acpi.c revision 1.59.2.1
1 /* $NetBSD: acpi.c,v 1.59.2.1 2004/04/28 05:24:38 jmc 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 1.59.2.1 2004/04/28 05:24:38 jmc 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 } 295 296 /* early EC handler initialization if ECDT table is available */ 297 acpiec_early_attach(&sc->sc_dev); 298 299 rv = AcpiInitializeObjects(0); 300 if (ACPI_FAILURE(rv)) { 301 printf("%s: unable to initialize ACPI objects: %s\n", 302 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 303 return; 304 } 305 acpi_active = 1; 306 307 /* Our current state is "awake". */ 308 sc->sc_sleepstate = ACPI_STATE_S0; 309 310 /* Show SCI interrupt. */ 311 if (AcpiGbl_FADT != NULL) 312 printf("%s: SCI interrupting at int %d\n", 313 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 314 /* 315 * Check for fixed-hardware features. 316 */ 317 acpi_enable_fixed_events(sc); 318 319 /* 320 * Fix up PCI devices. 321 */ 322 #ifdef ACPI_PCI_FIXUP 323 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 324 acpi_pci_fixup(sc); 325 #endif 326 327 /* 328 * Scan the namespace and build our device tree. 329 */ 330 #ifdef ACPI_DEBUGGER 331 if (acpi_dbgr & ACPI_DBGR_PROBE) 332 acpi_osd_debugger(); 333 #endif 334 acpi_md_callback((struct device *)sc); 335 acpi_build_tree(sc); 336 337 /* 338 * Register a shutdown hook that disables certain ACPI 339 * events that might happen and confuse us while we're 340 * trying to shut down. 341 */ 342 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 343 if (sc->sc_sdhook == NULL) 344 printf("%s: WARNING: unable to register shutdown hook\n", 345 sc->sc_dev.dv_xname); 346 347 #ifdef ACPI_DEBUGGER 348 if (acpi_dbgr & ACPI_DBGR_RUNNING) 349 acpi_osd_debugger(); 350 #endif 351 } 352 353 /* 354 * acpi_shutdown: 355 * 356 * Shutdown hook for ACPI -- disable some events that 357 * might confuse us. 358 */ 359 void 360 acpi_shutdown(void *arg) 361 { 362 struct acpi_softc *sc = arg; 363 ACPI_STATUS rv; 364 365 rv = acpi_disable(sc); 366 if (ACPI_FAILURE(rv)) 367 printf("%s: WARNING: unable to disable ACPI: %s\n", 368 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 369 } 370 371 /* 372 * acpi_disable: 373 * 374 * Disable ACPI. 375 */ 376 ACPI_STATUS 377 acpi_disable(struct acpi_softc *sc) 378 { 379 ACPI_STATUS rv = AE_OK; 380 381 if (acpi_active) { 382 rv = AcpiDisable(); 383 if (ACPI_SUCCESS(rv)) 384 acpi_active = 0; 385 } 386 return (rv); 387 } 388 389 struct acpi_make_devnode_state { 390 struct acpi_softc *softc; 391 struct acpi_scope *scope; 392 }; 393 394 /* 395 * acpi_build_tree: 396 * 397 * Scan relevant portions of the ACPI namespace and attach 398 * child devices. 399 */ 400 void 401 acpi_build_tree(struct acpi_softc *sc) 402 { 403 static const char *scopes[] = { 404 "\\_PR_", /* ACPI 1.0 processor namespace */ 405 "\\_SB_", /* system bus namespace */ 406 "\\_SI_", /* system idicator namespace */ 407 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 408 NULL, 409 }; 410 struct acpi_attach_args aa; 411 struct acpi_make_devnode_state state; 412 struct acpi_scope *as; 413 struct acpi_devnode *ad; 414 ACPI_HANDLE parent; 415 ACPI_STATUS rv; 416 int i; 417 418 TAILQ_INIT(&sc->sc_scopes); 419 420 state.softc = sc; 421 422 /* 423 * Scan the namespace and build our tree. 424 */ 425 for (i = 0; scopes[i] != NULL; i++) { 426 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 427 as->as_name = scopes[i]; 428 TAILQ_INIT(&as->as_devnodes); 429 430 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 431 432 state.scope = as; 433 434 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 435 &parent); 436 if (ACPI_SUCCESS(rv)) { 437 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 438 acpi_make_devnode, &state, NULL); 439 } 440 441 /* Now, for this namespace, try and attach the devices. */ 442 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 443 aa.aa_node = ad; 444 aa.aa_iot = sc->sc_iot; 445 aa.aa_memt = sc->sc_memt; 446 aa.aa_pc = sc->sc_pc; 447 aa.aa_pciflags = sc->sc_pciflags; 448 aa.aa_ic = sc->sc_ic; 449 450 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 451 /* 452 * XXX We only attach devices which are: 453 * 454 * - present 455 * - enabled 456 * - functioning properly 457 * 458 * However, if enabled, it's decoding resources, 459 * so we should claim them, if possible. 460 * Requires changes to bus_space(9). 461 */ 462 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 463 ACPI_VALID_STA && 464 (ad->ad_devinfo->CurrentStatus & 465 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 466 ACPI_STA_DEV_OK)) != 467 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 468 ACPI_STA_DEV_OK)) 469 continue; 470 471 /* 472 * XXX Same problem as above... 473 */ 474 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 475 == 0) 476 continue; 477 } 478 479 ad->ad_device = config_found(&sc->sc_dev, 480 &aa, acpi_print); 481 } 482 } 483 } 484 485 #ifdef ACPI_ACTIVATE_DEV 486 static void 487 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 488 { 489 ACPI_STATUS rv; 490 ACPI_BUFFER buf; 491 492 buf.Pointer = NULL; 493 buf.Length = ACPI_ALLOCATE_BUFFER; 494 495 #ifdef ACPI_DEBUG 496 printf("acpi_activate_device: %s, old status=%x\n", 497 (*di)->HardwareId.Value, (*di)->CurrentStatus); 498 #endif 499 500 rv = acpi_allocate_resources(handle); 501 if (ACPI_FAILURE(rv)) { 502 printf("acpi: activate failed for %s\n", 503 (*di)->HardwareId.Value); 504 } else { 505 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 506 } 507 508 (void)AcpiGetObjectInfo(handle, &buf); 509 AcpiOsFree(*di); 510 *di = buf.Pointer; 511 512 #ifdef ACPI_DEBUG 513 printf("acpi_activate_device: %s, new status=%x\n", 514 (*di)->HardwareId.Value, (*di)->CurrentStatus); 515 #endif 516 } 517 #endif /* ACPI_ACTIVATE_DEV */ 518 519 /* 520 * acpi_make_devnode: 521 * 522 * Make an ACPI devnode. 523 */ 524 ACPI_STATUS 525 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 526 void **status) 527 { 528 struct acpi_make_devnode_state *state = context; 529 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 530 struct acpi_softc *sc = state->softc; 531 #endif 532 struct acpi_scope *as = state->scope; 533 struct acpi_devnode *ad; 534 ACPI_OBJECT_TYPE type; 535 ACPI_BUFFER buf; 536 ACPI_DEVICE_INFO *devinfo; 537 ACPI_STATUS rv; 538 539 rv = AcpiGetType(handle, &type); 540 if (ACPI_SUCCESS(rv)) { 541 buf.Pointer = NULL; 542 buf.Length = ACPI_ALLOCATE_BUFFER; 543 rv = AcpiGetObjectInfo(handle, &buf); 544 if (ACPI_FAILURE(rv)) { 545 #ifdef ACPI_DEBUG 546 printf("%s: AcpiGetObjectInfo failed: %s\n", 547 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 548 #endif 549 goto out; /* XXX why return OK */ 550 } 551 552 devinfo = buf.Pointer; 553 554 switch (type) { 555 case ACPI_TYPE_DEVICE: 556 #ifdef ACPI_ACTIVATE_DEV 557 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 558 (ACPI_VALID_STA|ACPI_VALID_HID) && 559 (devinfo->CurrentStatus & 560 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 561 ACPI_STA_DEV_PRESENT) 562 acpi_activate_device(handle, &devinfo); 563 564 /* FALLTHROUGH */ 565 #endif 566 567 case ACPI_TYPE_PROCESSOR: 568 case ACPI_TYPE_THERMAL: 569 case ACPI_TYPE_POWER: 570 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 571 if (ad == NULL) 572 return (AE_NO_MEMORY); 573 574 ad->ad_devinfo = devinfo; 575 ad->ad_handle = handle; 576 ad->ad_level = level; 577 ad->ad_scope = as; 578 ad->ad_type = type; 579 580 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 581 582 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 583 goto out; 584 585 #ifdef ACPI_EXTRA_DEBUG 586 printf("%s: HID %s found in scope %s level %d\n", 587 sc->sc_dev.dv_xname, 588 ad->ad_devinfo->HardwareId.Value, 589 as->as_name, ad->ad_level); 590 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 591 printf(" UID %s\n", 592 ad->ad_devinfo->UniqueId.Value); 593 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 594 printf(" ADR 0x%016qx\n", 595 ad->ad_devinfo->Address); 596 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 597 printf(" STA 0x%08x\n", 598 ad->ad_devinfo->CurrentStatus); 599 #endif 600 } 601 } 602 out: 603 return (AE_OK); 604 } 605 606 /* 607 * acpi_print: 608 * 609 * Autoconfiguration print routine. 610 */ 611 int 612 acpi_print(void *aux, const char *pnp) 613 { 614 struct acpi_attach_args *aa = aux; 615 ACPI_STATUS rv; 616 617 if (pnp) { 618 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 619 char *pnpstr = 620 aa->aa_node->ad_devinfo->HardwareId.Value; 621 char *str; 622 623 aprint_normal("%s ", pnpstr); 624 rv = acpi_eval_string(aa->aa_node->ad_handle, 625 "_STR", &str); 626 if (ACPI_SUCCESS(rv)) { 627 aprint_normal("[%s] ", str); 628 AcpiOsFree(str); 629 } 630 #ifdef ACPIVERBOSE 631 else { 632 int i; 633 634 for (i = 0; i < sizeof(acpi_knowndevs) / 635 sizeof(acpi_knowndevs[0]); i++) { 636 if (strcmp(acpi_knowndevs[i].pnp, 637 pnpstr) == 0) { 638 printf("[%s] ", 639 acpi_knowndevs[i].str); 640 } 641 } 642 } 643 644 #endif 645 } else { 646 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 647 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 648 aa->aa_node->ad_devinfo->Type); 649 } 650 aprint_normal("at %s", pnp); 651 } else { 652 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 653 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 654 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 655 char *uid; 656 657 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 658 if (uid[0] == '\0') 659 uid = "<null>"; 660 aprint_normal("-%s", uid); 661 } 662 aprint_normal(")"); 663 } 664 } 665 666 return (UNCONF); 667 } 668 669 /***************************************************************************** 670 * ACPI fixed-hardware feature handlers 671 *****************************************************************************/ 672 673 UINT32 acpi_fixed_button_handler(void *); 674 void acpi_fixed_button_pressed(void *); 675 676 /* 677 * acpi_enable_fixed_events: 678 * 679 * Enable any fixed-hardware feature handlers. 680 */ 681 void 682 acpi_enable_fixed_events(struct acpi_softc *sc) 683 { 684 static int beenhere; 685 ACPI_STATUS rv; 686 687 KASSERT(beenhere == 0); 688 beenhere = 1; 689 690 /* 691 * Check for fixed-hardware buttons. 692 */ 693 694 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 695 printf("%s: fixed-feature power button present\n", 696 sc->sc_dev.dv_xname); 697 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 698 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 699 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 700 printf("%s: unable to register fixed power button " 701 "with sysmon\n", sc->sc_dev.dv_xname); 702 } else { 703 rv = AcpiInstallFixedEventHandler( 704 ACPI_EVENT_POWER_BUTTON, 705 acpi_fixed_button_handler, &sc->sc_smpsw_power); 706 if (ACPI_FAILURE(rv)) { 707 printf("%s: unable to install handler for " 708 "fixed power button: %s\n", 709 sc->sc_dev.dv_xname, 710 AcpiFormatException(rv)); 711 } 712 } 713 } 714 715 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 716 printf("%s: fixed-feature sleep button present\n", 717 sc->sc_dev.dv_xname); 718 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 719 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 720 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 721 printf("%s: unable to register fixed sleep button " 722 "with sysmon\n", sc->sc_dev.dv_xname); 723 } else { 724 rv = AcpiInstallFixedEventHandler( 725 ACPI_EVENT_SLEEP_BUTTON, 726 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 727 if (ACPI_FAILURE(rv)) { 728 printf("%s: unable to install handler for " 729 "fixed sleep button: %s\n", 730 sc->sc_dev.dv_xname, 731 AcpiFormatException(rv)); 732 } 733 } 734 } 735 } 736 737 /* 738 * acpi_fixed_button_handler: 739 * 740 * Event handler for the fixed buttons. 741 */ 742 UINT32 743 acpi_fixed_button_handler(void *context) 744 { 745 struct sysmon_pswitch *smpsw = context; 746 int rv; 747 748 #ifdef ACPI_BUT_DEBUG 749 printf("%s: fixed button handler\n", smpsw->smpsw_name); 750 #endif 751 752 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 753 acpi_fixed_button_pressed, smpsw); 754 if (ACPI_FAILURE(rv)) 755 printf("%s: WARNING: unable to queue fixed button pressed " 756 "callback: %s\n", smpsw->smpsw_name, 757 AcpiFormatException(rv)); 758 759 return (ACPI_INTERRUPT_HANDLED); 760 } 761 762 /* 763 * acpi_fixed_button_pressed: 764 * 765 * Deal with a fixed button being pressed. 766 */ 767 void 768 acpi_fixed_button_pressed(void *context) 769 { 770 struct sysmon_pswitch *smpsw = context; 771 772 #ifdef ACPI_BUT_DEBUG 773 printf("%s: fixed button pressed, calling sysmon\n", 774 smpsw->smpsw_name); 775 #endif 776 777 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 778 } 779 780 /***************************************************************************** 781 * ACPI utility routines. 782 *****************************************************************************/ 783 784 /* 785 * acpi_eval_integer: 786 * 787 * Evaluate an integer object. 788 */ 789 ACPI_STATUS 790 acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp) 791 { 792 ACPI_STATUS rv; 793 ACPI_BUFFER buf; 794 ACPI_OBJECT param; 795 796 if (handle == NULL) 797 handle = ACPI_ROOT_OBJECT; 798 799 buf.Pointer = ¶m; 800 buf.Length = sizeof(param); 801 802 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 803 if (ACPI_SUCCESS(rv)) 804 *valp = param.Integer.Value; 805 806 return (rv); 807 } 808 809 /* 810 * acpi_eval_string: 811 * 812 * Evaluate a (Unicode) string object. 813 */ 814 ACPI_STATUS 815 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 816 { 817 ACPI_STATUS rv; 818 ACPI_BUFFER buf; 819 820 if (handle == NULL) 821 handle = ACPI_ROOT_OBJECT; 822 823 buf.Pointer = NULL; 824 buf.Length = ACPI_ALLOCATE_BUFFER; 825 826 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 827 if (ACPI_SUCCESS(rv)) { 828 ACPI_OBJECT *param = buf.Pointer; 829 char *ptr = param->String.Pointer; 830 size_t len = param->String.Length; 831 if ((*stringp = AcpiOsAllocate(len)) == NULL) 832 rv = AE_NO_MEMORY; 833 else 834 (void)memcpy(*stringp, ptr, len); 835 AcpiOsFree(param); 836 } 837 838 return (rv); 839 } 840 841 842 /* 843 * acpi_eval_struct: 844 * 845 * Evaluate a more complex structure. 846 * Caller must free buf.Pointer by AcpiOsFree(). 847 */ 848 ACPI_STATUS 849 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 850 { 851 ACPI_STATUS rv; 852 853 if (handle == NULL) 854 handle = ACPI_ROOT_OBJECT; 855 856 bufp->Pointer = NULL; 857 bufp->Length = ACPI_ALLOCATE_BUFFER; 858 859 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 860 861 return (rv); 862 } 863 864 /* 865 * acpi_get: 866 * 867 * Fetch data info the specified (empty) ACPI buffer. 868 * Caller must free buf.Pointer by AcpiOsFree(). 869 */ 870 ACPI_STATUS 871 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 872 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 873 { 874 buf->Pointer = NULL; 875 buf->Length = ACPI_ALLOCATE_BUFFER; 876 877 return ((*getit)(handle, buf)); 878 } 879 880 881 /* 882 * acpi_match_hid 883 * 884 * Match given ids against _HID and _CIDs 885 */ 886 int 887 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 888 { 889 int i; 890 891 while (*ids) { 892 if (ad->Valid & ACPI_VALID_HID) { 893 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 894 return (1); 895 } 896 897 if (ad->Valid & ACPI_VALID_CID) { 898 for (i = 0; i < ad->CompatibilityId.Count; i++) { 899 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 900 return (1); 901 } 902 } 903 ids++; 904 } 905 906 return (0); 907 } 908 909 910 /***************************************************************************** 911 * ACPI sleep support. 912 *****************************************************************************/ 913 914 static int 915 is_available_state(struct acpi_softc *sc, int state) 916 { 917 UINT8 type_a, type_b; 918 919 return (ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 920 &type_a, &type_b))); 921 } 922 923 /* 924 * acpi_enter_sleep_state: 925 * 926 * enter to the specified sleep state. 927 */ 928 929 ACPI_STATUS 930 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 931 { 932 int s; 933 ACPI_STATUS ret = AE_OK; 934 935 switch (state) { 936 case ACPI_STATE_S0: 937 break; 938 case ACPI_STATE_S1: 939 case ACPI_STATE_S2: 940 case ACPI_STATE_S3: 941 case ACPI_STATE_S4: 942 if (!is_available_state(sc, state)) { 943 printf("acpi: cannot enter the sleep state (%d).\n", 944 state); 945 break; 946 } 947 ret = AcpiEnterSleepStatePrep(state); 948 if (ACPI_FAILURE(ret)) { 949 printf("acpi: failed preparing to sleep (%s)\n", 950 AcpiFormatException(ret)); 951 break; 952 } 953 if (state==ACPI_STATE_S1) { 954 /* just enter the state */ 955 acpi_md_OsDisableInterrupt(); 956 AcpiEnterSleepState((UINT8)state); 957 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 958 } else { 959 /* XXX: powerhooks(9) framework is too poor to 960 * support ACPI sleep state... 961 */ 962 dopowerhooks(PWR_SOFTSUSPEND); 963 s = splhigh(); 964 dopowerhooks(PWR_SUSPEND); 965 acpi_md_sleep(state); 966 dopowerhooks(PWR_RESUME); 967 splx(s); 968 dopowerhooks(PWR_SOFTRESUME); 969 if (state==ACPI_STATE_S4) 970 AcpiEnable(); 971 } 972 AcpiLeaveSleepState((UINT8)state); 973 break; 974 case ACPI_STATE_S5: 975 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 976 if (ACPI_FAILURE(ret)) { 977 printf("acpi: failed preparing to sleep (%s)\n", 978 AcpiFormatException(ret)); 979 break; 980 } 981 acpi_md_OsDisableInterrupt(); 982 AcpiEnterSleepState(ACPI_STATE_S5); 983 printf("WARNING: powerdown failed!\n"); 984 break; 985 } 986 987 return (ret); 988 } 989 990 #ifdef ACPI_PCI_FIXUP 991 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 992 /* 993 * acpi_pci_fixup: 994 * 995 * Set up PCI devices that BIOS didn't handle right. 996 * Iterate through all devices and try to get the _PTR 997 * (PCI Routing Table). If it exists then make sure all 998 * interrupt links that it uses are working. 999 */ 1000 void 1001 acpi_pci_fixup(struct acpi_softc *sc) 1002 { 1003 ACPI_HANDLE parent; 1004 ACPI_STATUS rv; 1005 1006 #ifdef ACPI_DEBUG 1007 printf("acpi_pci_fixup starts:\n"); 1008 #endif 1009 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent); 1010 if (ACPI_FAILURE(rv)) 1011 return; 1012 sc->sc_pci_bus = 0; 1013 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1014 acpi_pci_fixup_bus, sc, NULL); 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_INTEGER val; 1111 1112 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1113 if (ACPI_FAILURE(rv)) 1114 return (AE_OK); 1115 1116 /* 1117 * If at level 1, this is a PCI root bus. Try the _BBN method 1118 * to get the right PCI bus numbering for the following 1119 * busses (this is a depth-first walk). It may fail, 1120 * for example if there's only one root bus, but that 1121 * case should be ok, so we'll ignore that. 1122 */ 1123 if (level == 1) { 1124 rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val); 1125 if (!ACPI_FAILURE(rv)) { 1126 #ifdef ACPI_DEBUG 1127 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1128 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1129 ACPI_LOWORD(val)); 1130 #endif 1131 sc->sc_pci_bus = ACPI_LOWORD(val); 1132 } 1133 } 1134 1135 1136 #ifdef ACPI_DEBUG 1137 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1138 sc->sc_pci_bus, level); 1139 #endif 1140 1141 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1142 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1143 if (PrtElement->Length == 0) 1144 break; 1145 if (PrtElement->Source[0] == 0) 1146 continue; 1147 1148 rv = AcpiGetHandle(NULL, PrtElement->Source, &link); 1149 if (ACPI_FAILURE(rv)) 1150 continue; 1151 line = acpi_get_intr(link); 1152 if (line == -1) { 1153 #ifdef ACPI_DEBUG 1154 printf("%s: fixing up intr link %s\n", 1155 sc->sc_dev.dv_xname, PrtElement->Source); 1156 #endif 1157 rv = acpi_allocate_resources(link); 1158 if (ACPI_FAILURE(rv)) { 1159 printf("%s: interrupt allocation failed %s\n", 1160 sc->sc_dev.dv_xname, PrtElement->Source); 1161 continue; 1162 } 1163 line = acpi_get_intr(link); 1164 if (line == -1) { 1165 printf("%s: get intr failed %s\n", 1166 sc->sc_dev.dv_xname, PrtElement->Source); 1167 continue; 1168 } 1169 } 1170 1171 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1172 PrtElement->Pin + 1, line); 1173 } 1174 1175 sc->sc_pci_bus++; 1176 1177 AcpiOsFree(buf.Pointer); 1178 return (AE_OK); 1179 } 1180 #endif /* ACPI_PCI_FIXUP */ 1181 1182 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1183 /* XXX This very incomplete */ 1184 ACPI_STATUS 1185 acpi_allocate_resources(ACPI_HANDLE handle) 1186 { 1187 ACPI_BUFFER bufp, bufc, bufn; 1188 ACPI_RESOURCE *resp, *resc, *resn; 1189 ACPI_RESOURCE_IRQ *irq; 1190 ACPI_STATUS rv; 1191 uint delta; 1192 1193 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1194 if (ACPI_FAILURE(rv)) 1195 goto out; 1196 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1197 if (ACPI_FAILURE(rv)) { 1198 goto out1; 1199 } 1200 1201 bufn.Length = 1000; 1202 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1203 resp = bufp.Pointer; 1204 resc = bufc.Pointer; 1205 while (resc->Id != ACPI_RSTYPE_END_TAG && 1206 resp->Id != ACPI_RSTYPE_END_TAG) { 1207 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1208 resp = ACPI_NEXT_RESOURCE(resp); 1209 if (resp->Id == ACPI_RSTYPE_END_TAG) 1210 break; 1211 /* Found identical Id */ 1212 resn->Id = resc->Id; 1213 switch (resc->Id) { 1214 case ACPI_RSTYPE_IRQ: 1215 memcpy(&resn->Data, &resp->Data, 1216 sizeof(ACPI_RESOURCE_IRQ)); 1217 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1218 irq->Interrupts[0] = 1219 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1220 Interrupts[irq->NumberOfInterrupts-1]; 1221 irq->NumberOfInterrupts = 1; 1222 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1223 break; 1224 case ACPI_RSTYPE_IO: 1225 memcpy(&resn->Data, &resp->Data, 1226 sizeof(ACPI_RESOURCE_IO)); 1227 resn->Length = resp->Length; 1228 break; 1229 default: 1230 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1231 rv = AE_BAD_DATA; 1232 goto out2; 1233 } 1234 resc = ACPI_NEXT_RESOURCE(resc); 1235 resn = ACPI_NEXT_RESOURCE(resn); 1236 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1237 if (delta >= 1238 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1239 bufn.Length *= 2; 1240 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1241 M_ACPI, M_WAITOK); 1242 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1243 } 1244 } 1245 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1246 printf("acpi_allocate_resources: resc not exhausted\n"); 1247 rv = AE_BAD_DATA; 1248 goto out3; 1249 } 1250 1251 resn->Id = ACPI_RSTYPE_END_TAG; 1252 rv = AcpiSetCurrentResources(handle, &bufn); 1253 if (ACPI_FAILURE(rv)) { 1254 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1255 AcpiFormatException(rv)); 1256 } 1257 1258 out3: 1259 free(bufn.Pointer, M_ACPI); 1260 out2: 1261 AcpiOsFree(bufc.Pointer); 1262 out1: 1263 AcpiOsFree(bufp.Pointer); 1264 out: 1265 return rv; 1266 } 1267 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1268
Indexes created Wed Oct 01 19:09:53 GMT 2025