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-rw-r--r--plugins/alsa/alsa-api-source.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/plugins/alsa/alsa-api-source.c b/plugins/alsa/alsa-api-source.c
new file mode 100644
index 0000000..6315a14
--- /dev/null
+++ b/plugins/alsa/alsa-api-source.c
@@ -0,0 +1,84 @@
+/*
+ * 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>
+
+PUBLIC AlsaSndCtlT *ApiSourceFindSubdev(SoftMixerT *mixer, const char *target) {
+
+ // search for subdev into every registered source
+ for (int idx = 0; mixer->sources[idx]; idx++) {
+ if (mixer->sources[idx]->uid && !strcasecmp(mixer->sources[idx]->uid, target)) {
+ return mixer->sources[idx]->sndcard;
+ }
+ }
+ return NULL;
+}
+
+PUBLIC int ApiSourceAttach(SoftMixerT *mixer, AFB_ReqT request, const char *uid, json_object * argsJ) {
+
+ int index;
+ for (index = 0; index < mixer->max.sources; index++) {
+ if (!mixer->sources[index]) break;
+ }
+
+ if (index == mixer->max.sources) {
+ AFB_ReqFailF(request, "too-small", "mixer=%s max source=%d argsJ= %s", mixer->uid, mixer->max.sources, json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+
+ switch (json_object_get_type(argsJ)) {
+ long count;
+
+ case json_type_object:
+ mixer->sources[index] = ApiPcmAttachOne(mixer, uid, SND_PCM_STREAM_CAPTURE, argsJ);
+ if (!mixer->sources[index]) {
+ AFB_ReqFailF(request, "invalid-syntax", "mixer=%s invalid source= %s", mixer->uid, json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+ break;
+
+ case json_type_array:
+ count = json_object_array_length(argsJ);
+ if (count > (mixer->max.sources - count)) {
+ AFB_ReqFailF(request, "too-small", "mixer=%s max source=%d argsJ= %s", mixer->uid, mixer->max.sources, json_object_get_string(argsJ));
+ goto OnErrorExit;
+
+ }
+
+ for (int idx = 0; idx < count; idx++) {
+ json_object *sourceJ = json_object_array_get_idx(argsJ, idx);
+ mixer->sources[index + idx] = ApiPcmAttachOne(mixer, uid, SND_PCM_STREAM_CAPTURE, sourceJ);
+ if (!mixer->sources[index + idx]) {
+ AFB_ReqFailF(request, "invalid-syntax", "mixer=%s invalid source= %s", mixer->uid, json_object_get_string(sourceJ));
+ goto OnErrorExit;
+ }
+ }
+ break;
+ default:
+ AFB_ReqFailF(request, "invalid-syntax", "mixer=%s sources invalid argsJ= %s", mixer->uid, json_object_get_string(argsJ));
+ goto OnErrorExit;
+ }
+
+ return 0;
+
+OnErrorExit:
+ return -1;
+} \ No newline at end of file