acpi.c revision 1.99
1 /* $NetBSD: acpi.c,v 1.99 2007/02/09 21:55:26 ad 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 1.99 2007/02/09 21:55:26 ad Exp $"); 81 82 #include "opt_acpi.h" 83 #include "opt_pcifixup.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/device.h> 88 #include <sys/malloc.h> 89 #include <sys/kernel.h> 90 #include <sys/proc.h> 91 #include <sys/sysctl.h> 92 93 #include <dev/acpi/acpica.h> 94 #include <dev/acpi/acpireg.h> 95 #include <dev/acpi/acpivar.h> 96 #include <dev/acpi/acpi_osd.h> 97 #include <dev/acpi/acpi_timer.h> 98 #ifdef ACPIVERBOSE 99 #include <dev/acpi/acpidevs_data.h> 100 #endif 101 102 #if defined(ACPI_PCI_FIXUP) 103 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 104 #endif 105 106 #ifdef PCI_INTR_FIXUP_DISABLED 107 #include <dev/pci/pcidevs.h> 108 #endif 109 110 MALLOC_DECLARE(M_ACPI); 111 112 #include <machine/acpi_machdep.h> 113 114 #ifdef ACPI_DEBUGGER 115 #define ACPI_DBGR_INIT 0x01 116 #define ACPI_DBGR_TABLES 0x02 117 #define ACPI_DBGR_ENABLE 0x04 118 #define ACPI_DBGR_PROBE 0x08 119 #define ACPI_DBGR_RUNNING 0x10 120 121 static int acpi_dbgr = 0x00; 122 #endif 123 124 static int acpi_match(struct device *, struct cfdata *, void *); 125 static void acpi_attach(struct device *, struct device *, void *); 126 127 static int acpi_print(void *aux, const char *); 128 129 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 130 131 extern struct cfdriver acpi_cd; 132 133 CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 134 acpi_match, acpi_attach, NULL, NULL); 135 136 /* 137 * This is a flag we set when the ACPI subsystem is active. Machine 138 * dependent code may wish to skip other steps (such as attaching 139 * subsystems that ACPI supercedes) when ACPI is active. 140 */ 141 int acpi_active; 142 int acpi_force_load; 143 144 /* 145 * Pointer to the ACPI subsystem's state. There can be only 146 * one ACPI instance. 147 */ 148 struct acpi_softc *acpi_softc; 149 150 /* 151 * Locking stuff. 152 */ 153 static struct simplelock acpi_slock; 154 static int acpi_locked; 155 156 /* 157 * sysctl-related information 158 */ 159 160 static int acpi_node = CTL_EOL; 161 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 162 static int acpi_sleepstate = ACPI_STATE_S0; 163 164 /* 165 * Prototypes. 166 */ 167 static void acpi_shutdown(void *); 168 static void acpi_build_tree(struct acpi_softc *); 169 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 170 171 static void acpi_enable_fixed_events(struct acpi_softc *); 172 173 /* 174 * acpi_probe: 175 * 176 * Probe for ACPI support. This is called by the 177 * machine-dependent ACPI front-end. All of the 178 * actual work is done by ACPICA. 179 * 180 * NOTE: This is not an autoconfiguration interface function. 181 */ 182 int 183 acpi_probe(void) 184 { 185 static int beenhere; 186 ACPI_STATUS rv; 187 188 if (beenhere != 0) 189 panic("acpi_probe: ACPI has already been probed"); 190 beenhere = 1; 191 192 simple_lock_init(&acpi_slock); 193 acpi_locked = 0; 194 195 /* 196 * Start up ACPICA. 197 */ 198 #ifdef ACPI_DEBUGGER 199 if (acpi_dbgr & ACPI_DBGR_INIT) 200 acpi_osd_debugger(); 201 #endif 202 203 rv = AcpiInitializeSubsystem(); 204 if (ACPI_FAILURE(rv)) { 205 printf("ACPI: unable to initialize ACPICA: %s\n", 206 AcpiFormatException(rv)); 207 return 0; 208 } 209 210 #ifdef ACPI_DEBUGGER 211 if (acpi_dbgr & ACPI_DBGR_TABLES) 212 acpi_osd_debugger(); 213 #endif 214 215 rv = AcpiLoadTables(); 216 if (ACPI_FAILURE(rv)) { 217 printf("ACPI: unable to load tables: %s\n", 218 AcpiFormatException(rv)); 219 return 0; 220 } 221 222 223 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 224 printf("ACPI: BIOS implementation in listed as broken:\n"); 225 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 226 "AslId <%4.4s,%08x>\n", 227 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 228 AcpiGbl_XSDT->OemRevision, 229 AcpiGbl_XSDT->AslCompilerId, 230 AcpiGbl_XSDT->AslCompilerRevision); 231 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 232 return 0; 233 } 234 235 /* 236 * Looks like we have ACPI! 237 */ 238 239 return 1; 240 } 241 242 static int 243 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 244 { 245 struct cfattach *ca; 246 247 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 248 return (ca == &acpi_ca); 249 } 250 251 int 252 acpi_check(device_t parent, const char *ifattr) 253 { 254 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 255 } 256 257 ACPI_STATUS 258 acpi_OsGetRootPointer(UINT32 Flags, ACPI_POINTER *PhysicalAddress) 259 { 260 ACPI_STATUS rv; 261 262 /* 263 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 264 * 265 * IA-64: Use the EFI. 266 * 267 * We let MD code handle this since there are multiple 268 * ways to do it. 269 */ 270 271 rv = acpi_md_OsGetRootPointer(Flags, PhysicalAddress); 272 273 if (acpi_root_pointer == 0 && ACPI_SUCCESS(rv)) 274 acpi_root_pointer = 275 (uint64_t)PhysicalAddress->Pointer.Physical; 276 277 return rv; 278 } 279 280 /* 281 * acpi_match: 282 * 283 * Autoconfiguration `match' routine. 284 */ 285 static int 286 acpi_match(struct device *parent, struct cfdata *match, 287 void *aux) 288 { 289 /* 290 * XXX Check other locators? Hard to know -- machine 291 * dependent code has already checked for the presence 292 * of ACPI by calling acpi_probe(), so I suppose we 293 * don't really have to do anything else. 294 */ 295 return 1; 296 } 297 298 /* 299 * acpi_attach: 300 * 301 * Autoconfiguration `attach' routine. Finish initializing 302 * ACPICA (some initialization was done in acpi_probe(), 303 * which was required to check for the presence of ACPI), 304 * and enable the ACPI subsystem. 305 */ 306 static void 307 acpi_attach(struct device *parent, struct device *self, void *aux) 308 { 309 struct acpi_softc *sc = (void *) self; 310 struct acpibus_attach_args *aa = aux; 311 ACPI_STATUS rv; 312 313 aprint_naive(": Advanced Configuration and Power Interface\n"); 314 aprint_normal(": Advanced Configuration and Power Interface\n"); 315 316 if (acpi_softc != NULL) 317 panic("acpi_attach: ACPI has already been attached"); 318 319 sysmon_power_settype("acpi"); 320 321 aprint_verbose("%s: using Intel ACPI CA subsystem version %08x\n", 322 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 323 324 aprint_verbose("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 325 sc->sc_dev.dv_xname, 326 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 327 AcpiGbl_XSDT->OemRevision, 328 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 329 330 sc->sc_quirks = acpi_find_quirks(); 331 332 sc->sc_iot = aa->aa_iot; 333 sc->sc_memt = aa->aa_memt; 334 sc->sc_pc = aa->aa_pc; 335 sc->sc_pciflags = aa->aa_pciflags; 336 sc->sc_ic = aa->aa_ic; 337 338 acpi_softc = sc; 339 340 /* 341 * Bring ACPI on-line. 342 */ 343 #ifdef ACPI_DEBUGGER 344 if (acpi_dbgr & ACPI_DBGR_ENABLE) 345 acpi_osd_debugger(); 346 #endif 347 348 rv = AcpiEnableSubsystem(0); 349 if (ACPI_FAILURE(rv)) { 350 aprint_error("%s: unable to enable ACPI: %s\n", 351 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 352 return; 353 } 354 355 /* early EC handler initialization if ECDT table is available */ 356 #if NACPIEC > 0 357 acpiec_early_attach(&sc->sc_dev); 358 #endif 359 360 rv = AcpiInitializeObjects(0); 361 if (ACPI_FAILURE(rv)) { 362 aprint_error("%s: unable to initialize ACPI objects: %s\n", 363 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 364 return; 365 } 366 acpi_active = 1; 367 368 /* Our current state is "awake". */ 369 sc->sc_sleepstate = ACPI_STATE_S0; 370 371 /* Show SCI interrupt. */ 372 if (AcpiGbl_FADT != NULL) 373 aprint_verbose("%s: SCI interrupting at int %d\n", 374 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 375 /* 376 * Check for fixed-hardware features. 377 */ 378 acpi_enable_fixed_events(sc); 379 acpitimer_init(); 380 381 /* 382 * Scan the namespace and build our device tree. 383 */ 384 #ifdef ACPI_DEBUGGER 385 if (acpi_dbgr & ACPI_DBGR_PROBE) 386 acpi_osd_debugger(); 387 #endif 388 acpi_md_callback((struct device *)sc); 389 acpi_build_tree(sc); 390 391 if (acpi_root_pointer != 0 && acpi_node != CTL_EOL) { 392 (void)sysctl_createv(NULL, 0, NULL, NULL, 393 CTLFLAG_IMMEDIATE, 394 CTLTYPE_QUAD, "root", NULL, NULL, 395 acpi_root_pointer, NULL, 0, 396 CTL_HW, acpi_node, CTL_CREATE, CTL_EOL); 397 } 398 399 400 /* 401 * Register a shutdown hook that disables certain ACPI 402 * events that might happen and confuse us while we're 403 * trying to shut down. 404 */ 405 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 406 if (sc->sc_sdhook == NULL) 407 aprint_error("%s: WARNING: unable to register shutdown hook\n", 408 sc->sc_dev.dv_xname); 409 410 #ifdef ACPI_DEBUGGER 411 if (acpi_dbgr & ACPI_DBGR_RUNNING) 412 acpi_osd_debugger(); 413 #endif 414 } 415 416 /* 417 * acpi_shutdown: 418 * 419 * Shutdown hook for ACPI -- disable some events that 420 * might confuse us. 421 */ 422 static void 423 acpi_shutdown(void *arg) 424 { 425 /* nothing */ 426 } 427 428 #if 0 429 /* 430 * acpi_disable: 431 * 432 * Disable ACPI. 433 */ 434 static ACPI_STATUS 435 acpi_disable(struct acpi_softc *sc) 436 { 437 ACPI_STATUS rv = AE_OK; 438 439 if (acpi_active) { 440 rv = AcpiDisable(); 441 if (ACPI_SUCCESS(rv)) 442 acpi_active = 0; 443 } 444 return rv; 445 } 446 #endif 447 448 struct acpi_make_devnode_state { 449 struct acpi_softc *softc; 450 struct acpi_scope *scope; 451 }; 452 453 /* 454 * acpi_build_tree: 455 * 456 * Scan relevant portions of the ACPI namespace and attach 457 * child devices. 458 */ 459 static void 460 acpi_build_tree(struct acpi_softc *sc) 461 { 462 static const char *scopes[] = { 463 "\\_PR_", /* ACPI 1.0 processor namespace */ 464 "\\_SB_", /* system bus namespace */ 465 "\\_SI_", /* system indicator namespace */ 466 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 467 NULL, 468 }; 469 struct acpi_attach_args aa; 470 struct acpi_make_devnode_state state; 471 struct acpi_scope *as; 472 struct acpi_devnode *ad; 473 ACPI_HANDLE parent; 474 ACPI_STATUS rv; 475 int i; 476 477 TAILQ_INIT(&sc->sc_scopes); 478 479 state.softc = sc; 480 481 /* 482 * Scan the namespace and build our tree. 483 */ 484 for (i = 0; scopes[i] != NULL; i++) { 485 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 486 as->as_name = scopes[i]; 487 TAILQ_INIT(&as->as_devnodes); 488 489 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 490 491 state.scope = as; 492 493 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 494 &parent); 495 if (ACPI_SUCCESS(rv)) { 496 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 497 acpi_make_devnode, &state, NULL); 498 } 499 500 /* Now, for this namespace, try and attach the devices. */ 501 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 502 aa.aa_node = ad; 503 aa.aa_iot = sc->sc_iot; 504 aa.aa_memt = sc->sc_memt; 505 aa.aa_pc = sc->sc_pc; 506 aa.aa_pciflags = sc->sc_pciflags; 507 aa.aa_ic = sc->sc_ic; 508 509 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 510 /* 511 * XXX We only attach devices which are: 512 * 513 * - present 514 * - enabled 515 * - functioning properly 516 * 517 * However, if enabled, it's decoding resources, 518 * so we should claim them, if possible. 519 * Requires changes to bus_space(9). 520 */ 521 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 522 ACPI_VALID_STA && 523 (ad->ad_devinfo->CurrentStatus & 524 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 525 ACPI_STA_DEV_OK)) != 526 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 527 ACPI_STA_DEV_OK)) 528 continue; 529 530 /* 531 * XXX Same problem as above... 532 */ 533 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 534 == 0) 535 continue; 536 } 537 538 ad->ad_device = config_found_ia(&sc->sc_dev, 539 "acpinodebus", &aa, acpi_print); 540 } 541 } 542 config_found_ia(&sc->sc_dev, "acpiapmbus", NULL, NULL); 543 } 544 545 #ifdef ACPI_ACTIVATE_DEV 546 static void 547 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 548 { 549 ACPI_STATUS rv; 550 ACPI_BUFFER buf; 551 552 buf.Pointer = NULL; 553 buf.Length = ACPI_ALLOCATE_BUFFER; 554 555 #ifdef ACPI_DEBUG 556 aprint_normal("acpi_activate_device: %s, old status=%x\n", 557 (*di)->HardwareId.Value, (*di)->CurrentStatus); 558 #endif 559 560 rv = acpi_allocate_resources(handle); 561 if (ACPI_FAILURE(rv)) { 562 aprint_error("acpi: activate failed for %s\n", 563 (*di)->HardwareId.Value); 564 } else { 565 aprint_verbose("acpi: activated %s\n", 566 (*di)->HardwareId.Value); 567 } 568 569 (void)AcpiGetObjectInfo(handle, &buf); 570 AcpiOsFree(*di); 571 *di = buf.Pointer; 572 573 #ifdef ACPI_DEBUG 574 aprint_normal("acpi_activate_device: %s, new status=%x\n", 575 (*di)->HardwareId.Value, (*di)->CurrentStatus); 576 #endif 577 } 578 #endif /* ACPI_ACTIVATE_DEV */ 579 580 /* 581 * acpi_make_devnode: 582 * 583 * Make an ACPI devnode. 584 */ 585 static ACPI_STATUS 586 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 587 void **status) 588 { 589 struct acpi_make_devnode_state *state = context; 590 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 591 struct acpi_softc *sc = state->softc; 592 #endif 593 struct acpi_scope *as = state->scope; 594 struct acpi_devnode *ad; 595 ACPI_OBJECT_TYPE type; 596 ACPI_BUFFER buf; 597 ACPI_DEVICE_INFO *devinfo; 598 ACPI_STATUS rv; 599 600 rv = AcpiGetType(handle, &type); 601 if (ACPI_SUCCESS(rv)) { 602 buf.Pointer = NULL; 603 buf.Length = ACPI_ALLOCATE_BUFFER; 604 rv = AcpiGetObjectInfo(handle, &buf); 605 if (ACPI_FAILURE(rv)) { 606 #ifdef ACPI_DEBUG 607 aprint_normal("%s: AcpiGetObjectInfo failed: %s\n", 608 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 609 #endif 610 goto out; /* XXX why return OK */ 611 } 612 613 devinfo = buf.Pointer; 614 615 switch (type) { 616 case ACPI_TYPE_DEVICE: 617 #ifdef ACPI_ACTIVATE_DEV 618 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 619 (ACPI_VALID_STA|ACPI_VALID_HID) && 620 (devinfo->CurrentStatus & 621 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 622 ACPI_STA_DEV_PRESENT) 623 acpi_activate_device(handle, &devinfo); 624 625 /* FALLTHROUGH */ 626 #endif 627 628 case ACPI_TYPE_PROCESSOR: 629 case ACPI_TYPE_THERMAL: 630 case ACPI_TYPE_POWER: 631 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 632 if (ad == NULL) 633 return AE_NO_MEMORY; 634 635 ad->ad_devinfo = devinfo; 636 ad->ad_handle = handle; 637 ad->ad_level = level; 638 ad->ad_scope = as; 639 ad->ad_type = type; 640 641 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 642 643 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 644 goto out; 645 646 #ifdef ACPI_EXTRA_DEBUG 647 aprint_normal("%s: HID %s found in scope %s level %d\n", 648 sc->sc_dev.dv_xname, 649 ad->ad_devinfo->HardwareId.Value, 650 as->as_name, ad->ad_level); 651 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 652 aprint_normal(" UID %s\n", 653 ad->ad_devinfo->UniqueId.Value); 654 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 655 aprint_normal(" ADR 0x%016qx\n", 656 ad->ad_devinfo->Address); 657 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 658 aprint_normal(" STA 0x%08x\n", 659 ad->ad_devinfo->CurrentStatus); 660 #endif 661 } 662 } 663 out: 664 return AE_OK; 665 } 666 667 /* 668 * acpi_print: 669 * 670 * Autoconfiguration print routine for ACPI node bus. 671 */ 672 static int 673 acpi_print(void *aux, const char *pnp) 674 { 675 struct acpi_attach_args *aa = aux; 676 ACPI_STATUS rv; 677 678 if (pnp) { 679 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 680 char *pnpstr = 681 aa->aa_node->ad_devinfo->HardwareId.Value; 682 char *str; 683 684 aprint_normal("%s ", pnpstr); 685 rv = acpi_eval_string(aa->aa_node->ad_handle, 686 "_STR", &str); 687 if (ACPI_SUCCESS(rv)) { 688 aprint_normal("[%s] ", str); 689 AcpiOsFree(str); 690 } 691 #ifdef ACPIVERBOSE 692 else { 693 int i; 694 695 for (i = 0; i < sizeof(acpi_knowndevs) / 696 sizeof(acpi_knowndevs[0]); i++) { 697 if (strcmp(acpi_knowndevs[i].pnp, 698 pnpstr) == 0) { 699 aprint_normal("[%s] ", 700 acpi_knowndevs[i].str); 701 } 702 } 703 } 704 705 #endif 706 } else { 707 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 708 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 709 aa->aa_node->ad_devinfo->Type); 710 } 711 aprint_normal("at %s", pnp); 712 } else { 713 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 714 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 715 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 716 const char *uid; 717 718 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 719 if (uid[0] == '\0') 720 uid = "<null>"; 721 aprint_normal("-%s", uid); 722 } 723 aprint_normal(")"); 724 } 725 } 726 727 return UNCONF; 728 } 729 730 /***************************************************************************** 731 * ACPI fixed-hardware feature handlers 732 *****************************************************************************/ 733 734 static UINT32 acpi_fixed_button_handler(void *); 735 static void acpi_fixed_button_pressed(void *); 736 737 /* 738 * acpi_enable_fixed_events: 739 * 740 * Enable any fixed-hardware feature handlers. 741 */ 742 static void 743 acpi_enable_fixed_events(struct acpi_softc *sc) 744 { 745 static int beenhere; 746 ACPI_STATUS rv; 747 748 KASSERT(beenhere == 0); 749 beenhere = 1; 750 751 /* 752 * Check for fixed-hardware buttons. 753 */ 754 755 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 756 aprint_verbose("%s: fixed-feature power button present\n", 757 sc->sc_dev.dv_xname); 758 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 759 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 760 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 761 aprint_error("%s: unable to register fixed power " 762 "button with sysmon\n", sc->sc_dev.dv_xname); 763 } else { 764 rv = AcpiInstallFixedEventHandler( 765 ACPI_EVENT_POWER_BUTTON, 766 acpi_fixed_button_handler, &sc->sc_smpsw_power); 767 if (ACPI_FAILURE(rv)) { 768 aprint_error("%s: unable to install handler " 769 "for fixed power button: %s\n", 770 sc->sc_dev.dv_xname, 771 AcpiFormatException(rv)); 772 } 773 } 774 } 775 776 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 777 aprint_verbose("%s: fixed-feature sleep button present\n", 778 sc->sc_dev.dv_xname); 779 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 780 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 781 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 782 aprint_error("%s: unable to register fixed sleep " 783 "button with sysmon\n", sc->sc_dev.dv_xname); 784 } else { 785 rv = AcpiInstallFixedEventHandler( 786 ACPI_EVENT_SLEEP_BUTTON, 787 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 788 if (ACPI_FAILURE(rv)) { 789 aprint_error("%s: unable to install handler " 790 "for fixed sleep button: %s\n", 791 sc->sc_dev.dv_xname, 792 AcpiFormatException(rv)); 793 } 794 } 795 } 796 } 797 798 /* 799 * acpi_fixed_button_handler: 800 * 801 * Event handler for the fixed buttons. 802 */ 803 static UINT32 804 acpi_fixed_button_handler(void *context) 805 { 806 struct sysmon_pswitch *smpsw = context; 807 int rv; 808 809 #ifdef ACPI_BUT_DEBUG 810 printf("%s: fixed button handler\n", smpsw->smpsw_name); 811 #endif 812 813 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 814 acpi_fixed_button_pressed, smpsw); 815 if (ACPI_FAILURE(rv)) 816 printf("%s: WARNING: unable to queue fixed button pressed " 817 "callback: %s\n", smpsw->smpsw_name, 818 AcpiFormatException(rv)); 819 820 return ACPI_INTERRUPT_HANDLED; 821 } 822 823 /* 824 * acpi_fixed_button_pressed: 825 * 826 * Deal with a fixed button being pressed. 827 */ 828 static void 829 acpi_fixed_button_pressed(void *context) 830 { 831 struct sysmon_pswitch *smpsw = context; 832 833 #ifdef ACPI_BUT_DEBUG 834 printf("%s: fixed button pressed, calling sysmon\n", 835 smpsw->smpsw_name); 836 #endif 837 838 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 839 } 840 841 /***************************************************************************** 842 * ACPI utility routines. 843 *****************************************************************************/ 844 845 /* 846 * acpi_eval_integer: 847 * 848 * Evaluate an integer object. 849 */ 850 ACPI_STATUS 851 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 852 { 853 ACPI_STATUS rv; 854 ACPI_BUFFER buf; 855 ACPI_OBJECT param; 856 857 if (handle == NULL) 858 handle = ACPI_ROOT_OBJECT; 859 860 buf.Pointer = ¶m; 861 buf.Length = sizeof(param); 862 863 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 864 if (ACPI_SUCCESS(rv)) 865 *valp = param.Integer.Value; 866 867 return rv; 868 } 869 870 /* 871 * acpi_eval_string: 872 * 873 * Evaluate a (Unicode) string object. 874 */ 875 ACPI_STATUS 876 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 877 { 878 ACPI_STATUS rv; 879 ACPI_BUFFER buf; 880 881 if (handle == NULL) 882 handle = ACPI_ROOT_OBJECT; 883 884 buf.Pointer = NULL; 885 buf.Length = ACPI_ALLOCATE_BUFFER; 886 887 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 888 if (ACPI_SUCCESS(rv)) { 889 ACPI_OBJECT *param = buf.Pointer; 890 const char *ptr = param->String.Pointer; 891 size_t len = param->String.Length; 892 if ((*stringp = AcpiOsAllocate(len)) == NULL) 893 rv = AE_NO_MEMORY; 894 else 895 (void)memcpy(*stringp, ptr, len); 896 AcpiOsFree(param); 897 } 898 899 return rv; 900 } 901 902 903 /* 904 * acpi_eval_struct: 905 * 906 * Evaluate a more complex structure. 907 * Caller must free buf.Pointer by AcpiOsFree(). 908 */ 909 ACPI_STATUS 910 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 911 { 912 ACPI_STATUS rv; 913 914 if (handle == NULL) 915 handle = ACPI_ROOT_OBJECT; 916 917 bufp->Pointer = NULL; 918 bufp->Length = ACPI_ALLOCATE_BUFFER; 919 920 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 921 922 return rv; 923 } 924 925 /* 926 * acpi_foreach_package_object: 927 * 928 * Iterate over all objects in a in a packages and pass then all 929 * to a function. If the called function returns non AE_OK, the 930 * iteration is stopped and that value is returned. 931 */ 932 933 ACPI_STATUS 934 acpi_foreach_package_object(ACPI_OBJECT *pkg, 935 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 936 void *arg) 937 { 938 ACPI_STATUS rv = AE_OK; 939 int i; 940 941 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 942 return AE_BAD_PARAMETER; 943 944 for (i = 0; i < pkg->Package.Count; i++) { 945 rv = (*func)(&pkg->Package.Elements[i], arg); 946 if (ACPI_FAILURE(rv)) 947 break; 948 } 949 950 return rv; 951 } 952 953 const char * 954 acpi_name(ACPI_HANDLE handle) 955 { 956 static char buffer[80]; 957 ACPI_BUFFER buf; 958 ACPI_STATUS rv; 959 960 buf.Length = sizeof(buffer); 961 buf.Pointer = buffer; 962 963 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 964 if (ACPI_FAILURE(rv)) 965 return "(unknown acpi path)"; 966 return buffer; 967 } 968 969 /* 970 * acpi_get: 971 * 972 * Fetch data info the specified (empty) ACPI buffer. 973 * Caller must free buf.Pointer by AcpiOsFree(). 974 */ 975 ACPI_STATUS 976 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 977 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 978 { 979 buf->Pointer = NULL; 980 buf->Length = ACPI_ALLOCATE_BUFFER; 981 982 return (*getit)(handle, buf); 983 } 984 985 986 /* 987 * acpi_match_hid 988 * 989 * Match given ids against _HID and _CIDs 990 */ 991 int 992 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 993 { 994 int i; 995 996 while (*ids) { 997 if (ad->Valid & ACPI_VALID_HID) { 998 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 999 return 1; 1000 } 1001 1002 if (ad->Valid & ACPI_VALID_CID) { 1003 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1004 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1005 return 1; 1006 } 1007 } 1008 ids++; 1009 } 1010 1011 return 0; 1012 } 1013 1014 /* 1015 * acpi_set_wake_gpe 1016 * 1017 * Set GPE as both Runtime and Wake 1018 */ 1019 void 1020 acpi_set_wake_gpe(ACPI_HANDLE handle) 1021 { 1022 ACPI_BUFFER buf; 1023 ACPI_STATUS rv; 1024 ACPI_OBJECT *p, *elt; 1025 1026 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1027 if (ACPI_FAILURE(rv)) 1028 return; /* just ignore */ 1029 1030 p = buf.Pointer; 1031 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1032 goto out; /* just ignore */ 1033 1034 elt = p->Package.Elements; 1035 1036 /* TBD: package support */ 1037 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1038 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1039 1040 out: 1041 AcpiOsFree(buf.Pointer); 1042 } 1043 1044 1045 /***************************************************************************** 1046 * ACPI sleep support. 1047 *****************************************************************************/ 1048 1049 static int 1050 is_available_state(struct acpi_softc *sc, int state) 1051 { 1052 UINT8 type_a, type_b; 1053 1054 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1055 &type_a, &type_b)); 1056 } 1057 1058 /* 1059 * acpi_enter_sleep_state: 1060 * 1061 * enter to the specified sleep state. 1062 */ 1063 1064 ACPI_STATUS 1065 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1066 { 1067 int s; 1068 ACPI_STATUS ret = AE_OK; 1069 1070 if (state == acpi_sleepstate) 1071 return AE_OK; 1072 1073 aprint_normal("%s: entering state %d\n", sc->sc_dev.dv_xname, state); 1074 1075 switch (state) { 1076 case ACPI_STATE_S0: 1077 break; 1078 case ACPI_STATE_S1: 1079 case ACPI_STATE_S2: 1080 case ACPI_STATE_S3: 1081 case ACPI_STATE_S4: 1082 if (!is_available_state(sc, state)) { 1083 aprint_error("%s: cannot enter the sleep state (%d).\n", 1084 sc->sc_dev.dv_xname, state); 1085 break; 1086 } 1087 ret = AcpiEnterSleepStatePrep(state); 1088 if (ACPI_FAILURE(ret)) { 1089 aprint_error("%s: failed preparing to sleep (%s)\n", 1090 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1091 break; 1092 } 1093 acpi_sleepstate = state; 1094 if (state == ACPI_STATE_S1) { 1095 /* just enter the state */ 1096 acpi_md_OsDisableInterrupt(); 1097 AcpiEnterSleepState((UINT8)state); 1098 } else { 1099 /* XXX: powerhooks(9) framework is too poor to 1100 * support ACPI sleep state... 1101 */ 1102 dopowerhooks(PWR_SOFTSUSPEND); 1103 s = splhigh(); 1104 dopowerhooks(PWR_SUSPEND); 1105 acpi_md_sleep(state); 1106 dopowerhooks(PWR_RESUME); 1107 splx(s); 1108 dopowerhooks(PWR_SOFTRESUME); 1109 if (state==ACPI_STATE_S4) 1110 AcpiEnable(); 1111 } 1112 AcpiLeaveSleepState((UINT8)state); 1113 break; 1114 case ACPI_STATE_S5: 1115 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1116 if (ACPI_FAILURE(ret)) { 1117 aprint_error("%s: failed preparing to sleep (%s)\n", 1118 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1119 break; 1120 } 1121 acpi_sleepstate = state; 1122 acpi_md_OsDisableInterrupt(); 1123 AcpiEnterSleepState(ACPI_STATE_S5); 1124 aprint_error("%s: WARNING powerdown failed!\n", 1125 sc->sc_dev.dv_xname); 1126 break; 1127 } 1128 1129 aprint_normal("%s: resuming\n", sc->sc_dev.dv_xname); 1130 acpi_sleepstate = ACPI_STATE_S0; 1131 return ret; 1132 } 1133 1134 #if defined(ACPI_ACTIVATE_DEV) 1135 /* XXX This very incomplete */ 1136 ACPI_STATUS 1137 acpi_allocate_resources(ACPI_HANDLE handle) 1138 { 1139 ACPI_BUFFER bufp, bufc, bufn; 1140 ACPI_RESOURCE *resp, *resc, *resn; 1141 ACPI_RESOURCE_IRQ *irq; 1142 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1143 ACPI_STATUS rv; 1144 uint delta; 1145 1146 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1147 if (ACPI_FAILURE(rv)) 1148 goto out; 1149 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1150 if (ACPI_FAILURE(rv)) { 1151 goto out1; 1152 } 1153 1154 bufn.Length = 1000; 1155 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1156 resp = bufp.Pointer; 1157 resc = bufc.Pointer; 1158 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1159 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1160 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1161 resp = ACPI_NEXT_RESOURCE(resp); 1162 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1163 break; 1164 /* Found identical Id */ 1165 resn->Type = resc->Type; 1166 switch (resc->Type) { 1167 case ACPI_RESOURCE_TYPE_IRQ: 1168 memcpy(&resn->Data, &resp->Data, 1169 sizeof(ACPI_RESOURCE_IRQ)); 1170 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1171 irq->Interrupts[0] = 1172 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1173 Interrupts[irq->InterruptCount-1]; 1174 irq->InterruptCount = 1; 1175 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1176 break; 1177 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1178 memcpy(&resn->Data, &resp->Data, 1179 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1180 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1181 #if 0 1182 /* 1183 * XXX not duplicating the interrupt logic above 1184 * because its not clear what it accomplishes. 1185 */ 1186 xirq->Interrupts[0] = 1187 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1188 Interrupts[irq->NumberOfInterrupts-1]; 1189 xirq->NumberOfInterrupts = 1; 1190 #endif 1191 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1192 break; 1193 case ACPI_RESOURCE_TYPE_IO: 1194 memcpy(&resn->Data, &resp->Data, 1195 sizeof(ACPI_RESOURCE_IO)); 1196 resn->Length = resp->Length; 1197 break; 1198 default: 1199 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1200 rv = AE_BAD_DATA; 1201 goto out2; 1202 } 1203 resc = ACPI_NEXT_RESOURCE(resc); 1204 resn = ACPI_NEXT_RESOURCE(resn); 1205 resp = ACPI_NEXT_RESOURCE(resp); 1206 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1207 if (delta >= 1208 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1209 bufn.Length *= 2; 1210 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1211 M_ACPI, M_WAITOK); 1212 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1213 } 1214 } 1215 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1216 printf("acpi_allocate_resources: resc not exhausted\n"); 1217 rv = AE_BAD_DATA; 1218 goto out3; 1219 } 1220 1221 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1222 rv = AcpiSetCurrentResources(handle, &bufn); 1223 if (ACPI_FAILURE(rv)) { 1224 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1225 AcpiFormatException(rv)); 1226 } 1227 1228 out3: 1229 free(bufn.Pointer, M_ACPI); 1230 out2: 1231 AcpiOsFree(bufc.Pointer); 1232 out1: 1233 AcpiOsFree(bufp.Pointer); 1234 out: 1235 return rv; 1236 } 1237 #endif /* ACPI_ACTIVATE_DEV */ 1238 1239 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1240 { 1241 const struct sysctlnode *node; 1242 const struct sysctlnode *ssnode; 1243 1244 if (sysctl_createv(clog, 0, NULL, NULL, 1245 CTLFLAG_PERMANENT, 1246 CTLTYPE_NODE, "hw", NULL, 1247 NULL, 0, NULL, 0, 1248 CTL_HW, CTL_EOL) != 0) 1249 return; 1250 1251 if (sysctl_createv(clog, 0, NULL, &node, 1252 CTLFLAG_PERMANENT, 1253 CTLTYPE_NODE, "acpi", NULL, 1254 NULL, 0, NULL, 0, 1255 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1256 return; 1257 1258 acpi_node = node->sysctl_num; 1259 1260 /* ACPI sleepstate sysctl */ 1261 if (sysctl_createv(NULL, 0, NULL, &node, 1262 CTLFLAG_PERMANENT, 1263 CTLTYPE_NODE, "machdep", NULL, 1264 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1265 return; 1266 if (sysctl_createv(NULL, 0, &node, &ssnode, 1267 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1268 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1269 CTL_EOL) != 0) 1270 return; 1271 } 1272 1273 static int 1274 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1275 { 1276 int error, t; 1277 struct sysctlnode node; 1278 1279 node = *rnode; 1280 t = acpi_sleepstate; 1281 node.sysctl_data = &t; 1282 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1283 if (error || newp == NULL) 1284 return error; 1285 1286 if (acpi_softc == NULL) 1287 return ENOSYS; 1288 1289 acpi_enter_sleep_state(acpi_softc, t); 1290 1291 return 0; 1292 } 1293
Indexes created Wed Oct 01 19:09:53 GMT 2025