diff options
Diffstat (limited to 'kernel/net/irda/irmod.c')
| -rw-r--r-- | kernel/net/irda/irmod.c | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/kernel/net/irda/irmod.c b/kernel/net/irda/irmod.c new file mode 100644 index 000000000..c5e35b85c --- /dev/null +++ b/kernel/net/irda/irmod.c @@ -0,0 +1,199 @@ +/********************************************************************* + * + * 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 */ + +/* 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; + + /* 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); |