Technicus Spiriticus / Mbed 2 deprecated BLE_IoT_on_Wheels_Design_Challenge

We are making a bluetooth application for a vehicle.

Dependencies:   BLE_API X_NUCLEO_IDB0XA1 mbed

Fork of BLE_HeartRate_IDB0XA1 by ST

bike_service.h@30:243e095a69d9, 2017-07-19 (annotated)

Committer:
bobbaddeley
Date:
Wed Jul 19 14:38:04 2017 +0000
Revision:
30:243e095a69d9
Parent:
29:e7d4922a4620 
Getting alarms to work

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bobbaddeley 23:a31b178e2263 1 /* Bike Service
bobbaddeley 23:a31b178e2263 2 */
bobbaddeley 23:a31b178e2263 3
bobbaddeley 23:a31b178e2263 4 #ifndef __BLE_BIKE_SERVICE_H__
bobbaddeley 23:a31b178e2263 5 #define __BLE_BIKE_SERVICE_H__
bobbaddeley 23:a31b178e2263 6
bobbaddeley 23:a31b178e2263 7 #include "ble/BLE.h"
bobbaddeley 23:a31b178e2263 8
bobbaddeley 23:a31b178e2263 9 /**
bobbaddeley 23:a31b178e2263 10 * @class BikeService
bobbaddeley 23:a31b178e2263 11 * @brief BLE Service for Heck Bike.
bobbaddeley 23:a31b178e2263 12 */
bobbaddeley 23:a31b178e2263 13 class BikeService {
bobbaddeley 23:a31b178e2263 14 public:
bobbaddeley 23:a31b178e2263 15 /**
bobbaddeley 23:a31b178e2263 16 * @brief Constructor with 8-bit HRM Counter value.
bobbaddeley 23:a31b178e2263 17 *
bobbaddeley 23:a31b178e2263 18 * @param[ref] _ble
bobbaddeley 23:a31b178e2263 19 * Reference to the underlying BLE.
bobbaddeley 24:d352571b1c1f 20 */
bobbaddeley 23:a31b178e2263 21 BikeService(BLE &_ble) :
bobbaddeley 23:a31b178e2263 22 ble(_ble),
bobbaddeley 24:d352571b1c1f 23 inputBytes(0),
bobbaddeley 24:d352571b1c1f 24 outputBytes(0),
bobbaddeley 24:d352571b1c1f 25 timestampBytes(),
bobbaddeley 24:d352571b1c1f 26 alarmBytes(0),
bobbaddeley 30:243e095a69d9 27 input_characteristic(0x8EC6, inputBytes.getPointer(),
bobbaddeley 24:d352571b1c1f 28 inputBytes.getNumValueBytes(), inputBytes.getNumValueBytes(),
bobbaddeley 23:a31b178e2263 29 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
bobbaddeley 30:243e095a69d9 30 output_characteristic(0x8EC7, outputBytes.getPointer(),
bobbaddeley 24:d352571b1c1f 31 outputBytes.getNumValueBytes(), outputBytes.getNumValueBytes(),
bobbaddeley 24:d352571b1c1f 32 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
bobbaddeley 30:243e095a69d9 33 timestamp_characteristic(0x8EC8, timestampBytes.getPointer(),
bobbaddeley 25:cb54da929d9a 34 timestampBytes.getNumValueBytes(), timestampBytes.getNumValueBytes(),
bobbaddeley 25:cb54da929d9a 35 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY),
bobbaddeley 30:243e095a69d9 36 log_characteristic(0x8EC9,0),
bobbaddeley 30:243e095a69d9 37 alarmcode_characteristic(0x8ECA,alarmBytes.getPointer(),
bobbaddeley 24:d352571b1c1f 38 alarmBytes.getNumValueBytes(), alarmBytes.getNumValueBytes(),
bobbaddeley 25:cb54da929d9a 39 GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE){
bobbaddeley 23:a31b178e2263 40 setupService();
bobbaddeley 23:a31b178e2263 41 }
bobbaddeley 24:d352571b1c1f 42
bobbaddeley 23:a31b178e2263 43 /**
bobbaddeley 24:d352571b1c1f 44 * @brief Set the inputs.
bobbaddeley 23:a31b178e2263 45 *
bobbaddeley 24:d352571b1c1f 46 * @param[in] value
bobbaddeley 24:d352571b1c1f 47 * The inputs, with one bit for each input.
bobbaddeley 23:a31b178e2263 48 */
bobbaddeley 24:d352571b1c1f 49 void updateInputs(uint8_t value) {
bobbaddeley 24:d352571b1c1f 50 inputBytes.updateValue(value);
bobbaddeley 30:243e095a69d9 51 ble.gattServer().write(input_characteristic.getValueHandle(), inputBytes.getPointer(), inputBytes.getNumValueBytes());
bobbaddeley 23:a31b178e2263 52 }
bobbaddeley 24:d352571b1c1f 53
bobbaddeley 23:a31b178e2263 54 /**
bobbaddeley 24:d352571b1c1f 55 * @brief Set the outputs.
bobbaddeley 23:a31b178e2263 56 *
bobbaddeley 24:d352571b1c1f 57 * @param[in] value
bobbaddeley 24:d352571b1c1f 58 * The outputs, with one bit for each output.
bobbaddeley 23:a31b178e2263 59 */
bobbaddeley 24:d352571b1c1f 60 void updateOutputs(uint8_t value) {
bobbaddeley 24:d352571b1c1f 61 outputBytes.updateValue(value);
bobbaddeley 30:243e095a69d9 62 ble.gattServer().write(output_characteristic.getValueHandle(), outputBytes.getPointer(), 1);
bobbaddeley 24:d352571b1c1f 63 }
bobbaddeley 24:d352571b1c1f 64
bobbaddeley 24:d352571b1c1f 65 /**
bobbaddeley 24:d352571b1c1f 66 * @brief Set the alarm code.
bobbaddeley 24:d352571b1c1f 67 *
bobbaddeley 24:d352571b1c1f 68 * @param[in] value
bobbaddeley 24:d352571b1c1f 69 * The alarm code, with one byte for each output.
bobbaddeley 24:d352571b1c1f 70 */
bobbaddeley 24:d352571b1c1f 71 void updateAlarmCode(uint8_t value) {
bobbaddeley 24:d352571b1c1f 72 alarmBytes.updateAlarm(value);
bobbaddeley 30:243e095a69d9 73 ble.gattServer().write(alarmcode_characteristic.getValueHandle(), alarmBytes.getPointer(), 1);
bobbaddeley 23:a31b178e2263 74 }
bobbaddeley 25:cb54da929d9a 75
bobbaddeley 25:cb54da929d9a 76 void updateTimestamp() {
bobbaddeley 30:243e095a69d9 77 ble.gattServer().write(timestamp_characteristic.getValueHandle(), timestampBytes.getPointer(), 1);
bobbaddeley 25:cb54da929d9a 78 }
bobbaddeley 23:a31b178e2263 79
bobbaddeley 23:a31b178e2263 80 /**
bobbaddeley 23:a31b178e2263 81 * This callback allows the heart rate service to receive updates to the
bobbaddeley 23:a31b178e2263 82 * controlPoint characteristic.
bobbaddeley 23:a31b178e2263 83 *
bobbaddeley 23:a31b178e2263 84 * @param[in] params
bobbaddeley 23:a31b178e2263 85 * Information about the characterisitc being updated.
bobbaddeley 23:a31b178e2263 86 */
bobbaddeley 23:a31b178e2263 87 virtual void onDataWritten(const GattWriteCallbackParams *params) {
bobbaddeley 30:243e095a69d9 88 if (params->handle == output_characteristic.getValueAttribute().getHandle()) {
bobbaddeley 24:d352571b1c1f 89 updateOutputs(*(params->data));
bobbaddeley 24:d352571b1c1f 90 }
bobbaddeley 30:243e095a69d9 91 else if (params->handle == alarmcode_characteristic.getValueAttribute().getHandle()) {
bobbaddeley 24:d352571b1c1f 92 updateAlarmCode(*(params->data));
bobbaddeley 23:a31b178e2263 93 }
bobbaddeley 23:a31b178e2263 94 }
bobbaddeley 23:a31b178e2263 95
bobbaddeley 23:a31b178e2263 96 protected:
bobbaddeley 23:a31b178e2263 97 void setupService(void) {
bobbaddeley 30:243e095a69d9 98 GattCharacteristic *charTable[] = {&input_characteristic, &output_characteristic, &timestamp_characteristic, &log_characteristic, &alarmcode_characteristic};
bobbaddeley 23:a31b178e2263 99 GattService bikeService(0x8EC5, charTable, sizeof(charTable) / sizeof(GattCharacteristic *));
bobbaddeley 23:a31b178e2263 100
bobbaddeley 23:a31b178e2263 101 ble.addService(bikeService);
bobbaddeley 23:a31b178e2263 102 ble.onDataWritten(this, &BikeService::onDataWritten);
bobbaddeley 23:a31b178e2263 103 }
bobbaddeley 23:a31b178e2263 104
bobbaddeley 23:a31b178e2263 105 protected:
bobbaddeley 24:d352571b1c1f 106 /* Private internal representation for the bytes used to work with the value of the input and output characteristic. */
bobbaddeley 24:d352571b1c1f 107 struct ValueBytes {
bobbaddeley 23:a31b178e2263 108
bobbaddeley 24:d352571b1c1f 109 ValueBytes(uint8_t value) : valueBytes() {
bobbaddeley 24:d352571b1c1f 110 updateValue(value);
bobbaddeley 23:a31b178e2263 111 }
bobbaddeley 23:a31b178e2263 112
bobbaddeley 24:d352571b1c1f 113 void updateValue(uint8_t value) {
bobbaddeley 24:d352571b1c1f 114 valueBytes[0] = value;
bobbaddeley 23:a31b178e2263 115 }
bobbaddeley 24:d352571b1c1f 116
bobbaddeley 23:a31b178e2263 117 uint8_t *getPointer(void) {
bobbaddeley 23:a31b178e2263 118 return valueBytes;
bobbaddeley 23:a31b178e2263 119 }
bobbaddeley 30:243e095a69d9 120
bobbaddeley 30:243e095a69d9 121 uint8_t getValue(){
bobbaddeley 30:243e095a69d9 122 return valueBytes[0];
bobbaddeley 30:243e095a69d9 123 }
bobbaddeley 23:a31b178e2263 124
bobbaddeley 23:a31b178e2263 125 const uint8_t *getPointer(void) const {
bobbaddeley 23:a31b178e2263 126 return valueBytes;
bobbaddeley 23:a31b178e2263 127 }
bobbaddeley 23:a31b178e2263 128
bobbaddeley 23:a31b178e2263 129 unsigned getNumValueBytes(void) const {
bobbaddeley 24:d352571b1c1f 130 return 1;
bobbaddeley 24:d352571b1c1f 131 }
bobbaddeley 24:d352571b1c1f 132
bobbaddeley 24:d352571b1c1f 133 private:
bobbaddeley 24:d352571b1c1f 134 uint8_t valueBytes[1];
bobbaddeley 24:d352571b1c1f 135 };
bobbaddeley 24:d352571b1c1f 136
bobbaddeley 24:d352571b1c1f 137 protected:
bobbaddeley 24:d352571b1c1f 138 /* Private internal representation for the bytes used to work with the value of the input and output characteristic. */
bobbaddeley 24:d352571b1c1f 139 struct TimestampBytes {
bobbaddeley 24:d352571b1c1f 140
bobbaddeley 24:d352571b1c1f 141 TimestampBytes(void): timestampBytes(){
bobbaddeley 24:d352571b1c1f 142 updateTimestamp(time(NULL));
bobbaddeley 24:d352571b1c1f 143 }
bobbaddeley 24:d352571b1c1f 144
bobbaddeley 24:d352571b1c1f 145 TimestampBytes(time_t value) : timestampBytes() {
bobbaddeley 24:d352571b1c1f 146 updateTimestamp(value);
bobbaddeley 24:d352571b1c1f 147 }
bobbaddeley 24:d352571b1c1f 148
bobbaddeley 24:d352571b1c1f 149 void updateTimestamp(time_t value) {
bobbaddeley 24:d352571b1c1f 150 timestampBytes = value;
bobbaddeley 24:d352571b1c1f 151 }
bobbaddeley 24:d352571b1c1f 152
bobbaddeley 24:d352571b1c1f 153 uint8_t *getPointer(void) {
bobbaddeley 24:d352571b1c1f 154 return NULL;//&timestampBytes;//TODO MAKE THIS WORK
bobbaddeley 24:d352571b1c1f 155 }
bobbaddeley 24:d352571b1c1f 156
bobbaddeley 24:d352571b1c1f 157 const uint8_t *getPointer(void) const {
bobbaddeley 24:d352571b1c1f 158 return NULL;//&timestampBytes;//TODO MAKE THIS WORK
bobbaddeley 24:d352571b1c1f 159 }
bobbaddeley 24:d352571b1c1f 160
bobbaddeley 24:d352571b1c1f 161 unsigned getNumValueBytes(void) const {
bobbaddeley 24:d352571b1c1f 162 return sizeof(timestampBytes);
bobbaddeley 23:a31b178e2263 163 }
bobbaddeley 23:a31b178e2263 164
bobbaddeley 23:a31b178e2263 165 private:
bobbaddeley 24:d352571b1c1f 166 time_t timestampBytes;
bobbaddeley 23:a31b178e2263 167 };
bobbaddeley 24:d352571b1c1f 168
bobbaddeley 24:d352571b1c1f 169 protected:
bobbaddeley 24:d352571b1c1f 170 /* Private internal representation for the bytes used to work with the value of the input and output characteristic. */
bobbaddeley 24:d352571b1c1f 171 struct AlarmBytes {
bobbaddeley 23:a31b178e2263 172
bobbaddeley 24:d352571b1c1f 173 AlarmBytes(void): alarmBytes(){
bobbaddeley 24:d352571b1c1f 174 //fill this in with the default alarm code
bobbaddeley 24:d352571b1c1f 175 }
bobbaddeley 24:d352571b1c1f 176
bobbaddeley 24:d352571b1c1f 177 AlarmBytes(uint8_t value) : alarmBytes() {
bobbaddeley 24:d352571b1c1f 178 updateAlarm(value);
bobbaddeley 24:d352571b1c1f 179 }
bobbaddeley 24:d352571b1c1f 180
bobbaddeley 24:d352571b1c1f 181 void updateAlarm(uint8_t value) {
bobbaddeley 24:d352571b1c1f 182 alarmBytes[0] = value;
bobbaddeley 24:d352571b1c1f 183 }
bobbaddeley 24:d352571b1c1f 184
bobbaddeley 24:d352571b1c1f 185 uint8_t *getPointer(void) {
bobbaddeley 24:d352571b1c1f 186 return alarmBytes;
bobbaddeley 24:d352571b1c1f 187 }
bobbaddeley 24:d352571b1c1f 188
bobbaddeley 24:d352571b1c1f 189 const uint8_t *getPointer(void) const {
bobbaddeley 24:d352571b1c1f 190 return alarmBytes;
bobbaddeley 24:d352571b1c1f 191 }
bobbaddeley 24:d352571b1c1f 192
bobbaddeley 24:d352571b1c1f 193 unsigned getNumValueBytes(void) const {
bobbaddeley 24:d352571b1c1f 194 return 5;
bobbaddeley 24:d352571b1c1f 195 }
bobbaddeley 24:d352571b1c1f 196
bobbaddeley 24:d352571b1c1f 197 private:
bobbaddeley 24:d352571b1c1f 198 uint8_t alarmBytes[5];
bobbaddeley 24:d352571b1c1f 199 };
bobbaddeley 24:d352571b1c1f 200
bobbaddeley 23:a31b178e2263 201 protected:
bobbaddeley 23:a31b178e2263 202 BLE &ble;
bobbaddeley 23:a31b178e2263 203
Technicus 29:e7d4922a4620 204 ValueBytes inputBytes;
Technicus 29:e7d4922a4620 205 ValueBytes outputBytes;
Technicus 29:e7d4922a4620 206 TimestampBytes timestampBytes;
Technicus 29:e7d4922a4620 207 AlarmBytes alarmBytes;
bobbaddeley 23:a31b178e2263 208
bobbaddeley 30:243e095a69d9 209 GattCharacteristic input_characteristic;
bobbaddeley 30:243e095a69d9 210 GattCharacteristic output_characteristic;
bobbaddeley 30:243e095a69d9 211 GattCharacteristic timestamp_characteristic;
bobbaddeley 30:243e095a69d9 212 GattCharacteristic log_characteristic;
bobbaddeley 30:243e095a69d9 213 GattCharacteristic alarmcode_characteristic;
bobbaddeley 23:a31b178e2263 214 };
bobbaddeley 23:a31b178e2263 215
bobbaddeley 23:a31b178e2263 216 #endif /* #ifndef __BLE_BIKE_SERVICE_H__*/