From af8a516fc22865abd80d6e26f1541fa3d6bebfdc Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Date: Thu, 9 May 2024 00:42:44 +0200
Subject: MHR-23: :boom:, refactors.

- Move NewBoot to /Boot, thus making Kernel directory only containing the kernel.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
---
 Kernel/FirmwareKit/EFI/API.hxx | 145 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 Kernel/FirmwareKit/EFI/API.hxx

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

diff --git a/Kernel/FirmwareKit/EFI/API.hxx b/Kernel/FirmwareKit/EFI/API.hxx
new file mode 100644
index 00000000..37781f23
--- /dev/null
+++ b/Kernel/FirmwareKit/EFI/API.hxx
@@ -0,0 +1,145 @@
+/* -------------------------------------------
+
+    Copyright SoftwareLabs
+
+------------------------------------------- */
+
+#ifndef __EFI_API__
+#define __EFI_API__
+
+#include <FirmwareKit/EFI/EFI.hxx>
+#include <FirmwareKit/Handover.hxx>
+#include <KernelKit/MSDOS.hpp>
+#include <KernelKit/PE.hxx>
+
+#ifdef __NEWBOOT__
+// forward decl.
+class BTextWriter;
+
+#define __BOOTKIT_NO_INCLUDE__ 1
+
+#include <BootKit/BootKit.hxx>
+#include <BootKit/Rsrc/NewBootFatal.rsrc>
+#include <BootKit/Vendor/Qr.hxx>
+#include <Builtins/Toolbox/Toolbox.hxx>
+#endif // ifdef __NEWBOOT__
+
+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
+	{
+#ifdef __DEBUG__
+		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");
+#endif // ifdef __DEBUG__
+
+#ifdef __NEWBOOT__
+		ToolboxInitRsrc();
+
+		ToolboxDrawRsrc(NewBootFatal, NEWBOOTFATAL_HEIGHT, NEWBOOTFATAL_WIDTH,
+						(kHandoverHeader->f_GOP.f_Width - NEWBOOTFATAL_WIDTH) / 2,
+						(kHandoverHeader->f_GOP.f_Height - NEWBOOTFATAL_HEIGHT) / 2);
+
+		ToolboxClearRsrc();
+
+		/// Show the QR code now.
+
+		constexpr auto ver = 4;
+		auto		   ecc = qr::Ecc::H;
+		auto		   str = "https://el-mahrouss-logic.com/";
+		auto		   len = StrLen("https://el-mahrouss-logic.com/");
+
+		qr::Qr<ver>	   encoder;
+		qr::QrDelegate encoderDelegate;
+
+		encoder.encode(str, len, ecc, 0); // Manual mask 0
+
+		/// tell delegate to draw encoded QR.
+		encoderDelegate.draw<ver>(encoder, (kHandoverHeader->f_GOP.f_Width - encoder.side_size()) - 20,
+								  (kHandoverHeader->f_GOP.f_Height - encoder.side_size()) / 2);
+
+#endif // ifdef __NEWBOOT__
+
+		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 __BOOTLOADER__
+
+#include <BootKit/Platform.hxx>
+
+#endif // ifdef __BOOTLOADER__
+
+#define kNewOSSubsystem 17
+
+#endif /* ifndef __EFI_API__ */
-- 
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