Added plugin loader. Moved games, demos and the text viewer to loadable plugins. Copy your *.rock files to /.rockbox/rocks/

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@3769 a1c6a512-1295-4272-9138-f99709370657

29 files changed, 1869 insertions, 1889 deletions

diff --git a/apps/Makefile b/apps/Makefile
index 3e5fbdc2dd..9614050cda 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -20,7 +20,7 @@ DOCSDIR := ../docs
 
 INCLUDES= -I$(FIRMWARE)/include -I$(FIRMWARE)/export -I. -I$(OBJDIR)
 
-CFLAGS = -O -W -Wall -m1 -nostdlib -ffreestanding -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns $(INCLUDES) $(TARGET) $(DEFINES) -DAPPSVERSION=\"$(VERSION)\" $(EXTRA_DEFINES) -DMEM=${MEM}
+CFLAGS = -O -W -Wall -m1 -nostdlib -ffreestanding -Wstrict-prototypes -fomit-frame-pointer -fschedule-insns $(INCLUDES) $(TARGET) $(DEFINES) -DAPPSVERSION=\"$(VERSION)\" $(EXTRA_DEFINES) -DMEM=${MEM} -DPLUGIN=1
 AFLAGS += -small -relax
 
 # Check if this is a kind of Recorder
@@ -71,7 +71,10 @@ ifndef TOOLSDIR
 	TOOLSDIR=../tools
 endif
 
-all : $(OBJDIR)/$(OUTNAME)
+all : $(OBJDIR)/$(OUTNAME) rocks
+
+rocks:
+	$(MAKE) -C plugins TARGET=$(TARGET) DEBUG=$(DEBUG) OBJDIR=$(OBJDIR) VERSION=$(VERSION) EXTRA_DEFINES="$(EXTRA_DEFINES)"
 
 $(OBJDIR)/librockbox.a:
 	make -C $(FIRMWARE) TARGET=$(TARGET) DEBUG=$(DEBUG) OBJDIR=$(OBJDIR)
@@ -117,6 +120,7 @@ clean:
 	$(OBJDIR)/lang.o $(OBJDIR)/build.lang $(OBJDIR)/lang.[ch] \
 	$(OBJDIR)/credits.raw $(LINKFILE)
 	-$(RM) -r $(OBJDIR)/$(DEPS)
+	$(MAKE) -C plugins clean
 
 DEPS:=.deps
 DEPDIRS:=$(DEPS)
diff --git a/apps/demo_menu.c b/apps/demo_menu.c
index f6934e49be..be8e44522c 100644
--- a/apps/demo_menu.c
+++ b/apps/demo_menu.c
@@ -24,19 +24,38 @@
 
 #include <stdio.h>
 #include <stdbool.h>
-#include "lcd.h"
 #include "menu.h"
 #include "demo_menu.h"
-#include "button.h"
-#include "kernel.h"
-#include "sprintf.h"
-
 #include "lang.h"
+#include "plugin.h"
+
+static bool bounce(void)
+{
+    if (plugin_load("/.rockbox/rocks/bounce.rock",NULL)==PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
+
+static bool snow(void)
+{
+    if (plugin_load("/.rockbox/rocks/snow.rock",NULL) == PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
+
+static bool cube(void)
+{
+    if (plugin_load("/.rockbox/rocks/cube.rock",NULL) == PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
 
-extern bool bounce(void);
-extern bool snow(void);
-extern bool cube(void);
-extern bool oscillograph(void);
+static bool oscillograph(void)
+{
+    if (plugin_load("/.rockbox/rocks/oscillograph.rock",NULL)==PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
 
 bool demo_menu(void)
 {
diff --git a/apps/games_menu.c b/apps/games_menu.c
index 0c37203f4e..780c4b7415 100644
--- a/apps/games_menu.c
+++ b/apps/games_menu.c
@@ -25,18 +25,31 @@
 
 #include <stdio.h>
 #include <stdbool.h>
-#include "lcd.h"
 #include "menu.h"
 #include "games_menu.h"
-#include "button.h"
-#include "kernel.h"
-#include "sprintf.h"
-
-#include "sokoban.h"
-#include "wormlet.h"
 #include "lang.h"
+#include "plugin.h"
 
-extern bool tetris(void);
+static bool tetris(void)
+{
+    if (plugin_load("/.rockbox/rocks/tetris.rock",NULL)==PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
+
+static bool sokoban(void)
+{
+    if (plugin_load("/.rockbox/rocks/sokoban.rock",NULL)==PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
+
+static bool wormlet(void)
+{
+    if (plugin_load("/.rockbox/rocks/wormlet.rock",NULL)==PLUGIN_USB_CONNECTED)
+        return true;
+    return false;
+}
 
 bool games_menu(void)
 {
diff --git a/apps/lang/english.lang b/apps/lang/english.lang
index 12249ee048..1d7b3088a6 100644
--- a/apps/lang/english.lang
+++ b/apps/lang/english.lang
@@ -677,37 +677,37 @@ new:
 
 id: LANG_SOKOBAN_LEVEL
 desc: must be smaller than 6 characters
-eng: "Level"
+eng: ""
 new:
 
 id: LANG_SOKOBAN_MOVE
 desc: must be smaller than 6 characters
-eng: "Moves"
+eng: ""
 new:
 
 id: LANG_SOKOBAN_WIN
 desc: displayed when you win 
-eng: "YOU WIN!!"
+eng: ""
 new:
 
 id: LANG_SOKOBAN_QUIT
 desc: how to quit game
-eng: "[OFF] To Stop"
+eng: ""
 new:
 
 id: LANG_SOKOBAN_F1
 desc: what does F1 do
-eng: "[F1] - Level"
+eng: ""
 new:
 
 id: LANG_SOKOBAN_F2
 desc: what does F2 do
-eng: "[F2] Same Level"
+eng: ""
 new:
 
 id: LANG_SOKOBAN_F3
 desc: what does F3 do
-eng: "[F3] + Level"
+eng: ""
 new:
 
 # Next ids are for Worlmet Game.
@@ -717,37 +717,37 @@ new:
 
 id: LANG_WORMLET_LENGTH
 desc: wormlet game
-eng: "Len:%d"
+eng: ""
 new:
 
 id: LANG_WORMLET_GROWING
 desc: wormlet game 
-eng: "Growing"
+eng: ""
 new:
 
 id: LANG_WORMLET_HUNGRY
 desc: wormlet game
-eng: "Hungry"
+eng: ""
 new:
 
 id: LANG_WORMLET_WORMED
 desc: wormlet game
-eng: "Wormed"
+eng: ""
 new:
 
 id: LANG_WORMLET_ARGH
 desc: wormlet game
-eng: "Argh"
+eng: ""
 new:
 
 id: LANG_WORMLET_CRASHED
 desc: wormlet game
-eng: "Crashed"
+eng: ""
 new:
 
 id: LANG_WORMLET_HIGHSCORE
 desc: wormlet game
-eng: "Hs: %d"
+eng: ""
 new:
 
 # Length restrictions for wormlet config screen strings (LANG_CS_XXX)
@@ -756,49 +756,49 @@ new:
 
 id: LANG_WORMLET_PLAYERS
 desc: wormlet game
-eng: "%d Players    UP/DN"
+eng: ""
 new:
 
 id: LANG_WORMLET_WORMS
 desc: wormlet game
-eng: "%d Worms        L/R"
+eng: ""
 new:
 
 id: LANG_WORMLET_REMOTE_CTRL
 desc: wormlet game
-eng: "Remote Control F1"
+eng: ""
 new:
 
 id: LANG_WORMLET_NO_REM_CTRL
 desc: wormlet game
-eng: "No Rem. Control F1"
+eng: ""
 new:
 
 id: LANG_WORMLET_2_KEY_CTRL
 desc: wormlet game
-eng: "2 Key Control   F1"
+eng: ""
 new:
 
 id: LANG_WORMLET_4_KEY_CTRL
 desc: wormlet game
-eng: "4 Key Control   F1"
+eng: ""
 new:
 
 id: LANG_WORMLET_NO_CONTROL
 desc: wormlet game
-eng: "Out Of Control"
+eng: ""
 new:
 
 # Wormlet game ids ended
 
 id: LANG_TETRIS_LOSE
 desc: tetris game
-eng: "You Lose!"
+eng: ""
 new:
 
 id: LANG_TETRIS_LEVEL
 desc: tetris game
-eng: "Rows - Level"
+eng: ""
 new:
 
 id: LANG_POWEROFF_IDLE
@@ -1569,3 +1569,33 @@ id: LANG_CANCEL_WITH_ANY_RECORDER
 desc: Generic recorder string to use to cancel
 eng: "Any Other = No"
 new:
+
+##
+## Strings used in the plugin loader:
+##
+
+id: LANG_PLUGIN_CANT_OPEN
+desc: Plugin open error message
+eng: "Can't open %s"
+new:
+
+id: LANG_READ_FAILED
+desc: There was an error reading a file
+eng: "Failed reading %s"
+new:
+
+id: LANG_PLUGIN_WRONG_MODEL
+desc: The plugin is not compatible with the archos model trying to run it
+eng: "Incompatible model"
+new:
+
+id: LANG_PLUGIN_WRONG_VERSION
+desc: The plugin is not compatible with the rockbox version trying to run it
+eng: "Incompatible version"
+new:
+
+id: LANG_PLUGIN_ERROR
+desc: The plugin return an error code
+eng: "Plugin returned error"
+new:
+
diff --git a/apps/player/icons.h b/apps/player/icons.h
index 1c9c68d66c..c96f821cfa 100644
--- a/apps/player/icons.h
+++ b/apps/player/icons.h
@@ -26,7 +26,8 @@
 
 enum {
     Unknown=0x90, 
-    Folder=0x18, Mod_Ajz, Language, File, Wps, Playlist, Text, Config
+    Plugin = 0x17,
+    Folder, Mod_Ajz, Language, File, Wps, Playlist, Text, Config,
 };
 
 #endif
diff --git a/apps/plugin.c b/apps/plugin.c
new file mode 100644
index 0000000000..6366580a56
--- /dev/null
+++ b/apps/plugin.c
@@ -0,0 +1,221 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Björn Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include "button.h"
+#include "lcd.h"
+#include "dir.h"
+#include "file.h"
+#include "kernel.h"
+#include "sprintf.h"
+#include "screens.h"
+#include "misc.h"
+#include "mas.h"
+#include "plugin.h"
+#include "lang.h"
+
+#ifdef SIMULATOR
+#include <dlfcn.h>
+#define PREFIX(_x_) x11_ ## _x_
+#else
+#define PREFIX(_x_) _x_
+#endif
+
+static int plugin_test(int api_version, int model);
+
+static struct plugin_api rockbox_api = {
+    PLUGIN_API_VERSION,
+
+    plugin_test,
+    
+    /* lcd */
+    lcd_clear_display,
+    lcd_puts,
+    lcd_puts_scroll,
+    lcd_stop_scroll,
+#ifdef HAVE_LCD_CHARCELLS
+    lcd_define_pattern,
+#else
+    lcd_putsxy,
+    lcd_bitmap,
+    lcd_drawline,
+    lcd_clearline,
+    lcd_drawpixel,
+    lcd_clearpixel,
+    lcd_setfont,
+    lcd_clearrect,
+    lcd_fillrect,
+    lcd_drawrect,
+    lcd_invertrect,
+    lcd_getstringsize,
+    lcd_update,
+    lcd_update_rect,
+#ifndef SIMULATOR
+    lcd_roll,
+#endif
+#endif
+
+    /* button */
+    button_get,
+    button_get_w_tmo,
+
+    /* file */
+    PREFIX(open),
+    PREFIX(close),
+    read,
+    lseek,
+    PREFIX(creat),
+    write,
+    remove,
+    rename,
+    ftruncate,
+    PREFIX(filesize),
+    fprintf,
+    read_line,
+
+    /* dir */
+    PREFIX(opendir),
+    PREFIX(closedir),
+    PREFIX(readdir),
+
+    /* kernel */
+    PREFIX(sleep),
+    usb_screen,
+    &current_tick,
+
+    /* strings and memory */
+    snprintf,
+    strcpy,
+    strlen,
+    memset,
+    memcpy,
+
+    /* sound */
+#ifndef SIMULATOR
+#ifdef HAVE_MAS3587F
+    mas_codec_readreg,
+#endif
+#endif
+    
+    /* misc */
+    srand,
+    rand,
+    splash,
+};
+
+int plugin_load(char* plugin, void* parameter)
+{
+    enum plugin_status (*plugin_start)(struct plugin_api* api, void* param);
+    int rc;
+    char buf[64];
+#ifdef SIMULATOR
+    void* pd;
+    char path[256];
+#else
+    extern unsigned char pluginbuf[];
+    int fd;
+#endif
+
+    lcd_clear_display();
+#ifdef HAVE_LCD_BITMAP
+    lcd_setmargins(0,0);
+    lcd_update();
+#endif
+#ifdef SIMULATOR
+    snprintf(path, sizeof path, "archos%s", plugin);
+    pd = dlopen(path, RTLD_NOW);
+    if (!pd) {
+        snprintf(buf, sizeof buf, "Can't open %s", plugin);
+        splash(HZ*2, 0, true, buf);
+        dlclose(pd);
+        return -1;
+    }
+
+    plugin_start = dlsym(pd, "plugin_start");
+    if (!plugin_start) {
+        plugin_start = dlsym(pd, "_plugin_start");
+        if (!plugin_start) {
+            splash(HZ*2, 0, true, "Can't find entry point");
+            dlclose(pd);
+            return -1;
+        }
+    }
+#else
+    fd = open(plugin, O_RDONLY);
+    if (fd < 0) {
+        snprintf(buf, sizeof buf, str(LANG_PLUGIN_CANT_OPEN), plugin);
+        splash(HZ*2, 0, true, buf);
+        return fd;
+    }
+
+    plugin_start = (void*)&pluginbuf;
+    rc = read(fd, plugin_start, 0x8000);
+    close(fd);
+    if (rc < 0) {
+        /* read error */
+        snprintf(buf, sizeof buf, str(LANG_READ_FAILED), plugin);
+        splash(HZ*2, 0, true, buf);
+        return -1;
+    }
+    if (rc == 0) {
+        /* loaded a 0-byte plugin, implying it's not for this model */
+        splash(HZ*2, 0, true, str(LANG_PLUGIN_WRONG_MODEL));
+        return -1;
+    }
+#endif
+
+    rc = plugin_start(&rockbox_api, parameter);
+    switch (rc) {
+        case PLUGIN_OK:
+            break;
+
+        case PLUGIN_USB_CONNECTED:
+            return PLUGIN_USB_CONNECTED;
+
+        case PLUGIN_WRONG_API_VERSION:
+            splash(HZ*2, 0, true, str(LANG_PLUGIN_WRONG_VERSION));
+            break;
+
+        case PLUGIN_WRONG_MODEL:
+            splash(HZ*2, 0, true, str(LANG_PLUGIN_WRONG_MODEL));
+            break;
+
+        default:
+            splash(HZ*2, 0, true, str(LANG_PLUGIN_ERROR));
+            break;
+    }
+
+#ifdef SIMULATOR
+    dlclose(pd);
+#endif
+    
+    return PLUGIN_OK;
+}
+
+int plugin_test(int api_version, int model)
+{
+    if (api_version != PLUGIN_API_VERSION)
+        return PLUGIN_WRONG_API_VERSION;
+
+    if (model != MODEL)
+        return PLUGIN_WRONG_MODEL;
+
+    return PLUGIN_OK;
+}
diff --git a/apps/plugin.h b/apps/plugin.h
new file mode 100644
index 0000000000..3b79edefc6
--- /dev/null
+++ b/apps/plugin.h
@@ -0,0 +1,161 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Björn Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef _PLUGIN_H_
+#define _PLUGIN_H_
+
+/* instruct simulator code to not redefine any symbols when compiling plugins.
+   (the PLUGIN macro is defined in apps/plugins/Makefile) */
+#ifdef PLUGIN
+#define NO_REDEFINES_PLEASE
+#endif
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "config.h"
+#include "dir.h"
+#include "kernel.h"
+#include "button.h"
+#include "font.h"
+#include "system.h"
+#include "lcd.h"
+
+/* increase this every time the api struct changes */
+#define PLUGIN_API_VERSION 1
+
+/* plugin return codes */
+enum plugin_status {
+    PLUGIN_OK = 0,
+    PLUGIN_USB_CONNECTED,
+
+    PLUGIN_WRONG_API_VERSION = -1,
+    PLUGIN_WRONG_MODEL = -2,
+    PLUGIN_ERROR = -3,
+};
+
+/* different (incompatible) plugin models */
+enum model {
+    PLAYER,
+    RECORDER
+};
+
+#ifdef HAVE_LCD_CHARCELLS
+#define MODEL PLAYER
+#else
+#define MODEL RECORDER
+#endif
+
+/* compatibility test macro */
+#define TEST_PLUGIN_API(_api_) \
+do { \
+ int _rc_ = _api_->plugin_test(PLUGIN_API_VERSION, MODEL); \
+ if (_rc_<0) \
+     return _rc_; \
+} while(0)
+
+struct plugin_api {
+    /* these two fields must always be first, to ensure
+       TEST_PLUGIN_API will always work */
+    int version;
+    int (*plugin_test)(int api_version, int model);
+
+    /* lcd */
+    void (*lcd_clear_display)(void);
+    void (*lcd_puts)(int x, int y, unsigned char *string);
+    void (*lcd_puts_scroll)(int x, int y, unsigned char* string);
+    void (*lcd_stop_scroll)(void);
+#ifdef HAVE_LCD_CHARCELLS
+    void (*lcd_define_pattern)(int which,char *pattern);
+#else
+    void (*lcd_putsxy)(int x, int y, unsigned char *string);
+    void (*lcd_bitmap)(unsigned char *src, int x, int y,
+                       int nx, int ny, bool clear);
+    void (*lcd_drawline)(int x1, int y1, int x2, int y2);
+    void (*lcd_clearline)(int x1, int y1, int x2, int y2);
+    void (*lcd_drawpixel)(int x, int y);
+    void (*lcd_clearpixel)(int x, int y);
+    void (*lcd_setfont)(int font);
+    void (*lcd_clearrect)(int x, int y, int nx, int ny);
+    void (*lcd_fillrect)(int x, int y, int nx, int ny);
+    void (*lcd_drawrect)(int x, int y, int nx, int ny);
+    void (*lcd_invertrect)(int x, int y, int nx, int ny);
+    int  (*lcd_getstringsize)(unsigned char *str, int *w, int *h);
+    void (*lcd_update)(void);
+    void (*lcd_update_rect)(int x, int y, int width, int height);
+#ifndef SIMULATOR
+    void (*lcd_roll)(int pixels);
+#endif
+#endif
+
+    /* button */
+    int (*button_get)(bool block);
+    int (*button_get_w_tmo)(int ticks);
+
+    /* file */
+    int (*open)(const char* pathname, int flags);
+    int (*close)(int fd);
+    int (*read)(int fd, void* buf, int count);
+    int (*lseek)(int fd, int offset, int whence);
+    int (*creat)(const char *pathname, int mode);
+    int (*write)(int fd, void* buf, int count);
+    int (*remove)(const char* pathname);
+    int (*rename)(const char* path, const char* newname);
+    int (*ftruncate)(int fd, unsigned int size);
+    int (*filesize)(int fd);
+    int (*fprintf)(int fd, const char *fmt, ...);
+    int (*read_line)(int fd, char* buffer, int buffer_size);
+    
+    /* dir */
+    DIR* (*opendir)(char* name);
+    int (*closedir)(DIR* dir);
+    struct dirent* (*readdir)(DIR* dir);
+
+    /* kernel */
+    void (*sleep)(int ticks);
+    void (*usb_screen)(void);
+    long* current_tick;
+
+    /* strings and memory */
+    int    (*snprintf)(char *buf, size_t size, const char *fmt, ...);
+    char*  (*strcpy)(char *dst, const char *src);
+    size_t (*strlen)(const char *str);
+    void*  (*memset)(void *dst, int c, size_t length);
+    void*  (*memcpy)(void *out, const void *in, size_t n);
+
+    /* sound */
+#ifndef SIMULATOR
+#ifdef HAVE_MAS3587F
+    int (*mas_codec_readreg)(int reg);
+#endif
+#endif
+
+    /* misc */
+    void (*srand)(unsigned int seed);
+    int  (*rand)(void);
+    void (*splash)(int ticks, int keymask, bool center, char *fmt, ...);
+};
+
+/* defined by the plugin loader (plugin.c) */
+int plugin_load(char* plugin, void* parameter);
+
+/* defined by the plugin */
+enum plugin_status plugin_start(struct plugin_api* rockbox, void* parameter)
+    __attribute__ ((section (".entry")));
+
+#endif
diff --git a/apps/plugins/Makefile b/apps/plugins/Makefile
new file mode 100644
index 0000000000..4c02207016
--- /dev/null
+++ b/apps/plugins/Makefile
@@ -0,0 +1,45 @@
+#             __________               __   ___.
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/
+# $Id$
+#
+
+CC    = sh-elf-gcc
+OC    = sh-elf-objcopy
+
+FIRMWARE = ../../firmware
+
+INCLUDES = -I$(FIRMWARE)/include -I$(FIRMWARE)/export -I$(FIRMWARE)/common -I$(FIRMWARE)/drivers -I..
+CFLAGS = -O -W -Wall -m1 -nostdlib -ffreestanding -Wstrict-prototypes $(INCLUDES) $(TARGET) $(EXTRA_DEFINES)
+
+LINKFILE = plugin.lds
+
+SRC := $(wildcard *.c)
+ROCKS := $(SRC:%.c=$(OBJDIR)/%.rock)
+
+ifndef OBJDIR
+no_configure:
+	@echo "Don't run make here. Run the tools/configure script from your own build"
+	@echo "directory, then run make there."
+	@echo
+	@echo "More help on how to build rockbox can be found here:"
+	@echo "http://rockbox.haxx.se/docs/how_to_compile.html"
+endif
+
+$(OBJDIR)/%.elf: $(OBJDIR)/%.o $(LINKFILE)
+	$(CC) -O -nostdlib -o $@ $< -lgcc -T$(LINKFILE) -Wl,-Map,$*.map
+
+$(OBJDIR)/%.rock : $(OBJDIR)/%.elf
+	$(OC) -O binary $< $@
+
+$(OBJDIR)/%.o: %.c  ../plugin.h Makefile
+	$(CC) $(CFLAGS) -c $< -o $@
+
+all: $(ROCKS)
+	@echo done
+
+clean:
+	-rm -f $(ROCKS)
diff --git a/apps/recorder/bounce.c b/apps/plugins/bounce.c
index ed4885bc39..0c53d49887 100644
--- a/apps/recorder/bounce.c
+++ b/apps/plugins/bounce.c
@@ -15,26 +15,10 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
- ****************************************************************************/
+ **************************************************************************/
+#include "plugin.h"
 
-#include "config.h"
-#include "options.h"
-
-#ifdef USE_DEMOS
-
-#include "lcd.h"
-#include "button.h"
-#include "kernel.h"
-#include "menu.h"
-#include "sprintf.h"
-#include "rtc.h"
-#include "font.h"
-#include "screens.h"
-
-#ifdef SIMULATOR
-#include <stdio.h>
-#endif
-#include <string.h>
+#ifdef HAVE_LCD_BITMAP
 
 #define SS_TITLE       "Bouncer"
 #define SS_TITLE_FONT  2
@@ -45,6 +29,7 @@
 #define XSPEED 3
 #define YADD -4
 
+static struct plugin_api* rb;
 
 static unsigned char table[]={
 26,28,30,33,35,37,39,40,42,43,45,46,46,47,47,47,47,47,46,46,45,43,42,40,39,37,35,33,30,28,26,24,21,19,17,14,12,10,8,7,5,4,2,1,1,0,0,0,0,0,1,1,2,4,5,7,8,10,12,14,17,19,21,23,
@@ -186,6 +171,7 @@ struct counter values[]={
   {"ydistt", -6},
 };
 
+#ifdef USE_CLOCK
 static unsigned char yminute[]={
 53,53,52,52,51,50,49,47,46,44,42,40,38,36,34,32,29,27,25,23,21,19,17,16,14,13,12,11,11,10,10,10,11,11,12,13,14,16,17,19,21,23,25,27,29,31,34,36,38,40,42,44,46,47,49,50,51,52,52,53,
 };
@@ -216,23 +202,24 @@ static void addclock(void)
     if(pos >= 60)
         pos -= 60;
 
-    lcd_drawline(LCD_WIDTH/2, LCD_HEIGHT/2, xminute[pos], yminute[pos]);
+    rb->lcd_drawline(LCD_WIDTH/2, LCD_HEIGHT/2, xminute[pos], yminute[pos]);
 
     hour = hour*5 + minute/12;
     pos = 90-hour;
     if(pos >= 60)
         pos -= 60;
 
-    lcd_drawline(LCD_WIDTH/2, LCD_HEIGHT/2, xhour[pos], yhour[pos]);
+    rb->lcd_drawline(LCD_WIDTH/2, LCD_HEIGHT/2, xhour[pos], yhour[pos]);
 
     /* draw a circle */
     for(i=0; i < 60; i+=3) {
-        lcd_drawline( xminute[i],
+        rb->lcd_drawline( xminute[i],
                       yminute[i],
                       xminute[(i+1)%60],
                       yminute[(i+1)%60]);
     }
 }
+#endif
 
 static int scrollit(void)
 {
@@ -243,31 +230,33 @@ static int scrollit(void)
     unsigned int i;
     int textpos=0;
 
-    char rock[]="Rockbox! Pure pleasure. Pure fun. Oooh. What fun! ;-) ";
+    char* rock="Rockbox! Pure pleasure. Pure fun. Oooh. What fun! ;-) ";
     int letter;
 
-    lcd_clear_display();
+    rb->lcd_clear_display();
     while(1)
     {
-        b = button_get_w_tmo(HZ/10);
+        b = rb->button_get_w_tmo(HZ/10);
         if ( b == (BUTTON_OFF|BUTTON_REL) )
             return 0;
         else if ( b == (BUTTON_ON|BUTTON_REL) )
             return 1;
 
-        lcd_clear_display();
+        rb->lcd_clear_display();
 
         for(i=0, yy=y, xx=x; i< LETTERS_ON_SCREEN; i++) {
             letter = rock[(i+textpos) % (sizeof(rock)-1) ];
 
-            lcd_bitmap((char *)char_gen_12x16[letter-0x20],
+            rb->lcd_bitmap((char *)char_gen_12x16[letter-0x20],
                        xx, table[yy&63],
                        11, 16, false);
             yy += YADD;
             xx+= LCD_WIDTH/LETTERS_ON_SCREEN;
         }
+#ifdef USE_CLOCK
         addclock();
-        lcd_update();
+#endif
+        rb->lcd_update();
 
         x-= XSPEED;
         
@@ -292,21 +281,21 @@ static int loopit(void)
     unsigned int ysanke=0;
     unsigned int xsanke=0;
 
-    char rock[]="ROCKbox";
+    char* rock="ROCKbox";
 
     int show=0;
     int timeout=0;
     char buffer[30];
 
-    lcd_clear_display();
+    rb->lcd_clear_display();
     while(1)
     {
-        b = button_get_w_tmo(HZ/10);
+        b = rb->button_get_w_tmo(HZ/10);
         if ( b == (BUTTON_OFF|BUTTON_REL) )
             return 0;
         
         if ( b == SYS_USB_CONNECTED) {
-            usb_screen();
+            rb->usb_screen();
             return 0;
         }
 
@@ -318,10 +307,10 @@ static int loopit(void)
         y+= speed[ysanke&15] + values[NUM_YADD].num;
         x+= speed[xsanke&15] + values[NUM_XADD].num;
 
-        lcd_clear_display();
-
+        rb->lcd_clear_display();
+#ifdef USE_CLOCK
         addclock();
-
+#endif
         if(timeout) {
             switch(b) {
                 case BUTTON_LEFT:
@@ -339,18 +328,18 @@ static int loopit(void)
                       show=NUM_LAST-1;
                   break;
             }
-            snprintf(buffer, 30, "%s: %d",
-                     values[show].what, values[show].num);
-            lcd_putsxy(0, 56, buffer);
+            rb->snprintf(buffer, 30, "%s: %d",
+                         values[show].what, values[show].num);
+            rb->lcd_putsxy(0, 56, buffer);
             timeout--;
         }
         for(i=0, yy=y, xx=x;
             i<sizeof(rock)-1;
             i++, yy+=values[NUM_YDIST].num, xx+=values[NUM_XDIST].num)
-          lcd_bitmap((char *)char_gen_12x16[rock[i]-0x20],
+          rb->lcd_bitmap((char *)char_gen_12x16[rock[i]-0x20],
                      xtable[xx%71], table[yy&63],
                      11, 16, false);
-        lcd_update();
+        rb->lcd_update();
 
         ysanke+= values[NUM_YSANKE].num;
         xsanke+= values[NUM_XSANKE].num;
@@ -358,15 +347,19 @@ static int loopit(void)
 }
 
 
-bool bounce(void)
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 {
     int w, h;
     char *off = "[Off] to stop";
-    int len = strlen(SS_TITLE);
+    int len;
 
-    lcd_setfont(FONT_SYSFIXED);
+    TEST_PLUGIN_API(api);
+    (void)(parameter);
+    rb = api;
 
-    lcd_getstringsize(SS_TITLE,&w, &h);
+    len = rb->strlen(SS_TITLE);
+    rb->lcd_setfont(FONT_SYSFIXED);
+    rb->lcd_getstringsize(SS_TITLE,&w, &h);
 
     /* Get horizontel centering for text */
     len *= w;
@@ -380,11 +373,11 @@ bool bounce(void)
     else
         h /= 2;
     
-    lcd_clear_display();
-    lcd_putsxy(LCD_WIDTH/2-len, (LCD_HEIGHT/2)-h, SS_TITLE);
+    rb->lcd_clear_display();
+    rb->lcd_putsxy(LCD_WIDTH/2-len, (LCD_HEIGHT/2)-h, SS_TITLE);
     
     len = 1;
-    lcd_getstringsize(off, &w, &h);
+    rb->lcd_getstringsize(off, &w, &h);
     
     /* Get horizontel centering for text */
     len *= w;
@@ -398,10 +391,9 @@ bool bounce(void)
     else
         h /= 2;
     
-    lcd_putsxy(LCD_WIDTH/2-len, LCD_HEIGHT-(2*h), off);
-    
-    lcd_update();
-    sleep(HZ);
+    rb->lcd_putsxy(LCD_WIDTH/2-len, LCD_HEIGHT-(2*h), off);
+    rb->lcd_update();
+    rb->sleep(HZ);
     
     do {
         h= loopit();
@@ -409,7 +401,7 @@ bool bounce(void)
             h = scrollit();
     } while(h);
     
-    lcd_setfont(FONT_UI);
+    rb->lcd_setfont(FONT_UI);
     
     return false;
 }
diff --git a/apps/recorder/cube.c b/apps/plugins/cube.c
index ad3af91c87..996a1a81dd 100644
--- a/apps/recorder/cube.c
+++ b/apps/plugins/cube.c
@@ -16,22 +16,10 @@
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
 * KIND, either express or implied.
 *
-****************************************************************************/
+***************************************************************************/
+#include "plugin.h"
 
-#include "config.h"
-#include "options.h"
-
-#ifdef USE_DEMOS
-
-#include <stdlib.h>
-#include "lcd.h"
-#include "config.h"
-#include "kernel.h"
-#include "menu.h"
-#include "button.h"
-#include "sprintf.h"
-#include "screens.h"
-#include "font.h"
+#ifdef HAVE_LCD_BITMAP
 
 /* Loops that the values are displayed */
 #define DISP_TIME 30
@@ -80,6 +68,8 @@ static int sin_table[91] =
     10000
 };
 
+static struct plugin_api* rb;
+
 static long sin(int val)
 {
     /* Speed improvement through sukzessive lookup */
@@ -214,7 +204,7 @@ static void cube_init(void)
 
 static void line(int a, int b)
 {
-    lcd_drawline(point2D[a].x, point2D[a].y, point2D[b].x, point2D[b].y);
+    rb->lcd_drawline(point2D[a].x, point2D[a].y, point2D[b].x, point2D[b].y);
 }
 
 static void cube_draw(void)
@@ -234,7 +224,8 @@ static void cube_draw(void)
     line(3,6);
 }
 
-bool cube(void)
+
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 {
     int t_disp=0;
     char buffer[30];
@@ -247,27 +238,31 @@ bool cube(void)
     int zs=1;
     bool highspeed=0;
     bool exit=0;
-    
-    lcd_setfont(FONT_SYSFIXED);
+
+    TEST_PLUGIN_API(api);
+    (void)(parameter);
+    rb = api;
+
+    rb->lcd_setfont(FONT_SYSFIXED);
 
     cube_init();
 
     while(!exit)
     {
         if (!highspeed) 
-            sleep(4);
+            rb->sleep(4);
         
-        lcd_clear_display();
+        rb->lcd_clear_display();
         cube_rotate(xa,ya,za);
         cube_viewport();
         cube_draw();
         if (t_disp>0)
         {
             t_disp--;
-            snprintf(buffer, 30, "x:%d y:%d z:%d h:%d",xs,ys,zs,highspeed);
-            lcd_putsxy(0, 56, buffer);
+            rb->snprintf(buffer, 30, "x:%d y:%d z:%d h:%d",xs,ys,zs,highspeed);
+            rb->lcd_putsxy(0, 56, buffer);
         }
-        lcd_update();
+        rb->lcd_update();
         
         xa+=xs;
         if (xa>359)
@@ -285,7 +280,7 @@ bool cube(void)
         if (za<0)
             za+=360;
 
-        switch(button_get(false)) 
+        switch(rb->button_get(false)) 
         {
             case BUTTON_RIGHT:
                 xs+=1;
@@ -332,22 +327,12 @@ bool cube(void)
                 break;
 
             case SYS_USB_CONNECTED:
-                usb_screen();
-                lcd_setfont(FONT_UI);
-                return true;
+                rb->usb_screen();
+                return PLUGIN_USB_CONNECTED;
         }
     }
 
-    lcd_setfont(FONT_UI);
-
-    return false;
+    return PLUGIN_OK;
 }
 
-#endif /* USE_DEMOS */
-
-/* -----------------------------------------------------------------
- * vim: et sw=4 ts=8 sts=4 tw=78
- */
-
-
-
+#endif
diff --git a/apps/plugins/helloworld.c b/apps/plugins/helloworld.c
new file mode 100644
index 0000000000..ea347fbf79
--- /dev/null
+++ b/apps/plugins/helloworld.c
@@ -0,0 +1,48 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Björn Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "plugin.h"
+
+/* welcome to the example rockbox plugin */
+
+/* here is a global api struct pointer. while not strictly necessary,
+   it's nice not to have to pass the api pointer in all function calls
+   in the plugin */
+static struct plugin_api* rb;
+
+/* this is the plugin entry point */
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    /* this macro should be called as the first thing you do in the plugin.
+       it test that the api version and model the plugin was compiled for
+       matches the machine it is running on */
+    TEST_PLUGIN_API(api);
+
+    /* if you don't use the parameter, you can do like
+       this to avoid the compiler warning about it */
+    (void)parameter;
+
+    /* if you are using a global api pointer, don't forget to copy it!
+       otherwise you will get lovely "I04: IllInstr" errors... :-) */
+    rb = api;
+
+    /* now go ahead and have fun! */
+    rb->splash(HZ*2, 0, true, "Hello world!");
+
+    return PLUGIN_OK;
+}
diff --git a/apps/recorder/oscillograph.c b/apps/plugins/oscillograph.c
index bf94db168f..a34aa8bfa9 100644
--- a/apps/recorder/oscillograph.c
+++ b/apps/plugins/oscillograph.c
@@ -16,17 +16,11 @@
  * KIND, either express or implied. 
  *
  ****************************************************************************/
+#include "plugin.h"
 
+#ifdef HAVE_LCD_BITMAP
 #ifndef SIMULATOR /* don't want this code in the simulator */
 
-#include <stdlib.h>
-#include <sprintf.h>
-#include "menu.h"
-#include "lcd.h"
-#include "button.h"
-#include "mas.h"
-#include "system.h"
-
 /* The different drawing modes */
 #define DRAW_MODE_FILLED  0
 #define DRAW_MODE_OUTLINE 1
@@ -47,7 +41,7 @@ static int  drawMode = DRAW_MODE_FILLED;
  * hardware scrolling of the display. The user can change
  * speed
  */
-bool oscillograph(void)
+enum plugin_status plugin_start(struct plugin_api* rb, void* parameter)
 {
     /* stores current volume value left */
     int  left;
@@ -63,22 +57,25 @@ bool oscillograph(void)
 
     bool exit = false;
 
+    TEST_PLUGIN_API(rb);
+    (void)parameter;
+
     /* the main loop */
     while (!exit) {
 
         /* read the volume info from MAS */
-        left = mas_codec_readreg(0xC) / (MAX_PEAK / (LCD_WIDTH / 2 - 2));
-        right = mas_codec_readreg(0xD) / (MAX_PEAK / (LCD_WIDTH / 2 - 2));
+        left = rb->mas_codec_readreg(0xC) / (MAX_PEAK / (LCD_WIDTH / 2 - 2));
+        right = rb->mas_codec_readreg(0xD) / (MAX_PEAK / (LCD_WIDTH / 2 - 2));
 
         /* delete current line */
-        lcd_clearline(0, y, LCD_WIDTH-1, y);
+        rb->lcd_clearline(0, y, LCD_WIDTH-1, y);
 
         switch (drawMode) {
             case DRAW_MODE_FILLED:
-                lcd_drawline(LCD_WIDTH / 2 + 1        , y, 
-                             LCD_WIDTH / 2 + 1 + right, y);
-                lcd_drawline(LCD_WIDTH / 2 - 1        , y,
-                             LCD_WIDTH / 2 - 1 -left  , y);
+                rb->lcd_drawline(LCD_WIDTH / 2 + 1        , y, 
+                                 LCD_WIDTH / 2 + 1 + right, y);
+                rb->lcd_drawline(LCD_WIDTH / 2 - 1        , y,
+                                 LCD_WIDTH / 2 - 1 -left  , y);
                 break;
 
             case DRAW_MODE_OUTLINE:
@@ -87,10 +84,10 @@ bool oscillograph(void)
 
                 /* Here real lines were neccessary because 
                    anything else was ugly. */
-                lcd_drawline(LCD_WIDTH / 2 + right     , y, 
-                             LCD_WIDTH / 2 + lastRight , lasty);
-                lcd_drawline(LCD_WIDTH / 2 - left    , y,
-                             LCD_WIDTH / 2 - lastLeft, lasty);
+                rb->lcd_drawline(LCD_WIDTH / 2 + right     , y, 
+                                 LCD_WIDTH / 2 + lastRight , lasty);
+                rb->lcd_drawline(LCD_WIDTH / 2 - left    , y,
+                                 LCD_WIDTH / 2 - lastLeft, lasty);
 
                 /* have to store the old values for drawing lines
                    the next time */
@@ -100,8 +97,8 @@ bool oscillograph(void)
 
             case DRAW_MODE_PIXEL:
                 /* straight and simple */
-                lcd_drawpixel(LCD_WIDTH / 2 + right, y);
-                lcd_drawpixel(LCD_WIDTH / 2 - left, y);
+                rb->lcd_drawpixel(LCD_WIDTH / 2 + right, y);
+                rb->lcd_drawpixel(LCD_WIDTH / 2 - left, y);
                 break;
         }
 
@@ -114,19 +111,19 @@ bool oscillograph(void)
         /* I roll before update because otherwise the new
            line would appear at the wrong end of the display */
         if (roll)
-            lcd_roll(y);
+            rb->lcd_roll(y);
 
         /* now finally make the new sample visible */
-        lcd_update_rect(0, MAX(y-1, 0), LCD_WIDTH, 2);
+        rb->lcd_update_rect(0, MAX(y-1, 0), LCD_WIDTH, 2);
 
         /* There are two mechanisms to alter speed:
            1.) slowing down is achieved by increasing
-               the time waiting for user input. This
-               mechanism uses positive values.
+           the time waiting for user input. This
+           mechanism uses positive values.
            2.) speeding up is achieved by leaving out
-               the user input check for (-speed) volume
-               samples. For this mechanism negative values
-               are used.
+           the user input check for (-speed) volume
+           samples. For this mechanism negative values
+           are used.
         */
                
         if (speed >= 0 || ((speed < 0) && (y % (-speed) == 0))) {
@@ -138,7 +135,7 @@ bool oscillograph(void)
                it must be ensured that at least 1 is passed. */
 
             /* react to user input */
-            switch (button_get_w_tmo(MAX(speed, 1))) {
+            switch (rb->button_get_w_tmo(MAX(speed, 1))) {
                 case BUTTON_UP:
                     speed++;
                     draw = true;
@@ -151,7 +148,7 @@ bool oscillograph(void)
 
                 case BUTTON_PLAY:
                     /* pause the demo */
-                    button_get(true);
+                    rb->button_get(true);
                     break;
 
                 case BUTTON_F1:
@@ -170,7 +167,7 @@ bool oscillograph(void)
                        That produces ugly results in DRAW_MODE_OUTLINE
                        mode. If rolling is enabled this change will
                        be reverted before the next update anyway.*/
-                    lcd_roll(0);
+                    rb->lcd_roll(0);
                     break;
 
                 case BUTTON_F3:
@@ -181,27 +178,30 @@ bool oscillograph(void)
                 case BUTTON_OFF:
                     exit = true;
                     break;
+
+                case SYS_USB_CONNECTED:
+                    rb->usb_screen();
+                    return PLUGIN_USB_CONNECTED;
             }
 
             if (draw) {
                 char buf[16];
-                snprintf(buf, sizeof buf, "Speed: %d", -speed);
-                lcd_putsxy(0, (y + LCD_HEIGHT - 8) % LCD_HEIGHT, buf);
-                lcd_update_rect(0, (y + LCD_HEIGHT - 8) % LCD_HEIGHT, 
-                                LCD_WIDTH, 8);
+                rb->snprintf(buf, sizeof buf, "Speed: %d", -speed);
+                rb->lcd_putsxy(0, (y + LCD_HEIGHT - 8) % LCD_HEIGHT, buf);
+                rb->lcd_update_rect(0, (y + LCD_HEIGHT - 8) % LCD_HEIGHT, 
+                                    LCD_WIDTH, 8);
             }
         }    
     }
 
     /* restore to default roll position. 
        Looks funny if you forget to do this... */
-    lcd_roll(0);
-    lcd_update();
+    rb->lcd_roll(0);
+    rb->lcd_update();
 
     /* standard return */
-    return false;
+    return PLUGIN_OK;
 }
 
 #endif /* #ifndef SIMULATOR */
-
-
+#endif
diff --git a/apps/plugins/plugin.lds b/apps/plugins/plugin.lds
new file mode 100644
index 0000000000..be6b6fd0a6
--- /dev/null
+++ b/apps/plugins/plugin.lds
@@ -0,0 +1,26 @@
+OUTPUT_FORMAT(elf32-sh)
+
+MEMORY
+{
+   PLUGIN_RAM   : ORIGIN = 0x091f8000, LENGTH = 0x8000
+}
+
+SECTIONS
+{
+    .text : {
+        *(.entry)
+        *(.text)
+    } > PLUGIN_RAM
+
+    .data : {
+        *(.data)
+    } > PLUGIN_RAM
+
+    .bss : {
+        *(.bss)
+    } > PLUGIN_RAM
+
+    .rodata : {
+        *(.rodata)
+    } > PLUGIN_RAM
+}
diff --git a/apps/recorder/snow.c b/apps/plugins/snow.c
index c4e952f21d..df9966eb38 100644
--- a/apps/recorder/snow.c
+++ b/apps/plugins/snow.c
@@ -15,17 +15,15 @@
  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  * KIND, either express or implied.
  *
- ****************************************************************************/
-#include <stdlib.h>
-#include "lcd.h"
-#include "config.h"
-#include "kernel.h"
-#include "menu.h"
-#include "button.h"
+ **************************************************************************/
+#include "plugin.h"
+
+#ifdef HAVE_LCD_BITMAP
 
 #define NUM_PARTICLES 100
 
 static short particles[NUM_PARTICLES][2];
+static struct plugin_api* rb;
 
 static bool particle_exists(int particle)
 {
@@ -42,7 +40,7 @@ static int create_particle(void)
 
     for (i=0; i<NUM_PARTICLES; i++) {
         if (!particle_exists(i)) {
-            particles[i][0]=(rand()%112);
+            particles[i][0]=(rb->rand()%112);
             particles[i][1]=0;
             return i;
         }
@@ -54,13 +52,13 @@ static void snow_move(void)
 {
     int i;
 
-    if (!(rand()%2))
+    if (!(rb->rand()%2))
         create_particle();
 
     for (i=0; i<NUM_PARTICLES; i++) {
         if (particle_exists(i)) {
-            lcd_clearpixel(particles[i][0],particles[i][1]);
-            switch ((rand()%7)) {
+            rb->lcd_clearpixel(particles[i][0],particles[i][1]);
+            switch ((rb->rand()%7)) {
                 case 0:
                     particles[i][0]++;
                     break;
@@ -77,7 +75,7 @@ static void snow_move(void)
                     break;
             }
             if (particle_exists(i))
-                lcd_drawpixel(particles[i][0],particles[i][1]);
+                rb->lcd_drawpixel(particles[i][0],particles[i][1]);
         }
     }
 }
@@ -90,28 +88,24 @@ static void snow_init(void)
         particles[i][0]=-1;
         particles[i][1]=-1;
     }        
-    lcd_clear_display();
+    rb->lcd_clear_display();
 }
 
-bool snow(void)
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 {
-    snow_init();
+    TEST_PLUGIN_API(api);
+    (void)(parameter);
+    rb = api;
 
+    snow_init();
     while (1) {
         snow_move();
-        lcd_update();
-        sleep(HZ/20);
+        rb->lcd_update();
+        rb->sleep(HZ/20);
         
-        if (button_get(false) == BUTTON_OFF)
+        if (rb->button_get(false) == BUTTON_OFF)
             return false;
     }
 }
 
-
-
-
-
-
-
-
-
+#endif
diff --git a/apps/plugins/sokoban.c b/apps/plugins/sokoban.c
new file mode 100644
index 0000000000..2387fa9517
--- /dev/null
+++ b/apps/plugins/sokoban.c
@@ -0,0 +1,868 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Eric Linenberg
+ * February 2003: Robert Hak performs a cleanup/rewrite/feature addition.
+ *                Eric smiles.  Bjorn cries.  Linus say 'huh?'.
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "plugin.h"
+
+#ifdef HAVE_LCD_BITMAP
+
+#define SOKOBAN_TITLE       "Sokoban"
+#define SOKOBAN_TITLE_FONT  2
+
+#define LEVELS_FILE         "/.rockbox/sokoban/levels.txt"
+
+#define ROWS                16
+#define COLS                20
+#define MAX_UNDOS           5
+
+#define SOKOBAN_LEVEL_SIZE (ROWS*COLS)
+
+static void init_undo(void);
+static void undo(void);
+static void add_undo(int button);
+
+static int get_level(char *level, int level_size);
+static int get_level_count(void);
+static int load_level(void);
+static void draw_level(void);
+
+static void init_boards(void);
+static void update_screen(void);
+static bool sokoban_loop(void);
+
+/* The Location, Undo and LevelInfo structs are OO-flavored.  
+ * (oooh!-flavored as Schnueff puts it.)  It makes more you have to know, 
+ * but the overall data layout becomes more manageable. */
+
+/* We use the same three values in 2 structs.  Makeing them a struct
+ * hopefully ensures that if you change things in one, the other changes
+ * as well. */
+struct LevelInfo {
+    short level;
+    short moves;
+    short boxes_to_go;
+};
+
+/* What a given location on the board looks like at a given time */
+struct Location {
+    char spot;
+    short row;
+    short col;
+};
+
+/* A single level of undo.  Each undo move can affect upto,
+ * but not more then, 3 spots on the board */
+struct Undo {
+    struct LevelInfo level;
+    struct Location location[3];
+};
+
+/* Our full undo history */
+static struct UndoInfo {
+    short count;    /* How many undos are there in history */
+    short current;  /* Which history is the current undo */
+    struct Undo history[MAX_UNDOS];
+} undo_info;
+
+/* Our playing board */
+static struct BoardInfo {
+    char board[ROWS][COLS];
+    struct LevelInfo level;
+    struct Location player;
+    int max_level;               /* How many levels do we have? */
+    int level_offset;            /* Where in the level file is this level */
+    int loaded_level;            /* Which level is in memory */
+} current_info;
+
+static struct plugin_api* rb;
+
+static void init_undo(void)
+{
+    undo_info.count = 0;
+    undo_info.current = 0;
+}
+
+static void undo(void)
+{
+    struct Undo *undo;
+    int i = 0;
+    short row, col;
+
+    if (undo_info.count == 0)
+        return;
+
+    /* Update board info */
+    undo = &undo_info.history[undo_info.current];
+    
+    rb->memcpy(&current_info.level, &undo->level, sizeof(undo->level));
+    rb->memcpy(&current_info.player, &undo->location[0], sizeof(undo->location[0]));
+
+    row = undo->location[0].row;
+    col = undo->location[0].col;
+    current_info.board[row][col] = '@';
+
+    /* Update the two other possible spots */
+    for (i = 1; i < 3; i++) {
+        if (undo->location[i].spot != '\0') {
+            row = undo->location[i].row;
+            col = undo->location[i].col;
+            current_info.board[row][col] = undo->location[i].spot;
+            undo->location[i].spot = '\0';
+        }
+    }
+
+    /* Remove this undo from the list */
+    if (undo_info.current == 0) {
+        if (undo_info.count > 1)
+            undo_info.current = MAX_UNDOS - 1;
+    } else {
+        undo_info.current--;
+    }
+    
+    undo_info.count--;
+
+    return;
+}
+
+static void add_undo(int button)
+{
+    struct Undo *undo;
+    int row, col, i;
+    bool storable;
+
+    if ((button != BUTTON_LEFT) && (button != BUTTON_RIGHT) &&
+        (button != BUTTON_UP) && (button != BUTTON_DOWN))
+        return;
+
+    if (undo_info.count != 0) {
+        if (undo_info.current < (MAX_UNDOS - 1)) 
+            undo_info.current++;
+        else
+            undo_info.current = 0;
+    }
+
+    /* Make what follows more readable */
+    undo = &undo_info.history[undo_info.current];
+
+    /* Store our level info */
+    rb->memcpy(&undo->level, &current_info.level, sizeof(undo->level));
+
+    /* Store our player info */
+    rb->memcpy(&undo->location[0], &current_info.player, sizeof(undo->location[0]));
+
+    /* Now we need to store upto 2 blocks that may be affected.  
+     * If player.spot is NULL, then there is no info stored 
+     * for that block */
+
+    row = current_info.player.row;
+    col = current_info.player.col;
+
+    /* This must stay as _1_ because the first block (0) is the player */
+    for (i = 1; i < 3; i++) {
+        storable = true;
+
+        switch (button) {
+        case BUTTON_LEFT:
+            col--;
+            if (col < 0) 
+                storable = false;
+            break;
+
+        case BUTTON_RIGHT:
+            col++;
+            if (col >= COLS) 
+                storable = false;
+            break;
+
+        case BUTTON_UP:
+            row--;
+            if (row < 0)
+                storable = false;
+            break;
+            
+        case BUTTON_DOWN:
+            row++;
+            if (row >= ROWS)
+                storable = false;
+            break;
+
+        default:
+            return;
+        }
+
+        if (storable) {
+            undo->location[i].col = col;
+            undo->location[i].row = row;
+            undo->location[i].spot = current_info.board[row][col];
+        } else {
+            undo->location[i].spot = '\0';
+        }
+    }
+
+    if (undo_info.count < MAX_UNDOS) 
+        undo_info.count++;
+}
+
+static void init_boards(void)
+{
+    current_info.level.level = 0;
+    current_info.level.moves = 0;
+    current_info.level.boxes_to_go = 0;
+    current_info.player.row = 0;
+    current_info.player.col = 0;
+    current_info.player.spot = ' ';
+    current_info.max_level = 0;
+    current_info.level_offset = 0;
+    current_info.loaded_level = 0;
+
+    init_undo();
+}
+
+static int get_level_count(void) 
+{
+    int fd = 0;
+    int lastlen = 0;
+    char buffer[COLS + 3]; /* COLS plus CR/LF and \0 */
+
+    if ((fd = rb->open(LEVELS_FILE, O_RDONLY)) < 0) {
+        rb->splash(0, 0, true, "Unable to open %s", LEVELS_FILE);
+        return -1;
+    }
+
+    while(1) {
+        int len = rb->read_line(fd, buffer, sizeof(buffer));
+        if(len <= 0)
+            break;
+
+        /* Two short lines in a row means new level */
+        if(len < 3 && lastlen < 3)
+            current_info.max_level++;
+
+        lastlen = len;
+    }
+
+    rb->close(fd);
+    return 0;
+}
+
+static int get_level(char *level, int level_size) 
+{
+    int fd = 0, i = 0;
+    int nread = 0;
+    int count = 0;
+    int lastlen = 0;
+    int level_ct = 1;
+    unsigned char buffer[SOKOBAN_LEVEL_SIZE * 2];
+    bool level_found = false;
+
+    /* open file */
+    if ((fd = rb->open(LEVELS_FILE, O_RDONLY)) < 0)
+        return -1;
+
+    /* Lets not reparse the full file if we can avoid it */
+    if (current_info.loaded_level < current_info.level.level) {
+        rb->lseek(fd, current_info.level_offset, SEEK_SET);
+        level_ct = current_info.loaded_level;
+    }
+
+    if(current_info.level.level > 1) {
+        while(!level_found) {
+            int len = rb->read_line(fd, buffer, SOKOBAN_LEVEL_SIZE);
+            if(len <= 0) {
+                rb->close(fd);
+                return -1;
+            }
+            
+            /* Two short lines in a row means new level */
+            if(len < 3 && lastlen < 3) {
+                level_ct++;
+                if(level_ct == current_info.level.level)
+                    level_found = true;
+            }
+            lastlen = len;
+        }
+    }
+
+    /* Remember the current offset */
+    current_info.level_offset = rb->lseek(fd, 0, SEEK_CUR);
+    
+    /* read a full buffer chunk from here */
+    nread = rb->read(fd, buffer, sizeof(buffer)-1);
+    if (nread < 0)
+        return -1;
+    buffer[nread] = 0;
+    
+    rb->close(fd);
+    
+    /* If we read less then a level, error */
+    if (nread < level_size)
+        return -1;
+    
+    /* Load our new level */
+    for(i=0, count=0; (count < nread) && (i<level_size);) {
+        if (buffer[count] != '\n' && buffer[count] != '\r')
+            level[i++] = buffer[count];
+        count++;
+    }
+    level[i] = 0;
+
+    current_info.loaded_level = current_info.level.level;
+    return 0;
+}
+
+/* return non-zero on error */
+static int load_level(void)
+{
+    short c = 0;
+    short r = 0;
+    short i = 0;
+    char level[ROWS*COLS+1];
+    int x = 0;
+
+    current_info.player.spot=' ';
+    current_info.level.boxes_to_go = 0;
+    current_info.level.moves = 0;
+
+    if (get_level(level, sizeof(level)) != 0)
+        return -1;
+
+    i = 0;
+    for (r = 0; r < ROWS; r++) {
+        x++;
+        for (c = 0; c < COLS; c++, i++) {
+            current_info.board[r][c] = level[i];
+            
+            if (current_info.board[r][c] == '.')
+                current_info.level.boxes_to_go++;
+
+            else if (current_info.board[r][c] == '@') {
+                current_info.player.row = r;
+                current_info.player.col = c;
+            }
+        }
+    }
+
+    return 0;
+}
+
+static void update_screen(void) 
+{
+    short b = 0, c = 0;
+    short rows = 0, cols = 0;
+    char s[25];
+    
+    short magnify = 4;
+
+    /* load the board to the screen */
+    for (rows=0 ; rows < ROWS ; rows++) {
+        for (cols = 0 ; cols < COLS ; cols++) {
+            c = cols * magnify;
+            b = rows * magnify;
+
+            switch(current_info.board[rows][cols]) {
+            case 'X': /* black space */
+                rb->lcd_drawrect(c, b, magnify, magnify);
+                rb->lcd_drawrect(c+1, b+1, 2, 2);
+                break;
+                
+            case '#': /* this is a wall */
+                rb->lcd_drawpixel(c, b);
+                rb->lcd_drawpixel(c+2, b);
+                rb->lcd_drawpixel(c+1, b+1);
+                rb->lcd_drawpixel(c+3, b+1);
+                rb->lcd_drawpixel(c, b+2);
+                rb->lcd_drawpixel(c+2, b+2);
+                rb->lcd_drawpixel(c+1, b+3);
+                rb->lcd_drawpixel(c+3, b+3);
+                break;
+
+            case '.': /* this is a home location */
+                rb->lcd_drawrect(c+1, b+1, 2, 2);
+                break;
+
+            case '$': /* this is a box */
+                rb->lcd_drawrect(c, b, magnify, magnify);
+                break;
+
+            case '@': /* this is you */
+                rb->lcd_drawline(c+1, b, c+2, b);
+                rb->lcd_drawline(c, b+1, c+3, b+1);
+                rb->lcd_drawline(c+1, b+2, c+2, b+2);
+
+                rb->lcd_drawpixel(c, b+3);
+                rb->lcd_drawpixel(c+3, b+3);
+                break;
+
+            case '%': /* this is a box on a home spot */ 
+                rb->lcd_drawrect(c, b, magnify, magnify);
+                rb->lcd_drawrect(c+1, b+1, 2, 2);
+                break;
+            }
+        }
+    }
+    
+
+    rb->snprintf(s, sizeof(s), "%d", current_info.level.level);
+    rb->lcd_putsxy(86, 22, s);
+    rb->snprintf(s, sizeof(s), "%d", current_info.level.moves);
+    rb->lcd_putsxy(86, 54, s);
+
+    rb->lcd_drawrect(80,0,32,32);
+    rb->lcd_drawrect(80,32,32,64);
+    rb->lcd_putsxy(81, 10, "Level");
+    rb->lcd_putsxy(81, 42, "Moves");
+
+    /* print out the screen */
+    rb->lcd_update();
+}
+
+static void draw_level(void)
+{
+    load_level();
+    rb->lcd_clear_display();
+    update_screen();
+}
+
+static bool sokoban_loop(void)
+{
+    char new_spot;
+    bool moved = true;
+    int i = 0, button = 0;
+    short r = 0, c = 0;
+
+    current_info.level.level = 1;
+
+    load_level();
+    update_screen(); 
+
+    while (1) {
+        moved = true;
+
+        r = current_info.player.row;
+        c = current_info.player.col;
+
+        button = rb->button_get(true);
+
+        add_undo(button);
+
+        switch(button) 
+        {
+            case BUTTON_OFF:
+                /* get out of here */
+                return PLUGIN_OK; 
+
+            case BUTTON_ON:
+            case BUTTON_ON | BUTTON_REPEAT:
+                /* this is UNDO */
+                undo();
+                rb->lcd_clear_display();
+                update_screen(); 
+                moved = false;
+                break;
+
+            case BUTTON_F3:
+            case BUTTON_F3 | BUTTON_REPEAT:
+                /* increase level */
+                init_undo();
+                current_info.level.boxes_to_go=0;
+                moved = true;
+                break;
+
+            case BUTTON_F1:
+            case BUTTON_F1 | BUTTON_REPEAT:
+                /* previous level */
+                init_undo();
+                if (current_info.level.level > 1)
+                    current_info.level.level--;
+
+                draw_level();
+                moved = false;
+                break;
+
+            case BUTTON_F2:
+            case BUTTON_F2 | BUTTON_REPEAT:
+                /* same level */
+                init_undo();
+                draw_level();
+                moved = false;
+                break;
+
+            case BUTTON_LEFT:
+                switch(current_info.board[r][c-1]) 
+                {
+                    case ' ': /* if it is a blank spot */
+                    case '.': /* if it is a home spot */
+                        new_spot = current_info.board[r][c-1];
+                        current_info.board[r][c-1] = '@';
+                        current_info.board[r][c] = current_info.player.spot;
+                        current_info.player.spot = new_spot;
+                        break;
+
+                    case '$':
+                        switch(current_info.board[r][c-2])
+                        {
+                            case ' ': /* going from blank to blank */
+                                current_info.board[r][c-2] = current_info.board[r][c-1];
+                                current_info.board[r][c-1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = ' ';
+                                break;
+
+                            case '.': /* going from a blank to home */
+                                current_info.board[r][c-2] = '%';
+                                current_info.board[r][c-1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = ' ';
+                                current_info.level.boxes_to_go--;
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    case '%':
+                        switch(current_info.board[r][c-2]) {
+                            case ' ': /* we are going from a home to a blank */
+                                current_info.board[r][c-2] = '$';
+                                current_info.board[r][c-1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = '.';
+                                current_info.level.boxes_to_go++;
+                                break;
+
+                            case '.': /* if we are going from a home to home */
+                                current_info.board[r][c-2] = '%';
+                                current_info.board[r][c-1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = '.';
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    default:
+                        moved = false;
+                        break;
+                }
+
+                if (moved)
+                    current_info.player.col--;
+                break;
+
+            case BUTTON_RIGHT: /* if it is a blank spot */
+                switch(current_info.board[r][c+1]) {
+                    case ' ':
+                    case '.': /* if it is a home spot */
+                        new_spot = current_info.board[r][c+1];
+                        current_info.board[r][c+1] = '@';
+                        current_info.board[r][c] = current_info.player.spot;
+                        current_info.player.spot = new_spot;
+                        break;
+
+                    case '$': 
+                        switch(current_info.board[r][c+2]) {
+                            case ' ': /* going from blank to blank */
+                                current_info.board[r][c+2] = current_info.board[r][c+1];
+                                current_info.board[r][c+1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = ' ';
+                                break;
+
+                            case '.': /* going from a blank to home */
+                                current_info.board[r][c+2] = '%';
+                                current_info.board[r][c+1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = ' ';
+                                current_info.level.boxes_to_go--;
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    case '%':
+                        switch(current_info.board[r][c+2]) {
+                            case ' ': /* going from a home to a blank */
+                                current_info.board[r][c+2] = '$';
+                                current_info.board[r][c+1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = '.';
+                                current_info.level.boxes_to_go++;
+                                break;
+
+                            case '.':
+                                current_info.board[r][c+2] = '%';
+                                current_info.board[r][c+1] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = '.';
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    default:
+                        moved = false;
+                        break;
+                }
+
+                if (moved)
+                    current_info.player.col++;
+                break;
+
+            case BUTTON_UP:
+                switch(current_info.board[r-1][c]) {
+                    case ' ': /* if it is a blank spot */
+                    case '.': /* if it is a home spot */
+                        new_spot = current_info.board[r-1][c];
+                        current_info.board[r-1][c] = '@';
+                        current_info.board[r][c] = current_info.player.spot;
+                        current_info.player.spot = new_spot;
+                        break;
+
+                    case '$':
+                        switch(current_info.board[r-2][c]) {
+                            case ' ': /* going from blank to blank */
+                                current_info.board[r-2][c] = current_info.board[r-1][c];
+                                current_info.board[r-1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = ' ';
+                                break;
+
+                            case '.': /* going from a blank to home */
+                                current_info.board[r-2][c] = '%';
+                                current_info.board[r-1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = ' ';
+                                current_info.level.boxes_to_go--;
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    case '%':
+                        switch(current_info.board[r-2][c]) {
+                            case ' ': /* we are going from a home to a blank */
+                                current_info.board[r-2][c] = '$';
+                                current_info.board[r-1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = '.';
+                                current_info.level.boxes_to_go++;
+                                break;
+
+                            case '.': /* if we are going from a home to home */
+                                current_info.board[r-2][c] = '%';
+                                current_info.board[r-1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = '.';
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    default:
+                        moved = false;
+                        break;
+                }
+
+                if (moved)
+                    current_info.player.row--;
+                break;
+
+            case BUTTON_DOWN:
+                switch(current_info.board[r+1][c]) {
+                    case ' ': /* if it is a blank spot */
+                    case '.': /* if it is a home spot */
+                        new_spot = current_info.board[r+1][c];
+                        current_info.board[r+1][c] = '@';
+                        current_info.board[r][c] = current_info.player.spot;
+                        current_info.player.spot = new_spot;
+                        break;
+
+                    case '$':
+                        switch(current_info.board[r+2][c]) {
+                            case ' ': /* going from blank to blank */
+                                current_info.board[r+2][c] = current_info.board[r+1][c];
+                                current_info.board[r+1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = ' ';
+                                break;
+
+                            case '.': /* going from a blank to home */
+                                current_info.board[r+2][c] = '%';
+                                current_info.board[r+1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = ' ';
+                                current_info.level.boxes_to_go--;
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    case '%':
+                        switch(current_info.board[r+2][c]) {
+                            case ' ': /* going from a home to a blank */
+                                current_info.board[r+2][c] = '$';
+                                current_info.board[r+1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot;
+                                current_info.player.spot = '.';
+                                current_info.level.boxes_to_go++;
+                                break;
+
+                            case '.': /* going from a home to home */
+                                current_info.board[r+2][c] = '%';
+                                current_info.board[r+1][c] = current_info.board[r][c];
+                                current_info.board[r][c] = current_info.player.spot; 
+                                current_info.player.spot = '.';
+                                break;
+
+                            default:
+                                moved = false;
+                                break;
+                        }
+                        break;
+
+                    default:
+                        moved = false;
+                        break;
+                }
+
+                if (moved)
+                    current_info.player.row++;
+                break;
+
+            case SYS_USB_CONNECTED:
+                rb->usb_screen();
+                return PLUGIN_USB_CONNECTED;
+
+            default:
+                moved = false;
+                break;
+        }
+        
+        if (moved) {
+            current_info.level.moves++;
+            rb->lcd_clear_display();
+            update_screen(); 
+        }
+
+        /* We have completed this level */
+        if (current_info.level.boxes_to_go == 0) {
+            current_info.level.level++;
+
+            /* clear undo stats */
+            init_undo();
+
+            rb->lcd_clear_display();
+			
+            if (current_info.level.level > current_info.max_level) {
+                rb->lcd_putsxy(10, 20, "You WIN!!");
+
+                for (i = 0; i < 30000 ; i++) {
+                    rb->lcd_invertrect(0, 0, 111, 63);
+                    rb->lcd_update();
+
+                    button = rb->button_get(false);
+                    if (button && ((button & BUTTON_REL) != BUTTON_REL))
+                        break;
+                }
+
+                return PLUGIN_OK;
+            }
+
+            load_level();
+            update_screen();
+        }
+
+    } /* end while */
+
+    return PLUGIN_OK;
+}
+
+
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    int w, h;
+    int len;
+
+    TEST_PLUGIN_API(api);
+    (void)(parameter);
+    rb = api;
+    
+    rb->lcd_setfont(FONT_SYSFIXED);
+    rb->lcd_getstringsize(SOKOBAN_TITLE, &w, &h);
+
+    /* Get horizontel centering for text */
+    len = w;
+    if (len%2 != 0)
+        len =((len+1)/2)+(w/2);
+    else
+        len /= 2;
+
+    if (h%2 != 0)
+        h = (h/2)+1;
+    else
+        h /= 2;
+
+    rb->lcd_clear_display();
+    rb->lcd_putsxy(LCD_WIDTH/2-len,(LCD_HEIGHT/2)-h, SOKOBAN_TITLE);
+    rb->lcd_update();
+    rb->sleep(HZ*2);
+
+    rb->lcd_clear_display();
+
+    rb->lcd_putsxy(3,  6, "[OFF] To Stop");
+    rb->lcd_putsxy(3, 16, "[ON] To Undo");
+    rb->lcd_putsxy(3, 26, "[F1] - Level");
+    rb->lcd_putsxy(3, 36, "[F2] Same Level");
+    rb->lcd_putsxy(3, 46, "[F3] + Level");
+
+    rb->lcd_update();
+    rb->sleep(HZ*2);
+    rb->lcd_clear_display();
+
+    init_boards();
+
+    if (get_level_count() != 0) {
+        rb->splash(HZ*2,0,true,"Failed loading levels!");
+        return PLUGIN_OK;
+    }
+
+    return sokoban_loop();
+}
+
+#endif
diff --git a/apps/viewer.c b/apps/plugins/viewer.c
index f653866626..f8dc309a6e 100644
--- a/apps/viewer.c
+++ b/apps/plugins/viewer.c
@@ -17,24 +17,9 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <stdbool.h>
-
-#include "file.h"
-#include "lcd.h"
-#include "button.h"
-#include "kernel.h"
-#include "font.h"
-#include "settings.h"
-#include "icons.h"
-#include "screens.h"
-#include "status.h"
-
+#include "plugin.h"
 
 #define BUFFER_SIZE 1024
-
 #define OUTSIDE_BUFFER -10
 #define OUTSIDE_FILE   -11
 
@@ -50,6 +35,7 @@ static int begin_line; /* Index of the first line displayed on the lcd */
 static int end_line;   /* Index of the last line displayed on the lcd */
 static int begin_line_pos; /* Position of the first_line in the bufffer */
 static int end_line_pos; /* Position of the last_line in the buffer */
+static struct plugin_api* rb;
 
 /*
  * Known issue: The caching algorithm will fail (display incoherent data) if
@@ -61,7 +47,7 @@ static void display_line_count(void)
 {
 #ifdef HAVE_LCD_BITMAP
     int w,h;
-    lcd_getstringsize("M", &w, &h);
+    rb->lcd_getstringsize("M", &w, &h);
     display_lines = LCD_HEIGHT / h;
     display_columns = LCD_WIDTH / w;
 #else
@@ -126,7 +112,7 @@ static void viewer_draw(int col)
     char* str;
     int line_pos;
 
-    lcd_clear_display();
+    rb->lcd_clear_display();
 
     line_pos = begin_line_pos;
 
@@ -137,11 +123,12 @@ static void viewer_draw(int col)
         str = buffer + line_pos + 1;
         for (j=0; j<col && *str!=0; ++j)
             str++;
-        lcd_puts(0, i, str);
+        rb->lcd_puts(0, i, str);
         line_pos = find_next_line(line_pos);
     }
-
-    lcd_update();
+#ifdef HAVE_LCD_BITMAP
+    rb->lcd_update();
+#endif
 }
 
 static void fill_buffer(int pos)
@@ -154,8 +141,8 @@ static void fill_buffer(int pos)
     if (pos<0)
         pos = 0;
 
-    lseek(fd, pos, SEEK_SET);
-    numread = read(fd, buffer, BUFFER_SIZE);
+    rb->lseek(fd, pos, SEEK_SET);
+    numread = rb->read(fd, buffer, BUFFER_SIZE);
 
     begin_line_pos -= pos - buffer_pos;
     end_line_pos -= pos - buffer_pos;
@@ -181,11 +168,11 @@ static bool viewer_init(char* file)
     int i;
     int ret;
 
-    fd = open(file, O_RDONLY);
+    fd = rb->open(file, O_RDONLY);
     if (fd==-1)
         return false;
 
-    file_size = lseek(fd, 0, SEEK_END);
+    file_size = rb->lseek(fd, 0, SEEK_END);
 
     buffer_pos = 0;
     begin_line = 0;
@@ -207,7 +194,7 @@ static bool viewer_init(char* file)
 
 static void viewer_exit(void)
 {
-    close(fd);
+    rb->close(fd);
 }
 
 static void viewer_scroll_down(void)
@@ -264,7 +251,7 @@ static int pagescroll(int col)
     int i;
 
     while (!exit) {
-        switch (button_get(true)) {
+        switch (rb->button_get(true)) {
 #ifdef HAVE_RECORDER_KEYPAD
             case BUTTON_ON | BUTTON_UP:
             case BUTTON_ON | BUTTON_UP | BUTTON_REPEAT:
@@ -328,31 +315,30 @@ static int pagescroll(int col)
 
     return col;
 }
-bool viewer_run(char* file)
+
+enum plugin_status plugin_start(struct plugin_api* api, void* file)
 {
     bool exit=false;
     int button;
     int col = 0;
     int ok;
 
-#ifdef HAVE_LCD_BITMAP
-    /* no margins */
-    lcd_setmargins(0, 0);
-#endif
+    TEST_PLUGIN_API(api);
+    rb = api;
+
+    if (!file)
+        return PLUGIN_ERROR;
 
     ok = viewer_init(file);
     if (!ok) {
-        lcd_clear_display();
-        lcd_puts(0, 0, "Error");
-        lcd_update();
-        sleep(HZ);
+        rb->splash(HZ, 0, false, "Error");
         viewer_exit();
-        return false;
+        return PLUGIN_OK;
     }
 
     viewer_draw(col);
     while (!exit) {
-        button = button_get(true);
+        button = rb->button_get(true);
 
         switch ( button ) {
 
@@ -420,13 +406,10 @@ bool viewer_run(char* file)
                 break;
 
             case SYS_USB_CONNECTED:
-                usb_screen();
-#ifdef HAVE_LCD_CHARCELLS
-                status_set_param(false);
-#endif
+                rb->usb_screen();
                 viewer_exit();
-                return true;
+                return PLUGIN_USB_CONNECTED;
         }
     }
-    return false;
+    return PLUGIN_OK;
 }
diff --git a/apps/recorder/wormlet.c b/apps/plugins/wormlet.c
index 2937a1bb83..be089cdb7c 100644
--- a/apps/recorder/wormlet.c
+++ b/apps/plugins/wormlet.c
@@ -16,26 +16,9 @@
  * KIND, either express or implied.
  *
  ****************************************************************************/
+#include "plugin.h"
 
-#include "config.h"
-#include "options.h"
-
-#ifdef USE_GAMES
-
-/* #define DEBUG_WORMLET */
-
-#include <sprintf.h>
-#include <stdlib.h>
-#include <string.h>
-#include "system.h"
-#include "lcd.h"
-#include "button.h"
-#include "kernel.h"
-#include "menu.h"
-#include "rtc.h"
-#include "lang.h"
-#include "screens.h"
-#include "font.h"
+#ifdef HAVE_LCD_BITMAP
 
 /* size of the field the worm lives in */
 #define FIELD_RECT_X 1
@@ -149,6 +132,9 @@ static int player3_dir = EAST;
    control a worm */
 static int players = 1;
 
+/* the rockbox plugin api */
+static struct plugin_api* rb;
+
 #ifdef DEBUG_WORMLET
 static void set_debug_out(char *str){
     strcpy(debugout, str);
@@ -507,8 +493,8 @@ static int make_food(int index) {
     do {
         /* make coordinates for a new food so that
            the entire food lies within the FIELD */
-        x = rand() % (FIELD_RECT_WIDTH  - FOOD_SIZE);
-        y = rand() % (FIELD_RECT_HEIGHT - FOOD_SIZE);
+        x = rb->rand() % (FIELD_RECT_WIDTH  - FOOD_SIZE);
+        y = rb->rand() % (FIELD_RECT_HEIGHT - FOOD_SIZE);
         tries ++;
 
         /* Ensure that the new food doesn't collide with any
@@ -549,7 +535,7 @@ static int make_food(int index) {
 static void clear_food(int index)
 {
     /* remove the old food from the screen */
-    lcd_clearrect(foodx[index] + FIELD_RECT_X, 
+    rb->lcd_clearrect(foodx[index] + FIELD_RECT_X, 
                   foody[index] + FIELD_RECT_Y, 
                   FOOD_SIZE, FOOD_SIZE);
 }
@@ -563,10 +549,10 @@ static void clear_food(int index)
 static void draw_food(int index)
 {
     /* draw the food object */
-    lcd_fillrect(foodx[index] + FIELD_RECT_X, 
+    rb->lcd_fillrect(foodx[index] + FIELD_RECT_X, 
                  foody[index] + FIELD_RECT_Y, 
                  FOOD_SIZE, FOOD_SIZE);
-    lcd_clearrect(foodx[index] + FIELD_RECT_X + 1, 
+    rb->lcd_clearrect(foodx[index] + FIELD_RECT_X + 1, 
                   foody[index] + FIELD_RECT_Y + 1, 
                   FOOD_SIZE - 2, FOOD_SIZE - 2);
 }
@@ -588,8 +574,8 @@ static int make_argh(int index)
     do {
         /* make coordinates for a new argh so that
            the entire food lies within the FIELD */
-        x = rand() % (FIELD_RECT_WIDTH  - ARGH_SIZE);
-        y = rand() % (FIELD_RECT_HEIGHT - ARGH_SIZE);
+        x = rb->rand() % (FIELD_RECT_WIDTH  - ARGH_SIZE);
+        y = rb->rand() % (FIELD_RECT_HEIGHT - ARGH_SIZE);
         tries ++;
 
         /* Ensure that the new argh doesn't intersect with any
@@ -631,7 +617,7 @@ static int make_argh(int index)
 static void draw_argh(int index)
 {
     /* draw the new argh */
-    lcd_fillrect(arghx[index] + FIELD_RECT_X, 
+    rb->lcd_fillrect(arghx[index] + FIELD_RECT_X, 
                  arghy[index] + FIELD_RECT_Y, 
                  ARGH_SIZE, ARGH_SIZE);
 }
@@ -744,7 +730,7 @@ static void init_wormlet(void)
     }
 
     /* Needed when the game is restarted using BUTTON_ON */
-    lcd_clear_display();
+    rb->lcd_clear_display();
 
     /* make and display some food and argh */
     argh_count = MAX_FOOD;
@@ -756,11 +742,11 @@ static void init_wormlet(void)
     }
 
     /* draw the game field */
-    lcd_invertrect(0, 0, FIELD_RECT_WIDTH + 2, FIELD_RECT_HEIGHT + 2);
-    lcd_invertrect(1, 1, FIELD_RECT_WIDTH, FIELD_RECT_HEIGHT);
+    rb->lcd_invertrect(0, 0, FIELD_RECT_WIDTH + 2, FIELD_RECT_HEIGHT + 2);
+    rb->lcd_invertrect(1, 1, FIELD_RECT_WIDTH, FIELD_RECT_HEIGHT);
 
     /* make everything visible */
-    lcd_update();
+    rb->lcd_update();
 }
 
 
@@ -852,14 +838,14 @@ static void draw_worm(struct worm *w)
     int x = w->x[w->head];
     int y = w->y[w->head];
     if (x >= 0 && x < FIELD_RECT_WIDTH && y >= 0 && y < FIELD_RECT_HEIGHT) {
-        lcd_drawpixel(x + FIELD_RECT_X, y + FIELD_RECT_Y);
+        rb->lcd_drawpixel(x + FIELD_RECT_X, y + FIELD_RECT_Y);
     }
 
     /* clear the space behind the worm */
     x = w->x[w->tail] ;
     y = w->y[w->tail] ;
     if (x >= 0 && x < FIELD_RECT_WIDTH && y >= 0 && y < FIELD_RECT_HEIGHT) {
-        lcd_clearpixel(x + FIELD_RECT_X, y + FIELD_RECT_Y);
+        rb->lcd_clearpixel(x + FIELD_RECT_X, y + FIELD_RECT_Y);
     }
 }
 
@@ -1166,10 +1152,10 @@ static void virtual_player(struct worm *w) {
 static void score_board(void)
 {
     char buf[15];
-    char buf2[15];
+    char* buf2 = NULL;
     int i;
     int y = 0;
-    lcd_clearrect(FIELD_RECT_WIDTH + 2, 0, LCD_WIDTH - FIELD_RECT_WIDTH - 2, LCD_HEIGHT);
+    rb->lcd_clearrect(FIELD_RECT_WIDTH + 2, 0, LCD_WIDTH - FIELD_RECT_WIDTH - 2, LCD_HEIGHT);
     for (i = 0; i < worm_count; i++) {
         int score = get_score(&worms[i]);
     
@@ -1180,54 +1166,52 @@ static void score_board(void)
             }
         }
 
-    /* length */
-        snprintf(buf, sizeof (buf),str(LANG_WORMLET_LENGTH), score);
+        /* length */
+        rb->snprintf(buf, sizeof (buf),"Len:%d", score);
 
         /* worm state */
         switch (check_collision(&worms[i])) {
-        case COLLISION_NONE:  
-                if (worms[i].growing > 0){
-                    snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_GROWING));
-                }
+            case COLLISION_NONE:  
+                if (worms[i].growing > 0)
+                    buf2 = "Growing";
                 else {
-                    if (worms[i].alive) {
-                        snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_HUNGRY));
-                    } else {
-                        snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_WORMED));
-                    }
+                    if (worms[i].alive)
+                        buf2 = "Hungry";
+                    else
+                        buf2 = "Wormed";
                 }
-            break;
+                break;
 
-        case COLLISION_WORM:  
-                snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_WORMED));
-            break;
+            case COLLISION_WORM:  
+                buf2 = "Wormed";
+                break;
 
-        case COLLISION_FOOD:  
-                snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_GROWING));
-            break;
+            case COLLISION_FOOD:  
+                buf2 = "Growing";
+                break;
 
-        case COLLISION_ARGH:  
-                snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_ARGH));
-            break;
+            case COLLISION_ARGH:  
+                buf2 = "Argh";
+                break;
 
-        case COLLISION_FIELD: 
-                snprintf(buf2, sizeof(buf2), str(LANG_WORMLET_CRASHED));
-            break;
-    }
-        lcd_putsxy(FIELD_RECT_WIDTH + 3, y  , buf);
-        lcd_putsxy(FIELD_RECT_WIDTH + 3, y+8, buf2);
+            case COLLISION_FIELD: 
+                buf2 = "Crashed";
+                break;
+        }
+        rb->lcd_putsxy(FIELD_RECT_WIDTH + 3, y  , buf);
+        rb->lcd_putsxy(FIELD_RECT_WIDTH + 3, y+8, buf2);
 
         if (!worms[i].alive){
-            lcd_invertrect(FIELD_RECT_WIDTH + 2, y, 
-                           LCD_WIDTH - FIELD_RECT_WIDTH - 2, 17);
+            rb->lcd_invertrect(FIELD_RECT_WIDTH + 2, y, 
+                               LCD_WIDTH - FIELD_RECT_WIDTH - 2, 17);
         }
         y += 19;
     }
-    snprintf(buf , sizeof(buf), str(LANG_WORMLET_HIGHSCORE), highscore);
+    rb->snprintf(buf , sizeof(buf), "Hs: %d", highscore);
 #ifndef DEBUG_WORMLET
-    lcd_putsxy(FIELD_RECT_WIDTH + 3, LCD_HEIGHT - 8, buf);
+    rb->lcd_putsxy(FIELD_RECT_WIDTH + 3, LCD_HEIGHT - 8, buf);
 #else
-    lcd_putsxy(FIELD_RECT_WIDTH + 3, LCD_HEIGHT - 8, debugout);
+    rb->lcd_putsxy(FIELD_RECT_WIDTH + 3, LCD_HEIGHT - 8, debugout);
 #endif
 }
 
@@ -1305,7 +1289,7 @@ static bool run(void)
     /* initialize the board and so on */
     init_wormlet();
 
-    cycle_start = current_tick;
+    cycle_start = *rb->current_tick;
     /* change the direction of the worm */
     while (button != BUTTON_OFF && ! wormDead)
     {
@@ -1358,7 +1342,7 @@ static bool run(void)
 
             case BUTTON_PLAY:
                 do {
-                    button = button_get(true);
+                    button = rb->button_get(true);
                 } while (button != BUTTON_PLAY &&
                          button != BUTTON_OFF  &&
                          button != BUTTON_ON);
@@ -1377,7 +1361,7 @@ static bool run(void)
             draw_worm(w);
         }
         score_board();
-        lcd_update();
+        rb->lcd_update();
         if (button == BUTTON_ON) {
             wormDead = true;
         }
@@ -1385,7 +1369,7 @@ static bool run(void)
         /* here the wormlet game cycle ends
            thus the current tick is stored
            as end time */
-        cycle_end = current_tick;
+        cycle_end = *rb->current_tick;
 
         /* The duration of the game cycle */
         cycle_duration = cycle_end - cycle_start;
@@ -1403,15 +1387,14 @@ static bool run(void)
             max_cycle = cycle_duration;
             ticks_to_max_cycle_reset = 20;
         }
-        snprintf(buf, sizeof buf, "ticks %d", max_cycle);
+        rb->snprintf(buf, sizeof buf, "ticks %d", max_cycle);
         set_debug_out(buf);
 #endif
         /* adjust the number of ticks to wait for a button.
            This ensures that a complete game cycle including
            user input runs in constant time */
-        button = button_get_w_tmo(SPEED - cycle_duration);
-        cycle_start = current_tick;
-
+        button = rb->button_get_w_tmo(SPEED - cycle_duration);
+        cycle_start = *rb->current_tick;
     }
     return wormDead;
 }
@@ -1425,7 +1408,7 @@ static bool run(void)
 static void test_worm_food_collision(void) {
     int collision_count = 0;
     int i;
-    lcd_clear_display();
+    rb->lcd_clear_display();
     init_worm(&worms[0], 10, 10);
     add_growing(&worms[0], 10);
     set_worm_dir(&worms[0], EAST);
@@ -1451,12 +1434,12 @@ static void test_worm_food_collision(void) {
         if (collision) {
             collision_count++;
         }
-        snprintf(buf, sizeof buf, "collisions: %d", collision_count);
-        lcd_putsxy(0, LCD_HEIGHT -8, buf);
-        lcd_update();
+        rb->snprintf(buf, sizeof buf, "collisions: %d", collision_count);
+        rb->lcd_putsxy(0, LCD_HEIGHT -8, buf);
+        rb->lcd_update();
     }
     if (collision_count != FOOD_SIZE) {
-        button_get(true);
+        rb->button_get(true);
     }
 
 
@@ -1470,12 +1453,12 @@ static void test_worm_food_collision(void) {
         if (collision) {
             collision_count ++;
         }
-        snprintf(buf, sizeof buf, "collisions: %d", collision_count);
-        lcd_putsxy(0, LCD_HEIGHT -8, buf);
-        lcd_update();
+        rb->snprintf(buf, sizeof buf, "collisions: %d", collision_count);
+        rb->lcd_putsxy(0, LCD_HEIGHT -8, buf);
+        rb->lcd_update();
     }
     if (collision_count != FOOD_SIZE * 2) {
-        button_get(true);
+        rb->button_get(true);
     }
 
 }
@@ -1498,7 +1481,7 @@ static void test_worm_argh_collision(void) {
     int i;
     int dir;
     int collision_count = 0;
-    lcd_clear_display();
+    rb->lcd_clear_display();
     init_worm(&worms[0], 10, 10);
     add_growing(&worms[0], 40);
     for (dir = 0; dir < 4; dir++) {
@@ -1518,12 +1501,12 @@ static void test_worm_argh_collision(void) {
         if (collision) {
             collision_count ++;
         }
-        snprintf(buf, sizeof buf, "collisions: %d", collision_count);
-        lcd_putsxy(0, LCD_HEIGHT -8, buf);
-        lcd_update();
+        rb->snprintf(buf, sizeof buf, "collisions: %d", collision_count);
+        rb->lcd_putsxy(0, LCD_HEIGHT -8, buf);
+        rb->lcd_update();
     }
     if (collision_count != ARGH_SIZE * 2) {
-        button_get(true);
+        rb->button_get(true);
     }
 
     arghy[0] = 12;
@@ -1535,12 +1518,12 @@ static void test_worm_argh_collision(void) {
         if (collision) {
             collision_count ++;
         }
-        snprintf(buf, sizeof buf, "collisions: %d", collision_count);
-        lcd_putsxy(0, LCD_HEIGHT -8, buf);
-        lcd_update();
+        rb->snprintf(buf, sizeof buf, "collisions: %d", collision_count);
+        rb->lcd_putsxy(0, LCD_HEIGHT -8, buf);
+        rb->lcd_update();
     }
     if (collision_count != ARGH_SIZE * 4) {
-        button_get(true);
+        rb->button_get(true);
     }
 }
 
@@ -1560,11 +1543,11 @@ static int testline_in_rect(void) {
 
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_update();
-        lcd_putsxy(0, 0, "failed 1");
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_update();
+        rb->lcd_putsxy(0, 0, "failed 1");
+        rb->button_get(true);
         testfailed = 1;
     }
 
@@ -1572,11 +1555,11 @@ static int testline_in_rect(void) {
     y2 = 20;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 2");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 2");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 2;
     }
 
@@ -1584,11 +1567,11 @@ static int testline_in_rect(void) {
     y1 = 30;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 3");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 3");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 3;
     }
 
@@ -1596,11 +1579,11 @@ static int testline_in_rect(void) {
     y2 = 45;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 4");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 4");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 4;
     }
 
@@ -1608,11 +1591,11 @@ static int testline_in_rect(void) {
     y1 = 50;
     if (line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) ||
         line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 5");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 5");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 5;
     }
 
@@ -1621,11 +1604,11 @@ static int testline_in_rect(void) {
     y2 = 7;
     if (line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) ||
         line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 6");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 6");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 6;
     }
 
@@ -1636,11 +1619,11 @@ static int testline_in_rect(void) {
     y2 = 20;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 7");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 7");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 7;
     }
 
@@ -1648,11 +1631,11 @@ static int testline_in_rect(void) {
     x2 = 12;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 8");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 8");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 8;
     }
 
@@ -1660,11 +1643,11 @@ static int testline_in_rect(void) {
     x1 = 25;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 9");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 9");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 9;
     }
 
@@ -1672,11 +1655,11 @@ static int testline_in_rect(void) {
     x2 = 37;
     if (!line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
         !line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 10");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 10");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 10;
     }
 
@@ -1684,11 +1667,11 @@ static int testline_in_rect(void) {
     x1 = 42;
     if (line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) ||
         line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 11");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 11");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 11;
     }
 
@@ -1697,11 +1680,11 @@ static int testline_in_rect(void) {
     x2 = 7;
     if (line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) ||
         line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh)) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 12");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 12");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 12;
     }
 
@@ -1717,11 +1700,11 @@ static int testline_in_rect(void) {
     y2 = 20;
     if (!(line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
           line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh))) {
-        lcd_drawrect(rx, ry, rw, rh);
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_putsxy(0, 0, "failed 13");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawrect(rx, ry, rw, rh);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_putsxy(0, 0, "failed 13");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 13;
     }
 
@@ -1737,15 +1720,15 @@ static int testline_in_rect(void) {
     y2 = 19;
     if (!(line_in_rect(x1, y1, x2, y2, rx, ry, rw, rh) &&
           line_in_rect(x2, y2, x1, y1, rx, ry, rw, rh))) {
-        lcd_drawline(x1, y1, x2, y2);
-        lcd_invertrect(rx, ry, rw, rh);
-        lcd_putsxy(0, 0, "failed 14");
-        lcd_update();
-        button_get(true);
+        rb->lcd_drawline(x1, y1, x2, y2);
+        rb->lcd_invertrect(rx, ry, rw, rh);
+        rb->lcd_putsxy(0, 0, "failed 14");
+        rb->lcd_update();
+        rb->button_get(true);
         testfailed = 14;
     }
 
-    lcd_clear_display();
+    rb->lcd_clear_display();
 
     return testfailed;
 }
@@ -1759,7 +1742,7 @@ static int test_specific_worm_collision(void) {
     int x = 0;
     int y = 0;
     char buf[20];
-    lcd_clear_display();
+    rb->lcd_clear_display();
     init_worm(&worms[0], 10, 20);
     add_growing(&worms[0], 20 - INITIAL_WORM_LENGTH);
 
@@ -1779,14 +1762,14 @@ static int test_specific_worm_collision(void) {
             if (specific_worm_collision(&worms[0], x, y) != -1) {
                 collisions ++;
             }
-            lcd_invertpixel(x + FIELD_RECT_X, y + FIELD_RECT_Y);
-            snprintf(buf, sizeof buf, "collisions %d", collisions);
-            lcd_putsxy(0, LCD_HEIGHT - 8, buf);
-            lcd_update();
+            rb->lcd_invertpixel(x + FIELD_RECT_X, y + FIELD_RECT_Y);
+            rb->snprintf(buf, sizeof buf, "collisions %d", collisions);
+            rb->lcd_putsxy(0, LCD_HEIGHT - 8, buf);
+            rb->lcd_update();
         }
     }
     if (collisions != 21) {
-        button_get(true);
+        rb->button_get(true);
     }
     return collisions;
 }
@@ -1798,7 +1781,7 @@ static void test_make_argh(void){
     int failures = 0;
     int last_failures = 0;
     int i, worm_idx;
-    lcd_clear_display();
+    rb->lcd_clear_display();
     worm_count = 3;
 
     for (worm_idx = 0; worm_idx < worm_count; worm_idx++) {
@@ -1818,37 +1801,37 @@ static void test_make_argh(void){
         }
     }
 
-    lcd_update();
+    rb->lcd_update();
 
     for (seed = 0; hit < 20; seed += 2) {
             char buf[20];
         int x, y;
-        srand(seed);
-        x = rand() % (FIELD_RECT_WIDTH  - ARGH_SIZE);
-        y = rand() % (FIELD_RECT_HEIGHT - ARGH_SIZE);
+        rb->srand(seed);
+        x = rb->rand() % (FIELD_RECT_WIDTH  - ARGH_SIZE);
+        y = rb->rand() % (FIELD_RECT_HEIGHT - ARGH_SIZE);
 
         for (worm_idx = 0; worm_idx < worm_count; worm_idx++){
             if (expensive_worm_in_rect(&worms[worm_idx], x, y, ARGH_SIZE, ARGH_SIZE)) {
                 int tries = 0;
-            srand(seed);
+            rb->srand(seed);
 
                 tries = make_argh(0);
                 if ((x == arghx[0] && y == arghy[0]) || tries < 2) {
                 failures ++;
             }
 
-                snprintf(buf, sizeof buf, "(%d;%d) fail%d try%d", x, y, failures, tries);
-            lcd_putsxy(0, LCD_HEIGHT - 8, buf);
-            lcd_update();
-                lcd_invertrect(x + FIELD_RECT_X, y+ FIELD_RECT_Y, ARGH_SIZE, ARGH_SIZE);
-                lcd_update();
+                rb->snprintf(buf, sizeof buf, "(%d;%d) fail%d try%d", x, y, failures, tries);
+            rb->lcd_putsxy(0, LCD_HEIGHT - 8, buf);
+            rb->lcd_update();
+                rb->lcd_invertrect(x + FIELD_RECT_X, y+ FIELD_RECT_Y, ARGH_SIZE, ARGH_SIZE);
+                rb->lcd_update();
                 draw_argh(0);
-                lcd_update();
-            lcd_invertrect(x + FIELD_RECT_X, y + FIELD_RECT_Y, ARGH_SIZE, ARGH_SIZE);
-            lcd_clearrect(arghx[0] + FIELD_RECT_X, arghy[0] + FIELD_RECT_Y, ARGH_SIZE, ARGH_SIZE);
+                rb->lcd_update();
+            rb->lcd_invertrect(x + FIELD_RECT_X, y + FIELD_RECT_Y, ARGH_SIZE, ARGH_SIZE);
+            rb->lcd_clearrect(arghx[0] + FIELD_RECT_X, arghy[0] + FIELD_RECT_Y, ARGH_SIZE, ARGH_SIZE);
 
                 if (failures > last_failures) {
-                button_get(true);
+                rb->button_get(true);
             }
                 last_failures = failures;
             hit ++;
@@ -1860,7 +1843,7 @@ static void test_make_argh(void){
 static void test_worm_argh_collision_in_moves(void) {
     int hit_count = 0;
     int i;
-    lcd_clear_display();
+    rb->lcd_clear_display();
     init_worm(&worms[0], 10, 20);
 
     arghx[0] = 20;
@@ -1875,12 +1858,12 @@ static void test_worm_argh_collision_in_moves(void) {
         if (worm_argh_collision_in_moves(&worms[0], 0, 5)){
             hit_count ++;
         }
-        snprintf(buf, sizeof buf, "in 5 moves hits: %d", hit_count);
-        lcd_putsxy(0, LCD_HEIGHT - 8, buf);
-        lcd_update();
+        rb->snprintf(buf, sizeof buf, "in 5 moves hits: %d", hit_count);
+        rb->lcd_putsxy(0, LCD_HEIGHT - 8, buf);
+        rb->lcd_update();
     }    
     if (hit_count != ARGH_SIZE + 5) {
-        button_get(true);
+        rb->button_get(true);
     }    
 }
 #endif /* DEBUG_WORMLET */
@@ -1888,14 +1871,18 @@ static void test_worm_argh_collision_in_moves(void) {
 extern bool use_old_rect;
 
 /**
- * Main entry point from the menu to start the game control.
+ * Main entry point
  */
-bool wormlet(void)
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 {
     bool worm_dead = false;
     int button;
     
-    lcd_setfont(FONT_SYSFIXED);
+    TEST_PLUGIN_API(api);
+    (void)(parameter);
+
+    rb = api;
+    rb->lcd_setfont(FONT_SYSFIXED);
 
 #ifdef DEBUG_WORMLET
     testline_in_rect();
@@ -1905,44 +1892,44 @@ bool wormlet(void)
     test_worm_argh_collision();
     test_specific_worm_collision();
 #endif 
-    lcd_setmargins(0,0);
 
     /* Setup screen */
     do {
         char buf[20];
-        lcd_clear_display();
+        char* ptr;
+        rb->lcd_clear_display();
 
         /* first line players */
-        snprintf(buf, sizeof buf, str(LANG_WORMLET_PLAYERS), players);
-        lcd_puts(0, 0, buf);
+        rb->snprintf(buf, sizeof buf, "%d Players    UP/DN", players);
+        rb->lcd_puts(0, 0, buf);
 
         /* second line worms */
-        snprintf(buf, sizeof buf, str(LANG_WORMLET_WORMS), worm_count);
-        lcd_puts(0, 1, buf);
+        rb->snprintf(buf, sizeof buf, "%d Worms        L/R", worm_count);
+        rb->lcd_puts(0, 1, buf);
 
         /* third line control */
         if (players > 1) {
             if (use_remote) {
-                snprintf(buf, sizeof buf, str(LANG_WORMLET_REMOTE_CTRL));
+                ptr = "Remote Control F1";
             } else {
-                snprintf(buf, sizeof buf, str(LANG_WORMLET_NO_REM_CTRL));
+                ptr = "No Rem. Control F1";
             }
         } else {
             if (players > 0) {
                 if (use_remote) {
-                    snprintf(buf, sizeof buf, str(LANG_WORMLET_2_KEY_CTRL));
+                    ptr = "2 Key Control   F1";
                 } else {
-                    snprintf(buf, sizeof buf, str(LANG_WORMLET_4_KEY_CTRL));
+                    ptr = "4 Key Control   F1";
                 }
             } else {
-                snprintf(buf, sizeof buf, str(LANG_WORMLET_NO_CONTROL));
+                ptr = "Out Of Control";
             }
         }
-        lcd_puts(0, 2, buf);
-        lcd_update();
+        rb->lcd_puts(0, 2, ptr);
+        rb->lcd_update();
 
         /* user selection */
-        button = button_get(true);
+        button = rb->button_get(true);
         switch (button) {
             case BUTTON_UP:
                 if (players < 3) {
@@ -1981,14 +1968,13 @@ bool wormlet(void)
                 break;
 
             case SYS_USB_CONNECTED:
-                usb_screen();
-                lcd_setfont(FONT_UI);
-                return true;
+                rb->usb_screen();
+                return PLUGIN_USB_CONNECTED;
         }
     } while (button != BUTTON_PLAY && 
              button != BUTTON_OFF  && button != BUTTON_ON);
 
-    lcd_clear_display();
+    rb->lcd_clear_display();
     /* end of setup */
 
     do {    
@@ -2008,7 +1994,7 @@ bool wormlet(void)
            via BUTTON_OFF -> no need to wait for buttons. */
         if (worm_dead) {
             do {
-                button = button_get(true);
+                button = rb->button_get(true);
             }
             /* BUTTON_ON -> start new game */
             /* BUTTON_OFF -> back to game menu */
@@ -2017,20 +2003,7 @@ bool wormlet(void)
     }
     while (button != BUTTON_OFF);
 
-    lcd_setfont(FONT_UI);
-
-    return false;
+    return PLUGIN_OK;
 }
 
-
-#endif /* USE_GAMES */
-
-
-
-
-
-
-
-
-
-
+#endif
diff --git a/apps/recorder/icons.c b/apps/recorder/icons.c
index af0352094f..25d34d7591 100644
--- a/apps/recorder/icons.c
+++ b/apps/recorder/icons.c
@@ -64,6 +64,7 @@ unsigned char bitmap_icons_6x8[LastIcon][6] =
     { 0x3e, 0x2a, 0x3e, 0x2a, 0x2a, 0x3e }, /* Language file */
     { 0x55, 0x55, 0x55, 0x55, 0x55, 0x55 }, /* Text file */
     { 0x4e, 0x51, 0x51, 0x40, 0x55, 0x55 }, /* Config file */
+    { 0x0a, 0x0a, 0x5f, 0x4e, 0x24, 0x18 }, /* Plugin file */
 };
 
 unsigned char bitmap_icons_7x8[][7] =
diff --git a/apps/recorder/icons.h b/apps/recorder/icons.h
index a7858cd0ae..40418468f3 100644
--- a/apps/recorder/icons.h
+++ b/apps/recorder/icons.h
@@ -29,6 +29,7 @@ enum icons_6x8 {
     Folder,     Directory, Playlist,          Repeat,
     Selected,   Cursor,    Wps,               Mod_Ajz, 
     Font,       Language,  Text,              Config,
+    Plugin,
     LastIcon
 };
 
diff --git a/apps/recorder/sokoban.c b/apps/recorder/sokoban.c
deleted file mode 100644
index d28e32f430..0000000000
--- a/apps/recorder/sokoban.c
+++ /dev/null
@@ -1,891 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2002 Eric Linenberg
- * February 2003: Robert Hak performs a cleanup/rewrite/feature addition.
- *                Eric smiles.  Bjorn cries.  Linus say 'huh?'.
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-#include "config.h"
-#include "options.h"
-
-#ifdef USE_GAMES
-
-#include <sprintf.h>
-#include "ctype.h"
-#include "sokoban.h"
-#include "lcd.h"
-#include "button.h"
-#include "kernel.h"
-#include "menu.h"
-#include "screens.h"
-#include "font.h"
-#include "file.h"
-#include "misc.h"
-#include "debug.h"
-
-#ifdef SIMULATOR
-#include <stdio.h>
-#endif
-#include <string.h>
-#include "lang.h"
-#include "sprintf.h"
-
-#define SOKOBAN_TITLE       "Sokoban"
-#define SOKOBAN_TITLE_FONT  2
-
-#define LEVELS_FILE         "/.rockbox/sokoban/levels.txt"
-
-#define ROWS                16
-#define COLS                20
-#define MAX_UNDOS           5
-
-#define SOKOBAN_LEVEL_SIZE (ROWS*COLS)
-
-static void init_undo(void);
-static void undo(void);
-static void add_undo(int button);
-
-static int get_level(char *level, int level_size);
-static int get_level_count(void);
-static int load_level(void);
-static void draw_level(void);
-
-static void init_boards(void);
-static void update_screen(void);
-static bool sokoban_loop(void);
-
-/* The Location, Undo and LevelInfo structs are OO-flavored.  
- * (oooh!-flavored as Schnueff puts it.)  It makes more you have to know, 
- * but the overall data layout becomes more manageable. */
-
-/* We use the same three values in 2 structs.  Makeing them a struct
- * hopefully ensures that if you change things in one, the other changes
- * as well. */
-struct LevelInfo {
-    short level;
-    short moves;
-    short boxes_to_go;
-};
-
-/* What a given location on the board looks like at a given time */
-struct Location {
-    char spot;
-    short row;
-    short col;
-};
-
-/* A single level of undo.  Each undo move can affect upto,
- * but not more then, 3 spots on the board */
-struct Undo {
-    struct LevelInfo level;
-    struct Location location[3];
-};
-
-/* Our full undo history */
-static struct UndoInfo {
-    short count;    /* How many undos are there in history */
-    short current;  /* Which history is the current undo */
-    struct Undo history[MAX_UNDOS];
-} undo_info;
-
-/* Our playing board */
-static struct BoardInfo {
-    char board[ROWS][COLS];
-    struct LevelInfo level;
-    struct Location player;
-    int max_level;               /* How many levels do we have? */
-    int level_offset;            /* Where in the level file is this level */
-    int loaded_level;            /* Which level is in memory */
-} current_info;
-
-
-static void init_undo(void)
-{
-    undo_info.count = 0;
-    undo_info.current = 0;
-}
-
-static void undo(void)
-{
-    struct Undo *undo;
-    int i = 0;
-    short row, col;
-
-    if (undo_info.count == 0)
-        return;
-
-    /* Update board info */
-    undo = &undo_info.history[undo_info.current];
-    
-    current_info.level = undo->level;
-    current_info.player = undo->location[0];
-
-    row = undo->location[0].row;
-    col = undo->location[0].col;
-    current_info.board[row][col] = '@';
-
-    /* Update the two other possible spots */
-    for (i = 1; i < 3; i++) {
-        if (undo->location[i].spot != '\0') {
-            row = undo->location[i].row;
-            col = undo->location[i].col;
-            current_info.board[row][col] = undo->location[i].spot;
-            undo->location[i].spot = '\0';
-        }
-    }
-
-    /* Remove this undo from the list */
-    if (undo_info.current == 0) {
-        if (undo_info.count > 1)
-            undo_info.current = MAX_UNDOS - 1;
-    } else {
-        undo_info.current--;
-    }
-    
-    undo_info.count--;
-
-    return;
-}
-
-static void add_undo(int button)
-{
-    struct Undo *undo;
-    int row, col, i;
-    bool storable;
-
-    if ((button != BUTTON_LEFT) && (button != BUTTON_RIGHT) &&
-        (button != BUTTON_UP) && (button != BUTTON_DOWN))
-        return;
-
-    if (undo_info.count != 0) {
-        if (undo_info.current < (MAX_UNDOS - 1)) 
-            undo_info.current++;
-        else
-            undo_info.current = 0;
-    }
-
-    /* Make what follows more readable */
-    undo = &undo_info.history[undo_info.current];
-
-    /* Store our level info */
-    undo->level = current_info.level;
-
-    /* Store our player info */
-    undo->location[0] = current_info.player;
-
-    /* Now we need to store upto 2 blocks that may be affected.  
-     * If player.spot is NULL, then there is no info stored 
-     * for that block */
-
-    row = current_info.player.row;
-    col = current_info.player.col;
-
-    /* This must stay as _1_ because the first block (0) is the player */
-    for (i = 1; i < 3; i++) {
-        storable = true;
-
-        switch (button) {
-        case BUTTON_LEFT:
-            col--;
-            if (col < 0) 
-                storable = false;
-            break;
-
-        case BUTTON_RIGHT:
-            col++;
-            if (col >= COLS) 
-                storable = false;
-            break;
-
-        case BUTTON_UP:
-            row--;
-            if (row < 0)
-                storable = false;
-            break;
-            
-        case BUTTON_DOWN:
-            row++;
-            if (row >= ROWS)
-                storable = false;
-            break;
-
-        default:
-            return;
-        }
-
-        if (storable) {
-            undo->location[i].col = col;
-            undo->location[i].row = row;
-            undo->location[i].spot = current_info.board[row][col];
-        } else {
-            undo->location[i].spot = '\0';
-        }
-    }
-
-    if (undo_info.count < MAX_UNDOS) 
-        undo_info.count++;
-}
-
-static void init_boards(void)
-{
-    current_info.level.level = 0;
-    current_info.level.moves = 0;
-    current_info.level.boxes_to_go = 0;
-    current_info.player.row = 0;
-    current_info.player.col = 0;
-    current_info.player.spot = ' ';
-    current_info.max_level = 0;
-    current_info.level_offset = 0;
-    current_info.loaded_level = 0;
-
-    init_undo();
-}
-
-static int get_level_count(void) 
-{
-    int fd = 0;
-    int len, lastlen = 0;
-    char buffer[COLS + 3]; /* COLS plus CR/LF and \0 */
-
-    if ((fd = open(LEVELS_FILE, O_RDONLY)) < 0) {
-        splash(0, 0, true, "Unable to open %s", LEVELS_FILE);
-        return -1;
-    }
-
-    while(1) {
-        len = read_line(fd, buffer, sizeof(buffer));
-        if(len <= 0)
-            break;
-
-        /* Two short lines in a row means new level */
-        if(len < 3 && lastlen < 3)
-            current_info.max_level++;
-
-        lastlen = len;
-    }
-
-    DEBUGF("%d levels loaded\n", current_info.max_level);
-    close(fd);
-    return 0;
-}
-
-static int get_level(char *level, int level_size) 
-{
-    int fd = 0, i = 0;
-    int nread = 0;
-    int count = 0;
-    int len, lastlen = 0;
-    int level_ct = 1;
-    unsigned char buffer[SOKOBAN_LEVEL_SIZE * 2];
-    bool level_found = false;
-
-    /* open file */
-    if ((fd = open(LEVELS_FILE, O_RDONLY)) < 0)
-        return -1;
-
-    /* Lets not reparse the full file if we can avoid it */
-    if (current_info.loaded_level < current_info.level.level) {
-        lseek(fd, current_info.level_offset, SEEK_SET);
-        level_ct = current_info.loaded_level;
-    }
-
-    if(current_info.level.level > 1) {
-        while(!level_found) {
-            len = read_line(fd, buffer, SOKOBAN_LEVEL_SIZE);
-            if(len <= 0) {
-                close(fd);
-                return -1;
-            }
-            
-            /* Two short lines in a row means new level */
-            if(len < 3 && lastlen < 3) {
-                level_ct++;
-                if(level_ct == current_info.level.level)
-                    level_found = true;
-            }
-            lastlen = len;
-        }
-    }
-
-    /* Remember the current offset */
-    current_info.level_offset = lseek(fd, 0, SEEK_CUR);
-    
-    /* read a full buffer chunk from here */
-    nread = read(fd, buffer, sizeof(buffer)-1);
-    if (nread < 0)
-        return -1;
-    buffer[nread] = 0;
-    
-    close(fd);
-    
-    /* If we read less then a level, error */
-    if (nread < level_size)
-        return -1;
-    
-    /* Load our new level */
-    for(i=0, count=0; (count < nread) && (i<level_size);) {
-        if (buffer[count] != '\n' && buffer[count] != '\r')
-            level[i++] = buffer[count];
-        count++;
-    }
-    level[i] = 0;
-
-    current_info.loaded_level = current_info.level.level;
-    return 0;
-}
-
-/* return non-zero on error */
-static int load_level(void)
-{
-    short c = 0;
-    short r = 0;
-    short i = 0;
-    char level[ROWS*COLS+1];
-    int x = 0;
-
-    current_info.player.spot=' ';
-    current_info.level.boxes_to_go = 0;
-    current_info.level.moves = 0;
-
-    if (get_level(level, sizeof(level)) != 0)
-        return -1;
-
-    i = 0;
-    for (r = 0; r < ROWS; r++) {
-        x++;
-        for (c = 0; c < COLS; c++, i++) {
-            current_info.board[r][c] = level[i];
-            
-            if (current_info.board[r][c] == '.')
-                current_info.level.boxes_to_go++;
-
-            else if (current_info.board[r][c] == '@') {
-                current_info.player.row = r;
-                current_info.player.col = c;
-            }
-        }
-    }
-
-    return 0;
-}
-
-static void update_screen(void) 
-{
-    short b = 0, c = 0;
-    short rows = 0, cols = 0;
-    char s[25];
-    
-    short magnify = 4;
-
-    /* load the board to the screen */
-    for (rows=0 ; rows < ROWS ; rows++) {
-        for (cols = 0 ; cols < COLS ; cols++) {
-            c = cols * magnify;
-            b = rows * magnify;
-
-            switch(current_info.board[rows][cols]) {
-            case 'X': /* black space */
-                lcd_drawrect(c, b, magnify, magnify);
-                lcd_drawrect(c+1, b+1, 2, 2);
-                break;
-                
-            case '#': /* this is a wall */
-                lcd_drawpixel(c, b);
-                lcd_drawpixel(c+2, b);
-                lcd_drawpixel(c+1, b+1);
-                lcd_drawpixel(c+3, b+1);
-                lcd_drawpixel(c, b+2);
-                lcd_drawpixel(c+2, b+2);
-                lcd_drawpixel(c+1, b+3);
-                lcd_drawpixel(c+3, b+3);
-                break;
-
-            case '.': /* this is a home location */
-                lcd_drawrect(c+1, b+1, 2, 2);
-                break;
-
-            case '$': /* this is a box */
-                lcd_drawrect(c, b, magnify, magnify);
-                break;
-
-            case '@': /* this is you */
-                lcd_drawline(c+1, b, c+2, b);
-                lcd_drawline(c, b+1, c+3, b+1);
-                lcd_drawline(c+1, b+2, c+2, b+2);
-
-                lcd_drawpixel(c, b+3);
-                lcd_drawpixel(c+3, b+3);
-                break;
-
-            case '%': /* this is a box on a home spot */ 
-                lcd_drawrect(c, b, magnify, magnify);
-                lcd_drawrect(c+1, b+1, 2, 2);
-                break;
-            }
-        }
-    }
-    
-
-    snprintf(s, sizeof(s), "%d", current_info.level.level);
-    lcd_putsxy(86, 22, s);
-    snprintf(s, sizeof(s), "%d", current_info.level.moves);
-    lcd_putsxy(86, 54, s);
-
-    lcd_drawrect(80,0,32,32);
-    lcd_drawrect(80,32,32,64);
-    lcd_putsxy(81, 10, str(LANG_SOKOBAN_LEVEL));
-    lcd_putsxy(81, 42, str(LANG_SOKOBAN_MOVE));
-
-    /* print out the screen */
-    lcd_update();
-}
-
-static void draw_level(void)
-{
-    load_level();
-    lcd_clear_display();
-    update_screen();
-}
-
-static bool sokoban_loop(void)
-{
-    char new_spot;
-    bool moved = true;
-    int i = 0, button = 0;
-    short r = 0, c = 0;
-
-    current_info.level.level = 1;
-
-    load_level();
-    update_screen(); 
-
-    while (1) {
-        moved = true;
-
-        r = current_info.player.row;
-        c = current_info.player.col;
-
-        button = button_get(true);
-
-        add_undo(button);
-
-        switch(button) 
-        {
-        case BUTTON_OFF:
-            /* get out of here */
-            return false; 
-
-        case BUTTON_ON:
-        case BUTTON_ON | BUTTON_REPEAT:
-            /* this is UNDO */
-            undo();
-            lcd_clear_display();
-            update_screen(); 
-            moved = false;
-            break;
-
-        case BUTTON_F3:
-        case BUTTON_F3 | BUTTON_REPEAT:
-            /* increase level */
-            init_undo();
-            current_info.level.boxes_to_go=0;
-            moved = true;
-            break;
-
-        case BUTTON_F1:
-        case BUTTON_F1 | BUTTON_REPEAT:
-            /* previous level */
-            init_undo();
-            if (current_info.level.level > 1)
-                current_info.level.level--;
-
-            draw_level();
-            moved = false;
-            break;
-
-        case BUTTON_F2:
-        case BUTTON_F2 | BUTTON_REPEAT:
-            /* same level */
-            init_undo();
-            draw_level();
-            moved = false;
-            break;
-
-        case BUTTON_LEFT:
-            switch(current_info.board[r][c-1]) 
-            {
-            case ' ': /* if it is a blank spot */
-            case '.': /* if it is a home spot */
-                new_spot = current_info.board[r][c-1];
-                current_info.board[r][c-1] = '@';
-                current_info.board[r][c] = current_info.player.spot;
-                current_info.player.spot = new_spot;
-                break;
-
-            case '$':
-                switch(current_info.board[r][c-2])
-                {
-                case ' ': /* going from blank to blank */
-                    current_info.board[r][c-2] = current_info.board[r][c-1];
-                    current_info.board[r][c-1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = ' ';
-                    break;
-
-                case '.': /* going from a blank to home */
-                    current_info.board[r][c-2] = '%';
-                    current_info.board[r][c-1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = ' ';
-                    current_info.level.boxes_to_go--;
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            case '%':
-                switch(current_info.board[r][c-2]) {
-                case ' ': /* we are going from a home to a blank */
-                    current_info.board[r][c-2] = '$';
-                    current_info.board[r][c-1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = '.';
-                    current_info.level.boxes_to_go++;
-                    break;
-
-                case '.': /* if we are going from a home to home */
-                    current_info.board[r][c-2] = '%';
-                    current_info.board[r][c-1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = '.';
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            default:
-                moved = false;
-                break;
-            }
-
-            if (moved)
-                current_info.player.col--;
-            break;
-
-        case BUTTON_RIGHT: /* if it is a blank spot */
-            switch(current_info.board[r][c+1]) {
-            case ' ':
-            case '.': /* if it is a home spot */
-                new_spot = current_info.board[r][c+1];
-                current_info.board[r][c+1] = '@';
-                current_info.board[r][c] = current_info.player.spot;
-                current_info.player.spot = new_spot;
-                break;
-
-            case '$': 
-                switch(current_info.board[r][c+2]) {
-                case ' ': /* going from blank to blank */
-                    current_info.board[r][c+2] = current_info.board[r][c+1];
-                    current_info.board[r][c+1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = ' ';
-                    break;
-
-                case '.': /* going from a blank to home */
-                    current_info.board[r][c+2] = '%';
-                    current_info.board[r][c+1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = ' ';
-                    current_info.level.boxes_to_go--;
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            case '%':
-                switch(current_info.board[r][c+2]) {
-                case ' ': /* going from a home to a blank */
-                    current_info.board[r][c+2] = '$';
-                    current_info.board[r][c+1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = '.';
-                    current_info.level.boxes_to_go++;
-                    break;
-
-                case '.':
-                    current_info.board[r][c+2] = '%';
-                    current_info.board[r][c+1] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = '.';
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            default:
-                moved = false;
-                break;
-            }
-
-            if (moved)
-                current_info.player.col++;
-            break;
-
-        case BUTTON_UP:
-            switch(current_info.board[r-1][c]) {
-            case ' ': /* if it is a blank spot */
-            case '.': /* if it is a home spot */
-                new_spot = current_info.board[r-1][c];
-                current_info.board[r-1][c] = '@';
-                current_info.board[r][c] = current_info.player.spot;
-                current_info.player.spot = new_spot;
-                break;
-
-            case '$':
-                switch(current_info.board[r-2][c]) {
-                case ' ': /* going from blank to blank */
-                    current_info.board[r-2][c] = current_info.board[r-1][c];
-                    current_info.board[r-1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = ' ';
-                    break;
-
-                case '.': /* going from a blank to home */
-                    current_info.board[r-2][c] = '%';
-                    current_info.board[r-1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = ' ';
-                    current_info.level.boxes_to_go--;
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            case '%':
-                switch(current_info.board[r-2][c]) {
-                case ' ': /* we are going from a home to a blank */
-                    current_info.board[r-2][c] = '$';
-                    current_info.board[r-1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = '.';
-                    current_info.level.boxes_to_go++;
-                    break;
-
-                case '.': /* if we are going from a home to home */
-                    current_info.board[r-2][c] = '%';
-                    current_info.board[r-1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = '.';
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            default:
-                moved = false;
-                break;
-            }
-
-            if (moved)
-                current_info.player.row--;
-            break;
-
-        case BUTTON_DOWN:
-            switch(current_info.board[r+1][c]) {
-            case ' ': /* if it is a blank spot */
-            case '.': /* if it is a home spot */
-                new_spot = current_info.board[r+1][c];
-                current_info.board[r+1][c] = '@';
-                current_info.board[r][c] = current_info.player.spot;
-                current_info.player.spot = new_spot;
-                break;
-
-            case '$':
-                switch(current_info.board[r+2][c]) {
-                case ' ': /* going from blank to blank */
-                    current_info.board[r+2][c] = current_info.board[r+1][c];
-                    current_info.board[r+1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = ' ';
-                    break;
-
-                case '.': /* going from a blank to home */
-                    current_info.board[r+2][c] = '%';
-                    current_info.board[r+1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = ' ';
-                    current_info.level.boxes_to_go--;
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            case '%':
-                switch(current_info.board[r+2][c]) {
-                case ' ': /* going from a home to a blank */
-                    current_info.board[r+2][c] = '$';
-                    current_info.board[r+1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot;
-                    current_info.player.spot = '.';
-                    current_info.level.boxes_to_go++;
-                    break;
-
-                case '.': /* going from a home to home */
-                    current_info.board[r+2][c] = '%';
-                    current_info.board[r+1][c] = current_info.board[r][c];
-                    current_info.board[r][c] = current_info.player.spot; 
-                    current_info.player.spot = '.';
-                    break;
-
-                default:
-                    moved = false;
-                    break;
-                }
-                break;
-
-            default:
-                moved = false;
-                break;
-            }
-
-            if (moved)
-                current_info.player.row++;
-            break;
-
-        case SYS_USB_CONNECTED:
-            usb_screen();
-            return true;
-
-        default:
-            moved = false;
-            break;
-        }
-        
-        if (moved) {
-            current_info.level.moves++;
-            lcd_clear_display();
-            update_screen(); 
-        }
-
-        /* We have completed this level */
-        if (current_info.level.boxes_to_go == 0) {
-            current_info.level.level++;
-
-            /* clear undo stats */
-            init_undo();
-
-            lcd_clear_display();
-			
-            if (current_info.level.level > current_info.max_level) {
-                lcd_putsxy(10, 20, str(LANG_SOKOBAN_WIN));
-
-                for (i = 0; i < 30000 ; i++) {
-                    lcd_invertrect(0, 0, 111, 63);
-                    lcd_update();
-
-                    button = button_get(false);
-                    if (button && ((button & BUTTON_REL) != BUTTON_REL))
-                        break;
-                }
-
-                return false;
-            }
-
-            load_level();
-            update_screen();
-        }
-
-    } /* end while */
-
-    return false;
-}
-
-
-bool sokoban(void)
-{
-    bool result;
-    int w, h;
-    int len;
-
-    lcd_setfont(FONT_SYSFIXED);
-
-    lcd_getstringsize(SOKOBAN_TITLE, &w, &h);
-
-    /* Get horizontel centering for text */
-    len = w;
-    if (len%2 != 0)
-        len =((len+1)/2)+(w/2);
-    else
-        len /= 2;
-
-    if (h%2 != 0)
-        h = (h/2)+1;
-    else
-        h /= 2;
-
-    lcd_clear_display();
-    lcd_putsxy(LCD_WIDTH/2-len,(LCD_HEIGHT/2)-h, SOKOBAN_TITLE);
-
-    lcd_update();
-    sleep(HZ*2);
-
-    lcd_clear_display();
-
-    lcd_putsxy(3,  6, str(LANG_SOKOBAN_QUIT));
-    lcd_putsxy(3, 16, str(LANG_SOKOBAN_ON));
-    lcd_putsxy(3, 26, str(LANG_SOKOBAN_F1));
-    lcd_putsxy(3, 36, str(LANG_SOKOBAN_F2));
-    lcd_putsxy(3, 46, str(LANG_SOKOBAN_F3));
-
-    lcd_update();
-    sleep(HZ*2);
-    lcd_clear_display();
-
-    init_boards();
-
-    if (get_level_count() != 0) 
-        return false;
-
-    result = sokoban_loop();
-
-    lcd_setfont(FONT_UI);
-
-    return result;
-}
-
-#endif
diff --git a/apps/recorder/sokoban.h b/apps/recorder/sokoban.h
deleted file mode 100644
index f4f8fdd24f..0000000000
--- a/apps/recorder/sokoban.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2002 Robert E. Hak
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-#ifndef __SOKOBAN__
-#define __SOKOBAN__
-
-#include "menu.h"
-
-bool sokoban(void);
-
-#endif /*__SOKOBAN__ */
-
diff --git a/apps/recorder/tetris.c b/apps/recorder/tetris.c
deleted file mode 100644
index 6302e40109..0000000000
--- a/apps/recorder/tetris.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 1999 Mattis Wadman (nappe@sudac.org)
- *
- * Heavily modified for embedded use by Björn Stenberg (bjorn@haxx.se)
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-#include "config.h"
-#include "options.h"
-
-#ifdef USE_GAMES
-
-#include <stdbool.h>
-#include <string.h>
-#include "lcd.h"
-#include "button.h"
-#include "kernel.h"
-#include "menu.h"
-#include "screens.h"
-#include "font.h"
-
-#ifdef SIMULATOR
-#include <stdio.h>
-#endif
-#include "sprintf.h"
-#include "lang.h"
-#define TETRIS_TITLE       "Tetris!"
-#define TETRIS_TITLE_FONT  1
-#define TETRIS_TITLE_XLOC  43
-#define TETRIS_TITLE_YLOC  15
-
-static const int start_x = 5;
-static const int start_y = 5;
-static const int max_x = 4 * 17;
-static const int max_y = 3 * 10;
-static const short level_speeds[10] = {
-    1000, 900, 800, 700, 600, 500, 400, 300, 250, 200
-};
-static const int blocks = 7;
-static const int block_frames[7] = {1,2,2,2,4,4,4};
-
-static int current_x, current_y, current_f, current_b;
-static int level, score;
-static int next_b, next_f;
-static short lines;
-static char virtual[LCD_WIDTH * LCD_HEIGHT];
-
-/*
- block_data is built up the following way
-
- first array index specifies the block number
- second array index specifies the rotation of the block
- third array index specifies:
-     0: x-coordinates of pixels
-     1: y-coordinates of pixels
- fourth array index specifies the coordinate of a pixel
-
- each block consists of four pixels whose relative coordinates are given
- with block_data
-*/
-
-static const char block_data[7][4][2][4] =
-{
-    {
-        {{0,1,0,1},{0,0,1,1}}
-    },
-    {
-        {{0,1,1,2},{1,1,0,0}},
-        {{0,0,1,1},{0,1,1,2}}
-    },
-    {
-        {{0,1,1,2},{0,0,1,1}},
-        {{1,1,0,0},{0,1,1,2}}
-    },
-    {
-        {{1,1,1,1},{0,1,2,3}},
-        {{0,1,2,3},{2,2,2,2}}
-    },
-    {
-        {{1,1,1,2},{2,1,0,0}},
-        {{0,1,2,2},{1,1,1,2}},
-        {{0,1,1,1},{2,2,1,0}},
-        {{0,0,1,2},{0,1,1,1}}
-    },
-    {
-        {{0,1,1,1},{0,0,1,2}},
-        {{0,1,2,2},{1,1,1,0}},
-        {{1,1,1,2},{0,1,2,2}},
-        {{0,0,1,2},{2,1,1,1}}
-    },
-    {
-        {{1,0,1,2},{0,1,1,1}},
-        {{2,1,1,1},{1,0,1,2}},
-        {{1,0,1,2},{2,1,1,1}},
-        {{0,1,1,1},{1,0,1,2}}
-    }
-};
-
-static int t_rand(int range)
-{
-    return current_tick % range;
-}
-
-static void draw_frame(int fstart_x,int fstop_x,int fstart_y,int fstop_y)
-{
-    lcd_drawline(fstart_x, fstart_y, fstop_x, fstart_y);
-    lcd_drawline(fstart_x, fstop_y, fstop_x, fstop_y);
-
-    lcd_drawline(fstart_x, fstart_y, fstart_x, fstop_y);
-    lcd_drawline(fstop_x, fstart_y, fstop_x, fstop_y);
-
-    lcd_drawline(fstart_x - 1, fstart_y + 1, fstart_x - 1, fstop_y + 1);
-    lcd_drawline(fstart_x - 1, fstop_y + 1, fstop_x - 1, fstop_y + 1);
-}
-
-static void draw_block(int x, int y, int block, int frame, bool clear)
-{
-    int i, a, b;
-    for(i=0;i < 4;i++) {
-        if (clear)
-        {
-            for (a = 0; a < 3; a++)
-                for (b = 0; b < 4; b++)
-                    lcd_clearpixel(start_x + x + block_data[block][frame][1][i] * 4 - b,
-                                   start_y + y + block_data[block][frame][0][i] * 3 + a);
-        }
-        else
-        {
-            for (a = 0; a < 3; a++)
-                for (b = 0; b < 4; b++)
-                    lcd_drawpixel(start_x+x+block_data[block][frame][1][i] * 4 - b,
-                                  start_y+y+block_data[block][frame][0][i] * 3 + a);
-        }
-    }
-}
-
-static void to_virtual(void)
-{
-    int i, a, b;
-
-    for(i = 0; i < 4; i++)
-        for (a = 0; a < 3; a++)
-            for (b = 0; b < 4; b++)
-                *(virtual + 
-                (current_y + block_data[current_b][current_f][0][i] * 3 + a) * 
-                  max_x + current_x + block_data[current_b][current_f][1][i] * 
-                  4 - b) = current_b + 1;
-}
-
-static bool block_touch (int x, int y)
-{
-    int a,b;
-    for (a = 0; a < 4; a++)
-        for (b = 0; b < 3; b++)
-            if (*(virtual + (y + b) * max_x + (x - a)) != 0)
-                return true;
-    return false;
-}
-
-static bool gameover(void)
-{
-    int i;
-    int frame, block, y, x;
-
-    x = current_x;
-    y = current_y;
-    block = current_b;
-    frame = current_f;
-
-    for(i = 0; i < 4; i++){
-        /* Do we have blocks touching? */
-        if(block_touch(x + block_data[block][frame][1][i] * 4, 
-                       y + block_data[block][frame][0][i] * 3)) 
-        {
-            /* Are we at the top of the frame? */
-            if(x + block_data[block][frame][1][i] * 4 >= max_x - 16)
-            {
-                /* Game over ;) */
-                return true;
-            }
-        }
-    }
-    return false;
-}
-
-static bool valid_position(int x, int y, int block, int frame)
-{
-    int i;
-    for(i=0;i < 4;i++)
-        if ((y + block_data[block][frame][0][i] * 3 > max_y - 3) ||
-            (x + block_data[block][frame][1][i] * 4 > max_x - 4) ||
-            (y + block_data[block][frame][0][i] * 3 < 0) ||
-            (x + block_data[block][frame][1][i] * 4 < 4) ||
-            block_touch (x + block_data[block][frame][1][i] * 4, 
-                         y + block_data[block][frame][0][i] * 3))
-        {
-            return false;
-        }
-    return true;
-}
-
-static void from_virtual(void)
-{
-    int x,y;
-    for(y = 0; y < max_y; y++)
-        for(x = 1; x < max_x - 1; x++)
-            if(*(virtual + (y * max_x) + x) != 0)
-                lcd_drawpixel(start_x + x, start_y + y);
-            else
-                lcd_clearpixel(start_x + x, start_y + y);
-}
-
-static void move_block(int x,int y,int f)
-{
-    int last_frame = current_f;
-    if(f != 0)
-    {
-        current_f += f;
-        if(current_f > block_frames[current_b]-1)
-            current_f = 0;
-        if(current_f < 0)
-            current_f = block_frames[current_b]-1;
-    }
-
-    if(valid_position(current_x + x, current_y + y, current_b, current_f))
-    {
-        draw_block(current_x,current_y,current_b,last_frame,true);
-        current_x += x;
-        current_y += y;
-        draw_block(current_x,current_y,current_b,current_f,false);
-        lcd_update();
-    }
-    else
-        current_f = last_frame;
-}
-
-static void new_block(void)
-{
-    current_b = next_b;
-    current_f = next_f;
-    current_x = max_x - 16;
-    current_y = (int)12;
-    next_b = t_rand(blocks);
-    next_f = t_rand(block_frames[next_b]);
-
-    lcd_drawline (max_x + 7, start_y - 1, max_x + 29, start_y - 1);
-    lcd_drawline (max_x + 29, start_y, max_x + 29, start_y + 14);
-    lcd_drawline (max_x + 29, start_y + 14, max_x + 7, start_y + 14);
-    lcd_drawline (max_x + 7, start_y + 14, max_x + 7, start_y - 1);
-    lcd_drawline (max_x + 6, start_y + 15, max_x + 6, start_y);
-    lcd_drawline (max_x + 6, start_y + 15, max_x + 28, start_y + 15);
-
-    draw_block(max_x + 9, start_y - 4, current_b, current_f, true);
-    draw_block(max_x + 9, start_y - 4, next_b, next_f, false);
-    if(!valid_position(current_x, current_y, current_b, current_f))
-    {
-        draw_block(current_x, current_y, current_b, current_f, false);
-        lcd_update();
-    }
-    else
-        draw_block(current_x, current_y, current_b, current_f, false);
-}
-
-static int check_lines(void)
-{
-    int x,y,i,j;
-    bool line;
-    int lines = 0;
-    for(x = 0; x < max_x; x++)
-    {
-        line = true;
-        for(y = 0; y < max_y; y++)
-        {
-            if(*(virtual + y * max_x + x) == 0)
-            {
-                line = false;
-                break;
-            }
-        }
-
-        if(line)
-        {
-            lines++;
-            /* move rows down */
-            for(i = x; i < max_x - 1; i++)
-                for (j = 0; j < max_y; j++)
-		            *(virtual + j * max_x + i)=*(virtual + j * max_x + (i + 1));
-
-            x--; /* re-check this line */
-        }
-    }
-
-    return lines / 4;
-}
-
-static void move_down(void)
-{
-    int l;
-    char s[25];
-
-    if(!valid_position(current_x - 4, current_y, current_b, current_f))
-    {
-        to_virtual();
-        l = check_lines();
-        if(l)
-        {
-            lines += l;
-            level = (int)lines/10;
-            if(level > 9)
-                level = 9;
-            from_virtual();
-            score += l*l;
-        }
-
-        snprintf (s, sizeof(s), "%d %s %d", lines, 
-                  str(LANG_TETRIS_LEVEL), level);
-        lcd_putsxy (2, 42, s);
-
-        new_block();
-        move_block(0,0,0);
-    }
-    else
-        move_block(-4,0,0);
-} 
-
-static bool game_loop(void)
-{
-    while(1)
-    {
-        int count = 0;
-        while(count * 300 < level_speeds[level])
-        {
-            switch(button_get_w_tmo(HZ/10))
-            {
-                case BUTTON_OFF:
-                    return false;
-                
-                case BUTTON_UP:
-                case BUTTON_UP | BUTTON_REPEAT:
-                    move_block(0,-3,0);
-                    break;
-                
-                case BUTTON_DOWN:
-                case BUTTON_DOWN | BUTTON_REPEAT:
-                    move_block(0,3,0);
-                    break;
-                
-                case BUTTON_RIGHT:
-                case BUTTON_RIGHT | BUTTON_REPEAT:
-                    move_block(0,0,1);
-                    break;
-                
-                case BUTTON_LEFT:
-                case BUTTON_LEFT | BUTTON_REPEAT:
-                    move_down();
-                    break;
-
-                case SYS_USB_CONNECTED:
-                    usb_screen();
-                    return true;
-            }
-            
-            count++;
-        }
-        
-        if(gameover())
-        {
-            lcd_clearrect(0, 52, LCD_WIDTH, LCD_HEIGHT - 52);
-            lcd_putsxy (2, 52, str(LANG_TETRIS_LOSE));
-            lcd_update();
-            sleep(HZ * 3);
-            return false;
-        }
-
-        move_down();
-    }
-
-    return false;
-}
-
-static void init_tetris(void)
-{
-    memset(&virtual, 0, sizeof(virtual));
-
-    current_x = 0;
-    current_y = 0;
-    current_f = 0;
-    current_b = 0;
-    level = 0;
-    lines = 0;
-    score = 0;
-    next_b = 0;
-    next_f = 0;
-}
-
-bool tetris(void)
-{
-    char buf[20];
-    bool val;
-
-    /* Lets use the default font */
-    lcd_setfont(FONT_SYSFIXED);
-
-    init_tetris();
-
-    draw_frame(start_x, start_x + max_x - 1, start_y - 1, start_y + max_y);
-    snprintf(buf, sizeof(buf), "0 %s 0", str(LANG_TETRIS_LEVEL));
-    lcd_putsxy (2, 42, buf);
-    lcd_update();
-
-    next_b = t_rand(blocks);
-    next_f = t_rand(block_frames[next_b]);
-    new_block();
-    val = game_loop();
-
-    lcd_setfont(FONT_UI);
-
-    return val;
-}
-
-#endif
-
-
-
diff --git a/apps/recorder/wormlet.h b/apps/recorder/wormlet.h
deleted file mode 100644
index 0aeea3cc77..0000000000
--- a/apps/recorder/wormlet.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2002 Philipp Pertermann
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-
-#ifndef __WORMLET__
-#define __WORMLET__
-
-#include "menu.h"
-
-bool wormlet(void);
-
-#endif /*__WORMLET__ */
-
diff --git a/apps/screens.c b/apps/screens.c
index d12a93a4d4..6055be3a2d 100644
--- a/apps/screens.c
+++ b/apps/screens.c
@@ -31,6 +31,7 @@
 #include "status.h"
 #include "playlist.h"
 #include "sprintf.h"
+#include "kernel.h"
 
 #ifdef HAVE_LCD_BITMAP
 #define BMPHEIGHT_usb_logo 32
diff --git a/apps/tree.c b/apps/tree.c
index 9935d8263d..e61fdc50cb 100644
--- a/apps/tree.c
+++ b/apps/tree.c
@@ -46,12 +46,12 @@
 #include "rolo.h"
 #include "icons.h"
 #include "lang.h"
-#include "viewer.h"
 #include "language.h"
 #include "screens.h"
 #include "keyboard.h"
 #include "onplay.h"
 #include "buffer.h"
+#include "plugin.h"
 
 #ifdef HAVE_LCD_BITMAP
 #include "widgets.h"
@@ -318,6 +318,8 @@ static int showdir(char *path, int start)
                 else if (!strcasecmp(&entry->d_name[len-4], ".mod"))
 #endif
                     dptr->attr |= TREE_ATTR_MOD;
+                else if (!strcasecmp(&entry->d_name[len-5], ".rock"))
+                    dptr->attr |= TREE_ATTR_ROCK;
             }
 
             /* filter out all non-playlist files */
@@ -468,6 +470,10 @@ static int showdir(char *path, int start)
                 icon_type = Mod_Ajz;
                 break;
 
+            case TREE_ATTR_ROCK:
+                icon_type = Plugin;
+                break;
+
 #ifdef HAVE_LCD_BITMAP
             case TREE_ATTR_FONT:
                 icon_type = Font;
@@ -962,7 +968,7 @@ bool dirbrowse(char *root)
                             break;
 
                         case TREE_ATTR_TXT:
-                            viewer_run(buf);
+                            plugin_load("/.rockbox/rocks/viewer.rock",buf);
                             restore = true;
                             break;
 
@@ -998,6 +1004,14 @@ bool dirbrowse(char *root)
                             rolo_load(buf);
                             break;
 #endif
+
+                            /* plugin file */
+                        case TREE_ATTR_ROCK:
+                            if (plugin_load(buf,NULL) == PLUGIN_USB_CONNECTED)
+                                reload_root = true;
+                            else
+                                restore = true;
+                            break;
                     }
 
                     if ( play ) {
@@ -1194,6 +1208,7 @@ bool dirbrowse(char *root)
             /* the sub-screen might've ruined the margins */
             lcd_setmargins(MARGIN_X,MARGIN_Y); /* leave room for cursor and
                                                   icon */
+            lcd_setfont(FONT_UI);
 #endif
             numentries = showdir(currdir, dirstart);
             update_all = true;
diff --git a/apps/tree.h b/apps/tree.h
index eb0aa8b98a..aa8f2127f3 100644
--- a/apps/tree.h
+++ b/apps/tree.h
@@ -30,6 +30,7 @@
 #define TREE_ATTR_TXT 0x500 /* text file */
 #define TREE_ATTR_FONT 0x800 /* font file */
 #define TREE_ATTR_LNG  0x1000 /* binary lang file */
+#define TREE_ATTR_ROCK 0x2000 /* binary rockbox plugin */
 #define TREE_ATTR_MASK 0xffd0 /* which bits tree.c uses (above + DIR) */
 
 void tree_init(void);
diff --git a/apps/viewer.h b/apps/viewer.h
deleted file mode 100644
index ed9f64ca49..0000000000
--- a/apps/viewer.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/***************************************************************************
- *             __________               __   ___.
- *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
- *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
- *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
- *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
- *                     \/            \/     \/    \/            \/
- * $Id$
- *
- * Copyright (C) 2002 Jerome Kuptz
- *
- * All files in this archive are subject to the GNU General Public License.
- * See the file COPYING in the source tree root for full license agreement.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ****************************************************************************/
-#ifndef _VIEWER_H
-#define _VIEWER_H
-
-bool viewer_run(char* file);
-
-#endif
diff --git a/firmware/app.lds b/firmware/app.lds
index 46a6ca70fb..34ab1adf66 100644
--- a/firmware/app.lds
+++ b/firmware/app.lds
@@ -2,15 +2,17 @@ ENTRY(start)
 OUTPUT_FORMAT(elf32-sh)
 INPUT(crt0.o)
 
+#define PLUGINSIZE 0x8000
+
 #ifdef DEBUG
-#define DRAMSIZE 0x1f0000
+#define DRAMSIZE 0x1f0000 - PLUGINSIZE
 #define ORIGADDR 0x09010000
-#define ENDADDR  0x09200000
+
 #else
-#define DRAMSIZE (MEMORYSIZE * 0x100000)
+#define DRAMSIZE (MEMORYSIZE * 0x100000) - PLUGINSIZE
 #define ORIGADDR 0x09000000
-#define ENDADDR  (ORIGADDR + DRAMSIZE)
 #endif
+#define ENDADDR  (ORIGADDR + DRAMSIZE)
 
 MEMORY
 {
@@ -91,6 +93,11 @@ SECTIONS
         _topramend = .;
     } > DRAM
 
+    .plugin ENDADDR:
+    {
+        _pluginbuf = .;
+    }
+
     .iram 0xf000000 : AT ( _iramcopy )
     {
         _iramstart = .;
diff --git a/firmware/drivers/lcd-player-charset.c b/firmware/drivers/lcd-player-charset.c
index 523158f49f..df4f3f016d 100644
--- a/firmware/drivers/lcd-player-charset.c
+++ b/firmware/drivers/lcd-player-charset.c
@@ -47,7 +47,7 @@ unsigned short new_lcd_rocklatin1_to_xlcd[] =
    RESERVED_CHAR, /* 0x01-0x17 reserved */
    RESERVED_CHAR, /* 0x01-0x17 reserved */
    RESERVED_CHAR, /* 0x01-0x17 reserved */
-   RESERVED_CHAR, /* 0x01-0x17 reserved */
+   0x217, /* 0x17 .. "plugin" icon */
    0x218, /* 0x18 .. "folder" icon */
    0x219, /* 0x19 .. "MOD/AJZ" icon (winlatin o (dote in the middle) */
    0x21a, /* 0x1a .. "language" icon (winlatin - (a bit longer minus sign) */
@@ -668,7 +668,7 @@ unsigned char extended_font_player[NO_EXTENDED_LCD_CHARS][8] = {
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 14 */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 15 */
   { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 16 */
-  { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* 17 */
+  { 0x04, 0x1e, 0x07, 0x1f, 0x05, 0x01, 0x06, 0x00}, /* 17 Plugin file icon */
   { 0x0c, 0x13, 0x11, 0x11, 0x11, 0x11, 0x1f, 0x00}, /* 18 Folder icon */
   { 0x1f, 0x11, 0x1b, 0x15, 0x1b, 0x11, 0x1f, 0x00}, /* 19 MOD/AJZ icon */
   { 0x00, 0x1f, 0x15, 0x1f, 0x15, 0x1f, 0x00, 0x00}, /* 1a Language icon */