src/main/drivers/serial_usb_vcp_at32f43x.h

   1 /*
   2  * This file is part of Cleanflight.
   3  *
   4  * Cleanflight is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * Cleanflight is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with Cleanflight.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #pragma once
  19
  20 typedef struct {
  21     serialPort_t port;
  22
  23     // Buffer used during bulk writes.
  24     uint8_t txBuf[20];
  25     uint8_t txAt;
  26     // Set if the port is in bulk write mode and can buffer.
  27     bool buffering;
  28 } vcpPort_t;
  29
  30 #define APP_TX_DATA_SIZE 2048
  31 #define APP_TX_BLOCK_SIZE 512
  32
  33 volatile uint8_t UserTxBuffer[APP_TX_DATA_SIZE];/* Received Data over UART (CDC interface) are stored in this buffer */
  34 uint32_t BuffLength;
  35 volatile uint32_t UserTxBufPtrIn = 0;/* Increment this pointer or roll it back to
  36                                start address when data are received over USART */
  37 volatile uint32_t UserTxBufPtrOut = 0; /* Increment this pointer or roll it back to
  38                                  start address when data are sent over USB */
  39 tmr_type * usbTxTmr= TMR20;
  40 #define  CDC_POLLING_INTERVAL 50
  41
  42 /*
  43     APP RX is the circular buffer for data that is transmitted from the APP (host)
  44     to the USB device (flight controller).
  45 */
  46 #define APP_RX_DATA_SIZE  2048
  47 static uint8_t APP_Rx_Buffer[APP_RX_DATA_SIZE]; //rx buffer,convert usb read to the usbvcpRead
  48 static uint32_t APP_Rx_ptr_out = 0; //serail read out, back pointer
  49 static uint32_t APP_Rx_ptr_in = 0; //usb Read in, front pointer
  50
  51 void usbVcpInitHardware(void);
  52 serialPort_t *usbVcpOpen(void);
  53 struct serialPort_s;
  54 uint32_t usbVcpGetBaudRate(struct serialPort_s *instance);
  55