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/* -*- 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>
#define _LIBMM_INSIDE_MM
#include <libmm-glib.h>
#include "mm-log-object.h"
#include "mm-modem-helpers.h"
#include "mm-plugin-common.h"
#include "mm-broadband-modem-longcheer.h"
#define MM_TYPE_PLUGIN_LONGCHEER mm_plugin_longcheer_get_type ()
MM_DEFINE_PLUGIN (LONGCHEER, longcheer, Longcheer)
/*****************************************************************************/
/* Custom init */
typedef struct {
MMPortSerialAt *port;
guint retries;
} LongcheerCustomInitContext;
static void
longcheer_custom_init_context_free (LongcheerCustomInitContext *ctx)
{
g_object_unref (ctx->port);
g_slice_free (LongcheerCustomInitContext, ctx);
}
static gboolean
longcheer_custom_init_finish (MMPortProbe *probe,
GAsyncResult *result,
GError **error)
{
return g_task_propagate_boolean (G_TASK (result), error);
}
static void longcheer_custom_init_step (GTask *task);
static void
gmr_ready (MMPortSerialAt *port,
GAsyncResult *res,
GTask *task)
{
MMPortProbe *probe;
const gchar *p;
g_autofree gchar *response = NULL;
probe = g_task_get_source_object (task);
response = mm_port_serial_at_command_finish (port, res, NULL);
if (!response) {
mm_obj_dbg (probe, "retrying custom init step...");
longcheer_custom_init_step (task);
return;
}
/* Note the lack of a ':' on the GMR; the X200 doesn't send one */
p = mm_strip_tag (response, "AT+GMR");
if (p && *p == 'L') {
/* X200 modems have a GMR firmware revision that starts with 'L', and
* as far as I can tell X060s devices have a revision starting with 'C'.
* So use that to determine if the device is an X200, which this plugin
* does not support since it uses a different chipset even though the
* X060s and the X200 have the exact same USB VID and PID.
*/
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_UNSUPPORTED,
"X200 cannot be supported with the Longcheer plugin");
} else {
mm_obj_dbg (probe, "device is not a X200");
g_task_return_boolean (task, TRUE);
}
g_object_unref (task);
}
static void
longcheer_custom_init_step (GTask *task)
{
MMPortProbe *probe;
LongcheerCustomInitContext *ctx;
GCancellable *cancellable;
probe = g_task_get_source_object (task);
ctx = g_task_get_task_data (task);
cancellable = g_task_get_cancellable (task);
/* If cancelled, end */
if (g_cancellable_is_cancelled (cancellable)) {
mm_obj_dbg (probe, "no need to keep on running custom init");
g_task_return_boolean (task, TRUE);
g_object_unref (task);
return;
}
if (ctx->retries == 0) {
/* In this case, we need the AT command result to decide whether we can
* support this modem or not, so really fail if we didn't get it. */
g_task_return_new_error (task,
MM_CORE_ERROR,
MM_CORE_ERROR_FAILED,
"Couldn't get device revision information");
g_object_unref (task);
return;
}
ctx->retries--;
mm_port_serial_at_command (
ctx->port,
"AT+GMR",
3,
FALSE, /* raw */
FALSE, /* allow_cached */
cancellable,
(GAsyncReadyCallback)gmr_ready,
task);
}
static void
longcheer_custom_init (MMPortProbe *probe,
MMPortSerialAt *port,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
MMDevice *device;
LongcheerCustomInitContext *ctx;
GTask *task;
ctx = g_slice_new (LongcheerCustomInitContext);
ctx->port = g_object_ref (port);
ctx->retries = 3;
task = g_task_new (probe, cancellable, callback, user_data);
/* Clears the check-cancellable flag of the task as we expect the task to
* return TRUE upon cancellation.
*/
g_task_set_check_cancellable (task, FALSE);
g_task_set_task_data (task, ctx, (GDestroyNotify)longcheer_custom_init_context_free);
/* TCT/Alcatel in their infinite wisdom assigned the same USB VID/PID to
* the x060s (Longcheer firmware) and the x200 (something else) and thus
* we can't tell them apart via udev rules. Worse, they both report the
* same +GMM and +GMI, so we're left with just +GMR which is a sketchy way
* to tell modems apart. We can't really use Longcheer-specific commands
* like AT+MODODR or AT+PSRAT because we're not sure if they work when the
* SIM PIN has not been entered yet; many modems have a limited command
* parser before the SIM is unlocked.
*/
device = mm_port_probe_peek_device (probe);
if (mm_device_get_vendor (device) != 0x1bbb ||
mm_device_get_product (device) != 0x0000) {
/* If not exactly this vendor/product, just skip */
g_task_return_boolean (task, TRUE);
g_object_unref (task);
return;
}
longcheer_custom_init_step (task);
}
/*****************************************************************************/
static MMBaseModem *
create_modem (MMPlugin *self,
const gchar *uid,
const gchar **drivers,
guint16 vendor,
guint16 product,
guint16 subsystem_vendor,
GList *probes,
GError **error)
{
return MM_BASE_MODEM (mm_broadband_modem_longcheer_new (uid,
drivers,
mm_plugin_get_name (self),
vendor,
product));
}
/*****************************************************************************/
MM_PLUGIN_NAMED_CREATOR_SCOPE MMPlugin *
mm_plugin_create_longcheer (void)
{
static const gchar *subsystems[] = { "tty", NULL };
/* Vendors: Longcheer and TAMobile */
static const guint16 vendor_ids[] = { 0x1c9e, 0x1bbb, 0 };
/* Some TAMobile devices are different chipsets and should be handled
* by other plugins, so only handle LONGCHEER tagged devices here.
*/
static const gchar *udev_tags[] = {
"ID_MM_LONGCHEER_TAGGED",
NULL
};
static const MMAsyncMethod custom_init = {
.async = G_CALLBACK (longcheer_custom_init),
.finish = G_CALLBACK (longcheer_custom_init_finish),
};
return MM_PLUGIN (
g_object_new (MM_TYPE_PLUGIN_LONGCHEER,
MM_PLUGIN_NAME, MM_MODULE_NAME,
MM_PLUGIN_ALLOWED_SUBSYSTEMS, subsystems,
MM_PLUGIN_ALLOWED_VENDOR_IDS, vendor_ids,
MM_PLUGIN_ALLOWED_AT, TRUE,
MM_PLUGIN_ALLOWED_UDEV_TAGS, udev_tags,
MM_PLUGIN_CUSTOM_INIT, &custom_init,
NULL));
}
static void
mm_plugin_longcheer_init (MMPluginLongcheer *self)
{
}
static void
mm_plugin_longcheer_class_init (MMPluginLongcheerClass *klass)
{
MMPluginClass *plugin_class = MM_PLUGIN_CLASS (klass);
plugin_class->create_modem = create_modem;
}
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