feat(users/flokli/ipu6-softisp): init r/7454

This code adds support for the ipu6 webcams via libcamera, based on the work in
https://copr.fedorainfracloud.org/coprs/jwrdegoede/ipu6-softisp/.

It's supposed to be included in your NixOS configuration imports.

Change-Id: Ifb71999ad61161fa23506b97cb449f73fb1270e3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10709
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: flokli <flokli@flokli.de>

1 files changed, 238 insertions, 0 deletions

diff --git a/users/flokli/ipu6-softisp/libcamera/0014-libcamera-pipeline-simple-rename-converterBuffers_-a.patch b/users/flokli/ipu6-softisp/libcamera/0014-libcamera-pipeline-simple-rename-converterBuffers_-a.patch
new file mode 100644
index 000000000000..fc603fc9c8eb
--- /dev/null
+++ b/users/flokli/ipu6-softisp/libcamera/0014-libcamera-pipeline-simple-rename-converterBuffers_-a.patch
@@ -0,0 +1,238 @@
+From 155065b3d78c14173fd71c21fe0639f94c3da109 Mon Sep 17 00:00:00 2001
+From: Andrey Konovalov <andrey.konovalov@linaro.org>
+Date: Fri, 1 Dec 2023 15:45:14 +0300
+Subject: [PATCH 14/25] libcamera: pipeline: simple: rename converterBuffers_
+ and related vars
+
+The converterBuffers_ and the converterQueue_ are not that specific
+to the Converter, and could be used by another entity doing the format
+conversion.
+
+Rename converterBuffers_, converterQueue_, and useConverter_ to
+conversionBuffers_, conversionQueue_ and useConversion_ to
+disassociate them from the Converter.
+
+Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
+Signed-off-by: Hans de Goede <hdegoede@redhat.com>
+Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # sc8280xp Lenovo x13s
+Tested-by: Pavel Machek <pavel@ucw.cz>
+---
+ src/libcamera/pipeline/simple/simple.cpp | 63 ++++++++++++------------
+ 1 file changed, 32 insertions(+), 31 deletions(-)
+
+diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
+index 4d0e7255..fa298746 100644
+--- a/src/libcamera/pipeline/simple/simple.cpp
++++ b/src/libcamera/pipeline/simple/simple.cpp
+@@ -269,17 +269,18 @@ public:
+ 	std::vector<Configuration> configs_;
+ 	std::map<PixelFormat, std::vector<const Configuration *>> formats_;
+ 
++	std::vector<std::unique_ptr<FrameBuffer>> conversionBuffers_;
++	std::queue<std::map<unsigned int, FrameBuffer *>> conversionQueue_;
++	bool useConversion_;
++
+ 	std::unique_ptr<Converter> converter_;
+-	std::vector<std::unique_ptr<FrameBuffer>> converterBuffers_;
+-	bool useConverter_;
+-	std::queue<std::map<unsigned int, FrameBuffer *>> converterQueue_;
+ 
+ private:
+ 	void tryPipeline(unsigned int code, const Size &size);
+ 	static std::vector<const MediaPad *> routedSourcePads(MediaPad *sink);
+ 
+-	void converterInputDone(FrameBuffer *buffer);
+-	void converterOutputDone(FrameBuffer *buffer);
++	void conversionInputDone(FrameBuffer *buffer);
++	void conversionOutputDone(FrameBuffer *buffer);
+ };
+ 
+ class SimpleCameraConfiguration : public CameraConfiguration
+@@ -503,8 +504,8 @@ int SimpleCameraData::init()
+ 				<< "Failed to create converter, disabling format conversion";
+ 			converter_.reset();
+ 		} else {
+-			converter_->inputBufferReady.connect(this, &SimpleCameraData::converterInputDone);
+-			converter_->outputBufferReady.connect(this, &SimpleCameraData::converterOutputDone);
++			converter_->inputBufferReady.connect(this, &SimpleCameraData::conversionInputDone);
++			converter_->outputBufferReady.connect(this, &SimpleCameraData::conversionOutputDone);
+ 		}
+ 	}
+ 
+@@ -740,7 +741,7 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)
+ 	 * point converting an erroneous buffer.
+ 	 */
+ 	if (buffer->metadata().status != FrameMetadata::FrameSuccess) {
+-		if (!useConverter_) {
++		if (!useConversion_) {
+ 			/* No conversion, just complete the request. */
+ 			Request *request = buffer->request();
+ 			pipe->completeBuffer(request, buffer);
+@@ -756,16 +757,16 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)
+ 		if (buffer->metadata().status != FrameMetadata::FrameCancelled)
+ 			video_->queueBuffer(buffer);
+ 
+-		if (converterQueue_.empty())
++		if (conversionQueue_.empty())
+ 			return;
+ 
+ 		Request *request = nullptr;
+-		for (auto &item : converterQueue_.front()) {
++		for (auto &item : conversionQueue_.front()) {
+ 			FrameBuffer *outputBuffer = item.second;
+ 			request = outputBuffer->request();
+ 			pipe->completeBuffer(request, outputBuffer);
+ 		}
+-		converterQueue_.pop();
++		conversionQueue_.pop();
+ 
+ 		if (request)
+ 			pipe->completeRequest(request);
+@@ -782,9 +783,9 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)
+ 	 */
+ 	Request *request = buffer->request();
+ 
+-	if (useConverter_ && !converterQueue_.empty()) {
++	if (useConversion_ && !conversionQueue_.empty()) {
+ 		const std::map<unsigned int, FrameBuffer *> &outputs =
+-			converterQueue_.front();
++			conversionQueue_.front();
+ 		if (!outputs.empty()) {
+ 			FrameBuffer *outputBuffer = outputs.begin()->second;
+ 			if (outputBuffer)
+@@ -801,14 +802,14 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)
+ 	 * conversion is needed. If there's no queued request, just requeue the
+ 	 * captured buffer for capture.
+ 	 */
+-	if (useConverter_) {
+-		if (converterQueue_.empty()) {
++	if (useConversion_) {
++		if (conversionQueue_.empty()) {
+ 			video_->queueBuffer(buffer);
+ 			return;
+ 		}
+ 
+-		converter_->queueBuffers(buffer, converterQueue_.front());
+-		converterQueue_.pop();
++		converter_->queueBuffers(buffer, conversionQueue_.front());
++		conversionQueue_.pop();
+ 		return;
+ 	}
+ 
+@@ -817,13 +818,13 @@ void SimpleCameraData::bufferReady(FrameBuffer *buffer)
+ 	pipe->completeRequest(request);
+ }
+ 
+-void SimpleCameraData::converterInputDone(FrameBuffer *buffer)
++void SimpleCameraData::conversionInputDone(FrameBuffer *buffer)
+ {
+ 	/* Queue the input buffer back for capture. */
+ 	video_->queueBuffer(buffer);
+ }
+ 
+-void SimpleCameraData::converterOutputDone(FrameBuffer *buffer)
++void SimpleCameraData::conversionOutputDone(FrameBuffer *buffer)
+ {
+ 	SimplePipelineHandler *pipe = SimpleCameraData::pipe();
+ 
+@@ -1159,14 +1160,14 @@ int SimplePipelineHandler::configure(Camera *camera, CameraConfiguration *c)
+ 
+ 	/* Configure the converter if needed. */
+ 	std::vector<std::reference_wrapper<StreamConfiguration>> outputCfgs;
+-	data->useConverter_ = config->needConversion();
++	data->useConversion_ = config->needConversion();
+ 
+ 	for (unsigned int i = 0; i < config->size(); ++i) {
+ 		StreamConfiguration &cfg = config->at(i);
+ 
+ 		cfg.setStream(&data->streams_[i]);
+ 
+-		if (data->useConverter_)
++		if (data->useConversion_)
+ 			outputCfgs.push_back(cfg);
+ 	}
+ 
+@@ -1192,7 +1193,7 @@ int SimplePipelineHandler::exportFrameBuffers(Camera *camera, Stream *stream,
+ 	 * Export buffers on the converter or capture video node, depending on
+ 	 * whether the converter is used or not.
+ 	 */
+-	if (data->useConverter_)
++	if (data->useConversion_)
+ 		return data->converter_->exportBuffers(data->streamIndex(stream),
+ 						       count, buffers);
+ 	else
+@@ -1213,13 +1214,13 @@ int SimplePipelineHandler::start(Camera *camera, [[maybe_unused]] const ControlL
+ 		return -EBUSY;
+ 	}
+ 
+-	if (data->useConverter_) {
++	if (data->useConversion_) {
+ 		/*
+ 		 * When using the converter allocate a fixed number of internal
+ 		 * buffers.
+ 		 */
+ 		ret = video->allocateBuffers(kNumInternalBuffers,
+-					     &data->converterBuffers_);
++					     &data->conversionBuffers_);
+ 	} else {
+ 		/* Otherwise, prepare for using buffers from the only stream. */
+ 		Stream *stream = &data->streams_[0];
+@@ -1238,7 +1239,7 @@ int SimplePipelineHandler::start(Camera *camera, [[maybe_unused]] const ControlL
+ 		return ret;
+ 	}
+ 
+-	if (data->useConverter_) {
++	if (data->useConversion_) {
+ 		ret = data->converter_->start();
+ 		if (ret < 0) {
+ 			stop(camera);
+@@ -1246,7 +1247,7 @@ int SimplePipelineHandler::start(Camera *camera, [[maybe_unused]] const ControlL
+ 		}
+ 
+ 		/* Queue all internal buffers for capture. */
+-		for (std::unique_ptr<FrameBuffer> &buffer : data->converterBuffers_)
++		for (std::unique_ptr<FrameBuffer> &buffer : data->conversionBuffers_)
+ 			video->queueBuffer(buffer.get());
+ 	}
+ 
+@@ -1258,7 +1259,7 @@ void SimplePipelineHandler::stopDevice(Camera *camera)
+ 	SimpleCameraData *data = cameraData(camera);
+ 	V4L2VideoDevice *video = data->video_;
+ 
+-	if (data->useConverter_)
++	if (data->useConversion_)
+ 		data->converter_->stop();
+ 
+ 	video->streamOff();
+@@ -1266,7 +1267,7 @@ void SimplePipelineHandler::stopDevice(Camera *camera)
+ 
+ 	video->bufferReady.disconnect(data, &SimpleCameraData::bufferReady);
+ 
+-	data->converterBuffers_.clear();
++	data->conversionBuffers_.clear();
+ 
+ 	releasePipeline(data);
+ }
+@@ -1284,7 +1285,7 @@ int SimplePipelineHandler::queueRequestDevice(Camera *camera, Request *request)
+ 		 * queue, it will be handed to the converter in the capture
+ 		 * completion handler.
+ 		 */
+-		if (data->useConverter_) {
++		if (data->useConversion_) {
+ 			buffers.emplace(data->streamIndex(stream), buffer);
+ 		} else {
+ 			ret = data->video_->queueBuffer(buffer);
+@@ -1293,8 +1294,8 @@ int SimplePipelineHandler::queueRequestDevice(Camera *camera, Request *request)
+ 		}
+ 	}
+ 
+-	if (data->useConverter_)
+-		data->converterQueue_.push(std::move(buffers));
++	if (data->useConversion_)
++		data->conversionQueue_.push(std::move(buffers));
+ 
+ 	return 0;
+ }
+-- 
+2.43.0
+