mirror of
https://github.com/akuker/RASCSI.git
synced 2024-12-23 06:30:04 +00:00
b7f65d33e2
* Make ModeSelect() non-const Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Implement ModeSelect for scsicd and honor sector size setting. DEC's VMS can't handle 2k sector sizes and uses ModeSelect6 to set the sector size to 512 bytes. Fixes #1397 Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Test sector size setting via ModeSelect in SCSICD Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Re-calculate total blocks when sector size changes Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Reset CD data tracks after sector size change The track calculation is based on sector size and must be reset after change of sector size. Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * resize cache after change of sector size The disk cache is based on sector size and must be resized when the sector size changes. Disk::ResizeCache needs a `raw` parameter, make this value accessible from the current cache. Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> * Make GetRawMode const Signed-off-by: Klaus Kämpf <kkaempf@gmail.com> --------- Signed-off-by: Klaus Kämpf <kkaempf@gmail.com>
129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
//---------------------------------------------------------------------------
|
||
//
|
||
// X68000 EMULATOR "XM6"
|
||
//
|
||
// Copyright (C) 2001-2006 ＰＩ．(ytanaka@ipc-tokai.or.jp)
|
||
// Copyright (C) 2014-2020 GIMONS
|
||
//
|
||
// XM6i
|
||
// Copyright (C) 2010-2015 isaki@NetBSD.org
|
||
//
|
||
// Comments translated to english by akuker.
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
|
||
#pragma once
|
||
|
||
#include "shared/scsi.h"
|
||
#include "shared/piscsi_util.h"
|
||
#include "disk_track.h"
|
||
#include "disk_cache.h"
|
||
#include "interfaces/scsi_block_commands.h"
|
||
#include "storage_device.h"
|
||
#include <string>
|
||
#include <span>
|
||
#include <unordered_set>
|
||
#include <unordered_map>
|
||
#include <tuple>
|
||
|
||
using namespace std;
|
||
|
||
class Disk : public StorageDevice, private ScsiBlockCommands
|
||
{
|
||
enum access_mode { RW6, RW10, RW16, SEEK6, SEEK10 };
|
||
|
||
unique_ptr<DiskCache> cache;
|
||
|
||
unordered_set<uint32_t> supported_sector_sizes;
|
||
uint32_t configured_sector_size = 0;
|
||
|
||
// Sector size shift count (9=512, 10=1024, 11=2048, 12=4096)
|
||
uint32_t size_shift_count = 0;
|
||
|
||
uint64_t sector_read_count = 0;
|
||
uint64_t sector_write_count = 0;
|
||
|
||
inline static const string SECTOR_READ_COUNT = "sector_read_count";
|
||
inline static const string SECTOR_WRITE_COUNT = "sector_write_count";
|
||
|
||
public:
|
||
|
||
Disk(PbDeviceType type, int lun, const unordered_set<uint32_t>& s)
|
||
: StorageDevice(type, lun), supported_sector_sizes(s) {}
|
||
~Disk() override = default;
|
||
|
||
bool Init(const param_map&) override;
|
||
void CleanUp() override;
|
||
|
||
void Dispatch(scsi_command) override;
|
||
|
||
bool Eject(bool) override;
|
||
|
||
virtual void Write(span<const uint8_t>, uint64_t);
|
||
|
||
virtual int Read(span<uint8_t> , uint64_t);
|
||
|
||
uint32_t GetSectorSizeInBytes() const;
|
||
bool IsSectorSizeConfigurable() const { return supported_sector_sizes.size() > 1; }
|
||
const auto& GetSupportedSectorSizes() const { return supported_sector_sizes; }
|
||
bool SetConfiguredSectorSize(uint32_t);
|
||
void FlushCache() override;
|
||
|
||
vector<PbStatistics> GetStatistics() const override;
|
||
|
||
private:
|
||
|
||
// Commands covered by the SCSI specifications (see https://www.t10.org/drafts.htm)
|
||
void StartStopUnit();
|
||
void PreventAllowMediumRemoval();
|
||
void SynchronizeCache();
|
||
void ReadDefectData10() const;
|
||
virtual void Read6() { Read(RW6); }
|
||
void Read10() override { Read(RW10); }
|
||
void Read16() override { Read(RW16); }
|
||
virtual void Write6() { Write(RW6); }
|
||
void Write10() override { Write(RW10); }
|
||
void Write16() override { Write(RW16); }
|
||
void Verify10() { Verify(RW10); }
|
||
void Verify16() { Verify(RW16); }
|
||
void Seek();
|
||
void Seek10();
|
||
void ReadCapacity10() override;
|
||
void ReadCapacity16() override;
|
||
void FormatUnit() override;
|
||
void Seek6();
|
||
void Read(access_mode);
|
||
void Write(access_mode) const;
|
||
void Verify(access_mode);
|
||
void ReadWriteLong10() const;
|
||
void ReadWriteLong16() const;
|
||
void ReadCapacity16_ReadLong16();
|
||
|
||
void ValidateBlockAddress(access_mode) const;
|
||
tuple<bool, uint64_t, uint32_t> CheckAndGetStartAndCount(access_mode) const;
|
||
|
||
int ModeSense6(cdb_t, vector<uint8_t>&) const override;
|
||
int ModeSense10(cdb_t, vector<uint8_t>&) const override;
|
||
|
||
static inline const unordered_map<uint32_t, uint32_t> shift_counts =
|
||
{ { 512, 9 }, { 1024, 10 }, { 2048, 11 }, { 4096, 12 } };
|
||
|
||
protected:
|
||
|
||
void SetUpCache(off_t, bool = false);
|
||
void ResizeCache(const string&, bool);
|
||
bool GetRawMode() const { return (cache?cache->GetRawMode():false); }
|
||
void SetUpModePages(map<int, vector<byte>>&, int, bool) const override;
|
||
void AddErrorPage(map<int, vector<byte>>&, bool) const;
|
||
virtual void AddFormatPage(map<int, vector<byte>>&, bool) const;
|
||
virtual void AddDrivePage(map<int, vector<byte>>&, bool) const;
|
||
void AddCachePage(map<int, vector<byte>>&, bool) const;
|
||
|
||
unordered_set<uint32_t> GetSectorSizes() const;
|
||
void SetSectorSizeInBytes(uint32_t);
|
||
uint32_t GetSectorSizeShiftCount() const { return size_shift_count; }
|
||
void SetSectorSizeShiftCount(uint32_t count) { size_shift_count = count; }
|
||
uint32_t GetConfiguredSectorSize() const;
|
||
static uint32_t CalculateShiftCount(uint32_t);
|
||
};
|