#!/bin/bash -e
#
#     emu-script  --  A setup script
#
#     Author: Daniel Bertrand
#     Last Update:   Sept 30, 2001
#     Version:       0.7
#
# Description:
# -----------
# You can use this script to automatically configure the card 
# on module load
#
# To do so, add the following line to your module.config (or conf.module) file
# (and remove the leading '#'):
# 
# post-install emu10k1 /usr/local/etc/emu-script
#
# if you want to save mixer levels, you can use the following:
# 
# post-install emu10k1 /usr/local/etc/emu-script restore
# pre-remove emu10k1 /usr/local/etc/emu-script save
#
# configuration is done in the file 'emu10k1.conf'
#
# Requirements:
# ------------
# This script needs the following to be installed:
#
# -the emu10k1 tools: 
#      emu-config, emu-dspmgr and the dsp .bin files
# -aumix (installed by default on many Linux distros)
# 
#
# Optional argument processing:
# This script takes arguments which can override the settings in the
# config file. The following flags are supported:
#
# -d [yes|no]	use the digital output
# -t [yes|no]	enable the tone controls
# -3 [yes|no]	enable ac3 passthrough
# -i [yes|no]	enable livedrive ir
# -r [yes|no]	invert rear channels
# -m [yes|no]	enable multichannel mode
# -s [yes|no]	route all multichannel signals to sub
# -b [yes|no]	enable the 12dB front analog boost
#
# I don't include command line switches for enabling the various inputs
# or selecting if the card is 5.1 since I can't see being able to set or
# unset these on the fly being particularly useful.

# Default location of programs: 
BASE_PATH=/usr
DSPPATH=$BASE_PATH/share/emu10k1

DSPMGR=$BASE_PATH/bin/emu-dspmgr
CONFIG=$BASE_PATH/bin/emu-config

DRIVER_VERSION=` $DSPMGR  -q` 
 
SAVEARGS="$@"

load(){

# Source configurations
  . $BASE_PATH/etc/emu10k1.conf

# Pick up any coomand line overrides
while getopts d:t:i:r:m:s:b: OPT $SAVEARGS; do
	case "$OPT" in
	d)
		USE_DIGITAL_OUTPUT=$OPTARG
		;;
	t)
		ENABLE_TONE_CONTROL=$OPTARG
		;;
	3)
		AC3PASSTHROUGH=$OPTARG
		;;
	i)
		ENABLE_LIVEDRIVE_IR=$OPTARG
		;;
	r)
		INVERT_REAR=$OPTARG
		;;
	m)
		MULTICHANNEL=$OPTARG
		;;
	s)
		ROUTE_ALL_TO_SUB=$OPTARG
		;;
	b)
		ANALOG_FRONT_BOOST=$OPTARG
		;;
	*)
		exit 1
		;;
	esac
	shift 2
done

#set some variables
if [ "$USE_DIGITAL_OUTPUT" = yes ]; then
    FRONT="Digital"
    CENTER="Digital Center"
    LFE="Digital LFE"
else
    FRONT="Front"
    CENTER="Analog Center"
    LFE="Analog LFE"
fi

##function to enable an input
enable_input(){
    INPUT=$@
    $DSPMGR -a"$INPUT:$FRONT" -a"$INPUT:Rear"

}
input_volume(){
    INPUT=$1
    VOLUME=$2

    $DSPMGR -p"$VOLUME Vol" -l"$INPUT" -f$DSPPATH/vol_2.bin -c"Vol_L" -m"${VOLUME}_l" -c"Vol_R" -m"${VOLUME}_r"
}    

#Start by clearing everything and stopping the FX8010
$DSPMGR -x -z


#
# Livedrive and other special inputs can be enabled here by un-commenting
# the appropriate lines
# 


if [ "$ENABLE_CD_Spdif" = yes ]; then
    enable_input "CD-Spdif"
    input_volume "CD-Spdif" "dig1"
fi

if [ "$ENABLE_OPTICAL_SPDIF" = yes ]; then
    enable_input "Opt. Spdif"
    input_volume "Opt. Spdif" "dig2"
fi
if [ "$ENABLE_LINE2_MIC2" = yes ]; then 
    enable_input "Line2/Mic2"
    input_volume "Line2/Mic2" "line2"
fi
if [ "$ENABLE_RCA_SPDIF" = yes ]; then
    enable_input "RCA Spdif"
    input_volume "RCA Spdif" "dig3"
fi
if [ "$ENABLE_RCA_AUX" = yes ]; then
    enable_input "RCA Aux"
    input_volume "RCA Aux" "line3"
fi

if [ "$AC3PASSTHROUGH" = yes ]; then
    $DSPMGR -a"fx15:Digital L"
    $DSPMGR -a"fx15:Digital R"
    $DSPMGR -l"Digital" -f$DSPPATH/ac3pass.bin
fi


# Add common routes:

$DSPMGR -a"Pcm1:Rear" -a"Analog:ADC Rec"  -a"Analog:Rear" -a"Pcm:Rear"

#PCM volume gain
$DSPMGR -l"Pcm1" -l"Pcm" -f$DSPPATH/gain_4.bin

#Rear Volume Controls
#$DSPMGR -p"Master R" -l"Rear R" -f$DSPPATH/vol.bin -cVol -mvol_r
#$DSPMGR -p"Master L" -l"Rear L" -f$DSPPATH/vol.bin -cVol -mvol_l
$DSPMGR -p"Rear Vol R" -l"Rear" -f$DSPPATH/vol_2.bin -c"Vol_L" -mogain_l -c"Vol_R" -mogain_r

#digital/analog specific setup
if [ "$USE_DIGITAL_OUTPUT" = yes ]; then

    $DSPMGR -a"Analog:Digital"
    $DSPMGR -p"Digital Vol" -l"Digital" -f$DSPPATH/vol_2.bin -cVol_L -mvol_l -cVol_R -mvol_r
    
    enable_input "Pcm"
    input_volume "Pcm" "pcm"

#bogus routes to "ground" pcm to analog output:
    $DSPMGR -a"fx15:Front"
else
    if [ "$INVERT_REAR" = yes ] ; then
	$DSPMGR -l"Rear L" -f$DSPPATH/inv.bin
	$DSPMGR -l"Rear R" -f$DSPPATH/inv.bin
    fi
    if [ "$ANALOG_FRONT_BOOST" = yes ] ; then
	$CONFIG -B on
    else
	$CONFIG -B off
    fi
    $DSPMGR -a"Pcm:Front"

# with older driver, pcm:front volume is handle by the ac97 chip
    if [ "$DRIVER_VERSION" = 0 ]; then
	$DSPMGR -v"Pcm L:Rear L" -mpcm_l
	$DSPMGR -v"Pcm R:Rear R" -mpcm_r
    else
	enable_input "Pcm"
	input_volume "Pcm" "pcm" 	
    fi
fi

if [ "$ENABLE_TONE_CONTROL" = yes ] ; then

    if [ "$DRIVER_VERSION" = 0 ] ; then
	TONE=tone-old.bin
    else
	TONE=tone.bin
    fi

    $DSPMGR -l"Pcm L" -f$DSPPATH/$TONE -cbass -mbass -ctreble -mtreble
#The next 3 'inherit' the oss control of the above line:
    $DSPMGR -l"Pcm R" -f$DSPPATH/$TONE 
    $DSPMGR -l"Pcm1 L" -f$DSPPATH/$TONE
    $DSPMGR -l"Pcm1 R" -f$DSPPATH/$TONE
fi


# Multichannel set-up:
#

if [ "$MULTICHANNEL" = yes ] ; then

    # 5.1 main routes
    $DSPMGR -a"fx8-9:$FRONT" -a"fx10-11:Rear" -a"fx12:$CENTER" -a"fx13:$LFE"

    # Subwoofer += low frequencies from other channels
    if [ "$ROUTE_ALL_TO_SUB" = yes ] ; then
	$DSPMGR -a"fx8-9:$LFE" -a"fx10-11:$LFE" -a"fx12:$LFE" 
    fi

    GAIN=$DSPPATH/gain_6.bin

    # Use the full dynamic range of all inputs
    $DSPMGR -l"fx8" -l"fx9" -l"fx10" -l"fx11" -l"fx12" -l"fx13" -f$GAIN
fi


## Surround Sound Setup
if [ "$SURROUND" = yes ] ; then
    if [ "$CARD_IS_5_1" = no ] ; then
	emu-dspmgr -l"Front L" -l"Front R" -l"Analog Center" -f$DSPPATH/c2f.bin
    fi
    $DSPMGR -l"Pcm L" -l"Pcm R" -l"Fx10" -l"Fx11" -l"Fx12" -f$DSPPATH/surround.bin
    $DSPMGR -r"Analog:Rear" -r"Pcm:Rear"
elif [ "$PROLOGIC" = yes ] ; then
    if [ "$CARD_IS_5_1" = no ] ; then
	emu-dspmgr -l"Front L" -l"Front R" -l"Analog Center" -f$DSPPATH/c2f.bin
    fi
    $DSPMGR -l"Pcm L" -l"Pcm R" -l"Fx10" -l"Fx11" -l"Fx12" -f$DSPPATH/prologic.bin
    $DSPMGR -r"Analog:Rear" -r"Pcm:Rear"
fi


# Need to toggle third output on 5.1 cards

if [ "$CARD_IS_5_1" = yes ] ; then
    if [ "$USE_DIGITAL_OUTPUT" = yes ] ; then
	$CONFIG -d
    else
	$CONFIG -a
    fi
fi

# See if we should enable IR

if [ "$ENABLE_LIVEDRIVE_IR" = yes ] ; then
     $CONFIG -i
fi

# Restart the FX8010
$DSPMGR -y

}

case "$1" in

	restore | restart)
                load
		# restore mixer settings
		/usr/bin/umix -l >/dev/null 2>&1
                ;;
        store | save | stop)
		# save mixer settings
		/usr/bin/umix -s >/dev/null 2>&1
		;;
        *)
		load
esac