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/*
* (C) 2014 DTS, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <utils/Log.h>
#include <stdlib.h>
#include <string.h>
#include "effect_util.h"
#include <string.h>
#include <unistd.h>
#include <stdio.h>
#ifdef LOG_TAG
#undef LOG_TAG
#endif
#define LOG_TAG "effect_util"
/*#define LOG_NDEBUG 0*/
enum {
EQUALIZER,
VIRTUALIZER,
BASSBOOST,
};
static const char *paramList[10] = {
"eq_enable",
"virt_enable",
"bb_enable",
"eq_param_level0",
"eq_param_level1",
"eq_param_level2",
"eq_param_level3",
"eq_param_level4",
"virt_param_strength",
"bassboost_param_strength"
};
#define EFFECT_FILE "/data/misc/dts/effect"
#define MAX_LENGTH_OF_INTEGER_IN_STRING 13
#ifdef DTS_EAGLE
void create_effect_state_node(int device_id)
{
char prop[PROPERTY_VALUE_MAX];
int fd;
char buf[1024];
char path[PATH_MAX];
char value[MAX_LENGTH_OF_INTEGER_IN_STRING];
property_get("vendor.audio.use.dts_eagle", prop, "0");
if (!strncmp("true", prop, sizeof("true")) || atoi(prop)) {
ALOGV("create_effect_node for - device_id: %d", device_id);
strlcpy(path, EFFECT_FILE, sizeof(path));
snprintf(value, sizeof(value), "%d", device_id);
strlcat(path, value, sizeof(path));
if ((fd=open(path, O_RDONLY)) < 0) {
ALOGV("No File exist");
} else {
ALOGV("A file with the same name exist. So, not creating again");
return;
}
if ((fd=creat(path, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)) < 0) {
ALOGE("opening effect state node failed returned");
return;
}
chmod(path, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH);
snprintf(buf, sizeof(buf), "eq_enable=%d;virt_enable=%d;bb_enable=%d;eq_param_level0=%d;eq_param_level1=%d;eq_param_level2=%d;eq_param_level3=%d;eq_param_level4=%d;virt_param_strength=%d;bassboost_param_strength=%d", 0,0,0,0,0,0,0,0,0,0);
int n = write(fd, buf, strlen(buf));
ALOGV("number of bytes written: %d", n);
close(fd);
}
}
void update_effects_node(int device_id, int effect_type, int enable_or_set, int enable_disable, int strength, int eq_band, int eq_level)
{
char prop[PROPERTY_VALUE_MAX];
char buf[1024];
int fd = 0;
int paramValue = 0;
char path[PATH_MAX];
char value[MAX_LENGTH_OF_INTEGER_IN_STRING];
char parameterValue[MAX_LENGTH_OF_INTEGER_IN_STRING];
int keyParamIndex = -1; //index in the paramlist array which has to be updated
char *s1, *s2;
char resultBuf[1024];
int index1 = -1;
//ALOGV("value of device_id and effect_type is %d and %d", device_id, effect_type);
property_get("vendor.audio.use.dts_eagle", prop, "0");
if (!strncmp("true", prop, sizeof("true")) || atoi(prop)) {
strlcpy(path, EFFECT_FILE, sizeof(path));
snprintf(value, sizeof(value), "%d", device_id);
strlcat(path, value, sizeof(path));
switch (effect_type)
{
case EQUALIZER:
if (enable_or_set) {
keyParamIndex = 0;
paramValue = enable_disable;
} else {
switch (eq_band) {
case 0:
keyParamIndex = 3;
break;
case 1:
keyParamIndex = 4;
break;
case 2:
keyParamIndex = 5;
break;
case 3:
keyParamIndex = 6;
break;
case 4:
keyParamIndex = 7;
break;
default:
break;
}
paramValue = eq_level;
}
break;
case VIRTUALIZER:
if(enable_or_set) {
keyParamIndex = 1;
paramValue = enable_disable;
} else {
keyParamIndex = 8;
paramValue = strength;
}
break;
case BASSBOOST:
if (enable_or_set) {
keyParamIndex = 2;
paramValue = enable_disable;
} else {
keyParamIndex = 9;
paramValue = strength;
}
break;
default:
break;
}
if(keyParamIndex !=-1) {
FILE *fp;
fp = fopen(path,"r");
if (fp != NULL) {
memset(buf, 0, 1024);
memset(resultBuf, 0, 1024);
if (fgets(buf, 1024, fp) != NULL) {
s1 = strstr(buf, paramList[keyParamIndex]);
s2 = strstr(s1,";");
index1 = s1 - buf;
strncpy(resultBuf, buf, index1);
strncat(resultBuf, paramList[keyParamIndex], sizeof(resultBuf)-strlen(resultBuf)-1);
strncat(resultBuf, "=", sizeof(resultBuf)-strlen(resultBuf)-1);
snprintf(parameterValue, sizeof(parameterValue), "%d", paramValue);
strncat(resultBuf, parameterValue, sizeof(resultBuf)-strlen(resultBuf)-1);
if (s2)
strncat(resultBuf, s2, sizeof(resultBuf)-strlen(resultBuf)-1);
fclose(fp);
if ((fd=open(path, O_TRUNC|O_WRONLY)) < 0) {
ALOGV("opening file for writing failed");
return;
}
int n = write(fd, resultBuf, strlen(resultBuf));
close(fd);
ALOGV("number of bytes written: %d", n);
} else {
ALOGV("file could not be read");
fclose(fp);
}
} else
ALOGV("file could not be opened");
}
}
}
void remove_effect_state_node(int device_id)
{
char prop[PROPERTY_VALUE_MAX];
int fd;
char path[PATH_MAX];
char value[MAX_LENGTH_OF_INTEGER_IN_STRING];
property_get("vendor.audio.use.dts_eagle", prop, "0");
if (!strncmp("true", prop, sizeof("true")) || atoi(prop)) {
ALOGV("remove_state_notifier_node: device_id - %d", device_id);
strlcpy(path, EFFECT_FILE, sizeof(path));
snprintf(value, sizeof(value), "%d", device_id);
strlcat(path, value, sizeof(path));
if ((fd=open(path, O_RDONLY)) < 0) {
ALOGV("open effect state node failed");
} else {
ALOGV("open effect state node successful");
ALOGV("Remove the file");
close(fd);
remove(path);
}
}
}
#endif
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