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#include <stdio.h>
#include <csr.h>
#include <sbi.h>
#include <timex.h>
#include <irqflags.h>
#include <debug.h>
#include <clint.h>

void awos_arch_tick_increase(void);

/* 24M HZ */
static unsigned long delta = 24000000 / CONFIG_HZ;

void system_tick_init(void)
{
#ifdef CONFIG_RV_MACHINE_MODE
    csr_set(mie, MIE_MTIE);
    clint_timer_event_start(get_cycles64() + delta);
#else
    csr_set(sie, SIE_STIE);
    sbi_set_timer(get_cycles64() + delta);
#endif
}

void riscv_timer_interrupt(void)
{
#ifdef CONFIG_RV_MACHINE_MODE
    csr_clear(mie, MIE_MTIE);

    awos_arch_tick_increase();

    clint_timer_event_start(get_cycles64() + delta);
    csr_set(mie, MIE_MTIE);

#else
    csr_clear(sie, SIE_STIE);

    awos_arch_tick_increase();

    sbi_set_timer(get_cycles64() + delta);
    csr_set(sie, SIE_STIE);
#endif
}