/** @see org.jnode.driver.video.vgahw.VgaIO#setATTIndex(int) */
public void setATTIndex(int index) {
getSTAT();
mmio.setByte(NV8_ATTRINDW, (byte) (index | 0x20));
}
/**
* Open the given configuration
*
* @param config
*/
final RadeonSurface open(RadeonConfiguration config) throws ResourceNotFreeException {
// Get the best matching config
config = fbinfo.getBestConfiguration(config);
log.debug("BestConfig:" + config);
// 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;
log.debug("PLLInfo:" + fbinfo.getPllInfo());
currentState.calcForConfiguration(config, vgaIO, fbinfo);
// Disable video interrupts
vgaIO.disableIRQ();
// Allocate the screen memory
final MemoryResource screen = claimDeviceMemory(bytesPerScreen, 4 * 1024);
// final MemoryResource screen = deviceRam;
log.debug(
"Screen at 0x"
+ NumberUtils.hex(screen.getOffset().toInt())
+ ", size 0x"
+ NumberUtils.hex(screen.getSize().toInt()));
// if (true) { throw new ResourceNotFreeException("TEST"); }
// Save the current state
oldVgaState.saveFromVGA(vgaIO);
log.debug("oldState:" + oldVgaState);
// Turn off the screen
final DpmsState dpmsState = getDpms();
setDpms(DpmsState.OFF);
try {
// Set the new configuration
currentState.restoreToVGA(vgaIO);
log.debug("NewState: " + currentState);
vgaIO.setReg32(CRTC_OFFSET, (int) screen.getOffset().toInt());
if (fbinfo.hasCRTC2) {
vgaIO.setReg32(CRTC2_OFFSET, (int) screen.getOffset().toInt());
}
// Set the 8-bit palette
setPalette(1.0f);
// Create the graphics helper & clear the screen
final BitmapGraphics bitmapGraphics;
switch (bitsPerPixel) {
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 RadeonSurface(this, config, bitmapGraphics, screen, accel);
} finally {
// Turn the screen back on
setDpms(dpmsState);
}
}
/** @see org.jnode.driver.video.vgahw.VgaIO#getSEQ(int) */
public int getSEQ(int index) {
mmio.setByte(NV8_SEQIND, (byte) index);
return mmio.getByte(NV8_SEQDAT) & 0xff;
}
/** @see org.jnode.driver.video.vgahw.VgaIO#setATT(int, int) */
public void setATT(int index, int val) {
getSTAT();
mmio.setByte(NV8_ATTRINDW, (byte) (index | 0x20));
mmio.setByte(NV8_ATTRDATW, (byte) val);
}
/** @see org.jnode.driver.video.vgahw.VgaIO#getGRAF(int) */
public int getGRAF(int index) {
mmio.setByte(NV8_GRPHIND, (byte) index);
return mmio.getByte(NV8_GRPHDAT) & 0xff;
}
/** @see org.jnode.driver.video.vgahw.VgaIO#getCRT(int) */
public int getCRT(int index) {
mmio.setByte(NV8_CRTCIND, (byte) index);
return mmio.getByte(NV8_CRTCDAT) & 0xff;
}
/** @see org.jnode.driver.video.vgahw.VgaIO#getATT(int) */
public int getATT(int index) {
getSTAT();
mmio.setByte(NV8_ATTRINDW, (byte) (index | 0x20));
return mmio.getByte(NV8_ATTRDATR) & 0xff;
}
/**
* Sets an 8-bit MMIO value
*
* @param index
*/
final void setReg8(int index, int value) {
mmio.setByte(index, (byte) value);
}
/** @see org.jnode.driver.video.vgahw.VgaIO#setMISC(int) */
public void setMISC(int val) {
setSEQ(0, 1);
mmio.setByte(NV8_MISCW, (byte) val);
setSEQ(0, 3);
}
