/*
* $Id$
*
* 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.ati.mach64;
import javax.naming.NameNotFoundException;
import org.apache.log4j.Logger;
import org.jnode.awt.util.BitmapGraphics;
import org.jnode.driver.DriverException;
import org.jnode.driver.bus.pci.PCIBaseAddress;
import org.jnode.driver.bus.pci.PCIConstants;
import org.jnode.driver.bus.pci.PCIDevice;
import org.jnode.driver.bus.pci.PCIDeviceConfig;
import org.jnode.driver.video.HardwareCursorAPI;
import org.jnode.driver.video.spi.DpmsState;
import org.jnode.driver.video.vgahw.DisplayMode;
import org.jnode.naming.InitialNaming;
import org.jnode.system.resource.MemoryResource;
import org.jnode.system.resource.ResourceManager;
import org.jnode.system.resource.ResourceNotFreeException;
import org.jnode.util.NumberUtils;
import org.vmmagic.unboxed.Address;
import org.vmmagic.unboxed.Extent;
import org.vmmagic.unboxed.Offset;
/**
* @author Ewout Prangsma (epr@users.sourceforge.net)
*/
final class Mach64Core implements Mach64Constants {
/** My logger */
private static final Logger log = Logger.getLogger(Mach64Core.class);
/** The driver we belong to */
private final Mach64Driver driver;
/** Framebuffer memory */
private final MemoryResource deviceRam;
/** Memory mapped I/O region, block 0 */
private final MemoryResource mmio0;
/** I/O utility */
private final Mach64VgaIO vgaIO;
/** Register state before opening a surface */
private final Mach64VgaState oldVgaState;
/** Register state after opening a surface */
private final Mach64VgaState currentState;
/**
* Initialize this instance.
*
* @param driver
* @param device
* @throws DriverException
*/
public Mach64Core(Mach64Driver driver, String model, PCIDevice device)
throws ResourceNotFreeException, DriverException {
this.driver = driver;
final PCIDeviceConfig pciCfg = device.getConfig();
// Disable VGA I/O, enable memory mapped I/O
int cmd = pciCfg.getCommand();
cmd &= ~PCIConstants.PCI_COMMAND_IO;
cmd |= PCIConstants.PCI_COMMAND_MEMORY;
pciCfg.setCommand(cmd);
final PCIBaseAddress fbAddr = pciCfg.asHeaderType0().getBaseAddresses()[0];
log.info("Found ATI " + model + ", pci " + pciCfg);
try {
final ResourceManager rm = InitialNaming.lookup(ResourceManager.NAME);
final int fbBase = (int) fbAddr.getMemoryBase() /* & 0xFF800000 */;
final int memSize = fbAddr.getSize();
log.info("Memory size " + NumberUtils.toBinaryByte(memSize));
// Map Device RAM
this.deviceRam =
rm.claimMemoryResource(device, Address.fromIntZeroExtend(fbBase), memSize,
ResourceManager.MEMMODE_NORMAL);
// Map MMIO block 0, first test for 8Mb framebuffers.
Offset block0Ofs = Offset.fromIntZeroExtend(0x7ffc00);
Extent mmioSize = Extent.fromIntZeroExtend(1024); // 1K
MemoryResource mmio0 = deviceRam.claimChildResource(block0Ofs, mmioSize, false);
Mach64VgaIO io = new Mach64VgaIO(deviceRam, mmio0);
if ((io.getReg32(CONFIG_CHIP_ID) & CFG_CHIP_TYPE) != pciCfg.getDeviceID()) {
// Try for 4Mb framebuffers.
mmio0.release();
block0Ofs = Offset.fromIntZeroExtend(0x3ffc00);
mmio0 = deviceRam.claimChildResource(block0Ofs, mmioSize, false);
io = new Mach64VgaIO(deviceRam, mmio0);
if ((io.getReg32(CONFIG_CHIP_ID) & CFG_CHIP_TYPE) != pciCfg.getDeviceID()) {
throw new DriverException("Cannot find block0 registers.");
}
}
this.vgaIO = io;
this.mmio0 = mmio0;
log.debug("Found ATI " + model + ", FB at 0x" + NumberUtils.hex(fbBase) + "s0x" +
NumberUtils.hex(memSize));
} catch (NameNotFoundException ex) {
throw new ResourceNotFreeException(ex);
}
this.oldVgaState = new Mach64VgaState();
this.currentState = new Mach64VgaState();
}
/**
* Open the given configuration.
*
* @param config
* @return
* @throws ResourceNotFreeException
*/
final Mach64Surface open(Mach64Configuration config) throws ResourceNotFreeException {
// Calculate new configuration
final DisplayMode mode = config.getDisplayMode();
final int width = mode.getWidth();
final int height = mode.getHeight();
final int pixels = width * height;
final int bitsPerPixel = config.getBitsPerPixel();
final int bytesPerLine = config.getBytesPerLine();
final int bytesPerScreen = bytesPerLine * height;
currentState.calcForConfiguration(config, vgaIO);
// Allocate the screen memory
final MemoryResource screen = claimDeviceMemory(bytesPerScreen, 4 * 1024);
// Block all interrupts.
vgaIO.disableIRQ();
// Save the current state
oldVgaState.saveFromVGA(vgaIO);
// Turn off the screen
final DpmsState dpmsState = getDpms();
setDpms(DpmsState.OFF);
try {
// Set new configuration
// Create the graphics helper & clear the screen
final BitmapGraphics bitmapGraphics;
switch (config.getBitsPerPixel()) {
case 8:
bitmapGraphics =
BitmapGraphics.create8bppInstance(screen, width, height, bytesPerLine,
0);
screen.setByte(0, (byte) 0, pixels);
break;
case 16:
bitmapGraphics =
BitmapGraphics.create16bppInstance(screen, width, height, bytesPerLine,
0);
screen.setShort(0, (byte) 0, pixels);
break;
case 24:
bitmapGraphics =
BitmapGraphics.create24bppInstance(screen, width, height, bytesPerLine,
0);
screen.setInt24(0, 0, pixels);
break;
case 32:
bitmapGraphics =
BitmapGraphics.create32bppInstance(screen, width, height, bytesPerLine,
0);
screen.setInt(0, 0, pixels);
break;
default:
throw new IllegalArgumentException("Invalid bits per pixel " + bitsPerPixel);
}
return new Mach64Surface(this, config, bitmapGraphics, screen);
} finally {
// Restore screen
setDpms(dpmsState);
}
}
/**
* Close the display.
*/
final void close() {
driver.close(this);
}
/**
* Release all resources.
*/
final void release() {
this.deviceRam.release();
this.mmio0.release();
}
/**
* Gets the hardware cursor API implementation.
*/
final HardwareCursorAPI getHardwareCursor() {
return null;
}
/**
* Claim a portion of RAM on the device.
*
* @param size
* @param align
* @return
* @throws IndexOutOfBoundsException
* @throws ResourceNotFreeException
*/
final MemoryResource claimDeviceMemory(int size, int align)
throws IndexOutOfBoundsException, ResourceNotFreeException {
return deviceRam.claimChildResource(size, align);
}
/**
* Gets the monitor power state.
*/
final DpmsState getDpms() {
final int val = vgaIO.getReg32(CRTC_GEN_CNTL);
final boolean display = ((val & CRTC_DISPLAY_DIS) == 0);
final boolean hsync = ((val & CRTC_HSYNC_DIS) == 0);
final boolean vsync = ((val & CRTC_VSYNC_DIS) == 0);
return new DpmsState(display, hsync, vsync);
}
/**
* Sets the monitor power state.
*/
final void setDpms(DpmsState state) {
int crtc_ext_cntl = vgaIO.getReg32(CRTC_GEN_CNTL);
crtc_ext_cntl &= ~(CRTC_DISPLAY_DIS | CRTC_HSYNC_DIS | CRTC_VSYNC_DIS);
if (!state.isDisplay()) {
crtc_ext_cntl |= CRTC_DISPLAY_DIS;
}
if (!state.isHsync()) {
crtc_ext_cntl |= CRTC_HSYNC_DIS;
}
if (!state.isVsync()) {
crtc_ext_cntl |= CRTC_VSYNC_DIS;
}
vgaIO.setReg32(CRTC_GEN_CNTL, crtc_ext_cntl);
log.debug("Set CRTC_GEN_CNTL to 0x" + NumberUtils.hex(crtc_ext_cntl));
}
}