WSL2-Linux-Kernel/include/linux/rar_register.h

61 строка
1.7 KiB
C

/*
* Copyright (C) 2010 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General
* Public License as published by the Free Software Foundation.
*
* 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, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
* The full GNU General Public License is included in this
* distribution in the file called COPYING.
*/
#ifndef _RAR_REGISTER_H
#define _RAR_REGISTER_H
#include <linux/types.h>
/* following are used both in drivers as well as user space apps */
#define RAR_TYPE_VIDEO 0
#define RAR_TYPE_AUDIO 1
#define RAR_TYPE_IMAGE 2
#define RAR_TYPE_DATA 3
#ifdef __KERNEL__
struct rar_device;
#if defined(CONFIG_RAR_REGISTER)
int register_rar(int num,
int (*callback)(unsigned long data), unsigned long data);
void unregister_rar(int num);
int rar_get_address(int rar_index, dma_addr_t *start, dma_addr_t *end);
int rar_lock(int rar_index);
#else
extern void unregister_rar(int num) { }
extern int rar_lock(int rar_index) { return -EIO; }
extern inline int register_rar(int num,
int (*callback)(unsigned long data), unsigned long data)
{
return -ENODEV;
}
extern int rar_get_address(int rar_index, dma_addr_t *start, dma_addr_t *end)
{
return -ENODEV;
}
#endif /* RAR_REGISTER */
#endif /* __KERNEL__ */
#endif /* _RAR_REGISTER_H */