// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "tinyusb.h"
#include "hal/usb_hal.h"

/**
 * @brief Initializes the tinyUSB driver.
 *
 * Note: Do not change any Custom descriptor, but
 * if it used it is recomended to define: bDeviceClass = TUSB_CLASS_MISC,
 * bDeviceSubClass = MISC_SUBCLASS_COMMON and bDeviceClass = TUSB_CLASS_MISC
 * to match with Interface Association Descriptor (IAD) for CDC
 *
 * @param config if equal to NULL the default descriptor will be used
 * @return esp_err_t Errors during the initialization
 */
esp_err_t tinyusb_driver_install(const tinyusb_config_t *config)
{
    tusb_desc_device_t *descriptor;
    char **string_descriptor;

    // Hal init
    usb_hal_context_t hal = {
        .use_external_phy = config->external_phy
    };
    usb_hal_init(&hal);

    if (config->descriptor == NULL) {
        descriptor = &descriptor_kconfig;
    } else {
        descriptor = config->descriptor;
    }


    if (config->string_descriptor == NULL) {
        string_descriptor = descriptor_str_kconfig;
    } else {
        string_descriptor = config->string_descriptor;
    }

    tusb_set_descriptor(descriptor,
                        string_descriptor);

    ESP_ERROR_CHECK(tusb_init());
    return ESP_OK;
}