Telit FN990: All supported/current modes not reported (MM 1.20.2)

[Daniele Palmas]

Hi Amol and Aleksander,

Il giorno lun 28 nov 2022 alle ore 12:19 Amol Lad <Amol.Lad at 4rf.com> ha scritto:
>
> Attaching full log and relevant portion seems below. No it's not regression. I just loaded 1.20.2 mainly for 5g support.
>

I've got  a bunch of changes fixing this and adding modes retrieval
through QMI (which makes more sense than using AT commands when
available), just need to find the time to polish and submit...

Regards,
Daniele

> ==
> <debug> [1669633765.148778] [modem0] no carrier config currently selected (default in use)
> <debug> [1669633765.149038] [modem0] device identifier built: 00001bc700001071359172390000176FN990TelitWirelessSolutions -> d04794b2e195986e2087001f45f6a4b81d1e3f16
> <debug> [1669633765.149153] [ttyUSB2/at] device open count is 2 (open)
> <debug> [1669633765.149226] [ttyUSB2/at] --> 'AT+WS46=?<CR>'
> <debug> [1669633765.163992] [ttyUSB2/at] <-- '<CR><LF>+WS46: (22,28,31,36-38,40)<CR><LF><CR><LF>OK<CR><LF>'
> <debug> [1669633765.164170] [modem0] (shared-telit) device allows (3GPP) mode combination: 3g
> <debug> [1669633765.164198] [modem0] (shared-telit) device allows (3GPP) mode combination: 4g
> <debug> [1669633765.164230] [modem0] (shared-telit) device allows (3GPP) mode combination: 3g, 4g
> <debug> [1669633765.164253] [modem0] (shared-telit) device allows (3GPP) mode combination: 5g
> <debug> [1669633765.164281] [modem0] (shared-telit) device allows (3GPP) mode combination: 4g, 5g
> <debug> [1669633765.164312] [modem0] (shared-telit) device allows (3GPP) mode combination: 3g, 4g, 5g
> <debug> [1669633765.164341] [modem0] (shared-telit) device allows (3GPP) mode combination: 3g, 5g
> <debug> [1669633765.164366] [modem0] filtering 7 supported mode combinations with 1 modes
> <debug> [1669633765.164390] [modem0] device supports 3 different mode combinations
> ===
> <debug> [1669633765.212244] [ttyUSB2/at] device open count is 2 (open)
> <debug> [1669633765.212331] [ttyUSB2/at] --> 'AT+WS46?<CR>'
> <debug> [1669633765.225404] [ttyUSB2/at] <-- '<CR><LF>+WS46: 37<CR><LF><CR><LF>OK<CR><LF>'
> <warn>  [1669633765.225529] [modem0] couldn't load current allowed/preferred modes: Couldn't parse unexpected +WS46 response: '+WS46: 37'
>
> From the FN990 AT command guide:
> AT+WS46=[<n>]
> <n> integer 38 WDS-Side Stack to be used by the TA.
> Values:
> 22 : UTRAN only
> 28 : E-UTRAN only
> 31 : UTRAN and E-UTRAN
> 36 : NG-RAN only
> 37 : NG-RAN and E-UTRAN
> 38 : NG-RAN, E-UTRAN and UTRAN
> 40 : NG-RAN and UTRAN
>
> ________________________________
> From: Aleksander Morgado <aleksandermj at chromium.org>
> Sent: Monday, November 28, 2022 4:03 PM
> To: Amol Lad <Amol.Lad at 4rf.com>
> Cc: Daniele Palmas <dnlplm at gmail.com>; ModemManager (development) <modemmanager-devel at lists.freedesktop.org>
> Subject: Re: Telit FN990: All supported/current modes not reported (MM 1.20.2)
>
> Hey,
>
> >
> > I'm trying Telit FN990 with MM 1.20.2 release and "supported" and "current" modes always report "4g" in MBIM mode. I believe it's reported correctly in QMI. It seems not all +WS46 combinations are supported in MBIM.
> >
> >   Modes     |              supported: allowed: 4g; preferred: none
> >             |                current: allowed: 4g; preferred: none
> >
>
> Could you please run MM with debug logs to see what the modem is replying?
>
> Also, just to confirm, this is not a regression, right?
>
> --
> Aleksander
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