acpi.c revision 1.56
1 /* $NetBSD: acpi.c,v 1.56 2003/11/03 18:07:10 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 1.56 2003/11/03 18:07:10 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 (ACPI_FAILURE(rv)) { 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 (ACPI_FAILURE(rv)) { 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 (ACPI_FAILURE(rv)) { 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 (ACPI_FAILURE(rv)) { 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 ACPI_STATUS rv; 361 362 rv = acpi_disable(sc); 363 if (ACPI_FAILURE(rv)) 364 printf("%s: WARNING: unable to disable ACPI: %s\n", 365 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 366 } 367 368 /* 369 * acpi_disable: 370 * 371 * Disable ACPI. 372 */ 373 ACPI_STATUS 374 acpi_disable(struct acpi_softc *sc) 375 { 376 ACPI_STATUS rv = AE_OK; 377 378 if (acpi_active) { 379 rv = AcpiDisable(); 380 if (ACPI_SUCCESS(rv)) 381 acpi_active = 0; 382 } 383 return (rv); 384 } 385 386 struct acpi_make_devnode_state { 387 struct acpi_softc *softc; 388 struct acpi_scope *scope; 389 }; 390 391 /* 392 * acpi_build_tree: 393 * 394 * Scan relevant portions of the ACPI namespace and attach 395 * child devices. 396 */ 397 void 398 acpi_build_tree(struct acpi_softc *sc) 399 { 400 static const char *scopes[] = { 401 "\\_PR_", /* ACPI 1.0 processor namespace */ 402 "\\_SB_", /* system bus namespace */ 403 "\\_SI_", /* system idicator namespace */ 404 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 405 NULL, 406 }; 407 struct acpi_attach_args aa; 408 struct acpi_make_devnode_state state; 409 struct acpi_scope *as; 410 struct acpi_devnode *ad; 411 ACPI_HANDLE parent; 412 ACPI_STATUS rv; 413 int i; 414 415 TAILQ_INIT(&sc->sc_scopes); 416 417 state.softc = sc; 418 419 /* 420 * Scan the namespace and build our tree. 421 */ 422 for (i = 0; scopes[i] != NULL; i++) { 423 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 424 as->as_name = scopes[i]; 425 TAILQ_INIT(&as->as_devnodes); 426 427 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 428 429 state.scope = as; 430 431 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 432 &parent); 433 if (ACPI_SUCCESS(rv)) { 434 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 435 acpi_make_devnode, &state, NULL); 436 } 437 438 /* Now, for this namespace, try and attach the devices. */ 439 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 440 aa.aa_node = ad; 441 aa.aa_iot = sc->sc_iot; 442 aa.aa_memt = sc->sc_memt; 443 aa.aa_pc = sc->sc_pc; 444 aa.aa_pciflags = sc->sc_pciflags; 445 aa.aa_ic = sc->sc_ic; 446 447 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 448 /* 449 * XXX We only attach devices which are: 450 * 451 * - present 452 * - enabled 453 * - functioning properly 454 * 455 * However, if enabled, it's decoding resources, 456 * so we should claim them, if possible. 457 * Requires changes to bus_space(9). 458 */ 459 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 460 ACPI_VALID_STA && 461 (ad->ad_devinfo->CurrentStatus & 462 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 463 ACPI_STA_DEV_OK)) != 464 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 465 ACPI_STA_DEV_OK)) 466 continue; 467 468 /* 469 * XXX Same problem as above... 470 */ 471 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 472 == 0) 473 continue; 474 } 475 476 ad->ad_device = config_found(&sc->sc_dev, 477 &aa, acpi_print); 478 } 479 } 480 } 481 482 #ifdef ACPI_ACTIVATE_DEV 483 static void 484 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 485 { 486 ACPI_STATUS rv; 487 ACPI_BUFFER buf; 488 489 buf.Pointer = NULL; 490 buf.Length = ACPI_ALLOCATE_BUFFER; 491 492 #ifdef ACPI_DEBUG 493 printf("acpi_activate_device: %s, old status=%x\n", 494 (*di)->HardwareId.Value, (*di)->CurrentStatus); 495 #endif 496 497 rv = acpi_allocate_resources(handle); 498 if (ACPI_FAILURE(rv)) { 499 printf("acpi: activate failed for %s\n", 500 (*di)->HardwareId.Value); 501 } else { 502 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 503 } 504 505 (void)AcpiGetObjectInfo(handle, &buf); 506 AcpiOsFree(*di); 507 *di = buf.Pointer; 508 509 #ifdef ACPI_DEBUG 510 printf("acpi_activate_device: %s, new status=%x\n", 511 (*di)->HardwareId.Value, (*di)->CurrentStatus); 512 #endif 513 } 514 #endif /* ACPI_ACTIVATE_DEV */ 515 516 /* 517 * acpi_make_devnode: 518 * 519 * Make an ACPI devnode. 520 */ 521 ACPI_STATUS 522 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 523 void **status) 524 { 525 struct acpi_make_devnode_state *state = context; 526 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 527 struct acpi_softc *sc = state->softc; 528 #endif 529 struct acpi_scope *as = state->scope; 530 struct acpi_devnode *ad; 531 ACPI_OBJECT_TYPE type; 532 ACPI_BUFFER buf; 533 ACPI_DEVICE_INFO *devinfo; 534 ACPI_STATUS rv; 535 536 rv = AcpiGetType(handle, &type); 537 if (ACPI_SUCCESS(rv)) { 538 buf.Pointer = NULL; 539 buf.Length = ACPI_ALLOCATE_BUFFER; 540 rv = AcpiGetObjectInfo(handle, &buf); 541 if (ACPI_FAILURE(rv)) { 542 #ifdef ACPI_DEBUG 543 printf("%s: AcpiGetObjectInfo failed: %s\n", 544 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 545 #endif 546 goto out; /* XXX why return OK */ 547 } 548 549 devinfo = buf.Pointer; 550 551 switch (type) { 552 case ACPI_TYPE_DEVICE: 553 #ifdef ACPI_ACTIVATE_DEV 554 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 555 (ACPI_VALID_STA|ACPI_VALID_HID) && 556 (devinfo->CurrentStatus & 557 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 558 ACPI_STA_DEV_PRESENT) 559 acpi_activate_device(handle, &devinfo); 560 561 /* FALLTHROUGH */ 562 #endif 563 564 case ACPI_TYPE_PROCESSOR: 565 case ACPI_TYPE_THERMAL: 566 case ACPI_TYPE_POWER: 567 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 568 if (ad == NULL) 569 return (AE_NO_MEMORY); 570 571 ad->ad_devinfo = devinfo; 572 ad->ad_handle = handle; 573 ad->ad_level = level; 574 ad->ad_scope = as; 575 ad->ad_type = type; 576 577 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 578 579 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 580 goto out; 581 582 #ifdef ACPI_EXTRA_DEBUG 583 printf("%s: HID %s found in scope %s level %d\n", 584 sc->sc_dev.dv_xname, 585 ad->ad_devinfo->HardwareId.Value, 586 as->as_name, ad->ad_level); 587 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 588 printf(" UID %s\n", 589 ad->ad_devinfo->UniqueId.Value); 590 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 591 printf(" ADR 0x%016qx\n", 592 ad->ad_devinfo->Address); 593 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 594 printf(" STA 0x%08x\n", 595 ad->ad_devinfo->CurrentStatus); 596 #endif 597 } 598 } 599 out: 600 return (AE_OK); 601 } 602 603 /* 604 * acpi_print: 605 * 606 * Autoconfiguration print routine. 607 */ 608 int 609 acpi_print(void *aux, const char *pnp) 610 { 611 struct acpi_attach_args *aa = aux; 612 ACPI_STATUS rv; 613 614 if (pnp) { 615 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 616 char *pnpstr = 617 aa->aa_node->ad_devinfo->HardwareId.Value; 618 char *str; 619 620 aprint_normal("%s ", pnpstr); 621 rv = acpi_eval_string(aa->aa_node->ad_handle, 622 "_STR", &str); 623 if (ACPI_SUCCESS(rv)) { 624 aprint_normal("[%s] ", str); 625 AcpiOsFree(str); 626 } 627 #ifdef ACPIVERBOSE 628 else { 629 int i; 630 631 for (i = 0; i < sizeof(acpi_knowndevs) / 632 sizeof(acpi_knowndevs[0]); i++) { 633 if (strcmp(acpi_knowndevs[i].pnp, 634 pnpstr) == 0) { 635 printf("[%s] ", 636 acpi_knowndevs[i].str); 637 } 638 } 639 } 640 641 #endif 642 } else { 643 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 644 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 645 aa->aa_node->ad_devinfo->Type); 646 } 647 aprint_normal("at %s", pnp); 648 } else { 649 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 650 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 651 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 652 char *uid; 653 654 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 655 if (uid[0] == '\0') 656 uid = "<null>"; 657 aprint_normal("-%s", uid); 658 } 659 aprint_normal(")"); 660 } 661 } 662 663 return (UNCONF); 664 } 665 666 /***************************************************************************** 667 * ACPI fixed-hardware feature handlers 668 *****************************************************************************/ 669 670 UINT32 acpi_fixed_button_handler(void *); 671 void acpi_fixed_button_pressed(void *); 672 673 /* 674 * acpi_enable_fixed_events: 675 * 676 * Enable any fixed-hardware feature handlers. 677 */ 678 void 679 acpi_enable_fixed_events(struct acpi_softc *sc) 680 { 681 static int beenhere; 682 ACPI_STATUS rv; 683 684 KASSERT(beenhere == 0); 685 beenhere = 1; 686 687 /* 688 * Check for fixed-hardware buttons. 689 */ 690 691 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 692 printf("%s: fixed-feature power button present\n", 693 sc->sc_dev.dv_xname); 694 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 695 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 696 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 697 printf("%s: unable to register fixed power button " 698 "with sysmon\n", sc->sc_dev.dv_xname); 699 } else { 700 rv = AcpiInstallFixedEventHandler( 701 ACPI_EVENT_POWER_BUTTON, 702 acpi_fixed_button_handler, &sc->sc_smpsw_power); 703 if (ACPI_FAILURE(rv)) { 704 printf("%s: unable to install handler for " 705 "fixed power button: %s\n", 706 sc->sc_dev.dv_xname, 707 AcpiFormatException(rv)); 708 } 709 } 710 } 711 712 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 713 printf("%s: fixed-feature sleep button present\n", 714 sc->sc_dev.dv_xname); 715 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 716 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 717 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 718 printf("%s: unable to register fixed sleep button " 719 "with sysmon\n", sc->sc_dev.dv_xname); 720 } else { 721 rv = AcpiInstallFixedEventHandler( 722 ACPI_EVENT_SLEEP_BUTTON, 723 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 724 if (ACPI_FAILURE(rv)) { 725 printf("%s: unable to install handler for " 726 "fixed sleep button: %s\n", 727 sc->sc_dev.dv_xname, 728 AcpiFormatException(rv)); 729 } 730 } 731 } 732 } 733 734 /* 735 * acpi_fixed_button_handler: 736 * 737 * Event handler for the fixed buttons. 738 */ 739 UINT32 740 acpi_fixed_button_handler(void *context) 741 { 742 struct sysmon_pswitch *smpsw = context; 743 int rv; 744 745 #ifdef ACPI_BUT_DEBUG 746 printf("%s: fixed button handler\n", smpsw->smpsw_name); 747 #endif 748 749 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 750 acpi_fixed_button_pressed, smpsw); 751 if (ACPI_FAILURE(rv)) 752 printf("%s: WARNING: unable to queue fixed button pressed " 753 "callback: %s\n", smpsw->smpsw_name, 754 AcpiFormatException(rv)); 755 756 return (ACPI_INTERRUPT_HANDLED); 757 } 758 759 /* 760 * acpi_fixed_button_pressed: 761 * 762 * Deal with a fixed button being pressed. 763 */ 764 void 765 acpi_fixed_button_pressed(void *context) 766 { 767 struct sysmon_pswitch *smpsw = context; 768 769 #ifdef ACPI_BUT_DEBUG 770 printf("%s: fixed button pressed, calling sysmon\n", 771 smpsw->smpsw_name); 772 #endif 773 774 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 775 } 776 777 /***************************************************************************** 778 * ACPI utility routines. 779 *****************************************************************************/ 780 781 /* 782 * acpi_eval_integer: 783 * 784 * Evaluate an integer object. 785 */ 786 ACPI_STATUS 787 acpi_eval_integer(ACPI_HANDLE handle, char *path, int *valp) 788 { 789 ACPI_STATUS rv; 790 ACPI_BUFFER buf; 791 ACPI_OBJECT param; 792 793 if (handle == NULL) 794 handle = ACPI_ROOT_OBJECT; 795 796 buf.Pointer = ¶m; 797 buf.Length = sizeof(param); 798 799 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 800 if (ACPI_SUCCESS(rv)) 801 *valp = param.Integer.Value; 802 803 return (rv); 804 } 805 806 /* 807 * acpi_eval_string: 808 * 809 * Evaluate a (Unicode) string object. 810 */ 811 ACPI_STATUS 812 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 813 { 814 ACPI_STATUS rv; 815 ACPI_BUFFER buf; 816 817 if (handle == NULL) 818 handle = ACPI_ROOT_OBJECT; 819 820 buf.Pointer = NULL; 821 buf.Length = ACPI_ALLOCATE_BUFFER; 822 823 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 824 if (ACPI_SUCCESS(rv)) { 825 ACPI_OBJECT *param = buf.Pointer; 826 char *ptr = param->String.Pointer; 827 size_t len = param->String.Length; 828 if ((*stringp = AcpiOsAllocate(len)) == NULL) 829 rv = AE_NO_MEMORY; 830 else 831 (void)memcpy(*stringp, ptr, len); 832 AcpiOsFree(param); 833 } 834 835 return (rv); 836 } 837 838 839 /* 840 * acpi_eval_struct: 841 * 842 * Evaluate a more complex structure. 843 * Caller must free buf.Pointer by AcpiOsFree(). 844 */ 845 ACPI_STATUS 846 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 847 { 848 ACPI_STATUS rv; 849 850 if (handle == NULL) 851 handle = ACPI_ROOT_OBJECT; 852 853 bufp->Pointer = NULL; 854 bufp->Length = ACPI_ALLOCATE_BUFFER; 855 856 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 857 858 return (rv); 859 } 860 861 /* 862 * acpi_get: 863 * 864 * Fetch data info the specified (empty) ACPI buffer. 865 * Caller must free buf.Pointer by AcpiOsFree(). 866 */ 867 ACPI_STATUS 868 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 869 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 870 { 871 buf->Pointer = NULL; 872 buf->Length = ACPI_ALLOCATE_BUFFER; 873 874 return ((*getit)(handle, buf)); 875 } 876 877 878 /* 879 * acpi_match_hid 880 * 881 * Match given ids against _HID and _CIDs 882 */ 883 int 884 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 885 { 886 int i; 887 888 while (*ids) { 889 if ((ad->Valid & ACPI_VALID_HID) && 890 strcmp(ad->HardwareId.Value, *ids) == 0) 891 return (1); 892 893 if (ad->Valid & ACPI_VALID_CID) { 894 for (i = 0; i < ad->CompatibilityId.Count; i++) { 895 if (strcmp(ad->CompatibilityId.Id[i].Value, *ids) == 0) 896 return (1); 897 } 898 } 899 ids++; 900 } 901 902 return (0); 903 } 904 905 906 /***************************************************************************** 907 * ACPI sleep support. 908 *****************************************************************************/ 909 910 static int 911 is_available_state(struct acpi_softc *sc, int state) 912 { 913 UINT8 type_a, type_b; 914 915 return (ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 916 &type_a, &type_b))); 917 } 918 919 /* 920 * acpi_enter_sleep_state: 921 * 922 * enter to the specified sleep state. 923 */ 924 925 ACPI_STATUS 926 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 927 { 928 int s; 929 ACPI_STATUS ret = AE_OK; 930 931 switch (state) { 932 case ACPI_STATE_S0: 933 break; 934 case ACPI_STATE_S1: 935 case ACPI_STATE_S2: 936 case ACPI_STATE_S3: 937 case ACPI_STATE_S4: 938 if (!is_available_state(sc, state)) { 939 printf("acpi: cannot enter the sleep state (%d).\n", 940 state); 941 break; 942 } 943 ret = AcpiEnterSleepStatePrep(state); 944 if (ACPI_FAILURE(ret)) { 945 printf("acpi: failed preparing to sleep (%s)\n", 946 AcpiFormatException(ret)); 947 break; 948 } 949 if (state==ACPI_STATE_S1) { 950 /* just enter the state */ 951 acpi_md_OsDisableInterrupt(); 952 AcpiEnterSleepState((UINT8)state); 953 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 954 } else { 955 /* XXX: powerhooks(9) framework is too poor to 956 * support ACPI sleep state... 957 */ 958 dopowerhooks(PWR_SOFTSUSPEND); 959 s = splhigh(); 960 dopowerhooks(PWR_SUSPEND); 961 acpi_md_sleep(state); 962 dopowerhooks(PWR_RESUME); 963 splx(s); 964 dopowerhooks(PWR_SOFTRESUME); 965 if (state==ACPI_STATE_S4) 966 AcpiEnable(); 967 } 968 AcpiLeaveSleepState((UINT8)state); 969 break; 970 case ACPI_STATE_S5: 971 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 972 if (ACPI_FAILURE(ret)) { 973 printf("acpi: failed preparing to sleep (%s)\n", 974 AcpiFormatException(ret)); 975 break; 976 } 977 acpi_md_OsDisableInterrupt(); 978 AcpiEnterSleepState(ACPI_STATE_S5); 979 printf("WARNING: powerdown failed!\n"); 980 break; 981 } 982 983 return (ret); 984 } 985 986 #ifdef ACPI_PCI_FIXUP 987 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 988 /* 989 * acpi_pci_fixup: 990 * 991 * Set up PCI devices that BIOS didn't handle right. 992 * Iterate through all devices and try to get the _PTR 993 * (PCI Routing Table). If it exists then make sure all 994 * interrupt links that it uses are working. 995 */ 996 void 997 acpi_pci_fixup(struct acpi_softc *sc) 998 { 999 ACPI_HANDLE parent; 1000 ACPI_STATUS rv; 1001 1002 #ifdef ACPI_DEBUG 1003 printf("acpi_pci_fixup starts:\n"); 1004 #endif 1005 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent); 1006 if (ACPI_FAILURE(rv)) 1007 return; 1008 sc->sc_pci_bus = 0; 1009 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1010 acpi_pci_fixup_bus, sc, NULL); 1011 } 1012 1013 static ACPI_HANDLE 1014 acpi_get_node(char *name) 1015 { 1016 ACPI_NAMESPACE_NODE *ObjDesc; 1017 ACPI_STATUS Status; 1018 1019 Status = AcpiNsGetNodeByPath(name, NULL, 0, &ObjDesc); 1020 if (ACPI_FAILURE (Status)) { 1021 printf("acpi_get_node: could not find: %s\n", 1022 AcpiFormatException (Status)); 1023 return NULL; 1024 } 1025 return ObjDesc; 1026 } 1027 1028 static uint 1029 acpi_get_intr(ACPI_HANDLE handle) 1030 { 1031 ACPI_BUFFER ret; 1032 ACPI_STATUS rv; 1033 ACPI_RESOURCE *res; 1034 ACPI_RESOURCE_IRQ *irq; 1035 uint intr; 1036 1037 intr = -1; 1038 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1039 if (ACPI_FAILURE(rv)) 1040 return (intr); 1041 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1042 res = ACPI_NEXT_RESOURCE(res)) { 1043 if (res->Id == ACPI_RSTYPE_IRQ) { 1044 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1045 if (irq->NumberOfInterrupts == 1) 1046 intr = irq->Interrupts[0]; 1047 break; 1048 } 1049 } 1050 AcpiOsFree(ret.Pointer); 1051 return (intr); 1052 } 1053 1054 static void 1055 acpi_pci_set_line(int bus, int dev, int pin, int line) 1056 { 1057 ACPI_STATUS err; 1058 ACPI_PCI_ID pid; 1059 UINT32 intr, id, bhlc; 1060 int func, nfunc; 1061 1062 pid.Bus = bus; 1063 pid.Device = dev; 1064 pid.Function = 0; 1065 1066 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1067 if (err) 1068 return; 1069 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1070 nfunc = 8; 1071 else 1072 nfunc = 1; 1073 1074 for (func = 0; func < nfunc; func++) { 1075 pid.Function = func; 1076 1077 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1078 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1079 PCI_VENDOR(id) == 0) 1080 continue; 1081 1082 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1083 &intr, 32); 1084 if (err) { 1085 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1086 return; 1087 } 1088 if (pin == PCI_INTERRUPT_PIN(intr) && 1089 line != PCI_INTERRUPT_LINE(intr)) { 1090 #ifdef ACPI_DEBUG 1091 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1092 bus, dev, func, 1093 pin + '@', PCI_INTERRUPT_LINE(intr), 1094 line); 1095 #endif 1096 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1097 PCI_INTERRUPT_LINE_SHIFT); 1098 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1099 err = AcpiOsWritePciConfiguration(&pid, 1100 PCI_INTERRUPT_REG, intr, 32); 1101 if (err) { 1102 printf("AcpiOsWritePciConfiguration failed" 1103 " %d\n", err); 1104 return; 1105 } 1106 } 1107 } 1108 } 1109 1110 ACPI_STATUS 1111 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1112 void **status) 1113 { 1114 struct acpi_softc *sc = context; 1115 ACPI_STATUS rv; 1116 ACPI_BUFFER buf; 1117 UINT8 *Buffer; 1118 ACPI_PCI_ROUTING_TABLE *PrtElement; 1119 ACPI_HANDLE link; 1120 uint line; 1121 ACPI_NAMESPACE_NODE *node; 1122 ACPI_INTEGER val; 1123 1124 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1125 if (ACPI_FAILURE(rv)) 1126 return (AE_OK); 1127 1128 /* 1129 * If at level 1, this is a PCI root bus. Try the _BBN method 1130 * to get the right PCI bus numbering for the following 1131 * busses (this is a depth-first walk). It may fail, 1132 * for example if there's only one root bus, but that 1133 * case should be ok, so we'll ignore that. 1134 */ 1135 if (level == 1) { 1136 node = AcpiNsMapHandleToNode(handle); 1137 rv = AcpiUtEvaluateNumericObject(METHOD_NAME__BBN, node, &val); 1138 if (!ACPI_FAILURE(rv)) { 1139 #ifdef ACPI_DEBUG 1140 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1141 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1142 ACPI_LOWORD(val)); 1143 #endif 1144 sc->sc_pci_bus = ACPI_LOWORD(val); 1145 } 1146 } 1147 1148 1149 #ifdef ACPI_DEBUG 1150 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1151 sc->sc_pci_bus, level); 1152 #endif 1153 1154 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1155 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1156 if (PrtElement->Length == 0) 1157 break; 1158 if (PrtElement->Source[0] == 0) 1159 continue; 1160 1161 link = acpi_get_node(PrtElement->Source); 1162 if (link == NULL) 1163 continue; 1164 line = acpi_get_intr(link); 1165 if (line == -1) { 1166 #ifdef ACPI_DEBUG 1167 printf("%s: fixing up intr link %s\n", 1168 sc->sc_dev.dv_xname, PrtElement->Source); 1169 #endif 1170 rv = acpi_allocate_resources(link); 1171 if (ACPI_FAILURE(rv)) { 1172 printf("%s: interrupt allocation failed %s\n", 1173 sc->sc_dev.dv_xname, PrtElement->Source); 1174 continue; 1175 } 1176 line = acpi_get_intr(link); 1177 if (line == -1) { 1178 printf("%s: get intr failed %s\n", 1179 sc->sc_dev.dv_xname, PrtElement->Source); 1180 continue; 1181 } 1182 } 1183 1184 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1185 PrtElement->Pin + 1, line); 1186 } 1187 1188 sc->sc_pci_bus++; 1189 1190 AcpiOsFree(buf.Pointer); 1191 return (AE_OK); 1192 } 1193 #endif /* ACPI_PCI_FIXUP */ 1194 1195 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1196 /* XXX This very incomplete */ 1197 ACPI_STATUS 1198 acpi_allocate_resources(ACPI_HANDLE handle) 1199 { 1200 ACPI_BUFFER bufp, bufc, bufn; 1201 ACPI_RESOURCE *resp, *resc, *resn; 1202 ACPI_RESOURCE_IRQ *irq; 1203 ACPI_STATUS rv; 1204 uint delta; 1205 1206 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1207 if (ACPI_FAILURE(rv)) 1208 goto out; 1209 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1210 if (ACPI_FAILURE(rv)) { 1211 goto out1; 1212 } 1213 1214 bufn.Length = 1000; 1215 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1216 resp = bufp.Pointer; 1217 resc = bufc.Pointer; 1218 while (resc->Id != ACPI_RSTYPE_END_TAG && 1219 resp->Id != ACPI_RSTYPE_END_TAG) { 1220 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1221 resp = ACPI_NEXT_RESOURCE(resp); 1222 if (resp->Id == ACPI_RSTYPE_END_TAG) 1223 break; 1224 /* Found identical Id */ 1225 resn->Id = resc->Id; 1226 switch (resc->Id) { 1227 case ACPI_RSTYPE_IRQ: 1228 memcpy(&resn->Data, &resp->Data, 1229 sizeof(ACPI_RESOURCE_IRQ)); 1230 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1231 irq->Interrupts[0] = 1232 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1233 Interrupts[irq->NumberOfInterrupts-1]; 1234 irq->NumberOfInterrupts = 1; 1235 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1236 break; 1237 case ACPI_RSTYPE_IO: 1238 memcpy(&resn->Data, &resp->Data, 1239 sizeof(ACPI_RESOURCE_IO)); 1240 resn->Length = resp->Length; 1241 break; 1242 default: 1243 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1244 rv = AE_BAD_DATA; 1245 goto out2; 1246 } 1247 resc = ACPI_NEXT_RESOURCE(resc); 1248 resn = ACPI_NEXT_RESOURCE(resn); 1249 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1250 if (delta >= 1251 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1252 bufn.Length *= 2; 1253 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1254 M_ACPI, M_WAITOK); 1255 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1256 } 1257 } 1258 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1259 printf("acpi_allocate_resources: resc not exhausted\n"); 1260 rv = AE_BAD_DATA; 1261 goto out3; 1262 } 1263 1264 resn->Id = ACPI_RSTYPE_END_TAG; 1265 rv = AcpiSetCurrentResources(handle, &bufn); 1266 if (ACPI_FAILURE(rv)) { 1267 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1268 AcpiFormatException(rv)); 1269 } 1270 1271 out3: 1272 free(bufn.Pointer, M_ACPI); 1273 out2: 1274 AcpiOsFree(bufc.Pointer); 1275 out1: 1276 AcpiOsFree(bufp.Pointer); 1277 out: 1278 return rv; 1279 } 1280 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1281
Indexes created Wed Oct 01 19:09:53 GMT 2025