1 /*- 2 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org> 3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org> 4 * Copyright (c) 2000 BSDi 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/dev/acpica/acpivar.h,v 1.108.8.1 2009/04/15 03:14:26 kensmith Exp $ 29 */ 30 31 #ifndef _ACPIVAR_H_ 32 #define _ACPIVAR_H_ 33 34 #ifdef _KERNEL 35 36 37 #include "acpi_if.h" 38 #include "bus_if.h" 39 #include <sys/eventhandler.h> 40 #include <sys/sysctl.h> 41 #include <sys/lock.h> 42 #include <sys/bus.h> 43 #include <sys/spinlock.h> 44 #include <sys/spinlock2.h> 45 #include <sys/serialize.h> 46 #include <contrib/dev/acpica/source/include/acmacros.h> 47 #include <contrib/dev/acpica/source/include/acconfig.h> 48 #include <contrib/dev/acpica/source/include/aclocal.h> 49 #include <contrib/dev/acpica/source/include/acobject.h> 50 #include <contrib/dev/acpica/source/include/acstruct.h> 51 #include <contrib/dev/acpica/source/include/acutils.h> 52 53 struct apm_clone_data; 54 struct acpi_softc { 55 device_t acpi_dev; 56 cdev_t acpi_dev_t; 57 58 struct resource *acpi_irq; 59 int acpi_irq_rid; 60 void *acpi_irq_handle; 61 62 int acpi_enabled; 63 int acpi_sstate; 64 int acpi_sleep_disabled; 65 66 struct sysctl_ctx_list acpi_sysctl_ctx; 67 struct sysctl_oid *acpi_sysctl_tree; 68 int acpi_power_button_sx; 69 int acpi_sleep_button_sx; 70 int acpi_lid_switch_sx; 71 72 int acpi_standby_sx; 73 int acpi_suspend_sx; 74 75 int acpi_sleep_delay; 76 int acpi_s4bios; 77 int acpi_do_disable; 78 int acpi_verbose; 79 int acpi_handle_reboot; 80 81 bus_dma_tag_t acpi_waketag; 82 bus_dmamap_t acpi_wakemap; 83 vm_offset_t acpi_wakeaddr; 84 vm_paddr_t acpi_wakephys; 85 86 int acpi_next_sstate; /* Next suspend Sx state. */ 87 struct apm_clone_data *acpi_clone; /* Pseudo-dev for devd(8). */ 88 STAILQ_HEAD(,apm_clone_data) apm_cdevs; /* All apm/apmctl/acpi cdevs. */ 89 struct callout susp_force_to; /* Force suspend if no acks. */ 90 }; 91 92 struct acpi_device { 93 /* ACPI ivars */ 94 ACPI_HANDLE ad_handle; 95 uintptr_t ad_magic; 96 void *ad_private; 97 int ad_flags; 98 int ad_recheck; /* Should re-check presence. */ 99 100 /* Resources */ 101 struct resource_list ad_rl; 102 }; 103 104 /* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */ 105 struct apm_clone_data { 106 STAILQ_ENTRY(apm_clone_data) entries; 107 struct cdev *cdev; 108 int flags; 109 #define ACPI_EVF_NONE 0 /* /dev/apm semantics */ 110 #define ACPI_EVF_DEVD 1 /* /dev/acpi is handled via devd(8) */ 111 #define ACPI_EVF_WRITE 2 /* Device instance is opened writable. */ 112 int notify_status; 113 #define APM_EV_NONE 0 /* Device not yet aware of pending sleep. */ 114 #define APM_EV_NOTIFIED 1 /* Device saw next sleep state. */ 115 #define APM_EV_ACKED 2 /* Device agreed sleep can occur. */ 116 struct acpi_softc *acpi_sc; 117 }; 118 119 #define ACPI_PRW_MAX_POWERRES 8 120 121 struct acpi_prw_data { 122 ACPI_HANDLE gpe_handle; 123 int gpe_bit; 124 int lowest_wake; 125 ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES]; 126 int power_res_count; 127 }; 128 129 /* Flags for each device defined in the AML namespace. */ 130 #define ACPI_FLAG_WAKE_ENABLED 0x1 131 132 /* Macros for extracting parts of a PCI address from an _ADR value. */ 133 #define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16) 134 #define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff) 135 136 /* 137 * Entry points to ACPI from above are global functions defined in this 138 * file, sysctls, and I/O on the control device. Entry points from below 139 * are interrupts (the SCI), notifies, task queue threads, and the thermal 140 * zone polling thread. 141 * 142 * ACPI tables and global shared data are protected by a global lock 143 * (acpi_lock). 144 * 145 * Each ACPI device can have its own driver-specific mutex for protecting 146 * shared access to local data. The ACPI_LOCK macros handle mutexes. 147 * 148 * Drivers that need to serialize access to functions (e.g., to route 149 * interrupts, get/set control paths, etc.) should use the sx lock macros 150 * (ACPI_SERIAL). 151 * 152 * ACPICA handles its own locking and should not be called with locks held. 153 * 154 * The most complicated path is: 155 * GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE 156 */ 157 extern struct lock acpi_lock; 158 extern struct lwkt_token acpi_token; 159 /* acpi_thermal does lock recurs on purpose */ 160 /* I bet I should use some other locks here */ 161 #define ACPI_LOCK(sys) lockmgr(&sys##_lock, LK_EXCLUSIVE|LK_RETRY|LK_CANRECURSE) 162 #define ACPI_UNLOCK(sys) lockmgr(&sys##_lock, LK_RELEASE) 163 #define ACPI_LOCK_ASSERT(sys) KKASSERT(lockstatus(&sys##_lock, curthread) == LK_EXCLUSIVE) 164 #define ACPI_ASSERTLOCK ACPI_LOCK_ASSERT 165 #define ACPI_LOCK_DECL(sys, name) static struct lock sys##_lock 166 #define ACPI_LOCK_INIT(sys, name) lockinit(&sys##_lock, name, 0, 0) 167 168 #define ACPI_SERIAL_INIT(sys) lockinit(&sys##_serial, #sys, 0, 0) 169 #define ACPI_SERIAL_BEGIN(sys) lockmgr(&sys##_serial, LK_EXCLUSIVE|LK_RETRY) 170 #define ACPI_SERIAL_END(sys) lockmgr(&sys##_serial, LK_RELEASE) 171 #define ACPI_SERIAL_ASSERT(sys) KKASSERT(lockstatus(&sys##_serial, curthread) == LK_EXCLUSIVE) 172 #define ACPI_SERIAL_DECL(sys, name) static struct lock sys##_serial 173 174 /* 175 * ACPICA does not define layers for non-ACPICA drivers. 176 * We define some here within the range provided. 177 */ 178 #define ACPI_AC_ADAPTER 0x00010000 179 #define ACPI_BATTERY 0x00020000 180 #define ACPI_BUS 0x00040000 181 #define ACPI_BUTTON 0x00080000 182 #define ACPI_EC 0x00100000 183 #define ACPI_FAN 0x00200000 184 #define ACPI_POWERRES 0x00400000 185 #define ACPI_PROCESSOR 0x00800000 186 #define ACPI_THERMAL 0x01000000 187 #define ACPI_TIMER 0x02000000 188 #define ACPI_OEM 0x04000000 189 190 /* 191 * Constants for different interrupt models used with acpi_SetIntrModel(). 192 */ 193 #define ACPI_INTR_PIC 0 194 #define ACPI_INTR_APIC 1 195 #define ACPI_INTR_SAPIC 2 196 197 /* 198 * Various features and capabilities for the acpi_get_features() method. 199 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods. 200 * See the Intel document titled "Intel Processor Vendor-Specific ACPI", 201 * number 302223-005. 202 */ 203 #define ACPI_PDC_PX_MSR (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */ 204 #define ACPI_PDC_MP_C1_IO_HALT (1 << 1) /* Intel C1 "IO then halt" sequence */ 205 #define ACPI_PDC_TX_MSR (1 << 2) /* Intel OnDemand throttling MSRs */ 206 #define ACPI_PDC_MP_C1PXTX (1 << 3) /* MP C1, Px, and Tx */ 207 #define ACPI_PDC_MP_C2C3 (1 << 4) /* MP C2 and C3 */ 208 #define ACPI_PDC_MP_PX_SWCOORD (1 << 5) /* MP Px, using _PSD */ 209 #define ACPI_PDC_MP_CX_SWCOORD (1 << 6) /* MP Cx, using _CSD */ 210 #define ACPI_PDC_MP_TX_SWCOORD (1 << 7) /* MP Tx, using _TSD */ 211 #define ACPI_PDC_MP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */ 212 #define ACPI_PDC_MP_C2C3_NATIVE (1 << 9) /* MP C2 and C3 support */ 213 #define ACPI_PDC_PX_HWCOORD (1 << 11)/* Hardware coordination of Px */ 214 215 #define ACPI_OSC_QUERY_SUPPORT (1 << 0) /* Query Support Flag */ 216 217 #define ACPI_OSCERR_OSCFAIL (1 << 1) /* _OSC failure */ 218 #define ACPI_OSCERR_UUID (1 << 2) /* Unrecognized UUID */ 219 #define ACPI_OSCERR_REVISION (1 << 3) /* Unrecognized revision ID */ 220 #define ACPI_OSCERR_CAPSMASKED (1 << 4) /* Capabilities have been cleared */ 221 #define ACPI_OSCERR_MASK 0x0000001e 222 223 /* 224 * Quirk flags. 225 * 226 * ACPI_Q_BROKEN: Disables all ACPI support. 227 * ACPI_Q_TIMER: Disables support for the ACPI timer. 228 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the 229 * first APIC and that the MADT should force that by ignoring the PC-AT 230 * compatible flag and ignoring overrides that redirect IRQ 0 to pin 2. 231 * ACPI_Q_BATT_RATE_ABS: Specifies that the DSDT reports a negative 16-bit 232 * value for charging/discharging current and/or 0 as 65536. 233 */ 234 extern int acpi_quirks; 235 #define ACPI_Q_OK 0 236 #define ACPI_Q_BROKEN (1 << 0) 237 #define ACPI_Q_TIMER (1 << 1) 238 #define ACPI_Q_MADT_IRQ0 (1 << 2) 239 #define ACPI_Q_BATT_RATE_ABS (1 << 3) 240 241 /* 242 * Note that the low ivar values are reserved to provide 243 * interface compatibility with ISA drivers which can also 244 * attach to ACPI. 245 */ 246 #define ACPI_IVAR_HANDLE 0x100 247 #define ACPI_IVAR_MAGIC 0x101 248 #define ACPI_IVAR_PRIVATE 0x102 249 #define ACPI_IVAR_FLAGS 0x103 250 #define ACPI_IVAR_RECHECK 0x104 251 252 /* 253 * Accessor functions for our ivars. Default value for BUS_READ_IVAR is 254 * (type) 0. The <sys/bus.h> accessor functions don't check return values. 255 */ 256 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \ 257 \ 258 static __inline type varp ## _get_ ## var(device_t dev) \ 259 { \ 260 uintptr_t v = 0; \ 261 BUS_READ_IVAR(device_get_parent(dev), dev, \ 262 ivarp ## _IVAR_ ## ivar, &v); \ 263 return ((type) v); \ 264 } \ 265 \ 266 static __inline void varp ## _set_ ## var(device_t dev, type t) \ 267 { \ 268 uintptr_t v = (uintptr_t) t; \ 269 BUS_WRITE_IVAR(device_get_parent(dev), dev, \ 270 ivarp ## _IVAR_ ## ivar, v); \ 271 } 272 273 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE) 274 __ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, uintptr_t) 275 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *) 276 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int) 277 __ACPI_BUS_ACCESSOR(acpi, recheck, ACPI, RECHECK, int) 278 279 void acpi_fake_objhandler(ACPI_HANDLE h, void *data); 280 static __inline device_t 281 acpi_get_device(ACPI_HANDLE handle) 282 { 283 void *dev = NULL; 284 AcpiGetData(handle, acpi_fake_objhandler, &dev); 285 return ((device_t)dev); 286 } 287 288 static __inline ACPI_OBJECT_TYPE 289 acpi_get_type(device_t dev) 290 { 291 ACPI_HANDLE h; 292 ACPI_OBJECT_TYPE t; 293 294 if ((h = acpi_get_handle(dev)) == NULL) 295 return (ACPI_TYPE_NOT_FOUND); 296 if (ACPI_FAILURE(AcpiGetType(h, &t))) 297 return (ACPI_TYPE_NOT_FOUND); 298 return (t); 299 } 300 301 /* Find the difference between two PM tick counts. */ 302 static __inline uint32_t 303 acpi_TimerDelta(uint32_t end, uint32_t start) 304 { 305 306 if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0) 307 end |= 0x01000000; 308 return (end - start); 309 } 310 311 #ifdef ACPI_DEBUG 312 #include <sys/cons.h> 313 #define STEP(x) do {printf x, printf("\n"); cngetc();} while (0) 314 #else 315 #define STEP(x) 316 #endif 317 318 #define ACPI_VPRINT(dev, acpi_sc, x...) do { \ 319 if (acpi_get_verbose(acpi_sc)) \ 320 device_printf(dev, x); \ 321 } while (0) 322 323 /* Values for the device _STA (status) method. */ 324 #define ACPI_STA_PRESENT (1 << 0) 325 #define ACPI_STA_ENABLED (1 << 1) 326 #define ACPI_STA_SHOW_IN_UI (1 << 2) 327 #define ACPI_STA_FUNCTIONAL (1 << 3) 328 #define ACPI_STA_BATT_PRESENT (1 << 4) 329 330 #define ACPI_DEVINFO_PRESENT(x, flags) \ 331 (((x) & (flags)) == (flags)) 332 #define ACPI_DEVICE_PRESENT(x) \ 333 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL) 334 #define ACPI_BATTERY_PRESENT(x) \ 335 ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \ 336 ACPI_STA_BATT_PRESENT) 337 338 BOOLEAN acpi_DeviceIsPresent(device_t dev); 339 BOOLEAN acpi_BatteryIsPresent(device_t dev); 340 ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path, 341 ACPI_HANDLE *result); 342 ACPI_BUFFER *acpi_AllocBuffer(int size); 343 ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp, 344 UINT32 *number); 345 ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path, 346 UINT32 *number); 347 ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path, 348 UINT32 number); 349 ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj, 350 void (*func)(ACPI_OBJECT *comp, void *arg), void *arg); 351 ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index, 352 ACPI_RESOURCE **resp); 353 ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf, 354 ACPI_RESOURCE *res); 355 ACPI_STATUS acpi_SetIntrModel(int model); 356 int acpi_ReqSleepState(struct acpi_softc *sc, int state); 357 int acpi_AckSleepState(struct apm_clone_data *clone, int error); 358 ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state); 359 int acpi_wake_set_enable(device_t dev, int enable); 360 int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw); 361 ACPI_STATUS acpi_Startup(void); 362 void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h, 363 uint8_t notify); 364 int acpi_bus_alloc_gas(device_t dev, int *type, int *rid, 365 ACPI_GENERIC_ADDRESS *gas, struct resource **res, 366 u_int flags); 367 ACPI_STATUS acpi_eval_osc(device_t dev, ACPI_HANDLE handle, 368 const char *uuidstr, int revision, uint32_t *buf, 369 int count); 370 371 struct acpi_parse_resource_set { 372 void (*set_init)(device_t dev, void *arg, void **context); 373 void (*set_done)(device_t dev, void *context); 374 void (*set_ioport)(device_t dev, void *context, uint64_t base, 375 uint64_t length); 376 void (*set_iorange)(device_t dev, void *context, uint64_t low, 377 uint64_t high, uint64_t length, uint64_t align); 378 void (*set_memory)(device_t dev, void *context, uint64_t base, 379 uint64_t length); 380 void (*set_memoryrange)(device_t dev, void *context, uint64_t low, 381 uint64_t high, uint64_t length, uint64_t align); 382 void (*set_irq)(device_t dev, void *context, uint8_t *irq, 383 int count, int trig, int pol); 384 void (*set_ext_irq)(device_t dev, void *context, uint32_t *irq, 385 int count, int trig, int pol); 386 void (*set_drq)(device_t dev, void *context, uint8_t *drq, 387 int count); 388 void (*set_start_dependent)(device_t dev, void *context, 389 int preference); 390 void (*set_end_dependent)(device_t dev, void *context); 391 }; 392 393 extern struct acpi_parse_resource_set acpi_res_parse_set; 394 395 void acpi_config_intr(device_t dev, ACPI_RESOURCE *res); 396 ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid, 397 struct resource *res, ACPI_RESOURCE *acpi_res); 398 ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle, 399 struct acpi_parse_resource_set *set, void *arg); 400 401 /* ACPI event handling */ 402 UINT32 acpi_event_power_button_sleep(void *context); 403 UINT32 acpi_event_power_button_wake(void *context); 404 UINT32 acpi_event_sleep_button_sleep(void *context); 405 UINT32 acpi_event_sleep_button_wake(void *context); 406 407 #define ACPI_EVENT_PRI_FIRST 0 408 #define ACPI_EVENT_PRI_DEFAULT 10000 409 #define ACPI_EVENT_PRI_LAST 20000 410 411 typedef void (*acpi_event_handler_t)(void *, int); 412 413 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t); 414 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t); 415 416 /* Device power control. */ 417 ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable); 418 ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state); 419 420 /* Misc. */ 421 static __inline struct acpi_softc * 422 acpi_device_get_parent_softc(device_t child) 423 { 424 device_t parent; 425 426 parent = device_get_parent(child); 427 if (parent == NULL) 428 return (NULL); 429 return (device_get_softc(parent)); 430 } 431 432 static __inline int 433 acpi_get_verbose(struct acpi_softc *sc) 434 { 435 if (sc) 436 return (sc->acpi_verbose); 437 return (0); 438 } 439 440 char *acpi_name(ACPI_HANDLE handle); 441 int acpi_avoid(ACPI_HANDLE handle); 442 int acpi_disabled(char *subsys); 443 int acpi_enabled(char *subsys); 444 int acpi_machdep_init(device_t dev); 445 void acpi_install_wakeup_handler(struct acpi_softc *sc); 446 int acpi_sleep_machdep(struct acpi_softc *sc, int state); 447 int acpi_table_quirks(int *quirks); 448 int acpi_machdep_quirks(int *quirks); 449 450 /* Battery Abstraction. */ 451 struct acpi_battinfo; 452 453 int acpi_battery_register(device_t dev); 454 int acpi_battery_remove(device_t dev); 455 int acpi_battery_get_units(void); 456 int acpi_battery_get_info_expire(void); 457 int acpi_battery_bst_valid(struct acpi_bst *bst); 458 int acpi_battery_bif_valid(struct acpi_bif *bif); 459 int acpi_battery_get_battinfo(device_t dev, 460 struct acpi_battinfo *info); 461 462 /* Embedded controller. */ 463 void acpi_ec_ecdt_probe(device_t); 464 465 /* AC adapter interface. */ 466 int acpi_acad_get_acline(int *); 467 468 /* Package manipulation convenience functions. */ 469 #define ACPI_PKG_VALID(pkg, size) \ 470 ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \ 471 (pkg)->Package.Count >= (size)) 472 #define ACPI_PKG_VALID_EQ(pkg, size) \ 473 (ACPI_PKG_VALID((pkg), (size)) && (pkg)->Package.Count == (size)) 474 int acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst); 475 int acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst); 476 int acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size); 477 int acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type, 478 int *rid, struct resource **dst, u_int flags); 479 int acpi_PkgRawGas(ACPI_OBJECT *res, int idx, 480 ACPI_GENERIC_ADDRESS *gas); 481 ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj); 482 /* ACPI task kernel thread initialization. */ 483 int acpi_task_thread_init(void); 484 void acpi_task_thread_schedule(void); 485 extern BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid); 486 extern BOOLEAN acpi_MatchUid(ACPI_HANDLE h, const char *uid); 487 /* 488 * Base level for BUS_ADD_CHILD. Special devices are added at orders less 489 * than this, and normal devices at or above this level. This keeps the 490 * probe order sorted so that things like sysresource are available before 491 * their children need them. 492 */ 493 #define ACPI_DEV_BASE_ORDER 10 494 495 /* Default number of task queue threads to start. */ 496 #ifndef ACPI_MAX_THREADS 497 #define ACPI_MAX_THREADS 3 498 #endif 499 500 SYSCTL_DECL(_debug_acpi); 501 502 #endif /* _KERNEL */ 503 #endif /* !_ACPIVAR_H_ */ 504