acpi.c revision 1.164
1 /* $NetBSD: acpi.c,v 1.164 2010/04/08 04:40:51 jruoho Exp $ */ 2 3 /*- 4 * Copyright (c) 2003, 2007 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright 2001, 2003 Wasabi Systems, Inc. 34 * All rights reserved. 35 * 36 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. All advertising materials mentioning features or use of this software 47 * must display the following acknowledgement: 48 * This product includes software developed for the NetBSD Project by 49 * Wasabi Systems, Inc. 50 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 51 * or promote products derived from this software without specific prior 52 * written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 56 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 57 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 58 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 59 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 60 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 61 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 62 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 63 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 64 * POSSIBILITY OF SUCH DAMAGE. 65 */ 66 67 /* 68 * Autoconfiguration support for the Intel ACPI Component Architecture 69 * ACPI reference implementation. 70 */ 71 72 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.164 2010/04/08 04:40:51 jruoho Exp $"); 74 75 #include "opt_acpi.h" 76 #include "opt_pcifixup.h" 77 78 #include <sys/param.h> 79 #include <sys/device.h> 80 #include <sys/kernel.h> 81 #include <sys/malloc.h> 82 #include <sys/mutex.h> 83 #include <sys/sysctl.h> 84 #include <sys/systm.h> 85 86 #include <dev/acpi/acpireg.h> 87 #include <dev/acpi/acpivar.h> 88 #include <dev/acpi/acpi_osd.h> 89 #include <dev/acpi/acpi_pci.h> 90 #include <dev/acpi/acpi_timer.h> 91 #include <dev/acpi/acpi_wakedev.h> 92 93 #ifdef ACPIVERBOSE 94 #include <dev/acpi/acpidevs_data.h> 95 #endif 96 97 #define _COMPONENT ACPI_TOOLS 98 ACPI_MODULE_NAME ("acpi") 99 100 #if defined(ACPI_PCI_FIXUP) 101 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 102 #endif 103 104 #ifdef PCI_INTR_FIXUP_DISABLED 105 #include <dev/pci/pcidevs.h> 106 #endif 107 108 MALLOC_DECLARE(M_ACPI); 109 110 #include <machine/acpi_machdep.h> 111 112 #ifdef ACPI_DEBUGGER 113 #define ACPI_DBGR_INIT 0x01 114 #define ACPI_DBGR_TABLES 0x02 115 #define ACPI_DBGR_ENABLE 0x04 116 #define ACPI_DBGR_PROBE 0x08 117 #define ACPI_DBGR_RUNNING 0x10 118 119 static int acpi_dbgr = 0x00; 120 #endif 121 122 static ACPI_TABLE_DESC acpi_initial_tables[128]; 123 124 static int acpi_match(device_t, cfdata_t, void *); 125 static void acpi_attach(device_t, device_t, void *); 126 static void acpi_childdet(device_t, device_t); 127 static int acpi_detach(device_t, int); 128 129 static int acpi_rescan(device_t, const char *, const int *); 130 static void acpi_rescan1(struct acpi_softc *, const char *, const int *); 131 static void acpi_rescan_nodes(struct acpi_softc *); 132 static void acpi_rescan_capabilities(struct acpi_softc *); 133 134 static int acpi_print(void *aux, const char *); 135 136 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 137 138 extern struct cfdriver acpi_cd; 139 140 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 141 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 142 143 /* 144 * This is a flag we set when the ACPI subsystem is active. Machine 145 * dependent code may wish to skip other steps (such as attaching 146 * subsystems that ACPI supercedes) when ACPI is active. 147 */ 148 int acpi_active; 149 int acpi_force_load; 150 int acpi_suspended = 0; 151 152 /* 153 * Pointer to the ACPI subsystem's state. There can be only 154 * one ACPI instance. 155 */ 156 struct acpi_softc *acpi_softc; 157 158 /* 159 * Locking stuff. 160 */ 161 extern kmutex_t acpi_interrupt_list_mtx; 162 163 /* 164 * Ignored HIDs. 165 */ 166 static const char * const acpi_ignored_ids[] = { 167 #if defined(i386) || defined(x86_64) 168 "PNP0000", /* AT interrupt controller is handled internally */ 169 "PNP0200", /* AT DMA controller is handled internally */ 170 "PNP0A??", /* PCI Busses are handled internally */ 171 "PNP0B00", /* AT RTC is handled internally */ 172 "PNP0C01", /* No "System Board" driver */ 173 "PNP0C02", /* No "PnP motherboard register resources" driver */ 174 "PNP0C0B", /* No need for "ACPI fan" driver */ 175 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 176 "IFX0102", /* No driver for Infineon TPM */ 177 "INT0800", /* No driver for Intel Firmware Hub device */ 178 #endif 179 #if defined(x86_64) 180 "PNP0C04", /* FPU is handled internally */ 181 #endif 182 NULL 183 }; 184 185 /* 186 * sysctl-related information 187 */ 188 189 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 190 static int acpi_sleepstate = ACPI_STATE_S0; 191 static char acpi_supported_states[3 * 6 + 1] = ""; 192 193 /* 194 * Prototypes. 195 */ 196 static void acpi_build_tree(struct acpi_softc *); 197 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, uint32_t, 198 void *, void **); 199 200 static void acpi_enable_fixed_events(struct acpi_softc *); 201 202 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 203 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 204 static int is_available_state(struct acpi_softc *, int); 205 206 static bool acpi_suspend(device_t, const pmf_qual_t *); 207 static bool acpi_resume(device_t, const pmf_qual_t *); 208 209 #ifdef ACPI_ACTIVATE_DEV 210 static void acpi_activate_device(ACPI_HANDLE, ACPI_DEVICE_INFO **); 211 static ACPI_STATUS acpi_allocate_resources(ACPI_HANDLE); 212 #endif 213 214 /* 215 * acpi_probe: 216 * 217 * Probe for ACPI support. This is called by the 218 * machine-dependent ACPI front-end. All of the 219 * actual work is done by ACPICA. 220 * 221 * NOTE: This is not an autoconfiguration interface function. 222 */ 223 int 224 acpi_probe(void) 225 { 226 static int beenhere; 227 ACPI_TABLE_HEADER *rsdt; 228 ACPI_STATUS rv; 229 230 if (beenhere != 0) 231 panic("acpi_probe: ACPI has already been probed"); 232 beenhere = 1; 233 234 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 235 236 /* 237 * Start up ACPICA. 238 */ 239 #ifdef ACPI_DEBUGGER 240 if (acpi_dbgr & ACPI_DBGR_INIT) 241 acpi_osd_debugger(); 242 #endif 243 244 AcpiGbl_AllMethodsSerialized = FALSE; 245 AcpiGbl_EnableInterpreterSlack = TRUE; 246 247 rv = AcpiInitializeSubsystem(); 248 if (ACPI_FAILURE(rv)) { 249 printf("ACPI: unable to initialize ACPICA: %s\n", 250 AcpiFormatException(rv)); 251 return 0; 252 } 253 254 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 255 if (ACPI_FAILURE(rv)) { 256 #ifdef ACPI_DEBUG 257 printf("ACPI: unable to initialize ACPI tables: %s\n", 258 AcpiFormatException(rv)); 259 #endif 260 AcpiTerminate(); 261 return 0; 262 } 263 264 rv = AcpiReallocateRootTable(); 265 if (ACPI_FAILURE(rv)) { 266 printf("ACPI: unable to reallocate root table: %s\n", 267 AcpiFormatException(rv)); 268 AcpiTerminate(); 269 return 0; 270 } 271 272 #ifdef ACPI_DEBUGGER 273 if (acpi_dbgr & ACPI_DBGR_TABLES) 274 acpi_osd_debugger(); 275 #endif 276 277 rv = AcpiLoadTables(); 278 if (ACPI_FAILURE(rv)) { 279 printf("ACPI: unable to load tables: %s\n", 280 AcpiFormatException(rv)); 281 AcpiTerminate(); 282 return 0; 283 } 284 285 rsdt = acpi_map_rsdt(); 286 if (rsdt == NULL) { 287 printf("ACPI: unable to map RSDT\n"); 288 AcpiTerminate(); 289 return 0; 290 } 291 292 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 293 printf("ACPI: BIOS implementation in listed as broken:\n"); 294 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 295 "AslId <%4.4s,%08x>\n", 296 rsdt->OemId, rsdt->OemTableId, 297 rsdt->OemRevision, 298 rsdt->AslCompilerId, 299 rsdt->AslCompilerRevision); 300 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 301 acpi_unmap_rsdt(rsdt); 302 AcpiTerminate(); 303 return 0; 304 } 305 306 acpi_unmap_rsdt(rsdt); 307 308 #if notyet 309 /* Install the default address space handlers. */ 310 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 311 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 312 if (ACPI_FAILURE(rv)) { 313 printf("ACPI: unable to initialize SystemMemory handler: %s\n", 314 AcpiFormatException(rv)); 315 AcpiTerminate(); 316 return 0; 317 } 318 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 319 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 320 if (ACPI_FAILURE(rv)) { 321 printf("ACPI: unable to initialize SystemIO handler: %s\n", 322 AcpiFormatException(rv)); 323 AcpiTerminate(); 324 return 0; 325 } 326 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 327 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 328 if (ACPI_FAILURE(rv)) { 329 printf("ACPI: unable to initialize PciConfig handler: %s\n", 330 AcpiFormatException(rv)); 331 AcpiTerminate(); 332 return 0; 333 } 334 #endif 335 336 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 337 if (ACPI_FAILURE(rv)) { 338 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 339 AcpiTerminate(); 340 return 0; 341 } 342 343 /* 344 * Looks like we have ACPI! 345 */ 346 347 return 1; 348 } 349 350 static int 351 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 352 { 353 struct cfattach *ca; 354 355 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 356 return (ca == &acpi_ca); 357 } 358 359 int 360 acpi_check(device_t parent, const char *ifattr) 361 { 362 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 363 } 364 365 ACPI_PHYSICAL_ADDRESS 366 acpi_OsGetRootPointer(void) 367 { 368 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 369 370 /* 371 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 372 * 373 * IA-64: Use the EFI. 374 * 375 * We let MD code handle this since there are multiple 376 * ways to do it. 377 */ 378 379 PhysicalAddress = acpi_md_OsGetRootPointer(); 380 381 if (acpi_root_pointer == 0) 382 acpi_root_pointer = PhysicalAddress; 383 384 return PhysicalAddress; 385 } 386 387 /* 388 * acpi_match: 389 * 390 * Autoconfiguration `match' routine. 391 */ 392 static int 393 acpi_match(device_t parent, cfdata_t match, void *aux) 394 { 395 /* 396 * XXX Check other locators? Hard to know -- machine 397 * dependent code has already checked for the presence 398 * of ACPI by calling acpi_probe(), so I suppose we 399 * don't really have to do anything else. 400 */ 401 return 1; 402 } 403 404 /* Remove references to child devices. 405 * 406 * XXX Need to reclaim any resources? 407 */ 408 static void 409 acpi_childdet(device_t self, device_t child) 410 { 411 struct acpi_softc *sc = device_private(self); 412 struct acpi_devnode *ad; 413 414 if (sc->sc_apmbus == child) 415 sc->sc_apmbus = NULL; 416 417 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 418 419 if (ad->ad_device == child) 420 ad->ad_device = NULL; 421 } 422 } 423 424 /* 425 * acpi_attach: 426 * 427 * Autoconfiguration `attach' routine. Finish initializing 428 * ACPICA (some initialization was done in acpi_probe(), 429 * which was required to check for the presence of ACPI), 430 * and enable the ACPI subsystem. 431 */ 432 static void 433 acpi_attach(device_t parent, device_t self, void *aux) 434 { 435 struct acpi_softc *sc = device_private(self); 436 struct acpibus_attach_args *aa = aux; 437 ACPI_STATUS rv; 438 ACPI_TABLE_HEADER *rsdt; 439 440 aprint_naive("\n"); 441 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 442 443 if (acpi_softc != NULL) 444 panic("acpi_attach: ACPI has already been attached"); 445 446 sysmon_power_settype("acpi"); 447 448 rsdt = acpi_map_rsdt(); 449 if (rsdt) { 450 aprint_verbose_dev( 451 self, 452 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 453 rsdt->OemId, rsdt->OemTableId, 454 rsdt->OemRevision, 455 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 456 } else 457 aprint_error_dev(self, "X/RSDT: Not found\n"); 458 459 acpi_unmap_rsdt(rsdt); 460 461 sc->sc_dev = self; 462 sc->sc_quirks = acpi_find_quirks(); 463 464 sc->sc_iot = aa->aa_iot; 465 sc->sc_memt = aa->aa_memt; 466 sc->sc_pc = aa->aa_pc; 467 sc->sc_pciflags = aa->aa_pciflags; 468 sc->sc_ic = aa->aa_ic; 469 470 SIMPLEQ_INIT(&sc->sc_devnodes); 471 472 acpi_softc = sc; 473 474 /* 475 * Register null power management handler. 476 */ 477 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 478 aprint_error_dev(self, "couldn't establish power handler\n"); 479 480 /* 481 * Bring ACPI on-line. 482 */ 483 #ifdef ACPI_DEBUGGER 484 if (acpi_dbgr & ACPI_DBGR_ENABLE) 485 acpi_osd_debugger(); 486 #endif 487 488 #define ACPI_ENABLE_PHASE1 \ 489 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 490 #define ACPI_ENABLE_PHASE2 \ 491 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 492 ACPI_NO_ADDRESS_SPACE_INIT) 493 494 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 495 if (ACPI_FAILURE(rv)) { 496 aprint_error_dev(self, "unable to enable ACPI: %s\n", 497 AcpiFormatException(rv)); 498 return; 499 } 500 501 acpi_md_callback(); 502 503 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 504 if (ACPI_FAILURE(rv)) { 505 aprint_error_dev(self, "unable to enable ACPI: %s\n", 506 AcpiFormatException(rv)); 507 return; 508 } 509 510 /* Early EC handler initialization if ECDT table is available. */ 511 config_found_ia(self, "acpiecdtbus", aa, NULL); 512 513 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 514 if (ACPI_FAILURE(rv)) { 515 aprint_error_dev(self, 516 "unable to initialize ACPI objects: %s\n", 517 AcpiFormatException(rv)); 518 return; 519 } 520 acpi_active = 1; 521 522 /* Our current state is "awake". */ 523 sc->sc_sleepstate = ACPI_STATE_S0; 524 525 /* Show SCI interrupt. */ 526 aprint_verbose_dev(self, "SCI interrupting at int %u\n", 527 AcpiGbl_FADT.SciInterrupt); 528 529 /* 530 * Check for fixed-hardware features. 531 */ 532 acpi_enable_fixed_events(sc); 533 acpitimer_init(); 534 535 /* 536 * Scan the namespace and build our device tree. 537 */ 538 #ifdef ACPI_DEBUGGER 539 if (acpi_dbgr & ACPI_DBGR_PROBE) 540 acpi_osd_debugger(); 541 #endif 542 acpi_build_tree(sc); 543 544 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 545 "%s%s%s%s%s%s", 546 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 547 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 548 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 549 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 550 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 551 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 552 553 #ifdef ACPI_DEBUGGER 554 if (acpi_dbgr & ACPI_DBGR_RUNNING) 555 acpi_osd_debugger(); 556 #endif 557 558 #ifdef ACPI_DEBUG 559 acpi_debug_init(); 560 #endif 561 } 562 563 static int 564 acpi_detach(device_t self, int flags) 565 { 566 int rc; 567 568 #ifdef ACPI_DEBUGGER 569 if (acpi_dbgr & ACPI_DBGR_RUNNING) 570 acpi_osd_debugger(); 571 #endif 572 573 if ((rc = config_detach_children(self, flags)) != 0) 574 return rc; 575 576 #ifdef ACPI_DEBUGGER 577 if (acpi_dbgr & ACPI_DBGR_PROBE) 578 acpi_osd_debugger(); 579 #endif 580 581 if ((rc = acpitimer_detach()) != 0) 582 return rc; 583 584 #if 0 585 /* 586 * Bring ACPI on-line. 587 */ 588 #ifdef ACPI_DEBUGGER 589 if (acpi_dbgr & ACPI_DBGR_ENABLE) 590 acpi_osd_debugger(); 591 #endif 592 593 #define ACPI_ENABLE_PHASE1 \ 594 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 595 #define ACPI_ENABLE_PHASE2 \ 596 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 597 ACPI_NO_ADDRESS_SPACE_INIT) 598 599 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 600 if (ACPI_FAILURE(rv)) { 601 aprint_error_dev(self, "unable to enable ACPI: %s\n", 602 AcpiFormatException(rv)); 603 return; 604 } 605 606 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 607 if (ACPI_FAILURE(rv)) { 608 aprint_error_dev(self, "unable to enable ACPI: %s\n", 609 AcpiFormatException(rv)); 610 return; 611 } 612 613 /* Early EC handler initialization if ECDT table is available. */ 614 config_found_ia(self, "acpiecdtbus", aa, NULL); 615 616 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 617 if (ACPI_FAILURE(rv)) { 618 aprint_error_dev(self, 619 "unable to initialize ACPI objects: %s\n", 620 AcpiFormatException(rv)); 621 return; 622 } 623 acpi_active = 1; 624 625 acpi_enable_fixed_events(sc); 626 #endif 627 628 pmf_device_deregister(self); 629 630 #if 0 631 sysmon_power_settype("acpi"); 632 #endif 633 acpi_softc = NULL; 634 635 return 0; 636 } 637 638 static bool 639 acpi_suspend(device_t dv, const pmf_qual_t *qual) 640 { 641 acpi_suspended = 1; 642 return true; 643 } 644 645 static bool 646 acpi_resume(device_t dv, const pmf_qual_t *qual) 647 { 648 acpi_suspended = 0; 649 return true; 650 } 651 652 #if 0 653 /* 654 * acpi_disable: 655 * 656 * Disable ACPI. 657 */ 658 static ACPI_STATUS 659 acpi_disable(struct acpi_softc *sc) 660 { 661 ACPI_STATUS rv = AE_OK; 662 663 if (acpi_active) { 664 rv = AcpiDisable(); 665 if (ACPI_SUCCESS(rv)) 666 acpi_active = 0; 667 } 668 return rv; 669 } 670 #endif 671 672 /* 673 * acpi_build_tree: 674 * 675 * Scan relevant portions of the ACPI namespace and attach 676 * child devices. 677 */ 678 static void 679 acpi_build_tree(struct acpi_softc *sc) 680 { 681 static const char *scopes[] = { 682 "\\_PR_", "\\_SB_", "\\_SI_", "\\_TZ_", NULL 683 }; 684 685 ACPI_HANDLE parent; 686 ACPI_STATUS rv; 687 int i; 688 689 /* 690 * Scan the namespace and build our device tree. 691 */ 692 for (i = 0; scopes[i] != NULL; i++) { 693 694 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], &parent); 695 696 if (ACPI_SUCCESS(rv)) 697 (void)AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 698 acpi_make_devnode, NULL, sc, NULL); 699 } 700 701 acpi_rescan1(sc, NULL, NULL); 702 acpi_rescan_capabilities(sc); 703 704 acpi_pcidev_scan(sc); 705 } 706 707 static int 708 acpi_rescan(device_t self, const char *ifattr, const int *locators) 709 { 710 struct acpi_softc *sc = device_private(self); 711 712 acpi_rescan1(sc, ifattr, locators); 713 return 0; 714 } 715 716 static void 717 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 718 { 719 if (ifattr_match(ifattr, "acpinodebus")) 720 acpi_rescan_nodes(sc); 721 722 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 723 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 724 NULL); 725 } 726 } 727 728 static void 729 acpi_rescan_nodes(struct acpi_softc *sc) 730 { 731 struct acpi_attach_args aa; 732 struct acpi_devnode *ad; 733 734 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 735 736 if (ad->ad_device != NULL) 737 continue; 738 739 aa.aa_node = ad; 740 aa.aa_iot = sc->sc_iot; 741 aa.aa_memt = sc->sc_memt; 742 aa.aa_pc = sc->sc_pc; 743 aa.aa_pciflags = sc->sc_pciflags; 744 aa.aa_ic = sc->sc_ic; 745 746 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 747 /* 748 * XXX We only attach devices which are: 749 * 750 * - present 751 * - enabled 752 * - functioning properly 753 * 754 * However, if enabled, it's decoding resources, 755 * so we should claim them, if possible. 756 * Requires changes to bus_space(9). 757 */ 758 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 759 ACPI_VALID_STA && 760 (ad->ad_devinfo->CurrentStatus & 761 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 762 ACPI_STA_DEV_OK)) != 763 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 764 ACPI_STA_DEV_OK)) 765 continue; 766 } 767 768 /* 769 * XXX Same problem as above... 770 * 771 * Do this check only for devices, as e.g. 772 * a Thermal Zone doesn't have a HID. 773 */ 774 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 775 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 776 continue; 777 778 /* 779 * Handled internally. 780 */ 781 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 782 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 783 continue; 784 785 /* 786 * Skip ignored HIDs. 787 */ 788 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 789 continue; 790 791 ad->ad_device = config_found_ia(sc->sc_dev, 792 "acpinodebus", &aa, acpi_print); 793 } 794 } 795 796 #define ACPI_STA_DEV_VALID \ 797 (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED | ACPI_STA_DEV_OK) 798 799 /* 800 * acpi_rescan_capabilities: 801 * 802 * Scan device capabilities. 803 */ 804 static void 805 acpi_rescan_capabilities(struct acpi_softc *sc) 806 { 807 struct acpi_devnode *ad; 808 ACPI_DEVICE_INFO *di; 809 ACPI_HANDLE tmp; 810 ACPI_STATUS rv; 811 812 SIMPLEQ_FOREACH(ad, &sc->sc_devnodes, ad_list) { 813 814 di = ad->ad_devinfo; 815 816 if (di->Type != ACPI_TYPE_DEVICE) 817 continue; 818 819 if ((di->Valid & ACPI_VALID_STA) != 0 && 820 (di->CurrentStatus & ACPI_STA_DEV_VALID) != 821 ACPI_STA_DEV_VALID) 822 continue; 823 824 /* 825 * Scan power resource capabilities. 826 */ 827 rv = AcpiGetHandle(ad->ad_handle, "_PR0", &tmp); 828 829 if (ACPI_FAILURE(rv)) 830 rv = AcpiGetHandle(ad->ad_handle, "_PSC", &tmp); 831 832 if (ACPI_SUCCESS(rv)) 833 ad->ad_flags |= ACPI_DEVICE_POWER; 834 835 /* 836 * Scan wake-up capabilities. 837 */ 838 rv = AcpiGetHandle(ad->ad_handle, "_PRW", &tmp); 839 840 if (ACPI_SUCCESS(rv)) { 841 ad->ad_flags |= ACPI_DEVICE_WAKEUP; 842 acpi_wakedev_add(ad); 843 } 844 845 if (ad->ad_flags != 0) { 846 aprint_debug_dev(sc->sc_dev, "%-5s ", ad->ad_name); 847 848 if ((ad->ad_flags & ACPI_DEVICE_POWER) != 0) 849 aprint_debug("power "); 850 851 if ((ad->ad_flags & ACPI_DEVICE_WAKEUP) != 0) 852 aprint_debug("wake-up "); 853 854 aprint_debug("\n"); 855 } 856 } 857 } 858 859 #undef ACPI_STA_DEV_VALID 860 861 /* 862 * acpi_make_devnode: 863 * 864 * Make an ACPI devnode. 865 */ 866 static ACPI_STATUS 867 acpi_make_devnode(ACPI_HANDLE handle, uint32_t level, 868 void *context, void **status) 869 { 870 struct acpi_softc *sc = context; 871 struct acpi_devnode *ad; 872 ACPI_DEVICE_INFO *devinfo; 873 ACPI_OBJECT_TYPE type; 874 ACPI_NAME_UNION *anu; 875 ACPI_STATUS rv; 876 int clear, i; 877 878 rv = AcpiGetObjectInfo(handle, &devinfo); 879 880 if (ACPI_FAILURE(rv)) 881 return AE_OK; /* Do not terminate the walk. */ 882 883 type = devinfo->Type; 884 885 switch (type) { 886 887 case ACPI_TYPE_DEVICE: 888 889 #ifdef ACPI_ACTIVATE_DEV 890 acpi_activate_device(handle, &devinfo); 891 #endif 892 893 case ACPI_TYPE_PROCESSOR: 894 case ACPI_TYPE_THERMAL: 895 case ACPI_TYPE_POWER: 896 897 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT | M_ZERO); 898 899 if (ad == NULL) 900 return AE_NO_MEMORY; 901 902 ad->ad_parent = sc->sc_dev; 903 ad->ad_devinfo = devinfo; 904 ad->ad_handle = handle; 905 ad->ad_type = type; 906 907 anu = (ACPI_NAME_UNION *)&devinfo->Name; 908 ad->ad_name[4] = '\0'; 909 910 for (i = 3, clear = 0; i >= 0; i--) { 911 912 if (clear == 0 && anu->Ascii[i] == '_') 913 ad->ad_name[i] = '\0'; 914 else { 915 ad->ad_name[i] = anu->Ascii[i]; 916 clear = 1; 917 } 918 } 919 920 if (ad->ad_name[0] == '\0') 921 ad->ad_name[0] = '_'; 922 923 SIMPLEQ_INSERT_TAIL(&sc->sc_devnodes, ad, ad_list); 924 925 #ifdef ACPIVERBOSE 926 927 if (type != ACPI_TYPE_DEVICE) 928 return AE_OK; 929 930 aprint_normal_dev(sc->sc_dev, "%-5s ", ad->ad_name); 931 932 aprint_normal("HID %-10s ", 933 ((devinfo->Valid & ACPI_VALID_HID) != 0) ? 934 devinfo->HardwareId.String: "-"); 935 936 aprint_normal("UID %-4s ", 937 ((devinfo->Valid & ACPI_VALID_UID) != 0) ? 938 devinfo->UniqueId.String : "-"); 939 940 if ((devinfo->Valid & ACPI_VALID_STA) != 0) 941 aprint_normal("STA 0x%08X ", devinfo->CurrentStatus); 942 else 943 aprint_normal("STA %10s ", "-"); 944 945 if ((devinfo->Valid & ACPI_VALID_ADR) != 0) 946 aprint_normal("ADR 0x%016" PRIX64"", 947 devinfo->Address); 948 949 aprint_normal("\n"); 950 #endif 951 } 952 953 return AE_OK; 954 } 955 956 /* 957 * acpi_print: 958 * 959 * Autoconfiguration print routine for ACPI node bus. 960 */ 961 static int 962 acpi_print(void *aux, const char *pnp) 963 { 964 struct acpi_attach_args *aa = aux; 965 ACPI_STATUS rv; 966 967 if (pnp) { 968 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 969 char *pnpstr = 970 aa->aa_node->ad_devinfo->HardwareId.String; 971 ACPI_BUFFER buf; 972 973 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 974 pnpstr); 975 976 rv = acpi_eval_struct(aa->aa_node->ad_handle, 977 "_STR", &buf); 978 if (ACPI_SUCCESS(rv)) { 979 ACPI_OBJECT *obj = buf.Pointer; 980 switch (obj->Type) { 981 case ACPI_TYPE_STRING: 982 aprint_normal("[%s] ", obj->String.Pointer); 983 break; 984 case ACPI_TYPE_BUFFER: 985 aprint_normal("buffer %p ", obj->Buffer.Pointer); 986 break; 987 default: 988 aprint_normal("type %u ",obj->Type); 989 break; 990 } 991 ACPI_FREE(buf.Pointer); 992 } 993 #ifdef ACPIVERBOSE 994 else { 995 int i; 996 997 for (i = 0; i < __arraycount(acpi_knowndevs); 998 i++) { 999 if (strcmp(acpi_knowndevs[i].pnp, 1000 pnpstr) == 0) { 1001 aprint_normal("[%s] ", 1002 acpi_knowndevs[i].str); 1003 } 1004 } 1005 } 1006 1007 #endif 1008 aprint_normal("at %s", pnp); 1009 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 1010 aprint_normal("%s (ACPI Object Type '%s' " 1011 "[0x%02x]) ", aa->aa_node->ad_name, 1012 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 1013 aa->aa_node->ad_devinfo->Type); 1014 aprint_normal("at %s", pnp); 1015 } else 1016 return 0; 1017 } else { 1018 aprint_normal(" (%s", aa->aa_node->ad_name); 1019 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1020 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1021 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1022 const char *uid; 1023 1024 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1025 if (uid[0] == '\0') 1026 uid = "<null>"; 1027 aprint_normal("-%s", uid); 1028 } 1029 } 1030 aprint_normal(")"); 1031 } 1032 1033 return UNCONF; 1034 } 1035 1036 /***************************************************************************** 1037 * ACPI fixed-hardware feature handlers 1038 *****************************************************************************/ 1039 1040 static UINT32 acpi_fixed_button_handler(void *); 1041 static void acpi_fixed_button_pressed(void *); 1042 1043 /* 1044 * acpi_enable_fixed_events: 1045 * 1046 * Enable any fixed-hardware feature handlers. 1047 */ 1048 static void 1049 acpi_enable_fixed_events(struct acpi_softc *sc) 1050 { 1051 static int beenhere; 1052 ACPI_STATUS rv; 1053 1054 KASSERT(beenhere == 0); 1055 beenhere = 1; 1056 1057 /* 1058 * Check for fixed-hardware buttons. 1059 */ 1060 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1061 aprint_verbose_dev(sc->sc_dev, 1062 "fixed-feature power button present\n"); 1063 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1064 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1065 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1066 aprint_error_dev(sc->sc_dev, 1067 "unable to register fixed power " 1068 "button with sysmon\n"); 1069 } else { 1070 rv = AcpiInstallFixedEventHandler( 1071 ACPI_EVENT_POWER_BUTTON, 1072 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1073 if (ACPI_FAILURE(rv)) { 1074 aprint_error_dev(sc->sc_dev, 1075 "unable to install handler " 1076 "for fixed power button: %s\n", 1077 AcpiFormatException(rv)); 1078 } 1079 } 1080 } 1081 1082 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1083 aprint_verbose_dev(sc->sc_dev, 1084 "fixed-feature sleep button present\n"); 1085 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1086 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1087 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1088 aprint_error_dev(sc->sc_dev, 1089 "unable to register fixed sleep " 1090 "button with sysmon\n"); 1091 } else { 1092 rv = AcpiInstallFixedEventHandler( 1093 ACPI_EVENT_SLEEP_BUTTON, 1094 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1095 if (ACPI_FAILURE(rv)) { 1096 aprint_error_dev(sc->sc_dev, 1097 "unable to install handler " 1098 "for fixed sleep button: %s\n", 1099 AcpiFormatException(rv)); 1100 } 1101 } 1102 } 1103 } 1104 1105 /* 1106 * acpi_fixed_button_handler: 1107 * 1108 * Event handler for the fixed buttons. 1109 */ 1110 static UINT32 1111 acpi_fixed_button_handler(void *context) 1112 { 1113 static const int handler = OSL_NOTIFY_HANDLER; 1114 struct sysmon_pswitch *smpsw = context; 1115 1116 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s\n", __func__)); 1117 1118 (void)AcpiOsExecute(handler, acpi_fixed_button_pressed, smpsw); 1119 1120 return ACPI_INTERRUPT_HANDLED; 1121 } 1122 1123 /* 1124 * acpi_fixed_button_pressed: 1125 * 1126 * Deal with a fixed button being pressed. 1127 */ 1128 static void 1129 acpi_fixed_button_pressed(void *context) 1130 { 1131 struct sysmon_pswitch *smpsw = context; 1132 1133 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: %s fixed button pressed\n", 1134 __func__, smpsw->smpsw_name)); 1135 1136 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1137 } 1138 1139 /***************************************************************************** 1140 * ACPI utility routines. 1141 *****************************************************************************/ 1142 1143 /* 1144 * acpi_eval_integer: 1145 * 1146 * Evaluate an integer object. 1147 */ 1148 ACPI_STATUS 1149 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1150 { 1151 ACPI_STATUS rv; 1152 ACPI_BUFFER buf; 1153 ACPI_OBJECT param; 1154 1155 if (handle == NULL) 1156 handle = ACPI_ROOT_OBJECT; 1157 1158 buf.Pointer = ¶m; 1159 buf.Length = sizeof(param); 1160 1161 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, 1162 ACPI_TYPE_INTEGER); 1163 if (ACPI_SUCCESS(rv)) 1164 *valp = param.Integer.Value; 1165 1166 return rv; 1167 } 1168 1169 /* 1170 * acpi_eval_set_integer: 1171 * 1172 * Evaluate an integer object with a single integer input parameter. 1173 */ 1174 ACPI_STATUS 1175 acpi_eval_set_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER arg) 1176 { 1177 ACPI_OBJECT param_arg; 1178 ACPI_OBJECT_LIST param_args; 1179 1180 if (handle == NULL) 1181 handle = ACPI_ROOT_OBJECT; 1182 1183 param_arg.Type = ACPI_TYPE_INTEGER; 1184 param_arg.Integer.Value = arg; 1185 1186 param_args.Count = 1; 1187 param_args.Pointer = ¶m_arg; 1188 1189 return AcpiEvaluateObject(handle, path, ¶m_args, NULL); 1190 } 1191 1192 /* 1193 * acpi_eval_string: 1194 * 1195 * Evaluate a (Unicode) string object. 1196 */ 1197 ACPI_STATUS 1198 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1199 { 1200 ACPI_OBJECT *obj; 1201 ACPI_BUFFER buf; 1202 ACPI_STATUS rv; 1203 1204 rv = acpi_eval_struct(handle, path, &buf); 1205 1206 if (ACPI_FAILURE(rv)) 1207 return rv; 1208 1209 obj = buf.Pointer; 1210 1211 if (obj->Type != ACPI_TYPE_STRING) { 1212 rv = AE_TYPE; 1213 goto out; 1214 } 1215 1216 if (obj->String.Length == 0) { 1217 rv = AE_BAD_DATA; 1218 goto out; 1219 } 1220 1221 *stringp = ACPI_ALLOCATE(obj->String.Length + 1); 1222 1223 if (*stringp == NULL) { 1224 rv = AE_NO_MEMORY; 1225 goto out; 1226 } 1227 1228 (void)memcpy(*stringp, obj->String.Pointer, obj->String.Length); 1229 1230 (*stringp)[obj->String.Length] = '\0'; 1231 1232 out: 1233 ACPI_FREE(buf.Pointer); 1234 1235 return rv; 1236 } 1237 1238 /* 1239 * acpi_eval_struct: 1240 * 1241 * Evaluate a more complex structure. 1242 * Caller must free buf.Pointer by ACPI_FREE(). 1243 */ 1244 ACPI_STATUS 1245 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1246 { 1247 ACPI_STATUS rv; 1248 1249 if (handle == NULL) 1250 handle = ACPI_ROOT_OBJECT; 1251 1252 bufp->Pointer = NULL; 1253 bufp->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1254 1255 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1256 1257 return rv; 1258 } 1259 1260 /* 1261 * acpi_eval_reference_handle: 1262 * 1263 * Evaluate a reference handle from an element in a package. 1264 */ 1265 ACPI_STATUS 1266 acpi_eval_reference_handle(ACPI_OBJECT *elm, ACPI_HANDLE *handle) 1267 { 1268 1269 if (elm == NULL || handle == NULL) 1270 return AE_BAD_PARAMETER; 1271 1272 switch (elm->Type) { 1273 1274 case ACPI_TYPE_ANY: 1275 case ACPI_TYPE_LOCAL_REFERENCE: 1276 1277 if (elm->Reference.Handle == NULL) 1278 return AE_NULL_ENTRY; 1279 1280 *handle = elm->Reference.Handle; 1281 1282 return AE_OK; 1283 1284 case ACPI_TYPE_STRING: 1285 return AcpiGetHandle(NULL, elm->String.Pointer, handle); 1286 1287 default: 1288 return AE_TYPE; 1289 } 1290 } 1291 1292 /* 1293 * acpi_foreach_package_object: 1294 * 1295 * Iterate over all objects in a package, and pass them all 1296 * to a function. If the called function returns non AE_OK, the 1297 * iteration is stopped and that value is returned. 1298 */ 1299 ACPI_STATUS 1300 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1301 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1302 void *arg) 1303 { 1304 ACPI_STATUS rv = AE_OK; 1305 int i; 1306 1307 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1308 return AE_BAD_PARAMETER; 1309 1310 for (i = 0; i < pkg->Package.Count; i++) { 1311 rv = (*func)(&pkg->Package.Elements[i], arg); 1312 if (ACPI_FAILURE(rv)) 1313 break; 1314 } 1315 1316 return rv; 1317 } 1318 1319 /* 1320 * acpi_name: 1321 * 1322 * Return a complete pathname from a handle. 1323 * 1324 * Note that the function uses static data storage; 1325 * if the data is needed for future use, it should be 1326 * copied before any subsequent calls overwrite it. 1327 */ 1328 const char * 1329 acpi_name(ACPI_HANDLE handle) 1330 { 1331 static char buffer[80]; 1332 ACPI_BUFFER buf; 1333 ACPI_STATUS rv; 1334 1335 buf.Length = sizeof(buffer); 1336 buf.Pointer = buffer; 1337 1338 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1339 if (ACPI_FAILURE(rv)) 1340 return "(unknown acpi path)"; 1341 return buffer; 1342 } 1343 1344 /* 1345 * acpi_get: 1346 * 1347 * Fetch data info the specified (empty) ACPI buffer. 1348 * Caller must free buf.Pointer by ACPI_FREE(). 1349 */ 1350 ACPI_STATUS 1351 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1352 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1353 { 1354 buf->Pointer = NULL; 1355 buf->Length = ACPI_ALLOCATE_LOCAL_BUFFER; 1356 1357 return (*getit)(handle, buf); 1358 } 1359 1360 1361 /* 1362 * acpi_match_hid 1363 * 1364 * Match given ids against _HID and _CIDs. 1365 */ 1366 int 1367 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1368 { 1369 int i; 1370 1371 while (*ids) { 1372 if (ad->Valid & ACPI_VALID_HID) { 1373 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1374 return 1; 1375 } 1376 1377 if (ad->Valid & ACPI_VALID_CID) { 1378 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1379 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1380 return 1; 1381 } 1382 } 1383 ids++; 1384 } 1385 1386 return 0; 1387 } 1388 1389 /* 1390 * acpi_wake_gpe_helper 1391 * 1392 * Set/unset GPE as both Runtime and Wake. 1393 */ 1394 static void 1395 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1396 { 1397 ACPI_OBJECT *elm, *obj; 1398 ACPI_INTEGER val; 1399 ACPI_BUFFER buf; 1400 ACPI_STATUS rv; 1401 1402 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1403 1404 if (ACPI_FAILURE(rv)) 1405 return; 1406 1407 obj = buf.Pointer; 1408 1409 if (obj->Type != ACPI_TYPE_PACKAGE || obj->Package.Count < 2) 1410 goto out; 1411 1412 /* 1413 * As noted in ACPI 3.0 (section 7.2.10), the _PRW object is 1414 * a package in which the first element is either an integer 1415 * or again a package. In the latter case the package inside 1416 * the package element has two elements, a reference handle 1417 * and the GPE number. 1418 */ 1419 elm = &obj->Package.Elements[0]; 1420 1421 switch (elm->Type) { 1422 1423 case ACPI_TYPE_INTEGER: 1424 val = elm->Integer.Value; 1425 break; 1426 1427 case ACPI_TYPE_PACKAGE: 1428 1429 if (elm->Package.Count < 2) 1430 goto out; 1431 1432 if (elm->Package.Elements[0].Type != ACPI_TYPE_LOCAL_REFERENCE) 1433 goto out; 1434 1435 if (elm->Package.Elements[1].Type != ACPI_TYPE_INTEGER) 1436 goto out; 1437 1438 val = elm->Package.Elements[1].Integer.Value; 1439 break; 1440 1441 default: 1442 goto out; 1443 } 1444 1445 if (enable) { 1446 (void)AcpiSetGpeType(NULL, val, ACPI_GPE_TYPE_WAKE_RUN); 1447 (void)AcpiEnableGpe(NULL, val, ACPI_NOT_ISR); 1448 } else 1449 (void)AcpiDisableGpe(NULL, val, ACPI_NOT_ISR); 1450 1451 out: 1452 ACPI_FREE(buf.Pointer); 1453 } 1454 1455 /* 1456 * acpi_clear_wake_gpe 1457 * 1458 * Clear GPE as both Runtime and Wake. 1459 */ 1460 void 1461 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1462 { 1463 acpi_wake_gpe_helper(handle, false); 1464 } 1465 1466 /* 1467 * acpi_set_wake_gpe 1468 * 1469 * Set GPE as both Runtime and Wake. 1470 */ 1471 void 1472 acpi_set_wake_gpe(ACPI_HANDLE handle) 1473 { 1474 acpi_wake_gpe_helper(handle, true); 1475 } 1476 1477 1478 /***************************************************************************** 1479 * ACPI sleep support. 1480 *****************************************************************************/ 1481 1482 static int 1483 is_available_state(struct acpi_softc *sc, int state) 1484 { 1485 UINT8 type_a, type_b; 1486 1487 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1488 &type_a, &type_b)); 1489 } 1490 1491 /* 1492 * acpi_enter_sleep_state: 1493 * 1494 * Enter to the specified sleep state. 1495 */ 1496 1497 ACPI_STATUS 1498 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1499 { 1500 int err; 1501 ACPI_STATUS ret = AE_OK; 1502 1503 if (state == acpi_sleepstate) 1504 return AE_OK; 1505 1506 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1507 1508 switch (state) { 1509 case ACPI_STATE_S0: 1510 break; 1511 case ACPI_STATE_S1: 1512 case ACPI_STATE_S2: 1513 case ACPI_STATE_S3: 1514 case ACPI_STATE_S4: 1515 if (!is_available_state(sc, state)) { 1516 aprint_error_dev(sc->sc_dev, 1517 "ACPI S%d not available on this platform\n", state); 1518 break; 1519 } 1520 1521 acpi_wakedev_commit(sc, state); 1522 1523 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_Q_NONE)) { 1524 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1525 break; 1526 } 1527 1528 ret = AcpiEnterSleepStatePrep(state); 1529 if (ACPI_FAILURE(ret)) { 1530 aprint_error_dev(sc->sc_dev, 1531 "failed preparing to sleep (%s)\n", 1532 AcpiFormatException(ret)); 1533 break; 1534 } 1535 1536 acpi_sleepstate = state; 1537 if (state == ACPI_STATE_S1) { 1538 /* just enter the state */ 1539 acpi_md_OsDisableInterrupt(); 1540 ret = AcpiEnterSleepState((UINT8)state); 1541 if (ACPI_FAILURE(ret)) 1542 aprint_error_dev(sc->sc_dev, 1543 "failed to enter sleep state S1: %s\n", 1544 AcpiFormatException(ret)); 1545 AcpiLeaveSleepState((UINT8)state); 1546 } else { 1547 err = acpi_md_sleep(state); 1548 if (state == ACPI_STATE_S4) 1549 AcpiEnable(); 1550 pmf_system_bus_resume(PMF_Q_NONE); 1551 AcpiLeaveSleepState((UINT8)state); 1552 pmf_system_resume(PMF_Q_NONE); 1553 } 1554 1555 break; 1556 case ACPI_STATE_S5: 1557 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1558 if (ACPI_FAILURE(ret)) { 1559 aprint_error_dev(sc->sc_dev, 1560 "failed preparing to sleep (%s)\n", 1561 AcpiFormatException(ret)); 1562 break; 1563 } 1564 DELAY(1000000); 1565 acpi_sleepstate = state; 1566 acpi_md_OsDisableInterrupt(); 1567 AcpiEnterSleepState(ACPI_STATE_S5); 1568 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1569 break; 1570 } 1571 1572 acpi_sleepstate = ACPI_STATE_S0; 1573 return ret; 1574 } 1575 1576 #ifdef ACPI_ACTIVATE_DEV 1577 1578 #define ACPI_DEV_VALID (ACPI_VALID_STA | ACPI_VALID_HID) 1579 #define ACPI_DEV_STATUS (ACPI_STA_DEV_PRESENT | ACPI_STA_DEV_ENABLED) 1580 1581 static void 1582 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 1583 { 1584 ACPI_DEVICE_INFO *newdi; 1585 ACPI_STATUS rv; 1586 uint32_t old; 1587 1588 /* 1589 * If the device is valid and present, 1590 * but not enabled, try to activate it. 1591 */ 1592 if (((*di)->Valid & ACPI_DEV_VALID) != ACPI_DEV_VALID) 1593 return; 1594 1595 old = (*di)->CurrentStatus; 1596 1597 if ((old & ACPI_DEV_STATUS) != ACPI_STA_DEV_PRESENT) 1598 return; 1599 1600 rv = acpi_allocate_resources(handle); 1601 1602 if (ACPI_FAILURE(rv)) 1603 goto fail; 1604 1605 rv = AcpiGetObjectInfo(handle, &newdi); 1606 1607 if (ACPI_FAILURE(rv)) 1608 goto fail; 1609 1610 ACPI_FREE(*di); 1611 *di = newdi; 1612 1613 aprint_verbose_dev(acpi_softc->sc_dev, 1614 "%s activated, STA 0x%08X -> STA 0x%08X\n", 1615 (*di)->HardwareId.String, old, (*di)->CurrentStatus); 1616 1617 return; 1618 1619 fail: 1620 aprint_error_dev(acpi_softc->sc_dev, "failed to " 1621 "activate %s\n", (*di)->HardwareId.String); 1622 } 1623 1624 /* 1625 * XXX: This very incomplete. 1626 */ 1627 ACPI_STATUS 1628 acpi_allocate_resources(ACPI_HANDLE handle) 1629 { 1630 ACPI_BUFFER bufp, bufc, bufn; 1631 ACPI_RESOURCE *resp, *resc, *resn; 1632 ACPI_RESOURCE_IRQ *irq; 1633 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1634 ACPI_STATUS rv; 1635 uint delta; 1636 1637 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1638 if (ACPI_FAILURE(rv)) 1639 goto out; 1640 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1641 if (ACPI_FAILURE(rv)) { 1642 goto out1; 1643 } 1644 1645 bufn.Length = 1000; 1646 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1647 resp = bufp.Pointer; 1648 resc = bufc.Pointer; 1649 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1650 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1651 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1652 resp = ACPI_NEXT_RESOURCE(resp); 1653 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1654 break; 1655 /* Found identical Id */ 1656 resn->Type = resc->Type; 1657 switch (resc->Type) { 1658 case ACPI_RESOURCE_TYPE_IRQ: 1659 memcpy(&resn->Data, &resp->Data, 1660 sizeof(ACPI_RESOURCE_IRQ)); 1661 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1662 irq->Interrupts[0] = 1663 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1664 Interrupts[irq->InterruptCount-1]; 1665 irq->InterruptCount = 1; 1666 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1667 break; 1668 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1669 memcpy(&resn->Data, &resp->Data, 1670 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1671 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1672 #if 0 1673 /* 1674 * XXX not duplicating the interrupt logic above 1675 * because its not clear what it accomplishes. 1676 */ 1677 xirq->Interrupts[0] = 1678 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1679 Interrupts[irq->NumberOfInterrupts-1]; 1680 xirq->NumberOfInterrupts = 1; 1681 #endif 1682 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1683 break; 1684 case ACPI_RESOURCE_TYPE_IO: 1685 memcpy(&resn->Data, &resp->Data, 1686 sizeof(ACPI_RESOURCE_IO)); 1687 resn->Length = resp->Length; 1688 break; 1689 default: 1690 aprint_error_dev(acpi_softc->sc_dev, 1691 "%s: invalid type %u\n", __func__, resc->Type); 1692 rv = AE_BAD_DATA; 1693 goto out2; 1694 } 1695 resc = ACPI_NEXT_RESOURCE(resc); 1696 resn = ACPI_NEXT_RESOURCE(resn); 1697 resp = ACPI_NEXT_RESOURCE(resp); 1698 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1699 if (delta >= 1700 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1701 bufn.Length *= 2; 1702 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1703 M_ACPI, M_WAITOK); 1704 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1705 } 1706 } 1707 1708 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1709 aprint_error_dev(acpi_softc->sc_dev, 1710 "%s: resc not exhausted\n", __func__); 1711 rv = AE_BAD_DATA; 1712 goto out3; 1713 } 1714 1715 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1716 rv = AcpiSetCurrentResources(handle, &bufn); 1717 1718 if (ACPI_FAILURE(rv)) 1719 aprint_error_dev(acpi_softc->sc_dev, "%s: failed to set " 1720 "resources: %s\n", __func__, AcpiFormatException(rv)); 1721 1722 out3: 1723 free(bufn.Pointer, M_ACPI); 1724 out2: 1725 ACPI_FREE(bufc.Pointer); 1726 out1: 1727 ACPI_FREE(bufp.Pointer); 1728 out: 1729 return rv; 1730 } 1731 1732 #undef ACPI_DEV_VALID 1733 #undef ACPI_DEV_STATUS 1734 1735 #endif /* ACPI_ACTIVATE_DEV */ 1736 1737 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1738 { 1739 const struct sysctlnode *node; 1740 const struct sysctlnode *ssnode; 1741 1742 if (sysctl_createv(clog, 0, NULL, NULL, 1743 CTLFLAG_PERMANENT, 1744 CTLTYPE_NODE, "hw", NULL, 1745 NULL, 0, NULL, 0, 1746 CTL_HW, CTL_EOL) != 0) 1747 return; 1748 1749 if (sysctl_createv(clog, 0, NULL, &node, 1750 CTLFLAG_PERMANENT, 1751 CTLTYPE_NODE, "acpi", NULL, 1752 NULL, 0, NULL, 0, 1753 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1754 return; 1755 1756 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1757 CTLTYPE_QUAD, "root", 1758 SYSCTL_DESCR("ACPI root pointer"), 1759 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1760 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1761 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1762 CTLTYPE_STRING, "supported_states", 1763 SYSCTL_DESCR("Supported ACPI system states"), 1764 NULL, 0, acpi_supported_states, 0, 1765 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1766 1767 /* ACPI sleepstate sysctl */ 1768 if (sysctl_createv(NULL, 0, NULL, &node, 1769 CTLFLAG_PERMANENT, 1770 CTLTYPE_NODE, "machdep", NULL, 1771 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1772 return; 1773 if (sysctl_createv(NULL, 0, &node, &ssnode, 1774 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1775 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1776 CTL_EOL) != 0) 1777 return; 1778 } 1779 1780 static int 1781 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1782 { 1783 int error, t; 1784 struct sysctlnode node; 1785 1786 node = *rnode; 1787 t = acpi_sleepstate; 1788 node.sysctl_data = &t; 1789 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1790 if (error || newp == NULL) 1791 return error; 1792 1793 if (acpi_softc == NULL) 1794 return ENOSYS; 1795 1796 acpi_enter_sleep_state(acpi_softc, t); 1797 1798 return 0; 1799 } 1800 1801 static ACPI_TABLE_HEADER * 1802 acpi_map_rsdt(void) 1803 { 1804 ACPI_PHYSICAL_ADDRESS paddr; 1805 ACPI_TABLE_RSDP *rsdp; 1806 1807 paddr = AcpiOsGetRootPointer(); 1808 if (paddr == 0) { 1809 printf("ACPI: couldn't get root pointer\n"); 1810 return NULL; 1811 } 1812 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1813 if (rsdp == NULL) { 1814 printf("ACPI: couldn't map RSDP\n"); 1815 return NULL; 1816 } 1817 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1818 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1819 else 1820 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1821 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1822 1823 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1824 } 1825 1826 static void 1827 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1828 { 1829 if (rsdt == NULL) 1830 return; 1831 1832 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1833 } 1834
Indexes created Wed Sep 24 02:09:48 GMT 2025