/** Sets certain bits of the command register on/off */
protected final void setCommandBits(int mask, boolean on) {
int cmd = io.inPortWord(base + USBCMD);
if (on) {
cmd |= mask;
} else {
cmd &= ~mask;
}
io.outPortWord(base + USBCMD, cmd);
}
/** Sets certain bits of the port1 status and control register on/off */
protected final void setPortSCBits(int port, int mask, boolean on) {
int sc = io.inPortWord(base + USBPORTSC1 + (port << 1));
sc &= 0xFFF5;
if (on) {
sc |= mask;
} else {
sc &= ~mask;
}
io.outPortWord(base + USBPORTSC1 + (port << 1), sc);
}
/**
* Gets a word from the data register
*
* @return a word from the data register
*/
public final int getDataReg() {
return cmdBlock.inPortWord(cmdBlockStart + RW16_DATA_OFFSET);
}
/** Gets the frame number register */
protected final int getFrameNumber() {
return io.inPortWord(base + USBFRNUM);
}
/** Gets the interrupt enable register */
protected final int getInterruptEnable() {
return io.inPortWord(base + USBINTR);
}
/** Are the given bits in the status register set? */
protected final boolean getStatusBits(int mask) {
return ((io.inPortWord(base + USBSTS) & mask) == mask);
}
/** Gets the status register */
protected final int getStatus() {
return io.inPortWord(base + USBSTS);
}
/** Are the given bits in the command register set? */
protected final boolean getCommandBits(int mask) {
return ((io.inPortWord(base + USBCMD) & mask) == mask);
}
/** Gets the command register */
protected final int getCommand() {
return io.inPortWord(base + USBCMD);
}
/** Are the given bits in the port status and control register set? */
protected final boolean getPortSCBits(int port, int mask) {
return ((io.inPortWord(base + USBPORTSC1 + (port << 1)) & mask) == mask);
}
/** Gets the port status and control register */
protected final int getPortSC(int port) {
return io.inPortWord(base + USBPORTSC1 + (port << 1));
}
