Re: SIMCOM support

[Viallard Anthony <viallard@syscom-instruments.com>]

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On 24. 01. 13 17:21, Denis Kenzior wrote:

> How closely related is this one to SIMCOM 900? We already do have a
> plugin for it in the tree, so it might be a good idea to merge the two
> if they are closely related.

I don't known if SIM900 works with my driver plugin. SIMCOM were not 
given us this information whereas we inquired them. It will be glad if 
someone check it.

The only main difference i see between the two plugins, it's the 
AT+CSCS="GSM" command. I don't exactly why there is this command. Maybe 
its a behavior need it to work correctly with the operator where the guy 
has wrote the code and done the test. If someone tell me how to check 
(with an AT command ?) if we need this command, I will do the job.

In the SIMCOM doc, I see this about AT+CSCS :

  - “IRA” : International reference alphabet.
  - “GSM” : GSM default alphabet; this setting causes easily software 
flow control (XON /XOFF) problems.
  - “UCS2” 16-bit universal multiple-octet coded character set; UCS2 
character strings are converted to hexadecimal numbers from 0000 to FFFF.

>
> Please use git send-email to send patches.
>

ok.

> oFono core expects the sim atom driver to return from PIN entry function
> when the SIM initialization procedures have been completed. Many modems
> have an unsolicited notification that is fired when this is done, to
> avoid CPIN? polling. Are you saying your modem fires off a 'CPIN: READY'
> as an unsolicited notification? If so, then you can follow the same type
> of mechanism as VENDOR_IFX or VENDOR_STE
>

Right. My modem fires off a 'CPIN: READY' as an unsolicited 
notification. I will check the VENDOR_IFX or VENDOR_STE mechanism.

>> * I would like to do a reset of the modem at start and at end of ofono
>> life (with AT+CFUN=6 or AT+CRESET). The purpose is having a modem always
>> in init state for ofono and the others programs. Do you think its a good
>> idea ?
>>
>
> In general that is not desirable. The modem should be initialized when
> the enable driver method is called. Why do you want to do this?

I guessed it will be nicer to have this but if you say no, ok, it was 
just an idea to have always a chips in same state at start and when 
ofono stops.

Thanks,
avd.