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 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  *
  15  *     This program is free software; you can redistribute it and/or
  16  *     modify it under the terms of the GNU General Public License as
  17  *     published by the Free Software Foundation; either version 2 of
  18  *     the License, or (at your option) any later version.
  19  *
  20  *     Neither Dag Brattli nor University of Tromsø admit liability nor
  21  *     provide warranty for any of this software. This material is
  22  *     provided "AS-IS" and at no charge.
  23  *
  24  ********************************************************************/
  25
  26 #ifndef IRLMP_EVENT_H
  27 #define IRLMP_EVENT_H
  28
  29 struct irlmp_cb;
  30 struct lsap_cb;
  31 struct lap_cb;
  32
  33 /* LAP states */
  34 typedef enum {
  35         /* IrLAP connection control states */
  36         LAP_STANDBY,             /* No LAP connection */
  37         LAP_U_CONNECT,           /* Starting LAP connection */
  38         LAP_ACTIVE,              /* LAP connection is active */
  39 } IRLMP_STATE;
  40
  41 /* LSAP connection control states */
  42 typedef enum {
  43         LSAP_DISCONNECTED,        /* No LSAP connection */
  44         LSAP_CONNECT,             /* Connect indication from peer */
  45         LSAP_CONNECT_PEND,        /* Connect request from service user */
  46         LSAP_DATA_TRANSFER_READY, /* LSAP connection established */
  47         LSAP_SETUP,               /* Trying to set up LSAP connection */
  48         LSAP_SETUP_PEND,          /* Request to start LAP connection */
  49 } LSAP_STATE;
  50
  51 typedef enum {
  52         /* LSAP events */
  53         LM_CONNECT_REQUEST,
  54         LM_CONNECT_CONFIRM,
  55         LM_CONNECT_RESPONSE,
  56         LM_CONNECT_INDICATION,
  57
  58         LM_DISCONNECT_INDICATION,
  59         LM_DISCONNECT_REQUEST,
  60
  61         LM_DATA_REQUEST,
  62         LM_UDATA_REQUEST,
  63         LM_DATA_INDICATION,
  64         LM_UDATA_INDICATION,
  65
  66         LM_WATCHDOG_TIMEOUT,
  67
  68         /* IrLAP events */
  69         LM_LAP_CONNECT_REQUEST,
  70         LM_LAP_CONNECT_INDICATION,
  71         LM_LAP_CONNECT_CONFIRM,
  72         LM_LAP_DISCONNECT_INDICATION,
  73         LM_LAP_DISCONNECT_REQUEST,
  74         LM_LAP_DISCOVERY_REQUEST,
  75         LM_LAP_DISCOVERY_CONFIRM,
  76         LM_LAP_IDLE_TIMEOUT,
  77 } IRLMP_EVENT;
  78
  79 /*
  80  *  Information which is used by the current thread, when executing in the
  81  *  state machine.
  82  */
  83 struct irlmp_event {
  84         IRLMP_EVENT *event;
  85         struct sk_buff *skb;
  86
  87         __u8 hint;
  88         __u32 daddr;
  89         __u32 saddr;
  90
  91         __u8 slsap;
  92         __u8 dlsap;
  93
  94         int reason;
  95
  96         discovery_t *discovery;
  97 };
  98
  99 extern const char *irlmp_state[];
 100 extern const char *irlsap_state[];
 101
 102 void irlmp_watchdog_timer_expired(void *data);
 103 void irlmp_discovery_timer_expired(void *data);
 104 void irlmp_idle_timer_expired(void *data);
 105
 106 void irlmp_next_station_state(IRLMP_STATE state);
 107 void irlmp_next_lsap_state(struct lsap_cb *self, LSAP_STATE state);
 108 void irlmp_next_lap_state(struct lap_cb *self, IRLMP_STATE state);
 109
 110 void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event,
 111                         struct sk_buff *skb);
 112 int irlmp_do_lsap_event(struct lsap_cb *self, IRLMP_EVENT event,
 113                         struct sk_buff *skb);
 114
 115 #endif /* IRLMP_EVENT_H */
 116
 117
 118
 119