[linux.git] / include / acpi / acpi_bus.h

/*
 *  acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
 *
 *  Copyright (C) 2001, 2002 Andy Grover <[email protected]>
 *  Copyright (C) 2001, 2002 Paul Diefenbaugh <[email protected]>
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or (at
 *  your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along
 *  with this program; if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 */

#ifndef __ACPI_BUS_H__
#define __ACPI_BUS_H__

#include <linux/device.h>

#include <acpi/acpi.h>

/* TBD: Make dynamic */
#define ACPI_MAX_HANDLES	10
struct acpi_handle_list {
	u32 count;
	acpi_handle handles[ACPI_MAX_HANDLES];
};

/* acpi_utils.h */
acpi_status
acpi_extract_package(union acpi_object *package,
		     struct acpi_buffer *format, struct acpi_buffer *buffer);
acpi_status
acpi_evaluate_integer(acpi_handle handle,
		      acpi_string pathname,
		      struct acpi_object_list *arguments, unsigned long long *data);
acpi_status
acpi_evaluate_reference(acpi_handle handle,
			acpi_string pathname,
			struct acpi_object_list *arguments,
			struct acpi_handle_list *list);

#ifdef CONFIG_ACPI

#include <linux/proc_fs.h>

#define ACPI_BUS_FILE_ROOT	"acpi"
extern struct proc_dir_entry *acpi_root_dir;

enum acpi_bus_removal_type {
	ACPI_BUS_REMOVAL_NORMAL = 0,
	ACPI_BUS_REMOVAL_EJECT,
	ACPI_BUS_REMOVAL_SUPRISE,
	ACPI_BUS_REMOVAL_TYPE_COUNT
};

enum acpi_bus_device_type {
	ACPI_BUS_TYPE_DEVICE = 0,
	ACPI_BUS_TYPE_POWER,
	ACPI_BUS_TYPE_PROCESSOR,
	ACPI_BUS_TYPE_THERMAL,
	ACPI_BUS_TYPE_POWER_BUTTON,
	ACPI_BUS_TYPE_SLEEP_BUTTON,
	ACPI_BUS_DEVICE_TYPE_COUNT
};

struct acpi_driver;
struct acpi_device;

/*
 * ACPI Driver
 * -----------
 */

typedef int (*acpi_op_add) (struct acpi_device * device);
typedef int (*acpi_op_remove) (struct acpi_device * device, int type);
typedef int (*acpi_op_start) (struct acpi_device * device);
typedef int (*acpi_op_suspend) (struct acpi_device * device,
				pm_message_t state);
typedef int (*acpi_op_resume) (struct acpi_device * device);
typedef int (*acpi_op_bind) (struct acpi_device * device);
typedef int (*acpi_op_unbind) (struct acpi_device * device);
typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);

struct acpi_bus_ops {
	u32 acpi_op_add:1;
	u32 acpi_op_start:1;
};

struct acpi_device_ops {
	acpi_op_add add;
	acpi_op_remove remove;
	acpi_op_start start;
	acpi_op_suspend suspend;
	acpi_op_resume resume;
	acpi_op_bind bind;
	acpi_op_unbind unbind;
	acpi_op_notify notify;
};

#define ACPI_DRIVER_ALL_NOTIFY_EVENTS	0x1	/* system AND device events */

struct acpi_driver {
	char name[80];
	char class[80];
	const struct acpi_device_id *ids; /* Supported Hardware IDs */
	unsigned int flags;
	struct acpi_device_ops ops;
	struct device_driver drv;
	struct module *owner;
};

/*
 * ACPI Device
 * -----------
 */

/* Status (_STA) */

struct acpi_device_status {
	u32 present:1;
	u32 enabled:1;
	u32 show_in_ui:1;
	u32 functional:1;
	u32 battery_present:1;
	u32 reserved:27;
};

/* Flags */

struct acpi_device_flags {
	u32 dynamic_status:1;
	u32 bus_address:1;
	u32 removable:1;
	u32 ejectable:1;
	u32 lockable:1;
	u32 suprise_removal_ok:1;
	u32 power_manageable:1;
	u32 performance_manageable:1;
	u32 wake_capable:1;	/* Wakeup(_PRW) supported? */
	u32 force_power_state:1;
	u32 reserved:22;
};

/* File System */

struct acpi_device_dir {
	struct proc_dir_entry *entry;
};

#define acpi_device_dir(d)	((d)->dir.entry)

/* Plug and Play */

typedef char acpi_bus_id[8];
typedef unsigned long acpi_bus_address;
typedef char acpi_device_name[40];
typedef char acpi_device_class[20];

struct acpi_hardware_id {
	struct list_head list;
	char *id;
};

struct acpi_device_pnp {
	acpi_bus_id bus_id;	/* Object name */
	acpi_bus_address bus_address;	/* _ADR */
	char *unique_id;	/* _UID */
	struct list_head ids;		/* _HID and _CIDs */
	acpi_device_name device_name;	/* Driver-determined */
	acpi_device_class device_class;	/*        "          */
};

#define acpi_device_bid(d)	((d)->pnp.bus_id)
#define acpi_device_adr(d)	((d)->pnp.bus_address)
const char *acpi_device_hid(struct acpi_device *device);
#define acpi_device_name(d)	((d)->pnp.device_name)
#define acpi_device_class(d)	((d)->pnp.device_class)

/* Power Management */

struct acpi_device_power_flags {
	u32 explicit_get:1;	/* _PSC present? */
	u32 power_resources:1;	/* Power resources */
	u32 inrush_current:1;	/* Serialize Dx->D0 */
	u32 power_removed:1;	/* Optimize Dx->D0 */
	u32 reserved:28;
};

struct acpi_device_power_state {
	struct {
		u8 valid:1;
		u8 explicit_set:1;	/* _PSx present? */
		u8 reserved:6;
	} flags;
	int power;		/* % Power (compared to D0) */
	int latency;		/* Dx->D0 time (microseconds) */
	struct acpi_handle_list resources;	/* Power resources referenced */
};

struct acpi_device_power {
	int state;		/* Current state */
	struct acpi_device_power_flags flags;
	struct acpi_device_power_state states[4];	/* Power states (D0-D3) */
};

/* Performance Management */

struct acpi_device_perf_flags {
	u8 reserved:8;
};

struct acpi_device_perf_state {
	struct {
		u8 valid:1;
		u8 reserved:7;
	} flags;
	u8 power;		/* % Power (compared to P0) */
	u8 performance;		/* % Performance (    "   ) */
	int latency;		/* Px->P0 time (microseconds) */
};

struct acpi_device_perf {
	int state;
	struct acpi_device_perf_flags flags;
	int state_count;
	struct acpi_device_perf_state *states;
};

/* Wakeup Management */
struct acpi_device_wakeup_flags {
	u8 valid:1;		/* Can successfully enable wakeup? */
	u8 run_wake:1;		/* Run-Wake GPE devices */
	u8 always_enabled:1;	/* Run-wake devices that are always enabled */
	u8 notifier_present:1;  /* Wake-up notify handler has been installed */
};

struct acpi_device_wakeup_state {
	u8 enabled:1;
};

struct acpi_device_wakeup {
	acpi_handle gpe_device;
	u64 gpe_number;
	u64 sleep_state;
	struct acpi_handle_list resources;
	struct acpi_device_wakeup_state state;
	struct acpi_device_wakeup_flags flags;
	int prepare_count;
	int run_wake_count;
};

/* Device */

struct acpi_device {
	int device_type;
	acpi_handle handle;		/* no handle for fixed hardware */
	struct acpi_device *parent;
	struct list_head children;
	struct list_head node;
	struct list_head wakeup_list;
	struct acpi_device_status status;
	struct acpi_device_flags flags;
	struct acpi_device_pnp pnp;
	struct acpi_device_power power;
	struct acpi_device_wakeup wakeup;
	struct acpi_device_perf performance;
	struct acpi_device_dir dir;
	struct acpi_device_ops ops;
	struct acpi_driver *driver;
	void *driver_data;
	struct device dev;
	struct acpi_bus_ops bus_ops;	/* workaround for different code path for hotplug */
	enum acpi_bus_removal_type removal_type;	/* indicate for different removal type */
};

static inline void *acpi_driver_data(struct acpi_device *d)
{
	return d->driver_data;
}

#define to_acpi_device(d)	container_of(d, struct acpi_device, dev)
#define to_acpi_driver(d)	container_of(d, struct acpi_driver, drv)

/* acpi_device.dev.bus == &acpi_bus_type */
extern struct bus_type acpi_bus_type;

/*
 * Events
 * ------
 */

struct acpi_bus_event {
	struct list_head node;
	acpi_device_class device_class;
	acpi_bus_id bus_id;
	u32 type;
	u32 data;
};

extern struct kobject *acpi_kobj;
extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
void acpi_bus_private_data_handler(acpi_handle, void *);
int acpi_bus_get_private_data(acpi_handle, void **);
extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
extern int register_acpi_notifier(struct notifier_block *);
extern int unregister_acpi_notifier(struct notifier_block *);

extern int register_acpi_bus_notifier(struct notifier_block *nb);
extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
/*
 * External Functions
 */

int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
void acpi_bus_data_handler(acpi_handle handle, void *context);
acpi_status acpi_bus_get_status_handle(acpi_handle handle,
				       unsigned long long *sta);
int acpi_bus_get_status(struct acpi_device *device);
int acpi_bus_get_power(acpi_handle handle, int *state);
int acpi_bus_set_power(acpi_handle handle, int state);
bool acpi_bus_power_manageable(acpi_handle handle);
bool acpi_bus_can_wakeup(acpi_handle handle);
#ifdef CONFIG_ACPI_PROC_EVENT
int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
int acpi_bus_generate_proc_event4(const char *class, const char *bid, u8 type, int data);
int acpi_bus_receive_event(struct acpi_bus_event *event);
#else
static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
	{ return 0; }
#endif
int acpi_bus_register_driver(struct acpi_driver *driver);
void acpi_bus_unregister_driver(struct acpi_driver *driver);
int acpi_bus_add(struct acpi_device **child, struct acpi_device *parent,
		 acpi_handle handle, int type);
int acpi_bus_trim(struct acpi_device *start, int rmdevice);
int acpi_bus_start(struct acpi_device *device);
acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
int acpi_match_device_ids(struct acpi_device *device,
			  const struct acpi_device_id *ids);
int acpi_create_dir(struct acpi_device *);
void acpi_remove_dir(struct acpi_device *);

/*
 * Bind physical devices with ACPI devices
 */
struct acpi_bus_type {
	struct list_head list;
	struct bus_type *bus;
	/* For general devices under the bus */
	int (*find_device) (struct device *, acpi_handle *);
	/* For bridges, such as PCI root bridge, IDE controller */
	int (*find_bridge) (struct device *, acpi_handle *);
};
int register_acpi_bus_type(struct acpi_bus_type *);
int unregister_acpi_bus_type(struct acpi_bus_type *);
struct device *acpi_get_physical_device(acpi_handle);

struct acpi_pci_root {
	struct list_head node;
	struct acpi_device * device;
	struct acpi_pci_id id;
	struct pci_bus *bus;
	u16 segment;
	struct resource secondary;	/* downstream bus range */

	u32 osc_support_set;	/* _OSC state of support bits */
	u32 osc_control_set;	/* _OSC state of control bits */
};

/* helper */
acpi_handle acpi_get_child(acpi_handle, u64);
int acpi_is_root_bridge(acpi_handle);
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))

int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
int acpi_disable_wakeup_device_power(struct acpi_device *dev);

#ifdef CONFIG_PM_OPS
int acpi_pm_device_sleep_state(struct device *, int *);
#else
static inline int acpi_pm_device_sleep_state(struct device *d, int *p)
{
	if (p)
		*p = ACPI_STATE_D0;
	return ACPI_STATE_D3;
}
#endif

#ifdef CONFIG_PM_SLEEP
int acpi_pm_device_sleep_wake(struct device *, bool);
#else
static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
{
	return -ENODEV;
}
#endif

#endif				/* CONFIG_ACPI */

#endif /*__ACPI_BUS_H__*/
Commit	Line	Data
1da177e4 LT	1	/*
	2	* acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
	3	*
	4	* Copyright (C) 2001, 2002 Andy Grover <[email protected]>
	5	* Copyright (C) 2001, 2002 Paul Diefenbaugh <[email protected]>
	6	*
	7	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or (at
	12	* your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful, but
	15	* WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License along
	20	* with this program; if not, write to the Free Software Foundation, Inc.,
	21	* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
	22	*
	23	* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	24	*/
	25
	26	#ifndef __ACPI_BUS_H__
	27	#define __ACPI_BUS_H__
	28
5b327265	29	#include <linux/device.h>
1da177e4 LT	30
	31	#include <acpi/acpi.h>
	32
1da177e4 LT	33	/* TBD: Make dynamic */
	34	#define ACPI_MAX_HANDLES 10
	35	struct acpi_handle_list {
4be44fcd LB	36	u32 count;
4be44fcd LB	37	acpi_handle handles[ACPI_MAX_HANDLES];
1da177e4 LT	38	};
1da177e4 LT	39
1da177e4 LT	40	/* acpi_utils.h */
1da177e4 LT	41	acpi_status
4be44fcd LB	42	acpi_extract_package(union acpi_object *package,
4be44fcd LB	43	struct acpi_buffer format, struct acpi_buffer buffer);
1da177e4	44	acpi_status
4be44fcd LB	45	acpi_evaluate_integer(acpi_handle handle,
4be44fcd LB	46	acpi_string pathname,
27663c58	47	struct acpi_object_list arguments, unsigned long long data);
1da177e4	48	acpi_status
4be44fcd LB	49	acpi_evaluate_reference(acpi_handle handle,
	50	acpi_string pathname,
	51	struct acpi_object_list *arguments,
	52	struct acpi_handle_list *list);
1da177e4	53
76f58584	54	#ifdef CONFIG_ACPI
1da177e4 LT	55
	56	#include <linux/proc_fs.h>
	57
	58	#define ACPI_BUS_FILE_ROOT "acpi"
4be44fcd	59	extern struct proc_dir_entry *acpi_root_dir;
1da177e4 LT	60
1da177e4 LT	61	enum acpi_bus_removal_type {
4be44fcd	62	ACPI_BUS_REMOVAL_NORMAL = 0,
1da177e4 LT	63	ACPI_BUS_REMOVAL_EJECT,
	64	ACPI_BUS_REMOVAL_SUPRISE,
	65	ACPI_BUS_REMOVAL_TYPE_COUNT
	66	};
	67
	68	enum acpi_bus_device_type {
4be44fcd	69	ACPI_BUS_TYPE_DEVICE = 0,
1da177e4 LT	70	ACPI_BUS_TYPE_POWER,
	71	ACPI_BUS_TYPE_PROCESSOR,
	72	ACPI_BUS_TYPE_THERMAL,
1da177e4 LT	73	ACPI_BUS_TYPE_POWER_BUTTON,
	74	ACPI_BUS_TYPE_SLEEP_BUTTON,
	75	ACPI_BUS_DEVICE_TYPE_COUNT
	76	};
	77
	78	struct acpi_driver;
	79	struct acpi_device;
	80
1da177e4 LT	81	/*
	82	* ACPI Driver
	83	* -----------
	84	*/
	85
4be44fcd LB	86	typedef int (acpi_op_add) (struct acpi_device device);
4be44fcd LB	87	typedef int (acpi_op_remove) (struct acpi_device device, int type);
4be44fcd	88	typedef int (acpi_op_start) (struct acpi_device device);
fd350943 LB	89	typedef int (acpi_op_suspend) (struct acpi_device device,
fd350943 LB	90	pm_message_t state);
5d9464a4	91	typedef int (acpi_op_resume) (struct acpi_device device);
4be44fcd LB	92	typedef int (acpi_op_bind) (struct acpi_device device);
4be44fcd LB	93	typedef int (acpi_op_unbind) (struct acpi_device device);
46ec8598	94	typedef void (acpi_op_notify) (struct acpi_device device, u32 event);
1da177e4	95
3fb02738	96	struct acpi_bus_ops {
4be44fcd	97	u32 acpi_op_add:1;
4be44fcd	98	u32 acpi_op_start:1;
3fb02738 RS	99	};
3fb02738 RS	100
1da177e4	101	struct acpi_device_ops {
4be44fcd LB	102	acpi_op_add add;
4be44fcd LB	103	acpi_op_remove remove;
4be44fcd	104	acpi_op_start start;
4be44fcd LB	105	acpi_op_suspend suspend;
4be44fcd LB	106	acpi_op_resume resume;
4be44fcd LB	107	acpi_op_bind bind;
4be44fcd LB	108	acpi_op_unbind unbind;
46ec8598	109	acpi_op_notify notify;
1da177e4 LT	110	};
1da177e4 LT	111
6d278131 BH	112	#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
6d278131 BH	113
1da177e4	114	struct acpi_driver {
4be44fcd LB	115	char name[80];
4be44fcd LB	116	char class[80];
8c8eb78f	117	const struct acpi_device_id ids; / Supported Hardware IDs */
6d278131	118	unsigned int flags;
4be44fcd	119	struct acpi_device_ops ops;
d43ec68e	120	struct device_driver drv;
1890a97a	121	struct module *owner;
1da177e4 LT	122	};
	123
	124	/*
	125	* ACPI Device
	126	* -----------
	127	*/
	128
	129	/* Status (_STA) */
	130
	131	struct acpi_device_status {
4be44fcd LB	132	u32 present:1;
	133	u32 enabled:1;
	134	u32 show_in_ui:1;
	135	u32 functional:1;
	136	u32 battery_present:1;
	137	u32 reserved:27;
1da177e4 LT	138	};
1da177e4 LT	139
1da177e4 LT	140	/* Flags */
	141
	142	struct acpi_device_flags {
4be44fcd	143	u32 dynamic_status:1;
4be44fcd	144	u32 bus_address:1;
4be44fcd LB	145	u32 removable:1;
	146	u32 ejectable:1;
	147	u32 lockable:1;
	148	u32 suprise_removal_ok:1;
	149	u32 power_manageable:1;
	150	u32 performance_manageable:1;
	151	u32 wake_capable:1; /* Wakeup(_PRW) supported? */
ec68373c	152	u32 force_power_state:1;
6622d8ce	153	u32 reserved:22;
1da177e4 LT	154	};
1da177e4 LT	155
1da177e4 LT	156	/* File System */
	157
	158	struct acpi_device_dir {
4be44fcd	159	struct proc_dir_entry *entry;
1da177e4 LT	160	};
	161
	162	#define acpi_device_dir(d) ((d)->dir.entry)
	163
1da177e4 LT	164	/* Plug and Play */
1da177e4 LT	165
24c5c4c2	166	typedef char acpi_bus_id[8];
4be44fcd	167	typedef unsigned long acpi_bus_address;
4be44fcd LB	168	typedef char acpi_device_name[40];
4be44fcd LB	169	typedef char acpi_device_class[20];
1da177e4	170
7f47fa6c BH	171	struct acpi_hardware_id {
	172	struct list_head list;
	173	char *id;
	174	};
	175
1da177e4	176	struct acpi_device_pnp {
4be44fcd LB	177	acpi_bus_id bus_id; /* Object name */
4be44fcd LB	178	acpi_bus_address bus_address; /* _ADR */
15b8dd53	179	char unique_id; / _UID */
7f47fa6c	180	struct list_head ids; /* _HID and _CIDs */
4be44fcd LB	181	acpi_device_name device_name; /* Driver-determined */
4be44fcd LB	182	acpi_device_class device_class; /* " */
1da177e4 LT	183	};
	184
	185	#define acpi_device_bid(d) ((d)->pnp.bus_id)
	186	#define acpi_device_adr(d) ((d)->pnp.bus_address)
620e112c	187	const char acpi_device_hid(struct acpi_device device);
1da177e4 LT	188	#define acpi_device_name(d) ((d)->pnp.device_name)
	189	#define acpi_device_class(d) ((d)->pnp.device_class)
	190
1da177e4 LT	191	/* Power Management */
	192
	193	struct acpi_device_power_flags {
4be44fcd LB	194	u32 explicit_get:1; /* _PSC present? */
	195	u32 power_resources:1; /* Power resources */
	196	u32 inrush_current:1; /* Serialize Dx->D0 */
	197	u32 power_removed:1; /* Optimize Dx->D0 */
	198	u32 reserved:28;
1da177e4 LT	199	};
	200
	201	struct acpi_device_power_state {
	202	struct {
4be44fcd LB	203	u8 valid:1;
	204	u8 explicit_set:1; /* _PSx present? */
	205	u8 reserved:6;
	206	} flags;
	207	int power; /* % Power (compared to D0) */
	208	int latency; /* Dx->D0 time (microseconds) */
	209	struct acpi_handle_list resources; /* Power resources referenced */
1da177e4 LT	210	};
	211
	212	struct acpi_device_power {
4be44fcd	213	int state; /* Current state */
1da177e4	214	struct acpi_device_power_flags flags;
4be44fcd	215	struct acpi_device_power_state states[4]; /* Power states (D0-D3) */
1da177e4 LT	216	};
1da177e4 LT	217
1da177e4 LT	218	/* Performance Management */
	219
	220	struct acpi_device_perf_flags {
4be44fcd	221	u8 reserved:8;
1da177e4 LT	222	};
	223
	224	struct acpi_device_perf_state {
	225	struct {
4be44fcd LB	226	u8 valid:1;
	227	u8 reserved:7;
	228	} flags;
	229	u8 power; /* % Power (compared to P0) */
	230	u8 performance; /* % Performance ( " ) */
	231	int latency; /* Px->P0 time (microseconds) */
1da177e4 LT	232	};
	233
	234	struct acpi_device_perf {
4be44fcd	235	int state;
1da177e4	236	struct acpi_device_perf_flags flags;
4be44fcd	237	int state_count;
1da177e4 LT	238	struct acpi_device_perf_state *states;
	239	};
	240
	241	/* Wakeup Management */
	242	struct acpi_device_wakeup_flags {
4be44fcd LB	243	u8 valid:1; /* Can successfully enable wakeup? */
4be44fcd LB	244	u8 run_wake:1; /* Run-Wake GPE devices */
f517709d	245	u8 always_enabled:1; /* Run-wake devices that are always enabled */
b67ea761	246	u8 notifier_present:1; /* Wake-up notify handler has been installed */
1da177e4 LT	247	};
	248
	249	struct acpi_device_wakeup_state {
4be44fcd	250	u8 enabled:1;
1da177e4 LT	251	};
	252
	253	struct acpi_device_wakeup {
4be44fcd	254	acpi_handle gpe_device;
439913ff LM	255	u64 gpe_number;
439913ff LM	256	u64 sleep_state;
4be44fcd LB	257	struct acpi_handle_list resources;
	258	struct acpi_device_wakeup_state state;
	259	struct acpi_device_wakeup_flags flags;
9b83ccd2	260	int prepare_count;
f517709d	261	int run_wake_count;
1da177e4 LT	262	};
	263
	264	/* Device */
	265
	266	struct acpi_device {
caaa6efb BH	267	int device_type;
caaa6efb BH	268	acpi_handle handle; /* no handle for fixed hardware */
4be44fcd LB	269	struct acpi_device *parent;
	270	struct list_head children;
	271	struct list_head node;
	272	struct list_head wakeup_list;
1da177e4 LT	273	struct acpi_device_status status;
1da177e4 LT	274	struct acpi_device_flags flags;
4be44fcd	275	struct acpi_device_pnp pnp;
1da177e4 LT	276	struct acpi_device_power power;
1da177e4 LT	277	struct acpi_device_wakeup wakeup;
4be44fcd LB	278	struct acpi_device_perf performance;
	279	struct acpi_device_dir dir;
	280	struct acpi_device_ops ops;
	281	struct acpi_driver *driver;
	282	void *driver_data;
5b327265	283	struct device dev;
c4168bff	284	struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */
fd350943	285	enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
1da177e4 LT	286	};
1da177e4 LT	287
db89b4f0 PM	288	static inline void acpi_driver_data(struct acpi_device d)
	289	{
	290	return d->driver_data;
	291	}
	292
d43ec68e PM	293	#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
d43ec68e PM	294	#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
1da177e4	295
55955aad DB	296	/* acpi_device.dev.bus == &acpi_bus_type */
	297	extern struct bus_type acpi_bus_type;
	298
1da177e4 LT	299	/*
	300	* Events
	301	* ------
	302	*/
	303
	304	struct acpi_bus_event {
4be44fcd LB	305	struct list_head node;
	306	acpi_device_class device_class;
	307	acpi_bus_id bus_id;
	308	u32 type;
	309	u32 data;
1da177e4 LT	310	};
1da177e4 LT	311
99e0d2fc	312	extern struct kobject *acpi_kobj;
962ce8ca	313	extern int acpi_bus_generate_netlink_event(const char, const char, u8, int);
8e4319c4	314	void acpi_bus_private_data_handler(acpi_handle, void *);
20733939	315	int acpi_bus_get_private_data(acpi_handle, void **);
9ee85241 ZR	316	extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
	317	extern int register_acpi_notifier(struct notifier_block *);
	318	extern int unregister_acpi_notifier(struct notifier_block *);
6bd00a61 SL	319
	320	extern int register_acpi_bus_notifier(struct notifier_block *nb);
	321	extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
1da177e4 LT	322	/*
	323	* External Functions
	324	*/
	325
	326	int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
8e4319c4	327	void acpi_bus_data_handler(acpi_handle handle, void *context);
402ac536 BH	328	acpi_status acpi_bus_get_status_handle(acpi_handle handle,
402ac536 BH	329	unsigned long long *sta);
4be44fcd LB	330	int acpi_bus_get_status(struct acpi_device *device);
	331	int acpi_bus_get_power(acpi_handle handle, int *state);
	332	int acpi_bus_set_power(acpi_handle handle, int state);
3737b2b1	333	bool acpi_bus_power_manageable(acpi_handle handle);
eb9d0fe4	334	bool acpi_bus_can_wakeup(acpi_handle handle);
14e04fb3 LB	335	#ifdef CONFIG_ACPI_PROC_EVENT
14e04fb3 LB	336	int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
8db85d4c	337	int acpi_bus_generate_proc_event4(const char class, const char bid, u8 type, int data);
4be44fcd	338	int acpi_bus_receive_event(struct acpi_bus_event *event);
14e04fb3 LB	339	#else
	340	static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
	341	{ return 0; }
	342	#endif
4be44fcd	343	int acpi_bus_register_driver(struct acpi_driver *driver);
06ea8e08	344	void acpi_bus_unregister_driver(struct acpi_driver *driver);
4be44fcd LB	345	int acpi_bus_add(struct acpi_device *child, struct acpi_device parent,
4be44fcd LB	346	acpi_handle handle, int type);
ceaba663	347	int acpi_bus_trim(struct acpi_device *start, int rmdevice);
4be44fcd	348	int acpi_bus_start(struct acpi_device *device);
fd350943	349	acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
8c8eb78f TR	350	int acpi_match_device_ids(struct acpi_device *device,
8c8eb78f TR	351	const struct acpi_device_id *ids);
1da177e4 LT	352	int acpi_create_dir(struct acpi_device *);
	353	void acpi_remove_dir(struct acpi_device *);
	354
4e10d12a DSL	355	/*
	356	* Bind physical devices with ACPI devices
	357	*/
4e10d12a	358	struct acpi_bus_type {
4be44fcd LB	359	struct list_head list;
	360	struct bus_type *bus;
	361	/* For general devices under the bus */
	362	int (find_device) (struct device , acpi_handle *);
4e10d12a	363	/* For bridges, such as PCI root bridge, IDE controller */
4be44fcd	364	int (find_bridge) (struct device , acpi_handle *);
4e10d12a DSL	365	};
	366	int register_acpi_bus_type(struct acpi_bus_type *);
	367	int unregister_acpi_bus_type(struct acpi_bus_type *);
	368	struct device *acpi_get_physical_device(acpi_handle);
22c13f9d	369
76d56de5 AC	370	struct acpi_pci_root {
	371	struct list_head node;
	372	struct acpi_device * device;
	373	struct acpi_pci_id id;
	374	struct pci_bus *bus;
	375	u16 segment;
6ad95513	376	struct resource secondary; /* downstream bus range */
76d56de5 AC	377
	378	u32 osc_support_set; /* _OSC state of support bits */
	379	u32 osc_control_set; /* _OSC state of control bits */
76d56de5 AC	380	};
76d56de5 AC	381
4e10d12a	382	/* helper */
439913ff	383	acpi_handle acpi_get_child(acpi_handle, u64);
27558203	384	int acpi_is_root_bridge(acpi_handle);
4e10d12a	385	acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
76d56de5	386	struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
465ae641	387	#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
4e10d12a	388
b67ea761 RW	389	int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
	390	int acpi_disable_wakeup_device_power(struct acpi_device *dev);
	391
761afb86	392	#ifdef CONFIG_PM_OPS
06166780	393	int acpi_pm_device_sleep_state(struct device , int );
761afb86	394	#else
06166780	395	static inline int acpi_pm_device_sleep_state(struct device d, int p)
296699de RW	396	{
	397	if (p)
	398	*p = ACPI_STATE_D0;
	399	return ACPI_STATE_D3;
	400	}
761afb86 RW	401	#endif
	402
	403	#ifdef CONFIG_PM_SLEEP
	404	int acpi_pm_device_sleep_wake(struct device *, bool);
	405	#else
f7a1b860 DH	406	static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
	407	{
	408	return -ENODEV;
	409	}
761afb86	410	#endif
fd4aff1a	411
fd350943	412	#endif /* CONFIG_ACPI */
1da177e4 LT	413
1da177e4 LT	414	#endif /__ACPI_BUS_H__/