main.cpp

00001 /*
00002 
00003 Copyright (c) 2012-2014 RedBearLab
00004 
00005 Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
00006 and associated documentation files (the "Software"), to deal in the Software without restriction, 
00007 including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
00008 and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
00009 subject to the following conditions:
00010 The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
00011 
00012 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
00013 INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR 
00014 PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE 
00015 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
00016 ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017 
00018 */
00019 
00020 /*
00021  *    The application works with the BlueJelly.js
00022  *
00023  *    http://jellyware.jp/ 
00024  *
00025  */
00026  
00027 //======================================================================
00028 //Grobal
00029 //====================================================================== 
00030 //------------------------------------------------------------
00031 //Include Header Files
00032 //------------------------------------------------------------ 
00033 #include "mbed.h"
00034 #include "ble/BLE.h"
00035 
00036 
00037 //------------------------------------------------------------
00038 //Definition
00039 //------------------------------------------------------------ 
00040 #define TXRX_BUF_LEN 20                     //max 20[byte]
00041 #define DEVICE_LOCAL_NAME "BlueJelly"     
00042 #define ADVERTISING_INTERVAL 160            //160 * 0.625[ms] = 100[ms]
00043 #define TICKER_TIME 200000                  //200000[us] = 200[ms]
00044 #define DIGITAL_OUT_PIN P0_9
00045 #define ANALOG_IN_PIN   P0_4
00046 
00047 
00048 //------------------------------------------------------------
00049 //Object generation
00050 //------------------------------------------------------------ 
00051 BLE ble;
00052 DigitalOut      LED_SET(DIGITAL_OUT_PIN);
00053 AnalogIn        ANALOG(ANALOG_IN_PIN);
00054 
00055 
00056 //------------------------------------------------------------
00057 //Service & Characteristic Setting
00058 //------------------------------------------------------------ 
00059 //Service UUID
00060 static const uint8_t base_uuid[] = { 0x71, 0x3D, 0x00, 0x00, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E } ;
00061 
00062 //Characteristic UUID
00063 static const uint8_t tx_uuid[]   = { 0x71, 0x3D, 0x00, 0x03, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E } ;
00064 static const uint8_t rx_uuid[]   = { 0x71, 0x3D, 0x00, 0x02, 0x50, 0x3E, 0x4C, 0x75, 0xBA, 0x94, 0x31, 0x48, 0xF1, 0x8D, 0x94, 0x1E } ;
00065 
00066 //Characteristic Value
00067 uint8_t txPayload[TXRX_BUF_LEN] = {0,};
00068 uint8_t rxPayload[TXRX_BUF_LEN] = {0,};
00069 
00070 //Characteristic Property Setting etc
00071 GattCharacteristic  txCharacteristic (tx_uuid, txPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
00072 GattCharacteristic  rxCharacteristic (rx_uuid, rxPayload, 1, TXRX_BUF_LEN, GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY| GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ);
00073 GattCharacteristic *myChars[] = {&txCharacteristic, &rxCharacteristic};
00074 
00075 //Service Setting
00076 GattService         myService(base_uuid, myChars, sizeof(myChars) / sizeof(GattCharacteristic *));
00077 
00078 
00079 //======================================================================
00080 //onDisconnection
00081 //======================================================================
00082 void disconnectionCallback(const Gap::DisconnectionCallbackParams_t *params)
00083 {
00084     ble.startAdvertising();
00085 }
00086 
00087 
00088 //======================================================================
00089 //onDataWritten
00090 //======================================================================
00091 void WrittenHandler(const GattWriteCallbackParams *Handler)
00092 {   
00093     uint8_t buf[TXRX_BUF_LEN];
00094     uint16_t bytesRead;
00095     
00096     if (Handler->handle == txCharacteristic.getValueAttribute().getHandle()) 
00097     {
00098         ble.readCharacteristicValue(txCharacteristic.getValueAttribute().getHandle(), buf, &bytesRead);
00099         memset(txPayload, 0, TXRX_BUF_LEN);
00100         memcpy(txPayload, buf, TXRX_BUF_LEN); 
00101        
00102         if(buf[0] == 1)
00103             LED_SET = 1;
00104         else
00105             LED_SET = 0;
00106     }
00107 }
00108 
00109 
00110 //======================================================================
00111 //onTimeout
00112 //======================================================================
00113 void m_status_check_handle(void)
00114 {   
00115     uint8_t buf[2];
00116 
00117     //Read Analog port
00118     float s = ANALOG;
00119     uint16_t value = s*1024; 
00120     buf[0] = (value >> 8);
00121     buf[1] = value;
00122     
00123     //Send out
00124     ble.updateCharacteristicValue(rxCharacteristic.getValueAttribute().getHandle(), buf, 2); 
00125 }
00126 
00127 
00128 //======================================================================
00129 //convert reverse UUID
00130 //======================================================================
00131 void reverseUUID(const uint8_t* src, uint8_t* dst)
00132 {
00133     int i;
00134     
00135     for(i=0;i<16;i++)
00136         dst[i] = src[15 - i];
00137 }
00138 
00139 
00140 //======================================================================
00141 //main
00142 //======================================================================
00143 int main(void)
00144 {
00145     uint8_t base_uuid_rev[16];
00146 
00147     //Timer Setting [us]
00148     Ticker ticker;
00149     ticker.attach_us(m_status_check_handle, TICKER_TIME);
00150     
00151     //BLE init
00152     ble.init();
00153     
00154     //EventListener
00155     ble.onDisconnection(disconnectionCallback);
00156     ble.onDataWritten(WrittenHandler);  
00157 
00158     //------------------------------------------------------------
00159     //setup advertising 
00160     //------------------------------------------------------------
00161     //Classic BT not support
00162     ble.accumulateAdvertisingPayload(GapAdvertisingData::BREDR_NOT_SUPPORTED);
00163     
00164     //Connectable to Central
00165     ble.setAdvertisingType(GapAdvertisingParams::ADV_CONNECTABLE_UNDIRECTED);
00166     
00167     //Local Name
00168     ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LOCAL_NAME,
00169                                     (const uint8_t *)DEVICE_LOCAL_NAME, sizeof(DEVICE_LOCAL_NAME) - 1);
00170     
00171     //GAP AdvertisingData                                
00172     reverseUUID(base_uuid, base_uuid_rev);  
00173     ble.accumulateAdvertisingPayload(GapAdvertisingData::COMPLETE_LIST_128BIT_SERVICE_IDS,
00174                                     (uint8_t *)base_uuid_rev, sizeof(base_uuid));
00175                                     
00176     //Advertising Interval 
00177     ble.setAdvertisingInterval(ADVERTISING_INTERVAL);
00178 
00179     //Add Service
00180     ble.addService(myService);
00181     
00182     //Start Advertising
00183     ble.startAdvertising(); 
00184     
00185     //------------------------------------------------------------
00186     //Loop
00187     //------------------------------------------------------------
00188     while(1)
00189     {
00190         ble.waitForEvent(); 
00191     }
00192 }