| /* |
| * 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); |
| |
| #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) |
| 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 */ |
| }; |
| |
| 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; |
| }; |
| |
| /* 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; |
| u8 bus_nr; |
| |
| u32 osc_support_set; /* _OSC state of support bits */ |
| u32 osc_control_set; /* _OSC state of control bits */ |
| u32 osc_control_qry; /* the latest _OSC query result */ |
| |
| u32 osc_queried:1; /* has _OSC control been queried? */ |
| }; |
| |
| /* 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)) |
| |
| #ifdef CONFIG_PM_SLEEP |
| int acpi_pm_device_sleep_state(struct device *, int *); |
| int acpi_pm_device_sleep_wake(struct device *, bool); |
| #else /* !CONFIG_PM_SLEEP */ |
| static inline int acpi_pm_device_sleep_state(struct device *d, int *p) |
| { |
| if (p) |
| *p = ACPI_STATE_D0; |
| return ACPI_STATE_D3; |
| } |
| static inline int acpi_pm_device_sleep_wake(struct device *dev, bool enable) |
| { |
| return -ENODEV; |
| } |
| #endif /* !CONFIG_PM_SLEEP */ |
| |
| #endif /* CONFIG_ACPI */ |
| |
| #endif /*__ACPI_BUS_H__*/ |