drivers/media/dvb/siano/smsdvb.c

   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
  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 "smsendian.h"
  33 #include "sms-cards.h"
  34
  35 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
  36
  37 struct smsdvb_client_t {
  38         struct list_head entry;
  39
  40         struct smscore_device_t *coredev;
  41         struct smscore_client_t *smsclient;
  42
  43         struct dvb_adapter      adapter;
  44         struct dvb_demux        demux;
  45         struct dmxdev           dmxdev;
  46         struct dvb_frontend     frontend;
  47
  48         fe_status_t             fe_status;
  49
  50         struct completion       tune_done;
  51
  52         /* todo: save freq/band instead whole struct */
  53         struct dtv_frontend_properties fe_params;
  54
  55         struct SMSHOSTLIB_STATISTICS_DVB_S sms_stat_dvb;
  56         int event_fe_state;
  57         int event_unc_state;
  58 };
  59
  60 static struct list_head g_smsdvb_clients;
  61 static struct mutex g_smsdvb_clientslock;
  62
  63 static int sms_dbg;
  64 module_param_named(debug, sms_dbg, int, 0644);
  65 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
  66
  67 /* Events that may come from DVB v3 adapter */
  68 static void sms_board_dvb3_event(struct smsdvb_client_t *client,
  69                 enum SMS_DVB3_EVENTS event) {
  70
  71         struct smscore_device_t *coredev = client->coredev;
  72         switch (event) {
  73         case DVB3_EVENT_INIT:
  74                 sms_debug("DVB3_EVENT_INIT");
  75                 sms_board_event(coredev, BOARD_EVENT_BIND);
  76                 break;
  77         case DVB3_EVENT_SLEEP:
  78                 sms_debug("DVB3_EVENT_SLEEP");
  79                 sms_board_event(coredev, BOARD_EVENT_POWER_SUSPEND);
  80                 break;
  81         case DVB3_EVENT_HOTPLUG:
  82                 sms_debug("DVB3_EVENT_HOTPLUG");
  83                 sms_board_event(coredev, BOARD_EVENT_POWER_INIT);
  84                 break;
  85         case DVB3_EVENT_FE_LOCK:
  86                 if (client->event_fe_state != DVB3_EVENT_FE_LOCK) {
  87                         client->event_fe_state = DVB3_EVENT_FE_LOCK;
  88                         sms_debug("DVB3_EVENT_FE_LOCK");
  89                         sms_board_event(coredev, BOARD_EVENT_FE_LOCK);
  90                 }
  91                 break;
  92         case DVB3_EVENT_FE_UNLOCK:
  93                 if (client->event_fe_state != DVB3_EVENT_FE_UNLOCK) {
  94                         client->event_fe_state = DVB3_EVENT_FE_UNLOCK;
  95                         sms_debug("DVB3_EVENT_FE_UNLOCK");
  96                         sms_board_event(coredev, BOARD_EVENT_FE_UNLOCK);
  97                 }
  98                 break;
  99         case DVB3_EVENT_UNC_OK:
 100                 if (client->event_unc_state != DVB3_EVENT_UNC_OK) {
 101                         client->event_unc_state = DVB3_EVENT_UNC_OK;
 102                         sms_debug("DVB3_EVENT_UNC_OK");
 103                         sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_OK);
 104                 }
 105                 break;
 106         case DVB3_EVENT_UNC_ERR:
 107                 if (client->event_unc_state != DVB3_EVENT_UNC_ERR) {
 108                         client->event_unc_state = DVB3_EVENT_UNC_ERR;
 109                         sms_debug("DVB3_EVENT_UNC_ERR");
 110                         sms_board_event(coredev, BOARD_EVENT_MULTIPLEX_ERRORS);
 111                 }
 112                 break;
 113
 114         default:
 115                 sms_err("Unknown dvb3 api event");
 116                 break;
 117         }
 118 }
 119
 120
 121 static void smsdvb_update_dvb_stats(struct RECEPTION_STATISTICS_S *pReceptionData,
 122                                    struct SMSHOSTLIB_STATISTICS_ST *p)
 123 {
 124         if (sms_dbg & 2) {
 125                 printk(KERN_DEBUG "Reserved = %d", p->Reserved);
 126                 printk(KERN_DEBUG "IsRfLocked = %d", p->IsRfLocked);
 127                 printk(KERN_DEBUG "IsDemodLocked = %d", p->IsDemodLocked);
 128                 printk(KERN_DEBUG "IsExternalLNAOn = %d", p->IsExternalLNAOn);
 129                 printk(KERN_DEBUG "SNR = %d", p->SNR);
 130                 printk(KERN_DEBUG "BER = %d", p->BER);
 131                 printk(KERN_DEBUG "FIB_CRC = %d", p->FIB_CRC);
 132                 printk(KERN_DEBUG "TS_PER = %d", p->TS_PER);
 133                 printk(KERN_DEBUG "MFER = %d", p->MFER);
 134                 printk(KERN_DEBUG "RSSI = %d", p->RSSI);
 135                 printk(KERN_DEBUG "InBandPwr = %d", p->InBandPwr);
 136                 printk(KERN_DEBUG "CarrierOffset = %d", p->CarrierOffset);
 137                 printk(KERN_DEBUG "Frequency = %d", p->Frequency);
 138                 printk(KERN_DEBUG "Bandwidth = %d", p->Bandwidth);
 139                 printk(KERN_DEBUG "TransmissionMode = %d", p->TransmissionMode);
 140                 printk(KERN_DEBUG "ModemState = %d", p->ModemState);
 141                 printk(KERN_DEBUG "GuardInterval = %d", p->GuardInterval);
 142                 printk(KERN_DEBUG "CodeRate = %d", p->CodeRate);
 143                 printk(KERN_DEBUG "LPCodeRate = %d", p->LPCodeRate);
 144                 printk(KERN_DEBUG "Hierarchy = %d", p->Hierarchy);
 145                 printk(KERN_DEBUG "Constellation = %d", p->Constellation);
 146                 printk(KERN_DEBUG "BurstSize = %d", p->BurstSize);
 147                 printk(KERN_DEBUG "BurstDuration = %d", p->BurstDuration);
 148                 printk(KERN_DEBUG "BurstCycleTime = %d", p->BurstCycleTime);
 149                 printk(KERN_DEBUG "CalculatedBurstCycleTime = %d", p->CalculatedBurstCycleTime);
 150                 printk(KERN_DEBUG "NumOfRows = %d", p->NumOfRows);
 151                 printk(KERN_DEBUG "NumOfPaddCols = %d", p->NumOfPaddCols);
 152                 printk(KERN_DEBUG "NumOfPunctCols = %d", p->NumOfPunctCols);
 153                 printk(KERN_DEBUG "ErrorTSPackets = %d", p->ErrorTSPackets);
 154                 printk(KERN_DEBUG "TotalTSPackets = %d", p->TotalTSPackets);
 155                 printk(KERN_DEBUG "NumOfValidMpeTlbs = %d", p->NumOfValidMpeTlbs);
 156                 printk(KERN_DEBUG "NumOfInvalidMpeTlbs = %d", p->NumOfInvalidMpeTlbs);
 157                 printk(KERN_DEBUG "NumOfCorrectedMpeTlbs = %d", p->NumOfCorrectedMpeTlbs);
 158                 printk(KERN_DEBUG "BERErrorCount = %d", p->BERErrorCount);
 159                 printk(KERN_DEBUG "BERBitCount = %d", p->BERBitCount);
 160                 printk(KERN_DEBUG "SmsToHostTxErrors = %d", p->SmsToHostTxErrors);
 161                 printk(KERN_DEBUG "PreBER = %d", p->PreBER);
 162                 printk(KERN_DEBUG "CellId = %d", p->CellId);
 163                 printk(KERN_DEBUG "DvbhSrvIndHP = %d", p->DvbhSrvIndHP);
 164                 printk(KERN_DEBUG "DvbhSrvIndLP = %d", p->DvbhSrvIndLP);
 165                 printk(KERN_DEBUG "NumMPEReceived = %d", p->NumMPEReceived);
 166         }
 167
 168         pReceptionData->IsDemodLocked = p->IsDemodLocked;
 169
 170         pReceptionData->SNR = p->SNR;
 171         pReceptionData->BER = p->BER;
 172         pReceptionData->BERErrorCount = p->BERErrorCount;
 173         pReceptionData->InBandPwr = p->InBandPwr;
 174         pReceptionData->ErrorTSPackets = p->ErrorTSPackets;
 175 };
 176
 177
 178 static void smsdvb_update_isdbt_stats(struct RECEPTION_STATISTICS_S *pReceptionData,
 179                                     struct SMSHOSTLIB_STATISTICS_ISDBT_ST *p)
 180 {
 181         int i;
 182
 183         if (sms_dbg & 2) {
 184                 printk(KERN_DEBUG "IsRfLocked = %d", p->IsRfLocked);
 185                 printk(KERN_DEBUG "IsDemodLocked = %d", p->IsDemodLocked);
 186                 printk(KERN_DEBUG "IsExternalLNAOn = %d", p->IsExternalLNAOn);
 187                 printk(KERN_DEBUG "SNR = %d", p->SNR);
 188                 printk(KERN_DEBUG "RSSI = %d", p->RSSI);
 189                 printk(KERN_DEBUG "InBandPwr = %d", p->InBandPwr);
 190                 printk(KERN_DEBUG "CarrierOffset = %d", p->CarrierOffset);
 191                 printk(KERN_DEBUG "Frequency = %d", p->Frequency);
 192                 printk(KERN_DEBUG "Bandwidth = %d", p->Bandwidth);
 193                 printk(KERN_DEBUG "TransmissionMode = %d", p->TransmissionMode);
 194                 printk(KERN_DEBUG "ModemState = %d", p->ModemState);
 195                 printk(KERN_DEBUG "GuardInterval = %d", p->GuardInterval);
 196                 printk(KERN_DEBUG "SystemType = %d", p->SystemType);
 197                 printk(KERN_DEBUG "PartialReception = %d", p->PartialReception);
 198                 printk(KERN_DEBUG "NumOfLayers = %d", p->NumOfLayers);
 199                 printk(KERN_DEBUG "SmsToHostTxErrors = %d", p->SmsToHostTxErrors);
 200
 201                 for (i = 0; i < 3; i++) {
 202                         printk(KERN_DEBUG "%d: CodeRate = %d", i, p->LayerInfo[i].CodeRate);
 203                         printk(KERN_DEBUG "%d: Constellation = %d", i, p->LayerInfo[i].Constellation);
 204                         printk(KERN_DEBUG "%d: BER = %d", i, p->LayerInfo[i].BER);
 205                         printk(KERN_DEBUG "%d: BERErrorCount = %d", i, p->LayerInfo[i].BERErrorCount);
 206                         printk(KERN_DEBUG "%d: BERBitCount = %d", i, p->LayerInfo[i].BERBitCount);
 207                         printk(KERN_DEBUG "%d: PreBER = %d", i, p->LayerInfo[i].PreBER);
 208                         printk(KERN_DEBUG "%d: TS_PER = %d", i, p->LayerInfo[i].TS_PER);
 209                         printk(KERN_DEBUG "%d: ErrorTSPackets = %d", i, p->LayerInfo[i].ErrorTSPackets);
 210                         printk(KERN_DEBUG "%d: TotalTSPackets = %d", i, p->LayerInfo[i].TotalTSPackets);
 211                         printk(KERN_DEBUG "%d: TILdepthI = %d", i, p->LayerInfo[i].TILdepthI);
 212                         printk(KERN_DEBUG "%d: NumberOfSegments = %d", i, p->LayerInfo[i].NumberOfSegments);
 213                         printk(KERN_DEBUG "%d: TMCCErrors = %d", i, p->LayerInfo[i].TMCCErrors);
 214                 }
 215         }
 216
 217         pReceptionData->IsDemodLocked = p->IsDemodLocked;
 218
 219         pReceptionData->SNR = p->SNR;
 220         pReceptionData->InBandPwr = p->InBandPwr;
 221
 222         pReceptionData->ErrorTSPackets = 0;
 223         pReceptionData->BER = 0;
 224         pReceptionData->BERErrorCount = 0;
 225         for (i = 0; i < 3; i++) {
 226                 pReceptionData->BER += p->LayerInfo[i].BER;
 227                 pReceptionData->BERErrorCount += p->LayerInfo[i].BERErrorCount;
 228                 pReceptionData->ErrorTSPackets += p->LayerInfo[i].ErrorTSPackets;
 229         }
 230 }
 231
 232 static int smsdvb_onresponse(void *context, struct smscore_buffer_t *cb)
 233 {
 234         struct smsdvb_client_t *client = (struct smsdvb_client_t *) context;
 235         struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) (((u8 *) cb->p)
 236                         + cb->offset);
 237         u32 *pMsgData = (u32 *) phdr + 1;
 238         /*u32 MsgDataLen = phdr->msgLength - sizeof(struct SmsMsgHdr_ST);*/
 239         bool is_status_update = false;
 240
 241         smsendian_handle_rx_message((struct SmsMsgData_ST *) phdr);
 242
 243         switch (phdr->msgType) {
 244         case MSG_SMS_DVBT_BDA_DATA:
 245                 dvb_dmx_swfilter(&client->demux, (u8 *)(phdr + 1),
 246                                  cb->size - sizeof(struct SmsMsgHdr_ST));
 247                 break;
 248
 249         case MSG_SMS_RF_TUNE_RES:
 250         case MSG_SMS_ISDBT_TUNE_RES:
 251                 complete(&client->tune_done);
 252                 break;
 253
 254         case MSG_SMS_SIGNAL_DETECTED_IND:
 255                 sms_info("MSG_SMS_SIGNAL_DETECTED_IND");
 256                 client->sms_stat_dvb.TransmissionData.IsDemodLocked = true;
 257                 is_status_update = true;
 258                 break;
 259
 260         case MSG_SMS_NO_SIGNAL_IND:
 261                 sms_info("MSG_SMS_NO_SIGNAL_IND");
 262                 client->sms_stat_dvb.TransmissionData.IsDemodLocked = false;
 263                 is_status_update = true;
 264                 break;
 265
 266         case MSG_SMS_TRANSMISSION_IND: {
 267                 sms_info("MSG_SMS_TRANSMISSION_IND");
 268
 269                 pMsgData++;
 270                 memcpy(&client->sms_stat_dvb.TransmissionData, pMsgData,
 271                                 sizeof(struct TRANSMISSION_STATISTICS_S));
 272
 273                 /* Mo need to correct guard interval
 274                  * (as opposed to old statistics message).
 275                  */
 276                 CORRECT_STAT_BANDWIDTH(client->sms_stat_dvb.TransmissionData);
 277                 CORRECT_STAT_TRANSMISSON_MODE(
 278                                 client->sms_stat_dvb.TransmissionData);
 279                 is_status_update = true;
 280                 break;
 281         }
 282         case MSG_SMS_HO_PER_SLICES_IND: {
 283                 struct RECEPTION_STATISTICS_S *pReceptionData =
 284                                 &client->sms_stat_dvb.ReceptionData;
 285                 struct SRVM_SIGNAL_STATUS_S SignalStatusData;
 286
 287                 /*sms_info("MSG_SMS_HO_PER_SLICES_IND");*/
 288                 pMsgData++;
 289                 SignalStatusData.result = pMsgData[0];
 290                 SignalStatusData.snr = pMsgData[1];
 291                 SignalStatusData.inBandPower = (s32) pMsgData[2];
 292                 SignalStatusData.tsPackets = pMsgData[3];
 293                 SignalStatusData.etsPackets = pMsgData[4];
 294                 SignalStatusData.constellation = pMsgData[5];
 295                 SignalStatusData.hpCode = pMsgData[6];
 296                 SignalStatusData.tpsSrvIndLP = pMsgData[7] & 0x03;
 297                 SignalStatusData.tpsSrvIndHP = pMsgData[8] & 0x03;
 298                 SignalStatusData.cellId = pMsgData[9] & 0xFFFF;
 299                 SignalStatusData.reason = pMsgData[10];
 300                 SignalStatusData.requestId = pMsgData[11];
 301                 pReceptionData->IsRfLocked = pMsgData[16];
 302                 pReceptionData->IsDemodLocked = pMsgData[17];
 303                 pReceptionData->ModemState = pMsgData[12];
 304                 pReceptionData->SNR = pMsgData[1];
 305                 pReceptionData->BER = pMsgData[13];
 306                 pReceptionData->RSSI = pMsgData[14];
 307                 CORRECT_STAT_RSSI(client->sms_stat_dvb.ReceptionData);
 308
 309                 pReceptionData->InBandPwr = (s32) pMsgData[2];
 310                 pReceptionData->CarrierOffset = (s32) pMsgData[15];
 311                 pReceptionData->TotalTSPackets = pMsgData[3];
 312                 pReceptionData->ErrorTSPackets = pMsgData[4];
 313
 314                 /* TS PER */
 315                 if ((SignalStatusData.tsPackets + SignalStatusData.etsPackets)
 316                                 > 0) {
 317                         pReceptionData->TS_PER = (SignalStatusData.etsPackets
 318                                         * 100) / (SignalStatusData.tsPackets
 319                                         + SignalStatusData.etsPackets);
 320                 } else {
 321                         pReceptionData->TS_PER = 0;
 322                 }
 323
 324                 pReceptionData->BERBitCount = pMsgData[18];
 325                 pReceptionData->BERErrorCount = pMsgData[19];
 326
 327                 pReceptionData->MRC_SNR = pMsgData[20];
 328                 pReceptionData->MRC_InBandPwr = pMsgData[21];
 329                 pReceptionData->MRC_RSSI = pMsgData[22];
 330
 331                 is_status_update = true;
 332                 break;
 333         }
 334         case MSG_SMS_GET_STATISTICS_RES: {
 335                 union {
 336                         struct SMSHOSTLIB_STATISTICS_ISDBT_ST  isdbt;
 337                         struct SmsMsgStatisticsInfo_ST         dvb;
 338                 } *p = (void *) (phdr + 1);
 339                 struct RECEPTION_STATISTICS_S *pReceptionData =
 340                                 &client->sms_stat_dvb.ReceptionData;
 341
 342                 sms_info("MSG_SMS_GET_STATISTICS_RES");
 343
 344                 is_status_update = true;
 345
 346                 switch (smscore_get_device_mode(client->coredev)) {
 347                 case DEVICE_MODE_ISDBT:
 348                 case DEVICE_MODE_ISDBT_BDA:
 349                         smsdvb_update_isdbt_stats(pReceptionData, &p->isdbt);
 350                         break;
 351                 default:
 352                         smsdvb_update_dvb_stats(pReceptionData, &p->dvb.Stat);
 353                 }
 354                 if (!pReceptionData->IsDemodLocked) {
 355                         pReceptionData->SNR = 0;
 356                         pReceptionData->BER = 0;
 357                         pReceptionData->BERErrorCount = 0;
 358                         pReceptionData->InBandPwr = 0;
 359                         pReceptionData->ErrorTSPackets = 0;
 360                 }
 361
 362                 complete(&client->tune_done);
 363                 break;
 364         }
 365         default:
 366                 sms_info("Unhandled message %d", phdr->msgType);
 367
 368         }
 369         smscore_putbuffer(client->coredev, cb);
 370
 371         if (is_status_update) {
 372                 if (client->sms_stat_dvb.ReceptionData.IsDemodLocked) {
 373                         client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER
 374                                 | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK;
 375                         sms_board_dvb3_event(client, DVB3_EVENT_FE_LOCK);
 376                         if (client->sms_stat_dvb.ReceptionData.ErrorTSPackets
 377                                         == 0)
 378                                 sms_board_dvb3_event(client, DVB3_EVENT_UNC_OK);
 379                         else
 380                                 sms_board_dvb3_event(client,
 381                                                 DVB3_EVENT_UNC_ERR);
 382
 383                 } else {
 384                         if (client->sms_stat_dvb.ReceptionData.IsRfLocked)
 385                                 client->fe_status = FE_HAS_SIGNAL | FE_HAS_CARRIER;
 386                         else
 387                                 client->fe_status = 0;
 388                         sms_board_dvb3_event(client, DVB3_EVENT_FE_UNLOCK);
 389                 }
 390         }
 391
 392         return 0;
 393 }
 394
 395 static void smsdvb_unregister_client(struct smsdvb_client_t *client)
 396 {
 397         /* must be called under clientslock */
 398
 399         list_del(&client->entry);
 400
 401         smscore_unregister_client(client->smsclient);
 402         dvb_unregister_frontend(&client->frontend);
 403         dvb_dmxdev_release(&client->dmxdev);
 404         dvb_dmx_release(&client->demux);
 405         dvb_unregister_adapter(&client->adapter);
 406         kfree(client);
 407 }
 408
 409 static void smsdvb_onremove(void *context)
 410 {
 411         kmutex_lock(&g_smsdvb_clientslock);
 412
 413         smsdvb_unregister_client((struct smsdvb_client_t *) context);
 414
 415         kmutex_unlock(&g_smsdvb_clientslock);
 416 }
 417
 418 static int smsdvb_start_feed(struct dvb_demux_feed *feed)
 419 {
 420         struct smsdvb_client_t *client =
 421                 container_of(feed->demux, struct smsdvb_client_t, demux);
 422         struct SmsMsgData_ST PidMsg;
 423
 424         sms_debug("add pid %d(%x)",
 425                   feed->pid, feed->pid);
 426
 427         PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
 428         PidMsg.xMsgHeader.msgDstId = HIF_TASK;
 429         PidMsg.xMsgHeader.msgFlags = 0;
 430         PidMsg.xMsgHeader.msgType  = MSG_SMS_ADD_PID_FILTER_REQ;
 431         PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
 432         PidMsg.msgData[0] = feed->pid;
 433
 434         smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
 435         return smsclient_sendrequest(client->smsclient,
 436                                      &PidMsg, sizeof(PidMsg));
 437 }
 438
 439 static int smsdvb_stop_feed(struct dvb_demux_feed *feed)
 440 {
 441         struct smsdvb_client_t *client =
 442                 container_of(feed->demux, struct smsdvb_client_t, demux);
 443         struct SmsMsgData_ST PidMsg;
 444
 445         sms_debug("remove pid %d(%x)",
 446                   feed->pid, feed->pid);
 447
 448         PidMsg.xMsgHeader.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
 449         PidMsg.xMsgHeader.msgDstId = HIF_TASK;
 450         PidMsg.xMsgHeader.msgFlags = 0;
 451         PidMsg.xMsgHeader.msgType  = MSG_SMS_REMOVE_PID_FILTER_REQ;
 452         PidMsg.xMsgHeader.msgLength = sizeof(PidMsg);
 453         PidMsg.msgData[0] = feed->pid;
 454
 455         smsendian_handle_tx_message((struct SmsMsgHdr_ST *)&PidMsg);
 456         return smsclient_sendrequest(client->smsclient,
 457                                      &PidMsg, sizeof(PidMsg));
 458 }
 459
 460 static int smsdvb_sendrequest_and_wait(struct smsdvb_client_t *client,
 461                                         void *buffer, size_t size,
 462                                         struct completion *completion)
 463 {
 464         int rc;
 465
 466         smsendian_handle_tx_message((struct SmsMsgHdr_ST *)buffer);
 467         rc = smsclient_sendrequest(client->smsclient, buffer, size);
 468         if (rc < 0)
 469                 return rc;
 470
 471         return wait_for_completion_timeout(completion,
 472                                            msecs_to_jiffies(2000)) ?
 473                                                 0 : -ETIME;
 474 }
 475
 476 static int smsdvb_send_statistics_request(struct smsdvb_client_t *client)
 477 {
 478         int rc;
 479         struct SmsMsgHdr_ST Msg = { MSG_SMS_GET_STATISTICS_REQ,
 480                                     DVBT_BDA_CONTROL_MSG_ID,
 481                                     HIF_TASK,
 482                                     sizeof(struct SmsMsgHdr_ST), 0 };
 483
 484         rc = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
 485                                           &client->tune_done);
 486
 487         return rc;
 488 }
 489
 490 static inline int led_feedback(struct smsdvb_client_t *client)
 491 {
 492         if (client->fe_status & FE_HAS_LOCK)
 493                 return sms_board_led_feedback(client->coredev,
 494                         (client->sms_stat_dvb.ReceptionData.BER
 495                         == 0) ? SMS_LED_HI : SMS_LED_LO);
 496         else
 497                 return sms_board_led_feedback(client->coredev, SMS_LED_OFF);
 498 }
 499
 500 static int smsdvb_read_status(struct dvb_frontend *fe, fe_status_t *stat)
 501 {
 502         int rc;
 503         struct smsdvb_client_t *client;
 504         client = container_of(fe, struct smsdvb_client_t, frontend);
 505
 506         rc = smsdvb_send_statistics_request(client);
 507
 508         *stat = client->fe_status;
 509
 510         led_feedback(client);
 511
 512         return rc;
 513 }
 514
 515 static int smsdvb_read_ber(struct dvb_frontend *fe, u32 *ber)
 516 {
 517         int rc;
 518         struct smsdvb_client_t *client;
 519         client = container_of(fe, struct smsdvb_client_t, frontend);
 520
 521         rc = smsdvb_send_statistics_request(client);
 522
 523         *ber = client->sms_stat_dvb.ReceptionData.BER;
 524
 525         led_feedback(client);
 526
 527         return rc;
 528 }
 529
 530 static int smsdvb_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
 531 {
 532         int rc;
 533
 534         struct smsdvb_client_t *client;
 535         client = container_of(fe, struct smsdvb_client_t, frontend);
 536
 537         rc = smsdvb_send_statistics_request(client);
 538
 539         if (client->sms_stat_dvb.ReceptionData.InBandPwr < -95)
 540                 *strength = 0;
 541                 else if (client->sms_stat_dvb.ReceptionData.InBandPwr > -29)
 542                         *strength = 100;
 543                 else
 544                         *strength =
 545                                 (client->sms_stat_dvb.ReceptionData.InBandPwr
 546                                 + 95) * 3 / 2;
 547
 548         led_feedback(client);
 549
 550         return rc;
 551 }
 552
 553 static int smsdvb_read_snr(struct dvb_frontend *fe, u16 *snr)
 554 {
 555         int rc;
 556         struct smsdvb_client_t *client;
 557         client = container_of(fe, struct smsdvb_client_t, frontend);
 558
 559         rc = smsdvb_send_statistics_request(client);
 560
 561         *snr = client->sms_stat_dvb.ReceptionData.SNR;
 562
 563         led_feedback(client);
 564
 565         return rc;
 566 }
 567
 568 static int smsdvb_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
 569 {
 570         int rc;
 571         struct smsdvb_client_t *client;
 572         client = container_of(fe, struct smsdvb_client_t, frontend);
 573
 574         rc = smsdvb_send_statistics_request(client);
 575
 576         *ucblocks = client->sms_stat_dvb.ReceptionData.ErrorTSPackets;
 577
 578         led_feedback(client);
 579
 580         return rc;
 581 }
 582
 583 static int smsdvb_get_tune_settings(struct dvb_frontend *fe,
 584                                     struct dvb_frontend_tune_settings *tune)
 585 {
 586         sms_debug("");
 587
 588         tune->min_delay_ms = 400;
 589         tune->step_size = 250000;
 590         tune->max_drift = 0;
 591         return 0;
 592 }
 593
 594 static int smsdvb_dvbt_set_frontend(struct dvb_frontend *fe)
 595 {
 596         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 597         struct smsdvb_client_t *client =
 598                 container_of(fe, struct smsdvb_client_t, frontend);
 599
 600         struct {
 601                 struct SmsMsgHdr_ST     Msg;
 602                 u32             Data[3];
 603         } Msg;
 604
 605         int ret;
 606
 607         client->fe_status = FE_HAS_SIGNAL;
 608         client->event_fe_state = -1;
 609         client->event_unc_state = -1;
 610         fe->dtv_property_cache.delivery_system = SYS_DVBT;
 611
 612         Msg.Msg.msgSrcId = DVBT_BDA_CONTROL_MSG_ID;
 613         Msg.Msg.msgDstId = HIF_TASK;
 614         Msg.Msg.msgFlags = 0;
 615         Msg.Msg.msgType = MSG_SMS_RF_TUNE_REQ;
 616         Msg.Msg.msgLength = sizeof(Msg);
 617         Msg.Data[0] = c->frequency;
 618         Msg.Data[2] = 12000000;
 619
 620         sms_info("%s: freq %d band %d", __func__, c->frequency,
 621                  c->bandwidth_hz);
 622
 623         switch (c->bandwidth_hz / 1000000) {
 624         case 8:
 625                 Msg.Data[1] = BW_8_MHZ;
 626                 break;
 627         case 7:
 628                 Msg.Data[1] = BW_7_MHZ;
 629                 break;
 630         case 6:
 631                 Msg.Data[1] = BW_6_MHZ;
 632                 break;
 633         case 0:
 634                 return -EOPNOTSUPP;
 635         default:
 636                 return -EINVAL;
 637         }
 638         /* Disable LNA, if any. An error is returned if no LNA is present */
 639         ret = sms_board_lna_control(client->coredev, 0);
 640         if (ret == 0) {
 641                 fe_status_t status;
 642
 643                 /* tune with LNA off at first */
 644                 ret = smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
 645                                                   &client->tune_done);
 646
 647                 smsdvb_read_status(fe, &status);
 648
 649                 if (status & FE_HAS_LOCK)
 650                         return ret;
 651
 652                 /* previous tune didn't lock - enable LNA and tune again */
 653                 sms_board_lna_control(client->coredev, 1);
 654         }
 655
 656         return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
 657                                            &client->tune_done);
 658 }
 659
 660 static int smsdvb_isdbt_set_frontend(struct dvb_frontend *fe)
 661 {
 662         struct dtv_frontend_properties *c = &fe->dtv_property_cache;
 663         struct smsdvb_client_t *client =
 664                 container_of(fe, struct smsdvb_client_t, frontend);
 665
 666         struct {
 667                 struct SmsMsgHdr_ST     Msg;
 668                 u32             Data[4];
 669         } Msg;
 670
 671         fe->dtv_property_cache.delivery_system = SYS_ISDBT;
 672
 673         Msg.Msg.msgSrcId  = DVBT_BDA_CONTROL_MSG_ID;
 674         Msg.Msg.msgDstId  = HIF_TASK;
 675         Msg.Msg.msgFlags  = 0;
 676         Msg.Msg.msgType   = MSG_SMS_ISDBT_TUNE_REQ;
 677         Msg.Msg.msgLength = sizeof(Msg);
 678
 679         if (c->isdbt_sb_segment_idx == -1)
 680                 c->isdbt_sb_segment_idx = 0;
 681
 682         switch (c->isdbt_sb_segment_count) {
 683         case 3:
 684                 Msg.Data[1] = BW_ISDBT_3SEG;
 685                 break;
 686         case 1:
 687                 Msg.Data[1] = BW_ISDBT_1SEG;
 688                 break;
 689         case 0: /* AUTO */
 690                 switch (c->bandwidth_hz / 1000000) {
 691                 case 8:
 692                 case 7:
 693                         c->isdbt_sb_segment_count = 3;
 694                         Msg.Data[1] = BW_ISDBT_3SEG;
 695                         break;
 696                 case 6:
 697                         c->isdbt_sb_segment_count = 1;
 698                         Msg.Data[1] = BW_ISDBT_1SEG;
 699                         break;
 700                 default: /* Assumes 6 MHZ bw */
 701                         c->isdbt_sb_segment_count = 1;
 702                         c->bandwidth_hz = 6000;
 703                         Msg.Data[1] = BW_ISDBT_1SEG;
 704                         break;
 705                 }
 706                 break;
 707         default:
 708                 sms_info("Segment count %d not supported", c->isdbt_sb_segment_count);
 709                 return -EINVAL;
 710         }
 711
 712         Msg.Data[0] = c->frequency;
 713         Msg.Data[2] = 12000000;
 714         Msg.Data[3] = c->isdbt_sb_segment_idx;
 715
 716         sms_info("%s: freq %d segwidth %d segindex %d\n", __func__,
 717                  c->frequency, c->isdbt_sb_segment_count,
 718                  c->isdbt_sb_segment_idx);
 719
 720         return smsdvb_sendrequest_and_wait(client, &Msg, sizeof(Msg),
 721                                            &client->tune_done);
 722 }
 723
 724 static int smsdvb_set_frontend(struct dvb_frontend *fe)
 725 {
 726         struct smsdvb_client_t *client =
 727                 container_of(fe, struct smsdvb_client_t, frontend);
 728         struct smscore_device_t *coredev = client->coredev;
 729
 730         switch (smscore_get_device_mode(coredev)) {
 731         case DEVICE_MODE_DVBT:
 732         case DEVICE_MODE_DVBT_BDA:
 733                 return smsdvb_dvbt_set_frontend(fe);
 734         case DEVICE_MODE_ISDBT:
 735         case DEVICE_MODE_ISDBT_BDA:
 736                 return smsdvb_isdbt_set_frontend(fe);
 737         default:
 738                 return -EINVAL;
 739         }
 740 }
 741
 742 static int smsdvb_get_frontend(struct dvb_frontend *fe)
 743 {
 744         struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
 745         struct smsdvb_client_t *client =
 746                 container_of(fe, struct smsdvb_client_t, frontend);
 747
 748         sms_debug("");
 749
 750         /* todo: */
 751         memcpy(fep, &client->fe_params,
 752                sizeof(struct dtv_frontend_properties));
 753
 754         return 0;
 755 }
 756
 757 static int smsdvb_init(struct dvb_frontend *fe)
 758 {
 759         struct smsdvb_client_t *client =
 760                 container_of(fe, struct smsdvb_client_t, frontend);
 761
 762         sms_board_power(client->coredev, 1);
 763
 764         sms_board_dvb3_event(client, DVB3_EVENT_INIT);
 765         return 0;
 766 }
 767
 768 static int smsdvb_sleep(struct dvb_frontend *fe)
 769 {
 770         struct smsdvb_client_t *client =
 771                 container_of(fe, struct smsdvb_client_t, frontend);
 772
 773         sms_board_led_feedback(client->coredev, SMS_LED_OFF);
 774         sms_board_power(client->coredev, 0);
 775
 776         sms_board_dvb3_event(client, DVB3_EVENT_SLEEP);
 777
 778         return 0;
 779 }
 780
 781 static void smsdvb_release(struct dvb_frontend *fe)
 782 {
 783         /* do nothing */
 784 }
 785
 786 static struct dvb_frontend_ops smsdvb_fe_ops = {
 787         .info = {
 788                 .name                   = "Siano Mobile Digital MDTV Receiver",
 789                 .frequency_min          = 44250000,
 790                 .frequency_max          = 867250000,
 791                 .frequency_stepsize     = 250000,
 792                 .caps = FE_CAN_INVERSION_AUTO |
 793                         FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
 794                         FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
 795                         FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 |
 796                         FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO |
 797                         FE_CAN_GUARD_INTERVAL_AUTO |
 798                         FE_CAN_RECOVER |
 799                         FE_CAN_HIERARCHY_AUTO,
 800         },
 801
 802         .release = smsdvb_release,
 803
 804         .set_frontend = smsdvb_set_frontend,
 805         .get_frontend = smsdvb_get_frontend,
 806         .get_tune_settings = smsdvb_get_tune_settings,
 807
 808         .read_status = smsdvb_read_status,
 809         .read_ber = smsdvb_read_ber,
 810         .read_signal_strength = smsdvb_read_signal_strength,
 811         .read_snr = smsdvb_read_snr,
 812         .read_ucblocks = smsdvb_read_ucblocks,
 813
 814         .init = smsdvb_init,
 815         .sleep = smsdvb_sleep,
 816 };
 817
 818 static int smsdvb_hotplug(struct smscore_device_t *coredev,
 819                           struct device *device, int arrival)
 820 {
 821         struct smsclient_params_t params;
 822         struct smsdvb_client_t *client;
 823         int rc;
 824
 825         /* device removal handled by onremove callback */
 826         if (!arrival)
 827                 return 0;
 828         client = kzalloc(sizeof(struct smsdvb_client_t), GFP_KERNEL);
 829         if (!client) {
 830                 sms_err("kmalloc() failed");
 831                 return -ENOMEM;
 832         }
 833
 834         /* register dvb adapter */
 835         rc = dvb_register_adapter(&client->adapter,
 836                                   sms_get_board(
 837                                         smscore_get_board_id(coredev))->name,
 838                                   THIS_MODULE, device, adapter_nr);
 839         if (rc < 0) {
 840                 sms_err("dvb_register_adapter() failed %d", rc);
 841                 goto adapter_error;
 842         }
 843
 844         /* init dvb demux */
 845         client->demux.dmx.capabilities = DMX_TS_FILTERING;
 846         client->demux.filternum = 32; /* todo: nova ??? */
 847         client->demux.feednum = 32;
 848         client->demux.start_feed = smsdvb_start_feed;
 849         client->demux.stop_feed = smsdvb_stop_feed;
 850
 851         rc = dvb_dmx_init(&client->demux);
 852         if (rc < 0) {
 853                 sms_err("dvb_dmx_init failed %d", rc);
 854                 goto dvbdmx_error;
 855         }
 856
 857         /* init dmxdev */
 858         client->dmxdev.filternum = 32;
 859         client->dmxdev.demux = &client->demux.dmx;
 860         client->dmxdev.capabilities = 0;
 861
 862         rc = dvb_dmxdev_init(&client->dmxdev, &client->adapter);
 863         if (rc < 0) {
 864                 sms_err("dvb_dmxdev_init failed %d", rc);
 865                 goto dmxdev_error;
 866         }
 867
 868         /* init and register frontend */
 869         memcpy(&client->frontend.ops, &smsdvb_fe_ops,
 870                sizeof(struct dvb_frontend_ops));
 871
 872         switch (smscore_get_device_mode(coredev)) {
 873         case DEVICE_MODE_DVBT:
 874         case DEVICE_MODE_DVBT_BDA:
 875                 smsdvb_fe_ops.delsys[0] = SYS_DVBT;
 876                 break;
 877         case DEVICE_MODE_ISDBT:
 878         case DEVICE_MODE_ISDBT_BDA:
 879                 smsdvb_fe_ops.delsys[0] = SYS_ISDBT;
 880                 break;
 881         }
 882
 883         rc = dvb_register_frontend(&client->adapter, &client->frontend);
 884         if (rc < 0) {
 885                 sms_err("frontend registration failed %d", rc);
 886                 goto frontend_error;
 887         }
 888
 889         params.initial_id = 1;
 890         params.data_type = MSG_SMS_DVBT_BDA_DATA;
 891         params.onresponse_handler = smsdvb_onresponse;
 892         params.onremove_handler = smsdvb_onremove;
 893         params.context = client;
 894
 895         rc = smscore_register_client(coredev, &params, &client->smsclient);
 896         if (rc < 0) {
 897                 sms_err("smscore_register_client() failed %d", rc);
 898                 goto client_error;
 899         }
 900
 901         client->coredev = coredev;
 902
 903         init_completion(&client->tune_done);
 904
 905         kmutex_lock(&g_smsdvb_clientslock);
 906
 907         list_add(&client->entry, &g_smsdvb_clients);
 908
 909         kmutex_unlock(&g_smsdvb_clientslock);
 910
 911         client->event_fe_state = -1;
 912         client->event_unc_state = -1;
 913         sms_board_dvb3_event(client, DVB3_EVENT_HOTPLUG);
 914
 915         sms_info("success");
 916         sms_board_setup(coredev);
 917
 918         return 0;
 919
 920 client_error:
 921         dvb_unregister_frontend(&client->frontend);
 922
 923 frontend_error:
 924         dvb_dmxdev_release(&client->dmxdev);
 925
 926 dmxdev_error:
 927         dvb_dmx_release(&client->demux);
 928
 929 dvbdmx_error:
 930         dvb_unregister_adapter(&client->adapter);
 931
 932 adapter_error:
 933         kfree(client);
 934         return rc;
 935 }
 936
 937 static int __init smsdvb_module_init(void)
 938 {
 939         int rc;
 940
 941         INIT_LIST_HEAD(&g_smsdvb_clients);
 942         kmutex_init(&g_smsdvb_clientslock);
 943
 944         rc = smscore_register_hotplug(smsdvb_hotplug);
 945
 946         sms_debug("");
 947
 948         return rc;
 949 }
 950
 951 static void __exit smsdvb_module_exit(void)
 952 {
 953         smscore_unregister_hotplug(smsdvb_hotplug);
 954
 955         kmutex_lock(&g_smsdvb_clientslock);
 956
 957         while (!list_empty(&g_smsdvb_clients))
 958                smsdvb_unregister_client(
 959                         (struct smsdvb_client_t *) g_smsdvb_clients.next);
 960
 961         kmutex_unlock(&g_smsdvb_clientslock);
 962 }
 963
 964 module_init(smsdvb_module_init);
 965 module_exit(smsdvb_module_exit);
 966
 967 MODULE_DESCRIPTION("SMS DVB subsystem adaptation module");
 968 MODULE_AUTHOR("Siano Mobile Silicon, Inc. (uris@siano-ms.com)");
 969 MODULE_LICENSE("GPL");