#!/bin/sh
# Filename:      bt-audio
# Purpose:       connect bluetooth audio device (e.g. headset) to local system
# Authors:       grml-team (grml.org), (c) Michael Prokop <mika@grml.org>
# Bug-Reports:   see http://grml.org/bugs/
# License:       This file is licensed under the GPL v2.
# Latest change: Son Aug 06 20:30:34 CEST 2006 [mika]
################################################################################

. /etc/grml/lsb-functions

if [ $UID != 0 ] ; then
   eerror "Need root privileges. Please run $0 as user root." ; eend 1
   exit 1
fi

HCID_CONF='/etc/bluetooth/bt_headset.conf'
[ -n "$PIN" ] || PIN='0000'

case "$1" in
  start)
   einfo "Starting bluetooth support."
    eindent

    if ! [ -r $HCID_CONF ] ; then
      ewarn "$HCID_CONF does not exist. Setting it up."
      cat > $HCID_CONF <<EOF
# Bluetooth headset configuration file created by bt-audio.

# HCId options
options {
	# Automatically initialize new devices
	autoinit yes;

	# Security Manager mode
	#   none - Security manager disabled
	#   auto - Use local PIN for incoming connections
	#   user - Always ask user for a PIN
	#
	security auto;

	# Pairing mode
	#   none  - Pairing disabled
	#   multi - Allow pairing with already paired devices
	#   once  - Pair once and deny successive attempts
	pairing multi;

	# Default PIN code for incoming connections
	passkey "0000";
}

# Default settings for HCI devices
device {
	# Local device name
	#   %d - device id
	#   %h - host name
	name "%h-%d";

	# Local device class
	class 0x3e0100;

	# Default packet type
	#pkt_type DH1,DM1,HV1;

	# Inquiry and Page scan
	iscan enable; pscan enable;

	# Default link mode
	#   none   - no specific policy
	#   accept - always accept incoming connections
	#   master - become master on incoming connections,
	#            deny role switch on outgoing connections
	lm accept;

	# Default link policy
	#   none    - no specific policy
	#   rswitch - allow role switch
	#   hold    - allow hold mode
	#   sniff   - allow sniff mode
	#   park    - allow park mode
	lp rswitch,hold,sniff,park;
}
EOF
    fi

    if pgrep dbus-daemon 1>/dev/null; then
      einfo "dbus already running." ; eend 0
    else
      einfo "Starting dbus."
      /etc/init.d/dbus start 1>/dev/null ; eend $?
    fi

    if pgrep hcid 1>/dev/null; then
      einfo "hicd already running." ; eend 0
    else
      einfo "Starting hcid."
       HCIINFO=$(mktemp)
       if /usr/sbin/hcid -f $HCID_CONF 1>$HCIINFO 2>&1 ; then
         rm -f $HCIINFO
         eend 0
       else
         eerror "hcid could not be started: `cat $HCIINFO`. Exiting."
         rm -f $HCIINFO
         eend 1
         exit 1
       fi
    fi

    einfo "Loading bluetooth modules:"
    for module in bluetooth ohci1394 hci_usb snd-bt-sco ; do
      eindent
      einfo "$module" ; modprobe $module ; eend $?
      eoutdent
    done

    einfo "Scanning for bluetooth audio device. Press the 'connect' button on the device!"
    einfo "Scanning might take a while. Searching..."
    SUCCESS=$(mktemp)
    ERROR=$(mktemp)

    if hcitool scan 1>${SUCCESS} 2>${ERROR} ; then
     if ! grep -q ':' $SUCCESS ; then
        eerror "Could not find any devices. Exiting." ; eend 1
        exit 1
     else
     ID=$(grep '[[:alnum:]][[:alnum:]]:' $SUCCESS | awk '{print $1}')
      if [ -n "$ID" ] ; then
       einfo "Success: connected device ${ID}." ; eend 0
       logger -t "bluez-connect" "connected human input device ${ID}"
       btsco -v $ID 1>/dev/null &
       # hcitool cc $ID
      else
       ewarn "Warning: searching for device succeded but no connection could be established."
      fi
     fi
    else
      eerror "Error: `cat $ERROR`" ; eend 1
    fi

    rm -f $SUCCESS $ERROR
    ;;
  stop)
    einfo "Stopping hcid."
    killall hcid ; eend $? # workaround because start-stop-daemon does not work :-/
    ewarn "Will not stop dbus as it might be used by other services." ; eend 0
    einfo "Disconnecting all human input devices."
    logger -t "bluez-connect" "disconnected all human input devices"
    hidd --killall ; eend $?
    ;;
  restart|force-reload)
    $0 stop
    sleep 1
    $0 start
    ;;
  test)
    if [ -r /usr/share/centericq/sms.wav ] ; then
      einfo "Trying to play /usr/share/centericq/sms.wav on headset:"
      echo -n "   "
      aplay -B 1000000 -D plughw:Headset  /usr/share/centericq/sms.wav 1>/dev/null ; eend $?
    else
      eerror "/usr/share/centericq/sms.wav does not exist. Can not test sound." ; eend 1
    fi
    ;;
  status)
    einfo "$0 - checking status:"
    eindent
    if pgrep hcid 1>/dev/null ; then
      einfo "hcid running." ; eend 0
      if [ -d /proc/asound/Headset ] ; then
        einfo "cat /proc/asound/Headset/*/info:"
        cat /proc/asound/Headset/*/info ; eend $?
      else
        eerror "Directory /proc/asound/Headset does not exist." ; eend 1
      fi
    else
      eerror "hcid not running." ; eend 1
    fi
    eoutdent
    ;;
  *)
    echo "Usage: $0 {start|stop|status|restart|force-reload|test}"
    exit 1
    ;;
esac

eoutdent

exit 0

## END OF FILE #################################################################