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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_ias/ble_ias.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_ias/ble_ias.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_ias/ble_ias.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_ias/ble_ias.c new file mode 100644 index 0000000..55a0b20 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_ias/ble_ias.c @@ -0,0 +1,242 @@ +/** + * 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_IAS) +#include "ble_ias.h" +#include <string.h> +#include "ble_srv_common.h" + +#define NRF_LOG_MODULE_NAME ble_ias +#if BLE_IAS_CONFIG_LOG_ENABLED +#define NRF_LOG_LEVEL BLE_IAS_CONFIG_LOG_LEVEL +#define NRF_LOG_INFO_COLOR BLE_IAS_CONFIG_INFO_COLOR +#define NRF_LOG_DEBUG_COLOR BLE_IAS_CONFIG_DEBUG_COLOR +#else // BLE_IAS_CONFIG_LOG_ENABLED +#define NRF_LOG_LEVEL 0 +#endif // BLE_IAS_CONFIG_LOG_ENABLED +#include "nrf_log.h" +NRF_LOG_MODULE_REGISTER(); + + +#define INITIAL_ALERT_LEVEL BLE_CHAR_ALERT_LEVEL_NO_ALERT + + +/**@brief Function for handling the Connect event. + * + * @param[in] p_ias Immediate Alert Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_connect(ble_ias_t * p_ias, ble_evt_t const * p_ble_evt) +{ + ret_code_t err_code; + ble_ias_client_context_t * p_client = NULL; + + err_code = blcm_link_ctx_get(p_ias->p_link_ctx_storage, + p_ble_evt->evt.gap_evt.conn_handle, + (void *) &p_client); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.", + p_ble_evt->evt.gap_evt.conn_handle); + } + else + { + p_client->alert_level = INITIAL_ALERT_LEVEL; + } +} + + +/**@brief Function for handling the Write event. + * + * @param[in] p_ias Immediate Alert Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_write(ble_ias_t * p_ias, ble_evt_t const * p_ble_evt) +{ + ble_gatts_evt_write_t const * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write; + + if ((p_evt_write->handle == p_ias->alert_level_handles.value_handle) && (p_evt_write->len == 1)) + { + // Alert level written, call application event handler + ret_code_t err_code; + ble_ias_evt_t evt; + ble_ias_client_context_t * p_client; + + err_code = blcm_link_ctx_get(p_ias->p_link_ctx_storage, + p_ble_evt->evt.gatts_evt.conn_handle, + (void *) &p_client); + if (err_code != NRF_SUCCESS) + { + NRF_LOG_ERROR("Link context for 0x%02X connection handle could not be fetched.", + p_ble_evt->evt.gatts_evt.conn_handle); + } + else + { + p_client->alert_level = p_evt_write->data[0]; + } + + evt.evt_type = BLE_IAS_EVT_ALERT_LEVEL_UPDATED; + evt.conn_handle = p_ble_evt->evt.gatts_evt.conn_handle; + evt.p_link_ctx = p_client; + + p_ias->evt_handler(p_ias, &evt); + } +} + + +void ble_ias_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) +{ + ble_ias_t * p_ias = (ble_ias_t *)p_context; + + switch (p_ble_evt->header.evt_id) + { + case BLE_GAP_EVT_CONNECTED: + on_connect(p_ias, p_ble_evt); + break; + + case BLE_GATTS_EVT_WRITE: + on_write(p_ias, p_ble_evt); + break; + + default: + // No implementation needed. + break; + } +} + + +/**@brief Function for adding Alert Level characteristics. + * + * @param[in] p_ias Immediate Alert Service structure. + * @param[in] p_ias_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static uint32_t alert_level_char_add(ble_ias_t * p_ias) +{ + 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.write_wo_resp = 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)); + + BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&attr_md.read_perm); + BLE_GAP_CONN_SEC_MODE_SET_ENC_NO_MITM(&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 = 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_ias->service_handle, + &char_md, + &attr_char_value, + &p_ias->alert_level_handles); +} + + +uint32_t ble_ias_init(ble_ias_t * p_ias, const ble_ias_init_t * p_ias_init) +{ + uint32_t err_code; + ble_uuid_t ble_uuid; + + // Initialize service structure + if (p_ias_init->evt_handler == NULL) + { + return NRF_ERROR_INVALID_PARAM; + } + p_ias->evt_handler = p_ias_init->evt_handler; + + // Add service + BLE_UUID_BLE_ASSIGN(ble_uuid, BLE_UUID_IMMEDIATE_ALERT_SERVICE); + + err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, + &ble_uuid, + &p_ias->service_handle); + VERIFY_SUCCESS(err_code); + + // Add alert level characteristic + err_code = alert_level_char_add(p_ias); + VERIFY_SUCCESS(err_code); + + return err_code; +} + + +uint32_t ble_ias_alert_level_get(ble_ias_t * p_ias, uint16_t conn_handle, uint8_t * p_alert_level) +{ + ret_code_t err_code; + ble_ias_client_context_t * p_client; + + err_code = blcm_link_ctx_get(p_ias->p_link_ctx_storage, conn_handle, (void *) &p_client); + VERIFY_SUCCESS(err_code); + + *p_alert_level = p_client->alert_level; + return NRF_SUCCESS; +} + +#endif // NRF_MODULE_ENABLED(BLE_IAS) |