Change the SimpleTextInEx implementation to return CTRL+C when CTRL and C are both...

[mirror_edk2.git] / MdeModulePkg / Bus / Usb / UsbKbDxe / EfiKey.c

diff --git a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c
index c576b70f46656c1abe614050172ef080a6cc4640..e4491401e8ccc785aa5eaabde60f79978e53eac8 100644 (file)
--- a/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c
+++ b/MdeModulePkg/Bus/Usb/UsbKbDxe/EfiKey.c
@@ -692,6 +692,18 @@ USBKeyboardReadKeyStroke (
     if (KeyData.Key.ScanCode == CHAR_NULL && KeyData.Key.UnicodeChar == SCAN_NULL) {\r
       continue;\r
     }\r
+    //\r
+    // Translate the CTRL-Alpha characters to their corresponding control value\r
+    // (ctrl-a = 0x0001 through ctrl-Z = 0x001A)\r
+    //\r
+    if ((KeyData.KeyState.KeyShiftState & (EFI_LEFT_CONTROL_PRESSED | EFI_RIGHT_CONTROL_PRESSED)) != 0) {\r
+      if (KeyData.Key.UnicodeChar >= L'a' && KeyData.Key.UnicodeChar <= L'z') {\r
+        KeyData.Key.UnicodeChar = (CHAR16) (KeyData.Key.UnicodeChar - L'a' + 1);\r
+      } else if (KeyData.Key.UnicodeChar >= L'A' && KeyData.Key.UnicodeChar <= L'Z') {\r
+        KeyData.Key.UnicodeChar = (CHAR16) (KeyData.Key.UnicodeChar - L'A' + 1);\r
+      }\r
+    }\r
+\r
     CopyMem (Key, &KeyData.Key, sizeof (EFI_INPUT_KEY));\r
     return EFI_SUCCESS;\r
   }\r