| Line 46... |
Line 46... |
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
--
|
--
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
library ieee;
|
library ieee;
|
use ieee.std_logic_1164.all;
|
use ieee.std_logic_1164.all;
|
use work.rio_common.all;
|
use ieee.numeric_std.all;
|
|
use ieee.math_real.all;
|
use std.textio.all;
|
use std.textio.all;
|
|
use work.rio_common.all;
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
--
|
--
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
package TestPortPackage is
|
package TestPortPackage is
|
|
-----------------------------------------------------------------------------
|
|
-- Types used in simulations.
|
|
-----------------------------------------------------------------------------
|
|
type ByteArray is array (natural range <>) of
|
|
std_logic_vector(7 downto 0);
|
|
type HalfwordArray is array (natural range <>) of
|
|
std_logic_vector(15 downto 0);
|
|
type WordArray is array (natural range <>) of
|
|
std_logic_vector(31 downto 0);
|
|
type DoublewordArray is array (natural range <>) of
|
|
std_logic_vector(63 downto 0);
|
|
|
|
-- Type defining a RapidIO frame.
|
|
type RioFrame is record
|
|
length : natural range 0 to 69;
|
|
payload : WordArray(0 to 68);
|
|
end record;
|
|
type RioFrameArray is array (natural range <>) of RioFrame;
|
|
|
|
-- Type defining a RapidIO payload.
|
|
type RioPayload is record
|
|
length : natural range 0 to 133;
|
|
data : HalfwordArray(0 to 132);
|
|
end record;
|
|
|
|
-----------------------------------------------------------------------------
|
|
--
|
|
-----------------------------------------------------------------------------
|
|
|
constant ADDRESS_WIDTH_MAX : natural := 64;
|
constant ADDRESS_WIDTH_MAX : natural := 64;
|
constant DATA_WIDTH_MAX : natural := 64;
|
constant DATA_WIDTH_MAX : natural := 64;
|
constant SEL_WIDTH_MAX : natural := 8;
|
constant SEL_WIDTH_MAX : natural := 8;
|
|
|
type TestPortMessageWishbone is record
|
type TestPortMessageWishbone is record
|
| Line 178... |
Line 209... |
|
|
---------------------------------------------------------------------------
|
---------------------------------------------------------------------------
|
-- Procedures for test control.
|
-- Procedures for test control.
|
---------------------------------------------------------------------------
|
---------------------------------------------------------------------------
|
|
|
|
procedure TestSpec(constant str : string);
|
|
procedure TestCaseStart(constant str : string);
|
|
|
procedure TestWarning(constant tag : in string);
|
procedure TestWarning(constant tag : in string);
|
procedure TestError(constant tag : in string;
|
procedure TestError(constant tag : in string;
|
constant stopAtError : in boolean := true);
|
constant stopAtError : in boolean := true);
|
procedure TestCompare(constant expression : in boolean;
|
procedure TestCompare(constant expression : in boolean;
|
constant tag : in string := "";
|
constant tag : in string := "";
|
| Line 215... |
Line 249... |
constant waitTime : in time := 1 ms;
|
constant waitTime : in time := 1 ms;
|
constant stopAtError : in boolean := true);
|
constant stopAtError : in boolean := true);
|
|
|
procedure TestEnd;
|
procedure TestEnd;
|
|
|
|
-----------------------------------------------------------------------------
|
|
--
|
|
-----------------------------------------------------------------------------
|
|
|
|
-----------------------------------------------------------------------------
|
|
-- Crc5 calculation function.
|
|
-- ITU, polynom=0x15.
|
|
-----------------------------------------------------------------------------
|
|
function Crc5(constant data : in std_logic_vector(18 downto 0);
|
|
constant crc : in std_logic_vector(4 downto 0))
|
|
return std_logic_vector;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a RapidIO physical layer control symbol.
|
|
---------------------------------------------------------------------------
|
|
function RioControlSymbolCreate(
|
|
constant stype0 : in std_logic_vector(2 downto 0);
|
|
constant parameter0 : in std_logic_vector(4 downto 0);
|
|
constant parameter1 : in std_logic_vector(4 downto 0);
|
|
constant stype1 : in std_logic_vector(2 downto 0);
|
|
constant cmd : in std_logic_vector(2 downto 0))
|
|
return std_logic_vector;
|
|
|
|
-----------------------------------------------------------------------------
|
|
-- Crc16 calculation function.
|
|
-- CITT, polynom=0x1021.
|
|
-----------------------------------------------------------------------------
|
|
function Crc16(constant data : in std_logic_vector(15 downto 0);
|
|
constant crc : in std_logic_vector(15 downto 0))
|
|
return std_logic_vector;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a randomly initialized data array.
|
|
---------------------------------------------------------------------------
|
|
procedure CreateRandomPayload(
|
|
variable payload : out HalfwordArray;
|
|
variable seed1 : inout positive;
|
|
variable seed2 : inout positive);
|
|
procedure CreateRandomPayload(
|
|
variable payload : out DoublewordArray;
|
|
variable seed1 : inout positive;
|
|
variable seed2 : inout positive);
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a generic RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioFrameCreate(
|
|
constant ackId : in std_logic_vector(4 downto 0);
|
|
constant vc : in std_logic;
|
|
constant crf : in std_logic;
|
|
constant prio : in std_logic_vector(1 downto 0);
|
|
constant tt : in std_logic_vector(1 downto 0);
|
|
constant ftype : in std_logic_vector(3 downto 0);
|
|
constant sourceId : in std_logic_vector(15 downto 0);
|
|
constant destId : in std_logic_vector(15 downto 0);
|
|
constant payload : in RioPayload)
|
|
return RioFrame;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a NWRITE RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioNwrite(
|
|
constant wrsize : in std_logic_vector(3 downto 0);
|
|
constant address : in std_logic_vector(28 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant xamsbs : in std_logic_vector(1 downto 0);
|
|
constant dataLength : in natural range 1 to 32;
|
|
constant data : in DoublewordArray(0 to 31))
|
|
return RioPayload;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a NWRITER RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioNwriteR(
|
|
constant wrsize : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant address : in std_logic_vector(28 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant xamsbs : in std_logic_vector(1 downto 0);
|
|
constant dataLength : in natural range 1 to 32;
|
|
constant data : in DoublewordArray(0 to 31))
|
|
return RioPayload;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a NREAD RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioNread(
|
|
constant rdsize : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant address : in std_logic_vector(28 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant xamsbs : in std_logic_vector(1 downto 0))
|
|
return RioPayload;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a RESPONSE RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioResponse(
|
|
constant status : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant dataLength : in natural range 0 to 32;
|
|
constant data : in DoublewordArray(0 to 31))
|
|
return RioPayload;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a Maintenance RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioMaintenance(
|
|
constant transaction : in std_logic_vector(3 downto 0);
|
|
constant size : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant hopCount : in std_logic_vector(7 downto 0);
|
|
constant configOffset : in std_logic_vector(20 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant dataLength : in natural range 0 to 8;
|
|
constant data : in DoublewordArray(0 to 7))
|
|
return RioPayload;
|
|
|
|
-----------------------------------------------------------------------------
|
|
-- Function to convert a std_logic_vector to a string.
|
|
-----------------------------------------------------------------------------
|
|
function byteToString(constant byte : std_logic_vector(7 downto 0))
|
|
return string;
|
|
|
end package;
|
end package;
|
|
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
--
|
--
|
-------------------------------------------------------------------------------
|
-------------------------------------------------------------------------------
|
| Line 312... |
Line 470... |
|
|
---------------------------------------------------------------------------
|
---------------------------------------------------------------------------
|
-- Procedures to handle tests.
|
-- Procedures to handle tests.
|
---------------------------------------------------------------------------
|
---------------------------------------------------------------------------
|
|
|
|
procedure TestSpec(constant str : string) is
|
|
file specFile : text;
|
|
variable specLine, outputLine : line;
|
|
variable fStatus: FILE_OPEN_STATUS;
|
|
begin
|
|
file_open(fStatus, specFile, "testspec.txt", append_mode);
|
|
write(specLine, string'(str));
|
|
writeline (specFile, specLine);
|
|
file_close(specFile);
|
|
end procedure;
|
|
|
|
procedure TestCaseStart(constant str : string) is
|
|
file reportFile : text;
|
|
variable reportLine, outputLine : line;
|
|
variable fStatus: FILE_OPEN_STATUS;
|
|
begin
|
|
report str severity note;
|
|
end procedure;
|
|
|
procedure TestWarning(constant tag : in string) is
|
procedure TestWarning(constant tag : in string) is
|
variable writeBuffer : line;
|
variable writeBuffer : line;
|
begin
|
begin
|
write(writeBuffer, now);
|
write(writeBuffer, now);
|
write(writeBuffer, string'(":WARNING:"));
|
write(writeBuffer, string'(":WARNING:"));
|
| Line 519... |
Line 696... |
write(writeBuffer, string'(":COMPLETED"));
|
write(writeBuffer, string'(":COMPLETED"));
|
writeline(OUTPUT, writeBuffer);
|
writeline(OUTPUT, writeBuffer);
|
std.env.stop(0);
|
std.env.stop(0);
|
end TestEnd;
|
end TestEnd;
|
|
|
|
-----------------------------------------------------------------------------
|
|
--
|
|
-----------------------------------------------------------------------------
|
|
-----------------------------------------------------------------------------
|
|
-- Crc5 calculation function.
|
|
-- ITU, polynom=0x15.
|
|
-----------------------------------------------------------------------------
|
|
function Crc5(constant data : in std_logic_vector(18 downto 0);
|
|
constant crc : in std_logic_vector(4 downto 0))
|
|
return std_logic_vector is
|
|
type crcTableType is array (0 to 31) of std_logic_vector(7 downto 0);
|
|
constant crcTable : crcTableType := (
|
|
x"00", x"15", x"1f", x"0a", x"0b", x"1e", x"14", x"01",
|
|
x"16", x"03", x"09", x"1c", x"1d", x"08", x"02", x"17",
|
|
x"19", x"0c", x"06", x"13", x"12", x"07", x"0d", x"18",
|
|
x"0f", x"1a", x"10", x"05", x"04", x"11", x"1b", x"0e" );
|
|
variable index : natural range 0 to 31;
|
|
variable result : std_logic_vector(4 downto 0);
|
|
begin
|
|
result := crc;
|
|
index := to_integer(unsigned(data(18 downto 14) xor result));
|
|
result := crcTable(index)(4 downto 0);
|
|
index := to_integer(unsigned(data(13 downto 9) xor result));
|
|
result := crcTable(index)(4 downto 0);
|
|
index := to_integer(unsigned(data(8 downto 4) xor result));
|
|
result := crcTable(index)(4 downto 0);
|
|
index := to_integer(unsigned((data(3 downto 0) & '0') xor result));
|
|
return crcTable(index)(4 downto 0);
|
|
end Crc5;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a RapidIO physical layer control symbol.
|
|
---------------------------------------------------------------------------
|
|
function RioControlSymbolCreate(
|
|
constant stype0 : in std_logic_vector(2 downto 0);
|
|
constant parameter0 : in std_logic_vector(4 downto 0);
|
|
constant parameter1 : in std_logic_vector(4 downto 0);
|
|
constant stype1 : in std_logic_vector(2 downto 0);
|
|
constant cmd : in std_logic_vector(2 downto 0))
|
|
return std_logic_vector is
|
|
variable returnValue : std_logic_vector(23 downto 0);
|
|
variable symbolData : std_logic_vector(18 downto 0);
|
|
begin
|
|
symbolData(18 downto 16) := stype0;
|
|
symbolData(15 downto 11) := parameter0;
|
|
symbolData(10 downto 6) := parameter1;
|
|
symbolData(5 downto 3) := stype1;
|
|
symbolData(2 downto 0) := cmd;
|
|
|
|
returnValue(23 downto 5) := symbolData;
|
|
returnValue(4 downto 0) := Crc5(symbolData, "11111");
|
|
|
|
return returnValue;
|
|
end function;
|
|
|
|
-----------------------------------------------------------------------------
|
|
-- Crc16 calculation function.
|
|
-- CITT, polynom=0x1021.
|
|
-----------------------------------------------------------------------------
|
|
function Crc16(constant data : in std_logic_vector(15 downto 0);
|
|
constant crc : in std_logic_vector(15 downto 0))
|
|
return std_logic_vector is
|
|
type crcTableType is array (0 to 255) of std_logic_vector(15 downto 0);
|
|
constant crcTable : crcTableType := (
|
|
x"0000", x"1021", x"2042", x"3063", x"4084", x"50a5", x"60c6", x"70e7",
|
|
x"8108", x"9129", x"a14a", x"b16b", x"c18c", x"d1ad", x"e1ce", x"f1ef",
|
|
x"1231", x"0210", x"3273", x"2252", x"52b5", x"4294", x"72f7", x"62d6",
|
|
x"9339", x"8318", x"b37b", x"a35a", x"d3bd", x"c39c", x"f3ff", x"e3de",
|
|
x"2462", x"3443", x"0420", x"1401", x"64e6", x"74c7", x"44a4", x"5485",
|
|
x"a56a", x"b54b", x"8528", x"9509", x"e5ee", x"f5cf", x"c5ac", x"d58d",
|
|
x"3653", x"2672", x"1611", x"0630", x"76d7", x"66f6", x"5695", x"46b4",
|
|
x"b75b", x"a77a", x"9719", x"8738", x"f7df", x"e7fe", x"d79d", x"c7bc",
|
|
x"48c4", x"58e5", x"6886", x"78a7", x"0840", x"1861", x"2802", x"3823",
|
|
x"c9cc", x"d9ed", x"e98e", x"f9af", x"8948", x"9969", x"a90a", x"b92b",
|
|
x"5af5", x"4ad4", x"7ab7", x"6a96", x"1a71", x"0a50", x"3a33", x"2a12",
|
|
x"dbfd", x"cbdc", x"fbbf", x"eb9e", x"9b79", x"8b58", x"bb3b", x"ab1a",
|
|
x"6ca6", x"7c87", x"4ce4", x"5cc5", x"2c22", x"3c03", x"0c60", x"1c41",
|
|
x"edae", x"fd8f", x"cdec", x"ddcd", x"ad2a", x"bd0b", x"8d68", x"9d49",
|
|
x"7e97", x"6eb6", x"5ed5", x"4ef4", x"3e13", x"2e32", x"1e51", x"0e70",
|
|
x"ff9f", x"efbe", x"dfdd", x"cffc", x"bf1b", x"af3a", x"9f59", x"8f78",
|
|
x"9188", x"81a9", x"b1ca", x"a1eb", x"d10c", x"c12d", x"f14e", x"e16f",
|
|
x"1080", x"00a1", x"30c2", x"20e3", x"5004", x"4025", x"7046", x"6067",
|
|
x"83b9", x"9398", x"a3fb", x"b3da", x"c33d", x"d31c", x"e37f", x"f35e",
|
|
x"02b1", x"1290", x"22f3", x"32d2", x"4235", x"5214", x"6277", x"7256",
|
|
x"b5ea", x"a5cb", x"95a8", x"8589", x"f56e", x"e54f", x"d52c", x"c50d",
|
|
x"34e2", x"24c3", x"14a0", x"0481", x"7466", x"6447", x"5424", x"4405",
|
|
x"a7db", x"b7fa", x"8799", x"97b8", x"e75f", x"f77e", x"c71d", x"d73c",
|
|
x"26d3", x"36f2", x"0691", x"16b0", x"6657", x"7676", x"4615", x"5634",
|
|
x"d94c", x"c96d", x"f90e", x"e92f", x"99c8", x"89e9", x"b98a", x"a9ab",
|
|
x"5844", x"4865", x"7806", x"6827", x"18c0", x"08e1", x"3882", x"28a3",
|
|
x"cb7d", x"db5c", x"eb3f", x"fb1e", x"8bf9", x"9bd8", x"abbb", x"bb9a",
|
|
x"4a75", x"5a54", x"6a37", x"7a16", x"0af1", x"1ad0", x"2ab3", x"3a92",
|
|
x"fd2e", x"ed0f", x"dd6c", x"cd4d", x"bdaa", x"ad8b", x"9de8", x"8dc9",
|
|
x"7c26", x"6c07", x"5c64", x"4c45", x"3ca2", x"2c83", x"1ce0", x"0cc1",
|
|
x"ef1f", x"ff3e", x"cf5d", x"df7c", x"af9b", x"bfba", x"8fd9", x"9ff8",
|
|
x"6e17", x"7e36", x"4e55", x"5e74", x"2e93", x"3eb2", x"0ed1", x"1ef0" );
|
|
variable index : natural range 0 to 255;
|
|
variable result : std_logic_vector(15 downto 0);
|
|
begin
|
|
result := crc;
|
|
index := to_integer(unsigned(data(15 downto 8) xor result(15 downto 8)));
|
|
result := crcTable(index) xor (result(7 downto 0) & x"00");
|
|
index := to_integer(unsigned(data(7 downto 0) xor result(15 downto 8)));
|
|
result := crcTable(index) xor (result(7 downto 0) & x"00");
|
|
return result;
|
|
end Crc16;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a randomly initialized data array.
|
|
---------------------------------------------------------------------------
|
|
procedure CreateRandomPayload(
|
|
variable payload : out HalfwordArray;
|
|
variable seed1 : inout positive;
|
|
variable seed2 : inout positive) is
|
|
variable rand: real;
|
|
variable int_rand: integer;
|
|
variable stim: std_logic_vector(7 downto 0);
|
|
begin
|
|
for i in payload'range loop
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(7 downto 0) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(15 downto 8) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
end loop;
|
|
end procedure;
|
|
|
|
procedure CreateRandomPayload(
|
|
variable payload : out DoublewordArray;
|
|
variable seed1 : inout positive;
|
|
variable seed2 : inout positive) is
|
|
variable rand: real;
|
|
variable int_rand: integer;
|
|
variable stim: std_logic_vector(7 downto 0);
|
|
begin
|
|
for i in payload'range loop
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(7 downto 0) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(15 downto 8) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(23 downto 16) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(31 downto 24) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(39 downto 32) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(47 downto 40) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(55 downto 48) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
uniform(seed1, seed2, rand);
|
|
int_rand := integer(trunc(rand*256.0));
|
|
payload(i)(63 downto 56) := std_logic_vector(to_unsigned(int_rand, 8));
|
|
end loop;
|
|
end procedure;
|
|
---------------------------------------------------------------------------
|
|
-- Create a generic RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioFrameCreate(
|
|
constant ackId : in std_logic_vector(4 downto 0);
|
|
constant vc : in std_logic;
|
|
constant crf : in std_logic;
|
|
constant prio : in std_logic_vector(1 downto 0);
|
|
constant tt : in std_logic_vector(1 downto 0);
|
|
constant ftype : in std_logic_vector(3 downto 0);
|
|
constant sourceId : in std_logic_vector(15 downto 0);
|
|
constant destId : in std_logic_vector(15 downto 0);
|
|
constant payload : in RioPayload) return RioFrame is
|
|
variable frame : RioFrame;
|
|
variable result : HalfwordArray(0 to 137);
|
|
variable crc : std_logic_vector(15 downto 0) := x"ffff";
|
|
begin
|
|
-- Add the header and addresses.
|
|
result(0) := ackId & "0" & vc & crf & prio & tt & ftype;
|
|
result(1) := destId;
|
|
result(2) := sourceId;
|
|
|
|
-- Update the calculated CRC with the header contents.
|
|
crc := Crc16("00000" & result(0)(10 downto 0), crc);
|
|
crc := Crc16(result(1), crc);
|
|
crc := Crc16(result(2), crc);
|
|
|
|
-- Check if a single CRC should be added or two.
|
|
if (payload.length <= 37) then
|
|
-- Single CRC.
|
|
for i in 0 to payload.length-1 loop
|
|
result(i+3) := payload.data(i);
|
|
crc := Crc16(payload.data(i), crc);
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|
end loop;
|
|
result(payload.length+3) := crc;
|
|
|
|
-- Check if paddning is needed to make the payload even 32-bit.
|
|
if ((payload.length mod 2) = 1) then
|
|
result(payload.length+4) := x"0000";
|
|
frame.length := (payload.length+5) / 2;
|
|
else
|
|
frame.length := (payload.length+4) / 2;
|
|
end if;
|
|
else
|
|
-- Double CRC.
|
|
for i in 0 to 36 loop
|
|
result(i+3) := payload.data(i);
|
|
crc := Crc16(payload.data(i), crc);
|
|
end loop;
|
|
|
|
-- Add in-the-middle crc.
|
|
result(40) := crc;
|
|
crc := Crc16(crc, crc);
|
|
|
|
for i in 37 to payload.length-1 loop
|
|
result(i+4) := payload.data(i);
|
|
crc := Crc16(payload.data(i), crc);
|
|
end loop;
|
|
result(payload.length+4) := crc;
|
|
|
|
-- Check if paddning is needed to make the payload even 32-bit.
|
|
if ((payload.length mod 2) = 0) then
|
|
result(payload.length+5) := x"0000";
|
|
frame.length := (payload.length+6) / 2;
|
|
else
|
|
frame.length := (payload.length+5) / 2;
|
|
end if;
|
|
end if;
|
|
|
|
-- Update the result length.
|
|
for i in 0 to frame.length-1 loop
|
|
frame.payload(i) := result(2*i) & result(2*i+1);
|
|
end loop;
|
|
|
|
return frame;
|
|
end function;
|
|
|
|
-----------------------------------------------------------------------------
|
|
--
|
|
-----------------------------------------------------------------------------
|
|
function RioNwrite(
|
|
constant wrsize : in std_logic_vector(3 downto 0);
|
|
constant address : in std_logic_vector(28 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant xamsbs : in std_logic_vector(1 downto 0);
|
|
constant dataLength : in natural range 1 to 32;
|
|
constant data : in DoublewordArray(0 to 31))
|
|
return RioPayload is
|
|
variable payload : RioPayload;
|
|
begin
|
|
payload.data(0)(15 downto 12) := "0100";
|
|
payload.data(0)(11 downto 8) := wrsize;
|
|
payload.data(0)(7 downto 0) := (others=>'0');
|
|
|
|
payload.data(1) := address(28 downto 13);
|
|
|
|
payload.data(2)(15 downto 3) := address(12 downto 0);
|
|
payload.data(2)(2) := wdptr;
|
|
payload.data(2)(1 downto 0) := xamsbs;
|
|
|
|
for i in 0 to dataLength-1 loop
|
|
payload.data(3+4*i) := data(i)(63 downto 48);
|
|
payload.data(4+4*i) := data(i)(47 downto 32);
|
|
payload.data(5+4*i) := data(i)(31 downto 16);
|
|
payload.data(6+4*i) := data(i)(15 downto 0);
|
|
end loop;
|
|
|
|
payload.length := 3 + 4*dataLength;
|
|
|
|
return payload;
|
|
end function;
|
|
|
|
-----------------------------------------------------------------------------
|
|
--
|
|
-----------------------------------------------------------------------------
|
|
function RioNwriteR(
|
|
constant wrsize : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant address : in std_logic_vector(28 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant xamsbs : in std_logic_vector(1 downto 0);
|
|
constant dataLength : in natural range 1 to 32;
|
|
constant data : in DoublewordArray(0 to 31))
|
|
return RioPayload is
|
|
variable payload : RioPayload;
|
|
begin
|
|
payload.data(0)(15 downto 12) := "0101";
|
|
payload.data(0)(11 downto 8) := wrsize;
|
|
payload.data(0)(7 downto 0) := tid;
|
|
|
|
payload.data(1) := address(28 downto 13);
|
|
|
|
payload.data(2)(15 downto 3) := address(12 downto 0);
|
|
payload.data(2)(2) := wdptr;
|
|
payload.data(2)(1 downto 0) := xamsbs;
|
|
|
|
for i in 0 to dataLength-1 loop
|
|
payload.data(3+4*i) := data(i)(63 downto 48);
|
|
payload.data(4+4*i) := data(i)(47 downto 32);
|
|
payload.data(5+4*i) := data(i)(31 downto 16);
|
|
payload.data(6+4*i) := data(i)(15 downto 0);
|
|
end loop;
|
|
|
|
payload.length := 3 + 4*dataLength;
|
|
|
|
return payload;
|
|
end function;
|
|
|
|
-----------------------------------------------------------------------------
|
|
--
|
|
-----------------------------------------------------------------------------
|
|
function RioNread(
|
|
constant rdsize : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant address : in std_logic_vector(28 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant xamsbs : in std_logic_vector(1 downto 0))
|
|
return RioPayload is
|
|
variable payload : RioPayload;
|
|
begin
|
|
payload.data(0)(15 downto 12) := "0100";
|
|
payload.data(0)(11 downto 8) := rdsize;
|
|
payload.data(0)(7 downto 0) := tid;
|
|
|
|
payload.data(1) := address(28 downto 13);
|
|
|
|
payload.data(2)(15 downto 3) := address(12 downto 0);
|
|
payload.data(2)(2) := wdptr;
|
|
payload.data(2)(1 downto 0) := xamsbs;
|
|
|
|
payload.length := 3;
|
|
|
|
return payload;
|
|
end function;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a RESPONSE RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioResponse(
|
|
constant status : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant dataLength : in natural range 0 to 32;
|
|
constant data : in DoublewordArray(0 to 31))
|
|
return RioPayload is
|
|
variable payload : RioPayload;
|
|
begin
|
|
payload.data(0)(11 downto 8) := status;
|
|
payload.data(0)(7 downto 0) := tid;
|
|
|
|
if (dataLength = 0) then
|
|
payload.data(0)(15 downto 12) := "0000";
|
|
payload.length := 1;
|
|
else
|
|
payload.data(0)(15 downto 12) := "1000";
|
|
|
|
for i in 0 to dataLength-1 loop
|
|
payload.data(1+4*i) := data(i)(63 downto 48);
|
|
payload.data(2+4*i) := data(i)(47 downto 32);
|
|
payload.data(3+4*i) := data(i)(31 downto 16);
|
|
payload.data(4+4*i) := data(i)(15 downto 0);
|
|
end loop;
|
|
|
|
payload.length := 1 + 4*dataLength;
|
|
end if;
|
|
|
|
return payload;
|
|
end function;
|
|
|
|
---------------------------------------------------------------------------
|
|
-- Create a Maintenance RapidIO frame.
|
|
---------------------------------------------------------------------------
|
|
function RioMaintenance(
|
|
constant transaction : in std_logic_vector(3 downto 0);
|
|
constant size : in std_logic_vector(3 downto 0);
|
|
constant tid : in std_logic_vector(7 downto 0);
|
|
constant hopCount : in std_logic_vector(7 downto 0);
|
|
constant configOffset : in std_logic_vector(20 downto 0);
|
|
constant wdptr : in std_logic;
|
|
constant dataLength : in natural range 0 to 8;
|
|
constant data : in DoublewordArray(0 to 7))
|
|
return RioPayload is
|
|
variable payload : RioPayload;
|
|
begin
|
|
payload.data(0)(15 downto 12) := transaction;
|
|
payload.data(0)(11 downto 8) := size;
|
|
payload.data(0)(7 downto 0) := tid;
|
|
|
|
payload.data(1)(15 downto 8) := hopCount;
|
|
payload.data(1)(7 downto 0) := configOffset(20 downto 13);
|
|
|
|
payload.data(2)(15 downto 3) := configOffset(12 downto 0);
|
|
payload.data(2)(2) := wdptr;
|
|
payload.data(2)(1 downto 0) := "00";
|
|
|
|
if (dataLength = 0) then
|
|
payload.length := 3;
|
|
else
|
|
for i in 0 to dataLength-1 loop
|
|
payload.data(3+4*i) := data(i)(63 downto 48);
|
|
payload.data(4+4*i) := data(i)(47 downto 32);
|
|
payload.data(5+4*i) := data(i)(31 downto 16);
|
|
payload.data(6+4*i) := data(i)(15 downto 0);
|
|
end loop;
|
|
|
|
payload.length := 3 + 4*dataLength;
|
|
end if;
|
|
|
|
return payload;
|
|
end function;
|
|
|
|
-----------------------------------------------------------------------------
|
|
-- Function to convert a std_logic_vector to a string.
|
|
-----------------------------------------------------------------------------
|
|
function byteToString(constant byte : std_logic_vector(7 downto 0))
|
|
return string is
|
|
constant table : string(1 to 16) := "0123456789abcdef";
|
|
variable returnValue : string(1 to 2);
|
|
begin
|
|
returnValue(1) := table(to_integer(unsigned(byte(7 downto 4))) + 1);
|
|
returnValue(2) := table(to_integer(unsigned(byte(3 downto 0))) + 1);
|
|
return returnValue;
|
|
end function;
|
|
|
end package body;
|
end package body;
|
|
|
|
|
|
|
|
|
