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|
/** @file
The OHCI register operation routines.
Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "Ohci.h"
/**
Map address of request structure buffer.
@param Ohc The OHCI device.
@param Request The user request buffer.
@param MappedAddr Mapped address of request.
@param Map Identificaion of this mapping to return.
@return EFI_SUCCESS Success.
@return EFI_DEVICE_ERROR Fail to map the user request.
**/
EFI_STATUS
OhciMapUserRequest (
IN USB_HC_DEV *Ohc,
IN OUT VOID *Request,
OUT UINT8 **MappedAddr,
OUT VOID **Map
)
{
EFI_STATUS Status;
UINTN Len;
EFI_PHYSICAL_ADDRESS PhyAddr;
#if 1
Len = sizeof (EFI_USB_DEVICE_REQUEST);
Status = Ohc->PciIo->Map (
Ohc->PciIo,
EfiPciIoOperationBusMasterWrite,
Request,
&Len,
&PhyAddr,
Map
);
if (!EFI_ERROR (Status)) {
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
}
#else
Len = sizeof (EFI_USB_DEVICE_REQUEST);
Status = Ohc->PciIo->Map (
Ohc->PciIo,
EfiPciIoOperationBusMasterRead,
Request,
&Len,
&PhyAddr,
Map
);
if (!EFI_ERROR (Status)) {
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
}
#endif
return Status;
}
/**
Map address of user data buffer.
@param Ohc The OHCI device.
@param Direction Direction of the data transfer.
@param Data The user data buffer.
@param Len Length of the user data.
@param PktId Packet identificaion.
@param MappedAddr Mapped address to return.
@param Map Identificaion of this mapping to return.
@return EFI_SUCCESS Success.
@return EFI_DEVICE_ERROR Fail to map the user data.
**/
EFI_STATUS
OhciMapUserData (
IN USB_HC_DEV *Ohc,
IN EFI_USB_DATA_DIRECTION Direction,
IN VOID *Data,
IN OUT UINTN *Len,
OUT UINT8 *PktId,
OUT UINT8 **MappedAddr,
OUT VOID **Map
)
{
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS PhyAddr;
Status = EFI_SUCCESS;
#if 1
switch (Direction) {
case EfiUsbDataIn:
//
// BusMasterWrite means cpu read
//
*PktId = INPUT_PACKET_ID;
Status = Ohc->PciIo->Map (
Ohc->PciIo,
EfiPciIoOperationBusMasterRead,
Data,
Len,
&PhyAddr,
Map
);
if (EFI_ERROR (Status)) {
goto EXIT;
}
DEBUG((EFI_D_INIT, "Read Mapped : %p\n", *Map));
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
break;
case EfiUsbDataOut:
*PktId = OUTPUT_PACKET_ID;
Status = Ohc->PciIo->Map (
Ohc->PciIo,
EfiPciIoOperationBusMasterWrite,
Data,
Len,
&PhyAddr,
Map
);
if (EFI_ERROR (Status)) {
goto EXIT;
}
DEBUG((EFI_D_INIT, "Write Mapped : %p\n", *Map));
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
break;
case EfiUsbNoData:
if ((Len != NULL) && (*Len != 0)) {
Status = EFI_INVALID_PARAMETER;
goto EXIT;
}
DEBUG((EFI_D_INIT, "No Mapped : %p\n", *Map));
*PktId = OUTPUT_PACKET_ID;
*MappedAddr = NULL;
*Map = NULL;
break;
default:
Status = EFI_INVALID_PARAMETER;
}
#else
switch (Direction) {
case EfiUsbDataIn:
//
// BusMasterWrite means cpu read
//
*PktId = INPUT_PACKET_ID;
Status = Ohc->PciIo->Map (
Ohc->PciIo,
EfiPciIoOperationBusMasterWrite,
Data,
Len,
&PhyAddr,
Map
);
if (EFI_ERROR (Status)) {
goto EXIT;
}
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
break;
case EfiUsbDataOut:
*PktId = OUTPUT_PACKET_ID;
Status = Ohc->PciIo->Map (
Ohc->PciIo,
EfiPciIoOperationBusMasterRead,
Data,
Len,
&PhyAddr,
Map
);
if (EFI_ERROR (Status)) {
goto EXIT;
}
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
break;
case EfiUsbNoData:
if ((Len != NULL) && (*Len != 0)) {
Status = EFI_INVALID_PARAMETER;
goto EXIT;
}
*PktId = OUTPUT_PACKET_ID;
*MappedAddr = NULL;
*Map = NULL;
break;
default:
Status = EFI_INVALID_PARAMETER;
}
#endif
EXIT:
return Status;
}
/**
Link the TD To QH.
@param Ohc The OHCI device.
@param Qh The queue head for the TD to link to.
@param Td The TD to link.
**/
VOID
OhciLinkTdToQh (
IN USB_HC_DEV *Ohc,
IN OHCI_ED_HW *Ed,
IN UINT8 Class
)
{
#if 1
UINT32 cmd;
if(Class == HC_CLASS_CONTROL) //Controll
{
/*
cmd = OhciReadReg(Ohc, HC_CONTROL_OFFSET);
cmd &= ~(1<<5);
OhciWriteReg(Ohc, HC_CONTROL_OFFSET, cmd); */
cmd = OhciReadReg(Ohc, HC_COM_STATUS_OFFSET);
cmd |= (1<<1);
OhciWriteReg(Ohc, HC_COM_STATUS_OFFSET, cmd);
OhciWriteReg(Ohc, HC_CTRL_HEADED_OFFSET, Ed);
cmd = OhciReadReg(Ohc, HC_CONTROL_OFFSET);
cmd |= (1<<4);
OhciWriteReg(Ohc, HC_CONTROL_OFFSET, cmd);
}
else//Interrupt
{/*
cmd = OhciReadReg(Ohc, HC_CONTROL_OFFSET);
cmd &= ~(1<<4);
OhciWriteReg(Ohc, HC_CONTROL_OFFSET, cmd);
*/
cmd = OhciReadReg(Ohc, HC_COM_STATUS_OFFSET);
cmd |= (1<<2);
OhciWriteReg(Ohc, HC_COM_STATUS_OFFSET, cmd);
OhciWriteReg(Ohc, HC_BULK_HEADED_OFFSET, Ed);
cmd = OhciReadReg(Ohc, HC_CONTROL_OFFSET);
cmd |= (1<<5);
OhciWriteReg(Ohc, HC_CONTROL_OFFSET, cmd);
}
#else
EFI_PHYSICAL_ADDRESS PhyAddr;
PhyAddr = UsbHcGetPciAddressForHostMem (Ohc->MemPool, Td, sizeof (OHCI_TD_HW));
ASSERT ((Qh != NULL) && (Td != NULL));
Qh->QhHw.VerticalLink = QH_VLINK (PhyAddr, FALSE);
Qh->TDs = (VOID *) Td;
#endif
}
/**
Unlink TD from the QH.
@param Qh The queue head to unlink from.
@param Td The TD to unlink.
**/
VOID
OhciUnlinkTdFromQh (
IN OHCI_QH_SW *Qh,
IN OHCI_TD_HW *Td
)
{
#if 1
#else
ASSERT ((Qh != NULL) && (Td != NULL));
Qh->QhHw.VerticalLink = QH_VLINK (NULL, TRUE);
Qh->TDs = NULL;
#endif
}
/**
Append a new TD To the previous TD.
@param Ohc The OHCI device.
@param PrevTd Previous OHCI_TD_HW to be linked to.
@param ThisTd TD to link.
**/
VOID
OhciAppendTd (
IN USB_HC_DEV *Ohc,
IN OHCI_TD_HW *PrevTd,
IN OHCI_TD_HW *ThisTd
)
{
EFI_PHYSICAL_ADDRESS PhyAddr;
//PhyAddr = UsbHcGetPciAddressForHostMem (Ohc->MemPool, ThisTd, sizeof (OHCI_TD_HW));
ASSERT ((PrevTd != NULL) && (ThisTd != NULL));
#if 1
PrevTd->next_td = (VOID *) ThisTd;
#else
PrevTd->TdHw.NextLink = TD_LINK (PhyAddr, TRUE, FALSE);
PrevTd->NextTd = (VOID *) ThisTd;
#endif
}
/**
Delete a list of TDs.
@param Ohc The OHCI device.
@param FirstTd TD link list head.
@return None.
**/
VOID
OhciDestoryTds (
IN USB_HC_DEV *Ohc,
IN OHCI_TD_SW *FirstTd
)
{
OHCI_TD_SW *NextTd;
OHCI_TD_SW *ThisTd;
DEBUG((EFI_D_INIT, "+++OhciDestoryTds()\n"));
NextTd = FirstTd;
while (NextTd != NULL) {
ThisTd = NextTd;
NextTd = ThisTd->NextTd;
if(ThisTd->TdHw)
{
DEBUG((EFI_D_INIT, "Destroy TDHW : %p\n", ThisTd->TdHw));
UsbHcFreeMem (Ohc->MemPool, ThisTd->TdHw, sizeof (OHCI_TD_HW));
}
DEBUG((EFI_D_INIT, "Destroy THSW : %p\n", ThisTd));
UsbHcFreeMem (Ohc->MemPool, ThisTd, sizeof (OHCI_TD_SW));
}
DEBUG((EFI_D_INIT, "---OhciDestoryTds()\n"));
}
/**
Create an initialize a new queue head.
@param Ohc The OHCI device.
@param Interval The polling interval for the queue.
@return The newly created queue header.
**/
OHCI_QH_SW *
OhciCreateQh (
IN USB_HC_DEV *Ohc,
IN UINTN Interval
)
{
OHCI_QH_SW *Qh;
#if 1
#else
Qh = UsbHcAllocateMem (Ohc->MemPool, sizeof (OHCI_QH_SW));
if (Qh == NULL) {
return NULL;
}
Qh->QhHw.HorizonLink = QH_HLINK (NULL, TRUE);
Qh->QhHw.VerticalLink = QH_VLINK (NULL, TRUE);
Qh->Interval = OhciConvertPollRate(Interval);
Qh->TDs = NULL;
Qh->NextQh = NULL;
#endif
return Qh;
}
/**
Create and intialize a TD.
@param Ohc The OHCI device.
@return The newly allocated and initialized TD.
**/
OHCI_TD_HW *
OhciCreateTd (
IN USB_HC_DEV *Ohc
)
{
OHCI_TD_HW *Td;
Td = UsbHcAllocateMem (Ohc->MemPool, sizeof (OHCI_TD_HW));
if (Td == NULL) {
return NULL;
}
Td->current_buf_ptr = NULL;
Td->next_td = NULL;
Td->buffer_end = NULL;
return Td;
}
/**
Create and initialize a TD for Setup Stage of a control transfer.
@param Ohc The OHCI device.
@param DevAddr Device address.
@param Request A pointer to cpu memory address of Device request.
@param RequestPhy A pointer to pci memory address of Device request.
@param IsLow Full speed or low speed.
@return The created setup Td Pointer.
**/
OHCI_TD_HW *
OhciCreateSetupTd (
IN USB_HC_DEV *Ohc,
IN UINT8 DevAddr,
IN UINT8 *Request,
IN UINT8 *RequestPhy,
IN BOOLEAN IsLow
)
{
OHCI_TD_HW *Td;
Td = OhciCreateTd (Ohc);
if (Td == NULL) {
return NULL;
}
#if 1
OhcDumpRequest(RequestPhy);
DEBUG((EFI_D_INIT, "LowSpeed : %d\n", IsLow));
Td->gtd_info.data = 0;
Td->gtd_info.b.buffer_rounding = 0;
Td->gtd_info.b.pid = SETUP_PACKET_ID;
Td->gtd_info.b.data_toggle = 2; // DATA0
Td->current_buf_ptr = (UINT32)RequestPhy;
Td->next_td = NULL;
Td->buffer_end = (UINT32)RequestPhy + sizeof (EFI_USB_DEVICE_REQUEST)-1;
#else
Td->TdHw.NextLink = TD_LINK (NULL, TRUE, TRUE);
Td->TdHw.ShortPacket = FALSE;
Td->TdHw.IsIsoch = FALSE;
Td->TdHw.IntOnCpl = FALSE;
Td->TdHw.ErrorCount = 0x03;
Td->TdHw.Status |= USBTD_ACTIVE;
Td->TdHw.DataToggle = 0;
Td->TdHw.EndPoint = 0;
Td->TdHw.LowSpeed = IsLow ? 1 : 0;
Td->TdHw.DeviceAddr = DevAddr & 0x7F;
Td->TdHw.MaxPacketLen = (UINT32) (sizeof (EFI_USB_DEVICE_REQUEST) - 1);
Td->TdHw.PidCode = SETUP_PACKET_ID;
Td->TdHw.DataBuffer = (UINT32) (UINTN) RequestPhy;
Td->Data = Request;
Td->DataLen = (UINT16) sizeof (EFI_USB_DEVICE_REQUEST);
#endif
return Td;
}
/**
Create a TD for data.
@param Ohc The OHCI device.
@param DevAddr Device address.
@param Endpoint Endpoint number.
@param DataPtr A pointer to cpu memory address of Data buffer.
@param DataPhyPtr A pointer to pci memory address of Data buffer.
@param Len Data length.
@param PktId Packet ID.
@param Toggle Data toggle value.
@param IsLow Full speed or low speed.
@return Data Td pointer if success, otherwise NULL.
**/
OHCI_TD_HW *
OhciCreateDataTd (
IN USB_HC_DEV *Ohc,
IN UINT8 DevAddr,
IN UINT8 Endpoint,
IN UINT8 *DataPtr,
IN UINT8 *DataPhyPtr,
IN UINTN Len,
IN UINT8 PktId,
IN UINT8 Toggle,
IN BOOLEAN IsLow
)
{
OHCI_TD_HW *Td;
//DEBUG((EFI_D_INIT, "+++OhciCreateDataTd(Len : %d)\n", Len));
//
// Code as length - 1, and the max valid length is 0x500
//
ASSERT (Len <= 0x500);
Td = OhciCreateTd (Ohc);
if (Td == NULL) {
return NULL;
}
#if 1
Td->gtd_info.data = 0;
Td->gtd_info.b.buffer_rounding = 1; // may be smaller than the defined buffer
Td->gtd_info.b.pid = PktId;
Td->gtd_info.b.data_toggle = Toggle; // DATA1
Td->current_buf_ptr = (UINT32) (UINTN) DataPhyPtr;
Td->next_td = NULL;
Td->buffer_end = (UINT32) (UINTN) DataPhyPtr + Len-1;
#else
Td->TdHw.NextLink = TD_LINK (NULL, TRUE, TRUE);
Td->TdHw.ShortPacket = FALSE;
Td->TdHw.IsIsoch = FALSE;
Td->TdHw.IntOnCpl = FALSE;
Td->TdHw.ErrorCount = 0x03;
Td->TdHw.Status = USBTD_ACTIVE;
Td->TdHw.LowSpeed = IsLow ? 1 : 0;
Td->TdHw.DataToggle = Toggle & 0x01;
Td->TdHw.EndPoint = Endpoint & 0x0F;
Td->TdHw.DeviceAddr = DevAddr & 0x7F;
Td->TdHw.MaxPacketLen = (UINT32) (Len - 1);
Td->TdHw.PidCode = (UINT8) PktId;
Td->TdHw.DataBuffer = (UINT32) (UINTN) DataPhyPtr;
Td->Data = DataPtr;
Td->DataLen = (UINT16) Len;
#endif
//DEBUG((EFI_D_INIT, "---OhciCreateDataTd()\n"));
return Td;
}
/**
Create TD for the Status Stage of control transfer.
@param Ohc The OHCI device.
@param DevAddr Device address.
@param PktId Packet ID.
@param IsLow Full speed or low speed.
@return Status Td Pointer.
**/
OHCI_TD_HW *
OhciCreateStatusTd (
IN USB_HC_DEV *Ohc,
IN UINT8 DevAddr,
IN UINT8 PktId,
IN BOOLEAN IsLow
)
{
OHCI_TD_HW *Td;
Td = OhciCreateTd (Ohc);
if (Td == NULL) {
return NULL;
}
#if 1
Td->gtd_info.data = 0;
Td->gtd_info.b.buffer_rounding = 1; // may be smaller than the defined buffer
Td->gtd_info.b.pid = PktId;
Td->gtd_info.b.data_toggle = 3; // DATA1
Td->current_buf_ptr = 0;
Td->next_td = 0;
Td->buffer_end = 0;
#else
Td->TdHw.NextLink = TD_LINK (NULL, TRUE, TRUE);
Td->TdHw.ShortPacket = FALSE;
Td->TdHw.IsIsoch = FALSE;
Td->TdHw.IntOnCpl = FALSE;
Td->TdHw.ErrorCount = 0x03;
Td->TdHw.Status |= USBTD_ACTIVE;
Td->TdHw.MaxPacketLen = 0x7FF; //0x7FF: there is no data (refer to OHCI spec)
Td->TdHw.DataToggle = 1;
Td->TdHw.EndPoint = 0;
Td->TdHw.LowSpeed = IsLow ? 1 : 0;
Td->TdHw.DeviceAddr = DevAddr & 0x7F;
Td->TdHw.PidCode = (UINT8) PktId;
Td->TdHw.DataBuffer = (UINT32) (UINTN) NULL;
Td->Data = NULL;
Td->DataLen = 0;
#endif
return Td;
}
OHCI_ED_HW *
OhciCreateEd (
IN USB_HC_DEV *Ohc,
IN UINT8 DeviceAddr,
IN UINT32 *QH,
IN UINT8 MaxPacket,
IN BOOLEAN IsLow
)
{
OHCI_ED_HW *Ed;
Ed = UsbHcAllocateMem (Ohc->MemPool, sizeof (OHCI_ED_HW));
if (Ed == NULL) {
return NULL;
}
Ed->ed_info.data = 0;
Ed->ed_info.b.func_addr = DeviceAddr;
Ed->ed_info.b.ep_num = 0;
Ed->ed_info.b.direction = 0;
Ed->ed_info.b.speed = IsLow?1:0; // speed
Ed->ed_info.b.format = 0; // gTD
Ed->ed_info.b.mps = MaxPacket;
Ed->tail_td_ptr = 0;
Ed->head_td_ptr = QH;
Ed->next_ed = 0;
return Ed;
}
/**
Create Tds list for Control Transfer.
@param Ohc The OHCI device.
@param DeviceAddr The device address.
@param DataPktId Packet Identification of Data Tds.
@param Request A pointer to cpu memory address of request structure buffer to transfer.
@param RequestPhy A pointer to pci memory address of request structure buffer to transfer.
@param Data A pointer to cpu memory address of user data buffer to transfer.
@param DataPhy A pointer to pci memory address of user data buffer to transfer.
@param DataLen Length of user data to transfer.
@param MaxPacket Maximum packet size for control transfer.
@param IsLow Full speed or low speed.
@return The Td list head for the control transfer.
**/
OHCI_ED_HW *
OhciCreateCtrlTds (
IN USB_HC_DEV *Ohc,
IN UINT8 DeviceAddr,
IN UINT8 DataPktId,
IN UINT8 *Request,
IN UINT8 *RequestPhy,
IN UINT8 *Data,
IN UINT8 *DataPhy,
IN UINTN DataLen,
IN UINT8 MaxPacket,
IN BOOLEAN IsLow
)
{
OHCI_ED_HW *Ed;
OHCI_TD_HW *SetupTd;
OHCI_TD_HW *FirstDataTd;
OHCI_TD_HW *DataTd;
OHCI_TD_HW *PrevDataTd;
OHCI_TD_HW *StatusTd;
UINT8 DataToggle;
UINT8 StatusPktId;
UINTN ThisTdLen;
DataTd = NULL;
SetupTd = NULL;
FirstDataTd = NULL;
PrevDataTd = NULL;
StatusTd = NULL;
//
// Create setup packets for the transfer
//
SetupTd = OhciCreateSetupTd (Ohc, DeviceAddr, Request, RequestPhy, IsLow);
if (SetupTd == NULL) {
return NULL;
}
//
// Create data packets for the transfer
//
DataToggle = 1;
DEBUG((EFI_D_INIT, "Max Len %d, Dat Len ; %d\n", MaxPacket, DataLen));
while (DataLen > 0) {
//
// PktSize is the data load size in each Td.
//
ThisTdLen = (DataLen > MaxPacket ? MaxPacket : DataLen);
DataTd = OhciCreateDataTd (
Ohc,
DeviceAddr,
0,
Data, //cpu memory address
DataPhy, //Pci memory address
ThisTdLen,
DataPktId,
(DataToggle + 2),
IsLow
);
if (DataTd == NULL) {
goto FREE_TD;
}
if (FirstDataTd == NULL) {
FirstDataTd = DataTd;
FirstDataTd->next_td = NULL;
} else {
OhciAppendTd (Ohc, PrevDataTd, DataTd);
}
DataToggle ^= 1;
PrevDataTd = DataTd;
Data += ThisTdLen;
DataPhy += ThisTdLen;
DataLen -= ThisTdLen;
}
//
// Status packet is on the opposite direction to data packets
//
if (OUTPUT_PACKET_ID == DataPktId) {
StatusPktId = INPUT_PACKET_ID;
} else {
StatusPktId = OUTPUT_PACKET_ID;
}
StatusTd = OhciCreateStatusTd (Ohc, DeviceAddr, StatusPktId, IsLow);
if (StatusTd == NULL) {
DEBUG((EFI_D_ERROR, "FAIL! OhciCreateStatusTd\n"));
goto FREE_TD;
}
//
// Link setup Td -> data Tds -> status Td together
//
if (FirstDataTd != NULL) {
OhciAppendTd (Ohc, SetupTd, FirstDataTd);
OhciAppendTd (Ohc, PrevDataTd, StatusTd);
} else {
OhciAppendTd (Ohc, SetupTd, StatusTd);
}
//iky
Ed = Ohc->EdHw[0];
Ed->ed_info.data = 0;
Ed->ed_info.b.func_addr = DeviceAddr;
Ed->ed_info.b.ep_num = 0;
Ed->ed_info.b.direction = 0;
Ed->ed_info.b.speed = IsLow?1:0; // speed
Ed->ed_info.b.format = 0; // gTD
Ed->ed_info.b.mps = MaxPacket;
Ed->tail_td_ptr = 0;
Ed->head_td_ptr = SetupTd;
Ed->next_ed = 0;
Ohc->LastTd = StatusTd;
return Ed;
FREE_TD:
if (SetupTd != NULL) {
OhciDestoryTds (Ohc, SetupTd);
}
if (FirstDataTd != NULL) {
OhciDestoryTds (Ohc, FirstDataTd);
}
return NULL;
}
/**
Create Tds list for Bulk/Interrupt Transfer.
@param Ohc USB_HC_DEV.
@param DevAddr Address of Device.
@param EndPoint Endpoint Number.
@param PktId Packet Identification of Data Tds.
@param Data A pointer to cpu memory address of user data buffer to transfer.
@param DataPhy A pointer to pci memory address of user data buffer to transfer.
@param DataLen Length of user data to transfer.
@param DataToggle Data Toggle Pointer.
@param MaxPacket Maximum packet size for Bulk/Interrupt transfer.
@param IsLow Is Low Speed Device.
@return The Tds list head for the bulk transfer.
**/
OHCI_TD_HW *
OhciCreateBulkOrIntTds (
IN USB_HC_DEV *Ohc,
IN UINT8 DevAddr,
IN UINT8 EndPoint,
IN UINT8 PktId,
IN UINT8 *Data,
IN UINT8 *DataPhy,
IN UINTN DataLen,
IN OUT UINT8 *DataToggle,
IN UINT8 MaxPacket,
IN BOOLEAN IsLow
)
{
OHCI_ED_HW *Ed;
OHCI_TD_HW *DataTd;
OHCI_TD_HW *FirstDataTd;
OHCI_TD_HW *PrevDataTd;
UINTN ThisTdLen;
UINT8 EP;
#if 1
EP = EndPoint >> 7;
DEBUG((EFI_D_INIT, "+++OhciCreateBulkOrIntTds(EP%d : %p)\n", EP, Ohc->EdHw[EP]));
DataTd = NULL;
FirstDataTd = NULL;
PrevDataTd = NULL;
//
// Create data packets for the transfer
//
while (DataLen > 0) {
//
// PktSize is the data load size that each Td.
//
ThisTdLen = DataLen;
if (DataLen > MaxPacket) {
ThisTdLen = MaxPacket;
}
DataTd = OhciCreateDataTd (
Ohc,
DevAddr,
EndPoint,
Data,
DataPhy,
ThisTdLen,
PktId,
(*DataToggle + 2),
IsLow
);
if (DataTd == NULL) {
DEBUG((EFI_D_ERROR, "FAIL! OhciCreateDataTd\n"));
goto FREE_TD;
}
/*
if (PktId == INPUT_PACKET_ID) {
DataTd->gtd_info.b.buffer_rounding = 1;
}
*/
if (FirstDataTd == NULL) {
FirstDataTd = DataTd;
FirstDataTd->next_td = NULL;
} else {
OhciAppendTd (Ohc, PrevDataTd, DataTd);
}
*DataToggle ^= 1;
PrevDataTd = DataTd;
Data += ThisTdLen;
DataPhy += ThisTdLen;
DataLen -= ThisTdLen;
}
Ed = Ohc->EdHw[EP];
Ed->ed_info.data = 0;
Ed->ed_info.b.func_addr = DevAddr;
Ed->ed_info.b.ep_num = EP;
Ed->ed_info.b.direction = 0; //IN DIRECTION
Ed->ed_info.b.speed = IsLow?1:0; // speed
Ed->ed_info.b.format = 0; // gTD
Ed->ed_info.b.mps = MaxPacket;
Ed->tail_td_ptr = 0;
Ed->head_td_ptr = FirstDataTd;
Ed->next_ed = 0;
Ohc->LastTd = PrevDataTd;
DEBUG((EFI_D_INIT, "---OhciCreateBulkOrIntTds()\n"));
return Ed;
FREE_TD:
if (FirstDataTd != NULL) {
OhciDestoryTds (Ohc, FirstDataTd);
}
return NULL;
#else
DataTd = NULL;
FirstDataTd = NULL;
PrevDataTd = NULL;
//
// Create data packets for the transfer
//
while (DataLen > 0) {
//
// PktSize is the data load size that each Td.
//
ThisTdLen = DataLen;
if (DataLen > MaxPacket) {
ThisTdLen = MaxPacket;
}
DataTd = OhciCreateDataTd (
Ohc,
DevAddr,
EndPoint,
Data,
DataPhy,
ThisTdLen,
PktId,
*DataToggle,
IsLow
);
if (DataTd == NULL) {
goto FREE_TD;
}
if (PktId == INPUT_PACKET_ID) {
DataTd->TdHw.ShortPacket = TRUE;
}
if (FirstDataTd == NULL) {
FirstDataTd = DataTd;
FirstDataTd->NextTd = NULL;
} else {
OhciAppendTd (Ohc, PrevDataTd, DataTd);
}
*DataToggle ^= 1;
PrevDataTd = DataTd;
Data += ThisTdLen;
DataPhy += ThisTdLen;
DataLen -= ThisTdLen;
}
return FirstDataTd;
FREE_TD:
if (FirstDataTd != NULL) {
OhciDestoryTds (Ohc, FirstDataTd);
}
#endif
}
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