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Corrected byte addressing for MMC/SD.

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This commit is contained in:
Natalia Portillo
2017-09-29 12:49:08 +00:00
parent 74e4dadbdc
commit efb7331a98
2 changed files with 16 additions and 6 deletions
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11
DiscImageChef.Core/Devices/Dumping/SecureDigital.cs
View File

@@ -94,6 +94,7 @@ namespace DiscImageChef.Core.Devices.Dumping
byte[] scr = null;
uint[] response;
int physicalBlockSize = 0;
bool byteAddressed = true;
if(dev.Type == DeviceType.MMC)
{
@@ -111,6 +112,8 @@ namespace DiscImageChef.Core.Devices.Dumping
physicalBlockSize = 512;
else if(ecsdDecoded.NativeSectorSize == 1)
physicalBlockSize = 4096;
// Supposing it's high-capacity MMC if it has Extended CSD...
byteAddressed = false;
}
else
ecsd = null;
@@ -142,6 +145,8 @@ namespace DiscImageChef.Core.Devices.Dumping
csdDecoded = Decoders.SecureDigital.Decoders.DecodeCSD(csd);
blocks = (ulong)(csdDecoded.Structure == 0 ? (csdDecoded.Size + 1) * Math.Pow(2, csdDecoded.SizeMultiplier + 2) : (csdDecoded.Size + 1) * 1024);
blockSize = (uint)Math.Pow(2, csdDecoded.ReadBlockLength);
// Structure >=1 for SDHC/SDXC, so that's block addressed
byteAddressed = csdDecoded.Structure == 0;
}
else
csd = null;
@@ -243,7 +248,7 @@ namespace DiscImageChef.Core.Devices.Dumping
while(true)
{
error = dev.Read(out cmdBuf, out response, 0, blockSize, blocksToRead, false, timeout, out duration);
error = dev.Read(out cmdBuf, out response, 0, blockSize, blocksToRead, byteAddressed, timeout, out duration);
if(error)
blocksToRead /= 2;
@@ -295,7 +300,7 @@ namespace DiscImageChef.Core.Devices.Dumping
DicConsole.Write("\rReading sector {0} of {1} ({2:F3} MiB/sec.)", i, blocks, currentSpeed);
error = dev.Read(out cmdBuf, out response, (uint)i, blockSize, blocksToRead, false, timeout, out duration);
error = dev.Read(out cmdBuf, out response, (uint)i, blockSize, blocksToRead, byteAddressed, timeout, out duration);
if(!error)
{
@@ -350,7 +355,7 @@ namespace DiscImageChef.Core.Devices.Dumping
DicConsole.Write("\rRetrying sector {0}, pass {1}, {3}{2}", badSector, pass + 1, forward ? "forward" : "reverse", runningPersistent ? "recovering partial data, " : "");
error = dev.Read(out cmdBuf, out response, (uint)badSector, blockSize, 1, false, timeout, out duration);
error = dev.Read(out cmdBuf, out response, (uint)badSector, blockSize, 1, byteAddressed, timeout, out duration);
totalDuration += duration;

11
DiscImageChef.Core/Devices/Scanning/SecureDigital.cs
View File

@@ -61,6 +61,7 @@ namespace DiscImageChef.Core.Devices.Scanning
ushort currentProfile = 0x0001;
uint blocksToRead = 1;
uint blockSize = 512;
bool byteAddressed = true;
if(dev.Type == DeviceType.MMC)
{
@@ -74,6 +75,8 @@ namespace DiscImageChef.Core.Devices.Scanning
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)
@@ -97,6 +100,8 @@ namespace DiscImageChef.Core.Devices.Scanning
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;
}
}
@@ -110,7 +115,7 @@ namespace DiscImageChef.Core.Devices.Scanning
while(true)
{
sense = dev.Read(out cmdBuf, out response, 0, blockSize, blocksToRead, false, timeout, out duration);
sense = dev.Read(out cmdBuf, out response, 0, blockSize, blocksToRead, byteAddressed, timeout, out duration);
if(sense)
blocksToRead /= 2;
@@ -180,7 +185,7 @@ namespace DiscImageChef.Core.Devices.Scanning
DicConsole.Write("\rReading sector {0} of {1} ({2:F3} MiB/sec.)", i, results.blocks, currentSpeed);
bool error = dev.Read(out cmdBuf, out response, (uint)i, blockSize, blocksToRead, false, timeout, out duration);
bool error = dev.Read(out cmdBuf, out response, (uint)i, blockSize, blocksToRead, byteAddressed, timeout, out duration);
if(!error)
{
@@ -246,7 +251,7 @@ namespace DiscImageChef.Core.Devices.Scanning
DicConsole.Write("\rSeeking to sector {0}...\t\t", seekPos);
dev.Read(out cmdBuf, out response, (uint)seekPos, blockSize, blocksToRead, false, timeout, out seekCur);
dev.Read(out cmdBuf, out response, (uint)seekPos, blockSize, blocksToRead, byteAddressed, timeout, out seekCur);
#pragma warning disable RECS0018 // Comparison of floating point numbers with equality operator
if(seekCur > results.seekMax && seekCur != 0)