notifier.h File Reference

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Data Structures
struct	notify
struct	notify_data

Macros
#define	NOTIFIER_TARGET_CORE_MASK(x)
#define	NOTIFIER_TARGET_CORE_LOCAL   NOTIFIER_TARGET_CORE_MASK(cpu_get_id())
#define	NOTIFIER_TARGET_CORE_ALL_MASK   0xFFFFFFFF
#define	NOTIFIER_FLAG_AGGREGATE   BIT(0)
	Notifier flags.
#define	NOTIFIER_CLK_CHANGE_ID(clk)

Typedefs
typedef void(*	notifier_callback_t) (void *receiver_data, enum notify_id event_type, void *caller_data)

Enumerations
enum	notify_id {   NOTIFIER_ID_CPU_FREQ = 0 , NOTIFIER_ID_SSP_FREQ , NOTIFIER_ID_KPB_CLIENT_EVT , NOTIFIER_ID_DMA_DOMAIN_CHANGE ,   NOTIFIER_ID_DMA_COPY , NOTIFIER_ID_DMA_IRQ , NOTIFIER_ID_DAI_TRIGGER , NOTIFIER_ID_MIC_PRIVACY_STATE_CHANGE ,   NOTIFIER_ID_COUNT }

Functions
struct notify **	arch_notify_get (void)
int	notifier_register (void *receiver_data, void *caller_id_filter, enum notify_id event_type, notifier_callback_t callback, uint32_t flags)
	Register a callback to be run when event 'type' happens.
void	notifier_unregister (void *receiver_data_filter, void *caller_id_filter, enum notify_id type)
	Unregister all callbacks matching that arguments tuple.
void	notifier_unregister_all (void *receiver_data_filter, void *caller_id_filter)
	Unregister callbacks matching the arguments for every notify_id.
void	notifier_notify_remote (void)
void	notifier_event (const void *caller_id, enum notify_id event_type, uint32_t core_mask, void *caller_data, uint32_t data_size)
void	init_system_notify (struct sof *sof)
void	free_system_notify (void)
static struct notify_data *	notify_data_get (void)

Macro Definition Documentation

NOTIFIER_CLK_CHANGE_ID

#define NOTIFIER_CLK_CHANGE_ID

(

clk

)

Value:

NOTIFIER_ID_CPU_FREQ

NOTIFIER_FLAG_AGGREGATE

#define NOTIFIER_FLAG_AGGREGATE   BIT(0)

Notifier flags.

NOTIFIER_TARGET_CORE_ALL_MASK

#define NOTIFIER_TARGET_CORE_ALL_MASK   0xFFFFFFFF

NOTIFIER_TARGET_CORE_LOCAL

#define NOTIFIER_TARGET_CORE_LOCAL   NOTIFIER_TARGET_CORE_MASK(cpu_get_id())

NOTIFIER_TARGET_CORE_MASK

#define NOTIFIER_TARGET_CORE_MASK

(

x

)

Value:

(1 << (x))

Typedef Documentation

notifier_callback_t

typedef void(* notifier_callback_t) (void *receiver_data, enum notify_id event_type, void *caller_data)

Enumeration Type Documentation

notify_id

enum notify_id

Enumerator
NOTIFIER_ID_CPU_FREQ
NOTIFIER_ID_SSP_FREQ
NOTIFIER_ID_KPB_CLIENT_EVT
NOTIFIER_ID_DMA_DOMAIN_CHANGE
NOTIFIER_ID_DMA_COPY
NOTIFIER_ID_DMA_IRQ
NOTIFIER_ID_DAI_TRIGGER
NOTIFIER_ID_MIC_PRIVACY_STATE_CHANGE
NOTIFIER_ID_COUNT

Function Documentation

arch_notify_get()

struct notify ** arch_notify_get

(

void

)

free_system_notify()

void free_system_notify

(

void

)

init_system_notify()

void init_system_notify

(

struct sof *

sof

)

notifier_event()

void notifier_event	(	const void *	caller_id,
		enum notify_id	event_type,
		uint32_t	core_mask,
		void *	caller_data,
		uint32_t	data_size )

notifier_notify_remote()

void notifier_notify_remote

(

void

)

notifier_register()

int notifier_register	(	void *	receiver_data,
		void *	caller_id_filter,
		enum notify_id	event_type,
		notifier_callback_t	callback,
		uint32_t	flags )

Register a callback to be run when event 'type' happens.

The identifier for un-registration is the tuple (receiver_data, caller_id_filter, event_type), the callback argument is not part of it.

caller_data argument from notifier_event()

Parameters

receiver_data	private data passed to the callback.
caller_id_filter	optional, can be used to be notified only by some specific notifier_event() calls when not NULL.
event_type	list of callbacks to be added to
callback	callback function
flags	see NOTIFIER_FLAG_* above

notifier_unregister()

void notifier_unregister	(	void *	receiver_data_filter,
		void *	caller_id_filter,
		enum notify_id	type )

Unregister all callbacks matching that arguments tuple.

NULL acts as a wildcard.

notifier_unregister_all()

void notifier_unregister_all	(	void *	receiver_data_filter,
		void *	caller_id_filter )

Unregister callbacks matching the arguments for every notify_id.

A NULL parameter acts as a wildcard.

notify_data_get()

struct notify_data * notify_data_get ( void )

inlinestatic