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 Tromsų 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
120
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