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104 lines
5.0 KiB
C#
104 lines
5.0 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : HP.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Hewlett-Packard vendor commands.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains vendor commands for Hewlett-Packard 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>Sends the HP READ LONG vendor command</summary>
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/// <returns><c>true</c> if the command failed and <paramref name="senseBuffer" /> contains the sense buffer.</returns>
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/// <param name="buffer">Buffer where the SCSI READ LONG response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</param>
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/// <param name="relAddr">If set to <c>true</c> address contain two's complement offset from last read address.</param>
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/// <param name="address">PBA/LBA to read.</param>
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/// <param name="blockBytes">How many bytes per block.</param>
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/// <param name="pba">If set to <c>true</c> address contain physical block address.</param>
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/// <param name="timeout">Timeout in seconds.</param>
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/// <param name="duration">Duration in milliseconds it took for the device to execute the command.</param>
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public bool HpReadLong(out byte[] buffer, out ReadOnlySpan<byte> senseBuffer, bool relAddr, uint address,
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ushort blockBytes, bool pba, uint timeout, out double duration) =>
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HpReadLong(out buffer, out senseBuffer, relAddr, address, 0, blockBytes, pba, false, timeout, out duration);
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/// <summary>Sends the HP READ LONG vendor command</summary>
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/// <returns><c>true</c> if the command failed and <paramref name="senseBuffer" /> contains the sense buffer.</returns>
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/// <param name="buffer">Buffer where the SCSI READ LONG response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</param>
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/// <param name="relAddr">If set to <c>true</c> address contain two's complement offset from last read address.</param>
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/// <param name="address">PBA/LBA to read.</param>
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/// <param name="transferLen">How many blocks/bytes to read.</param>
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/// <param name="blockBytes">How many bytes per block.</param>
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/// <param name="pba">If set to <c>true</c> address contain physical block address.</param>
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/// <param name="sectorCount">
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/// If set to <c>true</c> <paramref name="transferLen" /> is a count of secors to read. Otherwise
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/// it will be ignored
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/// </param>
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/// <param name="timeout">Timeout in seconds.</param>
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/// <param name="duration">Duration in milliseconds it took for the device to execute the command.</param>
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public bool HpReadLong(out byte[] buffer, out ReadOnlySpan<byte> senseBuffer, bool relAddr, uint address,
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ushort transferLen, ushort blockBytes, bool pba, bool sectorCount, uint timeout,
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out double duration)
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{
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senseBuffer = SenseBuffer;
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Span<byte> cdb = CdbBuffer[..10];
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cdb.Clear();
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cdb[0] = (byte)ScsiCommands.ReadLong;
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if(relAddr) cdb[1] += 0x01;
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cdb[2] = (byte)((address & 0xFF000000) >> 24);
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cdb[3] = (byte)((address & 0xFF0000) >> 16);
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cdb[4] = (byte)((address & 0xFF00) >> 8);
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cdb[5] = (byte)(address & 0xFF);
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cdb[7] = (byte)((transferLen & 0xFF00) >> 8);
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cdb[8] = (byte)(transferLen & 0xFF);
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if(pba) cdb[9] += 0x80;
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if(sectorCount) cdb[9] += 0x40;
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buffer = sectorCount ? new byte[blockBytes * transferLen] : new byte[transferLen];
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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.HP_READ_LONG_took_0_ms, duration);
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return sense;
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}
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} |