text: /**
    ******************************************************************************
    * @file    USB_Host/MSC_Standalone/Src/usbh_conf.c
    * @author  MCD Application Team
    * @brief   USB Host configuration file.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2017 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 ------------------------------------------------------------------*/
  #include "stm32f4xx_hal.h"
  #include "usbh_core.h"
  
  HCD_HandleTypeDef hhcd;
  
  /*******************************************************************************
                         HCD BSP Routines
  *******************************************************************************/
  /**
    * @brief  Initializes the HCD MSP.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_MspInit(HCD_HandleTypeDef *hhcd)
  {
    GPIO_InitTypeDef  GPIO_InitStruct;
    
    /* Configure USB FS GPIOs */
    __HAL_RCC_GPIOA_CLK_ENABLE();
    
    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); 
    
    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); 
    
    /* Configure POWER_SWITCH IO pin */
    __HAL_RCC_GPIOB_CLK_ENABLE();
    GPIO_InitStruct.Pin = GPIO_PIN_2;
    GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); 
    
    /* Enable USB FS Clocks */ 
    __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
    
    /* Set USBFS Interrupt priority */
    HAL_NVIC_SetPriority(OTG_FS_IRQn, 6, 0);
    
    /* Enable USBFS Interrupt */
    HAL_NVIC_EnableIRQ(OTG_FS_IRQn);
  }
  
  /**
    * @brief  DeInitializes the HCD MSP.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_MspDeInit(HCD_HandleTypeDef *hhcd)
  {
    /* Disable USB FS Clocks */ 
    __HAL_RCC_USB_OTG_FS_CLK_DISABLE();
  }
  
  /*******************************************************************************
                         LL Driver Callbacks (HCD -> USB Host Library)
  *******************************************************************************/
  
  /**
    * @brief  SOF callback.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_SOF_Callback(HCD_HandleTypeDef *hhcd)
  {
    USBH_LL_IncTimer (hhcd->pData);
  }
  
  /**
    * @brief  Connect callback.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_Connect_Callback(HCD_HandleTypeDef *hhcd)
  {
    USBH_LL_Connect(hhcd->pData);
  }
  
  /**
    * @brief  Disconnect callback.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_Disconnect_Callback(HCD_HandleTypeDef *hhcd)
  {
    USBH_LL_Disconnect(hhcd->pData);
  }
  
  /**
    * @brief  Port Port Enabled callback.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_PortEnabled_Callback(HCD_HandleTypeDef *hhcd)
  {
    USBH_LL_PortEnabled(hhcd->pData);
  } 
  
  
  /**
    * @brief  Port Port Disabled callback.
    * @param  hhcd: HCD handle
    * @retval None
    */
  void HAL_HCD_PortDisabled_Callback(HCD_HandleTypeDef *hhcd)
  {
    USBH_LL_PortDisabled(hhcd->pData);
  } 
  
  
  /**
    * @brief  Notify URB state change callback.
    * @param  hhcd: HCD handle
    * @param  chnum: Channel number 
    * @param  urb_state: URB State
    * @retval None
    */
  void HAL_HCD_HC_NotifyURBChange_Callback(HCD_HandleTypeDef *hhcd, uint8_t chnum, HCD_URBStateTypeDef urb_state)
  {
    /* To be used with OS to sync URB state with the global state machine */
  }
  
  /*******************************************************************************
                         LL Driver Interface (USB Host Library --> HCD)
  *******************************************************************************/
  /**
    * @brief  USBH_LL_Init 
    *         Initialize the Low Level portion of the Host driver.
    * @param  phost: Host handle
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_Init(USBH_HandleTypeDef *phost)
  {
    /* Set the LL Driver parameters */
    hhcd.Instance = USB_OTG_FS;
    hhcd.Init.Host_channels = 11; 
    hhcd.Init.dma_enable = 0;
    hhcd.Init.low_power_enable = 0;
    hhcd.Init.phy_itface = HCD_PHY_EMBEDDED; 
    hhcd.Init.Sof_enable = 0;
    hhcd.Init.speed = HCD_SPEED_FULL;
    hhcd.Init.vbus_sensing_enable = 0;
    hhcd.Init.lpm_enable = 0;
    
    /* Link the driver to the stack */
    hhcd.pData = phost;
    phost->pData = &hhcd;
    
    /* Initialize the LL Driver */
    HAL_HCD_Init(&hhcd);
    
    USBH_LL_SetTimer(phost, HAL_HCD_GetCurrentFrame(&hhcd));
    
    return USBH_OK;
  }
  
  /**
    * @brief  De-Initializes the Low Level portion of the Host driver.
    * @param  phost: Host handle
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_DeInit(USBH_HandleTypeDef *phost)
  {
    HAL_HCD_DeInit(phost->pData);
    return USBH_OK; 
  }
  
  /**
    * @brief  Starts the Low Level portion of the Host driver.   
    * @param  phost: Host handle
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_Start(USBH_HandleTypeDef *phost)
  {
    HAL_HCD_Start(phost->pData);
    return USBH_OK; 
  }
  
  /**
    * @brief  Stops the Low Level portion of the Host driver.
    * @param  phost: Host handle
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_Stop(USBH_HandleTypeDef *phost)
  {
    HAL_HCD_Stop(phost->pData);
    return USBH_OK; 
  }
  
  /**
    * @brief  Returns the USB Host Speed from the Low Level Driver.
    * @param  phost: Host handle
    * @retval USBH Speeds
    */
  USBH_SpeedTypeDef USBH_LL_GetSpeed(USBH_HandleTypeDef *phost)
  {
    USBH_SpeedTypeDef speed = USBH_SPEED_FULL;
    
    switch (HAL_HCD_GetCurrentSpeed(phost->pData))
    {
    case 0: 
      speed = USBH_SPEED_HIGH;
      break;
      
    case 1: 
      speed = USBH_SPEED_FULL;
      break;
      
    case 2: 
      speed = USBH_SPEED_LOW;
      break;
      
    default:
      speed = USBH_SPEED_FULL;
      break;
    }
    return speed;
  }
  
  /**
    * @brief  Resets the Host Port of the Low Level Driver.
    * @param  phost: Host handle
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_ResetPort (USBH_HandleTypeDef *phost)
  {
    HAL_HCD_ResetPort(phost->pData);
    return USBH_OK; 
  }
  
  /**
    * @brief  Returns the last transferred packet size.
    * @param  phost: Host handle
    * @param  pipe: Pipe index   
    * @retval Packet Size
    */
  uint32_t USBH_LL_GetLastXferSize(USBH_HandleTypeDef *phost, uint8_t pipe)
  {
    return HAL_HCD_HC_GetXferCount(phost->pData, pipe);
  }
  
  /**
    * @brief  Opens a pipe of the Low Level Driver.
    * @param  phost: Host handle
    * @param  pipe: Pipe index
    * @param  epnum: Endpoint Number
    * @param  dev_address: Device USB address
    * @param  speed: Device Speed 
    * @param  ep_type: Endpoint Type
    * @param  mps: Endpoint Max Packet Size
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_OpenPipe(USBH_HandleTypeDef *phost, 
                                      uint8_t pipe,
                                      uint8_t epnum,
                                      uint8_t dev_address,
                                      uint8_t speed,
                                      uint8_t ep_type,
                                      uint16_t mps)
  {
    HAL_HCD_HC_Init(phost->pData,
                    pipe,
                    epnum,
                    dev_address,
                    speed,
                    ep_type,
                    mps);
    return USBH_OK; 
  }
  
  /**
    * @brief  Closes a pipe of the Low Level Driver.
    * @param  phost: Host handle
    * @param  pipe: Pipe index
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_ClosePipe(USBH_HandleTypeDef *phost, uint8_t pipe)
  {
    HAL_HCD_HC_Halt(phost->pData, pipe);
    return USBH_OK;
  }
  
  /**
    * @brief  Submits a new URB to the low level driver.
    * @param  phost: Host handle
    * @param  pipe: Pipe index    
    *          This parameter can be a value from 1 to 15
    * @param  direction: Channel number
    *          This parameter can be one of these values:
    *           0: Output 
    *           1: Input
    * @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  token: Endpoint Type
    *          This parameter can be one of these values:
    *            @arg 0: PID_SETUP
    *            @arg 1: PID_DATA
    * @param  pbuff: pointer to URB data
    * @param  length: length of URB data
    * @param  do_ping: activate do ping protocol (for high speed only)
    *          This parameter can be one of these values:
    *           0: do ping inactive 
    *           1: do ping active 
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_SubmitURB(USBH_HandleTypeDef *phost, 
                                       uint8_t pipe, 
                                       uint8_t direction,
                                       uint8_t ep_type,  
                                       uint8_t token, 
                                       uint8_t* pbuff, 
                                       uint16_t length,
                                       uint8_t do_ping) 
  {
    HAL_HCD_HC_SubmitRequest(phost->pData,
                             pipe, 
                             direction,
                             ep_type,  
                             token, 
                             pbuff, 
                             length,
                             do_ping);
    return USBH_OK;   
  }
  
  /**
    * @brief  Gets a URB state from the low level driver.
    * @param  phost: Host handle
    * @param  pipe: Pipe index
    *          This parameter can be a value from 1 to 15
    * @retval URB state
    *          This parameter can be one of these values:
    *            @arg URB_IDLE
    *            @arg URB_DONE
    *            @arg URB_NOTREADY
    *            @arg URB_NYET 
    *            @arg URB_ERROR  
    *            @arg URB_STALL      
    */
  USBH_URBStateTypeDef USBH_LL_GetURBState(USBH_HandleTypeDef *phost, uint8_t pipe) 
  {
    return (USBH_URBStateTypeDef)HAL_HCD_HC_GetURBState (phost->pData, pipe);
  }
  
  /**
    * @brief  Drives VBUS.
    * @param  phost: Host handle
    * @param  state: VBUS state
    *          This parameter can be one of these values:
    *           0: VBUS Active 
    *           1: VBUS Inactive
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_DriverVBUS(USBH_HandleTypeDef *phost, uint8_t state)
  {
    if(state == 0)
    {
      HAL_GPIO_WritePin(GPIOB, GPIO_PIN_2, GPIO_PIN_RESET);
    }
    else
    {
      HAL_GPIO_WritePin(GPIOB, GPIO_PIN_2, GPIO_PIN_SET);
    }
    HAL_Delay(200);
    return USBH_OK;  
  }
  
  /**
    * @brief  Sets toggle for a pipe.
    * @param  phost: Host handle
    * @param  pipe: Pipe index   
    * @param  toggle: toggle (0/1)
    * @retval USBH Status
    */
  USBH_StatusTypeDef USBH_LL_SetToggle(USBH_HandleTypeDef *phost, uint8_t pipe, uint8_t toggle)
  {
    if(hhcd.hc[pipe].ep_is_in)
    {
      hhcd.hc[pipe].toggle_in = toggle;
    }
    else
    {
      hhcd.hc[pipe].toggle_out = toggle;
    }
    return USBH_OK; 
  }
  
  /**
    * @brief  Returns the current toggle of a pipe.
    * @param  phost: Host handle
    * @param  pipe: Pipe index
    * @retval toggle (0/1)
    */
  uint8_t USBH_LL_GetToggle(USBH_HandleTypeDef *phost, uint8_t pipe)
  {
    uint8_t toggle = 0;
    
    if(hhcd.hc[pipe].ep_is_in)
    {
      toggle = hhcd.hc[pipe].toggle_in;
    }
    else
    {
      toggle = hhcd.hc[pipe].toggle_out;
    }
    return toggle; 
  }
  
  /**
    * @brief  Delay routine for the USB Host Library
    * @param  Delay: Delay in ms
    * @retval None
    */
  void USBH_Delay(uint32_t Delay)
  {
    HAL_Delay(Delay);  
  }
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  