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authorJim Lawson2016-08-18 12:35:34 -0700
committerJim Lawson2016-08-18 12:35:34 -0700
commitd18274e307271809db2c27676f1dca40a49c9627 (patch)
tree2632a0e409bea3f9069c5ebfb555cc1ec04caa4f /src/main/scala/chisel3/util/Valid.scala
parentddb7278760029be9d960ba8bf2b06ac8a8aac767 (diff)
parent7922f8d4998dd902ee18a6e85e4a404a1f29eb3f (diff)
Merge branch 'sdtwigg_connectwrap_renamechisel3' into gsdt_tests
Revive support for firrtl flip direction. Remove compileOptions.internalConnectionToInputOk
Diffstat (limited to 'src/main/scala/chisel3/util/Valid.scala')
-rw-r--r--src/main/scala/chisel3/util/Valid.scala30
1 files changed, 14 insertions, 16 deletions
diff --git a/src/main/scala/chisel3/util/Valid.scala b/src/main/scala/chisel3/util/Valid.scala
index 78187ff6..743038f3 100644
--- a/src/main/scala/chisel3/util/Valid.scala
+++ b/src/main/scala/chisel3/util/Valid.scala
@@ -7,20 +7,18 @@ package chisel3.util
import chisel3._
-/** An I/O Bundle containing data and a signal determining if it is valid */
-class ValidIO[+T <: Data](gen2: T) extends Bundle
+/** An Bundle containing data and a signal determining if it is valid */
+class Valid[+T <: Data](gen: T) extends Bundle
{
- val valid = Bool(OUTPUT)
- val bits = gen2.cloneType.asOutput
+ val valid = Output(Bool())
+ val bits = Output(gen.chiselCloneType)
def fire(dummy: Int = 0): Bool = valid
- override def cloneType: this.type = new ValidIO(gen2).asInstanceOf[this.type]
+ override def cloneType: this.type = Valid(gen).asInstanceOf[this.type]
}
-/** Adds a valid protocol to any interface. The standard used is
- that the consumer uses the flipped interface.
-*/
+/** Adds a valid protocol to any interface */
object Valid {
- def apply[T <: Data](gen: T): ValidIO[T] = new ValidIO(gen)
+ def apply[T <: Data](gen: T): Valid[T] = new Valid(gen)
}
/** A hardware module that delays data coming down the pipeline
@@ -34,7 +32,7 @@ object Valid {
*/
object Pipe
{
- def apply[T <: Data](enqValid: Bool, enqBits: T, latency: Int): ValidIO[T] = {
+ def apply[T <: Data](enqValid: Bool, enqBits: T, latency: Int): Valid[T] = {
if (latency == 0) {
val out = Wire(Valid(enqBits))
out.valid <> enqValid
@@ -46,16 +44,16 @@ object Pipe
apply(v, b, latency-1)
}
}
- def apply[T <: Data](enqValid: Bool, enqBits: T): ValidIO[T] = apply(enqValid, enqBits, 1)
- def apply[T <: Data](enq: ValidIO[T], latency: Int = 1): ValidIO[T] = apply(enq.valid, enq.bits, latency)
+ def apply[T <: Data](enqValid: Bool, enqBits: T): Valid[T] = apply(enqValid, enqBits, 1)
+ def apply[T <: Data](enq: Valid[T], latency: Int = 1): Valid[T] = apply(enq.valid, enq.bits, latency)
}
class Pipe[T <: Data](gen: T, latency: Int = 1) extends Module
{
- val io = new Bundle {
- val enq = Valid(gen).flip
- val deq = Valid(gen)
- }
+ val io = IO(new Bundle {
+ val enq = Input(Valid(gen))
+ val deq = Output(Valid(gen))
+ })
io.deq <> Pipe(io.enq, latency)
}