forked from Minki/linux
63ff4d0765
* acpi-hotplug: ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines ACPI / hotplug: Do not execute "insert in progress" _OST ACPI / hotplug: Carry out PCI root eject directly ACPI / hotplug: Merge device hot-removal routines ACPI / hotplug: Make acpi_bus_hot_remove_device() internal ACPI / hotplug: Simplify device ejection routines ACPI / hotplug: Fix handle_root_bridge_removal() ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug ACPI / scan: Start matching drivers after trying scan handlers ACPI: Remove acpi_pci_slot_init() headers from internal.h Conflicts: include/acpi/acpiosxf.h (with the 'acpica' branch)
527 lines
14 KiB
C
527 lines
14 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/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);
|
|
acpi_status
|
|
acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event,
|
|
u32 status_code, struct acpi_buffer *status_buf);
|
|
|
|
acpi_status
|
|
acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
|
|
|
|
bool acpi_has_method(acpi_handle handle, char *name);
|
|
acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
|
|
u64 arg);
|
|
acpi_status acpi_evaluate_ej0(acpi_handle handle);
|
|
acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
|
|
bool acpi_ata_match(acpi_handle handle);
|
|
bool acpi_bay_match(acpi_handle handle);
|
|
bool acpi_dock_match(acpi_handle handle);
|
|
|
|
#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_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 Scan Handler
|
|
* -----------------
|
|
*/
|
|
|
|
enum acpi_hotplug_mode {
|
|
AHM_GENERIC = 0,
|
|
AHM_CONTAINER,
|
|
AHM_COUNT
|
|
};
|
|
|
|
struct acpi_hotplug_profile {
|
|
struct kobject kobj;
|
|
bool enabled:1;
|
|
enum acpi_hotplug_mode mode;
|
|
};
|
|
|
|
static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
|
|
struct kobject *kobj)
|
|
{
|
|
return container_of(kobj, struct acpi_hotplug_profile, kobj);
|
|
}
|
|
|
|
struct acpi_scan_handler {
|
|
const struct acpi_device_id *ids;
|
|
struct list_head list_node;
|
|
int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id);
|
|
void (*detach)(struct acpi_device *dev);
|
|
struct acpi_hotplug_profile hotplug;
|
|
};
|
|
|
|
/*
|
|
* ACPI Driver
|
|
* -----------
|
|
*/
|
|
|
|
typedef int (*acpi_op_add) (struct acpi_device * device);
|
|
typedef int (*acpi_op_remove) (struct acpi_device * device);
|
|
typedef void (*acpi_op_notify) (struct acpi_device * device, u32 event);
|
|
|
|
struct acpi_device_ops {
|
|
acpi_op_add add;
|
|
acpi_op_remove remove;
|
|
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 removable:1;
|
|
u32 ejectable:1;
|
|
u32 power_manageable:1;
|
|
u32 match_driver:1;
|
|
u32 reserved:27;
|
|
};
|
|
|
|
/* 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_pnp_type {
|
|
u32 hardware_id:1;
|
|
u32 bus_address:1;
|
|
u32 reserved:30;
|
|
};
|
|
|
|
struct acpi_device_pnp {
|
|
acpi_bus_id bus_id; /* Object name */
|
|
struct acpi_pnp_type type; /* ID type */
|
|
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; /* " */
|
|
union acpi_object *str_obj; /* unicode string for _STR method */
|
|
unsigned long sun; /* _SUN */
|
|
};
|
|
|
|
#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 ignore_parent:1; /* Power is independent of parent power state */
|
|
u32 reserved:27;
|
|
};
|
|
|
|
struct acpi_device_power_state {
|
|
struct {
|
|
u8 valid:1;
|
|
u8 os_accessible:1;
|
|
u8 explicit_set:1; /* _PSx present? */
|
|
u8 reserved:6;
|
|
} flags;
|
|
int power; /* % Power (compared to D0) */
|
|
int latency; /* Dx->D0 time (microseconds) */
|
|
struct list_head 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 list_head resources;
|
|
struct acpi_device_wakeup_flags flags;
|
|
int prepare_count;
|
|
};
|
|
|
|
struct acpi_device_physical_node {
|
|
unsigned int node_id;
|
|
struct list_head node;
|
|
struct device *dev;
|
|
bool put_online:1;
|
|
};
|
|
|
|
/* 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_scan_handler *handler;
|
|
struct acpi_driver *driver;
|
|
void *driver_data;
|
|
struct device dev;
|
|
unsigned int physical_node_count;
|
|
struct list_head physical_node_list;
|
|
struct mutex physical_node_lock;
|
|
void (*remove)(struct acpi_device *);
|
|
};
|
|
|
|
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 *);
|
|
|
|
/*
|
|
* External Functions
|
|
*/
|
|
|
|
int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device);
|
|
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);
|
|
const char *acpi_power_state_string(int state);
|
|
int acpi_device_get_power(struct acpi_device *device, int *state);
|
|
int acpi_device_set_power(struct acpi_device *device, int state);
|
|
int acpi_bus_init_power(struct acpi_device *device);
|
|
int acpi_device_fix_up_power(struct acpi_device *device);
|
|
int acpi_bus_update_power(acpi_handle handle, int *state_p);
|
|
bool acpi_bus_power_manageable(acpi_handle handle);
|
|
|
|
#ifdef CONFIG_PM
|
|
bool acpi_bus_can_wakeup(acpi_handle handle);
|
|
#else
|
|
static inline bool acpi_bus_can_wakeup(acpi_handle handle) { return false; }
|
|
#endif
|
|
|
|
void acpi_scan_lock_acquire(void);
|
|
void acpi_scan_lock_release(void);
|
|
int acpi_scan_add_handler(struct acpi_scan_handler *handler);
|
|
int acpi_bus_register_driver(struct acpi_driver *driver);
|
|
void acpi_bus_unregister_driver(struct acpi_driver *driver);
|
|
int acpi_bus_scan(acpi_handle handle);
|
|
void acpi_bus_trim(struct acpi_device *start);
|
|
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 *);
|
|
|
|
typedef void (*acpi_hp_callback)(void *data, u32 src);
|
|
|
|
acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src);
|
|
|
|
/**
|
|
* module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
|
|
* @__acpi_driver: acpi_driver struct
|
|
*
|
|
* Helper macro for ACPI drivers which do not do anything special in module
|
|
* init/exit. This eliminates a lot of boilerplate. Each module may only
|
|
* use this macro once, and calling it replaces module_init() and module_exit()
|
|
*/
|
|
#define module_acpi_driver(__acpi_driver) \
|
|
module_driver(__acpi_driver, acpi_bus_register_driver, \
|
|
acpi_bus_unregister_driver)
|
|
|
|
/*
|
|
* Bind physical devices with ACPI devices
|
|
*/
|
|
struct acpi_bus_type {
|
|
struct list_head list;
|
|
const char *name;
|
|
bool (*match)(struct device *dev);
|
|
int (*find_device) (struct device *, acpi_handle *);
|
|
void (*setup)(struct device *);
|
|
void (*cleanup)(struct device *);
|
|
};
|
|
int register_acpi_bus_type(struct acpi_bus_type *);
|
|
int unregister_acpi_bus_type(struct acpi_bus_type *);
|
|
|
|
struct acpi_pci_root {
|
|
struct acpi_device * device;
|
|
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 */
|
|
phys_addr_t mcfg_addr;
|
|
};
|
|
|
|
/* helper */
|
|
acpi_handle acpi_find_child(acpi_handle, u64, bool);
|
|
static inline acpi_handle acpi_get_child(acpi_handle handle, u64 addr)
|
|
{
|
|
return acpi_find_child(handle, addr, false);
|
|
}
|
|
int acpi_is_root_bridge(acpi_handle);
|
|
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
|
|
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)ACPI_HANDLE(dev))
|
|
|
|
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
|
|
acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
|
|
acpi_notify_handler handler, void *context);
|
|
acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
|
|
acpi_notify_handler handler);
|
|
int acpi_pm_device_sleep_state(struct device *, int *, int);
|
|
#else
|
|
static inline acpi_status acpi_add_pm_notifier(struct acpi_device *adev,
|
|
acpi_notify_handler handler,
|
|
void *context)
|
|
{
|
|
return AE_SUPPORT;
|
|
}
|
|
static inline acpi_status acpi_remove_pm_notifier(struct acpi_device *adev,
|
|
acpi_notify_handler handler)
|
|
{
|
|
return AE_SUPPORT;
|
|
}
|
|
static inline int acpi_pm_device_sleep_state(struct device *d, int *p, int m)
|
|
{
|
|
if (p)
|
|
*p = ACPI_STATE_D0;
|
|
|
|
return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
|
|
m : ACPI_STATE_D0;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_PM_RUNTIME
|
|
int __acpi_device_run_wake(struct acpi_device *, bool);
|
|
int acpi_pm_device_run_wake(struct device *, bool);
|
|
#else
|
|
static inline int __acpi_device_run_wake(struct acpi_device *adev, bool en)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline int acpi_pm_device_run_wake(struct device *dev, bool enable)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
int __acpi_device_sleep_wake(struct acpi_device *, u32, bool);
|
|
int acpi_pm_device_sleep_wake(struct device *, bool);
|
|
#else
|
|
static inline int __acpi_device_sleep_wake(struct acpi_device *adev,
|
|
u32 target_state, bool enable)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_ACPI_SLEEP
|
|
u32 acpi_target_system_state(void);
|
|
#else
|
|
static inline u32 acpi_target_system_state(void) { return ACPI_STATE_S0; }
|
|
#endif
|
|
|
|
static inline bool acpi_device_power_manageable(struct acpi_device *adev)
|
|
{
|
|
return adev->flags.power_manageable;
|
|
}
|
|
|
|
static inline bool acpi_device_can_wakeup(struct acpi_device *adev)
|
|
{
|
|
return adev->wakeup.flags.valid;
|
|
}
|
|
|
|
static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
|
|
{
|
|
return adev->power.states[ACPI_STATE_D3_COLD].flags.os_accessible;
|
|
}
|
|
|
|
#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__*/
|