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

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / EhciDxe / EhciSched.c

diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c b/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
index 4dc8e1abf10c4c25910967f9ad46061b129eaeae..366ab84dcf63b868dde8638fd33e635165a56192 100644 (file)
--- a/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
+++ b/MdeModulePkg/Bus/Pci/EhciDxe/EhciSched.c
@@ -2,7 +2,7 @@
 \r
   EHCI transfer scheduling routines.\r
 \r
-Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2007 - 2013, Intel Corporation. All rights reserved.<BR>\r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions of the BSD License\r
 which accompanies this distribution.  The full text of the license may be found at\r
@@ -694,7 +694,7 @@ EhcExecTransfer (
   BOOLEAN                 InfiniteLoop;\r
 \r
   Status       = EFI_SUCCESS;\r
-  Loop         = (TimeOut * EHC_1_MILLISECOND / EHC_SYNC_POLL_INTERVAL) + 1;\r
+  Loop         = TimeOut * EHC_1_MILLISECOND;\r
   Finished     = FALSE;\r
   InfiniteLoop = FALSE;\r
 \r
@@ -714,7 +714,7 @@ EhcExecTransfer (
       break;\r
     }\r
 \r
-    gBS->Stall (EHC_SYNC_POLL_INTERVAL);\r
+    gBS->Stall (EHC_1_MICROSECOND);\r
   }\r
 \r
   if (!Finished) {\r