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sys/dev/acpi/acpi.c
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1 /* $NetBSD: acpi.c,v 1.59.2.3 2004/06/14 03:18:58 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 1.59.2.3 2004/06/14 03:18:58 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 #if NACPIEC > 0 298 acpiec_early_attach(&sc->sc_dev); 299 #endif 300 301 rv = AcpiInitializeObjects(0); 302 if (ACPI_FAILURE(rv)) { 303 printf("%s: unable to initialize ACPI objects: %s\n", 304 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 305 return; 306 } 307 acpi_active = 1; 308 309 /* Our current state is "awake". */ 310 sc->sc_sleepstate = ACPI_STATE_S0; 311 312 /* Show SCI interrupt. */ 313 if (AcpiGbl_FADT != NULL) 314 printf("%s: SCI interrupting at int %d\n", 315 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 316 /* 317 * Check for fixed-hardware features. 318 */ 319 acpi_enable_fixed_events(sc); 320 321 /* 322 * Fix up PCI devices. 323 */ 324 #ifdef ACPI_PCI_FIXUP 325 if ((sc->sc_quirks & (ACPI_QUIRK_BADPCI | ACPI_QUIRK_BADIRQ)) == 0) 326 acpi_pci_fixup(sc); 327 #endif 328 329 /* 330 * Scan the namespace and build our device tree. 331 */ 332 #ifdef ACPI_DEBUGGER 333 if (acpi_dbgr & ACPI_DBGR_PROBE) 334 acpi_osd_debugger(); 335 #endif 336 acpi_md_callback((struct device *)sc); 337 acpi_build_tree(sc); 338 339 /* 340 * Register a shutdown hook that disables certain ACPI 341 * events that might happen and confuse us while we're 342 * trying to shut down. 343 */ 344 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 345 if (sc->sc_sdhook == NULL) 346 printf("%s: WARNING: unable to register shutdown hook\n", 347 sc->sc_dev.dv_xname); 348 349 #ifdef ACPI_DEBUGGER 350 if (acpi_dbgr & ACPI_DBGR_RUNNING) 351 acpi_osd_debugger(); 352 #endif 353 } 354 355 /* 356 * acpi_shutdown: 357 * 358 * Shutdown hook for ACPI -- disable some events that 359 * might confuse us. 360 */ 361 void 362 acpi_shutdown(void *arg) 363 { 364 struct acpi_softc *sc = arg; 365 ACPI_STATUS rv; 366 367 rv = acpi_disable(sc); 368 if (ACPI_FAILURE(rv)) 369 printf("%s: WARNING: unable to disable ACPI: %s\n", 370 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 371 } 372 373 /* 374 * acpi_disable: 375 * 376 * Disable ACPI. 377 */ 378 ACPI_STATUS 379 acpi_disable(struct acpi_softc *sc) 380 { 381 ACPI_STATUS rv = AE_OK; 382 383 #ifdef ACPI_DISABLE_ON_POWEROFF 384 if (acpi_active) { 385 rv = AcpiDisable(); 386 if (ACPI_SUCCESS(rv)) 387 acpi_active = 0; 388 } 389 #endif 390 return (rv); 391 } 392 393 struct acpi_make_devnode_state { 394 struct acpi_softc *softc; 395 struct acpi_scope *scope; 396 }; 397 398 /* 399 * acpi_build_tree: 400 * 401 * Scan relevant portions of the ACPI namespace and attach 402 * child devices. 403 */ 404 void 405 acpi_build_tree(struct acpi_softc *sc) 406 { 407 static const char *scopes[] = { 408 "\\_PR_", /* ACPI 1.0 processor namespace */ 409 "\\_SB_", /* system bus namespace */ 410 "\\_SI_", /* system idicator namespace */ 411 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 412 NULL, 413 }; 414 struct acpi_attach_args aa; 415 struct acpi_make_devnode_state state; 416 struct acpi_scope *as; 417 struct acpi_devnode *ad; 418 ACPI_HANDLE parent; 419 ACPI_STATUS rv; 420 int i; 421 422 TAILQ_INIT(&sc->sc_scopes); 423 424 state.softc = sc; 425 426 /* 427 * Scan the namespace and build our tree. 428 */ 429 for (i = 0; scopes[i] != NULL; i++) { 430 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 431 as->as_name = scopes[i]; 432 TAILQ_INIT(&as->as_devnodes); 433 434 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 435 436 state.scope = as; 437 438 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, (char *) scopes[i], 439 &parent); 440 if (ACPI_SUCCESS(rv)) { 441 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 442 acpi_make_devnode, &state, NULL); 443 } 444 445 /* Now, for this namespace, try and attach the devices. */ 446 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 447 aa.aa_node = ad; 448 aa.aa_iot = sc->sc_iot; 449 aa.aa_memt = sc->sc_memt; 450 aa.aa_pc = sc->sc_pc; 451 aa.aa_pciflags = sc->sc_pciflags; 452 aa.aa_ic = sc->sc_ic; 453 454 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 455 /* 456 * XXX We only attach devices which are: 457 * 458 * - present 459 * - enabled 460 * - functioning properly 461 * 462 * However, if enabled, it's decoding resources, 463 * so we should claim them, if possible. 464 * Requires changes to bus_space(9). 465 */ 466 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 467 ACPI_VALID_STA && 468 (ad->ad_devinfo->CurrentStatus & 469 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 470 ACPI_STA_DEV_OK)) != 471 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 472 ACPI_STA_DEV_OK)) 473 continue; 474 475 /* 476 * XXX Same problem as above... 477 */ 478 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 479 == 0) 480 continue; 481 } 482 483 ad->ad_device = config_found(&sc->sc_dev, 484 &aa, acpi_print); 485 } 486 } 487 } 488 489 #ifdef ACPI_ACTIVATE_DEV 490 static void 491 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 492 { 493 ACPI_STATUS rv; 494 ACPI_BUFFER buf; 495 496 buf.Pointer = NULL; 497 buf.Length = ACPI_ALLOCATE_BUFFER; 498 499 #ifdef ACPI_DEBUG 500 printf("acpi_activate_device: %s, old status=%x\n", 501 (*di)->HardwareId.Value, (*di)->CurrentStatus); 502 #endif 503 504 rv = acpi_allocate_resources(handle); 505 if (ACPI_FAILURE(rv)) { 506 printf("acpi: activate failed for %s\n", 507 (*di)->HardwareId.Value); 508 } else { 509 printf("acpi: activated %s\n", (*di)->HardwareId.Value); 510 } 511 512 (void)AcpiGetObjectInfo(handle, &buf); 513 AcpiOsFree(*di); 514 *di = buf.Pointer; 515 516 #ifdef ACPI_DEBUG 517 printf("acpi_activate_device: %s, new status=%x\n", 518 (*di)->HardwareId.Value, (*di)->CurrentStatus); 519 #endif 520 } 521 #endif /* ACPI_ACTIVATE_DEV */ 522 523 /* 524 * acpi_make_devnode: 525 * 526 * Make an ACPI devnode. 527 */ 528 ACPI_STATUS 529 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 530 void **status) 531 { 532 struct acpi_make_devnode_state *state = context; 533 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 534 struct acpi_softc *sc = state->softc; 535 #endif 536 struct acpi_scope *as = state->scope; 537 struct acpi_devnode *ad; 538 ACPI_OBJECT_TYPE type; 539 ACPI_BUFFER buf; 540 ACPI_DEVICE_INFO *devinfo; 541 ACPI_STATUS rv; 542 543 rv = AcpiGetType(handle, &type); 544 if (ACPI_SUCCESS(rv)) { 545 buf.Pointer = NULL; 546 buf.Length = ACPI_ALLOCATE_BUFFER; 547 rv = AcpiGetObjectInfo(handle, &buf); 548 if (ACPI_FAILURE(rv)) { 549 #ifdef ACPI_DEBUG 550 printf("%s: AcpiGetObjectInfo failed: %s\n", 551 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 552 #endif 553 goto out; /* XXX why return OK */ 554 } 555 556 devinfo = buf.Pointer; 557 558 switch (type) { 559 case ACPI_TYPE_DEVICE: 560 #ifdef ACPI_ACTIVATE_DEV 561 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 562 (ACPI_VALID_STA|ACPI_VALID_HID) && 563 (devinfo->CurrentStatus & 564 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 565 ACPI_STA_DEV_PRESENT) 566 acpi_activate_device(handle, &devinfo); 567 568 /* FALLTHROUGH */ 569 #endif 570 571 case ACPI_TYPE_PROCESSOR: 572 case ACPI_TYPE_THERMAL: 573 case ACPI_TYPE_POWER: 574 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 575 if (ad == NULL) 576 return (AE_NO_MEMORY); 577 578 ad->ad_devinfo = devinfo; 579 ad->ad_handle = handle; 580 ad->ad_level = level; 581 ad->ad_scope = as; 582 ad->ad_type = type; 583 584 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 585 586 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 587 goto out; 588 589 #ifdef ACPI_EXTRA_DEBUG 590 printf("%s: HID %s found in scope %s level %d\n", 591 sc->sc_dev.dv_xname, 592 ad->ad_devinfo->HardwareId.Value, 593 as->as_name, ad->ad_level); 594 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 595 printf(" UID %s\n", 596 ad->ad_devinfo->UniqueId.Value); 597 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 598 printf(" ADR 0x%016qx\n", 599 ad->ad_devinfo->Address); 600 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 601 printf(" STA 0x%08x\n", 602 ad->ad_devinfo->CurrentStatus); 603 #endif 604 } 605 } 606 out: 607 return (AE_OK); 608 } 609 610 /* 611 * acpi_print: 612 * 613 * Autoconfiguration print routine. 614 */ 615 int 616 acpi_print(void *aux, const char *pnp) 617 { 618 struct acpi_attach_args *aa = aux; 619 ACPI_STATUS rv; 620 621 if (pnp) { 622 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 623 char *pnpstr = 624 aa->aa_node->ad_devinfo->HardwareId.Value; 625 char *str; 626 627 aprint_normal("%s ", pnpstr); 628 rv = acpi_eval_string(aa->aa_node->ad_handle, 629 "_STR", &str); 630 if (ACPI_SUCCESS(rv)) { 631 aprint_normal("[%s] ", str); 632 AcpiOsFree(str); 633 } 634 #ifdef ACPIVERBOSE 635 else { 636 int i; 637 638 for (i = 0; i < sizeof(acpi_knowndevs) / 639 sizeof(acpi_knowndevs[0]); i++) { 640 if (strcmp(acpi_knowndevs[i].pnp, 641 pnpstr) == 0) { 642 printf("[%s] ", 643 acpi_knowndevs[i].str); 644 } 645 } 646 } 647 648 #endif 649 } else { 650 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 651 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 652 aa->aa_node->ad_devinfo->Type); 653 } 654 aprint_normal("at %s", pnp); 655 } else { 656 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 657 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 658 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 659 char *uid; 660 661 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 662 if (uid[0] == '\0') 663 uid = "<null>"; 664 aprint_normal("-%s", uid); 665 } 666 aprint_normal(")"); 667 } 668 } 669 670 return (UNCONF); 671 } 672 673 /***************************************************************************** 674 * ACPI fixed-hardware feature handlers 675 *****************************************************************************/ 676 677 UINT32 acpi_fixed_button_handler(void *); 678 void acpi_fixed_button_pressed(void *); 679 680 /* 681 * acpi_enable_fixed_events: 682 * 683 * Enable any fixed-hardware feature handlers. 684 */ 685 void 686 acpi_enable_fixed_events(struct acpi_softc *sc) 687 { 688 static int beenhere; 689 ACPI_STATUS rv; 690 691 KASSERT(beenhere == 0); 692 beenhere = 1; 693 694 /* 695 * Check for fixed-hardware buttons. 696 */ 697 698 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 699 printf("%s: fixed-feature power button present\n", 700 sc->sc_dev.dv_xname); 701 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 702 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 703 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 704 printf("%s: unable to register fixed power button " 705 "with sysmon\n", sc->sc_dev.dv_xname); 706 } else { 707 rv = AcpiInstallFixedEventHandler( 708 ACPI_EVENT_POWER_BUTTON, 709 acpi_fixed_button_handler, &sc->sc_smpsw_power); 710 if (ACPI_FAILURE(rv)) { 711 printf("%s: unable to install handler for " 712 "fixed power button: %s\n", 713 sc->sc_dev.dv_xname, 714 AcpiFormatException(rv)); 715 } 716 } 717 } 718 719 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 720 printf("%s: fixed-feature sleep button present\n", 721 sc->sc_dev.dv_xname); 722 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 723 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 724 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 725 printf("%s: unable to register fixed sleep button " 726 "with sysmon\n", sc->sc_dev.dv_xname); 727 } else { 728 rv = AcpiInstallFixedEventHandler( 729 ACPI_EVENT_SLEEP_BUTTON, 730 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 731 if (ACPI_FAILURE(rv)) { 732 printf("%s: unable to install handler for " 733 "fixed sleep button: %s\n", 734 sc->sc_dev.dv_xname, 735 AcpiFormatException(rv)); 736 } 737 } 738 } 739 } 740 741 /* 742 * acpi_fixed_button_handler: 743 * 744 * Event handler for the fixed buttons. 745 */ 746 UINT32 747 acpi_fixed_button_handler(void *context) 748 { 749 struct sysmon_pswitch *smpsw = context; 750 int rv; 751 752 #ifdef ACPI_BUT_DEBUG 753 printf("%s: fixed button handler\n", smpsw->smpsw_name); 754 #endif 755 756 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 757 acpi_fixed_button_pressed, smpsw); 758 if (ACPI_FAILURE(rv)) 759 printf("%s: WARNING: unable to queue fixed button pressed " 760 "callback: %s\n", smpsw->smpsw_name, 761 AcpiFormatException(rv)); 762 763 return (ACPI_INTERRUPT_HANDLED); 764 } 765 766 /* 767 * acpi_fixed_button_pressed: 768 * 769 * Deal with a fixed button being pressed. 770 */ 771 void 772 acpi_fixed_button_pressed(void *context) 773 { 774 struct sysmon_pswitch *smpsw = context; 775 776 #ifdef ACPI_BUT_DEBUG 777 printf("%s: fixed button pressed, calling sysmon\n", 778 smpsw->smpsw_name); 779 #endif 780 781 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 782 } 783 784 /***************************************************************************** 785 * ACPI utility routines. 786 *****************************************************************************/ 787 788 /* 789 * acpi_eval_integer: 790 * 791 * Evaluate an integer object. 792 */ 793 ACPI_STATUS 794 acpi_eval_integer(ACPI_HANDLE handle, char *path, ACPI_INTEGER *valp) 795 { 796 ACPI_STATUS rv; 797 ACPI_BUFFER buf; 798 ACPI_OBJECT param; 799 800 if (handle == NULL) 801 handle = ACPI_ROOT_OBJECT; 802 803 buf.Pointer = ¶m; 804 buf.Length = sizeof(param); 805 806 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 807 if (ACPI_SUCCESS(rv)) 808 *valp = param.Integer.Value; 809 810 return (rv); 811 } 812 813 /* 814 * acpi_eval_string: 815 * 816 * Evaluate a (Unicode) string object. 817 */ 818 ACPI_STATUS 819 acpi_eval_string(ACPI_HANDLE handle, char *path, char **stringp) 820 { 821 ACPI_STATUS rv; 822 ACPI_BUFFER buf; 823 824 if (handle == NULL) 825 handle = ACPI_ROOT_OBJECT; 826 827 buf.Pointer = NULL; 828 buf.Length = ACPI_ALLOCATE_BUFFER; 829 830 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 831 if (ACPI_SUCCESS(rv)) { 832 ACPI_OBJECT *param = buf.Pointer; 833 char *ptr = param->String.Pointer; 834 size_t len = param->String.Length; 835 if ((*stringp = AcpiOsAllocate(len)) == NULL) 836 rv = AE_NO_MEMORY; 837 else 838 (void)memcpy(*stringp, ptr, len); 839 AcpiOsFree(param); 840 } 841 842 return (rv); 843 } 844 845 846 /* 847 * acpi_eval_struct: 848 * 849 * Evaluate a more complex structure. 850 * Caller must free buf.Pointer by AcpiOsFree(). 851 */ 852 ACPI_STATUS 853 acpi_eval_struct(ACPI_HANDLE handle, char *path, ACPI_BUFFER *bufp) 854 { 855 ACPI_STATUS rv; 856 857 if (handle == NULL) 858 handle = ACPI_ROOT_OBJECT; 859 860 bufp->Pointer = NULL; 861 bufp->Length = ACPI_ALLOCATE_BUFFER; 862 863 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 864 865 return (rv); 866 } 867 868 /* 869 * acpi_get: 870 * 871 * Fetch data info the specified (empty) ACPI buffer. 872 * Caller must free buf.Pointer by AcpiOsFree(). 873 */ 874 ACPI_STATUS 875 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 876 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 877 { 878 buf->Pointer = NULL; 879 buf->Length = ACPI_ALLOCATE_BUFFER; 880 881 return ((*getit)(handle, buf)); 882 } 883 884 885 /* 886 * acpi_match_hid 887 * 888 * Match given ids against _HID and _CIDs 889 */ 890 int 891 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 892 { 893 int i; 894 895 while (*ids) { 896 if (ad->Valid & ACPI_VALID_HID) { 897 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 898 return (1); 899 } 900 901 if (ad->Valid & ACPI_VALID_CID) { 902 for (i = 0; i < ad->CompatibilityId.Count; i++) { 903 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 904 return (1); 905 } 906 } 907 ids++; 908 } 909 910 return (0); 911 } 912 913 914 /***************************************************************************** 915 * ACPI sleep support. 916 *****************************************************************************/ 917 918 static int 919 is_available_state(struct acpi_softc *sc, int state) 920 { 921 UINT8 type_a, type_b; 922 923 return (ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 924 &type_a, &type_b))); 925 } 926 927 /* 928 * acpi_enter_sleep_state: 929 * 930 * enter to the specified sleep state. 931 */ 932 933 ACPI_STATUS 934 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 935 { 936 int s; 937 ACPI_STATUS ret = AE_OK; 938 939 switch (state) { 940 case ACPI_STATE_S0: 941 break; 942 case ACPI_STATE_S1: 943 case ACPI_STATE_S2: 944 case ACPI_STATE_S3: 945 case ACPI_STATE_S4: 946 if (!is_available_state(sc, state)) { 947 printf("acpi: cannot enter the sleep state (%d).\n", 948 state); 949 break; 950 } 951 ret = AcpiEnterSleepStatePrep(state); 952 if (ACPI_FAILURE(ret)) { 953 printf("acpi: failed preparing to sleep (%s)\n", 954 AcpiFormatException(ret)); 955 break; 956 } 957 if (state==ACPI_STATE_S1) { 958 /* just enter the state */ 959 acpi_md_OsDisableInterrupt(); 960 AcpiEnterSleepState((UINT8)state); 961 AcpiUtReleaseMutex(ACPI_MTX_HARDWARE); 962 } else { 963 /* XXX: powerhooks(9) framework is too poor to 964 * support ACPI sleep state... 965 */ 966 dopowerhooks(PWR_SOFTSUSPEND); 967 s = splhigh(); 968 dopowerhooks(PWR_SUSPEND); 969 acpi_md_sleep(state); 970 dopowerhooks(PWR_RESUME); 971 splx(s); 972 dopowerhooks(PWR_SOFTRESUME); 973 if (state==ACPI_STATE_S4) 974 AcpiEnable(); 975 } 976 AcpiLeaveSleepState((UINT8)state); 977 break; 978 case ACPI_STATE_S5: 979 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 980 if (ACPI_FAILURE(ret)) { 981 printf("acpi: failed preparing to sleep (%s)\n", 982 AcpiFormatException(ret)); 983 break; 984 } 985 acpi_md_OsDisableInterrupt(); 986 AcpiEnterSleepState(ACPI_STATE_S5); 987 printf("WARNING: powerdown failed!\n"); 988 break; 989 } 990 991 return (ret); 992 } 993 994 #ifdef ACPI_PCI_FIXUP 995 ACPI_STATUS acpi_pci_fixup_bus(ACPI_HANDLE, UINT32, void *, void **); 996 /* 997 * acpi_pci_fixup: 998 * 999 * Set up PCI devices that BIOS didn't handle right. 1000 * Iterate through all devices and try to get the _PTR 1001 * (PCI Routing Table). If it exists then make sure all 1002 * interrupt links that it uses are working. 1003 */ 1004 void 1005 acpi_pci_fixup(struct acpi_softc *sc) 1006 { 1007 ACPI_HANDLE parent; 1008 ACPI_STATUS rv; 1009 1010 #ifdef ACPI_DEBUG 1011 printf("acpi_pci_fixup starts:\n"); 1012 #endif 1013 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, "\\_SB_", &parent); 1014 if (ACPI_FAILURE(rv)) 1015 return; 1016 sc->sc_pci_bus = 0; 1017 AcpiWalkNamespace(ACPI_TYPE_DEVICE, parent, 100, 1018 acpi_pci_fixup_bus, sc, NULL); 1019 } 1020 1021 static uint 1022 acpi_get_intr(ACPI_HANDLE handle) 1023 { 1024 ACPI_BUFFER ret; 1025 ACPI_STATUS rv; 1026 ACPI_RESOURCE *res; 1027 ACPI_RESOURCE_IRQ *irq; 1028 uint intr; 1029 1030 intr = -1; 1031 rv = acpi_get(handle, &ret, AcpiGetCurrentResources); 1032 if (ACPI_FAILURE(rv)) 1033 return (intr); 1034 for (res = ret.Pointer; res->Id != ACPI_RSTYPE_END_TAG; 1035 res = ACPI_NEXT_RESOURCE(res)) { 1036 if (res->Id == ACPI_RSTYPE_IRQ) { 1037 irq = (ACPI_RESOURCE_IRQ *)&res->Data; 1038 if (irq->NumberOfInterrupts == 1) 1039 intr = irq->Interrupts[0]; 1040 break; 1041 } 1042 } 1043 AcpiOsFree(ret.Pointer); 1044 return (intr); 1045 } 1046 1047 static void 1048 acpi_pci_set_line(int bus, int dev, int pin, int line) 1049 { 1050 ACPI_STATUS err; 1051 ACPI_PCI_ID pid; 1052 UINT32 intr, id, bhlc; 1053 int func, nfunc; 1054 1055 pid.Bus = bus; 1056 pid.Device = dev; 1057 pid.Function = 0; 1058 1059 err = AcpiOsReadPciConfiguration(&pid, PCI_BHLC_REG, &bhlc, 32); 1060 if (err) 1061 return; 1062 if (PCI_HDRTYPE_MULTIFN(bhlc)) 1063 nfunc = 8; 1064 else 1065 nfunc = 1; 1066 1067 for (func = 0; func < nfunc; func++) { 1068 pid.Function = func; 1069 1070 err = AcpiOsReadPciConfiguration(&pid, PCI_ID_REG, &id, 32); 1071 if (err || PCI_VENDOR(id) == PCI_VENDOR_INVALID || 1072 PCI_VENDOR(id) == 0) 1073 continue; 1074 1075 err = AcpiOsReadPciConfiguration(&pid, PCI_INTERRUPT_REG, 1076 &intr, 32); 1077 if (err) { 1078 printf("AcpiOsReadPciConfiguration failed %d\n", err); 1079 return; 1080 } 1081 if (pin == PCI_INTERRUPT_PIN(intr) && 1082 line != PCI_INTERRUPT_LINE(intr)) { 1083 #ifdef ACPI_DEBUG 1084 printf("acpi fixup pci intr: %d:%d:%d %c: %d -> %d\n", 1085 bus, dev, func, 1086 pin + '@', PCI_INTERRUPT_LINE(intr), 1087 line); 1088 #endif 1089 intr &= ~(PCI_INTERRUPT_LINE_MASK << 1090 PCI_INTERRUPT_LINE_SHIFT); 1091 intr |= line << PCI_INTERRUPT_LINE_SHIFT; 1092 err = AcpiOsWritePciConfiguration(&pid, 1093 PCI_INTERRUPT_REG, intr, 32); 1094 if (err) { 1095 printf("AcpiOsWritePciConfiguration failed" 1096 " %d\n", err); 1097 return; 1098 } 1099 } 1100 } 1101 } 1102 1103 ACPI_STATUS 1104 acpi_pci_fixup_bus(ACPI_HANDLE handle, UINT32 level, void *context, 1105 void **status) 1106 { 1107 struct acpi_softc *sc = context; 1108 ACPI_STATUS rv; 1109 ACPI_BUFFER buf; 1110 UINT8 *Buffer; 1111 ACPI_PCI_ROUTING_TABLE *PrtElement; 1112 ACPI_HANDLE link; 1113 uint line; 1114 ACPI_INTEGER val; 1115 1116 rv = acpi_get(handle, &buf, AcpiGetIrqRoutingTable); 1117 if (ACPI_FAILURE(rv)) 1118 return (AE_OK); 1119 1120 /* 1121 * If at level 1, this is a PCI root bus. Try the _BBN method 1122 * to get the right PCI bus numbering for the following 1123 * busses (this is a depth-first walk). It may fail, 1124 * for example if there's only one root bus, but that 1125 * case should be ok, so we'll ignore that. 1126 */ 1127 if (level == 1) { 1128 rv = acpi_eval_integer(handle, METHOD_NAME__BBN, &val); 1129 if (!ACPI_FAILURE(rv)) { 1130 #ifdef ACPI_DEBUG 1131 printf("%s: fixup: _BBN success, bus # was %d now %d\n", 1132 sc->sc_dev.dv_xname, sc->sc_pci_bus, 1133 ACPI_LOWORD(val)); 1134 #endif 1135 sc->sc_pci_bus = ACPI_LOWORD(val); 1136 } 1137 } 1138 1139 1140 #ifdef ACPI_DEBUG 1141 printf("%s: fixing up PCI bus %d at level %u\n", sc->sc_dev.dv_xname, 1142 sc->sc_pci_bus, level); 1143 #endif 1144 1145 for (Buffer = buf.Pointer; ; Buffer += PrtElement->Length) { 1146 PrtElement = (ACPI_PCI_ROUTING_TABLE *)Buffer; 1147 if (PrtElement->Length == 0) 1148 break; 1149 if (PrtElement->Source[0] == 0) 1150 continue; 1151 1152 rv = AcpiGetHandle(NULL, PrtElement->Source, &link); 1153 if (ACPI_FAILURE(rv)) 1154 continue; 1155 line = acpi_get_intr(link); 1156 if (line == -1) { 1157 #ifdef ACPI_DEBUG 1158 printf("%s: fixing up intr link %s\n", 1159 sc->sc_dev.dv_xname, PrtElement->Source); 1160 #endif 1161 rv = acpi_allocate_resources(link); 1162 if (ACPI_FAILURE(rv)) { 1163 printf("%s: interrupt allocation failed %s\n", 1164 sc->sc_dev.dv_xname, PrtElement->Source); 1165 continue; 1166 } 1167 line = acpi_get_intr(link); 1168 if (line == -1) { 1169 printf("%s: get intr failed %s\n", 1170 sc->sc_dev.dv_xname, PrtElement->Source); 1171 continue; 1172 } 1173 } 1174 1175 acpi_pci_set_line(sc->sc_pci_bus, PrtElement->Address >> 16, 1176 PrtElement->Pin + 1, line); 1177 } 1178 1179 sc->sc_pci_bus++; 1180 1181 AcpiOsFree(buf.Pointer); 1182 return (AE_OK); 1183 } 1184 #endif /* ACPI_PCI_FIXUP */ 1185 1186 #if defined(ACPI_PCI_FIXUP) || defined(ACPI_ACTIVATE_DEV) 1187 /* XXX This very incomplete */ 1188 ACPI_STATUS 1189 acpi_allocate_resources(ACPI_HANDLE handle) 1190 { 1191 ACPI_BUFFER bufp, bufc, bufn; 1192 ACPI_RESOURCE *resp, *resc, *resn; 1193 ACPI_RESOURCE_IRQ *irq; 1194 ACPI_STATUS rv; 1195 uint delta; 1196 1197 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1198 if (ACPI_FAILURE(rv)) 1199 goto out; 1200 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1201 if (ACPI_FAILURE(rv)) { 1202 goto out1; 1203 } 1204 1205 bufn.Length = 1000; 1206 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1207 resp = bufp.Pointer; 1208 resc = bufc.Pointer; 1209 while (resc->Id != ACPI_RSTYPE_END_TAG && 1210 resp->Id != ACPI_RSTYPE_END_TAG) { 1211 while (resc->Id != resp->Id && resp->Id != ACPI_RSTYPE_END_TAG) 1212 resp = ACPI_NEXT_RESOURCE(resp); 1213 if (resp->Id == ACPI_RSTYPE_END_TAG) 1214 break; 1215 /* Found identical Id */ 1216 resn->Id = resc->Id; 1217 switch (resc->Id) { 1218 case ACPI_RSTYPE_IRQ: 1219 memcpy(&resn->Data, &resp->Data, 1220 sizeof(ACPI_RESOURCE_IRQ)); 1221 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1222 irq->Interrupts[0] = 1223 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1224 Interrupts[irq->NumberOfInterrupts-1]; 1225 irq->NumberOfInterrupts = 1; 1226 resn->Length = ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_IRQ); 1227 break; 1228 case ACPI_RSTYPE_IO: 1229 memcpy(&resn->Data, &resp->Data, 1230 sizeof(ACPI_RESOURCE_IO)); 1231 resn->Length = resp->Length; 1232 break; 1233 default: 1234 printf("acpi_allocate_resources: res=%d\n", resc->Id); 1235 rv = AE_BAD_DATA; 1236 goto out2; 1237 } 1238 resc = ACPI_NEXT_RESOURCE(resc); 1239 resn = ACPI_NEXT_RESOURCE(resn); 1240 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1241 if (delta >= 1242 bufn.Length-ACPI_SIZEOF_RESOURCE(ACPI_RESOURCE_DATA)) { 1243 bufn.Length *= 2; 1244 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1245 M_ACPI, M_WAITOK); 1246 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1247 } 1248 } 1249 if (resc->Id != ACPI_RSTYPE_END_TAG) { 1250 printf("acpi_allocate_resources: resc not exhausted\n"); 1251 rv = AE_BAD_DATA; 1252 goto out3; 1253 } 1254 1255 resn->Id = ACPI_RSTYPE_END_TAG; 1256 rv = AcpiSetCurrentResources(handle, &bufn); 1257 if (ACPI_FAILURE(rv)) { 1258 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1259 AcpiFormatException(rv)); 1260 } 1261 1262 out3: 1263 free(bufn.Pointer, M_ACPI); 1264 out2: 1265 AcpiOsFree(bufc.Pointer); 1266 out1: 1267 AcpiOsFree(bufp.Pointer); 1268 out: 1269 return rv; 1270 } 1271 #endif /* ACPI_PCI_FIXUP || ACPI_ACTIVATE_DEV */
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