text: /**
    ******************************************************************************
    * @file    stm32f7xx_ll_usb.h
    * @author  MCD Application Team
    * @version V1.1.0
    * @date    22-April-2016
    * @brief   Header file of USB Core HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
    *
    * Redistribution and use in source and binary forms, with or without modification,
    * are permitted provided that the following conditions are met:
    *   1. Redistributions 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 its contributors
    *      may be used to endorse or promote products derived from this software
    *      without specific prior written permission.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
    * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
    *
    ******************************************************************************
    */ 
  
  /* Define to prevent recursive inclusion -------------------------------------*/
  #ifndef __STM32F7xx_LL_USB_H
  #define __STM32F7xx_LL_USB_H
  
  #ifdef __cplusplus
   extern "C" {
  #endif
  
  /* Includes ------------------------------------------------------------------*/
  #include "stm32f7xx_hal_def.h"
  
  /** @addtogroup STM32F7xx_HAL
    * @{
    */
  
  /** @addtogroup USB_Core
    * @{
    */ 
  
  /* Exported types ------------------------------------------------------------*/ 
  
  /** 
    * @brief  USB Mode definition  
    */  
  typedef enum 
  {
     USB_OTG_DEVICE_MODE  = 0U,
     USB_OTG_HOST_MODE    = 1U,
     USB_OTG_DRD_MODE     = 2U
     
  }USB_OTG_ModeTypeDef;
  
  /** 
    * @brief  URB States definition  
    */ 
  typedef enum {
    URB_IDLE = 0U,
    URB_DONE,
    URB_NOTREADY,
    URB_NYET,
    URB_ERROR,
    URB_STALL
      
  }USB_OTG_URBStateTypeDef;
  
  /** 
    * @brief  Host channel States  definition  
    */ 
  typedef enum {
    HC_IDLE = 0U,
    HC_XFRC,
    HC_HALTED,
    HC_NAK,
    HC_NYET,
    HC_STALL,
    HC_XACTERR,  
    HC_BBLERR,   
    HC_DATATGLERR
      
  }USB_OTG_HCStateTypeDef;
  
  /** 
    * @brief  PCD Initialization Structure definition  
    */
  typedef struct
  {
    uint32_t dev_endpoints;        /*!< Device Endpoints number.
                                        This parameter depends on the used USB core.   
                                        This parameter must be a number between Min_Data = 1 and Max_Data = 15 */    
    
    uint32_t Host_channels;        /*!< Host Channels number.
                                        This parameter Depends on the used USB core.   
                                        This parameter must be a number between Min_Data = 1 and Max_Data = 15 */       
  
    uint32_t speed;                /*!< USB Core speed.
                                        This parameter can be any value of @ref USB_Core_Speed_                */        
                                 
    uint32_t dma_enable;           /*!< Enable or disable of the USB embedded DMA.                             */            
  
    uint32_t ep0_mps;              /*!< Set the Endpoint 0 Max Packet size. 
                                        This parameter can be any value of @ref USB_EP0_MPS_                   */              
                         
    uint32_t phy_itface;           /*!< Select the used PHY interface.
                                        This parameter can be any value of @ref USB_Core_PHY_                  */ 
                                  
    uint32_t Sof_enable;           /*!< Enable or disable the output of the SOF signal.                        */     
                                 
    uint32_t low_power_enable;     /*!< Enable or disable the low power mode.                                  */
    
    uint32_t lpm_enable;           /*!< Enable or disable Link Power Management.                               */
                            
    uint32_t vbus_sensing_enable;  /*!< Enable or disable the VBUS Sensing feature.                            */ 
  
    uint32_t use_dedicated_ep1;    /*!< Enable or disable the use of the dedicated EP1 interrupt.              */      
    
    uint32_t use_external_vbus;    /*!< Enable or disable the use of the external VBUS.                        */   
    
  }USB_OTG_CfgTypeDef;
  
  typedef struct
  {
    uint8_t   num;            /*!< Endpoint number
                                  This parameter must be a number between Min_Data = 1 and Max_Data = 15    */ 
                                  
    uint8_t   is_in;          /*!< Endpoint direction
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1     */ 
    
    uint8_t   is_stall;       /*!< Endpoint stall condition
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1     */ 
    
    uint8_t   type;           /*!< Endpoint type
                                   This parameter can be any value of @ref USB_EP_Type_                     */ 
                                  
    uint8_t   data_pid_start; /*!< Initial data PID
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1     */
                                  
    uint8_t   even_odd_frame; /*!< IFrame parity
                                   This parameter must be a number between Min_Data = 0 and Max_Data = 1    */
                                  
    uint16_t  tx_fifo_num;    /*!< Transmission FIFO number
                                   This parameter must be a number between Min_Data = 1 and Max_Data = 15   */
                                  
    uint32_t  maxpacket;      /*!< Endpoint Max packet size
                                   This parameter must be a number between Min_Data = 0 and Max_Data = 64KB */
  
    uint8_t   *xfer_buff;     /*!< Pointer to transfer buffer                                               */
                                  
    uint32_t  dma_addr;       /*!< 32 bits aligned transfer buffer address                                  */
    
    uint32_t  xfer_len;       /*!< Current transfer length                                                  */
    
    uint32_t  xfer_count;     /*!< Partial transfer length in case of multi packet transfer                 */
  
  }USB_OTG_EPTypeDef;
  
  typedef struct
  {
    uint8_t   dev_addr ;     /*!< USB device address.
                                  This parameter must be a number between Min_Data = 1 and Max_Data = 255    */ 
  
    uint8_t   ch_num;        /*!< Host channel number.
                                  This parameter must be a number between Min_Data = 1 and Max_Data = 15     */ 
                                  
    uint8_t   ep_num;        /*!< Endpoint number.
                                  This parameter must be a number between Min_Data = 1 and Max_Data = 15     */ 
                                  
    uint8_t   ep_is_in;      /*!< Endpoint direction
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1      */ 
                                  
    uint8_t   speed;         /*!< USB Host speed.
                                  This parameter can be any value of @ref USB_Core_Speed_                    */
                                  
    uint8_t   do_ping;       /*!< Enable or disable the use of the PING protocol for HS mode.                */
    
    uint8_t   process_ping;  /*!< Execute the PING protocol for HS mode.                                     */
  
    uint8_t   ep_type;       /*!< Endpoint Type.
                                  This parameter can be any value of @ref USB_EP_Type_                       */
                                  
    uint16_t  max_packet;    /*!< Endpoint Max packet size.
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 64KB   */
                                  
    uint8_t   data_pid;      /*!< Initial data PID.
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1      */
                                  
    uint8_t   *xfer_buff;    /*!< Pointer to transfer buffer.                                                */
    
    uint32_t  xfer_len;      /*!< Current transfer length.                                                   */
    
    uint32_t  xfer_count;    /*!< Partial transfer length in case of multi packet transfer.                  */
    
    uint8_t   toggle_in;     /*!< IN transfer current toggle flag.
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1      */
                                  
    uint8_t   toggle_out;    /*!< OUT transfer current toggle flag
                                  This parameter must be a number between Min_Data = 0 and Max_Data = 1      */
    
    uint32_t  dma_addr;      /*!< 32 bits aligned transfer buffer address.                                   */
    
    uint32_t  ErrCnt;        /*!< Host channel error count.*/
    
    USB_OTG_URBStateTypeDef  urb_state;  /*!< URB state. 
                                             This parameter can be any value of @ref USB_OTG_URBStateTypeDef */ 
    
    USB_OTG_HCStateTypeDef   state;     /*!< Host Channel state. 
                                             This parameter can be any value of @ref USB_OTG_HCStateTypeDef  */ 
                                               
  }USB_OTG_HCTypeDef;
    
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup PCD_Exported_Constants PCD Exported Constants
    * @{
    */
  
  /** @defgroup USB_Core_Mode_ USB Core Mode
    * @{
    */
  #define USB_OTG_MODE_DEVICE                    0U
  #define USB_OTG_MODE_HOST                      1U
  #define USB_OTG_MODE_DRD                       2U
  /**
    * @}
    */
  
  /** @defgroup USB_Core_Speed_   USB Core Speed
    * @{
    */  
  #define USB_OTG_SPEED_HIGH                     0U
  #define USB_OTG_SPEED_HIGH_IN_FULL             1U
  #define USB_OTG_SPEED_LOW                      2U  
  #define USB_OTG_SPEED_FULL                     3U
  /**
    * @}
    */
    
  /** @defgroup USB_Core_PHY_   USB Core PHY
    * @{
    */   
  #define USB_OTG_ULPI_PHY                       1U
  #define USB_OTG_EMBEDDED_PHY                   2U
  /**
    * @}
    */
    
  /** @defgroup USB_Core_MPS_   USB Core MPS
    * @{
    */
  #define USB_OTG_HS_MAX_PACKET_SIZE           512U
  #define USB_OTG_FS_MAX_PACKET_SIZE           64U
  #define USB_OTG_MAX_EP0_SIZE                 64U
  /**
    * @}
    */
  
  /** @defgroup USB_Core_Phy_Frequency_   USB Core Phy Frequency
    * @{
    */
  #define DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ     (0 << 1)
  #define DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ     (1 << 1)
  #define DSTS_ENUMSPD_LS_PHY_6MHZ               (2 << 1)
  #define DSTS_ENUMSPD_FS_PHY_48MHZ              (3 << 1)
  /**
    * @}
    */
    
  /** @defgroup USB_CORE_Frame_Interval_   USB CORE Frame Interval
    * @{
    */  
  #define DCFG_FRAME_INTERVAL_80                 0U
  #define DCFG_FRAME_INTERVAL_85                 1U
  #define DCFG_FRAME_INTERVAL_90                 2U
  #define DCFG_FRAME_INTERVAL_95                 3U
  /**
    * @}
    */
  
  /** @defgroup USB_EP0_MPS_  USB EP0 MPS
    * @{
    */
  #define DEP0CTL_MPS_64                         0U
  #define DEP0CTL_MPS_32                         1U
  #define DEP0CTL_MPS_16                         2U
  #define DEP0CTL_MPS_8                          3U
  /**
    * @}
    */
  
  /** @defgroup USB_EP_Speed_  USB EP Speed
    * @{
    */
  #define EP_SPEED_LOW                           0U
  #define EP_SPEED_FULL                          1U
  #define EP_SPEED_HIGH                          2U
  /**
    * @}
    */
  
  /** @defgroup USB_EP_Type_  USB EP Type
    * @{
    */
  #define EP_TYPE_CTRL                           0U
  #define EP_TYPE_ISOC                           1U
  #define EP_TYPE_BULK                           2U
  #define EP_TYPE_INTR                           3U
  #define EP_TYPE_MSK                            3U
  /**
    * @}
    */
  
  /** @defgroup USB_STS_Defines_   USB STS Defines
    * @{
    */
  #define STS_GOUT_NAK                           1U
  #define STS_DATA_UPDT                          2U
  #define STS_XFER_COMP                          3U
  #define STS_SETUP_COMP                         4U
  #define STS_SETUP_UPDT                         6U
  /**
    * @}
    */
  
  /** @defgroup HCFG_SPEED_Defines_   HCFG SPEED Defines
    * @{
    */  
  #define HCFG_30_60_MHZ                         0U
  #define HCFG_48_MHZ                            1U
  #define HCFG_6_MHZ                             2U
  /**
    * @}
    */
      
  /** @defgroup HPRT0_PRTSPD_SPEED_Defines_  HPRT0 PRTSPD SPEED Defines
    * @{
    */    
  #define HPRT0_PRTSPD_HIGH_SPEED                0U
  #define HPRT0_PRTSPD_FULL_SPEED                1U
  #define HPRT0_PRTSPD_LOW_SPEED                 2U
  /**
    * @}
    */  
     
  #define HCCHAR_CTRL                            0U
  #define HCCHAR_ISOC                            1U
  #define HCCHAR_BULK                            2U
  #define HCCHAR_INTR                            3U
         
  #define HC_PID_DATA0                           0U
  #define HC_PID_DATA2                           1U
  #define HC_PID_DATA1                           2U
  #define HC_PID_SETUP                           3U
  
  #define GRXSTS_PKTSTS_IN                       2U
  #define GRXSTS_PKTSTS_IN_XFER_COMP             3U
  #define GRXSTS_PKTSTS_DATA_TOGGLE_ERR          5U
  #define GRXSTS_PKTSTS_CH_HALTED                7U
      
  #define USBx_PCGCCTL    *(__IO uint32_t *)((uint32_t)USBx + USB_OTG_PCGCCTL_BASE)
  #define USBx_HPRT0      *(__IO uint32_t *)((uint32_t)USBx + USB_OTG_HOST_PORT_BASE)
  
  #define USBx_DEVICE     ((USB_OTG_DeviceTypeDef *)((uint32_t )USBx + USB_OTG_DEVICE_BASE)) 
  #define USBx_INEP(i)    ((USB_OTG_INEndpointTypeDef *)((uint32_t)USBx + USB_OTG_IN_ENDPOINT_BASE + (i)*USB_OTG_EP_REG_SIZE))        
  #define USBx_OUTEP(i)   ((USB_OTG_OUTEndpointTypeDef *)((uint32_t)USBx + USB_OTG_OUT_ENDPOINT_BASE + (i)*USB_OTG_EP_REG_SIZE))        
  #define USBx_DFIFO(i)   *(__IO uint32_t *)((uint32_t)USBx + USB_OTG_FIFO_BASE + (i) * USB_OTG_FIFO_SIZE)
  
  #define USBx_HOST       ((USB_OTG_HostTypeDef *)((uint32_t )USBx + USB_OTG_HOST_BASE))  
  #define USBx_HC(i)      ((USB_OTG_HostChannelTypeDef *)((uint32_t)USBx + USB_OTG_HOST_CHANNEL_BASE + (i)*USB_OTG_HOST_CHANNEL_SIZE))
  /**
    * @}
    */
  /* Exported macro ------------------------------------------------------------*/
  #define USB_MASK_INTERRUPT(__INSTANCE__, __INTERRUPT__)     ((__INSTANCE__)->GINTMSK &= ~(__INTERRUPT__))
  #define USB_UNMASK_INTERRUPT(__INSTANCE__, __INTERRUPT__)   ((__INSTANCE__)->GINTMSK |= (__INTERRUPT__))
      
  #define CLEAR_IN_EP_INTR(__EPNUM__, __INTERRUPT__)          (USBx_INEP(__EPNUM__)->DIEPINT = (__INTERRUPT__))
  #define CLEAR_OUT_EP_INTR(__EPNUM__, __INTERRUPT__)         (USBx_OUTEP(__EPNUM__)->DOEPINT = (__INTERRUPT__))  
  
  /* Exported functions --------------------------------------------------------*/
  HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef Init);
  HAL_StatusTypeDef USB_DevInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef Init);
  HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_DisableGlobalInt(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_SetCurrentMode(USB_OTG_GlobalTypeDef *USBx , USB_OTG_ModeTypeDef mode);
  HAL_StatusTypeDef USB_SetDevSpeed(USB_OTG_GlobalTypeDef *USBx , uint8_t speed);
  HAL_StatusTypeDef USB_FlushRxFifo (USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_FlushTxFifo (USB_OTG_GlobalTypeDef *USBx, uint32_t num );
  HAL_StatusTypeDef USB_ActivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep);
  HAL_StatusTypeDef USB_DeactivateEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep);
  HAL_StatusTypeDef USB_ActivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep);
  HAL_StatusTypeDef USB_DeactivateDedicatedEndpoint(USB_OTG_GlobalTypeDef *USBx, USB_OTG_EPTypeDef *ep);
  HAL_StatusTypeDef USB_EPStartXfer(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep, uint8_t dma);
  HAL_StatusTypeDef USB_EP0StartXfer(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep, uint8_t dma);
  HAL_StatusTypeDef USB_WritePacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *src, uint8_t ch_ep_num, uint16_t len, uint8_t dma);
  void *            USB_ReadPacket(USB_OTG_GlobalTypeDef *USBx, uint8_t *dest, uint16_t len);
  HAL_StatusTypeDef USB_EPSetStall(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep);
  HAL_StatusTypeDef USB_EPClearStall(USB_OTG_GlobalTypeDef *USBx , USB_OTG_EPTypeDef *ep);
  HAL_StatusTypeDef USB_SetDevAddress (USB_OTG_GlobalTypeDef *USBx, uint8_t address);
  HAL_StatusTypeDef USB_DevConnect (USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_DevDisconnect (USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_StopDevice(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_ActivateSetup (USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_EP0_OutStart(USB_OTG_GlobalTypeDef *USBx, uint8_t dma, uint8_t *psetup);
  uint8_t           USB_GetDevSpeed(USB_OTG_GlobalTypeDef *USBx);
  uint32_t          USB_GetMode(USB_OTG_GlobalTypeDef *USBx);
  uint32_t          USB_ReadInterrupts (USB_OTG_GlobalTypeDef *USBx);
  uint32_t          USB_ReadDevAllOutEpInterrupt (USB_OTG_GlobalTypeDef *USBx);
  uint32_t          USB_ReadDevOutEPInterrupt (USB_OTG_GlobalTypeDef *USBx , uint8_t epnum);
  uint32_t          USB_ReadDevAllInEpInterrupt (USB_OTG_GlobalTypeDef *USBx);
  uint32_t          USB_ReadDevInEPInterrupt (USB_OTG_GlobalTypeDef *USBx , uint8_t epnum);
  void              USB_ClearInterrupts (USB_OTG_GlobalTypeDef *USBx, uint32_t interrupt);
  
  HAL_StatusTypeDef USB_HostInit (USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg);
  HAL_StatusTypeDef USB_InitFSLSPClkSel(USB_OTG_GlobalTypeDef *USBx , uint8_t freq);
  HAL_StatusTypeDef USB_ResetPort(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_DriveVbus (USB_OTG_GlobalTypeDef *USBx, uint8_t state);
  uint32_t          USB_GetHostSpeed (USB_OTG_GlobalTypeDef *USBx);
  uint32_t          USB_GetCurrentFrame (USB_OTG_GlobalTypeDef *USBx);
  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 USB_HC_StartXfer(USB_OTG_GlobalTypeDef *USBx, USB_OTG_HCTypeDef *hc, uint8_t dma);
  uint32_t          USB_HC_ReadInterrupt (USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_HC_Halt(USB_OTG_GlobalTypeDef *USBx , uint8_t hc_num);
  HAL_StatusTypeDef USB_DoPing(USB_OTG_GlobalTypeDef *USBx , uint8_t ch_num);
  HAL_StatusTypeDef USB_StopHost(USB_OTG_GlobalTypeDef *USBx);
  
  /**
    * @}
    */ 
  
  /**
    * @}
    */
    
  #ifdef __cplusplus
  }
  #endif
  
  
  #endif /* __STM32F7xx_LL_USB_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  