1 /******************************************************************************
2  *
3  *  Copyright (C) 2009-2012 Broadcom Corporation
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 /******************************************************************************
20  *
21  *  Filename:      conf.c
22  *
23  *  Description:   Contains functions to conduct run-time module configuration
24  *                 based on entries present in the .conf file
25  *
26  ******************************************************************************/
27 
28 #define LOG_TAG "bt_vnd_conf"
29 
30 #include <utils/Log.h>
31 #include <string.h>
32 #include "bt_vendor_brcm.h"
33 #include <stdio.h>
34 
35 /******************************************************************************
36 **  Externs
37 ******************************************************************************/
38 int userial_set_port(char *p_conf_name, char *p_conf_value, int param);
39 int hw_set_patch_file_path(char *p_conf_name, char *p_conf_value, int param);
40 int hw_set_patch_file_name(char *p_conf_name, char *p_conf_value, int param);
41 #if (VENDOR_LIB_RUNTIME_TUNING_ENABLED == TRUE)
42 int hw_set_patch_settlement_delay(char *p_conf_name, char *p_conf_value, int param);
43 #endif
44 
45 
46 /******************************************************************************
47 **  Local type definitions
48 ******************************************************************************/
49 
50 #define CONF_COMMENT '#'
51 #define CONF_DELIMITERS " =\n\r\t"
52 #define CONF_VALUES_DELIMITERS "=\n\r\t"
53 #define CONF_MAX_LINE_LEN 255
54 
55 typedef int (conf_action_t)(char *p_conf_name, char *p_conf_value, int param);
56 
57 typedef struct {
58     const char *conf_entry;
59     conf_action_t *p_action;
60     int param;
61 } conf_entry_t;
62 
63 /******************************************************************************
64 **  Static variables
65 ******************************************************************************/
66 
67 /*
68  * Current supported entries and corresponding action functions
69  */
70 static const conf_entry_t conf_table[] = {
71     {"UartPort", userial_set_port, 0},
72     {"FwPatchFilePath", hw_set_patch_file_path, 0},
73     {"FwPatchFileName", hw_set_patch_file_name, 0},
74 #if (VENDOR_LIB_RUNTIME_TUNING_ENABLED == TRUE)
75     {"FwPatchSettlementDelay", hw_set_patch_settlement_delay, 0},
76 #endif
77     {(const char *) NULL, NULL, 0}
78 };
79 
80 /*****************************************************************************
81 **   CONF INTERFACE FUNCTIONS
82 *****************************************************************************/
83 
84 /*******************************************************************************
85 **
86 ** Function        vnd_load_conf
87 **
88 ** Description     Read conf entry from p_path file one by one and call
89 **                 the corresponding config function
90 **
91 ** Returns         None
92 **
93 *******************************************************************************/
94 void vnd_load_conf(const char *p_path)
95 {
96     FILE    *p_file;
97     char    *p_name;
98     char    *p_value;
99     conf_entry_t    *p_entry;
100     char    line[CONF_MAX_LINE_LEN+1]; /* add 1 for \0 char */
101 
102     ALOGI("Attempt to load conf from %s", p_path);
103 
104     if ((p_file = fopen(p_path, "r")) != NULL)
105     {
106         /* read line by line */
107         while (fgets(line, CONF_MAX_LINE_LEN+1, p_file) != NULL)
108         {
109             if (line[0] == CONF_COMMENT)
110                 continue;
111 
112             p_name = strtok(line, CONF_DELIMITERS);
113 
114             if (NULL == p_name)
115             {
116                 continue;
117             }
118 
119             p_value = strtok(NULL, CONF_DELIMITERS);
120 
121             if (NULL == p_value)
122             {
123                 ALOGW("vnd_load_conf: missing value for name: %s", p_name);
124                 continue;
125             }
126 
127             p_entry = (conf_entry_t *)conf_table;
128 
129             while (p_entry->conf_entry != NULL)
130             {
131                 if (strcmp(p_entry->conf_entry, (const char *)p_name) == 0)
132                 {
133                     p_entry->p_action(p_name, p_value, p_entry->param);
134                     break;
135                 }
136 
137                 p_entry++;
138             }
139         }
140 
141         fclose(p_file);
142     }
143     else
144     {
145         ALOGI( "vnd_load_conf file >%s< not found", p_path);
146     }
147 }
148 
149