plugins/simtech/mm-plugin-simtech.c

/* -*- 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) 2008 - 2009 Novell, Inc.
 * Copyright (C) 2009 - 2012 Red Hat, Inc.
 * Copyright (C) 2012 Aleksander Morgado <aleksander@gnu.org>
 */

#include <string.h>
#include <gmodule.h>
#include <libmm-common.h>

#include "mm-plugin-simtech.h"
#include "mm-broadband-modem-simtech.h"

G_DEFINE_TYPE (MMPluginSimtech, mm_plugin_simtech, MM_TYPE_PLUGIN_BASE)

int mm_plugin_major_version = MM_PLUGIN_MAJOR_VERSION;
int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION;


/*****************************************************************************/

static MMBaseModem *
grab_port (MMPluginBase *base,
           MMBaseModem *existing,
           MMPortProbe *probe,
           GError **error)
{
    MMBaseModem *modem = NULL;
    GUdevDevice *port;
    MMPortType ptype;
    const gchar *name, *subsys;
    guint16 vendor = 0, product = 0;
    MMAtPortFlag pflags = MM_AT_PORT_FLAG_NONE;

    /* The Simtech plugin cannot do anything with non-AT non-QCDM ports */
    if (!mm_port_probe_is_at (probe) &&
        !mm_port_probe_is_qcdm (probe)) {
        g_set_error_literal (error,
                             MM_CORE_ERROR,
                             MM_CORE_ERROR_UNSUPPORTED,
                             "Ignoring non-AT non-QCDM port");
        return NULL;
    }

    port = mm_port_probe_get_port (probe); /* transfer none */
    subsys = mm_port_probe_get_port_subsys (probe);
    name = mm_port_probe_get_port_name (probe);

    if (!mm_plugin_base_get_device_ids (base, subsys, name, &vendor, &product)) {
        g_set_error_literal (error,
                             MM_CORE_ERROR,
                             MM_CORE_ERROR_FAILED,
                             "Could not get modem product ID");
        return NULL;
    }

    /* Look for port type hints; just probing can't distinguish which port should
     * be the data/primary port on these devices.  We have to tag them based on
     * what the Windows .INF files say the port layout should be.
     */
    if (g_udev_device_get_property_as_boolean (port, "ID_MM_SIMTECH_PORT_TYPE_MODEM"))
        pflags = MM_AT_PORT_FLAG_PRIMARY;
    else if (g_udev_device_get_property_as_boolean (port, "ID_MM_SIMTECH_PORT_TYPE_AUX"))
        pflags = MM_AT_PORT_FLAG_SECONDARY;

    /* If the port was tagged by the udev rules but isn't a primary or secondary,
     * then ignore it to guard against race conditions if a device just happens
     * to show up with more than two AT-capable ports.
     */
    if (pflags == MM_AT_PORT_FLAG_NONE &&
        g_udev_device_get_property_as_boolean (port, "ID_MM_SIMTECH_TAGGED"))
        ptype = MM_PORT_TYPE_IGNORED;
    else
        ptype = mm_port_probe_get_port_type (probe);

    /* If this is the first port being grabbed, create a new modem object */
    if (!existing)
        modem = MM_BASE_MODEM (mm_broadband_modem_simtech_new (mm_port_probe_get_port_physdev (probe),
                                                               mm_port_probe_get_port_driver (probe),
                                                               mm_plugin_get_name (MM_PLUGIN (base)),
                                                               vendor,
                                                               product));

    if (!mm_base_modem_grab_port (existing ? existing : modem,
                                  subsys,
                                  name,
                                  ptype,
                                  pflags,
                                  error)) {
        if (modem)
            g_object_unref (modem);
        return NULL;
    }

    return existing ? existing : modem;
}

/*****************************************************************************/

G_MODULE_EXPORT MMPlugin *
mm_plugin_create (void)
{
    static const gchar *subsystems[] = { "tty", NULL };
    static const guint16 vendor_ids[] = { 0x1e0e, /* A-Link (for now) */
                                          0 };

    return MM_PLUGIN (
        g_object_new (MM_TYPE_PLUGIN_SIMTECH,
                      MM_PLUGIN_BASE_NAME, "SimTech",
                      MM_PLUGIN_BASE_ALLOWED_SUBSYSTEMS, subsystems,
                      MM_PLUGIN_BASE_ALLOWED_VENDOR_IDS, vendor_ids,
                      MM_PLUGIN_BASE_ALLOWED_AT, TRUE,
                      MM_PLUGIN_BASE_ALLOWED_QCDM, TRUE,
                      NULL));
}

static void
mm_plugin_simtech_init (MMPluginSimtech *self)
{
}

static void
mm_plugin_simtech_class_init (MMPluginSimtechClass *klass)
{
    MMPluginBaseClass *pb_class = MM_PLUGIN_BASE_CLASS (klass);

    pb_class->grab_port = grab_port;
}