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116#include <linux/module.h>
117#include <linux/blkdev.h>
118#include <linux/interrupt.h>
119#include <linux/string.h>
120#include <linux/delay.h>
121#include <linux/proc_fs.h>
122#include <linux/ioport.h>
123#include <linux/stat.h>
124
125#include <asm/io.h>
126#include <asm/system.h>
127
128#include "scsi.h"
129#include <scsi/scsi_host.h>
130
131#define IN2000_VERSION "1.33-2.5"
132#define IN2000_DATE "2002/11/03"
133
134#include "in2000.h"
135
136
137
138
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182
183
184static char *setup_args[] = { "", "", "", "", "", "", "", "", "" };
185
186
187static char *setup_strings;
188
189module_param(setup_strings, charp, 0);
190
191static inline uchar read_3393(struct IN2000_hostdata *hostdata, uchar reg_num)
192{
193 write1_io(reg_num, IO_WD_ADDR);
194 return read1_io(IO_WD_DATA);
195}
196
197
198#define READ_AUX_STAT() read1_io(IO_WD_ASR)
199
200
201static inline void write_3393(struct IN2000_hostdata *hostdata, uchar reg_num, uchar value)
202{
203 write1_io(reg_num, IO_WD_ADDR);
204 write1_io(value, IO_WD_DATA);
205}
206
207
208static inline void write_3393_cmd(struct IN2000_hostdata *hostdata, uchar cmd)
209{
210
211
212 write1_io(WD_COMMAND, IO_WD_ADDR);
213 write1_io(cmd, IO_WD_DATA);
214}
215
216
217static uchar read_1_byte(struct IN2000_hostdata *hostdata)
218{
219 uchar asr, x = 0;
220
221 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
222 write_3393_cmd(hostdata, WD_CMD_TRANS_INFO | 0x80);
223 do {
224 asr = READ_AUX_STAT();
225 if (asr & ASR_DBR)
226 x = read_3393(hostdata, WD_DATA);
227 } while (!(asr & ASR_INT));
228 return x;
229}
230
231
232static void write_3393_count(struct IN2000_hostdata *hostdata, unsigned long value)
233{
234 write1_io(WD_TRANSFER_COUNT_MSB, IO_WD_ADDR);
235 write1_io((value >> 16), IO_WD_DATA);
236 write1_io((value >> 8), IO_WD_DATA);
237 write1_io(value, IO_WD_DATA);
238}
239
240
241static unsigned long read_3393_count(struct IN2000_hostdata *hostdata)
242{
243 unsigned long value;
244
245 write1_io(WD_TRANSFER_COUNT_MSB, IO_WD_ADDR);
246 value = read1_io(IO_WD_DATA) << 16;
247 value |= read1_io(IO_WD_DATA) << 8;
248 value |= read1_io(IO_WD_DATA);
249 return value;
250}
251
252
253
254
255
256
257
258static int is_dir_out(Scsi_Cmnd * cmd)
259{
260 switch (cmd->cmnd[0]) {
261 case WRITE_6:
262 case WRITE_10:
263 case WRITE_12:
264 case WRITE_LONG:
265 case WRITE_SAME:
266 case WRITE_BUFFER:
267 case WRITE_VERIFY:
268 case WRITE_VERIFY_12:
269 case COMPARE:
270 case COPY:
271 case COPY_VERIFY:
272 case SEARCH_EQUAL:
273 case SEARCH_HIGH:
274 case SEARCH_LOW:
275 case SEARCH_EQUAL_12:
276 case SEARCH_HIGH_12:
277 case SEARCH_LOW_12:
278 case FORMAT_UNIT:
279 case REASSIGN_BLOCKS:
280 case RESERVE:
281 case MODE_SELECT:
282 case MODE_SELECT_10:
283 case LOG_SELECT:
284 case SEND_DIAGNOSTIC:
285 case CHANGE_DEFINITION:
286 case UPDATE_BLOCK:
287 case SET_WINDOW:
288 case MEDIUM_SCAN:
289 case SEND_VOLUME_TAG:
290 case 0xea:
291 return 1;
292 default:
293 return 0;
294 }
295}
296
297
298
299static struct sx_period sx_table[] = {
300 {1, 0x20},
301 {252, 0x20},
302 {376, 0x30},
303 {500, 0x40},
304 {624, 0x50},
305 {752, 0x60},
306 {876, 0x70},
307 {1000, 0x00},
308 {0, 0}
309};
310
311static int round_period(unsigned int period)
312{
313 int x;
314
315 for (x = 1; sx_table[x].period_ns; x++) {
316 if ((period <= sx_table[x - 0].period_ns) && (period > sx_table[x - 1].period_ns)) {
317 return x;
318 }
319 }
320 return 7;
321}
322
323static uchar calc_sync_xfer(unsigned int period, unsigned int offset)
324{
325 uchar result;
326
327 period *= 4;
328 result = sx_table[round_period(period)].reg_value;
329 result |= (offset < OPTIMUM_SX_OFF) ? offset : OPTIMUM_SX_OFF;
330 return result;
331}
332
333
334
335static void in2000_execute(struct Scsi_Host *instance);
336
337static int in2000_queuecommand_lck(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
338{
339 struct Scsi_Host *instance;
340 struct IN2000_hostdata *hostdata;
341 Scsi_Cmnd *tmp;
342
343 instance = cmd->device->host;
344 hostdata = (struct IN2000_hostdata *) instance->hostdata;
345
346 DB(DB_QUEUE_COMMAND, scmd_printk(KERN_DEBUG, cmd, "Q-%02x(", cmd->cmnd[0]))
347
348
349
350
351
352
353 cmd->host_scribble = NULL;
354 cmd->scsi_done = done;
355 cmd->result = 0;
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372 if (scsi_bufflen(cmd)) {
373 cmd->SCp.buffer = scsi_sglist(cmd);
374 cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
375 cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
376 cmd->SCp.this_residual = cmd->SCp.buffer->length;
377 } else {
378 cmd->SCp.buffer = NULL;
379 cmd->SCp.buffers_residual = 0;
380 cmd->SCp.ptr = NULL;
381 cmd->SCp.this_residual = 0;
382 }
383 cmd->SCp.have_data_in = 0;
384
385
386
387
388
389
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391
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402
403
404 cmd->SCp.Status = ILLEGAL_STATUS_BYTE;
405
406
407
408
409
410
411
412
413
414
415
416 if (!(hostdata->input_Q) || (cmd->cmnd[0] == REQUEST_SENSE)) {
417 cmd->host_scribble = (uchar *) hostdata->input_Q;
418 hostdata->input_Q = cmd;
419 } else {
420 for (tmp = (Scsi_Cmnd *) hostdata->input_Q; tmp->host_scribble; tmp = (Scsi_Cmnd *) tmp->host_scribble);
421 tmp->host_scribble = (uchar *) cmd;
422 }
423
424
425
426
427
428 in2000_execute(cmd->device->host);
429
430 DB(DB_QUEUE_COMMAND, printk(")Q "))
431 return 0;
432}
433
434static DEF_SCSI_QCMD(in2000_queuecommand)
435
436
437
438
439
440
441
442
443
444
445
446static void in2000_execute(struct Scsi_Host *instance)
447{
448 struct IN2000_hostdata *hostdata;
449 Scsi_Cmnd *cmd, *prev;
450 int i;
451 unsigned short *sp;
452 unsigned short f;
453 unsigned short flushbuf[16];
454
455
456 hostdata = (struct IN2000_hostdata *) instance->hostdata;
457
458 DB(DB_EXECUTE, printk("EX("))
459
460 if (hostdata->selecting || hostdata->connected) {
461
462 DB(DB_EXECUTE, printk(")EX-0 "))
463
464 return;
465 }
466
467
468
469
470
471
472 cmd = (Scsi_Cmnd *) hostdata->input_Q;
473 prev = NULL;
474 while (cmd) {
475 if (!(hostdata->busy[cmd->device->id] & (1 << cmd->device->lun)))
476 break;
477 prev = cmd;
478 cmd = (Scsi_Cmnd *) cmd->host_scribble;
479 }
480
481
482
483 if (!cmd) {
484
485 DB(DB_EXECUTE, printk(")EX-1 "))
486
487 return;
488 }
489
490
491
492 if (prev)
493 prev->host_scribble = cmd->host_scribble;
494 else
495 hostdata->input_Q = (Scsi_Cmnd *) cmd->host_scribble;
496
497#ifdef PROC_STATISTICS
498 hostdata->cmd_cnt[cmd->device->id]++;
499#endif
500
501
502
503
504
505 if (is_dir_out(cmd))
506 write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id);
507 else
508 write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id | DSTID_DPD);
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531
532
533 cmd->SCp.phase = 0;
534 if (hostdata->disconnect == DIS_NEVER)
535 goto no;
536 if (hostdata->disconnect == DIS_ALWAYS)
537 goto yes;
538 if (cmd->device->type == 1)
539 goto yes;
540 if (hostdata->disconnected_Q)
541 goto yes;
542 if (!(hostdata->input_Q))
543 goto no;
544 for (prev = (Scsi_Cmnd *) hostdata->input_Q; prev; prev = (Scsi_Cmnd *) prev->host_scribble) {
545 if ((prev->device->id != cmd->device->id) || (prev->device->lun != cmd->device->lun)) {
546 for (prev = (Scsi_Cmnd *) hostdata->input_Q; prev; prev = (Scsi_Cmnd *) prev->host_scribble)
547 prev->SCp.phase = 1;
548 goto yes;
549 }
550 }
551 goto no;
552
553 yes:
554 cmd->SCp.phase = 1;
555
556#ifdef PROC_STATISTICS
557 hostdata->disc_allowed_cnt[cmd->device->id]++;
558#endif
559
560 no:
561 write_3393(hostdata, WD_SOURCE_ID, ((cmd->SCp.phase) ? SRCID_ER : 0));
562
563 write_3393(hostdata, WD_TARGET_LUN, cmd->device->lun);
564 write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, hostdata->sync_xfer[cmd->device->id]);
565 hostdata->busy[cmd->device->id] |= (1 << cmd->device->lun);
566
567 if ((hostdata->level2 <= L2_NONE) || (hostdata->sync_stat[cmd->device->id] == SS_UNSET)) {
568
569
570
571
572
573
574
575
576
577 hostdata->selecting = cmd;
578
579
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581
582
583
584
585
586
587
588
589 if (hostdata->sync_stat[cmd->device->id] == SS_UNSET) {
590 if (hostdata->sync_off & (1 << cmd->device->id))
591 hostdata->sync_stat[cmd->device->id] = SS_SET;
592 else
593 hostdata->sync_stat[cmd->device->id] = SS_FIRST;
594 }
595 hostdata->state = S_SELECTING;
596 write_3393_count(hostdata, 0);
597 write_3393_cmd(hostdata, WD_CMD_SEL_ATN);
598 }
599
600 else {
601
602
603
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605
606
607
608
609
610 hostdata->connected = cmd;
611 write_3393(hostdata, WD_COMMAND_PHASE, 0);
612
613
614
615
616
617 write1_io(WD_CDB_1, IO_WD_ADDR);
618 for (i = 0; i < cmd->cmd_len; i++)
619 write1_io(cmd->cmnd[i], IO_WD_DATA);
620
621
622
623
624
625
626
627 write_3393(hostdata, WD_OWN_ID, cmd->cmd_len);
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645
646
647 if (!(cmd->SCp.phase)) {
648 write_3393_count(hostdata, cmd->SCp.this_residual);
649 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_BUS);
650 write1_io(0, IO_FIFO_WRITE);
651
652 if (is_dir_out(cmd)) {
653 hostdata->fifo = FI_FIFO_WRITING;
654 if ((i = cmd->SCp.this_residual) > (IN2000_FIFO_SIZE - 16))
655 i = IN2000_FIFO_SIZE - 16;
656 cmd->SCp.have_data_in = i;
657 i >>= 1;
658 sp = (unsigned short *) cmd->SCp.ptr;
659 f = hostdata->io_base + IO_FIFO;
660
661#ifdef FAST_WRITE_IO
662
663 FAST_WRITE2_IO();
664#else
665 while (i--)
666 write2_io(*sp++, IO_FIFO);
667
668#endif
669
670
671
672 if (cmd->SCp.have_data_in <= ((IN2000_FIFO_SIZE - 16) - 32)) {
673 sp = flushbuf;
674 i = 16;
675
676#ifdef FAST_WRITE_IO
677
678 FAST_WRITE2_IO();
679#else
680 while (i--)
681 write2_io(0, IO_FIFO);
682
683#endif
684
685 }
686 }
687
688 else {
689 write1_io(0, IO_FIFO_READ);
690 hostdata->fifo = FI_FIFO_READING;
691 cmd->SCp.have_data_in = 0;
692 }
693
694 } else {
695 write_3393_count(hostdata, 0);
696 }
697 hostdata->state = S_RUNNING_LEVEL2;
698 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
699 }
700
701
702
703
704
705
706
707
708 DB(DB_EXECUTE, printk("%s)EX-2 ", (cmd->SCp.phase) ? "d:" : ""))
709
710}
711
712
713
714static void transfer_pio(uchar * buf, int cnt, int data_in_dir, struct IN2000_hostdata *hostdata)
715{
716 uchar asr;
717
718 DB(DB_TRANSFER, printk("(%p,%d,%s)", buf, cnt, data_in_dir ? "in" : "out"))
719
720 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
721 write_3393_count(hostdata, cnt);
722 write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
723 if (data_in_dir) {
724 do {
725 asr = READ_AUX_STAT();
726 if (asr & ASR_DBR)
727 *buf++ = read_3393(hostdata, WD_DATA);
728 } while (!(asr & ASR_INT));
729 } else {
730 do {
731 asr = READ_AUX_STAT();
732 if (asr & ASR_DBR)
733 write_3393(hostdata, WD_DATA, *buf++);
734 } while (!(asr & ASR_INT));
735 }
736
737
738
739
740
741
742
743
744}
745
746
747
748static void transfer_bytes(Scsi_Cmnd * cmd, int data_in_dir)
749{
750 struct IN2000_hostdata *hostdata;
751 unsigned short *sp;
752 unsigned short f;
753 int i;
754
755 hostdata = (struct IN2000_hostdata *) cmd->device->host->hostdata;
756
757
758
759
760
761
762
763
764
765 if (!cmd->SCp.this_residual && cmd->SCp.buffers_residual) {
766 ++cmd->SCp.buffer;
767 --cmd->SCp.buffers_residual;
768 cmd->SCp.this_residual = cmd->SCp.buffer->length;
769 cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
770 }
771
772
773
774 write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, hostdata->sync_xfer[cmd->device->id]);
775 write_3393_count(hostdata, cmd->SCp.this_residual);
776 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_BUS);
777 write1_io(0, IO_FIFO_WRITE);
778
779
780
781
782
783 if (data_in_dir) {
784 write1_io(0, IO_FIFO_READ);
785 if ((hostdata->level2 >= L2_DATA) || (hostdata->level2 == L2_BASIC && cmd->SCp.phase == 0)) {
786 write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
787 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
788 hostdata->state = S_RUNNING_LEVEL2;
789 } else
790 write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
791 hostdata->fifo = FI_FIFO_READING;
792 cmd->SCp.have_data_in = 0;
793 return;
794 }
795
796
797
798
799
800
801 if ((hostdata->level2 >= L2_DATA) || (hostdata->level2 == L2_BASIC && cmd->SCp.phase == 0)) {
802 write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
803 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
804 hostdata->state = S_RUNNING_LEVEL2;
805 } else
806 write_3393_cmd(hostdata, WD_CMD_TRANS_INFO);
807 hostdata->fifo = FI_FIFO_WRITING;
808 sp = (unsigned short *) cmd->SCp.ptr;
809
810 if ((i = cmd->SCp.this_residual) > IN2000_FIFO_SIZE)
811 i = IN2000_FIFO_SIZE;
812 cmd->SCp.have_data_in = i;
813 i >>= 1;
814 f = hostdata->io_base + IO_FIFO;
815
816#ifdef FAST_WRITE_IO
817
818 FAST_WRITE2_IO();
819#else
820 while (i--)
821 write2_io(*sp++, IO_FIFO);
822
823#endif
824
825}
826
827
828
829
830
831
832
833
834static irqreturn_t in2000_intr(int irqnum, void *dev_id)
835{
836 struct Scsi_Host *instance = dev_id;
837 struct IN2000_hostdata *hostdata;
838 Scsi_Cmnd *patch, *cmd;
839 uchar asr, sr, phs, id, lun, *ucp, msg;
840 int i, j;
841 unsigned long length;
842 unsigned short *sp;
843 unsigned short f;
844 unsigned long flags;
845
846 hostdata = (struct IN2000_hostdata *) instance->hostdata;
847
848
849
850 spin_lock_irqsave(instance->host_lock, flags);
851
852#ifdef PROC_STATISTICS
853 hostdata->int_cnt++;
854#endif
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891 write1_io(0, IO_LED_ON);
892 asr = READ_AUX_STAT();
893 if (!(asr & ASR_INT)) {
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914 cmd = (Scsi_Cmnd *) hostdata->connected;
915 CHECK_NULL(cmd, "fifo_int")
916
917 if (hostdata->fifo == FI_FIFO_READING) {
918
919 DB(DB_FIFO, printk("{R:%02x} ", read1_io(IO_FIFO_COUNT)))
920
921 sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
922 i = read1_io(IO_FIFO_COUNT) & 0xfe;
923 i <<= 2;
924 f = hostdata->io_base + IO_FIFO;
925
926#ifdef FAST_READ_IO
927
928 FAST_READ2_IO();
929#else
930 while (i--)
931 *sp++ = read2_io(IO_FIFO);
932
933#endif
934
935 i = sp - (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
936 i <<= 1;
937 cmd->SCp.have_data_in += i;
938 }
939
940 else if (hostdata->fifo == FI_FIFO_WRITING) {
941
942 DB(DB_FIFO, printk("{W:%02x} ", read1_io(IO_FIFO_COUNT)))
943
944
945
946
947
948
949
950
951
952
953
954 if (cmd->SCp.this_residual == cmd->SCp.have_data_in) {
955 i = 16;
956 while (i--)
957 write2_io(0, IO_FIFO);
958 }
959
960
961
962
963
964 else {
965 sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
966 i = cmd->SCp.this_residual - cmd->SCp.have_data_in;
967 j = read1_io(IO_FIFO_COUNT) & 0xfe;
968 j <<= 2;
969 if ((j << 1) > i)
970 j = (i >> 1);
971 while (j--)
972 write2_io(*sp++, IO_FIFO);
973
974 i = sp - (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
975 i <<= 1;
976 cmd->SCp.have_data_in += i;
977 }
978 }
979
980 else {
981 printk("*** Spurious FIFO interrupt ***");
982 }
983
984 write1_io(0, IO_LED_OFF);
985
986
987 spin_unlock_irqrestore(instance->host_lock, flags);
988 return IRQ_HANDLED;
989 }
990
991
992
993
994
995
996 cmd = (Scsi_Cmnd *) hostdata->connected;
997 sr = read_3393(hostdata, WD_SCSI_STATUS);
998 phs = read_3393(hostdata, WD_COMMAND_PHASE);
999
1000 if (!cmd && (sr != CSR_RESEL_AM && sr != CSR_TIMEOUT && sr != CSR_SELECT)) {
1001 printk("\nNR:wd-intr-1\n");
1002 write1_io(0, IO_LED_OFF);
1003
1004
1005 spin_unlock_irqrestore(instance->host_lock, flags);
1006 return IRQ_HANDLED;
1007 }
1008
1009 DB(DB_INTR, printk("{%02x:%02x-", asr, sr))
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023 if (hostdata->fifo == FI_FIFO_READING) {
1024
1025
1026
1027 sp = (unsigned short *) (cmd->SCp.ptr + cmd->SCp.have_data_in);
1028
1029
1030
1031 i = (cmd->SCp.this_residual - read_3393_count(hostdata)) - cmd->SCp.have_data_in;
1032 i >>= 1;
1033 f = hostdata->io_base + IO_FIFO;
1034
1035#ifdef FAST_READ_IO
1036
1037 FAST_READ2_IO();
1038#else
1039 while (i--)
1040 *sp++ = read2_io(IO_FIFO);
1041
1042#endif
1043
1044 hostdata->fifo = FI_FIFO_UNUSED;
1045 length = cmd->SCp.this_residual;
1046 cmd->SCp.this_residual = read_3393_count(hostdata);
1047 cmd->SCp.ptr += (length - cmd->SCp.this_residual);
1048
1049 DB(DB_TRANSFER, printk("(%p,%d)", cmd->SCp.ptr, cmd->SCp.this_residual))
1050
1051 }
1052
1053 else if (hostdata->fifo == FI_FIFO_WRITING) {
1054 hostdata->fifo = FI_FIFO_UNUSED;
1055 length = cmd->SCp.this_residual;
1056 cmd->SCp.this_residual = read_3393_count(hostdata);
1057 cmd->SCp.ptr += (length - cmd->SCp.this_residual);
1058
1059 DB(DB_TRANSFER, printk("(%p,%d)", cmd->SCp.ptr, cmd->SCp.this_residual))
1060
1061 }
1062
1063
1064
1065 switch (sr) {
1066
1067 case CSR_TIMEOUT:
1068 DB(DB_INTR, printk("TIMEOUT"))
1069
1070 if (hostdata->state == S_RUNNING_LEVEL2)
1071 hostdata->connected = NULL;
1072 else {
1073 cmd = (Scsi_Cmnd *) hostdata->selecting;
1074 CHECK_NULL(cmd, "csr_timeout")
1075 hostdata->selecting = NULL;
1076 }
1077
1078 cmd->result = DID_NO_CONNECT << 16;
1079 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1080 hostdata->state = S_UNCONNECTED;
1081 cmd->scsi_done(cmd);
1082
1083
1084
1085
1086
1087 in2000_execute(instance);
1088 break;
1089
1090
1091
1092
1093 case CSR_SELECT:
1094 DB(DB_INTR, printk("SELECT"))
1095 hostdata->connected = cmd = (Scsi_Cmnd *) hostdata->selecting;
1096 CHECK_NULL(cmd, "csr_select")
1097 hostdata->selecting = NULL;
1098
1099
1100
1101 hostdata->outgoing_msg[0] = (0x80 | 0x00 | cmd->device->lun);
1102 if (cmd->SCp.phase)
1103 hostdata->outgoing_msg[0] |= 0x40;
1104
1105 if (hostdata->sync_stat[cmd->device->id] == SS_FIRST) {
1106#ifdef SYNC_DEBUG
1107 printk(" sending SDTR ");
1108#endif
1109
1110 hostdata->sync_stat[cmd->device->id] = SS_WAITING;
1111
1112
1113
1114 hostdata->outgoing_msg[1] = EXTENDED_MESSAGE;
1115 hostdata->outgoing_msg[2] = 3;
1116 hostdata->outgoing_msg[3] = EXTENDED_SDTR;
1117 hostdata->outgoing_msg[4] = OPTIMUM_SX_PER / 4;
1118 hostdata->outgoing_msg[5] = OPTIMUM_SX_OFF;
1119 hostdata->outgoing_len = 6;
1120 } else
1121 hostdata->outgoing_len = 1;
1122
1123 hostdata->state = S_CONNECTED;
1124 break;
1125
1126
1127 case CSR_XFER_DONE | PHS_DATA_IN:
1128 case CSR_UNEXP | PHS_DATA_IN:
1129 case CSR_SRV_REQ | PHS_DATA_IN:
1130 DB(DB_INTR, printk("IN-%d.%d", cmd->SCp.this_residual, cmd->SCp.buffers_residual))
1131 transfer_bytes(cmd, DATA_IN_DIR);
1132 if (hostdata->state != S_RUNNING_LEVEL2)
1133 hostdata->state = S_CONNECTED;
1134 break;
1135
1136
1137 case CSR_XFER_DONE | PHS_DATA_OUT:
1138 case CSR_UNEXP | PHS_DATA_OUT:
1139 case CSR_SRV_REQ | PHS_DATA_OUT:
1140 DB(DB_INTR, printk("OUT-%d.%d", cmd->SCp.this_residual, cmd->SCp.buffers_residual))
1141 transfer_bytes(cmd, DATA_OUT_DIR);
1142 if (hostdata->state != S_RUNNING_LEVEL2)
1143 hostdata->state = S_CONNECTED;
1144 break;
1145
1146
1147
1148
1149 case CSR_XFER_DONE | PHS_COMMAND:
1150 case CSR_UNEXP | PHS_COMMAND:
1151 case CSR_SRV_REQ | PHS_COMMAND:
1152 DB(DB_INTR, printk("CMND-%02x", cmd->cmnd[0]))
1153 transfer_pio(cmd->cmnd, cmd->cmd_len, DATA_OUT_DIR, hostdata);
1154 hostdata->state = S_CONNECTED;
1155 break;
1156
1157
1158 case CSR_XFER_DONE | PHS_STATUS:
1159 case CSR_UNEXP | PHS_STATUS:
1160 case CSR_SRV_REQ | PHS_STATUS:
1161 DB(DB_INTR, printk("STATUS="))
1162
1163 cmd->SCp.Status = read_1_byte(hostdata);
1164 DB(DB_INTR, printk("%02x", cmd->SCp.Status))
1165 if (hostdata->level2 >= L2_BASIC) {
1166 sr = read_3393(hostdata, WD_SCSI_STATUS);
1167 hostdata->state = S_RUNNING_LEVEL2;
1168 write_3393(hostdata, WD_COMMAND_PHASE, 0x50);
1169 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
1170 } else {
1171 hostdata->state = S_CONNECTED;
1172 }
1173 break;
1174
1175
1176 case CSR_XFER_DONE | PHS_MESS_IN:
1177 case CSR_UNEXP | PHS_MESS_IN:
1178 case CSR_SRV_REQ | PHS_MESS_IN:
1179 DB(DB_INTR, printk("MSG_IN="))
1180
1181 msg = read_1_byte(hostdata);
1182 sr = read_3393(hostdata, WD_SCSI_STATUS);
1183
1184 hostdata->incoming_msg[hostdata->incoming_ptr] = msg;
1185 if (hostdata->incoming_msg[0] == EXTENDED_MESSAGE)
1186 msg = EXTENDED_MESSAGE;
1187 else
1188 hostdata->incoming_ptr = 0;
1189
1190 cmd->SCp.Message = msg;
1191 switch (msg) {
1192
1193 case COMMAND_COMPLETE:
1194 DB(DB_INTR, printk("CCMP"))
1195 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1196 hostdata->state = S_PRE_CMP_DISC;
1197 break;
1198
1199 case SAVE_POINTERS:
1200 DB(DB_INTR, printk("SDP"))
1201 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1202 hostdata->state = S_CONNECTED;
1203 break;
1204
1205 case RESTORE_POINTERS:
1206 DB(DB_INTR, printk("RDP"))
1207 if (hostdata->level2 >= L2_BASIC) {
1208 write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
1209 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
1210 hostdata->state = S_RUNNING_LEVEL2;
1211 } else {
1212 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1213 hostdata->state = S_CONNECTED;
1214 }
1215 break;
1216
1217 case DISCONNECT:
1218 DB(DB_INTR, printk("DIS"))
1219 cmd->device->disconnect = 1;
1220 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1221 hostdata->state = S_PRE_TMP_DISC;
1222 break;
1223
1224 case MESSAGE_REJECT:
1225 DB(DB_INTR, printk("REJ"))
1226#ifdef SYNC_DEBUG
1227 printk("-REJ-");
1228#endif
1229 if (hostdata->sync_stat[cmd->device->id] == SS_WAITING)
1230 hostdata->sync_stat[cmd->device->id] = SS_SET;
1231 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1232 hostdata->state = S_CONNECTED;
1233 break;
1234
1235 case EXTENDED_MESSAGE:
1236 DB(DB_INTR, printk("EXT"))
1237
1238 ucp = hostdata->incoming_msg;
1239
1240#ifdef SYNC_DEBUG
1241 printk("%02x", ucp[hostdata->incoming_ptr]);
1242#endif
1243
1244
1245 if ((hostdata->incoming_ptr >= 2) && (hostdata->incoming_ptr == (ucp[1] + 1))) {
1246
1247 switch (ucp[2]) {
1248 case EXTENDED_SDTR:
1249 id = calc_sync_xfer(ucp[3], ucp[4]);
1250 if (hostdata->sync_stat[cmd->device->id] != SS_WAITING) {
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261 write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN);
1262 hostdata->outgoing_msg[0] = EXTENDED_MESSAGE;
1263 hostdata->outgoing_msg[1] = 3;
1264 hostdata->outgoing_msg[2] = EXTENDED_SDTR;
1265 hostdata->outgoing_msg[3] = hostdata->default_sx_per / 4;
1266 hostdata->outgoing_msg[4] = 0;
1267 hostdata->outgoing_len = 5;
1268 hostdata->sync_xfer[cmd->device->id] = calc_sync_xfer(hostdata->default_sx_per / 4, 0);
1269 } else {
1270 hostdata->sync_xfer[cmd->device->id] = id;
1271 }
1272#ifdef SYNC_DEBUG
1273 printk("sync_xfer=%02x", hostdata->sync_xfer[cmd->device->id]);
1274#endif
1275 hostdata->sync_stat[cmd->device->id] = SS_SET;
1276 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1277 hostdata->state = S_CONNECTED;
1278 break;
1279 case EXTENDED_WDTR:
1280 write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN);
1281 printk("sending WDTR ");
1282 hostdata->outgoing_msg[0] = EXTENDED_MESSAGE;
1283 hostdata->outgoing_msg[1] = 2;
1284 hostdata->outgoing_msg[2] = EXTENDED_WDTR;
1285 hostdata->outgoing_msg[3] = 0;
1286 hostdata->outgoing_len = 4;
1287 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1288 hostdata->state = S_CONNECTED;
1289 break;
1290 default:
1291 write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN);
1292 printk("Rejecting Unknown Extended Message(%02x). ", ucp[2]);
1293 hostdata->outgoing_msg[0] = MESSAGE_REJECT;
1294 hostdata->outgoing_len = 1;
1295 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1296 hostdata->state = S_CONNECTED;
1297 break;
1298 }
1299 hostdata->incoming_ptr = 0;
1300 }
1301
1302
1303
1304 else {
1305 hostdata->incoming_ptr++;
1306 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1307 hostdata->state = S_CONNECTED;
1308 }
1309 break;
1310
1311 default:
1312 printk("Rejecting Unknown Message(%02x) ", msg);
1313 write_3393_cmd(hostdata, WD_CMD_ASSERT_ATN);
1314 hostdata->outgoing_msg[0] = MESSAGE_REJECT;
1315 hostdata->outgoing_len = 1;
1316 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1317 hostdata->state = S_CONNECTED;
1318 }
1319 break;
1320
1321
1322
1323
1324 case CSR_SEL_XFER_DONE:
1325
1326
1327
1328
1329
1330 write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
1331 if (phs == 0x60) {
1332 DB(DB_INTR, printk("SX-DONE"))
1333 cmd->SCp.Message = COMMAND_COMPLETE;
1334 lun = read_3393(hostdata, WD_TARGET_LUN);
1335 DB(DB_INTR, printk(":%d.%d", cmd->SCp.Status, lun))
1336 hostdata->connected = NULL;
1337 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1338 hostdata->state = S_UNCONNECTED;
1339 if (cmd->SCp.Status == ILLEGAL_STATUS_BYTE)
1340 cmd->SCp.Status = lun;
1341 if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
1342 cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
1343 else
1344 cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
1345 cmd->scsi_done(cmd);
1346
1347
1348
1349
1350
1351 in2000_execute(instance);
1352 } else {
1353 printk("%02x:%02x:%02x: Unknown SEL_XFER_DONE phase!!---", asr, sr, phs);
1354 }
1355 break;
1356
1357
1358
1359
1360 case CSR_SDP:
1361 DB(DB_INTR, printk("SDP"))
1362 hostdata->state = S_RUNNING_LEVEL2;
1363 write_3393(hostdata, WD_COMMAND_PHASE, 0x41);
1364 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
1365 break;
1366
1367
1368 case CSR_XFER_DONE | PHS_MESS_OUT:
1369 case CSR_UNEXP | PHS_MESS_OUT:
1370 case CSR_SRV_REQ | PHS_MESS_OUT:
1371 DB(DB_INTR, printk("MSG_OUT="))
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385 if (hostdata->outgoing_len == 0) {
1386 hostdata->outgoing_len = 1;
1387 hostdata->outgoing_msg[0] = NOP;
1388 }
1389 transfer_pio(hostdata->outgoing_msg, hostdata->outgoing_len, DATA_OUT_DIR, hostdata);
1390 DB(DB_INTR, printk("%02x", hostdata->outgoing_msg[0]))
1391 hostdata->outgoing_len = 0;
1392 hostdata->state = S_CONNECTED;
1393 break;
1394
1395
1396 case CSR_UNEXP_DISC:
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411 write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
1412 if (cmd == NULL) {
1413 printk(" - Already disconnected! ");
1414 hostdata->state = S_UNCONNECTED;
1415
1416
1417 spin_unlock_irqrestore(instance->host_lock, flags);
1418 return IRQ_HANDLED;
1419 }
1420 DB(DB_INTR, printk("UNEXP_DISC"))
1421 hostdata->connected = NULL;
1422 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1423 hostdata->state = S_UNCONNECTED;
1424 if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
1425 cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
1426 else
1427 cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
1428 cmd->scsi_done(cmd);
1429
1430
1431
1432
1433
1434 in2000_execute(instance);
1435 break;
1436
1437
1438 case CSR_DISC:
1439
1440
1441
1442
1443
1444 write_3393(hostdata, WD_SOURCE_ID, SRCID_ER);
1445 DB(DB_INTR, printk("DISC"))
1446 if (cmd == NULL) {
1447 printk(" - Already disconnected! ");
1448 hostdata->state = S_UNCONNECTED;
1449 }
1450 switch (hostdata->state) {
1451 case S_PRE_CMP_DISC:
1452 hostdata->connected = NULL;
1453 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1454 hostdata->state = S_UNCONNECTED;
1455 DB(DB_INTR, printk(":%d", cmd->SCp.Status))
1456 if (cmd->cmnd[0] == REQUEST_SENSE && cmd->SCp.Status != GOOD)
1457 cmd->result = (cmd->result & 0x00ffff) | (DID_ERROR << 16);
1458 else
1459 cmd->result = cmd->SCp.Status | (cmd->SCp.Message << 8);
1460 cmd->scsi_done(cmd);
1461 break;
1462 case S_PRE_TMP_DISC:
1463 case S_RUNNING_LEVEL2:
1464 cmd->host_scribble = (uchar *) hostdata->disconnected_Q;
1465 hostdata->disconnected_Q = cmd;
1466 hostdata->connected = NULL;
1467 hostdata->state = S_UNCONNECTED;
1468
1469#ifdef PROC_STATISTICS
1470 hostdata->disc_done_cnt[cmd->device->id]++;
1471#endif
1472
1473 break;
1474 default:
1475 printk("*** Unexpected DISCONNECT interrupt! ***");
1476 hostdata->state = S_UNCONNECTED;
1477 }
1478
1479
1480
1481
1482
1483 in2000_execute(instance);
1484 break;
1485
1486
1487 case CSR_RESEL_AM:
1488 DB(DB_INTR, printk("RESEL"))
1489
1490
1491
1492
1493 if (hostdata->level2 <= L2_NONE) {
1494
1495 if (hostdata->selecting) {
1496 cmd = (Scsi_Cmnd *) hostdata->selecting;
1497 hostdata->selecting = NULL;
1498 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1499 cmd->host_scribble = (uchar *) hostdata->input_Q;
1500 hostdata->input_Q = cmd;
1501 }
1502 }
1503
1504 else {
1505
1506 if (cmd) {
1507 if (phs == 0x00) {
1508 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1509 cmd->host_scribble = (uchar *) hostdata->input_Q;
1510 hostdata->input_Q = cmd;
1511 } else {
1512 printk("---%02x:%02x:%02x-TROUBLE: Intrusive ReSelect!---", asr, sr, phs);
1513 while (1)
1514 printk("\r");
1515 }
1516 }
1517
1518 }
1519
1520
1521
1522 id = read_3393(hostdata, WD_SOURCE_ID);
1523 id &= SRCID_MASK;
1524
1525
1526
1527
1528
1529
1530 lun = read_3393(hostdata, WD_DATA);
1531 if (hostdata->level2 < L2_RESELECT)
1532 write_3393_cmd(hostdata, WD_CMD_NEGATE_ACK);
1533 lun &= 7;
1534
1535
1536
1537 cmd = (Scsi_Cmnd *) hostdata->disconnected_Q;
1538 patch = NULL;
1539 while (cmd) {
1540 if (id == cmd->device->id && lun == cmd->device->lun)
1541 break;
1542 patch = cmd;
1543 cmd = (Scsi_Cmnd *) cmd->host_scribble;
1544 }
1545
1546
1547
1548 if (!cmd) {
1549 printk("---TROUBLE: target %d.%d not in disconnect queue---", id, lun);
1550 break;
1551 }
1552
1553
1554
1555 if (patch)
1556 patch->host_scribble = cmd->host_scribble;
1557 else
1558 hostdata->disconnected_Q = (Scsi_Cmnd *) cmd->host_scribble;
1559 hostdata->connected = cmd;
1560
1561
1562
1563
1564
1565
1566 if (is_dir_out(cmd))
1567 write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id);
1568 else
1569 write_3393(hostdata, WD_DESTINATION_ID, cmd->device->id | DSTID_DPD);
1570 if (hostdata->level2 >= L2_RESELECT) {
1571 write_3393_count(hostdata, 0);
1572 write_3393(hostdata, WD_COMMAND_PHASE, 0x45);
1573 write_3393_cmd(hostdata, WD_CMD_SEL_ATN_XFER);
1574 hostdata->state = S_RUNNING_LEVEL2;
1575 } else
1576 hostdata->state = S_CONNECTED;
1577
1578 break;
1579
1580 default:
1581 printk("--UNKNOWN INTERRUPT:%02x:%02x:%02x--", asr, sr, phs);
1582 }
1583
1584 write1_io(0, IO_LED_OFF);
1585
1586 DB(DB_INTR, printk("} "))
1587
1588
1589 spin_unlock_irqrestore(instance->host_lock, flags);
1590 return IRQ_HANDLED;
1591}
1592
1593
1594
1595#define RESET_CARD 0
1596#define RESET_CARD_AND_BUS 1
1597#define B_FLAG 0x80
1598
1599
1600
1601
1602
1603static int reset_hardware(struct Scsi_Host *instance, int type)
1604{
1605 struct IN2000_hostdata *hostdata;
1606 int qt, x;
1607
1608 hostdata = (struct IN2000_hostdata *) instance->hostdata;
1609
1610 write1_io(0, IO_LED_ON);
1611 if (type == RESET_CARD_AND_BUS) {
1612 write1_io(0, IO_CARD_RESET);
1613 x = read1_io(IO_HARDWARE);
1614 }
1615 x = read_3393(hostdata, WD_SCSI_STATUS);
1616 write_3393(hostdata, WD_OWN_ID, instance->this_id | OWNID_EAF | OWNID_RAF | OWNID_FS_8);
1617 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
1618 write_3393(hostdata, WD_SYNCHRONOUS_TRANSFER, calc_sync_xfer(hostdata->default_sx_per / 4, DEFAULT_SX_OFF));
1619
1620 write1_io(0, IO_FIFO_WRITE);
1621 write1_io(0, IO_FIFO_READ);
1622 write_3393(hostdata, WD_COMMAND, WD_CMD_RESET);
1623
1624 while (!(READ_AUX_STAT() & ASR_INT))
1625 cpu_relax();
1626
1627 x = read_3393(hostdata, WD_SCSI_STATUS);
1628
1629 write_3393(hostdata, WD_QUEUE_TAG, 0xa5);
1630 qt = read_3393(hostdata, WD_QUEUE_TAG);
1631 if (qt == 0xa5) {
1632 x |= B_FLAG;
1633 write_3393(hostdata, WD_QUEUE_TAG, 0);
1634 }
1635 write_3393(hostdata, WD_TIMEOUT_PERIOD, TIMEOUT_PERIOD_VALUE);
1636 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
1637 write1_io(0, IO_LED_OFF);
1638 return x;
1639}
1640
1641
1642
1643static int in2000_bus_reset(Scsi_Cmnd * cmd)
1644{
1645 struct Scsi_Host *instance;
1646 struct IN2000_hostdata *hostdata;
1647 int x;
1648 unsigned long flags;
1649
1650 instance = cmd->device->host;
1651 hostdata = (struct IN2000_hostdata *) instance->hostdata;
1652
1653 printk(KERN_WARNING "scsi%d: Reset. ", instance->host_no);
1654
1655 spin_lock_irqsave(instance->host_lock, flags);
1656
1657
1658 reset_hardware(instance, RESET_CARD_AND_BUS);
1659 for (x = 0; x < 8; x++) {
1660 hostdata->busy[x] = 0;
1661 hostdata->sync_xfer[x] = calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF);
1662 hostdata->sync_stat[x] = SS_UNSET;
1663 }
1664 hostdata->input_Q = NULL;
1665 hostdata->selecting = NULL;
1666 hostdata->connected = NULL;
1667 hostdata->disconnected_Q = NULL;
1668 hostdata->state = S_UNCONNECTED;
1669 hostdata->fifo = FI_FIFO_UNUSED;
1670 hostdata->incoming_ptr = 0;
1671 hostdata->outgoing_len = 0;
1672
1673 cmd->result = DID_RESET << 16;
1674
1675 spin_unlock_irqrestore(instance->host_lock, flags);
1676 return SUCCESS;
1677}
1678
1679static int __in2000_abort(Scsi_Cmnd * cmd)
1680{
1681 struct Scsi_Host *instance;
1682 struct IN2000_hostdata *hostdata;
1683 Scsi_Cmnd *tmp, *prev;
1684 uchar sr, asr;
1685 unsigned long timeout;
1686
1687 instance = cmd->device->host;
1688 hostdata = (struct IN2000_hostdata *) instance->hostdata;
1689
1690 printk(KERN_DEBUG "scsi%d: Abort-", instance->host_no);
1691 printk("(asr=%02x,count=%ld,resid=%d,buf_resid=%d,have_data=%d,FC=%02x)- ", READ_AUX_STAT(), read_3393_count(hostdata), cmd->SCp.this_residual, cmd->SCp.buffers_residual, cmd->SCp.have_data_in, read1_io(IO_FIFO_COUNT));
1692
1693
1694
1695
1696
1697
1698 tmp = (Scsi_Cmnd *) hostdata->input_Q;
1699 prev = NULL;
1700 while (tmp) {
1701 if (tmp == cmd) {
1702 if (prev)
1703 prev->host_scribble = cmd->host_scribble;
1704 cmd->host_scribble = NULL;
1705 cmd->result = DID_ABORT << 16;
1706 printk(KERN_WARNING "scsi%d: Abort - removing command from input_Q. ", instance->host_no);
1707 cmd->scsi_done(cmd);
1708 return SUCCESS;
1709 }
1710 prev = tmp;
1711 tmp = (Scsi_Cmnd *) tmp->host_scribble;
1712 }
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725 if (hostdata->connected == cmd) {
1726
1727 printk(KERN_WARNING "scsi%d: Aborting connected command - ", instance->host_no);
1728
1729 printk("sending wd33c93 ABORT command - ");
1730 write_3393(hostdata, WD_CONTROL, CTRL_IDI | CTRL_EDI | CTRL_POLLED);
1731 write_3393_cmd(hostdata, WD_CMD_ABORT);
1732
1733
1734
1735 printk("flushing fifo - ");
1736 timeout = 1000000;
1737 do {
1738 asr = READ_AUX_STAT();
1739 if (asr & ASR_DBR)
1740 read_3393(hostdata, WD_DATA);
1741 } while (!(asr & ASR_INT) && timeout-- > 0);
1742 sr = read_3393(hostdata, WD_SCSI_STATUS);
1743 printk("asr=%02x, sr=%02x, %ld bytes un-transferred (timeout=%ld) - ", asr, sr, read_3393_count(hostdata), timeout);
1744
1745
1746
1747
1748
1749
1750
1751 printk("sending wd33c93 DISCONNECT command - ");
1752 write_3393_cmd(hostdata, WD_CMD_DISCONNECT);
1753
1754 timeout = 1000000;
1755 asr = READ_AUX_STAT();
1756 while ((asr & ASR_CIP) && timeout-- > 0)
1757 asr = READ_AUX_STAT();
1758 sr = read_3393(hostdata, WD_SCSI_STATUS);
1759 printk("asr=%02x, sr=%02x.", asr, sr);
1760
1761 hostdata->busy[cmd->device->id] &= ~(1 << cmd->device->lun);
1762 hostdata->connected = NULL;
1763 hostdata->state = S_UNCONNECTED;
1764 cmd->result = DID_ABORT << 16;
1765 cmd->scsi_done(cmd);
1766
1767 in2000_execute(instance);
1768
1769 return SUCCESS;
1770 }
1771
1772
1773
1774
1775
1776
1777
1778 for (tmp = (Scsi_Cmnd *) hostdata->disconnected_Q; tmp; tmp = (Scsi_Cmnd *) tmp->host_scribble)
1779 if (cmd == tmp) {
1780 printk(KERN_DEBUG "scsi%d: unable to abort disconnected command.\n", instance->host_no);
1781 return FAILED;
1782 }
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794 in2000_execute(instance);
1795
1796 printk("scsi%d: warning : SCSI command probably completed successfully" " before abortion. ", instance->host_no);
1797 return SUCCESS;
1798}
1799
1800static int in2000_abort(Scsi_Cmnd * cmd)
1801{
1802 int rc;
1803
1804 spin_lock_irq(cmd->device->host->host_lock);
1805 rc = __in2000_abort(cmd);
1806 spin_unlock_irq(cmd->device->host->host_lock);
1807
1808 return rc;
1809}
1810
1811
1812#define MAX_IN2000_HOSTS 3
1813#define MAX_SETUP_ARGS ARRAY_SIZE(setup_args)
1814#define SETUP_BUFFER_SIZE 200
1815static char setup_buffer[SETUP_BUFFER_SIZE];
1816static char setup_used[MAX_SETUP_ARGS];
1817static int done_setup = 0;
1818
1819static void __init in2000_setup(char *str, int *ints)
1820{
1821 int i;
1822 char *p1, *p2;
1823
1824 strlcpy(setup_buffer, str, SETUP_BUFFER_SIZE);
1825 p1 = setup_buffer;
1826 i = 0;
1827 while (*p1 && (i < MAX_SETUP_ARGS)) {
1828 p2 = strchr(p1, ',');
1829 if (p2) {
1830 *p2 = '\0';
1831 if (p1 != p2)
1832 setup_args[i] = p1;
1833 p1 = p2 + 1;
1834 i++;
1835 } else {
1836 setup_args[i] = p1;
1837 break;
1838 }
1839 }
1840 for (i = 0; i < MAX_SETUP_ARGS; i++)
1841 setup_used[i] = 0;
1842 done_setup = 1;
1843}
1844
1845
1846
1847
1848
1849static int __init check_setup_args(char *key, int *val, char *buf)
1850{
1851 int x;
1852 char *cp;
1853
1854 for (x = 0; x < MAX_SETUP_ARGS; x++) {
1855 if (setup_used[x])
1856 continue;
1857 if (!strncmp(setup_args[x], key, strlen(key)))
1858 break;
1859 }
1860 if (x == MAX_SETUP_ARGS)
1861 return 0;
1862 setup_used[x] = 1;
1863 cp = setup_args[x] + strlen(key);
1864 *val = -1;
1865 if (*cp != ':')
1866 return ++x;
1867 cp++;
1868 if ((*cp >= '0') && (*cp <= '9')) {
1869 *val = simple_strtoul(cp, NULL, 0);
1870 }
1871 return ++x;
1872}
1873
1874
1875
1876
1877
1878
1879
1880
1881static u32 bios_tab[] in2000__INITDATA = {
1882 0xc8000,
1883 0xd0000,
1884 0xd8000,
1885 0
1886};
1887
1888static unsigned short base_tab[] in2000__INITDATA = {
1889 0x220,
1890 0x200,
1891 0x110,
1892 0x100,
1893};
1894
1895static int int_tab[] in2000__INITDATA = {
1896 15,
1897 14,
1898 11,
1899 10
1900};
1901
1902static int probe_bios(u32 addr, u32 *s1, uchar *switches)
1903{
1904 void __iomem *p = ioremap(addr, 0x34);
1905 if (!p)
1906 return 0;
1907 *s1 = readl(p + 0x10);
1908 if (*s1 == 0x41564f4e || readl(p + 0x30) == 0x61776c41) {
1909
1910 *switches = ~readb(p + 0x20);
1911 iounmap(p);
1912 return 1;
1913 }
1914 iounmap(p);
1915 return 0;
1916}
1917
1918static int __init in2000_detect(struct scsi_host_template * tpnt)
1919{
1920 struct Scsi_Host *instance;
1921 struct IN2000_hostdata *hostdata;
1922 int detect_count;
1923 int bios;
1924 int x;
1925 unsigned short base;
1926 uchar switches;
1927 uchar hrev;
1928 unsigned long flags;
1929 int val;
1930 char buf[32];
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944 if (!done_setup && setup_strings)
1945 in2000_setup(setup_strings, NULL);
1946
1947 detect_count = 0;
1948 for (bios = 0; bios_tab[bios]; bios++) {
1949 u32 s1 = 0;
1950 if (check_setup_args("ioport", &val, buf)) {
1951 base = val;
1952 switches = ~inb(base + IO_SWITCHES) & 0xff;
1953 printk("Forcing IN2000 detection at IOport 0x%x ", base);
1954 bios = 2;
1955 }
1956
1957
1958
1959
1960
1961 else if (probe_bios(bios_tab[bios], &s1, &switches)) {
1962 printk("Found IN2000 BIOS at 0x%x ", (unsigned int) bios_tab[bios]);
1963
1964
1965
1966 x = switches & (SW_ADDR0 | SW_ADDR1);
1967 base = base_tab[x];
1968
1969
1970
1971 x = ~inb(base + IO_SWITCHES) & 0xff;
1972 if (x != switches) {
1973 printk("Bad IO signature: %02x vs %02x.\n", x, switches);
1974 continue;
1975 }
1976 } else
1977 continue;
1978
1979
1980
1981 if (!(switches & SW_BIT7)) {
1982 printk("There is no IN-2000 SCSI card at IOport 0x%03x!\n", base);
1983 continue;
1984 }
1985
1986
1987
1988
1989
1990
1991 hrev = inb(base + IO_HARDWARE);
1992
1993
1994 if (switches & SW_DISINT) {
1995 printk("The IN-2000 SCSI card at IOport 0x%03x ", base);
1996 printk("is not configured for interrupt operation!\n");
1997 printk("This driver requires an interrupt: cancelling detection.\n");
1998 continue;
1999 }
2000
2001
2002
2003
2004
2005 tpnt->proc_name = "in2000";
2006 instance = scsi_register(tpnt, sizeof(struct IN2000_hostdata));
2007 if (instance == NULL)
2008 continue;
2009 detect_count++;
2010 hostdata = (struct IN2000_hostdata *) instance->hostdata;
2011 instance->io_port = hostdata->io_base = base;
2012 hostdata->dip_switch = switches;
2013 hostdata->hrev = hrev;
2014
2015 write1_io(0, IO_FIFO_WRITE);
2016 write1_io(0, IO_FIFO_READ);
2017 write1_io(0, IO_INTR_MASK);
2018 x = int_tab[(switches & (SW_INT0 | SW_INT1)) >> SW_INT_SHIFT];
2019 if (request_irq(x, in2000_intr, IRQF_DISABLED, "in2000", instance)) {
2020 printk("in2000_detect: Unable to allocate IRQ.\n");
2021 detect_count--;
2022 continue;
2023 }
2024 instance->irq = x;
2025 instance->n_io_port = 13;
2026 request_region(base, 13, "in2000");
2027
2028 for (x = 0; x < 8; x++) {
2029 hostdata->busy[x] = 0;
2030 hostdata->sync_xfer[x] = calc_sync_xfer(DEFAULT_SX_PER / 4, DEFAULT_SX_OFF);
2031 hostdata->sync_stat[x] = SS_UNSET;
2032#ifdef PROC_STATISTICS
2033 hostdata->cmd_cnt[x] = 0;
2034 hostdata->disc_allowed_cnt[x] = 0;
2035 hostdata->disc_done_cnt[x] = 0;
2036#endif
2037 }
2038 hostdata->input_Q = NULL;
2039 hostdata->selecting = NULL;
2040 hostdata->connected = NULL;
2041 hostdata->disconnected_Q = NULL;
2042 hostdata->state = S_UNCONNECTED;
2043 hostdata->fifo = FI_FIFO_UNUSED;
2044 hostdata->level2 = L2_BASIC;
2045 hostdata->disconnect = DIS_ADAPTIVE;
2046 hostdata->args = DEBUG_DEFAULTS;
2047 hostdata->incoming_ptr = 0;
2048 hostdata->outgoing_len = 0;
2049 hostdata->default_sx_per = DEFAULT_SX_PER;
2050
2051
2052
2053 if (s1 == 0x41564f4e && (switches & SW_SYNC_DOS5))
2054 hostdata->sync_off = 0x00;
2055 else
2056 hostdata->sync_off = 0xff;
2057
2058#ifdef PROC_INTERFACE
2059 hostdata->proc = PR_VERSION | PR_INFO | PR_STATISTICS | PR_CONNECTED | PR_INPUTQ | PR_DISCQ | PR_STOP;
2060#ifdef PROC_STATISTICS
2061 hostdata->int_cnt = 0;
2062#endif
2063#endif
2064
2065 if (check_setup_args("nosync", &val, buf))
2066 hostdata->sync_off = val;
2067
2068 if (check_setup_args("period", &val, buf))
2069 hostdata->default_sx_per = sx_table[round_period((unsigned int) val)].period_ns;
2070
2071 if (check_setup_args("disconnect", &val, buf)) {
2072 if ((val >= DIS_NEVER) && (val <= DIS_ALWAYS))
2073 hostdata->disconnect = val;
2074 else
2075 hostdata->disconnect = DIS_ADAPTIVE;
2076 }
2077
2078 if (check_setup_args("noreset", &val, buf))
2079 hostdata->args ^= A_NO_SCSI_RESET;
2080
2081 if (check_setup_args("level2", &val, buf))
2082 hostdata->level2 = val;
2083
2084 if (check_setup_args("debug", &val, buf))
2085 hostdata->args = (val & DB_MASK);
2086
2087#ifdef PROC_INTERFACE
2088 if (check_setup_args("proc", &val, buf))
2089 hostdata->proc = val;
2090#endif
2091
2092
2093
2094
2095 spin_lock_irqsave(instance->host_lock, flags);
2096 x = reset_hardware(instance, (hostdata->args & A_NO_SCSI_RESET) ? RESET_CARD : RESET_CARD_AND_BUS);
2097 spin_unlock_irqrestore(instance->host_lock, flags);
2098
2099 hostdata->microcode = read_3393(hostdata, WD_CDB_1);
2100 if (x & 0x01) {
2101 if (x & B_FLAG)
2102 hostdata->chip = C_WD33C93B;
2103 else
2104 hostdata->chip = C_WD33C93A;
2105 } else
2106 hostdata->chip = C_WD33C93;
2107
2108 printk("dip_switch=%02x irq=%d ioport=%02x floppy=%s sync/DOS5=%s ", (switches & 0x7f), instance->irq, hostdata->io_base, (switches & SW_FLOPPY) ? "Yes" : "No", (switches & SW_SYNC_DOS5) ? "Yes" : "No");
2109 printk("hardware_ver=%02x chip=%s microcode=%02x\n", hrev, (hostdata->chip == C_WD33C93) ? "WD33c93" : (hostdata->chip == C_WD33C93A) ? "WD33c93A" : (hostdata->chip == C_WD33C93B) ? "WD33c93B" : "unknown", hostdata->microcode);
2110#ifdef DEBUGGING_ON
2111 printk("setup_args = ");
2112 for (x = 0; x < MAX_SETUP_ARGS; x++)
2113 printk("%s,", setup_args[x]);
2114 printk("\n");
2115#endif
2116 if (hostdata->sync_off == 0xff)
2117 printk("Sync-transfer DISABLED on all devices: ENABLE from command-line\n");
2118 printk("IN2000 driver version %s - %s\n", IN2000_VERSION, IN2000_DATE);
2119 }
2120
2121 return detect_count;
2122}
2123
2124static int in2000_release(struct Scsi_Host *shost)
2125{
2126 if (shost->irq)
2127 free_irq(shost->irq, shost);
2128 if (shost->io_port && shost->n_io_port)
2129 release_region(shost->io_port, shost->n_io_port);
2130 return 0;
2131}
2132
2133
2134
2135
2136
2137
2138static int in2000_biosparam(struct scsi_device *sdev, struct block_device *bdev, sector_t capacity, int *iinfo)
2139{
2140 int size;
2141
2142 size = capacity;
2143 iinfo[0] = 64;
2144 iinfo[1] = 32;
2145 iinfo[2] = size >> 11;
2146
2147
2148
2149
2150
2151 if (iinfo[2] > 1024) {
2152 iinfo[0] = 64;
2153 iinfo[1] = 63;
2154 iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
2155 }
2156 if (iinfo[2] > 1024) {
2157 iinfo[0] = 128;
2158 iinfo[1] = 63;
2159 iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
2160 }
2161 if (iinfo[2] > 1024) {
2162 iinfo[0] = 255;
2163 iinfo[1] = 63;
2164 iinfo[2] = (unsigned long) capacity / (iinfo[0] * iinfo[1]);
2165 }
2166 return 0;
2167}
2168
2169
2170static int in2000_proc_info(struct Scsi_Host *instance, char *buf, char **start, off_t off, int len, int in)
2171{
2172
2173#ifdef PROC_INTERFACE
2174
2175 char *bp;
2176 char tbuf[128];
2177 unsigned long flags;
2178 struct IN2000_hostdata *hd;
2179 Scsi_Cmnd *cmd;
2180 int x, i;
2181 static int stop = 0;
2182
2183 hd = (struct IN2000_hostdata *) instance->hostdata;
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194 if (in) {
2195 buf[len] = '\0';
2196 bp = buf;
2197 if (!strncmp(bp, "debug:", 6)) {
2198 bp += 6;
2199 hd->args = simple_strtoul(bp, NULL, 0) & DB_MASK;
2200 } else if (!strncmp(bp, "disconnect:", 11)) {
2201 bp += 11;
2202 x = simple_strtoul(bp, NULL, 0);
2203 if (x < DIS_NEVER || x > DIS_ALWAYS)
2204 x = DIS_ADAPTIVE;
2205 hd->disconnect = x;
2206 } else if (!strncmp(bp, "period:", 7)) {
2207 bp += 7;
2208 x = simple_strtoul(bp, NULL, 0);
2209 hd->default_sx_per = sx_table[round_period((unsigned int) x)].period_ns;
2210 } else if (!strncmp(bp, "resync:", 7)) {
2211 bp += 7;
2212 x = simple_strtoul(bp, NULL, 0);
2213 for (i = 0; i < 7; i++)
2214 if (x & (1 << i))
2215 hd->sync_stat[i] = SS_UNSET;
2216 } else if (!strncmp(bp, "proc:", 5)) {
2217 bp += 5;
2218 hd->proc = simple_strtoul(bp, NULL, 0);
2219 } else if (!strncmp(bp, "level2:", 7)) {
2220 bp += 7;
2221 hd->level2 = simple_strtoul(bp, NULL, 0);
2222 }
2223 return len;
2224 }
2225
2226 spin_lock_irqsave(instance->host_lock, flags);
2227 bp = buf;
2228 *bp = '\0';
2229 if (hd->proc & PR_VERSION) {
2230 sprintf(tbuf, "\nVersion %s - %s.", IN2000_VERSION, IN2000_DATE);
2231 strcat(bp, tbuf);
2232 }
2233 if (hd->proc & PR_INFO) {
2234 sprintf(tbuf, "\ndip_switch=%02x: irq=%d io=%02x floppy=%s sync/DOS5=%s", (hd->dip_switch & 0x7f), instance->irq, hd->io_base, (hd->dip_switch & 0x40) ? "Yes" : "No", (hd->dip_switch & 0x20) ? "Yes" : "No");
2235 strcat(bp, tbuf);
2236 strcat(bp, "\nsync_xfer[] = ");
2237 for (x = 0; x < 7; x++) {
2238 sprintf(tbuf, "\t%02x", hd->sync_xfer[x]);
2239 strcat(bp, tbuf);
2240 }
2241 strcat(bp, "\nsync_stat[] = ");
2242 for (x = 0; x < 7; x++) {
2243 sprintf(tbuf, "\t%02x", hd->sync_stat[x]);
2244 strcat(bp, tbuf);
2245 }
2246 }
2247#ifdef PROC_STATISTICS
2248 if (hd->proc & PR_STATISTICS) {
2249 strcat(bp, "\ncommands issued: ");
2250 for (x = 0; x < 7; x++) {
2251 sprintf(tbuf, "\t%ld", hd->cmd_cnt[x]);
2252 strcat(bp, tbuf);
2253 }
2254 strcat(bp, "\ndisconnects allowed:");
2255 for (x = 0; x < 7; x++) {
2256 sprintf(tbuf, "\t%ld", hd->disc_allowed_cnt[x]);
2257 strcat(bp, tbuf);
2258 }
2259 strcat(bp, "\ndisconnects done: ");
2260 for (x = 0; x < 7; x++) {
2261 sprintf(tbuf, "\t%ld", hd->disc_done_cnt[x]);
2262 strcat(bp, tbuf);
2263 }
2264 sprintf(tbuf, "\ninterrupts: \t%ld", hd->int_cnt);
2265 strcat(bp, tbuf);
2266 }
2267#endif
2268 if (hd->proc & PR_CONNECTED) {
2269 strcat(bp, "\nconnected: ");
2270 if (hd->connected) {
2271 cmd = (Scsi_Cmnd *) hd->connected;
2272 sprintf(tbuf, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
2273 strcat(bp, tbuf);
2274 }
2275 }
2276 if (hd->proc & PR_INPUTQ) {
2277 strcat(bp, "\ninput_Q: ");
2278 cmd = (Scsi_Cmnd *) hd->input_Q;
2279 while (cmd) {
2280 sprintf(tbuf, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
2281 strcat(bp, tbuf);
2282 cmd = (Scsi_Cmnd *) cmd->host_scribble;
2283 }
2284 }
2285 if (hd->proc & PR_DISCQ) {
2286 strcat(bp, "\ndisconnected_Q:");
2287 cmd = (Scsi_Cmnd *) hd->disconnected_Q;
2288 while (cmd) {
2289 sprintf(tbuf, " %d:%d(%02x)", cmd->device->id, cmd->device->lun, cmd->cmnd[0]);
2290 strcat(bp, tbuf);
2291 cmd = (Scsi_Cmnd *) cmd->host_scribble;
2292 }
2293 }
2294 if (hd->proc & PR_TEST) {
2295 ;
2296 }
2297 strcat(bp, "\n");
2298 spin_unlock_irqrestore(instance->host_lock, flags);
2299 *start = buf;
2300 if (stop) {
2301 stop = 0;
2302 return 0;
2303 }
2304 if (off > 0x40000)
2305 stop = 1;
2306 if (hd->proc & PR_STOP)
2307 stop = 1;
2308 return strlen(bp);
2309
2310#else
2311
2312 return 0;
2313
2314#endif
2315
2316}
2317
2318MODULE_LICENSE("GPL");
2319
2320
2321static struct scsi_host_template driver_template = {
2322 .proc_name = "in2000",
2323 .proc_info = in2000_proc_info,
2324 .name = "Always IN2000",
2325 .detect = in2000_detect,
2326 .release = in2000_release,
2327 .queuecommand = in2000_queuecommand,
2328 .eh_abort_handler = in2000_abort,
2329 .eh_bus_reset_handler = in2000_bus_reset,
2330 .bios_param = in2000_biosparam,
2331 .can_queue = IN2000_CAN_Q,
2332 .this_id = IN2000_HOST_ID,
2333 .sg_tablesize = IN2000_SG,
2334 .cmd_per_lun = IN2000_CPL,
2335 .use_clustering = DISABLE_CLUSTERING,
2336};
2337#include "scsi_module.c"
2338