Merged in MHR-23 (pull request #12)

MHR-23: Merge work.

1 files changed, 146 insertions, 0 deletions

diff --git a/Kernel/KernelKit/DriveManager.hxx b/Kernel/KernelKit/DriveManager.hxx
new file mode 100644
index 00000000..ad77958e
--- /dev/null
+++ b/Kernel/KernelKit/DriveManager.hxx
@@ -0,0 +1,146 @@
+/* -------------------------------------------
+
+    Copyright SoftwareLabs
+
+------------------------------------------- */
+
+#ifndef __DRIVE_MANAGER__
+#define __DRIVE_MANAGER__
+
+#include <CompilerKit/CompilerKit.hxx>
+#include <KernelKit/DebugOutput.hpp>
+#include <KernelKit/DeviceManager.hpp>
+#include <KernelKit/HError.hpp>
+#include <NewKit/Defines.hpp>
+#include <NewKit/String.hpp>
+
+#define kDriveInvalidID -1
+#define kDriveNameLen	32
+
+namespace NewOS
+{
+	enum
+	{
+		kInvalidDrive = -1,
+		kBlockDevice  = 0xAD,
+		kMassStorage  = 0xDA,
+		kFloppyDisc	  = 0xCD,
+		kOpticalDisc  = 0xDC, // CD-ROM/DVD-ROM/Blu-Ray
+		/// combine with below.
+		kReadOnly = 0x10, // Read only drive
+		kEPMDrive = 0x11, // Explicit Partition Map.
+		kEPTDrive = 0x12, // ESP w/ EPM partition.
+		kMBRDrive = 0x13, // IBM PC classic partition scheme
+		kDriveCnt = 9,
+	};
+
+	typedef Int64 rt_drive_id_type;
+
+	/// @brief Media drive trait type.
+	struct DriveTrait final
+	{
+		Char			 fName[kDriveNameLen]; // /System, /Boot, //./Devices/USB...
+		Int32			 fKind;				   // fMassStorage, fFloppy, fOpticalDisc.
+		rt_drive_id_type fId;				   // Drive id.
+		Int32			 fFlags;			   // fReadOnly, fXPMDrive, fXPTDrive
+
+		/// @brief Packet drive (StorageKit compilant.)
+		struct DrivePacket final
+		{
+			VoidPtr fPacketContent;				//! packet body.
+			Char	fPacketMime[kDriveNameLen]; //! identify what we're sending.
+			SizeT	fPacketSize;				//! packet size
+			UInt32	fPacketCRC32;				//! sanity crc, in case if good is set to false
+			Boolean fPacketGood;
+			Lba		fLba;
+		} fPacket;
+
+		Void (*fInput)(DrivePacket* packetPtr);
+		Void (*fOutput)(DrivePacket* packetPtr);
+		Void (*fVerify)(DrivePacket* packetPtr);
+		const Char* (*fDriveKind)(Void);
+	};
+
+	///! drive as a device.
+	typedef DriveTrait* DriveTraitPtr;
+
+	/**
+ * @brief Mounted drives interface.
+ * @note This class has all of it's drive set to nullptr, allocate them using
+ * GetAddressOf(index).
+ */
+	class MountpointInterface final
+	{
+	public:
+		explicit MountpointInterface() = default;
+		~MountpointInterface()		   = default;
+
+		NEWOS_COPY_DEFAULT(MountpointInterface);
+
+	public:
+		DriveTrait& A()
+		{
+			return mA;
+		}
+		DriveTrait& B()
+		{
+			return mB;
+		}
+		DriveTrait& C()
+		{
+			return mC;
+		}
+		DriveTrait& D()
+		{
+			return mD;
+		}
+
+		DriveTraitPtr GetAddressOf(Int32 index)
+		{
+			DbgLastError() = kErrorSuccess;
+
+			switch (index)
+			{
+			case 0:
+				return &mA;
+			case 1:
+				return &mB;
+			case 2:
+				return &mC;
+			case 3:
+				return &mD;
+			default: {
+				DbgLastError() = kErrorNoSuchDisk;
+				kcout << "New OS: No such disk.\n";
+
+				break;
+			}
+			}
+
+			return nullptr;
+		}
+
+	private:
+		DriveTrait mA, mB, mC, mD;
+	};
+
+	/// @brief Unimplemented drive.
+	/// @param pckt
+	/// @return
+	Void ke_drv_unimplemented(DriveTrait::DrivePacket* pckt);
+
+	/// @brief Gets the drive kind (ATA, SCSI, AHCI...)
+	/// @param
+	/// @return
+	const Char* ke_drive_kind(Void);
+
+	/// @brief Makes a new drive.
+	/// @return the new drive.
+	DriveTrait construct_drive(void) noexcept;
+
+	/// @brief Fetches the main drive.
+	/// @return the new drive.
+	DriveTrait construct_main_drive(void) noexcept;
+} // namespace NewOS
+
+#endif /* ifndef __DRIVE_MANAGER__ */