mirror of
https://github.com/aaru-dps/Aaru.git
synced 2025-12-16 19:24:25 +00:00
248 lines
10 KiB
C#
248 lines
10 KiB
C#
// /***************************************************************************
|
|
// The Disc Image Chef
|
|
// ----------------------------------------------------------------------------
|
|
//
|
|
// Filename : SecureDigital.cs
|
|
// Author(s) : Natalia Portillo <claunia@claunia.com>
|
|
//
|
|
// Component : Core algorithms.
|
|
//
|
|
// --[ Description ] ----------------------------------------------------------
|
|
//
|
|
// Scans SecureDigital and MultiMediaCard devices.
|
|
//
|
|
// --[ License ] --------------------------------------------------------------
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation, either version 3 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program 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 General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
//
|
|
// ----------------------------------------------------------------------------
|
|
// Copyright © 2011-2019 Natalia Portillo
|
|
// ****************************************************************************/
|
|
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using DiscImageChef.CommonTypes.Enums;
|
|
using DiscImageChef.Core.Logging;
|
|
using DiscImageChef.Decoders.MMC;
|
|
|
|
namespace DiscImageChef.Core.Devices.Scanning
|
|
{
|
|
/// <summary>
|
|
/// Implements scanning a SecureDigital or MultiMediaCard flash card
|
|
/// </summary>
|
|
public partial class MediaScan
|
|
{
|
|
ScanResults SecureDigital()
|
|
{
|
|
ScanResults results = new ScanResults();
|
|
byte[] cmdBuf;
|
|
bool sense;
|
|
results.Blocks = 0;
|
|
const uint TIMEOUT = 5;
|
|
double duration;
|
|
const ushort SD_PROFILE = 0x0001;
|
|
uint blocksToRead = 128;
|
|
uint blockSize = 512;
|
|
bool byteAddressed = true;
|
|
|
|
switch(dev.Type)
|
|
{
|
|
case DeviceType.MMC:
|
|
{
|
|
sense = dev.ReadExtendedCsd(out cmdBuf, out _, TIMEOUT, out _);
|
|
if(!sense)
|
|
{
|
|
ExtendedCSD ecsd = Decoders.MMC.Decoders.DecodeExtendedCSD(cmdBuf);
|
|
blocksToRead = ecsd.OptimalReadSize;
|
|
results.Blocks = ecsd.SectorCount;
|
|
blockSize = (uint)(ecsd.SectorSize == 1 ? 4096 : 512);
|
|
// Supposing it's high-capacity MMC if it has Extended CSD...
|
|
byteAddressed = false;
|
|
}
|
|
|
|
if(sense || results.Blocks == 0)
|
|
{
|
|
sense = dev.ReadCsd(out cmdBuf, out _, TIMEOUT, out _);
|
|
if(!sense)
|
|
{
|
|
CSD csd = Decoders.MMC.Decoders.DecodeCSD(cmdBuf);
|
|
results.Blocks = (ulong)((csd.Size + 1) * Math.Pow(2, csd.SizeMultiplier + 2));
|
|
blockSize = (uint)Math.Pow(2, csd.ReadBlockLength);
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case DeviceType.SecureDigital:
|
|
{
|
|
sense = dev.ReadCsd(out cmdBuf, out _, TIMEOUT, out _);
|
|
if(!sense)
|
|
{
|
|
Decoders.SecureDigital.CSD csd = Decoders.SecureDigital.Decoders.DecodeCSD(cmdBuf);
|
|
results.Blocks = (ulong)(csd.Structure == 0
|
|
? (csd.Size + 1) * Math.Pow(2, csd.SizeMultiplier + 2)
|
|
: (csd.Size + 1) * 1024);
|
|
blockSize = (uint)Math.Pow(2, csd.ReadBlockLength);
|
|
// Structure >=1 for SDHC/SDXC, so that's block addressed
|
|
byteAddressed = csd.Structure == 0;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if(results.Blocks == 0)
|
|
{
|
|
StoppingErrorMessage?.Invoke("Unable to get device size.");
|
|
return results;
|
|
}
|
|
|
|
while(true)
|
|
{
|
|
sense = dev.Read(out cmdBuf, out _, 0, blockSize, blocksToRead, byteAddressed, TIMEOUT, out duration);
|
|
|
|
if(sense) blocksToRead /= 2;
|
|
|
|
if(!sense || blocksToRead == 1) break;
|
|
}
|
|
|
|
if(sense)
|
|
{
|
|
StoppingErrorMessage?.Invoke($"Device error {dev.LastError} trying to guess ideal transfer length.");
|
|
return results;
|
|
}
|
|
|
|
results.A = 0; // <3ms
|
|
results.B = 0; // >=3ms, <10ms
|
|
results.C = 0; // >=10ms, <50ms
|
|
results.D = 0; // >=50ms, <150ms
|
|
results.E = 0; // >=150ms, <500ms
|
|
results.F = 0; // >=500ms
|
|
results.Errored = 0;
|
|
DateTime start;
|
|
DateTime end;
|
|
results.ProcessingTime = 0;
|
|
double currentSpeed = 0;
|
|
results.MaxSpeed = double.MinValue;
|
|
results.MinSpeed = double.MaxValue;
|
|
results.UnreadableSectors = new List<ulong>();
|
|
results.SeekMax = double.MinValue;
|
|
results.SeekMin = double.MaxValue;
|
|
results.SeekTotal = 0;
|
|
const int SEEK_TIMES = 1000;
|
|
|
|
Random rnd = new Random();
|
|
|
|
UpdateStatus?.Invoke($"Reading {blocksToRead} sectors at a time.");
|
|
|
|
InitBlockMap?.Invoke(results.Blocks, blockSize, blocksToRead, SD_PROFILE);
|
|
MhddLog mhddLog = new MhddLog(mhddLogPath, dev, results.Blocks, blockSize, blocksToRead);
|
|
IbgLog ibgLog = new IbgLog(ibgLogPath, SD_PROFILE);
|
|
|
|
start = DateTime.UtcNow;
|
|
DateTime timeSpeedStart = DateTime.UtcNow;
|
|
ulong sectorSpeedStart = 0;
|
|
InitProgress?.Invoke();
|
|
for(ulong i = 0; i < results.Blocks; i += blocksToRead)
|
|
{
|
|
if(aborted) break;
|
|
|
|
if(results.Blocks - i < blocksToRead) blocksToRead = (byte)(results.Blocks - i);
|
|
|
|
#pragma warning disable RECS0018 // Comparison of floating point numbers with equality operator
|
|
if(currentSpeed > results.MaxSpeed && currentSpeed != 0) results.MaxSpeed = currentSpeed;
|
|
if(currentSpeed < results.MinSpeed && currentSpeed != 0) results.MinSpeed = currentSpeed;
|
|
#pragma warning restore RECS0018 // Comparison of floating point numbers with equality operator
|
|
|
|
UpdateProgress?.Invoke($"Reading sector {i} of {results.Blocks} ({currentSpeed:F3} MiB/sec.)", (long)i,
|
|
(long)results.Blocks);
|
|
|
|
bool error = dev.Read(out cmdBuf, out _, (uint)i, blockSize, blocksToRead, byteAddressed, TIMEOUT,
|
|
out duration);
|
|
|
|
if(!error)
|
|
{
|
|
if(duration >= 500) results.F += blocksToRead;
|
|
else if(duration >= 150) results.E += blocksToRead;
|
|
else if(duration >= 50) results.D += blocksToRead;
|
|
else if(duration >= 10) results.C += blocksToRead;
|
|
else if(duration >= 3) results.B += blocksToRead;
|
|
else results.A += blocksToRead;
|
|
|
|
ScanTime?.Invoke(i, duration);
|
|
mhddLog.Write(i, duration);
|
|
ibgLog.Write(i, currentSpeed * 1024);
|
|
}
|
|
else
|
|
{
|
|
ScanUnreadable?.Invoke(i);
|
|
results.Errored += blocksToRead;
|
|
for(ulong b = i; b < i + blocksToRead; b++) results.UnreadableSectors.Add(b);
|
|
|
|
mhddLog.Write(i, duration < 500 ? 65535 : duration);
|
|
|
|
ibgLog.Write(i, 0);
|
|
}
|
|
|
|
sectorSpeedStart += blocksToRead;
|
|
|
|
double elapsed = (DateTime.UtcNow - timeSpeedStart).TotalSeconds;
|
|
if(elapsed < 1) continue;
|
|
|
|
currentSpeed = sectorSpeedStart * blockSize / (1048576 * elapsed);
|
|
ScanSpeed?.Invoke(i, currentSpeed * 1024);
|
|
sectorSpeedStart = 0;
|
|
timeSpeedStart = DateTime.UtcNow;
|
|
}
|
|
|
|
end = DateTime.UtcNow;
|
|
EndProgress?.Invoke();
|
|
mhddLog.Close();
|
|
ibgLog.Close(dev, results.Blocks, blockSize, (end - start).TotalSeconds, currentSpeed * 1024,
|
|
blockSize * (double)(results.Blocks + 1) / 1024 /
|
|
(results.ProcessingTime / 1000), devicePath);
|
|
|
|
InitProgress?.Invoke();
|
|
for(int i = 0; i < SEEK_TIMES; i++)
|
|
{
|
|
if(aborted) break;
|
|
|
|
uint seekPos = (uint)rnd.Next((int)results.Blocks);
|
|
|
|
PulseProgress?.Invoke($"Seeking to sector {seekPos}...\t\t");
|
|
|
|
dev.Read(out cmdBuf, out _, seekPos, blockSize, blocksToRead, byteAddressed, TIMEOUT,
|
|
out double seekCur);
|
|
|
|
#pragma warning disable RECS0018 // Comparison of floating point numbers with equality operator
|
|
if(seekCur > results.SeekMax && seekCur != 0) results.SeekMax = seekCur;
|
|
if(seekCur < results.SeekMin && seekCur != 0) results.SeekMin = seekCur;
|
|
#pragma warning restore RECS0018 // Comparison of floating point numbers with equality operator
|
|
|
|
results.SeekTotal += seekCur;
|
|
GC.Collect();
|
|
}
|
|
|
|
EndProgress?.Invoke();
|
|
|
|
results.ProcessingTime /= 1000;
|
|
results.TotalTime = (end - start).TotalSeconds;
|
|
results.AvgSpeed = blockSize * (double)(results.Blocks + 1) / 1048576 / results.ProcessingTime;
|
|
results.SeekTimes = SEEK_TIMES;
|
|
|
|
return results;
|
|
}
|
|
}
|
|
} |