1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28#include <linux/module.h>
29#include <linux/kernel.h>
30#include <linux/init.h>
31#include <linux/slab.h>
32#include <linux/string.h>
33#include <linux/timer.h>
34#include <linux/ioport.h>
35#include <linux/delay.h>
36#include <linux/interrupt.h>
37#include <linux/major.h>
38#include <linux/blkdev.h>
39#include <linux/stat.h>
40
41#include <asm/io.h>
42#include <asm/irq.h>
43
44#include <scsi/scsi.h>
45#include <scsi/scsi_cmnd.h>
46#include <scsi/scsi_host.h>
47#include <scsi/scsi_ioctl.h>
48
49#include <pcmcia/cistpl.h>
50#include <pcmcia/cisreg.h>
51#include <pcmcia/ds.h>
52
53#include "nsp_cs.h"
54
55MODULE_AUTHOR("YOKOTA Hiroshi <yokota@netlab.is.tsukuba.ac.jp>");
56MODULE_DESCRIPTION("WorkBit NinjaSCSI-3 / NinjaSCSI-32Bi(16bit) PCMCIA SCSI host adapter module");
57MODULE_LICENSE("GPL");
58
59#include "nsp_io.h"
60
61
62
63
64static int nsp_burst_mode = BURST_MEM32;
65module_param(nsp_burst_mode, int, 0);
66MODULE_PARM_DESC(nsp_burst_mode, "Burst transfer mode (0=io8, 1=io32, 2=mem32(default))");
67
68
69static bool free_ports = 0;
70module_param(free_ports, bool, 0);
71MODULE_PARM_DESC(free_ports, "Release IO ports after configuration? (default: 0 (=no))");
72
73static struct scsi_pointer *nsp_priv(struct scsi_cmnd *cmd)
74{
75 return scsi_cmd_priv(cmd);
76}
77
78static struct scsi_host_template nsp_driver_template = {
79 .proc_name = "nsp_cs",
80 .show_info = nsp_show_info,
81 .name = "WorkBit NinjaSCSI-3/32Bi(16bit)",
82 .info = nsp_info,
83 .queuecommand = nsp_queuecommand,
84
85 .eh_bus_reset_handler = nsp_eh_bus_reset,
86 .eh_host_reset_handler = nsp_eh_host_reset,
87 .can_queue = 1,
88 .this_id = NSP_INITIATOR_ID,
89 .sg_tablesize = SG_ALL,
90 .dma_boundary = PAGE_SIZE - 1,
91 .cmd_size = sizeof(struct scsi_pointer),
92};
93
94static nsp_hw_data nsp_data_base;
95
96
97
98
99
100
101#ifndef NSP_DEBUG
102# define NSP_DEBUG_MASK 0x000000
103# define nsp_msg(type, args...) nsp_cs_message("", 0, (type), args)
104# define nsp_dbg(mask, args...)
105#else
106# define NSP_DEBUG_MASK 0xffffff
107# define nsp_msg(type, args...) \
108 nsp_cs_message (__func__, __LINE__, (type), args)
109# define nsp_dbg(mask, args...) \
110 nsp_cs_dmessage(__func__, __LINE__, (mask), args)
111#endif
112
113#define NSP_DEBUG_QUEUECOMMAND BIT(0)
114#define NSP_DEBUG_REGISTER BIT(1)
115#define NSP_DEBUG_AUTOSCSI BIT(2)
116#define NSP_DEBUG_INTR BIT(3)
117#define NSP_DEBUG_SGLIST BIT(4)
118#define NSP_DEBUG_BUSFREE BIT(5)
119#define NSP_DEBUG_CDB_CONTENTS BIT(6)
120#define NSP_DEBUG_RESELECTION BIT(7)
121#define NSP_DEBUG_MSGINOCCUR BIT(8)
122#define NSP_DEBUG_EEPROM BIT(9)
123#define NSP_DEBUG_MSGOUTOCCUR BIT(10)
124#define NSP_DEBUG_BUSRESET BIT(11)
125#define NSP_DEBUG_RESTART BIT(12)
126#define NSP_DEBUG_SYNC BIT(13)
127#define NSP_DEBUG_WAIT BIT(14)
128#define NSP_DEBUG_TARGETFLAG BIT(15)
129#define NSP_DEBUG_PROC BIT(16)
130#define NSP_DEBUG_INIT BIT(17)
131#define NSP_DEBUG_DATA_IO BIT(18)
132#define NSP_SPECIAL_PRINT_REGISTER BIT(20)
133
134#define NSP_DEBUG_BUF_LEN 150
135
136static inline void nsp_inc_resid(struct scsi_cmnd *SCpnt, int residInc)
137{
138 scsi_set_resid(SCpnt, scsi_get_resid(SCpnt) + residInc);
139}
140
141__printf(4, 5)
142static void nsp_cs_message(const char *func, int line, char *type, char *fmt, ...)
143{
144 va_list args;
145 char buf[NSP_DEBUG_BUF_LEN];
146
147 va_start(args, fmt);
148 vsnprintf(buf, sizeof(buf), fmt, args);
149 va_end(args);
150
151#ifndef NSP_DEBUG
152 printk("%snsp_cs: %s\n", type, buf);
153#else
154 printk("%snsp_cs: %s (%d): %s\n", type, func, line, buf);
155#endif
156}
157
158#ifdef NSP_DEBUG
159static void nsp_cs_dmessage(const char *func, int line, int mask, char *fmt, ...)
160{
161 va_list args;
162 char buf[NSP_DEBUG_BUF_LEN];
163
164 va_start(args, fmt);
165 vsnprintf(buf, sizeof(buf), fmt, args);
166 va_end(args);
167
168 if (mask & NSP_DEBUG_MASK) {
169 printk("nsp_cs-debug: 0x%x %s (%d): %s\n", mask, func, line, buf);
170 }
171}
172#endif
173
174
175
176
177
178
179
180static void nsp_scsi_done(struct scsi_cmnd *SCpnt)
181{
182 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
183
184 data->CurrentSC = NULL;
185
186 scsi_done(SCpnt);
187}
188
189static int nsp_queuecommand_lck(struct scsi_cmnd *const SCpnt)
190{
191 struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
192#ifdef NSP_DEBUG
193
194
195 unsigned char target = scmd_id(SCpnt);
196#endif
197 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
198
199 nsp_dbg(NSP_DEBUG_QUEUECOMMAND,
200 "SCpnt=0x%p target=%d lun=%llu sglist=0x%p bufflen=%d sg_count=%d",
201 SCpnt, target, SCpnt->device->lun, scsi_sglist(SCpnt),
202 scsi_bufflen(SCpnt), scsi_sg_count(SCpnt));
203
204
205 if (data->CurrentSC != NULL) {
206 nsp_msg(KERN_DEBUG, "CurrentSC!=NULL this can't be happen");
207 SCpnt->result = DID_BAD_TARGET << 16;
208 nsp_scsi_done(SCpnt);
209 return 0;
210 }
211
212#if 0
213
214
215 if (data->ScsiInfo->stop != 0) {
216 nsp_msg(KERN_INFO, "suspending device. reject command.");
217 SCpnt->result = DID_BAD_TARGET << 16;
218 nsp_scsi_done(SCpnt);
219 return SCSI_MLQUEUE_HOST_BUSY;
220 }
221#endif
222
223 show_command(SCpnt);
224
225 data->CurrentSC = SCpnt;
226
227 scsi_pointer->Status = SAM_STAT_CHECK_CONDITION;
228 scsi_pointer->Message = 0;
229 scsi_pointer->have_data_in = IO_UNKNOWN;
230 scsi_pointer->sent_command = 0;
231 scsi_pointer->phase = PH_UNDETERMINED;
232 scsi_set_resid(SCpnt, scsi_bufflen(SCpnt));
233
234
235
236
237
238
239
240 if (scsi_bufflen(SCpnt)) {
241 scsi_pointer->buffer = scsi_sglist(SCpnt);
242 scsi_pointer->ptr = BUFFER_ADDR(SCpnt);
243 scsi_pointer->this_residual = scsi_pointer->buffer->length;
244 scsi_pointer->buffers_residual = scsi_sg_count(SCpnt) - 1;
245 } else {
246 scsi_pointer->ptr = NULL;
247 scsi_pointer->this_residual = 0;
248 scsi_pointer->buffer = NULL;
249 scsi_pointer->buffers_residual = 0;
250 }
251
252 if (!nsphw_start_selection(SCpnt)) {
253 nsp_dbg(NSP_DEBUG_QUEUECOMMAND, "selection fail");
254 SCpnt->result = DID_BUS_BUSY << 16;
255 nsp_scsi_done(SCpnt);
256 return 0;
257 }
258
259
260
261#ifdef NSP_DEBUG
262 data->CmdId++;
263#endif
264 return 0;
265}
266
267static DEF_SCSI_QCMD(nsp_queuecommand)
268
269
270
271
272static void nsp_setup_fifo(nsp_hw_data *data, bool enabled)
273{
274 unsigned int base = data->BaseAddress;
275 unsigned char transfer_mode_reg;
276
277
278
279 if (enabled) {
280 transfer_mode_reg = TRANSFER_GO | BRAIND;
281 } else {
282 transfer_mode_reg = 0;
283 }
284
285 transfer_mode_reg |= data->TransferMode;
286
287 nsp_index_write(base, TRANSFERMODE, transfer_mode_reg);
288}
289
290static void nsphw_init_sync(nsp_hw_data *data)
291{
292 sync_data tmp_sync = { .SyncNegotiation = SYNC_NOT_YET,
293 .SyncPeriod = 0,
294 .SyncOffset = 0
295 };
296 int i;
297
298
299 for ( i = 0; i < ARRAY_SIZE(data->Sync); i++ ) {
300 data->Sync[i] = tmp_sync;
301 }
302}
303
304
305
306
307static void nsphw_init(nsp_hw_data *data)
308{
309 unsigned int base = data->BaseAddress;
310
311 nsp_dbg(NSP_DEBUG_INIT, "in base=0x%x", base);
312
313 data->ScsiClockDiv = CLOCK_40M | FAST_20;
314 data->CurrentSC = NULL;
315 data->FifoCount = 0;
316 data->TransferMode = MODE_IO8;
317
318 nsphw_init_sync(data);
319
320
321 nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK);
322
323
324 nsp_write(base, IFSELECT, IF_IFSEL);
325
326 nsp_index_write(base, SCSIIRQMODE, 0);
327
328 nsp_index_write(base, TRANSFERMODE, MODE_IO8);
329 nsp_index_write(base, CLOCKDIV, data->ScsiClockDiv);
330
331 nsp_index_write(base, PARITYCTRL, 0);
332 nsp_index_write(base, POINTERCLR, POINTER_CLEAR |
333 ACK_COUNTER_CLEAR |
334 REQ_COUNTER_CLEAR |
335 HOST_COUNTER_CLEAR);
336
337
338 nsp_write(base, IFSELECT, IF_REGSEL);
339 nsp_index_write(base, TERMPWRCTRL, 0);
340 if ((nsp_index_read(base, OTHERCONTROL) & TPWR_SENSE) == 0) {
341 nsp_msg(KERN_INFO, "terminator power on");
342 nsp_index_write(base, TERMPWRCTRL, POWER_ON);
343 }
344
345 nsp_index_write(base, TIMERCOUNT, 0);
346 nsp_index_write(base, TIMERCOUNT, 0);
347
348 nsp_index_write(base, SYNCREG, 0);
349 nsp_index_write(base, ACKWIDTH, 0);
350
351
352 nsp_index_write(base, SCSIIRQMODE, SCSI_PHASE_CHANGE_EI |
353 RESELECT_EI |
354 SCSI_RESET_IRQ_EI );
355 nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR);
356
357 nsp_setup_fifo(data, false);
358}
359
360
361
362
363static bool nsphw_start_selection(struct scsi_cmnd *const SCpnt)
364{
365 struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
366 unsigned int host_id = SCpnt->device->host->this_id;
367 unsigned int base = SCpnt->device->host->io_port;
368 unsigned char target = scmd_id(SCpnt);
369 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
370 int time_out;
371 unsigned char phase, arbit;
372
373
374
375 phase = nsp_index_read(base, SCSIBUSMON);
376 if(phase != BUSMON_BUS_FREE) {
377
378 return false;
379 }
380
381
382
383 scsi_pointer->phase = PH_ARBSTART;
384 nsp_index_write(base, SETARBIT, ARBIT_GO);
385
386 time_out = 1000;
387 do {
388
389 arbit = nsp_index_read(base, ARBITSTATUS);
390
391 udelay(1);
392 } while((arbit & (ARBIT_WIN | ARBIT_FAIL)) == 0 &&
393 (time_out-- != 0));
394
395 if (!(arbit & ARBIT_WIN)) {
396
397 nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR);
398 return false;
399 }
400
401
402
403 scsi_pointer->phase = PH_SELSTART;
404 udelay(3);
405 nsp_index_write(base, SCSIDATALATCH, BIT(host_id) | BIT(target));
406 nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_ATN);
407 udelay(2);
408 nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_BSY | SCSI_DATAOUT_ENB | SCSI_ATN);
409 nsp_index_write(base, SETARBIT, ARBIT_FLAG_CLEAR);
410
411 nsp_index_write(base, SCSIBUSCTRL, SCSI_SEL | SCSI_DATAOUT_ENB | SCSI_ATN);
412
413
414 nsp_start_timer(SCpnt, 1000/51);
415 data->SelectionTimeOut = 1;
416
417 return true;
418}
419
420struct nsp_sync_table {
421 unsigned int min_period;
422 unsigned int max_period;
423 unsigned int chip_period;
424 unsigned int ack_width;
425};
426
427static struct nsp_sync_table nsp_sync_table_40M[] = {
428 {0x0c, 0x0c, 0x1, 0},
429 {0x19, 0x19, 0x3, 1},
430 {0x1a, 0x25, 0x5, 2},
431 {0x26, 0x32, 0x7, 3},
432 { 0, 0, 0, 0},
433};
434
435static struct nsp_sync_table nsp_sync_table_20M[] = {
436 {0x19, 0x19, 0x1, 0},
437 {0x1a, 0x25, 0x2, 0},
438 {0x26, 0x32, 0x3, 1},
439 { 0, 0, 0, 0},
440};
441
442
443
444
445static int nsp_analyze_sdtr(struct scsi_cmnd *SCpnt)
446{
447 unsigned char target = scmd_id(SCpnt);
448
449 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
450 sync_data *sync = &(data->Sync[target]);
451 struct nsp_sync_table *sync_table;
452 unsigned int period, offset;
453 int i;
454
455
456 nsp_dbg(NSP_DEBUG_SYNC, "in");
457
458 period = sync->SyncPeriod;
459 offset = sync->SyncOffset;
460
461 nsp_dbg(NSP_DEBUG_SYNC, "period=0x%x, offset=0x%x", period, offset);
462
463 if ((data->ScsiClockDiv & (BIT(0)|BIT(1))) == CLOCK_20M) {
464 sync_table = nsp_sync_table_20M;
465 } else {
466 sync_table = nsp_sync_table_40M;
467 }
468
469 for ( i = 0; sync_table->max_period != 0; i++, sync_table++) {
470 if ( period >= sync_table->min_period &&
471 period <= sync_table->max_period ) {
472 break;
473 }
474 }
475
476 if (period != 0 && sync_table->max_period == 0) {
477
478
479
480 nsp_dbg(NSP_DEBUG_SYNC, "no proper period/offset");
481
482 sync->SyncPeriod = 0;
483 sync->SyncOffset = 0;
484 sync->SyncRegister = 0;
485 sync->AckWidth = 0;
486
487 return false;
488 }
489
490 sync->SyncRegister = (sync_table->chip_period << SYNCREG_PERIOD_SHIFT) |
491 (offset & SYNCREG_OFFSET_MASK);
492 sync->AckWidth = sync_table->ack_width;
493
494 nsp_dbg(NSP_DEBUG_SYNC, "sync_reg=0x%x, ack_width=0x%x", sync->SyncRegister, sync->AckWidth);
495
496 return true;
497}
498
499
500
501
502
503static void nsp_start_timer(struct scsi_cmnd *SCpnt, int time)
504{
505 unsigned int base = SCpnt->device->host->io_port;
506 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
507
508
509 data->TimerCount = time;
510 nsp_index_write(base, TIMERCOUNT, time);
511}
512
513
514
515
516static int nsp_negate_signal(struct scsi_cmnd *SCpnt, unsigned char mask,
517 char *str)
518{
519 unsigned int base = SCpnt->device->host->io_port;
520 unsigned char reg;
521 int time_out;
522
523
524
525 time_out = 100;
526
527 do {
528 reg = nsp_index_read(base, SCSIBUSMON);
529 if (reg == 0xff) {
530 break;
531 }
532 } while ((--time_out != 0) && (reg & mask) != 0);
533
534 if (time_out == 0) {
535 nsp_msg(KERN_DEBUG, " %s signal off timeout", str);
536 }
537
538 return 0;
539}
540
541
542
543
544static int nsp_expect_signal(struct scsi_cmnd *SCpnt,
545 unsigned char current_phase,
546 unsigned char mask)
547{
548 unsigned int base = SCpnt->device->host->io_port;
549 int time_out;
550 unsigned char phase, i_src;
551
552
553
554 time_out = 100;
555 do {
556 phase = nsp_index_read(base, SCSIBUSMON);
557 if (phase == 0xff) {
558
559 return -1;
560 }
561 i_src = nsp_read(base, IRQSTATUS);
562 if (i_src & IRQSTATUS_SCSI) {
563
564 return 0;
565 }
566 if ((phase & mask) != 0 && (phase & BUSMON_PHASE_MASK) == current_phase) {
567
568 return 1;
569 }
570 } while(time_out-- != 0);
571
572
573 return -1;
574}
575
576
577
578
579static int nsp_xfer(struct scsi_cmnd *const SCpnt, int phase)
580{
581 struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
582 unsigned int base = SCpnt->device->host->io_port;
583 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
584 char *buf = data->MsgBuffer;
585 int len = min(MSGBUF_SIZE, data->MsgLen);
586 int ptr;
587 int ret;
588
589
590 for (ptr = 0; len > 0; len--, ptr++) {
591
592 ret = nsp_expect_signal(SCpnt, phase, BUSMON_REQ);
593 if (ret <= 0) {
594 nsp_dbg(NSP_DEBUG_DATA_IO, "xfer quit");
595 return 0;
596 }
597
598
599 if (len == 1 && scsi_pointer->phase == PH_MSG_OUT) {
600 nsp_index_write(base, SCSIBUSCTRL, AUTODIRECTION | ACKENB);
601 }
602
603
604 if (phase & BUSMON_IO) {
605 nsp_dbg(NSP_DEBUG_DATA_IO, "read msg");
606 buf[ptr] = nsp_index_read(base, SCSIDATAWITHACK);
607 } else {
608 nsp_dbg(NSP_DEBUG_DATA_IO, "write msg");
609 nsp_index_write(base, SCSIDATAWITHACK, buf[ptr]);
610 }
611 nsp_negate_signal(SCpnt, BUSMON_ACK, "xfer<ack>");
612
613 }
614 return len;
615}
616
617
618
619
620static int nsp_dataphase_bypass(struct scsi_cmnd *const SCpnt)
621{
622 struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
623 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
624 unsigned int count;
625
626
627
628 if (scsi_pointer->have_data_in != IO_IN) {
629 return 0;
630 }
631
632 count = nsp_fifo_count(SCpnt);
633 if (data->FifoCount == count) {
634
635 return 0;
636 }
637
638
639
640
641
642 nsp_dbg(NSP_DEBUG_DATA_IO, "use bypass quirk");
643 scsi_pointer->phase = PH_DATA;
644 nsp_pio_read(SCpnt);
645 nsp_setup_fifo(data, false);
646
647 return 0;
648}
649
650
651
652
653static void nsp_reselected(struct scsi_cmnd *SCpnt)
654{
655 unsigned int base = SCpnt->device->host->io_port;
656 unsigned int host_id = SCpnt->device->host->this_id;
657
658 unsigned char bus_reg;
659 unsigned char id_reg, tmp;
660 int target;
661
662 nsp_dbg(NSP_DEBUG_RESELECTION, "in");
663
664 id_reg = nsp_index_read(base, RESELECTID);
665 tmp = id_reg & (~BIT(host_id));
666 target = 0;
667 while(tmp != 0) {
668 if (tmp & BIT(0)) {
669 break;
670 }
671 tmp >>= 1;
672 target++;
673 }
674
675 if (scmd_id(SCpnt) != target) {
676 nsp_msg(KERN_ERR, "XXX: reselect ID must be %d in this implementation.", target);
677 }
678
679 nsp_negate_signal(SCpnt, BUSMON_SEL, "reselect<SEL>");
680
681 nsp_nexus(SCpnt);
682 bus_reg = nsp_index_read(base, SCSIBUSCTRL) & ~(SCSI_BSY | SCSI_ATN);
683 nsp_index_write(base, SCSIBUSCTRL, bus_reg);
684 nsp_index_write(base, SCSIBUSCTRL, bus_reg | AUTODIRECTION | ACKENB);
685}
686
687
688
689
690static int nsp_fifo_count(struct scsi_cmnd *SCpnt)
691{
692 unsigned int base = SCpnt->device->host->io_port;
693 unsigned int count;
694 unsigned int l, m, h;
695
696 nsp_index_write(base, POINTERCLR, POINTER_CLEAR | ACK_COUNTER);
697
698 l = nsp_index_read(base, TRANSFERCOUNT);
699 m = nsp_index_read(base, TRANSFERCOUNT);
700 h = nsp_index_read(base, TRANSFERCOUNT);
701 nsp_index_read(base, TRANSFERCOUNT);
702
703 count = (h << 16) | (m << 8) | (l << 0);
704
705
706
707 return count;
708}
709
710
711#define RFIFO_CRIT 64
712#define WFIFO_CRIT 64
713
714
715
716
717static void nsp_pio_read(struct scsi_cmnd *const SCpnt)
718{
719 struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
720 unsigned int base = SCpnt->device->host->io_port;
721 unsigned long mmio_base = SCpnt->device->host->base;
722 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
723 long time_out;
724 int ocount, res;
725 unsigned char stat, fifo_stat;
726
727 ocount = data->FifoCount;
728
729 nsp_dbg(NSP_DEBUG_DATA_IO, "in SCpnt=0x%p resid=%d ocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d",
730 SCpnt, scsi_get_resid(SCpnt), ocount, scsi_pointer->ptr,
731 scsi_pointer->this_residual, scsi_pointer->buffer,
732 scsi_pointer->buffers_residual);
733
734 time_out = 1000;
735
736 while ((time_out-- != 0) &&
737 (scsi_pointer->this_residual > 0 ||
738 scsi_pointer->buffers_residual > 0)) {
739
740 stat = nsp_index_read(base, SCSIBUSMON);
741 stat &= BUSMON_PHASE_MASK;
742
743
744 res = nsp_fifo_count(SCpnt) - ocount;
745
746 if (res == 0) {
747 if (stat == BUSPHASE_DATA_IN) {
748
749 continue;
750 } else {
751 nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x", stat);
752 break;
753 }
754 }
755
756 fifo_stat = nsp_read(base, FIFOSTATUS);
757 if ((fifo_stat & FIFOSTATUS_FULL_EMPTY) == 0 &&
758 stat == BUSPHASE_DATA_IN) {
759 continue;
760 }
761
762 res = min(res, scsi_pointer->this_residual);
763
764 switch (data->TransferMode) {
765 case MODE_IO32:
766 res &= ~(BIT(1)|BIT(0));
767 nsp_fifo32_read(base, scsi_pointer->ptr, res >> 2);
768 break;
769 case MODE_IO8:
770 nsp_fifo8_read(base, scsi_pointer->ptr, res);
771 break;
772
773 case MODE_MEM32:
774 res &= ~(BIT(1)|BIT(0));
775 nsp_mmio_fifo32_read(mmio_base, scsi_pointer->ptr,
776 res >> 2);
777 break;
778
779 default:
780 nsp_dbg(NSP_DEBUG_DATA_IO, "unknown read mode");
781 return;
782 }
783
784 nsp_inc_resid(SCpnt, -res);
785 scsi_pointer->ptr += res;
786 scsi_pointer->this_residual -= res;
787 ocount += res;
788
789
790
791 if (scsi_pointer->this_residual == 0 &&
792 scsi_pointer->buffers_residual != 0 ) {
793
794 scsi_pointer->buffers_residual--;
795 scsi_pointer->buffer = sg_next(scsi_pointer->buffer);
796 scsi_pointer->ptr = BUFFER_ADDR(SCpnt);
797 scsi_pointer->this_residual =
798 scsi_pointer->buffer->length;
799 time_out = 1000;
800
801
802 }
803 }
804
805 data->FifoCount = ocount;
806
807 if (time_out < 0) {
808 nsp_msg(KERN_DEBUG, "pio read timeout resid=%d this_residual=%d buffers_residual=%d",
809 scsi_get_resid(SCpnt), scsi_pointer->this_residual,
810 scsi_pointer->buffers_residual);
811 }
812 nsp_dbg(NSP_DEBUG_DATA_IO, "read ocount=0x%x", ocount);
813 nsp_dbg(NSP_DEBUG_DATA_IO, "r cmd=%d resid=0x%x\n", data->CmdId,
814 scsi_get_resid(SCpnt));
815}
816
817
818
819
820static void nsp_pio_write(struct scsi_cmnd *SCpnt)
821{
822 struct scsi_pointer *scsi_pointer = nsp_priv(SCpnt);
823 unsigned int base = SCpnt->device->host->io_port;
824 unsigned long mmio_base = SCpnt->device->host->base;
825 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
826 int time_out;
827 int ocount, res;
828 unsigned char stat;
829
830 ocount = data->FifoCount;
831
832 nsp_dbg(NSP_DEBUG_DATA_IO, "in fifocount=%d ptr=0x%p this_residual=%d buffers=0x%p nbuf=%d resid=0x%x",
833 data->FifoCount, scsi_pointer->ptr, scsi_pointer->this_residual,
834 scsi_pointer->buffer, scsi_pointer->buffers_residual,
835 scsi_get_resid(SCpnt));
836
837 time_out = 1000;
838
839 while ((time_out-- != 0) &&
840 (scsi_pointer->this_residual > 0 ||
841 scsi_pointer->buffers_residual > 0)) {
842 stat = nsp_index_read(base, SCSIBUSMON);
843 stat &= BUSMON_PHASE_MASK;
844
845 if (stat != BUSPHASE_DATA_OUT) {
846 res = ocount - nsp_fifo_count(SCpnt);
847
848 nsp_dbg(NSP_DEBUG_DATA_IO, "phase changed stat=0x%x, res=%d\n", stat, res);
849
850 nsp_inc_resid(SCpnt, res);
851 scsi_pointer->ptr -= res;
852 scsi_pointer->this_residual += res;
853 ocount -= res;
854
855 break;
856 }
857
858 res = ocount - nsp_fifo_count(SCpnt);
859 if (res > 0) {
860 nsp_dbg(NSP_DEBUG_DATA_IO, "wait for all data out. ocount=0x%x res=%d", ocount, res);
861 continue;
862 }
863
864 res = min(scsi_pointer->this_residual, WFIFO_CRIT);
865
866
867 switch (data->TransferMode) {
868 case MODE_IO32:
869 res &= ~(BIT(1)|BIT(0));
870 nsp_fifo32_write(base, scsi_pointer->ptr, res >> 2);
871 break;
872 case MODE_IO8:
873 nsp_fifo8_write(base, scsi_pointer->ptr, res);
874 break;
875
876 case MODE_MEM32:
877 res &= ~(BIT(1)|BIT(0));
878 nsp_mmio_fifo32_write(mmio_base, scsi_pointer->ptr,
879 res >> 2);
880 break;
881
882 default:
883 nsp_dbg(NSP_DEBUG_DATA_IO, "unknown write mode");
884 break;
885 }
886
887 nsp_inc_resid(SCpnt, -res);
888 scsi_pointer->ptr += res;
889 scsi_pointer->this_residual -= res;
890 ocount += res;
891
892
893 if (scsi_pointer->this_residual == 0 &&
894 scsi_pointer->buffers_residual != 0 ) {
895
896 scsi_pointer->buffers_residual--;
897 scsi_pointer->buffer = sg_next(scsi_pointer->buffer);
898 scsi_pointer->ptr = BUFFER_ADDR(SCpnt);
899 scsi_pointer->this_residual =
900 scsi_pointer->buffer->length;
901 time_out = 1000;
902 }
903 }
904
905 data->FifoCount = ocount;
906
907 if (time_out < 0) {
908 nsp_msg(KERN_DEBUG, "pio write timeout resid=0x%x",
909 scsi_get_resid(SCpnt));
910 }
911 nsp_dbg(NSP_DEBUG_DATA_IO, "write ocount=0x%x", ocount);
912 nsp_dbg(NSP_DEBUG_DATA_IO, "w cmd=%d resid=0x%x\n", data->CmdId,
913 scsi_get_resid(SCpnt));
914}
915#undef RFIFO_CRIT
916#undef WFIFO_CRIT
917
918
919
920
921static int nsp_nexus(struct scsi_cmnd *SCpnt)
922{
923 unsigned int base = SCpnt->device->host->io_port;
924 unsigned char target = scmd_id(SCpnt);
925
926 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
927 sync_data *sync = &(data->Sync[target]);
928
929
930
931
932 nsp_index_write(base, SYNCREG, sync->SyncRegister);
933 nsp_index_write(base, ACKWIDTH, sync->AckWidth);
934
935 if (scsi_get_resid(SCpnt) % 4 != 0 ||
936 scsi_get_resid(SCpnt) <= PAGE_SIZE ) {
937 data->TransferMode = MODE_IO8;
938 } else if (nsp_burst_mode == BURST_MEM32) {
939 data->TransferMode = MODE_MEM32;
940 } else if (nsp_burst_mode == BURST_IO32) {
941 data->TransferMode = MODE_IO32;
942 } else {
943 data->TransferMode = MODE_IO8;
944 }
945
946
947 nsp_setup_fifo(data, true);
948
949
950 data->FifoCount = 0;
951 nsp_index_write(base, POINTERCLR, POINTER_CLEAR |
952 ACK_COUNTER_CLEAR |
953 REQ_COUNTER_CLEAR |
954 HOST_COUNTER_CLEAR);
955
956 return 0;
957}
958
959#include "nsp_message.c"
960
961
962
963static irqreturn_t nspintr(int irq, void *dev_id)
964{
965 unsigned int base;
966 unsigned char irq_status, irq_phase, phase;
967 struct scsi_cmnd *tmpSC;
968 struct scsi_pointer *scsi_pointer;
969 unsigned char target, lun;
970 unsigned int *sync_neg;
971 int i, tmp;
972 nsp_hw_data *data;
973
974
975
976
977
978 if ( dev_id != NULL &&
979 ((scsi_info_t *)dev_id)->host != NULL ) {
980 scsi_info_t *info = (scsi_info_t *)dev_id;
981
982 data = (nsp_hw_data *)info->host->hostdata;
983 } else {
984 nsp_dbg(NSP_DEBUG_INTR, "host data wrong");
985 return IRQ_NONE;
986 }
987
988
989
990 base = data->BaseAddress;
991
992
993
994
995
996 nsp_write(base, IRQCONTROL, IRQCONTROL_IRQDISABLE);
997 irq_status = nsp_read(base, IRQSTATUS);
998
999 if ((irq_status == 0xff) || ((irq_status & IRQSTATUS_MASK) == 0)) {
1000 nsp_write(base, IRQCONTROL, 0);
1001
1002 return IRQ_NONE;
1003 }
1004
1005
1006
1007
1008
1009 phase = nsp_index_read(base, SCSIBUSMON);
1010 if((irq_status & IRQSTATUS_SCSI) != 0) {
1011 irq_phase = nsp_index_read(base, IRQPHASESENCE);
1012 } else {
1013 irq_phase = 0;
1014 }
1015
1016
1017
1018
1019
1020
1021
1022 if (data->TimerCount != 0) {
1023
1024 nsp_index_write(base, TIMERCOUNT, 0);
1025 nsp_index_write(base, TIMERCOUNT, 0);
1026 data->TimerCount = 0;
1027 }
1028
1029 if ((irq_status & IRQSTATUS_MASK) == IRQSTATUS_TIMER &&
1030 data->SelectionTimeOut == 0) {
1031
1032 nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR);
1033 return IRQ_HANDLED;
1034 }
1035
1036 nsp_write(base, IRQCONTROL, IRQCONTROL_TIMER_CLEAR | IRQCONTROL_FIFO_CLEAR);
1037
1038 if ((irq_status & IRQSTATUS_SCSI) &&
1039 (irq_phase & SCSI_RESET_IRQ)) {
1040 nsp_msg(KERN_ERR, "bus reset (power off?)");
1041
1042 nsphw_init(data);
1043 nsp_bus_reset(data);
1044
1045 if(data->CurrentSC != NULL) {
1046 tmpSC = data->CurrentSC;
1047 scsi_pointer = nsp_priv(tmpSC);
1048 tmpSC->result = (DID_RESET << 16) |
1049 ((scsi_pointer->Message & 0xff) << 8) |
1050 ((scsi_pointer->Status & 0xff) << 0);
1051 nsp_scsi_done(tmpSC);
1052 }
1053 return IRQ_HANDLED;
1054 }
1055
1056 if (data->CurrentSC == NULL) {
1057 nsp_msg(KERN_ERR, "CurrentSC==NULL irq_status=0x%x phase=0x%x irq_phase=0x%x this can't be happen. reset everything", irq_status, phase, irq_phase);
1058 nsphw_init(data);
1059 nsp_bus_reset(data);
1060 return IRQ_HANDLED;
1061 }
1062
1063 tmpSC = data->CurrentSC;
1064 scsi_pointer = nsp_priv(tmpSC);
1065 target = tmpSC->device->id;
1066 lun = tmpSC->device->lun;
1067 sync_neg = &(data->Sync[target].SyncNegotiation);
1068
1069
1070
1071
1072 if (irq_status & IRQSTATUS_SCSI) {
1073 if (irq_phase & RESELECT_IRQ) {
1074 nsp_dbg(NSP_DEBUG_INTR, "reselect");
1075 nsp_write(base, IRQCONTROL, IRQCONTROL_RESELECT_CLEAR);
1076 nsp_reselected(tmpSC);
1077 return IRQ_HANDLED;
1078 }
1079
1080 if ((irq_phase & (PHASE_CHANGE_IRQ | LATCHED_BUS_FREE)) == 0) {
1081 return IRQ_HANDLED;
1082 }
1083 }
1084
1085
1086
1087 switch (scsi_pointer->phase) {
1088 case PH_SELSTART:
1089
1090 if ((phase & BUSMON_BSY) == 0) {
1091
1092 if (data->SelectionTimeOut >= NSP_SELTIMEOUT) {
1093 nsp_dbg(NSP_DEBUG_INTR, "selection time out");
1094 data->SelectionTimeOut = 0;
1095 nsp_index_write(base, SCSIBUSCTRL, 0);
1096
1097 tmpSC->result = DID_TIME_OUT << 16;
1098 nsp_scsi_done(tmpSC);
1099
1100 return IRQ_HANDLED;
1101 }
1102 data->SelectionTimeOut += 1;
1103 nsp_start_timer(tmpSC, 1000/51);
1104 return IRQ_HANDLED;
1105 }
1106
1107
1108
1109 data->SelectionTimeOut = 0;
1110 scsi_pointer->phase = PH_SELECTED;
1111 nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN);
1112 udelay(1);
1113 nsp_index_write(base, SCSIBUSCTRL, SCSI_ATN | AUTODIRECTION | ACKENB);
1114 return IRQ_HANDLED;
1115
1116 case PH_RESELECT:
1117
1118
1119 if ((phase & BUSMON_PHASE_MASK) != BUSPHASE_MESSAGE_IN) {
1120
1121 tmpSC->result = DID_ABORT << 16;
1122 nsp_scsi_done(tmpSC);
1123 return IRQ_HANDLED;
1124 }
1125 fallthrough;
1126 default:
1127 if ((irq_status & (IRQSTATUS_SCSI | IRQSTATUS_FIFO)) == 0) {
1128 return IRQ_HANDLED;
1129 }
1130 break;
1131 }
1132
1133
1134
1135
1136
1137
1138
1139 if ((scsi_pointer->phase == PH_MSG_IN ||
1140 scsi_pointer->phase == PH_MSG_OUT) &&
1141 (irq_phase & LATCHED_BUS_FREE) != 0) {
1142 nsp_dbg(NSP_DEBUG_INTR, "normal disconnect irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase);
1143
1144
1145
1146
1147 if (scsi_pointer->Message == COMMAND_COMPLETE) {
1148 tmpSC->result = (DID_OK << 16) |
1149 ((scsi_pointer->Message & 0xff) << 8) |
1150 ((scsi_pointer->Status & 0xff) << 0);
1151 nsp_dbg(NSP_DEBUG_INTR, "command complete result=0x%x", tmpSC->result);
1152 nsp_scsi_done(tmpSC);
1153
1154 return IRQ_HANDLED;
1155 }
1156
1157 return IRQ_HANDLED;
1158 }
1159
1160
1161
1162 if (phase == 0) {
1163 nsp_msg(KERN_DEBUG, "unexpected bus free. irq_status=0x%x, phase=0x%x, irq_phase=0x%x", irq_status, phase, irq_phase);
1164
1165 *sync_neg = SYNC_NG;
1166 tmpSC->result = DID_ERROR << 16;
1167 nsp_scsi_done(tmpSC);
1168 return IRQ_HANDLED;
1169 }
1170
1171 switch (phase & BUSMON_PHASE_MASK) {
1172 case BUSPHASE_COMMAND:
1173 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_COMMAND");
1174 if ((phase & BUSMON_REQ) == 0) {
1175 nsp_dbg(NSP_DEBUG_INTR, "REQ == 0");
1176 return IRQ_HANDLED;
1177 }
1178
1179 scsi_pointer->phase = PH_COMMAND;
1180
1181 nsp_nexus(tmpSC);
1182
1183
1184 nsp_dbg(NSP_DEBUG_INTR, "cmd_len=%d", tmpSC->cmd_len);
1185 nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER);
1186 for (i = 0; i < tmpSC->cmd_len; i++) {
1187 nsp_index_write(base, COMMANDDATA, tmpSC->cmnd[i]);
1188 }
1189 nsp_index_write(base, COMMANDCTRL, CLEAR_COMMAND_POINTER | AUTO_COMMAND_GO);
1190 break;
1191
1192 case BUSPHASE_DATA_OUT:
1193 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_OUT");
1194
1195 scsi_pointer->phase = PH_DATA;
1196 scsi_pointer->have_data_in = IO_OUT;
1197
1198 nsp_pio_write(tmpSC);
1199
1200 break;
1201
1202 case BUSPHASE_DATA_IN:
1203 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_DATA_IN");
1204
1205 scsi_pointer->phase = PH_DATA;
1206 scsi_pointer->have_data_in = IO_IN;
1207
1208 nsp_pio_read(tmpSC);
1209
1210 break;
1211
1212 case BUSPHASE_STATUS:
1213 nsp_dataphase_bypass(tmpSC);
1214 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_STATUS");
1215
1216 scsi_pointer->phase = PH_STATUS;
1217
1218 scsi_pointer->Status = nsp_index_read(base, SCSIDATAWITHACK);
1219 nsp_dbg(NSP_DEBUG_INTR, "message=0x%x status=0x%x",
1220 scsi_pointer->Message, scsi_pointer->Status);
1221
1222 break;
1223
1224 case BUSPHASE_MESSAGE_OUT:
1225 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_OUT");
1226 if ((phase & BUSMON_REQ) == 0) {
1227 goto timer_out;
1228 }
1229
1230 scsi_pointer->phase = PH_MSG_OUT;
1231
1232
1233
1234 data->MsgLen = i = 0;
1235 data->MsgBuffer[i] = IDENTIFY(true, lun); i++;
1236
1237 if (*sync_neg == SYNC_NOT_YET) {
1238 data->Sync[target].SyncPeriod = 0;
1239 data->Sync[target].SyncOffset = 0;
1240
1241
1242 data->MsgBuffer[i] = EXTENDED_MESSAGE; i++;
1243 data->MsgBuffer[i] = 3; i++;
1244 data->MsgBuffer[i] = EXTENDED_SDTR; i++;
1245 data->MsgBuffer[i] = 0x0c; i++;
1246 data->MsgBuffer[i] = 15; i++;
1247
1248 }
1249 data->MsgLen = i;
1250
1251 nsp_analyze_sdtr(tmpSC);
1252 show_message(data);
1253 nsp_message_out(tmpSC);
1254 break;
1255
1256 case BUSPHASE_MESSAGE_IN:
1257 nsp_dataphase_bypass(tmpSC);
1258 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE_MESSAGE_IN");
1259 if ((phase & BUSMON_REQ) == 0) {
1260 goto timer_out;
1261 }
1262
1263 scsi_pointer->phase = PH_MSG_IN;
1264 nsp_message_in(tmpSC);
1265
1266
1267 if (*sync_neg == SYNC_NOT_YET) {
1268
1269
1270 if (data->MsgLen >= 5 &&
1271 data->MsgBuffer[0] == EXTENDED_MESSAGE &&
1272 data->MsgBuffer[1] == 3 &&
1273 data->MsgBuffer[2] == EXTENDED_SDTR ) {
1274 data->Sync[target].SyncPeriod = data->MsgBuffer[3];
1275 data->Sync[target].SyncOffset = data->MsgBuffer[4];
1276
1277 *sync_neg = SYNC_OK;
1278 } else {
1279 data->Sync[target].SyncPeriod = 0;
1280 data->Sync[target].SyncOffset = 0;
1281 *sync_neg = SYNC_NG;
1282 }
1283 nsp_analyze_sdtr(tmpSC);
1284 }
1285
1286
1287
1288 tmp = -1;
1289 for (i = 0; i < data->MsgLen; i++) {
1290 tmp = data->MsgBuffer[i];
1291 if (data->MsgBuffer[i] == EXTENDED_MESSAGE) {
1292 i += (1 + data->MsgBuffer[i+1]);
1293 }
1294 }
1295 scsi_pointer->Message = tmp;
1296
1297 nsp_dbg(NSP_DEBUG_INTR, "message=0x%x len=%d",
1298 scsi_pointer->Message, data->MsgLen);
1299 show_message(data);
1300
1301 break;
1302
1303 case BUSPHASE_SELECT:
1304 default:
1305 nsp_dbg(NSP_DEBUG_INTR, "BUSPHASE other");
1306
1307 break;
1308 }
1309
1310
1311 return IRQ_HANDLED;
1312
1313timer_out:
1314 nsp_start_timer(tmpSC, 1000/102);
1315 return IRQ_HANDLED;
1316}
1317
1318#ifdef NSP_DEBUG
1319#include "nsp_debug.c"
1320#endif
1321
1322
1323
1324
1325static struct Scsi_Host *nsp_detect(struct scsi_host_template *sht)
1326{
1327 struct Scsi_Host *host;
1328 nsp_hw_data *data_b = &nsp_data_base, *data;
1329
1330 nsp_dbg(NSP_DEBUG_INIT, "this_id=%d", sht->this_id);
1331 host = scsi_host_alloc(&nsp_driver_template, sizeof(nsp_hw_data));
1332 if (host == NULL) {
1333 nsp_dbg(NSP_DEBUG_INIT, "host failed");
1334 return NULL;
1335 }
1336
1337 memcpy(host->hostdata, data_b, sizeof(nsp_hw_data));
1338 data = (nsp_hw_data *)host->hostdata;
1339 data->ScsiInfo->host = host;
1340#ifdef NSP_DEBUG
1341 data->CmdId = 0;
1342#endif
1343
1344 nsp_dbg(NSP_DEBUG_INIT, "irq=%d,%d", data_b->IrqNumber, ((nsp_hw_data *)host->hostdata)->IrqNumber);
1345
1346 host->unique_id = data->BaseAddress;
1347 host->io_port = data->BaseAddress;
1348 host->n_io_port = data->NumAddress;
1349 host->irq = data->IrqNumber;
1350 host->base = data->MmioAddress;
1351
1352 spin_lock_init(&(data->Lock));
1353
1354 snprintf(data->nspinfo,
1355 sizeof(data->nspinfo),
1356 "NinjaSCSI-3/32Bi Driver $Revision: 1.23 $ IO:0x%04lx-0x%04lx MMIO(virt addr):0x%04lx IRQ:%02d",
1357 host->io_port, host->io_port + host->n_io_port - 1,
1358 host->base,
1359 host->irq);
1360 sht->name = data->nspinfo;
1361
1362 nsp_dbg(NSP_DEBUG_INIT, "end");
1363
1364
1365 return host;
1366}
1367
1368
1369
1370
1371static const char *nsp_info(struct Scsi_Host *shpnt)
1372{
1373 nsp_hw_data *data = (nsp_hw_data *)shpnt->hostdata;
1374
1375 return data->nspinfo;
1376}
1377
1378static int nsp_show_info(struct seq_file *m, struct Scsi_Host *host)
1379{
1380 int id;
1381 int speed;
1382 unsigned long flags;
1383 nsp_hw_data *data;
1384 int hostno;
1385
1386 hostno = host->host_no;
1387 data = (nsp_hw_data *)host->hostdata;
1388
1389 seq_puts(m, "NinjaSCSI status\n\n"
1390 "Driver version: $Revision: 1.23 $\n");
1391 seq_printf(m, "SCSI host No.: %d\n", hostno);
1392 seq_printf(m, "IRQ: %d\n", host->irq);
1393 seq_printf(m, "IO: 0x%lx-0x%lx\n", host->io_port, host->io_port + host->n_io_port - 1);
1394 seq_printf(m, "MMIO(virtual address): 0x%lx-0x%lx\n", host->base, host->base + data->MmioLength - 1);
1395 seq_printf(m, "sg_tablesize: %d\n", host->sg_tablesize);
1396
1397 seq_puts(m, "burst transfer mode: ");
1398 switch (nsp_burst_mode) {
1399 case BURST_IO8:
1400 seq_puts(m, "io8");
1401 break;
1402 case BURST_IO32:
1403 seq_puts(m, "io32");
1404 break;
1405 case BURST_MEM32:
1406 seq_puts(m, "mem32");
1407 break;
1408 default:
1409 seq_puts(m, "???");
1410 break;
1411 }
1412 seq_putc(m, '\n');
1413
1414
1415 spin_lock_irqsave(&(data->Lock), flags);
1416 seq_printf(m, "CurrentSC: 0x%p\n\n", data->CurrentSC);
1417 spin_unlock_irqrestore(&(data->Lock), flags);
1418
1419 seq_puts(m, "SDTR status\n");
1420 for(id = 0; id < ARRAY_SIZE(data->Sync); id++) {
1421
1422 seq_printf(m, "id %d: ", id);
1423
1424 if (id == host->this_id) {
1425 seq_puts(m, "----- NinjaSCSI-3 host adapter\n");
1426 continue;
1427 }
1428
1429 switch(data->Sync[id].SyncNegotiation) {
1430 case SYNC_OK:
1431 seq_puts(m, " sync");
1432 break;
1433 case SYNC_NG:
1434 seq_puts(m, "async");
1435 break;
1436 case SYNC_NOT_YET:
1437 seq_puts(m, " none");
1438 break;
1439 default:
1440 seq_puts(m, "?????");
1441 break;
1442 }
1443
1444 if (data->Sync[id].SyncPeriod != 0) {
1445 speed = 1000000 / (data->Sync[id].SyncPeriod * 4);
1446
1447 seq_printf(m, " transfer %d.%dMB/s, offset %d",
1448 speed / 1000,
1449 speed % 1000,
1450 data->Sync[id].SyncOffset
1451 );
1452 }
1453 seq_putc(m, '\n');
1454 }
1455 return 0;
1456}
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470static int nsp_bus_reset(nsp_hw_data *data)
1471{
1472 unsigned int base = data->BaseAddress;
1473 int i;
1474
1475 nsp_write(base, IRQCONTROL, IRQCONTROL_ALLMASK);
1476
1477 nsp_index_write(base, SCSIBUSCTRL, SCSI_RST);
1478 mdelay(100);
1479 nsp_index_write(base, SCSIBUSCTRL, 0);
1480 for(i = 0; i < 5; i++) {
1481 nsp_index_read(base, IRQPHASESENCE);
1482 }
1483
1484 nsphw_init_sync(data);
1485
1486 nsp_write(base, IRQCONTROL, IRQCONTROL_ALLCLEAR);
1487
1488 return SUCCESS;
1489}
1490
1491static int nsp_eh_bus_reset(struct scsi_cmnd *SCpnt)
1492{
1493 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
1494
1495 nsp_dbg(NSP_DEBUG_BUSRESET, "SCpnt=0x%p", SCpnt);
1496
1497 return nsp_bus_reset(data);
1498}
1499
1500static int nsp_eh_host_reset(struct scsi_cmnd *SCpnt)
1501{
1502 nsp_hw_data *data = (nsp_hw_data *)SCpnt->device->host->hostdata;
1503
1504 nsp_dbg(NSP_DEBUG_BUSRESET, "in");
1505
1506 nsphw_init(data);
1507
1508 return SUCCESS;
1509}
1510
1511
1512
1513
1514
1515
1516static int nsp_cs_probe(struct pcmcia_device *link)
1517{
1518 scsi_info_t *info;
1519 nsp_hw_data *data = &nsp_data_base;
1520 int ret;
1521
1522 nsp_dbg(NSP_DEBUG_INIT, "in");
1523
1524
1525 info = kzalloc(sizeof(*info), GFP_KERNEL);
1526 if (info == NULL) { return -ENOMEM; }
1527 info->p_dev = link;
1528 link->priv = info;
1529 data->ScsiInfo = info;
1530
1531 nsp_dbg(NSP_DEBUG_INIT, "info=0x%p", info);
1532
1533 ret = nsp_cs_config(link);
1534
1535 nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link);
1536 return ret;
1537}
1538
1539
1540static void nsp_cs_detach(struct pcmcia_device *link)
1541{
1542 nsp_dbg(NSP_DEBUG_INIT, "in, link=0x%p", link);
1543
1544 ((scsi_info_t *)link->priv)->stop = 1;
1545 nsp_cs_release(link);
1546
1547 kfree(link->priv);
1548 link->priv = NULL;
1549}
1550
1551
1552static int nsp_cs_config_check(struct pcmcia_device *p_dev, void *priv_data)
1553{
1554 nsp_hw_data *data = priv_data;
1555
1556 if (p_dev->config_index == 0)
1557 return -ENODEV;
1558
1559
1560 if (pcmcia_request_io(p_dev) != 0)
1561 goto next_entry;
1562
1563 if (resource_size(p_dev->resource[2])) {
1564 p_dev->resource[2]->flags |= (WIN_DATA_WIDTH_16 |
1565 WIN_MEMORY_TYPE_CM |
1566 WIN_ENABLE);
1567 if (p_dev->resource[2]->end < 0x1000)
1568 p_dev->resource[2]->end = 0x1000;
1569 if (pcmcia_request_window(p_dev, p_dev->resource[2], 0) != 0)
1570 goto next_entry;
1571 if (pcmcia_map_mem_page(p_dev, p_dev->resource[2],
1572 p_dev->card_addr) != 0)
1573 goto next_entry;
1574
1575 data->MmioAddress = (unsigned long)
1576 ioremap(p_dev->resource[2]->start,
1577 resource_size(p_dev->resource[2]));
1578 if (!data->MmioAddress)
1579 goto next_entry;
1580
1581 data->MmioLength = resource_size(p_dev->resource[2]);
1582 }
1583
1584 return 0;
1585
1586next_entry:
1587 nsp_dbg(NSP_DEBUG_INIT, "next");
1588 pcmcia_disable_device(p_dev);
1589 return -ENODEV;
1590}
1591
1592static int nsp_cs_config(struct pcmcia_device *link)
1593{
1594 int ret;
1595 scsi_info_t *info = link->priv;
1596 struct Scsi_Host *host;
1597 nsp_hw_data *data = &nsp_data_base;
1598
1599 nsp_dbg(NSP_DEBUG_INIT, "in");
1600
1601 link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_CHECK_VCC |
1602 CONF_AUTO_SET_VPP | CONF_AUTO_AUDIO | CONF_AUTO_SET_IOMEM |
1603 CONF_AUTO_SET_IO;
1604
1605 ret = pcmcia_loop_config(link, nsp_cs_config_check, data);
1606 if (ret)
1607 goto cs_failed;
1608
1609 if (pcmcia_request_irq(link, nspintr))
1610 goto cs_failed;
1611
1612 ret = pcmcia_enable_device(link);
1613 if (ret)
1614 goto cs_failed;
1615
1616 if (free_ports) {
1617 if (link->resource[0]) {
1618 release_region(link->resource[0]->start,
1619 resource_size(link->resource[0]));
1620 }
1621 if (link->resource[1]) {
1622 release_region(link->resource[1]->start,
1623 resource_size(link->resource[1]));
1624 }
1625 }
1626
1627
1628 data->BaseAddress = link->resource[0]->start;
1629 data->NumAddress = resource_size(link->resource[0]);
1630 data->IrqNumber = link->irq;
1631
1632 nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d",
1633 data->BaseAddress, data->NumAddress, data->IrqNumber);
1634
1635 nsphw_init(data);
1636
1637 host = nsp_detect(&nsp_driver_template);
1638
1639 if (host == NULL) {
1640 nsp_dbg(NSP_DEBUG_INIT, "detect failed");
1641 goto cs_failed;
1642 }
1643
1644
1645 ret = scsi_add_host (host, NULL);
1646 if (ret)
1647 goto cs_failed;
1648
1649 scsi_scan_host(host);
1650
1651 info->host = host;
1652
1653 return 0;
1654
1655 cs_failed:
1656 nsp_dbg(NSP_DEBUG_INIT, "config fail");
1657 nsp_cs_release(link);
1658
1659 return -ENODEV;
1660}
1661
1662
1663static void nsp_cs_release(struct pcmcia_device *link)
1664{
1665 scsi_info_t *info = link->priv;
1666 nsp_hw_data *data = NULL;
1667
1668 if (info->host == NULL) {
1669 nsp_msg(KERN_DEBUG, "unexpected card release call.");
1670 } else {
1671 data = (nsp_hw_data *)info->host->hostdata;
1672 }
1673
1674 nsp_dbg(NSP_DEBUG_INIT, "link=0x%p", link);
1675
1676
1677 if (info->host != NULL) {
1678 scsi_remove_host(info->host);
1679 }
1680
1681 if (resource_size(link->resource[2])) {
1682 if (data != NULL) {
1683 iounmap((void *)(data->MmioAddress));
1684 }
1685 }
1686 pcmcia_disable_device(link);
1687
1688 if (info->host != NULL) {
1689 scsi_host_put(info->host);
1690 }
1691}
1692
1693static int nsp_cs_suspend(struct pcmcia_device *link)
1694{
1695 scsi_info_t *info = link->priv;
1696 nsp_hw_data *data;
1697
1698 nsp_dbg(NSP_DEBUG_INIT, "event: suspend");
1699
1700 if (info->host != NULL) {
1701 nsp_msg(KERN_INFO, "clear SDTR status");
1702
1703 data = (nsp_hw_data *)info->host->hostdata;
1704
1705 nsphw_init_sync(data);
1706 }
1707
1708 info->stop = 1;
1709
1710 return 0;
1711}
1712
1713static int nsp_cs_resume(struct pcmcia_device *link)
1714{
1715 scsi_info_t *info = link->priv;
1716 nsp_hw_data *data;
1717
1718 nsp_dbg(NSP_DEBUG_INIT, "event: resume");
1719
1720 info->stop = 0;
1721
1722 if (info->host != NULL) {
1723 nsp_msg(KERN_INFO, "reset host and bus");
1724
1725 data = (nsp_hw_data *)info->host->hostdata;
1726
1727 nsphw_init (data);
1728 nsp_bus_reset(data);
1729 }
1730
1731 return 0;
1732}
1733
1734
1735
1736
1737static const struct pcmcia_device_id nsp_cs_ids[] = {
1738 PCMCIA_DEVICE_PROD_ID123("IO DATA", "CBSC16 ", "1", 0x547e66dc, 0x0d63a3fd, 0x51de003a),
1739 PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-001", "1", 0x534c02bc, 0x52008408, 0x51de003a),
1740 PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-002", "1", 0x534c02bc, 0xcb09d5b2, 0x51de003a),
1741 PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-003", "1", 0x534c02bc, 0xbc0ee524, 0x51de003a),
1742 PCMCIA_DEVICE_PROD_ID123("KME ", "SCSI-CARD-004", "1", 0x534c02bc, 0x226a7087, 0x51de003a),
1743 PCMCIA_DEVICE_PROD_ID123("WBT", "NinjaSCSI-3", "R1.0", 0xc7ba805f, 0xfdc7c97d, 0x6973710e),
1744 PCMCIA_DEVICE_PROD_ID123("WORKBIT", "UltraNinja-16", "1", 0x28191418, 0xb70f4b09, 0x51de003a),
1745 PCMCIA_DEVICE_NULL
1746};
1747MODULE_DEVICE_TABLE(pcmcia, nsp_cs_ids);
1748
1749static struct pcmcia_driver nsp_driver = {
1750 .owner = THIS_MODULE,
1751 .name = "nsp_cs",
1752 .probe = nsp_cs_probe,
1753 .remove = nsp_cs_detach,
1754 .id_table = nsp_cs_ids,
1755 .suspend = nsp_cs_suspend,
1756 .resume = nsp_cs_resume,
1757};
1758module_pcmcia_driver(nsp_driver);
1759
1760
1761
