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22#include <linux/module.h>
23#include <linux/init.h>
24
25#include "dmxdev.h"
26#include "dvbdev.h"
27#include "dvb_demux.h"
28#include "dvb_frontend.h"
29
30#include "smscoreapi.h"
31#include "smsendian.h"
32#include "sms-cards.h"
33
34DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
35
36struct smsdvb_client_t {
37 struct list_head entry;
38
39 struct smscore_device_t *coredev;
40 struct smscore_client_t *smsclient;
41
42 struct dvb_adapter adapter;
43 struct dvb_demux demux;
44 struct dmxdev dmxdev;
45 struct dvb_frontend frontend;
46
47 fe_status_t fe_status;
48
49 struct completion tune_done;
50
51
52 struct dvb_frontend_parameters fe_params;
53
54 struct SMSHOSTLIB_STATISTICS_DVB_S sms_stat_dvb;
55 int event_fe_state;
56 int event_unc_state;
57};
58
59static struct list_head g_smsdvb_clients;
60static struct mutex g_smsdvb_clientslock;
61
62static int sms_dbg;
63module_param_named(debug, sms_dbg, int, 0644);
64MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
65
66
67static void sms_board_dvb3_event(struct smsdvb_client_t *client,
68 enum SMS_DVB3_EVENTS event) {
69
70 struct smscore_device_t *coredev = client->coredev;
71 switch (event) {
72 case DVB3_EVENT_INIT:
73 sms_debug("DVB3_EVENT_INIT");
74 sms_board_event(coredev, BOARD_EVENT_BIND);
75 break;
76 case DVB3_EVENT_SLEEP:
77 sms_debug("DVB3_EVENT_SLEEP");
78 sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
79 break;
80 case DVB3_EVENT_HOTPLUG:
81 sms_debug("DVB3_EVENT_HOTPLUG");
82 sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
83 break;
84 case DVB3_EVENT_FE_LOCK:
85 if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
86 client->event_fe_state = DVB3_EVENT_FE_LOCK;
87 sms_debug("DVB3_EVENT_FE_LOCK");
88 sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
89 }
90 break;
91 case DVB3_EVENT_FE_UNLOCK:
92 if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
93 client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
94 sms_debug("DVB3_EVENT_FE_UNLOCK");
95 sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
96 }
97 break;
98 case DVB3_EVENT_UNC_OK:
99 if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
100 client->event_unc_state = DVB3_EVENT_UNC_OK;
101 sms_debug("DVB3_EVENT_UNC_OK");
102 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
103 }
104 break;
105 case DVB3_EVENT_UNC_ERR:
106 if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
107 client->event_unc_state = DVB3_EVENT_UNC_ERR;
108 sms_debug("DVB3_EVENT_UNC_ERR");
109 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
110 }
111 break;
112
113 default:
114 sms_err("Unknown dvb3 api event");
115 break;
116 }
117}
118
119static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
120{
121 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
122 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) (((u8 *) cb->p)
123 + cb->offset);
124 u32 *pMsgData = (u32 *) phdr + 1;
125
126 bool is_status_update = false;
127
128 smsendian_handle_rx_message((struct SmsMsgData_ST *) phdr);
129
130 switch (phdr->msgType) {
131 case MSG_SMS_DVBT_BDA_DATA:
132 dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
133 cb->size - sizeof(struct SmsMsgHdr_ST));
134 break;
135
136 case MSG_SMS_RF_TUNE_RES:
137 complete(&client->tune_done);
138 break;
139
140 case MSG_SMS_SIGNAL_DETECTED_IND:
141 sms_info("MSG_SMS_SIGNAL_DETECTED_IND");
142 client->sms_stat_dvb.TransmissionData.IsDemodLocked = true;
143 is_status_update = true;
144 break;
145
146 case MSG_SMS_NO_SIGNAL_IND:
147 sms_info("MSG_SMS_NO_SIGNAL_IND");
148 client->sms_stat_dvb.TransmissionData.IsDemodLocked = false;
149 is_status_update = true;
150 break;
151
152 case MSG_SMS_TRANSMISSION_IND: {
153 sms_info("MSG_SMS_TRANSMISSION_IND");
154
155 pMsgData++;
156 memcpy(&client->sms_stat_dvb.TransmissionData, pMsgData,
157 sizeof(struct TRANSMISSION_STATISTICS_S));
158
159
160
161
162 CORRECT_STAT_BANDWIDTH(client->sms_stat_dvb.TransmissionData);
163 CORRECT_STAT_TRANSMISSON_MODE(
164 client->sms_stat_dvb.TransmissionData);
165 is_status_update = true;
166 break;
167 }
168 case MSG_SMS_HO_PER_SLICES_IND: {
169 struct RECEPTION_STATISTICS_S *pReceptionData =
170 &client->sms_stat_dvb.ReceptionData;
171 struct SRVM_SIGNAL_STATUS_S SignalStatusData;
172
173
174 pMsgData++;
175 SignalStatusData.result = pMsgData[0];
176 SignalStatusData.snr = pMsgData[1];
177 SignalStatusData.inBandPower = (s32) pMsgData[2];
178 SignalStatusData.tsPackets = pMsgData[3];
179 SignalStatusData.etsPackets = pMsgData[4];
180 SignalStatusData.constellation = pMsgData[5];
181 SignalStatusData.hpCode = pMsgData[6];
182 SignalStatusData.tpsSrvIndLP = pMsgData[7] & 0x03;
183 SignalStatusData.tpsSrvIndHP = pMsgData[8] & 0x03;
184 SignalStatusData.cellId = pMsgData[9] & 0xFFFF;
185 SignalStatusData.reason = pMsgData[10];
186 SignalStatusData.requestId = pMsgData[11];
187 pReceptionData->IsRfLocked = pMsgData[16];
188 pReceptionData->IsDemodLocked = pMsgData[17];
189 pReceptionData->ModemState = pMsgData[12];
190 pReceptionData->SNR = pMsgData[1];
191 pReceptionData->BER = pMsgData[13];
192 pReceptionData->RSSI = pMsgData[14];
193 CORRECT_STAT_RSSI(client->sms_stat_dvb.ReceptionData);
194
195 pReceptionData->InBandPwr = (s32) pMsgData[2];
196 pReceptionData->CarrierOffset = (s32) pMsgData[15];
197 pReceptionData->TotalTSPackets = pMsgData[3];
198 pReceptionData->ErrorTSPackets = pMsgData[4];
199
200
201 if ((SignalStatusData.tsPackets + SignalStatusData.etsPackets)
202 > 0) {
203 pReceptionData->TS_PER = (SignalStatusData.etsPackets
204 * 100) / (SignalStatusData.tsPackets
205 + SignalStatusData.etsPackets);
206 } else {
207 pReceptionData->TS_PER = 0;
208 }
209
210 pReceptionData->BERBitCount = pMsgData[18];
211 pReceptionData->BERErrorCount = pMsgData[19];
212
213 pReceptionData->MRC_SNR = pMsgData[20];
214 pReceptionData->MRC_InBandPwr = pMsgData[21];
215 pReceptionData->MRC_RSSI = pMsgData[22];
216
217 is_status_update = true;
218 break;
219 }
220 }
221 smscore_putbuffer(client->coredev, cb);
222
223 if (is_status_update) {
224 if (client->sms_stat_dvb.ReceptionData.IsDemodLocked) {
225 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER
226 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
227 sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
228 if (client->sms_stat_dvb.ReceptionData.ErrorTSPackets
229 == 0)
230 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
231 else
232 sms_board_dvb3_event(client,
233 DVB3_EVENT_UNC_ERR);
234
235 } else {
236
237
238
239 client->fe_status = 0;
240 sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
241 }
242 }
243
244 return 0;
245}
246
247static void smsdvb_unregister_client(struct smsdvb_client_t *client)
248{
249
250
251 list_del(&client->entry);
252
253 smscore_unregister_client(client->smsclient);
254 dvb_unregister_frontend(&client->frontend);
255 dvb_dmxdev_release(&client->dmxdev);
256 dvb_dmx_release(&client->demux);
257 dvb_unregister_adapter(&client->adapter);
258 kfree(client);
259}
260
261static void smsdvb_onremove(void *context)
262{
263 kmutex_lock(&g_smsdvb_clientslock);
264
265 smsdvb_unregister_client((struct smsdvb_client_t *) context);
266
267 kmutex_unlock(&g_smsdvb_clientslock);
268}
269
270static int smsdvb_start_feed(struct dvb_demux_feed *feed)
271{
272 struct smsdvb_client_t *client =
273 container_of(feed->demux, struct smsdvb_client_t, demux);
274 struct SmsMsgData_ST PidMsg;
275
276 sms_debug("add pid %d(%x)",
277 feed->pid, feed->pid);
278
279 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
280 PidMsg.xMsgHeader.msgDstId = HIF_TASK;
281 PidMsg.xMsgHeader.msgFlags = 0;
282 PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ;
283 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
284 PidMsg.msgData[0] = feed->pid;
285
286 smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
287 return smsclient_sendrequest(client->smsclient,
288 &PidMsg, sizeof(PidMsg));
289}
290
291static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
292{
293 struct smsdvb_client_t *client =
294 container_of(feed->demux, struct smsdvb_client_t, demux);
295 struct SmsMsgData_ST PidMsg;
296
297 sms_debug("remove pid %d(%x)",
298 feed->pid, feed->pid);
299
300 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
301 PidMsg.xMsgHeader.msgDstId = HIF_TASK;
302 PidMsg.xMsgHeader.msgFlags = 0;
303 PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ;
304 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
305 PidMsg.msgData[0] = feed->pid;
306
307 smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
308 return smsclient_sendrequest(client->smsclient,
309 &PidMsg, sizeof(PidMsg));
310}
311
312static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
313 void *buffer, size_t size,
314 struct completion *completion)
315{
316 int rc;
317
318 smsendian_handle_tx_message((struct SmsMsgHdr_ST *)buffer);
319 rc = smsclient_sendrequest(client->smsclient, buffer, size);
320 if (rc < 0)
321 return rc;
322
323 return wait_for_completion_timeout(completion,
324 msecs_to_jiffies(2000)) ?
325 0 : -ETIME;
326}
327
328static inline int led_feedback(struct smsdvb_client_t *client)
329{
330 if (client->fe_status & FE_HAS_LOCK)
331 return sms_board_led_feedback(client->coredev,
332 (client->sms_stat_dvb.ReceptionData.BER
333 == 0) ? SMS_LED_HI : SMS_LED_LO);
334 else
335 return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
336}
337
338static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
339{
340 struct smsdvb_client_t *client;
341 client = container_of(fe, struct smsdvb_client_t, frontend);
342
343 *stat = client->fe_status;
344
345 led_feedback(client);
346
347 return 0;
348}
349
350static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
351{
352 struct smsdvb_client_t *client;
353 client = container_of(fe, struct smsdvb_client_t, frontend);
354
355 *ber = client->sms_stat_dvb.ReceptionData.BER;
356
357 led_feedback(client);
358
359 return 0;
360}
361
362static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
363{
364 struct smsdvb_client_t *client;
365 client = container_of(fe, struct smsdvb_client_t, frontend);
366
367 if (client->sms_stat_dvb.ReceptionData.InBandPwr < -95)
368 *strength = 0;
369 else if (client->sms_stat_dvb.ReceptionData.InBandPwr > -29)
370 *strength = 100;
371 else
372 *strength =
373 (client->sms_stat_dvb.ReceptionData.InBandPwr
374 + 95) * 3 / 2;
375
376 led_feedback(client);
377
378 return 0;
379}
380
381static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
382{
383 struct smsdvb_client_t *client;
384 client = container_of(fe, struct smsdvb_client_t, frontend);
385
386 *snr = client->sms_stat_dvb.ReceptionData.SNR;
387
388 led_feedback(client);
389
390 return 0;
391}
392
393static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
394{
395 struct smsdvb_client_t *client;
396 client = container_of(fe, struct smsdvb_client_t, frontend);
397
398 *ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets;
399
400 led_feedback(client);
401
402 return 0;
403}
404
405static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
406 struct dvb_frontend_tune_settings *tune)
407{
408 sms_debug("");
409
410 tune->min_delay_ms = 400;
411 tune->step_size = 250000;
412 tune->max_drift = 0;
413 return 0;
414}
415
416static int smsdvb_set_frontend(struct dvb_frontend *fe,
417 struct dvb_frontend_parameters *fep)
418{
419 struct smsdvb_client_t *client =
420 container_of(fe, struct smsdvb_client_t, frontend);
421
422 struct {
423 struct SmsMsgHdr_ST Msg;
424 u32 Data[3];
425 } Msg;
426
427 int ret;
428
429 client->fe_status = FE_HAS_SIGNAL;
430 client->event_fe_state = -1;
431 client->event_unc_state = -1;
432
433 Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
434 Msg.Msg.msgDstId = HIF_TASK;
435 Msg.Msg.msgFlags = 0;
436 Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
437 Msg.Msg.msgLength = sizeof(Msg);
438 Msg.Data[0] = fep->frequency;
439 Msg.Data[2] = 12000000;
440
441 sms_debug("freq %d band %d",
442 fep->frequency, fep->u.ofdm.bandwidth);
443
444 switch (fep->u.ofdm.bandwidth) {
445 case BANDWIDTH_8_MHZ: Msg.Data[1] = BW_8_MHZ; break;
446 case BANDWIDTH_7_MHZ: Msg.Data[1] = BW_7_MHZ; break;
447 case BANDWIDTH_6_MHZ: Msg.Data[1] = BW_6_MHZ; break;
448 case BANDWIDTH_AUTO: return -EOPNOTSUPP;
449 default: return -EINVAL;
450 }
451
452 ret = sms_board_lna_control(client->coredev, 0);
453 if (ret == 0) {
454 fe_status_t status;
455
456
457 ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
458 &client->tune_done);
459
460 smsdvb_read_status(fe, &status);
461
462 if (status & FE_HAS_LOCK)
463 return ret;
464
465
466 sms_board_lna_control(client->coredev, 1);
467 }
468
469 return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
470 &client->tune_done);
471}
472
473static int smsdvb_get_frontend(struct dvb_frontend *fe,
474 struct dvb_frontend_parameters *fep)
475{
476 struct smsdvb_client_t *client =
477 container_of(fe, struct smsdvb_client_t, frontend);
478
479 sms_debug("");
480
481
482 memcpy(fep, &client->fe_params,
483 sizeof(struct dvb_frontend_parameters));
484
485 return 0;
486}
487
488static int smsdvb_init(struct dvb_frontend *fe)
489{
490 struct smsdvb_client_t *client =
491 container_of(fe, struct smsdvb_client_t, frontend);
492
493 sms_board_power(client->coredev, 1);
494
495 sms_board_dvb3_event(client, DVB3_EVENT_INIT);
496 return 0;
497}
498
499static int smsdvb_sleep(struct dvb_frontend *fe)
500{
501 struct smsdvb_client_t *client =
502 container_of(fe, struct smsdvb_client_t, frontend);
503
504 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
505 sms_board_power(client->coredev, 0);
506
507 sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
508
509 return 0;
510}
511
512static void smsdvb_release(struct dvb_frontend *fe)
513{
514
515}
516
517static struct dvb_frontend_ops smsdvb_fe_ops = {
518 .info = {
519 .name = "Siano Mobile Digital MDTV Receiver",
520 .type = FE_OFDM,
521 .frequency_min = 44250000,
522 .frequency_max = 867250000,
523 .frequency_stepsize = 250000,
524 .caps = FE_CAN_INVERSION_AUTO |
525 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
526 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
527 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
528 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
529 FE_CAN_GUARD_INTERVAL_AUTO |
530 FE_CAN_RECOVER |
531 FE_CAN_HIERARCHY_AUTO,
532 },
533
534 .release = smsdvb_release,
535
536 .set_frontend = smsdvb_set_frontend,
537 .get_frontend = smsdvb_get_frontend,
538 .get_tune_settings = smsdvb_get_tune_settings,
539
540 .read_status = smsdvb_read_status,
541 .read_ber = smsdvb_read_ber,
542 .read_signal_strength = smsdvb_read_signal_strength,
543 .read_snr = smsdvb_read_snr,
544 .read_ucblocks = smsdvb_read_ucblocks,
545
546 .init = smsdvb_init,
547 .sleep = smsdvb_sleep,
548};
549
550static int smsdvb_hotplug(struct smscore_device_t *coredev,
551 struct device *device, int arrival)
552{
553 struct smsclient_params_t params;
554 struct smsdvb_client_t *client;
555 int rc;
556
557
558 if (!arrival)
559 return 0;
560
561 if (smscore_get_device_mode(coredev) != DEVICE_MODE_DVBT_BDA) {
562 sms_err("SMS Device mode is not set for "
563 "DVB operation.");
564 return 0;
565 }
566
567 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
568 if (!client) {
569 sms_err("kmalloc() failed");
570 return -ENOMEM;
571 }
572
573
574 rc = dvb_register_adapter(&client->adapter,
575 sms_get_board(
576 smscore_get_board_id(coredev))->name,
577 THIS_MODULE, device, adapter_nr);
578 if (rc < 0) {
579 sms_err("dvb_register_adapter() failed %d", rc);
580 goto adapter_error;
581 }
582
583
584 client->demux.dmx.capabilities = DMX_TS_FILTERING;
585 client->demux.filternum = 32;
586 client->demux.feednum = 32;
587 client->demux.start_feed = smsdvb_start_feed;
588 client->demux.stop_feed = smsdvb_stop_feed;
589
590 rc = dvb_dmx_init(&client->demux);
591 if (rc < 0) {
592 sms_err("dvb_dmx_init failed %d", rc);
593 goto dvbdmx_error;
594 }
595
596
597 client->dmxdev.filternum = 32;
598 client->dmxdev.demux = &client->demux.dmx;
599 client->dmxdev.capabilities = 0;
600
601 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
602 if (rc < 0) {
603 sms_err("dvb_dmxdev_init failed %d", rc);
604 goto dmxdev_error;
605 }
606
607
608 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
609 sizeof(struct dvb_frontend_ops));
610
611 rc = dvb_register_frontend(&client->adapter, &client->frontend);
612 if (rc < 0) {
613 sms_err("frontend registration failed %d", rc);
614 goto frontend_error;
615 }
616
617 params.initial_id = 1;
618 params.data_type = MSG_SMS_DVBT_BDA_DATA;
619 params.onresponse_handler = smsdvb_onresponse;
620 params.onremove_handler = smsdvb_onremove;
621 params.context = client;
622
623 rc = smscore_register_client(coredev, ¶ms, &client->smsclient);
624 if (rc < 0) {
625 sms_err("smscore_register_client() failed %d", rc);
626 goto client_error;
627 }
628
629 client->coredev = coredev;
630
631 init_completion(&client->tune_done);
632
633 kmutex_lock(&g_smsdvb_clientslock);
634
635 list_add(&client->entry, &g_smsdvb_clients);
636
637 kmutex_unlock(&g_smsdvb_clientslock);
638
639 client->event_fe_state = -1;
640 client->event_unc_state = -1;
641 sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
642
643 sms_info("success");
644 sms_board_setup(coredev);
645
646 return 0;
647
648client_error:
649 dvb_unregister_frontend(&client->frontend);
650
651frontend_error:
652 dvb_dmxdev_release(&client->dmxdev);
653
654dmxdev_error:
655 dvb_dmx_release(&client->demux);
656
657dvbdmx_error:
658 dvb_unregister_adapter(&client->adapter);
659
660adapter_error:
661 kfree(client);
662 return rc;
663}
664
665int smsdvb_module_init(void)
666{
667 int rc;
668
669 INIT_LIST_HEAD(&g_smsdvb_clients);
670 kmutex_init(&g_smsdvb_clientslock);
671
672 rc = smscore_register_hotplug(smsdvb_hotplug);
673
674 sms_debug("");
675
676 return rc;
677}
678
679void smsdvb_module_exit(void)
680{
681 smscore_unregister_hotplug(smsdvb_hotplug);
682
683 kmutex_lock(&g_smsdvb_clientslock);
684
685 while (!list_empty(&g_smsdvb_clients))
686 smsdvb_unregister_client(
687 (struct smsdvb_client_t *) g_smsdvb_clients.next);
688
689 kmutex_unlock(&g_smsdvb_clientslock);
690}
691
692module_init(smsdvb_module_init);
693module_exit(smsdvb_module_exit);
694
695MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
696MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
697MODULE_LICENSE("GPL");
698
