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1 | /********************************************************************* |
2 | * | |
3 | * Filename: wrapper.h | |
4 | * Version: 1.2 | |
5 | * Description: IrDA SIR async wrapper layer | |
6 | * Status: Experimental. | |
7 | * Author: Dag Brattli <dagb@cs.uit.no> | |
8 | * Created at: Mon Aug 4 20:40:53 1997 | |
9 | * Modified at: Tue Jan 11 12:37:29 2000 | |
10 | * Modified by: Dag Brattli <dagb@cs.uit.no> | |
11 | * | |
12 | * Copyright (c) 1998-2000 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 | * | |
121e70b6 | 20 | * Neither Dag Brattli nor University of Tromsø admit liability nor |
1da177e4 LT |
21 | * provide warranty for any of this software. This material is |
22 | * provided "AS-IS" and at no charge. | |
23 | * | |
24 | ********************************************************************/ | |
25 | ||
26 | #ifndef WRAPPER_H | |
27 | #define WRAPPER_H | |
28 | ||
29 | #include <linux/types.h> | |
30 | #include <linux/skbuff.h> | |
31 | #include <linux/netdevice.h> | |
32 | ||
33 | #include <net/irda/irda_device.h> /* iobuff_t */ | |
34 | ||
35 | #define BOF 0xc0 /* Beginning of frame */ | |
36 | #define XBOF 0xff | |
37 | #define EOF 0xc1 /* End of frame */ | |
38 | #define CE 0x7d /* Control escape */ | |
39 | ||
40 | #define STA BOF /* Start flag */ | |
41 | #define STO EOF /* End flag */ | |
42 | ||
43 | #define IRDA_TRANS 0x20 /* Asynchronous transparency modifier */ | |
44 | ||
45 | /* States for receving a frame in async mode */ | |
46 | enum { | |
47 | OUTSIDE_FRAME, | |
48 | BEGIN_FRAME, | |
49 | LINK_ESCAPE, | |
50 | INSIDE_FRAME | |
51 | }; | |
52 | ||
53 | /* Proto definitions */ | |
54 | int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize); | |
55 | void async_unwrap_char(struct net_device *dev, struct net_device_stats *stats, | |
56 | iobuff_t *buf, __u8 byte); | |
57 | ||
58 | #endif |