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/*
* wireless network glue code
*
* Copyright (C) 2006 Free Software Foundation, Inc.
* Written by Stefan Siegl <stesie@brokenpipe.de>.
*
* This file is part of GNU Mach.
*
* 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, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _WIRELESS_GLUE_H
#define _WIRELESS_GLUE_H
/*
* Wireless glue configuration.
*/
/*
* Include the pcmcia glue as well, in case the kernel is configured for
* it.
*/
#ifdef CONFIG_PCMCIA
#define PCMCIA_CLIENT
#include "pcmcia_glue.h"
#endif
/*
* Definition of a `BUG' function: write message and panic out.
*/
#ifndef BUG
#define BUG() \
do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); \
*(int *)0=0; } while (0)
#endif
#include <kern/debug.h>
/*
* We need some `schedule_task' replacement. This is defined in
* kernel/context.c in the Linux kernel.
*/
static inline int
schedule_task(struct tq_struct *task)
{
printk(KERN_INFO "schedule_task: not implemented, task=%p\n", task);
Debugger("schedule_task");
return 0; /* fail */
}
/*
* min() and max() macros that also do strict type-checking. See the
* "unnecessary" pointer comparison.
*/
#define min(x,y) ({ \
const typeof(x) _x = (x); \
const typeof(y) _y = (y); \
(void) (&_x == &_y); \
_x < _y ? _x : _y; })
#define max(x,y) ({ \
const typeof(x) _x = (x); \
const typeof(y) _y = (y); \
(void) (&_x == &_y); \
_x > _y ? _x : _y; })
/*
* ... and if you can't take the strict types, you can specify one
* yourself.
*/
#define min_t(type,x,y) \
({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
#define max_t(type,x,y) \
({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
#define DEV_KFREE_SKB(skb) dev_kfree_skb(skb, FREE_WRITE)
/*
* TODO: this is i386 specific.
*/
#define le16_to_cpus(x) do { } while(0)
/*
* Some wireless drivers check for a return value from `copy_to_user',
* however the `memcpy_tofs' implementation does return void.
*/
#undef copy_to_user
#define copy_to_user(a,b,c) ((memcpy_tofs(a,b,c)), 0)
/*
* Some more macros that are available on 2.2 and 2.4 Linux kernels.
*/
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
/*
* TQUEUE glue.
*/
#define PREPARE_TQUEUE(_tq, _routine, _data) \
do { \
(_tq)->routine = _routine; \
(_tq)->data = _data; \
} while (0)
#define INIT_TQUEUE(_tq, _routine, _data) \
do { \
(_tq)->next = 0; \
(_tq)->sync = 0; \
PREPARE_TQUEUE((_tq), (_routine), (_data)); \
} while (0)
/*
* `etherdev' allocator.
*/
static inline struct net_device *
alloc_etherdev(int sz)
{
struct net_device *dev;
sz += sizeof(*dev) + 31;
if (!(dev = kmalloc(sz, GFP_KERNEL)))
return NULL;
memset(dev, 0, sz);
if (sz)
dev->priv = (void *)(((long)dev + sizeof(*dev) + 31) & ~31);
/* just allocate some space for the device name,
* register_netdev will happily provide one to us
*/
dev->name = kmalloc(8, GFP_KERNEL);
dev->name[0] = 0;
ether_setup(dev);
return dev;
}
#endif /* _WIRELESS_GLUE_H */
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