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author | raywu <raywu0301@gmail.com> | 2018-06-15 00:00:50 +0800 |
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committer | raywu <raywu0301@gmail.com> | 2018-06-15 00:00:50 +0800 |
commit | b7c51c9cf4864df6aabb99a1ae843becd577237c (patch) | |
tree | eebe9b0d0ca03062955223097e57da84dd618b9a /EDK/Foundation/Library/Dxe/PrintLite/Print.c | |
download | zprj-b7c51c9cf4864df6aabb99a1ae843becd577237c.tar.xz |
Diffstat (limited to 'EDK/Foundation/Library/Dxe/PrintLite/Print.c')
-rw-r--r-- | EDK/Foundation/Library/Dxe/PrintLite/Print.c | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/Dxe/PrintLite/Print.c b/EDK/Foundation/Library/Dxe/PrintLite/Print.c new file mode 100644 index 0000000..35b2327 --- /dev/null +++ b/EDK/Foundation/Library/Dxe/PrintLite/Print.c @@ -0,0 +1,194 @@ +/*++ + +Copyright (c) 2004, Intel Corporation +All rights reserved. This program and the accompanying materials +are licensed and made available under the terms and conditions of the BSD License +which 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. + +Module Name: + + Print.c + +Abstract: + + Basic Ascii AvSPrintf() function named VSPrint(). VSPrint() enables very + simple implemenation of SPrint() and Print() to support debug. + + You can not Print more than EFI_DRIVER_LIB_MAX_PRINT_BUFFER characters at a + time. This makes the implementation very simple. + + VSPrint, Print, SPrint format specification has the follwoing form + + %[flags][width]type + + flags: + '-' - Left justify + '+' - Prefix a sign + ' ' - Prefix a blank + ',' - Place commas in numberss + '0' - Prefix for width with zeros + 'l' - UINT64 + 'L' - UINT64 + + width: + '*' - Get width from a UINTN argumnet from the argument list + Decimal number that represents width of print + + type: + 'X' - argument is a UINTN hex number, prefix '0' + 'x' - argument is a hex number + 'd' - argument is a decimal number + 'a' - argument is an ascii string + 'S','s' - argument is an Unicode string + 'g' - argument is a pointer to an EFI_GUID + 't' - argument is a pointer to an EFI_TIME structure + 'c' - argument is an ascii character + 'r' - argument is EFI_STATUS + '%' - Print a % + +--*/ + +#include "Tiano.h" +#include "EfiDriverLib.h" +#include "TianoCommon.h" +#include "EfiCommonLib.h" +#include "PrintWidth.h" +#include "EfiPrintLib.h" +#include "Print.h" + +#ifndef EFI_PRINT_LITE +STATIC +CHAR_W * +GetFlagsAndWidth ( + IN CHAR_W *Format, + OUT UINTN *Flags, + OUT UINTN *Width, + IN OUT VA_LIST *Marker + ); + +STATIC +UINTN +GuidToString ( + IN EFI_GUID *Guid, + IN OUT CHAR_W *Buffer, + IN UINTN BufferSize + ); + +STATIC +UINTN +TimeToString ( + IN EFI_TIME *Time, + IN OUT CHAR_W *Buffer, + IN UINTN BufferSize + ); + +STATIC +UINTN +EfiStatusToString ( + IN EFI_STATUS Status, + OUT CHAR_W *Buffer, + IN UINTN BufferSize + ); + +#endif +STATIC +UINTN +Atoi ( + CHAR_W *String + ); + +UINTN +SPrint ( + OUT CHAR_W *Buffer, + IN UINTN BufferSize, + IN CONST CHAR_W *Format, + ... + ) +/*++ + +Routine Description: + + SPrint function to process format and place the results in Buffer. + +Arguments: + + Buffer - Wide char buffer to print the results of the parsing of Format into. + + BufferSize - Maximum number of characters to put into buffer. Zero means no + limit. + + Format - Format string see file header for more details. + + ... - Vararg list consumed by processing Format. + +Returns: + + Number of characters printed. + +--*/ +{ + UINTN Return; + VA_LIST Marker; + + VA_START (Marker, Format); + Return = VSPrint (Buffer, BufferSize, Format, Marker); + VA_END (Marker); + + return Return; +} + +UINTN +VSPrint ( + OUT CHAR_W *StartOfBuffer, + IN UINTN BufferSize, + IN CONST CHAR_W *FormatString, + IN VA_LIST Marker + ) +/*++ + +Routine Description: + + VSPrint function to process format and place the results in Buffer. Since a + VA_LIST is used this rountine allows the nesting of Vararg routines. Thus + this is the main print working routine + +Arguments: + + StartOfBuffer - Unicode buffer to print the results of the parsing of Format into. + + BufferSize - Maximum number of characters to put into buffer. Zero means + no limit. + + FormatString - Unicode format string see file header for more details. + + Marker - Vararg list consumed by processing Format. + +Returns: + + Number of characters printed. + +--*/ +{ + EFI_STATUS Status; + EFI_PRINT_PROTOCOL *PrintProtocol; + + Status = gBS->LocateProtocol ( + &gEfiPrintProtocolGuid, + NULL, + (VOID*)&PrintProtocol + ); + if (EFI_ERROR (Status)) { + return 0; + } else { + return PrintProtocol->VSPrint ( + StartOfBuffer, + BufferSize, + FormatString, + Marker + ); + } +} |