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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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3
MdeModulePkg/Bus/Pci/UhciPei/UhcPeim.h
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@@ -1,7 +1,7 @@
/** @file
Private Header file for Usb Host Controller PEIM
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
@@ -94,6 +94,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#define OUTPUT_PACKET_ID 0xE1
#define ERROR_PACKET_ID 0x55
#define STALL_1_MICRO_SECOND 1
#define STALL_1_MILLI_SECOND 1000