1 files changed, 35 insertions, 0 deletions
diff --git a/src/port.h b/src/port.h
new file mode 100644
index 0000000..5b3e0c9
--- /dev/null
+++ b/src/port.h
@@ -0,0 +1,35 @@
+// Copyright 2007-2022 David Robillard <d@drobilla.net>
+// SPDX-License-Identifier: ISC
+
+#ifndef JALV_PORT_H
+#define JALV_PORT_H
+
+#include "attributes.h"
+#include "lv2_evbuf.h"
+
+#include "lilv/lilv.h"
+
+#include <stddef.h>
+#include <stdint.h>
+
+JALV_BEGIN_DECLS
+
+enum PortFlow { FLOW_UNKNOWN, FLOW_INPUT, FLOW_OUTPUT };
+
+enum PortType { TYPE_UNKNOWN, TYPE_CONTROL, TYPE_AUDIO, TYPE_EVENT, TYPE_CV };
+
+struct Port {
+  const LilvPort* lilv_port; ///< LV2 port
+  enum PortType   type;      ///< Data type
+  enum PortFlow   flow;      ///< Data flow direction
+  void*           sys_port;  ///< For audio/MIDI ports, otherwise NULL
+  LV2_Evbuf*      evbuf;     ///< For MIDI ports, otherwise NULL
+  void*           widget;    ///< Control widget, if applicable
+  size_t          buf_size;  ///< Custom buffer size, or 0
+  uint32_t        index;     ///< Port index
+  float           control;   ///< For control ports, otherwise 0.0f
+};
+
+JALV_END_DECLS
+
+#endif // JALV_PORT_H