Re: [MM] [PATCH] modem: use +CEREG to determine EPS network registration status



On 02/11/2013 07:44 PM, Ben Chan wrote:
> Aleksander and Dan,
> 
> How do you feel about this patch?
> 


Doesn't look bad, but I really need to read it carefully as it changed
lots of things. The idea is that plugins can specify whether they
require CEREG by setting MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED to
TRUE themselves, instead of automatically trying it when LTE support is
found, right? I now wonder how other AT-controlled LTE modems out there,
not just the Novatel LTE, handle this. Is anyone willing to give it a
try with other LTE modems?


> 
> 
> On Wed, Feb 6, 2013 at 3:15 PM, Ben Chan <benchan chromium org
> <mailto:benchan chromium org>> wrote:
> 
>     This patch adds the support for solicited/unsolicited EPS network
>     registration status via AT+CEREG, which is configurable via the
>     'iface-modem-3gpp-eps-network-supported' property of the
>     MMIfaceModem3gpp interface and is disabled by default.
>     ---
>      src/mm-broadband-modem-qmi.c   |   3 +
>      src/mm-broadband-modem.c       | 165
>     +++++++++++++++++++++++++++++++++++------
>      src/mm-iface-modem-3gpp.c      |  51 ++++++++++++-
>      src/mm-iface-modem-3gpp.h      |  10 ++-
>      src/mm-modem-helpers.c         |  82 +++++++++++++++-----
>      src/mm-modem-helpers.h         |   1 +
>      src/tests/test-modem-helpers.c | 121 +++++++++++++++++++++++-------
>      7 files changed, 365 insertions(+), 68 deletions(-)
> 
>     diff --git a/src/mm-broadband-modem-qmi.c b/src/mm-broadband-modem-qmi.c
>     index aa82f0e..05be718 100644
>     --- a/src/mm-broadband-modem-qmi.c
>     +++ b/src/mm-broadband-modem-qmi.c
>     @@ -3984,6 +3984,7 @@ static void
>      modem_3gpp_run_registration_checks (MMIfaceModem3gpp *self,
>                                          gboolean cs_supported,
>                                          gboolean ps_supported,
>     +                                    gboolean eps_supported,
>                                          GAsyncReadyCallback callback,
>                                          gpointer user_data)
>      {
>     @@ -4138,6 +4139,7 @@ static void
>      modem_3gpp_disable_unsolicited_registration_events
>     (MMIfaceModem3gpp *self,
>                                                          gboolean
>     cs_supported,
>                                                          gboolean
>     ps_supported,
>     +                                                    gboolean
>     eps_supported,
>                                                        
>      GAsyncReadyCallback callback,
>                                                          gpointer user_data)
>      {
>     @@ -4183,6 +4185,7 @@ static void
>      modem_3gpp_enable_unsolicited_registration_events (MMIfaceModem3gpp
>     *self,
>                                                         gboolean
>     cs_supported,
>                                                         gboolean
>     ps_supported,
>     +                                                   gboolean
>     eps_supported,
>                                                        
>     GAsyncReadyCallback callback,
>                                                         gpointer user_data)
>      {
>     diff --git a/src/mm-broadband-modem.c b/src/mm-broadband-modem.c
>     index 3778b56..505c42a 100644
>     --- a/src/mm-broadband-modem.c
>     +++ b/src/mm-broadband-modem.c
>     @@ -86,6 +86,7 @@ enum {
>          PROP_MODEM_3GPP_REGISTRATION_STATE,
>          PROP_MODEM_3GPP_CS_NETWORK_SUPPORTED,
>          PROP_MODEM_3GPP_PS_NETWORK_SUPPORTED,
>     +    PROP_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>          PROP_MODEM_CDMA_CDMA1X_REGISTRATION_STATE,
>          PROP_MODEM_CDMA_EVDO_REGISTRATION_STATE,
>          PROP_MODEM_CDMA_CDMA1X_NETWORK_SUPPORTED,
>     @@ -129,6 +130,7 @@ struct _MMBroadbandModemPrivate {
>          MMModem3gppRegistrationState modem_3gpp_registration_state;
>          gboolean modem_3gpp_cs_network_supported;
>          gboolean modem_3gpp_ps_network_supported;
>     +    gboolean modem_3gpp_eps_network_supported;
>          /* Implementation helpers */
>          GPtrArray *modem_3gpp_registration_regex;
> 
>     @@ -3280,6 +3282,7 @@ registration_state_changed (MMAtSerialPort *port,
>          gulong lac = 0, cell_id = 0;
>          MMModemAccessTechnology act = MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
>          gboolean cgreg = FALSE;
>     +    gboolean cereg = FALSE;
>          GError *error = NULL;
> 
>          if (!mm_3gpp_parse_creg_response (match_info,
>     @@ -3288,6 +3291,7 @@ registration_state_changed (MMAtSerialPort *port,
>                                            &cell_id,
>                                            &act,
>                                            &cgreg,
>     +                                      &cereg,
>                                            &error)) {
>              mm_warn ("error parsing unsolicited registration: %s",
>                       error && error->message ? error->message :
>     "(unknown)");
>     @@ -3298,6 +3302,8 @@ registration_state_changed (MMAtSerialPort *port,
>          /* Report new registration state */
>          if (cgreg)
>              mm_iface_modem_3gpp_update_ps_registration_state
>     (MM_IFACE_MODEM_3GPP (self), state);
>     +    else if (cereg)
>     +        mm_iface_modem_3gpp_update_eps_registration_state
>     (MM_IFACE_MODEM_3GPP (self), state);
>          else
>              mm_iface_modem_3gpp_update_cs_registration_state
>     (MM_IFACE_MODEM_3GPP (self), state);
> 
>     @@ -3484,12 +3490,16 @@ typedef struct {
>          GSimpleAsyncResult *result;
>          gboolean cs_supported;
>          gboolean ps_supported;
>     +    gboolean eps_supported;
>          gboolean run_cs;
>          gboolean run_ps;
>     +    gboolean run_eps;
>          gboolean running_cs;
>          gboolean running_ps;
>     +    gboolean running_eps;
>          GError *cs_error;
>          GError *ps_error;
>     +    GError *eps_error;
>      } RunRegistrationChecksContext;
> 
>      static void
>     @@ -3500,6 +3510,8 @@
>     run_registration_checks_context_complete_and_free
>     (RunRegistrationChecksContext
>              g_error_free (ctx->cs_error);
>          if (ctx->ps_error)
>              g_error_free (ctx->ps_error);
>     +    if (ctx->eps_error)
>     +        g_error_free (ctx->eps_error);
>          g_object_unref (ctx->result);
>          g_object_unref (ctx->self);
>          g_free (ctx);
>     @@ -3526,22 +3538,26 @@ registration_status_check_ready
>     (MMBroadbandModem *self,
>          guint i;
>          gboolean parsed;
>          gboolean cgreg;
>     +    gboolean cereg;
>          MMModem3gppRegistrationState state;
>          MMModemAccessTechnology act;
>          gulong lac;
>          gulong cid;
> 
>          /* Only one must be running */
>     -    g_assert (!(ctx->running_ps && ctx->running_cs) &&
>     -              (ctx->running_cs || ctx->running_ps));
>     +    g_assert ((ctx->running_cs ? 1 : 0) +
>     +              (ctx->running_ps ? 1 : 0) +
>     +              (ctx->running_eps ? 1 : 0) == 1);
> 
>          response = mm_base_modem_at_command_finish (MM_BASE_MODEM
>     (self), res, &error);
>          if (!response) {
>              g_assert (error != NULL);
>              if (ctx->running_cs)
>                  ctx->cs_error = error;
>     -        else
>     +        else if (ctx->running_ps)
>                  ctx->ps_error = error;
>     +        else
>     +            ctx->eps_error = error;
> 
>              run_registration_checks_context_step (ctx);
>              return;
>     @@ -3577,14 +3593,17 @@ registration_status_check_ready
>     (MMBroadbandModem *self,
>                                   response);
>              if (ctx->running_cs)
>                  ctx->cs_error = error;
>     -        else
>     +        else if (ctx->running_ps)
>                  ctx->ps_error = error;
>     +        else
>     +            ctx->eps_error = error;
> 
>              run_registration_checks_context_step (ctx);
>              return;
>          }
> 
>          cgreg = FALSE;
>     +    cereg = FALSE;
>          state = MM_MODEM_3GPP_REGISTRATION_STATE_UNKNOWN;
>          act = MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
>          lac = 0;
>     @@ -3595,6 +3614,7 @@ registration_status_check_ready
>     (MMBroadbandModem *self,
>                                                &cid,
>                                                &act,
>                                                &cgreg,
>     +                                          &cereg,
>                                                &error);
>          g_match_info_free (match_info);
> 
>     @@ -3606,8 +3626,10 @@ registration_status_check_ready
>     (MMBroadbandModem *self,
>                                       response);
>              if (ctx->running_cs)
>                  ctx->cs_error = error;
>     -        else
>     +        else if (ctx->running_ps)
>                  ctx->ps_error = error;
>     +        else
>     +            ctx->eps_error = error;
>              run_registration_checks_context_step (ctx);
>              return;
>          }
>     @@ -3616,10 +3638,20 @@ registration_status_check_ready
>     (MMBroadbandModem *self,
>          if (cgreg) {
>              if (ctx->running_cs)
>                  mm_dbg ("Got PS registration state when checking CS
>     registration state");
>     +        else if (ctx->running_eps)
>     +            mm_dbg ("Got PS registration state when checking EPS
>     registration state");
>              mm_iface_modem_3gpp_update_ps_registration_state
>     (MM_IFACE_MODEM_3GPP (self), state);
>     +    } else if (cereg) {
>     +        if (ctx->running_cs)
>     +            mm_dbg ("Got EPS registration state when checking CS
>     registration state");
>     +        else if (ctx->running_ps)
>     +            mm_dbg ("Got EPS registration state when checking PS
>     registration state");
>     +        mm_iface_modem_3gpp_update_eps_registration_state
>     (MM_IFACE_MODEM_3GPP (self), state);
>          } else {
>              if (ctx->running_ps)
>                  mm_dbg ("Got CS registration state when checking PS
>     registration state");
>     +        else if (ctx->running_eps)
>     +            mm_dbg ("Got CS registration state when checking EPS
>     registration state");
>              mm_iface_modem_3gpp_update_cs_registration_state
>     (MM_IFACE_MODEM_3GPP (self), state);
>          }
> 
>     @@ -3634,6 +3666,7 @@ run_registration_checks_context_step
>     (RunRegistrationChecksContext *ctx)
>      {
>          ctx->running_cs = FALSE;
>          ctx->running_ps = FALSE;
>     +    ctx->running_eps = FALSE;
> 
>          if (ctx->run_cs) {
>              ctx->running_cs = TRUE;
>     @@ -3661,12 +3694,29 @@ run_registration_checks_context_step
>     (RunRegistrationChecksContext *ctx)
>              return;
>          }
> 
>     +    if (ctx->run_eps) {
>     +        ctx->running_eps = TRUE;
>     +        ctx->run_eps = FALSE;
>     +        /* Check current EPS-registration state. */
>     +        mm_base_modem_at_command (MM_BASE_MODEM (ctx->self),
>     +                                  "+CEREG?",
>     +                                  10,
>     +                                  FALSE,
>     +                                
>      (GAsyncReadyCallback)registration_status_check_ready,
>     +                                  ctx);
>     +        return;
>     +    }
>     +
>          /* If all run checks returned errors we fail */
>     -    if ((ctx->ps_supported && ctx->ps_error && ctx->cs_supported &&
>     ctx->cs_error) ||
>     -        (ctx->ps_supported && ctx->ps_error && !ctx->cs_supported) ||
>     -        (ctx->cs_supported && ctx->cs_error && !ctx->ps_supported)) {
>     -        /* Prefer the PS error if any */
>     -        if (ctx->ps_error) {
>     +    if ((ctx->cs_supported || ctx->ps_supported ||
>     ctx->eps_supported) &&
>     +        (!ctx->cs_supported || ctx->cs_error) &&
>     +        (!ctx->ps_supported || ctx->ps_error) &&
>     +        (!ctx->eps_supported || ctx->eps_error)) {
>     +        /* Prefer the EPS, and then PS error if any */
>     +        if (ctx->eps_error) {
>     +            g_simple_async_result_set_from_error (ctx->result,
>     ctx->eps_error);
>     +            ctx->eps_error = NULL;
>     +        } else if (ctx->ps_error) {
>                  g_simple_async_result_set_from_error (ctx->result,
>     ctx->ps_error);
>                  ctx->ps_error = NULL;
>              } else if (ctx->cs_error) {
>     @@ -3684,6 +3734,7 @@ static void
>      modem_3gpp_run_registration_checks (MMIfaceModem3gpp *self,
>                                          gboolean cs_supported,
>                                          gboolean ps_supported,
>     +                                    gboolean eps_supported,
>                                          GAsyncReadyCallback callback,
>                                          gpointer user_data)
>      {
>     @@ -3697,8 +3748,10 @@ modem_3gpp_run_registration_checks
>     (MMIfaceModem3gpp *self,
>                                                  
>     modem_3gpp_run_registration_checks);
>          ctx->cs_supported = cs_supported;
>          ctx->ps_supported = ps_supported;
>     +    ctx->eps_supported = eps_supported;
>          ctx->run_cs = cs_supported;
>          ctx->run_ps = ps_supported;
>     +    ctx->run_eps = eps_supported;
> 
>          run_registration_checks_context_step (ctx);
>      }
>     @@ -3712,10 +3765,13 @@ typedef struct {
>          gboolean enable; /* TRUE for enabling, FALSE for disabling */
>          gboolean run_cs;
>          gboolean run_ps;
>     +    gboolean run_eps;
>          gboolean running_cs;
>          gboolean running_ps;
>     +    gboolean running_eps;
>          GError *cs_error;
>          GError *ps_error;
>     +    GError *eps_error;
>          gboolean secondary_sequence;
>          gboolean secondary_done;
>      } UnsolicitedRegistrationEventsContext;
>     @@ -3728,6 +3784,8 @@
>     unsolicited_registration_events_context_complete_and_free
>     (UnsolicitedRegistrati
>              g_error_free (ctx->cs_error);
>          if (ctx->ps_error)
>              g_error_free (ctx->ps_error);
>     +    if (ctx->eps_error)
>     +        g_error_free (ctx->eps_error);
>          g_object_unref (ctx->result);
>          g_object_unref (ctx->self);
>          g_free (ctx);
>     @@ -3738,6 +3796,7 @@ unsolicited_registration_events_context_new
>     (MMBroadbandModem *self,
>                                                   gboolean enable,
>                                                   gboolean cs_supported,
>                                                   gboolean ps_supported,
>     +                                             gboolean eps_supported,
>                                                   GAsyncReadyCallback
>     callback,
>                                                   gpointer user_data)
>      {
>     @@ -3752,6 +3811,7 @@ unsolicited_registration_events_context_new
>     (MMBroadbandModem *self,
>          ctx->enable = FALSE;
>          ctx->run_cs = cs_supported;
>          ctx->run_ps = ps_supported;
>     +    ctx->run_eps = eps_supported;
> 
>          return ctx;
>      }
>     @@ -3811,6 +3871,20 @@ static const MMBaseModemAtCommand
>     ps_unregistration_sequence[] = {
>          { NULL }
>      };
> 
>     +static const MMBaseModemAtCommand eps_registration_sequence[] = {
>     +    /* Enable unsolicited registration notifications in EPS
>     network, with location */
>     +    { "+CEREG=2", 3, FALSE, parse_registration_setup_reply },
>     +    /* Enable unsolicited registration notifications in EPS
>     network, without location */
>     +    { "+CEREG=1", 3, FALSE, parse_registration_setup_reply },
>     +    { NULL }
>     +};
>     +
>     +static const MMBaseModemAtCommand eps_unregistration_sequence[] = {
>     +    /* Disable unsolicited registration notifications in PS network */
>     +    { "+CEREG=0", 3, FALSE, parse_registration_setup_reply },
>     +    { NULL }
>     +};
>     +
>      static void unsolicited_registration_events_context_step
>     (UnsolicitedRegistrationEventsContext *ctx);
> 
>      static void
>     @@ -3823,8 +3897,9 @@ unsolicited_registration_events_sequence_ready
>     (MMBroadbandModem *self,
>          MMAtSerialPort *secondary;
> 
>          /* Only one must be running */
>     -    g_assert (!(ctx->running_ps && ctx->running_cs) &&
>     -              (ctx->running_cs || ctx->running_ps));
>     +    g_assert ((ctx->running_cs ? 1 : 0) +
>     +              (ctx->running_ps ? 1 : 0) +
>     +              (ctx->running_eps ? 1 : 0) == 1);
> 
>          if (ctx->secondary_done) {
>              if (ctx->secondary_sequence)
>     @@ -3841,6 +3916,8 @@ unsolicited_registration_events_sequence_ready
>     (MMBroadbandModem *self,
>                      ctx->cs_error = error;
>                  else if (ctx->running_ps && !ctx->ps_error)
>                      ctx->ps_error = error;
>     +            else if (ctx->running_eps && !ctx->eps_error)
>     +                ctx->eps_error = error;
>                  else
>                      g_error_free (error);
>              } else {
>     @@ -3853,6 +3930,10 @@
>     unsolicited_registration_events_sequence_ready (MMBroadbandModem *self,
>                      g_error_free (ctx->ps_error);
>                      ctx->ps_error = NULL;
>                  }
>     +            else if (ctx->running_eps && ctx->eps_error) {
>     +                g_error_free (ctx->eps_error);
>     +                ctx->eps_error = NULL;
>     +            }
>              }
> 
>              /* Done with primary and secondary, keep on */
>     @@ -3873,13 +3954,17 @@
>     unsolicited_registration_events_sequence_ready (MMBroadbandModem *self,
>              /* Keep errors reported */
>              if (ctx->running_cs)
>                  ctx->cs_error = error;
>     -        else
>     +        else if (ctx->running_ps)
>                  ctx->ps_error = error;
>     +        else
>     +            ctx->eps_error = error;
>              /* Even if primary failed, go on and try to enable in
>     secondary port */
>          }
> 
>          secondary = mm_base_modem_peek_port_secondary (MM_BASE_MODEM
>     (self));
>          if (secondary) {
>     +        const MMBaseModemAtCommand *registration_sequence = NULL;
>     +
>              ctx->secondary_done = TRUE;
> 
>              /* Now use the same registration setup in secondary port,
>     if any */
>     @@ -3899,12 +3984,16 @@
>     unsolicited_registration_events_sequence_ready (MMBroadbandModem *self,
> 
>              /* If primary failed, run the whole sequence in secondary */
>              ctx->secondary_sequence = TRUE;
>     +        if (ctx->running_cs)
>     +            registration_sequence = ctx->enable ?
>     cs_registration_sequence : cs_unregistration_sequence;
>     +        else if (ctx->running_ps)
>     +            registration_sequence = ctx->enable ?
>     ps_registration_sequence : ps_unregistration_sequence;
>     +        else
>     +            registration_sequence = ctx->enable ?
>     eps_registration_sequence : eps_unregistration_sequence;
>              mm_base_modem_at_sequence_full (
>                  MM_BASE_MODEM (self),
>                  secondary,
>     -            (ctx->running_cs ?
>     -             (ctx->enable ? cs_registration_sequence :
>     cs_unregistration_sequence) :
>     -             (ctx->enable ? ps_registration_sequence :
>     ps_unregistration_sequence)),
>     +            registration_sequence,
>                  NULL,  /* response processor context */
>                  NULL,  /* response processor context free */
>                  NULL, /* cancellable */
>     @@ -3922,6 +4011,7 @@ unsolicited_registration_events_context_step
>     (UnsolicitedRegistrationEventsConte
>      {
>          ctx->running_cs = FALSE;
>          ctx->running_ps = FALSE;
>     +    ctx->running_eps = FALSE;
>          ctx->secondary_done = FALSE;
> 
>          if (ctx->run_cs) {
>     @@ -3933,7 +4023,7 @@ unsolicited_registration_events_context_step
>     (UnsolicitedRegistrationEventsConte
>                  cs_registration_sequence,
>                  NULL,  /* response processor context */
>                  NULL,  /* response processor context free */
>     -            NULL, /* cancellable */
>     +            NULL,  /* cancellable */
>                
>      (GAsyncReadyCallback)unsolicited_registration_events_sequence_ready,
>                  ctx);
>              return;
>     @@ -3948,16 +4038,34 @@ unsolicited_registration_events_context_step
>     (UnsolicitedRegistrationEventsConte
>                  ps_registration_sequence,
>                  NULL,  /* response processor context */
>                  NULL,  /* response processor context free */
>     -            NULL, /* cancellable */
>     +            NULL,  /* cancellable */
>     +          
>      (GAsyncReadyCallback)unsolicited_registration_events_sequence_ready,
>     +            ctx);
>     +        return;
>     +    }
>     +
>     +    if (ctx->run_eps) {
>     +        ctx->running_eps = TRUE;
>     +        ctx->run_eps = FALSE;
>     +        mm_base_modem_at_sequence_full (
>     +            MM_BASE_MODEM (ctx->self),
>     +            mm_base_modem_peek_port_primary (MM_BASE_MODEM
>     (ctx->self)),
>     +            eps_registration_sequence,
>     +            NULL,  /* response processor context */
>     +            NULL,  /* response processor context free */
>     +            NULL,  /* cancellable */
>                
>      (GAsyncReadyCallback)unsolicited_registration_events_sequence_ready,
>                  ctx);
>              return;
>          }
> 
>          /* All done!
>     -     * If we have any error reported, we'll propagate it. PS errors
>     take
>     -     * precendence over CS errors. */
>     -    if (ctx->ps_error) {
>     +     * If we have any error reported, we'll propagate it. EPS
>     errors take
>     +     * precendence over PS errors and PS errors take precendence
>     over CS errors. */
>     +    if (ctx->eps_error) {
>     +        g_simple_async_result_take_error (ctx->result, ctx->eps_error);
>     +        ctx->ps_error = NULL;
>     +    } else if (ctx->ps_error) {
>              g_simple_async_result_take_error (ctx->result, ctx->ps_error);
>              ctx->ps_error = NULL;
>          } else if (ctx->cs_error) {
>     @@ -3972,6 +4080,7 @@ static void
>      modem_3gpp_disable_unsolicited_registration_events
>     (MMIfaceModem3gpp *self,
>                                                          gboolean
>     cs_supported,
>                                                          gboolean
>     ps_supported,
>     +                                                    gboolean
>     eps_supported,
>                                                        
>      GAsyncReadyCallback callback,
>                                                          gpointer user_data)
>      {
>     @@ -3980,6 +4089,7 @@
>     modem_3gpp_disable_unsolicited_registration_events (MMIfaceModem3gpp
>     *self,
>                                                           FALSE,
>                                                           cs_supported,
>                                                           ps_supported,
>     +                                                     eps_supported,
>                                                           callback,
>                                                           user_data));
>      }
>     @@ -3988,6 +4098,7 @@ static void
>      modem_3gpp_enable_unsolicited_registration_events (MMIfaceModem3gpp
>     *self,
>                                                         gboolean
>     cs_supported,
>                                                         gboolean
>     ps_supported,
>     +                                                   gboolean
>     eps_supported,
>                                                        
>     GAsyncReadyCallback callback,
>                                                         gpointer user_data)
>      {
>     @@ -3996,6 +4107,7 @@
>     modem_3gpp_enable_unsolicited_registration_events (MMIfaceModem3gpp
>     *self,
>                                                           TRUE,
>                                                           cs_supported,
>                                                           ps_supported,
>     +                                                     eps_supported,
>                                                           callback,
>                                                           user_data));
>      }
>     @@ -8735,6 +8847,9 @@ set_property (GObject *object,
>          case PROP_MODEM_3GPP_PS_NETWORK_SUPPORTED:
>              self->priv->modem_3gpp_ps_network_supported =
>     g_value_get_boolean (value);
>              break;
>     +    case PROP_MODEM_3GPP_EPS_NETWORK_SUPPORTED:
>     +        self->priv->modem_3gpp_eps_network_supported =
>     g_value_get_boolean (value);
>     +        break;
>          case PROP_MODEM_CDMA_CDMA1X_REGISTRATION_STATE:
>              self->priv->modem_cdma_cdma1x_registration_state =
>     g_value_get_enum (value);
>              break;
>     @@ -8821,6 +8936,9 @@ get_property (GObject *object,
>          case PROP_MODEM_3GPP_PS_NETWORK_SUPPORTED:
>              g_value_set_boolean (value,
>     self->priv->modem_3gpp_ps_network_supported);
>              break;
>     +    case PROP_MODEM_3GPP_EPS_NETWORK_SUPPORTED:
>     +        g_value_set_boolean (value,
>     self->priv->modem_3gpp_eps_network_supported);
>     +        break;
>          case PROP_MODEM_CDMA_CDMA1X_REGISTRATION_STATE:
>              g_value_set_enum (value,
>     self->priv->modem_cdma_cdma1x_registration_state);
>              break;
>     @@ -8864,6 +8982,7 @@ mm_broadband_modem_init (MMBroadbandModem *self)
>          self->priv->modem_3gpp_registration_state =
>     MM_MODEM_3GPP_REGISTRATION_STATE_UNKNOWN;
>          self->priv->modem_3gpp_cs_network_supported = TRUE;
>          self->priv->modem_3gpp_ps_network_supported = TRUE;
>     +    self->priv->modem_3gpp_eps_network_supported = FALSE;
>          self->priv->modem_cdma_cdma1x_registration_state =
>     MM_MODEM_CDMA_REGISTRATION_STATE_UNKNOWN;
>          self->priv->modem_cdma_evdo_registration_state =
>     MM_MODEM_CDMA_REGISTRATION_STATE_UNKNOWN;
>          self->priv->modem_cdma_cdma1x_network_supported = TRUE;
>     @@ -9223,6 +9342,10 @@ mm_broadband_modem_class_init
>     (MMBroadbandModemClass *klass)
>                                          
>      MM_IFACE_MODEM_3GPP_PS_NETWORK_SUPPORTED);
> 
>          g_object_class_override_property (object_class,
>     +                                    
>      PROP_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>     +                                    
>      MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED);
>     +
>     +    g_object_class_override_property (object_class,
>                                          
>      PROP_MODEM_CDMA_CDMA1X_REGISTRATION_STATE,
>                                          
>      MM_IFACE_MODEM_CDMA_CDMA1X_REGISTRATION_STATE);
> 
>     diff --git a/src/mm-iface-modem-3gpp.c b/src/mm-iface-modem-3gpp.c
>     index 7a88b2f..7117e9c 100644
>     --- a/src/mm-iface-modem-3gpp.c
>     +++ b/src/mm-iface-modem-3gpp.c
>     @@ -72,6 +72,7 @@ mm_iface_modem_3gpp_bind_simple_status
>     (MMIfaceModem3gpp *self,
>      typedef struct {
>          MMModem3gppRegistrationState cs;
>          MMModem3gppRegistrationState ps;
>     +    MMModem3gppRegistrationState eps;
>          gboolean manual_registration;
>          GCancellable *pending_registration_cancellable;
>          gboolean reloading_operator;
>     @@ -102,6 +103,7 @@ get_registration_state_context (MMIfaceModem3gpp
>     *self)
>              ctx = g_slice_new0 (RegistrationStateContext);
>              ctx->cs = MM_MODEM_3GPP_REGISTRATION_STATE_UNKNOWN;
>              ctx->ps = MM_MODEM_3GPP_REGISTRATION_STATE_UNKNOWN;
>     +        ctx->eps = MM_MODEM_3GPP_REGISTRATION_STATE_UNKNOWN;
> 
>              g_object_set_qdata_full (
>                  G_OBJECT (self),
>     @@ -129,12 +131,19 @@ get_consolidated_reg_state
>     (RegistrationStateContext *ctx)
>              ctx->ps == MM_MODEM_3GPP_REGISTRATION_STATE_ROAMING)
>              return ctx->ps;
> 
>     +    if (ctx->eps == MM_MODEM_3GPP_REGISTRATION_STATE_HOME ||
>     +        ctx->eps == MM_MODEM_3GPP_REGISTRATION_STATE_ROAMING)
>     +        return ctx->eps;
>     +
>          if (ctx->cs == MM_MODEM_3GPP_REGISTRATION_STATE_SEARCHING)
>              return ctx->cs;
> 
>          if (ctx->ps == MM_MODEM_3GPP_REGISTRATION_STATE_SEARCHING)
>              return ctx->ps;
> 
>     +    if (ctx->eps == MM_MODEM_3GPP_REGISTRATION_STATE_SEARCHING)
>     +        return ctx->eps;
>     +
>          return ctx->cs;
>      }
> 
>     @@ -183,6 +192,7 @@ register_in_network_context_failed
>     (RegisterInNetworkContext *ctx,
>      {
>          mm_iface_modem_3gpp_update_cs_registration_state (ctx->self,
>     MM_MODEM_3GPP_REGISTRATION_STATE_IDLE);
>          mm_iface_modem_3gpp_update_ps_registration_state (ctx->self,
>     MM_MODEM_3GPP_REGISTRATION_STATE_IDLE);
>     +    mm_iface_modem_3gpp_update_eps_registration_state (ctx->self,
>     MM_MODEM_3GPP_REGISTRATION_STATE_IDLE);
>          mm_iface_modem_3gpp_update_access_technologies (ctx->self,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN);
>          mm_iface_modem_3gpp_update_location (ctx->self, 0, 0);
> 
>     @@ -719,21 +729,25 @@ mm_iface_modem_3gpp_run_registration_checks
>     (MMIfaceModem3gpp *self,
>      {
>          gboolean cs_supported = FALSE;
>          gboolean ps_supported = FALSE;
>     +    gboolean eps_supported = FALSE;
> 
>          g_assert (MM_IFACE_MODEM_3GPP_GET_INTERFACE
>     (self)->run_registration_checks != NULL);
> 
>          g_object_get (self,
>                        MM_IFACE_MODEM_3GPP_CS_NETWORK_SUPPORTED,
>     &cs_supported,
>                        MM_IFACE_MODEM_3GPP_PS_NETWORK_SUPPORTED,
>     &ps_supported,
>     +                  MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>     &eps_supported,
>                        NULL);
> 
>     -    mm_dbg ("Running registration checks (CS: '%s', PS: '%s')",
>     +    mm_dbg ("Running registration checks (CS: '%s', PS: '%s', EPS:
>     '%s')",
>                  cs_supported ? "yes" : "no",
>     -            ps_supported ? "yes" : "no");
>     +            ps_supported ? "yes" : "no",
>     +            eps_supported ? "yes" : "no");
> 
>          MM_IFACE_MODEM_3GPP_GET_INTERFACE
>     (self)->run_registration_checks (self,
>                                                                        
>         cs_supported,
>                                                                        
>         ps_supported,
>     +                                                                  
>         eps_supported,
>                                                                        
>         callback,
>                                                                        
>         user_data);
>      }
>     @@ -1117,6 +1131,25 @@
>     mm_iface_modem_3gpp_update_ps_registration_state (MMIfaceModem3gpp
>     *self,
>          update_registration_state (self, get_consolidated_reg_state (ctx));
>      }
> 
>     +void
>     +mm_iface_modem_3gpp_update_eps_registration_state (MMIfaceModem3gpp
>     *self,
>     +                                                  
>     MMModem3gppRegistrationState state)
>     +{
>     +    RegistrationStateContext *ctx;
>     +    gboolean supported = FALSE;
>     +
>     +    g_object_get (self,
>     +                  MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>     &supported,
>     +                  NULL);
>     +
>     +    if (!supported)
>     +        return;
>     +
>     +    ctx = get_registration_state_context (self);
>     +    ctx->eps = state;
>     +    update_registration_state (self, get_consolidated_reg_state (ctx));
>     +}
>     +
>      /*****************************************************************************/
> 
>      typedef struct {
>     @@ -1297,10 +1330,12 @@ interface_disabling_step (DisablingContext *ctx)
>          case DISABLING_STEP_DISABLE_UNSOLICITED_REGISTRATION_EVENTS: {
>              gboolean cs_supported = FALSE;
>              gboolean ps_supported = FALSE;
>     +        gboolean eps_supported = FALSE;
> 
>              g_object_get (ctx->self,
>                            MM_IFACE_MODEM_3GPP_CS_NETWORK_SUPPORTED,
>     &cs_supported,
>                            MM_IFACE_MODEM_3GPP_PS_NETWORK_SUPPORTED,
>     &ps_supported,
>     +                      MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>     &eps_supported,
>                            NULL);
> 
>              if (MM_IFACE_MODEM_3GPP_GET_INTERFACE
>     (ctx->self)->disable_unsolicited_registration_events &&
>     @@ -1309,6 +1344,7 @@ interface_disabling_step (DisablingContext *ctx)
>                      ctx->self,
>                      cs_supported,
>                      ps_supported,
>     +                eps_supported,
>                    
>      (GAsyncReadyCallback)disable_unsolicited_registration_events_ready,
>                      ctx);
>                  return;
>     @@ -1618,10 +1654,12 @@ interface_enabling_step (EnablingContext *ctx)
>          case ENABLING_STEP_ENABLE_UNSOLICITED_REGISTRATION_EVENTS: {
>              gboolean cs_supported = FALSE;
>              gboolean ps_supported = FALSE;
>     +        gboolean eps_supported = FALSE;
> 
>              g_object_get (ctx->self,
>                            MM_IFACE_MODEM_3GPP_CS_NETWORK_SUPPORTED,
>     &cs_supported,
>                            MM_IFACE_MODEM_3GPP_PS_NETWORK_SUPPORTED,
>     &ps_supported,
>     +                      MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>     &eps_supported,
>                            NULL);
> 
>              if (MM_IFACE_MODEM_3GPP_GET_INTERFACE
>     (ctx->self)->enable_unsolicited_registration_events &&
>     @@ -1630,6 +1668,7 @@ interface_enabling_step (EnablingContext *ctx)
>                      ctx->self,
>                      cs_supported,
>                      ps_supported,
>     +                eps_supported,
>                    
>      (GAsyncReadyCallback)enable_unsolicited_registration_events_ready,
>                      ctx);
>                  return;
>     @@ -1996,6 +2035,14 @@ iface_modem_3gpp_init (gpointer g_iface)
>                                     TRUE,
>                                     G_PARAM_READWRITE));
> 
>     +    g_object_interface_install_property
>     +        (g_iface,
>     +         g_param_spec_boolean
>     (MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED,
>     +                               "EPS network supported",
>     +                               "Whether the modem works in the EPS
>     network",
>     +                               FALSE,
>     +                               G_PARAM_READWRITE));
>     +
>          initialized = TRUE;
>      }
> 
>     diff --git a/src/mm-iface-modem-3gpp.h b/src/mm-iface-modem-3gpp.h
>     index d706f1a..caf2575 100644
>     --- a/src/mm-iface-modem-3gpp.h
>     +++ b/src/mm-iface-modem-3gpp.h
>     @@ -30,8 +30,9 @@
> 
>      #define MM_IFACE_MODEM_3GPP_DBUS_SKELETON      
>      "iface-modem-3gpp-dbus-skeleton"
>      #define MM_IFACE_MODEM_3GPP_REGISTRATION_STATE  
>     "iface-modem-3gpp-registration-state"
>     -#define MM_IFACE_MODEM_3GPP_PS_NETWORK_SUPPORTED
>     "iface-modem-3gpp-ps-network-supported"
>      #define MM_IFACE_MODEM_3GPP_CS_NETWORK_SUPPORTED
>     "iface-modem-3gpp-cs-network-supported"
>     +#define MM_IFACE_MODEM_3GPP_PS_NETWORK_SUPPORTED
>     "iface-modem-3gpp-ps-network-supported"
>     +#define MM_IFACE_MODEM_3GPP_EPS_NETWORK_SUPPORTED
>     "iface-modem-3gpp-eps-network-supported"
> 
>      #define MM_IFACE_MODEM_3GPP_ALL_ACCESS_TECHNOLOGIES_MASK    \
>          (MM_MODEM_ACCESS_TECHNOLOGY_GSM |                       \
>     @@ -110,6 +111,7 @@ struct _MMIfaceModem3gpp {
>          void (*enable_unsolicited_registration_events)
>     (MMIfaceModem3gpp *self,
>                                                          gboolean
>     cs_supported,
>                                                          gboolean
>     ps_supported,
>     +                                                    gboolean
>     eps_supported,
>                                                        
>      GAsyncReadyCallback callback,
>                                                          gpointer
>     user_data);
>          gboolean (*enable_unsolicited_registration_events_finish)
>     (MMIfaceModem3gpp *self,
>     @@ -127,18 +129,20 @@ struct _MMIfaceModem3gpp {
>          void (*disable_unsolicited_registration_events)
>     (MMIfaceModem3gpp *self,
>                                                           gboolean
>     cs_supported,
>                                                           gboolean
>     ps_supported,
>     +                                                     gboolean
>     eps_supported,
>                                                          
>     GAsyncReadyCallback callback,
>                                                           gpointer
>     user_data);
>          gboolean (*disable_unsolicited_registration_events_finish)
>     (MMIfaceModem3gpp *self,
>                                                                    
>      GAsyncResult *res,
>                                                                    
>      GError **error);
> 
>     -    /* Run CS/PS registration state checks..
>     +    /* Run CS/PS/EPS registration state checks..
>           * Note that no registration state is returned, implementations
>     should call
>           * mm_iface_modem_3gpp_update_registration_state(). */
>          void (* run_registration_checks) (MMIfaceModem3gpp *self,
>                                            gboolean cs_supported,
>                                            gboolean ps_supported,
>     +                                      gboolean eps_supported,
>                                            GAsyncReadyCallback callback,
>                                            gpointer user_data);
>          gboolean (*run_registration_checks_finish) (MMIfaceModem3gpp *self,
>     @@ -219,6 +223,8 @@ void
>     mm_iface_modem_3gpp_update_cs_registration_state (MMIfaceModem3gpp
>     *self,
>                                                            
>     MMModem3gppRegistrationState state);
>      void mm_iface_modem_3gpp_update_ps_registration_state
>     (MMIfaceModem3gpp *self,
>                                                            
>     MMModem3gppRegistrationState state);
>     +void mm_iface_modem_3gpp_update_eps_registration_state
>     (MMIfaceModem3gpp *self,
>     +                                                      
>      MMModem3gppRegistrationState state);
>      void mm_iface_modem_3gpp_update_access_technologies
>     (MMIfaceModem3gpp *self,
>                                                          
>     MMModemAccessTechnology access_tech);
>      void mm_iface_modem_3gpp_update_location          
>      (MMIfaceModem3gpp *self,
>     diff --git a/src/mm-modem-helpers.c b/src/mm-modem-helpers.c
>     index e8c8f88..cedd2b7 100644
>     --- a/src/mm-modem-helpers.c
>     +++ b/src/mm-modem-helpers.c
>     @@ -216,22 +216,22 @@ mm_filter_current_bands (const GArray
>     *supported_bands,
>      /*****************************************************************************/
> 
>      /* +CREG: <stat>                      (GSM 07.07 CREG=1 unsolicited) */
>     -#define CREG1 "\\+(CREG|CGREG):\\s*0*([0-9])"
>     +#define CREG1 "\\+(CREG|CGREG|CEREG):\\s*0*([0-9])"
> 
>      /* +CREG: <n>,<stat>                  (GSM 07.07 CREG=1 solicited) */
>     -#define CREG2 "\\+(CREG|CGREG):\\s*0*([0-9]),\\s*0*([0-9])"
>     +#define CREG2 "\\+(CREG|CGREG|CEREG):\\s*0*([0-9]),\\s*0*([0-9])"
> 
>      /* +CREG: <stat>,<lac>,<ci>           (GSM 07.07 CREG=2 unsolicited) */
>     -#define CREG3
>     "\\+(CREG|CGREG):\\s*0*([0-9]),\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)"
>     +#define CREG3
>     "\\+(CREG|CGREG|CEREG):\\s*0*([0-9]),\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)"
> 
>      /* +CREG: <n>,<stat>,<lac>,<ci>       (GSM 07.07 solicited and some
>     CREG=2 unsolicited) */
>     -#define CREG4
>     "\\+(CREG|CGREG):\\s*0*([0-9]),\\s*0*([0-9])\\s*,\\s*([^,]*)\\s*,\\s*([^,\\s]*)"
>     +#define CREG4
>     "\\+(CREG|CGREG|CEREG):\\s*0*([0-9]),\\s*0*([0-9])\\s*,\\s*([^,]*)\\s*,\\s*([^,\\s]*)"
> 
>      /* +CREG: <stat>,<lac>,<ci>,<AcT>     (ETSI 27.007 CREG=2
>     unsolicited) */
>     -#define CREG5
>     "\\+(CREG|CGREG):\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])"
>     +#define CREG5
>     "\\+(CREG|CGREG|CEREG):\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])"
> 
>      /* +CREG: <n>,<stat>,<lac>,<ci>,<AcT> (ETSI 27.007 solicited and
>     some CREG=2 unsolicited) */
>     -#define CREG6
>     "\\+(CREG|CGREG):\\s*0*([0-9]),\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])"
>     +#define CREG6
>     "\\+(CREG|CGREG|CEREG):\\s*0*([0-9]),\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])"
> 
>      /* +CREG: <n>,<stat>,<lac>,<ci>,<AcT?>,<something> (Samsung Wave
>     S8500) */
>      /* '<CR><LF>+CREG: 2,1,000B,2816, B,
>     C2816<CR><LF><CR><LF>OK<CR><LF>' */
>     @@ -240,10 +240,16 @@ mm_filter_current_bands (const GArray
>     *supported_bands,
>      /* +CREG: <stat>,<lac>,<ci>,<AcT>,<RAC> (ETSI 27.007 v9.20 CREG=2
>     unsolicited with RAC) */
>      #define CREG8
>     "\\+(CREG|CGREG):\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])\\s*,\\s*([^,\\s]*)"
> 
>     +/* +CEREG: <stat>,<lac>,<rac>,<ci>,<AcT>     (ETSI 27.007 v8.6
>     CREG=2 unsolicited with RAC) */
>     +#define CEREG1
>     "\\+(CEREG):\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])"
>     +
>     +/* +CEREG: <n>,<stat>,<lac>,<rac>,<ci>,<AcT> (ETSI 27.007 v8.6
>     CREG=2 solicited with RAC) */
>     +#define CEREG2
>     "\\+(CEREG):\\s*0*([0-9]),\\s*0*([0-9])\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*([^,\\s]*)\\s*,\\s*0*([0-9])"
>     +
>      GPtrArray *
>      mm_3gpp_creg_regex_get (gboolean solicited)
>      {
>     -    GPtrArray *array = g_ptr_array_sized_new (7);
>     +    GPtrArray *array = g_ptr_array_sized_new (10);
>          GRegex *regex;
> 
>          /* #1 */
>     @@ -310,6 +316,22 @@ mm_3gpp_creg_regex_get (gboolean solicited)
>          g_assert (regex);
>          g_ptr_array_add (array, regex);
> 
>     +    /* CEREG #1 */
>     +    if (solicited)
>     +        regex = g_regex_new (CEREG1 "$", G_REGEX_RAW |
>     G_REGEX_OPTIMIZE, 0, NULL);
>     +    else
>     +        regex = g_regex_new ("\\r\\n" CEREG1 "\\r\\n", G_REGEX_RAW
>     | G_REGEX_OPTIMIZE, 0, NULL);
>     +    g_assert (regex);
>     +    g_ptr_array_add (array, regex);
>     +
>     +    /* CEREG #2 */
>     +    if (solicited)
>     +        regex = g_regex_new (CEREG2 "$", G_REGEX_RAW |
>     G_REGEX_OPTIMIZE, 0, NULL);
>     +    else
>     +        regex = g_regex_new ("\\r\\n" CEREG2 "\\r\\n", G_REGEX_RAW
>     | G_REGEX_OPTIMIZE, 0, NULL);
>     +    g_assert (regex);
>     +    g_ptr_array_add (array, regex);
>     +
>          return array;
>      }
> 
>     @@ -723,6 +745,7 @@ mm_3gpp_parse_creg_response (GMatchInfo *info,
>                                   gulong *out_ci,
>                                   MMModemAccessTechnology *out_act,
>                                   gboolean *out_cgreg,
>     +                             gboolean *out_cereg,
>                                   GError **error)
>      {
>          gboolean success = FALSE, foo;
>     @@ -737,10 +760,11 @@ mm_3gpp_parse_creg_response (GMatchInfo *info,
>          g_return_val_if_fail (out_ci != NULL, FALSE);
>          g_return_val_if_fail (out_act != NULL, FALSE);
>          g_return_val_if_fail (out_cgreg != NULL, FALSE);
>     +    g_return_val_if_fail (out_cereg != NULL, FALSE);
> 
>          str = g_match_info_fetch (info, 1);
>     -    if (str && strstr (str, "CGREG"))
>     -        *out_cgreg = TRUE;
>     +    *out_cgreg = (str && strstr (str, "CGREG")) ? TRUE : FALSE;
>     +    *out_cereg = (str && strstr (str, "CEREG")) ? TRUE : FALSE;
>          g_free (str);
> 
>          /* Normally the number of matches could be used to determine
>     what each
>     @@ -777,19 +801,43 @@ mm_3gpp_parse_creg_response (GMatchInfo *info,
>          } else if (n_matches == 7) {
>              /* CREG=2 (solicited):            +CREG:
>     <n>,<stat>,<lac>,<ci>,<AcT>
>               * CREG=2 (unsolicited with RAC): +CREG:
>     <stat>,<lac>,<ci>,<AcT>,<RAC>
>     +         * CEREG=2 (solicited):           +CEREG:
>     <n>,<stat>,<lac>,<ci>,<AcT>
>     +         * CEREG=2 (unsolicited with RAC): +CEREG:
>     <stat>,<lac>,<rac>,<ci>,<AcT>
>               */
> 
>     -        /* Check if the third item is the LAC to distinguish the
>     two cases */
>     -        if (item_is_lac_not_stat (info, 3)) {
>     -            istat = 2;
>     -            ilac = 3;
>     -            ici = 4;
>     -            iact = 5;
>     +        if (*out_cereg) {
>     +            /* Check if the third item is the LAC to distinguish
>     the two cases */
>     +            if (item_is_lac_not_stat (info, 3)) {
>     +                istat = 2;
>     +                ilac = 3;
>     +            } else {
>     +                istat = 3;
>     +                ilac = 4;
>     +            }
>     +            ici = 5;
>     +            iact = 6;
>              } else {
>     +            /* Check if the third item is the LAC to distinguish
>     the two cases */
>     +            if (item_is_lac_not_stat (info, 3)) {
>     +                istat = 2;
>     +                ilac = 3;
>     +                ici = 4;
>     +                iact = 5;
>     +            } else {
>     +                istat = 3;
>     +                ilac = 4;
>     +                ici = 5;
>     +                iact = 6;
>     +            }
>     +        }
>     +    } else if (n_matches == 8) {
>     +        /* CEREG=2 (solicited with RAC):  +CEREG:
>     <n>,<stat>,<lac>,<rac>,<ci>,<AcT>
>     +         */
>     +        if (*out_cereg) {
>                  istat = 3;
>                  ilac = 4;
>     -            ici = 5;
>     -            iact = 6;
>     +            ici = 6;
>     +            iact = 7;
>              }
>           }
> 
>     diff --git a/src/mm-modem-helpers.h b/src/mm-modem-helpers.h
>     index e66f259..63e53a7 100644
>     --- a/src/mm-modem-helpers.h
>     +++ b/src/mm-modem-helpers.h
>     @@ -106,6 +106,7 @@ gboolean mm_3gpp_parse_creg_response (GMatchInfo
>     *info,
>                                            gulong *out_ci,
>                                            MMModemAccessTechnology *out_act,
>                                            gboolean *out_cgreg,
>     +                                      gboolean *out_cereg,
>                                            GError **error);
> 
>      /* AT+CMGF=? (SMS message format) response parser */
>     diff --git a/src/tests/test-modem-helpers.c
>     b/src/tests/test-modem-helpers.c
>     index fdd336c..6cfac3d 100644
>     --- a/src/tests/test-modem-helpers.c
>     +++ b/src/tests/test-modem-helpers.c
>     @@ -473,6 +473,7 @@ typedef struct {
> 
>          guint regex_num;
>          gboolean cgreg;
>     +    gboolean cereg;
>      } CregResult;
> 
>      static void
>     @@ -488,7 +489,7 @@ test_creg_match (const char *test,
>          MMModemAccessTechnology access_tech =
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN;
>          gulong lac = 0, ci = 0;
>          GError *error = NULL;
>     -    gboolean success, cgreg = FALSE;
>     +    gboolean success, cgreg = FALSE, cereg = FALSE;
>          guint regex_num = 0;
>          GPtrArray *array;
> 
>     @@ -522,7 +523,7 @@ test_creg_match (const char *test,
>          g_assert (info != NULL);
>          g_assert_cmpuint (regex_num, ==, result->regex_num);
> 
>     -    success = mm_3gpp_parse_creg_response (info, &state, &lac, &ci,
>     &access_tech, &cgreg, &error);
>     +    success = mm_3gpp_parse_creg_response (info, &state, &lac, &ci,
>     &access_tech, &cgreg, &cereg, &error);
>          g_assert (success);
>          g_assert_no_error (error);
>          g_assert_cmpuint (state, ==, result->state);
>     @@ -533,6 +534,7 @@ test_creg_match (const char *test,
>                   access_tech, result->act);
>          g_assert_cmpuint (access_tech, ==, result->act);
>          g_assert_cmpuint (cgreg, ==, result->cgreg);
>     +    g_assert_cmpuint (cereg, ==, result->cereg);
>      }
> 
>      static void
>     @@ -540,7 +542,7 @@ test_creg1_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG: 1,3";
>     -    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 2, FALSE};
>     +    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 2, FALSE, FALSE };
> 
>          test_creg_match ("CREG=1", TRUE, reply, data, &result);
>      }
>     @@ -550,7 +552,7 @@ test_creg1_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 3\r\n";
>     -    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 1, FALSE};
>     +    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 1, FALSE, FALSE };
> 
>          test_creg_match ("CREG=1", FALSE, reply, data, &result);
>      }
>     @@ -560,7 +562,7 @@ test_creg2_mercury_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG: 0,1,84CD,00D30173";
>     -    const CregResult result = { 1, 0x84cd, 0xd30173,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE};
>     +    const CregResult result = { 1, 0x84cd, 0xd30173,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE, FALSE };
> 
>          test_creg_match ("Sierra Mercury CREG=2", TRUE, reply, data,
>     &result);
>      }
>     @@ -570,7 +572,7 @@ test_creg2_mercury_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 1,84CD,00D30156\r\n";
>     -    const CregResult result = { 1, 0x84cd, 0xd30156,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE};
>     +    const CregResult result = { 1, 0x84cd, 0xd30156,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE, FALSE };
> 
>          test_creg_match ("Sierra Mercury CREG=2", FALSE, reply, data,
>     &result);
>      }
>     @@ -580,7 +582,7 @@ test_creg2_sek850i_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG: 2,1,\"CE00\",\"01CEAD8F\"";
>     -    const CregResult result = { 1, 0xce00, 0x01cead8f,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE};
>     +    const CregResult result = { 1, 0xce00, 0x01cead8f,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE, FALSE };
> 
>          test_creg_match ("Sony Ericsson K850i CREG=2", TRUE, reply,
>     data, &result);
>      }
>     @@ -590,7 +592,7 @@ test_creg2_sek850i_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 1,\"CE00\",\"00005449\"\r\n";
>     -    const CregResult result = { 1, 0xce00, 0x5449,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE};
>     +    const CregResult result = { 1, 0xce00, 0x5449,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE, FALSE };
> 
>          test_creg_match ("Sony Ericsson K850i CREG=2", FALSE, reply,
>     data, &result);
>      }
>     @@ -600,7 +602,7 @@ test_creg2_e160g_solicited_unregistered (void
>     *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG: 2,0,00,0";
>     -    const CregResult result = { 0, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE};
>     +    const CregResult result = { 0, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE, FALSE };
> 
>          test_creg_match ("Huawei E160G unregistered CREG=2", TRUE,
>     reply, data, &result);
>      }
>     @@ -610,7 +612,7 @@ test_creg2_e160g_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG: 2,1,8BE3,2BAF";
>     -    const CregResult result = { 1, 0x8be3, 0x2baf,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE};
>     +    const CregResult result = { 1, 0x8be3, 0x2baf,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE, FALSE };
> 
>          test_creg_match ("Huawei E160G CREG=2", TRUE, reply, data,
>     &result);
>      }
>     @@ -620,7 +622,7 @@ test_creg2_e160g_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 2,8BE3,2BAF\r\n";
>     -    const CregResult result = { 2, 0x8be3, 0x2baf,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE};
>     +    const CregResult result = { 2, 0x8be3, 0x2baf,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE, FALSE };
> 
>          test_creg_match ("Huawei E160G CREG=2", FALSE, reply, data,
>     &result);
>      }
>     @@ -630,7 +632,7 @@ test_creg2_tm506_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG: 2,1,\"8BE3\",\"00002BAF\"";
>     -    const CregResult result = { 1, 0x8BE3, 0x2BAF,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE};
>     +    const CregResult result = { 1, 0x8BE3, 0x2BAF,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE, FALSE };
> 
>          /* Test leading zeros in the CI */
>          test_creg_match ("Sony Ericsson TM-506 CREG=2", TRUE, reply,
>     data, &result);
>     @@ -641,7 +643,7 @@ test_creg2_xu870_unsolicited_unregistered (void
>     *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 2,,\r\n";
>     -    const CregResult result = { 2, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE};
>     +    const CregResult result = { 2, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 3, FALSE, FALSE };
> 
>          test_creg_match ("Novatel XU870 unregistered CREG=2", FALSE,
>     reply, data, &result);
>      }
>     @@ -651,7 +653,7 @@ test_creg2_iridium_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CREG:002,001,\"18d8\",\"ffff\"";
>     -    const CregResult result = { 1, 0x18D8, 0xFFFF,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 4, FALSE};
>     +    const CregResult result = { 1, 0x18D8, 0xFFFF,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 4, FALSE, FALSE };
> 
>          test_creg_match ("Iridium, CREG=2", TRUE, reply, data, &result);
>      }
>     @@ -661,7 +663,7 @@ test_cgreg1_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CGREG: 1,3";
>     -    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 2, TRUE};
>     +    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 2, TRUE, FALSE };
> 
>          test_creg_match ("CGREG=1", TRUE, reply, data, &result);
>      }
>     @@ -671,7 +673,7 @@ test_cgreg1_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CGREG: 3\r\n";
>     -    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 1, TRUE};
>     +    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 1, TRUE, FALSE };
> 
>          test_creg_match ("CGREG=1", FALSE, reply, data, &result);
>      }
>     @@ -681,7 +683,7 @@ test_cgreg2_f3607gw_solicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "+CGREG: 2,1,\"8BE3\",\"00002B5D\",3";
>     -    const CregResult result = { 1, 0x8BE3, 0x2B5D,
>     MM_MODEM_ACCESS_TECHNOLOGY_EDGE , 6, TRUE};
>     +    const CregResult result = { 1, 0x8BE3, 0x2B5D,
>     MM_MODEM_ACCESS_TECHNOLOGY_EDGE , 6, TRUE, FALSE };
> 
>          test_creg_match ("Ericsson F3607gw CGREG=2", TRUE, reply, data,
>     &result);
>      }
>     @@ -691,7 +693,7 @@ test_cgreg2_f3607gw_unsolicited (void *f,
>     gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CGREG: 1,\"8BE3\",\"00002B5D\",3\r\n";
>     -    const CregResult result = { 1, 0x8BE3, 0x2B5D,
>     MM_MODEM_ACCESS_TECHNOLOGY_EDGE , 5, TRUE};
>     +    const CregResult result = { 1, 0x8BE3, 0x2B5D,
>     MM_MODEM_ACCESS_TECHNOLOGY_EDGE , 5, TRUE, FALSE };
> 
>          test_creg_match ("Ericsson F3607gw CGREG=2", FALSE, reply,
>     data, &result);
>      }
>     @@ -701,7 +703,7 @@ test_creg2_md400_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 2,5,\"0502\",\"0404736D\"\r\n";
>     -    const CregResult result = { 5, 0x0502, 0x0404736D,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE};
>     +    const CregResult result = { 5, 0x0502, 0x0404736D,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 4, FALSE, FALSE };
> 
>          test_creg_match ("Sony-Ericsson MD400 CREG=2", FALSE, reply,
>     data, &result);
>      }
>     @@ -711,7 +713,7 @@ test_cgreg2_md400_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CGREG: 5,\"0502\",\"0404736D\",2\r\n";
>     -    const CregResult result = { 5, 0x0502, 0x0404736D,
>     MM_MODEM_ACCESS_TECHNOLOGY_UMTS, 5, TRUE};
>     +    const CregResult result = { 5, 0x0502, 0x0404736D,
>     MM_MODEM_ACCESS_TECHNOLOGY_UMTS, 5, TRUE, FALSE };
> 
>          test_creg_match ("Sony-Ericsson MD400 CGREG=2", FALSE, reply,
>     data, &result);
>      }
>     @@ -721,7 +723,7 @@ test_creg_cgreg_multi_unsolicited (void *f,
>     gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 5\r\n\r\n+CGREG: 0\r\n";
>     -    const CregResult result = { 5, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 1, FALSE};
>     +    const CregResult result = { 5, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 1, FALSE, FALSE };
> 
>          test_creg_match ("Multi CREG/CGREG", FALSE, reply, data, &result);
>      }
>     @@ -731,7 +733,7 @@ test_creg_cgreg_multi2_unsolicited (void *f,
>     gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CGREG: 0\r\n\r\n+CREG: 5\r\n";
>     -    const CregResult result = { 0, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 1, TRUE};
>     +    const CregResult result = { 0, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 1, TRUE, FALSE };
> 
>          test_creg_match ("Multi CREG/CGREG #2", FALSE, reply, data,
>     &result);
>      }
>     @@ -741,7 +743,7 @@ test_cgreg2_x220_unsolicited (void *f, gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CGREG: 2,1, 81ED, 1A9CEB\r\n";
>     -    const CregResult result = { 1, 0x81ED, 0x1A9CEB,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 4, TRUE};
>     +    const CregResult result = { 1, 0x81ED, 0x1A9CEB,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 4, TRUE, FALSE };
> 
>          /* Tests random spaces in response */
>          test_creg_match ("Alcatel One-Touch X220D CGREG=2", FALSE,
>     reply, data, &result);
>     @@ -752,7 +754,7 @@ test_creg2_s8500_wave_unsolicited (void *f,
>     gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 2,1,000B,2816, B, C2816\r\n";
>     -    const CregResult result = { 1, 0x000B, 0x2816,
>     MM_MODEM_ACCESS_TECHNOLOGY_GSM, 7, FALSE};
>     +    const CregResult result = { 1, 0x000B, 0x2816,
>     MM_MODEM_ACCESS_TECHNOLOGY_GSM, 7, FALSE, FALSE };
> 
>          test_creg_match ("Samsung Wave S8500 CREG=2", FALSE, reply,
>     data, &result);
>      }
>     @@ -762,7 +764,7 @@ test_creg2_gobi_weird_solicited (void *f,
>     gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CREG: 2,1,  0 5, 2715\r\n";
>     -    const CregResult result = { 1, 0x0000, 0x2715,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 4, FALSE};
>     +    const CregResult result = { 1, 0x0000, 0x2715,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN, 4, FALSE, FALSE };
> 
>          test_creg_match ("Qualcomm Gobi 1000 CREG=2", TRUE, reply,
>     data, &result);
>      }
>     @@ -772,11 +774,71 @@ test_cgreg2_unsolicited_with_rac (void *f,
>     gpointer d)
>      {
>          RegTestData *data = (RegTestData *) d;
>          const char *reply = "\r\n+CGREG:
>     1,\"1422\",\"00000142\",3,\"00\"\r\n";
>     -    const CregResult result = { 1, 0x1422, 0x0142,
>     MM_MODEM_ACCESS_TECHNOLOGY_EDGE, 8, TRUE };
>     +    const CregResult result = { 1, 0x1422, 0x0142,
>     MM_MODEM_ACCESS_TECHNOLOGY_EDGE, 8, TRUE, FALSE };
> 
>          test_creg_match ("CGREG=2 with RAC", FALSE, reply, data, &result);
>      }
> 
>     +static void
>     +test_cereg1_solicited (void *f, gpointer d)
>     +{
>     +    RegTestData *data = (RegTestData *) d;
>     +    const char *reply = "+CEREG: 1,3";
>     +    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 2, FALSE, TRUE };
>     +
>     +    test_creg_match ("CEREG=1", TRUE, reply, data, &result);
>     +}
>     +
>     +static void
>     +test_cereg1_unsolicited (void *f, gpointer d)
>     +{
>     +    RegTestData *data = (RegTestData *) d;
>     +    const char *reply = "\r\n+CEREG: 3\r\n";
>     +    const CregResult result = { 3, 0, 0,
>     MM_MODEM_ACCESS_TECHNOLOGY_UNKNOWN , 1, FALSE, TRUE };
>     +
>     +    test_creg_match ("CEREG=1", FALSE, reply, data, &result);
>     +}
>     +
>     +static void
>     +test_cereg2_solicited (void *f, gpointer d)
>     +{
>     +    RegTestData *data = (RegTestData *) d;
>     +    const char *reply = "\r\n+CEREG: 2,1, 1F00, 79D903 ,7\r\n";
>     +    const CregResult result = { 1, 0x1F00, 0x79D903,
>     MM_MODEM_ACCESS_TECHNOLOGY_LTE, 6, FALSE, TRUE };
>     +
>     +    test_creg_match ("CEREG=2", TRUE, reply, data, &result);
>     +}
>     +
>     +static void
>     +test_cereg2_unsolicited (void *f, gpointer d)
>     +{
>     +    RegTestData *data = (RegTestData *) d;
>     +    const char *reply = "\r\n+CEREG: 1, 1F00, 79D903 ,7\r\n";
>     +    const CregResult result = { 1, 0x1F00, 0x79D903,
>     MM_MODEM_ACCESS_TECHNOLOGY_LTE, 5, FALSE, TRUE };
>     +
>     +    test_creg_match ("CEREG=2", FALSE, reply, data, &result);
>     +}
>     +
>     +static void
>     +test_cereg2_novatel_lte_solicited (void *f, gpointer d)
>     +{
>     +    RegTestData *data = (RegTestData *) d;
>     +    const char *reply = "\r\n+CEREG: 2,1, 1F00, 20 ,79D903 ,7\r\n";
>     +    const CregResult result = { 1, 0x1F00, 0x79D903,
>     MM_MODEM_ACCESS_TECHNOLOGY_LTE, 10, FALSE, TRUE };
>     +
>     +    test_creg_match ("Novatel LTE E362 CEREG=2", TRUE, reply, data,
>     &result);
>     +}
>     +
>     +static void
>     +test_cereg2_novatel_lte_unsolicited (void *f, gpointer d)
>     +{
>     +    RegTestData *data = (RegTestData *) d;
>     +    const char *reply = "\r\n+CEREG: 1, 1F00, 20 ,79D903 ,7\r\n";
>     +    const CregResult result = { 1, 0x1F00, 0x79D903,
>     MM_MODEM_ACCESS_TECHNOLOGY_LTE, 9, FALSE, TRUE };
>     +
>     +    test_creg_match ("Novatel LTE E362 CEREG=2", FALSE, reply,
>     data, &result);
>     +}
>     +
>      /*****************************************************************************/
>      /* Test CSCS responses */
> 
>     @@ -1617,6 +1679,13 @@ int main (int argc, char **argv)
>          g_test_suite_add (suite, TESTCASE
>     (test_cgreg2_x220_unsolicited, reg_data));
>          g_test_suite_add (suite, TESTCASE
>     (test_cgreg2_unsolicited_with_rac, reg_data));
> 
>     +    g_test_suite_add (suite, TESTCASE (test_cereg1_solicited,
>     reg_data));
>     +    g_test_suite_add (suite, TESTCASE (test_cereg1_unsolicited,
>     reg_data));
>     +    g_test_suite_add (suite, TESTCASE (test_cereg2_solicited,
>     reg_data));
>     +    g_test_suite_add (suite, TESTCASE (test_cereg2_unsolicited,
>     reg_data));
>     +    g_test_suite_add (suite, TESTCASE
>     (test_cereg2_novatel_lte_solicited, reg_data));
>     +    g_test_suite_add (suite, TESTCASE
>     (test_cereg2_novatel_lte_unsolicited, reg_data));
>     +
>          g_test_suite_add (suite, TESTCASE
>     (test_creg_cgreg_multi_unsolicited, reg_data));
>          g_test_suite_add (suite, TESTCASE
>     (test_creg_cgreg_multi2_unsolicited, reg_data));
> 
>     --
>     1.8.1
> 
> 


-- 
Aleksander


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