Function sdio_initialize_function

components/drivers/sdio/dev_sdio.c:693–741

}

static rt_int32_t sdio_initialize_function(struct rt_mmcsd_card *card,
                                           rt_uint32_t           func_num)
{
    rt_int32_t ret;
    struct rt_sdio_function *func;

    RT_ASSERT(func_num <= SDIO_MAX_FUNCTIONS);

    func = rt_malloc(sizeof(struct rt_sdio_function));
    if (!func)
    {
        LOG_E("malloc rt_sdio_function failed");
        ret = -RT_ENOMEM;
        goto err;
    }
    rt_memset(func, 0, sizeof(struct rt_sdio_function));

    func->card = card;
    func->num = func_num;

    ret = sdio_read_fbr(func);
    if (ret)
        goto err1;

    ret = sdio_read_cis(func);
    if (ret)
        goto err1;

    /*
     * product/manufacturer id is optional for function CIS, so
     * copy it from the card structure as needed.
     */
    if (func->product == 0)
    {
        func->manufacturer = card->cis.manufacturer;
        func->product = card->cis.product;
    }

    card->sdio_function[func_num] = func;

    return 0;

err1:
    sdio_free_cis(func);
    rt_free(func);
    card->sdio_function[func_num] = RT_NULL;
err:
    return ret;
}

static rt_int32_t sdio_set_highspeed(struct rt_mmcsd_card *card)
{