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
749  * Called by the interrupt handler when DMA finishes or a phase
763 		p = hostdata->connected->SCp.phase;  in NCR5380_dma_complete()
787 		pr_err("scsi%d: bus stuck in data phase -- probably a single byte overrun!\n",  in NCR5380_dma_complete()
844  * - Bus phase mismatch (non-maskable in DMA Mode, cleared by ending DMA Mode)
881 			/* Probably End of DMA, Phase Mismatch or Loss of BSY.  in NCR5380_intr()
967 	unsigned char tmp[3], phase;  in NCR5380_select()  local
990 	 * Set the phase bits to 0, otherwise the NCR5380 won't drive the  in NCR5380_select()
1003 	/* The chip now waits for BUS FREE phase. Then after the 800 ns  in NCR5380_select()
1083 	 * phase immediately after selection.  in NCR5380_select()
1174 	 * transfer phase should be a MESSAGE OUT phase so that we can send the  in NCR5380_select()
1192 	dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",  in NCR5380_select()
1198 	phase = PHASE_MSGOUT;  in NCR5380_select()
1199 	NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_select()
1231  * unsigned char *phase, int *count, unsigned char **data)
1233  * Purpose : transfers data in given phase using polled I/O
1235  * Inputs : instance - instance of driver, *phase - pointer to
1236  * what phase is expected, *count - pointer to number of
1239  * Returns : -1 when different phase is entered without transferring
1241  * is in same phase.
1243  * Also, *phase, *count, *data are modified in place.
1255 				unsigned char *phase, int *count,  in NCR5380_transfer_pio()  argument
1259 	unsigned char p = *phase, tmp;  in NCR5380_transfer_pio()
1265 	 * phase specified in the appropriate bits of the TARGET COMMAND  in NCR5380_transfer_pio()
1273 		 * Wait for assertion of REQ, after which the phase bits will be  in NCR5380_transfer_pio()
1282 		/* Check for phase mismatch */  in NCR5380_transfer_pio()
1284 			dsprintk(NDEBUG_PIO, instance, "phase mismatch\n");  in NCR5380_transfer_pio()
1298 		 * The SCSI standard suggests that in MSGOUT phase, the initiator  in NCR5380_transfer_pio()
1299 		 * should drop ATN on the last byte of the message phase  in NCR5380_transfer_pio()
1330  * 1.  We were in MSGOUT phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1333  * 2.  We are in a MSGIN phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1352 	/* The phase read from the bus is valid if either REQ is (already)  in NCR5380_transfer_pio()
1357 		*phase = tmp & PHASE_MASK;  in NCR5380_transfer_pio()
1359 		*phase = PHASE_UNKNOWN;  in NCR5380_transfer_pio()
1361 	if (!c || (*phase == p))  in NCR5380_transfer_pio()
1396  * MESSAGE OUT phase and sending an ABORT message.
1405 	unsigned char *msgptr, phase, tmp;  in do_abort()  local
1409 	/* Request message out phase */  in do_abort()
1413 	 * Wait for the target to indicate a valid phase by asserting  in do_abort()
1414 	 * REQ.  Once this happens, we'll have either a MSGOUT phase  in do_abort()
1416 	 * other phase and will have to source/sink data.  in do_abort()
1442 	phase = PHASE_MSGOUT;  in do_abort()
1443 	NCR5380_transfer_pio(instance, &phase, &len, &msgptr);  in do_abort()
1459  * unsigned char *phase, int *count, unsigned char **data)
1461  * Purpose : transfers data in given phase using either real
1464  * Inputs : instance - instance of driver, *phase - pointer to
1465  * what phase is expected, *count - pointer to number of
1468  * Returns : -1 when different phase is entered without transferring
1470  * is in same phase.
1472  * Also, *phase, *count, *data are modified in place.
1477 				unsigned char *phase, int *count,  in NCR5380_transfer_dma()  argument
1482 	unsigned char p = *phase;  in NCR5380_transfer_dma()
1488 		*phase = tmp;  in NCR5380_transfer_dma()
1492 	hostdata->connected->SCp.phase = p;  in NCR5380_transfer_dma()
1577  * and ACK both go false, or until a phase mismatch occurs.  Gather-sends  in NCR5380_transfer_dma()
1595  * properly, or the target switches to MESSAGE IN phase to signal a  in NCR5380_transfer_dma()
1641 				shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n");  in NCR5380_transfer_dma()
1676 	unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;  in NCR5380_information_transfer()  local
1687 		/* We only have a valid SCSI phase when REQ is asserted */  in NCR5380_information_transfer()
1689 			phase = (tmp & PHASE_MASK);  in NCR5380_information_transfer()
1690 			if (phase != old_phase) {  in NCR5380_information_transfer()
1691 				old_phase = phase;  in NCR5380_information_transfer()
1695 			if (phase == PHASE_CMDOUT &&  in NCR5380_information_transfer()
1718 			if (sink && (phase != PHASE_MSGOUT)) {  in NCR5380_information_transfer()
1731 			switch (phase) {  in NCR5380_information_transfer()
1771 					if (NCR5380_transfer_dma(instance, &phase,  in NCR5380_information_transfer()
1791 					NCR5380_transfer_pio(instance, &phase, &len,  in NCR5380_information_transfer()
1803 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1839 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1870 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1909 					phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1910 					NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1921 						phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1923 						NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1970 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1989 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1994 				NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_information_transfer()
1998 				shost_printk(KERN_ERR, instance, "unknown phase\n");  in NCR5380_information_transfer()
2000 			} /* switch(phase) */  in NCR5380_information_transfer()
2067 			/* BUS FREE phase */  in NCR5380_reselect()
2084 		unsigned char phase = PHASE_MSGIN;  in NCR5380_reselect()  local
2086 		NCR5380_transfer_pio(instance, &phase, &len, &data);  in NCR5380_reselect()