srd: Each PD now has its own subdirectory.

[libsigrokdecode.git] / decoders / pan1321 / pan1321.py

diff --git a/decoders/pan1321/pan1321.py b/decoders/pan1321/pan1321.py
new file mode 100644 (file)
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+++ b/decoders/pan1321/pan1321.py
@@ -0,0 +1,115 @@
+##
+## This file is part of the sigrok project.
+##
+## Copyright (C) 2012 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
+##
+
+#
+# Panasonic PAN1321 Bluetooth module protocol decoder
+#
+# TODO
+#
+
+import sigrokdecode as srd
+
+# Annotation feed formats
+ANN_ASCII = 0
+
+# UART 'data' packet type.
+T_DATA = 1
+
+# ...
+RX = 0
+TX = 1
+
+class Decoder(srd.Decoder):
+    id = 'pan1321'
+    name = 'PAN1321'
+    longname = 'Panasonic PAN1321'
+    desc = 'TODO.'
+    longdesc = 'TODO.'
+    license = 'gplv2+'
+    inputs = ['uart']
+    outputs = ['pan1321']
+    probes = []
+    options = {}
+    annotations = [
+        ['ASCII', 'TODO: description'],
+    ]
+
+    def __init__(self, **kwargs):
+        self.cmd = ['', '']
+
+    def start(self, metadata):
+        # self.out_proto = self.add(srd.OUTPUT_PROTO, 'pan1321')
+        self.out_ann = self.add(srd.OUTPUT_ANN, 'pan1321')
+
+    def report(self):
+        pass
+
+    def handle_host_command(self, ss, es, rxtx, s):
+        if s.startswith('AT+JSEC'):
+            pin = s[s.find('\r\n') - 4:len(s) - 2]
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Host set the Bluetooth PIN to ' + pin]])
+        elif s.startswith('AT+JSLN'):
+            name = s[s.find(',') + 1:-2]
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Host set the Bluetooth name to ' + name]])
+        else:
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Host sent unsupported command']])
+        self.cmd[rxtx] = ''
+
+    def handle_device_reply(self, ss, es, rxtx, s):
+        if s == 'ROK\r\n':
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Device initialized correctly']])
+        elif s == 'OK\r\n':
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Device acknowledged last command']])
+        elif s.startswith('ERR'):
+            error = s[s.find('=') + 1:]
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Device sent error code ' + error]])
+        else:
+            self.put(ss, es, self.out_ann,
+                     [ANN_ASCII, ['Device sent an unknown reply']])
+        self.cmd[rxtx] = ''
+
+    def decode(self, ss, es, data):
+        ptype, rxtx, pdata = data
+
+        # For now, ignore all UART packets except the actual data packets.
+        if ptype != T_DATA:
+            return
+
+        # Append a new (ASCII) byte to the currently built/parsed command.
+        self.cmd[rxtx] += chr(pdata)
+
+        # Get packets/bytes until an \r\n sequence is found (end of command).
+        if self.cmd[rxtx][-1:] != '\n':
+            return
+
+        # Handle host commands and device replies.
+        if rxtx == RX:
+            self.handle_device_reply(ss, es, rxtx, self.cmd[rxtx])
+        elif rxtx == TX:
+            self.handle_host_command(ss, es, rxtx, self.cmd[rxtx])
+        else:
+            pass # TODO: Error.
+