I have not been able to make any headway on this. If anyone has any ideas,
that would help, I would greatly appreciate it.
Thanks,
-Tony
On Sat, Jun 7, 2008 at 1:27 PM, Tony Kirkham <[EMAIL PROTECTED]> wrote:
> Hi, guys,
>
> I'm back with more questions. I am still trying to get kannel to talk to a
> Multi-Tech MTCBA-G-EN-F4 modem that connects via an ethernet port.
>
> If you have good knowledge of the smsc_at driver code I could really use
> your help.
>
> I have been hacking away at the smsc_at.c code and have wrapped the code to
> detect the modem speed in an
> if ( privdata->is_serial ) { ... }
> statement so that this won't be attempted because, apparently, you cannot
> detect this modems speed.
>
> I thought this would solve my problem but, alas, it did not. I have now
> worked my way down into the at2_read_buffer() call and I think that this is
> where the problem is occurring. I have placed a few DEBUG log file writes
> in locations to show what is happening. I am completely new to
> communicating to modems and via raw tcp so I do not know what should be
> expected. However, I don't think the at2_read_buffer() call is getting
> anything. Below, is a reduced log file for the at device containing what is
> written from a startup - shutdown cycle of bearerbox.
>
> The biggest indicators that I see are that privdata->lib = strange
> characters and at2_read_line() never finds an end-of-line character. The
> at2_read_buffer() call only executes a read the first time for the first AT
> command. After that it seems like the state of something is stuck because
> the select() call only returns 0 causing the at2_read_buffer() call to
> return NULL before the read() is attempted.
>
> If anyone has some insight into this I would greatly appreciate it. I am
> using the code in the source download. I have not pulled anything from the
> cvs repository.
>
> Thank you very much,
>
> -Tony
>
> log file
>
> 1 2008-06-07 12:51:06 [15527] [6] INFO: AT2[vzn00]: opening device
> 2 2008-06-07 12:51:06 [15527] [6] DEBUG: AT2[vzn00]: device opened
> 3 2008-06-07 12:51:06 [15527] [6] INFO: AT2[vzn00]: init device
> 4 2008-06-07 12:51:06 [15527] [6] DEBUG: AT2[vzn00]: --> ATZ^M
> 5 2008-06-07 12:51:06 [15527] [6] DEBUG: AT2[vzn00]: --> ATZ^M
> -response: 4
> 6 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_wait_modem_command:
> before while cur_time <= end_time
> 7 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_read_buffer: after
> select, ret: 1
> 8 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_read_buffer: before
> read, ret: 1
> 9 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_read_buffer: after
> read, s: 12
> 10 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_read_line with
> gt_flag=0, gtloc=-1, lib=ÿý^Xÿý ÿý#ÿý'
> 11 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_read_line if eol ==
> -1 will return NULL eol: -1
> 12 2008-06-07 12:51:06 [15527] [6] DEBUG: in at2_read_buffer: after
> select, ret: 0
> 13 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_read_line with
> gt_flag=0, gtloc=-1, lib=ÿý^Xÿý ÿý#ÿý'
> 14 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_read_line if eol ==
> -1 will return NULL eol: -1
> ... 1000's of repetitions of the above 3 lines ...
> 15 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_wait_modem_command:
> Out of loop: cur_time: 1212864670, end_time: 1212864669
> 16 2008-06-07 12:51:10 [15527] [6] ERROR: AT2[vzn00]: Wrong or no
> answer to ATZ, ignoring
> 17 2008-06-07 12:51:10 [15527] [6] DEBUG: AT2[vzn00]: --> AT^M
> 18 2008-06-07 12:51:10 [15527] [6] DEBUG: AT2[vzn00]: --> AT^M
> -response: 3
> 19 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_wait_modem_command:
> before while cur_time <= end_time
> 20 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_read_buffer: after
> select, ret: 0
> 21 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_read_line with
> gt_flag=0, gtloc=-1, lib=ÿý^Xÿý ÿý#ÿý'
> 22 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_read_line if eol ==
> -1 will return NULL eol: -1
> ... 1000's of repetitions ...
> 23 2008-06-07 12:51:10 [15527] [6] DEBUG: in at2_read_buffer: after
> select, ret: 0
> 24 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_read_line with
> gt_flag=0, gtloc=-1, lib=ÿý^Xÿý ÿý#ÿý'
> 25 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_read_line if eol ==
> -1 will return NULL eol: -1
> 26 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_wait_modem_command:
> Out of loop: cur_time: 1212864674, end_time: 1212864673
> 27 2008-06-07 12:51:14 [15527] [6] ERROR: AT2[vzn00]: Wrong or no
> answer to AT. Trying again
> 28 2008-06-07 12:51:14 [15527] [6] DEBUG: AT2[vzn00]: --> AT^M
> 29 2008-06-07 12:51:14 [15527] [6] DEBUG: AT2[vzn00]: --> AT^M
> -response: 3
> 30 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_wait_modem_command:
> before while cur_time <= end_time
> 31 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_read_buffer: after
> select, ret: 0
> 32 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_read_line with
> gt_flag=0, gtloc=-1, lib=ÿý^Xÿý ÿý#ÿý'
> 33 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_read_line if eol ==
> -1 will return NULL eol: -1
> ... 1000's of repetitions ...
> 34 2008-06-07 12:51:14 [15527] [6] DEBUG: in at2_read_buffer: after
> select, ret: 0
> 35 2008-06-07 12:51:18 [15527] [6] DEBUG: in at2_read_line with
> gt_flag=0, gtloc=-1, lib=ÿý^Xÿý ÿý#ÿý'
> 36 2008-06-07 12:51:18 [15527] [6] DEBUG: in at2_read_line if eol ==
> -1 will return NULL eol: -1
> 37 2008-06-07 12:51:18 [15527] [6] DEBUG: in at2_wait_modem_command:
> Out of loop: cur_time: 1212864678, end_time: 1212864677
> 38 2008-06-07 12:51:18 [15527] [6] ERROR: AT2[vzn00]: Second attempt
> to send AT failed
> 39 2008-06-07 12:51:18 [15527] [6] ERROR: AT2[vzn00]: Opening failed.
> Terminating
> 40 2008-06-07 12:51:18 [15527] [6] INFO: AT2[vzn00]: closing device
> 41 2008-06-07 12:51:18 [15527] [6] INFO: AT2[vzn00]: closing device
> 42 2008-06-07 12:51:18 [15527] [6] DEBUG: Thread 6
> (gw/smsc/smsc_at.c:at2_device_thread) terminates.
>
>
>
