text: /**
    ******************************************************************************
    * @file    USB_Device/HID_Standalone/Src/usbd_conf.c
    * @author  MCD Application Team
    * @version V1.0.2
    * @date    06-May-2016
    * @brief   This file implements the USB Device library callbacks and MSP
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright � 2016 STMicroelectronics International N.V.
    * All rights reserved.</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted, provided that the following conditions are met:
    *
    * 1. Redistribution of source code must retain the above copyright notice,
    *    this list of conditions and the following disclaimer.
    * 2. Redistributions in binary form must reproduce the above copyright notice,
    *    this list of conditions and the following disclaimer in the documentation
    *    and/or other materials provided with the distribution.
    * 3. Neither the name of STMicroelectronics nor the names of other
    *    contributors to this software may be used to endorse or promote products
    *    derived from this software without specific written permission.
    * 4. This software, including modifications and/or derivative works of this
    *    software, must execute solely and exclusively on microcontroller or
    *    microprocessor devices manufactured by or for STMicroelectronics.
    * 5. Redistribution and use of this software other than as permitted under
    *    this license is void and will automatically terminate your rights under
    *    this license.
    *
    * THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
    * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
    * PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
    * RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
    * SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
    * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
    * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
    * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    *
    ******************************************************************************
    */
  /* Includes ------------------------------------------------------------------*/
  #ifdef USBCON
  
  #include "usbd_conf.h"
  #include "usbd_core.h"
  #include "hw_config.h"
  
  /* Private typedef -----------------------------------------------------------*/
  /* Private define ------------------------------------------------------------*/
  /* Private macro -------------------------------------------------------------*/
  /* Private variables ---------------------------------------------------------*/
  PCD_HandleTypeDef g_hpcd;
  
  /* Private function prototypes -----------------------------------------------*/
  //static void SystemClockConfig_STOP(void);
  
  /* Private functions ---------------------------------------------------------*/
  
  /*******************************************************************************
                         PCD BSP Routines
  *******************************************************************************/
  
  /**
    * @brief  Initializes the PCD MSP.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_MspInit(PCD_HandleTypeDef *hpcd)
  {
    GPIO_InitTypeDef  GPIO_InitStruct;
  
    /* Configure USB FS GPIOs */
    __HAL_RCC_GPIOA_CLK_ENABLE();
  
    /* Configure DM DP Pins */
    GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  #if 0
    /* Configure VBUS Pin */
    GPIO_InitStruct.Pin = GPIO_PIN_9;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  
    /* Configure ID pin */
    GPIO_InitStruct.Pin = GPIO_PIN_10;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
    GPIO_InitStruct.Pull = GPIO_PULLUP;
    GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
  #endif
    /* Enable USB FS Clocks */
    __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
  
    /* Set USBFS Interrupt priority */
    HAL_NVIC_SetPriority(OTG_FS_IRQn, 5, 0);
  
    /* Enable USBFS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
  
    if(hpcd->Init.low_power_enable == 1)
    {
      /* Enable EXTI Line 18 for USB wakeup*/
      __HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
      __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_RISING_EDGE();
      __HAL_USB_OTG_FS_WAKEUP_EXTI_ENABLE_IT();
  
      /* Set EXTI Wakeup Interrupt priority*/
      HAL_NVIC_SetPriority(OTG_FS_WKUP_IRQn, 0, 0);
  
      /* Enable EXTI Interrupt */
      HAL_NVIC_EnableIRQ(OTG_FS_WKUP_IRQn);
    }
  }
  
  /**
    * @brief  De-Initializes the PCD MSP.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_MspDeInit(PCD_HandleTypeDef *hpcd)
  {
    /* Disable USB FS Clock */
    __HAL_RCC_USB_OTG_FS_CLK_DISABLE();
    __HAL_RCC_SYSCFG_CLK_DISABLE();
  }
  
  /*******************************************************************************
                         LL Driver Callbacks (PCD -> USB Device Library)
  *******************************************************************************/
  
  /**
    * @brief  SetupStage callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
  {
    USBD_LL_SetupStage(hpcd->pData, (uint8_t *)hpcd->Setup);
  }
  
  /**
    * @brief  DataOut Stage callback.
    * @param  hpcd: PCD handle
    * @param  epnum: Endpoint Number
    * @retval None
    */
  void HAL_PCD_DataOutStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
  {
    USBD_LL_DataOutStage(hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
  }
  
  /**
    * @brief  DataIn Stage callback.
    * @param  hpcd: PCD handle
    * @param  epnum: Endpoint Number
    * @retval None
    */
  void HAL_PCD_DataInStageCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
  {
    USBD_LL_DataInStage(hpcd->pData, epnum, hpcd->IN_ep[epnum].xfer_buff);
  }
  
  /**
    * @brief  SOF callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_SOFCallback(PCD_HandleTypeDef *hpcd)
  {
    USBD_LL_SOF(hpcd->pData);
  }
  
  /**
    * @brief  Reset callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_ResetCallback(PCD_HandleTypeDef *hpcd)
  {
    USBD_SpeedTypeDef speed = USBD_SPEED_FULL;
  
    /* Set USB Current Speed */
    switch(hpcd->Init.speed)
    {
    case PCD_SPEED_HIGH:
      speed = USBD_SPEED_HIGH;
      break;
  
    case PCD_SPEED_FULL:
      speed = USBD_SPEED_FULL;
      break;
  
    default:
      speed = USBD_SPEED_FULL;
      break;
    }
  
    /* Reset Device */
    USBD_LL_Reset(hpcd->pData);
  
    USBD_LL_SetSpeed(hpcd->pData, speed);
  }
  
  /**
    * @brief  Suspend callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
  {
    __HAL_PCD_GATE_PHYCLOCK(hpcd);
    USBD_LL_Suspend(hpcd->pData);
  
    /*Enter in STOP mode */
    if (hpcd->Init.low_power_enable)
    {
      /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register */
      SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
    }
  }
  
  /**
    * @brief  Resume callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
  {
    USBD_LL_Resume(hpcd->pData);
  }
  
  /**
    * @brief  ISOOUTIncomplete callback.
    * @param  hpcd: PCD handle
    * @param  epnum: Endpoint Number
    * @retval None
    */
  void HAL_PCD_ISOOUTIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
  {
    USBD_LL_IsoOUTIncomplete(hpcd->pData, epnum);
  }
  
  /**
    * @brief  ISOINIncomplete callback.
    * @param  hpcd: PCD handle
    * @param  epnum: Endpoint Number
    * @retval None
    */
  void HAL_PCD_ISOINIncompleteCallback(PCD_HandleTypeDef *hpcd, uint8_t epnum)
  {
    USBD_LL_IsoINIncomplete(hpcd->pData, epnum);
  }
  
  /**
    * @brief  ConnectCallback callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
  {
    USBD_LL_DevConnected(hpcd->pData);
  }
  
  /**
    * @brief  Disconnect callback.
    * @param  hpcd: PCD handle
    * @retval None
    */
  void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
  {
    USBD_LL_DevDisconnected(hpcd->pData);
  }
  
  
  
  /**
    * @brief  This function handles USB-On-The-Go FS global interrupt request.
    * @param  None
    * @retval None
    */
  void OTG_FS_IRQHandler(void)
  {
    HAL_PCD_IRQHandler(&g_hpcd);
  }
  
  /**
    * @brief  This function handles USB OTG FS Wakeup IRQ Handler.
    * @param  None
    * @retval None
    */
  
  void OTG_FS_WKUP_IRQHandler(void)
  {
    if((&g_hpcd)->Init.low_power_enable)
    {
      /* Reset SLEEPDEEP bit of Cortex System Control Register */
      SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
  
      /* Configures system clock after wake-up from STOP: enable HSE, PLL and select
      PLL as system clock source (HSE and PLL are disabled in STOP mode) */
      SystemClock_Config();
  
      /* ungate PHY clock */
       __HAL_PCD_UNGATE_PHYCLOCK((&g_hpcd));
    }
  
    /* Clear EXTI pending Bit*/
    __HAL_USB_OTG_FS_WAKEUP_EXTI_CLEAR_FLAG();
  }
  
  /*******************************************************************************
                         LL Driver Interface (USB Device Library --> PCD)
  *******************************************************************************/
  
  /**
    * @brief  Initializes the Low Level portion of the Device driver.
    * @param  pdev: Device handle
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_Init(USBD_HandleTypeDef *pdev)
  {
    /* Set LL Driver parameters */
    g_hpcd.Instance = USB_OTG_FS;
    g_hpcd.Init.dev_endpoints = 6;
    g_hpcd.Init.use_dedicated_ep1 = 0;
    //g_hpcd.Init.ep0_mps = 0x40;
    g_hpcd.Init.ep0_mps = 0U;
    g_hpcd.Init.dma_enable = 0;
    g_hpcd.Init.low_power_enable = 0;
    g_hpcd.Init.phy_itface = PCD_PHY_EMBEDDED;
    g_hpcd.Init.Sof_enable = 0;
    g_hpcd.Init.speed = PCD_SPEED_FULL;
    g_hpcd.Init.vbus_sensing_enable = 0;
    g_hpcd.Init.lpm_enable = 0;
    /* Link The driver to the stack */
    g_hpcd.pData = pdev;
    pdev->pData = &g_hpcd;
  
    /* Initialize LL Driver */
    HAL_PCD_Init(&g_hpcd);
  
    HAL_PCDEx_SetRxFiFo(&g_hpcd, 0x80);
    HAL_PCDEx_SetTxFiFo(&g_hpcd, 0, 0x40);
    HAL_PCDEx_SetTxFiFo(&g_hpcd, 1, 0x80);
  
    return USBD_OK;
  }
  
  /**
    * @brief  De-Initializes the Low Level portion of the Device driver.
    * @param  pdev: Device handle
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_DeInit(USBD_HandleTypeDef *pdev)
  {
    HAL_PCD_DeInit(pdev->pData);
    return USBD_OK;
  }
  
  /**
    * @brief  Starts the Low Level portion of the Device driver.
    * @param  pdev: Device handle
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_Start(USBD_HandleTypeDef *pdev)
  {
    HAL_PCD_Start(pdev->pData);
    return USBD_OK;
  }
  
  /**
    * @brief  Stops the Low Level portion of the Device driver.
    * @param  pdev: Device handle
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_Stop(USBD_HandleTypeDef *pdev)
  {
    HAL_PCD_Stop(pdev->pData);
    return USBD_OK;
  }
  
  /**
    * @brief  Opens an endpoint of the Low Level Driver.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @param  ep_type: Endpoint Type
    * @param  ep_mps: Endpoint Max Packet Size
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_OpenEP(USBD_HandleTypeDef *pdev,
                                    uint8_t ep_addr,
                                    uint8_t ep_type,
                                    uint16_t ep_mps)
  {
    HAL_PCD_EP_Open(pdev->pData,
                    ep_addr,
                    ep_mps,
                    ep_type);
  
    return USBD_OK;
  }
  
  /**
    * @brief  Closes an endpoint of the Low Level Driver.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_CloseEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
  {
    HAL_PCD_EP_Close(pdev->pData, ep_addr);
    return USBD_OK;
  }
  
  /**
    * @brief  Flushes an endpoint of the Low Level Driver.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_FlushEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
  {
    HAL_PCD_EP_Flush(pdev->pData, ep_addr);
    return USBD_OK;
  }
  
  /**
    * @brief  Sets a Stall condition on an endpoint of the Low Level Driver.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_StallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
  {
    HAL_PCD_EP_SetStall(pdev->pData, ep_addr);
    return USBD_OK;
  }
  
  /**
    * @brief  Clears a Stall condition on an endpoint of the Low Level Driver.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_ClearStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
  {
    HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);
    return USBD_OK;
  }
  
  /**
    * @brief  Returns Stall condition.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval Stall (1: Yes, 0: No)
    */
  uint8_t USBD_LL_IsStallEP(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
  {
    PCD_HandleTypeDef *hpcd = pdev->pData;
  
    if((ep_addr & 0x80) == 0x80)
    {
      return hpcd->IN_ep[ep_addr & 0x7F].is_stall;
    }
    else
    {
      return hpcd->OUT_ep[ep_addr & 0x7F].is_stall;
    }
  }
  
  /**
    * @brief  Assigns a USB address to the device.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev, uint8_t dev_addr)
  {
    HAL_PCD_SetAddress(pdev->pData, dev_addr);
    return USBD_OK;
  }
  
  /**
    * @brief  Transmits data over an endpoint.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @param  pbuf: Pointer to data to be sent
    * @param  size: Data size
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_Transmit(USBD_HandleTypeDef *pdev,
                                      uint8_t ep_addr,
                                      uint8_t *pbuf,
                                      uint16_t size)
  {
    HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
    return USBD_OK;
  }
  
  /**
    * @brief  Prepares an endpoint for reception.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @param  pbuf: Pointer to data to be received
    * @param  size: Data size
    * @retval USBD Status
    */
  USBD_StatusTypeDef USBD_LL_PrepareReceive(USBD_HandleTypeDef *pdev,
                                            uint8_t ep_addr,
                                            uint8_t *pbuf,
                                            uint16_t size)
  {
    HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
    return USBD_OK;
  }
  
  /**
    * @brief  Returns the last transferred packet size.
    * @param  pdev: Device handle
    * @param  ep_addr: Endpoint Number
    * @retval Received Data Size
    */
  uint32_t USBD_LL_GetRxDataSize(USBD_HandleTypeDef *pdev, uint8_t ep_addr)
  {
    return HAL_PCD_EP_GetRxCount(pdev->pData, ep_addr);
  }
  
  /**
    * @brief  Delays routine for the USB Device Library.
    * @param  Delay: Delay in ms
    * @retval None
    */
  void USBD_LL_Delay(uint32_t Delay)
  {
    HAL_Delay(Delay);
  }
  
  #endif // USBCON
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  