1 /*
2 * xcam_common.cpp - xcam common
3 *
4 * Copyright (c) 2014-2015 Intel Corporation
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 *
18 * Author: Wind Yuan <feng.yuan@intel.com>
19 */
20
21 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24
25 #include <base/xcam_common.h>
26 #include <fcntl.h>
27 #include <errno.h>
28 #include <sys/ioctl.h>
29 #include <stdarg.h>
30
31 static char log_file_name[XCAM_MAX_STR_SIZE] = {0};
32
xcam_version()33 uint32_t xcam_version ()
34 {
35 return XCAM_VERSION;
36 }
37
xcam_malloc(size_t size)38 void * xcam_malloc(size_t size)
39 {
40 return malloc (size);
41 }
42
xcam_malloc0(size_t size)43 void * xcam_malloc0(size_t size)
44 {
45 void * ptr = malloc (size);
46 memset (ptr, 0, size);
47 return ptr;
48 }
49
xcam_free(void * ptr)50 void xcam_free(void *ptr)
51 {
52 if (ptr)
53 free (ptr);
54 }
55
xcam_device_ioctl(int fd,int cmd,void * arg)56 int xcam_device_ioctl (int fd, int cmd, void *arg)
57 {
58 int ret = 0;
59 int tried_time = 0;
60
61 if (fd < 0)
62 return -1;
63
64 while (1) {
65 ret = ioctl (fd, cmd, arg);
66 if (ret >= 0)
67 break;
68 if (errno != EINTR && errno != EAGAIN)
69 break;
70 if (++tried_time > 5)
71 break;
72 }
73
74 if (ret >= 0) {
75 XCAM_LOG_DEBUG ("ioctl return ok on fd(%d), cmd:%d", fd, cmd);
76 } else {
77 XCAM_LOG_DEBUG ("ioctl failed on fd(%d), cmd:%d, error:%s",
78 fd, cmd, strerror(errno));
79 }
80 return ret;
81 }
82
83 const char *
xcam_fourcc_to_string(uint32_t fourcc)84 xcam_fourcc_to_string (uint32_t fourcc)
85 {
86 static char str[5];
87
88 xcam_mem_clear (str);
89 memcpy (str, &fourcc, 4);
90 return str;
91 }
92
xcam_print_log(const char * format,...)93 void xcam_print_log (const char* format, ...) {
94 char buffer[XCAM_MAX_STR_SIZE] = {0};
95
96 va_list va_list;
97 va_start (va_list, format);
98 vsnprintf (buffer, XCAM_MAX_STR_SIZE, format, va_list);
99 va_end (va_list);
100
101 if (strlen (log_file_name) > 0) {
102 FILE* p_file = fopen (log_file_name, "ab+");
103 if (NULL != p_file) {
104 fwrite (buffer, sizeof (buffer[0]), strlen (buffer), p_file);
105 fclose (p_file);
106 } else {
107 printf ("%s", buffer);
108 }
109 } else {
110 printf ("%s", buffer);
111 }
112 }
113
xcam_set_log(const char * file_name)114 void xcam_set_log (const char* file_name) {
115 if (NULL != file_name) {
116 memset (log_file_name, 0, XCAM_MAX_STR_SIZE);
117 strncpy (log_file_name, file_name, XCAM_MAX_STR_SIZE);
118 }
119 }
120
121