?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Linux 3.11-rc3
[cris-mirror.git] / drivers / media / common / siano / smsdvb-main.c
blob086262252230b98475eed8f6e0422e51e16b99e0
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 do_div(tmp, p->ts_packets + p->ets_packets);
280 client->legacy_per = tmp;
281 }
282
283 static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client,
284 struct sms_stats *p)
285 {
286 struct dvb_frontend *fe = &client->frontend;
287 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
288
289 if (client->prt_dvb_stats)
290 client->prt_dvb_stats(client->debug_data, p);
291
292 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
293
294 /* Update DVB modulation parameters */
295 c->frequency = p->frequency;
296 client->fe_status = sms_to_status(p->is_demod_locked, 0);
297 c->bandwidth_hz = sms_to_bw(p->bandwidth);
298 c->transmission_mode = sms_to_mode(p->transmission_mode);
299 c->guard_interval = sms_to_guard_interval(p->guard_interval);
300 c->code_rate_HP = sms_to_code_rate(p->code_rate);
301 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
302 c->hierarchy = sms_to_hierarchy(p->hierarchy);
303 c->modulation = sms_to_modulation(p->constellation);
304
305 /* update reception data */
306 c->lna = p->is_external_lna_on ? 1 : 0;
307
308 /* Carrier to noise ratio, in DB */
309 c->cnr.stat[0].svalue = p->SNR * 1000;
310
311 /* signal Strength, in DBm */
312 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
313
314 /* PER/BER requires demod lock */
315 if (!p->is_demod_locked)
316 return;
317
318 /* TS PER */
319 client->last_per = c->block_error.stat[0].uvalue;
320 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
321 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
322 c->block_error.stat[0].uvalue += p->error_ts_packets;
323 c->block_count.stat[0].uvalue += p->total_ts_packets;
324
325 /* ber */
326 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
327 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
328 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
329 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
330
331 /* Legacy PER/BER */
332 client->legacy_ber = p->ber;
333 };
334
335 static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client,
336 struct sms_isdbt_stats *p)
337 {
338 struct dvb_frontend *fe = &client->frontend;
339 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
340 struct sms_isdbt_layer_stats *lr;
341 int i, n_layers;
342
343 if (client->prt_isdb_stats)
344 client->prt_isdb_stats(client->debug_data, p);
345
346 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
347
348 /*
349 * Firmware 2.1 seems to report only lock status and
350 * signal strength. The signal strength indicator is at the
351 * wrong field.
352 */
353 if (p->statistics_type == 0) {
354 c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000;
355 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
356 return;
357 }
358
359 /* Update ISDB-T transmission parameters */
360 c->frequency = p->frequency;
361 c->bandwidth_hz = sms_to_bw(p->bandwidth);
362 c->transmission_mode = sms_to_mode(p->transmission_mode);
363 c->guard_interval = sms_to_guard_interval(p->guard_interval);
364 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
365 n_layers = p->num_of_layers;
366 if (n_layers < 1)
367 n_layers = 1;
368 if (n_layers > 3)
369 n_layers = 3;
370 c->isdbt_layer_enabled = 0;
371
372 /* update reception data */
373 c->lna = p->is_external_lna_on ? 1 : 0;
374
375 /* Carrier to noise ratio, in DB */
376 c->cnr.stat[0].svalue = p->SNR * 1000;
377
378 /* signal Strength, in DBm */
379 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
380
381 /* PER/BER and per-layer stats require demod lock */
382 if (!p->is_demod_locked)
383 return;
384
385 client->last_per = c->block_error.stat[0].uvalue;
386
387 /* Clears global counters, as the code below will sum it again */
388 c->block_error.stat[0].uvalue = 0;
389 c->block_count.stat[0].uvalue = 0;
390 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
391 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
392 c->post_bit_error.stat[0].uvalue = 0;
393 c->post_bit_count.stat[0].uvalue = 0;
394 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
395 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
396
397 for (i = 0; i < n_layers; i++) {
398 lr = &p->layer_info[i];
399
400 /* Update per-layer transmission parameters */
401 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
402 c->isdbt_layer_enabled |= 1 << i;
403 c->layer[i].segment_count = lr->number_of_segments;
404 } else {
405 continue;
406 }
407 c->layer[i].modulation = sms_to_modulation(lr->constellation);
408
409 /* TS PER */
410 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
411 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
412 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
413 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
414
415 /* Update global PER counter */
416 c->block_error.stat[0].uvalue += lr->error_ts_packets;
417 c->block_count.stat[0].uvalue += lr->total_ts_packets;
418
419 /* BER */
420 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
421 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
422 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
423 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
424
425 /* Update global BER counter */
426 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
427 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
428 }
429 }
430
431 static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client,
432 struct sms_isdbt_stats_ex *p)
433 {
434 struct dvb_frontend *fe = &client->frontend;
435 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
436 struct sms_isdbt_layer_stats *lr;
437 int i, n_layers;
438
439 if (client->prt_isdb_stats_ex)
440 client->prt_isdb_stats_ex(client->debug_data, p);
441
442 /* Update ISDB-T transmission parameters */
443 c->frequency = p->frequency;
444 client->fe_status = sms_to_status(p->is_demod_locked, 0);
445 c->bandwidth_hz = sms_to_bw(p->bandwidth);
446 c->transmission_mode = sms_to_mode(p->transmission_mode);
447 c->guard_interval = sms_to_guard_interval(p->guard_interval);
448 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
449 n_layers = p->num_of_layers;
450 if (n_layers < 1)
451 n_layers = 1;
452 if (n_layers > 3)
453 n_layers = 3;
454 c->isdbt_layer_enabled = 0;
455
456 /* update reception data */
457 c->lna = p->is_external_lna_on ? 1 : 0;
458
459 /* Carrier to noise ratio, in DB */
460 c->cnr.stat[0].svalue = p->SNR * 1000;
461
462 /* signal Strength, in DBm */
463 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
464
465 /* PER/BER and per-layer stats require demod lock */
466 if (!p->is_demod_locked)
467 return;
468
469 client->last_per = c->block_error.stat[0].uvalue;
470
471 /* Clears global counters, as the code below will sum it again */
472 c->block_error.stat[0].uvalue = 0;
473 c->block_count.stat[0].uvalue = 0;
474 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
475 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
476 c->post_bit_error.stat[0].uvalue = 0;
477 c->post_bit_count.stat[0].uvalue = 0;
478 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
479 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
480
481 c->post_bit_error.len = n_layers + 1;
482 c->post_bit_count.len = n_layers + 1;
483 c->block_error.len = n_layers + 1;
484 c->block_count.len = n_layers + 1;
485 for (i = 0; i < n_layers; i++) {
486 lr = &p->layer_info[i];
487
488 /* Update per-layer transmission parameters */
489 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
490 c->isdbt_layer_enabled |= 1 << i;
491 c->layer[i].segment_count = lr->number_of_segments;
492 } else {
493 continue;
494 }
495 c->layer[i].modulation = sms_to_modulation(lr->constellation);
496
497 /* TS PER */
498 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
499 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
500 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
501 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
502
503 /* Update global PER counter */
504 c->block_error.stat[0].uvalue += lr->error_ts_packets;
505 c->block_count.stat[0].uvalue += lr->total_ts_packets;
506
507 /* ber */
508 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
509 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
510 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
511 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
512
513 /* Update global ber counter */
514 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
515 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
516 }
517 }
518
519 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
520 {
521 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
522 struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) (((u8 *) cb->p)
523 + cb->offset);
524 void *p = phdr + 1;
525 struct dvb_frontend *fe = &client->frontend;
526 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
527 bool is_status_update = false;
528
529 switch (phdr->msg_type) {
530 case MSG_SMS_DVBT_BDA_DATA:
531 /*
532 * Only feed data to dvb demux if are there any feed listening
533 * to it and if the device has tuned
534 */
535 if (client->feed_users && client->has_tuned)
536 dvb_dmx_swfilter(&client->demux, p,
537 cb->size - sizeof(struct sms_msg_hdr));
538 break;
539
540 case MSG_SMS_RF_TUNE_RES:
541 case MSG_SMS_ISDBT_TUNE_RES:
542 complete(&client->tune_done);
543 break;
544
545 case MSG_SMS_SIGNAL_DETECTED_IND:
546 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
547 FE_HAS_VITERBI | FE_HAS_SYNC |
548 FE_HAS_LOCK;
549
550 is_status_update = true;
551 break;
552
553 case MSG_SMS_NO_SIGNAL_IND:
554 client->fe_status = 0;
555
556 is_status_update = true;
557 break;
558
559 case MSG_SMS_TRANSMISSION_IND:
560 smsdvb_update_tx_params(client, p);
561
562 is_status_update = true;
563 break;
564
565 case MSG_SMS_HO_PER_SLICES_IND:
566 smsdvb_update_per_slices(client, p);
567
568 is_status_update = true;
569 break;
570
571 case MSG_SMS_GET_STATISTICS_RES:
572 switch (smscore_get_device_mode(client->coredev)) {
573 case DEVICE_MODE_ISDBT:
574 case DEVICE_MODE_ISDBT_BDA:
575 smsdvb_update_isdbt_stats(client, p);
576 break;
577 default:
578 /* Skip sms_msg_statistics_info:request_result field */
579 smsdvb_update_dvb_stats(client, p + sizeof(u32));
580 }
581
582 is_status_update = true;
583 break;
584
585 /* Only for ISDB-T */
586 case MSG_SMS_GET_STATISTICS_EX_RES:
587 /* Skip sms_msg_statistics_info:request_result field? */
588 smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32));
589 is_status_update = true;
590 break;
591 default:
592 sms_info("message not handled");
593 }
594 smscore_putbuffer(client->coredev, cb);
595
596 if (is_status_update) {
597 if (client->fe_status & FE_HAS_LOCK) {
598 sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
599 if (client->last_per == c->block_error.stat[0].uvalue)
600 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
601 else
602 sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR);
603 client->has_tuned = true;
604 } else {
605 smsdvb_stats_not_ready(fe);
606 client->has_tuned = false;
607 sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
608 }
609 complete(&client->stats_done);
610 }
611
612 return 0;
613 }
614
615 static void smsdvb_unregister_client(struct smsdvb_client_t *client)
616 {
617 /* must be called under clientslock */
618
619 list_del(&client->entry);
620
621 smsdvb_debugfs_release(client);
622 smscore_unregister_client(client->smsclient);
623 dvb_unregister_frontend(&client->frontend);
624 dvb_dmxdev_release(&client->dmxdev);
625 dvb_dmx_release(&client->demux);
626 dvb_unregister_adapter(&client->adapter);
627 kfree(client);
628 }
629
630 static void smsdvb_onremove(void *context)
631 {
632 kmutex_lock(&g_smsdvb_clientslock);
633
634 smsdvb_unregister_client((struct smsdvb_client_t *) context);
635
636 kmutex_unlock(&g_smsdvb_clientslock);
637 }
638
639 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
640 {
641 struct smsdvb_client_t *client =
642 container_of(feed->demux, struct smsdvb_client_t, demux);
643 struct sms_msg_data pid_msg;
644
645 sms_debug("add pid %d(%x)",
646 feed->pid, feed->pid);
647
648 client->feed_users++;
649
650 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
651 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
652 pid_msg.x_msg_header.msg_flags = 0;
653 pid_msg.x_msg_header.msg_type = MSG_SMS_ADD_PID_FILTER_REQ;
654 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
655 pid_msg.msg_data[0] = feed->pid;
656
657 return smsclient_sendrequest(client->smsclient,
658 &pid_msg, sizeof(pid_msg));
659 }
660
661 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
662 {
663 struct smsdvb_client_t *client =
664 container_of(feed->demux, struct smsdvb_client_t, demux);
665 struct sms_msg_data pid_msg;
666
667 sms_debug("remove pid %d(%x)",
668 feed->pid, feed->pid);
669
670 client->feed_users--;
671
672 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
673 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
674 pid_msg.x_msg_header.msg_flags = 0;
675 pid_msg.x_msg_header.msg_type = MSG_SMS_REMOVE_PID_FILTER_REQ;
676 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
677 pid_msg.msg_data[0] = feed->pid;
678
679 return smsclient_sendrequest(client->smsclient,
680 &pid_msg, sizeof(pid_msg));
681 }
682
683 static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
684 void *buffer, size_t size,
685 struct completion *completion)
686 {
687 int rc;
688
689 rc = smsclient_sendrequest(client->smsclient, buffer, size);
690 if (rc < 0)
691 return rc;
692
693 return wait_for_completion_timeout(completion,
694 msecs_to_jiffies(2000)) ?
695 0 : -ETIME;
696 }
697
698 static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
699 {
700 int rc;
701 struct sms_msg_hdr msg;
702
703 /* Don't request stats too fast */
704 if (client->get_stats_jiffies &&
705 (!time_after(jiffies, client->get_stats_jiffies)))
706 return 0;
707 client->get_stats_jiffies = jiffies + msecs_to_jiffies(100);
708
709 msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
710 msg.msg_dst_id = HIF_TASK;
711 msg.msg_flags = 0;
712 msg.msg_length = sizeof(msg);
713
714 switch (smscore_get_device_mode(client->coredev)) {
715 case DEVICE_MODE_ISDBT:
716 case DEVICE_MODE_ISDBT_BDA:
717 /*
718 * Check for firmware version, to avoid breaking for old cards
719 */
720 if (client->coredev->fw_version >= 0x800)
721 msg.msg_type = MSG_SMS_GET_STATISTICS_EX_REQ;
722 else
723 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
724 break;
725 default:
726 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
727 }
728
729 rc = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
730 &client->stats_done);
731
732 return rc;
733 }
734
735 static inline int led_feedback(struct smsdvb_client_t *client)
736 {
737 if (!(client->fe_status & FE_HAS_LOCK))
738 return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
739
740 return sms_board_led_feedback(client->coredev,
741 (client->legacy_ber == 0) ?
742 SMS_LED_HI : SMS_LED_LO);
743 }
744
745 static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
746 {
747 int rc;
748 struct smsdvb_client_t *client;
749 client = container_of(fe, struct smsdvb_client_t, frontend);
750
751 rc = smsdvb_send_statistics_request(client);
752
753 *stat = client->fe_status;
754
755 led_feedback(client);
756
757 return rc;
758 }
759
760 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
761 {
762 int rc;
763 struct smsdvb_client_t *client;
764
765 client = container_of(fe, struct smsdvb_client_t, frontend);
766
767 rc = smsdvb_send_statistics_request(client);
768
769 *ber = client->legacy_ber;
770
771 led_feedback(client);
772
773 return rc;
774 }
775
776 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
777 {
778 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
779 int rc;
780 s32 power = (s32) c->strength.stat[0].uvalue;
781 struct smsdvb_client_t *client;
782
783 client = container_of(fe, struct smsdvb_client_t, frontend);
784
785 rc = smsdvb_send_statistics_request(client);
786
787 if (power < -95)
788 *strength = 0;
789 else if (power > -29)
790 *strength = 65535;
791 else
792 *strength = (power + 95) * 65535 / 66;
793
794 led_feedback(client);
795
796 return rc;
797 }
798
799 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
800 {
801 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
802 int rc;
803 struct smsdvb_client_t *client;
804
805 client = container_of(fe, struct smsdvb_client_t, frontend);
806
807 rc = smsdvb_send_statistics_request(client);
808
809 /* Preferred scale for SNR with legacy API: 0.1 dB */
810 *snr = ((u32)c->cnr.stat[0].svalue) / 100;
811
812 led_feedback(client);
813
814 return rc;
815 }
816
817 static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
818 {
819 int rc;
820 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
821 struct smsdvb_client_t *client;
822
823 client = container_of(fe, struct smsdvb_client_t, frontend);
824
825 rc = smsdvb_send_statistics_request(client);
826
827 *ucblocks = c->block_error.stat[0].uvalue;
828
829 led_feedback(client);
830
831 return rc;
832 }
833
834 static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
835 struct dvb_frontend_tune_settings *tune)
836 {
837 sms_debug("");
838
839 tune->min_delay_ms = 400;
840 tune->step_size = 250000;
841 tune->max_drift = 0;
842 return 0;
843 }
844
845 static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe)
846 {
847 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
848 struct smsdvb_client_t *client =
849 container_of(fe, struct smsdvb_client_t, frontend);
850
851 struct {
852 struct sms_msg_hdr msg;
853 u32 Data[3];
854 } msg;
855
856 int ret;
857
858 client->fe_status = 0;
859 client->event_fe_state = -1;
860 client->event_unc_state = -1;
861 fe->dtv_property_cache.delivery_system = SYS_DVBT;
862
863 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
864 msg.msg.msg_dst_id = HIF_TASK;
865 msg.msg.msg_flags = 0;
866 msg.msg.msg_type = MSG_SMS_RF_TUNE_REQ;
867 msg.msg.msg_length = sizeof(msg);
868 msg.Data[0] = c->frequency;
869 msg.Data[2] = 12000000;
870
871 sms_info("%s: freq %d band %d", __func__, c->frequency,
872 c->bandwidth_hz);
873
874 switch (c->bandwidth_hz / 1000000) {
875 case 8:
876 msg.Data[1] = BW_8_MHZ;
877 break;
878 case 7:
879 msg.Data[1] = BW_7_MHZ;
880 break;
881 case 6:
882 msg.Data[1] = BW_6_MHZ;
883 break;
884 case 0:
885 return -EOPNOTSUPP;
886 default:
887 return -EINVAL;
888 }
889 /* Disable LNA, if any. An error is returned if no LNA is present */
890 ret = sms_board_lna_control(client->coredev, 0);
891 if (ret == 0) {
892 fe_status_t status;
893
894 /* tune with LNA off at first */
895 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
896 &client->tune_done);
897
898 smsdvb_read_status(fe, &status);
899
900 if (status & FE_HAS_LOCK)
901 return ret;
902
903 /* previous tune didn't lock - enable LNA and tune again */
904 sms_board_lna_control(client->coredev, 1);
905 }
906
907 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
908 &client->tune_done);
909 }
910
911 static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
912 {
913 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
914 struct smsdvb_client_t *client =
915 container_of(fe, struct smsdvb_client_t, frontend);
916 int board_id = smscore_get_board_id(client->coredev);
917 struct sms_board *board = sms_get_board(board_id);
918 enum sms_device_type_st type = board->type;
919 int ret;
920
921 struct {
922 struct sms_msg_hdr msg;
923 u32 Data[4];
924 } msg;
925
926 fe->dtv_property_cache.delivery_system = SYS_ISDBT;
927
928 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
929 msg.msg.msg_dst_id = HIF_TASK;
930 msg.msg.msg_flags = 0;
931 msg.msg.msg_type = MSG_SMS_ISDBT_TUNE_REQ;
932 msg.msg.msg_length = sizeof(msg);
933
934 if (c->isdbt_sb_segment_idx == -1)
935 c->isdbt_sb_segment_idx = 0;
936
937 if (!c->isdbt_layer_enabled)
938 c->isdbt_layer_enabled = 7;
939
940 msg.Data[0] = c->frequency;
941 msg.Data[1] = BW_ISDBT_1SEG;
942 msg.Data[2] = 12000000;
943 msg.Data[3] = c->isdbt_sb_segment_idx;
944
945 if (c->isdbt_partial_reception) {
946 if ((type == SMS_PELE || type == SMS_RIO) &&
947 c->isdbt_sb_segment_count > 3)
948 msg.Data[1] = BW_ISDBT_13SEG;
949 else if (c->isdbt_sb_segment_count > 1)
950 msg.Data[1] = BW_ISDBT_3SEG;
951 } else if (type == SMS_PELE || type == SMS_RIO)
952 msg.Data[1] = BW_ISDBT_13SEG;
953
954 c->bandwidth_hz = 6000000;
955
956 sms_info("%s: freq %d segwidth %d segindex %d", __func__,
957 c->frequency, c->isdbt_sb_segment_count,
958 c->isdbt_sb_segment_idx);
959
960 /* Disable LNA, if any. An error is returned if no LNA is present */
961 ret = sms_board_lna_control(client->coredev, 0);
962 if (ret == 0) {
963 fe_status_t status;
964
965 /* tune with LNA off at first */
966 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
967 &client->tune_done);
968
969 smsdvb_read_status(fe, &status);
970
971 if (status & FE_HAS_LOCK)
972 return ret;
973
974 /* previous tune didn't lock - enable LNA and tune again */
975 sms_board_lna_control(client->coredev, 1);
976 }
977 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
978 &client->tune_done);
979 }
980
981 static int smsdvb_set_frontend(struct dvb_frontend *fe)
982 {
983 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
984 struct smsdvb_client_t *client =
985 container_of(fe, struct smsdvb_client_t, frontend);
986 struct smscore_device_t *coredev = client->coredev;
987
988 smsdvb_stats_not_ready(fe);
989 c->strength.stat[0].uvalue = 0;
990 c->cnr.stat[0].uvalue = 0;
991
992 client->has_tuned = false;
993
994 switch (smscore_get_device_mode(coredev)) {
995 case DEVICE_MODE_DVBT:
996 case DEVICE_MODE_DVBT_BDA:
997 return smsdvb_dvbt_set_frontend(fe);
998 case DEVICE_MODE_ISDBT:
999 case DEVICE_MODE_ISDBT_BDA:
1000 return smsdvb_isdbt_set_frontend(fe);
1001 default:
1002 return -EINVAL;
1003 }
1004 }
1005
1006 /* Nothing to do here, as stats are automatically updated */
1007 static int smsdvb_get_frontend(struct dvb_frontend *fe)
1008 {
1009 return 0;
1010 }
1011
1012 static int smsdvb_init(struct dvb_frontend *fe)
1013 {
1014 struct smsdvb_client_t *client =
1015 container_of(fe, struct smsdvb_client_t, frontend);
1016
1017 sms_board_power(client->coredev, 1);
1018
1019 sms_board_dvb3_event(client, DVB3_EVENT_INIT);
1020 return 0;
1021 }
1022
1023 static int smsdvb_sleep(struct dvb_frontend *fe)
1024 {
1025 struct smsdvb_client_t *client =
1026 container_of(fe, struct smsdvb_client_t, frontend);
1027
1028 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
1029 sms_board_power(client->coredev, 0);
1030
1031 sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
1032
1033 return 0;
1034 }
1035
1036 static void smsdvb_release(struct dvb_frontend *fe)
1037 {
1038 /* do nothing */
1039 }
1040
1041 static struct dvb_frontend_ops smsdvb_fe_ops = {
1042 .info = {
1043 .name = "Siano Mobile Digital MDTV Receiver",
1044 .frequency_min = 44250000,
1045 .frequency_max = 867250000,
1046 .frequency_stepsize = 250000,
1047 .caps = FE_CAN_INVERSION_AUTO |
1048 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1049 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1050 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1051 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1052 FE_CAN_GUARD_INTERVAL_AUTO |
1053 FE_CAN_RECOVER |
1054 FE_CAN_HIERARCHY_AUTO,
1055 },
1056
1057 .release = smsdvb_release,
1058
1059 .set_frontend = smsdvb_set_frontend,
1060 .get_frontend = smsdvb_get_frontend,
1061 .get_tune_settings = smsdvb_get_tune_settings,
1062
1063 .read_status = smsdvb_read_status,
1064 .read_ber = smsdvb_read_ber,
1065 .read_signal_strength = smsdvb_read_signal_strength,
1066 .read_snr = smsdvb_read_snr,
1067 .read_ucblocks = smsdvb_read_ucblocks,
1068
1069 .init = smsdvb_init,
1070 .sleep = smsdvb_sleep,
1071 };
1072
1073 static int smsdvb_hotplug(struct smscore_device_t *coredev,
1074 struct device *device, int arrival)
1075 {
1076 struct smsclient_params_t params;
1077 struct smsdvb_client_t *client;
1078 int rc;
1079
1080 /* device removal handled by onremove callback */
1081 if (!arrival)
1082 return 0;
1083 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
1084 if (!client) {
1085 sms_err("kmalloc() failed");
1086 return -ENOMEM;
1087 }
1088
1089 /* register dvb adapter */
1090 rc = dvb_register_adapter(&client->adapter,
1091 sms_get_board(
1092 smscore_get_board_id(coredev))->name,
1093 THIS_MODULE, device, adapter_nr);
1094 if (rc < 0) {
1095 sms_err("dvb_register_adapter() failed %d", rc);
1096 goto adapter_error;
1097 }
1098
1099 /* init dvb demux */
1100 client->demux.dmx.capabilities = DMX_TS_FILTERING;
1101 client->demux.filternum = 32; /* todo: nova ??? */
1102 client->demux.feednum = 32;
1103 client->demux.start_feed = smsdvb_start_feed;
1104 client->demux.stop_feed = smsdvb_stop_feed;
1105
1106 rc = dvb_dmx_init(&client->demux);
1107 if (rc < 0) {
1108 sms_err("dvb_dmx_init failed %d", rc);
1109 goto dvbdmx_error;
1110 }
1111
1112 /* init dmxdev */
1113 client->dmxdev.filternum = 32;
1114 client->dmxdev.demux = &client->demux.dmx;
1115 client->dmxdev.capabilities = 0;
1116
1117 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
1118 if (rc < 0) {
1119 sms_err("dvb_dmxdev_init failed %d", rc);
1120 goto dmxdev_error;
1121 }
1122
1123 /* init and register frontend */
1124 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
1125 sizeof(struct dvb_frontend_ops));
1126
1127 switch (smscore_get_device_mode(coredev)) {
1128 case DEVICE_MODE_DVBT:
1129 case DEVICE_MODE_DVBT_BDA:
1130 client->frontend.ops.delsys[0] = SYS_DVBT;
1131 break;
1132 case DEVICE_MODE_ISDBT:
1133 case DEVICE_MODE_ISDBT_BDA:
1134 client->frontend.ops.delsys[0] = SYS_ISDBT;
1135 break;
1136 }
1137
1138 rc = dvb_register_frontend(&client->adapter, &client->frontend);
1139 if (rc < 0) {
1140 sms_err("frontend registration failed %d", rc);
1141 goto frontend_error;
1142 }
1143
1144 params.initial_id = 1;
1145 params.data_type = MSG_SMS_DVBT_BDA_DATA;
1146 params.onresponse_handler = smsdvb_onresponse;
1147 params.onremove_handler = smsdvb_onremove;
1148 params.context = client;
1149
1150 rc = smscore_register_client(coredev, &params, &client->smsclient);
1151 if (rc < 0) {
1152 sms_err("smscore_register_client() failed %d", rc);
1153 goto client_error;
1154 }
1155
1156 client->coredev = coredev;
1157
1158 init_completion(&client->tune_done);
1159 init_completion(&client->stats_done);
1160
1161 kmutex_lock(&g_smsdvb_clientslock);
1162
1163 list_add(&client->entry, &g_smsdvb_clients);
1164
1165 kmutex_unlock(&g_smsdvb_clientslock);
1166
1167 client->event_fe_state = -1;
1168 client->event_unc_state = -1;
1169 sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
1170
1171 sms_info("success");
1172 sms_board_setup(coredev);
1173
1174 if (smsdvb_debugfs_create(client) < 0)
1175 sms_info("failed to create debugfs node");
1176
1177 return 0;
1178
1179 client_error:
1180 dvb_unregister_frontend(&client->frontend);
1181
1182 frontend_error:
1183 dvb_dmxdev_release(&client->dmxdev);
1184
1185 dmxdev_error:
1186 dvb_dmx_release(&client->demux);
1187
1188 dvbdmx_error:
1189 dvb_unregister_adapter(&client->adapter);
1190
1191 adapter_error:
1192 kfree(client);
1193 return rc;
1194 }
1195
1196 static int __init smsdvb_module_init(void)
1197 {
1198 int rc;
1199
1200 INIT_LIST_HEAD(&g_smsdvb_clients);
1201 kmutex_init(&g_smsdvb_clientslock);
1202
1203 smsdvb_debugfs_register();
1204
1205 rc = smscore_register_hotplug(smsdvb_hotplug);
1206
1207 sms_debug("");
1208
1209 return rc;
1210 }
1211
1212 static void __exit smsdvb_module_exit(void)
1213 {
1214 smscore_unregister_hotplug(smsdvb_hotplug);
1215
1216 kmutex_lock(&g_smsdvb_clientslock);
1217
1218 while (!list_empty(&g_smsdvb_clients))
1219 smsdvb_unregister_client((struct smsdvb_client_t *)g_smsdvb_clients.next);
1220
1221 smsdvb_debugfs_unregister();
1222
1223 kmutex_unlock(&g_smsdvb_clientslock);
1224 }
1225
1226 module_init(smsdvb_module_init);
1227 module_exit(smsdvb_module_exit);
1228
1229 MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
1230 MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
1231 MODULE_LICENSE("GPL");
CRIS linux kernel tree