/*
* $Id$
*
* 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.jnode.driver.Device;
import org.jnode.driver.DeviceToDriverMapper;
import org.jnode.driver.Driver;
import org.jnode.driver.bus.usb.InterfaceDescriptor;
import org.jnode.driver.bus.usb.USBConfiguration;
import org.jnode.driver.bus.usb.USBConstants;
import org.jnode.driver.bus.usb.USBDevice;
import org.jnode.driver.bus.usb.USBInterface;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
public class USBInputDeviceToDriverMapper implements DeviceToDriverMapper, USBConstants,
USBHidConstants {
/**
* @see org.jnode.driver.DeviceToDriverMapper#findDriver(org.jnode.driver.Device)
*/
public Driver findDriver(Device device) {
if (device instanceof USBDevice) {
final USBDevice dev = (USBDevice) device;
if (dev.getDescriptor().getDeviceClass() == USB_CLASS_PER_INTERFACE) {
final USBConfiguration conf = dev.getConfiguration(0);
final USBInterface intf = conf.getInterface(0);
final InterfaceDescriptor descr = intf.getDescriptor();
if (descr.getInterfaceClass() == USB_CLASS_HID) {
if (descr.getInterfaceSubClass() == HID_SUBCLASS_BOOT_INTERFACE) {
switch (descr.getInterfaceProtocol()) {
case HID_PROTOCOL_KEYBOARD:
// We found an USB keyboard
return new USBKeyboardDriver();
case HID_PROTOCOL_MOUSE:
// We found an USB mouse
return new USBMouseDriver();
default:
return null;
}
}
}
}
}
return null;
}
/**
* Gets the matching level of this mapper. The mappers are queried in order
* of match level. This will ensure the best available driver for a device.
*
* @return One of the MATCH_xxx constants.
* @see #MATCH_DEVICE_REVISION
* @see #MATCH_DEVICE
* @see #MATCH_DEVCLASS
*/
public int getMatchLevel() {
return MATCH_DEVCLASS;
}
}