include/linux/isdn_divertif.h

   1 /*
   2  * $Id: isdn_divertif.h,v 1.3 1999/07/05 20:22:00 werner Exp $
   3  *
   4  * Header for the diversion supplementary interface for i4l.
   5  *
   6  * Copyright 1998       by Werner Cornelius (werner@isdn4linux.de)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2, or (at your option)
  11  * any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * $Log: isdn_divertif.h,v $
  23  * Revision 1.3  1999/07/05 20:22:00  werner
  24  * changes to use diversion sources for all kernel versions.
  25  * removed static device, only proc filesystem used
  26  *
  27  * Revision 1.2  1999/07/04 21:38:38  werner
  28  * ported from kernel version 2.0
  29  *
  30  *
  31  */
  32
  33
  34 /***********************************************************/
  35 /* magic value is also used to control version information */
  36 /***********************************************************/
  37 #define DIVERT_IF_MAGIC 0x25873401
  38 #define DIVERT_CMD_REG  0x00  /* register command */
  39 #define DIVERT_CMD_REL  0x01  /* release command */
  40 #define DIVERT_NO_ERR   0x00  /* return value no error */
  41 #define DIVERT_CMD_ERR  0x01  /* invalid cmd */
  42 #define DIVERT_VER_ERR  0x02  /* magic/version invalid */
  43 #define DIVERT_REG_ERR  0x03  /* module already registered */
  44 #define DIVERT_REL_ERR  0x04  /* module not registered */
  45 #define DIVERT_REG_NAME isdn_register_divert
  46
  47 /***************************************************************/
  48 /* structure exchanging data between isdn hl and divert module */
  49 /***************************************************************/
  50 typedef struct
  51   { ulong if_magic; /* magic info and version */
  52     int cmd; /* command */
  53     int (*stat_callback)(isdn_ctrl *); /* supplied by divert module when calling */
  54     int (*ll_cmd)(isdn_ctrl *); /* supplied by hl on return */
  55     char * (*drv_to_name)(int); /* map a driver id to name, supplied by hl */
  56     int (*name_to_drv)(char *); /* map a driver id to name, supplied by hl */
  57   } isdn_divert_if;
  58
  59 /*********************/
  60 /* function register */
  61 /*********************/
  62 extern int DIVERT_REG_NAME(isdn_divert_if *);