Support for STM32F1 with USB_OTG

Author: makarenya

system/Drivers/STM32F1xx_HAL_Driver/Inc/stm32f1xx_ll_usb.h

@@ -160,6 +160,8 @@ typedef struct
   uint32_t  xfer_len;       /*!< Current transfer length                                                  */
 
   uint32_t  xfer_count;     /*!< Partial transfer length in case of multi packet transfer                 */
+
+  uint16_t  pending;        /*!, Fact, that double buffering transfer have pended data                    */
 }USB_OTG_EPTypeDef;
 
 typedef struct

system/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pcd.c

@@ -110,14 +110,17 @@
 /** @defgroup PCD_Private_Functions PCD Private Functions
   * @{
   */
+
 #if defined (USB_OTG_FS)
 static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t epnum);
 #endif /* USB_OTG_FS */
 
 #if defined (USB)
 static HAL_StatusTypeDef PCD_EP_ISR_Handler(PCD_HandleTypeDef *hpcd);
-static HAL_StatusTypeDef HAL_PCD_EP_ReceiveData(PCD_HandleTypeDef *hpcd, PCD_EPTypeDef* ep)
 #endif /* USB */
+
+static HAL_StatusTypeDef HAL_PCD_EP_ReceiveData(PCD_HandleTypeDef *hpcd, PCD_EPTypeDef* ep);
+
 /**
   * @}
   */
@@ -1180,6 +1183,12 @@ static HAL_StatusTypeDef PCD_WriteEmptyTxFifo(PCD_HandleTypeDef *hpcd, uint32_t
 
   return HAL_OK;
 }
+
+HAL_StatusTypeDef HAL_PCD_EP_ReceiveData(PCD_HandleTypeDef *hpcd, PCD_EPTypeDef* ep)
+{
+  USB_EPStartXfer(hpcd->Instance, ep);
+}
+
 #endif /* USB_OTG_FS */
 
 #if defined (USB)