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/*********************************************************************
*
* Filename: irmod.h
* Version: 0.3
* Description: IrDA module and utilities functions
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Mon Dec 15 13:58:52 1997
* Modified at: Fri Jan 28 13:15:24 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1998-2000 Dag Brattli, All Rights Reserved.
* Copyright (c) 2000-2002 Jean Tourrilhes <jt@hpl.hp.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* Neither Dag Brattli nor University of Tromsø admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charg.
*
********************************************************************/
#ifndef IRMOD_H
#define IRMOD_H
/* Misc status information */
typedef enum {
STATUS_OK,
STATUS_ABORTED,
STATUS_NO_ACTIVITY,
STATUS_NOISY,
STATUS_REMOTE,
} LINK_STATUS;
typedef enum {
LOCK_NO_CHANGE,
LOCK_LOCKED,
LOCK_UNLOCKED,
} LOCK_STATUS;
typedef enum { FLOW_STOP, FLOW_START } LOCAL_FLOW;
/*
* IrLMP disconnect reasons. The order is very important, since they
* correspond to disconnect reasons sent in IrLMP disconnect frames, so
* please do not touch :-)
*/
typedef enum {
LM_USER_REQUEST = 1, /* User request */
LM_LAP_DISCONNECT, /* Unexpected IrLAP disconnect */
LM_CONNECT_FAILURE, /* Failed to establish IrLAP connection */
LM_LAP_RESET, /* IrLAP reset */
LM_INIT_DISCONNECT, /* Link Management initiated disconnect */
LM_LSAP_NOTCONN, /* Data delivered on unconnected LSAP */
LM_NON_RESP_CLIENT, /* Non responsive LM-MUX client */
LM_NO_AVAIL_CLIENT, /* No available LM-MUX client */
LM_CONN_HALF_OPEN, /* Connection is half open */
LM_BAD_SOURCE_ADDR, /* Illegal source address (i.e 0x00) */
} LM_REASON;
#define LM_UNKNOWN 0xff /* Unspecified disconnect reason */
/* A few forward declarations (to make compiler happy) */
struct qos_info; /* in <net/irda/qos.h> */
/*
* Notify structure used between transport and link management layers
*/
typedef struct {
int (*data_indication)(void *priv, void *sap, struct sk_buff *skb);
int (*udata_indication)(void *priv, void *sap, struct sk_buff *skb);
void (*connect_confirm)(void *instance, void *sap,
struct qos_info *qos, __u32 max_sdu_size,
__u8 max_header_size, struct sk_buff *skb);
void (*connect_indication)(void *instance, void *sap,
struct qos_info *qos, __u32 max_sdu_size,
__u8 max_header_size, struct sk_buff *skb);
void (*disconnect_indication)(void *instance, void *sap,
LM_REASON reason, struct sk_buff *);
void (*flow_indication)(void *instance, void *sap, LOCAL_FLOW flow);
void (*status_indication)(void *instance,
LINK_STATUS link, LOCK_STATUS lock);
void *instance; /* Layer instance pointer */
char name[16]; /* Name of layer */
} notify_t;
#define NOTIFY_MAX_NAME 16
/* Zero the notify structure */
void irda_notify_init(notify_t *notify);
/* Locking wrapper - Note the inverted logic on irda_lock().
* Those function basically return false if the lock is already in the
* position you want to set it. - Jean II */
#define irda_lock(lock) (! test_and_set_bit(0, (void *) (lock)))
#define irda_unlock(lock) (test_and_clear_bit(0, (void *) (lock)))
#endif /* IRMOD_H */
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