From 09dd11ddf800898c00ecb04a65fb5cd10fb481fa Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Date: Wed, 8 May 2024 12:32:41 +0200
Subject: MHR-23: :boom: changes, reworked project tree.

Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
---
 NewKernel/Source/DriveManager.cxx | 149 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 NewKernel/Source/DriveManager.cxx

(limited to 'NewKernel/Source/DriveManager.cxx')

diff --git a/NewKernel/Source/DriveManager.cxx b/NewKernel/Source/DriveManager.cxx
new file mode 100644
index 00000000..6147cba0
--- /dev/null
+++ b/NewKernel/Source/DriveManager.cxx
@@ -0,0 +1,149 @@
+/* -------------------------------------------
+
+    Copyright Mahrouss Logic
+
+------------------------------------------- */
+
+#include <KernelKit/DebugOutput.hpp>
+#include <KernelKit/DriveManager.hxx>
+#include <Builtins/ATA/ATA.hxx>
+#include <Builtins/AHCI/AHCI.hxx>
+#include <NewKit/Utils.hpp>
+
+/// @file DriveManager.cxx
+/// @brief Kernel drive manager.
+
+namespace NewOS
+{
+	static UInt16 kATAIO	 = 0U;
+	static UInt8  kATAMaster = 0U;
+
+	/// @brief reads from an ATA drive.
+	/// @param pckt
+	/// @return
+	Void ke_drv_input(DriveTrait::DrivePacket* pckt)
+	{
+		if (!pckt)
+		{
+			return;
+		}
+
+		pckt->fPacketGood = false;
+
+#ifdef __AHCI__
+		drv_std_read(pckt->fLba, (Char*)pckt->fPacketContent, kAHCISectorSize, pckt->fPacketSize);
+#elif defined(__ATA_PIO__) || defined(__ATA_DMA__)
+		drv_std_read(pckt->fLba, kATAIO, kATAMaster, (Char*)pckt->fPacketContent, kATASectorSize, pckt->fPacketSize);
+#endif
+
+		pckt->fPacketGood = true;
+	}
+
+	/// @brief Writes to an ATA drive.
+	/// @param pckt
+	/// @return
+	Void ke_drv_output(DriveTrait::DrivePacket* pckt)
+	{
+		if (!pckt)
+		{
+			return;
+		}
+
+		pckt->fPacketGood = false;
+
+#ifdef __AHCI__
+		drv_std_write(pckt->fLba, (Char*)pckt->fPacketContent, kATASectorSize, pckt->fPacketSize);
+#elif defined(__ATA_PIO__) || defined(__ATA_DMA__)
+		drv_std_write(pckt->fLba, kATAIO, kATAMaster, (Char*)pckt->fPacketContent, kATASectorSize, pckt->fPacketSize);
+#endif
+
+		pckt->fPacketGood = true;
+	}
+
+	/// @brief Executes a disk check on the ATA drive.
+	/// @param pckt
+	/// @return
+	Void ke_drv_check_disk(DriveTrait::DrivePacket* pckt)
+	{
+		if (!pckt)
+		{
+			return;
+		}
+
+		pckt->fPacketGood = false;
+
+#if defined(__ATA_PIO__) || defined(__ATA_DMA__)
+		kATAMaster = true;
+		kATAIO	   = ATA_PRIMARY_IO;
+
+		MUST_PASS(drv_std_init(kATAIO, kATAMaster, kATAIO, kATAMaster));
+#endif // if defined(__ATA_PIO__) || defined (__ATA_DMA__)
+
+		pckt->fPacketGood = true;
+	}
+
+/// @brief Gets the drive kind (ATA, SCSI, AHCI...)
+/// @param
+/// @return
+#ifdef __ATA_PIO__
+	const Char* ke_drive_kind(Void)
+	{
+		return "ATA-PIO";
+	}
+#endif
+
+#ifdef __ATA_DMA__
+	const Char* ke_drive_kind(Void)
+	{
+		return "ATA-DMA";
+	}
+#endif
+
+#ifdef __AHCI__
+	const Char* ke_drive_kind(Void)
+	{
+		return "AHCI";
+	}
+#endif
+
+	/// @brief Unimplemented drive.
+	/// @param pckt
+	/// @return
+	Void ke_drv_unimplemented(DriveTrait::DrivePacket* pckt)
+	{
+	}
+
+	/// @brief Makes a new drive.
+	/// @return the new drive.
+	DriveTrait construct_drive() noexcept
+	{
+		DriveTrait trait;
+
+		rt_copy_memory((VoidPtr) "/Mount/Null", trait.fName, rt_string_len("/Mount/Null"));
+		trait.fKind = kInvalidDrive;
+
+		trait.fInput	 = ke_drv_unimplemented;
+		trait.fOutput	 = ke_drv_unimplemented;
+		trait.fVerify	 = ke_drv_unimplemented;
+		trait.fDriveKind = ke_drive_kind;
+
+		return trait;
+	}
+
+	/// @brief Fetches the main drive.
+	/// @return the new drive.
+	DriveTrait construct_main_drive() noexcept
+	{
+		DriveTrait trait;
+
+		rt_copy_memory((VoidPtr) "/Mount/MainDisk/", trait.fName, rt_string_len("/Mount/MainDisk/"));
+		trait.fKind = kMassStorage | kEPMDrive;
+
+		trait.fInput	 = ke_drv_input;
+		trait.fOutput	 = ke_drv_output;
+		trait.fVerify	 = ke_drv_check_disk;
+		trait.fDriveKind = ke_drive_kind;
+
+		return trait;
+	}
+} // namespace NewOS
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