From be06e04d5583264f67d365d2fe32ebe89472c722 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sun, 23 Mar 2003 15:20:00 +0100
Subject: [PATCH] CAM access only for CA channels and no longer during replay

---
 HISTORY     |  6 ++++++
 ci.c        |  5 ++++-
 ci.h        |  4 +++-
 config.h    |  4 ++--
 dvbdevice.c | 12 ++++++++++--
 5 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/HISTORY b/HISTORY
index a5c70f0b..9077cec6 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1987,3 +1987,9 @@ Video Disk Recorder Revision History
 - Modified the EPG scanner to avoid CPU load peaks (thanks to Steffen Becker for
   reporting this one).
 - Fixed support for Viaccess CAMs (thanks to Axel Gruber for helping to debug this).
+
+2003-03-23: Version 1.1.27
+
+- The CAM is now accessed only if the current channel actually has a non-zero Ca
+  value, and CAM access is completely suppressed during replay, which avoids
+  problems in case the CAM is attached to the primary DVB device.
diff --git a/ci.c b/ci.c
index 62bbed7e..a3d64df3 100644
--- a/ci.c
+++ b/ci.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: ci.c 1.8 2003/03/16 22:32:47 kls Exp $
+ * $Id: ci.c 1.9 2003/03/23 15:18:40 kls Exp $
  */
 
 /* XXX TODO
@@ -1273,6 +1273,7 @@ void cCiCaPmt::AddCaDescriptor(int Length, uint8_t *Data)
 cCiHandler::cCiHandler(int Fd, int NumSlots)
 {
   numSlots = NumSlots;
+  enabled = true;
   for (int i = 0; i < MAX_CI_SESSION; i++)
       sessions[i] = NULL;
   tpl = new cCiTransportLayer(Fd, numSlots);
@@ -1425,6 +1426,8 @@ int cCiHandler::CloseAllSessions(int Slot)
 
 bool cCiHandler::Process(void)
 {
+  if (!enabled)
+     return false;
   bool result = true;
   cMutexLock MutexLock(&mutex);
   for (int Slot = 0; Slot < numSlots; Slot++) {
diff --git a/ci.h b/ci.h
index 255292a2..a9f27f1e 100644
--- a/ci.h
+++ b/ci.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: ci.h 1.3 2003/02/16 10:55:21 kls Exp $
+ * $Id: ci.h 1.4 2003/03/23 15:18:40 kls Exp $
  */
 
 #ifndef __CI_H
@@ -80,6 +80,7 @@ class cCiHandler {
 private:
   cMutex mutex;
   int numSlots;
+  bool enabled;
   cCiSession *sessions[MAX_CI_SESSION];
   cCiTransportLayer *tpl;
   cCiTransportConnection *tc;
@@ -95,6 +96,7 @@ private:
 public:
   ~cCiHandler();
   static cCiHandler *CreateCiHandler(const char *FileName);
+  void SetEnabled(bool Enabled) { enabled = Enabled; }
   bool Process(void);
   bool EnterMenu(int Slot);
   cCiMenu *GetMenu(void);
diff --git a/config.h b/config.h
index 20604586..321407df 100644
--- a/config.h
+++ b/config.h
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: config.h 1.150 2003/03/09 10:01:02 kls Exp $
+ * $Id: config.h 1.151 2003/03/23 14:42:35 kls Exp $
  */
 
 #ifndef __CONFIG_H
@@ -19,7 +19,7 @@
 #include "device.h"
 #include "tools.h"
 
-#define VDRVERSION "1.1.26"
+#define VDRVERSION "1.1.27"
 
 #define MAXPRIORITY 99
 #define MAXLIFETIME 99
diff --git a/dvbdevice.c b/dvbdevice.c
index ba608706..24f582f3 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 1.46 2003/02/16 15:10:39 kls Exp $
+ * $Id: dvbdevice.c 1.47 2003/03/23 15:18:40 kls Exp $
  */
 
 #include "dvbdevice.h"
@@ -263,7 +263,7 @@ void cDvbTuner::Action(void)
                  }
               }
            if (tunerStatus >= tsLocked) {
-              if (ciHandler) {
+              if (ciHandler && channel.Ca()) {
                  if (ciHandler->Process()) {
                     if (tunerStatus != tsCam) {//XXX TODO update in case the CA descriptors have changed
                        uchar buffer[2048];
@@ -773,11 +773,15 @@ bool cDvbDevice::SetPlayMode(ePlayMode PlayMode)
          CHECK(ioctl(fd_audio, AUDIO_SET_MUTE, false));
          if (siProcessor)
             siProcessor->SetStatus(true);
+         if (ciHandler)
+            ciHandler->SetEnabled(true);
          break;
     case pmAudioVideo:
     case pmAudioOnlyBlack:
          if (siProcessor)
             siProcessor->SetStatus(false);
+         if (ciHandler)
+            ciHandler->SetEnabled(false);
          CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
          CHECK(ioctl(fd_audio, AUDIO_SELECT_SOURCE, AUDIO_SOURCE_MEMORY));
          CHECK(ioctl(fd_audio, AUDIO_SET_AV_SYNC, PlayMode == pmAudioVideo));
@@ -788,6 +792,8 @@ bool cDvbDevice::SetPlayMode(ePlayMode PlayMode)
     case pmAudioOnly:
          if (siProcessor)
             siProcessor->SetStatus(false);
+         if (ciHandler)
+            ciHandler->SetEnabled(false);
          CHECK(ioctl(fd_video, VIDEO_SET_BLANK, true));
          CHECK(ioctl(fd_audio, AUDIO_STOP, true));
          CHECK(ioctl(fd_audio, AUDIO_CLEAR_BUFFER));
@@ -799,6 +805,8 @@ bool cDvbDevice::SetPlayMode(ePlayMode PlayMode)
     case pmExtern_THIS_SHOULD_BE_AVOIDED:
          if (siProcessor)
             siProcessor->SetStatus(false);
+         if (ciHandler)
+            ciHandler->SetEnabled(false);
          close(fd_video);
          close(fd_audio);
          fd_video = fd_audio = -1;