1 files changed, 129 insertions, 0 deletions
diff --git a/dev/Kernel/KernelKit/DeviceManager.hxx b/dev/Kernel/KernelKit/DeviceManager.hxx
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+++ b/dev/Kernel/KernelKit/DeviceManager.hxx
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+/* -------------------------------------------
+
+	Copyright ZKA Technologies.
+
+------------------------------------------- */
+
+/* -------------------------------------------
+
+ Revision History:
+
+	 31/01/24: Add kDeviceCnt (amlel)
+
+ ------------------------------------------- */
+
+#pragma once
+
+/* Kernel device interface manager. */
+/* @file KernelKit/DeviceManager.hpp */
+/* @brief Device abstraction and I/O buffer. */
+
+#include <NewKit/ErrorOr.hxx>
+#include <NewKit/Ref.hxx>
+
+// Last Rev
+// Wed, Apr  3, 2024  9:09:41 AM
+
+namespace Kernel
+{
+	template <typename T>
+	class DeviceInterface;
+
+	template <typename T>
+	class DeviceInterface
+	{
+	public:
+		explicit DeviceInterface(void (*Out)(T), void (*In)(T))
+			: fOut(Out), fIn(In)
+		{
+		}
+
+		virtual ~DeviceInterface() = default;
+
+	public:
+		DeviceInterface& operator=(const DeviceInterface<T>&) = default;
+		DeviceInterface(const DeviceInterface<T>&)			  = default;
+
+	public:
+		virtual DeviceInterface<T>& operator<<(T Data)
+		{
+			fOut(Data);
+			return *this;
+		}
+
+		virtual DeviceInterface<T>& operator>>(T Data)
+		{
+			fIn(Data);
+			return *this;
+		}
+
+		virtual const char* Name() const
+		{
+			return "DeviceInterface";
+		}
+
+		operator bool()
+		{
+			return fOut && fIn;
+		}
+		bool operator!()
+		{
+			return !fOut || !fIn;
+		}
+
+	private:
+		void (*fOut)(T Data) = {nullptr};
+		void (*fIn)(T Data) = {nullptr};
+	};
+
+	///
+	/// @brief Input Output Buffer
+	/// Used mainly to communicate between hardware.
+	///
+	template <typename T>
+	class IOBuf final
+	{
+	public:
+		explicit IOBuf(T Dat)
+			: fData(Dat)
+		{
+			// at least pass something valid when instancating this struct.
+			MUST_PASS(Dat);
+		}
+
+		IOBuf& operator=(const IOBuf<T>&) = default;
+		IOBuf(const IOBuf<T>&)			  = default;
+
+		~IOBuf() = default;
+
+	public:
+		template <typename R>
+		R operator->() const
+		{
+			return fData;
+		}
+
+		template <typename R>
+		R& operator[](Size index) const
+		{
+			return fData[index];
+		}
+
+	private:
+		T fData;
+	};
+
+	///! @brief Device enum types.
+	enum
+	{
+		kDeviceTypeIDE,
+		kDeviceTypeEthernet,
+		kDeviceTypeWiFi,
+		kDeviceTypeRS232,
+		kDeviceTypeSCSI,
+		kDeviceTypeSHCI,
+		kDeviceTypeUSB,
+		kDeviceTypeMedia,
+		kDeviceTypeCount,
+	};
+} // namespace Kernel