DuetPkg/DxeIpl/Debug.c

   1 /** @file
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. 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
  24 UINT8 *mCursor;
  25 UINT8 mHeaderIndex = 10;
  26
  27
  28 VOID
  29 PrintHeader (
  30   CHAR8 Char
  31   )
  32 {
  33   *(UINT8 *)(UINTN)(0x000b8000 + mHeaderIndex) = Char;
  34   mHeaderIndex += 2;
  35 }
  36
  37 VOID
  38 ClearScreen (
  39   VOID
  40   )
  41 {
  42   UINT32 Index;
  43
  44   mCursor = (UINT8 *)(UINTN)(0x000b8000 + 160);
  45   for (Index = 0; Index < 80 * 49; Index++) {
  46     *mCursor = ' ';
  47     mCursor += 2;
  48   }
  49   mCursor = (UINT8 *)(UINTN)(0x000b8000 + 160);
  50 }
  51
  52 VOID
  53 PrintValue (
  54   UINT32 Value
  55   )
  56 {
  57   UINT32 Index;
  58   UINT8  Char;
  59
  60   for (Index = 0; Index < 8; Index++) {
  61     Char = (UINT8)(((Value >> ((7 - Index) * 4)) & 0x0f) + '0');
  62     if (Char > '9') {
  63       Char = (UINT8) (Char - '0' - 10 + 'A');
  64     }
  65     *mCursor = Char;
  66     mCursor += 2;
  67   }
  68 }
  69
  70 VOID
  71 PrintValue64 (
  72   UINT64 Value
  73   )
  74 {
  75   PrintValue ((UINT32) RShiftU64 (Value, 32));
  76   PrintValue ((UINT32) Value);
  77 }
  78
  79
  80
  81 VOID
  82 PrintString (
  83   UINT8 *String
  84   )
  85 {
  86   UINT32 Index;
  87
  88   for (Index = 0; String[Index] != 0; Index++) {
  89     if (String[Index] == '\n') {
  90       mCursor = (UINT8 *)(UINTN)(0xb8000 + (((((UINTN)mCursor - 0xb8000) + 160) / 160) * 160));
  91     } else {
  92       *mCursor = String[Index];
  93       mCursor += 2;
  94     }
  95   }
  96
  97   //
  98   // All information also output to serial port.
  99   //
 100   DebugSerialPrint ((CHAR8*)String);
 101 }
 102