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/*
* audio-hal
*
* Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
*
* 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.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include "tizen-audio-internal.h"
#ifdef __MIXER_PARAM_DUMP
static void __dump_mixer_param(char *dump, long *param, int size)
{
int i, len;
for (i = 0; i < size; i++) {
len = sprintf(dump, "%ld", *param);
if (len > 0)
dump += len;
if (i != size -1) {
*dump++ = ',';
}
param++;
}
*dump = '\0';
}
#endif
audio_return_t _mixer_control_init(audio_hal_t *ah)
{
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
pthread_mutex_init(&(ah->mixer.mutex), NULL);
return AUDIO_RET_OK;
}
audio_return_t _mixer_control_deinit(audio_hal_t *ah)
{
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
pthread_mutex_destroy(&(ah->mixer.mutex));
return AUDIO_RET_OK;
}
audio_return_t _mixer_control_set_param(audio_hal_t *ah, const char* ctl_name, snd_ctl_elem_value_t* param, int size)
{
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
/* TODO. */
return AUDIO_RET_OK;
}
audio_return_t _mixer_control_get_value(audio_hal_t *ah, const char *ctl_name, int *val)
{
snd_ctl_t *handle;
snd_ctl_elem_value_t *control;
snd_ctl_elem_id_t *id;
snd_ctl_elem_info_t *info;
snd_ctl_elem_type_t type;
int ret = 0, count = 0, i = 0;
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
pthread_mutex_lock(&(ah->mixer.mutex));
ret = snd_ctl_open(&handle, ALSA_DEFAULT_CARD, 0);
if (ret < 0) {
AUDIO_LOG_ERROR("snd_ctl_open error, %s\n", snd_strerror(ret));
pthread_mutex_unlock(&(ah->mixer.mutex));
return AUDIO_ERR_IOCTL;
}
// Get Element Info
snd_ctl_elem_id_alloca(&id);
snd_ctl_elem_info_alloca(&info);
snd_ctl_elem_value_alloca(&control);
snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_id_set_name(id, ctl_name);
snd_ctl_elem_info_set_id(info, id);
if (snd_ctl_elem_info(handle, info) < 0) {
AUDIO_LOG_ERROR("Cannot find control element: %s\n", ctl_name);
goto close;
}
snd_ctl_elem_info_get_id(info, id);
type = snd_ctl_elem_info_get_type(info);
count = snd_ctl_elem_info_get_count(info);
snd_ctl_elem_value_set_id(control, id);
if (snd_ctl_elem_read(handle, control) < 0) {
AUDIO_LOG_ERROR("snd_ctl_elem_read failed \n");
goto close;
}
switch (type) {
case SND_CTL_ELEM_TYPE_BOOLEAN:
*val = snd_ctl_elem_value_get_boolean(control, i);
break;
case SND_CTL_ELEM_TYPE_INTEGER:
for (i = 0; i < count; i++)
*val = snd_ctl_elem_value_get_integer(control, i);
break;
case SND_CTL_ELEM_TYPE_ENUMERATED:
for (i = 0; i < count; i++)
*val = snd_ctl_elem_value_get_enumerated(control, i);
break;
default:
AUDIO_LOG_WARN("unsupported control element type\n");
goto close;
}
snd_ctl_close(handle);
#ifdef AUDIO_DEBUG
AUDIO_LOG_INFO("get mixer(%s) = %d success", ctl_name, *val);
#endif
pthread_mutex_unlock(&(ah->mixer.mutex));
return AUDIO_RET_OK;
close:
AUDIO_LOG_ERROR("Error\n");
snd_ctl_close(handle);
pthread_mutex_unlock(&(ah->mixer.mutex));
return AUDIO_ERR_UNDEFINED;
}
audio_return_t _mixer_control_set_value(audio_hal_t *ah, const char *ctl_name, int val)
{
snd_ctl_t *handle;
snd_ctl_elem_value_t *control;
snd_ctl_elem_id_t *id;
snd_ctl_elem_info_t *info;
snd_ctl_elem_type_t type;
int ret = 0, count = 0, i = 0;
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
pthread_mutex_lock(&(ah->mixer.mutex));
ret = snd_ctl_open(&handle, ALSA_DEFAULT_CARD, 0);
if (ret < 0) {
AUDIO_LOG_ERROR("snd_ctl_open error, card: %s: %s", ALSA_DEFAULT_CARD, snd_strerror(ret));
pthread_mutex_unlock(&(ah->mixer.mutex));
return AUDIO_ERR_IOCTL;
}
// Get Element Info
snd_ctl_elem_id_alloca(&id);
snd_ctl_elem_info_alloca(&info);
snd_ctl_elem_value_alloca(&control);
snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_id_set_name(id, ctl_name);
snd_ctl_elem_info_set_id(info, id);
if (snd_ctl_elem_info(handle, info) < 0) {
AUDIO_LOG_ERROR("Cannot find control element: %s", ctl_name);
goto close;
}
snd_ctl_elem_info_get_id(info, id);
type = snd_ctl_elem_info_get_type(info);
count = snd_ctl_elem_info_get_count(info);
snd_ctl_elem_value_set_id(control, id);
snd_ctl_elem_read(handle, control);
switch (type) {
case SND_CTL_ELEM_TYPE_BOOLEAN:
for (i = 0; i < count; i++)
snd_ctl_elem_value_set_boolean(control, i, val);
break;
case SND_CTL_ELEM_TYPE_INTEGER:
for (i = 0; i < count; i++)
snd_ctl_elem_value_set_integer(control, i, val);
break;
case SND_CTL_ELEM_TYPE_ENUMERATED:
for (i = 0; i < count; i++)
snd_ctl_elem_value_set_enumerated(control, i, val);
break;
default:
AUDIO_LOG_WARN("unsupported control element type");
goto close;
}
snd_ctl_elem_write(handle, control);
snd_ctl_close(handle);
AUDIO_LOG_INFO("set mixer(%s) = %d success", ctl_name, val);
pthread_mutex_unlock(&(ah->mixer.mutex));
return AUDIO_RET_OK;
close:
AUDIO_LOG_ERROR("Error");
snd_ctl_close(handle);
pthread_mutex_unlock(&(ah->mixer.mutex));
return AUDIO_ERR_UNDEFINED;
}
audio_return_t _mixer_control_set_value_string(audio_hal_t *ah, const char* ctl_name, const char* value)
{
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
/* TODO. */
return AUDIO_RET_OK;
}
audio_return_t _mixer_control_get_element(audio_hal_t *ah, const char *ctl_name, snd_hctl_elem_t **elem)
{
AUDIO_RETURN_VAL_IF_FAIL(ah, AUDIO_ERR_PARAMETER);
AUDIO_RETURN_VAL_IF_FAIL(ctl_name, AUDIO_ERR_PARAMETER);
AUDIO_RETURN_VAL_IF_FAIL(elem, AUDIO_ERR_PARAMETER);
/* TODO. */
return AUDIO_RET_OK;
}
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