X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/blast.git/blobdiff_plain/6e2b3026c6a496e81642c373796bd39dad33d2a6..HEAD:/GroupInterface.cpp

diff --git a/GroupInterface.cpp b/GroupInterface.cpp
index c611ecf..db80b91 100644
--- a/GroupInterface.cpp
+++ b/GroupInterface.cpp
@@ -10,6 +10,7 @@ GroupInterface::GroupInterface(AbstractBlock* _owner, const QString& _name, int
   if ((purpose == Clock) || (purpose == Reset)) {
     type = Boolean;
   }
+  clkIfaceType = InheritedName;
 }
 
 bool GroupInterface::isGroupInterface() {
@@ -44,7 +45,7 @@ int GroupInterface::getWidth() {
   return w;
 }
 
-bool GroupInterface::canConnectTo(AbstractInterface *iface) {
+bool GroupInterface::canConnectTo(AbstractInterface *iface, bool testClock) {
 
   /* NOTE :
      necessary conditions :
@@ -62,32 +63,53 @@ bool GroupInterface::canConnectTo(AbstractInterface *iface) {
         2.1 - this is an output, iface is an output of the group
         2.2 - both are inout
      
-
+      NB: testClock is useless since a group interface has always a clkIfaceType inherited.
+      Thus, it is always possible
 
   */
+  bool ok = false;
+
   if (iface->isReferenceInterface()) return false;
   ConnectedInterface* connIface = AI_TO_CON(iface);
   if (connIface->getConnectedFrom() != NULL) return false;
 
   if (this->getOwner() == iface->getOwner()->getParent()) {
-    if ((direction == Input) && (iface->getDirection() == Input)) return true;
-    if ((direction == InOut) && (iface->getDirection() == InOut)) return true;
+    if ((direction == Input) && (iface->getDirection() == Input) && (purpose == iface->getPurpose())) ok = true;
+    if ((direction == InOut) && (iface->getDirection() == InOut) && (purpose == iface->getPurpose())) ok = true;
 
   }
   else if (this->getOwner()->getParent() == iface->getOwner()->getParent()) {
-    if ((direction == Output) && (iface->getDirection() == Input)) return true;
-    if ((direction == InOut) && (iface->getDirection() == InOut)) return true;
+    if ((direction == Output) && (iface->getDirection() == Input) && (purpose == iface->getPurpose())) ok = true;
+    if ((direction == InOut) && (iface->getDirection() == InOut) && (purpose == iface->getPurpose())) ok = true;
   }
   else if (this->getOwner()->getParent() == iface->getOwner()) {
-    if ((direction == Output) && (iface->getDirection() == Output)) return true;
-    if ((direction == InOut) && (iface->getDirection() == InOut)) return true;
+    if ((direction == Output) && (iface->getDirection() == Output) && (purpose == iface->getPurpose())) ok = true;
+    if ((direction == InOut) && (iface->getDirection() == InOut) && (purpose == iface->getPurpose())) ok = true;
   }
   
+  if (ok) {
+    if (testClock) {
+      int dom1 = -1,dom2 = -2;
+      try {
+        dom1 = getClockDomain();
+        dom2 = iface->getClockDomain();
+      }
+      catch(Exception e) {
+        cerr << qPrintable(e.getMessage()) << endl;
+        return false;
+      }
+      if (dom1 != dom2) {
+        cout << "cannot connect interface that are in different clock domains" << endl;
+        return false;
+      }
+    }
+    return true;
+  }
 
   return false;
 }
 
-bool GroupInterface::canConnectFrom(AbstractInterface *iface) {
+bool GroupInterface::canConnectFrom(AbstractInterface *iface, bool testClock) {
 
   /* NOTE :
      necessary conditions :
@@ -106,29 +128,107 @@ bool GroupInterface::canConnectFrom(AbstractInterface *iface) {
         2.2 - both are inout
      4 - this is owned by top group and iface is an output of a source block           
   */
+  bool ok = false;
+
   if (iface->isReferenceInterface()) return false;
   if (getConnectedFrom() != NULL) return false;
 
   if (this->getOwner() == iface->getOwner()->getParent()) {
-    if ((direction == Output) && (iface->getDirection() == Output)) return true;
-    if ((direction == InOut) && (iface->getDirection() == InOut)) return true;
+    if ((direction == Output) && (iface->getDirection() == Output) && (purpose == iface->getPurpose())) ok = true;
+    if ((direction == InOut) && (iface->getDirection() == InOut) && (purpose == iface->getPurpose())) ok = true;
 
   }
   else if (this->getOwner()->getParent() == iface->getOwner()->getParent()) {
-    if ((direction == Input) && (iface->getDirection() == Output)) return true;
-    if ((direction == InOut) && (iface->getDirection() == InOut)) return true;
+    if ((direction == Input) && (iface->getDirection() == Output) && (purpose == iface->getPurpose())) ok = true;
+    if ((direction == InOut) && (iface->getDirection() == InOut) && (purpose == iface->getPurpose())) ok = true;
   }
   else if (this->getOwner()->getParent() == iface->getOwner()) {
-    if ((direction == Input) && (iface->getDirection() == Input)) return true;
-    if ((direction == InOut) && (iface->getDirection() == InOut)) return true;
+    if ((direction == Input) && (iface->getDirection() == Input) && (purpose == iface->getPurpose())) ok = true;
+    if ((direction == InOut) && (iface->getDirection() == InOut) && (purpose == iface->getPurpose())) ok = true;
   }
-  else if ((getOwner()->isTopGroupBlock()) && (iface->getOwner()->isSourceBlock())) {
-    if ((direction == Input) && (iface->getDirection() == Output)) return true;
+  else if ((getOwner()->isTopGroupBlock()) && (iface->getOwner()->isStimuliBlock())) {
+    if ((direction == Input) && (iface->getDirection() == Output) && (purpose == iface->getPurpose())) ok = true;
+  }
+
+  if (ok) {
+    if (testClock) {
+      int dom1 = -1,dom2 = -2;
+      try {
+        dom1 = getClockDomain();
+        dom2 = iface->getClockDomain();
+      }
+      catch(Exception e) {
+        cerr << qPrintable(e.getMessage()) << endl;
+        return false;
+      }
+      if (dom1 != dom2) {
+        cout << "cannot connect interface that are in different clock domains" << endl;
+        return false;
+      }
+    }
+    return true;
   }
 
   return false;
 }
 
+int GroupInterface::getClockDomain() throw(Exception) {
+
+  /* For clk/rst interfaces, the clock domain can be deduced
+     from the interface name.
+     Otherwise, we can search backward/forward for a functional
+     interface. Since a group interface cannot exist if it is not
+     connected to and/or from a functional interface (either directly
+     or through a sequence of subgroups) there is at least such a functional
+     interface.
+   */
+  int idClock = -1;
+  if ((purpose == Clock) || (purpose == Reset)) {
+    QString domName = name;
+    domName.remove(0,8);
+    bool ok;
+    idClock = domName.toInt(&ok);
+    if (!ok) throw(Exception(IFACE_INVALID_CLKFREQ,this));
+  }
+  else {
+    // start by searching backward
+    ConnectedInterface* connFrom = connectedFrom;
+    while ((connFrom != NULL) && (connFrom->isGroupInterface())) {
+      connFrom = connFrom->getConnectedFrom();
+    }
+    if (connFrom != NULL) {
+      idClock = connFrom->getClockDomain();
+    }
+    //searching forward
+    else {
+      QList<ConnectedInterface*> lstIfaces = getForwardFunctionalInterfaces(this);
+      if (lstIfaces.isEmpty()) throw(Exception(IFACE_INVALID_CLKFREQ,this));
+      foreach(ConnectedInterface* iface, lstIfaces) {
+        // test if all ifaces are in the same clock domain
+        if (idClock == -1) {
+          idClock = iface->getClockDomain();
+        }
+        else if (idClock != iface->getClockDomain()) throw(Exception(IFACE_INVALID_CLKFREQ,this));
+      }
+    }
+  }
+
+  return idClock;
+}
+
+QList<ConnectedInterface*> GroupInterface::getForwardFunctionalInterfaces(GroupInterface* groupIface) {
+  QList<ConnectedInterface*> lstIfaces;
+  foreach(ConnectedInterface* iface, groupIface->getConnectedTo()) {
+    if (iface->isFunctionalInterface()) {
+      lstIfaces.append(iface);
+    }
+    else if (iface->isGroupInterface()) {
+      lstIfaces.append(getForwardFunctionalInterfaces(AI_TO_GRP(iface)));
+    }
+  }
+  return lstIfaces;
+}
+
 void GroupInterface::connectionsValidation(QStack<AbstractInterface*> *interfacetoValidate, QList<AbstractInterface*> *validatedInterfaces) throw(Exception) {
     cout << "group interface connection validation" << endl;
 }