1 files changed, 69 insertions, 0 deletions
diff --git a/src/dev/intpin.cc b/src/dev/intpin.cc
new file mode 100644
index 000000000..dfb03aa8d
--- /dev/null
+++ b/src/dev/intpin.cc
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2019 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include "dev/intpin.hh"
+
+#include "base/logging.hh"
+
+void
+IntSinkPinBase::bind(Port &peer)
+{
+    source = dynamic_cast<IntSourcePinBase *>(&peer);
+    fatal_if(!source, "Attempt to bind interrupt sink pin %s to "
+            "incompatible port %s.", name(), peer.name());
+    Port::bind(peer);
+}
+
+void
+IntSinkPinBase::unbind()
+{
+    source = nullptr;
+    Port::unbind();
+}
+
+void
+IntSourcePinBase::bind(Port &peer)
+{
+    sink = dynamic_cast<IntSinkPinBase *>(&peer);
+    fatal_if(!sink, "Attempt to bind interrupt source pin %s to "
+            "incompatible port %s.", name(), peer.name());
+    Port::bind(peer);
+
+    if (_state)
+        raise();
+    else
+        lower();
+}
+
+void
+IntSourcePinBase::unbind()
+{
+    sink = nullptr;
+    Port::unbind();
+}