; 1081 1082 if (handle == NULL) 1083 handle = ACPI_ROOT_OBJECT; 1084 1085 bufp->Pointer = NULL; 1086 bufp->Length = ACPI_ALLOCATE_BUFFER; 1087 1088 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1089 1090 return rv; 1091} 1092 1093/* 1094 * acpi_foreach_package_object: 1095 * 1096 * Iterate over all objects in a in a packages and pass then all 1097 * to a function. If the called function returns non AE_OK, the 1098 * iteration is stopped and that value is returned. 1099 */ 1100 1101ACPI_STATUS 1102acpi_foreach_package_object(ACPI_OBJECT *pkg, 1103 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1104 void *arg) 1105{ 1106 ACPI_STATUS rv = AE_OK; 1107 int i; 1108 1109 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1110 return AE_BAD_PARAMETER; 1111 1112 for (i = 0; i < pkg->Package.Count; i++) { 1113 rv = (*func)(&pkg->Package.Elements[i], arg); 1114 if (ACPI_FAILURE(rv)) 1115 break; 1116 } 1117 1118 return rv; 1119} 1120 1121const char * 1122acpi_name(ACPI_HANDLE handle) 1123{ 1124 static char buffer[80]; 1125 ACPI_BUFFER buf; 1126 ACPI_STATUS rv; 1127 1128 buf.Length = sizeof(buffer); 1129 buf.Pointer = buffer; 1130 1131 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1132 if (ACPI_FAILURE(rv)) 1133 return "(unknown acpi path)"; 1134 return buffer; 1135} 1136 1137/* 1138 * acpi_get: 1139 * 1140 * Fetch data info the specified (empty) ACPI buffer. 1141 * Caller must free buf.Pointer by AcpiOsFree(). 1142 */ 1143ACPI_STATUS 1144acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1145 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1146{ 1147 buf->Pointer = NULL; 1148 buf->Length = ACPI_ALLOCATE_BUFFER; 1149 1150 return (*getit)(handle, buf); 1151} 1152 1153 1154/* 1155 * acpi_match_hid 1156 * 1157 * Match given ids against _HID and _CIDs 1158 */ 1159int 1160acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1161{ 1162 int i; 1163 1164 while (*ids) { 1165 if (ad->Valid & ACPI_VALID_HID) { 1166 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 1167 return 1; 1168 } 1169 1170 if (ad->Valid & ACPI_VALID_CID) { 1171 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1172 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1173 return 1; 1174 } 1175 } 1176 ids++; 1177 } 1178 1179 return 0; 1180} 1181 1182/* 1183 * acpi_wake_gpe_helper 1184 * 1185 * Set/unset GPE as both Runtime and Wake 1186 */ 1187static void 1188acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1189{ 1190 ACPI_BUFFER buf; 1191 ACPI_STATUS rv; 1192 ACPI_OBJECT *p, *elt; 1193 1194 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1195 if (ACPI_FAILURE(rv)) 1196 return; /* just ignore */ 1197 1198 p = buf.Pointer; 1199 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1200 goto out; /* just ignore */ 1201 1202 elt = p->Package.Elements; 1203 1204 /* TBD: package support */ 1205 if (enable) { 1206 AcpiSetGpeType(NULL, elt[0].Integer.Value, 1207 ACPI_GPE_TYPE_WAKE_RUN); 1208 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1209 } else 1210 AcpiDisableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1211 1212 out: 1213 AcpiOsFree(buf.Pointer); 1214} 1215 1216/* 1217 * acpi_clear_wake_gpe 1218 * 1219 * Clear GPE as both Runtime and Wake 1220 */ 1221void 1222acpi_clear_wake_gpe(ACPI_HANDLE handle) 1223{ 1224 acpi_wake_gpe_helper(handle, false); 1225} 1226 1227/* 1228 * acpi_set_wake_gpe 1229 * 1230 * Set GPE as both Runtime and Wake 1231 */ 1232void 1233acpi_set_wake_gpe(ACPI_HANDLE handle) 1234{ 1235 acpi_wake_gpe_helper(handle, true); 1236} 1237 1238 1239/***************************************************************************** 1240 * ACPI sleep support. 1241 *****************************************************************************/ 1242 1243static int 1244is_available_state(struct acpi_softc *sc, int state) 1245{ 1246 UINT8 type_a, type_b; 1247 1248 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1249 &type_a, &type_b)); 1250} 1251 1252/* 1253 * acpi_enter_sleep_state: 1254 * 1255 * enter to the specified sleep state. 1256 */ 1257 1258ACPI_STATUS 1259acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1260{ 1261 int err; 1262 ACPI_STATUS ret = AE_OK; 1263 1264 if (state == acpi_sleepstate) 1265 return AE_OK; 1266 1267 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1268 1269 switch (state) { 1270 case ACPI_STATE_S0: 1271 break; 1272 case ACPI_STATE_S1: 1273 case ACPI_STATE_S2: 1274 case ACPI_STATE_S3: 1275 case ACPI_STATE_S4: 1276 if (!is_available_state(sc, state)) { 1277 aprint_error_dev(sc->sc_dev, 1278 "ACPI S%d not available on this platform\n", state); 1279 break; 1280 } 1281 1282 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_F_NONE)) { 1283 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1284 break; 1285 } 1286 1287 ret = AcpiEnterSleepStatePrep(state); 1288 if (ACPI_FAILURE(ret)) { 1289 aprint_error_dev(sc->sc_dev, 1290 "failed preparing to sleep (%s)\n", 1291 AcpiFormatException(ret)); 1292 break; 1293 } 1294 1295 acpi_sleepstate = state; 1296 if (state == ACPI_STATE_S1) { 1297 /* just enter the state */ 1298 acpi_md_OsDisableInterrupt(); 1299 ret = AcpiEnterSleepState((UINT8)state); 1300 if (ACPI_FAILURE(ret)) 1301 aprint_error_dev(sc->sc_dev, 1302 "failed to enter sleep state S1: %s\n", 1303 AcpiFormatException(ret)); 1304 AcpiLeaveSleepState((UINT8)state); 1305 } else { 1306 err = acpi_md_sleep(state); 1307 if (state == ACPI_STATE_S4) 1308 AcpiEnable(); 1309 pmf_system_bus_resume(PMF_F_NONE); 1310 AcpiLeaveSleepState((UINT8)state); 1311 pmf_system_resume(PMF_F_NONE); 1312 } 1313 1314 break; 1315 case ACPI_STATE_S5: 1316 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1317 if (ACPI_FAILURE(ret)) { 1318 aprint_error_dev(sc->sc_dev, 1319 "failed preparing to sleep (%s)\n", 1320 AcpiFormatException(ret)); 1321 break; 1322 } 1323 DELAY(1000000); 1324 acpi_sleepstate = state; 1325 acpi_md_OsDisableInterrupt(); 1326 AcpiEnterSleepState(ACPI_STATE_S5); 1327 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1328 break; 1329 } 1330 1331 acpi_sleepstate = ACPI_STATE_S0; 1332 return ret; 1333} 1334 1335#if defined(ACPI_ACTIVATE_DEV) 1336/* XXX This very incomplete */ 1337ACPI_STATUS 1338acpi_allocate_resources(ACPI_HANDLE handle) 1339{ 1340 ACPI_BUFFER bufp, bufc, bufn; 1341 ACPI_RESOURCE *resp, *resc, *resn; 1342 ACPI_RESOURCE_IRQ *irq; 1343 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1344 ACPI_STATUS rv; 1345 uint delta; 1346 1347 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1348 if (ACPI_FAILURE(rv)) 1349 goto out; 1350 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1351 if (ACPI_FAILURE(rv)) { 1352 goto out1; 1353 } 1354 1355 bufn.Length = 1000; 1356 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1357 resp = bufp.Pointer; 1358 resc = bufc.Pointer; 1359 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1360 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1361 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1362 resp = ACPI_NEXT_RESOURCE(resp); 1363 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1364 break; 1365 /* Found identical Id */ 1366 resn->Type = resc->Type; 1367 switch (resc->Type) { 1368 case ACPI_RESOURCE_TYPE_IRQ: 1369 memcpy(&resn->Data, &resp->Data, 1370 sizeof(ACPI_RESOURCE_IRQ)); 1371 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1372 irq->Interrupts[0] = 1373 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1374 Interrupts[irq->InterruptCount-1]; 1375 irq->InterruptCount = 1; 1376 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1377 break; 1378 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1379 memcpy(&resn->Data, &resp->Data, 1380 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1381 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1382#if 0 1383 /* 1384 * XXX not duplicating the interrupt logic above 1385 * because its not clear what it accomplishes. 1386 */ 1387 xirq->Interrupts[0] = 1388 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1389 Interrupts[irq->NumberOfInterrupts-1]; 1390 xirq->NumberOfInterrupts = 1; 1391#endif 1392 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1393 break; 1394 case ACPI_RESOURCE_TYPE_IO: 1395 memcpy(&resn->Data, &resp->Data, 1396 sizeof(ACPI_RESOURCE_IO)); 1397 resn->Length = resp->Length; 1398 break; 1399 default: 1400 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1401 rv = AE_BAD_DATA; 1402 goto out2; 1403 } 1404 resc = ACPI_NEXT_RESOURCE(resc); 1405 resn = ACPI_NEXT_RESOURCE(resn); 1406 resp = ACPI_NEXT_RESOURCE(resp); 1407 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1408 if (delta >= 1409 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1410 bufn.Length *= 2; 1411 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1412 M_ACPI, M_WAITOK); 1413 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1414 } 1415 } 1416 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1417 printf("acpi_allocate_resources: resc not exhausted\n"); 1418 rv = AE_BAD_DATA; 1419 goto out3; 1420 } 1421 1422 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1423 rv = AcpiSetCurrentResources(handle, &bufn); 1424 if (ACPI_FAILURE(rv)) { 1425 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1426 AcpiFormatException(rv)); 1427 } 1428 1429out3: 1430 free(bufn.Pointer, M_ACPI); 1431out2: 1432 AcpiOsFree(bufc.Pointer); 1433out1: 1434 AcpiOsFree(bufp.Pointer); 1435out: 1436 return rv; 1437} 1438#endif /* ACPI_ACTIVATE_DEV */ 1439 1440SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1441{ 1442 const struct sysctlnode *node; 1443 const struct sysctlnode *ssnode; 1444 1445 if (sysctl_createv(clog, 0, NULL, NULL, 1446 CTLFLAG_PERMANENT, 1447 CTLTYPE_NODE, "hw", NULL, 1448 NULL, 0, NULL, 0, 1449 CTL_HW, CTL_EOL) != 0) 1450 return; 1451 1452 if (sysctl_createv(clog, 0, NULL, &node, 1453 CTLFLAG_PERMANENT, 1454 CTLTYPE_NODE, "acpi", NULL, 1455 NULL, 0, NULL, 0, 1456 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1457 return; 1458 1459 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1460 CTLTYPE_QUAD, "root", 1461 SYSCTL_DESCR("ACPI root pointer"), 1462 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1463 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1464 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1465 CTLTYPE_STRING, "supported_states", 1466 SYSCTL_DESCR("Supported ACPI system states"), 1467 NULL, 0, acpi_supported_states, 0, 1468 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1469 1470 /* ACPI sleepstate sysctl */ 1471 if (sysctl_createv(NULL, 0, NULL, &node, 1472 CTLFLAG_PERMANENT, 1473 CTLTYPE_NODE, "machdep", NULL, 1474 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1475 return; 1476 if (sysctl_createv(NULL, 0, &node, &ssnode, 1477 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1478 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1479 CTL_EOL) != 0) 1480 return; 1481} 1482 1483static int 1484sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1485{ 1486 int error, t; 1487 struct sysctlnode node; 1488 1489 node = *rnode; 1490 t = acpi_sleepstate; 1491 node.sysctl_data = &t; 1492 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1493 if (error || newp == NULL) 1494 return error; 1495 1496 if (acpi_softc == NULL) 1497 return ENOSYS; 1498 1499 acpi_enter_sleep_state(acpi_softc, t); 1500 1501 return 0; 1502} 1503 1504static ACPI_TABLE_HEADER * 1505acpi_map_rsdt(void) 1506{ 1507 ACPI_PHYSICAL_ADDRESS paddr; 1508 ACPI_TABLE_RSDP *rsdp; 1509 1510 paddr = AcpiOsGetRootPointer(); 1511 if (paddr == 0) { 1512 printf("ACPI: couldn't get root pointer\n"); 1513 return NULL; 1514 } 1515 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1516 if (rsdp == NULL) { 1517 printf("ACPI: couldn't map RSDP\n"); 1518 return NULL; 1519 } 1520 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1521 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1522 else 1523 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1524 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1525 1526 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1527} 1528 1529static void 1530acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1531{ 1532 if (rsdt == NULL) 1533 return; 1534 1535 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1536} 1537