esp-idf/components/tinyusb/port/common/include/descriptors_control.h

// 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.

#pragma once

#include <string.h>
#include "usb_descriptors.h"


/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
 * Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
 *
 * Auto ProductID layout's Bitmap:
 *   [MSB]         HID | MSC | CDC          [LSB]
 */
#define EPNUM_MSC 0x03

#ifdef __cplusplus
extern "C" {
#endif
//------------- HID Report Descriptor -------------//
#if CFG_TUD_HID
enum {
    REPORT_ID_KEYBOARD = 1,
    REPORT_ID_MOUSE
};
#endif

//------------- Configuration Descriptor -------------//
enum {
#   if CFG_TUD_CDC
    ITF_NUM_CDC = 0,
    ITF_NUM_CDC_DATA,
#   endif

#   if CFG_TUD_MSC
    ITF_NUM_MSC,
#   endif

#   if CFG_TUD_HID
    ITF_NUM_HID,
#   endif

    ITF_NUM_TOTAL
};

enum {
    CONFIG_TOTAL_LEN = TUD_CONFIG_DESC_LEN + CFG_TUD_CDC * TUD_CDC_DESC_LEN + CFG_TUD_MSC * TUD_MSC_DESC_LEN +
                       CFG_TUD_HID * TUD_HID_DESC_LEN
};

bool tusb_desc_set;
void tusb_set_descriptor(tusb_desc_device_t *desc, char **str_desc);
tusb_desc_device_t *tusb_get_active_desc(void);
char **tusb_get_active_str_desc(void);
void tusb_clear_descriptor(void);

#ifdef __cplusplus
}
#endif