Aaru/SCSI/Modes/0B.cs

// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : 0B.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : Device structures decoders.
//
// --[ Description ] ----------------------------------------------------------
//
//     Decodes SCSI MODE PAGE 0Bh: Medium types supported page.
//
// --[ License ] --------------------------------------------------------------
//
//     This library is free software; you can redistribute it and/or modify
//     it under the terms of the GNU Lesser General Public License as
//     published by the Free Software Foundation; either version 2.1 of the
//     License, or (at your option) any later version.
//
//     This library is distributed in the hope that it will be useful, but
//     WITHOUT ANY WARRANTY; without even the implied warranty of
//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
//     Lesser General Public License for more details.
//
//     You should have received a copy of the GNU Lesser General Public
//     License along with this library; if not, see <http://www.gnu.org/licenses/>.
//
// ----------------------------------------------------------------------------
// Copyright © 2011-2019 Natalia Portillo
// ****************************************************************************/

using System.Diagnostics.CodeAnalysis;
using System.Text;

namespace DiscImageChef.Decoders.SCSI
{
    [SuppressMessage("ReSharper", "InconsistentNaming")]
    [SuppressMessage("ReSharper", "MemberCanBeInternal")]
    [SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
    public static partial class Modes
    {
        #region Mode Page 0x0B: Medium types supported page
        /// <summary>
        ///     Disconnect-reconnect page
        ///     Page code 0x0B
        ///     8 bytes in SCSI-2
        /// </summary>
        public struct ModePage_0B
        {
            /// <summary>
            ///     Parameters can be saved
            /// </summary>
            public bool PS;
            public MediumTypes MediumType1;
            public MediumTypes MediumType2;
            public MediumTypes MediumType3;
            public MediumTypes MediumType4;
        }

        public static ModePage_0B? DecodeModePage_0B(byte[] pageResponse)
        {
            if((pageResponse?[0] & 0x40) == 0x40) return null;

            if((pageResponse?[0] & 0x3F) != 0x0B) return null;

            if(pageResponse[1] + 2 != pageResponse.Length) return null;

            if(pageResponse.Length < 8) return null;

            ModePage_0B decoded = new ModePage_0B();

            decoded.PS          |= (pageResponse[0] & 0x80) == 0x80;
            decoded.MediumType1 =  (MediumTypes)pageResponse[4];
            decoded.MediumType2 =  (MediumTypes)pageResponse[5];
            decoded.MediumType3 =  (MediumTypes)pageResponse[6];
            decoded.MediumType4 =  (MediumTypes)pageResponse[7];

            return decoded;
        }

        public static string PrettifyModePage_0B(byte[] pageResponse)
        {
            return PrettifyModePage_0B(DecodeModePage_0B(pageResponse));
        }

        public static string PrettifyModePage_0B(ModePage_0B? modePage)
        {
            if(!modePage.HasValue) return null;

            ModePage_0B   page = modePage.Value;
            StringBuilder sb   = new StringBuilder();

            sb.AppendLine("SCSI Medium types supported page:");

            if(page.PS) sb.AppendLine("\tParameters can be saved");

            if(page.MediumType1 != MediumTypes.Default)
                sb.AppendFormat("Supported medium type one: {0}", GetMediumTypeDescription(page.MediumType1))
                  .AppendLine();
            if(page.MediumType2 != MediumTypes.Default)
                sb.AppendFormat("Supported medium type two: {0}", GetMediumTypeDescription(page.MediumType2))
                  .AppendLine();
            if(page.MediumType3 != MediumTypes.Default)
                sb.AppendFormat("Supported medium type three: {0}", GetMediumTypeDescription(page.MediumType3))
                  .AppendLine();
            if(page.MediumType4 != MediumTypes.Default)
                sb.AppendFormat("Supported medium type four: {0}", GetMediumTypeDescription(page.MediumType4))
                  .AppendLine();

            return sb.ToString();
        }
        #endregion Mode Page 0x0B: Medium types supported page
    }
}