/*
* $Id$
*
* Copyright (C) 2003-2014 JNode.org
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; If not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.jnode.driver.input.usb;
import org.apache.log4j.Logger;
import org.jnode.driver.Driver;
import org.jnode.driver.DriverException;
import org.jnode.driver.bus.usb.USBConfiguration;
import org.jnode.driver.bus.usb.USBConstants;
import org.jnode.driver.bus.usb.USBDataPipe;
import org.jnode.driver.bus.usb.USBDevice;
import org.jnode.driver.bus.usb.USBEndPoint;
import org.jnode.driver.bus.usb.USBException;
import org.jnode.driver.bus.usb.USBInterface;
import org.jnode.driver.bus.usb.USBPacket;
import org.jnode.driver.bus.usb.USBPipeListener;
import org.jnode.driver.bus.usb.USBRequest;
import org.jnode.driver.input.PointerAPI;
import org.jnode.driver.input.PointerAPIAdapter;
import org.jnode.driver.input.PointerEvent;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
public class USBMouseDriver extends Driver implements USBPipeListener, USBConstants {
/** My logger */
private static final Logger log = Logger.getLogger(USBMouseDriver.class);
/** The endpoint we're communicating with */
private USBEndPoint ep;
/** The interrupt pipe */
private USBDataPipe intPipe;
/** The request data packet */
private USBPacket intData;
/** The pointer API implementation */
private final PointerAPIAdapter apiAdapter = new PointerAPIAdapter();
/**
* @see org.jnode.driver.Driver#startDevice()
*/
protected void startDevice() throws DriverException {
try {
final USBDevice dev = (USBDevice) getDevice();
// Get active configuration
final USBConfiguration conf = dev.getConfiguration();
final USBInterface intf = conf.getInterface(0);
this.ep = null;
for (int i = 0; i < intf.getDescriptor().getNumEndPoints(); i++) {
ep = intf.getEndPoint(i);
if (((ep.getDescriptor().getAttributes() & USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT) &&
((ep.getDescriptor().getEndPointAddress() & USB_DIR_IN) == 0))
break;
}
if (this.ep == null)
throw new DriverException(
"Found no interrupt endpoint, HID specs required at least one.");
// Create the interrupt request
intPipe = (USBDataPipe) ep.getPipe();
intPipe.addListener(this);
intPipe.open();
intData = new USBPacket(ep.getDescriptor().getMaxPacketSize());
final USBRequest req = intPipe.createRequest(intData);
intPipe.asyncSubmit(req);
// Register the PointerAPI
dev.registerAPI(PointerAPI.class, apiAdapter);
} catch (USBException ex) {
throw new DriverException(ex);
}
}
/**
* @see org.jnode.driver.Driver#stopDevice()
*/
protected void stopDevice() throws DriverException {
// Unregister API
getDevice().unregisterAPI(PointerAPI.class);
apiAdapter.clear();
// Close the pipe
if (intPipe != null) {
intPipe.close();
intPipe.removeListener(this);
}
intData = null;
ep = null;
}
/**
* @see org.jnode.driver.bus.usb.USBPipeListener#requestCompleted(org.jnode.driver.bus.usb.USBRequest)
*/
public void requestCompleted(USBRequest request) {
// log.debug("Completed");
final byte[] data = intData.getData();
int buttons = 0;
final int v0 = data[0];
if ((v0 & 0x01) != 0) {
buttons |= PointerEvent.BUTTON_LEFT;
}
if ((v0 & 0x02) != 0) {
buttons |= PointerEvent.BUTTON_RIGHT;
}
if ((v0 & 0x04) != 0) {
buttons |= PointerEvent.BUTTON_MIDDLE;
}
final PointerEvent event =
new PointerEvent(buttons, data[1], data[2], data[3], PointerEvent.RELATIVE);
apiAdapter.fireEvent(event);
}
/**
* @see org.jnode.driver.bus.usb.USBPipeListener#requestFailed(org.jnode.driver.bus.usb.USBRequest)
*/
public void requestFailed(USBRequest request) {
log.debug("Mouse interrupt error status:" + request.getStatus());
intPipe.close();
}
}