diff options
Diffstat (limited to 'USB-Device/UsbDeviceHAL.c')
| -rw-r--r-- | USB-Device/UsbDeviceHAL.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/USB-Device/UsbDeviceHAL.c b/USB-Device/UsbDeviceHAL.c new file mode 100644 index 0000000..c0315f9 --- /dev/null +++ b/USB-Device/UsbDeviceHAL.c @@ -0,0 +1,170 @@ +/* + * 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 volRampGuidance= { + .slave = Guidance_Playback_Volume, + .delay = 50*1000, // ramping delay in us + .stepDown= 2, + .stepUp = 4, +}; + +STATIC halVolRampT volRampCommunication= { + .slave = Communication_Playback_Volume, + .delay = 50*1000, // ramping delay in us + .stepDown= 6, + .stepUp = 4, +}; + +STATIC halVolRampT volRampEntertainment= { + .slave = Entertainment_Playback_Volume, + .delay = 100*1000, // ramping delay in us + .stepDown= 4, + .stepUp = 2, +}; + +STATIC halVolRampT volRampNotification= { + .slave = Notification_Playback_Volume, + .delay = 50*1000, // ramping delay in us + .stepDown= 6, + .stepUp = 4, +}; + +STATIC halVolRampT volRampWarning= { + .slave = Warning_Playback_Volume, + .delay = 10*1000, // ramping delay in us + .stepDown= 6, + .stepUp = 10, +}; + +STATIC halVolRampT volRampSystem= { + .slave = System_Playback_Volume, + .delay = 20*100, // ramping delay in us + .stepDown= 6, + .stepUp = 10, +}; + + +STATIC halVolRampT volRampStartup= { + .slave = Startup_Playback_Volume, + .delay = 20*100, // ramping delay in us + .stepDown= 6, + .stepUp = 10, +}; + +STATIC halVolRampT volRampShutdown= { + .slave = Shutdown_Playback_Volume, + .delay = 20*100, // ramping delay in us + .stepDown= 6, + .stepUp = 10, +}; + + + +// 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=Guidance_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampGuidance}, .info="RampUp Guidance Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Guidance_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + { .tag=Entertainment_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampEntertainment}, .info="Rampup Entertainment Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Entertainment_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + { .tag=Notification_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampNotification}, .info="Ramp-up Notification Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .name="Notification_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + { .tag=Communication_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampCommunication}, .info="RampUp Communication Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER,.name="Communication_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + { .tag=Warning_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampWarning}, .info="Ramp-up Warning Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .name="Warning_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + + { .tag=System_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampSystem}, .info="Ramp-up System Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .name="System_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + { .tag=Startup_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampStartup}, .info="Ramp-up Startup Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .name="Statup_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + { .tag=Shutdown_Playback_Ramp, .cb={.callback=volumeRamp, .handle=&volRampShutdown}, .info="Ramp-up Shutdown Volume", + .ctl={.numid=CTL_AUTO, .type=SND_CTL_ELEM_TYPE_INTEGER, .name="Shutdown_Ramp", .minval=0, .maxval=100, .step=1, .value=80 } + }, + + // Bind with existing ones created by ALSA configuration (and linked to softvol) [0-255] + { .tag=Guidance_Playback_Volume , .ctl={.name="Guidance_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=Entertainment_Playback_Volume , .ctl={.name="Entertainment_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=Notification_Playback_Volume , .ctl={.name="Notification_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=Communication_Playback_Volume , .ctl={.name="Communications_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=Warning_Playback_Volume , .ctl={.name="Warning_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=System_Playback_Volume , .ctl={.name="System_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=Startup_Playback_Volume , .ctl={.name="Startup_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + { .tag=Shutdown_Playback_Volume , .ctl={.name="Shutdown_Volume", .minval=0, .maxval=255, .step=1, .value=204 } }, + // Could have similar controls for input side + + { .tag=EndHalCrlTag} /* marker for end of the array */ +} ; + +// HAL sound card mapping info +STATIC alsaHalSndCardT alsaHalSndCard = { + .name = "USB Audio Device", // WARNING: name MUST match with 'aplay -l' + .info = "Hardware Abstraction Layer for IntelHDA 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 = "usbaudio", + .init = sndServiceInit, + .verbs = halServiceApi, + .onevent = halServiceEvent, +}; |