4 files changed, 21 insertions, 1 deletions
diff --git a/UefiMonitorTest/MainMenu.c b/UefiMonitorTest/MainMenu.c
index 85c9e64..df13779 100644
--- a/UefiMonitorTest/MainMenu.c
+++ b/UefiMonitorTest/MainMenu.c
@@ -87,6 +87,15 @@ MainMenuTip (
 }
 
 VOID
+MainMenuChangeParam (
+  IN  UMT_CONTEXT *Ctx,
+  IN  INT8        ParamStep
+  )
+{
+  
+}
+
+VOID
 MainMenuChangeValue (
   IN  UMT_CONTEXT *Ctx,
   IN  INT8        ValueStep
diff --git a/UefiMonitorTest/MainMenu.h b/UefiMonitorTest/MainMenu.h
index 0b97250..e50418a 100644
--- a/UefiMonitorTest/MainMenu.h
+++ b/UefiMonitorTest/MainMenu.h
@@ -19,6 +19,12 @@ MainMenuTip (
   );
 
 VOID
+MainMenuChangeParam (
+  IN  UMT_CONTEXT *Ctx,
+  IN  INT8        ParamStep
+  );
+
+VOID
 MainMenuChangeValue (
   IN  UMT_CONTEXT *Ctx,
   IN  INT8        ValueStep
diff --git a/UefiMonitorTest/UefiMonitorTest.c b/UefiMonitorTest/UefiMonitorTest.c
index c7034f0..63429d7 100644
--- a/UefiMonitorTest/UefiMonitorTest.c
+++ b/UefiMonitorTest/UefiMonitorTest.c
@@ -12,7 +12,7 @@
 #include "MainMenu.h"
 
 STATIC CONST UMT_STATE_ACTIONS mStateActions[UMT_STATE_END] = {
-  { MainMenuInit, MainMenuDoit, MainMenuTip, MainMenuChangeValue }
+  { MainMenuInit, MainMenuDoit, MainMenuTip, MainMenuChangeParam, MainMenuChangeValue }
 };
 
 EFI_HII_HANDLE gUmtHiiHandle = NULL;
@@ -148,7 +148,11 @@ HandleInput (
 
   switch (KeyData.Key.ScanCode) {
     case SCAN_UP:
+      Ctx->Actions->ChangeParam (Ctx, -1);
+      break;
+
     case SCAN_DOWN:
+      Ctx->Actions->ChangeParam (Ctx, +1);
       break;
 
     case SCAN_RIGHT:
diff --git a/UefiMonitorTest/UefiMonitorTest.h b/UefiMonitorTest/UefiMonitorTest.h
index 0138bce..185b900 100644
--- a/UefiMonitorTest/UefiMonitorTest.h
+++ b/UefiMonitorTest/UefiMonitorTest.h
@@ -12,6 +12,7 @@ typedef struct {
   VOID (*Init)(UMT_CONTEXT *);
   VOID (*Doit)(UMT_CONTEXT *);
   VOID (*Tip)(UMT_CONTEXT *);
+  VOID (*ChangeParam)(UMT_CONTEXT *, INT8);
   VOID (*ChangeValue)(UMT_CONTEXT *, INT8);
 } UMT_STATE_ACTIONS;