#include <sys/cpu.h>
#include <sys/i386_intr.h>
#include <sys/interrupts.h>
#include <sys/x86_isa.h>

#include <hal/intc.h>

#include <lunaix/isrm.h>
#include <lunaix/mm/vmm.h>
#include <lunaix/process.h>
#include <lunaix/sched.h>
#include <lunaix/syslog.h>

LOG_MODULE("INTR")

static inline void
update_thread_context(isr_param* param)
{
    if (!current_thread) {
        return;
    }

    isr_param* ppctx = current_thread->intr_ctx;
    param->execp->saved_prev_ctx = ppctx;
    current_thread->intr_ctx = param;

    if (ppctx) {
        param->depth = ppctx->depth + 1;
    }
}

void
intr_handler(isr_param* param)
{
    update_thread_context(param);

    volatile struct exec_param* execp = param->execp;
    if (execp->vector <= 255) {
        isr_cb subscriber = isrm_get(execp->vector);
        subscriber(param);
        goto done;
    }

    ERROR("INT %u: (%x) [%p: %p] Unknown",
            execp->vector,
            execp->err_code,
            execp->cs,
            execp->eip);

done:

    if (execp->vector > IV_BASE_END) {
        intc_notify_eoi(0, execp->vector);
    }

    return;
}