add device interface

Author: flensrocker

HISTORY

@@ -236,3 +236,7 @@ VDR Plugin 'dbus2vdr' Revision History
 
 2015-09-30: Version 26
 - make compatible with vdr 2.3.1
+
+2016-02-13: Version 28
+- add device interface
+

Makefile

@@ -56,7 +56,7 @@ DEFINES += -DPLUGIN_NAME_I18N='"$(PLUGIN)"'
 
 ### The object files (add further files here):
 
-OBJS = $(PLUGIN).o channel.o connection.o epg.o helper.o mainloop.o network.o object.o osd.o plugin.o recording.o remote.o sd-daemon.o setup.o shutdown.o skin.o status.o timer.o vdr.o
+OBJS = $(PLUGIN).o channel.o connection.o device.o epg.o helper.o mainloop.o network.o object.o osd.o plugin.o recording.o remote.o sd-daemon.o setup.o shutdown.o skin.o status.o timer.o vdr.o
 SWOBJS = libvdr-exitpipe.o libvdr-i18n.o libvdr-thread.o libvdr-tools.o shutdown-wrapper.o
 
 ### The main target:

README

@@ -94,6 +94,20 @@ Interface "channel"
 
   The returned array contains the channel number and the string from the channels.conf.
 
+Interface "device"
+-------------------
+- get current primary device
+  vdr-dbus-send.sh /Devices device.GetPrimary
+
+- request switch to primary device
+  vdr-dbus-send.sh /Devices device.RequestPrimary int32:index
+
+- list devices
+  vdr-dbus-send.sh /Devices device.List
+
+  The returned array contains the device index, number, a boolean value "hasDecoder",
+  a boolean value "isPrimary" and the name of the device.
+
 Interface "epg"
 ---------------
 - disable EIT scanner with timeout (default: 3600)

common.h

@@ -5,6 +5,7 @@
 
 #define DBUS_VDR_BUSNAME                  "de.tvdr.vdr"
 #define DBUS_VDR_CHANNEL_INTERFACE        DBUS_VDR_BUSNAME".channel"
+#define DBUS_VDR_DEVICE_INTERFACE         DBUS_VDR_BUSNAME".device"
 #define DBUS_VDR_EPG_INTERFACE            DBUS_VDR_BUSNAME".epg"
 #define DBUS_VDR_OSD_INTERFACE            DBUS_VDR_BUSNAME".osd"
 #define DBUS_VDR_PLUGIN_INTERFACE         DBUS_VDR_BUSNAME".plugin"

dbus2vdr.c

@@ -15,6 +15,7 @@
 #include "common.h"
 #include "connection.h"
 #include "channel.h"
+#include "device.h"
 #include "epg.h"
 #include "helper.h"
 #include "mainloop.h"
@@ -37,7 +38,7 @@
 #include "avahi-helper.h"
 
 
-static const char *VERSION        = "27";
+static const char *VERSION        = "28";
 static const char *DESCRIPTION    = trNOOP("control vdr via D-Bus");
 static const char *MAINMENUENTRY  = NULL;
 
@@ -117,6 +118,7 @@ static cString SetSessionEnv(const char *Name, cString &Store, const char *Optio
 static void AddAllObjects(cDBusConnection *Connection, bool EnableOSD)
 {
   Connection->AddObject(new cDBusChannels);
+  Connection->AddObject(new cDBusDevices);
   Connection->AddObject(new cDBusEpg);
   if (EnableOSD)
      Connection->AddObject(new cDBusOsdObject);
@@ -467,6 +469,12 @@ void cPluginDbus2vdr::MainThreadHook(void)
         raise(SIGSTOP);
         }
      }
+
+  int requestPrimaryDevice = cDBusDevices::RequestedPrimaryDevice(true);
+  if (requestPrimaryDevice >= 0) {
+     cControl::Shutdown();
+     cDevice::SetPrimaryDevice(requestPrimaryDevice + 1);
+     }
 }
 
 cString cPluginDbus2vdr::Active(void)

device.c

@@ -0,0 +1,122 @@
+#include "device.h"
+#include "common.h"
+#include "helper.h"
+
+#include <vdr/device.h>
+
+
+int cDBusDevices::_requestedPrimaryDevice = -1;
+cMutex cDBusDevices::_requestedPrimaryDeviceMutex;
+
+void cDBusDevices::SetPrimaryDeviceRequest(int index)
+{
+  cMutexLock MutexLock(&_requestedPrimaryDeviceMutex);
+  _requestedPrimaryDevice = index;
+}
+
+int cDBusDevices::RequestedPrimaryDevice(bool clear)
+{
+  cMutexLock MutexLock(&_requestedPrimaryDeviceMutex);
+  int ret = _requestedPrimaryDevice;
+  if (clear)
+     _requestedPrimaryDevice = -1;
+  return ret;
+}
+
+namespace cDBusDevicesHelper
+{
+  static const char *_xmlNodeInfo = 
+    "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\"\n"
+    "       \"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n"
+    "<node>\n"
+    "  <interface name=\""DBUS_VDR_DEVICE_INTERFACE"\">\n"
+    "    <method name=\"GetPrimary\">\n"
+    "      <arg name=\"index\"        type=\"i\" direction=\"out\"/>\n"
+    "      <arg name=\"number\"       type=\"i\" direction=\"out\"/>\n"
+    "      <arg name=\"hasDecoder\"   type=\"b\" direction=\"out\"/>\n"
+    "      <arg name=\"isPrimary\"    type=\"b\" direction=\"out\"/>\n"
+    "      <arg name=\"name\"         type=\"s\" direction=\"out\"/>\n"
+    "    </method>\n"
+    "    <method name=\"RequestPrimary\">\n"
+    "      <arg name=\"index\"        type=\"i\" direction=\"in\"/>\n"
+    "    </method>\n"
+    "    <method name=\"List\">\n"
+    "      <arg name=\"device\"       type=\"a(iibbs)\" direction=\"out\"/>\n"
+    "    </method>\n"
+    "  </interface>\n"
+    "</node>\n";
+
+  static void AddDevice(GVariantBuilder *Variant, const cDevice *Device, bool AsStruct)
+  {
+    gint32 index = -1;
+    gint32 number = -1;
+    gboolean hasDecoder = FALSE;
+    gboolean isPrimary = FALSE;
+    cString name = "";
+    if (Device != NULL) {
+       index = Device->CardIndex();
+       number = Device->DeviceNumber();
+       hasDecoder = Device->HasDecoder();
+       isPrimary = Device->IsPrimaryDevice();
+       name = Device->DeviceName();
+       cDBusHelper::ToUtf8(name);
+       }
+
+    if (AsStruct)
+       g_variant_builder_add(Variant, "(iibbs)", index, number, hasDecoder, isPrimary, *name);
+    else {
+       g_variant_builder_add(Variant, "i", index);
+       g_variant_builder_add(Variant, "i", number);
+       g_variant_builder_add(Variant, "b", hasDecoder);
+       g_variant_builder_add(Variant, "b", isPrimary);
+       g_variant_builder_add(Variant, "s", *name);
+       }
+  }
+
+  static void GetPrimary(cDBusObject *Object, GVariant *Parameters, GDBusMethodInvocation *Invocation)
+  {
+    GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE("(iibbs)"));
+    const cDevice *dev = cDevice::PrimaryDevice();
+    AddDevice(builder, dev, false);
+    g_dbus_method_invocation_return_value(Invocation, g_variant_builder_end(builder));
+    g_variant_builder_unref(builder);
+  }
+
+  static void RequestPrimary(cDBusObject *Object, GVariant *Parameters, GDBusMethodInvocation *Invocation)
+  {
+    gint32 index = -1;
+    g_variant_get(Parameters, "(i)", &index);
+    cDBusDevices::SetPrimaryDeviceRequest(index);
+    g_dbus_method_invocation_return_value(Invocation, NULL);
+  }
+
+  static void List(cDBusObject *Object, GVariant *Parameters, GDBusMethodInvocation *Invocation)
+  {
+    GVariantBuilder *array = g_variant_builder_new(G_VARIANT_TYPE("a(iibbs)"));
+
+    for (int i = 0; i < cDevice::NumDevices(); i++) {
+       const cDevice *dev = cDevice::GetDevice(i);
+       if (dev != NULL)
+          AddDevice(array, dev, true);
+       }
+
+    GVariantBuilder *builder = g_variant_builder_new(G_VARIANT_TYPE("(a(iibbs))"));
+    g_variant_builder_add_value(builder, g_variant_builder_end(array));
+    g_dbus_method_invocation_return_value(Invocation, g_variant_builder_end(builder));
+    g_variant_builder_unref(array);
+    g_variant_builder_unref(builder);
+  }
+}
+
+
+cDBusDevices::cDBusDevices(void)
+:cDBusObject("/Devices", cDBusDevicesHelper::_xmlNodeInfo)
+{
+  AddMethod("GetPrimary", cDBusDevicesHelper::GetPrimary);
+  AddMethod("RequestPrimary", cDBusDevicesHelper::RequestPrimary);
+  AddMethod("List", cDBusDevicesHelper::List);
+}
+
+cDBusDevices::~cDBusDevices(void)
+{
+}

device.h

@@ -0,0 +1,21 @@
+#ifndef __DBUS2VDR_DEVICE_H
+#define __DBUS2VDR_DEVICE_H
+
+#include "object.h"
+#include <vdr/thread.h>
+
+class cDBusDevices : public cDBusObject
+{
+private:
+  static cMutex _requestedPrimaryDeviceMutex;
+  static int _requestedPrimaryDevice;
+
+public:
+  static void SetPrimaryDeviceRequest(int index);
+  static int RequestedPrimaryDevice(bool clear);
+
+  cDBusDevices(void);
+  virtual ~cDBusDevices(void);
+};
+
+#endif