include/net1/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 Jul  8 12:18:54 1999
  10  * Modified by:   Dag Brattli <dagb@cs.uit.no>
  11  *
  12  *     Copyright (c) 1997, 1999 Dag Brattli <dagb@cs.uit.no>,
  13  *     All Rights Reserved.
  14  *     Copyright (c) 2000-2001 Jean Tourrilhes <jt@hpl.hp.com>
  15  *
  16  *     This program is free software; you can redistribute it and/or
  17  *     modify it under the terms of the GNU General Public License as
  18  *     published by the Free Software Foundation; either version 2 of
  19  *     the License, or (at your option) any later version.
  20  *
  21  *     Neither Dag Brattli nor University of Tromsø admit liability nor
  22  *     provide warranty for any of this software. This material is
  23  *     provided "AS-IS" and at no charge.
  24  *
  25  ********************************************************************/
  26
  27 #ifndef IRLMP_EVENT_H
  28 #define IRLMP_EVENT_H
  29
  30 struct irlmp_cb;
  31 struct lsap_cb;
  32 struct lap_cb;
  33
  34 /* LAP states */
  35 typedef enum {
  36         /* IrLAP connection control states */
  37         LAP_STANDBY,             /* No LAP connection */
  38         LAP_U_CONNECT,           /* Starting LAP connection */
  39         LAP_ACTIVE,              /* LAP connection is active */
  40 } IRLMP_STATE;
  41
  42 /* LSAP connection control states */
  43 typedef enum {
  44         LSAP_DISCONNECTED,        /* No LSAP connection */
  45         LSAP_CONNECT,             /* Connect indication from peer */
  46         LSAP_CONNECT_PEND,        /* Connect request from service user */
  47         LSAP_DATA_TRANSFER_READY, /* LSAP connection established */
  48         LSAP_SETUP,               /* Trying to set up LSAP connection */
  49         LSAP_SETUP_PEND,          /* Request to start LAP connection */
  50 } LSAP_STATE;
  51
  52 typedef enum {
  53         /* LSAP events */
  54         LM_CONNECT_REQUEST,
  55         LM_CONNECT_CONFIRM,
  56         LM_CONNECT_RESPONSE,
  57         LM_CONNECT_INDICATION,
  58
  59         LM_DISCONNECT_INDICATION,
  60         LM_DISCONNECT_REQUEST,
  61
  62         LM_DATA_REQUEST,
  63         LM_UDATA_REQUEST,
  64         LM_DATA_INDICATION,
  65         LM_UDATA_INDICATION,
  66
  67         LM_WATCHDOG_TIMEOUT,
  68
  69         /* IrLAP events */
  70         LM_LAP_CONNECT_REQUEST,
  71         LM_LAP_CONNECT_INDICATION,
  72         LM_LAP_CONNECT_CONFIRM,
  73         LM_LAP_DISCONNECT_INDICATION,
  74         LM_LAP_DISCONNECT_REQUEST,
  75         LM_LAP_DISCOVERY_REQUEST,
  76         LM_LAP_DISCOVERY_CONFIRM,
  77         LM_LAP_IDLE_TIMEOUT,
  78 } IRLMP_EVENT;
  79
  80 /*
  81  *  Information which is used by the current thread, when executing in the
  82  *  state machine.
  83  */
  84 struct irlmp_event {
  85         IRLMP_EVENT *event;
  86         struct sk_buff *skb;
  87
  88         __u8 hint;
  89         __u32 daddr;
  90         __u32 saddr;
  91
  92         __u8 slsap;
  93         __u8 dlsap;
  94
  95         int reason;
  96
  97         discovery_t *discovery;
  98 };
  99
 100 extern const char *irlmp_state[];
 101 extern const char *irlsap_state[];
 102
 103 void irlmp_watchdog_timer_expired(void *data);
 104 void irlmp_discovery_timer_expired(void *data);
 105 void irlmp_idle_timer_expired(void *data);
 106
 107 void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event,
 108                         struct sk_buff *skb);
 109 int irlmp_do_lsap_event(struct lsap_cb *self, IRLMP_EVENT event,
 110                         struct sk_buff *skb);
 111
 112 #endif /* IRLMP_EVENT_H */
 113
 114
 115
 116