add the ability for the ethernet device to check if the link is busy

--HG--
extra : convert_revision : 0dc0c4c4546869261f4508ad22a6a85aecf3c334

2 files changed, 4 insertions, 0 deletions

diff --git a/src/dev/etherint.hh b/src/dev/etherint.hh
index dfc224ecc..430f45d66 100644
--- a/src/dev/etherint.hh
+++ b/src/dev/etherint.hh
@@ -63,6 +63,9 @@ class EtherInt : public SimObject
     bool sendPacket(EthPacketPtr packet)
     { return peer ? peer->recvPacket(packet) : true; }
     virtual bool recvPacket(EthPacketPtr packet) = 0;
+
+    bool askBusy() {return peer->isBusy(); }
+    virtual bool isBusy() { return false; }
 };
 
 #endif // __DEV_ETHERINT_HH__
diff --git a/src/dev/etherlink.hh b/src/dev/etherlink.hh
index bb2854810..a16d6d799 100644
--- a/src/dev/etherlink.hh
+++ b/src/dev/etherlink.hh
@@ -114,6 +114,7 @@ class EtherLink : public SimObject
         Interface(const std::string &name, Link *txlink, Link *rxlink);
         bool recvPacket(EthPacketPtr packet) { return txlink->transmit(packet); }
         void sendDone() { peer->sendDone(); }
+        bool isBusy() { return txlink->busy(); }
     };
 
     Link *link[2];