Delta / Mbed OS BLE_Secure_HeartRate_DELTA

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Fork of BLE_HeartRate_DELTA by Delta

main.cpp@2:0737743120d7, 2017-03-28 (annotated)

Committer:
silviaChen
Date:
Tue Mar 28 08:21:46 2017 +0000
Revision:
2:0737743120d7
Parent:
1:82331af3e4c9 
Add BLE bonding/pairing function

Who changed what in which revision?

UserRevisionLine numberNew contents of line
silviaChen 0:c7bcc0b36b5e 1 /* mbed Microcontroller Library
silviaChen 0:c7bcc0b36b5e 2 * Copyright (c) 2006-2015 ARM Limited
silviaChen 0:c7bcc0b36b5e 3 *
silviaChen 0:c7bcc0b36b5e 4 * Licensed under the Apache License, Version 2.0 (the "License");
silviaChen 0:c7bcc0b36b5e 5 * you may not use this file except in compliance with the License.
silviaChen 0:c7bcc0b36b5e 6 * You may obtain a copy of the License at
silviaChen 0:c7bcc0b36b5e 7 *
silviaChen 0:c7bcc0b36b5e 8 * http://www.apache.org/licenses/LICENSE-2.0
silviaChen 0:c7bcc0b36b5e 9 *
silviaChen 0:c7bcc0b36b5e 10 * Unless required by applicable law or agreed to in writing, software
silviaChen 0:c7bcc0b36b5e 11 * distributed under the License is distributed on an "AS IS" BASIS,
silviaChen 0:c7bcc0b36b5e 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
silviaChen 0:c7bcc0b36b5e 13 * See the License for the specific language governing permissions and
silviaChen 0:c7bcc0b36b5e 14 * limitations under the License.
silviaChen 0:c7bcc0b36b5e 15 */
silviaChen 0:c7bcc0b36b5e 16
silviaChen 0:c7bcc0b36b5e 17 #include "mbed.h"
silviaChen 0:c7bcc0b36b5e 18 #include "ble/BLE.h"
silviaChen 2:0737743120d7 19 #include "HeartRateSecService.h"
silviaChen 0:c7bcc0b36b5e 20 #include "ble/services/BatteryService.h"
silviaChen 0:c7bcc0b36b5e 21 #include "ble/services/DeviceInformationService.h"
silviaChen 0:c7bcc0b36b5e 22
silviaChen 2:0737743120d7 23 BLE ble;
silviaChen 0:c7bcc0b36b5e 24 DigitalOut led1(LED1);
silviaChen 2:0737743120d7 25 Serial uart(USBTX, USBRX, 115200);
silviaChen 0:c7bcc0b36b5e 26
silviaChen 2:0737743120d7 27 const static char DEVICE_NAME[] = "DELTA_HRM_SEC";
silviaChen 0:c7bcc0b36b5e 28 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE,
silviaChen 0:c7bcc0b36b5e 29 GattService::UUID_DEVICE_INFORMATION_SERVICE};
silviaChen 0:c7bcc0b36b5e 30 static volatile bool triggerSensorPolling = false;
silviaChen 2:0737743120d7 31 bool isSecuritySuccess = false;
silviaChen 0:c7bcc0b36b5e 32
silviaChen 0:c7bcc0b36b5e 33 uint8_t hrmCounter = 100; // init HRM to 100bps
silviaChen 0:c7bcc0b36b5e 34
silviaChen 2:0737743120d7 35 HeartRateSecService *hrSecService;
silviaChen 0:c7bcc0b36b5e 36 DeviceInformationService *deviceInfo;
silviaChen 0:c7bcc0b36b5e 37
silviaChen 0:c7bcc0b36b5e 38 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
silviaChen 0:c7bcc0b36b5e 39 {
silviaChen 2:0737743120d7 40 ble.gap().startAdvertising(); // restart advertising
silviaChen 0:c7bcc0b36b5e 41 }
silviaChen 0:c7bcc0b36b5e 42
silviaChen 0:c7bcc0b36b5e 43 void periodicCallback(void)
silviaChen 0:c7bcc0b36b5e 44 {
silviaChen 0:c7bcc0b36b5e 45 led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
silviaChen 0:c7bcc0b36b5e 46
silviaChen 0:c7bcc0b36b5e 47 /* Note that the periodicCallback() executes in interrupt context, so it is safer to do
silviaChen 0:c7bcc0b36b5e 48 * heavy-weight sensor polling from the main thread. */
silviaChen 0:c7bcc0b36b5e 49 triggerSensorPolling = true;
silviaChen 0:c7bcc0b36b5e 50 }
silviaChen 0:c7bcc0b36b5e 51
silviaChen 2:0737743120d7 52 void passkeyDisplayCallback(Gap::Handle_t handle, const SecurityManager::Passkey_t passkey)
silviaChen 2:0737743120d7 53 {
silviaChen 2:0737743120d7 54 uart.printf("Input passKey: ");
silviaChen 2:0737743120d7 55 for (unsigned i = 0; i < Gap::ADDR_LEN; i++) {
silviaChen 2:0737743120d7 56 uart.printf("%c ", passkey[i]);
silviaChen 2:0737743120d7 57 }
silviaChen 2:0737743120d7 58 uart.printf("\r\n");
silviaChen 2:0737743120d7 59 }
silviaChen 2:0737743120d7 60
silviaChen 2:0737743120d7 61 void securitySetupCompletedCallback(Gap::Handle_t handle, SecurityManager::SecurityCompletionStatus_t status)
silviaChen 2:0737743120d7 62 {
silviaChen 2:0737743120d7 63 if (status == SecurityManager::SEC_STATUS_SUCCESS) {
silviaChen 2:0737743120d7 64 uart.printf("Security success\r\n");
silviaChen 2:0737743120d7 65 isSecuritySuccess = true;
silviaChen 2:0737743120d7 66 } else {
silviaChen 2:0737743120d7 67 uart.printf("Security failed\r\n");
silviaChen 2:0737743120d7 68 isSecuritySuccess = false;
silviaChen 2:0737743120d7 69 ble.gap().disconnect(Gap::LOCAL_HOST_TERMINATED_CONNECTION);
silviaChen 2:0737743120d7 70 }
silviaChen 2:0737743120d7 71 }
silviaChen 2:0737743120d7 72
silviaChen 0:c7bcc0b36b5e 73 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
silviaChen 0:c7bcc0b36b5e 74 {
silviaChen 0:c7bcc0b36b5e 75 BLE &ble = params->ble;
silviaChen 0:c7bcc0b36b5e 76 ble_error_t error = params->error;
silviaChen 0:c7bcc0b36b5e 77
silviaChen 0:c7bcc0b36b5e 78 if (error != BLE_ERROR_NONE) {
silviaChen 0:c7bcc0b36b5e 79 return;
silviaChen 0:c7bcc0b36b5e 80 }
silviaChen 2:0737743120d7 81
silviaChen 2:0737743120d7 82 /* Initialize BLE security */
silviaChen 2:0737743120d7 83 bool enableBonding = true;
silviaChen 2:0737743120d7 84 bool requireMITM = true; //Need passkey
silviaChen 2:0737743120d7 85 uint8_t pKey[6] = {'0', '0', '0', '0', '0', '0'}; //set the passkey
silviaChen 2:0737743120d7 86 ble.securityManager().init(enableBonding, requireMITM, SecurityManager::IO_CAPS_DISPLAY_ONLY, pKey);
silviaChen 0:c7bcc0b36b5e 87
silviaChen 0:c7bcc0b36b5e 88 ble.gap().onDisconnection(disconnectionCallback);
silviaChen 2:0737743120d7 89 ble.securityManager().onPasskeyDisplay(passkeyDisplayCallback);
silviaChen 2:0737743120d7 90 ble.securityManager().onSecuritySetupCompleted(securitySetupCompletedCallback);
silviaChen 0:c7bcc0b36b5e 91
silviaChen 0:c7bcc0b36b5e 92 /* Setup primary service. */
silviaChen 2:0737743120d7 93 hrSecService = new HeartRateSecService(ble, hrmCounter, HeartRateSecService::LOCATION_FINGER);
silviaChen 0:c7bcc0b36b5e 94
silviaChen 0:c7bcc0b36b5e 95 /* Setup auxiliary service. */
silviaChen 0:c7bcc0b36b5e 96 deviceInfo = new DeviceInformationService(ble, "DELTA", "NQ620", "SN1", "hw-rev1", "fw-rev1", "soft-rev1");
silviaChen 0:c7bcc0b36b5e 97
silviaChen 0:c7bcc0b36b5e 98 /* Setup advertising. */
silviaChen 0:c7bcc0b36b5e 99 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
silviaChen 0:c7bcc0b36b5e 100 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
silviaChen 0:c7bcc0b36b5e 101 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::GENERIC_HEART_RATE_SENSOR);
silviaChen 0:c7bcc0b36b5e 102 ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
silviaChen 0:c7bcc0b36b5e 103 ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
silviaChen 0:c7bcc0b36b5e 104 ble.gap().setAdvertisingInterval(1000); /* 1000ms */
silviaChen 0:c7bcc0b36b5e 105 ble.gap().startAdvertising();
silviaChen 0:c7bcc0b36b5e 106 }
silviaChen 0:c7bcc0b36b5e 107
silviaChen 0:c7bcc0b36b5e 108 int main(void)
silviaChen 0:c7bcc0b36b5e 109 {
silviaChen 0:c7bcc0b36b5e 110 led1 = 1;
silviaChen 0:c7bcc0b36b5e 111 Ticker ticker;
silviaChen 0:c7bcc0b36b5e 112 ticker.attach(periodicCallback, 1); // blink LED every second
silviaChen 0:c7bcc0b36b5e 113
silviaChen 0:c7bcc0b36b5e 114 ble.init(bleInitComplete);
silviaChen 0:c7bcc0b36b5e 115
silviaChen 0:c7bcc0b36b5e 116 /* SpinWait for initialization to complete. This is necessary because the
silviaChen 0:c7bcc0b36b5e 117 * BLE object is used in the main loop below. */
silviaChen 0:c7bcc0b36b5e 118 while (ble.hasInitialized() == false) { /* spin loop */ }
silviaChen 0:c7bcc0b36b5e 119
tsungta 1:82331af3e4c9 120 ble.setTxPower(0);
tsungta 1:82331af3e4c9 121
silviaChen 0:c7bcc0b36b5e 122 // infinite loop
silviaChen 0:c7bcc0b36b5e 123 while (1) {
silviaChen 0:c7bcc0b36b5e 124 // check for trigger from periodicCallback()
silviaChen 2:0737743120d7 125 if (triggerSensorPolling && ble.getGapState().connected && isSecuritySuccess) {
silviaChen 0:c7bcc0b36b5e 126 triggerSensorPolling = false;
silviaChen 0:c7bcc0b36b5e 127
silviaChen 0:c7bcc0b36b5e 128 // Do blocking calls or whatever is necessary for sensor polling.
silviaChen 0:c7bcc0b36b5e 129 // In our case, we simply update the HRM measurement.
silviaChen 0:c7bcc0b36b5e 130 hrmCounter++;
silviaChen 0:c7bcc0b36b5e 131 if (hrmCounter == 175) { // 100 <= HRM bps <=175
silviaChen 0:c7bcc0b36b5e 132 hrmCounter = 100;
silviaChen 0:c7bcc0b36b5e 133 }
silviaChen 0:c7bcc0b36b5e 134
silviaChen 2:0737743120d7 135 hrSecService->updateHeartRate(hrmCounter);
silviaChen 0:c7bcc0b36b5e 136 } else {
silviaChen 0:c7bcc0b36b5e 137 ble.waitForEvent(); // low power wait for event
silviaChen 0:c7bcc0b36b5e 138 }
silviaChen 0:c7bcc0b36b5e 139 }
silviaChen 0:c7bcc0b36b5e 140 }