memory_utils.hpp

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//  *
//  *                       cloudFPGA
//  *    =============================================
//  *     Created: Aug 2019
//  *     Authors: FAB, WEI, NGL
//  *
//  *     Description:
//  *        This file contains memory types and functions that are shared accross HLS cores. 
//  *
//  *
 
#ifndef _CF_MEMORY_UTILS_
#define _CF_MEMORY_UTILS_
 
#include <stdio.h>
#include <iostream>
#include <fstream>
#include <string>
#include <math.h>
#include <hls_stream.h>
#include <stdint.h>
#include <vector>
 
#include "ap_int.h"
 
using namespace hls;
 
 
 
#define RXMEMBUF    65536   // 64KB = 2^16
#define TXMEMBUF    65536   // 64KB = 2^16
 
 
class DmCmd
{
  public:
    ap_uint<23>     bbt;    // Bytes To Transfer
    ap_uint<1>      type;   // Type of AXI4 access (0=FIXED, 1=INCR)
    ap_uint<6>      dsa;    // DRE Stream Alignment
    ap_uint<1>      eof;    // End of Frame
    ap_uint<1>      drr;    // DRE ReAlignment Request
    ap_uint<40>     saddr;  // Start Address
    ap_uint<4>      tag;    // Command Tag
    ap_uint<4>      rsvd;   // Reserved
    DmCmd() {}
    DmCmd(ap_uint<40> addr, ap_uint<16> len) :
      bbt(len), type(1), dsa(0), eof(1), drr(1), saddr(addr), tag(0), rsvd(0) {}
};
 
struct mmCmd
{
  ap_uint<23> bbt;
  ap_uint<1>  type;
  ap_uint<6>  dsa;
  ap_uint<1>  eof;
  ap_uint<1>  drr;
  ap_uint<40> saddr;
  ap_uint<4>  tag;
  ap_uint<4>  rsvd;
  mmCmd() {}
  mmCmd(ap_uint<40> addr, ap_uint<16> len) :
    bbt(len), type(1), dsa(0), eof(1), drr(1), saddr(addr), tag(0), rsvd(0) {}
 
};
 
 
class DmSts
{
  public:
    ap_uint<4>      tag;
    ap_uint<1>      interr;
    ap_uint<1>      decerr;
    ap_uint<1>      slverr;
    ap_uint<1>      okay;
    DmSts() {}
};
 
struct mmStatus
{
  ap_uint<4>  tag;
  ap_uint<1>  interr;
  ap_uint<1>  decerr;
  ap_uint<1>  slverr;
  ap_uint<1>  okay;
};
 
//TODO is this required??
struct mm_ibtt_status
{
  ap_uint<4>  tag;
  ap_uint<1>  interr;
  ap_uint<1>  decerr;
  ap_uint<1>  slverr;
  ap_uint<1>  okay;
  ap_uint<22> brc_vd;
  ap_uint<1>  eop;
};
 
 
#endif