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/*
* compat.h -- Older kernel (=> 2.6.11) support
*
* 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.
*
* Written by Mathieu Bérard <mathieu.berard@crans.org>, 2006
*/
#include <linux/version.h>
/*
* For compatibility with kernel older than 2.6.16
* Mutex to Semaphore fallback
*/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,16))
#include <asm/semaphore.h>
#define DEFINE_MUTEX(lock) DECLARE_MUTEX(lock)
#define mutex_init(lock) init_MUTEX(lock)
#define mutex_lock(lock) down(lock)
#define mutex_lock_interruptible(lock) down_interruptible(lock)
#define mutex_unlock(lock) up(lock)
#define mutex_destroy(lock) do { } while(0)
#else
#include <linux/mutex.h>
#endif
/*
* For compatibility with kernel older than 2.6.14
*/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14))
static void inline *kzalloc(size_t size, int flags)
{
void *ret = kmalloc(size, flags);
if (ret)
memset(ret, 0, size);
return ret;
}
#endif
/*
* For compatibility with kernel older than 2.6.11
*/
#ifndef DEFINE_SPINLOCK
#define DEFINE_SPINLOCK(s) spinlock_t s = SPIN_LOCK_UNLOCKED
#endif
/*
* Those kernel don't have ICH7 southbridge pcids
*/
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11))
#define PCI_DEVICE_ID_INTEL_ICH7_0 0x27b8
#define PCI_DEVICE_ID_INTEL_ICH7_1 0x27b9
#define PCI_DEVICE_ID_INTEL_ICH7_30 0x27b0
#define PCI_DEVICE_ID_INTEL_ICH7_31 0x27bd
#endif
/* End of file */
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