Proximity Monitor Profile.

#include <asf.h>
#include "platform.h"
#include "pxp_monitor.h"
#include "ble_manager.h"
#include "link_loss.h"
#include "tx_power.h"
#include "immediate_alert.h"

Functions
at_ble_status_t	pxp_disconnect_event_handler (void *params)
	peer device connection terminated More...

at_ble_status_t	pxp_monitor_characteristic_found_handler (void *params)
	Handles all Discovered characteristics of a given handler in a connected device. More...

at_ble_status_t	pxp_monitor_characteristic_read_response (void *params)
	Handles the read response from the peer/connected device. More...

at_ble_status_t	pxp_monitor_connect_request (at_ble_scan_info_t *scan_buffer, uint8_t index)
	Connect to a peer device. More...

at_ble_status_t	pxp_monitor_connected_state_handler (void *params)
	Connected event state handle after connection request to peer device. More...

at_ble_status_t	pxp_monitor_discovery_complete_handler (void *params)
	Discover all Characteristics supported for Proximity Service of a connected device and handles discovery complete Search will go from start_handle to end_handle, whenever a characteristic is found After search and discovery completes will initialize the alert level and read the tx power value as defined AT_BLE_CHARACTERISTIC_FOUND event is sent and AT_BLE_DISCOVERY_COMPLETE is sent at end of discover operation. More...

at_ble_status_t	pxp_monitor_encryption_change_handler (void *params)

void	pxp_monitor_init (void *param)

at_ble_status_t	pxp_monitor_pair_done_handler (void *params)

at_ble_status_t	pxp_monitor_scan_data_handler (at_ble_scan_info_t *scan_info, uint8_t scan_count)
	Search for a given AD type in a buffer, received from advertising packets starts search from the buffer, need to provide required search params. More...

at_ble_status_t	pxp_monitor_service_discover (at_ble_handle_t handle)
	Discover all services. More...

at_ble_status_t	pxp_monitor_service_found_handler (void *params)
	Discover the Proximity services. More...

at_ble_status_t	pxp_monitor_start_scan (void)

Variables
volatile ble_device_ll_state_t	ble_device_current_state

uint8_t	ias_char_data [MAX_IAS_CHAR_SIZE]

gatt_ias_char_handler_t	ias_handle

uint8_t	lls_char_data [MAX_LLS_CHAR_SIZE]

gatt_lls_char_handler_t	lls_handle

volatile uint8_t	pxp_connect_request_flag = PXP_DEV_UNCONNECTED

at_ble_addr_t	pxp_reporter_address

uint8_t	pxp_supp_scan_index [MAX_SCAN_DEVICE]

uint8_t	scan_index = 0

at_ble_scan_info_t	scan_info [MAX_SCAN_DEVICE]

volatile uint8_t	scan_response_count

uint8_t	tx_power_char_data [MAX_TX_POWER_CHAR_SIZE]

gatt_txps_char_handler_t	txps_handle

at_ble_status_t pxp_disconnect_event_handler ( void * params )

peer device connection terminated

handler for disconnect notification try to send connect request for previously connect device.

Parameters

[in] available disconnect handler of peer and reason for disconnection

Returns: AT_BLE_SUCCESS Reconnect request sent to previously connected device; AT_BLE_FAILURE Reconnection fails.

References AT_BLE_FAILURE, pxp_connect_request_flag, and PXP_DEV_UNCONNECTED.

at_ble_status_t pxp_monitor_characteristic_found_handler ( void * params )

Handles all Discovered characteristics of a given handler in a connected device.

Compare the characteristics UUID with proximity services whenever a characteristics is found if compare stores the characteristics handler of respective service

Parameters

[in] characteristic_found Discovered characteristics params of a connected device

References ALERT_LEVEL_CHAR_UUID, AT_BLE_SUCCESS, gatt_txps_char_handler::char_handle, gatt_lls_char_handler::char_handle, gatt_ias_char_handler::char_handle, at_ble_characteristic_found_t::char_handle, at_ble_characteristic_found_t::char_uuid, DBG_LOG, gatt_lls_char_handler::end_handle, at_ble_characteristic_found_t::properties, gatt_lls_char_handler::start_handle, TX_POWER_LEVEL_CHAR_UUID, at_ble_uuid_t::uuid, and at_ble_characteristic_found_t::value_handle.

at_ble_status_t pxp_monitor_characteristic_read_response ( void * params )

Handles the read response from the peer/connected device.

if any read request send, response back event is handle. compare the read response characteristics with available service. and data is handle to the respective service.

References AT_BLE_SUCCESS, lls_alert_read_response(), and txps_power_read_response().

at_ble_status_t pxp_monitor_connect_request	(	at_ble_scan_info_t *	scan_buffer,
		uint8_t	index
	)

Connect to a peer device.

Connecting to a peer device, implicitly starting the necessary scan operation then connecting if a device in the peers list is found.

Parameters

[in]	scan_buffer	a list of peers that the device will connect to one of them
[in]	index	index of elements in peers, to initiate the connection

Returns: AT_BLE_SUCCESS operation programmed successfully; AT_BLE_INVALID_PARAM incorrect parameter.; AT_BLE_FAILURE Generic error.

References AT_BLE_FAILURE, AT_BLE_SUCCESS, DBG_LOG, gap_dev_connect(), pxp_connect_request_flag, and PXP_DEV_CONNECTING.

Referenced by pxp_monitor_scan_data_handler().

at_ble_status_t pxp_monitor_connected_state_handler ( void * params )

Connected event state handle after connection request to peer device.

After connecting to the peer device start the GATT primary discovery

Parameters

[in] conn_params parameters of the established connection

Returns: AT_BLE_SUCCESS operation successfully.; AT_BLE_INVALID_PARAM if GATT discovery parameter are incorrect parameter.; AT_BLE_FAILURE Generic error.

References at_ble_connected_t::conn_status, pxp_connect_request_flag, and PXP_DEV_CONNECTED.

at_ble_status_t pxp_monitor_discovery_complete_handler ( void * params )

Discover all Characteristics supported for Proximity Service of a connected device and handles discovery complete Search will go from start_handle to end_handle, whenever a characteristic is found After search and discovery completes will initialize the alert level and read the tx power value as defined AT_BLE_CHARACTERISTIC_FOUND event is sent and AT_BLE_DISCOVERY_COMPLETE is sent at end of discover operation.

Parameters

[in] discover_status discovery status of each handle

References at_ble_characteristic_discover_all(), at_ble_disconnect(), AT_BLE_FAILURE, AT_BLE_INVALID_PARAM, AT_BLE_INVALID_STATE, AT_BLE_SUCCESS, AT_BLE_TERMINATED_BY_USER, gatt_txps_char_handler::char_discovery, gatt_lls_char_handler::char_discovery, gatt_ias_char_handler::char_discovery, gatt_txps_char_handler::char_handle, gatt_lls_char_handler::char_handle, gatt_ias_char_handler::conn_handle, gatt_txps_char_handler::conn_handle, gatt_lls_char_handler::conn_handle, DBG_LOG, DBG_LOG_DEV, DISCOVER_SUCCESS, gatt_txps_char_handler::end_handle, gatt_lls_char_handler::end_handle, gatt_ias_char_handler::end_handle, LLS_ALERT_LEVEL, lls_alert_level_write(), gatt_txps_char_handler::start_handle, gatt_lls_char_handler::start_handle, gatt_ias_char_handler::start_handle, at_ble_discovery_complete_t::status, and txps_power_read().

at_ble_status_t pxp_monitor_encryption_change_handler ( void * params )

References AT_BLE_FAILURE, AT_BLE_SUCCESS, at_ble_encryption_status_changed_t::handle, pxp_connect_request_flag, PXP_DEV_CONNECTED, PXP_DEV_UNCONNECTED, pxp_monitor_service_discover(), status, and at_ble_encryption_status_changed_t::status.

void pxp_monitor_init ( void * param )

References gatt_txps_char_handler::char_data, gatt_lls_char_handler::char_data, gatt_ias_char_handler::char_data, DBG_LOG, ias_char_data, lls_char_data, PXP_HIGH_ALERT_RANGE, PXP_LOW_ALERT_RANGE, tx_power_char_data, and UNUSED.

at_ble_status_t pxp_monitor_pair_done_handler ( void * params )

References AT_BLE_FAILURE, AT_BLE_SUCCESS, DBG_LOG, at_ble_pair_done_t::handle, pxp_monitor_service_discover(), pxp_monitor_start_scan(), status, and at_ble_pair_done_t::status.

at_ble_status_t pxp_monitor_scan_data_handler	(	at_ble_scan_info_t *	scan_info,
		uint8_t	scan_count
	)

Search for a given AD type in a buffer, received from advertising packets starts search from the buffer, need to provide required search params.

Search for a given AD type in a buffer, received from advertising packets.

Parameters

[in]	scan_buffer	where all received advertising packet are stored
[in]	scanned_dev_count	elements in scan_buffer

Returns: AT_BLE_SUCCESS operation programmed successfully; AT_BLE_INVALID_PARAM incorrect parameter.; AT_BLE_FAILURE Generic error.

References AD_TYPE_COMPLETE_LIST_UUID, at_ble_addr_t::addr, AT_BLE_ADV_TYPE_DIRECTED, AT_BLE_ADV_TYPE_UNDIRECTED, AT_BLE_FAILURE, at_ble_scan_stop(), AT_BLE_SUCCESS, AT_BLE_UUID_16, DBG_LOG, DBG_LOG_CONT, at_ble_scan_info_t::dev_addr, gap_dev_scan(), LINK_LOSS_SERVICE_UUID, MAX_SCAN_DEVICE, PXP_ASCII_TO_DECIMAL_VALUE, pxp_monitor_connect_request(), pxp_supp_scan_index, scan_index, scan_info, scan_info_parse(), at_ble_uuid_t::type, and at_ble_uuid_t::uuid.

at_ble_status_t pxp_monitor_service_discover ( at_ble_handle_t handle )

Discover all services.

Parameters

[in] connection handle.

Returns: AT_BLE_SUCCESS operation programmed successfully.; AT_BLE_INVALID_PARAM incorrect parameter.; AT_BLE_FAILURE Generic error.

References at_ble_primary_service_discover_all(), AT_BLE_SUCCESS, DBG_LOG, DBG_LOG_DEV, GATT_DISCOVERY_ENDING_HANDLE, GATT_DISCOVERY_STARTING_HANDLE, and status.

Referenced by pxp_monitor_encryption_change_handler(), and pxp_monitor_pair_done_handler().

at_ble_status_t pxp_monitor_service_found_handler ( void * params )

Discover the Proximity services.

Search will go from start_handle to end_handle, whenever a service is found and compare with proximity services and stores the respective handlers PXP_MONITOR_CONNECTED_STATE_HANDLER event i.

Parameters

[in] at_ble_primary_service_found_t Primary service parameter

References AT_BLE_INVALID_PARAM, AT_BLE_SUCCESS, AT_BLE_UUID_16, gatt_txps_char_handler::char_discovery, gatt_lls_char_handler::char_discovery, gatt_ias_char_handler::char_discovery, gatt_ias_char_handler::conn_handle, gatt_txps_char_handler::conn_handle, gatt_lls_char_handler::conn_handle, at_ble_primary_service_found_t::conn_handle, DBG_LOG, DBG_LOG_PTS, DISCOVER_SUCCESS, gatt_txps_char_handler::end_handle, gatt_lls_char_handler::end_handle, gatt_ias_char_handler::end_handle, at_ble_primary_service_found_t::end_handle, IMMEDIATE_ALERT_SERVICE_UUID, LINK_LOSS_SERVICE_UUID, at_ble_primary_service_found_t::service_uuid, gatt_txps_char_handler::start_handle, gatt_lls_char_handler::start_handle, gatt_ias_char_handler::start_handle, at_ble_primary_service_found_t::start_handle, status, TX_POWER_SERVICE_UUID, at_ble_uuid_t::type, and at_ble_uuid_t::uuid.