1 /* $NetBSD: acpi.c,v 1.97 2006/11/16 01:32:47 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum of By Noon Software, Inc. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright 2001, 2003 Wasabi Systems, Inc. 41 * All rights reserved. 42 * 43 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 44 * 45 * Redistribution and use in source and binary forms, with or without 46 * modification, are permitted provided that the following conditions 47 * are met: 48 * 1. Redistributions of source code must retain the above copyright 49 * notice, this list of conditions and the following disclaimer. 50 * 2. Redistributions in binary form must reproduce the above copyright 51 * notice, this list of conditions and the following disclaimer in the 52 * documentation and/or other materials provided with the distribution. 53 * 3. All advertising materials mentioning features or use of this software 54 * must display the following acknowledgement: 55 * This product includes software developed for the NetBSD Project by 56 * Wasabi Systems, Inc. 57 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 58 * or promote products derived from this software without specific prior 59 * written permission. 60 * 61 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 62 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 63 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 64 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 65 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 66 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 67 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 68 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 69 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 70 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 71 * POSSIBILITY OF SUCH DAMAGE. 72 */ 73 74 /* 75 * Autoconfiguration support for the Intel ACPI Component Architecture 76 * ACPI reference implementation. 77 */ 78 79 #include <sys/cdefs.h> 80 __KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.97 2006/11/16 01:32:47 christos Exp $"); 81 82 #include "opt_acpi.h" 83 #include "opt_pcifixup.h" 84 85 #include <sys/param.h> 86 #include <sys/systm.h> 87 #include <sys/device.h> 88 #include <sys/malloc.h> 89 #include <sys/kernel.h> 90 #include <sys/proc.h> 91 #include <sys/sysctl.h> 92 93 #include <dev/acpi/acpica.h> 94 #include <dev/acpi/acpireg.h> 95 #include <dev/acpi/acpivar.h> 96 #include <dev/acpi/acpi_osd.h> 97 #include <dev/acpi/acpi_timer.h> 98 #ifdef ACPIVERBOSE 99 #include <dev/acpi/acpidevs_data.h> 100 #endif 101 102 #if defined(ACPI_PCI_FIXUP) 103 #error The option ACPI_PCI_FIXUP has been obsoleted by PCI_INTR_FIXUP_DISABLED. Please adjust your kernel configuration file. 104 #endif 105 106 #ifdef PCI_INTR_FIXUP_DISABLED 107 #include <dev/pci/pcidevs.h> 108 #endif 109 110 MALLOC_DECLARE(M_ACPI); 111 112 #include <machine/acpi_machdep.h> 113 114 #ifdef ACPI_DEBUGGER 115 #define ACPI_DBGR_INIT 0x01 116 #define ACPI_DBGR_TABLES 0x02 117 #define ACPI_DBGR_ENABLE 0x04 118 #define ACPI_DBGR_PROBE 0x08 119 #define ACPI_DBGR_RUNNING 0x10 120 121 static int acpi_dbgr = 0x00; 122 #endif 123 124 static int acpi_match(struct device *, struct cfdata *, void *); 125 static void acpi_attach(struct device *, struct device *, void *); 126 127 static int acpi_print(void *aux, const char *); 128 129 static int sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS); 130 131 extern struct cfdriver acpi_cd; 132 133 CFATTACH_DECL(acpi, sizeof(struct acpi_softc), 134 acpi_match, acpi_attach, NULL, NULL); 135 136 /* 137 * This is a flag we set when the ACPI subsystem is active. Machine 138 * dependent code may wish to skip other steps (such as attaching 139 * subsystems that ACPI supercedes) when ACPI is active. 140 */ 141 int acpi_active; 142 int acpi_force_load; 143 144 /* 145 * Pointer to the ACPI subsystem's state. There can be only 146 * one ACPI instance. 147 */ 148 struct acpi_softc *acpi_softc; 149 150 /* 151 * Locking stuff. 152 */ 153 static struct simplelock acpi_slock; 154 static int acpi_locked; 155 156 /* 157 * sysctl-related information 158 */ 159 160 static int acpi_node = CTL_EOL; 161 static uint64_t acpi_root_pointer; /* found as hw.acpi.root */ 162 static int acpi_sleepstate = ACPI_STATE_S0; 163 164 /* 165 * Prototypes. 166 */ 167 static void acpi_shutdown(void *); 168 static void acpi_build_tree(struct acpi_softc *); 169 static ACPI_STATUS acpi_make_devnode(ACPI_HANDLE, UINT32, void *, void **); 170 171 static void acpi_enable_fixed_events(struct acpi_softc *); 172 173 /* 174 * acpi_probe: 175 * 176 * Probe for ACPI support. This is called by the 177 * machine-dependent ACPI front-end. All of the 178 * actual work is done by ACPICA. 179 * 180 * NOTE: This is not an autoconfiguration interface function. 181 */ 182 int 183 acpi_probe(void) 184 { 185 static int beenhere; 186 ACPI_STATUS rv; 187 188 if (beenhere != 0) 189 panic("acpi_probe: ACPI has already been probed"); 190 beenhere = 1; 191 192 simple_lock_init(&acpi_slock); 193 acpi_locked = 0; 194 195 /* 196 * Start up ACPICA. 197 */ 198 #ifdef ACPI_DEBUGGER 199 if (acpi_dbgr & ACPI_DBGR_INIT) 200 acpi_osd_debugger(); 201 #endif 202 203 rv = AcpiInitializeSubsystem(); 204 if (ACPI_FAILURE(rv)) { 205 printf("ACPI: unable to initialize ACPICA: %s\n", 206 AcpiFormatException(rv)); 207 return 0; 208 } 209 210 #ifdef ACPI_DEBUGGER 211 if (acpi_dbgr & ACPI_DBGR_TABLES) 212 acpi_osd_debugger(); 213 #endif 214 215 rv = AcpiLoadTables(); 216 if (ACPI_FAILURE(rv)) { 217 printf("ACPI: unable to load tables: %s\n", 218 AcpiFormatException(rv)); 219 return 0; 220 } 221 222 223 if (!acpi_force_load && (acpi_find_quirks() & ACPI_QUIRK_BROKEN)) { 224 printf("ACPI: BIOS implementation in listed as broken:\n"); 225 printf("ACPI: X/RSDT: OemId <%6.6s,%8.8s,%08x>, " 226 "AslId <%4.4s,%08x>\n", 227 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 228 AcpiGbl_XSDT->OemRevision, 229 AcpiGbl_XSDT->AslCompilerId, 230 AcpiGbl_XSDT->AslCompilerRevision); 231 printf("ACPI: not used. set acpi_force_load to use anyway.\n"); 232 return 0; 233 } 234 235 /* 236 * Looks like we have ACPI! 237 */ 238 239 return 1; 240 } 241 242 ACPI_STATUS 243 acpi_OsGetRootPointer(UINT32 Flags, ACPI_POINTER *PhysicalAddress) 244 { 245 ACPI_STATUS rv; 246 247 /* 248 * IA-32: Use AcpiFindRootPointer() to locate the RSDP. 249 * 250 * IA-64: Use the EFI. 251 * 252 * We let MD code handle this since there are multiple 253 * ways to do it. 254 */ 255 256 rv = acpi_md_OsGetRootPointer(Flags, PhysicalAddress); 257 258 if (acpi_root_pointer == 0 && ACPI_SUCCESS(rv)) 259 acpi_root_pointer = 260 (uint64_t)PhysicalAddress->Pointer.Physical; 261 262 return rv; 263 } 264 265 /* 266 * acpi_match: 267 * 268 * Autoconfiguration `match' routine. 269 */ 270 static int 271 acpi_match(struct device *parent, struct cfdata *match, 272 void *aux) 273 { 274 /* 275 * XXX Check other locators? Hard to know -- machine 276 * dependent code has already checked for the presence 277 * of ACPI by calling acpi_probe(), so I suppose we 278 * don't really have to do anything else. 279 */ 280 return 1; 281 } 282 283 /* 284 * acpi_attach: 285 * 286 * Autoconfiguration `attach' routine. Finish initializing 287 * ACPICA (some initialization was done in acpi_probe(), 288 * which was required to check for the presence of ACPI), 289 * and enable the ACPI subsystem. 290 */ 291 static void 292 acpi_attach(struct device *parent, struct device *self, void *aux) 293 { 294 struct acpi_softc *sc = (void *) self; 295 struct acpibus_attach_args *aa = aux; 296 ACPI_STATUS rv; 297 298 aprint_naive(": Advanced Configuration and Power Interface\n"); 299 aprint_normal(": Advanced Configuration and Power Interface\n"); 300 301 if (acpi_softc != NULL) 302 panic("acpi_attach: ACPI has already been attached"); 303 304 sysmon_power_settype("acpi"); 305 306 aprint_verbose("%s: using Intel ACPI CA subsystem version %08x\n", 307 sc->sc_dev.dv_xname, ACPI_CA_VERSION); 308 309 aprint_verbose("%s: X/RSDT: OemId <%6.6s,%8.8s,%08x>, AslId <%4.4s,%08x>\n", 310 sc->sc_dev.dv_xname, 311 AcpiGbl_XSDT->OemId, AcpiGbl_XSDT->OemTableId, 312 AcpiGbl_XSDT->OemRevision, 313 AcpiGbl_XSDT->AslCompilerId, AcpiGbl_XSDT->AslCompilerRevision); 314 315 sc->sc_quirks = acpi_find_quirks(); 316 317 sc->sc_iot = aa->aa_iot; 318 sc->sc_memt = aa->aa_memt; 319 sc->sc_pc = aa->aa_pc; 320 sc->sc_pciflags = aa->aa_pciflags; 321 sc->sc_ic = aa->aa_ic; 322 323 acpi_softc = sc; 324 325 /* 326 * Bring ACPI on-line. 327 */ 328 #ifdef ACPI_DEBUGGER 329 if (acpi_dbgr & ACPI_DBGR_ENABLE) 330 acpi_osd_debugger(); 331 #endif 332 333 rv = AcpiEnableSubsystem(0); 334 if (ACPI_FAILURE(rv)) { 335 aprint_error("%s: unable to enable ACPI: %s\n", 336 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 337 return; 338 } 339 340 /* early EC handler initialization if ECDT table is available */ 341 #if NACPIEC > 0 342 acpiec_early_attach(&sc->sc_dev); 343 #endif 344 345 rv = AcpiInitializeObjects(0); 346 if (ACPI_FAILURE(rv)) { 347 aprint_error("%s: unable to initialize ACPI objects: %s\n", 348 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 349 return; 350 } 351 acpi_active = 1; 352 353 /* Our current state is "awake". */ 354 sc->sc_sleepstate = ACPI_STATE_S0; 355 356 /* Show SCI interrupt. */ 357 if (AcpiGbl_FADT != NULL) 358 aprint_verbose("%s: SCI interrupting at int %d\n", 359 sc->sc_dev.dv_xname, AcpiGbl_FADT->SciInt); 360 /* 361 * Check for fixed-hardware features. 362 */ 363 acpi_enable_fixed_events(sc); 364 acpitimer_init(); 365 366 /* 367 * Scan the namespace and build our device tree. 368 */ 369 #ifdef ACPI_DEBUGGER 370 if (acpi_dbgr & ACPI_DBGR_PROBE) 371 acpi_osd_debugger(); 372 #endif 373 acpi_md_callback((struct device *)sc); 374 acpi_build_tree(sc); 375 376 if (acpi_root_pointer != 0 && acpi_node != CTL_EOL) { 377 (void)sysctl_createv(NULL, 0, NULL, NULL, 378 CTLFLAG_IMMEDIATE, 379 CTLTYPE_QUAD, "root", NULL, NULL, 380 acpi_root_pointer, NULL, 0, 381 CTL_HW, acpi_node, CTL_CREATE, CTL_EOL); 382 } 383 384 385 /* 386 * Register a shutdown hook that disables certain ACPI 387 * events that might happen and confuse us while we're 388 * trying to shut down. 389 */ 390 sc->sc_sdhook = shutdownhook_establish(acpi_shutdown, sc); 391 if (sc->sc_sdhook == NULL) 392 aprint_error("%s: WARNING: unable to register shutdown hook\n", 393 sc->sc_dev.dv_xname); 394 395 #ifdef ACPI_DEBUGGER 396 if (acpi_dbgr & ACPI_DBGR_RUNNING) 397 acpi_osd_debugger(); 398 #endif 399 } 400 401 /* 402 * acpi_shutdown: 403 * 404 * Shutdown hook for ACPI -- disable some events that 405 * might confuse us. 406 */ 407 static void 408 acpi_shutdown(void *arg) 409 { 410 /* nothing */ 411 } 412 413 #if 0 414 /* 415 * acpi_disable: 416 * 417 * Disable ACPI. 418 */ 419 static ACPI_STATUS 420 acpi_disable(struct acpi_softc *sc) 421 { 422 ACPI_STATUS rv = AE_OK; 423 424 if (acpi_active) { 425 rv = AcpiDisable(); 426 if (ACPI_SUCCESS(rv)) 427 acpi_active = 0; 428 } 429 return rv; 430 } 431 #endif 432 433 struct acpi_make_devnode_state { 434 struct acpi_softc *softc; 435 struct acpi_scope *scope; 436 }; 437 438 /* 439 * acpi_build_tree: 440 * 441 * Scan relevant portions of the ACPI namespace and attach 442 * child devices. 443 */ 444 static void 445 acpi_build_tree(struct acpi_softc *sc) 446 { 447 static const char *scopes[] = { 448 "\\_PR_", /* ACPI 1.0 processor namespace */ 449 "\\_SB_", /* system bus namespace */ 450 "\\_SI_", /* system indicator namespace */ 451 "\\_TZ_", /* ACPI 1.0 thermal zone namespace */ 452 NULL, 453 }; 454 struct acpi_attach_args aa; 455 struct acpi_make_devnode_state state; 456 struct acpi_scope *as; 457 struct acpi_devnode *ad; 458 ACPI_HANDLE parent; 459 ACPI_STATUS rv; 460 int i; 461 462 TAILQ_INIT(&sc->sc_scopes); 463 464 state.softc = sc; 465 466 /* 467 * Scan the namespace and build our tree. 468 */ 469 for (i = 0; scopes[i] != NULL; i++) { 470 as = malloc(sizeof(*as), M_ACPI, M_WAITOK); 471 as->as_name = scopes[i]; 472 TAILQ_INIT(&as->as_devnodes); 473 474 TAILQ_INSERT_TAIL(&sc->sc_scopes, as, as_list); 475 476 state.scope = as; 477 478 rv = AcpiGetHandle(ACPI_ROOT_OBJECT, scopes[i], 479 &parent); 480 if (ACPI_SUCCESS(rv)) { 481 AcpiWalkNamespace(ACPI_TYPE_ANY, parent, 100, 482 acpi_make_devnode, &state, NULL); 483 } 484 485 /* Now, for this namespace, try and attach the devices. */ 486 TAILQ_FOREACH(ad, &as->as_devnodes, ad_list) { 487 aa.aa_node = ad; 488 aa.aa_iot = sc->sc_iot; 489 aa.aa_memt = sc->sc_memt; 490 aa.aa_pc = sc->sc_pc; 491 aa.aa_pciflags = sc->sc_pciflags; 492 aa.aa_ic = sc->sc_ic; 493 494 if (ad->ad_devinfo->Type == ACPI_TYPE_DEVICE) { 495 /* 496 * XXX We only attach devices which are: 497 * 498 * - present 499 * - enabled 500 * - functioning properly 501 * 502 * However, if enabled, it's decoding resources, 503 * so we should claim them, if possible. 504 * Requires changes to bus_space(9). 505 */ 506 if ((ad->ad_devinfo->Valid & ACPI_VALID_STA) == 507 ACPI_VALID_STA && 508 (ad->ad_devinfo->CurrentStatus & 509 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 510 ACPI_STA_DEV_OK)) != 511 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED| 512 ACPI_STA_DEV_OK)) 513 continue; 514 515 /* 516 * XXX Same problem as above... 517 */ 518 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) 519 == 0) 520 continue; 521 } 522 523 ad->ad_device = config_found_ia(&sc->sc_dev, 524 "acpinodebus", &aa, acpi_print); 525 } 526 } 527 config_found_ia(&sc->sc_dev, "acpiapmbus", NULL, NULL); 528 } 529 530 #ifdef ACPI_ACTIVATE_DEV 531 static void 532 acpi_activate_device(ACPI_HANDLE handle, ACPI_DEVICE_INFO **di) 533 { 534 ACPI_STATUS rv; 535 ACPI_BUFFER buf; 536 537 buf.Pointer = NULL; 538 buf.Length = ACPI_ALLOCATE_BUFFER; 539 540 #ifdef ACPI_DEBUG 541 aprint_normal("acpi_activate_device: %s, old status=%x\n", 542 (*di)->HardwareId.Value, (*di)->CurrentStatus); 543 #endif 544 545 rv = acpi_allocate_resources(handle); 546 if (ACPI_FAILURE(rv)) { 547 aprint_error("acpi: activate failed for %s\n", 548 (*di)->HardwareId.Value); 549 } else { 550 aprint_normal("acpi: activated %s\n", (*di)->HardwareId.Value); 551 } 552 553 (void)AcpiGetObjectInfo(handle, &buf); 554 AcpiOsFree(*di); 555 *di = buf.Pointer; 556 557 #ifdef ACPI_DEBUG 558 aprint_normal("acpi_activate_device: %s, new status=%x\n", 559 (*di)->HardwareId.Value, (*di)->CurrentStatus); 560 #endif 561 } 562 #endif /* ACPI_ACTIVATE_DEV */ 563 564 /* 565 * acpi_make_devnode: 566 * 567 * Make an ACPI devnode. 568 */ 569 static ACPI_STATUS 570 acpi_make_devnode(ACPI_HANDLE handle, UINT32 level, void *context, 571 void **status) 572 { 573 struct acpi_make_devnode_state *state = context; 574 #if defined(ACPI_DEBUG) || defined(ACPI_EXTRA_DEBUG) 575 struct acpi_softc *sc = state->softc; 576 #endif 577 struct acpi_scope *as = state->scope; 578 struct acpi_devnode *ad; 579 ACPI_OBJECT_TYPE type; 580 ACPI_BUFFER buf; 581 ACPI_DEVICE_INFO *devinfo; 582 ACPI_STATUS rv; 583 584 rv = AcpiGetType(handle, &type); 585 if (ACPI_SUCCESS(rv)) { 586 buf.Pointer = NULL; 587 buf.Length = ACPI_ALLOCATE_BUFFER; 588 rv = AcpiGetObjectInfo(handle, &buf); 589 if (ACPI_FAILURE(rv)) { 590 #ifdef ACPI_DEBUG 591 aprint_normal("%s: AcpiGetObjectInfo failed: %s\n", 592 sc->sc_dev.dv_xname, AcpiFormatException(rv)); 593 #endif 594 goto out; /* XXX why return OK */ 595 } 596 597 devinfo = buf.Pointer; 598 599 switch (type) { 600 case ACPI_TYPE_DEVICE: 601 #ifdef ACPI_ACTIVATE_DEV 602 if ((devinfo->Valid & (ACPI_VALID_STA|ACPI_VALID_HID)) == 603 (ACPI_VALID_STA|ACPI_VALID_HID) && 604 (devinfo->CurrentStatus & 605 (ACPI_STA_DEV_PRESENT|ACPI_STA_DEV_ENABLED)) == 606 ACPI_STA_DEV_PRESENT) 607 acpi_activate_device(handle, &devinfo); 608 609 /* FALLTHROUGH */ 610 #endif 611 612 case ACPI_TYPE_PROCESSOR: 613 case ACPI_TYPE_THERMAL: 614 case ACPI_TYPE_POWER: 615 ad = malloc(sizeof(*ad), M_ACPI, M_NOWAIT|M_ZERO); 616 if (ad == NULL) 617 return AE_NO_MEMORY; 618 619 ad->ad_devinfo = devinfo; 620 ad->ad_handle = handle; 621 ad->ad_level = level; 622 ad->ad_scope = as; 623 ad->ad_type = type; 624 625 TAILQ_INSERT_TAIL(&as->as_devnodes, ad, ad_list); 626 627 if ((ad->ad_devinfo->Valid & ACPI_VALID_HID) == 0) 628 goto out; 629 630 #ifdef ACPI_EXTRA_DEBUG 631 aprint_normal("%s: HID %s found in scope %s level %d\n", 632 sc->sc_dev.dv_xname, 633 ad->ad_devinfo->HardwareId.Value, 634 as->as_name, ad->ad_level); 635 if (ad->ad_devinfo->Valid & ACPI_VALID_UID) 636 aprint_normal(" UID %s\n", 637 ad->ad_devinfo->UniqueId.Value); 638 if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 639 aprint_normal(" ADR 0x%016qx\n", 640 ad->ad_devinfo->Address); 641 if (ad->ad_devinfo->Valid & ACPI_VALID_STA) 642 aprint_normal(" STA 0x%08x\n", 643 ad->ad_devinfo->CurrentStatus); 644 #endif 645 } 646 } 647 out: 648 return AE_OK; 649 } 650 651 /* 652 * acpi_print: 653 * 654 * Autoconfiguration print routine for ACPI node bus. 655 */ 656 static int 657 acpi_print(void *aux, const char *pnp) 658 { 659 struct acpi_attach_args *aa = aux; 660 ACPI_STATUS rv; 661 662 if (pnp) { 663 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 664 char *pnpstr = 665 aa->aa_node->ad_devinfo->HardwareId.Value; 666 char *str; 667 668 aprint_normal("%s ", pnpstr); 669 rv = acpi_eval_string(aa->aa_node->ad_handle, 670 "_STR", &str); 671 if (ACPI_SUCCESS(rv)) { 672 aprint_normal("[%s] ", str); 673 AcpiOsFree(str); 674 } 675 #ifdef ACPIVERBOSE 676 else { 677 int i; 678 679 for (i = 0; i < sizeof(acpi_knowndevs) / 680 sizeof(acpi_knowndevs[0]); i++) { 681 if (strcmp(acpi_knowndevs[i].pnp, 682 pnpstr) == 0) { 683 aprint_normal("[%s] ", 684 acpi_knowndevs[i].str); 685 } 686 } 687 } 688 689 #endif 690 } else { 691 aprint_normal("ACPI Object Type '%s' (0x%02x) ", 692 AcpiUtGetTypeName(aa->aa_node->ad_devinfo->Type), 693 aa->aa_node->ad_devinfo->Type); 694 } 695 aprint_normal("at %s", pnp); 696 } else { 697 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_HID) { 698 aprint_normal(" (%s", aa->aa_node->ad_devinfo->HardwareId.Value); 699 if (aa->aa_node->ad_devinfo->Valid & ACPI_VALID_UID) { 700 const char *uid; 701 702 uid = aa->aa_node->ad_devinfo->UniqueId.Value; 703 if (uid[0] == '\0') 704 uid = "<null>"; 705 aprint_normal("-%s", uid); 706 } 707 aprint_normal(")"); 708 } 709 } 710 711 return UNCONF; 712 } 713 714 /***************************************************************************** 715 * ACPI fixed-hardware feature handlers 716 *****************************************************************************/ 717 718 static UINT32 acpi_fixed_button_handler(void *); 719 static void acpi_fixed_button_pressed(void *); 720 721 /* 722 * acpi_enable_fixed_events: 723 * 724 * Enable any fixed-hardware feature handlers. 725 */ 726 static void 727 acpi_enable_fixed_events(struct acpi_softc *sc) 728 { 729 static int beenhere; 730 ACPI_STATUS rv; 731 732 KASSERT(beenhere == 0); 733 beenhere = 1; 734 735 /* 736 * Check for fixed-hardware buttons. 737 */ 738 739 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->PwrButton == 0) { 740 aprint_normal("%s: fixed-feature power button present\n", 741 sc->sc_dev.dv_xname); 742 sc->sc_smpsw_power.smpsw_name = sc->sc_dev.dv_xname; 743 sc->sc_smpsw_power.smpsw_type = PSWITCH_TYPE_POWER; 744 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 745 aprint_error("%s: unable to register fixed power " 746 "button with sysmon\n", sc->sc_dev.dv_xname); 747 } else { 748 rv = AcpiInstallFixedEventHandler( 749 ACPI_EVENT_POWER_BUTTON, 750 acpi_fixed_button_handler, &sc->sc_smpsw_power); 751 if (ACPI_FAILURE(rv)) { 752 aprint_error("%s: unable to install handler " 753 "for fixed power button: %s\n", 754 sc->sc_dev.dv_xname, 755 AcpiFormatException(rv)); 756 } 757 } 758 } 759 760 if (AcpiGbl_FADT != NULL && AcpiGbl_FADT->SleepButton == 0) { 761 aprint_normal("%s: fixed-feature sleep button present\n", 762 sc->sc_dev.dv_xname); 763 sc->sc_smpsw_sleep.smpsw_name = sc->sc_dev.dv_xname; 764 sc->sc_smpsw_sleep.smpsw_type = PSWITCH_TYPE_SLEEP; 765 if (sysmon_pswitch_register(&sc->sc_smpsw_power) != 0) { 766 aprint_error("%s: unable to register fixed sleep " 767 "button with sysmon\n", sc->sc_dev.dv_xname); 768 } else { 769 rv = AcpiInstallFixedEventHandler( 770 ACPI_EVENT_SLEEP_BUTTON, 771 acpi_fixed_button_handler, &sc->sc_smpsw_sleep); 772 if (ACPI_FAILURE(rv)) { 773 aprint_error("%s: unable to install handler " 774 "for fixed sleep button: %s\n", 775 sc->sc_dev.dv_xname, 776 AcpiFormatException(rv)); 777 } 778 } 779 } 780 } 781 782 /* 783 * acpi_fixed_button_handler: 784 * 785 * Event handler for the fixed buttons. 786 */ 787 static UINT32 788 acpi_fixed_button_handler(void *context) 789 { 790 struct sysmon_pswitch *smpsw = context; 791 int rv; 792 793 #ifdef ACPI_BUT_DEBUG 794 printf("%s: fixed button handler\n", smpsw->smpsw_name); 795 #endif 796 797 rv = AcpiOsQueueForExecution(OSD_PRIORITY_LO, 798 acpi_fixed_button_pressed, smpsw); 799 if (ACPI_FAILURE(rv)) 800 printf("%s: WARNING: unable to queue fixed button pressed " 801 "callback: %s\n", smpsw->smpsw_name, 802 AcpiFormatException(rv)); 803 804 return ACPI_INTERRUPT_HANDLED; 805 } 806 807 /* 808 * acpi_fixed_button_pressed: 809 * 810 * Deal with a fixed button being pressed. 811 */ 812 static void 813 acpi_fixed_button_pressed(void *context) 814 { 815 struct sysmon_pswitch *smpsw = context; 816 817 #ifdef ACPI_BUT_DEBUG 818 printf("%s: fixed button pressed, calling sysmon\n", 819 smpsw->smpsw_name); 820 #endif 821 822 sysmon_pswitch_event(smpsw, PSWITCH_EVENT_PRESSED); 823 } 824 825 /***************************************************************************** 826 * ACPI utility routines. 827 *****************************************************************************/ 828 829 /* 830 * acpi_eval_integer: 831 * 832 * Evaluate an integer object. 833 */ 834 ACPI_STATUS 835 acpi_eval_integer(ACPI_HANDLE handle, const char *path, ACPI_INTEGER *valp) 836 { 837 ACPI_STATUS rv; 838 ACPI_BUFFER buf; 839 ACPI_OBJECT param; 840 841 if (handle == NULL) 842 handle = ACPI_ROOT_OBJECT; 843 844 buf.Pointer = ¶m; 845 buf.Length = sizeof(param); 846 847 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_INTEGER); 848 if (ACPI_SUCCESS(rv)) 849 *valp = param.Integer.Value; 850 851 return rv; 852 } 853 854 /* 855 * acpi_eval_string: 856 * 857 * Evaluate a (Unicode) string object. 858 */ 859 ACPI_STATUS 860 acpi_eval_string(ACPI_HANDLE handle, const char *path, char **stringp) 861 { 862 ACPI_STATUS rv; 863 ACPI_BUFFER buf; 864 865 if (handle == NULL) 866 handle = ACPI_ROOT_OBJECT; 867 868 buf.Pointer = NULL; 869 buf.Length = ACPI_ALLOCATE_BUFFER; 870 871 rv = AcpiEvaluateObjectTyped(handle, path, NULL, &buf, ACPI_TYPE_STRING); 872 if (ACPI_SUCCESS(rv)) { 873 ACPI_OBJECT *param = buf.Pointer; 874 const char *ptr = param->String.Pointer; 875 size_t len = param->String.Length; 876 if ((*stringp = AcpiOsAllocate(len)) == NULL) 877 rv = AE_NO_MEMORY; 878 else 879 (void)memcpy(*stringp, ptr, len); 880 AcpiOsFree(param); 881 } 882 883 return rv; 884 } 885 886 887 /* 888 * acpi_eval_struct: 889 * 890 * Evaluate a more complex structure. 891 * Caller must free buf.Pointer by AcpiOsFree(). 892 */ 893 ACPI_STATUS 894 acpi_eval_struct(ACPI_HANDLE handle, const char *path, ACPI_BUFFER *bufp) 895 { 896 ACPI_STATUS rv; 897 898 if (handle == NULL) 899 handle = ACPI_ROOT_OBJECT; 900 901 bufp->Pointer = NULL; 902 bufp->Length = ACPI_ALLOCATE_BUFFER; 903 904 rv = AcpiEvaluateObject(handle, path, NULL, bufp); 905 906 return rv; 907 } 908 909 /* 910 * acpi_foreach_package_object: 911 * 912 * Iterate over all objects in a in a packages and pass then all 913 * to a function. If the called function returns non AE_OK, the 914 * iteration is stopped and that value is returned. 915 */ 916 917 ACPI_STATUS 918 acpi_foreach_package_object(ACPI_OBJECT *pkg, 919 ACPI_STATUS (*func)(ACPI_OBJECT *, void *), 920 void *arg) 921 { 922 ACPI_STATUS rv = AE_OK; 923 int i; 924 925 if (pkg == NULL || pkg->Type != ACPI_TYPE_PACKAGE) 926 return AE_BAD_PARAMETER; 927 928 for (i = 0; i < pkg->Package.Count; i++) { 929 rv = (*func)(&pkg->Package.Elements[i], arg); 930 if (ACPI_FAILURE(rv)) 931 break; 932 } 933 934 return rv; 935 } 936 937 const char * 938 acpi_name(ACPI_HANDLE handle) 939 { 940 static char buffer[80]; 941 ACPI_BUFFER buf; 942 ACPI_STATUS rv; 943 944 buf.Length = sizeof(buffer); 945 buf.Pointer = buffer; 946 947 rv = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buf); 948 if (ACPI_FAILURE(rv)) 949 return "(unknown acpi path)"; 950 return buffer; 951 } 952 953 /* 954 * acpi_get: 955 * 956 * Fetch data info the specified (empty) ACPI buffer. 957 * Caller must free buf.Pointer by AcpiOsFree(). 958 */ 959 ACPI_STATUS 960 acpi_get(ACPI_HANDLE handle, ACPI_BUFFER *buf, 961 ACPI_STATUS (*getit)(ACPI_HANDLE, ACPI_BUFFER *)) 962 { 963 buf->Pointer = NULL; 964 buf->Length = ACPI_ALLOCATE_BUFFER; 965 966 return (*getit)(handle, buf); 967 } 968 969 970 /* 971 * acpi_match_hid 972 * 973 * Match given ids against _HID and _CIDs 974 */ 975 int 976 acpi_match_hid(ACPI_DEVICE_INFO *ad, const char * const *ids) 977 { 978 int i; 979 980 while (*ids) { 981 if (ad->Valid & ACPI_VALID_HID) { 982 if (pmatch(ad->HardwareId.Value, *ids, NULL) == 2) 983 return 1; 984 } 985 986 if (ad->Valid & ACPI_VALID_CID) { 987 for (i = 0; i < ad->CompatibilityId.Count; i++) { 988 if (pmatch(ad->CompatibilityId.Id[i].Value, *ids, NULL) == 2) 989 return 1; 990 } 991 } 992 ids++; 993 } 994 995 return 0; 996 } 997 998 /* 999 * acpi_set_wake_gpe 1000 * 1001 * Set GPE as both Runtime and Wake 1002 */ 1003 void 1004 acpi_set_wake_gpe(ACPI_HANDLE handle) 1005 { 1006 ACPI_BUFFER buf; 1007 ACPI_STATUS rv; 1008 ACPI_OBJECT *p, *elt; 1009 1010 rv = acpi_eval_struct(handle, METHOD_NAME__PRW, &buf); 1011 if (ACPI_FAILURE(rv)) 1012 return; /* just ignore */ 1013 1014 p = buf.Pointer; 1015 if (p->Type != ACPI_TYPE_PACKAGE || p->Package.Count < 2) 1016 goto out; /* just ignore */ 1017 1018 elt = p->Package.Elements; 1019 1020 /* TBD: package support */ 1021 AcpiSetGpeType(NULL, elt[0].Integer.Value, ACPI_GPE_TYPE_WAKE_RUN); 1022 AcpiEnableGpe(NULL, elt[0].Integer.Value, ACPI_NOT_ISR); 1023 1024 out: 1025 AcpiOsFree(buf.Pointer); 1026 } 1027 1028 1029 /***************************************************************************** 1030 * ACPI sleep support. 1031 *****************************************************************************/ 1032 1033 static int 1034 is_available_state(struct acpi_softc *sc, int state) 1035 { 1036 UINT8 type_a, type_b; 1037 1038 return ACPI_SUCCESS(AcpiGetSleepTypeData((UINT8)state, 1039 &type_a, &type_b)); 1040 } 1041 1042 /* 1043 * acpi_enter_sleep_state: 1044 * 1045 * enter to the specified sleep state. 1046 */ 1047 1048 ACPI_STATUS 1049 acpi_enter_sleep_state(struct acpi_softc *sc, int state) 1050 { 1051 int s; 1052 ACPI_STATUS ret = AE_OK; 1053 1054 if (state == acpi_sleepstate) 1055 return AE_OK; 1056 1057 aprint_normal("%s: entering state %d\n", sc->sc_dev.dv_xname, state); 1058 1059 switch (state) { 1060 case ACPI_STATE_S0: 1061 break; 1062 case ACPI_STATE_S1: 1063 case ACPI_STATE_S2: 1064 case ACPI_STATE_S3: 1065 case ACPI_STATE_S4: 1066 if (!is_available_state(sc, state)) { 1067 aprint_error("%s: cannot enter the sleep state (%d).\n", 1068 sc->sc_dev.dv_xname, state); 1069 break; 1070 } 1071 ret = AcpiEnterSleepStatePrep(state); 1072 if (ACPI_FAILURE(ret)) { 1073 aprint_error("%s: failed preparing to sleep (%s)\n", 1074 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1075 break; 1076 } 1077 acpi_sleepstate = state; 1078 if (state == ACPI_STATE_S1) { 1079 /* just enter the state */ 1080 acpi_md_OsDisableInterrupt(); 1081 AcpiEnterSleepState((UINT8)state); 1082 } else { 1083 /* XXX: powerhooks(9) framework is too poor to 1084 * support ACPI sleep state... 1085 */ 1086 dopowerhooks(PWR_SOFTSUSPEND); 1087 s = splhigh(); 1088 dopowerhooks(PWR_SUSPEND); 1089 acpi_md_sleep(state); 1090 dopowerhooks(PWR_RESUME); 1091 splx(s); 1092 dopowerhooks(PWR_SOFTRESUME); 1093 if (state==ACPI_STATE_S4) 1094 AcpiEnable(); 1095 } 1096 AcpiLeaveSleepState((UINT8)state); 1097 break; 1098 case ACPI_STATE_S5: 1099 ret = AcpiEnterSleepStatePrep(ACPI_STATE_S5); 1100 if (ACPI_FAILURE(ret)) { 1101 aprint_error("%s: failed preparing to sleep (%s)\n", 1102 sc->sc_dev.dv_xname, AcpiFormatException(ret)); 1103 break; 1104 } 1105 acpi_sleepstate = state; 1106 acpi_md_OsDisableInterrupt(); 1107 AcpiEnterSleepState(ACPI_STATE_S5); 1108 aprint_error("%s: WARNING powerdown failed!\n", 1109 sc->sc_dev.dv_xname); 1110 break; 1111 } 1112 1113 aprint_normal("%s: resuming\n", sc->sc_dev.dv_xname); 1114 acpi_sleepstate = ACPI_STATE_S0; 1115 return ret; 1116 } 1117 1118 #if defined(ACPI_ACTIVATE_DEV) 1119 /* XXX This very incomplete */ 1120 ACPI_STATUS 1121 acpi_allocate_resources(ACPI_HANDLE handle) 1122 { 1123 ACPI_BUFFER bufp, bufc, bufn; 1124 ACPI_RESOURCE *resp, *resc, *resn; 1125 ACPI_RESOURCE_IRQ *irq; 1126 ACPI_RESOURCE_EXTENDED_IRQ *xirq; 1127 ACPI_STATUS rv; 1128 uint delta; 1129 1130 rv = acpi_get(handle, &bufp, AcpiGetPossibleResources); 1131 if (ACPI_FAILURE(rv)) 1132 goto out; 1133 rv = acpi_get(handle, &bufc, AcpiGetCurrentResources); 1134 if (ACPI_FAILURE(rv)) { 1135 goto out1; 1136 } 1137 1138 bufn.Length = 1000; 1139 bufn.Pointer = resn = malloc(bufn.Length, M_ACPI, M_WAITOK); 1140 resp = bufp.Pointer; 1141 resc = bufc.Pointer; 1142 while (resc->Type != ACPI_RESOURCE_TYPE_END_TAG && 1143 resp->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1144 while (resc->Type != resp->Type && resp->Type != ACPI_RESOURCE_TYPE_END_TAG) 1145 resp = ACPI_NEXT_RESOURCE(resp); 1146 if (resp->Type == ACPI_RESOURCE_TYPE_END_TAG) 1147 break; 1148 /* Found identical Id */ 1149 resn->Type = resc->Type; 1150 switch (resc->Type) { 1151 case ACPI_RESOURCE_TYPE_IRQ: 1152 memcpy(&resn->Data, &resp->Data, 1153 sizeof(ACPI_RESOURCE_IRQ)); 1154 irq = (ACPI_RESOURCE_IRQ *)&resn->Data; 1155 irq->Interrupts[0] = 1156 ((ACPI_RESOURCE_IRQ *)&resp->Data)-> 1157 Interrupts[irq->InterruptCount-1]; 1158 irq->InterruptCount = 1; 1159 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_IRQ); 1160 break; 1161 case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: 1162 memcpy(&resn->Data, &resp->Data, 1163 sizeof(ACPI_RESOURCE_EXTENDED_IRQ)); 1164 xirq = (ACPI_RESOURCE_EXTENDED_IRQ *)&resn->Data; 1165 #if 0 1166 /* 1167 * XXX not duplicating the interrupt logic above 1168 * because its not clear what it accomplishes. 1169 */ 1170 xirq->Interrupts[0] = 1171 ((ACPI_RESOURCE_EXT_IRQ *)&resp->Data)-> 1172 Interrupts[irq->NumberOfInterrupts-1]; 1173 xirq->NumberOfInterrupts = 1; 1174 #endif 1175 resn->Length = ACPI_RS_SIZE(ACPI_RESOURCE_EXTENDED_IRQ); 1176 break; 1177 case ACPI_RESOURCE_TYPE_IO: 1178 memcpy(&resn->Data, &resp->Data, 1179 sizeof(ACPI_RESOURCE_IO)); 1180 resn->Length = resp->Length; 1181 break; 1182 default: 1183 printf("acpi_allocate_resources: res=%d\n", resc->Type); 1184 rv = AE_BAD_DATA; 1185 goto out2; 1186 } 1187 resc = ACPI_NEXT_RESOURCE(resc); 1188 resn = ACPI_NEXT_RESOURCE(resn); 1189 resp = ACPI_NEXT_RESOURCE(resp); 1190 delta = (UINT8 *)resn - (UINT8 *)bufn.Pointer; 1191 if (delta >= 1192 bufn.Length-ACPI_RS_SIZE(ACPI_RESOURCE_DATA)) { 1193 bufn.Length *= 2; 1194 bufn.Pointer = realloc(bufn.Pointer, bufn.Length, 1195 M_ACPI, M_WAITOK); 1196 resn = (ACPI_RESOURCE *)((UINT8 *)bufn.Pointer + delta); 1197 } 1198 } 1199 if (resc->Type != ACPI_RESOURCE_TYPE_END_TAG) { 1200 printf("acpi_allocate_resources: resc not exhausted\n"); 1201 rv = AE_BAD_DATA; 1202 goto out3; 1203 } 1204 1205 resn->Type = ACPI_RESOURCE_TYPE_END_TAG; 1206 rv = AcpiSetCurrentResources(handle, &bufn); 1207 if (ACPI_FAILURE(rv)) { 1208 printf("acpi_allocate_resources: AcpiSetCurrentResources %s\n", 1209 AcpiFormatException(rv)); 1210 } 1211 1212 out3: 1213 free(bufn.Pointer, M_ACPI); 1214 out2: 1215 AcpiOsFree(bufc.Pointer); 1216 out1: 1217 AcpiOsFree(bufp.Pointer); 1218 out: 1219 return rv; 1220 } 1221 #endif /* ACPI_ACTIVATE_DEV */ 1222 1223 SYSCTL_SETUP(sysctl_acpi_setup, "sysctl hw.acpi subtree setup") 1224 { 1225 const struct sysctlnode *node; 1226 const struct sysctlnode *ssnode; 1227 1228 if (sysctl_createv(clog, 0, NULL, NULL, 1229 CTLFLAG_PERMANENT, 1230 CTLTYPE_NODE, "hw", NULL, 1231 NULL, 0, NULL, 0, 1232 CTL_HW, CTL_EOL) != 0) 1233 return; 1234 1235 if (sysctl_createv(clog, 0, NULL, &node, 1236 CTLFLAG_PERMANENT, 1237 CTLTYPE_NODE, "acpi", NULL, 1238 NULL, 0, NULL, 0, 1239 CTL_HW, CTL_CREATE, CTL_EOL) != 0) 1240 return; 1241 1242 acpi_node = node->sysctl_num; 1243 1244 /* ACPI sleepstate sysctl */ 1245 if (sysctl_createv(NULL, 0, NULL, &node, 1246 CTLFLAG_PERMANENT, 1247 CTLTYPE_NODE, "machdep", NULL, 1248 NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL) != 0) 1249 return; 1250 if (sysctl_createv(NULL, 0, &node, &ssnode, 1251 CTLFLAG_READWRITE, CTLTYPE_INT, "sleep_state", 1252 NULL, sysctl_hw_acpi_sleepstate, 0, NULL, 0, CTL_CREATE, 1253 CTL_EOL) != 0) 1254 return; 1255 } 1256 1257 static int 1258 sysctl_hw_acpi_sleepstate(SYSCTLFN_ARGS) 1259 { 1260 int error, t; 1261 struct sysctlnode node; 1262 1263 node = *rnode; 1264 t = acpi_sleepstate; 1265 node.sysctl_data = &t; 1266 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1267 if (error || newp == NULL) 1268 return error; 1269 1270 if (acpi_softc == NULL) 1271 return ENOSYS; 1272 1273 acpi_enter_sleep_state(acpi_softc, t); 1274 1275 return 0; 1276 } 1277