nuttx/drivers/syslog/syslog_initialize.c

108 lines
3.7 KiB
C

/****************************************************************************
* drivers/syslog/syslog_initialize.c
*
* Copyright (C) 2016 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 <nuttx/syslog/syslog.h>
#include "syslog.h"
#ifndef CONFIG_ARCH_SYSLOG
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: syslog_initialize
*
* Description:
* One power up, the SYSLOG facility is non-existent or limited to very
* low-level output. This function is called later in the initialization
* sequence after full driver support has been initialized. It installs
* the configured SYSLOG drivers and enables full SYSLOGing capability.
*
* This function performs these basic operations:
*
* - Initialize the SYSLOG device
* - Call syslog_channel() to begin using that device.
*
* If CONFIG_ARCH_SYSLOG is selected, then the architecture-specifica
* logic will provide its own SYSLOG device initialize which must include
* as a minimum a call to syslog_channel() to use the device.
*
* Input Parameters:
* None
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure.
*
****************************************************************************/
int syslog_initialize(void)
{
int ret;
/* Not much to this yet... more is coming */
#if defined(CONFIG_SYSLOG_CHAR)
/* Enable use of a character device as the SYSLOG device */
ret = syslog_dev_initialize();
#elif defined(CONFIG_RAMLOG_SYSLOG)
/* Use the RAMLOG as the SYSLOG device */
ret = ramlog_syslog_initialize();
#else
/* Nothing needs to be done */
ret = 0;
#endif
return ret;
}
#endif /* CONFIG_ARCH_SYSLOG */