examples/nxconsole/nxcon_internal.h - nuttx-apps - Git at Google

 /****************************************************************************
  * 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/rgbcolors.h>

 #include <nuttx/nx/nx.h>
 #include <nuttx/nx/nxglib.h>
 #include <nuttx/nx/nxtk.h>
 #include <nuttx/nx/nxconsole.h>

 /****************************************************************************
  * Definitions
  ****************************************************************************/
 /* Configuration ************************************************************/
 /* Need NX graphics support */

 #ifndef CONFIG_NX
 #  error "NX is not enabled (CONFIG_NX=y)"
 #endif

 /* Can't do the NxConsole example if the NxConsole driver is not built */

 #ifndef CONFIG_NXCONSOLE
 #  error "NxConsole is not enabled (CONFIG_NXCONSOLE=y)"
 #endif

 /* NxConsole requires NX Multi-user mode */

 #ifndef CONFIG_NX_MULTIUSER
 #  error "Multi-user NX support is required (CONFIG_NX_MULTIUSER=y)"
 #endif

 /* If there is no NSH console, then why are we running this example? */

 #ifndef CONFIG_NSH_CONSOLE
 #  warning "Expected CONFIG_NSH_CONSOLE=y"
 #endif

 /* The NSH telnet console requires networking support (and TCP/IP) */

 #ifndef CONFIG_NET
 #  undef CONFIG_NSH_TELNET
 #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

 /* Pixel depth.  If none provided, pick the smallest enabled pixel depth */

 #ifndef CONFIG_EXAMPLES_NXCON_BPP
 #  if !defined(CONFIG_NX_DISABLE_1BPP)
 #    define CONFIG_EXAMPLES_NXCON_BPP 1
 #  elif !defined(CONFIG_NX_DISABLE_2BPP)
 #    define CONFIG_EXAMPLES_NXCON_BPP 2
 #  elif !defined(CONFIG_NX_DISABLE_4BPP)
 #    define CONFIG_EXAMPLES_NXCON_BPP 4
 #  elif !defined(CONFIG_NX_DISABLE_8BPP)
 #    define CONFIG_EXAMPLES_NXCON_BPP 8
 #  elif !defined(CONFIG_NX_DISABLE_16BPP)
 #    define CONFIG_EXAMPLES_NXCON_BPP 16
 //#elif !defined(CONFIG_NX_DISABLE_24BPP)
 //#    define CONFIG_NXCONSOLE_BPP 24
 #  elif !defined(CONFIG_NX_DISABLE_32BPP)
 #    define CONFIG_EXAMPLES_NXCON_BPP 32
 #  else
 #    error "No pixel depth provided"
 #  endif
 #endif

 /* Background color (default is darker royal blue) */

 #ifndef CONFIG_EXAMPLES_NXCON_BGCOLOR
 #  if CONFIG_EXAMPLES_NXCON_BPP == 24 || CONFIG_EXAMPLES_NXCON_BPP == 32
 #    define CONFIG_EXAMPLES_NXCON_BGCOLOR RGBTO24(39, 64, 139)
 #  elif CONFIG_EXAMPLES_NXCON_BPP == 16
 #    define CONFIG_EXAMPLES_NXCON_BGCOLOR RGBTO16(39, 64, 139)
 #  else
 #    define CONFIG_EXAMPLES_NXCON_BGCOLOR RGBTO8(39, 64, 139)
 # endif
 #endif

 /* Window color (lighter steel blue) */

 #ifndef CONFIG_EXAMPLES_NXCON_WCOLOR
 #  if CONFIG_EXAMPLES_NXCON_BPP == 24 || CONFIG_EXAMPLES_NXCON_BPP == 32
 #    define CONFIG_EXAMPLES_NXCON_WCOLOR RGBTO24(202, 225, 255)
 #  elif CONFIG_EXAMPLES_NXCON_BPP == 16
 #    define CONFIG_EXAMPLES_NXCON_WCOLOR RGBTO16(202, 225, 255)
 #  else
 #    define CONFIG_EXAMPLES_NXCON_WCOLOR RGBTO8(202, 225, 255)
 # endif
 #endif

 /* Toolbar color (medium grey) */

 #ifndef CONFIG_EXAMPLES_NXCON_TBCOLOR
 #  if CONFIG_EXAMPLES_NX_BPP == 24 || CONFIG_EXAMPLES_NX_BPP == 32
 #    define CONFIG_EXAMPLES_NXCON_TBCOLOR RGBTO24(188, 188, 188)
 #  elif CONFIG_EXAMPLES_NX_BPP == 16
 #    define CONFIG_EXAMPLES_NXCON_TBCOLOR RGBTO16(188, 188, 188)
 #  else
 #    define CONFIG_EXAMPLES_NXCON_TBCOLOR RGBTO8(188, 188, 188)
 #  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 RGBTO24(0, 0, 0)
 #  elif CONFIG_EXAMPLES_NXCON_BPP == 16
 #    define CONFIG_EXAMPLES_NXCON_FONTCOLOR RGBTO16(0, 0, 0)
 #  else
 #    define CONFIG_EXAMPLES_NXCON_FONTCOLOR RGBTO8(0, 0, 0)
 #  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_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

 /* Graphics Device */

 #ifndef CONFIG_EXAMPLES_NXCON_DEVNO
 #  define CONFIG_EXAMPLES_NXCON_DEVNO 0
 #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

 /* NxConsole task */

 #ifndef CONFIG_EXAMPLES_NXCONSOLE_PRIO
 #  define CONFIG_EXAMPLES_NXCONSOLE_PRIO SCHED_PRIORITY_DEFAULT
 #endif

 #ifndef CONFIG_EXAMPLES_NXCONSOLE_STACKSIZE
 #  define CONFIG_EXAMPLES_NXCONSOLE_STACKSIZE 2048
 #endif

 /* Debug ********************************************************************/

 #ifdef CONFIG_CPP_HAVE_VARARGS
 #  ifdef CONFIG_DEBUG
 #    define message(...) lowsyslog(__VA_ARGS__)
 #    define msgflush()
 #  else
 #    define message(...) printf(__VA_ARGS__)
 #    define msgflush() fflush(stdout)
 #  endif
 #else
 #  ifdef CONFIG_DEBUG
 #    define message lowsyslog
 #    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 */
   volatile bool         connected; /* True: Connected to server */
   sem_t                 eventsem;  /* Control waiting for display events */
   pid_t                 pid;       /* Console task ID */
   NXHANDLE              hnx;       /* The connection handler */
   NXTKWINDOW            hwnd;      /* The window */
   NXCONSOLE             hdrvr;     /* The console driver */
   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
  ****************************************************************************/
 /* Board-specific driver intiialization */

 #ifdef CONFIG_EXAMPLES_NXCON_EXTERNINIT
 extern FAR NX_DRIVERTYPE *up_nxdrvinit(unsigned int devno);
 #endif

 /* Server thread support */

 extern int nxcon_server(int argc, char *argv[]);
 extern FAR void *nxcon_listener(FAR void *arg);

 #endif /* __EXAMPLES_NXCONSOLE_NXCON_INTERNAL_H */
	/****************************************************************************
	* 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/rgbcolors.h>

	#include <nuttx/nx/nx.h>
	#include <nuttx/nx/nxglib.h>
	#include <nuttx/nx/nxtk.h>
	#include <nuttx/nx/nxconsole.h>

	/****************************************************************************
	* Definitions
	****************************************************************************/
	/* Configuration ************************************************************/
	/* Need NX graphics support */

	#ifndef CONFIG_NX
	# error "NX is not enabled (CONFIG_NX=y)"
	#endif

	/* Can't do the NxConsole example if the NxConsole driver is not built */

	#ifndef CONFIG_NXCONSOLE
	# error "NxConsole is not enabled (CONFIG_NXCONSOLE=y)"
	#endif

	/* NxConsole requires NX Multi-user mode */

	#ifndef CONFIG_NX_MULTIUSER
	# error "Multi-user NX support is required (CONFIG_NX_MULTIUSER=y)"
	#endif

	/* If there is no NSH console, then why are we running this example? */

	#ifndef CONFIG_NSH_CONSOLE
	# warning "Expected CONFIG_NSH_CONSOLE=y"
	#endif

	/* The NSH telnet console requires networking support (and TCP/IP) */

	#ifndef CONFIG_NET
	# undef CONFIG_NSH_TELNET
	#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

	/* Pixel depth. If none provided, pick the smallest enabled pixel depth */

	#ifndef CONFIG_EXAMPLES_NXCON_BPP
	# if !defined(CONFIG_NX_DISABLE_1BPP)
	# define CONFIG_EXAMPLES_NXCON_BPP 1
	# elif !defined(CONFIG_NX_DISABLE_2BPP)
	# define CONFIG_EXAMPLES_NXCON_BPP 2
	# elif !defined(CONFIG_NX_DISABLE_4BPP)
	# define CONFIG_EXAMPLES_NXCON_BPP 4
	# elif !defined(CONFIG_NX_DISABLE_8BPP)
	# define CONFIG_EXAMPLES_NXCON_BPP 8
	# elif !defined(CONFIG_NX_DISABLE_16BPP)
	# define CONFIG_EXAMPLES_NXCON_BPP 16
	//#elif !defined(CONFIG_NX_DISABLE_24BPP)
	//# define CONFIG_NXCONSOLE_BPP 24
	# elif !defined(CONFIG_NX_DISABLE_32BPP)
	# define CONFIG_EXAMPLES_NXCON_BPP 32
	# else
	# error "No pixel depth provided"
	# endif
	#endif

	/* Background color (default is darker royal blue) */

	#ifndef CONFIG_EXAMPLES_NXCON_BGCOLOR
	# if CONFIG_EXAMPLES_NXCON_BPP == 24 \|\| CONFIG_EXAMPLES_NXCON_BPP == 32
	# define CONFIG_EXAMPLES_NXCON_BGCOLOR RGBTO24(39, 64, 139)
	# elif CONFIG_EXAMPLES_NXCON_BPP == 16
	# define CONFIG_EXAMPLES_NXCON_BGCOLOR RGBTO16(39, 64, 139)
	# else
	# define CONFIG_EXAMPLES_NXCON_BGCOLOR RGBTO8(39, 64, 139)
	# endif
	#endif

	/* Window color (lighter steel blue) */

	#ifndef CONFIG_EXAMPLES_NXCON_WCOLOR
	# if CONFIG_EXAMPLES_NXCON_BPP == 24 \|\| CONFIG_EXAMPLES_NXCON_BPP == 32
	# define CONFIG_EXAMPLES_NXCON_WCOLOR RGBTO24(202, 225, 255)
	# elif CONFIG_EXAMPLES_NXCON_BPP == 16
	# define CONFIG_EXAMPLES_NXCON_WCOLOR RGBTO16(202, 225, 255)
	# else
	# define CONFIG_EXAMPLES_NXCON_WCOLOR RGBTO8(202, 225, 255)
	# endif
	#endif

	/* Toolbar color (medium grey) */

	#ifndef CONFIG_EXAMPLES_NXCON_TBCOLOR
	# if CONFIG_EXAMPLES_NX_BPP == 24 \|\| CONFIG_EXAMPLES_NX_BPP == 32
	# define CONFIG_EXAMPLES_NXCON_TBCOLOR RGBTO24(188, 188, 188)
	# elif CONFIG_EXAMPLES_NX_BPP == 16
	# define CONFIG_EXAMPLES_NXCON_TBCOLOR RGBTO16(188, 188, 188)
	# else
	# define CONFIG_EXAMPLES_NXCON_TBCOLOR RGBTO8(188, 188, 188)
	# 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 RGBTO24(0, 0, 0)
	# elif CONFIG_EXAMPLES_NXCON_BPP == 16
	# define CONFIG_EXAMPLES_NXCON_FONTCOLOR RGBTO16(0, 0, 0)
	# else
	# define CONFIG_EXAMPLES_NXCON_FONTCOLOR RGBTO8(0, 0, 0)
	# 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_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

	/* Graphics Device */

	#ifndef CONFIG_EXAMPLES_NXCON_DEVNO
	# define CONFIG_EXAMPLES_NXCON_DEVNO 0
	#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

	/* NxConsole task */

	#ifndef CONFIG_EXAMPLES_NXCONSOLE_PRIO
	# define CONFIG_EXAMPLES_NXCONSOLE_PRIO SCHED_PRIORITY_DEFAULT
	#endif

	#ifndef CONFIG_EXAMPLES_NXCONSOLE_STACKSIZE
	# define CONFIG_EXAMPLES_NXCONSOLE_STACKSIZE 2048
	#endif

	/* Debug ********************************************************************/

	#ifdef CONFIG_CPP_HAVE_VARARGS
	# ifdef CONFIG_DEBUG
	# define message(...) lowsyslog(__VA_ARGS__)
	# define msgflush()
	# else
	# define message(...) printf(__VA_ARGS__)
	# define msgflush() fflush(stdout)
	# endif
	#else
	# ifdef CONFIG_DEBUG
	# define message lowsyslog
	# 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 */
	volatile bool connected; /* True: Connected to server */
	sem_t eventsem; /* Control waiting for display events */
	pid_t pid; /* Console task ID */
	NXHANDLE hnx; /* The connection handler */
	NXTKWINDOW hwnd; /* The window */
	NXCONSOLE hdrvr; /* The console driver */
	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
	****************************************************************************/
	/* Board-specific driver intiialization */

	#ifdef CONFIG_EXAMPLES_NXCON_EXTERNINIT
	extern FAR NX_DRIVERTYPE *up_nxdrvinit(unsigned int devno);
	#endif

	/* Server thread support */

	extern int nxcon_server(int argc, char *argv[]);
	extern FAR void nxcon_listener(FAR void arg);

	#endif /* __EXAMPLES_NXCONSOLE_NXCON_INTERNAL_H */