This patch changes MMIfaceModem3gpp to differentiate between deferrable
and non-deferrable 3GPP registration state updates. Periodic or
unsolicited registration state updates are deferrable, while internal
updates, e.g. due to modem being disabled, are non-deferrable.
Don't clear the current deferred registration update until having disabled
and cleaned up unsolicited registrations state messages, or we may end up
re-setting the deferred registration update again meanwhile
If the rules to tag specific USB interface numbers only apply on the PID, we'll
end up seeing that if the port has a parent with another PID, and that other
PID also has a rule, port will get tagged multiple times. Easier to see with an
example:
The ZTE MF637 (VID 0x19D2, PID 0x0121) had the following rules:
ATTRS{idProduct}=="0121", ENV{.MM_USBIFNUM}=="04", ENV{ID_MM_ZTE_PORT_TYPE_MODEM}="1"
ATTRS{idProduct}=="0121", ENV{.MM_USBIFNUM}=="01", ENV{ID_MM_ZTE_PORT_TYPE_AUX}="1"
In our ZTE rules we also have some for the device with PID 0x0002, like:
ATTRS{idProduct}=="0002", ENV{.MM_USBIFNUM}=="02", ENV{ID_MM_ZTE_PORT_TYPE_MODEM}="1"
ATTRS{idProduct}=="0002", ENV{.MM_USBIFNUM}=="04", ENV{ID_MM_ZTE_PORT_TYPE_AUX}="1"
And it seems that we can grab multiple PIDs from a single port, i.e. from the
parent objects in the hierarchy:
udevadm info -a -n /dev/ttyUSB4 | grep idProduct
ATTRS{idProduct}=="0121"
ATTRS{idProduct}=="0020"
ATTRS{idProduct}=="0002"
Where that 0x0002 idProduct is not from the modem, but from the EHCI Host
Controller (with idVendor 0x1d6b in my case).
So... we end up seeing that both set of rules will apply to the ports, and we
misleadingly get:
(ttyUSB3) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
ZTE: AT port 'tty/ttyUSB2' flagged as primary
(ttyUSB2) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
ZTE: AT port 'tty/ttyUSB1' flagged as secondary
(ttyUSB1) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
ZTE: AT port 'tty/ttyUSB4' flagged as primary
b_port(): (ttyUSB4) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB2 at (primary)
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB1 at (secondary)
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB2 data (primary)
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB0 qcdm
Which is wrong, as ttyUSB4 should have been our primary port, not ttyUSB2.
With this patch on, the rules apply only to the VID/PID pair, and we end up
getting what we really wanted:
(ttyUSB3) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
(ttyUSB2) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
ZTE: AT port 'tty/ttyUSB1' flagged as secondary
(ttyUSB1) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
ZTE: AT port 'tty/ttyUSB4' flagged as primary
b_port(): (ttyUSB4) type 'at' claimed by /sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB4 at (primary)
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB1 at (secondary)
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB4 data (primary)
(/sys/devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.2) tty/ttyUSB0 qcdm
https://bugzilla.gnome.org/show_bug.cgi?id=694759
Allow mm_iface_modem_update_state() receive 'MM_MODEM_STATE_FAILED', and treat
it as any other change to failed state, but with
'MM_MODEM_STATE_FAILED_REASON_UNKNOWN'.
This patch defers the update of 3GPP registration state by 15 seconds
when the registration state changes from 'registered' (home / roaming)
to 'searching'. This allows a temporary loss of 3GPP registration to
recover itself when relying on ModemManager to explicitly disconnect and
reconnect to the network.
When reading the string reply in a +CUSD indication, don't blindly split
using whitespace or comma as field separator, as the string may be a text string
with both whitespaces and commas, e.g.:
+CUSD: 0,"hey hey, something here<LF>***<LF>and something more here"
Also, skip reading the encoding field for now, as we don't use it yet.
MBM devices seem to include the '+CUSD: 0' indication before even returning OK to our '+CUSD=1'
(ttyACM0): --> 'AT+CUSD=1,"*111#",15<CR>'
(ttyACM0): <-- '<CR><LF>+CUSD: 0,"reply here"<CR><LF>'
(ttyACM0): <-- '<CR><LF>OK<CR><LF>'
We need to handle modems which appear in low-power mode (e.g. CFUN=4), so
implement a custom check of the power state. We cannot use the default check
as MBM modems use CFUN also for allowed mode handling.
Treat each port independently in its own idle, as if we're receiving independent
udev events, otherwise, GSources may not be properly scheduled in the main loop.
A new reference to probe was acquired through mm_device_get_probe(), just unref it
when no longer needed. Note that mm_port_probe_run() will take its own reference
for as long as required to complete the operation.
The generic disconnection logic now already handles getting the port fully
closed and a wait time before reopening it, so no need for a custom
disconnection logic any more.
We will now by default wait some time (1s) between port getting fully closed and
the port being reopened again. This logic seems to work for multiple modems
where there is a single port for both AT and data, like my Nokia C7 and Iridium
modems. If this wait time is not applied, the port ends up returning EAGAIN for
every write that we try to do afterwards.
Patch "iface-modem: fix invalid modem state consolidation" (commit
69aff6183a) incorrectly consolidates the
modem state upon the disconnection of a bearer. The modem state remains
'connected' after the last bearer is disconnected. This patch fixes
that.
For the case where we just get a device with all net ports (i.e. all deferred
until result suggested), just abort the probing if the minimum probing time is
consumed.
This may happen when sending commands to the modem while in non-enabled state,
like when sending the PIN. In this case, just send the command, don't fully
initialize the port with the initialization sequence.
We were maintaining the port we used for dialling (the data port) open during
the connection, as specified by the CDMA or 3GPP specific logic. We'll now close
that open count reference ourselves within the CDMA or 3GPP disconnection logic
itself.
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.
Instead of returning 3 variables in connect_finish(), return a single reference
counted struct. This simplifies how the result is built and passed within a
GSimpleAsyncResult to each _finish() method.
This also simplifies the dialling step in the 3GPP connection sequence, as we
can use the same new type.
Instead of a custom modem_init() step in the 'Modem' interface, just add a
sequence of port initialization commands in each port.
While enabling for the first time a non-hotplugged modem, we will issue the
port initialization commands only after having run the enabling_modem_init()
step (i.e. after ATZ usually).
We are now able to specify a list of AT commands to be run whenever the port is
opened for the first time (i.e. open_count from 0 to 1). These commands are
to be treated as a 'port initialization' sequence, where port-configuration
specific AT commands are defined (e.g. ATE0).
