diff options
Diffstat (limited to 'include/acpi/acpi_bus.h')
| -rw-r--r-- | include/acpi/acpi_bus.h | 339 |
1 files changed, 261 insertions, 78 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 359ef11725a..b5714580801 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -28,8 +28,6 @@ #include <linux/device.h> -#include <acpi/acpi.h> - /* TBD: Make dynamic */ #define ACPI_MAX_HANDLES 10 struct acpi_handle_list { @@ -50,6 +48,47 @@ acpi_evaluate_reference(acpi_handle handle, acpi_string pathname, struct acpi_object_list *arguments, struct acpi_handle_list *list); +acpi_status +acpi_evaluate_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); + +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); +union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, + int rev, int func, union acpi_object *argv4); + +static inline union acpi_object * +acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, + union acpi_object *argv4, acpi_object_type type) +{ + union acpi_object *obj; + + obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); + if (obj && obj->type != type) { + ACPI_FREE(obj); + obj = NULL; + } + + return obj; +} + +#define ACPI_INIT_DSM_ARGV4(cnt, eles) \ + { \ + .package.type = ACPI_TYPE_PACKAGE, \ + .package.count = (cnt), \ + .package.elements = (eles) \ + } #ifdef CONFIG_ACPI @@ -58,13 +97,6 @@ acpi_evaluate_reference(acpi_handle handle, #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, @@ -79,33 +111,58 @@ struct acpi_driver; struct acpi_device; /* + * ACPI Scan Handler + * ----------------- + */ + +struct acpi_hotplug_profile { + struct kobject kobj; + int (*scan_dependent)(struct acpi_device *adev); + bool enabled:1; + bool demand_offline:1; +}; + +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; + bool (*match)(char *idstr, const struct acpi_device_id **matchid); + int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); + void (*detach)(struct acpi_device *dev); + void (*bind)(struct device *phys_dev); + void (*unbind)(struct device *phys_dev); + struct acpi_hotplug_profile hotplug; +}; + +/* + * ACPI Hotplug Context + * -------------------- + */ + +struct acpi_hotplug_context { + struct acpi_device *self; + int (*notify)(struct acpi_device *, u32); + void (*uevent)(struct acpi_device *, u32); + void (*fixup)(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 int (*acpi_op_remove) (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; }; @@ -141,15 +198,15 @@ struct acpi_device_status { 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 match_driver:1; + u32 initialized:1; + u32 visited:1; + u32 no_hotplug:1; + u32 hotplug_notify:1; + u32 is_dock_station:1; u32 reserved:22; }; @@ -173,13 +230,23 @@ struct acpi_hardware_id { char *id; }; +struct acpi_pnp_type { + u32 hardware_id:1; + u32 bus_address:1; + u32 platform_id:1; + u32 reserved:29; +}; + struct acpi_device_pnp { - acpi_bus_id bus_id; /* Object name */ + acpi_bus_id bus_id; /* Object name */ + struct acpi_pnp_type type; /* ID type */ acpi_bus_address bus_address; /* _ADR */ - char *unique_id; /* _UID */ + 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) @@ -195,24 +262,27 @@ struct acpi_device_power_flags { u32 power_resources:1; /* Power resources */ u32 inrush_current:1; /* Serialize Dx->D0 */ u32 power_removed:1; /* Optimize Dx->D0 */ - u32 reserved:28; + u32 ignore_parent:1; /* Power is independent of parent power state */ + u32 dsw_present:1; /* _DSW present? */ + u32 reserved:26; }; 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 acpi_handle_list resources; /* Power resources referenced */ + 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[4]; /* Power states (D0-D3) */ + struct acpi_device_power_state states[ACPI_D_STATE_COUNT]; /* Power states (D0-D3Cold) */ }; /* Performance Management */ @@ -242,27 +312,26 @@ struct acpi_device_perf { struct acpi_device_wakeup_flags { u8 valid:1; /* Can successfully enable wakeup? */ u8 run_wake:1; /* Run-Wake GPE devices */ - u8 always_enabled:1; /* Run-wake devices that are always enabled */ u8 notifier_present:1; /* Wake-up notify handler has been installed */ }; -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 list_head resources; struct acpi_device_wakeup_flags flags; int prepare_count; - int run_wake_count; }; -/* Device */ +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 */ @@ -270,6 +339,7 @@ struct acpi_device { struct list_head children; struct list_head node; struct list_head wakeup_list; + struct list_head del_list; struct acpi_device_status status; struct acpi_device_flags flags; struct acpi_device_pnp pnp; @@ -277,12 +347,15 @@ struct acpi_device { struct acpi_device_wakeup wakeup; struct acpi_device_perf performance; struct acpi_device_dir dir; - struct acpi_device_ops ops; + struct acpi_scan_handler *handler; + struct acpi_hotplug_context *hp; 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 */ + 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) @@ -293,6 +366,29 @@ static inline void *acpi_driver_data(struct acpi_device *d) #define to_acpi_device(d) container_of(d, struct acpi_device, dev) #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) +static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) +{ + *((u32 *)&adev->status) = sta; +} + +static inline void acpi_set_hp_context(struct acpi_device *adev, + struct acpi_hotplug_context *hp, + int (*notify)(struct acpi_device *, u32), + void (*uevent)(struct acpi_device *, u32), + void (*fixup)(struct acpi_device *)) +{ + hp->self = adev; + hp->notify = notify; + hp->uevent = uevent; + hp->fixup = fixup; + adev->hp = hp; +} + +void acpi_initialize_hp_context(struct acpi_device *adev, + struct acpi_hotplug_context *hp, + int (*notify)(struct acpi_device *, u32), + void (*uevent)(struct acpi_device *, u32)); + /* acpi_device.dev.bus == &acpi_bus_type */ extern struct bus_type acpi_bus_type; @@ -313,102 +409,189 @@ 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 **); +int acpi_bus_attach_private_data(acpi_handle, void *); +void acpi_bus_detach_private_data(acpi_handle); +void acpi_bus_no_hotplug(acpi_handle handle); 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); +struct acpi_device *acpi_bus_get_acpi_device(acpi_handle handle); +void acpi_bus_put_acpi_device(struct acpi_device *adev); 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); +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); -#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; } +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); +void acpi_lock_hp_context(void); +void acpi_unlock_hp_context(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_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); +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 *); +static inline bool acpi_device_enumerated(struct acpi_device *adev) +{ + return adev && adev->flags.initialized && adev->flags.visited; +} + +/** + * 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; - 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 *); + const char *name; + bool (*match)(struct device *dev); + struct acpi_device * (*find_companion)(struct device *); + 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 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 */ + phys_addr_t mcfg_addr; }; /* helper */ -acpi_handle acpi_get_child(acpi_handle, u64); + +struct acpi_device *acpi_find_child_device(struct acpi_device *parent, + u64 address, bool check_children); 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_OPS -int acpi_pm_device_sleep_state(struct device *, int *); +#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 int acpi_pm_device_sleep_state(struct device *d, int *p) +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 ACPI_STATE_D3; + + 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__*/ |