/** @mainpage  cdc_demo_init
  * <table>
  * <tr><th>Project  <td>cdc_demo 
  * <tr><th>Author   <td>LiGuo 1570139720@qq.com 
  * </table>
  * @section   cdc class init demo
  * 
  * -# You can use USB to create a virtual serial port
  * 
  * @section   版本更新历史
  * 
  * 版本|作者|时间|描述
  * ----|----|----|----
  * 1.0|LiGuo|2021.11.19|creat project
  *
  * <h2><center>&copy; Copyright 2021 LiGuo.
  * All rights reserved.</center></h2>
  *********************************************************************************
  */

/* include ------------------------------------------------------------------*/
#include "main.h"
#include "usbd_core.h"
#include "usbd_cdc.h"

/*!< endpoint address */
#define CDC_IN_EP  0x81
#define CDC_OUT_EP 0x01
#define CDC_INT_EP 0x82

#define USBD_VID           0xFFFF
#define USBD_PID           0xFFFF
#define USBD_MAX_POWER     100
#define USBD_LANGID_STRING 1033

/*!< config descriptor size */
#define USB_CONFIG_SIZE (9 + CDC_ACM_DESCRIPTOR_LEN)

/*!< global descriptor */
static const uint8_t cdc_descriptor[] = {
    USB_DEVICE_DESCRIPTOR_INIT(USB_2_0, 0x02, 0x02, 0x01, USBD_VID, USBD_PID, 0x0100, 0x01),
    USB_CONFIG_DESCRIPTOR_INIT(USB_CONFIG_SIZE, 0x02, 0x01, USB_CONFIG_BUS_POWERED, USBD_MAX_POWER),
    CDC_ACM_DESCRIPTOR_INIT(0x00, CDC_INT_EP, CDC_OUT_EP, CDC_IN_EP, 0x02),
    ///////////////////////////////////////
    /// string0 descriptor
    ///////////////////////////////////////
    USB_LANGID_INIT(USBD_LANGID_STRING),
    ///////////////////////////////////////
    /// string1 descriptor
    ///////////////////////////////////////
    0x12,                       /* bLength */
    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
    'B', 0x00,                  /* wcChar0 */
    'o', 0x00,                  /* wcChar1 */
    'u', 0x00,                  /* wcChar2 */
    'f', 0x00,                  /* wcChar3 */
    'f', 0x00,                  /* wcChar4 */
    'a', 0x00,                  /* wcChar5 */
    'l', 0x00,                  /* wcChar6 */
    'o', 0x00,                  /* wcChar7 */
    ///////////////////////////////////////
    /// string2 descriptor
    ///////////////////////////////////////
    0x24,                       /* bLength */
    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
    'B', 0x00,                  /* wcChar0 */
    'o', 0x00,                  /* wcChar1 */
    'u', 0x00,                  /* wcChar2 */
    'f', 0x00,                  /* wcChar3 */
    'f', 0x00,                  /* wcChar4 */
    'a', 0x00,                  /* wcChar5 */
    'l', 0x00,                  /* wcChar6 */
    'o', 0x00,                  /* wcChar7 */
    ' ', 0x00,                  /* wcChar8 */
    'C', 0x00,                  /* wcChar9 */
    'D', 0x00,                  /* wcChar10 */
    'C', 0x00,                  /* wcChar11 */
    ' ', 0x00,                  /* wcChar13 */
    'D', 0x00,                  /* wcChar14 */
    'E', 0x00,                  /* wcChar15 */
    'M', 0x00,                  /* wcChar16 */
    'O', 0x00,                  /* wcChar17 */
    ///////////////////////////////////////
    /// string3 descriptor
    ///////////////////////////////////////
    0x16,                       /* bLength */
    USB_DESCRIPTOR_TYPE_STRING, /* bDescriptorType */
    '2', 0x00,                  /* wcChar0 */
    '0', 0x00,                  /* wcChar1 */
    '2', 0x00,                  /* wcChar2 */
    '1', 0x00,                  /* wcChar3 */
    '0', 0x00,                  /* wcChar4 */
    '3', 0x00,                  /* wcChar5 */
    '1', 0x00,                  /* wcChar6 */
    '0', 0x00,                  /* wcChar7 */
    '0', 0x00,                  /* wcChar8 */
    '0', 0x00,                  /* wcChar9 */
#ifdef CONFIG_USB_HS
    ///////////////////////////////////////
    /// device qualifier descriptor
    ///////////////////////////////////////
    0x0a,
    USB_DESCRIPTOR_TYPE_DEVICE_QUALIFIER,
    0x00,
    0x02,
    0x02,
    0x02,
    0x01,
    0x40,
    0x01,
    0x00,
#endif
    0x00
};
/*!< class */
usbd_class_t cdc_class;
/*!< interface one */
usbd_interface_t cdc_cmd_intf;
/*!< interface two */
usbd_interface_t cdc_data_intf;

/* function ------------------------------------------------------------------*/
void usbd_cdc_acm_out(uint8_t ep)
{
    uint8_t data[64];
    uint32_t read_byte;
    usbd_ep_read(ep, data, 64, &read_byte);
    printf("out\r\n");
    printf("read len:%d\r\n", read_byte);
    usbd_ep_read(ep, NULL, 0, NULL);
}

void usbd_cdc_acm_in(uint8_t ep)
{
    printf("in\r\n");
}

/*!< endpoint call back */
usbd_endpoint_t cdc_out_ep = {
    .ep_addr = CDC_OUT_EP,
    .ep_cb = usbd_cdc_acm_out
};

usbd_endpoint_t cdc_in_ep = {
    .ep_addr = CDC_IN_EP,
    .ep_cb = usbd_cdc_acm_in
};

/* function ------------------------------------------------------------------*/
void cdc_init(void)
{
    usbd_desc_register(cdc_descriptor);
    /*!< add interface */
    usbd_cdc_add_acm_interface(&cdc_class, &cdc_cmd_intf);
    usbd_cdc_add_acm_interface(&cdc_class, &cdc_data_intf);
    /*!< interface add endpoint */
    usbd_interface_add_endpoint(&cdc_data_intf, &cdc_out_ep);
    usbd_interface_add_endpoint(&cdc_data_intf, &cdc_in_ep);
}

void cdc_test(void)
{
    uint8_t data_buffer[10] = { 0x31, 0x32, 0x33, 0x34, 0x35, 0x31, 0x32, 0x33, 0x34, 0x35 };
    usbd_ep_write(CDC_IN_EP, data_buffer, 10, NULL);
    HAL_Delay(500);
}