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/*
* dvbdevice.h: The DVB device tuner interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.h 2.15 2011/06/02 13:20:05 kls Exp $
*/
#ifndef __DVBDEVICE_H
#define __DVBDEVICE_H
#include <sys/mman.h> // FIXME: workaround for broken linux-dvb header files
#include <linux/dvb/frontend.h>
#include <linux/dvb/version.h>
#include "device.h"
#if DVB_API_VERSION < 5
#error VDR requires Linux DVB driver API version 5.0 or higher!
#endif
#define MAXDVBDEVICES 8
#define DEV_VIDEO "/dev/video"
#define DEV_DVB_ADAPTER "/dev/dvb/adapter"
#define DEV_DVB_OSD "osd"
#define DEV_DVB_FRONTEND "frontend"
#define DEV_DVB_DVR "dvr"
#define DEV_DVB_DEMUX "demux"
#define DEV_DVB_VIDEO "video"
#define DEV_DVB_AUDIO "audio"
#define DEV_DVB_CA "ca"
struct tDvbParameterMap {
int userValue;
int driverValue;
const char *userString;
};
const char *MapToUserString(int Value, const tDvbParameterMap *Map);
int MapToUser(int Value, const tDvbParameterMap *Map, const char **String = NULL);
int MapToDriver(int Value, const tDvbParameterMap *Map);
int UserIndex(int Value, const tDvbParameterMap *Map);
int DriverIndex(int Value, const tDvbParameterMap *Map);
extern const tDvbParameterMap InversionValues[];
extern const tDvbParameterMap BandwidthValues[];
extern const tDvbParameterMap CoderateValues[];
extern const tDvbParameterMap ModulationValues[];
extern const tDvbParameterMap SystemValues[];
extern const tDvbParameterMap TransmissionValues[];
extern const tDvbParameterMap GuardValues[];
extern const tDvbParameterMap HierarchyValues[];
extern const tDvbParameterMap RollOffValues[];
class cDvbTransponderParameters {
friend class cDvbSourceParam;
private:
char polarization;
int inversion;
int bandwidth;
int coderateH;
int coderateL;
int modulation;
int system;
int transmission;
int guard;
int hierarchy;
int rollOff;
int PrintParameter(char *p, char Name, int Value) const;
const char *ParseParameter(const char *s, int &Value, const tDvbParameterMap *Map);
public:
cDvbTransponderParameters(const char *Parameters = NULL);
char Polarization(void) const { return polarization; }
int Inversion(void) const { return inversion; }
int Bandwidth(void) const { return bandwidth; }
int CoderateH(void) const { return coderateH; }
int CoderateL(void) const { return coderateL; }
int Modulation(void) const { return modulation; }
int System(void) const { return system; }
int Transmission(void) const { return transmission; }
int Guard(void) const { return guard; }
int Hierarchy(void) const { return hierarchy; }
int RollOff(void) const { return rollOff; }
void SetPolarization(char Polarization) { polarization = Polarization; }
void SetInversion(int Inversion) { inversion = Inversion; }
void SetBandwidth(int Bandwidth) { bandwidth = Bandwidth; }
void SetCoderateH(int CoderateH) { coderateH = CoderateH; }
void SetCoderateL(int CoderateL) { coderateL = CoderateL; }
void SetModulation(int Modulation) { modulation = Modulation; }
void SetSystem(int System) { system = System; }
void SetTransmission(int Transmission) { transmission = Transmission; }
void SetGuard(int Guard) { guard = Guard; }
void SetHierarchy(int Hierarchy) { hierarchy = Hierarchy; }
void SetRollOff(int RollOff) { rollOff = RollOff; }
cString ToString(char Type) const;
bool Parse(const char *s);
};
class cDvbTuner;
/// The cDvbDevice implements a DVB device which can be accessed through the Linux DVB driver API.
class cDvbDevice : public cDevice {
protected:
static cString DvbName(const char *Name, int Adapter, int Frontend);
static int DvbOpen(const char *Name, int Adapter, int Frontend, int Mode, bool ReportError = false);
private:
static bool Exists(int Adapter, int Frontend);
///< Checks whether the given adapter/frontend exists.
static bool Probe(int Adapter, int Frontend);
///< Probes for existing DVB devices.
public:
static bool Initialize(void);
///< Initializes the DVB devices.
///< Must be called before accessing any DVB functions.
///< \return True if any devices are available.
protected:
int adapter, frontend;
private:
dvb_frontend_info frontendInfo;
int numProvidedSystems;
fe_delivery_system frontendType;
int fd_dvr, fd_ca;
public:
cDvbDevice(int Adapter, int Frontend);
virtual ~cDvbDevice();
virtual bool Ready(void);
// Common Interface facilities:
private:
cCiAdapter *ciAdapter;
// Channel facilities
private:
cDvbTuner *dvbTuner;
public:
virtual bool ProvidesSource(int Source) const;
virtual bool ProvidesTransponder(const cChannel *Channel) const;
virtual bool ProvidesChannel(const cChannel *Channel, int Priority = -1, bool *NeedsDetachReceivers = NULL) const;
virtual int NumProvidedSystems(void) const;
virtual int SignalStrength(void) const;
virtual int SignalQuality(void) const;
virtual const cChannel *GetCurrentlyTunedTransponder(void) const;
virtual bool IsTunedToTransponder(const cChannel *Channel);
protected:
virtual bool SetChannelDevice(const cChannel *Channel, bool LiveView);
public:
virtual bool HasLock(int TimeoutMs = 0);
// PID handle facilities
protected:
virtual bool SetPid(cPidHandle *Handle, int Type, bool On);
// Section filter facilities
protected:
virtual int OpenFilter(u_short Pid, u_char Tid, u_char Mask);
virtual void CloseFilter(int Handle);
// Common Interface facilities:
public:
virtual bool HasCi(void);
// Audio facilities
protected:
static int setTransferModeForDolbyDigital;
public:
static void SetTransferModeForDolbyDigital(int Mode); // needs to be here for backwards compatibilty
///< Controls how the DVB device handles Transfer Mode when replaying
///< Dolby Digital audio.
///< 0 = don't set "audio bypass" in driver/firmware, don't force Transfer Mode
///< 1 = set "audio bypass" in driver/firmware, force Transfer Mode (default)
///< 2 = don't set "audio bypass" in driver/firmware, force Transfer Mode
// Receiver facilities
private:
cTSBuffer *tsBuffer;
protected:
virtual bool OpenDvr(void);
virtual void CloseDvr(void);
virtual bool GetTSPacket(uchar *&Data);
};
// A plugin that implements a DVB device derived from cDvbDevice needs to create
// a cDvbDeviceProbe derived object on the heap in order to have its Probe()
// function called, where it can actually create the appropriate device.
// The cDvbDeviceProbe object must be created in the plugin's constructor,
// and deleted in its destructor.
class cDvbDeviceProbe : public cListObject {
public:
cDvbDeviceProbe(void);
virtual ~cDvbDeviceProbe();
static uint32_t GetSubsystemId(int Adapter, int Frontend);
virtual bool Probe(int Adapter, int Frontend) = 0;
///< Probes for a DVB device at the given Adapter and creates the appropriate
///< object derived from cDvbDevice if applicable.
///< Returns true if a device has been created.
};
extern cList<cDvbDeviceProbe> DvbDeviceProbes;
#endif //__DVBDEVICE_H
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