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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.
*
*
* To find out which control your sound card uses
* aplay -l # Check sndcard name name in between []
* amixer -D hw:xx controls # get supported controls
* amixer -D "hw:3" cget numid=xx # get control settings
*
*/
#define _GNU_SOURCE
#include "hal-interface.h"
// Define few private tag for not standard functions
#define PCM_Volume_Multimedia 1000
#define PCM_Volume_Navigation 1001
#define PCM_Volume_Emergency 1002
// Default Values for MasterVolume Ramping
STATIC halVolRampT volRampMaster= {
.mode = RAMP_VOL_NORMAL,
.slave = Master_Playback_Volume,
.delay = 100*1000, // ramping delay in us
.stepDown=1,
.stepUp =1,
};
//Solvol Ramping Value can be customize by Audio Role and Hardwar card
STATIC halVolRampT volRampEmergency= {
.slave = Emergency_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 10,
};
STATIC halVolRampT volRampWarning= {
.slave = Warning_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 10,
};
STATIC halVolRampT volRampCustomHigh= {
.slave = CustomHigh_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampPhone= {
.slave = Phone_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampNavigation= {
.slave = Navigation_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampCustomMedium= {
.slave = CustomMedium_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampVideo= {
.slave = Video_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampStreaming= {
.slave = Streaming_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampMultimedia= {
.slave = Multimedia_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampRadio= {
.slave = Radio_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampCustomLow= {
.slave = CustomLow_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
STATIC halVolRampT volRampFallback= {
.slave = Fallback_Playback_Volume,
.delay = 50*1000, // ramping delay in us
.stepDown= 2,
.stepUp = 4,
};
// Map HAL hight sndctl with Alsa numid and optionally with a custom callback for non Alsa supported functionalities.
STATIC alsaHalMapT alsaHalMap[]= {
{ .tag=Master_Playback_Volume, . ctl={.name="PCM Playback Volume", .value=80 }},
{ .tag=PCM_Playback_Volume , .ctl={.name="PCM Playback Volume", .value=80 }},
{ .tag=PCM_Playback_Switch , .ctl={.name="PCM Playback Switch", .value=01 }},
{ .tag=Capture_Volume , .ctl={.name="Mic Capture Volume", .value=0 }},
// Sound card does not have hardware volume ramping
{ .tag=Master_Playback_Ramp , .cb={.callback=volumeRamp, .handle=&volRampMaster}, .info="Master Playback Volume Ramp",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .count=1, .minval=0, .maxval=100, .step=1, .name="Master_Ramp"}
},
// Implement Rampup Volume for Virtual Channels (0-100)
{ .tag=Emergency_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampEmergency}, .info="RampUp Emergency Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Emergency_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Warning_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampWarning}, .info="RampUp Warning Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Warning_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=CustomHigh_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampCustomHigh}, .info="RampUp CustomHigh Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="CustomHigh_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Phone_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampPhone}, .info="RampUp Phone Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Phone_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Navigation_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampNavigation}, .info="RampUp Navigation Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Navigation_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=CustomMedium_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampCustomMedium}, .info="RampUp CustomMedium Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="CustomMedium_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Video_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampVideo}, .info="RampUp Video Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Video_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Streaming_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampStreaming}, .info="RampUp Streaming Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Streaming_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Multimedia_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampMultimedia}, .info="RampUp Multimedia Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Multimedia_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Radio_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampRadio}, .info="RampUp Radio Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Radio_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=CustomLow_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampCustomLow}, .info="RampUp CustomLow Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="CustomLow_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
{ .tag=Fallback_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampFallback}, .info="RampUp Fallback Volume",
.ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Fallback_Ramp", .minval=0, .maxval=100, .step=1, .value=80 }
},
// Bind with existing ones created by ALSA configuration (and linked to softvol) [0-255]
{ .tag=Emergency_Playback_Volume ,
.ctl={.name="Emergency_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Warning_Playback_Volume ,
.ctl={.name="Warning_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=CustomHigh_Playback_Volume ,
.ctl={.name="CustomHigh_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Phone_Playback_Volume ,
.ctl={.name="Phone_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Navigation_Playback_Volume ,
.ctl={.name="Navigation_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=CustomMedium_Playback_Volume ,
.ctl={.name="CustomMedium_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Video_Playback_Volume ,
.ctl={.name="Video_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Streaming_Playback_Volume ,
.ctl={.name="Streaming_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Multimedia_Playback_Volume ,
.ctl={.name="Multimedia_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Radio_Playback_Volume ,
.ctl={.name="Radio_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=CustomLow_Playback_Volume ,
.ctl={.name="CustomLow_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=Fallback_Playback_Volume ,
.ctl={.name="Fallback_Volume",.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.count=2, .maxval=255, .value=204 }
},
{ .tag=EndHalCrlTag} /* marker for end of the array */
} ;
// HAL sound card mapping info
STATIC alsaHalSndCardT alsaHalSndCard = {
.name = "USB-Audio", // Match any USB audio sound card
.info = "Hardware Abstraction Layer for Generic USB Audio sound card",
.ctls = alsaHalMap,
};
STATIC int sndServiceInit() {
int err;
AFB_DEBUG("USB-Audio HAL Binding Init");
err = halServiceInit(afbBindingV2.api, &alsaHalSndCard);
return err;
}
// API prefix should be unique for each snd card
PUBLIC const struct afb_binding_v2 afbBindingV2 = {
.api = "usb-audio",
.init = sndServiceInit,
.verbs = halServiceApi,
.onevent = halServiceEvent,
};
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