MdeModulePkg/Bus/Pci/UhciDxe/Uhci.h

   1 /** @file
   2
   3   The definition for UHCI driver model and HC protocol routines.
   4
   5 Copyright (c) 2004 - 2009, Intel Corporation
   6 All rights reserved. This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #ifndef _EFI_UHCI_H_
  17 #define _EFI_UHCI_H_
  18
  19
  20 #include <Uefi.h>
  21
  22 #include <Protocol/Usb2HostController.h>
  23 #include <Protocol/UsbHostController.h>
  24 #include <Protocol/PciIo.h>
  25
  26 #include <Guid/EventGroup.h>
  27
  28 #include <Library/DebugLib.h>
  29 #include <Library/BaseMemoryLib.h>
  30 #include <Library/UefiDriverEntryPoint.h>
  31 #include <Library/UefiBootServicesTableLib.h>
  32 #include <Library/UefiLib.h>
  33 #include <Library/BaseLib.h>
  34 #include <Library/MemoryAllocationLib.h>
  35 #include <Library/PcdLib.h>
  36
  37 #include <IndustryStandard/Pci22.h>
  38
  39 typedef struct _USB_HC_DEV  USB_HC_DEV;
  40
  41 #include "UsbHcMem.h"
  42 #include "UhciQueue.h"
  43 #include "UhciReg.h"
  44 #include "UhciSched.h"
  45 #include "UhciDebug.h"
  46 #include "ComponentName.h"
  47
  48 typedef enum {
  49   UHC_1_MICROSECOND             = 1,
  50   UHC_1_MILLISECOND             = 1000 * UHC_1_MICROSECOND,
  51   UHC_1_SECOND                  = 1000 * UHC_1_MILLISECOND,
  52
  53   //
  54   // UHCI register operation timeout, set by experience
  55   //
  56   UHC_GENERIC_TIMEOUT           = UHC_1_SECOND,
  57
  58   //
  59   // Wait for force global resume(FGR) complete, refers to
  60   // specification[UHCI11-2.1.1]
  61   //
  62   UHC_FORCE_GLOBAL_RESUME_STALL = 20 * UHC_1_MILLISECOND,
  63
  64   //
  65   // Wait for roothub port reset and recovery, reset stall
  66   // is set by experience, and recovery stall refers to
  67   // specification[UHCI11-2.1.1]
  68   //
  69   UHC_ROOT_PORT_RESET_STALL     = 50 * UHC_1_MILLISECOND,
  70   UHC_ROOT_PORT_RECOVERY_STALL  = 10 * UHC_1_MILLISECOND,
  71
  72   //
  73   // Sync and Async transfer polling interval, set by experience,
  74   // and the unit of Async is 100us.
  75   //
  76   UHC_SYNC_POLL_INTERVAL        = 50 * UHC_1_MICROSECOND,
  77   UHC_ASYNC_POLL_INTERVAL       = 50 * 10000UL
  78 }UHC_TIMEOUT_EXPERIENCE_VALUE;
  79
  80
  81 //
  82 // UHC raises TPL to TPL_NOTIFY to serialize all its operations
  83 // to protect shared data structures.
  84 //
  85 #define  UHCI_TPL                     TPL_NOTIFY
  86
  87 #define  USB_HC_DEV_SIGNATURE         SIGNATURE_32 ('u', 'h', 'c', 'i')
  88
  89 #pragma pack(1)
  90 typedef struct {
  91   UINT8               PI;
  92   UINT8               SubClassCode;
  93   UINT8               BaseCode;
  94 } USB_CLASSC;
  95 #pragma pack()
  96
  97 #define UHC_FROM_USB2_HC_PROTO(This)  CR(This, USB_HC_DEV, Usb2Hc, USB_HC_DEV_SIGNATURE)
  98
  99 //
 100 // USB_HC_DEV support the UHCI hardware controller. It schedules
 101 // the asynchronous interrupt transfer with the same method as
 102 // EHCI: a reversed tree structure. For synchronous interrupt,
 103 // control and bulk transfer, it uses three static queue head to
 104 // schedule them. SyncIntQh is for interrupt transfer. LsCtrlQh is
 105 // for LOW speed control transfer, and FsCtrlBulkQh is for FULL
 106 // speed control or bulk transfer. This is because FULL speed contrl
 107 // or bulk transfer can reclaim the unused bandwidth. Some USB
 108 // device requires this bandwidth reclamation capability.
 109 //
 110 struct _USB_HC_DEV {
 111   UINT32                    Signature;
 112   EFI_USB2_HC_PROTOCOL      Usb2Hc;
 113   EFI_PCI_IO_PROTOCOL       *PciIo;
 114   UINT64                    OriginalPciAttributes;
 115
 116   //
 117   // Schedule data structures
 118   //
 119   UINT32                    *FrameBase;
 120   UHCI_QH_SW                *SyncIntQh;
 121   UHCI_QH_SW                *CtrlQh;
 122   UHCI_QH_SW                *BulkQh;
 123
 124   //
 125   // Structures to maintain asynchronus interrupt transfers.
 126   // When asynchronous interrutp transfer is unlinked from
 127   // the frame list, the hardware may still hold a pointer
 128   // to it. To synchronize with hardware, its resoureces are
 129   // released in two steps using Recycle and RecycleWait.
 130   // Check the asynchronous interrupt management routines.
 131   //
 132   LIST_ENTRY                AsyncIntList;
 133   EFI_EVENT                 AsyncIntMonitor;
 134   UHCI_ASYNC_REQUEST        *Recycle;
 135   UHCI_ASYNC_REQUEST        *RecycleWait;
 136
 137
 138   UINTN                     RootPorts;
 139   USBHC_MEM_POOL            *MemPool;
 140   EFI_UNICODE_STRING_TABLE  *CtrlNameTable;
 141   VOID                      *FrameMapping;
 142
 143   //
 144   // ExitBootServicesEvent is used to stop the EHC DMA operation
 145   // after exit boot service.
 146   //
 147   EFI_EVENT                 ExitBootServiceEvent;
 148 };
 149
 150 extern EFI_DRIVER_BINDING_PROTOCOL   gUhciDriverBinding;
 151 extern EFI_COMPONENT_NAME_PROTOCOL   gUhciComponentName;
 152 extern EFI_COMPONENT_NAME2_PROTOCOL  gUhciComponentName2;
 153
 154 /**
 155   Test to see if this driver supports ControllerHandle. Any
 156   ControllerHandle that has UsbHcProtocol installed will be supported.
 157
 158   @param  This                 Protocol instance pointer.
 159   @param  Controller           Handle of device to test.
 160   @param  RemainingDevicePath  Not used.
 161
 162   @return EFI_SUCCESS          This driver supports this device.
 163   @return EFI_UNSUPPORTED      This driver does not support this device.
 164
 165 **/
 166 EFI_STATUS
 167 EFIAPI
 168 UhciDriverBindingSupported (
 169   IN EFI_DRIVER_BINDING_PROTOCOL     *This,
 170   IN EFI_HANDLE                      Controller,
 171   IN EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
 172   );
 173
 174 /**
 175   Starting the Usb UHCI Driver.
 176
 177   @param  This                 Protocol instance pointer.
 178   @param  Controller           Handle of device to test.
 179   @param  RemainingDevicePath  Not used.
 180
 181   @retval EFI_SUCCESS          This driver supports this device.
 182   @retval EFI_UNSUPPORTED      This driver does not support this device.
 183   @retval EFI_DEVICE_ERROR     This driver cannot be started due to device Error.
 184                                EFI_OUT_OF_RESOURCES- Failed due to resource shortage.
 185
 186 **/
 187 EFI_STATUS
 188 EFIAPI
 189 UhciDriverBindingStart (
 190   IN EFI_DRIVER_BINDING_PROTOCOL     *This,
 191   IN EFI_HANDLE                      Controller,
 192   IN EFI_DEVICE_PATH_PROTOCOL        *RemainingDevicePath
 193   );
 194
 195 /**
 196   Stop this driver on ControllerHandle. Support stoping any child handles
 197   created by this driver.
 198
 199   @param  This                 Protocol instance pointer.
 200   @param  Controller           Handle of device to stop driver on.
 201   @param  NumberOfChildren     Number of Children in the ChildHandleBuffer.
 202   @param  ChildHandleBuffer    List of handles for the children we need to stop.
 203
 204   @return EFI_SUCCESS
 205   @return others
 206
 207 **/
 208 EFI_STATUS
 209 EFIAPI
 210 UhciDriverBindingStop (
 211   IN EFI_DRIVER_BINDING_PROTOCOL     *This,
 212   IN EFI_HANDLE                      Controller,
 213   IN UINTN                           NumberOfChildren,
 214   IN EFI_HANDLE                      *ChildHandleBuffer
 215   );
 216
 217 #endif