MdeModulePkg/Xhci: Add 10ms delay before sending SendAddr cmd to dev

[mirror_edk2.git] / MdeModulePkg / Bus / Pci / XhciPei / XhcPeim.h

diff --git a/MdeModulePkg/Bus/Pci/XhciPei/XhcPeim.h b/MdeModulePkg/Bus/Pci/XhciPei/XhcPeim.h
index ccf4dc26e551e8542a18b9feaf4e77b22197623f..99f03964947b8c5285edcb6651adee22aa727cc1 100644 (file)
--- a/MdeModulePkg/Bus/Pci/XhciPei/XhcPeim.h
+++ b/MdeModulePkg/Bus/Pci/XhciPei/XhcPeim.h
@@ -1,7 +1,7 @@
 /** @file\r
 Private Header file for Usb Host Controller PEIM\r
 \r
-Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>\r
+Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>\r
 \r
 This program and the accompanying materials\r
 are licensed and made available under the terms and conditions\r
@@ -52,6 +52,12 @@ typedef struct _USB_DEV_CONTEXT USB_DEV_CONTEXT;
 //\r
 #define XHC_RESET_TIMEOUT           (1000)\r
 \r
+//\r
+// TRSTRCY delay requirement in usb 2.0 spec chapter 7.1.7.5.\r
+// The unit is microsecond, setting it as 10ms.\r
+//\r
+#define XHC_RESET_RECOVERY_DELAY     (10 * 1000)\r
+\r
 //\r
 // Wait for root port state stable.\r
 //\r