summaryrefslogtreecommitdiff
path: root/xivovp/base.c
blob: 54e497995e17db33fe623f1f7cbe95a334234b3c (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
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
/*
 * Copyright (C) 2010,2012  Avencall
 * Authors:
 * 	Noe Rubinstein <nrubinstein@proformatique.com>
 * 	Guillaume Knispel <gknispel@proformatique.com>
 *
 * 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; without even the 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, see <http://www.gnu.org/licenses/>.
 */
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/compiler.h>
#include <linux/stringify.h>

#include <dahdi/kernel.h>

#include <gpio/gpio.h>

#ifdef AUDIO
#include <tdm/xivo_tdm_api.h>

#define XIVO_VE890_TDM_PORT	1
#endif

#include "vp_api.h"
#include "EVB_Le71HR8921G_rev_E_2M048.h"

#define VP_TICK_MS		5	/* matches with device profile
					   configuration */

#include "tolapai_spi.h"

#define DRV_NAME		"xivovp"

#define TRACES_VANISH_DEFAULT	2000

#define NB_LINES		2
#define TICK_JIFFIES(n)		DIV_ROUND_UP(n * HZ, 1000)
#define VP_TICK_JIFFIES 	TICK_JIFFIES(VP_TICK_MS)

#define DEBUG_SELECT_RUNNING	(VP_DBG_ERROR | VP_DBG_WARNING | VP_DBG_INFO)

#define FXS_TIMESLOT		1
#define FXO_TIMESLOT		3

#ifdef AUDIO
#define TS_MASK			((1u << FXS_TIMESLOT) | (1u << FXO_TIMESLOT))
#endif

#define REVERSE_POLARITY(line)	(!(					\
			(!reverse_polarity) ^				\
			(!(line)->reverse_polarity &&			\
					(line)->vmwi_info.vmwi_type &	\
					DAHDI_VMWI_LREV) ^		\
			(!(line)->message_waiting)))

#define POL(line, sig) (REVERSE_POLARITY(line) ? sig ## _POLREV : sig)

static uint init_dbg = VP_DBG_ALL;
static int traces_vanish = TRACES_VANISH_DEFAULT;
static int alawoverride = 1;	/* It's named like that in every DAHDI driver
				   except I prefer it to be 1 so the name
				   doesn't make much sense. */
static int reverse_polarity = false;
static int wait_port0 = true;
static uint reset_gpio = 25;

module_param(init_dbg, uint, 0444);
module_param(reset_gpio, uint, 0444);
module_param(traces_vanish, int, 0444);
module_param(wait_port0, int, 0444);
module_param(alawoverride, int, 0600);
module_param(reverse_polarity, int, 0600);

MODULE_PARM_DESC(init_dbg,
	"initial VP_API debug mask (default: " __stringify(VP_DBG_ALL) ")");
MODULE_PARM_DESC(traces_vanish,
	"number of " __stringify(VP_TICK_MS) "ms ticks after device init "
	"complete event at which point VP-API II Lite traces will be reduced "
	"to only ERROR/WARNING/INFO (default: "
	__stringify(TRACES_VANISH_DEFAULT) ")");

enum xivovp_line_type { FXS_LINE = 0, FXO_LINE = 1 };

struct xivovp_line {
	enum xivovp_line_type type;

	bool ready;

	Vp890LineObjectType line_obj;
	VpLineCtxType vp_ctx;

	struct dahdi_chan chan;
	bool txsig_pending;
	enum dahdi_txsig txsig;

	spinlock_t lock;

	struct dahdi_vmwi_info vmwi_info;

	bool reverse_polarity;
	int message_waiting;
	bool previous_polarity;
};

static struct xivovp {
	struct dahdi_span span;
	struct dahdi_device *ddev;
	struct timer_list vp_tick_timer;

	struct xivovp_line line[NB_LINES];
	struct dahdi_chan *chans[NB_LINES];

	Vp890DeviceObjectType ve890_dev_obj;
	VpDevCtxType dev_ctx;

#ifdef AUDIO
	struct xivo_tdm_port *tdm_port;
#endif
} xivovp;

#ifdef AUDIO
static void xivovp_txrx(void *data)
{
	(void) data;

	dahdi_receive(&xivovp.span);
	dahdi_transmit(&xivovp.span);
	dahdi_ec_span(&xivovp.span);
}
#endif

void reset_ve890(void)
{
	gpio_set_direction(reset_gpio, GPIO_OUTPUT);
	gpio_set_to_gpio(reset_gpio);
	gpio_set_level(reset_gpio, GPIO_HIGH);
	msleep(1);
	gpio_set_level(reset_gpio, GPIO_LOW);
	msleep(1);
	gpio_set_level(reset_gpio, GPIO_HIGH);
}

/* Returns the xivovp_line which line is the same as the VpLineCtxType */
static struct xivovp_line* xivovp_line_from_ctx(VpLineCtxType* line_ctx)
{
	return container_of(line_ctx->pLineObj, struct xivovp_line, line_obj);
}

static void vp_set_debug_select_running(void)
{
	int i;
	uint32 debug_select;

	for (i = 0; i < NB_LINES; i++) {
		debug_select = DEBUG_SELECT_RUNNING;
		VpSetOption(&xivovp.line[i].vp_ctx, NULL,
						VP_OPTION_ID_DEBUG_SELECT,
						&debug_select);
	}

	debug_select = DEBUG_SELECT_RUNNING;
	VpSetOption(NULL, &xivovp.dev_ctx, VP_OPTION_ID_DEBUG_SELECT,
							&debug_select);

	debug_select = DEBUG_SELECT_RUNNING;
	VpSetOption(NULL, NULL, VP_OPTION_ID_DEBUG_SELECT, &debug_select);
}

static int xivovp_hooksig(struct dahdi_chan *chan, enum dahdi_txsig txsig)
{
	struct xivovp_line* line = chan->pvt;
	unsigned long flags;

	spin_lock_irqsave(&line->lock, flags);
	line->txsig = txsig;
	line->txsig_pending = true;
	spin_unlock_irqrestore(&line->lock, flags);
	return 0;
}

#define HOOKSIG_TRACE(line, txsig, vpsig)				\
	printk(KERN_DEBUG DRV_NAME "(chan %d): "			\
			"transmitting %s on %s, setting to %s%s.\n",	\
			chanpos, txsig,					\
			(line->type == FXO_LINE ? "FXO" : "FXS"), vpsig,\
			(REVERSE_POLARITY(line) &&			\
					line->type == FXS_LINE ?	\
					"_POLREV" : ""));

/*
 * hooksig transmits sig from DAHDI to VP.
 * sig from VP is handled in vp_tick and transmitted to DAHDI with
 * dahdi_hooksig
 */
static void xivovp_hooksig_pvt(struct xivovp_line* line, enum dahdi_txsig txsig)
{
	int chanpos = line->chan.chanpos;
	if (line->type == FXO_LINE) {
		switch (txsig) {
		case DAHDI_TXSIG_START:
		case DAHDI_TXSIG_OFFHOOK:
			HOOKSIG_TRACE(line, (txsig == DAHDI_TXSIG_START ?
						"START" : "OFFHOOK"), "TALK");
			VpSetLineState(&line->vp_ctx, VP_LINE_FXO_TALK);
			break;
		case DAHDI_TXSIG_ONHOOK:
			HOOKSIG_TRACE(line, "ONHOOK", "TALK");
			VpSetLineState(&line->vp_ctx, VP_LINE_FXO_OHT);
			break;
		default:
			printk(KERN_DEBUG DRV_NAME "(chan %d): "
					"unsupported tx state for FXO: %d\n",
					chanpos, txsig);
		}
	} else /* FXS */ {
		switch (txsig) {
		case DAHDI_TXSIG_START:
			HOOKSIG_TRACE(line, "START", "RINGING");
			VpSetLineState(&line->vp_ctx, 
					POL(line, VP_LINE_RINGING));
			break;
		case DAHDI_TXSIG_OFFHOOK:
			HOOKSIG_TRACE(line, "OFFHOOK", "TALK");
			VpSetLineState(&line->vp_ctx, POL(line, VP_LINE_TALK));
			break;
		case DAHDI_TXSIG_ONHOOK:
			HOOKSIG_TRACE(line, "ONHOOK", "OHT");
			VpSetLineState(&line->vp_ctx, POL(line, VP_LINE_OHT));
			break;
		case DAHDI_TXSIG_KEWL:
			printk(KERN_DEBUG DRV_NAME "(chan %d): "
					"transmitting remote disconnect (KEWL)"
					"on FXS\n", chanpos);
			VpSetLineState(&line->vp_ctx, VP_LINE_DISCONNECT);
			break;
		default:
			printk(KERN_DEBUG DRV_NAME "(chan %d): "
					"unsupported tx state for FXS: %d\n",
					chanpos, txsig);
		}
	}
}

static void xivovp_handle_txsig(void)
{
	static int said;
	int i;
	enum dahdi_txsig txsig;
	struct xivovp_line *line;
	unsigned long flags;
	bool pol_change;

	for (i = 0; i < NB_LINES; i++) {
		line = &xivovp.line[i];
		pol_change = line->type == FXS_LINE && 
			line->previous_polarity != REVERSE_POLARITY(line); 
		//XXX shouldn't do that while line is ringing?

		if (line->ready && (line->txsig_pending || pol_change)) {
			spin_lock_irqsave(&xivovp.line[i].lock, flags);

			txsig = xivovp.line[i].txsig;
			xivovp.line[i].txsig_pending = false;
			line->previous_polarity = REVERSE_POLARITY(line);

			spin_unlock_irqrestore(&xivovp.line[i].lock, flags);

			xivovp_hooksig_pvt(&xivovp.line[i], txsig);
		} else if (!said) {
			said = 1;
			printk(KERN_WARNING DRV_NAME ": "
					"txsig pending but calibration "
					"not done yet! Waiting...\n");
		}
	}
}

static bool count_and_stop_traces = FALSE;

static void vp_post_init(VpEventType *event)
{
	VpStatusType vpst;

	VpOptionTimeslotType fxs_timeslot = {
		.tx = FXS_TIMESLOT,
		.rx = FXS_TIMESLOT,
	};
	VpOptionTimeslotType fxo_timeslot = {
		.tx = FXO_TIMESLOT,
		.rx = FXO_TIMESLOT,
	};
	VpOptionEventMaskType event_mask = {
		.faults = 0,
		.signaling = 0,
		.response = 0,
		.test = 0,
		.process = 0,
		.fxo = 0,
	};

	printk(KERN_INFO DRV_NAME ": vp dev init complete\n");

	vpst = VpSetOption(NULL, event->pDevCtx, VP_OPTION_ID_EVENT_MASK, 
								&event_mask);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": "
				"VpSetOption VP_OPTION_ID_EVENT_MASK "
				"returned %d\n", (int)vpst);
	}

	/* FXS */
	vpst = VpSetOption(&xivovp.line[FXS_LINE].vp_ctx, NULL,
					VP_OPTION_ID_TIMESLOT, &fxs_timeslot);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": "
				"VpSetOption FXS VP_OPTION_ID_TIMESLOT "
				"returned %d\n", (int)vpst);
	}

	vpst = VpSetLineState(&xivovp.line[FXS_LINE].vp_ctx, VP_LINE_OHT);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": VpSetLineState returned %d\n",
								(int)vpst);
	}

	vpst = VpCalLine(&xivovp.line[FXS_LINE].vp_ctx);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": VpCalLine returned %d\n",
								(int)vpst);
	}

	/* FXO */
	vpst = VpSetOption(&xivovp.line[FXO_LINE].vp_ctx, NULL, 
					VP_OPTION_ID_TIMESLOT, &fxo_timeslot);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": "
				"VpSetOption FXO VP_OPTION_ID_TIMESLOT "
				"returned %d\n", (int)vpst);
	}

	vpst = VpSetLineState(&xivovp.line[FXO_LINE].vp_ctx, VP_LINE_FXO_OHT);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": "
				"VpSetLineState returned %d\n", (int)vpst);
	}

	xivovp.line[FXO_LINE].ready = true; /* No VpCalLine for FXO */

	count_and_stop_traces = TRUE;
}

static void event_calibration_complete(VpEventType *event)
{
	printk(KERN_INFO DRV_NAME ": calibration succeeded\n");
	xivovp_line_from_ctx(event->pLineCtx)->ready = true;
	vp_set_debug_select_running();
}

static void event_calibration_fail(VpEventType *event)
{
	(void) event;
	printk(KERN_WARNING DRV_NAME ": "
			"calibration failed (returned VP_EVID_CAL_BUSY)\n");
	vp_set_debug_select_running();
}

static void event_hook_off(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);
	printk(KERN_INFO DRV_NAME ": received hook off event on %s\n",
							line->chan.name);
	dahdi_hooksig(&line->chan, DAHDI_RXSIG_OFFHOOK);
}

static void event_hook_on(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);
	printk(KERN_INFO DRV_NAME ": received hook on event %s\n",
							line->chan.name);
	dahdi_hooksig(&line->chan, DAHDI_RXSIG_ONHOOK);
}

static void event_fxo_hook_off(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);

	printk(KERN_INFO DRV_NAME ": %s on %s\n",
			event->eventId == VP_LINE_EVID_LIU ?
				"line in use" :
			event->eventId == VP_LINE_EVID_FEED_DIS ?
				"voltage no longer detected across the loop" :
			event->eventId == VP_LINE_EVID_DISCONNECT ?
				"loop current from FXS no longer detected" :
				"???",
			line->chan.name);

	dahdi_hooksig(&line->chan, DAHDI_RXSIG_OFFHOOK);
}

static void event_fxo_hook_on(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);

	printk(KERN_INFO DRV_NAME ": %s on %s\n",
			event->eventId == VP_LINE_EVID_LNIU ?
				"line not in use" :
			event->eventId == VP_LINE_EVID_FEED_EN ?
				"FXS has applied voltage accross the loop" :
			event->eventId == VP_LINE_EVID_RECONNECT ?
				"FXS has started driving loop current" :
				"???",
			line->chan.name);

	dahdi_hooksig(&line->chan, DAHDI_RXSIG_ONHOOK);
}

static void event_ring_on(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);
	printk(KERN_INFO DRV_NAME ": received ring on event on %s\n",
							line->chan.name);
	dahdi_hooksig(&line->chan, DAHDI_RXSIG_RING);
}

static void event_ring_off(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);
	printk(KERN_INFO DRV_NAME ": received ring off event on %s\n",
							line->chan.name);
	dahdi_hooksig(&line->chan, DAHDI_RXSIG_ONHOOK);
}

static void event_polarity_reversal(VpEventType *event)
{
	struct xivovp_line *line = xivovp_line_from_ctx(event->pLineCtx);
	printk(KERN_INFO DRV_NAME ": received polarity reversal event on %s\n",
							line->chan.name);
	line->reverse_polarity = !line->reverse_polarity;
	dahdi_qevent_lock(&line->chan, DAHDI_EVENT_POLARITY);
}

#define UNSUPPORTED(ev)							\
	case ev:							\
		printk(KERN_WARNING DRV_NAME				\
			": reveived unsupported event "	#ev "\n");	\
		break;

static void vp_tick(const unsigned long data)
{
	static VpEventType event;
	static VpResultsType result;
	bool ev_pending;
	VpStatusType vpst;

	(void) data;

	vpst = VpApiTick(&xivovp.dev_ctx, &ev_pending);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": VpApiTick returned %d\n",
								(int)vpst);
		return;
	}

	while (ev_pending) {
		ev_pending = VpGetEvent(&xivovp.dev_ctx, &event);
		if (event.status != VP_STATUS_SUCCESS) {
			printk(KERN_ERR DRV_NAME ": VpGetEvent returned "
							"event.status == %d\n",
							(int)event.status);
			return;
		}

		if (ev_pending) {
			printk(KERN_DEBUG "vp evt: %d %d\n",
					(int)event.eventCategory,
					(int)event.eventId);

			switch ((int)event.eventCategory) {
			case VP_EVCAT_RESPONSE:
				switch (event.eventId) {
				case VP_DEV_EVID_DEV_INIT_CMP:
					vp_post_init(&event);
					break;
				case VP_EVID_CAL_CMP:
					event_calibration_complete(&event);
					break;

				case VP_EVID_CAL_BUSY:
					event_calibration_fail(&event);
					break;

				UNSUPPORTED(VP_LINE_EVID_RD_OPTION);
				UNSUPPORTED(VP_LINE_EVID_GAIN_CMP);
				UNSUPPORTED(VP_LINE_EVID_LINE_INIT_CMP);
				UNSUPPORTED(VP_DEV_EVID_IO_ACCESS_CMP);
				}
				break;
			case VP_EVCAT_FAULT:
				switch(event.eventId) {
				UNSUPPORTED(VP_DEV_EVID_BAT_FLT);
				UNSUPPORTED(VP_DEV_EVID_CLK_FLT);
				UNSUPPORTED(VP_LINE_EVID_THERM_FLT);
				UNSUPPORTED(VP_LINE_EVID_DC_FLT);
				UNSUPPORTED(VP_LINE_EVID_RES_LEAK_FLT);
				}
				break;
			case VP_EVCAT_SIGNALING:
				switch (event.eventId) {
				case VP_LINE_EVID_HOOK_OFF:
					event_hook_off(&event);
					break;
				case VP_LINE_EVID_HOOK_ON:
					event_hook_on(&event);
					break;
				UNSUPPORTED(VP_LINE_EVID_GKEY_DET);
				UNSUPPORTED(VP_LINE_EVID_GKEY_REL);
				UNSUPPORTED(VP_LINE_EVID_FLASH);
				UNSUPPORTED(VP_LINE_EVID_STARTPULSE);
				UNSUPPORTED(VP_LINE_EVID_DTMF_DIG);
				UNSUPPORTED(VP_LINE_EVID_PULSE_DIG);
				}
				break;
			case VP_EVCAT_TEST:
				break;
			case VP_EVCAT_PROCESS:
				break;
			case VP_EVCAT_FXO:
				switch (event.eventId) {
				case VP_LINE_EVID_RING_ON:
					event_ring_on(&event);
					break;
				case VP_LINE_EVID_RING_OFF:
					event_ring_off(&event);
					break;
				case VP_LINE_EVID_POLREV:
					event_polarity_reversal(&event);
					break;
				case VP_LINE_EVID_LIU:
				case VP_LINE_EVID_FEED_DIS:
				case VP_LINE_EVID_DISCONNECT:
					event_fxo_hook_off(&event);
					break;
				case VP_LINE_EVID_LNIU:
				case VP_LINE_EVID_FEED_EN:
				case VP_LINE_EVID_RECONNECT:
					event_fxo_hook_on(&event);
					break;
				UNSUPPORTED(VP_LINE_EVID_POH);
				UNSUPPORTED(VP_LINE_EVID_PNOH);
				}
				break;
			}

			if (event.hasResults) {
				printk(KERN_INFO "VpGetResults\n");
				vpst = VpGetResults(&event, &result);
				if (vpst != VP_STATUS_SUCCESS) {
					printk(KERN_ERR DRV_NAME ": "
							"VpGetResults returned "
							"%d\n", (int) vpst);
					return; // TOTHINK
				}
			}
		}
	}

	xivovp_handle_txsig();

	if (count_and_stop_traces) {
		if (traces_vanish >= 0 && --traces_vanish < 0)
			vp_set_debug_select_running();
	}

	mod_timer(&xivovp.vp_tick_timer, jiffies + VP_TICK_JIFFIES);
}

static int xivovp_ioctl(struct dahdi_chan *chan, unsigned int cmd,
		unsigned long data)
{
	struct xivovp_line* line = chan->pvt;
	int x;

	switch (cmd) {
	case DAHDI_VMWI_CONFIG:
		if (line->type != FXS_LINE)
			return -EINVAL;
		if (copy_from_user(&line->vmwi_info, (__user void *) data,
						 sizeof(line->vmwi_info)))
			return -EFAULT;
		if (!(line->vmwi_info.vmwi_type & DAHDI_VMWI_LREV))
			printk(KERN_WARNING DRV_NAME "(chan %d): "
					"Only lrev VMWI is supported\n",
					chan->chanpos);
		break;

	case DAHDI_VMWI:
		if (line->type != FXS_LINE)
			return -EINVAL;
		if (get_user(x, (__user int *) data))
			return -EFAULT;
		line->message_waiting = x;
		break;

	case DAHDI_SETPOLARITY:
		if (line->type != FXS_LINE)
			return -EINVAL;
		if (get_user(x, (__user int *) data))
			return -EFAULT;
		line->reverse_polarity = !!x;
		break;

	default:
		return -ENOTTY;
	}
	return 0;
}


static const struct dahdi_span_ops xivovp_span_ops = {
        .owner = THIS_MODULE,
        .hooksig = xivovp_hooksig,
	.ioctl = xivovp_ioctl,
};

static int span_init(void)
{
	int i;
	struct xivovp_line* l;
	dahdi_copy_string(xivovp.span.name, "XivoVP", sizeof(xivovp.span.name));
	dahdi_copy_string(xivovp.span.desc,
			"FXO/FXS driver for Avencall's XiVO IPBX OpenHardware "
			"platform", sizeof(xivovp.span.desc));

	xivovp.ddev = dahdi_create_device();
	// BUGBUG
	xivovp.ddev->manufacturer = "Avencall";
	xivovp.ddev->devicetype = kasprintf(GFP_KERNEL, "Ve890");

	xivovp.span.ops = &xivovp_span_ops;
	xivovp.span.channels = NB_LINES;
	xivovp.span.chans = xivovp.chans;
	xivovp.span.deflaw = alawoverride ? DAHDI_LAW_ALAW : DAHDI_LAW_MULAW;
	xivovp.span.flags = DAHDI_FLAG_RBS;

	for (i = 0; i < NB_LINES; i++) {
		l = &xivovp.line[i];
		xivovp.chans[i] = &l->chan;
		l->chan.pvt = l;
		l->chan.chanpos = i + 1;

		if (l->type == FXO_LINE) {
			/* /!\ FXO uses FXS sig and vice-versa */
			sprintf(l->chan.name, "XIVO/FXO");
			l->chan.sigcap = DAHDI_SIG_FXSLS | DAHDI_SIG_FXSGS |
							DAHDI_SIG_FXSKS;
		} else if (l->type == FXS_LINE) {

			sprintf(l->chan.name, "XIVO/FXS");
			l->chan.sigcap = DAHDI_SIG_FXOLS | DAHDI_SIG_FXOGS |
							DAHDI_SIG_FXOKS;
		} else {
			printk(KERN_ERR DRV_NAME ": "
					"WTF?? Unsupported line type %d\n",
					l->type);
			return -EINVAL;
		}

		spin_lock_init(&l->lock);
	}

	list_add_tail(&xivovp.span.device_node, &xivovp.ddev->spans);
	if (dahdi_register_device(xivovp.ddev, &the_spi_pci_dev->dev)) {
		printk(KERN_WARNING DRV_NAME ": couldn't register span.\n");
		return -EINVAL;
	}

	return 0;
}

static int
xivovp_init(void)
{
	init_timer(&xivovp.vp_tick_timer);
	xivovp.vp_tick_timer.function = vp_tick;
	xivovp.vp_tick_timer.data = 42;

	xivovp.line[FXS_LINE].type = FXS_LINE;
	xivovp.line[FXO_LINE].type = FXO_LINE;

#ifdef AUDIO
	xivovp.tdm_port = xivo_tdm_get_port(XIVO_VE890_TDM_PORT);
	if (!xivovp.tdm_port) {
		printk(KERN_ERR "%s: could not get Ve890 TDM port\n", __func__);
		return -EIO;
	}
#endif

	return 0;
}

static void
xivovp_cleanup(void)
{
#ifdef AUDIO
	if (xivovp.tdm_port) {
		xivo_tdm_put_port(xivovp.tdm_port);
		xivovp.tdm_port = NULL;
	}
#endif
}

static int
vp_init(void)
{
	int rc;
	VpStatusType vpst;
	uint32 debug_select;

	debug_select = init_dbg;
	VpSetOption(NULL, NULL, VP_OPTION_ID_DEBUG_SELECT, &debug_select);
	debug_select = init_dbg;
	VpSetOption(NULL, NULL, VP_OPTION_ID_GLOBAL_DEBUG_SELECT,
								&debug_select);

	vpst = VpMakeDeviceObject(
			VP_DEV_890_SERIES,
			/* deviceId */ 0,
			&xivovp.dev_ctx,
			(void*)&xivovp.ve890_dev_obj);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": VpMakeDeviceObject failed (%d)\n",
				vpst);
		rc = -EIO;
		goto err_vp_make_device_object;
	}

	vpst = VpMakeLineObject(
			VP_TERM_FXS_GENERIC,
			FXS_LINE,
			&xivovp.line[FXS_LINE].vp_ctx,
			(void*)&xivovp.line[FXS_LINE].line_obj,
			&xivovp.dev_ctx);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": "
				"VpMakeLineObject (FXS) failed (%d)\n", vpst);
		rc = -EIO;
		goto err_vp_make_line_object;
	}

	vpst = VpMakeLineObject(
			VP_TERM_FXO_GENERIC,
			FXO_LINE,
			&xivovp.line[FXO_LINE].vp_ctx,
			(void*)&xivovp.line[FXO_LINE].line_obj,
			&xivovp.dev_ctx);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": "
				"VpMakeLineObject (FXO) failed (%d)\n", vpst);
		rc = -EIO;
		goto err_vp_make_line_object;
	} else {
		printk(KERN_INFO DRV_NAME ": VpMakeLineObject (FXO) done.\n");
	}

	vpst = VpInitDevice(
			&xivovp.dev_ctx,
			DEV_PROFILE_Buck_Boost,
			AC_FXS_RF50_FR,
			DC_FXS_DEF,
			RING_FR,
			AC_FXO_LC_FR,
			FXO_DIALING_FR);
	if (vpst != VP_STATUS_SUCCESS) {
		printk(KERN_ERR DRV_NAME ": VpInitDevice failed (%d)\n", vpst);
		rc = -EIO;
		goto err_vp_init_device;
	}

	return 0;

	/* nothing */
  err_vp_init_device:
	/* nothing */
  err_vp_make_line_object:
	/* nothing */
  err_vp_make_device_object:
	return rc;
}

#ifdef AUDIO
/* process context */
static void
xivovp_port0_configured_cb(void *data);

/* process context */
static void
xivovp_port0_started_cb(void *data);
#endif

static int
test_evb_ve890_init(void)
{
	int rc;
	printk(KERN_INFO DRV_NAME ": entering %s\n", __func__);

	reset_ve890();

	rc = tlp_spidev_init();
	if (rc < 0) {
		printk(KERN_ERR DRV_NAME ": tlp_spidev_init failed (%d)\n", rc);
		goto err_spidev_init;
	}

	rc = xivovp_init();
	if (rc < 0)
		goto err_xivovp_init;

	rc = span_init();
	if (rc < 0) {
		printk(KERN_ERR DRV_NAME ": ve890_dahdi_init failed\n");
		goto err_dahdi_init;
	}

#ifdef AUDIO
	if(wait_port0)
		/* UGLY EVIL HACK -1 */
		xivo_tdm_register_port0_configured(
				xivovp.tdm_port,
				xivovp_port0_configured_cb,
				NULL);
	else {
		xivovp_port0_configured_cb(NULL);
		xivovp_port0_started_cb(NULL);
	}

	return 0;
#else
	rc = vp_init();
	if (rc < 0)
		goto err_vp_init;

	mod_timer(&xivovp.vp_tick_timer, jiffies + VP_TICK_JIFFIES);

	return 0;

  err_vp_init:
	dahdi_unregister_device(xivovp.ddev);
#endif
  err_dahdi_init:
	xivovp_cleanup();
  err_xivovp_init:
	tlp_spidev_exit();
  err_spidev_init:
	return rc;
}

#ifdef AUDIO
static void
xivovp_port0_configured_cb(void *data)
{
	int rc;

	printk(KERN_ERR "%s START\n", __func__);

	if ((rc = xivo_tdm_config_port(xivovp.tdm_port,
				       LE89316_MEGREZ_PROTO_XIVO_CONFIG,
	                               NULL))
				< 0) {
		printk(KERN_CRIT "%s: xivo_tdm_config_port returned %d\n",
				__func__, rc);
		msleep(999);
		goto err_config_port;
	}

	rc = vp_init();
	if (rc < 0)
		goto err_vp_init;

	/* UGLY EVIL HACK */
	xivo_tdm_register_port0_started(
			xivovp.tdm_port,
			xivovp_port0_started_cb,
			NULL);

	mod_timer(&xivovp.vp_tick_timer, jiffies + VP_TICK_JIFFIES);

	printk(KERN_ERR "%s END\n", __func__);
	return;

  err_vp_init:
	dahdi_unregister_device(xivovp.ddev);
  err_config_port:
	xivovp_cleanup();
	tlp_spidev_exit();
}
#endif

#ifdef AUDIO
/* process context */
static void
xivovp_port0_started_cb(void *data)
{
	u8 **readchunk_ptrs[XIVO_TDM_TS_NUM] = { 0 };
	u8 **writechunk_ptrs[XIVO_TDM_TS_NUM] = { 0 };

	printk(KERN_ERR "%s START\n", __func__);

	readchunk_ptrs[FXS_TIMESLOT] = &xivovp.chans[FXS_LINE]->readchunk;
	writechunk_ptrs[FXS_TIMESLOT] = &xivovp.chans[FXS_LINE]->writechunk;

	readchunk_ptrs[FXO_TIMESLOT] = &xivovp.chans[FXO_LINE]->readchunk;
	writechunk_ptrs[FXO_TIMESLOT] = &xivovp.chans[FXO_LINE]->writechunk;

	/* XXX */ (void) xivo_tdm_start_chans(
				xivovp.tdm_port,
				readchunk_ptrs,
				writechunk_ptrs,
				xivovp_txrx,
				NULL);

	printk(KERN_ERR "%s END\n", __func__);
}
#endif

static void
test_evb_ve890_exit(void)
{
	printk(KERN_INFO DRV_NAME ": %s\n", __func__);

	dahdi_unregister_device(xivovp.ddev);

	del_timer_sync(&xivovp.vp_tick_timer);
	/* XXX : TODO update upstream Linux doc of del_timer_sync */

	xivovp_cleanup();
	tlp_spidev_exit();
}

module_init(test_evb_ve890_init);
module_exit(test_evb_ve890_exit);

MODULE_DESCRIPTION("Test driver for EVB Ve890");
MODULE_AUTHOR("Guillaume Knispel");
MODULE_LICENSE("GPL");
MODULE_VERSION("48");