From: Uwe Hermann Date: Thu, 12 Jan 2012 22:20:41 +0000 (+0100) Subject: srd: nunchuk: Partial update to new stacking API. X-Git-Tag: libsigrokdecode-0.1.0~170 X-Git-Url: https://sigrok.org/gitweb/?p=libsigrokdecode.git;a=commitdiff_plain;h=c0d7b38e465d0f2f704c15f439e625f18122e3a3;ds=sidebyside srd: nunchuk: Partial update to new stacking API. This is unfinished and untested, and probably does not work at all, yet. --- diff --git a/decoders/nunchuk.py b/decoders/nunchuk.py index bda3745..0a1a24c 100644 --- a/decoders/nunchuk.py +++ b/decoders/nunchuk.py @@ -1,7 +1,7 @@ ## ## This file is part of the sigrok project. ## -## Copyright (C) 2010 Uwe Hermann +## Copyright (C) 2010-2012 Uwe Hermann ## ## 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 @@ -39,29 +39,6 @@ NUNCHUK_SLAVE = 2 INIT = 3 INITIALIZED = 4 -# 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': ''}, -] - class Decoder(srd.Decoder): id = 'nunchuk' name = 'Nunchuk' @@ -75,13 +52,13 @@ class Decoder(srd.Decoder): outputs = ['nunchuck'] probes = [] # TODO options = {} - annotations = [] + annotations = [ + ['TODO', 'TODO'], + ] def __init__(self, **kwargs): self.state = IDLE # TODO: Can we assume a certain initial state? - self.sx = self.sy = self.ax = self.ay = self.az = self.bz = self.bc = 0 - self.databytecount = 0 def start(self, metadata): @@ -92,84 +69,78 @@ class Decoder(srd.Decoder): pass def decode(self, ss, es, data): - out = [] - o = {} - - # We should accept a list of samples and iterate... - for p in example_packets: # TODO - - # TODO: Eliminate the need for ord(). - # s = ord(sample.data) - - if p['type'] == 'S': # TODO: Handle 'Sr' here, too? - self.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 self.state == INITIALIZED: - if self.databytecount == 0: - self.sx = p['data'] - elif self.databytecount == 1: - self.sy = p['data'] - elif self.databytecount == 2: - self.ax = p['data'] << 2 - elif self.databytecount == 3: - self.ay = p['data'] << 2 - elif self.databytecount == 4: - self.az = p['data'] << 2 - elif self.databytecount == 5: - self.bz = (p['data'] & (1 << 0)) >> 0 - self.bc = (p['data'] & (1 << 1)) >> 1 - self.ax |= (p['data'] & (3 << 2)) >> 2 - self.ay |= (p['data'] & (3 << 4)) >> 4 - self.az |= (p['data'] & (3 << 6)) >> 6 - # del o - o = {'type': 'D', 'range': (0, 0), 'data': []} - o['data'] = [self.sx, self.sy, self.ax, self.ay, \ - self.az, self.bz, self.bc] - # sx = sy = ax = ay = az = bz = bc = 0 - else: - pass # TODO - - if 0 <= self.databytecount <= 5: - self.databytecount += 1 - - # TODO: If 6 bytes read -> save and reset - - # TODO - elif p['type'] == 'DR' and self.state != INITIALIZED: - pass - - elif p['type'] == 'DW': - if p['data'] == 0x40 and self.state == START: - self.state = INIT - elif p['data'] == 0x00 and self.state == INIT: - o = {'type': 'I', 'range': (0, 0), 'data': []} - o['data'] = [0x40, 0x00] - out.append(o) - self.state = INITIALIZED - else: - pass # TODO - - elif p['type'] == 'P': - out.append(o) + + cmd, databyte, ack_bit = data + + if cmd == 'START': # TODO: Handle 'Sr' here, too? + self.state = START + + elif cmd == 'START_REPEAT': + pass # FIXME + + elif cmd == 'ADDRESS_READ': + # TODO: Error/Warning, not supported, I think. + pass + + elif cmd == 'ADDRESS_WRITE': + # The Wii Nunchuk always has slave address 0x54. + # TODO: Handle this stuff more correctly. + if databyte == 0x54: + pass # TODO + else: + pass # TODO: What to do here? Ignore? Error? + + elif cmd == 'DATA_READ' and self.state == INITIALIZED: + if self.databytecount == 0: + self.sx = databyte + elif self.databytecount == 1: + self.sy = databyte + elif self.databytecount == 2: + self.ax = databyte << 2 + elif self.databytecount == 3: + self.ay = databyte << 2 + elif self.databytecount == 4: + self.az = databyte << 2 + elif self.databytecount == 5: + self.bz = (databyte & (1 << 0)) >> 0 + self.bc = (databyte & (1 << 1)) >> 1 + self.ax |= (databyte & (3 << 2)) >> 2 + self.ay |= (databyte & (3 << 4)) >> 4 + self.az |= (databyte & (3 << 6)) >> 6 + + d = 'sx = 0x%02x, sy = 0x%02x, ax = 0x%02x, ay = 0x%02x, ' \ + 'az = 0x%02x, bz = 0x%02x, bc = 0x%02x' % (self.sx, \ + self.sy, self.ax, self.ay, self.az, self.bz, self.bc) + self.put(ss, es, self.out_ann, [0, [d]]) + + self.sx = self.sy = self.ax = self.ay = self.az = 0 + self.bz = self.bc = 0 + else: + pass # TODO + + if 0 <= self.databytecount <= 5: + self.databytecount += 1 + + # TODO: If 6 bytes read -> save and reset + + # TODO + elif cmd == 'DATA_READ' and self.state != INITIALIZED: + pass + + elif cmd == 'DATA_WRITE': + if self.state == IDLE: + self.state = INITIALIZED + return + + if databyte == 0x40 and self.state == START: + self.state = INIT + elif databyte == 0x00 and self.state == INIT: + self.put(ss, es, self.out_ann, [0, ['Initialize nunchuk']]) self.state = INITIALIZED - self.databytecount = 0 + else: + pass # TODO - if out != []: - # self.put(0, 0, self.out_proto, out_proto) - self.put(0, 0, self.out_ann, out) + elif cmd == 'STOP': + self.state = INITIALIZED + self.databytecount = 0