/*
* $Id$
*
* 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.video.ati.radeon;
import org.jnode.driver.Device;
import org.jnode.driver.DeviceException;
import org.jnode.driver.DriverException;
import org.jnode.driver.bus.pci.PCIDevice;
import org.jnode.driver.video.AbstractFrameBufferDriver;
import org.jnode.driver.video.AlreadyOpenException;
import org.jnode.driver.video.FrameBufferConfiguration;
import org.jnode.driver.video.HardwareCursorAPI;
import org.jnode.driver.video.NotOpenException;
import org.jnode.driver.video.Surface;
import org.jnode.driver.video.UnknownConfigurationException;
import org.jnode.plugin.ConfigurationElement;
import org.jnode.system.resource.ResourceNotFreeException;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
public class RadeonDriver extends AbstractFrameBufferDriver implements RadeonConstants {
private FrameBufferConfiguration currentConfig;
private RadeonCore kernel;
private RadeonSurface surface;
private final int architecture;
private final String model;
private static final FrameBufferConfiguration[] CONFIGS =
new FrameBufferConfiguration[] {RadeonConfiguration.VESA_118,
RadeonConfiguration.VESA_115};
/**
* Create a new instance
*/
public RadeonDriver(ConfigurationElement config) throws DriverException {
this.architecture = parseArchitecture(config);
this.model = config.getAttribute("name");
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#getConfigurations()
*/
public FrameBufferConfiguration[] getConfigurations() {
return CONFIGS;
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#getCurrentConfiguration()
*/
public FrameBufferConfiguration getCurrentConfiguration() {
return currentConfig;
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#open(org.jnode.driver.video.FrameBufferConfiguration)
*/
public Surface open(FrameBufferConfiguration config)
throws UnknownConfigurationException, AlreadyOpenException, DeviceException {
for (int i = 0; i < CONFIGS.length; i++) {
if (config.equals(CONFIGS[i])) {
try {
this.surface = kernel.open((RadeonConfiguration) config);
this.currentConfig = config;
return surface;
} catch (ResourceNotFreeException ex) {
throw new DeviceException(ex);
}
}
}
throw new UnknownConfigurationException();
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#getCurrentSurface()
*/
public synchronized Surface getCurrentSurface() throws NotOpenException {
if (currentConfig != null) {
return surface;
} else {
throw new NotOpenException();
}
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#isOpen()
*/
public final synchronized boolean isOpen() {
return (currentConfig != null);
}
/**
* Notify of a close of the graphics object
*
* @param graphics
*/
final synchronized void close(RadeonCore graphics) {
this.currentConfig = null;
this.surface = null;
}
/**
* @see org.jnode.driver.Driver#startDevice()
*/
protected void startDevice() throws DriverException {
try {
kernel = new RadeonCore(this, architecture, model, (PCIDevice) getDevice());
} catch (ResourceNotFreeException ex) {
throw new DriverException(ex);
}
super.startDevice();
final Device dev = getDevice();
// dev.registerAPI(DisplayDataChannelAPI.class, kernel);
dev.registerAPI(HardwareCursorAPI.class, kernel.getHardwareCursor());
}
/**
* @see org.jnode.driver.Driver#stopDevice()
*/
protected void stopDevice() throws DriverException {
if (currentConfig != null) {
kernel.close();
}
if (kernel != null) {
kernel.release();
kernel = null;
}
final Device dev = getDevice();
// dev.unregisterAPI(DisplayDataChannelAPI.class);
dev.unregisterAPI(HardwareCursorAPI.class);
super.stopDevice();
}
private static final int parseArchitecture(ConfigurationElement config) throws DriverException {
final String arch = config.getAttribute("architecture");
if (arch == null) {
throw new DriverException("Architecture must be set");
} else if (arch.equals("R100")) {
return Architecture.R100;
} else if (arch.equals("RV100")) {
return Architecture.RV100;
} else if (arch.equals("R200")) {
return Architecture.R200;
} else if (arch.equals("RV200")) {
return Architecture.RV200;
} else if (arch.equals("RV250")) {
return Architecture.RV250;
} else if (arch.equals("R300")) {
return Architecture.R300;
} else if (arch.equals("M6")) {
return Architecture.M6;
} else if (arch.equals("M7")) {
return Architecture.M7;
} else if (arch.equals("M9")) {
return Architecture.M9;
} else {
throw new DriverException("Unknown architecture " + arch);
}
}
}