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/***************************************************************************
* Copyright (c) 2025 10xEngineers
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
#include "tx_port.h"
#include "csr.h"
#include "hwtimer.h"
#define CLINT (0x02000000L)
#define CLINT_TIME (CLINT+0xBFF8)
#define CLINT_TIMECMP(hart_id) (CLINT+0x4000+8*(hart_id))
int hwtimer_init(void)
{
int hart = riscv_get_core();
uint64_t time = *((uint64_t*)CLINT_TIME);
*((uint64_t*)CLINT_TIMECMP(hart)) = time + TICKNUM_PER_TIMER;
return 0;
}
int hwtimer_handler(void)
{
int hart = riscv_get_core();
uint64_t time = *((uint64_t*)CLINT_TIME);
*((uint64_t*)CLINT_TIMECMP(hart)) = time + TICKNUM_PER_TIMER;
return 0;
}
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