1/*
2 *	SiS 7018, Trident 4D Wave DX/NX, Acer Lab M5451 Sound Driver.
3 *	Copyright (c) 2002, 2008-2011 S.Zharski <imker@gmx.li>
4 *	Distributed under the terms of the MIT license.
5 *
6 */
7
8
9#include "Settings.h"
10
11#include <lock.h>
12#include <stdio.h>
13#include <stdlib.h>
14#include <string.h>
15
16
17bool gTraceOn = false;
18bool gTruncateLogFile = false;
19bool gAddTimeStamp = true;
20static char *gLogFilePath = NULL;
21mutex gLogLock;
22
23
24static
25void create_log()
26{
27	if (gLogFilePath == NULL)
28		return;
29
30	int flags = O_WRONLY | O_CREAT | ((gTruncateLogFile) ? O_TRUNC : 0);
31	int fd = open(gLogFilePath, flags, 0666);
32	if (fd >= 0)
33		close(fd);
34
35	mutex_init(&gLogLock, DRIVER_NAME"-logging");
36}
37
38
39void load_settings()
40{
41	void *handle = load_driver_settings(DRIVER_NAME);
42	if (handle == 0)
43		return;
44
45	gTraceOn = get_driver_boolean_parameter(handle, "trace", gTraceOn, true);
46	gTruncateLogFile = get_driver_boolean_parameter(handle,	"truncate_logfile",
47						gTruncateLogFile, true);
48	gAddTimeStamp = get_driver_boolean_parameter(handle, "add_timestamp",
49						gAddTimeStamp, true);
50	const char * logFilePath = get_driver_parameter(handle, "logfile",
51						NULL, "/var/log/" DRIVER_NAME ".log");
52	if (logFilePath != NULL) {
53		gLogFilePath = strdup(logFilePath);
54	}
55
56	unload_driver_settings(handle);
57
58	create_log();
59}
60
61
62void release_settings()
63{
64	if (gLogFilePath != NULL) {
65		mutex_destroy(&gLogLock);
66		free(gLogFilePath);
67	}
68}
69
70
71void SiS7018_trace(bool force, const char* func, const char *fmt, ...)
72{
73	if (!(force || gTraceOn)) {
74		return;
75	}
76
77	va_list arg_list;
78	static const char *prefix = DRIVER_NAME":";
79	static char buffer[1024];
80	char *buf_ptr = buffer;
81	if (gLogFilePath == NULL) {
82		strlcpy(buffer, prefix, sizeof(buffer));
83		buf_ptr += strlen(prefix);
84	}
85
86	if (gAddTimeStamp) {
87		bigtime_t time	= system_time();
88		uint32 msec		= time / 1000;
89		uint32 sec		= msec / 1000;
90		sprintf(buf_ptr, "%02" B_PRIu32 ".%02" B_PRIu32 ".%03" B_PRIu32 ":",
91				sec / 60, sec % 60, msec % 1000);
92		buf_ptr += strlen(buf_ptr);
93	}
94
95	if (func	!= NULL) {
96		sprintf(buf_ptr, "%s::", func);
97		buf_ptr += strlen(buf_ptr);
98	}
99
100	va_start(arg_list, fmt);
101	vsprintf(buf_ptr, fmt, arg_list);
102	va_end(arg_list);
103
104	if (gLogFilePath == NULL) {
105		dprintf("%s", buffer);
106		return;
107	}
108
109	mutex_lock(&gLogLock);
110	int fd = open(gLogFilePath, O_WRONLY | O_APPEND);
111	if (fd >= 0) {
112		write(fd, buffer, strlen(buffer));
113		close(fd);
114	}
115	mutex_unlock(&gLogLock);
116}
117
118