link_loss.h File Reference

Link Loss Service declarations.

Copyright (c) 2017-2018 Microchip Technology Inc. and its subsidiaries.

#include "at_ble_api.h"
#include "ble_utils.h"
#include "ble_manager.h"

Data Structures
struct	gatt_lls_char_handler
struct	gatt_lls_char_handler

Macros
#define	INVALID_LLS_PARAM   (0xff)
#define	LLS_ALERT_LEVEL   LLS_HIGH_ALERT
#define	LLS_CHARACTERISTIC_COUNT   (1)
	count of characteristics in linkloss service More...
#define	LLS_CLIENT   0
#define	LLS_INCLUDED_SERVICE_COUNT   (0)
	count of included service in Linkloss service More...
#define	LLS_INVALID_CHAR_HANDLE   (0)
#define	LLS_LEVEL   (2)
#define	LLS_NO_SIGNED_WRITE   (false)
#define	LLS_READ_LENGTH   (1)
#define	LLS_READ_OFFSET   (0)
#define	LLS_READ_RESP_INVALID   (-1)
#define	LLS_SERVER   0
#define	LLS_WRITE_LENGTH   (1)
#define	LLS_WRITE_OFFSET   (0)
#define	LLS_WRITE_WITH_RESPONSE   (true)
#define	MAX_LLS_CHAR_SIZE   (1)

Typedefs
typedef struct gatt_lls_char_handler	gatt_lls_char_handler_t
typedef enum linkloss_alert_level	linkloss_alert_level_t

Enumerations
enum	link_loss_alert_level_t {   LLS_NO_ALERT,   LLS_MILD_ALERT,   LLS_HIGH_ALERT }
enum	linkloss_alert_level {   LLS_NO_ALERT,   LLS_MILD_ALERT,   LLS_HIGH_ALERT }

Functions
void	init_linkloss_service (gatt_service_handler_t *linkloss_serv)
	Initialize the linkloss service with default values. More...
at_ble_status_t	lls_alert_level_read (at_ble_handle_t conn_handle, at_ble_handle_t char_handle)
	Send the Read request to link loss handler Read value will be reported via AT_BLE_CHARACTERISTIC_READ_RESPONSE event. More...
at_ble_status_t	lls_alert_level_write (at_ble_handle_t conn_handle, at_ble_handle_t char_handle, link_loss_alert_level_t alert_level)
	write a characteristic to Link Loss Characteristics More...
int8_t	lls_alert_read_response (at_ble_characteristic_read_response_t *read_resp, gatt_lls_char_handler_t *lls_handler)
	Read Link Loss Alert Value. More...
at_ble_status_t	lls_primary_service_define (gatt_service_handler_t *lls_service)
	Defining linkloss service to the attribute data base. More...
uint8_t	lls_set_alert_value (at_ble_characteristic_changed_t *change_params, gatt_service_handler_t *lls_handler)
	sets the alert value of the Linkloss service More...

#define INVALID_LLS_PARAM   (0xff)

Referenced by lls_set_alert_value(), and pxp_reporter_char_changed_handler().

#define LLS_ALERT_LEVEL   LLS_HIGH_ALERT

Referenced by pxp_monitor_discovery_complete_handler().

#define LLS_CHARACTERISTIC_COUNT   (1)

count of characteristics in linkloss service

Referenced by lls_primary_service_define().

#define LLS_CLIENT   0

#define LLS_INCLUDED_SERVICE_COUNT   (0)

count of included service in Linkloss service

Referenced by lls_primary_service_define().

#define LLS_INVALID_CHAR_HANDLE   (0)

Referenced by lls_alert_level_read().

#define LLS_LEVEL   (2)

#define LLS_NO_SIGNED_WRITE   (false)

Referenced by lls_alert_level_write().

#define LLS_READ_LENGTH   (1)

Referenced by lls_alert_level_read(), and lls_alert_read_response().

#define LLS_READ_OFFSET   (0)

Referenced by lls_alert_level_read(), and lls_alert_read_response().

#define LLS_READ_RESP_INVALID   (-1)

Referenced by lls_alert_read_response().

#define LLS_SERVER   0

#define LLS_WRITE_LENGTH   (1)

Referenced by lls_alert_level_write().

#define LLS_WRITE_OFFSET   (0)

Referenced by lls_alert_level_write().

#define LLS_WRITE_WITH_RESPONSE   (true)

Referenced by lls_alert_level_write().

#define MAX_LLS_CHAR_SIZE   (1)

typedef struct gatt_lls_char_handler gatt_lls_char_handler_t

typedef enum linkloss_alert_level linkloss_alert_level_t

enum link_loss_alert_level_t

Enumerator
LLS_NO_ALERT
LLS_MILD_ALERT
LLS_HIGH_ALERT

enum linkloss_alert_level

Enumerator
LLS_NO_ALERT
LLS_MILD_ALERT
LLS_HIGH_ALERT

void init_linkloss_service

(

gatt_service_handler_t *

linkloss_serv

)

Initialize the linkloss service with default values.

Parameters

[in]

gatt_service_handler_t

the service info which has handle range,uuid and characteristic array fields

Precondition

Must be called before lls_primary_service_define

Returns

void

Initialize the linkloss service with default values.

References ALERT_LEVEL_CHAR_UUID, AT_BLE_ATTR_NO_PERMISSIONS, AT_BLE_ATTR_READABLE_NO_AUTHN_NO_AUTHR, AT_BLE_ATTR_READABLE_REQ_AUTHN_NO_AUTHR, AT_BLE_ATTR_WRITABLE_NO_AUTHN_NO_AUTHR, AT_BLE_ATTR_WRITABLE_REQ_AUTHN_NO_AUTHR, AT_BLE_CHAR_READ, AT_BLE_CHAR_WRITE, AT_BLE_UUID_16, LINK_LOSS_SERVICE_UUID, linkloss_initial_value, and NULL.

Referenced by pxp_service_init().

at_ble_status_t lls_alert_level_read	(	at_ble_handle_t	conn_handle,
		at_ble_handle_t	char_handle
	)

Send the Read request to link loss handler Read value will be reported via AT_BLE_CHARACTERISTIC_READ_RESPONSE event.

Parameters

[in]	conn_handle	handle of the connection
[in]	char_handle	handle of the characteristic

Returns

AT_BLE_SUCCESS operation completed successfully

AT_BLE_INVALID_PARAM Invalid arguments.

AT_BLE_FAILURE Generic error.

References AT_BLE_ATT_INVALID_HANDLE, at_ble_characteristic_read(), LLS_INVALID_CHAR_HANDLE, LLS_READ_LENGTH, and LLS_READ_OFFSET.

at_ble_status_t lls_alert_level_write	(	at_ble_handle_t	conn_handle,
		at_ble_handle_t	char_handle,
		link_loss_alert_level_t	alert_level
	)

write a characteristic to Link Loss Characteristics

if with_response is True, write completion will be reported via AT_BLE_CHARACTERISTIC_WRITE_RESPONSE event

Parameters

[in]	conn_handle	handle of the connection
[in]	char_handle	handle of the characteristic
[in]	alert	level need to write

Returns

AT_BLE_SUCCESS operation completed successfully

AT_BLE_FAILURE Generic error.

References at_ble_characteristic_write(), LLS_NO_SIGNED_WRITE, LLS_WRITE_LENGTH, LLS_WRITE_OFFSET, and LLS_WRITE_WITH_RESPONSE.

Referenced by pxp_monitor_app_button_event(), and pxp_monitor_discovery_complete_handler().

int8_t lls_alert_read_response	(	at_ble_characteristic_read_response_t *	read_resp,
		gatt_lls_char_handler_t *	lls_handler
	)

Read Link Loss Alert Value.

Parameters

[in]

read_value

read response data available form at_ble_characteristic_read_response_t

Returns

Link Loss Alert level .

LLS_READ_RESP_INVALID if value are other than alert levels

References gatt_lls_char_handler::char_data, gatt_lls_char_handler::char_handle, at_ble_characteristic_read_response_t::char_handle, at_ble_characteristic_read_response_t::char_value, DBG_LOG, DBG_LOG_CONT, LLS_HIGH_ALERT, LLS_MILD_ALERT, LLS_NO_ALERT, LLS_READ_LENGTH, LLS_READ_OFFSET, and LLS_READ_RESP_INVALID.

Referenced by pxp_monitor_characteristic_read_response().

at_ble_status_t lls_primary_service_define

(

gatt_service_handler_t *

lls_service

)

Defining linkloss service to the attribute data base.

Parameters

[in]

gatt_service_handler_t

the service info which has handle range,uuid and characteristic array fields

Precondition

Must be called after init_linkloss_service

Returns

AT_BLE_SUCCESS operation completed successfully

AT_BLE_FAILURE Generic error.

Defining linkloss service to the attribute data base.

References at_ble_primary_service_define(), LLS_CHARACTERISTIC_COUNT, LLS_INCLUDED_SERVICE_COUNT, and NULL.

Referenced by pxp_service_define().

uint8_t lls_set_alert_value	(	at_ble_characteristic_changed_t *	change_params,
		gatt_service_handler_t *	lls_handler
	)

sets the alert value of the Linkloss service

Parameters

[in]	gatt_service_handler_t	the service info which has handle range,uuid and characteristic array fields
[in]	at_ble_characteristic_changed_t	the information of the characteristic changed.

Returns

ias alert value

sets the alert value of the Linkloss service

References at_ble_characteristic_changed_t::char_handle, at_ble_characteristic_changed_t::char_new_value, DBG_LOG, INVALID_LLS_PARAM, lls_gs_str, and LLS_HIGH_ALERT.

Referenced by pxp_reporter_char_changed_handler().