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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_hrs/ble_hrs.h')
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diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_hrs/ble_hrs.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_hrs/ble_hrs.h new file mode 100644 index 0000000..afc6c0a --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/ble_hrs/ble_hrs.h @@ -0,0 +1,266 @@ +/** + * 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. + * + */ +/** @file + * + * @defgroup ble_hrs Heart Rate Service + * @{ + * @ingroup ble_sdk_srv + * @brief Heart Rate Service module. + * + * @details This module implements the Heart Rate Service with the Heart Rate Measurement, + * Body Sensor Location and Heart Rate Control Point characteristics. + * During initialization it adds the Heart Rate Service and Heart Rate Measurement + * characteristic to the BLE stack database. Optionally it also adds the + * Body Sensor Location and Heart Rate Control Point characteristics. + * + * If enabled, notification of the Heart Rate Measurement characteristic is performed + * when the application calls ble_hrs_heart_rate_measurement_send(). + * + * The Heart Rate Service also provides a set of functions for manipulating the + * various fields in the Heart Rate Measurement characteristic, as well as setting + * the Body Sensor Location characteristic value. + * + * If an event handler is supplied by the application, the Heart Rate Service will + * generate Heart Rate Service events to the application. + * + * @note The application must register this module as BLE event observer using the + * NRF_SDH_BLE_OBSERVER macro. Example: + * @code + * ble_hrs_t instance; + * NRF_SDH_BLE_OBSERVER(anything, BLE_HRS_BLE_OBSERVER_PRIO, + * ble_hrs_on_ble_evt, &instance); + * @endcode + * + * @note Attention! + * To maintain compliance with Nordic Semiconductor ASA Bluetooth profile + * qualification listings, this section of source code must not be modified. + */ + +#ifndef BLE_HRS_H__ +#define BLE_HRS_H__ + +#include <stdint.h> +#include <stdbool.h> +#include "ble.h" +#include "ble_srv_common.h" +#include "nrf_sdh_ble.h" +#include "nrf_ble_gatt.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/**@brief Macro for defining a ble_hrs instance. + * + * @param _name Name of the instance. + * @hideinitializer + */ +#define BLE_HRS_DEF(_name) \ +static ble_hrs_t _name; \ +NRF_SDH_BLE_OBSERVER(_name ## _obs, \ + BLE_HRS_BLE_OBSERVER_PRIO, \ + ble_hrs_on_ble_evt, &_name) + +// Body Sensor Location values +#define BLE_HRS_BODY_SENSOR_LOCATION_OTHER 0 +#define BLE_HRS_BODY_SENSOR_LOCATION_CHEST 1 +#define BLE_HRS_BODY_SENSOR_LOCATION_WRIST 2 +#define BLE_HRS_BODY_SENSOR_LOCATION_FINGER 3 +#define BLE_HRS_BODY_SENSOR_LOCATION_HAND 4 +#define BLE_HRS_BODY_SENSOR_LOCATION_EAR_LOBE 5 +#define BLE_HRS_BODY_SENSOR_LOCATION_FOOT 6 + +#define BLE_HRS_MAX_BUFFERED_RR_INTERVALS 20 /**< Size of RR Interval buffer inside service. */ + + +/**@brief Heart Rate Service event type. */ +typedef enum +{ + BLE_HRS_EVT_NOTIFICATION_ENABLED, /**< Heart Rate value notification enabled event. */ + BLE_HRS_EVT_NOTIFICATION_DISABLED /**< Heart Rate value notification disabled event. */ +} ble_hrs_evt_type_t; + +/**@brief Heart Rate Service event. */ +typedef struct +{ + ble_hrs_evt_type_t evt_type; /**< Type of event. */ +} ble_hrs_evt_t; + +// Forward declaration of the ble_hrs_t type. +typedef struct ble_hrs_s ble_hrs_t; + +/**@brief Heart Rate Service event handler type. */ +typedef void (*ble_hrs_evt_handler_t) (ble_hrs_t * p_hrs, ble_hrs_evt_t * p_evt); + +/**@brief Heart Rate Service init structure. This contains all options and data needed for + * initialization of the service. */ +typedef struct +{ + ble_hrs_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Heart Rate Service. */ + bool is_sensor_contact_supported; /**< Determines if sensor contact detection is to be supported. */ + uint8_t * p_body_sensor_location; /**< If not NULL, initial value of the Body Sensor Location characteristic. */ + ble_srv_cccd_security_mode_t hrs_hrm_attr_md; /**< Initial security level for heart rate service measurement attribute */ + ble_srv_security_mode_t hrs_bsl_attr_md; /**< Initial security level for body sensor location attribute */ +} ble_hrs_init_t; + +/**@brief Heart Rate Service structure. This contains various status information for the service. */ +struct ble_hrs_s +{ + ble_hrs_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Heart Rate Service. */ + bool is_expended_energy_supported; /**< TRUE if Expended Energy measurement is supported. */ + bool is_sensor_contact_supported; /**< TRUE if sensor contact detection is supported. */ + uint16_t service_handle; /**< Handle of Heart Rate Service (as provided by the BLE stack). */ + ble_gatts_char_handles_t hrm_handles; /**< Handles related to the Heart Rate Measurement characteristic. */ + ble_gatts_char_handles_t bsl_handles; /**< Handles related to the Body Sensor Location characteristic. */ + ble_gatts_char_handles_t hrcp_handles; /**< Handles related to the Heart Rate Control Point characteristic. */ + uint16_t conn_handle; /**< Handle of the current connection (as provided by the BLE stack, is BLE_CONN_HANDLE_INVALID if not in a connection). */ + bool is_sensor_contact_detected; /**< TRUE if sensor contact has been detected. */ + uint16_t rr_interval[BLE_HRS_MAX_BUFFERED_RR_INTERVALS]; /**< Set of RR Interval measurements since the last Heart Rate Measurement transmission. */ + uint16_t rr_interval_count; /**< Number of RR Interval measurements since the last Heart Rate Measurement transmission. */ + uint8_t max_hrm_len; /**< Current maximum HR measurement length, adjusted according to the current ATT MTU. */ +}; + + +/**@brief Function for initializing the Heart Rate Service. + * + * @param[out] p_hrs Heart Rate Service structure. This structure will have to be supplied by + * the application. It will be initialized by this function, and will later + * be used to identify this particular service instance. + * @param[in] p_hrs_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on successful initialization of service, otherwise an error code. + */ +uint32_t ble_hrs_init(ble_hrs_t * p_hrs, ble_hrs_init_t const * p_hrs_init); + + +/**@brief Function for handling the GATT module's events. + * + * @details Handles all events from the GATT module of interest to the Heart Rate Service. + * + * @param[in] p_hrs Heart Rate Service structure. + * @param[in] p_gatt_evt Event received from the GATT module. + */ +void ble_hrs_on_gatt_evt(ble_hrs_t * p_hrs, nrf_ble_gatt_evt_t const * p_gatt_evt); + + +/**@brief Function for handling the Application's BLE Stack events. + * + * @details Handles all events from the BLE stack of interest to the Heart Rate Service. + * + * @param[in] p_ble_evt Event received from the BLE stack. + * @param[in] p_context Heart Rate Service structure. + */ +void ble_hrs_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context); + + +/**@brief Function for sending heart rate measurement if notification has been enabled. + * + * @details The application calls this function after having performed a heart rate measurement. + * If notification has been enabled, the heart rate measurement data is encoded and sent to + * the client. + * + * @param[in] p_hrs Heart Rate Service structure. + * @param[in] heart_rate New heart rate measurement. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +uint32_t ble_hrs_heart_rate_measurement_send(ble_hrs_t * p_hrs, uint16_t heart_rate); + + +/**@brief Function for adding a RR Interval measurement to the RR Interval buffer. + * + * @details All buffered RR Interval measurements will be included in the next heart rate + * measurement message, up to the maximum number of measurements that will fit into the + * message. If the buffer is full, the oldest measurement in the buffer will be deleted. + * + * @param[in] p_hrs Heart Rate Service structure. + * @param[in] rr_interval New RR Interval measurement (will be buffered until the next + * transmission of Heart Rate Measurement). + */ +void ble_hrs_rr_interval_add(ble_hrs_t * p_hrs, uint16_t rr_interval); + + +/**@brief Function for checking if RR Interval buffer is full. + * + * @param[in] p_hrs Heart Rate Service structure. + * + * @return true if RR Interval buffer is full, false otherwise. + */ +bool ble_hrs_rr_interval_buffer_is_full(ble_hrs_t * p_hrs); + + +/**@brief Function for setting the state of the Sensor Contact Supported bit. + * + * @param[in] p_hrs Heart Rate Service structure. + * @param[in] is_sensor_contact_supported New state of the Sensor Contact Supported bit. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +uint32_t ble_hrs_sensor_contact_supported_set(ble_hrs_t * p_hrs, bool is_sensor_contact_supported); + + +/**@brief Function for setting the state of the Sensor Contact Detected bit. + * + * @param[in] p_hrs Heart Rate Service structure. + * @param[in] is_sensor_contact_detected TRUE if sensor contact is detected, FALSE otherwise. + */ +void ble_hrs_sensor_contact_detected_update(ble_hrs_t * p_hrs, bool is_sensor_contact_detected); + + +/**@brief Function for setting the Body Sensor Location. + * + * @details Sets a new value of the Body Sensor Location characteristic. The new value will be sent + * to the client the next time the client reads the Body Sensor Location characteristic. + * + * @param[in] p_hrs Heart Rate Service structure. + * @param[in] body_sensor_location New Body Sensor Location. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +uint32_t ble_hrs_body_sensor_location_set(ble_hrs_t * p_hrs, uint8_t body_sensor_location); + + +#ifdef __cplusplus +} +#endif + +#endif // BLE_HRS_H__ + +/** @} */ |