build: move plugins directory to src/plugins

We are going to allow including the plugin sources built within the
ModemManager daemon binary; moving the sources within the daemon
sources directory makes it easier.

1 files changed, 1261 insertions, 0 deletions

diff --git a/src/plugins/simtech/mm-shared-simtech.c b/src/plugins/simtech/mm-shared-simtech.c
new file mode 100644
index 00000000..99c2346e
--- /dev/null
+++ b/src/plugins/simtech/mm-shared-simtech.c
@@ -0,0 +1,1261 @@
+/* -*- 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) 2019 Aleksander Morgado <aleksander@aleksander.es>
+ */
+
+#include <config.h>
+
+#include <glib-object.h>
+#include <gio/gio.h>
+
+#define _LIBMM_INSIDE_MM
+#include <libmm-glib.h>
+
+#include "mm-log-object.h"
+#include "mm-iface-modem.h"
+#include "mm-iface-modem-voice.h"
+#include "mm-iface-modem-location.h"
+#include "mm-base-modem.h"
+#include "mm-base-modem-at.h"
+#include "mm-shared-simtech.h"
+#include "mm-modem-helpers-simtech.h"
+
+/*****************************************************************************/
+/* Private data context */
+
+#define PRIVATE_TAG "shared-simtech-private-tag"
+static GQuark private_quark;
+
+typedef enum {
+    FEATURE_SUPPORT_UNKNOWN,
+    FEATURE_NOT_SUPPORTED,
+    FEATURE_SUPPORTED,
+} FeatureSupport;
+
+typedef struct {
+    /* location */
+    MMIfaceModemLocation  *iface_modem_location_parent;
+    MMModemLocationSource  supported_sources;
+    MMModemLocationSource  enabled_sources;
+    FeatureSupport         cgps_support;
+    /* voice */
+    MMIfaceModemVoice     *iface_modem_voice_parent;
+    FeatureSupport         cpcmreg_support;
+    FeatureSupport         clcc_urc_support;
+    GRegex                *clcc_urc_regex;
+    GRegex                *voice_call_regex;
+    GRegex                *missed_call_regex;
+    GRegex                *cring_regex;
+    GRegex                *rxdtmf_regex;
+} Private;
+
+static void
+private_free (Private *ctx)
+{
+    g_regex_unref (ctx->rxdtmf_regex);
+    g_regex_unref (ctx->cring_regex);
+    g_regex_unref (ctx->missed_call_regex);
+    g_regex_unref (ctx->voice_call_regex);
+    g_regex_unref (ctx->clcc_urc_regex);
+    g_slice_free (Private, ctx);
+}
+
+static Private *
+get_private (MMSharedSimtech *self)
+{
+    Private *priv;
+
+    if (G_UNLIKELY (!private_quark))
+        private_quark =  (g_quark_from_static_string (PRIVATE_TAG));
+
+    priv = g_object_get_qdata (G_OBJECT (self), private_quark);
+    if (!priv) {
+        priv = g_slice_new0 (Private);
+        priv->supported_sources = MM_MODEM_LOCATION_SOURCE_NONE;
+        priv->enabled_sources = MM_MODEM_LOCATION_SOURCE_NONE;
+        priv->cgps_support = FEATURE_SUPPORT_UNKNOWN;
+        priv->cpcmreg_support = FEATURE_SUPPORT_UNKNOWN;
+        priv->clcc_urc_support = FEATURE_SUPPORT_UNKNOWN;
+        priv->clcc_urc_regex = mm_simtech_get_clcc_urc_regex ();
+        priv->voice_call_regex = mm_simtech_get_voice_call_urc_regex ();
+        priv->missed_call_regex = mm_simtech_get_missed_call_urc_regex ();
+        priv->cring_regex = mm_simtech_get_cring_urc_regex ();
+        priv->rxdtmf_regex = mm_simtech_get_rxdtmf_urc_regex ();
+
+        /* Setup parent class' MMIfaceModemLocation and MMIfaceModemVoice */
+
+        g_assert (MM_SHARED_SIMTECH_GET_INTERFACE (self)->peek_parent_location_interface);
+        priv->iface_modem_location_parent = MM_SHARED_SIMTECH_GET_INTERFACE (self)->peek_parent_location_interface (self);
+
+        g_assert (MM_SHARED_SIMTECH_GET_INTERFACE (self)->peek_parent_voice_interface);
+        priv->iface_modem_voice_parent = MM_SHARED_SIMTECH_GET_INTERFACE (self)->peek_parent_voice_interface (self);
+
+        g_object_set_qdata_full (G_OBJECT (self), private_quark, priv, (GDestroyNotify)private_free);
+    }
+
+    return priv;
+}
+
+/*****************************************************************************/
+/* GPS trace received */
+
+static void
+trace_received (MMPortSerialGps      *port,
+                const gchar          *trace,
+                MMIfaceModemLocation *self)
+{
+    mm_iface_modem_location_gps_update (self, trace);
+}
+
+/*****************************************************************************/
+/* Location capabilities loading (Location interface) */
+
+MMModemLocationSource
+mm_shared_simtech_location_load_capabilities_finish (MMIfaceModemLocation  *self,
+                                                     GAsyncResult          *res,
+                                                     GError               **error)
+{
+    GError *inner_error = NULL;
+    gssize aux;
+
+    aux = g_task_propagate_int (G_TASK (res), &inner_error);
+    if (inner_error) {
+        g_propagate_error (error, inner_error);
+        return MM_MODEM_LOCATION_SOURCE_NONE;
+    }
+    return (MMModemLocationSource) aux;
+}
+
+static void probe_gps_features (GTask *task);
+
+static void
+cgps_test_ready (MMBaseModem  *self,
+                 GAsyncResult *res,
+                 GTask        *task)
+{
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!mm_base_modem_at_command_finish (self, res, NULL))
+        priv->cgps_support = FEATURE_NOT_SUPPORTED;
+    else
+        priv->cgps_support = FEATURE_SUPPORTED;
+
+    probe_gps_features (task);
+}
+
+static void
+probe_gps_features (GTask *task)
+{
+    MMSharedSimtech       *self;
+    MMModemLocationSource  sources;
+    Private               *priv;
+
+    self = MM_SHARED_SIMTECH (g_task_get_source_object (task));
+    priv = get_private (self);
+
+    /* Need to check if CGPS supported... */
+    if (priv->cgps_support == FEATURE_SUPPORT_UNKNOWN) {
+        mm_base_modem_at_command (MM_BASE_MODEM (self), "+CGPS=?", 3, TRUE, (GAsyncReadyCallback) cgps_test_ready, task);
+        return;
+    }
+
+    /* All GPS features probed */
+
+    /* Recover parent sources */
+    sources = GPOINTER_TO_UINT (g_task_get_task_data (task));
+
+    if (priv->cgps_support == FEATURE_SUPPORTED) {
+        mm_obj_dbg (self, "GPS commands supported: GPS capabilities enabled");
+
+        /* We only flag as supported by this implementation those sources not already
+         * supported by the parent implementation */
+        if (!(sources & MM_MODEM_LOCATION_SOURCE_GPS_NMEA))
+            priv->supported_sources |= MM_MODEM_LOCATION_SOURCE_GPS_NMEA;
+        if (!(sources & MM_MODEM_LOCATION_SOURCE_GPS_RAW))
+            priv->supported_sources |= MM_MODEM_LOCATION_SOURCE_GPS_RAW;
+        if (!(sources & MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED))
+            priv->supported_sources |= MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED;
+
+        sources |= priv->supported_sources;
+
+        /* Add handler for the NMEA traces in the GPS data port */
+        mm_port_serial_gps_add_trace_handler (mm_base_modem_peek_port_gps (MM_BASE_MODEM (self)),
+                                              (MMPortSerialGpsTraceFn)trace_received,
+                                              self,
+                                              NULL);
+    } else
+        mm_obj_dbg (self, "no GPS command supported: no GPS capabilities");
+
+    g_task_return_int (task, (gssize) sources);
+    g_object_unref (task);
+}
+
+static void
+parent_load_capabilities_ready (MMIfaceModemLocation *self,
+                                GAsyncResult         *res,
+                                GTask                *task)
+{
+    MMModemLocationSource  sources;
+    GError                *error = NULL;
+    Private               *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    sources = priv->iface_modem_location_parent->load_capabilities_finish (self, res, &error);
+    if (error) {
+        g_task_return_error (task, error);
+        g_object_unref (task);
+        return;
+    }
+
+    /* Now our own check. If we don't have any GPS port, we're done */
+    if (!mm_base_modem_peek_port_gps (MM_BASE_MODEM (self))) {
+        mm_obj_dbg (self, "no GPS data port found: no GPS capabilities");
+        g_task_return_int (task, sources);
+        g_object_unref (task);
+        return;
+    }
+
+    /* Cache sources supported by the parent */
+    g_task_set_task_data (task, GUINT_TO_POINTER (sources), NULL);
+
+    /* Probe all GPS features */
+    probe_gps_features (task);
+}
+
+void
+mm_shared_simtech_location_load_capabilities (MMIfaceModemLocation *self,
+                                              GAsyncReadyCallback   callback,
+                                              gpointer              user_data)
+{
+    Private *priv;
+    GTask   *task;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    task = g_task_new (self, NULL, callback, user_data);
+
+    g_assert (priv->iface_modem_location_parent);
+    g_assert (priv->iface_modem_location_parent->load_capabilities);
+    g_assert (priv->iface_modem_location_parent->load_capabilities_finish);
+
+    priv->iface_modem_location_parent->load_capabilities (self,
+                                                          (GAsyncReadyCallback)parent_load_capabilities_ready,
+                                                          task);
+}
+
+/*****************************************************************************/
+/* Disable location gathering (Location interface) */
+
+gboolean
+mm_shared_simtech_disable_location_gathering_finish (MMIfaceModemLocation  *self,
+                                                     GAsyncResult          *res,
+                                                     GError               **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+disable_cgps_ready (MMBaseModem  *self,
+                    GAsyncResult *res,
+                    GTask        *task)
+{
+    MMModemLocationSource  source;
+    Private               *priv;
+    GError                *error = NULL;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    mm_base_modem_at_command_finish (self, res, &error);
+
+    /* Only use the GPS port in NMEA/RAW setups */
+    source = (MMModemLocationSource) GPOINTER_TO_UINT (g_task_get_task_data (task));
+    if (source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA | MM_MODEM_LOCATION_SOURCE_GPS_RAW)) {
+        MMPortSerialGps *gps_port;
+
+        /* Even if we get an error here, we try to close the GPS port */
+        gps_port = mm_base_modem_peek_port_gps (MM_BASE_MODEM (self));
+        if (gps_port)
+            mm_port_serial_close (MM_PORT_SERIAL (gps_port));
+    }
+
+    if (error)
+        g_task_return_error (task, error);
+    else {
+        priv->enabled_sources &= ~source;
+        g_task_return_boolean (task, TRUE);
+    }
+    g_object_unref (task);
+}
+
+static void
+parent_disable_location_gathering_ready (MMIfaceModemLocation *self,
+                                         GAsyncResult         *res,
+                                         GTask                *task)
+{
+    GError  *error = NULL;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    g_assert (priv->iface_modem_location_parent);
+    if (!priv->iface_modem_location_parent->disable_location_gathering_finish (self, res, &error))
+        g_task_return_error (task, error);
+    else
+        g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+void
+mm_shared_simtech_disable_location_gathering (MMIfaceModemLocation  *self,
+                                              MMModemLocationSource  source,
+                                              GAsyncReadyCallback    callback,
+                                              gpointer               user_data)
+{
+    MMModemLocationSource  enabled_sources;
+    Private               *priv;
+    GTask                 *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+    g_task_set_task_data (task, GUINT_TO_POINTER (source), NULL);
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_location_parent);
+
+    /* Only consider request if it applies to one of the sources we are
+     * supporting, otherwise run parent disable */
+    if (!(priv->supported_sources & source)) {
+        /* If disabling implemented by the parent, run it. */
+        if (priv->iface_modem_location_parent->disable_location_gathering &&
+            priv->iface_modem_location_parent->disable_location_gathering_finish) {
+            priv->iface_modem_location_parent->disable_location_gathering (self,
+                                                                           source,
+                                                                           (GAsyncReadyCallback)parent_disable_location_gathering_ready,
+                                                                           task);
+            return;
+        }
+        /* Otherwise, we're done */
+        g_task_return_boolean (task, TRUE);
+        g_object_unref (task);
+        return;
+    }
+
+    /* We only expect GPS sources here */
+    g_assert (source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
+                        MM_MODEM_LOCATION_SOURCE_GPS_RAW |
+                        MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED));
+
+    /* Flag as disabled to see how many others we would have left enabled */
+    enabled_sources = priv->enabled_sources;
+    enabled_sources &= ~source;
+
+    /* If there are still GPS-related sources enabled, do nothing else */
+    if (enabled_sources & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
+                           MM_MODEM_LOCATION_SOURCE_GPS_RAW |
+                           MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)) {
+        priv->enabled_sources &= ~source;
+        g_task_return_boolean (task, TRUE);
+        g_object_unref (task);
+        return;
+    }
+
+    /* Stop GPS engine if all GPS-related sources are disabled */
+    g_assert (priv->cgps_support == FEATURE_SUPPORTED);
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              "+CGPS=0",
+                              10,
+                              FALSE,
+                              (GAsyncReadyCallback) disable_cgps_ready,
+                              task);
+}
+
+/*****************************************************************************/
+/* Enable location gathering (Location interface) */
+
+gboolean
+mm_shared_simtech_enable_location_gathering_finish (MMIfaceModemLocation  *self,
+                                                    GAsyncResult          *res,
+                                                    GError               **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+enable_cgps_ready (MMBaseModem  *self,
+                   GAsyncResult *res,
+                   GTask        *task)
+{
+    MMModemLocationSource  source;
+    GError                *error = NULL;
+    Private               *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!mm_base_modem_at_command_finish (self, res, &error)) {
+        g_task_return_error (task, error);
+        g_object_unref (task);
+        return;
+    }
+
+    /* Only use the GPS port in NMEA/RAW setups */
+    source = (MMModemLocationSource) GPOINTER_TO_UINT (g_task_get_task_data (task));
+    if (source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
+                  MM_MODEM_LOCATION_SOURCE_GPS_RAW)) {
+        MMPortSerialGps *gps_port;
+
+        gps_port = mm_base_modem_peek_port_gps (MM_BASE_MODEM (self));
+        if (!gps_port || !mm_port_serial_open (MM_PORT_SERIAL (gps_port), &error)) {
+            if (error)
+                g_task_return_error (task, error);
+            else
+                g_task_return_new_error (task, MM_CORE_ERROR, MM_CORE_ERROR_FAILED,
+                                         "Couldn't open raw GPS serial port");
+            g_object_unref (task);
+            return;
+        }
+    }
+
+    priv->enabled_sources |= source;
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+static void
+parent_enable_location_gathering_ready (MMIfaceModemLocation *self,
+                                        GAsyncResult         *res,
+                                        GTask                *task)
+{
+    GError  *error = NULL;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    g_assert (priv->iface_modem_location_parent);
+    if (!priv->iface_modem_location_parent->enable_location_gathering_finish (self, res, &error))
+        g_task_return_error (task, error);
+    else
+        g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+void
+mm_shared_simtech_enable_location_gathering (MMIfaceModemLocation  *self,
+                                             MMModemLocationSource  source,
+                                             GAsyncReadyCallback    callback,
+                                             gpointer               user_data)
+{
+    Private *priv;
+    GTask   *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+    g_task_set_task_data (task, GUINT_TO_POINTER (source), NULL);
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_location_parent);
+    g_assert (priv->iface_modem_location_parent->enable_location_gathering);
+    g_assert (priv->iface_modem_location_parent->enable_location_gathering_finish);
+
+    /* Only consider request if it applies to one of the sources we are
+     * supporting, otherwise run parent enable */
+    if (!(priv->supported_sources & source)) {
+        priv->iface_modem_location_parent->enable_location_gathering (self,
+                                                                      source,
+                                                                      (GAsyncReadyCallback)parent_enable_location_gathering_ready,
+                                                                      task);
+        return;
+    }
+
+    /* We only expect GPS sources here */
+    g_assert (source & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
+                        MM_MODEM_LOCATION_SOURCE_GPS_RAW |
+                        MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED));
+
+    /* If GPS already started, store new flag and we're done */
+    if (priv->enabled_sources & (MM_MODEM_LOCATION_SOURCE_GPS_NMEA |
+                                 MM_MODEM_LOCATION_SOURCE_GPS_RAW |
+                                 MM_MODEM_LOCATION_SOURCE_GPS_UNMANAGED)) {
+        priv->enabled_sources |= source;
+        g_task_return_boolean (task, TRUE);
+        g_object_unref (task);
+        return;
+    }
+
+    g_assert (priv->cgps_support == FEATURE_SUPPORTED);
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              "+CGPS=1,1",
+                              10,
+                              FALSE,
+                              (GAsyncReadyCallback) enable_cgps_ready,
+                              task);
+}
+
+/*****************************************************************************/
+/* Common enable/disable voice unsolicited events */
+
+typedef struct {
+    gboolean        enable;
+    MMPortSerialAt *primary;
+    MMPortSerialAt *secondary;
+    gchar          *clcc_command;
+    gboolean        clcc_primary_done;
+    gboolean        clcc_secondary_done;
+} VoiceUnsolicitedEventsContext;
+
+static void
+voice_unsolicited_events_context_free (VoiceUnsolicitedEventsContext *ctx)
+{
+    g_clear_object (&ctx->secondary);
+    g_clear_object (&ctx->primary);
+    g_free (ctx->clcc_command);
+    g_slice_free (VoiceUnsolicitedEventsContext, ctx);
+}
+
+static gboolean
+common_voice_enable_disable_unsolicited_events_finish (MMSharedSimtech  *self,
+                                                       GAsyncResult       *res,
+                                                       GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void run_voice_enable_disable_unsolicited_events (GTask *task);
+
+static void
+clcc_command_ready (MMBaseModem  *self,
+                    GAsyncResult *res,
+                    GTask        *task)
+{
+    VoiceUnsolicitedEventsContext *ctx;
+    GError                        *error = NULL;
+
+    ctx = g_task_get_task_data (task);
+
+    if (!mm_base_modem_at_command_finish (self, res, &error)) {
+        mm_obj_dbg (self, "couldn't %s +CLCC reporting: '%s'",
+                    ctx->enable ? "enable" : "disable",
+                    error->message);
+        g_error_free (error);
+    }
+
+    /* Continue on next port */
+    run_voice_enable_disable_unsolicited_events (task);
+}
+
+static void
+run_voice_enable_disable_unsolicited_events (GTask *task)
+{
+    MMSharedSimtech               *self;
+    Private                       *priv;
+    VoiceUnsolicitedEventsContext *ctx;
+    MMPortSerialAt                *port = NULL;
+
+    self = MM_SHARED_SIMTECH (g_task_get_source_object (task));
+    priv = get_private (self);
+    ctx  = g_task_get_task_data (task);
+
+    /* If +CLCC URCs not supported, we're done */
+    if (priv->clcc_urc_support == FEATURE_NOT_SUPPORTED) {
+        g_task_return_boolean (task, TRUE);
+        g_object_unref (task);
+        return;
+    }
+
+    if (!ctx->clcc_primary_done && ctx->primary) {
+        mm_obj_dbg (self, "%s +CLCC extended list of current calls reporting in primary port...",
+                    ctx->enable ? "enabling" : "disabling");
+        ctx->clcc_primary_done = TRUE;
+        port = ctx->primary;
+    } else if (!ctx->clcc_secondary_done && ctx->secondary) {
+        mm_obj_dbg (self, "%s +CLCC extended list of current calls reporting in secondary port...",
+                    ctx->enable ? "enabling" : "disabling");
+        ctx->clcc_secondary_done = TRUE;
+        port = ctx->secondary;
+    }
+
+    if (port) {
+        mm_base_modem_at_command_full (MM_BASE_MODEM (self),
+                                       port,
+                                       ctx->clcc_command,
+                                       3,
+                                       FALSE,
+                                       FALSE,
+                                       NULL,
+                                       (GAsyncReadyCallback)clcc_command_ready,
+                                       task);
+        return;
+    }
+
+    /* Fully done now */
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+static void
+common_voice_enable_disable_unsolicited_events (MMSharedSimtech     *self,
+                                                gboolean             enable,
+                                                GAsyncReadyCallback  callback,
+                                                gpointer             user_data)
+{
+    VoiceUnsolicitedEventsContext *ctx;
+    GTask                         *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    ctx = g_slice_new0 (VoiceUnsolicitedEventsContext);
+    ctx->enable = enable;
+    if (enable)
+        ctx->clcc_command = g_strdup ("+CLCC=1");
+    else
+        ctx->clcc_command = g_strdup ("+CLCC=0");
+    ctx->primary = mm_base_modem_get_port_primary (MM_BASE_MODEM (self));
+    ctx->secondary = mm_base_modem_get_port_secondary (MM_BASE_MODEM (self));
+    g_task_set_task_data (task, ctx, (GDestroyNotify) voice_unsolicited_events_context_free);
+
+    run_voice_enable_disable_unsolicited_events (task);
+}
+
+/*****************************************************************************/
+/* Disable unsolicited events (Voice interface) */
+
+gboolean
+mm_shared_simtech_voice_disable_unsolicited_events_finish (MMIfaceModemVoice  *self,
+                                                           GAsyncResult       *res,
+                                                           GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+parent_voice_disable_unsolicited_events_ready (MMIfaceModemVoice *self,
+                                               GAsyncResult      *res,
+                                               GTask             *task)
+{
+    GError  *error = NULL;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!priv->iface_modem_voice_parent->disable_unsolicited_events_finish (self, res, &error)) {
+        mm_obj_warn (self, "couldn't disable parent voice unsolicited events: %s", error->message);
+        g_error_free (error);
+    }
+
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+static void
+voice_disable_unsolicited_events_ready (MMSharedSimtech *self,
+                                        GAsyncResult      *res,
+                                        GTask             *task)
+{
+    Private *priv;
+    GError  *error = NULL;
+
+    if (!common_voice_enable_disable_unsolicited_events_finish (self, res, &error)) {
+        mm_obj_warn (self, "couldn't disable Simtech-specific voice unsolicited events: %s", error->message);
+        g_error_free (error);
+    }
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_voice_parent);
+    g_assert (priv->iface_modem_voice_parent->disable_unsolicited_events);
+    g_assert (priv->iface_modem_voice_parent->disable_unsolicited_events_finish);
+
+    /* Chain up parent's disable */
+    priv->iface_modem_voice_parent->disable_unsolicited_events (
+        MM_IFACE_MODEM_VOICE (self),
+        (GAsyncReadyCallback)parent_voice_disable_unsolicited_events_ready,
+        task);
+}
+
+void
+mm_shared_simtech_voice_disable_unsolicited_events (MMIfaceModemVoice   *self,
+                                                    GAsyncReadyCallback  callback,
+                                                    gpointer             user_data)
+{
+    GTask *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    /* our own disabling first */
+    common_voice_enable_disable_unsolicited_events (MM_SHARED_SIMTECH (self),
+                                                    FALSE,
+                                                    (GAsyncReadyCallback) voice_disable_unsolicited_events_ready,
+                                                    task);
+}
+
+/*****************************************************************************/
+/* Enable unsolicited events (Voice interface) */
+
+gboolean
+mm_shared_simtech_voice_enable_unsolicited_events_finish (MMIfaceModemVoice  *self,
+                                                          GAsyncResult       *res,
+                                                          GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+voice_enable_unsolicited_events_ready (MMSharedSimtech *self,
+                                       GAsyncResult      *res,
+                                       GTask             *task)
+{
+    GError *error = NULL;
+
+    if (!common_voice_enable_disable_unsolicited_events_finish (self, res, &error)) {
+        mm_obj_warn (self, "couldn't enable Simtech-specific voice unsolicited events: %s", error->message);
+        g_error_free (error);
+    }
+
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+static void
+parent_voice_enable_unsolicited_events_ready (MMIfaceModemVoice *self,
+                                              GAsyncResult      *res,
+                                              GTask             *task)
+{
+    GError  *error = NULL;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!priv->iface_modem_voice_parent->enable_unsolicited_events_finish (self, res, &error)) {
+        mm_obj_warn (self, "couldn't enable parent voice unsolicited events: %s", error->message);
+        g_error_free (error);
+    }
+
+    /* our own enabling next */
+    common_voice_enable_disable_unsolicited_events (MM_SHARED_SIMTECH (self),
+                                                    TRUE,
+                                                    (GAsyncReadyCallback) voice_enable_unsolicited_events_ready,
+                                                    task);
+}
+
+void
+mm_shared_simtech_voice_enable_unsolicited_events (MMIfaceModemVoice   *self,
+                                                   GAsyncReadyCallback  callback,
+                                                   gpointer             user_data)
+{
+    Private *priv;
+    GTask   *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_voice_parent);
+    g_assert (priv->iface_modem_voice_parent->enable_unsolicited_events);
+    g_assert (priv->iface_modem_voice_parent->enable_unsolicited_events_finish);
+
+    /* chain up parent's enable first */
+    priv->iface_modem_voice_parent->enable_unsolicited_events (
+        self,
+        (GAsyncReadyCallback)parent_voice_enable_unsolicited_events_ready,
+        task);
+}
+
+/*****************************************************************************/
+/* Common setup/cleanup voice unsolicited events */
+
+static void
+clcc_urc_received (MMPortSerialAt  *port,
+                   GMatchInfo      *match_info,
+                   MMSharedSimtech *self)
+{
+    gchar  *full;
+    GError *error = NULL;
+    GList  *call_info_list = NULL;
+
+    full = g_match_info_fetch (match_info, 0);
+
+    if (!mm_simtech_parse_clcc_list (full, self, &call_info_list, &error)) {
+        mm_obj_warn (self, "couldn't parse +CLCC list in URC: %s", error->message);
+        g_error_free (error);
+    } else
+        mm_iface_modem_voice_report_all_calls (MM_IFACE_MODEM_VOICE (self), call_info_list);
+
+    mm_simtech_call_info_list_free (call_info_list);
+    g_free (full);
+}
+
+static void
+missed_call_urc_received (MMPortSerialAt  *port,
+                          GMatchInfo      *match_info,
+                          MMSharedSimtech *self)
+{
+    GError *error = NULL;
+    gchar  *details = NULL;
+
+    if (!mm_simtech_parse_missed_call_urc (match_info, &details, &error)) {
+        mm_obj_warn (self, "couldn't parse missed call URC: %s", error->message);
+        g_error_free (error);
+        return;
+    }
+
+    mm_obj_dbg (self, "missed call reported: %s", details);
+    g_free (details);
+}
+
+static void
+voice_call_urc_received (MMPortSerialAt  *port,
+                         GMatchInfo      *match_info,
+                         MMSharedSimtech *self)
+{
+    GError   *error = NULL;
+    gboolean  start_or_stop = FALSE; /* start = TRUE, stop = FALSE */
+    guint     duration = 0;
+
+    if (!mm_simtech_parse_voice_call_urc (match_info, &start_or_stop, &duration, &error)) {
+        mm_obj_warn (self, "couldn't parse voice call URC: %s", error->message);
+        g_error_free (error);
+        return;
+    }
+
+    if (start_or_stop) {
+        mm_obj_dbg (self, "voice call started");
+        return;
+    }
+
+    if (duration) {
+        mm_obj_dbg (self, "voice call finished (duration: %us)", duration);
+        return;
+    }
+
+    mm_obj_dbg (self, "voice call finished");
+}
+
+static void
+cring_urc_received (MMPortSerialAt  *port,
+                    GMatchInfo      *info,
+                    MMSharedSimtech *self)
+{
+    MMCallInfo        call_info;
+    g_autofree gchar *str = NULL;
+
+    /* We could have "VOICE" or "DATA". Now consider only "VOICE" */
+    str = mm_get_string_unquoted_from_match_info (info, 1);
+    mm_obj_dbg (self, "ringing (%s)", str);
+
+    call_info.index     = 0;
+    call_info.direction = MM_CALL_DIRECTION_INCOMING;
+    call_info.state     = MM_CALL_STATE_RINGING_IN;
+    call_info.number    = NULL;
+
+    mm_iface_modem_voice_report_call (MM_IFACE_MODEM_VOICE (self), &call_info);
+}
+
+static void
+rxdtmf_urc_received (MMPortSerialAt  *port,
+                     GMatchInfo      *match_info,
+                     MMSharedSimtech *self)
+{
+    g_autofree gchar *dtmf = NULL;
+
+    dtmf = g_match_info_fetch (match_info, 1);
+    mm_obj_dbg (self, "received DTMF: %s", dtmf);
+    /* call index unknown */
+    mm_iface_modem_voice_received_dtmf (MM_IFACE_MODEM_VOICE (self), 0, dtmf);
+}
+
+static void
+common_voice_setup_cleanup_unsolicited_events (MMSharedSimtech *self,
+                                               gboolean         enable)
+{
+    Private        *priv;
+    MMPortSerialAt *ports[2];
+    guint           i;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    ports[0] = mm_base_modem_peek_port_primary   (MM_BASE_MODEM (self));
+    ports[1] = mm_base_modem_peek_port_secondary (MM_BASE_MODEM (self));
+
+    for (i = 0; i < G_N_ELEMENTS (ports); i++) {
+        if (!ports[i])
+            continue;
+
+        if (priv->clcc_urc_support == FEATURE_SUPPORTED)
+            mm_port_serial_at_add_unsolicited_msg_handler (ports[i],
+                                                           priv->clcc_urc_regex,
+                                                           enable ? (MMPortSerialAtUnsolicitedMsgFn)clcc_urc_received : NULL,
+                                                           enable ? self : NULL,
+                                                           NULL);
+
+        mm_port_serial_at_add_unsolicited_msg_handler (ports[i],
+                                                       priv->voice_call_regex,
+                                                       enable ? (MMPortSerialAtUnsolicitedMsgFn)voice_call_urc_received : NULL,
+                                                       enable ? self : NULL,
+                                                       NULL);
+
+        mm_port_serial_at_add_unsolicited_msg_handler (ports[i],
+                                                       priv->missed_call_regex,
+                                                       enable ? (MMPortSerialAtUnsolicitedMsgFn)missed_call_urc_received : NULL,
+                                                       enable ? self : NULL,
+                                                       NULL);
+
+        mm_port_serial_at_add_unsolicited_msg_handler (ports[i],
+                                                       priv->cring_regex,
+                                                       enable ? (MMPortSerialAtUnsolicitedMsgFn)cring_urc_received : NULL,
+                                                       enable ? self : NULL,
+                                                       NULL);
+
+        mm_port_serial_at_add_unsolicited_msg_handler (ports[i],
+                                                       priv->rxdtmf_regex,
+                                                       enable ? (MMPortSerialAtUnsolicitedMsgFn)rxdtmf_urc_received : NULL,
+                                                       enable ? self : NULL,
+                                                       NULL);
+    }
+}
+
+/*****************************************************************************/
+/* Cleanup unsolicited events (Voice interface) */
+
+gboolean
+mm_shared_simtech_voice_cleanup_unsolicited_events_finish (MMIfaceModemVoice  *self,
+                                                           GAsyncResult       *res,
+                                                           GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+parent_voice_cleanup_unsolicited_events_ready (MMIfaceModemVoice *self,
+                                               GAsyncResult      *res,
+                                               GTask             *task)
+{
+    GError  *error = NULL;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!priv->iface_modem_voice_parent->cleanup_unsolicited_events_finish (self, res, &error)) {
+        mm_obj_warn (self, "couldn't cleanup parent voice unsolicited events: %s", error->message);
+        g_error_free (error);
+    }
+
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+void
+mm_shared_simtech_voice_cleanup_unsolicited_events (MMIfaceModemVoice   *self,
+                                                    GAsyncReadyCallback  callback,
+                                                    gpointer             user_data)
+{
+    Private *priv;
+    GTask   *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_voice_parent);
+    g_assert (priv->iface_modem_voice_parent->cleanup_unsolicited_events);
+    g_assert (priv->iface_modem_voice_parent->cleanup_unsolicited_events_finish);
+
+    /* our own cleanup first */
+    common_voice_setup_cleanup_unsolicited_events (MM_SHARED_SIMTECH (self), FALSE);
+
+    /* Chain up parent's cleanup */
+    priv->iface_modem_voice_parent->cleanup_unsolicited_events (
+        self,
+        (GAsyncReadyCallback)parent_voice_cleanup_unsolicited_events_ready,
+        task);
+}
+
+/*****************************************************************************/
+/* Setup unsolicited events (Voice interface) */
+
+gboolean
+mm_shared_simtech_voice_setup_unsolicited_events_finish (MMIfaceModemVoice  *self,
+                                                         GAsyncResult       *res,
+                                                         GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+parent_voice_setup_unsolicited_events_ready (MMIfaceModemVoice *self,
+                                             GAsyncResult      *res,
+                                             GTask             *task)
+{
+    GError  *error = NULL;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!priv->iface_modem_voice_parent->setup_unsolicited_events_finish (self, res, &error)) {
+        mm_obj_warn (self, "couldn't setup parent voice unsolicited events: %s", error->message);
+        g_error_free (error);
+    }
+
+    /* our own setup next */
+    common_voice_setup_cleanup_unsolicited_events (MM_SHARED_SIMTECH (self), TRUE);
+
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+void
+mm_shared_simtech_voice_setup_unsolicited_events (MMIfaceModemVoice   *self,
+                                                  GAsyncReadyCallback  callback,
+                                                  gpointer             user_data)
+{
+    Private *priv;
+    GTask   *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_voice_parent);
+    g_assert (priv->iface_modem_voice_parent->setup_unsolicited_events);
+    g_assert (priv->iface_modem_voice_parent->setup_unsolicited_events_finish);
+
+    /* chain up parent's setup first */
+    priv->iface_modem_voice_parent->setup_unsolicited_events (
+        self,
+        (GAsyncReadyCallback)parent_voice_setup_unsolicited_events_ready,
+        task);
+}
+
+/*****************************************************************************/
+/* In-call audio channel setup/cleanup */
+
+gboolean
+mm_shared_simtech_voice_setup_in_call_audio_channel_finish (MMIfaceModemVoice  *self,
+                                                            GAsyncResult       *res,
+                                                            MMPort            **audio_port,   /* optional */
+                                                            MMCallAudioFormat **audio_format, /* optional */
+                                                            GError            **error)
+{
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    if (!g_task_propagate_boolean (G_TASK (res), error))
+        return FALSE;
+
+    if (audio_format)
+        *audio_format = NULL;
+
+    if (audio_port) {
+        if (priv->cpcmreg_support == FEATURE_SUPPORTED)
+            *audio_port = MM_PORT (mm_base_modem_get_port_audio (MM_BASE_MODEM (self)));
+        else
+            *audio_port = NULL;
+    }
+
+    return TRUE;
+}
+
+gboolean
+mm_shared_simtech_voice_cleanup_in_call_audio_channel_finish (MMIfaceModemVoice  *self,
+                                                              GAsyncResult       *res,
+                                                              GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+cpcmreg_set_ready (MMBaseModem  *self,
+                   GAsyncResult *res,
+                   GTask        *task)
+{
+    GError *error = NULL;
+
+    if (!mm_base_modem_at_command_finish (self, res, &error))
+        g_task_return_error (task, error);
+    else
+        g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+static void
+common_setup_cleanup_in_call_audio_channel (MMSharedSimtech     *self,
+                                            gboolean             setup,
+                                            GAsyncReadyCallback  callback,
+                                            gpointer             user_data)
+{
+    GTask   *task;
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    /* Do nothing if CPCMREG isn't supported */
+    if (priv->cpcmreg_support != FEATURE_SUPPORTED) {
+        g_task_return_boolean (task, TRUE);
+        g_object_unref (task);
+        return;
+    }
+
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              setup ? "+CPCMREG=1" : "+CPCMREG=0",
+                              3,
+                              FALSE,
+                              (GAsyncReadyCallback) cpcmreg_set_ready,
+                              task);
+}
+
+void
+mm_shared_simtech_voice_setup_in_call_audio_channel (MMIfaceModemVoice   *self,
+                                                     GAsyncReadyCallback  callback,
+                                                     gpointer             user_data)
+{
+    common_setup_cleanup_in_call_audio_channel (MM_SHARED_SIMTECH (self), TRUE, callback, user_data);
+}
+
+void
+mm_shared_simtech_voice_cleanup_in_call_audio_channel (MMIfaceModemVoice   *self,
+                                                       GAsyncReadyCallback  callback,
+                                                       gpointer             user_data)
+{
+    common_setup_cleanup_in_call_audio_channel (MM_SHARED_SIMTECH (self), FALSE, callback, user_data);
+}
+
+/*****************************************************************************/
+/* Check if Voice supported (Voice interface) */
+
+gboolean
+mm_shared_simtech_voice_check_support_finish (MMIfaceModemVoice  *self,
+                                              GAsyncResult       *res,
+                                              GError            **error)
+{
+    return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+cpcmreg_format_check_ready (MMBroadbandModem *self,
+                            GAsyncResult     *res,
+                            GTask            *task)
+{
+    Private *priv;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    priv->cpcmreg_support = (mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, NULL) ?
+                             FEATURE_SUPPORTED : FEATURE_NOT_SUPPORTED);
+    mm_obj_dbg (self, "modem %s USB audio control", (priv->cpcmreg_support == FEATURE_SUPPORTED) ? "supports" : "doesn't support");
+
+    g_task_return_boolean (task, TRUE);
+    g_object_unref (task);
+}
+
+static void
+clcc_format_check_ready (MMBroadbandModem *self,
+                         GAsyncResult     *res,
+                         GTask            *task)
+{
+    Private     *priv;
+    GError      *error = NULL;
+    const gchar *response;
+    gboolean     clcc_urc_supported = FALSE;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+
+    response = mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, NULL);
+    if (response && !mm_simtech_parse_clcc_test (response, &clcc_urc_supported, &error)) {
+        mm_obj_dbg (self, "failed checking CLCC URC support: %s", error->message);
+        g_clear_error (&error);
+    }
+
+    priv->clcc_urc_support = (clcc_urc_supported ? FEATURE_SUPPORTED : FEATURE_NOT_SUPPORTED);
+    mm_obj_dbg (self, "modem %s +CLCC URCs", (priv->clcc_urc_support == FEATURE_SUPPORTED) ? "supports" : "doesn't support");
+
+    /* If +CLCC URC supported we won't need polling in the parent */
+    g_object_set (self,
+                  MM_IFACE_MODEM_VOICE_PERIODIC_CALL_LIST_CHECK_DISABLED, (priv->clcc_urc_support == FEATURE_SUPPORTED),
+                  NULL);
+
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              "+CPCMREG=?",
+                              3,
+                              TRUE,
+                              (GAsyncReadyCallback) cpcmreg_format_check_ready,
+                              task);
+}
+
+static void
+parent_voice_check_support_ready (MMIfaceModemVoice *self,
+                                  GAsyncResult      *res,
+                                  GTask             *task)
+{
+    Private *priv;
+    GError  *error = NULL;
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    if (!priv->iface_modem_voice_parent->check_support_finish (self, res, &error)) {
+        g_task_return_error (task, error);
+        g_object_unref (task);
+        return;
+    }
+
+    /* voice is supported, check if +CLCC URCs are available */
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              "+CLCC=?",
+                              3,
+                              TRUE,
+                              (GAsyncReadyCallback) clcc_format_check_ready,
+                              task);
+}
+
+void
+mm_shared_simtech_voice_check_support (MMIfaceModemVoice   *self,
+                                       GAsyncReadyCallback  callback,
+                                       gpointer             user_data)
+{
+    Private *priv;
+    GTask   *task;
+
+    task = g_task_new (self, NULL, callback, user_data);
+
+    priv = get_private (MM_SHARED_SIMTECH (self));
+    g_assert (priv->iface_modem_voice_parent);
+    g_assert (priv->iface_modem_voice_parent->check_support);
+    g_assert (priv->iface_modem_voice_parent->check_support_finish);
+
+    /* chain up parent's setup first */
+    priv->iface_modem_voice_parent->check_support (
+        self,
+        (GAsyncReadyCallback)parent_voice_check_support_ready,
+        task);
+}
+
+/*****************************************************************************/
+
+static void
+shared_simtech_init (gpointer g_iface)
+{
+}
+
+GType
+mm_shared_simtech_get_type (void)
+{
+    static GType shared_simtech_type = 0;
+
+    if (!G_UNLIKELY (shared_simtech_type)) {
+        static const GTypeInfo info = {
+            sizeof (MMSharedSimtech),  /* class_size */
+            shared_simtech_init,       /* base_init */
+            NULL,                  /* base_finalize */
+        };
+
+        shared_simtech_type = g_type_register_static (G_TYPE_INTERFACE, "MMSharedSimtech", &info, 0);
+        g_type_interface_add_prerequisite (shared_simtech_type, MM_TYPE_IFACE_MODEM_LOCATION);
+    }
+
+    return shared_simtech_type;
+}