From 8fc54d1b2dec8bc9c11aaf6293abdd95de7f9e91 Mon Sep 17 00:00:00 2001
From: schneider <schneider@blinkenlichts.net>
Date: Mon, 12 Dec 2011 18:02:24 +0100
Subject: [PATCH] added first drafts of simple gamelib

---
 tools/game/r0ketrem0te/__init__.py        |  0
 tools/game/r0ketrem0te/rem0te.py          | 53 +++++++++++++
 tools/game/r0ketrem0te/serialinterface.py | 92 +++++++++++++++++++++++
 tools/game/setup.py                       |  5 ++
 tools/game/simpletest.py                  | 11 +++
 5 files changed, 161 insertions(+)
 create mode 100644 tools/game/r0ketrem0te/__init__.py
 create mode 100644 tools/game/r0ketrem0te/rem0te.py
 create mode 100644 tools/game/r0ketrem0te/serialinterface.py
 create mode 100644 tools/game/setup.py
 create mode 100644 tools/game/simpletest.py

diff --git a/tools/game/r0ketrem0te/__init__.py b/tools/game/r0ketrem0te/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tools/game/r0ketrem0te/rem0te.py b/tools/game/r0ketrem0te/rem0te.py
new file mode 100644
index 0000000..080e82b
--- /dev/null
+++ b/tools/game/r0ketrem0te/rem0te.py
@@ -0,0 +1,53 @@
+import serialinterface
+import thread
+import threading
+import Queue
+import crcmod
+
+class r0ket:
+    def __init__(self, path2device):
+        self.ser = serialinterface.SerialInterface(path2device, 115200, 0)
+        self.free = threading.Lock()
+        self.packets = Queue.Queue()
+        thread.start_new_thread(self.readerThread,())
+        self.setPacketLength(0x20)
+        self.crc = crcmod.predefined.mkCrcFun('crc-ccitt-false')
+
+    def writeCommand(self, command, data):
+        crc = self.crc(data)
+        data += chr(crc>>8);
+        data += chr(crc&0xFF);
+        self.free.acquire()
+        print 'sending command:', command, 'len:', len(data), 'data:', list(data)
+        self.ser.writeMessage(command,data);
+
+    def readerThread(self):
+        while True:
+            try:
+                (command, data) = self.ser.readMessage()
+                if command == '1':
+                    self.newPacket(data)
+                elif command == '2':
+                    self.free.release()
+                elif command:
+                    while True:
+                        pass
+            except Exception as e:
+                print e
+
+    def newPacket(self, data):
+        print "received:", list(data)
+        self.packets.put(data)
+
+    def gotPacket(self):
+        return not self.packets.empty()
+
+    def getPacket(self):
+        return self.packets.get()
+
+    def sendPacket(self, packet):
+        self.writeCommand('1', packet)
+
+    def setPacketLength(self, length):
+        self.free.acquire()
+        self.ser.writeMessage('6', '%c'%length)
diff --git a/tools/game/r0ketrem0te/serialinterface.py b/tools/game/r0ketrem0te/serialinterface.py
new file mode 100644
index 0000000..67821c1
--- /dev/null
+++ b/tools/game/r0ketrem0te/serialinterface.py
@@ -0,0 +1,92 @@
+import serial
+import string
+import sys
+import time
+
+class SerialInterface:
+    def  __init__ ( self, path2device, baudrate, timeout=0):
+      self.portopen = False
+      while not self.portopen:
+        try:
+            self.ser = serial.Serial(path2device, baudrate)
+            self.path2device = path2device
+            self.baudrate = baudrate
+            self.timeout = timeout+1
+            self.ser.flushInput()
+            self.ser.flushOutput()
+            if timeout:
+                self.ser.setTimeout(timeout+1)
+            self.portopen = True
+        except serial.SerialException:
+            print "exception while opening"
+            pass
+        time.sleep(1)
+      #print "done"
+    def close(self):
+        try:
+            self.portopen = False
+            self.ser.close()
+        except serial.SerialException:
+            pass
+    def reinit(self):
+        self.close()
+        print "reopening"
+        while not self.portopen:
+            self.__init__(self.path2device, self.baudrate, self.timeout)
+            time.sleep(1)
+        print "done"
+
+    def writeMessage(self,command,message):
+        enc = "\\"+ command + message.replace('\\','\\\\') + "\\0";
+        #print 'writing %s' % list(enc)
+        try:
+            self.ser.write(enc)
+        except :
+            pass
+            #self.reinit()
+
+    def readMessage(self):
+        data = ""
+        escaped = False
+        stop = False
+        start = False
+        inframe = False
+        command = ''
+        while True:
+            starttime = time.time()
+            c = self.ser.read(1)
+            endtime = time.time()
+            if len(c) == 0:             #A timout occured
+                if endtime-starttime < self.timeout - 1:
+                    print "port broken"
+                    self.reinit()
+                    raise Exception()
+                else:
+                    #print 'TIMEOUT'
+                    return (False, '')
+            if escaped:
+                if c == '\\':
+                    d = '\\'
+                elif c == '0':
+                    stop = True
+                    inframe = False
+                else:
+                    start = True
+                    inframe = True
+                    command = c
+                    data = ""
+                escaped = False
+            elif c == '\\':
+                escaped = 1
+            else:
+                d = c
+                
+            if start and inframe:
+                start = False
+            elif stop:
+                #print 'received message: len=%d data=%s'%(len(data),data)
+                #print 'received message. command=',command, "data=" ,list(data)
+                return (command, data)
+            elif escaped == False and inframe:
+                data += str(d)
+
diff --git a/tools/game/setup.py b/tools/game/setup.py
new file mode 100644
index 0000000..9ef3851
--- /dev/null
+++ b/tools/game/setup.py
@@ -0,0 +1,5 @@
+from distutils.core import setup
+setup(name='r0ketrem0te',
+      version='1.0',
+      packages=['r0ketrem0te'],
+      )
diff --git a/tools/game/simpletest.py b/tools/game/simpletest.py
new file mode 100644
index 0000000..f757cae
--- /dev/null
+++ b/tools/game/simpletest.py
@@ -0,0 +1,11 @@
+import r0ketrem0te.rem0te
+import time
+r = r0ketrem0te.rem0te.r0ket('/dev/ttyACM0')
+
+while True:
+    r.sendPacket("\x20GA\x00\x00\x00\x00\x01\x02\x03\x04\x01\x02\x03\x01\x02\x51\x01\x02\x03\x04\x00test\x00\x06\x07\x08")
+    time.sleep(1)
+    #packet = r.getPacket()
+    #print list(packet)
+    #r.sendPacket('12345678901234567890123456789012')
+