acpi.c revision 1.59
1 /* $NetBSD: acpi.c,v 1.59 2004/03/23 19:00:03 drochner 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 1.59 2004/03/23 19:00:03 drochner Exp $"); 81 82 #include "opt_acpi.h" 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/device.h> 87 #include <sys/malloc.h> 88 #include <sys/kernel.h> 89 #include <sys/proc.h> 90 91 #include <dev/acpi/acpica.h> 92 #include <dev/acpi/acpireg.h> 93 #include <dev/acpi/acpivar.h> 94 #include <dev/acpi/acpi_osd.h> 95 #ifdef ACPIVERBOSE 96 #include <dev/acpi/acpidevs_data.h> 97 #endif 98 99 #ifdef ACPI_PCI_FIXUP 100 #include <dev/pci/pcidevs.h> 101 #endif 102 103 MALLOC_DECLARE(M_ACPI); 104 105 #include <machine/acpi_machdep.h> 106 107 #ifdef ACPI_DEBUGGER 108 #define ACPI_DBGR_INIT 0x01 109 #define ACPI_DBGR_TABLES 0x02 110 #define ACPI_DBGR_ENABLE 0x04 111 #define ACPI_DBGR_PROBE 0x08 112 #define ACPI_DBGR_RUNNING 0x10 113 114 int acpi_dbgr = 0x00; 115 #endif 116 117 int acpi_match(struct device *, struct cfdata *, void *); 118 void acpi_attach(struct device *, struct device *, void *); 119 120 int acpi_print(void *aux, const char *); 121 122 extern struct cfdriver acpi_cd; 123 124 CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 125 acpi_match, acpi_attach, NULL, NULL); 126 127 /* 128 * This is a flag we set when the ACPI subsystem is active. Machine 129 * dependent code may wish to skip other steps (such as attaching 130 * subsystems that ACPI supercedes) when ACPI is active. 131 */ 132 int acpi_active; 133 134 /* 135 * Pointer to the ACPI subsystem's state. There can be only 136 * one ACPI instance. 137 */ 138 struct acpi_softc *acpi_softc; 139 140 /* 141 * Locking stuff. 142 */ 143 static struct simplelock acpi_slock; 144 static int acpi_locked; 145 146 /* 147 * Prototypes. 148 */ 149 void acpi_shutdown(void *); 150 ACPI_STATUS acpi_disable(struct acpi_softc *sc); 151 void acpi_build_tree(struct acpi_softc *); 152 ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 153 154 void acpi_enable_fixed_events(struct acpi_softc *); 155 #ifdef ACPI_PCI_FIXUP 156 void acpi_pci_fixup(struct acpi_softc *); 157 #endif 158 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 159 ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE handle); 160 #endif 161 162 /* 163 * acpi_probe: 164 * 165 * Probe for ACPI support. This is called by the 166 * machine-dependent ACPI front-end. All of the 167 * actual work is done by ACPICA. 168 * 169 * NOTE: This is not an autoconfiguration interface function. 170 */ 171 int 172 acpi_probe(void) 173 { 174 static int beenhere; 175 ACPI_STATUS rv; 176 177 if (beenhere != 0) 178 panic("acpi_probe: ACPI has already been probed"); 179 beenhere = 1; 180 181 simple_lock_init(&acpi_slock); 182 acpi_locked = 0; 183 184 /* 185 * Start up ACPICA. 186 */ 187 #ifdef ACPI_DEBUGGER 188 if (acpi_dbgr & ACPI_DBGR_INIT) 189 acpi_osd_debugger(); 190 #endif 191 192 rv = AcpiInitializeSubsystem(); 193 if (ACPI_FAILURE(rv)) { 194 printf("ACPI: unable to initialize ACPICA: %s\n", 195 AcpiFormatException(rv)); 196 return (0); 197 } 198 199 #ifdef ACPI_DEBUGGER 200 if (acpi_dbgr & ACPI_DBGR_TABLES) 201 acpi_osd_debugger(); 202 #endif 203 204 rv = AcpiLoadTables(); 205 if (ACPI_FAILURE(rv)) { 206 printf("ACPI: unable to load tables: %s\n", 207 AcpiFormatException(rv)); 208 return (0); 209 } 210 211 /* 212 * Looks like we have ACPI! 213 */ 214 215 return (1); 216 } 217 218 /* 219 * acpi_match: 220 * 221 * Autoconfiguration `match' routine. 222 */ 223 int 224 acpi_match(struct device *parent, struct cfdata *match, void *aux) 225 { 226 struct acpibus_attach_args *aa = aux; 227 228 if (strcmp(aa->aa_busname, acpi_cd.cd_name) != 0) 229 return (0); 230 231 /* 232 * XXX Check other locators? Hard to know -- machine 233 * dependent code has already checked for the presence 234 * of ACPI by calling acpi_probe(), so I suppose we 235 * don't really have to do anything else. 236 */ 237 return (1); 238 } 239 240 /* 241 * acpi_attach: 242 * 243 * Autoconfiguration `attach' routine. Finish initializing 244 * ACPICA (some initialization was done in acpi_probe(), 245 * which was required to check for the presence of ACPI), 246 * and enable the ACPI subsystem. 247 */ 248 void 249 acpi_attach(struct device *parent, struct device *self, void *aux) 250 { 251 struct acpi_softc *sc = (void *) self; 252 struct acpibus_attach_args *aa = aux; 253 ACPI_STATUS rv; 254 255 printf("\n"); 256 257 if (acpi_softc != NULL) 258 panic("acpi_attach: ACPI has already been attached"); 259 260 sysmon_power_settype("acpi"); 261 262 printf("%s: using Intel ACPI CA subsystem version %08x\n", 263 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 264 265 printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 266 sc->sc_dev.dv_xname, 267 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 268 AcpiGbl_XSDT->OemRevision, 269 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 270 271 sc->sc_quirks = acpi_find_quirks(); 272 273 sc->sc_iot = aa->aa_iot; 274 sc->sc_memt = aa->aa_memt; 275 sc->sc_pc = aa->aa_pc; 276 sc->sc_pciflags = aa->aa_pciflags; 277 sc->sc_ic = aa->aa_ic; 278 279 acpi_softc = sc; 280 281 /* 282 * Bring ACPI on-line. 283 */ 284 #ifdef ACPI_DEBUGGER 285 if (acpi_dbgr & ACPI_DBGR_ENABLE) 286 acpi_osd_debugger(); 287 #endif 288 289 rv = AcpiEnableSubsystem(0); 290 if (ACPI_FAILURE(rv)) { 291 printf("%s: unable to enable ACPI: %s\n", 292 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 293 return; 294 } 295 rv = AcpiInitializeObjects(0); 296 if (ACPI_FAILURE(rv)) { 297 printf("%s: unable to initialize ACPI objects: %s\n", 298 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 299 return; 300 } 301 acpi_active = 1; 302 303 /* Our current state is "awake". */ 304 sc->sc_sleepstate = ACPI_STATE_S0; 305 306 /* Show SCI interrupt. */ 307 if (AcpiGbl_FADT != NULL) 308 printf("%s: SCI interrupting at int %d\n", 309 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 310 /* 311 * Check for fixed-hardware features. 312 */ 313 acpi_enable_fixed_events(sc); 314 315 /* 316 * Fix up PCI devices. 317 */ 318 #ifdef ACPI_PCI_FIXUP 319 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 320 acpi_pci_fixup(sc); 321 #endif 322 323 /* 324 * Scan the namespace and build our device tree. 325 */ 326 #ifdef ACPI_DEBUGGER 327 if (acpi_dbgr & ACPI_DBGR_PROBE) 328 acpi_osd_debugger(); 329 #endif 330 acpi_md_callback((struct device *)sc); 331 acpi_build_tree(sc); 332 333 /* 334 * Register a shutdown hook that disables certain ACPI 335 * events that might happen and confuse us while we're 336 * trying to shut down. 337 */ 338 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 339 if (sc->sc_sdhook == NULL) 340 printf("%s: WARNING: unable to register shutdown hook\n", 341 sc->sc_dev.dv_xname); 342 343 #ifdef ACPI_DEBUGGER 344 if (acpi_dbgr & ACPI_DBGR_RUNNING) 345 acpi_osd_debugger(); 346 #endif 347 } 348 349 /* 350 * acpi_shutdown: 351 * 352 * Shutdown hook for ACPI -- disable some events that 353 * might confuse us. 354 */ 355 void 356 acpi_shutdown(void *arg) 357 { 358 struct acpi_softc *sc = arg; 359 ACPI_STATUS rv; 360 361 rv = acpi_disable(sc); 362 if (ACPI_FAILURE(rv)) 363 printf("%s: WARNING: unable to disable ACPI: %s\n", 364 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 365 } 366 367 /* 368 * acpi_disable: 369 * 370 * Disable ACPI. 371 */ 372 ACPI_STATUS 373 acpi_disable(struct acpi_softc *sc) 374 { 375 ACPI_STATUS rv = AE_OK; 376 377 if (acpi_active) { 378 rv = AcpiDisable(); 379 if (ACPI_SUCCESS(rv)) 380 acpi_active = 0; 381 } 382 return (rv); 383 } 384 385 struct acpi_make_devnode_state { 386 struct acpi_softc *softc; 387 struct acpi_scope *scope; 388 }; 389 390 /* 391 * acpi_build_tree: 392 * 393 * Scan relevant portions of the ACPI namespace and attach 394 * child devices. 395 */ 396 void 397 acpi_build_tree(struct acpi_softc *sc) 398 { 399 static const char *scopes[] = { 400 "\\_PR_", /* ACPI 1.0 processor namespace */ 401 "\\_SB_", /* system bus namespace */ 402 "\\_SI_", /* system idicator namespace */ 403 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 404 NULL, 405 }; 406 struct acpi_attach_args aa; 407 struct acpi_make_devnode_state state; 408 struct acpi_scope *as; 409 struct acpi_devnode *ad; 410 ACPI_HANDLE parent; 411 ACPI_STATUS rv; 412 int i; 413 414 TAILQ_INIT(&sc->sc_scopes); 415 416 state.softc = sc; 417 418 /* 419 * Scan the namespace and build our tree. 420 */ 421 for (i = 0; scopes[i] != NULL; i++) { 422 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 423 as->as_name = scopes[i]; 424 TAILQ_INIT(&as->as_devnodes); 425 426 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 427 428 state.scope = as; 429 430 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 431 &parent); 432 if (ACPI_SUCCESS(rv)) { 433 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 434 acpi_make_devnode, &state, NULL); 435 } 436 437 /* Now, for this namespace, try and attach the devices. */ 438 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 439 aa.aa_node = ad; 440 aa.aa_iot = sc->sc_iot; 441 aa.aa_memt = sc->sc_memt; 442 aa.aa_pc = sc->sc_pc; 443 aa.aa_pciflags = sc->sc_pciflags; 444 aa.aa_ic = sc->sc_ic; 445 446 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 447 /* 448 * XXX We only attach devices which are: 449 * 450 * - present 451 * - enabled 452 * - functioning properly 453 * 454 * However, if enabled, it's decoding resources, 455 * so we should claim them, if possible. 456 * Requires changes to bus_space(9). 457 */ 458 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 459 ACPI_VALID_STA && 460 (ad->ad_devinfo->CurrentStatus & 461 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 462 ACPI_STA_DEV_OK)) != 463 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 464 ACPI_STA_DEV_OK)) 465 continue; 466 467 /* 468 * XXX Same problem as above... 469 */ 470 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 471 == 0) 472 continue; 473 } 474 475 ad->ad_device = config_found(&sc->sc_dev, 476 &aa, acpi_print); 477 } 478 } 479 } 480 481 #ifdef ACPI_ACTIVATE_DEV 482 static void 483 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 484 { 485 ACPI_STATUS rv; 486 ACPI_BUFFER buf; 487 488 buf.Pointer = NULL; 489 buf.Length = ACPI_ALLOCATE_BUFFER; 490 491 #ifdef ACPI_DEBUG 492 printf("acpi_activate_device: %s, old status=%x\n", 493 (*di)->HardwareId.Value, (*di)->CurrentStatus); 494 #endif 495 496 rv = acpi_allocate_resources(handle); 497 if (ACPI_FAILURE(rv)) { 498 printf("acpi: activate failed for %s\n", 499 (*di)->HardwareId.Value); 500 } else { 501 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 502 } 503 504 (void)AcpiGetObjectInfo(handle, &buf); 505 AcpiOsFree(*di); 506 *di = buf.Pointer; 507 508 #ifdef ACPI_DEBUG 509 printf("acpi_activate_device: %s, new status=%x\n", 510 (*di)->HardwareId.Value, (*di)->CurrentStatus); 511 #endif 512 } 513 #endif /* ACPI_ACTIVATE_DEV */ 514 515 /* 516 * acpi_make_devnode: 517 * 518 * Make an ACPI devnode. 519 */ 520 ACPI_STATUS 521 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 522 void **status) 523 { 524 struct acpi_make_devnode_state *state = context; 525 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 526 struct acpi_softc *sc = state->softc; 527 #endif 528 struct acpi_scope *as = state->scope; 529 struct acpi_devnode *ad; 530 ACPI_OBJECT_TYPE type; 531 ACPI_BUFFER buf; 532 ACPI_DEVICE_INFO *devinfo; 533 ACPI_STATUS rv; 534 535 rv = AcpiGetType(handle, &type); 536 if (ACPI_SUCCESS(rv)) { 537 buf.Pointer = NULL; 538 buf.Length = ACPI_ALLOCATE_BUFFER; 539 rv = AcpiGetObjectInfo(handle, &buf); 540 if (ACPI_FAILURE(rv)) { 541 #ifdef ACPI_DEBUG 542 printf("%s: AcpiGetObjectInfo failed: %s\n", 543 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 544 #endif 545 goto out; /* XXX why return OK */ 546 } 547 548 devinfo = buf.Pointer; 549 550 switch (type) { 551 case ACPI_TYPE_DEVICE: 552 #ifdef ACPI_ACTIVATE_DEV 553 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 554 (ACPI_VALID_STA|ACPI_VALID_HID) && 555 (devinfo->CurrentStatus & 556 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 557 ACPI_STA_DEV_PRESENT) 558 acpi_activate_device(handle, &devinfo); 559 560 /* FALLTHROUGH */ 561 #endif 562 563 case ACPI_TYPE_PROCESSOR: 564 case ACPI_TYPE_THERMAL: 565 case ACPI_TYPE_POWER: 566 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 567 if (ad == NULL) 568 return (AE_NO_MEMORY); 569 570 ad->ad_devinfo = devinfo; 571 ad->ad_handle = handle; 572 ad->ad_level = level; 573 ad->ad_scope = as; 574 ad->ad_type = type; 575 576 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 577 578 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 579 goto out; 580 581 #ifdef ACPI_EXTRA_DEBUG 582 printf("%s: HID %s found in scope %s level %d\n", 583 sc->sc_dev.dv_xname, 584 ad->ad_devinfo->HardwareId.Value, 585 as->as_name, ad->ad_level); 586 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 587 printf(" UID %s\n", 588 ad->ad_devinfo->UniqueId.Value); 589 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 590 printf(" ADR 0x%016qx\n", 591 ad->ad_devinfo->Address); 592 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 593 printf(" STA 0x%08x\n", 594 ad->ad_devinfo->CurrentStatus); 595 #endif 596 } 597 } 598 out: 599 return (AE_OK); 600 } 601 602 /* 603 * acpi_print: 604 * 605 * Autoconfiguration print routine. 606 */ 607 int 608 acpi_print(void *aux, const char *pnp) 609 { 610 struct acpi_attach_args *aa = aux; 611 ACPI_STATUS rv; 612 613 if (pnp) { 614 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 615 char *pnpstr = 616 aa->aa_node->ad_devinfo->HardwareId.Value; 617 char *str; 618 619 aprint_normal("%s ", pnpstr); 620 rv = acpi_eval_string(aa->aa_node->ad_handle, 621 "_STR", &str); 622 if (ACPI_SUCCESS(rv)) { 623 aprint_normal("[%s] ", str); 624 AcpiOsFree(str); 625 } 626 #ifdef ACPIVERBOSE 627 else { 628 int i; 629 630 for (i = 0; i < sizeof(acpi_knowndevs) / 631 sizeof(acpi_knowndevs[0]); i++) { 632 if (strcmp(acpi_knowndevs[i].pnp, 633 pnpstr) == 0) { 634 printf("[%s] ", 635 acpi_knowndevs[i].str); 636 } 637 } 638 } 639 640 #endif 641 } else { 642 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 643 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 644 aa->aa_node->ad_devinfo->Type); 645 } 646 aprint_normal("at %s", pnp); 647 } else { 648 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 649 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 650 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 651 char *uid; 652 653 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 654 if (uid[0] == '\0') 655 uid = "<null>"; 656 aprint_normal("-%s", uid); 657 } 658 aprint_normal(")"); 659 } 660 } 661 662 return (UNCONF); 663 } 664 665 /***************************************************************************** 666 * ACPI fixed-hardware feature handlers 667 *****************************************************************************/ 668 669 UINT32 acpi_fixed_button_handler(void *); 670 void acpi_fixed_button_pressed(void *); 671 672 /* 673 * acpi_enable_fixed_events: 674 * 675 * Enable any fixed-hardware feature handlers. 676 */ 677 void 678 acpi_enable_fixed_events(struct acpi_softc *sc) 679 { 680 static int beenhere; 681 ACPI_STATUS rv; 682 683 KASSERT(beenhere == 0); 684 beenhere = 1; 685 686 /* 687 * Check for fixed-hardware buttons. 688 */ 689 690 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 691 printf("%s: fixed-feature power button present\n", 692 sc->sc_dev.dv_xname); 693 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 694 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 695 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 696 printf("%s: unable to register fixed power button " 697 "with sysmon\n", sc->sc_dev.dv_xname); 698 } else { 699 rv = AcpiInstallFixedEventHandler( 700 ACPI_EVENT_POWER_BUTTON, 701 acpi_fixed_button_handler, &sc->sc_smpsw_power); 702 if (ACPI_FAILURE(rv)) { 703 printf("%s: unable to install handler for " 704 "fixed power button: %s\n", 705 sc->sc_dev.dv_xname, 706 AcpiFormatException(rv)); 707 } 708 } 709 } 710 711 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 712 printf("%s: fixed-feature sleep button present\n", 713 sc->sc_dev.dv_xname); 714 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 715 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 716 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 717 printf("%s: unable to register fixed sleep button " 718 "with sysmon\n", sc->sc_dev.dv_xname); 719 } else { 720 rv = AcpiInstallFixedEventHandler( 721 ACPI_EVENT_SLEEP_BUTTON, 722 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 723 if (ACPI_FAILURE(rv)) { 724 printf("%s: unable to install handler for " 725 "fixed sleep button: %s\n", 726 sc->sc_dev.dv_xname, 727 AcpiFormatException(rv)); 728 } 729 } 730 } 731 } 732 733 /* 734 * acpi_fixed_button_handler: 735 * 736 * Event handler for the fixed buttons. 737 */ 738 UINT32 739 acpi_fixed_button_handler(void *context) 740 { 741 struct sysmon_pswitch *smpsw = context; 742 int rv; 743 744 #ifdef ACPI_BUT_DEBUG 745 printf("%s: fixed button handler\n", smpsw->smpsw_name); 746 #endif 747 748 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 749 acpi_fixed_button_pressed, smpsw); 750 if (ACPI_FAILURE(rv)) 751 printf("%s: WARNING: unable to queue fixed button pressed " 752 "callback: %s\n", smpsw->smpsw_name, 753 AcpiFormatException(rv)); 754 755 return (ACPI_INTERRUPT_HANDLED); 756 } 757 758 /* 759 * acpi_fixed_button_pressed: 760 * 761 * Deal with a fixed button being pressed. 762 */ 763 void 764 acpi_fixed_button_pressed(void *context) 765 { 766 struct sysmon_pswitch *smpsw = context; 767 768 #ifdef ACPI_BUT_DEBUG 769 printf("%s: fixed button pressed, calling sysmon\n", 770 smpsw->smpsw_name); 771 #endif 772 773 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 774 } 775 776 /***************************************************************************** 777 * ACPI utility routines. 778 *****************************************************************************/ 779 780 /* 781 * acpi_eval_integer: 782 * 783 * Evaluate an integer object. 784 */ 785 ACPI_STATUS 786 acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp) 787 { 788 ACPI_STATUS rv; 789 ACPI_BUFFER buf; 790 ACPI_OBJECT param; 791 792 if (handle == NULL) 793 handle = ACPI_ROOT_OBJECT; 794 795 buf.Pointer = ¶m; 796 buf.Length = sizeof(param); 797 798 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 799 if (ACPI_SUCCESS(rv)) 800 *valp = param.Integer.Value; 801 802 return (rv); 803 } 804 805 /* 806 * acpi_eval_string: 807 * 808 * Evaluate a (Unicode) string object. 809 */ 810 ACPI_STATUS 811 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 812 { 813 ACPI_STATUS rv; 814 ACPI_BUFFER buf; 815 816 if (handle == NULL) 817 handle = ACPI_ROOT_OBJECT; 818 819 buf.Pointer = NULL; 820 buf.Length = ACPI_ALLOCATE_BUFFER; 821 822 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 823 if (ACPI_SUCCESS(rv)) { 824 ACPI_OBJECT *param = buf.Pointer; 825 char *ptr = param->String.Pointer; 826 size_t len = param->String.Length; 827 if ((*stringp = AcpiOsAllocate(len)) == NULL) 828 rv = AE_NO_MEMORY; 829 else 830 (void)memcpy(*stringp, ptr, len); 831 AcpiOsFree(param); 832 } 833 834 return (rv); 835 } 836 837 838 /* 839 * acpi_eval_struct: 840 * 841 * Evaluate a more complex structure. 842 * Caller must free buf.Pointer by AcpiOsFree(). 843 */ 844 ACPI_STATUS 845 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 846 { 847 ACPI_STATUS rv; 848 849 if (handle == NULL) 850 handle = ACPI_ROOT_OBJECT; 851 852 bufp->Pointer = NULL; 853 bufp->Length = ACPI_ALLOCATE_BUFFER; 854 855 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 856 857 return (rv); 858 } 859 860 /* 861 * acpi_get: 862 * 863 * Fetch data info the specified (empty) ACPI buffer. 864 * Caller must free buf.Pointer by AcpiOsFree(). 865 */ 866 ACPI_STATUS 867 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 868 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 869 { 870 buf->Pointer = NULL; 871 buf->Length = ACPI_ALLOCATE_BUFFER; 872 873 return ((*getit)(handle, buf)); 874 } 875 876 877 /* 878 * acpi_match_hid 879 * 880 * Match given ids against _HID and _CIDs 881 */ 882 int 883 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 884 { 885 int i; 886 887 while (*ids) { 888 if (ad->Valid & ACPI_VALID_HID) { 889 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 890 return (1); 891 } 892 893 if (ad->Valid & ACPI_VALID_CID) { 894 for (i = 0; i < ad->CompatibilityId.Count; i++) { 895 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 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 uint 1014 acpi_get_intr(ACPI_HANDLE handle) 1015 { 1016 ACPI_BUFFER ret; 1017 ACPI_STATUS rv; 1018 ACPI_RESOURCE *res; 1019 ACPI_RESOURCE_IRQ *irq; 1020 uint intr; 1021 1022 intr = -1; 1023 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1024 if (ACPI_FAILURE(rv)) 1025 return (intr); 1026 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1027 res = ACPI_NEXT_RESOURCE(res)) { 1028 if (res->Id == ACPI_RSTYPE_IRQ) { 1029 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1030 if (irq->NumberOfInterrupts == 1) 1031 intr = irq->Interrupts[0]; 1032 break; 1033 } 1034 } 1035 AcpiOsFree(ret.Pointer); 1036 return (intr); 1037 } 1038 1039 static void 1040 acpi_pci_set_line(int bus, int dev, int pin, int line) 1041 { 1042 ACPI_STATUS err; 1043 ACPI_PCI_ID pid; 1044 UINT32 intr, id, bhlc; 1045 int func, nfunc; 1046 1047 pid.Bus = bus; 1048 pid.Device = dev; 1049 pid.Function = 0; 1050 1051 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1052 if (err) 1053 return; 1054 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1055 nfunc = 8; 1056 else 1057 nfunc = 1; 1058 1059 for (func = 0; func < nfunc; func++) { 1060 pid.Function = func; 1061 1062 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1063 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1064 PCI_VENDOR(id) == 0) 1065 continue; 1066 1067 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1068 &intr, 32); 1069 if (err) { 1070 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1071 return; 1072 } 1073 if (pin == PCI_INTERRUPT_PIN(intr) && 1074 line != PCI_INTERRUPT_LINE(intr)) { 1075 #ifdef ACPI_DEBUG 1076 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1077 bus, dev, func, 1078 pin + '@', PCI_INTERRUPT_LINE(intr), 1079 line); 1080 #endif 1081 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1082 PCI_INTERRUPT_LINE_SHIFT); 1083 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1084 err = AcpiOsWritePciConfiguration(&pid, 1085 PCI_INTERRUPT_REG, intr, 32); 1086 if (err) { 1087 printf("AcpiOsWritePciConfiguration failed" 1088 " %d\n", err); 1089 return; 1090 } 1091 } 1092 } 1093 } 1094 1095 ACPI_STATUS 1096 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1097 void **status) 1098 { 1099 struct acpi_softc *sc = context; 1100 ACPI_STATUS rv; 1101 ACPI_BUFFER buf; 1102 UINT8 *Buffer; 1103 ACPI_PCI_ROUTING_TABLE *PrtElement; 1104 ACPI_HANDLE link; 1105 uint line; 1106 ACPI_INTEGER val; 1107 1108 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1109 if (ACPI_FAILURE(rv)) 1110 return (AE_OK); 1111 1112 /* 1113 * If at level 1, this is a PCI root bus. Try the _BBN method 1114 * to get the right PCI bus numbering for the following 1115 * busses (this is a depth-first walk). It may fail, 1116 * for example if there's only one root bus, but that 1117 * case should be ok, so we'll ignore that. 1118 */ 1119 if (level == 1) { 1120 rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val); 1121 if (!ACPI_FAILURE(rv)) { 1122 #ifdef ACPI_DEBUG 1123 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1124 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1125 ACPI_LOWORD(val)); 1126 #endif 1127 sc->sc_pci_bus = ACPI_LOWORD(val); 1128 } 1129 } 1130 1131 1132 #ifdef ACPI_DEBUG 1133 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1134 sc->sc_pci_bus, level); 1135 #endif 1136 1137 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1138 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1139 if (PrtElement->Length == 0) 1140 break; 1141 if (PrtElement->Source[0] == 0) 1142 continue; 1143 1144 rv = AcpiGetHandle(NULL, PrtElement->Source, &link); 1145 if (ACPI_FAILURE(rv)) 1146 continue; 1147 line = acpi_get_intr(link); 1148 if (line == -1) { 1149 #ifdef ACPI_DEBUG 1150 printf("%s: fixing up intr link %s\n", 1151 sc->sc_dev.dv_xname, PrtElement->Source); 1152 #endif 1153 rv = acpi_allocate_resources(link); 1154 if (ACPI_FAILURE(rv)) { 1155 printf("%s: interrupt allocation failed %s\n", 1156 sc->sc_dev.dv_xname, PrtElement->Source); 1157 continue; 1158 } 1159 line = acpi_get_intr(link); 1160 if (line == -1) { 1161 printf("%s: get intr failed %s\n", 1162 sc->sc_dev.dv_xname, PrtElement->Source); 1163 continue; 1164 } 1165 } 1166 1167 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1168 PrtElement->Pin + 1, line); 1169 } 1170 1171 sc->sc_pci_bus++; 1172 1173 AcpiOsFree(buf.Pointer); 1174 return (AE_OK); 1175 } 1176 #endif /* ACPI_PCI_FIXUP */ 1177 1178 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1179 /* XXX This very incomplete */ 1180 ACPI_STATUS 1181 acpi_allocate_resources(ACPI_HANDLE handle) 1182 { 1183 ACPI_BUFFER bufp, bufc, bufn; 1184 ACPI_RESOURCE *resp, *resc, *resn; 1185 ACPI_RESOURCE_IRQ *irq; 1186 ACPI_STATUS rv; 1187 uint delta; 1188 1189 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1190 if (ACPI_FAILURE(rv)) 1191 goto out; 1192 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1193 if (ACPI_FAILURE(rv)) { 1194 goto out1; 1195 } 1196 1197 bufn.Length = 1000; 1198 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1199 resp = bufp.Pointer; 1200 resc = bufc.Pointer; 1201 while (resc->Id != ACPI_RSTYPE_END_TAG && 1202 resp->Id != ACPI_RSTYPE_END_TAG) { 1203 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1204 resp = ACPI_NEXT_RESOURCE(resp); 1205 if (resp->Id == ACPI_RSTYPE_END_TAG) 1206 break; 1207 /* Found identical Id */ 1208 resn->Id = resc->Id; 1209 switch (resc->Id) { 1210 case ACPI_RSTYPE_IRQ: 1211 memcpy(&resn->Data, &resp->Data, 1212 sizeof(ACPI_RESOURCE_IRQ)); 1213 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1214 irq->Interrupts[0] = 1215 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1216 Interrupts[irq->NumberOfInterrupts-1]; 1217 irq->NumberOfInterrupts = 1; 1218 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1219 break; 1220 case ACPI_RSTYPE_IO: 1221 memcpy(&resn->Data, &resp->Data, 1222 sizeof(ACPI_RESOURCE_IO)); 1223 resn->Length = resp->Length; 1224 break; 1225 default: 1226 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1227 rv = AE_BAD_DATA; 1228 goto out2; 1229 } 1230 resc = ACPI_NEXT_RESOURCE(resc); 1231 resn = ACPI_NEXT_RESOURCE(resn); 1232 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1233 if (delta >= 1234 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1235 bufn.Length *= 2; 1236 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1237 M_ACPI, M_WAITOK); 1238 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1239 } 1240 } 1241 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1242 printf("acpi_allocate_resources: resc not exhausted\n"); 1243 rv = AE_BAD_DATA; 1244 goto out3; 1245 } 1246 1247 resn->Id = ACPI_RSTYPE_END_TAG; 1248 rv = AcpiSetCurrentResources(handle, &bufn); 1249 if (ACPI_FAILURE(rv)) { 1250 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1251 AcpiFormatException(rv)); 1252 } 1253 1254 out3: 1255 free(bufn.Pointer, M_ACPI); 1256 out2: 1257 AcpiOsFree(bufc.Pointer); 1258 out1: 1259 AcpiOsFree(bufp.Pointer); 1260 out: 1261 return rv; 1262 } 1263 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1264
Indexes created Tue Sep 23 02:09:52 GMT 2025