isdn4linux/include/linux/isdn_divertif.h

53 lines
2.2 KiB
C

/* $Id$
* Header for the diversion supplementary interface for i4l.
*
* Copyright 1998 by Werner Cornelius (werner@isdn4linux.de)
*
* 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.
*
*/
/***********************************************************/
/* magic value is also used to control version information */
/***********************************************************/
#define DIVERT_IF_MAGIC 0x25873401
#define DIVERT_CMD_REG 0x00 /* register command */
#define DIVERT_CMD_REL 0x01 /* release command */
#define DIVERT_NO_ERR 0x00 /* return value no error */
#define DIVERT_CMD_ERR 0x01 /* invalid cmd */
#define DIVERT_VER_ERR 0x02 /* magic/version invalid */
#define DIVERT_REG_ERR 0x03 /* module already registered */
#define DIVERT_REL_ERR 0x04 /* module not registered */
#define DIVERT_REG_NAME isdn_register_divert
/***************************************************************/
/* structure exchanging data between isdn hl and divert module */
/***************************************************************/
typedef struct
{ ulong if_magic; /* magic info and version */
int cmd; /* command */
int (*stat_callback)(isdn_ctrl *); /* supplied by divert module when calling */
int (*ll_cmd)(isdn_ctrl *); /* supplied by hl on return */
char * (*drv_to_name)(int); /* map a driver id to name, supplied by hl */
int (*name_to_drv)(char *); /* map a driver id to name, supplied by hl */
} isdn_divert_if;
/*********************/
/* function register */
/*********************/
extern int DIVERT_REG_NAME(isdn_divert_if *);