Wang Xinglu
High level Bluetooth Low Energy API and radio abstraction layer
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BLE_API
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Bluetooth Low Energy
Diff: ble/services/HeartRateService.h
- Revision:
- 1131:692ddf04fc42
- Parent:
- 1056:ce2fb3d09929
- Child:
- 1134:d540a48f650d
--- a/ble/services/HeartRateService.h Tue Jan 12 19:47:52 2016 +0000
+++ b/ble/services/HeartRateService.h Wed Apr 06 19:13:46 2016 +0100
@@ -1,194 +1,194 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2006-2013 ARM Limited
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef __BLE_HEART_RATE_SERVICE_H__
-#define __BLE_HEART_RATE_SERVICE_H__
-
-#include "ble/BLE.h"
-
-/**
-* @class HeartRateService
-* @brief BLE Service for HeartRate. This BLE Service contains the location of the sensor and the heart rate in beats per minute.
-* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml
-* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml
-* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml
-*/
-class HeartRateService {
-public:
- /**
- * @enum SensorLocation
- * @brief Location of the heart rate sensor on body.
- */
- enum {
- LOCATION_OTHER = 0, /*!< Other location. */
- LOCATION_CHEST, /*!< Chest. */
- LOCATION_WRIST, /*!< Wrist. */
- LOCATION_FINGER, /*!< Finger. */
- LOCATION_HAND, /*!< Hand. */
- LOCATION_EAR_LOBE, /*!< Earlobe. */
- LOCATION_FOOT, /*!< Foot. */
- };
-
-public:
- /**
- * @brief Constructor with 8-bit HRM Counter value.
- *
- * @param[ref] _ble
- * Reference to the underlying BLE.
- * @param[in] hrmCounter (8-bit)
- * Initial value for the HRM counter.
- * @param[in] location
- * Sensor's location.
- */
- HeartRateService(BLE &_ble, uint8_t hrmCounter, uint8_t location) :
- ble(_ble),
- valueBytes(hrmCounter),
- hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, valueBytes.getPointer(),
- valueBytes.getNumValueBytes(), HeartRateValueBytes::MAX_VALUE_BYTES,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
- hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, &location),
- controlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, &controlPointValue) {
- setupService();
- }
-
- /**
- * @brief Constructor with a 16-bit HRM Counter value.
- *
- * @param[in] _ble
- * Reference to the underlying BLE.
- * @param[in] hrmCounter (8-bit)
- * Initial value for the HRM counter.
- * @param[in] location
- * Sensor's location.
- */
- HeartRateService(BLE &_ble, uint16_t hrmCounter, uint8_t location) :
- ble(_ble),
- valueBytes(hrmCounter),
- hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, valueBytes.getPointer(),
- valueBytes.getNumValueBytes(), HeartRateValueBytes::MAX_VALUE_BYTES,
- GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
- hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, &location),
- controlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, &controlPointValue) {
- setupService();
- }
-
- /**
- * @brief Set a new 8-bit value for the heart rate.
- *
- * @param[in] hrmCounter
- * Heart rate in BPM.
- */
- void updateHeartRate(uint8_t hrmCounter) {
- valueBytes.updateHeartRate(hrmCounter);
- ble.gattServer().write(hrmRate.getValueHandle(), valueBytes.getPointer(), valueBytes.getNumValueBytes());
- }
-
- /**
- * Set a new 16-bit value for the heart rate.
- *
- * @param[in] hrmCounter
- * Heart rate in BPM.
- */
- void updateHeartRate(uint16_t hrmCounter) {
- valueBytes.updateHeartRate(hrmCounter);
- ble.gattServer().write(hrmRate.getValueHandle(), valueBytes.getPointer(), valueBytes.getNumValueBytes());
- }
-
- /**
- * This callback allows the heart rate service to receive updates to the
- * controlPoint characteristic.
- *
- * @param[in] params
- * Information about the characterisitc being updated.
- */
- virtual void onDataWritten(const GattWriteCallbackParams *params) {
- if (params->handle == controlPoint.getValueAttribute().getHandle()) {
- /* Do something here if the new value is 1; else you can override this method by
- * extending this class.
- * @NOTE: If you are extending this class, be sure to also call
- * ble.onDataWritten(this, &ExtendedHRService::onDataWritten); in
- * your constructor.
- */
- }
- }
-
-protected:
- void setupService(void) {
- GattCharacteristic *charTable[] = {&hrmRate, &hrmLocation, &controlPoint};
- GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
-
- ble.addService(hrmService);
- ble.onDataWritten(this, &HeartRateService::onDataWritten);
- }
-
-protected:
- /* Private internal representation for the bytes used to work with the value of the heart rate characteristic. */
- struct HeartRateValueBytes {
- static const unsigned MAX_VALUE_BYTES = 3; /* Flags, and up to two bytes for heart rate. */
- static const unsigned FLAGS_BYTE_INDEX = 0;
-
- static const unsigned VALUE_FORMAT_BITNUM = 0;
- static const uint8_t VALUE_FORMAT_FLAG = (1 << VALUE_FORMAT_BITNUM);
-
- HeartRateValueBytes(uint8_t hrmCounter) : valueBytes() {
- updateHeartRate(hrmCounter);
- }
-
- HeartRateValueBytes(uint16_t hrmCounter) : valueBytes() {
- updateHeartRate(hrmCounter);
- }
-
- void updateHeartRate(uint8_t hrmCounter) {
- valueBytes[FLAGS_BYTE_INDEX] &= ~VALUE_FORMAT_FLAG;
- valueBytes[FLAGS_BYTE_INDEX + 1] = hrmCounter;
- }
-
- void updateHeartRate(uint16_t hrmCounter) {
- valueBytes[FLAGS_BYTE_INDEX] |= VALUE_FORMAT_FLAG;
- valueBytes[FLAGS_BYTE_INDEX + 1] = (uint8_t)(hrmCounter & 0xFF);
- valueBytes[FLAGS_BYTE_INDEX + 2] = (uint8_t)(hrmCounter >> 8);
- }
-
- uint8_t *getPointer(void) {
- return valueBytes;
- }
-
- const uint8_t *getPointer(void) const {
- return valueBytes;
- }
-
- unsigned getNumValueBytes(void) const {
- return 1 + ((valueBytes[FLAGS_BYTE_INDEX] & VALUE_FORMAT_FLAG) ? sizeof(uint16_t) : sizeof(uint8_t));
- }
-
- private:
- /* First byte: 8-bit values, no extra info. Second byte: uint8_t HRM value */
- /* See https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
- uint8_t valueBytes[MAX_VALUE_BYTES];
- };
-
-protected:
- BLE &ble;
-
- HeartRateValueBytes valueBytes;
- uint8_t controlPointValue;
-
- GattCharacteristic hrmRate;
- ReadOnlyGattCharacteristic<uint8_t> hrmLocation;
- WriteOnlyGattCharacteristic<uint8_t> controlPoint;
-};
-
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2013 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __BLE_HEART_RATE_SERVICE_H__
+#define __BLE_HEART_RATE_SERVICE_H__
+
+#include "ble/BLE.h"
+
+/**
+* @class HeartRateService
+* @brief BLE Service for HeartRate. This BLE Service contains the location of the sensor, the heartrate in beats per minute. <br>
+* Service: https://developer.bluetooth.org/gatt/services/Pages/ServiceViewer.aspx?u=org.bluetooth.service.heart_rate.xml <br>
+* HRM Char: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml <br>
+* Location: https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.body_sensor_location.xml
+*/
+class HeartRateService {
+public:
+ /**
+ * @enum SensorLocation
+ * @brief Location of HeartRate sensor on body.
+ */
+ enum {
+ LOCATION_OTHER = 0, /*!< Other Location */
+ LOCATION_CHEST, /*!< Chest */
+ LOCATION_WRIST, /*!< Wrist */
+ LOCATION_FINGER, /*!< Finger */
+ LOCATION_HAND, /*!< Hand */
+ LOCATION_EAR_LOBE, /*!< Earlobe */
+ LOCATION_FOOT, /*!< Foot */
+ };
+
+public:
+ /**
+ * @brief Constructor with 8bit HRM Counter value.
+ *
+ * @param[ref] _ble
+ * Reference to the underlying BLE.
+ * @param[in] hrmCounter (8-bit)
+ * initial value for the hrm counter.
+ * @param[in] location
+ * Sensor's location.
+ */
+ HeartRateService(BLE &_ble, uint8_t hrmCounter, uint8_t location) :
+ ble(_ble),
+ valueBytes(hrmCounter),
+ hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, valueBytes.getPointer(),
+ valueBytes.getNumValueBytes(), HeartRateValueBytes::MAX_VALUE_BYTES,
+ GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+ hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, &location),
+ controlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, &controlPointValue) {
+ setupService();
+ }
+
+ /**
+ * @brief Constructor with a 16-bit HRM Counter value.
+ *
+ * @param[in] _ble
+ * Reference to the underlying BLE.
+ * @param[in] hrmCounter (8-bit)
+ * initial value for the hrm counter.
+ * @param[in] location
+ * Sensor's location.
+ */
+ HeartRateService(BLE &_ble, uint16_t hrmCounter, uint8_t location) :
+ ble(_ble),
+ valueBytes(hrmCounter),
+ hrmRate(GattCharacteristic::UUID_HEART_RATE_MEASUREMENT_CHAR, valueBytes.getPointer(),
+ valueBytes.getNumValueBytes(), HeartRateValueBytes::MAX_VALUE_BYTES,
+ GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
+ hrmLocation(GattCharacteristic::UUID_BODY_SENSOR_LOCATION_CHAR, &location),
+ controlPoint(GattCharacteristic::UUID_HEART_RATE_CONTROL_POINT_CHAR, &controlPointValue) {
+ setupService();
+ }
+
+ /**
+ * @brief Set a new 8-bit value for heart rate.
+ *
+ * @param[in] hrmCounter
+ * HeartRate in bpm.
+ */
+ void updateHeartRate(uint8_t hrmCounter) {
+ valueBytes.updateHeartRate(hrmCounter);
+ ble.gattServer().write(hrmRate.getValueHandle(), valueBytes.getPointer(), valueBytes.getNumValueBytes());
+ }
+
+ /**
+ * Set a new 16-bit value for heart rate.
+ *
+ * @param[in] hrmCounter
+ * HeartRate in bpm.
+ */
+ void updateHeartRate(uint16_t hrmCounter) {
+ valueBytes.updateHeartRate(hrmCounter);
+ ble.gattServer().write(hrmRate.getValueHandle(), valueBytes.getPointer(), valueBytes.getNumValueBytes());
+ }
+
+ /**
+ * This callback allows the HeartRateService to receive updates to the
+ * controlPoint Characteristic.
+ *
+ * @param[in] params
+ * Information about the characterisitc being updated.
+ */
+ virtual void onDataWritten(const GattWriteCallbackParams *params) {
+ if (params->handle == controlPoint.getValueAttribute().getHandle()) {
+ /* Do something here if the new value is 1; else you can override this method by
+ * extending this class.
+ * @NOTE: if you are extending this class, be sure to also call
+ * ble.onDataWritten(this, &ExtendedHRService::onDataWritten); in
+ * your constructor.
+ */
+ }
+ }
+
+protected:
+ void setupService(void) {
+ GattCharacteristic *charTable[] = {&hrmRate, &hrmLocation, &controlPoint};
+ GattService hrmService(GattService::UUID_HEART_RATE_SERVICE, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
+
+ ble.addService(hrmService);
+ ble.onDataWritten(this, &HeartRateService::onDataWritten);
+ }
+
+protected:
+ /* Private internal representation for the bytes used to work with the vaulue of the heart-rate characteristic. */
+ struct HeartRateValueBytes {
+ static const unsigned MAX_VALUE_BYTES = 3; /* FLAGS + up to two bytes for heart-rate */
+ static const unsigned FLAGS_BYTE_INDEX = 0;
+
+ static const unsigned VALUE_FORMAT_BITNUM = 0;
+ static const uint8_t VALUE_FORMAT_FLAG = (1 << VALUE_FORMAT_BITNUM);
+
+ HeartRateValueBytes(uint8_t hrmCounter) : valueBytes() {
+ updateHeartRate(hrmCounter);
+ }
+
+ HeartRateValueBytes(uint16_t hrmCounter) : valueBytes() {
+ updateHeartRate(hrmCounter);
+ }
+
+ void updateHeartRate(uint8_t hrmCounter) {
+ valueBytes[FLAGS_BYTE_INDEX] &= ~VALUE_FORMAT_FLAG;
+ valueBytes[FLAGS_BYTE_INDEX + 1] = hrmCounter;
+ }
+
+ void updateHeartRate(uint16_t hrmCounter) {
+ valueBytes[FLAGS_BYTE_INDEX] |= VALUE_FORMAT_FLAG;
+ valueBytes[FLAGS_BYTE_INDEX + 1] = (uint8_t)(hrmCounter & 0xFF);
+ valueBytes[FLAGS_BYTE_INDEX + 2] = (uint8_t)(hrmCounter >> 8);
+ }
+
+ uint8_t *getPointer(void) {
+ return valueBytes;
+ }
+
+ const uint8_t *getPointer(void) const {
+ return valueBytes;
+ }
+
+ unsigned getNumValueBytes(void) const {
+ return 1 + ((valueBytes[FLAGS_BYTE_INDEX] & VALUE_FORMAT_FLAG) ? sizeof(uint16_t) : sizeof(uint8_t));
+ }
+
+ private:
+ /* First byte = 8-bit values, no extra info, Second byte = uint8_t HRM value */
+ /* See --> https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml */
+ uint8_t valueBytes[MAX_VALUE_BYTES];
+ };
+
+protected:
+ BLE &ble;
+
+ HeartRateValueBytes valueBytes;
+ uint8_t controlPointValue;
+
+ GattCharacteristic hrmRate;
+ ReadOnlyGattCharacteristic<uint8_t> hrmLocation;
+ WriteOnlyGattCharacteristic<uint8_t> controlPoint;
+};
+
#endif /* #ifndef __BLE_HEART_RATE_SERVICE_H__*/
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