main.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2013 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 "mbed.h"
00018 #include "ble/BLE.h"
00019 #include "LEDService.h"
00020 
00021 
00022 DigitalOut alivenessLED(LED1, 0);
00023 DigitalOut actuatedLED(LED2, 0);
00024 Serial pc(USBTX, USBRX);
00025 
00026 const static char     DEVICE_NAME[] = "LEDWTFFTW";
00027 static const uint16_t uuid16_list[] = {LEDService::LED_SERVICE_UUID};
00028 const static char AdvData[]="Hello World!";
00029 LEDService *ledServicePtr;
00030 
00031 Ticker ticker;
00032 
00033 void timeoutCallback(const Gap::TimeoutSource_t source){
00034     BLE::Instance().gap().stopAdvertising();
00035     pc.printf("got a timeout\r\n");
00036     BLE::Instance().gap().startAdvertising();
00037 }
00038     
00039 
00040 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
00041 {
00042     pc.printf("disconnected\r\n");
00043     BLE::Instance().gap().startAdvertising();
00044     uint8_t deviceName[30] = {0};
00045     unsigned lengthP = 0;
00046     BLE::Instance().gap().getDeviceName(deviceName, &lengthP);
00047     pc.printf("new device name is %s", deviceName);
00048 
00049 }
00050 
00051 void connectionCallback(const Gap::ConnectionCallbackParams_t *params){
00052     
00053     pc.printf("connected\r\n");
00054     
00055 }
00056 void periodicCallback(void)
00057 {
00058 //    pc.printf("got here\r\n");
00059     alivenessLED = !alivenessLED; /* Do blinky on LED1 to indicate system aliveness. */
00060 }
00061 
00062 /**
00063  * This callback allows the LEDService to receive updates to the ledState Characteristic.
00064  *
00065  * @param[in] params
00066  *     Information about the characterisitc being updated.
00067  */
00068 void onDataWrittenCallback(const GattWriteCallbackParams *params) {
00069     if ((params->handle == ledServicePtr->getValueHandle()) && (params->len == 1)) {
00070         actuatedLED = *(params->data);
00071     }
00072 }
00073 
00074  
00075 /**
00076  * This function is called when the ble initialization process has failed
00077  */
00078 void onBleInitError(BLE &ble, ble_error_t error)
00079 {
00080     /* Initialization error handling should go here */
00081 }
00082 
00083 /**
00084  * Callback triggered when the ble initialization process has finished
00085  */
00086 void bleInitComplete(BLE::InitializationCompleteCallbackContext *params)
00087 {
00088     BLE&        ble   = params->ble;
00089     ble_error_t error = params->error;
00090 
00091     if (error != BLE_ERROR_NONE) {
00092         /* In case of error, forward the error handling to onBleInitError */
00093         onBleInitError(ble, error);
00094         return;
00095     }
00096 
00097     /* Ensure that it is the default instance of BLE */
00098     if(ble.getInstanceID() != BLE::DEFAULT_INSTANCE) {
00099         return;
00100     }
00101  
00102     ble.gap().onDisconnection(disconnectionCallback);
00103     ble.gattServer().onDataWritten(onDataWrittenCallback);
00104     ble.gap().onTimeout(timeoutCallback);
00105 
00106     bool initialValueForLEDCharacteristic = false;
00107     ledServicePtr = new LEDService(ble, initialValueForLEDCharacteristic);
00108 
00109     /* setup advertising */
00110     ble.gap().setDeviceName((uint8_t*)DEVICE_NAME);
00111     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED | GapAdvertisingData::LE_GENERAL_DISCOVERABLE);
00112     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_16BIT_SERVICE_IDS, (uint8_t *)uuid16_list, sizeof(uuid16_list));
00113     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME, (uint8_t *)DEVICE_NAME, sizeof(DEVICE_NAME));
00114     ble.gap().accumulateAdvertisingPayload(GapAdvertisingData::MANUFACTURER_SPECIFIC_DATA, (uint8_t *)AdvData, sizeof(AdvData));
00115     ble.gap().setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
00116     ble.gap().setAdvertisingInterval(60000); /* you shall not pass */
00117     
00118     ble.gap().setAdvertisingTimeout(900);
00119     ble.gap().startAdvertising();
00120 }
00121 
00122 int main(void)
00123 {
00124     ticker.attach(periodicCallback, 1); /* Blink LED every second */
00125 
00126     BLE &ble = BLE::Instance();
00127     ble.init(bleInitComplete);
00128 
00129     pc .baud(19200);
00130     /* SpinWait for initialization to complete. This is necessary because the
00131      * BLE object is used in the main loop below. */
00132     while (ble.hasInitialized()  == false) { /* spin loop */ }
00133 
00134     while (true) {
00135 //        pc.printf("got here\r\n");
00136         ble.waitForEvent();
00137     }
00138 }