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/**********************************************************************
*
* Copyright (C) Imagination Technologies Ltd. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful but, except
* as otherwise stated in writing, 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, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Contact Information:
* Imagination Technologies Ltd. <gpl-support@imgtec.com>
* Home Park Estate, Kings Langley, Herts, WD4 8LZ, UK
*
******************************************************************************/
#ifndef __PVR_UACCESS_H__
#define __PVR_UACCESS_H__
#include <linux/version.h>
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38))
#ifndef AUTOCONF_INCLUDED
#include <linux/config.h>
#endif
#endif
#include <asm/uaccess.h>
static inline unsigned long pvr_copy_to_user(void __user *pvTo, const void *pvFrom, unsigned long ulBytes)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
if (access_ok(VERIFY_WRITE, pvTo, ulBytes))
{
return __copy_to_user(pvTo, pvFrom, ulBytes);
}
return ulBytes;
#else
return copy_to_user(pvTo, pvFrom, ulBytes);
#endif
}
static inline unsigned long pvr_copy_from_user(void *pvTo, const void __user *pvFrom, unsigned long ulBytes)
{
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
if (access_ok(VERIFY_READ, pvFrom, ulBytes))
{
return __copy_from_user(pvTo, pvFrom, ulBytes);
}
return ulBytes;
#else
return copy_from_user(pvTo, pvFrom, ulBytes);
#endif
}
#define pvr_put_user put_user
#define pvr_get_user get_user
#endif
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