1 files changed, 207 insertions, 0 deletions
diff --git a/xbmc/platform/linux/powermanagement/UPowerSyscall.cpp b/xbmc/platform/linux/powermanagement/UPowerSyscall.cpp
new file mode 100644
index 0000000..27ed2f4
--- /dev/null
+++ b/xbmc/platform/linux/powermanagement/UPowerSyscall.cpp
@@ -0,0 +1,207 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#include "UPowerSyscall.h"
+
+#include "utils/log.h"
+
+CUPowerSource::CUPowerSource(const char *powerSource)
+{
+  if(powerSource == NULL)
+    m_powerSource = "";
+  else
+    m_powerSource = powerSource;
+
+  CVariant properties = CDBusUtil::GetAll("org.freedesktop.UPower", m_powerSource.c_str(), "org.freedesktop.UPower.Device");
+  m_isRechargeable = properties["IsRechargeable"].asBoolean();
+  Update();
+}
+
+CUPowerSource::~CUPowerSource() = default;
+
+void CUPowerSource::Update()
+{
+  CVariant properties = CDBusUtil::GetAll("org.freedesktop.UPower", m_powerSource.c_str(), "org.freedesktop.UPower.Device");
+  m_batteryLevel = properties["Percentage"].asDouble();
+}
+
+bool CUPowerSource::IsRechargeable()
+{
+  return m_isRechargeable;
+}
+
+double CUPowerSource::BatteryLevel()
+{
+  return m_batteryLevel;
+}
+
+CUPowerSyscall::CUPowerSyscall()
+{
+  CLog::Log(LOGINFO, "Selected UPower as PowerSyscall");
+
+  m_lowBattery = false;
+
+  //! @todo do not use dbus_connection_pop_message() that requires the use of a
+  //! private connection
+  if (m_connection.Connect(DBUS_BUS_SYSTEM, true))
+  {
+    dbus_connection_set_exit_on_disconnect(m_connection, false);
+
+    CDBusError error;
+    dbus_bus_add_match(m_connection, "type='signal',interface='org.freedesktop.UPower'", error);
+    dbus_connection_flush(m_connection);
+
+    if (error)
+    {
+      error.Log("UPower: Failed to attach to signal");
+      m_connection.Destroy();
+    }
+  }
+
+  m_CanPowerdown = false;
+  m_CanReboot    = false;
+
+  UpdateCapabilities();
+
+  EnumeratePowerSources();
+}
+
+bool CUPowerSyscall::Powerdown()
+{
+  return false;
+}
+
+bool CUPowerSyscall::Suspend()
+{
+  // UPower 0.9.1 does not signal sleeping unless you tell that its about to sleep...
+  CDBusMessage aboutToSleepMessage("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "AboutToSleep");
+  aboutToSleepMessage.SendAsyncSystem();
+
+  CDBusMessage message("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "Suspend");
+  return message.SendAsyncSystem();
+}
+
+bool CUPowerSyscall::Hibernate()
+{
+  // UPower 0.9.1 does not signal sleeping unless you tell that its about to sleep...
+  CDBusMessage aboutToSleepMessage("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "AboutToSleep");
+  aboutToSleepMessage.SendAsyncSystem();
+
+  CDBusMessage message("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "Hibernate");
+  return message.SendAsyncSystem();
+}
+
+bool CUPowerSyscall::Reboot()
+{
+  return false;
+}
+
+bool CUPowerSyscall::CanPowerdown()
+{
+  return m_CanPowerdown;
+}
+
+bool CUPowerSyscall::CanSuspend()
+{
+  return m_CanSuspend;
+}
+
+bool CUPowerSyscall::CanHibernate()
+{
+  return m_CanHibernate;
+}
+
+bool CUPowerSyscall::CanReboot()
+{
+  return m_CanReboot;
+}
+
+int CUPowerSyscall::BatteryLevel()
+{
+  unsigned int nBatteryCount  = 0;
+  double       subCapacity    = 0;
+  double       batteryLevel   = 0;
+
+  for (auto& itr : m_powerSources)
+  {
+    itr.Update();
+    if (itr.IsRechargeable())
+    {
+      nBatteryCount++;
+      subCapacity += itr.BatteryLevel();
+    }
+  }
+
+  if(nBatteryCount)
+    batteryLevel = subCapacity / (double)nBatteryCount;
+
+  return (int) batteryLevel;
+}
+
+void CUPowerSyscall::EnumeratePowerSources()
+{
+  CDBusMessage message("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "EnumerateDevices");
+  DBusMessage *reply = message.SendSystem();
+  if (reply)
+  {
+    char** source  = NULL;
+    int    length = 0;
+
+    if (dbus_message_get_args (reply, NULL, DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH, &source, &length, DBUS_TYPE_INVALID))
+    {
+      for (int i = 0; i < length; i++)
+      {
+        m_powerSources.emplace_back(source[i]);
+      }
+
+      dbus_free_string_array(source);
+    }
+  }
+}
+
+bool CUPowerSyscall::HasUPower()
+{
+  return CDBusUtil::TryMethodCall(DBUS_BUS_SYSTEM, "org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "EnumerateDevices");
+}
+
+bool CUPowerSyscall::PumpPowerEvents(IPowerEventsCallback *callback)
+{
+  bool result = false;
+
+  if (m_connection)
+  {
+    dbus_connection_read_write(m_connection, 0);
+    DBusMessagePtr msg(dbus_connection_pop_message(m_connection));
+
+    if (msg)
+    {
+      result = true;
+      if (dbus_message_is_signal(msg.get(), "org.freedesktop.UPower", "Sleeping"))
+        callback->OnSleep();
+      else if (dbus_message_is_signal(msg.get(), "org.freedesktop.UPower", "Resuming"))
+        callback->OnWake();
+      else if (dbus_message_is_signal(msg.get(), "org.freedesktop.UPower", "Changed"))
+      {
+        bool lowBattery = m_lowBattery;
+        UpdateCapabilities();
+        if (m_lowBattery && !lowBattery)
+          callback->OnLowBattery();
+      }
+      else
+        CLog::Log(LOGDEBUG, "UPower: Received an unknown signal {}",
+                  dbus_message_get_member(msg.get()));
+    }
+  }
+  return result;
+}
+
+void CUPowerSyscall::UpdateCapabilities()
+{
+  m_CanSuspend   = CDBusUtil::GetVariant("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "CanSuspend").asBoolean(false);
+  m_CanHibernate = CDBusUtil::GetVariant("org.freedesktop.UPower", "/org/freedesktop/UPower", "org.freedesktop.UPower", "CanHibernate").asBoolean(false);
+}