mirror of https://github.com/acidanthera/audk.git
153 lines
4.5 KiB
C
153 lines
4.5 KiB
C
/** @file
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Copyright (c) 2004 - 2007, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Uhci.h
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Abstract:
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The definition for UHCI driver model and HC protocol routines.
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Revision History
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**/
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#ifndef _UHCI_H
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#define _UHCI_H
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#include <PiDxe.h>
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#include <Protocol/Usb2HostController.h>
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#include <Protocol/UsbHostController.h>
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#include <Protocol/PciIo.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <IndustryStandard/Pci22.h>
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typedef struct _USB_HC_DEV USB_HC_DEV;
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#include "UsbHcMem.h"
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#include "UhciQueue.h"
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#include "UhciReg.h"
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#include "UhciSched.h"
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#include "UhciDebug.h"
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enum {
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UHC_1_MICROSECOND = 1,
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UHC_1_MILLISECOND = 1000 * UHC_1_MICROSECOND,
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UHC_1_SECOND = 1000 * UHC_1_MILLISECOND,
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//
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// UHCI register operation timeout, set by experience
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//
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UHC_GENERIC_TIMEOUT = UHC_1_SECOND,
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//
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// Wait for force global resume(FGR) complete, refers to
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// specification[UHCI11-2.1.1]
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//
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UHC_FORCE_GLOBAL_RESUME_STALL = 20 * UHC_1_MILLISECOND,
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//
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// Wait for roothub port reset and recovery, reset stall
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// is set by experience, and recovery stall refers to
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// specification[UHCI11-2.1.1]
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//
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UHC_ROOT_PORT_RESET_STALL = 50 * UHC_1_MILLISECOND,
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UHC_ROOT_PORT_RECOVERY_STALL = 10 * UHC_1_MILLISECOND,
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//
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// Sync and Async transfer polling interval, set by experience,
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// and the unit of Async is 100us.
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//
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UHC_SYNC_POLL_INTERVAL = 50 * UHC_1_MICROSECOND,
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UHC_ASYNC_POLL_INTERVAL = 50 * 10000UL,
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//
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// UHC raises TPL to TPL_NOTIFY to serialize all its operations
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// to protect shared data structures.
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//
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UHCI_TPL = TPL_NOTIFY,
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USB_HC_DEV_SIGNATURE = EFI_SIGNATURE_32 ('u', 'h', 'c', 'i')
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};
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#pragma pack(1)
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typedef struct {
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UINT8 PI;
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UINT8 SubClassCode;
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UINT8 BaseCode;
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} USB_CLASSC;
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#pragma pack()
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#define UHC_FROM_USB2_HC_PROTO(This) CR(This, USB_HC_DEV, Usb2Hc, USB_HC_DEV_SIGNATURE)
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//
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// USB_HC_DEV support the UHCI hardware controller. It schedules
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// the asynchronous interrupt transfer with the same method as
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// EHCI: a reversed tree structure. For synchronous interrupt,
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// control and bulk transfer, it uses three static queue head to
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// schedule them. SyncIntQh is for interrupt transfer. LsCtrlQh is
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// for LOW speed control transfer, and FsCtrlBulkQh is for FULL
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// speed control or bulk transfer. This is because FULL speed contrl
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// or bulk transfer can reclaim the unused bandwidth. Some USB
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// device requires this bandwidth reclamation capability.
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//
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struct _USB_HC_DEV {
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UINT32 Signature;
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EFI_USB2_HC_PROTOCOL Usb2Hc;
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EFI_PCI_IO_PROTOCOL *PciIo;
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UINT64 OriginalPciAttributes;
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//
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// Schedule data structures
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//
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UINT32 *FrameBase;
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UHCI_QH_SW *SyncIntQh;
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UHCI_QH_SW *CtrlQh;
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UHCI_QH_SW *BulkQh;
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//
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// Structures to maintain asynchronus interrupt transfers.
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// When asynchronous interrutp transfer is unlinked from
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// the frame list, the hardware may still hold a pointer
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// to it. To synchronize with hardware, its resoureces are
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// released in two steps using Recycle and RecycleWait.
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// Check the asynchronous interrupt management routines.
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//
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LIST_ENTRY AsyncIntList;
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EFI_EVENT AsyncIntMonitor;
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UHCI_ASYNC_REQUEST *Recycle;
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UHCI_ASYNC_REQUEST *RecycleWait;
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UINTN RootPorts;
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USBHC_MEM_POOL *MemPool;
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EFI_UNICODE_STRING_TABLE *CtrlNameTable;
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VOID *FrameMapping;
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};
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extern EFI_DRIVER_BINDING_PROTOCOL gUhciDriverBinding;
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extern EFI_COMPONENT_NAME_PROTOCOL gUhciComponentName;
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extern EFI_COMPONENT_NAME2_PROTOCOL gUhciComponentName2;
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#endif
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