acpi.c revision 1.128
1 /* $NetBSD: acpi.c,v 1.128 2009/08/18 16:41:02 jmcneill 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 1.128 2009/08/18 16:41:02 jmcneill Exp $"); 74 75 #include "opt_acpi.h" 76 #include "opt_pcifixup.h" 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/device.h> 81 #include <sys/malloc.h> 82 #include <sys/mutex.h> 83 #include <sys/kernel.h> 84 #include <sys/proc.h> 85 #include <sys/sysctl.h> 86 87 #include <dev/acpi/acpica.h> 88 #include <dev/acpi/acpireg.h> 89 #include <dev/acpi/acpivar.h> 90 #include <dev/acpi/acpi_osd.h> 91 #include <dev/acpi/acpi_timer.h> 92 #include <dev/acpi/acpi_wakedev.h> 93 #ifdef ACPIVERBOSE 94 #include <dev/acpi/acpidevs_data.h> 95 #endif 96 97 #if defined(ACPI_PCI_FIXUP) 98 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 99 #endif 100 101 #ifdef PCI_INTR_FIXUP_DISABLED 102 #include <dev/pci/pcidevs.h> 103 #endif 104 105 MALLOC_DECLARE(M_ACPI); 106 107 #include <machine/acpi_machdep.h> 108 109 #ifdef ACPI_DEBUGGER 110 #define ACPI_DBGR_INIT 0x01 111 #define ACPI_DBGR_TABLES 0x02 112 #define ACPI_DBGR_ENABLE 0x04 113 #define ACPI_DBGR_PROBE 0x08 114 #define ACPI_DBGR_RUNNING 0x10 115 116 static int acpi_dbgr = 0x00; 117 #endif 118 119 static ACPI_TABLE_DESC acpi_initial_tables[128]; 120 121 static int acpi_match(device_t, cfdata_t, void *); 122 static void acpi_attach(device_t, device_t, void *); 123 static void acpi_childdet(device_t, device_t); 124 static int acpi_detach(device_t, int); 125 126 static int acpi_rescan(device_t, const char *, const int *); 127 static void acpi_rescan1(struct acpi_softc *, const char *, const int *); 128 static void acpi_rescan_nodes(struct acpi_softc *); 129 130 static int acpi_print(void *aux, const char *); 131 132 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 133 134 extern struct cfdriver acpi_cd; 135 136 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 137 acpi_match, acpi_attach, acpi_detach, NULL, acpi_rescan, acpi_childdet); 138 139 /* 140 * This is a flag we set when the ACPI subsystem is active. Machine 141 * dependent code may wish to skip other steps (such as attaching 142 * subsystems that ACPI supercedes) when ACPI is active. 143 */ 144 int acpi_active; 145 int acpi_force_load; 146 int acpi_suspended = 0; 147 148 /* 149 * Pointer to the ACPI subsystem's state. There can be only 150 * one ACPI instance. 151 */ 152 struct acpi_softc *acpi_softc; 153 154 /* 155 * Locking stuff. 156 */ 157 static kmutex_t acpi_slock; 158 static int acpi_locked; 159 extern kmutex_t acpi_interrupt_list_mtx; 160 161 /* 162 * Ignored HIDs 163 */ 164 static const char * const acpi_ignored_ids[] = { 165 #if defined(i386) || defined(x86_64) 166 "PNP0000", /* AT interrupt controller is handled internally */ 167 "PNP0200", /* AT DMA controller is handled internally */ 168 "PNP0A??", /* Busses aren't enumerated with ACPI yet */ 169 "PNP0B00", /* AT RTC is handled internally */ 170 "PNP0C01", /* No "System Board" driver */ 171 "PNP0C02", /* No "PnP motherboard register resources" driver */ 172 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 173 #endif 174 #if defined(x86_64) 175 "PNP0C04", /* FPU is handled internally */ 176 #endif 177 NULL 178 }; 179 180 /* 181 * sysctl-related information 182 */ 183 184 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 185 static int acpi_sleepstate = ACPI_STATE_S0; 186 static char acpi_supported_states[3 * 6 + 1] = ""; 187 188 /* 189 * Prototypes. 190 */ 191 static void acpi_build_tree(struct acpi_softc *); 192 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 193 194 static void acpi_enable_fixed_events(struct acpi_softc *); 195 196 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 197 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 198 static int is_available_state(struct acpi_softc *, int); 199 200 static bool acpi_suspend(device_t PMF_FN_PROTO); 201 static bool acpi_resume(device_t PMF_FN_PROTO); 202 203 /* 204 * acpi_probe: 205 * 206 * Probe for ACPI support. This is called by the 207 * machine-dependent ACPI front-end. All of the 208 * actual work is done by ACPICA. 209 * 210 * NOTE: This is not an autoconfiguration interface function. 211 */ 212 int 213 acpi_probe(void) 214 { 215 static int beenhere; 216 ACPI_TABLE_HEADER *rsdt; 217 ACPI_STATUS rv; 218 219 if (beenhere != 0) 220 panic("acpi_probe: ACPI has already been probed"); 221 beenhere = 1; 222 223 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 224 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 225 acpi_locked = 0; 226 227 /* 228 * Start up ACPICA. 229 */ 230 #ifdef ACPI_DEBUGGER 231 if (acpi_dbgr & ACPI_DBGR_INIT) 232 acpi_osd_debugger(); 233 #endif 234 235 AcpiGbl_AllMethodsSerialized = FALSE; 236 AcpiGbl_EnableInterpreterSlack = TRUE; 237 238 rv = AcpiInitializeSubsystem(); 239 if (ACPI_FAILURE(rv)) { 240 printf("ACPI: unable to initialize ACPICA: %s\n", 241 AcpiFormatException(rv)); 242 return 0; 243 } 244 245 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 246 if (ACPI_FAILURE(rv)) { 247 printf("ACPI: unable to initialize ACPI tables: %s\n", 248 AcpiFormatException(rv)); 249 return 0; 250 } 251 252 rv = AcpiReallocateRootTable(); 253 if (ACPI_FAILURE(rv)) { 254 printf("ACPI: unable to reallocate root table: %s\n", 255 AcpiFormatException(rv)); 256 return 0; 257 } 258 259 #ifdef ACPI_DEBUGGER 260 if (acpi_dbgr & ACPI_DBGR_TABLES) 261 acpi_osd_debugger(); 262 #endif 263 264 rv = AcpiLoadTables(); 265 if (ACPI_FAILURE(rv)) { 266 printf("ACPI: unable to load tables: %s\n", 267 AcpiFormatException(rv)); 268 return 0; 269 } 270 271 rsdt = acpi_map_rsdt(); 272 if (rsdt == NULL) { 273 printf("ACPI: unable to map RSDT\n"); 274 return 0; 275 } 276 277 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 278 printf("ACPI: BIOS implementation in listed as broken:\n"); 279 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 280 "AslId <%4.4s,%08x>\n", 281 rsdt->OemId, rsdt->OemTableId, 282 rsdt->OemRevision, 283 rsdt->AslCompilerId, 284 rsdt->AslCompilerRevision); 285 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 286 acpi_unmap_rsdt(rsdt); 287 return 0; 288 } 289 290 acpi_unmap_rsdt(rsdt); 291 292 #if notyet 293 /* Install the default address space handlers. */ 294 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 295 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 296 if (ACPI_FAILURE(rv)) { 297 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 298 AcpiFormatException(rv)); 299 return 0; 300 } 301 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 302 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 303 if (ACPI_FAILURE(rv)) { 304 printf("ACPI: unable to initialise SystemIO handler: %s\n", 305 AcpiFormatException(rv)); 306 return 0; 307 } 308 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 309 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 310 if (ACPI_FAILURE(rv)) { 311 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 312 AcpiFormatException(rv)); 313 return 0; 314 } 315 #endif 316 317 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 318 if (ACPI_FAILURE(rv)) { 319 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 320 return 0; 321 } 322 323 /* 324 * Looks like we have ACPI! 325 */ 326 327 return 1; 328 } 329 330 static int 331 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 332 { 333 struct cfattach *ca; 334 335 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 336 return (ca == &acpi_ca); 337 } 338 339 int 340 acpi_check(device_t parent, const char *ifattr) 341 { 342 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 343 } 344 345 ACPI_PHYSICAL_ADDRESS 346 acpi_OsGetRootPointer(void) 347 { 348 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 349 350 /* 351 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 352 * 353 * IA-64: Use the EFI. 354 * 355 * We let MD code handle this since there are multiple 356 * ways to do it. 357 */ 358 359 PhysicalAddress = acpi_md_OsGetRootPointer(); 360 361 if (acpi_root_pointer == 0) 362 acpi_root_pointer = PhysicalAddress; 363 364 return PhysicalAddress; 365 } 366 367 /* 368 * acpi_match: 369 * 370 * Autoconfiguration `match' routine. 371 */ 372 static int 373 acpi_match(device_t parent, cfdata_t match, void *aux) 374 { 375 /* 376 * XXX Check other locators? Hard to know -- machine 377 * dependent code has already checked for the presence 378 * of ACPI by calling acpi_probe(), so I suppose we 379 * don't really have to do anything else. 380 */ 381 return 1; 382 } 383 384 /* Remove references to child devices. 385 * 386 * XXX Need to reclaim any resources? 387 */ 388 static void 389 acpi_childdet(device_t self, device_t child) 390 { 391 struct acpi_softc *sc = device_private(self); 392 struct acpi_scope *as; 393 struct acpi_devnode *ad; 394 395 if (sc->sc_apmbus == child) 396 sc->sc_apmbus = NULL; 397 398 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 399 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 400 if (ad->ad_device == child) 401 ad->ad_device = NULL; 402 } 403 } 404 } 405 406 /* 407 * acpi_attach: 408 * 409 * Autoconfiguration `attach' routine. Finish initializing 410 * ACPICA (some initialization was done in acpi_probe(), 411 * which was required to check for the presence of ACPI), 412 * and enable the ACPI subsystem. 413 */ 414 static void 415 acpi_attach(device_t parent, device_t self, void *aux) 416 { 417 struct acpi_softc *sc = device_private(self); 418 struct acpibus_attach_args *aa = aux; 419 ACPI_STATUS rv; 420 ACPI_TABLE_HEADER *rsdt; 421 422 aprint_naive("\n"); 423 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 424 425 if (acpi_softc != NULL) 426 panic("acpi_attach: ACPI has already been attached"); 427 428 sysmon_power_settype("acpi"); 429 430 rsdt = acpi_map_rsdt(); 431 if (rsdt) { 432 aprint_verbose_dev( 433 self, 434 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 435 rsdt->OemId, rsdt->OemTableId, 436 rsdt->OemRevision, 437 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 438 } else 439 aprint_error_dev(self, "X/RSDT: Not found\n"); 440 acpi_unmap_rsdt(rsdt); 441 442 sc->sc_dev = self; 443 sc->sc_quirks = acpi_find_quirks(); 444 445 sc->sc_iot = aa->aa_iot; 446 sc->sc_memt = aa->aa_memt; 447 sc->sc_pc = aa->aa_pc; 448 sc->sc_pciflags = aa->aa_pciflags; 449 sc->sc_ic = aa->aa_ic; 450 451 acpi_softc = sc; 452 453 /* 454 * Register null power management handler 455 */ 456 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 457 aprint_error_dev(self, "couldn't establish power handler\n"); 458 459 /* 460 * Bring ACPI on-line. 461 */ 462 #ifdef ACPI_DEBUGGER 463 if (acpi_dbgr & ACPI_DBGR_ENABLE) 464 acpi_osd_debugger(); 465 #endif 466 467 #define ACPI_ENABLE_PHASE1 \ 468 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 469 #define ACPI_ENABLE_PHASE2 \ 470 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 471 ACPI_NO_ADDRESS_SPACE_INIT) 472 473 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 474 if (ACPI_FAILURE(rv)) { 475 aprint_error_dev(self, "unable to enable ACPI: %s\n", 476 AcpiFormatException(rv)); 477 return; 478 } 479 480 acpi_md_callback(); 481 482 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 483 if (ACPI_FAILURE(rv)) { 484 aprint_error_dev(self, "unable to enable ACPI: %s\n", 485 AcpiFormatException(rv)); 486 return; 487 } 488 489 /* early EC handler initialization if ECDT table is available */ 490 config_found_ia(self, "acpiecdtbus", NULL, NULL); 491 492 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 493 if (ACPI_FAILURE(rv)) { 494 aprint_error_dev(self, 495 "unable to initialize ACPI objects: %s\n", 496 AcpiFormatException(rv)); 497 return; 498 } 499 acpi_active = 1; 500 501 /* Our current state is "awake". */ 502 sc->sc_sleepstate = ACPI_STATE_S0; 503 504 /* Show SCI interrupt. */ 505 aprint_verbose_dev(self, "SCI interrupting at int %d\n", 506 AcpiGbl_FADT.SciInterrupt); 507 508 /* 509 * Check for fixed-hardware features. 510 */ 511 acpi_enable_fixed_events(sc); 512 acpitimer_init(); 513 514 /* 515 * Scan the namespace and build our device tree. 516 */ 517 #ifdef ACPI_DEBUGGER 518 if (acpi_dbgr & ACPI_DBGR_PROBE) 519 acpi_osd_debugger(); 520 #endif 521 acpi_build_tree(sc); 522 523 snprintf(acpi_supported_states, sizeof(acpi_supported_states), 524 "%s%s%s%s%s%s", 525 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 526 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 527 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 528 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 529 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 530 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 531 532 #ifdef ACPI_DEBUGGER 533 if (acpi_dbgr & ACPI_DBGR_RUNNING) 534 acpi_osd_debugger(); 535 #endif 536 } 537 538 static int 539 acpi_detach(device_t self, int flags) 540 { 541 int rc; 542 543 #ifdef ACPI_DEBUGGER 544 if (acpi_dbgr & ACPI_DBGR_RUNNING) 545 acpi_osd_debugger(); 546 #endif 547 548 if ((rc = config_detach_children(self, flags)) != 0) 549 return rc; 550 551 #ifdef ACPI_DEBUGGER 552 if (acpi_dbgr & ACPI_DBGR_PROBE) 553 acpi_osd_debugger(); 554 #endif 555 556 if ((rc = acpitimer_detach()) != 0) 557 return rc; 558 559 #if 0 560 /* 561 * Bring ACPI on-line. 562 */ 563 #ifdef ACPI_DEBUGGER 564 if (acpi_dbgr & ACPI_DBGR_ENABLE) 565 acpi_osd_debugger(); 566 #endif 567 568 #define ACPI_ENABLE_PHASE1 \ 569 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 570 #define ACPI_ENABLE_PHASE2 \ 571 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 572 ACPI_NO_ADDRESS_SPACE_INIT) 573 574 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 575 if (ACPI_FAILURE(rv)) { 576 aprint_error_dev(self, "unable to enable ACPI: %s\n", 577 AcpiFormatException(rv)); 578 return; 579 } 580 581 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 582 if (ACPI_FAILURE(rv)) { 583 aprint_error_dev(self, "unable to enable ACPI: %s\n", 584 AcpiFormatException(rv)); 585 return; 586 } 587 588 /* early EC handler initialization if ECDT table is available */ 589 config_found_ia(self, "acpiecdtbus", NULL, NULL); 590 591 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 592 if (ACPI_FAILURE(rv)) { 593 aprint_error_dev(self, 594 "unable to initialize ACPI objects: %s\n", 595 AcpiFormatException(rv)); 596 return; 597 } 598 acpi_active = 1; 599 600 acpi_enable_fixed_events(sc); 601 #endif 602 603 pmf_device_deregister(self); 604 605 #if 0 606 sysmon_power_settype("acpi"); 607 #endif 608 acpi_softc = NULL; 609 610 return 0; 611 } 612 613 static bool 614 acpi_suspend(device_t dv PMF_FN_ARGS) 615 { 616 acpi_suspended = 1; 617 return true; 618 } 619 620 static bool 621 acpi_resume(device_t dv PMF_FN_ARGS) 622 { 623 acpi_suspended = 0; 624 return true; 625 } 626 627 #if 0 628 /* 629 * acpi_disable: 630 * 631 * Disable ACPI. 632 */ 633 static ACPI_STATUS 634 acpi_disable(struct acpi_softc *sc) 635 { 636 ACPI_STATUS rv = AE_OK; 637 638 if (acpi_active) { 639 rv = AcpiDisable(); 640 if (ACPI_SUCCESS(rv)) 641 acpi_active = 0; 642 } 643 return rv; 644 } 645 #endif 646 647 struct acpi_make_devnode_state { 648 struct acpi_softc *softc; 649 struct acpi_scope *scope; 650 }; 651 652 /* 653 * acpi_build_tree: 654 * 655 * Scan relevant portions of the ACPI namespace and attach 656 * child devices. 657 */ 658 static void 659 acpi_build_tree(struct acpi_softc *sc) 660 { 661 static const char *scopes[] = { 662 "\\_PR_", /* ACPI 1.0 processor namespace */ 663 "\\_SB_", /* system bus namespace */ 664 "\\_SI_", /* system indicator namespace */ 665 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 666 NULL, 667 }; 668 struct acpi_make_devnode_state state; 669 struct acpi_scope *as; 670 ACPI_HANDLE parent; 671 ACPI_STATUS rv; 672 int i; 673 674 TAILQ_INIT(&sc->sc_scopes); 675 676 state.softc = sc; 677 678 /* 679 * Scan the namespace and build our tree. 680 */ 681 for (i = 0; scopes[i] != NULL; i++) { 682 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 683 as->as_name = scopes[i]; 684 TAILQ_INIT(&as->as_devnodes); 685 686 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 687 688 state.scope = as; 689 690 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 691 &parent); 692 if (ACPI_SUCCESS(rv)) { 693 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 694 acpi_make_devnode, &state, NULL); 695 } 696 } 697 698 acpi_rescan1(sc, NULL, NULL); 699 700 acpi_wakedev_scan(sc); 701 } 702 703 static int 704 acpi_rescan(device_t self, const char *ifattr, const int *locators) 705 { 706 struct acpi_softc *sc = device_private(self); 707 708 acpi_rescan1(sc, ifattr, locators); 709 return 0; 710 } 711 712 /* XXX share this with sys/arch/i386/pci/elan520.c */ 713 static bool 714 ifattr_match(const char *snull, const char *t) 715 { 716 return (snull == NULL) || strcmp(snull, t) == 0; 717 } 718 719 static void 720 acpi_rescan1(struct acpi_softc *sc, const char *ifattr, const int *locators) 721 { 722 if (ifattr_match(ifattr, "acpinodebus")) 723 acpi_rescan_nodes(sc); 724 725 if (ifattr_match(ifattr, "acpiapmbus") && sc->sc_apmbus == NULL) { 726 sc->sc_apmbus = config_found_ia(sc->sc_dev, "acpiapmbus", NULL, 727 NULL); 728 } 729 } 730 731 static void 732 acpi_rescan_nodes(struct acpi_softc *sc) 733 { 734 struct acpi_scope *as; 735 736 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 737 struct acpi_devnode *ad; 738 739 /* Now, for this namespace, try to attach the devices. */ 740 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 741 struct acpi_attach_args aa; 742 743 if (ad->ad_device != NULL) 744 continue; 745 746 aa.aa_node = ad; 747 aa.aa_iot = sc->sc_iot; 748 aa.aa_memt = sc->sc_memt; 749 aa.aa_pc = sc->sc_pc; 750 aa.aa_pciflags = sc->sc_pciflags; 751 aa.aa_ic = sc->sc_ic; 752 753 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 754 /* 755 * XXX We only attach devices which are: 756 * 757 * - present 758 * - enabled 759 * - functioning properly 760 * 761 * However, if enabled, it's decoding resources, 762 * so we should claim them, if possible. 763 * Requires changes to bus_space(9). 764 */ 765 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 766 ACPI_VALID_STA && 767 (ad->ad_devinfo->CurrentStatus & 768 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 769 ACPI_STA_DEV_OK)) != 770 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 771 ACPI_STA_DEV_OK)) 772 continue; 773 } 774 775 /* 776 * XXX Same problem as above... 777 * 778 * Do this check only for devices, as e.g. 779 * a Thermal Zone doesn't have a HID. 780 */ 781 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 782 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 783 continue; 784 785 /* 786 * Handled internally 787 */ 788 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 789 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 790 continue; 791 792 /* 793 * Skip ignored HIDs 794 */ 795 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 796 continue; 797 798 ad->ad_device = config_found_ia(sc->sc_dev, 799 "acpinodebus", &aa, acpi_print); 800 } 801 } 802 } 803 804 #ifdef ACPI_ACTIVATE_DEV 805 static void 806 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 807 { 808 ACPI_STATUS rv; 809 ACPI_DEVICE_INFO *newdi; 810 811 #ifdef ACPI_DEBUG 812 aprint_normal("acpi_activate_device: %s, old status=%x\n", 813 (*di)->HardwareId.Value, (*di)->CurrentStatus); 814 #endif 815 816 rv = acpi_allocate_resources(handle); 817 if (ACPI_FAILURE(rv)) { 818 aprint_error("acpi: activate failed for %s\n", 819 (*di)->HardwareId.Value); 820 } else { 821 aprint_verbose("acpi: activated %s\n", 822 (*di)->HardwareId.Value); 823 } 824 825 (void)AcpiGetObjectInfo(handle, &newdi); 826 AcpiOsFree(*di); 827 *di = newdi; 828 829 #ifdef ACPI_DEBUG 830 aprint_normal("acpi_activate_device: %s, new status=%x\n", 831 (*di)->HardwareId.Value, (*di)->CurrentStatus); 832 #endif 833 } 834 #endif /* ACPI_ACTIVATE_DEV */ 835 836 /* 837 * acpi_make_devnode: 838 * 839 * Make an ACPI devnode. 840 */ 841 static ACPI_STATUS 842 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 843 void **status) 844 { 845 struct acpi_make_devnode_state *state = context; 846 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 847 struct acpi_softc *sc = state->softc; 848 #endif 849 struct acpi_scope *as = state->scope; 850 struct acpi_devnode *ad; 851 ACPI_OBJECT_TYPE type; 852 ACPI_DEVICE_INFO *devinfo; 853 ACPI_STATUS rv; 854 ACPI_NAME_UNION *anu; 855 int i, clear = 0; 856 857 rv = AcpiGetType(handle, &type); 858 if (ACPI_SUCCESS(rv)) { 859 rv = AcpiGetObjectInfo(handle, &devinfo); 860 if (ACPI_FAILURE(rv)) { 861 #ifdef ACPI_DEBUG 862 aprint_normal_dev(sc->sc_dev, 863 "AcpiGetObjectInfo failed: %s\n", 864 AcpiFormatException(rv)); 865 #endif 866 goto out; /* XXX why return OK */ 867 } 868 869 switch (type) { 870 case ACPI_TYPE_DEVICE: 871 #ifdef ACPI_ACTIVATE_DEV 872 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 873 (ACPI_VALID_STA|ACPI_VALID_HID) && 874 (devinfo->CurrentStatus & 875 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 876 ACPI_STA_DEV_PRESENT) 877 acpi_activate_device(handle, &devinfo); 878 879 /* FALLTHROUGH */ 880 #endif 881 882 case ACPI_TYPE_PROCESSOR: 883 case ACPI_TYPE_THERMAL: 884 case ACPI_TYPE_POWER: 885 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 886 if (ad == NULL) 887 return AE_NO_MEMORY; 888 889 ad->ad_devinfo = devinfo; 890 ad->ad_handle = handle; 891 ad->ad_level = level; 892 ad->ad_scope = as; 893 ad->ad_type = type; 894 895 anu = (ACPI_NAME_UNION *)&devinfo->Name; 896 ad->ad_name[4] = '\0'; 897 for (i = 3, clear = 0; i >= 0; i--) { 898 if (!clear && anu->Ascii[i] == '_') 899 ad->ad_name[i] = '\0'; 900 else { 901 ad->ad_name[i] = anu->Ascii[i]; 902 clear = 1; 903 } 904 } 905 if (ad->ad_name[0] == '\0') 906 ad->ad_name[0] = '_'; 907 908 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 909 910 if (type == ACPI_TYPE_DEVICE && 911 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 912 goto out; 913 914 #ifdef ACPI_EXTRA_DEBUG 915 aprint_normal_dev(sc->sc_dev, 916 "HID %s found in scope %s level %d\n", 917 ad->ad_devinfo->HardwareId.Value, 918 as->as_name, ad->ad_level); 919 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 920 aprint_normal(" UID %s\n", 921 ad->ad_devinfo->UniqueId.Value); 922 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 923 aprint_normal(" ADR 0x%016" PRIx64 "\n", 924 ad->ad_devinfo->Address); 925 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 926 aprint_normal(" STA 0x%08x\n", 927 ad->ad_devinfo->CurrentStatus); 928 #endif 929 } 930 } 931 out: 932 return AE_OK; 933 } 934 935 /* 936 * acpi_print: 937 * 938 * Autoconfiguration print routine for ACPI node bus. 939 */ 940 static int 941 acpi_print(void *aux, const char *pnp) 942 { 943 struct acpi_attach_args *aa = aux; 944 ACPI_STATUS rv; 945 946 if (pnp) { 947 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 948 char *pnpstr = 949 aa->aa_node->ad_devinfo->HardwareId.String; 950 ACPI_BUFFER buf; 951 952 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 953 pnpstr); 954 955 buf.Pointer = NULL; 956 buf.Length = ACPI_ALLOCATE_BUFFER; 957 rv = AcpiEvaluateObject(aa->aa_node->ad_handle, 958 "_STR", NULL, &buf); 959 if (ACPI_SUCCESS(rv)) { 960 ACPI_OBJECT *obj = buf.Pointer; 961 switch (obj->Type) { 962 case ACPI_TYPE_STRING: 963 aprint_normal("[%s] ", obj->String.Pointer); 964 break; 965 case ACPI_TYPE_BUFFER: 966 aprint_normal("buffer %p ", obj->Buffer.Pointer); 967 break; 968 default: 969 aprint_normal("type %d ",obj->Type); 970 break; 971 } 972 AcpiOsFree(buf.Pointer); 973 } 974 #ifdef ACPIVERBOSE 975 else { 976 int i; 977 978 for (i = 0; i < sizeof(acpi_knowndevs) / 979 sizeof(acpi_knowndevs[0]); i++) { 980 if (strcmp(acpi_knowndevs[i].pnp, 981 pnpstr) == 0) { 982 aprint_normal("[%s] ", 983 acpi_knowndevs[i].str); 984 } 985 } 986 } 987 988 #endif 989 aprint_normal("at %s", pnp); 990 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 991 aprint_normal("%s (ACPI Object Type '%s' " 992 "[0x%02x]) ", aa->aa_node->ad_name, 993 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 994 aa->aa_node->ad_devinfo->Type); 995 aprint_normal("at %s", pnp); 996 } else 997 return 0; 998 } else { 999 aprint_normal(" (%s", aa->aa_node->ad_name); 1000 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 1001 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.String); 1002 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 1003 const char *uid; 1004 1005 uid = aa->aa_node->ad_devinfo->UniqueId.String; 1006 if (uid[0] == '\0') 1007 uid = "<null>"; 1008 aprint_normal("-%s", uid); 1009 } 1010 } 1011 aprint_normal(")"); 1012 } 1013 1014 return UNCONF; 1015 } 1016 1017 /***************************************************************************** 1018 * ACPI fixed-hardware feature handlers 1019 *****************************************************************************/ 1020 1021 static UINT32 acpi_fixed_button_handler(void *); 1022 static void acpi_fixed_button_pressed(void *); 1023 1024 /* 1025 * acpi_enable_fixed_events: 1026 * 1027 * Enable any fixed-hardware feature handlers. 1028 */ 1029 static void 1030 acpi_enable_fixed_events(struct acpi_softc *sc) 1031 { 1032 static int beenhere; 1033 ACPI_STATUS rv; 1034 1035 KASSERT(beenhere == 0); 1036 beenhere = 1; 1037 1038 /* 1039 * Check for fixed-hardware buttons. 1040 */ 1041 1042 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 1043 aprint_verbose_dev(sc->sc_dev, 1044 "fixed-feature power button present\n"); 1045 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 1046 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 1047 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1048 aprint_error_dev(sc->sc_dev, 1049 "unable to register fixed power " 1050 "button with sysmon\n"); 1051 } else { 1052 rv = AcpiInstallFixedEventHandler( 1053 ACPI_EVENT_POWER_BUTTON, 1054 acpi_fixed_button_handler, &sc->sc_smpsw_power); 1055 if (ACPI_FAILURE(rv)) { 1056 aprint_error_dev(sc->sc_dev, 1057 "unable to install handler " 1058 "for fixed power button: %s\n", 1059 AcpiFormatException(rv)); 1060 } 1061 } 1062 } 1063 1064 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 1065 aprint_verbose_dev(sc->sc_dev, 1066 "fixed-feature sleep button present\n"); 1067 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 1068 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 1069 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 1070 aprint_error_dev(sc->sc_dev, 1071 "unable to register fixed sleep " 1072 "button with sysmon\n"); 1073 } else { 1074 rv = AcpiInstallFixedEventHandler( 1075 ACPI_EVENT_SLEEP_BUTTON, 1076 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 1077 if (ACPI_FAILURE(rv)) { 1078 aprint_error_dev(sc->sc_dev, 1079 "unable to install handler " 1080 "for fixed sleep button: %s\n", 1081 AcpiFormatException(rv)); 1082 } 1083 } 1084 } 1085 } 1086 1087 /* 1088 * acpi_fixed_button_handler: 1089 * 1090 * Event handler for the fixed buttons. 1091 */ 1092 static UINT32 1093 acpi_fixed_button_handler(void *context) 1094 { 1095 struct sysmon_pswitch *smpsw = context; 1096 int rv; 1097 1098 #ifdef ACPI_BUT_DEBUG 1099 printf("%s: fixed button handler\n", smpsw->smpsw_name); 1100 #endif 1101 1102 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 1103 acpi_fixed_button_pressed, smpsw); 1104 if (ACPI_FAILURE(rv)) 1105 printf("%s: WARNING: unable to queue fixed button pressed " 1106 "callback: %s\n", smpsw->smpsw_name, 1107 AcpiFormatException(rv)); 1108 1109 return ACPI_INTERRUPT_HANDLED; 1110 } 1111 1112 /* 1113 * acpi_fixed_button_pressed: 1114 * 1115 * Deal with a fixed button being pressed. 1116 */ 1117 static void 1118 acpi_fixed_button_pressed(void *context) 1119 { 1120 struct sysmon_pswitch *smpsw = context; 1121 1122 #ifdef ACPI_BUT_DEBUG 1123 printf("%s: fixed button pressed, calling sysmon\n", 1124 smpsw->smpsw_name); 1125 #endif 1126 1127 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 1128 } 1129 1130 /***************************************************************************** 1131 * ACPI utility routines. 1132 *****************************************************************************/ 1133 1134 /* 1135 * acpi_eval_integer: 1136 * 1137 * Evaluate an integer object. 1138 */ 1139 ACPI_STATUS 1140 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1141 { 1142 ACPI_STATUS rv; 1143 ACPI_BUFFER buf; 1144 ACPI_OBJECT param; 1145 1146 if (handle == NULL) 1147 handle = ACPI_ROOT_OBJECT; 1148 1149 buf.Pointer = ¶m; 1150 buf.Length = sizeof(param); 1151 1152 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 1153 if (ACPI_SUCCESS(rv)) 1154 *valp = param.Integer.Value; 1155 1156 return rv; 1157 } 1158 1159 /* 1160 * acpi_eval_string: 1161 * 1162 * Evaluate a (Unicode) string object. 1163 */ 1164 ACPI_STATUS 1165 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1166 { 1167 ACPI_STATUS rv; 1168 ACPI_BUFFER buf; 1169 1170 if (handle == NULL) 1171 handle = ACPI_ROOT_OBJECT; 1172 1173 buf.Pointer = NULL; 1174 buf.Length = ACPI_ALLOCATE_BUFFER; 1175 1176 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1177 if (ACPI_SUCCESS(rv)) { 1178 ACPI_OBJECT *param = buf.Pointer; 1179 const char *ptr = param->String.Pointer; 1180 size_t len = param->String.Length; 1181 if ((*stringp = AcpiOsAllocate(len)) == NULL) 1182 rv = AE_NO_MEMORY; 1183 else 1184 (void)memcpy(*stringp, ptr, len); 1185 AcpiOsFree(param); 1186 } 1187 1188 return rv; 1189 } 1190 1191 1192 /* 1193 * acpi_eval_struct: 1194 * 1195 * Evaluate a more complex structure. 1196 * Caller must free buf.Pointer by AcpiOsFree(). 1197 */ 1198 ACPI_STATUS 1199 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1200 { 1201 ACPI_STATUS rv; 1202 1203 if (handle == NULL) 1204 handle = ACPI_ROOT_OBJECT; 1205 1206 bufp->Pointer = NULL; 1207 bufp->Length = ACPI_ALLOCATE_BUFFER; 1208 1209 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1210 1211 return rv; 1212 } 1213 1214 /* 1215 * acpi_foreach_package_object: 1216 * 1217 * Iterate over all objects in a in a packages and pass then all 1218 * to a function. If the called function returns non AE_OK, the 1219 * iteration is stopped and that value is returned. 1220 */ 1221 1222 ACPI_STATUS 1223 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1224 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1225 void *arg) 1226 { 1227 ACPI_STATUS rv = AE_OK; 1228 int i; 1229 1230 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1231 return AE_BAD_PARAMETER; 1232 1233 for (i = 0; i < pkg->Package.Count; i++) { 1234 rv = (*func)(&pkg->Package.Elements[i], arg); 1235 if (ACPI_FAILURE(rv)) 1236 break; 1237 } 1238 1239 return rv; 1240 } 1241 1242 const char * 1243 acpi_name(ACPI_HANDLE handle) 1244 { 1245 static char buffer[80]; 1246 ACPI_BUFFER buf; 1247 ACPI_STATUS rv; 1248 1249 buf.Length = sizeof(buffer); 1250 buf.Pointer = buffer; 1251 1252 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1253 if (ACPI_FAILURE(rv)) 1254 return "(unknown acpi path)"; 1255 return buffer; 1256 } 1257 1258 /* 1259 * acpi_get: 1260 * 1261 * Fetch data info the specified (empty) ACPI buffer. 1262 * Caller must free buf.Pointer by AcpiOsFree(). 1263 */ 1264 ACPI_STATUS 1265 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1266 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1267 { 1268 buf->Pointer = NULL; 1269 buf->Length = ACPI_ALLOCATE_BUFFER; 1270 1271 return (*getit)(handle, buf); 1272 } 1273 1274 1275 /* 1276 * acpi_match_hid 1277 * 1278 * Match given ids against _HID and _CIDs 1279 */ 1280 int 1281 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1282 { 1283 int i; 1284 1285 while (*ids) { 1286 if (ad->Valid & ACPI_VALID_HID) { 1287 if (pmatch(ad->HardwareId.String, *ids, NULL) == 2) 1288 return 1; 1289 } 1290 1291 if (ad->Valid & ACPI_VALID_CID) { 1292 for (i = 0; i < ad->CompatibleIdList.Count; i++) { 1293 if (pmatch(ad->CompatibleIdList.Ids[i].String, *ids, NULL) == 2) 1294 return 1; 1295 } 1296 } 1297 ids++; 1298 } 1299 1300 return 0; 1301 } 1302 1303 /* 1304 * acpi_wake_gpe_helper 1305 * 1306 * Set/unset GPE as both Runtime and Wake 1307 */ 1308 static void 1309 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1310 { 1311 ACPI_BUFFER buf; 1312 ACPI_STATUS rv; 1313 ACPI_OBJECT *p, *elt; 1314 1315 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1316 if (ACPI_FAILURE(rv)) 1317 return; /* just ignore */ 1318 1319 p = buf.Pointer; 1320 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1321 goto out; /* just ignore */ 1322 1323 elt = p->Package.Elements; 1324 1325 /* TBD: package support */ 1326 if (enable) { 1327 AcpiSetGpeType(NULL, elt[0].Integer.Value, 1328 ACPI_GPE_TYPE_WAKE_RUN); 1329 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1330 } else 1331 AcpiDisableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1332 1333 out: 1334 AcpiOsFree(buf.Pointer); 1335 } 1336 1337 /* 1338 * acpi_clear_wake_gpe 1339 * 1340 * Clear GPE as both Runtime and Wake 1341 */ 1342 void 1343 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1344 { 1345 acpi_wake_gpe_helper(handle, false); 1346 } 1347 1348 /* 1349 * acpi_set_wake_gpe 1350 * 1351 * Set GPE as both Runtime and Wake 1352 */ 1353 void 1354 acpi_set_wake_gpe(ACPI_HANDLE handle) 1355 { 1356 acpi_wake_gpe_helper(handle, true); 1357 } 1358 1359 1360 /***************************************************************************** 1361 * ACPI sleep support. 1362 *****************************************************************************/ 1363 1364 static int 1365 is_available_state(struct acpi_softc *sc, int state) 1366 { 1367 UINT8 type_a, type_b; 1368 1369 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1370 &type_a, &type_b)); 1371 } 1372 1373 /* 1374 * acpi_enter_sleep_state: 1375 * 1376 * enter to the specified sleep state. 1377 */ 1378 1379 ACPI_STATUS 1380 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1381 { 1382 int err; 1383 ACPI_STATUS ret = AE_OK; 1384 1385 if (state == acpi_sleepstate) 1386 return AE_OK; 1387 1388 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1389 1390 switch (state) { 1391 case ACPI_STATE_S0: 1392 break; 1393 case ACPI_STATE_S1: 1394 case ACPI_STATE_S2: 1395 case ACPI_STATE_S3: 1396 case ACPI_STATE_S4: 1397 if (!is_available_state(sc, state)) { 1398 aprint_error_dev(sc->sc_dev, 1399 "ACPI S%d not available on this platform\n", state); 1400 break; 1401 } 1402 1403 acpi_wakedev_commit(sc); 1404 1405 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_F_NONE)) { 1406 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1407 break; 1408 } 1409 1410 ret = AcpiEnterSleepStatePrep(state); 1411 if (ACPI_FAILURE(ret)) { 1412 aprint_error_dev(sc->sc_dev, 1413 "failed preparing to sleep (%s)\n", 1414 AcpiFormatException(ret)); 1415 break; 1416 } 1417 1418 acpi_sleepstate = state; 1419 if (state == ACPI_STATE_S1) { 1420 /* just enter the state */ 1421 acpi_md_OsDisableInterrupt(); 1422 ret = AcpiEnterSleepState((UINT8)state); 1423 if (ACPI_FAILURE(ret)) 1424 aprint_error_dev(sc->sc_dev, 1425 "failed to enter sleep state S1: %s\n", 1426 AcpiFormatException(ret)); 1427 AcpiLeaveSleepState((UINT8)state); 1428 } else { 1429 err = acpi_md_sleep(state); 1430 if (state == ACPI_STATE_S4) 1431 AcpiEnable(); 1432 pmf_system_bus_resume(PMF_F_NONE); 1433 AcpiLeaveSleepState((UINT8)state); 1434 pmf_system_resume(PMF_F_NONE); 1435 } 1436 1437 break; 1438 case ACPI_STATE_S5: 1439 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1440 if (ACPI_FAILURE(ret)) { 1441 aprint_error_dev(sc->sc_dev, 1442 "failed preparing to sleep (%s)\n", 1443 AcpiFormatException(ret)); 1444 break; 1445 } 1446 DELAY(1000000); 1447 acpi_sleepstate = state; 1448 acpi_md_OsDisableInterrupt(); 1449 AcpiEnterSleepState(ACPI_STATE_S5); 1450 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1451 break; 1452 } 1453 1454 acpi_sleepstate = ACPI_STATE_S0; 1455 return ret; 1456 } 1457 1458 #if defined(ACPI_ACTIVATE_DEV) 1459 /* XXX This very incomplete */ 1460 ACPI_STATUS 1461 acpi_allocate_resources(ACPI_HANDLE handle) 1462 { 1463 ACPI_BUFFER bufp, bufc, bufn; 1464 ACPI_RESOURCE *resp, *resc, *resn; 1465 ACPI_RESOURCE_IRQ *irq; 1466 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1467 ACPI_STATUS rv; 1468 uint delta; 1469 1470 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1471 if (ACPI_FAILURE(rv)) 1472 goto out; 1473 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1474 if (ACPI_FAILURE(rv)) { 1475 goto out1; 1476 } 1477 1478 bufn.Length = 1000; 1479 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1480 resp = bufp.Pointer; 1481 resc = bufc.Pointer; 1482 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1483 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1484 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1485 resp = ACPI_NEXT_RESOURCE(resp); 1486 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1487 break; 1488 /* Found identical Id */ 1489 resn->Type = resc->Type; 1490 switch (resc->Type) { 1491 case ACPI_RESOURCE_TYPE_IRQ: 1492 memcpy(&resn->Data, &resp->Data, 1493 sizeof(ACPI_RESOURCE_IRQ)); 1494 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1495 irq->Interrupts[0] = 1496 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1497 Interrupts[irq->InterruptCount-1]; 1498 irq->InterruptCount = 1; 1499 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1500 break; 1501 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1502 memcpy(&resn->Data, &resp->Data, 1503 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1504 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1505 #if 0 1506 /* 1507 * XXX not duplicating the interrupt logic above 1508 * because its not clear what it accomplishes. 1509 */ 1510 xirq->Interrupts[0] = 1511 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1512 Interrupts[irq->NumberOfInterrupts-1]; 1513 xirq->NumberOfInterrupts = 1; 1514 #endif 1515 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1516 break; 1517 case ACPI_RESOURCE_TYPE_IO: 1518 memcpy(&resn->Data, &resp->Data, 1519 sizeof(ACPI_RESOURCE_IO)); 1520 resn->Length = resp->Length; 1521 break; 1522 default: 1523 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1524 rv = AE_BAD_DATA; 1525 goto out2; 1526 } 1527 resc = ACPI_NEXT_RESOURCE(resc); 1528 resn = ACPI_NEXT_RESOURCE(resn); 1529 resp = ACPI_NEXT_RESOURCE(resp); 1530 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1531 if (delta >= 1532 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1533 bufn.Length *= 2; 1534 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1535 M_ACPI, M_WAITOK); 1536 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1537 } 1538 } 1539 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1540 printf("acpi_allocate_resources: resc not exhausted\n"); 1541 rv = AE_BAD_DATA; 1542 goto out3; 1543 } 1544 1545 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1546 rv = AcpiSetCurrentResources(handle, &bufn); 1547 if (ACPI_FAILURE(rv)) { 1548 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1549 AcpiFormatException(rv)); 1550 } 1551 1552 out3: 1553 free(bufn.Pointer, M_ACPI); 1554 out2: 1555 AcpiOsFree(bufc.Pointer); 1556 out1: 1557 AcpiOsFree(bufp.Pointer); 1558 out: 1559 return rv; 1560 } 1561 #endif /* ACPI_ACTIVATE_DEV */ 1562 1563 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1564 { 1565 const struct sysctlnode *node; 1566 const struct sysctlnode *ssnode; 1567 1568 if (sysctl_createv(clog, 0, NULL, NULL, 1569 CTLFLAG_PERMANENT, 1570 CTLTYPE_NODE, "hw", NULL, 1571 NULL, 0, NULL, 0, 1572 CTL_HW, CTL_EOL) != 0) 1573 return; 1574 1575 if (sysctl_createv(clog, 0, NULL, &node, 1576 CTLFLAG_PERMANENT, 1577 CTLTYPE_NODE, "acpi", NULL, 1578 NULL, 0, NULL, 0, 1579 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1580 return; 1581 1582 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1583 CTLTYPE_QUAD, "root", 1584 SYSCTL_DESCR("ACPI root pointer"), 1585 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1586 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1587 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1588 CTLTYPE_STRING, "supported_states", 1589 SYSCTL_DESCR("Supported ACPI system states"), 1590 NULL, 0, acpi_supported_states, 0, 1591 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1592 1593 /* ACPI sleepstate sysctl */ 1594 if (sysctl_createv(NULL, 0, NULL, &node, 1595 CTLFLAG_PERMANENT, 1596 CTLTYPE_NODE, "machdep", NULL, 1597 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1598 return; 1599 if (sysctl_createv(NULL, 0, &node, &ssnode, 1600 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1601 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1602 CTL_EOL) != 0) 1603 return; 1604 } 1605 1606 static int 1607 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1608 { 1609 int error, t; 1610 struct sysctlnode node; 1611 1612 node = *rnode; 1613 t = acpi_sleepstate; 1614 node.sysctl_data = &t; 1615 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1616 if (error || newp == NULL) 1617 return error; 1618 1619 if (acpi_softc == NULL) 1620 return ENOSYS; 1621 1622 acpi_enter_sleep_state(acpi_softc, t); 1623 1624 return 0; 1625 } 1626 1627 static ACPI_TABLE_HEADER * 1628 acpi_map_rsdt(void) 1629 { 1630 ACPI_PHYSICAL_ADDRESS paddr; 1631 ACPI_TABLE_RSDP *rsdp; 1632 1633 paddr = AcpiOsGetRootPointer(); 1634 if (paddr == 0) { 1635 printf("ACPI: couldn't get root pointer\n"); 1636 return NULL; 1637 } 1638 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1639 if (rsdp == NULL) { 1640 printf("ACPI: couldn't map RSDP\n"); 1641 return NULL; 1642 } 1643 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1644 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1645 else 1646 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1647 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1648 1649 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1650 } 1651 1652 static void 1653 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1654 { 1655 if (rsdt == NULL) 1656 return; 1657 1658 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1659 } 1660
Indexes created Mon Sep 22 05:09:51 GMT 2025