openlane/scripts/openroad/ioplacer.tcl

# Copyright 2020-2021 Efabless Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

if { [info exists ::env(CONTEXTUAL_IO_FLAG)] } {
	read_lef $::env(placement_tmpfiles)/top_level.lef
	#ppl::set_num_slots 2
}

if {[catch {read_lef $::env(MERGED_LEF)} errmsg]} {
	puts stderr $errmsg
	exit 1
}

if {[catch {read_def $::env(CURRENT_DEF)} errmsg]} {
	puts stderr $errmsg
	exit 1
}

if {$::env(FP_IO_HLENGTH) != "" && $::env(FP_IO_HLENGTH) != ""} {
    set_pin_length -hor_length $::env(FP_IO_HLENGTH) \
                   -ver_length $::env(FP_IO_VLENGTH)
}

if {$::env(FP_IO_HLENGTH) != "" && $::env(FP_IO_HLENGTH) != ""} {
    set_pin_length_extension -hor_extension $::env(FP_IO_HEXTEND) \
                             -ver_extension $::env(FP_IO_VEXTEND)
}

if {$::env(FP_IO_HLENGTH) != "" && $::env(FP_IO_HLENGTH) != ""} {
    set_pin_thick_multiplier -hor_multiplier $::env(FP_IO_HTHICKNESS_MULT) \
                             -ver_multiplier $::env(FP_IO_VTHICKNESS_MULT)
}

set arg_list [list]
if { $::env(FP_IO_MODE) == 1 } {
	lappend arg_list -random
}

if { $::env(FP_IO_MIN_DISTANCE) != "" } {
	lappend arg_list -min_distance $::env(FP_IO_MIN_DISTANCE)
}

set HMETAL $::env(FP_IO_HLAYER)
set VMETAL $::env(FP_IO_VLAYER)

place_pins {*}$arg_list \
	-random_seed 42 \
	-hor_layers $HMETAL \
	-ver_layers $VMETAL

write_def $::env(SAVE_DEF)