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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* $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/***************************************************************/
28/* structure exchanging data between isdn hl and divert module */
29/***************************************************************/
30typedef struct
31 { ulong if_magic; /* magic info and version */
32 int cmd; /* command */
33 int (*stat_callback)(isdn_ctrl *); /* supplied by divert module when calling */
34 int (*ll_cmd)(isdn_ctrl *); /* supplied by hl on return */
35 char * (*drv_to_name)(int); /* map a driver id to name, supplied by hl */
36 int (*name_to_drv)(char *); /* map a driver id to name, supplied by hl */
37 } isdn_divert_if;
38
39/*********************/
40/* function register */
41/*********************/
42extern int DIVERT_REG_NAME(isdn_divert_if *);