1 /*****************************************************************************/ 2 /* 3 * auerisdn_b.h -- Auerswald PBX/System Telephone ISDN B channel interface. 4 * 5 * Copyright (C) 2002 Wolfgang M�es (wolfgang@iksw-muees.de) 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License, or 10 * (at your option) any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 /*****************************************************************************/ 22 23 #ifndef AUERISDN_B_H 24 #define AUERISDN_B_H 25 26 #include <../drivers/isdn/hisax/hisax_if.h> 27 #include <linux/skbuff.h> 28 #include "auerbuf.h" 29 #include <../drivers/isdn/hisax/isdnhdlc.h> 30 31 #define AUISDN_RXSIZE 4096 /* RX buffer size */ 32 #define AUISDN_BCHANNELS 2 /* Number of supported B channels */ 33 34 /* states for intbo_state */ 35 #define INTBOS_IDLE 0 36 #define INTBOS_RUNNING 1 37 #define INTBOS_CHANGE 2 38 #define INTBOS_RESTART 3 39 40 /* ...................................................................*/ 41 /* B channel state data */ 42 struct auerswald; 43 struct auerisdnbc { 44 struct auerswald *cp; /* Context to usb device */ 45 struct sk_buff *txskb; /* sk buff to transmitt */ 46 spinlock_t txskb_lock; /* protect against races */ 47 unsigned int mode; /* B-channel mode */ 48 unsigned int channel; /* Number of this B-channel */ 49 unsigned int ofsize; /* Size of device OUT fifo in Bytes */ 50 int txfree; /* free bytes in tx buffer of device */ 51 unsigned int txsize; /* size of data paket for this channel */ 52 unsigned char *rxbuf; /* Receiver input buffer */ 53 struct isdnhdlc_vars inp_hdlc_state; /* state for RX software HDLC */ 54 struct isdnhdlc_vars outp_hdlc_state; /* state for TX software HDLC */ 55 unsigned int lastbyte; /* last byte sent out to trans. B channel */ 56 }; 57 58 /* Function Prototypes */ 59 void auerisdn_b_l2l1(struct hisax_if *ifc, int pr, void *arg, 60 unsigned int channel); 61 void auerisdn_b_l1l2(struct auerisdnbc *bc, int pr, void *arg); 62 63 void auerisdn_intbi_complete(struct urb *urb); 64 unsigned int auerisdn_b_disconnect(struct auerswald *cp); 65 66 #endif /* AUERISDN_B_H */ 67