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/****************************************************************************
* 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"
/****************************************************************************
* 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(EXIT_FAILURE);
}
/* 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");
}
}
}
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