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gnu-efi/lib/print.c
Pete Batard 0247cb7cd4 Add AsciiPrint and AsciiVSPrint 
Per https://github.com/tianocore/edk2/blob/master/MdePkg/Include/Library/PrintLib.h
AsciiPrint() is the official name of APrint() so declare it as such and define
an APrint alias for compatibility.

Also add an AsciiVSPrint() to print a formatted ASCII string to a buffer using
a va_list. AsciiPrint() too is defined in EDK2's PrintLib.h, though our implementation
just invokes the Unicode version and then converts the buffer to ASCII.
2021-02-18 10:11:44 -05:00

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/*++
Copyright (c) 1998 Intel Corporation
Module Name:
print.c
Abstract:
Revision History
--*/
#include "lib.h"
#include "efistdarg.h" // !!!
//
// Declare runtime functions
//
#ifdef RUNTIME_CODE
#ifndef __GNUC__
#pragma RUNTIME_CODE(DbgPrint)
// For debugging..
/*
#pragma RUNTIME_CODE(_Print)
#pragma RUNTIME_CODE(PFLUSH)
#pragma RUNTIME_CODE(PSETATTR)
#pragma RUNTIME_CODE(PPUTC)
#pragma RUNTIME_CODE(PGETC)
#pragma RUNTIME_CODE(PITEM)
#pragma RUNTIME_CODE(ValueToHex)
#pragma RUNTIME_CODE(ValueToString)
#pragma RUNTIME_CODE(TimeToString)
*/
#endif /* !defined(__GNUC__) */
#endif
//
//
//
#define PRINT_STRING_LEN 200
#define PRINT_ITEM_BUFFER_LEN 100
typedef struct {
BOOLEAN Ascii;
UINTN Index;
union {
CONST CHAR16 *pw;
CONST CHAR8 *pc;
} un;
} POINTER;
#define pw un.pw
#define pc un.pc
typedef struct _pitem {
POINTER Item;
CHAR16 Scratch[PRINT_ITEM_BUFFER_LEN];
UINTN Width;
UINTN FieldWidth;
UINTN *WidthParse;
CHAR16 Pad;
BOOLEAN PadBefore;
BOOLEAN Comma;
BOOLEAN Long;
} PRINT_ITEM;
typedef struct _pstate {
// Input
POINTER fmt;
va_list args;
// Output
CHAR16 *Buffer;
CHAR16 *End;
CHAR16 *Pos;
UINTN Len;
UINTN Attr;
UINTN RestoreAttr;
UINTN AttrNorm;
UINTN AttrHighlight;
UINTN AttrError;
INTN (EFIAPI *Output)(VOID *context, CHAR16 *str);
INTN (EFIAPI *SetAttr)(VOID *context, UINTN attr);
VOID *Context;
// Current item being formatted
struct _pitem *Item;
} PRINT_STATE;
//
// Internal fucntions
//
STATIC
UINTN
_Print (
IN PRINT_STATE *ps
);
STATIC
UINTN
_IPrint (
IN UINTN Column,
IN UINTN Row,
IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out,
IN CONST CHAR16 *fmt,
IN CONST CHAR8 *fmta,
IN va_list args
);
STATIC
INTN EFIAPI
_DbgOut (
IN VOID *Context,
IN CHAR16 *Buffer
);
STATIC
VOID
PFLUSH (
IN OUT PRINT_STATE *ps
);
STATIC
VOID
PPUTC (
IN OUT PRINT_STATE *ps,
IN CHAR16 c
);
STATIC
VOID
PITEM (
IN OUT PRINT_STATE *ps
);
STATIC
CHAR16
PGETC (
IN POINTER *p
);
STATIC
VOID
PSETATTR (
IN OUT PRINT_STATE *ps,
IN UINTN Attr
);
//
//
//
INTN EFIAPI
_SPrint (
IN VOID *Context,
IN CHAR16 *Buffer
);
INTN EFIAPI
_PoolPrint (
IN VOID *Context,
IN CHAR16 *Buffer
);
INTN
DbgPrint (
IN INTN mask,
IN CONST CHAR8 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to the default StandardError console
Arguments:
mask - Bit mask of debug string. If a bit is set in the
mask that is also set in EFIDebug the string is
printed; otherwise, the string is not printed
fmt - Format string
Returns:
Length of string printed to the StandardError console
--*/
{
SIMPLE_TEXT_OUTPUT_INTERFACE *DbgOut;
PRINT_STATE ps;
va_list args;
UINTN back;
UINTN attr;
UINTN SavedAttribute;
if (!(EFIDebug & mask)) {
return 0;
}
va_start (args, fmt);
ZeroMem (&ps, sizeof(ps));
ps.Output = _DbgOut;
ps.fmt.Ascii = TRUE;
ps.fmt.pc = fmt;
va_copy(ps.args, args);
ps.Attr = EFI_TEXT_ATTR(EFI_LIGHTGRAY, EFI_RED);
DbgOut = LibRuntimeDebugOut;
if (!DbgOut) {
DbgOut = ST->StdErr;
}
if (DbgOut) {
ps.Attr = DbgOut->Mode->Attribute;
ps.Context = DbgOut;
ps.SetAttr = (INTN (EFIAPI *)(VOID *, UINTN)) DbgOut->SetAttribute;
}
SavedAttribute = ps.Attr;
back = (ps.Attr >> 4) & 0xf;
ps.AttrNorm = EFI_TEXT_ATTR(EFI_LIGHTGRAY, back);
ps.AttrHighlight = EFI_TEXT_ATTR(EFI_WHITE, back);
ps.AttrError = EFI_TEXT_ATTR(EFI_YELLOW, back);
attr = ps.AttrNorm;
if (mask & D_WARN) {
attr = ps.AttrHighlight;
}
if (mask & D_ERROR) {
attr = ps.AttrError;
}
if (ps.SetAttr) {
ps.Attr = attr;
uefi_call_wrapper(ps.SetAttr, 2, ps.Context, attr);
}
_Print (&ps);
va_end (ps.args);
va_end (args);
//
// Restore original attributes
//
if (ps.SetAttr) {
uefi_call_wrapper(ps.SetAttr, 2, ps.Context, SavedAttribute);
}
return 0;
}
STATIC
INTN
IsLocalPrint(void *func)
{
if (func == _DbgOut || func == _SPrint || func == _PoolPrint)
return 1;
return 0;
}
STATIC
INTN EFIAPI
_DbgOut (
IN VOID *Context,
IN CHAR16 *Buffer
)
// Append string worker for DbgPrint
{
SIMPLE_TEXT_OUTPUT_INTERFACE *DbgOut;
DbgOut = Context;
// if (!DbgOut && ST && ST->ConOut) {
// DbgOut = ST->ConOut;
// }
if (DbgOut) {
if (IsLocalPrint(DbgOut->OutputString))
DbgOut->OutputString(DbgOut, Buffer);
else
uefi_call_wrapper(DbgOut->OutputString, 2, DbgOut, Buffer);
}
return 0;
}
INTN EFIAPI
_SPrint (
IN VOID *Context,
IN CHAR16 *Buffer
)
// Append string worker for SPrint, PoolPrint and CatPrint
{
UINTN len;
POOL_PRINT *spc;
spc = Context;
len = StrLen(Buffer);
//
// Is the string is over the max truncate it
//
if (spc->len + len > spc->maxlen) {
len = spc->maxlen - spc->len;
}
//
// Append the new text
//
CopyMem (spc->str + spc->len, Buffer, len * sizeof(CHAR16));
spc->len += len;
//
// Null terminate it
//
if (spc->len < spc->maxlen) {
spc->str[spc->len] = 0;
} else if (spc->maxlen) {
spc->str[spc->maxlen] = 0;
}
return 0;
}
INTN EFIAPI
_PoolPrint (
IN VOID *Context,
IN CHAR16 *Buffer
)
// Append string worker for PoolPrint and CatPrint
{
UINTN newlen;
POOL_PRINT *spc;
spc = Context;
newlen = spc->len + StrLen(Buffer) + 1;
//
// Is the string is over the max, grow the buffer
//
if (newlen > spc->maxlen) {
//
// Grow the pool buffer
//
newlen += PRINT_STRING_LEN;
spc->maxlen = newlen;
spc->str = ReallocatePool (
spc->str,
spc->len * sizeof(CHAR16),
spc->maxlen * sizeof(CHAR16)
);
if (!spc->str) {
spc->len = 0;
spc->maxlen = 0;
}
}
//
// Append the new text
//
return _SPrint (Context, Buffer);
}
VOID
_PoolCatPrint (
IN CONST CHAR16 *fmt,
IN va_list args,
IN OUT POOL_PRINT *spc,
IN INTN (EFIAPI *Output)(VOID *context, CHAR16 *str)
)
// Dispatch function for SPrint, PoolPrint, and CatPrint
{
PRINT_STATE ps;
ZeroMem (&ps, sizeof(ps));
ps.Output = Output;
ps.Context = spc;
ps.fmt.pw = fmt;
va_copy(ps.args, args);
_Print (&ps);
va_end(ps.args);
}
UINTN
VSPrint (
OUT CHAR16 *Str,
IN UINTN StrSize,
IN CONST CHAR16 *fmt,
va_list args
)
/*++
Routine Description:
Prints a formatted unicode string to a buffer using a va_list
Arguments:
Str - Output buffer to print the formatted string into
StrSize - Size of Str. String is truncated to this size.
A size of 0 means there is no limit
fmt - The format string
args - va_list
Returns:
String length returned in buffer
--*/
{
POOL_PRINT spc;
spc.str = Str;
spc.maxlen = StrSize / sizeof(CHAR16) - 1;
spc.len = 0;
_PoolCatPrint (fmt, args, &spc, _SPrint);
return spc.len;
}
UINTN
SPrint (
OUT CHAR16 *Str,
IN UINTN StrSize,
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to a buffer
Arguments:
Str - Output buffer to print the formatted string into
StrSize - Size of Str. String is truncated to this size.
A size of 0 means there is no limit
fmt - The format string
Returns:
String length returned in buffer
--*/
{
va_list args;
UINTN len;
va_start (args, fmt);
len = VSPrint(Str, StrSize, fmt, args);
va_end (args);
return len;
}
CHAR16 *
VPoolPrint (
IN CONST CHAR16 *fmt,
va_list args
)
/*++
Routine Description:
Prints a formatted unicode string to allocated pool using va_list argument.
The caller must free the resulting buffer.
Arguments:
fmt - The format string
args - The arguments in va_list form
Returns:
Allocated buffer with the formatted string printed in it.
The caller must free the allocated buffer. The buffer
allocation is not packed.
--*/
{
POOL_PRINT spc;
ZeroMem (&spc, sizeof(spc));
_PoolCatPrint (fmt, args, &spc, _PoolPrint);
return spc.str;
}
CHAR16 *
PoolPrint (
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to allocated pool. The caller
must free the resulting buffer.
Arguments:
fmt - The format string
Returns:
Allocated buffer with the formatted string printed in it.
The caller must free the allocated buffer. The buffer
allocation is not packed.
--*/
{
va_list args;
CHAR16 *pool;
va_start (args, fmt);
pool = VPoolPrint(fmt, args);
va_end (args);
return pool;
}
CHAR16 *
CatPrint (
IN OUT POOL_PRINT *Str,
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Concatenates a formatted unicode string to allocated pool.
The caller must free the resulting buffer.
Arguments:
Str - Tracks the allocated pool, size in use, and
amount of pool allocated.
fmt - The format string
Returns:
Allocated buffer with the formatted string printed in it.
The caller must free the allocated buffer. The buffer
allocation is not packed.
--*/
{
va_list args;
va_start (args, fmt);
_PoolCatPrint (fmt, args, Str, _PoolPrint);
va_end (args);
return Str->str;
}
UINTN
Print (
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to the default console
Arguments:
fmt - Format string
Returns:
Length of string printed to the console
--*/
{
va_list args;
UINTN back;
va_start (args, fmt);
back = _IPrint ((UINTN) -1, (UINTN) -1, ST->ConOut, fmt, NULL, args);
va_end (args);
return back;
}
UINTN
VPrint (
IN CONST CHAR16 *fmt,
va_list args
)
/*++
Routine Description:
Prints a formatted unicode string to the default console using a va_list
Arguments:
fmt - Format string
args - va_list
Returns:
Length of string printed to the console
--*/
{
return _IPrint ((UINTN) -1, (UINTN) -1, ST->ConOut, fmt, NULL, args);
}
UINTN
PrintAt (
IN UINTN Column,
IN UINTN Row,
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to the default console, at
the supplied cursor position
Arguments:
Column, Row - The cursor position to print the string at
fmt - Format string
Returns:
Length of string printed to the console
--*/
{
va_list args;
UINTN back;
va_start (args, fmt);
back = _IPrint (Column, Row, ST->ConOut, fmt, NULL, args);
va_end (args);
return back;
}
UINTN
IPrint (
IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out,
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to the specified console
Arguments:
Out - The console to print the string too
fmt - Format string
Returns:
Length of string printed to the console
--*/
{
va_list args;
UINTN back;
va_start (args, fmt);
back = _IPrint ((UINTN) -1, (UINTN) -1, Out, fmt, NULL, args);
va_end (args);
return back;
}
UINTN
IPrintAt (
IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out,
IN UINTN Column,
IN UINTN Row,
IN CONST CHAR16 *fmt,
...
)
/*++
Routine Description:
Prints a formatted unicode string to the specified console, at
the supplied cursor position
Arguments:
Out - The console to print the string to
Column, Row - The cursor position to print the string at
fmt - Format string
Returns:
Length of string printed to the console
--*/
{
va_list args;
UINTN back;
va_start (args, fmt);
back = _IPrint (Column, Row, Out, fmt, NULL, args);
va_end (args);
return back;
}
UINTN
_IPrint (
IN UINTN Column,
IN UINTN Row,
IN SIMPLE_TEXT_OUTPUT_INTERFACE *Out,
IN CONST CHAR16 *fmt,
IN CONST CHAR8 *fmta,
IN va_list args
)
// Display string worker for: Print, PrintAt, IPrint, IPrintAt
{
PRINT_STATE ps;
UINTN back;
ZeroMem (&ps, sizeof(ps));
ps.Context = Out;
ps.Output = (INTN (EFIAPI *)(VOID *, CHAR16 *)) Out->OutputString;
ps.SetAttr = (INTN (EFIAPI *)(VOID *, UINTN)) Out->SetAttribute;
ps.Attr = Out->Mode->Attribute;
back = (ps.Attr >> 4) & 0xF;
ps.AttrNorm = EFI_TEXT_ATTR(EFI_LIGHTGRAY, back);
ps.AttrHighlight = EFI_TEXT_ATTR(EFI_WHITE, back);
ps.AttrError = EFI_TEXT_ATTR(EFI_YELLOW, back);
if (fmt) {
ps.fmt.pw = fmt;
} else {
ps.fmt.Ascii = TRUE;
ps.fmt.pc = fmta;
}
va_copy(ps.args, args);
if (Column != (UINTN) -1) {
uefi_call_wrapper(Out->SetCursorPosition, 3, Out, Column, Row);
}
back = _Print (&ps);
va_end(ps.args);
return back;
}
UINTN
AsciiPrint (
IN CONST CHAR8 *fmt,
...
)
/*++
Routine Description:
For those whom really can't deal with unicode, a print
function that takes an ascii format string
Arguments:
fmt - ascii format string
Returns:
Length of string printed to the console
--*/
{
va_list args;
UINTN back;
va_start (args, fmt);
back = _IPrint ((UINTN) -1, (UINTN) -1, ST->ConOut, NULL, fmt, args);
va_end (args);
return back;
}
UINTN
AsciiVSPrint (
OUT CHAR8 *Str,
IN UINTN StrSize,
IN CONST CHAR8 *fmt,
va_list args
)
/*++
Routine Description:
Prints a formatted ascii string to a buffer using a va_list
Arguments:
Str - Output buffer to print the formatted string into
StrSize - Size of Str. String is truncated to this size.
A size of 0 means there is no limit
fmt - The format string
args - va_list
Returns:
String length returned in buffer
--*/
// Use Unicode VSPrint() and convert back to ASCII
{
CHAR16 *UnicodeStr, *UnicodeFmt;
UINTN i, Len;
UnicodeStr = AllocatePool(StrSize * sizeof(CHAR16));
if (!UnicodeStr)
return 0;
UnicodeFmt = PoolPrint(L"%a", fmt);
if (!UnicodeFmt) {
FreePool(UnicodeStr);
return 0;
}
Len = VSPrint(UnicodeStr, StrSize, UnicodeFmt, args);
FreePool(UnicodeFmt);
// The strings are ASCII so just do a plain Unicode conversion
for (i = 0; i < Len; i++)
Str[i] = (CHAR8)UnicodeStr[i];
Str[Len] = 0;
FreePool(UnicodeStr);
return Len;
}
STATIC
VOID
PFLUSH (
IN OUT PRINT_STATE *ps
)
{
*ps->Pos = 0;
if (IsLocalPrint(ps->Output))
ps->Output(ps->Context, ps->Buffer);
else
uefi_call_wrapper(ps->Output, 2, ps->Context, ps->Buffer);
ps->Pos = ps->Buffer;
}
STATIC
VOID
PSETATTR (
IN OUT PRINT_STATE *ps,
IN UINTN Attr
)
{
PFLUSH (ps);
ps->RestoreAttr = ps->Attr;
if (ps->SetAttr) {
uefi_call_wrapper(ps->SetAttr, 2, ps->Context, Attr);
}
ps->Attr = Attr;
}
STATIC
VOID
PPUTC (
IN OUT PRINT_STATE *ps,
IN CHAR16 c
)
{
// if this is a newline, add a carraige return
if (c == '\n') {
PPUTC (ps, '\r');
}
*ps->Pos = c;
ps->Pos += 1;
ps->Len += 1;
// if at the end of the buffer, flush it
if (ps->Pos >= ps->End) {
PFLUSH(ps);
}
}
STATIC
CHAR16
PGETC (
IN POINTER *p
)
{
CHAR16 c;
c = p->Ascii ? p->pc[p->Index] : p->pw[p->Index];
p->Index += 1;
return c;
}
STATIC
VOID
PITEM (
IN OUT PRINT_STATE *ps
)
{
UINTN Len, i;
PRINT_ITEM *Item;
CHAR16 c;
// Get the length of the item
Item = ps->Item;
Item->Item.Index = 0;
while (Item->Item.Index < Item->FieldWidth) {
c = PGETC(&Item->Item);
if (!c) {
Item->Item.Index -= 1;
break;
}
}
Len = Item->Item.Index;
// if there is no item field width, use the items width
if (Item->FieldWidth == (UINTN) -1) {
Item->FieldWidth = Len;
}
// if item is larger then width, update width
if (Len > Item->Width) {
Item->Width = Len;
}
// if pad field before, add pad char
if (Item->PadBefore) {
for (i=Item->Width; i < Item->FieldWidth; i+=1) {
PPUTC (ps, ' ');
}
}
// pad item
for (i=Len; i < Item->Width; i++) {
PPUTC (ps, Item->Pad);
}
// add the item
Item->Item.Index=0;
while (Item->Item.Index < Len) {
PPUTC (ps, PGETC(&Item->Item));
}
// If pad at the end, add pad char
if (!Item->PadBefore) {
for (i=Item->Width; i < Item->FieldWidth; i+=1) {
PPUTC (ps, ' ');
}
}
}
STATIC
UINTN
_Print (
IN PRINT_STATE *ps
)
/*++
Routine Description:
%w.lF - w = width
l = field width
F = format of arg
Args F:
0 - pad with zeros
- - justify on left (default is on right)
, - add comma's to field
* - width provided on stack
n - Set output attribute to normal (for this field only)
h - Set output attribute to highlight (for this field only)
e - Set output attribute to error (for this field only)
l - Value is 64 bits
a - ascii string
s - unicode string
X - fixed 8 byte value in hex
x - hex value
d - value as signed decimal
u - value as unsigned decimal
f - value as floating point
c - Unicode char
t - EFI time structure
g - Pointer to GUID
r - EFI status code (result code)
D - pointer to Device Path with normal ending.
N - Set output attribute to normal
H - Set output attribute to highlight
E - Set output attribute to error
% - Print a %
Arguments:
SystemTable - The system table
Returns:
Number of charactors written
--*/
{
CHAR16 c;
UINTN Attr;
PRINT_ITEM Item;
CHAR16 Buffer[PRINT_STRING_LEN];
ps->Len = 0;
ps->Buffer = Buffer;
ps->Pos = Buffer;
ps->End = Buffer + PRINT_STRING_LEN - 1;
ps->Item = &Item;
ps->fmt.Index = 0;
while ((c = PGETC(&ps->fmt))) {
if (c != '%') {
PPUTC ( ps, c );
continue;
}
// setup for new item
Item.FieldWidth = (UINTN) -1;
Item.Width = 0;
Item.WidthParse = &Item.Width;
Item.Pad = ' ';
Item.PadBefore = TRUE;
Item.Comma = FALSE;
Item.Long = FALSE;
Item.Item.Ascii = FALSE;
Item.Item.pw = NULL;
ps->RestoreAttr = 0;
Attr = 0;
while ((c = PGETC(&ps->fmt))) {
switch (c) {
case '%':
//
// %% -> %
//
Item.Scratch[0] = '%';
Item.Scratch[1] = 0;
Item.Item.pw = Item.Scratch;
break;
case '0':
Item.Pad = '0';
break;
case '-':
Item.PadBefore = FALSE;
break;
case ',':
Item.Comma = TRUE;
break;
case '.':
Item.WidthParse = &Item.FieldWidth;
break;
case '*':
*Item.WidthParse = va_arg(ps->args, UINTN);
break;
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
*Item.WidthParse = 0;
do {
*Item.WidthParse = *Item.WidthParse * 10 + c - '0';
c = PGETC(&ps->fmt);
} while (c >= '0' && c <= '9') ;
ps->fmt.Index -= 1;
break;
case 'a':
Item.Item.pc = va_arg(ps->args, CHAR8 *);
Item.Item.Ascii = TRUE;
if (!Item.Item.pc) {
Item.Item.pc = (CHAR8 *)"(null)";
}
break;
case 's':
Item.Item.pw = va_arg(ps->args, CHAR16 *);
if (!Item.Item.pw) {
Item.Item.pw = L"(null)";
}
break;
case 'c':
Item.Scratch[0] = (CHAR16) va_arg(ps->args, UINTN);
Item.Scratch[1] = 0;
Item.Item.pw = Item.Scratch;
break;
case 'l':
Item.Long = TRUE;
break;
case 'X':
Item.Width = Item.Long ? 16 : 8;
Item.Pad = '0';
#if __GNUC__ >= 7
__attribute__ ((fallthrough));
#endif
case 'x':
ValueToHex (
Item.Scratch,
Item.Long ? va_arg(ps->args, UINT64) : va_arg(ps->args, UINT32)
);
Item.Item.pw = Item.Scratch;
break;
case 'g':
GuidToString (Item.Scratch, va_arg(ps->args, EFI_GUID *));
Item.Item.pw = Item.Scratch;
break;
case 'u':
ValueToString (
Item.Scratch,
Item.Comma,
Item.Long ? va_arg(ps->args, UINT64) : va_arg(ps->args, UINT32)
);
Item.Item.pw = Item.Scratch;
break;
case 'd':
ValueToString (
Item.Scratch,
Item.Comma,
Item.Long ? va_arg(ps->args, INT64) : va_arg(ps->args, INT32)
);
Item.Item.pw = Item.Scratch;
break;
case 'D':
{
EFI_DEVICE_PATH *dp = va_arg(ps->args, EFI_DEVICE_PATH *);
CHAR16 *dpstr = DevicePathToStr(dp);
StrnCpy(Item.Scratch, dpstr, PRINT_ITEM_BUFFER_LEN);
Item.Scratch[PRINT_ITEM_BUFFER_LEN-1] = L'\0';
FreePool(dpstr);
Item.Item.pw = Item.Scratch;
break;
}
case 'f':
FloatToString (
Item.Scratch,
Item.Comma,
va_arg(ps->args, double)
);
Item.Item.pw = Item.Scratch;
break;
case 't':
TimeToString (Item.Scratch, va_arg(ps->args, EFI_TIME *));
Item.Item.pw = Item.Scratch;
break;
case 'r':
StatusToString (Item.Scratch, va_arg(ps->args, EFI_STATUS));
Item.Item.pw = Item.Scratch;
break;
case 'n':
PSETATTR(ps, ps->AttrNorm);
break;
case 'h':
PSETATTR(ps, ps->AttrHighlight);
break;
case 'e':
PSETATTR(ps, ps->AttrError);
break;
case 'N':
Attr = ps->AttrNorm;
break;
case 'H':
Attr = ps->AttrHighlight;
break;
case 'E':
Attr = ps->AttrError;
break;
default:
Item.Scratch[0] = '?';
Item.Scratch[1] = 0;
Item.Item.pw = Item.Scratch;
break;
}
// if we have an Item
if (Item.Item.pw) {
PITEM (ps);
break;
}
// if we have an Attr set
if (Attr) {
PSETATTR(ps, Attr);
ps->RestoreAttr = 0;
break;
}
}
if (ps->RestoreAttr) {
PSETATTR(ps, ps->RestoreAttr);
}
}
// Flush buffer
PFLUSH (ps);
return ps->Len;
}
STATIC CHAR8 Hex[] = {'0','1','2','3','4','5','6','7',
'8','9','A','B','C','D','E','F'};
VOID
ValueToHex (
IN CHAR16 *Buffer,
IN UINT64 v
)
{
CHAR8 str[30], *p1;
CHAR16 *p2;
if (!v) {
Buffer[0] = '0';
Buffer[1] = 0;
return ;
}
p1 = str;
p2 = Buffer;
while (v) {
// Without the cast, the MSVC compiler may insert a reference to __allmull
*(p1++) = Hex[(UINTN)(v & 0xf)];
v = RShiftU64 (v, 4);
}
while (p1 != str) {
*(p2++) = *(--p1);
}
*p2 = 0;
}
VOID
ValueToString (
IN CHAR16 *Buffer,
IN BOOLEAN Comma,
IN INT64 v
)
{
STATIC CHAR8 ca[] = { 3, 1, 2 };
CHAR8 str[40], *p1;
CHAR16 *p2;
UINTN c, r;
if (!v) {
Buffer[0] = '0';
Buffer[1] = 0;
return ;
}
p1 = str;
p2 = Buffer;
if (v < 0) {
*(p2++) = '-';
v = -v;
}
while (v) {
v = (INT64)DivU64x32 ((UINT64)v, 10, &r);
*(p1++) = (CHAR8)r + '0';
}
c = (Comma ? ca[(p1 - str) % 3] : 999) + 1;
while (p1 != str) {
c -= 1;
if (!c) {
*(p2++) = ',';
c = 3;
}
*(p2++) = *(--p1);
}
*p2 = 0;
}
VOID
FloatToString (
IN CHAR16 *Buffer,
IN BOOLEAN Comma,
IN double v
)
{
/*
* Integer part.
*/
INTN i = (INTN)v;
ValueToString(Buffer, Comma, i);
/*
* Decimal point.
*/
UINTN x = StrLen(Buffer);
Buffer[x] = L'.';
x++;
/*
* Keep fractional part.
*/
float f = (float)(v - i);
if (f < 0) f = -f;
/*
* Leading fractional zeroes.
*/
f *= 10.0;
while ( (f != 0)
&& ((INTN)f == 0))
{
Buffer[x] = L'0';
x++;
f *= 10.0;
}
/*
* Fractional digits.
*/
while ((float)(INTN)f != f)
{
f *= 10;
}
ValueToString(Buffer + x, FALSE, (INTN)f);
return;
}
VOID
TimeToString (
OUT CHAR16 *Buffer,
IN EFI_TIME *Time
)
{
UINTN Hour, Year;
CHAR16 AmPm;
AmPm = 'a';
Hour = Time->Hour;
if (Time->Hour == 0) {
Hour = 12;
} else if (Time->Hour >= 12) {
AmPm = 'p';
if (Time->Hour >= 13) {
Hour -= 12;
}
}
Year = Time->Year % 100;
// bugbug: for now just print it any old way
SPrint (Buffer, 0, L"%02d/%02d/%02d %02d:%02d%c",
Time->Month,
Time->Day,
Year,
Hour,
Time->Minute,
AmPm
);
}
VOID
DumpHex (
IN UINTN Indent,
IN UINTN Offset,
IN UINTN DataSize,
IN VOID *UserData
)
{
CHAR8 *Data, Val[50], Str[20], c;
UINTN Size, Index;
UINTN ScreenCount;
UINTN TempColumn;
UINTN ScreenSize;
CHAR16 ReturnStr[1];
uefi_call_wrapper(ST->ConOut->QueryMode, 4, ST->ConOut, ST->ConOut->Mode->Mode, &TempColumn, &ScreenSize);
ScreenCount = 0;
ScreenSize -= 2;
Data = UserData;
while (DataSize) {
Size = 16;
if (Size > DataSize) {
Size = DataSize;
}
for (Index=0; Index < Size; Index += 1) {
c = Data[Index];
Val[Index*3+0] = Hex[c>>4];
Val[Index*3+1] = Hex[c&0xF];
Val[Index*3+2] = (Index == 7)?'-':' ';
Str[Index] = (c < ' ' || c > 'z') ? '.' : c;
}
Val[Index*3] = 0;
Str[Index] = 0;
Print (L"%*a%X: %-.48a *%a*\n", Indent, "", Offset, Val, Str);
Data += Size;
Offset += Size;
DataSize -= Size;
ScreenCount++;
if (ScreenCount >= ScreenSize && ScreenSize != 0) {
//
// If ScreenSize == 0 we have the console redirected so don't
// block updates
//
ScreenCount = 0;
Print (L"Press Enter to continue :");
Input (L"", ReturnStr, sizeof(ReturnStr)/sizeof(CHAR16));
Print (L"\n");
}
}
}
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