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Linux 3.12.39
[linux/fpc-iii.git] / drivers / media / common / siano / smsdvb-main.c
blob63676a8b024c874ab20c95862b5b1140e02d73b1
1 /****************************************************************
2
3 Siano Mobile Silicon, Inc.
4 MDTV receiver kernel modules.
5 Copyright (C) 2006-2008, Uri Shkolnik
6
7 This program is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
19
20 ****************************************************************/
21
22 #include <linux/module.h>
23 #include <linux/slab.h>
24 #include <linux/init.h>
25 #include <asm/div64.h>
26
27 #include "dmxdev.h"
28 #include "dvbdev.h"
29 #include "dvb_demux.h"
30 #include "dvb_frontend.h"
31
32 #include "smscoreapi.h"
33 #include "sms-cards.h"
34
35 #include "smsdvb.h"
36
37 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
38
39 static struct list_head g_smsdvb_clients;
40 static struct mutex g_smsdvb_clientslock;
41
42 static int sms_dbg;
43 module_param_named(debug, sms_dbg, int, 0644);
44 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
45
46
47 u32 sms_to_guard_interval_table[] = {
48 [0] = GUARD_INTERVAL_1_32,
49 [1] = GUARD_INTERVAL_1_16,
50 [2] = GUARD_INTERVAL_1_8,
51 [3] = GUARD_INTERVAL_1_4,
52 };
53
54 u32 sms_to_code_rate_table[] = {
55 [0] = FEC_1_2,
56 [1] = FEC_2_3,
57 [2] = FEC_3_4,
58 [3] = FEC_5_6,
59 [4] = FEC_7_8,
60 };
61
62
63 u32 sms_to_hierarchy_table[] = {
64 [0] = HIERARCHY_NONE,
65 [1] = HIERARCHY_1,
66 [2] = HIERARCHY_2,
67 [3] = HIERARCHY_4,
68 };
69
70 u32 sms_to_modulation_table[] = {
71 [0] = QPSK,
72 [1] = QAM_16,
73 [2] = QAM_64,
74 [3] = DQPSK,
75 };
76
77
78 /* Events that may come from DVB v3 adapter */
79 static void sms_board_dvb3_event(struct smsdvb_client_t *client,
80 enum SMS_DVB3_EVENTS event) {
81
82 struct smscore_device_t *coredev = client->coredev;
83 switch (event) {
84 case DVB3_EVENT_INIT:
85 sms_debug("DVB3_EVENT_INIT");
86 sms_board_event(coredev, BOARD_EVENT_BIND);
87 break;
88 case DVB3_EVENT_SLEEP:
89 sms_debug("DVB3_EVENT_SLEEP");
90 sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
91 break;
92 case DVB3_EVENT_HOTPLUG:
93 sms_debug("DVB3_EVENT_HOTPLUG");
94 sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
95 break;
96 case DVB3_EVENT_FE_LOCK:
97 if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
98 client->event_fe_state = DVB3_EVENT_FE_LOCK;
99 sms_debug("DVB3_EVENT_FE_LOCK");
100 sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
101 }
102 break;
103 case DVB3_EVENT_FE_UNLOCK:
104 if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
105 client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
106 sms_debug("DVB3_EVENT_FE_UNLOCK");
107 sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
108 }
109 break;
110 case DVB3_EVENT_UNC_OK:
111 if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
112 client->event_unc_state = DVB3_EVENT_UNC_OK;
113 sms_debug("DVB3_EVENT_UNC_OK");
114 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
115 }
116 break;
117 case DVB3_EVENT_UNC_ERR:
118 if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
119 client->event_unc_state = DVB3_EVENT_UNC_ERR;
120 sms_debug("DVB3_EVENT_UNC_ERR");
121 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
122 }
123 break;
124
125 default:
126 sms_err("Unknown dvb3 api event");
127 break;
128 }
129 }
130
131 static void smsdvb_stats_not_ready(struct dvb_frontend *fe)
132 {
133 struct smsdvb_client_t *client =
134 container_of(fe, struct smsdvb_client_t, frontend);
135 struct smscore_device_t *coredev = client->coredev;
136 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
137 int i, n_layers;
138
139 switch (smscore_get_device_mode(coredev)) {
140 case DEVICE_MODE_ISDBT:
141 case DEVICE_MODE_ISDBT_BDA:
142 n_layers = 4;
143 break;
144 default:
145 n_layers = 1;
146 }
147
148 /* Global stats */
149 c->strength.len = 1;
150 c->cnr.len = 1;
151 c->strength.stat[0].scale = FE_SCALE_DECIBEL;
152 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
153
154 /* Per-layer stats */
155 c->post_bit_error.len = n_layers;
156 c->post_bit_count.len = n_layers;
157 c->block_error.len = n_layers;
158 c->block_count.len = n_layers;
159
160 /*
161 * Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically
162 * changed when the stats become available.
163 */
164 for (i = 0; i < n_layers; i++) {
165 c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
166 c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
167 c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
168 c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
169 }
170 }
171
172 static inline int sms_to_mode(u32 mode)
173 {
174 switch (mode) {
175 case 2:
176 return TRANSMISSION_MODE_2K;
177 case 4:
178 return TRANSMISSION_MODE_4K;
179 case 8:
180 return TRANSMISSION_MODE_8K;
181 }
182 return TRANSMISSION_MODE_AUTO;
183 }
184
185 static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked)
186 {
187 if (is_demod_locked)
188 return FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
189 FE_HAS_SYNC | FE_HAS_LOCK;
190
191 if (is_rf_locked)
192 return FE_HAS_SIGNAL | FE_HAS_CARRIER;
193
194 return 0;
195 }
196
197 static inline u32 sms_to_bw(u32 value)
198 {
199 return value * 1000000;
200 }
201
202 #define convert_from_table(value, table, defval) ({ \
203 u32 __ret; \
204 if (value < ARRAY_SIZE(table)) \
205 __ret = table[value]; \
206 else \
207 __ret = defval; \
208 __ret; \
209 })
210
211 #define sms_to_guard_interval(value) \
212 convert_from_table(value, sms_to_guard_interval_table, \
213 GUARD_INTERVAL_AUTO);
214
215 #define sms_to_code_rate(value) \
216 convert_from_table(value, sms_to_code_rate_table, \
217 FEC_NONE);
218
219 #define sms_to_hierarchy(value) \
220 convert_from_table(value, sms_to_hierarchy_table, \
221 FEC_NONE);
222
223 #define sms_to_modulation(value) \
224 convert_from_table(value, sms_to_modulation_table, \
225 FEC_NONE);
226
227 static void smsdvb_update_tx_params(struct smsdvb_client_t *client,
228 struct sms_tx_stats *p)
229 {
230 struct dvb_frontend *fe = &client->frontend;
231 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
232
233 c->frequency = p->frequency;
234 client->fe_status = sms_to_status(p->is_demod_locked, 0);
235 c->bandwidth_hz = sms_to_bw(p->bandwidth);
236 c->transmission_mode = sms_to_mode(p->transmission_mode);
237 c->guard_interval = sms_to_guard_interval(p->guard_interval);
238 c->code_rate_HP = sms_to_code_rate(p->code_rate);
239 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
240 c->hierarchy = sms_to_hierarchy(p->hierarchy);
241 c->modulation = sms_to_modulation(p->constellation);
242 }
243
244 static void smsdvb_update_per_slices(struct smsdvb_client_t *client,
245 struct RECEPTION_STATISTICS_PER_SLICES_S *p)
246 {
247 struct dvb_frontend *fe = &client->frontend;
248 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
249 u64 tmp;
250
251 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
252 c->modulation = sms_to_modulation(p->constellation);
253
254 /* signal Strength, in DBm */
255 c->strength.stat[0].uvalue = p->in_band_power * 1000;
256
257 /* Carrier to noise ratio, in DB */
258 c->cnr.stat[0].svalue = p->snr * 1000;
259
260 /* PER/BER requires demod lock */
261 if (!p->is_demod_locked)
262 return;
263
264 /* TS PER */
265 client->last_per = c->block_error.stat[0].uvalue;
266 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
267 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
268 c->block_error.stat[0].uvalue += p->ets_packets;
269 c->block_count.stat[0].uvalue += p->ets_packets + p->ts_packets;
270
271 /* ber */
272 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
273 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
274 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
275 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
276
277 /* Legacy PER/BER */
278 tmp = p->ets_packets * 65535;
279 if (p->ts_packets + p->ets_packets)
280 do_div(tmp, p->ts_packets + p->ets_packets);
281 client->legacy_per = tmp;
282 }
283
284 static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client,
285 struct sms_stats *p)
286 {
287 struct dvb_frontend *fe = &client->frontend;
288 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
289
290 if (client->prt_dvb_stats)
291 client->prt_dvb_stats(client->debug_data, p);
292
293 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
294
295 /* Update DVB modulation parameters */
296 c->frequency = p->frequency;
297 client->fe_status = sms_to_status(p->is_demod_locked, 0);
298 c->bandwidth_hz = sms_to_bw(p->bandwidth);
299 c->transmission_mode = sms_to_mode(p->transmission_mode);
300 c->guard_interval = sms_to_guard_interval(p->guard_interval);
301 c->code_rate_HP = sms_to_code_rate(p->code_rate);
302 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
303 c->hierarchy = sms_to_hierarchy(p->hierarchy);
304 c->modulation = sms_to_modulation(p->constellation);
305
306 /* update reception data */
307 c->lna = p->is_external_lna_on ? 1 : 0;
308
309 /* Carrier to noise ratio, in DB */
310 c->cnr.stat[0].svalue = p->SNR * 1000;
311
312 /* signal Strength, in DBm */
313 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
314
315 /* PER/BER requires demod lock */
316 if (!p->is_demod_locked)
317 return;
318
319 /* TS PER */
320 client->last_per = c->block_error.stat[0].uvalue;
321 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
322 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
323 c->block_error.stat[0].uvalue += p->error_ts_packets;
324 c->block_count.stat[0].uvalue += p->total_ts_packets;
325
326 /* ber */
327 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
328 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
329 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
330 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
331
332 /* Legacy PER/BER */
333 client->legacy_ber = p->ber;
334 };
335
336 static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client,
337 struct sms_isdbt_stats *p)
338 {
339 struct dvb_frontend *fe = &client->frontend;
340 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
341 struct sms_isdbt_layer_stats *lr;
342 int i, n_layers;
343
344 if (client->prt_isdb_stats)
345 client->prt_isdb_stats(client->debug_data, p);
346
347 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
348
349 /*
350 * Firmware 2.1 seems to report only lock status and
351 * signal strength. The signal strength indicator is at the
352 * wrong field.
353 */
354 if (p->statistics_type == 0) {
355 c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000;
356 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
357 return;
358 }
359
360 /* Update ISDB-T transmission parameters */
361 c->frequency = p->frequency;
362 c->bandwidth_hz = sms_to_bw(p->bandwidth);
363 c->transmission_mode = sms_to_mode(p->transmission_mode);
364 c->guard_interval = sms_to_guard_interval(p->guard_interval);
365 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
366 n_layers = p->num_of_layers;
367 if (n_layers < 1)
368 n_layers = 1;
369 if (n_layers > 3)
370 n_layers = 3;
371 c->isdbt_layer_enabled = 0;
372
373 /* update reception data */
374 c->lna = p->is_external_lna_on ? 1 : 0;
375
376 /* Carrier to noise ratio, in DB */
377 c->cnr.stat[0].svalue = p->SNR * 1000;
378
379 /* signal Strength, in DBm */
380 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
381
382 /* PER/BER and per-layer stats require demod lock */
383 if (!p->is_demod_locked)
384 return;
385
386 client->last_per = c->block_error.stat[0].uvalue;
387
388 /* Clears global counters, as the code below will sum it again */
389 c->block_error.stat[0].uvalue = 0;
390 c->block_count.stat[0].uvalue = 0;
391 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
392 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
393 c->post_bit_error.stat[0].uvalue = 0;
394 c->post_bit_count.stat[0].uvalue = 0;
395 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
396 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
397
398 for (i = 0; i < n_layers; i++) {
399 lr = &p->layer_info[i];
400
401 /* Update per-layer transmission parameters */
402 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
403 c->isdbt_layer_enabled |= 1 << i;
404 c->layer[i].segment_count = lr->number_of_segments;
405 } else {
406 continue;
407 }
408 c->layer[i].modulation = sms_to_modulation(lr->constellation);
409
410 /* TS PER */
411 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
412 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
413 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
414 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
415
416 /* Update global PER counter */
417 c->block_error.stat[0].uvalue += lr->error_ts_packets;
418 c->block_count.stat[0].uvalue += lr->total_ts_packets;
419
420 /* BER */
421 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
422 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
423 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
424 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
425
426 /* Update global BER counter */
427 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
428 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
429 }
430 }
431
432 static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client,
433 struct sms_isdbt_stats_ex *p)
434 {
435 struct dvb_frontend *fe = &client->frontend;
436 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
437 struct sms_isdbt_layer_stats *lr;
438 int i, n_layers;
439
440 if (client->prt_isdb_stats_ex)
441 client->prt_isdb_stats_ex(client->debug_data, p);
442
443 /* Update ISDB-T transmission parameters */
444 c->frequency = p->frequency;
445 client->fe_status = sms_to_status(p->is_demod_locked, 0);
446 c->bandwidth_hz = sms_to_bw(p->bandwidth);
447 c->transmission_mode = sms_to_mode(p->transmission_mode);
448 c->guard_interval = sms_to_guard_interval(p->guard_interval);
449 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
450 n_layers = p->num_of_layers;
451 if (n_layers < 1)
452 n_layers = 1;
453 if (n_layers > 3)
454 n_layers = 3;
455 c->isdbt_layer_enabled = 0;
456
457 /* update reception data */
458 c->lna = p->is_external_lna_on ? 1 : 0;
459
460 /* Carrier to noise ratio, in DB */
461 c->cnr.stat[0].svalue = p->SNR * 1000;
462
463 /* signal Strength, in DBm */
464 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
465
466 /* PER/BER and per-layer stats require demod lock */
467 if (!p->is_demod_locked)
468 return;
469
470 client->last_per = c->block_error.stat[0].uvalue;
471
472 /* Clears global counters, as the code below will sum it again */
473 c->block_error.stat[0].uvalue = 0;
474 c->block_count.stat[0].uvalue = 0;
475 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
476 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
477 c->post_bit_error.stat[0].uvalue = 0;
478 c->post_bit_count.stat[0].uvalue = 0;
479 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
480 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
481
482 c->post_bit_error.len = n_layers + 1;
483 c->post_bit_count.len = n_layers + 1;
484 c->block_error.len = n_layers + 1;
485 c->block_count.len = n_layers + 1;
486 for (i = 0; i < n_layers; i++) {
487 lr = &p->layer_info[i];
488
489 /* Update per-layer transmission parameters */
490 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
491 c->isdbt_layer_enabled |= 1 << i;
492 c->layer[i].segment_count = lr->number_of_segments;
493 } else {
494 continue;
495 }
496 c->layer[i].modulation = sms_to_modulation(lr->constellation);
497
498 /* TS PER */
499 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
500 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
501 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
502 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
503
504 /* Update global PER counter */
505 c->block_error.stat[0].uvalue += lr->error_ts_packets;
506 c->block_count.stat[0].uvalue += lr->total_ts_packets;
507
508 /* ber */
509 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
510 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
511 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
512 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
513
514 /* Update global ber counter */
515 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
516 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
517 }
518 }
519
520 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
521 {
522 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
523 struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) (((u8 *) cb->p)
524 + cb->offset);
525 void *p = phdr + 1;
526 struct dvb_frontend *fe = &client->frontend;
527 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
528 bool is_status_update = false;
529
530 switch (phdr->msg_type) {
531 case MSG_SMS_DVBT_BDA_DATA:
532 /*
533 * Only feed data to dvb demux if are there any feed listening
534 * to it and if the device has tuned
535 */
536 if (client->feed_users && client->has_tuned)
537 dvb_dmx_swfilter(&client->demux, p,
538 cb->size - sizeof(struct sms_msg_hdr));
539 break;
540
541 case MSG_SMS_RF_TUNE_RES:
542 case MSG_SMS_ISDBT_TUNE_RES:
543 complete(&client->tune_done);
544 break;
545
546 case MSG_SMS_SIGNAL_DETECTED_IND:
547 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
548 FE_HAS_VITERBI | FE_HAS_SYNC |
549 FE_HAS_LOCK;
550
551 is_status_update = true;
552 break;
553
554 case MSG_SMS_NO_SIGNAL_IND:
555 client->fe_status = 0;
556
557 is_status_update = true;
558 break;
559
560 case MSG_SMS_TRANSMISSION_IND:
561 smsdvb_update_tx_params(client, p);
562
563 is_status_update = true;
564 break;
565
566 case MSG_SMS_HO_PER_SLICES_IND:
567 smsdvb_update_per_slices(client, p);
568
569 is_status_update = true;
570 break;
571
572 case MSG_SMS_GET_STATISTICS_RES:
573 switch (smscore_get_device_mode(client->coredev)) {
574 case DEVICE_MODE_ISDBT:
575 case DEVICE_MODE_ISDBT_BDA:
576 smsdvb_update_isdbt_stats(client, p);
577 break;
578 default:
579 /* Skip sms_msg_statistics_info:request_result field */
580 smsdvb_update_dvb_stats(client, p + sizeof(u32));
581 }
582
583 is_status_update = true;
584 break;
585
586 /* Only for ISDB-T */
587 case MSG_SMS_GET_STATISTICS_EX_RES:
588 /* Skip sms_msg_statistics_info:request_result field? */
589 smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32));
590 is_status_update = true;
591 break;
592 default:
593 sms_info("message not handled");
594 }
595 smscore_putbuffer(client->coredev, cb);
596
597 if (is_status_update) {
598 if (client->fe_status & FE_HAS_LOCK) {
599 sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
600 if (client->last_per == c->block_error.stat[0].uvalue)
601 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
602 else
603 sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR);
604 client->has_tuned = true;
605 } else {
606 smsdvb_stats_not_ready(fe);
607 client->has_tuned = false;
608 sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
609 }
610 complete(&client->stats_done);
611 }
612
613 return 0;
614 }
615
616 static void smsdvb_unregister_client(struct smsdvb_client_t *client)
617 {
618 /* must be called under clientslock */
619
620 list_del(&client->entry);
621
622 smsdvb_debugfs_release(client);
623 smscore_unregister_client(client->smsclient);
624 dvb_unregister_frontend(&client->frontend);
625 dvb_dmxdev_release(&client->dmxdev);
626 dvb_dmx_release(&client->demux);
627 dvb_unregister_adapter(&client->adapter);
628 kfree(client);
629 }
630
631 static void smsdvb_onremove(void *context)
632 {
633 kmutex_lock(&g_smsdvb_clientslock);
634
635 smsdvb_unregister_client((struct smsdvb_client_t *) context);
636
637 kmutex_unlock(&g_smsdvb_clientslock);
638 }
639
640 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
641 {
642 struct smsdvb_client_t *client =
643 container_of(feed->demux, struct smsdvb_client_t, demux);
644 struct sms_msg_data pid_msg;
645
646 sms_debug("add pid %d(%x)",
647 feed->pid, feed->pid);
648
649 client->feed_users++;
650
651 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
652 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
653 pid_msg.x_msg_header.msg_flags = 0;
654 pid_msg.x_msg_header.msg_type = MSG_SMS_ADD_PID_FILTER_REQ;
655 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
656 pid_msg.msg_data[0] = feed->pid;
657
658 return smsclient_sendrequest(client->smsclient,
659 &pid_msg, sizeof(pid_msg));
660 }
661
662 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
663 {
664 struct smsdvb_client_t *client =
665 container_of(feed->demux, struct smsdvb_client_t, demux);
666 struct sms_msg_data pid_msg;
667
668 sms_debug("remove pid %d(%x)",
669 feed->pid, feed->pid);
670
671 client->feed_users--;
672
673 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
674 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
675 pid_msg.x_msg_header.msg_flags = 0;
676 pid_msg.x_msg_header.msg_type = MSG_SMS_REMOVE_PID_FILTER_REQ;
677 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
678 pid_msg.msg_data[0] = feed->pid;
679
680 return smsclient_sendrequest(client->smsclient,
681 &pid_msg, sizeof(pid_msg));
682 }
683
684 static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
685 void *buffer, size_t size,
686 struct completion *completion)
687 {
688 int rc;
689
690 rc = smsclient_sendrequest(client->smsclient, buffer, size);
691 if (rc < 0)
692 return rc;
693
694 return wait_for_completion_timeout(completion,
695 msecs_to_jiffies(2000)) ?
696 0 : -ETIME;
697 }
698
699 static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
700 {
701 int rc;
702 struct sms_msg_hdr msg;
703
704 /* Don't request stats too fast */
705 if (client->get_stats_jiffies &&
706 (!time_after(jiffies, client->get_stats_jiffies)))
707 return 0;
708 client->get_stats_jiffies = jiffies + msecs_to_jiffies(100);
709
710 msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
711 msg.msg_dst_id = HIF_TASK;
712 msg.msg_flags = 0;
713 msg.msg_length = sizeof(msg);
714
715 switch (smscore_get_device_mode(client->coredev)) {
716 case DEVICE_MODE_ISDBT:
717 case DEVICE_MODE_ISDBT_BDA:
718 /*
719 * Check for firmware version, to avoid breaking for old cards
720 */
721 if (client->coredev->fw_version >= 0x800)
722 msg.msg_type = MSG_SMS_GET_STATISTICS_EX_REQ;
723 else
724 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
725 break;
726 default:
727 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
728 }
729
730 rc = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
731 &client->stats_done);
732
733 return rc;
734 }
735
736 static inline int led_feedback(struct smsdvb_client_t *client)
737 {
738 if (!(client->fe_status & FE_HAS_LOCK))
739 return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
740
741 return sms_board_led_feedback(client->coredev,
742 (client->legacy_ber == 0) ?
743 SMS_LED_HI : SMS_LED_LO);
744 }
745
746 static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
747 {
748 int rc;
749 struct smsdvb_client_t *client;
750 client = container_of(fe, struct smsdvb_client_t, frontend);
751
752 rc = smsdvb_send_statistics_request(client);
753
754 *stat = client->fe_status;
755
756 led_feedback(client);
757
758 return rc;
759 }
760
761 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
762 {
763 int rc;
764 struct smsdvb_client_t *client;
765
766 client = container_of(fe, struct smsdvb_client_t, frontend);
767
768 rc = smsdvb_send_statistics_request(client);
769
770 *ber = client->legacy_ber;
771
772 led_feedback(client);
773
774 return rc;
775 }
776
777 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
778 {
779 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
780 int rc;
781 s32 power = (s32) c->strength.stat[0].uvalue;
782 struct smsdvb_client_t *client;
783
784 client = container_of(fe, struct smsdvb_client_t, frontend);
785
786 rc = smsdvb_send_statistics_request(client);
787
788 if (power < -95)
789 *strength = 0;
790 else if (power > -29)
791 *strength = 65535;
792 else
793 *strength = (power + 95) * 65535 / 66;
794
795 led_feedback(client);
796
797 return rc;
798 }
799
800 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
801 {
802 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
803 int rc;
804 struct smsdvb_client_t *client;
805
806 client = container_of(fe, struct smsdvb_client_t, frontend);
807
808 rc = smsdvb_send_statistics_request(client);
809
810 /* Preferred scale for SNR with legacy API: 0.1 dB */
811 *snr = ((u32)c->cnr.stat[0].svalue) / 100;
812
813 led_feedback(client);
814
815 return rc;
816 }
817
818 static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
819 {
820 int rc;
821 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
822 struct smsdvb_client_t *client;
823
824 client = container_of(fe, struct smsdvb_client_t, frontend);
825
826 rc = smsdvb_send_statistics_request(client);
827
828 *ucblocks = c->block_error.stat[0].uvalue;
829
830 led_feedback(client);
831
832 return rc;
833 }
834
835 static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
836 struct dvb_frontend_tune_settings *tune)
837 {
838 sms_debug("");
839
840 tune->min_delay_ms = 400;
841 tune->step_size = 250000;
842 tune->max_drift = 0;
843 return 0;
844 }
845
846 static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe)
847 {
848 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
849 struct smsdvb_client_t *client =
850 container_of(fe, struct smsdvb_client_t, frontend);
851
852 struct {
853 struct sms_msg_hdr msg;
854 u32 Data[3];
855 } msg;
856
857 int ret;
858
859 client->fe_status = 0;
860 client->event_fe_state = -1;
861 client->event_unc_state = -1;
862 fe->dtv_property_cache.delivery_system = SYS_DVBT;
863
864 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
865 msg.msg.msg_dst_id = HIF_TASK;
866 msg.msg.msg_flags = 0;
867 msg.msg.msg_type = MSG_SMS_RF_TUNE_REQ;
868 msg.msg.msg_length = sizeof(msg);
869 msg.Data[0] = c->frequency;
870 msg.Data[2] = 12000000;
871
872 sms_info("%s: freq %d band %d", __func__, c->frequency,
873 c->bandwidth_hz);
874
875 switch (c->bandwidth_hz / 1000000) {
876 case 8:
877 msg.Data[1] = BW_8_MHZ;
878 break;
879 case 7:
880 msg.Data[1] = BW_7_MHZ;
881 break;
882 case 6:
883 msg.Data[1] = BW_6_MHZ;
884 break;
885 case 0:
886 return -EOPNOTSUPP;
887 default:
888 return -EINVAL;
889 }
890 /* Disable LNA, if any. An error is returned if no LNA is present */
891 ret = sms_board_lna_control(client->coredev, 0);
892 if (ret == 0) {
893 fe_status_t status;
894
895 /* tune with LNA off at first */
896 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
897 &client->tune_done);
898
899 smsdvb_read_status(fe, &status);
900
901 if (status & FE_HAS_LOCK)
902 return ret;
903
904 /* previous tune didn't lock - enable LNA and tune again */
905 sms_board_lna_control(client->coredev, 1);
906 }
907
908 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
909 &client->tune_done);
910 }
911
912 static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
913 {
914 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
915 struct smsdvb_client_t *client =
916 container_of(fe, struct smsdvb_client_t, frontend);
917 int board_id = smscore_get_board_id(client->coredev);
918 struct sms_board *board = sms_get_board(board_id);
919 enum sms_device_type_st type = board->type;
920 int ret;
921
922 struct {
923 struct sms_msg_hdr msg;
924 u32 Data[4];
925 } msg;
926
927 fe->dtv_property_cache.delivery_system = SYS_ISDBT;
928
929 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
930 msg.msg.msg_dst_id = HIF_TASK;
931 msg.msg.msg_flags = 0;
932 msg.msg.msg_type = MSG_SMS_ISDBT_TUNE_REQ;
933 msg.msg.msg_length = sizeof(msg);
934
935 if (c->isdbt_sb_segment_idx == -1)
936 c->isdbt_sb_segment_idx = 0;
937
938 if (!c->isdbt_layer_enabled)
939 c->isdbt_layer_enabled = 7;
940
941 msg.Data[0] = c->frequency;
942 msg.Data[1] = BW_ISDBT_1SEG;
943 msg.Data[2] = 12000000;
944 msg.Data[3] = c->isdbt_sb_segment_idx;
945
946 if (c->isdbt_partial_reception) {
947 if ((type == SMS_PELE || type == SMS_RIO) &&
948 c->isdbt_sb_segment_count > 3)
949 msg.Data[1] = BW_ISDBT_13SEG;
950 else if (c->isdbt_sb_segment_count > 1)
951 msg.Data[1] = BW_ISDBT_3SEG;
952 } else if (type == SMS_PELE || type == SMS_RIO)
953 msg.Data[1] = BW_ISDBT_13SEG;
954
955 c->bandwidth_hz = 6000000;
956
957 sms_info("%s: freq %d segwidth %d segindex %d", __func__,
958 c->frequency, c->isdbt_sb_segment_count,
959 c->isdbt_sb_segment_idx);
960
961 /* Disable LNA, if any. An error is returned if no LNA is present */
962 ret = sms_board_lna_control(client->coredev, 0);
963 if (ret == 0) {
964 fe_status_t status;
965
966 /* tune with LNA off at first */
967 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
968 &client->tune_done);
969
970 smsdvb_read_status(fe, &status);
971
972 if (status & FE_HAS_LOCK)
973 return ret;
974
975 /* previous tune didn't lock - enable LNA and tune again */
976 sms_board_lna_control(client->coredev, 1);
977 }
978 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
979 &client->tune_done);
980 }
981
982 static int smsdvb_set_frontend(struct dvb_frontend *fe)
983 {
984 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
985 struct smsdvb_client_t *client =
986 container_of(fe, struct smsdvb_client_t, frontend);
987 struct smscore_device_t *coredev = client->coredev;
988
989 smsdvb_stats_not_ready(fe);
990 c->strength.stat[0].uvalue = 0;
991 c->cnr.stat[0].uvalue = 0;
992
993 client->has_tuned = false;
994
995 switch (smscore_get_device_mode(coredev)) {
996 case DEVICE_MODE_DVBT:
997 case DEVICE_MODE_DVBT_BDA:
998 return smsdvb_dvbt_set_frontend(fe);
999 case DEVICE_MODE_ISDBT:
1000 case DEVICE_MODE_ISDBT_BDA:
1001 return smsdvb_isdbt_set_frontend(fe);
1002 default:
1003 return -EINVAL;
1004 }
1005 }
1006
1007 /* Nothing to do here, as stats are automatically updated */
1008 static int smsdvb_get_frontend(struct dvb_frontend *fe)
1009 {
1010 return 0;
1011 }
1012
1013 static int smsdvb_init(struct dvb_frontend *fe)
1014 {
1015 struct smsdvb_client_t *client =
1016 container_of(fe, struct smsdvb_client_t, frontend);
1017
1018 sms_board_power(client->coredev, 1);
1019
1020 sms_board_dvb3_event(client, DVB3_EVENT_INIT);
1021 return 0;
1022 }
1023
1024 static int smsdvb_sleep(struct dvb_frontend *fe)
1025 {
1026 struct smsdvb_client_t *client =
1027 container_of(fe, struct smsdvb_client_t, frontend);
1028
1029 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
1030 sms_board_power(client->coredev, 0);
1031
1032 sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
1033
1034 return 0;
1035 }
1036
1037 static void smsdvb_release(struct dvb_frontend *fe)
1038 {
1039 /* do nothing */
1040 }
1041
1042 static struct dvb_frontend_ops smsdvb_fe_ops = {
1043 .info = {
1044 .name = "Siano Mobile Digital MDTV Receiver",
1045 .frequency_min = 44250000,
1046 .frequency_max = 867250000,
1047 .frequency_stepsize = 250000,
1048 .caps = FE_CAN_INVERSION_AUTO |
1049 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1050 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1051 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1052 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1053 FE_CAN_GUARD_INTERVAL_AUTO |
1054 FE_CAN_RECOVER |
1055 FE_CAN_HIERARCHY_AUTO,
1056 },
1057
1058 .release = smsdvb_release,
1059
1060 .set_frontend = smsdvb_set_frontend,
1061 .get_frontend = smsdvb_get_frontend,
1062 .get_tune_settings = smsdvb_get_tune_settings,
1063
1064 .read_status = smsdvb_read_status,
1065 .read_ber = smsdvb_read_ber,
1066 .read_signal_strength = smsdvb_read_signal_strength,
1067 .read_snr = smsdvb_read_snr,
1068 .read_ucblocks = smsdvb_read_ucblocks,
1069
1070 .init = smsdvb_init,
1071 .sleep = smsdvb_sleep,
1072 };
1073
1074 static int smsdvb_hotplug(struct smscore_device_t *coredev,
1075 struct device *device, int arrival)
1076 {
1077 struct smsclient_params_t params;
1078 struct smsdvb_client_t *client;
1079 int rc;
1080
1081 /* device removal handled by onremove callback */
1082 if (!arrival)
1083 return 0;
1084 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
1085 if (!client) {
1086 sms_err("kmalloc() failed");
1087 return -ENOMEM;
1088 }
1089
1090 /* register dvb adapter */
1091 rc = dvb_register_adapter(&client->adapter,
1092 sms_get_board(
1093 smscore_get_board_id(coredev))->name,
1094 THIS_MODULE, device, adapter_nr);
1095 if (rc < 0) {
1096 sms_err("dvb_register_adapter() failed %d", rc);
1097 goto adapter_error;
1098 }
1099
1100 /* init dvb demux */
1101 client->demux.dmx.capabilities = DMX_TS_FILTERING;
1102 client->demux.filternum = 32; /* todo: nova ??? */
1103 client->demux.feednum = 32;
1104 client->demux.start_feed = smsdvb_start_feed;
1105 client->demux.stop_feed = smsdvb_stop_feed;
1106
1107 rc = dvb_dmx_init(&client->demux);
1108 if (rc < 0) {
1109 sms_err("dvb_dmx_init failed %d", rc);
1110 goto dvbdmx_error;
1111 }
1112
1113 /* init dmxdev */
1114 client->dmxdev.filternum = 32;
1115 client->dmxdev.demux = &client->demux.dmx;
1116 client->dmxdev.capabilities = 0;
1117
1118 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
1119 if (rc < 0) {
1120 sms_err("dvb_dmxdev_init failed %d", rc);
1121 goto dmxdev_error;
1122 }
1123
1124 /* init and register frontend */
1125 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
1126 sizeof(struct dvb_frontend_ops));
1127
1128 switch (smscore_get_device_mode(coredev)) {
1129 case DEVICE_MODE_DVBT:
1130 case DEVICE_MODE_DVBT_BDA:
1131 client->frontend.ops.delsys[0] = SYS_DVBT;
1132 break;
1133 case DEVICE_MODE_ISDBT:
1134 case DEVICE_MODE_ISDBT_BDA:
1135 client->frontend.ops.delsys[0] = SYS_ISDBT;
1136 break;
1137 }
1138
1139 rc = dvb_register_frontend(&client->adapter, &client->frontend);
1140 if (rc < 0) {
1141 sms_err("frontend registration failed %d", rc);
1142 goto frontend_error;
1143 }
1144
1145 params.initial_id = 1;
1146 params.data_type = MSG_SMS_DVBT_BDA_DATA;
1147 params.onresponse_handler = smsdvb_onresponse;
1148 params.onremove_handler = smsdvb_onremove;
1149 params.context = client;
1150
1151 rc = smscore_register_client(coredev, &params, &client->smsclient);
1152 if (rc < 0) {
1153 sms_err("smscore_register_client() failed %d", rc);
1154 goto client_error;
1155 }
1156
1157 client->coredev = coredev;
1158
1159 init_completion(&client->tune_done);
1160 init_completion(&client->stats_done);
1161
1162 kmutex_lock(&g_smsdvb_clientslock);
1163
1164 list_add(&client->entry, &g_smsdvb_clients);
1165
1166 kmutex_unlock(&g_smsdvb_clientslock);
1167
1168 client->event_fe_state = -1;
1169 client->event_unc_state = -1;
1170 sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
1171
1172 sms_info("success");
1173 sms_board_setup(coredev);
1174
1175 if (smsdvb_debugfs_create(client) < 0)
1176 sms_info("failed to create debugfs node");
1177
1178 return 0;
1179
1180 client_error:
1181 dvb_unregister_frontend(&client->frontend);
1182
1183 frontend_error:
1184 dvb_dmxdev_release(&client->dmxdev);
1185
1186 dmxdev_error:
1187 dvb_dmx_release(&client->demux);
1188
1189 dvbdmx_error:
1190 dvb_unregister_adapter(&client->adapter);
1191
1192 adapter_error:
1193 kfree(client);
1194 return rc;
1195 }
1196
1197 static int __init smsdvb_module_init(void)
1198 {
1199 int rc;
1200
1201 INIT_LIST_HEAD(&g_smsdvb_clients);
1202 kmutex_init(&g_smsdvb_clientslock);
1203
1204 smsdvb_debugfs_register();
1205
1206 rc = smscore_register_hotplug(smsdvb_hotplug);
1207
1208 sms_debug("");
1209
1210 return rc;
1211 }
1212
1213 static void __exit smsdvb_module_exit(void)
1214 {
1215 smscore_unregister_hotplug(smsdvb_hotplug);
1216
1217 kmutex_lock(&g_smsdvb_clientslock);
1218
1219 while (!list_empty(&g_smsdvb_clients))
1220 smsdvb_unregister_client((struct smsdvb_client_t *)g_smsdvb_clients.next);
1221
1222 smsdvb_debugfs_unregister();
1223
1224 kmutex_unlock(&g_smsdvb_clientslock);
1225 }
1226
1227 module_init(smsdvb_module_init);
1228 module_exit(smsdvb_module_exit);
1229
1230 MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
1231 MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
1232 MODULE_LICENSE("GPL");
Linux with added FPC-III support