74  * phase goes through the various phases as instructed by the target.
245 	{BASR_PHASE_MATCH, "PHASE MATCH"},
324  * NCR5380_print_phase - show SCSI phase
327  * Print the current SCSI phase for debugging purposes
338 		shost_printk(KERN_DEBUG, instance, "REQ not asserted, phase unknown.\n");  in NCR5380_print_phase()
343 		shost_printk(KERN_DEBUG, instance, "phase %s\n", phases[i].name);  in NCR5380_print_phase()
448  * the SCSI bus busy. Check for BUS FREE phase. If not, try to abort the
733  * Called by the interrupt handler when DMA finishes or a phase
747 		p = hostdata->connected->SCp.phase;  in NCR5380_dma_complete()
771 		pr_err("scsi%d: bus stuck in data phase -- probably a single byte overrun!\n",  in NCR5380_dma_complete()
828  * - Bus phase mismatch (non-maskable in DMA Mode, cleared by ending DMA Mode)
865 			/* Probably End of DMA, Phase Mismatch or Loss of BSY.  in NCR5380_intr()
951 	unsigned char tmp[3], phase;  in NCR5380_select()  local
973 	 * Set the phase bits to 0, otherwise the NCR5380 won't drive the  in NCR5380_select()
986 	/* The chip now waits for BUS FREE phase. Then after the 800 ns  in NCR5380_select()
1066 	 * phase immediately after selection.  in NCR5380_select()
1157 	 * transfer phase should be a MESSAGE OUT phase so that we can send the  in NCR5380_select()
1175 	dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",  in NCR5380_select()
1181 	phase = PHASE_MSGOUT;  in NCR5380_select()
1182 	NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_select()
1214  * unsigned char *phase, int *count, unsigned char **data)
1216  * Purpose : transfers data in given phase using polled I/O
1218  * Inputs : instance - instance of driver, *phase - pointer to
1219  * what phase is expected, *count - pointer to number of
1222  * Returns : -1 when different phase is entered without transferring
1224  * is in same phase.
1226  * Also, *phase, *count, *data are modified in place.
1238 				unsigned char *phase, int *count,  in NCR5380_transfer_pio()  argument
1242 	unsigned char p = *phase, tmp;  in NCR5380_transfer_pio()
1248 	 * phase specified in the appropriate bits of the TARGET COMMAND  in NCR5380_transfer_pio()
1256 		 * Wait for assertion of REQ, after which the phase bits will be  in NCR5380_transfer_pio()
1265 		/* Check for phase mismatch */  in NCR5380_transfer_pio()
1267 			dsprintk(NDEBUG_PIO, instance, "phase mismatch\n");  in NCR5380_transfer_pio()
1281 		 * The SCSI standard suggests that in MSGOUT phase, the initiator  in NCR5380_transfer_pio()
1282 		 * should drop ATN on the last byte of the message phase  in NCR5380_transfer_pio()
1313  * 1.  We were in MSGOUT phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1316  * 2.  We are in a MSGIN phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1335 	/* The phase read from the bus is valid if either REQ is (already)  in NCR5380_transfer_pio()
1340 		*phase = tmp & PHASE_MASK;  in NCR5380_transfer_pio()
1342 		*phase = PHASE_UNKNOWN;  in NCR5380_transfer_pio()
1344 	if (!c || (*phase == p))  in NCR5380_transfer_pio()
1379  * MESSAGE OUT phase and sending an ABORT message.
1388 	unsigned char *msgptr, phase, tmp;  in do_abort()  local
1392 	/* Request message out phase */  in do_abort()
1396 	 * Wait for the target to indicate a valid phase by asserting  in do_abort()
1397 	 * REQ.  Once this happens, we'll have either a MSGOUT phase  in do_abort()
1399 	 * other phase and will have to source/sink data.  in do_abort()
1425 	phase = PHASE_MSGOUT;  in do_abort()
1426 	NCR5380_transfer_pio(instance, &phase, &len, &msgptr);  in do_abort()
1442  * unsigned char *phase, int *count, unsigned char **data)
1444  * Purpose : transfers data in given phase using either real
1447  * Inputs : instance - instance of driver, *phase - pointer to
1448  * what phase is expected, *count - pointer to number of
1451  * Returns : -1 when different phase is entered without transferring
1453  * is in same phase.
1455  * Also, *phase, *count, *data are modified in place.
1460 				unsigned char *phase, int *count,  in NCR5380_transfer_dma()  argument
1465 	unsigned char p = *phase;  in NCR5380_transfer_dma()
1471 		*phase = tmp;  in NCR5380_transfer_dma()
1475 	hostdata->connected->SCp.phase = p;  in NCR5380_transfer_dma()
1560  * and ACK both go false, or until a phase mismatch occurs.  Gather-sends  in NCR5380_transfer_dma()
1578  * properly, or the target switches to MESSAGE IN phase to signal a  in NCR5380_transfer_dma()
1624 				shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n");  in NCR5380_transfer_dma()
1659 	unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;  in NCR5380_information_transfer()  local
1670 		/* We only have a valid SCSI phase when REQ is asserted */  in NCR5380_information_transfer()
1672 			phase = (tmp & PHASE_MASK);  in NCR5380_information_transfer()
1673 			if (phase != old_phase) {  in NCR5380_information_transfer()
1674 				old_phase = phase;  in NCR5380_information_transfer()
1678 			if (phase == PHASE_CMDOUT &&  in NCR5380_information_transfer()
1701 			if (sink && (phase != PHASE_MSGOUT)) {  in NCR5380_information_transfer()
1714 			switch (phase) {  in NCR5380_information_transfer()
1754 					if (NCR5380_transfer_dma(instance, &phase,  in NCR5380_information_transfer()
1774 					NCR5380_transfer_pio(instance, &phase, &len,  in NCR5380_information_transfer()
1786 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1820 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1851 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1890 					phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1891 					NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1902 						phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1904 						NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1951 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1970 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1975 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1979 				shost_printk(KERN_ERR, instance, "unknown phase\n");  in NCR5380_information_transfer()
1981 			} /* switch(phase) */  in NCR5380_information_transfer()
2048 			/* BUS FREE phase */  in NCR5380_reselect()
2065 		unsigned char phase = PHASE_MSGIN;  in NCR5380_reselect()  local
2067 		NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_reselect()