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of: MSI: Simplify irqdomain lookup
[linux/fpc-iii.git] / drivers / media / common / siano / smsdvb-main.c
blobf4305ae800f4c9fc4540edfefca910c1f0ece166
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 "smscoreapi.h"
23
24 #include <linux/module.h>
25 #include <linux/slab.h>
26 #include <linux/init.h>
27 #include <asm/div64.h>
28
29 #include "dmxdev.h"
30 #include "dvbdev.h"
31 #include "dvb_demux.h"
32 #include "dvb_frontend.h"
33
34 #include "sms-cards.h"
35
36 #include "smsdvb.h"
37
38 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
39
40 static struct list_head g_smsdvb_clients;
41 static struct mutex g_smsdvb_clientslock;
42
43 static u32 sms_to_guard_interval_table[] = {
44 [0] = GUARD_INTERVAL_1_32,
45 [1] = GUARD_INTERVAL_1_16,
46 [2] = GUARD_INTERVAL_1_8,
47 [3] = GUARD_INTERVAL_1_4,
48 };
49
50 static u32 sms_to_code_rate_table[] = {
51 [0] = FEC_1_2,
52 [1] = FEC_2_3,
53 [2] = FEC_3_4,
54 [3] = FEC_5_6,
55 [4] = FEC_7_8,
56 };
57
58
59 static u32 sms_to_hierarchy_table[] = {
60 [0] = HIERARCHY_NONE,
61 [1] = HIERARCHY_1,
62 [2] = HIERARCHY_2,
63 [3] = HIERARCHY_4,
64 };
65
66 static u32 sms_to_modulation_table[] = {
67 [0] = QPSK,
68 [1] = QAM_16,
69 [2] = QAM_64,
70 [3] = DQPSK,
71 };
72
73
74 /* Events that may come from DVB v3 adapter */
75 static void sms_board_dvb3_event(struct smsdvb_client_t *client,
76 enum SMS_DVB3_EVENTS event) {
77
78 struct smscore_device_t *coredev = client->coredev;
79 switch (event) {
80 case DVB3_EVENT_INIT:
81 pr_debug("DVB3_EVENT_INIT\n");
82 sms_board_event(coredev, BOARD_EVENT_BIND);
83 break;
84 case DVB3_EVENT_SLEEP:
85 pr_debug("DVB3_EVENT_SLEEP\n");
86 sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
87 break;
88 case DVB3_EVENT_HOTPLUG:
89 pr_debug("DVB3_EVENT_HOTPLUG\n");
90 sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
91 break;
92 case DVB3_EVENT_FE_LOCK:
93 if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
94 client->event_fe_state = DVB3_EVENT_FE_LOCK;
95 pr_debug("DVB3_EVENT_FE_LOCK\n");
96 sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
97 }
98 break;
99 case DVB3_EVENT_FE_UNLOCK:
100 if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
101 client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
102 pr_debug("DVB3_EVENT_FE_UNLOCK\n");
103 sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
104 }
105 break;
106 case DVB3_EVENT_UNC_OK:
107 if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
108 client->event_unc_state = DVB3_EVENT_UNC_OK;
109 pr_debug("DVB3_EVENT_UNC_OK\n");
110 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
111 }
112 break;
113 case DVB3_EVENT_UNC_ERR:
114 if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
115 client->event_unc_state = DVB3_EVENT_UNC_ERR;
116 pr_debug("DVB3_EVENT_UNC_ERR\n");
117 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
118 }
119 break;
120
121 default:
122 pr_err("Unknown dvb3 api event\n");
123 break;
124 }
125 }
126
127 static void smsdvb_stats_not_ready(struct dvb_frontend *fe)
128 {
129 struct smsdvb_client_t *client =
130 container_of(fe, struct smsdvb_client_t, frontend);
131 struct smscore_device_t *coredev = client->coredev;
132 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
133 int i, n_layers;
134
135 switch (smscore_get_device_mode(coredev)) {
136 case DEVICE_MODE_ISDBT:
137 case DEVICE_MODE_ISDBT_BDA:
138 n_layers = 4;
139 break;
140 default:
141 n_layers = 1;
142 }
143
144 /* Global stats */
145 c->strength.len = 1;
146 c->cnr.len = 1;
147 c->strength.stat[0].scale = FE_SCALE_DECIBEL;
148 c->cnr.stat[0].scale = FE_SCALE_DECIBEL;
149
150 /* Per-layer stats */
151 c->post_bit_error.len = n_layers;
152 c->post_bit_count.len = n_layers;
153 c->block_error.len = n_layers;
154 c->block_count.len = n_layers;
155
156 /*
157 * Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically
158 * changed when the stats become available.
159 */
160 for (i = 0; i < n_layers; i++) {
161 c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
162 c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
163 c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
164 c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE;
165 }
166 }
167
168 static inline int sms_to_mode(u32 mode)
169 {
170 switch (mode) {
171 case 2:
172 return TRANSMISSION_MODE_2K;
173 case 4:
174 return TRANSMISSION_MODE_4K;
175 case 8:
176 return TRANSMISSION_MODE_8K;
177 }
178 return TRANSMISSION_MODE_AUTO;
179 }
180
181 static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked)
182 {
183 if (is_demod_locked)
184 return FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
185 FE_HAS_SYNC | FE_HAS_LOCK;
186
187 if (is_rf_locked)
188 return FE_HAS_SIGNAL | FE_HAS_CARRIER;
189
190 return 0;
191 }
192
193 static inline u32 sms_to_bw(u32 value)
194 {
195 return value * 1000000;
196 }
197
198 #define convert_from_table(value, table, defval) ({ \
199 u32 __ret; \
200 if (value < ARRAY_SIZE(table)) \
201 __ret = table[value]; \
202 else \
203 __ret = defval; \
204 __ret; \
205 })
206
207 #define sms_to_guard_interval(value) \
208 convert_from_table(value, sms_to_guard_interval_table, \
209 GUARD_INTERVAL_AUTO);
210
211 #define sms_to_code_rate(value) \
212 convert_from_table(value, sms_to_code_rate_table, \
213 FEC_NONE);
214
215 #define sms_to_hierarchy(value) \
216 convert_from_table(value, sms_to_hierarchy_table, \
217 FEC_NONE);
218
219 #define sms_to_modulation(value) \
220 convert_from_table(value, sms_to_modulation_table, \
221 FEC_NONE);
222
223 static void smsdvb_update_tx_params(struct smsdvb_client_t *client,
224 struct sms_tx_stats *p)
225 {
226 struct dvb_frontend *fe = &client->frontend;
227 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
228
229 c->frequency = p->frequency;
230 client->fe_status = sms_to_status(p->is_demod_locked, 0);
231 c->bandwidth_hz = sms_to_bw(p->bandwidth);
232 c->transmission_mode = sms_to_mode(p->transmission_mode);
233 c->guard_interval = sms_to_guard_interval(p->guard_interval);
234 c->code_rate_HP = sms_to_code_rate(p->code_rate);
235 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
236 c->hierarchy = sms_to_hierarchy(p->hierarchy);
237 c->modulation = sms_to_modulation(p->constellation);
238 }
239
240 static void smsdvb_update_per_slices(struct smsdvb_client_t *client,
241 struct RECEPTION_STATISTICS_PER_SLICES_S *p)
242 {
243 struct dvb_frontend *fe = &client->frontend;
244 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
245 u64 tmp;
246
247 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
248 c->modulation = sms_to_modulation(p->constellation);
249
250 /* signal Strength, in DBm */
251 c->strength.stat[0].uvalue = p->in_band_power * 1000;
252
253 /* Carrier to noise ratio, in DB */
254 c->cnr.stat[0].svalue = p->snr * 1000;
255
256 /* PER/BER requires demod lock */
257 if (!p->is_demod_locked)
258 return;
259
260 /* TS PER */
261 client->last_per = c->block_error.stat[0].uvalue;
262 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
263 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
264 c->block_error.stat[0].uvalue += p->ets_packets;
265 c->block_count.stat[0].uvalue += p->ets_packets + p->ts_packets;
266
267 /* ber */
268 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
269 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
270 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
271 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
272
273 /* Legacy PER/BER */
274 tmp = p->ets_packets * 65535;
275 if (p->ts_packets + p->ets_packets)
276 do_div(tmp, p->ts_packets + p->ets_packets);
277 client->legacy_per = tmp;
278 }
279
280 static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client,
281 struct sms_stats *p)
282 {
283 struct dvb_frontend *fe = &client->frontend;
284 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
285
286 if (client->prt_dvb_stats)
287 client->prt_dvb_stats(client->debug_data, p);
288
289 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
290
291 /* Update DVB modulation parameters */
292 c->frequency = p->frequency;
293 client->fe_status = sms_to_status(p->is_demod_locked, 0);
294 c->bandwidth_hz = sms_to_bw(p->bandwidth);
295 c->transmission_mode = sms_to_mode(p->transmission_mode);
296 c->guard_interval = sms_to_guard_interval(p->guard_interval);
297 c->code_rate_HP = sms_to_code_rate(p->code_rate);
298 c->code_rate_LP = sms_to_code_rate(p->lp_code_rate);
299 c->hierarchy = sms_to_hierarchy(p->hierarchy);
300 c->modulation = sms_to_modulation(p->constellation);
301
302 /* update reception data */
303 c->lna = p->is_external_lna_on ? 1 : 0;
304
305 /* Carrier to noise ratio, in DB */
306 c->cnr.stat[0].svalue = p->SNR * 1000;
307
308 /* signal Strength, in DBm */
309 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
310
311 /* PER/BER requires demod lock */
312 if (!p->is_demod_locked)
313 return;
314
315 /* TS PER */
316 client->last_per = c->block_error.stat[0].uvalue;
317 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
318 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
319 c->block_error.stat[0].uvalue += p->error_ts_packets;
320 c->block_count.stat[0].uvalue += p->total_ts_packets;
321
322 /* ber */
323 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
324 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
325 c->post_bit_error.stat[0].uvalue += p->ber_error_count;
326 c->post_bit_count.stat[0].uvalue += p->ber_bit_count;
327
328 /* Legacy PER/BER */
329 client->legacy_ber = p->ber;
330 };
331
332 static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client,
333 struct sms_isdbt_stats *p)
334 {
335 struct dvb_frontend *fe = &client->frontend;
336 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
337 struct sms_isdbt_layer_stats *lr;
338 int i, n_layers;
339
340 if (client->prt_isdb_stats)
341 client->prt_isdb_stats(client->debug_data, p);
342
343 client->fe_status = sms_to_status(p->is_demod_locked, p->is_rf_locked);
344
345 /*
346 * Firmware 2.1 seems to report only lock status and
347 * signal strength. The signal strength indicator is at the
348 * wrong field.
349 */
350 if (p->statistics_type == 0) {
351 c->strength.stat[0].uvalue = ((s32)p->transmission_mode) * 1000;
352 c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE;
353 return;
354 }
355
356 /* Update ISDB-T transmission parameters */
357 c->frequency = p->frequency;
358 c->bandwidth_hz = sms_to_bw(p->bandwidth);
359 c->transmission_mode = sms_to_mode(p->transmission_mode);
360 c->guard_interval = sms_to_guard_interval(p->guard_interval);
361 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
362 n_layers = p->num_of_layers;
363 if (n_layers < 1)
364 n_layers = 1;
365 if (n_layers > 3)
366 n_layers = 3;
367 c->isdbt_layer_enabled = 0;
368
369 /* update reception data */
370 c->lna = p->is_external_lna_on ? 1 : 0;
371
372 /* Carrier to noise ratio, in DB */
373 c->cnr.stat[0].svalue = p->SNR * 1000;
374
375 /* signal Strength, in DBm */
376 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
377
378 /* PER/BER and per-layer stats require demod lock */
379 if (!p->is_demod_locked)
380 return;
381
382 client->last_per = c->block_error.stat[0].uvalue;
383
384 /* Clears global counters, as the code below will sum it again */
385 c->block_error.stat[0].uvalue = 0;
386 c->block_count.stat[0].uvalue = 0;
387 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
388 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
389 c->post_bit_error.stat[0].uvalue = 0;
390 c->post_bit_count.stat[0].uvalue = 0;
391 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
392 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
393
394 for (i = 0; i < n_layers; i++) {
395 lr = &p->layer_info[i];
396
397 /* Update per-layer transmission parameters */
398 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
399 c->isdbt_layer_enabled |= 1 << i;
400 c->layer[i].segment_count = lr->number_of_segments;
401 } else {
402 continue;
403 }
404 c->layer[i].modulation = sms_to_modulation(lr->constellation);
405
406 /* TS PER */
407 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
408 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
409 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
410 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
411
412 /* Update global PER counter */
413 c->block_error.stat[0].uvalue += lr->error_ts_packets;
414 c->block_count.stat[0].uvalue += lr->total_ts_packets;
415
416 /* BER */
417 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
418 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
419 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
420 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
421
422 /* Update global BER counter */
423 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
424 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
425 }
426 }
427
428 static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client,
429 struct sms_isdbt_stats_ex *p)
430 {
431 struct dvb_frontend *fe = &client->frontend;
432 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
433 struct sms_isdbt_layer_stats *lr;
434 int i, n_layers;
435
436 if (client->prt_isdb_stats_ex)
437 client->prt_isdb_stats_ex(client->debug_data, p);
438
439 /* Update ISDB-T transmission parameters */
440 c->frequency = p->frequency;
441 client->fe_status = sms_to_status(p->is_demod_locked, 0);
442 c->bandwidth_hz = sms_to_bw(p->bandwidth);
443 c->transmission_mode = sms_to_mode(p->transmission_mode);
444 c->guard_interval = sms_to_guard_interval(p->guard_interval);
445 c->isdbt_partial_reception = p->partial_reception ? 1 : 0;
446 n_layers = p->num_of_layers;
447 if (n_layers < 1)
448 n_layers = 1;
449 if (n_layers > 3)
450 n_layers = 3;
451 c->isdbt_layer_enabled = 0;
452
453 /* update reception data */
454 c->lna = p->is_external_lna_on ? 1 : 0;
455
456 /* Carrier to noise ratio, in DB */
457 c->cnr.stat[0].svalue = p->SNR * 1000;
458
459 /* signal Strength, in DBm */
460 c->strength.stat[0].uvalue = p->in_band_pwr * 1000;
461
462 /* PER/BER and per-layer stats require demod lock */
463 if (!p->is_demod_locked)
464 return;
465
466 client->last_per = c->block_error.stat[0].uvalue;
467
468 /* Clears global counters, as the code below will sum it again */
469 c->block_error.stat[0].uvalue = 0;
470 c->block_count.stat[0].uvalue = 0;
471 c->block_error.stat[0].scale = FE_SCALE_COUNTER;
472 c->block_count.stat[0].scale = FE_SCALE_COUNTER;
473 c->post_bit_error.stat[0].uvalue = 0;
474 c->post_bit_count.stat[0].uvalue = 0;
475 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER;
476 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER;
477
478 c->post_bit_error.len = n_layers + 1;
479 c->post_bit_count.len = n_layers + 1;
480 c->block_error.len = n_layers + 1;
481 c->block_count.len = n_layers + 1;
482 for (i = 0; i < n_layers; i++) {
483 lr = &p->layer_info[i];
484
485 /* Update per-layer transmission parameters */
486 if (lr->number_of_segments > 0 && lr->number_of_segments < 13) {
487 c->isdbt_layer_enabled |= 1 << i;
488 c->layer[i].segment_count = lr->number_of_segments;
489 } else {
490 continue;
491 }
492 c->layer[i].modulation = sms_to_modulation(lr->constellation);
493
494 /* TS PER */
495 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER;
496 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER;
497 c->block_error.stat[i + 1].uvalue += lr->error_ts_packets;
498 c->block_count.stat[i + 1].uvalue += lr->total_ts_packets;
499
500 /* Update global PER counter */
501 c->block_error.stat[0].uvalue += lr->error_ts_packets;
502 c->block_count.stat[0].uvalue += lr->total_ts_packets;
503
504 /* ber */
505 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER;
506 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER;
507 c->post_bit_error.stat[i + 1].uvalue += lr->ber_error_count;
508 c->post_bit_count.stat[i + 1].uvalue += lr->ber_bit_count;
509
510 /* Update global ber counter */
511 c->post_bit_error.stat[0].uvalue += lr->ber_error_count;
512 c->post_bit_count.stat[0].uvalue += lr->ber_bit_count;
513 }
514 }
515
516 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
517 {
518 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
519 struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) (((u8 *) cb->p)
520 + cb->offset);
521 void *p = phdr + 1;
522 struct dvb_frontend *fe = &client->frontend;
523 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
524 bool is_status_update = false;
525
526 switch (phdr->msg_type) {
527 case MSG_SMS_DVBT_BDA_DATA:
528 /*
529 * Only feed data to dvb demux if are there any feed listening
530 * to it and if the device has tuned
531 */
532 if (client->feed_users && client->has_tuned)
533 dvb_dmx_swfilter(&client->demux, p,
534 cb->size - sizeof(struct sms_msg_hdr));
535 break;
536
537 case MSG_SMS_RF_TUNE_RES:
538 case MSG_SMS_ISDBT_TUNE_RES:
539 complete(&client->tune_done);
540 break;
541
542 case MSG_SMS_SIGNAL_DETECTED_IND:
543 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER |
544 FE_HAS_VITERBI | FE_HAS_SYNC |
545 FE_HAS_LOCK;
546
547 is_status_update = true;
548 break;
549
550 case MSG_SMS_NO_SIGNAL_IND:
551 client->fe_status = 0;
552
553 is_status_update = true;
554 break;
555
556 case MSG_SMS_TRANSMISSION_IND:
557 smsdvb_update_tx_params(client, p);
558
559 is_status_update = true;
560 break;
561
562 case MSG_SMS_HO_PER_SLICES_IND:
563 smsdvb_update_per_slices(client, p);
564
565 is_status_update = true;
566 break;
567
568 case MSG_SMS_GET_STATISTICS_RES:
569 switch (smscore_get_device_mode(client->coredev)) {
570 case DEVICE_MODE_ISDBT:
571 case DEVICE_MODE_ISDBT_BDA:
572 smsdvb_update_isdbt_stats(client, p);
573 break;
574 default:
575 /* Skip sms_msg_statistics_info:request_result field */
576 smsdvb_update_dvb_stats(client, p + sizeof(u32));
577 }
578
579 is_status_update = true;
580 break;
581
582 /* Only for ISDB-T */
583 case MSG_SMS_GET_STATISTICS_EX_RES:
584 /* Skip sms_msg_statistics_info:request_result field? */
585 smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32));
586 is_status_update = true;
587 break;
588 default:
589 pr_debug("message not handled\n");
590 }
591 smscore_putbuffer(client->coredev, cb);
592
593 if (is_status_update) {
594 if (client->fe_status & FE_HAS_LOCK) {
595 sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
596 if (client->last_per == c->block_error.stat[0].uvalue)
597 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
598 else
599 sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR);
600 client->has_tuned = true;
601 } else {
602 smsdvb_stats_not_ready(fe);
603 client->has_tuned = false;
604 sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
605 }
606 complete(&client->stats_done);
607 }
608
609 return 0;
610 }
611
612 static void smsdvb_media_device_unregister(struct smsdvb_client_t *client)
613 {
614 #ifdef CONFIG_MEDIA_CONTROLLER_DVB
615 struct smscore_device_t *coredev = client->coredev;
616
617 if (!coredev->media_dev)
618 return;
619 media_device_unregister(coredev->media_dev);
620 kfree(coredev->media_dev);
621 coredev->media_dev = NULL;
622 #endif
623 }
624
625 static void smsdvb_unregister_client(struct smsdvb_client_t *client)
626 {
627 /* must be called under clientslock */
628
629 list_del(&client->entry);
630
631 smsdvb_debugfs_release(client);
632 smscore_unregister_client(client->smsclient);
633 dvb_unregister_frontend(&client->frontend);
634 dvb_dmxdev_release(&client->dmxdev);
635 dvb_dmx_release(&client->demux);
636 smsdvb_media_device_unregister(client);
637 dvb_unregister_adapter(&client->adapter);
638 kfree(client);
639 }
640
641 static void smsdvb_onremove(void *context)
642 {
643 kmutex_lock(&g_smsdvb_clientslock);
644
645 smsdvb_unregister_client((struct smsdvb_client_t *) context);
646
647 kmutex_unlock(&g_smsdvb_clientslock);
648 }
649
650 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
651 {
652 struct smsdvb_client_t *client =
653 container_of(feed->demux, struct smsdvb_client_t, demux);
654 struct sms_msg_data pid_msg;
655
656 pr_debug("add pid %d(%x)\n",
657 feed->pid, feed->pid);
658
659 client->feed_users++;
660
661 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
662 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
663 pid_msg.x_msg_header.msg_flags = 0;
664 pid_msg.x_msg_header.msg_type = MSG_SMS_ADD_PID_FILTER_REQ;
665 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
666 pid_msg.msg_data[0] = feed->pid;
667
668 return smsclient_sendrequest(client->smsclient,
669 &pid_msg, sizeof(pid_msg));
670 }
671
672 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
673 {
674 struct smsdvb_client_t *client =
675 container_of(feed->demux, struct smsdvb_client_t, demux);
676 struct sms_msg_data pid_msg;
677
678 pr_debug("remove pid %d(%x)\n",
679 feed->pid, feed->pid);
680
681 client->feed_users--;
682
683 pid_msg.x_msg_header.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
684 pid_msg.x_msg_header.msg_dst_id = HIF_TASK;
685 pid_msg.x_msg_header.msg_flags = 0;
686 pid_msg.x_msg_header.msg_type = MSG_SMS_REMOVE_PID_FILTER_REQ;
687 pid_msg.x_msg_header.msg_length = sizeof(pid_msg);
688 pid_msg.msg_data[0] = feed->pid;
689
690 return smsclient_sendrequest(client->smsclient,
691 &pid_msg, sizeof(pid_msg));
692 }
693
694 static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
695 void *buffer, size_t size,
696 struct completion *completion)
697 {
698 int rc;
699
700 rc = smsclient_sendrequest(client->smsclient, buffer, size);
701 if (rc < 0)
702 return rc;
703
704 return wait_for_completion_timeout(completion,
705 msecs_to_jiffies(2000)) ?
706 0 : -ETIME;
707 }
708
709 static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
710 {
711 int rc;
712 struct sms_msg_hdr msg;
713
714 /* Don't request stats too fast */
715 if (client->get_stats_jiffies &&
716 (!time_after(jiffies, client->get_stats_jiffies)))
717 return 0;
718 client->get_stats_jiffies = jiffies + msecs_to_jiffies(100);
719
720 msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
721 msg.msg_dst_id = HIF_TASK;
722 msg.msg_flags = 0;
723 msg.msg_length = sizeof(msg);
724
725 switch (smscore_get_device_mode(client->coredev)) {
726 case DEVICE_MODE_ISDBT:
727 case DEVICE_MODE_ISDBT_BDA:
728 /*
729 * Check for firmware version, to avoid breaking for old cards
730 */
731 if (client->coredev->fw_version >= 0x800)
732 msg.msg_type = MSG_SMS_GET_STATISTICS_EX_REQ;
733 else
734 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
735 break;
736 default:
737 msg.msg_type = MSG_SMS_GET_STATISTICS_REQ;
738 }
739
740 rc = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
741 &client->stats_done);
742
743 return rc;
744 }
745
746 static inline int led_feedback(struct smsdvb_client_t *client)
747 {
748 if (!(client->fe_status & FE_HAS_LOCK))
749 return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
750
751 return sms_board_led_feedback(client->coredev,
752 (client->legacy_ber == 0) ?
753 SMS_LED_HI : SMS_LED_LO);
754 }
755
756 static int smsdvb_read_status(struct dvb_frontend *fe, enum fe_status *stat)
757 {
758 int rc;
759 struct smsdvb_client_t *client;
760 client = container_of(fe, struct smsdvb_client_t, frontend);
761
762 rc = smsdvb_send_statistics_request(client);
763
764 *stat = client->fe_status;
765
766 led_feedback(client);
767
768 return rc;
769 }
770
771 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
772 {
773 int rc;
774 struct smsdvb_client_t *client;
775
776 client = container_of(fe, struct smsdvb_client_t, frontend);
777
778 rc = smsdvb_send_statistics_request(client);
779
780 *ber = client->legacy_ber;
781
782 led_feedback(client);
783
784 return rc;
785 }
786
787 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
788 {
789 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
790 int rc;
791 s32 power = (s32) c->strength.stat[0].uvalue;
792 struct smsdvb_client_t *client;
793
794 client = container_of(fe, struct smsdvb_client_t, frontend);
795
796 rc = smsdvb_send_statistics_request(client);
797
798 if (power < -95)
799 *strength = 0;
800 else if (power > -29)
801 *strength = 65535;
802 else
803 *strength = (power + 95) * 65535 / 66;
804
805 led_feedback(client);
806
807 return rc;
808 }
809
810 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
811 {
812 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
813 int rc;
814 struct smsdvb_client_t *client;
815
816 client = container_of(fe, struct smsdvb_client_t, frontend);
817
818 rc = smsdvb_send_statistics_request(client);
819
820 /* Preferred scale for SNR with legacy API: 0.1 dB */
821 *snr = ((u32)c->cnr.stat[0].svalue) / 100;
822
823 led_feedback(client);
824
825 return rc;
826 }
827
828 static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
829 {
830 int rc;
831 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
832 struct smsdvb_client_t *client;
833
834 client = container_of(fe, struct smsdvb_client_t, frontend);
835
836 rc = smsdvb_send_statistics_request(client);
837
838 *ucblocks = c->block_error.stat[0].uvalue;
839
840 led_feedback(client);
841
842 return rc;
843 }
844
845 static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
846 struct dvb_frontend_tune_settings *tune)
847 {
848 pr_debug("\n");
849
850 tune->min_delay_ms = 400;
851 tune->step_size = 250000;
852 tune->max_drift = 0;
853 return 0;
854 }
855
856 static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe)
857 {
858 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
859 struct smsdvb_client_t *client =
860 container_of(fe, struct smsdvb_client_t, frontend);
861
862 struct {
863 struct sms_msg_hdr msg;
864 u32 Data[3];
865 } msg;
866
867 int ret;
868
869 client->fe_status = 0;
870 client->event_fe_state = -1;
871 client->event_unc_state = -1;
872 fe->dtv_property_cache.delivery_system = SYS_DVBT;
873
874 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
875 msg.msg.msg_dst_id = HIF_TASK;
876 msg.msg.msg_flags = 0;
877 msg.msg.msg_type = MSG_SMS_RF_TUNE_REQ;
878 msg.msg.msg_length = sizeof(msg);
879 msg.Data[0] = c->frequency;
880 msg.Data[2] = 12000000;
881
882 pr_debug("%s: freq %d band %d\n", __func__, c->frequency,
883 c->bandwidth_hz);
884
885 switch (c->bandwidth_hz / 1000000) {
886 case 8:
887 msg.Data[1] = BW_8_MHZ;
888 break;
889 case 7:
890 msg.Data[1] = BW_7_MHZ;
891 break;
892 case 6:
893 msg.Data[1] = BW_6_MHZ;
894 break;
895 case 0:
896 return -EOPNOTSUPP;
897 default:
898 return -EINVAL;
899 }
900 /* Disable LNA, if any. An error is returned if no LNA is present */
901 ret = sms_board_lna_control(client->coredev, 0);
902 if (ret == 0) {
903 enum fe_status status;
904
905 /* tune with LNA off at first */
906 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
907 &client->tune_done);
908
909 smsdvb_read_status(fe, &status);
910
911 if (status & FE_HAS_LOCK)
912 return ret;
913
914 /* previous tune didn't lock - enable LNA and tune again */
915 sms_board_lna_control(client->coredev, 1);
916 }
917
918 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
919 &client->tune_done);
920 }
921
922 static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
923 {
924 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
925 struct smsdvb_client_t *client =
926 container_of(fe, struct smsdvb_client_t, frontend);
927 int board_id = smscore_get_board_id(client->coredev);
928 struct sms_board *board = sms_get_board(board_id);
929 enum sms_device_type_st type = board->type;
930 int ret;
931
932 struct {
933 struct sms_msg_hdr msg;
934 u32 Data[4];
935 } msg;
936
937 fe->dtv_property_cache.delivery_system = SYS_ISDBT;
938
939 msg.msg.msg_src_id = DVBT_BDA_CONTROL_MSG_ID;
940 msg.msg.msg_dst_id = HIF_TASK;
941 msg.msg.msg_flags = 0;
942 msg.msg.msg_type = MSG_SMS_ISDBT_TUNE_REQ;
943 msg.msg.msg_length = sizeof(msg);
944
945 if (c->isdbt_sb_segment_idx == -1)
946 c->isdbt_sb_segment_idx = 0;
947
948 if (!c->isdbt_layer_enabled)
949 c->isdbt_layer_enabled = 7;
950
951 msg.Data[0] = c->frequency;
952 msg.Data[1] = BW_ISDBT_1SEG;
953 msg.Data[2] = 12000000;
954 msg.Data[3] = c->isdbt_sb_segment_idx;
955
956 if (c->isdbt_partial_reception) {
957 if ((type == SMS_PELE || type == SMS_RIO) &&
958 c->isdbt_sb_segment_count > 3)
959 msg.Data[1] = BW_ISDBT_13SEG;
960 else if (c->isdbt_sb_segment_count > 1)
961 msg.Data[1] = BW_ISDBT_3SEG;
962 } else if (type == SMS_PELE || type == SMS_RIO)
963 msg.Data[1] = BW_ISDBT_13SEG;
964
965 c->bandwidth_hz = 6000000;
966
967 pr_debug("freq %d segwidth %d segindex %d\n",
968 c->frequency, c->isdbt_sb_segment_count,
969 c->isdbt_sb_segment_idx);
970
971 /* Disable LNA, if any. An error is returned if no LNA is present */
972 ret = sms_board_lna_control(client->coredev, 0);
973 if (ret == 0) {
974 enum fe_status status;
975
976 /* tune with LNA off at first */
977 ret = smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
978 &client->tune_done);
979
980 smsdvb_read_status(fe, &status);
981
982 if (status & FE_HAS_LOCK)
983 return ret;
984
985 /* previous tune didn't lock - enable LNA and tune again */
986 sms_board_lna_control(client->coredev, 1);
987 }
988 return smsdvb_sendrequest_and_wait(client, &msg, sizeof(msg),
989 &client->tune_done);
990 }
991
992 static int smsdvb_set_frontend(struct dvb_frontend *fe)
993 {
994 struct dtv_frontend_properties *c = &fe->dtv_property_cache;
995 struct smsdvb_client_t *client =
996 container_of(fe, struct smsdvb_client_t, frontend);
997 struct smscore_device_t *coredev = client->coredev;
998
999 smsdvb_stats_not_ready(fe);
1000 c->strength.stat[0].uvalue = 0;
1001 c->cnr.stat[0].uvalue = 0;
1002
1003 client->has_tuned = false;
1004
1005 switch (smscore_get_device_mode(coredev)) {
1006 case DEVICE_MODE_DVBT:
1007 case DEVICE_MODE_DVBT_BDA:
1008 return smsdvb_dvbt_set_frontend(fe);
1009 case DEVICE_MODE_ISDBT:
1010 case DEVICE_MODE_ISDBT_BDA:
1011 return smsdvb_isdbt_set_frontend(fe);
1012 default:
1013 return -EINVAL;
1014 }
1015 }
1016
1017 /* Nothing to do here, as stats are automatically updated */
1018 static int smsdvb_get_frontend(struct dvb_frontend *fe)
1019 {
1020 return 0;
1021 }
1022
1023 static int smsdvb_init(struct dvb_frontend *fe)
1024 {
1025 struct smsdvb_client_t *client =
1026 container_of(fe, struct smsdvb_client_t, frontend);
1027
1028 sms_board_power(client->coredev, 1);
1029
1030 sms_board_dvb3_event(client, DVB3_EVENT_INIT);
1031 return 0;
1032 }
1033
1034 static int smsdvb_sleep(struct dvb_frontend *fe)
1035 {
1036 struct smsdvb_client_t *client =
1037 container_of(fe, struct smsdvb_client_t, frontend);
1038
1039 sms_board_led_feedback(client->coredev, SMS_LED_OFF);
1040 sms_board_power(client->coredev, 0);
1041
1042 sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
1043
1044 return 0;
1045 }
1046
1047 static void smsdvb_release(struct dvb_frontend *fe)
1048 {
1049 /* do nothing */
1050 }
1051
1052 static struct dvb_frontend_ops smsdvb_fe_ops = {
1053 .info = {
1054 .name = "Siano Mobile Digital MDTV Receiver",
1055 .frequency_min = 44250000,
1056 .frequency_max = 867250000,
1057 .frequency_stepsize = 250000,
1058 .caps = FE_CAN_INVERSION_AUTO |
1059 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
1060 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
1061 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
1062 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
1063 FE_CAN_GUARD_INTERVAL_AUTO |
1064 FE_CAN_RECOVER |
1065 FE_CAN_HIERARCHY_AUTO,
1066 },
1067
1068 .release = smsdvb_release,
1069
1070 .set_frontend = smsdvb_set_frontend,
1071 .get_frontend = smsdvb_get_frontend,
1072 .get_tune_settings = smsdvb_get_tune_settings,
1073
1074 .read_status = smsdvb_read_status,
1075 .read_ber = smsdvb_read_ber,
1076 .read_signal_strength = smsdvb_read_signal_strength,
1077 .read_snr = smsdvb_read_snr,
1078 .read_ucblocks = smsdvb_read_ucblocks,
1079
1080 .init = smsdvb_init,
1081 .sleep = smsdvb_sleep,
1082 };
1083
1084 static int smsdvb_hotplug(struct smscore_device_t *coredev,
1085 struct device *device, int arrival)
1086 {
1087 struct smsclient_params_t params;
1088 struct smsdvb_client_t *client;
1089 int rc;
1090
1091 /* device removal handled by onremove callback */
1092 if (!arrival)
1093 return 0;
1094 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
1095 if (!client)
1096 return -ENOMEM;
1097
1098 /* register dvb adapter */
1099 rc = dvb_register_adapter(&client->adapter,
1100 sms_get_board(
1101 smscore_get_board_id(coredev))->name,
1102 THIS_MODULE, device, adapter_nr);
1103 if (rc < 0) {
1104 pr_err("dvb_register_adapter() failed %d\n", rc);
1105 goto adapter_error;
1106 }
1107 dvb_register_media_controller(&client->adapter, coredev->media_dev);
1108
1109 /* init dvb demux */
1110 client->demux.dmx.capabilities = DMX_TS_FILTERING;
1111 client->demux.filternum = 32; /* todo: nova ??? */
1112 client->demux.feednum = 32;
1113 client->demux.start_feed = smsdvb_start_feed;
1114 client->demux.stop_feed = smsdvb_stop_feed;
1115
1116 rc = dvb_dmx_init(&client->demux);
1117 if (rc < 0) {
1118 pr_err("dvb_dmx_init failed %d\n", rc);
1119 goto dvbdmx_error;
1120 }
1121
1122 /* init dmxdev */
1123 client->dmxdev.filternum = 32;
1124 client->dmxdev.demux = &client->demux.dmx;
1125 client->dmxdev.capabilities = 0;
1126
1127 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
1128 if (rc < 0) {
1129 pr_err("dvb_dmxdev_init failed %d\n", rc);
1130 goto dmxdev_error;
1131 }
1132
1133 /* init and register frontend */
1134 memcpy(&client->frontend.ops, &smsdvb_fe_ops,
1135 sizeof(struct dvb_frontend_ops));
1136
1137 switch (smscore_get_device_mode(coredev)) {
1138 case DEVICE_MODE_DVBT:
1139 case DEVICE_MODE_DVBT_BDA:
1140 client->frontend.ops.delsys[0] = SYS_DVBT;
1141 break;
1142 case DEVICE_MODE_ISDBT:
1143 case DEVICE_MODE_ISDBT_BDA:
1144 client->frontend.ops.delsys[0] = SYS_ISDBT;
1145 break;
1146 }
1147
1148 rc = dvb_register_frontend(&client->adapter, &client->frontend);
1149 if (rc < 0) {
1150 pr_err("frontend registration failed %d\n", rc);
1151 goto frontend_error;
1152 }
1153
1154 params.initial_id = 1;
1155 params.data_type = MSG_SMS_DVBT_BDA_DATA;
1156 params.onresponse_handler = smsdvb_onresponse;
1157 params.onremove_handler = smsdvb_onremove;
1158 params.context = client;
1159
1160 rc = smscore_register_client(coredev, &params, &client->smsclient);
1161 if (rc < 0) {
1162 pr_err("smscore_register_client() failed %d\n", rc);
1163 goto client_error;
1164 }
1165
1166 client->coredev = coredev;
1167
1168 init_completion(&client->tune_done);
1169 init_completion(&client->stats_done);
1170
1171 kmutex_lock(&g_smsdvb_clientslock);
1172
1173 list_add(&client->entry, &g_smsdvb_clients);
1174
1175 kmutex_unlock(&g_smsdvb_clientslock);
1176
1177 client->event_fe_state = -1;
1178 client->event_unc_state = -1;
1179 sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
1180
1181 sms_board_setup(coredev);
1182
1183 if (smsdvb_debugfs_create(client) < 0)
1184 pr_info("failed to create debugfs node\n");
1185
1186 dvb_create_media_graph(&client->adapter);
1187
1188 pr_info("DVB interface registered.\n");
1189 return 0;
1190
1191 client_error:
1192 dvb_unregister_frontend(&client->frontend);
1193
1194 frontend_error:
1195 dvb_dmxdev_release(&client->dmxdev);
1196
1197 dmxdev_error:
1198 dvb_dmx_release(&client->demux);
1199
1200 dvbdmx_error:
1201 smsdvb_media_device_unregister(client);
1202 dvb_unregister_adapter(&client->adapter);
1203
1204 adapter_error:
1205 kfree(client);
1206 return rc;
1207 }
1208
1209 static int __init smsdvb_module_init(void)
1210 {
1211 int rc;
1212
1213 INIT_LIST_HEAD(&g_smsdvb_clients);
1214 kmutex_init(&g_smsdvb_clientslock);
1215
1216 smsdvb_debugfs_register();
1217
1218 rc = smscore_register_hotplug(smsdvb_hotplug);
1219
1220 pr_debug("\n");
1221
1222 return rc;
1223 }
1224
1225 static void __exit smsdvb_module_exit(void)
1226 {
1227 smscore_unregister_hotplug(smsdvb_hotplug);
1228
1229 kmutex_lock(&g_smsdvb_clientslock);
1230
1231 while (!list_empty(&g_smsdvb_clients))
1232 smsdvb_unregister_client((struct smsdvb_client_t *)g_smsdvb_clients.next);
1233
1234 smsdvb_debugfs_unregister();
1235
1236 kmutex_unlock(&g_smsdvb_clientslock);
1237 }
1238
1239 module_init(smsdvb_module_init);
1240 module_exit(smsdvb_module_exit);
1241
1242 MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
1243 MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
1244 MODULE_LICENSE("GPL");
Linux with added FPC-III support