/*
* $Id$
*
* 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.net.ne2000.pci;
import org.jnode.driver.Device;
import org.jnode.driver.DriverException;
import org.jnode.driver.bus.pci.PCIBaseAddress;
import org.jnode.driver.bus.pci.PCIDevice;
import org.jnode.driver.bus.pci.PCIHeaderType0;
import org.jnode.driver.net.ne2000.Ne2000Core;
import org.jnode.driver.net.ne2000.Ne2000Flags;
import org.jnode.system.resource.ResourceNotFreeException;
import org.jnode.system.resource.ResourceOwner;
/**
* @author epr
*/
public class Ne2000PCI extends Ne2000Core {
/**
* Create a new instance
*
* @param owner
* @param device
* @param flags
*/
public Ne2000PCI(Ne2000PCIDriver driver, ResourceOwner owner, PCIDevice device,
Ne2000Flags flags) throws ResourceNotFreeException, DriverException {
super(driver, owner, device, flags);
}
/**
* Gets the first IO-Address used by the given device
*
* @param device
* @param flags
*/
protected int getIOBase(Device device, Ne2000Flags flags) throws DriverException {
final PCIHeaderType0 config = ((PCIDevice) device).getConfig().asHeaderType0();
final PCIBaseAddress[] addrs = config.getBaseAddresses();
if (addrs.length < 1) {
throw new DriverException("Cannot find iobase: not base addresses");
}
if (!addrs[0].isIOSpace()) {
throw new DriverException("Cannot find iobase: first address is not I/O");
}
return addrs[0].getIOBase();
}
/**
* Gets the number of IO-Addresses used by the given device
*
* @param device
* @param flags
*/
protected int getIOLength(Device device, Ne2000Flags flags) throws DriverException {
final PCIHeaderType0 config = ((PCIDevice) device).getConfig().asHeaderType0();
final PCIBaseAddress[] addrs = config.getBaseAddresses();
if (addrs.length < 1) {
throw new DriverException("Cannot find iobase: not base addresses");
}
if (!addrs[0].isIOSpace()) {
throw new DriverException("Cannot find iobase: first address is not I/O");
}
return addrs[0].getSize();
}
/**
* Gets the IRQ used by the given device
*
* @param device
* @param flags
*/
protected int getIRQ(Device device, Ne2000Flags flags) throws DriverException {
final PCIHeaderType0 config = ((PCIDevice) device).getConfig().asHeaderType0();
return config.getInterruptLine();
}
}