LXR linux/include/linux/isdn

   1/* $Id: isdn_divertif.h,v 1.4.6.1 2001/09/23 22:25:05 kai Exp $
   2 *
   3 * Header for the diversion supplementary interface for i4l.
   4 *
   5 * Author    Werner Cornelius (werner@titro.de)
   6 * Copyright by Werner Cornelius (werner@titro.de)
   7 *
   8 * This software may be used and distributed according to the terms
   9 * of the GNU General Public License, incorporated herein by reference.
  10 *
  11 */
  12
  13
  14/***********************************************************/
  15/* magic value is also used to control version information */
  16/***********************************************************/
  17#define DIVERT_IF_MAGIC 0x25873401
  18#define DIVERT_CMD_REG  0x00  /* register command */
  19#define DIVERT_CMD_REL  0x01  /* release command */
  20#define DIVERT_NO_ERR   0x00  /* return value no error */
  21#define DIVERT_CMD_ERR  0x01  /* invalid cmd */
  22#define DIVERT_VER_ERR  0x02  /* magic/version invalid */
  23#define DIVERT_REG_ERR  0x03  /* module already registered */
  24#define DIVERT_REL_ERR  0x04  /* module not registered */
  25#define DIVERT_REG_NAME isdn_register_divert
  26
  27#ifdef __KERNEL__
  28#include <linux/isdnif.h>
  29#include <linux/types.h>
  30
  31/***************************************************************/
  32/* structure exchanging data between isdn hl and divert module */
  33/***************************************************************/ 
  34typedef struct
  35  { ulong if_magic; /* magic info and version */
  36    int cmd; /* command */
  37    int (*stat_callback)(isdn_ctrl *); /* supplied by divert module when calling */
  38    int (*ll_cmd)(isdn_ctrl *); /* supplied by hl on return */
  39    char * (*drv_to_name)(int); /* map a driver id to name, supplied by hl */
  40    int (*name_to_drv)(char *); /* map a driver id to name, supplied by hl */
  41  } isdn_divert_if;
  42
  43/*********************/
  44/* function register */
  45/*********************/
  46extern int DIVERT_REG_NAME(isdn_divert_if *);
  47#endif
  48