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/*-
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
* The full GNU General Public License is included in this distribution
* in the file called LICENSE.GPL.
*
* BSD LICENSE
*
* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
*
* 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.
*
* $FreeBSD: release/9.1.0/sys/dev/isci/scil/sci_logger.h 231689 2012-02-14 15:58:49Z jimharris $
*/
#ifndef _SCI_LOGGER_H_
#define _SCI_LOGGER_H_
/**
* @file
*
* @brief This file contains all of the interface methods that can be called
* by an SCI user on the logger object. These methods should be
* utilized to control the amount of information being logged by the
* SCI implementation.
*/
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
#include <dev/isci/scil/sci_types.h>
/* The following is a list of verbosity levels that can be used to enable */
/* logging for specific log objects. */
/** Enable/disable error level logging for the associated logger object(s). */
#define SCI_LOG_VERBOSITY_ERROR 0x00
/** Enable/disable warning level logging for the associated logger object(s). */
#define SCI_LOG_VERBOSITY_WARNING 0x01
/**
* Enable/disable informative level logging for the associated logger object(s).
*/
#define SCI_LOG_VERBOSITY_INFO 0x02
/**
* This constant is used to enable function trace (enter/exit) level
* logging for the associated log object(s).
*/
#define SCI_LOG_VERBOSITY_TRACE 0x03
/**
* This constant is used to enable state tracing information it will emit a
* log message each time a state is entered for the associated log object(s).
*/
#define SCI_LOG_VERBOSITY_STATES 0x04
#ifdef SCI_LOGGING
/**
* @brief This method will return the verbosity levels enabled for the object
* listed in the log_object parameter.
* @note Logging must be enabled at compile time in the driver, otherwise
* calling this method has no affect.
*
* @param[in] logger This parameter specifies the logger for which to
* disable the supplied objects/verbosities. For example,
* the framework and core components have different loggers.
* @param[in] log_object This parameter specifies the log object for which
* to retrieve the associated verbosity levels.
* @note This parameter is not a mask, but rather a discrete
* value.
*
* @return This method will return the verbosity levels enabled for the
* supplied log object.
* @retval SCI_LOGGER_VERBOSITY_ERROR This value indicates that the error
* verbosity level was set for the supplied log_object.
* @retval SCI_LOGGER_VERBOSITY_WARNING This value indicates that the warning
* verbosity level was set for the supplied log_object.
* @retval SCI_LOGGER_VERBOSITY_INFO This value indicates that the
* informational verbosity level was set for the supplied log_object.
* @retval SCI_LOGGER_VERBOSITY_TRACE This value indicates that the trace
* verbosity level was set for the supplied log_object.
* @retval SCI_LOGGER_VERBOSITY_STATES This value indicates that the states
* transition verbosity level was set for the supplied log_object
*/
U8 sci_logger_get_verbosity_mask(
SCI_LOGGER_HANDLE_T logger,
U32 log_object
);
/**
* @brief This method simply returns the log object mask. This mask
* is essentially a list of log objects for which the specified
* level (verbosity) is enabled.
* @note Logging must be enabled at compile time in the driver, otherwise
* calling this method has no affect.
* @note Reserved bits in both the supplied masks shall be ignored.
*
* @param[in] logger This parameter specifies the logger for which to
* disable the supplied objects/verbosities. For example,
* the framework and core components have different loggers.
* @param[in] verbosity This parameter specifies the verbosity for which
* to retrieve the set of enabled log objects. Valid values for
* this parameter are:
* -# SCI_LOGGER_VERBOSITY_ERROR
* -# SCI_LOGGER_VERBOSITY_WARNING
* -# SCI_LOGGER_VERBOSITY_INFO
* -# SCI_LOGGER_VERBOSITY_TRACE
* -# SCI_LOGGER_VERBOSITY_STATES
* @note This parameter is not a mask, but rather a discrete
* value.
*
* @return This method will return the log object mask indicating each of
* the log objects for which logging is enabled at the supplied level.
*/
U32 sci_logger_get_object_mask(
SCI_LOGGER_HANDLE_T logger,
U8 verbosity
);
/**
* @brief This method will enable each of the supplied log objects in
* log_object_mask for each of the supplied verbosities in
* verbosity_mask. To enable all logging, simply set all bits in
* both the log_object_mask and verbosity_mask.
* @note Logging must be enabled at compile time in the driver, otherwise
* calling this method has no affect.
* @note Reserved bits in both the supplied masks shall be ignored.
*
* @param[in] logger This parameter specifies the logger for which to
* disable the supplied objects/verbosities. For example,
* the framework and core components have different loggers.
* @param[in] log_object_mask This parameter specifies the log objects for
* which to enable logging.
* @param[in] verbosity_mask This parameter specifies the verbosity levels
* at which to enable each log_object.
*
* @return none
*/
void sci_logger_enable(
SCI_LOGGER_HANDLE_T logger,
U32 log_object_mask,
U8 verbosity_mask
);
/**
* @brief This method will disable each of the supplied log objects in
* log_object_mask for each of the supplied verbosities in
* verbosity_mask. To disable all logging, simply set all bits in
* both the log_object_mask and verbosity_mask.
* @note Logging must be enabled at compile time in the driver, otherwise
* calling this method has no affect.
* @note Reserved bits in both the supplied masks shall be ignored.
*
* @param[in] logger This parameter specifies the logger for which to
* disable the supplied objects/verbosities. For example,
* the framework and core components have different loggers.
* @param[in] log_object_mask This parameter specifies the log objects for
* which to disable logging.
* @param[in] verbosity_mask This parameter specifies the verbosity levels
* at which to disable each log_object.
*
* @return none
*/
void sci_logger_disable(
SCI_LOGGER_HANDLE_T logger,
U32 log_object_mask,
U8 verbosity_mask
);
/**
* @brief this macro checks whether it is ok to log.
*
* @param[in] logger This parameter specifies the logger for
* which to disable the supplied
* objects/verbosities. For example, the framework
* and core components have different loggers.
* @param[in] log_object_mask This parameter specifies the log objects for
* which to disable logging.
* @param[in] verbosity_mask This parameter specifies the verbosity levels
* at which to disable each log_object.
*
* @return TRUE or FALSE
*/
BOOL sci_logger_is_enabled(
SCI_LOGGER_HANDLE_T logger,
U32 log_object_mask,
U8 verbosity_mask
);
#else // SCI_LOGGING
#define sci_logger_get_verbosity_mask(logger, log_object)
#define sci_logger_get_object_mask(logger, verbosity)
#define sci_logger_enable(logger, log_object_mask, verbosity_mask)
#define sci_logger_disable(logger, log_object_mask, verbosity_mask)
#define sci_logger_is_enabled(logger, log_object_mask, verbosity_level)
#endif // SCI_LOGGING
#ifdef __cplusplus
}
#endif // __cplusplus
#endif // _SCI_LOGGER_H_