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Add MMC/SD command to send SET_BLOCK_COUNT, READ_MULTIPLE_BLOCK and STOP_TRANSMISSION in a single call.

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Natalia Portillo
2020-12-12 21:03:44 +00:00
parent 5e39e581ef
commit a026b525a2
3 changed files with 205 additions and 35 deletions
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58
Aaru.Devices/Device/MmcCommands/MMC.cs
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@@ -243,5 +243,63 @@ namespace Aaru.Devices
return sense;
}
public bool ReadWithBlockCount(out byte[] buffer, out uint[] response, uint lba, uint blockSize,
ushort transferLength, bool byteAddressed, uint timeout, out double duration)
{
uint address = byteAddressed ? lba * blockSize : lba;
MmcSingleCommand[] commands = new MmcSingleCommand[3];
// SET_BLOCK_COUNT
commands[0] = new MmcSingleCommand
{
command = MmcCommands.SetBlockCount,
write = false,
isApplication = false,
flags = MmcFlags.ResponseSpiR1 | MmcFlags.ResponseR1 | MmcFlags.CommandAc,
argument = transferLength,
blockSize = 0,
blocks = 0,
buffer = new byte[0]
};
// READ_MULTIPLE_BLOCK
commands[1] = new MmcSingleCommand
{
command = MmcCommands.ReadMultipleBlock,
write = false,
isApplication = false,
flags = MmcFlags.ResponseSpiR1 | MmcFlags.ResponseR1 | MmcFlags.CommandAdtc,
argument = address,
blockSize = blockSize,
blocks = transferLength,
buffer = new byte[transferLength * blockSize]
};
// STOP_TRANSMISSION
// Needed if the previous command fails
commands[2] = new MmcSingleCommand
{
command = MmcCommands.StopTransmission,
write = false,
isApplication = false,
flags = MmcFlags.ResponseSpiR1B | MmcFlags.ResponseR1B | MmcFlags.CommandAc,
argument = 0,
blockSize = 0,
blocks = 0,
buffer = new byte[0]
};
LastError = SendMultipleMmcCommands(commands, out duration, out bool sense, timeout);
Error = LastError != 0;
AaruConsole.DebugWriteLine("SecureDigital Device", "READ_MULTIPLE_BLOCK took {0} ms.", duration);
buffer = commands[1].buffer;
response = commands[1].response;
return sense;
}
}
}