AndPair alpha 1 [Android]

package com.xerpi.andpair;

import java.util.HashMap;
import java.util.Iterator;


import android.hardware.usb.UsbConstants;
import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbEndpoint;
import android.hardware.usb.UsbInterface;
import android.hardware.usb.UsbManager;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.app.Activity;
import android.app.PendingIntent;
import android.bluetooth.BluetoothAdapter;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;


public class MainActivity extends Activity implements OnClickListener {

    private static final String ACTION_USB_PERMISSION =
            "com.xerpi.andpair.USB_PERMISSION";
    private final int VENDOR_ID   = 0x054C; //Sony Corp.
    private final int PRODUCT_ID  = 0x0268; //Sixaxis and DS3

    Button scanButton, setMACbutton, getMACbutton, getDeviceMACbutton;
    TextView textViewGetMAC;
    EditText editTextSetMAC;
    /** AndPair **/
        UsbManager usbManager;
        UsbDevice usbDevice;
        HashMap<String, UsbDevice> deviceList;
        UsbInterface usbInterface;
        UsbEndpoint endpoint;
        UsbDeviceConnection deviceConnection;
        boolean isConnected = false;

        Object mPermissionIntent;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        scanButton = (Button)findViewById(R.id.buttonScan);
        setMACbutton = (Button)findViewById(R.id.buttonSetMAC);
        getMACbutton = (Button)findViewById(R.id.buttonGetMAC);
        getDeviceMACbutton = (Button)findViewById(R.id.buttonGetDeviceMac);
        getDeviceMACbutton.setOnClickListener(this);
        scanButton.setOnClickListener(this);
        setMACbutton.setOnClickListener(this);
        getMACbutton.setOnClickListener(this);

        textViewGetMAC = (TextView)findViewById(R.id.textViewGetMAC);
        editTextSetMAC = (EditText)findViewById(R.id.editTextSetMac);

        usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);

        mPermissionIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0);
        IntentFilter filter = new IntentFilter(ACTION_USB_PERMISSION);
        registerReceiver(mUsbReceiver, filter);
    }

    public void setMAC()
    {
        if(!isConnected) return;
    }

    public void getMAC()
    {
        if(!isConnected) return;
        byte[] buf = new byte[8];
        deviceConnection.controlTransfer(
                UsbConstants.USB_DIR_IN | UsbConstants.USB_TYPE_CLASS | UsbConstants.USB_INTERFACE_SUBCLASS_BOOT,
                0x01,
                0x03f5,
                0,
                buf,
                buf.length,
                5000);

        String MAC = MACstring(buf);
        dlog("MAC: "+MAC);
        textViewGetMAC.setText(MAC);

    }

    public void setMAC(String MAC)
    {
        if(!isConnected) return;
        byte[] buf = new byte[8];
        String[] MACsplitted = MAC.split(":");
        if(MACsplitted.length != 6) return;

        for(int i = 2; i <8; i++)
        {
            Integer hex = Integer.parseInt(MACsplitted[i-2], 16);
            buf[i] = hex.byteValue();
        }
        buf[0] = 0x1; buf[1] = 0x0;

        deviceConnection.controlTransfer(
                UsbConstants.USB_DIR_OUT | UsbConstants.USB_TYPE_CLASS | UsbConstants.USB_INTERFACE_SUBCLASS_BOOT,
                0x09,
                0x03f5,
                0,
                buf,
                buf.length,
                5000);

    }

    public String MACstring(byte[] macArray)
    {
        String MAC = new String();
        for(int i = 2; i < 8; i++)
        {
            MAC += String.format("%02X", (short)(macArray[i] & 0xFF));
            if(i < 7) MAC+=":";
        }
        return MAC;
    }

    public String getDeviceMAC()
    {
        BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
        return mBluetoothAdapter.getAddress();
    }

    public void scan()
    {
        if(isConnected) return;
        dlog("Scan:");
        HashMap<String, UsbDevice> deviceList = usbManager.getDeviceList();
        Iterator<UsbDevice> deviceIterator = deviceList.values().iterator();
        while(deviceIterator.hasNext())
        {
            UsbDevice device = deviceIterator.next();
            if(isDeviceVID_PID(device, VENDOR_ID, PRODUCT_ID))
            {
                dlog("SIXAXIS FOUND!");
                usbDevice = device;
                if(!usbManager.hasPermission(usbDevice))
                {
                    dlog("Requesting permissions...");
                    usbManager.requestPermission(usbDevice, (PendingIntent) mPermissionIntent);
                }
                else
                {
                    dlog("Device already has permissions.");
                }
            }
        }

    }

    @Override
    public void onClick(View v)
    {
        switch(v.getId())
        {
        case R.id.buttonScan:
            scan();
            break;
        case R.id.buttonGetMAC:
            getMAC();
            break;
        case R.id.buttonSetMAC:
            setMAC(editTextSetMAC.getText().toString());
            break;
        case R.id.buttonGetDeviceMac:
            editTextSetMAC.setText(getDeviceMAC());
            break;
        default:
            break;
        }

    }

    public void dlog(String s)
    {
        Log.d("AndPair", s);
    }

    public boolean isDeviceVID_PID(UsbDevice device, int VID, int PID)
    {
        if(device.getVendorId() == VID && device.getProductId() == PID)
            return true;
        else
            return false;
    }


    private final BroadcastReceiver mUsbReceiver = new BroadcastReceiver()
    {
        public void onReceive(Context context, Intent intent)
        {
            String action = intent.getAction();
            if (ACTION_USB_PERMISSION.equals(action))
            {
                synchronized (this)
                {
                    UsbDevice device = (UsbDevice)intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);

                    if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false))
                    {
                        if(device != null)
                        {
                            dlog("Got permissions!");

                            usbInterface     = device.getInterface(0);
                            endpoint         = usbInterface.getEndpoint(0);
                            deviceConnection = usbManager.openDevice(device);

                            if(deviceConnection.claimInterface(usbInterface, true))
                            {
                                dlog("Interface claimed!");
                                isConnected = true;
                            }
                            else
                            {
                                dlog("Could not claim the interface.");
                            }
                        }
                    }
                    else
                    {
                        dlog("permission denied for device " + device);
                    }
                }
            }
            else if (UsbManager.ACTION_USB_DEVICE_DETACHED.equals(action))
            {
                UsbDevice device = (UsbDevice)intent.getParcelableExtra(UsbManager.EXTRA_DEVICE);
                if (device != null)
                {
                    deviceConnection.releaseInterface(usbInterface);
                    deviceConnection.close();
                    dlog("Device closed");
                }
            }
        }
    };

}