diff options
Diffstat (limited to 'StdLib/LibC/Uefi/InteractiveIO/IIOwrite.c')
| -rw-r--r-- | StdLib/LibC/Uefi/InteractiveIO/IIOwrite.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/StdLib/LibC/Uefi/InteractiveIO/IIOwrite.c b/StdLib/LibC/Uefi/InteractiveIO/IIOwrite.c deleted file mode 100644 index ef52cc890e..0000000000 --- a/StdLib/LibC/Uefi/InteractiveIO/IIOwrite.c +++ /dev/null @@ -1,207 +0,0 @@ -/** @file
- Write to an Interactive I/O Output device.
-
- The functions assume that isatty() is TRUE at the time they are called.
- Since the UEFI console is a WIDE character device, these functions do all
- processing using wide characters.
-
- It is the responsibility of the caller, or higher level function, to perform
- any necessary translation between wide and narrow characters.
-
- Copyright (c) 2012 - 2014, 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 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.
-**/
-#include <Uefi.h>
-
-#include <LibConfig.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <sys/termios.h>
-#include <Device/IIO.h>
-
-static wchar_t Spaces[] = L" "; // Spaces for expanding TABs
-
-#define MAX_TAB_WIDTH ((int)(sizeof(Spaces) / sizeof(wchar_t)) - 1)
-
-#define MAX_EXPANSION 3
-
-/** Process and buffer one character for output.
-
- @param[in] filp Pointer to a file descriptor structure.
- @param[out] OBuf Pointer to the Output Buffer FIFO.
- @param[in] InCh The wide character to process.
-
- @retval <0 An error occurred. Reason is in errno.
- * EINVAL The pointer to the IIO object is NULL.
- * ENOSPC The OBuf FIFO is full.
-
- @retval 0 A character was input but not placed in the output buffer.
-
- @retval >0 The number of characters buffered. Normally 1, or 2.
- If a character is discarded because of flag settings, a
- 1 will be returned.
-**/
-ssize_t
-IIO_WriteOne(struct __filedes *filp, cFIFO *OBuf, wchar_t InCh)
-{
- cIIO *This;
- struct termios *Termio;
- tcflag_t OFlag;
- ssize_t RetVal;
- wchar_t wc[MAX_EXPANSION]; // Sub-buffer for conversions
- wchar_t *wcb; // Pointer to either wc or spaces
- int numW = 0; // Wide characters placed in OBuf
- INT32 TabWidth; // Each TAB expands into this number of spaces
- UINT32 CurColumn; // Current cursor column on the screen
- UINT32 CurRow; // Current cursor row on the screen
- UINT32 PrevColumn; // Previous column. Used to detect wrapping.
- UINT32 AdjColumn; // Current cursor column on the screen
-
- RetVal = -1;
- wcb = wc;
- This = filp->devdata;
- if((This != NULL) && (OBuf->FreeSpace(OBuf, AsElements) >= MAX_EXPANSION)) {
- Termio = &This->Termio;
- OFlag = Termio->c_oflag;
- TabWidth = (INT32)This->Termio.c_cc[VTABLEN];
- if(TabWidth > MAX_TAB_WIDTH) {
- TabWidth = MAX_TAB_WIDTH;
- }
- CurColumn = This->CurrentXY.Column;
- CurRow = This->CurrentXY.Row;
-
- numW = 1; // The majority of characters buffer one character
- AdjColumn = 0;
- if(OFlag & OPOST) {
- /* Perform output processing */
- switch(InCh) {
- case CHAR_TAB: //{{
- if(OFlag & OXTABS) {
- if(TabWidth > 0) {
- int SpaceIndex;
-
- SpaceIndex = CurColumn % TabWidth; // Number of spaces after a Tab Stop
- numW = TabWidth - SpaceIndex; // Number of spaces to the next Tab Stop
- SpaceIndex = MAX_TAB_WIDTH - numW; // Index into the Spaces array
- wcb = &Spaces[SpaceIndex]; // Point to the appropriate number of spaces
- }
- else {
- wc[0] = L' ';
- }
- AdjColumn = numW;
- }
- else {
- wc[0] = InCh; // Send the TAB itself - assumes that it does not move cursor.
- }
- break; //}}
-
- case CHAR_CARRIAGE_RETURN: //{{
- if((OFlag & OCRNL) == 0) {
- if((OFlag & ONLRET) == 0) {
- numW = 0; /* Discard the CR */
- // Cursor doesn't move
- }
- else {
- wc[0] = CHAR_CARRIAGE_RETURN;
- CurColumn = 0;
- }
- break;
- }
- else {
- InCh = CHAR_LINEFEED;
- } //}}
- // Fall through to the NL case
- case CHAR_LINEFEED: //{{
- if(OFlag & ONLCR) {
- wc[0] = CHAR_CARRIAGE_RETURN;
- wc[1] = CHAR_LINEFEED;
- numW = 2;
- CurColumn = 0;
- }
- break; //}}
-
- case CHAR_BACKSPACE: //{{
- if(CurColumn > 0) {
- wc[0] = CHAR_BACKSPACE;
- CurColumn = (UINT32)ModuloDecrement(CurColumn, (UINT32)This->MaxColumn);
- }
- else {
- numW = 0; // Discard the backspace if in column 0
- }
- break; //}}
-
- case CHAR_EOT: //{{
- if(OFlag & ONOEOT) {
- numW = 0; // Discard the EOT character
- // Cursor doesn't move
- break;
- } //}}
- // Fall through to default in order to potentially output "^D"
- default: //{{
- if((InCh >= 0) && (InCh < L' ')) {
- // InCh contains a control character
- if(OFlag & OCTRL) {
- wc[1] = InCh + L'@';
- wc[0] = L'^';
- numW = 2;
- AdjColumn = 2;
- }
- else {
- numW = 0; // Discard. Not a UEFI supported control character.
- }
- }
- else {
- // Regular printing character
- wc[0] = InCh;
- AdjColumn = 1;
- }
- break; //}}
- }
- if(numW < MAX_EXPANSION) {
- wc[numW] = 0; // Terminate the sub-buffer
- }
- if(AdjColumn != 0) {
- // Adjust the cursor position
- PrevColumn = CurColumn;
- CurColumn = ModuloAdd(PrevColumn, AdjColumn, (UINT32)This->MaxColumn);
- if(CurColumn < PrevColumn) {
- // We must have wrapped, so we are on the next Row
- ++CurRow;
- if(CurRow >= This->MaxRow) {
- // The screen has scrolled so need to adjust Initial location.
- --This->InitialXY.Row; // Initial row has moved up one
- CurRow = (UINT32)(This->MaxRow - 1); // We stay on the bottom row
- }
- }
- }
- This->CurrentXY.Column = CurColumn;
- This->CurrentXY.Row = CurRow;
- }
- else {
- // Output processing disabled -- RAW output mode
- wc[0] = InCh;
- wc[1] = 0;
- }
- // Put the character(s) into the output buffer
- if(numW > 0) {
- (void)OBuf->Write(OBuf, (const void *)wcb, (size_t)numW);
- }
- RetVal = numW;
- }
- else {
- if(This == NULL) {
- errno = EINVAL;
- }
- else {
- errno = ENOSPC;
- }
- }
- return RetVal;
-}
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