diff options
Diffstat (limited to 'StdLib/LibC/Uefi/InteractiveIO/IIO.c')
| -rw-r--r-- | StdLib/LibC/Uefi/InteractiveIO/IIO.c | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/StdLib/LibC/Uefi/InteractiveIO/IIO.c b/StdLib/LibC/Uefi/InteractiveIO/IIO.c deleted file mode 100644 index 65b61d9bcc..0000000000 --- a/StdLib/LibC/Uefi/InteractiveIO/IIO.c +++ /dev/null @@ -1,373 +0,0 @@ -/** @file
- Definitions for the Interactive IO library.
-
- The functions assume that isatty() is TRUE at the time they are called.
-
- Copyright (c) 2012, 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 <Library/MemoryAllocationLib.h>
-
-#include <LibConfig.h>
-
-#include <assert.h>
-#include <errno.h>
-#include <sys/syslimits.h>
-#include <sys/termios.h>
-#include <Device/IIO.h>
-#include <MainData.h>
-#include "IIOutilities.h"
-#include "IIOechoCtrl.h"
-
-/** Read from an Interactive IO device.
-
- NOTE: If _S_IWTTY is set, the internal buffer contains WIDE characters.
- They will need to be converted to MBCS when returned.
-
- Input is line buffered if ICANON is set,
- otherwise MIN determines how many characters to input.
- Currently MIN is always zero, meaning 0 or 1 character is input in
- noncanonical mode.
-
- @param[in] filp Pointer to the descriptor of the device (file) to be read.
- @param[in] BufferSize Maximum number of bytes to be returned to the caller.
- @param[out] Buffer Pointer to the buffer where the input is to be stored.
-
- @retval -1 An error occurred. No data is available.
- @retval 0 No data was available. Try again later.
- @retval >0 The number of bytes consumed by the returned data.
-**/
-static
-ssize_t
-EFIAPI
-IIO_Read(
- struct __filedes *filp,
- size_t BufferSize,
- VOID *Buffer
- )
-{
- cIIO *This;
- ssize_t NumRead;
- tcflag_t Flags;
- size_t XlateSz;
- size_t Needed;
-
- NumRead = -1;
- This = filp->devdata;
- if(This != NULL) {
- Flags = This->Termio.c_lflag;
- if(Flags & ICANON) {
- NumRead = IIO_CanonRead(filp);
- }
- else {
- NumRead = IIO_NonCanonRead(filp);
- }
- // At this point, the input has been accumulated in the input buffer.
- if(filp->f_iflags & _S_IWTTY) {
- // Data in InBuf is wide characters. Convert to MBCS
- // First, convert into a linear buffer
- NumRead = This->InBuf->Copy(This->InBuf, gMD->UString2, (INT32)UNICODE_STRING_MAX-1);
- gMD->UString2[NumRead] = 0; // Ensure that the buffer is terminated
- // Determine the needed space
- XlateSz = EstimateWtoM((const wchar_t *)gMD->UString2, BufferSize, &Needed);
-
- // Now translate this into MBCS in Buffer
- NumRead = wcstombs((char *)Buffer, (const wchar_t *)gMD->UString2, XlateSz);
-
- // Consume the translated characters
- (void)This->InBuf->Flush(This->InBuf, Needed);
- }
- else {
- // Data in InBuf is narrow characters. Use verbatim.
- NumRead = This->InBuf->Read(This->InBuf, Buffer, (INT32)BufferSize);
- }
- }
- return NumRead;
-}
-
-/** Process characters from buffer buf and write them to the output device
- specified by filp.
-
- @param[in] filp Pointer to a file descriptor structure.
- @param[in] buf Pointer to the MBCS string to be output.
- @param[in] N Number of bytes in buf.
-
- @retval >=0 Number of bytes sent to the output device.
-**/
-static
-ssize_t
-EFIAPI
-IIO_Write(
- struct __filedes *filp,
- const char *buf,
- ssize_t N
- )
-{
- cIIO *This;
- cFIFO *OutBuf;
- mbstate_t *OutState;
- char *MbcsPtr;
- ssize_t NumWritten;
- ssize_t NumProc;
- size_t CharLen;
- UINTN MaxColumn;
- UINTN MaxRow;
- wchar_t OutChar[2]; // Just in case we run into 4-byte MBCS character
- int OutMode;
-
- errno = 0; // indicate no error as default
- NumWritten = -1;
-
- /* Determine what the current screen size is. Also validates the output device. */
- OutMode = IIO_GetOutputSize(filp->MyFD, &MaxColumn, &MaxRow);
-
- This = filp->devdata;
- if((This != NULL) && (OutMode >= 0)) {
- if(filp->MyFD == STDERR_FILENO) {
- OutBuf = This->ErrBuf;
- OutState = &This->ErrState;
- }
- else {
- OutBuf = This->OutBuf;
- OutState = &This->OutState;
- }
-
- /* Set the maximum screen dimensions. */
- This->MaxColumn = MaxColumn;
- This->MaxRow = MaxRow;
-
- /* Record where the cursor is at the beginning of the Output operation. */
- (void)IIO_GetCursorPosition(filp->MyFD, &This->InitialXY.Column, &This->InitialXY.Row);
- This->CurrentXY.Column = This->InitialXY.Column;
- This->CurrentXY.Row = This->InitialXY.Row;
-
-
- NumWritten = 0;
- OutChar[0] = (wchar_t)buf[0];
- while((OutChar[0] != 0) && (NumWritten < N)) {
- CharLen = mbrtowc(OutChar, (const char *)&buf[NumWritten], MB_CUR_MAX, OutState);
- NumProc = IIO_WriteOne(filp, OutBuf, OutChar[0]);
- if(NumProc > 0) {
- // Successfully processed and buffered one character
- NumWritten += CharLen; // Index of start of next character
- }
- else if(NumProc == -1) {
- // Encoding Error
- (void)mbrtowc(NULL, NULL, 1, OutState); // Re-Initialize the conversion state
- errno = EILSEQ;
- break;
- }
- else {
- // Last character was incomplete
- break;
- }
- }
- // At this point, the characters to write are in OutBuf
- // First, linearize the buffer
- NumWritten = OutBuf->Copy(OutBuf, gMD->UString, UNICODE_STRING_MAX-1);
- gMD->UString[NumWritten] = 0; // Ensure that the buffer is terminated
-
- if(filp->f_iflags & _S_IWTTY) {
- // Output device expects wide characters, Output what we have
- NumWritten = filp->f_ops->fo_write(filp, NULL, NumWritten, gMD->UString);
- }
- else {
- // Output device expects narrow characters, convert to MBCS
- MbcsPtr = (char *)gMD->UString2;
- // Determine the needed space
- NumProc = (ssize_t)EstimateWtoM((const wchar_t *)gMD->UString, UNICODE_STRING_MAX * sizeof(wchar_t), &CharLen);
-
- // Now translate this into MBCS in Buffer
- NumWritten = wcstombs(MbcsPtr, (const wchar_t *)gMD->UString, NumProc);
- MbcsPtr[NumWritten] = 0; // Ensure the buffer is terminated
-
- // Send the MBCS buffer to Output
- NumWritten = filp->f_ops->fo_write(filp, NULL, NumWritten, MbcsPtr);
- }
- // Consume the translated characters
- (void)OutBuf->Flush(OutBuf, NumWritten);
- }
- else {
- if(This == NULL) {
- errno = EINVAL;
- }
- // Otherwise, errno is already set.
- }
- return NumWritten;
-}
-
-/** Echo a character to an output device.
- Performs translation and edit processing depending upon termios flags.
-
- @param[in] filp A pointer to a file descriptor structure.
- @param[in] EChar The character to echo.
- @param[in] EchoIsOK TRUE if the caller has determined that characters
- should be echoed. Otherwise, just buffer.
-
- @return Returns the number of characters actually output.
-**/
-static
-ssize_t
-EFIAPI
-IIO_Echo(
- struct __filedes *filp,
- wchar_t EChar,
- BOOLEAN EchoIsOK
- )
-{
- cIIO *This;
- ssize_t NumWritten;
- cFIFO *OutBuf;
- char *MbcsPtr;
- ssize_t NumProc;
- tcflag_t LFlags;
-
- NumWritten = -1;
- This = filp->devdata;
- if(This != NULL) {
- OutBuf = This->OutBuf;
- LFlags = This->Termio.c_lflag & (ECHOK | ECHOE);
-
- if((EChar >= TtyFunKeyMin) && (EChar < TtyFunKeyMax)) {
- // A special function key was pressed, buffer it, don't echo, and activate.
- // Process and buffer the character. May produce multiple characters.
- NumProc = IIO_EchoOne(filp, EChar, FALSE); // Don't echo this character
- EChar = CHAR_LINEFEED; // Every line must end with '\n' (legacy)
- }
- // Process and buffer the character. May produce multiple characters.
- NumProc = IIO_EchoOne(filp, EChar, EchoIsOK);
-
- // At this point, the character(s) to write are in OutBuf
- // First, linearize the buffer
- NumWritten = OutBuf->Copy(OutBuf, gMD->UString, UNICODE_STRING_MAX-1);
- gMD->UString[NumWritten] = 0; // Ensure that the buffer is terminated
-
- if((EChar == IIO_ECHO_KILL) && (LFlags & ECHOE) && EchoIsOK) {
- // Position the cursor to the start of input.
- (void)IIO_SetCursorPosition(filp, &This->InitialXY);
- }
- // Output the buffer
- if(filp->f_iflags & _S_IWTTY) {
- // Output device expects wide characters, Output what we have
- NumWritten = filp->f_ops->fo_write(filp, NULL, NumWritten, gMD->UString);
- }
- else {
- // Output device expects narrow characters, convert to MBCS
- MbcsPtr = (char *)gMD->UString2;
- // Determine the needed space
- NumProc = (ssize_t)EstimateWtoM((const wchar_t *)gMD->UString, UNICODE_STRING_MAX * sizeof(wchar_t), NULL);
-
- // Now translate this into MBCS in Buffer
- NumWritten = wcstombs(MbcsPtr, (const wchar_t *)gMD->UString, NumProc);
- MbcsPtr[NumWritten] = 0; // Ensure the buffer is terminated
-
- // Send the MBCS buffer to Output
- NumWritten = filp->f_ops->fo_write(filp, NULL, NumWritten, MbcsPtr);
- }
- // Consume the echoed characters
- (void)OutBuf->Flush(OutBuf, NumWritten);
-
- if(EChar == IIO_ECHO_KILL) {
- if(LFlags == ECHOK) {
- NumWritten = IIO_WriteOne(filp, OutBuf, CHAR_LINEFEED);
- }
- else if((LFlags & ECHOE) && EchoIsOK) {
- // Position the cursor to the start of input.
- (void)IIO_SetCursorPosition(filp, &This->InitialXY);
- }
- NumWritten = 0;
- }
- }
- else {
- errno = EINVAL;
- }
-
- return NumWritten;
-}
-
-static
-void
-FifoDelete(cFIFO *Member)
-{
- if(Member != NULL) {
- Member->Delete(Member);
- }
-}
-
-/** Destructor for an IIO instance.
-
- Releases all resources used by a particular IIO instance.
-**/
-static
-void
-EFIAPI
-IIO_Delete(
- cIIO *Self
- )
-{
- if(Self != NULL) {
- FifoDelete(Self->ErrBuf);
- FifoDelete(Self->OutBuf);
- FifoDelete(Self->InBuf);
- if(Self->AttrBuf != NULL) {
- FreePool(Self->AttrBuf);
- }
- FreePool(Self);
- }
-}
-
-/** Constructor for new IIO instances.
-
- @return Returns NULL or a pointer to a new IIO instance.
-**/
-cIIO *
-EFIAPI
-New_cIIO(void)
-{
- cIIO *IIO;
- cc_t *TempBuf;
- int i;
-
- IIO = (cIIO *)AllocateZeroPool(sizeof(cIIO));
- if(IIO != NULL) {
- IIO->InBuf = New_cFIFO(MAX_INPUT, sizeof(wchar_t));
- IIO->OutBuf = New_cFIFO(MAX_OUTPUT, sizeof(wchar_t));
- IIO->ErrBuf = New_cFIFO(MAX_OUTPUT, sizeof(wchar_t));
- IIO->AttrBuf = (UINT8 *)AllocateZeroPool(MAX_OUTPUT);
-
- if((IIO->InBuf == NULL) || (IIO->OutBuf == NULL) ||
- (IIO->ErrBuf == NULL) || (IIO->AttrBuf == NULL))
- {
- IIO_Delete(IIO);
- IIO = NULL;
- }
- else {
- IIO->Delete = IIO_Delete;
- IIO->Read = IIO_Read;
- IIO->Write = IIO_Write;
- IIO->Echo = IIO_Echo;
- }
- // Initialize Termio member
- TempBuf = &IIO->Termio.c_cc[0];
- TempBuf[0] = 8; // Default length for TABs
- for(i=1; i < NCCS; ++i) {
- TempBuf[i] = _POSIX_VDISABLE;
- }
- TempBuf[VMIN] = 0;
- TempBuf[VTIME] = 0;
- IIO->Termio.c_ispeed = B115200;
- IIO->Termio.c_ospeed = B115200;
- IIO->Termio.c_iflag = ICRNL;
- IIO->Termio.c_oflag = OPOST | ONLCR | ONOCR | ONLRET;
- IIO->Termio.c_cflag = 0;
- IIO->Termio.c_lflag = ECHO | ECHONL;
- }
- return IIO;
-}
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