Function rt_mbox_controller_register

components/drivers/mailbox/mailbox.c:28–73

static void mbox_chan_timeout(void *param);

rt_err_t rt_mbox_controller_register(struct rt_mbox_controller *ctrl)
{
    int len;
    struct rt_mbox_chan *chan;
    char timer_name[RT_NAME_MAX];

    if (!ctrl || !ctrl->dev || !ctrl->ops || !ctrl->num_chans)
    {
        return -RT_EINVAL;
    }

    ctrl->chans = rt_calloc(ctrl->num_chans, sizeof(struct rt_mbox_chan));

    if (!ctrl->chans)
    {
        return -RT_ENOMEM;
    }

    len = rt_snprintf(timer_name, sizeof(timer_name), "%s-",
            rt_dm_dev_get_name(ctrl->dev));

    RT_ASSERT(len < sizeof(timer_name));

    chan = &ctrl->chans[0];

    for (int i = 0; i < ctrl->num_chans; ++i, ++chan)
    {
        chan->ctrl = ctrl;
        rt_spin_lock_init(&chan->lock);

        rt_snprintf(&timer_name[len], sizeof(timer_name) - len, "%d", i);
        rt_timer_init(&chan->timer, timer_name, mbox_chan_timeout, chan,
                0, RT_TIMER_FLAG_ONE_SHOT);
    }

    rt_list_init(&ctrl->list);
    rt_dm_dev_bind_fwdata(ctrl->dev, RT_NULL, ctrl);

    rt_spin_lock(&mbox_ops_lock);

    rt_list_insert_after(&mbox_nodes, &ctrl->list);

    rt_spin_unlock(&mbox_ops_lock);

    return RT_EOK;
}

rt_err_t rt_mbox_controller_unregister(struct rt_mbox_controller *ctrl)
{