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view modules/bluespec/Pygar/core/PathTypes.bsv @ 33:2c8166d205d5 pygar svn.34

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[svn r34] uses scratchpad, set up for audio through c
author punk
date Tue, 04 May 2010 10:13:53 -0400
parents 74716e9a81cc
children 4d87fa55a776
line wrap: on
line source
     1 import Trace::*;



     2 import Vector::*;



     3 



     4 `include "asim/provides/audio_pipe_types.bsh"



     5 



     6 `define MAX_VOICES       4



     7 `define MAX_CORES       16



     8 `define MAX_PATH_IDS    18



     9 `define MAX_PATH_LENGTH 8



    10 



    11 // The path is hardwired and so should never be stored in a register.  Therefore int type rather than Bit type



    12 



    13 typedef Bit#(32) MemAddr;



    14 typedef Int#(TLog#(`MAX_PATH_IDS))  PathId;



    15 //typedef Int#(16) Sample;



    16 typedef Int#(TLog#(`MAX_VOICES)) VoiceId;



    17 typedef Bit#(8) Volume; // This is arbitrarily set to 8 bits or max val 256



    18 



    19 //The mixer is identified as PathId 0, path end is max 



    20 PathId mixerId = 0;



    21 PathId endId = `MAX_CORES+1;



    22 



    23 // Path is array of path ids



    24 typedef Vector#(`MAX_PATH_LENGTH,  PathId) CorePath;



    25 CorePath emptyCore = replicate(endId);



    26 



    27 typedef struct



    28 {



    29   VoiceId   voice;



    30   MemAddr   startAddr;



    31   CorePath  route;



    32   Volume    outVol;



    33 } FullPath deriving (Bits, Eq);



    34 



    35 typedef Maybe#(AudioProcessorUnit) AudioPipeUnit; // deriving (Bits, Eq);



    36 



    37 typedef struct



    38 {



    39   VoiceId       voice;



    40   AudioPipeUnit data;



    41 } AudioStream deriving (Bits, Eq);