377 lines
9.7 KiB
C
377 lines
9.7 KiB
C
/*
|
|
* 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/kobject.h>
|
|
|
|
#include <acpi/acpi.h>
|
|
|
|
#define PREFIX "ACPI: "
|
|
|
|
/* 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 *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_BUS
|
|
|
|
#include <linux/proc_fs.h>
|
|
|
|
#define ACPI_BUS_FILE_ROOT "acpi"
|
|
extern struct proc_dir_entry *acpi_root_dir;
|
|
extern FADT_DESCRIPTOR acpi_fadt;
|
|
|
|
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_SYSTEM,
|
|
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_lock) (struct acpi_device *device, int type);
|
|
typedef int (*acpi_op_start) (struct acpi_device *device);
|
|
typedef int (*acpi_op_stop) (struct acpi_device *device, int type);
|
|
typedef int (*acpi_op_suspend) (struct acpi_device *device, int state);
|
|
typedef int (*acpi_op_resume) (struct acpi_device *device, int state);
|
|
typedef int (*acpi_op_scan) (struct acpi_device *device);
|
|
typedef int (*acpi_op_bind) (struct acpi_device *device);
|
|
typedef int (*acpi_op_unbind) (struct acpi_device *device);
|
|
typedef int (*acpi_op_match) (struct acpi_device *device,
|
|
struct acpi_driver *driver);
|
|
|
|
struct acpi_bus_ops {
|
|
u32 acpi_op_add:1;
|
|
u32 acpi_op_remove:1;
|
|
u32 acpi_op_lock:1;
|
|
u32 acpi_op_start:1;
|
|
u32 acpi_op_stop:1;
|
|
u32 acpi_op_suspend:1;
|
|
u32 acpi_op_resume:1;
|
|
u32 acpi_op_scan:1;
|
|
u32 acpi_op_bind:1;
|
|
u32 acpi_op_unbind:1;
|
|
u32 acpi_op_match:1;
|
|
u32 reserved:21;
|
|
};
|
|
|
|
struct acpi_device_ops {
|
|
acpi_op_add add;
|
|
acpi_op_remove remove;
|
|
acpi_op_lock lock;
|
|
acpi_op_start start;
|
|
acpi_op_stop stop;
|
|
acpi_op_suspend suspend;
|
|
acpi_op_resume resume;
|
|
acpi_op_scan scan;
|
|
acpi_op_bind bind;
|
|
acpi_op_unbind unbind;
|
|
acpi_op_match match;
|
|
};
|
|
|
|
struct acpi_driver {
|
|
struct list_head node;
|
|
char name[80];
|
|
char class[80];
|
|
atomic_t references;
|
|
char *ids; /* Supported Hardware IDs */
|
|
struct acpi_device_ops ops;
|
|
};
|
|
|
|
/*
|
|
* 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 hardware_id:1;
|
|
u32 compatible_ids:1;
|
|
u32 bus_address:1;
|
|
u32 unique_id: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 reserved:20;
|
|
};
|
|
|
|
|
|
/* 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[5];
|
|
typedef unsigned long acpi_bus_address;
|
|
typedef char acpi_hardware_id[9];
|
|
typedef char acpi_unique_id[9];
|
|
typedef char acpi_device_name[40];
|
|
typedef char acpi_device_class[20];
|
|
|
|
struct acpi_device_pnp {
|
|
acpi_bus_id bus_id; /* Object name */
|
|
acpi_bus_address bus_address; /* _ADR */
|
|
acpi_hardware_id hardware_id; /* _HID */
|
|
struct acpi_compatible_id_list *cid_list; /* _CIDs */
|
|
acpi_unique_id unique_id; /* _UID */
|
|
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)
|
|
#define acpi_device_hid(d) ((d)->pnp.hardware_id)
|
|
#define acpi_device_uid(d) ((d)->pnp.unique_id)
|
|
#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 */
|
|
};
|
|
|
|
struct acpi_device_wakeup_state {
|
|
u8 enabled:1;
|
|
u8 active:1;
|
|
};
|
|
|
|
struct acpi_device_wakeup {
|
|
acpi_handle gpe_device;
|
|
acpi_integer gpe_number;;
|
|
acpi_integer sleep_state;
|
|
struct acpi_handle_list resources;
|
|
struct acpi_device_wakeup_state state;
|
|
struct acpi_device_wakeup_flags flags;
|
|
};
|
|
|
|
/* Device */
|
|
|
|
struct acpi_device {
|
|
acpi_handle handle;
|
|
struct acpi_device *parent;
|
|
struct list_head children;
|
|
struct list_head node;
|
|
struct list_head wakeup_list;
|
|
struct list_head g_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 kobject kobj;
|
|
};
|
|
|
|
#define acpi_driver_data(d) ((d)->driver_data)
|
|
|
|
|
|
/*
|
|
* 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 subsystem acpi_subsys;
|
|
|
|
/*
|
|
* External Functions
|
|
*/
|
|
|
|
int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
|
|
void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context);
|
|
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);
|
|
int acpi_bus_generate_event (struct acpi_device *device, u8 type, int data);
|
|
int acpi_bus_receive_event (struct acpi_bus_event *event);
|
|
int acpi_bus_register_driver (struct acpi_driver *driver);
|
|
int 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_start (struct acpi_device *device);
|
|
|
|
|
|
int acpi_match_ids (struct acpi_device *device, char *ids);
|
|
int acpi_create_dir(struct acpi_device *);
|
|
void acpi_remove_dir(struct acpi_device *);
|
|
|
|
|
|
/*
|
|
* Bind physical devices with ACPI devices
|
|
*/
|
|
#include <linux/device.h>
|
|
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);
|
|
/* helper */
|
|
acpi_handle acpi_get_child(acpi_handle, acpi_integer);
|
|
acpi_handle acpi_get_pci_rootbridge_handle(unsigned int, unsigned int);
|
|
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->firmware_data))
|
|
|
|
#endif /*CONFIG_ACPI_BUS*/
|
|
|
|
#endif /*__ACPI_BUS_H__*/
|