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+/*
+ * 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.
+ *
+ * reference:
+ * amixer contents; amixer controls;
+ * http://www.tldp.org/HOWTO/Alsa-sound-6.html
+ */
+
+#ifndef AUDIO_INTERF_H
+#define AUDIO_INTERF_H
+
+#define AFB_BINDING_VERSION 2
+
+#include <json-c/json.h>
+#include <afb/afb-binding.h>
+
+// Waiting for official macro from José
+#define AFB_GET_VERBOSITY afb_get_verbosity_v2()
+
+#ifndef PUBLIC
+ #define PUBLIC
+#endif
+#define STATIC static
+
+// Soft control have dynamically allocated numid
+#define CTL_AUTO -1
+
+typedef enum {
+ QUERY_QUIET =0,
+ QUERY_COMPACT =1,
+ QUERY_VERBOSE =2,
+ QUERY_FULL =3,
+} halQueryMode;
+
+// Most controls are MIXER but some vendor specific are possible
+typedef enum {
+ OUTVOL,
+ PCMVOL,
+ INVOL,
+ SWITCH,
+ ROUTE,
+ CARD,
+ ENUM,
+} halGroupEnumT;
+
+typedef enum {
+ READ,
+ WRITE,
+ RW,
+} halAclEnumT;
+
+typedef enum {
+ StartHalCrlTag=0,
+
+ // volume RAMP
+ Vol_Ramp_Set_Mode,
+ Vol_Ramp_Set_Delay,
+ Vol_Ramp_Set_Down,
+ Vol_Ramp_Set_Up,
+ Vol_Ramp_Set_Slave,
+
+ // HighLevel Audio Control List,
+ Master_Playback_Volume,
+ Master_Playback_Ramp,
+ PCM_Playback_Volume,
+ PCM_Playback_Switch,
+ Capture_Volume,
+ Master_OnOff_Switch,
+
+ // Application Virtual Channels
+ Multimedia_Playback_Volume,
+ Navigation_Playback_Volume,
+ Emergency_Playback_Volume,
+
+ EndHalCrlTag // used to compute number of ctls
+} halCtlsTagT;
+
+
+typedef enum {
+ RAMP_VOL_NONE = 0,
+ RAMP_VOL_NORMAL = 1,
+ RAMP_VOL_SMOOTH = 2,
+ RAMP_VOL_EMERGENCY = 3,
+
+ EndHalVolMod
+
+} halRampEnumT;
+
+PUBLIC void pingtest(struct afb_req request);
+extern const char *halVolRampModes[];
+extern const char *halCtlsLabels[];
+
+#endif /* AUDIO_INTERF_H */
+