// /***************************************************************************
// The Disc Image Chef
// ----------------------------------------------------------------------------
//
// Filename       : Atapi.cs
// Author(s)      : Natalia Portillo <claunia@claunia.com>
//
// Component      : ATA commands.
//
// --[ Description ] ----------------------------------------------------------
//
//     Contains ATAPI commands.
//
// --[ 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 © 2011-2018 Natalia Portillo
// ****************************************************************************/

using DiscImageChef.Console;
using DiscImageChef.Decoders.ATA;

namespace DiscImageChef.Devices
{
    public partial class Device
    {
        /// <summary>
        /// Sends the ATA IDENTIFY PACKET DEVICE command to the device, using default device timeout
        /// </summary>
        /// <returns><c>true</c> if the command failed and <paramref name="statusRegisters"/> contains the error registers.</returns>
        /// <param name="buffer">Buffer.</param>
        /// <param name="statusRegisters">Status registers.</param>
        public bool AtapiIdentify(out byte[] buffer, out AtaErrorRegistersChs statusRegisters)
        {
            return AtapiIdentify(out buffer, out statusRegisters, Timeout);
        }

        /// <summary>
        /// Sends the ATA IDENTIFY PACKET DEVICE command to the device, using default device timeout
        /// </summary>
        /// <returns><c>true</c> if the command failed and <paramref name="statusRegisters"/> contains the error registers.</returns>
        /// <param name="buffer">Buffer.</param>
        /// <param name="statusRegisters">Status registers.</param>
        /// <param name="duration">Duration.</param>
        public bool AtapiIdentify(out byte[] buffer, out AtaErrorRegistersChs statusRegisters, out double duration)
        {
            return AtapiIdentify(out buffer, out statusRegisters, Timeout, out duration);
        }

        /// <summary>
        /// Sends the ATA IDENTIFY PACKET DEVICE command to the device
        /// </summary>
        /// <returns><c>true</c> if the command failed and <paramref name="statusRegisters"/> contains the error registers.</returns>
        /// <param name="buffer">Buffer.</param>
        /// <param name="statusRegisters">Status registers.</param>
        /// <param name="timeout">Timeout.</param>
        public bool AtapiIdentify(out byte[] buffer, out AtaErrorRegistersChs statusRegisters, uint timeout)
        {
            double duration;
            return AtapiIdentify(out buffer, out statusRegisters, timeout, out duration);
        }

        /// <summary>
        /// Sends the ATA IDENTIFY PACKET DEVICE command to the device
        /// </summary>
        /// <returns><c>true</c> if the command failed and <paramref name="statusRegisters"/> contains the error registers.</returns>
        /// <param name="buffer">Buffer.</param>
        /// <param name="statusRegisters">Status registers.</param>
        /// <param name="timeout">Timeout.</param>
        /// <param name="duration">Duration.</param>
        public bool AtapiIdentify(out byte[] buffer, out AtaErrorRegistersChs statusRegisters, uint timeout,
                                  out double duration)
        {
            buffer = new byte[512];
            AtaRegistersChs registers = new AtaRegistersChs();
            bool sense;

            registers.Command = (byte)AtaCommands.IdentifyPacketDevice;

            LastError = SendAtaCommand(registers, out statusRegisters, AtaProtocol.PioIn,
                                       AtaTransferRegister.NoTransfer, ref buffer, timeout, false, out duration,
                                       out sense);
            Error = LastError != 0;

            DicConsole.DebugWriteLine("ATA Device", "IDENTIFY PACKET DEVICE took {0} ms.", duration);

            return sense;
        }
    }
}