audk/MdeModulePkg/Bus/Pci/UhciDxe/UhciQueue.c

689 lines
16 KiB
C

/** @file
The UHCI register operation routines.
Copyright (c) 2007 - 2008, Intel Corporation
All rights reserved. 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 "Uhci.h"
/**
Map address of request structure buffer.
@param Uhc The UHCI 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
UhciMapUserRequest (
IN USB_HC_DEV *Uhc,
IN OUT VOID *Request,
OUT UINT8 **MappedAddr,
OUT VOID **Map
)
{
EFI_STATUS Status;
UINTN Len;
EFI_PHYSICAL_ADDRESS PhyAddr;
Len = sizeof (EFI_USB_DEVICE_REQUEST);
Status = Uhc->PciIo->Map (
Uhc->PciIo,
EfiPciIoOperationBusMasterRead,
Request,
&Len,
&PhyAddr,
Map
);
if (!EFI_ERROR (Status)) {
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
}
return Status;
}
/**
Map address of user data buffer.
@param Uhc The UHCI 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
UhciMapUserData (
IN USB_HC_DEV *Uhc,
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;
switch (Direction) {
case EfiUsbDataIn:
//
// BusMasterWrite means cpu read
//
*PktId = INPUT_PACKET_ID;
Status = Uhc->PciIo->Map (
Uhc->PciIo,
EfiPciIoOperationBusMasterWrite,
Data,
Len,
&PhyAddr,
Map
);
if (EFI_ERROR (Status)) {
goto EXIT;
}
*MappedAddr = (UINT8 *) (UINTN) PhyAddr;
break;
case EfiUsbDataOut:
*PktId = OUTPUT_PACKET_ID;
Status = Uhc->PciIo->Map (
Uhc->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;
*Len = 0;
*MappedAddr = NULL;
*Map = NULL;
break;
default:
Status = EFI_INVALID_PARAMETER;
}
EXIT:
return Status;
}
/**
Link the TD To QH.
@param Qh The queue head for the TD to link to.
@param Td The TD to link.
@return None.
**/
VOID
UhciLinkTdToQh (
IN UHCI_QH_SW *Qh,
IN UHCI_TD_SW *Td
)
{
ASSERT ((Qh != NULL) && (Td != NULL));
Qh->QhHw.VerticalLink = QH_VLINK (Td, FALSE);
Qh->TDs = (VOID *) Td;
}
/**
Unlink TD from the QH.
@param Qh The queue head to unlink from.
@param Td The TD to unlink.
@return None.
**/
VOID
UhciUnlinkTdFromQh (
IN UHCI_QH_SW *Qh,
IN UHCI_TD_SW *Td
)
{
ASSERT ((Qh != NULL) && (Td != NULL));
Qh->QhHw.VerticalLink = QH_VLINK (NULL, TRUE);
Qh->TDs = NULL;
}
/**
Append a new TD To the previous TD.
@param PrevTd Previous UHCI_TD_SW to be linked to.
@param ThisTd TD to link.
@return None.
**/
VOID
UhciAppendTd (
IN UHCI_TD_SW *PrevTd,
IN UHCI_TD_SW *ThisTd
)
{
ASSERT ((PrevTd != NULL) && (ThisTd != NULL));
PrevTd->TdHw.NextLink = TD_LINK (ThisTd, TRUE, FALSE);
PrevTd->NextTd = (VOID *) ThisTd;
}
/**
Delete a list of TDs.
@param Uhc The UHCI device.
@param FirstTd TD link list head.
@return None.
**/
VOID
UhciDestoryTds (
IN USB_HC_DEV *Uhc,
IN UHCI_TD_SW *FirstTd
)
{
UHCI_TD_SW *NextTd;
UHCI_TD_SW *ThisTd;
NextTd = FirstTd;
while (NextTd != NULL) {
ThisTd = NextTd;
NextTd = ThisTd->NextTd;
UsbHcFreeMem (Uhc->MemPool, ThisTd, sizeof (UHCI_TD_SW));
}
}
/**
Create an initialize a new queue head.
@param Uhc The UHCI device.
@param Interval The polling interval for the queue.
@return The newly created queue header.
**/
UHCI_QH_SW *
UhciCreateQh (
IN USB_HC_DEV *Uhc,
IN UINTN Interval
)
{
UHCI_QH_SW *Qh;
Qh = UsbHcAllocateMem (Uhc->MemPool, sizeof (UHCI_QH_SW));
if (Qh == NULL) {
return NULL;
}
Qh->QhHw.HorizonLink = QH_HLINK (NULL, TRUE);
Qh->QhHw.VerticalLink = QH_VLINK (NULL, TRUE);
Qh->Interval = UhciConvertPollRate(Interval);
Qh->TDs = NULL;
Qh->NextQh = NULL;
return Qh;
}
/**
Create and intialize a TD.
@param Uhc The UHCI device.
@return The newly allocated and initialized TD.
**/
UHCI_TD_SW *
UhciCreateTd (
IN USB_HC_DEV *Uhc
)
{
UHCI_TD_SW *Td;
Td = UsbHcAllocateMem (Uhc->MemPool, sizeof (UHCI_TD_SW));
if (Td == NULL) {
return NULL;
}
Td->TdHw.NextLink = TD_LINK (NULL, FALSE, TRUE);
Td->NextTd = NULL;
Td->Data = NULL;
Td->DataLen = 0;
return Td;
}
/**
Create and initialize a TD for Setup Stage of a control transfer.
@param Uhc The UHCI device.
@param DevAddr Device address.
@param Request Device request.
@param IsLow Full speed or low speed.
@return The created setup Td Pointer.
**/
UHCI_TD_SW *
UhciCreateSetupTd (
IN USB_HC_DEV *Uhc,
IN UINT8 DevAddr,
IN UINT8 *Request,
IN BOOLEAN IsLow
)
{
UHCI_TD_SW *Td;
Td = UhciCreateTd (Uhc);
if (Td == NULL) {
return NULL;
}
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) Request;
Td->Data = Request;
Td->DataLen = sizeof (EFI_USB_DEVICE_REQUEST);
return Td;
}
/**
Create a TD for data.
@param Uhc The UHCI device.
@param DevAddr Device address.
@param Endpoint Endpoint number.
@param DataPtr 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.
**/
UHCI_TD_SW *
UhciCreateDataTd (
IN USB_HC_DEV *Uhc,
IN UINT8 DevAddr,
IN UINT8 Endpoint,
IN UINT8 *DataPtr,
IN UINTN Len,
IN UINT8 PktId,
IN UINT8 Toggle,
IN BOOLEAN IsLow
)
{
UHCI_TD_SW *Td;
//
// Code as length - 1, and the max valid length is 0x500
//
ASSERT (Len <= 0x500);
Td = UhciCreateTd (Uhc);
if (Td == NULL) {
return NULL;
}
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) DataPtr;
Td->Data = DataPtr;
Td->DataLen = (UINT16) Len;
return Td;
}
/**
Create TD for the Status Stage of control transfer.
@param Uhc The UHCI device.
@param DevAddr Device address.
@param PktId Packet ID.
@param IsLow Full speed or low speed.
@return Status Td Pointer.
**/
UHCI_TD_SW *
UhciCreateStatusTd (
IN USB_HC_DEV *Uhc,
IN UINT8 DevAddr,
IN UINT8 PktId,
IN BOOLEAN IsLow
)
{
UHCI_TD_SW *Td;
Td = UhciCreateTd (Uhc);
if (Td == NULL) {
return NULL;
}
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 UHCI 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;
return Td;
}
/**
Create Tds list for Control Transfer.
@param Uhc The UHCI device.
@param DeviceAddr The device address.
@param DataPktId Packet Identification of Data Tds.
@param Request A pointer to request structure buffer to transfer.
@param Data A pointer to 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.
**/
UHCI_TD_SW *
UhciCreateCtrlTds (
IN USB_HC_DEV *Uhc,
IN UINT8 DeviceAddr,
IN UINT8 DataPktId,
IN UINT8 *Request,
IN UINT8 *Data,
IN UINTN DataLen,
IN UINT8 MaxPacket,
IN BOOLEAN IsLow
)
{
UHCI_TD_SW *SetupTd;
UHCI_TD_SW *FirstDataTd;
UHCI_TD_SW *DataTd;
UHCI_TD_SW *PrevDataTd;
UHCI_TD_SW *StatusTd;
UINT8 DataToggle;
UINT8 StatusPktId;
UINTN ThisTdLen;
DataTd = NULL;
SetupTd = NULL;
FirstDataTd = NULL;
PrevDataTd = NULL;
StatusTd = NULL;
//
// Create setup packets for the transfer
//
SetupTd = UhciCreateSetupTd (Uhc, DeviceAddr, Request, IsLow);
if (SetupTd == NULL) {
return NULL;
}
//
// Create data packets for the transfer
//
DataToggle = 1;
while (DataLen > 0) {
//
// PktSize is the data load size in each Td.
//
ThisTdLen = (DataLen > MaxPacket ? MaxPacket : DataLen);
DataTd = UhciCreateDataTd (
Uhc,
DeviceAddr,
0,
Data,
ThisTdLen,
DataPktId,
DataToggle,
IsLow
);
if (DataTd == NULL) {
goto FREE_TD;
}
if (FirstDataTd == NULL) {
FirstDataTd = DataTd;
FirstDataTd->NextTd = NULL;
} else {
UhciAppendTd (PrevDataTd, DataTd);
}
DataToggle ^= 1;
PrevDataTd = DataTd;
Data += 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 = UhciCreateStatusTd (Uhc, DeviceAddr, StatusPktId, IsLow);
if (StatusTd == NULL) {
goto FREE_TD;
}
//
// Link setup Td -> data Tds -> status Td together
//
if (FirstDataTd != NULL) {
UhciAppendTd (SetupTd, FirstDataTd);
UhciAppendTd (PrevDataTd, StatusTd);
} else {
UhciAppendTd (SetupTd, StatusTd);
}
return SetupTd;
FREE_TD:
if (SetupTd != NULL) {
UhciDestoryTds (Uhc, SetupTd);
}
if (FirstDataTd != NULL) {
UhciDestoryTds (Uhc, FirstDataTd);
}
return NULL;
}
/**
Create Tds list for Bulk/Interrupt Transfer.
@param Uhc USB_HC_DEV.
@param DevAddr Address of Device.
@param EndPoint Endpoint Number.
@param PktId Packet Identification of Data Tds.
@param Data A pointer to 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.
**/
UHCI_TD_SW *
UhciCreateBulkOrIntTds (
IN USB_HC_DEV *Uhc,
IN UINT8 DevAddr,
IN UINT8 EndPoint,
IN UINT8 PktId,
IN UINT8 *Data,
IN UINTN DataLen,
IN OUT UINT8 *DataToggle,
IN UINT8 MaxPacket,
IN BOOLEAN IsLow
)
{
UHCI_TD_SW *DataTd;
UHCI_TD_SW *FirstDataTd;
UHCI_TD_SW *PrevDataTd;
UINTN ThisTdLen;
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 = UhciCreateDataTd (
Uhc,
DevAddr,
EndPoint,
Data,
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 {
UhciAppendTd (PrevDataTd, DataTd);
}
*DataToggle ^= 1;
PrevDataTd = DataTd;
Data += ThisTdLen;
DataLen -= ThisTdLen;
}
return FirstDataTd;
FREE_TD:
if (FirstDataTd != NULL) {
UhciDestoryTds (Uhc, FirstDataTd);
}
return NULL;
}