Is there support for modem with a single UART port ? (SIM5320A with usb disconnected)
Enrico Mioso
mrkiko.rs at gmail.com
Mon Nov 18 17:11:18 UTC 2019
Hello!
Out of curiosity - how did it happen the USB port isn't wired? Plain curiosity. :)
Enrico
On Mon, 18 Nov 2019, Andrés Calderón wrote:
> Date: Mon, 18 Nov 2019 17:50:43
> From: Andrés Calderón <andresfcalderon at gmail.com>
> To: modemmanager-devel at lists.freedesktop.org
> Subject: Is there support for modem with a single UART port ? (SIM5320A with
> usb disconnected)
>
> Hi,
>
> I'm connected to a modem with a *single* serial port (Simcom SIM5320A with the USB port unwired)
>
> I can connect to Internet using the old way (writing my own chat scripts). But I couldn't do it using modemmanager. I have a lot of error messages from ModemManeger like that:
>
> "Couldn't refresh signal quality: 'No AT port available to run command'"
>
> Can ModemManager work with a single physical UART port? any guide here?
>
> Below I share more information about the issue
>
> Best regards,
>
> Andres Calderon
>
>
> =================================================
> # udevadm info /dev/ttyAMA0
>
> P: /devices/platform/soc/3f201000.serial/tty/ttyAMA0
> N: ttyAMA0
> L: 0
> S: serial0
> E: DEVPATH=/devices/platform/soc/3f201000.serial/tty/ttyAMA0
> E: DEVNAME=/dev/ttyAMA0
> E: MAJOR=204
> E: MINOR=64
> E: SUBSYSTEM=tty
> E: USEC_INITIALIZED=5122363
> E: ID_MM_CANDIDATE=1
> E: ID_MM_TTY_FLOW_CONTROL=none
> E: ID_MM_TTY_BAUDRATE=115200
> E: ID_MM_DEVICE_PROCESS=1
> E: ID_MM_PLATFORM_DRIVER_PROBE=1
> E: DEVLINKS=/dev/serial0
> E: TAGS=:systemd:
>
> =================================================
> # mmcli -m 0
> --------------------------
> General | dbus path: /org/freedesktop/ModemManager1/Modem/0
> | device id: 23b798cdd09c78be14e231127c48d70f5307a48e
> --------------------------
> Hardware | manufacturer: SIMCOM INCORPORATED
> | model: SIMCOM_SIM5320A
> | revision: 1575B13SIM5320A
> | supported: gsm-umts
> | current: gsm-umts
> | equipment id: 012813008537617
> --------------------------
> System | device: /sys/devices/platform/soc
> | drivers: uart-pl011
> | plugin: Generic
> | primary port: ttyAMA0
> | ports: ttyAMA0 (at)
> --------------------------
> Numbers | own: +573176760667
> --------------------------
> Status | unlock retries: sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)
> | state: disabled
> | power state: on
> | signal quality: 0% (cached)
> --------------------------
> Modes | supported: allowed: 2g, 3g; preferred: none
> | current: allowed: 2g, 3g; preferred: none
> --------------------------
> IP | supported: ipv4, ipv6
> --------------------------
> 3GPP | imei: 012813008537617
> --------------------------
>
>
> Andrés Calderón
>
>
> ====================MODEMMANAGER LOG====================
> ModemManager[1133]: <debug> [1574094017.402205] No specific IP family requested, defaulting to ipv4
> ModemManager[1133]: <debug> [1574094017.402298] No specific IP family requested, defaulting to ipv4
> ModemManager[1133]: <debug> [1574094017.402439] Looking for best CID...
> ModemManager[1133]: <debug> [1574094017.402551] (ttyAMA0) device open count is 6 (open)
> ModemManager[1133]: <debug> [1574094017.402722] (ttyAMA0) device open count is 5 (close)
> ModemManager[1133]: <debug> [1574094017.402865] (ttyAMA0): --> 'AT+COPS=3,0<CR>'
> ModemManager[1133]: <debug> [1574094017.420240] (ttyAMA0): <-- '<CR><LF>OK<CR><LF>'
> ModemManager[1133]: <debug> [1574094017.420584] (ttyAMA0) device open count is 4 (close)
> ModemManager[1133]: <debug> [1574094017.420786] (ttyAMA0): --> 'AT+COPS?<CR>'
> ModemManager[1133]: <debug> [1574094017.435034] (ttyAMA0): <-- '<CR><LF>+COPS:'
> ModemManager[1133]: <debug> [1574094017.435707] (ttyAMA0): <-- ' 0,0,"mo'
> ModemManager[1133]: <debug> [1574094017.436395] (ttyAMA0): <-- 'vistar",'
> ModemManager[1133]: <debug> [1574094017.437102] (ttyAMA0): <-- '2<CR><LF><CR><LF>OK<CR>'
> ModemManager[1133]: <debug> [1574094017.437484] (ttyAMA0): <-- '<LF>'
> ModemManager[1133]: <debug> [1574094017.438034] loaded Operator Name: movistar
> ModemManager[1133]: <info> [1574094017.438332] Modem /org/freedesktop/ModemManager1/Modem/0: 3GPP Registration state changed (registering -> home)
> ModemManager[1133]: <debug> [1574094017.438692] Will start keeping track of state for subsystem '3gpp'
> ModemManager[1133]: <debug> [1574094017.438854] (ttyAMA0) device open count is 3 (close)
> ModemManager[1133]: <debug> [1574094017.439624] (ttyAMA0): --> 'AT+CIND?<CR>'
> ModemManager[1133]: <debug> [1574094017.455505] (ttyAMA0): <-- '<CR><LF>+CIND:'
> ModemManager[1133]: <debug> [1574094017.456197] (ttyAMA0): <-- ' 4,4,1,0'
> ModemManager[1133]: <debug> [1574094017.456876] (ttyAMA0): <-- ',0,1,1,0'
> ModemManager[1133]: <debug> [1574094017.457569] (ttyAMA0): <-- '<CR><LF><CR><LF>OK<CR><LF>'
> ModemManager[1133]: <debug> [1574094017.458379] Modem /org/freedesktop/ModemManager1/Modem/0: signal quality updated (80)
> ModemManager[1133]: <debug> [1574094017.458750] (ttyAMA0) device open count is 2 (close)
> ModemManager[1133]: <debug> [1574094017.459450] Polling to refresh access technologies is unsupported
> ModemManager[1133]: <debug> [1574094017.459576] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094017.459730] (ttyAMA0): --> 'AT+CGDCONT?<CR>'
> ModemManager[1133]: <debug> [1574094017.477723] (ttyAMA0): <-- '<CR><LF>+CGDCO'
> ModemManager[1133]: <debug> [1574094017.478841] (ttyAMA0): <-- 'NT: 1,"I'
> ModemManager[1133]: <debug> [1574094017.479712] (ttyAMA0): <-- 'P","inte'
> ModemManager[1133]: <debug> [1574094017.480486] (ttyAMA0): <-- 'rnet.movistar.co'
> ModemManager[1133]: <debug> [1574094017.481402] (ttyAMA0): <-- 'm.co","0'
> ModemManager[1133]: <debug> [1574094017.482153] (ttyAMA0): <-- '.0.0.0",'
> ModemManager[1133]: <debug> [1574094017.482855] (ttyAMA0): <-- '0,0<CR><LF>+CG'
> ModemManager[1133]: <debug> [1574094017.483648] (ttyAMA0): <-- 'DCONT: 2'
> ModemManager[1133]: <debug> [1574094017.484484] (ttyAMA0): <-- ',"IP","w'
> ModemManager[1133]: <debug> [1574094017.485299] (ttyAMA0): <-- 'eb.colombiamovil'
> ModemManager[1133]: <debug> [1574094017.486231] (ttyAMA0): <-- '.com.co"'
> ModemManager[1133]: <debug> [1574094017.487040] (ttyAMA0): <-- ',"0.0.0.'
> ModemManager[1133]: <debug> [1574094017.487803] (ttyAMA0): <-- '0",0,0<CR><LF>'
> ModemManager[1133]: <debug> [1574094017.488707] (ttyAMA0): <-- '+CGDCONT'
> ModemManager[1133]: <debug> [1574094017.489554] (ttyAMA0): <-- ': 3,"IP","intern'
> ModemManager[1133]: <debug> [1574094017.490384] (ttyAMA0): <-- 'et.movis'
> ModemManager[1133]: <debug> [1574094017.491192] (ttyAMA0): <-- 'tar.com.'
> ModemManager[1133]: <debug> [1574094017.492093] (ttyAMA0): <-- 'co","0.0'
> ModemManager[1133]: <debug> [1574094017.492957] (ttyAMA0): <-- '.0.0",0,0<CR><LF>+CGDC'
> ModemManager[1133]: <debug> [1574094017.493782] (ttyAMA0): <-- 'ONT: 4,"'
> ModemManager[1133]: <debug> [1574094017.494623] (ttyAMA0): <-- 'IP","mov'
> ModemManager[1133]: <debug> [1574094017.495486] (ttyAMA0): <-- 'iletb.ne'
> ModemManager[1133]: <debug> [1574094017.496346] (ttyAMA0): <-- 't.co","0'
> ModemManager[1133]: <debug> [1574094017.497221] (ttyAMA0): <-- '.0.0.0",0,0<CR><LF><CR><LF>O'
> ModemManager[1133]: <debug> [1574094017.498106] (ttyAMA0): <-- 'K<CR><LF>'
> ModemManager[1133]: <debug> [1574094017.499204] Found '4' PDP contexts
> ModemManager[1133]: <debug> [1574094017.499335] PDP context [cid=1] [type='ipv4'] [apn='internet.movistar.com.co']
> ModemManager[1133]: <debug> [1574094017.499409] PDP context [cid=2] [type='ipv4'] [apn='web.colombiamovil.com.co']
> ModemManager[1133]: <debug> [1574094017.499481] PDP context [cid=3] [type='ipv4'] [apn='internet.movistar.com.co']
> ModemManager[1133]: <debug> [1574094017.499912] PDP context [cid=4] [type='ipv4'] [apn='moviletb.net.co']
> ModemManager[1133]: <debug> [1574094017.500030] Found PDP context with CID 1 and PDP type ipv4 for APN 'internet.movistar.com.co'
> ModemManager[1133]: <debug> [1574094017.500192] (ttyAMA0) device open count is 3 (open)
> ModemManager[1133]: <debug> [1574094017.500614] Connection through a plain serial AT port (ttyAMA0)
> ModemManager[1133]: <debug> [1574094017.500772] (ttyAMA0) device open count is 4 (open)
> ModemManager[1133]: <debug> [1574094017.501322] (ttyAMA0) device open count is 3 (close)
> ModemManager[1133]: <debug> [1574094017.501539] (ttyAMA0): --> 'ATD*99***1#<CR>'
> ModemManager[1133]: <debug> [1574094017.520418] (ttyAMA0): <-- '<CR><LF>CONNEC'
> ModemManager[1133]: <debug> [1574094017.521287] (ttyAMA0): <-- 'T 115200'
> ModemManager[1133]: <debug> [1574094017.522064] (ttyAMA0): <-- '<CR><LF>'
> ModemManager[1133]: <debug> [1574094017.522990] (ttyAMA0): port now connected
> ModemManager[1133]: <debug> [1574094017.523252] Connected bearer '/org/freedesktop/ModemManager1/Bearer/0'
> ModemManager[1133]: <info> [1574094017.524890] Modem /org/freedesktop/ModemManager1/Modem/0: state changed (connecting -> connected)
> ModemManager[1133]: <info> [1574094017.526928] Simple connect state (8/8): All done
> ModemManager[1133]: <debug> [1574094017.528284] (ttyAMA0) device open count is 2 (close)
> ModemManager[1133]: <debug> [1574094022.884121] Couldn't load network timezone: No AT port available to run command
> ModemManager[1133]: <warn> [1574094022.884301] Couldn't load network timezone from the current network
> ModemManager[1133]: <debug> [1574094047.903513] loading signal quality...
> ModemManager[1133]: <debug> [1574094047.904192] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094047.904316] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094047.905267] Connection monitoring is unsupported by the device
> ModemManager[1133]: <debug> [1574094077.908613] Signal quality value not updated in 60s, marking as not being recent
> ModemManager[1133]: <debug> [1574094077.909225] loading signal quality...
> ModemManager[1133]: <debug> [1574094077.912293] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094077.913112] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094107.909341] loading signal quality...
> ModemManager[1133]: <debug> [1574094107.910887] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094107.911877] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094137.909770] loading signal quality...
> ModemManager[1133]: <debug> [1574094137.910968] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094137.911119] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094167.909603] loading signal quality...
> ModemManager[1133]: <debug> [1574094167.910793] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094167.910940] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094197.909420] loading signal quality...
> ModemManager[1133]: <debug> [1574094197.910612] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094197.910761] Periodic signal quality checks scheduled in 30s
> ModemManager[1133]: <debug> [1574094227.908847] loading signal quality...
> ModemManager[1133]: <debug> [1574094227.910030] Couldn't refresh signal quality: 'No AT port available to run command'
> ModemManager[1133]: <debug> [1574094227.910179] Periodic signal quality checks scheduled in 30s
>
> PS: same issue has been reported here (unsolved)
> https://serverfault.com/questions/990028/networkmanager-gsm-connection-on-simcom-sim5320a-via-serial-port-is-failing
>
>
>
>
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