Cinterion plugin patch

matthew stanger stangerm2 at gmail.com
Mon Aug 29 15:44:12 UTC 2016


Attached is the patch, gmail is the culprit.

On Mon, Aug 29, 2016 at 9:36 AM, Dan Williams <dcbw at redhat.com> wrote:

> On Sat, 2016-08-27 at 21:36 -0600, matthew stanger wrote:
> > Hi,
> >
> > This is my first open source commit! The patch is mainly to support
> > the
> > PLS8 modems via a SWWAN connection. Please give it a good look over
> > and
> > give me feedback on what needs to be changed. It's my first time
> > using glib
> > so please call me out on stupid things I may have done :). This was
> > branched off 59f57befa4be81b562f9adfbac39fbe19d88c111. Patch is
> > below:
>
> Thanks for the patch!  One issue though, the patch got linewrapped by
> your mail client :(  If there's a way to mark all the lines of inline
> patch as "preformatted" or something so it doesn't wrap at 80 chars try
> that, otherwise you could attach the patch.
>
> Inline patches are easier to review and make comments on, but if your
> email client can't cooperate with linewrapping then an attachment works
> too.
>
> Thanks!
> Dan
>
> > From 281c7c38d1edbf85d2a318b7a5eb7bf8d56e2269 Mon Sep 17 00:00:00
> > 2001
> > From: Matthew Stanger <matthew_stanger at trimble.com>
> > Date: Fri, 26 Aug 2016 16:35:49 -0600
> > Subject: [PATCH] Features:  Added SWWAN support in Cinterion plugin.
> > Updated
> >  GPS support for Cinterion modems that use new SGPSC commands.  Added
> > LTE
> >  status for Cinterion plugin.  Made general Cinterion plugin
> > improvements to
> >  better support PLS8-X & PLS8-E modems.
> >
> > Known issues:
> >  SWWAN connection not tied into mmcli status updates.
> >  Unknown logic flow for APN's which require User & Password.
> >  No support for IP version.
> >  Does not pull IP address from SWWAN into mmcli.
> >  Does not auto preform DHCP for SWWAN connection.
> >  Dual pdp context connections not yet supported.
> >  Simple connect/disconnect does not clean up bearer.
> > ---
> >  plugins/Makefile.am                                |    2 +
> >  plugins/cinterion/77-mm-cinterion-port-types.rules |    2 +-
> >  plugins/cinterion/mm-broadband-bearer-cinterion.c  | 1126
> > ++++++++++++++++++++
> >  plugins/cinterion/mm-broadband-bearer-cinterion.h  |   56 +
> >  plugins/cinterion/mm-broadband-modem-cinterion.c   |  281 ++++-
> >  plugins/cinterion/mm-broadband-modem-cinterion.h   |    3 +
> >  plugins/cinterion/mm-common-cinterion.c            |  402 ++++++-
> >  plugins/cinterion/mm-modem-helpers-cinterion.c     |  188 ++++
> >  plugins/cinterion/mm-modem-helpers-cinterion.h     |   17 +
> >  plugins/cinterion/mm-plugin-cinterion.c            |  141 ++-
> >  src/mm-base-modem.c                                |   20 +
> >  src/mm-base-modem.h                                |    1 +
> >  12 files changed, 2183 insertions(+), 56 deletions(-)
> >  create mode 100644 plugins/cinterion/mm-broadband-bearer-cinterion.c
> >  create mode 100644 plugins/cinterion/mm-broadband-bearer-cinterion.h
> >
> > diff --git a/plugins/Makefile.am b/plugins/Makefile.am
> > index 018b696..744fd18 100644
> > --- a/plugins/Makefile.am
> > +++ b/plugins/Makefile.am
> > @@ -565,6 +565,8 @@ libmm_plugin_cinterion_la_SOURCES = \
> >   cinterion/mm-common-cinterion.h \
> >   cinterion/mm-broadband-modem-cinterion.c \
> >   cinterion/mm-broadband-modem-cinterion.h \
> > + cinterion/mm-broadband-bearer-cinterion.c \
> > + cinterion/mm-broadband-bearer-cinterion.h \
> >   $(NULL)
> >  if WITH_QMI
> >  libmm_plugin_cinterion_la_SOURCES += \
> > diff --git a/plugins/cinterion/77-mm-cinterion-port-types.rules
> > b/plugins/cinterion/77-mm-cinterion-port-types.rules
> > index 09de742..ee386f0 100644
> > --- a/plugins/cinterion/77-mm-cinterion-port-types.rules
> > +++ b/plugins/cinterion/77-mm-cinterion-port-types.rules
> > @@ -8,4 +8,4 @@ SUBSYSTEMS=="usb", ATTRS{bInterfaceNumber}=="?*",
> > ENV{.MM_USBIFNUM}="$attr{bInte
> >
> >  ATTRS{idVendor}=="1e2d", ATTRS{idProduct}=="0053",
> > ENV{.MM_USBIFNUM}=="01", ENV{ID_MM_CINTERION_PORT_TYPE_GPS}="1"
> >
> > -LABEL="mm_cinterion_port_types_end"
> > +LABEL="mm_cinterion_port_types_end"
> > \ No newline at end of file
> > diff --git a/plugins/cinterion/mm-broadband-bearer-cinterion.c
> > b/plugins/cinterion/mm-broadband-bearer-cinterion.c
> > new file mode 100644
> > index 0000000..eb73cf5
> > --- /dev/null
> > +++ b/plugins/cinterion/mm-broadband-bearer-cinterion.c
> > @@ -0,0 +1,1126 @@
> > +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset:
> > 4 -*-
> > */
> > +/*
> > + * This program is free software; you can redistribute it and/or
> > modify
> > + * it under the terms of the GNU General Public License as published
> > by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details:
> > + *
> > + * Copyright (C) 2016 Trimble Navigation Limited
> > + * Author: Matthew Stanger <matthew_stanger at trimble.com>
> > + */
> > +
> > +#include <config.h>
> > +#include <stdio.h>
> > +#include <stdlib.h>
> > +#include <unistd.h>
> > +#include <string.h>
> > +#include <ctype.h>
> > +#include <arpa/inet.h>
> > +#include <ModemManager.h>
> > +#include "mm-base-modem-at.h"
> > +#include "mm-broadband-bearer-cinterion.h"
> > +#include "mm-log.h"
> > +#include "mm-modem-helpers.h"
> > +#include "mm-modem-helpers-cinterion.h"
> > +#include "mm-daemon-enums-types.h"
> > +
> > +G_DEFINE_TYPE (MMBroadbandBearerCinterion,
> > mm_broadband_bearer_cinterion,
> > MM_TYPE_BROADBAND_BEARER);
> > +
> > +/*******************************************************************
> > **********/
> > +/* Common enums and structs */
> > +
> > +typedef enum {
> > +    MM_BEARER_CINTERION_AUTH_UNKNOWN   = -1,
> > +    MM_BEARER_CINTERION_AUTH_NONE      =  0,
> > +    MM_BEARER_CINTERION_AUTH_PAP       =  1,
> > +    MM_BEARER_CINTERION_AUTH_CHAP      =  2,
> > +    MM_BEARER_CINTERION_AUTH_MSCHAPV2  =  3,
> > +} MMBearerCinterionAuthPref;
> > +
> > +typedef enum {
> > +    CONNECTION_UNKNOWN = 0,
> > +    CONNECTION_ACTIVE,
> > +    CONNECTION_INACTIVE,
> > +} SWWAN_USB_CONNECTION_STATE;
> > +
> > +typedef enum {
> > +    CONNECT_3GPP_CONTEXT_STEP_INIT = 0,
> > +    CONNECT_3GPP_CONTEXT_STEP_VERIFY_SWWAN,
> > +    CONNECT_3GPP_CONTEXT_STEP_BEARER_PROPERTIES,
> > +    CONNECT_3GPP_CONTEXT_STEP_SET_SWWAN,
> > +    CONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS,
> > +    CONNECT_3GPP_CONTEXT_STEP_DONE,
> > +} Connect3gppContextStep;
> > +
> > +typedef enum {
> > +    DISCONNECT_3GPP_CONTEXT_STEP_INIT = 0,
> > +    DISCONNECT_3GPP_CONTEXT_STEP_SWWAN_DETACH,
> > +    DISCONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS,
> > +    DISCONNECT_3GPP_CONTEXT_STEP_DONE
> > +} Disconnect3gppContextStep;
> > +
> > +typedef struct {
> > +    MMBroadbandBearerCinterion *self;
> > +    MMBaseModem *modem;
> > +    MMPortSerialAt *primary;
> > +    MMPort *data;
> > +    Connect3gppContextStep connect;
> > +    Disconnect3gppContextStep disconnect;
> > +    SWWAN_USB_CONNECTION_STATE usb0_state;
> > +    SWWAN_USB_CONNECTION_STATE usb1_state;
> > +    MMBearerIpConfig *ipv4_config;
> > +    GCancellable *cancellable;
> > +    GSimpleAsyncResult *result;
> > +} Control3gppContext;
> > +
> > +struct _MMBroadbandBearerCinterionPrivate {
> > +    gpointer connect_pending;
> > +    gpointer disconnect_pending;
> > +    guint network_disconnect_pending_id;/* Tag for the post task for
> > network-initiated disconnect */
> > +    const gchar *bearer_interface;
> > +    const gchar *pdp_cid;
> > +    guint retry_count;
> > +    guint swwan_read_write;
> > +};
> > +
> > +/*******************************************************************
> > **********/
> > +/* Common 3GPP Function Declarations */
> > +static void connect_3gpp_context_step (Control3gppContext *ctx);
> > +static void disconnect_3gpp_context_step (Control3gppContext *ctx);
> > +static void connect_3gpp_context_complete_and_free
> > (Control3gppContext
> > *ctx);
> > +static void disconnect_3gpp_context_complete_and_free
> > (Control3gppContext
> > *ctx);
> > +
> > +/*******************************************************************
> > **********/
> > +/* Common 3GPP */
> > +
> > +static MMPortSerialAt *
> > +get_dial_port (MMBroadbandModemCinterion *modem,
> > +               MMPort                 *data,
> > +               MMPortSerialAt         *primary)
> > +{
> > +   //Use only the primary port for sending AT commands.
> > +    return g_object_ref (primary);
> > +}
> > +
> > +static void
> > +cinterion_3gpp_state_machine_logic (MMBroadbandBearerCinterion
> > *self)
> > +{
> > +    Control3gppContext *ctx;
> > +
> > +    //For connecting flows.
> > +    if (self->priv->connect_pending != NULL)
> > +    {
> > +        ctx = self->priv->connect_pending;
> > +
> > +        switch (ctx->connect) {
> > +
> > +        //Always go from INIT to VERIFY_SWWAN.
> > +        case CONNECT_3GPP_CONTEXT_STEP_INIT: {
> > +            ctx->connect = CONNECT_3GPP_CONTEXT_STEP_VERIFY_SWWAN;
> > +            break;
> > +        }
> > +
> > +        //Always go from VERIFY_SWWAN to BEARER_PROPERTIES.
> > +        case CONNECT_3GPP_CONTEXT_STEP_VERIFY_SWWAN: {
> > +            //Only try 5 times to check the connection then give up.
> > +            if (self->priv->retry_count > 5)
> > +            {
> > +                g_simple_async_result_set_error (ctx->result,
> > +                                                 MM_CORE_ERROR,
> > +                                                 MM_CORE_ERROR_TOO_M
> > ANY,
> > +                                                 "Unknown bearer
> > state
> > during connection attempt.");
> > +
> > +                connect_3gpp_context_complete_and_free (ctx);
> > +                return;
> > +            }
> > +            self->priv->retry_count++;
> > +            ctx->connect =
> > CONNECT_3GPP_CONTEXT_STEP_BEARER_PROPERTIES;
> > +            break;
> > +        }
> > +
> > +        //When in this state we can be setting up a brand new
> > connection
> > or,
> > +        //have just torn down a connection to setup a new one.
> > +        case CONNECT_3GPP_CONTEXT_STEP_BEARER_PROPERTIES: {
> > +            //We were connected (flags still set) & just issued
> > SWWAN
> > disconnect.
> > +            //Now refresh our usb connection state & retry.
> > +            //TODO: Rework for dual sim connections.
> > +            if (ctx->usb0_state == CONNECTION_ACTIVE || ctx-
> > >usb1_state ==
> > CONNECTION_ACTIVE)
> > +            {
> > +                ctx->connect =
> > CONNECT_3GPP_CONTEXT_STEP_VERIFY_SWWAN;
> > +            }
> > +            //There is no active connection and we set the context
> > correctly so continue to active SWWAN.
> > +            else if (ctx->usb0_state == CONNECTION_INACTIVE ||
> > ctx->usb1_state == CONNECTION_INACTIVE)
> > +                ctx->connect = CONNECT_3GPP_CONTEXT_STEP_SET_SWWAN;
> > +            else
> > +            {
> > +                //Error, should be impossible to get here. State
> > machine
> > broken.
> > +                ctx->self->priv->connect_pending = NULL;
> > +                g_simple_async_result_set_error (ctx->result,
> > +                                                 MM_CORE_ERROR,
> > +                                                 MM_CORE_ERROR_WRONG
> > _STATE,
> > +                                                 "Unknown bearer
> > state
> > during connection attempt.");
> > +
> > +                connect_3gpp_context_complete_and_free (ctx);
> > +                return;
> > +            }
> > +
> > +            break;
> > +        }
> > +
> > +        //Always verify that the SWWAN connection is active after
> > trying
> > to set it up.
> > +        //Same step as CONNECT_3GPP_CONTEXT_STEP_VERIFY_SWWAN but
> > makes it
> > easy to detect
> > +        //if we just came from a new or old connection.
> > +        case CONNECT_3GPP_CONTEXT_STEP_SET_SWWAN: {
> > +            ctx->connect =
> > CONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS;
> > +            break;
> > +        }
> > +
> > +        //If SWWAN was just set, we expect it should be on.
> > +        case CONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS: {
> > +            if ((g_ascii_strncasecmp(ctx->self->priv-
> > >bearer_interface,
> > "usb0", 4)==0 && ctx->usb0_state == CONNECTION_ACTIVE) ||
> > +                (g_ascii_strncasecmp(ctx->self->priv-
> > >bearer_interface,
> > "usb1", 4)==0 && ctx->usb1_state == CONNECTION_ACTIVE))
> > +                ctx->connect = CONNECT_3GPP_CONTEXT_STEP_DONE;
> > +            else
> > +            {
> > +                g_simple_async_result_set_error (ctx->result,
> > +                                                 MM_CORE_ERROR,
> > +                                                 MM_CORE_ERROR_WRONG
> > _STATE,
> > +                                                 "Unknown bearer
> > state
> > during connection attempt.");
> > +
> > +                connect_3gpp_context_complete_and_free (ctx);
> > +                return;
> > +            }
> > +
> > +            break;
> > +        }
> > +
> > +        case CONNECT_3GPP_CONTEXT_STEP_DONE: {
> > +            //Place holder, nothing should call this. Fall into
> > defualt
> > error.
> > +        }
> > +
> > +        default: {
> > +            mm_err ("Unexpected SWWAN connect state. Unable to
> > advance.");
> > +            ctx->self->priv->connect_pending = NULL;
> > +            g_simple_async_result_set_error (ctx->result,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_WRONG_STA
> > TE,
> > +                                             "Unexpected SWWAN
> > connect
> > state. Unable to advance.");
> > +
> > +            connect_3gpp_context_complete_and_free (ctx);
> > +            return;
> > +        }
> > +
> > +
> > +        }
> > +
> > +        connect_3gpp_context_step (ctx);
> > +    }
> > +    //Assume disconnecting flow, assert protects assumption.
> > +    else
> > +    {
> > +        g_assert (self->priv->disconnect_pending != NULL);
> > +        ctx = self->priv->disconnect_pending;
> > +
> > +        switch (ctx->disconnect) {
> > +
> > +        case DISCONNECT_3GPP_CONTEXT_STEP_INIT: {
> > +            ctx->disconnect =
> > DISCONNECT_3GPP_CONTEXT_STEP_SWWAN_DETACH;
> > +            break;
> > +        }
> > +
> > +        case DISCONNECT_3GPP_CONTEXT_STEP_SWWAN_DETACH: {
> > +            ctx->disconnect =
> > DISCONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS;
> > +            break;
> > +        }
> > +
> > +        case DISCONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS: {
> > +            //We expect the bearer to be disconnected now. If it's
> > not try
> > again.
> > +            //TODO: Rework for dual sim connections.
> > +            if ((g_ascii_strncasecmp(ctx->self->priv-
> > >bearer_interface,
> > "usb0", 4)==0 && ctx->usb0_state == CONNECTION_INACTIVE) ||
> > +                (g_ascii_strncasecmp(ctx->self->priv-
> > >bearer_interface,
> > "usb1", 4)==0 && ctx->usb1_state == CONNECTION_INACTIVE))
> > +                ctx->disconnect = DISCONNECT_3GPP_CONTEXT_STEP_DONE;
> > +            else
> > +            {
> > +                ctx->disconnect =
> > DISCONNECT_3GPP_CONTEXT_STEP_SWWAN_DETACH;
> > +                sleep (1); //Wait a second on disconnect retry's.
> > +            }
> > +            break;
> > +        }
> > +
> > +        case DISCONNECT_3GPP_CONTEXT_STEP_DONE: {
> > +            //Place holder, nothing should call this. Fall into
> > defualt
> > error.
> > +        }
> > +
> > +        default: {
> > +            mm_err ("Unexpected SWWAN disconnect state. Unable to
> > advance.");
> > +            ctx->self->priv->connect_pending = NULL;
> > +            g_simple_async_result_set_error (ctx->result,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_WRONG_STA
> > TE,
> > +                                             "Unexpected SWWAN
> > disconnect
> > state. Unable to advance.");
> > +
> > +            connect_3gpp_context_complete_and_free (ctx);
> > +
> > +            return;
> > +        }
> > +
> > +        }
> > +
> > +        disconnect_3gpp_context_step (ctx);
> > +    }
> > +}
> > +
> > +static gboolean
> > +proccess_swwan_response(MMBroadbandBearerCinterion *self, GList
> > *result)
> > +{
> > +    Control3gppContext *ctx;
> > +
> > +    if (self->priv->connect_pending != NULL)
> > +        ctx = self->priv->connect_pending;
> > +    else
> > +    {
> > +        g_assert (self->priv->disconnect_pending != NULL);
> > +        ctx = self->priv->disconnect_pending;
> > +    }
> > +
> > +
> > +    if (g_list_length(result) != 0) {
> > +        int first_result = GPOINTER_TO_INT(result->data);
> > +
> > +        //mm_serial_parser_v1_parse will catch CME Error. Parent
> > function
> > will then send
> > +        //that error to dbus out.
> > +        if(first_result == -1)
> > +            return FALSE;
> > +        //Recived an 'OK' response from a write command, place
> > holder so
> > we don't error below.
> > +       if (first_result == 0 && ctx->self->priv->swwan_read_write ==
> > 1)
> > +            NULL;
> > +        //Recived an 'OK'(0) response from an swwwan read command.
> > +        else if (first_result == 0 && ctx->self->priv-
> > >swwan_read_write ==
> > 0)
> > +        {
> > +            ctx->usb0_state = CONNECTION_INACTIVE;
> > +            ctx->usb1_state = CONNECTION_INACTIVE;
> > +        }
> > +        //1 || 3 result is the CID, given when that context is
> > activated.
> > +       //TODO: Rework for dual sim connections.
> > +        else if (first_result == 1 && ctx->self->priv-
> > >swwan_read_write ==
> > 0)
> > +            ctx->usb1_state = CONNECTION_ACTIVE;
> > +        else if (first_result == 3 && ctx->self->priv-
> > >swwan_read_write ==
> > 0)
> > +            ctx->usb0_state = CONNECTION_ACTIVE;
> > +        else
> > +        {
> > +            for (; result; result = g_list_next (result))
> > +                mm_err ("Unknown SWWAN response data:%i",
> > GPOINTER_TO_INT(result->data));
> > +
> > +            g_simple_async_result_set_error (ctx->result,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_FAILED,
> > +                                             "Internal error while
> > processing SWWAN response.");
> > +
> > +            return FALSE;
> > +        }
> > +     }
> > +     else {
> > +        mm_err ("Unable to parse zero length SWWAN response.");
> > +        return FALSE;
> > +     }
> > +
> > +     return TRUE;
> > +}
> > +
> > +static void
> > +get_swwan_response (MMBaseModem *modem,
> > +                          GAsyncResult *res,
> > +                          MMBroadbandBearerCinterion *self)
> > +{
> > +    Control3gppContext *ctx;
> > +    const gchar *response;
> > +    GError *error = NULL;
> > +    GList *response_parsed = NULL;
> > +
> > +    if (self->priv->connect_pending != NULL)
> > +        ctx = self->priv->connect_pending;
> > +    else
> > +    {
> > +        g_assert (self->priv->disconnect_pending != NULL);
> > +        ctx = self->priv->disconnect_pending;
> > +    }
> > +
> > +    // Balance refcount
> > +    g_object_unref (self);
> > +
> > +    //Parse the swwan response.
> > +    response = mm_base_modem_at_command_finish (modem, res, &error);
> > +
> > +    //1st elem of response_parsed will be:
> > +    //1 or 3 for an active swwan, -1 for a valid error, 0 for
> > assumed 'OK'
> > (no conection)
> > +    if (error == NULL && !mm_cinterion_parse_swwan_response
> > (response,
> > &response_parsed, &error))
> > +            NULL;
> > +
> > +
> > +    if (error != NULL || !proccess_swwan_response(ctx->self,
> > response_parsed)) {
> > +        ctx->self->priv->connect_pending = NULL;
> > +        ctx->self->priv->disconnect_pending = NULL;
> > +
> > +        g_simple_async_result_take_error (ctx->result, error);
> > +
> > +        if (ctx->connect)
> > +            connect_3gpp_context_complete_and_free (ctx);
> > +        else
> > +            disconnect_3gpp_context_complete_and_free (ctx);
> > +
> > +        return;
> > +
> > +    }
> > +
> > +    mm_dbg ("usb0-state:%i usb1-state:%i", ctx->usb0_state,
> > ctx->usb1_state);
> > +
> > +    g_list_free(response_parsed);
> > +    g_clear_error (&error);
> > +
> > +    cinterion_3gpp_state_machine_logic(ctx->self);
> > +
> > +    return;
> > +}
> > +
> > +/*******************************************************************
> > **********/
> > +/* Cinterion AT Command Wrappers */
> > +
> > +static void
> > +send_swwan_read_command(Control3gppContext *ctx)
> > +{
> > +    ctx->self->priv->swwan_read_write = 0;
> > +
> > +    //Check for swwan connection. The next state will be preformed
> > by the
> > callback.
> > +    mm_base_modem_at_command_full (ctx->modem,
> > +                                   ctx->primary,
> > +                                   "^SWWAN?",
> > +                                   5,
> > +                                   FALSE,
> > +                                   FALSE,
> > +                                   NULL,
> > +                                   (GAsyncReadyCallback)get_swwan_re
> > sponse,
> > +                                   g_object_ref (ctx->self));
> > +}
> > +
> > +static void
> > +send_swwan_connect_command(Control3gppContext *ctx)
> > +{
> > +    //USB0(1st wwan adapt) -> 3rd context, USB1(2nd wwan adapt) ->
> > 1st
> > context
> > +    gchar               *command;
> > +    command = g_strdup_printf ("^SWWAN=%s,%s,%s",
> > +                               "1",
> > +                               ctx->self->priv->pdp_cid, //Expect 1
> > or 3
> > +
> > g_ascii_strncasecmp(ctx->self->priv->pdp_cid, "3", 1)==0  ? "1" :
> > "2");
> > +
> > +    ctx->self->priv->swwan_read_write = 1;
> > +
> > +    //Start the swwan connection. The next state will be preformed
> > by the
> > callback.
> > +    mm_base_modem_at_command_full (ctx->modem,
> > +                                   ctx->primary,
> > +                                   command,
> > +                                   10,/*Seen it take 5 seconds :0 */
> > +                                   FALSE,
> > +                                   FALSE,
> > +                                   NULL,
> > +                                   (GAsyncReadyCallback)get_swwan_re
> > sponse,
> > +                                   g_object_ref (ctx->self));
> > +
> > +    g_free (command);
> > +}
> > +
> > +static void
> > +send_swwan_disconnect_command(Control3gppContext *ctx)
> > +{
> > +    gchar               *command;
> > +    command = g_strdup_printf ("^SWWAN=%s,%s,%s",
> > +                               "0",
> > +                               ctx->self->priv->pdp_cid,
> > +
> > g_ascii_strncasecmp(ctx->self->priv->pdp_cid, "3", 1)==0  ? "1" :
> > "2");
> > +
> > +    ctx->self->priv->swwan_read_write = 1;
> > +
> > +    //Check for swwan connection. The next state will be preformed
> > by the
> > callback.
> > +    mm_base_modem_at_command_full (ctx->modem,
> > +                                   ctx->primary,
> > +                                   command,
> > +                                   10,
> > +                                   FALSE,
> > +                                   FALSE,
> > +                                   NULL,
> > +                                   (GAsyncReadyCallback)get_swwan_re
> > sponse,
> > +                                   g_object_ref (ctx->self));
> > +
> > +    g_free (command);
> > +}
> > +
> > +
> > +
> > +
> > +/*******************************************************************
> > **********/
> > +/* Connect 3GPP */
> > +
> > +static gint
> > +cinterion_parse_auth_type (MMBearerAllowedAuth mm_auth)
> > +{
> > +    switch (mm_auth) {
> > +    case MM_BEARER_ALLOWED_AUTH_NONE:
> > +        return MM_BEARER_CINTERION_AUTH_NONE;
> > +    case MM_BEARER_ALLOWED_AUTH_PAP:
> > +        return MM_BEARER_CINTERION_AUTH_PAP;
> > +    case MM_BEARER_ALLOWED_AUTH_CHAP:
> > +        return MM_BEARER_CINTERION_AUTH_CHAP;
> > +    case MM_BEARER_ALLOWED_AUTH_MSCHAPV2:
> > +        return MM_BEARER_CINTERION_AUTH_MSCHAPV2;
> > +    default:
> > +        return MM_BEARER_CINTERION_AUTH_UNKNOWN;
> > +    }
> > +}
> > +
> > +static void
> > +connect_3gpp_context_complete_and_free (Control3gppContext *ctx)
> > +{
> > +    g_simple_async_result_complete_in_idle (ctx->result);
> > +    g_object_unref (ctx->cancellable);
> > +    g_object_unref (ctx->result);
> > +    g_object_unref (ctx->modem);
> > +    g_object_unref (ctx->self);
> > +    g_clear_object (&ctx->ipv4_config);
> > +    g_clear_object (&ctx->data);
> > +    g_clear_object (&ctx->primary);
> > +
> > +    g_slice_free (Control3gppContext, ctx);
> > +}
> > +
> > +static MMBearerConnectResult *
> > +connect_3gpp_finish (MMBroadbandBearer *self,
> > +                     GAsyncResult *res,
> > +                     GError **error)
> > +{
> > +    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT
> > (res), error))
> > +        return NULL;
> > +
> > +    return mm_bearer_connect_result_ref
> > (g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT
> > (res)));
> > +}
> > +
> > +static gchar *
> > +build_cinterion_pdp_context_string(Control3gppContext *ctx)
> > +{
> > +    const gchar         *apn = NULL;
> > +    const gchar         *user = NULL;
> > +    const gchar         *passwd = NULL;
> > +    MMBearerAllowedAuth  auth;
> > +    gint                 encoded_auth =
> > MM_BEARER_CINTERION_AUTH_UNKNOWN;
> > +    gchar               *command;
> > +
> > +    apn = mm_bearer_properties_get_apn (mm_base_bearer_peek_config
> > (MM_BASE_BEARER (ctx->self)));
> > +    user = mm_bearer_properties_get_user (mm_base_bearer_peek_config
> > (MM_BASE_BEARER (ctx->self)));
> > +    passwd = mm_bearer_properties_get_password
> > (mm_base_bearer_peek_config
> > (MM_BASE_BEARER (ctx->self)));
> > +    auth = mm_bearer_properties_get_allowed_auth
> > (mm_base_bearer_peek_config (MM_BASE_BEARER (ctx->self)));
> > +    encoded_auth = cinterion_parse_auth_type (auth);
> > +
> > +    /* Default to no authentication if not specified */
> > +    if (encoded_auth == MM_BEARER_CINTERION_AUTH_UNKNOWN) {
> > +        encoded_auth = MM_BEARER_CINTERION_AUTH_NONE;
> > +        mm_dbg ("Unable to detect authentication type. Defaulting
> > to:%i",
> > encoded_auth);
> > +    }
> > +
> > +    //TODO: Get IP type if specific protocol was specified.
> > Hardcoded to
> > IPV4 for now.
> > +
> > +    if (!user && !passwd)
> > +        command = g_strdup_printf
> > ("+CGDCONT=%s,\"IP\",\"%s\",\"0.0.0.0\",0,0",
> > +                                   ctx->self->priv->pdp_cid,
> > +                                   apn == NULL ? "" : apn);
> > +
> > +    /*TODO: Can't test this as we can't get a hold of a SIM w/ this
> > feature atm. This is a place
> > +    * holder. When we can test this then it should be refactored &
> > split
> > into another state so we
> > +    * can tell independently if the SGAUTH fails.
> > +    * Write Command
> > +    * AT^SGAUTH=<cid>[, <auth_type>[, <passwd>, <user>]]
> > +    * Response(s) 
> > +    * OK
> > +    * ERROR
> > +    * +CME ERROR: <err>
> > +    */
> > +    else
> > +        command = g_strdup_printf ("^SGAUTH=%s,%i,%s,%s;
> > +CGDCONT=%s,\"IP\",\"%s\",\"0.0.0.0\",0,0 ",
> > +                                   ctx->self->priv->pdp_cid,
> > +                                   encoded_auth,
> > +                                   passwd == NULL ? "" : passwd,
> > +                                   user == NULL ? "" : user,
> > +                                   ctx->self->priv->pdp_cid,
> > +                                   apn == NULL ? "" : apn);
> > +    return command;
> > +}
> > +
> > +static gboolean
> > +set_pdp_cid(Control3gppContext *ctx)
> > +{
> > +    GUdevClient         *client;
> > +    GUdevDevice         *data_device;
> > +
> > +    //Need the data port to figure out what context to activate.
> > +    client = g_udev_client_new (NULL);
> > +    data_device = (g_udev_client_query_by_subsystem_and_name (
> > +                       client,
> > +                       "net",
> > +                       mm_port_get_device (ctx->data)));
> > +    ctx->self->priv->bearer_interface =
> > g_udev_device_get_name(data_device);
> > +
> > +    //Map PDP context from the current Bearer. USB0 -> 3rd context,
> > USB1
> > -> 1st context
> > +    if (g_ascii_strncasecmp(ctx->self->priv->bearer_interface,
> > "usb0", 4)
> > == 0)
> > +        ctx->self->priv->  pdp_cid = "3";
> > +    else if (g_ascii_strncasecmp(ctx->self->priv->bearer_interface,
> > "usb1", 4) == 0)
> > +        ctx->self->priv->pdp_cid = "1";
> > +    else
> > +    {
> > +        mm_err ("Unable to map usb interface:(%s) to context",
> > ctx->self->priv->bearer_interface);
> > +
> > +        g_simple_async_result_set_error (ctx->result,
> > +                                         MM_CORE_ERROR,
> > +                                         MM_CORE_ERROR_FAILED,
> > +                                         "Internal error while
> > mapping USB
> > network interface.");
> > +
> > +        ctx->self->priv->connect_pending = NULL;
> > +        ctx->self->priv->disconnect_pending = NULL;
> > +
> > +        if (ctx->connect)
> > +            connect_3gpp_context_complete_and_free (ctx);
> > +        else
> > +            disconnect_3gpp_context_complete_and_free (ctx);
> > +
> > +        return FALSE;
> > +    }
> > +
> > +    return TRUE;
> > +}
> > +
> > +static void
> > +handle_cancel_connect(Control3gppContext *ctx)
> > +{
> > +    gchar               *command;
> > +
> > +    // Clear context
> > +    ctx->self->priv->connect_pending = NULL;
> > +
> > +    command = g_strdup_printf ("^SWWAN=%s,%s,%s",
> > +                               "0",
> > +                               ctx->self->priv->pdp_cid, //Expect 1
> > or 3,
> > +
> > g_ascii_strncasecmp(ctx->self->priv->pdp_cid, "3", 1)==0  ? "1" :
> > "2");
> > +
> > +    //Disconnect, may not succeed. Will not check response on
> > cancel.
> > +    mm_base_modem_at_command_full (ctx->modem,
> > +                                   ctx->primary,
> > +                                   command,
> > +                                   3,
> > +                                   FALSE,
> > +                                   FALSE,
> > +                                   NULL,
> > +                                   NULL, // Do not care the AT
> > response
> > +                                   NULL);
> > +
> > +    g_simple_async_result_set_error (ctx->result,
> > +                                     MM_CORE_ERROR,
> > +                                     MM_CORE_ERROR_CANCELLED,
> > +                                     "Cinterion connection operation
> > has
> > been cancelled");
> > +    connect_3gpp_context_complete_and_free (ctx);
> > +
> > +}
> > +
> > +static void
> > +context_ready (MMBaseModem *modem,
> > +                       GAsyncResult *res,
> > +                       MMBroadbandBearerCinterion *self)
> > +{
> > +    Control3gppContext  *ctx;
> > +    GError              *error = NULL;
> > +    const gchar         *response;
> > +
> > +    ctx = self->priv->connect_pending;
> > +    g_assert (ctx != NULL);
> > +
> > +    /* Balance refcount */
> > +    g_object_unref (self);
> > +
> > +    //Get the cgdcont write response. We expect: 'OK'
> > +    //Responses: OK, ERROR
> > +    response = mm_base_modem_at_command_finish (modem, res, &error);
> > +
> > +    if (!response || error != NULL) {
> > +        mm_err ("CGDCONT read- Error:%d response:%s", error->code,
> > response);
> > +
> > +        self->priv->connect_pending = NULL;
> > +        g_simple_async_result_take_error (ctx->result, error);
> > +        connect_3gpp_context_complete_and_free (ctx);
> > +
> > +        return;
> > +    }
> > +
> > +    /* Go to next step */
> > +    //ctx->connect = CONNECT_3GPP_CONTEXT_STEP_SET_SWWAN;
> > +    cinterion_3gpp_state_machine_logic(ctx->self);
> > +}
> > +
> > +static void
> > +connect_3gpp_context_step (Control3gppContext *ctx)
> > +{
> > +    /* Check for cancellation */
> > +    if (g_cancellable_is_cancelled (ctx->cancellable)) {
> > +        //Init the current context if not done already.
> > +        if (g_ascii_strncasecmp(ctx->self->priv->pdp_cid, "0",
> > 1)==0)
> > +            if(set_pdp_cid(ctx)) //Don't care about failure case for
> > cancel.
> > +
> > +        handle_cancel_connect(ctx);
> > +        return;
> > +    }
> > +
> > +    // Network-initiated disconnect should not be outstanding at
> > this
> > point,
> > +    // because it interferes with the connect attempt.
> > +    g_assert (ctx->self->priv->network_disconnect_pending_id == 0);
> > +    g_assert (ctx->self->priv->disconnect_pending == NULL);
> > +
> > +
> > +    switch (ctx->connect) {
> > +    case CONNECT_3GPP_CONTEXT_STEP_INIT: {
> > +        MMBearerIpFamily ip_family;
> > +
> > +        //Initialize variables, reminder!
> > +        ctx->usb0_state = CONNECTION_UNKNOWN;
> > +        ctx->usb1_state = CONNECTION_UNKNOWN;
> > +        ctx->self->priv->pdp_cid = "0"; //Cinterion doesn't have cid
> > == 0
> > +        ctx->self->priv->swwan_read_write = -1;
> > +        ctx->self->priv->retry_count = 0;
> > +
> > +        if(!set_pdp_cid(ctx))
> > +            return;
> > +
> > +        ip_family = mm_bearer_properties_get_ip_type
> > (mm_base_bearer_peek_config (MM_BASE_BEARER (ctx->self)));
> > +
> > +        //TODO: Fix so more than IPV4 can be used.
> > +        if (ip_family == MM_BEARER_IP_FAMILY_NONE ||
> > +            ip_family == MM_BEARER_IP_FAMILY_ANY) {
> > +            gchar *ip_family_str;
> > +
> > +            ip_family = mm_base_bearer_get_default_ip_family
> > (MM_BASE_BEARER (ctx->self));
> > +            ip_family_str =
> > mm_bearer_ip_family_build_string_from_mask
> > (ip_family);
> > +            mm_dbg ("No specific IP family requested, defaulting to
> > %s",
> > +                    ip_family_str);
> > +            g_free (ip_family_str);
> > +        }
> > +
> > +        /* Default to automatic/DHCP addressing */
> > +        ctx->ipv4_config = mm_bearer_ip_config_new ();
> > +        mm_bearer_ip_config_set_method (ctx->ipv4_config,
> > MM_BEARER_IP_METHOD_DHCP);
> > +
> > +        /* Store the context */
> > +        ctx->self->priv->connect_pending = ctx;
> > +
> > +        cinterion_3gpp_state_machine_logic(ctx->self);
> > +        return;
> > +    }
> > +    case CONNECT_3GPP_CONTEXT_STEP_VERIFY_SWWAN: {
> > +        send_swwan_read_command(ctx);
> > +        return;
> > +    }
> > +
> > +    case CONNECT_3GPP_CONTEXT_STEP_BEARER_PROPERTIES: {
> > +        gchar               *command = NULL;
> > +
> > +        //TODO: Rework for dual sim connections, don't disconnect
> > the
> > wrong one.
> > +        //If there is already an active SWWAN connection disconnect
> > before
> > trying to set it's context.
> > +        if ((ctx->usb0_state == CONNECTION_ACTIVE &&
> > g_ascii_strncasecmp(ctx->self->priv->pdp_cid, "3", 1)) || ctx-
> > >usb0_state
> > == CONNECTION_UNKNOWN ||
> > +            (ctx->usb1_state == CONNECTION_ACTIVE &&
> > g_ascii_strncasecmp(ctx->self->priv->pdp_cid, "1", 1)) || ctx-
> > >usb1_state
> > == CONNECTION_UNKNOWN)
> > +        {
> > +            send_swwan_disconnect_command(ctx);
> > +            g_free (command);
> > +            return;
> > +        }
> > +
> > +        command = build_cinterion_pdp_context_string(ctx);
> > +
> > +        //Set the PDP context with cgdcont.
> > +        mm_base_modem_at_command_full (ctx->modem,
> > +                                       ctx->primary,
> > +                                       command,
> > +                                       3,
> > +                                       FALSE,
> > +                                       FALSE,
> > +                                       NULL,
> > +                                       (GAsyncReadyCallback)context_
> > ready,
> > +                                       g_object_ref (ctx->self));
> > +
> > +        g_free (command);
> > +        return;
> > +    }
> > +    case CONNECT_3GPP_CONTEXT_STEP_SET_SWWAN: {
> > +        send_swwan_connect_command(ctx);
> > +        return;
> > +    }
> > +    case CONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS: {
> > +        send_swwan_read_command(ctx);
> > +        return;
> > +    }
> > +
> > +    case CONNECT_3GPP_CONTEXT_STEP_DONE: {
> > +        /* Clear context */
> > +        ctx->self->priv->connect_pending = NULL;
> > +        ctx->self->priv->bearer_interface = NULL;
> > +        ctx->self->priv->pdp_cid = NULL;
> > +        ctx->self->priv->swwan_read_write = -1;
> > +
> > +        /* Setup result */
> > +        {
> > +            if (ctx->ipv4_config) {
> > +                g_simple_async_result_set_op_res_gpointer (
> > +                    ctx->result,
> > +                    mm_bearer_connect_result_new (ctx->data,
> > ctx->ipv4_config, NULL),
> > +                    (GDestroyNotify)mm_bearer_connect_result_unref);
> > +            }
> > +            else {
> > +                g_simple_async_result_set_error (ctx->result,
> > +                                                 MM_CORE_ERROR,
> > +                                                 MM_CORE_ERROR_WRONG
> > _STATE,
> > +                                                 "Cinterion
> > connection
> > failed to set IP protocol");
> > +            }
> > +        }
> > +
> > +        connect_3gpp_context_complete_and_free (ctx);
> > +        return;
> > +    }
> > +    }
> > +}
> > +
> > +static void
> > +connect_3gpp (MMBroadbandBearer *self,
> > +              MMBroadbandModem *modem,
> > +              MMPortSerialAt *primary,
> > +              MMPortSerialAt *secondary,
> > +              GCancellable *cancellable,
> > +              GAsyncReadyCallback callback,
> > +              gpointer user_data)
> > +{
> > +    Control3gppContext  *ctx;
> > +    MMPort *port;
> > +
> > +    g_assert (primary != NULL);
> > +
> > +    // We need a net port
> > +    port = mm_base_modem_peek_best_data_port (MM_BASE_MODEM (modem),
> > MM_PORT_TYPE_NET);
> > +    if (!port) {
> > +        g_simple_async_report_error_in_idle (G_OBJECT (self),
> > +                                             callback,
> > +                                             user_data,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_NOT_FOUND
> > ,
> > +                                             "No valid data port
> > found to
> > launch connection");
> > +        return;
> > +    }
> > +
> > +
> > +    /* Setup connection context */
> > +    ctx = g_slice_new0 (Control3gppContext);
> > +    ctx->self = g_object_ref (self);
> > +    ctx->modem = g_object_ref (modem);
> > +    ctx->data = g_object_ref (port);
> > +    ctx->result = g_simple_async_result_new (G_OBJECT (self),
> > +                                             callback,
> > +                                             user_data,
> > +                                             connect_3gpp);
> > +    ctx->cancellable = g_object_ref (cancellable);
> > +    ctx->connect = CONNECT_3GPP_CONTEXT_STEP_INIT;
> > +
> > +    g_assert (ctx->self->priv->connect_pending == NULL);
> > +    g_assert (ctx->self->priv->disconnect_pending == NULL);
> > +
> > +    ctx->primary = get_dial_port (MM_BROADBAND_MODEM_CINTERION
> > (ctx->modem), ctx->data, primary);
> > +
> > +    /* Run! */
> > +    connect_3gpp_context_step (ctx);
> > +}
> > +
> > +/*******************************************************************
> > **********/
> > +/* Disconnect 3GPP */
> > +
> > +static void
> > +disconnect_3gpp_context_complete_and_free (Control3gppContext *ctx)
> > +{
> > +    g_simple_async_result_complete_in_idle (ctx->result);
> > +    g_object_unref (ctx->result);
> > +    g_object_unref (ctx->primary);
> > +    g_object_unref (ctx->self);
> > +    g_object_unref (ctx->modem);
> > +    g_slice_free (Control3gppContext, ctx);
> > +}
> > +
> > +static gboolean
> > +disconnect_3gpp_finish (MMBroadbandBearer *self,
> > +                        GAsyncResult *res,
> > +                        GError **error)
> > +{
> > +    return !g_simple_async_result_propagate_error
> > (G_SIMPLE_ASYNC_RESULT
> > (res), error);
> > +}
> > +
> > +static void
> > +disconnect_3gpp_context_step (Control3gppContext *ctx)
> > +{
> > +    //There is no cancel handling b/c the only thing we could do
> > would
> > +    //be disconnect, which is already happening and bad things can
> > happen
> > +    //if we abandon the modem in an unknown state.
> > +
> > +    //Don't allow disconnect while connect in progress.
> > +    g_assert (ctx->self->priv->connect_pending == NULL);
> > +
> > +    switch (ctx->disconnect) {
> > +    case DISCONNECT_3GPP_CONTEXT_STEP_INIT:
> > +        /* Store the context */
> > +        ctx->self->priv->disconnect_pending = ctx;
> > +
> > +        //Initialize variables, reminder!
> > +        ctx->self->priv->pdp_cid = "0";
> > +        ctx->self->priv->retry_count = 0;
> > +        ctx->self->priv->swwan_read_write = -1;
> > +
> > +        // We ignore any pending network-initiated disconnection in
> > order
> > to prevent it
> > +        // from interfering with the client-initiated disconnection,
> > as we
> > would like to
> > +        // proceed with the latter anyway.
> > +        if (ctx->self->priv->network_disconnect_pending_id != 0) {
> > +            g_source_remove
> > (ctx->self->priv->network_disconnect_pending_id);
> > +            ctx->self->priv->network_disconnect_pending_id = 0;
> > +        }
> > +
> > +        if(!set_pdp_cid(ctx))
> > +            return;
> > +
> > +        cinterion_3gpp_state_machine_logic(ctx->self);
> > +        return;
> > +
> > +    case DISCONNECT_3GPP_CONTEXT_STEP_SWWAN_DETACH:
> > +        // If too many retries (1s of wait between the retries),
> > failed
> > +        if ( ctx->self->priv->retry_count > 5) {
> > +            // Clear context
> > +            ctx->self->priv->disconnect_pending = NULL;
> > +            g_simple_async_result_set_error (ctx->result,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_TOO_MANY,
> > +                                             "Disconnection attempt
> > timed
> > out");
> > +
> > +            disconnect_3gpp_context_complete_and_free (ctx);
> > +            return;
> > +        }
> > +
> > +        //Has call back to next state.
> > +        send_swwan_disconnect_command(ctx);
> > +
> > +        //Only try to detach so many times.
> > +        ctx->self->priv->retry_count++;
> > +
> > +        return;
> > +    case DISCONNECT_3GPP_CONTEXT_STEP_CONNECTION_STATUS:
> > +         //Has call back to next state.
> > +         send_swwan_read_command(ctx);
> > +         return;
> > +
> > +    case DISCONNECT_3GPP_CONTEXT_STEP_DONE:
> > +        // Clear context
> > +        ctx->self->priv->disconnect_pending = NULL;
> > +        ctx->self->priv->pdp_cid = NULL;
> > +        ctx->self->priv->swwan_read_write = -1;
> > +        // Set data port as result
> > +        g_simple_async_result_set_op_res_gboolean (ctx->result,
> > TRUE);
> > +        disconnect_3gpp_context_complete_and_free (ctx);
> > +
> > +        return;
> > +    }
> > +}
> > +
> > +static void
> > +disconnect_3gpp (MMBroadbandBearer *self,
> > +                 MMBroadbandModem *modem,
> > +                 MMPortSerialAt *primary,
> > +                 MMPortSerialAt *secondary,
> > +                 MMPort *data,
> > +                 guint cid,
> > +                 GAsyncReadyCallback callback,
> > +                 gpointer user_data)
> > +{
> > +    Control3gppContext *ctx;
> > +    MMPort *port;
> > +
> > +    g_assert (primary != NULL);
> > +
> > +    ctx = g_slice_new0 (Control3gppContext);
> > +    ctx->self = g_object_ref (self);
> > +    ctx->modem = MM_BASE_MODEM (g_object_ref (modem));
> > +    ctx->result = g_simple_async_result_new (G_OBJECT (self),
> > +                                             callback,
> > +                                             user_data,
> > +                                             disconnect_3gpp);
> > +    ctx->disconnect = DISCONNECT_3GPP_CONTEXT_STEP_INIT;
> > +
> > +    g_assert (ctx->self->priv->connect_pending == NULL);
> > +    g_assert (ctx->self->priv->disconnect_pending == NULL);
> > +
> > +    //TODO: Not sure how else to get active data port? Can this be
> > done
> > without adding this
> > +    //function to mm-base-modem.c?
> > +    //TODO: Dual SIM how do we know which interface to
> > grab/disconnect if
> > two are active?
> > +    port = mm_base_modem_peek_current_data_port (MM_BASE_MODEM
> > (modem),
> > MM_PORT_TYPE_NET);
> > +    if (!port) {
> > +        g_simple_async_report_error_in_idle (G_OBJECT (self),
> > +                                             callback,
> > +                                             user_data,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_NOT_FOUND
> > ,
> > +                                             "No valid data port
> > found to
> > tear down.");
> > +        return;
> > +    }
> > +
> > +    ctx->data = g_object_ref (port);
> > +
> > +    ctx->primary = get_dial_port (MM_BROADBAND_MODEM_CINTERION
> > (ctx->modem), data, primary);
> > +
> > +    /* Start! */
> > +    disconnect_3gpp_context_step (ctx);
> > +}
> > +
> > +/*******************************************************************
> > **********/
> > +
> > +static gboolean
> > +network_disconnect_3gpp_delayed (MMBroadbandBearerCinterion *self)
> > +{
> > +    mm_dbg ("Disconnect bearer '%s' on network request.",
> > +            mm_base_bearer_get_path (MM_BASE_BEARER (self)));
> > +
> > +    self->priv->network_disconnect_pending_id = 0;
> > +    mm_base_bearer_report_connection_status (MM_BASE_BEARER (self),
> > +
> > MM_BEARER_CONNECTION_STATUS_DISCONNECTED);
> > +    return G_SOURCE_REMOVE;
> > +}
> > +
> > +//TODO: Test this.
> > +static void
> > +report_connection_status (MMBaseBearer *bearer,
> > +                          MMBearerConnectionStatus status)
> > +{
> > +    MMBroadbandBearerCinterion *self = MM_BROADBAND_BEARER_CINTERION
> > (bearer);
> > +
> > +    g_assert (status == MM_BEARER_CONNECTION_STATUS_CONNECTED ||
> > +              status == MM_BEARER_CONNECTION_STATUS_DISCONNECTING ||
> > +              status == MM_BEARER_CONNECTION_STATUS_DISCONNECTED);
> > +
> > +    /* When a pending connection / disconnection attempt is in
> > progress,
> > we use
> > +     * ^SWWAN? to check the connection status and thus temporarily
> > ignore
> > +     * unsolicited messages */
> > +    if (self->priv->connect_pending || self->priv-
> > >disconnect_pending)
> > +        return;
> > +
> > +    /* Ignore 'CONNECTED' */
> > +    if (status == MM_BEARER_CONNECTION_STATUS_CONNECTED)
> > +        return;
> > +
> > +    /* We already use ^SWWAN? to poll the connection status, so only
> > +     * handle network-initiated disconnection here. */
> > +    if (status == MM_BEARER_CONNECTION_STATUS_DISCONNECTING) {
> > +        /* MM_BEARER_CONNECTION_STATUS_DISCONNECTING is used to
> > indicate
> > that the
> > +         * reporting of disconnection should be delayed. See
> > MMBroadbandModemCinterion's
> > +         * bearer_report_connection_status for details. */
> > +        if (mm_base_bearer_get_status (bearer) ==
> > MM_BEARER_STATUS_CONNECTED &&
> > +            self->priv->network_disconnect_pending_id == 0) {
> > +            mm_dbg ("Delay network-initiated disconnection of bearer
> > '%s'",
> > +                    mm_base_bearer_get_path (MM_BASE_BEARER
> > (self)));
> > +            self->priv->network_disconnect_pending_id =
> > (g_timeout_add_seconds (
> > +                                                             4,
> > +                                                             (GSourc
> > eFunc)
> > network_disconnect_3gpp_delayed,
> > +                                                             self));
> > +        }
> > +        return;
> > +    }
> > +
> > +    /* Report disconnected right away */
> > +    MM_BASE_BEARER_CLASS
> > (mm_broadband_bearer_cinterion_parent_class)-
> > >report_connection_status (
> > +        bearer,
> > +        MM_BEARER_CONNECTION_STATUS_DISCONNECTED);
> > +}
> > +
> > +/*******************************************************************
> > **********/
> > +
> > +MMBaseBearer *
> > +mm_broadband_bearer_cinterion_new_finish (GAsyncResult *res,
> > +                                       GError **error)
> > +{
> > +    GObject *bearer;
> > +    GObject *source;
> > +
> > +    source = g_async_result_get_source_object (res);
> > +    bearer = g_async_initable_new_finish (G_ASYNC_INITABLE (source),
> > res,
> > error);
> > +    g_object_unref (source);
> > +
> > +    if (!bearer)
> > +        return NULL;
> > +
> > +    /* Only export valid bearers */
> > +    mm_base_bearer_export (MM_BASE_BEARER (bearer));
> > +
> > +    return MM_BASE_BEARER (bearer);
> > +}
> > +
> > +static void
> > +dispose (GObject *object)
> > +{
> > +    MMBroadbandBearerCinterion *self = MM_BROADBAND_BEARER_CINTERION
> > (object);
> > +
> > +    if (self->priv->network_disconnect_pending_id != 0) {
> > +        g_source_remove (self->priv->network_disconnect_pending_id);
> > +        self->priv->network_disconnect_pending_id = 0;
> > +    }
> > +
> > +    G_OBJECT_CLASS (mm_broadband_bearer_cinterion_parent_class)-
> > >dispose
> > (object);
> > +}
> > +
> > +void
> > +mm_broadband_bearer_cinterion_new (MMBroadbandModemCinterion *modem,
> > +                                MMBearerProperties *config,
> > +                                GCancellable *cancellable,
> > +                                GAsyncReadyCallback callback,
> > +                                gpointer user_data)
> > +{
> > +    g_async_initable_new_async (
> > +        MM_TYPE_BROADBAND_BEARER_CINTERION,
> > +        G_PRIORITY_DEFAULT,
> > +        cancellable,
> > +        callback,
> > +        user_data,
> > +        MM_BASE_BEARER_MODEM, modem,
> > +        MM_BASE_BEARER_CONFIG, config,
> > +        NULL);
> > +}
> > +
> > +static void
> > +mm_broadband_bearer_cinterion_init (MMBroadbandBearerCinterion
> > *self)
> > +{
> > +    // Initialize private data
> > +    self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
> > +
> >  MM_TYPE_BROADBAND_BEARER_CINTERION,
> > +
> >  MMBroadbandBearerCinterionPrivate);
> > +}
> > +
> > +static void
> > +mm_broadband_bearer_cinterion_class_init
> > (MMBroadbandBearerCinterionClass
> > *klass)
> > +{
> > +    GObjectClass *object_class = G_OBJECT_CLASS (klass);
> > +    MMBaseBearerClass *base_bearer_class = MM_BASE_BEARER_CLASS
> > (klass);
> > +    MMBroadbandBearerClass *broadband_bearer_class =
> > MM_BROADBAND_BEARER_CLASS (klass);
> > +
> > +    g_type_class_add_private (object_class, sizeof
> > (MMBroadbandBearerCinterionPrivate));
> > +
> > +    object_class->dispose = dispose;
> > +    base_bearer_class->report_connection_status =
> > report_connection_status; //TODO:What triggers this?
> > +
> > +    broadband_bearer_class->connect_3gpp = connect_3gpp;
> > +    broadband_bearer_class->connect_3gpp_finish =
> > connect_3gpp_finish;
> > +    broadband_bearer_class->disconnect_3gpp = disconnect_3gpp;
> > +    broadband_bearer_class->disconnect_3gpp_finish =
> > disconnect_3gpp_finish;
> > +}
> > diff --git a/plugins/cinterion/mm-broadband-bearer-cinterion.h
> > b/plugins/cinterion/mm-broadband-bearer-cinterion.h
> > new file mode 100644
> > index 0000000..8f315db
> > --- /dev/null
> > +++ b/plugins/cinterion/mm-broadband-bearer-cinterion.h
> > @@ -0,0 +1,56 @@
> > +/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset:
> > 4 -*-
> > */
> > +/*
> > + * This program is free software; you can redistribute it and/or
> > modify
> > + * it under the terms of the GNU General Public License as published
> > by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details:
> > + *
> > + * Copyright (C) 2016 Trimble Navigation Limited
> > + * Author: Matthew Stanger <Matthew_Stanger at trimble.com>
> > + */
> > +
> > +#ifndef MM_BROADBAND_BEARER_CINTERION_H
> > +#define MM_BROADBAND_BEARER_CINTERION_H
> > +
> > +#include <glib.h>
> > +#include <glib-object.h>
> > +
> > +#include "mm-broadband-bearer.h"
> > +#include "mm-broadband-modem-cinterion.h"
> > +
> > +#define MM_TYPE_BROADBAND_BEARER_CINTERION
> >  (mm_broadband_bearer_cinterion_get_type ())
> > +#define MM_BROADBAND_BEARER_CINTERION(obj)
> >  (G_TYPE_CHECK_INSTANCE_CAST ((obj),
> > MM_TYPE_BROADBAND_BEARER_CINTERION,
> > MMBroadbandBearerCinterion))
> > +#define MM_BROADBAND_BEARER_CINTERION_CLASS(klass)
> >  (G_TYPE_CHECK_CLASS_CAST
> > ((klass),  MM_TYPE_BROADBAND_BEARER_CINTERION,
> > MMBroadbandBearerCinterionClass))
> > +#define MM_IS_BROADBAND_BEARER_CINTERION(obj)
> > (G_TYPE_CHECK_INSTANCE_TYPE ((obj),
> > MM_TYPE_BROADBAND_BEARER_CINTERION))
> > +#define MM_IS_BROADBAND_BEARER_CINTERION_CLASS(klass)
> > (G_TYPE_CHECK_CLASS_TYPE
> > ((klass),  MM_TYPE_BROADBAND_BEARER_CINTERION))
> > +#define MM_BROADBAND_BEARER_CINTERION_GET_CLASS(obj)
> >  (G_TYPE_INSTANCE_GET_CLASS
> > ((obj),  MM_TYPE_BROADBAND_BEARER_CINTERION,
> > MMBroadbandBearerCinterionClass))
> > +
> > +typedef struct _MMBroadbandBearerCinterion
> > MMBroadbandBearerCinterion;
> > +typedef struct _MMBroadbandBearerCinterionClass
> > MMBroadbandBearerCinterionClass;
> > +typedef struct _MMBroadbandBearerCinterionPrivate
> > MMBroadbandBearerCinterionPrivate;
> > +
> > +struct _MMBroadbandBearerCinterion {
> > +    MMBroadbandBearer parent;
> > +    MMBroadbandBearerCinterionPrivate *priv;
> > +};
> > +
> > +struct _MMBroadbandBearerCinterionClass {
> > +    MMBroadbandBearerClass parent;
> > +};
> > +
> > +GType mm_broadband_bearer_cinterion_get_type (void);
> > +
> > +void          mm_broadband_bearer_cinterion_new
> >  (MMBroadbandModemCinterion *modem,
> > +                                                     MMBearerPropert
> > ies
> > *config,
> > +                                                     GCancellable
> > *cancellable,
> > +                                                     GAsyncReadyCall
> > back
> > callback,
> > +                                                     gpointer
> > user_data);
> > +MMBaseBearer *mm_broadband_bearer_cinterion_new_finish (GAsyncResult
> > *res,
> > +                                                     GError
> > **error);
> > +
> > +#endif /* MM_BROADBAND_BEARER_CINTERION_H */
> > diff --git a/plugins/cinterion/mm-broadband-modem-cinterion.c
> > b/plugins/cinterion/mm-broadband-modem-cinterion.c
> > index 4882a41..ac1c5f5 100644
> > --- a/plugins/cinterion/mm-broadband-modem-cinterion.c
> > +++ b/plugins/cinterion/mm-broadband-modem-cinterion.c
> > @@ -12,7 +12,9 @@
> >   *
> >   * Copyright (C) 2011 Ammonit Measurement GmbH
> >   * Copyright (C) 2011 Google Inc.
> > + * Copyright (C) 2016 Trimble Navigation Limited
> >   * Author: Aleksander Morgado <aleksander at lanedo.com>
> > + * Contributor: Matthew Stanger <matthew_stanger at trimble.com>
> >   */
> >
> >  #include <config.h>
> > @@ -22,6 +24,8 @@
> >  #include <string.h>
> >  #include <unistd.h>
> >  #include <ctype.h>
> > +#include <gudev/gudev.h>
> > +
> >
> >  #include "ModemManager.h"
> >  #include "mm-modem-helpers.h"
> > @@ -36,6 +40,7 @@
> >  #include "mm-broadband-modem-cinterion.h"
> >  #include "mm-modem-helpers-cinterion.h"
> >  #include "mm-common-cinterion.h"
> > +#include "mm-broadband-bearer-cinterion.h"
> >
> >  static void iface_modem_init      (MMIfaceModem *iface);
> >  static void iface_modem_3gpp_init (MMIfaceModem3gpp *iface);
> > @@ -50,6 +55,12 @@ G_DEFINE_TYPE_EXTENDED (MMBroadbandModemCinterion,
> > mm_broadband_modem_cinterion,
> >                          G_IMPLEMENT_INTERFACE
> > (MM_TYPE_IFACE_MODEM_MESSAGING, iface_modem_messaging_init)
> >                          G_IMPLEMENT_INTERFACE
> > (MM_TYPE_IFACE_MODEM_LOCATION, iface_modem_location_init))
> >
> > +typedef enum {
> > +    FEATURE_SUPPORT_UNKNOWN,
> > +    FEATURE_NOT_SUPPORTED,
> > +    FEATURE_SUPPORTED
> > +} FeatureSupport;
> > +
> >  struct _MMBroadbandModemCinterionPrivate {
> >      /* Flag to know if we should try AT^SIND or not to get psinfo */
> >      gboolean sind_psinfo;
> > @@ -69,6 +80,9 @@ struct _MMBroadbandModemCinterionPrivate {
> >      GArray *cnmi_supported_bm;
> >      GArray *cnmi_supported_ds;
> >      GArray *cnmi_supported_bfr;
> > +
> > +    FeatureSupport swwan_support;
> > +
> >  };
> >
> >  /*******************************************************************
> > **********/
> > @@ -117,7 +131,7 @@ cnmi_test_ready (MMBaseModem *self,
> >  {
> >      GError *error = NULL;
> >
> > -    mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res,
> > &error);
> > +     mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res,
> > &error);
> >      if (error)
> >          g_simple_async_result_take_error (simple, error);
> >      else
> > @@ -727,10 +741,16 @@ get_access_technology_from_psinfo (const gchar
> > *psinfo,
> >          case 9:
> >          case 10:
> >              return (MM_MODEM_ACCESS_TECHNOLOGY_HSDPA |
> > MM_MODEM_ACCESS_TECHNOLOGY_HSUPA);
> > +        case 16:
> > +        case 17:
> > +            return MM_MODEM_ACCESS_TECHNOLOGY_LTE;
> >          default:
> > +            mm_dbg ("Unable to identify access technology in
> > case:%i",
> > psinfoval);
> >              break;
> >          }
> >      }
> > +    else
> > +        mm_err ("FAILED get_access_technology_from_psinfo-int");
> >
> >      g_set_error (error,
> >                   MM_CORE_ERROR,
> > @@ -1648,6 +1668,259 @@ setup_ports (MMBroadbandModem *self)
> >  }
> >
> >  /*******************************************************************
> > **********/
> > +/* Create Bearer (Modem interface) */
> > +
> > +typedef struct {
> > +    MMBroadbandModemCinterion *self;
> > +    GSimpleAsyncResult *result;
> > +    MMBearerProperties *properties;
> > +} CreateBearerContext;
> > +
> > +static void
> > +create_bearer_context_complete_and_free (CreateBearerContext *ctx)
> > +{
> > +    g_simple_async_result_complete (ctx->result);
> > +    g_object_unref (ctx->result);
> > +    g_object_unref (ctx->self);
> > +    g_object_unref (ctx->properties);
> > +    g_slice_free (CreateBearerContext, ctx);
> > +}
> > +
> > +static MMBaseBearer *
> > +cinterion_modem_create_bearer_finish (MMIfaceModem *self,
> > +                                   GAsyncResult *res,
> > +                                   GError **error)
> > +{
> > +    MMBaseBearer *bearer;
> > +
> > +    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT
> > (res), error))
> > +        return NULL;
> > +
> > +    bearer = g_simple_async_result_get_op_res_gpointer
> > (G_SIMPLE_ASYNC_RESULT (res));
> > +    mm_dbg ("New cinterion bearer created at DBus path '%s'",
> > mm_base_bearer_get_path (bearer));
> > +    return g_object_ref (bearer);
> > +}
> > +
> > +static void
> > +broadband_bearer_cinterion_new_ready (GObject *source,
> > +                                   GAsyncResult *res,
> > +                                   CreateBearerContext *ctx)
> > +{
> > +    MMBaseBearer *bearer;
> > +    GError *error = NULL;
> > +
> > +    bearer = mm_broadband_bearer_cinterion_new_finish (res, &error);
> > +    if (!bearer)
> > +        g_simple_async_result_take_error (ctx->result, error);
> > +    else
> > +        g_simple_async_result_set_op_res_gpointer (ctx->result,
> > bearer,
> > (GDestroyNotify)g_object_unref);
> > +    create_bearer_context_complete_and_free (ctx);
> > +}
> > +
> > +static void
> > +broadband_bearer_new_ready (GObject *source,
> > +                            GAsyncResult *res,
> > +                            CreateBearerContext *ctx)
> > +{
> > +    MMBaseBearer *bearer;
> > +    GError *error = NULL;
> > +
> > +    bearer = mm_broadband_bearer_new_finish (res, &error);
> > +    if (!bearer)
> > +        g_simple_async_result_take_error (ctx->result, error);
> > +    else
> > +        g_simple_async_result_set_op_res_gpointer (ctx->result,
> > bearer,
> > (GDestroyNotify)g_object_unref);
> > +    create_bearer_context_complete_and_free (ctx);
> > +}
> > +
> > +static void
> > +create_bearer_for_net_port (CreateBearerContext *ctx)
> > +{
> > +    switch (ctx->self->priv->swwan_support) {
> > +    case FEATURE_SUPPORT_UNKNOWN:
> > +        g_assert_not_reached ();
> > +    case FEATURE_NOT_SUPPORTED:
> > +        mm_dbg ("^SWWAN not supported, creating default bearer...");
> > +        mm_broadband_bearer_new (MM_BROADBAND_MODEM (ctx->self),
> > +                                 ctx->properties,
> > +                                 NULL, /* cancellable */
> > +
> > (GAsyncReadyCallback)broadband_bearer_new_ready,
> > +                                 ctx);
> > +        return;
> > +    case FEATURE_SUPPORTED:
> > +        mm_dbg ("^SWWAN supported, creating cinterion bearer...");
> > +        mm_broadband_bearer_cinterion_new
> > (MM_BROADBAND_MODEM_CINTERION
> > (ctx->self),
> > +                                        ctx->properties,
> > +                                        NULL, /* cancellable */
> > +
> >  (GAsyncReadyCallback)broadband_bearer_cinterion_new_ready,
> > +                                        ctx);
> > +        return;
> > +    }
> > +}
> > +
> > +static MMPortSerialAt *
> > +peek_port_at_for_data (MMBroadbandModemCinterion *self,
> > +                       MMPort *port)
> > +{
> > +    GList *cdc_wdm_at_ports, *l;
> > +    const gchar *net_port_parent_path;
> > +
> > +    g_warn_if_fail (mm_port_get_subsys (port) ==
> > MM_PORT_SUBSYS_NET);
> > +    net_port_parent_path = mm_port_get_parent_path (port);
> > +
> > +    if (!net_port_parent_path) {
> > +        g_warning ("(%s) no parent path for net port",
> > mm_port_get_device
> > (port));
> > +        return NULL;
> > +    }
> > +
> > +    //Find the port to send AT commands on...
> > +    cdc_wdm_at_ports = mm_base_modem_find_ports (MM_BASE_MODEM
> > (self),
> > +                                                 MM_PORT_SUBSYS_USB,
> > +                                                 MM_PORT_TYPE_NET,
> > +                                                 NULL);
> > +
> > +
> > +    for (l = cdc_wdm_at_ports; l; l = l->next) {
> > +        const gchar  *wdm_port_parent_path;
> > +
> > +        g_assert (MM_IS_PORT_SERIAL_AT (l->data));
> > +        wdm_port_parent_path = mm_port_get_parent_path (MM_PORT (l-
> > >data));
> > +
> > +        if (wdm_port_parent_path && g_str_equal
> > (wdm_port_parent_path,
> > net_port_parent_path))
> > +           return MM_PORT_SERIAL_AT (l->data);
> > +    }
> > +
> > +    return NULL;
> > +}
> > +
> > +MMPortSerialAt *
> > +mm_broadband_modem_cinterion_peek_port_at_for_data
> > (MMBroadbandModemCinterion *self,
> > +                                                 MMPort *port)
> > +{
> > +    MMPortSerialAt *found;
> > +
> > +    g_assert (self->priv->swwan_support == FEATURE_SUPPORTED);
> > +
> > +    found = peek_port_at_for_data (self, port);
> > +    if (!found)
> > +        mm_warn ("Couldn't find associated cdc-wdm port for
> > 'net/%s'",
> > +                 mm_port_get_device (port));
> > +    return found;
> > +}
> > +
> > +static void
> > +ensure_swwan_support_checked (MMBroadbandModemCinterion *self,
> > +                                MMPort *port)
> > +{
> > +    GUdevClient *client;
> > +    GUdevDevice *data_device;
> > +
> > +    /* Initialize the swwan feature */
> > +    if (self->priv->swwan_support != FEATURE_SUPPORT_UNKNOWN)
> > +        return;
> > +
> > +    /* First, check for devices which could support SWWAN. They
> > +     * will be tagged by udev as net devices. */
> > +    client = g_udev_client_new (NULL);
> > +    data_device = (g_udev_client_query_by_subsystem_and_name (
> > +                       client,
> > +                       "net",
> > +                       mm_port_get_device (port)));
> > +
> > +    /* udevadm info for Cinterion PLS8-X v3.017 Modem
> > +        P: /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-
> > 2:1.10/net/usb0
> > +        E:
> > DEVPATH=/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.10/net/usb0
> > +        E: ID_BUS=usb
> > +        E: ID_MM_CANDIDATE=1
> > +        E: ID_MODEL=LTE_Modem
> > +        E: ID_MODEL_ENC=LTE\x20Modem
> > +        E: ID_MODEL_FROM_DATABASE=2.0 root hub
> > +        E: ID_MODEL_ID=0061
> > +        E: ID_NET_NAME_MAC=enxdeadbeef0000
> > +        E: ID_NET_NAME_PATH=enp0s20u2i10
> > +        E: ID_REVISION=0232
> > +        E: ID_SERIAL=Cinterion_LTE_Modem
> > +        E: ID_TYPE=generic
> > +            E: ID_USB_DRIVER=cdc_ether
> > +        E: ID_USB_INTERFACES=:020201:0a0000:020600:
> > +        E: ID_USB_INTERFACE_NUM=0a
> > +        E: ID_VENDOR=Cinterion
> > +        E: ID_VENDOR_ENC=Cinterion
> > +        E: ID_VENDOR_FROM_DATABASE=Linux Foundation
> > +        E: ID_VENDOR_ID=1e2d
> > +        E: IFINDEX=11
> > +        E: INTERFACE=usb0
> > +        E: SUBSYSTEM=net
> > +        E: USEC_INITIALIZED=4142603761
> > +
> > +        P: /devices/pci0000:00/0000:00:14.0/usb3/3-2/3-2:1.11
> > +        E: DEVPATH=/devices/pci0000:00/0000:00:14.0/usb3/3-2/3-
> > 2:1.11
> > +        E: DEVTYPE=usb_interface
> > +        E: DRIVER=cdc_ether
> > +        E: ID_MODEL_FROM_DATABASE=2.0 root hub
> > +        E: ID_VENDOR_FROM_DATABASE=Linux Foundation
> > +        E: INTERFACE=10/0/0
> > +        E:
> > MODALIAS=usb:v1E2Dp0061d0232dc00dsc00dp00ic0Aisc00ip00in0B
> > +        E: PRODUCT=1e2d/61/232
> > +        E: SUBSYSTEM=usb
> > +        E: TYPE=0/0/0
> > +        E: USEC_INITIALIZED=604142604196
> > +    */
> > +
> > +    //Assumption - Cinterion modems that use cdc_ether will support
> > the
> > swwan via usb ethernet.
> > +    //Cinterion alluded to this idea when I spoke with their
> > engineering
> > support but stopped short
> > +    //of being able to confirm if all future/current models will be
> > this
> > way.
> > +    if (data_device &&
> > g_str_equal(g_udev_device_get_property(data_device,
> > "ID_USB_DRIVER"),"cdc_ether")) {
> > +        mm_dbg ("This device (%s) can support swwan feature",
> > mm_port_get_device (port));
> > +        self->priv->swwan_support = FEATURE_SUPPORTED;
> > +    }
> > +    else
> > +    {
> > +        self->priv->swwan_support = FEATURE_NOT_SUPPORTED;
> > +        mm_dbg ("This device (%s) can not support swwan feature",
> > mm_port_get_device (port));
> > +    }
> > +
> > +    /* Free the g_object*/
> > +    if (data_device)
> > +        g_object_unref (data_device);
> > +    if (client)
> > +        g_object_unref (client);
> > +}
> > +
> > +static void
> > +cinterion_modem_create_bearer (MMIfaceModem *self,
> > +                            MMBearerProperties *properties,
> > +                            GAsyncReadyCallback callback,
> > +                            gpointer user_data)
> > +{
> > +    CreateBearerContext *ctx;
> > +    MMPort *port;
> > +
> > +    ctx = g_slice_new0 (CreateBearerContext);
> > +    ctx->self = g_object_ref (self);
> > +    ctx->properties = g_object_ref (properties);
> > +    ctx->result = g_simple_async_result_new (G_OBJECT (self),
> > +                                             callback,
> > +                                             user_data,
> > +
> > cinterion_modem_create_bearer);
> > +
> > +    port = mm_base_modem_peek_best_data_port (MM_BASE_MODEM (self),
> > MM_PORT_TYPE_NET);
> > +
> > +    if (port) {
> > +        ensure_swwan_support_checked (ctx->self, port);
> > +        create_bearer_for_net_port (ctx);
> > +        return;
> > +    }
> > +
> > +    mm_dbg ("Creating default bearer...");
> > +    mm_broadband_bearer_new (MM_BROADBAND_MODEM (self),
> > +                             properties,
> > +                             NULL, /* cancellable */
> > +
> > (GAsyncReadyCallback)broadband_bearer_new_ready,
> > +                             ctx);
> > +}
> > +
> > +/*******************************************************************
> > **********/
> >
> >  MMBroadbandModemCinterion *
> >  mm_broadband_modem_cinterion_new (const gchar *device,
> > @@ -1675,6 +1948,7 @@ mm_broadband_modem_cinterion_init
> > (MMBroadbandModemCinterion *self)
> >
> >      /* Set defaults */
> >      self->priv->sind_psinfo = TRUE; /* Initially, always try to get
> > psinfo
> > */
> > +    self->priv->swwan_support = FEATURE_SUPPORT_UNKNOWN;
> >  }
> >
> >  static void
> > @@ -1683,7 +1957,7 @@ finalize (GObject *object)
> >      MMBroadbandModemCinterion *self = MM_BROADBAND_MODEM_CINTERION
> > (object);
> >
> >      g_free (self->priv->sleep_mode_cmd);
> > -    g_free (self->priv->manual_operator_id);
> > +    g_free (self->priv->manual_operator_id);
> >
> >      if (self->priv->cnmi_supported_mode)
> >          g_array_unref (self->priv->cnmi_supported_mode);
> > @@ -1704,6 +1978,8 @@ iface_modem_init (MMIfaceModem *iface)
> >  {
> >      iface_modem_parent = g_type_interface_peek_parent (iface);
> >
> > +    iface->create_bearer = cinterion_modem_create_bearer;
> > +    iface->create_bearer_finish =
> > cinterion_modem_create_bearer_finish;
> >      iface->load_supported_modes = load_supported_modes;
> >      iface->load_supported_modes_finish =
> > load_supported_modes_finish;
> >      iface->set_current_modes = set_current_modes;
> > @@ -1764,7 +2040,6 @@ mm_broadband_modem_cinterion_class_init
> > (MMBroadbandModemCinterionClass *klass)
> >  {
> >      GObjectClass *object_class = G_OBJECT_CLASS (klass);
> >      MMBroadbandModemClass *broadband_modem_class =
> > MM_BROADBAND_MODEM_CLASS (klass);
> > -
> >      g_type_class_add_private (object_class, sizeof
> > (MMBroadbandModemCinterionPrivate));
> >
> >      /* Virtual methods */
> > diff --git a/plugins/cinterion/mm-broadband-modem-cinterion.h
> > b/plugins/cinterion/mm-broadband-modem-cinterion.h
> > index 47f0dcb..b675f3d 100644
> > --- a/plugins/cinterion/mm-broadband-modem-cinterion.h
> > +++ b/plugins/cinterion/mm-broadband-modem-cinterion.h
> > @@ -48,4 +48,7 @@ MMBroadbandModemCinterion
> > *mm_broadband_modem_cinterion_new (const gchar *device
> >                                                               guint16
> > vendor_id,
> >                                                               guint16
> > product_id);
> >
> > +MMPortSerialAt *mm_broadband_modem_cinterion_peek_port_at_for_data
> > (MMBroadbandModemCinterion *self,
> > +                                                                 MMP
> > ort
> > *port);
> > +
> >  #endif /* MM_BROADBAND_MODEM_CINTERION_H */
> > diff --git a/plugins/cinterion/mm-common-cinterion.c
> > b/plugins/cinterion/mm-common-cinterion.c
> > index 6e4da70..79f8384 100644
> > --- a/plugins/cinterion/mm-common-cinterion.c
> > +++ b/plugins/cinterion/mm-common-cinterion.c
> > @@ -11,13 +11,15 @@
> >   * GNU General Public License for more details:
> >   *
> >   * Copyright (C) 2014 Ammonit Measurement GmbH
> > + * Copyright (C) 2016 Trimble Navigation Limited
> >   * Author: Aleksander Morgado <aleksander at aleksander.es>
> > + * Contributor: Matthew Stanger <matthew_stanger at trimble.com>
> >   */
> >
> >  #include "mm-common-cinterion.h"
> >  #include "mm-base-modem-at.h"
> > +#include "mm-log.h"
> >
> > -static MMIfaceModemLocation *iface_modem_location_parent;
> >
> >  /*******************************************************************
> > **********/
> >
> > @@ -25,11 +27,40 @@ static MMIfaceModemLocation
> > *iface_modem_location_parent;
> >  static GQuark cinterion_location_context_quark;
> >
> >  /*******************************************************************
> > **********/
> > +/* Def's and Enum's */
> > +
> > +typedef enum {
> > +    GPS_CONTEXT_STEP_SGPSS = 0,
> > +    GPS_CONTEXT_STEP_SGPSC_ANTENNA,
> > +    GPS_CONTEXT_STEP_SGPSC_ENGINE,
> > +    GPS_CONTEXT_STEP_SGPSC_OUTPUT,
> > +    GPS_CONTEXT_STEP_DONE,
> > +} ConnectGpsContextStep;
> > +
> > +typedef struct {
> > +    MMBaseModem *self;
> > +    GSimpleAsyncResult *result;
> > +    MMModemLocationSource source;
> > +    ConnectGpsContextStep enable_state;
> > +    ConnectGpsContextStep disable_state;
> > +    gpointer connect_pending;
> > +    gpointer disconnect_pending;
> > +    gint gps_retry;
> > +} LocationGatheringContext;
> >
> >  typedef struct {
> >      MMModemLocationSource enabled_sources;
> >  } LocationContext;
> >
> > +static MMIfaceModemLocation *iface_modem_location_parent;
> > +static void try_gps_enable (MMIfaceModemLocation *self,
> > +                LocationGatheringContext *ctx);
> > +static void try_gps_disable (MMIfaceModemLocation *self,
> > +                LocationGatheringContext *ctx);
> > +static void send_gps_command (MMIfaceModemLocation *self,
> > +                              LocationGatheringContext *ctx,
> > +                              gchar **command);
> > +
> >  static void
> >  location_context_free (LocationContext *ctx)
> >  {
> > @@ -127,13 +158,7 @@ mm_common_cinterion_location_load_capabilities
> > (MMIfaceModemLocation *self,
> >  }
> >
> >  /*******************************************************************
> > **********/
> > -/* Enable/Disable location gathering (Location interface) */
> > -
> > -typedef struct {
> > -    MMBaseModem *self;
> > -    GSimpleAsyncResult *result;
> > -    MMModemLocationSource source;
> > -} LocationGatheringContext;
> > +/* Common location gathering (Location interface) */
> >
> >  static void
> >  location_gathering_context_complete_and_free
> > (LocationGatheringContext
> > *ctx)
> > @@ -144,6 +169,145 @@ location_gathering_context_complete_and_free
> > (LocationGatheringContext *ctx)
> >      g_slice_free (LocationGatheringContext, ctx);
> >  }
> >
> > +static void
> > +location_gathering_context_complete_and_free_full
> > (LocationGatheringContext *ctx)
> > +{
> > +    //It's importiant that this parent function remains protected by
> > calls
> > where
> > +    //both context '*_pending' pointers could be active.
> > +    if (ctx->connect_pending != NULL)
> > +        ctx->connect_pending = NULL;
> > +    else
> > +        ctx->disconnect_pending = NULL;
> > +
> > +    location_gathering_context_complete_and_free(ctx);
> > +}
> > +
> > +static void
> > +promote_gps_state_from_response (MMBaseModem *self,
> > +                       GAsyncResult *res,
> > +                       LocationGatheringContext *ctx)
> > +{
> > +    GError *error = NULL;
> > +    ConnectGpsContextStep state;
> > +    gchar *result;
> > +
> > +    //Adjust for whether we're dis/en-ableing
> > +    if (ctx->connect_pending != NULL)
> > +        state = ctx->enable_state;
> > +    else
> > +    {
> > +        g_assert(ctx->disconnect_pending != NULL);
> > +        state = ctx->disable_state;
> > +    }
> > +
> > +    //We see that the 'Engine,1' command (PLS8) fails for no
> > apparent
> > reason
> > +    //on ATMEL AT91SAM9263 ARM & not x86. See
> > 'mm_common_cinterion_setup_gps_port'
> > +    //comments.
> > +    result = g_strdup (mm_base_modem_at_command_full_finish (self,
> > res,
> > &error));
> > +
> > +    //If we get an error don't progress at first, try the same state
> > again.
> > +    if ((!result && state != GPS_CONTEXT_STEP_SGPSS && ctx->
> > gps_retry <
> > 3))
> > +    {
> > +        state = GPS_CONTEXT_STEP_SGPSS;
> > +        ctx->gps_retry++;
> > +    }
> > +    else {
> > +
> > +
> > +    switch (state) {
> > +
> > +    //First step try's the legacy SGPSS command. If it fails don't
> > error
> > out
> > +    //continue on to send new Cinterion GPS commands and see if they
> > work.
> > +    case GPS_CONTEXT_STEP_SGPSS: {
> > +        if (!result) {
> > +            mm_info ("SGPSS command failed, will try another
> > Cinterion GPS
> > command.");
> > +            state = GPS_CONTEXT_STEP_SGPSC_ANTENNA;
> > +        }
> > +        else
> > +            state = GPS_CONTEXT_STEP_DONE;
> > +
> > +        break;
> > +    }
> > +    //If the new GPS enable comand fails then exit we are out of
> > things to
> > try.
> > +    //Only connect flow cares about errors.
> > +    case GPS_CONTEXT_STEP_SGPSC_ANTENNA: {
> > +        if (!result && ctx->disconnect_pending == NULL) {
> > +            mm_info ("SGPSC command failed, we are out of things to
> > try.");
> > +            g_simple_async_result_take_error (ctx->result, error);
> > +            location_gathering_context_complete_and_free_full (ctx);
> > +            return;
> > +        }
> > +        else
> > +             state = GPS_CONTEXT_STEP_SGPSC_ENGINE;
> > +
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_SGPSC_ENGINE: {
> > +        if (!result && ctx->disconnect_pending == NULL) {
> > +            g_simple_async_result_take_error (ctx->result, error);
> > +            location_gathering_context_complete_and_free_full (ctx);
> > +            return;
> > +        }
> > +        else
> > +            state = GPS_CONTEXT_STEP_SGPSC_OUTPUT;
> > +
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_SGPSC_OUTPUT: {
> > +        if (!result && ctx->disconnect_pending == NULL) {
> > +            g_simple_async_result_take_error (ctx->result, error);
> > +            location_gathering_context_complete_and_free_full (ctx);
> > +            return;
> > +        }
> > +        else
> > +            state = GPS_CONTEXT_STEP_DONE;
> > +
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_DONE: {
> > +        //Shouldn't get here, fall into default error.
> > +    }
> > +    default: {
> > +        g_simple_async_result_set_error (ctx->result,
> > +                                         MM_CORE_ERROR,
> > +                                         MM_CORE_ERROR_WRONG_STATE,
> > +                                         "Unknown gps state during
> > setup.");
> > +
> > +        location_gathering_context_complete_and_free_full (ctx);
> > +        g_free(result);
> > +        return;
> > +    }
> > +    }
> > +    }
> > +
> > +    //Save state and go back to dis/en-ableing
> > +    if (ctx->connect_pending != NULL) {
> > +        ctx->enable_state = state;
> > +        try_gps_enable(ctx->connect_pending, ctx);
> > +    }
> > +    else {
> > +        ctx->disable_state = state;
> > +        try_gps_disable(ctx->disconnect_pending, ctx);
> > +    }
> > +    g_free(result);
> > +}
> > +
> > +static void
> > +send_gps_command (MMIfaceModemLocation *self,
> > +                  LocationGatheringContext *ctx,
> > +                  gchar **command)
> > +{
> > +    mm_base_modem_at_command_full (MM_BASE_MODEM (self),
> > +                                   mm_base_modem_peek_best_at_port
> > (MM_BASE_MODEM (self), NULL),
> > +                                   *command,
> > +                                   5,
> > +                                   FALSE,
> > +                                   FALSE, /* raw */
> > +                                   NULL, /* cancellable */
> > +
> > (GAsyncReadyCallback)promote_gps_state_from_response,
> > +                                   ctx);
> > +}
> > +
> >  /******************************/
> >  /* Disable location gathering */
> >
> > @@ -157,15 +321,9 @@
> > mm_common_cinterion_disable_location_gathering_finish
> > (MMIfaceModemLocation *sel
> >
> >  static void
> >  gps_disabled_ready (MMBaseModem *self,
> > -                    GAsyncResult *res,
> >                      LocationGatheringContext *ctx)
> >  {
> > -    GError *error = NULL;
> > -
> > -    if (!mm_base_modem_at_command_full_finish (self, res, &error))
> > -        g_simple_async_result_take_error (ctx->result, error);
> > -    else
> > -        g_simple_async_result_set_op_res_gboolean (ctx->result,
> > TRUE);
> > +    g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
> >
> >      /* Only use the GPS port in NMEA/RAW setups */
> >      if (ctx->source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
> > @@ -178,11 +336,57 @@ gps_disabled_ready (MMBaseModem *self,
> >              mm_port_serial_close (MM_PORT_SERIAL (gps_port));
> >      }
> >
> > -    location_gathering_context_complete_and_free (ctx);
> > +    location_gathering_context_complete_and_free_full (ctx);
> > +}
> > +
> > +static void
> > +try_gps_disable (MMIfaceModemLocation *self,
> > +                LocationGatheringContext *ctx)
> > +{
> > +    gchar *gps_command;
> > +
> > +    switch (ctx->disable_state) {
> > +
> > +    //The old command to enable GPS, works on at least PSX8
> > +    case GPS_CONTEXT_STEP_SGPSS: {
> > +        gps_command = "^SGPSS=0";
> > +        break;
> > +    }
> > +    //Commands Power/Ant, Engine & Output w/ sgpsc are
> > +    //used by PLS8-X & E. Since around versions 2.0+
> > +    case GPS_CONTEXT_STEP_SGPSC_ANTENNA: {
> > +        gps_command = "^SGPSC=\"Power/Antenna\",\"off\"";
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_SGPSC_ENGINE: {
> > +        gps_command = "^SGPSC=\"Engine\",\"0\"";
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_SGPSC_OUTPUT: {
> > +        gps_command = "^SGPSC=\"NMEA/Output\",\"off\"";
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_DONE: {
> > +        gps_disabled_ready(MM_BASE_MODEM (self), ctx);
> > +        return;
> > +    }
> > +    default: {
> > +        g_simple_async_result_set_error (ctx->result,
> > +                                         MM_CORE_ERROR,
> > +                                         MM_CORE_ERROR_WRONG_STATE,
> > +                                         "Unknown gps state during
> > tear
> > down.");
> > +
> > +        location_gathering_context_complete_and_free_full (ctx);
> > +        return;
> > +    }
> > +    }
> > +
> > +    send_gps_command(self, ctx, &gps_command);
> > +    return;
> >  }
> >
> >  static void
> > -internal_disable_location_gathering (LocationGatheringContext *ctx)
> > +internal_disable_location_gathering (MMIfaceModemLocation *self,
> > LocationGatheringContext *ctx)
> >  {
> >      LocationContext *location_ctx;
> >      gboolean stop_gps = FALSE;
> > @@ -202,21 +406,30 @@ internal_disable_location_gathering
> > (LocationGatheringContext *ctx)
> >      }
> >
> >      if (stop_gps) {
> > -        /* We disable continuous GPS fixes */
> > -        mm_base_modem_at_command_full (MM_BASE_MODEM (ctx->self),
> > -                                       mm_base_modem_peek_best_at_po
> > rt
> > (MM_BASE_MODEM (ctx->self), NULL),
> > -                                       "AT^SGPSS=0",
> > -                                       3,
> > -                                       FALSE,
> > -                                       FALSE, /* raw */
> > -                                       NULL, /* cancellable */
> > -
> > (GAsyncReadyCallback)gps_disabled_ready,
> > -                                       ctx);
> > +        //Don't allow disconnects while trying to connect.
> > +        if (ctx->connect_pending != NULL)
> > +        {
> > +            g_simple_async_result_set_error (ctx->result,
> > +                                             MM_CORE_ERROR,
> > +                                             MM_CORE_ERROR_IN_PROGRE
> > SS,
> > +                                             "Can't disconnect GPS
> > while
> > another process is trying to connect it.");
> > +
> > +            //*_complete_and_free_full is safe to use for the
> > disconnect
> > flow after this point.
> > +            ctx->disconnect_pending = NULL;
> > +            location_gathering_context_complete_and_free (ctx);
> > +            return;
> > +        }
> > +
> > +        ctx->disable_state = GPS_CONTEXT_STEP_SGPSS;
> > +        ctx->disconnect_pending = self;
> > +        try_gps_disable(self, ctx);
> > +
> >          return;
> >      }
> >
> >      /* For any other location (e.g. 3GPP), or if still some GPS
> > needed,
> > just return */
> >      g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
> > +    ctx->disconnect_pending = NULL;
> >      location_gathering_context_complete_and_free (ctx);
> >  }
> >
> > @@ -236,12 +449,13 @@ parent_disable_location_gathering_ready
> > (MMIfaceModemLocation *self,
> >          } else {
> >              /* Fatal */
> >              g_simple_async_result_take_error (ctx->result, error);
> > +            ctx->disconnect_pending = NULL;
> >              location_gathering_context_complete_and_free (ctx);
> >              return;
> >          }
> >      }
> >
> > -    internal_disable_location_gathering (ctx);
> > +    internal_disable_location_gathering (self, ctx);
> >  }
> >
> >  void
> > @@ -259,6 +473,9 @@ mm_common_cinterion_disable_location_gathering
> > (MMIfaceModemLocation *self,
> >                                               user_data,
> >
> > mm_common_cinterion_disable_location_gathering);
> >      ctx->source = source;
> > +    ctx->connect_pending = NULL;
> > +    ctx->disconnect_pending = NULL;
> > +    ctx->gps_retry = 0;
> >
> >      /* Chain up parent's gathering enable */
> >      if (iface_modem_location_parent->disable_location_gathering) {
> > @@ -270,7 +487,7 @@ mm_common_cinterion_disable_location_gathering
> > (MMIfaceModemLocation *self,
> >          return;
> >      }
> >
> > -    internal_disable_location_gathering (ctx);
> > +    internal_disable_location_gathering (self, ctx);
> >  }
> >
> >  /*******************************************************************
> > **********/
> > @@ -286,16 +503,10 @@
> > mm_common_cinterion_enable_location_gathering_finish
> > (MMIfaceModemLocation *self
> >
> >  static void
> >  gps_enabled_ready (MMBaseModem *self,
> > -                   GAsyncResult *res,
> >                     LocationGatheringContext *ctx)
> >  {
> >      GError *error = NULL;
> >
> > -    if (!mm_base_modem_at_command_full_finish (self, res, &error)) {
> > -        g_simple_async_result_take_error (ctx->result, error);
> > -        location_gathering_context_complete_and_free (ctx);
> > -        return;
> > -    }
> >
> >      /* Only use the GPS port in NMEA/RAW setups */
> >      if (ctx->source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
> > @@ -312,12 +523,60 @@ gps_enabled_ready (MMBaseModem *self,
> >                                                   MM_CORE_ERROR,
> >                                                   MM_CORE_ERROR_FAILE
> > D,
> >                                                   "Couldn't open raw
> > GPS
> > serial port");
> > -        } else
> > +        }
> > +        else
> >              g_simple_async_result_set_op_res_gboolean (ctx->result,
> > TRUE);
> > -    } else
> > +
> > +    }
> > +    else
> >          g_simple_async_result_set_op_res_gboolean (ctx->result,
> > TRUE);
> >
> > -    location_gathering_context_complete_and_free (ctx);
> > +    location_gathering_context_complete_and_free_full (ctx);
> > +}
> > +
> > +static void
> > +try_gps_enable (MMIfaceModemLocation *self,
> > +                LocationGatheringContext *ctx)
> > +{
> > +    gchar *gps_command;
> > +
> > +    switch (ctx->enable_state) {
> > +
> > +    //The old command to enable GPS, works on at least PSX8
> > +    case GPS_CONTEXT_STEP_SGPSS: {
> > +        gps_command = "^SGPSS=4";
> > +        break;
> > +    }
> > +    //Commands Power/Ant, Engine & Output w/ sgpsc are
> > +    //used by PLS8-X & E. Since versions 2.0+
> > +    case GPS_CONTEXT_STEP_SGPSC_ANTENNA: {
> > +        gps_command = "^SGPSC=\"Power/Antenna\",\"on\"";
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_SGPSC_ENGINE: {
> > +        gps_command = "^SGPSC=\"Engine\",\"1\"";
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_SGPSC_OUTPUT: {
> > +        gps_command = "^SGPSC=\"NMEA/Output\",\"on\"";
> > +        break;
> > +    }
> > +    case GPS_CONTEXT_STEP_DONE: {
> > +        gps_enabled_ready(MM_BASE_MODEM (self), ctx);
> > +        return;
> > +    }
> > +    default: {
> > +        g_simple_async_result_set_error (ctx->result,
> > +                                         MM_CORE_ERROR,
> > +                                         MM_CORE_ERROR_WRONG_STATE,
> > +                                         "Unknown gps state during
> > setup.");
> > +        location_gathering_context_complete_and_free_full (ctx);
> > +        return;
> > +    }
> > +    }
> > +
> > +    send_gps_command(self, ctx, &gps_command);
> > +    return;
> >  }
> >
> >  static void
> > @@ -338,13 +597,13 @@ parent_enable_location_gathering_ready
> > (MMIfaceModemLocation *self,
> >          } else {
> >              /* Fatal */
> >              g_simple_async_result_take_error (ctx->result, error);
> > +            ctx->connect_pending = NULL;
> >              location_gathering_context_complete_and_free (ctx);
> >              return;
> >          }
> >      }
> >
> >      /* Now our own enabling */
> > -
> >      location_ctx = get_location_context (MM_BASE_MODEM (self));
> >
> >      /* NMEA and RAW are both enabled in the same way */
> > @@ -359,22 +618,33 @@ parent_enable_location_gathering_ready
> > (MMIfaceModemLocation *self,
> >          location_ctx->enabled_sources |= ctx->source;
> >      }
> >
> > +
> >      if (start_gps) {
> > -        /* We enable continuous GPS fixes */
> > -        mm_base_modem_at_command_full (MM_BASE_MODEM (self),
> > -                                       mm_base_modem_peek_best_at_po
> > rt
> > (MM_BASE_MODEM (self), NULL),
> > -                                       "AT^SGPSS=4",
> > -                                       3,
> > -                                       FALSE,
> > -                                       FALSE, /* raw */
> > -                                       NULL, /* cancellable */
> > -
> > (GAsyncReadyCallback)gps_enabled_ready,
> > -                                       ctx);
> > +        //Can only setup/tear down one thing at a time.
> > +        if (ctx->disconnect_pending != NULL)
> > +        {
> > +            g_simple_async_result_set_error (ctx->result,
> > +                                             MM_CORE_ERROR,
> > +
> ...
>
> [Message clipped]
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