[PATCH] u-blox: ignore non-AT ttyACM interfaces

[Matthew Starr]

> -----Original Message-----
> From: Reinhard Speyerer [mailto:rspmn at arcor.de]
> Sent: Tuesday, April 10, 2018 4:23 PM
> To: Matthew Starr
> Cc: Dan Williams; modemmanager-devel at lists.freedesktop.org
> Subject: Re: [PATCH] u-blox: ignore non-AT ttyACM interfaces
> 
> On Tue, Apr 10, 2018 at 07:58:07PM +0000, Matthew Starr wrote:
> > > -----Original Message-----
> > > From: Dan Williams [mailto:dcbw at redhat.com]
> > > Sent: Tuesday, April 10, 2018 1:17 PM
> > > To: Matthew Starr; modemmanager-devel at lists.freedesktop.org
> > > Subject: Re: [PATCH] u-blox: ignore non-AT ttyACM interfaces
> > >
> > > On Tue, 2018-04-10 at 17:30 +0000, Matthew Starr wrote:
> > > > For the TOBY-R2, LISA-R2, and LARA-R2, the only valid AT ports are
> > > > ttyACM0, ttyACM1, and ttyACM2.  All other ttyACM ports cause MM to
> > > > wait 20-30 seconds probing the port on startup.
> > > >
> > > > Ignoring the non-AT ttyACM ports allows MM to not wait 20-30
> > > > seconds probing and therefore startup much faster with these
> modems.
> > >
> > > Is the "primary log for diagnostics" a QCDM/DIAG port?
> >
> > I am not sure what the usage of the "primary log for diagnostics" port it
> used for.  It is just named that in the datasheet and sometimes called the
> trace log.  I attempted to connect to it at various baud rates but no response.
> I have a feeling it is for u-blox only use, maybe for certification.  There is no
> documentation that I can find that actually tells what the port is used for,
> how to communicate with it, and how to configure it.  There is the AT+USIO
> command which is only supported by the u-blox SARA modems which allows
> some configuration of the log, but it doesn't look like that command is
> supported by any of the modems I added.
> 
> Hi Matthew,
> 
> do these modems support the AT+TRACE? command on the AT port? If yes
> this port is probably an Intel trace port and not a Qualcomm QCDM/DIAG
> port.
> 
> Regards,
> Reinhard

It is not documented in the u-blox documentation, but the AT+TRACE? command did provide a valid response:
AT+TRACE?
+TRACE: 0,115200,"ap=0;st=0;db=0;pr=0;bt=0;lt=0;li=0;ga=0;ae=0","DTM",0

Matthew

> 
> >
> > >
> > > Also, does the GNSS port spit out NMEA when location services are
> enabled?
> > > If so we may want to tag that port (but still ignore it) and then
> > > advertise that port as the "unmanaged" location port.
> >
> > The GNSS port does output NMEA at 9600 baud when location services are
> enabled (like with AT+UGPS).  How would you tag the port and still ignore it?
> How do you advertise the port as unmanaged?
> >
> > Matthew
> >
> > >
> > > Dan
> > >
> > > > ---
> > > >  plugins/ublox/77-mm-ublox-port-types.rules | 35
> > > > ++++++++++++++++++++++++++++++
> > > >  1 file changed, 35 insertions(+)
> > > >
> > > > diff --git a/plugins/ublox/77-mm-ublox-port-types.rules
> > > > b/plugins/ublox/77-mm-ublox-port-types.rules
> > > > index cb77f0e0..31128dac 100644
> > > > --- a/plugins/ublox/77-mm-ublox-port-types.rules
> > > > +++ b/plugins/ublox/77-mm-ublox-port-types.rules
> > > > @@ -16,4 +16,39 @@ ATTRS{idVendor}=="1546",
> > > ATTRS{idProduct}=="1010",
> > > > ENV{.MM_USBIFNUM}=="02", ENV{  ATTRS{idVendor}=="1546",
> > > > ATTRS{idProduct}=="1010", ENV{.MM_USBIFNUM}=="04",
> > > > ENV{ID_MM_PORT_IGNORE}="1"
> > > >  ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1010",
> > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > >
> > > > +# TOBY-R2 port types
> > > > +#  ttyACM0 (if #0): primary
> > > > +#  ttyACM1 (if #2): secondary
> > > > +#  ttyACM2 (if #4): tertiary
> > > > +#  ttyACM3 (if #6): GNSS Tunneling (ignore) #  ttyACM4 (if #8):
> > > > +SIM Access Profile (ignore) #  ttyACM5 (if #10): Primary Log for
> > > > +diagnostics (ignore) ATTRS{idVendor}=="1546",
> > > > +ATTRS{idProduct}=="1107",
> > > > ENV{.MM_USBIFNUM}=="06", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1107",
> > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1107",
> > > > ENV{.MM_USBIFNUM}=="0a", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +
> > > > +# LARA-R2 port types
> > > > +#  ttyACM0 (if #0): primary
> > > > +#  ttyACM1 (if #2): secondary
> > > > +#  ttyACM2 (if #4): tertiary
> > > > +#  ttyACM3 (if #6): GNSS Tunneling (ignore) #  ttyACM4 (if #8):
> > > > +SIM Access Profile (ignore) #  ttyACM5 (if #10): Primary Log for
> > > > +diagnostics (ignore) ATTRS{idVendor}=="1546",
> > > > +ATTRS{idProduct}=="110a",
> > > > ENV{.MM_USBIFNUM}=="06", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="110a",
> > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="110a",
> > > > ENV{.MM_USBIFNUM}=="0a", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +
> > > > +# LISA-U2 port types
> > > > +#  ttyACM0 (if #0): primary
> > > > +#  ttyACM1 (if #2): secondary
> > > > +#  ttyACM2 (if #4): tertiary
> > > > +#  ttyACM3 (if #6): GNSS Tunneling (ignore) #  ttyACM4 (if #8):
> > > > +Primary Log for diagnostics (ignore) #  ttyACM5 (if #10):
> > > > +Secondary Log for diagnostics (ignore) #  ttyACM6 (if #12): SAP
> > > > +(SIM Access
> > > > +Profile) (ignore) ATTRS{idVendor}=="1546",
> > > > +ATTRS{idProduct}=="1102",
> > > > ENV{.MM_USBIFNUM}=="06", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102",
> > > > ENV{.MM_USBIFNUM}=="08", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102",
> > > > ENV{.MM_USBIFNUM}=="0a", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +ATTRS{idVendor}=="1546", ATTRS{idProduct}=="1102",
> > > > ENV{.MM_USBIFNUM}=="0c", ENV{ID_MM_PORT_IGNORE}="1"
> > > > +
> > > >  LABEL="mm_ublox_port_types_end"
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