// The MIT License

 

 // Copyright (c) 2009 Massachusetts Institute of Technology

 

 // 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.

 

 // Author: Kermin Fleming kfleming@mit.edu

 

 import Connectable::*;

 import GetPut::*;

 import ClientServer::*;

 import FIFO::*;

 import SpecialFIFOs::*;

 import Vector::*;

 

 //AWB includes

 `include "asim/provides/low_level_platform_interface.bsh"

 `include "asim/provides/soft_connections.bsh"

 `include "asim/provides/common_services.bsh"

 

 //Local includes

 `include "asim/provides/audio_pipe_types.bsh"  //provides Audio Pipeline interface

 `include "asim/provides/path_types.bsh"

 `include "asim/provides/core.bsh"

 `include "asim/provides/mixer.bsh"

 `include "asim/provides/processor_library.bsh"

 `include "asim/provides/fpga_components.bsh"

 `include "asim/dict/VDEV_SCRATCH.bsh"

 

 `include "asim/rrr/remote_client_stub_AUDIOCORERRR.bsh"

 `include "asim/rrr/remote_server_stub_AUDIOCORERRR.bsh"

 

 `define MAX_VOICES       2

 

 module [CONNECTED_MODULE] mkConnectedApplication ();

 

  //  Core core <- mkCore(`VDEV_SCRATCH_MEMORYA);

  //  Core anotherCore <- mkCore(`VDEV_SCRATCH_MEMORYB);

    Vector#(`MAX_VOICES, Volume) channelVols = replicate(127);

    Mixer mixer <- mkMixer(`MAX_VOICES, channelVols); //should be max voices but 2 for now

    

    Reg#(int) cycle <- mkReg(0);

    Reg#(int) sampleCount <-mkReg(0);

    Vector#(2, Reg#(Bool)) ac_fini <- replicateM(mkReg(False));

 

    // Services Samples 

    ClientStub_AUDIOCORERRR client_stub <- mkClientStub_AUDIOCORERRR();   

   

 

    //-----------------------------------------------------------

    // Debug port

    

    ServerStub_AUDIOCORERRR server_stub <- mkServerStub_AUDIOCORERRR();   

 

    // Create Cores

    Vector#(`MAX_VOICES, Core) cores;

    for (Integer n = 0; n < `MAX_VOICES; n = n + 1)

      begin

 	 case (n)

 	    0 : cores[n] <- mkCore(`VDEV_SCRATCH_MEMORYA);

 	    1 : cores[n] <- mkCore(`VDEV_SCRATCH_MEMORYB);

 	 endcase

      end

    

   // this is for the tracing

   rule printCycles;

     cycle <= cycle+1;

     $fdisplay(stderr, " => Cycle = %d", cycle);

   endrule

 

   // Send to Mixer

   // Right now this is sorta retarded in that I pass from the output fifo into a new fifo

   // But I have to mod a bunch of things to fix this and I am not sure I understand

   // things well enough to do this quickly.  So here it is as it is for now.

    rule mix;

       for (Integer i = 0; i < `MAX_VOICES; i = i + 1)

         begin

 	   let coreOut <- cores[i].sampleOutput.get();

 	   mixer.toMixer(AudioStream {voice : fromInteger(i), data: tagged Valid coreOut});

 	end

       

 //     let coreOut <- core.sampleOutput.get();

 //    mixer.toMixer(AudioStream {voice : 0, data : tagged Valid coreOut});

 //    mixer.toMixer(AudioStream {voice : 1, data : tagged Valid anotherOut});

   endrule

 

   rule feedOutput;

      let pipeOut <- mixer.mainOut.get();

      

      AudioProcessorControl endOfFileTag = EndOfFile;

      AudioProcessorControl sampleTag = Data;

 

      sampleCount <= sampleCount+1;

      

      $display("PIPE writes sample %d", sampleCount);

      case (pipeOut) matches

 	tagged EndOfFile:

 	   begin

 	      client_stub.makeRequest_SendProcessedStream(zeroExtend(pack(endOfFileTag)),?);

 	      ac_fini[0] <= True;

 	   end

        tagged Sample .sample:

 	  client_stub.makeRequest_SendProcessedStream(zeroExtend(pack(sampleTag)), zeroExtend(pack(sample)));

      endcase

   endrule

 

    // Can generally just stick with the EOF but since I have two Cores no mixer...

   /*(* conservative_implicit_conditions *)

    rule sendTerminate;

       Bool done = True;

       for (Integer i = 1; i < 2; i = i+1)

 	 done = ac_fini[i] && done;

 

       if (done)

 	 client_stub.makeRequest_SendTerminate(zeroExtend(pack(1)));

       

    endrule

 */

 

    //*****  SERVER Side  *****

 

    (* conservative_implicit_conditions *)

    rule feedInput;

      let command <- server_stub.acceptRequest_SendUnprocessedStream();

      AudioProcessorControl ctrl = unpack(truncate(command.ctrl));

 

      VoiceId channel = unpack(truncate(command.channel));

 //      $display("rlm: %x", test);

 	   

      AudioProcessorUnit inSample;

       

      if(ctrl == EndOfFile)

        begin

 	   $display("lsp: PIPE received EOF   ");

 	   inSample = tagged EndOfFile;

 //           core.sampleInput.put(tagged EndOfFile);

        end

      else 

 	begin

 //	   $display("lsp: PIPE received Data   ");

 //           core.sampleInput.put(tagged Sample unpack(truncate(command.sample)));	   

            inSample = tagged Sample unpack(truncate(command.sample));

 	end

 

       cores[channel].sampleInput.put(inSample);

       

    endrule     

 endmodule