blob: af4623ef7df6a44ba442acae1983f00a88fb406e [file] [log] [blame]
#!/usr/bin/env python3
#
# insert_layer.py: For the given install path, library name, and cellname,
# find the Magic layout of the cell, and add the specified layer geometry
# as given by a layer name and a string with four coordinate values.
# The layer is added to the layout in both the mag/ (full) and maglef/
# (abstract) directories. Option "-maglef" or "-mag" will restrict the
# use to only the view indicated by the option.
#
# e.g.:
#
# insert_layer.py /path/to/sky130A \
# sky130_fd_io sky130_fd_sc_hd__a21bo_1 pwell "29 17 69 157" -mag
import os
import re
import sys
def addlayer(filename, layer, geometry):
with open(filename, 'r') as ifile:
magtext = ifile.read().splitlines()
layerrex = re.compile('<< ' + layer + ' >>')
sectionrex = re.compile('<< ')
labelsrex = re.compile('<< labels >>')
endrex = re.compile('<< end >>')
in_layer = False
done = False
with open(filename, 'w') as ofile:
for line in magtext:
if not done and not in_layer:
# Handle case in which layer did not already exist in file
lmatch = labelsrex.match(line)
ematch = endrex.match(line)
if lmatch or ematch:
print('<< ' + layer + '>>', file=ofile)
print('rect ' + geometry, file=ofile)
done = True
lmatch = layerrex.match(line)
if lmatch:
in_layer = True
elif in_layer:
smatch = sectionrex.match(line)
if smatch:
print('rect ' + geometry, file=ofile)
in_layer = False
done = True
print(line, file=ofile)
def usage():
print("insert_layer.py <path_to_pdk> <libname> <cellname> <layer> <geometry> [option]")
print(" options:")
print(" -mag do only for the view in the mag/ directory")
print(" -maglef do only for the view in the maglef/ directory")
return 0
if __name__ == '__main__':
options = []
arguments = []
for item in sys.argv[1:]:
if item.find('-', 0) == 0:
options.append(item)
else:
arguments.append(item)
if len(arguments) < 5:
print("Not enough options given to insert_layer.py.")
usage()
sys.exit(0)
source = arguments[0]
libname = arguments[1]
cellname = arguments[2]
layer = arguments[3]
geometry = arguments[4]
# Diagnostic
print('insert_layer.py:')
print(' source = ' + source)
print(' library = ' + libname)
print(' cell = ' + cellname)
print(' layer = ' + layer)
print(' geometry = ' + geometry)
fail = 0
efformat = True if '-ef_format' in options else False
domag = True
domaglef = True
if '-mag' in options and '-maglef' not in options:
domaglef = False
if '-maglef' in options and '-mag' not in options:
domag = False
if domag:
if efformat:
filename = source + '/libs.ref/mag/' + libname + '/' + cellname + '.mag'
else:
filename = source + '/libs.ref/' + libname + '/mag/' + cellname + '.mag'
if os.path.isfile(filename):
addlayer(filename, layer, geometry)
else:
fail += 1
else:
fail += 1
if domaglef:
if efformat:
filename = source + '/libs.ref/maglef/' + libname + '/' + cellname + '.mag'
else:
filename = source + '/libs.ref/' + libname + '/maglef/' + cellname + '.mag'
if os.path.isfile(filename):
addlayer(filename, layer, geometry)
else:
fail += 1
else:
fail += 1
if fail == 2:
print('Error: No layout file in either mag/ or maglef/', file=sys.stderr)
if efformat:
print('(' + source + '/libs.ref/mag[lef]/' + libname +
'/' + cellname + '.mag)', file=sys.stderr)
else:
print('(' + source + '/libs.ref/' + libname + '/mag[lef]/'
+ cellname + '.mag)', file=sys.stderr)