i440bxdevicetodrivermapper.java

来自「纯java操作系统jnode,安装简单和操作简单的个人使用的Java操作系统」· Java 代码 · 共 91 行

/*
 * $Id: i440BXDeviceToDriverMapper.java,v 1.1 2003/11/25 11:42:04 epr Exp $
 */
package org.jnode.driver.chipset.i440BX;

import org.jnode.driver.Device;
import org.jnode.driver.DeviceToDriverMapper;
import org.jnode.driver.Driver;
import org.jnode.driver.pci.PCIDevice;
import org.jnode.driver.pci.PCIDeviceConfig;
import org.jnode.driver.pci.PCI_IDs;

/**
 * i440BX device to driver mapper.
 * 
 * <p>
 * Title:
 * </p>
 * <p>
 * Description:
 * </p>
 * <p>
 * Licence: GNU LGPL
 * </p>
 * <p>
 * </p>
 * 
 * @author Francois-Frederic Ozog
 * @version 1.0
 */

public class i440BXDeviceToDriverMapper implements DeviceToDriverMapper {

	//private static Firmware firmware;

	public Driver findDriver(Device device) {
		if (!(device instanceof PCIDevice)) {
			return null;
		}
		final PCIDevice dev = (PCIDevice) device;
		final PCIDeviceConfig config = dev.getConfig();

		if (config.getVendorID() != PCI_IDs.PCI_VENDOR_ID_INTEL)
			return null;

		switch (config.getDeviceID()) {

			// 440BX chipset members
			case 0x7110 :
				//firmware=new BIOS(); // we assume this is a BIOS system, not an EFI
				//return new i82371AB_ISABridge();
				break;
			case 0x7111 :
				//return new i82371AB_IDEController();
				break;
			case 0x7112 :
				//return new i82371AB_USBController();
				break;
			case 0x7113 :
				return new i82371AB_ACPI();
			case 0x7190 :
				//return new i82443BX_HostPCIBridge();
				break;
			case 0x7191 :
				//return new i82443BX_PCIPCIBridge();
				break;
			case 0x7192 :
				// return new i82443BX_HostPCIBridge();
				break;

			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_DEVICE;
	}
}