/**
  ******************************************************************************
  * @file    usbd_conf_template.c
  * @author  MCD Application Team
  * @brief   USB Device configuration and interface file
  *          This template should be copied to the user folder,
  *          renamed and customized following user needs.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2015 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "usbd_core.h"
#include "usbd_msc.h" /* Include class header file */
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
PCD_HandleTypeDef USBD_PCD_Handle;

/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

/*******************************************************************************
                       LL Driver Callbacks (PCD -> USB Device Library)
*******************************************************************************/
/* MSP Init */

void HAL_PCD_MspInit(PCD_HandleTypeDef* pcdHandle)
{
  if(pcdHandle->Instance==USB) {
    /* Peripheral clock enable */
    __HAL_RCC_USB_CLK_ENABLE();

    /* Peripheral interrupt init */
    HAL_NVIC_SetPriority(USB_IRQn, 0, 0);
    HAL_NVIC_EnableIRQ(USB_IRQn);
  }
}

void HAL_PCD_MspDeInit(PCD_HandleTypeDef* pcdHandle)
{
  if(pcdHandle->Instance==USB) {
    /* Peripheral clock disable */
    __HAL_RCC_USB_CLK_DISABLE();

    /* Peripheral interrupt Deinit*/
    HAL_NVIC_DisableIRQ(USB_IRQn);
  }
}

/**
  * @brief  Setup Stage callback
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SetupStageCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_SetupStage((USBD_HandleTypeDef*)hpcd->pData, (uint8_t *)hpcd->Setup);
}

/**
  * @brief  Data Out 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((USBD_HandleTypeDef*)hpcd->pData, epnum, hpcd->OUT_ep[epnum].xfer_buff);
}

/**
  * @brief  Data In 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((USBD_HandleTypeDef*)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((USBD_HandleTypeDef*)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_FULL:
    speed = USBD_SPEED_FULL;
    break;
	
  default:
    speed = USBD_SPEED_FULL;
    break;    
  }

  USBD_LL_SetSpeed((USBD_HandleTypeDef*)hpcd->pData, speed);
  
  /*Reset Device*/
  USBD_LL_Reset((USBD_HandleTypeDef*)hpcd->pData);
}

/**
  * @brief  Suspend callback.
  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
  /* Inform USB library that core enters in suspend Mode */
  USBD_LL_Suspend((USBD_HandleTypeDef*)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.
  * When Low power mode is enabled the debug cannot be used (IAR, Keil doesn't support it)
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
  if (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));  
  }

  USBD_LL_Resume((USBD_HandleTypeDef*)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((USBD_HandleTypeDef*)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((USBD_HandleTypeDef*)hpcd->pData, epnum);
}

/**
  * @brief  ConnectCallback callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_DevConnected((USBD_HandleTypeDef*)hpcd->pData);
}

/**
  * @brief  Disconnect callback.
  * @param  hpcd: PCD handle
  * @retval None
  */
void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd)
{
  USBD_LL_DevDisconnected((USBD_HandleTypeDef*)hpcd->pData);
}

/*******************************************************************************
                       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)
{
  /* Init USB_IP */
  /* Link The driver to the stack */
  USBD_PCD_Handle.pData = pdev;
  pdev->pData = &USBD_PCD_Handle;

  USBD_PCD_Handle.Instance = USB;
  USBD_PCD_Handle.Init.dev_endpoints = 8;
  USBD_PCD_Handle.Init.speed = PCD_SPEED_FULL;
  USBD_PCD_Handle.Init.ep0_mps = EP_MPS_64;
  USBD_PCD_Handle.Init.phy_itface = PCD_PHY_EMBEDDED;
  USBD_PCD_Handle.Init.low_power_enable = DISABLE;
  USBD_PCD_Handle.Init.lpm_enable = DISABLE;
  USBD_PCD_Handle.Init.battery_charging_enable = DISABLE;
  
  if (HAL_PCD_Init(&USBD_PCD_Handle) != HAL_OK)
  {
    return(USBD_FAIL);
  }

  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x00 , PCD_SNG_BUF, 0x18);
  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x80 , PCD_SNG_BUF, 0x58);
  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x81 , PCD_SNG_BUF, 0x98);
  HAL_PCDEx_PMAConfig((PCD_HandleTypeDef*)pdev->pData , 0x01 , PCD_SNG_BUF, 0xD8);

  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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
 
  hal_status = HAL_PCD_DeInit(pdev->pData);
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
 }

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
 
  hal_status = HAL_PCD_Start(pdev->pData);
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
 
  hal_status = HAL_PCD_Stop(pdev->pData);
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Open(pdev->pData, 
                               ep_addr, 
                               ep_mps, 
                               ep_type);

  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
  
  hal_status = HAL_PCD_EP_Close(pdev->pData, ep_addr);
      
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
  
  hal_status = HAL_PCD_EP_Flush(pdev->pData, ep_addr);
      
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
  
  hal_status = HAL_PCD_EP_SetStall(pdev->pData, ep_addr);
      
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
  
  hal_status = HAL_PCD_EP_ClrStall(pdev->pData, ep_addr);  
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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 = (PCD_HandleTypeDef*) 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  dev_addr: Endpoint Number
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_SetUSBAddress(USBD_HandleTypeDef *pdev,
                                         uint8_t dev_addr)
{
  HAL_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;
  
  hal_status = HAL_PCD_SetAddress(pdev->pData, dev_addr);
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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, uint32_t size)
{
  HAL_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Transmit(pdev->pData, ep_addr, pbuf, size);
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status);
}

/**
  * @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,
                                          uint32_t size)
{
  HAL_StatusTypeDef hal_status = HAL_OK;
  USBD_StatusTypeDef usb_status = USBD_OK;

  hal_status = HAL_PCD_EP_Receive(pdev->pData, ep_addr, pbuf, size);
     
  switch(hal_status) {
    case HAL_OK :
      usb_status = USBD_OK;
    break;
    case HAL_ERROR :
      usb_status = USBD_FAIL;
    break;
    case HAL_BUSY :
      usb_status = USBD_BUSY;
    break;
    case HAL_TIMEOUT :
      usb_status = USBD_FAIL;
    break;
    default :
      usb_status = USBD_FAIL;
    break;
  }

  return(usb_status); 
}

/**
  * @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((PCD_HandleTypeDef*) pdev->pData, ep_addr));
}

#ifdef USBD_HS_TESTMODE_ENABLE
/**
  * @brief  Set High speed Test mode.
  * @param  pdev: Device handle
  * @param  testmode: test mode
  * @retval USBD Status
  */
USBD_StatusTypeDef USBD_LL_SetTestMode(USBD_HandleTypeDef *pdev, uint8_t testmode)
{
  return(USBD_OK);
}
#endif /* USBD_HS_TESTMODE_ENABLE */

/**
  * @brief  Static single allocation.
  * @param  size: Size of allocated memory
  * @retval None
  */
void *USBD_static_malloc(uint32_t size)
{
  static uint32_t mem[(sizeof(USBD_MSC_BOT_HandleTypeDef) / 4) + 1]; /* On 32-bit boundary */

  return(mem);
}

/**
  * @brief  Dummy memory free
  * @param  p: Pointer to allocated  memory address
  * @retval None
  */
void USBD_static_free(void *p)
{

}

/**
  * @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);
}