1 /* Copyright (c) 2011-2015, The Linux Foundation. All rights reserved.
2  *
3  * Redistribution and use in source and binary forms, with or without
4  * modification, are permitted provided that the following conditions are
5  * met:
6  *     * Redistributions of source code must retain the above copyright
7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above
9  *       copyright notice, this list of conditions and the following
10  *       disclaimer in the documentation and/or other materials provided
11  *       with the distribution.
12  *     * Neither the name of The Linux Foundation, nor the names of its
13  *       contributors may be used to endorse or promote products derived
14  *       from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
23  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
24  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
25  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
26  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  */
29 
30 #ifndef LOC_CFG_H
31 #define LOC_CFG_H
32 
33 #include <stdio.h>
34 #include <stdint.h>
35 
36 #define LOC_MAX_PARAM_NAME                 80
37 #define LOC_MAX_PARAM_STRING               80
38 #define LOC_MAX_PARAM_LINE    (LOC_MAX_PARAM_NAME + LOC_MAX_PARAM_STRING)
39 
40 #define UTIL_UPDATE_CONF(conf_data, len, config_table) \
41     loc_update_conf((conf_data), (len), (config_table), \
42                     sizeof(config_table) / sizeof(config_table[0]))
43 
44 #define UTIL_READ_CONF_DEFAULT(filename) \
45     loc_read_conf((filename), NULL, 0);
46 
47 #define UTIL_READ_CONF(filename, config_table) \
48     loc_read_conf((filename), (config_table), sizeof(config_table) / sizeof(config_table[0]))
49 
50 /*=============================================================================
51  *
52  *                        MODULE TYPE DECLARATION
53  *
54  *============================================================================*/
55 typedef struct
56 {
57   const char                    *param_name;
58   void                          *param_ptr;
59   uint8_t                       *param_set;   /* indicate value set by config file */
60   char                           param_type;  /* 'n' for number,
61                                                  's' for string,
62                                                  'f' for double */
63 } loc_param_s_type;
64 
65 /*=============================================================================
66  *
67  *                          MODULE EXTERNAL DATA
68  *
69  *============================================================================*/
70 
71 #ifdef __cplusplus
72 extern "C" {
73 #endif
74 
75 /*=============================================================================
76  *
77  *                       MODULE EXPORTED FUNCTIONS
78  *
79  *============================================================================*/
80 void loc_read_conf(const char* conf_file_name,
81                    const loc_param_s_type* config_table,
82                    uint32_t table_length);
83 int loc_read_conf_r(FILE *conf_fp, const loc_param_s_type* config_table,
84                     uint32_t table_length);
85 int loc_update_conf(const char* conf_data, int32_t length,
86                     const loc_param_s_type* config_table, uint32_t table_length);
87 #ifdef __cplusplus
88 }
89 #endif
90 
91 #endif /* LOC_CFG_H */
92