text: /**
    ******************************************************************************
    * @file    stm32f7xx_ll_usb.h
    * @author  MCD Application Team
    * @brief   Header file of USB Low Layer HAL module.
    ******************************************************************************
    * @attention
    *
    * <h2><center>&copy; Copyright (c) 2017 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
    *
    ******************************************************************************
    */
  
  /* 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"
  
  #if defined (USB_OTG_FS) || defined (USB_OTG_HS)
  /** @addtogroup STM32F7xx_HAL_Driver
    * @{
    */
  
  /** @addtogroup USB_LL
    * @{
    */
  
  /* Exported types ------------------------------------------------------------*/
  
  /**
    * @brief  USB Mode definition
    */
  #if defined (USB_OTG_FS) || defined (USB_OTG_HS)
  
  typedef enum
  {
    USB_DEVICE_MODE  = 0,
    USB_HOST_MODE    = 1,
    USB_DRD_MODE     = 2
  } USB_OTG_ModeTypeDef;
  
  /**
    * @brief  URB States definition
    */
  typedef enum
  {
    URB_IDLE = 0,
    URB_DONE,
    URB_NOTREADY,
    URB_NYET,
    URB_ERROR,
    URB_STALL
  } USB_OTG_URBStateTypeDef;
  
  /**
    * @brief  Host channel States  definition
    */
  typedef enum
  {
    HC_IDLE = 0,
    HC_XFRC,
    HC_HALTED,
    HC_NAK,
    HC_NYET,
    HC_STALL,
    HC_XACTERR,
    HC_BBLERR,
    HC_DATATGLERR
  } USB_OTG_HCStateTypeDef;
  
  /**
    * @brief  USB OTG 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 used only for OTG HS.        */
  
    uint32_t ep0_mps;                 /*!< Set the Endpoint 0 Max Packet size.                                    */
  
    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 battery_charging_enable; /*!< Enable or disable Battery charging.                                    */
  
    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;
  #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
  
  
  /* Exported constants --------------------------------------------------------*/
  
  /** @defgroup PCD_Exported_Constants PCD Exported Constants
    * @{
    */
  
  #if defined (USB_OTG_FS) || defined (USB_OTG_HS)
  /** @defgroup USB_OTG_CORE VERSION ID
    * @{
    */
  #define USB_OTG_CORE_ID_300A          0x4F54300AU
  #define USB_OTG_CORE_ID_310A          0x4F54310AU
  /**
    * @}
    */
  
  /** @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_LL Device Speed
    * @{
    */
  #define USBD_HS_SPEED                          0U
  #define USBD_HSINFS_SPEED                      1U
  #define USBH_HS_SPEED                          0U
  #define USBD_FS_SPEED                          2U
  #define USBH_FSLS_SPEED                        1U
  /**
    * @}
    */
  
  /** @defgroup USB_LL_Core_Speed USB Low Layer Core Speed
    * @{
    */
  #define USB_OTG_SPEED_HIGH                     0U
  #define USB_OTG_SPEED_HIGH_IN_FULL             1U
  #define USB_OTG_SPEED_FULL                     3U
  /**
    * @}
    */
  
  /** @defgroup USB_LL_Core_PHY USB Low Layer Core PHY
    * @{
    */
  #define USB_OTG_ULPI_PHY                       1U
  #define USB_OTG_EMBEDDED_PHY                   2U
  #define USB_OTG_HS_EMBEDDED_PHY                3U
  
  #if !defined  (USB_HS_PHYC_TUNE_VALUE)
  #define USB_HS_PHYC_TUNE_VALUE        0x00000F13U /*!< Value of USB HS PHY Tune */
  #endif /* USB_HS_PHYC_TUNE_VALUE */
  /**
    * @}
    */
  
  /** @defgroup USB_LL_Turnaround_Timeout Turnaround Timeout Value
    * @{
    */
  #ifndef USBD_HS_TRDT_VALUE
  #define USBD_HS_TRDT_VALUE                     9U
  #endif /* USBD_HS_TRDT_VALUE */
  #ifndef USBD_FS_TRDT_VALUE
  #define USBD_FS_TRDT_VALUE                     5U
  #define USBD_DEFAULT_TRDT_VALUE                9U
  #endif /* USBD_HS_TRDT_VALUE */
  /**
    * @}
    */
  
  /** @defgroup USB_LL_Core_MPS USB Low Layer 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_LL_Core_PHY_Frequency USB Low Layer Core PHY Frequency
    * @{
    */
  #define DSTS_ENUMSPD_HS_PHY_30MHZ_OR_60MHZ     (0U << 1)
  #define DSTS_ENUMSPD_FS_PHY_30MHZ_OR_60MHZ     (1U << 1)
  #define DSTS_ENUMSPD_FS_PHY_48MHZ              (3U << 1)
  /**
    * @}
    */
  
  /** @defgroup USB_LL_CORE_Frame_Interval USB Low Layer 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_LL_EP0_MPS USB Low Layer EP0 MPS
    * @{
    */
  #define DEP0CTL_MPS_64                         0U
  #define DEP0CTL_MPS_32                         1U
  #define DEP0CTL_MPS_16                         2U
  #define DEP0CTL_MPS_8                          3U
  /**
    * @}
    */
  
  /** @defgroup USB_LL_EP_Speed USB Low Layer EP Speed
    * @{
    */
  #define EP_SPEED_LOW                           0U
  #define EP_SPEED_FULL                          1U
  #define EP_SPEED_HIGH                          2U
  /**
    * @}
    */
  
  /** @defgroup USB_LL_EP_Type USB Low Layer 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_LL_STS_Defines USB Low Layer 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 USB_LL_HCFG_SPEED_Defines USB Low Layer HCFG Speed Defines
    * @{
    */
  #define HCFG_30_60_MHZ                         0U
  #define HCFG_48_MHZ                            1U
  #define HCFG_6_MHZ                             2U
  /**
    * @}
    */
  
  /** @defgroup USB_LL_HPRT0_PRTSPD_SPEED_Defines USB Low Layer 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_BASE + USB_OTG_PCGCCTL_BASE)
  #define USBx_HPRT0      *(__IO uint32_t *)((uint32_t)USBx_BASE + USB_OTG_HOST_PORT_BASE)
  
  #define USBx_DEVICE     ((USB_OTG_DeviceTypeDef *)(USBx_BASE + USB_OTG_DEVICE_BASE))
  #define USBx_INEP(i)    ((USB_OTG_INEndpointTypeDef *)(USBx_BASE + USB_OTG_IN_ENDPOINT_BASE + ((i) * USB_OTG_EP_REG_SIZE)))
  #define USBx_OUTEP(i)   ((USB_OTG_OUTEndpointTypeDef *)(USBx_BASE + USB_OTG_OUT_ENDPOINT_BASE + ((i) * USB_OTG_EP_REG_SIZE)))
  #define USBx_DFIFO(i)   *(__IO uint32_t *)(USBx_BASE + USB_OTG_FIFO_BASE + ((i) * USB_OTG_FIFO_SIZE))
  
  #define USBx_HOST       ((USB_OTG_HostTypeDef *)(USBx_BASE + USB_OTG_HOST_BASE))
  #define USBx_HC(i)      ((USB_OTG_HostChannelTypeDef *)(USBx_BASE + USB_OTG_HOST_CHANNEL_BASE + ((i) * USB_OTG_HOST_CHANNEL_SIZE)))
  #define USBPHYC         ((USBPHYC_GlobalTypeDef *)((uint32_t )USB_PHY_HS_CONTROLLER_BASE))
  #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
  
  #define EP_ADDR_MSK                          0xFU
  /**
    * @}
    */
  
  /* Exported macro ------------------------------------------------------------*/
  /** @defgroup USB_LL_Exported_Macros USB Low Layer Exported Macros
    * @{
    */
  #if defined (USB_OTG_FS) || defined (USB_OTG_HS)
  #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__))
  #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
  /**
    * @}
    */
  
  /* Exported functions --------------------------------------------------------*/
  /** @addtogroup USB_LL_Exported_Functions USB Low Layer Exported Functions
    * @{
    */
  #if defined (USB_OTG_FS) || defined (USB_OTG_HS)
  HAL_StatusTypeDef USB_CoreInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg);
  HAL_StatusTypeDef USB_DevInit(USB_OTG_GlobalTypeDef *USBx, USB_OTG_CfgTypeDef cfg);
  HAL_StatusTypeDef USB_EnableGlobalInt(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_DisableGlobalInt(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_SetTurnaroundTime(USB_OTG_GlobalTypeDef *USBx, uint32_t hclk, uint8_t speed);
  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);
  HAL_StatusTypeDef USB_ActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx);
  HAL_StatusTypeDef USB_DeActivateRemoteWakeup(USB_OTG_GlobalTypeDef *USBx);
  #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  
  /**
    * @}
    */
  #endif /* defined (USB_OTG_FS) || defined (USB_OTG_HS) */
  
  #ifdef __cplusplus
  }
  #endif
  
  
  #endif /* STM32F7xx_LL_USB_H */
  
  /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
  