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