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/*****************************************************************************/
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/*
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* auerisdn_b.h -- Auerswald PBX/System Telephone ISDN B channel interface.
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*
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* Copyright (C) 2002 Wolfgang Mües (wolfgang@iksw-muees.de)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*****************************************************************************/
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#ifndef AUERISDN_B_H
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#define AUERISDN_B_H
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#include <../drivers/isdn/hisax/hisax_if.h>
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#include <linux/skbuff.h>
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#include "auerbuf.h"
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#include <../drivers/isdn/hisax/isdnhdlc.h>
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#define AUISDN_RXSIZE 4096 /* RX buffer size */
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#define AUISDN_BCHANNELS 2 /* Number of supported B channels */
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/* states for intbo_state */
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#define INTBOS_IDLE 0
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#define INTBOS_RUNNING 1
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#define INTBOS_CHANGE 2
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#define INTBOS_RESTART 3
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/* ...................................................................*/
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/* B channel state data */
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struct auerswald;
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struct auerisdnbc {
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struct auerswald *cp; /* Context to usb device */
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struct sk_buff *txskb; /* sk buff to transmitt */
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spinlock_t txskb_lock; /* protect against races */
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unsigned int mode; /* B-channel mode */
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unsigned int channel; /* Number of this B-channel */
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unsigned int ofsize; /* Size of device OUT fifo in Bytes */
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int txfree; /* free bytes in tx buffer of device */
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unsigned int txsize; /* size of data paket for this channel */
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unsigned char *rxbuf; /* Receiver input buffer */
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struct isdnhdlc_vars inp_hdlc_state; /* state for RX software HDLC */
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struct isdnhdlc_vars outp_hdlc_state; /* state for TX software HDLC */
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unsigned int lastbyte; /* last byte sent out to trans. B channel */
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};
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/* Function Prototypes */
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void auerisdn_b_l2l1(struct hisax_if *ifc, int pr, void *arg,
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unsigned int channel);
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void auerisdn_b_l1l2(struct auerisdnbc *bc, int pr, void *arg);
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void auerisdn_intbi_complete(struct urb *urb);
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unsigned int auerisdn_b_disconnect(struct auerswald *cp);
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#endif /* AUERISDN_B_H */
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