From 4f10b2ad3d7e6d34e71f4909432cae01f8773b98 Mon Sep 17 00:00:00 2001
From: Konstantin Pavlov <pavlovconst@gmail.com>
Date: Wed, 25 Oct 2023 07:01:25 +0300
Subject: [PATCH] Add AXI interface definitions

---
 interfaces/axi4_if.sv | 183 ++++++++++++++++++++++++++++++++++++++++++
 interfaces/axis_if.sv |  59 ++++++++++++++
 2 files changed, 242 insertions(+)
 create mode 100644 interfaces/axi4_if.sv
 create mode 100644 interfaces/axis_if.sv

diff --git a/interfaces/axi4_if.sv b/interfaces/axi4_if.sv
new file mode 100644
index 0000000..f4a9252
--- /dev/null
+++ b/interfaces/axi4_if.sv
@@ -0,0 +1,183 @@
+//------------------------------------------------------------------------------
+// axi4_if.sv
+// published as part of https://github.com/pConst/basic_verilog
+// Konstantin Pavlov, pavlovconst@gmail.com
+//------------------------------------------------------------------------------
+
+
+// INFO ------------------------------------------------------------------------
+// AXI4-M instantiation
+//
+
+
+interface axi4_if #( parameter
+  ADDR_W = 32,
+  DATA_W = 32,
+
+  ID_W   = 8,
+
+  ARUSER_W = 0,
+  AWUSER_W = 0,
+  BUSER_W = 0,
+  RUSER_W = 0,
+  WUSER_W = 0
+);
+
+
+  localparam STRB_W = DATA_W/8;
+
+  logic [  ADDR_W-1:0] araddr;
+  logic [         1:0] arburst;
+  logic [         3:0] arcache;
+  logic [    ID_W-1:0] arid;
+  logic [         7:0] arlen;
+  logic [         1:0] arlock;
+  logic [         2:0] arprot;
+  logic [         3:0] arqos;
+  logic                arready;
+  logic [         3:0] arregion;
+  logic [         2:0] arsize;
+  logic [ARUSER_W-1:0] aruser;
+  logic                arvalid;
+
+  logic [  ADDR_W-1:0] awaddr;
+  logic [         1:0] awburst;
+  logic [         3:0] awcache;
+  logic [    ID_W-1:0] awid;
+  logic [         7:0] awlen;
+  logic [         1:0] awlock;
+  logic [         2:0] awprot;
+  logic [         3:0] awqos;
+  logic                awready;
+  logic [         3:0] awregion;
+  logic [         2:0] awsize;
+  logic [AWUSER_W-1:0] awuser;
+  logic                awvalid;
+
+  logic [    ID_W-1:0] bid;
+  logic                bready;
+  logic [         1:0] bresp;
+  logic [ BUSER_W-1:0] buser;
+  logic                bvalid;
+
+  logic [  DATA_W-1:0] rdata;
+  logic [    ID_W-1:0] rid;
+  logic                rlast;
+  logic                rready;
+  logic [         1:0] rres
+  logic [ RUSER_W-1:0] ruser;
+  logic                rvalid;
+
+  logic [  DATA_W-1:0] wdata;
+  logic                wid;
+  logic                wlast;
+  logic                wready;
+  logic [  STRB_W-1:0] wstrb;
+  logic [ WUSER_W-1:0] wuser;
+  logic                wvalid;
+
+
+  modport master(
+
+    input arready,
+    input awready,
+    input bid,
+    input bresp,
+    input bvalid,
+    input rdata,
+    input rid,
+    input rlast,
+    input rresp,
+    input rvalid,
+    input wready,
+
+    output araddr,
+    output arburst,
+    output arcache,
+    output arid,
+    output arlen,
+    output arlock,
+    output arprot,
+    output arqos,
+    output arregion,
+    output arsize,
+    output aruser,
+    output arvalid,
+    output awaddr,
+    output awburst,
+    output awcache,
+    output awid,
+    output awlen,
+    output awlock,
+    output awprot,
+    output awqos,
+    output awregion,
+    output awsize,
+    output awuser,
+    output awvalid,
+    output bready,
+    output buser,
+    output rready,
+    output ruser,
+    output wdata,
+    output wid,
+    output wlast,
+    output wstrb,
+    output wuser,
+    output wvalid
+  );
+
+
+  modport slave(
+
+    input araddr,
+    input arburst,
+    input arcache,
+    input arid,
+    input arlen,
+    input arlock,
+    input arprot,
+    input arqos,
+    input arregion,
+    input arsize,
+    input aruser,
+    input arvalid,
+    input awaddr,
+    input awburst,
+    input awcache,
+    input awid,
+    input awlen,
+    input awlock,
+    input awprot,
+    input awqos,
+    input awregion,
+    input awsize,
+    input awuser,
+    input awvalid,
+    input bready,
+    input buser,
+    input rready,
+    input ruser,
+    input wdata,
+    input wid,
+    input wlast,
+    input wstrb,
+    input wuser,
+    input wvalid,
+
+    output arready,
+    output awready,
+    output bid,
+    output bresp,
+    output bvalid,
+    output rdata,
+    output rid,
+    output rlast,
+    output rresp,
+    output rvalid,
+    output wready
+  );
+
+
+endinterface
+
diff --git a/interfaces/axis_if.sv b/interfaces/axis_if.sv
new file mode 100644
index 0000000..8c33820
--- /dev/null
+++ b/interfaces/axis_if.sv
@@ -0,0 +1,59 @@
+//------------------------------------------------------------------------------
+// axis_if.sv
+// published as part of https://github.com/pConst/basic_verilog
+// Konstantin Pavlov, pavlovconst@gmail.com
+//------------------------------------------------------------------------------
+
+
+// INFO ------------------------------------------------------------------------
+// AXI4-Stream instantiation
+//
+
+
+interface axis_if #( parameter
+  DATA_W = 32,
+  ID_W   = 8,
+  USER_W = 0
+);
+
+
+  logic [ DATA_W-1:0   ] tdata;
+  logic [ ID_W-1:0     ] tdest;
+  logic [ ID_W-1:0     ] tid;
+  logic [ DATA_W/8-1:0 ] tkeep;
+  logic                  tlast;
+  logic                  tready;
+  logic [ USER_W-1:0   ] tuser;
+  logic                  tvalid;
+
+
+  modport master(
+
+    input  tready,
+
+    output tdata,
+    output tdest,
+    output tid,
+    output tkeep,
+    output tlast,
+    output tuser,
+    output tvalid
+  );
+
+
+  modport slave(
+
+    input tdata,
+    input tdest,
+    input tid,
+    input tkeep,
+    input tlast,
+    input tuser,
+    input tvalid,
+
+    output tready
+  );
+
+
+endinterface
+