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subsystem: more buswrapper coupling methods

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This commit is contained in:
Henry Cook
2018-02-22 23:45:21 -08:00
parent 78883d13e8
commit 099bbec666
5 changed files with 120 additions and 87 deletions
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22
src/main/scala/tilelink/BusWrapper.scala
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@ -29,6 +29,28 @@ abstract class TLBusWrapper(params: HasTLBusParams, val busName: String)(implici
protected def inwardNode: TLInwardNode
protected def outwardNode: TLOutwardNode
protected def bufferFrom(buffer: BufferParams): TLInwardNode =
inwardNode :=* TLBuffer(buffer)
protected def bufferFrom(buffers: Int): TLInwardNode =
TLBuffer.chain(buffers).foldLeft(inwardNode)(_ :=* _)
protected def bufferTo(buffer: BufferParams): TLOutwardNode =
TLBuffer(buffer) :*= delayNode :*= outwardNode
protected def bufferTo(buffers: Int): TLOutwardNode =
TLBuffer.chain(buffers).foldRight(delayNode)(_ :*= _) :*= outwardNode
protected def fixedWidthTo(buffer: BufferParams): TLOutwardNode =
TLWidthWidget(beatBytes) :*= bufferTo(buffer)
protected def fragmentTo(buffer: BufferParams): TLOutwardNode =
TLFragmenter(beatBytes, blockBytes) :*= bufferTo(buffer)
protected def fragmentTo(minSize: Int, maxSize: Int, buffer: BufferParams): TLOutwardNode =
TLFragmenter(minSize, maxSize) :*= bufferTo(buffer)
protected def delayNode(implicit p: Parameters): TLNode = {
val delayProb = p(TLBusDelayProbability)
if (delayProb > 0.0) {