/*
* $Id$
*
* Copyright (C) 2003-2015 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.cirrus;
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.driver.video.ddc.DisplayDataChannelAPI;
import org.jnode.plugin.ConfigurationElement;
import org.jnode.system.resource.ResourceNotFreeException;
/**
* @author peda
*/
public class CirrusDriver extends AbstractFrameBufferDriver implements CirrusConstants {
private final String architecture;
private final String model;
private FrameBufferConfiguration currentConfig;
private CirrusCore driver;
/**
* Create a new instance
*/
public CirrusDriver(ConfigurationElement config) throws DriverException {
this(config.getAttribute("architecture"), config.getAttribute("name"));
}
/**
* Create a new instance
*/
public CirrusDriver(String architecture, String model) {
this.architecture = architecture;
this.model = model;
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#getConfigurations()
*/
public final FrameBufferConfiguration[] getConfigurations() {
return driver.getConfigurations();
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#getCurrentConfiguration()
*/
public final FrameBufferConfiguration getCurrentConfiguration() {
return currentConfig;
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#open(org.jnode.driver.video.FrameBufferConfiguration)
*/
public synchronized Surface open(FrameBufferConfiguration config)
throws UnknownConfigurationException, AlreadyOpenException, DeviceException {
// TODO: do check if mode is possible
driver.open(config);
return driver;
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#getCurrentSurface()
*/
public synchronized Surface getCurrentSurface() throws NotOpenException {
if (currentConfig != null) {
return driver;
} else {
throw new NotOpenException();
}
}
/**
* @see org.jnode.driver.video.FrameBufferAPI#isOpen()
*/
public final synchronized boolean isOpen() {
return (currentConfig != null);
}
/**
* close the current config
*/
public final void close() {
this.currentConfig = null;
}
/**
* @see org.jnode.driver.Driver#startDevice()
*/
protected void startDevice() throws DriverException {
try {
driver = new CirrusCore(this, architecture, model, (PCIDevice) getDevice());
} catch (ResourceNotFreeException ex) {
throw new DriverException(ex);
}
super.startDevice();
@SuppressWarnings("unused")
final Device dev = getDevice();
//dev.registerAPI(DisplayDataChannelAPI.class, driver);
// <-- should we register this one? We do read edid our own..
//dev.registerAPI(HardwareCursorAPI.class, driver.getHardwareCursor());
}
/**
* @see org.jnode.driver.Driver#stopDevice()
*/
protected void stopDevice() throws DriverException {
if (currentConfig != null) {
driver.close();
}
if (driver != null) {
driver.release();
driver = null;
}
final Device dev = getDevice();
dev.unregisterAPI(DisplayDataChannelAPI.class);
dev.unregisterAPI(HardwareCursorAPI.class);
super.stopDevice();
}
}