/*----------------------------------------------------------------------------
Line Editor
*----------------------------------------------------------------------------*/
void getline (char *line, int n) {
int cnt = 0;
char c;
do {
if ((c = SER_GetChar()) == CR) c = LF; /* read character */
if (c == BACKSPACE || c == DEL) { /* process backspace */
if (cnt != 0) {
cnt--; /* decrement count */
line--; /* and line pointer */
putchar (BACKSPACE); /* echo backspace */
putchar (' ');
putchar (BACKSPACE);
}
}
else if (c != CNTLQ && c != CNTLS) { /* ignore Control S/Q */
putchar (*line = c); /* echo and store character */
line++; /* increment line pointer */
cnt++; /* and count */
}
#ifdef __USE_FFLUSH
fflush (stdout);
#endif
} while (cnt < n - 1 && c != LF); /* check limit and line feed */
*(line - 1) = 0; /* mark end of string */
}
/*----------------------------------------------------------------------------
Thread 5 'get_escape': check if ESC (escape character) was entered
*---------------------------------------------------------------------------*/
void get_escape (void const *argument) {
while (1) { /* endless loop */
if (SER_GetChar () == ESC) { /* If ESC entered, set flag */
escape = true; /* 'escape', set event flag of */
osSignalSet(tid_command, 0x0002); /* thread 'command' */
}
}
}
/*-----------------------------------------------------------------------------
Read character from the Serial Port
*----------------------------------------------------------------------------*/
int getkey (void)
{
int ch = SER_GetChar();
#if defined (HAVE_KEIL_RTX)
os_itv_wait ();
#endif
if (ch < 0) {
return 0;
}
return ch;
}
int _read (int file, char * ptr, int len) {
char c;
int i;
for (i = 0; i < len; i++) {
c = SER_GetChar();
if (c == '\r') break;
*ptr++ = c;
SER_PutChar(c);
}
return (len - i);
}
size_t __read(int handle, unsigned char *buf, size_t size) {
size_t nChars = 0;
int c;
/* This template only reads from "standard in", for all other file
* handles it returns failure. */
if (handle != _LLIO_STDIN) {
return _LLIO_ERROR;
}
for (/* Empty */; size > 0; --size) {
c = SER_GetChar();
if (c == '\r') break;
*buf++ = c;
++nChars;
}
return nChars;
}
int fgetc(FILE *f) {
return (SER_GetChar());
}
/*-----------------------------------------------------------------------------
Read character from the Serial Port
*----------------------------------------------------------------------------*/
int getkey (void) {
return (SER_GetChar ());
}
int fgetc(FILE *f) {
//return (getkey());
return (SER_GetChar());
}