[dragonfly.git] / sys / dev / acpica5 / acpivar.h

/*-
 * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
 * Copyright (c) 2000 BSDi
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: src/sys/dev/acpica/acpivar.h,v 1.108.8.1 2009/04/15 03:14:26 kensmith Exp $
 */

#ifndef _ACPIVAR_H_
#define _ACPIVAR_H_

#ifdef _KERNEL


#include "acpi_if.h"
#include "bus_if.h"
#include <sys/eventhandler.h>
#include <sys/sysctl.h>
#if __FreeBSD_version >= 500000 || defined(__DragonFly__)
#include <sys/lock.h>
#include <sys/mutex.h>
#endif
#include <sys/bus.h>
#include <sys/spinlock.h>
#include <sys/spinlock2.h>
#include <sys/serialize.h>
#include "acmacros.h"
#include "acconfig.h"
#include "aclocal.h"
#include "acobject.h"
#include "acstruct.h"
#include "acutils.h"

struct apm_clone_data;
struct acpi_softc {
    device_t		acpi_dev;
    cdev_t		acpi_dev_t;

    struct resource	*acpi_irq;
    int			acpi_irq_rid;
    void		*acpi_irq_handle;

    int			acpi_enabled;
    int			acpi_sstate;
    int			acpi_sleep_disabled;

    struct sysctl_ctx_list acpi_sysctl_ctx;
    struct sysctl_oid	*acpi_sysctl_tree;
    int			acpi_power_button_sx;
    int			acpi_sleep_button_sx;
    int			acpi_lid_switch_sx;

    int			acpi_standby_sx;
    int			acpi_suspend_sx;

    int			acpi_sleep_delay;
    int			acpi_s4bios;
    int			acpi_do_disable;
    int			acpi_verbose;
    int			acpi_handle_reboot;

    bus_dma_tag_t	acpi_waketag;
    bus_dmamap_t	acpi_wakemap;
    vm_offset_t		acpi_wakeaddr;
    vm_paddr_t		acpi_wakephys;

    int			acpi_next_sstate;	/* Next suspend Sx state. */
    struct apm_clone_data *acpi_clone;		/* Pseudo-dev for devd(8). */
    STAILQ_HEAD(,apm_clone_data) apm_cdevs;	/* All apm/apmctl/acpi cdevs. */
    struct callout	susp_force_to;		/* Force suspend if no acks. */
};

struct acpi_device {
    /* ACPI ivars */
    ACPI_HANDLE			ad_handle;
    uintptr_t			ad_magic;
    void			*ad_private;
    int				ad_flags;

    /* Resources */
    struct resource_list	ad_rl;
};

/* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */
struct apm_clone_data {
    STAILQ_ENTRY(apm_clone_data) entries;
    struct cdev 	*cdev;
    int			flags;
#define	ACPI_EVF_NONE	0	/* /dev/apm semantics */
#define	ACPI_EVF_DEVD	1	/* /dev/acpi is handled via devd(8) */
#define	ACPI_EVF_WRITE	2	/* Device instance is opened writable. */
    int			notify_status;
#define	APM_EV_NONE	0	/* Device not yet aware of pending sleep. */
#define	APM_EV_NOTIFIED	1	/* Device saw next sleep state. */
#define	APM_EV_ACKED	2	/* Device agreed sleep can occur. */
    struct acpi_softc	*acpi_sc;
};

#define ACPI_PRW_MAX_POWERRES	8

struct acpi_prw_data {
    ACPI_HANDLE		gpe_handle;
    int			gpe_bit;
    int			lowest_wake;
    ACPI_OBJECT		power_res[ACPI_PRW_MAX_POWERRES];
    int			power_res_count;
};

/* Flags for each device defined in the AML namespace. */
#define ACPI_FLAG_WAKE_ENABLED	0x1

/* Macros for extracting parts of a PCI address from an _ADR value. */
#define	ACPI_ADR_PCI_SLOT(adr)	(((adr) & 0xffff0000) >> 16)
#define	ACPI_ADR_PCI_FUNC(adr)	((adr) & 0xffff)

/*
 * Entry points to ACPI from above are global functions defined in this
 * file, sysctls, and I/O on the control device.  Entry points from below
 * are interrupts (the SCI), notifies, task queue threads, and the thermal
 * zone polling thread.
 *
 * ACPI tables and global shared data are protected by a global lock
 * (acpi_lock).
 *
 * Each ACPI device can have its own driver-specific mutex for protecting
 * shared access to local data.  The ACPI_LOCK macros handle mutexes.
 *
 * Drivers that need to serialize access to functions (e.g., to route
 * interrupts, get/set control paths, etc.) should use the sx lock macros
 * (ACPI_SERIAL).
 *
 * ACPI-CA handles its own locking and should not be called with locks held.
 *
 * The most complicated path is:
 *     GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
 */
extern struct lock acpi_lock;
/* acpi_thermal does lock recurs on purpose */
/* I bet I should use some other locks here */
#define ACPI_LOCK(sys)                  lockmgr(&sys##_lock, LK_EXCLUSIVE|LK_RETRY|LK_CANRECURSE);
#define ACPI_UNLOCK(sys)                lockmgr(&sys##_lock, LK_RELEASE);
#define ACPI_LOCK_ASSERT(sys)           KKASSERT(lockstatus(&sys##_lock, curthread) == LK_EXCLUSIVE);
#define ACPI_ASSERTLOCK ACPI_LOCK_ASSERT
#define ACPI_LOCK_DECL(sys, name)       static struct lock sys##_lock;
#define ACPI_LOCK_INIT(sys, name)       lockinit(&sys##_lock, name, 0, 0);

#define ACPI_SERIAL_INIT(sys)           lockinit(&sys##_serial, #sys, 0, 0);
#define ACPI_SERIAL_BEGIN(sys)          lockmgr(&sys##_serial, LK_EXCLUSIVE|LK_RETRY);
#define ACPI_SERIAL_END(sys)            lockmgr(&sys##_serial, LK_RELEASE);
#define ACPI_SERIAL_ASSERT(sys)         KKASSERT(lockstatus(&sys##_serial, curthread) == LK_EXCLUSIVE);
#define ACPI_SERIAL_DECL(sys, name)     static struct lock sys##_serial;
/*
 * ACPI CA does not define layers for non-ACPI CA drivers.
 * We define some here within the range provided.
 */
#define	ACPI_AC_ADAPTER		0x00010000
#define	ACPI_BATTERY		0x00020000
#define	ACPI_BUS		0x00040000
#define	ACPI_BUTTON		0x00080000
#define	ACPI_EC			0x00100000
#define	ACPI_FAN		0x00200000
#define	ACPI_POWERRES		0x00400000
#define	ACPI_PROCESSOR		0x00800000
#define	ACPI_THERMAL		0x01000000
#define	ACPI_TIMER		0x02000000
#define	ACPI_OEM		0x04000000

/*
 * Constants for different interrupt models used with acpi_SetIntrModel().
 */
#define	ACPI_INTR_PIC		0
#define	ACPI_INTR_APIC		1
#define	ACPI_INTR_SAPIC		2

/*
 * Various features and capabilities for the acpi_get_features() method.
 * In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
 * See the Intel document titled "Processor Driver Capabilities Bit
 * Definitions", number 302223-005.
 */
#define ACPI_PDC_PX_MSR		(1 << 0) /* Intel SpeedStep PERF_CTL MSRs */
#define ACPI_PDC_MP_C1_IO_HALT	(1 << 1) /* Intel C1 "IO then halt" sequence */
#define ACPI_PDC_TX_MSR		(1 << 2) /* Intel OnDemand throttling MSRs */
#define ACPI_PDC_MP_C1PXTX	(1 << 3) /* MP C1, Px, and Tx */
#define ACPI_PDC_MP_C2C3	(1 << 4) /* MP C2 and C3 */
#define ACPI_PDC_MP_PX_SWCOORD	(1 << 5) /* MP Px, using _PSD */
#define ACPI_PDC_MP_CX_SWCOORD	(1 << 6) /* MP Cx, using _CSD */
#define ACPI_PDC_MP_TX_SWCOORD	(1 << 7) /* MP Tx, using _TSD */
#define ACPI_PDC_MP_C1_NATIVE	(1 << 8) /* MP C1 support other than halt */
#define ACPI_PDC_MP_C2C3_NATIVE	(1 << 9) /* MP C2 and C3 support */
#define ACPI_PDC_PX_HWCOORD	(1 << 11)/* Hardware coordination of Px */

/*
 * Quirk flags.
 *
 * ACPI_Q_BROKEN: Disables all ACPI support.
 * ACPI_Q_TIMER: Disables support for the ACPI timer.
 * ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
 *	first APIC and that the MADT should force that by ignoring the PC-AT
 *	compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
 */
extern int	acpi_quirks;
#define ACPI_Q_OK		0
#define ACPI_Q_BROKEN		(1 << 0)
#define ACPI_Q_TIMER		(1 << 1)
#define ACPI_Q_MADT_IRQ0	(1 << 2)

/*
 * Note that the low ivar values are reserved to provide
 * interface compatibility with ISA drivers which can also
 * attach to ACPI.
 */
#define ACPI_IVAR_HANDLE	0x100
#define ACPI_IVAR_MAGIC		0x101
#define ACPI_IVAR_PRIVATE	0x102
#define ACPI_IVAR_FLAGS		0x103

/*
 * Accessor functions for our ivars.  Default value for BUS_READ_IVAR is
 * (type) 0.  The <sys/bus.h> accessor functions don't check return values.
 */
#define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type)	\
								\
static __inline type varp ## _get_ ## var(device_t dev)		\
{								\
    uintptr_t v = 0;						\
    BUS_READ_IVAR(device_get_parent(dev), dev,			\
	ivarp ## _IVAR_ ## ivar, &v);				\
    return ((type) v);						\
}								\
								\
static __inline void varp ## _set_ ## var(device_t dev, type t)	\
{								\
    uintptr_t v = (uintptr_t) t;				\
    BUS_WRITE_IVAR(device_get_parent(dev), dev,			\
	ivarp ## _IVAR_ ## ivar, v);				\
}

__ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
__ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, uintptr_t)
__ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
__ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)

void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
static __inline device_t
acpi_get_device(ACPI_HANDLE handle)
{
    void *dev = NULL;
    AcpiGetData(handle, acpi_fake_objhandler, &dev);
    return ((device_t)dev);
}

static __inline ACPI_OBJECT_TYPE
acpi_get_type(device_t dev)
{
    ACPI_HANDLE		h;
    ACPI_OBJECT_TYPE	t;

    if ((h = acpi_get_handle(dev)) == NULL)
	return (ACPI_TYPE_NOT_FOUND);
    if (AcpiGetType(h, &t) != AE_OK)
	return (ACPI_TYPE_NOT_FOUND);
    return (t);
}

#ifdef ACPI_DEBUGGER
void		acpi_EnterDebugger(void);
#endif

#ifdef ACPI_DEBUG
#include <sys/cons.h>
#define STEP(x)		do {printf x, printf("\n"); cngetc();} while (0)
#else
#define STEP(x)
#endif

#define ACPI_VPRINT(dev, acpi_sc, x...) do {			\
    if (acpi_get_verbose(acpi_sc))				\
	device_printf(dev, x);					\
} while (0)

/* Values for the device _STA (status) method. */
#define ACPI_STA_PRESENT	(1 << 0)
#define ACPI_STA_ENABLED	(1 << 1)
#define ACPI_STA_SHOW_IN_UI	(1 << 2)
#define ACPI_STA_FUNCTIONAL	(1 << 3)
#define ACPI_STA_BATT_PRESENT	(1 << 4)

#define ACPI_DEVINFO_PRESENT(x, flags)					\
	(((x) & (flags)) == (flags))
#define ACPI_DEVICE_PRESENT(x)						\
	ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL)
#define ACPI_BATTERY_PRESENT(x)						\
	ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT | ACPI_STA_FUNCTIONAL | \
	    ACPI_STA_BATT_PRESENT)

BOOLEAN		acpi_DeviceIsPresent(device_t dev);
BOOLEAN		acpi_BatteryIsPresent(device_t dev);
ACPI_STATUS	acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
		    ACPI_HANDLE *result);
uint32_t	acpi_TimerDelta(uint32_t end, uint32_t start);
ACPI_BUFFER	*acpi_AllocBuffer(int size);
ACPI_STATUS	acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
		    UINT32 *number);
ACPI_STATUS	acpi_GetInteger(ACPI_HANDLE handle, char *path,
		    UINT32 *number);
ACPI_STATUS	acpi_SetInteger(ACPI_HANDLE handle, char *path,
		    UINT32 number);
ACPI_STATUS	acpi_ForeachPackageObject(ACPI_OBJECT *obj, 
		    void (*func)(ACPI_OBJECT *comp, void *arg), void *arg);
ACPI_STATUS	acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
		    ACPI_RESOURCE **resp);
ACPI_STATUS	acpi_AppendBufferResource(ACPI_BUFFER *buf,
		    ACPI_RESOURCE *res);
ACPI_STATUS	acpi_SetIntrModel(int model);
int		acpi_ReqSleepState(struct acpi_softc *sc, int state);
int		acpi_AckSleepState(struct apm_clone_data *clone, int error);
ACPI_STATUS	acpi_SetSleepState(struct acpi_softc *sc, int state);
int		acpi_wake_set_enable(device_t dev, int enable);
int		acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
ACPI_STATUS	acpi_Startup(void);
void		acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
		    uint8_t notify);
int		acpi_bus_alloc_gas(device_t dev, int *type, int *rid,
		    ACPI_GENERIC_ADDRESS *gas, struct resource **res,
		    u_int flags);

struct acpi_parse_resource_set {
    void	(*set_init)(device_t dev, void *arg, void **context);
    void	(*set_done)(device_t dev, void *context);
    void	(*set_ioport)(device_t dev, void *context, uint32_t base,
		    uint32_t length);
    void	(*set_iorange)(device_t dev, void *context, uint32_t low,
		    uint32_t high, uint32_t length, uint32_t align);
    void	(*set_memory)(device_t dev, void *context, uint32_t base,
		    uint32_t length);
    void	(*set_memoryrange)(device_t dev, void *context, uint32_t low,
		    uint32_t high, uint32_t length, uint32_t align);
    void	(*set_irq)(device_t dev, void *context, u_int8_t *irq,
		    int count, int trig, int pol);
    void	(*set_ext_irq)(device_t dev, void *context, u_int32_t *irq,
		    int count, int trig, int pol);
    void	(*set_drq)(device_t dev, void *context, u_int8_t *drq,
		    int count);
    void	(*set_start_dependent)(device_t dev, void *context,
		    int preference);
    void	(*set_end_dependent)(device_t dev, void *context);
};

extern struct	acpi_parse_resource_set acpi_res_parse_set;

void		acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
ACPI_STATUS	acpi_lookup_irq_resource(device_t dev, int rid,
		    struct resource *res, ACPI_RESOURCE *acpi_res);
ACPI_STATUS	acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
		    struct acpi_parse_resource_set *set, void *arg);

/* ACPI event handling */
UINT32		acpi_event_power_button_sleep(void *context);
UINT32		acpi_event_power_button_wake(void *context);
UINT32		acpi_event_sleep_button_sleep(void *context);
UINT32		acpi_event_sleep_button_wake(void *context);

#define ACPI_EVENT_PRI_FIRST      0
#define ACPI_EVENT_PRI_DEFAULT    10000
#define ACPI_EVENT_PRI_LAST       20000

typedef void (*acpi_event_handler_t)(void *, int);

EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);

/* Device power control. */
ACPI_STATUS	acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
ACPI_STATUS	acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);

/* Misc. */
static __inline struct acpi_softc *
acpi_device_get_parent_softc(device_t child)
{
    device_t	parent;

    parent = device_get_parent(child);
    if (parent == NULL)
	return (NULL);
    return (device_get_softc(parent));
}

static __inline int
acpi_get_verbose(struct acpi_softc *sc)
{
    if (sc)
	return (sc->acpi_verbose);
    return (0);
}

char		*acpi_name(ACPI_HANDLE handle);
int		acpi_avoid(ACPI_HANDLE handle);
int		acpi_disabled(char *subsys);
int		acpi_enabled(char *subsys);
int		acpi_machdep_init(device_t dev);
void		acpi_install_wakeup_handler(struct acpi_softc *sc);
int		acpi_sleep_machdep(struct acpi_softc *sc, int state);
int		acpi_table_quirks(int *quirks);
int		acpi_machdep_quirks(int *quirks);

/* Battery Abstraction. */
struct acpi_battinfo;

int		acpi_battery_register(device_t dev);
int		acpi_battery_remove(device_t dev);
int		acpi_battery_get_units(void);
int		acpi_battery_get_info_expire(void);
int		acpi_battery_bst_valid(struct acpi_bst *bst);
int		acpi_battery_bif_valid(struct acpi_bif *bif);
int		acpi_battery_get_battinfo(device_t dev,
		    struct acpi_battinfo *info);

/* Embedded controller. */
void		acpi_ec_ecdt_probe(device_t);

/* AC adapter interface. */
int		acpi_acad_get_acline(int *);

/* Package manipulation convenience functions. */
#define ACPI_PKG_VALID(pkg, size)				\
    ((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE &&	\
     (pkg)->Package.Count >= (size))
#define ACPI_PKG_VALID_EQ(pkg, size)    \
    (ACPI_PKG_VALID((pkg), (size)) && (pkg)->Package.Count == (size))
int		acpi_PkgInt(ACPI_OBJECT *res, int idx, ACPI_INTEGER *dst);
int		acpi_PkgInt32(ACPI_OBJECT *res, int idx, uint32_t *dst);
int		acpi_PkgStr(ACPI_OBJECT *res, int idx, void *dst, size_t size);
int		acpi_PkgGas(device_t dev, ACPI_OBJECT *res, int idx, int *type,
		    int *rid, struct resource **dst, u_int flags);
int		acpi_PkgRawGas(ACPI_OBJECT *res, int idx,
			       ACPI_GENERIC_ADDRESS *gas);
ACPI_HANDLE	acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
/* ACPI task kernel thread initialization. */
int     acpi_task_thread_init(void);
extern BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid);
/*
 * Base level for BUS_ADD_CHILD.  Special devices are added at orders less
 * than this, and normal devices at or above this level.  This keeps the
 * probe order sorted so that things like sysresource are available before
 * their children need them.
 */
#define	ACPI_DEV_BASE_ORDER	10

/* Default number of task queue threads to start. */
#ifndef ACPI_MAX_THREADS
#define ACPI_MAX_THREADS	3
#endif

/* Use the device logging level for ktr(4). */
#define	KTR_ACPI		KTR_DEV

#endif /* _KERNEL */
#endif /* !_ACPIVAR_H_ */
Commit	Line	Data
5ed44076 MD	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	*
10f97674	28	* $FreeBSD: src/sys/dev/acpica/acpivar.h,v 1.108.8.1 2009/04/15 03:14:26 kensmith Exp $
5ed44076 MD	29	*/
5ed44076 MD	30
10f97674 AP	31	#ifndef _ACPIVAR_H_
	32	#define _ACPIVAR_H_
	33
	34	#ifdef _KERNEL
	35
	36
676159d4	37	#include "acpi_if.h"
5ed44076 MD	38	#include "bus_if.h"
	39	#include <sys/eventhandler.h>
	40	#include <sys/sysctl.h>
5c7ffd75	41	#if __FreeBSD_version >= 500000 \|\| defined(__DragonFly__)
5ed44076 MD	42	#include <sys/lock.h>
	43	#include <sys/mutex.h>
	44	#endif
1f7ab7c9	45	#include <sys/bus.h>
10f97674 AP	46	#include <sys/spinlock.h>
	47	#include <sys/spinlock2.h>
	48	#include <sys/serialize.h>
	49	#include "acmacros.h"
	50	#include "acconfig.h"
	51	#include "aclocal.h"
	52	#include "acobject.h"
	53	#include "acstruct.h"
2382383b	54	#include "acutils.h"
5ed44076	55
10f97674	56	struct apm_clone_data;
5ed44076 MD	57	struct acpi_softc {
5ed44076 MD	58	device_t acpi_dev;
b13267a5	59	cdev_t acpi_dev_t;
5ed44076 MD	60
	61	struct resource *acpi_irq;
	62	int acpi_irq_rid;
	63	void *acpi_irq_handle;
	64
	65	int acpi_enabled;
	66	int acpi_sstate;
	67	int acpi_sleep_disabled;
	68
	69	struct sysctl_ctx_list acpi_sysctl_ctx;
	70	struct sysctl_oid *acpi_sysctl_tree;
5ed44076 MD	71	int acpi_power_button_sx;
	72	int acpi_sleep_button_sx;
	73	int acpi_lid_switch_sx;
	74
	75	int acpi_standby_sx;
	76	int acpi_suspend_sx;
	77
	78	int acpi_sleep_delay;
	79	int acpi_s4bios;
10f97674	80	int acpi_do_disable;
5ed44076	81	int acpi_verbose;
10f97674	82	int acpi_handle_reboot;
5ed44076 MD	83
	84	bus_dma_tag_t acpi_waketag;
	85	bus_dmamap_t acpi_wakemap;
	86	vm_offset_t acpi_wakeaddr;
	87	vm_paddr_t acpi_wakephys;
	88
10f97674 AP	89	int acpi_next_sstate; /* Next suspend Sx state. */
	90	struct apm_clone_data acpi_clone; / Pseudo-dev for devd(8). */
	91	STAILQ_HEAD(,apm_clone_data) apm_cdevs; /* All apm/apmctl/acpi cdevs. */
	92	struct callout susp_force_to; /* Force suspend if no acks. */
5ed44076 MD	93	};
	94
	95	struct acpi_device {
	96	/* ACPI ivars */
	97	ACPI_HANDLE ad_handle;
10f97674	98	uintptr_t ad_magic;
5ed44076	99	void *ad_private;
10f97674	100	int ad_flags;
5ed44076	101
f9d8cd12	102	/* Resources */
5ed44076	103	struct resource_list ad_rl;
49e48b8a	104	};
5ed44076	105
10f97674 AP	106	/* Track device (/dev/{apm,apmctl} and /dev/acpi) notification status. */
	107	struct apm_clone_data {
	108	STAILQ_ENTRY(apm_clone_data) entries;
	109	struct cdev *cdev;
	110	int flags;
	111	#define ACPI_EVF_NONE 0 /* /dev/apm semantics */
	112	#define ACPI_EVF_DEVD 1 /* /dev/acpi is handled via devd(8) */
	113	#define ACPI_EVF_WRITE 2 /* Device instance is opened writable. */
	114	int notify_status;
	115	#define APM_EV_NONE 0 /* Device not yet aware of pending sleep. */
	116	#define APM_EV_NOTIFIED 1 /* Device saw next sleep state. */
	117	#define APM_EV_ACKED 2 /* Device agreed sleep can occur. */
	118	struct acpi_softc *acpi_sc;
	119	};
	120
	121	#define ACPI_PRW_MAX_POWERRES 8
	122
49e48b8a MD	123	struct acpi_prw_data {
	124	ACPI_HANDLE gpe_handle;
	125	int gpe_bit;
	126	int lowest_wake;
10f97674 AP	127	ACPI_OBJECT power_res[ACPI_PRW_MAX_POWERRES];
10f97674 AP	128	int power_res_count;
5ed44076 MD	129	};
5ed44076 MD	130
49e48b8a	131	/* Flags for each device defined in the AML namespace. */
10f97674 AP	132	#define ACPI_FLAG_WAKE_ENABLED 0x1
	133
	134	/* Macros for extracting parts of a PCI address from an _ADR value. */
	135	#define ACPI_ADR_PCI_SLOT(adr) (((adr) & 0xffff0000) >> 16)
	136	#define ACPI_ADR_PCI_FUNC(adr) ((adr) & 0xffff)
49e48b8a	137
5ed44076	138	/*
10f97674 AP	139	* Entry points to ACPI from above are global functions defined in this
	140	* file, sysctls, and I/O on the control device. Entry points from below
	141	* are interrupts (the SCI), notifies, task queue threads, and the thermal
	142	* zone polling thread.
	143	*
	144	* ACPI tables and global shared data are protected by a global lock
	145	* (acpi_lock).
	146	*
	147	* Each ACPI device can have its own driver-specific mutex for protecting
	148	* shared access to local data. The ACPI_LOCK macros handle mutexes.
	149	*
	150	* Drivers that need to serialize access to functions (e.g., to route
	151	* interrupts, get/set control paths, etc.) should use the sx lock macros
	152	* (ACPI_SERIAL).
	153	*
	154	* ACPI-CA handles its own locking and should not be called with locks held.
	155	*
	156	* The most complicated path is:
	157	* GPE -> EC runs _Qxx -> _Qxx reads EC space -> GPE
5ed44076	158	*/
10f97674 AP	159	extern struct lock acpi_lock;
	160	/* acpi_thermal does lock recurs on purpose */
	161	/* I bet I should use some other locks here */
	162	#define ACPI_LOCK(sys) lockmgr(&sys##_lock, LK_EXCLUSIVE\|LK_RETRY\|LK_CANRECURSE);
	163	#define ACPI_UNLOCK(sys) lockmgr(&sys##_lock, LK_RELEASE);
	164	#define ACPI_LOCK_ASSERT(sys) KKASSERT(lockstatus(&sys##_lock, curthread) == LK_EXCLUSIVE);
	165	#define ACPI_ASSERTLOCK ACPI_LOCK_ASSERT
	166	#define ACPI_LOCK_DECL(sys, name) static struct lock sys##_lock;
	167	#define ACPI_LOCK_INIT(sys, name) lockinit(&sys##_lock, name, 0, 0);
	168
5c7ffd75 AP	169	#define ACPI_SERIAL_INIT(sys) lockinit(&sys##_serial, #sys, 0, 0);
	170	#define ACPI_SERIAL_BEGIN(sys) lockmgr(&sys##_serial, LK_EXCLUSIVE\|LK_RETRY);
	171	#define ACPI_SERIAL_END(sys) lockmgr(&sys##_serial, LK_RELEASE);
	172	#define ACPI_SERIAL_ASSERT(sys) KKASSERT(lockstatus(&sys##_serial, curthread) == LK_EXCLUSIVE);
	173	#define ACPI_SERIAL_DECL(sys, name) static struct lock sys##_serial;
5ed44076 MD	174	/*
	175	* ACPI CA does not define layers for non-ACPI CA drivers.
	176	* We define some here within the range provided.
	177	*/
f9d8cd12 MD	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
5ed44076 MD	185	#define ACPI_PROCESSOR 0x00800000
5ed44076 MD	186	#define ACPI_THERMAL 0x01000000
f9d8cd12	187	#define ACPI_TIMER 0x02000000
1abcfdcd	188	#define ACPI_OEM 0x04000000
5ed44076 MD	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	/*
5ebadb2c HT	198	* Various features and capabilities for the acpi_get_features() method.
5ebadb2c HT	199	* In particular, these are used for the ACPI 3.0 _PDC and _OSC methods.
10f97674	200	* See the Intel document titled "Processor Driver Capabilities Bit
47cf4819	201	* Definitions", number 302223-005.
5ebadb2c	202	*/
47cf4819 SZ	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 */
93fef4e3 SZ	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 */
47cf4819 SZ	211	#define ACPI_PDC_MP_C1_NATIVE (1 << 8) /* MP C1 support other than halt */
47cf4819 SZ	212	#define ACPI_PDC_MP_C2C3_NATIVE (1 << 9) /* MP C2 and C3 support */
93fef4e3	213	#define ACPI_PDC_PX_HWCOORD (1 << 11)/* Hardware coordination of Px */
5ebadb2c HT	214
5ebadb2c HT	215	/*
10f97674 AP	216	* Quirk flags.
	217	*
	218	* ACPI_Q_BROKEN: Disables all ACPI support.
	219	* ACPI_Q_TIMER: Disables support for the ACPI timer.
	220	* ACPI_Q_MADT_IRQ0: Specifies that ISA IRQ 0 is wired up to pin 0 of the
	221	* first APIC and that the MADT should force that by ignoring the PC-AT
	222	* compatible flag and ignoring overrides that redirect IRQ 0 to pin 2.
	223	*/
	224	extern int acpi_quirks;
	225	#define ACPI_Q_OK 0
	226	#define ACPI_Q_BROKEN (1 << 0)
	227	#define ACPI_Q_TIMER (1 << 1)
	228	#define ACPI_Q_MADT_IRQ0 (1 << 2)
	229
	230	/*
5ed44076 MD	231	* Note that the low ivar values are reserved to provide
	232	* interface compatibility with ISA drivers which can also
	233	* attach to ACPI.
	234	*/
	235	#define ACPI_IVAR_HANDLE 0x100
	236	#define ACPI_IVAR_MAGIC 0x101
	237	#define ACPI_IVAR_PRIVATE 0x102
10f97674	238	#define ACPI_IVAR_FLAGS 0x103
5ed44076	239
49e48b8a MD	240	/*
	241	* Accessor functions for our ivars. Default value for BUS_READ_IVAR is
	242	* (type) 0. The <sys/bus.h> accessor functions don't check return values.
	243	*/
	244	#define __ACPI_BUS_ACCESSOR(varp, var, ivarp, ivar, type) \
	245	\
	246	static __inline type varp ## _get_ ## var(device_t dev) \
	247	{ \
	248	uintptr_t v = 0; \
	249	BUS_READ_IVAR(device_get_parent(dev), dev, \
	250	ivarp ## _IVAR_ ## ivar, &v); \
	251	return ((type) v); \
	252	} \
	253	\
	254	static __inline void varp ## _set_ ## var(device_t dev, type t) \
	255	{ \
	256	uintptr_t v = (uintptr_t) t; \
	257	BUS_WRITE_IVAR(device_get_parent(dev), dev, \
	258	ivarp ## _IVAR_ ## ivar, v); \
f9d8cd12 MD	259	}
f9d8cd12 MD	260
49e48b8a	261	__ACPI_BUS_ACCESSOR(acpi, handle, ACPI, HANDLE, ACPI_HANDLE)
10f97674	262	__ACPI_BUS_ACCESSOR(acpi, magic, ACPI, MAGIC, uintptr_t)
49e48b8a	263	__ACPI_BUS_ACCESSOR(acpi, private, ACPI, PRIVATE, void *)
10f97674	264	__ACPI_BUS_ACCESSOR(acpi, flags, ACPI, FLAGS, int)
f9d8cd12	265
29bac728	266	void acpi_fake_objhandler(ACPI_HANDLE h, void *data);
c8b4f0e6 YT	267	static __inline device_t
	268	acpi_get_device(ACPI_HANDLE handle)
	269	{
	270	void *dev = NULL;
	271	AcpiGetData(handle, acpi_fake_objhandler, &dev);
	272	return ((device_t)dev);
	273	}
	274
f9d8cd12 MD	275	static __inline ACPI_OBJECT_TYPE
	276	acpi_get_type(device_t dev)
	277	{
	278	ACPI_HANDLE h;
	279	ACPI_OBJECT_TYPE t;
	280
	281	if ((h = acpi_get_handle(dev)) == NULL)
	282	return (ACPI_TYPE_NOT_FOUND);
	283	if (AcpiGetType(h, &t) != AE_OK)
	284	return (ACPI_TYPE_NOT_FOUND);
	285	return (t);
	286	}
5ed44076 MD	287
5ed44076 MD	288	#ifdef ACPI_DEBUGGER
49e48b8a	289	void acpi_EnterDebugger(void);
5ed44076 MD	290	#endif
	291
	292	#ifdef ACPI_DEBUG
	293	#include <sys/cons.h>
10f97674	294	#define STEP(x) do {printf x, printf("\n"); cngetc();} while (0)
5ed44076 MD	295	#else
	296	#define STEP(x)
	297	#endif
	298
	299	#define ACPI_VPRINT(dev, acpi_sc, x...) do { \
	300	if (acpi_get_verbose(acpi_sc)) \
	301	device_printf(dev, x); \
	302	} while (0)
	303
10f97674 AP	304	/* Values for the device _STA (status) method. */
	305	#define ACPI_STA_PRESENT (1 << 0)
	306	#define ACPI_STA_ENABLED (1 << 1)
	307	#define ACPI_STA_SHOW_IN_UI (1 << 2)
	308	#define ACPI_STA_FUNCTIONAL (1 << 3)
	309	#define ACPI_STA_BATT_PRESENT (1 << 4)
	310
	311	#define ACPI_DEVINFO_PRESENT(x, flags) \
	312	(((x) & (flags)) == (flags))
	313	#define ACPI_DEVICE_PRESENT(x) \
	314	ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT \| ACPI_STA_FUNCTIONAL)
	315	#define ACPI_BATTERY_PRESENT(x) \
	316	ACPI_DEVINFO_PRESENT(x, ACPI_STA_PRESENT \| ACPI_STA_FUNCTIONAL \| \
	317	ACPI_STA_BATT_PRESENT)
	318
49e48b8a MD	319	BOOLEAN acpi_DeviceIsPresent(device_t dev);
49e48b8a MD	320	BOOLEAN acpi_BatteryIsPresent(device_t dev);
49e48b8a MD	321	ACPI_STATUS acpi_GetHandleInScope(ACPI_HANDLE parent, char *path,
	322	ACPI_HANDLE *result);
	323	uint32_t acpi_TimerDelta(uint32_t end, uint32_t start);
	324	ACPI_BUFFER *acpi_AllocBuffer(int size);
	325	ACPI_STATUS acpi_ConvertBufferToInteger(ACPI_BUFFER *bufp,
	326	UINT32 *number);
	327	ACPI_STATUS acpi_GetInteger(ACPI_HANDLE handle, char *path,
	328	UINT32 *number);
	329	ACPI_STATUS acpi_SetInteger(ACPI_HANDLE handle, char *path,
	330	UINT32 number);
	331	ACPI_STATUS acpi_ForeachPackageObject(ACPI_OBJECT *obj,
	332	void (func)(ACPI_OBJECT comp, void arg), void arg);
	333	ACPI_STATUS acpi_FindIndexedResource(ACPI_BUFFER *buf, int index,
	334	ACPI_RESOURCE **resp);
	335	ACPI_STATUS acpi_AppendBufferResource(ACPI_BUFFER *buf,
	336	ACPI_RESOURCE *res);
49e48b8a	337	ACPI_STATUS acpi_SetIntrModel(int model);
10f97674 AP	338	int acpi_ReqSleepState(struct acpi_softc *sc, int state);
10f97674 AP	339	int acpi_AckSleepState(struct apm_clone_data *clone, int error);
49e48b8a	340	ACPI_STATUS acpi_SetSleepState(struct acpi_softc *sc, int state);
49e48b8a	341	int acpi_wake_set_enable(device_t dev, int enable);
10f97674	342	int acpi_parse_prw(ACPI_HANDLE h, struct acpi_prw_data *prw);
49e48b8a	343	ACPI_STATUS acpi_Startup(void);
49e48b8a MD	344	void acpi_UserNotify(const char *subsystem, ACPI_HANDLE h,
49e48b8a MD	345	uint8_t notify);
10f97674 AP	346	int acpi_bus_alloc_gas(device_t dev, int type, int rid,
	347	ACPI_GENERIC_ADDRESS gas, struct resource *res,
	348	u_int flags);
5ed44076 MD	349
5ed44076 MD	350	struct acpi_parse_resource_set {
f9d8cd12	351	void (set_init)(device_t dev, void arg, void **context);
5ed44076	352	void (set_done)(device_t dev, void context);
49e48b8a MD	353	void (set_ioport)(device_t dev, void context, uint32_t base,
	354	uint32_t length);
	355	void (set_iorange)(device_t dev, void context, uint32_t low,
	356	uint32_t high, uint32_t length, uint32_t align);
	357	void (set_memory)(device_t dev, void context, uint32_t base,
	358	uint32_t length);
	359	void (set_memoryrange)(device_t dev, void context, uint32_t low,
	360	uint32_t high, uint32_t length, uint32_t align);
e1eeedd0	361	void (set_irq)(device_t dev, void context, u_int8_t *irq,
49e48b8a	362	int count, int trig, int pol);
e1eeedd0 YT	363	void (set_ext_irq)(device_t dev, void context, u_int32_t *irq,
	364	int count, int trig, int pol);
	365	void (set_drq)(device_t dev, void context, u_int8_t *drq,
49e48b8a	366	int count);
10f97674	367	void (set_start_dependent)(device_t dev, void context,
49e48b8a	368	int preference);
10f97674	369	void (set_end_dependent)(device_t dev, void context);
5ed44076 MD	370	};
5ed44076 MD	371
49e48b8a	372	extern struct acpi_parse_resource_set acpi_res_parse_set;
10f97674 AP	373
	374	void acpi_config_intr(device_t dev, ACPI_RESOURCE *res);
	375	ACPI_STATUS acpi_lookup_irq_resource(device_t dev, int rid,
	376	struct resource res, ACPI_RESOURCE acpi_res);
49e48b8a MD	377	ACPI_STATUS acpi_parse_resources(device_t dev, ACPI_HANDLE handle,
49e48b8a MD	378	struct acpi_parse_resource_set set, void arg);
5ed44076 MD	379
5ed44076 MD	380	/* ACPI event handling */
49e48b8a MD	381	UINT32 acpi_event_power_button_sleep(void *context);
	382	UINT32 acpi_event_power_button_wake(void *context);
	383	UINT32 acpi_event_sleep_button_sleep(void *context);
	384	UINT32 acpi_event_sleep_button_wake(void *context);
5ed44076 MD	385
	386	#define ACPI_EVENT_PRI_FIRST 0
	387	#define ACPI_EVENT_PRI_DEFAULT 10000
	388	#define ACPI_EVENT_PRI_LAST 20000
	389
	390	typedef void (acpi_event_handler_t)(void , int);
	391
	392	EVENTHANDLER_DECLARE(acpi_sleep_event, acpi_event_handler_t);
	393	EVENTHANDLER_DECLARE(acpi_wakeup_event, acpi_event_handler_t);
	394
	395	/* Device power control. */
10f97674	396	ACPI_STATUS acpi_pwr_wake_enable(ACPI_HANDLE consumer, int enable);
49e48b8a	397	ACPI_STATUS acpi_pwr_switch_consumer(ACPI_HANDLE consumer, int state);
5ed44076 MD	398
	399	/* Misc. */
	400	static __inline struct acpi_softc *
	401	acpi_device_get_parent_softc(device_t child)
	402	{
	403	device_t parent;
	404
	405	parent = device_get_parent(child);
	406	if (parent == NULL)
	407	return (NULL);
	408	return (device_get_softc(parent));
	409	}
	410
	411	static __inline int
	412	acpi_get_verbose(struct acpi_softc *sc)
	413	{
	414	if (sc)
	415	return (sc->acpi_verbose);
	416	return (0);
	417	}
	418
49e48b8a MD	419	char *acpi_name(ACPI_HANDLE handle);
	420	int acpi_avoid(ACPI_HANDLE handle);
	421	int acpi_disabled(char *subsys);
2df6e324	422	int acpi_enabled(char *subsys);
49e48b8a MD	423	int acpi_machdep_init(device_t dev);
	424	void acpi_install_wakeup_handler(struct acpi_softc *sc);
	425	int acpi_sleep_machdep(struct acpi_softc *sc, int state);
10f97674 AP	426	int acpi_table_quirks(int *quirks);
10f97674 AP	427	int acpi_machdep_quirks(int *quirks);
5ed44076 MD	428
	429	/* Battery Abstraction. */
	430	struct acpi_battinfo;
5ed44076	431
7d58d14b HT	432	int acpi_battery_register(device_t dev);
7d58d14b HT	433	int acpi_battery_remove(device_t dev);
49e48b8a MD	434	int acpi_battery_get_units(void);
49e48b8a MD	435	int acpi_battery_get_info_expire(void);
7d58d14b HT	436	int acpi_battery_bst_valid(struct acpi_bst *bst);
	437	int acpi_battery_bif_valid(struct acpi_bif *bif);
	438	int acpi_battery_get_battinfo(device_t dev,
	439	struct acpi_battinfo *info);
5ed44076 MD	440
5ed44076 MD	441	/* Embedded controller. */
49e48b8a	442	void acpi_ec_ecdt_probe(device_t);
5ed44076 MD	443
5ed44076 MD	444	/* AC adapter interface. */
49e48b8a	445	int acpi_acad_get_acline(int *);
5ed44076 MD	446
5ed44076 MD	447	/* Package manipulation convenience functions. */
10f97674 AP	448	#define ACPI_PKG_VALID(pkg, size) \
	449	((pkg) != NULL && (pkg)->Type == ACPI_TYPE_PACKAGE && \
	450	(pkg)->Package.Count >= (size))
	451	#define ACPI_PKG_VALID_EQ(pkg, size) \
	452	(ACPI_PKG_VALID((pkg), (size)) && (pkg)->Package.Count == (size))
5ed44076 MD	453	int acpi_PkgInt(ACPI_OBJECT res, int idx, ACPI_INTEGER dst);
	454	int acpi_PkgInt32(ACPI_OBJECT res, int idx, uint32_t dst);
	455	int acpi_PkgStr(ACPI_OBJECT res, int idx, void dst, size_t size);
10f97674 AP	456	int acpi_PkgGas(device_t dev, ACPI_OBJECT res, int idx, int type,
10f97674 AP	457	int rid, struct resource *dst, u_int flags);
78e2ad38 SZ	458	int acpi_PkgRawGas(ACPI_OBJECT *res, int idx,
78e2ad38 SZ	459	ACPI_GENERIC_ADDRESS *gas);
f9d8cd12	460	ACPI_HANDLE acpi_GetReference(ACPI_HANDLE scope, ACPI_OBJECT *obj);
5ed44076	461	/* ACPI task kernel thread initialization. */
10f97674 AP	462	int acpi_task_thread_init(void);
	463	extern BOOLEAN acpi_MatchHid(ACPI_HANDLE h, const char *hid);
	464	/*
	465	* Base level for BUS_ADD_CHILD. Special devices are added at orders less
	466	* than this, and normal devices at or above this level. This keeps the
	467	* probe order sorted so that things like sysresource are available before
	468	* their children need them.
	469	*/
	470	#define ACPI_DEV_BASE_ORDER 10
	471
	472	/* Default number of task queue threads to start. */
	473	#ifndef ACPI_MAX_THREADS
	474	#define ACPI_MAX_THREADS 3
	475	#endif
	476
	477	/* Use the device logging level for ktr(4). */
	478	#define KTR_ACPI KTR_DEV
	479
	480	#endif /* _KERNEL */
	481	#endif /* !_ACPIVAR_H_ */