83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
|
/* $Id divert_init.c,v 1.5.6.2 2001/01/24 22:18:17 kai Exp $
|
||
|
|
*
|
||
|
|
* Module init for DSS1 diversion services for i4l.
|
||
|
|
*
|
||
|
|
* Copyright 1999 by Werner Cornelius (werner@isdn4linux.de)
|
||
|
|
*
|
||
|
|
* This software may be used and distributed according to the terms
|
||
|
|
* of the GNU General Public License, incorporated herein by reference.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
|
||
|
|
#include "isdn_divert.h"
|
||
|
|
|
||
|
|
MODULE_DESCRIPTION("ISDN4Linux: Call diversion support");
|
||
|
|
MODULE_AUTHOR("Werner Cornelius");
|
||
|
|
MODULE_LICENSE("GPL");
|
||
|
|
|
||
|
|
/****************************************/
|
||
|
|
/* structure containing interface to hl */
|
||
|
|
/****************************************/
|
||
|
|
isdn_divert_if divert_if = {
|
||
|
|
DIVERT_IF_MAGIC, /* magic value */
|
||
|
|
DIVERT_CMD_REG, /* register cmd */
|
||
|
|
ll_callback, /* callback routine from ll */
|
||
|
|
NULL, /* command still not specified */
|
||
|
|
NULL, /* drv_to_name */
|
||
|
|
NULL, /* name_to_drv */
|
||
|
|
};
|
||
|
|
|
||
|
|
/*************************/
|
||
|
|
/* Module interface code */
|
||
|
|
/* no cmd line parms */
|
||
|
|
/*************************/
|
||
|
|
static int __init divert_init(void)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (divert_dev_init()) {
|
||
|
|
printk(KERN_WARNING "dss1_divert: cannot install device, not loaded\n");
|
||
|
|
return (-EIO);
|
||
|
|
}
|
||
|
|
if ((i = DIVERT_REG_NAME(&divert_if)) != DIVERT_NO_ERR) {
|
||
|
|
divert_dev_deinit();
|
||
|
|
printk(KERN_WARNING "dss1_divert: error %d registering module, not loaded\n", i);
|
||
|
|
return (-EIO);
|
||
|
|
}
|
||
|
|
printk(KERN_INFO "dss1_divert module successfully installed\n");
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**********************/
|
||
|
|
/* Module deinit code */
|
||
|
|
/**********************/
|
||
|
|
static void __exit divert_exit(void)
|
||
|
|
{
|
||
|
|
unsigned long flags;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
spin_lock_irqsave(&divert_lock, flags);
|
||
|
|
divert_if.cmd = DIVERT_CMD_REL; /* release */
|
||
|
|
if ((i = DIVERT_REG_NAME(&divert_if)) != DIVERT_NO_ERR) {
|
||
|
|
printk(KERN_WARNING "dss1_divert: error %d releasing module\n", i);
|
||
|
|
spin_unlock_irqrestore(&divert_lock, flags);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if (divert_dev_deinit()) {
|
||
|
|
printk(KERN_WARNING "dss1_divert: device busy, remove cancelled\n");
|
||
|
|
spin_unlock_irqrestore(&divert_lock, flags);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
spin_unlock_irqrestore(&divert_lock, flags);
|
||
|
|
deleterule(-1); /* delete all rules and free mem */
|
||
|
|
deleteprocs();
|
||
|
|
printk(KERN_INFO "dss1_divert module successfully removed \n");
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(divert_init);
|
||
|
|
module_exit(divert_exit);
|