acpi.c revision 1.36.2.2
1 /* $NetBSD: acpi.c,v 1.36.2.2 2004/09/03 12:45:17 skrll 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 1.36.2.2 2004/09/03 12:45:17 skrll 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 static int acpi_match(struct device *, struct cfdata *, void *); 118 static void acpi_attach(struct device *, struct device *, void *); 119 120 static 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 static void acpi_shutdown(void *); 150 static ACPI_STATUS acpi_disable(struct acpi_softc *sc); 151 static void acpi_build_tree(struct acpi_softc *); 152 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 153 154 static 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 static 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 static int 224 acpi_match(struct device *parent, struct cfdata *match, void *aux) 225 { 226 /* 227 * XXX Check other locators? Hard to know -- machine 228 * dependent code has already checked for the presence 229 * of ACPI by calling acpi_probe(), so I suppose we 230 * don't really have to do anything else. 231 */ 232 return 1; 233 } 234 235 /* 236 * acpi_attach: 237 * 238 * Autoconfiguration `attach' routine. Finish initializing 239 * ACPICA (some initialization was done in acpi_probe(), 240 * which was required to check for the presence of ACPI), 241 * and enable the ACPI subsystem. 242 */ 243 static void 244 acpi_attach(struct device *parent, struct device *self, void *aux) 245 { 246 struct acpi_softc *sc = (void *) self; 247 struct acpibus_attach_args *aa = aux; 248 ACPI_STATUS rv; 249 250 printf("\n"); 251 252 if (acpi_softc != NULL) 253 panic("acpi_attach: ACPI has already been attached"); 254 255 sysmon_power_settype("acpi"); 256 257 printf("%s: using Intel ACPI CA subsystem version %08x\n", 258 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 259 260 printf("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 261 sc->sc_dev.dv_xname, 262 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 263 AcpiGbl_XSDT->OemRevision, 264 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 265 266 sc->sc_quirks = acpi_find_quirks(); 267 268 sc->sc_iot = aa->aa_iot; 269 sc->sc_memt = aa->aa_memt; 270 sc->sc_pc = aa->aa_pc; 271 sc->sc_pciflags = aa->aa_pciflags; 272 sc->sc_ic = aa->aa_ic; 273 274 acpi_softc = sc; 275 276 /* 277 * Bring ACPI on-line. 278 */ 279 #ifdef ACPI_DEBUGGER 280 if (acpi_dbgr & ACPI_DBGR_ENABLE) 281 acpi_osd_debugger(); 282 #endif 283 284 rv = AcpiEnableSubsystem(0); 285 if (ACPI_FAILURE(rv)) { 286 printf("%s: unable to enable ACPI: %s\n", 287 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 288 return; 289 } 290 291 /* early EC handler initialization if ECDT table is available */ 292 #if NACPIEC > 0 293 acpiec_early_attach(&sc->sc_dev); 294 #endif 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 static 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 static ACPI_STATUS 374 acpi_disable(struct acpi_softc *sc) 375 { 376 ACPI_STATUS rv = AE_OK; 377 378 #ifdef ACPI_DISABLE_ON_POWEROFF 379 if (acpi_active) { 380 rv = AcpiDisable(); 381 if (ACPI_SUCCESS(rv)) 382 acpi_active = 0; 383 } 384 #endif 385 return rv; 386 } 387 388 struct acpi_make_devnode_state { 389 struct acpi_softc *softc; 390 struct acpi_scope *scope; 391 }; 392 393 /* 394 * acpi_build_tree: 395 * 396 * Scan relevant portions of the ACPI namespace and attach 397 * child devices. 398 */ 399 static void 400 acpi_build_tree(struct acpi_softc *sc) 401 { 402 static const char *scopes[] = { 403 "\\_PR_", /* ACPI 1.0 processor namespace */ 404 "\\_SB_", /* system bus namespace */ 405 "\\_SI_", /* system idicator namespace */ 406 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 407 NULL, 408 }; 409 struct acpi_attach_args aa; 410 struct acpi_make_devnode_state state; 411 struct acpi_scope *as; 412 struct acpi_devnode *ad; 413 ACPI_HANDLE parent; 414 ACPI_STATUS rv; 415 int i; 416 417 TAILQ_INIT(&sc->sc_scopes); 418 419 state.softc = sc; 420 421 /* 422 * Scan the namespace and build our tree. 423 */ 424 for (i = 0; scopes[i] != NULL; i++) { 425 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 426 as->as_name = scopes[i]; 427 TAILQ_INIT(&as->as_devnodes); 428 429 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 430 431 state.scope = as; 432 433 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 434 &parent); 435 if (ACPI_SUCCESS(rv)) { 436 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 437 acpi_make_devnode, &state, NULL); 438 } 439 440 /* Now, for this namespace, try and attach the devices. */ 441 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 442 aa.aa_node = ad; 443 aa.aa_iot = sc->sc_iot; 444 aa.aa_memt = sc->sc_memt; 445 aa.aa_pc = sc->sc_pc; 446 aa.aa_pciflags = sc->sc_pciflags; 447 aa.aa_ic = sc->sc_ic; 448 449 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 450 /* 451 * XXX We only attach devices which are: 452 * 453 * - present 454 * - enabled 455 * - functioning properly 456 * 457 * However, if enabled, it's decoding resources, 458 * so we should claim them, if possible. 459 * Requires changes to bus_space(9). 460 */ 461 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 462 ACPI_VALID_STA && 463 (ad->ad_devinfo->CurrentStatus & 464 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 465 ACPI_STA_DEV_OK)) != 466 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 467 ACPI_STA_DEV_OK)) 468 continue; 469 470 /* 471 * XXX Same problem as above... 472 */ 473 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 474 == 0) 475 continue; 476 } 477 478 ad->ad_device = config_found(&sc->sc_dev, 479 &aa, acpi_print); 480 } 481 } 482 } 483 484 #ifdef ACPI_ACTIVATE_DEV 485 static void 486 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 487 { 488 ACPI_STATUS rv; 489 ACPI_BUFFER buf; 490 491 buf.Pointer = NULL; 492 buf.Length = ACPI_ALLOCATE_BUFFER; 493 494 #ifdef ACPI_DEBUG 495 printf("acpi_activate_device: %s, old status=%x\n", 496 (*di)->HardwareId.Value, (*di)->CurrentStatus); 497 #endif 498 499 rv = acpi_allocate_resources(handle); 500 if (ACPI_FAILURE(rv)) { 501 printf("acpi: activate failed for %s\n", 502 (*di)->HardwareId.Value); 503 } else { 504 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 505 } 506 507 (void)AcpiGetObjectInfo(handle, &buf); 508 AcpiOsFree(*di); 509 *di = buf.Pointer; 510 511 #ifdef ACPI_DEBUG 512 printf("acpi_activate_device: %s, new status=%x\n", 513 (*di)->HardwareId.Value, (*di)->CurrentStatus); 514 #endif 515 } 516 #endif /* ACPI_ACTIVATE_DEV */ 517 518 /* 519 * acpi_make_devnode: 520 * 521 * Make an ACPI devnode. 522 */ 523 static ACPI_STATUS 524 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 525 void **status) 526 { 527 struct acpi_make_devnode_state *state = context; 528 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 529 struct acpi_softc *sc = state->softc; 530 #endif 531 struct acpi_scope *as = state->scope; 532 struct acpi_devnode *ad; 533 ACPI_OBJECT_TYPE type; 534 ACPI_BUFFER buf; 535 ACPI_DEVICE_INFO *devinfo; 536 ACPI_STATUS rv; 537 538 rv = AcpiGetType(handle, &type); 539 if (ACPI_SUCCESS(rv)) { 540 buf.Pointer = NULL; 541 buf.Length = ACPI_ALLOCATE_BUFFER; 542 rv = AcpiGetObjectInfo(handle, &buf); 543 if (ACPI_FAILURE(rv)) { 544 #ifdef ACPI_DEBUG 545 printf("%s: AcpiGetObjectInfo failed: %s\n", 546 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 547 #endif 548 goto out; /* XXX why return OK */ 549 } 550 551 devinfo = buf.Pointer; 552 553 switch (type) { 554 case ACPI_TYPE_DEVICE: 555 #ifdef ACPI_ACTIVATE_DEV 556 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 557 (ACPI_VALID_STA|ACPI_VALID_HID) && 558 (devinfo->CurrentStatus & 559 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 560 ACPI_STA_DEV_PRESENT) 561 acpi_activate_device(handle, &devinfo); 562 563 /* FALLTHROUGH */ 564 #endif 565 566 case ACPI_TYPE_PROCESSOR: 567 case ACPI_TYPE_THERMAL: 568 case ACPI_TYPE_POWER: 569 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 570 if (ad == NULL) 571 return AE_NO_MEMORY; 572 573 ad->ad_devinfo = devinfo; 574 ad->ad_handle = handle; 575 ad->ad_level = level; 576 ad->ad_scope = as; 577 ad->ad_type = type; 578 579 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 580 581 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 582 goto out; 583 584 #ifdef ACPI_EXTRA_DEBUG 585 printf("%s: HID %s found in scope %s level %d\n", 586 sc->sc_dev.dv_xname, 587 ad->ad_devinfo->HardwareId.Value, 588 as->as_name, ad->ad_level); 589 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 590 printf(" UID %s\n", 591 ad->ad_devinfo->UniqueId.Value); 592 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 593 printf(" ADR 0x%016qx\n", 594 ad->ad_devinfo->Address); 595 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 596 printf(" STA 0x%08x\n", 597 ad->ad_devinfo->CurrentStatus); 598 #endif 599 } 600 } 601 out: 602 return AE_OK; 603 } 604 605 /* 606 * acpi_print: 607 * 608 * Autoconfiguration print routine. 609 */ 610 static int 611 acpi_print(void *aux, const char *pnp) 612 { 613 struct acpi_attach_args *aa = aux; 614 ACPI_STATUS rv; 615 616 if (pnp) { 617 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 618 char *pnpstr = 619 aa->aa_node->ad_devinfo->HardwareId.Value; 620 char *str; 621 622 aprint_normal("%s ", pnpstr); 623 rv = acpi_eval_string(aa->aa_node->ad_handle, 624 "_STR", &str); 625 if (ACPI_SUCCESS(rv)) { 626 aprint_normal("[%s] ", str); 627 AcpiOsFree(str); 628 } 629 #ifdef ACPIVERBOSE 630 else { 631 int i; 632 633 for (i = 0; i < sizeof(acpi_knowndevs) / 634 sizeof(acpi_knowndevs[0]); i++) { 635 if (strcmp(acpi_knowndevs[i].pnp, 636 pnpstr) == 0) { 637 printf("[%s] ", 638 acpi_knowndevs[i].str); 639 } 640 } 641 } 642 643 #endif 644 } else { 645 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 646 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 647 aa->aa_node->ad_devinfo->Type); 648 } 649 aprint_normal("at %s", pnp); 650 } else { 651 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 652 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 653 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 654 char *uid; 655 656 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 657 if (uid[0] == '\0') 658 uid = "<null>"; 659 aprint_normal("-%s", uid); 660 } 661 aprint_normal(")"); 662 } 663 } 664 665 return UNCONF; 666 } 667 668 /***************************************************************************** 669 * ACPI fixed-hardware feature handlers 670 *****************************************************************************/ 671 672 static UINT32 acpi_fixed_button_handler(void *); 673 static void acpi_fixed_button_pressed(void *); 674 675 /* 676 * acpi_enable_fixed_events: 677 * 678 * Enable any fixed-hardware feature handlers. 679 */ 680 static void 681 acpi_enable_fixed_events(struct acpi_softc *sc) 682 { 683 static int beenhere; 684 ACPI_STATUS rv; 685 686 KASSERT(beenhere == 0); 687 beenhere = 1; 688 689 /* 690 * Check for fixed-hardware buttons. 691 */ 692 693 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 694 printf("%s: fixed-feature power button present\n", 695 sc->sc_dev.dv_xname); 696 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 697 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 698 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 699 printf("%s: unable to register fixed power button " 700 "with sysmon\n", sc->sc_dev.dv_xname); 701 } else { 702 rv = AcpiInstallFixedEventHandler( 703 ACPI_EVENT_POWER_BUTTON, 704 acpi_fixed_button_handler, &sc->sc_smpsw_power); 705 if (ACPI_FAILURE(rv)) { 706 printf("%s: unable to install handler for " 707 "fixed power button: %s\n", 708 sc->sc_dev.dv_xname, 709 AcpiFormatException(rv)); 710 } 711 } 712 } 713 714 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 715 printf("%s: fixed-feature sleep button present\n", 716 sc->sc_dev.dv_xname); 717 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 718 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 719 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 720 printf("%s: unable to register fixed sleep button " 721 "with sysmon\n", sc->sc_dev.dv_xname); 722 } else { 723 rv = AcpiInstallFixedEventHandler( 724 ACPI_EVENT_SLEEP_BUTTON, 725 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 726 if (ACPI_FAILURE(rv)) { 727 printf("%s: unable to install handler for " 728 "fixed sleep button: %s\n", 729 sc->sc_dev.dv_xname, 730 AcpiFormatException(rv)); 731 } 732 } 733 } 734 } 735 736 /* 737 * acpi_fixed_button_handler: 738 * 739 * Event handler for the fixed buttons. 740 */ 741 static UINT32 742 acpi_fixed_button_handler(void *context) 743 { 744 struct sysmon_pswitch *smpsw = context; 745 int rv; 746 747 #ifdef ACPI_BUT_DEBUG 748 printf("%s: fixed button handler\n", smpsw->smpsw_name); 749 #endif 750 751 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 752 acpi_fixed_button_pressed, smpsw); 753 if (ACPI_FAILURE(rv)) 754 printf("%s: WARNING: unable to queue fixed button pressed " 755 "callback: %s\n", smpsw->smpsw_name, 756 AcpiFormatException(rv)); 757 758 return ACPI_INTERRUPT_HANDLED; 759 } 760 761 /* 762 * acpi_fixed_button_pressed: 763 * 764 * Deal with a fixed button being pressed. 765 */ 766 static void 767 acpi_fixed_button_pressed(void *context) 768 { 769 struct sysmon_pswitch *smpsw = context; 770 771 #ifdef ACPI_BUT_DEBUG 772 printf("%s: fixed button pressed, calling sysmon\n", 773 smpsw->smpsw_name); 774 #endif 775 776 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 777 } 778 779 /***************************************************************************** 780 * ACPI utility routines. 781 *****************************************************************************/ 782 783 /* 784 * acpi_eval_integer: 785 * 786 * Evaluate an integer object. 787 */ 788 ACPI_STATUS 789 acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp) 790 { 791 ACPI_STATUS rv; 792 ACPI_BUFFER buf; 793 ACPI_OBJECT param; 794 795 if (handle == NULL) 796 handle = ACPI_ROOT_OBJECT; 797 798 buf.Pointer = ¶m; 799 buf.Length = sizeof(param); 800 801 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 802 if (ACPI_SUCCESS(rv)) 803 *valp = param.Integer.Value; 804 805 return rv; 806 } 807 808 /* 809 * acpi_eval_string: 810 * 811 * Evaluate a (Unicode) string object. 812 */ 813 ACPI_STATUS 814 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 815 { 816 ACPI_STATUS rv; 817 ACPI_BUFFER buf; 818 819 if (handle == NULL) 820 handle = ACPI_ROOT_OBJECT; 821 822 buf.Pointer = NULL; 823 buf.Length = ACPI_ALLOCATE_BUFFER; 824 825 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 826 if (ACPI_SUCCESS(rv)) { 827 ACPI_OBJECT *param = buf.Pointer; 828 char *ptr = param->String.Pointer; 829 size_t len = param->String.Length; 830 if ((*stringp = AcpiOsAllocate(len)) == NULL) 831 rv = AE_NO_MEMORY; 832 else 833 (void)memcpy(*stringp, ptr, len); 834 AcpiOsFree(param); 835 } 836 837 return rv; 838 } 839 840 841 /* 842 * acpi_eval_struct: 843 * 844 * Evaluate a more complex structure. 845 * Caller must free buf.Pointer by AcpiOsFree(). 846 */ 847 ACPI_STATUS 848 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 849 { 850 ACPI_STATUS rv; 851 852 if (handle == NULL) 853 handle = ACPI_ROOT_OBJECT; 854 855 bufp->Pointer = NULL; 856 bufp->Length = ACPI_ALLOCATE_BUFFER; 857 858 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 859 860 return rv; 861 } 862 863 /* 864 * acpi_foreach_package_object: 865 * 866 * Iterate over all objects in a in a packages and pass then all 867 * to a function. If the called function returns non AE_OK, the 868 * iteration is stopped and that value is returned. 869 */ 870 871 ACPI_STATUS 872 acpi_foreach_package_object(ACPI_OBJECT *pkg, 873 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 874 void *arg) 875 { 876 ACPI_STATUS rv = AE_OK; 877 int i; 878 879 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 880 return AE_BAD_PARAMETER; 881 882 for (i = 0; i < pkg->Package.Count; i++) { 883 rv = (*func)(&pkg->Package.Elements[i], arg); 884 if (ACPI_FAILURE(rv)) 885 break; 886 } 887 888 return rv; 889 } 890 891 const char * 892 acpi_name(ACPI_HANDLE handle) 893 { 894 static char buffer[80]; 895 ACPI_BUFFER buf; 896 ACPI_STATUS rv; 897 898 buf.Length = sizeof(buffer); 899 buf.Pointer = buffer; 900 901 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 902 if (ACPI_FAILURE(rv)) 903 return "(unknown acpi path)"; 904 return buffer; 905 } 906 907 /* 908 * acpi_get: 909 * 910 * Fetch data info the specified (empty) ACPI buffer. 911 * Caller must free buf.Pointer by AcpiOsFree(). 912 */ 913 ACPI_STATUS 914 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 915 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 916 { 917 buf->Pointer = NULL; 918 buf->Length = ACPI_ALLOCATE_BUFFER; 919 920 return (*getit)(handle, buf); 921 } 922 923 924 /* 925 * acpi_match_hid 926 * 927 * Match given ids against _HID and _CIDs 928 */ 929 int 930 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 931 { 932 int i; 933 934 while (*ids) { 935 if (ad->Valid & ACPI_VALID_HID) { 936 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 937 return 1; 938 } 939 940 if (ad->Valid & ACPI_VALID_CID) { 941 for (i = 0; i < ad->CompatibilityId.Count; i++) { 942 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 943 return 1; 944 } 945 } 946 ids++; 947 } 948 949 return 0; 950 } 951 952 953 /***************************************************************************** 954 * ACPI sleep support. 955 *****************************************************************************/ 956 957 static int 958 is_available_state(struct acpi_softc *sc, int state) 959 { 960 UINT8 type_a, type_b; 961 962 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 963 &type_a, &type_b)); 964 } 965 966 /* 967 * acpi_enter_sleep_state: 968 * 969 * enter to the specified sleep state. 970 */ 971 972 ACPI_STATUS 973 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 974 { 975 int s; 976 ACPI_STATUS ret = AE_OK; 977 978 switch (state) { 979 case ACPI_STATE_S0: 980 break; 981 case ACPI_STATE_S1: 982 case ACPI_STATE_S2: 983 case ACPI_STATE_S3: 984 case ACPI_STATE_S4: 985 if (!is_available_state(sc, state)) { 986 printf("acpi: cannot enter the sleep state (%d).\n", 987 state); 988 break; 989 } 990 ret = AcpiEnterSleepStatePrep(state); 991 if (ACPI_FAILURE(ret)) { 992 printf("acpi: failed preparing to sleep (%s)\n", 993 AcpiFormatException(ret)); 994 break; 995 } 996 if (state==ACPI_STATE_S1) { 997 /* just enter the state */ 998 acpi_md_OsDisableInterrupt(); 999 AcpiEnterSleepState((UINT8)state); 1000 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 1001 } else { 1002 /* XXX: powerhooks(9) framework is too poor to 1003 * support ACPI sleep state... 1004 */ 1005 dopowerhooks(PWR_SOFTSUSPEND); 1006 s = splhigh(); 1007 dopowerhooks(PWR_SUSPEND); 1008 acpi_md_sleep(state); 1009 dopowerhooks(PWR_RESUME); 1010 splx(s); 1011 dopowerhooks(PWR_SOFTRESUME); 1012 if (state==ACPI_STATE_S4) 1013 AcpiEnable(); 1014 } 1015 AcpiLeaveSleepState((UINT8)state); 1016 break; 1017 case ACPI_STATE_S5: 1018 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1019 if (ACPI_FAILURE(ret)) { 1020 printf("acpi: failed preparing to sleep (%s)\n", 1021 AcpiFormatException(ret)); 1022 break; 1023 } 1024 acpi_md_OsDisableInterrupt(); 1025 AcpiEnterSleepState(ACPI_STATE_S5); 1026 printf("WARNING: powerdown failed!\n"); 1027 break; 1028 } 1029 1030 return ret; 1031 } 1032 1033 #ifdef ACPI_PCI_FIXUP 1034 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 1035 /* 1036 * acpi_pci_fixup: 1037 * 1038 * Set up PCI devices that BIOS didn't handle right. 1039 * Iterate through all devices and try to get the _PTR 1040 * (PCI Routing Table). If it exists then make sure all 1041 * interrupt links that it uses are working. 1042 */ 1043 void 1044 acpi_pci_fixup(struct acpi_softc *sc) 1045 { 1046 ACPI_HANDLE parent; 1047 ACPI_STATUS rv; 1048 1049 #ifdef ACPI_DEBUG 1050 printf("acpi_pci_fixup starts:\n"); 1051 #endif 1052 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent); 1053 if (ACPI_FAILURE(rv)) 1054 return; 1055 sc->sc_pci_bus = 0; 1056 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1057 acpi_pci_fixup_bus, sc, NULL); 1058 } 1059 1060 static uint 1061 acpi_get_intr(ACPI_HANDLE handle) 1062 { 1063 ACPI_BUFFER ret; 1064 ACPI_STATUS rv; 1065 ACPI_RESOURCE *res; 1066 ACPI_RESOURCE_IRQ *irq; 1067 uint intr; 1068 1069 intr = -1; 1070 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1071 if (ACPI_FAILURE(rv)) 1072 return intr; 1073 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1074 res = ACPI_NEXT_RESOURCE(res)) { 1075 if (res->Id == ACPI_RSTYPE_IRQ) { 1076 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1077 if (irq->NumberOfInterrupts == 1) 1078 intr = irq->Interrupts[0]; 1079 break; 1080 } 1081 } 1082 AcpiOsFree(ret.Pointer); 1083 return intr; 1084 } 1085 1086 static void 1087 acpi_pci_set_line(int bus, int dev, int pin, int line) 1088 { 1089 ACPI_STATUS err; 1090 ACPI_PCI_ID pid; 1091 UINT32 intr, id, bhlc; 1092 int func, nfunc; 1093 1094 pid.Bus = bus; 1095 pid.Device = dev; 1096 pid.Function = 0; 1097 1098 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1099 if (err) 1100 return; 1101 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1102 nfunc = 8; 1103 else 1104 nfunc = 1; 1105 1106 for (func = 0; func < nfunc; func++) { 1107 pid.Function = func; 1108 1109 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1110 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1111 PCI_VENDOR(id) == 0) 1112 continue; 1113 1114 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1115 &intr, 32); 1116 if (err) { 1117 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1118 return; 1119 } 1120 if (pin == PCI_INTERRUPT_PIN(intr) && 1121 line != PCI_INTERRUPT_LINE(intr)) { 1122 #ifdef ACPI_DEBUG 1123 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1124 bus, dev, func, 1125 pin + '@', PCI_INTERRUPT_LINE(intr), 1126 line); 1127 #endif 1128 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1129 PCI_INTERRUPT_LINE_SHIFT); 1130 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1131 err = AcpiOsWritePciConfiguration(&pid, 1132 PCI_INTERRUPT_REG, intr, 32); 1133 if (err) { 1134 printf("AcpiOsWritePciConfiguration failed" 1135 " %d\n", err); 1136 return; 1137 } 1138 } 1139 } 1140 } 1141 1142 ACPI_STATUS 1143 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1144 void **status) 1145 { 1146 struct acpi_softc *sc = context; 1147 ACPI_STATUS rv; 1148 ACPI_BUFFER buf; 1149 UINT8 *Buffer; 1150 ACPI_PCI_ROUTING_TABLE *PrtElement; 1151 ACPI_HANDLE link; 1152 uint line; 1153 ACPI_INTEGER val; 1154 1155 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1156 if (ACPI_FAILURE(rv)) 1157 return AE_OK; 1158 1159 /* 1160 * If at level 1, this is a PCI root bus. Try the _BBN method 1161 * to get the right PCI bus numbering for the following 1162 * busses (this is a depth-first walk). It may fail, 1163 * for example if there's only one root bus, but that 1164 * case should be ok, so we'll ignore that. 1165 */ 1166 if (level == 1) { 1167 rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val); 1168 if (!ACPI_FAILURE(rv)) { 1169 #ifdef ACPI_DEBUG 1170 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1171 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1172 ACPI_LOWORD(val)); 1173 #endif 1174 sc->sc_pci_bus = ACPI_LOWORD(val); 1175 } 1176 } 1177 1178 1179 #ifdef ACPI_DEBUG 1180 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1181 sc->sc_pci_bus, level); 1182 #endif 1183 1184 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1185 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1186 if (PrtElement->Length == 0) 1187 break; 1188 if (PrtElement->Source[0] == 0) 1189 continue; 1190 1191 rv = AcpiGetHandle(NULL, PrtElement->Source, &link); 1192 if (ACPI_FAILURE(rv)) 1193 continue; 1194 line = acpi_get_intr(link); 1195 if (line == -1) { 1196 #ifdef ACPI_DEBUG 1197 printf("%s: fixing up intr link %s\n", 1198 sc->sc_dev.dv_xname, PrtElement->Source); 1199 #endif 1200 rv = acpi_allocate_resources(link); 1201 if (ACPI_FAILURE(rv)) { 1202 printf("%s: interrupt allocation failed %s\n", 1203 sc->sc_dev.dv_xname, PrtElement->Source); 1204 continue; 1205 } 1206 line = acpi_get_intr(link); 1207 if (line == -1) { 1208 printf("%s: get intr failed %s\n", 1209 sc->sc_dev.dv_xname, PrtElement->Source); 1210 continue; 1211 } 1212 } 1213 1214 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1215 PrtElement->Pin + 1, line); 1216 } 1217 1218 sc->sc_pci_bus++; 1219 1220 AcpiOsFree(buf.Pointer); 1221 return AE_OK; 1222 } 1223 #endif /* ACPI_PCI_FIXUP */ 1224 1225 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1226 /* XXX This very incomplete */ 1227 static ACPI_STATUS 1228 acpi_allocate_resources(ACPI_HANDLE handle) 1229 { 1230 ACPI_BUFFER bufp, bufc, bufn; 1231 ACPI_RESOURCE *resp, *resc, *resn; 1232 ACPI_RESOURCE_IRQ *irq; 1233 ACPI_STATUS rv; 1234 uint delta; 1235 1236 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1237 if (ACPI_FAILURE(rv)) 1238 goto out; 1239 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1240 if (ACPI_FAILURE(rv)) { 1241 goto out1; 1242 } 1243 1244 bufn.Length = 1000; 1245 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1246 resp = bufp.Pointer; 1247 resc = bufc.Pointer; 1248 while (resc->Id != ACPI_RSTYPE_END_TAG && 1249 resp->Id != ACPI_RSTYPE_END_TAG) { 1250 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1251 resp = ACPI_NEXT_RESOURCE(resp); 1252 if (resp->Id == ACPI_RSTYPE_END_TAG) 1253 break; 1254 /* Found identical Id */ 1255 resn->Id = resc->Id; 1256 switch (resc->Id) { 1257 case ACPI_RSTYPE_IRQ: 1258 memcpy(&resn->Data, &resp->Data, 1259 sizeof(ACPI_RESOURCE_IRQ)); 1260 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1261 irq->Interrupts[0] = 1262 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1263 Interrupts[irq->NumberOfInterrupts-1]; 1264 irq->NumberOfInterrupts = 1; 1265 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1266 break; 1267 case ACPI_RSTYPE_IO: 1268 memcpy(&resn->Data, &resp->Data, 1269 sizeof(ACPI_RESOURCE_IO)); 1270 resn->Length = resp->Length; 1271 break; 1272 default: 1273 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1274 rv = AE_BAD_DATA; 1275 goto out2; 1276 } 1277 resc = ACPI_NEXT_RESOURCE(resc); 1278 resn = ACPI_NEXT_RESOURCE(resn); 1279 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1280 if (delta >= 1281 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1282 bufn.Length *= 2; 1283 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1284 M_ACPI, M_WAITOK); 1285 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1286 } 1287 } 1288 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1289 printf("acpi_allocate_resources: resc not exhausted\n"); 1290 rv = AE_BAD_DATA; 1291 goto out3; 1292 } 1293 1294 resn->Id = ACPI_RSTYPE_END_TAG; 1295 rv = AcpiSetCurrentResources(handle, &bufn); 1296 if (ACPI_FAILURE(rv)) { 1297 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1298 AcpiFormatException(rv)); 1299 } 1300 1301 out3: 1302 free(bufn.Pointer, M_ACPI); 1303 out2: 1304 AcpiOsFree(bufc.Pointer); 1305 out1: 1306 AcpiOsFree(bufp.Pointer); 1307 out: 1308 return rv; 1309 } 1310 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */ 1311
Indexes created Wed Oct 01 19:09:53 GMT 2025