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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