wrapper.c

ndis在linux下的无线网卡驱动源码

/*
 *  Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
 *
 *  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.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 */

#include "ndis.h"
#include "iw_ndis.h"
#include "loader.h"
#include "pnp.h"

char *if_name = "wlan%d";
int proc_uid, proc_gid;
int hangcheck_interval;

#if defined(DEBUG) && (DEBUG > 0)
int debug = DEBUG;
#else
int debug = 0;
#endif

/* use own workqueue instead of shared one, to avoid depriving
 * others */
workqueue_struct_t *wrap_wq;

WRAP_MODULE_PARM_STRING(if_name, 0400);
MODULE_PARM_DESC(if_name, "Network interface name or template "
		 "(default: wlan%d)");
WRAP_MODULE_PARM_INT(proc_uid, 0600);
MODULE_PARM_DESC(proc_uid, "The uid of the files created in /proc "
		 "(default: 0).");
WRAP_MODULE_PARM_INT(proc_gid, 0600);
MODULE_PARM_DESC(proc_gid, "The gid of the files created in /proc "
		 "(default: 0).");
WRAP_MODULE_PARM_INT(debug, 0600);
MODULE_PARM_DESC(debug, "debug level");

/* 0 - default value provided by NDIS driver,
 * positive value - force hangcheck interval to that many seconds
 * negative value - disable hangcheck
 */
WRAP_MODULE_PARM_INT(hangcheck_interval, 0600);
MODULE_PARM_DESC(hangcheck_interval, "The interval, in seconds, for checking"
		 " if driver is hung. (default: 0)");

MODULE_AUTHOR("ndiswrapper team <[e-mail]>");
#ifdef MODULE_DESCRIPTION
MODULE_DESCRIPTION("NDIS wrapper driver");
#endif
#ifdef MODULE_VERSION
MODULE_VERSION(DRIVER_VERSION);
#endif
MODULE_LICENSE("GPL");

static void module_cleanup(void)
{
	loader_exit();
#ifdef CONFIG_USB
	usb_exit();
#endif

	if (wrap_wq)
		destroy_workqueue(wrap_wq);
	wrap_procfs_remove();
	ndis_exit();
	ntoskernel_exit();
	crt_exit();
	rtl_exit();
	wrapndis_exit();
	wrapmem_exit();
}

static int __init wrapper_init(void)
{
	printk(KERN_INFO "%s version %s loaded (smp=%s)\n",
	       DRIVER_NAME, DRIVER_VERSION,
#ifdef CONFIG_SMP
	       "yes"
#else
	       "no"
#endif
		);

	wrap_wq = create_singlethread_workqueue("wrap_wq");

	if (!wrap_wq || wrapmem_init() || crt_init() || rtl_init() ||
	    ntoskernel_init() || ndis_init() || wrapndis_init() ||
#ifdef CONFIG_USB
	    usb_init() ||
#endif
	    wrap_procfs_init() || loader_init()) {
		module_cleanup();
		ERROR("%s: initialization failed", DRIVER_NAME);
		return -EINVAL;
	}
	EXIT1(return 0);
}

static void __exit wrapper_exit(void)
{
	ENTER1("");
	module_cleanup();
}

module_init(wrapper_init);
module_exit(wrapper_exit);