74  * phase goes through the various phases as instructed by the target.
256 	{BASR_PHASE_MATCH, "PHASE MATCH"},
335  * NCR5380_print_phase - show SCSI phase
338  * Print the current SCSI phase for debugging purposes
349 		shost_printk(KERN_DEBUG, instance, "REQ not asserted, phase unknown.\n");  in NCR5380_print_phase()
354 		shost_printk(KERN_DEBUG, instance, "phase %s\n", phases[i].name);  in NCR5380_print_phase()
459  * the SCSI bus busy. Check for BUS FREE phase. If not, try to abort the
748  * Called by the interrupt handler when DMA finishes or a phase
763 		p = ncmd->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, 0);  in NCR5380_select()
1230  * NCR5380_transfer_pio() - transfers data in given phase using polled I/O
1232  * @phase: pointer to what phase is expected
1237  * Returns: void. *phase, *count, *data are modified in place.
1247 				 unsigned char *phase, int *count,  in NCR5380_transfer_pio()  argument
1251 	unsigned char p = *phase, tmp;  in NCR5380_transfer_pio()
1257 	 * phase specified in the appropriate bits of the TARGET COMMAND  in NCR5380_transfer_pio()
1265 		 * Wait for assertion of REQ, after which the phase bits will be  in NCR5380_transfer_pio()
1275 		/* Check for phase mismatch */  in NCR5380_transfer_pio()
1277 			dsprintk(NDEBUG_PIO, instance, "phase mismatch\n");  in NCR5380_transfer_pio()
1291 		 * The SCSI standard suggests that in MSGOUT phase, the initiator  in NCR5380_transfer_pio()
1292 		 * should drop ATN on the last byte of the message phase  in NCR5380_transfer_pio()
1325 		 * 1.  We were in MSGOUT phase, and we are on the last byte of  in NCR5380_transfer_pio()
1328 		 * 2.  We are in MSGIN phase, and we are on the last byte of the  in NCR5380_transfer_pio()
1347 	/* The phase read from the bus is valid if either REQ is (already)  in NCR5380_transfer_pio()
1352 		*phase = tmp & PHASE_MASK;  in NCR5380_transfer_pio()
1354 		*phase = PHASE_UNKNOWN;  in NCR5380_transfer_pio()
1386  * MESSAGE OUT phase and sending an ABORT message.
1396 	unsigned char *msgptr, phase, tmp;  in do_abort()  local
1400 	/* Request message out phase */  in do_abort()
1404 	 * Wait for the target to indicate a valid phase by asserting  in do_abort()
1405 	 * REQ.  Once this happens, we'll have either a MSGOUT phase  in do_abort()
1407 	 * other phase and will have to source/sink data.  in do_abort()
1435 	phase = PHASE_MSGOUT;  in do_abort()
1436 	NCR5380_transfer_pio(instance, &phase, &len, &msgptr, can_sleep);  in do_abort()
1452  * unsigned char *phase, int *count, unsigned char **data)
1454  * Purpose : transfers data in given phase using either real
1457  * Inputs : instance - instance of driver, *phase - pointer to
1458  * what phase is expected, *count - pointer to number of
1461  * Returns : -1 when different phase is entered without transferring
1463  * is in same phase.
1465  * Also, *phase, *count, *data are modified in place.
1470 				unsigned char *phase, int *count,  in NCR5380_transfer_dma()  argument
1476 	unsigned char p = *phase;  in NCR5380_transfer_dma()
1482 		*phase = tmp;  in NCR5380_transfer_dma()
1486 	ncmd->phase = p;  in NCR5380_transfer_dma()
1571 	 * and ACK both go false, or until a phase mismatch occurs. Gather-sends  in NCR5380_transfer_dma()
1592 	 * phase to signal a disconnection (either operation bringing the DMA  in NCR5380_transfer_dma()
1668 	unsigned char phase, tmp, extended_msg[10], old_phase = 0xff;  in NCR5380_information_transfer()  local
1679 		/* We only have a valid SCSI phase when REQ is asserted */  in NCR5380_information_transfer()
1681 			phase = (tmp & PHASE_MASK);  in NCR5380_information_transfer()
1682 			if (phase != old_phase) {  in NCR5380_information_transfer()
1683 				old_phase = phase;  in NCR5380_information_transfer()
1687 			if (phase == PHASE_CMDOUT &&  in NCR5380_information_transfer()
1710 			if (sink && (phase != PHASE_MSGOUT)) {  in NCR5380_information_transfer()
1723 			switch (phase) {  in NCR5380_information_transfer()
1763 					if (NCR5380_transfer_dma(instance, &phase,  in NCR5380_information_transfer()
1783 					NCR5380_transfer_pio(instance, &phase, &len,  in NCR5380_information_transfer()
1797 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1834 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1864 					 * Restore phase bits to 0 so an interrupted selection,  in NCR5380_information_transfer()
1903 					phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1904 					NCR5380_transfer_pio(instance, &phase, &len, &data, 1);  in NCR5380_information_transfer()
1915 						phase = PHASE_MSGIN;  in NCR5380_information_transfer()
1917 						NCR5380_transfer_pio(instance, &phase, &len, &data, 1);  in NCR5380_information_transfer()
1964 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1982 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1988 				NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_information_transfer()
1992 				shost_printk(KERN_ERR, instance, "unknown phase\n");  in NCR5380_information_transfer()
1994 			} /* switch(phase) */  in NCR5380_information_transfer()
2072 			/* BUS FREE phase */  in NCR5380_reselect()
2089 		unsigned char phase = PHASE_MSGIN;  in NCR5380_reselect()  local
2091 		NCR5380_transfer_pio(instance, &phase, &len, &data, 0);  in NCR5380_reselect()