X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmain%2Fscala%2Fdevices%2Fspi%2FSPIPins.scala;h=e380bf90626276fdab006a9542a943e0acd362ca;hb=81e301f9f75bfdb495d72951f33cada08786d83a;hp=4307fadbd71a455cd43500eb2ff81dbed429cd68;hpb=2139ab0d98a72072d3ab6116ab55b9e90b26cabe;p=sifive-blocks.git diff --git a/src/main/scala/devices/spi/SPIPins.scala b/src/main/scala/devices/spi/SPIPins.scala index 4307fad..e380bf9 100644 --- a/src/main/scala/devices/spi/SPIPins.scala +++ b/src/main/scala/devices/spi/SPIPins.scala @@ -5,7 +5,7 @@ import Chisel._ import chisel3.experimental.{withClockAndReset} import sifive.blocks.devices.pinctrl.{PinCtrl, Pin} -class SPIPins[T <: Pin] (pingen: ()=> T, c: SPIParamsBase) extends SPIBundle(c) { +class SPISignals[T <: Data] (pingen: ()=> T, c: SPIParamsBase) extends SPIBundle(c) { val sck = pingen() val dq = Vec(4, pingen()) @@ -14,20 +14,26 @@ class SPIPins[T <: Pin] (pingen: ()=> T, c: SPIParamsBase) extends SPIBundle(c) override def cloneType: this.type = this.getClass.getConstructors.head.newInstance(pingen, c).asInstanceOf[this.type] - def fromSPIPort(spi: SPIPortIO, clock: Clock, reset: Bool, +} + +class SPIPins[T <: Pin] (pingen: ()=> T, c: SPIParamsBase) extends SPISignals(pingen, c) + +object SPIPinsFromPort { + + def apply[T <: Pin](pins: SPISignals[T], spi: SPIPortIO, clock: Clock, reset: Bool, syncStages: Int = 0, driveStrength: Bool = Bool(false)) { withClockAndReset(clock, reset) { - sck.outputPin(spi.sck, ds = driveStrength) + pins.sck.outputPin(spi.sck, ds = driveStrength) - (dq zip spi.dq).foreach {case (p, s) => + (pins.dq zip spi.dq).foreach {case (p, s) => p.outputPin(s.o, pue = Bool(true), ds = driveStrength) p.o.oe := s.oe p.o.ie := ~s.oe s.i := ShiftRegister(p.i.ival, syncStages) } - (cs zip spi.cs) foreach { case (c, s) => + (pins.cs zip spi.cs) foreach { case (c, s) => c.outputPin(s, ds = driveStrength) } }