Add: Ability to turn off power to LNB on teardown #172

Barracuda09 · Nov 15, 2022 · 414f5fc · 414f5fc
1 parent 2a5899a
commit 414f5fc
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Showing 7 changed files with 37 additions and 1 deletion.
diff --git a/src/input/dvb/Frontend.cpp b/src/input/dvb/Frontend.cpp
@@ -447,6 +447,10 @@ bool Frontend::teardown() {
  // Close active PIDs
  closeActivePIDFilters();
  _tuned = false;
+ // Do teardown of frontends before closing FE
+ for (const input::dvb::delivery::UpSystem &deliverySystem : _deliverySystem) {
+ deliverySystem->teardown(_fd_fe);
+ }
  closeDMX();
  closeFE();
  _frontendData.initialize();

diff --git a/src/input/dvb/delivery/DVBS.cpp b/src/input/dvb/delivery/DVBS.cpp
@@ -63,7 +63,8 @@ namespace input::dvb::delivery {
  DVBS::DVBS(const FeIndex index, const FeID id, const std::string &fePath, unsigned int dvbVersion) :
  input::dvb::delivery::System(index, id, fePath, dvbVersion),
  _diseqcType(DiseqcType::Lnb),
- _diseqc(new DiSEqcLnb) {
+ _diseqc(new DiSEqcLnb),
+ _turnoffLNBPower(false) {
 
  // Only DVB-S2 have special handling for FBC tuners
  _fbcSetID = readProcData(index, "fbc_set_id");
@@ -107,6 +108,8 @@ namespace input::dvb::delivery {
  ADD_XML_ELEMENT(xml, "type", "DVB-S(2)");
  }
 
+ ADD_XML_CHECKBOX(xml, "turnoffLNBPower", (_turnoffLNBPower ? "true" : "false"));
+
  ADD_XML_BEGIN_ELEMENT(xml, "diseqcType");
  ADD_XML_ELEMENT(xml, "inputtype", "selectionlist");
  ADD_XML_ELEMENT(xml, "value", asInteger(_diseqcType));
@@ -125,6 +128,9 @@ namespace input::dvb::delivery {
 
  void DVBS::doFromXML(const std::string &xml) {
  std::string element;
+ if (findXMLElement(xml, "turnoffLNBPower.value", element)) {
+ _turnoffLNBPower = (element == "true") ? true : false;
+ }
  if (findXMLElement(xml, "diseqcType.value", element)) {
  const DiseqcType type = static_cast<DiseqcType>(std::stoi(element));
  switch (type) {
@@ -231,6 +237,13 @@ namespace input::dvb::delivery {
  return true;
  }
 
+ void DVBS::teardown(int feFD) const {
+ if (_turnoffLNBPower) {
+ SI_LOG_INFO("Frontend: @#1, Turning off LNB Power", _feID);
+ _diseqc->turnOffLNBPower(feFD);
+ }
+ }
+
  // =========================================================================
  // -- Other member functions ----------------------------------------------
  // =========================================================================

diff --git a/src/input/dvb/delivery/DVBS.h b/src/input/dvb/delivery/DVBS.h
@@ -69,6 +69,9 @@ class DVBS :
  system == input::InputSystem::DVBS;
  }
 
+ ///
+ virtual void teardown(int feFD) const;
+
  // =========================================================================
  // -- Other member functions -----------------------------------------------
  // =========================================================================
@@ -102,6 +105,7 @@ class DVBS :
  };
  DiseqcType _diseqcType;
  UpDiSEqc _diseqc;
+ bool _turnoffLNBPower;
 
  // =========================================================================
  // -- FBC Data members -----------------------------------------------------

diff --git a/src/input/dvb/delivery/DiSEqc.cpp b/src/input/dvb/delivery/DiSEqc.cpp
@@ -59,6 +59,12 @@ namespace input::dvb::delivery {
  // -- Other member functions ------------------------------------------------
  // ===========================================================================
 
+ void DiSEqc::turnOffLNBPower(int feFD) const {
+ if (ioctl(feFD, FE_SET_VOLTAGE, SEC_VOLTAGE_OFF) == -1) {
+ SI_LOG_PERROR("FE_SET_VOLTAGE failed to switch off");
+ }
+ }
+
  void DiSEqc::sendDiseqcResetCommand(int feFD, FeID id) {
  dvb_diseqc_master_cmd cmd = {{0xe0, 0x00, 0x00}, 3};
 

diff --git a/src/input/dvb/delivery/DiSEqc.h b/src/input/dvb/delivery/DiSEqc.h
@@ -65,6 +65,10 @@ namespace input::dvb::delivery {
  virtual bool sendDiseqc(int feFD, FeID id, uint32_t &freq,
  int src, Lnb::Polarization pol) = 0;
 
+ /// This will turn off the power to the LNB
+ /// @param feFD
+ virtual void turnOffLNBPower(int feFD) const;
+
  protected:
 
  ///

diff --git a/src/input/dvb/delivery/System.h b/src/input/dvb/delivery/System.h
@@ -21,6 +21,7 @@
 #define INPUT_DVB_DELIVERY_SYSTEM_H_INCLUDE INPUT_DVB_DELIVERY_SYSTEM_H_INCLUDE
 
 #include <FwDecl.h>
+#include <Unused.h>
 #include <base/XMLSupport.h>
 #include <input/InputSystem.h>
 
@@ -61,6 +62,9 @@ class System :
  ///
  virtual bool isCapableOf(input::InputSystem system) const = 0;
 
+ ///
+ virtual void teardown(int UNUSED(feFD)) const {}
+
  // =======================================================================
  // -- Data members -------------------------------------------------------
  // =======================================================================

diff --git a/web/frontend.html b/web/frontend.html
@@ -88,6 +88,7 @@
  page += addTableLineEntry("RTCP Signal Update Freq", xmlDoc, streamID + "rtcpSignalUpdate");
  page += addTableLineEntry("Internal Software Pid Filtering", xmlDoc, streamID + "internalPidFiltering");
  page += addTableLineEntry("Wait On Tuning Lock Timeout (ms)", xmlDoc, streamID + "waitOnLockTimeout");
+ page += addTableLineEntry("Turn off LNB Power during teardown", xmlDoc, streamID + "turnoffLNBPower");
 
  var transformation = visibleStream.getElementsByTagName("transformation");
  if (transformation.length > 0) {