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      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