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MdeModulePkg XhciDxe: Extract new XhciInsertAsyncIntTransfer function

Browse Source 
V3:
Match function parameter name and description between
XhciSched.c and XhciSched.h.

V2:
Add the missing "FreePool (Data);".
Remove the unnecessary indentation change.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1274

Extract new XhciInsertAsyncIntTransfer function from
XhcAsyncInterruptTransfer.

It is code preparation for following patch,
no essential functional change.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
This commit is contained in:
Star Zeng 2018-10-22 16:29:03 +08:00
parent a6eb94eedb
commit 6681582dcc
3 changed files with 94 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
MdeModulePkg/Bus/Pci/XhciDxe/Xhci.c
View File

@ -1346,7 +1346,6 @@ XhcAsyncInterruptTransfer (
EFI_STATUS Status;
UINT8 SlotId;
UINT8 Index;
UINT8 *Data;
EFI_TPL OldTpl;
//
@ -1413,36 +1412,21 @@ XhcAsyncInterruptTransfer (
goto ON_EXIT;
}
Data = AllocateZeroPool (DataLength);
if (Data == NULL) {
DEBUG ((EFI_D_ERROR, "XhcAsyncInterruptTransfer: failed to allocate buffer\n"));
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
Urb = XhcCreateUrb (
Urb = XhciInsertAsyncIntTransfer (
Xhc,
DeviceAddress,
EndPointAddress,
DeviceSpeed,
MaximumPacketLength,
XHC_INT_TRANSFER_ASYNC,
NULL,
Data,
DataLength,
CallBackFunction,
Context
);
if (Urb == NULL) {
DEBUG ((EFI_D_ERROR, "XhcAsyncInterruptTransfer: failed to create URB\n"));
FreePool (Data);
Status = EFI_OUT_OF_RESOURCES;
goto ON_EXIT;
}
InsertHeadList (&Xhc->AsyncIntTransfers, &Urb->UrbList);
//
// Ring the doorbell
//

65
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
View File

@ -1410,6 +1410,71 @@ XhciDelAllAsyncIntTransfers (
}
}
/**
Insert a single asynchronous interrupt transfer for
the device and endpoint.
@param Xhc The XHCI Instance
@param BusAddr The logical device address assigned by UsbBus driver
@param EpAddr Endpoint addrress
@param DevSpeed The device speed
@param MaxPacket The max packet length of the endpoint
@param DataLen The length of data buffer
@param Callback The function to call when data is transferred
@param Context The context to the callback
@return Created URB or NULL
**/
URB *
XhciInsertAsyncIntTransfer (
IN USB_XHCI_INSTANCE *Xhc,
IN UINT8 BusAddr,
IN UINT8 EpAddr,
IN UINT8 DevSpeed,
IN UINTN MaxPacket,
IN UINTN DataLen,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,
IN VOID *Context
)
{
VOID *Data;
URB *Urb;
Data = AllocateZeroPool (DataLen);
if (Data == NULL) {
DEBUG ((DEBUG_ERROR, "%a: failed to allocate buffer\n", __FUNCTION__));
return NULL;
}
Urb = XhcCreateUrb (
Xhc,
BusAddr,
EpAddr,
DevSpeed,
MaxPacket,
XHC_INT_TRANSFER_ASYNC,
NULL,
Data,
DataLen,
Callback,
Context
);
if (Urb == NULL) {
DEBUG ((DEBUG_ERROR, "%a: failed to create URB\n", __FUNCTION__));
FreePool (Data);
return NULL;
}
//
// New asynchronous transfer must inserted to the head.
// Check the comments in XhcMoniteAsyncRequests
//
InsertHeadList (&Xhc->AsyncIntTransfers, &Urb->UrbList);
return Urb;
}
/**
Update the queue head for next round of asynchronous transfer

28
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.h
View File

@ -852,6 +852,34 @@ XhciDelAllAsyncIntTransfers (
IN USB_XHCI_INSTANCE *Xhc
);
/**
Insert a single asynchronous interrupt transfer for
the device and endpoint.
@param Xhc The XHCI Instance
@param BusAddr The logical device address assigned by UsbBus driver
@param EpAddr Endpoint addrress
@param DevSpeed The device speed
@param MaxPacket The max packet length of the endpoint
@param DataLen The length of data buffer
@param Callback The function to call when data is transferred
@param Context The context to the callback
@return Created URB or NULL
**/
URB *
XhciInsertAsyncIntTransfer (
IN USB_XHCI_INSTANCE *Xhc,
IN UINT8 BusAddr,
IN UINT8 EpAddr,
IN UINT8 DevSpeed,
IN UINTN MaxPacket,
IN UINTN DataLen,
IN EFI_ASYNC_USB_TRANSFER_CALLBACK Callback,
IN VOID *Context
);
/**
Set Bios Ownership