From aa38e5c1f48e31213ee349aa5cd6f06c85bda70d Mon Sep 17 00:00:00 2001
From: android <android@lingyun.com>
Date: Tue, 25 Jun 2024 21:49:39 +0800
Subject: [PATCH] Add GD32F103RCT6 ADC converter board SDK source code

---
 mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usb.c | 2673 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 2,673 insertions(+), 0 deletions(-)

diff --git a/mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usb.c b/mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usb.c
new file mode 100644
index 0000000..9d34ff9
--- /dev/null
+++ b/mcu_sdk/gd32f103/rk_eFire/Board/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_usb.c
@@ -0,0 +1,2673 @@
+/**
+  ******************************************************************************
+  * @file    stm32f1xx_ll_usb.c
+  * @author  MCD Application Team
+  * @brief   USB Low Layer HAL module driver.
+  *
+  *          This file provides firmware functions to manage the following
+  *          functionalities of the USB Peripheral Controller:
+  *           + Initialization/de-initialization functions
+  *           + I/O operation functions
+  *           + Peripheral Control functions
+  *           + Peripheral State functions
+  *
+  @verbatim
+  ==============================================================================
+                    ##### How to use this driver #####
+  ==============================================================================
+    [..]
+      (#) Fill parameters of Init structure in USB_OTG_CfgTypeDef structure.
+
+      (#) Call USB_CoreInit() API to initialize the USB Core peripheral.
+
+      (#) The upper HAL HCD/PCD driver will call the right routines for its internal processes.
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f1xx_hal.h"
+
+/** @addtogroup STM32F1xx_LL_USB_DRIVER
+  * @{
+  */
+
+#if defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED)
+#if defined (USB) || defined (USB_OTG_FS)
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+#if defined (USB_OTG_FS)
+static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx);
+
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup USB_LL_Exported_Functions USB Low Layer Exported Functions
+  * @{
+  */
+
+/** @defgroup USB_LL_Exported_Functions_Group1 Initialization/de-initialization functions
+  *  @brief    Initialization and Configuration functions
+  *
+@verbatim
+ ===============================================================================
+                      ##### Initialization/de-initialization functions #####
+ ===============================================================================
+
+@endverbatim
+  * @{
+  */
+
+/**
+  * @brief  Initializes the USB Core
+  * @param  USBx USB Instance
+  * @param  cfg pointer to a USB_OTG_CfgTypeDef structure that contains
+  *         the configuration information for the specified USBx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
+{
+  HAL_StatusTypeDef ret;
+
+  if (cfg.phy_itface == USB_OTG_ULPI_PHY)
+  {
+    USBx->GCCFG &= ~(USB_OTG_GCCFG_PWRDWN);
+
+    /* Init The ULPI Interface */
+    USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_TSDPS | USB_OTG_GUSBCFG_ULPIFSLS | USB_OTG_GUSBCFG_PHYSEL);
+
+    /* Select vbus source */
+    USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_ULPIEVBUSD | USB_OTG_GUSBCFG_ULPIEVBUSI);
+    if (cfg.use_external_vbus == 1U)
+    {
+      USBx->GUSBCFG |= USB_OTG_GUSBCFG_ULPIEVBUSD;
+    }
+    /* Reset after a PHY select  */
+    ret = USB_CoreReset(USBx);
+  }
+  else /* FS interface (embedded Phy) */
+  {
+    /* Select FS Embedded PHY */
+    USBx->GUSBCFG |= USB_OTG_GUSBCFG_PHYSEL;
+
+    /* Reset after a PHY select */
+    ret = USB_CoreReset(USBx);
+
+    /* Activate the USB Transceiver */
+    USBx->GCCFG |= USB_OTG_GCCFG_PWRDWN;
+  }
+
+  return ret;
+}
+
+
+/**
+  * @brief  Set the USB turnaround time
+  * @param  USBx USB Instance
+  * @param  hclk: AHB clock frequency
+  * @retval USB turnaround time In PHY Clocks number
+  */
+HAL_StatusTypeDef USB_SetTurnaroundTime(USB_OTG_GlobalTypeDef *USBx,
+                                        uint32_t hclk, uint8_t speed)
+{
+  uint32_t UsbTrd;
+
+  /* The USBTRD is configured according to the tables below, depending on AHB frequency
+  used by application. In the low AHB frequency range it is used to stretch enough the USB response
+  time to IN tokens, the USB turnaround time, so to compensate for the longer AHB read access
+  latency to the Data FIFO */
+  if (speed == USBD_FS_SPEED)
+  {
+    if ((hclk >= 14200000U) && (hclk < 15000000U))
+    {
+      /* hclk Clock Range between 14.2-15 MHz */
+      UsbTrd = 0xFU;
+    }
+    else if ((hclk >= 15000000U) && (hclk < 16000000U))
+    {
+      /* hclk Clock Range between 15-16 MHz */
+      UsbTrd = 0xEU;
+    }
+    else if ((hclk >= 16000000U) && (hclk < 17200000U))
+    {
+      /* hclk Clock Range between 16-17.2 MHz */
+      UsbTrd = 0xDU;
+    }
+    else if ((hclk >= 17200000U) && (hclk < 18500000U))
+    {
+      /* hclk Clock Range between 17.2-18.5 MHz */
+      UsbTrd = 0xCU;
+    }
+    else if ((hclk >= 18500000U) && (hclk < 20000000U))
+    {
+      /* hclk Clock Range between 18.5-20 MHz */
+      UsbTrd = 0xBU;
+    }
+    else if ((hclk >= 20000000U) && (hclk < 21800000U))
+    {
+      /* hclk Clock Range between 20-21.8 MHz */
+      UsbTrd = 0xAU;
+    }
+    else if ((hclk >= 21800000U) && (hclk < 24000000U))
+    {
+      /* hclk Clock Range between 21.8-24 MHz */
+      UsbTrd = 0x9U;
+    }
+    else if ((hclk >= 24000000U) && (hclk < 27700000U))
+    {
+      /* hclk Clock Range between 24-27.7 MHz */
+      UsbTrd = 0x8U;
+    }
+    else if ((hclk >= 27700000U) && (hclk < 32000000U))
+    {
+      /* hclk Clock Range between 27.7-32 MHz */
+      UsbTrd = 0x7U;
+    }
+    else /* if(hclk >= 32000000) */
+    {
+      /* hclk Clock Range between 32-200 MHz */
+      UsbTrd = 0x6U;
+    }
+  }
+  else
+  {
+    UsbTrd = USBD_DEFAULT_TRDT_VALUE;
+  }
+
+  USBx->GUSBCFG &= ~USB_OTG_GUSBCFG_TRDT;
+  USBx->GUSBCFG |= (uint32_t)((UsbTrd << 10) & USB_OTG_GUSBCFG_TRDT);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EnableGlobalInt
+  *         Enables the controller's Global Int in the AHB Config reg
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx)
+{
+  USBx->GAHBCFG |= USB_OTG_GAHBCFG_GINT;
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DisableGlobalInt
+  *         Disable the controller's Global Int in the AHB Config reg
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DisableGlobalInt(USB_OTG_GlobalTypeDef *USBx)
+{
+  USBx->GAHBCFG &= ~USB_OTG_GAHBCFG_GINT;
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_SetCurrentMode Set functional mode
+  * @param  USBx  Selected device
+  * @param  mode  current core mode
+  *          This parameter can be one of these values:
+  *            @arg USB_DEVICE_MODE Peripheral mode
+  *            @arg USB_HOST_MODE Host mode
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_SetCurrentMode(USB_OTG_GlobalTypeDef *USBx, USB_ModeTypeDef mode)
+{
+  USBx->GUSBCFG &= ~(USB_OTG_GUSBCFG_FHMOD | USB_OTG_GUSBCFG_FDMOD);
+
+  if (mode == USB_HOST_MODE)
+  {
+    USBx->GUSBCFG |= USB_OTG_GUSBCFG_FHMOD;
+  }
+  else if (mode == USB_DEVICE_MODE)
+  {
+    USBx->GUSBCFG |= USB_OTG_GUSBCFG_FDMOD;
+  }
+  else
+  {
+    return HAL_ERROR;
+  }
+  HAL_Delay(50U);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DevInit Initializes the USB_OTG controller registers
+  *         for device mode
+  * @param  USBx  Selected device
+  * @param  cfg   pointer to a USB_OTG_CfgTypeDef structure that contains
+  *         the configuration information for the specified USBx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DevInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
+{
+  HAL_StatusTypeDef ret = HAL_OK;
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t i;
+
+  for (i = 0U; i < 15U; i++)
+  {
+    USBx->DIEPTXF[i] = 0U;
+  }
+
+  /* Enable HW VBUS sensing */
+  USBx->GCCFG |= USB_OTG_GCCFG_VBUSBSEN;
+
+  /* Restart the Phy Clock */
+  USBx_PCGCCTL = 0U;
+
+  /* Device mode configuration */
+  USBx_DEVICE->DCFG |= DCFG_FRAME_INTERVAL_80;
+
+  /* Set Core speed to Full speed mode */
+  (void)USB_SetDevSpeed(USBx, USB_OTG_SPEED_FULL);
+
+  /* Flush the FIFOs */
+  if (USB_FlushTxFifo(USBx, 0x10U) != HAL_OK) /* all Tx FIFOs */
+  {
+    ret = HAL_ERROR;
+  }
+
+  if (USB_FlushRxFifo(USBx) != HAL_OK)
+  {
+    ret = HAL_ERROR;
+  }
+
+  /* Clear all pending Device Interrupts */
+  USBx_DEVICE->DIEPMSK = 0U;
+  USBx_DEVICE->DOEPMSK = 0U;
+  USBx_DEVICE->DAINTMSK = 0U;
+
+  for (i = 0U; i < cfg.dev_endpoints; i++)
+  {
+    if ((USBx_INEP(i)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA)
+    {
+      if (i == 0U)
+      {
+        USBx_INEP(i)->DIEPCTL = USB_OTG_DIEPCTL_SNAK;
+      }
+      else
+      {
+        USBx_INEP(i)->DIEPCTL = USB_OTG_DIEPCTL_EPDIS | USB_OTG_DIEPCTL_SNAK;
+      }
+    }
+    else
+    {
+      USBx_INEP(i)->DIEPCTL = 0U;
+    }
+
+    USBx_INEP(i)->DIEPTSIZ = 0U;
+    USBx_INEP(i)->DIEPINT  = 0xFB7FU;
+  }
+
+  for (i = 0U; i < cfg.dev_endpoints; i++)
+  {
+    if ((USBx_OUTEP(i)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
+    {
+      if (i == 0U)
+      {
+        USBx_OUTEP(i)->DOEPCTL = USB_OTG_DOEPCTL_SNAK;
+      }
+      else
+      {
+        USBx_OUTEP(i)->DOEPCTL = USB_OTG_DOEPCTL_EPDIS | USB_OTG_DOEPCTL_SNAK;
+      }
+    }
+    else
+    {
+      USBx_OUTEP(i)->DOEPCTL = 0U;
+    }
+
+    USBx_OUTEP(i)->DOEPTSIZ = 0U;
+    USBx_OUTEP(i)->DOEPINT  = 0xFB7FU;
+  }
+
+  USBx_DEVICE->DIEPMSK &= ~(USB_OTG_DIEPMSK_TXFURM);
+
+  /* Disable all interrupts. */
+  USBx->GINTMSK = 0U;
+
+  /* Clear any pending interrupts */
+  USBx->GINTSTS = 0xBFFFFFFFU;
+
+  /* Enable the common interrupts */
+  USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM;
+
+  /* Enable interrupts matching to the Device mode ONLY */
+  USBx->GINTMSK |= USB_OTG_GINTMSK_USBSUSPM | USB_OTG_GINTMSK_USBRST |
+                   USB_OTG_GINTMSK_ENUMDNEM | USB_OTG_GINTMSK_IEPINT |
+                   USB_OTG_GINTMSK_OEPINT   | USB_OTG_GINTMSK_IISOIXFRM |
+                   USB_OTG_GINTMSK_PXFRM_IISOOXFRM | USB_OTG_GINTMSK_WUIM;
+
+  if (cfg.Sof_enable != 0U)
+  {
+    USBx->GINTMSK |= USB_OTG_GINTMSK_SOFM;
+  }
+
+  if (cfg.vbus_sensing_enable == 1U)
+  {
+    USBx->GINTMSK |= (USB_OTG_GINTMSK_SRQIM | USB_OTG_GINTMSK_OTGINT);
+  }
+
+  return ret;
+}
+
+/**
+  * @brief  USB_OTG_FlushTxFifo : Flush a Tx FIFO
+  * @param  USBx  Selected device
+  * @param  num  FIFO number
+  *         This parameter can be a value from 1 to 15
+            15 means Flush all Tx FIFOs
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_FlushTxFifo(USB_OTG_GlobalTypeDef *USBx, uint32_t num)
+{
+  uint32_t count = 0U;
+
+  USBx->GRSTCTL = (USB_OTG_GRSTCTL_TXFFLSH | (num << 6));
+
+  do
+  {
+    if (++count > 200000U)
+    {
+      return HAL_TIMEOUT;
+    }
+  } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_TXFFLSH) == USB_OTG_GRSTCTL_TXFFLSH);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_FlushRxFifo : Flush Rx FIFO
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_FlushRxFifo(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t count = 0;
+
+  USBx->GRSTCTL = USB_OTG_GRSTCTL_RXFFLSH;
+
+  do
+  {
+    if (++count > 200000U)
+    {
+      return HAL_TIMEOUT;
+    }
+  } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_RXFFLSH) == USB_OTG_GRSTCTL_RXFFLSH);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_SetDevSpeed  Initializes the DevSpd field of DCFG register
+  *         depending the PHY type and the enumeration speed of the device.
+  * @param  USBx  Selected device
+  * @param  speed  device speed
+  *          This parameter can be one of these values:
+  *            @arg USB_OTG_SPEED_FULL: Full speed mode
+  * @retval  Hal status
+  */
+HAL_StatusTypeDef USB_SetDevSpeed(USB_OTG_GlobalTypeDef *USBx, uint8_t speed)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  USBx_DEVICE->DCFG |= speed;
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_GetDevSpeed  Return the Dev Speed
+  * @param  USBx  Selected device
+  * @retval speed  device speed
+  *          This parameter can be one of these values:
+  *            @arg PCD_SPEED_FULL: Full speed mode
+  */
+uint8_t USB_GetDevSpeed(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint8_t speed;
+  uint32_t DevEnumSpeed = USBx_DEVICE->DSTS & USB_OTG_DSTS_ENUMSPD;
+
+  if ((DevEnumSpeed == DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ) ||
+      (DevEnumSpeed == DSTS_ENUMSPD_FS_PHY_48MHZ))
+  {
+    speed = USBD_FS_SPEED;
+  }
+  else
+  {
+    speed = 0xFU;
+  }
+
+  return speed;
+}
+
+/**
+  * @brief  Activate and configure an endpoint
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_ActivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  if (ep->is_in == 1U)
+  {
+    USBx_DEVICE->DAINTMSK |= USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK));
+
+    if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_USBAEP) == 0U)
+    {
+      USBx_INEP(epnum)->DIEPCTL |= (ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ) |
+                                   ((uint32_t)ep->type << 18) | (epnum << 22) |
+                                   USB_OTG_DIEPCTL_SD0PID_SEVNFRM |
+                                   USB_OTG_DIEPCTL_USBAEP;
+    }
+  }
+  else
+  {
+    USBx_DEVICE->DAINTMSK |= USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16);
+
+    if (((USBx_OUTEP(epnum)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0U)
+    {
+      USBx_OUTEP(epnum)->DOEPCTL |= (ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ) |
+                                    ((uint32_t)ep->type << 18) |
+                                    USB_OTG_DIEPCTL_SD0PID_SEVNFRM |
+                                    USB_OTG_DOEPCTL_USBAEP;
+    }
+  }
+  return HAL_OK;
+}
+
+/**
+  * @brief  Activate and configure a dedicated endpoint
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_ActivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  /* Read DEPCTLn register */
+  if (ep->is_in == 1U)
+  {
+    if (((USBx_INEP(epnum)->DIEPCTL) & USB_OTG_DIEPCTL_USBAEP) == 0U)
+    {
+      USBx_INEP(epnum)->DIEPCTL |= (ep->maxpacket & USB_OTG_DIEPCTL_MPSIZ) |
+                                   ((uint32_t)ep->type << 18) | (epnum << 22) |
+                                   USB_OTG_DIEPCTL_SD0PID_SEVNFRM |
+                                   USB_OTG_DIEPCTL_USBAEP;
+    }
+
+    USBx_DEVICE->DEACHMSK |= USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK));
+  }
+  else
+  {
+    if (((USBx_OUTEP(epnum)->DOEPCTL) & USB_OTG_DOEPCTL_USBAEP) == 0U)
+    {
+      USBx_OUTEP(epnum)->DOEPCTL |= (ep->maxpacket & USB_OTG_DOEPCTL_MPSIZ) |
+                                    ((uint32_t)ep->type << 18) | (epnum << 22) |
+                                    USB_OTG_DOEPCTL_USBAEP;
+    }
+
+    USBx_DEVICE->DEACHMSK |= USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  De-activate and de-initialize an endpoint
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DeactivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  /* Read DEPCTLn register */
+  if (ep->is_in == 1U)
+  {
+    if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA)
+    {
+      USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SNAK;
+      USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_EPDIS;
+    }
+
+    USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)));
+    USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)));
+    USBx_INEP(epnum)->DIEPCTL &= ~(USB_OTG_DIEPCTL_USBAEP |
+                                   USB_OTG_DIEPCTL_MPSIZ |
+                                   USB_OTG_DIEPCTL_TXFNUM |
+                                   USB_OTG_DIEPCTL_SD0PID_SEVNFRM |
+                                   USB_OTG_DIEPCTL_EPTYP);
+  }
+  else
+  {
+    if ((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
+    {
+      USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SNAK;
+      USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_EPDIS;
+    }
+
+    USBx_DEVICE->DEACHMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16));
+    USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16));
+    USBx_OUTEP(epnum)->DOEPCTL &= ~(USB_OTG_DOEPCTL_USBAEP |
+                                    USB_OTG_DOEPCTL_MPSIZ |
+                                    USB_OTG_DOEPCTL_SD0PID_SEVNFRM |
+                                    USB_OTG_DOEPCTL_EPTYP);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  De-activate and de-initialize a dedicated endpoint
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DeactivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  /* Read DEPCTLn register */
+  if (ep->is_in == 1U)
+  {
+    if ((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == USB_OTG_DIEPCTL_EPENA)
+    {
+      USBx_INEP(epnum)->DIEPCTL  |= USB_OTG_DIEPCTL_SNAK;
+      USBx_INEP(epnum)->DIEPCTL  |= USB_OTG_DIEPCTL_EPDIS;
+    }
+
+    USBx_INEP(epnum)->DIEPCTL &= ~ USB_OTG_DIEPCTL_USBAEP;
+    USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_IEPM & (uint32_t)(1UL << (ep->num & EP_ADDR_MSK)));
+  }
+  else
+  {
+    if ((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
+    {
+      USBx_OUTEP(epnum)->DOEPCTL  |= USB_OTG_DOEPCTL_SNAK;
+      USBx_OUTEP(epnum)->DOEPCTL  |= USB_OTG_DOEPCTL_EPDIS;
+    }
+
+    USBx_OUTEP(epnum)->DOEPCTL &= ~USB_OTG_DOEPCTL_USBAEP;
+    USBx_DEVICE->DAINTMSK &= ~(USB_OTG_DAINTMSK_OEPM & ((uint32_t)(1UL << (ep->num & EP_ADDR_MSK)) << 16));
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EPStartXfer : setup and starts a transfer over an EP
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EPStartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+  uint16_t pktcnt;
+
+  /* IN endpoint */
+  if (ep->is_in == 1U)
+  {
+    /* Zero Length Packet? */
+    if (ep->xfer_len == 0U)
+    {
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+      USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19));
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+    }
+    else
+    {
+      /* Program the transfer size and packet count
+      * as follows: xfersize = N * maxpacket +
+      * short_packet pktcnt = N + (short_packet
+      * exist ? 1 : 0)
+      */
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+      USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (((ep->xfer_len + ep->maxpacket - 1U) / ep->maxpacket) << 19));
+      USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len);
+
+      if (ep->type == EP_TYPE_ISOC)
+      {
+        USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_MULCNT);
+        USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_MULCNT & (1U << 29));
+      }
+    }
+    /* EP enable, IN data in FIFO */
+    USBx_INEP(epnum)->DIEPCTL |= (USB_OTG_DIEPCTL_CNAK | USB_OTG_DIEPCTL_EPENA);
+
+    if (ep->type != EP_TYPE_ISOC)
+    {
+      /* Enable the Tx FIFO Empty Interrupt for this EP */
+      if (ep->xfer_len > 0U)
+      {
+        USBx_DEVICE->DIEPEMPMSK |= 1UL << (ep->num & EP_ADDR_MSK);
+      }
+    }
+    else
+    {
+      if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U)
+      {
+        USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SODDFRM;
+      }
+      else
+      {
+        USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM;
+      }
+
+      (void)USB_WritePacket(USBx, ep->xfer_buff, ep->num, (uint16_t)ep->xfer_len);
+    }
+  }
+  else /* OUT endpoint */
+  {
+    /* Program the transfer size and packet count as follows:
+    * pktcnt = N
+    * xfersize = N * maxpacket
+    */
+    USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ);
+    USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT);
+
+    if (ep->xfer_len == 0U)
+    {
+      USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & ep->maxpacket);
+      USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19));
+    }
+    else
+    {
+      pktcnt = (uint16_t)((ep->xfer_len + ep->maxpacket - 1U) / ep->maxpacket);
+      USBx_OUTEP(epnum)->DOEPTSIZ |= USB_OTG_DOEPTSIZ_PKTCNT & ((uint32_t)pktcnt << 19);
+      USBx_OUTEP(epnum)->DOEPTSIZ |= USB_OTG_DOEPTSIZ_XFRSIZ & (ep->maxpacket * pktcnt);
+    }
+
+    if (ep->type == EP_TYPE_ISOC)
+    {
+      if ((USBx_DEVICE->DSTS & (1U << 8)) == 0U)
+      {
+        USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SODDFRM;
+      }
+      else
+      {
+        USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SD0PID_SEVNFRM;
+      }
+    }
+    /* EP enable */
+    USBx_OUTEP(epnum)->DOEPCTL |= (USB_OTG_DOEPCTL_CNAK | USB_OTG_DOEPCTL_EPENA);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EP0StartXfer : setup and starts a transfer over the EP  0
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EP0StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  /* IN endpoint */
+  if (ep->is_in == 1U)
+  {
+    /* Zero Length Packet? */
+    if (ep->xfer_len == 0U)
+    {
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+      USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19));
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+    }
+    else
+    {
+      /* Program the transfer size and packet count
+      * as follows: xfersize = N * maxpacket +
+      * short_packet pktcnt = N + (short_packet
+      * exist ? 1 : 0)
+      */
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_XFRSIZ);
+      USBx_INEP(epnum)->DIEPTSIZ &= ~(USB_OTG_DIEPTSIZ_PKTCNT);
+
+      if (ep->xfer_len > ep->maxpacket)
+      {
+        ep->xfer_len = ep->maxpacket;
+      }
+      USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_PKTCNT & (1U << 19));
+      USBx_INEP(epnum)->DIEPTSIZ |= (USB_OTG_DIEPTSIZ_XFRSIZ & ep->xfer_len);
+    }
+
+    /* EP enable, IN data in FIFO */
+    USBx_INEP(epnum)->DIEPCTL |= (USB_OTG_DIEPCTL_CNAK | USB_OTG_DIEPCTL_EPENA);
+
+    /* Enable the Tx FIFO Empty Interrupt for this EP */
+    if (ep->xfer_len > 0U)
+    {
+      USBx_DEVICE->DIEPEMPMSK |= 1UL << (ep->num & EP_ADDR_MSK);
+    }
+  }
+  else /* OUT endpoint */
+  {
+    /* Program the transfer size and packet count as follows:
+    * pktcnt = N
+    * xfersize = N * maxpacket
+    */
+    USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_XFRSIZ);
+    USBx_OUTEP(epnum)->DOEPTSIZ &= ~(USB_OTG_DOEPTSIZ_PKTCNT);
+
+    if (ep->xfer_len > 0U)
+    {
+      ep->xfer_len = ep->maxpacket;
+    }
+
+    USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19));
+    USBx_OUTEP(epnum)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_XFRSIZ & (ep->maxpacket));
+
+    /* EP enable */
+    USBx_OUTEP(epnum)->DOEPCTL |= (USB_OTG_DOEPCTL_CNAK | USB_OTG_DOEPCTL_EPENA);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_WritePacket : Writes a packet into the Tx FIFO associated
+  *         with the EP/channel
+  * @param  USBx  Selected device
+  * @param  src   pointer to source buffer
+  * @param  ch_ep_num  endpoint or host channel number
+  * @param  len  Number of bytes to write
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_WritePacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *src,
+                                  uint8_t ch_ep_num, uint16_t len)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t *pSrc = (uint32_t *)src;
+  uint32_t count32b, i;
+
+  count32b = ((uint32_t)len + 3U) / 4U;
+  for (i = 0U; i < count32b; i++)
+  {
+    USBx_DFIFO((uint32_t)ch_ep_num) = __UNALIGNED_UINT32_READ(pSrc);
+    pSrc++;
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_ReadPacket : read a packet from the RX FIFO
+  * @param  USBx  Selected device
+  * @param  dest  source pointer
+  * @param  len  Number of bytes to read
+  * @retval pointer to destination buffer
+  */
+void *USB_ReadPacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *dest, uint16_t len)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t *pDest = (uint32_t *)dest;
+  uint32_t i;
+  uint32_t count32b = ((uint32_t)len + 3U) / 4U;
+
+  for (i = 0U; i < count32b; i++)
+  {
+    __UNALIGNED_UINT32_WRITE(pDest, USBx_DFIFO(0U));
+    pDest++;
+  }
+
+  return ((void *)pDest);
+}
+
+/**
+  * @brief  USB_EPSetStall : set a stall condition over an EP
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EPSetStall(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  if (ep->is_in == 1U)
+  {
+    if (((USBx_INEP(epnum)->DIEPCTL & USB_OTG_DIEPCTL_EPENA) == 0U) && (epnum != 0U))
+    {
+      USBx_INEP(epnum)->DIEPCTL &= ~(USB_OTG_DIEPCTL_EPDIS);
+    }
+    USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_STALL;
+  }
+  else
+  {
+    if (((USBx_OUTEP(epnum)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == 0U) && (epnum != 0U))
+    {
+      USBx_OUTEP(epnum)->DOEPCTL &= ~(USB_OTG_DOEPCTL_EPDIS);
+    }
+    USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_STALL;
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EPClearStall : Clear a stall condition over an EP
+  * @param  USBx  Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EPClearStall(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t epnum = (uint32_t)ep->num;
+
+  if (ep->is_in == 1U)
+  {
+    USBx_INEP(epnum)->DIEPCTL &= ~USB_OTG_DIEPCTL_STALL;
+    if ((ep->type == EP_TYPE_INTR) || (ep->type == EP_TYPE_BULK))
+    {
+      USBx_INEP(epnum)->DIEPCTL |= USB_OTG_DIEPCTL_SD0PID_SEVNFRM; /* DATA0 */
+    }
+  }
+  else
+  {
+    USBx_OUTEP(epnum)->DOEPCTL &= ~USB_OTG_DOEPCTL_STALL;
+    if ((ep->type == EP_TYPE_INTR) || (ep->type == EP_TYPE_BULK))
+    {
+      USBx_OUTEP(epnum)->DOEPCTL |= USB_OTG_DOEPCTL_SD0PID_SEVNFRM; /* DATA0 */
+    }
+  }
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_StopDevice : Stop the usb device mode
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_StopDevice(USB_OTG_GlobalTypeDef *USBx)
+{
+  HAL_StatusTypeDef ret;
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t i;
+
+  /* Clear Pending interrupt */
+  for (i = 0U; i < 15U; i++)
+  {
+    USBx_INEP(i)->DIEPINT = 0xFB7FU;
+    USBx_OUTEP(i)->DOEPINT = 0xFB7FU;
+  }
+
+  /* Clear interrupt masks */
+  USBx_DEVICE->DIEPMSK  = 0U;
+  USBx_DEVICE->DOEPMSK  = 0U;
+  USBx_DEVICE->DAINTMSK = 0U;
+
+  /* Flush the FIFO */
+  ret = USB_FlushRxFifo(USBx);
+  if (ret != HAL_OK)
+  {
+    return ret;
+  }
+
+  ret = USB_FlushTxFifo(USBx,  0x10U);
+  if (ret != HAL_OK)
+  {
+    return ret;
+  }
+
+  return ret;
+}
+
+/**
+  * @brief  USB_SetDevAddress : Stop the usb device mode
+  * @param  USBx  Selected device
+  * @param  address  new device address to be assigned
+  *          This parameter can be a value from 0 to 255
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_SetDevAddress(USB_OTG_GlobalTypeDef *USBx, uint8_t address)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  USBx_DEVICE->DCFG &= ~(USB_OTG_DCFG_DAD);
+  USBx_DEVICE->DCFG |= ((uint32_t)address << 4) & USB_OTG_DCFG_DAD;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DevConnect : Connect the USB device by enabling Rpu
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_DevConnect(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  /* In case phy is stopped, ensure to ungate and restore the phy CLK */
+  USBx_PCGCCTL &= ~(USB_OTG_PCGCCTL_STOPCLK | USB_OTG_PCGCCTL_GATECLK);
+
+  USBx_DEVICE->DCTL &= ~USB_OTG_DCTL_SDIS;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DevDisconnect : Disconnect the USB device by disabling Rpu
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_DevDisconnect(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  /* In case phy is stopped, ensure to ungate and restore the phy CLK */
+  USBx_PCGCCTL &= ~(USB_OTG_PCGCCTL_STOPCLK | USB_OTG_PCGCCTL_GATECLK);
+
+  USBx_DEVICE->DCTL |= USB_OTG_DCTL_SDIS;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_ReadInterrupts: return the global USB interrupt status
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+uint32_t  USB_ReadInterrupts(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t tmpreg;
+
+  tmpreg = USBx->GINTSTS;
+  tmpreg &= USBx->GINTMSK;
+
+  return tmpreg;
+}
+
+/**
+  * @brief  USB_ReadDevAllOutEpInterrupt: return the USB device OUT endpoints interrupt status
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+uint32_t USB_ReadDevAllOutEpInterrupt(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t tmpreg;
+
+  tmpreg  = USBx_DEVICE->DAINT;
+  tmpreg &= USBx_DEVICE->DAINTMSK;
+
+  return ((tmpreg & 0xffff0000U) >> 16);
+}
+
+/**
+  * @brief  USB_ReadDevAllInEpInterrupt: return the USB device IN endpoints interrupt status
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+uint32_t USB_ReadDevAllInEpInterrupt(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t tmpreg;
+
+  tmpreg  = USBx_DEVICE->DAINT;
+  tmpreg &= USBx_DEVICE->DAINTMSK;
+
+  return ((tmpreg & 0xFFFFU));
+}
+
+/**
+  * @brief  Returns Device OUT EP Interrupt register
+  * @param  USBx  Selected device
+  * @param  epnum  endpoint number
+  *          This parameter can be a value from 0 to 15
+  * @retval Device OUT EP Interrupt register
+  */
+uint32_t USB_ReadDevOutEPInterrupt(USB_OTG_GlobalTypeDef *USBx, uint8_t epnum)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t tmpreg;
+
+  tmpreg  = USBx_OUTEP((uint32_t)epnum)->DOEPINT;
+  tmpreg &= USBx_DEVICE->DOEPMSK;
+
+  return tmpreg;
+}
+
+/**
+  * @brief  Returns Device IN EP Interrupt register
+  * @param  USBx  Selected device
+  * @param  epnum  endpoint number
+  *          This parameter can be a value from 0 to 15
+  * @retval Device IN EP Interrupt register
+  */
+uint32_t USB_ReadDevInEPInterrupt(USB_OTG_GlobalTypeDef *USBx, uint8_t epnum)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t tmpreg, msk, emp;
+
+  msk = USBx_DEVICE->DIEPMSK;
+  emp = USBx_DEVICE->DIEPEMPMSK;
+  msk |= ((emp >> (epnum & EP_ADDR_MSK)) & 0x1U) << 7;
+  tmpreg = USBx_INEP((uint32_t)epnum)->DIEPINT & msk;
+
+  return tmpreg;
+}
+
+/**
+  * @brief  USB_ClearInterrupts: clear a USB interrupt
+  * @param  USBx  Selected device
+  * @param  interrupt  flag
+  * @retval None
+  */
+void  USB_ClearInterrupts(USB_OTG_GlobalTypeDef *USBx, uint32_t interrupt)
+{
+  USBx->GINTSTS |= interrupt;
+}
+
+/**
+  * @brief  Returns USB core mode
+  * @param  USBx  Selected device
+  * @retval return core mode : Host or Device
+  *          This parameter can be one of these values:
+  *           0 : Host
+  *           1 : Device
+  */
+uint32_t USB_GetMode(USB_OTG_GlobalTypeDef *USBx)
+{
+  return ((USBx->GINTSTS) & 0x1U);
+}
+
+/**
+  * @brief  Activate EP0 for Setup transactions
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_ActivateSetup(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  /* Set the MPS of the IN EP0 to 64 bytes */
+  USBx_INEP(0U)->DIEPCTL &= ~USB_OTG_DIEPCTL_MPSIZ;
+
+  USBx_DEVICE->DCTL |= USB_OTG_DCTL_CGINAK;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Prepare the EP0 to start the first control setup
+  * @param  USBx  Selected device
+  * @param  psetup  pointer to setup packet
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EP0_OutStart(USB_OTG_GlobalTypeDef *USBx, uint8_t *psetup)
+{
+  UNUSED(psetup);
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t gSNPSiD = *(__IO uint32_t *)(&USBx->CID + 0x1U);
+
+  if (gSNPSiD > USB_OTG_CORE_ID_300A)
+  {
+    if ((USBx_OUTEP(0U)->DOEPCTL & USB_OTG_DOEPCTL_EPENA) == USB_OTG_DOEPCTL_EPENA)
+    {
+      return HAL_OK;
+    }
+  }
+
+  USBx_OUTEP(0U)->DOEPTSIZ = 0U;
+  USBx_OUTEP(0U)->DOEPTSIZ |= (USB_OTG_DOEPTSIZ_PKTCNT & (1U << 19));
+  USBx_OUTEP(0U)->DOEPTSIZ |= (3U * 8U);
+  USBx_OUTEP(0U)->DOEPTSIZ |=  USB_OTG_DOEPTSIZ_STUPCNT;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Reset the USB Core (needed after USB clock settings change)
+  * @param  USBx  Selected device
+  * @retval HAL status
+  */
+static HAL_StatusTypeDef USB_CoreReset(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t count = 0U;
+
+  /* Wait for AHB master IDLE state. */
+  do
+  {
+    if (++count > 200000U)
+    {
+      return HAL_TIMEOUT;
+    }
+  } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_AHBIDL) == 0U);
+
+  /* Core Soft Reset */
+  count = 0U;
+  USBx->GRSTCTL |= USB_OTG_GRSTCTL_CSRST;
+
+  do
+  {
+    if (++count > 200000U)
+    {
+      return HAL_TIMEOUT;
+    }
+  } while ((USBx->GRSTCTL & USB_OTG_GRSTCTL_CSRST) == USB_OTG_GRSTCTL_CSRST);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_HostInit : Initializes the USB OTG controller registers
+  *         for Host mode
+  * @param  USBx  Selected device
+  * @param  cfg   pointer to a USB_OTG_CfgTypeDef structure that contains
+  *         the configuration information for the specified USBx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_HostInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t i;
+
+  /* Restart the Phy Clock */
+  USBx_PCGCCTL = 0U;
+
+  /* Disable VBUS sensing */
+  USBx->GCCFG &= ~(USB_OTG_GCCFG_VBUSASEN);
+  USBx->GCCFG &= ~(USB_OTG_GCCFG_VBUSBSEN);
+  /* Set default Max speed support */
+  USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSS);
+
+  /* Make sure the FIFOs are flushed. */
+  (void)USB_FlushTxFifo(USBx, 0x10U); /* all Tx FIFOs */
+  (void)USB_FlushRxFifo(USBx);
+
+  /* Clear all pending HC Interrupts */
+  for (i = 0U; i < cfg.Host_channels; i++)
+  {
+    USBx_HC(i)->HCINT = 0xFFFFFFFFU;
+    USBx_HC(i)->HCINTMSK = 0U;
+  }
+
+  /* Enable VBUS driving */
+  (void)USB_DriveVbus(USBx, 1U);
+
+  HAL_Delay(200U);
+
+  /* Disable all interrupts. */
+  USBx->GINTMSK = 0U;
+
+  /* Clear any pending interrupts */
+  USBx->GINTSTS = 0xFFFFFFFFU;
+
+  /* set Rx FIFO size */
+  USBx->GRXFSIZ  = 0x80U;
+  USBx->DIEPTXF0_HNPTXFSIZ = (uint32_t)(((0x60U << 16) & USB_OTG_NPTXFD) | 0x80U);
+  USBx->HPTXFSIZ = (uint32_t)(((0x40U << 16)& USB_OTG_HPTXFSIZ_PTXFD) | 0xE0U);
+  /* Enable the common interrupts */
+  USBx->GINTMSK |= USB_OTG_GINTMSK_RXFLVLM;
+
+  /* Enable interrupts matching to the Host mode ONLY */
+  USBx->GINTMSK |= (USB_OTG_GINTMSK_PRTIM            | USB_OTG_GINTMSK_HCIM | \
+                    USB_OTG_GINTMSK_SOFM             | USB_OTG_GINTSTS_DISCINT | \
+                    USB_OTG_GINTMSK_PXFRM_IISOOXFRM  | USB_OTG_GINTMSK_WUIM);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_InitFSLSPClkSel : Initializes the FSLSPClkSel field of the
+  *         HCFG register on the PHY type and set the right frame interval
+  * @param  USBx  Selected device
+  * @param  freq  clock frequency
+  *          This parameter can be one of these values:
+  *           HCFG_48_MHZ : Full Speed 48 MHz Clock
+  *           HCFG_6_MHZ : Low Speed 6 MHz Clock
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_InitFSLSPClkSel(USB_OTG_GlobalTypeDef *USBx, uint8_t freq)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  USBx_HOST->HCFG &= ~(USB_OTG_HCFG_FSLSPCS);
+  USBx_HOST->HCFG |= (uint32_t)freq & USB_OTG_HCFG_FSLSPCS;
+
+  if (freq == HCFG_48_MHZ)
+  {
+    USBx_HOST->HFIR = 48000U;
+  }
+  else if (freq == HCFG_6_MHZ)
+  {
+    USBx_HOST->HFIR = 6000U;
+  }
+  else
+  {
+    /* ... */
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_OTG_ResetPort : Reset Host Port
+  * @param  USBx  Selected device
+  * @retval HAL status
+  * @note (1)The application must wait at least 10 ms
+  *   before clearing the reset bit.
+  */
+HAL_StatusTypeDef USB_ResetPort(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  __IO uint32_t hprt0 = 0U;
+
+  hprt0 = USBx_HPRT0;
+
+  hprt0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |
+             USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG);
+
+  USBx_HPRT0 = (USB_OTG_HPRT_PRST | hprt0);
+  HAL_Delay(100U);                                 /* See Note #1 */
+  USBx_HPRT0 = ((~USB_OTG_HPRT_PRST) & hprt0);
+  HAL_Delay(10U);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DriveVbus : activate or de-activate vbus
+  * @param  state  VBUS state
+  *          This parameter can be one of these values:
+  *           0 : Deactivate VBUS
+  *           1 : Activate VBUS
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DriveVbus(USB_OTG_GlobalTypeDef *USBx, uint8_t state)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  __IO uint32_t hprt0 = 0U;
+
+  hprt0 = USBx_HPRT0;
+
+  hprt0 &= ~(USB_OTG_HPRT_PENA | USB_OTG_HPRT_PCDET |
+             USB_OTG_HPRT_PENCHNG | USB_OTG_HPRT_POCCHNG);
+
+  if (((hprt0 & USB_OTG_HPRT_PPWR) == 0U) && (state == 1U))
+  {
+    USBx_HPRT0 = (USB_OTG_HPRT_PPWR | hprt0);
+  }
+  if (((hprt0 & USB_OTG_HPRT_PPWR) == USB_OTG_HPRT_PPWR) && (state == 0U))
+  {
+    USBx_HPRT0 = ((~USB_OTG_HPRT_PPWR) & hprt0);
+  }
+  return HAL_OK;
+}
+
+/**
+  * @brief  Return Host Core speed
+  * @param  USBx  Selected device
+  * @retval speed : Host speed
+  *          This parameter can be one of these values:
+  *            @arg HCD_SPEED_FULL: Full speed mode
+  *            @arg HCD_SPEED_LOW: Low speed mode
+  */
+uint32_t USB_GetHostSpeed(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  __IO uint32_t hprt0 = 0U;
+
+  hprt0 = USBx_HPRT0;
+  return ((hprt0 & USB_OTG_HPRT_PSPD) >> 17);
+}
+
+/**
+  * @brief  Return Host Current Frame number
+  * @param  USBx  Selected device
+  * @retval current frame number
+  */
+uint32_t USB_GetCurrentFrame(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  return (USBx_HOST->HFNUM & USB_OTG_HFNUM_FRNUM);
+}
+
+/**
+  * @brief  Initialize a host channel
+  * @param  USBx  Selected device
+  * @param  ch_num  Channel number
+  *         This parameter can be a value from 1 to 15
+  * @param  epnum  Endpoint number
+  *          This parameter can be a value from 1 to 15
+  * @param  dev_address  Current device address
+  *          This parameter can be a value from 0 to 255
+  * @param  speed  Current device speed
+  *          This parameter can be one of these values:
+  *            @arg USB_OTG_SPEED_FULL: Full speed mode
+  *            @arg USB_OTG_SPEED_LOW: Low speed mode
+  * @param  ep_type  Endpoint Type
+  *          This parameter can be one of these values:
+  *            @arg EP_TYPE_CTRL: Control type
+  *            @arg EP_TYPE_ISOC: Isochronous type
+  *            @arg EP_TYPE_BULK: Bulk type
+  *            @arg EP_TYPE_INTR: Interrupt type
+  * @param  mps  Max Packet Size
+  *          This parameter can be a value from 0 to32K
+  * @retval HAL state
+  */
+HAL_StatusTypeDef USB_HC_Init(USB_OTG_GlobalTypeDef *USBx, uint8_t ch_num,
+                              uint8_t epnum, uint8_t dev_address, uint8_t speed,
+                              uint8_t ep_type, uint16_t mps)
+{
+  HAL_StatusTypeDef ret = HAL_OK;
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t HCcharEpDir, HCcharLowSpeed;
+
+  /* Clear old interrupt conditions for this host channel. */
+  USBx_HC((uint32_t)ch_num)->HCINT = 0xFFFFFFFFU;
+
+  /* Enable channel interrupts required for this transfer. */
+  switch (ep_type)
+  {
+    case EP_TYPE_CTRL:
+    case EP_TYPE_BULK:
+      USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM  |
+                                            USB_OTG_HCINTMSK_STALLM |
+                                            USB_OTG_HCINTMSK_TXERRM |
+                                            USB_OTG_HCINTMSK_DTERRM |
+                                            USB_OTG_HCINTMSK_AHBERR |
+                                            USB_OTG_HCINTMSK_NAKM;
+
+      if ((epnum & 0x80U) == 0x80U)
+      {
+        USBx_HC((uint32_t)ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
+      }
+      break;
+
+    case EP_TYPE_INTR:
+      USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM  |
+                                            USB_OTG_HCINTMSK_STALLM |
+                                            USB_OTG_HCINTMSK_TXERRM |
+                                            USB_OTG_HCINTMSK_DTERRM |
+                                            USB_OTG_HCINTMSK_NAKM   |
+                                            USB_OTG_HCINTMSK_AHBERR |
+                                            USB_OTG_HCINTMSK_FRMORM;
+
+      if ((epnum & 0x80U) == 0x80U)
+      {
+        USBx_HC((uint32_t)ch_num)->HCINTMSK |= USB_OTG_HCINTMSK_BBERRM;
+      }
+
+      break;
+
+    case EP_TYPE_ISOC:
+      USBx_HC((uint32_t)ch_num)->HCINTMSK = USB_OTG_HCINTMSK_XFRCM  |
+                                            USB_OTG_HCINTMSK_ACKM   |
+                                            USB_OTG_HCINTMSK_AHBERR |
+                                            USB_OTG_HCINTMSK_FRMORM;
+
+      if ((epnum & 0x80U) == 0x80U)
+      {
+        USBx_HC((uint32_t)ch_num)->HCINTMSK |= (USB_OTG_HCINTMSK_TXERRM | USB_OTG_HCINTMSK_BBERRM);
+      }
+      break;
+
+    default:
+      ret = HAL_ERROR;
+      break;
+  }
+
+  /* Enable the top level host channel interrupt. */
+  USBx_HOST->HAINTMSK |= 1UL << (ch_num & 0xFU);
+
+  /* Make sure host channel interrupts are enabled. */
+  USBx->GINTMSK |= USB_OTG_GINTMSK_HCIM;
+
+  /* Program the HCCHAR register */
+  if ((epnum & 0x80U) == 0x80U)
+  {
+    HCcharEpDir = (0x1U << 15) & USB_OTG_HCCHAR_EPDIR;
+  }
+  else
+  {
+    HCcharEpDir = 0U;
+  }
+
+  if (speed == HPRT0_PRTSPD_LOW_SPEED)
+  {
+    HCcharLowSpeed = (0x1U << 17) & USB_OTG_HCCHAR_LSDEV;
+  }
+  else
+  {
+    HCcharLowSpeed = 0U;
+  }
+
+  USBx_HC((uint32_t)ch_num)->HCCHAR = (((uint32_t)dev_address << 22) & USB_OTG_HCCHAR_DAD) |
+                                      ((((uint32_t)epnum & 0x7FU) << 11) & USB_OTG_HCCHAR_EPNUM) |
+                                      (((uint32_t)ep_type << 18) & USB_OTG_HCCHAR_EPTYP) |
+                                      ((uint32_t)mps & USB_OTG_HCCHAR_MPSIZ) | HCcharEpDir | HCcharLowSpeed;
+
+  if (ep_type == EP_TYPE_INTR)
+  {
+    USBx_HC((uint32_t)ch_num)->HCCHAR |= USB_OTG_HCCHAR_ODDFRM ;
+  }
+
+  return ret;
+}
+
+/**
+  * @brief  Start a transfer over a host channel
+  * @param  USBx  Selected device
+  * @param  hc  pointer to host channel structure
+  * @retval HAL state
+  */
+HAL_StatusTypeDef USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t ch_num = (uint32_t)hc->ch_num;
+  static __IO uint32_t tmpreg = 0U;
+  uint8_t  is_oddframe;
+  uint16_t len_words;
+  uint16_t num_packets;
+  uint16_t max_hc_pkt_count = 256U;
+
+  /* Compute the expected number of packets associated to the transfer */
+  if (hc->xfer_len > 0U)
+  {
+    num_packets = (uint16_t)((hc->xfer_len + hc->max_packet - 1U) / hc->max_packet);
+
+    if (num_packets > max_hc_pkt_count)
+    {
+      num_packets = max_hc_pkt_count;
+      hc->xfer_len = (uint32_t)num_packets * hc->max_packet;
+    }
+  }
+  else
+  {
+    num_packets = 1U;
+  }
+  if (hc->ep_is_in != 0U)
+  {
+    hc->xfer_len = (uint32_t)num_packets * hc->max_packet;
+  }
+
+  /* Initialize the HCTSIZn register */
+  USBx_HC(ch_num)->HCTSIZ = (hc->xfer_len & USB_OTG_HCTSIZ_XFRSIZ) |
+                            (((uint32_t)num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) |
+                            (((uint32_t)hc->data_pid << 29) & USB_OTG_HCTSIZ_DPID);
+
+  is_oddframe = (((uint32_t)USBx_HOST->HFNUM & 0x01U) != 0U) ? 0U : 1U;
+  USBx_HC(ch_num)->HCCHAR &= ~USB_OTG_HCCHAR_ODDFRM;
+  USBx_HC(ch_num)->HCCHAR |= (uint32_t)is_oddframe << 29;
+
+  /* Set host channel enable */
+  tmpreg = USBx_HC(ch_num)->HCCHAR;
+  tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
+
+  /* make sure to set the correct ep direction */
+  if (hc->ep_is_in != 0U)
+  {
+    tmpreg |= USB_OTG_HCCHAR_EPDIR;
+  }
+  else
+  {
+    tmpreg &= ~USB_OTG_HCCHAR_EPDIR;
+  }
+  tmpreg |= USB_OTG_HCCHAR_CHENA;
+  USBx_HC(ch_num)->HCCHAR = tmpreg;
+
+  if ((hc->ep_is_in == 0U) && (hc->xfer_len > 0U))
+  {
+    switch (hc->ep_type)
+    {
+      /* Non periodic transfer */
+      case EP_TYPE_CTRL:
+      case EP_TYPE_BULK:
+
+        len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);
+
+        /* check if there is enough space in FIFO space */
+        if (len_words > (USBx->HNPTXSTS & 0xFFFFU))
+        {
+          /* need to process data in nptxfempty interrupt */
+          USBx->GINTMSK |= USB_OTG_GINTMSK_NPTXFEM;
+        }
+        break;
+
+      /* Periodic transfer */
+      case EP_TYPE_INTR:
+      case EP_TYPE_ISOC:
+        len_words = (uint16_t)((hc->xfer_len + 3U) / 4U);
+        /* check if there is enough space in FIFO space */
+        if (len_words > (USBx_HOST->HPTXSTS & 0xFFFFU)) /* split the transfer */
+        {
+          /* need to process data in ptxfempty interrupt */
+          USBx->GINTMSK |= USB_OTG_GINTMSK_PTXFEM;
+        }
+        break;
+
+      default:
+        break;
+    }
+
+    /* Write packet into the Tx FIFO. */
+    (void)USB_WritePacket(USBx, hc->xfer_buff, hc->ch_num, (uint16_t)hc->xfer_len);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief Read all host channel interrupts status
+  * @param  USBx  Selected device
+  * @retval HAL state
+  */
+uint32_t USB_HC_ReadInterrupt(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  return ((USBx_HOST->HAINT) & 0xFFFFU);
+}
+
+/**
+  * @brief  Halt a host channel
+  * @param  USBx  Selected device
+  * @param  hc_num  Host Channel number
+  *         This parameter can be a value from 1 to 15
+  * @retval HAL state
+  */
+HAL_StatusTypeDef USB_HC_Halt(USB_OTG_GlobalTypeDef *USBx, uint8_t hc_num)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t hcnum = (uint32_t)hc_num;
+  uint32_t count = 0U;
+  uint32_t HcEpType = (USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_EPTYP) >> 18;
+
+  /* Check for space in the request queue to issue the halt. */
+  if ((HcEpType == HCCHAR_CTRL) || (HcEpType == HCCHAR_BULK))
+  {
+    USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHDIS;
+
+    if ((USBx->HNPTXSTS & (0xFFU << 16)) == 0U)
+    {
+      USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
+      USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+      USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
+      do
+      {
+        if (++count > 1000U)
+        {
+          break;
+        }
+      } while ((USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
+    }
+    else
+    {
+      USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+    }
+  }
+  else
+  {
+    USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHDIS;
+
+    if ((USBx_HOST->HPTXSTS & (0xFFU << 16)) == 0U)
+    {
+      USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_CHENA;
+      USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+      USBx_HC(hcnum)->HCCHAR &= ~USB_OTG_HCCHAR_EPDIR;
+      do
+      {
+        if (++count > 1000U)
+        {
+          break;
+        }
+      } while ((USBx_HC(hcnum)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
+    }
+    else
+    {
+      USBx_HC(hcnum)->HCCHAR |= USB_OTG_HCCHAR_CHENA;
+    }
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Initiate Do Ping protocol
+  * @param  USBx  Selected device
+  * @param  hc_num  Host Channel number
+  *         This parameter can be a value from 1 to 15
+  * @retval HAL state
+  */
+HAL_StatusTypeDef USB_DoPing(USB_OTG_GlobalTypeDef *USBx, uint8_t ch_num)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t chnum = (uint32_t)ch_num;
+  uint32_t num_packets = 1U;
+  uint32_t tmpreg;
+
+  USBx_HC(chnum)->HCTSIZ = ((num_packets << 19) & USB_OTG_HCTSIZ_PKTCNT) |
+                           USB_OTG_HCTSIZ_DOPING;
+
+  /* Set host channel enable */
+  tmpreg = USBx_HC(chnum)->HCCHAR;
+  tmpreg &= ~USB_OTG_HCCHAR_CHDIS;
+  tmpreg |= USB_OTG_HCCHAR_CHENA;
+  USBx_HC(chnum)->HCCHAR = tmpreg;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Stop Host Core
+  * @param  USBx  Selected device
+  * @retval HAL state
+  */
+HAL_StatusTypeDef USB_StopHost(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+  uint32_t count = 0U;
+  uint32_t value;
+  uint32_t i;
+
+  (void)USB_DisableGlobalInt(USBx);
+
+  /* Flush FIFO */
+  (void)USB_FlushTxFifo(USBx, 0x10U);
+  (void)USB_FlushRxFifo(USBx);
+
+  /* Flush out any leftover queued requests. */
+  for (i = 0U; i <= 15U; i++)
+  {
+    value = USBx_HC(i)->HCCHAR;
+    value |=  USB_OTG_HCCHAR_CHDIS;
+    value &= ~USB_OTG_HCCHAR_CHENA;
+    value &= ~USB_OTG_HCCHAR_EPDIR;
+    USBx_HC(i)->HCCHAR = value;
+  }
+
+  /* Halt all channels to put them into a known state. */
+  for (i = 0U; i <= 15U; i++)
+  {
+    value = USBx_HC(i)->HCCHAR;
+    value |= USB_OTG_HCCHAR_CHDIS;
+    value |= USB_OTG_HCCHAR_CHENA;
+    value &= ~USB_OTG_HCCHAR_EPDIR;
+    USBx_HC(i)->HCCHAR = value;
+
+    do
+    {
+      if (++count > 1000U)
+      {
+        break;
+      }
+    } while ((USBx_HC(i)->HCCHAR & USB_OTG_HCCHAR_CHENA) == USB_OTG_HCCHAR_CHENA);
+  }
+
+  /* Clear any pending Host interrupts */
+  USBx_HOST->HAINT = 0xFFFFFFFFU;
+  USBx->GINTSTS = 0xFFFFFFFFU;
+
+  (void)USB_EnableGlobalInt(USBx);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_ActivateRemoteWakeup active remote wakeup signalling
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  if ((USBx_DEVICE->DSTS & USB_OTG_DSTS_SUSPSTS) == USB_OTG_DSTS_SUSPSTS)
+  {
+    /* active Remote wakeup signalling */
+    USBx_DEVICE->DCTL |= USB_OTG_DCTL_RWUSIG;
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DeActivateRemoteWakeup de-active remote wakeup signalling
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx)
+{
+  uint32_t USBx_BASE = (uint32_t)USBx;
+
+  /* active Remote wakeup signalling */
+  USBx_DEVICE->DCTL &= ~(USB_OTG_DCTL_RWUSIG);
+
+  return HAL_OK;
+}
+#endif /* defined (USB_OTG_FS) */
+
+#if defined (USB)
+/**
+  * @brief  Initializes the USB Core
+  * @param  USBx USB Instance
+  * @param  cfg pointer to a USB_CfgTypeDef structure that contains
+  *         the configuration information for the specified USBx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_CoreInit(USB_TypeDef *USBx, USB_CfgTypeDef cfg)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(cfg);
+
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EnableGlobalInt
+  *         Enables the controller's Global Int in the AHB Config reg
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EnableGlobalInt(USB_TypeDef *USBx)
+{
+  uint32_t winterruptmask;
+
+  /* Clear pending interrupts */
+  USBx->ISTR = 0U;
+
+  /* Set winterruptmask variable */
+  winterruptmask = USB_CNTR_CTRM  | USB_CNTR_WKUPM |
+                   USB_CNTR_SUSPM | USB_CNTR_ERRM |
+                   USB_CNTR_SOFM | USB_CNTR_ESOFM |
+                   USB_CNTR_RESETM;
+
+  /* Set interrupt mask */
+  USBx->CNTR = (uint16_t)winterruptmask;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DisableGlobalInt
+  *         Disable the controller's Global Int in the AHB Config reg
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DisableGlobalInt(USB_TypeDef *USBx)
+{
+  uint32_t winterruptmask;
+
+  /* Set winterruptmask variable */
+  winterruptmask = USB_CNTR_CTRM  | USB_CNTR_WKUPM |
+                   USB_CNTR_SUSPM | USB_CNTR_ERRM |
+                   USB_CNTR_SOFM | USB_CNTR_ESOFM |
+                   USB_CNTR_RESETM;
+
+  /* Clear interrupt mask */
+  USBx->CNTR &= (uint16_t)(~winterruptmask);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_SetCurrentMode Set functional mode
+  * @param  USBx Selected device
+  * @param  mode current core mode
+  *          This parameter can be one of the these values:
+  *            @arg USB_DEVICE_MODE Peripheral mode
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_SetCurrentMode(USB_TypeDef *USBx, USB_ModeTypeDef mode)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(mode);
+
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DevInit Initializes the USB controller registers
+  *         for device mode
+  * @param  USBx Selected device
+  * @param  cfg  pointer to a USB_CfgTypeDef structure that contains
+  *         the configuration information for the specified USBx peripheral.
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DevInit(USB_TypeDef *USBx, USB_CfgTypeDef cfg)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(cfg);
+
+  /* Init Device */
+  /* CNTR_FRES = 1 */
+  USBx->CNTR = (uint16_t)USB_CNTR_FRES;
+
+  /* CNTR_FRES = 0 */
+  USBx->CNTR = 0U;
+
+  /* Clear pending interrupts */
+  USBx->ISTR = 0U;
+
+  /*Set Btable Address*/
+  USBx->BTABLE = BTABLE_ADDRESS;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_FlushTxFifo : Flush a Tx FIFO
+  * @param  USBx : Selected device
+  * @param  num : FIFO number
+  *         This parameter can be a value from 1 to 15
+            15 means Flush all Tx FIFOs
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_FlushTxFifo(USB_TypeDef *USBx, uint32_t num)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(num);
+
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_FlushRxFifo : Flush Rx FIFO
+  * @param  USBx : Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_FlushRxFifo(USB_TypeDef *USBx)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  Activate and configure an endpoint
+  * @param  USBx Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_ActivateEndpoint(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+  HAL_StatusTypeDef ret = HAL_OK;
+  uint16_t wEpRegVal;
+
+  wEpRegVal = PCD_GET_ENDPOINT(USBx, ep->num) & USB_EP_T_MASK;
+
+  /* initialize Endpoint */
+  switch (ep->type)
+  {
+    case EP_TYPE_CTRL:
+      wEpRegVal |= USB_EP_CONTROL;
+      break;
+
+    case EP_TYPE_BULK:
+      wEpRegVal |= USB_EP_BULK;
+      break;
+
+    case EP_TYPE_INTR:
+      wEpRegVal |= USB_EP_INTERRUPT;
+      break;
+
+    case EP_TYPE_ISOC:
+      wEpRegVal |= USB_EP_ISOCHRONOUS;
+      break;
+
+    default:
+      ret = HAL_ERROR;
+      break;
+  }
+
+  PCD_SET_ENDPOINT(USBx, ep->num, (wEpRegVal | USB_EP_CTR_RX | USB_EP_CTR_TX));
+
+  PCD_SET_EP_ADDRESS(USBx, ep->num, ep->num);
+
+  if (ep->doublebuffer == 0U)
+  {
+    if (ep->is_in != 0U)
+    {
+      /*Set the endpoint Transmit buffer address */
+      PCD_SET_EP_TX_ADDRESS(USBx, ep->num, ep->pmaadress);
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+      if (ep->type != EP_TYPE_ISOC)
+      {
+        /* Configure NAK status for the Endpoint */
+        PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
+      }
+      else
+      {
+        /* Configure TX Endpoint to disabled state */
+        PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+      }
+    }
+    else
+    {
+      /*Set the endpoint Receive buffer address */
+      PCD_SET_EP_RX_ADDRESS(USBx, ep->num, ep->pmaadress);
+
+      /*Set the endpoint Receive buffer counter*/
+      PCD_SET_EP_RX_CNT(USBx, ep->num, ep->maxpacket);
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+
+      /* Configure VALID status for the Endpoint*/
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+    }
+  }
+  /*Double Buffer*/
+  else
+  {
+    /* Set the endpoint as double buffered */
+    PCD_SET_EP_DBUF(USBx, ep->num);
+
+    /* Set buffer address for double buffered mode */
+    PCD_SET_EP_DBUF_ADDR(USBx, ep->num, ep->pmaaddr0, ep->pmaaddr1);
+
+    if (ep->is_in == 0U)
+    {
+      /* Clear the data toggle bits for the endpoint IN/OUT */
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+      PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+    }
+    else
+    {
+      /* Clear the data toggle bits for the endpoint IN/OUT */
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+      if (ep->type != EP_TYPE_ISOC)
+      {
+        /* Configure NAK status for the Endpoint */
+        PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
+      }
+      else
+      {
+        /* Configure TX Endpoint to disabled state */
+        PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+      }
+
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+    }
+  }
+
+  return ret;
+}
+
+/**
+  * @brief  De-activate and de-initialize an endpoint
+  * @param  USBx Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DeactivateEndpoint(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+  if (ep->doublebuffer == 0U)
+  {
+    if (ep->is_in != 0U)
+    {
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+      /* Configure DISABLE status for the Endpoint*/
+      PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+    }
+    else
+    {
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+
+      /* Configure DISABLE status for the Endpoint*/
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+    }
+  }
+  /*Double Buffer*/
+  else
+  {
+    if (ep->is_in == 0U)
+    {
+      /* Clear the data toggle bits for the endpoint IN/OUT*/
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+      /* Reset value of the data toggle bits for the endpoint out*/
+      PCD_TX_DTOG(USBx, ep->num);
+
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+      PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+    }
+    else
+    {
+      /* Clear the data toggle bits for the endpoint IN/OUT*/
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+      PCD_RX_DTOG(USBx, ep->num);
+
+      /* Configure DISABLE status for the Endpoint*/
+      PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_DIS);
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_DIS);
+    }
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EPStartXfer setup and starts a transfer over an EP
+  * @param  USBx Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EPStartXfer(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+  uint32_t len;
+  uint16_t pmabuffer;
+  uint16_t wEPVal;
+
+  /* IN endpoint */
+  if (ep->is_in == 1U)
+  {
+    /*Multi packet transfer*/
+    if (ep->xfer_len > ep->maxpacket)
+    {
+      len = ep->maxpacket;
+    }
+    else
+    {
+      len = ep->xfer_len;
+    }
+
+    /* configure and validate Tx endpoint */
+    if (ep->doublebuffer == 0U)
+    {
+      USB_WritePMA(USBx, ep->xfer_buff, ep->pmaadress, (uint16_t)len);
+      PCD_SET_EP_TX_CNT(USBx, ep->num, len);
+    }
+    else
+    {
+      /* double buffer bulk management */
+      if (ep->type == EP_TYPE_BULK)
+      {
+        if (ep->xfer_len_db > ep->maxpacket)
+        {
+          /* enable double buffer */
+          PCD_SET_EP_DBUF(USBx, ep->num);
+
+          /* each Time to write in PMA xfer_len_db will */
+          ep->xfer_len_db -= len;
+
+          /* Fill the two first buffer in the Buffer0 & Buffer1 */
+          if ((PCD_GET_ENDPOINT(USBx, ep->num) & USB_EP_DTOG_TX) != 0U)
+          {
+            /* Set the Double buffer counter for pmabuffer1 */
+            PCD_SET_EP_DBUF1_CNT(USBx, ep->num, ep->is_in, len);
+            pmabuffer = ep->pmaaddr1;
+
+            /* Write the user buffer to USB PMA */
+            USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
+            ep->xfer_buff += len;
+
+            if (ep->xfer_len_db > ep->maxpacket)
+            {
+              ep->xfer_len_db -= len;
+            }
+            else
+            {
+              len = ep->xfer_len_db;
+              ep->xfer_len_db = 0U;
+            }
+
+            /* Set the Double buffer counter for pmabuffer0 */
+            PCD_SET_EP_DBUF0_CNT(USBx, ep->num, ep->is_in, len);
+            pmabuffer = ep->pmaaddr0;
+
+            /* Write the user buffer to USB PMA */
+            USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
+          }
+          else
+          {
+            /* Set the Double buffer counter for pmabuffer0 */
+            PCD_SET_EP_DBUF0_CNT(USBx, ep->num, ep->is_in, len);
+            pmabuffer = ep->pmaaddr0;
+
+            /* Write the user buffer to USB PMA */
+            USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
+            ep->xfer_buff += len;
+
+            if (ep->xfer_len_db > ep->maxpacket)
+            {
+              ep->xfer_len_db -= len;
+            }
+            else
+            {
+              len = ep->xfer_len_db;
+              ep->xfer_len_db = 0U;
+            }
+
+            /* Set the Double buffer counter for pmabuffer1 */
+            PCD_SET_EP_DBUF1_CNT(USBx, ep->num, ep->is_in, len);
+            pmabuffer = ep->pmaaddr1;
+
+            /* Write the user buffer to USB PMA */
+            USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
+          }
+        }
+        /* auto Switch to single buffer mode when transfer <Mps no need to manage in double buffer */
+        else
+        {
+          len = ep->xfer_len_db;
+
+          /* disable double buffer mode */
+          PCD_CLEAR_EP_DBUF(USBx, ep->num);
+
+          /* Set Tx count with nbre of byte to be transmitted */
+          PCD_SET_EP_TX_CNT(USBx, ep->num, len);
+          pmabuffer = ep->pmaaddr0;
+
+          /* Write the user buffer to USB PMA */
+          USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
+        }
+      }/* end if bulk double buffer */
+
+      /* manage isochronous double buffer IN mode */
+      else
+      {
+        /* Write the data to the USB endpoint */
+        if ((PCD_GET_ENDPOINT(USBx, ep->num) & USB_EP_DTOG_TX) != 0U)
+        {
+          /* Set the Double buffer counter for pmabuffer1 */
+          PCD_SET_EP_DBUF1_CNT(USBx, ep->num, ep->is_in, len);
+          pmabuffer = ep->pmaaddr1;
+        }
+        else
+        {
+          /* Set the Double buffer counter for pmabuffer0 */
+          PCD_SET_EP_DBUF0_CNT(USBx, ep->num, ep->is_in, len);
+          pmabuffer = ep->pmaaddr0;
+        }
+
+        USB_WritePMA(USBx, ep->xfer_buff, pmabuffer, (uint16_t)len);
+        PCD_FreeUserBuffer(USBx, ep->num, ep->is_in);
+      }
+    }
+
+    PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_VALID);
+  }
+  else /* OUT endpoint */
+  {
+    if (ep->doublebuffer == 0U)
+    {
+      /* Multi packet transfer */
+      if (ep->xfer_len > ep->maxpacket)
+      {
+        len = ep->maxpacket;
+        ep->xfer_len -= len;
+      }
+      else
+      {
+        len = ep->xfer_len;
+        ep->xfer_len = 0U;
+      }
+      /* configure and validate Rx endpoint */
+      PCD_SET_EP_RX_CNT(USBx, ep->num, len);
+    }
+    else
+    {
+      /* First Transfer Coming From HAL_PCD_EP_Receive & From ISR */
+      /* Set the Double buffer counter */
+      if (ep->type == EP_TYPE_BULK)
+      {
+        PCD_SET_EP_DBUF_CNT(USBx, ep->num, ep->is_in, ep->maxpacket);
+
+        /* Coming from ISR */
+        if (ep->xfer_count != 0U)
+        {
+          /* update last value to check if there is blocking state */
+          wEPVal = PCD_GET_ENDPOINT(USBx, ep->num);
+
+          /*Blocking State */
+          if ((((wEPVal & USB_EP_DTOG_RX) != 0U) && ((wEPVal & USB_EP_DTOG_TX) != 0U)) ||
+              (((wEPVal & USB_EP_DTOG_RX) == 0U) && ((wEPVal & USB_EP_DTOG_TX) == 0U)))
+          {
+            PCD_FreeUserBuffer(USBx, ep->num, 0U);
+          }
+        }
+      }
+      /* iso out double */
+      else if (ep->type == EP_TYPE_ISOC)
+      {
+        /* Multi packet transfer */
+        if (ep->xfer_len > ep->maxpacket)
+        {
+          len = ep->maxpacket;
+          ep->xfer_len -= len;
+        }
+        else
+        {
+          len = ep->xfer_len;
+          ep->xfer_len = 0U;
+        }
+        PCD_SET_EP_DBUF_CNT(USBx, ep->num, ep->is_in, len);
+      }
+      else
+      {
+        return HAL_ERROR;
+      }
+    }
+
+    PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+  }
+
+  return HAL_OK;
+}
+
+
+/**
+  * @brief  USB_EPSetStall set a stall condition over an EP
+  * @param  USBx Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EPSetStall(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+  if (ep->is_in != 0U)
+  {
+    PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_STALL);
+  }
+  else
+  {
+    PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_STALL);
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_EPClearStall Clear a stall condition over an EP
+  * @param  USBx Selected device
+  * @param  ep pointer to endpoint structure
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EPClearStall(USB_TypeDef *USBx, USB_EPTypeDef *ep)
+{
+  if (ep->doublebuffer == 0U)
+  {
+    if (ep->is_in != 0U)
+    {
+      PCD_CLEAR_TX_DTOG(USBx, ep->num);
+
+      if (ep->type != EP_TYPE_ISOC)
+      {
+        /* Configure NAK status for the Endpoint */
+        PCD_SET_EP_TX_STATUS(USBx, ep->num, USB_EP_TX_NAK);
+      }
+    }
+    else
+    {
+      PCD_CLEAR_RX_DTOG(USBx, ep->num);
+
+      /* Configure VALID status for the Endpoint */
+      PCD_SET_EP_RX_STATUS(USBx, ep->num, USB_EP_RX_VALID);
+    }
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_StopDevice Stop the usb device mode
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_StopDevice(USB_TypeDef *USBx)
+{
+  /* disable all interrupts and force USB reset */
+  USBx->CNTR = (uint16_t)USB_CNTR_FRES;
+
+  /* clear interrupt status register */
+  USBx->ISTR = 0U;
+
+  /* switch-off device */
+  USBx->CNTR = (uint16_t)(USB_CNTR_FRES | USB_CNTR_PDWN);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_SetDevAddress Stop the usb device mode
+  * @param  USBx Selected device
+  * @param  address new device address to be assigned
+  *          This parameter can be a value from 0 to 255
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_SetDevAddress(USB_TypeDef *USBx, uint8_t address)
+{
+  if (address == 0U)
+  {
+    /* set device address and enable function */
+    USBx->DADDR = (uint16_t)USB_DADDR_EF;
+  }
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DevConnect Connect the USB device by enabling the pull-up/pull-down
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_DevConnect(USB_TypeDef *USBx)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DevDisconnect Disconnect the USB device by disabling the pull-up/pull-down
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef  USB_DevDisconnect(USB_TypeDef *USBx)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_ReadInterrupts return the global USB interrupt status
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+uint32_t  USB_ReadInterrupts(USB_TypeDef *USBx)
+{
+  uint32_t tmpreg;
+
+  tmpreg = USBx->ISTR;
+  return tmpreg;
+}
+
+/**
+  * @brief  USB_ReadDevAllOutEpInterrupt return the USB device OUT endpoints interrupt status
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+uint32_t USB_ReadDevAllOutEpInterrupt(USB_TypeDef *USBx)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+  return (0);
+}
+
+/**
+  * @brief  USB_ReadDevAllInEpInterrupt return the USB device IN endpoints interrupt status
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+uint32_t USB_ReadDevAllInEpInterrupt(USB_TypeDef *USBx)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+  return (0);
+}
+
+/**
+  * @brief  Returns Device OUT EP Interrupt register
+  * @param  USBx Selected device
+  * @param  epnum endpoint number
+  *          This parameter can be a value from 0 to 15
+  * @retval Device OUT EP Interrupt register
+  */
+uint32_t USB_ReadDevOutEPInterrupt(USB_TypeDef *USBx, uint8_t epnum)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(epnum);
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+  return (0);
+}
+
+/**
+  * @brief  Returns Device IN EP Interrupt register
+  * @param  USBx Selected device
+  * @param  epnum endpoint number
+  *          This parameter can be a value from 0 to 15
+  * @retval Device IN EP Interrupt register
+  */
+uint32_t USB_ReadDevInEPInterrupt(USB_TypeDef *USBx, uint8_t epnum)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(epnum);
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+  return (0);
+}
+
+/**
+  * @brief  USB_ClearInterrupts: clear a USB interrupt
+  * @param  USBx Selected device
+  * @param  interrupt  flag
+  * @retval None
+  */
+void  USB_ClearInterrupts(USB_TypeDef *USBx, uint32_t interrupt)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(interrupt);
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+}
+
+/**
+  * @brief  Prepare the EP0 to start the first control setup
+  * @param  USBx Selected device
+  * @param  psetup pointer to setup packet
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_EP0_OutStart(USB_TypeDef *USBx, uint8_t *psetup)
+{
+  /* Prevent unused argument(s) compilation warning */
+  UNUSED(USBx);
+  UNUSED(psetup);
+  /* NOTE : - This function is not required by USB Device FS peripheral, it is used
+              only by USB OTG FS peripheral.
+            - This function is added to ensure compatibility across platforms.
+   */
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_ActivateRemoteWakeup : active remote wakeup signalling
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_TypeDef *USBx)
+{
+  USBx->CNTR |= (uint16_t)USB_CNTR_RESUME;
+
+  return HAL_OK;
+}
+
+/**
+  * @brief  USB_DeActivateRemoteWakeup de-active remote wakeup signalling
+  * @param  USBx Selected device
+  * @retval HAL status
+  */
+HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_TypeDef *USBx)
+{
+  USBx->CNTR &= (uint16_t)(~USB_CNTR_RESUME);
+
+  return HAL_OK;
+}
+
+/**
+  * @brief Copy a buffer from user memory area to packet memory area (PMA)
+  * @param   USBx USB peripheral instance register address.
+  * @param   pbUsrBuf pointer to user memory area.
+  * @param   wPMABufAddr address into PMA.
+  * @param   wNBytes no. of bytes to be copied.
+  * @retval None
+  */
+void USB_WritePMA(USB_TypeDef *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes)
+{
+  uint32_t n = ((uint32_t)wNBytes + 1U) >> 1;
+  uint32_t BaseAddr = (uint32_t)USBx;
+  uint32_t i, temp1, temp2;
+  __IO uint16_t *pdwVal;
+  uint8_t *pBuf = pbUsrBuf;
+
+  pdwVal = (__IO uint16_t *)(BaseAddr + 0x400U + ((uint32_t)wPMABufAddr * PMA_ACCESS));
+
+  for (i = n; i != 0U; i--)
+  {
+    temp1 = *pBuf;
+    pBuf++;
+    temp2 = temp1 | ((uint16_t)((uint16_t) *pBuf << 8));
+    *pdwVal = (uint16_t)temp2;
+    pdwVal++;
+
+#if PMA_ACCESS > 1U
+    pdwVal++;
+#endif
+
+    pBuf++;
+  }
+}
+
+/**
+  * @brief Copy data from packet memory area (PMA) to user memory buffer
+  * @param   USBx USB peripheral instance register address.
+  * @param   pbUsrBuf pointer to user memory area.
+  * @param   wPMABufAddr address into PMA.
+  * @param   wNBytes no. of bytes to be copied.
+  * @retval None
+  */
+void USB_ReadPMA(USB_TypeDef *USBx, uint8_t *pbUsrBuf, uint16_t wPMABufAddr, uint16_t wNBytes)
+{
+  uint32_t n = (uint32_t)wNBytes >> 1;
+  uint32_t BaseAddr = (uint32_t)USBx;
+  uint32_t i, temp;
+  __IO uint16_t *pdwVal;
+  uint8_t *pBuf = pbUsrBuf;
+
+  pdwVal = (__IO uint16_t *)(BaseAddr + 0x400U + ((uint32_t)wPMABufAddr * PMA_ACCESS));
+
+  for (i = n; i != 0U; i--)
+  {
+    temp = *(__IO uint16_t *)pdwVal;
+    pdwVal++;
+    *pBuf = (uint8_t)((temp >> 0) & 0xFFU);
+    pBuf++;
+    *pBuf = (uint8_t)((temp >> 8) & 0xFFU);
+    pBuf++;
+
+#if PMA_ACCESS > 1U
+    pdwVal++;
+#endif
+  }
+
+  if ((wNBytes % 2U) != 0U)
+  {
+    temp = *pdwVal;
+    *pBuf = (uint8_t)((temp >> 0) & 0xFFU);
+  }
+}
+#endif /* defined (USB) */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+#endif /* defined (USB) || defined (USB_OTG_FS) */
+#endif /* defined (HAL_PCD_MODULE_ENABLED) || defined (HAL_HCD_MODULE_ENABLED) */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

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