uint32_t ble_nus_init()

in Firmware/Platform_NordicSDK/EPXPlatform_BLE_DualNUS.c [252:354]

• 74 lines of code
• 4 McCabe index (conditional complexity)

uint32_t ble_nus_init(ble_nus_t * p_nus, ble_nus_init_t const * p_nus_init)
{
    ret_code_t            err_code;
    ble_uuid_t            ble_uuid;
    ble_uuid128_t         nus_base_uuid = NUS_BASE_UUID;
    ble_add_char_params_t add_char_params;

    VERIFY_PARAM_NOT_NULL(p_nus);
    VERIFY_PARAM_NOT_NULL(p_nus_init);

    // Initialize the service structure.
    p_nus->data_handler = p_nus_init->data_handler;

    /**@snippet [Adding proprietary Service to the SoftDevice] */
    // Add a custom base UUID.
    err_code = sd_ble_uuid_vs_add(&nus_base_uuid, &p_nus->uuid_type);
    VERIFY_SUCCESS(err_code);

    ble_uuid.type = p_nus->uuid_type;
    ble_uuid.uuid = BLE_UUID_NUS_SERVICE;

    // Add the service.
    err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY,
                                        &ble_uuid,
                                        &p_nus->service_handle);
    /**@snippet [Adding proprietary Service to the SoftDevice] */
    VERIFY_SUCCESS(err_code);

    // Add the RX Characteristic.
    memset(&add_char_params, 0, sizeof(add_char_params));
    add_char_params.uuid                     = BLE_UUID_NUS_RX_CHARACTERISTIC;
    add_char_params.uuid_type                = p_nus->uuid_type;
    add_char_params.max_len                  = BLE_NUS_MAX_RX_CHAR_LEN;
    add_char_params.init_len                 = sizeof(uint8_t);
    add_char_params.is_var_len               = true;
    add_char_params.char_props.write         = 1;
    add_char_params.char_props.write_wo_resp = 1;

	add_char_params.read_access = SEC_OPEN;
	add_char_params.write_access = SEC_OPEN;

    err_code = characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->rx_handles);
    if (err_code != NRF_SUCCESS)
    {
        return err_code;
    }

    // Add the TX Characteristic.
    /**@snippet [Adding proprietary characteristic to the SoftDevice] */
    memset(&add_char_params, 0, sizeof(add_char_params));
    add_char_params.uuid              = BLE_UUID_NUS_TX_CHARACTERISTIC;
    add_char_params.uuid_type         = p_nus->uuid_type;
    add_char_params.max_len           = BLE_NUS_MAX_TX_CHAR_LEN;
    add_char_params.init_len          = sizeof(uint8_t);
    add_char_params.is_var_len        = true;
    add_char_params.char_props.notify = 1;

	add_char_params.read_access = SEC_OPEN;
	add_char_params.write_access = SEC_OPEN;
	add_char_params.cccd_write_access = SEC_OPEN;

	err_code = characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->tx_handles);
	if (err_code != NRF_SUCCESS)
	{
		return err_code;
	}

	// Add the ARX Characteristic.
	memset(&add_char_params, 0, sizeof(add_char_params));
	add_char_params.uuid                     = BLE_UUID_NUS_ARX_CHARACTERISTIC;
	add_char_params.uuid_type                = p_nus->uuid_type;
	add_char_params.max_len                  = BLE_NUS_MAX_RX_CHAR_LEN;
	add_char_params.init_len                 = sizeof(uint8_t);
	add_char_params.is_var_len               = true;
	add_char_params.char_props.write         = 1;
	add_char_params.char_props.write_wo_resp = 1;

	add_char_params.read_access = SEC_OPEN;
	add_char_params.write_access = SEC_OPEN;

	err_code = characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->arx_handles);
	if (err_code != NRF_SUCCESS)
	{
		return err_code;
	}

	// Add the ATX Characteristic.
	/**@snippet [Adding proprietary characteristic to the SoftDevice] */
	memset(&add_char_params, 0, sizeof(add_char_params));
	add_char_params.uuid              = BLE_UUID_NUS_ATX_CHARACTERISTIC;
	add_char_params.uuid_type         = p_nus->uuid_type;
	add_char_params.max_len           = BLE_NUS_MAX_TX_CHAR_LEN;
	add_char_params.init_len          = sizeof(uint8_t);
	add_char_params.is_var_len        = true;
	add_char_params.char_props.notify = 1;

	add_char_params.read_access = SEC_OPEN;
	add_char_params.write_access = SEC_OPEN;
	add_char_params.cccd_write_access = SEC_OPEN;

	return characteristic_add(p_nus->service_handle, &add_char_params, &p_nus->atx_handles);
	/**@snippet [Adding proprietary characteristic to the SoftDevice] */
}