Heart Rate Monitor with security API for Delta BLE platform
Fork of BLE_HeartRate_DELTA by
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?
User | Revision | Line number | New contents of line |
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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 | } |