Subversion Repositories HelenOS

/*
 * Copyright (c) 2008 Lukas Mejdrech
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup net
 * @{
 */

/** @file
 */

#include <async.h>
#include <stdio.h>

#include <ipc/ipc.h>
#include <ipc/services.h>
//#include <sys/mman.h>

#include "../err.h"
#include "../messages.h"
#include "../modules.h"
#include "../packet.h"

#include "device.h"
#include "netif.h"

#define IPC_GET_DEVICE( call )      ( device_id_t ) IPC_GET_ARG1( * call )
#define IPC_GET_IRQ( call )     ( int ) IPC_GET_ARG2( * call )
#define IPC_GET_IO( call )      ( int ) IPC_GET_ARG3( * call )
#define IPC_GET_PHONE( call )       ( int ) IPC_GET_ARG5( * call )

extern netif_globals_t netif_globals;

extern int  initialize( void );
extern int  probe_auto_message( void );
extern int  probe_message( device_id_t device_id, int irq, int io );
extern int  send_message( device_id_t device_id, packet_t packet );
extern int  start_message( device_id_t device_id );
extern int  stop_message( device_id_t device_id );

DEVICE_MAP_IMPLEMENT( device_map, device_t )

int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
int netif_start_module( async_client_conn_t client_connection );
int register_message( device_id_t device_id, int phone );
int get_device_stats( device_id_t device_id, device_stats_ref * stats );

int find_device( device_id_t device_id, device_ref * device ){
    * device = device_map_find( & netif_globals.device_map, device_id );
    if( ! * device ) return ENOENT;
    if(( ** device ).state == NETIF_NULL ) return EPERM;
    return EOK;
}

int get_device_stats( device_id_t device_id, device_stats_ref * stats ){
    ERROR_DECLARE;

    device_ref  device;

    if( ! stats ) return EINVAL;
    ERROR_PROPAGATE( find_device( device_id, & device ));
    * stats = & device->stats;
    return EOK;
}

void null_device_stats( device_stats_ref stats ){
    memset( stats, 0, sizeof( device_stats_t ));
/*  stats->rx_packets = 0;
    stats->tx_packets = 0;
    stats->rx_bytes = 0;
    stats->tx_bytes = 0;
    stats->rx_errors = 0;
    stats->tx_errors = 0;
    stats->rx_dropped = 0;
    stats->tx_dropped = 0;
    stats->multicast = 0;
    stats->collisions = 0;
    stats->rx_length_errors = 0;
    stats->rx_over_errors = 0;
    stats->rx_crc_errors = 0;
    stats->rx_frame_errors = 0;
    stats->rx_fifo_errors = 0;
    stats->rx_missed_errors = 0;
    stats->tx_aborted_errors = 0;
    stats->tx_carrier_errors = 0;
    stats->tx_fifo_errors = 0;
    stats->tx_heartbeat_errors = 0;
    stats->tx_window_errors = 0;
    stats->rx_compressed = 0;
    stats->tx_compressed = 0;
*/
}

int register_message( device_id_t device_id, int phone ){
    ERROR_DECLARE;

    device_ref  device;

    ERROR_PROPAGATE( find_device( device_id, & device ));
    if( device->nil_phone ) return ELIMIT;
    device->nil_phone = phone;
    return EOK;
}

int netif_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
    ERROR_DECLARE;

    size_t          length;
    device_stats_ref    stats;
    packet_t        packet;

//  printf( "\nNETIF message %d", method );
    * answer_count = 0;
    switch( IPC_GET_METHOD( * call )){
        case IPC_M_PHONE_HUNGUP:
            return EOK;
        case NET_NETIF_PROBE_AUTO:
            return probe_auto_message();
        case NET_NETIF_PROBE:
            return probe_message( IPC_GET_DEVICE( call ), IPC_GET_IRQ( call ), IPC_GET_IO( call ));
        case IPC_M_CONNECT_TO_ME:
            return register_message( IPC_GET_DEVICE( call ), IPC_GET_PHONE( call ));
        case NET_NETIF_SEND:
            ERROR_PROPAGATE( packet_receive( & packet ));
            return send_message( IPC_GET_DEVICE( call ), packet );
        case NET_NETIF_START:
            return start_message( IPC_GET_DEVICE( call ));
        case NET_NETIF_STATS:
            ERROR_PROPAGATE( ipc_data_read_receive( & callid, & length ));
            if( length < sizeof( device_stats_t )) return EOVERFLOW;
            ERROR_PROPAGATE( get_device_stats( IPC_GET_DEVICE( call ), & stats ));
            return ipc_data_read_finalize( callid, stats, sizeof( device_stats_t ));
        case NET_NETIF_STOP:
            return stop_message( IPC_GET_DEVICE( call ));
    }
    return ENOTSUP;
}

int netif_start_module( async_client_conn_t client_connection ){
    ERROR_DECLARE;

    async_set_client_connection( client_connection );
    netif_globals.networking_phone = connect_to_service( SERVICE_NETWORKING );
    device_map_initialize( & netif_globals.device_map );
    ERROR_PROPAGATE( initialize());

    async_manager();

    return EOK;
}

/** @}
 */