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/*
* ci.h: Common Interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: ci.h 1.20 2005/12/03 11:59:05 kls Exp $
*/
#ifndef __CI_H
#define __CI_H
#include <stdint.h>
#include <stdio.h>
#include "thread.h"
#include "tools.h"
class cCiMMI;
class cCiMenu {
friend class cCiHandler;
friend class cCiMMI;
private:
enum { MAX_CIMENU_ENTRIES = 64 }; ///< XXX is there a specified maximum?
cCiMMI *mmi;
cMutex *mutex;
bool selectable;
char *titleText;
char *subTitleText;
char *bottomText;
char *entries[MAX_CIMENU_ENTRIES];
int numEntries;
bool AddEntry(char *s);
cCiMenu(cCiMMI *MMI, bool Selectable);
public:
~cCiMenu();
const char *TitleText(void) { return titleText; }
const char *SubTitleText(void) { return subTitleText; }
const char *BottomText(void) { return bottomText; }
const char *Entry(int n) { return n < numEntries ? entries[n] : NULL; }
int NumEntries(void) { return numEntries; }
bool Selectable(void) { return selectable; }
bool Select(int Index);
bool Cancel(void);
bool Abort(void);
bool HasUpdate(void);
};
class cCiEnquiry {
friend class cCiHandler;
friend class cCiMMI;
private:
cCiMMI *mmi;
cMutex *mutex;
char *text;
bool blind;
int expectedLength;
cCiEnquiry(cCiMMI *MMI);
public:
~cCiEnquiry();
const char *Text(void) { return text; }
bool Blind(void) { return blind; }
int ExpectedLength(void) { return expectedLength; }
bool Reply(const char *s);
bool Cancel(void);
bool Abort(void);
};
#define MAX_CI_SESSION 16 //XXX
#define MAX_CI_SLOT 16
class cCiCaPidData : public cListObject {
public:
bool active;
int pid;
int streamType;
cCiCaPidData(int Pid, int StreamType)
{
active = false;
pid = Pid;
streamType = StreamType;
}
};
class cCiCaProgramData : public cListObject {
public:
int programNumber;
cList<cCiCaPidData> pidList;
cCiCaProgramData(int ProgramNumber)
{
programNumber = ProgramNumber;
}
};
class cCiSession;
class cCiTransportLayer;
class cCiTransportConnection;
class cCiHandler {
private:
cMutex mutex;
int fd;
int numSlots;
bool newCaSupport;
bool hasUserIO;
bool moduleReady[MAX_CI_SLOT];
cCiSession *sessions[MAX_CI_SESSION];
cCiTransportLayer *tpl;
cCiTransportConnection *tc;
int source;
int transponder;
cList<cCiCaProgramData> caProgramList;
int ResourceIdToInt(const uint8_t *Data);
bool Send(uint8_t Tag, int SessionId, int ResourceId = 0, int Status = -1);
const unsigned short *GetCaSystemIds(int Slot);
cCiSession *GetSessionBySessionId(int SessionId);
cCiSession *GetSessionByResourceId(int ResourceId, int Slot);
cCiSession *CreateSession(int ResourceId);
bool OpenSession(int Length, const uint8_t *Data);
bool CloseSession(int SessionId);
int CloseAllSessions(int Slot);
cCiHandler(int Fd, int NumSlots);
void SendCaPmt(void);
public:
~cCiHandler();
static cCiHandler *CreateCiHandler(const char *FileName);
///< Creates a new cCiHandler for the given CA device.
int NumSlots(void) { return numSlots; }
///< Returns the number of CAM slots provided by this CA device.
bool Ready(void);
///< Returns true if all CAMs in this CA device are ready.
bool Process(int Slot = -1);
///< Processes the given Slot. If Slot is -1, all slots are processed.
///< Returns false in case of an error.
bool HasUserIO(void) { return hasUserIO; }
///< Returns true if there is a pending user interaction, which shall
///< be retrieved via GetMenu() or GetEnquiry().
bool EnterMenu(int Slot);
///< Requests the CAM in the given Slot to start its menu.
cCiMenu *GetMenu(void);
///< Gets a pending menu, or NULL if there is no menu.
cCiEnquiry *GetEnquiry(void);
///< Gets a pending enquiry, or NULL if there is no enquiry.
const char *GetCamName(int Slot);
///< Returns the name of the CAM in the given Slot, or NULL if there
///< is no CAM in that slot.
bool ProvidesCa(const unsigned short *CaSystemIds); //XXX Slot???
///< Returns true if any of the CAMs can provide one of the given
///< CaSystemIds. This doesn't necessarily mean that it will be
///< possible to actually decrypt such a programme, since CAMs
///< usually advertise several CA system ids, while the actual
///< decryption is controlled by the smart card inserted into
///< the CAM.
void SetSource(int Source, int Transponder);
///< Sets the Source and Transponder of the device this cCiHandler is
///< currently tuned to. If Source or Transponder are different than
///< what was given in a previous call to SetSource(), any previously
///< added PIDs will be cleared.
void AddPid(int ProgramNumber, int Pid, int StreamType);
///< Adds the given PID information to the list of PIDs. A later call
///< to SetPid() will (de)activate one of these entries.
void SetPid(int Pid, bool Active);
///< Sets the given Pid (which has previously been added through a
///< call to AddPid()) to Active. A later call to StartDecrypting() will
///< send the full list of currently active CA_PMT entries to the CAM.
bool CanDecrypt(int ProgramNumber);
///< XXX
///< Returns true if there is a CAM in this CA device that is able
///< to decrypt the programme with the given ProgramNumber. The PIDs
///< for this ProgramNumber must have been set through previous calls
///< to SetPid().
void StartDecrypting(void);
///< Triggers sending all currently active CA_PMT entries to the CAM,
///< so that it will start decrypting.
bool Reset(int Slot);
};
#endif //__CI_H
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