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https://github.com/akuker/RASCSI.git
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106 lines
2.6 KiB
C++
106 lines
2.6 KiB
C++
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//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator PiSCSI
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// for Raspberry Pi
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//
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// Copyright (C) 2001-2006 ＰＩ．(ytanaka@ipc-tokai.or.jp)
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// Copyright (C) 2014-2020 GIMONS
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// Copyright (C) 2022 Uwe Seimet
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// Copyright (C) akuker
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//
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// Licensed under the BSD 3-Clause License.
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// See LICENSE file in the project root folder.
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//
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//---------------------------------------------------------------------------
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#include "shared/piscsi_exceptions.h"
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#include "scsihd.h"
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#include "scsi_command_util.h"
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using namespace scsi_command_util;
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SCSIHD::SCSIHD(int lun, const unordered_set<uint32_t>& sector_sizes, bool removable, scsi_defs::scsi_level level)
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: Disk(removable ? SCRM : SCHD, lun), scsi_level(level)
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{
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SetSectorSizes(sector_sizes);
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SetProtectable(true);
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SetRemovable(removable);
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SetLockable(removable);
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SupportsSaveParameters(true);
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}
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string SCSIHD::GetProductData() const
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{
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uint64_t capacity = GetBlockCount() * GetSectorSizeInBytes();
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string unit;
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// 10 GiB and more
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if (capacity >= 1'099'511'627'776) {
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capacity /= 1'099'511'627'776;
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unit = "GiB";
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}
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// 1 MiB and more
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else if (capacity >= 1'048'576) {
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capacity /= 1'048'576;
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unit = "MiB";
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}
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else {
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capacity /= 1024;
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unit = "KiB";
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}
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return DEFAULT_PRODUCT + " " + to_string(capacity) + " " + unit;
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}
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void SCSIHD::FinalizeSetup(off_t image_offset)
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{
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Disk::ValidateFile();
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// For non-removable media drives set the default product name based on the drive capacity
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if (!IsRemovable()) {
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SetProduct(GetProductData(), false);
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}
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SetUpCache(image_offset);
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}
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void SCSIHD::Open()
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{
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assert(!IsReady());
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off_t size = GetFileSize();
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// Sector size (default 512 bytes) and number of blocks
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SetSectorSizeInBytes(GetConfiguredSectorSize() ? GetConfiguredSectorSize() : 512);
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SetBlockCount(static_cast<uint32_t>(size >> GetSectorSizeShiftCount()));
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FinalizeSetup(0);
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}
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vector<uint8_t> SCSIHD::InquiryInternal() const
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{
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return HandleInquiry(device_type::DIRECT_ACCESS, scsi_level, IsRemovable());
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}
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void SCSIHD::ModeSelect(scsi_command cmd, const vector<int>& cdb, const vector<uint8_t>& buf, int length) const
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{
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scsi_command_util::ModeSelect(GetLogger(), cmd, cdb, buf, length, 1 << GetSectorSizeShiftCount());
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}
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void SCSIHD::AddFormatPage(map<int, vector<byte>>& pages, bool changeable) const
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{
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Disk::AddFormatPage(pages, changeable);
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EnrichFormatPage(pages, changeable, 1 << GetSectorSizeShiftCount());
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}
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void SCSIHD::AddVendorPage(map<int, vector<byte>>& pages, int page, bool changeable) const
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{
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// Page code 48
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if (page == 0x30 || page == 0x3f) {
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AddAppleVendorModePage(pages, changeable);
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}
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}
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