aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/siano/smsdvb.c
blob: 68bf9fbd8fed91094cd641c245ebaf2d467761ce (plain) (blame)
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
/****************************************************************

Siano Mobile Silicon, Inc.
MDTV receiver kernel modules.
Copyright (C) 2006-2008, Uri Shkolnik

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 of the License, 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/module.h>
#include <linux/init.h>

#include "dmxdev.h"
#include "dvbdev.h"
#include "dvb_demux.h"
#include "dvb_frontend.h"

#include "smscoreapi.h"
#include "smsendian.h"
#include "sms-cards.h"

DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);

struct smsdvb_client_t {
	struct list_head entry;

	struct smscore_device_t *coredev;
	struct smscore_client_t *smsclient;

	struct dvb_adapter      adapter;
	struct dvb_demux        demux;
	struct dmxdev           dmxdev;
	struct dvb_frontend     frontend;

	fe_status_t             fe_status;

	struct completion       tune_done;

	/* todo: save freq/band instead whole struct */
	struct dvb_frontend_parameters fe_params;

	struct SMSHOSTLIB_STATISTICS_DVB_S sms_stat_dvb;
	int event_fe_state;
	int event_unc_state;
};

static struct list_head g_smsdvb_clients;
static struct mutex g_smsdvb_clientslock;

static int sms_dbg;
module_param_named(debug, sms_dbg, int, 0644);
MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");

/* Events that may come from DVB v3 adapter */
static void sms_board_dvb3_event(struct smsdvb_client_t *client,
		enum SMS_DVB3_EVENTS event) {

	struct smscore_device_t *coredev = client->coredev;
	switch (event) {
	case DVB3_EVENT_INIT:
		sms_debug("DVB3_EVENT_INIT");
		sms_board_event(coredev, BOARD_EVENT_BIND);
		break;
	case DVB3_EVENT_SLEEP:
		sms_debug("DVB3_EVENT_SLEEP");
		sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
		break;
	case DVB3_EVENT_HOTPLUG:
		sms_debug("DVB3_EVENT_HOTPLUG");
		sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
		break;
	case DVB3_EVENT_FE_LOCK:
		if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
			client->event_fe_state = DVB3_EVENT_FE_LOCK;
			sms_debug("DVB3_EVENT_FE_LOCK");
			sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
		}
		break;
	case DVB3_EVENT_FE_UNLOCK:
		if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
			client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
			sms_debug("DVB3_EVENT_FE_UNLOCK");
			sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
		}
		break;
	case DVB3_EVENT_UNC_OK:
		if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
			client->event_unc_state = DVB3_EVENT_UNC_OK;
			sms_debug("DVB3_EVENT_UNC_OK");
			sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
		}
		break;
	case DVB3_EVENT_UNC_ERR:
		if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
			client->event_unc_state = DVB3_EVENT_UNC_ERR;
			sms_debug("DVB3_EVENT_UNC_ERR");
			sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
		}
		break;

	default:
		sms_err("Unknown dvb3 api event");
		break;
	}
}

static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
{
	struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
	struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) (((u8 *) cb->p)
			+ cb->offset);
	u32 *pMsgData = (u32 *) phdr + 1;
	/*u32 MsgDataLen = phdr->msgLength - sizeof(struct SmsMsgHdr_ST);*/
	bool is_status_update = false;

	smsendian_handle_rx_message((struct SmsMsgData_ST *) phdr);

	switch (phdr->msgType) {
	case MSG_SMS_DVBT_BDA_DATA:
		dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
				 cb->size - sizeof(struct SmsMsgHdr_ST));
		break;

	case MSG_SMS_RF_TUNE_RES:
		complete(&client->tune_done);
		break;

	case MSG_SMS_SIGNAL_DETECTED_IND:
		sms_info("MSG_SMS_SIGNAL_DETECTED_IND");
		client->sms_stat_dvb.TransmissionData.IsDemodLocked = true;
		is_status_update = true;
		break;

	case MSG_SMS_NO_SIGNAL_IND:
		sms_info("MSG_SMS_NO_SIGNAL_IND");
		client->sms_stat_dvb.TransmissionData.IsDemodLocked = false;
		is_status_update = true;
		break;

	case MSG_SMS_TRANSMISSION_IND: {
		sms_info("MSG_SMS_TRANSMISSION_IND");

		pMsgData++;
		memcpy(&client->sms_stat_dvb.TransmissionData, pMsgData,
				sizeof(struct TRANSMISSION_STATISTICS_S));

		/* Mo need to correct guard interval
		 * (as opposed to old statistics message).
		 */
		CORRECT_STAT_BANDWIDTH(client->sms_stat_dvb.TransmissionData);
		CORRECT_STAT_TRANSMISSON_MODE(
				client->sms_stat_dvb.TransmissionData);
		is_status_update = true;
		break;
	}
	case MSG_SMS_HO_PER_SLICES_IND: {
		struct RECEPTION_STATISTICS_S *pReceptionData =
				&client->sms_stat_dvb.ReceptionData;
		struct SRVM_SIGNAL_STATUS_S SignalStatusData;

		/*sms_info("MSG_SMS_HO_PER_SLICES_IND");*/
		pMsgData++;
		SignalStatusData.result = pMsgData[0];
		SignalStatusData.snr = pMsgData[1];
		SignalStatusData.inBandPower = (s32) pMsgData[2];
		SignalStatusData.tsPackets = pMsgData[3];
		SignalStatusData.etsPackets = pMsgData[4];
		SignalStatusData.constellation = pMsgData[5];
		SignalStatusData.hpCode = pMsgData[6];
		SignalStatusData.tpsSrvIndLP = pMsgData[7] & 0x03;
		SignalStatusData.tpsSrvIndHP = pMsgData[8] & 0x03;
		SignalStatusData.cellId = pMsgData[9] & 0xFFFF;
		SignalStatusData.reason = pMsgData[10];
		SignalStatusData.requestId = pMsgData[11];
		pReceptionData->IsRfLocked = pMsgData[16];
		pReceptionData->IsDemodLocked = pMsgData[17];
		pReceptionData->ModemState = pMsgData[12];
		pReceptionData->SNR = pMsgData[1];
		pReceptionData->BER = pMsgData[13];
		pReceptionData->RSSI = pMsgData[14];
		CORRECT_STAT_RSSI(client->sms_stat_dvb.ReceptionData);

		pReceptionData->InBandPwr = (s32) pMsgData[2];
		pReceptionData->CarrierOffset = (s32) pMsgData[15];
		pReceptionData->TotalTSPackets = pMsgData[3];
		pReceptionData->ErrorTSPackets = pMsgData[4];

		/* TS PER */
		if ((SignalStatusData.tsPackets + SignalStatusData.etsPackets)
				> 0) {
			pReceptionData->TS_PER = (SignalStatusData.etsPackets
					* 100) / (SignalStatusData.tsPackets
					+ SignalStatusData.etsPackets);
		} else {
			pReceptionData->TS_PER = 0;
		}

		pReceptionData->BERBitCount = pMsgData[18];
		pReceptionData->BERErrorCount = pMsgData[19];

		pReceptionData->MRC_SNR = pMsgData[20];
		pReceptionData->MRC_InBandPwr = pMsgData[21];
		pReceptionData->MRC_RSSI = pMsgData[22];

		is_status_update = true;
		break;
	}
	}
	smscore_putbuffer(client->coredev, cb);

	if (is_status_update) {
		if (client->sms_stat_dvb.ReceptionData.IsDemodLocked) {
			client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER
				| FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
			sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
			if (client->sms_stat_dvb.ReceptionData.ErrorTSPackets
					== 0)
				sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
			else
				sms_board_dvb3_event(client,
						DVB3_EVENT_UNC_ERR);

		} else {
			/*client->fe_status =
				(phdr->msgType == MSG_SMS_NO_SIGNAL_IND) ?
				0 : FE_HAS_SIGNAL;*/
			client->fe_status = 0;
			sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
		}
	}

	return 0;
}

static void smsdvb_unregister_client(struct smsdvb_client_t *client)
{
	/* must be called under clientslock */

	list_del(&client->entry);

	smscore_unregister_client(client->smsclient);
	dvb_unregister_frontend(&client->frontend);
	dvb_dmxdev_release(&client->dmxdev);
	dvb_dmx_release(&client->demux);
	dvb_unregister_adapter(&client->adapter);
	kfree(client);
}

static void smsdvb_onremove(void *context)
{
	kmutex_lock(&g_smsdvb_clientslock);

	smsdvb_unregister_client((struct smsdvb_client_t *) context);

	kmutex_unlock(&g_smsdvb_clientslock);
}

static int smsdvb_start_feed(struct dvb_demux_feed *feed)
{
	struct smsdvb_client_t *client =
		container_of(feed->demux, struct smsdvb_client_t, demux);
	struct SmsMsgData_ST PidMsg;

	sms_debug("add pid %d(%x)",
		  feed->pid, feed->pid);

	PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
	PidMsg.xMsgHeader.msgDstId = HIF_TASK;
	PidMsg.xMsgHeader.msgFlags = 0;
	PidMsg.xMsgHeader.msgType  = MSG_SMS_ADD_PID_FILTER_REQ;
	PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
	PidMsg.msgData[0] = feed->pid;

	smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
	return smsclient_sendrequest(client->smsclient,
				     &PidMsg, sizeof(PidMsg));
}

static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
{
	struct smsdvb_client_t *client =
		container_of(feed->demux, struct smsdvb_client_t, demux);
	struct SmsMsgData_ST PidMsg;

	sms_debug("remove pid %d(%x)",
		  feed->pid, feed->pid);

	PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
	PidMsg.xMsgHeader.msgDstId = HIF_TASK;
	PidMsg.xMsgHeader.msgFlags = 0;
	PidMsg.xMsgHeader.msgType  = MSG_SMS_REMOVE_PID_FILTER_REQ;
	PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
	PidMsg.msgData[0] = feed->pid;

	smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
	return smsclient_sendrequest(client->smsclient,
				     &PidMsg, sizeof(PidMsg));
}

static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
					void *buffer, size_t size,
					struct completion *completion)
{
	int rc;

	smsendian_handle_tx_message((struct SmsMsgHdr_ST *)buffer);
	rc = smsclient_sendrequest(client->smsclient, buffer, size);
	if (rc < 0)
		return rc;

	return wait_for_completion_timeout(completion,
					   msecs_to_jiffies(2000)) ?
						0 : -ETIME;
}

static inline int led_feedback(struct smsdvb_client_t *client)
{
	if (client->fe_status & FE_HAS_LOCK)
		return sms_board_led_feedback(client->coredev,
			(client->sms_stat_dvb.ReceptionData.BER
			== 0) ? SMS_LED_HI : SMS_LED_LO);
	else
		return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
}

static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
{
	struct smsdvb_client_t *client;
	client = container_of(fe, struct smsdvb_client_t, frontend);

	*stat = client->fe_status;

	led_feedback(client);

	return 0;
}

static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
{
	struct smsdvb_client_t *client;
	client = container_of(fe, struct smsdvb_client_t, frontend);

	*ber = client->sms_stat_dvb.ReceptionData.BER;

	led_feedback(client);

	return 0;
}

static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
{
	struct smsdvb_client_t *client;
	client = container_of(fe, struct smsdvb_client_t, frontend);

	if (client->sms_stat_dvb.ReceptionData.InBandPwr < -95)
		*strength = 0;
		else if (client->sms_stat_dvb.ReceptionData.InBandPwr > -29)
			*strength = 100;
		else
			*strength =
				(client->sms_stat_dvb.ReceptionData.InBandPwr
				+ 95) * 3 / 2;

	led_feedback(client);

	return 0;
}

static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
{
	struct smsdvb_client_t *client;
	client = container_of(fe, struct smsdvb_client_t, frontend);

	*snr = client->sms_stat_dvb.ReceptionData.SNR;

	led_feedback(client);

	return 0;
}

static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
{
	struct smsdvb_client_t *client;
	client = container_of(fe, struct smsdvb_client_t, frontend);

	*ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets;

	led_feedback(client);

	return 0;
}

static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
				    struct dvb_frontend_tune_settings *tune)
{
	sms_debug("");

	tune->min_delay_ms = 400;
	tune->step_size = 250000;
	tune->max_drift = 0;
	return 0;
}

static int smsdvb_set_frontend(struct dvb_frontend *fe,
			       struct dvb_frontend_parameters *fep)
{
	struct smsdvb_client_t *client =
		container_of(fe, struct smsdvb_client_t, frontend);

	struct {
		struct SmsMsgHdr_ST	Msg;
		u32		Data[3];
	} Msg;

	int ret;

	client->fe_status = FE_HAS_SIGNAL;
	client->event_fe_state = -1;
	client->event_unc_state = -1;

	Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
	Msg.Msg.msgDstId = HIF_TASK;
	Msg.Msg.msgFlags = 0;
	Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
	Msg.Msg.msgLength = sizeof(Msg);
	Msg.Data[0] = fep->frequency;
	Msg.Data[2] = 12000000;

	sms_debug("freq %d band %d",
		  fep->frequency, fep->u.ofdm.bandwidth);

	switch (fep->u.ofdm.bandwidth) {
	case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break;
	case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break;
	case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break;
	case BANDWIDTH_AUTO: return -EOPNOTSUPP;
	default: return -EINVAL;
	}
	/* Disable LNA, if any. An error is returned if no LNA is present */
	ret = sms_board_lna_control(client->coredev, 0);
	if (ret == 0) {
		fe_status_t status;

		/* tune with LNA off at first */
		ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
						  &client->tune_done);

		smsdvb_read_status(fe, &status);

		if (status & FE_HAS_LOCK)
			return ret;

		/* previous tune didnt lock - enable LNA and tune again */
		sms_board_lna_control(client->coredev, 1);
	}

	return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
					   &client->tune_done);
}

static int smsdvb_get_frontend(struct dvb_frontend *fe,
			       struct dvb_frontend_parameters *fep)
{
	struct smsdvb_client_t *client =
		container_of(fe, struct smsdvb_client_t, frontend);

	sms_debug("");

	/* todo: */
	memcpy(fep, &client->fe_params,
	       sizeof(struct dvb_frontend_parameters));

	return 0;
}

static int smsdvb_init(struct dvb_frontend *fe)
{
	struct smsdvb_client_t *client =
		container_of(fe, struct smsdvb_client_t, frontend);

	sms_board_power(client->coredev, 1);

	sms_board_dvb3_event(client, DVB3_EVENT_INIT);
	return 0;
}

static int smsdvb_sleep(struct dvb_frontend *fe)
{
	struct smsdvb_client_t *client =
		container_of(fe, struct smsdvb_client_t, frontend);

	sms_board_led_feedback(client->coredev, SMS_LED_OFF);
	sms_board_power(client->coredev, 0);

	sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);

	return 0;
}

static void smsdvb_release(struct dvb_frontend *fe)
{
	/* do nothing */
}

static struct dvb_frontend_ops smsdvb_fe_ops = {
	.info = {
		.name			= "Siano Mobile Digital MDTV Receiver",
		.type			= FE_OFDM,
		.frequency_min		= 44250000,
		.frequency_max		= 867250000,
		.frequency_stepsize	= 250000,
		.caps = FE_CAN_INVERSION_AUTO |
			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
			FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
			FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
			FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
			FE_CAN_GUARD_INTERVAL_AUTO |
			FE_CAN_RECOVER |
			FE_CAN_HIERARCHY_AUTO,
	},

	.release = smsdvb_release,

	.set_frontend = smsdvb_set_frontend,
	.get_frontend = smsdvb_get_frontend,
	.get_tune_settings = smsdvb_get_tune_settings,

	.read_status = smsdvb_read_status,
	.read_ber = smsdvb_read_ber,
	.read_signal_strength = smsdvb_read_signal_strength,
	.read_snr = smsdvb_read_snr,
	.read_ucblocks = smsdvb_read_ucblocks,

	.init = smsdvb_init,
	.sleep = smsdvb_sleep,
};

static int smsdvb_hotplug(struct smscore_device_t *coredev,
			  struct device *device, int arrival)
{
	struct smsclient_params_t params;
	struct smsdvb_client_t *client;
	int rc;

	/* device removal handled by onremove callback */
	if (!arrival)
		return 0;

	if (smscore_get_device_mode(coredev) != DEVICE_MODE_DVBT_BDA) {
		sms_err("SMS Device mode is not set for "
			"DVB operation.");
		return 0;
	}

	client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
	if (!client) {
		sms_err("kmalloc() failed");
		return -ENOMEM;
	}

	/* register dvb adapter */
	rc = dvb_register_adapter(&client->adapter,
				  sms_get_board(
					smscore_get_board_id(coredev))->name,
				  THIS_MODULE, device, adapter_nr);
	if (rc < 0) {
		sms_err("dvb_register_adapter() failed %d", rc);
		goto adapter_error;
	}

	/* init dvb demux */
	client->demux.dmx.capabilities = DMX_TS_FILTERING;
	client->demux.filternum = 32; /* todo: nova ??? */
	client->demux.feednum = 32;
	client->demux.start_feed = smsdvb_start_feed;
	client->demux.stop_feed = smsdvb_stop_feed;

	rc = dvb_dmx_init(&client->demux);
	if (rc < 0) {
		sms_err("dvb_dmx_init failed %d", rc);
		goto dvbdmx_error;
	}

	/* init dmxdev */
	client->dmxdev.filternum = 32;
	client->dmxdev.demux = &client->demux.dmx;
	client->dmxdev.capabilities = 0;

	rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
	if (rc < 0) {
		sms_err("dvb_dmxdev_init failed %d", rc);
		goto dmxdev_error;
	}

	/* init and register frontend */
	memcpy(&client->frontend.ops, &smsdvb_fe_ops,
	       sizeof(struct dvb_frontend_ops));

	rc = dvb_register_frontend(&client->adapter, &client->frontend);
	if (rc < 0) {
		sms_err("frontend registration failed %d", rc);
		goto frontend_error;
	}

	params.initial_id = 1;
	params.data_type = MSG_SMS_DVBT_BDA_DATA;
	params.onresponse_handler = smsdvb_onresponse;
	params.onremove_handler = smsdvb_onremove;
	params.context = client;

	rc = smscore_register_client(coredev, &params, &client->smsclient);
	if (rc < 0) {
		sms_err("smscore_register_client() failed %d", rc);
		goto client_error;
	}

	client->coredev = coredev;

	init_completion(&client->tune_done);

	kmutex_lock(&g_smsdvb_clientslock);

	list_add(&client->entry, &g_smsdvb_clients);

	kmutex_unlock(&g_smsdvb_clientslock);

	client->event_fe_state = -1;
	client->event_unc_state = -1;
	sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);

	sms_info("success");
	sms_board_setup(coredev);

	return 0;

client_error:
	dvb_unregister_frontend(&client->frontend);

frontend_error:
	dvb_dmxdev_release(&client->dmxdev);

dmxdev_error:
	dvb_dmx_release(&client->demux);

dvbdmx_error:
	dvb_unregister_adapter(&client->adapter);

adapter_error:
	kfree(client);
	return rc;
}

static int __init smsdvb_module_init(void)
{
	int rc;

	INIT_LIST_HEAD(&g_smsdvb_clients);
	kmutex_init(&g_smsdvb_clientslock);

	rc = smscore_register_hotplug(smsdvb_hotplug);

	sms_debug("");

	return rc;
}

static void __exit smsdvb_module_exit(void)
{
	smscore_unregister_hotplug(smsdvb_hotplug);

	kmutex_lock(&g_smsdvb_clientslock);

	while (!list_empty(&g_smsdvb_clients))
	       smsdvb_unregister_client(
			(struct smsdvb_client_t *) g_smsdvb_clients.next);

	kmutex_unlock(&g_smsdvb_clientslock);
}

module_init(smsdvb_module_init);
module_exit(smsdvb_module_exit);

MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
MODULE_LICENSE("GPL");