main.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2014 ARM Limited
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *     http://www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00017 #include <events/mbed_events.h>
00018 #include <mbed.h>
00019 #include "ble/BLE.h"
00020 #include "ble/Gap.h"
00021 #include "ble/services/BatteryService.h"
00022 #include "ble/services/HeartRateService.h"
00023 
00024 DigitalOut led1(LED1, 1);
00025 
00026 const static char     DEVICE_NAME[] = "ProVaida";
00027 static const uint16_t uuid16_list[] = {GattService::UUID_HEART_RATE_SERVICE};
00028 //static const uint16_t uuid16_list[] = {GattService::UUID_BATTERY_SERVICE};
00029 
00030 uint8_t hrmCounter = 100;
00031 static HeartRateService* hrService;
00032 
00033 static EventQueue eventQueue(/* event count */ 16 * EVENTS_EVENT_SIZE);
00034 
00035 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
00036 {
00037     BLE::Instance().gap().startAdvertising();
00038 }
00039 
00040 void updateSensorValue() {
00041     hrmCounter++;
00042     if (hrmCounter > 175) {
00043         hrmCounter = 100;
00044     }
00045     hrService->updateHeartRate(hrmCounter);
00046     //batteryServicePtr->updateBatteryLevel(batteryLevel);
00047 }
00048 
00049 void blinkCallback(void)
00050 {
00051     led1 = !led1; /* Do blinky on LED1 while we're waiting for BLE events */
00052 
00053     BLE &ble = BLE::Instance();
00054     if (ble.gap().getState().connected) {
00055         eventQueue.call(updateSensorValue);
00056     }
00057 }
00058 
00059 /**
00060  * This function is called when the ble initialization process has failed
00061  */
00062 void onBleInitError(BLE &ble, ble_error_t error)
00063 {
00064     /* Initialization error handling should go here */
00065 }
00066 
00067 void printMacAddress()
00068 {
00069     /* Print out device MAC address to the console*/
00070     Gap::AddressType_t addr_type;
00071     Gap::Address_t address;
00072     BLE::Instance().gap().getAddress(&addr_type, address);
00073     printf("DEVICE MAC ADDRESS: ");
00074     for (int i = 5; i >= 1; i--){
00075         printf("%02x:", address[i]);
00076     }
00077     printf("%02x\r\n", address[0]);
00078 }
00079 
00080 /**
00081  * Callback triggered when the ble initialization process has finished
00082  */
00083 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
00084 {
00085     BLE&        ble   = params->ble;
00086     ble_error_t error = params->error;
00087 
00088     if (error != BLE_ERROR_NONE) {
00089         /* In case of error, forward the error handling to onBleInitError */
00090         onBleInitError(ble, error);
00091         return;
00092     }
00093 
00094     /* Ensure that it is the default instance of BLE */
00095     if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
00096         return;
00097     }
00098 
00099     ble.gap().onDisconnection(disconnectionCallback);
00100 
00101     /* Setup primary service */
00102     hrService = new HeartRateService(ble, hrmCounter, HeartRateService::LOCATION_FINGER);
00103 
00104     /* Setup advertising */
00105     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
00106     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *) uuid16_list, sizeof(uuid16_list));
00107     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *) DEVICE_NAME, sizeof(DEVICE_NAME));
00108     ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
00109     ble.gap().setAdvertisingInterval(1000); /* 1000ms */
00110     ble.gap().startAdvertising();
00111 
00112     printMacAddress();
00113 }
00114 
00115 void scheduleBleEventsProcessing(BLE::OnEventsToProcessCallbackContext* context) {
00116     BLE &ble = BLE::Instance();
00117     eventQueue.call(Callback<void()>(&ble, &BLE::processEvents));
00118 }
00119 
00120 int main()
00121 {
00122     eventQueue.call_every(500, blinkCallback);
00123 
00124     BLE &ble = BLE::Instance();
00125     ble.onEventsToProcess(scheduleBleEventsProcessing);
00126     ble.init(bleInitComplete);
00127 
00128     eventQueue.dispatch_forever();
00129 
00130     return 0;
00131 }