sobel.hpp

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#ifndef _ROLE_SOBEL_H_
#define _ROLE_SOBEL_H_
 
#include <stdio.h>
#include <iostream>
#include <fstream>
#include <string>
#include <math.h>
#include <hls_stream.h>
#include "ap_int.h"
#include <stdint.h>
#include "network.hpp"
#include "memory_utils.hpp"
 
using namespace hls;
 
// Define this option to load data from network to DDR memory before calling the kernel.
#define ENABLE_DDR
 
 
enum EchoCtrl {
    ECHO_PATH_THRU  = 0,
    ECHO_STORE_FWD  = 1,
    ECHO_OFF    = 2
};
 
#define ROLE_IS_SOBEL
 
#define WAIT_FOR_META             0
#define WAIT_FOR_STREAM_PAIR      1
#define PROCESSING_PACKET         2
#define LOAD_IN_STREAM            3
#define SOBEL_RETURN_RESULTS     4
#define SOBEL_RETURN_RESULTS_ABSORB_DDR_LAT 5
#define SOBEL_RETURN_RESULTS_UNPACK 6
#define SOBEL_RETURN_RESULTS_FWD 7
#define WAIT_FOR_TX               8
#define FSM_IDLE                    9
#define FSM_CHK_SKIP                10
#define FSM_CHK_PROC_BYTES          11
#define FSM_CHK_WRT_CHNK_TO_DDR_PND 12
#define FSM_WR_PAT_CMD              13
#define FSM_WR_PAT_LOAD             14
#define FSM_WR_PAT_DATA             15
#define FSM_WR_PAT_STS_A            16
#define FSM_WR_PAT_STS_B            17
#define FSM_WR_PAT_STS_C            18
#define PacketFsmType uint8_t
 
 
#define DEFAULT_TX_PORT 2718
#define DEFAULT_RX_PORT 2718
 
#define Data_t_in  ap_axiu<INPUT_PTR_WIDTH, 0, 0, 0>
#define Data_t_out ap_axiu<OUTPUT_PTR_WIDTH, 0, 0, 0>
 
 
#define MAX_NB_OF_ELMT_READ  16
typedef uint8_t  mat_elmt_t;    // change to float or double depending on your needs
 
#define MAX_NB_OF_WORDS_READ    (MAX_NB_OF_ELMT_READ*sizeof(mat_elmt_t)/BPERDW) // =2 if double =1 if float
#define MAX_NB_OF_ELMT_PERDW    (BPERDW/sizeof(mat_elmt_t)) // =8 if double =16 if float
 
 
//------------------------------------ Declarations for DDR ----------------------------------------
 
/* General memory Data Width is set as a parameter*/
/* 52-bit host AXI data width*/
#define MEMDW_512 512               // 512 Bus width in bits for cF DDR memory
#define BPERMDW_512 (MEMDW_512/8)   // Bytes per DDR Memory Data Word,  if MEMDW=512 => BPERMDW_512 = 64
#define KWPERMDW_512 (BPERMDW_512/sizeof(TYPE)) // Number of Sobel kernel words per DDR memory word
typedef ap_uint<MEMDW_512>  membus_512_t;   /* 512-bit ddr memory access */
typedef membus_512_t membus_t;
#define TOTMEMDW_512 (1 + (IMGSIZE - 1) / BPERMDW_512)
 
 
#define CHECK_CHUNK_SIZE 0x1000 
#define BYTE_PER_MEM_WORD BPERMDW_512 // 64
#define TRANSFERS_PER_CHUNK (CHECK_CHUNK_SIZE/BYTE_PER_MEM_WORD) //64
#define TRANSFERS_PER_CHUNK_DIVEND (TOTMEMDW_512-(TOTMEMDW_512/TRANSFERS_PER_CHUNK)*TRANSFERS_PER_CHUNK)
 
 
#define fsmStateDDRdef uint8_t
 
// The maximum number of cycles allowed to acknowledge a write to DDR (i.e. read the status stream)
#define CYCLES_UNTIL_TIMEOUT 0x0100
#define TYPICAL_DDR_LATENCY 4
// The latency cycles of cF DDR. We've measured 52, but experimentally we take it if we divide by 
// 4.769230769, taking into account the II=2 and the latency of the FSM
#define DDR_LATENCY (52/4)
#define EXTRA_DDR_LATENCY_DUE_II (64 + 8) // 8 is the write from input stream to local stream, 64 is read from local stream to DDR
/*
 * A generic unsigned AXI4-Stream interface used all over the cloudFPGA place.
 */
//Consider using axi_utils.hpp header? 
// though some difference in the init
template<int D>
struct Axis {
  ap_uint<D>       tdata;
  ap_uint<(D+7)/8> tkeep;
  ap_uint<1>       tlast;
  Axis() {}
  Axis(ap_uint<D> single_data) : tdata((ap_uint<D>)single_data), tkeep(1), tlast(1) {}
};
 
void sobel(
 
    ap_uint<32>             *pi_rank,
    ap_uint<32>             *pi_size,
    //------------------------------------------------------
    //-- SHELL / This / Udp/TCP Interfaces
    //------------------------------------------------------
    stream<NetworkWord>         &siSHL_This_Data,
    stream<NetworkWord>         &soTHIS_Shl_Data,
    stream<NetworkMetaStream>   &siNrc_meta,
    stream<NetworkMetaStream>   &soNrc_meta,
    ap_uint<32>                 *po_rx_ports
    
    #ifdef ENABLE_DDR
                                            ,
    //------------------------------------------------------
    //-- SHELL / Role / Mem / Mp0 Interface
    //------------------------------------------------------
    //---- Read Path (MM2S) ------------
    // stream<DmCmd>               &soMemRdCmdP0,
    // stream<DmSts>               &siMemRdStsP0,
    // stream<Axis<MEMDW_512 > >   &siMemReadP0,
    //---- Write Path (S2MM) -----------
    stream<DmCmd>               &soMemWrCmdP0,
    stream<DmSts>               &siMemWrStsP0,
    stream<Axis<MEMDW_512> >    &soMemWriteP0,
    //------------------------------------------------------
    //-- SHELL / Role / Mem / Mp1 Interface
    //------------------------------------------------------             
    membus_t   *lcl_mem0,
    membus_t   *lcl_mem1
    #endif
);
 
 
#endif