From f3d931aa7cfaf96baef8383b59a8938779541ee7 Mon Sep 17 00:00:00 2001
From: Amlal EL Mahrouss <amlalelmahrouss@icloud.com>
Date: Thu, 15 Aug 2024 18:35:34 +0200
Subject: [IMP] Moved source code into dev/ folder.

Signed-off-by: Amlal EL Mahrouss <amlalelmahrouss@icloud.com>
---
 dev/Kernel/FirmwareKit/EFI/API.hxx | 116 +++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 dev/Kernel/FirmwareKit/EFI/API.hxx

(limited to 'dev/Kernel/FirmwareKit/EFI/API.hxx')

diff --git a/dev/Kernel/FirmwareKit/EFI/API.hxx b/dev/Kernel/FirmwareKit/EFI/API.hxx
new file mode 100644
index 00000000..d666bbf2
--- /dev/null
+++ b/dev/Kernel/FirmwareKit/EFI/API.hxx
@@ -0,0 +1,116 @@
+/* -------------------------------------------
+
+	Copyright ZKA Technologies.
+
+------------------------------------------- */
+
+#ifndef __EFI_API__
+#define __EFI_API__
+
+#include <FirmwareKit/EFI/EFI.hxx>
+#include <FirmwareKit/Handover.hxx>
+#include <KernelKit/MSDOS.hxx>
+#include <KernelKit/PE.hxx>
+
+#define kNewOSSubsystem 17
+
+#ifdef __NEWOSLDR__
+// forward decl.
+class BTextWriter;
+
+#define __BOOTKIT_NO_INCLUDE__ 1
+
+#include <BootKit/BootKit.hxx>
+#include <BootKit/Rsrc/NewBootFatal.rsrc>
+#include <BootKit/Vendor/Qr.hxx>
+#include <Modules/CoreCG/FbRenderer.hxx>
+#endif // ifdef __NEWOSLDR__
+
+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 __NEWOSLDR__
+
+#include <BootKit/Platform.hxx>
+
+#endif // ifdef __NEWOSLDR__
+
+#endif /* ifndef __EFI_API__ */
-- 
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