/* * Copyright (C) 2016 "IoT.bzh" * Author Fulup Ar Foll * * 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[]= { // 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, };