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bc872822bc
- Instead we disable interrups on Nuttx where needed - No lock is held during param export. Params can be changed concurrently and we rely on the fact that another export will be triggered in that case.
73 lines
2.8 KiB
C
73 lines
2.8 KiB
C
/****************************************************************************
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*
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* Copyright (c) 2015 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file param.h
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*
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* Global flash based parameter store.
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*
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* This provides the mechanisms to interface to the PX4
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* parameter system but replace the IO with non file based flash
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* i/o routines. So that the code my be implemented on a SMALL memory
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* foot print device.
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*
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*/
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#ifndef _SYSTEMLIB_FLASHPARAMS_FLASHPARAMS_H
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#define _SYSTEMLIB_FLASHPARAMS_FLASHPARAMS_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <sys/types.h>
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#include "../DynamicSparseLayer.h"
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__BEGIN_DECLS
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/*
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* When using the flash based parameter store we have to force
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* the param_values and 2 functions to be global
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*/
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__EXPORT extern DynamicSparseLayer user_config;
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__EXPORT int param_set_external(param_t param, const void *val, bool mark_saved, bool notify_changes);
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__EXPORT void param_get_external(param_t param, void *val);
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/* The interface hooks to the Flash based storage. The caller is responsible for locking */
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__EXPORT int flash_param_save(param_filter_func filter);
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__EXPORT int flash_param_load();
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__EXPORT int flash_param_import();
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__END_DECLS
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#endif /* _SYSTEMLIB_FLASHPARAMS_FLASHPARAMS_H */
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