[custom op] Implement custom op registration using public API (#7181)

* [custom op] Implement custom op registration using public API

Adds public custom operation registration method

Signed-off-by: Vladimir Plazun <v.plazun@samsung.com>

* format fix

4 files changed, 32 insertions, 1 deletions

diff --git a/runtimes/include/nnfw_dev.h b/runtimes/include/nnfw_dev.h
index b4e62fa3b..5886377d8 100644
--- a/runtimes/include/nnfw_dev.h
+++ b/runtimes/include/nnfw_dev.h
@@ -58,4 +58,7 @@ typedef struct
   nnfw_custom_eval eval_function;
 } custom_kernel_registration_info;
 
+NNFW_STATUS nnfw_register_custom_op_info(nnfw_session *session, const char *id,
+                                         custom_kernel_registration_info *info);
+
 #endif // __NNFW_DEV_H__
diff --git a/runtimes/neurun/frontend/api/nnfw_dev.cc b/runtimes/neurun/frontend/api/nnfw_dev.cc
index 3c8178b43..642cb1fb3 100644
--- a/runtimes/neurun/frontend/api/nnfw_dev.cc
+++ b/runtimes/neurun/frontend/api/nnfw_dev.cc
@@ -163,3 +163,16 @@ NNFW_STATUS nnfw_output_tensorinfo(nnfw_session *session, uint32_t index,
 {
   return session->output_tensorinfo(index, tensor_info);
 }
+
+/*
+ * Register custom operation
+ * @param session session to register this operation
+ * @param id operation id
+ * @param info registration info ( eval function, etc. )
+ * @return NNFW_STATUS_NO_ERROR if successful
+ */
+NNFW_STATUS nnfw_register_custom_op_info(nnfw_session *session, const char *id,
+                                         custom_kernel_registration_info *info)
+{
+  return session->register_custom_operation(id, info->eval_function);
+}
diff --git a/runtimes/neurun/frontend/api/wrapper/nnfw_api.cc b/runtimes/neurun/frontend/api/wrapper/nnfw_api.cc
index 49474fd4c..6b8a53dda 100644
--- a/runtimes/neurun/frontend/api/wrapper/nnfw_api.cc
+++ b/runtimes/neurun/frontend/api/wrapper/nnfw_api.cc
@@ -23,7 +23,9 @@
 #include <limits.h>
 #include <stdint.h>
 
-nnfw_session::nnfw_session() : _graph{nullptr}, _execution{nullptr}
+nnfw_session::nnfw_session()
+    : _graph{nullptr}, _execution{nullptr},
+      _kernel_registry{new neurun::backend::custom::KernelRegistry}
 {
   // DO NOTHING
 }
@@ -53,6 +55,7 @@ NNFW_STATUS nnfw_session::load_model_from_file(const char *package_dir)
 
     auto model = nnfw::cpp14::make_unique<neurun::model::Model>();
     _graph = std::make_shared<neurun::graph::Graph>(std::move(model));
+    _graph->bindKernelRegistry(_kernel_registry);
     tflite_loader::Loader loader(*_graph);
     auto model_file_path = package_dir + std::string("/") + models[0].asString(); // first model
     loader.loadFromFile(model_file_path.c_str());
@@ -255,3 +258,10 @@ NNFW_STATUS nnfw_session::output_tensorinfo(uint32_t index, nnfw_tensorinfo *ti)
   }
   return NNFW_STATUS_NO_ERROR;
 }
+
+NNFW_STATUS nnfw_session::register_custom_operation(const std::string &id,
+                                                    nnfw_custom_eval eval_func)
+{
+  _kernel_registry->registerKernel(id, eval_func);
+  return NNFW_STATUS_NO_ERROR;
+}
diff --git a/runtimes/neurun/frontend/api/wrapper/nnfw_api.hpp b/runtimes/neurun/frontend/api/wrapper/nnfw_api.hpp
index 8efdd77b9..f616f8100 100644
--- a/runtimes/neurun/frontend/api/wrapper/nnfw_api.hpp
+++ b/runtimes/neurun/frontend/api/wrapper/nnfw_api.hpp
@@ -18,9 +18,11 @@
 #define __API_NNFW_INTERNAL_HPP__
 
 #include "nnfw.h"
+#include "nnfw_dev.h"
 #include "compiler/Compiler.h"
 #include "exec/Execution.h"
 #include "graph/Graph.h"
+#include "backend/CustomKernelRegistry.h"
 
 struct nnfw_session
 {
@@ -40,9 +42,12 @@ public:
   NNFW_STATUS input_tensorinfo(uint32_t index, nnfw_tensorinfo *ti);
   NNFW_STATUS output_tensorinfo(uint32_t index, nnfw_tensorinfo *ti);
 
+  NNFW_STATUS register_custom_operation(const std::string &id, nnfw_custom_eval eval_func);
+
 private:
   std::shared_ptr<neurun::graph::Graph> _graph;
   std::shared_ptr<neurun::exec::Execution> _execution;
+  std::shared_ptr<neurun::backend::custom::KernelRegistry> _kernel_registry;
 };
 
 #endif // __API_NNFW_INTERNAL_HPP__