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/*
* Copyright (C) 2017 The Android Open Source Project
*
* 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_acdb"
//#define LOG_NDEBUG 0
#define LOG_NDDEBUG 0
#include <errno.h>
#include <stdlib.h>
#include <stdbool.h>
#include <dlfcn.h>
#include <log/log.h>
#include <cutils/str_parms.h>
#include <system/audio.h>
#include <tinyalsa/asoundlib.h>
#include "acdb.h"
#include <platform_api.h>
#define PLATFORM_CONFIG_KEY_SOUNDCARD_NAME "snd_card_name"
int acdb_init(int snd_card_num)
{
int result = -1;
char *cvd_version = NULL;
char *snd_card_name = NULL;
struct mixer *mixer = NULL;
struct acdb_platform_data *my_data = NULL;
if(snd_card_num < 0) {
ALOGE("invalid sound card number");
return result;
}
mixer = mixer_open(snd_card_num);
if (!mixer) {
ALOGE("%s: Unable to open the mixer card: %d", __func__,
snd_card_num);
goto cleanup;
}
my_data = calloc(1, sizeof(struct acdb_platform_data));
if (!my_data) {
ALOGE("failed to allocate acdb platform data");
goto cleanup;
}
list_init(&my_data->acdb_meta_key_list);
my_data->acdb_handle = dlopen(LIB_ACDB_LOADER, RTLD_NOW);
if (my_data->acdb_handle == NULL) {
ALOGE("%s: DLOPEN failed for %s", __func__, LIB_ACDB_LOADER);
goto cleanup;
}
ALOGV("%s: DLOPEN successful for %s", __func__, LIB_ACDB_LOADER);
my_data->acdb_init_v3 = (acdb_init_v3_t)dlsym(my_data->acdb_handle,
"acdb_loader_init_v3");
if (my_data->acdb_init_v3 == NULL)
ALOGE("%s: dlsym error %s for acdb_loader_init_v3", __func__, dlerror());
my_data->acdb_init_v2 = (acdb_init_v2_cvd_t)dlsym(my_data->acdb_handle,
"acdb_loader_init_v2");
if (my_data->acdb_init_v2 == NULL)
ALOGE("%s: dlsym error %s for acdb_loader_init_v2", __func__, dlerror());
my_data->acdb_init = (acdb_init_t)dlsym(my_data->acdb_handle,
"acdb_loader_init_ACDB");
if (my_data->acdb_init == NULL && my_data->acdb_init_v2 == NULL
&& my_data->acdb_init_v3 == NULL) {
ALOGE("%s: dlsym error %s for acdb_loader_init_ACDB", __func__, dlerror());
goto cleanup;
}
/* Get CVD version */
cvd_version = calloc(1, MAX_CVD_VERSION_STRING_SIZE);
if (!cvd_version) {
ALOGE("%s: Failed to allocate cvd version", __func__);
goto cleanup;
} else {
struct mixer_ctl *ctl = NULL;
int count = 0;
ctl = mixer_get_ctl_by_name(mixer, CVD_VERSION_MIXER_CTL);
if (!ctl) {
ALOGE("%s: Could not get ctl for mixer cmd - %s", __func__, CVD_VERSION_MIXER_CTL);
goto cleanup;
}
mixer_ctl_update(ctl);
count = mixer_ctl_get_num_values(ctl);
if (count > MAX_CVD_VERSION_STRING_SIZE)
count = MAX_CVD_VERSION_STRING_SIZE;
result = mixer_ctl_get_array(ctl, cvd_version, count);
if (result != 0) {
ALOGE("%s: ERROR! mixer_ctl_get_array() failed to get CVD Version", __func__);
goto cleanup;
}
}
/* Get Sound card name */
snd_card_name = strdup(mixer_get_name(mixer));
if (!snd_card_name) {
ALOGE("failed to allocate memory for snd_card_name");
result = -1;
goto cleanup;
}
if (my_data->acdb_init_v3)
result = my_data->acdb_init_v3(snd_card_name, cvd_version,
&my_data->acdb_meta_key_list);
else if (my_data->acdb_init_v2)
result = my_data->acdb_init_v2(snd_card_name, cvd_version, 0);
else
result = my_data->acdb_init();
cleanup:
if (NULL != my_data) {
if (my_data->acdb_handle)
dlclose(my_data->acdb_handle);
struct listnode *node;
struct meta_key_list *key_info;
list_for_each(node, &my_data->acdb_meta_key_list) {
key_info = node_to_item(node, struct meta_key_list, list);
free(key_info);
}
free(my_data);
}
mixer_close(mixer);
free(cvd_version);
free(snd_card_name);
return result;
}
int acdb_set_parameters(void *platform, struct str_parms *parms)
{
struct acdb_platform_data *my_data = (struct acdb_platform_data *)platform;
char value[128];
char *kv_pairs = str_parms_to_str(parms);
int ret = 0;
if (kv_pairs == NULL) {
ret = -EINVAL;
ALOGE("%s: key-value pair is NULL",__func__);
goto done;
}
ret = str_parms_get_str(parms, PLATFORM_CONFIG_KEY_SOUNDCARD_NAME,
value, sizeof(value));
if (ret >= 0) {
str_parms_del(parms, PLATFORM_CONFIG_KEY_SOUNDCARD_NAME);
my_data->snd_card_name = strdup(value);
ALOGV("%s: sound card name %s", __func__, my_data->snd_card_name);
}
done:
free(kv_pairs);
return ret;
}
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