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MdeModulePkg/Usb: Boost the r/w performance by reducing stall time on polling cmd execution status

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Signed-off-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Elvin Li <elvin.li@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14442 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Feng Tian
2013-06-24 03:03:55 +00:00
committed by erictian
parent 22feb630eb
commit ca24313165
13 changed files with 104 additions and 38 deletions
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10
MdeModulePkg/Bus/Usb/UsbBusPei/UsbIoPeim.c
View File

@@ -1,7 +1,7 @@
/** @file
The module is used to implement Usb Io PPI interfaces.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved. <BR>
Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved. <BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -24,7 +24,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
@param This The pointer of PEI_USB_IO_PPI.
@param Request USB device request to send.
@param Direction Specifies the data direction for the data stage.
@param Timeout Indicates the maximum timeout, in millisecond.
@param Timeout Indicates the maximum timeout, in millisecond. If Timeout
is 0, then the caller must wait for the function to be
completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@param Data Data buffer to be transmitted or received from USB device.
@param DataLength The size (in bytes) of the data buffer.
@@ -96,7 +98,9 @@ PeiUsbControlTransfer (
from or receive into.
@param DataLength The lenght of the data buffer.
@param Timeout Indicates the maximum time, in millisecond, which the
transfer is allowed to complete.
transfer is allowed to complete. If Timeout is 0, then
the caller must wait for the function to be completed
until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.

10
MdeModulePkg/Bus/Usb/UsbBusPei/UsbPeim.h
View File

@@ -1,7 +1,7 @@
/** @file
Usb Peim definition.
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved. <BR>
Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved. <BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions
@@ -71,7 +71,9 @@ typedef struct {
@param This The pointer of PEI_USB_IO_PPI.
@param Request USB device request to send.
@param Direction Specifies the data direction for the data stage.
@param Timeout Indicates the maximum timeout, in millisecond.
@param Timeout Indicates the maximum timeout, in millisecond. If Timeout
is 0, then the caller must wait for the function to be
completed until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@param Data Data buffer to be transmitted or received from USB device.
@param DataLength The size (in bytes) of the data buffer.
@@ -104,7 +106,9 @@ PeiUsbControlTransfer (
from or receive into.
@param DataLength The lenght of the data buffer.
@param Timeout Indicates the maximum time, in millisecond, which the
transfer is allowed to complete.
transfer is allowed to complete. If Timeout is 0, then
the caller must wait for the function to be completed
until EFI_SUCCESS or EFI_DEVICE_ERROR is returned.
@retval EFI_SUCCESS The transfer was completed successfully.
@retval EFI_OUT_OF_RESOURCES The transfer failed due to lack of resource.