audio-tool/audio-config

#!/system/bin/sh
#
# Copyright (c) 2015 Nest Labs, Inc.
# All rights reserved.
#
# 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.
#
set -x

AUDIO_TOOL=/system/bin/audio-tool
TINYMIX="${AUDIO_TOOL} mix"

die() {
    echo "ERROR: $@" 1>&2
    exit 0
}

set_defaults() {
    # QCOM has 1000 mixer controls, and they are fragile. Merely observing
    # some of them causes crashes. Therefore we focus on a subset of controls
    # that we manipulate.

    ${TINYMIX} 'QUIN_MI2S_RX Audio Mixer MultiMedia1' 0 || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX1' 0 || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX2' 0 || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX3' 0 || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX4' 0 || die "failed to set mixer value"
    ${TINYMIX} 'DEC1 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'DEC1 Volume' 84 || die "failed to set mixer value"
    ${TINYMIX} 'DEC2 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'DEC3 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'DEC4 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'MultiMedia1 Mixer SLIM_0_TX' 0 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX1 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX2 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX3 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX4 MUX' ZERO || die "failed to set mixer value"
    ${TINYMIX} 'SLIM_0_TX Channels' One || die "failed to set mixer value"
}

config_single_mic_recording() {
    ${TINYMIX} 'MultiMedia1 Mixer SLIM_0_TX' 1 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM_0_TX Channels' One || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX1' 1 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX1 MUX' DEC1 || die "failed to set mixer value"
    ${TINYMIX} 'DEC1 MUX' DMIC1 || die "failed to set mixer value"
    ${TINYMIX} 'DEC1 Volume' 68 || die "failed to set mixer value"
}

config_single_other_mic_recording() {
    ${TINYMIX} 'MultiMedia1 Mixer SLIM_0_TX' 1 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM_0_TX Channels' One || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX3' 1 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX3 MUX' DEC3 || die "failed to set mixer value"
    ${TINYMIX} 'DEC3 MUX' DMIC3 || die "failed to set mixer value"
    ${TINYMIX} 'DEC3 Volume' 68 || die "failed to set mixer value"
}

config_four_mic_recording() {
    ${TINYMIX} 'MultiMedia1 Mixer SLIM_0_TX' 1 || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX1' 1  || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX2' 1  || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX3' 1  || die "failed to set mixer value"
    ${TINYMIX} 'AIF1_CAP Mixer SLIM TX4' 1  || die "failed to set mixer value"
    ${TINYMIX} 'SLIM_0_TX Channels' Four  || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX1 MUX' DEC1  || die "failed to set mixer value"
    ${TINYMIX} 'DEC1 MUX' DMIC1 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX2 MUX' DEC2 || die "failed to set mixer value"
    ${TINYMIX} 'DEC2 MUX' DMIC2 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX3 MUX' DEC3 || die "failed to set mixer value"
    ${TINYMIX} 'DEC3 MUX' DMIC3 || die "failed to set mixer value"
    ${TINYMIX} 'SLIM TX4 MUX' DEC4 || die "failed to set mixer value"
    ${TINYMIX} 'DEC4 MUX' DMIC4 || die "failed to set mixer value"
    if [ ! -z "$1" ]; then
      if [ $1 -gt 83 ] && [ $1 -lt 125 ] ; then
        ${TINYMIX} 'DEC1 Volume' $1 || die "failed to set mixer value"
        ${TINYMIX} 'DEC2 Volume' $1 || die "failed to set mixer value"
        ${TINYMIX} 'DEC3 Volume' $1 || die "failed to set mixer value"
        ${TINYMIX} 'DEC4 Volume' $1 || die "failed to set mixer value"
      fi
    fi
}

config_speaker_playback() {
    ${TINYMIX} 'QUIN_MI2S_RX Audio Mixer MultiMedia1' 1 || die "failed to set mixer value"
    if [ ! -z "$1" ]; then
      if [ $1 -gt 0 ] && [ $1 -lt 512 ] ; then
        ${TINYMIX} 'Speaker Driver Playback Volume' $1 || die "failed to set mixer value"
      fi
    fi
}

config_loopback() {
  config_four_mic_recording $1
  config_speaker_playback $2
}

usage() {
    cat <<EOF
usage: audio-config <USE-CASE>

Where <USE-CASE> may be one of:

    default, d, dflt - set mixers to what are (normally) the boot-up
    default values.

    1mic, 1 - configure for single DMIC recording.

    4mic, 4 - configure for 4x DMIC recording.

    loopback, l - configure for 4x DMIC + Playback.

    playback, p - configure for playback on speaker driver.

EOF
}

if [ $# -eq 0 ] ; then
    usage
    exit 0
fi

if [ $# -gt 3 ] ; then
    usage
    die "Too many argument given"
fi

set_defaults

case $1 in
default|d|dflt)
    ;;
1mic|1)
    config_single_mic_recording
    ;;
4mic|4)
    config_four_mic_recording $2
    ;;
playback|p)
    config_speaker_playback $2
    ;;
loopback|l)
    config_loopback $2 $3
    ;;
alt)
    config_single_other_mic_recording
    ;;
*)
    usage
    die "Invalid/unsupported argument"
    ;;
esac