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4192 mejdrech 1 
/*
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 * Copyright (c) 2009 Lukas Mejdrech
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup netif
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 *  @{
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 */
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/** @file
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 *  Network interface module interface.
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 *  The interface has to be implemented by each network interface module.
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 *  The interface is used by the network interface module skeleton.
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 */
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#ifndef __NET_NETIF_MODULE_H__
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#define __NET_NETIF_MODULE_H__
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#include <ipc/ipc.h>
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#include <ipc/services.h>
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#include "../structures/measured_strings.h"
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#include "../structures/packet/packet.h"
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#include "../include/device.h"
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/** Initializes the specific module.
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 */
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int netif_initialize( void );
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/** Probes the existence of the device.
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 *  @param device_id The device identifier. Input parameter.
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 *  @param irq The device interrupt number. Input parameter.
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 *  @param io The device input/output address. Input parameter.
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 *  @returns EOK on success.
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 *  @returns Other error codes as defined for the find_device() function.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_probe_message( device_id_t device_id, int irq, int io );
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/** Sends the packet queue.
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 *  @param device_id The device identifier. Input parameter.
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 *  @param packet The packet queue. Input parameter.
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 *  @param sender The sending module service. Input parameter.
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 *  @returns EOK on success.
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 *  @returns EFORWARD if the device is not active (in the NETIF_ACTIVE state).
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 *  @returns Other error codes as defined for the find_device() function.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_send_message( device_id_t device_id, packet_t packet, services_t sender );
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/** Starts the device.
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 *  @param device The device structure. Input parameter.
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 *  @returns EOK on success.
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 *  @returns Other error codes as defined for the find_device() function.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_start_message( device_ref device );
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/** Stops the device.
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 *  @param device The device structure. Input parameter.
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 *  @returns EOK on success.
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 *  @returns Other error codes as defined for the find_device() function.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_stop_message( device_ref device );
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/** Returns the device local hardware address.
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 *  @param device_id The device identifier. Input parameter.
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 *  @param address The device local hardware address. Output parameter.
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 *  @returns EOK on success.
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 *  @returns EBADMEM if the address parameter is NULL.
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 *  @returns ENOENT if there no such device.
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 *  @returns Other error codes as defined for the find_device() function.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_get_addr_message( device_id_t device_id, measured_string_ref address );
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/** Processes the netif driver specific message.
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 *  This function is called for uncommon messages received by the netif skeleton.
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 *  @param callid The message identifier. Input parameter.
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 *  @param call The message parameters. Input parameter.
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 *  @param answer The message answer parameters. Output parameter.
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 *  @param answer_count The last parameter for the actual answer in the answer parameter. Output parameter.
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 *  @returns EOK on success.
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 *  @returns ENOTSUP if the message is not known.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_specific_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
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/** Returns the device usage statistics.
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 *  @param device_id The device identifier. Input parameter.
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 *  @param stats The device usage statistics. Output parameter.
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 *  @returns EOK on success.
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 *  @returns Other error codes as defined for the find_device() function.
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 *  @returns Other error codes as defined for the specific module message implementation.
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 */
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int netif_get_device_stats( device_id_t device_id, device_stats_ref stats );
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#endif
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/** @}
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 */