1 files changed, 80 insertions, 0 deletions
diff --git a/include/stream_adaptor.h b/include/stream_adaptor.h
new file mode 100644
index 0000000000..916ab6e78d
--- /dev/null
+++ b/include/stream_adaptor.h
@@ -0,0 +1,80 @@
+/* Copyright (c) 2015 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#ifndef INCLUDE_STREAM_ADAPTOR_H
+#define INCLUDE_STREAM_ADAPTOR_H
+
+/* STM32 USART driver for Chrome EC */
+
+#include "common.h"
+#include "in_stream.h"
+#include "out_stream.h"
+#include "consumer.h"
+#include "producer.h"
+
+/*
+ * +..........+               +..........+------+...........+
+ * .          .<------------->.          |      |           .
+ * . Producer .  +---------+  . Consumer | ISFP | In Stream .
+ * .          .->|  Queue  |->.          |      |           .
+ * +..........+  +---------+  +..........+------+...........+
+ */
+
+struct in_stream_from_producer {
+	struct consumer consumer;
+	struct in_stream in;
+};
+
+/*
+ *
+ */
+extern struct in_stream_ops const in_stream_from_producer_in_stream_ops;
+extern struct consumer_ops const in_stream_from_producer_consumer_ops;
+
+#define IN_STREAM_FROM_PRODUCER(NAME, PRODUCER, QUEUE, READY)		\
+	struct in_stream_from_producer const NAME = {			\
+		.consumer = {						\
+			.producer = &PRODUCER,				\
+			.queue    = &QUEUE,				\
+			.ops      = &in_stream_from_producer_consumer_ops, \
+		},							\
+		.in = {							\
+			.ready = READY,					\
+			.ops   = &in_stream_from_producer_in_stream_ops, \
+		},							\
+	};
+
+/*
+ * +..........+               +..........+------+............+
+ * .          .<------------->.          |      |            .
+ * . Consumer .  +---------+  . Producer | OSFC | Out Stream .
+ * .          .<-|  Queue  |<-.          |      |            .
+ * +..........+  +---------+  +..........+------+............+
+ */
+
+struct out_stream_from_consumer {
+	struct producer producer;
+	struct out_stream out;
+};
+
+/*
+ *
+ */
+extern struct out_stream_ops const out_stream_from_consumer_out_stream_ops;
+extern struct producer_ops const out_stream_from_consumer_producer_ops;
+
+#define OUT_STREAM_FROM_CONSUMER(NAME, CONSUMER, QUEUE, READY)		\
+	struct out_stream_from_consumer const NAME = {			\
+		.producer = {						\
+			.consumer = &CONSUMER,				\
+			.queue    = &QUEUE,				\
+			.ops      = &out_stream_from_consumer_producer_ops, \
+		},							\
+		.out = {						\
+			.ready = READY,					\
+			.ops   = &out_stream_from_consumer_out_stream_ops, \
+		},							\
+	};
+
+#endif /* INCLUDE_STREAM_ADAPTOR_H */