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-rw-r--r--lib/console_control.c32
1 files changed, 32 insertions, 0 deletions
diff --git a/lib/console_control.c b/lib/console_control.c
new file mode 100644
index 00000000..604a60f5
--- /dev/null
+++ b/lib/console_control.c
@@ -0,0 +1,32 @@
+#include <efi.h>
+#include <efilib.h>
+
+#include "console_control.h"
+
+VOID setup_console (int text)
+{
+ EFI_STATUS status;
+ EFI_GUID console_control_guid = EFI_CONSOLE_CONTROL_PROTOCOL_GUID;
+ EFI_CONSOLE_CONTROL_PROTOCOL *concon;
+ static EFI_CONSOLE_CONTROL_SCREEN_MODE mode =
+ EfiConsoleControlScreenGraphics;
+ EFI_CONSOLE_CONTROL_SCREEN_MODE new_mode;
+
+ status = LibLocateProtocol(&console_control_guid, (VOID **)&concon);
+ if (status != EFI_SUCCESS)
+ return;
+
+ if (text) {
+ new_mode = EfiConsoleControlScreenText;
+
+ status = uefi_call_wrapper(concon->GetMode, 4, concon, &mode,
+ 0, 0);
+ /* If that didn't work, assume it's graphics */
+ if (status != EFI_SUCCESS)
+ mode = EfiConsoleControlScreenGraphics;
+ } else {
+ new_mode = mode;
+ }
+
+ uefi_call_wrapper(concon->SetMode, 2, concon, new_mode);
+}