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28 lines
590 B
C
28 lines
590 B
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "ulp_riscv_lock.h"
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#include "ulp_riscv_lock_shared.h"
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#include <assert.h>
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void ulp_riscv_lock_acquire(ulp_riscv_lock_t *lock)
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{
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assert(lock);
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lock->critical_section_flag_main_cpu = true;
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lock->turn = ULP_RISCV_LOCK_TURN_ULP;
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while (lock->critical_section_flag_ulp && (lock->turn == ULP_RISCV_LOCK_TURN_ULP)) {
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}
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}
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void ulp_riscv_lock_release(ulp_riscv_lock_t *lock)
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{
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assert(lock);
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lock->critical_section_flag_main_cpu = false;
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}
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