IntelFrameworkModulePkg: Add DxeCapsuleLib

[mirror_edk2.git] / MdePkg / Library / BaseDebugLibSerialPort / DebugLib.c

diff --git a/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c b/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c
index 4e603a737899c5ad43b8ada202c9c82fc312db34..e1674fc25d5786b2203177394f4e6f704a3da445 100644 (file)
--- a/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c
+++ b/MdePkg/Library/BaseDebugLibSerialPort/DebugLib.c
@@ -1,12 +1,17 @@
 /** @file\r
   Base Debug library instance base on Serial Port library.\r
   It uses PrintLib to send debug messages to serial port device.\r
-\r
-  Copyright (c) 2006 - 2008, Intel Corporation<BR>\r
-  All rights reserved. This program and the accompanying materials                          \r
+  \r
+  NOTE: If the Serial Port library enables hardware flow control, then a call \r
+  to DebugPrint() or DebugAssert() may hang if writes to the serial port are \r
+  being blocked.  This may occur if a key(s) are pressed in a terminal emulator\r
+  used to monitor the DEBUG() and ASSERT() messages. \r
+\r
+  Copyright (c) 2006 - 2011, 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
-  http://opensource.org/licenses/bsd-license.php                                            \r
+  http://opensource.org/licenses/bsd-license.php.                                            \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
@@ -20,18 +25,34 @@
 #include <Library/PcdLib.h>\r
 #include <Library/BaseMemoryLib.h>\r
 #include <Library/SerialPortLib.h>\r
+#include <Library/DebugPrintErrorLevelLib.h>\r
 \r
 //\r
 // Define the maximum debug and assert message length that this library supports \r
 //\r
 #define MAX_DEBUG_MESSAGE_LENGTH  0x100\r
 \r
+/**\r
+  The constructor function initialize the Serial Port Library\r
+\r
+  @retval EFI_SUCCESS   The constructor always returns RETURN_SUCCESS.\r
+\r
+**/\r
+RETURN_STATUS\r
+EFIAPI\r
+BaseDebugLibSerialPortConstructor (\r
+  VOID\r
+  )\r
+{\r
+  return SerialPortInitialize ();\r
+}\r
+\r
 /**\r
   Prints a debug message to the debug output device if the specified error level is enabled.\r
 \r
-  If any bit in ErrorLevel is also set in PcdDebugPrintErrorLevel, then print \r
-  the message specified by Format and the associated variable argument list to \r
-  the debug output device.\r
+  If any bit in ErrorLevel is also set in DebugPrintErrorLevelLib function \r
+  GetDebugPrintErrorLevel (), then print the message specified by Format and the \r
+  associated variable argument list to the debug output device.\r
 \r
   If Format is NULL, then ASSERT().\r
 \r
@@ -60,7 +81,7 @@ DebugPrint (
   //\r
   // Check driver debug mask value and global mask\r
   //\r
-  if ((ErrorLevel & PcdGet32(PcdDebugPrintErrorLevel)) == 0) {\r
+  if ((ErrorLevel & GetDebugPrintErrorLevel ()) == 0) {\r
     return;\r
   }\r
 \r
@@ -74,7 +95,7 @@ DebugPrint (
   //\r
   // Send the print string to a Serial Port \r
   //\r
-  SerialPortWrite ((UINT8 *) Buffer, AsciiStrLen(Buffer));\r
+  SerialPortWrite ((UINT8 *)Buffer, AsciiStrLen (Buffer));\r
 }\r
 \r
 \r
@@ -94,9 +115,9 @@ DebugPrint (
   If FileName is NULL, then a <FileName> string of "(NULL) Filename" is printed.\r
   If Description is NULL, then a <Description> string of "(NULL) Description" is printed.\r
 \r
-  @param  FileName     Pointer to the name of the source file that generated the assert condition.\r
+  @param  FileName     The pointer to the name of the source file that generated the assert condition.\r
   @param  LineNumber   The line number in the source file that generated the assert condition\r
-  @param  Description  Pointer to the description of the assert condition.\r
+  @param  Description  The pointer to the description of the assert condition.\r
 \r
 **/\r
 VOID\r
@@ -117,7 +138,7 @@ DebugAssert (
   //\r
   // Send the print string to the Console Output device\r
   //\r
-  SerialPortWrite ((UINT8 *) Buffer, AsciiStrLen(Buffer));\r
+  SerialPortWrite ((UINT8 *)Buffer, AsciiStrLen (Buffer));\r
 \r
   //\r
   // Generate a Breakpoint, DeadLoop, or NOP based on PCD settings\r
@@ -139,10 +160,10 @@ DebugAssert (
   If Buffer is NULL, then ASSERT().\r
   If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). \r
 \r
-  @param   Buffer  Pointer to the target buffer to be filled with PcdDebugClearMemoryValue.\r
-  @param   Length  Number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue. \r
+  @param   Buffer  The pointer to the target buffer to be filled with PcdDebugClearMemoryValue.\r
+  @param   Length  The number of bytes in Buffer to fill with zeros PcdDebugClearMemoryValue. \r
 \r
-  @return  Buffer  Pointer to the target buffer filled with PcdDebugClearMemoryValue.\r
+  @return  Buffer  The pointer to the target buffer filled with PcdDebugClearMemoryValue.\r
 \r
 **/\r
 VOID *\r