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  1. /*
  2.  * Copyright (c) 2008 Lukas Mejdrech
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup net
  30.  * @{
  31.  */
  32.  
  33. /** @file
  34.  */
  35.  
  36. #include <async.h>
  37. #include <stdio.h>
  38.  
  39. #include <ipc/ipc.h>
  40. #include <ipc/services.h>
  41. //#include <sys/mman.h>
  42.  
  43. #include "../err.h"
  44. #include "../messages.h"
  45. #include "../modules.h"
  46. #include "../packet.h"
  47.  
  48. #include "device.h"
  49. #include "netif.h"
  50.  
  51. #define IPC_GET_DEVICE( call )      ( device_id_t ) IPC_GET_ARG1( * call )
  52. #define IPC_GET_IRQ( call )     ( int ) IPC_GET_ARG2( * call )
  53. #define IPC_GET_IO( call )      ( int ) IPC_GET_ARG3( * call )
  54. #define IPC_GET_PHONE( call )       ( int ) IPC_GET_ARG5( * call )
  55.  
  56. extern netif_globals_t netif_globals;
  57.  
  58. extern int  initialize( void );
  59. extern int  probe_auto_message( void );
  60. extern int  probe_message( device_id_t device_id, int irq, int io );
  61. extern int  send_message( device_id_t device_id, packet_t packet );
  62. extern int  start_message( device_id_t device_id );
  63. extern int  stop_message( device_id_t device_id );
  64.  
  65. DEVICE_MAP_IMPLEMENT( device_map, device_t )
  66.  
  67. int module_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count );
  68. int netif_start_module( async_client_conn_t client_connection );
  69. int register_message( device_id_t device_id, int phone );
  70. int get_device_stats( device_id_t device_id, device_stats_ref * stats );
  71.  
  72. int find_device( device_id_t device_id, device_ref * device ){
  73.     * device = device_map_find( & netif_globals.device_map, device_id );
  74.     if( ! * device ) return ENOENT;
  75.     if(( ** device ).state == NETIF_NULL ) return EPERM;
  76.     return EOK;
  77. }
  78.  
  79. int get_device_stats( device_id_t device_id, device_stats_ref * stats ){
  80.     ERROR_DECLARE;
  81.  
  82.     device_ref  device;
  83.  
  84.     if( ! stats ) return EINVAL;
  85.     ERROR_PROPAGATE( find_device( device_id, & device ));
  86.     * stats = & device->stats;
  87.     return EOK;
  88. }
  89.  
  90. void null_device_stats( device_stats_ref stats ){
  91.     memset( stats, 0, sizeof( device_stats_t ));
  92. /*  stats->rx_packets = 0;
  93.     stats->tx_packets = 0;
  94.     stats->rx_bytes = 0;
  95.     stats->tx_bytes = 0;
  96.     stats->rx_errors = 0;
  97.     stats->tx_errors = 0;
  98.     stats->rx_dropped = 0;
  99.     stats->tx_dropped = 0;
  100.     stats->multicast = 0;
  101.     stats->collisions = 0;
  102.     stats->rx_length_errors = 0;
  103.     stats->rx_over_errors = 0;
  104.     stats->rx_crc_errors = 0;
  105.     stats->rx_frame_errors = 0;
  106.     stats->rx_fifo_errors = 0;
  107.     stats->rx_missed_errors = 0;
  108.     stats->tx_aborted_errors = 0;
  109.     stats->tx_carrier_errors = 0;
  110.     stats->tx_fifo_errors = 0;
  111.     stats->tx_heartbeat_errors = 0;
  112.     stats->tx_window_errors = 0;
  113.     stats->rx_compressed = 0;
  114.     stats->tx_compressed = 0;
  115. */
  116. }
  117.  
  118. int register_message( device_id_t device_id, int phone ){
  119.     ERROR_DECLARE;
  120.  
  121.     device_ref  device;
  122.  
  123.     ERROR_PROPAGATE( find_device( device_id, & device ));
  124.     if( device->nil_phone ) return ELIMIT;
  125.     device->nil_phone = phone;
  126.     return EOK;
  127. }
  128.  
  129. int netif_message( ipc_callid_t callid, ipc_call_t * call, ipc_call_t * answer, int * answer_count ){
  130.     ERROR_DECLARE;
  131.  
  132.     size_t          length;
  133.     device_stats_ref    stats;
  134.     packet_t        packet;
  135.  
  136. //  printf( "\nNETIF message %d", method );
  137.     * answer_count = 0;
  138.     switch( IPC_GET_METHOD( * call )){
  139.         case IPC_M_PHONE_HUNGUP:
  140.             return EOK;
  141.         case NET_NETIF_PROBE_AUTO:
  142.             return probe_auto_message();
  143.         case NET_NETIF_PROBE:
  144.             return probe_message( IPC_GET_DEVICE( call ), IPC_GET_IRQ( call ), IPC_GET_IO( call ));
  145.         case IPC_M_CONNECT_TO_ME:
  146.             return register_message( IPC_GET_DEVICE( call ), IPC_GET_PHONE( call ));
  147.         case NET_NETIF_SEND:
  148.             ERROR_PROPAGATE( packet_receive( & packet ));
  149.             return send_message( IPC_GET_DEVICE( call ), packet );
  150.         case NET_NETIF_START:
  151.             return start_message( IPC_GET_DEVICE( call ));
  152.         case NET_NETIF_STATS:
  153.             ERROR_PROPAGATE( ipc_data_read_receive( & callid, & length ));
  154.             if( length < sizeof( device_stats_t )) return EOVERFLOW;
  155.             ERROR_PROPAGATE( get_device_stats( IPC_GET_DEVICE( call ), & stats ));
  156.             return ipc_data_read_finalize( callid, stats, sizeof( device_stats_t ));
  157.         case NET_NETIF_STOP:
  158.             return stop_message( IPC_GET_DEVICE( call ));
  159.     }
  160.     return ENOTSUP;
  161. }
  162.  
  163. int netif_start_module( async_client_conn_t client_connection ){
  164.     ERROR_DECLARE;
  165.  
  166.     async_set_client_connection( client_connection );
  167.     netif_globals.networking_phone = connect_to_service( SERVICE_NETWORKING );
  168.     device_map_initialize( & netif_globals.device_map );
  169.     ERROR_PROPAGATE( initialize());
  170.  
  171.     async_manager();
  172.  
  173.     return EOK;
  174. }
  175.  
  176. /** @}
  177.  */
  178.