305 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in mesh_dump_regs()  local
311 	       ms, mr, md);  in mesh_dump_regs()
314 	       (mr->count_hi << 8) + mr->count_lo, mr->sequence,  in mesh_dump_regs()
315 	       (mr->bus_status1 << 8) + mr->bus_status0, mr->fifo_count,  in mesh_dump_regs()
316 	       mr->exception, mr->error, mr->intr_mask, mr->interrupt,  in mesh_dump_regs()
317 	       mr->sync_params);  in mesh_dump_regs()
318 	while(in_8(&mr->fifo_count))  in mesh_dump_regs()
319 		printk(KERN_DEBUG " fifo data=%.2x\n",in_8(&mr->fifo));  in mesh_dump_regs()
339 static inline void mesh_flush_io(volatile struct mesh_regs __iomem *mr)  in mesh_flush_io()  argument
341 	(void)in_8(&mr->mesh_id);  in mesh_flush_io()
351 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in mesh_init()  local
354 	mesh_flush_io(mr);  in mesh_init()
359 	out_8(&mr->exception, 0xff);	/* clear all exception bits */  in mesh_init()
360 	out_8(&mr->error, 0xff);	/* clear all error bits */  in mesh_init()
361 	out_8(&mr->sequence, SEQ_RESETMESH);  in mesh_init()
362 	mesh_flush_io(mr);  in mesh_init()
364 	out_8(&mr->intr_mask, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in mesh_init()
365 	out_8(&mr->source_id, ms->host->this_id);  in mesh_init()
366 	out_8(&mr->sel_timeout, 25);	/* 250ms */  in mesh_init()
367 	out_8(&mr->sync_params, ASYNC_PARAMS);  in mesh_init()
373 		out_8(&mr->bus_status1, BS1_RST);	/* assert RST */  in mesh_init()
374 		mesh_flush_io(mr);  in mesh_init()
376 		out_8(&mr->bus_status1, 0);	/* negate RST */  in mesh_init()
377 		mesh_flush_io(mr);  in mesh_init()
384 	out_8(&mr->interrupt, 0xff);	/* clear all interrupt bits */  in mesh_init()
385 	out_8(&mr->sequence, SEQ_FLUSHFIFO);  in mesh_init()
386 	mesh_flush_io(mr);  in mesh_init()
388 	out_8(&mr->sync_params, ASYNC_PARAMS);  in mesh_init()
389 	out_8(&mr->sequence, SEQ_ENBRESEL);  in mesh_init()
398 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in mesh_start_cmd()  local
437 	     MKWORD(mr->interrupt, mr->exception, mr->error, mr->fifo_count));  in mesh_start_cmd()
438 	out_8(&mr->interrupt, INT_CMDDONE);  in mesh_start_cmd()
439 	out_8(&mr->sequence, SEQ_ENBRESEL);  in mesh_start_cmd()
440 	mesh_flush_io(mr);  in mesh_start_cmd()
443 	if (in_8(&mr->bus_status1) & (BS1_BSY | BS1_SEL)) {  in mesh_start_cmd()
449 		     MKWORD(mr->interrupt, mr->exception,  in mesh_start_cmd()
450 			    mr->error, mr->fifo_count));  in mesh_start_cmd()
452 			if ((in_8(&mr->bus_status1) & (BS1_BSY | BS1_SEL)) == 0)  in mesh_start_cmd()
454 			if (in_8(&mr->interrupt) != 0) {  in mesh_start_cmd()
456 				     MKWORD(mr->interrupt, mr->exception,  in mesh_start_cmd()
457 					    mr->error, mr->fifo_count));  in mesh_start_cmd()
464 		if (in_8(&mr->bus_status1) & (BS1_BSY | BS1_SEL)) {  in mesh_start_cmd()
477 	out_8(&mr->dest_id, mr->source_id);  in mesh_start_cmd()
491 	out_8(&mr->sequence, SEQ_DISRESEL);  in mesh_start_cmd()
492 	if (in_8(&mr->interrupt) != 0) {  in mesh_start_cmd()
494 		     MKWORD(mr->interrupt, mr->exception,  in mesh_start_cmd()
495 			    mr->error, mr->fifo_count));  in mesh_start_cmd()
500 		     MKWORD(mr->interrupt, mr->exception,  in mesh_start_cmd()
501 			    mr->error, mr->fifo_count));  in mesh_start_cmd()
504 	out_8(&mr->sequence, SEQ_ARBITRATE);  in mesh_start_cmd()
507 		if (in_8(&mr->interrupt) != 0)  in mesh_start_cmd()
512 	     MKWORD(mr->interrupt, mr->exception, mr->error, mr->fifo_count));  in mesh_start_cmd()
513 	if (in_8(&mr->interrupt) == 0 && (in_8(&mr->bus_status1) & BS1_SEL)  in mesh_start_cmd()
514 	    && (in_8(&mr->bus_status0) & BS0_IO)) {  in mesh_start_cmd()
517 		     MKWORD(mr->interrupt, mr->exception, mr->error, mr->fifo_count));  in mesh_start_cmd()
518 		out_8(&mr->sequence, SEQ_RESETMESH);  in mesh_start_cmd()
519 		mesh_flush_io(mr);  in mesh_start_cmd()
521 		out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in mesh_start_cmd()
522 		out_8(&mr->intr_mask, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in mesh_start_cmd()
523 		out_8(&mr->sequence, SEQ_ENBRESEL);  in mesh_start_cmd()
524 		mesh_flush_io(mr);  in mesh_start_cmd()
525 		for (t = 10; t > 0 && in_8(&mr->interrupt) == 0; --t)  in mesh_start_cmd()
528 		     MKWORD(mr->interrupt, mr->exception, mr->error, mr->fifo_count));  in mesh_start_cmd()
530 		if (in_8(&mr->interrupt) == 0 && (in_8(&mr->bus_status1) & BS1_SEL)  in mesh_start_cmd()
531 		    && (in_8(&mr->bus_status0) & BS0_IO)) {  in mesh_start_cmd()
635 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in set_sdtr()  local
645 		out_8(&mr->sync_params, ASYNC_PARAMS);  in set_sdtr()
668 	out_8(&mr->sync_params, tp->sync_params);  in set_sdtr()
676 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in start_phase()  local
682 	     MKWORD(ms->n_msgout, mr->exception, mr->fifo_count, mr->sequence));  in start_phase()
683 	out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in start_phase()
690 		out_8(&mr->count_hi, 0);  in start_phase()
691 		out_8(&mr->count_lo, 1);  in start_phase()
692 		out_8(&mr->sequence, SEQ_MSGIN + seq);  in start_phase()
718 		out_8(&mr->count_hi, 0);  in start_phase()
719 		out_8(&mr->sequence, SEQ_FLUSHFIFO);  in start_phase()
720 		mesh_flush_io(mr);  in start_phase()
726 		if ((in_8(&mr->bus_status0) & BS0_ATN) == 0) {  in start_phase()
727 			dlog(ms, "bus0 was %.2x explicitly asserting ATN", mr->bus_status0);  in start_phase()
728 			out_8(&mr->bus_status0, BS0_ATN); /* explicit ATN */  in start_phase()
729 			mesh_flush_io(mr);  in start_phase()
731 			out_8(&mr->count_lo, 1);  in start_phase()
732 			out_8(&mr->sequence, SEQ_MSGOUT + seq);  in start_phase()
733 			out_8(&mr->bus_status0, 0); /* release explicit ATN */  in start_phase()
734 			dlog(ms,"hace: after explicit ATN bus0=%.2x",mr->bus_status0);  in start_phase()
745 			out_8(&mr->count_lo, ms->n_msgout - 1);  in start_phase()
746 			out_8(&mr->sequence, SEQ_MSGOUT + seq);  in start_phase()
748 				out_8(&mr->fifo, ms->msgout[i]);  in start_phase()
759 		out_8(&mr->dest_id, ms->conn_tgt);  in start_phase()
760 		out_8(&mr->sequence, SEQ_SELECT + SEQ_ATN);  in start_phase()
763 		out_8(&mr->sync_params, tp->sync_params);  in start_phase()
764 		out_8(&mr->count_hi, 0);  in start_phase()
766 			out_8(&mr->count_lo, cmd->cmd_len);  in start_phase()
767 			out_8(&mr->sequence, SEQ_COMMAND + seq);  in start_phase()
769 				out_8(&mr->fifo, cmd->cmnd[i]);  in start_phase()
771 			out_8(&mr->count_lo, 6);  in start_phase()
772 			out_8(&mr->sequence, SEQ_COMMAND + seq);  in start_phase()
774 				out_8(&mr->fifo, 0);  in start_phase()
790 		out_8(&mr->count_lo, nb);  in start_phase()
791 		out_8(&mr->count_hi, nb >> 8);  in start_phase()
792 		out_8(&mr->sequence, (tp->data_goes_out?  in start_phase()
796 		out_8(&mr->count_hi, 0);  in start_phase()
797 		out_8(&mr->count_lo, 1);  in start_phase()
798 		out_8(&mr->sequence, SEQ_STATUS + seq);  in start_phase()
802 		out_8(&mr->sequence, SEQ_ENBRESEL);  in start_phase()
803 		mesh_flush_io(mr);  in start_phase()
806 		     MKWORD(mr->interrupt, mr->exception, mr->error,  in start_phase()
807 			    mr->fifo_count));  in start_phase()
808 		out_8(&mr->sequence, SEQ_BUSFREE);  in start_phase()
820 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in get_msgin()  local
823 	n = mr->fifo_count;  in get_msgin()
828 			ms->msgin[i++] = in_8(&mr->fifo);  in get_msgin()
852 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in reselected()  local
898 	while ((in_8(&mr->bus_status1) & BS1_BSY) == 0) {  in reselected()
901 		out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in reselected()
902 		mesh_flush_io(mr);  in reselected()
904 		out_8(&mr->sequence, SEQ_ENBRESEL);  in reselected()
905 		mesh_flush_io(mr);  in reselected()
908 		     MKWORD(0, mr->error, mr->exception, mr->fifo_count));  in reselected()
910 	out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in reselected()
911        	mesh_flush_io(mr);  in reselected()
913 	out_8(&mr->sequence, SEQ_ENBRESEL);  in reselected()
914        	mesh_flush_io(mr);  in reselected()
916 	out_8(&mr->sync_params, ASYNC_PARAMS);  in reselected()
921 	if (in_8(&mr->fifo_count) == 0) {  in reselected()
928 		b = in_8(&mr->fifo);  in reselected()
930 	} while (in_8(&mr->fifo_count));  in reselected()
946 	out_8(&mr->sync_params, tp->sync_params);  in reselected()
959 	dlog(ms, "resel err/exc=%.4x", MKWORD(0, 0, mr->error, mr->exception));  in reselected()
985 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in handle_reset()  local
1005 	out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in handle_reset()
1006 	out_8(&mr->sequence, SEQ_FLUSHFIFO);  in handle_reset()
1007        	mesh_flush_io(mr);  in handle_reset()
1009 	out_8(&mr->sync_params, ASYNC_PARAMS);  in handle_reset()
1010 	out_8(&mr->sequence, SEQ_ENBRESEL);  in handle_reset()
1028 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in handle_error()  local
1030 	err = in_8(&mr->error);  in handle_error()
1031 	exc = in_8(&mr->exception);  in handle_error()
1032 	out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in handle_error()
1034 	     MKWORD(err, exc, mr->fifo_count, mr->count_lo));  in handle_error()
1039 		while ((in_8(&mr->bus_status1) & BS1_RST) != 0)  in handle_error()
1060 		out_8(&mr->interrupt, INT_CMDDONE);  in handle_error()
1080 		count = (mr->count_hi << 8) + mr->count_lo;  in handle_error()
1085 			out_8(&mr->sequence, mr->sequence);  in handle_error()
1111 	if (ms->phase > selecting && (in_8(&mr->bus_status1) & BS1_BSY)) {  in handle_error()
1124 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in handle_exception()  local
1126 	exc = in_8(&mr->exception);  in handle_exception()
1127 	out_8(&mr->interrupt, INT_EXCEPTION | INT_CMDDONE);  in handle_exception()
1318 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in halt_dma()  local
1325 		while (t > 0 && in_8(&mr->fifo_count) != 0  in halt_dma()
1332 	nb = (mr->count_hi << 8) + mr->count_lo;  in halt_dma()
1334 	     MKWORD(0, mr->fifo_count, 0, nb));  in halt_dma()
1336 		nb += mr->fifo_count;  in halt_dma()
1363 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in phase_mismatch()  local
1367 	     MKWORD(mr->count_hi, mr->count_lo, mr->sequence, mr->fifo_count));  in phase_mismatch()
1368 	phase = in_8(&mr->bus_status0) & BS0_PHASE;  in phase_mismatch()
1371 		out_8(&mr->count_lo, 1);  in phase_mismatch()
1372 		out_8(&mr->sequence, SEQ_MSGOUT + use_active_neg);  in phase_mismatch()
1373 		mesh_flush_io(mr);  in phase_mismatch()
1375 		out_8(&mr->fifo, ms->msgout[ms->n_msgout-1]);  in phase_mismatch()
1388 	if (mr->fifo_count) {  in phase_mismatch()
1389 		out_8(&mr->sequence, SEQ_FLUSHFIFO);  in phase_mismatch()
1390 		mesh_flush_io(mr);  in phase_mismatch()
1442 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in cmd_complete()  local
1447 	dlog(ms, "cmd_complete fc=%x", mr->fifo_count);  in cmd_complete()
1461 			out_8(&mr->count_lo, n - ms->n_msgin);  in cmd_complete()
1462 			out_8(&mr->sequence, SEQ_MSGIN + seq);  in cmd_complete()
1471 		out_8(&mr->sequence, SEQ_FLUSHFIFO);  in cmd_complete()
1472 		mesh_flush_io(mr);  in cmd_complete()
1474 		out_8(&mr->count_lo, 1);  in cmd_complete()
1475 		out_8(&mr->sequence, SEQ_MSGIN + SEQ_ATN + use_active_neg);  in cmd_complete()
1490 		out_8(&mr->count_lo, 1);  in cmd_complete()
1491 		out_8(&mr->sequence, SEQ_MSGOUT + use_active_neg + SEQ_ATN);  in cmd_complete()
1493 		while ((in_8(&mr->bus_status0) & BS0_REQ) == 0 && --t >= 0)  in cmd_complete()
1496 		     MKWORD(mr->error, mr->exception,  in cmd_complete()
1497 			    mr->fifo_count, mr->count_lo));  in cmd_complete()
1498 		if (in_8(&mr->interrupt) & (INT_ERROR | INT_EXCEPTION)) {  in cmd_complete()
1502 			if (in_8(&mr->interrupt) & INT_ERROR) {  in cmd_complete()
1504 				       in_8(&mr->error));  in cmd_complete()
1508 			if (in_8(&mr->exception) != EXC_PHASEMM)  in cmd_complete()
1510 				       in_8(&mr->exception));  in cmd_complete()
1513 				       in_8(&mr->bus_status0));  in cmd_complete()
1517 		if (in_8(&mr->bus_status0) & BS0_REQ) {  in cmd_complete()
1518 			out_8(&mr->sequence, SEQ_MSGOUT + use_active_neg);  in cmd_complete()
1519 			mesh_flush_io(mr);  in cmd_complete()
1521 			out_8(&mr->fifo, ms->msgout[ms->n_msgout-1]);  in cmd_complete()
1524 			out_8(&mr->sequence, SEQ_MSGIN + use_active_neg + SEQ_ATN);  in cmd_complete()
1566 			while ((in_8(&mr->bus_status0) & BS0_REQ) == 0) {  in cmd_complete()
1590 			out_8(&mr->sequence, 0);  in cmd_complete()
1591 			out_8(&mr->interrupt,  in cmd_complete()
1599 				mcmd->status = mr->fifo;  in cmd_complete()
1657 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in DEF_SCSI_QCMD()  local
1663 		       "phase=%d msgphase=%d\n", mr->bus_status0,  in DEF_SCSI_QCMD()
1664 		       mr->interrupt, mr->exception, mr->error,  in DEF_SCSI_QCMD()
1667 	while ((intr = in_8(&mr->interrupt)) != 0) {  in DEF_SCSI_QCMD()
1669 		     MKWORD(intr, mr->error, mr->exception, mr->sequence));  in DEF_SCSI_QCMD()
1675 			out_8(&mr->interrupt, INT_CMDDONE);  in DEF_SCSI_QCMD()
1705 	volatile struct mesh_regs __iomem *mr = ms->mesh;  in mesh_host_reset()  local
1718 	out_8(&mr->exception, 0xff);	/* clear all exception bits */  in mesh_host_reset()
1719 	out_8(&mr->error, 0xff);	/* clear all error bits */  in mesh_host_reset()
1720 	out_8(&mr->sequence, SEQ_RESETMESH);  in mesh_host_reset()
1721        	mesh_flush_io(mr);  in mesh_host_reset()
1723 	out_8(&mr->intr_mask, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in mesh_host_reset()
1724 	out_8(&mr->source_id, ms->host->this_id);  in mesh_host_reset()
1725 	out_8(&mr->sel_timeout, 25);	/* 250ms */  in mesh_host_reset()
1726 	out_8(&mr->sync_params, ASYNC_PARAMS);  in mesh_host_reset()
1729 	out_8(&mr->bus_status1, BS1_RST);	/* assert RST */  in mesh_host_reset()
1730        	mesh_flush_io(mr);  in mesh_host_reset()
1732 	out_8(&mr->bus_status1, 0);	/* negate RST */  in mesh_host_reset()
1816 	volatile struct mesh_regs __iomem *mr;  in mesh_shutdown()  local
1821        	mr = ms->mesh;  in mesh_shutdown()
1822 	out_8(&mr->intr_mask, 0);  in mesh_shutdown()
1823 	out_8(&mr->interrupt, INT_ERROR | INT_EXCEPTION | INT_CMDDONE);  in mesh_shutdown()
1824 	out_8(&mr->bus_status1, BS1_RST);  in mesh_shutdown()
1825 	mesh_flush_io(mr);  in mesh_shutdown()
1827 	out_8(&mr->bus_status1, 0);  in mesh_shutdown()