diff options
Diffstat (limited to 'HAL-afb/Scarlett-Focusrite')
| -rw-r--r-- | HAL-afb/Scarlett-Focusrite/CMakeLists.txt | 42 | ||||
| -rw-r--r-- | HAL-afb/Scarlett-Focusrite/ScarlettUsbHAL.c | 74 |
2 files changed, 116 insertions, 0 deletions
diff --git a/HAL-afb/Scarlett-Focusrite/CMakeLists.txt b/HAL-afb/Scarlett-Focusrite/CMakeLists.txt new file mode 100644 index 0000000..a2ca912 --- /dev/null +++ b/HAL-afb/Scarlett-Focusrite/CMakeLists.txt @@ -0,0 +1,42 @@ +########################################################################### +# Copyright 2015, 2016, 2017 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. +########################################################################### + + +# Add target to project dependency list +PROJECT_TARGET_ADD(hal-scalett-usb) + + # Define project Targets + ADD_LIBRARY(hal-scalett-usb MODULE ScarlettUsbHAL.c) + + # Binder exposes a unique public entry point + SET_TARGET_PROPERTIES(hal-scalett-usb PROPERTIES + PREFIX "afb-" + LABELS "BINDING" + LINK_FLAGS ${BINDINGS_LINK_FLAG} + OUTPUT_NAME ${TARGET_NAME} + ) + + # Library dependencies (include updates automatically) + TARGET_LINK_LIBRARIES(hal-scalett-usb + hal-interface + audio-interface + ) + + # installation directory + INSTALL(TARGETS hal-scalett-usb + LIBRARY DESTINATION ${BINDINGS_INSTALL_DIR})
\ No newline at end of file diff --git a/HAL-afb/Scarlett-Focusrite/ScarlettUsbHAL.c b/HAL-afb/Scarlett-Focusrite/ScarlettUsbHAL.c new file mode 100644 index 0000000..1ff5320 --- /dev/null +++ b/HAL-afb/Scarlett-Focusrite/ScarlettUsbHAL.c @@ -0,0 +1,74 @@ +/* + * 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" +#include "audio-interface.h" + +STATIC struct json_object* MasterOnOff (alsaHalCtlMapT *control, void* handle) { + static int powerStatus=0; + + if (! powerStatus) { + powerStatus = 1; + AFB_DEBUG ("Power Set to On"); + } else { + powerStatus = 0; + AFB_DEBUG ("Power Set to Off"); + } + + return NULL; +} + +// Map HAL hight sndctl with Alsa numid and optionally with a custom callback for non Alsa supported functionalities. +STATIC alsaHalMapT alsaHalMap[]= { + { .alsa={.control=Master_Playback_Volume,.numid=16, .name="Master-Vol" , .values=1,.minval=0,.maxval= 87 ,.step=0}, .info= "Master Playback Volume" }, + { .alsa={.control=PCM_Playback_Volume ,.numid=27, .name="Play-Vol" , .values=2,.minval=0,.maxval= 255,.step=0}, .info= "PCM Playback Volume" }, + { .alsa={.control=PCM_Playback_Switch ,.numid=17, .name="Play-Switch" , .values=1,.minval=0,.maxval= 1 ,.step=0}, .info= "Master Playback Switch" }, + { .alsa={.control=Capture_Volume ,.numid=12, .name="Capt-vol" , .values=2,.minval=0,.maxval= 31 ,.step=0}, .info= "Capture Volume" }, + { .alsa={.control=Master_OnOff_Switch ,.numid=99, .name="Power-Switch"}, .cb={.callback=MasterOnOff, .handle=NULL}, .info= "OnOff Global Switch"}, + { .alsa={.numid=0}, .cb={.callback=NULL, .handle=NULL}} /* marker for end of the array */ +} ; + +// HAL sound card mapping info +STATIC alsaHalSndCardT alsaHalSndCard = { + .name = "Scarlett 18i8 USB", // WARNING: name MUST match with 'aplay -l' + .info = "Hardware Abstraction Layer for Scarlett Focusrite USB professional music sound card", + .ctls = alsaHalMap, +}; + + +STATIC int sndServiceInit () { + int err; + AFB_DEBUG ("IntelHalBinding 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 = "scarlett-usb", + .init = sndServiceInit, + .verbs = halServiceApi, + .onevent = halServiceEvent, +}; |