Kernel/Storage: Unify all ATA devices

There's basically no real difference in software between a SATA harddisk
and IDE harddisk. The difference in the implementation is for the host
bus adapter protocol and registers layout.
Therefore, there's no point in putting a distinction in software to
these devices.

This change also greatly simplifies and removes stale APIs and removes
unnecessary parameters in constructor calls, which tighten things
further everywhere.

Kernel/Storage/ATAPIDiscDevice.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2021, Liav A. <liavalb@hotmail.co.il>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <Kernel/Interrupts/IRQHandler.h>
+#include <Kernel/Locking/Mutex.h>
+#include <Kernel/Storage/ATADevice.h>
+
+namespace Kernel {
+
+class IDEController;
+class IDEChannel;
+class ATAPIDiscDevice final : public ATADevice {
+    friend class IDEController;
+    friend class DeviceManagement;
+
+public:
+    static NonnullRefPtr<ATAPIDiscDevice> create(const ATAController&, ATADevice::Address, u16 capabilities, u64 max_addressable_block);
+    virtual ~ATAPIDiscDevice() override;
+
+    // ^StorageDevice
+    virtual CommandSet command_set() const override { return CommandSet::SCSI; }
+
+private:
+    ATAPIDiscDevice(const ATAController&, Address, unsigned, u16, u64, NonnullOwnPtr<KString>);
+
+    // ^DiskDevice
+    virtual StringView class_name() const override;
+};
+
+}