diff options
Diffstat (limited to 'common/recipes-utils/openbmc-gpio/files/openbmc_gpio_util.py')
| -rw-r--r-- | common/recipes-utils/openbmc-gpio/files/openbmc_gpio_util.py | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/common/recipes-utils/openbmc-gpio/files/openbmc_gpio_util.py b/common/recipes-utils/openbmc-gpio/files/openbmc_gpio_util.py new file mode 100644 index 0000000..e4b40b0 --- /dev/null +++ b/common/recipes-utils/openbmc-gpio/files/openbmc_gpio_util.py @@ -0,0 +1,153 @@ +#!/usr/bin/python -tt +# Copyright 2015-present Facebook. All rights reserved. +# +# This program file is free software; you can redistribute it and/or modify it +# under the terms of the GNU General Public License as published by the +# Free Software Foundation; version 2 of the License. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +# for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program in a file named COPYING; if not, write to the +# Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, +# Boston, MA 02110-1301 USA +from __future__ import absolute_import +from __future__ import division +from __future__ import print_function +from __future__ import unicode_literals + +from soc_gpio_table import soc_gpio_table + +import openbmc_gpio +import openbmc_gpio_table + +import argparse +import logging +import sys + + +def _get_gpio_table(): + gpio = openbmc_gpio_table.SocGPIOTable(soc_gpio_table) + return gpio + + +def dump_func(args): + gpio = _get_gpio_table() + gpio.dump_functions() + return 0 + + +def config_func(args): + gpio = _get_gpio_table() + try: + gpio.config_function(args.function) + except openbmc_gpio_table.NotSmartEnoughException as e: + print('The code is not smart enough to set function "%s": %s\n' + 'Please set the function manually.' + % (args.function, str(e))) + print('The current HW setting for this function is:') + gpio.dump_function(args.function) + return -1 + except Exception as e: + print('Failed to set function "%s": %s\n' + 'Please set the function manually.' + % (args.function, str(e))) + print('The current HW setting for this function is:') + gpio.dump_function(args.function) + logging.exception('Exception:') + return -2 + + print('Function "%s" is set' % args.function) + return 0 + + +def export_func(args): + openbmc_gpio.gpio_export(args.gpio, args.shadow) + + +def set_func(args): + openbmc_gpio.gpio_set(args.gpio, args.value, + change_direction=False if args.keep else True) + + +def get_func(args): + val = openbmc_gpio.gpio_get( + args.gpio, change_direction=False if args.keep else True) + print('%d' % val) + + +def info_func(args): + res = openbmc_gpio.gpio_info(args.gpio) + print('GPIO info for %s:' % args.gpio) + print('Path: %s\nShadow: %s\nDirection: %s\nValue: %s' + % (res['path'], res['shadow'], res['direction'], res['value'])) + + +def main(): + ap = argparse.ArgumentParser() + ap.add_argument('--debug', action='store_true', + help='Enable debug messages') + + subparser = ap.add_subparsers() + + dump_parser = subparser.add_parser( + 'dump', help='Dump the current HW GPIO settings') + dump_parser.set_defaults(func=dump_func) + + config_parser = subparser.add_parser( + 'config', help='Configure one HW pin to a function') + config_parser.add_argument( + 'function', help='The function name to set') + config_parser.set_defaults(func=config_func) + + export_parser = subparser.add_parser( + 'export', help='Export a GPIO directory') + export_parser.add_argument( + 'gpio', help='The GPIO name, i.e. "A4", or "GPIOD2"') + export_parser.add_argument( + 'shadow', default=None, + help='The shadow name given to this GPIO') + export_parser.set_defaults(func=export_func) + + + set_parser = subparser.add_parser( + 'set', help='Set a value for a GPIO') + set_parser.add_argument( + 'gpio', help='The GPIO name or number') + set_parser.add_argument( + 'value', type=int, choices=[0, 1], + help='The value to set') + set_parser.add_argument( + '-k', '--keep', action='store_true', + help='Keep the GPIO direction') + set_parser.set_defaults(func=set_func) + + get_parser = subparser.add_parser( + 'get', help='Get a GPIO\'s value') + get_parser.add_argument( + 'gpio', help='The GPIO name or number') + get_parser.add_argument( + '-k', '--keep', action='store_true', + help='Keep the GPIO direction') + get_parser.set_defaults(func=get_func) + + info_parser = subparser.add_parser( + 'info', help='Get a GPIO\'s info') + info_parser.add_argument( + 'gpio', help='The GPIO name or number') + info_parser.set_defaults(func=info_func) + + args = ap.parse_args() + + logging.basicConfig(level=logging.DEBUG if args.debug else logging.INFO, + format='%(asctime)s: %(message)s') + + return args.func(args) + + +rc = main() +sys.exit(rc) |
