Implement the code related to the GetMixedComponentVersion()

Change-Id: I98aad97b4cb6498b7f2fc03a2d5ee7c9e949d5f1
Signed-off-by: Chen Gong <curry.gong@amd.com>

include/rdc/rdc_private.h

@@ -0,0 +1,66 @@
+
+#ifndef INCLUDE_RDC_RDC_PRIVATE_H_
+#define INCLUDE_RDC_RDC_PRIVATE_H_
+
+#include "rdc/rdc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif  // __cplusplus
+
+#ifdef __cplusplus
+
+// cstddef include causes issues on older GCC
+// use stddef.h instead
+#if __GNUC__ < 9
+#include <stddef.h>
+#else
+#include <cstddef>
+#endif  // __GNUC__
+
+#include <cstdint>
+#else
+#include <stddef.h>
+#include <stdint.h>
+#endif  // __cplusplus
+
+/**
+ * @brief The maximum string length occupied by version information.
+ */
+#define USR_MAX_VERSION_STR_LENGTH 60
+
+/**
+ * @brief Version information of mixed components
+ */
+typedef struct {
+  char version[USR_MAX_VERSION_STR_LENGTH];
+} mixed_component_version_t;
+
+/**
+ * @brief Type of Components
+ */
+typedef enum {
+  RDCD_COMPONENT
+  //If needed later, add them one by one
+} mixed_component_t;
+
+/**
+ *  @brief Get ersion information of mixed components.
+ *
+ *  @details Given a component type, return its version information.
+ *
+ *  @param[in] p_rdc_handle The RDC handler.
+ *
+ *  @param[in] component Component type.
+ *
+ *  @param[out] p_mixed_compv Version information of the corresponding component.
+ *
+ *  @retval ::RDC_ST_OK is returned upon successful call.
+ */
+rdc_status_t get_mixed_component_version(rdc_handle_t p_rdc_handle, mixed_component_t component, mixed_component_version_t* p_mixed_compv);
+
+#ifdef __cplusplus
+}
+#endif  // __cplusplus
+
+#endif  // INCLUDE_RDC_RDC_PRIVATE_H_

include/rdc_lib/RdcHandler.h

@@ -23,6 +23,7 @@ THE SOFTWARE.
 #define INCLUDE_RDC_LIB_RDCHANDLER_H_
 
 #include "rdc/rdc.h"
+#include "rdc/rdc_private.h"
 #include "rdc_lib/rdc_common.h"
 
 namespace amd {
@@ -88,6 +89,10 @@ class RdcHandler {
   // Control API
   virtual rdc_status_t rdc_field_update_all(uint32_t wait_for_update) = 0;
 
+  // It is just a client interface under the GRPC framework and is not used as an RDC API.
+  // The reason is that RdcEmbeddedHandler::get_mixed_component_version does not need to be called.
+  virtual rdc_status_t get_mixed_component_version(mixed_component_t component, mixed_component_version_t* p_mixed_compv) = 0;
+
   virtual ~RdcHandler() {}
 };
 

include/rdc_lib/impl/RdcEmbeddedHandler.h

@@ -91,6 +91,10 @@ class RdcEmbeddedHandler final : public RdcHandler {
   // Control API
   rdc_status_t rdc_field_update_all(uint32_t wait_for_update) override;
 
+  // It is just a client interface under the GRPC framework and is not used as an RDC API.
+  // Pure virtual functions need to be overridden.
+  rdc_status_t get_mixed_component_version(mixed_component_t component, mixed_component_version_t* p_mixed_compv) override;
+
   explicit RdcEmbeddedHandler(rdc_operation_mode_t op_mode);
   ~RdcEmbeddedHandler() final;
 

include/rdc_lib/impl/RdcStandaloneHandler.h

@@ -86,6 +86,10 @@ class RdcStandaloneHandler : public RdcHandler {
   // Control RdcAPI
   rdc_status_t rdc_field_update_all(uint32_t wait_for_update) override;
 
+  // It is just a client interface under the GRPC framework and is not used as an RDC API.
+  // Pure virtual functions need to be overridden
+  rdc_status_t get_mixed_component_version(mixed_component_t component, mixed_component_version_t* p_mixed_compv) override;
+
   explicit RdcStandaloneHandler(const char* ip_and_port, const char* root_ca,
                                 const char* client_cert, const char* client_key);