| /* |
| * xcam_common.cpp - xcam common |
| * |
| * Copyright (c) 2014-2015 Intel Corporation |
| * |
| * 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. |
| * |
| * Author: Wind Yuan <feng.yuan@intel.com> |
| */ |
| |
| #include "xcam_common.h" |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <sys/ioctl.h> |
| |
| void * xcam_malloc(size_t size) |
| { |
| return malloc (size); |
| } |
| |
| void * xcam_malloc0(size_t size) |
| { |
| void * ptr = malloc (size); |
| memset (ptr, 0, size); |
| return ptr; |
| } |
| |
| void xcam_free(void *ptr) |
| { |
| if (ptr) |
| free (ptr); |
| } |
| |
| int xcam_device_ioctl (int fd, int cmd, void *arg) |
| { |
| int ret = 0; |
| int tried_time = 0; |
| |
| if (fd < 0) |
| return -1; |
| |
| while (1) { |
| ret = ioctl (fd, cmd, arg); |
| if (ret >= 0) |
| break; |
| if (errno != EINTR && errno != EAGAIN) |
| break; |
| if (++tried_time > 5) |
| break; |
| } |
| |
| if (ret >= 0) { |
| XCAM_LOG_DEBUG ("ioctl return ok on fd(%d), cmd:%d", fd, cmd); |
| } else { |
| XCAM_LOG_DEBUG ("ioctl failed on fd(%d), cmd:%d, error:%s", |
| fd, cmd, strerror(errno)); |
| } |
| return ret; |
| } |
| |
| const char * |
| xcam_fourcc_to_string (uint32_t fourcc) |
| { |
| static char str[5]; |
| |
| xcam_mem_clear (str); |
| memcpy (str, &fourcc, 4); |
| return str; |
| } |
| |