Devices with Icera chipsets (USB305) don't support the Qualcomm
proprietary $QCPDPP command, and we must use the Icera command
instead. Otherwise authenticated bearer creation will fail.
MMBroadbandModemSierraIcera is not a subclass of
MMBroadbandModemSierra, so we cannot cast it to that type when
passing it to bearer creation. Luckily the bearer doesn't
care, so just downgrade the type to MMBroadbandModem.
This patch modifies mm_3gpp_parse_iccid() to auto-detect if an ICCID
response is character swapped or not by comparsing the major industry
identifier part of the ICCID response to the known value (89) for
telecommunication purposes. This addresses the issue where the same AT
command (e.g. AT^ICCID used by the huawei plugin) does not report ICCID
in a consistent format.
We now have a single 'CurrentModes' property which contains both values in a
tuple with signature "(uu)".
Also, rename 'SetAllowedModes()' to 'SetCurrentModes()', and update the list of
arguments expected to have a single "(uu)" tuple.
This patch removes an unnecessary check of unsigned expression >= 0,
which also fixes the following clang warnings:
sierra/mm-broadband-modem-sierra.c:570:18: error: comparison of
unsigned expression >= 0 is always true
[-Werror,-Wtautological-compare]
mode >= 0 &&
~~~~ ^ ~
Bug reported on https://code.google.com/p/chromium/issues/detail?id=235989
Patched by Yunlian Jiang <yunlian@chromium.org>
The GetNetworkTime() response is defined to be an ISO8601 string, which
is in turn defined to be in local time. Make sure that's reflected in
the documentation, and append the timezone offset to UTC where we have
it.
Oddly, Icera devices return their time info in UTC with an offset to
the local timezone, so we have to jump through some hoops there to
convert the response to localtime based on the reported offset.
Some additional fixes by Aleksander Morgado <aleksander@lanedo.com>.
https://bugzilla.gnome.org/show_bug.cgi?id=697372
The USB305 (Icera-based) apparently has a port that replies to everything
with ERROR, and that port is unusable. Make sure it's ignored, otherwise
MM may claim it as the primary AT port since it technically speaks AT.
When the serial port buffer gets full of non-AT garbage during port probing,
we were re-scheduling the next probing step, which is completely wrong, as we
then would be processing the same probing task twice. If we get a buffer full,
just cancel the AT probing cancellable, which would cancel not only the possible
AT probings, but also the custom init if there is any.
Also, make sure that the custom_init() of the plugins out there don't return an
error if the GCancellable is cancelled. Cancelling the GCancellable means we
should just stop the custom_init(), and actually sending an error in
custom_init() means that the port should be set as unsupported by the plugin, so
completely different things.
Should fix https://bugzilla.gnome.org/show_bug.cgi?id=696695
Plugins which may support QMI ports need to explicitly request QMI probing
in cdc-wdm devices. This should also avoid probing cdc-wdm ports when we know
that the plugin doesn't support them (e.g. with Ericsson MBM devices).
https://bugzilla.gnome.org/show_bug.cgi?id=696701
Older devices may crash if asked to connect right after sending the
PIN and unlocking the SIM; they simply stop responding to AT commands
around the first request for access technology and then reboot. A
delay seems prevents this behavior.
Since it's not uncommon to require a delay after SIM unlock, add one
for newer sierra_net devices as well, even though we're not quite
sure if they need one or not. It doesn't hurt, at least.
'result' may be NULL even if no error is set. Errors aren't set
because we want to continue the !TIME/!SYSTIME sequence regardless
of errors, so we can figure out which command the modem supports.
Trying to get a uint32 out of a NULL GVariant makes glib complain,
and it's wrong, so don't do that.
Instead of deciding in advance which data port to use, we let the dialling
operation gather it. For the generic dialling logic, ATD-based, always an
'AT' port will be used as data port, even if we grabbed a 'net' port. Those
plugins that can work with 'net' ports will grab the specific 'net' port
themselves.
Sierra CDMA devices don't always have QCDM ports, or if they do,
they aren't always usable. Try Sierra-proprietary commands for
loading the modem's MDN and fall back to QCDM if that fails.
This logic is now implemented by the parent broadband modem object.
Also, implement a custom initial power state loading, so that CDMA-only modems
get marked as 'offline', in order to launch !pcstate=1 to power them up during
the first enabling. The custom initial power state loading will run the parent's
implementation in non-CDMA-only modems.
Specially the first time that CFUN=1,0 is issued after the initial power up, we
really need to wait more than 3s for the AT command reply. Otherwise, the modem
won't like it and it will reset itself :-/
Unfortunately, Sierra secondary APP ports reply to +GCAP with
only "OK", and not their APP port number or model number. So instead
of using +GCAP, we have to use ATI to get secondary port information.
This allows us to detect which port is the APP1 port that we can
potentially use for PPP, leaving the primary port available for
control and status.
Also, some modems have up to 3 or 4 APP secondary ports, which we
need to ensure aren't used as primary. The previous check for +GCAP
handled that, but let's make it more explicit.
AT+GCAP reply:
OK
ATI reply:
Sierra Wireless, Inc.
C885
APP1
OK
See also: 3f3987e09ee762e48c1d53cb42a1288ce9f332cb (MM_06)
Turns out older devices (like the C885/AT&T Mercury) crash often
when we don't wait for them to settle from CFUN=1. 5 seconds is
too short, but the crashes go away when we wait for 10 seconds.
Newer modems like the USB306 don't have this problem, so we just
check to see if the modem is a DirectIP device (using sierra_net)
and only use the shorter timeout for those newer devices.
This is a separate problem from some older modems returning ERROR
to valid commands that are sent too soon after CFUN=1, which was
observed on really old devices like the PCMCIA 860.
