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diff --git a/minui/include/minui/minui.h b/minui/include/minui/minui.h
new file mode 100644
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+++ b/minui/include/minui/minui.h
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+/*
+ * Copyright (C) 2007 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 _MINUI_H_
+#define _MINUI_H_
+
+#ifndef TW_USE_MINUI_21
+
+#include <sys/types.h>
+
+#include <functional>
+#include <string>
+
+//
+// Graphics.
+//
+
+struct GRSurface {
+    int width;
+    int height;
+    int row_bytes;
+    int pixel_bytes;
+    unsigned char* data;
+};
+
+struct GRFont {
+    GRSurface* texture;
+    int char_width;
+    int char_height;
+};
+
+int gr_init();
+void gr_exit();
+
+int gr_fb_width();
+int gr_fb_height();
+
+void gr_flip();
+void gr_fb_blank(bool blank);
+
+void gr_clear();  // clear entire surface to current color
+void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
+void gr_fill(int x1, int y1, int x2, int y2);
+
+void gr_texticon(int x, int y, GRSurface* icon);
+#ifdef TW_NO_MINUI_CUSTOM_FONTS
+void gr_text(int x, int y, const char *s, bool bold);
+int gr_measure(const char *s);
+void gr_font_size(int *x, int *y);
+void gr_set_font(__attribute__ ((unused))const char* name);
+#else
+
+const GRFont* gr_sys_font();
+int gr_init_font(const char* name, GRFont** dest);
+void gr_text(const GRFont* font, int x, int y, const char *s, bool bold);
+int gr_measure(const GRFont* font, const char *s);
+void gr_font_size(const GRFont* font, int *x, int *y);
+#endif
+
+void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy);
+unsigned int gr_get_width(GRSurface* surface);
+unsigned int gr_get_height(GRSurface* surface);
+
+//
+// Input events.
+//
+
+struct input_event;
+
+#ifdef TW_USE_MINUI_WITH_DATA
+typedef int (*ev_callback)(int fd, uint32_t epevents, void* data);
+typedef int (*ev_set_key_callback)(int code, int value, void* data);
+
+int ev_init(ev_callback input_cb, void* data);
+int ev_add_fd(int fd, ev_callback cb, void* data);
+int ev_sync_key_state(ev_set_key_callback set_key_cb, void* data);
+#else
+using ev_callback = std::function<int(int fd, uint32_t epevents)>;
+using ev_set_key_callback = std::function<int(int code, int value)>;
+
+int ev_init(ev_callback input_cb);
+int ev_add_fd(int fd, ev_callback cb);
+int ev_sync_key_state(const ev_set_key_callback& set_key_cb);
+#endif
+void ev_exit();
+void ev_iterate_available_keys(const std::function<void(int)>& f);
+
+// 'timeout' has the same semantics as poll(2).
+//    0 : don't block
+//  < 0 : block forever
+//  > 0 : block for 'timeout' milliseconds
+int ev_wait(int timeout);
+
+int ev_get_input(int fd, uint32_t epevents, input_event* ev);
+void ev_dispatch();
+int ev_get_epollfd();
+
+//
+// Resources
+//
+
+bool matches_locale(const std::string& prefix, const std::string& locale);
+
+// res_create_*_surface() functions return 0 if no error, else
+// negative.
+//
+// A "display" surface is one that is intended to be drawn to the
+// screen with gr_blit().  An "alpha" surface is a grayscale image
+// interpreted as an alpha mask used to render text in the current
+// color (with gr_text() or gr_texticon()).
+//
+// All these functions load PNG images from "/res/images/${name}.png".
+
+// Load a single display surface from a PNG image.
+int res_create_display_surface(const char* name, GRSurface** pSurface);
+
+// Load an array of display surfaces from a single PNG image.  The PNG
+// should have a 'Frames' text chunk whose value is the number of
+// frames this image represents.  The pixel data itself is interlaced
+// by row.
+int res_create_multi_display_surface(const char* name, int* frames,
+                                     int* fps, GRSurface*** pSurface);
+int res_create_multi_display_surface(const char* name, int* frames,
+                                     GRSurface*** pSurface);
+
+// Load a single alpha surface from a grayscale PNG image.
+int res_create_alpha_surface(const char* name, GRSurface** pSurface);
+
+// Load part of a grayscale PNG image that is the first match for the
+// given locale.  The image is expected to be a composite of multiple
+// translations of the same text, with special added rows that encode
+// the subimages' size and intended locale in the pixel data.  See
+// bootable/recovery/tools/recovery_l10n for an app that will generate
+// these specialized images from Android resources.
+int res_create_localized_alpha_surface(const char* name, const char* locale,
+                                       GRSurface** pSurface);
+
+// Free a surface allocated by any of the res_create_*_surface()
+// functions.
+void res_free_surface(GRSurface* surface);
+
+#else //ifndef TW_USE_MINUI_21
+
+// This the old minui21/minui.h for compatibility with building TWRP
+// in pre 6.0 trees.
+
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void* gr_surface;
+typedef unsigned short gr_pixel;
+
+int gr_init(void);
+void gr_exit(void);
+
+int gr_fb_width(void);
+int gr_fb_height(void);
+gr_pixel *gr_fb_data(void);
+void gr_flip(void);
+void gr_fb_blank(bool blank);
+
+void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a);
+void gr_fill(int x1, int y1, int x2, int y2);
+
+// system/core/charger uses different gr_print signatures in diferent
+// Android versions, either with or without int bold.
+int gr_text(int x, int y, const char *s, ...);
+int gr_text_impl(int x, int y, const char *s, int bold);
+
+ void gr_texticon(int x, int y, gr_surface icon);
+int gr_measure(const char *s);
+void gr_font_size(int *x, int *y);
+void gr_get_memory_surface(gr_surface);
+
+void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy);
+unsigned int gr_get_width(gr_surface surface);
+unsigned int gr_get_height(gr_surface surface);
+
+// input event structure, include <linux/input.h> for the definition.
+// see http://www.mjmwired.net/kernel/Documentation/input/ for info.
+struct input_event;
+
+typedef int (*ev_callback)(int fd, uint32_t epevents, void *data);
+typedef int (*ev_set_key_callback)(int code, int value, void *data);
+
+int ev_init(ev_callback input_cb, void *data);
+void ev_exit(void);
+int ev_add_fd(int fd, ev_callback cb, void *data);
+int ev_sync_key_state(ev_set_key_callback set_key_cb, void *data);
+
+/* timeout has the same semantics as for poll
+ *    0 : don't block
+ *  < 0 : block forever
+ *  > 0 : block for 'timeout' milliseconds
+ */
+int ev_wait(int timeout);
+
+int ev_get_input(int fd, uint32_t epevents, struct input_event *ev);
+void ev_dispatch(void);
+int ev_get_epollfd(void);
+
+// Resources
+
+// Returns 0 if no error, else negative.
+int res_create_surface(const char* name, gr_surface* pSurface);
+
+// Load an array of display surfaces from a single PNG image.  The PNG
+// should have a 'Frames' text chunk whose value is the number of
+// frames this image represents.  The pixel data itself is interlaced
+// by row.
+int res_create_multi_display_surface(const char* name,
+                                     int* frames, gr_surface** pSurface);
+
+int res_create_localized_surface(const char* name, gr_surface* pSurface);
+void res_free_surface(gr_surface surface);
+static inline int res_create_display_surface(const char* name, gr_surface* pSurface) {
+    return res_create_surface(name, pSurface);
+}
+
+// These are new graphics functions from 5.0 that were not available in
+// 4.4 that are required by charger and healthd
+void gr_clear();
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ifndef TW_USE_MINUI_21
+#endif // ifndef _MINUI_H_