Hey Alex
> -----Original Message-----
> From: Aleksander Morgado <aleksan...@aleksander.es>
> Sent: 06 December 2020 07:42
> To: Marc Murphy <marcm...@marcm.co.uk>
> Cc: modemmanager-devel@lists.freedesktop.org
> Subject: Re: SierraWireless MC7430
>
> Hey Marc,
>
> > I am trying a new modem on my system and some weird things are
> happening. Trying to get the gps to come up but its not being shown as
> available but the mm debug shows there is a port there. Wondering how I
> can debug this to get it enabled ?
> >
> > ModemManager[248]: <debug> [000000040.585164] [plugin manager) task
> > 0,ttyUSB1: started
> > ModemManager[248]: <debug> [000000040.586050] [plugin manager] task
> 0,ttyUSB1: checking with plugin 'Sierra'
> > ModemManager[248]: <debug> [000000040.587130] (Sierra) [ttyUSB1]
> probe required: 'at, qcdm'
> > ModemManager[248]: <debug> [000000040.588107] (tty/ttyUSB1) GPS port
> > detected
> > ModemManager[248]: <debug> [000000040.588928] (tty/ttyUSB1) port is
> > not AT-capable
> > ModemManager[248]: <debug> [000000040.589703] (tty/ttyUSB1) port is
> > not QCDM-capable
> > ModemManager[248]: <debug> [000000040.590784] (tty/ttyUSB1) port
> > probing finished: no more probings needed
> >
> > ModemManager[248]: <debug> [000000042.746064] AT port 'tty/ttyUSB2'
> > flagged as primary
> > ModemManager[248]: <debug> [000000042.746492] (ttyUSB2) type 'at'
> > claimed by
> > /sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/1
> > -1/1-1.2
> > ModemManager[248]: <debug> [000000042.747188] (ttyUSB1) type 'gps'
> > claimed by
> > /sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/1
> > -1/1-1.2
> > ModemManager[248]: <debug> [000000042.747802] (ttyUSB0) type 'qcdm'
> > claimed by
> > /sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/1
> > -1/1-1.2
> > ModemManager[248]: <debug> [000000042.748239]
> > (/sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/
> > 1-1/1-1.2) tty/ttyUSB2 at (primary)
> > ModemManager[248]: <debug> [000000042.748544]
> > (/sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/
> > 1-1/1-1.2) tty/ttyUSB2 data (primary)
> > ModemManager[248]: <debug> [000000042.748879]
> > (/sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/
> > 1-1/1-1.2) tty/ttyUSB0 qcdm
> > ModemManager[248]: <debug> [000000042.749150]
> > (/sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/
> > 1-1/1-1.2) tty/ttyUSB1 gps (nmea)
> >
> >
> > # mmcli -m 0
> > --------------------------------
> > General | dbus path:
> /org/freedesktop/ModemManager1/Modem/0
> > | device id: 386fa1053746e4f1364aeecc41fa83d11a968985
> > --------------------------------
> > Hardware | manufacturer: Sierra Wireless, Incorporated
> > | model: MC7430
> > | firmware revision: SWI9X30C_02.24.05.06 r7040 CARMD-EV-
> FRMWR2 2017/05/19 06:23:09
> > | supported: gsm-umts, lte
> > | current: gsm-umts, lte
> > | equipment id: XXXXXXXXX
> > --------------------------------
> > System | device:
> /sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-
> hdrc.1/usb1/1-1/1-1.2
> > | drivers: qcserial, qmi_wwan
> > | plugin: Sierra
> > | primary port: ttyUSB2
> > | ports: wwan1 (unknown), ttyUSB0 (qcdm), ttyUSB2
> > (at),
> > | wwan0 (unknown), ttyUSB1 (gps)
>
> I assume this is your own custom system build? If so, I think there's some
> kernel driver missing because we're not seeing the cdc-wdm ports associated
> to the wwan net ports. Do you have both the qmi-wwan and the cdc-wdm
> kernel drivers enabled?
Yes both are enabled and loaded
# lsmod
Module Size Used by Not tainted
qmi_wwan 28672 0
cdc_wdm 20480 1 qmi_wwan
qcserial 16384 2
usb_wwan 20480 1 qcserial
usbnet 36864 1 qmi_wwan
mii 16384 1 usbnet
usbserial 36864 6 qcserial,usb_wwan
[ 8.689533] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 8.871950] usb 1-1: New USB device found, idVendor=0424, idProduct=2514,
bcdDevice= b.b3
[ 8.881159] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 8.905997] hub 1-1:1.0: USB hub found
[ 8.911199] hub 1-1:1.0: 4 ports detected
[ 9.239539] usb 1-1.2: new high-speed USB device number 3 using musb-hdrc
[ 9.371276] usb 1-1.2: config 1 has an invalid interface number: 8 but max
is 4
[ 9.378681] usb 1-1.2: config 1 has an invalid interface number: 10 but max
is 4
[ 9.386366] usb 1-1.2: config 1 has no interface number 1
[ 9.391927] usb 1-1.2: config 1 has no interface number 4
[ 9.402681] usb 1-1.2: New USB device found, idVendor=1199, idProduct=9071,
bcdDevice= 0.06
[ 9.411289] usb 1-1.2: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[ 9.418665] usb 1-1.2: Product: Sierra Wireless MC7430 Qualcomm® Snapdragon™
X7 LTE-A
[ 9.426961] usb 1-1.2: Manufacturer: Sierra Wireless, Incorporated
[ 9.433299] usb 1-1.2: SerialNumber: LU95130179041024
[ 10.138349] usbcore: registered new interface driver usbserial_generic
[ 10.146423] usbserial: USB Serial support registered for generic
[ 10.212234] usbcore: registered new interface driver qcserial
[ 10.218308] usbserial: USB Serial support registered for Qualcomm USB modem
[ 10.232214] usbcore: registered new interface driver cdc_wdm
[ 10.257791] qcserial 1-1.2:1.0: Qualcomm USB modem converter detected
[ 10.268589] usb 1-1.2: Qualcomm USB modem converter now attached to ttyUSB0
[ 10.280953] qcserial 1-1.2:1.2: Qualcomm USB modem converter detected
[ 10.291259] usb 1-1.2: Qualcomm USB modem converter now attached to ttyUSB1
[ 10.301081] qcserial 1-1.2:1.3: Qualcomm USB modem converter detected
[ 10.311695] usb 1-1.2: Qualcomm USB modem converter now attached to ttyUSB2
[ 10.464026] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device
[ 10.475160] qmi_wwan 1-1.2:1.8 wwan0: register 'qmi_wwan' at
usb-musb-hdrc.1-1.2, WWAN/QMI device, 16:6b:77:d4:06:45
[ 10.490347] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device
[ 10.497872] qmi_wwan 1-1.2:1.10 wwan1: register 'qmi_wwan' at
usb-musb-hdrc.1-1.2, WWAN/QMI device, 16:6b:77:d4:06:45
[ 10.509349] usbcore: registered new interface driver qmi_wwan
>
> > --------------------------------
> > Numbers | own: +XXXXXX
> > --------------------------------
> > Status | unlock retries: sim-pin (3), sim-puk (10)
> > | state: enabled
> > | power state: on
> > | signal quality: 0% (cached)
> > --------------------------------
> > Modes | supported: allowed: 2g, 3g, 4g; preferred: none
> > | current: allowed: 2g, 3g, 4g; preferred: none
> > --------------------------------
> > IP | supported: ipv4, ipv6, ipv4v6
> > --------------------------------
> > 3GPP | imei: XXXXXXXX
> > | registration: idle
> > --------------------------------
> > 3GPP EPS | ue mode of operation: csps-2
> > --------------------------------
> > SIM | dbus path: /org/freedesktop/ModemManager1/SIM/0
> >
> >
> >
> > # mmcli -m 0 --location-status
> > ------------------------
> > Location | capabilities: 3gpp-lac-ci
> > | enabled: 3gpp-lac-ci
> > | signals: no
> >
> >
> > Any pointers on how to change the gps port to be used correctly ?
> >
>
> The GPS support for these modules is not implemented in ModemManager
> using the TTY port (even if the port is flagged as GPS); it would be
> possible to
> do so, it's just not implemented.
>
> But we do allow QMI-based GPS management in the MC7455 in QMI mode,
> using the QMI LOC service. We just need to detect the modem in QMI mode,
> and for that we need the QMI control ports (cdc-wdm) to be exposed by the
> system.
If it works for the MC7455 and EM7455 should work for the MC7430 it’s the same
qualcomm family .
[ 9.578394] usb 1-1.2: Product: Sierra Wireless MC7455 Qualcomm® Snapdragon™
X7 LTE-A
[ 9.418665] usb 1-1.2: Product: Sierra Wireless MC7430 Qualcomm® Snapdragon™
X7 LTE-A
So they should be registered:
[ 10.464026] qmi_wwan 1-1.2:1.8: cdc-wdm0: USB WDM device
[ 10.475160] qmi_wwan 1-1.2:1.8 wwan0: register 'qmi_wwan' at
usb-musb-hdrc.1-1.2, WWAN/QMI device, 16:6b:77:d4:06:45
[ 10.490347] qmi_wwan 1-1.2:1.10: cdc-wdm1: USB WDM device
[ 10.497872] qmi_wwan 1-1.2:1.10 wwan1: register 'qmi_wwan' at
usb-musb-hdrc.1-1.2, WWAN/QMI device, 16:6b:77:d4:06:45
[ 10.509349] usbcore: registered new interface driver qmi_wwan
# ls -l /dev/cdc*
crw------- 1 root root 180, 176 Jan 1 00:00 /dev/cdc-wdm0
crw------- 1 root root 180, 177 Jan 1 00:00 /dev/cdc-wdm1
But not shown as being detected with mmcli
--------------------------------
System | device:
/sys/devices/platform/ocp/47400000.usb/47401c00.usb/musb-hdrc.1/usb1/1-1/1-1.2
| drivers: qcserial, qmi_wwan
| plugin: Sierra
| primary port: ttyUSB2
| ports: wwan1 (unknown), ttyUSB0 (qcdm), ttyUSB2
(at),
| wwan0 (unknown), ttyUSB1 (gps)
--------------------------------
I have also checked and MM and NM have been built with qmi and mbim support.
Anything else I can do ?
Thanks
Marc
>
> --
> Aleksander
> https://aleksander.es
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