/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/*
 * libqmi-glib -- GLib/GIO based library to control QMI devices
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301 USA.
 *
 * Copyright (C) 2012 Aleksander Morgado <aleksander@lanedo.com>
 * Copyright (C) 2012 Dan Williams <dcbw@redhat.com>
 */

#ifndef _LIBQMI_GLIB_QMI_UTILS_H_
#define _LIBQMI_GLIB_QMI_UTILS_H_

#if !defined (__LIBQMI_GLIB_H_INSIDE__) && !defined (LIBQMI_GLIB_COMPILATION)
#error "Only <libqmi-glib.h> can be included directly."
#endif

#include <glib.h>

G_BEGIN_DECLS

/**
 * QmiEndian:
 * @QMI_ENDIAN_LITTLE: Little endian.
 * @QMI_ENDIAN_BIG: Big endian.
 *
 * Type of endianness
 */
typedef enum {
    QMI_ENDIAN_LITTLE = 0,
    QMI_ENDIAN_BIG    = 1
} QmiEndian;

/* Reading/Writing integer variables */

void qmi_utils_read_guint8_from_buffer  (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         guint8        *out);
void qmi_utils_read_gint8_from_buffer   (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         gint8         *out);

void qmi_utils_read_guint16_from_buffer (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         QmiEndian      endian,
                                         guint16       *out);
void qmi_utils_read_gint16_from_buffer  (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         QmiEndian      endian,
                                         gint16        *out);

void qmi_utils_read_guint32_from_buffer (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         QmiEndian      endian,
                                         guint32       *out);
void qmi_utils_read_gint32_from_buffer  (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         QmiEndian      endian,
                                         gint32        *out);

void qmi_utils_read_guint64_from_buffer (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         QmiEndian      endian,
                                         guint64       *out);
void qmi_utils_read_gint64_from_buffer  (const guint8 **buffer,
                                         guint16       *buffer_size,
                                         QmiEndian      endian,
                                         gint64        *out);

void qmi_utils_read_sized_guint_from_buffer (const guint8 **buffer,
                                             guint16       *buffer_size,
                                             guint          n_bytes,
                                             QmiEndian      endian,
                                             guint64       *out);

void qmi_utils_write_guint8_to_buffer (guint8  **buffer,
                                       guint16  *buffer_size,
                                       guint8   *in);
void qmi_utils_write_gint8_to_buffer  (guint8  **buffer,
                                       guint16  *buffer_size,
                                       gint8    *in);

void qmi_utils_write_guint16_to_buffer (guint8  **buffer,
                                        guint16  *buffer_size,
                                        QmiEndian endian,
                                        guint16  *in);
void qmi_utils_write_gint16_to_buffer  (guint8  **buffer,
                                        guint16  *buffer_size,
                                        QmiEndian endian,
                                        gint16   *in);

void qmi_utils_write_guint32_to_buffer (guint8  **buffer,
                                        guint16  *buffer_size,
                                        QmiEndian endian,
                                        guint32  *in);
void qmi_utils_write_gint32_to_buffer  (guint8  **buffer,
                                        guint16  *buffer_size,
                                        QmiEndian endian,
                                        gint32   *in);

void qmi_utils_write_guint64_to_buffer (guint8  **buffer,
                                        guint16  *buffer_size,
                                        QmiEndian endian,
                                        guint64  *in);
void qmi_utils_write_gint64_to_buffer  (guint8  **buffer,
                                        guint16  *buffer_size,
                                        QmiEndian endian,
                                        gint64   *in);

void qmi_utils_write_sized_guint_to_buffer (guint8  **buffer,
                                            guint16  *buffer_size,
                                            guint     n_bytes,
                                            QmiEndian endian,
                                            guint64  *in);

/* Reading/Writing string variables */

void qmi_utils_read_string_from_buffer (const guint8 **buffer,
                                        guint16       *buffer_size,
                                        guint8         length_prefix_size,
                                        guint16        max_size,
                                        gchar        **out);
void qmi_utils_write_string_to_buffer  (guint8      **buffer,
                                        guint16      *buffer_size,
                                        guint8        length_prefix_size,
                                        const gchar  *in);

void qmi_utils_read_fixed_size_string_from_buffer (const guint8 **buffer,
                                                   guint16       *buffer_size,
                                                   guint16        fixed_size,
                                                   gchar         *out);
void qmi_utils_write_fixed_size_string_to_buffer  (guint8      **buffer,
                                                   guint16      *buffer_size,
                                                   guint16       fixed_size,
                                                   const gchar  *in);

/* Enabling/Disabling traces */
gboolean qmi_utils_get_traces_enabled (void);
void     qmi_utils_set_traces_enabled (gboolean enabled);

/* Other private methods */

#if defined (LIBQMI_GLIB_COMPILATION)
G_GNUC_INTERNAL
gchar *__qmi_utils_str_hex (gconstpointer mem,
                            gsize size,
                            gchar delimiter);
#endif

G_END_DECLS

#endif /* _LIBQMI_GLIB_QMI_UTILS_H_ */