meta(kernel): Reworked repository's filesystem structure.

Removing useless parts of the project too.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>

6 files changed, 202 insertions, 0 deletions

diff --git a/dev/kernel/StorageKit/AHCI.h b/dev/kernel/StorageKit/AHCI.h
new file mode 100644
index 00000000..43e81ba0
--- /dev/null
+++ b/dev/kernel/StorageKit/AHCI.h
@@ -0,0 +1,60 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <KernelKit/DeviceMgr.h>
+#include <KernelKit/DriveMgr.h>
+#include <NewKit/OwnPtr.h>
+
+namespace NeOS
+{
+	class AHCIDeviceInterface NE_DEVICE<MountpointInterface*>
+	{
+	public:
+		explicit AHCIDeviceInterface(void (*out)(IDeviceObject* self, MountpointInterface* out),
+									 void (*in)(IDeviceObject* self, MountpointInterface* in),
+									 void (*cleanup)(void));
+
+		virtual ~AHCIDeviceInterface() override;
+
+	public:
+		AHCIDeviceInterface& operator=(const AHCIDeviceInterface&) = default;
+		AHCIDeviceInterface(const AHCIDeviceInterface&)			   = default;
+
+		const Char* Name() const override;
+
+		const UInt16& GetPortsImplemented()
+		{
+			return this->fPortsImplemented;
+		}
+
+		Void SetPortsImplemented(const UInt16& pi)
+		{
+			MUST_PASS(pi > 0);
+			this->fPortsImplemented = pi;
+		}
+
+		const UInt32& GetIndex()
+		{
+			return this->fDriveIndex;
+		}
+
+		Void SetIndex(const UInt32& drv)
+		{
+			MUST_PASS(MountpointInterface::kDriveIndexInvalid != drv);
+			this->fDriveIndex = drv;
+		}
+
+	private:
+		Void (*fCleanup)(Void) = {nullptr};
+		UInt16 fPortsImplemented{0U};
+		UInt32 fDriveIndex{0U};
+	};
+
+	UInt16						 sk_init_ahci_device(BOOL atapi);
+	ErrorOr<AHCIDeviceInterface> sk_acquire_ahci_device(Int32 drv_index);
+} // namespace NeOS
diff --git a/dev/kernel/StorageKit/ATA.h b/dev/kernel/StorageKit/ATA.h
new file mode 100644
index 00000000..5698fe85
--- /dev/null
+++ b/dev/kernel/StorageKit/ATA.h
@@ -0,0 +1,39 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <KernelKit/DeviceMgr.h>
+#include <KernelKit/DriveMgr.h>
+#include <NewKit/OwnPtr.h>
+#include <NewKit/Utils.h>
+
+namespace NeOS
+{
+	/// @brief ATA device interface type.
+	class ATADeviceInterface : public IDeviceObject<MountpointInterface*>
+	{
+	public:
+		explicit ATADeviceInterface(void (*Out)(IDeviceObject*, MountpointInterface* outpacket),
+									void (*In)(IDeviceObject*, MountpointInterface* inpacket),
+									void (*Cleanup)(void));
+
+		virtual ~ATADeviceInterface();
+
+	public:
+		ATADeviceInterface& operator<<(MountpointInterface* Data) override;
+		ATADeviceInterface& operator>>(MountpointInterface* Data) override;
+
+	public:
+		ATADeviceInterface& operator=(const ATADeviceInterface&) = default;
+		ATADeviceInterface(const ATADeviceInterface&)			 = default;
+
+		const Char* Name() const override;
+
+	private:
+		void (*fCleanup)(void) = {nullptr};
+	};
+} // namespace NeOS
diff --git a/dev/kernel/StorageKit/NVME.h b/dev/kernel/StorageKit/NVME.h
new file mode 100644
index 00000000..22300726
--- /dev/null
+++ b/dev/kernel/StorageKit/NVME.h
@@ -0,0 +1,34 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <KernelKit/DeviceMgr.h>
+#include <KernelKit/DriveMgr.h>
+
+namespace NeOS
+{
+	class NVMEDeviceInterface final NE_DEVICE<MountpointInterface*>
+	{
+	public:
+		explicit NVMEDeviceInterface(Void (*out)(IDeviceObject*, MountpointInterface* out_packet),
+									 Void (*in)(IDeviceObject*, MountpointInterface* in_packet),
+									 Void (*cleanup)(Void));
+
+		~NVMEDeviceInterface() override;
+
+	public:
+		NE_COPY_DEFAULT(NVMEDeviceInterface);
+
+		const Char* Name() const override;
+
+	public:
+		OwnPtr<MountpointInterface*> operator()(UInt32 dma_low, UInt32 dma_high, SizeT dma_sz);
+
+	private:
+		Void (*fCleanup)(Void) = {nullptr};
+	};
+} // namespace NeOS
diff --git a/dev/kernel/StorageKit/PRDT.h b/dev/kernel/StorageKit/PRDT.h
new file mode 100644
index 00000000..40ba11e0
--- /dev/null
+++ b/dev/kernel/StorageKit/PRDT.h
@@ -0,0 +1,36 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <KernelKit/PCI/DMA.h>
+#include <KernelKit/PCI/Iterator.h>
+#include <NewKit/Ref.h>
+
+#define kPrdtTransferSize (sizeof(NeOS::UShort))
+
+namespace NeOS
+{
+	/// @brief Tranfer information about PRD.
+	enum kPRDTTransfer
+	{
+		kPRDTTransferInProgress,
+		kPRDTTransferIsDone,
+		kPRDTTransferCount,
+	};
+
+	/// @brief Physical Region Descriptor Table.
+	struct PRDT
+	{
+		UInt32 fPhysAddress;
+		UInt32 fSectorCount;
+		UInt8  fEndBit;
+	};
+
+	void construct_prdt(Ref<PRDT>& prd);
+
+	EXTERN_C Int32 kPRDTTransferStatus;
+} // namespace NeOS
diff --git a/dev/kernel/StorageKit/SCSI.h b/dev/kernel/StorageKit/SCSI.h
new file mode 100644
index 00000000..fc526447
--- /dev/null
+++ b/dev/kernel/StorageKit/SCSI.h
@@ -0,0 +1,11 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#include <modules/SCSI/SCSI.h>
+
+extern const scsi_packet_type<12> kCDRomPacketTemplate;
diff --git a/dev/kernel/StorageKit/StorageKit.h b/dev/kernel/StorageKit/StorageKit.h
new file mode 100644
index 00000000..a0f1a2d1
--- /dev/null
+++ b/dev/kernel/StorageKit/StorageKit.h
@@ -0,0 +1,22 @@
+/* -------------------------------------------
+
+	Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved.
+
+------------------------------------------- */
+
+#pragma once
+
+#define kDriveSectorSizeHDD		(512U)
+#define kDriveSectorSizeSSD		(512U)
+#define kDriveSectorSizeOptical (2048)
+
+namespace NeOS
+{
+	template <typename T>
+	class IDeviceObject;
+
+	class NVMEDeviceInterface;
+	class AHCIDeviceInterface;
+	class ATADeviceInterface;
+	class SCSIDeviceInterface;
+} // namespace NeOS