1 /*
2 * Copyright (c) 2022 Rockchip Corporation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *
16 */
17
18 #include "RkIspFecHw.h"
19 #include <errno.h>
20 #include <fcntl.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <sys/ioctl.h>
24 #include <sys/types.h>
25 #include <string.h>
26 #include <unistd.h>
27 #include <linux/videodev2.h>
28
29 namespace RKISPFEC {
30
RkIspFecHw(const char * dev)31 RkIspFecHw::RkIspFecHw(const char* dev)
32 {
33 printf("I: open fec dev %s\n", dev);
34 mFd = ::open(dev, O_RDWR | O_CLOEXEC);
35 if (mFd == -1)
36 printf("E: open %s failed %s !", dev, strerror(errno));
37 printf("I: open fec dev %s done !\n", dev);
38 }
39
~RkIspFecHw()40 RkIspFecHw::~RkIspFecHw()
41 {
42 if (mFd >= 0 )
43 ::close(mFd);
44 }
45
46 int
process(struct rkispp_fec_in_out & param)47 RkIspFecHw::process(struct rkispp_fec_in_out& param)
48 {
49 if (mFd < 0) {
50 printf("E: wrong fec fd \n");
51 return -1;
52 }
53
54 int ret = ioctl(mFd, RKISPP_CMD_FEC_IN_OUT, ¶m);
55
56 if (ret == -EAGAIN) // try again
57 ret = ioctl(mFd, RKISPP_CMD_FEC_IN_OUT, ¶m);
58
59 return ret;
60 }
61
62 };
63