Subversion Repositories bluespec-80211atransmitter

// The MIT License

//

// Copyright (c) 2006 Nirav Dave (ndave@csail.mit.edu)

//

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to deal

// in the Software without restriction, including without limitation the rights

// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

// copies of the Software, and to permit persons to whom the Software is

// furnished to do so, subject to the following conditions:

//

// The above copyright notice and this permission notice shall be included in

// all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

// THE SOFTWARE.

import ComplexF::*;

import DataTypes::*;

import Interfaces::*;

import LibraryFunctions::*;

import Vector::*;

import FIFO::*;

(* synthesize *)

module mkCyclicExtender(CyclicExtender#(64,81));

   FIFO#(MsgComplexFVec#(64)) fifoQ <- mkLFIFO();

   method Action fromIFFT(MsgComplexFVec#(64) x);

      fifoQ.enq(x);

   endmethod

   method ActionValue#(MsgComplexFVec#(81)) toAnalogTX();

     fifoQ.deq();

     Vector#(64, ComplexF#(16))       v = (fifoQ.first().data);

     Vector#(1 , ComplexF#(16))    last = v_truncate(v);

     Vector#(16, ComplexF#(16))  prefix = v_rtruncate(v);

     return MsgComplexFVec{

               new_message : True,

               data        : Vector::append(Vector::append(last,v),prefix)

        };

   endmethod

endmodule