Link Loss Service

Link Loss Service module. More...

Typedefs
typedef struct ble_lls_s	ble_lls_t
	Link Loss Service structure. This contains various status information for the service.
typedef void(*	ble_lls_evt_handler_t )(ble_lls_t *p_lls, ble_lls_evt_t *p_evt)
	Link Loss Service event handler type.

Enumerations
enum	ble_lls_evt_type_t { BLE_LLS_EVT_LINK_LOSS_ALERT }
	Link Loss Service event type. More...

Functions
uint32_t	ble_lls_init (ble_lls_t *p_lls, const ble_lls_init_t *p_lls_init)
	Function for initializing the Link Loss Service. More...
void	ble_lls_on_ble_evt (ble_lls_t *p_lls, ble_evt_t *p_ble_evt)
	Function for handling the Application's BLE Stack events. More...
uint32_t	ble_lls_alert_level_get (ble_lls_t *p_lls, uint8_t *p_alert_level)
	Function for getting current value of the Alert Level characteristic. More...

Data Structures
struct	ble_lls_evt_t
	Link Loss Service event. More...
struct	ble_lls_init_t
	Link Loss Service init structure. This contains all options and data needed for initialization of the service. More...
struct	ble_lls_s
	Link Loss Service structure. This contains various status information for the service. More...

Detailed Description

This module implements the Link Loss Service with the Alert Level characteristic. During initialization it adds the Link Loss Service and Alert Level characteristic to the BLE stack database.

The application must supply an event handler for receiving Link Loss Service events. Using this handler, the service will notify the application when the link has been lost, and which Alert Level has been set.

The service also provides a function for letting the application poll the current value of the Alert Level characteristic.

Note

The application must propagate BLE stack events to the Link Loss Service module by calling ble_lls_on_ble_evt() from the BLE Stack Event Handler callback.

Enumeration Type Documentation

enum ble_lls_evt_type_t

Enumerator
BLE_LLS_EVT_LINK_LOSS_ALERT	Alert Level Updated event.

Function Documentation

uint32_t ble_lls_init	(	ble_lls_t *	p_lls,
		const ble_lls_init_t *	p_lls_init
	)

Parameters

[out]	p_lls	Link Loss Service structure. This structure will have to be supplied by the application. It will be initialized by this function, and will later be used to identify this particular service instance.
[in]	p_lls_init	Information needed to initialize the service.

Returns

NRF_SUCCESS on successful initialization of service, otherwise an error code.

void ble_lls_on_ble_evt	(	ble_lls_t *	p_lls,
		ble_evt_t *	p_ble_evt
	)

Handles all events from the BLE stack of interest to the Link Loss Service.

Parameters

[in]	p_lls	Link Loss Service structure.
[in]	p_ble_evt	Event received from the BLE stack.

uint32_t ble_lls_alert_level_get	(	ble_lls_t *	p_lls,
		uint8_t *	p_alert_level
	)

Parameters

[in]	p_lls	Link Loss Service structure.
[out]	p_alert_level	Current Alert Level value.