1 /*********************************************************************
2  *
3  * Filename:      irmod.h
4  * Version:       0.3
5  * Description:   IrDA module and utilities functions
6  * Status:        Experimental.
7  * Author:        Dag Brattli <dagb@cs.uit.no>
8  * Created at:    Mon Dec 15 13:58:52 1997
9  * Modified at:   Fri Jan 28 13:15:24 2000
10  * Modified by:   Dag Brattli <dagb@cs.uit.no>
11  *
12  *     Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
13  *     Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
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 charg.
23  *
24  ********************************************************************/
25 
26 #ifndef IRMOD_H
27 #define IRMOD_H
28 
29 /* Misc status information */
30 typedef enum {
31 	STATUS_OK,
32 	STATUS_ABORTED,
33 	STATUS_NO_ACTIVITY,
34 	STATUS_NOISY,
35 	STATUS_REMOTE,
36 } LINK_STATUS;
37 
38 typedef enum {
39 	LOCK_NO_CHANGE,
40 	LOCK_LOCKED,
41 	LOCK_UNLOCKED,
42 } LOCK_STATUS;
43 
44 typedef enum { FLOW_STOP, FLOW_START } LOCAL_FLOW;
45 
46 /*
47  *  IrLMP disconnect reasons. The order is very important, since they
48  *  correspond to disconnect reasons sent in IrLMP disconnect frames, so
49  *  please do not touch :-)
50  */
51 typedef enum {
52 	LM_USER_REQUEST = 1,  /* User request */
53 	LM_LAP_DISCONNECT,    /* Unexpected IrLAP disconnect */
54 	LM_CONNECT_FAILURE,   /* Failed to establish IrLAP connection */
55 	LM_LAP_RESET,         /* IrLAP reset */
56 	LM_INIT_DISCONNECT,   /* Link Management initiated disconnect */
57 	LM_LSAP_NOTCONN,      /* Data delivered on unconnected LSAP */
58 	LM_NON_RESP_CLIENT,   /* Non responsive LM-MUX client */
59 	LM_NO_AVAIL_CLIENT,   /* No available LM-MUX client */
60 	LM_CONN_HALF_OPEN,    /* Connection is half open */
61 	LM_BAD_SOURCE_ADDR,   /* Illegal source address (i.e 0x00) */
62 } LM_REASON;
63 #define LM_UNKNOWN 0xff       /* Unspecified disconnect reason */
64 
65 /* A few forward declarations (to make compiler happy) */
66 struct qos_info;		/* in <net/irda/qos.h> */
67 
68 /*
69  *  Notify structure used between transport and link management layers
70  */
71 typedef struct {
72 	int (*data_indication)(void *priv, void *sap, struct sk_buff *skb);
73 	int (*udata_indication)(void *priv, void *sap, struct sk_buff *skb);
74 	void (*connect_confirm)(void *instance, void *sap,
75 				struct qos_info *qos, __u32 max_sdu_size,
76 				__u8 max_header_size, struct sk_buff *skb);
77 	void (*connect_indication)(void *instance, void *sap,
78 				   struct qos_info *qos, __u32 max_sdu_size,
79 				   __u8 max_header_size, struct sk_buff *skb);
80 	void (*disconnect_indication)(void *instance, void *sap,
81 				      LM_REASON reason, struct sk_buff *);
82 	void (*flow_indication)(void *instance, void *sap, LOCAL_FLOW flow);
83 	void (*status_indication)(void *instance,
84 				  LINK_STATUS link, LOCK_STATUS lock);
85 	void *instance; /* Layer instance pointer */
86 	char name[16];  /* Name of layer */
87 } notify_t;
88 
89 #define NOTIFY_MAX_NAME 16
90 
91 /* Zero the notify structure */
92 void irda_notify_init(notify_t *notify);
93 
94 /* Locking wrapper - Note the inverted logic on irda_lock().
95  * Those function basically return false if the lock is already in the
96  * position you want to set it. - Jean II */
97 #define irda_lock(lock)		(! test_and_set_bit(0, (void *) (lock)))
98 #define irda_unlock(lock)	(test_and_clear_bit(0, (void *) (lock)))
99 
100 #endif /* IRMOD_H */
101 
102 
103 
104 
105 
106 
107 
108 
109 
110