/**
  ******************************************************************************
  * @file    stm32f2xx_ll_usb.h
  * @author  MCD Application Team
  * @brief   Header file of USB Low Layer HAL module.
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2016 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.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F2xx_LL_USB_H
#define STM32F2xx_LL_USB_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f2xx_hal_def.h"

#if defined (USB_OTG_FS) || defined (USB_OTG_HS)
/** @addtogroup STM32F2xx_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 Instance 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 PCD_Speed/HCD_Speed
                                                                                 (HCD_SPEED_xxx, HCD_SPEED_xxx) */

  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 PCD_PHY_Module/HCD_PHY_Module  */

  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_LL_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_size;            /*!< requested transfer size                                                  */

  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 Channel speed.
                                     This parameter can be any value of @ref HCD_Device_Speed:
                                                                             (HCD_DEVICE_SPEED_xxx)             */

  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_LL_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  XferSize;             /*!< OTG Channel transfer size.                                                   */

  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
/**
  * @}
  */

/** @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 EP_MPS_64                        0U
#define EP_MPS_32                        1U
#define EP_MPS_16                        2U
#define EP_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)))

#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 /* STM32F2xx_LL_USB_H */