sundtek: improved start, suspend and resume

packages/addons/driver/sundtek-mediatv/changelog.txt

@@ -1,3 +1,5 @@
+3.1.2
+  new addon settings option to enable suspend/resume driver actions
 3.1.1
   rebuild for OpenELEC-3.2
 3.0.6

packages/addons/driver/sundtek-mediatv/meta

@@ -20,7 +20,7 @@
 
 PKG_NAME="sundtek-mediatv"
 PKG_VERSION="3.1"
-PKG_REV="1"
+PKG_REV="2"
 PKG_ARCH="any"
 PKG_LICENSE="nonfree"
 PKG_SITE="http://support.sundtek.com/"

packages/addons/driver/sundtek-mediatv/settings-default.xml

@@ -6,6 +6,7 @@
   <setting id="ENABLE_HW_PID_FILTER" value="false" />
   <setting id="ENABLE_IR_RECEIVER" value="false" />
   <setting id="LOWEST_ADAPTER_NUM" value="0" />
+  <setting id="SUSPEND_DRIVER" value="true" />
   <setting id="ALLOW_NET_USE"  value="false" />
   <setting id="USE_NET_TUNERS" value="false" />
   <setting id="DEVICE1_IP"  value="" />

packages/addons/driver/sundtek-mediatv/source/bin/userspace-driver.sh

@@ -22,6 +22,18 @@
 
 . /etc/profile
 
+# start locking mechanism - allows only one instance to be run at a time
+SUNDTEK_LOCKFILE="/var/lock/userspace-driver-sundtek.lck"
+SUNDTEK_LOCKFD=99
+# obtain an exclusive lock
+exlock() { eval "exec $SUNDTEK_LOCKFD>\"$SUNDTEK_LOCKFILE\""; flock -x $SUNDTEK_LOCKFD; }
+# drop a lock
+unlock() { flock -u $SUNDTEK_LOCKFD; flock -xn $SUNDTEK_LOCKFD && rm -f "$SUNDTEK_LOCKFILE"; }
+# end locking mechanism
+
+# exclusive lock
+exlock
+
 net_tuner_num_fix() {
   local num=$1
 
@@ -337,3 +349,6 @@ if [ -z "$(pidof mediasrv)" ]; then
 fi
 
 logger -t Sundtek "### Sundtek ready ###"
+
+# unlock the lock
+unlock

packages/addons/driver/sundtek-mediatv/source/resources/language/English/strings.xml

@@ -8,6 +8,7 @@
   <string id="1030">Enable hardware PID filter</string>
   <string id="1035">Enable IR receiver</string>
   <string id="1040">Lowest adapter number (/dev/dvb/adapterX/)</string>
+  <string id="1050">Enable suspend/resume the driver</string>
 
   <string id="2000">Networking</string>
   <string id="2005">Share local tuner over network</string>

packages/addons/driver/sundtek-mediatv/source/resources/settings.xml

@@ -9,6 +9,7 @@
     <setting id="ENABLE_HW_PID_FILTER" type="bool"   label="1030" default="false" />
     <setting id="ENABLE_IR_RECEIVER"   type="bool"   label="1035" default="false" />
     <setting id="LOWEST_ADAPTER_NUM"   type="number" label="1040" default="0" />
+    <setting id="SUSPEND_DRIVER"       type="bool"   label="1050" default="true" />
   </category>
   <category label="2000" >
     <setting type="sep" />

packages/addons/driver/sundtek-mediatv/source/sleep.d/sundtek-mediatv.power

@@ -22,26 +22,42 @@
 
 . /etc/profile
 
-LOCKDIR="/var/lock/"
-LOCKFILE="$LOCKDIR/sundtek-mediatv"
+SUNDTEK_ADDON_DIR="$HOME/.xbmc/addons/driver.dvb.sundtek-mediatv"
+SUNDTEK_ADDON_HOME="$HOME/.xbmc/userdata/addon_data/driver.dvb.sundtek-mediatv"
+SUNDTEK_ADDON_SETTINGS="$SUNDTEK_ADDON_HOME/settings.xml"
 
-case "$1" in
-  hibernate|suspend)
-    if [ -n "$(pidof mediasrv)" ]; then
-      progress "Shutting down Sundtek DVB driver for suspending..."
-      mkdir -p "$LOCKDIR"
-      touch "$LOCKFILE"
-      killall -9 mediasrv
-    fi
-    ;;
+if [ ! -f "$SUNDTEK_ADDON_SETTINGS" ]; then
+  cp $SUNDTEK_ADDON_DIR/settings-default.xml $SUNDTEK_ADDON_SETTINGS
+fi
 
-  thaw|resume)
-    if [ -f "$LOCKFILE" ]; then
-      # driver started within Tvheadend/VDR
-      rm -f "$LOCKFILE"
-    fi
-    ;;
+mkdir -p /var/config
+cat "$SUNDTEK_ADDON_SETTINGS" | awk -F\" '{print $2"=\""$4"\""}' | sed '/^=/d' > /var/config/sundtek-addon.conf
+. /var/config/sundtek-addon.conf
 
-  *) exit $NA
-    ;;
-esac
+if [ "$SUSPEND_DRIVER" = "true" ]; then
+  LOCKDIR="/var/lock/"
+  LOCKFILE="$LOCKDIR/sundtek-mediatv"
+
+  case "$1" in
+    hibernate|suspend)
+      if [ -n "$(pidof mediasrv)" ]; then
+        progress "Shutting down Sundtek DVB driver for suspending..."
+        mkdir -p "$LOCKDIR"
+        touch "$LOCKFILE"
+        killall -9 mediasrv
+      fi
+      ;;
+
+    thaw|resume)
+      if [ -f "$LOCKFILE" ]; then
+        # driver started within Tvheadend/VDR
+        rm -f "$LOCKFILE"
+      fi
+      ;;
+
+    *) exit $NA
+      ;;
+  esac
+else
+  progress "Suspend/resume of Sundtek driver not enabled..."
+fi