4 files changed, 58 insertions, 0 deletions
diff --git a/src/libcamera/include/ipa_context_wrapper.h b/src/libcamera/include/ipa_context_wrapper.h
index c9e19412..0a48bfe7 100644
--- a/src/libcamera/include/ipa_context_wrapper.h
+++ b/src/libcamera/include/ipa_context_wrapper.h
@@ -20,6 +20,8 @@ public:
 	~IPAContextWrapper();
 
 	int init() override;
+	int start() override;
+	void stop() override;
 	void configure(const std::map<unsigned int, IPAStream> &streamConfig,
 		       const std::map<unsigned int, const ControlInfoMap &> &entityControls) override;
 
diff --git a/src/libcamera/ipa_context_wrapper.cpp b/src/libcamera/ipa_context_wrapper.cpp
index 946a2fd8..ab6ce396 100644
--- a/src/libcamera/ipa_context_wrapper.cpp
+++ b/src/libcamera/ipa_context_wrapper.cpp
@@ -82,6 +82,28 @@ int IPAContextWrapper::init()
 	return 0;
 }
 
+int IPAContextWrapper::start()
+{
+	if (intf_)
+		return intf_->start();
+
+	if (!ctx_)
+		return 0;
+
+	return ctx_->ops->start(ctx_);
+}
+
+void IPAContextWrapper::stop()
+{
+	if (intf_)
+		return intf_->stop();
+
+	if (!ctx_)
+		return;
+
+	ctx_->ops->stop(ctx_);
+}
+
 void IPAContextWrapper::configure(const std::map<unsigned int, IPAStream> &streamConfig,
 				  const std::map<unsigned int, const ControlInfoMap &> &entityControls)
 {
diff --git a/src/libcamera/ipa_interface.cpp b/src/libcamera/ipa_interface.cpp
index 5959e7de..0b785bdf 100644
--- a/src/libcamera/ipa_interface.cpp
+++ b/src/libcamera/ipa_interface.cpp
@@ -236,6 +236,20 @@
  */
 
 /**
+ * \var ipa_context_ops::start
+ * \brief Start the IPA context
+ *
+ * \sa libcamera::IPAInterface::start()
+ */
+
+/**
+ * \var ipa_context_ops::stop
+ * \brief Stop the IPA context
+ *
+ * \sa libcamera::IPAInterface::stop()
+ */
+
+/**
  * \var ipa_context_ops::register_callbacks
  * \brief Register callback operation from the IPA to the pipeline handler
  * \param[in] ctx The IPA context
@@ -413,6 +427,24 @@ namespace libcamera {
  */
 
 /**
+ * \fn IPAInterface::start()
+ * \brief Start the IPA
+ *
+ * This method informs the IPA module that the camera is about to be started.
+ * The IPA module shall prepare any resources it needs to operate.
+ *
+ * \return 0 on success or a negative error code otherwise
+ */
+
+/**
+ * \fn IPAInterface::stop()
+ * \brief Stop the IPA
+ *
+ * This method informs the IPA module that the camera is stopped. The IPA module
+ * shall release resources prepared in start().
+ */
+
+/**
  * \fn IPAInterface::configure()
  * \brief Configure the IPA stream and sensor settings
  * \param[in] streamConfig Configuration of all active streams
diff --git a/src/libcamera/proxy/ipa_proxy_linux.cpp b/src/libcamera/proxy/ipa_proxy_linux.cpp
index c7218fb4..2aa80b94 100644
--- a/src/libcamera/proxy/ipa_proxy_linux.cpp
+++ b/src/libcamera/proxy/ipa_proxy_linux.cpp
@@ -27,6 +27,8 @@ public:
 	~IPAProxyLinux();
 
 	int init() override { return 0; }
+	int start() override { return 0; }
+	void stop() override {}
 	void configure(const std::map<unsigned int, IPAStream> &streamConfig,
 		       const std::map<unsigned int, const ControlInfoMap &> &entityControls) override {}
 	void mapBuffers(const std::vector<IPABuffer> &buffers) override {}