On 25/07/17 10:24, Carlo Lobrano wrote: > this is the patch to improve SIM hot swap error management in both AT > and MBIM based modems :) > > The patch for GE910-QUAD is in thread "[PATCH] telit-plugin: ignore QSS > when SIM-ME interface is locked"
Sorry for the misunderstanding - with that applied the modem doesn't get locked up during init, thanks! I suppose there is a bit of a race in the code, because: First the current SIM insertion state is checked (with AT#QSS?), and stored, and afterwards unsolicited notifications are enabled "AT#QSS=1". If a SIM eject happens between the two, then the SIM removed event wouldn't be caught, and the internal stored state would be incorrect - the fix would be to issue and parse the AT#QSS? command after the AT#QSS=1 command. This could also serve to verify that the modem did enable hot swap notifiation. In practise this is highly unlikely, but just thought I'd mention it. More importantly, after SIM hot swap is set up, an 'ATZ' command is issued which resets the modem to power on state and so turns off sim hot swap notification. 41.395075] (ttyUSB0): --> 'AT+CESQ=?<CR>' 41.414255] (ttyUSB0): <-- '<CR>' 41.414400] (ttyUSB0): <-- '<LF>' 41.414426] (ttyUSB0): <-- 'E' 41.414514] (ttyUSB0): <-- 'R' 41.414582] (ttyUSB0): <-- 'R' 41.414665] (ttyUSB0): <-- 'O' 41.414765] (ttyUSB0): <-- 'R' 41.414787] Got failure code 100: Unknown error 41.414808] Extended signal support check failed: 'Unknown error' 41.414824] Couldn't initialize interface: 'Extended Signal information not supported' 41.414959] (ttyUSB0) device open count is 1 (close) 41.414984] (ttyUSB0): <-- '<CR><LF>' 41.415004] Couldn't initialize interface: 'OMA not supported' 41.415052] Couldn't initialize interface: 'Firmware interface not available' 41.415076] Creating ports context for SIM hot swap 41.415089] (ttyUSB0) device open count is 2 (open) 41.415161] Modem: state changed (unknown -> disabled) 41.415210] modem properly initialized 41.415543] [device /sys/devices/pci0000:00/0000:00:14.0/usb1/1-9] exported modem at path '/org/freedesktop/ModemManager1/Modem/0' 41.415573] [device /sys/devices/pci0000:00/0000:00:14.0/usb1/1-9] plugin: Telit 41.415585] [device /sys/devices/pci0000:00/0000:00:14.0/usb1/1-9] vid:pid: 0x067B:0x2303 41.415599] (ttyUSB0) device open count is 1 (close) 41.420844] Modem /org/freedesktop/ModemManager1/Modem/0: state changed (disabled -> enabling) 41.421031] (ttyUSB0) device open count is 2 (open) 41.421053] Flashing primary AT port before enabling... 41.421300] (ttyUSB0): port attributes not fully set 41.442758] Simple connect started... 41.442816] PIN: unspecified 41.442831] Operator ID: unspecified 41.442843] Allowed roaming: yes 41.442854] APN: internetm2m.air.com 41.442866] IP family: ipv4 41.442888] Allowed authentication: unspecified 41.675882] User: unspecified 41.675927] Password: unspecified 41.675949] Number: *99# 41.675961] Simple connect state (4/8): Wait to get fully enabled 41.676218] Running modem initialization sequence... 41.676251] (ttyUSB0) device open count is 3 (open) 41.676299] (ttyUSB0): --> 'ATZ<CR>' 41.691085] (ttyUSB0): <-- '<CR>' 41.691257] (ttyUSB0): <-- '<LF>' 41.691383] (ttyUSB0): <-- 'OK<CR>' 41.691424] (ttyUSB0): <-- '<LF>' 41.691464] Giving some time to settle the modem... 41.691481] (ttyUSB0) device open count is 2 (close) Tim. -- South East Open Source Solutions Limited Registered in England and Wales with company number 06134732. Registered Office: 2 Powell Gardens, Redhill, Surrey, RH1 1TQ VAT number: 900 6633 53 http://seoss.co.uk/ +44-(0)1273-808309 _______________________________________________ ModemManager-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/modemmanager-devel
