acpi.c revision 1.55
1 /* $NetBSD: acpi.c,v 1.55 2003/11/03 17:24:22 mycroft 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 1.55 2003/11/03 17:24:22 mycroft 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/acpi/acpica/Subsystem/acnamesp.h> /* AcpiNsGetNodeByPath() */ 101 #include <dev/pci/pcidevs.h> 102 #endif 103 104 MALLOC_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 114 115 int acpi_dbgr = 0x00; 116 #endif 117 118 int acpi_match(struct device *, struct cfdata *, void *); 119 void acpi_attach(struct device *, struct device *, void *); 120 121 int acpi_print(void *aux, const char *); 122 123 extern struct cfdriver acpi_cd; 124 125 CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 126 acpi_match, acpi_attach, NULL, NULL); 127 128 /* 129 * This is a flag we set when the ACPI subsystem is active. Machine 130 * dependent code may wish to skip other steps (such as attaching 131 * subsystems that ACPI supercedes) when ACPI is active. 132 */ 133 int acpi_active; 134 135 /* 136 * Pointer to the ACPI subsystem's state. There can be only 137 * one ACPI instance. 138 */ 139 struct acpi_softc *acpi_softc; 140 141 /* 142 * Locking stuff. 143 */ 144 static struct simplelock acpi_slock; 145 static int acpi_locked; 146 147 /* 148 * Prototypes. 149 */ 150 void acpi_shutdown(void *); 151 ACPI_STATUS acpi_disable(struct acpi_softc *sc); 152 void acpi_build_tree(struct acpi_softc *); 153 ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 154 155 void acpi_enable_fixed_events(struct acpi_softc *); 156 #ifdef ACPI_PCI_FIXUP 157 void acpi_pci_fixup(struct acpi_softc *); 158 #endif 159 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 160 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE handle); 161 #endif 162 163 /* 164 * acpi_probe: 165 * 166 * Probe for ACPI support. This is called by the 167 * machine-dependent ACPI front-end. All of the 168 * actual work is done by ACPICA. 169 * 170 * NOTE: This is not an autoconfiguration interface function. 171 */ 172 int 173 acpi_probe(void) 174 { 175 static int beenhere; 176 ACPI_STATUS rv; 177 178 if (beenhere != 0) 179 panic("acpi_probe: ACPI has already been probed"); 180 beenhere = 1; 181 182 simple_lock_init(&acpi_slock); 183 acpi_locked = 0; 184 185 /* 186 * Start up ACPICA. 187 */ 188 #ifdef ACPI_DEBUGGER 189 if (acpi_dbgr & ACPI_DBGR_INIT) 190 acpi_osd_debugger(); 191 #endif 192 193 rv = AcpiInitializeSubsystem(); 194 if (rv != AE_OK) { 195 printf("ACPI: unable to initialize ACPICA: %s\n", 196 AcpiFormatException(rv)); 197 return (0); 198 } 199 200 #ifdef ACPI_DEBUGGER 201 if (acpi_dbgr & ACPI_DBGR_TABLES) 202 acpi_osd_debugger(); 203 #endif 204 205 rv = AcpiLoadTables(); 206 if (rv != AE_OK) { 207 printf("ACPI: unable to load tables: %s\n", 208 AcpiFormatException(rv)); 209 return (0); 210 } 211 212 /* 213 * Looks like we have ACPI! 214 */ 215 216 return (1); 217 } 218 219 /* 220 * acpi_match: 221 * 222 * Autoconfiguration `match' routine. 223 */ 224 int 225 acpi_match(struct device *parent, struct cfdata *match, void *aux) 226 { 227 struct acpibus_attach_args *aa = aux; 228 229 if (strcmp(aa->aa_busname, acpi_cd.cd_name) != 0) 230 return (0); 231 232 /* 233 * XXX Check other locators? Hard to know -- machine 234 * dependent code has already checked for the presence 235 * of ACPI by calling acpi_probe(), so I suppose we 236 * don't really have to do anything else. 237 */ 238 return (1); 239 } 240 241 /* 242 * acpi_attach: 243 * 244 * Autoconfiguration `attach' routine. Finish initializing 245 * ACPICA (some initialization was done in acpi_probe(), 246 * which was required to check for the presence of ACPI), 247 * and enable the ACPI subsystem. 248 */ 249 void 250 acpi_attach(struct device *parent, struct device *self, void *aux) 251 { 252 struct acpi_softc *sc = (void *) self; 253 struct acpibus_attach_args *aa = aux; 254 ACPI_STATUS rv; 255 256 printf("\n"); 257 258 if (acpi_softc != NULL) 259 panic("acpi_attach: ACPI has already been attached"); 260 261 sysmon_power_settype("acpi"); 262 263 printf("%s: using Intel ACPI CA subsystem version %08x\n", 264 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 265 266 printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 267 sc->sc_dev.dv_xname, 268 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 269 AcpiGbl_XSDT->OemRevision, 270 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 271 272 sc->sc_quirks = acpi_find_quirks(); 273 274 sc->sc_iot = aa->aa_iot; 275 sc->sc_memt = aa->aa_memt; 276 sc->sc_pc = aa->aa_pc; 277 sc->sc_pciflags = aa->aa_pciflags; 278 sc->sc_ic = aa->aa_ic; 279 280 acpi_softc = sc; 281 282 /* 283 * Bring ACPI on-line. 284 */ 285 #ifdef ACPI_DEBUGGER 286 if (acpi_dbgr & ACPI_DBGR_ENABLE) 287 acpi_osd_debugger(); 288 #endif 289 290 rv = AcpiEnableSubsystem(0); 291 if (rv != AE_OK) { 292 printf("%s: unable to enable ACPI: %s\n", 293 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 294 return; 295 } 296 rv = AcpiInitializeObjects(0); 297 if (rv != AE_OK) { 298 printf("%s: unable to initialize ACPI objects: %s\n", 299 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 300 return; 301 } 302 acpi_active = 1; 303 304 /* Our current state is "awake". */ 305 sc->sc_sleepstate = ACPI_STATE_S0; 306 307 /* Show SCI interrupt. */ 308 if (AcpiGbl_FADT != NULL) 309 printf("%s: SCI interrupting at int %d\n", 310 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 311 /* 312 * Check for fixed-hardware features. 313 */ 314 acpi_enable_fixed_events(sc); 315 316 /* 317 * Fix up PCI devices. 318 */ 319 #ifdef ACPI_PCI_FIXUP 320 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 321 acpi_pci_fixup(sc); 322 #endif 323 324 /* 325 * Scan the namespace and build our device tree. 326 */ 327 #ifdef ACPI_DEBUGGER 328 if (acpi_dbgr & ACPI_DBGR_PROBE) 329 acpi_osd_debugger(); 330 #endif 331 acpi_md_callback((struct device *)sc); 332 acpi_build_tree(sc); 333 334 /* 335 * Register a shutdown hook that disables certain ACPI 336 * events that might happen and confuse us while we're 337 * trying to shut down. 338 */ 339 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 340 if (sc->sc_sdhook == NULL) 341 printf("%s: WARNING: unable to register shutdown hook\n", 342 sc->sc_dev.dv_xname); 343 344 #ifdef ACPI_DEBUGGER 345 if (acpi_dbgr & ACPI_DBGR_RUNNING) 346 acpi_osd_debugger(); 347 #endif 348 } 349 350 /* 351 * acpi_shutdown: 352 * 353 * Shutdown hook for ACPI -- disable some events that 354 * might confuse us. 355 */ 356 void 357 acpi_shutdown(void *arg) 358 { 359 struct acpi_softc *sc = arg; 360 361 if (acpi_disable(sc) != AE_OK) 362 printf("%s: WARNING: unable to disable ACPI\n", 363 sc->sc_dev.dv_xname); 364 } 365 366 /* 367 * acpi_disable: 368 * 369 * Disable ACPI. 370 */ 371 ACPI_STATUS 372 acpi_disable(struct acpi_softc *sc) 373 { 374 ACPI_STATUS rv = AE_OK; 375 376 if (acpi_active) { 377 rv = AcpiDisable(); 378 if (rv == AE_OK) 379 acpi_active = 0; 380 } 381 return (rv); 382 } 383 384 struct acpi_make_devnode_state { 385 struct acpi_softc *softc; 386 struct acpi_scope *scope; 387 }; 388 389 /* 390 * acpi_build_tree: 391 * 392 * Scan relevant portions of the ACPI namespace and attach 393 * child devices. 394 */ 395 void 396 acpi_build_tree(struct acpi_softc *sc) 397 { 398 static const char *scopes[] = { 399 "\\_PR_", /* ACPI 1.0 processor namespace */ 400 "\\_SB_", /* system bus namespace */ 401 "\\_SI_", /* system idicator namespace */ 402 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 403 NULL, 404 }; 405 struct acpi_attach_args aa; 406 struct acpi_make_devnode_state state; 407 struct acpi_scope *as; 408 struct acpi_devnode *ad; 409 ACPI_HANDLE parent; 410 int i; 411 412 TAILQ_INIT(&sc->sc_scopes); 413 414 state.softc = sc; 415 416 /* 417 * Scan the namespace and build our tree. 418 */ 419 for (i = 0; scopes[i] != NULL; i++) { 420 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 421 as->as_name = scopes[i]; 422 TAILQ_INIT(&as->as_devnodes); 423 424 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 425 426 state.scope = as; 427 428 if (AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 429 &parent) == AE_OK) { 430 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 431 acpi_make_devnode, &state, NULL); 432 } 433 434 /* Now, for this namespace, try and attach the devices. */ 435 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 436 aa.aa_node = ad; 437 aa.aa_iot = sc->sc_iot; 438 aa.aa_memt = sc->sc_memt; 439 aa.aa_pc = sc->sc_pc; 440 aa.aa_pciflags = sc->sc_pciflags; 441 aa.aa_ic = sc->sc_ic; 442 443 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 444 /* 445 * XXX We only attach devices which are: 446 * 447 * - present 448 * - enabled 449 * - functioning properly 450 * 451 * However, if enabled, it's decoding resources, 452 * so we should claim them, if possible. 453 * Requires changes to bus_space(9). 454 */ 455 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 456 ACPI_VALID_STA && 457 (ad->ad_devinfo->CurrentStatus & 458 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 459 ACPI_STA_DEV_OK)) != 460 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 461 ACPI_STA_DEV_OK)) 462 continue; 463 464 /* 465 * XXX Same problem as above... 466 */ 467 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 468 == 0) 469 continue; 470 } 471 472 ad->ad_device = config_found(&sc->sc_dev, 473 &aa, acpi_print); 474 } 475 } 476 } 477 478 #ifdef ACPI_ACTIVATE_DEV 479 static void 480 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 481 { 482 ACPI_STATUS rv; 483 ACPI_BUFFER buf; 484 485 buf.Pointer = NULL; 486 buf.Length = ACPI_ALLOCATE_BUFFER; 487 488 #ifdef ACPI_DEBUG 489 printf("acpi_activate_device: %s, old status=%x\n", 490 (*di)->HardwareId.Value, (*di)->CurrentStatus); 491 #endif 492 493 rv = acpi_allocate_resources(handle); 494 if (ACPI_FAILURE(rv)) { 495 printf("acpi: activate failed for %s\n", 496 (*di)->HardwareId.Value); 497 } else { 498 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 499 } 500 501 (void)AcpiGetObjectInfo(handle, &buf); 502 AcpiOsFree(*di); 503 *di = buf.Pointer; 504 505 #ifdef ACPI_DEBUG 506 printf("acpi_activate_device: %s, new status=%x\n", 507 (*di)->HardwareId.Value, (*di)->CurrentStatus); 508 #endif 509 } 510 #endif /* ACPI_ACTIVATE_DEV */ 511 512 /* 513 * acpi_make_devnode: 514 * 515 * Make an ACPI devnode. 516 */ 517 ACPI_STATUS 518 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 519 void **status) 520 { 521 struct acpi_make_devnode_state *state = context; 522 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 523 struct acpi_softc *sc = state->softc; 524 #endif 525 struct acpi_scope *as = state->scope; 526 struct acpi_devnode *ad; 527 ACPI_OBJECT_TYPE type; 528 ACPI_BUFFER buf; 529 ACPI_DEVICE_INFO *devinfo; 530 ACPI_STATUS rv; 531 532 if (AcpiGetType(handle, &type) == AE_OK) { 533 buf.Pointer = NULL; 534 buf.Length = ACPI_ALLOCATE_BUFFER; 535 rv = AcpiGetObjectInfo(handle, &buf); 536 if (rv != AE_OK) { 537 #ifdef ACPI_DEBUG 538 printf("%s: AcpiGetObjectInfo failed: %s\n", 539 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 540 #endif 541 goto out; /* XXX why return OK */ 542 } 543 544 devinfo = buf.Pointer; 545 546 switch (type) { 547 case ACPI_TYPE_DEVICE: 548 #ifdef ACPI_ACTIVATE_DEV 549 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 550 (ACPI_VALID_STA|ACPI_VALID_HID) && 551 (devinfo->CurrentStatus & 552 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 553 ACPI_STA_DEV_PRESENT) 554 acpi_activate_device(handle, &devinfo); 555 556 /* FALLTHROUGH */ 557 #endif 558 559 case ACPI_TYPE_PROCESSOR: 560 case ACPI_TYPE_THERMAL: 561 case ACPI_TYPE_POWER: 562 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 563 if (ad == NULL) 564 return (AE_NO_MEMORY); 565 566 ad->ad_devinfo = devinfo; 567 ad->ad_handle = handle; 568 ad->ad_level = level; 569 ad->ad_scope = as; 570 ad->ad_type = type; 571 572 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 573 574 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 575 goto out; 576 577 #ifdef ACPI_EXTRA_DEBUG 578 printf("%s: HID %s found in scope %s level %d\n", 579 sc->sc_dev.dv_xname, 580 ad->ad_devinfo->HardwareId.Value, 581 as->as_name, ad->ad_level); 582 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 583 printf(" UID %s\n", 584 ad->ad_devinfo->UniqueId.Value); 585 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 586 printf(" ADR 0x%016qx\n", 587 ad->ad_devinfo->Address); 588 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 589 printf(" STA 0x%08x\n", 590 ad->ad_devinfo->CurrentStatus); 591 #endif 592 } 593 } 594 out: 595 return (AE_OK); 596 } 597 598 /* 599 * acpi_print: 600 * 601 * Autoconfiguration print routine. 602 */ 603 int 604 acpi_print(void *aux, const char *pnp) 605 { 606 struct acpi_attach_args *aa = aux; 607 608 if (pnp) { 609 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 610 char *pnpstr = 611 aa->aa_node->ad_devinfo->HardwareId.Value; 612 char *str; 613 614 aprint_normal("%s ", pnpstr); 615 if (acpi_eval_string(aa->aa_node->ad_handle, 616 "_STR", &str) == AE_OK) { 617 aprint_normal("[%s] ", str); 618 AcpiOsFree(str); 619 } 620 #ifdef ACPIVERBOSE 621 else { 622 int i; 623 624 for (i = 0; i < sizeof(acpi_knowndevs) / 625 sizeof(acpi_knowndevs[0]); i++) { 626 if (strcmp(acpi_knowndevs[i].pnp, 627 pnpstr) == 0) { 628 printf("[%s] ", 629 acpi_knowndevs[i].str); 630 } 631 } 632 } 633 634 #endif 635 } else { 636 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 637 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 638 aa->aa_node->ad_devinfo->Type); 639 } 640 aprint_normal("at %s", pnp); 641 } else { 642 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 643 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 644 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 645 char *uid; 646 647 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 648 if (uid[0] == '\0') 649 uid = "<null>"; 650 aprint_normal("-%s", uid); 651 } 652 aprint_normal(")"); 653 } 654 } 655 656 return (UNCONF); 657 } 658 659 /***************************************************************************** 660 * ACPI fixed-hardware feature handlers 661 *****************************************************************************/ 662 663 UINT32 acpi_fixed_button_handler(void *); 664 void acpi_fixed_button_pressed(void *); 665 666 /* 667 * acpi_enable_fixed_events: 668 * 669 * Enable any fixed-hardware feature handlers. 670 */ 671 void 672 acpi_enable_fixed_events(struct acpi_softc *sc) 673 { 674 static int beenhere; 675 ACPI_STATUS rv; 676 677 KASSERT(beenhere == 0); 678 beenhere = 1; 679 680 /* 681 * Check for fixed-hardware buttons. 682 */ 683 684 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 685 printf("%s: fixed-feature power button present\n", 686 sc->sc_dev.dv_xname); 687 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 688 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 689 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 690 printf("%s: unable to register fixed power button " 691 "with sysmon\n", sc->sc_dev.dv_xname); 692 } else { 693 rv = AcpiInstallFixedEventHandler( 694 ACPI_EVENT_POWER_BUTTON, 695 acpi_fixed_button_handler, &sc->sc_smpsw_power); 696 if (rv != AE_OK) { 697 printf("%s: unable to install handler for " 698 "fixed power button: %d\n", 699 sc->sc_dev.dv_xname, rv); 700 } 701 } 702 } 703 704 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 705 printf("%s: fixed-feature sleep button present\n", 706 sc->sc_dev.dv_xname); 707 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 708 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 709 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 710 printf("%s: unable to register fixed sleep button " 711 "with sysmon\n", sc->sc_dev.dv_xname); 712 } else { 713 rv = AcpiInstallFixedEventHandler( 714 ACPI_EVENT_SLEEP_BUTTON, 715 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 716 if (rv != AE_OK) { 717 printf("%s: unable to install handler for " 718 "fixed sleep button: %d\n", 719 sc->sc_dev.dv_xname, rv); 720 } 721 } 722 } 723 } 724 725 /* 726 * acpi_fixed_button_handler: 727 * 728 * Event handler for the fixed buttons. 729 */ 730 UINT32 731 acpi_fixed_button_handler(void *context) 732 { 733 struct sysmon_pswitch *smpsw = context; 734 int rv; 735 736 #ifdef ACPI_BUT_DEBUG 737 printf("%s: fixed button handler\n", smpsw->smpsw_name); 738 #endif 739 740 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 741 acpi_fixed_button_pressed, smpsw); 742 if (rv != AE_OK) 743 printf("%s: WARNING: unable to queue fixed button pressed " 744 "callback: %s\n", smpsw->smpsw_name, 745 AcpiFormatException(rv)); 746 747 return (ACPI_INTERRUPT_HANDLED); 748 } 749 750 /* 751 * acpi_fixed_button_pressed: 752 * 753 * Deal with a fixed button being pressed. 754 */ 755 void 756 acpi_fixed_button_pressed(void *context) 757 { 758 struct sysmon_pswitch *smpsw = context; 759 760 #ifdef ACPI_BUT_DEBUG 761 printf("%s: fixed button pressed, calling sysmon\n", 762 smpsw->smpsw_name); 763 #endif 764 765 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 766 } 767 768 /***************************************************************************** 769 * ACPI utility routines. 770 *****************************************************************************/ 771 772 /* 773 * acpi_eval_integer: 774 * 775 * Evaluate an integer object. 776 */ 777 ACPI_STATUS 778 acpi_eval_integer(ACPI_HANDLE handle, char *path, int *valp) 779 { 780 ACPI_STATUS rv; 781 ACPI_BUFFER buf; 782 ACPI_OBJECT param; 783 784 if (handle == NULL) 785 handle = ACPI_ROOT_OBJECT; 786 787 buf.Pointer = ¶m; 788 buf.Length = sizeof(param); 789 790 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 791 if (rv == AE_OK) 792 *valp = param.Integer.Value; 793 794 return (rv); 795 } 796 797 /* 798 * acpi_eval_string: 799 * 800 * Evaluate a (Unicode) string object. 801 */ 802 ACPI_STATUS 803 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 804 { 805 ACPI_STATUS rv; 806 ACPI_BUFFER buf; 807 808 if (handle == NULL) 809 handle = ACPI_ROOT_OBJECT; 810 811 buf.Pointer = NULL; 812 buf.Length = ACPI_ALLOCATE_BUFFER; 813 814 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 815 if (rv == AE_OK) { 816 ACPI_OBJECT *param = buf.Pointer; 817 char *ptr = param->String.Pointer; 818 size_t len = param->String.Length; 819 if ((*stringp = AcpiOsAllocate(len)) == NULL) 820 rv = AE_NO_MEMORY; 821 else 822 (void)memcpy(*stringp, ptr, len); 823 AcpiOsFree(param); 824 } 825 826 return (rv); 827 } 828 829 830 /* 831 * acpi_eval_struct: 832 * 833 * Evaluate a more complex structure. 834 * Caller must free buf.Pointer by AcpiOsFree(). 835 */ 836 ACPI_STATUS 837 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 838 { 839 ACPI_STATUS rv; 840 841 if (handle == NULL) 842 handle = ACPI_ROOT_OBJECT; 843 844 bufp->Pointer = NULL; 845 bufp->Length = ACPI_ALLOCATE_BUFFER; 846 847 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 848 849 return (rv); 850 } 851 852 /* 853 * acpi_get: 854 * 855 * Fetch data info the specified (empty) ACPI buffer. 856 * Caller must free buf.Pointer by AcpiOsFree(). 857 */ 858 ACPI_STATUS 859 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 860 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 861 { 862 buf->Pointer = NULL; 863 buf->Length = ACPI_ALLOCATE_BUFFER; 864 865 return ((*getit)(handle, buf)); 866 } 867 868 869 /* 870 * acpi_match_hid 871 * 872 * Match given ids against _HID and _CIDs 873 */ 874 int 875 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 876 { 877 int i; 878 879 while (*ids) { 880 if ((ad->Valid & ACPI_VALID_HID) && 881 strcmp(ad->HardwareId.Value, *ids) == 0) 882 return (1); 883 884 if (ad->Valid & ACPI_VALID_CID) { 885 for (i = 0; i < ad->CompatibilityId.Count; i++) { 886 if (strcmp(ad->CompatibilityId.Id[i].Value, *ids) == 0) 887 return (1); 888 } 889 } 890 ids++; 891 } 892 893 return (0); 894 } 895 896 897 /***************************************************************************** 898 * ACPI sleep support. 899 *****************************************************************************/ 900 901 static int 902 is_available_state(struct acpi_softc *sc, int state) 903 { 904 UINT8 type_a, type_b; 905 906 return (ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 907 &type_a, &type_b))); 908 } 909 910 /* 911 * acpi_enter_sleep_state: 912 * 913 * enter to the specified sleep state. 914 */ 915 916 ACPI_STATUS 917 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 918 { 919 int s; 920 ACPI_STATUS ret = AE_OK; 921 922 switch (state) { 923 case ACPI_STATE_S0: 924 break; 925 case ACPI_STATE_S1: 926 case ACPI_STATE_S2: 927 case ACPI_STATE_S3: 928 case ACPI_STATE_S4: 929 if (!is_available_state(sc, state)) { 930 printf("acpi: cannot enter the sleep state (%d).\n", 931 state); 932 break; 933 } 934 ret = AcpiEnterSleepStatePrep(state); 935 if (ACPI_FAILURE(ret)) { 936 printf("acpi: failed preparing to sleep (%s)\n", 937 AcpiFormatException(ret)); 938 break; 939 } 940 if (state==ACPI_STATE_S1) { 941 /* just enter the state */ 942 acpi_md_OsDisableInterrupt(); 943 AcpiEnterSleepState((UINT8)state); 944 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 945 } else { 946 /* XXX: powerhooks(9) framework is too poor to 947 * support ACPI sleep state... 948 */ 949 dopowerhooks(PWR_SOFTSUSPEND); 950 s = splhigh(); 951 dopowerhooks(PWR_SUSPEND); 952 acpi_md_sleep(state); 953 dopowerhooks(PWR_RESUME); 954 splx(s); 955 dopowerhooks(PWR_SOFTRESUME); 956 if (state==ACPI_STATE_S4) 957 AcpiEnable(); 958 } 959 AcpiLeaveSleepState((UINT8)state); 960 break; 961 case ACPI_STATE_S5: 962 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 963 if (ACPI_FAILURE(ret)) { 964 printf("acpi: failed preparing to sleep (%s)\n", 965 AcpiFormatException(ret)); 966 break; 967 } 968 acpi_md_OsDisableInterrupt(); 969 AcpiEnterSleepState(ACPI_STATE_S5); 970 printf("WARNING: powerdown failed!\n"); 971 break; 972 } 973 974 return (ret); 975 } 976 977 #ifdef ACPI_PCI_FIXUP 978 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 979 /* 980 * acpi_pci_fixup: 981 * 982 * Set up PCI devices that BIOS didn't handle right. 983 * Iterate through all devices and try to get the _PTR 984 * (PCI Routing Table). If it exists then make sure all 985 * interrupt links that it uses are working. 986 */ 987 void 988 acpi_pci_fixup(struct acpi_softc *sc) 989 { 990 ACPI_HANDLE parent; 991 992 #ifdef ACPI_DEBUG 993 printf("acpi_pci_fixup starts:\n"); 994 #endif 995 if (AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent) != AE_OK) 996 return; 997 sc->sc_pci_bus = 0; 998 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 999 acpi_pci_fixup_bus, sc, NULL); 1000 } 1001 1002 static ACPI_HANDLE 1003 acpi_get_node(char *name) 1004 { 1005 ACPI_NAMESPACE_NODE *ObjDesc; 1006 ACPI_STATUS Status; 1007 1008 Status = AcpiNsGetNodeByPath(name, NULL, 0, &ObjDesc); 1009 if (ACPI_FAILURE (Status)) { 1010 printf("acpi_get_node: could not find: %s\n", 1011 AcpiFormatException (Status)); 1012 return NULL; 1013 } 1014 return ObjDesc; 1015 } 1016 1017 static uint 1018 acpi_get_intr(ACPI_HANDLE handle) 1019 { 1020 ACPI_BUFFER ret; 1021 ACPI_STATUS rv; 1022 ACPI_RESOURCE *res; 1023 ACPI_RESOURCE_IRQ *irq; 1024 uint intr; 1025 1026 intr = -1; 1027 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1028 if (ACPI_FAILURE(rv)) 1029 return (intr); 1030 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1031 res = ACPI_NEXT_RESOURCE(res)) { 1032 if (res->Id == ACPI_RSTYPE_IRQ) { 1033 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1034 if (irq->NumberOfInterrupts == 1) 1035 intr = irq->Interrupts[0]; 1036 break; 1037 } 1038 } 1039 AcpiOsFree(ret.Pointer); 1040 return (intr); 1041 } 1042 1043 static void 1044 acpi_pci_set_line(int bus, int dev, int pin, int line) 1045 { 1046 ACPI_STATUS err; 1047 ACPI_PCI_ID pid; 1048 UINT32 intr, id, bhlc; 1049 int func, nfunc; 1050 1051 pid.Bus = bus; 1052 pid.Device = dev; 1053 pid.Function = 0; 1054 1055 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1056 if (err) 1057 return; 1058 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1059 nfunc = 8; 1060 else 1061 nfunc = 1; 1062 1063 for (func = 0; func < nfunc; func++) { 1064 pid.Function = func; 1065 1066 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1067 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1068 PCI_VENDOR(id) == 0) 1069 continue; 1070 1071 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1072 &intr, 32); 1073 if (err) { 1074 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1075 return; 1076 } 1077 if (pin == PCI_INTERRUPT_PIN(intr) && 1078 line != PCI_INTERRUPT_LINE(intr)) { 1079 #ifdef ACPI_DEBUG 1080 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1081 bus, dev, func, 1082 pin + '@', PCI_INTERRUPT_LINE(intr), 1083 line); 1084 #endif 1085 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1086 PCI_INTERRUPT_LINE_SHIFT); 1087 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1088 err = AcpiOsWritePciConfiguration(&pid, 1089 PCI_INTERRUPT_REG, intr, 32); 1090 if (err) { 1091 printf("AcpiOsWritePciConfiguration failed" 1092 " %d\n", err); 1093 return; 1094 } 1095 } 1096 } 1097 } 1098 1099 ACPI_STATUS 1100 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1101 void **status) 1102 { 1103 struct acpi_softc *sc = context; 1104 ACPI_STATUS rv; 1105 ACPI_BUFFER buf; 1106 UINT8 *Buffer; 1107 ACPI_PCI_ROUTING_TABLE *PrtElement; 1108 ACPI_HANDLE link; 1109 uint line; 1110 ACPI_NAMESPACE_NODE *node; 1111 ACPI_INTEGER val; 1112 1113 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1114 if (ACPI_FAILURE(rv)) 1115 return (AE_OK); 1116 1117 /* 1118 * If at level 1, this is a PCI root bus. Try the _BBN method 1119 * to get the right PCI bus numbering for the following 1120 * busses (this is a depth-first walk). It may fail, 1121 * for example if there's only one root bus, but that 1122 * case should be ok, so we'll ignore that. 1123 */ 1124 if (level == 1) { 1125 node = AcpiNsMapHandleToNode(handle); 1126 rv = AcpiUtEvaluateNumericObject(METHOD_NAME__BBN, node, &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 link = acpi_get_node(PrtElement->Source); 1151 if (link == NULL) 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 */ 1186 ACPI_STATUS 1187 acpi_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 1260 out3: 1261 free(bufn.Pointer, M_ACPI); 1262 out2: 1263 AcpiOsFree(bufc.Pointer); 1264 out1: 1265 AcpiOsFree(bufp.Pointer); 1266 out: 1267 return rv; 1268 } 1269 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1270
Indexes created Wed Oct 01 19:09:53 GMT 2025