ArmPkg: Correct small typos

[mirror_edk2.git] / ArmPkg / Library / SemiHostingSerialPortLib / SerialPortLib.c

diff --git a/ArmPkg/Library/SemiHostingSerialPortLib/SerialPortLib.c b/ArmPkg/Library/SemiHostingSerialPortLib/SerialPortLib.c
index df43f31413a2697dc5bba080ad1ada2f2b15714b..b6a07dd46608f49a15224df7532fd16ad92faded 100644 (file)
--- a/ArmPkg/Library/SemiHostingSerialPortLib/SerialPortLib.c
+++ b/ArmPkg/Library/SemiHostingSerialPortLib/SerialPortLib.c
@@ -1,15 +1,10 @@
 /** @file\r
   Serial I/O Port library functions with no library constructor/destructor\r
 \r
-  Copyright (c) 2008-2009, Apple Inc. All rights reserved.\r
-  \r
-  All rights reserved. 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
-  http://opensource.org/licenses/bsd-license.php\r
+  Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
+  Copyright (c) 2021, Arm Limited. All rights reserved.<BR>\r
 \r
-  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+  SPDX-License-Identifier: BSD-2-Clause-Patent\r
 \r
 **/\r
 \r
@@ -42,11 +37,11 @@ SerialPortInitialize (
 /**\r
   Write data to serial device.\r
 \r
-  @param  Buffer           Point of data buffer which need to be writed.\r
+  @param  Buffer           Point of data buffer which need to be written.\r
   @param  NumberOfBytes    Number of output bytes which are cached in Buffer.\r
 \r
   @retval 0                Write data failed.\r
-  @retval !0               Actual number of bytes writed to serial device.\r
+  @retval !0               Actual number of bytes written to serial device.\r
 \r
 **/\r
 \r
@@ -61,14 +56,17 @@ SerialPortWrite (
 )\r
 {\r
   UINT8 PrintBuffer[PRINT_BUFFER_SIZE];\r
-  UINTN SourceIndex      = 0;\r
-  UINTN DestinationIndex = 0;\r
+  UINTN SourceIndex;\r
+  UINTN DestinationIndex;\r
   UINT8 CurrentCharacter;\r
 \r
+  SourceIndex      = 0;\r
+  DestinationIndex = 0;\r
+\r
   while (SourceIndex < NumberOfBytes)\r
   {\r
       CurrentCharacter = Buffer[SourceIndex++];\r
-      \r
+\r
       switch (CurrentCharacter)\r
       {\r
       case '\r':\r
@@ -91,25 +89,25 @@ SerialPortWrite (
           DestinationIndex = 0;\r
       }\r
   }\r
-  \r
+\r
   if (DestinationIndex > 0)\r
   {\r
       PrintBuffer[DestinationIndex] = '\0';\r
       SemihostWriteString ((CHAR8 *) PrintBuffer);\r
   }\r
 \r
-  return 0;\r
+  return NumberOfBytes;\r
 }\r
 \r
 \r
 /**\r
   Read data from serial device and save the datas in buffer.\r
 \r
-  @param  Buffer           Point of data buffer which need to be writed.\r
+  @param  Buffer           Point of data buffer which need to be written.\r
   @param  NumberOfBytes    Number of output bytes which are cached in Buffer.\r
 \r
   @retval 0                Read data failed.\r
-  @retval !0               Aactual number of bytes read from serial device.\r
+  @retval !0               Actual number of bytes read from serial device.\r
 \r
 **/\r
 UINTN\r
@@ -126,10 +124,10 @@ SerialPortRead (
 \r
 \r
 /**\r
-  Check to see if any data is avaiable to be read from the debug device.\r
+  Check to see if any data is available to be read from the debug device.\r
 \r
-  @retval TRUE       At least one byte of data is avaiable to be read\r
-  @retval FALS     No data is avaiable to be read\r
+  @retval TRUE       At least one byte of data is available to be read\r
+  @retval FALSE      No data is available to be read\r
 \r
 **/\r
 BOOLEAN\r