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