Nordic stack and drivers for the mbed BLE API
Dependents: BLE_ANCS_SDAPI BLE_temperature BLE_HeartRate writable_gatt ... more
Diff: TARGET_MCU_NRF51822/sdk/source/ble/common/ble_conn_params.h
- Revision:
- 638:c90ae1400bf2
diff -r f7faad332abc -r c90ae1400bf2 TARGET_MCU_NRF51822/sdk/source/ble/common/ble_conn_params.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_MCU_NRF51822/sdk/source/ble/common/ble_conn_params.h Wed Sep 14 14:39:43 2016 +0100 @@ -0,0 +1,131 @@ +/* + * Copyright (c) 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 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 other + * contributors to this software may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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. + * + */ + +/** @file + * + * @defgroup ble_sdk_lib_conn_params Connection Parameters Negotiation + * @{ + * @ingroup ble_sdk_lib + * @brief Module for initiating and executing a connection parameters negotiation procedure. + */ + +#ifndef BLE_CONN_PARAMS_H__ +#define BLE_CONN_PARAMS_H__ + +#include <stdint.h> +#include "nrf_ble.h" +#include "ble_srv_common.h" + +/**@brief Connection Parameters Module event type. */ +typedef enum +{ + BLE_CONN_PARAMS_EVT_FAILED , /**< Negotiation procedure failed. */ + BLE_CONN_PARAMS_EVT_SUCCEEDED /**< Negotiation procedure succeeded. */ +} ble_conn_params_evt_type_t; + +/**@brief Connection Parameters Module event. */ +typedef struct +{ + ble_conn_params_evt_type_t evt_type; /**< Type of event. */ +} ble_conn_params_evt_t; + +/**@brief Connection Parameters Module event handler type. */ +typedef void (*ble_conn_params_evt_handler_t) (ble_conn_params_evt_t * p_evt); + +/**@brief Connection Parameters Module init structure. This contains all options and data needed for + * initialization of the connection parameters negotiation module. */ +typedef struct +{ + ble_gap_conn_params_t * p_conn_params; /**< Pointer to the connection parameters desired by the application. When calling ble_conn_params_init, if this parameter is set to NULL, the connection parameters will be fetched from host. */ + uint32_t first_conn_params_update_delay; /**< Time from initiating event (connect or start of notification) to first time sd_ble_gap_conn_param_update is called (in number of timer ticks). */ + uint32_t next_conn_params_update_delay; /**< Time between each call to sd_ble_gap_conn_param_update after the first (in number of timer ticks). Recommended value 30 seconds as per BLUETOOTH SPECIFICATION Version 4.0. */ + uint8_t max_conn_params_update_count; /**< Number of attempts before giving up the negotiation. */ + uint16_t start_on_notify_cccd_handle; /**< If procedure is to be started when notification is started, set this to the handle of the corresponding CCCD. Set to BLE_GATT_HANDLE_INVALID if procedure is to be started on connect event. */ + bool disconnect_on_fail; /**< Set to TRUE if a failed connection parameters update shall cause an automatic disconnection, set to FALSE otherwise. */ + ble_conn_params_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Connection Parameters. */ + ble_srv_error_handler_t error_handler; /**< Function to be called in case of an error. */ +} ble_conn_params_init_t; + + +/**@brief Function for initializing the Connection Parameters module. + * + * @note If the negotiation procedure should be triggered when notification/indication of + * any characteristic is enabled by the peer, then this function must be called after + * having initialized the services. + * + * @param[in] p_init This contains information needed to initialize this module. + * + * @return NRF_SUCCESS on successful initialization, otherwise an error code. + */ +uint32_t ble_conn_params_init(const ble_conn_params_init_t * p_init); + +/**@brief Function for stopping the Connection Parameters module. + * + * @details This function is intended to be used by the application to clean up the connection + * parameters update module. This will stop the connection parameters update timer if + * running, thereby preventing any impending connection parameters update procedure. This + * function must be called by the application when it needs to clean itself up (for + * example, before disabling the bluetooth SoftDevice) so that an unwanted timer expiry + * event can be avoided. + * + * @return NRF_SUCCESS on successful initialization, otherwise an error code. + */ +uint32_t ble_conn_params_stop(void); + +/**@brief Function for changing the current connection parameters to a new set. + * + * @details Use this function to change the connection parameters to a new set of parameter + * (ie different from the ones given at init of the module). + * This function is usefull for scenario where most of the time the application + * needs a relatively big connection interval, and just sometimes, for a temporary + * period requires shorter connection interval, for example to transfer a higher + * amount of data. + * If the given parameters does not match the current connection's parameters + * this function initiates a new negotiation. + * + * @param[in] new_params This contains the new connections parameters to setup. + * + * @return NRF_SUCCESS on successful initialization, otherwise an error code. + */ +uint32_t ble_conn_params_change_conn_params(ble_gap_conn_params_t *new_params); + +/**@brief Function for handling the Application's BLE Stack events. + * + * @details Handles all events from the BLE stack that are of interest to this module. + * + * @param[in] p_ble_evt The event received from the BLE stack. + */ +void ble_conn_params_on_ble_evt(ble_evt_t * p_ble_evt); + +#endif // BLE_CONN_PARAMS_H__ + +/** @} */