Release 4.7 drivers/staging/android/uapi/ashmem.h

/*
 * drivers/staging/android/uapi/ashmem.h
 *
 * Copyright 2008 Google Inc.
 * Author: Robert Love
 *
 * This file is dual licensed.  It may be redistributed and/or modified
 * under the terms of the Apache 2.0 License OR version 2 of the GNU
 * General Public License.
 */

#ifndef _UAPI_LINUX_ASHMEM_H

#define _UAPI_LINUX_ASHMEM_H

#include <linux/ioctl.h>
#include <linux/types.h>


#define ASHMEM_NAME_LEN		256


#define ASHMEM_NAME_DEF		"dev/ashmem"

/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */

#define ASHMEM_NOT_PURGED	0

#define ASHMEM_WAS_PURGED	1

/* Return values from ASHMEM_GET_PIN_STATUS: Is the mapping pinned? */

#define ASHMEM_IS_UNPINNED	0

#define ASHMEM_IS_PINNED	1


struct ashmem_pin {
	
__u32 offset;	/* offset into region, in bytes, page-aligned */
	
__u32 len;	/* length forward from offset, in bytes, page-aligned */
};


#define __ASHMEMIOC		0x77


#define ASHMEM_SET_NAME		_IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])

#define ASHMEM_GET_NAME		_IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])

#define ASHMEM_SET_SIZE		_IOW(__ASHMEMIOC, 3, size_t)

#define ASHMEM_GET_SIZE		_IO(__ASHMEMIOC, 4)

#define ASHMEM_SET_PROT_MASK	_IOW(__ASHMEMIOC, 5, unsigned long)

#define ASHMEM_GET_PROT_MASK	_IO(__ASHMEMIOC, 6)

#define ASHMEM_PIN		_IOW(__ASHMEMIOC, 7, struct ashmem_pin)

#define ASHMEM_UNPIN		_IOW(__ASHMEMIOC, 8, struct ashmem_pin)

#define ASHMEM_GET_PIN_STATUS	_IO(__ASHMEMIOC, 9)

#define ASHMEM_PURGE_ALL_CACHES	_IO(__ASHMEMIOC, 10)

#endif	/* _UAPI_LINUX_ASHMEM_H */
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Directory: drivers/staging/android/uapi

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