incubator-nuttx/drivers/syslog/syslog_console.c

140 lines
5.2 KiB
C

/****************************************************************************
* drivers/syslog/syslog_console.c
*
* Copyright (C) 2015 Pierre-noel Bouteville. All rights reserved.
* Author: Pierre-noel Bouteville <pnb990@gmail.com>
*
* 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 <errno.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/fs/fs.h>
#include <nuttx/syslog/syslog.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* The architecture must provide syslog_putc for this driver */
#if defined(CONFIG_SYSLOG)
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static ssize_t syslog_console_read(FAR struct file *filep, FAR char *buffer,
size_t buflen);
static ssize_t syslog_console_write(FAR struct file *filep,
FAR const char *buffer, size_t buflen);
static int syslog_console_ioctl(FAR struct file *filep, int cmd,
unsigned long arg);
/****************************************************************************
* Private Variables
****************************************************************************/
static const struct file_operations g_consoleops =
{
0, /* open */
0, /* close */
syslog_console_read, /* read */
syslog_console_write, /* write */
0, /* seek */
syslog_console_ioctl /* ioctl */
#ifndef CONFIG_DISABLE_POLL
, 0 /* poll */
#endif
};
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: syslog_console_ioctl
****************************************************************************/
static int syslog_console_ioctl(FAR struct file *filep, int cmd,
unsigned long arg)
{
return -ENOTTY;
}
/****************************************************************************
* Name: syslog_console_read
****************************************************************************/
static ssize_t syslog_console_read(FAR struct file *filep, FAR char *buffer,
size_t buflen)
{
return 0;
}
/****************************************************************************
* Name: syslog_console_write
****************************************************************************/
static ssize_t syslog_console_write(FAR struct file *filep,
FAR const char *buffer, size_t buflen)
{
ssize_t ret = buflen;
for (; buflen; buflen--)
{
syslog_putc(*buffer++);
}
return ret;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: syslog_console_init
****************************************************************************/
void syslog_console_init(void)
{
(void)register_driver("/dev/console", &g_consoleops, 0666, NULL);
}
#endif /* CONFIG_SYSLOG */