/* * 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 // 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, // HighLevel Audio Control List Master_Playback_Volume, Master_OnOff_Switch, Master_Playback_Ramp, PCM_Playback_Volume, PCM_Playback_Switch, Capture_Volume, EndHalCrlTag // used to compute number of ctls } halCtlsEnumT; PUBLIC int cbCheckResponse(struct afb_req request, int iserror, struct json_object *result) ; PUBLIC void pingtest(struct afb_req request); #endif /* AUDIO_INTERF_H */