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-rw-r--r--plugins/alsa/alsa-api-mixer.c150
1 files changed, 150 insertions, 0 deletions
diff --git a/plugins/alsa/alsa-api-mixer.c b/plugins/alsa/alsa-api-mixer.c
new file mode 100644
index 0000000..f1619c2
--- /dev/null
+++ b/plugins/alsa/alsa-api-mixer.c
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2018 "IoT.bzh"
+ * Author Fulup Ar Foll <fulup@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.
+ *
+ */
+
+#define _GNU_SOURCE // needed for vasprintf
+
+#include "alsa-softmixer.h"
+#include <string.h>
+
+// Fulup need to be cleanup with new controller version
+extern Lua2cWrapperT Lua2cWrap;
+
+// API
+
+static void MixerApiVerbCB(AFB_ReqT request) {
+ json_object *responseJ, *backendJ = NULL, *frontendJ = NULL, *zonesJ = NULL, *streamsJ = NULL;
+ // retrieve action handle from request and execute the request
+ json_object *argsJ = afb_request_json(request);
+ SoftMixerHandleT *mixerHandle = (SoftMixerHandleT*) afb_request_get_vcbdata(request);
+ int error;
+ int close = 0;
+
+ CtlSourceT *source = alloca(sizeof (CtlSourceT));
+ source->uid = mixerHandle->uid;
+ source->api = request->dynapi;
+ source->request = request;
+ source->context = mixerHandle;
+
+ error = wrap_json_unpack(argsJ, "{s?b s?o,s?o,s?o,s?o !}"
+ , "close", &close
+ , "backend", &backendJ
+ , "frontend", &frontendJ
+ , "zones", &zonesJ
+ , "streams", &streamsJ
+ );
+ if (error) {
+ AFB_ReqFailF(request, "MixerApiVerbCB", "missing 'uid|backend|frontend|zones|streams' mixer=%s", json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+
+ // Free attached resources and free mixer
+ if (close) {
+ AFB_ReqFailF(request, "MixerApiVerbCB", "(Fulup) Close action still to be done mixer=%s", json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+
+ if (backendJ) {
+ error = SndBackend(source, backendJ);
+ if (error) goto OnErrorExit;
+ }
+
+ if (frontendJ) {
+ error = SndFrontend(source, frontendJ);
+ if (error) goto OnErrorExit;
+ }
+
+ if (zonesJ) {
+ error = SndZones(source, zonesJ);
+ if (error) goto OnErrorExit;
+ }
+
+ if (streamsJ) {
+ error = SndStreams(source, streamsJ, &responseJ);
+ if (error) goto OnErrorExit;
+ }
+
+
+ AFB_ReqSucess(request, responseJ, mixerHandle->uid);
+ return;
+
+OnErrorExit:
+ return;
+}
+
+CTLP_LUA2C(_mixer_new_, source, argsJ, responseJ) {
+ SoftMixerHandleT *mixerHandle = calloc(1, sizeof (SoftMixerHandleT));
+ json_object *backendJ = NULL, *frontendJ = NULL, *zonesJ = NULL, *streamsJ = NULL;
+ int error;
+ assert(source->api);
+
+ if (json_object_get_type(argsJ) != json_type_object) {
+ AFB_ApiError(source->api, "_mixer_new_: invalid object type= %s", json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+
+ error = wrap_json_unpack(argsJ, "{ss,s?s,s?o,s?o,s?o,s?o !}"
+ , "uid", &mixerHandle->uid
+ , "info", &mixerHandle->info
+ , "backend", &backendJ
+ , "frontend", &frontendJ
+ , "zones", &zonesJ
+ , "streams", &streamsJ);
+ if (error) {
+ AFB_ApiNotice(source->api, "_mixer_new_ missing 'uid|backend|frontend|zones|streams' mixer=%s", json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+
+ // make sure string do not get deleted
+ mixerHandle->uid = strdup(mixerHandle->uid);
+ if (mixerHandle->info)mixerHandle->info = strdup(mixerHandle->info);
+
+ // create mixer verb within API.
+ error = afb_dynapi_add_verb(source->api, mixerHandle->uid, mixerHandle->info, MixerApiVerbCB, mixerHandle, NULL, 0);
+ if (error) {
+ AFB_ApiError(source->api, "_mixer_new_ mixer=%s fail to register API verb", mixerHandle->uid);
+ return -1;
+ }
+
+ // make sure sub command get access to mixer handle
+ source->context = mixerHandle;
+
+ if (backendJ) {
+ error = SndBackend(source, backendJ);
+ if (error) goto OnErrorExit;
+ }
+
+ if (frontendJ) {
+ error = SndFrontend(source, frontendJ);
+ if (error) goto OnErrorExit;
+ }
+
+ if (zonesJ) {
+ error = SndZones(source, zonesJ);
+ if (error) goto OnErrorExit;
+ }
+
+ if (streamsJ) {
+ error = SndStreams(source, streamsJ, responseJ);
+ if (error) goto OnErrorExit;
+ }
+
+ return 0;
+
+OnErrorExit:
+ return -1;
+} \ No newline at end of file