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vdr/dvbdevice.c
Klaus Schmidinger 5a28d99936 Version 1.7.22 
Original announce message:
VDR developer version 1.7.22 is now available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-1.7.22.tar.bz2

A 'diff' against the previous version is available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-1.7.21-1.7.22.diff

MD5 checksums:

b9c0fe1aac8e653c0d0234bc72c2bb2c  vdr-1.7.22.tar.bz2
868bb332342c9a78beda17cc85e0bb93  vdr-1.7.21-1.7.22.diff

WARNING:
========

This is a developer version. Even though I use it in my productive
environment. I strongly recommend that you only use it under controlled
conditions and for testing and debugging.

From the HISTORY file:
- Fixed scaling subtitles in case the primary device's GetVideoSize() function doesn't
  return actual values (thanks to Luca Olivetti).
- The DiSEqC codes are now copied in the call to cDiseqc::Execute().
- VDR now supports "Satellite Channel Routing" (SCR) according to EN50494 (based on
  the "unicable" patch from Lars Hanisch).
  Since "Unicable" is a registered trademark and stands for only one of many
  implementations of SCR, the following changes have been made compared to the patch,
  which need to be taken into account by people who have set up their system using
  the patch:
  - The 'U' parameter in the diseqc.conf file has been changed to 'S' ("Scr").
  - The configuration file name has been changed from "unicable.conf" to "scr.conf".
- Updated sources.conf (thanks to Arthur Konovalov).
- The SVDRP command LSTC now also accepts channel IDs (thanks to Dominic Evans).
- Fixed handling DVB subtitles and implemented decoding textual DVB subtitles (thanks
  to Rolf Ahrenberg).
- Added cap_net_raw to the capabilities that are not dropped (thanks to Dominic Evans).
- Fixed setting the start time of an edited recording (thanks to Christoph Haubrich).
- Temporarily switching free devices to transponders in order to have their running
  status updated is now done by marking the devices as "occupied" for a certain
  amount of time.
- The new setup options "LNB/Device n connected to sat cable" can be used to define
  which DVB-S devices are connected to the same sat cable and are therefore "bonded".
  This obsoletes the LNBSHARE patch. Users of the LNBSHARE patch will need to newly
  set up their sat devices with the above options.
- Fixed a crash when deleting a recording while cutting it (thanks to Ville Skyttä).
- Fixed several spelling errors (thanks to Ville Skyttä).
- The new SVDRP command UPDR can be used to trigger an update of the list of
  recordings (thanks to Lars Hanisch).
- Added generating a pkg-config file to the Makefile (thanks to Ville Skyttä).
- Removed the '.pl' suffix from all scripts (thanks to Ville Skyttä).
- Changed the default location for the LIRC socket to /var/run/lirc/lircd (thanks
  to Ville Skyttä).
- Added file name and line number to LOG_ERROR_STR() (thanks to Rolf Ahrenberg).
- Replaced all calls to sleep() with cCondWait::SleepMs() (thanks to Rolf Ahrenberg).
- Fixed a crash with malformed SI data (patch from vdr-portal).
2011-12-05 20:36:02 +01:00

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/*
* dvbdevice.c: The DVB device tuner interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.c 2.48 2011/12/03 15:24:27 kls Exp $
*/
#include "dvbdevice.h"
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "channels.h"
#include "diseqc.h"
#include "dvbci.h"
#include "menuitems.h"
#include "sourceparams.h"
#define FE_CAN_TURBO_FEC 0x8000000 // TODO: remove this once it is defined in the driver
#define DVBS_TUNE_TIMEOUT 9000 //ms
#define DVBS_LOCK_TIMEOUT 2000 //ms
#define DVBC_TUNE_TIMEOUT 9000 //ms
#define DVBC_LOCK_TIMEOUT 2000 //ms
#define DVBT_TUNE_TIMEOUT 9000 //ms
#define DVBT_LOCK_TIMEOUT 2000 //ms
#define ATSC_TUNE_TIMEOUT 9000 //ms
#define ATSC_LOCK_TIMEOUT 2000 //ms
#define SCR_RANDOM_TIMEOUT 500 // ms (add random value up to this when tuning SCR device to avoid lockups)
// --- DVB Parameter Maps ----------------------------------------------------
const tDvbParameterMap InversionValues[] = {
{ 0, INVERSION_OFF, trNOOP("off") },
{ 1, INVERSION_ON, trNOOP("on") },
{ 999, INVERSION_AUTO, trNOOP("auto") },
{ -1, 0, NULL }
};
const tDvbParameterMap BandwidthValues[] = {
{ 6, 6000000, "6 MHz" },
{ 7, 7000000, "7 MHz" },
{ 8, 8000000, "8 MHz" },
{ -1, 0, NULL }
};
const tDvbParameterMap CoderateValues[] = {
{ 0, FEC_NONE, trNOOP("none") },
{ 12, FEC_1_2, "1/2" },
{ 23, FEC_2_3, "2/3" },
{ 34, FEC_3_4, "3/4" },
{ 35, FEC_3_5, "3/5" },
{ 45, FEC_4_5, "4/5" },
{ 56, FEC_5_6, "5/6" },
{ 67, FEC_6_7, "6/7" },
{ 78, FEC_7_8, "7/8" },
{ 89, FEC_8_9, "8/9" },
{ 910, FEC_9_10, "9/10" },
{ 999, FEC_AUTO, trNOOP("auto") },
{ -1, 0, NULL }
};
const tDvbParameterMap ModulationValues[] = {
{ 16, QAM_16, "QAM16" },
{ 32, QAM_32, "QAM32" },
{ 64, QAM_64, "QAM64" },
{ 128, QAM_128, "QAM128" },
{ 256, QAM_256, "QAM256" },
{ 2, QPSK, "QPSK" },
{ 5, PSK_8, "8PSK" },
{ 6, APSK_16, "16APSK" },
{ 10, VSB_8, "VSB8" },
{ 11, VSB_16, "VSB16" },
{ 998, QAM_AUTO, "QAMAUTO" },
{ -1, 0, NULL }
};
const tDvbParameterMap SystemValues[] = {
{ 0, SYS_DVBS, "DVB-S" },
{ 1, SYS_DVBS2, "DVB-S2" },
{ -1, 0, NULL }
};
const tDvbParameterMap TransmissionValues[] = {
{ 2, TRANSMISSION_MODE_2K, "2K" },
{ 8, TRANSMISSION_MODE_8K, "8K" },
{ 999, TRANSMISSION_MODE_AUTO, trNOOP("auto") },
{ -1, 0, NULL }
};
const tDvbParameterMap GuardValues[] = {
{ 4, GUARD_INTERVAL_1_4, "1/4" },
{ 8, GUARD_INTERVAL_1_8, "1/8" },
{ 16, GUARD_INTERVAL_1_16, "1/16" },
{ 32, GUARD_INTERVAL_1_32, "1/32" },
{ 999, GUARD_INTERVAL_AUTO, trNOOP("auto") },
{ -1, 0, NULL }
};
const tDvbParameterMap HierarchyValues[] = {
{ 0, HIERARCHY_NONE, trNOOP("none") },
{ 1, HIERARCHY_1, "1" },
{ 2, HIERARCHY_2, "2" },
{ 4, HIERARCHY_4, "4" },
{ 999, HIERARCHY_AUTO, trNOOP("auto") },
{ -1, 0, NULL }
};
const tDvbParameterMap RollOffValues[] = {
{ 0, ROLLOFF_AUTO, trNOOP("auto") },
{ 20, ROLLOFF_20, "0.20" },
{ 25, ROLLOFF_25, "0.25" },
{ 35, ROLLOFF_35, "0.35" },
{ -1, 0, NULL }
};
int UserIndex(int Value, const tDvbParameterMap *Map)
{
const tDvbParameterMap *map = Map;
while (map && map->userValue != -1) {
if (map->userValue == Value)
return map - Map;
map++;
}
return -1;
}
int DriverIndex(int Value, const tDvbParameterMap *Map)
{
const tDvbParameterMap *map = Map;
while (map && map->userValue != -1) {
if (map->driverValue == Value)
return map - Map;
map++;
}
return -1;
}
int MapToUser(int Value, const tDvbParameterMap *Map, const char **String)
{
int n = DriverIndex(Value, Map);
if (n >= 0) {
if (String)
*String = tr(Map[n].userString);
return Map[n].userValue;
}
return -1;
}
const char *MapToUserString(int Value, const tDvbParameterMap *Map)
{
int n = DriverIndex(Value, Map);
if (n >= 0)
return Map[n].userString;
return "???";
}
int MapToDriver(int Value, const tDvbParameterMap *Map)
{
int n = UserIndex(Value, Map);
if (n >= 0)
return Map[n].driverValue;
return -1;
}
// --- cDvbTransponderParameters ---------------------------------------------
cDvbTransponderParameters::cDvbTransponderParameters(const char *Parameters)
{
polarization = 0;
inversion = INVERSION_AUTO;
bandwidth = 8000000;
coderateH = FEC_AUTO;
coderateL = FEC_AUTO;
modulation = QPSK;
system = SYS_DVBS;
transmission = TRANSMISSION_MODE_AUTO;
guard = GUARD_INTERVAL_AUTO;
hierarchy = HIERARCHY_AUTO;
rollOff = ROLLOFF_AUTO;
Parse(Parameters);
}
int cDvbTransponderParameters::PrintParameter(char *p, char Name, int Value) const
{
return Value >= 0 && Value != 999 ? sprintf(p, "%c%d", Name, Value) : 0;
}
cString cDvbTransponderParameters::ToString(char Type) const
{
#define ST(s) if (strchr(s, Type))
char buffer[64];
char *q = buffer;
*q = 0;
ST(" S ") q += sprintf(q, "%c", polarization);
ST(" T") q += PrintParameter(q, 'B', MapToUser(bandwidth, BandwidthValues));
ST(" CST") q += PrintParameter(q, 'C', MapToUser(coderateH, CoderateValues));
ST(" T") q += PrintParameter(q, 'D', MapToUser(coderateL, CoderateValues));
ST(" T") q += PrintParameter(q, 'G', MapToUser(guard, GuardValues));
ST("ACST") q += PrintParameter(q, 'I', MapToUser(inversion, InversionValues));
ST("ACST") q += PrintParameter(q, 'M', MapToUser(modulation, ModulationValues));
ST(" S ") q += PrintParameter(q, 'O', MapToUser(rollOff, RollOffValues));
ST(" S ") q += PrintParameter(q, 'S', MapToUser(system, SystemValues));
ST(" T") q += PrintParameter(q, 'T', MapToUser(transmission, TransmissionValues));
ST(" T") q += PrintParameter(q, 'Y', MapToUser(hierarchy, HierarchyValues));
return buffer;
}
const char *cDvbTransponderParameters::ParseParameter(const char *s, int &Value, const tDvbParameterMap *Map)
{
if (*++s) {
char *p = NULL;
errno = 0;
int n = strtol(s, &p, 10);
if (!errno && p != s) {
Value = MapToDriver(n, Map);
if (Value >= 0)
return p;
}
}
esyslog("ERROR: invalid value for parameter '%c'", *(s - 1));
return NULL;
}
bool cDvbTransponderParameters::Parse(const char *s)
{
while (s && *s) {
switch (toupper(*s)) {
case 'B': s = ParseParameter(s, bandwidth, BandwidthValues); break;
case 'C': s = ParseParameter(s, coderateH, CoderateValues); break;
case 'D': s = ParseParameter(s, coderateL, CoderateValues); break;
case 'G': s = ParseParameter(s, guard, GuardValues); break;
case 'H': polarization = *s++; break;
case 'I': s = ParseParameter(s, inversion, InversionValues); break;
case 'L': polarization = *s++; break;
case 'M': s = ParseParameter(s, modulation, ModulationValues); break;
case 'O': s = ParseParameter(s, rollOff, RollOffValues); break;
case 'R': polarization = *s++; break;
case 'S': s = ParseParameter(s, system, SystemValues); break;
case 'T': s = ParseParameter(s, transmission, TransmissionValues); break;
case 'V': polarization = *s++; break;
case 'Y': s = ParseParameter(s, hierarchy, HierarchyValues); break;
default: esyslog("ERROR: unknown parameter key '%c'", *s);
return false;
}
}
return true;
}
// --- cDvbTuner -------------------------------------------------------------
#define TUNER_POLL_TIMEOUT 10 // ms
class cDvbTuner : public cThread {
private:
static cMutex bondMutex;
enum eTunerStatus { tsIdle, tsSet, tsTuned, tsLocked };
const cDvbDevice *device;
int fd_frontend;
int adapter, frontend;
uint32_t subsystemId;
int tuneTimeout;
int lockTimeout;
time_t lastTimeoutReport;
fe_delivery_system frontendType;
cChannel channel;
const cDiseqc *lastDiseqc;
const cScr *scr;
eTunerStatus tunerStatus;
cMutex mutex;
cCondVar locked;
cCondVar newSet;
cDvbTuner *bondedTuner;
bool bondedMaster;
bool bondedMasterFailed;
cString GetBondingParams(const cChannel *Channel = NULL) const;
void ClearEventQueue(void) const;
bool GetFrontendStatus(fe_status_t &Status) const;
void ExecuteDiseqc(const cDiseqc *Diseqc, unsigned int *Frequency);
void ResetToneAndVoltage(void);
bool SetFrontend(void);
virtual void Action(void);
public:
cDvbTuner(const cDvbDevice *Device, int Fd_Frontend, int Adapter, int Frontend, fe_delivery_system FrontendType);
virtual ~cDvbTuner();
bool Bond(cDvbTuner *Tuner);
void UnBond(void);
bool BondingOk(const cChannel *Channel, bool ConsiderOccupied = false) const;
cDvbTuner *GetBondedMaster(void);
const cChannel *GetTransponder(void) const { return &channel; }
uint32_t SubsystemId(void) const { return subsystemId; }
bool IsTunedTo(const cChannel *Channel) const;
void SetChannel(const cChannel *Channel);
bool Locked(int TimeoutMs = 0);
int GetSignalStrength(void) const;
int GetSignalQuality(void) const;
};
cMutex cDvbTuner::bondMutex;
cDvbTuner::cDvbTuner(const cDvbDevice *Device, int Fd_Frontend, int Adapter, int Frontend, fe_delivery_system FrontendType)
{
device = Device;
fd_frontend = Fd_Frontend;
adapter = Adapter;
frontend = Frontend;
frontendType = FrontendType;
subsystemId = cDvbDeviceProbe::GetSubsystemId(adapter, frontend);
tuneTimeout = 0;
lockTimeout = 0;
lastTimeoutReport = 0;
lastDiseqc = NULL;
scr = NULL;
tunerStatus = tsIdle;
bondedTuner = NULL;
bondedMaster = false;
bondedMasterFailed = false;
if (frontendType == SYS_DVBS || frontendType == SYS_DVBS2)
ResetToneAndVoltage(); // must explicitly turn on LNB power
SetDescription("tuner on frontend %d/%d", adapter, frontend);
Start();
}
cDvbTuner::~cDvbTuner()
{
tunerStatus = tsIdle;
newSet.Broadcast();
locked.Broadcast();
Cancel(3);
UnBond();
/* looks like this irritates the SCR switch, so let's leave it out for now
if (lastDiseqc && lastDiseqc->IsScr()) {
unsigned int Frequency = 0;
ExecuteDiseqc(lastDiseqc, &Frequency);
}
*/
}
bool cDvbTuner::Bond(cDvbTuner *Tuner)
{
cMutexLock MutexLock(&bondMutex);
if (!bondedTuner) {
if ((frontendType == SYS_DVBS || frontendType == SYS_DVBS2) && (Tuner->frontendType == SYS_DVBS || Tuner->frontendType == SYS_DVBS2)) {
ResetToneAndVoltage();
bondedMaster = false; // makes sure we don't disturb an existing master
bondedTuner = Tuner->bondedTuner ? Tuner->bondedTuner : Tuner;
Tuner->bondedTuner = this;
dsyslog("tuner %d/%d bonded with tuner %d/%d", adapter, frontend, bondedTuner->adapter, bondedTuner->frontend);
return true;
}
else
esyslog("ERROR: can't bond tuner %d/%d with tuner %d/%d (only DVB-S(2) tuners can be bonded)", adapter, frontend, Tuner->adapter, Tuner->frontend);
}
else
esyslog("ERROR: tuner %d/%d already bonded with tuner %d/%d, can't bond with tuner %d/%d", adapter, frontend, bondedTuner->adapter, bondedTuner->frontend, Tuner->adapter, Tuner->frontend);
return false;
}
void cDvbTuner::UnBond(void)
{
cMutexLock MutexLock(&bondMutex);
if (cDvbTuner *t = bondedTuner) {
dsyslog("tuner %d/%d unbonded from tuner %d/%d", adapter, frontend, bondedTuner->adapter, bondedTuner->frontend);
while (t->bondedTuner != this)
t = t->bondedTuner;
if (t == bondedTuner)
t->bondedTuner = NULL;
else
t->bondedTuner = bondedTuner;
bondedMaster = false; // another one will automatically become master whenever necessary
bondedTuner = NULL;
}
}
cString cDvbTuner::GetBondingParams(const cChannel *Channel) const
{
if (!Channel)
Channel = &channel;
cDvbTransponderParameters dtp(Channel->Parameters());
if (Setup.DiSEqC) {
if (const cDiseqc *diseqc = Diseqcs.Get(device->CardIndex() + 1, Channel->Source(), Channel->Frequency(), dtp.Polarization(), NULL))
return diseqc->Commands();
}
else {
bool ToneOff = Channel->Frequency() < (unsigned int)Setup.LnbSLOF;
bool VoltOff = dtp.Polarization() == 'V' || dtp.Polarization() == 'R';
return cString::sprintf("%c %c", ToneOff ? 't' : 'T', VoltOff ? 'v' : 'V');
}
return "";
}
bool cDvbTuner::BondingOk(const cChannel *Channel, bool ConsiderOccupied) const
{
cMutexLock MutexLock(&bondMutex);
if (cDvbTuner *t = bondedTuner) {
cString BondingParams = GetBondingParams(Channel);
do {
if (t->device->Receiving() || t->tunerStatus != tsIdle && (t->device == cDevice::ActualDevice() || ConsiderOccupied && t->device->Occupied())) {
if (strcmp(BondingParams, t->GetBondingParams()) != 0)
return false;
}
t = t->bondedTuner;
} while (t != bondedTuner);
}
return true;
}
cDvbTuner *cDvbTuner::GetBondedMaster(void)
{
if (!bondedTuner)
return this; // an unbonded tuner is always "master"
cMutexLock MutexLock(&bondMutex);
if (bondedMaster) {
if (!bondedMasterFailed)
return this;
else
bondedMaster = false;
}
// This tuner is bonded, but it's not the master, so let's see if there is a master at all:
if (cDvbTuner *t = bondedTuner) {
while (t != this) {
if (t->bondedMaster)
return t;
t = t->bondedTuner;
}
}
// None of the other bonded tuners is master, so make this one the master:
cDvbTuner *t = this;
if (bondedMasterFailed) {
// This one has failed, so switch to the next one:
t = bondedTuner;
t->bondedMasterFailed = false;
cMutexLock MutexLock(&t->mutex);
t->channel = channel;
t->tunerStatus = tsSet;
}
t->bondedMaster = true;
dsyslog("tuner %d/%d is now bonded master", t->adapter, t->frontend);
return t;
}
bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
{
if (tunerStatus == tsIdle)
return false; // not tuned to
if (channel.Source() != Channel->Source() || channel.Transponder() != Channel->Transponder())
return false; // sufficient mismatch
// Polarization is already checked as part of the Transponder.
return strcmp(channel.Parameters(), Channel->Parameters()) == 0;
}
void cDvbTuner::SetChannel(const cChannel *Channel)
{
if (Channel) {
if (bondedTuner) {
cMutexLock MutexLock(&bondMutex);
cDvbTuner *BondedMaster = GetBondedMaster();
if (BondedMaster == this) {
if (strcmp(GetBondingParams(Channel), GetBondingParams()) != 0) {
// switching to a completely different band, so set all others to idle:
for (cDvbTuner *t = bondedTuner; t && t != this; t = t->bondedTuner)
t->SetChannel(NULL);
}
}
else if (!BondedMaster->device->Receiving())
BondedMaster->SetChannel(Channel);
}
cMutexLock MutexLock(&mutex);
if (!IsTunedTo(Channel))
tunerStatus = tsSet;
channel = *Channel;
lastTimeoutReport = 0;
newSet.Broadcast();
}
else {
cMutexLock MutexLock(&mutex);
tunerStatus = tsIdle;
ResetToneAndVoltage();
}
}
bool cDvbTuner::Locked(int TimeoutMs)
{
bool isLocked = (tunerStatus >= tsLocked);
if (isLocked || !TimeoutMs)
return isLocked;
cMutexLock MutexLock(&mutex);
if (TimeoutMs && tunerStatus < tsLocked)
locked.TimedWait(mutex, TimeoutMs);
return tunerStatus >= tsLocked;
}
void cDvbTuner::ClearEventQueue(void) const
{
cPoller Poller(fd_frontend);
if (Poller.Poll(TUNER_POLL_TIMEOUT)) {
dvb_frontend_event Event;
while (ioctl(fd_frontend, FE_GET_EVENT, &Event) == 0)
; // just to clear the event queue - we'll read the actual status below
}
}
bool cDvbTuner::GetFrontendStatus(fe_status_t &Status) const
{
ClearEventQueue();
while (1) {
if (ioctl(fd_frontend, FE_READ_STATUS, &Status) != -1)
return true;
if (errno != EINTR)
break;
}
return false;
}
//#define DEBUG_SIGNALSTRENGTH
//#define DEBUG_SIGNALQUALITY
int cDvbTuner::GetSignalStrength(void) const
{
ClearEventQueue();
uint16_t Signal;
while (1) {
if (ioctl(fd_frontend, FE_READ_SIGNAL_STRENGTH, &Signal) != -1)
break;
if (errno != EINTR)
return -1;
}
uint16_t MaxSignal = 0xFFFF; // Let's assume the default is using the entire range.
// Use the subsystemId to identify individual devices in case they need
// special treatment to map their Signal value into the range 0...0xFFFF.
switch (subsystemId) {
case 0x13C21019: MaxSignal = 670; break; // TT-budget S2-3200 (DVB-S/DVB-S2)
}
int s = int(Signal) * 100 / MaxSignal;
if (s > 100)
s = 100;
#ifdef DEBUG_SIGNALSTRENGTH
fprintf(stderr, "FE %d/%d: %08X S = %04X %04X %3d%%\n", adapter, frontend, subsystemId, MaxSignal, Signal, s);
#endif
return s;
}
#define LOCK_THRESHOLD 5 // indicates that all 5 FE_HAS_* flags are set
int cDvbTuner::GetSignalQuality(void) const
{
fe_status_t Status;
if (GetFrontendStatus(Status)) {
// Actually one would expect these checks to be done from FE_HAS_SIGNAL to FE_HAS_LOCK, but some drivers (like the stb0899) are broken, so FE_HAS_LOCK is the only one that (hopefully) is generally reliable...
if ((Status & FE_HAS_LOCK) == 0) {
if ((Status & FE_HAS_SIGNAL) == 0)
return 0;
if ((Status & FE_HAS_CARRIER) == 0)
return 1;
if ((Status & FE_HAS_VITERBI) == 0)
return 2;
if ((Status & FE_HAS_SYNC) == 0)
return 3;
return 4;
}
bool HasSnr = true;
uint16_t Snr;
while (1) {
if (ioctl(fd_frontend, FE_READ_SNR, &Snr) != -1)
break;
if (errno == EOPNOTSUPP) {
Snr = 0xFFFF;
HasSnr = false;
break;
}
if (errno != EINTR)
return -1;
}
bool HasBer = true;
uint32_t Ber;
while (1) {
if (ioctl(fd_frontend, FE_READ_BER, &Ber) != -1)
break;
if (errno == EOPNOTSUPP) {
Ber = 0;
HasBer = false;
break;
}
if (errno != EINTR)
return -1;
}
bool HasUnc = true;
uint32_t Unc;
while (1) {
if (ioctl(fd_frontend, FE_READ_UNCORRECTED_BLOCKS, &Unc) != -1)
break;
if (errno == EOPNOTSUPP) {
Unc = 0;
HasUnc = false;
break;
}
if (errno != EINTR)
return -1;
}
uint16_t MaxSnr = 0xFFFF; // Let's assume the default is using the entire range.
// Use the subsystemId to identify individual devices in case they need
// special treatment to map their Snr value into the range 0...0xFFFF.
switch (subsystemId) {
case 0x13C21019: MaxSnr = 200; break; // TT-budget S2-3200 (DVB-S/DVB-S2)
}
int a = int(Snr) * 100 / MaxSnr;
int b = 100 - (Unc * 10 + (Ber / 256) * 5);
if (b < 0)
b = 0;
int q = LOCK_THRESHOLD + a * b * (100 - LOCK_THRESHOLD) / 100 / 100;
if (q > 100)
q = 100;
#ifdef DEBUG_SIGNALQUALITY
fprintf(stderr, "FE %d/%d: %08X Q = %04X %04X %5d %5d %3d%%\n", adapter, frontend, subsystemId, MaxSnr, Snr, HasBer ? int(Ber) : -1, HasUnc ? int(Unc) : -1, q);
#endif
return q;
}
return -1;
}
static unsigned int FrequencyToHz(unsigned int f)
{
while (f && f < 1000000)
f *= 1000;
return f;
}
void cDvbTuner::ExecuteDiseqc(const cDiseqc *Diseqc, unsigned int *Frequency)
{
struct dvb_diseqc_master_cmd cmd;
const char *CurrentAction = NULL;
for (;;) {
cmd.msg_len = sizeof(cmd.msg);
cDiseqc::eDiseqcActions da = Diseqc->Execute(&CurrentAction, cmd.msg, &cmd.msg_len, scr, Frequency);
if (da == cDiseqc::daNone)
break;
switch (da) {
case cDiseqc::daToneOff: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF)); break;
case cDiseqc::daToneOn: CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_ON)); break;
case cDiseqc::daVoltage13: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13)); break;
case cDiseqc::daVoltage18: CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_18)); break;
case cDiseqc::daMiniA: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_A)); break;
case cDiseqc::daMiniB: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_BURST, SEC_MINI_B)); break;
case cDiseqc::daCodes: CHECK(ioctl(fd_frontend, FE_DISEQC_SEND_MASTER_CMD, &cmd)); break;
default: esyslog("ERROR: unknown diseqc command %d", da);
}
}
if (scr)
ResetToneAndVoltage(); // makes sure we don't block the bus!
}
void cDvbTuner::ResetToneAndVoltage(void)
{
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, SEC_VOLTAGE_13));
CHECK(ioctl(fd_frontend, FE_SET_TONE, SEC_TONE_OFF));
}
bool cDvbTuner::SetFrontend(void)
{
#define MAXFRONTENDCMDS 16
#define SETCMD(c, d) { Frontend[CmdSeq.num].cmd = (c);\
Frontend[CmdSeq.num].u.data = (d);\
if (CmdSeq.num++ > MAXFRONTENDCMDS) {\
esyslog("ERROR: too many tuning commands on frontend %d/%d", adapter, frontend);\
return false;\
}\
}
dtv_property Frontend[MAXFRONTENDCMDS];
memset(&Frontend, 0, sizeof(Frontend));
dtv_properties CmdSeq;
memset(&CmdSeq, 0, sizeof(CmdSeq));
CmdSeq.props = Frontend;
SETCMD(DTV_CLEAR, 0);
if (ioctl(fd_frontend, FE_SET_PROPERTY, &CmdSeq) < 0) {
esyslog("ERROR: frontend %d/%d: %m", adapter, frontend);
return false;
}
CmdSeq.num = 0;
cDvbTransponderParameters dtp(channel.Parameters());
if (frontendType == SYS_DVBS || frontendType == SYS_DVBS2) {
unsigned int frequency = channel.Frequency();
if (Setup.DiSEqC) {
if (const cDiseqc *diseqc = Diseqcs.Get(device->CardIndex() + 1, channel.Source(), frequency, dtp.Polarization(), &scr)) {
frequency -= diseqc->Lof();
if (diseqc != lastDiseqc || diseqc->IsScr()) {
if (GetBondedMaster() == this) {
ExecuteDiseqc(diseqc, &frequency);
if (frequency == 0)
return false;
}
else
ResetToneAndVoltage();
lastDiseqc = diseqc;
}
}
else {
esyslog("ERROR: no DiSEqC parameters found for channel %d", channel.Number());
return false;
}
}
else {
int tone = SEC_TONE_OFF;
if (frequency < (unsigned int)Setup.LnbSLOF) {
frequency -= Setup.LnbFrequLo;
tone = SEC_TONE_OFF;
}
else {
frequency -= Setup.LnbFrequHi;
tone = SEC_TONE_ON;
}
int volt = (dtp.Polarization() == 'V' || dtp.Polarization() == 'R') ? SEC_VOLTAGE_13 : SEC_VOLTAGE_18;
if (GetBondedMaster() != this) {
tone = SEC_TONE_OFF;
volt = SEC_VOLTAGE_13;
}
CHECK(ioctl(fd_frontend, FE_SET_VOLTAGE, volt));
CHECK(ioctl(fd_frontend, FE_SET_TONE, tone));
}
frequency = abs(frequency); // Allow for C-band, where the frequency is less than the LOF
// DVB-S/DVB-S2 (common parts)
SETCMD(DTV_DELIVERY_SYSTEM, dtp.System());
SETCMD(DTV_FREQUENCY, frequency * 1000UL);
SETCMD(DTV_MODULATION, dtp.Modulation());
SETCMD(DTV_SYMBOL_RATE, channel.Srate() * 1000UL);
SETCMD(DTV_INNER_FEC, dtp.CoderateH());
SETCMD(DTV_INVERSION, dtp.Inversion());
if (dtp.System() == SYS_DVBS2) {
if (frontendType == SYS_DVBS2) {
// DVB-S2
SETCMD(DTV_PILOT, PILOT_AUTO);
SETCMD(DTV_ROLLOFF, dtp.RollOff());
}
else {
esyslog("ERROR: frontend %d/%d doesn't provide DVB-S2", adapter, frontend);
return false;
}
}
else {
// DVB-S
SETCMD(DTV_ROLLOFF, ROLLOFF_35); // DVB-S always has a ROLLOFF of 0.35
}
tuneTimeout = DVBS_TUNE_TIMEOUT;
lockTimeout = DVBS_LOCK_TIMEOUT;
}
else if (frontendType == SYS_DVBC_ANNEX_AC || frontendType == SYS_DVBC_ANNEX_B) {
// DVB-C
SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
SETCMD(DTV_INVERSION, dtp.Inversion());
SETCMD(DTV_SYMBOL_RATE, channel.Srate() * 1000UL);
SETCMD(DTV_INNER_FEC, dtp.CoderateH());
SETCMD(DTV_MODULATION, dtp.Modulation());
tuneTimeout = DVBC_TUNE_TIMEOUT;
lockTimeout = DVBC_LOCK_TIMEOUT;
}
else if (frontendType == SYS_DVBT) {
// DVB-T
SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
SETCMD(DTV_INVERSION, dtp.Inversion());
SETCMD(DTV_BANDWIDTH_HZ, dtp.Bandwidth());
SETCMD(DTV_CODE_RATE_HP, dtp.CoderateH());
SETCMD(DTV_CODE_RATE_LP, dtp.CoderateL());
SETCMD(DTV_MODULATION, dtp.Modulation());
SETCMD(DTV_TRANSMISSION_MODE, dtp.Transmission());
SETCMD(DTV_GUARD_INTERVAL, dtp.Guard());
SETCMD(DTV_HIERARCHY, dtp.Hierarchy());
tuneTimeout = DVBT_TUNE_TIMEOUT;
lockTimeout = DVBT_LOCK_TIMEOUT;
}
else if (frontendType == SYS_ATSC) {
// ATSC
SETCMD(DTV_DELIVERY_SYSTEM, frontendType);
SETCMD(DTV_FREQUENCY, FrequencyToHz(channel.Frequency()));
SETCMD(DTV_INVERSION, dtp.Inversion());
SETCMD(DTV_MODULATION, dtp.Modulation());
tuneTimeout = ATSC_TUNE_TIMEOUT;
lockTimeout = ATSC_LOCK_TIMEOUT;
}
else {
esyslog("ERROR: attempt to set channel with unknown DVB frontend type");
return false;
}
SETCMD(DTV_TUNE, 0);
if (ioctl(fd_frontend, FE_SET_PROPERTY, &CmdSeq) < 0) {
esyslog("ERROR: frontend %d/%d: %m", adapter, frontend);
return false;
}
return true;
}
void cDvbTuner::Action(void)
{
cTimeMs Timer;
bool LostLock = false;
fe_status_t Status = (fe_status_t)0;
while (Running()) {
fe_status_t NewStatus;
if (GetFrontendStatus(NewStatus))
Status = NewStatus;
cMutexLock MutexLock(&mutex);
switch (tunerStatus) {
case tsIdle:
break;
case tsSet:
tunerStatus = SetFrontend() ? tsTuned : tsIdle;
Timer.Set(tuneTimeout + (scr ? rand() % SCR_RANDOM_TIMEOUT : 0));
continue;
case tsTuned:
if (Timer.TimedOut()) {
tunerStatus = tsSet;
lastDiseqc = NULL;
if (time(NULL) - lastTimeoutReport > 60) { // let's not get too many of these
isyslog("frontend %d/%d timed out while tuning to channel %d, tp %d", adapter, frontend, channel.Number(), channel.Transponder());
lastTimeoutReport = time(NULL);
}
cMutexLock MutexLock(&bondMutex);
if (bondedTuner && bondedMaster)
bondedMasterFailed = true; // give an other tuner a chance in case the sat cable was disconnected
continue;
}
case tsLocked:
if (Status & FE_REINIT) {
tunerStatus = tsSet;
lastDiseqc = NULL;
isyslog("frontend %d/%d was reinitialized", adapter, frontend);
lastTimeoutReport = 0;
continue;
}
else if (Status & FE_HAS_LOCK) {
if (LostLock) {
isyslog("frontend %d/%d regained lock on channel %d, tp %d", adapter, frontend, channel.Number(), channel.Transponder());
LostLock = false;
}
tunerStatus = tsLocked;
locked.Broadcast();
lastTimeoutReport = 0;
}
else if (tunerStatus == tsLocked) {
LostLock = true;
isyslog("frontend %d/%d lost lock on channel %d, tp %d", adapter, frontend, channel.Number(), channel.Transponder());
tunerStatus = tsTuned;
Timer.Set(lockTimeout);
lastTimeoutReport = 0;
continue;
}
break;
default: esyslog("ERROR: unknown tuner status %d", tunerStatus);
}
if (tunerStatus != tsTuned)
newSet.TimedWait(mutex, 1000);
}
}
// --- cDvbSourceParam -------------------------------------------------------
class cDvbSourceParam : public cSourceParam {
private:
int param;
int srate;
cDvbTransponderParameters dtp;
public:
cDvbSourceParam(char Source, const char *Description);
virtual void SetData(cChannel *Channel);
virtual void GetData(cChannel *Channel);
virtual cOsdItem *GetOsdItem(void);
};
cDvbSourceParam::cDvbSourceParam(char Source, const char *Description)
:cSourceParam(Source, Description)
{
param = 0;
srate = 0;
}
void cDvbSourceParam::SetData(cChannel *Channel)
{
srate = Channel->Srate();
dtp.Parse(Channel->Parameters());
param = 0;
}
void cDvbSourceParam::GetData(cChannel *Channel)
{
Channel->SetTransponderData(Channel->Source(), Channel->Frequency(), srate, dtp.ToString(Source()), true);
}
cOsdItem *cDvbSourceParam::GetOsdItem(void)
{
char type = Source();
#undef ST
#define ST(s) if (strchr(s, type))
switch (param++) {
case 0: ST(" S ") return new cMenuEditChrItem( tr("Polarization"), &dtp.polarization, "HVLR"); else return GetOsdItem();
case 1: ST(" S ") return new cMenuEditMapItem( tr("System"), &dtp.system, SystemValues); else return GetOsdItem();
case 2: ST(" CS ") return new cMenuEditIntItem( tr("Srate"), &srate); else return GetOsdItem();
case 3: ST("ACST") return new cMenuEditMapItem( tr("Inversion"), &dtp.inversion, InversionValues); else return GetOsdItem();
case 4: ST(" CST") return new cMenuEditMapItem( tr("CoderateH"), &dtp.coderateH, CoderateValues); else return GetOsdItem();
case 5: ST(" T") return new cMenuEditMapItem( tr("CoderateL"), &dtp.coderateL, CoderateValues); else return GetOsdItem();
case 6: ST("ACST") return new cMenuEditMapItem( tr("Modulation"), &dtp.modulation, ModulationValues); else return GetOsdItem();
case 7: ST(" T") return new cMenuEditMapItem( tr("Bandwidth"), &dtp.bandwidth, BandwidthValues); else return GetOsdItem();
case 8: ST(" T") return new cMenuEditMapItem( tr("Transmission"), &dtp.transmission, TransmissionValues); else return GetOsdItem();
case 9: ST(" T") return new cMenuEditMapItem( tr("Guard"), &dtp.guard, GuardValues); else return GetOsdItem();
case 10: ST(" T") return new cMenuEditMapItem( tr("Hierarchy"), &dtp.hierarchy, HierarchyValues); else return GetOsdItem();
case 11: ST(" S ") return new cMenuEditMapItem( tr("Rolloff"), &dtp.rollOff, RollOffValues); else return GetOsdItem();
default: return NULL;
}
return NULL;
}
// --- cDvbDevice ------------------------------------------------------------
int cDvbDevice::setTransferModeForDolbyDigital = 1;
cMutex cDvbDevice::bondMutex;
const char *DeliverySystems[] = {
"UNDEFINED",
"DVB-C",
"DVB-C",
"DVB-T",
"DSS",
"DVB-S",
"DVB-S2",
"DVB-H",
"ISDBT",
"ISDBS",
"ISDBC",
"ATSC",
"ATSCMH",
"DMBTH",
"CMMB",
"DAB",
NULL
};
cDvbDevice::cDvbDevice(int Adapter, int Frontend)
{
adapter = Adapter;
frontend = Frontend;
ciAdapter = NULL;
dvbTuner = NULL;
frontendType = SYS_UNDEFINED;
numProvidedSystems = 0;
bondedDevice = NULL;
needsDetachBondedReceivers = false;
// Devices that are present on all card types:
int fd_frontend = DvbOpen(DEV_DVB_FRONTEND, adapter, frontend, O_RDWR | O_NONBLOCK);
// Common Interface:
fd_ca = DvbOpen(DEV_DVB_CA, adapter, frontend, O_RDWR);
if (fd_ca >= 0)
ciAdapter = cDvbCiAdapter::CreateCiAdapter(this, fd_ca);
// The DVR device (will be opened and closed as needed):
fd_dvr = -1;
// We only check the devices that must be present - the others will be checked before accessing them://XXX
if (fd_frontend >= 0) {
if (ioctl(fd_frontend, FE_GET_INFO, &frontendInfo) >= 0) {
switch (frontendInfo.type) {
case FE_QPSK: frontendType = (frontendInfo.caps & FE_CAN_2G_MODULATION) ? SYS_DVBS2 : SYS_DVBS; break;
case FE_OFDM: frontendType = SYS_DVBT; break;
case FE_QAM: frontendType = SYS_DVBC_ANNEX_AC; break;
case FE_ATSC: frontendType = SYS_ATSC; break;
default: esyslog("ERROR: unknown frontend type %d on frontend %d/%d", frontendInfo.type, adapter, frontend);
}
}
else
LOG_ERROR;
if (frontendType != SYS_UNDEFINED) {
numProvidedSystems++;
if (frontendType == SYS_DVBS2)
numProvidedSystems++;
char Modulations[64];
char *p = Modulations;
if (frontendInfo.caps & FE_CAN_QPSK) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(QPSK, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_QAM_16) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(QAM_16, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_QAM_32) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(QAM_32, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_QAM_64) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(QAM_64, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_QAM_128) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(QAM_128, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_QAM_256) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(QAM_256, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_8VSB) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(VSB_8, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_16VSB) { numProvidedSystems++; p += sprintf(p, ",%s", MapToUserString(VSB_16, ModulationValues)); }
if (frontendInfo.caps & FE_CAN_TURBO_FEC){numProvidedSystems++; p += sprintf(p, ",%s", "TURBO_FEC"); }
if (p != Modulations)
p = Modulations + 1; // skips first ','
else
p = (char *)"unknown modulations";
isyslog("frontend %d/%d provides %s with %s (\"%s\")", adapter, frontend, DeliverySystems[frontendType], p, frontendInfo.name);
dvbTuner = new cDvbTuner(this, fd_frontend, adapter, frontend, frontendType);
}
}
else
esyslog("ERROR: can't open DVB device %d/%d", adapter, frontend);
StartSectionHandler();
}
cDvbDevice::~cDvbDevice()
{
StopSectionHandler();
delete dvbTuner;
delete ciAdapter;
UnBond();
// We're not explicitly closing any device files here, since this sometimes
// caused segfaults. Besides, the program is about to terminate anyway...
}
cString cDvbDevice::DvbName(const char *Name, int Adapter, int Frontend)
{
return cString::sprintf("%s%d/%s%d", DEV_DVB_ADAPTER, Adapter, Name, Frontend);
}
int cDvbDevice::DvbOpen(const char *Name, int Adapter, int Frontend, int Mode, bool ReportError)
{
cString FileName = DvbName(Name, Adapter, Frontend);
int fd = open(FileName, Mode);
if (fd < 0 && ReportError)
LOG_ERROR_STR(*FileName);
return fd;
}
bool cDvbDevice::Exists(int Adapter, int Frontend)
{
cString FileName = DvbName(DEV_DVB_FRONTEND, Adapter, Frontend);
if (access(FileName, F_OK) == 0) {
int f = open(FileName, O_RDONLY);
if (f >= 0) {
close(f);
return true;
}
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)
{
new cDvbSourceParam('A', "ATSC");
new cDvbSourceParam('C', "DVB-C");
new cDvbSourceParam('S', "DVB-S");
new cDvbSourceParam('T', "DVB-T");
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::BondDevices(const char *Bondings)
{
UnBondDevices();
if (Bondings) {
cSatCableNumbers SatCableNumbers(MAXDEVICES, Bondings);
for (int i = 0; i < cDevice::NumDevices(); i++) {
int d = SatCableNumbers.FirstDeviceIndex(i);
if (d >= 0) {
int ErrorDevice = 0;
if (cDevice *Device1 = cDevice::GetDevice(i)) {
if (cDevice *Device2 = cDevice::GetDevice(d)) {
if (cDvbDevice *DvbDevice1 = dynamic_cast<cDvbDevice *>(Device1)) {
if (cDvbDevice *DvbDevice2 = dynamic_cast<cDvbDevice *>(Device2)) {
if (!DvbDevice2->Bond(DvbDevice1))
return false; // Bond() has already logged the error
}
else
ErrorDevice = d + 1;
}
else
ErrorDevice = i + 1;
if (ErrorDevice) {
esyslog("ERROR: device '%d' in device bondings '%s' is not a cDvbDevice", ErrorDevice, Bondings);
return false;
}
}
else
ErrorDevice = d + 1;
}
else
ErrorDevice = i + 1;
if (ErrorDevice) {
esyslog("ERROR: unknown device '%d' in device bondings '%s'", ErrorDevice, Bondings);
return false;
}
}
}
}
return true;
}
void cDvbDevice::UnBondDevices(void)
{
for (int i = 0; i < cDevice::NumDevices(); i++) {
if (cDvbDevice *d = dynamic_cast<cDvbDevice *>(cDevice::GetDevice(i)))
d->UnBond();
}
}
bool cDvbDevice::Bond(cDvbDevice *Device)
{
cMutexLock MutexLock(&bondMutex);
if (!bondedDevice) {
if (Device != this) {
if ((frontendType == SYS_DVBS || frontendType == SYS_DVBS2) && (Device->frontendType == SYS_DVBS || Device->frontendType == SYS_DVBS2)) {
if (dvbTuner && Device->dvbTuner && dvbTuner->Bond(Device->dvbTuner)) {
bondedDevice = Device->bondedDevice ? Device->bondedDevice : Device;
Device->bondedDevice = this;
dsyslog("device %d bonded with device %d", CardIndex() + 1, bondedDevice->CardIndex() + 1);
return true;
}
}
else
esyslog("ERROR: can't bond device %d with device %d (only DVB-S(2) devices can be bonded)", CardIndex() + 1, Device->CardIndex() + 1);
}
else
esyslog("ERROR: can't bond device %d with itself", CardIndex() + 1);
}
else
esyslog("ERROR: device %d already bonded with device %d, can't bond with device %d", CardIndex() + 1, bondedDevice->CardIndex() + 1, Device->CardIndex() + 1);
return false;
}
void cDvbDevice::UnBond(void)
{
cMutexLock MutexLock(&bondMutex);
if (cDvbDevice *d = bondedDevice) {
if (dvbTuner)
dvbTuner->UnBond();
dsyslog("device %d unbonded from device %d", CardIndex() + 1, bondedDevice->CardIndex() + 1);
while (d->bondedDevice != this)
d = d->bondedDevice;
if (d == bondedDevice)
d->bondedDevice = NULL;
else
d->bondedDevice = bondedDevice;
bondedDevice = NULL;
}
}
bool cDvbDevice::BondingOk(const cChannel *Channel, bool ConsiderOccupied) const
{
cMutexLock MutexLock(&bondMutex);
if (bondedDevice)
return dvbTuner && dvbTuner->BondingOk(Channel, ConsiderOccupied);
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::stAtsc && (frontendType == SYS_ATSC)
|| 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
cDvbTransponderParameters dtp(Channel->Parameters());
if (dtp.System() == SYS_DVBS2 && frontendType == SYS_DVBS ||
dtp.Modulation() == QPSK && !(frontendInfo.caps & FE_CAN_QPSK) ||
dtp.Modulation() == QAM_16 && !(frontendInfo.caps & FE_CAN_QAM_16) ||
dtp.Modulation() == QAM_32 && !(frontendInfo.caps & FE_CAN_QAM_32) ||
dtp.Modulation() == QAM_64 && !(frontendInfo.caps & FE_CAN_QAM_64) ||
dtp.Modulation() == QAM_128 && !(frontendInfo.caps & FE_CAN_QAM_128) ||
dtp.Modulation() == QAM_256 && !(frontendInfo.caps & FE_CAN_QAM_256) ||
dtp.Modulation() == QAM_AUTO && !(frontendInfo.caps & FE_CAN_QAM_AUTO) ||
dtp.Modulation() == VSB_8 && !(frontendInfo.caps & FE_CAN_8VSB) ||
dtp.Modulation() == VSB_16 && !(frontendInfo.caps & FE_CAN_16VSB) ||
dtp.Modulation() == PSK_8 && !(frontendInfo.caps & FE_CAN_TURBO_FEC) && dtp.System() == SYS_DVBS) // "turbo fec" is a non standard FEC used by North American broadcasters - this is a best guess to determine this condition
return false; // requires modulation system which frontend doesn't provide
if (!cSource::IsSat(Channel->Source()) ||
(!Setup.DiSEqC || Diseqcs.Get(CardIndex() + 1, Channel->Source(), Channel->Frequency(), dtp.Polarization(), NULL)))
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;
needsDetachBondedReceivers = false;
if (dvbTuner && ProvidesTransponder(Channel)) {
result = hasPriority;
if (Priority >= 0) {
if (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 (result) {
if (!BondingOk(Channel)) {
// This device is bonded, so we need to check the priorities of the others:
for (cDvbDevice *d = bondedDevice; d && d != this; d = d->bondedDevice) {
if (d->Priority() >= Priority) {
result = false;
break;
}
}
needsDetachBondedReceivers = true;
needsDetachReceivers = true;
}
}
}
}
if (NeedsDetachReceivers)
*NeedsDetachReceivers = needsDetachReceivers;
return result;
}
bool cDvbDevice::ProvidesEIT(void) const
{
return dvbTuner != NULL;
}
int cDvbDevice::NumProvidedSystems(void) const
{
return numProvidedSystems;
}
int cDvbDevice::SignalStrength(void) const
{
return dvbTuner ? dvbTuner->GetSignalStrength() : -1;
}
int cDvbDevice::SignalQuality(void) const
{
return dvbTuner ? dvbTuner->GetSignalQuality() : -1;
}
const cChannel *cDvbDevice::GetCurrentlyTunedTransponder(void) const
{
return dvbTuner ? dvbTuner->GetTransponder() : NULL;
}
bool cDvbDevice::IsTunedToTransponder(const cChannel *Channel) const
{
return dvbTuner ? dvbTuner->IsTunedTo(Channel) : false;
}
bool cDvbDevice::MaySwitchTransponder(const cChannel *Channel) const
{
return BondingOk(Channel, true) && cDevice::MaySwitchTransponder(Channel);
}
bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
{
if (dvbTuner)
dvbTuner->SetChannel(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;
}
void cDvbDevice::DetachAllReceivers(void)
{
cMutexLock MutexLock(&bondMutex);
cDvbDevice *d = this;
do {
d->cDevice::DetachAllReceivers();
d = d->bondedDevice;
} while (d && d != this && needsDetachBondedReceivers);
needsDetachBondedReceivers = false;
}
// --- cDvbDeviceProbe -------------------------------------------------------
cList<cDvbDeviceProbe> DvbDeviceProbes;
cDvbDeviceProbe::cDvbDeviceProbe(void)
{
DvbDeviceProbes.Add(this);
}
cDvbDeviceProbe::~cDvbDeviceProbe()
{
DvbDeviceProbes.Del(this, false);
}
uint32_t cDvbDeviceProbe::GetSubsystemId(int Adapter, int Frontend)
{
cString FileName;
cReadLine ReadLine;
FILE *f = NULL;
uint32_t SubsystemId = 0;
FileName = cString::sprintf("/sys/class/dvb/dvb%d.frontend%d/device/subsystem_vendor", Adapter, Frontend);
if ((f = fopen(FileName, "r")) != NULL) {
if (char *s = ReadLine.Read(f))
SubsystemId = strtoul(s, NULL, 0) << 16;
fclose(f);
}
FileName = cString::sprintf("/sys/class/dvb/dvb%d.frontend%d/device/subsystem_device", Adapter, Frontend);
if ((f = fopen(FileName, "r")) != NULL) {
if (char *s = ReadLine.Read(f))
SubsystemId |= strtoul(s, NULL, 0);
fclose(f);
}
return SubsystemId;
}
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