include/linux/isdn_divertif.h

   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 #ifndef _LINUX_ISDN_DIVERTIF_H
  14 #define _LINUX_ISDN_DIVERTIF_H
  15
  16 /***********************************************************/
  17 /* magic value is also used to control version information */
  18 /***********************************************************/
  19 #define DIVERT_IF_MAGIC 0x25873401
  20 #define DIVERT_CMD_REG  0x00  /* register command */
  21 #define DIVERT_CMD_REL  0x01  /* release command */
  22 #define DIVERT_NO_ERR   0x00  /* return value no error */
  23 #define DIVERT_CMD_ERR  0x01  /* invalid cmd */
  24 #define DIVERT_VER_ERR  0x02  /* magic/version invalid */
  25 #define DIVERT_REG_ERR  0x03  /* module already registered */
  26 #define DIVERT_REL_ERR  0x04  /* module not registered */
  27 #define DIVERT_REG_NAME isdn_register_divert
  28
  29 #ifdef __KERNEL__
  30 #include <linux/isdnif.h>
  31 #include <linux/types.h>
  32
  33 /***************************************************************/
  34 /* structure exchanging data between isdn hl and divert module */
  35 /***************************************************************/
  36 typedef struct
  37   { ulong if_magic; /* magic info and version */
  38     int cmd; /* command */
  39     int (*stat_callback)(isdn_ctrl *); /* supplied by divert module when calling */
  40     int (*ll_cmd)(isdn_ctrl *); /* supplied by hl on return */
  41     char * (*drv_to_name)(int); /* map a driver id to name, supplied by hl */
  42     int (*name_to_drv)(char *); /* map a driver id to name, supplied by hl */
  43   } isdn_divert_if;
  44
  45 /*********************/
  46 /* function register */
  47 /*********************/
  48 extern int DIVERT_REG_NAME(isdn_divert_if *);
  49 #endif
  50
  51 #endif /* _LINUX_ISDN_DIVERTIF_H */