1/*********************************************************************
2 *
3 * Filename:      ircomm_core.h
4 * Version:
5 * Description:
6 * Status:        Experimental.
7 * Author:        Dag Brattli <dagb@cs.uit.no>
8 * Created at:    Wed Jun  9 08:58:43 1999
9 * Modified at:   Mon Dec 13 11:52:29 1999
10 * Modified by:   Dag Brattli <dagb@cs.uit.no>
11 *
12 *     Copyright (c) 1999 Dag Brattli, All Rights Reserved.
13 *
14 *     This program is free software; you can redistribute it and/or
15 *     modify it under the terms of the GNU General Public License as
16 *     published by the Free Software Foundation; either version 2 of
17 *     the License, or (at your option) any later version.
18 *
19 *     This program is distributed in the hope that it will be useful,
20 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
21 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 *     GNU General Public License for more details.
23 *
24 *     You should have received a copy of the GNU General Public License
25 *     along with this program; if not, see <http://www.gnu.org/licenses/>.
26 *
27 ********************************************************************/
28
29#ifndef IRCOMM_CORE_H
30#define IRCOMM_CORE_H
31
32#include <net/irda/irda.h>
33#include <net/irda/irqueue.h>
34#include <net/irda/ircomm_event.h>
35
36#define IRCOMM_MAGIC 0x98347298
37#define IRCOMM_HEADER_SIZE 1
38
39struct ircomm_cb;   /* Forward decl. */
40
41/*
42 * A small call-table, so we don't have to check the service-type whenever
43 * we want to do something
44 */
45typedef struct {
46	int (*data_request)(struct ircomm_cb *, struct sk_buff *, int clen);
47	int (*connect_request)(struct ircomm_cb *, struct sk_buff *,
48			       struct ircomm_info *);
49	int (*connect_response)(struct ircomm_cb *, struct sk_buff *);
50	int (*disconnect_request)(struct ircomm_cb *, struct sk_buff *,
51				  struct ircomm_info *);
52} call_t;
53
54struct ircomm_cb {
55	irda_queue_t queue;
56	magic_t magic;
57
58	notify_t notify;
59	call_t   issue;
60
61	int state;
62	int line;            /* Which TTY line we are using */
63
64	struct tsap_cb *tsap;
65	struct lsap_cb *lsap;
66
67	__u8 dlsap_sel;      /* Destination LSAP/TSAP selector */
68	__u8 slsap_sel;      /* Source LSAP/TSAP selector */
69
70	__u32 saddr;         /* Source device address (link we are using) */
71	__u32 daddr;         /* Destination device address */
72
73	int max_header_size; /* Header space we must reserve for each frame */
74	int max_data_size;   /* The amount of data we can fill in each frame */
75
76	LOCAL_FLOW flow_status; /* Used by ircomm_lmp */
77	int pkt_count;          /* Number of frames we have sent to IrLAP */
78
79	__u8 service_type;
80};
81
82extern hashbin_t *ircomm;
83
84struct ircomm_cb *ircomm_open(notify_t *notify, __u8 service_type, int line);
85int ircomm_close(struct ircomm_cb *self);
86
87int ircomm_data_request(struct ircomm_cb *self, struct sk_buff *skb);
88void ircomm_data_indication(struct ircomm_cb *self, struct sk_buff *skb);
89void ircomm_process_data(struct ircomm_cb *self, struct sk_buff *skb);
90int ircomm_control_request(struct ircomm_cb *self, struct sk_buff *skb);
91int ircomm_connect_request(struct ircomm_cb *self, __u8 dlsap_sel,
92			   __u32 saddr, __u32 daddr, struct sk_buff *skb,
93			   __u8 service_type);
94void ircomm_connect_indication(struct ircomm_cb *self, struct sk_buff *skb,
95			       struct ircomm_info *info);
96void ircomm_connect_confirm(struct ircomm_cb *self, struct sk_buff *skb,
97			    struct ircomm_info *info);
98int ircomm_connect_response(struct ircomm_cb *self, struct sk_buff *userdata);
99int ircomm_disconnect_request(struct ircomm_cb *self, struct sk_buff *userdata);
100void ircomm_disconnect_indication(struct ircomm_cb *self, struct sk_buff *skb,
101				  struct ircomm_info *info);
102void ircomm_flow_request(struct ircomm_cb *self, LOCAL_FLOW flow);
103
104#define ircomm_is_connected(self) (self->state == IRCOMM_CONN)
105
106#endif
107