IMP: :boom: Breaking changes some checks are needed to be done.

Signed-off-by: Amlal <amlalelmahrouss@icloud.com>

1 files changed, 114 insertions, 0 deletions

diff --git a/dev/Kernel/FirmwareKit/EFI/API.h b/dev/Kernel/FirmwareKit/EFI/API.h
new file mode 100644
index 00000000..096a3157
--- /dev/null
+++ b/dev/Kernel/FirmwareKit/EFI/API.h
@@ -0,0 +1,114 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024, TQ B.V, all rights reserved.
+
+------------------------------------------- */
+
+#ifndef __EFI_API__
+#define __EFI_API__
+
+#include <FirmwareKit/EFI/EFI.h>
+#include <FirmwareKit/Handover.h>
+#include <KernelKit/MSDOS.h>
+#include <KernelKit/PE.h>
+
+#define kZKASubsystem 17
+
+#ifdef __ZBAOSLDR__
+// forward decl.
+class BTextWriter;
+
+#define __BOOTKIT_NO_INCLUDE__ 1
+
+#include <BootKit/BootKit.h>
+#include <Modules/FB/FB.h>
+#endif // ifdef __ZBAOSLDR__
+
+inline EfiSystemTable*	ST = nullptr;
+inline EfiBootServices* BS = nullptr;
+
+EXTERN_C void rt_cli();
+EXTERN_C void rt_hlt();
+
+namespace EFI
+{
+	/// @brief Halt and clear interrupts.
+	/// @return
+	inline Void Stop() noexcept
+	{
+		while (1)
+		{
+			rt_hlt();
+			rt_cli();
+		}
+	}
+
+	/**
+@brief Exit EFI API to let the OS load correctly.
+Bascially frees everything we have in the EFI side.
+*/
+	inline void ExitBootServices(UInt64 MapKey, EfiHandlePtr ImageHandle) noexcept
+	{
+		if (!ST)
+			return;
+
+		ST->BootServices->ExitBootServices(ImageHandle, MapKey);
+	}
+
+	enum
+	{
+		kPartEPM,
+		kPartGPT,
+		kPartMBR,
+		kPartCnt,
+	};
+
+	inline UInt32 Platform() noexcept
+	{
+		return kPeMachineAMD64;
+	}
+
+	/***
+	 * @brief Throw an error, stop execution as well.
+	 * @param ErrorCode error code to be print.
+	 * @param Reason reason to be print.
+	 */
+	inline void ThrowError(const EfiCharType* ErrorCode,
+						   const EfiCharType* Reason) noexcept
+	{
+		ST->ConOut->OutputString(ST->ConOut, L"\r*** STOP ***\r");
+
+		ST->ConOut->OutputString(ST->ConOut, L"*** Error: ");
+		ST->ConOut->OutputString(ST->ConOut, ErrorCode);
+
+		ST->ConOut->OutputString(ST->ConOut, L", Reason: ");
+		ST->ConOut->OutputString(ST->ConOut, Reason);
+
+		ST->ConOut->OutputString(ST->ConOut, L" ***\r");
+
+		EFI::Stop();
+	}
+} // namespace EFI
+
+inline void InitEFI(EfiSystemTable* SystemTable) noexcept
+{
+	if (!SystemTable)
+		return;
+
+	ST = SystemTable;
+	BS = ST->BootServices;
+
+	ST->ConOut->ClearScreen(SystemTable->ConOut);
+	ST->ConOut->SetAttribute(SystemTable->ConOut, kEFIYellow);
+
+	ST->BootServices->SetWatchdogTimer(0, 0, 0, nullptr);
+	ST->ConOut->EnableCursor(ST->ConOut, false);
+}
+
+#ifdef __ZBAOSLDR__
+
+#include <BootKit/Platform.h>
+
+#endif // ifdef __ZBAOSLDR__
+
+#endif /* ifndef __EFI_API__ */