1 files changed, 55 insertions, 0 deletions
diff --git a/src/libcamera/pipeline/ipu3/cio2.h b/src/libcamera/pipeline/ipu3/cio2.h
new file mode 100644
index 00000000..b2c4f89d
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+++ b/src/libcamera/pipeline/ipu3/cio2.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * cio2.h - Intel IPU3 CIO2
+ */
+#ifndef __LIBCAMERA_PIPELINE_IPU3_CIO2_H__
+#define __LIBCAMERA_PIPELINE_IPU3_CIO2_H__
+
+#include <memory>
+#include <queue>
+#include <vector>
+
+namespace libcamera {
+
+class CameraSensor;
+class FrameBuffer;
+class MediaDevice;
+class V4L2DeviceFormat;
+class V4L2Subdevice;
+class V4L2VideoDevice;
+struct Size;
+
+class CIO2Device
+{
+public:
+	static constexpr unsigned int CIO2_BUFFER_COUNT = 4;
+
+	CIO2Device();
+	~CIO2Device();
+
+	int init(const MediaDevice *media, unsigned int index);
+	int configure(const Size &size, V4L2DeviceFormat *outputFormat);
+
+	int allocateBuffers();
+	void freeBuffers();
+
+	FrameBuffer *getBuffer();
+	void putBuffer(FrameBuffer *buffer);
+
+	int start();
+	int stop();
+
+	V4L2VideoDevice *output_;
+	V4L2Subdevice *csi2_;
+	CameraSensor *sensor_;
+
+private:
+	std::vector<std::unique_ptr<FrameBuffer>> buffers_;
+	std::queue<FrameBuffer *> availableBuffers_;
+};
+
+} /* namespace libcamera */
+
+#endif /* __LIBCAMERA_PIPELINE_IPU3_CIO2_H__ */