sys/dev/acpica/acpivar.h

   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
  99     /* Resources */
 100     struct resource_list        ad_rl;
 101 };
 102
 103 /* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */
 104 struct apm_clone_data {
 105     STAILQ_ENTRY(apm_clone_data) entries;
 106     struct cdev         *cdev;
 107     int                 flags;
 108 #define ACPI_EVF_NONE   0       /* /dev/apm semantics */
 109 #define ACPI_EVF_DEVD   1       /* /dev/acpi is handled via devd(8) */
 110 #define ACPI_EVF_WRITE  2       /* Device instance is opened writable. */
 111     int                 notify_status;
 112 #define APM_EV_NONE     0       /* Device not yet aware of pending sleep. */
 113 #define APM_EV_NOTIFIED 1       /* Device saw next sleep state. */
 114 #define APM_EV_ACKED    2       /* Device agreed sleep can occur. */
 115     struct acpi_softc   *acpi_sc;
 116 };
 117
 118 #define ACPI_PRW_MAX_POWERRES   8
 119
 120 struct acpi_prw_data {
 121     ACPI_HANDLE         gpe_handle;
 122     int                 gpe_bit;
 123     int                 lowest_wake;
 124     ACPI_OBJECT         power_res[ACPI_PRW_MAX_POWERRES];
 125     int                 power_res_count;
 126 };
 127
 128 /* Flags for each device defined in the AML namespace. */
 129 #define ACPI_FLAG_WAKE_ENABLED  0x1
 130
 131 /* Macros for extracting parts of a PCI address from an _ADR value. */
 132 #define ACPI_ADR_PCI_SLOT(adr)  (((adr) & 0xffff0000) >> 16)
 133 #define ACPI_ADR_PCI_FUNC(adr)  ((adr) & 0xffff)
 134
 135 /*
 136  * Entry points to ACPI from above are global functions defined in this
 137  * file, sysctls, and I/O on the control device.  Entry points from below
 138  * are interrupts (the SCI), notifies, task queue threads, and the thermal
 139  * zone polling thread.
 140  *
 141  * ACPI tables and global shared data are protected by a global lock
 142  * (acpi_lock).
 143  *
 144  * Each ACPI device can have its own driver-specific mutex for protecting
 145  * shared access to local data.  The ACPI_LOCK macros handle mutexes.
 146  *
 147  * Drivers that need to serialize access to functions (e.g., to route
 148  * interrupts, get/set control paths, etc.) should use the sx lock macros
 149  * (ACPI_SERIAL).
 150  *
 151  * ACPICA handles its own locking and should not be called with locks held.
 152  *
 153  * The most complicated path is:
 154  *     GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
 155  */
 156 extern struct lock acpi_lock;
 157 /* acpi_thermal does lock recurs on purpose */
 158 /* I bet I should use some other locks here */
 159 #define ACPI_LOCK(sys)                  lockmgr(&sys##_lock, LK_EXCLUSIVE|LK_RETRY|LK_CANRECURSE)
 160 #define ACPI_UNLOCK(sys)                lockmgr(&sys##_lock, LK_RELEASE)
 161 #define ACPI_LOCK_ASSERT(sys)           KKASSERT(lockstatus(&sys##_lock, curthread) == LK_EXCLUSIVE)
 162 #define ACPI_ASSERTLOCK ACPI_LOCK_ASSERT
 163 #define ACPI_LOCK_DECL(sys, name)       static struct lock sys##_lock
 164 #define ACPI_LOCK_INIT(sys, name)       lockinit(&sys##_lock, name, 0, 0)
 165
 166 #define ACPI_SERIAL_INIT(sys)           lockinit(&sys##_serial, #sys, 0, 0)
 167 #define ACPI_SERIAL_BEGIN(sys)          lockmgr(&sys##_serial, LK_EXCLUSIVE|LK_RETRY)
 168 #define ACPI_SERIAL_END(sys)            lockmgr(&sys##_serial, LK_RELEASE)
 169 #define ACPI_SERIAL_ASSERT(sys)         KKASSERT(lockstatus(&sys##_serial, curthread) == LK_EXCLUSIVE)
 170 #define ACPI_SERIAL_DECL(sys, name)     static struct lock sys##_serial
 171
 172 /*
 173  * ACPICA does not define layers for non-ACPICA drivers.
 174  * We define some here within the range provided.
 175  */
 176 #define ACPI_AC_ADAPTER         0x00010000
 177 #define ACPI_BATTERY            0x00020000
 178 #define ACPI_BUS                0x00040000
 179 #define ACPI_BUTTON             0x00080000
 180 #define ACPI_EC                 0x00100000
 181 #define ACPI_FAN                0x00200000
 182 #define ACPI_POWERRES           0x00400000
 183 #define ACPI_PROCESSOR          0x00800000
 184 #define ACPI_THERMAL            0x01000000
 185 #define ACPI_TIMER              0x02000000
 186 #define ACPI_OEM                0x04000000
 187
 188 /*
 189  * Constants for different interrupt models used with acpi_SetIntrModel().
 190  */
 191 #define ACPI_INTR_PIC           0
 192 #define ACPI_INTR_APIC          1
 193 #define ACPI_INTR_SAPIC         2
 194
 195 /*
 196  * Various features and capabilities for the acpi_get_features() method.
 197  * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
 198  * See the Intel document titled "Intel Processor Vendor-Specific ACPI",
 199  * number 302223-005.
 200  */
 201 #define ACPI_PDC_PX_MSR         (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
 202 #define ACPI_PDC_MP_C1_IO_HALT  (1 << 1) /* Intel C1 "IO then halt" sequence */
 203 #define ACPI_PDC_TX_MSR         (1 << 2) /* Intel OnDemand throttling MSRs */
 204 #define ACPI_PDC_MP_C1PXTX      (1 << 3) /* MP C1, Px, and Tx */
 205 #define ACPI_PDC_MP_C2C3        (1 << 4) /* MP C2 and C3 */
 206 #define ACPI_PDC_MP_PX_SWCOORD  (1 << 5) /* MP Px, using _PSD */
 207 #define ACPI_PDC_MP_CX_SWCOORD  (1 << 6) /* MP Cx, using _CSD */
 208 #define ACPI_PDC_MP_TX_SWCOORD  (1 << 7) /* MP Tx, using _TSD */
 209 #define ACPI_PDC_MP_C1_NATIVE   (1 << 8) /* MP C1 support other than halt */
 210 #define ACPI_PDC_MP_C2C3_NATIVE (1 << 9) /* MP C2 and C3 support */
 211 #define ACPI_PDC_PX_HWCOORD     (1 << 11)/* Hardware coordination of Px */
 212
 213 #define ACPI_OSC_QUERY_SUPPORT  (1 << 0) /* Query Support Flag */
 214
 215 #define ACPI_OSCERR_OSCFAIL     (1 << 1) /* _OSC failure */
 216 #define ACPI_OSCERR_UUID        (1 << 2) /* Unrecognized UUID */
 217 #define ACPI_OSCERR_REVISION    (1 << 3) /* Unrecognized revision ID */
 218 #define ACPI_OSCERR_CAPSMASKED  (1 << 4) /* Capabilities have been cleared */
 219 #define ACPI_OSCERR_MASK        0x0000001e
 220
 221 /*
 222  * Quirk flags.
 223  *
 224  * ACPI_Q_BROKEN: Disables all ACPI support.
 225  * ACPI_Q_TIMER: Disables support for the ACPI timer.
 226  * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
 227  *      first APIC and that the MADT should force that by ignoring the PC-AT
 228  *      compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
 229  * ACPI_Q_BATT_RATE_ABS: Specifies that the DSDT reports a negative 16-bit
 230  *      value for charging/discharging current and/or 0 as 65536.
 231  */
 232 extern int      acpi_quirks;
 233 #define ACPI_Q_OK               0
 234 #define ACPI_Q_BROKEN           (1 << 0)
 235 #define ACPI_Q_TIMER            (1 << 1)
 236 #define ACPI_Q_MADT_IRQ0        (1 << 2)
 237 #define ACPI_Q_BATT_RATE_ABS    (1 << 3)
 238
 239 /*
 240  * Note that the low ivar values are reserved to provide
 241  * interface compatibility with ISA drivers which can also
 242  * attach to ACPI.
 243  */
 244 #define ACPI_IVAR_HANDLE        0x100
 245 #define ACPI_IVAR_MAGIC         0x101
 246 #define ACPI_IVAR_PRIVATE       0x102
 247 #define ACPI_IVAR_FLAGS         0x103
 248
 249 /*
 250  * Accessor functions for our ivars.  Default value for BUS_READ_IVAR is
 251  * (type) 0.  The <sys/bus.h> accessor functions don't check return values.
 252  */
 253 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type)       \
 254                                                                 \
 255 static __inline type varp ## _get_ ## var(device_t dev)         \
 256 {                                                               \
 257     uintptr_t v = 0;                                            \
 258     BUS_READ_IVAR(device_get_parent(dev), dev,                  \
 259         ivarp ## _IVAR_ ## ivar, &v);                           \
 260     return ((type) v);                                          \
 261 }                                                               \
 262                                                                 \
 263 static __inline void varp ## _set_ ## var(device_t dev, type t) \
 264 {                                                               \
 265     uintptr_t v = (uintptr_t) t;                                \
 266     BUS_WRITE_IVAR(device_get_parent(dev), dev,                 \
 267         ivarp ## _IVAR_ ## ivar, v);                            \
 268 }
 269
 270 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
 271 __ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, uintptr_t)
 272 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
 273 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
 274
 275 void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
 276 static __inline device_t
 277 acpi_get_device(ACPI_HANDLE handle)
 278 {
 279     void *dev = NULL;
 280     AcpiGetData(handle, acpi_fake_objhandler, &dev);
 281     return ((device_t)dev);
 282 }
 283
 284 static __inline ACPI_OBJECT_TYPE
 285 acpi_get_type(device_t dev)
 286 {
 287     ACPI_HANDLE         h;
 288     ACPI_OBJECT_TYPE    t;
 289
 290     if ((h = acpi_get_handle(dev)) == NULL)
 291         return (ACPI_TYPE_NOT_FOUND);
 292     if (ACPI_FAILURE(AcpiGetType(h, &t)))
 293         return (ACPI_TYPE_NOT_FOUND);
 294     return (t);
 295 }
 296
 297 /* Find the difference between two PM tick counts. */
 298 static __inline uint32_t
 299 acpi_TimerDelta(uint32_t end, uint32_t start)
 300 {
 301
 302         if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0)
 303                 end |= 0x01000000;
 304         return (end - start);
 305 }
 306
 307 #ifdef ACPI_DEBUG
 308 #include <sys/cons.h>
 309 #define STEP(x)         do {printf x, printf("\n"); cngetc();} while (0)
 310 #else
 311 #define STEP(x)
 312 #endif
 313
 314 #define ACPI_VPRINT(dev, acpi_sc, x...) do {                    \
 315     if (acpi_get_verbose(acpi_sc))                              \
 316         device_printf(dev, x);                                  \
 317 } while (0)
 318
 319 /* Values for the device _STA (status) method. */
 320 #define ACPI_STA_PRESENT        (1 << 0)
 321 #define ACPI_STA_ENABLED        (1 << 1)
 322 #define ACPI_STA_SHOW_IN_UI     (1 << 2)
 323 #define ACPI_STA_FUNCTIONAL     (1 << 3)
 324 #define ACPI_STA_BATT_PRESENT   (1 << 4)
 325
 326 #define ACPI_DEVINFO_PRESENT(x, flags)                                  \
 327         (((x) & (flags)) == (flags))
 328 #define ACPI_DEVICE_PRESENT(x)                                          \
 329         ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL)
 330 #define ACPI_BATTERY_PRESENT(x)                                         \
 331         ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \
 332             ACPI_STA_BATT_PRESENT)
 333
 334 BOOLEAN         acpi_DeviceIsPresent(device_t dev);
 335 BOOLEAN         acpi_BatteryIsPresent(device_t dev);
 336 ACPI_STATUS     acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
 337                     ACPI_HANDLE *result);
 338 ACPI_BUFFER     *acpi_AllocBuffer(int size);
 339 ACPI_STATUS     acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
 340                     UINT32 *number);
 341 ACPI_STATUS     acpi_GetInteger(ACPI_HANDLE handle, char *path,
 342                     UINT32 *number);
 343 ACPI_STATUS     acpi_SetInteger(ACPI_HANDLE handle, char *path,
 344                     UINT32 number);
 345 ACPI_STATUS     acpi_ForeachPackageObject(ACPI_OBJECT *obj,
 346                     void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
 347 ACPI_STATUS     acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
 348                     ACPI_RESOURCE **resp);
 349 ACPI_STATUS     acpi_AppendBufferResource(ACPI_BUFFER *buf,
 350                     ACPI_RESOURCE *res);
 351 ACPI_STATUS     acpi_SetIntrModel(int model);
 352 int             acpi_ReqSleepState(struct acpi_softc *sc, int state);
 353 int             acpi_AckSleepState(struct apm_clone_data *clone, int error);
 354 ACPI_STATUS     acpi_SetSleepState(struct acpi_softc *sc, int state);
 355 int             acpi_wake_set_enable(device_t dev, int enable);
 356 int             acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
 357 ACPI_STATUS     acpi_Startup(void);
 358 void            acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
 359                     uint8_t notify);
 360 int             acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
 361                     ACPI_GENERIC_ADDRESS *gas, struct resource **res,
 362                     u_int flags);
 363 ACPI_STATUS     acpi_eval_osc(device_t dev, ACPI_HANDLE handle,
 364                     const char *uuidstr, int revision, uint32_t *buf,
 365                     int count);
 366
 367 struct acpi_parse_resource_set {
 368     void        (*set_init)(device_t dev, void *arg, void **context);
 369     void        (*set_done)(device_t dev, void *context);
 370     void        (*set_ioport)(device_t dev, void *context, uint64_t base,
 371                     uint64_t length);
 372     void        (*set_iorange)(device_t dev, void *context, uint64_t low,
 373                     uint64_t high, uint64_t length, uint64_t align);
 374     void        (*set_memory)(device_t dev, void *context, uint64_t base,
 375                     uint64_t length);
 376     void        (*set_memoryrange)(device_t dev, void *context, uint64_t low,
 377                     uint64_t high, uint64_t length, uint64_t align);
 378     void        (*set_irq)(device_t dev, void *context, uint8_t *irq,
 379                     int count, int trig, int pol);
 380     void        (*set_ext_irq)(device_t dev, void *context, uint32_t *irq,
 381                     int count, int trig, int pol);
 382     void        (*set_drq)(device_t dev, void *context, uint8_t *drq,
 383                     int count);
 384     void        (*set_start_dependent)(device_t dev, void *context,
 385                     int preference);
 386     void        (*set_end_dependent)(device_t dev, void *context);
 387 };
 388
 389 extern struct   acpi_parse_resource_set acpi_res_parse_set;
 390
 391 void            acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
 392 ACPI_STATUS     acpi_lookup_irq_resource(device_t dev, int rid,
 393                     struct resource *res, ACPI_RESOURCE *acpi_res);
 394 ACPI_STATUS     acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
 395                     struct acpi_parse_resource_set *set, void *arg);
 396
 397 /* ACPI event handling */
 398 UINT32          acpi_event_power_button_sleep(void *context);
 399 UINT32          acpi_event_power_button_wake(void *context);
 400 UINT32          acpi_event_sleep_button_sleep(void *context);
 401 UINT32          acpi_event_sleep_button_wake(void *context);
 402
 403 #define ACPI_EVENT_PRI_FIRST      0
 404 #define ACPI_EVENT_PRI_DEFAULT    10000
 405 #define ACPI_EVENT_PRI_LAST       20000
 406
 407 typedef void (*acpi_event_handler_t)(void *, int);
 408
 409 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
 410 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
 411
 412 /* Device power control. */
 413 ACPI_STATUS     acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
 414 ACPI_STATUS     acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
 415
 416 /* Misc. */
 417 static __inline struct acpi_softc *
 418 acpi_device_get_parent_softc(device_t child)
 419 {
 420     device_t    parent;
 421
 422     parent = device_get_parent(child);
 423     if (parent == NULL)
 424         return (NULL);
 425     return (device_get_softc(parent));
 426 }
 427
 428 static __inline int
 429 acpi_get_verbose(struct acpi_softc *sc)
 430 {
 431     if (sc)
 432         return (sc->acpi_verbose);
 433     return (0);
 434 }
 435
 436 char            *acpi_name(ACPI_HANDLE handle);
 437 int             acpi_avoid(ACPI_HANDLE handle);
 438 int             acpi_disabled(char *subsys);
 439 int             acpi_enabled(char *subsys);
 440 int             acpi_machdep_init(device_t dev);
 441 void            acpi_install_wakeup_handler(struct acpi_softc *sc);
 442 int             acpi_sleep_machdep(struct acpi_softc *sc, int state);
 443 int             acpi_table_quirks(int *quirks);
 444 int             acpi_machdep_quirks(int *quirks);
 445
 446 /* Battery Abstraction. */
 447 struct acpi_battinfo;
 448
 449 int             acpi_battery_register(device_t dev);
 450 int             acpi_battery_remove(device_t dev);
 451 int             acpi_battery_get_units(void);
 452 int             acpi_battery_get_info_expire(void);
 453 int             acpi_battery_bst_valid(struct acpi_bst *bst);
 454 int             acpi_battery_bif_valid(struct acpi_bif *bif);
 455 int             acpi_battery_get_battinfo(device_t dev,
 456                     struct acpi_battinfo *info);
 457
 458 /* Embedded controller. */
 459 void            acpi_ec_ecdt_probe(device_t);
 460
 461 /* AC adapter interface. */
 462 int             acpi_acad_get_acline(int *);
 463
 464 /* Package manipulation convenience functions. */
 465 #define ACPI_PKG_VALID(pkg, size)                               \
 466     ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE &&       \
 467      (pkg)->Package.Count >= (size))
 468 #define ACPI_PKG_VALID_EQ(pkg, size)    \
 469     (ACPI_PKG_VALID((pkg), (size)) && (pkg)->Package.Count == (size))
 470 int             acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst);
 471 int             acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
 472 int             acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
 473 int             acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
 474                     int *rid, struct resource **dst, u_int flags);
 475 int             acpi_PkgRawGas(ACPI_OBJECT *res, int idx,
 476                                ACPI_GENERIC_ADDRESS *gas);
 477 ACPI_HANDLE     acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
 478 /* ACPI task kernel thread initialization. */
 479 int             acpi_task_thread_init(void);
 480 void            acpi_task_thread_schedule(void);
 481 extern BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid);
 482 extern BOOLEAN acpi_MatchUid(ACPI_HANDLE h, const char *uid);
 483 /*
 484  * Base level for BUS_ADD_CHILD.  Special devices are added at orders less
 485  * than this, and normal devices at or above this level.  This keeps the
 486  * probe order sorted so that things like sysresource are available before
 487  * their children need them.
 488  */
 489 #define ACPI_DEV_BASE_ORDER     10
 490
 491 /* Default number of task queue threads to start. */
 492 #ifndef ACPI_MAX_THREADS
 493 #define ACPI_MAX_THREADS        3
 494 #endif
 495
 496 SYSCTL_DECL(_debug_acpi);
 497
 498 #endif /* _KERNEL */
 499 #endif /* !_ACPIVAR_H_ */