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- /**
- * Copyright (c) 2012 - 2020, Nordic Semiconductor ASA
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification,
- * are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this
- * list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form, except as embedded into a Nordic
- * Semiconductor ASA integrated circuit in a product or a software update for
- * such product, must reproduce the above copyright notice, this list of
- * conditions and the following disclaimer in the documentation and/or other
- * materials provided with the distribution.
- *
- * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
- * contributors may be used to endorse or promote products derived from this
- * software without specific prior written permission.
- *
- * 4. This software, with or without modification, must only be used with a
- * Nordic Semiconductor ASA integrated circuit.
- *
- * 5. Any software provided in binary form under this license must not be reverse
- * engineered, decompiled, modified and/or disassembled.
- *
- * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
- * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
- * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
- /* Attention!
- * To maintain compliance with Nordic Semiconductor ASA's Bluetooth profile
- * qualification listings, this section of source code must not be modified.
- */
- #include "sdk_common.h"
- #if NRF_MODULE_ENABLED(BLE_LLS)
- #include "ble_lls.h"
- #include <string.h>
- #include "ble_hci.h"
- #include "ble_srv_common.h"
- /**@brief Function for handling the Connect event.
- *
- * @param[in] p_lls Link Loss Service structure.
- * @param[in] p_ble_evt Event received from the BLE stack.
- */
- static void on_connect(ble_lls_t * p_lls, ble_evt_t const * p_ble_evt)
- {
- // Link reconnected, notify application with a no_alert event
- ble_lls_evt_t evt;
- p_lls->conn_handle = p_ble_evt->evt.gap_evt.conn_handle;
- evt.evt_type = BLE_LLS_EVT_LINK_LOSS_ALERT;
- evt.params.alert_level = BLE_CHAR_ALERT_LEVEL_NO_ALERT;
- p_lls->evt_handler(p_lls, &evt);
- }
- /**@brief Function for handling the Disconnect event.
- *
- * @param[in] p_lls Link Loss Service structure.
- * @param[in] p_ble_evt Event received from the BLE stack.
- */
- static void on_disconnect(ble_lls_t * p_lls, ble_evt_t const * p_ble_evt)
- {
- uint8_t reason = p_ble_evt->evt.gap_evt.params.disconnected.reason;
- if (reason == BLE_HCI_CONNECTION_TIMEOUT)
- {
- // Link loss detected, notify application
- uint32_t err_code;
- ble_lls_evt_t evt;
- evt.evt_type = BLE_LLS_EVT_LINK_LOSS_ALERT;
- err_code = ble_lls_alert_level_get(p_lls, &evt.params.alert_level);
- if (err_code == NRF_SUCCESS)
- {
- p_lls->evt_handler(p_lls, &evt);
- }
- else
- {
- if (p_lls->error_handler != NULL)
- {
- p_lls->error_handler(err_code);
- }
- }
- }
- }
- /**@brief Function for handling the Authentication Status event.
- *
- * @param[in] p_lls Link Loss Service structure.
- * @param[in] p_ble_evt Event received from the BLE stack.
- */
- static void on_auth_status(ble_lls_t * p_lls, ble_evt_t const * p_ble_evt)
- {
- if (p_ble_evt->evt.gap_evt.params.auth_status.auth_status == BLE_GAP_SEC_STATUS_SUCCESS)
- {
- ble_lls_evt_t evt;
- evt.evt_type = BLE_LLS_EVT_LINK_LOSS_ALERT;
- evt.params.alert_level = BLE_CHAR_ALERT_LEVEL_NO_ALERT;
- p_lls->evt_handler(p_lls, &evt);
- }
- }
- void ble_lls_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context)
- {
- ble_lls_t * p_lls = (ble_lls_t *)p_context;
- if (p_lls == NULL || p_ble_evt == NULL)
- {
- return;
- }
- switch (p_ble_evt->header.evt_id)
- {
- case BLE_GAP_EVT_CONNECTED:
- on_connect(p_lls, p_ble_evt);
- break;
- case BLE_GAP_EVT_DISCONNECTED:
- on_disconnect(p_lls, p_ble_evt);
- break;
- case BLE_GAP_EVT_AUTH_STATUS:
- on_auth_status(p_lls, p_ble_evt);
- break;
- default:
- // No implementation needed.
- break;
- }
- }
- uint32_t ble_lls_init(ble_lls_t * p_lls, const ble_lls_init_t * p_lls_init)
- {
- uint32_t err_code;
- ble_uuid_t ble_uuid;
- ble_add_char_params_t add_char_params;
- if (p_lls == NULL || p_lls_init == NULL)
- {
- return NRF_ERROR_NULL;
- }
- if (p_lls_init->evt_handler == NULL)
- {
- return NRF_ERROR_INVALID_PARAM;
- }
- // Initialize service structure
- p_lls->evt_handler = p_lls_init->evt_handler;
- p_lls->error_handler = p_lls_init->error_handler;
- // Add service
- BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_LINK_LOSS_SERVICE);
- err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
- &ble_uuid,
- &p_lls->service_handle);
- if (err_code != NRF_SUCCESS)
- {
- return err_code;
- }
- // Add alert level characteristic
- memset(&add_char_params, 0, sizeof(add_char_params));
- add_char_params.uuid = BLE_UUID_ALERT_LEVEL_CHAR;
- add_char_params.max_len = sizeof(uint8_t);
- add_char_params.char_props.read = 1;
- add_char_params.char_props.write = 1;
- add_char_params.write_access = p_lls_init->alert_level_wr_sec;
- add_char_params.read_access = p_lls_init->alert_level_rd_sec;
- add_char_params.init_len = sizeof(uint8_t);
- add_char_params.p_init_value = (uint8_t *) &(p_lls_init->initial_alert_level);
- return characteristic_add(p_lls->service_handle,
- &add_char_params,
- &p_lls->alert_level_handles);
- }
- uint32_t ble_lls_alert_level_get(ble_lls_t * p_lls, uint8_t * p_alert_level)
- {
- ble_gatts_value_t gatts_value;
- if (p_lls == NULL || p_alert_level == NULL)
- {
- return NRF_ERROR_NULL;
- }
- // Initialize value struct.
- memset(&gatts_value, 0, sizeof(gatts_value));
- gatts_value.len = sizeof(uint8_t);
- gatts_value.offset = 0;
- gatts_value.p_value = p_alert_level;
- return sd_ble_gatts_value_get(p_lls->conn_handle,
- p_lls->alert_level_handles.value_handle,
- &gatts_value);
- }
- #endif // NRF_MODULE_ENABLED(BLE_LLS)
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