mirror of
https://github.com/akuker/RASCSI.git
synced 2024-11-25 20:33:35 +00:00
117 lines
3.0 KiB
C++
117 lines
3.0 KiB
C++
//---------------------------------------------------------------------------
|
|
//
|
|
// SCSI Target Emulator PiSCSI
|
|
// for Raspberry Pi
|
|
//
|
|
// Copyright (C) 2022-2023 Uwe Seimet
|
|
//
|
|
// A device implementing mandatory SCSI primary commands, to be used for subclassing
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
|
|
#pragma once
|
|
|
|
#include "shared/scsi.h"
|
|
#include "interfaces/scsi_primary_commands.h"
|
|
#include "controllers/abstract_controller.h"
|
|
#include "device.h"
|
|
#include "device_logger.h"
|
|
#include <string>
|
|
#include <unordered_map>
|
|
#include <span>
|
|
#include <functional>
|
|
|
|
using namespace std;
|
|
using namespace scsi_defs;
|
|
|
|
class PrimaryDevice: private ScsiPrimaryCommands, public Device
|
|
{
|
|
friend class AbstractController;
|
|
|
|
using operation = function<void()>;
|
|
|
|
public:
|
|
|
|
PrimaryDevice(PbDeviceType type, int lun) : Device(type, lun) {}
|
|
~PrimaryDevice() override = default;
|
|
|
|
virtual bool Init(const param_map&);
|
|
virtual void CleanUp() {
|
|
// Override if cleanup work is required for a derived device
|
|
};
|
|
|
|
virtual void Dispatch(scsi_command);
|
|
|
|
int GetId() const override;
|
|
|
|
virtual bool WriteByteSequence(span<const uint8_t>);
|
|
|
|
int GetSendDelay() const { return send_delay; }
|
|
|
|
bool CheckReservation(int, scsi_command, bool) const;
|
|
void DiscardReservation();
|
|
|
|
void Reset() override;
|
|
|
|
virtual void FlushCache() {
|
|
// Devices with a cache have to override this method
|
|
}
|
|
|
|
virtual vector<PbStatistics> GetStatistics() const {
|
|
// Devices which provide statistics have to override this method
|
|
|
|
return vector<PbStatistics>();
|
|
}
|
|
|
|
protected:
|
|
|
|
void AddCommand(scsi_command, const operation&);
|
|
|
|
vector<uint8_t> HandleInquiry(scsi_defs::device_type, scsi_level, bool) const;
|
|
virtual vector<uint8_t> InquiryInternal() const = 0;
|
|
void CheckReady();
|
|
|
|
void SetSendDelay(int s) { send_delay = s; }
|
|
|
|
void SendDiagnostic() override;
|
|
void ReserveUnit() override;
|
|
void ReleaseUnit() override;
|
|
|
|
void EnterStatusPhase() const { controller->Status(); }
|
|
void EnterDataInPhase() const { controller->DataIn(); }
|
|
void EnterDataOutPhase() const { controller->DataOut(); }
|
|
|
|
auto GetController() const { return controller; }
|
|
|
|
void LogTrace(const string& s) const { device_logger.Trace(s); }
|
|
void LogDebug(const string& s) const { device_logger.Debug(s); }
|
|
void LogInfo(const string& s) const { device_logger.Info(s); }
|
|
void LogWarn(const string& s) const { device_logger.Warn(s); }
|
|
void LogError(const string& s) const { device_logger.Error(s); }
|
|
|
|
private:
|
|
|
|
static const int NOT_RESERVED = -2;
|
|
|
|
void SetController(AbstractController *);
|
|
|
|
void TestUnitReady() override;
|
|
void RequestSense() override;
|
|
void ReportLuns() override;
|
|
void Inquiry() override;
|
|
|
|
vector<byte> HandleRequestSense() const;
|
|
|
|
// TODO Try to remove this field and use controller->Log*() methods instead
|
|
DeviceLogger device_logger;
|
|
|
|
// Owned by the controller manager
|
|
AbstractController *controller = nullptr;
|
|
|
|
unordered_map<scsi_command, operation> commands;
|
|
|
|
int send_delay = BUS::SEND_NO_DELAY;
|
|
|
|
int reserving_initiator = NOT_RESERVED;
|
|
};
|