mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
Natalia Portillo
74e4dadbdc
the card right now, until I get real hardware and check out why it's better to be safe than sorry, so reading is limited to 1 block at a time.
275 lines
10 KiB
C#
275 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 : SecureDigital.cs
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// Version : 1.0
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// Author(s) : Natalia Portillo
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//
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// Component : Component
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//
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// Revision : $Revision$
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// Last change by : $Author$
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// Date : $Date$
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//
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// --[ Description ] ----------------------------------------------------------
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//
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// Description
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//
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// --[ License ] --------------------------------------------------------------
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// ----------------------------------------------------------------------------
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// Copyright (C) 2011-2015 Claunia.com
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// ****************************************************************************/
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// //$Id$
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using System;
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using System.Collections.Generic;
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using DiscImageChef.Console;
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using DiscImageChef.Core.Logging;
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using DiscImageChef.Decoders.MMC;
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using DiscImageChef.Devices;
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namespace DiscImageChef.Core.Devices.Scanning
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{
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public static class SecureDigital
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{
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public static ScanResults Scan(string MHDDLogPath, string IBGLogPath, string devicePath, Device dev)
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{
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ScanResults results = new ScanResults();
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bool aborted;
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MHDDLog mhddLog;
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IBGLog ibgLog;
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byte[] cmdBuf;
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bool sense;
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results.blocks = 0;
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uint[] response;
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uint timeout = 5;
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double duration = 0;
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ushort currentProfile = 0x0001;
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uint blocksToRead = 1;
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uint blockSize = 512;
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if(dev.Type == DeviceType.MMC)
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{
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ExtendedCSD ecsd = new ExtendedCSD();
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CSD csd = new CSD();
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sense = dev.ReadExtendedCSD(out cmdBuf, out response, timeout, out duration);
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if(!sense)
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{
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ecsd = Decoders.MMC.Decoders.DecodeExtendedCSD(cmdBuf);
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blocksToRead = ecsd.OptimalReadSize;
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results.blocks = ecsd.SectorCount;
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blockSize = (uint)(ecsd.SectorSize == 1 ? 4096 : 512);
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}
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if(sense || results.blocks == 0)
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{
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sense = dev.ReadCSD(out cmdBuf, out response, timeout, out duration);
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if(!sense)
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{
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csd = Decoders.MMC.Decoders.DecodeCSD(cmdBuf);
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results.blocks = (ulong)((csd.Size + 1) * Math.Pow(2, csd.SizeMultiplier + 2));
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blockSize = (uint)Math.Pow(2, csd.ReadBlockLength);
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}
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}
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}
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else if(dev.Type == DeviceType.SecureDigital)
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{
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Decoders.SecureDigital.CSD csd = new Decoders.SecureDigital.CSD();
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sense = dev.ReadCSD(out cmdBuf, out response, timeout, out duration);
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if(!sense)
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{
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csd = Decoders.SecureDigital.Decoders.DecodeCSD(cmdBuf);
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results.blocks = (ulong)(csd.Structure == 0 ? (csd.Size + 1) * Math.Pow(2, csd.SizeMultiplier + 2) : (csd.Size + 1) * 1024);
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blockSize = (uint)Math.Pow(2, csd.ReadBlockLength);
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}
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}
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if(results.blocks == 0)
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{
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DicConsole.ErrorWriteLine("Unable to get device size.");
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return results;
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}
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sense = true;
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while(true)
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{
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sense = dev.Read(out cmdBuf, out response, 0, blockSize, blocksToRead, false, timeout, out duration);
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if(sense)
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blocksToRead /= 2;
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if(!sense || blocksToRead == 1)
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break;
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}
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if(sense)
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{
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blocksToRead = 1;
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DicConsole.ErrorWriteLine("Device error {0} trying to guess ideal transfer length.", dev.LastError);
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return results;
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}
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results.A = 0; // <3ms
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results.B = 0; // >=3ms, <10ms
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results.C = 0; // >=10ms, <50ms
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results.D = 0; // >=50ms, <150ms
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results.E = 0; // >=150ms, <500ms
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results.F = 0; // >=500ms
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results.errored = 0;
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DateTime start;
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DateTime end;
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results.processingTime = 0;
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double currentSpeed = 0;
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results.maxSpeed = double.MinValue;
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results.minSpeed = double.MaxValue;
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results.unreadableSectors = new List<ulong>();
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results.seekMax = double.MinValue;
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results.seekMin = double.MaxValue;
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results.seekTotal = 0;
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const int seekTimes = 1000;
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double seekCur = 0;
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Random rnd = new Random();
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uint seekPos = (uint)rnd.Next((int)results.blocks);
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aborted = false;
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System.Console.CancelKeyPress += (sender, e) =>
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{
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e.Cancel = aborted = true;
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};
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DicConsole.WriteLine("Reading {0} sectors at a time.", blocksToRead);
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mhddLog = new MHDDLog(MHDDLogPath, dev, results.blocks, blockSize, blocksToRead);
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ibgLog = new IBGLog(IBGLogPath, currentProfile);
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start = DateTime.UtcNow;
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for(ulong i = 0; i < results.blocks; i += blocksToRead)
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{
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if(aborted)
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break;
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if((results.blocks - i) < blocksToRead)
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blocksToRead = (byte)(results.blocks - i);
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#pragma warning disable RECS0018 // Comparison of floating point numbers with equality operator
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if(currentSpeed > results.maxSpeed && currentSpeed != 0)
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results.maxSpeed = currentSpeed;
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if(currentSpeed < results.minSpeed && currentSpeed != 0)
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results.minSpeed = currentSpeed;
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#pragma warning restore RECS0018 // Comparison of floating point numbers with equality operator
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DicConsole.Write("\rReading sector {0} of {1} ({2:F3} MiB/sec.)", i, results.blocks, currentSpeed);
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bool error = dev.Read(out cmdBuf, out response, (uint)i, blockSize, blocksToRead, false, timeout, out duration);
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if(!error)
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{
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if(duration >= 500)
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{
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results.F += blocksToRead;
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}
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else if(duration >= 150)
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{
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results.E += blocksToRead;
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}
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else if(duration >= 50)
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{
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results.D += blocksToRead;
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}
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else if(duration >= 10)
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{
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results.C += blocksToRead;
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}
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else if(duration >= 3)
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{
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results.B += blocksToRead;
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}
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else
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{
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results.A += blocksToRead;
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}
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mhddLog.Write(i, duration);
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ibgLog.Write(i, currentSpeed * 1024);
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}
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else
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{
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results.errored += blocksToRead;
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for(ulong b = i; b < i + blocksToRead; b++)
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results.unreadableSectors.Add(b);
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if(duration < 500)
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mhddLog.Write(i, 65535);
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else
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mhddLog.Write(i, duration);
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ibgLog.Write(i, 0);
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}
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#pragma warning disable IDE0004 // Without this specific cast, it gives incorrect values
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currentSpeed = ((double)blockSize * blocksToRead / (double)1048576) / (duration / (double)1000);
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#pragma warning restore IDE0004 // Without this specific cast, it gives incorrect values
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GC.Collect();
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}
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end = DateTime.UtcNow;
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DicConsole.WriteLine();
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mhddLog.Close();
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#pragma warning disable IDE0004 // Without this specific cast, it gives incorrect values
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ibgLog.Close(dev, results.blocks, blockSize, (end - start).TotalSeconds, currentSpeed * 1024, (((double)blockSize * (double)(results.blocks + 1)) / 1024) / (results.processingTime / 1000), devicePath);
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#pragma warning restore IDE0004 // Without this specific cast, it gives incorrect values
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for(int i = 0; i < seekTimes; i++)
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{
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if(aborted)
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break;
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seekPos = (uint)rnd.Next((int)results.blocks);
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DicConsole.Write("\rSeeking to sector {0}...\t\t", seekPos);
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dev.Read(out cmdBuf, out response, (uint)seekPos, blockSize, blocksToRead, false, timeout, out seekCur);
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#pragma warning disable RECS0018 // Comparison of floating point numbers with equality operator
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if(seekCur > results.seekMax && seekCur != 0)
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results.seekMax = seekCur;
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if(seekCur < results.seekMin && seekCur != 0)
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results.seekMin = seekCur;
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#pragma warning restore RECS0018 // Comparison of floating point numbers with equality operator
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results.seekTotal += seekCur;
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GC.Collect();
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}
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DicConsole.WriteLine();
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results.processingTime /= 1000;
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results.totalTime = (end - start).TotalSeconds;
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#pragma warning disable IDE0004 // Without this specific cast, it gives incorrect values
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results.avgSpeed = (((double)blockSize * (double)(results.blocks + 1)) / 1048576) / results.processingTime;
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#pragma warning restore IDE0004 // Without this specific cast, it gives incorrect values
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results.seekTimes = seekTimes;
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return results;
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}
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}
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}
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