include/net/irda/irlmp_event.h

   1 /*********************************************************************
   2  *
   3  * Filename:      irlmp_event.h
   4  * Version:       0.1
   5  * Description:   IrDA-LMP event handling
   6  * Status:        Experimental.
   7  * Author:        Dag Brattli <dagb@cs.uit.no>
   8  * Created at:    Mon Aug  4 20:40:53 1997
   9  * Modified at:   Thu Feb 25 20:49:16 1999
  10  * Modified by:   Dag Brattli <dagb@cs.uit.no>
  11  *
  12  *     Copyright (c) 1997 Dag Brattli <dagb@cs.uit.no>, All Rights Reserved.
  13  *
  14  *     This program is free software; you can redistribute it and/or
  15  *     modify it under the terms of the GNU General Public License as
  16  *     published by the Free Software Foundation; either version 2 of
  17  *     the License, or (at your option) any later version.
  18  *
  19  *     Neither Dag Brattli nor University of Tromsø admit liability nor
  20  *     provide warranty for any of this software. This material is
  21  *     provided "AS-IS" and at no charge.
  22  *
  23  ********************************************************************/
  24
  25 #ifndef IRLMP_EVENT_H
  26 #define IRLMP_EVENT_H
  27
  28 struct irlmp_cb;
  29 struct lsap_cb;
  30 struct lap_cb;
  31
  32 /* LAP states */
  33 typedef enum {
  34         /* IrLAP connection control states */
  35         LAP_STANDBY,             /* No LAP connection */
  36         LAP_U_CONNECT,           /* Starting LAP connection */
  37         LAP_ACTIVE,              /* LAP connection is active */
  38 } IRLMP_STATE;
  39
  40 /* LSAP connection control states */
  41 typedef enum {
  42         LSAP_DISCONNECTED,        /* No LSAP connection */
  43         LSAP_CONNECT,             /* Connect indication from peer */
  44         LSAP_CONNECT_PEND,        /* Connect request from service user */
  45         LSAP_DATA_TRANSFER_READY, /* LSAP connection established */
  46         LSAP_SETUP,               /* Trying to set up LSAP connection */
  47         LSAP_SETUP_PEND,          /* Request to start LAP connection */
  48 } LSAP_STATE;
  49
  50 typedef enum {
  51         /* LSAP events */
  52         LM_CONNECT_REQUEST,
  53         LM_CONNECT_CONFIRM,
  54         LM_CONNECT_RESPONSE,
  55         LM_CONNECT_INDICATION,
  56
  57         LM_DISCONNECT_INDICATION,
  58         LM_DISCONNECT_REQUEST,
  59
  60         LM_DATA_REQUEST,
  61         LM_UDATA_REQUEST,
  62         LM_DATA_INDICATION,
  63         LM_UDATA_INDICATION,
  64
  65         LM_WATCHDOG_TIMEOUT,
  66
  67         /* IrLAP events */
  68         LM_LAP_CONNECT_REQUEST,
  69         LM_LAP_CONNECT_INDICATION,
  70         LM_LAP_CONNECT_CONFIRM,
  71         LM_LAP_DISCONNECT_INDICATION,
  72         LM_LAP_DISCONNECT_REQUEST,
  73         LM_LAP_DISCOVERY_REQUEST,
  74         LM_LAP_DISCOVERY_CONFIRM,
  75         LM_LAP_IDLE_TIMEOUT,
  76 } IRLMP_EVENT;
  77
  78 /*
  79  *  Information which is used by the current thread, when executing in the
  80  *  state machine.
  81  */
  82 struct irlmp_event {
  83         IRLMP_EVENT *event;
  84         struct sk_buff *skb;
  85
  86         __u8 hint;
  87         __u32 daddr;
  88         __u32 saddr;
  89
  90         __u8 slsap;
  91         __u8 dlsap;
  92
  93         int reason;
  94
  95         discovery_t *discovery;
  96 };
  97
  98 extern const char *irlmp_state[];
  99 extern const char *irlsap_state[];
 100
 101 void irlmp_watchdog_timer_expired( unsigned long data);
 102 void irlmp_discovery_timer_expired( unsigned long data);
 103 void irlmp_idle_timer_expired( unsigned long data);
 104
 105 void irlmp_next_station_state( IRLMP_STATE state);
 106 void irlmp_next_lsap_state( struct lsap_cb *self, LSAP_STATE state);
 107 void irlmp_next_lap_state( struct lap_cb *self, IRLMP_STATE state);
 108
 109 void irlmp_do_lap_event( struct lap_cb *self, IRLMP_EVENT event,
 110                          struct sk_buff *skb);
 111 void irlmp_do_lsap_event( struct lsap_cb *self, IRLMP_EVENT event,
 112                           struct sk_buff *skb);
 113
 114 #endif