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204 lines
10 KiB
C#
204 lines
10 KiB
C#
// /***************************************************************************
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// The Disc Image Chef
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// ----------------------------------------------------------------------------
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//
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// Filename : SyQuest.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : SyQuest vendor commands.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Contains vendor commands for SyQuest 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 © 2011-2018 Natalia Portillo
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// ****************************************************************************/
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using DiscImageChef.Console;
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namespace DiscImageChef.Devices
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{
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public partial class Device
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{
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/// <summary>
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/// Sends the SyQuest READ (6) command
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/// </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 response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</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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/// <param name="lba">Starting block.</param>
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/// <param name="blockSize">Block size in bytes.</param>
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public bool SyQuestRead6(out byte[] buffer, out byte[] senseBuffer, uint lba, uint blockSize, uint timeout,
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out double duration)
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{
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return SyQuestRead6(out buffer, out senseBuffer, lba, blockSize, 1, false, false, timeout, out duration);
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}
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/// <summary>
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/// Sends the SyQuest READ LONG (6) command
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/// </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 response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</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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/// <param name="lba">Starting block.</param>
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/// <param name="blockSize">Block size in bytes.</param>
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public bool SyQuestReadLong6(out byte[] buffer, out byte[] senseBuffer, uint lba, uint blockSize, uint timeout,
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out double duration)
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{
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return SyQuestRead6(out buffer, out senseBuffer, lba, blockSize, 1, false, true, timeout, out duration);
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}
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/// <summary>
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/// Sends the SyQuest READ (6) command
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/// </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 response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</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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/// <param name="lba">Starting block.</param>
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/// <param name="inhibitDma">If set to <c>true</c>, block will not be transfer and will reside in the drive's buffer.</param>
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/// <param name="readLong">If set to <c>true</c> drive will return ECC bytes and disable error detection.</param>
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/// <param name="blockSize">Block size in bytes.</param>
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/// <param name="transferLength">How many blocks to read.</param>
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public bool SyQuestRead6(out byte[] buffer, out byte[] senseBuffer, uint lba, uint blockSize,
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byte transferLength, bool inhibitDma, bool readLong, uint timeout,
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out double duration)
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{
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senseBuffer = new byte[32];
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byte[] cdb = new byte[6];
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bool sense;
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cdb[0] = (byte)ScsiCommands.Read6;
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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] = transferLength;
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if(inhibitDma) cdb[5] += 0x80;
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if(readLong) cdb[5] += 0x40;
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if(!inhibitDma && !readLong)
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buffer = transferLength == 0 ? new byte[256 * blockSize] : new byte[transferLength * blockSize];
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else if(readLong)
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{
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buffer = new byte[blockSize];
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cdb[4] = 1;
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}
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else buffer = new byte[0];
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if(!inhibitDma)
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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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else
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LastError = SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.None, out duration,
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out sense);
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Error = LastError != 0;
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DicConsole.DebugWriteLine("SCSI Device", "SYQUEST READ (6) took {0} ms.", duration);
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return sense;
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}
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/// <summary>
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/// Requests the usage, seek and error counters, and resets them
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/// </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="timeout">Timeout.</param>
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/// <param name="duration">Duration.</param>
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public bool SyQuestReadUsageCounter(out byte[] buffer, out byte[] senseBuffer, uint timeout,
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out double duration)
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{
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return AdaptecReadUsageCounter(out buffer, out senseBuffer, false, timeout, out duration);
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}
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/// <summary>
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/// Sends the SyQuest READ LONG (10) command
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/// </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 response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</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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/// <param name="lba">Starting block.</param>
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/// <param name="blockSize">Block size in bytes.</param>
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public bool SyQuestReadLong10(out byte[] buffer, out byte[] senseBuffer, uint lba, uint blockSize, uint timeout,
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out double duration)
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{
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return SyQuestRead10(out buffer, out senseBuffer, lba, blockSize, 1, false, true, timeout, out duration);
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}
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/// <summary>
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/// Sends the SyQuest READ (10) command
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/// </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 response will be stored</param>
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/// <param name="senseBuffer">Sense buffer.</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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/// <param name="lba">Starting block.</param>
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/// <param name="inhibitDma">If set to <c>true</c>, block will not be transfer and will reside in the drive's buffer.</param>
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/// <param name="readLong">If set to <c>true</c> drive will return ECC bytes and disable error detection.</param>
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/// <param name="blockSize">Block size in bytes.</param>
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/// <param name="transferLength">How many blocks to read.</param>
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public bool SyQuestRead10(out byte[] buffer, out byte[] senseBuffer, uint lba, uint blockSize,
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ushort transferLength, bool inhibitDma, bool readLong, uint timeout,
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out double duration)
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{
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senseBuffer = new byte[32];
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byte[] cdb = new byte[10];
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bool sense;
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cdb[0] = (byte)ScsiCommands.Read10;
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cdb[2] = (byte)((lba & 0xFF000000) >> 24);
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cdb[3] = (byte)((lba & 0xFF0000) >> 16);
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cdb[4] = (byte)((lba & 0xFF00) >> 8);
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cdb[5] = (byte)(lba & 0xFF);
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cdb[7] = (byte)((transferLength & 0xFF00) >> 8);
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cdb[8] = (byte)(transferLength & 0xFF);
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if(inhibitDma) cdb[9] += 0x80;
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if(readLong) cdb[9] += 0x40;
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if(!inhibitDma && !readLong) buffer = new byte[transferLength * blockSize];
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else if(readLong)
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{
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buffer = new byte[blockSize];
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cdb[4] = 1;
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}
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else buffer = new byte[0];
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if(!inhibitDma)
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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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else
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LastError = SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.None, out duration,
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out sense);
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Error = LastError != 0;
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DicConsole.DebugWriteLine("SCSI Device", "SYQUEST READ (10) took {0} ms.", duration);
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return sense;
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}
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}
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} |