Function rt_pic_linear_irq

components/drivers/pic/pic.c:127–168

}

rt_err_t rt_pic_linear_irq(struct rt_pic *pic, rt_size_t irq_nr)
{
    rt_err_t err = RT_EOK;

    if (pic && pic->ops && pic->ops->name)
    {
        rt_ubase_t level = rt_spin_lock_irqsave(&_pic_lock);

        if (_pirq_hash_idx + irq_nr <= RT_ARRAY_SIZE(_pirq_hash))
        {
            rt_list_init(&pic->list);

            rt_pic_default_name(pic);
            pic->parent.type = RT_Object_Class_Unknown;

            pic->irq_start = _pirq_hash_idx;
            pic->irq_nr = irq_nr;
            pic->pirqs = &_pirq_hash[_pirq_hash_idx];

            _pirq_hash_idx += irq_nr;

            append_pic(pic);

            LOG_D("%s alloc irqs ranges [%d, %d]", pic->ops->name,
                    pic->irq_start, pic->irq_start + pic->irq_nr);
        }
        else
        {
            LOG_E("%s alloc %d irqs is overflow", pic->ops->name, irq_nr);

            err = -RT_EEMPTY;
        }

        rt_spin_unlock_irqrestore(&_pic_lock, level);
    }
    else
    {
        err = -RT_EINVAL;
    }

    return err;
}

rt_err_t rt_pic_cancel_irq(struct rt_pic *pic)
{