Add support for bluetooth telephonyguppy_6.99.3guppy/6.99.36.99.3

This adds support for bluetooth telephony.
A big rework in the softmixer internals has been
mandatory, in order to support dynamic streams creation
and deletions.

Bluetooth telephony relies on the recent evolutions
of bluez-alsa, the most important one being the
support of HFP over Ofono. The softmixer opens
PCM ioplugs provided by bluez-alsa.
Bluetooth SCO needs 2 streams, one for listening
and the other for talking. These streams are created
upon requests sent by the hal-manager.
The hal manager subscribes for bluez-alsa events
and request the list of availalble transports.

For each "attach" transaction verb, the softmixer
maintains a list of the all created objects
(sources, sinks, zones, ramps, streams, and more)
Additionnally, it creates a new verb when the attach
succeeds, that verb is typically something like
"sco_XX:XX:XX:XX:XX:XX", and the only supported action
at the present time is {"action":"remove"}, that performs
all the cleanup of the registered objects.

Change-Id: I1b119e6c079e60daf771e63c083a1ef33a39f379
Signed-off-by: Thierry Bultel <thierry.bultel@iot.bzh>

1 files changed, 0 insertions, 71 deletions

diff --git a/plugins/alsa/alsa-bluez.c b/plugins/alsa/alsa-bluez.c
deleted file mode 100644
index 080c3c8..0000000
--- a/plugins/alsa/alsa-bluez.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * 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_remote_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);
-}
-
-