[PATCH] UefiPayloadPkg: Make Boot Manager Key configurable

["Sean Rhodes" <sean@starlabs.systems>]

Provide a build option to use [Esc] instead of [F2] for devices
such as Chromebooks that don't have F-keys.

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
---
 .../PlatformBootManager.c                     | 44 +++++++++++++------
 .../PlatformBootManagerLib.inf                |  1 +
 UefiPayloadPkg/UefiPayloadPkg.dec             |  3 ++
 UefiPayloadPkg/UefiPayloadPkg.dsc             |  4 ++
 4 files changed, 39 insertions(+), 13 deletions(-)

diff --git a/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c b/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
index a8ead775ea..0eb577313a 100644
--- a/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
+++ b/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManager.c
@@ -164,7 +164,7 @@ PlatformBootManagerBeforeConsole (
   )
 {
   EFI_INPUT_KEY                 Enter;
-  EFI_INPUT_KEY                 F2;
+  EFI_INPUT_KEY                 CustomKey;
   EFI_INPUT_KEY                 Down;
   EFI_BOOT_MANAGER_LOAD_OPTION  BootOption;
   EFI_STATUS                    Status;
@@ -186,13 +186,22 @@ PlatformBootManagerBeforeConsole (
   Enter.UnicodeChar = CHAR_CARRIAGE_RETURN;
   EfiBootManagerRegisterContinueKeyOption (0, &Enter, NULL);
 
-  //
-  // Map F2 to Boot Manager Menu
-  //
-  F2.ScanCode    = SCAN_F2;
-  F2.UnicodeChar = CHAR_NULL;
+  if (FixedPcdGetBool (PcdBootManagerEscape)) {
+    //
+    // Map Esc to Boot Manager Menu
+    //
+    CustomKey.ScanCode    = SCAN_ESC;
+    CustomKey.UnicodeChar = CHAR_NULL;
+  } else {
+    //
+    // Map Esc to Boot Manager Menu
+    //
+    CustomKey.ScanCode    = SCAN_F2;
+    CustomKey.UnicodeChar = CHAR_NULL;
+  }
+
   EfiBootManagerGetBootManagerMenu (&BootOption);
-  EfiBootManagerAddKeyOptionVariable (NULL, (UINT16)BootOption.OptionNumber, 0, &F2, NULL);
+  EfiBootManagerAddKeyOptionVariable (NULL, (UINT16)BootOption.OptionNumber, 0, &CustomKey, NULL);
 
   //
   // Also add Down key to Boot Manager Menu since some serial terminals don't support F2 key.
@@ -251,12 +260,21 @@ PlatformBootManagerAfterConsole (
   //
   PlatformRegisterFvBootOption (PcdGetPtr (PcdShellFile), L"UEFI Shell", LOAD_OPTION_ACTIVE);
 
-  Print (
-    L"\n"
-    L"F2 or Down      to enter Boot Manager Menu.\n"
-    L"ENTER           to boot directly.\n"
-    L"\n"
-    );
+  if (FixedPcdGetBool (PcdBootManagerEscape)) {
+    Print (
+      L"\n"
+      L"Esc or Down      to enter Boot Manager Menu.\n"
+      L"ENTER           to boot directly.\n"
+      L"\n"
+      );
+  } else {
+    Print (
+      L"\n"
+      L"F2 or Down      to enter Boot Manager Menu.\n"
+      L"ENTER           to boot directly.\n"
+      L"\n"
+      );
+  }
 }
 
 /**
diff --git a/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf b/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
index 9c4a9da943..80390e0d98 100644
--- a/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
+++ b/UefiPayloadPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
@@ -73,3 +73,4 @@
   gEfiMdePkgTokenSpaceGuid.PcdUartDefaultParity
   gEfiMdePkgTokenSpaceGuid.PcdUartDefaultStopBits
   gEfiMdeModulePkgTokenSpaceGuid.PcdBootManagerMenuFile
+  gUefiPayloadPkgTokenSpaceGuid.PcdBootManagerEscape
diff --git a/UefiPayloadPkg/UefiPayloadPkg.dec b/UefiPayloadPkg/UefiPayloadPkg.dec
index 551f0a4915..f2fcdf6a74 100644
--- a/UefiPayloadPkg/UefiPayloadPkg.dec
+++ b/UefiPayloadPkg/UefiPayloadPkg.dec
@@ -83,6 +83,9 @@ gUefiPayloadPkgTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000|UINT32|0x
 
 gUefiPayloadPkgTokenSpaceGuid.PcdPcdDriverFile|{ 0x57, 0x72, 0xcf, 0x80, 0xab, 0x87, 0xf9, 0x47, 0xa3, 0xfe, 0xD5, 0x0B, 0x76, 0xd8, 0x95, 0x41 }|VOID*|0x00000018
 
+# Boot Manager Key
+gUefiPayloadPkgTokenSpaceGuid.PcdBootManagerEscape|FALSE|BOOLEAN|0x00000020
+
 ## FFS filename to find the default variable initial data file.
 # @Prompt FFS Name of variable initial data file
  gUefiPayloadPkgTokenSpaceGuid.PcdNvsDataFile |{ 0x1a, 0xf1, 0xb1, 0xae, 0x42, 0xcc, 0xcf, 0x4e, 0xac, 0x60, 0xdb, 0xab, 0xf6, 0xca, 0x69, 0xe6 }|VOID*|0x00000025
diff --git a/UefiPayloadPkg/UefiPayloadPkg.dsc b/UefiPayloadPkg/UefiPayloadPkg.dsc
index 1ce96a51c1..5e1892458e 100644
--- a/UefiPayloadPkg/UefiPayloadPkg.dsc
+++ b/UefiPayloadPkg/UefiPayloadPkg.dsc
@@ -33,6 +33,8 @@
   DEFINE UNIVERSAL_PAYLOAD            = FALSE
   DEFINE SECURITY_STUB_ENABLE         = TRUE
   DEFINE SMM_SUPPORT                  = FALSE
+  DEFINE BOOT_MANAGER_ESCAPE          = FALSE
+  DEFINE PLATFORM_BOOT_TIMEOUT        = 3
   #
   # SBL:      UEFI payload for Slim Bootloader
   # COREBOOT: UEFI payload for coreboot
@@ -399,6 +401,8 @@
   gEfiMdePkgTokenSpaceGuid.PcdPerformanceLibraryPropertyMask       | 0x1
 !endif
 
+  gUefiPayloadPkgTokenSpaceGuid.PcdBootManagerEscape|$(BOOT_MANAGER_ESCAPE)
+
 [PcdsPatchableInModule.X64]
   gPcAtChipsetPkgTokenSpaceGuid.PcdRtcIndexRegister|$(RTC_INDEX_REGISTER)
   gPcAtChipsetPkgTokenSpaceGuid.PcdRtcTargetRegister|$(RTC_TARGET_REGISTER)
-- 
2.32.0