DuetPkg/DxeIpl/Debug.c

   1 /** @file
   2
   3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   4 This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13   Debug.c
  14
  15 Abstract:
  16
  17 Revision History:
  18
  19 **/
  20
  21 #include "DxeIpl.h"
  22 #include "SerialStatusCode.h"
  23 #include "Debug.h"
  24
  25 UINT8 *mCursor;
  26 UINT8 mHeaderIndex = 10;
  27
  28
  29 VOID
  30 PrintHeader (
  31   CHAR8 Char
  32   )
  33 {
  34   *(UINT8 *)(UINTN)(0x000b8000 + mHeaderIndex) = Char;
  35   mHeaderIndex += 2;
  36 }
  37
  38 VOID
  39 ClearScreen (
  40   VOID
  41   )
  42 {
  43   UINT32 Index;
  44
  45   mCursor = (UINT8 *)(UINTN)(0x000b8000 + 160);
  46   for (Index = 0; Index < 80 * 49; Index++) {
  47     *mCursor = ' ';
  48     mCursor += 2;
  49   }
  50   mCursor = (UINT8 *)(UINTN)(0x000b8000 + 160);
  51 }
  52
  53 VOID
  54 PrintValue (
  55   UINT32 Value
  56   )
  57 {
  58   UINT32 Index;
  59   CHAR8  Char;
  60   CHAR8  String[9];
  61
  62   for (Index = 0; Index < 8; Index++) {
  63     Char = (UINT8)(((Value >> ((7 - Index) * 4)) & 0x0f) + '0');
  64     if (Char > '9') {
  65       Char = (UINT8) (Char - '0' - 10 + 'A');
  66     }
  67     String[Index] = Char;
  68   }
  69
  70   String[sizeof (String) - 1] = '\0';
  71
  72   PrintString (String);
  73 }
  74
  75 VOID
  76 PrintValue64 (
  77   UINT64 Value
  78   )
  79 {
  80   PrintValue ((UINT32) RShiftU64 (Value, 32));
  81   PrintValue ((UINT32) Value);
  82 }
  83
  84
  85
  86 VOID
  87 PrintString (
  88   CHAR8 *String
  89   )
  90 {
  91   UINT32 Index;
  92
  93   for (Index = 0; String[Index] != 0; Index++) {
  94     if (String[Index] == '\n') {
  95       mCursor = (UINT8 *)(UINTN)(0xb8000 + (((((UINTN)mCursor - 0xb8000) + 160) / 160) * 160));
  96     } else {
  97       *mCursor = String[Index];
  98       mCursor += 2;
  99     }
 100   }
 101
 102   //
 103   // All information also output to serial port.
 104   //
 105   DebugSerialPrint ((CHAR8*)String);
 106 }
 107