1 files changed, 72 insertions, 0 deletions
diff --git a/src/utils/qdroidutils.cpp b/src/utils/qdroidutils.cpp
new file mode 100644
index 0000000..4004352
--- /dev/null
+++ b/src/utils/qdroidutils.cpp
@@ -0,0 +1,72 @@
+#include "qdroidutils.h"
+
+#ifdef Q_OS_LINUX_ANDROID
+#include <cutils/android_reboot.h>
+#include <hardware/lights.h>
+#endif
+
+/*!
+ * Reboots the system. Does not return.
+ *
+ * \sa powerOffSystem()
+ */
+void QDroidUtils::rebootSystem()
+{
+#ifdef Q_OS_LINUX_ANDROID
+    (void)android_reboot(ANDROID_RB_RESTART, 0, 0);
+    qFatal("android_reboot returned");
+#else
+    qDebug("QDroidUtils::rebootSystem()");
+#endif
+}
+
+/*!
+ * Shuts down the system. Does not return.
+ *
+ * \sa rebootSystem()
+ */
+void QDroidUtils::powerOffSystem()
+{
+#ifdef Q_OS_LINUX_ANDROID
+    (void)android_reboot(ANDROID_RB_POWEROFF, 0, 0);
+    qFatal("android_reboot returned");
+#else
+    qDebug("QDroidUtils::powerOffSystem()");
+#endif
+}
+
+/*!
+ * Sets the display brightness (i.e. the intensity of the backlight)
+ * to \a value. A value of 255 requests maximum brightness, while 0 requests
+ * minimum (typically, the backlight turned off).
+ *
+ * Returns true on success.
+ */
+//### TBD: add the user/sensor setting as parameter!
+bool QDroidUtils::setDisplayBrightness(quint8 value)
+{
+#ifdef Q_OS_LINUX_ANDROID
+    const struct hw_module_t* module = 0;
+    if (hw_get_module(LIGHTS_HARDWARE_MODULE_ID, &module))
+        return false;
+    if (!module || !module->methods || !module->methods->open)
+        return false;
+
+    struct light_device_t* device = 0;
+    if (module->methods->open(module, LIGHT_ID_BACKLIGHT, (struct hw_device_t**)&device))
+        return false;
+    if (!device || !device->set_light || !device->common.close)
+        return false;
+
+    struct light_state_t state;
+    memset(&state, 0, sizeof(light_state_t));
+    state.color = 0xff000000 | (value << 16) | (value << 8) | value;
+    if (!device->set_light(device, &state))
+        return false;
+
+    device->common.close(&device->common);
+#else
+    qDebug("QDroidUtils::setDisplayBrightness(%i)", value);
+#endif
+    return true;
+}