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//
// Copyright 2020 Ettus Research, A National Instruments Brand
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
// Header File: axi4s
// Description: Macros for use with AXI4S
//
//-----------------------------------------------------------------------------
// Unidirectional AXI4-Stream interface
//-----------------------------------------------------------------------------
// Macro that drives o from i for all fields. Of course ready runs in the
// counter direction.
`define AXI4S_ASSIGN(O,I) \
if (``I.TDATA) ``O.tdata = ``I.tdata;\
if (``I.TUSER) ``O.tuser = ``I.tuser;\
else ``O.tuser = 0;\
if (``I.TKEEP) ``O.tkeep = ``I.tkeep;\
else ``O.tkeep = '1;\
if (``I.TLAST) ``O.tlast = ``I.tlast;\
``O.tvalid = ``I.tvalid;\
``I.tready = ``O.tready;
`define AXI4S_DEBUG_ASSIGN(O,I) \
(* mark_debug = "true" *) logic [``I.DATA_WIDTH-1:0] ``I``_debug_tdata;\
(* mark_debug = "true" *) logic [``I.USER_WIDTH-1:0] ``I``_debug_tuser;\
(* mark_debug = "true" *) logic [``I.DATA_WIDTH/8-1:0] ``I``_debug_tkeep;\
(* mark_debug = "true" *) logic ``I``_debug_tlast;\
(* mark_debug = "true" *) logic ``I``_debug_tvalid;\
(* mark_debug = "true" *) logic ``I``_debug_tready;\
always_comb begin\
if (``I.TDATA) ``I``_debug_tdata = ``I.tdata;\
if (``I.TUSER) ``I``_debug_tuser = ``I.tuser;\
if (``I.TKEEP) ``I``_debug_tkeep = ``I.tkeep;\
if (``I.TLAST) ``I``_debug_tlast = ``I.tlast;\
``I``_debug_tvalid = ``I.tvalid;\
``I``_debug_tready = ``O.tready;\
end\
always_comb begin\
if (``I.TDATA) ``O.tdata = ``I``_debug_tdata;\
if (``I.TUSER) ``O.tuser = ``I``_debug_tuser;\
else ``O.tuser = 0;\
if (``I.TKEEP) ``O.tkeep = ``I``_debug_tkeep;\
else ``O.tkeep = '1;\
if (``I.TLAST) ``O.tlast = ``I``_debug_tlast;\
``O.tvalid = ``I``_debug_tvalid;\
``I.tready = ``I``_debug_tready;\
end
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