Mercurial > hg > ucis.core
annotate USBLib/Communication/UsbPipeStream.cs @ 67:2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
| author | Ivo Smits <Ivo@UCIS.nl> |
|---|---|
| date | Wed, 16 Oct 2013 01:11:49 +0200 |
| parents | dcfec2be27c9 |
| children |
| rev | line source |
|---|---|
| 21 | 1 ???using System; |
| 2 using System.IO; | |
| 3 | |
| 4 namespace UCIS.USBLib.Communication { | |
| 5 public class UsbPipeStream : Stream { | |
| 6 public IUsbInterface Device { get; private set; } | |
| 7 public Byte Endpoint { get; private set; } | |
| 8 | |
|
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Simplified USB communication code, added functions to abort pipe transfers
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9 public UsbPipeStream(IUsbInterface device, Byte endpoint) { |
| 21 | 10 this.Device = device; |
| 11 this.Endpoint = endpoint; | |
| 12 } | |
| 13 | |
| 14 public override bool CanRead { | |
| 15 get { return (Endpoint & 0x80) != 0; } | |
| 16 } | |
| 17 | |
| 18 public override bool CanSeek { | |
| 19 get { return false; } | |
| 20 } | |
| 21 | |
| 22 public override bool CanWrite { | |
| 23 get { return (Endpoint & 0x80) == 0; } | |
| 24 } | |
| 25 | |
| 26 public override void Flush() { | |
| 27 } | |
| 28 | |
| 29 public override long Length { get { return 0; } } | |
| 30 | |
| 31 public override long Position { | |
| 32 get { return 0; } | |
| 33 set { throw new NotImplementedException(); } | |
| 34 } | |
| 35 | |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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36 public void Abort() { |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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37 Device.PipeAbort(Endpoint); |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
21
diff
changeset
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38 } |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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39 |
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Simplified USB communication code, added functions to abort pipe transfers
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parents:
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40 public void ClearHalt() { |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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41 Device.PipeReset(Endpoint); |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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diff
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42 } |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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43 |
| 21 | 44 public override int Read(byte[] buffer, int offset, int count) { |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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diff
changeset
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45 if (!CanRead) throw new InvalidOperationException("Can not read from an output endpoint"); |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
21
diff
changeset
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46 return Device.PipeTransfer(Endpoint, buffer, offset, count); |
| 21 | 47 } |
| 48 | |
| 49 public override long Seek(long offset, SeekOrigin origin) { | |
| 50 throw new NotImplementedException(); | |
| 51 } | |
| 52 | |
| 53 public override void SetLength(long value) { | |
| 54 throw new NotImplementedException(); | |
| 55 } | |
| 56 | |
| 57 public override void Write(byte[] buffer, int offset, int count) { | |
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Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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changeset
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58 if (!CanWrite) throw new InvalidOperationException("Can not write to an input endpoint"); |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
21
diff
changeset
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59 int written = Device.PipeTransfer(Endpoint, buffer, offset, count); |
| 21 | 60 if (written != count) throw new EndOfStreamException("Could not write all data"); |
| 61 } | |
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Simplified USB communication code, added functions to abort pipe transfers
Ivo Smits <Ivo@UCIS.nl>
parents:
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62 |
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Simplified USB communication code, added functions to abort pipe transfers
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63 protected override void Dispose(bool disposing) { |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
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parents:
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64 if (disposing) try { Abort(); } catch { } |
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2d16447eff12
Simplified USB communication code, added functions to abort pipe transfers
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parents:
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65 base.Dispose(disposing); |
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Simplified USB communication code, added functions to abort pipe transfers
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parents:
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66 } |
| 21 | 67 } |
| 68 } |