[linux-2.6-block.git] / include / acpi / acpi_bus.h

/*
 *  acpi_bus.h - ACPI Bus Driver ($Revision: 22 $)
 *
 *  Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
 *  Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
 *
 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 *
 *  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);

struct acpi_pld {
	unsigned int revision:7; /* 0 */
	unsigned int ignore_colour:1; /* 7 */
	unsigned int colour:24; /* 8 */
	unsigned int width:16; /* 32 */
	unsigned int height:16; /* 48 */
	unsigned int user_visible:1; /* 64 */
	unsigned int dock:1; /* 65 */
	unsigned int lid:1; /* 66 */
	unsigned int panel:3; /* 67 */
	unsigned int vertical_pos:2; /* 70 */
	unsigned int horizontal_pos:2; /* 72 */
	unsigned int shape:4; /* 74 */
	unsigned int group_orientation:1; /* 78 */
	unsigned int group_token:8; /* 79 */
	unsigned int group_position:8; /* 87 */
	unsigned int bay:1; /* 95 */
	unsigned int ejectable:1; /* 96 */
	unsigned int ospm_eject_required:1; /* 97 */
	unsigned int cabinet_number:8; /* 98 */
	unsigned int card_cage_number:8; /* 106 */
	unsigned int reference:1; /* 114 */
	unsigned int rotation:4; /* 115 */
	unsigned int order:5; /* 119 */
	unsigned int reserved:4; /* 124 */
	unsigned int vertical_offset:16; /* 128 */
	unsigned int horizontal_offset:16; /* 144 */
} __attribute__((__packed__));

acpi_status
acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld);
#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 reserved:24;
};

/* 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[ACPI_D_STATE_COUNT];	/* Power states (D0-D3Cold) */
};

/* 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 notifier_present:1;  /* Wake-up notify handler has been installed */
};

struct acpi_device_wakeup {
	acpi_handle gpe_device;
	u64 gpe_number;
	u64 sleep_state;
	struct acpi_handle_list resources;
	struct acpi_device_wakeup_flags flags;
	int prepare_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_set_power(acpi_handle handle, int state);
int acpi_bus_update_power(acpi_handle handle, int *state_p);
bool acpi_bus_power_manageable(acpi_handle handle);
bool acpi_bus_can_wakeup(acpi_handle handle);
int acpi_power_resource_register_device(struct device *dev, acpi_handle handle);
void acpi_power_resource_unregister_device(struct device *dev, 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
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_run_wake(struct device *, bool);
int acpi_pm_device_sleep_wake(struct device *, bool);
#else
static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
{
	return -ENODEV;
}
static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
{
	return -ENODEV;
}
#endif

#else	/* CONFIG_ACPI */

static inline int register_acpi_bus_type(void *bus) { return 0; }
static inline int unregister_acpi_bus_type(void *bus) { return 0; }

#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 <andrew.grover@intel.com>
	5	* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
	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
38ac0f1b MG	54	struct acpi_pld {
	55	unsigned int revision:7; /* 0 */
	56	unsigned int ignore_colour:1; /* 7 */
	57	unsigned int colour:24; /* 8 */
	58	unsigned int width:16; /* 32 */
	59	unsigned int height:16; /* 48 */
	60	unsigned int user_visible:1; /* 64 */
	61	unsigned int dock:1; /* 65 */
	62	unsigned int lid:1; /* 66 */
	63	unsigned int panel:3; /* 67 */
	64	unsigned int vertical_pos:2; /* 70 */
	65	unsigned int horizontal_pos:2; /* 72 */
	66	unsigned int shape:4; /* 74 */
	67	unsigned int group_orientation:1; /* 78 */
	68	unsigned int group_token:8; /* 79 */
	69	unsigned int group_position:8; /* 87 */
	70	unsigned int bay:1; /* 95 */
	71	unsigned int ejectable:1; /* 96 */
	72	unsigned int ospm_eject_required:1; /* 97 */
	73	unsigned int cabinet_number:8; /* 98 */
	74	unsigned int card_cage_number:8; /* 106 */
	75	unsigned int reference:1; /* 114 */
	76	unsigned int rotation:4; /* 115 */
	77	unsigned int order:5; /* 119 */
	78	unsigned int reserved:4; /* 124 */
	79	unsigned int vertical_offset:16; /* 128 */
	80	unsigned int horizontal_offset:16; /* 144 */
	81	} __attribute__((__packed__));
	82
	83	acpi_status
	84	acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld);
76f58584	85	#ifdef CONFIG_ACPI
1da177e4 LT	86
	87	#include <linux/proc_fs.h>
	88
	89	#define ACPI_BUS_FILE_ROOT "acpi"
4be44fcd	90	extern struct proc_dir_entry *acpi_root_dir;
1da177e4 LT	91
1da177e4 LT	92	enum acpi_bus_removal_type {
4be44fcd	93	ACPI_BUS_REMOVAL_NORMAL = 0,
1da177e4 LT	94	ACPI_BUS_REMOVAL_EJECT,
	95	ACPI_BUS_REMOVAL_SUPRISE,
	96	ACPI_BUS_REMOVAL_TYPE_COUNT
	97	};
	98
	99	enum acpi_bus_device_type {
4be44fcd	100	ACPI_BUS_TYPE_DEVICE = 0,
1da177e4 LT	101	ACPI_BUS_TYPE_POWER,
	102	ACPI_BUS_TYPE_PROCESSOR,
	103	ACPI_BUS_TYPE_THERMAL,
1da177e4 LT	104	ACPI_BUS_TYPE_POWER_BUTTON,
	105	ACPI_BUS_TYPE_SLEEP_BUTTON,
	106	ACPI_BUS_DEVICE_TYPE_COUNT
	107	};
	108
	109	struct acpi_driver;
	110	struct acpi_device;
	111
1da177e4 LT	112	/*
	113	* ACPI Driver
	114	* -----------
	115	*/
	116
4be44fcd LB	117	typedef int (acpi_op_add) (struct acpi_device device);
4be44fcd LB	118	typedef int (acpi_op_remove) (struct acpi_device device, int type);
4be44fcd	119	typedef int (acpi_op_start) (struct acpi_device device);
fd350943 LB	120	typedef int (acpi_op_suspend) (struct acpi_device device,
fd350943 LB	121	pm_message_t state);
5d9464a4	122	typedef int (acpi_op_resume) (struct acpi_device device);
4be44fcd LB	123	typedef int (acpi_op_bind) (struct acpi_device device);
4be44fcd LB	124	typedef int (acpi_op_unbind) (struct acpi_device device);
46ec8598	125	typedef void (acpi_op_notify) (struct acpi_device device, u32 event);
1da177e4	126
3fb02738	127	struct acpi_bus_ops {
4be44fcd	128	u32 acpi_op_add:1;
4be44fcd	129	u32 acpi_op_start:1;
3fb02738 RS	130	};
3fb02738 RS	131
1da177e4	132	struct acpi_device_ops {
4be44fcd LB	133	acpi_op_add add;
4be44fcd LB	134	acpi_op_remove remove;
4be44fcd	135	acpi_op_start start;
4be44fcd LB	136	acpi_op_suspend suspend;
4be44fcd LB	137	acpi_op_resume resume;
4be44fcd LB	138	acpi_op_bind bind;
4be44fcd LB	139	acpi_op_unbind unbind;
46ec8598	140	acpi_op_notify notify;
1da177e4 LT	141	};
1da177e4 LT	142
6d278131 BH	143	#define ACPI_DRIVER_ALL_NOTIFY_EVENTS 0x1 /* system AND device events */
6d278131 BH	144
1da177e4	145	struct acpi_driver {
4be44fcd LB	146	char name[80];
4be44fcd LB	147	char class[80];
8c8eb78f	148	const struct acpi_device_id ids; / Supported Hardware IDs */
6d278131	149	unsigned int flags;
4be44fcd	150	struct acpi_device_ops ops;
d43ec68e	151	struct device_driver drv;
1890a97a	152	struct module *owner;
1da177e4 LT	153	};
	154
	155	/*
	156	* ACPI Device
	157	* -----------
	158	*/
	159
	160	/* Status (_STA) */
	161
	162	struct acpi_device_status {
4be44fcd LB	163	u32 present:1;
	164	u32 enabled:1;
	165	u32 show_in_ui:1;
	166	u32 functional:1;
	167	u32 battery_present:1;
	168	u32 reserved:27;
1da177e4 LT	169	};
1da177e4 LT	170
1da177e4 LT	171	/* Flags */
	172
	173	struct acpi_device_flags {
4be44fcd	174	u32 dynamic_status:1;
4be44fcd	175	u32 bus_address:1;
4be44fcd LB	176	u32 removable:1;
	177	u32 ejectable:1;
	178	u32 lockable:1;
	179	u32 suprise_removal_ok:1;
	180	u32 power_manageable:1;
	181	u32 performance_manageable:1;
d57d09a4	182	u32 reserved:24;
1da177e4 LT	183	};
1da177e4 LT	184
1da177e4 LT	185	/* File System */
	186
	187	struct acpi_device_dir {
4be44fcd	188	struct proc_dir_entry *entry;
1da177e4 LT	189	};
	190
	191	#define acpi_device_dir(d) ((d)->dir.entry)
	192
1da177e4 LT	193	/* Plug and Play */
1da177e4 LT	194
24c5c4c2	195	typedef char acpi_bus_id[8];
4be44fcd	196	typedef unsigned long acpi_bus_address;
4be44fcd LB	197	typedef char acpi_device_name[40];
4be44fcd LB	198	typedef char acpi_device_class[20];
1da177e4	199
7f47fa6c BH	200	struct acpi_hardware_id {
	201	struct list_head list;
	202	char *id;
	203	};
	204
1da177e4	205	struct acpi_device_pnp {
4be44fcd LB	206	acpi_bus_id bus_id; /* Object name */
4be44fcd LB	207	acpi_bus_address bus_address; /* _ADR */
15b8dd53	208	char unique_id; / _UID */
7f47fa6c	209	struct list_head ids; /* _HID and _CIDs */
4be44fcd LB	210	acpi_device_name device_name; /* Driver-determined */
4be44fcd LB	211	acpi_device_class device_class; /* " */
1da177e4 LT	212	};
	213
	214	#define acpi_device_bid(d) ((d)->pnp.bus_id)
	215	#define acpi_device_adr(d) ((d)->pnp.bus_address)
620e112c	216	const char acpi_device_hid(struct acpi_device device);
1da177e4 LT	217	#define acpi_device_name(d) ((d)->pnp.device_name)
	218	#define acpi_device_class(d) ((d)->pnp.device_class)
	219
1da177e4 LT	220	/* Power Management */
	221
	222	struct acpi_device_power_flags {
4be44fcd LB	223	u32 explicit_get:1; /* _PSC present? */
	224	u32 power_resources:1; /* Power resources */
	225	u32 inrush_current:1; /* Serialize Dx->D0 */
	226	u32 power_removed:1; /* Optimize Dx->D0 */
	227	u32 reserved:28;
1da177e4 LT	228	};
	229
	230	struct acpi_device_power_state {
	231	struct {
4be44fcd LB	232	u8 valid:1;
	233	u8 explicit_set:1; /* _PSx present? */
	234	u8 reserved:6;
	235	} flags;
	236	int power; /* % Power (compared to D0) */
	237	int latency; /* Dx->D0 time (microseconds) */
	238	struct acpi_handle_list resources; /* Power resources referenced */
1da177e4 LT	239	};
	240
	241	struct acpi_device_power {
4be44fcd	242	int state; /* Current state */
1da177e4	243	struct acpi_device_power_flags flags;
b4a03b9a	244	struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */
1da177e4 LT	245	};
1da177e4 LT	246
1da177e4 LT	247	/* Performance Management */
	248
	249	struct acpi_device_perf_flags {
4be44fcd	250	u8 reserved:8;
1da177e4 LT	251	};
	252
	253	struct acpi_device_perf_state {
	254	struct {
4be44fcd LB	255	u8 valid:1;
	256	u8 reserved:7;
	257	} flags;
	258	u8 power; /* % Power (compared to P0) */
	259	u8 performance; /* % Performance ( " ) */
	260	int latency; /* Px->P0 time (microseconds) */
1da177e4 LT	261	};
	262
	263	struct acpi_device_perf {
4be44fcd	264	int state;
1da177e4	265	struct acpi_device_perf_flags flags;
4be44fcd	266	int state_count;
1da177e4 LT	267	struct acpi_device_perf_state *states;
	268	};
	269
	270	/* Wakeup Management */
	271	struct acpi_device_wakeup_flags {
4be44fcd LB	272	u8 valid:1; /* Can successfully enable wakeup? */
4be44fcd LB	273	u8 run_wake:1; /* Run-Wake GPE devices */
b67ea761	274	u8 notifier_present:1; /* Wake-up notify handler has been installed */
1da177e4 LT	275	};
1da177e4 LT	276
1da177e4	277	struct acpi_device_wakeup {
4be44fcd	278	acpi_handle gpe_device;
439913ff LM	279	u64 gpe_number;
439913ff LM	280	u64 sleep_state;
4be44fcd	281	struct acpi_handle_list resources;
4be44fcd	282	struct acpi_device_wakeup_flags flags;
9b83ccd2	283	int prepare_count;
1da177e4 LT	284	};
	285
	286	/* Device */
	287
	288	struct acpi_device {
caaa6efb BH	289	int device_type;
caaa6efb BH	290	acpi_handle handle; /* no handle for fixed hardware */
4be44fcd LB	291	struct acpi_device *parent;
	292	struct list_head children;
	293	struct list_head node;
	294	struct list_head wakeup_list;
1da177e4 LT	295	struct acpi_device_status status;
1da177e4 LT	296	struct acpi_device_flags flags;
4be44fcd	297	struct acpi_device_pnp pnp;
1da177e4 LT	298	struct acpi_device_power power;
1da177e4 LT	299	struct acpi_device_wakeup wakeup;
4be44fcd LB	300	struct acpi_device_perf performance;
	301	struct acpi_device_dir dir;
	302	struct acpi_device_ops ops;
	303	struct acpi_driver *driver;
	304	void *driver_data;
5b327265	305	struct device dev;
c4168bff	306	struct acpi_bus_ops bus_ops; /* workaround for different code path for hotplug */
fd350943	307	enum acpi_bus_removal_type removal_type; /* indicate for different removal type */
1da177e4 LT	308	};
1da177e4 LT	309
db89b4f0 PM	310	static inline void acpi_driver_data(struct acpi_device d)
	311	{
	312	return d->driver_data;
	313	}
	314
d43ec68e PM	315	#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
d43ec68e PM	316	#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
1da177e4	317
55955aad DB	318	/* acpi_device.dev.bus == &acpi_bus_type */
	319	extern struct bus_type acpi_bus_type;
	320
1da177e4 LT	321	/*
	322	* Events
	323	* ------
	324	*/
	325
	326	struct acpi_bus_event {
4be44fcd LB	327	struct list_head node;
	328	acpi_device_class device_class;
	329	acpi_bus_id bus_id;
	330	u32 type;
	331	u32 data;
1da177e4 LT	332	};
1da177e4 LT	333
99e0d2fc	334	extern struct kobject *acpi_kobj;
962ce8ca	335	extern int acpi_bus_generate_netlink_event(const char, const char, u8, int);
8e4319c4	336	void acpi_bus_private_data_handler(acpi_handle, void *);
20733939	337	int acpi_bus_get_private_data(acpi_handle, void **);
9ee85241 ZR	338	extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32);
	339	extern int register_acpi_notifier(struct notifier_block *);
	340	extern int unregister_acpi_notifier(struct notifier_block *);
6bd00a61 SL	341
	342	extern int register_acpi_bus_notifier(struct notifier_block *nb);
	343	extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
1da177e4 LT	344	/*
	345	* External Functions
	346	*/
	347
	348	int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
8e4319c4	349	void acpi_bus_data_handler(acpi_handle handle, void *context);
402ac536 BH	350	acpi_status acpi_bus_get_status_handle(acpi_handle handle,
402ac536 BH	351	unsigned long long *sta);
4be44fcd	352	int acpi_bus_get_status(struct acpi_device *device);
4be44fcd	353	int acpi_bus_set_power(acpi_handle handle, int state);
25eed407	354	int acpi_bus_update_power(acpi_handle handle, int *state_p);
3737b2b1	355	bool acpi_bus_power_manageable(acpi_handle handle);
eb9d0fe4	356	bool acpi_bus_can_wakeup(acpi_handle handle);
0090def6 LM	357	int acpi_power_resource_register_device(struct device *dev, acpi_handle handle);
0090def6 LM	358	void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handle);
14e04fb3 LB	359	#ifdef CONFIG_ACPI_PROC_EVENT
14e04fb3 LB	360	int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data);
8db85d4c	361	int acpi_bus_generate_proc_event4(const char class, const char bid, u8 type, int data);
4be44fcd	362	int acpi_bus_receive_event(struct acpi_bus_event *event);
14e04fb3 LB	363	#else
	364	static inline int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
	365	{ return 0; }
	366	#endif
4be44fcd	367	int acpi_bus_register_driver(struct acpi_driver *driver);
06ea8e08	368	void acpi_bus_unregister_driver(struct acpi_driver *driver);
4be44fcd LB	369	int acpi_bus_add(struct acpi_device *child, struct acpi_device parent,
4be44fcd LB	370	acpi_handle handle, int type);
ceaba663	371	int acpi_bus_trim(struct acpi_device *start, int rmdevice);
4be44fcd	372	int acpi_bus_start(struct acpi_device *device);
fd350943	373	acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
8c8eb78f TR	374	int acpi_match_device_ids(struct acpi_device *device,
8c8eb78f TR	375	const struct acpi_device_id *ids);
1da177e4 LT	376	int acpi_create_dir(struct acpi_device *);
	377	void acpi_remove_dir(struct acpi_device *);
	378
4e10d12a DSL	379	/*
	380	* Bind physical devices with ACPI devices
	381	*/
4e10d12a	382	struct acpi_bus_type {
4be44fcd LB	383	struct list_head list;
	384	struct bus_type *bus;
	385	/* For general devices under the bus */
	386	int (find_device) (struct device , acpi_handle *);
4e10d12a	387	/* For bridges, such as PCI root bridge, IDE controller */
4be44fcd	388	int (find_bridge) (struct device , acpi_handle *);
4e10d12a DSL	389	};
	390	int register_acpi_bus_type(struct acpi_bus_type *);
	391	int unregister_acpi_bus_type(struct acpi_bus_type *);
	392	struct device *acpi_get_physical_device(acpi_handle);
22c13f9d	393
76d56de5 AC	394	struct acpi_pci_root {
	395	struct list_head node;
	396	struct acpi_device * device;
	397	struct acpi_pci_id id;
	398	struct pci_bus *bus;
	399	u16 segment;
6ad95513	400	struct resource secondary; /* downstream bus range */
76d56de5 AC	401
	402	u32 osc_support_set; /* _OSC state of support bits */
	403	u32 osc_control_set; /* _OSC state of control bits */
76d56de5 AC	404	};
76d56de5 AC	405
4e10d12a	406	/* helper */
439913ff	407	acpi_handle acpi_get_child(acpi_handle, u64);
27558203	408	int acpi_is_root_bridge(acpi_handle);
4e10d12a	409	acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
76d56de5	410	struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
465ae641	411	#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
4e10d12a	412
b67ea761 RW	413	int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
	414	int acpi_disable_wakeup_device_power(struct acpi_device *dev);
	415
aa338601	416	#ifdef CONFIG_PM
06166780	417	int acpi_pm_device_sleep_state(struct device , int );
761afb86	418	#else
06166780	419	static inline int acpi_pm_device_sleep_state(struct device d, int p)
296699de RW	420	{
	421	if (p)
	422	*p = ACPI_STATE_D0;
	423	return ACPI_STATE_D3;
	424	}
761afb86 RW	425	#endif
	426
	427	#ifdef CONFIG_PM_SLEEP
b24e5098	428	int acpi_pm_device_run_wake(struct device *, bool);
761afb86 RW	429	int acpi_pm_device_sleep_wake(struct device *, bool);
761afb86 RW	430	#else
b24e5098 LM	431	static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
	432	{
	433	return -ENODEV;
	434	}
f7a1b860 DH	435	static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
	436	{
	437	return -ENODEV;
	438	}
761afb86	439	#endif
fd4aff1a	440
66886d6f MG	441	#else /* CONFIG_ACPI */
66886d6f MG	442
7ae30986 LB	443	static inline int register_acpi_bus_type(void *bus) { return 0; }
7ae30986 LB	444	static inline int unregister_acpi_bus_type(void *bus) { return 0; }
66886d6f	445
fd350943	446	#endif /* CONFIG_ACPI */
1da177e4 LT	447
1da177e4 LT	448	#endif /__ACPI_BUS_H__/