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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_lls/ble_lls.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_lls/ble_lls.c | 260 |
1 files changed, 260 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_lls/ble_lls.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_lls/ble_lls.c new file mode 100644 index 0000000..ceb3102 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_lls/ble_lls.c @@ -0,0 +1,260 @@ +/** + * Copyright (c) 2012 - 2018, 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; + } +} + + +/**@brief Function for adding Alert Level characteristics. + * + * @param[in] p_lls Link Loss Service structure. + * @param[in] p_lls_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static uint32_t alert_level_char_add(ble_lls_t * p_lls, const ble_lls_init_t * p_lls_init) +{ + ble_gatts_char_md_t char_md; + ble_gatts_attr_t attr_char_value; + ble_uuid_t ble_uuid; + ble_gatts_attr_md_t attr_md; + uint8_t initial_alert_level; + + memset(&char_md, 0, sizeof(char_md)); + + char_md.char_props.read = 1; + char_md.char_props.write = 1; + char_md.p_char_user_desc = NULL; + char_md.p_char_pf = NULL; + char_md.p_user_desc_md = NULL; + char_md.p_cccd_md = NULL; + char_md.p_sccd_md = NULL; + + BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_ALERT_LEVEL_CHAR); + memset(&attr_md, 0, sizeof(attr_md)); + + attr_md.read_perm = p_lls_init->lls_attr_md.read_perm; + attr_md.write_perm = p_lls_init->lls_attr_md.write_perm; + attr_md.vloc = BLE_GATTS_VLOC_STACK; + attr_md.rd_auth = 0; + attr_md.wr_auth = 0; + attr_md.vlen = 0; + + memset(&attr_char_value, 0, sizeof(attr_char_value)); + initial_alert_level = p_lls_init->initial_alert_level; + + attr_char_value.p_uuid = &ble_uuid; + attr_char_value.p_attr_md = &attr_md; + attr_char_value.init_len = sizeof (uint8_t); + attr_char_value.init_offs = 0; + attr_char_value.max_len = sizeof (uint8_t); + attr_char_value.p_value = &initial_alert_level; + + return sd_ble_gatts_characteristic_add(p_lls->service_handle, + &char_md, + &attr_char_value, + &p_lls->alert_level_handles); +} + + +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; + + 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 + return alert_level_char_add(p_lls, p_lls_init); +} + + +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) |