Function pin_pic_init

components/drivers/pin/dev_pin_dm.c:377–417

}

rt_err_t pin_pic_init(struct rt_device_pin *gpio, int pin_irq)
{
    rt_err_t err;

    if (gpio)
    {
        struct rt_pin_irqchip *irqchip = &gpio->irqchip;
        struct rt_pic *pic = &irqchip->parent;

        irqchip->irq = pin_irq;

        if (!gpio->pin_nr)
        {
            return -RT_EINVAL;
        }

        gpio->legacy_isr = rt_calloc(gpio->pin_nr, sizeof(*gpio->legacy_isr));

        if (!gpio->legacy_isr)
        {
            return -RT_ENOMEM;
        }

        pic->priv_data = gpio;
        pic->ops = &pin_dm_ops;
        /* Make sure the type of gpio for pic */
        gpio->parent.parent.type = RT_Object_Class_Device;
        rt_pic_default_name(&irqchip->parent);

        err = rt_pic_linear_irq(pic, gpio->pin_nr);
        rt_pic_user_extends(pic);

        err = RT_EOK;
    }
    else
    {
        err = -RT_EINVAL;
    }

    return err;
}

rt_ssize_t rt_pin_get_named_pin(struct rt_device *dev, const char *propname, int index,
        rt_uint8_t *out_mode, rt_uint8_t *out_value)