Update filesystem structure

Modules/ATA/AdvancedTechnologyAttachment.cpp

@@ -0,0 +1,91 @@
+#include "ata.hpp"
+
+#include <debug.h>
+#include <pci.hpp>
+#include <io.h>
+
+#include "../../DAPI.hpp"
+#include "../drv.hpp"
+
+namespace AdvancedTechnologyAttachment
+{
+	KernelAPI KAPI;
+
+	bool IsATAPresent()
+	{
+		outb(0x1F0 + 2, 0);
+		outb(0x1F0 + 3, 0);
+		outb(0x1F0 + 4, 0);
+		outb(0x1F0 + 5, 0);
+		outb(0x1F0 + 7, 0xEC);
+		if (inb(0x1F0 + 7) == 0 || inb(0x1F0 + 1) != 0)
+			return false;
+		return true;
+	}
+
+	int DriverEntry(void *Data)
+	{
+		if (!Data)
+			return INVALID_KERNEL_API;
+		KAPI = *(KernelAPI *)Data;
+		if (KAPI.Version.Major < 0 || KAPI.Version.Minor < 0 || KAPI.Version.Patch < 0)
+			return KERNEL_API_VERSION_NOT_SUPPORTED;
+
+		if (!IsATAPresent())
+			return NOT_AVAILABLE;
+		trace("ATA device found.");
+
+		return NOT_IMPLEMENTED;
+	}
+
+	int CallbackHandler(KernelCallback *Data)
+	{
+		switch (Data->Reason)
+		{
+		case AcknowledgeReason:
+		{
+			debug("Kernel acknowledged the driver.");
+			break;
+		}
+		case ConfigurationReason:
+		{
+			debug("Driver received configuration data.");
+			break;
+		}
+		case FetchReason:
+		{
+			break;
+		}
+		case SendReason:
+		case ReceiveReason:
+		{
+			break;
+		}
+		case StopReason:
+		{
+			// TODO: Stop the driver.
+			debug("Driver stopped.");
+			break;
+		}
+		default:
+		{
+			warn("Unknown reason.");
+			break;
+		}
+		}
+		return OK;
+	}
+
+	int InterruptCallback(CPURegisters *Registers)
+	{
+		if (Registers->InterruptNumber == 0xE)
+		{
+			fixme("IRQ14");
+		}
+		else if (Registers->InterruptNumber == 0xF)
+		{
+			fixme("IRQ15");
+		}
+		return OK;
+	}
+}