59 строки
1.8 KiB
C
59 строки
1.8 KiB
C
/*********************************************************************
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*
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* Filename: wrapper.h
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* Version: 1.2
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* Description: IrDA SIR async wrapper layer
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* Status: Experimental.
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* Author: Dag Brattli <dagb@cs.uit.no>
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* Created at: Mon Aug 4 20:40:53 1997
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* Modified at: Tue Jan 11 12:37:29 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 <dagb@cs.uit.no>,
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* All Rights Reserved.
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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 charge.
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*
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********************************************************************/
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#ifndef WRAPPER_H
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#define WRAPPER_H
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#include <linux/types.h>
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#include <linux/skbuff.h>
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#include <linux/netdevice.h>
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#include <net/irda/irda_device.h> /* iobuff_t */
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#define BOF 0xc0 /* Beginning of frame */
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#define XBOF 0xff
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#define EOF 0xc1 /* End of frame */
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#define CE 0x7d /* Control escape */
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#define STA BOF /* Start flag */
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#define STO EOF /* End flag */
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#define IRDA_TRANS 0x20 /* Asynchronous transparency modifier */
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/* States for receving a frame in async mode */
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enum {
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OUTSIDE_FRAME,
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BEGIN_FRAME,
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LINK_ESCAPE,
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INSIDE_FRAME
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};
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/* Proto definitions */
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int async_wrap_skb(struct sk_buff *skb, __u8 *tx_buff, int buffsize);
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void async_unwrap_char(struct net_device *dev, struct net_device_stats *stats,
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iobuff_t *buf, __u8 byte);
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#endif
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