From 8e6c58aa91028964dab2a2721f39e62798abb884 Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Sun, 14 Jan 2018 00:41:59 +0000
Subject: [PATCH] Sasem Remote Controller LCD

---
 decoders/sasem/__init__.py | 24 +++++++++++++
 decoders/sasem/pd.py       | 90 ++++++++++++++++++++++++++++++++++++++++++++++
 decoders/sasem/run.sh      |  1 +
 3 files changed, 115 insertions(+)
 create mode 100644 decoders/sasem/__init__.py
 create mode 100644 decoders/sasem/pd.py
 create mode 100644 decoders/sasem/run.sh

diff --git a/decoders/sasem/__init__.py b/decoders/sasem/__init__.py
new file mode 100644
index 0000000..46a55ca
--- /dev/null
+++ b/decoders/sasem/__init__.py
@@ -0,0 +1,24 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2014 Gump Yang <gump.yang@gmail.com>
+##
+## 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, see <http://www.gnu.org/licenses/>.
+##
+
+'''
+Sasem Remote Controller decoder
+'''
+
+from .pd import Decoder
diff --git a/decoders/sasem/pd.py b/decoders/sasem/pd.py
new file mode 100644
index 0000000..f5c20c4
--- /dev/null
+++ b/decoders/sasem/pd.py
@@ -0,0 +1,90 @@
+##
+## This file is part of the libsigrokdecode project.
+##
+## Copyright (C) 2018 Sean Young <sean@mess.org>
+##
+## 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, see <http://www.gnu.org/licenses/>.
+##
+
+import sigrokdecode as srd
+
+class Decoder(srd.Decoder):
+    api_version = 3
+    id = 'sasem'
+    name = 'Sasem LCD'
+    longname = 'Sasem LCD'
+    desc = 'Sasem Remote Controller decoder.'
+    license = 'gplv2+'
+    inputs = ['logic']
+    outputs = ['sasem']
+    channels = (
+        {'id': 'db0', 'name': 'DB0', 'desc': 'Parallel Data 0'},
+        {'id': 'db1', 'name': 'DB1', 'desc': 'Parallel Data 1'},
+        {'id': 'db2', 'name': 'DB2', 'desc': 'Parallel Data 2'},
+        {'id': 'db3', 'name': 'DB3', 'desc': 'Parallel Data 3'},
+        {'id': 'rs', 'name': 'RS', 'desc': 'Register Select'},
+        {'id': 'e', 'name': 'E', 'desc': 'Enable'},
+    )
+    options = (
+    )
+    annotations = (
+        ('data', 'Stream data'),
+        ('cmd', 'Command Type'),
+    )
+    annotation_rows = (
+        ('data', 'Stream data', (0,)),
+        ('cmd', 'Command Type', (1,)),
+    )
+
+    def __init__(self):
+        self.reset()
+
+    def start(self):
+        self.out_python = self.register(srd.OUTPUT_PYTHON)
+        self.out_ann = self.register(srd.OUTPUT_ANN)
+
+    def reset(self):
+        self.first = False
+
+    def decode(self):
+        first_e = 0
+        first_b = 0
+        while True:
+            # Wait for failing edge
+            (d0, d1, d2, d3, rs, e) = self.wait({5: 'r'})
+
+            b = d0 + d1 * 2 + d2 * 4 + d3 * 8;
+
+            if self.first and e != first_e:
+                self.first = False
+
+            if self.first:
+                if rs:
+                    cmd = 'data'
+                else:
+                    cmd = 'reg'
+
+                c = b + 16 * first_b
+                if c >= 32 and c < 127 and rs:
+                    str = ('0x%02X' % c) + ' ' + chr(c)
+                else:
+                    str = ('0x%02X' % c)
+                self.put(first_samplenum, self.samplenum, self.out_ann, [0, [str]]);
+                self.put(first_samplenum, self.samplenum, self.out_ann, [1, [cmd]]);
+            else:
+                first_b = b
+                first_e = e
+                first_samplenum = self.samplenum
+
+            self.first = not self.first
diff --git a/decoders/sasem/run.sh b/decoders/sasem/run.sh
new file mode 100644
index 0000000..86da222
--- /dev/null
+++ b/decoders/sasem/run.sh
@@ -0,0 +1 @@
+SIGROKDECODE_DIR=/home/sean/git/libsigrokdecode/decoders/ sigrok-cli -d saleae-logic16 --config "samplerate=2 MHz" --continuous -P sasem
-- 
2.14.3