From ee10028dc6ce314e1848a206bbdde18bde40b4ec Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sat, 6 Sep 2003 13:22:24 +0200
Subject: The DVB devices no longer send CA descriptors to the CAM while the
 EPG scanner is active

---
 HISTORY     |  3 +++
 dvbdevice.c | 14 +++++++++-----
 eitscan.c   |  5 ++++-
 eitscan.h   |  4 +++-
 4 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/HISTORY b/HISTORY
index 17513b02..d8ad124a 100644
--- a/HISTORY
+++ b/HISTORY
@@ -2372,3 +2372,6 @@ Video Disk Recorder Revision History
 - When setting an editing mark while in "Pause" mode, replay now immediately
   jumps to the marked frame (thanks to Oskar Signell for pointing out this
   problem).
+- The DVB devices no longer send CA descriptors to the CAM while the EPG scanner
+  is active (sometimes the CAMs got irritated when the device tuned to channels
+  they couldn't handle).
diff --git a/dvbdevice.c b/dvbdevice.c
index 19be0223..f29745b2 100644
--- a/dvbdevice.c
+++ b/dvbdevice.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: dvbdevice.c 1.63 2003/08/30 11:40:41 kls Exp $
+ * $Id: dvbdevice.c 1.64 2003/09/06 13:19:33 kls Exp $
  */
 
 #include "dvbdevice.h"
@@ -74,6 +74,7 @@ private:
   cChannel channel;
   const char *diseqcCommands;
   bool active;
+  bool useCa;
   time_t startTime;
   eTunerStatus tunerStatus;
   cMutex mutex;
@@ -84,7 +85,7 @@ public:
   cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType, cCiHandler *CiHandler);
   virtual ~cDvbTuner();
   bool IsTunedTo(const cChannel *Channel) const;
-  void Set(const cChannel *Channel, bool Tune);
+  void Set(const cChannel *Channel, bool Tune, bool UseCa);
   bool Locked(void) { return tunerStatus == tsLocked; }
   };
 
@@ -96,6 +97,7 @@ cDvbTuner::cDvbTuner(int Fd_Frontend, int CardIndex, fe_type_t FrontendType, cCi
   ciHandler = CiHandler;
   diseqcCommands = NULL;
   active = false;
+  useCa = false;
   tunerStatus = tsIdle;
   startTime = time(NULL);
   Start();
@@ -114,7 +116,7 @@ bool cDvbTuner::IsTunedTo(const cChannel *Channel) const
   return tunerStatus != tsIdle && channel.Source() == Channel->Source() && channel.Frequency() == Channel->Frequency();
 }
 
-void cDvbTuner::Set(const cChannel *Channel, bool Tune)
+void cDvbTuner::Set(const cChannel *Channel, bool Tune, bool UseCa)
 {
   cMutexLock MutexLock(&mutex);
   bool CaChange = !(Channel->GetChannelID() == channel.GetChannelID());
@@ -122,6 +124,7 @@ void cDvbTuner::Set(const cChannel *Channel, bool Tune)
      tunerStatus = tsSet;
   else if (tunerStatus == tsCam && CaChange)
      tunerStatus = tsTuned;
+  useCa = UseCa;
   if (Channel->Ca() && CaChange)
      startTime = time(NULL);
   channel = *Channel;
@@ -267,7 +270,7 @@ void cDvbTuner::Action(void)
               }
            if (tunerStatus >= tsLocked) {
               if (ciHandler) {
-                 if (ciHandler->Process()) {
+                 if (ciHandler->Process() && useCa) {
                     if (tunerStatus != tsCam) {//XXX TODO update in case the CA descriptors have changed
                        for (int Slot = 0; Slot < ciHandler->NumSlots(); Slot++) {
                            uchar buffer[2048];
@@ -673,6 +676,7 @@ bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
   StartTransferMode = false;
 #endif
 
+  // XXX 1.3: use the same mechanism as below (!EITScanner.UsesDevice(this))
   if (EITScanner.Active()) {
      StartTransferMode = false;
      TurnOnLivePIDs = false;
@@ -690,7 +694,7 @@ bool cDvbDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
   if (TurnOffLivePIDs)
      TurnOffLiveMode();
 
-  dvbTuner->Set(Channel, DoTune);
+  dvbTuner->Set(Channel, DoTune, !EITScanner.UsesDevice(this)); //XXX 1.3: this is an ugly hack - find a cleaner solution
 
   // PID settings:
 
diff --git a/eitscan.c b/eitscan.c
index f9058cf0..a12bb44d 100644
--- a/eitscan.c
+++ b/eitscan.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: eitscan.c 1.13 2003/05/24 13:34:59 kls Exp $
+ * $Id: eitscan.c 1.14 2003/09/06 13:06:13 kls Exp $
  */
 
 #include "eitscan.h"
@@ -17,6 +17,7 @@ cEITScanner EITScanner;
 cEITScanner::cEITScanner(void)
 {
   lastScan = lastActivity = time(NULL);
+  currentDevice = NULL;
   currentChannel = 0;
   memset(lastChannel, 0, sizeof(lastChannel));
   numTransponders = 0;
@@ -66,7 +67,9 @@ void cEITScanner::Process(void)
                                if (Device == cDevice::PrimaryDevice() && !currentChannel) {
                                   currentChannel = Device->CurrentChannel();
                                   }
+                               currentDevice = Device;
                                Device->SwitchChannel(Channel, false);
+                               currentDevice = NULL;
                                break;
                                }
                             }
diff --git a/eitscan.h b/eitscan.h
index 609bf78f..420f47d0 100644
--- a/eitscan.h
+++ b/eitscan.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: eitscan.h 1.3 2003/05/24 13:21:36 kls Exp $
+ * $Id: eitscan.h 1.4 2003/09/06 13:05:51 kls Exp $
  */
 
 #ifndef __EITSCAN_H
@@ -19,6 +19,7 @@ private:
          ScanTimeout = 20
        };
   time_t lastScan, lastActivity;
+  cDevice *currentDevice;
   int currentChannel;
   int lastChannel[MAXDEVICES];
   int numTransponders, *transponders;
@@ -27,6 +28,7 @@ public:
   cEITScanner(void);
   ~cEITScanner();
   bool Active(void) { return currentChannel; }
+  bool UsesDevice(const cDevice *Device) { return currentDevice == Device; }
   void Activity(void);
   void Process(void);
   };
-- 
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