Merge 35187a3479 into 7198cf6471
This commit is contained in:
wgryncewicz
GitHub
commit
afcc8f0ebb
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright 2020 The SkyWater PDK Authors.
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#
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# Use of this source code is governed by the Apache 2.0
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# license that can be found in the LICENSE file or at
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# SPDX-License-Identifier: Apache-2.0
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import csv
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import json
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import os
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import sys
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import argparse
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import pathlib
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import glob
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import subprocess
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import re
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def outfile(cellpath, define_data, ftype='', extra='', exists=False):
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''' Determines output file path and name.
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Args:
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cellpath - path to a cell [str of pathlib.Path]
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define_data - cell definition data [dic]
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ftype - file type suffix [str]
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extra - extra suffix [str]
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exist - optional check if file exists [bool or None]
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Returns:
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outpath - output file namepath [str]
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'''
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fname = define_data['name'].lower().replace('$', '_')
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if ftype:
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ftype = '.'+ftype
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outpath = os.path.join(cellpath, f'{define_data["file_prefix"]}{extra}{ftype}.svg')
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if exists is None:
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pass
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elif not exists:
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#assert not os.path.exists(outpath), "Refusing to overwrite existing file:"+outpath
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print("Creating", outpath)
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elif exists:
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assert os.path.exists(outpath), "Missing required:"+outpath
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return outpath
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def patch_netlist_json (infile, outfile):
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''' Patches yosys generated netlist json
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to workaround netlistsvg compability issues.
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Currently covered:
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- convert unsupported pin direction 'inout' to 'output'
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- convert unsupported High-Z connection ("z") to none ("x")
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Args:
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infile - input file [str of pathlib.Path]
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outfile - patched file [str of pathlib.Path]
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'''
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block_header = '\s*"\w*"\:\s*\{' #eg. "connections": {
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unsupported_dir = '\s*"direction":\s*"inout"' #eg. "direction": "input"
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unsupported_con = '\s*"\w*":\s*\[\s*"z"\s*\]' #eg. "A": [ "z" ]
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json = ''
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current_block = None
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with open(str(infile),'r') as f:
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for line in f:
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if re.match (block_header, line):
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current_block = line.partition(':')[0].strip(' "\n')
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if re.match (unsupported_dir, line):
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line = re.sub ( ':\s*"inout"', ': "output"', line)
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if current_block =='connections' and re.match (unsupported_con, line):
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line = re.sub ( '\[\s*"z"\s*\]', '[ "x" ]' , line, flags=re.IGNORECASE)
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json +=line
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with open(str(outfile),'w') as f:
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f.write(json)
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def write_netlistsvg(cellpath, define_data, json_patching = False):
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''' Generates netlistsvg for a given cell.
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Args:
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cellpath - path to a cell [str of pathlib.Path]
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define_data - cell definition data [dic]
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json_patching - filter netlist for potential netlistsvg compablity issues
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'''
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netlist_json = os.path.join(cellpath, define_data['file_prefix']+'.json')
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if not os.path.exists(netlist_json):
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print("No netlist in", cellpath)
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assert os.path.exists(netlist_json), netlist_json
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if json_patching: #correct netlistsvg parsing issues
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netlist_json_fix = os.path.join(cellpath, define_data['file_prefix']+'.patched.json')
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patch_netlist_json (netlist_json, netlist_json_fix)
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netlist_json = netlist_json_fix
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outpath = outfile(cellpath, define_data, 'schematic')
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if subprocess.call(['netlistsvg', netlist_json, '-o', outpath]):
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if json_patching:
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os.remove(netlist_json_fix)
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raise ChildProcessError("netlistsvg execution failed")
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if json_patching:
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pass
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os.remove(netlist_json_fix)
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def process(cellpath):
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''' Processes cell indicated by path.
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Opens cell definiton and calls further processing
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Args:
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cellpath - path to a cell [str of pathlib.Path]
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'''
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print()
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print(cellpath)
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define_json = os.path.join(cellpath, 'definition.json')
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if not os.path.exists(define_json):
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print("No definition.json in", cellpath)
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assert os.path.exists(define_json), define_json
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define_data = json.load(open(define_json))
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if define_data['type'] == 'cell':
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try:
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write_netlistsvg(cellpath, define_data)
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except ChildProcessError:
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print ("Netlistsvg error, retrying with json patch...")
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write_netlistsvg(cellpath, define_data, json_patching=True)
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return
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def main():
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''' Generates netlistsvg schematic from cell netlist.'''
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prereq_txt = 'prerequisities:\n netlistsvg'
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output_txt = 'output:\n generates [cell_prefix].schematic.svg'
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allcellpath = '../../../libraries/*/latest/cells/*'
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parser = argparse.ArgumentParser(
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description = main.__doc__,
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epilog = prereq_txt +'\n\n'+ output_txt,
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formatter_class=argparse.RawDescriptionHelpFormatter)
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parser.add_argument(
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"--all_libs",
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help="process all cells in "+allcellpath,
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action="store_true")
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parser.add_argument(
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"cell_dir",
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help="path to the cell directory",
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type=pathlib.Path,
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nargs="*")
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args = parser.parse_args()
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if args.all_libs:
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path = pathlib.Path(allcellpath).expanduser()
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parts = path.parts[1:] if path.is_absolute() else path.parts
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paths = pathlib.Path(path.root).glob(str(pathlib.Path("").joinpath(*parts)))
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args.cell_dir = list(paths)
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cell_dirs = [d.resolve() for d in args.cell_dir if d.is_dir()]
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errors = 0
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for d in cell_dirs:
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try:
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process(d)
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except KeyboardInterrupt:
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sys.exit(1)
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except (AssertionError, FileNotFoundError, ChildProcessError) as ex:
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print (f'Error: {type(ex).__name__}')
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print (f'{ex.args}')
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errors +=1
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print (f'\n{len(cell_dirs)} files processed, {errors} errors.')
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return 0 if errors else 1
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if __name__ == "__main__":
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sys.exit(main())
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@ -0,0 +1,134 @@
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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Copyright 2020 The SkyWater PDK Authors.
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#
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# Use of this source code is governed by the Apache 2.0
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# license that can be found in the LICENSE file or at
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# SPDX-License-Identifier: Apache-2.0
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import csv
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import json
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import os
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import sys
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import argparse
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import pathlib
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import glob
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import subprocess
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def outfile(cellpath, define_data, ftype='', extra='', exists=False):
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''' Determines output file path and name.
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Args:
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cellpath - path to a cell [str of pathlib.Path]
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define_data - cell definition data [dic]
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ftype - file type suffix [str]
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extra - extra suffix [str]
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exist - optional check if file exists [bool or None]
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Returns:
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outpath - output file namepath [str]
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'''
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fname = define_data['name'].lower().replace('$', '_')
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if ftype:
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ftype = '.'+ftype
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outpath = os.path.join(cellpath, f'{define_data["file_prefix"]}{extra}{ftype}.svg')
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if exists is None:
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pass
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elif not exists:
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#assert not os.path.exists(outpath), "Refusing to overwrite existing file:"+outpath
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print("Creating", outpath)
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elif exists:
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assert os.path.exists(outpath), "Missing required:"+outpath
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return outpath
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def write_netlistsvg(cellpath, define_data):
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''' Generates netlistsvg for a given cell.
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Args:
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cellpath - path to a cell [str of pathlib.Path]
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define_data - cell definition data [dic]
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'''
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netlist_json = os.path.join(cellpath, define_data['file_prefix']+'.json')
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if not os.path.exists(netlist_json):
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print("No netlist in", cellpath)
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assert os.path.exists(netlist_json), netlist_json
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outpath = outfile(cellpath, define_data, 'schematic')
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if subprocess.call(['netlistsvg', netlist_json, '-o', outpath]):
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raise ChildProcessError("netlistsvg execution failed")
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def process(cellpath):
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''' Processes cell indicated by path.
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Opens cell definiton and calls further processing
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Args:
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cellpath - path to a cell [str of pathlib.Path]
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'''
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print()
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print(cellpath)
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define_json = os.path.join(cellpath, 'definition.json')
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if not os.path.exists(define_json):
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print("No definition.json in", cellpath)
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assert os.path.exists(define_json), define_json
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define_data = json.load(open(define_json))
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if define_data['type'] == 'cell':
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write_netlistsvg(cellpath, define_data)
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return
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def main():
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''' Generates netlistsvg schematic from cell netlist.'''
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prereq_txt = 'prerequisities:\n netlistsvg'
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output_txt = 'output:\n generates [cell_prefix].schematic.svg'
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allcellpath = '../../../libraries/*/latest/cells/*'
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parser = argparse.ArgumentParser(
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description = main.__doc__,
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epilog = prereq_txt +'\n\n'+ output_txt,
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formatter_class=argparse.RawDescriptionHelpFormatter)
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parser.add_argument(
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"--all_libs",
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help="process all cells in "+allcellpath,
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action="store_true")
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parser.add_argument(
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"cell_dir",
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help="path to the cell directory",
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type=pathlib.Path,
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nargs="*")
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args = parser.parse_args()
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if args.all_libs:
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path = pathlib.Path(allcellpath).expanduser()
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parts = path.parts[1:] if path.is_absolute() else path.parts
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paths = pathlib.Path(path.root).glob(str(pathlib.Path("").joinpath(*parts)))
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args.cell_dir = list(paths)
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cell_dirs = [d.resolve() for d in args.cell_dir if d.is_dir()]
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errors = 0
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for d in cell_dirs:
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try:
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process(d)
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except KeyboardInterrupt:
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sys.exit(1)
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except (AssertionError, FileNotFoundError, ChildProcessError) as ex:
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print (f'Error: {type(ex).__name__}')
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print (f'{ex.args}')
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errors +=1
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print (f'\n{len(cell_dirs)} files processed, {errors} errors.')
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return 0 if errors else 1
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if __name__ == "__main__":
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sys.exit(main())
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