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scripts/python-skywater-pdk/skywater_pdk/netlistsvg-generate.py
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#!/usr/bin/env python3 | ||
# -*- coding: utf-8 -*- | ||
# | ||
# Copyright 2020 The SkyWater PDK Authors. | ||
# | ||
# Use of this source code is governed by the Apache 2.0 | ||
# license that can be found in the LICENSE file or at | ||
# https://www.apache.org/licenses/LICENSE-2.0 | ||
# | ||
# SPDX-License-Identifier: Apache-2.0 | ||
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import csv | ||
import json | ||
import os | ||
import sys | ||
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# prerequisities: netlistsvg | ||
# input: paths to cell dirs, containing Yosys netlist | ||
# output: generates [cell_prefix].schematic.svg | ||
# example usage 1: ./netlistsvg-generate.py \ | ||
# ../../../libraries/sky130_fd_sc_ms/latest/cells/a2111o \ | ||
# ../../../libraries/sky130_fd_sc_ms/latest/cells/a2111oi | ||
# example usage 2: ./netlistsvg-generate.py ALLLIBS | ||
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def outfile(cellpath, define_data, ftype='', extra='', exists=False): | ||
fname = define_data['name'].lower().replace('$', '_') | ||
if ftype: | ||
ftype = '.'+ftype | ||
outpath = os.path.join(cellpath, f'{define_data["file_prefix"]}{extra}{ftype}.svg') | ||
if exists is None: | ||
pass | ||
elif not exists: | ||
#assert not os.path.exists(outpath), "Refusing to overwrite existing file:"+outpath | ||
print("Creating", outpath) | ||
elif exists: | ||
assert os.path.exists(outpath), "Missing required:"+outpath | ||
return outpath | ||
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def write_netlistsvg(cellpath, define_data): | ||
netlist_json = os.path.join(cellpath, define_data['file_prefix']+'.json') | ||
if not os.path.exists(netlist_json): | ||
print("No " + define_data['file_prefix'] + ".json in", cellpath) | ||
assert os.path.exists(netlist_json), netlist_json | ||
outpath = outfile(cellpath, define_data, 'schematic') | ||
oscmd = 'netlistsvg ' + netlist_json + ' -o ' + outpath | ||
r = os.system(oscmd)>>8 | ||
assert r == 0 | ||
return r | ||
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def process(cellpath): | ||
print() | ||
print(cellpath) | ||
define_json = os.path.join(cellpath, 'definition.json') | ||
if not os.path.exists(define_json): | ||
print("No definition.json in", cellpath) | ||
assert os.path.exists(define_json), define_json | ||
define_data = json.load(open(define_json)) | ||
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if define_data['type'] == 'cell': | ||
write_netlistsvg(cellpath, define_data) | ||
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return | ||
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def main(args): | ||
if len(args) and args[0] == 'ALLLIBS': | ||
scrpath = os.path.dirname(os.path.realpath(__file__)) | ||
relpath = '/../../../libraries/*/latest/cells/*' | ||
#relpath = '/../../../libraries/*ms/latest/cells/x*' # DBG: limited | ||
args = os.popen('ls -d ' + scrpath + relpath).read().strip().split('\n') | ||
errors = 0 | ||
for a in args: | ||
try: | ||
process(os.path.realpath(a)) | ||
except: | ||
errors +=1 | ||
print (f'\n{len(args)} files processed, {errors} errors.') | ||
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if __name__ == "__main__": | ||
sys.exit(main(sys.argv[1:])) | ||
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