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Diffstat (limited to 'scripts/nunchuk.py')
| -rw-r--r-- | scripts/nunchuk.py | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/scripts/nunchuk.py b/scripts/nunchuk.py deleted file mode 100644 index 409e120..0000000 --- a/scripts/nunchuk.py +++ /dev/null @@ -1,157 +0,0 @@ -## -## This file is part of the sigrok project. -## -## Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> -## -## This program 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; either version 2 of the License, or -## (at your option) any later version. -## -## 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; if not, write to the Free Software -## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -## - -# -# Nintendo Wii Nunchuk decoder -# - -# TODO: Description - -# FIXME: This is just some example input for testing purposes... -example_packets = [ - # START condition. - {'type': 'S', 'range': (10, 11), 'data': None, 'ann': ''}, - - # Nunchuk init: Write 0x40,0x00 to slave address 0x54. - {'type': 'AW', 'range': (12, 13), 'data': 0x54, 'ann': ''}, - {'type': 'DW', 'range': (14, 15), 'data': 0x40, 'ann': ''}, - {'type': 'AW', 'range': (16, 17), 'data': 0x54, 'ann': ''}, - {'type': 'DW', 'range': (18, 19), 'data': 0x00, 'ann': ''}, - - # Get data: Read 6 bytes of data. - {'type': 'DR', 'range': (20, 21), 'data': 0x11, 'ann': ''}, - {'type': 'DR', 'range': (22, 23), 'data': 0x22, 'ann': ''}, - {'type': 'DR', 'range': (24, 25), 'data': 0x33, 'ann': ''}, - {'type': 'DR', 'range': (26, 27), 'data': 0x44, 'ann': ''}, - {'type': 'DR', 'range': (28, 29), 'data': 0x55, 'ann': ''}, - {'type': 'DR', 'range': (30, 31), 'data': 0x66, 'ann': ''}, - - # STOP condition. - {'type': 'P', 'range': (32, 33), 'data': None, 'ann': ''}, -] - -def decode(inbuf): - """Nintendo Wii Nunchuk decoder""" - - # FIXME: Get the data in the correct format in the first place. - inbuf = [ord(x) for x in inbuf] - out = [] - o = {} - - # TODO: Pass in metadata. - - # States - IDLE, START, NUNCHUK_SLAVE, INIT, INITIALIZED = range(5) - state = IDLE # TODO: Can we assume a certain initial state? - - sx = sy = ax = ay = az = bz = bc = 0 - - databytecount = 0 - - # Loop over all I2C packets. - for p in example_packets: - if p['type'] == 'S': # TODO: Handle 'Sr' here, too? - state = START - - elif p['type'] == 'Sr': - pass # FIXME - - elif p['type'] == 'AR': - # TODO: Error/Warning, not supported, I think. - pass - - elif p['type'] == 'AW': - # The Wii Nunchuk always has slave address 0x54. - # TODO: Handle this stuff more correctly. - if p['data'] == 0x54: - pass # TODO - else: - pass # TODO: What to do here? Ignore? Error? - - elif p['type'] == 'DR' and state == INITIALIZED: - if databytecount == 0: - sx = p['data'] - elif databytecount == 1: - sy = p['data'] - elif databytecount == 2: - ax = p['data'] << 2 - elif databytecount == 3: - ay = p['data'] << 2 - elif databytecount == 4: - az = p['data'] << 2 - elif databytecount == 5: - bz = (p['data'] & (1 << 0)) >> 0 - bc = (p['data'] & (1 << 1)) >> 1 - ax |= (p['data'] & (3 << 2)) >> 2 - ay |= (p['data'] & (3 << 4)) >> 4 - az |= (p['data'] & (3 << 6)) >> 6 - # del o - o = {'type': 'D', 'range': (0, 0), 'data': []} - o['data'] = [sx, sy, ax, ay, az, bz, bc] - # sx = sy = ax = ay = az = bz = bc = 0 - else: - pass # TODO - - if 0 <= databytecount <= 5: - databytecount += 1 - - # TODO: If 6 bytes read -> save and reset - - # TODO - elif p['type'] == 'DR' and state != INITIALIZED: - pass - - elif p['type'] == 'DW': - if p['data'] == 0x40 and state == START: - state = INIT - elif p['data'] == 0x00 and state == INIT: - o = {'type': 'I', 'range': (0, 0), 'data': []} - o['data'] = [0x40, 0x00] - out.append(o) - state = INITIALIZED - else: - pass # TODO - - elif p['type'] == 'P': - out.append(o) - state = INITIALIZED - databytecount = 0 - - print out - - # FIXME - return '' - -def register(): - return { - 'id': 'nunchuk', - 'name': 'Nunchuk', - 'desc': 'Nintendo Wii Nunchuk decoder', - 'inputformats': ['i2c'], - 'ouputformats': ['nunchuk'], - } - -# Use psyco (if available) as it results in huge performance improvements. -try: - import psyco - psyco.bind(decode) -except ImportError: - pass - |