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/* $Id: isdn_tty.h,v 1.1.1.1 2004-04-15 02:03:44 phoenix 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 software may be used and distributed according to the terms

 * of the GNU General Public License, incorporated herein by reference.

 *

 */

#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 REG_CPNFCON  23

#define BIT_CPNFCON   2

#define REG_CDN      23

#define BIT_CDN       4

/* 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