chore: add timer if into a single file

rtl/apb4_tmr.sv

@@ -8,12 +8,7 @@
 // MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 // See the Mulan PSL v2 for more details.
 
-`include "register.sv"
-`include "clk_int_div.sv"
-`include "cdc_sync.sv"
-`include "counter.sv"
-`include "edge_det.sv"
-`include "tmr_define.sv"
+`include "tmr_define.svh"
 
 module apb4_tmr (
     apb4_if.slave apb4,

rtl/tmr_define.svh

@@ -70,13 +70,4 @@
 `define TMR_ETM_LOAD 3'b100
 // verilog_format: on
 
-interface tmr_if (
-    input logic exclk_i
-);
-  logic capch_i;
-  logic irq_o;
-
-  modport dut(input exclk_i, input capch_i, output irq_o);
-  modport tb(input exclk_i, output capch_i, input irq_o);
-endinterface
 `endif

rtl/tmr_if.sv

@@ -0,0 +1,19 @@
+// Copyright (c) 2023-2024 Miao Yuchi <miaoyuchi@ict.ac.cn>
+// tmr is licensed under Mulan PSL v2.
+// You can use this software according to the terms and conditions of the Mulan PSL v2.
+// You may obtain a copy of Mulan PSL v2 at:
+//             http://license.coscl.org.cn/MulanPSL2
+// THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+// EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+// MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+// See the Mulan PSL v2 for more details.
+
+interface tmr_if (
+    input logic exclk_i
+);
+  logic capch_i;
+  logic irq_o;
+
+  modport dut(input exclk_i, input capch_i, output irq_o);
+  modport tb(input exclk_i, output capch_i, input irq_o);
+endinterface