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/* $Id: isdn_tty.h,v 1.22 2000/06/21 09:54:29 keil Exp $
* header for Linux ISDN subsystem, tty related functions (linklevel).
*
* Copyright 1994-1999 by Fritz Elfert (fritz@isdn4linux.de)
* Copyright 1995,96 by Thinking Objects Software GmbH Wuerzburg
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <linux/config.h>
#define DLE 0x10
#define ETX 0x03
#define DC4 0x14
/*
* Definition of some special Registers of AT-Emulator
*/
#define REG_RINGATA 0
#define REG_RINGCNT 1 /* ring counter register */
#define REG_ESC 2
#define REG_CR 3
#define REG_LF 4
#define REG_BS 5
#define REG_WAITC 7
#define REG_RESP 12 /* show response messages register */
#define BIT_RESP 1 /* show response messages bit */
#define REG_RESPNUM 12 /* show numeric responses register */
#define BIT_RESPNUM 2 /* show numeric responses bit */
#define REG_ECHO 12
#define BIT_ECHO 4
#define REG_DCD 12
#define BIT_DCD 8
#define REG_CTS 12
#define BIT_CTS 16
#define REG_DTRR 12
#define BIT_DTRR 32
#define REG_DSR 12
#define BIT_DSR 64
#define REG_CPPP 12
#define BIT_CPPP 128
#define REG_DXMT 13
#define BIT_DXMT 1
#define REG_T70 13
#define BIT_T70 2
#define BIT_T70_EXT 32
#define REG_DTRHUP 13
#define BIT_DTRHUP 4
#define REG_RESPXT 13
#define BIT_RESPXT 8
#define REG_CIDONCE 13
#define BIT_CIDONCE 16
#define REG_RUNG 13 /* show RUNG message register */
#define BIT_RUNG 64 /* show RUNG message bit */
#define REG_DISPLAY 13
#define BIT_DISPLAY 128
#define REG_L2PROT 14
#define REG_L3PROT 15
#define REG_PSIZE 16
#define REG_WSIZE 17
#define REG_SI1 18
#define REG_SI2 19
#define REG_SI1I 20
#define REG_PLAN 21
#define REG_SCREEN 22
#define REG_CPN 23
#define BIT_CPN 1
#define BIT_CPNFCON 2
/* defines for result codes */
#define RESULT_OK 0
#define RESULT_CONNECT 1
#define RESULT_RING 2
#define RESULT_NO_CARRIER 3
#define RESULT_ERROR 4
#define RESULT_CONNECT64000 5
#define RESULT_NO_DIALTONE 6
#define RESULT_BUSY 7
#define RESULT_NO_ANSWER 8
#define RESULT_RINGING 9
#define RESULT_NO_MSN_EAZ 10
#define RESULT_VCON 11
#define RESULT_RUNG 12
#define TTY_IS_FCLASS1(info) \
((info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_FAX) && \
(info->emu.mdmreg[REG_L3PROT] == ISDN_PROTO_L3_FCLASS1))
#define TTY_IS_FCLASS2(info) \
((info->emu.mdmreg[REG_L2PROT] == ISDN_PROTO_L2_FAX) && \
(info->emu.mdmreg[REG_L3PROT] == ISDN_PROTO_L3_FCLASS2))
extern void isdn_tty_modem_escape(void);
extern void isdn_tty_modem_ring(void);
extern void isdn_tty_carrier_timeout(void);
extern void isdn_tty_modem_xmit(void);
extern int isdn_tty_modem_init(void);
extern void isdn_tty_readmodem(void);
extern int isdn_tty_find_icall(int, int, setup_parm *);
extern void isdn_tty_cleanup_xmit(modem_info *);
extern int isdn_tty_stat_callback(int, isdn_ctrl *);
extern int isdn_tty_rcv_skb(int, int, int, struct sk_buff *);
extern int isdn_tty_capi_facility(capi_msg *cm);
extern void isdn_tty_at_cout(char *, modem_info *);
extern void isdn_tty_modem_hup(modem_info *, int);
#ifdef CONFIG_ISDN_TTY_FAX
extern int isdn_tty_cmd_PLUSF_FAX(char **, modem_info *);
extern int isdn_tty_fax_command(modem_info *, isdn_ctrl *);
extern void isdn_tty_fax_bitorder(modem_info *, struct sk_buff *);
#endif
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