src/main/scala/devices/gpio/GPIOPins.scala

   1 // See LICENSE for license details.
   2 package sifive.blocks.devices.gpio
   3
   4 import Chisel._
   5 import sifive.blocks.devices.pinctrl.{Pin}
   6
   7 // While this is a bit pendantic, it keeps the GPIO
   8 // device more similar to the other devices. It's not 'special'
   9 // even though it looks like something that more directly talks to
  10 // a pin. It also makes it possible to change the exact
  11 // type of pad this connects to.
  12 class GPIOSignals[T <: Data] (pingen: ()=> T,  c: GPIOParams) extends Bundle {
  13   val pins = Vec(c.width, pingen())
  14 }
  15
  16 class GPIOPins[T <: Pin] (pingen: ()=> T,  c: GPIOParams) extends GPIOSignals[T](pingen, c)
  17
  18 object GPIOPinsFromPort {
  19
  20   def apply[T <: Pin](pins: GPIOSignals[T], port: GPIOPortIO){
  21
  22     // This will just match up the components of the Bundle that
  23     // exist in both.
  24     (pins.pins zip port.pins) foreach {case (pin, port) =>
  25       pin <> port
  26     }
  27   }
  28 }