RISC-V/V203/usb/cdc/usb_desc.cpp

/********************************** (C) COPYRIGHT *******************************
 * File Name          : usb_desc.c
 * Author             : WCH
 * Version            : V1.0.0
 * Date               : 2022/08/20
 * Description        : usb device descriptor,configuration descriptor,
 *                      string descriptors and other descriptors.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for 
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/

#include "usb_desc.h"

/* Device Descriptor */
const uint8_t  MyDevDescr[] =
{
    0x12,       // bLength
    0x01,       // bDescriptorType (Device)
    0x10, 0x01, // bcdUSB 1.10
    0x02,       // bDeviceClass
    0x00,       // bDeviceSubClass
    0x00,       // bDeviceProtocol
    DEF_USBD_UEP0_SIZE,   // bMaxPacketSize0 64
    (uint8_t)DEF_USB_VID, (uint8_t)(DEF_USB_VID >> 8),  // idVendor 0x1A86
    (uint8_t)DEF_USB_PID, (uint8_t)(DEF_USB_PID >> 8),  // idProduct 0x5537
    DEF_IC_PRG_VER, 0x00, // bcdDevice 0.01
    0x01,       // iManufacturer (String Index)
    0x02,       // iProduct (String Index)
    0x03,       // iSerialNumber (String Index)
    0x01,       // bNumConfigurations 1
};

/* Configuration Descriptor */
const uint8_t  MyCfgDescr[] =
{
    /* Configure descriptor */
    0x09, 0x02, 0x43, 0x00, 0x02, 0x01, 0x00, 0x80, 0x32,

    /* Interface 0 (CDC) descriptor */
    0x09, 0x04, 0x00, 0x00, 0x01, 0x02, 0x02, 0x01,  0x00,

    /* Functional Descriptors */
    0x05, 0x24, 0x00, 0x10, 0x01,

    /* Length/management descriptor (data class interface 1) */
    0x05, 0x24, 0x01, 0x00, 0x01,
    0x04, 0x24, 0x02, 0x02,
    0x05, 0x24, 0x06, 0x00, 0x01,

    /* Interrupt upload endpoint descriptor */
    0x07, 0x05, 0x81, 0x03, (uint8_t)DEF_USBD_ENDP1_SIZE, (uint8_t)( DEF_USBD_ENDP1_SIZE >> 8 ), 0x01,

    /* Interface 1 (data interface) descriptor */
    0x09, 0x04, 0x01, 0x00, 0x02, 0x0A, 0x00, 0x00, 0x00,

    /* Endpoint descriptor */
    0x07, 0x05, 0x02, 0x02, (uint8_t)DEF_USBD_ENDP2_SIZE, (uint8_t)( DEF_USBD_ENDP2_SIZE >> 8 ), 0x00,

    /* Endpoint descriptor */
    0x07, 0x05, 0x83, 0x02, (uint8_t)DEF_USBD_ENDP3_SIZE, (uint8_t)( DEF_USBD_ENDP3_SIZE >> 8 ), 0x00,
};
#define USB_DTYPE_STRING 3u
/* Language Descriptor */
const uint8_t  MyLangDescr[] = {
    0x04, 0x03, 0x09, 0x04
};
template<const unsigned N> struct w_text {
  uint8_t       len, typ;
  const char16_t str [N];
}__attribute__((packed));

#define WSTR1 (u"Kizarm Labs.")
#define WSTR2 (u"USB <=> USART")
#define WSTR3 (u"0001")

static const w_text<(sizeof WSTR1 >> 1u)> str_1 = {sizeof (str_1) - 2u, USB_DTYPE_STRING, {WSTR1}};
static const w_text<(sizeof WSTR2 >> 1u)> str_2 = {sizeof (str_2) - 2u, USB_DTYPE_STRING, {WSTR2}};
static const w_text<(sizeof WSTR3 >> 1u)> str_3 = {sizeof (str_3) - 2u, USB_DTYPE_STRING, {WSTR3}};

const uint8_t * MyManuInfo   = reinterpret_cast<const uint8_t*> (&str_1);
const uint8_t * MyProdInfo   = reinterpret_cast<const uint8_t*> (&str_2);
const uint8_t * MySerNumInfo = reinterpret_cast<const uint8_t*> (&str_3);