1 files changed, 38 insertions, 0 deletions
diff --git a/android/hw-control.h b/android/hw-control.h
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--- /dev/null
+++ b/android/hw-control.h
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+/* Copyright (C) 2007-2008 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+#ifndef _android_hw_control_h
+#define _android_hw_control_h
+
+#include "qemu-common.h"
+
+/* a callback function called when the system wants to change the brightness
+ * of a given light. 'light' is a string which can be one of:
+ * 'lcd_backlight', 'button_backlight' or 'Keyboard_backlight'
+ *
+ * brightness is an integer (acceptable range are 0..255), however the
+ * default is around 105, and we probably don't want to dim the emulator's
+ * output at that level.
+ */
+typedef void  (*AndroidHwLightBrightnessFunc)( void*       opaque,
+                                               const char* light,
+                                               int         brightness );
+
+/* used to record a hw control 'client' */
+typedef struct {
+    AndroidHwLightBrightnessFunc  light_brightness;
+} AndroidHwControlFuncs;
+
+/* used to initialize the hardware control support */
+extern void  android_hw_control_init( void*                         opaque,
+                                      const AndroidHwControlFuncs*  funcs );
+
+#endif /* _android_hw_control_h */