From 42c9b4bad40b462ef267b477e136202f02071137 Mon Sep 17 00:00:00 2001
From: Paul Elder <paul.elder@ideasonboard.com>
Date: Mon, 3 Jun 2019 13:20:23 -0400
Subject: libcamera: ipa_module: match IPA module with pipeline handler

Add a method to IPAModule to check if it matches with a given pipeline
handler and pipeline version range.

Signed-off-by: Paul Elder <paul.elder@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 src/libcamera/include/ipa_module.h |  5 +++++
 src/libcamera/ipa_module.cpp       | 20 ++++++++++++++++++++
 2 files changed, 25 insertions(+)

(limited to 'src')

diff --git a/src/libcamera/include/ipa_module.h b/src/libcamera/include/ipa_module.h
index 7ac5cad5..fec42371 100644
--- a/src/libcamera/include/ipa_module.h
+++ b/src/libcamera/include/ipa_module.h
@@ -13,6 +13,8 @@
 #include <libcamera/ipa/ipa_interface.h>
 #include <libcamera/ipa/ipa_module_info.h>
 
+#include "pipeline_handler.h"
+
 namespace libcamera {
 
 class IPAModule
@@ -29,6 +31,9 @@ public:
 
 	std::unique_ptr<IPAInterface> createInstance();
 
+	bool match(PipelineHandler *pipe,
+		   uint32_t minVersion, uint32_t maxVersion) const;
+
 private:
 	struct IPAModuleInfo info_;
 
diff --git a/src/libcamera/ipa_module.cpp b/src/libcamera/ipa_module.cpp
index 5490f9b6..2663b9ef 100644
--- a/src/libcamera/ipa_module.cpp
+++ b/src/libcamera/ipa_module.cpp
@@ -18,6 +18,7 @@
 #include <unistd.h>
 
 #include "log.h"
+#include "pipeline_handler.h"
 
 /**
  * \file ipa_module.h
@@ -391,4 +392,23 @@ std::unique_ptr<IPAInterface> IPAModule::createInstance()
 	return std::unique_ptr<IPAInterface>(ipaCreate_());
 }
 
+/**
+ * \brief Verify if the IPA module maches a given pipeline handler
+ * \param[in] pipe Pipeline handler to match with
+ * \param[in] minVersion Minimum acceptable version of IPA module
+ * \param[in] maxVersion Maximum acceptable version of IPA module
+ *
+ * This method checks if this IPA module matches the \a pipe pipeline handler,
+ * and the input version range.
+ *
+ * \return True if the pipeline handler matches the IPA module, or false otherwise
+ */
+bool IPAModule::match(PipelineHandler *pipe,
+		      uint32_t minVersion, uint32_t maxVersion) const
+{
+	return info_.pipelineVersion >= minVersion &&
+	       info_.pipelineVersion <= maxVersion &&
+	       !strcmp(info_.pipelineName, pipe->name());
+}
+
 } /* namespace libcamera */
-- 
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