REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2219

Refer to
https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter4.html#config-appcursor
In normal mode, arrow key would send ESC [A through to ESC [D.
In application mode, arrow key would send ESC OA through to
ESC OD.

Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Hao A Wu <hao.a...@intel.com>
Cc: Ray Ni <ray...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Signed-off-by: Zhichao Gao <zhichao....@intel.com>
---
 .../Console/TerminalDxe/TerminalConIn.c       | 46 ++++++++++++++++---
 1 file changed, 40 insertions(+), 6 deletions(-)

diff --git a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c 
b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
index ac31f27984..fdb1a0f1ef 100644
--- a/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
+++ b/MdeModulePkg/Universal/Console/TerminalDxe/TerminalConIn.c
@@ -1402,10 +1402,7 @@ UnicodeToEfiKey (
         continue;
       }
 
-      if (UnicodeChar == 'O' && (TerminalDevice->TerminalType == 
TerminalTypeVt100 ||
-                                 TerminalDevice->TerminalType == 
TerminalTypeTtyTerm ||
-                                 TerminalDevice->TerminalType == 
TerminalTypeXtermR6 ||
-                                 TerminalDevice->TerminalType == 
TerminalTypeVt100Plus)) {
+      if (UnicodeChar == 'O') {
         TerminalDevice->InputState |= INPUT_STATE_O;
         TerminalDevice->ResetState = RESET_STATE_DEFAULT;
         continue;
@@ -1631,6 +1628,35 @@ UnicodeToEfiKey (
         }
       }
 
+      //
+      // In Putty application mode, the arrow keys would send
+      // ESC OA through to ESC OD
+      //
+      if (TerminalDevice->TerminalType == TerminalTypePcAnsi    ||
+          TerminalDevice->TerminalType == TerminalTypeVt100     ||
+          TerminalDevice->TerminalType == TerminalTypeVt100Plus ||
+          TerminalDevice->TerminalType == TerminalTypeVtUtf8    ||
+          TerminalDevice->TerminalType == TerminalTypeTtyTerm   ||
+          TerminalDevice->TerminalType == TerminalTypeLinux     ||
+          TerminalDevice->TerminalType == TerminalTypeXtermR6   ||
+          TerminalDevice->TerminalType == TerminalTypeVt400     ||
+          TerminalDevice->TerminalType == TerminalTypeSCO) {
+        switch (UnicodeChar) {
+        case 'A':
+          Key.ScanCode = SCAN_UP;
+          break;
+        case 'B':
+          Key.ScanCode = SCAN_DOWN;
+          break;
+        case 'C':
+          Key.ScanCode = SCAN_RIGHT;
+          break;
+        case 'D':
+          Key.ScanCode = SCAN_LEFT;
+          break;
+        }
+      }
+
       if (Key.ScanCode != SCAN_NULL) {
         Key.UnicodeChar = 0;
         EfiKeyFiFoInsertOneKey (TerminalDevice, &Key);
@@ -1668,10 +1694,18 @@ UnicodeToEfiKey (
 
       Key.ScanCode = SCAN_NULL;
 
+      //
+      // In Putty normal mode, the arrow keys would send
+      // ESC [A through to [D
+      //
       if (TerminalDevice->TerminalType == TerminalTypePcAnsi    ||
           TerminalDevice->TerminalType == TerminalTypeVt100     ||
-          TerminalDevice->TerminalType == TerminalTypeVtUtf8 ||
-          TerminalDevice->TerminalType == TerminalTypeTtyTerm ||
+          TerminalDevice->TerminalType == TerminalTypeVt100Plus ||
+          TerminalDevice->TerminalType == TerminalTypeVtUtf8    ||
+          TerminalDevice->TerminalType == TerminalTypeTtyTerm   ||
+          TerminalDevice->TerminalType == TerminalTypeLinux     ||
+          TerminalDevice->TerminalType == TerminalTypeXtermR6   ||
+          TerminalDevice->TerminalType == TerminalTypeVt400     ||
           TerminalDevice->TerminalType == TerminalTypeSCO) {
         switch (UnicodeChar) {
         case 'A':
-- 
2.21.0.windows.1


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