blob: 19ec3168e5372884e0d26a8fa5f83510ca1962bb [file] [log] [blame]
#!/usr/bin/env python3
#
# fix_device_models ---
#
# This script fixes the issue where devices in the digital libraries did
# not get the proper name conversion; specifically, the "conb" cell has
# resistor type "short" which should be "sky130_fd_pr__res_generic_po",
# and the pw2nd device model name is missing the suffix "_05v5".
# (Added 8/30/2022: Correct for bad diode perimeter value, fixed in
# magic in 8.3.319)
#
# This script is a filter to be run by setting the name of this script as
# the value to "filter=" for the model install in the sky130 Makefile.
import re
import os
import sys
def filter(inname, outname):
# Read input
try:
with open(inname, 'r') as inFile:
stext = inFile.read()
slines = stext.splitlines()
except:
print('fix_device_models.py: failed to open ' + inname + ' for reading.', file=sys.stderr)
return 1
# Process input with regexp
fixedlines = []
modified = False
dioderex = re.compile('.*[ \t]+sky130_fd_pr__diode_pw2nd[ \t]+')
ndioderex = re.compile('.*[ \t]+ndiode_h[ \t]+')
shortrex = re.compile('.*[ \t]+short[ \t]+')
for line in slines:
# Check for incorrect diode reference
dmatch = dioderex.match(line)
# Check for incorrect HVL diode ("ndiode_h") reference
nmatch = ndioderex.match(line)
# Check for incorrect resistor reference
smatch = shortrex.match(line)
if dmatch:
fline = re.sub('pw2nd', 'pw2nd_05v5', line)
fline = re.sub('^X', 'D', fline)
fline = re.sub('a=', 'area=', fline)
fline = re.sub('p=', 'pj=', fline)
# HD library perimeter is 2.64um; also fix the units
fline = re.sub('pj=5.36', 'pj=2.64', fline)
fline = re.sub('06u', '06', fline)
fline = re.sub('11p', '11', fline)
fixedlines.append(fline)
modified = True
elif nmatch:
fline = re.sub('ndiode_h', 'sky130_fd_pr__diode_pw2nd_11v0', line)
fline = re.sub('^X', 'D', fline)
fline = re.sub('a=', 'area=', fline)
fline = re.sub('p=', 'pj=', fline)
# HVL library diode perimeter is 3.16um; also fix the units
fline = re.sub('pj=5.88', 'pj=3.16', fline)
fline = re.sub('06u', '06', fline)
fline = re.sub('11p', '11', fline)
fixedlines.append(fline)
modified = True
elif smatch:
fline = re.sub(' VNB short', ' sky130_fd_pr__res_generic_po', line)
fline = re.sub('short', 'sky130_fd_pr__res_generic_po', fline)
fline = re.sub('^X', 'R', fline)
fixedlines.append(fline)
modified = True
else:
fixedlines.append(line)
# Write output
if outname == None:
for i in fixedlines:
print(i)
else:
# If the output is a symbolic link but no modifications have been made,
# then leave it alone. If it was modified, then remove the symbolic
# link before writing.
if os.path.islink(outname):
if not modified:
return 0
else:
os.unlink(outname)
try:
with open(outname, 'w') as outFile:
for i in fixedlines:
print(i, file=outFile)
except:
print('fix_device_models.py: failed to open ' + outname + ' for writing.', file=sys.stderr)
return 1
if __name__ == '__main__':
# This script expects to get one or two arguments. One argument is
# mandatory and is the input file. The other argument is optional and
# is the output file. The output file and input file may be the same
# name, in which case the original input is overwritten.
options = []
arguments = []
for item in sys.argv[1:]:
if item.find('-', 0) == 0:
options.append(item[1:])
else:
arguments.append(item)
if len(arguments) > 0:
infilename = arguments[0]
if len(arguments) > 1:
outfilename = arguments[1]
else:
outfilename = None
result = filter(infilename, outfilename)
sys.exit(result)