diff options
Diffstat (limited to 'meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/at93c46_util.py')
| -rwxr-xr-x | meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/at93c46_util.py | 194 |
1 files changed, 0 insertions, 194 deletions
diff --git a/meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/at93c46_util.py b/meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/at93c46_util.py deleted file mode 100755 index c10f879..0000000 --- a/meta-facebook/meta-yosemite/recipes-yosemite/fbutils/files/at93c46_util.py +++ /dev/null @@ -1,194 +0,0 @@ -#!/usr/bin/python -S -# Copyright 2004-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 argparse import ArgumentParser -from at93c46 import AT93C46, AT93C46SPI -import sys - -def get_raw(args): - return AT93C46SPI(args.bus_width, args.cs, args.clk, args.mosi, args.miso, - args.verbose) - -def get_chip(args): - return AT93C46(args.bus_width, args.cs, args.clk, args.mosi, args.miso, - args.byte_swap, args.verbose) - -def access_parser(ap): - # Default, based on currenct HW configuration - SPI_CS_DEFAULT = 68 - SPI_CLK_DEFAULT = 69 - SPI_MOSI_DEFAULT = 70 - SPI_MISO_DEFAULT = 71 - - spi_group = ap.add_argument_group('SPI Access') - spi_group.add_argument('--cs', type=int, default=SPI_CS_DEFAULT, - help='The GPIO number for SPI CS pin (default: %s)' - % SPI_CS_DEFAULT) - spi_group.add_argument('--clk', type=int, default=SPI_CLK_DEFAULT, - help='The GPIO number for SPI CLK pin (default: %s)' - % SPI_CLK_DEFAULT) - spi_group.add_argument('--mosi', type=int, default=SPI_MOSI_DEFAULT, - help='The GPIO number for SPI MOSI pin (default: %s)' - % SPI_MOSI_DEFAULT) - spi_group.add_argument('--miso', type=int, default=SPI_MISO_DEFAULT, - help='The GPIO number for SPI MISO pin (default: %s)' - % SPI_MISO_DEFAULT) - -def bus_width_parser(ap): - # Default, based on currenct HW configuration - AT83C46_BUS_WIDTH = 16 - - bus_group = ap.add_argument_group('Bus Width') - bus_group.add_argument('--bus-width', type=int, default=AT83C46_BUS_WIDTH, - help='The configured bus width (default: %s)' - % AT83C46_BUS_WIDTH) - -def read_raw(args): - raw = get_raw(args) - val = raw.read(args.address) - - if args.int: - print "{}".format(val) - else: - if args.bus_width == 16: - print "0x{:04X}".format(val) - else: - print "0x{:02X}".format(val) - -def write_raw(args): - if args.value[:2] == "0x": - value = int(args.value, 16) - else: - value = int(args.value) - - raw = get_raw(args) - raw.ewen() - raw.erase(args.address) - raw.write(args.address, value) - raw.ewds() - -def erase_raw(args): - raw = get_raw(args) - raw.ewen() - raw.erase(args.address) - raw.ewds() - -def raw_subparser(subparsers): - raw_parser = subparsers.add_parser('raw', help='Raw memory access') - raw_sub = raw_parser.add_subparsers() - - read_parser = raw_sub.add_parser('read', help='Read a single memory address') - read_parser.add_argument('address', type=int, help='The memory address') - read_parser.add_argument('--int', action='store_true', - help='Display output as an integer') - read_parser.set_defaults(func=read_raw) - - write_parser = raw_sub.add_parser('write', help='Write a single memory address') - write_parser.add_argument('address', type=int, help='The memory address') - write_parser.add_argument('value', type=str, help='The value to write, either integer or hex') - write_parser.set_defaults(func=write_raw) - - erase_parser = raw_sub.add_parser('erase', help='Erase a single memory address') - erase_parser.add_argument('address', type=int, help='The memory address') - erase_parser.set_defaults(func=erase_raw) - -def read_chip(args): - chip = get_chip(args) - data = chip.read(args.start, args.length) - - if args.file is None: - sys.stdout.write(data) - else: - fp = open(args.file, "wb") - fp.write(data) - -def write_chip(args): - chip = get_chip(args) - - # Either way, limit reads to the size of the chip - if args.file is None: - data = sys.stdin.read(AT93C46.AT93C46_MEMORY_SIZE) - else: - fp = open(args.file, "rb") - data = fp.read(AT93C46.AT93C46_MEMORY_SIZE) - - if args.length is not None: - # Make sure length is correct - if len(data) < args.length: - data = data + '\x00' * (args.length - len(data)) - if len(data) > args.length: - data = data[:args.length] - - chip.write(data, args.start) - -def erase_chip(args): - chip = get_chip(args) - chip.erase(args.start, args.length) - -def chip_subparser(subparsers): - chip_parser = subparsers.add_parser('chip', help='Chip-level access') - chip_sub = chip_parser.add_subparsers() - - read_parser = chip_sub.add_parser('read', help='Read from the chip') - read_parser.add_argument('--start', type=int, - help='The memory address to start at (default: 0)') - read_parser.add_argument('--length', type=int, - help='The number of bytes to read (default: whole chip)') - read_parser.add_argument('--file', type=str, - help='File to operate on (default: stdout)') - read_parser.add_argument('--byte-swap', action='store_true', - help='Byte swap values for 16-bit reads/writes') - read_parser.set_defaults(func=read_chip) - - write_parser = chip_sub.add_parser('write', help='Write to the chip') - write_parser.add_argument('--start', type=int, - help='The memory address to start at (default: 0)') - write_parser.add_argument('--length', type=int, - help='The number of bytes to write (default: file length)') - write_parser.add_argument('--file', type=str, - help='File to operate on (default: stdin)') - write_parser.add_argument('--byte-swap', action='store_true', - help='Byte swap values for 16-bit reads/writes') - write_parser.set_defaults(func=write_chip) - - erase_parser = chip_sub.add_parser('erase', help='Erase the chip') - erase_parser.add_argument('--start', type=int, - help='The memory address to start at (default: 0)') - erase_parser.add_argument('--length', type=int, - help='The number of bytes to erase (default: whole chip)') - erase_parser.set_defaults(func=erase_chip) - -if __name__ == "__main__": - # General arguments - ap = ArgumentParser() - ap.add_argument('--verbose', action='store_true', - help='Print verbose debugging information') - - # SPI and bus width arguments - access_parser(ap) - bus_width_parser(ap) - - # Functionality - subparsers = ap.add_subparsers() - raw_subparser(subparsers) - chip_subparser(subparsers) - - # Command runner - args = ap.parse_args() - args.func(args) |
