36     int fd = open("/dev/ion", O_RDWR);  in ion_open()  local
37     if (fd < 0)  in ion_open()
39     return fd;  in ion_open()
42 int ion_close(int fd)  in ion_close()  argument
44     int ret = close(fd);  in ion_close()
50 static int ion_ioctl(int fd, int req, void *arg)  in ion_ioctl()  argument
52     int ret = ioctl(fd, req, arg);  in ion_ioctl()
61 int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,  in ion_alloc()  argument
75     ret = ion_ioctl(fd, ION_IOC_ALLOC, &data);  in ion_alloc()
82 int ion_free(int fd, ion_user_handle_t handle)  in ion_free()  argument
87     return ion_ioctl(fd, ION_IOC_FREE, &data);  in ion_free()
90 int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot,  in ion_map()  argument
104     ret = ion_ioctl(fd, ION_IOC_MAP, &data);  in ion_map()
107     if (data.fd < 0) {  in ion_map()
111     tmp_ptr = mmap(NULL, length, prot, flags, data.fd, offset);  in ion_map()
116     *map_fd = data.fd;  in ion_map()
121 int ion_share(int fd, ion_user_handle_t handle, int *share_fd)  in ion_share()  argument
131     ret = ion_ioctl(fd, ION_IOC_SHARE, &data);  in ion_share()
134     if (data.fd < 0) {  in ion_share()
138     *share_fd = data.fd;  in ion_share()
142 int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask,  in ion_alloc_fd()  argument
147     ret = ion_alloc(fd, len, align, heap_mask, flags, &handle);  in ion_alloc_fd()
150     ret = ion_share(fd, handle, handle_fd);  in ion_alloc_fd()
151     ion_free(fd, handle);  in ion_alloc_fd()
155 int ion_import(int fd, int share_fd, ion_user_handle_t *handle)  in ion_import()  argument
159         .fd = share_fd,  in ion_import()
165     ret = ion_ioctl(fd, ION_IOC_IMPORT, &data);  in ion_import()
172 int ion_sync_fd(int fd, int handle_fd)  in ion_sync_fd()  argument
175         .fd = handle_fd,  in ion_sync_fd()
177     return ion_ioctl(fd, ION_IOC_SYNC, &data);  in ion_sync_fd()