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111 lines
4.0 KiB
C#
111 lines
4.0 KiB
C#
// /***************************************************************************
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// Aaru Data Preservation Suite
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// ----------------------------------------------------------------------------
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//
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// Filename : 12_13_14.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 PAGEs 12h, 13h, 14h: Medium partition page (2-4).
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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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#region Mode Pages 0x12, 0x13, 0x14: Medium partition page (2-4)
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/// <summary>Medium partition page (2-4) Page codes 0x12, 0x13 and 0x14</summary>
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public struct ModePage_12_13_14
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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>Array of partition sizes in units defined in mode page 11</summary>
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public ushort[] PartitionSizes;
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}
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public static ModePage_12_13_14? DecodeModePage_12_13_14(byte[] pageResponse)
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{
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if(pageResponse == null)
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return null;
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if((pageResponse[0] & 0x40) == 0x40)
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return null;
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if((pageResponse[0] & 0x3F) != 0x12 && (pageResponse[0] & 0x3F) != 0x13 && (pageResponse[0] & 0x3F) != 0x14)
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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 < 2)
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return null;
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var decoded = new ModePage_12_13_14();
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decoded.PS |= (pageResponse[0] & 0x80) == 0x80;
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decoded.PartitionSizes = new ushort[(pageResponse.Length - 2) / 2];
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for(var i = 2; i < pageResponse.Length; i += 2)
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{
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decoded.PartitionSizes[(i - 2) / 2] = (ushort)(pageResponse[i] << 8);
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decoded.PartitionSizes[(i - 2) / 2] += pageResponse[i + 1];
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}
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return decoded;
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}
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public static string PrettifyModePage_12_13_14(byte[] pageResponse) =>
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PrettifyModePage_12_13_14(DecodeModePage_12_13_14(pageResponse));
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public static string PrettifyModePage_12_13_14(ModePage_12_13_14? modePage)
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{
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if(!modePage.HasValue)
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return null;
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ModePage_12_13_14 page = modePage.Value;
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var sb = new StringBuilder();
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sb.AppendLine(Localization.SCSI_medium_partition_page_extra);
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if(page.PS)
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sb.AppendLine("\t" + Localization.Parameters_can_be_saved);
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sb.AppendFormat("\t" + Localization.Medium_has_defined_0_partitions, page.PartitionSizes.Length).AppendLine();
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for(var i = 0; i < page.PartitionSizes.Length; i++)
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sb.AppendFormat("\t" + Localization.Partition_0_is_1_units_long, i, page.PartitionSizes[i]).AppendLine();
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return sb.ToString();
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}
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#endregion Mode Pages 0x12, 0x13, 0x14: Medium partition page (2-4)
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} |