New files to support legacy BIOS boots on UEFI-based PCs

[refind] / EfiLib / BdsHelper.h

diff --git a/EfiLib/BdsHelper.h b/EfiLib/BdsHelper.h
new file mode 100644 (file)
index 0000000..6739b85
--- /dev/null
+++ b/EfiLib/BdsHelper.h
@@ -0,0 +1,37 @@
+/*
+ * EfiLib/BdsHelper.c
+ * Functions to call legacy BIOS API.
+ *
+ */
+
+#include "../include/tiano_includes.h"
+
+#ifndef _BDS_HELPER_H_
+#define _BDS_HELPER_H_
+
+//TODO: may want to make this configurable via config file
+static UINT16 SupportedLegacyDevices[] = {BBS_HARDDISK, BBS_CDROM, BBS_USB};
+
+
+/**
+  True if the DeviceType is supported by rEFInd, false otherwise.
+*/
+BOOLEAN IsBbsDeviceTypeSupported(UINT16 DeviceType);
+
+
+/**
+  Boot the legacy system with the boot option
+
+  @param  Option                 The legacy boot option which have BBS device path
+
+  @retval EFI_UNSUPPORTED        There is no legacybios protocol, do not support
+                                 legacy boot.
+  @retval EFI_STATUS             Return the status of LegacyBios->LegacyBoot ().
+
+**/
+EFI_STATUS
+BdsLibDoLegacyBoot (
+  IN  BDS_COMMON_OPTION           *Option
+  );
+
+#endif //_BDS_HELPER_H_