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[mirror_edk2.git] / MdeModulePkg / Bus / Pci / UhciDxe / UhciSched.h

/** @file\r
\r
  The definition for EHCI register operation routines.\r
\r
Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#ifndef _EFI_UHCI_SCHED_H_\r
#define _EFI_UHCI_SCHED_H_\r
\r
#define UHCI_ASYNC_INT_SIGNATURE  SIGNATURE_32 ('u', 'h', 'c', 'a')\r
//\r
// The failure mask for USB transfer return status. If any of\r
// these bit is set, the transfer failed. EFI_USB_ERR_NOEXECUTE\r
// and EFI_USB_ERR_NAK are not considered as error condition:\r
// the transfer is still going on.\r
//\r
#define USB_ERR_FAIL_MASK  (EFI_USB_ERR_STALL   | EFI_USB_ERR_BUFFER | \\r
                            EFI_USB_ERR_BABBLE  | EFI_USB_ERR_CRC    | \\r
                            EFI_USB_ERR_TIMEOUT | EFI_USB_ERR_BITSTUFF | \\r
                            EFI_USB_ERR_SYSTEM)\r
\r
//\r
// Structure to return the result of UHCI QH execution.\r
// Result is the final result of the QH's QTD. NextToggle\r
// is the next data toggle to use. Complete is the actual\r
// length of data transferred.\r
//\r
typedef struct {\r
  UINT32    Result;\r
  UINT8     NextToggle;\r
  UINTN     Complete;\r
} UHCI_QH_RESULT;\r
\r
typedef struct _UHCI_ASYNC_REQUEST UHCI_ASYNC_REQUEST;\r
\r
//\r
// Structure used to manager the asynchronous interrupt transfers.\r
//\r
struct _UHCI_ASYNC_REQUEST {\r
  UINTN                              Signature;\r
  LIST_ENTRY                         Link;\r
  UHCI_ASYNC_REQUEST                 *Recycle;\r
\r
  //\r
  // Endpoint attributes\r
  //\r
  UINT8                              DevAddr;\r
  UINT8                              EndPoint;\r
  BOOLEAN                            IsLow;\r
  UINTN                              Interval;\r
\r
  //\r
  // Data and UHC structures\r
  //\r
  UHCI_QH_SW                         *QhSw;\r
  UHCI_TD_SW                         *FirstTd;\r
  UINT8                              *Data;   // Allocated host memory, not mapped memory\r
  UINTN                              DataLen;\r
  VOID                               *Mapping;\r
\r
  //\r
  // User callback and its context\r
  //\r
  EFI_ASYNC_USB_TRANSFER_CALLBACK    Callback;\r
  VOID                               *Context;\r
};\r
\r
#define UHCI_ASYNC_INT_FROM_LINK(a) \\r
          CR (a, UHCI_ASYNC_REQUEST, Link, UHCI_ASYNC_INT_SIGNATURE)\r
\r
/**\r
  Create Frame List Structure.\r
\r
  @param  Uhc                    The UHCI device.\r
\r
  @return EFI_OUT_OF_RESOURCES   Can't allocate memory resources.\r
  @return EFI_UNSUPPORTED        Map memory fail.\r
  @return EFI_SUCCESS            Success.\r
\r
**/\r
EFI_STATUS\r
UhciInitFrameList (\r
  IN USB_HC_DEV  *Uhc\r
  );\r
\r
/**\r
  Destory FrameList buffer.\r
\r
  @param  Uhc                    The UHCI device.\r
\r
  @return None.\r
\r
**/\r
VOID\r
UhciDestoryFrameList (\r
  IN USB_HC_DEV  *Uhc\r
  );\r
\r
/**\r
  Convert the poll rate to the maxium 2^n that is smaller\r
  than Interval.\r
\r
  @param  Interval               The poll rate to convert.\r
\r
  @return The converted poll rate.\r
\r
**/\r
UINTN\r
UhciConvertPollRate (\r
  IN  UINTN  Interval\r
  );\r
\r
/**\r
  Link a queue head (for asynchronous interrupt transfer) to\r
  the frame list.\r
\r
  @param  Uhc                    The UHCI device.\r
  @param  Qh                     The queue head to link into.\r
\r
**/\r
VOID\r
UhciLinkQhToFrameList (\r
  USB_HC_DEV  *Uhc,\r
  UHCI_QH_SW  *Qh\r
  );\r
\r
/**\r
  Unlink QH from the frame list is easier: find all\r
  the precedence node, and pointer there next to QhSw's\r
  next.\r
\r
  @param  Uhc                    The UHCI device.\r
  @param  Qh                     The queue head to unlink.\r
\r
**/\r
VOID\r
UhciUnlinkQhFromFrameList (\r
  USB_HC_DEV  *Uhc,\r
  UHCI_QH_SW  *Qh\r
  );\r
\r
/**\r
  Check the result of the transfer.\r
\r
  @param  Uhc                    The UHCI device.\r
  @param  Qh                     The queue head of the transfer.\r
  @param  Td                     The first TDs of the transfer.\r
  @param  TimeOut                TimeOut value in milliseconds.\r
  @param  IsLow                  Is Low Speed Device.\r
  @param  QhResult               The variable to return result.\r
\r
  @retval EFI_SUCCESS            The transfer finished with success.\r
  @retval EFI_DEVICE_ERROR       Transfer failed.\r
\r
**/\r
EFI_STATUS\r
UhciExecuteTransfer (\r
  IN  USB_HC_DEV      *Uhc,\r
  IN  UHCI_QH_SW      *Qh,\r
  IN  UHCI_TD_SW      *Td,\r
  IN  UINTN           TimeOut,\r
  IN  BOOLEAN         IsLow,\r
  OUT UHCI_QH_RESULT  *QhResult\r
  );\r
\r
/**\r
  Create Async Request node, and Link to List.\r
\r
  @param  Uhc                    The UHCI device.\r
  @param  Qh                     The queue head of the transfer.\r
  @param  FirstTd                First TD of the transfer.\r
  @param  DevAddr                Device Address.\r
  @param  EndPoint               EndPoint Address.\r
  @param  DataLen                Data length.\r
  @param  Interval               Polling Interval when inserted to frame list.\r
  @param  Data                   Data buffer, unmapped.\r
  @param  Callback               Callback after interrupt transfeer.\r
  @param  Context                Callback Context passed as function parameter.\r
  @param  IsLow                  Is Low Speed.\r
\r
  @retval EFI_SUCCESS            An asynchronous transfer is created.\r
  @retval EFI_INVALID_PARAMETER  Paremeter is error.\r
  @retval EFI_OUT_OF_RESOURCES   Failed because of resource shortage.\r
\r
**/\r
EFI_STATUS\r
UhciCreateAsyncReq (\r
  IN USB_HC_DEV                       *Uhc,\r
  IN UHCI_QH_SW                       *Qh,\r
  IN UHCI_TD_SW                       *FirstTd,\r
  IN UINT8                            DevAddr,\r
  IN UINT8                            EndPoint,\r
  IN UINTN                            DataLen,\r
  IN UINTN                            Interval,\r
  IN UINT8                            *Data,\r
  IN EFI_ASYNC_USB_TRANSFER_CALLBACK  Callback,\r
  IN VOID                             *Context,\r
  IN BOOLEAN                          IsLow\r
  );\r
\r
/**\r
  Delete Async Interrupt QH and TDs.\r
\r
  @param  Uhc                    The UHCI device.\r
  @param  DevAddr                Device Address.\r
  @param  EndPoint               EndPoint Address.\r
  @param  Toggle                 The next data toggle to use.\r
\r
  @retval EFI_SUCCESS            The request is deleted.\r
  @retval EFI_INVALID_PARAMETER  Paremeter is error.\r
  @retval EFI_NOT_FOUND          The asynchronous isn't found.\r
\r
**/\r
EFI_STATUS\r
UhciRemoveAsyncReq (\r
  IN  USB_HC_DEV  *Uhc,\r
  IN  UINT8       DevAddr,\r
  IN  UINT8       EndPoint,\r
  OUT UINT8       *Toggle\r
  );\r
\r
/**\r
  Release all the asynchronous transfers on the lsit.\r
\r
  @param  Uhc                    The UHCI device.\r
\r
  @return None.\r
\r
**/\r
VOID\r
UhciFreeAllAsyncReq (\r
  IN USB_HC_DEV  *Uhc\r
  );\r
\r
/**\r
  Interrupt transfer periodic check handler.\r
\r
  @param  Event                  The event of the time.\r
  @param  Context                Context of the event, pointer to USB_HC_DEV.\r
\r
  @return None.\r
\r
**/\r
VOID\r
EFIAPI\r
UhciMonitorAsyncReqList (\r
  IN EFI_EVENT  Event,\r
  IN VOID       *Context\r
  );\r
\r
#endif\r