/*!
    \file    usbd_conf.h
    \brief   the header file of USB device configuration

    \version 2020-08-01, V3.0.0, firmware for GD32F4xx
    \version 2022-03-09, V3.1.0, firmware for GD32F4xx
    \version 2022-06-30, V3.2.0, firmware for GD32F4xx
*/

/*
    Copyright (c) 2022, GigaDevice Semiconductor Inc.

    Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

    1. Redistributions of source code must retain the above copyright notice, this 
       list of conditions and the following disclaimer.
    2. Redistributions in binary form must reproduce the above copyright notice, 
       this list of conditions and the following disclaimer in the documentation 
       and/or other materials provided with the distribution.
    3. Neither the name of the copyright holder nor the names of its contributors 
       may be used to endorse or promote products derived from this software without 
       specific prior written permission.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
OF SUCH DAMAGE.
*/

#ifndef __USBD_CONF_H
#define __USBD_CONF_H

#include "usb_conf.h"

#define USBD_CFG_MAX_NUM                    1
#define USBD_ITF_MAX_NUM                    1

#define CDC_COM_INTERFACE                   0

#define USB_STR_DESC_MAX_SIZE               255

#define CDC_DATA_IN_EP                      EP1_IN  /* EP1 for data IN */
#define CDC_DATA_OUT_EP                     EP3_OUT /* EP3 for data OUT */
#define CDC_CMD_EP                          EP2_IN  /* EP2 for CDC commands */

#define USB_STRING_COUNT                    4

#define USB_CDC_CMD_PACKET_SIZE             8    /* Control Endpoint Packet size */

#define APP_RX_DATA_SIZE                    2048 /* Total size of IN buffer: 
                                                    APP_RX_DATA_SIZE*8 / MAX_BAUDARATE * 1000 should be > CDC_IN_FRAME_INTERVAL*8 */

/* CDC endpoints parameters: you can fine tune these values depending on the needed baud rate and performance */
#ifdef USE_USB_HS
    #ifdef USE_ULPI_PHY
        #define USB_CDC_DATA_PACKET_SIZE        512  /* Endpoint IN & OUT Packet size */
        #define CDC_IN_FRAME_INTERVAL           40   /* Number of micro-frames between IN transfers */
    #else
        #define USB_CDC_DATA_PACKET_SIZE        64   /* Endpoint IN & OUT Packet size */
        #define CDC_IN_FRAME_INTERVAL           5    /* Number of frames between IN transfers */
    #endif
#else
    #define USB_CDC_DATA_PACKET_SIZE            64   /* Endpoint IN & OUT Packet size */
    #define CDC_IN_FRAME_INTERVAL               5    /* Number of frames between IN transfers */
#endif /* USE_USB_HS */

#endif /* __USBD_CONF_H */
