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/*
* Copyright(C) 2018 "IoT.bzh"
* Author Thierry Bultel <thierry.bultel@iot.bzh>
*
* 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 "alsa-bluez.h"
#include <stdbool.h>
#include <dlfcn.h>
#define ALSA_BLUEZ_PROXY_LIB "/usr/lib/alsa-lib/libasound_module_pcm_bluealsa_proxy.so"
#define ALSA_BLUEZ_PROXY_SETDEVICE "bluealsa_proxy_set_remote_device"
typedef int (*bluealsa_set_remote_device_ptr) (const char * interface, const char * device, const char * profile);
static bluealsa_set_remote_device_ptr bluealsa_proxy_set_remote_device = NULL;
void alsa_bluez_init() {
static bool initialized = false;
if (initialized)
goto failed;
#if SND_LIB_VERSION >= (1<<16|1<<8|6)
char errbuf[256];
void * dl = snd_dlopen(ALSA_BLUEZ_PROXY_LIB, RTLD_NOW, errbuf, 256);
#else
void * dl = snd_dlopen(ALSA_BLUEZ_PROXY_LIB, RTLD_NOW);
#endif
if (!dl) {
printf("Failed to open bluealsa proxy plugin\n");
goto failed;
}
void * func = snd_dlsym(dl, ALSA_BLUEZ_PROXY_SETDEVICE, SND_DLSYM_VERSION(SND_PCM_DLSYM_VERSION));
if (!func) {
printf("Unable to find %s symbol\n", ALSA_BLUEZ_PROXY_SETDEVICE);
goto failed;
}
bluealsa_proxy_set_remote_device = func;
initialized = true;
failed:
return;
}
int alsa_bluez_set_device(const char * interface, const char * device, const char * profile) {
if (!bluealsa_proxy_set_remote_device)
return -1;
return bluealsa_proxy_set_remote_device(interface,device,profile);
}
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