automatically start bluetooth if conf defined

board/common/overlay/etc/bluetooth/main.conf

@@ -0,0 +1 @@
+/data/etc/bluetooth.conf

board/common/overlay/etc/init.d/S30dbus

@@ -1,5 +1,12 @@
 #!/bin/bash
 
+sys_btconf="/etc/bluetooth.conf"
+boot_btconf="/boot/bluetooth.conf"
+btconf="/data/etc/bluetooth.conf"
+
+# dbus is only used by bluez
+test -f $btconf || test -f $boot_btconf || test -f $sys_btconf || exit 0
+
 test -n "$os_version" || source /etc/init.d/base
 
 start() {

board/common/overlay/etc/init.d/S37bluetooth

@@ -1,5 +1,19 @@
 #!/bin/bash
 
+sys_conf="/etc/bluetooth.conf"
+boot_conf="/boot/bluetooth.conf"
+conf="/data/etc/bluetooth.conf"
+
+if ! [ -f $conf ]; then
+    if [ -f $boot_conf ]; then
+        cp $boot_conf $conf
+    elif [ -f $sys_conf ]; then
+        cp $sys_conf $conf
+    fi
+fi
+
+test -f $conf || exit 0
+
 test -n "$os_version" || source /etc/init.d/base
 
 hci=hci0
@@ -15,11 +29,12 @@ start() {
         count=$(($count + 1))
         if [ $count -ge 10 ]; then
             msg_fail "no device"
+            logger -t bluetooth -s "bluetooth device not available, rebooting"
+            reboot
             return 1
         fi
     done
 
-    hciconfig $hci up
     /usr/libexec/bluetooth/bluetoothd &>/dev/null &
     msg_done
 }

board/raspberrypi3/overlay/etc/init.d/S13btuart

@@ -1,5 +1,11 @@
 #!/bin/bash
 
+sys_conf="/etc/bluetooth.conf"
+boot_conf="/boot/bluetooth.conf"
+conf="/data/etc/bluetooth.conf"
+
+test -f $conf || test -f $boot_conf || test -f $sys_conf || exit 0
+
 test -n "$os_version" || source /etc/init.d/base
 
 function start() {
@@ -24,7 +30,7 @@ case "$1" in
 
     stop)
         msg_begin "Detaching UART bluetooth modem"
-        killall hciattach
+        killall hciattach &>/dev/null
         test $? == 0 && msg_done || msg_fail
         ;;