forked from Archive/PX4-Autopilot
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
/****************************************************************************
|
|
* nuttx/graphics/nxconsole/nxcon_unregister.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 <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include <nuttx/kmalloc.h>
|
|
#include <nuttx/nx/nxconsole.h>
|
|
|
|
#include "nxcon_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Function Prototypes
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxcon_unregister
|
|
*
|
|
* Description:
|
|
* Un-register to NX console device.
|
|
*
|
|
* Input Parameters:
|
|
* handle - A handle previously returned by nx_register, nxtk_register, or
|
|
* nxtool_register.
|
|
*
|
|
* Returned Value:
|
|
* None
|
|
*
|
|
****************************************************************************/
|
|
|
|
void nxcon_unregister(NXCONSOLE handle)
|
|
{
|
|
FAR struct nxcon_state_s *priv;
|
|
char devname[NX_DEVNAME_SIZE];
|
|
int i;
|
|
|
|
DEBUGASSERT(handle);
|
|
|
|
/* Get the reference to the driver structure from the handle */
|
|
|
|
priv = (FAR struct nxcon_state_s *)handle;
|
|
sem_destroy(&priv->exclsem);
|
|
|
|
/* Free all allocated glyph bitmap */
|
|
|
|
for (i = 0; i < CONFIG_NXCONSOLE_CACHESIZE; i++)
|
|
{
|
|
FAR struct nxcon_glyph_s *glyph = &priv->glyph[i];
|
|
if (glyph->bitmap)
|
|
{
|
|
kfree(glyph->bitmap);
|
|
}
|
|
}
|
|
|
|
/* Unregister the driver */
|
|
|
|
snprintf(devname, NX_DEVNAME_SIZE, NX_DEVNAME_FORMAT, priv->minor);
|
|
(void)unregister_driver(devname);
|
|
|
|
/* Free the private data structure */
|
|
|
|
kfree(handle);
|
|
}
|