mirror of
https://github.com/akuker/RASCSI.git
synced 2024-11-26 13:49:21 +00:00
106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
//---------------------------------------------------------------------------
|
||
//
|
||
// SCSI Target Emulator PiSCSI
|
||
// for Raspberry Pi
|
||
//
|
||
// Copyright (C) 2001-2006 ＰＩ．(ytanaka@ipc-tokai.or.jp)
|
||
// Copyright (C) 2014-2020 GIMONS
|
||
// Copyright (C) 2022 Uwe Seimet
|
||
// Copyright (C) akuker
|
||
//
|
||
// Licensed under the BSD 3-Clause License.
|
||
// See LICENSE file in the project root folder.
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
|
||
#include "shared/piscsi_exceptions.h"
|
||
#include "scsihd.h"
|
||
#include "scsi_command_util.h"
|
||
|
||
using namespace scsi_command_util;
|
||
|
||
SCSIHD::SCSIHD(int lun, const unordered_set<uint32_t>& sector_sizes, bool removable, scsi_defs::scsi_level level)
|
||
: Disk(removable ? SCRM : SCHD, lun), scsi_level(level)
|
||
{
|
||
SetSectorSizes(sector_sizes);
|
||
|
||
SetProtectable(true);
|
||
SetRemovable(removable);
|
||
SetLockable(removable);
|
||
|
||
SupportsSaveParameters(true);
|
||
}
|
||
|
||
string SCSIHD::GetProductData() const
|
||
{
|
||
uint64_t capacity = GetBlockCount() * GetSectorSizeInBytes();
|
||
string unit;
|
||
|
||
// 10,000 MiB and more
|
||
if (capacity >= 10'485'760'000) {
|
||
capacity /= 1'073'741'824;
|
||
unit = "GiB";
|
||
}
|
||
// 1 MiB and more
|
||
else if (capacity >= 1'048'576) {
|
||
capacity /= 1'048'576;
|
||
unit = "MiB";
|
||
}
|
||
else {
|
||
capacity /= 1024;
|
||
unit = "KiB";
|
||
}
|
||
|
||
return DEFAULT_PRODUCT + " " + to_string(capacity) + " " + unit;
|
||
}
|
||
|
||
void SCSIHD::FinalizeSetup(off_t image_offset)
|
||
{
|
||
Disk::ValidateFile();
|
||
|
||
// For non-removable media drives set the default product name based on the drive capacity
|
||
if (!IsRemovable()) {
|
||
SetProduct(GetProductData(), false);
|
||
}
|
||
|
||
SetUpCache(image_offset);
|
||
}
|
||
|
||
void SCSIHD::Open()
|
||
{
|
||
assert(!IsReady());
|
||
|
||
off_t size = GetFileSize();
|
||
|
||
// Sector size (default 512 bytes) and number of blocks
|
||
SetSectorSizeInBytes(GetConfiguredSectorSize() ? GetConfiguredSectorSize() : 512);
|
||
SetBlockCount(static_cast<uint32_t>(size >> GetSectorSizeShiftCount()));
|
||
|
||
FinalizeSetup(0);
|
||
}
|
||
|
||
vector<uint8_t> SCSIHD::InquiryInternal() const
|
||
{
|
||
return HandleInquiry(device_type::DIRECT_ACCESS, scsi_level, IsRemovable());
|
||
}
|
||
|
||
void SCSIHD::ModeSelect(scsi_command cmd, const vector<int>& cdb, const vector<uint8_t>& buf, int length) const
|
||
{
|
||
scsi_command_util::ModeSelect(GetLogger(), cmd, cdb, buf, length, 1 << GetSectorSizeShiftCount());
|
||
}
|
||
|
||
void SCSIHD::AddFormatPage(map<int, vector<byte>>& pages, bool changeable) const
|
||
{
|
||
Disk::AddFormatPage(pages, changeable);
|
||
|
||
EnrichFormatPage(pages, changeable, 1 << GetSectorSizeShiftCount());
|
||
}
|
||
|
||
void SCSIHD::AddVendorPage(map<int, vector<byte>>& pages, int page, bool changeable) const
|
||
{
|
||
// Page code 48
|
||
if (page == 0x30 || page == 0x3f) {
|
||
AddAppleVendorModePage(pages, changeable);
|
||
}
|
||
}
|