74  * phase goes through the various phases as instructed by the target.
261 	{BASR_PHASE_MATCH, "PHASE MATCH"},
340  * NCR5380_print_phase - show SCSI phase
343  * Print the current SCSI phase for debugging purposes
354 		shost_printk(KERN_DEBUG, instance, "REQ not asserted, phase unknown.\n");  in NCR5380_print_phase()
359 		shost_printk(KERN_DEBUG, instance, "phase %s\n", phases[i].name);  in NCR5380_print_phase()
464  * the SCSI bus busy. Check for BUS FREE phase. If not, try to abort the
753  * Called by the interrupt handler when DMA finishes or a phase
767 		p = hostdata->connected->SCp.phase;  in NCR5380_dma_complete()
791 		pr_err("scsi%d: bus stuck in data phase -- probably a single byte overrun!\n",  in NCR5380_dma_complete()
848  * - Bus phase mismatch (non-maskable in DMA Mode, cleared by ending DMA Mode)
885 			/* Probably End of DMA, Phase Mismatch or Loss of BSY.  in NCR5380_intr()
971 	unsigned char tmp[3], phase;  in NCR5380_select()  local
994 	 * Set the phase bits to 0, otherwise the NCR5380 won't drive the  in NCR5380_select()
1007 	/* The chip now waits for BUS FREE phase. Then after the 800 ns  in NCR5380_select()
1087 	 * phase immediately after selection.  in NCR5380_select()
1178 	 * transfer phase should be a MESSAGE OUT phase so that we can send the  in NCR5380_select()
1196 	dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",  in NCR5380_select()
1202 	phase = PHASE_MSGOUT;  in NCR5380_select()
1203 	NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_select()
1235  * unsigned char *phase, int *count, unsigned char **data)
1237  * Purpose : transfers data in given phase using polled I/O
1239  * Inputs : instance - instance of driver, *phase - pointer to
1240  * what phase is expected, *count - pointer to number of
1244  * Returns : -1 when different phase is entered without transferring
1246  * is in same phase.
1248  * Also, *phase, *count, *data are modified in place.
1260 				unsigned char *phase, int *count,  in NCR5380_transfer_pio()  argument
1264 	unsigned char p = *phase, tmp;  in NCR5380_transfer_pio()
1270 	 * phase specified in the appropriate bits of the TARGET COMMAND  in NCR5380_transfer_pio()
1278 		 * Wait for assertion of REQ, after which the phase bits will be  in NCR5380_transfer_pio()
1288 		/* Check for phase mismatch */  in NCR5380_transfer_pio()
1290 			dsprintk(NDEBUG_PIO, instance, "phase mismatch\n");  in NCR5380_transfer_pio()
1304 		 * The SCSI standard suggests that in MSGOUT phase, the initiator  in NCR5380_transfer_pio()
1305 		 * should drop ATN on the last byte of the message phase  in NCR5380_transfer_pio()
1336  * 1.  We were in MSGOUT phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1339  * 2.  We are in a MSGIN phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1358 	/* The phase read from the bus is valid if either REQ is (already)  in NCR5380_transfer_pio()
1363 		*phase = tmp & PHASE_MASK;  in NCR5380_transfer_pio()
1365 		*phase = PHASE_UNKNOWN;  in NCR5380_transfer_pio()
1367 	if (!c || (*phase == p))  in NCR5380_transfer_pio()
1402  * MESSAGE OUT phase and sending an ABORT message.
1412 	unsigned char *msgptr, phase, tmp;  in do_abort()  local
1416 	/* Request message out phase */  in do_abort()
1420 	 * Wait for the target to indicate a valid phase by asserting  in do_abort()
1421 	 * REQ.  Once this happens, we'll have either a MSGOUT phase  in do_abort()
1423 	 * other phase and will have to source/sink data.  in do_abort()
1451 	phase = PHASE_MSGOUT;  in do_abort()
1452 	NCR5380_transfer_pio(instance, &phase, &len, &msgptr, can_sleep);  in do_abort()
1468  * unsigned char *phase, int *count, unsigned char **data)
1470  * Purpose : transfers data in given phase using either real
1473  * Inputs : instance - instance of driver, *phase - pointer to
1474  * what phase is expected, *count - pointer to number of
1477  * Returns : -1 when different phase is entered without transferring
1479  * is in same phase.
1481  * Also, *phase, *count, *data are modified in place.
1486 				unsigned char *phase, int *count,  in NCR5380_transfer_dma()  argument
1491 	unsigned char p = *phase;  in NCR5380_transfer_dma()
1497 		*phase = tmp;  in NCR5380_transfer_dma()
1501 	hostdata->connected->SCp.phase = p;  in NCR5380_transfer_dma()
1586  * and ACK both go false, or until a phase mismatch occurs.  Gather-sends  in NCR5380_transfer_dma()
1604  * properly, or the target switches to MESSAGE IN phase to signal a  in NCR5380_transfer_dma()
1650 				shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n");  in NCR5380_transfer_dma()
1685 	unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;  in NCR5380_information_transfer()  local
1696 		/* We only have a valid SCSI phase when REQ is asserted */  in NCR5380_information_transfer()
1698 			phase = (tmp & PHASE_MASK);  in NCR5380_information_transfer()
1699 			if (phase != old_phase) {  in NCR5380_information_transfer()
1700 				old_phase = phase;  in NCR5380_information_transfer()
1704 			if (phase == PHASE_CMDOUT &&  in NCR5380_information_transfer()
1727 			if (sink && (phase != PHASE_MSGOUT)) {  in NCR5380_information_transfer()
1740 			switch (phase) {  in NCR5380_information_transfer()
1780 					if (NCR5380_transfer_dma(instance, &phase,  in NCR5380_information_transfer()
1800 					NCR5380_transfer_pio(instance, &phase, &len,  in NCR5380_information_transfer()
1813 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1849 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1879 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1918 					phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1919 					NCR5380_transfer_pio(instance, &phase, &len, &data, 1);  in NCR5380_information_transfer()
1930 						phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1932 						NCR5380_transfer_pio(instance, &phase, &len, &data, 1);  in NCR5380_information_transfer()
1979 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1997 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
2002 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
2006 				shost_printk(KERN_ERR, instance, "unknown phase\n");  in NCR5380_information_transfer()
2008 			} /* switch(phase) */  in NCR5380_information_transfer()
2075 			/* BUS FREE phase */  in NCR5380_reselect()
2092 		unsigned char phase = PHASE_MSGIN;  in NCR5380_reselect()  local
2094 		NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_reselect()