List of usage examples for android.hardware.usb UsbDeviceConnection controlTransfer
public int controlTransfer(int requestType, int request, int value, int index, byte[] buffer, int length, int timeout)
From source file:com.googlecode.android_scripting.facade.USBHostSerialFacade.java
/** * openDevice: open the USB device {{{1//from ww w .j ava 2 s . c om */ private void openDevice(UsbDevice device) { switch (device.getDeviceClass()) { case UsbConstants.USB_CLASS_PER_INTERFACE: // / 78K Trg-USB Serial Log.d("USB openDevice, device => USB_CLASS_PER_INTERFACE"); break; case UsbConstants.USB_CLASS_COMM: // / PIC24 USB CDC Log.d("USB openDevice, device => USB_CLASS_COMM"); break; default: Log.d("USB openDevice, device is not serial..."); return; } UsbSerialConnection conn; try { conn = getConnection(device); } catch (IOException e) { Log.d("USB openDevice, can't get from connections 1"); return; } if (conn == null) { Log.d("USB openDevice, can't get from connections 2"); return; } Log.d("USB openDevice, try to open..."); UsbDeviceConnection connection = mUsbManager.openDevice(device); if (connection == null) { Log.d("connection failed at openDevice..."); // conn.close(); return; } int i, j; Log.d("USB open SUCCESS"); if (conn.mConnection != null) { Log.i("already connected? => stop thread"); conn.stop(); } conn.mConnection = connection; if (options.contains("trg78k")) { Log.d("USB Host Serial: reset the device (trg78k)"); // conn.mConnection.controlTransfer(0x21, 0x22, 0x00, 0, null, 0, 0); byte[] data = { (byte) 0x03, (byte) 0x01 }; conn.mConnection.controlTransfer(0x40, 0x00, 0x00, 0, null, 0, 0); conn.mConnection.controlTransfer(0x40, 0x0b, 0x00, 0, data, 2, 300); } for (i = 0; i < device.getInterfaceCount(); i++) { UsbInterface ui = device.getInterface(i); for (j = 0; j < ui.getEndpointCount(); j++) { Log.d(String.format("EndPoint loop...(%d, %d)", i, j)); UsbEndpoint endPoint = ui.getEndpoint(j); switch (endPoint.getType()) { case UsbConstants.USB_ENDPOINT_XFER_BULK: if (endPoint.getDirection() == UsbConstants.USB_DIR_IN) { conn.mInterfaceIn = ui; conn.mEndpointIn = endPoint; Log.d("USB mEndpointIn initialized!"); } else { conn.mInterfaceOut = ui; conn.mEndpointOut = endPoint; Log.d("USB mEndpointOut initialized!"); } break; case UsbConstants.USB_ENDPOINT_XFER_CONTROL: break; case UsbConstants.USB_ENDPOINT_XFER_INT: conn.mEndpointIntr = endPoint; Log.d("USB mEndpointIntr initialized!"); break; case UsbConstants.USB_ENDPOINT_XFER_ISOC: break; } } } if (options.contains("pl2303")) { Log.d("USB Host Serial: setup device (pl2303)"); int ret; byte[] data = new byte[10]; final byte rdReq = 0x01; final byte rdReqType = (byte) 0xC0; final byte wrReq = 0x01; final byte wrReqType = 0x40; final byte glReq = 0x21; final byte glReqType = (byte) 0xA1; final byte slReq = 0x20; final byte slReqType = (byte) 0x21; final byte bkReq = 0x23; final byte bkReqType = 0x21; int pl2303type = 1; UsbInterface ui = device.getInterface(0); connection.claimInterface(ui, true); /* * try { /// this cause device close by native_claiminterface. Thread.sleep(1000); } catch * (InterruptedException e) { Log.d("USB Host Serial: failed to sleep(1000)"); } */ // / after API Level 13: if (connection.getRawDescriptors()[7] == 64) { // pl2303type = 1; // } connection.controlTransfer(rdReqType, rdReq, 0x8484, 0, data, 1, 100); connection.controlTransfer(wrReqType, wrReq, 0x0404, 0, null, 0, 100); connection.controlTransfer(rdReqType, rdReq, 0x8484, 0, data, 1, 100); connection.controlTransfer(rdReqType, rdReq, 0x8383, 0, data, 1, 100); connection.controlTransfer(rdReqType, rdReq, 0x8484, 0, data, 1, 100); connection.controlTransfer(wrReqType, wrReq, 0x0404, 1, null, 0, 100); connection.controlTransfer(rdReqType, rdReq, 0x8484, 0, data, 1, 100); connection.controlTransfer(rdReqType, rdReq, 0x8383, 0, data, 1, 100); connection.controlTransfer(wrReqType, wrReq, 0x0000, 1, null, 0, 100); connection.controlTransfer(wrReqType, wrReq, 0x0001, 0, null, 0, 100); // **type HX** // device class != 2 // packet size == 64 if (pl2303type == 1) { connection.controlTransfer(wrReqType, wrReq, 0x0002, 0x44, null, 0, 100); } else { connection.controlTransfer(wrReqType, wrReq, 0x0002, 0x24, null, 0, 100); } /* * // reset the device (HX) if (type != 2) { // TODO: halt } else { * connection.controlTransfer(wrReqType, wrReq, 0x0008, 0, null, 0, 100); * connection.controlTransfer(wrReqType, wrReq, 0x0009, 0, null, 0, 100); } */ // initilize serial ret = connection.controlTransfer(glReqType, glReq, 0x0000, 0x00, data, 7, 100); Log.d(String.format("pl2303: GetLineRequest: %x => %x-%x-%x-%x-%x-%x-%x", ret, data[0], data[1], data[2], data[3], data[4], data[5], data[6])); // ret = connection.controlTransfer(wrReqType, wrReq, 0x0000, 0x01, null, 0, 100); // Log.d(String.format("pl2303: WriteRequest: %x", ret)); int baud = 9600; data[0] = (byte) (baud & 0xFF); data[1] = (byte) ((baud >> 8) & 0xFF); data[2] = (byte) ((baud >> 16) & 0xFF); data[3] = (byte) ((baud >> 24) & 0xFF); data[4] = 0; // stopbit: 1bit, 1: 1.5bits, 2: 2bits data[5] = 0; // parity: None, 1:odd, 2:even, 3:mark, 4:space data[6] = 8; // data size: 8, 5, 6, 7 data[7] = 0x00; ret = connection.controlTransfer(slReqType, slReq, 0x0000, 0x00, data, 7, 100); Log.d(String.format("pl2303: SetLineRequest: %x", ret)); // set break off ret = connection.controlTransfer(bkReqType, bkReq, 0x0000, 0x00, null, 0, 100); if (pl2303type == 1) { // for RTSCTS and HX device ret = connection.controlTransfer(wrReqType, wrReq, 0x0000, 0x61, null, 0, 100); } else { // for not RTSCTS ret = connection.controlTransfer(wrReqType, wrReq, 0x0000, 0x00, null, 0, 100); } // connection.releaseInterface(ui); } if (!conn.isConnected()) { connectionFailed(); return; } conn.start(); }