asynchronous and deferred port detection

Allow plugins to perform asynchronous port detection, and to defer port detection
until later.  This moves the prober bits into MMPluginBase so that all plugins
can take adavantage of it only when needed; the probing is not done at udev time.
Furthermore, plugins like Novatel can flip the secondary ports over the AT mode
through	deferred detection, by deferring the secondary ports until the main port
has been detected and AT$NWDMAT	has been sent.

This commit also finishes the port of the rest of the plugins (except mbm) over
to the new port detection methods and plugin API.
This commit is contained in:
Dan Williams
2009-06-28 14:05:05 -04:00
parent 112f2da19d
commit 6077763d90
47 changed files with 2972 additions and 2597 deletions

View File

@@ -1,15 +1,26 @@
/* -*- 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 Red Hat, Inc.
*/
#include <string.h>
#include <gmodule.h>
#include "mm-plugin-novatel.h"
#include "mm-modem-novatel-cdma.h"
#include "mm-modem-novatel-gsm.h"
#include "mm-generic-cdma.h"
static void plugin_init (MMPlugin *plugin_class);
G_DEFINE_TYPE_EXTENDED (MMPluginNovatel, mm_plugin_novatel, G_TYPE_OBJECT,
0, G_IMPLEMENT_INTERFACE (MM_TYPE_PLUGIN, plugin_init))
G_DEFINE_TYPE (MMPluginNovatel, mm_plugin_novatel, MM_TYPE_PLUGIN_BASE)
int mm_plugin_major_version = MM_PLUGIN_MAJOR_VERSION;
int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION;
@@ -17,158 +28,154 @@ int mm_plugin_minor_version = MM_PLUGIN_MINOR_VERSION;
G_MODULE_EXPORT MMPlugin *
mm_plugin_create (void)
{
return MM_PLUGIN (g_object_new (MM_TYPE_PLUGIN_NOVATEL, NULL));
return MM_PLUGIN (g_object_new (MM_TYPE_PLUGIN_NOVATEL,
MM_PLUGIN_BASE_NAME, "Novatel",
NULL));
}
/*****************************************************************************/
static const char *
get_name (MMPlugin *plugin)
#define CAP_CDMA (MM_PLUGIN_BASE_PORT_CAP_IS707_A | \
MM_PLUGIN_BASE_PORT_CAP_IS707_P | \
MM_PLUGIN_BASE_PORT_CAP_IS856 | \
MM_PLUGIN_BASE_PORT_CAP_IS856_A)
static guint32
get_level_for_capabilities (guint32 capabilities)
{
return "Novatel";
}
static char **
list_supported_udis (MMPlugin *plugin, LibHalContext *hal_ctx)
{
char **supported = NULL;
char **devices;
int num_devices;
int i;
devices = libhal_find_device_by_capability (hal_ctx, "modem", &num_devices, NULL);
if (devices) {
GPtrArray *array;
array = g_ptr_array_new ();
for (i = 0; i < num_devices; i++) {
char *udi = devices[i];
if (mm_plugin_supports_udi (plugin, hal_ctx, udi))
g_ptr_array_add (array, g_strdup (udi));
}
if (array->len > 0) {
g_ptr_array_add (array, NULL);
supported = (char **) g_ptr_array_free (array, FALSE);
} else
g_ptr_array_free (array, TRUE);
}
g_strfreev (devices);
return supported;
if (capabilities & MM_PLUGIN_BASE_PORT_CAP_GSM)
return 10;
if (capabilities & CAP_CDMA)
return 10;
return 0;
}
static void
is_novatel_modem (LibHalContext *hal_ctx,
const char *udi,
gboolean *is_novatel_gsm,
gboolean *is_novatel_cdma)
probe_result (MMPluginBase *base,
MMPluginBaseSupportsTask *task,
guint32 capabilities,
gpointer user_data)
{
char **capabilities;
char **iter;
mm_plugin_base_supports_task_complete (task, get_level_for_capabilities (capabilities));
}
*is_novatel_gsm = *is_novatel_cdma = FALSE;
static MMPluginSupportsResult
supports_port (MMPluginBase *base,
MMModem *existing,
MMPluginBaseSupportsTask *task)
{
GUdevDevice *port;
guint32 cached = 0, level;
const char *subsys, *name, *driver;
guint16 vendor = 0;
capabilities = libhal_device_get_property_strlist (hal_ctx, udi, "modem.command_sets", NULL);
for (iter = capabilities; iter && *iter && !*is_novatel_gsm && !*is_novatel_cdma; iter++) {
char *parent_udi;
/* Can't do anything with non-serial ports */
port = mm_plugin_base_supports_task_get_port (task);
if (strcmp (g_udev_device_get_subsystem (port), "tty"))
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
parent_udi = libhal_device_get_property_string (hal_ctx, udi, "info.parent", NULL);
if (parent_udi) {
int vendor;
subsys = g_udev_device_get_subsystem (port);
name = g_udev_device_get_name (port);
vendor = libhal_device_get_property_int (hal_ctx, parent_udi, "usb.vendor_id", NULL);
if (vendor == 0x1410) {
if (!strcmp (*iter, "GSM-07.07")) {
*is_novatel_gsm = TRUE;
} else if (!strcmp (*iter, "IS-707-A")) {
*is_novatel_cdma = TRUE;
}
}
if (!mm_plugin_base_get_device_ids (base, subsys, name, &vendor, NULL))
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
libhal_free_string (parent_udi);
driver = mm_plugin_base_supports_task_get_driver (task);
if (!driver || (strcmp (driver, "option1") && strcmp (driver, "option")))
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
if (vendor != 0x1410 && vendor != 0x413c)
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
if (mm_plugin_base_get_cached_port_capabilities (base, port, &cached)) {
level = get_level_for_capabilities (cached);
if (level) {
mm_plugin_base_supports_task_complete (task, level);
return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
}
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
}
g_strfreev (capabilities);
}
/* Otherwise kick off a probe */
if (mm_plugin_base_probe_port (base, task, NULL))
return MM_PLUGIN_SUPPORTS_PORT_IN_PROGRESS;
static gboolean
supports_udi (MMPlugin *plugin, LibHalContext *hal_ctx, const char *udi)
{
gboolean is_novatel_gsm = FALSE;
gboolean is_novatel_cdma = FALSE;
is_novatel_modem (hal_ctx, udi, &is_novatel_gsm, &is_novatel_cdma);
return is_novatel_gsm || is_novatel_cdma;
}
static char *
get_driver_name (LibHalContext *ctx, const char *udi)
{
char *parent_udi;
char *driver = NULL;
parent_udi = libhal_device_get_property_string (ctx, udi, "info.parent", NULL);
if (parent_udi) {
driver = libhal_device_get_property_string (ctx, parent_udi, "info.linux.driver", NULL);
libhal_free_string (parent_udi);
}
return driver;
return MM_PLUGIN_SUPPORTS_PORT_UNSUPPORTED;
}
static MMModem *
create_modem (MMPlugin *plugin, LibHalContext *hal_ctx, const char *udi)
grab_port (MMPluginBase *base,
MMModem *existing,
MMPluginBaseSupportsTask *task,
GError **error)
{
char *data_device;
char *driver;
MMModem *modem;
gboolean is_novatel_gsm = FALSE;
gboolean is_novatel_cdma = FALSE;
GUdevDevice *port = NULL, *physdev = NULL;
MMModem *modem = NULL;
const char *name, *subsys, *devfile, *sysfs_path;
guint32 caps;
is_novatel_modem (hal_ctx, udi, &is_novatel_gsm, &is_novatel_cdma);
g_return_val_if_fail (!is_novatel_gsm && !is_novatel_cdma, NULL);
port = mm_plugin_base_supports_task_get_port (task);
g_assert (port);
data_device = libhal_device_get_property_string (hal_ctx, udi, "serial.device", NULL);
g_return_val_if_fail (data_device != NULL, NULL);
devfile = g_udev_device_get_device_file (port);
if (!devfile) {
g_set_error (error, 0, 0, "Could not get port's sysfs file.");
return NULL;
}
driver = get_driver_name (hal_ctx, udi);
g_return_val_if_fail (driver != NULL, NULL);
physdev = mm_plugin_base_supports_task_get_physdev (task);
g_assert (physdev);
sysfs_path = g_udev_device_get_sysfs_path (physdev);
if (!sysfs_path) {
g_set_error (error, 0, 0, "Could not get port's physical device sysfs path.");
return NULL;
}
if (is_novatel_gsm)
modem = MM_MODEM (mm_modem_novatel_gsm_new (data_device, driver));
else
modem = MM_MODEM (mm_modem_novatel_cdma_new (data_device, driver));
subsys = g_udev_device_get_subsystem (port);
name = g_udev_device_get_name (port);
libhal_free_string (data_device);
libhal_free_string (driver);
caps = mm_plugin_base_supports_task_get_probed_capabilities (task);
if (!existing) {
if (caps & MM_PLUGIN_BASE_PORT_CAP_GSM) {
modem = mm_modem_novatel_gsm_new (sysfs_path,
mm_plugin_base_supports_task_get_driver (task),
mm_plugin_get_name (MM_PLUGIN (base)));
} else if (caps & CAP_CDMA) {
modem = mm_generic_cdma_new (sysfs_path,
mm_plugin_base_supports_task_get_driver (task),
mm_plugin_get_name (MM_PLUGIN (base)));
}
if (modem) {
if (!mm_modem_grab_port (modem, subsys, name, NULL, error)) {
g_object_unref (modem);
return NULL;
}
}
} else {
if (caps & (MM_PLUGIN_BASE_PORT_CAP_GSM | CAP_CDMA)) {
modem = existing;
if (!mm_modem_grab_port (modem, subsys, name, NULL, error))
return NULL;
}
}
return modem;
}
/*****************************************************************************/
static void
plugin_init (MMPlugin *plugin_class)
{
/* interface implementation */
plugin_class->get_name = get_name;
plugin_class->list_supported_udis = list_supported_udis;
plugin_class->supports_udi = supports_udi;
plugin_class->create_modem = create_modem;
}
static void
mm_plugin_novatel_init (MMPluginNovatel *self)
{
g_signal_connect (self, "probe-result", G_CALLBACK (probe_result), NULL);
}
static void
mm_plugin_novatel_class_init (MMPluginNovatelClass *klass)
{
MMPluginBaseClass *pb_class = MM_PLUGIN_BASE_CLASS (klass);
pb_class->supports_port = supports_port;
pb_class->grab_port = grab_port;
}