bus: ari: Implement ARI interconnect groundwork

Signed-off-by: Ian M. <ian@aptel.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/rtl/bus/ari_ring.sv b/rtl/bus/ari_ring.sv
new file mode 100644
index 0000000..48062c7
--- /dev/null
+++ b/rtl/bus/ari_ring.sv
@@ -0,0 +1,52 @@
+//
+// Copyright (c) 2026, Apollo Telephone Laboratories.
+// Provided under the BSD-3 clause.
+//
+
+`include "bus/ari.svh"
+
+//
+// Represents a ring of ARI segments which forms a single
+// bus channel.
+//
+// @clk_i:      Clock input
+// @reset_i:    Reset input
+// @tap_i:      Segment taps
+//
+module ari_ring (
+    input wire clk_i,
+    input wire reset_i,
+    input AriFrame tap_i[0:ARI_SEGMENT_COUNT-1]
+);
+    // Segment feeders
+    AriFrame seg3_feed;
+    AriFrame seg2_feed;
+    AriFrame seg1_feed;
+
+    // Segment 0
+    ari_segment seg0 (
+        .clk_i(clk_i),
+        .reset_i(reset_i),
+        .ingress_i(seg3_feed),
+        .tap_i(tap_i[0]),
+        .egress_o(seg1_feed)
+    );
+
+    // Segment 1
+    ari_segment seg1 (
+        .clk_i(clk_i),
+        .reset_i(reset_i),
+        .ingress_i(seg1_feed),
+        .tap_i(tap_i[1]),
+        .egress_o(seg2_feed)
+    );
+
+    // Segment 2
+    ari_segment seg2 (
+        .clk_i(clk_i),
+        .reset_i(reset_i),
+        .ingress_i(seg2_feed),
+        .tap_i(tap_i[2]),
+        .egress_o(seg3_feed)
+    );
+endmodule