2019-01-08 Fred Gleason <fredg@paravelsystems.com>

* Changed the PyPAD namespace from 'PyPAD' to 'pypad'.
	* Changed the installation location of PyPAD scripts from
	'@libdir@/rivendell/PyPAD/' to '@libdir@/rivendell/pypad/'.

apis/pypad/scripts/pypad_xmpad.py

@@ -0,0 +1,184 @@
+#!%PYTHON_BANGPATH%
+
+# pypad_xmpad.py
+#
+# Write PAD updates to a Sirius/XM channel
+#
+#   (C) Copyright 2018 Fred Gleason <fredg@paravelsystems.com>
+#
+#   This program is free software; you can redistribute it and/or modify
+#   it under the terms of the GNU General Public License version 2 as
+#   published by the Free Software Foundation.
+#
+#   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+
+import sys
+import syslog
+import configparser
+import serial
+import pypad
+
+XMPAD_DELIMITER='\02'
+# XMPAD_DELIMITER='\x7c' #(|)
+
+def eprint(*args,**kwargs):
+    print(*args,file=sys.stderr,**kwargs)
+
+
+def MakeA4(update,section):
+    a4='A4'
+
+    a4+=XMPAD_DELIMITER+'1'
+
+    field1=update.resolvePadFields(update.config().get(section,'FormatString1'),
+                                   pypad.ESCAPE_NONE)
+    a4+=XMPAD_DELIMITER+field1[0:16]
+
+    a4+='\n'
+
+    return a4
+
+def MakeA5(update,section):
+    a5='A5'
+
+    a5+=XMPAD_DELIMITER+'1'
+
+    field2=update.resolvePadFields(update.config().get(section,'FormatString2'),
+                                   pypad.ESCAPE_NONE)
+    a5+=XMPAD_DELIMITER+field2[0:16]
+
+    a5+='\n'
+
+    return a5
+
+
+def MakeB4(update,section):
+    b4='B-4'
+
+    #
+    # Recording flag
+    #
+    recording='1'
+    if update.config().get(section,'Recording').lower()=='yes':
+        recording='0'
+    b4+=XMPAD_DELIMITER+recording
+
+    b4+=XMPAD_DELIMITER+'1'
+
+    #
+    # Event duration
+    #
+    b4+=XMPAD_DELIMITER+str(update.padField(pypad.TYPE_NOW,pypad.FIELD_LENGTH)//432)
+
+    b4+=XMPAD_DELIMITER+'0'
+
+    #
+    # Display field sizes
+    #
+    disp1size=update.config().get(section,'DisplaySize1')
+    mask1=''
+    for i in range(int(disp1size)):
+        mask1+='1'
+    disp2size=update.config().get(section,'DisplaySize2')
+    mask2=''
+    for i in range(int(disp2size)):
+        mask2+='1'
+    disp2size=update.config().get(section,'DisplaySize2')
+    b4+=XMPAD_DELIMITER+disp1size
+    b4+=XMPAD_DELIMITER+disp2size
+    b4+=XMPAD_DELIMITER+mask1
+    b4+=XMPAD_DELIMITER+mask2
+
+    #
+    # Display field values
+    #
+    field1=update.resolvePadFields(update.config().get(section,'FormatString1'),
+                                   pypad.ESCAPE_NONE)
+    field2=update.resolvePadFields(update.config().get(section,'FormatString2'),
+                                   pypad.ESCAPE_NONE)
+    b4+=XMPAD_DELIMITER+field2[0:16]
+    b4+=XMPAD_DELIMITER+mask1
+    b4+=XMPAD_DELIMITER+mask2
+    b4+=XMPAD_DELIMITER+field1[0:16]
+
+    #
+    # Program ID
+    #
+    b4+=XMPAD_DELIMITER+update.config().get(section,'ProgramID')
+
+    #
+    # EOM
+    #
+    b4+='\n'
+
+    return b4
+
+
+def OpenSerialDevice(config,section):
+    devname=config.get(section,'Device')
+    speed=int(config.get(section,'Speed'))
+    parity=serial.PARITY_NONE
+    if int(config.get(section,'Parity'))==1:
+        parity=serial.PARITY_EVEN
+    if int(config.get(section,'Parity'))==2:
+        parity=serial.PARITY_ODD
+    bytesize=int(config.get(section,'WordSize'))
+    return serial.Serial(devname,speed,parity=parity,bytesize=bytesize)
+
+
+def ProcessTimer(config):
+    n=1
+    try:
+        while(True):
+            section='Serial'+str(n)
+            dev=OpenSerialDevice(config,section)
+            dev.write('H0\n'.encode('utf-8'))
+            dev.close()
+            n=n+1
+
+    except configparser.NoSectionError:
+        return
+
+def ProcessPad(update):
+    n=1
+    try:
+        while(True):
+            section='Serial'+str(n)
+            if update.shouldBeProcessed(section) and update.hasPadType(pypad.TYPE_NOW):
+                dev=OpenSerialDevice(update.config(),section)
+                b4=MakeB4(update,section)
+                a4=MakeA4(update,section)
+                a5=MakeA5(update,section)
+                dev.write(b4.encode('utf-8'))
+                dev.write(b4.encode('utf-8'))
+                dev.write(b4.encode('utf-8'))
+                dev.write(a4.encode('utf-8'))
+                dev.write(a5.encode('utf-8'))
+                dev.close()
+            n=n+1
+
+    except configparser.NoSectionError:
+        return
+
+#
+# 'Main' function
+#
+syslog.openlog(sys.argv[0].split('/')[-1])
+
+rcvr=pypad.Receiver()
+try:
+    rcvr.setConfigFile(sys.argv[3])
+except IndexError:
+    eprint('pypad_xmpad.py: USAGE: cmd <hostname> <port> <config>')
+    sys.exit(1)
+rcvr.setCallback(ProcessPad)
+rcvr.setTimerCallback(30,ProcessTimer)
+rcvr.start(sys.argv[1],int(sys.argv[2]))