network_utils.cpp File Reference

#include <stdint.h>
#include "ap_int.h"
#include "ap_utils.h"
#include <hls_stream.h>
#include <queue>
#include <string>
#include "network_utils.hpp"
#include "NTS/AxisRaw.hpp"

Include dependency graph for network_utils.cpp:

Go to the source code of this file.

Macros
#define	UINT8   ap_uint<8>
#define	UINT32   ap_uint<32>

Functions
ap_uint< 32 >	bigEndianToInteger (ap_uint< 8 > *buffer, int lsb)
void	integerToBigEndian (ap_uint< 32 > n, ap_uint< 8 > *bytes)
ap_uint< 4 >	keepToLen (ap_uint< 8 > keepValue)
	Swap the two bytes of a word (.i.e, 16 bits). More...
ap_uint< 8 >	lenToKeep (ap_uint< 4 > noValidBytes)
	Returns the 'tkeep' field of an AxiWord as a function of the number of valid bytes in that word. More...

Macro Definition Documentation

UINT32

#define UINT32   ap_uint<32>

Definition at line 39 of file network_utils.cpp.

UINT8

#define UINT8   ap_uint<8>

Copyright 2016 – 2021 IBM Corporation

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Definition at line 38 of file network_utils.cpp.

Function Documentation

bigEndianToInteger()

ap_uint<32> bigEndianToInteger	(	ap_uint< 8 > *	buffer,
		int	lsb
	)

Definition at line 41 of file network_utils.cpp.

{
  UINT32 tmp = 0;
  tmp  = ((UINT32) buffer[lsb + 0]); 
  tmp |= ((UINT32) buffer[lsb + 1]) << 8; 
  tmp |= ((UINT32) buffer[lsb + 2]) << 16; 
  tmp |= ((UINT32) buffer[lsb + 3]) << 24; 
 
  //printf("LSB: %#1x, return: %#04x\n",(UINT8) buffer[lsb + 3], (UINT32) tmp);
 
  return tmp;
}

integerToBigEndian()

void integerToBigEndian	(	ap_uint< 32 >	n,
		ap_uint< 8 > *	bytes
	)

Definition at line 54 of file network_utils.cpp.

{
  bytes[3] = (n >> 24) & 0xFF;
  bytes[2] = (n >> 16) & 0xFF;
  bytes[1] = (n >> 8) & 0xFF;
  bytes[0] = n & 0xFF;
}

keepToLen()

ap_uint<4> keepToLen

(

ap_uint< 8 >

keepValue

)

Swap the two bytes of a word (.i.e, 16 bits).

Parameters

[in]

inpWord,the

16-bit unsigned data to swap.

Returns

a 16-bit unsigned data.

Swap the four bytes of a double-word (.i.e, 32 bits).

Parameters

[in]

inpDWord,a

32-bit unsigned data.

Returns

a 32-bit unsigned data.

Returns the number of valid bytes in an AxiWord.

Parameters

[in]

The

'tkeep' field of the AxiWord.

Definition at line 94 of file network_utils.cpp.

                                           {
  ap_uint<4> count = 0;
  switch(keepValue){
    case 0x01: count = 1; break;
    case 0x03: count = 2; break;
    case 0x07: count = 3; break;
    case 0x0F: count = 4; break;
    case 0x1F: count = 5; break;
    case 0x3F: count = 6; break;
    case 0x7F: count = 7; break;
    case 0xFF: count = 8; break;
  }
  return count;
}

lenToKeep()

ap_uint<8> lenToKeep

(

ap_uint< 4 >

noValidBytes

)

Returns the 'tkeep' field of an AxiWord as a function of the number of valid bytes in that word.

Parameters

[in]

The

number of valid bytes in an AxiWord.

Definition at line 114 of file network_utils.cpp.

                                              {
  ap_uint<8> keep = 0;
 
  switch(noValidBytes) {
    case 1: keep = 0x01; break;
    case 2: keep = 0x03; break;
    case 3: keep = 0x07; break;
    case 4: keep = 0x0F; break;
    case 5: keep = 0x1F; break;
    case 6: keep = 0x3F; break;
    case 7: keep = 0x7F; break;
    case 8: keep = 0xFF; break;
  }
  return keep;
}