From d0af2f90e75ba5b87542ff3ad0a6fb7b960d1e97 Mon Sep 17 00:00:00 2001
From: Klaus Schmidinger <vdr@tvdr.de>
Date: Sun, 27 Jan 2008 14:35:54 +0100
Subject: Implemented handling of DVB-S2

---
 device.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'device.c')

diff --git a/device.c b/device.c
index 84473af0..e1c654d1 100644
--- a/device.c
+++ b/device.c
@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: device.c 1.148 2007/11/17 15:39:28 kls Exp $
+ * $Id: device.c 1.149 2008/01/27 10:40:46 kls Exp $
  */
 
 #include "device.h"
@@ -359,6 +359,21 @@ cDevice *cDevice::GetDevice(int Index)
   return (0 <= Index && Index < numDevices) ? device[Index] : NULL;
 }
 
+static int GetClippedNumProvidedSystems(int AvailableBits, cDevice *Device)
+{
+  int MaxNumProvidedSystems = 1 << AvailableBits;
+  int NumProvidedSystems = Device->NumProvidedSystems();
+  if (NumProvidedSystems > MaxNumProvidedSystems) {
+     esyslog("ERROR: device %d supports %d modulation systems but cDevice::GetDevice() currently only supports %d delivery systems which should be fixed", Device->CardIndex() + 1, NumProvidedSystems, MaxNumProvidedSystems);
+     NumProvidedSystems = MaxNumProvidedSystems;
+     }
+  else if (NumProvidedSystems <= 0) {
+     esyslog("ERROR: device %d reported an invalid number (%d) of supported delivery systems - assuming 1", Device->CardIndex() + 1, NumProvidedSystems);
+     NumProvidedSystems = 1;
+     }
+  return NumProvidedSystems;
+}
+
 cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView)
 {
   // Collect the current priorities of all CAM slots that can decrypt the channel:
@@ -408,6 +423,7 @@ cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView
              imp <<= 1; imp |= LiveView ? !device[i]->IsPrimaryDevice() || ndr : 0;                                  // prefer the primary device for live viewing if we don't need to detach existing receivers
              imp <<= 1; imp |= !device[i]->Receiving() && (device[i] != cTransferControl::ReceiverDevice() || device[i]->IsPrimaryDevice()) || ndr; // use receiving devices if we don't need to detach existing receivers, but avoid primary device in local transfer mode
              imp <<= 1; imp |= device[i]->Receiving();                                                               // avoid devices that are receiving
+             imp <<= 2; imp |= GetClippedNumProvidedSystems(2, device[i]) - 1;                                       // avoid cards which support multiple delivery systems
              imp <<= 1; imp |= device[i] == cTransferControl::ReceiverDevice();                                      // avoid the Transfer Mode receiver device
              imp <<= 8; imp |= min(max(device[i]->Priority() + MAXPRIORITY, 0), 0xFF);                               // use the device with the lowest priority (+MAXPRIORITY to assure that values -99..99 can be used)
              imp <<= 8; imp |= min(max((NumUsableSlots ? SlotPriority[j] : 0) + MAXPRIORITY, 0), 0xFF);              // use the CAM slot with the lowest priority (+MAXPRIORITY to assure that values -99..99 can be used)
@@ -696,6 +712,11 @@ bool cDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *Needs
   return false;
 }
 
+int cDevice::NumProvidedSystems(void) const
+{
+  return 0;
+}
+
 bool cDevice::IsTunedToTransponder(const cChannel *Channel)
 {
   return false;
-- 
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