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/*
* 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/ATA/ATAController.h>
#include <Kernel/Storage/StorageDevice.h>
namespace Kernel {
class ATADevice : public StorageDevice {
public:
// Note: For IDE drives, port means Primary or Secondary (0 or 1),
// and subport means Master or Slave (0 or 1).
// For SATA drives (AHCI driven HBAs), a port can be a number from 0 to 31,
// and subport can be a number from 0 to 14 (only 15 devices are allowed to
// be connected to one SATA port multiplier).
struct Address {
// FIXME: u32 for this value is wasteful, because even AHCI only support 32 ports
u32 port;
u8 subport;
};
public:
virtual ~ATADevice() override;
// ^BlockDevice
virtual void start_request(AsyncBlockDeviceRequest&) override;
u16 ata_capabilites() const { return m_capabilities; }
const Address& ata_address() const { return m_ata_address; }
protected:
ATADevice(const ATAController&, Address, MinorNumber, u16, u16, u64, NonnullOwnPtr<KString>);
WeakPtr<ATAController> m_controller;
const Address m_ata_address;
const u16 m_capabilities;
};
}
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