Link Loss Service

nRF5 SDK v12.1.0

Link Loss Service module. 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...

Typedefs

typedef struct ble_lls_s ble_lls_t
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...

Detailed Description

Link Loss Service module.

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 SoftDevice Event Handler callback.
Attention! To maintain compliance with Nordic Semiconductor ASA Bluetooth profile qualification listings, this section of source code must not be modified.

Enumeration Type Documentation

Link Loss Service event type.

Enumerator
BLE_LLS_EVT_LINK_LOSS_ALERT

Alert Level Updated event.

Function Documentation

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.

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

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
)

Function for handling the Application's BLE Stack events.

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.