[libcamera-devel] [PATCH 11/12] libcamera: pipe-vimc: add pipeline handler for vimc

[Niklas Söderlund]

Provide a pipeline handler for the virtual vimc driver.

Signed-off-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
---
 src/libcamera/meson.build   |  1 +
 src/libcamera/pipe-vimc.cpp | 92 +++++++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 src/libcamera/pipe-vimc.cpp

diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
index 8457e57939b862ed..088c76f72d331784 100644
--- a/src/libcamera/meson.build
+++ b/src/libcamera/meson.build
@@ -4,6 +4,7 @@ libcamera_sources = files([
     'deviceenumerator.cpp',
     'log.cpp',
     'main.cpp',
+    'pipe-vimc.cpp',
     'pipelinehandler.cpp',
 ])
 
diff --git a/src/libcamera/pipe-vimc.cpp b/src/libcamera/pipe-vimc.cpp
new file mode 100644
index 0000000000000000..14bb96faece908de
--- /dev/null
+++ b/src/libcamera/pipe-vimc.cpp
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2018, Google Inc.
+ *
+ * pipe-vimc.cpp - Pipeline handler for the vimc device
+ */
+
+#include <libcamera/camera.h>
+
+#include "deviceenumerator.h"
+#include "pipelinehandler.h"
+
+namespace libcamera {
+
+class PipeHandlerVimc : public PipelineHandler
+{
+public:
+	PipeHandlerVimc();
+	~PipeHandlerVimc();
+
+	bool match(DeviceEnumerator *enumerator);
+
+	unsigned int count();
+	Camera *camera(unsigned int id);
+private:
+	DeviceInfo *info_;
+	Camera *camera_;
+};
+
+PipeHandlerVimc::PipeHandlerVimc()
+	: info_(NULL), camera_(NULL)
+{
+}
+
+PipeHandlerVimc::~PipeHandlerVimc()
+{
+	if (camera_)
+		camera_->put();
+
+	if (info_)
+		info_->release();
+}
+
+unsigned int PipeHandlerVimc::count()
+{
+	return 1;
+}
+
+Camera *PipeHandlerVimc::camera(unsigned int id)
+{
+	if (id != 0)
+		return NULL;
+
+	return camera_;
+}
+
+bool PipeHandlerVimc::match(DeviceEnumerator *enumerator)
+{
+	DeviceMatch dm("vimc");
+
+	dm.add("Raw Capture 0");
+	dm.add("Raw Capture 1");
+	dm.add("RGB/YUV Capture");
+	dm.add("Sensor A");
+	dm.add("Sensor B");
+	dm.add("Debayer A");
+	dm.add("Debayer B");
+	dm.add("RGB/YUV Input");
+	dm.add("Scaler");
+
+	info_ = enumerator->search(dm);
+
+	if (info_) {
+		info_->acquire();
+
+		/* NOTE: A more complete Camera implementation could
+		 * be passed the DeviceInfo(s) it controls here or
+		 * a reference to the PipelineHandler. Which method
+		 * that is chosen will depend on how the Camera
+		 * object is modeled.
+		 */
+		camera_ = new Camera("Dummy VIMC Camera");
+
+		return true;
+	}
+
+	return info_ ? true : false;
+}
+
+REGISTER_PIPELINE(PipeHandlerVimc);
+
+} /* namespace libcamera */
-- 
2.20.1