101 /* The async interrupt entry points */
642 		    "Get iblock_cookie failed-Device interrupt%x\n", instance);  in asyattach()
648 		cmn_err(CE_NOTE, "Get iblock_cookie failed -soft interrupt%x\n",  in asyattach()
661 	 * Install interrupt handlers for this device.  in asyattach()
666 		    "Cannot set device interrupt for su driver\n");  in asyattach()
674 		cmn_err(CE_CONT, "Cannot set soft interrupt for su driver\n");  in asyattach()
1027 	 * Quit on interrupt.  in asyopen()
1074 	 * having had at least one transmitter interrupt.  If none of these are  in async_progress_check()
1187 	 * the interrupt routine grabs buffers from the write queue, we can't  in asyclose()
1233 		/* turn off DTR, RTS but NOT interrupt to 386 */  in asyclose()
1237 		 * Don't let an interrupt in the middle of close  in asyclose()
1264 	 * async_softint or an interrupt was pending when the process  in asyclose()
1279 	 * a pending software interrupt.  async_flags has been zeroed out,  in asyclose()
1488 	 * Call the modem status interrupt handler to check for the carrier  in asy_program()
1490 	 * (Note: Modem status interrupt is not enabled if CLOCAL is ON.)  in asy_program()
1494 	/* Set interrupt control */  in asy_program()
1578 	 * save the ICR. Clear the software interrupt  in asy_polled_enter()
1621  * asyintr() is the High Level Interrupt Handler.
1623  * There are four different interrupt types indexed by ISR register values:
1628  * This routine checks the Bit 0 (interrupt-not-pending) to determine if
1629  * the interrupt is from this port.
1669 	 *	 characters without going through interrupt services routine  in asyintr()
1672 	 *	 in one interrupt service.  in asyintr()
1674 	 *	 in one interrupt service.  in asyintr()
1710 		/* receiver interrupt or receiver errors */  in asyintr()
1714 		/* transmit interrupt */  in asyintr()
1718 		/* modem status interrupt */  in asyintr()
1727  * Transmitter interrupt service routine.
1730  * Otherwise, queue up a soft interrupt.
1745 	 * claim the interrupt without performing any action.  in async_txint()
1772 			 * the beginning of interrupt service  in async_txint()
1790  * Receiver interrupt: RxRDY interrupt, FIFO timeout interrupt or receive
1791  * error interrupt.
1795  * more than 15 characters have arrived, queue up a soft interrupt to
1824 			 * we need Soft interrupt to pass it to  in async_rxint()
1908 		ASYSETSOFT(asy);	/* need a soft interrupt */  in async_rxint()
1912  * Interrupt on port: handle PPS event.  This function is only called
1970  * Modem status interrupt.
1981 	msr = INB(MSR);	/* this resets the interrupt */  in async_msint()
2017  * Handle a second-stage interrupt.
2027 	 * Test and clear soft interrupt.  in asysoftintr()
2067  * Handle a software interrupt.
2360 		 * interrupt.  If the port is closed, leaveq() will have already  in async_softint()
3162 			 * Disable the Modem Status Interrupt  in async_ioctl()
3166 			 * so, donot worry about Modem interrupt when  in async_ioctl()