acpi.c revision 1.64
1/* $NetBSD: acpi.c,v 1.64 2004/05/01 12:03:48 kochi 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 1.64 2004/05/01 12:03:48 kochi Exp $"); 81 82#include "opt_acpi.h" 83 84#include <sys/param.h> 85#include <sys/systm.h> 86#include <sys/device.h> 87#include <sys/malloc.h> 88#include <sys/kernel.h> 89#include <sys/proc.h> 90 91#include <dev/acpi/acpica.h> 92#include <dev/acpi/acpireg.h> 93#include <dev/acpi/acpivar.h> 94#include <dev/acpi/acpi_osd.h> 95#ifdef ACPIVERBOSE 96#include <dev/acpi/acpidevs_data.h> 97#endif 98 99#ifdef ACPI_PCI_FIXUP 100#include <dev/pci/pcidevs.h> 101#endif 102 103MALLOC_DECLARE(M_ACPI); 104 105#include <machine/acpi_machdep.h> 106 107#ifdef ACPI_DEBUGGER 108#define ACPI_DBGR_INIT 0x01 109#define ACPI_DBGR_TABLES 0x02 110#define ACPI_DBGR_ENABLE 0x04 111#define ACPI_DBGR_PROBE 0x08 112#define ACPI_DBGR_RUNNING 0x10 113 114int acpi_dbgr = 0x00; 115#endif 116 117static int acpi_match(struct device *, struct cfdata *, void *); 118static void acpi_attach(struct device *, struct device *, void *); 119 120static int acpi_print(void *aux, const char *); 121 122extern struct cfdriver acpi_cd; 123 124CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 125 acpi_match, acpi_attach, NULL, NULL); 126 127/* 128 * This is a flag we set when the ACPI subsystem is active. Machine 129 * dependent code may wish to skip other steps (such as attaching 130 * subsystems that ACPI supercedes) when ACPI is active. 131 */ 132int acpi_active; 133 134/* 135 * Pointer to the ACPI subsystem's state. There can be only 136 * one ACPI instance. 137 */ 138struct acpi_softc *acpi_softc; 139 140/* 141 * Locking stuff. 142 */ 143static struct simplelock acpi_slock; 144static int acpi_locked; 145 146/* 147 * Prototypes. 148 */ 149static void acpi_shutdown(void *); 150static ACPI_STATUS acpi_disable(struct acpi_softc *sc); 151static void acpi_build_tree(struct acpi_softc *); 152static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 153 154static void acpi_enable_fixed_events(struct acpi_softc *); 155#ifdef ACPI_PCI_FIXUP 156void acpi_pci_fixup(struct acpi_softc *); 157#endif 158#if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 159static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE handle); 160#endif 161 162/* 163 * acpi_probe: 164 * 165 * Probe for ACPI support. This is called by the 166 * machine-dependent ACPI front-end. All of the 167 * actual work is done by ACPICA. 168 * 169 * NOTE: This is not an autoconfiguration interface function. 170 */ 171int 172acpi_probe(void) 173{ 174 static int beenhere; 175 ACPI_STATUS rv; 176 177 if (beenhere != 0) 178 panic("acpi_probe: ACPI has already been probed"); 179 beenhere = 1; 180 181 simple_lock_init(&acpi_slock); 182 acpi_locked = 0; 183 184 /* 185 * Start up ACPICA. 186 */ 187#ifdef ACPI_DEBUGGER 188 if (acpi_dbgr & ACPI_DBGR_INIT) 189 acpi_osd_debugger(); 190#endif 191 192 rv = AcpiInitializeSubsystem(); 193 if (ACPI_FAILURE(rv)) { 194 printf("ACPI: unable to initialize ACPICA: %s\n", 195 AcpiFormatException(rv)); 196 return 0; 197 } 198 199#ifdef ACPI_DEBUGGER 200 if (acpi_dbgr & ACPI_DBGR_TABLES) 201 acpi_osd_debugger(); 202#endif 203 204 rv = AcpiLoadTables(); 205 if (ACPI_FAILURE(rv)) { 206 printf("ACPI: unable to load tables: %s\n", 207 AcpiFormatException(rv)); 208 return 0; 209 } 210 211 /* 212 * Looks like we have ACPI! 213 */ 214 215 return 1; 216} 217 218/* 219 * acpi_match: 220 * 221 * Autoconfiguration `match' routine. 222 */ 223static int 224acpi_match(struct device *parent, struct cfdata *match, void *aux) 225{ 226 struct acpibus_attach_args *aa = aux; 227 228 if (strcmp(aa->aa_busname, acpi_cd.cd_name) != 0) 229 return 0; 230 231 /* 232 * XXX Check other locators? Hard to know -- machine 233 * dependent code has already checked for the presence 234 * of ACPI by calling acpi_probe(), so I suppose we 235 * don't really have to do anything else. 236 */ 237 return 1; 238} 239 240/* 241 * acpi_attach: 242 * 243 * Autoconfiguration `attach' routine. Finish initializing 244 * ACPICA (some initialization was done in acpi_probe(), 245 * which was required to check for the presence of ACPI), 246 * and enable the ACPI subsystem. 247 */ 248static void 249acpi_attach(struct device *parent, struct device *self, void *aux) 250{ 251 struct acpi_softc *sc = (void *) self; 252 struct acpibus_attach_args *aa = aux; 253 ACPI_STATUS rv; 254 255 printf("\n"); 256 257 if (acpi_softc != NULL) 258 panic("acpi_attach: ACPI has already been attached"); 259 260 sysmon_power_settype("acpi"); 261 262 printf("%s: using Intel ACPI CA subsystem version %08x\n", 263 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 264 265 printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 266 sc->sc_dev.dv_xname, 267 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 268 AcpiGbl_XSDT->OemRevision, 269 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 270 271 sc->sc_quirks = acpi_find_quirks(); 272 273 sc->sc_iot = aa->aa_iot; 274 sc->sc_memt = aa->aa_memt; 275 sc->sc_pc = aa->aa_pc; 276 sc->sc_pciflags = aa->aa_pciflags; 277 sc->sc_ic = aa->aa_ic; 278 279 acpi_softc = sc; 280 281 /* 282 * Bring ACPI on-line. 283 */ 284#ifdef ACPI_DEBUGGER 285 if (acpi_dbgr & ACPI_DBGR_ENABLE) 286 acpi_osd_debugger(); 287#endif 288 289 rv = AcpiEnableSubsystem(0); 290 if (ACPI_FAILURE(rv)) { 291 printf("%s: unable to enable ACPI: %s\n", 292 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 293 return; 294 } 295 296 /* early EC handler initialization if ECDT table is available */ 297#if NACPIEC > 0 298 acpiec_early_attach(&sc->sc_dev); 299#endif 300 301 rv = AcpiInitializeObjects(0); 302 if (ACPI_FAILURE(rv)) { 303 printf("%s: unable to initialize ACPI objects: %s\n", 304 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 305 return; 306 } 307 acpi_active = 1; 308 309 /* Our current state is "awake". */ 310 sc->sc_sleepstate = ACPI_STATE_S0; 311 312 /* Show SCI interrupt. */ 313 if (AcpiGbl_FADT != NULL) 314 printf("%s: SCI interrupting at int %d\n", 315 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 316 /* 317 * Check for fixed-hardware features. 318 */ 319 acpi_enable_fixed_events(sc); 320 321 /* 322 * Fix up PCI devices. 323 */ 324#ifdef ACPI_PCI_FIXUP 325 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 326 acpi_pci_fixup(sc); 327#endif 328 329 /* 330 * Scan the namespace and build our device tree. 331 */ 332#ifdef ACPI_DEBUGGER 333 if (acpi_dbgr & ACPI_DBGR_PROBE) 334 acpi_osd_debugger(); 335#endif 336 acpi_md_callback((struct device *)sc); 337 acpi_build_tree(sc); 338 339 /* 340 * Register a shutdown hook that disables certain ACPI 341 * events that might happen and confuse us while we're 342 * trying to shut down. 343 */ 344 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 345 if (sc->sc_sdhook == NULL) 346 printf("%s: WARNING: unable to register shutdown hook\n", 347 sc->sc_dev.dv_xname); 348 349#ifdef ACPI_DEBUGGER 350 if (acpi_dbgr & ACPI_DBGR_RUNNING) 351 acpi_osd_debugger(); 352#endif 353} 354 355/* 356 * acpi_shutdown: 357 * 358 * Shutdown hook for ACPI -- disable some events that 359 * might confuse us. 360 */ 361static void 362acpi_shutdown(void *arg) 363{ 364 struct acpi_softc *sc = arg; 365 ACPI_STATUS rv; 366 367 rv = acpi_disable(sc); 368 if (ACPI_FAILURE(rv)) 369 printf("%s: WARNING: unable to disable ACPI: %s\n", 370 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 371} 372 373/* 374 * acpi_disable: 375 * 376 * Disable ACPI. 377 */ 378static ACPI_STATUS 379acpi_disable(struct acpi_softc *sc) 380{ 381 ACPI_STATUS rv = AE_OK; 382 383 if (acpi_active) { 384 rv = AcpiDisable(); 385 if (ACPI_SUCCESS(rv)) 386 acpi_active = 0; 387 } 388 return rv; 389} 390 391struct acpi_make_devnode_state { 392 struct acpi_softc *softc; 393 struct acpi_scope *scope; 394}; 395 396/* 397 * acpi_build_tree: 398 * 399 * Scan relevant portions of the ACPI namespace and attach 400 * child devices. 401 */ 402static void 403acpi_build_tree(struct acpi_softc *sc) 404{ 405 static const char *scopes[] = { 406 "\\_PR_", /* ACPI 1.0 processor namespace */ 407 "\\_SB_", /* system bus namespace */ 408 "\\_SI_", /* system idicator namespace */ 409 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 410 NULL, 411 }; 412 struct acpi_attach_args aa; 413 struct acpi_make_devnode_state state; 414 struct acpi_scope *as; 415 struct acpi_devnode *ad; 416 ACPI_HANDLE parent; 417 ACPI_STATUS rv; 418 int i; 419 420 TAILQ_INIT(&sc->sc_scopes); 421 422 state.softc = sc; 423 424 /* 425 * Scan the namespace and build our tree. 426 */ 427 for (i = 0; scopes[i] != NULL; i++) { 428 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 429 as->as_name = scopes[i]; 430 TAILQ_INIT(&as->as_devnodes); 431 432 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 433 434 state.scope = as; 435 436 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 437 &parent); 438 if (ACPI_SUCCESS(rv)) { 439 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 440 acpi_make_devnode, &state, NULL); 441 } 442 443 /* Now, for this namespace, try and attach the devices. */ 444 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 445 aa.aa_node = ad; 446 aa.aa_iot = sc->sc_iot; 447 aa.aa_memt = sc->sc_memt; 448 aa.aa_pc = sc->sc_pc; 449 aa.aa_pciflags = sc->sc_pciflags; 450 aa.aa_ic = sc->sc_ic; 451 452 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 453 /* 454 * XXX We only attach devices which are: 455 * 456 * - present 457 * - enabled 458 * - functioning properly 459 * 460 * However, if enabled, it's decoding resources, 461 * so we should claim them, if possible. 462 * Requires changes to bus_space(9). 463 */ 464 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 465 ACPI_VALID_STA && 466 (ad->ad_devinfo->CurrentStatus & 467 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 468 ACPI_STA_DEV_OK)) != 469 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 470 ACPI_STA_DEV_OK)) 471 continue; 472 473 /* 474 * XXX Same problem as above... 475 */ 476 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 477 == 0) 478 continue; 479 } 480 481 ad->ad_device = config_found(&sc->sc_dev, 482 &aa, acpi_print); 483 } 484 } 485} 486 487#ifdef ACPI_ACTIVATE_DEV 488static void 489acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 490{ 491 ACPI_STATUS rv; 492 ACPI_BUFFER buf; 493 494 buf.Pointer = NULL; 495 buf.Length = ACPI_ALLOCATE_BUFFER; 496 497#ifdef ACPI_DEBUG 498 printf("acpi_activate_device: %s, old status=%x\n", 499 (*di)->HardwareId.Value, (*di)->CurrentStatus); 500#endif 501 502 rv = acpi_allocate_resources(handle); 503 if (ACPI_FAILURE(rv)) { 504 printf("acpi: activate failed for %s\n", 505 (*di)->HardwareId.Value); 506 } else { 507 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 508 } 509 510 (void)AcpiGetObjectInfo(handle, &buf); 511 AcpiOsFree(*di); 512 *di = buf.Pointer; 513 514#ifdef ACPI_DEBUG 515 printf("acpi_activate_device: %s, new status=%x\n", 516 (*di)->HardwareId.Value, (*di)->CurrentStatus); 517#endif 518} 519#endif /* ACPI_ACTIVATE_DEV */ 520 521/* 522 * acpi_make_devnode: 523 * 524 * Make an ACPI devnode. 525 */ 526static ACPI_STATUS 527acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 528 void **status) 529{ 530 struct acpi_make_devnode_state *state = context; 531#if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 532 struct acpi_softc *sc = state->softc; 533#endif 534 struct acpi_scope *as = state->scope; 535 struct acpi_devnode *ad; 536 ACPI_OBJECT_TYPE type; 537 ACPI_BUFFER buf; 538 ACPI_DEVICE_INFO *devinfo; 539 ACPI_STATUS rv; 540 541 rv = AcpiGetType(handle, &type); 542 if (ACPI_SUCCESS(rv)) { 543 buf.Pointer = NULL; 544 buf.Length = ACPI_ALLOCATE_BUFFER; 545 rv = AcpiGetObjectInfo(handle, &buf); 546 if (ACPI_FAILURE(rv)) { 547#ifdef ACPI_DEBUG 548 printf("%s: AcpiGetObjectInfo failed: %s\n", 549 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 550#endif 551 goto out; /* XXX why return OK */ 552 } 553 554 devinfo = buf.Pointer; 555 556 switch (type) { 557 case ACPI_TYPE_DEVICE: 558#ifdef ACPI_ACTIVATE_DEV 559 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 560 (ACPI_VALID_STA|ACPI_VALID_HID) && 561 (devinfo->CurrentStatus & 562 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 563 ACPI_STA_DEV_PRESENT) 564 acpi_activate_device(handle, &devinfo); 565 566 /* FALLTHROUGH */ 567#endif 568 569 case ACPI_TYPE_PROCESSOR: 570 case ACPI_TYPE_THERMAL: 571 case ACPI_TYPE_POWER: 572 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 573 if (ad == NULL) 574 return AE_NO_MEMORY; 575 576 ad->ad_devinfo = devinfo; 577 ad->ad_handle = handle; 578 ad->ad_level = level; 579 ad->ad_scope = as; 580 ad->ad_type = type; 581 582 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 583 584 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 585 goto out; 586 587#ifdef ACPI_EXTRA_DEBUG 588 printf("%s: HID %s found in scope %s level %d\n", 589 sc->sc_dev.dv_xname, 590 ad->ad_devinfo->HardwareId.Value, 591 as->as_name, ad->ad_level); 592 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 593 printf(" UID %s\n", 594 ad->ad_devinfo->UniqueId.Value); 595 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 596 printf(" ADR 0x%016qx\n", 597 ad->ad_devinfo->Address); 598 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 599 printf(" STA 0x%08x\n", 600 ad->ad_devinfo->CurrentStatus); 601#endif 602 } 603 } 604 out: 605 return AE_OK; 606} 607 608/* 609 * acpi_print: 610 * 611 * Autoconfiguration print routine. 612 */ 613static int 614acpi_print(void *aux, const char *pnp) 615{ 616 struct acpi_attach_args *aa = aux; 617 ACPI_STATUS rv; 618 619 if (pnp) { 620 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 621 char *pnpstr = 622 aa->aa_node->ad_devinfo->HardwareId.Value; 623 char *str; 624 625 aprint_normal("%s ", pnpstr); 626 rv = acpi_eval_string(aa->aa_node->ad_handle, 627 "_STR", &str); 628 if (ACPI_SUCCESS(rv)) { 629 aprint_normal("[%s] ", str); 630 AcpiOsFree(str); 631 } 632#ifdef ACPIVERBOSE 633 else { 634 int i; 635 636 for (i = 0; i < sizeof(acpi_knowndevs) / 637 sizeof(acpi_knowndevs[0]); i++) { 638 if (strcmp(acpi_knowndevs[i].pnp, 639 pnpstr) == 0) { 640 printf("[%s] ", 641 acpi_knowndevs[i].str); 642 } 643 } 644 } 645 646#endif 647 } else { 648 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 649 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 650 aa->aa_node->ad_devinfo->Type); 651 } 652 aprint_normal("at %s", pnp); 653 } else { 654 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 655 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 656 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 657 char *uid; 658 659 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 660 if (uid[0] == '\0') 661 uid = "<null>"; 662 aprint_normal("-%s", uid); 663 } 664 aprint_normal(")"); 665 } 666 } 667 668 return UNCONF; 669} 670 671/***************************************************************************** 672 * ACPI fixed-hardware feature handlers 673 *****************************************************************************/ 674 675static UINT32 acpi_fixed_button_handler(void *); 676static void acpi_fixed_button_pressed(void *); 677 678/* 679 * acpi_enable_fixed_events: 680 * 681 * Enable any fixed-hardware feature handlers. 682 */ 683static void 684acpi_enable_fixed_events(struct acpi_softc *sc) 685{ 686 static int beenhere; 687 ACPI_STATUS rv; 688 689 KASSERT(beenhere == 0); 690 beenhere = 1; 691 692 /* 693 * Check for fixed-hardware buttons. 694 */ 695 696 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 697 printf("%s: fixed-feature power button present\n", 698 sc->sc_dev.dv_xname); 699 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 700 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 701 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 702 printf("%s: unable to register fixed power button " 703 "with sysmon\n", sc->sc_dev.dv_xname); 704 } else { 705 rv = AcpiInstallFixedEventHandler( 706 ACPI_EVENT_POWER_BUTTON, 707 acpi_fixed_button_handler, &sc->sc_smpsw_power); 708 if (ACPI_FAILURE(rv)) { 709 printf("%s: unable to install handler for " 710 "fixed power button: %s\n", 711 sc->sc_dev.dv_xname, 712 AcpiFormatException(rv)); 713 } 714 } 715 } 716 717 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 718 printf("%s: fixed-feature sleep button present\n", 719 sc->sc_dev.dv_xname); 720 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 721 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 722 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 723 printf("%s: unable to register fixed sleep button " 724 "with sysmon\n", sc->sc_dev.dv_xname); 725 } else { 726 rv = AcpiInstallFixedEventHandler( 727 ACPI_EVENT_SLEEP_BUTTON, 728 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 729 if (ACPI_FAILURE(rv)) { 730 printf("%s: unable to install handler for " 731 "fixed sleep button: %s\n", 732 sc->sc_dev.dv_xname, 733 AcpiFormatException(rv)); 734 } 735 } 736 } 737} 738 739/* 740 * acpi_fixed_button_handler: 741 * 742 * Event handler for the fixed buttons. 743 */ 744static UINT32 745acpi_fixed_button_handler(void *context) 746{ 747 struct sysmon_pswitch *smpsw = context; 748 int rv; 749 750#ifdef ACPI_BUT_DEBUG 751 printf("%s: fixed button handler\n", smpsw->smpsw_name); 752#endif 753 754 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 755 acpi_fixed_button_pressed, smpsw); 756 if (ACPI_FAILURE(rv)) 757 printf("%s: WARNING: unable to queue fixed button pressed " 758 "callback: %s\n", smpsw->smpsw_name, 759 AcpiFormatException(rv)); 760 761 return ACPI_INTERRUPT_HANDLED; 762} 763 764/* 765 * acpi_fixed_button_pressed: 766 * 767 * Deal with a fixed button being pressed. 768 */ 769static void 770acpi_fixed_button_pressed(void *context) 771{ 772 struct sysmon_pswitch *smpsw = context; 773 774#ifdef ACPI_BUT_DEBUG 775 printf("%s: fixed button pressed, calling sysmon\n", 776 smpsw->smpsw_name); 777#endif 778 779 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 780} 781 782/***************************************************************************** 783 * ACPI utility routines. 784 *****************************************************************************/ 785 786/* 787 * acpi_eval_integer: 788 * 789 * Evaluate an integer object. 790 */ 791ACPI_STATUS 792acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp) 793{ 794 ACPI_STATUS rv; 795 ACPI_BUFFER buf; 796 ACPI_OBJECT param; 797 798 if (handle == NULL) 799 handle = ACPI_ROOT_OBJECT; 800 801 buf.Pointer = ¶m; 802 buf.Length = sizeof(param); 803 804 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 805 if (ACPI_SUCCESS(rv)) 806 *valp = param.Integer.Value; 807 808 return rv; 809} 810 811/* 812 * acpi_eval_string: 813 * 814 * Evaluate a (Unicode) string object. 815 */ 816ACPI_STATUS 817acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 818{ 819 ACPI_STATUS rv; 820 ACPI_BUFFER buf; 821 822 if (handle == NULL) 823 handle = ACPI_ROOT_OBJECT; 824 825 buf.Pointer = NULL; 826 buf.Length = ACPI_ALLOCATE_BUFFER; 827 828 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 829 if (ACPI_SUCCESS(rv)) { 830 ACPI_OBJECT *param = buf.Pointer; 831 char *ptr = param->String.Pointer; 832 size_t len = param->String.Length; 833 if ((*stringp = AcpiOsAllocate(len)) == NULL) 834 rv = AE_NO_MEMORY; 835 else 836 (void)memcpy(*stringp, ptr, len); 837 AcpiOsFree(param); 838 } 839 840 return rv; 841} 842 843 844/* 845 * acpi_eval_struct: 846 * 847 * Evaluate a more complex structure. 848 * Caller must free buf.Pointer by AcpiOsFree(). 849 */ 850ACPI_STATUS 851acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 852{ 853 ACPI_STATUS rv; 854 855 if (handle == NULL) 856 handle = ACPI_ROOT_OBJECT; 857 858 bufp->Pointer = NULL; 859 bufp->Length = ACPI_ALLOCATE_BUFFER; 860 861 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 862 863 return rv; 864} 865 866/* 867 * acpi_get: 868 * 869 * Fetch data info the specified (empty) ACPI buffer. 870 * Caller must free buf.Pointer by AcpiOsFree(). 871 */ 872ACPI_STATUS 873acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 874 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 875{ 876 buf->Pointer = NULL; 877 buf->Length = ACPI_ALLOCATE_BUFFER; 878 879 return (*getit)(handle, buf); 880} 881 882 883/* 884 * acpi_match_hid 885 * 886 * Match given ids against _HID and _CIDs 887 */ 888int 889acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 890{ 891 int i; 892 893 while (*ids) { 894 if (ad->Valid & ACPI_VALID_HID) { 895 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 896 return 1; 897 } 898 899 if (ad->Valid & ACPI_VALID_CID) { 900 for (i = 0; i < ad->CompatibilityId.Count; i++) { 901 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 902 return 1; 903 } 904 } 905 ids++; 906 } 907 908 return 0; 909} 910 911 912/***************************************************************************** 913 * ACPI sleep support. 914 *****************************************************************************/ 915 916static int 917is_available_state(struct acpi_softc *sc, int state) 918{ 919 UINT8 type_a, type_b; 920 921 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 922 &type_a, &type_b)); 923} 924 925/* 926 * acpi_enter_sleep_state: 927 * 928 * enter to the specified sleep state. 929 */ 930 931ACPI_STATUS 932acpi_enter_sleep_state(struct acpi_softc *sc, int state) 933{ 934 int s; 935 ACPI_STATUS ret = AE_OK; 936 937 switch (state) { 938 case ACPI_STATE_S0: 939 break; 940 case ACPI_STATE_S1: 941 case ACPI_STATE_S2: 942 case ACPI_STATE_S3: 943 case ACPI_STATE_S4: 944 if (!is_available_state(sc, state)) { 945 printf("acpi: cannot enter the sleep state (%d).\n", 946 state); 947 break; 948 } 949 ret = AcpiEnterSleepStatePrep(state); 950 if (ACPI_FAILURE(ret)) { 951 printf("acpi: failed preparing to sleep (%s)\n", 952 AcpiFormatException(ret)); 953 break; 954 } 955 if (state==ACPI_STATE_S1) { 956 /* just enter the state */ 957 acpi_md_OsDisableInterrupt(); 958 AcpiEnterSleepState((UINT8)state); 959 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 960 } else { 961 /* XXX: powerhooks(9) framework is too poor to 962 * support ACPI sleep state... 963 */ 964 dopowerhooks(PWR_SOFTSUSPEND); 965 s = splhigh(); 966 dopowerhooks(PWR_SUSPEND); 967 acpi_md_sleep(state); 968 dopowerhooks(PWR_RESUME); 969 splx(s); 970 dopowerhooks(PWR_SOFTRESUME); 971 if (state==ACPI_STATE_S4) 972 AcpiEnable(); 973 } 974 AcpiLeaveSleepState((UINT8)state); 975 break; 976 case ACPI_STATE_S5: 977 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 978 if (ACPI_FAILURE(ret)) { 979 printf("acpi: failed preparing to sleep (%s)\n", 980 AcpiFormatException(ret)); 981 break; 982 } 983 acpi_md_OsDisableInterrupt(); 984 AcpiEnterSleepState(ACPI_STATE_S5); 985 printf("WARNING: powerdown failed!\n"); 986 break; 987 } 988 989 return ret; 990} 991 992#ifdef ACPI_PCI_FIXUP 993ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 994/* 995 * acpi_pci_fixup: 996 * 997 * Set up PCI devices that BIOS didn't handle right. 998 * Iterate through all devices and try to get the _PTR 999 * (PCI Routing Table). If it exists then make sure all 1000 * interrupt links that it uses are working. 1001 */ 1002void 1003acpi_pci_fixup(struct acpi_softc *sc) 1004{ 1005 ACPI_HANDLE parent; 1006 ACPI_STATUS rv; 1007 1008#ifdef ACPI_DEBUG 1009 printf("acpi_pci_fixup starts:\n"); 1010#endif 1011 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent); 1012 if (ACPI_FAILURE(rv)) 1013 return; 1014 sc->sc_pci_bus = 0; 1015 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1016 acpi_pci_fixup_bus, sc, NULL); 1017} 1018 1019static uint 1020acpi_get_intr(ACPI_HANDLE handle) 1021{ 1022 ACPI_BUFFER ret; 1023 ACPI_STATUS rv; 1024 ACPI_RESOURCE *res; 1025 ACPI_RESOURCE_IRQ *irq; 1026 uint intr; 1027 1028 intr = -1; 1029 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1030 if (ACPI_FAILURE(rv)) 1031 return intr; 1032 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1033 res = ACPI_NEXT_RESOURCE(res)) { 1034 if (res->Id == ACPI_RSTYPE_IRQ) { 1035 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1036 if (irq->NumberOfInterrupts == 1) 1037 intr = irq->Interrupts[0]; 1038 break; 1039 } 1040 } 1041 AcpiOsFree(ret.Pointer); 1042 return intr; 1043} 1044 1045static void 1046acpi_pci_set_line(int bus, int dev, int pin, int line) 1047{ 1048 ACPI_STATUS err; 1049 ACPI_PCI_ID pid; 1050 UINT32 intr, id, bhlc; 1051 int func, nfunc; 1052 1053 pid.Bus = bus; 1054 pid.Device = dev; 1055 pid.Function = 0; 1056 1057 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1058 if (err) 1059 return; 1060 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1061 nfunc = 8; 1062 else 1063 nfunc = 1; 1064 1065 for (func = 0; func < nfunc; func++) { 1066 pid.Function = func; 1067 1068 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1069 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1070 PCI_VENDOR(id) == 0) 1071 continue; 1072 1073 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1074 &intr, 32); 1075 if (err) { 1076 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1077 return; 1078 } 1079 if (pin == PCI_INTERRUPT_PIN(intr) && 1080 line != PCI_INTERRUPT_LINE(intr)) { 1081#ifdef ACPI_DEBUG 1082 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1083 bus, dev, func, 1084 pin + '@', PCI_INTERRUPT_LINE(intr), 1085 line); 1086#endif 1087 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1088 PCI_INTERRUPT_LINE_SHIFT); 1089 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1090 err = AcpiOsWritePciConfiguration(&pid, 1091 PCI_INTERRUPT_REG, intr, 32); 1092 if (err) { 1093 printf("AcpiOsWritePciConfiguration failed" 1094 " %d\n", err); 1095 return; 1096 } 1097 } 1098 } 1099} 1100 1101ACPI_STATUS 1102acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1103 void **status) 1104{ 1105 struct acpi_softc *sc = context; 1106 ACPI_STATUS rv; 1107 ACPI_BUFFER buf; 1108 UINT8 *Buffer; 1109 ACPI_PCI_ROUTING_TABLE *PrtElement; 1110 ACPI_HANDLE link; 1111 uint line; 1112 ACPI_INTEGER val; 1113 1114 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1115 if (ACPI_FAILURE(rv)) 1116 return AE_OK; 1117 1118 /* 1119 * If at level 1, this is a PCI root bus. Try the _BBN method 1120 * to get the right PCI bus numbering for the following 1121 * busses (this is a depth-first walk). It may fail, 1122 * for example if there's only one root bus, but that 1123 * case should be ok, so we'll ignore that. 1124 */ 1125 if (level == 1) { 1126 rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val); 1127 if (!ACPI_FAILURE(rv)) { 1128#ifdef ACPI_DEBUG 1129 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1130 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1131 ACPI_LOWORD(val)); 1132#endif 1133 sc->sc_pci_bus = ACPI_LOWORD(val); 1134 } 1135 } 1136 1137 1138#ifdef ACPI_DEBUG 1139 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1140 sc->sc_pci_bus, level); 1141#endif 1142 1143 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1144 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1145 if (PrtElement->Length == 0) 1146 break; 1147 if (PrtElement->Source[0] == 0) 1148 continue; 1149 1150 rv = AcpiGetHandle(NULL, PrtElement->Source, &link); 1151 if (ACPI_FAILURE(rv)) 1152 continue; 1153 line = acpi_get_intr(link); 1154 if (line == -1) { 1155#ifdef ACPI_DEBUG 1156 printf("%s: fixing up intr link %s\n", 1157 sc->sc_dev.dv_xname, PrtElement->Source); 1158#endif 1159 rv = acpi_allocate_resources(link); 1160 if (ACPI_FAILURE(rv)) { 1161 printf("%s: interrupt allocation failed %s\n", 1162 sc->sc_dev.dv_xname, PrtElement->Source); 1163 continue; 1164 } 1165 line = acpi_get_intr(link); 1166 if (line == -1) { 1167 printf("%s: get intr failed %s\n", 1168 sc->sc_dev.dv_xname, PrtElement->Source); 1169 continue; 1170 } 1171 } 1172 1173 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1174 PrtElement->Pin + 1, line); 1175 } 1176 1177 sc->sc_pci_bus++; 1178 1179 AcpiOsFree(buf.Pointer); 1180 return AE_OK; 1181} 1182#endif /* ACPI_PCI_FIXUP */ 1183 1184#if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1185/* XXX This very incomplete */ 1186static ACPI_STATUS 1187acpi_allocate_resources(ACPI_HANDLE handle) 1188{ 1189 ACPI_BUFFER bufp, bufc, bufn; 1190 ACPI_RESOURCE *resp, *resc, *resn; 1191 ACPI_RESOURCE_IRQ *irq; 1192 ACPI_STATUS rv; 1193 uint delta; 1194 1195 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1196 if (ACPI_FAILURE(rv)) 1197 goto out; 1198 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1199 if (ACPI_FAILURE(rv)) { 1200 goto out1; 1201 } 1202 1203 bufn.Length = 1000; 1204 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1205 resp = bufp.Pointer; 1206 resc = bufc.Pointer; 1207 while (resc->Id != ACPI_RSTYPE_END_TAG && 1208 resp->Id != ACPI_RSTYPE_END_TAG) { 1209 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1210 resp = ACPI_NEXT_RESOURCE(resp); 1211 if (resp->Id == ACPI_RSTYPE_END_TAG) 1212 break; 1213 /* Found identical Id */ 1214 resn->Id = resc->Id; 1215 switch (resc->Id) { 1216 case ACPI_RSTYPE_IRQ: 1217 memcpy(&resn->Data, &resp->Data, 1218 sizeof(ACPI_RESOURCE_IRQ)); 1219 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1220 irq->Interrupts[0] = 1221 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1222 Interrupts[irq->NumberOfInterrupts-1]; 1223 irq->NumberOfInterrupts = 1; 1224 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1225 break; 1226 case ACPI_RSTYPE_IO: 1227 memcpy(&resn->Data, &resp->Data, 1228 sizeof(ACPI_RESOURCE_IO)); 1229 resn->Length = resp->Length; 1230 break; 1231 default: 1232 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1233 rv = AE_BAD_DATA; 1234 goto out2; 1235 } 1236 resc = ACPI_NEXT_RESOURCE(resc); 1237 resn = ACPI_NEXT_RESOURCE(resn); 1238 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1239 if (delta >= 1240 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1241 bufn.Length *= 2; 1242 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1243 M_ACPI, M_WAITOK); 1244 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1245 } 1246 } 1247 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1248 printf("acpi_allocate_resources: resc not exhausted\n"); 1249 rv = AE_BAD_DATA; 1250 goto out3; 1251 } 1252 1253 resn->Id = ACPI_RSTYPE_END_TAG; 1254 rv = AcpiSetCurrentResources(handle, &bufn); 1255 if (ACPI_FAILURE(rv)) { 1256 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1257 AcpiFormatException(rv)); 1258 } 1259 1260out3: 1261 free(bufn.Pointer, M_ACPI); 1262out2: 1263 AcpiOsFree(bufc.Pointer); 1264out1: 1265 AcpiOsFree(bufp.Pointer); 1266out: 1267 return rv; 1268} 1269#endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1270