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sifive-blocks/src/main/scala/devices/gpio/GPIOPins.scala

29 lines
904 B
Scala

// See LICENSE for license details.
package sifive.blocks.devices.gpio
import Chisel._
import sifive.blocks.devices.pinctrl.{Pin}
// While this is a bit pendantic, it keeps the GPIO
// device more similar to the other devices. It's not 'special'
// even though it looks like something that more directly talks to
// a pin. It also makes it possible to change the exact
// type of pad this connects to.
class GPIOSignals[T <: Data](private val pingen: () => T, private val c: GPIOParams) extends Bundle {
val pins = Vec(c.width, pingen())
}
class GPIOPins[T <: Pin](pingen: () => T, c: GPIOParams) extends GPIOSignals[T](pingen, c)
object GPIOPinsFromPort {
def apply[T <: Pin](pins: GPIOSignals[T], port: GPIOPortIO){
// This will just match up the components of the Bundle that
// exist in both.
(pins.pins zip port.pins) foreach {case (pin, port) =>
pin <> port
}
}
}