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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
737 lines
16 KiB
C
737 lines
16 KiB
C
/*++
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Copyright (c) 2004, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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Module Name:
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Print.c
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Abstract:
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Basic Ascii AvSPrintf() function named AvSPrint(). AvSPrint() enables very
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simple implemenation of debug prints.
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You can not Print more than PEI_LIB_MAX_PRINT_BUFFER characters at a
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time. This makes the implementation very simple.
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AvSPrint format specification has the follwoing form
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%[flags][width]type
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flags:
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'-' - Left justify
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'+' - Prefix a sign
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' ' - Prefix a blank
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',' - Place commas in numberss
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'0' - Prefix for width with zeros
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'l' - UINT64
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'L' - UINT64
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width:
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'*' - Get width from a UINTN argumnet from the argument list
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Decimal number that represents width of print
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type:
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'X' - argument is a UINTN hex number, prefix '0'
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'x' - argument is a hex number
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'd' - argument is a decimal number
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'a' - argument is an ascii string
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'S', 's' - argument is an Unicode string
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'g' - argument is a pointer to an EFI_GUID
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't' - argument is a pointer to an EFI_TIME structure
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'c' - argument is an ascii character
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'r' - argument is EFI_STATUS
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'%' - Print a %
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--*/
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#include "Tiano.h"
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#include "Pei.h"
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#include "PeiLib.h"
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#include "Print.h"
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STATIC
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CHAR8 *
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GetFlagsAndWidth (
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IN CHAR8 *Format,
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OUT UINTN *Flags,
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OUT UINTN *Width,
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IN OUT VA_LIST *Marker
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);
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STATIC
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UINTN
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ValueToString (
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IN OUT CHAR8 *Buffer,
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IN INT64 Value,
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IN UINTN Flags,
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IN UINTN Width
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);
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STATIC
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UINTN
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ValueTomHexStr (
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IN OUT CHAR8 *Buffer,
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IN UINT64 Value,
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IN UINTN Flags,
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IN UINTN Width
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);
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STATIC
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UINTN
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GuidToString (
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IN EFI_GUID *Guid,
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IN OUT CHAR8 *Buffer,
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IN UINTN BufferSize
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);
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STATIC
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UINTN
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TimeToString (
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IN EFI_TIME *Time,
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IN OUT CHAR8 *Buffer,
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IN UINTN BufferSize
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);
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STATIC
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UINTN
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EfiStatusToString (
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IN EFI_STATUS Status,
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OUT CHAR8 *Buffer,
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IN UINTN BufferSize
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);
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UINTN
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ASPrint (
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OUT CHAR8 *Buffer,
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IN UINTN BufferSize,
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IN CONST CHAR8 *Format,
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...
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)
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/*++
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Routine Description:
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ASPrint function to process format and place the results in Buffer.
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Arguments:
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Buffer - Ascii buffer to print the results of the parsing of Format into.
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BufferSize - Maximum number of characters to put into buffer. Zero means no
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limit.
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Format - Ascii format string see file header for more details.
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... - Vararg list consumed by processing Format.
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Returns:
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Number of characters printed.
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--*/
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{
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UINTN Return;
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VA_LIST Marker;
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VA_START(Marker, Format);
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Return = AvSPrint(Buffer, BufferSize, Format, Marker);
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VA_END (Marker);
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return Return;
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}
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UINTN
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AvSPrint (
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OUT CHAR8 *StartOfBuffer,
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IN UINTN BufferSize,
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IN CONST CHAR8 *FormatString,
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IN VA_LIST Marker
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)
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/*++
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Routine Description:
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AvSPrint function to process format and place the results in Buffer. Since a
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VA_LIST is used this rountine allows the nesting of Vararg routines. Thus
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this is the main print working routine
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Arguments:
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StartOfBuffer - Ascii buffer to print the results of the parsing of Format into.
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BufferSize - Maximum number of characters to put into buffer. Zero means
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no limit.
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FormatString - Ascii format string see file header for more details.
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Marker - Vararg list consumed by processing Format.
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Returns:
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Number of characters printed.
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--*/
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{
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CHAR8 *Buffer;
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CHAR8 *AsciiStr;
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CHAR16 *UnicodeStr;
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CHAR8 *Format;
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UINTN Index;
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UINTN Flags;
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UINTN Width;
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UINT64 Value;
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//
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// Process the format string. Stop if Buffer is over run.
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//
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Buffer = StartOfBuffer;
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Format = (CHAR8 *)FormatString;
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for (Index = 0; (*Format != '\0') && (Index < BufferSize); Format++) {
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if (*Format != '%') {
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if (*Format == '\n') {
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//
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// If carage return add line feed
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//
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Buffer[Index++] = '\r';
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}
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Buffer[Index++] = *Format;
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} else {
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//
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// Now it's time to parse what follows after %
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//
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Format = GetFlagsAndWidth (Format, &Flags, &Width, &Marker);
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switch (*Format) {
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case 'X':
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Flags |= PREFIX_ZERO;
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Width = sizeof (UINT64) * 2;
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//
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// break skiped on purpose
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//
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case 'x':
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if ((Flags & LONG_TYPE) == LONG_TYPE) {
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Value = VA_ARG (Marker, UINT64);
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} else {
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Value = VA_ARG (Marker, UINTN);
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}
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Index += ValueTomHexStr (&Buffer[Index], Value, Flags, Width);
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break;
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case 'd':
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if ((Flags & LONG_TYPE) == LONG_TYPE) {
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Value = VA_ARG (Marker, UINT64);
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} else {
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Value = (UINTN)VA_ARG (Marker, UINTN);
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}
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Index += ValueToString (&Buffer[Index], Value, Flags, Width);
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break;
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case 's':
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case 'S':
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UnicodeStr = (CHAR16 *)VA_ARG (Marker, CHAR16 *);
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if (UnicodeStr == NULL) {
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UnicodeStr = L"<null string>";
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}
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for ( ;*UnicodeStr != '\0'; UnicodeStr++) {
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Buffer[Index++] = (CHAR8)*UnicodeStr;
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}
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break;
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case 'a':
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AsciiStr = (CHAR8 *)VA_ARG (Marker, CHAR8 *);
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if (AsciiStr == NULL) {
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AsciiStr = "<null string>";
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}
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while (*AsciiStr != '\0') {
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Buffer[Index++] = *AsciiStr++;
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}
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break;
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case 'c':
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Buffer[Index++] = (CHAR8)VA_ARG (Marker, UINTN);
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break;
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case 'g':
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Index += GuidToString (
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VA_ARG (Marker, EFI_GUID *),
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&Buffer[Index],
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BufferSize
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);
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break;
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case 't':
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Index += TimeToString (
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VA_ARG (Marker, EFI_TIME *),
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&Buffer[Index],
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BufferSize
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);
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break;
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case 'r':
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Index += EfiStatusToString (
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VA_ARG (Marker, EFI_STATUS),
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&Buffer[Index],
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BufferSize
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);
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break;
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case '%':
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Buffer[Index++] = *Format;
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break;
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default:
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//
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// if the type is unknown print it to the screen
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//
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Buffer[Index++] = *Format;
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}
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}
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}
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Buffer[Index++] = '\0';
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return &Buffer[Index] - StartOfBuffer;
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}
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STATIC
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CHAR8 *
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GetFlagsAndWidth (
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IN CHAR8 *Format,
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OUT UINTN *Flags,
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OUT UINTN *Width,
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IN OUT VA_LIST *Marker
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)
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/*++
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Routine Description:
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AvSPrint worker function that parses flag and width information from the
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Format string and returns the next index into the Format string that needs
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to be parsed. See file headed for details of Flag and Width.
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Arguments:
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Format - Current location in the AvSPrint format string.
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Flags - Returns flags
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Width - Returns width of element
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Marker - Vararg list that may be paritally consumed and returned.
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Returns:
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Pointer indexed into the Format string for all the information parsed
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by this routine.
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--*/
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{
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UINTN Count;
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BOOLEAN Done;
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*Flags = 0;
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*Width = 0;
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for (Done = FALSE; !Done; ) {
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Format++;
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switch (*Format) {
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case '-': *Flags |= LEFT_JUSTIFY; break;
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case '+': *Flags |= PREFIX_SIGN; break;
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case ' ': *Flags |= PREFIX_BLANK; break;
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case ',': *Flags |= COMMA_TYPE; break;
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case 'L':
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case 'l': *Flags |= LONG_TYPE; break;
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case '*':
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*Width = VA_ARG (*Marker, UINTN);
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break;
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case '0':
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*Flags |= PREFIX_ZERO;
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case '1':
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case '2':
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case '3':
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case '4':
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case '5':
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case '6':
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case '7':
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case '8':
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case '9':
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Count = 0;
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do {
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Count = (Count * 10) + *Format - '0';
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Format++;
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} while ((*Format >= '0') && (*Format <= '9'));
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Format--;
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*Width = Count;
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break;
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default:
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Done = TRUE;
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}
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}
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return Format;
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}
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static CHAR8 mHexStr[] = { '0','1','2','3','4','5','6','7',
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'8','9','A','B','C','D','E','F' };
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STATIC
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UINTN
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ValueTomHexStr (
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IN OUT CHAR8 *Buffer,
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IN UINT64 Value,
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IN UINTN Flags,
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IN UINTN Width
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)
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/*++
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Routine Description:
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AvSPrint worker function that prints a Value as a hex number in Buffer
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Arguments:
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Buffer - Location to place ascii hex string of Value.
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Value - Hex value to convert to a string in Buffer.
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Flags - Flags to use in printing Hex string, see file header for details.
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Width - Width of hex value.
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Returns:
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Number of characters printed.
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--*/
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{
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CHAR8 TempBuffer[30];
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CHAR8 *TempStr;
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CHAR8 Prefix;
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CHAR8 *BufferPtr;
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UINTN Count;
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UINTN Index;
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TempStr = TempBuffer;
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BufferPtr = Buffer;
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//
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// Count starts at one since we will null terminate. Each iteration of the
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// loop picks off one nibble. Oh yea TempStr ends up backwards
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//
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Count = 0;
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do {
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*(TempStr++) = mHexStr[Value & 0x0f];
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Value = RShiftU64 (Value, 4);
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Count++;
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} while (Value != 0);
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if (Flags & PREFIX_ZERO) {
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Prefix = '0';
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} else if (!(Flags & LEFT_JUSTIFY)) {
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Prefix = ' ';
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} else {
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Prefix = 0x00;
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}
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for (Index = Count; Index < Width; Index++) {
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*(TempStr++) = Prefix;
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}
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//
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// Reverse temp string into Buffer.
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//
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while (TempStr != TempBuffer) {
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*(BufferPtr++) = *(--TempStr);
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}
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*BufferPtr = 0;
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return Index;
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}
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STATIC
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UINTN
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ValueToString (
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IN OUT CHAR8 *Buffer,
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IN INT64 Value,
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IN UINTN Flags,
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IN UINTN Width
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)
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/*++
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Routine Description:
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AvSPrint worker function that prints a Value as a decimal number in Buffer
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Arguments:
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Buffer - Location to place ascii decimal number string of Value.
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Value - Decimal value to convert to a string in Buffer.
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Flags - Flags to use in printing decimal string, see file header for details.
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Width - Width of hex value.
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Returns:
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Number of characters printed.
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--*/
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{
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CHAR8 TempBuffer[30];
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CHAR8 *TempStr;
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CHAR8 *BufferPtr;
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UINTN Count;
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UINTN Remainder;
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TempStr = TempBuffer;
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BufferPtr = Buffer;
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Count = 0;
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if (Value < 0) {
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*(BufferPtr++) = '-';
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Value = -Value;
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Count++;
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}
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do {
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Value = (INT64)DivU64x32 ((UINT64)Value, 10, &Remainder);
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*(TempStr++) = (CHAR8)(Remainder + '0');
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Count++;
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if ((Flags & COMMA_TYPE) == COMMA_TYPE) {
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if (Count % 3 == 0) {
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*(TempStr++) = ',';
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}
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}
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} while (Value != 0);
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//
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// Reverse temp string into Buffer.
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//
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while (TempStr != TempBuffer) {
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*(BufferPtr++) = *(--TempStr);
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}
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*BufferPtr = 0;
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return Count;
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}
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STATIC
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UINTN
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GuidToString (
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IN EFI_GUID *Guid,
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IN CHAR8 *Buffer,
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IN UINTN BufferSize
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)
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/*++
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Routine Description:
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AvSPrint worker function that prints an EFI_GUID.
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Arguments:
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Guid - Pointer to GUID to print.
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Buffer - Buffe to print Guid into.
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BufferSize - Size of Buffer.
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Returns:
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Number of characters printed.
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--*/
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{
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UINTN Size;
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Size = ASPrint (
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Buffer,
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BufferSize,
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"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
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Guid->Data1,
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Guid->Data2,
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Guid->Data3,
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Guid->Data4[0],
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Guid->Data4[1],
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Guid->Data4[2],
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Guid->Data4[3],
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Guid->Data4[4],
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Guid->Data4[5],
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Guid->Data4[6],
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Guid->Data4[7]
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);
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//
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// ASPrint will null terminate the string. The -1 skips the null
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//
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return Size - 1;
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}
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STATIC
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UINTN
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TimeToString (
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IN EFI_TIME *Time,
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OUT CHAR8 *Buffer,
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IN UINTN BufferSize
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)
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/*++
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Routine Description:
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AvSPrint worker function that prints EFI_TIME.
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Arguments:
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Time - Pointer to EFI_TIME sturcture to print.
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Buffer - Buffer to print Time into.
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BufferSize - Size of Buffer.
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Returns:
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Number of characters printed.
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--*/
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{
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UINTN Size;
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Size = ASPrint (
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Buffer,
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BufferSize,
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"%02d/%02d/%04d %02d:%02d",
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Time->Month,
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Time->Day,
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Time->Year,
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Time->Hour,
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Time->Minute
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);
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//
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// ASPrint will null terminate the string. The -1 skips the null
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//
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return Size - 1;
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}
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STATIC
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UINTN
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EfiStatusToString (
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IN EFI_STATUS Status,
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OUT CHAR8 *Buffer,
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IN UINTN BufferSize
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)
|
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/*++
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|
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Routine Description:
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|
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AvSPrint worker function that prints EFI_STATUS as a string. If string is
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not known a hex value will be printed.
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Arguments:
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Status - EFI_STATUS sturcture to print.
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Buffer - Buffer to print EFI_STATUS message string into.
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BufferSize - Size of Buffer.
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|
|
Returns:
|
|
|
|
Number of characters printed.
|
|
|
|
--*/
|
|
{
|
|
UINTN Size;
|
|
CHAR8 *Desc;
|
|
|
|
if (Status == EFI_SUCCESS) {
|
|
Desc = "Success";
|
|
} else if (Status == EFI_LOAD_ERROR) {
|
|
Desc = "Load Error";
|
|
} else if (Status == EFI_INVALID_PARAMETER) {
|
|
Desc = "Invalid Parameter";
|
|
} else if (Status == EFI_UNSUPPORTED) {
|
|
Desc = "Unsupported";
|
|
} else if (Status == EFI_BAD_BUFFER_SIZE) {
|
|
Desc = "Bad Buffer Size";
|
|
} else if (Status == EFI_BUFFER_TOO_SMALL) {
|
|
Desc = "Buffer Too Small";
|
|
} else if (Status == EFI_NOT_READY) {
|
|
Desc = "Not Ready";
|
|
} else if (Status == EFI_DEVICE_ERROR) {
|
|
Desc = "Device Error";
|
|
} else if (Status == EFI_WRITE_PROTECTED) {
|
|
Desc = "Write Protected";
|
|
} else if (Status == EFI_OUT_OF_RESOURCES) {
|
|
Desc = "Out of Resources";
|
|
} else if (Status == EFI_VOLUME_CORRUPTED) {
|
|
Desc = "Volume Corrupt";
|
|
} else if (Status == EFI_VOLUME_FULL) {
|
|
Desc = "Volume Full";
|
|
} else if (Status == EFI_NO_MEDIA) {
|
|
Desc = "No Media";
|
|
} else if (Status == EFI_MEDIA_CHANGED) {
|
|
Desc = "Media changed";
|
|
} else if (Status == EFI_NOT_FOUND) {
|
|
Desc = "Not Found";
|
|
} else if (Status == EFI_ACCESS_DENIED) {
|
|
Desc = "Access Denied";
|
|
} else if (Status == EFI_NO_RESPONSE) {
|
|
Desc = "No Response";
|
|
} else if (Status == EFI_NO_MAPPING) {
|
|
Desc = "No mapping";
|
|
} else if (Status == EFI_TIMEOUT) {
|
|
Desc = "Time out";
|
|
} else if (Status == EFI_NOT_STARTED) {
|
|
Desc = "Not started";
|
|
} else if (Status == EFI_ALREADY_STARTED) {
|
|
Desc = "Already started";
|
|
} else if (Status == EFI_ABORTED) {
|
|
Desc = "Aborted";
|
|
} else if (Status == EFI_ICMP_ERROR) {
|
|
Desc = "ICMP Error";
|
|
} else if (Status == EFI_TFTP_ERROR) {
|
|
Desc = "TFTP Error";
|
|
} else if (Status == EFI_PROTOCOL_ERROR) {
|
|
Desc = "Protocol Error";
|
|
} else if (Status == EFI_WARN_UNKNOWN_GLYPH) {
|
|
Desc = "Warning Unknown Glyph";
|
|
} else if (Status == EFI_WARN_DELETE_FAILURE) {
|
|
Desc = "Warning Delete Failure";
|
|
} else if (Status == EFI_WARN_WRITE_FAILURE) {
|
|
Desc = "Warning Write Failure";
|
|
} else if (Status == EFI_WARN_BUFFER_TOO_SMALL) {
|
|
Desc = "Warning Buffer Too Small";
|
|
} else {
|
|
Desc = NULL;
|
|
}
|
|
//
|
|
// If we found a match, copy the message to the user's buffer. Otherwise
|
|
// sprint the hex status code to their buffer.
|
|
//
|
|
if (Desc != NULL) {
|
|
Size = ASPrint (Buffer, BufferSize, "%a", Desc);
|
|
} else {
|
|
Size = ASPrint (Buffer, BufferSize, "%X", Status);
|
|
}
|
|
return Size - 1;
|
|
}
|