|  | /* | 
|  | *  ion.c | 
|  | * | 
|  | * Memory Allocator functions for ion | 
|  | * | 
|  | *   Copyright 2011 Google, Inc | 
|  | * | 
|  | *  Licensed under the Apache License, Version 2.0 (the "License"); | 
|  | *  you may not use this file except in compliance with the License. | 
|  | *  You may obtain a copy of the License at | 
|  | * | 
|  | *      http://www.apache.org/licenses/LICENSE-2.0 | 
|  | * | 
|  | *  Unless required by applicable law or agreed to in writing, software | 
|  | *  distributed under the License is distributed on an "AS IS" BASIS, | 
|  | *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
|  | *  See the License for the specific language governing permissions and | 
|  | *  limitations under the License. | 
|  | */ | 
|  |  | 
|  | #ifndef __SYS_CORE_ION_H | 
|  | #define __SYS_CORE_ION_H | 
|  |  | 
|  | #include <linux/ion.h> | 
|  |  | 
|  | __BEGIN_DECLS | 
|  |  | 
|  | int ion_open(); | 
|  | int ion_close(int fd); | 
|  | int ion_alloc(int fd, size_t len, size_t align, unsigned int flags, | 
|  | struct ion_handle **handle); | 
|  | int ion_free(int fd, struct ion_handle *handle); | 
|  | int ion_map(int fd, struct ion_handle *handle, size_t length, int prot, | 
|  | int flags, off_t offset, unsigned char **ptr, int *map_fd); | 
|  | int ion_share(int fd, struct ion_handle *handle, int *share_fd); | 
|  | int ion_import(int fd, int share_fd, struct ion_handle **handle); | 
|  |  | 
|  | __END_DECLS | 
|  |  | 
|  | #endif /* __SYS_CORE_ION_H */ |