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Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
[drm/drm-misc.git] / drivers / media / common / siano / smsdvb-main.c
blob44d8fe8b220e79af5abb274692221c1174993735
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /****************************************************************
3
4 Siano Mobile Silicon, Inc.
5 MDTV receiver kernel modules.
6 Copyright (C) 2006-2008, Uri Shkolnik
7
8
9 ****************************************************************/
10
11 #include "smscoreapi.h"
12
13 #include <linux/module.h>
14 #include <linux/slab.h>
15 #include <linux/init.h>
16 #include <asm/div64.h>
17
18 #include <media/dmxdev.h>
19 #include <media/dvbdev.h>
20 #include <media/dvb_demux.h>
21 #include <media/dvb_frontend.h>
22
23 #include "sms-cards.h"
24
25 #include "smsdvb.h"
26
27 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
28
29 static LIST_HEAD(g_smsdvb_clients);
30 static DEFINE_MUTEX(g_smsdvb_clientslock);
31
32 static u32 sms_to_guard_interval_table[] = {
33 [0] = GUARD_INTERVAL_1_32,
34 [1] = GUARD_INTERVAL_1_16,
35 [2] = GUARD_INTERVAL_1_8,
36 [3] = GUARD_INTERVAL_1_4,
37 };
38
39 static u32 sms_to_code_rate_table[] = {
40 [0] = FEC_1_2,
41 [1] = FEC_2_3,
42 [2] = FEC_3_4,
43 [3] = FEC_5_6,
44 [4] = FEC_7_8,
45 };
46
47
48 static u32 sms_to_hierarchy_table[] = {
49 [0] = HIERARCHY_NONE,
50 [1] = HIERARCHY_1,
51 [2] = HIERARCHY_2,
52 [3] = HIERARCHY_4,
53 };
54
55 static u32 sms_to_modulation_table[] = {
56 [0] = QPSK,
57 [1] = QAM_16,
58 [2] = QAM_64,
59 [3] = DQPSK,
60 };
61
62
63 /* Events that may come from DVB v3 adapter */
64 static void sms_board_dvb3_event(struct smsdvb_client_t *client,
65 enum SMS_DVB3_EVENTS event) {
66
67 struct smscore_device_t *coredev = client->coredev;
68 switch (event) {
69 case DVB3_EVENT_INIT:
70 pr_debug("DVB3_EVENT_INIT\n");
71 sms_board_event(coredev, BOARD_EVENT_BIND);
72 break;
73 case DVB3_EVENT_SLEEP:
74 pr_debug("DVB3_EVENT_SLEEP\n");
75 sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
76 break;
77 case DVB3_EVENT_HOTPLUG:
78 pr_debug("DVB3_EVENT_HOTPLUG\n");
79 sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
80 break;
81 case DVB3_EVENT_FE_LOCK:
82 if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
83 client->event_fe_state = DVB3_EVENT_FE_LOCK;
84 pr_debug("DVB3_EVENT_FE_LOCK\n");
85 sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
86 }
87 break;
88 case DVB3_EVENT_FE_UNLOCK:
89 if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
90 client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
91 pr_debug("DVB3_EVENT_FE_UNLOCK\n");
92 sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
93 }
94 break;
95 case DVB3_EVENT_UNC_OK:
96 if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
97 client->event_unc_state = DVB3_EVENT_UNC_OK;
98 pr_debug("DVB3_EVENT_UNC_OK\n");
99 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
100 }
101 break;
102 case DVB3_EVENT_UNC_ERR:
103 if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
104 client->event_unc_state = DVB3_EVENT_UNC_ERR;
105 pr_debug("DVB3_EVENT_UNC_ERR\n");
106 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
107 }
108 break;
109
110 default:
111 pr_err("Unknown dvb3 api event\n");
112 break;
113 }
114 }
115
116 static void smsdvb_stats_not_ready(struct dvb_frontend *fe)
117 {
118 struct smsdvb_client_t *client =
119 container_of(fe, struct smsdvb_client_t, frontend);
120 struct smscore_device_t *coredev = client->coredev;
121 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
122 int i, n_layers;
123
124 switch (smscore_get_device_mode(coredev)) {
125 case DEVICE_MODE_ISDBT:
126 case DEVICE_MODE_ISDBT_BDA:
127 n_layers = 4;
128 break;
129 default:
130 n_layers = 1;
131 }
132
133 /* Global stats */
134 c->strength.len = 1;
135 c->cnr.len = 1;
136 c->strength.stat[0].scale = FE_SCALE_DECIBEL;
137 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
138
139 /* Per-layer stats */
140 c->post_bit_error.len = n_layers;
141 c->post_bit_count.len = n_layers;
142 c->block_error.len = n_layers;
143 c->block_count.len = n_layers;
144
145 /*
146 * Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically
147 * changed when the stats become available.
148 */
149 for (i = 0; i < n_layers; i++) {
150 c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
151 c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
152 c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
153 c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
154 }
155 }
156
157 static inline int sms_to_mode(u32 mode)
158 {
159 switch (mode) {
160 case 2:
161 return TRANSMISSION_MODE_2K;
162 case 4:
163 return TRANSMISSION_MODE_4K;
164 case 8:
165 return TRANSMISSION_MODE_8K;
166 }
167 return TRANSMISSION_MODE_AUTO;
168 }
169
170 static inline int sms_to_isdbt_mode(u32 mode)
171 {
172 switch (mode) {
173 case 1:
174 return TRANSMISSION_MODE_2K;
175 case 2:
176 return TRANSMISSION_MODE_4K;
177 case 3:
178 return TRANSMISSION_MODE_8K;
179 }
180 return TRANSMISSION_MODE_AUTO;
181 }
182
183 static inline int sms_to_isdbt_guard_interval(u32 interval)
184 {
185 switch (interval) {
186 case 4:
187 return GUARD_INTERVAL_1_4;
188 case 8:
189 return GUARD_INTERVAL_1_8;
190 case 16:
191 return GUARD_INTERVAL_1_16;
192 case 32:
193 return GUARD_INTERVAL_1_32;
194 }
195 return GUARD_INTERVAL_AUTO;
196 }
197
198 static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked)
199 {
200 if (is_demod_locked)
201 return FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
202 FE_HAS_SYNC | FE_HAS_LOCK;
203
204 if (is_rf_locked)
205 return FE_HAS_SIGNAL | FE_HAS_CARRIER;
206
207 return 0;
208 }
209
210 static inline u32 sms_to_bw(u32 value)
211 {
212 return value * 1000000;
213 }
214
215 #define convert_from_table(value, table, defval) ({ \
216 u32 __ret; \
217 if (value < ARRAY_SIZE(table)) \
218 __ret = table[value]; \
219 else \
220 __ret = defval; \
221 __ret; \
222 })
223
224 #define sms_to_guard_interval(value) \
225 convert_from_table(value, sms_to_guard_interval_table, \
226 GUARD_INTERVAL_AUTO);
227
228 #define sms_to_code_rate(value) \
229 convert_from_table(value, sms_to_code_rate_table, \
230 FEC_NONE);
231
232 #define sms_to_hierarchy(value) \
233 convert_from_table(value, sms_to_hierarchy_table, \
234 FEC_NONE);
235
236 #define sms_to_modulation(value) \
237 convert_from_table(value, sms_to_modulation_table, \
238 FEC_NONE);
239
240 static void smsdvb_update_tx_params(struct smsdvb_client_t *client,
241 struct sms_tx_stats *p)
242 {
243 struct dvb_frontend *fe = &client->frontend;
244 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
245
246 c->frequency = p->frequency;
247 client->fe_status = sms_to_status(p->is_demod_locked, 0);
248 c->bandwidth_hz = sms_to_bw(p->bandwidth);
249 c->transmission_mode = sms_to_mode(p->transmission_mode);
250 c->guard_interval = sms_to_guard_interval(p->guard_interval);
251 c->code_rate_HP = sms_to_code_rate(p->code_rate);
252 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
253 c->hierarchy = sms_to_hierarchy(p->hierarchy);
254 c->modulation = sms_to_modulation(p->constellation);
255 }
256
257 static void smsdvb_update_per_slices(struct smsdvb_client_t *client,
258 struct RECEPTION_STATISTICS_PER_SLICES_S *p)
259 {
260 struct dvb_frontend *fe = &client->frontend;
261 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
262 u64 tmp;
263
264 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
265 c->modulation = sms_to_modulation(p->constellation);
266
267 /* signal Strength, in DBm */
268 c->strength.stat[0].uvalue = p->in_band_power * 1000;
269
270 /* Carrier to noise ratio, in DB */
271 c->cnr.stat[0].svalue = p->snr * 1000;
272
273 /* PER/BER requires demod lock */
274 if (!p->is_demod_locked)
275 return;
276
277 /* TS PER */
278 client->last_per = c->block_error.stat[0].uvalue;
279 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
280 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
281 c->block_error.stat[0].uvalue += p->ets_packets;
282 c->block_count.stat[0].uvalue += p->ets_packets + p->ts_packets;
283
284 /* ber */
285 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
286 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
287 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
288 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
289
290 /* Legacy PER/BER */
291 tmp = p->ets_packets * 65535ULL;
292 if (p->ts_packets + p->ets_packets)
293 do_div(tmp, p->ts_packets + p->ets_packets);
294 client->legacy_per = tmp;
295 }
296
297 static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client,
298 struct sms_stats *p)
299 {
300 struct dvb_frontend *fe = &client->frontend;
301 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
302
303 if (client->prt_dvb_stats)
304 client->prt_dvb_stats(client->debug_data, p);
305
306 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
307
308 /* Update DVB modulation parameters */
309 c->frequency = p->frequency;
310 client->fe_status = sms_to_status(p->is_demod_locked, 0);
311 c->bandwidth_hz = sms_to_bw(p->bandwidth);
312 c->transmission_mode = sms_to_mode(p->transmission_mode);
313 c->guard_interval = sms_to_guard_interval(p->guard_interval);
314 c->code_rate_HP = sms_to_code_rate(p->code_rate);
315 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
316 c->hierarchy = sms_to_hierarchy(p->hierarchy);
317 c->modulation = sms_to_modulation(p->constellation);
318
319 /* update reception data */
320 c->lna = p->is_external_lna_on ? 1 : 0;
321
322 /* Carrier to noise ratio, in DB */
323 c->cnr.stat[0].svalue = p->SNR * 1000;
324
325 /* signal Strength, in DBm */
326 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
327
328 /* PER/BER requires demod lock */
329 if (!p->is_demod_locked)
330 return;
331
332 /* TS PER */
333 client->last_per = c->block_error.stat[0].uvalue;
334 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
335 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
336 c->block_error.stat[0].uvalue += p->error_ts_packets;
337 c->block_count.stat[0].uvalue += p->total_ts_packets;
338
339 /* ber */
340 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
341 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
342 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
343 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
344
345 /* Legacy PER/BER */
346 client->legacy_ber = p->ber;
347 };
348
349 static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client,
350 struct sms_isdbt_stats *p)
351 {
352 struct dvb_frontend *fe = &client->frontend;
353 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
354 struct sms_isdbt_layer_stats *lr;
355 int i, n_layers;
356
357 if (client->prt_isdb_stats)
358 client->prt_isdb_stats(client->debug_data, p);
359
360 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
361
362 /*
363 * Firmware 2.1 seems to report only lock status and
364 * signal strength. The signal strength indicator is at the
365 * wrong field.
366 */
367 if (p->statistics_type == 0) {
368 c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000;
369 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
370 return;
371 }
372
373 /* Update ISDB-T transmission parameters */
374 c->frequency = p->frequency;
375 c->bandwidth_hz = sms_to_bw(p->bandwidth);
376 c->transmission_mode = sms_to_isdbt_mode(p->transmission_mode);
377 c->guard_interval = sms_to_isdbt_guard_interval(p->guard_interval);
378 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
379 n_layers = p->num_of_layers;
380 if (n_layers < 1)
381 n_layers = 1;
382 if (n_layers > 3)
383 n_layers = 3;
384 c->isdbt_layer_enabled = 0;
385
386 /* update reception data */
387 c->lna = p->is_external_lna_on ? 1 : 0;
388
389 /* Carrier to noise ratio, in DB */
390 c->cnr.stat[0].svalue = p->SNR * 1000;
391
392 /* signal Strength, in DBm */
393 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
394
395 /* PER/BER and per-layer stats require demod lock */
396 if (!p->is_demod_locked)
397 return;
398
399 client->last_per = c->block_error.stat[0].uvalue;
400
401 /* Clears global counters, as the code below will sum it again */
402 c->block_error.stat[0].uvalue = 0;
403 c->block_count.stat[0].uvalue = 0;
404 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
405 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
406 c->post_bit_error.stat[0].uvalue = 0;
407 c->post_bit_count.stat[0].uvalue = 0;
408 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
409 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
410
411 for (i = 0; i < n_layers; i++) {
412 lr = &p->layer_info[i];
413
414 /* Update per-layer transmission parameters */
415 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
416 c->isdbt_layer_enabled |= 1 << i;
417 c->layer[i].segment_count = lr->number_of_segments;
418 } else {
419 continue;
420 }
421 c->layer[i].modulation = sms_to_modulation(lr->constellation);
422 c->layer[i].fec = sms_to_code_rate(lr->code_rate);
423
424 /* Time interleaving */
425 c->layer[i].interleaving = (u8)lr->ti_ldepth_i;
426
427 /* TS PER */
428 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
429 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
430 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
431 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
432
433 /* Update global PER counter */
434 c->block_error.stat[0].uvalue += lr->error_ts_packets;
435 c->block_count.stat[0].uvalue += lr->total_ts_packets;
436
437 /* BER */
438 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
439 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
440 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
441 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
442
443 /* Update global BER counter */
444 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
445 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
446 }
447 }
448
449 static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client,
450 struct sms_isdbt_stats_ex *p)
451 {
452 struct dvb_frontend *fe = &client->frontend;
453 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
454 struct sms_isdbt_layer_stats *lr;
455 int i, n_layers;
456
457 if (client->prt_isdb_stats_ex)
458 client->prt_isdb_stats_ex(client->debug_data, p);
459
460 /* Update ISDB-T transmission parameters */
461 c->frequency = p->frequency;
462 client->fe_status = sms_to_status(p->is_demod_locked, 0);
463 c->bandwidth_hz = sms_to_bw(p->bandwidth);
464 c->transmission_mode = sms_to_isdbt_mode(p->transmission_mode);
465 c->guard_interval = sms_to_isdbt_guard_interval(p->guard_interval);
466 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
467 n_layers = p->num_of_layers;
468 if (n_layers < 1)
469 n_layers = 1;
470 if (n_layers > 3)
471 n_layers = 3;
472 c->isdbt_layer_enabled = 0;
473
474 /* update reception data */
475 c->lna = p->is_external_lna_on ? 1 : 0;
476
477 /* Carrier to noise ratio, in DB */
478 c->cnr.stat[0].svalue = p->SNR * 1000;
479
480 /* signal Strength, in DBm */
481 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
482
483 /* PER/BER and per-layer stats require demod lock */
484 if (!p->is_demod_locked)
485 return;
486
487 client->last_per = c->block_error.stat[0].uvalue;
488
489 /* Clears global counters, as the code below will sum it again */
490 c->block_error.stat[0].uvalue = 0;
491 c->block_count.stat[0].uvalue = 0;
492 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
493 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
494 c->post_bit_error.stat[0].uvalue = 0;
495 c->post_bit_count.stat[0].uvalue = 0;
496 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
497 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
498
499 c->post_bit_error.len = n_layers + 1;
500 c->post_bit_count.len = n_layers + 1;
501 c->block_error.len = n_layers + 1;
502 c->block_count.len = n_layers + 1;
503 for (i = 0; i < n_layers; i++) {
504 lr = &p->layer_info[i];
505
506 /* Update per-layer transmission parameters */
507 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
508 c->isdbt_layer_enabled |= 1 << i;
509 c->layer[i].segment_count = lr->number_of_segments;
510 } else {
511 continue;
512 }
513 c->layer[i].modulation = sms_to_modulation(lr->constellation);
514 c->layer[i].fec = sms_to_code_rate(lr->code_rate);
515
516 /* Time interleaving */
517 c->layer[i].interleaving = (u8)lr->ti_ldepth_i;
518
519 /* TS PER */
520 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
521 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
522 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
523 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
524
525 /* Update global PER counter */
526 c->block_error.stat[0].uvalue += lr->error_ts_packets;
527 c->block_count.stat[0].uvalue += lr->total_ts_packets;
528
529 /* ber */
530 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
531 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
532 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
533 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
534
535 /* Update global ber counter */
536 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
537 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
538 }
539 }
540
541 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
542 {
543 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
544 struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) (((u8 *) cb->p)
545 + cb->offset);
546 void *p = phdr + 1;
547 struct dvb_frontend *fe = &client->frontend;
548 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
549 bool is_status_update = false;
550
551 switch (phdr->msg_type) {
552 case MSG_SMS_DVBT_BDA_DATA:
553 /*
554 * Only feed data to dvb demux if are there any feed listening
555 * to it and if the device has tuned
556 */
557 if (client->feed_users && client->has_tuned)
558 dvb_dmx_swfilter(&client->demux, p,
559 cb->size - sizeof(struct sms_msg_hdr));
560 break;
561
562 case MSG_SMS_RF_TUNE_RES:
563 case MSG_SMS_ISDBT_TUNE_RES:
564 complete(&client->tune_done);
565 break;
566
567 case MSG_SMS_SIGNAL_DETECTED_IND:
568 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
569 FE_HAS_VITERBI | FE_HAS_SYNC |
570 FE_HAS_LOCK;
571
572 is_status_update = true;
573 break;
574
575 case MSG_SMS_NO_SIGNAL_IND:
576 client->fe_status = 0;
577
578 is_status_update = true;
579 break;
580
581 case MSG_SMS_TRANSMISSION_IND:
582 smsdvb_update_tx_params(client, p);
583
584 is_status_update = true;
585 break;
586
587 case MSG_SMS_HO_PER_SLICES_IND:
588 smsdvb_update_per_slices(client, p);
589
590 is_status_update = true;
591 break;
592
593 case MSG_SMS_GET_STATISTICS_RES:
594 switch (smscore_get_device_mode(client->coredev)) {
595 case DEVICE_MODE_ISDBT:
596 case DEVICE_MODE_ISDBT_BDA:
597 smsdvb_update_isdbt_stats(client, p);
598 break;
599 default:
600 /* Skip sms_msg_statistics_info:request_result field */
601 smsdvb_update_dvb_stats(client, p + sizeof(u32));
602 }
603
604 is_status_update = true;
605 break;
606
607 /* Only for ISDB-T */
608 case MSG_SMS_GET_STATISTICS_EX_RES:
609 /* Skip sms_msg_statistics_info:request_result field? */
610 smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32));
611 is_status_update = true;
612 break;
613 default:
614 pr_debug("message not handled\n");
615 }
616 smscore_putbuffer(client->coredev, cb);
617
618 if (is_status_update) {
619 if (client->fe_status & FE_HAS_LOCK) {
620 sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
621 if (client->last_per == c->block_error.stat[0].uvalue)
622 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
623 else
624 sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR);
625 client->has_tuned = true;
626 } else {
627 smsdvb_stats_not_ready(fe);
628 client->has_tuned = false;
629 sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
630 }
631 complete(&client->stats_done);
632 }
633
634 return 0;
635 }
636
637 static void smsdvb_media_device_unregister(struct smsdvb_client_t *client)
638 {
639 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
640 struct smscore_device_t *coredev = client->coredev;
641
642 if (!coredev->media_dev)
643 return;
644 media_device_unregister(coredev->media_dev);
645 media_device_cleanup(coredev->media_dev);
646 kfree(coredev->media_dev);
647 coredev->media_dev = NULL;
648 #endif
649 }
650
651 static void smsdvb_unregister_client(struct smsdvb_client_t *client)
652 {
653 /* must be called under clientslock */
654
655 list_del(&client->entry);
656
657 smsdvb_debugfs_release(client);
658 smscore_unregister_client(client->smsclient);
659 dvb_unregister_frontend(&client->frontend);
660 dvb_dmxdev_release(&client->dmxdev);
661 dvb_dmx_release(&client->demux);
662 smsdvb_media_device_unregister(client);
663 dvb_unregister_adapter(&client->adapter);
664 kfree(client);
665 }
666
667 static void smsdvb_onremove(void *context)
668 {
669 mutex_lock(&g_smsdvb_clientslock);
670
671 smsdvb_unregister_client((struct smsdvb_client_t *) context);
672
673 mutex_unlock(&g_smsdvb_clientslock);
674 }
675
676 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
677 {
678 struct smsdvb_client_t *client =
679 container_of(feed->demux, struct smsdvb_client_t, demux);
680 struct sms_msg_data pid_msg;
681
682 pr_debug("add pid %d(%x)\n",
683 feed->pid, feed->pid);
684
685 client->feed_users++;
686
687 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
688 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
689 pid_msg.x_msg_header.msg_flags = 0;
690 pid_msg.x_msg_header.msg_type = MSG_SMS_ADD_PID_FILTER_REQ;
691 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
692 pid_msg.msg_data = feed->pid;
693
694 return smsclient_sendrequest(client->smsclient,
695 &pid_msg, sizeof(pid_msg));
696 }
697
698 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
699 {
700 struct smsdvb_client_t *client =
701 container_of(feed->demux, struct smsdvb_client_t, demux);
702 struct sms_msg_data pid_msg;
703
704 pr_debug("remove pid %d(%x)\n",
705 feed->pid, feed->pid);
706
707 client->feed_users--;
708
709 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
710 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
711 pid_msg.x_msg_header.msg_flags = 0;
712 pid_msg.x_msg_header.msg_type = MSG_SMS_REMOVE_PID_FILTER_REQ;
713 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
714 pid_msg.msg_data = feed->pid;
715
716 return smsclient_sendrequest(client->smsclient,
717 &pid_msg, sizeof(pid_msg));
718 }
719
720 static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
721 void *buffer, size_t size,
722 struct completion *completion)
723 {
724 int rc;
725
726 rc = smsclient_sendrequest(client->smsclient, buffer, size);
727 if (rc < 0)
728 return rc;
729
730 return wait_for_completion_timeout(completion,
731 msecs_to_jiffies(2000)) ?
732 0 : -ETIME;
733 }
734
735 static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
736 {
737 int rc;
738 struct sms_msg_hdr msg;
739
740 /* Don't request stats too fast */
741 if (client->get_stats_jiffies &&
742 (!time_after(jiffies, client->get_stats_jiffies)))
743 return 0;
744 client->get_stats_jiffies = jiffies + msecs_to_jiffies(100);
745
746 msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
747 msg.msg_dst_id = HIF_TASK;
748 msg.msg_flags = 0;
749 msg.msg_length = sizeof(msg);
750
751 switch (smscore_get_device_mode(client->coredev)) {
752 case DEVICE_MODE_ISDBT:
753 case DEVICE_MODE_ISDBT_BDA:
754 /*
755 * Check for firmware version, to avoid breaking for old cards
756 */
757 if (client->coredev->fw_version >= 0x800)
758 msg.msg_type = MSG_SMS_GET_STATISTICS_EX_REQ;
759 else
760 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
761 break;
762 default:
763 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
764 }
765
766 rc = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
767 &client->stats_done);
768
769 return rc;
770 }
771
772 static inline int led_feedback(struct smsdvb_client_t *client)
773 {
774 if (!(client->fe_status & FE_HAS_LOCK))
775 return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
776
777 return sms_board_led_feedback(client->coredev,
778 (client->legacy_ber == 0) ?
779 SMS_LED_HI : SMS_LED_LO);
780 }
781
782 static int smsdvb_read_status(struct dvb_frontend *fe, enum fe_status *stat)
783 {
784 int rc;
785 struct smsdvb_client_t *client;
786 client = container_of(fe, struct smsdvb_client_t, frontend);
787
788 rc = smsdvb_send_statistics_request(client);
789
790 *stat = client->fe_status;
791
792 led_feedback(client);
793
794 return rc;
795 }
796
797 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
798 {
799 int rc;
800 struct smsdvb_client_t *client;
801
802 client = container_of(fe, struct smsdvb_client_t, frontend);
803
804 rc = smsdvb_send_statistics_request(client);
805
806 *ber = client->legacy_ber;
807
808 led_feedback(client);
809
810 return rc;
811 }
812
813 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
814 {
815 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
816 int rc;
817 s32 power = (s32) c->strength.stat[0].uvalue;
818 struct smsdvb_client_t *client;
819
820 client = container_of(fe, struct smsdvb_client_t, frontend);
821
822 rc = smsdvb_send_statistics_request(client);
823
824 if (power < -95)
825 *strength = 0;
826 else if (power > -29)
827 *strength = 65535;
828 else
829 *strength = (power + 95) * 65535 / 66;
830
831 led_feedback(client);
832
833 return rc;
834 }
835
836 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
837 {
838 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
839 int rc;
840 struct smsdvb_client_t *client;
841
842 client = container_of(fe, struct smsdvb_client_t, frontend);
843
844 rc = smsdvb_send_statistics_request(client);
845
846 /* Preferred scale for SNR with legacy API: 0.1 dB */
847 *snr = ((u32)c->cnr.stat[0].svalue) / 100;
848
849 led_feedback(client);
850
851 return rc;
852 }
853
854 static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
855 {
856 int rc;
857 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
858 struct smsdvb_client_t *client;
859
860 client = container_of(fe, struct smsdvb_client_t, frontend);
861
862 rc = smsdvb_send_statistics_request(client);
863
864 *ucblocks = c->block_error.stat[0].uvalue;
865
866 led_feedback(client);
867
868 return rc;
869 }
870
871 static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
872 struct dvb_frontend_tune_settings *tune)
873 {
874 pr_debug("\n");
875
876 tune->min_delay_ms = 400;
877 tune->step_size = 250000;
878 tune->max_drift = 0;
879 return 0;
880 }
881
882 static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe)
883 {
884 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
885 struct smsdvb_client_t *client =
886 container_of(fe, struct smsdvb_client_t, frontend);
887
888 struct {
889 struct sms_msg_hdr msg;
890 u32 Data[3];
891 } msg;
892
893 int ret;
894
895 client->fe_status = 0;
896 client->event_fe_state = -1;
897 client->event_unc_state = -1;
898 fe->dtv_property_cache.delivery_system = SYS_DVBT;
899
900 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
901 msg.msg.msg_dst_id = HIF_TASK;
902 msg.msg.msg_flags = 0;
903 msg.msg.msg_type = MSG_SMS_RF_TUNE_REQ;
904 msg.msg.msg_length = sizeof(msg);
905 msg.Data[0] = c->frequency;
906 msg.Data[2] = 12000000;
907
908 pr_debug("%s: freq %d band %d\n", __func__, c->frequency,
909 c->bandwidth_hz);
910
911 switch (c->bandwidth_hz / 1000000) {
912 case 8:
913 msg.Data[1] = BW_8_MHZ;
914 break;
915 case 7:
916 msg.Data[1] = BW_7_MHZ;
917 break;
918 case 6:
919 msg.Data[1] = BW_6_MHZ;
920 break;
921 case 0:
922 return -EOPNOTSUPP;
923 default:
924 return -EINVAL;
925 }
926 /* Disable LNA, if any. An error is returned if no LNA is present */
927 ret = sms_board_lna_control(client->coredev, 0);
928 if (ret == 0) {
929 enum fe_status status;
930
931 /* tune with LNA off at first */
932 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
933 &client->tune_done);
934
935 smsdvb_read_status(fe, &status);
936
937 if (status & FE_HAS_LOCK)
938 return ret;
939
940 /* previous tune didn't lock - enable LNA and tune again */
941 sms_board_lna_control(client->coredev, 1);
942 }
943
944 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
945 &client->tune_done);
946 }
947
948 static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
949 {
950 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
951 struct smsdvb_client_t *client =
952 container_of(fe, struct smsdvb_client_t, frontend);
953 int board_id = smscore_get_board_id(client->coredev);
954 struct sms_board *board = sms_get_board(board_id);
955 enum sms_device_type_st type = board->type;
956 int ret;
957
958 struct {
959 struct sms_msg_hdr msg;
960 u32 Data[4];
961 } msg;
962
963 fe->dtv_property_cache.delivery_system = SYS_ISDBT;
964
965 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
966 msg.msg.msg_dst_id = HIF_TASK;
967 msg.msg.msg_flags = 0;
968 msg.msg.msg_type = MSG_SMS_ISDBT_TUNE_REQ;
969 msg.msg.msg_length = sizeof(msg);
970
971 if (c->isdbt_sb_segment_idx == -1)
972 c->isdbt_sb_segment_idx = 0;
973
974 if (!c->isdbt_layer_enabled)
975 c->isdbt_layer_enabled = 7;
976
977 msg.Data[0] = c->frequency;
978 msg.Data[1] = BW_ISDBT_1SEG;
979 msg.Data[2] = 12000000;
980 msg.Data[3] = c->isdbt_sb_segment_idx;
981
982 if (c->isdbt_partial_reception) {
983 if ((type == SMS_PELE || type == SMS_RIO) &&
984 c->isdbt_sb_segment_count > 3)
985 msg.Data[1] = BW_ISDBT_13SEG;
986 else if (c->isdbt_sb_segment_count > 1)
987 msg.Data[1] = BW_ISDBT_3SEG;
988 } else if (type == SMS_PELE || type == SMS_RIO)
989 msg.Data[1] = BW_ISDBT_13SEG;
990
991 c->bandwidth_hz = 6000000;
992
993 pr_debug("freq %d segwidth %d segindex %d\n",
994 c->frequency, c->isdbt_sb_segment_count,
995 c->isdbt_sb_segment_idx);
996
997 /* Disable LNA, if any. An error is returned if no LNA is present */
998 ret = sms_board_lna_control(client->coredev, 0);
999 if (ret == 0) {
1000 enum fe_status status;
1001
1002 /* tune with LNA off at first */
1003 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
1004 &client->tune_done);
1005
1006 smsdvb_read_status(fe, &status);
1007
1008 if (status & FE_HAS_LOCK)
1009 return ret;
1010
1011 /* previous tune didn't lock - enable LNA and tune again */
1012 sms_board_lna_control(client->coredev, 1);
1013 }
1014 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
1015 &client->tune_done);
1016 }
1017
1018 static int smsdvb_set_frontend(struct dvb_frontend *fe)
1019 {
1020 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
1021 struct smsdvb_client_t *client =
1022 container_of(fe, struct smsdvb_client_t, frontend);
1023 struct smscore_device_t *coredev = client->coredev;
1024
1025 smsdvb_stats_not_ready(fe);
1026 c->strength.stat[0].uvalue = 0;
1027 c->cnr.stat[0].uvalue = 0;
1028
1029 client->has_tuned = false;
1030
1031 switch (smscore_get_device_mode(coredev)) {
1032 case DEVICE_MODE_DVBT:
1033 case DEVICE_MODE_DVBT_BDA:
1034 return smsdvb_dvbt_set_frontend(fe);
1035 case DEVICE_MODE_ISDBT:
1036 case DEVICE_MODE_ISDBT_BDA:
1037 return smsdvb_isdbt_set_frontend(fe);
1038 default:
1039 return -EINVAL;
1040 }
1041 }
1042
1043 static int smsdvb_init(struct dvb_frontend *fe)
1044 {
1045 struct smsdvb_client_t *client =
1046 container_of(fe, struct smsdvb_client_t, frontend);
1047
1048 sms_board_power(client->coredev, 1);
1049
1050 sms_board_dvb3_event(client, DVB3_EVENT_INIT);
1051 return 0;
1052 }
1053
1054 static int smsdvb_sleep(struct dvb_frontend *fe)
1055 {
1056 struct smsdvb_client_t *client =
1057 container_of(fe, struct smsdvb_client_t, frontend);
1058
1059 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
1060 sms_board_power(client->coredev, 0);
1061
1062 sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
1063
1064 return 0;
1065 }
1066
1067 static void smsdvb_release(struct dvb_frontend *fe)
1068 {
1069 /* do nothing */
1070 }
1071
1072 static const struct dvb_frontend_ops smsdvb_fe_ops = {
1073 .info = {
1074 .name = "Siano Mobile Digital MDTV Receiver",
1075 .frequency_min_hz = 44250 * kHz,
1076 .frequency_max_hz = 867250 * kHz,
1077 .frequency_stepsize_hz = 250 * kHz,
1078 .caps = FE_CAN_INVERSION_AUTO |
1079 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1080 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1081 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1082 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1083 FE_CAN_GUARD_INTERVAL_AUTO |
1084 FE_CAN_RECOVER |
1085 FE_CAN_HIERARCHY_AUTO,
1086 },
1087
1088 .release = smsdvb_release,
1089
1090 .set_frontend = smsdvb_set_frontend,
1091 .get_tune_settings = smsdvb_get_tune_settings,
1092
1093 .read_status = smsdvb_read_status,
1094 .read_ber = smsdvb_read_ber,
1095 .read_signal_strength = smsdvb_read_signal_strength,
1096 .read_snr = smsdvb_read_snr,
1097 .read_ucblocks = smsdvb_read_ucblocks,
1098
1099 .init = smsdvb_init,
1100 .sleep = smsdvb_sleep,
1101 };
1102
1103 static int smsdvb_hotplug(struct smscore_device_t *coredev,
1104 struct device *device, int arrival)
1105 {
1106 struct smsclient_params_t params;
1107 struct smsdvb_client_t *client;
1108 int rc;
1109
1110 /* device removal handled by onremove callback */
1111 if (!arrival)
1112 return 0;
1113 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
1114 if (!client)
1115 return -ENOMEM;
1116
1117 /* register dvb adapter */
1118 rc = dvb_register_adapter(&client->adapter,
1119 sms_get_board(
1120 smscore_get_board_id(coredev))->name,
1121 THIS_MODULE, device, adapter_nr);
1122 if (rc < 0) {
1123 pr_err("dvb_register_adapter() failed %d\n", rc);
1124 goto adapter_error;
1125 }
1126 dvb_register_media_controller(&client->adapter, coredev->media_dev);
1127
1128 /* init dvb demux */
1129 client->demux.dmx.capabilities = DMX_TS_FILTERING;
1130 client->demux.filternum = 32; /* todo: nova ??? */
1131 client->demux.feednum = 32;
1132 client->demux.start_feed = smsdvb_start_feed;
1133 client->demux.stop_feed = smsdvb_stop_feed;
1134
1135 rc = dvb_dmx_init(&client->demux);
1136 if (rc < 0) {
1137 pr_err("dvb_dmx_init failed %d\n", rc);
1138 goto dvbdmx_error;
1139 }
1140
1141 /* init dmxdev */
1142 client->dmxdev.filternum = 32;
1143 client->dmxdev.demux = &client->demux.dmx;
1144 client->dmxdev.capabilities = 0;
1145
1146 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
1147 if (rc < 0) {
1148 pr_err("dvb_dmxdev_init failed %d\n", rc);
1149 goto dmxdev_error;
1150 }
1151
1152 /* init and register frontend */
1153 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
1154 sizeof(struct dvb_frontend_ops));
1155
1156 switch (smscore_get_device_mode(coredev)) {
1157 case DEVICE_MODE_DVBT:
1158 case DEVICE_MODE_DVBT_BDA:
1159 client->frontend.ops.delsys[0] = SYS_DVBT;
1160 break;
1161 case DEVICE_MODE_ISDBT:
1162 case DEVICE_MODE_ISDBT_BDA:
1163 client->frontend.ops.delsys[0] = SYS_ISDBT;
1164 break;
1165 }
1166
1167 rc = dvb_register_frontend(&client->adapter, &client->frontend);
1168 if (rc < 0) {
1169 pr_err("frontend registration failed %d\n", rc);
1170 goto frontend_error;
1171 }
1172
1173 params.initial_id = 1;
1174 params.data_type = MSG_SMS_DVBT_BDA_DATA;
1175 params.onresponse_handler = smsdvb_onresponse;
1176 params.onremove_handler = smsdvb_onremove;
1177 params.context = client;
1178
1179 rc = smscore_register_client(coredev, &params, &client->smsclient);
1180 if (rc < 0) {
1181 pr_err("smscore_register_client() failed %d\n", rc);
1182 goto client_error;
1183 }
1184
1185 client->coredev = coredev;
1186
1187 init_completion(&client->tune_done);
1188 init_completion(&client->stats_done);
1189
1190 mutex_lock(&g_smsdvb_clientslock);
1191
1192 list_add(&client->entry, &g_smsdvb_clients);
1193
1194 mutex_unlock(&g_smsdvb_clientslock);
1195
1196 client->event_fe_state = -1;
1197 client->event_unc_state = -1;
1198 sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
1199
1200 sms_board_setup(coredev);
1201
1202 if (smsdvb_debugfs_create(client) < 0)
1203 pr_info("failed to create debugfs node\n");
1204
1205 rc = dvb_create_media_graph(&client->adapter, true);
1206 if (rc < 0) {
1207 pr_err("dvb_create_media_graph failed %d\n", rc);
1208 goto media_graph_error;
1209 }
1210
1211 pr_info("DVB interface registered.\n");
1212 return 0;
1213
1214 media_graph_error:
1215 mutex_lock(&g_smsdvb_clientslock);
1216 list_del(&client->entry);
1217 mutex_unlock(&g_smsdvb_clientslock);
1218
1219 smsdvb_debugfs_release(client);
1220
1221 client_error:
1222 dvb_unregister_frontend(&client->frontend);
1223
1224 frontend_error:
1225 dvb_dmxdev_release(&client->dmxdev);
1226
1227 dmxdev_error:
1228 dvb_dmx_release(&client->demux);
1229
1230 dvbdmx_error:
1231 smsdvb_media_device_unregister(client);
1232 dvb_unregister_adapter(&client->adapter);
1233
1234 adapter_error:
1235 kfree(client);
1236 return rc;
1237 }
1238
1239 static int __init smsdvb_module_init(void)
1240 {
1241 int rc;
1242
1243 smsdvb_debugfs_register();
1244
1245 rc = smscore_register_hotplug(smsdvb_hotplug);
1246
1247 pr_debug("\n");
1248
1249 return rc;
1250 }
1251
1252 static void __exit smsdvb_module_exit(void)
1253 {
1254 smscore_unregister_hotplug(smsdvb_hotplug);
1255
1256 mutex_lock(&g_smsdvb_clientslock);
1257
1258 while (!list_empty(&g_smsdvb_clients))
1259 smsdvb_unregister_client((struct smsdvb_client_t *)g_smsdvb_clients.next);
1260
1261 smsdvb_debugfs_unregister();
1262
1263 mutex_unlock(&g_smsdvb_clientslock);
1264 }
1265
1266 module_init(smsdvb_module_init);
1267 module_exit(smsdvb_module_exit);
1268
1269 MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
1270 MODULE_AUTHOR("Siano Mobile Silicon, Inc. <uris@siano-ms.com>");
1271 MODULE_LICENSE("GPL");
Kernel DRM miscellaneous fixes and cross-tree changes