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core: new `MMQmiPort' object

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This object encapsulates the usage of the `QmiDevice' coming from libqmi-glib.
This commit is contained in:
Aleksander Morgado
2012-06-26 14:12:44 +02:00
parent dc8d9dfdb9
commit 26d3c28e43
4 changed files with 280 additions and 2 deletions
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3
configure.ac
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@@ -71,7 +71,8 @@ PKG_CHECK_MODULES(MM,
gmodule-2.0
gobject-2.0
gio-2.0
gio-unix-2.0)
gio-unix-2.0
qmi-glib)
AC_SUBST(MM_CFLAGS)
AC_SUBST(MM_LIBS)

4
src/Makefile.am
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@@ -72,7 +72,9 @@ libserial_la_SOURCES = \
mm-qcdm-serial-port.c \
mm-qcdm-serial-port.h \
mm-gps-serial-port.c \
mm-gps-serial-port.h
mm-gps-serial-port.h \
mm-qmi-port.c \
mm-qmi-port.h
# Daemon specific enum types
DAEMON_ENUMS = \

216
src/mm-qmi-port.c Normal file
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@@ -0,0 +1,216 @@
/* -*- 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) 2012 Google, Inc.
*/
#include <stdio.h>
#include <stdlib.h>
#include <libqmi-glib.h>
#include <ModemManager.h>
#include <mm-errors-types.h>
#include "mm-qmi-port.h"
#include "mm-log.h"
G_DEFINE_TYPE (MMQmiPort, mm_qmi_port, MM_TYPE_PORT)
struct _MMQmiPortPrivate {
gboolean opening;
QmiDevice *qmi_device;
};
/*****************************************************************************/
typedef struct {
MMQmiPort *self;
GSimpleAsyncResult *result;
GCancellable *cancellable;
} PortOpenContext;
static void
port_open_context_complete_and_free (PortOpenContext *ctx)
{
g_simple_async_result_complete_in_idle (ctx->result);
if (ctx->cancellable)
g_object_unref (ctx->cancellable);
g_object_unref (ctx->result);
g_object_unref (ctx->self);
g_free (ctx);
}
gboolean
mm_qmi_port_open_finish (MMQmiPort *self,
GAsyncResult *res,
GError **error)
{
return !g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error);
}
static void
qmi_device_open_ready (QmiDevice *qmi_device,
GAsyncResult *res,
PortOpenContext *ctx)
{
GError *error = NULL;
/* Reset the opening flag */
ctx->self->priv->opening = FALSE;
if (!qmi_device_open_finish (qmi_device, res, &error)) {
g_clear_object (&ctx->self->priv->qmi_device);
g_simple_async_result_take_error (ctx->result, error);
} else
g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
port_open_context_complete_and_free (ctx);
}
static void
qmi_device_new_ready (GObject *unused,
GAsyncResult *res,
PortOpenContext *ctx)
{
GError *error = NULL;
ctx->self->priv->qmi_device = qmi_device_new_finish (res, &error);
if (!ctx->self->priv->qmi_device) {
g_simple_async_result_take_error (ctx->result, error);
port_open_context_complete_and_free (ctx);
return;
}
/* Now open the QMI device */
qmi_device_open (ctx->self->priv->qmi_device,
QMI_DEVICE_OPEN_FLAGS_VERSION_INFO,
10,
ctx->cancellable,
(GAsyncReadyCallback)qmi_device_open_ready,
ctx);
}
void
mm_qmi_port_open (MMQmiPort *self,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GFile *file;
gchar *fullpath;
PortOpenContext *ctx;
g_return_if_fail (MM_IS_QMI_PORT (self));
ctx = g_new0 (PortOpenContext, 1);
ctx->self = g_object_ref (self);
ctx->result = g_simple_async_result_new (G_OBJECT (self),
callback,
user_data,
mm_qmi_port_open);
ctx->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
if (self->priv->opening) {
g_simple_async_result_set_error (ctx->result,
MM_CORE_ERROR,
MM_CORE_ERROR_IN_PROGRESS,
"QMI device already being opened");
port_open_context_complete_and_free (ctx);
return;
}
if (self->priv->qmi_device) {
g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);
port_open_context_complete_and_free (ctx);
return;
}
fullpath = g_strdup_printf ("/dev/%s",
mm_port_get_device (MM_PORT (self)));
file = g_file_new_for_path (fullpath);
self->priv->opening = TRUE;
qmi_device_new (file,
ctx->cancellable,
(GAsyncReadyCallback)qmi_device_new_ready,
ctx);
g_free (fullpath);
g_object_unref (file);
}
gboolean
mm_qmi_port_is_open (MMQmiPort *self)
{
g_return_val_if_fail (MM_IS_QMI_PORT (self), FALSE);
return !!self->priv->qmi_device;
}
void
mm_qmi_port_close (MMQmiPort *self)
{
GError *error = NULL;
g_return_if_fail (MM_IS_QMI_PORT (self));
if (!self->priv->qmi_device)
return;
if (!qmi_device_close (self->priv->qmi_device, &error)) {
mm_warn ("Couldn't properly close QMI device: %s",
error->message);
g_error_free (error);
}
g_clear_object (&self->priv->qmi_device);
}
/*****************************************************************************/
MMQmiPort *
mm_qmi_port_new (const gchar *name)
{
return MM_QMI_PORT (g_object_new (MM_TYPE_QMI_PORT,
MM_PORT_DEVICE, name,
MM_PORT_SUBSYS, MM_PORT_SUBSYS_USB,
MM_PORT_TYPE, MM_PORT_TYPE_QMI,
NULL));
}
static void
mm_qmi_port_init (MMQmiPort *self)
{
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, MM_TYPE_QMI_PORT, MMQmiPortPrivate);
}
static void
dispose (GObject *object)
{
MMQmiPort *self = MM_QMI_PORT (object);
g_clear_object (&self->priv->qmi_device);
G_OBJECT_CLASS (mm_qmi_port_parent_class)->dispose (object);
}
static void
mm_qmi_port_class_init (MMQmiPortClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (object_class, sizeof (MMQmiPortPrivate));
/* Virtual methods */
object_class->dispose = dispose;
}

59
src/mm-qmi-port.h Normal file
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@@ -0,0 +1,59 @@
/* -*- 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) 2012 Google, Inc.
*/
#ifndef MM_QMI_PORT_H
#define MM_QMI_PORT_H
#include <glib.h>
#include <glib-object.h>
#include <gio/gio.h>
#include "mm-port.h"
#define MM_TYPE_QMI_PORT (mm_qmi_port_get_type ())
#define MM_QMI_PORT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), MM_TYPE_QMI_PORT, MMQmiPort))
#define MM_QMI_PORT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), MM_TYPE_QMI_PORT, MMQmiPortClass))
#define MM_IS_QMI_PORT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), MM_TYPE_QMI_PORT))
#define MM_IS_QMI_PORT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), MM_TYPE_QMI_PORT))
#define MM_QMI_PORT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), MM_TYPE_QMI_PORT, MMQmiPortClass))
typedef struct _MMQmiPort MMQmiPort;
typedef struct _MMQmiPortClass MMQmiPortClass;
typedef struct _MMQmiPortPrivate MMQmiPortPrivate;
struct _MMQmiPort {
MMPort parent;
MMQmiPortPrivate *priv;
};
struct _MMQmiPortClass {
MMPortClass parent;
};
GType mm_qmi_port_get_type (void);
MMQmiPort *mm_qmi_port_new (const gchar *name);
void mm_qmi_port_open (MMQmiPort *self,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
gboolean mm_qmi_port_open_finish (MMQmiPort *self,
GAsyncResult *res,
GError **error);
gboolean mm_qmi_port_is_open (MMQmiPort *self);
void mm_qmi_port_close (MMQmiPort *self);
#endif /* MM_QMI_PORT_H */