/** * Copyright (c) 2013 - 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. * */ #include "sdk_common.h" #if NRF_MODULE_ENABLED(BLE_LBS) #include "ble_lbs.h" #include "ble_srv_common.h" /**@brief Function for handling the Write event. * * @param[in] p_lbs LED Button Service structure. * @param[in] p_ble_evt Event received from the BLE stack. */ static void on_write(ble_lbs_t * p_lbs, 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_lbs->led_char_handles.value_handle) && (p_evt_write->len == 1) && (p_lbs->led_write_handler != NULL)) { p_lbs->led_write_handler(p_ble_evt->evt.gap_evt.conn_handle, p_lbs, p_evt_write->data[0]); } } void ble_lbs_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) { ble_lbs_t * p_lbs = (ble_lbs_t *)p_context; switch (p_ble_evt->header.evt_id) { case BLE_GATTS_EVT_WRITE: on_write(p_lbs, p_ble_evt); break; default: // No implementation needed. break; } } /**@brief Function for adding the LED Characteristic. * * @param[in] p_lbs LED Button Service structure. * @param[in] p_lbs_init LED Button Service initialization structure. * * @retval NRF_SUCCESS on success, else an error value from the SoftDevice */ static uint32_t led_char_add(ble_lbs_t * p_lbs, const ble_lbs_init_t * p_lbs_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; 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.type = p_lbs->uuid_type; ble_uuid.uuid = LBS_UUID_LED_CHAR; memset(&attr_md, 0, sizeof(attr_md)); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&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)); 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 = NULL; return sd_ble_gatts_characteristic_add(p_lbs->service_handle, &char_md, &attr_char_value, &p_lbs->led_char_handles); } /**@brief Function for adding the Button Characteristic. * * @param[in] p_lbs LED Button Service structure. * @param[in] p_lbs_init LED Button Service initialization structure. * * @retval NRF_SUCCESS on success, else an error value from the SoftDevice */ static uint32_t button_char_add(ble_lbs_t * p_lbs, const ble_lbs_init_t * p_lbs_init) { ble_gatts_char_md_t char_md; ble_gatts_attr_md_t cccd_md; ble_gatts_attr_t attr_char_value; ble_uuid_t ble_uuid; ble_gatts_attr_md_t attr_md; memset(&cccd_md, 0, sizeof(cccd_md)); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&cccd_md.write_perm); cccd_md.vloc = BLE_GATTS_VLOC_STACK; memset(&char_md, 0, sizeof(char_md)); char_md.char_props.read = 1; char_md.char_props.notify = 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 = &cccd_md; char_md.p_sccd_md = NULL; ble_uuid.type = p_lbs->uuid_type; ble_uuid.uuid = LBS_UUID_BUTTON_CHAR; memset(&attr_md, 0, sizeof(attr_md)); BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm); BLE_GAP_CONN_SEC_MODE_SET_NO_ACCESS(&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)); 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 = NULL; return sd_ble_gatts_characteristic_add(p_lbs->service_handle, &char_md, &attr_char_value, &p_lbs->button_char_handles); } uint32_t ble_lbs_init(ble_lbs_t * p_lbs, const ble_lbs_init_t * p_lbs_init) { uint32_t err_code; ble_uuid_t ble_uuid; // Initialize service structure. p_lbs->led_write_handler = p_lbs_init->led_write_handler; // Add service. ble_uuid128_t base_uuid = {LBS_UUID_BASE}; err_code = sd_ble_uuid_vs_add(&base_uuid, &p_lbs->uuid_type); VERIFY_SUCCESS(err_code); ble_uuid.type = p_lbs->uuid_type; ble_uuid.uuid = LBS_UUID_SERVICE; err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &ble_uuid, &p_lbs->service_handle); VERIFY_SUCCESS(err_code); // Add characteristics. err_code = button_char_add(p_lbs, p_lbs_init); VERIFY_SUCCESS(err_code); err_code = led_char_add(p_lbs, p_lbs_init); VERIFY_SUCCESS(err_code); return NRF_SUCCESS; } uint32_t ble_lbs_on_button_change(uint16_t conn_handle, ble_lbs_t * p_lbs, uint8_t button_state) { ble_gatts_hvx_params_t params; uint16_t len = sizeof(button_state); memset(¶ms, 0, sizeof(params)); params.type = BLE_GATT_HVX_NOTIFICATION; params.handle = p_lbs->button_char_handles.value_handle; params.p_data = &button_state; params.p_len = &len; return sd_ble_gatts_hvx(conn_handle, ¶ms); } #endif // NRF_MODULE_ENABLED(BLE_LBS)