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-------------------------------------------------------------------------------
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--
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-- Copyright 2020
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-- ASTRON (Netherlands Institute for Radio Astronomy) <http://www.astron.nl/>
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-- P.O.Box 2, 7990 AA Dwingeloo, The Netherlands
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--
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-- Licensed under the Apache License, Version 2.0 (the "License");
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-- you may not use this file except in compliance with the License.
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-- You may obtain a copy of the License at
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--
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-- http://www.apache.org/licenses/LICENSE-2.0
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--
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-- Unless required by applicable law or agreed to in writing, software
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-- distributed under the License is distributed on an "AS IS" BASIS,
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-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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-- See the License for the specific language governing permissions and
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-- limitations under the License.
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--
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-------------------------------------------------------------------------------
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LIBRARY IEEE, common_pkg_lib;
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USE common_pkg_lib.common_pkg.ALL;
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USE common_pkg_lib.common_str_pkg.ALL;
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USE work.mm_file_pkg.ALL;
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PACKAGE mm_file_unb_pkg IS
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TYPE t_c_mmf_unb_sys IS RECORD
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nof_unb : NATURAL; -- Nof used UniBoard in our system [0..nof_unb-1]
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nof_fn : NATURAL; -- Nof used FNs [0..nof_fn-1] per UniBoard
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nof_bn : NATURAL; -- Nof used BNs [0..nof_fn-1] per UniBoard
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END RECORD;
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CONSTANT c_mmf_unb_nof_fn : NATURAL := 4;
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CONSTANT c_mmf_unb_nof_bn : NATURAL := 4;
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CONSTANT c_mmf_unb_nof_pn : NATURAL := c_mmf_unb_nof_fn + c_mmf_unb_nof_bn; -- = 8
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-- use fixed central directory to ease use of Python test case with Modelsim
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CONSTANT c_mmf_unb_file_path : STRING := "$UNB/Software/python/sim/";
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-- create mmf file prefix that is unique per slave
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FUNCTION mmf_unb_file_prefix(sys: t_c_mmf_unb_sys; node: NATURAL) RETURN STRING;
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FUNCTION mmf_unb_file_prefix( unb, node: NATURAL; node_type: STRING) RETURN STRING; -- unb 0,1,..., node = 0:3 for FN or BN
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FUNCTION mmf_unb_file_prefix( unb, node: NATURAL) RETURN STRING; -- unb 0,1,..., node = 0:7, with 0:3 for FN and 4:7 for BN
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FUNCTION mmf_unb_file_prefix(tb, unb, node: NATURAL) RETURN STRING; -- idem, with extra index tb = 0,1,... for use with multi testbench
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FUNCTION mmf_unb_file_prefix(tb, subrack, unb, node: NATURAL) RETURN STRING; -- idem, with extra index subrack = 0,1,... to support same local unb range per subrack
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END mm_file_unb_pkg;
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PACKAGE BODY mm_file_unb_pkg IS
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FUNCTION mmf_unb_file_prefix(sys: t_c_mmf_unb_sys; node: NATURAL) RETURN STRING IS
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-- This function is used to create files for node function instances that (can) run on
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-- an FN or a BN. One generate loop can be used for all node instances, no need to
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-- use a separate FOR loop for the back nodes and the front nodes as this function
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-- determines the UniBoard index for you.
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VARIABLE v_nodes_per_board : NATURAL := sys.nof_fn + sys.nof_bn;
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VARIABLE v_board_index : NATURAL := node/v_nodes_per_board;
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VARIABLE v_node_nr : NATURAL := node REM v_nodes_per_board;
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VARIABLE v_node_type : STRING(1 TO 2) := sel_a_b(v_node_nr>=sys.nof_fn, "BN", "FN");
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VARIABLE v_node_index : NATURAL := sel_a_b(v_node_nr>=sys.nof_fn, v_node_nr-sys.nof_fn, v_node_nr);
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BEGIN
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RETURN mmf_slave_prefix(c_mmf_unb_file_path, "UNB", v_board_index, v_node_type, v_node_index);
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END;
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FUNCTION mmf_unb_file_prefix(unb, node: NATURAL; node_type: STRING) RETURN STRING IS
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-- Use this function and pass the UNB and node type BN 0:3 or node type FN 0:3 index.
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BEGIN
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RETURN mmf_slave_prefix(c_mmf_unb_file_path, "UNB", unb, node_type, node);
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END;
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FUNCTION mmf_unb_file_prefix(unb, node: NATURAL) RETURN STRING IS
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-- Use this function and pass the UNB and node 0:7 index.
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CONSTANT c_node_type : STRING(1 TO 2) := sel_a_b(node>=c_mmf_unb_nof_fn, "BN", "FN");
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CONSTANT c_node_nr : NATURAL := node MOD c_mmf_unb_nof_fn; -- PN 0:3 --> FN 0:3, PN 4:7 --> BN 0:3
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BEGIN
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RETURN mmf_slave_prefix(c_mmf_unb_file_path, "UNB", unb, c_node_type, c_node_nr);
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END;
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FUNCTION mmf_unb_file_prefix(tb, unb, node: NATURAL) RETURN STRING IS
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-- Use this function and pass the UNB and node 0:7 index and a test bench index to allow file IO with multi tb.
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CONSTANT c_node_type : STRING(1 TO 2) := sel_a_b(node>=c_mmf_unb_nof_fn, "BN", "FN");
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CONSTANT c_node_nr : NATURAL := node MOD c_mmf_unb_nof_fn; -- PN 0:3 --> FN 0:3, PN 4:7 --> BN 0:3
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BEGIN
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RETURN mmf_slave_prefix(c_mmf_unb_file_path, "TB", tb, "UNB", unb, c_node_type, c_node_nr);
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END;
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FUNCTION mmf_unb_file_prefix(tb, subrack, unb, node: NATURAL) RETURN STRING IS
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-- Use this function and pass the UNB and node 0:7 index and a test bench index to allow file IO with multi subrack and multi tb.
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CONSTANT c_node_type : STRING(1 TO 2) := sel_a_b(node>=c_mmf_unb_nof_fn, "BN", "FN");
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CONSTANT c_node_nr : NATURAL := node MOD c_mmf_unb_nof_fn; -- PN 0:3 --> FN 0:3, PN 4:7 --> BN 0:3
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BEGIN
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RETURN mmf_slave_prefix(c_mmf_unb_file_path, "TB", tb, "SUBRACK", subrack, "UNB", unb, c_node_type, c_node_nr);
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END;
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END mm_file_unb_pkg;
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