1 files changed, 144 insertions, 0 deletions
diff --git a/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Virtual_COM_Port/src/usb_endp.c b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Virtual_COM_Port/src/usb_endp.c
new file mode 100644
index 0000000..b662cfe
--- /dev/null
+++ b/thirdparty/STM32_USB-FS-Device_Lib_V4.0.0/Projects/Virtual_COM_Port/src/usb_endp.c
@@ -0,0 +1,144 @@
+/**
+  ******************************************************************************
+  * @file    usb_endp.c
+  * @author  MCD Application Team
+  * @version V4.0.0
+  * @date    21-January-2013
+  * @brief   Endpoint routines
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT 2013 STMicroelectronics</center></h2>
+  *
+  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
+  * You may not use this file except in compliance with the License.
+  * You may obtain a copy of the License at:
+  *
+  *        http://www.st.com/software_license_agreement_liberty_v2
+  *
+  * Unless required by applicable law or agreed to in writing, software 
+  * distributed under the License is distributed on an "AS IS" BASIS, 
+  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  * See the License for the specific language governing permissions and
+  * limitations under the License.
+  *
+  ******************************************************************************
+  */
+
+
+/* Includes ------------------------------------------------------------------*/
+#include "usb_lib.h"
+#include "usb_desc.h"
+#include "usb_mem.h"
+#include "hw_config.h"
+#include "usb_istr.h"
+#include "usb_pwr.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+
+/* Interval between sending IN packets in frame number (1 frame = 1ms) */
+#define VCOMPORT_IN_FRAME_INTERVAL             5
+
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+uint8_t USB_Rx_Buffer[VIRTUAL_COM_PORT_DATA_SIZE];
+extern  uint8_t USART_Rx_Buffer[];
+extern uint32_t USART_Rx_ptr_out;
+extern uint32_t USART_Rx_length;
+extern uint8_t  USB_Tx_State;
+
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/*******************************************************************************
+* Function Name  : EP1_IN_Callback
+* Description    :
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+void EP1_IN_Callback (void)
+{
+  uint16_t USB_Tx_ptr;
+  uint16_t USB_Tx_length;
+  
+  if (USB_Tx_State == 1)
+  {
+    if (USART_Rx_length == 0) 
+    {
+      USB_Tx_State = 0;
+    }
+    else 
+    {
+      if (USART_Rx_length > VIRTUAL_COM_PORT_DATA_SIZE){
+        USB_Tx_ptr = USART_Rx_ptr_out;
+        USB_Tx_length = VIRTUAL_COM_PORT_DATA_SIZE;
+        
+        USART_Rx_ptr_out += VIRTUAL_COM_PORT_DATA_SIZE;
+        USART_Rx_length -= VIRTUAL_COM_PORT_DATA_SIZE;    
+      }
+      else 
+      {
+        USB_Tx_ptr = USART_Rx_ptr_out;
+        USB_Tx_length = USART_Rx_length;
+        
+        USART_Rx_ptr_out += USART_Rx_length;
+        USART_Rx_length = 0;
+      }
+      UserToPMABufferCopy(&USART_Rx_Buffer[USB_Tx_ptr], ENDP1_TXADDR, USB_Tx_length);
+      SetEPTxCount(ENDP1, USB_Tx_length);
+      SetEPTxValid(ENDP1); 
+    }
+  }
+}
+
+/*******************************************************************************
+* Function Name  : EP3_OUT_Callback
+* Description    :
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+void EP3_OUT_Callback(void)
+{
+  uint16_t USB_Rx_Cnt;
+  
+  /* Get the received data buffer and update the counter */
+  USB_Rx_Cnt = USB_SIL_Read(EP3_OUT, USB_Rx_Buffer);
+  
+  /* USB data will be immediately processed, this allow next USB traffic being 
+  NAKed till the end of the USART Xfer */
+  
+  USB_To_USART_Send_Data(USB_Rx_Buffer, USB_Rx_Cnt);
+ 
+  /* Enable the receive of data on EP3 */
+  SetEPRxValid(ENDP3);
+}
+
+
+/*******************************************************************************
+* Function Name  : SOF_Callback / INTR_SOFINTR_Callback
+* Description    :
+* Input          : None.
+* Output         : None.
+* Return         : None.
+*******************************************************************************/
+void SOF_Callback(void)
+{
+  static uint32_t FrameCount = 0;
+  
+  if(bDeviceState == CONFIGURED)
+  {
+    if (FrameCount++ == VCOMPORT_IN_FRAME_INTERVAL)
+    {
+      /* Reset the frame counter */
+      FrameCount = 0;
+      
+      /* Check the data to be sent through IN pipe */
+      Handle_USBAsynchXfer();
+    }
+  }  
+}
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+