diff options
| -rw-r--r-- | EmbeddedPkg/Drivers/FdtPlatformDxe/FdtPlatform.c | 112 |
1 files changed, 110 insertions, 2 deletions
diff --git a/EmbeddedPkg/Drivers/FdtPlatformDxe/FdtPlatform.c b/EmbeddedPkg/Drivers/FdtPlatformDxe/FdtPlatform.c index 8702765c6a..b5ae8c0bb5 100644 --- a/EmbeddedPkg/Drivers/FdtPlatformDxe/FdtPlatform.c +++ b/EmbeddedPkg/Drivers/FdtPlatformDxe/FdtPlatform.c @@ -50,6 +50,10 @@ STATIC CHAR16* EFIAPI ShellDynCmdSetFdtGetHelp ( IN CONST CHAR8 *Language
);
+STATIC VOID DisplayFdtDevicePaths (
+ VOID
+ );
+
STATIC SHELL_STATUS UpdateFdtTextDevicePath (
IN EFI_SHELL_PROTOCOL *Shell,
IN CONST CHAR16 *FilePath
@@ -478,10 +482,10 @@ ShellDynCmdSetFdtHandler ( switch (ShellCommandLineGetCount (ParamPackage)) {
case 1:
//
- // Case "setfdt -i"
+ // Case "setfdt" or "setfdt -i"
//
if (!ShellCommandLineGetFlag (ParamPackage, L"-i")) {
- Status = EFI_INVALID_PARAMETER;
+ DisplayFdtDevicePaths ();
}
break;
@@ -557,6 +561,7 @@ ShellDynCmdSetFdtHandler ( Status
);
}
+ DisplayFdtDevicePaths ();
}
}
@@ -602,6 +607,109 @@ ShellDynCmdSetFdtGetHelp ( }
/**
+ Display FDT device paths.
+
+ Display in text form the device paths used to install the FDT from the
+ highest to the lowest priority.
+
+**/
+STATIC
+VOID
+DisplayFdtDevicePaths (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UINTN DataSize;
+ CHAR16 *TextDevicePath;
+ CHAR16 *TextDevicePaths;
+ CHAR16 *TextDevicePathSeparator;
+
+ ShellPrintHiiEx (
+ -1, -1, NULL,
+ STRING_TOKEN (STR_SETFDT_DEVICE_PATH_LIST),
+ mFdtPlatformDxeHiiHandle
+ );
+
+ if (FeaturePcdGet (PcdOverridePlatformFdt)) {
+ DataSize = 0;
+ Status = gRT->GetVariable (
+ L"Fdt",
+ &gFdtVariableGuid,
+ NULL,
+ &DataSize,
+ NULL
+ );
+
+ //
+ // Keep going only if the "Fdt" variable is defined.
+ //
+
+ if (Status == EFI_BUFFER_TOO_SMALL) {
+ TextDevicePath = AllocatePool (DataSize);
+ if (TextDevicePath == NULL) {
+ return;
+ }
+
+ Status = gRT->GetVariable (
+ L"Fdt",
+ &gFdtVariableGuid,
+ NULL,
+ &DataSize,
+ TextDevicePath
+ );
+ if (!EFI_ERROR (Status)) {
+ ShellPrintHiiEx (
+ -1, -1, NULL,
+ STRING_TOKEN (STR_SETFDT_DEVICE_PATH),
+ mFdtPlatformDxeHiiHandle,
+ TextDevicePath
+ );
+ }
+
+ FreePool (TextDevicePath);
+ }
+ }
+
+ //
+ // Loop over the device path list provided by "PcdFdtDevicePaths". The device
+ // paths are in text form and separated by a semi-colon.
+ //
+
+ TextDevicePaths = AllocateCopyPool (
+ StrSize ((CHAR16*)PcdGetPtr (PcdFdtDevicePaths)),
+ (CHAR16*)PcdGetPtr (PcdFdtDevicePaths)
+ );
+ if (TextDevicePaths == NULL) {
+ return;
+ }
+
+ for (TextDevicePath = TextDevicePaths;
+ *TextDevicePath != L'\0' ; ) {
+ TextDevicePathSeparator = StrStr (TextDevicePath, L";");
+
+ if (TextDevicePathSeparator != NULL) {
+ *TextDevicePathSeparator = L'\0';
+ }
+
+ ShellPrintHiiEx (
+ -1, -1, NULL,
+ STRING_TOKEN (STR_SETFDT_DEVICE_PATH),
+ mFdtPlatformDxeHiiHandle,
+ TextDevicePath
+ );
+
+ if (TextDevicePathSeparator == NULL) {
+ break;
+ }
+ TextDevicePath = TextDevicePathSeparator + 1;
+ }
+
+ FreePool (TextDevicePaths);
+
+}
+
+/**
Update the text device path stored in the "Fdt" UEFI variable given
an EFI Shell file path or a text device path.
|