1 /* $NetBSD: acpi.c,v 1.109 2008/02/13 15:27:55 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright 2001, 2003 Wasabi Systems, Inc. 41 * All rights reserved. 42 * 43 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed for the NetBSD Project by 56 * Wasabi Systems, Inc. 57 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 58 * or promote products derived from this software without specific prior 59 * written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 63 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 64 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 65 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 66 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 67 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 68 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 69 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 70 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 71 * POSSIBILITY OF SUCH DAMAGE. 72 */ 73 74 /* 75 * Autoconfiguration support for the Intel ACPI Component Architecture 76 * ACPI reference implementation. 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.109 2008/02/13 15:27:55 jmcneill Exp $"); 81 82 #include "opt_acpi.h" 83 #include "opt_pcifixup.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/device.h> 88 #include <sys/malloc.h> 89 #include <sys/mutex.h> 90 #include <sys/kernel.h> 91 #include <sys/proc.h> 92 #include <sys/sysctl.h> 93 94 #include <dev/acpi/acpica.h> 95 #include <dev/acpi/acpireg.h> 96 #include <dev/acpi/acpivar.h> 97 #include <dev/acpi/acpi_osd.h> 98 #include <dev/acpi/acpi_timer.h> 99 #ifdef ACPIVERBOSE 100 #include <dev/acpi/acpidevs_data.h> 101 #endif 102 103 #if defined(ACPI_PCI_FIXUP) 104 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 105 #endif 106 107 #ifdef PCI_INTR_FIXUP_DISABLED 108 #include <dev/pci/pcidevs.h> 109 #endif 110 111 MALLOC_DECLARE(M_ACPI); 112 113 #include <machine/acpi_machdep.h> 114 115 #ifdef ACPI_DEBUGGER 116 #define ACPI_DBGR_INIT 0x01 117 #define ACPI_DBGR_TABLES 0x02 118 #define ACPI_DBGR_ENABLE 0x04 119 #define ACPI_DBGR_PROBE 0x08 120 #define ACPI_DBGR_RUNNING 0x10 121 122 static int acpi_dbgr = 0x00; 123 #endif 124 125 static ACPI_TABLE_DESC acpi_initial_tables[128]; 126 127 static int acpi_match(struct device *, struct cfdata *, void *); 128 static void acpi_attach(struct device *, struct device *, void *); 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_DECL(acpi, sizeof(struct acpi_softc), 137 acpi_match, acpi_attach, NULL, NULL); 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; 146 147 /* 148 * Pointer to the ACPI subsystem's state. There can be only 149 * one ACPI instance. 150 */ 151 struct acpi_softc *acpi_softc; 152 153 /* 154 * Locking stuff. 155 */ 156 static kmutex_t acpi_slock; 157 static int acpi_locked; 158 extern kmutex_t acpi_interrupt_list_mtx; 159 160 /* 161 * sysctl-related information 162 */ 163 164 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 165 static int acpi_sleepstate = ACPI_STATE_S0; 166 static char acpi_supported_states[3 * 6 + 1] = "";; 167 168 /* 169 * Prototypes. 170 */ 171 static void acpi_shutdown(void *); 172 static void acpi_build_tree(struct acpi_softc *); 173 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 174 175 static void acpi_enable_fixed_events(struct acpi_softc *); 176 177 static ACPI_TABLE_HEADER *acpi_map_rsdt(void); 178 static void acpi_unmap_rsdt(ACPI_TABLE_HEADER *); 179 static int is_available_state(struct acpi_softc *, int); 180 181 /* 182 * acpi_probe: 183 * 184 * Probe for ACPI support. This is called by the 185 * machine-dependent ACPI front-end. All of the 186 * actual work is done by ACPICA. 187 * 188 * NOTE: This is not an autoconfiguration interface function. 189 */ 190 int 191 acpi_probe(void) 192 { 193 static int beenhere; 194 ACPI_TABLE_HEADER *rsdt; 195 ACPI_STATUS rv; 196 197 if (beenhere != 0) 198 panic("acpi_probe: ACPI has already been probed"); 199 beenhere = 1; 200 201 mutex_init(&acpi_slock, MUTEX_DEFAULT, IPL_NONE); 202 mutex_init(&acpi_interrupt_list_mtx, MUTEX_DEFAULT, IPL_NONE); 203 acpi_locked = 0; 204 205 /* 206 * Start up ACPICA. 207 */ 208 #ifdef ACPI_DEBUGGER 209 if (acpi_dbgr & ACPI_DBGR_INIT) 210 acpi_osd_debugger(); 211 #endif 212 213 AcpiGbl_AllMethodsSerialized = FALSE; 214 AcpiGbl_EnableInterpreterSlack = TRUE; 215 216 rv = AcpiInitializeSubsystem(); 217 if (ACPI_FAILURE(rv)) { 218 printf("ACPI: unable to initialize ACPICA: %s\n", 219 AcpiFormatException(rv)); 220 return 0; 221 } 222 223 rv = AcpiInitializeTables(acpi_initial_tables, 128, 0); 224 if (ACPI_FAILURE(rv)) { 225 printf("ACPI: unable to initialize ACPI tables: %s\n", 226 AcpiFormatException(rv)); 227 return 0; 228 } 229 230 rv = AcpiReallocateRootTable(); 231 if (ACPI_FAILURE(rv)) { 232 printf("ACPI: unable to reallocate root table: %s\n", 233 AcpiFormatException(rv)); 234 return 0; 235 } 236 237 #ifdef ACPI_DEBUGGER 238 if (acpi_dbgr & ACPI_DBGR_TABLES) 239 acpi_osd_debugger(); 240 #endif 241 242 rv = AcpiLoadTables(); 243 if (ACPI_FAILURE(rv)) { 244 printf("ACPI: unable to load tables: %s\n", 245 AcpiFormatException(rv)); 246 return 0; 247 } 248 249 rsdt = acpi_map_rsdt(); 250 if (rsdt == NULL) { 251 printf("ACPI: unable to map RSDT\n"); 252 return 0; 253 } 254 255 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 256 printf("ACPI: BIOS implementation in listed as broken:\n"); 257 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 258 "AslId <%4.4s,%08x>\n", 259 rsdt->OemId, rsdt->OemTableId, 260 rsdt->OemRevision, 261 rsdt->AslCompilerId, 262 rsdt->AslCompilerRevision); 263 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 264 acpi_unmap_rsdt(rsdt); 265 return 0; 266 } 267 268 acpi_unmap_rsdt(rsdt); 269 270 #if notyet 271 /* Install the default address space handlers. */ 272 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 273 ACPI_ADR_SPACE_SYSTEM_MEMORY, ACPI_DEFAULT_HANDLER, NULL, NULL); 274 if (ACPI_FAILURE(rv)) { 275 printf("ACPI: unable to initialise SystemMemory handler: %s\n", 276 AcpiFormatException(rv)); 277 return 0; 278 } 279 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 280 ACPI_ADR_SPACE_SYSTEM_IO, ACPI_DEFAULT_HANDLER, NULL, NULL); 281 if (ACPI_FAILURE(rv)) { 282 printf("ACPI: unable to initialise SystemIO handler: %s\n", 283 AcpiFormatException(rv)); 284 return 0; 285 } 286 rv = AcpiInstallAddressSpaceHandler(ACPI_ROOT_OBJECT, 287 ACPI_ADR_SPACE_PCI_CONFIG, ACPI_DEFAULT_HANDLER, NULL, NULL); 288 if (ACPI_FAILURE(rv)) { 289 printf("ACPI: unabled to initialise PciConfig handler: %s\n", 290 AcpiFormatException(rv)); 291 return 0; 292 } 293 #endif 294 295 rv = AcpiEnableSubsystem(~(ACPI_NO_HARDWARE_INIT|ACPI_NO_ACPI_ENABLE)); 296 if (ACPI_FAILURE(rv)) { 297 printf("ACPI: unable to enable: %s\n", AcpiFormatException(rv)); 298 return 0; 299 } 300 301 /* 302 * Looks like we have ACPI! 303 */ 304 305 return 1; 306 } 307 308 static int 309 acpi_submatch(device_t parent, cfdata_t cf, const int *locs, void *aux) 310 { 311 struct cfattach *ca; 312 313 ca = config_cfattach_lookup(cf->cf_name, cf->cf_atname); 314 return (ca == &acpi_ca); 315 } 316 317 int 318 acpi_check(device_t parent, const char *ifattr) 319 { 320 return (config_search_ia(acpi_submatch, parent, ifattr, NULL) != NULL); 321 } 322 323 ACPI_PHYSICAL_ADDRESS 324 acpi_OsGetRootPointer(void) 325 { 326 ACPI_PHYSICAL_ADDRESS PhysicalAddress; 327 328 /* 329 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 330 * 331 * IA-64: Use the EFI. 332 * 333 * We let MD code handle this since there are multiple 334 * ways to do it. 335 */ 336 337 PhysicalAddress = acpi_md_OsGetRootPointer(); 338 339 if (acpi_root_pointer == 0) 340 acpi_root_pointer = PhysicalAddress; 341 342 return PhysicalAddress; 343 } 344 345 /* 346 * acpi_match: 347 * 348 * Autoconfiguration `match' routine. 349 */ 350 static int 351 acpi_match(struct device *parent, struct cfdata *match, 352 void *aux) 353 { 354 /* 355 * XXX Check other locators? Hard to know -- machine 356 * dependent code has already checked for the presence 357 * of ACPI by calling acpi_probe(), so I suppose we 358 * don't really have to do anything else. 359 */ 360 return 1; 361 } 362 363 /* 364 * acpi_attach: 365 * 366 * Autoconfiguration `attach' routine. Finish initializing 367 * ACPICA (some initialization was done in acpi_probe(), 368 * which was required to check for the presence of ACPI), 369 * and enable the ACPI subsystem. 370 */ 371 static void 372 acpi_attach(struct device *parent, struct device *self, void *aux) 373 { 374 struct acpi_softc *sc = (void *) self; 375 struct acpibus_attach_args *aa = aux; 376 ACPI_STATUS rv; 377 ACPI_TABLE_HEADER *rsdt; 378 379 aprint_naive(": Advanced Configuration and Power Interface\n"); 380 aprint_normal(": Advanced Configuration and Power Interface\n"); 381 382 if (acpi_softc != NULL) 383 panic("acpi_attach: ACPI has already been attached"); 384 385 sysmon_power_settype("acpi"); 386 387 aprint_verbose("%s: using Intel ACPI CA subsystem version %08x\n", 388 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 389 390 rsdt = acpi_map_rsdt(); 391 if (rsdt) { 392 aprint_verbose("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 393 sc->sc_dev.dv_xname, 394 rsdt->OemId, rsdt->OemTableId, 395 rsdt->OemRevision, 396 rsdt->AslCompilerId, rsdt->AslCompilerRevision); 397 } else 398 aprint_error("%s: X/RSDT: Not found\n", sc->sc_dev.dv_xname); 399 acpi_unmap_rsdt(rsdt); 400 401 sc->sc_quirks = acpi_find_quirks(); 402 403 sc->sc_iot = aa->aa_iot; 404 sc->sc_memt = aa->aa_memt; 405 sc->sc_pc = aa->aa_pc; 406 sc->sc_pciflags = aa->aa_pciflags; 407 sc->sc_ic = aa->aa_ic; 408 409 acpi_softc = sc; 410 411 /* 412 * Register null power management handler 413 */ 414 if (!pmf_device_register(self, NULL, NULL)) 415 aprint_error_dev(self, "couldn't establish power handler\n"); 416 417 /* 418 * Bring ACPI on-line. 419 */ 420 #ifdef ACPI_DEBUGGER 421 if (acpi_dbgr & ACPI_DBGR_ENABLE) 422 acpi_osd_debugger(); 423 #endif 424 425 #define ACPI_ENABLE_PHASE1 \ 426 (ACPI_NO_HANDLER_INIT | ACPI_NO_EVENT_INIT) 427 #define ACPI_ENABLE_PHASE2 \ 428 (ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE | \ 429 ACPI_NO_ADDRESS_SPACE_INIT) 430 431 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE1); 432 if (ACPI_FAILURE(rv)) { 433 aprint_error("%s: unable to enable ACPI: %s\n", 434 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 435 return; 436 } 437 438 acpi_md_callback(); 439 440 rv = AcpiEnableSubsystem(ACPI_ENABLE_PHASE2); 441 if (ACPI_FAILURE(rv)) { 442 aprint_error("%s: unable to enable ACPI: %s\n", 443 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 444 return; 445 } 446 447 /* early EC handler initialization if ECDT table is available */ 448 config_found_ia(&sc->sc_dev, "acpiecdtbus", NULL, NULL); 449 450 rv = AcpiInitializeObjects(ACPI_FULL_INITIALIZATION); 451 if (ACPI_FAILURE(rv)) { 452 aprint_error("%s: unable to initialize ACPI objects: %s\n", 453 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 454 return; 455 } 456 acpi_active = 1; 457 458 /* Our current state is "awake". */ 459 sc->sc_sleepstate = ACPI_STATE_S0; 460 461 /* Show SCI interrupt. */ 462 aprint_verbose("%s: SCI interrupting at int %d\n", 463 sc->sc_dev.dv_xname, AcpiGbl_FADT.SciInterrupt); 464 465 /* 466 * Check for fixed-hardware features. 467 */ 468 acpi_enable_fixed_events(sc); 469 acpitimer_init(); 470 471 /* 472 * Scan the namespace and build our device tree. 473 */ 474 #ifdef ACPI_DEBUGGER 475 if (acpi_dbgr & ACPI_DBGR_PROBE) 476 acpi_osd_debugger(); 477 #endif 478 acpi_build_tree(sc); 479 480 sprintf(acpi_supported_states, "%s%s%s%s%s%s", 481 is_available_state(sc, ACPI_STATE_S0) ? "S0 " : "", 482 is_available_state(sc, ACPI_STATE_S1) ? "S1 " : "", 483 is_available_state(sc, ACPI_STATE_S2) ? "S2 " : "", 484 is_available_state(sc, ACPI_STATE_S3) ? "S3 " : "", 485 is_available_state(sc, ACPI_STATE_S4) ? "S4 " : "", 486 is_available_state(sc, ACPI_STATE_S5) ? "S5 " : ""); 487 488 /* 489 * Register a shutdown hook that disables certain ACPI 490 * events that might happen and confuse us while we're 491 * trying to shut down. 492 */ 493 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 494 if (sc->sc_sdhook == NULL) 495 aprint_error("%s: WARNING: unable to register shutdown hook\n", 496 sc->sc_dev.dv_xname); 497 498 #ifdef ACPI_DEBUGGER 499 if (acpi_dbgr & ACPI_DBGR_RUNNING) 500 acpi_osd_debugger(); 501 #endif 502 } 503 504 /* 505 * acpi_shutdown: 506 * 507 * Shutdown hook for ACPI -- disable some events that 508 * might confuse us. 509 */ 510 static void 511 acpi_shutdown(void *arg) 512 { 513 /* nothing */ 514 } 515 516 #if 0 517 /* 518 * acpi_disable: 519 * 520 * Disable ACPI. 521 */ 522 static ACPI_STATUS 523 acpi_disable(struct acpi_softc *sc) 524 { 525 ACPI_STATUS rv = AE_OK; 526 527 if (acpi_active) { 528 rv = AcpiDisable(); 529 if (ACPI_SUCCESS(rv)) 530 acpi_active = 0; 531 } 532 return rv; 533 } 534 #endif 535 536 struct acpi_make_devnode_state { 537 struct acpi_softc *softc; 538 struct acpi_scope *scope; 539 }; 540 541 /* 542 * acpi_build_tree: 543 * 544 * Scan relevant portions of the ACPI namespace and attach 545 * child devices. 546 */ 547 static void 548 acpi_build_tree(struct acpi_softc *sc) 549 { 550 static const char *scopes[] = { 551 "\\_PR_", /* ACPI 1.0 processor namespace */ 552 "\\_SB_", /* system bus namespace */ 553 "\\_SI_", /* system indicator namespace */ 554 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 555 NULL, 556 }; 557 struct acpi_attach_args aa; 558 struct acpi_make_devnode_state state; 559 struct acpi_scope *as; 560 struct acpi_devnode *ad; 561 ACPI_HANDLE parent; 562 ACPI_STATUS rv; 563 int i; 564 565 TAILQ_INIT(&sc->sc_scopes); 566 567 state.softc = sc; 568 569 /* 570 * Scan the namespace and build our tree. 571 */ 572 for (i = 0; scopes[i] != NULL; i++) { 573 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 574 as->as_name = scopes[i]; 575 TAILQ_INIT(&as->as_devnodes); 576 577 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 578 579 state.scope = as; 580 581 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 582 &parent); 583 if (ACPI_SUCCESS(rv)) { 584 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 585 acpi_make_devnode, &state, NULL); 586 } 587 588 /* Now, for this namespace, try and attach the devices. */ 589 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 590 aa.aa_node = ad; 591 aa.aa_iot = sc->sc_iot; 592 aa.aa_memt = sc->sc_memt; 593 aa.aa_pc = sc->sc_pc; 594 aa.aa_pciflags = sc->sc_pciflags; 595 aa.aa_ic = sc->sc_ic; 596 597 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 598 /* 599 * XXX We only attach devices which are: 600 * 601 * - present 602 * - enabled 603 * - functioning properly 604 * 605 * However, if enabled, it's decoding resources, 606 * so we should claim them, if possible. 607 * Requires changes to bus_space(9). 608 */ 609 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 610 ACPI_VALID_STA && 611 (ad->ad_devinfo->CurrentStatus & 612 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 613 ACPI_STA_DEV_OK)) != 614 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 615 ACPI_STA_DEV_OK)) 616 continue; 617 } 618 619 /* 620 * XXX Same problem as above... 621 * 622 * Do this check only for devices, as e.g. 623 * a Thermal Zone doesn't have a HID. 624 */ 625 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE && 626 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 627 continue; 628 629 ad->ad_device = config_found_ia(&sc->sc_dev, 630 "acpinodebus", &aa, acpi_print); 631 } 632 } 633 config_found_ia(&sc->sc_dev, "acpiapmbus", NULL, NULL); 634 } 635 636 #ifdef ACPI_ACTIVATE_DEV 637 static void 638 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 639 { 640 ACPI_STATUS rv; 641 ACPI_BUFFER buf; 642 643 buf.Pointer = NULL; 644 buf.Length = ACPI_ALLOCATE_BUFFER; 645 646 #ifdef ACPI_DEBUG 647 aprint_normal("acpi_activate_device: %s, old status=%x\n", 648 (*di)->HardwareId.Value, (*di)->CurrentStatus); 649 #endif 650 651 rv = acpi_allocate_resources(handle); 652 if (ACPI_FAILURE(rv)) { 653 aprint_error("acpi: activate failed for %s\n", 654 (*di)->HardwareId.Value); 655 } else { 656 aprint_verbose("acpi: activated %s\n", 657 (*di)->HardwareId.Value); 658 } 659 660 (void)AcpiGetObjectInfo(handle, &buf); 661 AcpiOsFree(*di); 662 *di = buf.Pointer; 663 664 #ifdef ACPI_DEBUG 665 aprint_normal("acpi_activate_device: %s, new status=%x\n", 666 (*di)->HardwareId.Value, (*di)->CurrentStatus); 667 #endif 668 } 669 #endif /* ACPI_ACTIVATE_DEV */ 670 671 /* 672 * acpi_make_devnode: 673 * 674 * Make an ACPI devnode. 675 */ 676 static ACPI_STATUS 677 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 678 void **status) 679 { 680 struct acpi_make_devnode_state *state = context; 681 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 682 struct acpi_softc *sc = state->softc; 683 #endif 684 struct acpi_scope *as = state->scope; 685 struct acpi_devnode *ad; 686 ACPI_OBJECT_TYPE type; 687 ACPI_BUFFER buf; 688 ACPI_DEVICE_INFO *devinfo; 689 ACPI_STATUS rv; 690 ACPI_NAME_UNION *anu; 691 int i, clear = 0; 692 693 rv = AcpiGetType(handle, &type); 694 if (ACPI_SUCCESS(rv)) { 695 buf.Pointer = NULL; 696 buf.Length = ACPI_ALLOCATE_BUFFER; 697 rv = AcpiGetObjectInfo(handle, &buf); 698 if (ACPI_FAILURE(rv)) { 699 #ifdef ACPI_DEBUG 700 aprint_normal("%s: AcpiGetObjectInfo failed: %s\n", 701 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 702 #endif 703 goto out; /* XXX why return OK */ 704 } 705 706 devinfo = buf.Pointer; 707 708 switch (type) { 709 case ACPI_TYPE_DEVICE: 710 #ifdef ACPI_ACTIVATE_DEV 711 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 712 (ACPI_VALID_STA|ACPI_VALID_HID) && 713 (devinfo->CurrentStatus & 714 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 715 ACPI_STA_DEV_PRESENT) 716 acpi_activate_device(handle, &devinfo); 717 718 /* FALLTHROUGH */ 719 #endif 720 721 case ACPI_TYPE_PROCESSOR: 722 case ACPI_TYPE_THERMAL: 723 case ACPI_TYPE_POWER: 724 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 725 if (ad == NULL) 726 return AE_NO_MEMORY; 727 728 ad->ad_devinfo = devinfo; 729 ad->ad_handle = handle; 730 ad->ad_level = level; 731 ad->ad_scope = as; 732 ad->ad_type = type; 733 734 anu = (ACPI_NAME_UNION *)&devinfo->Name; 735 ad->ad_name[4] = '\0'; 736 for (i = 3, clear = 0; i >= 0; i--) { 737 if (!clear && anu->Ascii[i] == '_') 738 ad->ad_name[i] = '\0'; 739 else { 740 ad->ad_name[i] = anu->Ascii[i]; 741 clear = 1; 742 } 743 } 744 if (ad->ad_name[0] == '\0') 745 ad->ad_name[0] = '_'; 746 747 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 748 749 if (type == ACPI_TYPE_DEVICE && 750 (ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 751 goto out; 752 753 #ifdef ACPI_EXTRA_DEBUG 754 aprint_normal("%s: HID %s found in scope %s level %d\n", 755 sc->sc_dev.dv_xname, 756 ad->ad_devinfo->HardwareId.Value, 757 as->as_name, ad->ad_level); 758 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 759 aprint_normal(" UID %s\n", 760 ad->ad_devinfo->UniqueId.Value); 761 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 762 aprint_normal(" ADR 0x%016qx\n", 763 ad->ad_devinfo->Address); 764 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 765 aprint_normal(" STA 0x%08x\n", 766 ad->ad_devinfo->CurrentStatus); 767 #endif 768 } 769 } 770 out: 771 return AE_OK; 772 } 773 774 /* 775 * acpi_print: 776 * 777 * Autoconfiguration print routine for ACPI node bus. 778 */ 779 static int 780 acpi_print(void *aux, const char *pnp) 781 { 782 struct acpi_attach_args *aa = aux; 783 ACPI_STATUS rv; 784 785 if (pnp) { 786 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 787 char *pnpstr = 788 aa->aa_node->ad_devinfo->HardwareId.Value; 789 char *str; 790 791 aprint_normal("%s (%s) ", aa->aa_node->ad_name, 792 pnpstr); 793 rv = acpi_eval_string(aa->aa_node->ad_handle, 794 "_STR", &str); 795 if (ACPI_SUCCESS(rv)) { 796 aprint_normal("[%s] ", str); 797 AcpiOsFree(str); 798 } 799 #ifdef ACPIVERBOSE 800 else { 801 int i; 802 803 for (i = 0; i < sizeof(acpi_knowndevs) / 804 sizeof(acpi_knowndevs[0]); i++) { 805 if (strcmp(acpi_knowndevs[i].pnp, 806 pnpstr) == 0) { 807 aprint_normal("[%s] ", 808 acpi_knowndevs[i].str); 809 } 810 } 811 } 812 813 #endif 814 aprint_normal("at %s", pnp); 815 } else if (aa->aa_node->ad_devinfo->Type != ACPI_TYPE_DEVICE) { 816 aprint_normal("%s (ACPI Object Type '%s' " 817 "[0x%02x]) ", aa->aa_node->ad_name, 818 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 819 aa->aa_node->ad_devinfo->Type); 820 aprint_normal("at %s", pnp); 821 } else 822 return 0; 823 } else { 824 aprint_normal(" (%s", aa->aa_node->ad_name); 825 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 826 aprint_normal(", %s", aa->aa_node->ad_devinfo->HardwareId.Value); 827 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 828 const char *uid; 829 830 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 831 if (uid[0] == '\0') 832 uid = "<null>"; 833 aprint_normal("-%s", uid); 834 } 835 } 836 aprint_normal(")"); 837 } 838 839 return UNCONF; 840 } 841 842 /***************************************************************************** 843 * ACPI fixed-hardware feature handlers 844 *****************************************************************************/ 845 846 static UINT32 acpi_fixed_button_handler(void *); 847 static void acpi_fixed_button_pressed(void *); 848 849 /* 850 * acpi_enable_fixed_events: 851 * 852 * Enable any fixed-hardware feature handlers. 853 */ 854 static void 855 acpi_enable_fixed_events(struct acpi_softc *sc) 856 { 857 static int beenhere; 858 ACPI_STATUS rv; 859 860 KASSERT(beenhere == 0); 861 beenhere = 1; 862 863 /* 864 * Check for fixed-hardware buttons. 865 */ 866 867 if ((AcpiGbl_FADT.Flags & ACPI_FADT_POWER_BUTTON) == 0) { 868 aprint_verbose("%s: fixed-feature power button present\n", 869 sc->sc_dev.dv_xname); 870 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 871 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 872 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 873 aprint_error("%s: unable to register fixed power " 874 "button with sysmon\n", sc->sc_dev.dv_xname); 875 } else { 876 rv = AcpiInstallFixedEventHandler( 877 ACPI_EVENT_POWER_BUTTON, 878 acpi_fixed_button_handler, &sc->sc_smpsw_power); 879 if (ACPI_FAILURE(rv)) { 880 aprint_error("%s: unable to install handler " 881 "for fixed power button: %s\n", 882 sc->sc_dev.dv_xname, 883 AcpiFormatException(rv)); 884 } 885 } 886 } 887 888 if ((AcpiGbl_FADT.Flags & ACPI_FADT_SLEEP_BUTTON) == 0) { 889 aprint_verbose("%s: fixed-feature sleep button present\n", 890 sc->sc_dev.dv_xname); 891 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 892 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 893 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 894 aprint_error("%s: unable to register fixed sleep " 895 "button with sysmon\n", sc->sc_dev.dv_xname); 896 } else { 897 rv = AcpiInstallFixedEventHandler( 898 ACPI_EVENT_SLEEP_BUTTON, 899 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 900 if (ACPI_FAILURE(rv)) { 901 aprint_error("%s: unable to install handler " 902 "for fixed sleep button: %s\n", 903 sc->sc_dev.dv_xname, 904 AcpiFormatException(rv)); 905 } 906 } 907 } 908 } 909 910 /* 911 * acpi_fixed_button_handler: 912 * 913 * Event handler for the fixed buttons. 914 */ 915 static UINT32 916 acpi_fixed_button_handler(void *context) 917 { 918 struct sysmon_pswitch *smpsw = context; 919 int rv; 920 921 #ifdef ACPI_BUT_DEBUG 922 printf("%s: fixed button handler\n", smpsw->smpsw_name); 923 #endif 924 925 rv = AcpiOsExecute(OSL_NOTIFY_HANDLER, 926 acpi_fixed_button_pressed, smpsw); 927 if (ACPI_FAILURE(rv)) 928 printf("%s: WARNING: unable to queue fixed button pressed " 929 "callback: %s\n", smpsw->smpsw_name, 930 AcpiFormatException(rv)); 931 932 return ACPI_INTERRUPT_HANDLED; 933 } 934 935 /* 936 * acpi_fixed_button_pressed: 937 * 938 * Deal with a fixed button being pressed. 939 */ 940 static void 941 acpi_fixed_button_pressed(void *context) 942 { 943 struct sysmon_pswitch *smpsw = context; 944 945 #ifdef ACPI_BUT_DEBUG 946 printf("%s: fixed button pressed, calling sysmon\n", 947 smpsw->smpsw_name); 948 #endif 949 950 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 951 } 952 953 /***************************************************************************** 954 * ACPI utility routines. 955 *****************************************************************************/ 956 957 /* 958 * acpi_eval_integer: 959 * 960 * Evaluate an integer object. 961 */ 962 ACPI_STATUS 963 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 964 { 965 ACPI_STATUS rv; 966 ACPI_BUFFER buf; 967 ACPI_OBJECT param; 968 969 if (handle == NULL) 970 handle = ACPI_ROOT_OBJECT; 971 972 buf.Pointer = ¶m; 973 buf.Length = sizeof(param); 974 975 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 976 if (ACPI_SUCCESS(rv)) 977 *valp = param.Integer.Value; 978 979 return rv; 980 } 981 982 /* 983 * acpi_eval_string: 984 * 985 * Evaluate a (Unicode) string object. 986 */ 987 ACPI_STATUS 988 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 989 { 990 ACPI_STATUS rv; 991 ACPI_BUFFER buf; 992 993 if (handle == NULL) 994 handle = ACPI_ROOT_OBJECT; 995 996 buf.Pointer = NULL; 997 buf.Length = ACPI_ALLOCATE_BUFFER; 998 999 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 1000 if (ACPI_SUCCESS(rv)) { 1001 ACPI_OBJECT *param = buf.Pointer; 1002 const char *ptr = param->String.Pointer; 1003 size_t len = param->String.Length; 1004 if ((*stringp = AcpiOsAllocate(len)) == NULL) 1005 rv = AE_NO_MEMORY; 1006 else 1007 (void)memcpy(*stringp, ptr, len); 1008 AcpiOsFree(param); 1009 } 1010 1011 return rv; 1012 } 1013 1014 1015 /* 1016 * acpi_eval_struct: 1017 * 1018 * Evaluate a more complex structure. 1019 * Caller must free buf.Pointer by AcpiOsFree(). 1020 */ 1021 ACPI_STATUS 1022 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 1023 { 1024 ACPI_STATUS rv; 1025 1026 if (handle == NULL) 1027 handle = ACPI_ROOT_OBJECT; 1028 1029 bufp->Pointer = NULL; 1030 bufp->Length = ACPI_ALLOCATE_BUFFER; 1031 1032 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 1033 1034 return rv; 1035 } 1036 1037 /* 1038 * acpi_foreach_package_object: 1039 * 1040 * Iterate over all objects in a in a packages and pass then all 1041 * to a function. If the called function returns non AE_OK, the 1042 * iteration is stopped and that value is returned. 1043 */ 1044 1045 ACPI_STATUS 1046 acpi_foreach_package_object(ACPI_OBJECT *pkg, 1047 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 1048 void *arg) 1049 { 1050 ACPI_STATUS rv = AE_OK; 1051 int i; 1052 1053 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 1054 return AE_BAD_PARAMETER; 1055 1056 for (i = 0; i < pkg->Package.Count; i++) { 1057 rv = (*func)(&pkg->Package.Elements[i], arg); 1058 if (ACPI_FAILURE(rv)) 1059 break; 1060 } 1061 1062 return rv; 1063 } 1064 1065 const char * 1066 acpi_name(ACPI_HANDLE handle) 1067 { 1068 static char buffer[80]; 1069 ACPI_BUFFER buf; 1070 ACPI_STATUS rv; 1071 1072 buf.Length = sizeof(buffer); 1073 buf.Pointer = buffer; 1074 1075 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 1076 if (ACPI_FAILURE(rv)) 1077 return "(unknown acpi path)"; 1078 return buffer; 1079 } 1080 1081 /* 1082 * acpi_get: 1083 * 1084 * Fetch data info the specified (empty) ACPI buffer. 1085 * Caller must free buf.Pointer by AcpiOsFree(). 1086 */ 1087 ACPI_STATUS 1088 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 1089 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 1090 { 1091 buf->Pointer = NULL; 1092 buf->Length = ACPI_ALLOCATE_BUFFER; 1093 1094 return (*getit)(handle, buf); 1095 } 1096 1097 1098 /* 1099 * acpi_match_hid 1100 * 1101 * Match given ids against _HID and _CIDs 1102 */ 1103 int 1104 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 1105 { 1106 int i; 1107 1108 while (*ids) { 1109 if (ad->Valid & ACPI_VALID_HID) { 1110 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 1111 return 1; 1112 } 1113 1114 if (ad->Valid & ACPI_VALID_CID) { 1115 for (i = 0; i < ad->CompatibilityId.Count; i++) { 1116 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 1117 return 1; 1118 } 1119 } 1120 ids++; 1121 } 1122 1123 return 0; 1124 } 1125 1126 /* 1127 * acpi_set_wake_gpe 1128 * 1129 * Set GPE as both Runtime and Wake 1130 */ 1131 void 1132 acpi_set_wake_gpe(ACPI_HANDLE handle) 1133 { 1134 ACPI_BUFFER buf; 1135 ACPI_STATUS rv; 1136 ACPI_OBJECT *p, *elt; 1137 1138 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1139 if (ACPI_FAILURE(rv)) 1140 return; /* just ignore */ 1141 1142 p = buf.Pointer; 1143 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1144 goto out; /* just ignore */ 1145 1146 elt = p->Package.Elements; 1147 1148 /* TBD: package support */ 1149 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1150 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1151 1152 out: 1153 AcpiOsFree(buf.Pointer); 1154 } 1155 1156 1157 /***************************************************************************** 1158 * ACPI sleep support. 1159 *****************************************************************************/ 1160 1161 static int 1162 is_available_state(struct acpi_softc *sc, int state) 1163 { 1164 UINT8 type_a, type_b; 1165 1166 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1167 &type_a, &type_b)); 1168 } 1169 1170 /* 1171 * acpi_enter_sleep_state: 1172 * 1173 * enter to the specified sleep state. 1174 */ 1175 1176 ACPI_STATUS 1177 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1178 { 1179 int err; 1180 ACPI_STATUS ret = AE_OK; 1181 1182 if (state == acpi_sleepstate) 1183 return AE_OK; 1184 1185 aprint_normal("%s: entering state %d\n", sc->sc_dev.dv_xname, state); 1186 1187 switch (state) { 1188 case ACPI_STATE_S0: 1189 break; 1190 case ACPI_STATE_S1: 1191 case ACPI_STATE_S2: 1192 case ACPI_STATE_S3: 1193 case ACPI_STATE_S4: 1194 if (!is_available_state(sc, state)) { 1195 aprint_error("%s: cannot enter the sleep state (%d)\n", 1196 sc->sc_dev.dv_xname, state); 1197 break; 1198 } 1199 1200 if (state != ACPI_STATE_S1 && !pmf_system_suspend()) { 1201 aprint_error_dev(&sc->sc_dev, "aborting suspend\n"); 1202 break; 1203 } 1204 1205 ret = AcpiEnterSleepStatePrep(state); 1206 if (ACPI_FAILURE(ret)) { 1207 aprint_error("%s: failed preparing to sleep (%s)\n", 1208 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1209 break; 1210 } 1211 1212 acpi_sleepstate = state; 1213 if (state == ACPI_STATE_S1) { 1214 /* just enter the state */ 1215 acpi_md_OsDisableInterrupt(); 1216 AcpiEnterSleepState((UINT8)state); 1217 AcpiLeaveSleepState((UINT8)state); 1218 } else { 1219 err = acpi_md_sleep(state); 1220 if (state == ACPI_STATE_S4) 1221 AcpiEnable(); 1222 pmf_system_bus_resume(); 1223 AcpiLeaveSleepState((UINT8)state); 1224 pmf_system_resume(); 1225 } 1226 1227 break; 1228 case ACPI_STATE_S5: 1229 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1230 if (ACPI_FAILURE(ret)) { 1231 aprint_error("%s: failed preparing to sleep (%s)\n", 1232 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1233 break; 1234 } 1235 DELAY(1000000); 1236 acpi_sleepstate = state; 1237 acpi_md_OsDisableInterrupt(); 1238 AcpiEnterSleepState(ACPI_STATE_S5); 1239 aprint_error("%s: WARNING powerdown failed!\n", 1240 sc->sc_dev.dv_xname); 1241 break; 1242 } 1243 1244 acpi_sleepstate = ACPI_STATE_S0; 1245 return ret; 1246 } 1247 1248 #if defined(ACPI_ACTIVATE_DEV) 1249 /* XXX This very incomplete */ 1250 ACPI_STATUS 1251 acpi_allocate_resources(ACPI_HANDLE handle) 1252 { 1253 ACPI_BUFFER bufp, bufc, bufn; 1254 ACPI_RESOURCE *resp, *resc, *resn; 1255 ACPI_RESOURCE_IRQ *irq; 1256 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1257 ACPI_STATUS rv; 1258 uint delta; 1259 1260 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1261 if (ACPI_FAILURE(rv)) 1262 goto out; 1263 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1264 if (ACPI_FAILURE(rv)) { 1265 goto out1; 1266 } 1267 1268 bufn.Length = 1000; 1269 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1270 resp = bufp.Pointer; 1271 resc = bufc.Pointer; 1272 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1273 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1274 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1275 resp = ACPI_NEXT_RESOURCE(resp); 1276 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1277 break; 1278 /* Found identical Id */ 1279 resn->Type = resc->Type; 1280 switch (resc->Type) { 1281 case ACPI_RESOURCE_TYPE_IRQ: 1282 memcpy(&resn->Data, &resp->Data, 1283 sizeof(ACPI_RESOURCE_IRQ)); 1284 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1285 irq->Interrupts[0] = 1286 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1287 Interrupts[irq->InterruptCount-1]; 1288 irq->InterruptCount = 1; 1289 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1290 break; 1291 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1292 memcpy(&resn->Data, &resp->Data, 1293 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1294 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1295 #if 0 1296 /* 1297 * XXX not duplicating the interrupt logic above 1298 * because its not clear what it accomplishes. 1299 */ 1300 xirq->Interrupts[0] = 1301 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1302 Interrupts[irq->NumberOfInterrupts-1]; 1303 xirq->NumberOfInterrupts = 1; 1304 #endif 1305 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1306 break; 1307 case ACPI_RESOURCE_TYPE_IO: 1308 memcpy(&resn->Data, &resp->Data, 1309 sizeof(ACPI_RESOURCE_IO)); 1310 resn->Length = resp->Length; 1311 break; 1312 default: 1313 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1314 rv = AE_BAD_DATA; 1315 goto out2; 1316 } 1317 resc = ACPI_NEXT_RESOURCE(resc); 1318 resn = ACPI_NEXT_RESOURCE(resn); 1319 resp = ACPI_NEXT_RESOURCE(resp); 1320 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1321 if (delta >= 1322 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1323 bufn.Length *= 2; 1324 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1325 M_ACPI, M_WAITOK); 1326 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1327 } 1328 } 1329 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1330 printf("acpi_allocate_resources: resc not exhausted\n"); 1331 rv = AE_BAD_DATA; 1332 goto out3; 1333 } 1334 1335 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1336 rv = AcpiSetCurrentResources(handle, &bufn); 1337 if (ACPI_FAILURE(rv)) { 1338 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1339 AcpiFormatException(rv)); 1340 } 1341 1342 out3: 1343 free(bufn.Pointer, M_ACPI); 1344 out2: 1345 AcpiOsFree(bufc.Pointer); 1346 out1: 1347 AcpiOsFree(bufp.Pointer); 1348 out: 1349 return rv; 1350 } 1351 #endif /* ACPI_ACTIVATE_DEV */ 1352 1353 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1354 { 1355 const struct sysctlnode *node; 1356 const struct sysctlnode *ssnode; 1357 1358 if (sysctl_createv(clog, 0, NULL, NULL, 1359 CTLFLAG_PERMANENT, 1360 CTLTYPE_NODE, "hw", NULL, 1361 NULL, 0, NULL, 0, 1362 CTL_HW, CTL_EOL) != 0) 1363 return; 1364 1365 if (sysctl_createv(clog, 0, NULL, &node, 1366 CTLFLAG_PERMANENT, 1367 CTLTYPE_NODE, "acpi", NULL, 1368 NULL, 0, NULL, 0, 1369 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1370 return; 1371 1372 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1373 CTLTYPE_QUAD, "root", 1374 SYSCTL_DESCR("ACPI root pointer"), 1375 NULL, 0, &acpi_root_pointer, sizeof(acpi_root_pointer), 1376 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1377 sysctl_createv(NULL, 0, NULL, NULL, CTLFLAG_READONLY, 1378 CTLTYPE_STRING, "supported_states", 1379 SYSCTL_DESCR("Supported ACPI system states"), 1380 NULL, 0, acpi_supported_states, 0, 1381 CTL_HW, node->sysctl_num, CTL_CREATE, CTL_EOL); 1382 1383 /* ACPI sleepstate sysctl */ 1384 if (sysctl_createv(NULL, 0, NULL, &node, 1385 CTLFLAG_PERMANENT, 1386 CTLTYPE_NODE, "machdep", NULL, 1387 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1388 return; 1389 if (sysctl_createv(NULL, 0, &node, &ssnode, 1390 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1391 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1392 CTL_EOL) != 0) 1393 return; 1394 } 1395 1396 static int 1397 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1398 { 1399 int error, t; 1400 struct sysctlnode node; 1401 1402 node = *rnode; 1403 t = acpi_sleepstate; 1404 node.sysctl_data = &t; 1405 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1406 if (error || newp == NULL) 1407 return error; 1408 1409 if (acpi_softc == NULL) 1410 return ENOSYS; 1411 1412 acpi_enter_sleep_state(acpi_softc, t); 1413 1414 return 0; 1415 } 1416 1417 static ACPI_TABLE_HEADER * 1418 acpi_map_rsdt(void) 1419 { 1420 ACPI_PHYSICAL_ADDRESS paddr; 1421 ACPI_TABLE_RSDP *rsdp; 1422 1423 paddr = AcpiOsGetRootPointer(); 1424 if (paddr == 0) { 1425 printf("ACPI: couldn't get root pointer\n"); 1426 return NULL; 1427 } 1428 rsdp = AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_RSDP)); 1429 if (rsdp == NULL) { 1430 printf("ACPI: couldn't map RSDP\n"); 1431 return NULL; 1432 } 1433 if (rsdp->Revision > 1 && rsdp->XsdtPhysicalAddress) 1434 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->XsdtPhysicalAddress; 1435 else 1436 paddr = (ACPI_PHYSICAL_ADDRESS)rsdp->RsdtPhysicalAddress; 1437 AcpiOsUnmapMemory(rsdp, sizeof(ACPI_TABLE_RSDP)); 1438 1439 return AcpiOsMapMemory(paddr, sizeof(ACPI_TABLE_HEADER)); 1440 } 1441 1442 static void 1443 acpi_unmap_rsdt(ACPI_TABLE_HEADER *rsdt) 1444 { 1445 if (rsdt == NULL) 1446 return; 1447 1448 AcpiOsUnmapMemory(rsdt, sizeof(ACPI_TABLE_HEADER)); 1449 } 1450