forked from Archive/PX4-Autopilot
63 lines
2.4 KiB
C++
63 lines
2.4 KiB
C++
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/****************************************************************************
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*
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* Copyright (C) 2020 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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#include <px4_platform_common/external_reset_lockout.h>
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#if defined(BOARD_INDICATE_EXTERNAL_LOCKOUT_STATE)
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#include <px4_platform_common/atomic.h>
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static px4::atomic<uint8_t> lockout_states {0};
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void px4_indicate_external_reset_lockout(LockoutComponent component, bool enabled)
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{
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const uint8_t component_mask = 1 << (uint8_t)component;
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uint8_t current_state;
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if (enabled) {
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current_state = lockout_states.fetch_or(component_mask) | component_mask;
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} else {
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current_state = lockout_states.fetch_and(~component_mask) & ~component_mask;
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}
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BOARD_INDICATE_EXTERNAL_LOCKOUT_STATE(current_state != 0);
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}
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#else
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void px4_indicate_external_reset_lockout(LockoutComponent component, bool enabled) {}
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#endif /* BOARD_INDICATE_EXTERNAL_LOCKOUT_STATE */
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