Refine some formats/comments and remove some unused prototypes.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Star Zeng <star.zeng@intel.com>
---
 .../DebugCommunicationLibUsb3Common.c              | 16 ++++----
 .../DebugCommunicationLibUsb3Internal.h            | 47 +++-------------------
 2 files changed, 13 insertions(+), 50 deletions(-)

diff --git a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Common.c b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Common.c
index 3b0f81cf88fd..37f49ad822f5 100644
--- a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Common.c
+++ b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Common.c
@@ -85,15 +85,15 @@ XhcClearR32Bit(
   Write the data to the XHCI debug register.
 
   @param  Handle       Debug port handle.
-  @param  Offset       The offset of the runtime register.
+  @param  Offset       The offset of the debug register.
   @param  Data         The data to write.
 
 **/
 VOID
 XhcWriteDebugReg (
   IN USB3_DEBUG_PORT_HANDLE  *Handle,
-  IN UINT32                   Offset,
-  IN UINT32                   Data
+  IN UINT32                  Offset,
+  IN UINT32                  Data
   )
 {
   EFI_PHYSICAL_ADDRESS  DebugCapabilityBase;
@@ -116,7 +116,7 @@ XhcWriteDebugReg (
 UINT32
 XhcReadDebugReg (
   IN  USB3_DEBUG_PORT_HANDLE *Handle,
-  IN  UINT32                   Offset
+  IN  UINT32                 Offset
   )
 {
   UINT32                  Data;
@@ -129,16 +129,16 @@ XhcReadDebugReg (
 }
 
 /**
-  Set one bit of the runtime register while keeping other bits.
+  Set one bit of the debug register while keeping other bits.
 
   @param  Handle       Debug port handle.
-  @param  Offset       The offset of the runtime register.
+  @param  Offset       The offset of the debug register.
   @param  Bit          The bit mask of the register to set.
 
 **/
 VOID
 XhcSetDebugRegBit (
-  IN USB3_DEBUG_PORT_HANDLE *Handle,
+  IN USB3_DEBUG_PORT_HANDLE   *Handle,
   IN UINT32                   Offset,
   IN UINT32                   Bit
   )
@@ -216,7 +216,7 @@ UpdateXhcResource (
 
   @param  Handle             Debug port handle.
 
-  @retval RETURN_UNSUPPORTED The usb host controller does not supported usb debug port capability.
+  @retval RETURN_UNSUPPORTED The usb host controller does not support usb debug port capability.
   @retval RETURN_SUCCESS     Get bar and offset successfully.
 
 **/
diff --git a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Internal.h b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Internal.h
index 356485c5f697..9da49f964401 100644
--- a/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Internal.h
+++ b/SourceLevelDebugPkg/Library/DebugCommunicationLibUsb3/DebugCommunicationLibUsb3Internal.h
@@ -1,7 +1,7 @@
 /** @file
   Debug Port Library implementation based on usb3 debug port.
 
-  Copyright (c) 2014 - 2015, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
   This program and the accompanying materials
   are licensed and made available under the terms and conditions of the BSD License
   which accompanies this distribution.  The full text of the license may be found at
@@ -540,7 +540,7 @@ typedef struct _USB3_DEBUG_PORT_INSTANCE {
 UINT32
 XhcReadDebugReg (
   IN  USB3_DEBUG_PORT_HANDLE    *Handle,
-  IN  UINT32                      Offset
+  IN  UINT32                    Offset
   );
 
 /**
@@ -554,8 +554,8 @@ XhcReadDebugReg (
 VOID
 XhcSetDebugRegBit (
   IN USB3_DEBUG_PORT_HANDLE  *Handle,
-  IN UINT32                   Offset,
-  IN UINT32                   Bit
+  IN UINT32                  Offset,
+  IN UINT32                  Bit
   );
   
 /**
@@ -574,43 +574,6 @@ XhcWriteDebugReg (
   );
 
 /**
-  Discover the USB3 debug device.
-  
-  @param  Handle                Debug port handle.
-  
-  @retval RETURN_SUCCESS        The serial device was initialized.
-  @retval RETURN_DEVICE_ERROR   The serial device could not be initialized.
-
-**/
-RETURN_STATUS
-DiscoverUsb3DebugPort(
-  USB3_DEBUG_PORT_HANDLE  *Handle
-  );
-  
-/**
-  Initialize the Serial Device hardware.
-  
-  @param  Handle            Debug port handle.
-
-  @retval RETURN_SUCCESS    The serial device was initialized successfully.
-  @retval !RETURN_SUCCESS   Error.
-
-**/
-RETURN_STATUS
-InitializeUsb3DebugPort (
-  USB3_DEBUG_PORT_HANDLE  *Handle
-  );
-
-/**
-  Return XHCI MMIO base address.
-
-**/
-EFI_PHYSICAL_ADDRESS
-GetXhciBaseAddress (
-  VOID
-  );
-
-/**
   Verifies if the bit positions specified by a mask are set in a register.
 
   @param[in, out] Register    UNITN register
@@ -728,4 +691,4 @@ XhcDataTransfer (
   IN     UINTN                               Timeout
   );
 
-#endif //__SERIAL_PORT_LIB_USB__
+#endif //__USB3_DEBUG_PORT_LIB_INTERNAL__
-- 
2.7.0.windows.1

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