mirror of
https://gitee.com/mirrors_PX4/PX4-Autopilot.git
synced 2026-10-17 05:23:34 +08:00
Add logic so that a RAM log can be used in place of a console device
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4380 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
@@ -0,0 +1,151 @@
|
||||
/****************************************************************************
|
||||
* include/nuttx/ramlog.h
|
||||
* The RAM logging driver
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
****************************************************************************/
|
||||
/* The RAM logging driver is a driver that was intended to support debugging
|
||||
* output (syslogging) when the normal serial output is not available. For
|
||||
* example, if you are using a telnet or USB serial console, the debug
|
||||
* output will get lost.
|
||||
*
|
||||
* The RAM logging driver is similar to a pipe in that it saves the
|
||||
* debugging output in a FIFO in RAM. It differs from a pipe in numerous
|
||||
* details as needed to support logging.
|
||||
*
|
||||
* This driver is built when CONFIG_RAMLOG is defined in the Nuttx
|
||||
* configuration.
|
||||
*/
|
||||
|
||||
#ifndef __INCLUDE_NUTTX_RAMLOG_H
|
||||
#define __INCLUDE_NUTTX_RAMLOG_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#ifdef CONFIG_RAMLOG
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-Processor Definitions
|
||||
****************************************************************************/
|
||||
/* Configuration ************************************************************/
|
||||
/* CONFIG_RAMLOG - Enables the RAM logging feature
|
||||
* CONFIG_RAMLOG_CONSOLE - Use the RAM logging device as a system console.
|
||||
* CONFIG_RAMLOG_SYSLOG - Use the RAM logging device for the syslogging
|
||||
* interface. This should have:
|
||||
* CONFIG_SYSLOG=ramlog
|
||||
* CONFIG_RAMLOG_NPOLLWAITERS - The number of threads than can be waiting
|
||||
* for this driver on poll(). Default: 4
|
||||
*
|
||||
* If CONFIG_RAMLOG_CONSOLE is selected, then the following may also be
|
||||
* provided:
|
||||
*
|
||||
* CONFIG_RAMLOG_CONSOLE_BUFSIZE - Size of the console RAM log. Default: 1024
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_RAMLOG_NPOLLWAITERS
|
||||
# define CONFIG_RAMLOG_NPOLLWAITERS 4
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_SYSLOG
|
||||
# undef CONFIG_RAMLOG_SYSLOG
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
/****************************************************************************
|
||||
* Name: ramlog_register
|
||||
*
|
||||
* Description:
|
||||
* Create the RAM logging device and register it at the specified path.
|
||||
* Mostly likely this path will be /dev/console
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN int ramlog_register(FAR const char *devpath, FAR char *buffer,
|
||||
size_t buflen);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: ramlog_consoleinit
|
||||
*
|
||||
* Description:
|
||||
* Create the RAM logging device and register it at the specified path.
|
||||
* Mostly likely this path will be /dev/console
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_RAMLOG_CONSOLE
|
||||
EXTERN int ramlog_consoleinit(void)
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
* Name: ramlog
|
||||
*
|
||||
* Description:
|
||||
* This is the low-level system logging interface. The debugging/syslogging
|
||||
* interfaces are lib_rawprintf() and lib_lowprinf(). The difference is
|
||||
* the lib_rawprintf() writes to fd=1 (stdout) and lib_lowprintf() uses
|
||||
* a lower level interface that works from interrupt handlers. This
|
||||
* function is a a low-level interface used to implement lib_lowprintf()
|
||||
* when CONFIG_RAMLOG_SYSLOG=y and CONFIG_SYSLOG=ramlog
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_RAMLOG_SYSLOG
|
||||
# warning "Missing logic"
|
||||
#endif
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* CONFIG_RAMLOG */
|
||||
#endif /* __INCLUDE_NUTTX_RAMLOG_H */
|
||||
@@ -54,8 +54,8 @@
|
||||
|
||||
/* Maximum number of threads than can be waiting for POLL events */
|
||||
|
||||
#ifndef CONFIG_DEV_CONSOLE_NPOLLWAITERS
|
||||
# define CONFIG_DEV_CONSOLE_NPOLLWAITERS 2
|
||||
#ifndef CONFIG_SERIAL_NPOLLWAITERS
|
||||
# define CONFIG_SERIAL_NPOLLWAITERS 2
|
||||
#endif
|
||||
|
||||
/* vtable access helpers */
|
||||
@@ -211,7 +211,7 @@ struct uart_dev_s
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_DISABLE_POLL
|
||||
struct pollfd *fds[CONFIG_DEV_CONSOLE_NPOLLWAITERS];
|
||||
struct pollfd *fds[CONFIG_SERIAL_NPOLLWAITERS];
|
||||
#endif
|
||||
|
||||
};
|
||||
|
||||
Reference in New Issue
Block a user