BPI-CM9-Linux/aml-comp/multimedia/aml_audio_hal/utils/aml_audio_property.c

/*
 * Copyright (C) 2025 Amlogic Corporation.
 *
 * 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.
 */

#define LOG_TAG "audio_hw_property"
//#define LOG_NDEBUG 0
#include <string.h>
#include <stdlib.h>
#include <pthread.h>
#ifdef ANDROID_BUILD
#include <cutils/properties.h>
#endif
#include "aml_audio_property.h"
#include "aml_audio_log.h"

static pthread_mutex_t env_mutex = PTHREAD_MUTEX_INITIALIZER;

static unsigned int aml_replacechar(char *dst,const char *src)
{
    unsigned int len = 0;

    if (strlen(src) > PROPERTY_VALUE_MAX-1)
        return len;

    while (len < strlen(src)) {
        if (src[len] == '.')
            dst[len] = '_';
        else
            dst[len] = src[len];
        len++;
    }
    dst[len] = '\0';
    return len;
}

char *aml_audio_property_get_str(const char *key, char *value, const char *default_value) {
#ifdef ANDROID_BUILD
    int ret = property_get(key, value, default_value);
    if (ret > 0) {
        return value;
    } else {
        return NULL;
    }
#else
    int len = 0;
    char str[PROPERTY_VALUE_MAX] = {0};

    if (key == NULL || value == NULL) {
        return NULL;
    }
    aml_replacechar(str, key);

    pthread_mutex_lock(&env_mutex);
    char *result = getenv(str);
    if (result == NULL) {
        if (default_value) {
           len = strnlen(default_value, PROPERTY_VALUE_MAX - 1);
           memcpy(value, default_value, len);
           value[len] = '\0';
        } else {
            pthread_mutex_unlock(&env_mutex);
            return NULL;
        }
    } else {
        len = strnlen(result, PROPERTY_VALUE_MAX - 1);
        memcpy(value, result, len);
        value[len] = '\0';
    }
    pthread_mutex_unlock(&env_mutex);
    return value;
#endif
}

bool aml_audio_property_get_bool(const char *key, const bool default_value) {
#ifdef ANDROID_BUILD
    return property_get_bool(key, default_value);
#else
    int len = 0;
    char str[PROPERTY_VALUE_MAX] = {0};
    char buf[PROPERTY_VALUE_MAX] = {0};
    bool ret = default_value;

    if (key == NULL) {
        return ret;
    }

    aml_replacechar(str,key);
    pthread_mutex_lock(&env_mutex);
    char *result = getenv(str);
    if (result) {
        len = strnlen(result, PROPERTY_VALUE_MAX - 1);
        memcpy(buf, result, len);
        buf[len] = '\0';

        if (len == 1) {
            char ch = buf[0];
            if (ch == '0' || ch == 'n') {
                ret = false;
            } else if (ch == '1' || ch == 'y') {
                ret = true;
            }
        } else if (len > 1) {
            if (!strcmp(buf, "no") || !strcmp(buf, "false") || !strcmp(buf, "off")) {
                ret = false;
            } else if (!strcmp(buf, "yes") || !strcmp(buf, "true") || !strcmp(buf, "on")) {
                ret = true;
            }
        }
    }
    pthread_mutex_unlock(&env_mutex);
    return ret;
#endif
}

int aml_audio_property_get_int(const char *key, const int default_value) {
#ifdef ANDROID_BUILD
    return property_get_int32(key, default_value);
#else
    int len = 0;
    char str[PROPERTY_VALUE_MAX] = {0};
    char buf[PROPERTY_VALUE_MAX] = {0};
    int ret = default_value;

    if (key == NULL) {
        return ret;
    }
    aml_replacechar(str,key);

    pthread_mutex_lock(&env_mutex);
    char *result = getenv(str);
    if (result) {
       len = strnlen(result, PROPERTY_VALUE_MAX - 1);
       memcpy(buf, result, len);
       buf[len] = '\0';
       ret = atoi(buf);
    }
    pthread_mutex_unlock(&env_mutex);
    return ret;
#endif
}

float aml_audio_property_get_float(const char *key, const float default_value) {
    int len = 0;
    char str[PROPERTY_VALUE_MAX] = {0};
    char buf[PROPERTY_VALUE_MAX] = {0};
    float ret = default_value;

    if (key == NULL) {
        return default_value;
    }
    aml_replacechar(str,key);

    pthread_mutex_lock(&env_mutex);
    char *result = getenv(str);
    if (result) {
       len = strnlen(result, PROPERTY_VALUE_MAX - 1);
       memcpy(buf, result, len);
       buf[len] = '\0';
       ret = atof(buf);
    }
    pthread_mutex_unlock(&env_mutex);
    return ret;
}

void aml_audio_property_set(const char *key, const char *value)
{
    if (key == NULL || value == NULL) {
        AM_LOGE("setenv key or value is NULL");
        return;
    }

    pthread_mutex_lock(&env_mutex);
    if ((setenv(key, value, 1)) == 0) {
        AM_LOGI("setenv %s=%s success", key, value);
    } else {
        AM_LOGI("setenv %s=%s failed", key, value);
    }
    pthread_mutex_unlock(&env_mutex);
}

void aml_audio_property_unset(const char *key)
{
    if (key == NULL) {
        AM_LOGE("unsetenv key is NULL");
        return;
    }

    pthread_mutex_lock(&env_mutex);
    if ((unsetenv(key)) == 0) {
        AM_LOGI("unsetenv %s success", key);
    } else {
        AM_LOGI("unsetenv %s failed", key);
    }
    pthread_mutex_unlock(&env_mutex);
}