diff options
Diffstat (limited to 'roms/edk2/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.h')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.h b/roms/edk2/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.h new file mode 100644 index 000000000..34fb9a3be --- /dev/null +++ b/roms/edk2/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.h @@ -0,0 +1,207 @@ +/** @file
+
+ This file contains the definination for host controller schedule routines.
+
+Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _EFI_EHCI_SCHED_H_
+#define _EFI_EHCI_SCHED_H_
+
+
+/**
+ Initialize the schedule data structure such as frame list.
+
+ @param Ehc The EHCI device to init schedule data for.
+
+ @retval EFI_OUT_OF_RESOURCES Failed to allocate resource to init schedule data.
+ @retval EFI_SUCCESS The schedule data is initialized.
+
+**/
+EFI_STATUS
+EhcInitSched (
+ IN USB2_HC_DEV *Ehc
+ );
+
+
+/**
+ Free the schedule data. It may be partially initialized.
+
+ @param Ehc The EHCI device.
+
+**/
+VOID
+EhcFreeSched (
+ IN USB2_HC_DEV *Ehc
+ );
+
+
+/**
+ Link the queue head to the asynchronous schedule list.
+ UEFI only supports one CTRL/BULK transfer at a time
+ due to its interfaces. This simplifies the AsynList
+ management: A reclamation header is always linked to
+ the AsyncListAddr, the only active QH is appended to it.
+
+ @param Ehc The EHCI device.
+ @param Qh The queue head to link.
+
+**/
+VOID
+EhcLinkQhToAsync (
+ IN USB2_HC_DEV *Ehc,
+ IN EHC_QH *Qh
+ );
+
+
+/**
+ Unlink a queue head from the asynchronous schedule list.
+ Need to synchronize with hardware.
+
+ @param Ehc The EHCI device.
+ @param Qh The queue head to unlink.
+
+**/
+VOID
+EhcUnlinkQhFromAsync (
+ IN USB2_HC_DEV *Ehc,
+ IN EHC_QH *Qh
+ );
+
+
+/**
+ Link a queue head for interrupt transfer to the periodic
+ schedule frame list. This code is very much the same as
+ that in UHCI.
+
+ @param Ehc The EHCI device.
+ @param Qh The queue head to link.
+
+**/
+VOID
+EhcLinkQhToPeriod (
+ IN USB2_HC_DEV *Ehc,
+ IN EHC_QH *Qh
+ );
+
+
+/**
+ Unlink an interrupt queue head from the periodic
+ schedule frame list.
+
+ @param Ehc The EHCI device.
+ @param Qh The queue head to unlink.
+
+**/
+VOID
+EhcUnlinkQhFromPeriod (
+ IN USB2_HC_DEV *Ehc,
+ IN EHC_QH *Qh
+ );
+
+
+
+/**
+ Execute the transfer by polling the URB. This is a synchronous operation.
+
+ @param Ehc The EHCI device.
+ @param Urb The URB to execute.
+ @param TimeOut The time to wait before abort, in millisecond.
+
+ @retval EFI_DEVICE_ERROR The transfer failed due to transfer error.
+ @retval EFI_TIMEOUT The transfer failed due to time out.
+ @retval EFI_SUCCESS The transfer finished OK.
+
+**/
+EFI_STATUS
+EhcExecTransfer (
+ IN USB2_HC_DEV *Ehc,
+ IN URB *Urb,
+ IN UINTN TimeOut
+ );
+
+
+/**
+ Delete a single asynchronous interrupt transfer for
+ the device and endpoint.
+
+ @param Ehc The EHCI device.
+ @param DevAddr The address of the target device.
+ @param EpNum The endpoint of the target.
+ @param DataToggle Return the next data toggle to use.
+
+ @retval EFI_SUCCESS An asynchronous transfer is removed.
+ @retval EFI_NOT_FOUND No transfer for the device is found.
+
+**/
+EFI_STATUS
+EhciDelAsyncIntTransfer (
+ IN USB2_HC_DEV *Ehc,
+ IN UINT8 DevAddr,
+ IN UINT8 EpNum,
+ OUT UINT8 *DataToggle
+ );
+
+
+/**
+ Remove all the asynchronous interrutp transfers.
+
+ @param Ehc The EHCI device.
+
+**/
+VOID
+EhciDelAllAsyncIntTransfers (
+ IN USB2_HC_DEV *Ehc
+ );
+
+/**
+ Insert a single asynchronous interrupt transfer for
+ the device and endpoint.
+
+ @param Ehc The EHCI device.
+ @param DevAddr The device address.
+ @param EpAddr Endpoint addrress & its direction.
+ @param DevSpeed The device speed.
+ @param Toggle Initial data toggle to use.
+ @param MaxPacket The max packet length of the endpoint.
+ @param Hub The transaction translator to use.
+ @param DataLen The length of data buffer.
+ @param Callback The function to call when data is transferred.
+ @param Context The context to the callback.
+ @param Interval The interval for interrupt transfer.
+
+ @return Created URB or NULL.
+
+**/
+URB *
+EhciInsertAsyncIntTransfer (
+ IN USB2_HC_DEV *Ehc,
+ IN UINT8 DevAddr,
+ IN UINT8 EpAddr,
+ IN UINT8 DevSpeed,
+ IN UINT8 Toggle,
+ IN UINTN MaxPacket,
+ IN EFI_USB2_HC_TRANSACTION_TRANSLATOR *Hub,
+ IN UINTN DataLen,
+ IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,
+ IN VOID *Context,
+ IN UINTN Interval
+ );
+
+/**
+ Interrupt transfer periodic check handler.
+
+ @param Event Interrupt event.
+ @param Context Pointer to USB2_HC_DEV.
+
+**/
+VOID
+EFIAPI
+EhcMonitorAsyncRequests (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ );
+
+#endif
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