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https://github.com/aaru-dps/Aaru.git
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Natalia Portillo
741bb5389a
Introduces constant fields for respective debug module names, replacing the hardcoded ones. This is done to standardize the naming convention, reduce redundancy and potentially avoid any typos or name mismatches across the project. This change makes the code more maintainable and easier to update in case module names need to be changed.
101 lines
4.3 KiB
C#
101 lines
4.3 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : SMC.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : SCSI Media-changer Commands.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains SCSI commands defined in SMC standards.
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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 © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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using Aaru.Console;
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namespace Aaru.Devices;
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public partial class Device
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{
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/// <summary>Reads an attribute from the medium auxiliary memory, or reports which elements in the changer contain one</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="action">What to do, <see cref="ScsiAttributeAction" />.</param>
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/// <param name="element">Element address.</param>
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/// <param name="elementType">Element type.</param>
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/// <param name="volume">Volume number.</param>
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/// <param name="partition">Partition number.</param>
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/// <param name="firstAttribute">First attribute identificator.</param>
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/// <param name="cache">If set to <c>true</c> device can return cached data.</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 ReadAttribute(out byte[] buffer, out byte[] senseBuffer, ScsiAttributeAction action, ushort element,
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byte elementType, byte volume, byte partition, ushort firstAttribute, bool cache,
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uint timeout, out double duration)
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{
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buffer = new byte[256];
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byte[] cdb = new byte[16];
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senseBuffer = new byte[64];
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cdb[0] = (byte)ScsiCommands.ReadAttribute;
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cdb[1] = (byte)((byte)action & 0x1F);
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cdb[2] = (byte)((element & 0xFF00) >> 8);
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cdb[3] = (byte)(element & 0xFF);
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cdb[4] = (byte)(elementType & 0x0F);
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cdb[5] = volume;
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cdb[7] = partition;
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cdb[8] = (byte)((firstAttribute & 0xFF00) >> 8);
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cdb[9] = (byte)(firstAttribute & 0xFF);
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cdb[10] = (byte)((buffer.Length & 0xFF000000) >> 24);
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cdb[11] = (byte)((buffer.Length & 0xFF0000) >> 16);
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cdb[12] = (byte)((buffer.Length & 0xFF00) >> 8);
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cdb[13] = (byte)(buffer.Length & 0xFF);
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if(cache)
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cdb[14] += 0x01;
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LastError = SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration,
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out bool sense);
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Error = LastError != 0;
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if(sense)
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return true;
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uint attrLen = (uint)((buffer[0] << 24) + (buffer[1] << 16) + (buffer[2] << 8) + buffer[3] + 4);
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buffer = new byte[attrLen];
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cdb[10] = (byte)((buffer.Length & 0xFF000000) >> 24);
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cdb[11] = (byte)((buffer.Length & 0xFF0000) >> 16);
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cdb[12] = (byte)((buffer.Length & 0xFF00) >> 8);
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cdb[13] = (byte)(buffer.Length & 0xFF);
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senseBuffer = new byte[64];
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LastError = SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration,
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out sense);
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Error = LastError != 0;
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AaruConsole.DebugWriteLine(SCSI_MODULE_NAME, Localization.READ_ATTRIBUTE_took_0_ms, duration);
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return sense;
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}
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} |