[linux-2.6-block.git] / include / linux / rar_register.h

/*
 * 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 */
Commit	Line	Data
9cedb392 MA	1	/*
	2	* Copyright (C) 2010 Intel Corporation. All rights reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of version 2 of the GNU General
	6	* Public License as published by the Free Software Foundation.
	7	*
	8	* This program is distributed in the hope that it will be
	9	* useful, but WITHOUT ANY WARRANTY; without even the implied
	10	* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
	11	* PURPOSE. See the GNU General Public License for more details.
	12	* You should have received a copy of the GNU General Public
	13	* License along with this program; if not, write to the Free
	14	* Software Foundation, Inc., 59 Temple Place - Suite 330,
	15	* Boston, MA 02111-1307, USA.
	16	* The full GNU General Public License is included in this
	17	* distribution in the file called COPYING.
	18	*/
	19
	20
	21	#ifndef _RAR_REGISTER_H
	22	#define _RAR_REGISTER_H
	23
375d65db	24	#include <linux/types.h>
9cedb392 MA	25
9cedb392 MA	26	/* following are used both in drivers as well as user space apps */
542385ee	27
375d65db AC	28	#define RAR_TYPE_VIDEO 0
	29	#define RAR_TYPE_AUDIO 1
	30	#define RAR_TYPE_IMAGE 2
	31	#define RAR_TYPE_DATA 3
9cedb392	32
375d65db	33	#ifdef __KERNEL__
9cedb392	34
375d65db	35	struct rar_device;
9cedb392	36
62a8c3a3	37	#if defined(CONFIG_RAR_REGISTER)
375d65db AC	38	int register_rar(int num,
	39	int (*callback)(unsigned long data), unsigned long data);
	40	void unregister_rar(int num);
	41	int rar_get_address(int rar_index, dma_addr_t start, dma_addr_t end);
9cedb392	42	int rar_lock(int rar_index);
62a8c3a3 AC	43	#else
	44	extern void unregister_rar(int num) { }
	45	extern int rar_lock(int rar_index) { return -EIO; }
	46
	47	extern inline int register_rar(int num,
	48	int (*callback)(unsigned long data), unsigned long data)
	49	{
	50	return -ENODEV;
	51	}
	52
	53	extern int rar_get_address(int rar_index, dma_addr_t start, dma_addr_t end)
	54	{
	55	return -ENODEV;
	56	}
	57	#endif /* RAR_REGISTER */
542385ee	58
9cedb392 MA	59	#endif /* __KERNEL__ */
9cedb392 MA	60	#endif /* _RAR_REGISTER_H */