ion.h revision 92d7ca6af3ee38027d7341f24c6b550eaa41417a 
1/*
2 *  ion.c
3 *
4 * Memory Allocator functions for ion
5 *
6 *   Copyright 2011 Google, Inc
7 *
8 *  Licensed under the Apache License, Version 2.0 (the "License");
9 *  you may not use this file except in compliance with the License.
10 *  You may obtain a copy of the License at
11 *
12 *      http://www.apache.org/licenses/LICENSE-2.0
13 *
14 *  Unless required by applicable law or agreed to in writing, software
15 *  distributed under the License is distributed on an "AS IS" BASIS,
16 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 *  See the License for the specific language governing permissions and
18 *  limitations under the License.
19 */
20
21#ifndef __SYS_CORE_ION_H
22#define __SYS_CORE_ION_H
23
24#include <linux/ion.h>
25
26__BEGIN_DECLS
27
28struct ion_handle;
29
30int ion_open();
31int ion_close(int fd);
32int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,
33              unsigned int flags, ion_user_handle_t *handle);
34int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask,
35              unsigned int flags, int *handle_fd);
36int ion_sync_fd(int fd, int handle_fd);
37int ion_free(int fd, ion_user_handle_t handle);
38int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot,
39            int flags, off_t offset, unsigned char **ptr, int *map_fd);
40int ion_share(int fd, ion_user_handle_t handle, int *share_fd);
41int ion_import(int fd, int share_fd, ion_user_handle_t *handle);
42
43__END_DECLS
44
45#endif /* __SYS_CORE_ION_H */
46