X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=decoders%2Fonewire%2Fonewire.py;h=0f9db4dac19dbfd81f487b15eb490adbf66fc1d0;hb=0bd62eb1ffc0b1611f88c2cbf8e59b4be183113b;hp=3f4a817ce160b41da1ce4c92e71c9cc3a33d738c;hpb=d2b6e141c5c6707897b19cfd7ccf4f3ffd21d501;p=libsigrokdecode.git diff --git a/decoders/onewire/onewire.py b/decoders/onewire/onewire.py index 3f4a817..0f9db4d 100644 --- a/decoders/onewire/onewire.py +++ b/decoders/onewire/onewire.py @@ -23,11 +23,9 @@ import sigrokdecode as srd # Annotation feed formats -ANN_ASCII = 0 -ANN_DEC = 1 -ANN_HEX = 2 -ANN_OCT = 3 -ANN_BITS = 4 +ANN_LINK = 0 +ANN_NETWORK = 1 +ANN_TRANSFER = 2 class Decoder(srd.Decoder): api_version = 1 @@ -48,11 +46,9 @@ class Decoder(srd.Decoder): 'overdrive': ['Overdrive', 0], } annotations = [ - ['ASCII', 'Data bytes as ASCII characters'], - ['Decimal', 'Databytes as decimal, integer values'], - ['Hex', 'Data bytes in hex format'], - ['Octal', 'Data bytes as octal numbers'], - ['Bits', 'Data bytes in bit notation (sequence of 0/1 digits)'], + ['Link', 'Link layer events (reset, presence, bit slots)'], + ['Network', 'Network layer events (device addressing)'], + ['Transfer', 'Transfer layer events'], ] def __init__(self, **kwargs): @@ -84,7 +80,7 @@ class Decoder(srd.Decoder): # The width of the 1-Wire time base (30us) in number of samples. # TODO: optimize this value self.time_base = float(self.samplerate) * float(0.000030) - print ("DEBUG: samplerate = %d, time_base = %d" % (self.samplerate, self.time_base)) + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK, ['time_base = %d' % self.time_base]]) def report(self): pass @@ -105,8 +101,6 @@ class Decoder(srd.Decoder): self.lnk_fall = self.samplenum # Go to waiting for sample time self.lnk_state = 'WAIT FOR DATA SAMPLE' - self.put(self.lnk_fall, self.samplenum, self.out_ann, - [ANN_DEC, ['LNK: NEGEDGE: ']]) elif self.lnk_state == 'WAIT FOR DATA SAMPLE': # Data should be sample one 'time unit' after a falling edge if (self.samplenum - self.lnk_fall == 0.5*self.time_base): @@ -114,8 +108,7 @@ class Decoder(srd.Decoder): self.lnk_event = "DATA BIT" if (self.lnk_bit) : self.lnk_state = 'WAIT FOR FALLING EDGE' else : self.lnk_state = 'WAIT FOR RISING EDGE' - self.put(self.lnk_fall, self.samplenum, self.out_ann, - [ANN_DEC, ['LNK: BIT: ' + str(self.lnk_bit)]]) + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK, ['BIT: %01x' % self.lnk_bit]]) elif self.lnk_state == 'WAIT FOR RISING EDGE': # The end of a cycle is a rising edge. if (owr == 1): @@ -126,11 +119,9 @@ class Decoder(srd.Decoder): # Send a reset event to the next protocol layer. self.lnk_event = "RESET" self.lnk_state = "WAIT FOR PRESENCE DETECT" - self.put(self.lnk_fall, self.samplenum, self.out_proto, - ['RESET']) - self.put(self.lnk_fall, self.samplenum, self.out_ann, - [ANN_DEC, ['LNK: RESET: ']]) - print ("DEBUG: RESET t0=%d t+=%d" % (self.lnk_fall, self.samplenum)) + self.put(self.lnk_fall, self.samplenum, self.out_proto, ['RESET']) + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK , ['RESET']]) + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['RESET']]) # Reset the timer. self.lnk_fall = self.samplenum # Otherwise this is assumed to be a data bit. @@ -146,9 +137,9 @@ class Decoder(srd.Decoder): #self.lnk_event = "PRESENCE DETECT" if (self.lnk_present) : self.lnk_state = 'WAIT FOR FALLING EDGE' else : self.lnk_state = 'WAIT FOR RISING EDGE' - self.put(self.lnk_fall, self.samplenum, self.out_ann, - [ANN_DEC, ['LNK: PRESENCE: ' + str(self.lnk_present)]]) - print ("DEBUG: PRESENCE=%d t0=%d t+=%d" % (self.lnk_present, self.lnk_fall, self.samplenum)) + present_str = "False" if self.lnk_present else "True" + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_LINK , ['PRESENCE: ' + present_str]]) + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['PRESENCE: ' + present_str]]) else: raise Exception('Invalid lnk_state: %d' % self.lnk_state) @@ -165,59 +156,55 @@ class Decoder(srd.Decoder): if (self.net_state == "ROM COMMAND"): if (self.collect_data(8)): # self.put(self.lnk_fall, self.samplenum, -# self.out_proto, ['LNK: COMMAND', self.net_data]) - self.put(self.lnk_fall, self.samplenum, self.out_ann, - [ANN_DEC, ['NET: ROM COMMAND: 0x' + hex(self.net_data)]]) - print ("DEBUG: ROM_COMMAND=0x%02x t0=%d t+=%d" % (self.net_data, self.lnk_fall, self.samplenum)) - if (self.net_data in [0x33, 0x0f]): +# self.out_proto, ['ROM COMMAND', self.net_data]) + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: 0x%02x' % self.net_data]]) + if (self.net_data == 0x33): # READ ROM + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'READ ROM\'']]) + self.net_state = "ADDRESS" + elif (self.net_data == 0x0f): + # READ ROM TODO + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'READ ROM ???\'']]) self.net_state = "ADDRESS" elif (self.net_data == 0xcc): # SKIP ROM + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'SKIP ROM\'']]) self.net_state = "CONTROL COMMAND" elif (self.net_data == 0x55): # MATCH ROM + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'MATCH ROM\'']]) self.net_state = "ADDRESS" elif (self.net_data == 0xf0): # SEARCH ROM + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'SEARCH ROM\'']]) self.net_state = "SEARCH" elif (self.net_data == 0x3c): # OVERDRIVE SKIP ROM + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'OVERDRIVE SKIP ROM\'']]) self.net_state = "CONTROL COMMAND" elif (self.net_data == 0x69): # OVERDRIVE MATCH ROM + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'OVERDRIVE MATCH ROM\'']]) self.net_state = "ADDRESS" elif (self.net_state == "ADDRESS"): # family code (1B) + serial number (6B) + CRC (1B) if (self.collect_data((1+6+1)*8)): - self.net_family_code = (self.net_data >> (( 0)*8)) & 0xff - self.net_serial_number = (self.net_data >> (( 1)*8)) & 0xffffffffffff - self.net_crc = (self.net_data >> ((6+1)*8)) & 0xff - print ("DEBUG: net_family_code =0x%001x" % (self.net_family_code )) - print ("DEBUG: net_serial_number=0x%012x" % (self.net_serial_number)) - print ("DEBUG: net_crc =0x%001x" % (self.net_crc )) + self.net_address = self.net_data & 0xffffffffffffffff + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM: 0x%016x' % self.net_address]]) self.net_state = "CONTROL COMMAND" elif (self.net_state == "SEARCH"): # family code (1B) + serial number (6B) + CRC (1B) if (self.collect_search((1+6+1)*8)): - self.net_family_code = (self.net_data >> (( 0)*8)) & 0xff - self.net_serial_number = (self.net_data >> (( 1)*8)) & 0xffffffffffff - self.net_crc = (self.net_data >> ((6+1)*8)) & 0xff - print ("DEBUG: net_family_code =0x%001x" % (self.net_family_code )) - print ("DEBUG: net_serial_number=0x%012x" % (self.net_serial_number)) - print ("DEBUG: net_crc =0x%001x" % (self.net_crc )) + self.net_address = self.net_data & 0xffffffffffffffff + self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM: 0x%016x' % self.net_address]]) self.net_state = "CONTROL COMMAND" elif (self.net_state == "CONTROL COMMAND"): if (self.collect_data(8)): # self.put(self.lnk_fall, self.samplenum, # self.out_proto, ['LNK: COMMAND', self.net_data]) self.put(self.lnk_fall, self.samplenum, self.out_ann, - [ANN_DEC, ['NET: FUNCTION COMMAND: 0x' + hex(self.net_data)]]) - print ("DEBUG: FUNCTION_COMMAND=0x%02x t0=%d t+=%d" % (self.net_data, self.lnk_fall, self.samplenum)) - if (self.net_data == 0x44): - # CONVERT TEMPERATURE - self.net_state = "TODO" - elif (self.net_data == 0x48): + [ANN_TRANSFER, ['TRANSFER: FUNCTION COMMAND: 0x' + hex(self.net_data)]]) + if (self.net_data == 0x48): # COPY SCRATCHPAD self.net_state = "TODO" elif (self.net_data == 0x4e): @@ -232,6 +219,11 @@ class Decoder(srd.Decoder): elif (self.net_data == 0xb4): # READ POWER SUPPLY self.net_state = "TODO" + else: + # unsupported commands + self.net_state = "UNDEFINED" + elif (self.net_state == "UNDEFINED"): + pass else: raise Exception('Invalid net_state: %s' % self.net_state) elif (self.lnk_event != "NONE"): @@ -246,7 +238,6 @@ class Decoder(srd.Decoder): if (self.net_cnt == length): self.net_data = self.net_data & ((1<