QDAC-firmware/libraries/zf_driver/zf_driver_usb_cdc.c

/*********************************************************************************************************************
* CH32V307VCT6 Opensourec Library <EFBFBD><EFBFBD><EFBFBD><EFBFBD>CH32V307VCT6 <EFBFBD><EFBFBD>Դ<EFBFBD>⣩<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڹٷ<EFBFBD> SDK <EFBFBD>ӿڵĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Դ<EFBFBD><EFBFBD>
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*
* <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>          zf_driver_usb_cdc
* <EFBFBD><EFBFBD>˾<EFBFBD><EFBFBD><EFBFBD><EFBFBD>          <EFBFBD>ɶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɿƼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>޹<EFBFBD>˾
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>          MounRiver Studio V1.8.1
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ̨          CH32V307VCT6
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>          https://seekfree.taobao.com/
*
* <EFBFBD>޸ļ<EFBFBD>¼
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>                                      <EFBFBD><EFBFBD><EFBFBD><EFBFBD>                             <EFBFBD><EFBFBD>ע
* 2022-09-15        <EFBFBD><EFBFBD>W            first version
********************************************************************************************************************/
#include "ch32v30x.h"
#include "zf_driver_delay.h"
#include "zf_driver_usb_cdc.h"



//-------------------------------------------------------------------------------------------------------------------
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>     USB_CDC<44><43><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> <20><>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     *p          Ҫ<><D2AA><EFBFBD>͵<EFBFBD><CDB5><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     length      <20><><EFBFBD>Ͷ<EFBFBD><CDB6>ٸ<EFBFBD><D9B8><EFBFBD><EFBFBD><EFBFBD>( length <20><>ҪС<D2AA><D0A1>64)
// <20><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD>     void
// <20><>ע<EFBFBD><D7A2>Ϣ
//-------------------------------------------------------------------------------------------------------------------
void cdc_send_pack(const uint8 *p, uint32 length)
{
    uint32 i = 0;

    for(i=0; i<length; i++)
    {
       pEP2_IN_DataBuf[i] = p[i];
    }
    DevEP2_IN_Deal(length);

    //<2F>ȴ<EFBFBD><C8B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    while(!(USBOTG_FS->UEP2_TX_CTRL&USBHD_UEP_T_RES1));

    // bUEP_T_RES1 & bUEP_T_RES0: handshake response type for USB endpoint X transmittal (IN)
    // 00: DATA0 or DATA1 then expecting ACK (ready)
    // 01: DATA0 or DATA1 then expecting no response, time out from host, for non-zero endpoint isochronous transactions
    // 10: NAK (busy)
    // 11: TALL (error)
}


//-------------------------------------------------------------------------------------------------------------------
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>     <20><><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD>ݵ<EFBFBD><DDB5><EFBFBD>λ<EFBFBD><CEBB>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     *image          ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     length          <20><><EFBFBD>Ͷ<EFBFBD><CDB6>ٸ<EFBFBD><D9B8><EFBFBD><EFBFBD><EFBFBD>
// <20><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD>     void
// <20><>ע<EFBFBD><D7A2>Ϣ
//-------------------------------------------------------------------------------------------------------------------
void camera_send_image_usb_cdc(const uint8 *image, uint32 length)
{
    uint8 send_buffer[4] = {0x00,0xff,0x01,0x01};
    cdc_send_pack(send_buffer, 4);

    while(length)
    {
        if(length >= 63)
        {
            cdc_send_pack(image, 63);
            image += 63;
            length -= 63;
        }
        else
        {
            cdc_send_pack(image, length);
            length = 0;
        }
    }
}


//-------------------------------------------------------------------------------------------------------------------
// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>     USB<53>豸ȫ<E8B1B8><C8AB><EFBFBD>豸<EFBFBD><E8B1B8>ʼ<EFBFBD><CABC>
// <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>     void          <20><>
// <20><><EFBFBD>ز<EFBFBD><D8B2><EFBFBD>     void
// <20><>ע<EFBFBD><D7A2>Ϣ
//-------------------------------------------------------------------------------------------------------------------
void usb_cdc_init( void )
{
    // <20>˵㻺<CBB5><E3BBBA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><CABC>
    pEP0_RAM_Addr = EP0_DatabufHD;
    pEP1_RAM_Addr = EP1_DatabufHD;
    pEP2_RAM_Addr = EP2_DatabufHD;
    // ʹ<><CAB9>usbʱ<62><CAB1>
    USBOTG_RCC_Init();
    system_delay_ms(100);
    // usb<73>豸<EFBFBD><E8B1B8>ʼ<EFBFBD><CABC>
    USBDeviceInit();
    EXTEN->EXTEN_CTR |= EXTEN_USBD_PU_EN;
    // ʹ<><CAB9>usb<73>ж<EFBFBD>
    NVIC_EnableIRQ(OTG_FS_IRQn);
}