<?xml version="1.0" encoding="UTF-8" ?>

<!--
 ModemManager 1.0 Interface Specification

   Copyright (C) 2008 Novell, Inc.
   Copyright (C) 2008-2013 Red Hat, Inc.
   Copyright (C) 2011-2013 Google, Inc.
   Copyright (C) 2011-2013 Lanedo GmbH
-->

<node name="/" xmlns:doc="http://www.freedesktop.org/dbus/1.0/doc.dtd">

  <!--
      org.freedesktop.ModemManager1.Modem.Location:
      @short_description: The ModemManager Location interface.

      The Location interface allows devices to provide location information to
      client applications. Not all devices can provide this information, or even
      if they do, they may not be able to provide it while a data session is
      active.

      This interface will only be available once the modem is ready to be
      registered in the cellular network. 3GPP devices will require a valid
      unlocked SIM card before any of the features in the interface can be
      used (including GNSS module management).
  -->
  <interface name="org.freedesktop.ModemManager1.Modem.Location">

    <!--
        Setup:
        @sources: Bitmask of <link linkend="MMModemLocationSource">MMModemLocationSource</link> flags, specifying which sources should get enabled or disabled. <link linkend="MM-MODEM-LOCATION-SOURCE-NONE:CAPS">MM_MODEM_LOCATION_SOURCE_NONE</link> will disable all location gathering.
        @signal_location: Flag to control whether the device emits signals with the new location information. This argument is ignored when disabling location information gathering.

        Configure the location sources to use when gathering location
        information. Adding new location sources may require to enable them
        in the device (e.g. the GNSS engine will need to be started explicitly
        if a GPS source is requested by the user). In the same way, removing
        location sources may require to disable them in the device (e.g. when
        no GPS sources are requested by the user, the GNSS engine will need
        to be stopped explicitly).

        When location signaling is enabled by the user, any client application (including
        malicious ones!) would be able to use the #org.freedesktop.ModemManager1.Modem.Location:Location
        property to receive location updates. If further security is desired, the
        @signal_location argument can be set to %FALSE to disable location
        updates via D-Bus signals and require applications to call
        authenticated APIs (like <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Location.GetLocation">GetLocation()</link>)
        to get the location information. By default location signaling is disabled,
        and therefore the #org.freedesktop.ModemManager1.Modem.Location:Location property will not
        be usable until explicitly enabled by the user.

        The optional
        <link linkend="MM-MODEM-LOCATION-SOURCE-AGPS-MSA:CAPS">MM_MODEM_LOCATION_SOURCE_AGPS_MSA</link>
        and
        <link linkend="MM-MODEM-LOCATION-SOURCE-AGPS-MSB:CAPS">MM_MODEM_LOCATION_SOURCE_AGPS_MSB</link>
        allow to request MSA/MSB A-GPS operation, and they must be given along with either
        <link linkend="MM-MODEM-LOCATION-SOURCE-GPS-RAW:CAPS">MM_MODEM_LOCATION_SOURCE_GPS_RAW</link>
        or
        <link linkend="MM-MODEM-LOCATION-SOURCE-GPS-NMEA:CAPS">MM_MODEM_LOCATION_SOURCE_GPS_NMEA</link>.
        Both A-GPS operation modes rely on having a valid data connection to connect to an online
        server, and therefore require the modem to have a valid SIM card and be enabled. If no A-GPS mode
        is specified, standalone GPS is assumed.

        Since 1.24, standalone GPS sources may be enabled even with the modem in failed state, e.g.
        when there is no SIM card inserted.

        Since: 1.0
    -->
    <method name="Setup">
      <arg name="sources"         type="u" direction="in" />
      <arg name="signal_location" type="b" direction="in" />
    </method>

    <!--
        GetLocation:
        @location: Dictionary of available location information when location information gathering is enabled.

        Return current location information, if any. If the modem supports
        multiple location types it may return more than one. See the
        #org.freedesktop.ModemManager1.Modem.Location:Location property
        for more information on the dictionary returned at @location.

        This method may require the client to authenticate itself.

        Since: 1.0
    -->
    <method name="GetLocation">
      <arg name="Location" type="a{uv}" direction="out" />
    </method>

    <!--
        SetSuplServer:
        @supl: SUPL server configuration, given either as IP:PORT or as FQDN:PORT.

        Configure the SUPL server for A-GPS.

        Since: 1.6
    -->
    <method name="SetSuplServer">
      <arg name="supl" type="s" direction="in" />
    </method>

    <!--
        InjectAssistanceData:
        @data: assistance data to be injected to the GNSS module.

        Inject assistance data to the GNSS module, which will allow it to have a more
        accurate positioning information.

        The data files should be downloaded using external means from the URLs specified in
        the <link linkend="AssistanceDataServers">AssistanceDataServers</link> property. The
        user does not need to specify the assistance data type being given.

        There is no maximum @data size limit specified, default DBus system bus limits apply.

        This method may be used when the device does not have a mobile network connection by
        itself (e.g. when not even a SIM is inserted), and therefore it cannot use any A-GPS
        server to improve the accuracy of the position. In this case, the user can instead
        download the assistance data files using a WiFi or LAN network, and inject them to
        the GNSS engine manually.

        Since: 1.10
    -->
    <method name="InjectAssistanceData">
      <arg name="data" type="ay" direction="in">
        <annotation name="org.gtk.GDBus.C.ForceGVariant" value="true"/>
      </arg>
    </method>

    <!--
        SetGpsRefreshRate:
        @rate: Rate, in seconds.

        Set the refresh rate of the GPS information in the API. If not explicitly
        set, a default of 30s will be used.

        The refresh rate can be set to 0 to disable it, so that every update reported by
        the modem is published in the interface.

        Since: 1.6
    -->
    <method name="SetGpsRefreshRate">
      <arg name="rate" type="u" direction="in" />
    </method>

    <!--
        Capabilities:

        Bitmask of <link linkend="MMModemLocationSource">MMModemLocationSource</link>
        values, specifying the supported location sources.

        Since: 1.0
    -->
    <property name="Capabilities" type="u" access="read" />

    <!--
        SupportedAssistanceData:

        Bitmask of <link linkend="MMModemLocationAssistanceDataType">MMModemLocationAssistanceDataType</link>
        values, specifying the supported types of assistance data.

        Since: 1.10
    -->
    <property name="SupportedAssistanceData" type="u" access="read" />

    <!--
        Enabled:

        Bitmask specifying which of the supported
        <link linkend="MMModemLocationSource">MMModemLocationSource</link>
        location sources is currently enabled in the device.

        Since: 1.0
    -->
    <property name="Enabled" type="u" access="read" />

    <!--
        SignalsLocation:

        %TRUE if location updates will be emitted via D-Bus signals, %FALSE if
        location updates will not be emitted.

        See the
        <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Location.Setup">Setup()</link>
        method for more information.

        Since: 1.0
    -->
    <property name="SignalsLocation" type="b" access="read" />

    <!--
        Location:

        Dictionary of available location information when location information
        gathering is enabled. If the modem supports multiple location types it
        may return more than one here.

        For security reasons, the location information updates via this
        property are disabled by default. Users can use this property to monitor
        location updates only if the location signals are enabled with
        <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Location.Setup">Setup()</link>,
        but considering that enabling the location signals would allow all users
        to receive property updates as well, not just the process that enabled them.
        For a finer grained access control, the user can use the
        <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Location.GetLocation">GetLocation()</link>
        method instead, which may require the client to authenticate itself on every
        call.

        This dictionary is composed of a
        <link linkend="MMModemLocationSource">MMModemLocationSource</link>
        key, with an associated data which contains type-specific location
        information:

        <variablelist>
        <varlistentry><term><link linkend="MM-MODEM-LOCATION-SOURCE-3GPP-LAC-CI:CAPS">MM_MODEM_LOCATION_SOURCE_3GPP_LAC_CI</link></term>
          <listitem>
            <para>
              Devices supporting this
              capability return a string in the format <literal>"MCC,MNC,LAC,CI,TAC"</literal> (without the
              quotes of course) where the following applies:
            </para>
            <variablelist>
              <varlistentry><term><literal>MCC</literal></term>
                <listitem>
                  This is the three-digit ITU E.212 Mobile Country Code of the
                  network provider to which the mobile is currently registered.
                  e.g. <literal>"310"</literal>.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>MNC</literal></term>
                <listitem>
                  This is the two- or three-digit GSM Mobile Network Code of the
                  network provider to which the mobile is currently registered.
                  e.g. <literal>"26"</literal> or <literal>"260"</literal>.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>LAC</literal></term>
                <listitem>
                  This is the two-byte Location Area Code of the GSM/UMTS base
                  station with which the mobile is registered, in upper-case
                  hexadecimal format without leading zeros, as specified in
                  3GPP TS 27.007. E.g. <literal>"84CD"</literal>.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>CI</literal></term>
                <listitem>
                  This is the two- or four-byte Cell Identifier with which the mobile
                  is registered, in upper-case hexadecimal format without leading
                  zeros, as specified in 3GPP TS 27.007.
                  e.g. <literal>"2BAF"</literal> or <literal>"D30156"</literal>.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>TAC</literal></term>
                <listitem>
                  This is the two- or three-byte Tracking Area Code of the LTE/5GNR
                  base station with which the mobile is registered, in upper-case
                  hexadecimal format without leading zeros, as specified in
                  3GPP TS 27.007. E.g. <literal>"6FFE"</literal>. Since 1.10.
                </listitem>
              </varlistentry>
            </variablelist>
            <para>
              The entire string may only be composed of the ASCII digits <literal>[0-9]</literal>,
              the alphabetical characters <literal>[A-F]</literal>, and the comma (<literal>,</literal>) character.
              No other characters are allowed.  For example: <literal>"310,260,8BE3,2BAF"</literal> or
              <literal>"250,40,CE00,1CEAD8F0"</literal>.
            </para>
            <para>
              If any of these four items (<literal>MCC</literal>, <literal>MNC</literal>,
              <literal>LAC</literal>, <literal>CI</literal>) is unknown or the
              mobile is not registered with a network, then the
              <link linkend="MM-MODEM-LOCATION-SOURCE-3GPP-LAC-CI:CAPS">MM_MODEM_LOCATION_SOURCE_3GPP_LAC_CI</link>
              location
              information item should not be provided as a returned value from the
              <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Location.GetLocation">GetLocation()</link>
              method or in the #org.freedesktop.ModemManager1.Modem.Location:Location property.
            </para>
          </listitem>
        </varlistentry>
        <varlistentry><term><link linkend="MM-MODEM-LOCATION-SOURCE-GPS-RAW:CAPS">MM_MODEM_LOCATION_SOURCE_GPS_RAW</link></term>
          <listitem>
            <para>
              Devices supporting this
              capability return a D-Bus dictionary (signature <literal>"a{sv}"</literal>) mapping well-known
              keys to values with defined formats.
            </para>
            <para>
              The allowed key/value pairs and their formats are:
            </para>
            <variablelist>
              <varlistentry><term><literal>"utc-time"</literal></term>
                <listitem>
                  (Required) UTC time in ISO 8601 format, given as a string value (signature <literal>"s"</literal>). e.g. <literal>203015</literal>.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>"latitude"</literal></term>
                <listitem>
                  (Required) Latitude in Decimal Degrees (positive numbers mean N quadrasphere, negative mean S quadrasphere), given as a double value (signature <literal>"d"</literal>). e.g. <literal>38.889722</literal>, meaning 38d 53' 22" N.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>"longitude"</literal></term>
                <listitem>
                  (Required) Longitude in Decimal Degrees (positive numbers mean E quadrasphere, negative mean W quadrasphere), given as a double value (signature <literal>"d"</literal>). e.g. <literal>-77.008889</literal>, meaning 77d 0' 32" W.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>"altitude"</literal></term>
                <listitem>
                  (Optional) Altitude above sea level in meters, given as a double value (signature <literal>"d"</literal>). e.g. <literal>33.5</literal>.
                </listitem>
              </varlistentry>
            </variablelist>
          </listitem>
        </varlistentry>
        <varlistentry><term><link linkend="MM-MODEM-LOCATION-SOURCE-GPS-NMEA:CAPS">MM_MODEM_LOCATION_SOURCE_GPS_NMEA</link></term>
          <listitem>
            <para>
              Devices supporting this capability return
              a string containing one or more NMEA sentences (D-Bus signature <literal>'s'</literal>).
              The manager will cache the most recent NMEA sentence of each type for
              a period of time not less than 30 seconds.  When reporting multiple
              NMEA sentences, sentences shall be separated by an ASCII Carriage
              Return and Line Feed (<literal>&lt;CR&gt;&lt;LF&gt;</literal>) sequence.
            </para>
            <para>
              For example, if the device sends a <literal>$GPRMC</literal> sentence immediately
              followed by a <literal>$GPGGA</literal> sentence, the reported location string would be
              (where of course the <literal>&lt;CR&gt;&lt;LF&gt;</literal> is replaced with the actual
              ASCII <literal>CR</literal> (0x0D) and <literal>LF</literal> (0x0A) control characters):
              <para><literal>
                $GPRMC,134523.92,V,,,,,,,030136,,,N*73&lt;CR&gt;&lt;LF&gt;$GPGGA,,,,,,0,00,0.5,,M,0.0001999,M,0.0000099,0000*45
              </literal></para>
              If the device sends a new <literal>$GPRMC</literal> three seconds later, the new <literal>$GPRMC</literal>
              replaces the previously received <literal>$GPRMC</literal> sentence, and the updated
              string would be:
              <para><literal>
                $GPRMC,134526.92,V,,,,,,,030136,,,N*76&lt;CR&gt;&lt;LF&gt;$GPGGA,,,,,,0,00,0.5,,M,0.0001999,M,0.0000099,0000*45
              </literal></para>
              If the device then sends a <literal>$GPGSA</literal> sentence about 5 seconds later, the
              <literal>$GPGSA</literal> sentence is added to the string (since no <literal>$GPGSA</literal> sentence was
              obviously received in this session), the updated string would be:
              <para><literal>
                $GPRMC,134526.92,V,,,,,,,030136,,,N*76&lt;CR&gt;&lt;LF&gt;$GPGGA,,,,,,0,00,0.5,,M,0.0001999,M,0.0000099,0000*45&lt;CR&gt;&lt;LF&gt;$GPGSA,A,1,,,,,,,,,,,,,1.1,0.5,1.0*34
              </literal></para>
              The manager may discard any cached sentences older than 30 seconds.
            </para>
            <para>
              This allows clients to read the latest positioning data as soon as
              possible after they start, even if the device is not providing
              frequent location data updates.
            </para>
          </listitem>
        </varlistentry>
        <varlistentry><term><link linkend="MM-MODEM-LOCATION-SOURCE-CDMA-BS:CAPS">MM_MODEM_LOCATION_SOURCE_CDMA_BS</link></term>
          <listitem>
            <para>
              Devices supporting this
              capability return a D-Bus dictionary (signature <literal>"a{sv}"</literal>) mapping well-known
              keys to values with defined formats.
            </para>
            <para>
              The allowed key/value pairs and their formats are:
            </para>
            <variablelist>
              <varlistentry><term><literal>"latitude"</literal></term>
                <listitem>
                  (Required) Latitude in Decimal Degrees (positive numbers mean N quadrasphere, negative mean S quadrasphere), given as a double value (signature <literal>"d"</literal>). e.g. <literal>38.889722</literal>, meaning 38d 53' 22" N.
                </listitem>
              </varlistentry>
              <varlistentry><term><literal>"longitude"</literal></term>
                <listitem>
                  (Required) Longitude in Decimal Degrees (positive numbers mean E quadrasphere, negative mean W quadrasphere), given as a double value (signature <literal>"d"</literal>). e.g. <literal>-77.008889</literal>, meaning 77d 0' 32" W.
                </listitem>
              </varlistentry>
            </variablelist>
          </listitem>
        </varlistentry>
        </variablelist>

        Since: 1.0
    -->
    <property name="Location" type="a{uv}" access="read" />

    <!--
        SuplServer:

        SUPL server configuration for A-GPS, given either as IP:PORT or FQDN:PORT.

        Since: 1.6
    -->
    <property name="SuplServer" type="s" access="read" />

    <!--
        AssistanceDataServers:

        URLs from where the user can download assistance data files to inject with
        <link linkend="gdbus-method-org-freedesktop-ModemManager1-Modem-Location.InjectAssistanceData">InjectAssistanceData()</link>.

        Since: 1.10
    -->
    <property name="AssistanceDataServers" type="as" access="read" />

    <!--
        GpsRefreshRate:

        Rate of refresh of the GPS information in the interface.

        Since: 1.6
    -->
    <property name="GpsRefreshRate" type="u" access="read" />

  </interface>
</node>
