acpi.c revision 1.120.4.1.4.1
1 /* $NetBSD: acpi.c,v 1.120.4.1.4.1 2010/04/21 00:27:33 matt 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 1.120.4.1.4.1 2010/04/21 00:27:33 matt 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, struct cfdata *, void *); 122 static void acpi_attach(device_t, device_t, void *); 123 static void acpi_childdet(device_t, device_t); 124 125 static int acpi_print(void *aux, const char *); 126 127 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 128 129 extern struct cfdriver acpi_cd; 130 131 CFATTACH_DECL2_NEW(acpi, sizeof(struct acpi_softc), 132 acpi_match, acpi_attach, NULL, NULL, NULL, acpi_childdet); 133 134 /* 135 * This is a flag we set when the ACPI subsystem is active. Machine 136 * dependent code may wish to skip other steps (such as attaching 137 * subsystems that ACPI supercedes) when ACPI is active. 138 */ 139 int acpi_active; 140 int acpi_force_load; 141 int acpi_suspended = 0; 142 143 /* 144 * Pointer to the ACPI subsystem's state. There can be only 145 * one ACPI instance. 146 */ 147 struct acpi_softc *acpi_softc; 148 149 /* 150 * Locking stuff. 151 */ 152 static kmutex_t acpi_slock; 153 static int acpi_locked; 154 extern kmutex_t acpi_interrupt_list_mtx; 155 156 /* 157 * Ignored HIDs 158 */ 159 static const char * const acpi_ignored_ids[] = { 160 #if defined(i386) || defined(x86_64) 161 "PNP0000", /* AT interrupt controller is handled internally */ 162 "PNP0200", /* AT DMA controller is handled internally */ 163 "PNP0A??", /* Busses aren't enumerated with ACPI yet */ 164 "PNP0B00", /* AT RTC is handled internally */ 165 "PNP0C01", /* No "System Board" driver */ 166 "PNP0C02", /* No "PnP motherboard register resources" driver */ 167 "PNP0C0F", /* ACPI PCI link devices are handled internally */ 168 #endif 169 #if defined(x86_64) 170 "PNP0C04", /* FPU is handled internally */ 171 #endif 172 NULL 173 }; 174 175 /* 176 * sysctl-related information 177 */ 178 179 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 180 static int acpi_sleepstate = ACPI_STATE_S0; 181 static char acpi_supported_states[3 * 6 + 1] = "";; 182 183 /* 184 * Prototypes. 185 */ 186 static void acpi_build_tree(struct acpi_softc *); 187 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 188 189 static void acpi_enable_fixed_events(struct acpi_softc *); 190 191 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 192 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 193 static int is_available_state(struct acpi_softc *, int); 194 195 static bool acpi_suspend(device_t PMF_FN_PROTO); 196 static bool acpi_resume(device_t PMF_FN_PROTO); 197 198 /* 199 * acpi_probe: 200 * 201 * Probe for ACPI support. This is called by the 202 * machine-dependent ACPI front-end. All of the 203 * actual work is done by ACPICA. 204 * 205 * NOTE: This is not an autoconfiguration interface function. 206 */ 207 int 208 acpi_probe(void) 209 { 210 static int beenhere; 211 ACPI_TABLE_HEADER *rsdt; 212 ACPI_STATUS rv; 213 214 if (beenhere != 0) 215 panic("acpi_probe: ACPI has already been probed"); 216 beenhere = 1; 217 218 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 219 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 220 acpi_locked = 0; 221 222 /* 223 * Start up ACPICA. 224 */ 225 #ifdef ACPI_DEBUGGER 226 if (acpi_dbgr & ACPI_DBGR_INIT) 227 acpi_osd_debugger(); 228 #endif 229 230 AcpiGbl_AllMethodsSerialized = FALSE; 231 AcpiGbl_EnableInterpreterSlack = TRUE; 232 233 rv = AcpiInitializeSubsystem(); 234 if (ACPI_FAILURE(rv)) { 235 printf("ACPI: unable to initialize ACPICA: %s\n", 236 AcpiFormatException(rv)); 237 return 0; 238 } 239 240 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 241 if (ACPI_FAILURE(rv)) { 242 printf("ACPI: unable to initialize ACPI tables: %s\n", 243 AcpiFormatException(rv)); 244 return 0; 245 } 246 247 rv = AcpiReallocateRootTable(); 248 if (ACPI_FAILURE(rv)) { 249 printf("ACPI: unable to reallocate root table: %s\n", 250 AcpiFormatException(rv)); 251 return 0; 252 } 253 254 #ifdef ACPI_DEBUGGER 255 if (acpi_dbgr & ACPI_DBGR_TABLES) 256 acpi_osd_debugger(); 257 #endif 258 259 rv = AcpiLoadTables(); 260 if (ACPI_FAILURE(rv)) { 261 printf("ACPI: unable to load tables: %s\n", 262 AcpiFormatException(rv)); 263 return 0; 264 } 265 266 rsdt = acpi_map_rsdt(); 267 if (rsdt == NULL) { 268 printf("ACPI: unable to map RSDT\n"); 269 return 0; 270 } 271 272 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 273 printf("ACPI: BIOS implementation in listed as broken:\n"); 274 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 275 "AslId <%4.4s,%08x>\n", 276 rsdt->OemId, rsdt->OemTableId, 277 rsdt->OemRevision, 278 rsdt->AslCompilerId, 279 rsdt->AslCompilerRevision); 280 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 281 acpi_unmap_rsdt(rsdt); 282 return 0; 283 } 284 285 acpi_unmap_rsdt(rsdt); 286 287 #if notyet 288 /* Install the default address space handlers. */ 289 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 290 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 291 if (ACPI_FAILURE(rv)) { 292 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 293 AcpiFormatException(rv)); 294 return 0; 295 } 296 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 297 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 298 if (ACPI_FAILURE(rv)) { 299 printf("ACPI: unable to initialise SystemIO handler: %s\n", 300 AcpiFormatException(rv)); 301 return 0; 302 } 303 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 304 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 305 if (ACPI_FAILURE(rv)) { 306 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 307 AcpiFormatException(rv)); 308 return 0; 309 } 310 #endif 311 312 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 313 if (ACPI_FAILURE(rv)) { 314 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 315 return 0; 316 } 317 318 /* 319 * Looks like we have ACPI! 320 */ 321 322 return 1; 323 } 324 325 static int 326 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 327 { 328 struct cfattach *ca; 329 330 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 331 return (ca == &acpi_ca); 332 } 333 334 int 335 acpi_check(device_t parent, const char *ifattr) 336 { 337 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 338 } 339 340 ACPI_PHYSICAL_ADDRESS 341 acpi_OsGetRootPointer(void) 342 { 343 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 344 345 /* 346 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 347 * 348 * IA-64: Use the EFI. 349 * 350 * We let MD code handle this since there are multiple 351 * ways to do it. 352 */ 353 354 PhysicalAddress = acpi_md_OsGetRootPointer(); 355 356 if (acpi_root_pointer == 0) 357 acpi_root_pointer = PhysicalAddress; 358 359 return PhysicalAddress; 360 } 361 362 /* 363 * acpi_match: 364 * 365 * Autoconfiguration `match' routine. 366 */ 367 static int 368 acpi_match(device_t parent, struct cfdata *match, void *aux) 369 { 370 /* 371 * XXX Check other locators? Hard to know -- machine 372 * dependent code has already checked for the presence 373 * of ACPI by calling acpi_probe(), so I suppose we 374 * don't really have to do anything else. 375 */ 376 return 1; 377 } 378 379 /* Remove references to child devices. 380 * 381 * XXX Need to reclaim any resources? 382 */ 383 static void 384 acpi_childdet(device_t self, device_t child) 385 { 386 struct acpi_softc *sc = device_private(self); 387 struct acpi_scope *as; 388 struct acpi_devnode *ad; 389 390 TAILQ_FOREACH(as, &sc->sc_scopes, as_list) { 391 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 392 if (ad->ad_device == child) 393 ad->ad_device = NULL; 394 } 395 } 396 } 397 398 /* 399 * acpi_attach: 400 * 401 * Autoconfiguration `attach' routine. Finish initializing 402 * ACPICA (some initialization was done in acpi_probe(), 403 * which was required to check for the presence of ACPI), 404 * and enable the ACPI subsystem. 405 */ 406 static void 407 acpi_attach(device_t parent, device_t self, void *aux) 408 { 409 struct acpi_softc *sc = device_private(self); 410 struct acpibus_attach_args *aa = aux; 411 ACPI_STATUS rv; 412 ACPI_TABLE_HEADER *rsdt; 413 414 aprint_naive("\n"); 415 aprint_normal(": Intel ACPICA %08x\n", ACPI_CA_VERSION); 416 417 if (acpi_softc != NULL) 418 panic("acpi_attach: ACPI has already been attached"); 419 420 sysmon_power_settype("acpi"); 421 422 rsdt = acpi_map_rsdt(); 423 if (rsdt) { 424 aprint_verbose_dev( 425 self, 426 "X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 427 rsdt->OemId, rsdt->OemTableId, 428 rsdt->OemRevision, 429 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 430 } else 431 aprint_error_dev(self, "X/RSDT: Not found\n"); 432 acpi_unmap_rsdt(rsdt); 433 434 sc->sc_dev = self; 435 sc->sc_quirks = acpi_find_quirks(); 436 437 sc->sc_iot = aa->aa_iot; 438 sc->sc_memt = aa->aa_memt; 439 sc->sc_pc = aa->aa_pc; 440 sc->sc_pciflags = aa->aa_pciflags; 441 sc->sc_ic = aa->aa_ic; 442 443 acpi_softc = sc; 444 445 /* 446 * Register null power management handler 447 */ 448 if (!pmf_device_register(self, acpi_suspend, acpi_resume)) 449 aprint_error_dev(self, "couldn't establish power handler\n"); 450 451 /* 452 * Bring ACPI on-line. 453 */ 454 #ifdef ACPI_DEBUGGER 455 if (acpi_dbgr & ACPI_DBGR_ENABLE) 456 acpi_osd_debugger(); 457 #endif 458 459 #define ACPI_ENABLE_PHASE1 \ 460 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 461 #define ACPI_ENABLE_PHASE2 \ 462 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 463 ACPI_NO_ADDRESS_SPACE_INIT) 464 465 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 466 if (ACPI_FAILURE(rv)) { 467 aprint_error_dev(self, "unable to enable ACPI: %s\n", 468 AcpiFormatException(rv)); 469 return; 470 } 471 472 acpi_md_callback(); 473 474 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 475 if (ACPI_FAILURE(rv)) { 476 aprint_error_dev(self, "unable to enable ACPI: %s\n", 477 AcpiFormatException(rv)); 478 return; 479 } 480 481 /* early EC handler initialization if ECDT table is available */ 482 config_found_ia(self, "acpiecdtbus", NULL, NULL); 483 484 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 485 if (ACPI_FAILURE(rv)) { 486 aprint_error_dev(self, 487 "unable to initialize ACPI objects: %s\n", 488 AcpiFormatException(rv)); 489 return; 490 } 491 acpi_active = 1; 492 493 /* Our current state is "awake". */ 494 sc->sc_sleepstate = ACPI_STATE_S0; 495 496 /* Show SCI interrupt. */ 497 aprint_verbose_dev(self, "SCI interrupting at int %d\n", 498 AcpiGbl_FADT.SciInterrupt); 499 500 /* 501 * Check for fixed-hardware features. 502 */ 503 acpi_enable_fixed_events(sc); 504 acpitimer_init(); 505 506 /* 507 * Scan the namespace and build our device tree. 508 */ 509 #ifdef ACPI_DEBUGGER 510 if (acpi_dbgr & ACPI_DBGR_PROBE) 511 acpi_osd_debugger(); 512 #endif 513 acpi_build_tree(sc); 514 515 sprintf(acpi_supported_states, "%s%s%s%s%s%s", 516 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 517 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 518 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 519 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 520 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 521 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 522 523 #ifdef ACPI_DEBUGGER 524 if (acpi_dbgr & ACPI_DBGR_RUNNING) 525 acpi_osd_debugger(); 526 #endif 527 } 528 529 static bool 530 acpi_suspend(device_t dv PMF_FN_ARGS) 531 { 532 acpi_suspended = 1; 533 return true; 534 } 535 536 static bool 537 acpi_resume(device_t dv PMF_FN_ARGS) 538 { 539 acpi_suspended = 0; 540 return true; 541 } 542 543 #if 0 544 /* 545 * acpi_disable: 546 * 547 * Disable ACPI. 548 */ 549 static ACPI_STATUS 550 acpi_disable(struct acpi_softc *sc) 551 { 552 ACPI_STATUS rv = AE_OK; 553 554 if (acpi_active) { 555 rv = AcpiDisable(); 556 if (ACPI_SUCCESS(rv)) 557 acpi_active = 0; 558 } 559 return rv; 560 } 561 #endif 562 563 struct acpi_make_devnode_state { 564 struct acpi_softc *softc; 565 struct acpi_scope *scope; 566 }; 567 568 /* 569 * acpi_build_tree: 570 * 571 * Scan relevant portions of the ACPI namespace and attach 572 * child devices. 573 */ 574 static void 575 acpi_build_tree(struct acpi_softc *sc) 576 { 577 static const char *scopes[] = { 578 "\\_PR_", /* ACPI 1.0 processor namespace */ 579 "\\_SB_", /* system bus namespace */ 580 "\\_SI_", /* system indicator namespace */ 581 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 582 NULL, 583 }; 584 struct acpi_attach_args aa; 585 struct acpi_make_devnode_state state; 586 struct acpi_scope *as; 587 struct acpi_devnode *ad; 588 ACPI_HANDLE parent; 589 ACPI_STATUS rv; 590 int i; 591 592 TAILQ_INIT(&sc->sc_scopes); 593 594 state.softc = sc; 595 596 /* 597 * Scan the namespace and build our tree. 598 */ 599 for (i = 0; scopes[i] != NULL; i++) { 600 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 601 as->as_name = scopes[i]; 602 TAILQ_INIT(&as->as_devnodes); 603 604 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 605 606 state.scope = as; 607 608 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 609 &parent); 610 if (ACPI_SUCCESS(rv)) { 611 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 612 acpi_make_devnode, &state, NULL); 613 } 614 615 /* Now, for this namespace, try and attach the devices. */ 616 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 617 aa.aa_node = ad; 618 aa.aa_iot = sc->sc_iot; 619 aa.aa_memt = sc->sc_memt; 620 aa.aa_pc = sc->sc_pc; 621 aa.aa_pciflags = sc->sc_pciflags; 622 aa.aa_ic = sc->sc_ic; 623 624 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 625 /* 626 * XXX We only attach devices which are: 627 * 628 * - present 629 * - enabled 630 * - functioning properly 631 * 632 * However, if enabled, it's decoding resources, 633 * so we should claim them, if possible. 634 * Requires changes to bus_space(9). 635 */ 636 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 637 ACPI_VALID_STA && 638 (ad->ad_devinfo->CurrentStatus & 639 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 640 ACPI_STA_DEV_OK)) != 641 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 642 ACPI_STA_DEV_OK)) 643 continue; 644 } 645 646 /* 647 * XXX Same problem as above... 648 * 649 * Do this check only for devices, as e.g. 650 * a Thermal Zone doesn't have a HID. 651 */ 652 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 653 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 654 continue; 655 656 /* 657 * Handled internally 658 */ 659 if (ad->ad_devinfo->Type == ACPI_TYPE_PROCESSOR || 660 ad->ad_devinfo->Type == ACPI_TYPE_POWER) 661 continue; 662 663 /* 664 * Skip ignored HIDs 665 */ 666 if (acpi_match_hid(ad->ad_devinfo, acpi_ignored_ids)) 667 continue; 668 669 ad->ad_device = config_found_ia(sc->sc_dev, 670 "acpinodebus", &aa, acpi_print); 671 } 672 } 673 acpi_wakedev_scan(sc); 674 675 config_found_ia(sc->sc_dev, "acpiapmbus", NULL, NULL); 676 } 677 678 #ifdef ACPI_ACTIVATE_DEV 679 static void 680 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 681 { 682 ACPI_STATUS rv; 683 ACPI_BUFFER buf; 684 685 buf.Pointer = NULL; 686 buf.Length = ACPI_ALLOCATE_BUFFER; 687 688 #ifdef ACPI_DEBUG 689 aprint_normal("acpi_activate_device: %s, old status=%x\n", 690 (*di)->HardwareId.Value, (*di)->CurrentStatus); 691 #endif 692 693 rv = acpi_allocate_resources(handle); 694 if (ACPI_FAILURE(rv)) { 695 aprint_error("acpi: activate failed for %s\n", 696 (*di)->HardwareId.Value); 697 } else { 698 aprint_verbose("acpi: activated %s\n", 699 (*di)->HardwareId.Value); 700 } 701 702 (void)AcpiGetObjectInfo(handle, &buf); 703 AcpiOsFree(*di); 704 *di = buf.Pointer; 705 706 #ifdef ACPI_DEBUG 707 aprint_normal("acpi_activate_device: %s, new status=%x\n", 708 (*di)->HardwareId.Value, (*di)->CurrentStatus); 709 #endif 710 } 711 #endif /* ACPI_ACTIVATE_DEV */ 712 713 /* 714 * acpi_make_devnode: 715 * 716 * Make an ACPI devnode. 717 */ 718 static ACPI_STATUS 719 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 720 void **status) 721 { 722 struct acpi_make_devnode_state *state = context; 723 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 724 struct acpi_softc *sc = state->softc; 725 #endif 726 struct acpi_scope *as = state->scope; 727 struct acpi_devnode *ad; 728 ACPI_OBJECT_TYPE type; 729 ACPI_BUFFER buf; 730 ACPI_DEVICE_INFO *devinfo; 731 ACPI_STATUS rv; 732 ACPI_NAME_UNION *anu; 733 int i, clear = 0; 734 735 rv = AcpiGetType(handle, &type); 736 if (ACPI_SUCCESS(rv)) { 737 buf.Pointer = NULL; 738 buf.Length = ACPI_ALLOCATE_BUFFER; 739 rv = AcpiGetObjectInfo(handle, &buf); 740 if (ACPI_FAILURE(rv)) { 741 #ifdef ACPI_DEBUG 742 aprint_normal_dev(sc->sc_dev, 743 "AcpiGetObjectInfo failed: %s\n", 744 AcpiFormatException(rv)); 745 #endif 746 goto out; /* XXX why return OK */ 747 } 748 749 devinfo = buf.Pointer; 750 751 switch (type) { 752 case ACPI_TYPE_DEVICE: 753 #ifdef ACPI_ACTIVATE_DEV 754 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 755 (ACPI_VALID_STA|ACPI_VALID_HID) && 756 (devinfo->CurrentStatus & 757 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 758 ACPI_STA_DEV_PRESENT) 759 acpi_activate_device(handle, &devinfo); 760 761 /* FALLTHROUGH */ 762 #endif 763 764 case ACPI_TYPE_PROCESSOR: 765 case ACPI_TYPE_THERMAL: 766 case ACPI_TYPE_POWER: 767 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 768 if (ad == NULL) 769 return AE_NO_MEMORY; 770 771 ad->ad_devinfo = devinfo; 772 ad->ad_handle = handle; 773 ad->ad_level = level; 774 ad->ad_scope = as; 775 ad->ad_type = type; 776 777 anu = (ACPI_NAME_UNION *)&devinfo->Name; 778 ad->ad_name[4] = '\0'; 779 for (i = 3, clear = 0; i >= 0; i--) { 780 if (!clear && anu->Ascii[i] == '_') 781 ad->ad_name[i] = '\0'; 782 else { 783 ad->ad_name[i] = anu->Ascii[i]; 784 clear = 1; 785 } 786 } 787 if (ad->ad_name[0] == '\0') 788 ad->ad_name[0] = '_'; 789 790 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 791 792 if (type == ACPI_TYPE_DEVICE && 793 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 794 goto out; 795 796 #ifdef ACPI_EXTRA_DEBUG 797 aprint_normal_dev(sc->sc_dev, 798 "HID %s found in scope %s level %d\n", 799 ad->ad_devinfo->HardwareId.Value, 800 as->as_name, ad->ad_level); 801 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 802 aprint_normal(" UID %s\n", 803 ad->ad_devinfo->UniqueId.Value); 804 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 805 aprint_normal(" ADR 0x%016" PRIx64 "\n", 806 ad->ad_devinfo->Address); 807 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 808 aprint_normal(" STA 0x%08x\n", 809 ad->ad_devinfo->CurrentStatus); 810 #endif 811 } 812 } 813 out: 814 return AE_OK; 815 } 816 817 /* 818 * acpi_print: 819 * 820 * Autoconfiguration print routine for ACPI node bus. 821 */ 822 static int 823 acpi_print(void *aux, const char *pnp) 824 { 825 struct acpi_attach_args *aa = aux; 826 ACPI_STATUS rv; 827 828 if (pnp) { 829 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 830 char *pnpstr = 831 aa->aa_node->ad_devinfo->HardwareId.Value; 832 char *str; 833 834 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 835 pnpstr); 836 rv = acpi_eval_string(aa->aa_node->ad_handle, 837 "_STR", &str); 838 if (ACPI_SUCCESS(rv)) { 839 aprint_normal("[%s] ", str); 840 AcpiOsFree(str); 841 } 842 #ifdef ACPIVERBOSE 843 else { 844 int i; 845 846 for (i = 0; i < sizeof(acpi_knowndevs) / 847 sizeof(acpi_knowndevs[0]); i++) { 848 if (strcmp(acpi_knowndevs[i].pnp, 849 pnpstr) == 0) { 850 aprint_normal("[%s] ", 851 acpi_knowndevs[i].str); 852 } 853 } 854 } 855 856 #endif 857 aprint_normal("at %s", pnp); 858 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 859 aprint_normal("%s (ACPI Object Type '%s' " 860 "[0x%02x]) ", aa->aa_node->ad_name, 861 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 862 aa->aa_node->ad_devinfo->Type); 863 aprint_normal("at %s", pnp); 864 } else 865 return 0; 866 } else { 867 aprint_normal(" (%s", aa->aa_node->ad_name); 868 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 869 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.Value); 870 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 871 const char *uid; 872 873 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 874 if (uid[0] == '\0') 875 uid = "<null>"; 876 aprint_normal("-%s", uid); 877 } 878 } 879 aprint_normal(")"); 880 } 881 882 return UNCONF; 883 } 884 885 /***************************************************************************** 886 * ACPI fixed-hardware feature handlers 887 *****************************************************************************/ 888 889 static UINT32 acpi_fixed_button_handler(void *); 890 static void acpi_fixed_button_pressed(void *); 891 892 /* 893 * acpi_enable_fixed_events: 894 * 895 * Enable any fixed-hardware feature handlers. 896 */ 897 static void 898 acpi_enable_fixed_events(struct acpi_softc *sc) 899 { 900 static int beenhere; 901 ACPI_STATUS rv; 902 903 KASSERT(beenhere == 0); 904 beenhere = 1; 905 906 /* 907 * Check for fixed-hardware buttons. 908 */ 909 910 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 911 aprint_verbose_dev(sc->sc_dev, 912 "fixed-feature power button present\n"); 913 sc->sc_smpsw_power.smpsw_name = device_xname(sc->sc_dev); 914 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 915 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 916 aprint_error_dev(sc->sc_dev, 917 "unable to register fixed power " 918 "button with sysmon\n"); 919 } else { 920 rv = AcpiInstallFixedEventHandler( 921 ACPI_EVENT_POWER_BUTTON, 922 acpi_fixed_button_handler, &sc->sc_smpsw_power); 923 if (ACPI_FAILURE(rv)) { 924 aprint_error_dev(sc->sc_dev, 925 "unable to install handler " 926 "for fixed power button: %s\n", 927 AcpiFormatException(rv)); 928 } 929 } 930 } 931 932 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 933 aprint_verbose_dev(sc->sc_dev, 934 "fixed-feature sleep button present\n"); 935 sc->sc_smpsw_sleep.smpsw_name = device_xname(sc->sc_dev); 936 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 937 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 938 aprint_error_dev(sc->sc_dev, 939 "unable to register fixed sleep " 940 "button with sysmon\n"); 941 } else { 942 rv = AcpiInstallFixedEventHandler( 943 ACPI_EVENT_SLEEP_BUTTON, 944 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 945 if (ACPI_FAILURE(rv)) { 946 aprint_error_dev(sc->sc_dev, 947 "unable to install handler " 948 "for fixed sleep button: %s\n", 949 AcpiFormatException(rv)); 950 } 951 } 952 } 953 } 954 955 /* 956 * acpi_fixed_button_handler: 957 * 958 * Event handler for the fixed buttons. 959 */ 960 static UINT32 961 acpi_fixed_button_handler(void *context) 962 { 963 struct sysmon_pswitch *smpsw = context; 964 int rv; 965 966 #ifdef ACPI_BUT_DEBUG 967 printf("%s: fixed button handler\n", smpsw->smpsw_name); 968 #endif 969 970 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 971 acpi_fixed_button_pressed, smpsw); 972 if (ACPI_FAILURE(rv)) 973 printf("%s: WARNING: unable to queue fixed button pressed " 974 "callback: %s\n", smpsw->smpsw_name, 975 AcpiFormatException(rv)); 976 977 return ACPI_INTERRUPT_HANDLED; 978 } 979 980 /* 981 * acpi_fixed_button_pressed: 982 * 983 * Deal with a fixed button being pressed. 984 */ 985 static void 986 acpi_fixed_button_pressed(void *context) 987 { 988 struct sysmon_pswitch *smpsw = context; 989 990 #ifdef ACPI_BUT_DEBUG 991 printf("%s: fixed button pressed, calling sysmon\n", 992 smpsw->smpsw_name); 993 #endif 994 995 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 996 } 997 998 /***************************************************************************** 999 * ACPI utility routines. 1000 *****************************************************************************/ 1001 1002 /* 1003 * acpi_eval_integer: 1004 * 1005 * Evaluate an integer object. 1006 */ 1007 ACPI_STATUS 1008 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 1009 { 1010 ACPI_STATUS rv; 1011 ACPI_BUFFER buf; 1012 ACPI_OBJECT param; 1013 1014 if (handle == NULL) 1015 handle = ACPI_ROOT_OBJECT; 1016 1017 buf.Pointer = ¶m; 1018 buf.Length = sizeof(param); 1019 1020 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 1021 if (ACPI_SUCCESS(rv)) 1022 *valp = param.Integer.Value; 1023 1024 return rv; 1025 } 1026 1027 /* 1028 * acpi_eval_string: 1029 * 1030 * Evaluate a (Unicode) string object. 1031 */ 1032 ACPI_STATUS 1033 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 1034 { 1035 ACPI_STATUS rv; 1036 ACPI_BUFFER buf; 1037 1038 if (handle == NULL) 1039 handle = ACPI_ROOT_OBJECT; 1040 1041 buf.Pointer = NULL; 1042 buf.Length = ACPI_ALLOCATE_BUFFER; 1043 1044 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1045 if (ACPI_SUCCESS(rv)) { 1046 ACPI_OBJECT *param = buf.Pointer; 1047 const char *ptr = param->String.Pointer; 1048 size_t len = param->String.Length; 1049 if ((*stringp = AcpiOsAllocate(len)) == NULL) 1050 rv = AE_NO_MEMORY; 1051 else 1052 (void)memcpy(*stringp, ptr, len); 1053 AcpiOsFree(param); 1054 } 1055 1056 return rv; 1057 } 1058 1059 1060 /* 1061 * acpi_eval_struct: 1062 * 1063 * Evaluate a more complex structure. 1064 * Caller must free buf.Pointer by AcpiOsFree(). 1065 */ 1066 ACPI_STATUS 1067 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1068 { 1069 ACPI_STATUS rv; 1070 1071 if (handle == NULL) 1072 handle = ACPI_ROOT_OBJECT; 1073 1074 bufp->Pointer = NULL; 1075 bufp->Length = ACPI_ALLOCATE_BUFFER; 1076 1077 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1078 1079 return rv; 1080 } 1081 1082 /* 1083 * acpi_foreach_package_object: 1084 * 1085 * Iterate over all objects in a in a packages and pass then all 1086 * to a function. If the called function returns non AE_OK, the 1087 * iteration is stopped and that value is returned. 1088 */ 1089 1090 ACPI_STATUS 1091 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1092 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1093 void *arg) 1094 { 1095 ACPI_STATUS rv = AE_OK; 1096 int i; 1097 1098 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1099 return AE_BAD_PARAMETER; 1100 1101 for (i = 0; i < pkg->Package.Count; i++) { 1102 rv = (*func)(&pkg->Package.Elements[i], arg); 1103 if (ACPI_FAILURE(rv)) 1104 break; 1105 } 1106 1107 return rv; 1108 } 1109 1110 const char * 1111 acpi_name(ACPI_HANDLE handle) 1112 { 1113 static char buffer[80]; 1114 ACPI_BUFFER buf; 1115 ACPI_STATUS rv; 1116 1117 buf.Length = sizeof(buffer); 1118 buf.Pointer = buffer; 1119 1120 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1121 if (ACPI_FAILURE(rv)) 1122 return "(unknown acpi path)"; 1123 return buffer; 1124 } 1125 1126 /* 1127 * acpi_get: 1128 * 1129 * Fetch data info the specified (empty) ACPI buffer. 1130 * Caller must free buf.Pointer by AcpiOsFree(). 1131 */ 1132 ACPI_STATUS 1133 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1134 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1135 { 1136 buf->Pointer = NULL; 1137 buf->Length = ACPI_ALLOCATE_BUFFER; 1138 1139 return (*getit)(handle, buf); 1140 } 1141 1142 1143 /* 1144 * acpi_match_hid 1145 * 1146 * Match given ids against _HID and _CIDs 1147 */ 1148 int 1149 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1150 { 1151 int i; 1152 1153 while (*ids) { 1154 if (ad->Valid & ACPI_VALID_HID) { 1155 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 1156 return 1; 1157 } 1158 1159 if (ad->Valid & ACPI_VALID_CID) { 1160 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1161 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1162 return 1; 1163 } 1164 } 1165 ids++; 1166 } 1167 1168 return 0; 1169 } 1170 1171 /* 1172 * acpi_wake_gpe_helper 1173 * 1174 * Set/unset GPE as both Runtime and Wake 1175 */ 1176 static void 1177 acpi_wake_gpe_helper(ACPI_HANDLE handle, bool enable) 1178 { 1179 ACPI_BUFFER buf; 1180 ACPI_STATUS rv; 1181 ACPI_OBJECT *p, *elt; 1182 1183 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1184 if (ACPI_FAILURE(rv)) 1185 return; /* just ignore */ 1186 1187 p = buf.Pointer; 1188 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1189 goto out; /* just ignore */ 1190 1191 elt = p->Package.Elements; 1192 1193 /* TBD: package support */ 1194 if (enable) { 1195 AcpiSetGpeType(NULL, elt[0].Integer.Value, 1196 ACPI_GPE_TYPE_WAKE_RUN); 1197 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1198 } else 1199 AcpiDisableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1200 1201 out: 1202 AcpiOsFree(buf.Pointer); 1203 } 1204 1205 /* 1206 * acpi_clear_wake_gpe 1207 * 1208 * Clear GPE as both Runtime and Wake 1209 */ 1210 void 1211 acpi_clear_wake_gpe(ACPI_HANDLE handle) 1212 { 1213 acpi_wake_gpe_helper(handle, false); 1214 } 1215 1216 /* 1217 * acpi_set_wake_gpe 1218 * 1219 * Set GPE as both Runtime and Wake 1220 */ 1221 void 1222 acpi_set_wake_gpe(ACPI_HANDLE handle) 1223 { 1224 acpi_wake_gpe_helper(handle, true); 1225 } 1226 1227 1228 /***************************************************************************** 1229 * ACPI sleep support. 1230 *****************************************************************************/ 1231 1232 static int 1233 is_available_state(struct acpi_softc *sc, int state) 1234 { 1235 UINT8 type_a, type_b; 1236 1237 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1238 &type_a, &type_b)); 1239 } 1240 1241 /* 1242 * acpi_enter_sleep_state: 1243 * 1244 * enter to the specified sleep state. 1245 */ 1246 1247 ACPI_STATUS 1248 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1249 { 1250 int err; 1251 ACPI_STATUS ret = AE_OK; 1252 1253 if (state == acpi_sleepstate) 1254 return AE_OK; 1255 1256 aprint_normal_dev(sc->sc_dev, "entering state %d\n", state); 1257 1258 switch (state) { 1259 case ACPI_STATE_S0: 1260 break; 1261 case ACPI_STATE_S1: 1262 case ACPI_STATE_S2: 1263 case ACPI_STATE_S3: 1264 case ACPI_STATE_S4: 1265 if (!is_available_state(sc, state)) { 1266 aprint_error_dev(sc->sc_dev, 1267 "ACPI S%d not available on this platform\n", state); 1268 break; 1269 } 1270 1271 acpi_wakedev_commit(sc); 1272 1273 if (state != ACPI_STATE_S1 && !pmf_system_suspend(PMF_F_NONE)) { 1274 aprint_error_dev(sc->sc_dev, "aborting suspend\n"); 1275 break; 1276 } 1277 1278 ret = AcpiEnterSleepStatePrep(state); 1279 if (ACPI_FAILURE(ret)) { 1280 aprint_error_dev(sc->sc_dev, 1281 "failed preparing to sleep (%s)\n", 1282 AcpiFormatException(ret)); 1283 break; 1284 } 1285 1286 acpi_sleepstate = state; 1287 if (state == ACPI_STATE_S1) { 1288 /* just enter the state */ 1289 acpi_md_OsDisableInterrupt(); 1290 ret = AcpiEnterSleepState((UINT8)state); 1291 if (ACPI_FAILURE(ret)) 1292 aprint_error_dev(sc->sc_dev, 1293 "failed to enter sleep state S1: %s\n", 1294 AcpiFormatException(ret)); 1295 AcpiLeaveSleepState((UINT8)state); 1296 } else { 1297 err = acpi_md_sleep(state); 1298 if (state == ACPI_STATE_S4) 1299 AcpiEnable(); 1300 pmf_system_bus_resume(PMF_F_NONE); 1301 AcpiLeaveSleepState((UINT8)state); 1302 pmf_system_resume(PMF_F_NONE); 1303 } 1304 1305 break; 1306 case ACPI_STATE_S5: 1307 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1308 if (ACPI_FAILURE(ret)) { 1309 aprint_error_dev(sc->sc_dev, 1310 "failed preparing to sleep (%s)\n", 1311 AcpiFormatException(ret)); 1312 break; 1313 } 1314 DELAY(1000000); 1315 acpi_sleepstate = state; 1316 acpi_md_OsDisableInterrupt(); 1317 AcpiEnterSleepState(ACPI_STATE_S5); 1318 aprint_error_dev(sc->sc_dev, "WARNING powerdown failed!\n"); 1319 break; 1320 } 1321 1322 acpi_sleepstate = ACPI_STATE_S0; 1323 return ret; 1324 } 1325 1326 #if defined(ACPI_ACTIVATE_DEV) 1327 /* XXX This very incomplete */ 1328 ACPI_STATUS 1329 acpi_allocate_resources(ACPI_HANDLE handle) 1330 { 1331 ACPI_BUFFER bufp, bufc, bufn; 1332 ACPI_RESOURCE *resp, *resc, *resn; 1333 ACPI_RESOURCE_IRQ *irq; 1334 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1335 ACPI_STATUS rv; 1336 uint delta; 1337 1338 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1339 if (ACPI_FAILURE(rv)) 1340 goto out; 1341 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1342 if (ACPI_FAILURE(rv)) { 1343 goto out1; 1344 } 1345 1346 bufn.Length = 1000; 1347 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1348 resp = bufp.Pointer; 1349 resc = bufc.Pointer; 1350 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1351 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1352 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1353 resp = ACPI_NEXT_RESOURCE(resp); 1354 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1355 break; 1356 /* Found identical Id */ 1357 resn->Type = resc->Type; 1358 switch (resc->Type) { 1359 case ACPI_RESOURCE_TYPE_IRQ: 1360 memcpy(&resn->Data, &resp->Data, 1361 sizeof(ACPI_RESOURCE_IRQ)); 1362 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1363 irq->Interrupts[0] = 1364 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1365 Interrupts[irq->InterruptCount-1]; 1366 irq->InterruptCount = 1; 1367 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1368 break; 1369 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1370 memcpy(&resn->Data, &resp->Data, 1371 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1372 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1373 #if 0 1374 /* 1375 * XXX not duplicating the interrupt logic above 1376 * because its not clear what it accomplishes. 1377 */ 1378 xirq->Interrupts[0] = 1379 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1380 Interrupts[irq->NumberOfInterrupts-1]; 1381 xirq->NumberOfInterrupts = 1; 1382 #endif 1383 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1384 break; 1385 case ACPI_RESOURCE_TYPE_IO: 1386 memcpy(&resn->Data, &resp->Data, 1387 sizeof(ACPI_RESOURCE_IO)); 1388 resn->Length = resp->Length; 1389 break; 1390 default: 1391 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1392 rv = AE_BAD_DATA; 1393 goto out2; 1394 } 1395 resc = ACPI_NEXT_RESOURCE(resc); 1396 resn = ACPI_NEXT_RESOURCE(resn); 1397 resp = ACPI_NEXT_RESOURCE(resp); 1398 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1399 if (delta >= 1400 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1401 bufn.Length *= 2; 1402 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1403 M_ACPI, M_WAITOK); 1404 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1405 } 1406 } 1407 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1408 printf("acpi_allocate_resources: resc not exhausted\n"); 1409 rv = AE_BAD_DATA; 1410 goto out3; 1411 } 1412 1413 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1414 rv = AcpiSetCurrentResources(handle, &bufn); 1415 if (ACPI_FAILURE(rv)) { 1416 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1417 AcpiFormatException(rv)); 1418 } 1419 1420 out3: 1421 free(bufn.Pointer, M_ACPI); 1422 out2: 1423 AcpiOsFree(bufc.Pointer); 1424 out1: 1425 AcpiOsFree(bufp.Pointer); 1426 out: 1427 return rv; 1428 } 1429 #endif /* ACPI_ACTIVATE_DEV */ 1430 1431 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1432 { 1433 const struct sysctlnode *node; 1434 const struct sysctlnode *ssnode; 1435 1436 if (sysctl_createv(clog, 0, NULL, NULL, 1437 CTLFLAG_PERMANENT, 1438 CTLTYPE_NODE, "hw", NULL, 1439 NULL, 0, NULL, 0, 1440 CTL_HW, CTL_EOL) != 0) 1441 return; 1442 1443 if (sysctl_createv(clog, 0, NULL, &node, 1444 CTLFLAG_PERMANENT, 1445 CTLTYPE_NODE, "acpi", NULL, 1446 NULL, 0, NULL, 0, 1447 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1448 return; 1449 1450 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1451 CTLTYPE_QUAD, "root", 1452 SYSCTL_DESCR("ACPI root pointer"), 1453 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1454 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1455 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1456 CTLTYPE_STRING, "supported_states", 1457 SYSCTL_DESCR("Supported ACPI system states"), 1458 NULL, 0, acpi_supported_states, 0, 1459 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1460 1461 /* ACPI sleepstate sysctl */ 1462 if (sysctl_createv(NULL, 0, NULL, &node, 1463 CTLFLAG_PERMANENT, 1464 CTLTYPE_NODE, "machdep", NULL, 1465 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1466 return; 1467 if (sysctl_createv(NULL, 0, &node, &ssnode, 1468 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1469 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1470 CTL_EOL) != 0) 1471 return; 1472 } 1473 1474 static int 1475 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1476 { 1477 int error, t; 1478 struct sysctlnode node; 1479 1480 node = *rnode; 1481 t = acpi_sleepstate; 1482 node.sysctl_data = &t; 1483 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1484 if (error || newp == NULL) 1485 return error; 1486 1487 if (acpi_softc == NULL) 1488 return ENOSYS; 1489 1490 acpi_enter_sleep_state(acpi_softc, t); 1491 1492 return 0; 1493 } 1494 1495 static ACPI_TABLE_HEADER * 1496 acpi_map_rsdt(void) 1497 { 1498 ACPI_PHYSICAL_ADDRESS paddr; 1499 ACPI_TABLE_RSDP *rsdp; 1500 1501 paddr = AcpiOsGetRootPointer(); 1502 if (paddr == 0) { 1503 printf("ACPI: couldn't get root pointer\n"); 1504 return NULL; 1505 } 1506 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1507 if (rsdp == NULL) { 1508 printf("ACPI: couldn't map RSDP\n"); 1509 return NULL; 1510 } 1511 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1512 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1513 else 1514 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1515 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1516 1517 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1518 } 1519 1520 static void 1521 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1522 { 1523 if (rsdt == NULL) 1524 return; 1525 1526 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1527 } 1528
Indexes created Wed Oct 01 19:09:53 GMT 2025