Add a test for the NX console device

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4528 42af7a65-404d-4744-a932-0658087f49c3

9 files changed, 1473 insertions, 4 deletions

diff --git a/apps/ChangeLog.txt b/apps/ChangeLog.txt
index 1fd91b3a2..feb80dcb4 100755
--- a/apps/ChangeLog.txt
+++ b/apps/ChangeLog.txt
@@ -212,3 +212,4 @@
 	  built-int functions.
 	* vsn/hello:  Removed.  The modified apps/examples/hello is enough "Hello,
 	  World!"
+	* apps/examples/nxconsole:  Add a test of the NX console device.
diff --git a/apps/examples/Makefile b/apps/examples/Makefile
index 4cf2a700d..c1da00628 100644
--- a/apps/examples/Makefile
+++ b/apps/examples/Makefile
@@ -38,9 +38,9 @@
 # Sub-directories
 
 SUBDIRS = adc buttons can cdcacm composite dhcpd ftpc ftpd hello helloxx \
-	hidkbd igmp lcdrw mm mount nettest nsh null nx nxffs nxflat nxhello \
-	nximage nxlines nxtext ostest pashello pipe poll pwm qencoder rgmp \
-	romfs serloop telnetd thttpd tiff touchscreen udp uip usbserial \
+	hidkbd igmp lcdrw mm mount nettest nsh null nx nxconsole nxffs nxflat \
+	nxhello nximage nxlines nxtext ostest pashello pipe poll pwm qencoder \
+	rgmp romfs serloop telnetd thttpd tiff touchscreen udp uip usbserial \
 	sendmail usbstorage usbterm wget wlan
 
 # Sub-directories that might need context setup.  Directories may need
@@ -56,7 +56,7 @@ SUBDIRS = adc buttons can cdcacm composite dhcpd ftpc ftpd hello helloxx \
 CNTXTDIRS = pwm
 
 ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-CNTXTDIRS += adc can cdcacm composite ftpd dhcpd nettest qencoder telnetd
+CNTXTDIRS += adc can cdcacm composite ftpd dhcpd nettest nxconsole qencoder telnetd
 endif
 
 ifeq ($(CONFIG_EXAMPLES_HELLO_BUILTIN),y)
diff --git a/apps/examples/README.txt b/apps/examples/README.txt
index b037b9501..f7b6d74e7 100644
--- a/apps/examples/README.txt
+++ b/apps/examples/README.txt
@@ -614,6 +614,71 @@ examples/nx
     CONFIG_DISABLE_PTHREAD=n
     CONFIG_NX_BLOCKING=y
 
+examples/nxconsole
+^^^^^^^^^^^^^^^^^^
+
+  This directory contains a simple test of the NX console device defined in
+  include/nuttx/nx/nxconsole.h.  The following configuration options
+  can be selected:
+
+    CONFIG_NSH_BUILTIN_APPS -- Build the NX example as a "built-in"
+      that can be executed from the NSH command line    
+    CONFIG_EXAMPLES_NXCON_VPLANE -- The plane to select from the frame-
+      buffer driver for use in the test.  Default: 0
+    CONFIG_EXAMPLES_NXCON_DEVNO - The LCD device to select from the LCD
+      driver for use in the test: Default: 0
+    CONFIG_EXAMPLES_NXCON_BGCOLOR -- The color of the background.  Default depends on
+      CONFIG_EXAMPLES_NXCON_BPP.
+    CONFIG_EXAMPLES_NXCON_WCOLOR -- The color of the window. Default depends on
+      CONFIG_EXAMPLES_NXCON_BPP.
+    CONFIG_EXAMPLES_NXCON_FONTID - Selects the font (see font ID numbers in
+      include/nuttx/nx/nxfonts.h)
+    CONFIG_EXAMPLES_NXCON_FONTCOLOR -- The color of the fonts. Default depends on
+      CONFIG_EXAMPLES_NXCON_BPP.
+    CONFIG_EXAMPLES_NXCON_BPP -- Pixels per pixel to use.  Valid options
+      include 2, 4, 8, 16, 24, and 32.  Default is 32.
+    CONFIG_EXAMPLES_NXCON_TOOLBAR_HEIGHT -- The height of the toolbar.
+      Default: 16
+    CONFIG_EXAMPLES_NXCON_EXTERNINIT - The driver for the graphics device on
+      this platform requires some unusual initialization.  This is the
+      for, for example, SPI LCD/OLED devices.  If this configuration is
+      selected, then the platform code must provide an LCD initialization
+      function with a prototype like:
+
+      #ifdef CONFIG_NX_LCDDRIVER
+      FAR struct lcd_dev_s *up_nxdrvinit(unsigned int devno);
+      #else
+      FAR struct fb_vtable_s *up_nxdrvinit(unsigned int devno);
+      #endif
+
+    CONFIG_EXAMPLES_NXCON_MINOR -- The NX console device minor number.
+      Default is 0 corresponding to /dev/nxcon0
+    CONFIG_EXAMPLES_NXCON_DEVNAME -- The quoated, full path to the
+      NX console device corresponding to CONFIG_EXAMPLES_NXCON_MINOR.
+      Default: "/dev/nxcon0"
+
+  This test can be performed with either the single-user version of
+  NX or with the multiple user version of NX selected with CONFIG_NX_MULTIUSER.
+  If CONFIG_NX_MULTIUSER is defined, then the following configuration
+  options also apply:
+
+    CONFIG_EXAMPLES_NXCON_STACKSIZE -- The stacksize to use when creating
+      the NX server.  Default 2048
+    CONFIG_EXAMPLES_NXCON_CLIENTPRIO -- The client priority.  Default: 100
+    CONFIG_EXAMPLES_NXCON_SERVERPRIO -- The server priority.  Default: 120
+    CONFIG_EXAMPLES_NXCON_LISTENERPRIO -- The priority of the event listener
+      thread. Default 80.
+    CONFIG_EXAMPLES_NXCON_NOTIFYSIGNO -- The signal number to use with
+      nx_eventnotify().  Default: 4
+
+  If CONFIG_NX_MULTIUSER is defined, then the example also expects the
+  following settings and will generate an error if they are not as expected:
+
+    CONFIG_DISABLE_MQUEUE=n
+    CONFIG_DISABLE_SIGNALS=n
+    CONFIG_DISABLE_PTHREAD=n
+    CONFIG_NX_BLOCKING=y
+
 examples/nxffs
 ^^^^^^^^^^^^^^
 
diff --git a/apps/examples/nxconsole/Makefile b/apps/examples/nxconsole/Makefile
new file mode 100644
index 000000000..0816fc96e
--- /dev/null
+++ b/apps/examples/nxconsole/Makefile
@@ -0,0 +1,109 @@
+############################################################################
+# apps/examples/nxconsole/Makefile
+#
+#   Copyright (C) 2011 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/.config
+-include $(TOPDIR)/Make.defs
+include $(APPDIR)/Make.defs
+
+# NuttX NX Console Example.
+
+ASRCS		=
+CSRCS		= nxcon_main.c nxcon_toolbar.c nxcon_wndo.c
+
+ifeq ($(CONFIG_NX_MULTIUSER),y)
+CSRCS		+= nxcon_server.c
+endif
+
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ifeq ($(WINTOOL),y)
+  BIN		= "${shell cygpath -w  $(APPDIR)/libapps$(LIBEXT)}"
+else
+  BIN		= "$(APPDIR)/libapps$(LIBEXT)"
+endif
+
+ROOTDEPPATH	= --dep-path .
+
+# NxConsole built-in application info
+
+APPNAME		= nxcon
+PRIORITY	= SCHED_PRIORITY_DEFAULT
+STACKSIZE	= 2048
+
+# Common build
+
+VPATH		= 
+
+all: .built
+.PHONY: context clean depend distclean
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+.built: $(OBJS)
+	@( for obj in $(OBJS) ; do \
+		$(call ARCHIVE, $(BIN), $${obj}); \
+	done ; )
+	@touch .built
+
+.context:
+ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
+	$(call REGISTER,$(APPNAME),$(PRIORITY),$(STACKSIZE),$(APPNAME)_main)
+	@touch $@
+endif
+
+context: .context
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(ROOTDEPPATH) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	@rm -f *.o *~ .*.swp .built
+	$(call CLEAN)
+
+distclean: clean
+	@rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/apps/examples/nxconsole/nxcon_internal.h b/apps/examples/nxconsole/nxcon_internal.h
new file mode 100644
index 000000000..a4bcd851b
--- /dev/null
+++ b/apps/examples/nxconsole/nxcon_internal.h
@@ -0,0 +1,239 @@
+/****************************************************************************
+ * examples/nxconsole/nxcon_internal.h
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __EXAMPLES_NXCONSOLE_NXCON_INTERNAL_H
+#define __EXAMPLES_NXCONSOLE_NXCON_INTERNAL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <semaphore.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxglib.h>
+#include <nuttx/nx/nxtk.h>
+#include <nuttx/nx/nxconsole.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_NX
+#  error "NX is not enabled (CONFIG_NX)"
+#endif
+
+/* If not specified, assume that the hardware supports one video plane */
+
+#if CONFIG_NX_NPLANES != 1
+#  error "Only CONFIG_NX_NPLANES==1 supported"
+#endif
+
+#ifndef CONFIG_EXAMPLES_NXCON_VPLANE
+#  define CONFIG_EXAMPLES_NXCON_VPLANE 0
+#endif
+
+#ifndef CONFIG_EXAMPLES_NXCON_BPP
+#  define CONFIG_EXAMPLES_NXCON_BPP 32
+#endif
+
+/* Background color */
+
+#ifndef CONFIG_EXAMPLES_NXCON_BGCOLOR
+#  if CONFIG_EXAMPLES_NXCON_BPP == 24 || CONFIG_EXAMPLES_NXCON_BPP == 32
+#    define CONFIG_EXAMPLES_NXCON_BGCOLOR 0x007b68ee
+#  elif CONFIG_EXAMPLES_NXCON_BPP == 16
+#    define CONFIG_EXAMPLES_NXCON_BGCOLOR 0x7b5d
+#  else
+#    define CONFIG_EXAMPLES_NXCON_BGCOLOR ' '
+# endif
+#endif
+
+/* Window color */
+
+#ifndef CONFIG_EXAMPLES_NXCON_WCOLOR
+#  if CONFIG_EXAMPLES_NXCON_BPP == 24 || CONFIG_EXAMPLES_NXCON_BPP == 32
+#    define CONFIG_EXAMPLES_NXCON_WCOLOR 0x007b68ee
+#  elif CONFIG_EXAMPLES_NXCON_BPP == 16
+#    define CONFIG_EXAMPLES_NXCON_WCOLOR 0x7b5d
+#  else
+#    define CONFIG_EXAMPLES_NXCON_WCOLOR ' '
+# endif
+#endif
+
+/* Font ID */
+
+#ifndef CONFIG_EXAMPLES_NXCON_FONTID
+#  define CONFIG_EXAMPLES_NXCON_FONTID NXFONT_DEFAULT
+#endif
+
+/* Font color */
+
+#ifndef CONFIG_EXAMPLES_NXCON_FONTCOLOR
+#  if CONFIG_EXAMPLES_NXCON_BPP == 24 || CONFIG_EXAMPLES_NXCON_BPP == 32
+#    define CONFIG_EXAMPLES_NXCON_FONTCOLOR 0x00000000
+#  elif CONFIG_EXAMPLES_NXCON_BPP == 16
+#    define CONFIG_EXAMPLES_NXCON_FONTCOLOR 0x0000
+#  else
+#    define CONFIG_EXAMPLES_NXCON_FONTCOLOR 'F'
+#  endif
+#endif
+
+/* Height of the toolbar */
+
+#ifndef CONFIG_EXAMPLES_NXCON_TOOLBAR_HEIGHT
+#  define CONFIG_EXAMPLES_NXCON_TOOLBAR_HEIGHT 16
+#endif
+
+/* Multi-user NX support */
+
+#ifdef CONFIG_NX_MULTIUSER
+#  ifdef CONFIG_DISABLE_MQUEUE
+#    error "The multi-threaded example requires MQ support (CONFIG_DISABLE_MQUEUE=n)"
+#  endif
+#  ifdef CONFIG_DISABLE_SIGNALS
+#    error "This example requires signal support (CONFIG_DISABLE_SIGNALS=n)"
+#  endif
+#  ifdef CONFIG_DISABLE_PTHREAD
+#    error "This example requires pthread support (CONFIG_DISABLE_PTHREAD=n)"
+#  endif
+#  ifndef CONFIG_NX_BLOCKING
+#    error "This example depends on CONFIG_NX_BLOCKING"
+#  endif
+#  ifndef CONFIG_EXAMPLES_NXCON_STACKSIZE
+#    define CONFIG_EXAMPLES_NXCON_STACKSIZE 2048
+#  endif
+#  ifndef CONFIG_EXAMPLES_NXCON_LISTENERPRIO
+#    define CONFIG_EXAMPLES_NXCON_LISTENERPRIO 100
+#  endif
+#  ifndef CONFIG_EXAMPLES_NXCON_CLIENTPRIO
+#    define CONFIG_EXAMPLES_NXCON_CLIENTPRIO 100
+#  endif
+#  ifndef CONFIG_EXAMPLES_NXCON_SERVERPRIO
+#    define CONFIG_EXAMPLES_NXCON_SERVERPRIO 120
+#  endif
+#  ifndef CONFIG_EXAMPLES_NXCON_NOTIFYSIGNO
+#    define CONFIG_EXAMPLES_NXCON_NOTIFYSIGNO 4
+#  endif
+#endif
+
+/* NX Console Device */
+
+#ifndef CONFIG_EXAMPLES_NXCON_MINOR
+#  define CONFIG_EXAMPLES_NXCON_MINOR 0
+#endif
+
+#ifndef CONFIG_EXAMPLES_NXCON_DEVNAME
+#  define CONFIG_EXAMPLES_NXCON_DEVNAME "/dev/nxcon0"
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#    define msgflush()
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#    define msgflush() fflush(stdout)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#    define msgflush()
+#  else
+#    define message printf
+#    define msgflush() fflush(stdout)
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* All example global variables are retained in a structure to minimize
+ * the chance of name collisions.
+ */
+
+struct nxcon_state_s
+{
+  volatile bool             haveres;   /* True: Have screen resolution */
+#ifdef CONFIG_NX_MULTIUSER
+  bool                      connected; /* True: Connected to server */
+#endif
+  sem_t                     eventsem;  /* Control waiting for display events */
+  NXHANDLE                  hnx;       /* The connection handler */
+  NXTKWINDOW                hwnd;      /* The window */
+  NXCONSOLE                 hdrvr;     /* The console driver */
+  FAR struct nxcon_window_s wndo;      /* Describes the window */
+  nxgl_coord_t              xres;      /* Screen X resolution */
+  nxgl_coord_t              yres;      /* Screen Y resolution */
+  struct nxgl_size_s        wsize;     /* Window size */
+  struct nxgl_point_s       wpos;      /* Window position */
+};
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+/* All example global variables are retained in a structure to minimize
+ * the chance of name collisions.
+ */
+
+extern struct nxcon_state_s g_nxcon_vars;
+
+/* NX callback vtables */
+
+extern const struct nx_callback_s g_nxconcb;
+extern const struct nx_callback_s g_nxtoolcb;
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef CONFIG_EXAMPLES_NXCON_EXTERNINIT
+extern FAR NX_DRIVERTYPE *up_nxdrvinit(unsigned int devno);
+#endif
+#if defined(CONFIG_NX) && defined(CONFIG_NX_MULTIUSER)
+extern int nxcon_server(int argc, char *argv[]);
+extern FAR void *nxcon_listener(FAR void *arg);
+#endif
+
+#endif /* __EXAMPLES_NXCONSOLE_NXCON_INTERNAL_H */
diff --git a/apps/examples/nxconsole/nxcon_main.c b/apps/examples/nxconsole/nxcon_main.c
new file mode 100644
index 000000000..cc83aac16
--- /dev/null
+++ b/apps/examples/nxconsole/nxcon_main.c
@@ -0,0 +1,506 @@
+/****************************************************************************
+ * examples/nxconsole/nxcon_main.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <errno.h>
+#include <debug.h>
+
+#ifdef CONFIG_NX_LCDDRIVER
+#  include <nuttx/lcd/lcd.h>
+#else
+#  include <nuttx/fb.h>
+#endif
+
+#include <nuttx/arch.h>
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxglib.h>
+#include <nuttx/nx/nxfonts.h>
+#include <nuttx/nx/nxconsole.h>
+
+#include "nxcon_internal.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define NCON_MSG_NLINES 24
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#ifdef CONFIG_NX_KBD
+static const uint8_t g_pumsg[] = "Pop-Up!";
+static const char *g_nxcon_msg[NCON_MSG_NLINES] =
+{
+  "\nJULIET\n",                           /* Line 1 */
+  "Wilt thou be gone?\n",                 /* Line 2 */
+  "  It is not yet near day:\n",          /* Line 3 */
+  "It was the nightingale,\n",            /* Line 4 */
+  "  and not the lark,\n",                /* Line 5 */
+  "That pierced the fearful hollow\n",    /* Line 6 */
+  "  of thine ear;\n",                    /* Line 7 */
+  "Nightly she sings\n",                  /* Line 8 */
+  "  on yon pomegranate-tree:\n",         /* Line 9 */
+  "Believe me, love,\n",                  /* Line 10 */
+  "  it was the nightingale.\n",          /* Line 11 */
+  "\nROMEO\n",                            /* Line 12 */
+  "It was the lark,\n",                   /* Line 13 */
+  "  the herald of the morn,\n",          /* Line 14 */
+  "No nightingale:\n",                    /* Line 15 */
+  "  look, love, what envious streaks\n", /* Line 16 */
+  "Do lace the severing clouds\n",        /* Line 17 */
+  "  in yonder east:\n",                  /* Line 18 */
+  "Night's candles are burnt out,\n",     /* Line 19 */
+  "  and jocund day\n",                   /* Line 20 */
+  "Stands tiptoe\n",                      /* Line 21 */
+  "  on the misty mountain tops.\n",      /* Line 22 */
+  "I must be gone and live,\n",           /* Line 23 */
+  "  or stay and die.\n"                  /* Line 24 */
+};
+#endif
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* All example global variables are retained in a structure to minimize
+ * the chance of name collisions.
+ */
+
+struct nxcon_state_s g_nxcon_vars;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxcon_suinitialize
+ ****************************************************************************/
+
+#ifndef CONFIG_NX_MULTIUSER
+static inline int nxcon_suinitialize(void)
+{
+  FAR NX_DRIVERTYPE *dev;
+
+#if defined(CONFIG_EXAMPLES_NXCON_EXTERNINIT)
+  /* Use external graphics driver initialization */
+
+  message("nxcon_initialize: Initializing external graphics device\n");
+  dev = up_nxdrvinit(CONFIG_EXAMPLES_NXCON_DEVNO);
+  if (!dev)
+    {
+      message("nxcon_initialize: up_nxdrvinit failed, devno=%d\n", CONFIG_EXAMPLES_NXCON_DEVNO);
+      return ERROR;
+    }
+
+#elif defined(CONFIG_NX_LCDDRIVER)
+  int ret;
+
+  /* Initialize the LCD device */
+
+  message("nxcon_initialize: Initializing LCD\n");
+  ret = up_lcdinitialize();
+  if (ret < 0)
+    {
+      message("nxcon_initialize: up_lcdinitialize failed: %d\n", -ret);
+      return ERROR;
+    }
+
+  /* Get the device instance */
+
+  dev = up_lcdgetdev(CONFIG_EXAMPLES_NXCON_DEVNO);
+  if (!dev)
+    {
+      message("nxcon_initialize: up_lcdgetdev failed, devno=%d\n",
+              CONFIG_EXAMPLES_NXCON_DEVNO);
+      return ERROR;
+    }
+
+  /* Turn the LCD on at 75% power */
+
+  (void)dev->setpower(dev, ((3*CONFIG_LCD_MAXPOWER + 3)/4));
+#else
+  int ret;
+
+  /* Initialize the frame buffer device */
+
+  message("nxcon_initialize: Initializing framebuffer\n");
+  ret = up_fbinitialize();
+  if (ret < 0)
+    {
+      message("nxcon_initialize: up_fbinitialize failed: %d\n", -ret);
+      return ERROR;
+    }
+
+  dev = up_fbgetvplane(CONFIG_EXAMPLES_NXCON_VPLANE);
+  if (!dev)
+    {
+      message("nxcon_initialize: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXCON_VPLANE);
+      return ERROR;
+    }
+#endif
+
+  /* Then open NX */
+
+  message("nxcon_initialize: Open NX\n");
+  g_nxcon_vars.hnx = nx_open(dev);
+  if (!g_nxcon_vars.hnx)
+    {
+      message("nxcon_initialize: nx_open failed: %d\n", errno);
+      return ERROR;
+    }
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Name: nxcon_initialize
+ ****************************************************************************/
+
+#ifdef CONFIG_NX_MULTIUSER
+static inline int nxcon_muinitialize(void)
+{
+  struct sched_param param;
+  pthread_t thread;
+  pid_t servrid;
+  int ret;
+
+  /* Set the client task priority */
+
+  param.sched_priority = CONFIG_EXAMPLES_NXCON_CLIENTPRIO;
+  ret = sched_setparam(0, &param);
+  if (ret < 0)
+    {
+      message("nxcon_initialize: sched_setparam failed: %d\n" , ret);
+      return ERROR;
+    }
+
+  /* Start the server task */
+
+  message("nxcon_initialize: Starting nxcon_server task\n");
+  servrid = task_create("NX Server", CONFIG_EXAMPLES_NXCON_SERVERPRIO,
+                        CONFIG_EXAMPLES_NXCON_STACKSIZE, nxcon_server, NULL);
+  if (servrid < 0)
+    {
+      message("nxcon_initialize: Failed to create nxcon_server task: %d\n", errno);
+      return ERROR;
+    }
+
+  /* Wait a bit to let the server get started */
+
+  sleep(1);
+
+  /* Connect to the server */
+
+  g_nxcon_vars.hnx = nx_connect();
+  if (g_nxcon_vars.hnx)
+    {
+       pthread_attr_t attr;
+
+       /* Start a separate thread to listen for server events.  This is probably
+        * the least efficient way to do this, but it makes this example flow more
+        * smoothly.
+        */
+
+       (void)pthread_attr_init(&attr);
+       param.sched_priority = CONFIG_EXAMPLES_NXCON_LISTENERPRIO;
+       (void)pthread_attr_setschedparam(&attr, &param);
+       (void)pthread_attr_setstacksize(&attr, CONFIG_EXAMPLES_NXCON_STACKSIZE);
+
+       ret = pthread_create(&thread, &attr, nxcon_listener, NULL);
+       if (ret != 0)
+         {
+            printf("nxcon_initialize: pthread_create failed: %d\n", ret);
+            return ERROR;
+         }
+
+       /* Don't return until we are connected to the server */
+
+       while (!g_nxcon_vars.connected)
+         {
+           /* Wait for the listener thread to wake us up when we really
+            * are connected.
+            */
+
+           (void)sem_wait(&g_nxcon_vars.eventsem);
+         }
+    }
+  else
+    {
+      message("nxcon_initialize: nx_connect failed: %d\n", errno);
+      return ERROR;
+    }
+  return OK;
+}
+#endif
+
+/****************************************************************************
+ * Name: nxcon_initialize
+ ****************************************************************************/
+
+static int nxcon_initialize(void)
+{
+#ifdef CONFIG_NX_MULTIUSER
+  return nxcon_muinitialize();
+#else
+  return nxcon_suinitialize();
+#endif
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: user_start/nxcon_main
+ ****************************************************************************/
+
+#ifdef CONFIG_NSH_BUILTIN_APPS
+#  define MAIN_NAME nxcon_main
+#  define MAIN_NAME_STRING "nxcon_main"
+#else
+#  define MAIN_NAME user_start
+#  define MAIN_NAME_STRING "user_start"
+#endif
+
+int MAIN_NAME(int argc, char **argv)
+{
+  int exitcode = EXIT_FAILURE;
+  nxgl_mxpixel_t color;
+  int ndx;
+  int ret;
+  int fd;
+
+  /* Reset all global data */
+
+  memset(&g_nxcon_vars, 0, sizeof(struct nxcon_state_s));
+
+  /* NX Initialization ******************************************************/
+  /* Initialize NX */
+
+  ret = nxcon_initialize();
+  message(MAIN_NAME_STRING ": NX handle=%p\n", g_nxcon_vars.hnx);
+  if (!g_nxcon_vars.hnx || ret < 0)
+    {
+      message(MAIN_NAME_STRING ": Failed to get NX handle: %d\n", errno);
+      goto errout;
+    }
+
+  /* Set the background to the configured background color */
+
+  message(MAIN_NAME_STRING ": Set background color=%d\n", CONFIG_EXAMPLES_NXCON_BGCOLOR);
+  color = CONFIG_EXAMPLES_NXCON_BGCOLOR;
+  ret = nx_setbgcolor(g_nxcon_vars.hnx, &color);
+  if (ret < 0)
+    {
+      message(MAIN_NAME_STRING ": nx_setbgcolor failed: %d\n", errno);
+      goto errout_with_nx;
+    }
+
+  /* Window Configuration ***************************************************/
+  /* Create a window */
+
+  message(MAIN_NAME_STRING ": Create window\n");
+  g_nxcon_vars.hwnd = nxtk_openwindow(&g_nxcon_vars.hnx, &g_nxconcb, NULL);
+  if (!g_nxcon_vars.hwnd)
+    {
+      message(MAIN_NAME_STRING ": nxtk_openwindow failed: %d\n", errno);
+      goto errout_with_nx;
+    }
+  message(MAIN_NAME_STRING ": hwnd=%p\n", g_nxcon_vars.hwnd);
+
+  /* Wait until we have the screen resolution.  We'll have this immediately
+   * unless we are dealing with the NX server.
+   */
+
+  while (!g_nxcon_vars.haveres)
+    {
+      (void)sem_wait(&g_nxcon_vars.eventsem);
+    }
+  message(MAIN_NAME_STRING ": Screen resolution (%d,%d)\n", g_nxcon_vars.xres, g_nxcon_vars.yres);
+
+  /* Determine the size and position of the window */
+
+  g_nxcon_vars.wndo.wsize.w = g_nxcon_vars.xres / 2 + g_nxcon_vars.xres / 4;
+  g_nxcon_vars.wndo.wsize.h = g_nxcon_vars.yres / 2 + g_nxcon_vars.yres / 4;
+
+  g_nxcon_vars.wpos.x       = g_nxcon_vars.xres / 8;
+  g_nxcon_vars.wpos.y       = g_nxcon_vars.yres / 8;
+
+  /* Set the window position */
+
+  message(MAIN_NAME_STRING ": Set window position to (%d,%d)\n",
+          g_nxcon_vars.wpos.x, g_nxcon_vars.wpos.y);
+
+  ret = nxtk_setposition(g_nxcon_vars.hwnd, &g_nxcon_vars.wpos);
+  if (ret < 0)
+    {
+      message(MAIN_NAME_STRING ": nxtk_setposition failed: %d\n", errno);
+      goto errout_with_hwnd;
+    }
+
+  /* Set the window size */
+
+  message(MAIN_NAME_STRING ": Set window size to (%d,%d)\n",
+          g_nxcon_vars.wndo.wsize.w, g_nxcon_vars.wndo.wsize.h);
+
+  ret = nxtk_setsize(g_nxcon_vars.hwnd, &g_nxcon_vars.wndo.wsize);
+  if (ret < 0)
+    {
+      message(MAIN_NAME_STRING ": nxtk_setsize failed: %d\n", errno);
+      goto errout_with_hwnd;
+    }
+
+  /* Open the toolbar */
+
+  message(MAIN_NAME_STRING ": Add toolbar to window\n");
+  ret = nxtk_opentoolbar(g_nxcon_vars.hwnd, CONFIG_EXAMPLES_NXCON_TOOLBAR_HEIGHT, &g_nxtoolcb, NULL);
+  if (ret < 0)
+    {
+      message(MAIN_NAME_STRING ": nxtk_opentoolbar failed: %d\n", errno);
+      goto errout_with_hwnd;
+    }
+
+  /* NxConsole Configuration ************************************************/
+  /* Use the window to create an NX console */
+
+  g_nxcon_vars.wndo.wcolor[0] = CONFIG_EXAMPLES_NXCON_WCOLOR;
+  g_nxcon_vars.wndo.fcolor[0] = CONFIG_EXAMPLES_NXCON_FONTCOLOR;
+  g_nxcon_vars.wndo.fontid    = CONFIG_EXAMPLES_NXCON_FONTID;
+
+  g_nxcon_vars.hdrvr = nxtk_register(g_nxcon_vars.hwnd, &g_nxcon_vars.wndo, CONFIG_EXAMPLES_NXCON_MINOR);
+  if (!g_nxcon_vars.hdrvr)
+    {
+      message(MAIN_NAME_STRING ": nxtk_register failed: %d\n", errno);
+      goto errout_with_hwnd;
+    }
+
+  /* Open the driver */
+
+  fd = open(CONFIG_EXAMPLES_NXCON_DEVNAME, O_RDONLY);
+  if (fd < 0)
+    {
+      message(MAIN_NAME_STRING ": open %d read-only failed: %d\n",
+              CONFIG_EXAMPLES_NXCON_DEVNAME, errno);
+      goto errout_with_driver;
+    }
+
+  /* Now re-direct stdout and stderr so that they use the NX console driver */
+
+  (void)dup2(fd, 1);
+  (void)dup2(fd, 2);
+
+   /* And we can close our original driver fd */
+
+   close(fd);
+
+  /* Test Loop **************************************************************/
+  /* Now loop, adding text to the NX console */
+
+  ndx = 0;
+  for (;;)
+    {
+      /* Sleep for one second */
+
+      sleep(1);
+
+      /* Give another line of text to the NX console.*/
+
+      printf(g_nxcon_msg[ndx]);
+      if (++ndx >= NCON_MSG_NLINES)
+        {
+#ifdef CONFIG_NSH_BUILTIN_APPS
+          /* If this is an NSH built-in apps, then just return after all
+           * of the lines have been presented.
+           */
+
+          break;
+#else
+          /* Otherwise, just reset the index to the first line and continue */
+
+          ndx = 0;
+#endif
+        }
+    }
+  exitcode = EXIT_SUCCESS;
+
+  /* Clean-up and Error Exits ***********************************************/
+
+errout_with_driver:
+  message(MAIN_NAME_STRING ": Unregister the NX console device\n");
+  (void)nxcon_unregister(g_nxcon_vars.hdrvr);
+
+errout_with_hwnd:
+  message(MAIN_NAME_STRING ": Close the window\n");
+  (void)nxtk_closewindow(g_nxcon_vars.hwnd);
+
+errout_with_nx:
+#ifdef CONFIG_NX_MULTIUSER
+  /* Disconnect from the server */
+
+  message(MAIN_NAME_STRING ": Disconnect from the server\n");
+  nx_disconnect(g_nxcon_vars.hnx);
+#else
+  /* Close the server */
+
+  message(MAIN_NAME_STRING ": Close NX\n");
+  nx_close(g_nxcon_vars.hnx);
+#endif
+errout:
+  return exitcode;
+}
diff --git a/apps/examples/nxconsole/nxcon_server.c b/apps/examples/nxconsole/nxcon_server.c
new file mode 100644
index 000000000..661479a4a
--- /dev/null
+++ b/apps/examples/nxconsole/nxcon_server.c
@@ -0,0 +1,193 @@
+/****************************************************************************
+ * examples/nxconsole/nxcon_server.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sched.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/nx/nx.h>
+
+#ifdef CONFIG_NX_LCDDRIVER
+#  include <nuttx/lcd/lcd.h>
+#else
+#  include <nuttx/fb.h>
+#endif
+
+#include "nxcon_internal.h"
+
+#ifdef CONFIG_NX_MULTIUSER
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxcon_server
+ ****************************************************************************/
+
+int nxcon_server(int argc, char *argv[])
+{
+  FAR NX_DRIVERTYPE *dev;
+  int ret;
+
+#if defined(CONFIG_EXAMPLES_NXCON_EXTERNINIT)
+  /* Use external graphics driver initialization */
+
+  message("nxcon_server: Initializing external graphics device\n");
+  dev = up_nxdrvinit(CONFIG_EXAMPLES_NXCON_DEVNO);
+  if (!dev)
+    {
+      message("nxcon_server: up_nxdrvinit failed, devno=%d\n", CONFIG_EXAMPLES_NXCON_DEVNO);
+      return ERROR;
+    }
+
+#elif defined(CONFIG_NX_LCDDRIVER)
+  /* Initialize the LCD device */
+
+  message("nxcon_server: Initializing LCD\n");
+  ret = up_lcdinitialize();
+  if (ret < 0)
+    {
+      message("nxcon_server: up_lcdinitialize failed: %d\n", -ret);
+      return 1;
+    }
+
+  /* Get the device instance */
+
+  dev = up_lcdgetdev(CONFIG_EXAMPLES_NXCON_DEVNO);
+  if (!dev)
+    {
+      message("nxcon_server: up_lcdgetdev failed, devno=%d\n", CONFIG_EXAMPLES_NXCON_DEVNO);
+      return 2;
+    }
+
+  /* Turn the LCD on at 75% power */
+
+  (void)dev->setpower(dev, ((3*CONFIG_LCD_MAXPOWER + 3)/4));
+#else
+  /* Initialize the frame buffer device */
+
+  message("nxcon_server: Initializing framebuffer\n");
+  ret = up_fbinitialize();
+  if (ret < 0)
+    {
+      message("nxcon_server: up_fbinitialize failed: %d\n", -ret);
+      return 1;
+    }
+
+  dev = up_fbgetvplane(CONFIG_EXAMPLES_NXCON_VPLANE);
+  if (!dev)
+    {
+      message("nxcon_server: up_fbgetvplane failed, vplane=%d\n", CONFIG_EXAMPLES_NXCON_VPLANE);
+      return 2;
+    }
+#endif
+
+  /* Then start the server */
+
+  ret = nx_run(dev);
+  gvdbg("nx_run returned: %d\n", errno);
+  return 3;
+}
+
+/****************************************************************************
+ * Name: nxcon_listener
+ ****************************************************************************/
+
+FAR void *nxcon_listener(FAR void *arg)
+{
+  int ret;
+
+  /* Process events forever */
+
+  for (;;)
+    {
+      /* Handle the next event.  If we were configured blocking, then
+       * we will stay right here until the next event is received.  Since
+       * we have dedicated a while thread to servicing events, it would
+       * be most natural to also select CONFIG_NX_BLOCKING -- if not, the
+       * following would be a tight infinite loop (unless we added addition
+       * logic with nx_eventnotify and sigwait to pace it).
+       */
+
+      ret = nx_eventhandler(g_nxcon_vars.hnx);
+      if (ret < 0)
+        {
+          /* An error occurred... assume that we have lost connection with
+           * the server.
+           */
+
+          message("nxcon_listener: Lost server connection: %d\n", errno);
+          exit(NXEXIT_LOSTSERVERCONN);
+        }
+
+      /* If we received a message, we must be connected */
+
+      if (!g_nxcon_vars.connected)
+        {
+          g_nxcon_vars.connected = true;
+          sem_post(&g_nxcon_vars.eventsem);
+          message("nxcon_listener: Connected\n");
+        }
+    }
+}
+
+#endif /* CONFIG_NX_MULTIUSER */
diff --git a/apps/examples/nxconsole/nxcon_toolbar.c b/apps/examples/nxconsole/nxcon_toolbar.c
new file mode 100644
index 000000000..38b5c1ee3
--- /dev/null
+++ b/apps/examples/nxconsole/nxcon_toolbar.c
@@ -0,0 +1,162 @@
+/****************************************************************************
+ * examples/nxconsole/nxcon_toolbar.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <semaphore.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxfonts.h>
+
+#include "nxcon_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static void nxtool_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+                          bool morem, FAR void *arg);
+static void nxtool_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
+                            FAR const struct nxgl_point_s *pos,
+                            FAR const struct nxgl_rect_s *bounds,
+                            FAR void *arg);
+#ifdef CONFIG_NX_MOUSE
+static void nxtool_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
+                           uint8_t buttons, FAR void *arg);
+#endif
+
+#ifdef CONFIG_NX_KBD
+static void nxtool_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
+                         FAR void *arg);
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* Background window call table */
+
+const struct nx_callback_s g_nxtoolcb =
+{
+  nxtool_redraw,   /* redraw */
+  nxtool_position  /* position */
+#ifdef CONFIG_NX_MOUSE
+  , nxtool_mousein /* mousein */
+#endif
+#ifdef CONFIG_NX_KBD
+  , nxtool_kbdin   /* my kbdin */
+#endif
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxtool_redraw
+ ****************************************************************************/
+
+static void nxtool_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+                          bool more, FAR void *arg)
+{
+  gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
+         hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
+         more ? "true" : "false");
+}
+
+/****************************************************************************
+ * Name: nxtool_position
+ ****************************************************************************/
+
+static void nxtool_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
+                            FAR const struct nxgl_point_s *pos,
+                            FAR const struct nxgl_rect_s *bounds,
+                            FAR void *arg)
+{
+  gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
+        hwnd, size->w, size->h, pos->x, pos->y,
+        bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
+}
+
+/****************************************************************************
+ * Name: nxtool_mousein
+ ****************************************************************************/
+
+#ifdef CONFIG_NX_MOUSE
+static void nxtool_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
+                           uint8_t buttons, FAR void *arg)
+{
+  gvdbg("hwnd=%p pos=(%d,%d) button=%02x\n", hwnd,  pos->x, pos->y, buttons);
+}
+#endif
+
+/****************************************************************************
+ * Name: nxtool_kbdin
+ ****************************************************************************/
+
+#ifdef CONFIG_NX_KBD
+static void nxtool_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
+                         FAR void *arg)
+{
+  gvdbg("hwnd=%p nch=%d\n", hwnd, nch);
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
diff --git a/apps/examples/nxconsole/nxcon_wndo.c b/apps/examples/nxconsole/nxcon_wndo.c
new file mode 100644
index 000000000..b052af0d2
--- /dev/null
+++ b/apps/examples/nxconsole/nxcon_wndo.c
@@ -0,0 +1,194 @@
+/****************************************************************************
+ * examples/nxconsole/nxcon_wndo.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <semaphore.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/nx/nx.h>
+#include <nuttx/nx/nxfonts.h>
+
+#include "nxcon_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+static void nxwndo_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+                          bool morem, FAR void *arg);
+static void nxwndo_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
+                            FAR const struct nxgl_point_s *pos,
+                            FAR const struct nxgl_rect_s *bounds,
+                            FAR void *arg);
+#ifdef CONFIG_NX_MOUSE
+static void nxwndo_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
+                           uint8_t buttons, FAR void *arg);
+#endif
+
+#ifdef CONFIG_NX_KBD
+static void nxwndo_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
+                         FAR void *arg);
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/* Background window call table */
+
+const struct nx_callback_s g_nxconcb =
+{
+  nxwndo_redraw,   /* redraw */
+  nxwndo_position  /* position */
+#ifdef CONFIG_NX_MOUSE
+  , nxwndo_mousein /* mousein */
+#endif
+#ifdef CONFIG_NX_KBD
+  , nxwndo_kbdin   /* my kbdin */
+#endif
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxwndo_redraw
+ ****************************************************************************/
+
+static void nxwndo_redraw(NXWINDOW hwnd, FAR const struct nxgl_rect_s *rect,
+                          bool more, FAR void *arg)
+{
+  gvdbg("hwnd=%p rect={(%d,%d),(%d,%d)} more=%s\n",
+         hwnd, rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y,
+         more ? "true" : "false");
+
+  /* Inform the NX console of the redraw request */
+
+  nxcon_redraw(g_nxcon_vars.hdrvr, rect, more);
+}
+
+/****************************************************************************
+ * Name: nxwndo_position
+ ****************************************************************************/
+
+static void nxwndo_position(NXWINDOW hwnd, FAR const struct nxgl_size_s *size,
+                            FAR const struct nxgl_point_s *pos,
+                            FAR const struct nxgl_rect_s *bounds,
+                            FAR void *arg)
+{
+  /* Report the position */
+
+  gvdbg("hwnd=%p size=(%d,%d) pos=(%d,%d) bounds={(%d,%d),(%d,%d)}\n",
+        hwnd, size->w, size->h, pos->x, pos->y,
+        bounds->pt1.x, bounds->pt1.y, bounds->pt2.x, bounds->pt2.y);
+
+  /* Have we picked off the window bounds yet? */
+
+  if (!g_nxcon_vars.haveres)
+    {
+      /* Save the background window handle */
+
+      g_nxcon_vars.hwnd = hwnd;
+
+      /* Save the background window size */
+
+      g_nxcon_vars.wndo.wsize.w = size->w;
+      g_nxcon_vars.wndo.wsize.h = size->h;
+
+      /* Save the window limits (these should be the same for all places and all windows */
+
+      g_nxcon_vars.xres = bounds->pt2.x + 1;
+      g_nxcon_vars.yres = bounds->pt2.y + 1;
+
+      g_nxcon_vars.haveres = true;
+      sem_post(&g_nxcon_vars.eventsem);
+      gvdbg("Have xres=%d yres=%d\n", g_nxcon_vars.xres, g_nxcon_vars.yres);
+    }
+}
+
+/****************************************************************************
+ * Name: nxwndo_mousein
+ ****************************************************************************/
+
+#ifdef CONFIG_NX_MOUSE
+static void nxwndo_mousein(NXWINDOW hwnd, FAR const struct nxgl_point_s *pos,
+                           uint8_t buttons, FAR void *arg)
+{
+  gvdbg("hwnd=%p pos=(%d,%d) button=%02x\n",
+        hwnd,  pos->x, pos->y, buttons);
+}
+#endif
+
+/****************************************************************************
+ * Name: nxwndo_kbdin
+ ****************************************************************************/
+
+#ifdef CONFIG_NX_KBD
+static void nxwndo_kbdin(NXWINDOW hwnd, uint8_t nch, FAR const uint8_t *ch,
+                         FAR void *arg)
+{
+  gvdbg("hwnd=%p nch=%d\n", hwnd, nch);
+  (void)write(1, ch, nch);
+}
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/