4 files changed, 109 insertions, 20 deletions

diff --git a/README b/README
index c4d330e..8ef41ed 100644
--- a/README
+++ b/README
@@ -112,3 +112,27 @@ Possible options are:
      vdr -P'imonlcd -d /dev/lcd0 -p ffdc'
 
 
+Plugin SVDRP commands
+---------------------
+* OFF - Suspend driver of display.
+* ON  - Resume driver of display.
+
+Use this commands like 
+    #> svdrpsend.pl PLUG imonlcd OFF
+    220 vdr SVDRP VideoDiskRecorder ....
+    250 driver suspended
+    221 vdr closing connection
+
+This commands can have follow responses 
+OFF :
+    250 driver suspended           
+    251 driver already suspended
+
+ON :
+    250 driver resumed
+    251 driver already resumed
+    554 driver could not resumed
+*
+    501 unknown command
+
+
diff --git a/imon.c b/imon.c
index 6f50fe0..d34cd49 100644
--- a/imon.c
+++ b/imon.c
@@ -122,20 +122,6 @@ ciMonLCD::ciMonLCD()
 
 ciMonLCD::~ciMonLCD() {
   this->close();
-
-  if(pFont) {
-    delete pFont;
-    pFont = NULL;
-  }
-  if(framebuf) {
-    delete framebuf;
-    framebuf = NULL;
-  }
-  if(backingstore) {
-    delete backingstore;
-    backingstore = NULL;
-  }
-
 }
 
 
@@ -249,6 +235,20 @@ void ciMonLCD::close()
 		::close(this->imon_fd);
     this->imon_fd = -1;
 	}
+
+  if(pFont) {
+    delete pFont;
+    pFont = NULL;
+  }
+  if(framebuf) {
+    delete framebuf;
+    framebuf = NULL;
+  }
+  if(backingstore) {
+    delete backingstore;
+    backingstore = NULL;
+  }
+
 }
 
 
@@ -272,6 +272,11 @@ bool ciMonLCD::flush()
 	unsigned char msb;
 	int offset = 0;
 
+  if(this->imon_fd<0) {
+		esyslog("iMonLCD: error writing to dead file descriptor");
+    return false;
+  }
+
 	/*
 	 * The display only provides for a complete screen refresh. If
 	 * nothing has changed, don't refresh.
@@ -484,7 +489,11 @@ bool ciMonLCD::icons(int state)
 bool ciMonLCD::SendCmd(const uint64_t & cmdData) {
 	unsigned int i;
 	unsigned char buf[8];
-
+  
+  if(this->imon_fd<0) {
+		esyslog("iMonLCD: error writing to dead file descriptor");
+    return false;
+  }
   //dsyslog("iMonLCD: writing : %08llx", cmdData);
 
 	/* Fill the send buffer. */
diff --git a/imonlcd.c b/imonlcd.c
index 67a70bc..b1782ad 100644
--- a/imonlcd.c
+++ b/imonlcd.c
@@ -30,7 +30,10 @@ private:
   char*              m_szDevice;
   ciMonWatch         m_dev;
   eProtocol          m_Protocol;
-
+  bool               m_bSuspend;
+protected:
+  bool resume();
+  bool suspend();
 public:
   cPluginImonlcd(void);
   virtual ~cPluginImonlcd();
@@ -57,6 +60,7 @@ public:
 cPluginImonlcd::cPluginImonlcd(void)
 : m_Protocol(ePROTOCOL_0038)
 {
+  m_bSuspend = true;
   statusMonitor = NULL;
   m_szDevice = NULL;
 }
@@ -140,10 +144,29 @@ bool cPluginImonlcd::Initialize(void)
   return true;
 }
 
+bool cPluginImonlcd::resume() {
+
+  if(m_bSuspend
+      && NULL != m_szDevice 
+      && 0 == m_dev.open(m_szDevice,m_Protocol)) {
+        m_bSuspend = false;
+      return true;
+  }
+  return false;
+}
+
+bool cPluginImonlcd::suspend() {
+  if(!m_bSuspend) {
+    m_dev.close();
+    m_bSuspend = true;
+    return true;
+  }
+  return false;
+}
+
 bool cPluginImonlcd::Start(void)
 {
-  if(NULL != m_szDevice 
-      && 0 == m_dev.open(m_szDevice,m_Protocol)) {
+  if(resume()) {
       statusMonitor = new ciMonStatusMonitor(&m_dev);
       if(NULL == statusMonitor){
         esyslog("iMonLCD: can't create ciMonStatusMonitor!");
@@ -215,14 +238,45 @@ bool cPluginImonlcd::Service(const char *Id, void *Data)
 const char **cPluginImonlcd::SVDRPHelpPages(void)
 {
   // Return help text for SVDRP commands this plugin implements
-  return NULL;
+  static const char *HelpPages[] = {
+    "ON\n"
+    "    Resume driver of display.",
+    "OFF\n"
+    "    Suspend driver of display.",
+    NULL
+    };
+  return HelpPages;
 }
 
 cString cPluginImonlcd::SVDRPCommand(const char *Command, const char *Option, int &ReplyCode)
 {
   // Process SVDRP commands this plugin implements
+  if(!strcasecmp(Command, "ON")) {
+    if(!m_bSuspend) {
+      ReplyCode=251; 
+      return "driver already resumed";
+    }
+    if(resume()) {
+      ReplyCode=250; 
+      return "driver resumed";
+    } else {
+      ReplyCode=554; 
+      return "driver could not resumed";
+    }
+  } else if(!strcasecmp(Command, "OFF")) {
+    if(suspend()) {
+      ReplyCode=250; 
+      return "driver suspended";
+    } else {
+      ReplyCode=251; 
+      return "driver already suspended";
+    }
+  } else { 
+    ReplyCode=501; 
+    return "unknown command"; 
+  }
+
   return NULL;
 }
 
 VDRPLUGINCREATOR(cPluginImonlcd); // Don't touch this!
-
diff --git a/watch.c b/watch.c
index 7441312..e2a68d1 100644
--- a/watch.c
+++ b/watch.c
@@ -101,6 +101,8 @@ ciMonWatch::~ciMonWatch()
 int ciMonWatch::open(const char* szDevice, eProtocol pro) {
     int iRet = ciMonLCD::open(szDevice,pro);
     if(0==iRet) {
+        m_bShutdown = false;
+        m_bUpdateScreen = true;
         Start();
     }
     return iRet;