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44 Commits

Author SHA1 Message Date
Vadim Yanitskiy 23b560197f DbgMuxConnHandler: new abstract class for connection handlers 2023-01-22 22:34:42 +06:00
Vadim Yanitskiy 2b0342d29b DbgMuxPeer: spawn two threads for handling Rx/Tx messages 2023-01-18 01:44:38 +06:00
Vadim Yanitskiy cf22e4a697 sedbgmux-shell.py: print all logging messages with CR 
Let the logging messages overwrite the cmd2 prompt!
 2023-01-18 01:44:35 +06:00
Vadim Yanitskiy 55665460b8 sedbgmux-shell.py: enable cmd2.debug if -v is passed 2023-01-17 03:15:28 +06:00
Vadim Yanitskiy 1269ebc098 sedbgmux-shell.py: do not employ ArgumentDefaultsHelpFormatter 2023-01-17 02:53:23 +06:00
Vadim Yanitskiy efaaaa1a7d sedbgmux-shell.py: cosmetic: use lowercase in help strings 2023-01-17 02:29:53 +06:00
Vadim Yanitskiy 2557e130f6 sedbgmux-shell.py: remove unneeded import of enum 2023-01-17 02:22:11 +06:00
Vadim Yanitskiy b8b4f4838d DbgMuxPeer: fix recv(): Ack shall not increment Nr counter 
I was aware that sending an Ack shall not increment the Ns counter,
but somehow didn't take into account that the Nr counter shall not
be incremented on receipt of an Ack either.
 2023-01-16 22:12:03 +06:00
Vadim Yanitskiy 7eb8444912 sedbgmux-shell.py: add -v/--verbose for debug logging 2023-01-16 22:10:34 +06:00
Vadim Yanitskiy d0ba77eb00 Add dump samples for F3607gw, F5521gw, and SE K800i 2023-01-16 13:53:53 +06:00
Vadim Yanitskiy e0538ea1c3 sedbgmux-dump.py: automatic dump format detection 2023-01-16 13:53:53 +06:00
Vadim Yanitskiy a378018178 sedbgmux-dump.py: add support for parsing socat hexdumps 2023-01-16 13:53:53 +06:00
Vadim Yanitskiy 4c8c1a1734 sedbgmux-dump.py: new tool for managing DebugMux dumps 2023-01-16 13:53:53 +06:00
Vadim Yanitskiy 56b0ad8e6e Implement optional dumping of DebugMux frames to file 2023-01-16 13:53:25 +06:00
Vadim Yanitskiy 5b2c57422d DbgMuxIO: separate modem I/O into its own file 2023-01-16 13:53:25 +06:00
Vadim Yanitskiy ca57d7c6c5 Rework project hierarchy: group core files into a module 2023-01-14 21:58:19 +06:00
Vadim Yanitskiy a806eea9ad DbgMuxIO: drop unused 'opts' argument of connect() 2023-01-14 02:59:57 +06:00
Vadim Yanitskiy f9d571ee70 Rename Transport[Modem,IOError] to DbgMuxIO[Modem,Error] 2023-01-14 02:59:17 +06:00
Vadim Yanitskiy cb24ec5a2d Rename sedbgmux.py to sedbgmux-shell.py 2023-01-14 02:52:00 +06:00
Vadim Yanitskiy 569e5d3e9c SEDbgMuxApp: use cmd2.Fg instead of deprecated cmd2.fg 
In v2.3.0 both cmd2.{fg,bg} have been deprecated in favour of cmd2.{Fg,Bg}.
In v2.4.0 both cmd2.{fg,bg} have been removed.

See https://github.com/python-cmd2/cmd2/blob/master/CHANGELOG.md
 2022-07-14 18:25:45 +07:00
Vadim Yanitskiy 530975eff2 SEDbgMuxApp: properly handle peer.recv() returning None 
In 2990cc14b8 I introduced a regression,
which affects the 'establish' command: if no data is received from a
Data Provider during 500 ms, the application crashes:

    File "sedbgmux.py", line 151, in do_establish
      if f['MsgType'] != DbgMuxFrame.MsgType.ConnData:
  TypeError: 'NoneType' object is not subscriptable

This is happening because peer.recv() is returning None.
 2022-07-14 17:55:29 +07:00
Vadim Yanitskiy 2990cc14b8 SEDbgMuxApp: use non-zero default serial port read timeout 
This is required for a follow-up change moving DebugMux I/O handling
into separate threads.  We need to be able to stop a thread, which
is executing blocking self.io.read() call.
 2022-06-20 22:36:17 +07:00
Vadim Yanitskiy f9759d1024 Transport: mark abstract methods with @abc.abstractmethod 2022-06-20 18:48:17 +07:00
Vadim Yanitskiy 138af0da7a DbgMuxPeer: calculate and check the FCS of Rx frames 2022-03-29 00:24:17 +03:00
Vadim Yanitskiy e71875aa12 DbgMuxPeer: get away from using construct's parse_stream() 2022-03-29 00:24:02 +03:00
Vadim Yanitskiy 45548e0a3e TransportModem: raise TransportIOError exception on I/O error 2022-03-28 04:44:31 +03:00
Vadim Yanitskiy ea6018b822 TransportModem: properly ignore the modem events like '*EMRDY' 
Ericsson's mini-PCIe modems are known to send such events.
 2022-03-28 02:26:50 +03:00
Vadim Yanitskiy 9034073630 SEDbgMuxApp: separate modem transport into its own module 2022-03-28 01:19:58 +03:00
Vadim Yanitskiy 37426267f4 SEDbgMuxApp: fix do_ping(): ACKnowledge Pong message 2022-03-28 01:03:37 +03:00
Vadim Yanitskiy 88553524a3 DbgMuxFrame: add tentative FlowControl message definition 2022-03-27 22:54:47 +03:00
Vadim Yanitskiy 7c2094dc44 DbgMuxPeer: use %03u for logging Rx/Tx counter values 
This makes the header length consistent in logging messages.
 2022-03-27 22:51:52 +03:00
Vadim Yanitskiy 45788b2783 cosmetic: switch to consistent four-spaces indent (using autopep8) 2022-03-27 22:50:30 +03:00
Vadim Yanitskiy 79c2124e0c Add requirements.txt listing all dependencies 2022-01-21 02:08:58 +06:00
Vadim Yanitskiy d1310b4628 Mark sedbgmux.py as executable 2022-01-21 01:48:30 +06:00
Vadim Yanitskiy 1f57d3dd4a SEDbgMuxApp: fix C0325: unnecessary parens after 'assert' keyword 2022-01-19 00:38:28 +06:00
Vadim Yanitskiy 712c2b79e5 DbgMuxPeer: encode/decode inner messages in send()/recv() 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy ba66506052 DbgMuxFrame: add complete inner message definition 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy 0f7605b189 SEDbgMuxApp: disable DebugMux commands while not connected 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy 1c9a74c1e0 SEDbgMuxApp: group commands into cmd2 categories 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy ee4731aad7 SEDbgMuxApp: add a command to show connection info 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy e09c227661 SEDbgMuxApp: handle ConnEstablished with DPRef=0xffff 
This format string found in firmware image of a modem:

  DebugMux[DL,HandleConnectReq] Could not find DPRef 0x%04X;
                                sending Connect Response with ConnRef=0xFFFF

gives us a hint on what happens when ConnEstablish message contains
an unknown DPRef that was not announced or has became inactive.
 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy 4d19f594c3 Initial DebugMux client application 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy 97cd6fb4d3 Initial DebugMux protocol definition 2022-01-18 16:22:54 +06:00
Vadim Yanitskiy 3d37f3e261 Initial commit 2022-01-18 16:22:54 +06:00