CP2130 ids and closeSPI method added

usbserial/src/main/java/com/felhr/deviceids/CP2130Ids.java

@@ -0,0 +1,32 @@
+package com.felhr.deviceids;
+
+public class CP2130Ids
+{
+    private static final ConcreteDevice[] cp2130Devices = new ConcreteDevice[]{
+            new ConcreteDevice(0x10C4, 0x87a0),
+    };
+
+    public static boolean isDeviceSupported(int vendorId, int productId)
+    {
+        for(int i=0;i<=cp2130Devices.length-1;i++)
+        {
+            if(cp2130Devices[i].vendorId == vendorId && cp2130Devices[i].productId == productId )
+            {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    private static class ConcreteDevice
+    {
+        public int vendorId;
+        public int productId;
+
+        public ConcreteDevice(int vendorId, int productId)
+        {
+            this.vendorId = vendorId;
+            this.productId = productId;
+        }
+    }
+}

usbserial/src/main/java/com/felhr/usbserial/CP2130SpiDevice.java

@@ -158,6 +158,14 @@ public class CP2130SpiDevice extends UsbSpiDevice
         return data[currentChannel] & 0x07;
     }
 
+    @Override
+    public void closeSPI()
+    {
+        killWorkingThread();
+        killWriteThread();
+        connection.releaseInterface(mInterface);
+    }
+
     private boolean openCP2130()
     {
         if(connection.claimInterface(mInterface, true))

usbserial/src/main/java/com/felhr/usbserial/UsbSpiDevice.java

@@ -3,7 +3,8 @@ package com.felhr.usbserial;
 import android.hardware.usb.UsbDevice;
 import android.hardware.usb.UsbDeviceConnection;
 import android.hardware.usb.UsbEndpoint;
-import android.hardware.usb.UsbRequest;
+
+import com.felhr.deviceids.CP2130Ids;
 
 import java.util.concurrent.atomic.AtomicBoolean;
 
@@ -32,7 +33,21 @@ public abstract class UsbSpiDevice implements UsbSpiInterface
         this.serialBuffer = new SerialBuffer(false);
     }
 
-    //TODO: Factory methods
+    public static UsbSpiDevice createUsbSerialDevice(UsbDevice device, UsbDeviceConnection connection)
+    {
+        return createUsbSerialDevice(device, connection, -1);
+    }
+
+    public static UsbSpiDevice createUsbSerialDevice(UsbDevice device, UsbDeviceConnection connection, int iface)
+    {
+        int vid = device.getVendorId();
+        int pid = device.getProductId();
+
+        if(CP2130Ids.isDeviceSupported(vid, pid))
+            return new CP2130SpiDevice(device, connection, iface);
+        else
+            return null;
+    }
 
 
     @Override
@@ -62,6 +77,9 @@ public abstract class UsbSpiDevice implements UsbSpiInterface
     @Override
     public abstract int getSelectedSlave();
 
+    @Override
+    public abstract void closeSPI();
+
     protected class WriteThread extends Thread
     {
         private UsbEndpoint outEndpoint;

usbserial/src/main/java/com/felhr/usbserial/UsbSpiInterface.java

@@ -19,6 +19,7 @@ public interface UsbSpiInterface
     void setClock(int clockDivider);
     void selectSlave(int nSlave);
     void setMISOCallback(UsbMISOCallback misoCallback);
+    void closeSPI();
 
     // Status information
     int getClockDivider();