smsdvb-main.c revision 5c3b87435b291efb260aec37fdbe397859e550c5
1/**************************************************************** 2 3Siano Mobile Silicon, Inc. 4MDTV receiver kernel modules. 5Copyright (C) 2006-2008, Uri Shkolnik 6 7This program is free software: you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the 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, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along 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 26#include "dmxdev.h" 27#include "dvbdev.h" 28#include "dvb_demux.h" 29#include "dvb_frontend.h" 30 31#include "smscoreapi.h" 32#include "sms-cards.h" 33 34#include "smsdvb.h" 35 36DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); 37 38static struct list_head g_smsdvb_clients; 39static struct mutex g_smsdvb_clientslock; 40 41static int sms_dbg; 42module_param_named(debug, sms_dbg, int, 0644); 43MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))"); 44 45 46u32 sms_to_guard_interval_table[] = { 47 [0] = GUARD_INTERVAL_1_32, 48 [1] = GUARD_INTERVAL_1_16, 49 [2] = GUARD_INTERVAL_1_8, 50 [3] = GUARD_INTERVAL_1_4, 51}; 52 53u32 sms_to_code_rate_table[] = { 54 [0] = FEC_1_2, 55 [1] = FEC_2_3, 56 [2] = FEC_3_4, 57 [3] = FEC_5_6, 58 [4] = FEC_7_8, 59}; 60 61 62u32 sms_to_hierarchy_table[] = { 63 [0] = HIERARCHY_NONE, 64 [1] = HIERARCHY_1, 65 [2] = HIERARCHY_2, 66 [3] = HIERARCHY_4, 67}; 68 69u32 sms_to_modulation_table[] = { 70 [0] = QPSK, 71 [1] = QAM_16, 72 [2] = QAM_64, 73 [3] = DQPSK, 74}; 75 76 77/* Events that may come from DVB v3 adapter */ 78static void sms_board_dvb3_event(struct smsdvb_client_t *client, 79 enum SMS_DVB3_EVENTS event) { 80 81 struct smscore_device_t *coredev = client->coredev; 82 switch (event) { 83 case DVB3_EVENT_INIT: 84 sms_debug("DVB3_EVENT_INIT"); 85 sms_board_event(coredev, BOARD_EVENT_BIND); 86 break; 87 case DVB3_EVENT_SLEEP: 88 sms_debug("DVB3_EVENT_SLEEP"); 89 sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND); 90 break; 91 case DVB3_EVENT_HOTPLUG: 92 sms_debug("DVB3_EVENT_HOTPLUG"); 93 sms_board_event(coredev, BOARD_EVENT_POWER_INIT); 94 break; 95 case DVB3_EVENT_FE_LOCK: 96 if (client->event_fe_state != DVB3_EVENT_FE_LOCK) { 97 client->event_fe_state = DVB3_EVENT_FE_LOCK; 98 sms_debug("DVB3_EVENT_FE_LOCK"); 99 sms_board_event(coredev, BOARD_EVENT_FE_LOCK); 100 } 101 break; 102 case DVB3_EVENT_FE_UNLOCK: 103 if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) { 104 client->event_fe_state = DVB3_EVENT_FE_UNLOCK; 105 sms_debug("DVB3_EVENT_FE_UNLOCK"); 106 sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK); 107 } 108 break; 109 case DVB3_EVENT_UNC_OK: 110 if (client->event_unc_state != DVB3_EVENT_UNC_OK) { 111 client->event_unc_state = DVB3_EVENT_UNC_OK; 112 sms_debug("DVB3_EVENT_UNC_OK"); 113 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK); 114 } 115 break; 116 case DVB3_EVENT_UNC_ERR: 117 if (client->event_unc_state != DVB3_EVENT_UNC_ERR) { 118 client->event_unc_state = DVB3_EVENT_UNC_ERR; 119 sms_debug("DVB3_EVENT_UNC_ERR"); 120 sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS); 121 } 122 break; 123 124 default: 125 sms_err("Unknown dvb3 api event"); 126 break; 127 } 128} 129 130static void smsdvb_stats_not_ready(struct dvb_frontend *fe) 131{ 132 struct smsdvb_client_t *client = 133 container_of(fe, struct smsdvb_client_t, frontend); 134 struct smscore_device_t *coredev = client->coredev; 135 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 136 int i, n_layers; 137 138 switch (smscore_get_device_mode(coredev)) { 139 case DEVICE_MODE_ISDBT: 140 case DEVICE_MODE_ISDBT_BDA: 141 n_layers = 4; 142 default: 143 n_layers = 1; 144 } 145 146 /* Global stats */ 147 c->strength.len = 1; 148 c->cnr.len = 1; 149 c->strength.stat[0].scale = FE_SCALE_DECIBEL; 150 c->cnr.stat[0].scale = FE_SCALE_DECIBEL; 151 152 /* Per-layer stats */ 153 c->post_bit_error.len = n_layers; 154 c->post_bit_count.len = n_layers; 155 c->block_error.len = n_layers; 156 c->block_count.len = n_layers; 157 158 /* 159 * Put all of them at FE_SCALE_NOT_AVAILABLE. They're dynamically 160 * changed when the stats become available. 161 */ 162 for (i = 0; i < n_layers; i++) { 163 c->post_bit_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; 164 c->post_bit_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; 165 c->block_error.stat[i].scale = FE_SCALE_NOT_AVAILABLE; 166 c->block_count.stat[i].scale = FE_SCALE_NOT_AVAILABLE; 167 } 168} 169 170static inline int sms_to_mode(u32 mode) 171{ 172 switch (mode) { 173 case 2: 174 return TRANSMISSION_MODE_2K; 175 case 4: 176 return TRANSMISSION_MODE_4K; 177 case 8: 178 return TRANSMISSION_MODE_8K; 179 } 180 return TRANSMISSION_MODE_AUTO; 181} 182 183static inline int sms_to_status(u32 is_demod_locked, u32 is_rf_locked) 184{ 185 if (is_demod_locked) 186 return FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | 187 FE_HAS_SYNC | FE_HAS_LOCK; 188 189 if (is_rf_locked) 190 return FE_HAS_SIGNAL | FE_HAS_CARRIER; 191 192 return 0; 193} 194 195static inline u32 sms_to_bw(u32 value) 196{ 197 return value * 1000000; 198} 199 200#define convert_from_table(value, table, defval) ({ \ 201 u32 __ret; \ 202 if (value < ARRAY_SIZE(table)) \ 203 __ret = table[value]; \ 204 else \ 205 __ret = defval; \ 206 __ret; \ 207}) 208 209#define sms_to_guard_interval(value) \ 210 convert_from_table(value, sms_to_guard_interval_table, \ 211 GUARD_INTERVAL_AUTO); 212 213#define sms_to_code_rate(value) \ 214 convert_from_table(value, sms_to_code_rate_table, \ 215 FEC_NONE); 216 217#define sms_to_hierarchy(value) \ 218 convert_from_table(value, sms_to_hierarchy_table, \ 219 FEC_NONE); 220 221#define sms_to_modulation(value) \ 222 convert_from_table(value, sms_to_modulation_table, \ 223 FEC_NONE); 224 225static void smsdvb_update_tx_params(struct smsdvb_client_t *client, 226 struct TRANSMISSION_STATISTICS_S *p) 227{ 228 struct dvb_frontend *fe = &client->frontend; 229 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 230 231 c->frequency = p->Frequency; 232 client->fe_status = sms_to_status(p->IsDemodLocked, 0); 233 c->bandwidth_hz = sms_to_bw(p->Bandwidth); 234 c->transmission_mode = sms_to_mode(p->TransmissionMode); 235 c->guard_interval = sms_to_guard_interval(p->GuardInterval); 236 c->code_rate_HP = sms_to_code_rate(p->CodeRate); 237 c->code_rate_LP = sms_to_code_rate(p->LPCodeRate); 238 c->hierarchy = sms_to_hierarchy(p->Hierarchy); 239 c->modulation = sms_to_modulation(p->Constellation); 240} 241 242static void smsdvb_update_per_slices(struct smsdvb_client_t *client, 243 struct RECEPTION_STATISTICS_PER_SLICES_S *p) 244{ 245 struct dvb_frontend *fe = &client->frontend; 246 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 247 248 client->fe_status = sms_to_status(p->IsDemodLocked, p->IsRfLocked); 249 c->modulation = sms_to_modulation(p->constellation); 250 251 /* Signal Strength, in DBm */ 252 c->strength.stat[0].uvalue = p->inBandPower * 1000; 253 254 /* Carrier to Noise ratio, in DB */ 255 c->cnr.stat[0].svalue = p->snr * 1000; 256 257 /* PER/BER requires demod lock */ 258 if (!p->IsDemodLocked) 259 return; 260 261 /* TS PER */ 262 client->last_per = c->block_error.stat[0].uvalue; 263 c->block_error.stat[0].scale = FE_SCALE_COUNTER; 264 c->block_count.stat[0].scale = FE_SCALE_COUNTER; 265 c->block_error.stat[0].uvalue += p->etsPackets; 266 c->block_count.stat[0].uvalue += p->etsPackets + p->tsPackets; 267 268 /* BER */ 269 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 270 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 271 c->post_bit_error.stat[0].uvalue += p->BERErrorCount; 272 c->post_bit_count.stat[0].uvalue += p->BERBitCount; 273 274 /* Legacy PER/BER */ 275 client->legacy_per = (p->etsPackets * 65535) / 276 (p->tsPackets + p->etsPackets); 277} 278 279static void smsdvb_update_dvb_stats(struct smsdvb_client_t *client, 280 struct SMSHOSTLIB_STATISTICS_ST *p) 281{ 282 struct dvb_frontend *fe = &client->frontend; 283 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 284 285 if (client->prt_dvb_stats) 286 client->prt_dvb_stats(client->debug_data, p); 287 288 client->fe_status = sms_to_status(p->IsDemodLocked, p->IsRfLocked); 289 290 /* Update DVB modulation parameters */ 291 c->frequency = p->Frequency; 292 client->fe_status = sms_to_status(p->IsDemodLocked, 0); 293 c->bandwidth_hz = sms_to_bw(p->Bandwidth); 294 c->transmission_mode = sms_to_mode(p->TransmissionMode); 295 c->guard_interval = sms_to_guard_interval(p->GuardInterval); 296 c->code_rate_HP = sms_to_code_rate(p->CodeRate); 297 c->code_rate_LP = sms_to_code_rate(p->LPCodeRate); 298 c->hierarchy = sms_to_hierarchy(p->Hierarchy); 299 c->modulation = sms_to_modulation(p->Constellation); 300 301 /* update reception data */ 302 c->lna = p->IsExternalLNAOn ? 1 : 0; 303 304 /* Carrier to Noise ratio, in DB */ 305 c->cnr.stat[0].svalue = p->SNR * 1000; 306 307 /* Signal Strength, in DBm */ 308 c->strength.stat[0].uvalue = p->InBandPwr * 1000; 309 310 /* PER/BER requires demod lock */ 311 if (!p->IsDemodLocked) 312 return; 313 314 /* TS PER */ 315 client->last_per = c->block_error.stat[0].uvalue; 316 c->block_error.stat[0].scale = FE_SCALE_COUNTER; 317 c->block_count.stat[0].scale = FE_SCALE_COUNTER; 318 c->block_error.stat[0].uvalue += p->ErrorTSPackets; 319 c->block_count.stat[0].uvalue += p->TotalTSPackets; 320 321 /* BER */ 322 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 323 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 324 c->post_bit_error.stat[0].uvalue += p->BERErrorCount; 325 c->post_bit_count.stat[0].uvalue += p->BERBitCount; 326 327 /* Legacy PER/BER */ 328 client->legacy_ber = p->BER; 329}; 330 331static void smsdvb_update_isdbt_stats(struct smsdvb_client_t *client, 332 struct SMSHOSTLIB_STATISTICS_ISDBT_ST *p) 333{ 334 struct dvb_frontend *fe = &client->frontend; 335 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 336 struct SMSHOSTLIB_ISDBT_LAYER_STAT_ST *lr; 337 int i, n_layers; 338 339 if (client->prt_isdb_stats) 340 client->prt_isdb_stats(client->debug_data, p); 341 342 /* Update ISDB-T transmission parameters */ 343 c->frequency = p->Frequency; 344 client->fe_status = sms_to_status(p->IsDemodLocked, 0); 345 c->bandwidth_hz = sms_to_bw(p->Bandwidth); 346 c->transmission_mode = sms_to_mode(p->TransmissionMode); 347 c->guard_interval = sms_to_guard_interval(p->GuardInterval); 348 c->isdbt_partial_reception = p->PartialReception ? 1 : 0; 349 n_layers = p->NumOfLayers; 350 if (n_layers < 1) 351 n_layers = 1; 352 if (n_layers > 3) 353 n_layers = 3; 354 c->isdbt_layer_enabled = 0; 355 356 /* update reception data */ 357 c->lna = p->IsExternalLNAOn ? 1 : 0; 358 359 /* Carrier to Noise ratio, in DB */ 360 c->cnr.stat[0].svalue = p->SNR * 1000; 361 362 /* Signal Strength, in DBm */ 363 c->strength.stat[0].uvalue = p->InBandPwr * 1000; 364 365 /* PER/BER and per-layer stats require demod lock */ 366 if (!p->IsDemodLocked) 367 return; 368 369 client->last_per = c->block_error.stat[0].uvalue; 370 371 /* Clears global counters, as the code below will sum it again */ 372 c->block_error.stat[0].uvalue = 0; 373 c->block_count.stat[0].uvalue = 0; 374 c->block_error.stat[0].scale = FE_SCALE_COUNTER; 375 c->block_count.stat[0].scale = FE_SCALE_COUNTER; 376 c->post_bit_error.stat[0].uvalue = 0; 377 c->post_bit_count.stat[0].uvalue = 0; 378 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 379 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 380 381 for (i = 0; i < n_layers; i++) { 382 lr = &p->LayerInfo[i]; 383 384 /* Update per-layer transmission parameters */ 385 if (lr->NumberOfSegments > 0 && lr->NumberOfSegments < 13) { 386 c->isdbt_layer_enabled |= 1 << i; 387 c->layer[i].segment_count = lr->NumberOfSegments; 388 } else { 389 continue; 390 } 391 c->layer[i].modulation = sms_to_modulation(lr->Constellation); 392 393 /* TS PER */ 394 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER; 395 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER; 396 c->block_error.stat[i + 1].uvalue += lr->ErrorTSPackets; 397 c->block_count.stat[i + 1].uvalue += lr->TotalTSPackets; 398 399 /* Update global PER counter */ 400 c->block_error.stat[0].uvalue += lr->ErrorTSPackets; 401 c->block_count.stat[0].uvalue += lr->TotalTSPackets; 402 403 /* BER */ 404 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER; 405 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER; 406 c->post_bit_error.stat[i + 1].uvalue += lr->BERErrorCount; 407 c->post_bit_count.stat[i + 1].uvalue += lr->BERBitCount; 408 409 /* Update global BER counter */ 410 c->post_bit_error.stat[0].uvalue += lr->BERErrorCount; 411 c->post_bit_count.stat[0].uvalue += lr->BERBitCount; 412 } 413} 414 415static void smsdvb_update_isdbt_stats_ex(struct smsdvb_client_t *client, 416 struct SMSHOSTLIB_STATISTICS_ISDBT_EX_ST *p) 417{ 418 struct dvb_frontend *fe = &client->frontend; 419 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 420 struct SMSHOSTLIB_ISDBT_LAYER_STAT_ST *lr; 421 int i, n_layers; 422 423 if (client->prt_isdb_stats_ex) 424 client->prt_isdb_stats_ex(client->debug_data, p); 425 426 /* Update ISDB-T transmission parameters */ 427 c->frequency = p->Frequency; 428 client->fe_status = sms_to_status(p->IsDemodLocked, 0); 429 c->bandwidth_hz = sms_to_bw(p->Bandwidth); 430 c->transmission_mode = sms_to_mode(p->TransmissionMode); 431 c->guard_interval = sms_to_guard_interval(p->GuardInterval); 432 c->isdbt_partial_reception = p->PartialReception ? 1 : 0; 433 n_layers = p->NumOfLayers; 434 if (n_layers < 1) 435 n_layers = 1; 436 if (n_layers > 3) 437 n_layers = 3; 438 c->isdbt_layer_enabled = 0; 439 440 /* update reception data */ 441 c->lna = p->IsExternalLNAOn ? 1 : 0; 442 443 /* Carrier to Noise ratio, in DB */ 444 c->cnr.stat[0].svalue = p->SNR * 1000; 445 446 /* Signal Strength, in DBm */ 447 c->strength.stat[0].uvalue = p->InBandPwr * 1000; 448 449 /* PER/BER and per-layer stats require demod lock */ 450 if (!p->IsDemodLocked) 451 return; 452 453 client->last_per = c->block_error.stat[0].uvalue; 454 455 /* Clears global counters, as the code below will sum it again */ 456 c->block_error.stat[0].uvalue = 0; 457 c->block_count.stat[0].uvalue = 0; 458 c->block_error.stat[0].scale = FE_SCALE_COUNTER; 459 c->block_count.stat[0].scale = FE_SCALE_COUNTER; 460 c->post_bit_error.stat[0].uvalue = 0; 461 c->post_bit_count.stat[0].uvalue = 0; 462 c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; 463 c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; 464 465 c->post_bit_error.len = n_layers + 1; 466 c->post_bit_count.len = n_layers + 1; 467 c->block_error.len = n_layers + 1; 468 c->block_count.len = n_layers + 1; 469 for (i = 0; i < n_layers; i++) { 470 lr = &p->LayerInfo[i]; 471 472 /* Update per-layer transmission parameters */ 473 if (lr->NumberOfSegments > 0 && lr->NumberOfSegments < 13) { 474 c->isdbt_layer_enabled |= 1 << i; 475 c->layer[i].segment_count = lr->NumberOfSegments; 476 } else { 477 continue; 478 } 479 c->layer[i].modulation = sms_to_modulation(lr->Constellation); 480 481 /* TS PER */ 482 c->block_error.stat[i + 1].scale = FE_SCALE_COUNTER; 483 c->block_count.stat[i + 1].scale = FE_SCALE_COUNTER; 484 c->block_error.stat[i + 1].uvalue += lr->ErrorTSPackets; 485 c->block_count.stat[i + 1].uvalue += lr->TotalTSPackets; 486 487 /* Update global PER counter */ 488 c->block_error.stat[0].uvalue += lr->ErrorTSPackets; 489 c->block_count.stat[0].uvalue += lr->TotalTSPackets; 490 491 /* BER */ 492 c->post_bit_error.stat[i + 1].scale = FE_SCALE_COUNTER; 493 c->post_bit_count.stat[i + 1].scale = FE_SCALE_COUNTER; 494 c->post_bit_error.stat[i + 1].uvalue += lr->BERErrorCount; 495 c->post_bit_count.stat[i + 1].uvalue += lr->BERBitCount; 496 497 /* Update global BER counter */ 498 c->post_bit_error.stat[0].uvalue += lr->BERErrorCount; 499 c->post_bit_count.stat[0].uvalue += lr->BERBitCount; 500 } 501} 502 503static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb) 504{ 505 struct smsdvb_client_t *client = (struct smsdvb_client_t *) context; 506 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) (((u8 *) cb->p) 507 + cb->offset); 508 void *p = phdr + 1; 509 struct dvb_frontend *fe = &client->frontend; 510 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 511 bool is_status_update = false; 512 513 switch (phdr->msgType) { 514 case MSG_SMS_DVBT_BDA_DATA: 515 dvb_dmx_swfilter(&client->demux, p, 516 cb->size - sizeof(struct SmsMsgHdr_ST)); 517 break; 518 519 case MSG_SMS_RF_TUNE_RES: 520 case MSG_SMS_ISDBT_TUNE_RES: 521 complete(&client->tune_done); 522 break; 523 524 case MSG_SMS_SIGNAL_DETECTED_IND: 525 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER | 526 FE_HAS_VITERBI | FE_HAS_SYNC | 527 FE_HAS_LOCK; 528 529 is_status_update = true; 530 break; 531 532 case MSG_SMS_NO_SIGNAL_IND: 533 client->fe_status = 0; 534 535 is_status_update = true; 536 break; 537 538 case MSG_SMS_TRANSMISSION_IND: 539 smsdvb_update_tx_params(client, p); 540 541 is_status_update = true; 542 break; 543 544 case MSG_SMS_HO_PER_SLICES_IND: 545 smsdvb_update_per_slices(client, p); 546 547 is_status_update = true; 548 break; 549 550 case MSG_SMS_GET_STATISTICS_RES: 551 switch (smscore_get_device_mode(client->coredev)) { 552 case DEVICE_MODE_ISDBT: 553 case DEVICE_MODE_ISDBT_BDA: 554 smsdvb_update_isdbt_stats(client, p); 555 break; 556 default: 557 /* Skip SmsMsgStatisticsInfo_ST:RequestResult field */ 558 smsdvb_update_dvb_stats(client, p + sizeof(u32)); 559 } 560 561 is_status_update = true; 562 break; 563 564 /* Only for ISDB-T */ 565 case MSG_SMS_GET_STATISTICS_EX_RES: 566 /* Skip SmsMsgStatisticsInfo_ST:RequestResult field? */ 567 smsdvb_update_isdbt_stats_ex(client, p + sizeof(u32)); 568 is_status_update = true; 569 break; 570 default: 571 sms_info("message not handled"); 572 } 573 smscore_putbuffer(client->coredev, cb); 574 575 if (is_status_update) { 576 if (client->fe_status & FE_HAS_LOCK) { 577 sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK); 578 if (client->last_per == c->block_error.stat[0].uvalue) 579 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK); 580 else 581 sms_board_dvb3_event(client, DVB3_EVENT_UNC_ERR); 582 } else { 583 smsdvb_stats_not_ready(fe); 584 585 sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK); 586 } 587 complete(&client->stats_done); 588 } 589 590 return 0; 591} 592 593static void smsdvb_unregister_client(struct smsdvb_client_t *client) 594{ 595 /* must be called under clientslock */ 596 597 list_del(&client->entry); 598 599 smsdvb_debugfs_release(client); 600 smscore_unregister_client(client->smsclient); 601 dvb_unregister_frontend(&client->frontend); 602 dvb_dmxdev_release(&client->dmxdev); 603 dvb_dmx_release(&client->demux); 604 dvb_unregister_adapter(&client->adapter); 605 kfree(client); 606} 607 608static void smsdvb_onremove(void *context) 609{ 610 kmutex_lock(&g_smsdvb_clientslock); 611 612 smsdvb_unregister_client((struct smsdvb_client_t *) context); 613 614 kmutex_unlock(&g_smsdvb_clientslock); 615} 616 617static int smsdvb_start_feed(struct dvb_demux_feed *feed) 618{ 619 struct smsdvb_client_t *client = 620 container_of(feed->demux, struct smsdvb_client_t, demux); 621 struct SmsMsgData_ST PidMsg; 622 623 sms_debug("add pid %d(%x)", 624 feed->pid, feed->pid); 625 626 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; 627 PidMsg.xMsgHeader.msgDstId = HIF_TASK; 628 PidMsg.xMsgHeader.msgFlags = 0; 629 PidMsg.xMsgHeader.msgType = MSG_SMS_ADD_PID_FILTER_REQ; 630 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg); 631 PidMsg.msgData[0] = feed->pid; 632 633 return smsclient_sendrequest(client->smsclient, 634 &PidMsg, sizeof(PidMsg)); 635} 636 637static int smsdvb_stop_feed(struct dvb_demux_feed *feed) 638{ 639 struct smsdvb_client_t *client = 640 container_of(feed->demux, struct smsdvb_client_t, demux); 641 struct SmsMsgData_ST PidMsg; 642 643 sms_debug("remove pid %d(%x)", 644 feed->pid, feed->pid); 645 646 PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; 647 PidMsg.xMsgHeader.msgDstId = HIF_TASK; 648 PidMsg.xMsgHeader.msgFlags = 0; 649 PidMsg.xMsgHeader.msgType = MSG_SMS_REMOVE_PID_FILTER_REQ; 650 PidMsg.xMsgHeader.msgLength = sizeof(PidMsg); 651 PidMsg.msgData[0] = feed->pid; 652 653 return smsclient_sendrequest(client->smsclient, 654 &PidMsg, sizeof(PidMsg)); 655} 656 657static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client, 658 void *buffer, size_t size, 659 struct completion *completion) 660{ 661 int rc; 662 663 rc = smsclient_sendrequest(client->smsclient, buffer, size); 664 if (rc < 0) 665 return rc; 666 667 return wait_for_completion_timeout(completion, 668 msecs_to_jiffies(2000)) ? 669 0 : -ETIME; 670} 671 672static int smsdvb_send_statistics_request(struct smsdvb_client_t *client) 673{ 674 int rc; 675 struct SmsMsgHdr_ST Msg; 676 677 /* Don't request stats too fast */ 678 if (client->get_stats_jiffies && 679 (!time_after(jiffies, client->get_stats_jiffies))) 680 return 0; 681 client->get_stats_jiffies = jiffies + msecs_to_jiffies(100); 682 683 Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; 684 Msg.msgDstId = HIF_TASK; 685 Msg.msgFlags = 0; 686 Msg.msgLength = sizeof(Msg); 687 688 switch (smscore_get_device_mode(client->coredev)) { 689 case DEVICE_MODE_ISDBT: 690 case DEVICE_MODE_ISDBT_BDA: 691 /* 692 * Check for firmware version, to avoid breaking for old cards 693 */ 694 if (client->coredev->fw_version >= 0x800) 695 Msg.msgType = MSG_SMS_GET_STATISTICS_EX_REQ; 696 else 697 Msg.msgType = MSG_SMS_GET_STATISTICS_REQ; 698 break; 699 default: 700 Msg.msgType = MSG_SMS_GET_STATISTICS_REQ; 701 } 702 703 rc = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), 704 &client->stats_done); 705 706 return rc; 707} 708 709static inline int led_feedback(struct smsdvb_client_t *client) 710{ 711 if (!(client->fe_status & FE_HAS_LOCK)) 712 return sms_board_led_feedback(client->coredev, SMS_LED_OFF); 713 714 return sms_board_led_feedback(client->coredev, 715 (client->legacy_ber == 0) ? 716 SMS_LED_HI : SMS_LED_LO); 717} 718 719static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat) 720{ 721 int rc; 722 struct smsdvb_client_t *client; 723 client = container_of(fe, struct smsdvb_client_t, frontend); 724 725 rc = smsdvb_send_statistics_request(client); 726 727 *stat = client->fe_status; 728 729 led_feedback(client); 730 731 return rc; 732} 733 734static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber) 735{ 736 int rc; 737 struct smsdvb_client_t *client; 738 739 client = container_of(fe, struct smsdvb_client_t, frontend); 740 741 rc = smsdvb_send_statistics_request(client); 742 743 *ber = client->legacy_ber; 744 745 led_feedback(client); 746 747 return rc; 748} 749 750static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength) 751{ 752 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 753 int rc; 754 s32 power = (s32) c->strength.stat[0].uvalue; 755 struct smsdvb_client_t *client; 756 757 client = container_of(fe, struct smsdvb_client_t, frontend); 758 759 rc = smsdvb_send_statistics_request(client); 760 761 if (power < -95) 762 *strength = 0; 763 else if (power > -29) 764 *strength = 65535; 765 else 766 *strength = (power + 95) * 65535 / 66; 767 768 led_feedback(client); 769 770 return rc; 771} 772 773static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr) 774{ 775 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 776 int rc; 777 struct smsdvb_client_t *client; 778 779 client = container_of(fe, struct smsdvb_client_t, frontend); 780 781 rc = smsdvb_send_statistics_request(client); 782 783 /* Preferred scale for SNR with legacy API: 0.1 dB */ 784 *snr = c->cnr.stat[0].svalue / 100; 785 786 led_feedback(client); 787 788 return rc; 789} 790 791static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) 792{ 793 int rc; 794 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 795 struct smsdvb_client_t *client; 796 797 client = container_of(fe, struct smsdvb_client_t, frontend); 798 799 rc = smsdvb_send_statistics_request(client); 800 801 *ucblocks = c->block_error.stat[0].uvalue; 802 803 led_feedback(client); 804 805 return rc; 806} 807 808static int smsdvb_get_tune_settings(struct dvb_frontend *fe, 809 struct dvb_frontend_tune_settings *tune) 810{ 811 sms_debug(""); 812 813 tune->min_delay_ms = 400; 814 tune->step_size = 250000; 815 tune->max_drift = 0; 816 return 0; 817} 818 819static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe) 820{ 821 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 822 struct smsdvb_client_t *client = 823 container_of(fe, struct smsdvb_client_t, frontend); 824 825 struct { 826 struct SmsMsgHdr_ST Msg; 827 u32 Data[3]; 828 } Msg; 829 830 int ret; 831 832 client->fe_status = 0; 833 client->event_fe_state = -1; 834 client->event_unc_state = -1; 835 fe->dtv_property_cache.delivery_system = SYS_DVBT; 836 837 Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; 838 Msg.Msg.msgDstId = HIF_TASK; 839 Msg.Msg.msgFlags = 0; 840 Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ; 841 Msg.Msg.msgLength = sizeof(Msg); 842 Msg.Data[0] = c->frequency; 843 Msg.Data[2] = 12000000; 844 845 sms_info("%s: freq %d band %d", __func__, c->frequency, 846 c->bandwidth_hz); 847 848 switch (c->bandwidth_hz / 1000000) { 849 case 8: 850 Msg.Data[1] = BW_8_MHZ; 851 break; 852 case 7: 853 Msg.Data[1] = BW_7_MHZ; 854 break; 855 case 6: 856 Msg.Data[1] = BW_6_MHZ; 857 break; 858 case 0: 859 return -EOPNOTSUPP; 860 default: 861 return -EINVAL; 862 } 863 /* Disable LNA, if any. An error is returned if no LNA is present */ 864 ret = sms_board_lna_control(client->coredev, 0); 865 if (ret == 0) { 866 fe_status_t status; 867 868 /* tune with LNA off at first */ 869 ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), 870 &client->tune_done); 871 872 smsdvb_read_status(fe, &status); 873 874 if (status & FE_HAS_LOCK) 875 return ret; 876 877 /* previous tune didn't lock - enable LNA and tune again */ 878 sms_board_lna_control(client->coredev, 1); 879 } 880 881 return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), 882 &client->tune_done); 883} 884 885static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe) 886{ 887 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 888 struct smsdvb_client_t *client = 889 container_of(fe, struct smsdvb_client_t, frontend); 890 int board_id = smscore_get_board_id(client->coredev); 891 struct sms_board *board = sms_get_board(board_id); 892 enum sms_device_type_st type = board->type; 893 int ret; 894 895 struct { 896 struct SmsMsgHdr_ST Msg; 897 u32 Data[4]; 898 } Msg; 899 900 fe->dtv_property_cache.delivery_system = SYS_ISDBT; 901 902 Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID; 903 Msg.Msg.msgDstId = HIF_TASK; 904 Msg.Msg.msgFlags = 0; 905 Msg.Msg.msgType = MSG_SMS_ISDBT_TUNE_REQ; 906 Msg.Msg.msgLength = sizeof(Msg); 907 908 if (c->isdbt_sb_segment_idx == -1) 909 c->isdbt_sb_segment_idx = 0; 910 911 if (!c->isdbt_layer_enabled) 912 c->isdbt_layer_enabled = 7; 913 914 Msg.Data[0] = c->frequency; 915 Msg.Data[1] = BW_ISDBT_1SEG; 916 Msg.Data[2] = 12000000; 917 Msg.Data[3] = c->isdbt_sb_segment_idx; 918 919 if (c->isdbt_partial_reception) { 920 if ((type == SMS_PELE || type == SMS_RIO) && 921 c->isdbt_sb_segment_count > 3) 922 Msg.Data[1] = BW_ISDBT_13SEG; 923 else if (c->isdbt_sb_segment_count > 1) 924 Msg.Data[1] = BW_ISDBT_3SEG; 925 } else if (type == SMS_PELE || type == SMS_RIO) 926 Msg.Data[1] = BW_ISDBT_13SEG; 927 928 c->bandwidth_hz = 6000000; 929 930 sms_info("%s: freq %d segwidth %d segindex %d\n", __func__, 931 c->frequency, c->isdbt_sb_segment_count, 932 c->isdbt_sb_segment_idx); 933 934 /* Disable LNA, if any. An error is returned if no LNA is present */ 935 ret = sms_board_lna_control(client->coredev, 0); 936 if (ret == 0) { 937 fe_status_t status; 938 939 /* tune with LNA off at first */ 940 ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), 941 &client->tune_done); 942 943 smsdvb_read_status(fe, &status); 944 945 if (status & FE_HAS_LOCK) 946 return ret; 947 948 /* previous tune didn't lock - enable LNA and tune again */ 949 sms_board_lna_control(client->coredev, 1); 950 } 951 return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg), 952 &client->tune_done); 953} 954 955static int smsdvb_set_frontend(struct dvb_frontend *fe) 956{ 957 struct dtv_frontend_properties *c = &fe->dtv_property_cache; 958 struct smsdvb_client_t *client = 959 container_of(fe, struct smsdvb_client_t, frontend); 960 struct smscore_device_t *coredev = client->coredev; 961 962 smsdvb_stats_not_ready(fe); 963 c->strength.stat[0].uvalue = 0; 964 c->cnr.stat[0].uvalue = 0; 965 966 switch (smscore_get_device_mode(coredev)) { 967 case DEVICE_MODE_DVBT: 968 case DEVICE_MODE_DVBT_BDA: 969 return smsdvb_dvbt_set_frontend(fe); 970 case DEVICE_MODE_ISDBT: 971 case DEVICE_MODE_ISDBT_BDA: 972 return smsdvb_isdbt_set_frontend(fe); 973 default: 974 return -EINVAL; 975 } 976} 977 978/* Nothing to do here, as stats are automatically updated */ 979static int smsdvb_get_frontend(struct dvb_frontend *fe) 980{ 981 return 0; 982} 983 984static int smsdvb_init(struct dvb_frontend *fe) 985{ 986 struct smsdvb_client_t *client = 987 container_of(fe, struct smsdvb_client_t, frontend); 988 989 sms_board_power(client->coredev, 1); 990 991 sms_board_dvb3_event(client, DVB3_EVENT_INIT); 992 return 0; 993} 994 995static int smsdvb_sleep(struct dvb_frontend *fe) 996{ 997 struct smsdvb_client_t *client = 998 container_of(fe, struct smsdvb_client_t, frontend); 999 1000 sms_board_led_feedback(client->coredev, SMS_LED_OFF); 1001 sms_board_power(client->coredev, 0); 1002 1003 sms_board_dvb3_event(client, DVB3_EVENT_SLEEP); 1004 1005 return 0; 1006} 1007 1008static void smsdvb_release(struct dvb_frontend *fe) 1009{ 1010 /* do nothing */ 1011} 1012 1013static struct dvb_frontend_ops smsdvb_fe_ops = { 1014 .info = { 1015 .name = "Siano Mobile Digital MDTV Receiver", 1016 .frequency_min = 44250000, 1017 .frequency_max = 867250000, 1018 .frequency_stepsize = 250000, 1019 .caps = FE_CAN_INVERSION_AUTO | 1020 FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | 1021 FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | 1022 FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | 1023 FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | 1024 FE_CAN_GUARD_INTERVAL_AUTO | 1025 FE_CAN_RECOVER | 1026 FE_CAN_HIERARCHY_AUTO, 1027 }, 1028 1029 .release = smsdvb_release, 1030 1031 .set_frontend = smsdvb_set_frontend, 1032 .get_frontend = smsdvb_get_frontend, 1033 .get_tune_settings = smsdvb_get_tune_settings, 1034 1035 .read_status = smsdvb_read_status, 1036 .read_ber = smsdvb_read_ber, 1037 .read_signal_strength = smsdvb_read_signal_strength, 1038 .read_snr = smsdvb_read_snr, 1039 .read_ucblocks = smsdvb_read_ucblocks, 1040 1041 .init = smsdvb_init, 1042 .sleep = smsdvb_sleep, 1043}; 1044 1045static int smsdvb_hotplug(struct smscore_device_t *coredev, 1046 struct device *device, int arrival) 1047{ 1048 struct smsclient_params_t params; 1049 struct smsdvb_client_t *client; 1050 int rc; 1051 1052 /* device removal handled by onremove callback */ 1053 if (!arrival) 1054 return 0; 1055 client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL); 1056 if (!client) { 1057 sms_err("kmalloc() failed"); 1058 return -ENOMEM; 1059 } 1060 1061 /* register dvb adapter */ 1062 rc = dvb_register_adapter(&client->adapter, 1063 sms_get_board( 1064 smscore_get_board_id(coredev))->name, 1065 THIS_MODULE, device, adapter_nr); 1066 if (rc < 0) { 1067 sms_err("dvb_register_adapter() failed %d", rc); 1068 goto adapter_error; 1069 } 1070 1071 /* init dvb demux */ 1072 client->demux.dmx.capabilities = DMX_TS_FILTERING; 1073 client->demux.filternum = 32; /* todo: nova ??? */ 1074 client->demux.feednum = 32; 1075 client->demux.start_feed = smsdvb_start_feed; 1076 client->demux.stop_feed = smsdvb_stop_feed; 1077 1078 rc = dvb_dmx_init(&client->demux); 1079 if (rc < 0) { 1080 sms_err("dvb_dmx_init failed %d", rc); 1081 goto dvbdmx_error; 1082 } 1083 1084 /* init dmxdev */ 1085 client->dmxdev.filternum = 32; 1086 client->dmxdev.demux = &client->demux.dmx; 1087 client->dmxdev.capabilities = 0; 1088 1089 rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter); 1090 if (rc < 0) { 1091 sms_err("dvb_dmxdev_init failed %d", rc); 1092 goto dmxdev_error; 1093 } 1094 1095 /* init and register frontend */ 1096 memcpy(&client->frontend.ops, &smsdvb_fe_ops, 1097 sizeof(struct dvb_frontend_ops)); 1098 1099 switch (smscore_get_device_mode(coredev)) { 1100 case DEVICE_MODE_DVBT: 1101 case DEVICE_MODE_DVBT_BDA: 1102 client->frontend.ops.delsys[0] = SYS_DVBT; 1103 break; 1104 case DEVICE_MODE_ISDBT: 1105 case DEVICE_MODE_ISDBT_BDA: 1106 client->frontend.ops.delsys[0] = SYS_ISDBT; 1107 break; 1108 } 1109 1110 rc = dvb_register_frontend(&client->adapter, &client->frontend); 1111 if (rc < 0) { 1112 sms_err("frontend registration failed %d", rc); 1113 goto frontend_error; 1114 } 1115 1116 params.initial_id = 1; 1117 params.data_type = MSG_SMS_DVBT_BDA_DATA; 1118 params.onresponse_handler = smsdvb_onresponse; 1119 params.onremove_handler = smsdvb_onremove; 1120 params.context = client; 1121 1122 rc = smscore_register_client(coredev, ¶ms, &client->smsclient); 1123 if (rc < 0) { 1124 sms_err("smscore_register_client() failed %d", rc); 1125 goto client_error; 1126 } 1127 1128 client->coredev = coredev; 1129 1130 init_completion(&client->tune_done); 1131 init_completion(&client->stats_done); 1132 1133 kmutex_lock(&g_smsdvb_clientslock); 1134 1135 list_add(&client->entry, &g_smsdvb_clients); 1136 1137 kmutex_unlock(&g_smsdvb_clientslock); 1138 1139 client->event_fe_state = -1; 1140 client->event_unc_state = -1; 1141 sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG); 1142 1143 sms_info("success"); 1144 sms_board_setup(coredev); 1145 1146 if (smsdvb_debugfs_create(client) < 0) 1147 sms_info("failed to create debugfs node"); 1148 1149 return 0; 1150 1151client_error: 1152 dvb_unregister_frontend(&client->frontend); 1153 1154frontend_error: 1155 dvb_dmxdev_release(&client->dmxdev); 1156 1157dmxdev_error: 1158 dvb_dmx_release(&client->demux); 1159 1160dvbdmx_error: 1161 dvb_unregister_adapter(&client->adapter); 1162 1163adapter_error: 1164 kfree(client); 1165 return rc; 1166} 1167 1168static int __init smsdvb_module_init(void) 1169{ 1170 int rc; 1171 1172 INIT_LIST_HEAD(&g_smsdvb_clients); 1173 kmutex_init(&g_smsdvb_clientslock); 1174 1175 smsdvb_debugfs_register(); 1176 1177 rc = smscore_register_hotplug(smsdvb_hotplug); 1178 1179 sms_debug(""); 1180 1181 return rc; 1182} 1183 1184static void __exit smsdvb_module_exit(void) 1185{ 1186 smscore_unregister_hotplug(smsdvb_hotplug); 1187 1188 kmutex_lock(&g_smsdvb_clientslock); 1189 1190 while (!list_empty(&g_smsdvb_clients)) 1191 smsdvb_unregister_client((struct smsdvb_client_t *)g_smsdvb_clients.next); 1192 1193 smsdvb_debugfs_unregister(); 1194 1195 kmutex_unlock(&g_smsdvb_clientslock); 1196} 1197 1198module_init(smsdvb_module_init); 1199module_exit(smsdvb_module_exit); 1200 1201MODULE_DESCRIPTION("SMS DVB subsystem adaptation module"); 1202MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)"); 1203MODULE_LICENSE("GPL"); 1204