################################################################################################
# Copyright 2023 GlobalFoundries PDK Authors
#
# 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
#
#     https://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.
################################################################################################

#==================================
# ------ MOSFET DERIVATIONS -------
#==================================

logger.info('Starting MOSFET DERIVATIONS')

# ===================
# --- MOS EXCLUDE ---
# ===================

mos_exclude = resistor.join(sab).join(res_mk)
                      .join(diode_mk).join(lvs_bjt).join(lvs_rf)
                      .join(res_mk_type1)

ngate_lv = ngate.not(dualgate)
ngate_mv = ngate.and(dualgate)

# ==============
# ---- NMOS ----
# ==============

logger.info('Starting NMOS layers DERIVATIONS')

# nfet_01v8: Thin gate NMOS (1.8v) [nmos_1p8]
ngate_01v8 = ngate_lv.not(mos_exclude).not(nat)

# nfet_03v3: Thick gate NMOS (3.3v) [nmos_3p3]
ngate_03v3 = ngate_mv.not(mos_exclude).not(nat)

# nfet_01v8_nvt: Thin gate native NMOS (1.8v) [nmos_1p8_nat]
ngate_nvt_01v8 = ngate_lv.and(nat).not(mos_exclude)

# nfet_03v3_nvt: Thick gate native NMOS (3.3v) [nmos_3p3_nat]
ngate_nvt_03v3 = ngate_mv.and(nat).not(mos_exclude)

# ==============
# ---- PMOS ----
# ==============
logger.info('Starting PMOS layers DERIVATIONS')

# pfet_01v8: Thin gate PMOS (1.8v) [pmos_1p8]
pgate_01v8 = pgate.not(dualgate).not(mos_exclude).not(nat)

# pfet_03v3: 3.3V PMOS transistor [pmos_3p3]
pgate_03v3 = pgate.and(dualgate).not(mos_exclude).not(nat)