forked from forks/qmk_firmware
49 lines
1.6 KiB
C
49 lines
1.6 KiB
C
/* Copyright 2021 QMK
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <ch.h>
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static __inline__ uint8_t __interrupt_disable__(void) {
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chSysLock();
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return 1;
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}
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static __inline__ void __interrupt_enable__(const uint8_t *__s) {
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chSysUnlock();
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__asm__ volatile("" ::: "memory");
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(void)__s;
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}
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static __inline__ syssts_t __interrupt_lock__(void) {
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return chSysGetStatusAndLockX();
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}
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static __inline__ void __interrupt_unlock__(const syssts_t *__s) {
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chSysRestoreStatusX(*__s);
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__asm__ volatile("" ::: "memory");
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}
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#define ATOMIC_BLOCK(type) for (type, __ToDo = 1; __ToDo; __ToDo = 0)
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#define ATOMIC_FORCEON uint8_t status_save __attribute__((__cleanup__(__interrupt_enable__))) = __interrupt_disable__()
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#define ATOMIC_RESTORESTATE syssts_t status_save __attribute__((__cleanup__(__interrupt_unlock__))) = __interrupt_lock__()
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#define ATOMIC_BLOCK_RESTORESTATE ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
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#define ATOMIC_BLOCK_FORCEON ATOMIC_BLOCK(ATOMIC_FORCEON)
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