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audk/MdeModulePkg/Include/Protocol/Print2.h
Hao Wu e5735b98c2 MdeModulePkg/Print2: Refine the comment for ASCII_VALUE_TO_STRING_S 
The commit refines the comment description for EFI_PRINT2S_PROTOCOL
service ASCII_VALUE_TO_STRING_S.

This service will not ASSERT when the input/output parameter 'Buffer' is
not aligned on a 16-bit boundary.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
2017-03-13 11:09:34 +08:00

664 lines
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/** @file
Produces EFI_PRINT2_PROTOCOL and EFI_PRINT2S_PROTOCOL.
These protocols define basic print functions to print the format unicode and
ascii string.
Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available under
the terms and conditions of the BSD License that accompanies this distribution.
The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php.
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __PPRINT2_H__
#define __PPRINT2_H__
#define EFI_PRINT2_PROTOCOL_GUID \
{ 0xf05976ef, 0x83f1, 0x4f3d, { 0x86, 0x19, 0xf7, 0x59, 0x5d, 0x41, 0xe5, 0x38 } }
//
// Forward reference for pure ANSI compatability
//
typedef struct _EFI_PRINT2_PROTOCOL EFI_PRINT2_PROTOCOL;
/**
Produces a Null-terminated Unicode string in an output buffer based on
a Null-terminated Unicode format string and a BASE_LIST argument list.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker BASE_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *UNICODE_BS_PRINT)(
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
IN BASE_LIST Marker
);
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
Unicode format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then the output buffer is unmodified and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *UNICODE_S_PRINT)(
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
...
);
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
ASCII format string and a BASE_LIST argument list.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on the
contents of the format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker BASE_LIST marker for the variable argument list.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *UNICODE_BS_PRINT_ASCII_FORMAT)(
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN BASE_LIST Marker
);
/**
Produces a Null-terminated Unicode string in an output buffer based on a Null-terminated
ASCII format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated Unicode string in the output buffer specified by StartOfBuffer
and BufferSize.
The Unicode string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of Unicode characters in the produced output buffer is returned not including
the Null-terminator.
If StartOfBuffer is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 1 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 1 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and BufferSize >
(PcdMaximumUnicodeStringLength * sizeof (CHAR16) + 1), then ASSERT(). Also, the output
buffer is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0 or 1, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
Unicode string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
@return The number of Unicode characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *UNICODE_S_PRINT_ASCII_FORMAT)(
OUT CHAR16 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
...
);
/**
Converts a decimal value to a Null-terminated Unicode string.
Converts the decimal number specified by Value to a Null-terminated Unicode
string specified by Buffer containing at most Width characters. No padding of spaces
is ever performed. If Width is 0, then a width of MAXIMUM_VALUE_CHARACTERS is assumed.
This function returns the number of Unicode characters in Buffer, not including
the Null-terminator.
If the conversion contains more than Width characters, this function returns
the first Width characters in the conversion, along with the total number of characters in the conversion.
Additional conversion parameters are specified in Flags.
The Flags bit LEFT_JUSTIFY is always ignored.
All conversions are left justified in Buffer.
If Width is 0, PREFIX_ZERO is ignored in Flags.
If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas
are inserted every 3rd digit starting from the right.
If RADIX_HEX is set in Flags, then the output buffer will be
formatted in hexadecimal format.
If Value is < 0 and RADIX_HEX is not set in Flags, then the fist character in Buffer is a '-'.
If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored,
then Buffer is padded with '0' characters so the combination of the optional '-'
sign character, '0' characters, digit characters for Value, and the Null-terminator
add up to Width characters.
If both COMMA_TYPE and RADIX_HEX are set in Flags, then ASSERT().
If Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
If unsupported bits are set in Flags, then ASSERT().
If both COMMA_TYPE and RADIX_HEX are set in Flags, then ASSERT().
If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()
@param Buffer The pointer to the output buffer for the produced Null-terminated
Unicode string.
@param Flags The bitmask of flags that specify left justification, zero pad, and commas.
@param Value The 64-bit signed value to convert to a string.
@param Width The maximum number of Unicode characters to place in Buffer, not including
the Null-terminator.
@return The number of Unicode characters in Buffer not including the Null-terminator.
**/
typedef
UINTN
(EFIAPI *UNICODE_VALUE_TO_STRING)(
IN OUT CHAR16 *Buffer,
IN UINTN Flags,
IN INT64 Value,
IN UINTN Width
);
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and a BASE_LIST argument list.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param Marker BASE_LIST marker for the variable argument list.
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *ASCII_BS_PRINT)(
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
IN BASE_LIST Marker
);
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
ASCII format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and FormatString contains more than
PcdMaximumAsciiStringLength Ascii characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated ASCII format string.
@param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *ASCII_S_PRINT)(
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR8 *FormatString,
...
);
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and a BASE_LIST argument list.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list specified by Marker based on
the contents of the format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param Marker BASE_LIST marker for the variable argument list.
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *ASCII_BS_PRINT_UNICODE_FORMAT)(
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
IN BASE_LIST Marker
);
/**
Produces a Null-terminated ASCII string in an output buffer based on a Null-terminated
Unicode format string and variable argument list.
This function is similar as snprintf_s defined in C11.
Produces a Null-terminated ASCII string in the output buffer specified by StartOfBuffer
and BufferSize.
The ASCII string is produced by parsing the format string specified by FormatString.
Arguments are pulled from the variable argument list based on the contents of the
format string.
The number of ASCII characters in the produced output buffer is returned not including
the Null-terminator.
If FormatString is not aligned on a 16-bit boundary, then ASSERT().
If BufferSize > 0 and StartOfBuffer is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If BufferSize > 0 and FormatString is NULL, then ASSERT(). Also, the output buffer is
unmodified and 0 is returned.
If PcdMaximumAsciiStringLength is not zero, and BufferSize >
(PcdMaximumAsciiStringLength * sizeof (CHAR8)), then ASSERT(). Also, the output buffer
is unmodified and 0 is returned.
If PcdMaximumUnicodeStringLength is not zero, and FormatString contains more than
PcdMaximumUnicodeStringLength Unicode characters not including the Null-terminator, then
ASSERT(). Also, the output buffer is unmodified and 0 is returned.
If BufferSize is 0, then no output buffer is produced and 0 is returned.
@param StartOfBuffer A pointer to the output buffer for the produced Null-terminated
ASCII string.
@param BufferSize The size, in bytes, of the output buffer specified by StartOfBuffer.
@param FormatString A Null-terminated Unicode format string.
@param ... Variable argument list whose contents are accessed based on the
format string specified by FormatString.
@return The number of ASCII characters in the produced output buffer not including the
Null-terminator.
**/
typedef
UINTN
(EFIAPI *ASCII_S_PRINT_UNICODE_FORMAT)(
OUT CHAR8 *StartOfBuffer,
IN UINTN BufferSize,
IN CONST CHAR16 *FormatString,
...
);
/**
Converts a decimal value to a Null-terminated ASCII string.
Converts the decimal number specified by Value to a Null-terminated ASCII string
specified by Buffer containing at most Width characters. No padding of spaces is ever performed.
If Width is 0 then a width of MAXIMUM_VALUE_CHARACTERS is assumed.
The number of ASCII characters in Buffer is returned not including the Null-terminator.
If the conversion contains more than Width characters, then only the first Width
characters are returned, and the total number of characters required to perform
the conversion is returned.
Additional conversion parameters are specified in Flags.
The Flags bit LEFT_JUSTIFY is always ignored.
All conversions are left justified in Buffer.
If Width is 0, PREFIX_ZERO is ignored in Flags.
If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and commas
are inserted every 3rd digit starting from the right.
If RADIX_HEX is set in Flags, then the output buffer will be
formatted in hexadecimal format.
If Value is < 0 and RADIX_HEX is not set in Flags, then the fist character in Buffer is a '-'.
If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored,
then Buffer is padded with '0' characters so the combination of the optional '-'
sign character, '0' characters, digit characters for Value, and the Null-terminator
add up to Width characters.
If Buffer is NULL, then ASSERT().
If unsupported bits are set in Flags, then ASSERT().
If both COMMA_TYPE and RADIX_HEX are set in Flags, then ASSERT().
If Width >= MAXIMUM_VALUE_CHARACTERS, then ASSERT()
@param Buffer The pointer to the output buffer for the produced Null-terminated
ASCII string.
@param Flags The bitmask of flags that specify left justification, zero pad, and commas.
@param Value The 64-bit signed value to convert to a string.
@param Width The maximum number of ASCII characters to place in Buffer, not including
the Null-terminator.
@return The number of ASCII characters in Buffer not including the Null-terminator.
**/
typedef
UINTN
(EFIAPI *ASCII_VALUE_TO_STRING)(
OUT CHAR8 *Buffer,
IN UINTN Flags,
IN INT64 Value,
IN UINTN Width
);
struct _EFI_PRINT2_PROTOCOL {
UNICODE_BS_PRINT UnicodeBSPrint;
UNICODE_S_PRINT UnicodeSPrint;
UNICODE_BS_PRINT_ASCII_FORMAT UnicodeBSPrintAsciiFormat;
UNICODE_S_PRINT_ASCII_FORMAT UnicodeSPrintAsciiFormat;
UNICODE_VALUE_TO_STRING UnicodeValueToString;
ASCII_BS_PRINT AsciiBSPrint;
ASCII_S_PRINT AsciiSPrint;
ASCII_BS_PRINT_UNICODE_FORMAT AsciiBSPrintUnicodeFormat;
ASCII_S_PRINT_UNICODE_FORMAT AsciiSPrintUnicodeFormat;
ASCII_VALUE_TO_STRING AsciiValueToString;
};
extern EFI_GUID gEfiPrint2ProtocolGuid;
#define EFI_PRINT2S_PROTOCOL_GUID \
{ 0xcc252d2, 0xc106, 0x4661, { 0xb5, 0xbd, 0x31, 0x47, 0xa4, 0xf8, 0x1f, 0x92 } }
//
// Forward reference for pure ANSI compatability
//
typedef struct _EFI_PRINT2S_PROTOCOL EFI_PRINT2S_PROTOCOL;
/**
Converts a decimal value to a Null-terminated Unicode string.
Converts the decimal number specified by Value to a Null-terminated Unicode
string specified by Buffer containing at most Width characters. No padding of
spaces is ever performed. If Width is 0 then a width of
MAXIMUM_VALUE_CHARACTERS is assumed. If the conversion contains more than
Width characters, then only the first Width characters are placed in Buffer.
Additional conversion parameters are specified in Flags.
The Flags bit LEFT_JUSTIFY is always ignored.
All conversions are left justified in Buffer.
If Width is 0, PREFIX_ZERO is ignored in Flags.
If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and
commas are inserted every 3rd digit starting from the right.
If RADIX_HEX is set in Flags, then the output buffer will be formatted in
hexadecimal format.
If Value is < 0 and RADIX_HEX is not set in Flags, then the fist character in
Buffer is a '-'.
If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, then
Buffer is padded with '0' characters so the combination of the optional '-'
sign character, '0' characters, digit characters for Value, and the
Null-terminator add up to Width characters.
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
If an error would be returned, then the function will also ASSERT().
@param Buffer The pointer to the output buffer for the produced
Null-terminated Unicode string.
@param BufferSize The size of Buffer in bytes, including the
Null-terminator.
@param Flags The bitmask of flags that specify left justification,
zero pad, and commas.
@param Value The 64-bit signed value to convert to a string.
@param Width The maximum number of Unicode characters to place in
Buffer, not including the Null-terminator.
@retval RETURN_SUCCESS The decimal value is converted.
@retval RETURN_BUFFER_TOO_SMALL If BufferSize cannot hold the converted
value.
@retval RETURN_INVALID_PARAMETER If Buffer is NULL.
If PcdMaximumUnicodeStringLength is not
zero, and BufferSize is greater than
(PcdMaximumUnicodeStringLength *
sizeof (CHAR16) + 1).
If unsupported bits are set in Flags.
If both COMMA_TYPE and RADIX_HEX are set in
Flags.
If Width >= MAXIMUM_VALUE_CHARACTERS.
**/
typedef
RETURN_STATUS
(EFIAPI *UNICODE_VALUE_TO_STRING_S)(
IN OUT CHAR16 *Buffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN INT64 Value,
IN UINTN Width
);
/**
Converts a decimal value to a Null-terminated Ascii string.
Converts the decimal number specified by Value to a Null-terminated Ascii
string specified by Buffer containing at most Width characters. No padding of
spaces is ever performed. If Width is 0 then a width of
MAXIMUM_VALUE_CHARACTERS is assumed. If the conversion contains more than
Width characters, then only the first Width characters are placed in Buffer.
Additional conversion parameters are specified in Flags.
The Flags bit LEFT_JUSTIFY is always ignored.
All conversions are left justified in Buffer.
If Width is 0, PREFIX_ZERO is ignored in Flags.
If COMMA_TYPE is set in Flags, then PREFIX_ZERO is ignored in Flags, and
commas are inserted every 3rd digit starting from the right.
If RADIX_HEX is set in Flags, then the output buffer will be formatted in
hexadecimal format.
If Value is < 0 and RADIX_HEX is not set in Flags, then the fist character in
Buffer is a '-'.
If PREFIX_ZERO is set in Flags and PREFIX_ZERO is not being ignored, then
Buffer is padded with '0' characters so the combination of the optional '-'
sign character, '0' characters, digit characters for Value, and the
Null-terminator add up to Width characters.
If an error would be returned, then the function will ASSERT().
@param Buffer The pointer to the output buffer for the produced
Null-terminated Ascii string.
@param BufferSize The size of Buffer in bytes, including the
Null-terminator.
@param Flags The bitmask of flags that specify left justification,
zero pad, and commas.
@param Value The 64-bit signed value to convert to a string.
@param Width The maximum number of Ascii characters to place in
Buffer, not including the Null-terminator.
@retval RETURN_SUCCESS The decimal value is converted.
@retval RETURN_BUFFER_TOO_SMALL If BufferSize cannot hold the converted
value.
@retval RETURN_INVALID_PARAMETER If Buffer is NULL.
If PcdMaximumAsciiStringLength is not
zero, and BufferSize is greater than
PcdMaximumAsciiStringLength.
If unsupported bits are set in Flags.
If both COMMA_TYPE and RADIX_HEX are set in
Flags.
If Width >= MAXIMUM_VALUE_CHARACTERS.
**/
typedef
RETURN_STATUS
(EFIAPI *ASCII_VALUE_TO_STRING_S)(
IN OUT CHAR8 *Buffer,
IN UINTN BufferSize,
IN UINTN Flags,
IN INT64 Value,
IN UINTN Width
);
struct _EFI_PRINT2S_PROTOCOL {
UNICODE_BS_PRINT UnicodeBSPrint;
UNICODE_S_PRINT UnicodeSPrint;
UNICODE_BS_PRINT_ASCII_FORMAT UnicodeBSPrintAsciiFormat;
UNICODE_S_PRINT_ASCII_FORMAT UnicodeSPrintAsciiFormat;
UNICODE_VALUE_TO_STRING_S UnicodeValueToStringS;
ASCII_BS_PRINT AsciiBSPrint;
ASCII_S_PRINT AsciiSPrint;
ASCII_BS_PRINT_UNICODE_FORMAT AsciiBSPrintUnicodeFormat;
ASCII_S_PRINT_UNICODE_FORMAT AsciiSPrintUnicodeFormat;
ASCII_VALUE_TO_STRING_S AsciiValueToStringS;
};
extern EFI_GUID gEfiPrint2SProtocolGuid;
#endif
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