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- /**
- * Copyright (c) 2012 - 2020, 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_gls Glucose Service
- * @{
- * @ingroup ble_sdk_srv
- * @brief Glucose Service module.
- *
- * @details This module implements the Glucose Service.
- *
- * @note The application must register this module as BLE event observer using the
- * NRF_SDH_BLE_OBSERVER macro. Example:
- * @code
- * ble_gls_t instance;
- * NRF_SDH_BLE_OBSERVER(anything, BLE_GLS_BLE_OBSERVER_PRIO,
- * ble_gls_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_GLS_H__
- #define BLE_GLS_H__
- #include <stdint.h>
- #include <stdbool.h>
- #include "ble.h"
- #include "ble_srv_common.h"
- #include "ble_date_time.h"
- #include "nrf_ble_gq.h"
- #include "nrf_sdh_ble.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- /**@brief Macro for defining a ble_gls instance.
- *
- * @param _name Name of the instance.
- * @hideinitializer
- */
- #define BLE_GLS_DEF(_name) \
- static ble_gls_t _name; \
- NRF_SDH_BLE_OBSERVER(_name ## _obs, \
- BLE_GLS_BLE_OBSERVER_PRIO, \
- ble_gls_on_ble_evt, &_name)
- /**@brief Glucose feature */
- #define BLE_GLS_FEATURE_LOW_BATT 0x0001 /**< Low Battery Detection During Measurement Supported */
- #define BLE_GLS_FEATURE_MALFUNC 0x0002 /**< Sensor Malfunction Detection Supported */
- #define BLE_GLS_FEATURE_SAMPLE_SIZE 0x0004 /**< Sensor Sample Size Supported */
- #define BLE_GLS_FEATURE_INSERT_ERR 0x0008 /**< Sensor Strip Insertion Error Detection Supported */
- #define BLE_GLS_FEATURE_TYPE_ERR 0x0010 /**< Sensor Strip Type Error Detection Supported */
- #define BLE_GLS_FEATURE_RES_HIGH_LOW 0x0020 /**< Sensor Result High-Low Detection Supported */
- #define BLE_GLS_FEATURE_TEMP_HIGH_LOW 0x0040 /**< Sensor Temperature High-Low Detection Supported */
- #define BLE_GLS_FEATURE_READ_INT 0x0080 /**< Sensor Read Interrupt Detection Supported */
- #define BLE_GLS_FEATURE_GENERAL_FAULT 0x0100 /**< General Device Fault Supported */
- #define BLE_GLS_FEATURE_TIME_FAULT 0x0200 /**< Time Fault Supported */
- #define BLE_GLS_FEATURE_MULTI_BOND 0x0400 /**< Multiple Bond Supported */
- /**@brief Glucose measurement flags */
- #define BLE_GLS_MEAS_FLAG_TIME_OFFSET 0x01 /**< Time Offset Present */
- #define BLE_GLS_MEAS_FLAG_CONC_TYPE_LOC 0x02 /**< Glucose Concentration, Type, and Sample Location Present */
- #define BLE_GLS_MEAS_FLAG_UNITS_KG_L 0x00 /**< Glucose Concentration Units kg/L */
- #define BLE_GLS_MEAS_FLAG_UNITS_MOL_L 0x04 /**< Glucose Concentration Units mol/L */
- #define BLE_GLS_MEAS_FLAG_SENSOR_STATUS 0x08 /**< Sensor Status Annunciation Present */
- #define BLE_GLS_MEAS_FLAG_CONTEXT_INFO 0x10 /**< Context Information Follows */
- /**@brief Glucose measurement type */
- #define BLE_GLS_MEAS_TYPE_CAP_BLOOD 1 /**< Capillary whole blood */
- #define BLE_GLS_MEAS_TYPE_CAP_PLASMA 2 /**< Capillary plasma */
- #define BLE_GLS_MEAS_TYPE_VEN_BLOOD 3 /**< Venous whole blood */
- #define BLE_GLS_MEAS_TYPE_VEN_PLASMA 4 /**< Venous plasma */
- #define BLE_GLS_MEAS_TYPE_ART_BLOOD 5 /**< Arterial whole blood */
- #define BLE_GLS_MEAS_TYPE_ART_PLASMA 6 /**< Arterial plasma */
- #define BLE_GLS_MEAS_TYPE_UNDET_BLOOD 7 /**< Undetermined whole blood */
- #define BLE_GLS_MEAS_TYPE_UNDET_PLASMA 8 /**< Undetermined plasma */
- #define BLE_GLS_MEAS_TYPE_FLUID 9 /**< Interstitial fluid (ISF) */
- #define BLE_GLS_MEAS_TYPE_CONTROL 10 /**< Control solution */
- /**@brief Glucose measurement location */
- #define BLE_GLS_MEAS_LOC_FINGER 1 /**< Finger */
- #define BLE_GLS_MEAS_LOC_AST 2 /**< Alternate Site Test (AST) */
- #define BLE_GLS_MEAS_LOC_EAR 3 /**< Earlobe */
- #define BLE_GLS_MEAS_LOC_CONTROL 4 /**< Control solution */
- #define BLE_GLS_MEAS_LOC_NOT_AVAIL 15 /**< Sample Location value not available */
- /**@brief Glucose sensor status annunciation */
- #define BLE_GLS_MEAS_STATUS_BATT_LOW 0x0001 /**< Device battery low at time of measurement */
- #define BLE_GLS_MEAS_STATUS_SENSOR_FAULT 0x0002 /**< Sensor malfunction or faulting at time of measurement */
- #define BLE_GLS_MEAS_STATUS_SAMPLE_SIZE 0x0004 /**< Sample size for blood or control solution insufficient at time of measurement */
- #define BLE_GLS_MEAS_STATUS_STRIP_INSERT 0x0008 /**< Strip insertion error */
- #define BLE_GLS_MEAS_STATUS_STRIP_TYPE 0x0010 /**< Strip type incorrect for device */
- #define BLE_GLS_MEAS_STATUS_RESULT_HIGH 0x0020 /**< Sensor result higher than the device can process */
- #define BLE_GLS_MEAS_STATUS_RESULT_LOW 0x0040 /**< Sensor result lower than the device can process */
- #define BLE_GLS_MEAS_STATUS_TEMP_HIGH 0x0080 /**< Sensor temperature too high for valid test/result at time of measurement */
- #define BLE_GLS_MEAS_STATUS_TEMP_LOW 0x0100 /**< Sensor temperature too low for valid test/result at time of measurement */
- #define BLE_GLS_MEAS_STATUS_STRIP_PULL 0x0200 /**< Sensor read interrupted because strip was pulled too soon at time of measurement */
- #define BLE_GLS_MEAS_STATUS_GENERAL_FAULT 0x0400 /**< General device fault has occurred in the sensor */
- #define BLE_GLS_MEAS_STATUS_TIME_FAULT 0x0800 /**< Time fault has occurred in the sensor and time may be inaccurate */
- /**@brief Glucose measurement context flags */
- #define BLE_GLS_CONTEXT_FLAG_CARB 0x01 /**< Carbohydrate id and carbohydrate present */
- #define BLE_GLS_CONTEXT_FLAG_MEAL 0x02 /**< Meal present */
- #define BLE_GLS_CONTEXT_FLAG_TESTER 0x04 /**< Tester-health present */
- #define BLE_GLS_CONTEXT_FLAG_EXERCISE 0x08 /**< Exercise duration and exercise intensity present */
- #define BLE_GLS_CONTEXT_FLAG_MED 0x10 /**< Medication ID and medication present */
- #define BLE_GLS_CONTEXT_FLAG_MED_KG 0x00 /**< Medication value units, kilograms */
- #define BLE_GLS_CONTEXT_FLAG_MED_L 0x20 /**< Medication value units, liters */
- #define BLE_GLS_CONTEXT_FLAG_HBA1C 0x40 /**< Hba1c present */
- #define BLE_GLS_CONTEXT_FLAG_EXT 0x80 /**< Extended flags present */
- /**@brief Glucose measurement context carbohydrate ID */
- #define BLE_GLS_CONTEXT_CARB_BREAKFAST 1 /**< Breakfast */
- #define BLE_GLS_CONTEXT_CARB_LUNCH 2 /**< Lunch */
- #define BLE_GLS_CONTEXT_CARB_DINNER 3 /**< Dinner */
- #define BLE_GLS_CONTEXT_CARB_SNACK 4 /**< Snack */
- #define BLE_GLS_CONTEXT_CARB_DRINK 5 /**< Drink */
- #define BLE_GLS_CONTEXT_CARB_SUPPER 6 /**< Supper */
- #define BLE_GLS_CONTEXT_CARB_BRUNCH 7 /**< Brunch */
- /**@brief Glucose measurement context meal */
- #define BLE_GLS_CONTEXT_MEAL_PREPRANDIAL 1 /**< Preprandial (before meal) */
- #define BLE_GLS_CONTEXT_MEAL_POSTPRANDIAL 2 /**< Postprandial (after meal) */
- #define BLE_GLS_CONTEXT_MEAL_FASTING 3 /**< Fasting */
- #define BLE_GLS_CONTEXT_MEAL_CASUAL 4 /**< Casual (snacks, drinks, etc.) */
- #define BLE_GLS_CONTEXT_MEAL_BEDTIME 5 /**< Bedtime */
- /**@brief Glucose measurement context tester */
- #define BLE_GLS_CONTEXT_TESTER_SELF 1 /**< Self */
- #define BLE_GLS_CONTEXT_TESTER_PRO 2 /**< Health care professional */
- #define BLE_GLS_CONTEXT_TESTER_LAB 3 /**< Lab test */
- #define BLE_GLS_CONTEXT_TESTER_NOT_AVAIL 15 /**< Tester value not available */
- /**@brief Glucose measurement context health */
- #define BLE_GLS_CONTEXT_HEALTH_MINOR 1 /**< Minor health issues */
- #define BLE_GLS_CONTEXT_HEALTH_MAJOR 2 /**< Major health issues */
- #define BLE_GLS_CONTEXT_HEALTH_MENSES 3 /**< During menses */
- #define BLE_GLS_CONTEXT_HEALTH_STRESS 4 /**< Under stress */
- #define BLE_GLS_CONTEXT_HEALTH_NONE 5 /**< No health issues */
- #define BLE_GLS_CONTEXT_HEALTH_NOT_AVAIL 15 /**< Health value not available */
- /**@brief Glucose measurement context medication ID */
- #define BLE_GLS_CONTEXT_MED_RAPID 1 /**< Rapid acting insulin */
- #define BLE_GLS_CONTEXT_MED_SHORT 2 /**< Short acting insulin */
- #define BLE_GLS_CONTEXT_MED_INTERMED 3 /**< Intermediate acting insulin */
- #define BLE_GLS_CONTEXT_MED_LONG 4 /**< Long acting insulin */
- #define BLE_GLS_CONTEXT_MED_PREMIX 5 /**< Pre-mixed insulin */
- /**@brief SFLOAT format (IEEE-11073 16-bit FLOAT, meaning 4 bits for exponent (base 10) and 12 bits mantissa) */
- typedef struct
- {
- int8_t exponent; /**< Base 10 exponent, should be using only 4 bits */
- int16_t mantissa; /**< Mantissa, should be using only 12 bits */
- } sfloat_t;
- /**@brief Glucose Service event type. */
- typedef enum
- {
- BLE_GLS_EVT_NOTIFICATION_ENABLED, /**< Glucose value notification enabled event. */
- BLE_GLS_EVT_NOTIFICATION_DISABLED /**< Glucose value notification disabled event. */
- } ble_gls_evt_type_t;
- /**@brief Glucose Service event. */
- typedef struct
- {
- ble_gls_evt_type_t evt_type; /**< Type of event. */
- } ble_gls_evt_t;
- // Forward declaration of the ble_gls_t type.
- typedef struct ble_gls_s ble_gls_t;
- /**@brief Glucose Service event handler type. */
- typedef void (*ble_gls_evt_handler_t)(ble_gls_t * p_gls, ble_gls_evt_t * p_evt);
- /**@brief Glucose Measurement structure. This contains glucose measurement value. */
- typedef struct
- {
- uint8_t flags; /**< Flags */
- uint16_t sequence_number; /**< Sequence number */
- ble_date_time_t base_time; /**< Time stamp */
- int16_t time_offset; /**< Time offset */
- sfloat_t glucose_concentration; /**< Glucose concentration */
- uint8_t type; /**< Type */
- uint8_t sample_location; /**< Sample location */
- uint16_t sensor_status_annunciation; /**< Sensor status annunciation */
- } ble_gls_meas_t;
- /**@brief Glucose measurement context structure */
- typedef struct
- {
- uint8_t flags; /**< Flags */
- uint8_t extended_flags; /**< Extended Flags */
- uint8_t carbohydrate_id; /**< Carbohydrate ID */
- sfloat_t carbohydrate; /**< Carbohydrate */
- uint8_t meal; /**< Meal */
- uint8_t tester_and_health; /**< Tester and health */
- uint16_t exercise_duration; /**< Exercise Duration */
- uint8_t exercise_intensity; /**< Exercise Intensity */
- uint8_t medication_id; /**< Medication ID */
- sfloat_t medication; /**< Medication */
- uint16_t hba1c; /**< HbA1c */
- } ble_gls_meas_context_t;
- /**@brief Glucose measurement record */
- typedef struct
- {
- ble_gls_meas_t meas; /**< Glucose measurement */
- ble_gls_meas_context_t context; /**< Glucose measurement context */
- } ble_gls_rec_t;
- /**@brief Glucose Service init structure. This contains all options and data needed for
- * initialization of the service. */
- typedef struct
- {
- ble_gls_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Glucose Service. */
- ble_srv_error_handler_t error_handler; /**< Function to be called in case of an error. */
- uint16_t feature; /**< Glucose Feature value indicating supported features. */
- bool is_context_supported; /**< Determines if optional Glucose Measurement Context is to be supported. */
- security_req_t gl_meas_cccd_wr_sec; /**< Security requirement for writing glucose measurement characteristic CCCD. */
- security_req_t gl_feature_rd_sec; /**< Security requirement for reading glucose feature characteristic. */
- security_req_t racp_cccd_wr_sec; /**< Security requirement for writing RACP Characteristic CCCD. */
- security_req_t racp_wr_sec; /**< Security requirement for writing RACP Characteristic. (Service specification mandates authentication) */
- nrf_ble_gq_t * p_gatt_queue; /**< Pointer to BLE GATT Queue instance. */
- } ble_gls_init_t;
- /**@brief Glucose Service structure. This contains various status information for the service. */
- struct ble_gls_s
- {
- ble_gls_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Glucose Service. */
- ble_srv_error_handler_t error_handler; /**< Function to be called in case of an error. */
- uint16_t service_handle; /**< Handle of Glucose Service (as provided by the BLE stack). */
- ble_gatts_char_handles_t glm_handles; /**< Handles related to the Glucose Measurement characteristic. */
- ble_gatts_char_handles_t glm_context_handles; /**< Handles related to the Glucose Measurement Context characteristic. */
- ble_gatts_char_handles_t glf_handles; /**< Handles related to the Glucose Feature characteristic. */
- ble_gatts_char_handles_t racp_handles; /**< Handles related to the Record Access 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). */
- nrf_ble_gq_t * p_gatt_queue; /**< Pointer to BLE GATT Queue instance. */
- uint16_t feature;
- bool is_context_supported;
- };
- /**@brief Function for initializing the Glucose Service.
- *
- * @details This call allows the application to initialize the Glucose Service.
- *
- * @param[out] p_gls Glucose 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_gls_init Information needed to initialize the service.
- *
- * @return NRF_SUCCESS on successful initialization of service, otherwise an error code.
- */
- uint32_t ble_gls_init(ble_gls_t * p_gls, ble_gls_init_t const * p_gls_init);
- /**@brief Function for handling the Application's BLE Stack events.
- *
- * @details Handles all events from the BLE stack of interest to the Glucose Service.
- *
- * @param[in] p_ble_evt Event received from the BLE stack.
- * @param[in] p_context Glucose Service structure.
- */
- void ble_gls_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context);
- /**@brief Function for reporting a new glucose measurement to the glucose service module.
- *
- * @details The application calls this function after having performed a new glucose measurement.
- * The new measurement is recorded in the RACP database.
- *
- * @param[in] p_gls Glucose Service structure.
- * @param[in] p_rec Pointer to glucose record (measurement plus context).
- *
- * @return NRF_SUCCESS on success, otherwise an error code.
- */
- uint32_t ble_gls_glucose_new_meas(ble_gls_t * p_gls, ble_gls_rec_t * p_rec);
- #ifdef __cplusplus
- }
- #endif
- #endif // BLE_GLS_H__
- /** @} */
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