OverrideLog.cpp revision e9df6ba5a8fcccf306a80b1670b423be8fe7746a 
1/******************************************************************************
2 *
3 *  Copyright (C) 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 *  Override the ALOGD(), ALOGE(), and other logging macros from
22 *  /system/core/include/cutils/log.h
23 *
24 ******************************************************************************/
25#include "OverrideLog.h"
26#include <cutils/properties.h>
27#include "config.h"
28#define LOG_TAG "BrcmNfcJni"
29
30
31/*******************************************************************************
32**
33** Function:        initializeGlobalAppLogLevel
34**
35** Description:     Initialize and get global logging level from .conf or
36**                  Android property nfc.app_log_level.  The Android property
37**                  overrides .conf variable.
38**
39** Returns:         Global log level:
40**                  BT_TRACE_LEVEL_NONE    0        * No trace messages to be generated
41**                  BT_TRACE_LEVEL_ERROR   1        * Error condition trace messages
42**                  BT_TRACE_LEVEL_WARNING 2        * Warning condition trace messages
43**                  BT_TRACE_LEVEL_API     3        * API traces
44**                  BT_TRACE_LEVEL_EVENT   4        * Debug messages for events
45**                  BT_TRACE_LEVEL_DEBUG   5        * Debug messages (general)
46**
47*******************************************************************************/
48unsigned char initializeGlobalAppLogLevel ()
49{
50    unsigned long num = 0;
51    char valueStr [PROPERTY_VALUE_MAX] = {0};
52
53    GetNumValue (NAME_APPL_TRACE_LEVEL, &num, sizeof(num));
54    appl_trace_level = (unsigned char) num;
55
56    int len = property_get ("nfc.app_log_level", valueStr, "");
57    if (len > 0)
58    {
59        //let Android property override .conf variable
60        sscanf (valueStr, "%lu", &num);
61        appl_trace_level = (unsigned char) num;
62    }
63
64    //0xFF is a special value used by the stack to query the current
65    //trace level; it does not change any trace level
66    if (appl_trace_level == 0xFF)
67        appl_trace_level = BT_TRACE_LEVEL_DEBUG;
68    ALOGD ("%s: level=%u", __FUNCTION__, appl_trace_level);
69    return appl_trace_level;
70}
71