include/linux/isdn_divertif.h

   1 /* $Id: isdn_divertif.h,v 1.4 2000/05/11 22:29:22 kai Exp $
   2
   3  * Header for the diversion supplementary interface for i4l.
   4  *
   5  * Copyright 1998       by Werner Cornelius (werner@isdn4linux.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, or (at your option)
  10  * 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
  24 /***********************************************************/
  25 /* magic value is also used to control version information */
  26 /***********************************************************/
  27 #define DIVERT_IF_MAGIC 0x25873401
  28 #define DIVERT_CMD_REG  0x00  /* register command */
  29 #define DIVERT_CMD_REL  0x01  /* release command */
  30 #define DIVERT_NO_ERR   0x00  /* return value no error */
  31 #define DIVERT_CMD_ERR  0x01  /* invalid cmd */
  32 #define DIVERT_VER_ERR  0x02  /* magic/version invalid */
  33 #define DIVERT_REG_ERR  0x03  /* module already registered */
  34 #define DIVERT_REL_ERR  0x04  /* module not registered */
  35 #define DIVERT_REG_NAME isdn_register_divert
  36
  37 /***************************************************************/
  38 /* structure exchanging data between isdn hl and divert module */
  39 /***************************************************************/
  40 typedef struct
  41   { ulong if_magic; /* magic info and version */
  42     int cmd; /* command */
  43     int (*stat_callback)(isdn_ctrl *); /* supplied by divert module when calling */
  44     int (*ll_cmd)(isdn_ctrl *); /* supplied by hl on return */
  45     char * (*drv_to_name)(int); /* map a driver id to name, supplied by hl */
  46     int (*name_to_drv)(char *); /* map a driver id to name, supplied by hl */
  47   } isdn_divert_if;
  48
  49 /*********************/
  50 /* function register */
  51 /*********************/
  52 extern int DIVERT_REG_NAME(isdn_divert_if *);