It checkes whether AndroidFastbootApp exists in boot menu.
If it exists, add hotkey 'F' to AndroidFastbootApp.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c b/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
index 61ab61c..54c297c 100644
--- a/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
+++ b/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
@@ -389,6 +389,31 @@ PlatformRegisterFvBootOption (
   EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);
 }
 
+STATIC
+UINTN
+PlatformFindBootOptionByDescription (
+  IN CHAR16                  *Description
+  )
+{
+  UINTN                        BootOptionCount;
+  EFI_BOOT_MANAGER_LOAD_OPTION *BootOptions;
+  UINTN                        Index;
+  UINTN                        OptionIndex;
+
+  OptionIndex = LoadOptionNumberUnassigned;
+  BootOptions = EfiBootManagerGetLoadOptions (&BootOptionCount, LoadOptionTypeBoot);
+
+  for (Index = 0; Index < BootOptionCount; Index++) {
+    if (StrnCmp (Description, BootOptions[Index].Description, StrLen (BootOptions[Index].Description)) == 0) {
+      OptionIndex = BootOptions[Index].OptionNumber;
+      break;
+    }
+  }
+
+  EfiBootManagerFreeLoadOptions (BootOptions, BootOptionCount);
+  return OptionIndex;
+}
+
 
 STATIC
 VOID
@@ -400,7 +425,9 @@ PlatformRegisterOptionsAndKeys (
   EFI_INPUT_KEY                Enter;
   EFI_INPUT_KEY                F2;
   EFI_INPUT_KEY                Esc;
+  EFI_INPUT_KEY                KeyF;
   EFI_BOOT_MANAGER_LOAD_OPTION BootOption;
+  UINTN                        OptionNumber;
 
   //
   // Register ENTER as CONTINUE key
@@ -427,6 +454,19 @@ PlatformRegisterOptionsAndKeys (
              NULL, (UINT16) BootOption.OptionNumber, 0, &Esc, NULL
              );
   ASSERT (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED);
+
+  //
+  // Map F to "Android Fastboot App"
+  //
+  KeyF.ScanCode    = SCAN_NULL;
+  KeyF.UnicodeChar = 'f';
+  OptionNumber = PlatformFindBootOptionByDescription (L"Android Fastboot");
+  if (OptionNumber != LoadOptionNumberUnassigned) {
+    Status = EfiBootManagerAddKeyOptionVariable (
+               NULL, (UINT16) OptionNumber, 0, &KeyF, NULL
+               );
+    ASSERT (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED);
+  }
 }
 
 
-- 
2.7.4

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