diff --git a/include/android/configuration.h b/include/android/configuration.h
new file mode 100644
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--- /dev/null
+++ b/include/android/configuration.h
@@ -0,0 +1,364 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_CONFIGURATION_H
+#define ANDROID_CONFIGURATION_H
+
+#include <android/asset_manager.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct AConfiguration;
+typedef struct AConfiguration AConfiguration;
+
+enum {
+    ACONFIGURATION_ORIENTATION_ANY  = 0x0000,
+    ACONFIGURATION_ORIENTATION_PORT = 0x0001,
+    ACONFIGURATION_ORIENTATION_LAND = 0x0002,
+    ACONFIGURATION_ORIENTATION_SQUARE = 0x0003,
+
+    ACONFIGURATION_TOUCHSCREEN_ANY  = 0x0000,
+    ACONFIGURATION_TOUCHSCREEN_NOTOUCH  = 0x0001,
+    ACONFIGURATION_TOUCHSCREEN_STYLUS  = 0x0002,
+    ACONFIGURATION_TOUCHSCREEN_FINGER  = 0x0003,
+
+    ACONFIGURATION_DENSITY_DEFAULT = 0,
+    ACONFIGURATION_DENSITY_LOW = 120,
+    ACONFIGURATION_DENSITY_MEDIUM = 160,
+    ACONFIGURATION_DENSITY_TV = 213,
+    ACONFIGURATION_DENSITY_HIGH = 240,
+    ACONFIGURATION_DENSITY_XHIGH = 320,
+    ACONFIGURATION_DENSITY_XXHIGH = 480,
+    ACONFIGURATION_DENSITY_NONE = 0xffff,
+
+    ACONFIGURATION_KEYBOARD_ANY  = 0x0000,
+    ACONFIGURATION_KEYBOARD_NOKEYS  = 0x0001,
+    ACONFIGURATION_KEYBOARD_QWERTY  = 0x0002,
+    ACONFIGURATION_KEYBOARD_12KEY  = 0x0003,
+
+    ACONFIGURATION_NAVIGATION_ANY  = 0x0000,
+    ACONFIGURATION_NAVIGATION_NONAV  = 0x0001,
+    ACONFIGURATION_NAVIGATION_DPAD  = 0x0002,
+    ACONFIGURATION_NAVIGATION_TRACKBALL  = 0x0003,
+    ACONFIGURATION_NAVIGATION_WHEEL  = 0x0004,
+
+    ACONFIGURATION_KEYSHIDDEN_ANY = 0x0000,
+    ACONFIGURATION_KEYSHIDDEN_NO = 0x0001,
+    ACONFIGURATION_KEYSHIDDEN_YES = 0x0002,
+    ACONFIGURATION_KEYSHIDDEN_SOFT = 0x0003,
+
+    ACONFIGURATION_NAVHIDDEN_ANY = 0x0000,
+    ACONFIGURATION_NAVHIDDEN_NO = 0x0001,
+    ACONFIGURATION_NAVHIDDEN_YES = 0x0002,
+
+    ACONFIGURATION_SCREENSIZE_ANY  = 0x00,
+    ACONFIGURATION_SCREENSIZE_SMALL = 0x01,
+    ACONFIGURATION_SCREENSIZE_NORMAL = 0x02,
+    ACONFIGURATION_SCREENSIZE_LARGE = 0x03,
+    ACONFIGURATION_SCREENSIZE_XLARGE = 0x04,
+
+    ACONFIGURATION_SCREENLONG_ANY = 0x00,
+    ACONFIGURATION_SCREENLONG_NO = 0x1,
+    ACONFIGURATION_SCREENLONG_YES = 0x2,
+
+    ACONFIGURATION_UI_MODE_TYPE_ANY = 0x00,
+    ACONFIGURATION_UI_MODE_TYPE_NORMAL = 0x01,
+    ACONFIGURATION_UI_MODE_TYPE_DESK = 0x02,
+    ACONFIGURATION_UI_MODE_TYPE_CAR = 0x03,
+    ACONFIGURATION_UI_MODE_TYPE_TELEVISION = 0x04,
+    ACONFIGURATION_UI_MODE_TYPE_APPLIANCE = 0x05,
+
+    ACONFIGURATION_UI_MODE_NIGHT_ANY = 0x00,
+    ACONFIGURATION_UI_MODE_NIGHT_NO = 0x1,
+    ACONFIGURATION_UI_MODE_NIGHT_YES = 0x2,
+
+    ACONFIGURATION_SCREEN_WIDTH_DP_ANY = 0x0000,
+
+    ACONFIGURATION_SCREEN_HEIGHT_DP_ANY = 0x0000,
+
+    ACONFIGURATION_SMALLEST_SCREEN_WIDTH_DP_ANY = 0x0000,
+
+    ACONFIGURATION_MCC = 0x0001,
+    ACONFIGURATION_MNC = 0x0002,
+    ACONFIGURATION_LOCALE = 0x0004,
+    ACONFIGURATION_TOUCHSCREEN = 0x0008,
+    ACONFIGURATION_KEYBOARD = 0x0010,
+    ACONFIGURATION_KEYBOARD_HIDDEN = 0x0020,
+    ACONFIGURATION_NAVIGATION = 0x0040,
+    ACONFIGURATION_ORIENTATION = 0x0080,
+    ACONFIGURATION_DENSITY = 0x0100,
+    ACONFIGURATION_SCREEN_SIZE = 0x0200,
+    ACONFIGURATION_VERSION = 0x0400,
+    ACONFIGURATION_SCREEN_LAYOUT = 0x0800,
+    ACONFIGURATION_UI_MODE = 0x1000,
+    ACONFIGURATION_SMALLEST_SCREEN_SIZE = 0x2000,
+};
+
+/**
+ * Create a new AConfiguration, initialized with no values set.
+ */
+AConfiguration* AConfiguration_new();
+
+/**
+ * Free an AConfiguration that was previously created with
+ * AConfiguration_new().
+ */
+void AConfiguration_delete(AConfiguration* config);
+
+/**
+ * Create and return a new AConfiguration based on the current configuration in
+ * use in the given AssetManager.
+ */
+void AConfiguration_fromAssetManager(AConfiguration* out, AAssetManager* am);
+
+/**
+ * Copy the contents of 'src' to 'dest'.
+ */
+void AConfiguration_copy(AConfiguration* dest, AConfiguration* src);
+
+/**
+ * Return the current MCC set in the configuration.  0 if not set.
+ */
+int32_t AConfiguration_getMcc(AConfiguration* config);
+
+/**
+ * Set the current MCC in the configuration.  0 to clear.
+ */
+void AConfiguration_setMcc(AConfiguration* config, int32_t mcc);
+
+/**
+ * Return the current MNC set in the configuration.  0 if not set.
+ */
+int32_t AConfiguration_getMnc(AConfiguration* config);
+
+/**
+ * Set the current MNC in the configuration.  0 to clear.
+ */
+void AConfiguration_setMnc(AConfiguration* config, int32_t mnc);
+
+/**
+ * Return the current language code set in the configuration.  The output will
+ * be filled with an array of two characters.  They are not 0-terminated.  If
+ * a language is not set, they will be 0.
+ */
+void AConfiguration_getLanguage(AConfiguration* config, char* outLanguage);
+
+/**
+ * Set the current language code in the configuration, from the first two
+ * characters in the string.
+ */
+void AConfiguration_setLanguage(AConfiguration* config, const char* language);
+
+/**
+ * Return the current country code set in the configuration.  The output will
+ * be filled with an array of two characters.  They are not 0-terminated.  If
+ * a country is not set, they will be 0.
+ */
+void AConfiguration_getCountry(AConfiguration* config, char* outCountry);
+
+/**
+ * Set the current country code in the configuration, from the first two
+ * characters in the string.
+ */
+void AConfiguration_setCountry(AConfiguration* config, const char* country);
+
+/**
+ * Return the current ACONFIGURATION_ORIENTATION_* set in the configuration.
+ */
+int32_t AConfiguration_getOrientation(AConfiguration* config);
+
+/**
+ * Set the current orientation in the configuration.
+ */
+void AConfiguration_setOrientation(AConfiguration* config, int32_t orientation);
+
+/**
+ * Return the current ACONFIGURATION_TOUCHSCREEN_* set in the configuration.
+ */
+int32_t AConfiguration_getTouchscreen(AConfiguration* config);
+
+/**
+ * Set the current touchscreen in the configuration.
+ */
+void AConfiguration_setTouchscreen(AConfiguration* config, int32_t touchscreen);
+
+/**
+ * Return the current ACONFIGURATION_DENSITY_* set in the configuration.
+ */
+int32_t AConfiguration_getDensity(AConfiguration* config);
+
+/**
+ * Set the current density in the configuration.
+ */
+void AConfiguration_setDensity(AConfiguration* config, int32_t density);
+
+/**
+ * Return the current ACONFIGURATION_KEYBOARD_* set in the configuration.
+ */
+int32_t AConfiguration_getKeyboard(AConfiguration* config);
+
+/**
+ * Set the current keyboard in the configuration.
+ */
+void AConfiguration_setKeyboard(AConfiguration* config, int32_t keyboard);
+
+/**
+ * Return the current ACONFIGURATION_NAVIGATION_* set in the configuration.
+ */
+int32_t AConfiguration_getNavigation(AConfiguration* config);
+
+/**
+ * Set the current navigation in the configuration.
+ */
+void AConfiguration_setNavigation(AConfiguration* config, int32_t navigation);
+
+/**
+ * Return the current ACONFIGURATION_KEYSHIDDEN_* set in the configuration.
+ */
+int32_t AConfiguration_getKeysHidden(AConfiguration* config);
+
+/**
+ * Set the current keys hidden in the configuration.
+ */
+void AConfiguration_setKeysHidden(AConfiguration* config, int32_t keysHidden);
+
+/**
+ * Return the current ACONFIGURATION_NAVHIDDEN_* set in the configuration.
+ */
+int32_t AConfiguration_getNavHidden(AConfiguration* config);
+
+/**
+ * Set the current nav hidden in the configuration.
+ */
+void AConfiguration_setNavHidden(AConfiguration* config, int32_t navHidden);
+
+/**
+ * Return the current SDK (API) version set in the configuration.
+ */
+int32_t AConfiguration_getSdkVersion(AConfiguration* config);
+
+/**
+ * Set the current SDK version in the configuration.
+ */
+void AConfiguration_setSdkVersion(AConfiguration* config, int32_t sdkVersion);
+
+/**
+ * Return the current ACONFIGURATION_SCREENSIZE_* set in the configuration.
+ */
+int32_t AConfiguration_getScreenSize(AConfiguration* config);
+
+/**
+ * Set the current screen size in the configuration.
+ */
+void AConfiguration_setScreenSize(AConfiguration* config, int32_t screenSize);
+
+/**
+ * Return the current ACONFIGURATION_SCREENLONG_* set in the configuration.
+ */
+int32_t AConfiguration_getScreenLong(AConfiguration* config);
+
+/**
+ * Set the current screen long in the configuration.
+ */
+void AConfiguration_setScreenLong(AConfiguration* config, int32_t screenLong);
+
+/**
+ * Return the current ACONFIGURATION_UI_MODE_TYPE_* set in the configuration.
+ */
+int32_t AConfiguration_getUiModeType(AConfiguration* config);
+
+/**
+ * Set the current UI mode type in the configuration.
+ */
+void AConfiguration_setUiModeType(AConfiguration* config, int32_t uiModeType);
+
+/**
+ * Return the current ACONFIGURATION_UI_MODE_NIGHT_* set in the configuration.
+ */
+int32_t AConfiguration_getUiModeNight(AConfiguration* config);
+
+/**
+ * Set the current UI mode night in the configuration.
+ */
+void AConfiguration_setUiModeNight(AConfiguration* config, int32_t uiModeNight);
+
+/**
+ * Return the current configuration screen width in dp units, or
+ * ACONFIGURATION_SCREEN_WIDTH_DP_ANY if not set.
+ */
+int32_t AConfiguration_getScreenWidthDp(AConfiguration* config);
+
+/**
+ * Set the configuration's current screen width in dp units.
+ */
+void AConfiguration_setScreenWidthDp(AConfiguration* config, int32_t value);
+
+/**
+ * Return the current configuration screen height in dp units, or
+ * ACONFIGURATION_SCREEN_HEIGHT_DP_ANY if not set.
+ */
+int32_t AConfiguration_getScreenHeightDp(AConfiguration* config);
+
+/**
+ * Set the configuration's current screen width in dp units.
+ */
+void AConfiguration_setScreenHeightDp(AConfiguration* config, int32_t value);
+
+/**
+ * Return the configuration's smallest screen width in dp units, or
+ * ACONFIGURATION_SMALLEST_SCREEN_WIDTH_DP_ANY if not set.
+ */
+int32_t AConfiguration_getSmallestScreenWidthDp(AConfiguration* config);
+
+/**
+ * Set the configuration's smallest screen width in dp units.
+ */
+void AConfiguration_setSmallestScreenWidthDp(AConfiguration* config, int32_t value);
+
+/**
+ * Perform a diff between two configurations.  Returns a bit mask of
+ * ACONFIGURATION_* constants, each bit set meaning that configuration element
+ * is different between them.
+ */
+int32_t AConfiguration_diff(AConfiguration* config1, AConfiguration* config2);
+
+/**
+ * Determine whether 'base' is a valid configuration for use within the
+ * environment 'requested'.  Returns 0 if there are any values in 'base'
+ * that conflict with 'requested'.  Returns 1 if it does not conflict.
+ */
+int32_t AConfiguration_match(AConfiguration* base, AConfiguration* requested);
+
+/**
+ * Determine whether the configuration in 'test' is better than the existing
+ * configuration in 'base'.  If 'requested' is non-NULL, this decision is based
+ * on the overall configuration given there.  If it is NULL, this decision is
+ * simply based on which configuration is more specific.  Returns non-0 if
+ * 'test' is better than 'base'.
+ *
+ * This assumes you have already filtered the configurations with
+ * AConfiguration_match().
+ */
+int32_t AConfiguration_isBetterThan(AConfiguration* base, AConfiguration* test,
+        AConfiguration* requested);
+
+#ifdef __cplusplus
+};
+#endif
+
+#endif // ANDROID_CONFIGURATION_H