acpi.c revision 1.47
1 /* $NetBSD: acpi.c,v 1.47 2003/10/31 17:22:28 mycroft Exp $ */ 2 3 /* 4 * Copyright 2001, 2003 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 /* 39 * Autoconfiguration support for the Intel ACPI Component Architecture 40 * ACPI reference implementation. 41 */ 42 43 #include <sys/cdefs.h> 44 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.47 2003/10/31 17:22:28 mycroft Exp $"); 45 46 #include "opt_acpi.h" 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/device.h> 51 #include <sys/malloc.h> 52 #include <sys/kernel.h> 53 #include <sys/proc.h> 54 55 #include <dev/acpi/acpica.h> 56 #include <dev/acpi/acpireg.h> 57 #include <dev/acpi/acpivar.h> 58 #include <dev/acpi/acpi_osd.h> 59 #ifdef ACPIVERBOSE 60 #include <dev/acpi/acpidevs_data.h> 61 #endif 62 63 #ifdef ACPI_PCI_FIXUP 64 #include <dev/acpi/acpica/Subsystem/acnamesp.h> /* AcpiNsGetNodeByPath() */ 65 #include <dev/pci/pcidevs.h> 66 #endif 67 68 MALLOC_DECLARE(M_ACPI); 69 70 #include <machine/acpi_machdep.h> 71 72 #ifdef ACPI_DEBUGGER 73 #define ACPI_DBGR_INIT 0x01 74 #define ACPI_DBGR_TABLES 0x02 75 #define ACPI_DBGR_ENABLE 0x04 76 #define ACPI_DBGR_PROBE 0x08 77 #define ACPI_DBGR_RUNNING 0x10 78 79 int acpi_dbgr = 0x00; 80 #endif 81 82 int acpi_match(struct device *, struct cfdata *, void *); 83 void acpi_attach(struct device *, struct device *, void *); 84 85 int acpi_print(void *aux, const char *); 86 87 extern struct cfdriver acpi_cd; 88 89 CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 90 acpi_match, acpi_attach, NULL, NULL); 91 92 /* 93 * This is a flag we set when the ACPI subsystem is active. Machine 94 * dependent code may wish to skip other steps (such as attaching 95 * subsystems that ACPI supercedes) when ACPI is active. 96 */ 97 int acpi_active; 98 99 /* 100 * Pointer to the ACPI subsystem's state. There can be only 101 * one ACPI instance. 102 */ 103 struct acpi_softc *acpi_softc; 104 105 /* 106 * Locking stuff. 107 */ 108 static struct simplelock acpi_slock; 109 static int acpi_locked; 110 111 /* 112 * Prototypes. 113 */ 114 void acpi_shutdown(void *); 115 ACPI_STATUS acpi_disable(struct acpi_softc *sc); 116 void acpi_build_tree(struct acpi_softc *); 117 ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 118 119 void acpi_enable_fixed_events(struct acpi_softc *); 120 #ifdef ACPI_PCI_FIXUP 121 void acpi_pci_fixup(struct acpi_softc *); 122 #endif 123 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 124 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE handle); 125 #endif 126 127 /* 128 * acpi_probe: 129 * 130 * Probe for ACPI support. This is called by the 131 * machine-dependent ACPI front-end. All of the 132 * actual work is done by ACPICA. 133 * 134 * NOTE: This is not an autoconfiguration interface function. 135 */ 136 int 137 acpi_probe(void) 138 { 139 static int beenhere; 140 ACPI_STATUS rv; 141 142 if (beenhere != 0) 143 panic("acpi_probe: ACPI has already been probed"); 144 beenhere = 1; 145 146 simple_lock_init(&acpi_slock); 147 acpi_locked = 0; 148 149 /* 150 * Start up ACPICA. 151 */ 152 #ifdef ACPI_DEBUGGER 153 if (acpi_dbgr & ACPI_DBGR_INIT) 154 acpi_osd_debugger(); 155 #endif 156 157 rv = AcpiInitializeSubsystem(); 158 if (rv != AE_OK) { 159 printf("ACPI: unable to initialize ACPICA: %d\n", rv); 160 return (0); 161 } 162 163 #ifdef ACPI_DEBUGGER 164 if (acpi_dbgr & ACPI_DBGR_TABLES) 165 acpi_osd_debugger(); 166 #endif 167 168 rv = AcpiLoadTables(); 169 if (rv != AE_OK) { 170 printf("ACPI: unable to load tables: %d\n", rv); 171 return (0); 172 } 173 174 /* 175 * Looks like we have ACPI! 176 */ 177 178 return (1); 179 } 180 181 /* 182 * acpi_match: 183 * 184 * Autoconfiguration `match' routine. 185 */ 186 int 187 acpi_match(struct device *parent, struct cfdata *match, void *aux) 188 { 189 struct acpibus_attach_args *aa = aux; 190 191 if (strcmp(aa->aa_busname, acpi_cd.cd_name) != 0) 192 return (0); 193 194 /* 195 * XXX Check other locators? Hard to know -- machine 196 * dependent code has already checked for the presence 197 * of ACPI by calling acpi_probe(), so I suppose we 198 * don't really have to do anything else. 199 */ 200 return (1); 201 } 202 203 /* 204 * acpi_attach: 205 * 206 * Autoconfiguration `attach' routine. Finish initializing 207 * ACPICA (some initialization was done in acpi_probe(), 208 * which was required to check for the presence of ACPI), 209 * and enable the ACPI subsystem. 210 */ 211 void 212 acpi_attach(struct device *parent, struct device *self, void *aux) 213 { 214 struct acpi_softc *sc = (void *) self; 215 struct acpibus_attach_args *aa = aux; 216 ACPI_TABLE_HEADER *ap = &AcpiGbl_XSDT->Header; 217 ACPI_STATUS rv; 218 219 printf("\n"); 220 221 if (acpi_softc != NULL) 222 panic("acpi_attach: ACPI has already been attached"); 223 224 sysmon_power_settype("acpi"); 225 226 printf("%s: using Intel ACPI CA subsystem version %08x\n", 227 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 228 229 printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 230 sc->sc_dev.dv_xname, 231 ap->OemId, ap->OemTableId, ap->OemRevision, 232 ap->AslCompilerId, ap->AslCompilerRevision); 233 234 sc->sc_quirks = acpi_find_quirks(); 235 236 sc->sc_iot = aa->aa_iot; 237 sc->sc_memt = aa->aa_memt; 238 sc->sc_pc = aa->aa_pc; 239 sc->sc_pciflags = aa->aa_pciflags; 240 sc->sc_ic = aa->aa_ic; 241 242 acpi_softc = sc; 243 244 /* 245 * Install the default address space handlers. 246 */ 247 248 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 249 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 250 if (rv != AE_OK) { 251 printf("%s: unable to install SYSTEM MEMORY handler: %d\n", 252 sc->sc_dev.dv_xname, rv); 253 return; 254 } 255 256 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 257 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 258 if (rv != AE_OK) { 259 printf("%s: unable to install SYSTEM IO handler: %d\n", 260 sc->sc_dev.dv_xname, rv); 261 return; 262 } 263 264 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 265 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 266 if (rv != AE_OK) { 267 printf("%s: unable to install PCI CONFIG handler: %d\n", 268 sc->sc_dev.dv_xname, rv); 269 return; 270 } 271 272 /* 273 * Bring ACPI on-line. 274 */ 275 #ifdef ACPI_DEBUGGER 276 if (acpi_dbgr & ACPI_DBGR_ENABLE) 277 acpi_osd_debugger(); 278 #endif 279 280 rv = AcpiEnableSubsystem(0); 281 if (rv != AE_OK) { 282 printf("%s: unable to enable ACPI: %d\n", 283 sc->sc_dev.dv_xname, rv); 284 return; 285 } 286 rv = AcpiInitializeObjects(0); 287 if (rv != AE_OK) { 288 printf("%s: unable to initialize ACPI objects: %d\n", 289 sc->sc_dev.dv_xname, rv); 290 return; 291 } 292 acpi_active = 1; 293 294 /* Our current state is "awake". */ 295 sc->sc_sleepstate = ACPI_STATE_S0; 296 297 /* Show SCI interrupt. */ 298 if (AcpiGbl_FADT != NULL) 299 printf("%s: SCI interrupting at int %d\n", 300 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 301 /* 302 * Check for fixed-hardware features. 303 */ 304 acpi_enable_fixed_events(sc); 305 306 /* 307 * Fix up PCI devices. 308 */ 309 #ifdef ACPI_PCI_FIXUP 310 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 311 acpi_pci_fixup(sc); 312 #endif 313 314 /* 315 * Scan the namespace and build our device tree. 316 */ 317 #ifdef ACPI_DEBUGGER 318 if (acpi_dbgr & ACPI_DBGR_PROBE) 319 acpi_osd_debugger(); 320 #endif 321 acpi_md_callback((struct device *)sc); 322 acpi_build_tree(sc); 323 324 /* 325 * Register a shutdown hook that disables certain ACPI 326 * events that might happen and confuse us while we're 327 * trying to shut down. 328 */ 329 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 330 if (sc->sc_sdhook == NULL) 331 printf("%s: WARNING: unable to register shutdown hook\n", 332 sc->sc_dev.dv_xname); 333 334 #ifdef ACPI_DEBUGGER 335 if (acpi_dbgr & ACPI_DBGR_RUNNING) 336 acpi_osd_debugger(); 337 #endif 338 } 339 340 /* 341 * acpi_shutdown: 342 * 343 * Shutdown hook for ACPI -- disable some events that 344 * might confuse us. 345 */ 346 void 347 acpi_shutdown(void *arg) 348 { 349 struct acpi_softc *sc = arg; 350 351 if (acpi_disable(sc) != AE_OK) 352 printf("%s: WARNING: unable to disable ACPI\n", 353 sc->sc_dev.dv_xname); 354 } 355 356 /* 357 * acpi_disable: 358 * 359 * Disable ACPI. 360 */ 361 ACPI_STATUS 362 acpi_disable(struct acpi_softc *sc) 363 { 364 ACPI_STATUS rv = AE_OK; 365 366 if (acpi_active) { 367 rv = AcpiDisable(); 368 if (rv == AE_OK) 369 acpi_active = 0; 370 } 371 return (rv); 372 } 373 374 struct acpi_make_devnode_state { 375 struct acpi_softc *softc; 376 struct acpi_scope *scope; 377 }; 378 379 /* 380 * acpi_build_tree: 381 * 382 * Scan relevant portions of the ACPI namespace and attach 383 * child devices. 384 */ 385 void 386 acpi_build_tree(struct acpi_softc *sc) 387 { 388 static const char *scopes[] = { 389 "\\_PR_", /* ACPI 1.0 processor namespace */ 390 "\\_SB_", /* system bus namespace */ 391 "\\_SI_", /* system idicator namespace */ 392 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 393 NULL, 394 }; 395 struct acpi_attach_args aa; 396 struct acpi_make_devnode_state state; 397 struct acpi_scope *as; 398 struct acpi_devnode *ad; 399 ACPI_HANDLE parent; 400 int i; 401 402 TAILQ_INIT(&sc->sc_scopes); 403 404 state.softc = sc; 405 406 /* 407 * Scan the namespace and build our tree. 408 */ 409 for (i = 0; scopes[i] != NULL; i++) { 410 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 411 as->as_name = scopes[i]; 412 TAILQ_INIT(&as->as_devnodes); 413 414 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 415 416 state.scope = as; 417 418 if (AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 419 &parent) == AE_OK) { 420 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 421 acpi_make_devnode, &state, NULL); 422 } 423 424 /* Now, for this namespace, try and attach the devices. */ 425 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 426 aa.aa_node = ad; 427 aa.aa_iot = sc->sc_iot; 428 aa.aa_memt = sc->sc_memt; 429 aa.aa_pc = sc->sc_pc; 430 aa.aa_pciflags = sc->sc_pciflags; 431 aa.aa_ic = sc->sc_ic; 432 433 if (ad->ad_devinfo.Type == ACPI_TYPE_DEVICE) { 434 /* 435 * XXX We only attach devices which are: 436 * 437 * - present 438 * - enabled 439 * - functioning properly 440 * 441 * However, if enabled, it's decoding resources, 442 * so we should claim them, if possible. 443 * Requires changes to bus_space(9). 444 */ 445 if ((ad->ad_devinfo.Valid & ACPI_VALID_STA) == 446 ACPI_VALID_STA && 447 (ad->ad_devinfo.CurrentStatus & 448 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 449 ACPI_STA_DEV_OK)) != 450 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 451 ACPI_STA_DEV_OK)) 452 continue; 453 454 /* 455 * XXX Same problem as above... 456 */ 457 if ((ad->ad_devinfo.Valid & ACPI_VALID_HID) 458 == 0) 459 continue; 460 } 461 462 ad->ad_device = config_found(&sc->sc_dev, 463 &aa, acpi_print); 464 } 465 } 466 } 467 468 #ifdef ACPI_ACTIVATE_DEV 469 static void 470 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO *di) 471 { 472 ACPI_STATUS rv; 473 474 #ifdef ACPI_DEBUG 475 printf("acpi_activate_device: %s, old status=%x\n", 476 di->HardwareId, di->CurrentStatus); 477 #endif 478 479 rv = acpi_allocate_resources(handle); 480 if (ACPI_FAILURE(rv)) { 481 printf("acpi: activate failed for %s\n", di->HardwareId); 482 } else { 483 printf("acpi: activated %s\n", di->HardwareId); 484 } 485 486 #ifdef ACPI_DEBUG 487 (void)AcpiGetObjectInfo(handle, di); 488 printf("acpi_activate_device: %s, new status=%x\n", 489 di->HardwareId, di->CurrentStatus); 490 #endif 491 } 492 #endif /* ACPI_ACTIVATE_DEV */ 493 494 /* 495 * acpi_make_devnode: 496 * 497 * Make an ACPI devnode. 498 */ 499 ACPI_STATUS 500 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 501 void **status) 502 { 503 struct acpi_make_devnode_state *state = context; 504 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 505 struct acpi_softc *sc = state->softc; 506 #endif 507 struct acpi_scope *as = state->scope; 508 struct acpi_devnode *ad; 509 ACPI_DEVICE_INFO devinfo; 510 ACPI_OBJECT_TYPE type; 511 ACPI_STATUS rv; 512 513 if (AcpiGetType(handle, &type) == AE_OK) { 514 rv = AcpiGetObjectInfo(handle, &devinfo); 515 if (rv != AE_OK) { 516 #ifdef ACPI_DEBUG 517 printf("%s: AcpiGetObjectInfo failed\n", 518 sc->sc_dev.dv_xname); 519 #endif 520 goto out; /* XXX why return OK */ 521 } 522 523 switch (type) { 524 case ACPI_TYPE_DEVICE: 525 #ifdef ACPI_ACTIVATE_DEV 526 if ((devinfo.Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 527 (ACPI_VALID_STA|ACPI_VALID_HID) && 528 (devinfo.CurrentStatus & 529 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 530 ACPI_STA_DEV_PRESENT) { 531 acpi_activate_device(handle, &devinfo); 532 533 /* Update devinfo. */ 534 rv = AcpiGetObjectInfo(handle, &devinfo); 535 if (rv != AE_OK) 536 goto out; 537 } 538 539 /* FALLTHROUGH */ 540 #endif 541 542 case ACPI_TYPE_PROCESSOR: 543 case ACPI_TYPE_THERMAL: 544 case ACPI_TYPE_POWER: 545 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 546 if (ad == NULL) 547 return (AE_NO_MEMORY); 548 549 ad->ad_devinfo = devinfo; 550 ad->ad_handle = handle; 551 ad->ad_level = level; 552 ad->ad_scope = as; 553 ad->ad_type = type; 554 555 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 556 557 if ((ad->ad_devinfo.Valid & ACPI_VALID_HID) == 0) 558 goto out; 559 560 #ifdef ACPI_EXTRA_DEBUG 561 printf("%s: HID %s found in scope %s level %d\n", 562 sc->sc_dev.dv_xname, ad->ad_devinfo.HardwareId, 563 as->as_name, ad->ad_level); 564 if (ad->ad_devinfo.Valid & ACPI_VALID_UID) 565 printf(" UID %s\n", 566 ad->ad_devinfo.UniqueId); 567 if (ad->ad_devinfo.Valid & ACPI_VALID_ADR) 568 printf(" ADR 0x%016qx\n", 569 ad->ad_devinfo.Address); 570 if (ad->ad_devinfo.Valid & ACPI_VALID_STA) 571 printf(" STA 0x%08x\n", 572 ad->ad_devinfo.CurrentStatus); 573 #endif 574 } 575 } 576 out: 577 return (AE_OK); 578 } 579 580 /* 581 * acpi_print: 582 * 583 * Autoconfiguration print routine. 584 */ 585 int 586 acpi_print(void *aux, const char *pnp) 587 { 588 struct acpi_attach_args *aa = aux; 589 590 if (pnp) { 591 if (aa->aa_node->ad_devinfo.Valid & ACPI_VALID_HID) { 592 char *pnpstr = aa->aa_node->ad_devinfo.HardwareId; 593 char *str; 594 595 aprint_normal("%s ", pnpstr); 596 if (acpi_eval_string(aa->aa_node->ad_handle, 597 "_STR", &str) == AE_OK) { 598 aprint_normal("[%s] ", str); 599 AcpiOsFree(str); 600 } 601 #ifdef ACPIVERBOSE 602 else { 603 int i; 604 605 for (i = 0; i < sizeof(acpi_knowndevs) / 606 sizeof(acpi_knowndevs[0]); i++) { 607 if (strcmp(acpi_knowndevs[i].pnp, 608 pnpstr) == 0) { 609 printf("[%s] ", 610 acpi_knowndevs[i].str); 611 } 612 } 613 } 614 615 #endif 616 } else { 617 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 618 AcpiUtGetTypeName(aa->aa_node->ad_devinfo.Type), 619 aa->aa_node->ad_devinfo.Type); 620 } 621 aprint_normal("at %s", pnp); 622 } else { 623 if (aa->aa_node->ad_devinfo.Valid & ACPI_VALID_HID) { 624 aprint_normal(" (%s", aa->aa_node->ad_devinfo.HardwareId); 625 if (aa->aa_node->ad_devinfo.Valid & ACPI_VALID_UID) { 626 char *uid; 627 628 if (aa->aa_node->ad_devinfo.UniqueId[0] == '\0') 629 uid = "<null>"; 630 else 631 uid = aa->aa_node->ad_devinfo.UniqueId; 632 aprint_normal("-%s", uid); 633 } 634 aprint_normal(")"); 635 } 636 } 637 638 return (UNCONF); 639 } 640 641 /***************************************************************************** 642 * ACPI fixed-hardware feature handlers 643 *****************************************************************************/ 644 645 UINT32 acpi_fixed_button_handler(void *); 646 void acpi_fixed_button_pressed(void *); 647 648 /* 649 * acpi_enable_fixed_events: 650 * 651 * Enable any fixed-hardware feature handlers. 652 */ 653 void 654 acpi_enable_fixed_events(struct acpi_softc *sc) 655 { 656 static int beenhere; 657 ACPI_STATUS rv; 658 659 KASSERT(beenhere == 0); 660 beenhere = 1; 661 662 /* 663 * Check for fixed-hardware buttons. 664 */ 665 666 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 667 printf("%s: fixed-feature power button present\n", 668 sc->sc_dev.dv_xname); 669 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 670 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 671 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 672 printf("%s: unable to register fixed power button " 673 "with sysmon\n", sc->sc_dev.dv_xname); 674 } else { 675 rv = AcpiInstallFixedEventHandler( 676 ACPI_EVENT_POWER_BUTTON, 677 acpi_fixed_button_handler, &sc->sc_smpsw_power); 678 if (rv != AE_OK) { 679 printf("%s: unable to install handler for " 680 "fixed power button: %d\n", 681 sc->sc_dev.dv_xname, rv); 682 } 683 } 684 } 685 686 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 687 printf("%s: fixed-feature sleep button present\n", 688 sc->sc_dev.dv_xname); 689 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 690 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 691 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 692 printf("%s: unable to register fixed sleep button " 693 "with sysmon\n", sc->sc_dev.dv_xname); 694 } else { 695 rv = AcpiInstallFixedEventHandler( 696 ACPI_EVENT_SLEEP_BUTTON, 697 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 698 if (rv != AE_OK) { 699 printf("%s: unable to install handler for " 700 "fixed sleep button: %d\n", 701 sc->sc_dev.dv_xname, rv); 702 } 703 } 704 } 705 } 706 707 /* 708 * acpi_fixed_button_handler: 709 * 710 * Event handler for the fixed buttons. 711 */ 712 UINT32 713 acpi_fixed_button_handler(void *context) 714 { 715 struct sysmon_pswitch *smpsw = context; 716 int rv; 717 718 #ifdef ACPI_BUT_DEBUG 719 printf("%s: fixed button handler\n", smpsw->smpsw_name); 720 #endif 721 722 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 723 acpi_fixed_button_pressed, smpsw); 724 if (rv != AE_OK) 725 printf("%s: WARNING: unable to queue fixed button pressed " 726 "callback: %d\n", smpsw->smpsw_name, rv); 727 728 return (ACPI_INTERRUPT_HANDLED); 729 } 730 731 /* 732 * acpi_fixed_button_pressed: 733 * 734 * Deal with a fixed button being pressed. 735 */ 736 void 737 acpi_fixed_button_pressed(void *context) 738 { 739 struct sysmon_pswitch *smpsw = context; 740 741 #ifdef ACPI_BUT_DEBUG 742 printf("%s: fixed button pressed, calling sysmon\n", 743 smpsw->smpsw_name); 744 #endif 745 746 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 747 } 748 749 /***************************************************************************** 750 * ACPI utility routines. 751 *****************************************************************************/ 752 753 /* 754 * acpi_eval_integer: 755 * 756 * Evaluate an integer object. 757 */ 758 ACPI_STATUS 759 acpi_eval_integer(ACPI_HANDLE handle, char *path, int *valp) 760 { 761 ACPI_STATUS rv; 762 ACPI_BUFFER buf; 763 ACPI_OBJECT param; 764 765 if (handle == NULL) 766 handle = ACPI_ROOT_OBJECT; 767 768 buf.Pointer = ¶m; 769 buf.Length = sizeof(param); 770 771 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 772 if (rv == AE_OK) 773 *valp = param.Integer.Value; 774 775 return (rv); 776 } 777 778 /* 779 * acpi_eval_string: 780 * 781 * Evaluate a (Unicode) string object. 782 */ 783 ACPI_STATUS 784 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 785 { 786 ACPI_STATUS rv; 787 ACPI_BUFFER buf; 788 ACPI_OBJECT *param; 789 790 if (handle == NULL) 791 handle = ACPI_ROOT_OBJECT; 792 793 buf.Pointer = NULL; 794 buf.Length = ACPI_ALLOCATE_BUFFER; 795 796 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 797 if (rv == AE_OK) { 798 param = buf.Pointer; 799 char *ptr = param->String.Pointer; 800 size_t len = param->String.Length; 801 if ((*stringp = AcpiOsAllocate(len)) == NULL) 802 rv = AE_NO_MEMORY; 803 else 804 (void)memcpy(*stringp, ptr, len); 805 AcpiOsFree(param); 806 } 807 808 return (rv); 809 } 810 811 812 /* 813 * acpi_eval_struct: 814 * 815 * Evaluate a more complex structure. 816 * Caller must free buf.Pointer by AcpiOsFree(). 817 */ 818 ACPI_STATUS 819 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 820 { 821 ACPI_STATUS rv; 822 823 if (handle == NULL) 824 handle = ACPI_ROOT_OBJECT; 825 826 bufp->Pointer = NULL; 827 bufp->Length = ACPI_ALLOCATE_BUFFER; 828 829 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 830 831 return (rv); 832 } 833 834 /* 835 * acpi_get: 836 * 837 * Fetch data info the specified (empty) ACPI buffer. 838 * Caller must free buf.Pointer by AcpiOsFree(). 839 */ 840 ACPI_STATUS 841 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 842 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 843 { 844 buf->Pointer = NULL; 845 buf->Length = ACPI_ALLOCATE_BUFFER; 846 847 return ((*getit)(handle, buf)); 848 } 849 850 851 /* 852 * acpi_acquire_global_lock: 853 * 854 * Acquire global lock, with sleeping appropriately. 855 */ 856 #define ACQUIRE_WAIT 1000 857 858 ACPI_STATUS 859 acpi_acquire_global_lock(UINT32 *handle) 860 { 861 ACPI_STATUS status; 862 UINT32 h; 863 int s; 864 865 s = splhigh(); 866 simple_lock(&acpi_slock); 867 while (acpi_locked) 868 ltsleep(&acpi_slock, PVM, "acpi_lock", 0, &acpi_slock); 869 acpi_locked = 1; 870 simple_unlock(&acpi_slock); 871 splx(s); 872 status = AcpiAcquireGlobalLock(ACQUIRE_WAIT, &h); 873 if (ACPI_SUCCESS(status)) 874 *handle = h; 875 else { 876 printf("acpi: cannot acquire lock. status=0x%X\n", status); 877 s = splhigh(); 878 simple_lock(&acpi_slock); 879 acpi_locked = 0; 880 simple_unlock(&acpi_slock); 881 splx(s); 882 } 883 884 return (status); 885 } 886 887 void 888 acpi_release_global_lock(UINT32 handle) 889 { 890 ACPI_STATUS status; 891 int s; 892 893 if (!acpi_locked) { 894 printf("acpi: not locked.\n"); 895 return; 896 } 897 898 status = AcpiReleaseGlobalLock(handle); 899 if (ACPI_FAILURE(status)) { 900 printf("acpi: AcpiReleaseGlobalLock failed. status=0x%X\n", 901 status); 902 return; 903 } 904 905 s = splhigh(); 906 simple_lock(&acpi_slock); 907 acpi_locked = 0; 908 simple_unlock(&acpi_slock); 909 splx(s); 910 wakeup(&acpi_slock); 911 } 912 913 int 914 acpi_is_global_locked(void) 915 { 916 return (acpi_locked); 917 } 918 919 920 921 /***************************************************************************** 922 * ACPI sleep support. 923 *****************************************************************************/ 924 925 static int 926 is_available_state(struct acpi_softc *sc, int state) 927 { 928 UINT8 type_a, type_b; 929 930 return (ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 931 &type_a, &type_b))); 932 } 933 934 /* 935 * acpi_enter_sleep_state: 936 * 937 * enter to the specified sleep state. 938 */ 939 940 ACPI_STATUS 941 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 942 { 943 int s; 944 ACPI_STATUS ret = AE_OK; 945 946 switch (state) { 947 case ACPI_STATE_S0: 948 break; 949 case ACPI_STATE_S1: 950 case ACPI_STATE_S2: 951 case ACPI_STATE_S3: 952 case ACPI_STATE_S4: 953 if (!is_available_state(sc, state)) { 954 printf("acpi: cannot enter the sleep state (%d).\n", 955 state); 956 break; 957 } 958 ret = AcpiEnterSleepStatePrep(state); 959 if (ACPI_FAILURE(ret)) { 960 printf("acpi: failed preparing to sleep (%s)\n", 961 AcpiFormatException(ret)); 962 break; 963 } 964 if (state==ACPI_STATE_S1) { 965 /* just enter the state */ 966 acpi_md_OsDisableInterrupt(); 967 AcpiEnterSleepState((UINT8)state); 968 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 969 } else { 970 /* XXX: powerhooks(9) framework is too poor to 971 * support ACPI sleep state... 972 */ 973 dopowerhooks(PWR_SOFTSUSPEND); 974 s = splhigh(); 975 dopowerhooks(PWR_SUSPEND); 976 acpi_md_sleep(state); 977 dopowerhooks(PWR_RESUME); 978 splx(s); 979 dopowerhooks(PWR_SOFTRESUME); 980 if (state==ACPI_STATE_S4) 981 AcpiEnable(); 982 } 983 AcpiLeaveSleepState((UINT8)state); 984 break; 985 case ACPI_STATE_S5: 986 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 987 if (ACPI_FAILURE(ret)) { 988 printf("acpi: failed preparing to sleep (%s)\n", 989 AcpiFormatException(ret)); 990 break; 991 } 992 acpi_md_OsDisableInterrupt(); 993 AcpiEnterSleepState(ACPI_STATE_S5); 994 printf("WARNING: powerdown failed!\n"); 995 break; 996 } 997 998 return (ret); 999 } 1000 1001 #ifdef ACPI_PCI_FIXUP 1002 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 1003 /* 1004 * acpi_pci_fixup: 1005 * 1006 * Set up PCI devices that BIOS didn't handle right. 1007 * Iterate through all devices and try to get the _PTR 1008 * (PCI Routing Table). If it exists then make sure all 1009 * interrupt links that it uses are working. 1010 */ 1011 void 1012 acpi_pci_fixup(struct acpi_softc *sc) 1013 { 1014 ACPI_HANDLE parent; 1015 1016 #ifdef ACPI_DEBUG 1017 printf("acpi_pci_fixup starts:\n"); 1018 #endif 1019 if (AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent) != AE_OK) 1020 return; 1021 sc->sc_pci_bus = 0; 1022 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1023 acpi_pci_fixup_bus, sc, NULL); 1024 } 1025 1026 static ACPI_HANDLE 1027 acpi_get_node(char *name) 1028 { 1029 ACPI_NAMESPACE_NODE *ObjDesc; 1030 ACPI_STATUS Status; 1031 1032 Status = AcpiNsGetNodeByPath(name, NULL, 0, &ObjDesc); 1033 if (ACPI_FAILURE (Status)) { 1034 printf("acpi_get_node: could not find: %s\n", 1035 AcpiFormatException (Status)); 1036 return NULL; 1037 } 1038 return ObjDesc; 1039 } 1040 1041 static uint 1042 acpi_get_intr(ACPI_HANDLE handle) 1043 { 1044 ACPI_BUFFER ret; 1045 ACPI_STATUS rv; 1046 ACPI_RESOURCE *res; 1047 ACPI_RESOURCE_IRQ *irq; 1048 uint intr; 1049 1050 intr = -1; 1051 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1052 if (ACPI_FAILURE(rv)) 1053 return (intr); 1054 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1055 res = ACPI_NEXT_RESOURCE(res)) { 1056 if (res->Id == ACPI_RSTYPE_IRQ) { 1057 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1058 if (irq->NumberOfInterrupts == 1) 1059 intr = irq->Interrupts[0]; 1060 break; 1061 } 1062 } 1063 AcpiOsFree(ret.Pointer); 1064 return (intr); 1065 } 1066 1067 static void 1068 acpi_pci_set_line(int bus, int dev, int pin, int line) 1069 { 1070 ACPI_STATUS err; 1071 ACPI_PCI_ID pid; 1072 UINT32 intr, id, bhlc; 1073 int func, nfunc; 1074 1075 pid.Bus = bus; 1076 pid.Device = dev; 1077 pid.Function = 0; 1078 1079 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1080 if (err) 1081 return; 1082 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1083 nfunc = 8; 1084 else 1085 nfunc = 1; 1086 1087 for (func = 0; func < nfunc; func++) { 1088 pid.Function = func; 1089 1090 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1091 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1092 PCI_VENDOR(id) == 0) 1093 continue; 1094 1095 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1096 &intr, 32); 1097 if (err) { 1098 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1099 return; 1100 } 1101 if (pin == PCI_INTERRUPT_PIN(intr) && 1102 line != PCI_INTERRUPT_LINE(intr)) { 1103 #ifdef ACPI_DEBUG 1104 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1105 bus, dev, func, 1106 pin + '@', PCI_INTERRUPT_LINE(intr), 1107 line); 1108 #endif 1109 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1110 PCI_INTERRUPT_LINE_SHIFT); 1111 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1112 err = AcpiOsWritePciConfiguration(&pid, 1113 PCI_INTERRUPT_REG, intr, 32); 1114 if (err) { 1115 printf("AcpiOsWritePciConfiguration failed" 1116 " %d\n", err); 1117 return; 1118 } 1119 } 1120 } 1121 } 1122 1123 ACPI_STATUS 1124 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1125 void **status) 1126 { 1127 struct acpi_softc *sc = context; 1128 ACPI_STATUS rv; 1129 ACPI_BUFFER buf; 1130 UINT8 *Buffer; 1131 ACPI_PCI_ROUTING_TABLE *PrtElement; 1132 ACPI_HANDLE link; 1133 uint line; 1134 ACPI_NAMESPACE_NODE *node; 1135 ACPI_INTEGER val; 1136 1137 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1138 if (ACPI_FAILURE(rv)) 1139 return (AE_OK); 1140 1141 /* 1142 * If at level 1, this is a PCI root bus. Try the _BBN method 1143 * to get the right PCI bus numbering for the following 1144 * busses (this is a depth-first walk). It may fail, 1145 * for example if there's only one root bus, but that 1146 * case should be ok, so we'll ignore that. 1147 */ 1148 if (level == 1) { 1149 node = AcpiNsMapHandleToNode(handle); 1150 rv = AcpiUtEvaluateNumericObject(METHOD_NAME__BBN, node, &val); 1151 if (!ACPI_FAILURE(rv)) { 1152 #ifdef ACPI_DEBUG 1153 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1154 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1155 ACPI_LOWORD(val)); 1156 #endif 1157 sc->sc_pci_bus = ACPI_LOWORD(val); 1158 } 1159 } 1160 1161 1162 #ifdef ACPI_DEBUG 1163 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1164 sc->sc_pci_bus, level); 1165 #endif 1166 1167 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1168 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1169 if (PrtElement->Length == 0) 1170 break; 1171 if (PrtElement->Source[0] == 0) 1172 continue; 1173 1174 link = acpi_get_node(PrtElement->Source); 1175 if (link == NULL) 1176 continue; 1177 line = acpi_get_intr(link); 1178 if (line == -1) { 1179 #ifdef ACPI_DEBUG 1180 printf("%s: fixing up intr link %s\n", 1181 sc->sc_dev.dv_xname, PrtElement->Source); 1182 #endif 1183 rv = acpi_allocate_resources(link); 1184 if (ACPI_FAILURE(rv)) { 1185 printf("%s: interrupt allocation failed %s\n", 1186 sc->sc_dev.dv_xname, PrtElement->Source); 1187 continue; 1188 } 1189 line = acpi_get_intr(link); 1190 if (line == -1) { 1191 printf("%s: get intr failed %s\n", 1192 sc->sc_dev.dv_xname, PrtElement->Source); 1193 continue; 1194 } 1195 } 1196 1197 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1198 PrtElement->Pin + 1, line); 1199 } 1200 1201 sc->sc_pci_bus++; 1202 1203 AcpiOsFree(buf.Pointer); 1204 return (AE_OK); 1205 } 1206 #endif /* ACPI_PCI_FIXUP */ 1207 1208 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1209 /* XXX This very incomplete */ 1210 ACPI_STATUS 1211 acpi_allocate_resources(ACPI_HANDLE handle) 1212 { 1213 ACPI_BUFFER bufp, bufc, bufn; 1214 ACPI_RESOURCE *resp, *resc, *resn; 1215 ACPI_RESOURCE_IRQ *irq; 1216 ACPI_STATUS rv; 1217 uint delta; 1218 1219 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1220 if (ACPI_FAILURE(rv)) 1221 goto out; 1222 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1223 if (ACPI_FAILURE(rv)) { 1224 goto out1; 1225 } 1226 1227 bufn.Length = 1000; 1228 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1229 resp = bufp.Pointer; 1230 resc = bufc.Pointer; 1231 while (resc->Id != ACPI_RSTYPE_END_TAG && 1232 resp->Id != ACPI_RSTYPE_END_TAG) { 1233 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1234 resp = ACPI_NEXT_RESOURCE(resp); 1235 if (resp->Id == ACPI_RSTYPE_END_TAG) 1236 break; 1237 /* Found identical Id */ 1238 resn->Id = resc->Id; 1239 switch (resc->Id) { 1240 case ACPI_RSTYPE_IRQ: 1241 memcpy(&resn->Data, &resp->Data, 1242 sizeof(ACPI_RESOURCE_IRQ)); 1243 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1244 irq->Interrupts[0] = 1245 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1246 Interrupts[irq->NumberOfInterrupts-1]; 1247 irq->NumberOfInterrupts = 1; 1248 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1249 break; 1250 case ACPI_RSTYPE_IO: 1251 memcpy(&resn->Data, &resp->Data, 1252 sizeof(ACPI_RESOURCE_IO)); 1253 resn->Length = resp->Length; 1254 break; 1255 default: 1256 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1257 rv = AE_BAD_DATA; 1258 goto out2; 1259 } 1260 resc = ACPI_NEXT_RESOURCE(resc); 1261 resn = ACPI_NEXT_RESOURCE(resn); 1262 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1263 if (delta >= 1264 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1265 bufn.Length *= 2; 1266 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1267 M_ACPI, M_WAITOK); 1268 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1269 } 1270 } 1271 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1272 printf("acpi_allocate_resources: resc not exhausted\n"); 1273 rv = AE_BAD_DATA; 1274 goto out3; 1275 } 1276 1277 resn->Id = ACPI_RSTYPE_END_TAG; 1278 rv = AcpiSetCurrentResources(handle, &bufn); 1279 if (ACPI_FAILURE(rv)) { 1280 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1281 AcpiFormatException(rv)); 1282 } 1283 1284 out3: 1285 free(bufn.Pointer, M_ACPI); 1286 out2: 1287 AcpiOsFree(bufc.Pointer); 1288 out1: 1289 AcpiOsFree(bufp.Pointer); 1290 out: 1291 return rv; 1292 } 1293 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1294
Indexes created Mon Sep 22 21:09:42 GMT 2025