mirror of
https://github.com/VDR4Arch/vdr.git
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728 lines
23 KiB
C
728 lines
23 KiB
C
/*
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* dvbdevice.c: The DVB device tuner interface
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*
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* See the main source file 'vdr.c' for copyright information and
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* how to reach the author.
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*
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* $Id: dvbdevice.c 2.27 2010/02/06 15:34:14 kls Exp $
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*/
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#include "dvbdevice.h"
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#include <errno.h>
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#include <limits.h>
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#include <linux/dvb/dmx.h>
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#include <linux/dvb/frontend.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include "channels.h"
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#include "diseqc.h"
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#include "dvbci.h"
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#define DVBS_TUNE_TIMEOUT 9000 //ms
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#define DVBS_LOCK_TIMEOUT 2000 //ms
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#define DVBC_TUNE_TIMEOUT 9000 //ms
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#define DVBC_LOCK_TIMEOUT 2000 //ms
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#define DVBT_TUNE_TIMEOUT 9000 //ms
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#define DVBT_LOCK_TIMEOUT 2000 //ms
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// --- cDvbTuner -------------------------------------------------------------
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class cDvbTuner : public cThread {
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private:
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enum eTunerStatus { tsIdle, tsSet, tsTuned, tsLocked };
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int device;
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int fd_frontend;
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int adapter, frontend;
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int tuneTimeout;
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int lockTimeout;
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time_t lastTimeoutReport;
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fe_delivery_system frontendType;
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cChannel channel;
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const char *diseqcCommands;
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eTunerStatus tunerStatus;
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cMutex mutex;
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cCondVar locked;
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cCondVar newSet;
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bool GetFrontendStatus(fe_status_t &Status, int TimeoutMs = 0);
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bool SetFrontend(void);
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virtual void Action(void);
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public:
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cDvbTuner(int Device, int Fd_Frontend, int Adapter, int Frontend, fe_delivery_system FrontendType);
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virtual ~cDvbTuner();
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const cChannel *GetTransponder(void) const { return &channel; }
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bool IsTunedTo(const cChannel *Channel) const;
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void Set(const cChannel *Channel);
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bool Locked(int TimeoutMs = 0);
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};
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cDvbTuner::cDvbTuner(int Device, int Fd_Frontend, int Adapter, int Frontend, fe_delivery_system FrontendType)
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{
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device = Device;
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fd_frontend = Fd_Frontend;
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adapter = Adapter;
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frontend = Frontend;
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frontendType = FrontendType;
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tuneTimeout = 0;
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lockTimeout = 0;
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lastTimeoutReport = 0;
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diseqcCommands = NULL;
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tunerStatus = tsIdle;
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if (frontendType == SYS_DVBS || frontendType == SYS_DVBS2)
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CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); // must explicitly turn on LNB power
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SetDescription("tuner on frontend %d/%d", adapter, frontend);
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Start();
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}
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cDvbTuner::~cDvbTuner()
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{
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tunerStatus = tsIdle;
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newSet.Broadcast();
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locked.Broadcast();
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Cancel(3);
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}
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bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
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{
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if (tunerStatus == tsIdle)
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return false; // not tuned to
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if (channel.Source() != Channel->Source() || channel.Transponder() != Channel->Transponder())
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return false; // sufficient mismatch
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char Type = **cSource::ToString(Channel->Source());
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#define ST(s, p) if (strchr(s, Type)) if (channel.p() != Channel->p()) return false;
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// Polarization is already checked as part of the Transponder.
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ST(" T", Bandwidth);
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ST("CST", CoderateH);
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ST(" T", CoderateL);
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ST(" T", Guard);
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ST("CST", Inversion);
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ST("CST", Modulation);
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ST(" S ", RollOff);
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ST(" S ", System);
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ST("CS ", Srate);
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ST(" T", Transmission);
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ST(" T", Hierarchy);
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return true;
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}
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void cDvbTuner::Set(const cChannel *Channel)
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{
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cMutexLock MutexLock(&mutex);
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if (!IsTunedTo(Channel))
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tunerStatus = tsSet;
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channel = *Channel;
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lastTimeoutReport = 0;
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newSet.Broadcast();
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}
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bool cDvbTuner::Locked(int TimeoutMs)
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{
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bool isLocked = (tunerStatus >= tsLocked);
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if (isLocked || !TimeoutMs)
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return isLocked;
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cMutexLock MutexLock(&mutex);
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if (TimeoutMs && tunerStatus < tsLocked)
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locked.TimedWait(mutex, TimeoutMs);
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return tunerStatus >= tsLocked;
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}
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bool cDvbTuner::GetFrontendStatus(fe_status_t &Status, int TimeoutMs)
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{
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if (TimeoutMs) {
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cPoller Poller(fd_frontend);
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if (Poller.Poll(TimeoutMs)) {
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dvb_frontend_event Event;
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while (ioctl(fd_frontend, FE_GET_EVENT, &Event) == 0)
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; // just to clear the event queue - we'll read the actual status below
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}
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}
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while (1) {
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if (ioctl(fd_frontend, FE_READ_STATUS, &Status) != -1)
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return true;
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if (errno != EINTR)
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break;
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}
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return false;
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}
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static unsigned int FrequencyToHz(unsigned int f)
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{
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while (f && f < 1000000)
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f *= 1000;
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return f;
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}
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bool cDvbTuner::SetFrontend(void)
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{
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#define MAXFRONTENDCMDS 16
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#define SETCMD(c, d) { Frontend[CmdSeq.num].cmd = (c);\
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Frontend[CmdSeq.num].u.data = (d);\
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if (CmdSeq.num++ > MAXFRONTENDCMDS) {\
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esyslog("ERROR: too many tuning commands on frontend %d/%d", adapter, frontend);\
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return false;\
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}\
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}
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dtv_property Frontend[MAXFRONTENDCMDS];
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memset(&Frontend, 0, sizeof(Frontend));
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dtv_properties CmdSeq;
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memset(&CmdSeq, 0, sizeof(CmdSeq));
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CmdSeq.props = Frontend;
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SETCMD(DTV_CLEAR, 0);
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if (ioctl(fd_frontend, FE_SET_PROPERTY, &CmdSeq) < 0) {
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esyslog("ERROR: frontend %d/%d: %m", adapter, frontend);
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return false;
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}
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CmdSeq.num = 0;
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if (frontendType == SYS_DVBS || frontendType == SYS_DVBS2) {
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unsigned int frequency = channel.Frequency();
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if (Setup.DiSEqC) {
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cDiseqc *diseqc = Diseqcs.Get(device, channel.Source(), channel.Frequency(), channel.Polarization());
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if (diseqc) {
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if (diseqc->Commands() && (!diseqcCommands || strcmp(diseqcCommands, diseqc->Commands()) != 0)) {
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cDiseqc::eDiseqcActions da;
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for (char *CurrentAction = NULL; (da = diseqc->Execute(&CurrentAction)) != cDiseqc::daNone; ) {
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switch (da) {
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case cDiseqc::daNone: break;
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case cDiseqc::daToneOff: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF)); break;
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case cDiseqc::daToneOn: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_ON)); break;
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case cDiseqc::daVoltage13: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); break;
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case cDiseqc::daVoltage18: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_18)); break;
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case cDiseqc::daMiniA: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_A)); break;
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case cDiseqc::daMiniB: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_B)); break;
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case cDiseqc::daCodes: {
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int n = 0;
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uchar *codes = diseqc->Codes(n);
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if (codes) {
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struct dvb_diseqc_master_cmd cmd;
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cmd.msg_len = min(n, int(sizeof(cmd.msg)));
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memcpy(cmd.msg, codes, cmd.msg_len);
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CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd));
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}
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}
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break;
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default: esyslog("ERROR: unknown diseqc command %d", da);
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}
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}
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diseqcCommands = diseqc->Commands();
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}
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frequency -= diseqc->Lof();
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}
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else {
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esyslog("ERROR: no DiSEqC parameters found for channel %d", channel.Number());
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return false;
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}
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}
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else {
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int tone = SEC_TONE_OFF;
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if (frequency < (unsigned int)Setup.LnbSLOF) {
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frequency -= Setup.LnbFrequLo;
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tone = SEC_TONE_OFF;
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}
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else {
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frequency -= Setup.LnbFrequHi;
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tone = SEC_TONE_ON;
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}
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int volt = (channel.Polarization() == 'v' || channel.Polarization() == 'V' || channel.Polarization() == 'r' || channel.Polarization() == 'R') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
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CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt));
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CHECK(ioctl(fd_frontend, FE_SET_TONE, tone));
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}
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frequency = abs(frequency); // Allow for C-band, where the frequency is less than the LOF
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// DVB-S/DVB-S2 (common parts)
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SETCMD(DTV_DELIVERY_SYSTEM, channel.System());
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SETCMD(DTV_FREQUENCY, frequency * 1000UL);
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SETCMD(DTV_MODULATION, channel.Modulation());
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SETCMD(DTV_SYMBOL_RATE, channel.Srate() * 1000UL);
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SETCMD(DTV_INNER_FEC, channel.CoderateH());
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SETCMD(DTV_INVERSION, channel.Inversion());
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if (channel.System() == SYS_DVBS2) {
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if (frontendType == SYS_DVBS2) {
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// DVB-S2
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SETCMD(DTV_PILOT, PILOT_AUTO);
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SETCMD(DTV_ROLLOFF, channel.RollOff());
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}
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else {
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esyslog("ERROR: frontend %d/%d doesn't provide DVB-S2", adapter, frontend);
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return false;
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}
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}
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else {
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// DVB-S
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SETCMD(DTV_ROLLOFF, ROLLOFF_35); // DVB-S always has a ROLLOFF of 0.35
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}
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tuneTimeout = DVBS_TUNE_TIMEOUT;
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lockTimeout = DVBS_LOCK_TIMEOUT;
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}
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else if (frontendType == SYS_DVBC_ANNEX_AC || frontendType == SYS_DVBC_ANNEX_B) {
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// DVB-C
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SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
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SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
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SETCMD(DTV_INVERSION, channel.Inversion());
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SETCMD(DTV_SYMBOL_RATE, channel.Srate() * 1000UL);
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SETCMD(DTV_INNER_FEC, channel.CoderateH());
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SETCMD(DTV_MODULATION, channel.Modulation());
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tuneTimeout = DVBC_TUNE_TIMEOUT;
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lockTimeout = DVBC_LOCK_TIMEOUT;
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}
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else if (frontendType == SYS_DVBT) {
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// DVB-T
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SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
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SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
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SETCMD(DTV_INVERSION, channel.Inversion());
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SETCMD(DTV_BANDWIDTH_HZ, channel.Bandwidth());
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SETCMD(DTV_CODE_RATE_HP, channel.CoderateH());
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SETCMD(DTV_CODE_RATE_LP, channel.CoderateL());
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SETCMD(DTV_MODULATION, channel.Modulation());
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SETCMD(DTV_TRANSMISSION_MODE, channel.Transmission());
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SETCMD(DTV_GUARD_INTERVAL, channel.Guard());
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SETCMD(DTV_HIERARCHY, channel.Hierarchy());
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tuneTimeout = DVBT_TUNE_TIMEOUT;
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lockTimeout = DVBT_LOCK_TIMEOUT;
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}
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else {
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esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
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return false;
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}
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SETCMD(DTV_TUNE, 0);
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if (ioctl(fd_frontend, FE_SET_PROPERTY, &CmdSeq) < 0) {
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esyslog("ERROR: frontend %d/%d: %m", adapter, frontend);
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return false;
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}
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return true;
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}
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void cDvbTuner::Action(void)
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{
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cTimeMs Timer;
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bool LostLock = false;
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fe_status_t Status = (fe_status_t)0;
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while (Running()) {
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fe_status_t NewStatus;
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if (GetFrontendStatus(NewStatus, 10))
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Status = NewStatus;
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cMutexLock MutexLock(&mutex);
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switch (tunerStatus) {
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case tsIdle:
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break;
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case tsSet:
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tunerStatus = SetFrontend() ? tsTuned : tsIdle;
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Timer.Set(tuneTimeout);
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continue;
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case tsTuned:
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if (Timer.TimedOut()) {
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tunerStatus = tsSet;
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diseqcCommands = NULL;
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if (time(NULL) - lastTimeoutReport > 60) { // let's not get too many of these
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isyslog("frontend %d/%d timed out while tuning to channel %d, tp %d", adapter, frontend, channel.Number(), channel.Transponder());
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lastTimeoutReport = time(NULL);
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}
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continue;
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}
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case tsLocked:
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if (Status & FE_REINIT) {
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tunerStatus = tsSet;
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diseqcCommands = NULL;
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isyslog("frontend %d/%d was reinitialized", adapter, frontend);
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lastTimeoutReport = 0;
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continue;
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}
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else if (Status & FE_HAS_LOCK) {
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if (LostLock) {
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isyslog("frontend %d/%d regained lock on channel %d, tp %d", adapter, frontend, channel.Number(), channel.Transponder());
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LostLock = false;
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}
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tunerStatus = tsLocked;
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locked.Broadcast();
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lastTimeoutReport = 0;
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}
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else if (tunerStatus == tsLocked) {
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LostLock = true;
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isyslog("frontend %d/%d lost lock on channel %d, tp %d", adapter, frontend, channel.Number(), channel.Transponder());
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tunerStatus = tsTuned;
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Timer.Set(lockTimeout);
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lastTimeoutReport = 0;
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continue;
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}
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break;
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default: esyslog("ERROR: unknown tuner status %d", tunerStatus);
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}
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if (tunerStatus != tsTuned)
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newSet.TimedWait(mutex, 1000);
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}
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}
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// --- cDvbDevice ------------------------------------------------------------
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int cDvbDevice::setTransferModeForDolbyDigital = 1;
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const char *DeliverySystems[] = {
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"UNDEFINED",
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"DVB-C",
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"DVB-C",
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"DVB-T",
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"DSS",
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"DVB-S",
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"DVB-S2",
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"DVB-H",
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"ISDBT",
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"ISDBS",
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"ISDBC",
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"ATSC",
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"ATSCMH",
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"DMBTH",
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"CMMB",
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"DAB",
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NULL
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};
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cDvbDevice::cDvbDevice(int Adapter, int Frontend)
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{
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adapter = Adapter;
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frontend = Frontend;
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ciAdapter = NULL;
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dvbTuner = NULL;
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frontendType = SYS_UNDEFINED;
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numProvidedSystems = 0;
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// Devices that are present on all card types:
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int fd_frontend = DvbOpen(DEV_DVB_FRONTEND, adapter, frontend, O_RDWR | O_NONBLOCK);
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// Common Interface:
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fd_ca = DvbOpen(DEV_DVB_CA, adapter, frontend, O_RDWR);
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if (fd_ca >= 0)
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ciAdapter = cDvbCiAdapter::CreateCiAdapter(this, fd_ca);
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// The DVR device (will be opened and closed as needed):
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fd_dvr = -1;
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// We only check the devices that must be present - the others will be checked before accessing them://XXX
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if (fd_frontend >= 0) {
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if (ioctl(fd_frontend, FE_GET_INFO, &frontendInfo) >= 0) {
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switch (frontendInfo.type) {
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case FE_QPSK: frontendType = (frontendInfo.caps & FE_CAN_2G_MODULATION) ? SYS_DVBS2 : SYS_DVBS; break;
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case FE_OFDM: frontendType = SYS_DVBT; break;
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case FE_QAM: frontendType = SYS_DVBC_ANNEX_AC; break;
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case FE_ATSC: frontendType = SYS_ATSC; break;
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default: esyslog("ERROR: unknown frontend type %d on frontend %d/%d", frontendInfo.type, adapter, frontend);
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}
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}
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else
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LOG_ERROR;
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if (frontendType != SYS_UNDEFINED) {
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numProvidedSystems++;
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if (frontendType == SYS_DVBS2)
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numProvidedSystems++;
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isyslog("frontend %d/%d provides %s (\"%s\")", adapter, frontend, DeliverySystems[frontendType], frontendInfo.name);
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dvbTuner = new cDvbTuner(DeviceNumber(), fd_frontend, adapter, frontend, frontendType);
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}
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}
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else
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esyslog("ERROR: can't open DVB device %d/%d", adapter, frontend);
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StartSectionHandler();
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}
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cDvbDevice::~cDvbDevice()
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{
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StopSectionHandler();
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delete dvbTuner;
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delete ciAdapter;
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// We're not explicitly closing any device files here, since this sometimes
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// caused segfaults. Besides, the program is about to terminate anyway...
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}
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cString cDvbDevice::DvbName(const char *Name, int Adapter, int Frontend)
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{
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return cString::sprintf("%s%d/%s%d", DEV_DVB_ADAPTER, Adapter, Name, Frontend);
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}
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int cDvbDevice::DvbOpen(const char *Name, int Adapter, int Frontend, int Mode, bool ReportError)
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{
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cString FileName = DvbName(Name, Adapter, Frontend);
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int fd = open(FileName, Mode);
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if (fd < 0 && ReportError)
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LOG_ERROR_STR(*FileName);
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return fd;
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}
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bool cDvbDevice::Exists(int Adapter, int Frontend)
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{
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cString FileName = DvbName(DEV_DVB_FRONTEND, Adapter, Frontend);
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if (access(FileName, F_OK) == 0) {
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int f = open(FileName, O_RDONLY);
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if (f >= 0) {
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close(f);
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return true;
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}
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else if (errno != ENODEV && errno != EINVAL)
|
|
LOG_ERROR_STR(*FileName);
|
|
}
|
|
else if (errno != ENOENT)
|
|
LOG_ERROR_STR(*FileName);
|
|
return false;
|
|
}
|
|
|
|
bool cDvbDevice::Probe(int Adapter, int Frontend)
|
|
{
|
|
cString FileName = DvbName(DEV_DVB_FRONTEND, Adapter, Frontend);
|
|
dsyslog("probing %s", *FileName);
|
|
for (cDvbDeviceProbe *dp = DvbDeviceProbes.First(); dp; dp = DvbDeviceProbes.Next(dp)) {
|
|
if (dp->Probe(Adapter, Frontend))
|
|
return true; // a plugin has created the actual device
|
|
}
|
|
dsyslog("creating cDvbDevice");
|
|
new cDvbDevice(Adapter, Frontend); // it's a "budget" device
|
|
return true;
|
|
}
|
|
|
|
bool cDvbDevice::Initialize(void)
|
|
{
|
|
int Checked = 0;
|
|
int Found = 0;
|
|
for (int Adapter = 0; ; Adapter++) {
|
|
for (int Frontend = 0; ; Frontend++) {
|
|
if (Exists(Adapter, Frontend)) {
|
|
if (Checked++ < MAXDVBDEVICES) {
|
|
if (UseDevice(NextCardIndex())) {
|
|
if (Probe(Adapter, Frontend))
|
|
Found++;
|
|
}
|
|
else
|
|
NextCardIndex(1); // skips this one
|
|
}
|
|
}
|
|
else if (Frontend == 0)
|
|
goto LastAdapter;
|
|
else
|
|
goto NextAdapter;
|
|
}
|
|
NextAdapter: ;
|
|
}
|
|
LastAdapter:
|
|
NextCardIndex(MAXDVBDEVICES - Checked); // skips the rest
|
|
if (Found > 0)
|
|
isyslog("found %d DVB device%s", Found, Found > 1 ? "s" : "");
|
|
else
|
|
isyslog("no DVB device found");
|
|
return Found > 0;
|
|
}
|
|
|
|
bool cDvbDevice::Ready(void)
|
|
{
|
|
if (ciAdapter)
|
|
return ciAdapter->Ready();
|
|
return true;
|
|
}
|
|
|
|
bool cDvbDevice::HasCi(void)
|
|
{
|
|
return ciAdapter;
|
|
}
|
|
|
|
bool cDvbDevice::SetPid(cPidHandle *Handle, int Type, bool On)
|
|
{
|
|
if (Handle->pid) {
|
|
dmx_pes_filter_params pesFilterParams;
|
|
memset(&pesFilterParams, 0, sizeof(pesFilterParams));
|
|
if (On) {
|
|
if (Handle->handle < 0) {
|
|
Handle->handle = DvbOpen(DEV_DVB_DEMUX, adapter, frontend, O_RDWR | O_NONBLOCK, true);
|
|
if (Handle->handle < 0) {
|
|
LOG_ERROR;
|
|
return false;
|
|
}
|
|
}
|
|
pesFilterParams.pid = Handle->pid;
|
|
pesFilterParams.input = DMX_IN_FRONTEND;
|
|
pesFilterParams.output = DMX_OUT_TS_TAP;
|
|
pesFilterParams.pes_type= DMX_PES_OTHER;
|
|
pesFilterParams.flags = DMX_IMMEDIATE_START;
|
|
if (ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
|
|
LOG_ERROR;
|
|
return false;
|
|
}
|
|
}
|
|
else if (!Handle->used) {
|
|
CHECK(ioctl(Handle->handle, DMX_STOP));
|
|
if (Type <= ptTeletext) {
|
|
pesFilterParams.pid = 0x1FFF;
|
|
pesFilterParams.input = DMX_IN_FRONTEND;
|
|
pesFilterParams.output = DMX_OUT_DECODER;
|
|
pesFilterParams.pes_type= DMX_PES_OTHER;
|
|
pesFilterParams.flags = DMX_IMMEDIATE_START;
|
|
CHECK(ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams));
|
|
}
|
|
close(Handle->handle);
|
|
Handle->handle = -1;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
int cDvbDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask)
|
|
{
|
|
cString FileName = DvbName(DEV_DVB_DEMUX, adapter, frontend);
|
|
int f = open(FileName, O_RDWR | O_NONBLOCK);
|
|
if (f >= 0) {
|
|
dmx_sct_filter_params sctFilterParams;
|
|
memset(&sctFilterParams, 0, sizeof(sctFilterParams));
|
|
sctFilterParams.pid = Pid;
|
|
sctFilterParams.timeout = 0;
|
|
sctFilterParams.flags = DMX_IMMEDIATE_START;
|
|
sctFilterParams.filter.filter[0] = Tid;
|
|
sctFilterParams.filter.mask[0] = Mask;
|
|
if (ioctl(f, DMX_SET_FILTER, &sctFilterParams) >= 0)
|
|
return f;
|
|
else {
|
|
esyslog("ERROR: can't set filter (pid=%d, tid=%02X, mask=%02X): %m", Pid, Tid, Mask);
|
|
close(f);
|
|
}
|
|
}
|
|
else
|
|
esyslog("ERROR: can't open filter handle on '%s'", *FileName);
|
|
return -1;
|
|
}
|
|
|
|
void cDvbDevice::CloseFilter(int Handle)
|
|
{
|
|
close(Handle);
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesSource(int Source) const
|
|
{
|
|
int type = Source & cSource::st_Mask;
|
|
return type == cSource::stNone
|
|
|| type == cSource::stCable && (frontendType == SYS_DVBC_ANNEX_AC || frontendType == SYS_DVBC_ANNEX_B)
|
|
|| type == cSource::stSat && (frontendType == SYS_DVBS || frontendType == SYS_DVBS2)
|
|
|| type == cSource::stTerr && (frontendType == SYS_DVBT);
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesTransponder(const cChannel *Channel) const
|
|
{
|
|
if (!ProvidesSource(Channel->Source()))
|
|
return false; // doesn't provide source
|
|
if (!cSource::IsSat(Channel->Source()))
|
|
return DeviceHooksProvidesTransponder(Channel); // source is sufficient for non sat
|
|
if (frontendType == SYS_DVBS && Channel->System() == SYS_DVBS2)
|
|
return false; // requires modulation system which frontend doesn't provide
|
|
if (!Setup.DiSEqC || Diseqcs.Get(DeviceNumber(), Channel->Source(), Channel->Frequency(), Channel->Polarization()))
|
|
return DeviceHooksProvidesTransponder(Channel);
|
|
return false;
|
|
}
|
|
|
|
bool cDvbDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const
|
|
{
|
|
bool result = false;
|
|
bool hasPriority = Priority < 0 || Priority > this->Priority();
|
|
bool needsDetachReceivers = false;
|
|
|
|
if (ProvidesTransponder(Channel)) {
|
|
result = hasPriority;
|
|
if (Priority >= 0 && Receiving(true)) {
|
|
if (dvbTuner->IsTunedTo(Channel)) {
|
|
if (Channel->Vpid() && !HasPid(Channel->Vpid()) || Channel->Apid(0) && !HasPid(Channel->Apid(0))) {
|
|
if (CamSlot() && Channel->Ca() >= CA_ENCRYPTED_MIN) {
|
|
if (CamSlot()->CanDecrypt(Channel))
|
|
result = true;
|
|
else
|
|
needsDetachReceivers = true;
|
|
}
|
|
else if (!IsPrimaryDevice())
|
|
result = true;
|
|
else
|
|
result = Priority >= Setup.PrimaryLimit;
|
|
}
|
|
else
|
|
result = !IsPrimaryDevice() || Priority >= Setup.PrimaryLimit;
|
|
}
|
|
else
|
|
needsDetachReceivers = true;
|
|
}
|
|
}
|
|
if (NeedsDetachReceivers)
|
|
*NeedsDetachReceivers = needsDetachReceivers;
|
|
return result;
|
|
}
|
|
|
|
int cDvbDevice::NumProvidedSystems(void) const
|
|
{
|
|
return numProvidedSystems;
|
|
}
|
|
|
|
const cChannel *cDvbDevice::GetCurrentlyTunedTransponder(void) const
|
|
{
|
|
return dvbTuner->GetTransponder();
|
|
}
|
|
|
|
bool cDvbDevice::IsTunedToTransponder(const cChannel *Channel)
|
|
{
|
|
return dvbTuner->IsTunedTo(Channel);
|
|
}
|
|
|
|
bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
|
|
{
|
|
dvbTuner->Set(Channel);
|
|
return true;
|
|
}
|
|
|
|
bool cDvbDevice::HasLock(int TimeoutMs)
|
|
{
|
|
return dvbTuner ? dvbTuner->Locked(TimeoutMs) : false;
|
|
}
|
|
|
|
void cDvbDevice::SetTransferModeForDolbyDigital(int Mode)
|
|
{
|
|
setTransferModeForDolbyDigital = Mode;
|
|
}
|
|
|
|
bool cDvbDevice::OpenDvr(void)
|
|
{
|
|
CloseDvr();
|
|
fd_dvr = DvbOpen(DEV_DVB_DVR, adapter, frontend, O_RDONLY | O_NONBLOCK, true);
|
|
if (fd_dvr >= 0)
|
|
tsBuffer = new cTSBuffer(fd_dvr, MEGABYTE(2), CardIndex() + 1);
|
|
return fd_dvr >= 0;
|
|
}
|
|
|
|
void cDvbDevice::CloseDvr(void)
|
|
{
|
|
if (fd_dvr >= 0) {
|
|
delete tsBuffer;
|
|
tsBuffer = NULL;
|
|
close(fd_dvr);
|
|
fd_dvr = -1;
|
|
}
|
|
}
|
|
|
|
bool cDvbDevice::GetTSPacket(uchar *&Data)
|
|
{
|
|
if (tsBuffer) {
|
|
Data = tsBuffer->Get();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// --- cDvbDeviceProbe -------------------------------------------------------
|
|
|
|
cList<cDvbDeviceProbe> DvbDeviceProbes;
|
|
|
|
cDvbDeviceProbe::cDvbDeviceProbe(void)
|
|
{
|
|
DvbDeviceProbes.Add(this);
|
|
}
|
|
|
|
cDvbDeviceProbe::~cDvbDeviceProbe()
|
|
{
|
|
DvbDeviceProbes.Del(this, false);
|
|
}
|