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 <sys/types.h> 25 #include <linux/ion.h> 26 27 __BEGIN_DECLS 28 29 struct ion_handle; 30 31 int ion_open(); 32 int ion_close(int fd); 33 int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask, 34 unsigned int flags, ion_user_handle_t *handle); 35 int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask, 36 unsigned int flags, int *handle_fd); 37 int ion_sync_fd(int fd, int handle_fd); 38 int ion_free(int fd, ion_user_handle_t handle); 39 int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot, 40 int flags, off_t offset, unsigned char **ptr, int *map_fd); 41 int ion_share(int fd, ion_user_handle_t handle, int *share_fd); 42 int ion_import(int fd, int share_fd, ion_user_handle_t *handle); 43 44 __END_DECLS 45 46 #endif /* __SYS_CORE_ION_H */ 47
