Move HWP encoder timeout packet log to debug level (#684)

* Move timeout packet log to debug level

* Setup agent to set loglevel based on env var

socs/agents/hwp_encoder/agent.py

@@ -52,6 +52,7 @@
 
 import argparse
 import calendar
+import os
 import select
 import socket
 import struct
@@ -365,7 +366,8 @@ def grab_and_parse_data(self):
                         # Clear self.data
                         self.data = ''
                     elif header == 0x1234:
-                        self.log.error('Received timeout packet.')
+                        # Expected behavior when HWP is not spinning
+                        self.log.debug('Received timeout packet.')
                         # Clear self.data
                         self.data = ''
                     else:
@@ -699,6 +701,9 @@ def make_parser(parser=None):
 
 # Portion of the code that runs
 def main(args=None):
+    # Start logging
+    txaio.start_logging(level=os.environ.get("LOGLEVEL", "info"))
+
     parser = make_parser()
     args = site_config.parse_args(agent_class='HWPBBBAgent',
                                   parser=parser,