summaryrefslogtreecommitdiffstats
path: root/drivers/isdn/hardware/eicon/io.c
blob: 6fd9b007417dfd640eeabbe2e39f77e141feb35e (plain)
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852

/*
 *
  Copyright (c) Eicon Networks, 2002.
 *
  This source file is supplied for the use with
  Eicon Networks range of DIVA Server Adapters.
 *
  Eicon File Revision :    2.1
 *
  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2, or (at your option)
  any later version.
 *
  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY OF ANY KIND WHATSOEVER INCLUDING ANY
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU General Public License for more details.
 *
  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */
#include "platform.h"
#include "di_defs.h"
#include "pc.h"
#include "pr_pc.h"
#include "divasync.h"
#define MIPS_SCOM
#include "pkmaint.h" /* pc_main.h, packed in os-dependent fashion */
#include "di.h"
#include "mi_pc.h"
#include "io.h"
extern ADAPTER * adapter[MAX_ADAPTER];
extern PISDN_ADAPTER IoAdapters[MAX_ADAPTER];
void request (PISDN_ADAPTER, ENTITY *);
static void pcm_req (PISDN_ADAPTER, ENTITY *);
/* --------------------------------------------------------------------------
  local functions
  -------------------------------------------------------------------------- */
#define ReqFunc(N) \
static void Request##N(ENTITY *e) \
{ if ( IoAdapters[N] ) (* IoAdapters[N]->DIRequest)(IoAdapters[N], e) ; }
ReqFunc(0)
ReqFunc(1)
ReqFunc(2)
ReqFunc(3)
ReqFunc(4)
ReqFunc(5)
ReqFunc(6)
ReqFunc(7)
ReqFunc(8)
ReqFunc(9)
ReqFunc(10)
ReqFunc(11)
ReqFunc(12)
ReqFunc(13)
ReqFunc(14)
ReqFunc(15)
IDI_CALL Requests[MAX_ADAPTER] =
{ &Request0, &Request1, &Request2, &Request3,
 &Request4, &Request5, &Request6, &Request7,
 &Request8, &Request9, &Request10, &Request11,
 &Request12, &Request13, &Request14, &Request15
};
/*****************************************************************************/
/*
  This array should indicate all new services, that this version of XDI
  is able to provide to his clients
  */
static byte extended_xdi_features[DIVA_XDI_EXTENDED_FEATURES_MAX_SZ+1] = {
 (DIVA_XDI_EXTENDED_FEATURES_VALID       |
  DIVA_XDI_EXTENDED_FEATURE_SDRAM_BAR    |
  DIVA_XDI_EXTENDED_FEATURE_CAPI_PRMS    |
#if defined(DIVA_IDI_RX_DMA)
  DIVA_XDI_EXTENDED_FEATURE_CMA          |
  DIVA_XDI_EXTENDED_FEATURE_RX_DMA       |
  DIVA_XDI_EXTENDED_FEATURE_MANAGEMENT_DMA |
#endif
  DIVA_XDI_EXTENDED_FEATURE_NO_CANCEL_RC),
 0
};
/*****************************************************************************/
void
dump_xlog_buffer (PISDN_ADAPTER IoAdapter, Xdesc *xlogDesc)
{
 dword   logLen ;
 word *Xlog   = xlogDesc->buf ;
 word  logCnt = xlogDesc->cnt ;
 word  logOut = xlogDesc->out / sizeof(*Xlog) ;
 DBG_FTL(("%s: ************* XLOG recovery (%d) *************",
          &IoAdapter->Name[0], (int)logCnt))
 DBG_FTL(("Microcode: %s", &IoAdapter->ProtocolIdString[0]))
 for ( ; logCnt > 0 ; --logCnt )
 {
  if ( !GET_WORD(&Xlog[logOut]) )
  {
   if ( --logCnt == 0 )
    break ;
   logOut = 0 ;
  }
  if ( GET_WORD(&Xlog[logOut]) <= (logOut * sizeof(*Xlog)) )
  {
   if ( logCnt > 2 )
   {
    DBG_FTL(("Possibly corrupted XLOG: %d entries left",
             (int)logCnt))
   }
   break ;
  }
  logLen = (dword)(GET_WORD(&Xlog[logOut]) - (logOut * sizeof(*Xlog))) ;
  DBG_FTL_MXLOG(( (char *)&Xlog[logOut + 1], (dword)(logLen - 2) ))
  logOut = (GET_WORD(&Xlog[logOut]) + 1) / sizeof(*Xlog) ;
 }
 DBG_FTL(("%s: ***************** end of XLOG *****************",
          &IoAdapter->Name[0]))
}
/*****************************************************************************/
#if defined(XDI_USE_XLOG)
static char *(ExceptionCauseTable[]) =
{
 "Interrupt",
 "TLB mod /IBOUND",
 "TLB load /DBOUND",
 "TLB store",
 "Address error load",
 "Address error store",
 "Instruction load bus error",
 "Data load/store bus error",
 "Syscall",
 "Breakpoint",
 "Reverd instruction",
 "Coprocessor unusable",
 "Overflow",
 "TRAP",
 "VCEI",
 "Floating Point Exception",
 "CP2",
 "Reserved 17",
 "Reserved 18",
 "Reserved 19",
 "Reserved 20",
 "Reserved 21",
 "Reserved 22",
 "WATCH",
 "Reserved 24",
 "Reserved 25",
 "Reserved 26",
 "Reserved 27",
 "Reserved 28",
 "Reserved 29",
 "Reserved 30",
 "VCED"
} ;
#endif
void
dump_trap_frame (PISDN_ADAPTER IoAdapter, byte __iomem *exceptionFrame)
{
 MP_XCPTC __iomem *xcept = (MP_XCPTC __iomem *)exceptionFrame ;
 dword    __iomem *regs;
 regs  = &xcept->regs[0] ;
 DBG_FTL(("%s: ***************** CPU TRAPPED *****************",
          &IoAdapter->Name[0]))
 DBG_FTL(("Microcode: %s", &IoAdapter->ProtocolIdString[0]))
 DBG_FTL(("Cause: %s",
          ExceptionCauseTable[(READ_DWORD(&xcept->cr) & 0x0000007c) >> 2]))
 DBG_FTL(("sr    0x%08x cr    0x%08x epc   0x%08x vaddr 0x%08x",
          READ_DWORD(&xcept->sr), READ_DWORD(&xcept->cr),
					READ_DWORD(&xcept->epc), READ_DWORD(&xcept->vaddr)))
 DBG_FTL(("zero  0x%08x at    0x%08x v0    0x%08x v1    0x%08x",
          READ_DWORD(&regs[ 0]), READ_DWORD(&regs[ 1]),
					READ_DWORD(&regs[ 2]), READ_DWORD(&regs[ 3])))
 DBG_FTL(("a0    0x%08x a1    0x%08x a2    0x%08x a3    0x%08x",
          READ_DWORD(&regs[ 4]), READ_DWORD(&regs[ 5]),
					READ_DWORD(&regs[ 6]), READ_DWORD(&regs[ 7])))
 DBG_FTL(("t0    0x%08x t1    0x%08x t2    0x%08x t3    0x%08x",
          READ_DWORD(&regs[ 8]), READ_DWORD(&regs[ 9]),
					READ_DWORD(&regs[10]), READ_DWORD(&regs[11])))
 DBG_FTL(("t4    0x%08x t5    0x%08x t6    0x%08x t7    0x%08x",
          READ_DWORD(&regs[12]), READ_DWORD(&regs[13]),
					READ_DWORD(&regs[14]), READ_DWORD(&regs[15])))
 DBG_FTL(("s0    0x%08x s1    0x%08x s2    0x%08x s3    0x%08x",
          READ_DWORD(&regs[16]), READ_DWORD(&regs[17]),
					READ_DWORD(&regs[18]), READ_DWORD(&regs[19])))
 DBG_FTL(("s4    0x%08x s5    0x%08x s6    0x%08x s7    0x%08x",
          READ_DWORD(&regs[20]), READ_DWORD(&regs[21]),
					READ_DWORD(&regs[22]), READ_DWORD(&regs[23])))
 DBG_FTL(("t8    0x%08x t9    0x%08x k0    0x%08x k1    0x%08x",
          READ_DWORD(&regs[24]), READ_DWORD(&regs[25]),
					READ_DWORD(&regs[26]), READ_DWORD(&regs[27])))
 DBG_FTL(("gp    0x%08x sp    0x%08x s8    0x%08x ra    0x%08x",
          READ_DWORD(&regs[28]), READ_DWORD(&regs[29]),
					READ_DWORD(&regs[30]), READ_DWORD(&regs[31])))
 DBG_FTL(("md    0x%08x|%08x         resvd 0x%08x class 0x%08x",
          READ_DWORD(&xcept->mdhi), READ_DWORD(&xcept->mdlo),
					READ_DWORD(&xcept->reseverd), READ_DWORD(&xcept->xclass)))
}
/* --------------------------------------------------------------------------
  Real XDI Request function
  -------------------------------------------------------------------------- */
void request(PISDN_ADAPTER IoAdapter, ENTITY * e)
{
 byte i;
 diva_os_spin_lock_magic_t irql;
/*
 * if the Req field in the entity structure is 0,
 * we treat this request as a special function call
 */
 if ( !e->Req )
 {
  IDI_SYNC_REQ *syncReq = (IDI_SYNC_REQ *)e ;
  switch (e->Rc)
  {
#if defined(DIVA_IDI_RX_DMA)
    case IDI_SYNC_REQ_DMA_DESCRIPTOR_OPERATION: {
      diva_xdi_dma_descriptor_operation_t* pI = \
                                   &syncReq->xdi_dma_descriptor_operation.info;
      if (!IoAdapter->dma_map) {
        pI->operation         = -1;
        pI->descriptor_number = -1;
        return;
      }
      diva_os_enter_spin_lock (&IoAdapter->data_spin_lock, &irql, "dma_op");
      if (pI->operation == IDI_SYNC_REQ_DMA_DESCRIPTOR_ALLOC) {
        pI->descriptor_number = diva_alloc_dma_map_entry (\
                               (struct _diva_dma_map_entry*)IoAdapter->dma_map);
        if (pI->descriptor_number >= 0) {
          dword dma_magic;
          void* local_addr;
          diva_get_dma_map_entry (\
                               (struct _diva_dma_map_entry*)IoAdapter->dma_map,
                               pI->descriptor_number,
                               &local_addr, &dma_magic);
          pI->descriptor_address  = local_addr;
          pI->descriptor_magic    = dma_magic;
          pI->operation           = 0;
        } else {
          pI->operation           = -1;
        }
      } else if ((pI->operation == IDI_SYNC_REQ_DMA_DESCRIPTOR_FREE) &&
                 (pI->descriptor_number >= 0)) {
        diva_free_dma_map_entry((struct _diva_dma_map_entry*)IoAdapter->dma_map,
                                pI->descriptor_number);
        pI->descriptor_number = -1;
        pI->operation         = 0;
      } else {
        pI->descriptor_number = -1;
        pI->operation         = -1;
      }
      diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "dma_op");
    } return;
#endif
    case IDI_SYNC_REQ_XDI_GET_LOGICAL_ADAPTER_NUMBER: {
      diva_xdi_get_logical_adapter_number_s_t *pI = \
                                     &syncReq->xdi_logical_adapter_number.info;
      pI->logical_adapter_number = IoAdapter->ANum;
      pI->controller = IoAdapter->ControllerNumber;
      pI->total_controllers = IoAdapter->Properties.Adapters;
    } return;
    case IDI_SYNC_REQ_XDI_GET_CAPI_PARAMS: {
       diva_xdi_get_capi_parameters_t prms, *pI = &syncReq->xdi_capi_prms.info;
       memset (&prms, 0x00, sizeof(prms));
       prms.structure_length = min_t(size_t, sizeof(prms), pI->structure_length);
       memset (pI, 0x00, pI->structure_length);
       prms.flag_dynamic_l1_down    = (IoAdapter->capi_cfg.cfg_1 & \
         DIVA_XDI_CAPI_CFG_1_DYNAMIC_L1_ON) ? 1 : 0;
       prms.group_optimization_enabled = (IoAdapter->capi_cfg.cfg_1 & \
         DIVA_XDI_CAPI_CFG_1_GROUP_POPTIMIZATION_ON) ? 1 : 0;
       memcpy (pI, &prms, prms.structure_length);
      } return;
    case IDI_SYNC_REQ_XDI_GET_ADAPTER_SDRAM_BAR:
      syncReq->xdi_sdram_bar.info.bar = IoAdapter->sdram_bar;
      return;
    case IDI_SYNC_REQ_XDI_GET_EXTENDED_FEATURES: {
      dword i;
      diva_xdi_get_extended_xdi_features_t* pI =\
                                 &syncReq->xdi_extended_features.info;
      pI->buffer_length_in_bytes &= ~0x80000000;
      if (pI->buffer_length_in_bytes && pI->features) {
        memset (pI->features, 0x00, pI->buffer_length_in_bytes);
      }
      for (i = 0; ((pI->features) && (i < pI->buffer_length_in_bytes) &&
                   (i < DIVA_XDI_EXTENDED_FEATURES_MAX_SZ)); i++) {
        pI->features[i] = extended_xdi_features[i];
      }
      if ((pI->buffer_length_in_bytes < DIVA_XDI_EXTENDED_FEATURES_MAX_SZ) ||
          (!pI->features)) {
        pI->buffer_length_in_bytes =\
                           (0x80000000 | DIVA_XDI_EXTENDED_FEATURES_MAX_SZ);
      }
     } return;
    case IDI_SYNC_REQ_XDI_GET_STREAM:
      if (IoAdapter) {
        diva_xdi_provide_istream_info (&IoAdapter->a,
                                       &syncReq->xdi_stream_info.info);
      } else {
        syncReq->xdi_stream_info.info.provided_service = 0;
      }
      return;
  case IDI_SYNC_REQ_GET_NAME:
   if ( IoAdapter )
   {
    strcpy (&syncReq->GetName.name[0], IoAdapter->Name) ;
    DBG_TRC(("xdi: Adapter %d / Name '%s'",
             IoAdapter->ANum, IoAdapter->Name))
    return ;
   }
   syncReq->GetName.name[0] = '\0' ;
   break ;
  case IDI_SYNC_REQ_GET_SERIAL:
   if ( IoAdapter )
   {
    syncReq->GetSerial.serial = IoAdapter->serialNo ;
    DBG_TRC(("xdi: Adapter %d / SerialNo %ld",
             IoAdapter->ANum, IoAdapter->serialNo))
    return ;
   }
   syncReq->GetSerial.serial = 0 ;
   break ;
  case IDI_SYNC_REQ_GET_CARDTYPE:
   if ( IoAdapter )
   {
    syncReq->GetCardType.cardtype = IoAdapter->cardType ;
    DBG_TRC(("xdi: Adapter %d / CardType %ld",
             IoAdapter->ANum, IoAdapter->cardType))
    return ;
   }
   syncReq->GetCardType.cardtype = 0 ;
   break ;
  case IDI_SYNC_REQ_GET_XLOG:
   if ( IoAdapter )
   {
    pcm_req (IoAdapter, e) ;
    return ;
   }
   e->Ind = 0 ;
   break ;
  case IDI_SYNC_REQ_GET_DBG_XLOG:
   if ( IoAdapter )
   {
    pcm_req (IoAdapter, e) ;
    return ;
   }
   e->Ind = 0 ;
   break ;
  case IDI_SYNC_REQ_GET_FEATURES:
   if ( IoAdapter )
   {
    syncReq->GetFeatures.features =
      (unsigned short)IoAdapter->features ;
    return ;
   }
   syncReq->GetFeatures.features = 0 ;
   break ;
        case IDI_SYNC_REQ_PORTDRV_HOOK:
            if ( IoAdapter )
            {
                DBG_TRC(("Xdi:IDI_SYNC_REQ_PORTDRV_HOOK - ignored"))
                return ;
            }
            break;
  }
  if ( IoAdapter )
  {
   return ;
  }
 }
 DBG_TRC(("xdi: Id 0x%x / Req 0x%x / Rc 0x%x", e->Id, e->Req, e->Rc))
 if ( !IoAdapter )
 {
  DBG_FTL(("xdi: uninitialized Adapter used - ignore request"))
  return ;
 }
 diva_os_enter_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req");
/*
 * assign an entity
 */
 if ( !(e->Id &0x1f) )
 {
  if ( IoAdapter->e_count >= IoAdapter->e_max )
  {
   DBG_FTL(("xdi: all Ids in use (max=%d) --> Req ignored",
            IoAdapter->e_max))
   diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req");
   return ;
  }
/*
 * find a new free id
 */
  for ( i = 1 ; IoAdapter->e_tbl[i].e ; ++i ) ;
  IoAdapter->e_tbl[i].e = e ;
  IoAdapter->e_count++ ;
  e->No = (byte)i ;
  e->More = 0 ;
  e->RCurrent = 0xff ;
 }
 else
 {
  i = e->No ;
 }
/*
 * if the entity is still busy, ignore the request call
 */
 if ( e->More & XBUSY )
 {
  DBG_FTL(("xdi: Id 0x%x busy --> Req 0x%x ignored", e->Id, e->Req))
  if ( !IoAdapter->trapped && IoAdapter->trapFnc )
  {
   IoAdapter->trapFnc (IoAdapter) ;
      /*
        Firs trap, also notify user if supported
       */
      if (IoAdapter->trapped && IoAdapter->os_trap_nfy_Fnc) {
        (*(IoAdapter->os_trap_nfy_Fnc))(IoAdapter, IoAdapter->ANum);
      }
  }
  diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req");
  return ;
 }
/*
 * initialize transmit status variables
 */
 e->More |= XBUSY ;
 e->More &= ~XMOREF ;
 e->XCurrent = 0 ;
 e->XOffset = 0 ;
/*
 * queue this entity in the adapter request queue
 */
 IoAdapter->e_tbl[i].next = 0 ;
 if ( IoAdapter->head )
 {
  IoAdapter->e_tbl[IoAdapter->tail].next = i ;
  IoAdapter->tail = i ;
 }
 else
 {
  IoAdapter->head = i ;
  IoAdapter->tail = i ;
 }
/*
 * queue the DPC to process the request
 */
 diva_os_schedule_soft_isr (&IoAdapter->req_soft_isr);
 diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req");
}
/* ---------------------------------------------------------------------
  Main DPC routine
   --------------------------------------------------------------------- */
void DIDpcRoutine (struct _diva_os_soft_isr* psoft_isr, void* Context) {
 PISDN_ADAPTER IoAdapter  = (PISDN_ADAPTER)Context ;
 ADAPTER* a        = &IoAdapter->a ;
 diva_os_atomic_t* pin_dpc = &IoAdapter->in_dpc;
 if (diva_os_atomic_increment (pin_dpc) == 1) {
  do {
   if ( IoAdapter->tst_irq (a) )
   {
    if ( !IoAdapter->Unavailable )
     IoAdapter->dpc (a) ;
    IoAdapter->clr_irq (a) ;
   }
   IoAdapter->out (a) ;
  } while (diva_os_atomic_decrement (pin_dpc) > 0);
  /* ----------------------------------------------------------------
    Look for XLOG request (cards with indirect addressing)
    ---------------------------------------------------------------- */
  if (IoAdapter->pcm_pending) {
   struct pc_maint *pcm;
   diva_os_spin_lock_magic_t OldIrql ;
   diva_os_enter_spin_lock (&IoAdapter->data_spin_lock,
                &OldIrql,
                "data_dpc");
   pcm = (struct pc_maint *)IoAdapter->pcm_data;
   switch (IoAdapter->pcm_pending) {
    case 1: /* ask card for XLOG */
     a->ram_out (a, &IoAdapter->pcm->rc, 0) ;
     a->ram_out (a, &IoAdapter->pcm->req, pcm->req) ;
     IoAdapter->pcm_pending = 2;
     break;
    case 2: /* Try to get XLOG from the card */
     if ((int)(a->ram_in (a, &IoAdapter->pcm->rc))) {
      a->ram_in_buffer (a, IoAdapter->pcm, pcm, sizeof(*pcm)) ;
      IoAdapter->pcm_pending = 3;
     }
     break;
    case 3: /* let XDI recovery XLOG */
     break;
   }
   diva_os_leave_spin_lock (&IoAdapter->data_spin_lock,
                &OldIrql,
                "data_dpc");
  }
  /* ---------------------------------------------------------------- */
 }
}
/* --------------------------------------------------------------------------
  XLOG interface
  -------------------------------------------------------------------------- */
static void
pcm_req (PISDN_ADAPTER IoAdapter, ENTITY *e)
{
 diva_os_spin_lock_magic_t OldIrql ;
 int              i, rc ;
 ADAPTER         *a = &IoAdapter->a ;
 struct pc_maint *pcm = (struct pc_maint *)&e->Ind ;
/*
 * special handling of I/O based card interface
 * the memory access isn't an atomic operation !
 */
 if ( IoAdapter->Properties.Card == CARD_MAE )
 {
  diva_os_enter_spin_lock (&IoAdapter->data_spin_lock,
               &OldIrql,
               "data_pcm_1");
  IoAdapter->pcm_data = (void *)pcm;
  IoAdapter->pcm_pending = 1;
  diva_os_schedule_soft_isr (&IoAdapter->req_soft_isr);
  diva_os_leave_spin_lock (&IoAdapter->data_spin_lock,
               &OldIrql,
               "data_pcm_1");
  for ( rc = 0, i = (IoAdapter->trapped ? 3000 : 250) ; !rc && (i > 0) ; --i )
  {
   diva_os_sleep (1) ;
   if (IoAdapter->pcm_pending == 3) {
    diva_os_enter_spin_lock (&IoAdapter->data_spin_lock,
                 &OldIrql,
                 "data_pcm_3");
    IoAdapter->pcm_pending = 0;
    IoAdapter->pcm_data    = NULL ;
    diva_os_leave_spin_lock (&IoAdapter->data_spin_lock,
                 &OldIrql,
                 "data_pcm_3");
    return ;
   }
   diva_os_enter_spin_lock (&IoAdapter->data_spin_lock,
                &OldIrql,
                "data_pcm_2");
   diva_os_schedule_soft_isr (&IoAdapter->req_soft_isr);
   diva_os_leave_spin_lock (&IoAdapter->data_spin_lock,
                &OldIrql,
                "data_pcm_2");
  }
  diva_os_enter_spin_lock (&IoAdapter->data_spin_lock,
               &OldIrql,
               "data_pcm_4");
  IoAdapter->pcm_pending = 0;
  IoAdapter->pcm_data    = NULL ;
  diva_os_leave_spin_lock (&IoAdapter->data_spin_lock,
               &OldIrql,
               "data_pcm_4");
  goto Trapped ;
 }
/*
 * memory based shared ram is accessible from different
 * processors without disturbing concurrent processes.
 */
 a->ram_out (a, &IoAdapter->pcm->rc, 0) ;
 a->ram_out (a, &IoAdapter->pcm->req, pcm->req) ;
 for ( i = (IoAdapter->trapped ? 3000 : 250) ; --i > 0 ; )
 {
  diva_os_sleep (1) ;
  rc = (int)(a->ram_in (a, &IoAdapter->pcm->rc)) ;
  if ( rc )
  {
   a->ram_in_buffer (a, IoAdapter->pcm, pcm, sizeof(*pcm)) ;
   return ;
  }
 }
Trapped:
 if ( IoAdapter->trapFnc )
 {
    int trapped = IoAdapter->trapped;
  IoAdapter->trapFnc (IoAdapter) ;
    /*
      Firs trap, also notify user if supported
     */
    if (!trapped && IoAdapter->trapped && IoAdapter->os_trap_nfy_Fnc) {
      (*(IoAdapter->os_trap_nfy_Fnc))(IoAdapter, IoAdapter->ANum);
    }
 }
}
/*------------------------------------------------------------------*/
/* ram access functions for memory mapped cards                     */
/*------------------------------------------------------------------*/
byte mem_in (ADAPTER *a, void *addr)
{
 byte val;
 volatile byte __iomem *Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 val = READ_BYTE(Base + (unsigned long)addr);
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
 return (val);
}
word mem_inw (ADAPTER *a, void *addr)
{
 word val;
 volatile byte __iomem *Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 val = READ_WORD((Base + (unsigned long)addr));
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
 return (val);
}
void mem_in_dw (ADAPTER *a, void *addr, dword* data, int dwords)
{
 volatile byte __iomem * Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 while (dwords--) {
  *data++ = READ_DWORD((Base + (unsigned long)addr));
  addr+=4;
 }
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
void mem_in_buffer (ADAPTER *a, void *addr, void *buffer, word length)
{
 volatile byte __iomem *Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 memcpy_fromio(buffer, (Base + (unsigned long)addr), length);
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
void mem_look_ahead (ADAPTER *a, PBUFFER *RBuffer, ENTITY *e)
{
 PISDN_ADAPTER IoAdapter = (PISDN_ADAPTER)a->io ;
 IoAdapter->RBuffer.length = mem_inw (a, &RBuffer->length) ;
 mem_in_buffer (a, RBuffer->P, IoAdapter->RBuffer.P,
                IoAdapter->RBuffer.length) ;
 e->RBuffer = (DBUFFER *)&IoAdapter->RBuffer ;
}
void mem_out (ADAPTER *a, void *addr, byte data)
{
 volatile byte __iomem *Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 WRITE_BYTE(Base + (unsigned long)addr, data);
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
void mem_outw (ADAPTER *a, void *addr, word data)
{
 volatile byte __iomem * Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 WRITE_WORD((Base + (unsigned long)addr), data);
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
void mem_out_dw (ADAPTER *a, void *addr, const dword* data, int dwords)
{
 volatile byte __iomem * Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 while (dwords--) {
	WRITE_DWORD((Base + (unsigned long)addr), *data);
  	addr+=4;
	data++;
 }
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
void mem_out_buffer (ADAPTER *a, void *addr, void *buffer, word length)
{
 volatile byte __iomem * Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 memcpy_toio((Base + (unsigned long)addr), buffer, length) ;
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
void mem_inc (ADAPTER *a, void *addr)
{
 volatile byte __iomem *Base = DIVA_OS_MEM_ATTACH_RAM((PISDN_ADAPTER)a->io);
 byte  x = READ_BYTE(Base + (unsigned long)addr);
 WRITE_BYTE(Base + (unsigned long)addr, x + 1);
 DIVA_OS_MEM_DETACH_RAM((PISDN_ADAPTER)a->io, Base);
}
/*------------------------------------------------------------------*/
/* ram access functions for io-mapped cards                         */
/*------------------------------------------------------------------*/
byte io_in(ADAPTER * a, void * adr)
{
  byte val;
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  outppw(Port + 4, (word)(unsigned long)adr);
  val = inpp(Port);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
  return(val);
}
word io_inw(ADAPTER * a, void * adr)
{
  word val;
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  outppw(Port + 4, (word)(unsigned long)adr);
  val = inppw(Port);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
  return(val);
}
void io_in_buffer(ADAPTER * a, void * adr, void * buffer, word len)
{
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  byte* P = (byte*)buffer;
  if ((long)adr & 1) {
    outppw(Port+4, (word)(unsigned long)adr);
    *P = inpp(Port);
    P++;
    adr = ((byte *) adr) + 1;
    len--;
    if (!len) {
	DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
	return;
    }
  }
  outppw(Port+4, (word)(unsigned long)adr);
  inppw_buffer (Port, P, len+1);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
}
void io_look_ahead(ADAPTER * a, PBUFFER * RBuffer, ENTITY * e)
{
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  outppw(Port+4, (word)(unsigned long)RBuffer);
  ((PISDN_ADAPTER)a->io)->RBuffer.length = inppw(Port);
  inppw_buffer (Port, ((PISDN_ADAPTER)a->io)->RBuffer.P, ((PISDN_ADAPTER)a->io)->RBuffer.length + 1);
  e->RBuffer = (DBUFFER *) &(((PISDN_ADAPTER)a->io)->RBuffer);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
}
void io_out(ADAPTER * a, void * adr, byte data)
{
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  outppw(Port+4, (word)(unsigned long)adr);
  outpp(Port, data);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
}
void io_outw(ADAPTER * a, void * adr, word data)
{
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  outppw(Port+4, (word)(unsigned long)adr);
  outppw(Port, data);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
}
void io_out_buffer(ADAPTER * a, void * adr, void * buffer, word len)
{
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  byte* P = (byte*)buffer;
  if ((long)adr & 1) {
    outppw(Port+4, (word)(unsigned long)adr);
    outpp(Port, *P);
    P++;
    adr = ((byte *) adr) + 1;
    len--;
    if (!len) {
	DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
	return;
    }
  }
  outppw(Port+4, (word)(unsigned long)adr);
  outppw_buffer (Port, P, len+1);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
}
void io_inc(ADAPTER * a, void * adr)
{
  byte x;
  byte __iomem *Port = DIVA_OS_MEM_ATTACH_PORT((PISDN_ADAPTER)a->io);
  outppw(Port+4, (word)(unsigned long)adr);
  x = inpp(Port);
  outppw(Port+4, (word)(unsigned long)adr);
  outpp(Port, x+1);
  DIVA_OS_MEM_DETACH_PORT((PISDN_ADAPTER)a->io, Port);
}
/*------------------------------------------------------------------*/
/* OS specific functions related to queuing of entities             */
/*------------------------------------------------------------------*/
void free_entity(ADAPTER * a, byte e_no)
{
  PISDN_ADAPTER IoAdapter;
 diva_os_spin_lock_magic_t irql;
  IoAdapter = (PISDN_ADAPTER) a->io;
 diva_os_enter_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_free");
  IoAdapter->e_tbl[e_no].e = NULL;
  IoAdapter->e_count--;
 diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_free");
}
void assign_queue(ADAPTER * a, byte e_no, word ref)
{
  PISDN_ADAPTER IoAdapter;
 diva_os_spin_lock_magic_t irql;
  IoAdapter = (PISDN_ADAPTER) a->io;
 diva_os_enter_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_assign");
  IoAdapter->e_tbl[e_no].assign_ref = ref;
  IoAdapter->e_tbl[e_no].next = (byte)IoAdapter->assign;
  IoAdapter->assign = e_no;
 diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_assign");
}
byte get_assign(ADAPTER * a, word ref)
{
  PISDN_ADAPTER IoAdapter;
 diva_os_spin_lock_magic_t irql;
  byte e_no;
  IoAdapter = (PISDN_ADAPTER) a->io;
 diva_os_enter_spin_lock (&IoAdapter->data_spin_lock,
              &irql,
              "data_assign_get");
  for(e_no = (byte)IoAdapter->assign;
      e_no && IoAdapter->e_tbl[e_no].assign_ref!=ref;
      e_no = IoAdapter->e_tbl[e_no].next);
 diva_os_leave_spin_lock (&IoAdapter->data_spin_lock,
              &irql,
              "data_assign_get");
  return e_no;
}
void req_queue(ADAPTER * a, byte e_no)
{
  PISDN_ADAPTER IoAdapter;
 diva_os_spin_lock_magic_t irql;
  IoAdapter = (PISDN_ADAPTER) a->io;
 diva_os_enter_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req_q");
  IoAdapter->e_tbl[e_no].next = 0;
  if(IoAdapter->head) {
    IoAdapter->e_tbl[IoAdapter->tail].next = e_no;
    IoAdapter->tail = e_no;
  }
  else {
    IoAdapter->head = e_no;
    IoAdapter->tail = e_no;
  }
 diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req_q");
}
byte look_req(ADAPTER * a)
{
  PISDN_ADAPTER IoAdapter;
  IoAdapter = (PISDN_ADAPTER) a->io;
  return ((byte)IoAdapter->head) ;
}
void next_req(ADAPTER * a)
{
  PISDN_ADAPTER IoAdapter;
 diva_os_spin_lock_magic_t irql;
  IoAdapter = (PISDN_ADAPTER) a->io;
 diva_os_enter_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req_next");
  IoAdapter->head = IoAdapter->e_tbl[IoAdapter->head].next;
  if(!IoAdapter->head) IoAdapter->tail = 0;
 diva_os_leave_spin_lock (&IoAdapter->data_spin_lock, &irql, "data_req_next");
}
/*------------------------------------------------------------------*/
/* memory map functions                                             */
/*------------------------------------------------------------------*/
ENTITY * entity_ptr(ADAPTER * a, byte e_no)
{
  PISDN_ADAPTER IoAdapter;
  IoAdapter = (PISDN_ADAPTER) a->io;
  return (IoAdapter->e_tbl[e_no].e);
}
void * PTR_X(ADAPTER * a, ENTITY * e)
{
  return ((void *) e->X);
}
void * PTR_R(ADAPTER * a, ENTITY * e)
{
  return ((void *) e->R);
}
void * PTR_P(ADAPTER * a, ENTITY * e, void * P)
{
  return P;
}
void CALLBACK(ADAPTER * a, ENTITY * e)
{
 if ( e && e->callback )
  e->callback (e) ;
}
OpenPOWER on IntegriCloud