static int uart_write(struct bathos_pipe *pipe, const char *buf, int len)
{
int i;
for (i = 0; i < len; i++)
__uart_putc(buf[i]);
return len;
}
/* -------------------------------------------------------------------------- */
ssize_t
_read_r (struct _reent *reent,
int file,
void *b,
size_t len)
{
char *buf = (char*) b;
if (STDIN_FILENO == file)
{
if (BOARD_HAS_UART)
{
/* UART supported. Read from it */
int i;
for (i = 0; i < len; i++)
{
buf[i] = __uart_getc ();
#ifdef UART_AUTO_ECHO
__uart_putc (buf[i]);
#endif
/* Return partial buffer if we get EOL */
if ('\n' == buf[i])
{
return i;
}
}
return i; /* Filled the buffer */
}
else
{
return 0; /* EOF */
}
}
else
{
reent->_errno = EBADF;
return -1;
}
} /* _read () */