Android Hardware Abstraction Layer
OverrideLog.h
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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 Android logging macro(s) from
22  * /system/core/include/cutils/log.h. This header must be the first header
23  * included by a *.cpp file so the original Android macro can be replaced.
24  * Do not include this header in another header, because that will create
25  * unnecessary dependency.
26  *
27  ******************************************************************************/
28 #pragma once
29 
30 //Override Android's ALOGD macro by adding a boolean expression.
31 #define ALOGD(...) ((void)ALOGD_IF(appl_trace_level>=BT_TRACE_LEVEL_DEBUG, __VA_ARGS__))
32 
33 
34 #include <cutils/log.h> //define Android logging macros
35 #include "bt_types.h" //define various BT_TRACE_LEVEL_*
36 
37 
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41 
42 
43 extern unsigned char appl_trace_level; //defined in /external/libnfc-nci/
44 
45 
46 /*******************************************************************************
47 **
48 ** Function: initializeGlobalAppLogLevel
49 **
50 ** Description: Initialize and get global logging level from .conf or
51 ** Android property nfc.app_log_level. The Android property
52 ** overrides .conf variable.
53 **
54 ** Returns: Global log level:
55 ** BT_TRACE_LEVEL_NONE 0 * No trace messages to be generated
56 ** BT_TRACE_LEVEL_ERROR 1 * Error condition trace messages
57 ** BT_TRACE_LEVEL_WARNING 2 * Warning condition trace messages
58 ** BT_TRACE_LEVEL_API 3 * API traces
59 ** BT_TRACE_LEVEL_EVENT 4 * Debug messages for events
60 ** BT_TRACE_LEVEL_DEBUG 5 * Debug messages (general)
61 **
62 *******************************************************************************/
63 unsigned char initializeGlobalAppLogLevel ();
64 
65 
66 #ifdef __cplusplus
67 }
68 #endif