+ self.net_state = "COMMAND"
+ self.net_search = "P"
+ self.net_cnt = 0
+ elif (self.net_state == "IDLE"):
+ pass
+ elif (self.net_state == "TRANSPORT"):
+ if (self.collect_data(8)):
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK , ['TRANSPORT: 0x%02x' % self.net_data]])
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_TRANSPORT, ['TRANSPORT: 0x%02x' % self.net_data]])
+ self.put(self.lnk_fall, self.samplenum, self.out_proto, ['transfer', self.net_data])
+ elif (self.net_state == "COMMAND"):
+ if (self.collect_data(8)):
+ 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 = "GET ROM"
+ elif (self.net_data == 0x0f):
+ # CONDITIONAL READ ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'CONDITIONAL READ ROM\'']])
+ self.net_state = "GET ROM"
+ 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 = "TRANSPORT"
+ 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 = "GET ROM"
+ 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 ROM"
+ elif (self.net_data == 0xec):
+ # CONDITIONAL SEARCH ROM
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM COMMAND: \'CONDITIONAL SEARCH ROM\'']])
+ self.net_state = "SEARCH ROM"
+ 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 = "TRANSPORT"
+ 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 = "GET ROM"
+ elif (self.net_state == "GET ROM"):
+ # family code (1B) + serial number (6B) + CRC (1B)
+ if (self.collect_data(64)):
+ self.net_rom = self.net_data & 0xffffffffffffffff
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM: 0x%016x' % self.net_rom]])
+ self.net_state = "TRANSPORT"
+ elif (self.net_state == "SEARCH ROM"):
+ # family code (1B) + serial number (6B) + CRC (1B)
+ if (self.collect_search(64)):
+ self.net_rom = self.net_data & 0xffffffffffffffff
+ self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK, ['ROM: 0x%016x' % self.net_rom]])
+ self.net_state = "TRANSPORT"
+ else:
+ raise Exception('Invalid net_state: %s' % self.net_state)
+
+
+ # Link/Network layer data collector
+ def collect_data (self, length):
+ if (self.lnk_event == "DATA BIT"):
+ #print ("DEBUG: BIT=%d t0=%d t+=%d" % (self.lnk_bit, self.lnk_fall, self.samplenum))
+ self.net_data = self.net_data & ~(1 << self.net_cnt) | (self.lnk_bit << self.net_cnt)
+ self.net_cnt = self.net_cnt + 1
+ if (self.net_cnt == length):
+ self.net_data = self.net_data & ((1<<length)-1)
+ self.net_cnt = 0
+ return (1)
+ else:
+ return (0)
+ else:
+ return (0)
+
+ # Link/Network layer search collector
+ def collect_search (self, length):
+ if (self.lnk_event == "DATA BIT"):
+ #print ("DEBUG: SEARCH=%s BIT=%d t0=%d t+=%d" % (self.net_search, self.lnk_bit, self.lnk_fall, self.samplenum))
+ if (self.net_search == "P"):
+ self.net_data_p = self.net_data_p & ~(1 << self.net_cnt) | (self.lnk_bit << self.net_cnt)
+ self.net_search = "N"
+ elif (self.net_search == "N"):
+ self.net_data_n = self.net_data_n & ~(1 << self.net_cnt) | (self.lnk_bit << self.net_cnt)
+ self.net_search = "D"
+ elif (self.net_search == "D"):
+ self.net_data = self.net_data & ~(1 << self.net_cnt) | (self.lnk_bit << self.net_cnt)
+ self.net_search = "P"
+ self.net_cnt = self.net_cnt + 1
+ if (self.net_cnt == length):
+ self.net_data_p = self.net_data_p & ((1<<length)-1)
+ self.net_data_n = self.net_data_n & ((1<<length)-1)
+ self.net_data = self.net_data & ((1<<length)-1)
+ self.net_search = "P"
+ self.net_cnt = 0
+ return (1)
+ else:
+ return (0)
+ else:
+ return (0)
+
+
+# # Transport layer
+#
+# # State machine.
+# if (self.lnk_event == "RESET"):
+# self.trn_state = "IDLE"
+# elif (self.trn_state == "IDLE"):
+# pass
+# elif (self.trn_state == "COMMAND"):
+# if (self.collect_data(8)):
+## self.put(self.lnk_fall, self.samplenum, self.out_proto, ['FUNCTION COMMAND', self.net_data])
+# self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK , ['FUNCTION COMMAND: 0x%02x' % self.net_data]])
+# self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_TRANSPORT, ['FUNCTION COMMAND: 0x%02x' % self.net_data]])
+# if (self.net_data == 0x48):
+# # COPY SCRATCHPAD
+# self.trn_state = "TODO"
+# elif (self.net_data == 0x4e):
+# # WRITE SCRATCHPAD
+# self.trn_state = "TODO"
+# elif (self.net_data == 0xbe):
+# # READ SCRATCHPAD
+# self.trn_state = "TODO"
+# elif (self.net_data == 0xb8):
+# # RECALL E2
+# self.trn_state = "TODO"
+# elif (self.net_data == 0xb4):
+# # READ POWER SUPPLY
+# self.trn_state = "TODO"
+# else:
+# # unsupported commands
+# self.trn_state = "TODO"
+# elif (self.trn_state == "TODO"):
+# if (self.collect_data(8)):
+# self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK , ['TRANSPORT DATA: 0x%02x' % self.net_data]])
+# self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_TRANSPORT, ['TRANSPORT DATA: 0x%02x' % self.net_data]])
+## self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK , ['TODO unsupported transport state: %s' % self.trn_state]])
+## self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_TRANSPORT, ['TODO unsupported transport state: %s' % self.trn_state]])
+# pass
+# else:
+# raise Exception('Invalid trn_state: %s' % self.trn_state)
+
+
+#class onewire_device ():
+# def __init__ (self, scratchpad_size = 8):
+# pass
+# def reset (self):
+# pass
+# def data (self, data):
+# self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_NETWORK , ['TRANSPORT DATA: 0x%02x' % self.net_data]])
+# self.put(self.lnk_fall, self.samplenum, self.out_ann, [ANN_TRANSPORT, ['TRANSPORT DATA: 0x%02x' % self.net_data]])