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108 lines
4.5 KiB
C#
108 lines
4.5 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : ArchiveCorp.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Archive Corp. vendor commands.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains vendor commands for Archive Corp. SCSI devices.
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright © 2011-2025 Natalia Portillo
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// ****************************************************************************/
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using System;
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using Aaru.Logging;
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// ReSharper disable UnusedMember.Global
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namespace Aaru.Devices;
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public partial class Device
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{
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/// <summary>Gets the underlying drive cylinder, head and index bytes for the specified SCSI LBA.</summary>
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/// <param name="buffer">Buffer.</param>
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/// <param name="senseBuffer">Sense buffer.</param>
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/// <param name="lba">Address.</param>
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/// <param name="timeout">Timeout.</param>
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/// <param name="duration">Duration.</param>
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public bool ArchiveCorpRequestBlockAddress(out byte[] buffer, out ReadOnlySpan<byte> senseBuffer, uint lba,
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uint timeout, out double duration)
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{
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buffer = new byte[3];
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Span<byte> cdb = CdbBuffer[..6];
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cdb.Clear();
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senseBuffer = SenseBuffer;
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cdb[0] = (byte)ScsiCommands.ArchiveRequestBlockAddress;
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cdb[1] = (byte)((lba & 0x1F0000) >> 16);
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cdb[2] = (byte)((lba & 0xFF00) >> 8);
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cdb[3] = (byte)(lba & 0xFF);
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cdb[4] = 3;
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LastError = SendScsiCommand(cdb, ref buffer, timeout, ScsiDirection.In, out duration, out bool sense);
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Error = LastError != 0;
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AaruLogging.Debug(SCSI_MODULE_NAME, Localization.ARCHIVE_CORP_REQUEST_BLOCK_ADDRESS_took_0_ms, duration);
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return sense;
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}
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/// <summary>Gets the underlying drive cylinder, head and index bytes for the specified SCSI LBA.</summary>
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/// <param name="senseBuffer">Sense buffer.</param>
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/// <param name="lba">Logical Block Address, starting from 1.</param>
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/// <param name="timeout">Timeout.</param>
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/// <param name="duration">Duration.</param>
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public bool ArchiveCorpSeekBlock(out ReadOnlySpan<byte> senseBuffer, uint lba, uint timeout, out double duration) =>
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ArchiveCorpSeekBlock(out senseBuffer, false, lba, timeout, out duration);
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/// <summary>Positions the tape at the specified block address</summary>
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/// <param name="senseBuffer">Sense buffer.</param>
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/// <param name="immediate">If set to <c>true</c>, return from the command immediately.</param>
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/// <param name="lba">Logical Block Address, starting from 1.</param>
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/// <param name="timeout">Timeout.</param>
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/// <param name="duration">Duration.</param>
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public bool ArchiveCorpSeekBlock(out ReadOnlySpan<byte> senseBuffer, bool immediate, uint lba, uint timeout,
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out double duration)
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{
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byte[] buffer = [];
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Span<byte> cdb = CdbBuffer[..6];
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cdb.Clear();
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senseBuffer = SenseBuffer;
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cdb[0] = (byte)ScsiCommands.ArchiveSeekBlock;
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cdb[1] = (byte)((lba & 0x1F0000) >> 16);
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cdb[2] = (byte)((lba & 0xFF00) >> 8);
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cdb[3] = (byte)(lba & 0xFF);
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if(immediate) cdb[1] += 0x01;
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LastError = SendScsiCommand(cdb, ref buffer, timeout, ScsiDirection.None, out duration, out bool sense);
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Error = LastError != 0;
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AaruLogging.Debug(SCSI_MODULE_NAME, Localization.ARCHIVE_CORP_SEEK_BLOCK_took_0_ms, duration);
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return sense;
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}
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} |