105 lines
3.5 KiB
Python
105 lines
3.5 KiB
Python
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#!/usr/bin/env python
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"""Generates the pin_cap table file for the SAMD port."""
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from __future__ import print_function
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import argparse
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import sys
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import csv
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table_header = """// This file was automatically generated by make-pin-cap.py
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//
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"""
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class Pins:
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def __init__(self):
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self.board_pins = [] # list of pin objects
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def parse_csv_file(self, filename):
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with open(filename, "r") as csvfile:
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rows = csv.reader(csvfile)
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for row in rows:
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# Pin numbers must start with "PA", "PB", "PC" or "PD"
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if len(row) > 0 and row[0].strip().upper()[:2] in ("PA", "PB", "PC", "PD"):
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self.board_pins.append(row)
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def print_table(self, table_filename, mcu_name):
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with open(table_filename, "wt") as table_file:
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table_file.write(table_header)
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table_file.write("const pin_af_t pin_af_table[] = {\n")
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if mcu_name == "SAMD21":
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for row in self.board_pins:
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pin = "PIN_" + row[0].upper()
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table_file.write(" #ifdef " + pin + "\n")
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eic = row[1] if row[1] else "0xff"
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adc = row[2] if row[2] else "0xff"
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table_file.write(" {%s, %s, %s" % (pin, eic, adc))
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for cell in row[3:]:
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if cell:
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table_file.write(
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", 0x%s" % cell if len(cell) == 2 else ", 0x0%s" % cell
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)
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else:
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table_file.write(", 0xff")
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table_file.write("},\n")
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table_file.write(" #endif\n")
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else:
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for row in self.board_pins:
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pin = "PIN_" + row[0].upper()
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table_file.write(" #ifdef " + pin + "\n")
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eic = row[1] if row[1] else "0xff"
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adc0 = row[2] if row[2] else "0xff"
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adc1 = row[3] if row[3] else "0xff"
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table_file.write(" {%s, %s, %s, %s" % (pin, eic, adc0, adc1))
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for cell in row[4:]:
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if cell:
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table_file.write(
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", 0x%s" % cell if len(cell) == 2 else ", 0x0%s" % cell
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)
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else:
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table_file.write(", 0xff")
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table_file.write("},\n")
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table_file.write(" #endif\n")
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table_file.write("};\n")
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def main():
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parser = argparse.ArgumentParser(
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prog="make-pin-cap.py",
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usage="%(prog)s [options] [command]",
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description="Generate MCU-specific pin cap table file",
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)
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parser.add_argument(
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"-c",
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"--csv",
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dest="csv_filename",
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help="Specifies the pin-mux-xxxx.csv filename",
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)
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parser.add_argument(
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"-t",
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"--table",
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dest="table_filename",
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help="Specifies the name of the generated pin cap table file",
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)
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parser.add_argument(
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"-m",
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"--mcu",
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dest="mcu_name",
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help="Specifies type of the MCU (SAMD21 or SAMD51)",
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)
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args = parser.parse_args(sys.argv[1:])
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pins = Pins()
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if args.csv_filename:
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pins.parse_csv_file(args.csv_filename)
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if args.table_filename:
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pins.print_table(args.table_filename, args.mcu_name)
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if __name__ == "__main__":
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main()
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