openwrt/package/network/utils/comgt
Szabolcs Hubai 91eca7b04f comgt: add quirk for Mikrotik modems based on Mikrotik R11e-LTE6
The MikroTik R11e-LTE6 modem goes into flight mode (CFUN=4) at startup
and the radio is off (*RADIOPOWER: 0):

    AT+RESET
    OK

    OK

    *SIMDETEC:2,NOS

    *SIMDETEC:1,SIM

    *ICCID: 8936500119010596302

    *EUICC: 1

    +MSTK: 11, D025....74F3

    *ADMINDATA: 0, 2, 0

    +CPIN: READY

    *EUICC: 1

    *ECCLIST: 5, 0, 112, 0, 000, 0, 08, 0, 118, 0, 911

    +CREG: 0

    $CREG: 0

    +CESQ: 99,99,255,255,255,255

    *CESQ: 99,99,255,255,255,255,0

    +CGREG: 0

    +CEREG: 0

    +CESQ: 99,99,255,255,255,255

    *CESQ: 99,99,255,255,255,255,0

    *RADIOPOWER: 0

    +MMSG: 0, 0

    +MMSG: 0, 0

    +MMSG: 1, 0

    +MPBK: 1

While the chat script is able to establish the PPP connection,
it's closed instantly by the modem: LCP terminated by peer.

    local2.info chat[7000]: send (ATD*99***1#^M)
    local2.info chat[7000]: expect (CONNECT)
    local2.info chat[7000]: ^M
    local2.info chat[7000]: ATD*99***1#^M^M
    local2.info chat[7000]: CONNECT
    local2.info chat[7000]:  -- got it
    local2.info chat[7000]: send ( ^M)
    daemon.info pppd[6997]: Serial connection established.
    kern.info kernel: [  453.659146] 3g-mikrotik: renamed from ppp0
    daemon.info pppd[6997]: Renamed interface ppp0 to 3g-mikrotik
    daemon.info pppd[6997]: Using interface 3g-mikrotik
    daemon.notice pppd[6997]: Connect: 3g-mikrotik <--> /dev/ttyACM0
    daemon.info pppd[6997]: LCP terminated by peer
    daemon.notice pppd[6997]: Connection terminated.
    daemon.notice pppd[6997]: Modem hangup
    daemon.info pppd[6997]: Exit.
    daemon.notice netifd: Interface 'mikrotik' is now down

Sending "AT+CFUN=1" to modem deactivates the flight mode and
solves the issue:

    daemon.notice netifd: Interface 'mikrotik' is setting up now
    daemon.notice netifd: mikrotik (7051): sending -> AT+CFUN=1
    daemon.notice pppd[7137]: pppd 2.4.9 started by root, uid 0
    local2.info chat[7140]: abort on (BUSY)
    local2.info chat[7140]: abort on (NO CARRIER)
    local2.info chat[7140]: abort on (ERROR)
    local2.info chat[7140]: report (CONNECT)
    local2.info chat[7140]: timeout set to 10 seconds
    local2.info chat[7140]: send (AT&F^M)
    local2.info chat[7140]: expect (OK)
    local2.info chat[7140]: ^M
    local2.info chat[7140]: +CESQ: 99,99,255,255,255,255^M
    local2.info chat[7140]: ^M
    local2.info chat[7140]: *CESQ: 99,99,255,255,255,255,0^M
    local2.info chat[7140]: AT&F^MAT&F^M^M
    local2.info chat[7140]: OK
    local2.info chat[7140]:  -- got it
    ...
    local2.info chat[7140]: send (ATD*99***1#^M)
    local2.info chat[7140]: expect (CONNECT)
    local2.info chat[7140]: ^M
    local2.info chat[7140]: ATD*99***1#^M^M
    local2.info chat[7140]: CONNECT
    local2.info chat[7140]:  -- got it
    local2.info chat[7140]: send ( ^M)
    daemon.info pppd[7137]: Serial connection established.
    kern.info kernel: [  463.094254] 3g-mikrotik: renamed from ppp0
    daemon.info pppd[7137]: Renamed interface ppp0 to 3g-mikrotik
    daemon.info pppd[7137]: Using interface 3g-mikrotik
    daemon.notice pppd[7137]: Connect: 3g-mikrotik <--> /dev/ttyACM0
    daemon.warn pppd[7137]: Could not determine remote IP address: defaulting to 10.64.64.64
    daemon.notice pppd[7137]: local  IP address 100.112.63.62
    daemon.notice pppd[7137]: remote IP address 10.64.64.64
    daemon.notice pppd[7137]: primary   DNS address 185.29.83.64
    daemon.notice pppd[7137]: secondary DNS address 185.62.131.64
    daemon.notice netifd: Network device '3g-mikrotik' link is up
    daemon.notice netifd: Interface 'mikrotik' is now up

To send this AT command to the modem the "runcommand.gcom" script
dependency is moved from comgt-ncm to comgt.
As the comgt-ncm package depends on comgt already, this change
is a NOOP from that point of view.
But from the modem's point it is a low hanging fruit as the modem
is usable with installing comgt and kmod-usb-ncm packages.

Signed-off-by: Szabolcs Hubai <szab.hu@gmail.com>
2023-03-29 17:29:02 +02:00
..
files comgt: add quirk for Mikrotik modems based on Mikrotik R11e-LTE6 2023-03-29 17:29:02 +02:00
patches comgt: Use TCGETS and TCSETS ioctls for struct termios 2015-02-22 08:29:26 +00:00
Makefile comgt: add quirk for Mikrotik modems based on Mikrotik R11e-LTE6 2023-03-29 17:29:02 +02:00