#!/bin/sh
# SPDX-License-Identifier: GPL-3.0-or-later
# Generate the LFE5U-25F and LFE5U-45F caBGA256 symbols from the Lattice
# pinout CSVs (FPGA-SC-02033 ECP5U-25, FPGA-SC-02034 ECP5U-45).
#
#   kicad/lib/tools/make_ecp5_symbol.sh
#
# Needs kipart (pipx install kipart).
#
# Both parts have the same balls, banks and differential pairs in caBGA256;
# only the pad names and the upper-corner PLL inputs (45F only) differ.
# Writes kicad/lib/eboard_fpga.kicad_sym (overwritten).
set -eu
here=$(cd "$(dirname "$0")" && pwd)
ds=$here/../../../datasheets
command -v kipart >/dev/null 2>&1 || {
    echo "kipart not found; install it with: pipx install kipart" >&2
    exit 1
}
fp=Package_BGA:BGA-256_14.0x14.0mm_Layout16x16_P0.8mm_Ball0.45mm_Pad0.32mm_NSMD
out=$here/../eboard_fpga.kicad_sym
tmp=$(mktemp -d)
trap 'rm -rf "$tmp"' EXIT

python3 -I "$here/lattice2kipart.py" "$ds/FPGA-SC-02033-2-0-ECP5U-25-Pinout.csv" \
    CABGA256 LFE5U-25F-xBG256x "$fp" 24K > "$tmp/lfe5u25.csv"
python3 -I "$here/lattice2kipart.py" "$ds/FPGA-SC-02034-3-0-ECP5U-45-Pinout.csv" \
    CABGA256 LFE5U-45F-xBG256x "$fp" 44K > "$tmp/lfe5u45.csv"
# kipart names the units after the CSV unit column (Bank0 ... Bank8, Config, Power).
kipart -b --bundle-style none -w -o "$tmp/raw.kicad_sym" "$tmp/lfe5u45.csv"
# put all pin ends on the 2.54 mm grid
python3 -I "$here/kicad_sym_grid.py" "$tmp/raw.kicad_sym" > "$tmp/lfe5u45.kicad_sym"
# 25F: same geometry as the 45F symbol, pin names from the 25F pinout,
# so "Change symbol" swaps the two parts without touching any wire.
python3 -I "$here/derive_symbol.py" "$tmp/lfe5u45.kicad_sym" LFE5U-45F-xBG256x \
    "$tmp/lfe5u25.csv" > "$out"
echo "wrote $out"