74  * phase goes through the various phases as instructed by the target.
258 	{BASR_PHASE_MATCH, "PHASE MATCH"},
337  * NCR5380_print_phase - show SCSI phase
340  * Print the current SCSI phase for debugging purposes
351 		shost_printk(KERN_DEBUG, instance, "REQ not asserted, phase unknown.\n");  in NCR5380_print_phase()
356 		shost_printk(KERN_DEBUG, instance, "phase %s\n", phases[i].name);  in NCR5380_print_phase()
461  * the SCSI bus busy. Check for BUS FREE phase. If not, try to abort the
750  * Called by the interrupt handler when DMA finishes or a phase
765 		p = ncmd->phase;  in NCR5380_dma_complete()
789 		pr_err("scsi%d: bus stuck in data phase -- probably a single byte overrun!\n",  in NCR5380_dma_complete()
846  * - Bus phase mismatch (non-maskable in DMA Mode, cleared by ending DMA Mode)
883 			/* Probably End of DMA, Phase Mismatch or Loss of BSY.  in NCR5380_intr()
969 	unsigned char tmp[3], phase;  in NCR5380_select()  local
992 	 * Set the phase bits to 0, otherwise the NCR5380 won't drive the  in NCR5380_select()
1005 	/* The chip now waits for BUS FREE phase. Then after the 800 ns  in NCR5380_select()
1085 	 * phase immediately after selection.  in NCR5380_select()
1176 	 * transfer phase should be a MESSAGE OUT phase so that we can send the  in NCR5380_select()
1194 	dsprintk(NDEBUG_SELECTION, instance, "target %d selected, going into MESSAGE OUT phase.\n",  in NCR5380_select()
1200 	phase = PHASE_MSGOUT;  in NCR5380_select()
1201 	NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_select()
1233  * unsigned char *phase, int *count, unsigned char **data)
1235  * Purpose : transfers data in given phase using polled I/O
1237  * Inputs : instance - instance of driver, *phase - pointer to
1238  * what phase is expected, *count - pointer to number of
1242  * Returns : -1 when different phase is entered without transferring
1244  * is in same phase.
1246  * Also, *phase, *count, *data are modified in place.
1258 				unsigned char *phase, int *count,  in NCR5380_transfer_pio()  argument
1262 	unsigned char p = *phase, tmp;  in NCR5380_transfer_pio()
1268 	 * phase specified in the appropriate bits of the TARGET COMMAND  in NCR5380_transfer_pio()
1276 		 * Wait for assertion of REQ, after which the phase bits will be  in NCR5380_transfer_pio()
1286 		/* Check for phase mismatch */  in NCR5380_transfer_pio()
1288 			dsprintk(NDEBUG_PIO, instance, "phase mismatch\n");  in NCR5380_transfer_pio()
1302 		 * The SCSI standard suggests that in MSGOUT phase, the initiator  in NCR5380_transfer_pio()
1303 		 * should drop ATN on the last byte of the message phase  in NCR5380_transfer_pio()
1334  * 1.  We were in MSGOUT phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1337  * 2.  We are in a MSGIN phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1356 	/* The phase read from the bus is valid if either REQ is (already)  in NCR5380_transfer_pio()
1361 		*phase = tmp & PHASE_MASK;  in NCR5380_transfer_pio()
1363 		*phase = PHASE_UNKNOWN;  in NCR5380_transfer_pio()
1365 	if (!c || (*phase == p))  in NCR5380_transfer_pio()
1400  * MESSAGE OUT phase and sending an ABORT message.
1410 	unsigned char *msgptr, phase, tmp;  in do_abort()  local
1414 	/* Request message out phase */  in do_abort()
1418 	 * Wait for the target to indicate a valid phase by asserting  in do_abort()
1419 	 * REQ.  Once this happens, we'll have either a MSGOUT phase  in do_abort()
1421 	 * other phase and will have to source/sink data.  in do_abort()
1449 	phase = PHASE_MSGOUT;  in do_abort()
1450 	NCR5380_transfer_pio(instance, &phase, &len, &msgptr, can_sleep);  in do_abort()
1466  * unsigned char *phase, int *count, unsigned char **data)
1468  * Purpose : transfers data in given phase using either real
1471  * Inputs : instance - instance of driver, *phase - pointer to
1472  * what phase is expected, *count - pointer to number of
1475  * Returns : -1 when different phase is entered without transferring
1477  * is in same phase.
1479  * Also, *phase, *count, *data are modified in place.
1484 				unsigned char *phase, int *count,  in NCR5380_transfer_dma()  argument
1489 	unsigned char p = *phase;  in NCR5380_transfer_dma()
1495 		*phase = tmp;  in NCR5380_transfer_dma()
1499 	NCR5380_to_ncmd(hostdata->connected)->phase = p;  in NCR5380_transfer_dma()
1584  * and ACK both go false, or until a phase mismatch occurs.  Gather-sends  in NCR5380_transfer_dma()
1602  * properly, or the target switches to MESSAGE IN phase to signal a  in NCR5380_transfer_dma()
1648 				shost_printk(KERN_ERR, instance, "PDMA write: DRQ and phase timeout\n");  in NCR5380_transfer_dma()
1683 	unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;  in NCR5380_information_transfer()  local
1694 		/* We only have a valid SCSI phase when REQ is asserted */  in NCR5380_information_transfer()
1696 			phase = (tmp & PHASE_MASK);  in NCR5380_information_transfer()
1697 			if (phase != old_phase) {  in NCR5380_information_transfer()
1698 				old_phase = phase;  in NCR5380_information_transfer()
1702 			if (phase == PHASE_CMDOUT &&  in NCR5380_information_transfer()
1725 			if (sink && (phase != PHASE_MSGOUT)) {  in NCR5380_information_transfer()
1738 			switch (phase) {  in NCR5380_information_transfer()
1778 					if (NCR5380_transfer_dma(instance, &phase,  in NCR5380_information_transfer()
1798 					NCR5380_transfer_pio(instance, &phase, &len,  in NCR5380_information_transfer()
1811 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1847 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1877 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1916 					phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1917 					NCR5380_transfer_pio(instance, &phase, &len, &data, 1);  in NCR5380_information_transfer()
1928 						phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1930 						NCR5380_transfer_pio(instance, &phase, &len, &data, 1);  in NCR5380_information_transfer()
1977 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1995 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
2000 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
2004 				shost_printk(KERN_ERR, instance, "unknown phase\n");  in NCR5380_information_transfer()
2006 			} /* switch(phase) */  in NCR5380_information_transfer()
2073 			/* BUS FREE phase */  in NCR5380_reselect()
2090 		unsigned char phase = PHASE_MSGIN;  in NCR5380_reselect()  local
2092 		NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_reselect()