#!/bin/bash
##########################################################################
# ovos-i2csound
#
# 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 default configurations
PULSE_SYSTEM=/etc/pulse/pulseaudio-system.pa
PULSE_DAEMON=/etc/pulse/pulseaudio-daemon.conf

# Scanning the I2C bus for know addresses 
is_1a=$(i2cdetect -y 1 0x1a 0x1a | egrep "(1a|UU)" | awk '{print $2}') # ReSpeaker 2-mic / WM8960
if [ "${is_1a}" == "1a" ] || [ "${is_1a}" == "UU" ] ; then
    RESPEAKER2=found
    echo "ReSpeaker 2-mic $RESPEAKER2"
fi

is_35=$(i2cdetect -y 1 0x35 0x35 | egrep "(35|UU)" | awk '{print $2}') # ReSpeaker 4-mic squared
if [ "${is_35}" == "35" ] || [ "${is_35}" == "UU" ] ; then
    RESPEAKER4=found
    echo "ReSpeaker 4-mic $RESPEAKER4"
fi

is_3b=$(i2cdetect -y 1 0x3b 0x3b | egrep "(3b|UU)" | awk '{print $2}') # ReSpeaker 4-mic lineair / 6-mic
if [ "${is_3b}" == "3b" ] || [ "${is_3b}" == "UU" ] ; then
    RESPEAKER6=found
    echo "ReSpeaker 6-mic $RESPEAKER6"
fi

is_4b=$(i2cdetect -y 1 0x4b 0x4b | egrep "(4b|UU)" | awk '{print $2}') # Adafruit
if [ "${is_4b}" == "4b" ] || [ "${is_4b}" == "UU" ] ; then
    ADAFRUIT=found
    echo "Adafruit $ADAFRUIT"
fi

is_2f=$(i2cdetect -y 1 0x2f 0x2f | egrep "(2f|UU)" | awk '{print $2}') # TAS5806
if [ "${is_2f}" == "2f" ] || [ "${is_2f}" == "UU" ] ; then
    TAS5806=found
    echo "Texas Instruments 5806 $TAS5806"
fi

is_04=$(i2cdetect -y -a 1 0x04 0x04 | egrep "(04|UU)" | awk '{print $2}') # SJ201 Led Ring
if [ "${is_04}" == "04" ] || [ "${is_04}" == "UU" ] ; then
    SJ201LED=found
    echo "Mark2 SJ201 Leds $SJ201LED"
fi


# Remove old configurations
if [ -f /etc/pulse/system.pa ] ; then
    rm /etc/pulse/system.pa
fi
if [ -f /etc/pulse/daemon.conf ] ; then
    rm /etc/pulse/daemon.conf
fi

if [ "$RESPEAKER2" == "found" ] && [ "$RESPEAKER4" != "found" ] ; then
    echo "Installing and configuring ReSpeaker 2-mic"
    dtoverlay seeed-2mic-voicecard
fi

if [ "${RESPEAKER6}" == "found" ] && [ "${RESPEAKER4}" != "found" ] ; then
    echo "Installing and configuring ReSpeaker 4-mic"
    dtoverlay seeed-4mic-voicecard
    PULSE_SYSTEM=/etc/pulse/seeed-voicecard-4mic-default.pa
    PULSE_DAEMON=/etc/pulse/seeed-voicecard-4mic-daemon.conf
fi

if [ "{$RESPEAKER6}" == "found" ] && [ "${RESPEAKER4}" == "found" ] ; then
    echo "Installing and configuring ReSpeaker 6mic"
    dtoverlay seeed-8mic-voicecard
    PULSE_SYSTEM=/etc/pulse/seeed-voicecard-8mic-default.pa
    PULSE_DAEMON=/etc/pulse/seeed-voicecard-8mic-daemon.conf
fi

if [ "$ADAFRUIT" ] ; then
    echo "Installing and configuring Adafruit"
    /usr/sbin/i2cset -y 1 0x4b 30 # Set maximum volume to 30
fi

if [ "$TAS5806" ] && [ "$SJ201LED" ]; then
    echo "Installing and configuring SJ201"
    # Initializing XMOS xvf3510
    dtoverlay xvf3510
    xvf3510-flash --direct "/usr/lib/firmware/xvf3510/app_xvf3510_int_spi_boot_v4_1_0.bin"
    # Initializing Texas Instruments 5806 Amplifier
    /usr/bin/tas5806-init
    # Initializing and resetting LED ring
    /usr/bin/sj201-reset-led
    # Reset FAN to low speed
    /usr/sbin/i2cset -a -y 1 0x04 101 30 i

    PULSE_DAEMON=/etc/pulse/mycroft-sj201-daemon.conf
fi

# Install pulseaudio files
echo "create pulse system file"
ln -s $PULSE_SYSTEM /etc/pulse/system.pa
echo "create pulse daemon file"
ln -s $PULSE_DAEMON /etc/pulse/daemon.conf