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Fixes: 1bd9935b5aece6c5999c96df1acec86cfc00e6b1
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Commit acf101335 ("telit: port mm-broadband-modem-telit to use GTask")
ported most of the modem_set_current_bands code to use GTask, but missed
a few g_simple_async_report_error_in_idle calls, which potentially leads
to an incorrect G_TASK cast in modem_set_current_bands_finish.
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g_free() and g_match_info_free() already check if the given pointer is
NULL and does nothing on a NULL pointer.
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When returning an enum value via g_task_return_int, some code assumes
the enum value is always non-negative and thus considers that a negative
value implies an error. This assumption could be invalidated if a
negative value is later added to the enum. To make it less error prone
to future changes, this patch modifies the code to check if the GError
argument to g_task_propagate_error is populated instead.
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When returning an enum value via g_task_return_int, some code assumes
the enum value is always non-negative and thus considers that a negative
value implies an error. This assumption could be invalidated if a
negative value is later added to the enum. To make it less error prone
to future changes, this patch modifies the code to check if the GError
argument to g_task_propagate_error is populated instead.
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Always name 'self' the object being implemented.
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3GPP TS 36.101 Table 5.5-1 refers the E-UTRA operating bands as 1, 2, 3,
..., etc.
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Telit LTE modems use #PSNT: 4 for LTE access technology,
and #PSNT: 5 for unknown access technology, while HSDPA
modems use #PSNT: 4 for unknown access technology.
This patch fixes those #PSNT values interpretation according
to the modem capabilities.
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If the modem supports ^SIND psinfo reporting, we enable the URC and
flag the access technology polling unsupported, so that we only update
access technology via the +CIEV URCs.
E.g.:
(ttyACM1): --> 'AT^SIND="psinfo",1<CR>'
(ttyACM1): <-- '<CR><LF>^SIND: psinfo,1,10<CR><LF><CR><LF>OK<CR><LF>'
Reporting initial access technologies...
Modem /org/freedesktop/ModemManager1/Modem/0: access technology changed (unknown -> hsdpa, hsupa)
...
(ttyACM1): <-- '<CR><LF>+CIEV: psinfo,4<CR><LF>'
Modem /org/freedesktop/ModemManager1/Modem/0: access technology changed (hsdpa, hsupa -> edge)
...
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We also remove the explicit refresh request from the Cinterion plugin,
as this is a generic action applicable to all modems that require
polling for signal quality and/or access technology.
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Plugins have two ways to update signal quality and access technology
values: via unsolicited messages or via polling periodically.
Instead of keeping separate contexts for polling signal quality and
access technology values, we setup a common timeout to trigger
both. This allows us to simplify in which case the explicit update is
required, whenever one is needed to be explicitly updated, the other
one should also be.
The logic now also allows plugins to return an UNSUPPORTED error in
either load_signal_quality() and/or load_access_technologies() to tell
the interface logic that the polling of the specific item shouldn't be
performed (e.g. if the updates are expected via unsolicited messages).
If both signal quality and access technology polling is flagged as
disabled, we totally disable the polling logic internally.
The new SignalCheckContext is bound to the lifetime of the object so
that we can keep the value of the supported flags until the object is
destroyed.
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Dell plugin is a compilation of other plugins, move last.
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When the async method starts we store already the primary and the
optional secondary port objects in the method context, keeping a full
reference for each.
When we parse the response for the enabling command, we just reuse the
stored port objects, instead of re-querying the modem to get them, and
this makes sure that the port objects where we want to set the
unsolicited message handlers are still valid. If the ports are gone
in the middle of the enabling operation, the handlers will be set
without errors, even if the ports may likely get completely disposed
when this async method context is disposed.
Additionally, we make sure that we return an error also for the case
where there is no secondary port and the enabling on the primary port
failed.
This patch also fixes the use of the at_command_full_finish() method to
complete the at_command_full() async operation, to keep consistency.
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Given that the MMTelitQssStatus enums are mapped directly to the
values read from the #QSS response, we need to make sure that we never
return a value for which we don't have an enum defined.
Also, use set_error() instead of the propagate_error() + error_new()
combo.
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Currently, Telit's SIM swap implementation is stateless and
based on #QSS unsolicited messages 0/1 (SIM_REMOVED/SIM_INSERTED).
However, the user might have configured the modem in order to provide a
more detailed information, with #QSS values 2/3 (SIM UNLOCKED/SIM READY).
In this case and with current implementation, even receiving "#QSS: 3" will
trigger the "SIM swap" logic. The same issue might occur in other use cases
too, i.e. with SIM locked or when the message is received from both USB
ports.
This patch makes SIM swap implementation stateful, and it considers as an
actual SIM swap, only transitions from #QSS: 0 to #QSS: 1/2/3 and vice
versa.
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This modem ends up exposing a cdc-wdm port and a WWAN network
interface, but the cdc-wdm port is totally unusable, it won't reply to
any AT command or anything.
Instead this modem can do NDISDUP via TTY, which is what the Windows
drivers are also doing.
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The default setup with 100ms between GPS commands doesn't seem to be
always enough for the Engine activation step:
[1495016625.392972] (ttyACM1): --> 'AT^SGPSC="NMEA/Output","on"<CR>'
[1495016625.503885] (ttyACM1): <-- '<CR><LF>^SGPSC: "Nmea/Output","on"<CR><LF><CR><LF><CR><LF>OK<CR><LF>'
[1495016625.607650] (ttyACM1): --> 'AT^SGPSC="Power/Antenna","on"<CR>'
[1495016625.697862] (ttyACM1): <-- '<CR><LF>^SGPSC: "Power/Antenna","on"<CR><LF><CR><LF>OK<CR><LF>'
[1495016625.809393] (ttyACM1): --> 'AT^SGPSC="Engine","1"<CR>'
[1495016625.895970] (ttyACM1): <-- '<CR><LF>+CME ERROR: 767<CR><LF>'
We now setup up to 3 retries for the Engine activation step before
returning an error, and we also update to 2000ms the wait time before
the Engine activation command is run.
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The AT^SGPSS command provides an easy way to just start/stop GPS, but
unfortunately it isn't supported by all Cinterion modems.
The AT^SGPSC command instead is more widely available but it requires
several steps to start and stop the different elements of the GPS
receiver.
Implement support for both, preferring AT^SGPSSS if available and
falling back to AT^SGPSC otherwise.
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i.e. if AT^SGPSS not supported, we don't even add traces handler to
the GPS data port.
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When checking for location capabilities, we will make sure AT^SGPSS is
supported and if it isn't we won't report GPS capabilities.
The location enable and disable paths are refactored to make it easier
to add possible new GPS commands to use instead of AT^SGPSS, if this
isn't supported (e.g. in the PLS8 devices).
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