33 lines
896 B
C
33 lines
896 B
C
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/***************************************************************************
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* Copyright (c) 2024 Microsoft Corporation
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*
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* This program and the accompanying materials are made available under the
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* terms of the MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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**************************************************************************/
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#ifndef RISCV_HWTIMER_H
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#define RISCV_HWTIMER_H
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#include "platform.h"
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#define TICKNUM_PER_SECOND 32768
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#define TICKNUM_PER_TIMER (TICKNUM_PER_SECOND / 1000)
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static inline int hwtimer_init(void) {
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uint64_t time = get_aclint_mtime(aclint);
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set_aclint_mtimecmp(aclint, time + TICKNUM_PER_TIMER);
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return 0;
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}
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static inline int hwtimer_handler(void) {
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uint64_t time = get_aclint_mtime(aclint);
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set_aclint_mtimecmp(aclint, time + TICKNUM_PER_TIMER);
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return 0;
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}
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#endif
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