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-rw-r--r--ports/cc3200/boards/make-pins.py233
1 files changed, 233 insertions, 0 deletions
diff --git a/ports/cc3200/boards/make-pins.py b/ports/cc3200/boards/make-pins.py
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+++ b/ports/cc3200/boards/make-pins.py
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+#!/usr/bin/env python
+"""Generates the pins file for the CC3200."""
+
+from __future__ import print_function
+
+import argparse
+import sys
+import csv
+
+
+SUPPORTED_AFS = { 'UART': ('TX', 'RX', 'RTS', 'CTS'),
+ 'SPI': ('CLK', 'MOSI', 'MISO', 'CS0'),
+ #'I2S': ('CLK', 'FS', 'DAT0', 'DAT1'),
+ 'I2C': ('SDA', 'SCL'),
+ 'TIM': ('PWM'),
+ 'SD': ('CLK', 'CMD', 'DAT0'),
+ 'ADC': ('CH0', 'CH1', 'CH2', 'CH3')
+ }
+
+def parse_port_pin(name_str):
+ """Parses a string and returns a (port, gpio_bit) tuple."""
+ if len(name_str) < 3:
+ raise ValueError("Expecting pin name to be at least 3 characters")
+ if name_str[:2] != 'GP':
+ raise ValueError("Expecting pin name to start with GP")
+ if not name_str[2:].isdigit():
+ raise ValueError("Expecting numeric GPIO number")
+ port = int(int(name_str[2:]) / 8)
+ gpio_bit = 1 << int(int(name_str[2:]) % 8)
+ return (port, gpio_bit)
+
+
+class AF:
+ """Holds the description of an alternate function"""
+ def __init__(self, name, idx, fn, unit, type):
+ self.name = name
+ self.idx = idx
+ if self.idx > 15:
+ self.idx = -1
+ self.fn = fn
+ self.unit = unit
+ self.type = type
+
+ def print(self):
+ print (' AF({:16s}, {:4d}, {:8s}, {:4d}, {:8s}), // {}'.format(self.name, self.idx, self.fn, self.unit, self.type, self.name))
+
+
+class Pin:
+ """Holds the information associated with a pin."""
+ def __init__(self, name, port, gpio_bit, pin_num):
+ self.name = name
+ self.port = port
+ self.gpio_bit = gpio_bit
+ self.pin_num = pin_num
+ self.board_pin = False
+ self.afs = []
+
+ def add_af(self, af):
+ self.afs.append(af)
+
+ def print(self):
+ print('// {}'.format(self.name))
+ if len(self.afs):
+ print('const pin_af_t pin_{}_af[] = {{'.format(self.name))
+ for af in self.afs:
+ af.print()
+ print('};')
+ print('pin_obj_t pin_{:4s} = PIN({:6s}, {:1d}, {:3d}, {:2d}, pin_{}_af, {});\n'.format(
+ self.name, self.name, self.port, self.gpio_bit, self.pin_num, self.name, len(self.afs)))
+ else:
+ print('pin_obj_t pin_{:4s} = PIN({:6s}, {:1d}, {:3d}, {:2d}, NULL, 0);\n'.format(
+ self.name, self.name, self.port, self.gpio_bit, self.pin_num))
+
+ def print_header(self, hdr_file):
+ hdr_file.write('extern pin_obj_t pin_{:s};\n'.format(self.name))
+
+
+class Pins:
+ def __init__(self):
+ self.board_pins = [] # list of pin objects
+
+ def find_pin(self, port, gpio_bit):
+ for pin in self.board_pins:
+ if pin.port == port and pin.gpio_bit == gpio_bit:
+ return pin
+
+ def find_pin_by_num(self, pin_num):
+ for pin in self.board_pins:
+ if pin.pin_num == pin_num:
+ return pin
+
+ def find_pin_by_name(self, name):
+ for pin in self.board_pins:
+ if pin.name == name:
+ return pin
+
+ def parse_af_file(self, filename, pin_col, pinname_col, af_start_col):
+ with open(filename, 'r') as csvfile:
+ rows = csv.reader(csvfile)
+ for row in rows:
+ try:
+ (port_num, gpio_bit) = parse_port_pin(row[pinname_col])
+ except:
+ continue
+ if not row[pin_col].isdigit():
+ raise ValueError("Invalid pin number {:s} in row {:s}".format(row[pin_col]), row)
+ # Pin numbers must start from 0 when used with the TI API
+ pin_num = int(row[pin_col]) - 1;
+ pin = Pin(row[pinname_col], port_num, gpio_bit, pin_num)
+ self.board_pins.append(pin)
+ af_idx = 0
+ for af in row[af_start_col:]:
+ af_splitted = af.split('_')
+ fn_name = af_splitted[0].rstrip('0123456789')
+ if fn_name in SUPPORTED_AFS:
+ type_name = af_splitted[1]
+ if type_name in SUPPORTED_AFS[fn_name]:
+ unit_idx = af_splitted[0][-1]
+ pin.add_af(AF(af, af_idx, fn_name, int(unit_idx), type_name))
+ af_idx += 1
+
+ def parse_board_file(self, filename, cpu_pin_col):
+ with open(filename, 'r') as csvfile:
+ rows = csv.reader(csvfile)
+ for row in rows:
+ # Pin numbers must start from 0 when used with the TI API
+ if row[cpu_pin_col].isdigit():
+ pin = self.find_pin_by_num(int(row[cpu_pin_col]) - 1)
+ else:
+ pin = self.find_pin_by_name(row[cpu_pin_col])
+ if pin:
+ pin.board_pin = True
+
+ def print_named(self, label, pins):
+ print('')
+ print('STATIC const mp_rom_map_elem_t pin_{:s}_pins_locals_dict_table[] = {{'.format(label))
+ for pin in pins:
+ if pin.board_pin:
+ print(' {{ MP_ROM_QSTR(MP_QSTR_{:6s}), MP_ROM_PTR(&pin_{:6s}) }},'.format(pin.name, pin.name))
+ print('};')
+ print('MP_DEFINE_CONST_DICT(pin_{:s}_pins_locals_dict, pin_{:s}_pins_locals_dict_table);'.format(label, label));
+
+ def print(self):
+ for pin in self.board_pins:
+ if pin.board_pin:
+ pin.print()
+ self.print_named('board', self.board_pins)
+ print('')
+
+ def print_header(self, hdr_filename):
+ with open(hdr_filename, 'wt') as hdr_file:
+ for pin in self.board_pins:
+ if pin.board_pin:
+ pin.print_header(hdr_file)
+
+ def print_qstr(self, qstr_filename):
+ with open(qstr_filename, 'wt') as qstr_file:
+ pin_qstr_set = set([])
+ af_qstr_set = set([])
+ for pin in self.board_pins:
+ if pin.board_pin:
+ pin_qstr_set |= set([pin.name])
+ for af in pin.afs:
+ af_qstr_set |= set([af.name])
+ print('// Board pins', file=qstr_file)
+ for qstr in sorted(pin_qstr_set):
+ print('Q({})'.format(qstr), file=qstr_file)
+ print('\n// Pin AFs', file=qstr_file)
+ for qstr in sorted(af_qstr_set):
+ print('Q({})'.format(qstr), file=qstr_file)
+
+
+def main():
+ parser = argparse.ArgumentParser(
+ prog="make-pins.py",
+ usage="%(prog)s [options] [command]",
+ description="Generate board specific pin file"
+ )
+ parser.add_argument(
+ "-a", "--af",
+ dest="af_filename",
+ help="Specifies the alternate function file for the chip",
+ default="cc3200_af.csv"
+ )
+ parser.add_argument(
+ "-b", "--board",
+ dest="board_filename",
+ help="Specifies the board file",
+ )
+ parser.add_argument(
+ "-p", "--prefix",
+ dest="prefix_filename",
+ help="Specifies beginning portion of generated pins file",
+ default="cc3200_prefix.c"
+ )
+ parser.add_argument(
+ "-q", "--qstr",
+ dest="qstr_filename",
+ help="Specifies name of generated qstr header file",
+ default="build/pins_qstr.h"
+ )
+ parser.add_argument(
+ "-r", "--hdr",
+ dest="hdr_filename",
+ help="Specifies name of generated pin header file",
+ default="build/pins.h"
+ )
+ args = parser.parse_args(sys.argv[1:])
+
+ pins = Pins()
+
+ print('// This file was automatically generated by make-pins.py')
+ print('//')
+ if args.af_filename:
+ print('// --af {:s}'.format(args.af_filename))
+ pins.parse_af_file(args.af_filename, 0, 1, 3)
+
+ if args.board_filename:
+ print('// --board {:s}'.format(args.board_filename))
+ pins.parse_board_file(args.board_filename, 1)
+
+ if args.prefix_filename:
+ print('// --prefix {:s}'.format(args.prefix_filename))
+ print('')
+ with open(args.prefix_filename, 'r') as prefix_file:
+ print(prefix_file.read())
+ pins.print()
+ pins.print_qstr(args.qstr_filename)
+ pins.print_header(args.hdr_filename)
+
+
+if __name__ == "__main__":
+ main()
generated by cgit v1.2.3 (git 2.25.1) at 2026-03-09 08:18:13 +0000