49 lines
2.6 KiB
Scala
49 lines
2.6 KiB
Scala
// See LICENSE.SiFive for license details.
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package freechips.rocketchip.amba.apb
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import Chisel._
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import chisel3.internal.sourceinfo.SourceInfo
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import freechips.rocketchip.config.Parameters
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import freechips.rocketchip.diplomacy._
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object APBImp extends NodeImp[APBMasterPortParameters, APBSlavePortParameters, APBEdgeParameters, APBEdgeParameters, APBBundle]
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{
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def edgeO(pd: APBMasterPortParameters, pu: APBSlavePortParameters): APBEdgeParameters = APBEdgeParameters(pd, pu)
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def edgeI(pd: APBMasterPortParameters, pu: APBSlavePortParameters): APBEdgeParameters = APBEdgeParameters(pd, pu)
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def bundleO(eo: APBEdgeParameters): APBBundle = APBBundle(eo.bundle)
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def bundleI(ei: APBEdgeParameters): APBBundle = APBBundle(ei.bundle)
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def colour = "#00ccff" // bluish
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override def labelI(ei: APBEdgeParameters) = (ei.slave.beatBytes * 8).toString
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override def labelO(eo: APBEdgeParameters) = (eo.slave.beatBytes * 8).toString
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override def mixO(pd: APBMasterPortParameters, node: OutwardNode[APBMasterPortParameters, APBSlavePortParameters, APBBundle]): APBMasterPortParameters =
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pd.copy(masters = pd.masters.map { c => c.copy (nodePath = node +: c.nodePath) })
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override def mixI(pu: APBSlavePortParameters, node: InwardNode[APBMasterPortParameters, APBSlavePortParameters, APBBundle]): APBSlavePortParameters =
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pu.copy(slaves = pu.slaves.map { m => m.copy (nodePath = node +: m.nodePath) })
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}
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// Nodes implemented inside modules
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case class APBIdentityNode() extends IdentityNode(APBImp)
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case class APBMasterNode(portParams: Seq[APBMasterPortParameters]) extends SourceNode(APBImp)(portParams)
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case class APBSlaveNode(portParams: Seq[APBSlavePortParameters]) extends SinkNode(APBImp)(portParams)
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case class APBNexusNode(
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masterFn: Seq[APBMasterPortParameters] => APBMasterPortParameters,
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slaveFn: Seq[APBSlavePortParameters] => APBSlavePortParameters,
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numMasterPorts: Range.Inclusive = 1 to 1,
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numSlavePorts: Range.Inclusive = 1 to 1)
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extends NexusNode(APBImp)(masterFn, slaveFn, numMasterPorts, numSlavePorts)
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// Nodes passed from an inner module
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case class APBOutputNode() extends OutputNode(APBImp)
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case class APBInputNode() extends InputNode(APBImp)
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// Nodes used for external ports
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case class APBBlindOutputNode(portParams: Seq[APBSlavePortParameters]) extends BlindOutputNode(APBImp)(portParams)
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case class APBBlindInputNode(portParams: Seq[APBMasterPortParameters]) extends BlindInputNode(APBImp)(portParams)
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case class APBInternalOutputNode(portParams: Seq[APBSlavePortParameters]) extends InternalOutputNode(APBImp)(portParams)
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case class APBInternalInputNode(portParams: Seq[APBMasterPortParameters]) extends InternalInputNode(APBImp)(portParams)
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