mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
93ad7c07ad
force_power_state was used as a workaround for invalid cached power state of the device. We do not cache power state, so no need for workaround. Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
386 lines
10 KiB
C
386 lines
10 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>
|
|
|
|
#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
|
|
|
|
#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_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,
|
|
pm_message_t state);
|
|
typedef int (*acpi_op_resume) (struct acpi_device * device);
|
|
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_shutdown) (struct acpi_device * device);
|
|
|
|
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_shutdown: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_shutdown shutdown;
|
|
};
|
|
|
|
struct acpi_driver {
|
|
char name[80];
|
|
char class[80];
|
|
const struct acpi_device_id *ids; /* Supported Hardware IDs */
|
|
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 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[15];
|
|
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;
|
|
};
|
|
|
|
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 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 */
|
|
};
|
|
|
|
#define acpi_driver_data(d) ((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 kset acpi_subsys;
|
|
extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
|
|
/*
|
|
* 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);
|
|
#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
|
|
*/
|
|
#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)->archdata.acpi_handle))
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
int acpi_pm_device_sleep_state(struct device *, int, int *);
|
|
#else /* !CONFIG_PM_SLEEP */
|
|
static inline int acpi_pm_device_sleep_state(struct device *d, int w, int *p)
|
|
{
|
|
if (p)
|
|
*p = ACPI_STATE_D0;
|
|
return ACPI_STATE_D3;
|
|
}
|
|
#endif /* !CONFIG_PM_SLEEP */
|
|
|
|
#endif /* CONFIG_ACPI */
|
|
|
|
#endif /*__ACPI_BUS_H__*/
|