summaryrefslogtreecommitdiffstats
path: root/AudioLogic
diff options
context:
space:
mode:
Diffstat (limited to 'AudioLogic')
-rw-r--r--AudioLogic/AudioLogicBinding.c84
-rw-r--r--AudioLogic/AudioLogicLib.c89
-rw-r--r--AudioLogic/AudioLogicLib.h50
-rw-r--r--AudioLogic/CMakeLists.txt36
-rw-r--r--AudioLogic/README.md18
5 files changed, 277 insertions, 0 deletions
diff --git a/AudioLogic/AudioLogicBinding.c b/AudioLogic/AudioLogicBinding.c
new file mode 100644
index 0000000..65943c0
--- /dev/null
+++ b/AudioLogic/AudioLogicBinding.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 "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
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <math.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#define _GNU_SOURCE // needed for vasprintf
+#include "AudioLogicLib.h"
+
+PUBLIC const struct afb_binding_interface *afbIface;
+
+STATIC void localping(struct afb_req request) {
+ json_object *query = afb_req_json(request);
+ afb_req_success(request, query, NULL);
+}
+
+/*
+ * array of the verbs exported to afb-daemon
+ */
+STATIC const struct afb_verb_desc_v1 binding_verbs[] = {
+ /* VERB'S NAME SESSION MANAGEMENT FUNCTION TO CALL SHORT DESCRIPTION */
+ { .name= "ping" , .session= AFB_SESSION_NONE, .callback= localping, .info= "Ping Binding" },
+ { .name= "setvolume", .session= AFB_SESSION_NONE, .callback= audioLogicSetVol, .info= "Set Volume" },
+ { .name= "getvolume", .session= AFB_SESSION_NONE, .callback= audioLogicGetVol, .info= "Get Volume" },
+ { .name= "monitor", .session= AFB_SESSION_NONE, .callback= audioLogicMonitor, .info= "Subscribe Volume Events" },
+ { .name= NULL } /* marker for end of the array */
+};
+
+/*
+ * description of the binding for afb-daemon
+ */
+STATIC const struct afb_binding binding_description = {
+ /* description conforms to VERSION 1 */
+ .type= AFB_BINDING_VERSION_1,
+ .v1= {
+ .prefix= "audio",
+ .info= "High Level Interface to Audio bindings",
+ .verbs = binding_verbs
+ }
+};
+
+// This receive all event this binding subscribe to
+PUBLIC void afbBindingV1ServiceEvent(const char *evtname, struct json_object *object) {
+
+ NOTICE (afbIface, "afbBindingV1ServiceEvent evtname=%s [msg=%s]", evtname, json_object_to_json_string(object));
+}
+
+// this is call when after all bindings are loaded
+PUBLIC int afbBindingV1ServiceInit(struct afb_service service) {
+
+ return (audioLogicInit(service));
+};
+
+/*
+ * activation function for registering the binding called by afb-daemon
+ */
+PUBLIC const struct afb_binding *afbBindingV1Register(const struct afb_binding_interface *itf) {
+ afbIface= itf;
+
+ return &binding_description; /* returns the description of the binding */
+}
+
diff --git a/AudioLogic/AudioLogicLib.c b/AudioLogic/AudioLogicLib.c
new file mode 100644
index 0000000..ebe241c
--- /dev/null
+++ b/AudioLogic/AudioLogicLib.c
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2016 "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
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <math.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#include "AudioLogicLib.h"
+static struct afb_service srvitf;
+
+#define _GNU_SOURCE // needed for vasprintf
+
+// this function is call after all binder are loaded and initialised
+PUBLIC int audioLogicInit (struct afb_service service) {
+ srvitf = service;
+ return 0;
+}
+
+// This callback is fired when afb_service_call for api/alsacore/subctl returns
+STATIC void alsaSubcribeCB (void *handle, int iserror, struct json_object *result) {
+ struct afb_req request = afb_req_unstore(handle);
+ struct json_object *x, *resp = NULL;
+ const char *info = NULL;
+
+ if (result) {
+ INFO (afbIface, "result=[%s]\n", json_object_to_json_string (result));
+ if (json_object_object_get_ex(result, "request", &x) && json_object_object_get_ex(x, "info", &x))
+ info = json_object_get_string(x);
+ if (!json_object_object_get_ex(result, "response", &resp)) resp = NULL;
+ }
+
+ // push message respond
+ if (iserror) afb_req_fail_f(request, "Fail", info);
+ else afb_req_success(request, resp, info);
+
+ // free calling request
+ afb_req_unref(request);
+}
+
+// Create and subscribe to alsacore ctl events
+PUBLIC void audioLogicMonitor(struct afb_req request) {
+
+ // save request in session as it might be used after return by callback
+ struct afb_req *handle = afb_req_store(request);
+
+ // push request to low level binding
+ if (!handle) afb_req_fail(request, "error", "out of memory");
+ else afb_service_call(srvitf, "alsacore", "subctl", json_object_get(afb_req_json(request)), alsaSubcribeCB, handle);
+
+ // success/failure messages return from callback
+}
+
+// Call when all bindings are loaded and ready to accept request
+PUBLIC void audioLogicGetVol(struct afb_req request) {
+
+ afb_req_success (request, NULL, NULL);
+ return;
+
+}
+
+PUBLIC void audioLogicSetVol(struct afb_req request) {
+
+
+ afb_req_success (request, NULL, NULL);
+ return;
+
+}
+
diff --git a/AudioLogic/AudioLogicLib.h b/AudioLogic/AudioLogicLib.h
new file mode 100644
index 0000000..21513fd
--- /dev/null
+++ b/AudioLogic/AudioLogicLib.h
@@ -0,0 +1,50 @@
+/*
+ * AlsaLibMapping -- provide low level interface with AUDIO lib (extracted from alsa-json-gateway code)
+ * Copyright (C) 2015,2016,2017, 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.
+ */
+
+
+// few coding convention
+typedef int BOOL;
+#ifndef PUBLIC
+ #define PUBLIC
+#endif
+#ifndef FALSE
+ #define FALSE 0
+#endif
+#ifndef TRUE
+ #define TRUE 1
+#endif
+#define STATIC static
+
+#ifndef AUDIOLIBMAPPING_H
+#define AUDIOLIBMAPPING_H
+
+#include <json-c/json.h>
+#include <afb/afb-binding.h>
+#include <afb/afb-service-itf.h>
+
+
+// import from AlsaAfbBinding
+extern const struct afb_binding_interface *afbIface;
+
+// import from AlsaAfbMapping
+PUBLIC void audioLogicSetVol (struct afb_req request);
+PUBLIC void audioLogicGetVol(struct afb_req request);
+PUBLIC void audioLogicMonitor(struct afb_req request);
+PUBLIC int audioLogicInit (struct afb_service service);
+
+#endif /* AUDIOLIBMAPPING_H */
+
diff --git a/AudioLogic/CMakeLists.txt b/AudioLogic/CMakeLists.txt
new file mode 100644
index 0000000..0b72b5c
--- /dev/null
+++ b/AudioLogic/CMakeLists.txt
@@ -0,0 +1,36 @@
+###########################################################################
+# Copyright 2015, 2016, 2017 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.
+###########################################################################
+
+
+INCLUDE_DIRECTORIES(${include_dirs})
+
+##################################################
+# AudioLogicBinding
+##################################################
+ADD_LIBRARY(audiologic-afb MODULE AudioLogicBinding.c AudioLogicLib.c)
+
+SET_TARGET_PROPERTIES(audiologic-afb PROPERTIES
+ PREFIX ""
+ LINK_FLAGS "-Wl,--version-script=${CMAKE_SOURCE_DIR}/export.map"
+)
+
+TARGET_LINK_LIBRARIES(audiologic-afb ${link_libraries})
+INSTALL(TARGETS audiologic-afb
+ LIBRARY DESTINATION ${binding_install_dir})
+
+
diff --git a/AudioLogic/README.md b/AudioLogic/README.md
new file mode 100644
index 0000000..399f905
--- /dev/null
+++ b/AudioLogic/README.md
@@ -0,0 +1,18 @@
+------------------------------------------------------------------------
+ AudioLogic High Level APIs
+------------------------------------------------------------------------
+
+Testing: (from project directory bindings)
+ * start binder: ~/opt/bin/afb-daemon --ldpaths=./build --roothttp=htdocs
+ * connect browser on http://localhost:1234
+
+ # Subscribe event for a given board
+ http://localhost:1234/api/audio/subscribe?devid=hw:0
+
+ # Increase Volume
+ http://localhost:1234/api/audio/setvol?devid=hw:0&pcm=master&vol=50%
+
+ # Get Volume
+ http://localhost:1234/api/audio/getvol?devid=hw:0&pcm=master
+
+ \ No newline at end of file