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https://github.com/aaru-dps/Aaru.git
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253 lines
9.0 KiB
C#
253 lines
9.0 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : 01_MMC.cs
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// Author(s) : Natalia Portillo <claunia@claunia.com>
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//
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// Component : Device structures decoders.
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Decodes SCSI MODE PAGE 01h: Read error recovery page for MultiMedia 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 © 2011-2023 Natalia Portillo
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// ****************************************************************************/
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using System.Diagnostics.CodeAnalysis;
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using System.Text;
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namespace Aaru.Decoders.SCSI;
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[SuppressMessage("ReSharper", "InconsistentNaming")]
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[SuppressMessage("ReSharper", "MemberCanBeInternal")]
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[SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
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public static partial class Modes
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{
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public static byte[] EncodeModePage_01_MMC(ModePage_01_MMC page)
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{
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var pg = new byte[12];
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pg[0] = 0x01;
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pg[1] = 10;
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if(page.PS)
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pg[0] += 0x80;
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pg[2] = page.Parameter;
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pg[3] = page.ReadRetryCount;
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// This is from a newer version of SCSI unknown what happen for drives expecting an 8 byte page
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pg[8] = page.WriteRetryCount;
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pg[10] = (byte)((page.RecoveryTimeLimit & 0xFF00) << 8);
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pg[11] = (byte)(page.RecoveryTimeLimit & 0xFF);
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return pg;
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}
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#region Mode Page 0x01: Read error recovery page for MultiMedia Devices
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/// <summary>
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/// Read error recovery page for MultiMedia Devices Page code 0x01 8 bytes in SCSI-2, MMC-1 12 bytes in MMC-2,
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/// MMC-3
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/// </summary>
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public struct ModePage_01_MMC
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{
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/// <summary>Parameters can be saved</summary>
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public bool PS;
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/// <summary>Error recovery parameter</summary>
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public byte Parameter;
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/// <summary>How many times to retry a read operation</summary>
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public byte ReadRetryCount;
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/// <summary>How many times to retry a write operation</summary>
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public byte WriteRetryCount;
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/// <summary>Maximum time in ms to use in data error recovery procedures</summary>
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public ushort RecoveryTimeLimit;
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}
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public static ModePage_01_MMC? DecodeModePage_01_MMC(byte[] pageResponse)
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{
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if((pageResponse?[0] & 0x40) == 0x40)
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return null;
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if((pageResponse?[0] & 0x3F) != 0x01)
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return null;
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if(pageResponse[1] + 2 != pageResponse.Length)
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return null;
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if(pageResponse.Length < 8)
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return null;
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var decoded = new ModePage_01_MMC();
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decoded.PS |= (pageResponse[0] & 0x80) == 0x80;
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decoded.Parameter = pageResponse[2];
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decoded.ReadRetryCount = pageResponse[3];
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if(pageResponse.Length < 12)
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return decoded;
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decoded.WriteRetryCount = pageResponse[8];
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decoded.RecoveryTimeLimit = (ushort)((pageResponse[10] << 8) + pageResponse[11]);
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return decoded;
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}
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public static string PrettifyModePage_01_MMC(byte[] pageResponse) =>
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PrettifyModePage_01_MMC(DecodeModePage_01_MMC(pageResponse));
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public static string PrettifyModePage_01_MMC(ModePage_01_MMC? modePage)
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{
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if(!modePage.HasValue)
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return null;
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ModePage_01_MMC page = modePage.Value;
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var sb = new StringBuilder();
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sb.AppendLine(Localization.SCSI_Read_error_recovery_page_for_MultiMedia_Devices);
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if(page.PS)
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sb.AppendLine("\t" + Localization.Parameters_can_be_saved);
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if(page.ReadRetryCount > 0)
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{
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sb.AppendFormat("\t" + Localization.Drive_will_repeat_read_operations_0_times, page.ReadRetryCount).
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AppendLine();
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}
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string AllUsed = "\t" + Localization.All_available_recovery_procedures_will_be_used + "\n";
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string CIRCRetriesUsed = "\t" + Localization.Only_retries_and_CIRC_are_used + "\n";
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string RetriesUsed = "\t" + Localization.Only_retries_are_used + "\n";
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string RecoveredNotReported = "\t" + Localization.Recovered_errors_will_not_be_reported + "\n";
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string RecoveredReported = "\t" + Localization.Recovered_errors_will_be_reported + "\n";
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string RecoveredAbort =
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"\t" + Localization.Recovered_errors_will_be_reported_and_aborted_with_CHECK_CONDITION + "\n";
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string UnrecECCAbort = "\t" + Localization.Unrecovered_ECC_errors_will_return_CHECK_CONDITION;
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string UnrecCIRCAbort = "\t" + Localization.Unrecovered_CIRC_errors_will_return_CHECK_CONDITION;
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string UnrecECCNotAbort = "\t" + Localization.Unrecovered_ECC_errors_will_not_abort_the_transfer;
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string UnrecCIRCNotAbort = "\t" + Localization.Unrecovered_CIRC_errors_will_not_abort_the_transfer;
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string UnrecECCAbortData =
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"\t" + Localization.Unrecovered_ECC_errors_will_return_CHECK_CONDITION_and_the_uncorrected_data;
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string UnrecCIRCAbortData =
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"\t" + Localization.Unrecovered_CIRC_errors_will_return_CHECK_CONDITION_and_the_uncorrected_data;
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switch(page.Parameter)
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{
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case 0x00:
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sb.AppendLine(AllUsed + RecoveredNotReported + UnrecECCAbort);
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break;
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case 0x01:
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sb.AppendLine(CIRCRetriesUsed + RecoveredNotReported + UnrecCIRCAbort);
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break;
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case 0x04:
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sb.AppendLine(AllUsed + RecoveredReported + UnrecECCAbort);
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break;
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case 0x05:
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sb.AppendLine(CIRCRetriesUsed + RecoveredReported + UnrecCIRCAbort);
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break;
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case 0x06:
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sb.AppendLine(AllUsed + RecoveredAbort + UnrecECCAbort);
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break;
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case 0x07:
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sb.AppendLine(RetriesUsed + RecoveredAbort + UnrecCIRCAbort);
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break;
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case 0x10:
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sb.AppendLine(AllUsed + RecoveredNotReported + UnrecECCNotAbort);
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break;
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case 0x11:
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sb.AppendLine(CIRCRetriesUsed + RecoveredNotReported + UnrecCIRCNotAbort);
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break;
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case 0x14:
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sb.AppendLine(AllUsed + RecoveredReported + UnrecECCNotAbort);
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break;
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case 0x15:
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sb.AppendLine(CIRCRetriesUsed + RecoveredReported + UnrecCIRCNotAbort);
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break;
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case 0x20:
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sb.AppendLine(AllUsed + RecoveredNotReported + UnrecECCAbortData);
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break;
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case 0x21:
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sb.AppendLine(CIRCRetriesUsed + RecoveredNotReported + UnrecCIRCAbortData);
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break;
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case 0x24:
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sb.AppendLine(AllUsed + RecoveredReported + UnrecECCAbortData);
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break;
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case 0x25:
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sb.AppendLine(CIRCRetriesUsed + RecoveredReported + UnrecCIRCAbortData);
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break;
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case 0x26:
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sb.AppendLine(AllUsed + RecoveredAbort + UnrecECCAbortData);
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break;
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case 0x27:
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sb.AppendLine(RetriesUsed + RecoveredAbort + UnrecCIRCAbortData);
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break;
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case 0x30:
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goto case 0x10;
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case 0x31:
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goto case 0x11;
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case 0x34:
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goto case 0x14;
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case 0x35:
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goto case 0x15;
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default:
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sb.AppendFormat(Localization.Unknown_recovery_parameter_0, page.Parameter).AppendLine();
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break;
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}
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if(page.WriteRetryCount > 0)
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{
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sb.AppendFormat("\t" + Localization.Drive_will_repeat_write_operations_0_times, page.WriteRetryCount).
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AppendLine();
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}
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if(page.RecoveryTimeLimit > 0)
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{
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sb.AppendFormat("\t" + Localization.Drive_will_employ_a_maximum_of_0_ms_to_recover_data,
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page.RecoveryTimeLimit).
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AppendLine();
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}
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return sb.ToString();
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}
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#endregion Mode Page 0x01: Read error recovery page for MultiMedia Devices
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} |