/*********************************************************************
*
* Filename: irmod.c
* Version: 0.9
* Description: IrDA stack main entry points
* Status: Experimental.
* Author: Dag Brattli <dagb@cs.uit.no>
* Created at: Mon Dec 15 13:55:39 1997
* Modified at: Wed Jan 5 15:12:41 2000
* Modified by: Dag Brattli <dagb@cs.uit.no>
*
* Copyright (c) 1997, 1999-2000 Dag Brattli, All Rights Reserved.
* Copyright (c) 2000-2004 Jean Tourrilhes <jt@hpl.hp.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* Neither Dag Brattli nor University of Tromsø admit liability nor
* provide warranty for any of this software. This material is
* provided "AS-IS" and at no charge.
*
********************************************************************/
/*
* This file contains the main entry points of the IrDA stack.
* They are in this file and not af_irda.c because some developpers
* are using the IrDA stack without the socket API (compiling out
* af_irda.c).
* Jean II
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <net/irda/irda.h>
#include <net/irda/irmod.h> /* notify_t */
#include <net/irda/irlap.h> /* irlap_init */
#include <net/irda/irlmp.h> /* irlmp_init */
#include <net/irda/iriap.h> /* iriap_init */
#include <net/irda/irttp.h> /* irttp_init */
#include <net/irda/irda_device.h> /* irda_device_init */
/*
* Module parameters
*/
#ifdef CONFIG_IRDA_DEBUG
unsigned int irda_debug = IRDA_DEBUG_LEVEL;
module_param_named(debug, irda_debug, uint, 0);
MODULE_PARM_DESC(debug, "IRDA debugging level");
EXPORT_SYMBOL(irda_debug);
#endif
/* Packet type handler.
* Tell the kernel how IrDA packets should be handled.
*/
static struct packet_type irda_packet_type __read_mostly = {
.type = cpu_to_be16(ETH_P_IRDA),
.func = irlap_driver_rcv, /* Packet type handler irlap_frame.c */
};
/*
* Function irda_notify_init (notify)
*
* Used for initializing the notify structure
*
*/
void irda_notify_init(notify_t *notify)
{
notify->data_indication = NULL;
notify->udata_indication = NULL;
notify->connect_confirm = NULL;
notify->connect_indication = NULL;
notify->disconnect_indication = NULL;
notify->flow_indication = NULL;
notify->status_indication = NULL;
notify->instance = NULL;
strlcpy(notify->name, "Unknown", sizeof(notify->name));
}
EXPORT_SYMBOL(irda_notify_init);
/*
* Function irda_init (void)
*
* Protocol stack initialisation entry point.
* Initialise the various components of the IrDA stack
*/
static int __init irda_init(void)
{
int ret = 0;
IRDA_DEBUG(0, "%s()\n", __func__);
/* Lower layer of the stack */
irlmp_init();
irlap_init();
/* Driver/dongle support */
irda_device_init();
/* Higher layers of the stack */
iriap_init();
irttp_init();
ret = irsock_init();
if (ret < 0)
goto out_err_1;
/* Add IrDA packet type (Start receiving packets) */
dev_add_pack(&irda_packet_type);
/* External APIs */
#ifdef CONFIG_PROC_FS
irda_proc_register();
#endif
#ifdef CONFIG_SYSCTL
ret = irda_sysctl_register();
if (ret < 0)
goto out_err_2;
#endif
ret = irda_nl_register();
if (ret < 0)
goto out_err_3;
return 0;
out_err_3:
#ifdef CONFIG_SYSCTL
irda_sysctl_unregister();
out_err_2:
#endif
#ifdef CONFIG_PROC_FS
irda_proc_unregister();
#endif
/* Remove IrDA packet type (stop receiving packets) */
dev_remove_pack(&irda_packet_type);
/* Remove higher layers */
irsock_cleanup();
out_err_1:
irttp_cleanup();
iriap_cleanup();
/* Remove lower layers */
irda_device_cleanup();
irlap_cleanup(); /* Must be done before irlmp_cleanup()! DB */
/* Remove middle layer */
irlmp_cleanup();
return ret;
}
/*
* Function irda_cleanup (void)
*
* Protocol stack cleanup/removal entry point.
* Cleanup the various components of the IrDA stack
*/
static void __exit irda_cleanup(void)
{
/* Remove External APIs */
irda_nl_unregister();
#ifdef CONFIG_SYSCTL
irda_sysctl_unregister();
#endif
#ifdef CONFIG_PROC_FS
irda_proc_unregister();
#endif
/* Remove IrDA packet type (stop receiving packets) */
dev_remove_pack(&irda_packet_type);
/* Remove higher layers */
irsock_cleanup();
irttp_cleanup();
iriap_cleanup();
/* Remove lower layers */
irda_device_cleanup();
irlap_cleanup(); /* Must be done before irlmp_cleanup()! DB */
/* Remove middle layer */
irlmp_cleanup();
}
/*
* The IrDA stack must be initialised *before* drivers get initialised,
* and *before* higher protocols (IrLAN/IrCOMM/IrNET) get initialised,
* otherwise bad things will happen (hashbins will be NULL for example).
* Those modules are at module_init()/device_initcall() level.
*
* On the other hand, it needs to be initialised *after* the basic
* networking, the /proc/net filesystem and sysctl module. Those are
* currently initialised in .../init/main.c (before initcalls).
* Also, IrDA drivers needs to be initialised *after* the random number
* generator (main stack and higher layer init don't need it anymore).
*
* Jean II
*/
subsys_initcall(irda_init);
module_exit(irda_cleanup);
MODULE_AUTHOR("Dag Brattli <dagb@cs.uit.no> & Jean Tourrilhes <jt@hpl.hp.com>");
MODULE_DESCRIPTION("The Linux IrDA Protocol Stack");
MODULE_LICENSE("GPL");
MODULE_ALIAS_NETPROTO(PF_IRDA);
