diff options
Diffstat (limited to 'plugins/mm-plugin-generic.c')
| -rw-r--r-- | plugins/mm-plugin-generic.c | 350 |
1 files changed, 350 insertions, 0 deletions
diff --git a/plugins/mm-plugin-generic.c b/plugins/mm-plugin-generic.c new file mode 100644 index 00000000..f504a6ee --- /dev/null +++ b/plugins/mm-plugin-generic.c @@ -0,0 +1,350 @@ +/* -*- 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 Dan Williams <dcbw@redhat.com> + */ + +#include <string.h> +#include <termios.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <getopt.h> +#include <time.h> + +#include <gmodule.h> +#define G_UDEV_API_IS_SUBJECT_TO_CHANGE +#include <gudev/gudev.h> + +#include "mm-plugin-generic.h" +#include "mm-generic-gsm.h" +#include "mm-generic-cdma.h" +#include "mm-serial-port.h" + +static void plugin_init (MMPlugin *plugin_class); + +G_DEFINE_TYPE_EXTENDED (MMPluginGeneric, mm_plugin_generic, G_TYPE_OBJECT, + 0, G_IMPLEMENT_INTERFACE (MM_TYPE_PLUGIN, plugin_init)) + +int mm_plugin_major_version = MM_PLUGIN_MAJOR_VERSION; +int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION; + +#define MM_PLUGIN_GENERIC_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), MM_TYPE_PLUGIN_GENERIC, MMPluginGenericPrivate)) + +typedef struct { + GUdevClient *client; + GHashTable *modems; +} MMPluginGenericPrivate; + + +G_MODULE_EXPORT MMPlugin * +mm_plugin_create (void) +{ + return MM_PLUGIN (g_object_new (MM_TYPE_PLUGIN_GENERIC, NULL)); +} + +/*****************************************************************************/ + +static char * +get_driver_name (GUdevDevice *device) +{ + GUdevDevice *parent = NULL; + const char *driver; + char *ret; + + driver = g_udev_device_get_driver (device); + if (!driver) { + parent = g_udev_device_get_parent (device); + if (parent) + driver = g_udev_device_get_driver (parent); + } + + if (driver) + ret = g_strdup (driver); + if (parent) + g_object_unref (parent); + + return ret; +} + +static GUdevDevice * +find_physical_device (GUdevDevice *child) +{ + GUdevDevice *iter, *old = NULL; + const char *bus, *type; + + g_return_val_if_fail (child != NULL, NULL); + + bus = g_udev_device_get_property (child, "ID_BUS"); + if (!bus) + return NULL; + + if (!strcmp (bus, "usb")) { + /* Walk the parents to find the 'usb_device' for this device. */ + iter = g_object_ref (child); + while (iter) { + type = g_udev_device_get_devtype (iter); + if (type && !strcmp (type, "usb_device")) + return iter; + + old = iter; + iter = g_udev_device_get_parent (old); + g_object_unref (old); + } + g_object_unref (child); + } else if (!strcmp (bus, "pci")) { + return g_udev_device_get_parent (child); + } + + // FIXME: pci and pcmcia/cardbus? (like Sierra 850/860) + return NULL; +} + +#define PROP_GSM "ID_MM_MODEM_GSM" +#define PROP_CDMA "ID_MM_MODEM_IS707_A" +#define PROP_EVDO1 "ID_MM_MODEM_IS856" +#define PROP_EVDOA "ID_MM_MODEM_IS856_A" + +static GUdevDevice * +get_device_type (MMPlugin *plugin, + const char *subsys, + const char *name, + gboolean *gsm, + gboolean *cdma) +{ + MMPluginGenericPrivate *priv = MM_PLUGIN_GENERIC_GET_PRIVATE (plugin); + GUdevDevice *device; + + g_return_val_if_fail (plugin != NULL, NULL); + g_return_val_if_fail (MM_IS_PLUGIN (plugin), NULL); + g_return_val_if_fail (subsys != NULL, NULL); + g_return_val_if_fail (name != NULL, NULL); + + device = g_udev_client_query_by_subsystem_and_name (priv->client, subsys, name); + if (!device) + return NULL; + + if (g_udev_device_get_property_as_boolean (device, PROP_GSM)) + *gsm = TRUE; + if ( g_udev_device_get_property_as_boolean (device, PROP_CDMA) + || g_udev_device_get_property_as_boolean (device, PROP_EVDO1) + || g_udev_device_get_property_as_boolean (device, PROP_EVDOA)) + *cdma = TRUE; + + return device; +} + +static guint32 +supports_port (MMPlugin *plugin, + const char *subsys, + const char *name) +{ + GUdevDevice *device, *physdev = NULL; + gboolean gsm = FALSE, cdma = FALSE; + guint32 level = 0; + + g_return_val_if_fail (plugin != NULL, 0); + g_return_val_if_fail (MM_IS_PLUGIN (plugin), 0); + g_return_val_if_fail (subsys != NULL, 0); + g_return_val_if_fail (name != NULL, 0); + + /* Can't do anything with non-serial ports */ + if (strcmp (subsys, "tty")) + return 0; + + device = get_device_type (plugin, subsys, name, &gsm, &cdma); + if (!device) + return 0; + + if (!gsm && !cdma) + goto out; + + physdev = find_physical_device (device); + if (!physdev) + goto out; + g_object_unref (physdev); + level = 5; + +out: + return level; +} + +typedef struct { + char *key; + gpointer modem; +} FindInfo; + +static void +find_modem (gpointer key, gpointer data, gpointer user_data) +{ + FindInfo *info = user_data; + + if (!info->key && data == info->modem) + info->key = g_strdup ((const char *) key); +} + +static void +modem_destroyed (gpointer data, GObject *modem) +{ + MMPluginGeneric *self = MM_PLUGIN_GENERIC (data); + MMPluginGenericPrivate *priv = MM_PLUGIN_GENERIC_GET_PRIVATE (self); + FindInfo info = { NULL, modem }; + + g_hash_table_foreach (priv->modems, find_modem, &info); + if (info.key) + g_hash_table_remove (priv->modems, info.key); + g_free (info.key); +} + +static MMModem * +grab_port (MMPlugin *plugin, + const char *subsys, + const char *name, + GError **error) +{ + MMPluginGeneric *self = MM_PLUGIN_GENERIC (plugin); + MMPluginGenericPrivate *priv = MM_PLUGIN_GENERIC_GET_PRIVATE (plugin); + GUdevDevice *device = NULL, *physdev = NULL; + const char *devfile, *sysfs_path; + char *driver = NULL; + MMModem *modem = NULL; + gboolean gsm = FALSE, cdma = FALSE; + + g_return_val_if_fail (subsys != NULL, NULL); + g_return_val_if_fail (name != NULL, NULL); + + /* Can't do anything with non-serial ports */ + if (strcmp (subsys, "tty")) + return NULL; + + device = get_device_type (plugin, subsys, name, &gsm, &cdma); + if (!device) { + g_set_error (error, 0, 0, "Could not get port's udev device."); + return NULL; + } + + if (!gsm && !cdma) { + g_set_error (error, 0, 0, "Modem unsupported (not GSM or CDMA)."); + goto out; + } + + physdev = find_physical_device (device); + if (!physdev) { + g_set_error (error, 0, 0, "Could not get ports's physical device."); + goto out; + } + + devfile = g_udev_device_get_device_file (device); + if (!devfile) { + g_set_error (error, 0, 0, "Could not get port's sysfs file."); + goto out; + } + + driver = get_driver_name (device); + if (!devfile) { + g_set_error (error, 0, 0, "Could not get port's driver name."); + goto out; + } + + sysfs_path = g_udev_device_get_sysfs_path (physdev); + if (!devfile) { + g_set_error (error, 0, 0, "Could not get port's physical device sysfs path."); + goto out; + } + + modem = g_hash_table_lookup (priv->modems, sysfs_path); + if (!modem) { + if (gsm) { + modem = mm_generic_gsm_new (sysfs_path, + driver, + mm_plugin_get_name (plugin)); + } else if (cdma) { + modem = mm_generic_cdma_new (sysfs_path, + driver, + mm_plugin_get_name (plugin)); + } + + if (modem) { + if (!mm_modem_grab_port (modem, subsys, name, error)) { + g_object_unref (modem); + modem = NULL; + } + } + + if (modem) { + g_object_weak_ref (G_OBJECT (modem), modem_destroyed, self); + g_hash_table_insert (priv->modems, g_strdup (sysfs_path), modem); + } + } else { + if (gsm || cdma) { + if (!mm_modem_grab_port (modem, subsys, name, error)) + modem = NULL; + } + } + +out: + g_free (driver); + g_object_unref (device); + g_object_unref (physdev); + return modem; +} + +static const char * +get_name (MMPlugin *plugin) +{ + return "Generic"; +} + +/*****************************************************************************/ + +static void +plugin_init (MMPlugin *plugin_class) +{ + /* interface implementation */ + plugin_class->get_name = get_name; + plugin_class->supports_port = supports_port; + plugin_class->grab_port = grab_port; +} + +static void +mm_plugin_generic_init (MMPluginGeneric *self) +{ + MMPluginGenericPrivate *priv = MM_PLUGIN_GENERIC_GET_PRIVATE (self); + const char *subsys[2] = { "tty", NULL }; + + priv->modems = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL); + + priv->client = g_udev_client_new (subsys); +} + +static void +dispose (GObject *object) +{ + MMPluginGenericPrivate *priv = MM_PLUGIN_GENERIC_GET_PRIVATE (object); + + g_hash_table_destroy (priv->modems); + g_object_unref (priv->client); +} + +static void +mm_plugin_generic_class_init (MMPluginGenericClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + g_type_class_add_private (object_class, sizeof (MMPluginGenericPrivate)); + + object_class->dispose = dispose; +} + |