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     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_eval_osc() method.
 199  */
 200 #define ACPI_OSC_QUERY_SUPPORT  (1 << 0) /* Query Support Flag */
 201
 202 #define ACPI_OSC_ERRMASK        0x0000001e
 203 #define ACPI_OSCERR_FAILURE     (1 << 1) /* _OSC failure */
 204 #define ACPI_OSCERR_BADUUID     (1 << 2) /* Unrecognized UUID */
 205 #define ACPI_OSCERR_BADREV      (1 << 3) /* Unrecognized revision ID */
 206 #define ACPI_OSCERR_CAPSMASKED  (1 << 4) /* Capabilities have been cleared */
 207
 208 /*
 209  * Intel CPU _OSC capabilities, see "Intel Processor Vendor-Specific ACPI",
 210  * number 302223-007.
 211  */
 212 #define ACPI_PDC_PX_MSR         (1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
 213 #define ACPI_PDC_MP_C1_IO_HALT  (1 << 1) /* Intel C1 "IO then halt" sequence */
 214 #define ACPI_PDC_TX_MSR         (1 << 2) /* Intel OnDemand throttling MSRs */
 215 #define ACPI_PDC_MP_C1PXTX      (1 << 3) /* MP C1, Px, and Tx */
 216 #define ACPI_PDC_MP_C2C3        (1 << 4) /* MP C2 and C3 */
 217 #define ACPI_PDC_MP_PX_SWCOORD  (1 << 5) /* MP Px, using _PSD */
 218 #define ACPI_PDC_MP_CX_SWCOORD  (1 << 6) /* MP Cx, using _CSD */
 219 #define ACPI_PDC_MP_TX_SWCOORD  (1 << 7) /* MP Tx, using _TSD */
 220 #define ACPI_PDC_MP_C1_NATIVE   (1 << 8) /* MP C1 support other than halt */
 221 #define ACPI_PDC_MP_C2C3_NATIVE (1 << 9) /* MP C2 and C3 support */
 222 #define ACPI_PDC_PX_HWCOORD     (1 << 11)/* Hardware coordination of Px */
 223
 224 /*
 225  * Quirk flags.
 226  *
 227  * ACPI_Q_BROKEN: Disables all ACPI support.
 228  * ACPI_Q_TIMER: Disables support for the ACPI timer.
 229  * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
 230  *      first APIC and that the MADT should force that by ignoring the PC-AT
 231  *      compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
 232  * ACPI_Q_BATT_RATE_ABS: Specifies that the DSDT reports a negative 16-bit
 233  *      value for charging/discharging current and/or 0 as 65536.
 234  */
 235 extern int      acpi_quirks;
 236 #define ACPI_Q_OK               0
 237 #define ACPI_Q_BROKEN           (1 << 0)
 238 #define ACPI_Q_TIMER            (1 << 1)
 239 #define ACPI_Q_MADT_IRQ0        (1 << 2)
 240 #define ACPI_Q_BATT_RATE_ABS    (1 << 3)
 241
 242 /*
 243  * Note that the low ivar values are reserved to provide
 244  * interface compatibility with ISA drivers which can also
 245  * attach to ACPI.
 246  */
 247 #define ACPI_IVAR_HANDLE        0x100
 248 #define ACPI_IVAR_MAGIC         0x101
 249 #define ACPI_IVAR_PRIVATE       0x102
 250 #define ACPI_IVAR_FLAGS         0x103
 251 #define ACPI_IVAR_RECHECK       0x104
 252
 253 /*
 254  * Accessor functions for our ivars.  Default value for BUS_READ_IVAR is
 255  * (type) 0.  The <sys/bus.h> accessor functions don't check return values.
 256  */
 257 #define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type)       \
 258                                                                 \
 259 static __inline type varp ## _get_ ## var(device_t dev)         \
 260 {                                                               \
 261     uintptr_t v = 0;                                            \
 262     BUS_READ_IVAR(device_get_parent(dev), dev,                  \
 263         ivarp ## _IVAR_ ## ivar, &v);                           \
 264     return ((type) v);                                          \
 265 }                                                               \
 266                                                                 \
 267 static __inline void varp ## _set_ ## var(device_t dev, type t) \
 268 {                                                               \
 269     uintptr_t v = (uintptr_t) t;                                \
 270     BUS_WRITE_IVAR(device_get_parent(dev), dev,                 \
 271         ivarp ## _IVAR_ ## ivar, v);                            \
 272 }
 273
 274 __ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
 275 __ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, uintptr_t)
 276 __ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
 277 __ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
 278 __ACPI_BUS_ACCESSOR(acpi, recheck, ACPI, RECHECK, int)
 279
 280 void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
 281 static __inline device_t
 282 acpi_get_device(ACPI_HANDLE handle)
 283 {
 284     void *dev = NULL;
 285     AcpiGetData(handle, acpi_fake_objhandler, &dev);
 286     return ((device_t)dev);
 287 }
 288
 289 static __inline ACPI_OBJECT_TYPE
 290 acpi_get_type(device_t dev)
 291 {
 292     ACPI_HANDLE         h;
 293     ACPI_OBJECT_TYPE    t;
 294
 295     if ((h = acpi_get_handle(dev)) == NULL)
 296         return (ACPI_TYPE_NOT_FOUND);
 297     if (ACPI_FAILURE(AcpiGetType(h, &t)))
 298         return (ACPI_TYPE_NOT_FOUND);
 299     return (t);
 300 }
 301
 302 /* Find the difference between two PM tick counts. */
 303 static __inline uint32_t
 304 acpi_TimerDelta(uint32_t end, uint32_t start)
 305 {
 306
 307         if (end < start && (AcpiGbl_FADT.Flags & ACPI_FADT_32BIT_TIMER) == 0)
 308                 end |= 0x01000000;
 309         return (end - start);
 310 }
 311
 312 #ifdef ACPI_DEBUG
 313 #include <sys/cons.h>
 314 #define STEP(x)         do {printf x, printf("\n"); cngetc();} while (0)
 315 #else
 316 #define STEP(x)
 317 #endif
 318
 319 #define ACPI_VPRINT(dev, acpi_sc, x...) do {                    \
 320     if (acpi_get_verbose(acpi_sc))                              \
 321         device_printf(dev, x);                                  \
 322 } while (0)
 323
 324 /* Values for the device _STA (status) method. */
 325 #define ACPI_STA_PRESENT        (1 << 0)
 326 #define ACPI_STA_ENABLED        (1 << 1)
 327 #define ACPI_STA_SHOW_IN_UI     (1 << 2)
 328 #define ACPI_STA_FUNCTIONAL     (1 << 3)
 329 #define ACPI_STA_BATT_PRESENT   (1 << 4)
 330
 331 #define ACPI_DEVINFO_PRESENT(x, flags)                                  \
 332         (((x) & (flags)) == (flags))
 333 #define ACPI_DEVICE_PRESENT(x)                                          \
 334         ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL)
 335 #define ACPI_BATTERY_PRESENT(x)                                         \
 336         ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \
 337             ACPI_STA_BATT_PRESENT)
 338
 339 BOOLEAN         acpi_DeviceIsPresent(device_t dev);
 340 BOOLEAN         acpi_BatteryIsPresent(device_t dev);
 341 ACPI_STATUS     acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
 342                     ACPI_HANDLE *result);
 343 ACPI_BUFFER     *acpi_AllocBuffer(int size);
 344 ACPI_STATUS     acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
 345                     UINT32 *number);
 346 ACPI_STATUS     acpi_GetInteger(ACPI_HANDLE handle, char *path,
 347                     UINT32 *number);
 348 ACPI_STATUS     acpi_SetInteger(ACPI_HANDLE handle, char *path,
 349                     UINT32 number);
 350 ACPI_STATUS     acpi_ForeachPackageObject(ACPI_OBJECT *obj,
 351                     void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
 352 ACPI_STATUS     acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
 353                     ACPI_RESOURCE **resp);
 354 ACPI_STATUS     acpi_AppendBufferResource(ACPI_BUFFER *buf,
 355                     ACPI_RESOURCE *res);
 356 ACPI_STATUS     acpi_SetIntrModel(int model);
 357 int             acpi_ReqSleepState(struct acpi_softc *sc, int state);
 358 int             acpi_AckSleepState(struct apm_clone_data *clone, int error);
 359 ACPI_STATUS     acpi_SetSleepState(struct acpi_softc *sc, int state);
 360 int             acpi_wake_set_enable(device_t dev, int enable);
 361 int             acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
 362 ACPI_STATUS     acpi_Startup(void);
 363 void            acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
 364                     uint8_t notify);
 365 int             acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
 366                     ACPI_GENERIC_ADDRESS *gas, struct resource **res,
 367                     u_int flags);
 368 ACPI_STATUS     acpi_eval_osc(device_t dev, ACPI_HANDLE handle,
 369                     const char *uuidstr, int revision, uint32_t *buf,
 370                     int count);
 371
 372 struct acpi_parse_resource_set {
 373     void        (*set_init)(device_t dev, void *arg, void **context);
 374     void        (*set_done)(device_t dev, void *context);
 375     void        (*set_ioport)(device_t dev, void *context, uint64_t base,
 376                     uint64_t length);
 377     void        (*set_iorange)(device_t dev, void *context, uint64_t low,
 378                     uint64_t high, uint64_t length, uint64_t align);
 379     void        (*set_memory)(device_t dev, void *context, uint64_t base,
 380                     uint64_t length);
 381     void        (*set_memoryrange)(device_t dev, void *context, uint64_t low,
 382                     uint64_t high, uint64_t length, uint64_t align);
 383     void        (*set_irq)(device_t dev, void *context, uint8_t *irq,
 384                     int count, int trig, int pol);
 385     void        (*set_ext_irq)(device_t dev, void *context, uint32_t *irq,
 386                     int count, int trig, int pol);
 387     void        (*set_drq)(device_t dev, void *context, uint8_t *drq,
 388                     int count);
 389     void        (*set_start_dependent)(device_t dev, void *context,
 390                     int preference);
 391     void        (*set_end_dependent)(device_t dev, void *context);
 392 };
 393
 394 extern struct   acpi_parse_resource_set acpi_res_parse_set;
 395
 396 void            acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
 397 ACPI_STATUS     acpi_lookup_irq_resource(device_t dev, int rid,
 398                     struct resource *res, ACPI_RESOURCE *acpi_res);
 399 ACPI_STATUS     acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
 400                     struct acpi_parse_resource_set *set, void *arg);
 401
 402 /* ACPI event handling */
 403 UINT32          acpi_event_power_button_sleep(void *context);
 404 UINT32          acpi_event_power_button_wake(void *context);
 405 UINT32          acpi_event_sleep_button_sleep(void *context);
 406 UINT32          acpi_event_sleep_button_wake(void *context);
 407
 408 #define ACPI_EVENT_PRI_FIRST      0
 409 #define ACPI_EVENT_PRI_DEFAULT    10000
 410 #define ACPI_EVENT_PRI_LAST       20000
 411
 412 typedef void (*acpi_event_handler_t)(void *, int);
 413
 414 EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
 415 EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
 416
 417 /* Device power control. */
 418 ACPI_STATUS     acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
 419 ACPI_STATUS     acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
 420
 421 /* Misc. */
 422 static __inline struct acpi_softc *
 423 acpi_device_get_parent_softc(device_t child)
 424 {
 425     device_t    parent;
 426
 427     parent = device_get_parent(child);
 428     if (parent == NULL)
 429         return (NULL);
 430     return (device_get_softc(parent));
 431 }
 432
 433 static __inline int
 434 acpi_get_verbose(struct acpi_softc *sc)
 435 {
 436     if (sc)
 437         return (sc->acpi_verbose);
 438     return (0);
 439 }
 440
 441 char            *acpi_name(ACPI_HANDLE handle);
 442 int             acpi_avoid(ACPI_HANDLE handle);
 443 int             acpi_disabled(char *subsys);
 444 int             acpi_enabled(char *subsys);
 445 int             acpi_machdep_init(device_t dev);
 446 void            acpi_install_wakeup_handler(struct acpi_softc *sc);
 447 int             acpi_sleep_machdep(struct acpi_softc *sc, int state);
 448 int             acpi_table_quirks(int *quirks);
 449 int             acpi_machdep_quirks(int *quirks);
 450
 451 /* Battery Abstraction. */
 452 struct acpi_battinfo;
 453
 454 int             acpi_battery_register(device_t dev);
 455 int             acpi_battery_remove(device_t dev);
 456 int             acpi_battery_get_units(void);
 457 int             acpi_battery_get_info_expire(void);
 458 int             acpi_battery_bst_valid(struct acpi_bst *bst);
 459 int             acpi_battery_bif_valid(struct acpi_bif *bif);
 460 int             acpi_battery_get_battinfo(device_t dev,
 461                     struct acpi_battinfo *info);
 462
 463 /* Embedded controller. */
 464 void            acpi_ec_ecdt_probe(device_t);
 465
 466 /* AC adapter interface. */
 467 int             acpi_acad_get_acline(int *);
 468
 469 /* Package manipulation convenience functions. */
 470 #define ACPI_PKG_VALID(pkg, size)                               \
 471     ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE &&       \
 472      (pkg)->Package.Count >= (size))
 473 #define ACPI_PKG_VALID_EQ(pkg, size)    \
 474     (ACPI_PKG_VALID((pkg), (size)) && (pkg)->Package.Count == (size))
 475 int             acpi_PkgInt(ACPI_OBJECT *res, int idx, UINT64 *dst);
 476 int             acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
 477 int             acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
 478 int             acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
 479                     int *rid, struct resource **dst, u_int flags);
 480 int             acpi_PkgRawGas(ACPI_OBJECT *res, int idx,
 481                                ACPI_GENERIC_ADDRESS *gas);
 482 ACPI_HANDLE     acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
 483 /* ACPI task kernel thread initialization. */
 484 int             acpi_task_thread_init(void);
 485 void            acpi_task_thread_schedule(void);
 486 extern BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid);
 487 extern BOOLEAN acpi_MatchUid(ACPI_HANDLE h, const char *uid);
 488 /*
 489  * Base level for BUS_ADD_CHILD.  Special devices are added at orders less
 490  * than this, and normal devices at or above this level.  This keeps the
 491  * probe order sorted so that things like sysresource are available before
 492  * their children need them.
 493  */
 494 #define ACPI_DEV_BASE_ORDER     10
 495
 496 /* Default number of task queue threads to start. */
 497 #ifndef ACPI_MAX_THREADS
 498 #define ACPI_MAX_THREADS        3
 499 #endif
 500
 501 SYSCTL_DECL(_debug_acpi);
 502
 503 #endif /* _KERNEL */
 504 #endif /* !_ACPIVAR_H_ */