Cross Reference: /src/sys/dev/ic/com.c

Lines Matching defs:iir
691 			 * IIR changes into the EFR if LCR is set to LCR_EERS
692 			 * on 16650s. We also know IIR != 0 at this point.
2213 	u_char lsr, iir;
2221 	iir = CSR_READ_1(regsp, COM_REG_IIR);
2225 	    (iir & IIR_BUSY) == IIR_BUSY) {
2237 		iir = CSR_READ_1(regsp, COM_REG_IIR);
2242 	    (iir & IIR_BUSY) == IIR_BUSY) {
2279 	if (ISSET(iir, IIR_NOPEND)) {
2305 		if (sc->sc_type == COM_TYPE_BCMAUXUART && ISSET(iir, IIR_RXRDY))
2371 			if ((iir & (IIR_RXRDY|IIR_TXRDY)) == IIR_RXRDY) {
2412 	} while (!ISSET((iir =
2416 	     * by IIR read, so we can't do this way: `process all interrupts,
2419 	    (iir & IIR_IMASK) != IIR_TXRDY);
2424 	 * the last LSR read and IIR read above.
2468 	if (!ISSET((iir = CSR_READ_1(regsp, COM_REG_IIR)), IIR_NOPEND))
2478 	rnd_add_uint32(&sc->rnd_source, iir | lsr);
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