815 lines
18 KiB
C
815 lines
18 KiB
C
/****************************************************************************
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* boards/renesas/sh1/us7032evb1/shterm/shterm.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/stat.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <signal.h>
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#include <ctype.h>
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#include <termios.h>
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#include <fcntl.h>
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#include <stdarg.h>
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#include <errno.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Size of the circular buffer used for interrupt I/O */
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#define MAX_FILEPATH 255
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#define ENQ 5
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#define ACK 6
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#define DEFAULT_BAUD 9600
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#define _err(format, ...) if (debug > 0) printconsole(format, ##__VA_ARGS__)
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#define _info(format, ...) if (debug > 1) printconsole(format, ##__VA_ARGS__)
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Function Prototypes
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****************************************************************************/
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static void sendfile(int fdtarg, char *filename, int verify);
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static void receivefile(int fdtarg, char *filename);
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static void getfilename(int fd, char *name);
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static int readbyte(int fd, char *ch);
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static void writebyte(int fd, char byte);
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static void close_tty(void);
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static void interrupt(int signo);
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static void show_usage(const char *progname, int exitcode);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static int debug = 0;
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static int g_fd = -1;
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static int g_fdnb = -1;
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static FILE *g_logstream = NULL;
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static const char g_dfttydev[] = "/dev/ttyS0";
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static const char *g_ttydev = g_dfttydev;
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static const char *g_logfile = 0;
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static int g_baud = DEFAULT_BAUD;
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static struct termios g_termios;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: putconsole
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****************************************************************************/
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static void putconsole(char ch)
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{
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if (g_logstream)
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{
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putc(ch, g_logstream);
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}
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putchar(ch);
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}
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/****************************************************************************
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* Name: flushconsole
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****************************************************************************/
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static void flushconsole(void)
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{
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if (g_logstream)
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{
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fflush(g_logstream);
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}
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fflush(stdout);
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}
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/****************************************************************************
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* Name: printconsole
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****************************************************************************/
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static void printconsole(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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if (g_logstream)
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{
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vfprintf(g_logstream, fmt, ap);
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}
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vprintf(fmt, ap);
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va_end(ap);
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}
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/****************************************************************************
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* Name: sendfile
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****************************************************************************/
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static void sendfile(int fdtarg, char *filename, int verify)
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{
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char chin;
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char chout;
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int fdin;
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int nbytes;
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int ndots;
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int ret;
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/* Source the source file */
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fdin = open(filename, O_RDONLY);
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if (fdin < 0)
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{
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fprintf(stderr, "ERROR: Failed to open '%s' for reading\n", filename);
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writebyte(fdin, '>');
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return;
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}
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if (verify)
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{
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printconsole("Verifying file '%s':\n", filename);
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}
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else
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{
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printconsole("Loading file '%s':\n", filename);
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}
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flushconsole();
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/* This loop processes each byte from the source file */
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nbytes = 0;
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ndots = 0;
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while ((ret = readbyte(fdin, &chout)) == 1)
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{
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/* If verbose debug is OFF, then output dots at a low rate */
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if (debug < 2)
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{
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if (++nbytes > 64)
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{
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nbytes = 0;
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putconsole('.');
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if (++ndots > 72)
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{
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putconsole('\n');
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ndots = 0;
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}
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flushconsole();
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}
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}
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/* If verbose debug is ON, dump everything */
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else if (chout == 'S')
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{
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printconsole("\n[%c", chout);
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}
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else if (isprint(chout))
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{
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printconsole("[%c", chout);
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}
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else
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{
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printconsole("[.");
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}
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/* Send the byte to the target */
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writebyte(fdtarg, chout);
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/* Get the response from the target. Loop until the target responds by
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* either echoing the byte sent or by sending '>'
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*/
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do
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{
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ret = readbyte(fdtarg, &chin);
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/* If verbose debug is ON, echo the response from the target */
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if (ret == 1 && debug >= 2)
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{
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if (chin != chout)
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{
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if (isprint(chin))
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{
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putconsole(chin);
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}
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else
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{
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putconsole('.');
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}
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}
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else
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{
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putconsole(']');
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}
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}
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/* Check if the target is asking to terminate the transfer */
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if (ret == 1 && chin == '>')
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{
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close(fdin);
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writebyte(fdtarg, ACK);
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return;
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}
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}
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while (ret == 1 && chin != chout);
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}
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writebyte(fdtarg, '>');
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do
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{
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ret = readbyte(fdtarg, &chin);
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}
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while (ret == 1 && chin != ENQ);
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close(fdin);
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writebyte(fdtarg, ACK);
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}
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/****************************************************************************
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* Name: receivefile
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****************************************************************************/
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static void receivefile(int fdtarg, char *filename)
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{
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char ch;
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int fdout;
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int nbytes;
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int ndots;
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int ret;
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fdout = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0644);
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if (fdout < 0)
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{
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fprintf(stderr, "ERROR: Failed to open '%s' for writing\n", filename);
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writebyte(fdtarg, '>');
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return;
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}
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printconsole("Receiving file '%s':\n", filename);
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flushconsole();
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writebyte(fdtarg, '+');
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/* Synchronize */
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do
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{
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ret = readbyte(fdtarg, &ch);
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}
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while (ret == 1 && ch != 'S' && ch != 'Q');
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nbytes = 0;
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ndots = 0;
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/* Receive the file */
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while (ret == 1)
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{
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/* Check for end-of-file */
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if (ch == '>')
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{
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close(fdout);
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return;
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}
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writebyte(fdout, ch);
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if (++nbytes > 256)
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{
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nbytes = 0;
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putconsole('.');
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if (++ndots > 72)
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{
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putconsole('\n');
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ndots = 0;
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}
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flushconsole();
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}
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ret = readbyte(fdtarg, &ch);
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if (ch == '\r')
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{
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writebyte(fdtarg, '+');
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}
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}
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close(fdout);
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}
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/****************************************************************************
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* Name: getfilename
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****************************************************************************/
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static void getfilename(int fd, char *name)
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{
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char ch;
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int ret;
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/* Skip over spaces */
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do
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{
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ret = readbyte(fd, &ch);
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}
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while (ch == ' ' && ret == 1);
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/* Concatenate the filename */
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while (ret == 1 && ch > ' ')
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{
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*name++ = ch;
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ret = readbyte(fd, &ch);
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}
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*name++ = 0;
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}
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/****************************************************************************
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* Name: readbyte
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****************************************************************************/
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static int readbyte(int fd, char *ch)
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{
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int ret;
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/* Read characters from the console, and echo them to the target tty */
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ret = read(fd, ch, 1);
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if (ret < 0)
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{
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if (errno != EAGAIN)
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{
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printconsole("ERROR: Failed to read from fd=%d: %s\n", fd,
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strerror(errno));
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close_tty();
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exit(12);
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}
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return -EAGAIN;
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}
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else if (ret > 1)
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{
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printconsole("ERROR: Unexpected number of bytes read(%d) from fd=%d\n",
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ret, fd);
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close_tty();
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exit(13);
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}
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return ret;
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}
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/****************************************************************************
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* Name: writebyte
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****************************************************************************/
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static void writebyte(int fd, char byte)
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{
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int ret = write(fd, &byte, 1);
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if (ret < 0)
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{
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printconsole("ERROR: Failed to write to fd=%d: %s\n", fd,
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strerror(errno));
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close_tty();
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exit(14);
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}
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}
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/****************************************************************************
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* Name: close_tty
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****************************************************************************/
|
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static void close_tty(void)
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{
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int ret;
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|
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if (g_fdnb >= 0)
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{
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close(g_fdnb);
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}
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if (g_fd >= 0)
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{
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ret = tcsetattr(g_fd, TCSANOW, &g_termios);
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if (ret < 0)
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{
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printconsole("ERROR: Failed to restore termios for %s: %s\n",
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g_ttydev, strerror(errno));
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}
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close(g_fd);
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}
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if (g_logstream)
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{
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fclose(g_logstream);
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}
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}
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|
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/****************************************************************************
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* Name: interrupt
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****************************************************************************/
|
|
|
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static void interrupt(int signo)
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{
|
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printconsole("Exit-ing...\n");
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close_tty();
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exit(0);
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}
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|
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/****************************************************************************
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* Name: interrupt
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****************************************************************************/
|
|
|
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static void show_usage(const char *progname, int exitcode)
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{
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fprintf(stderr,
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"\nUSAGE: %s [-h] [-d] [-t <ttyname>] [-b <baud>] [-l <log-file>]\n",
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progname);
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fprintf(stderr, "\nWhere:\n");
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fprintf(stderr, "\t-h: Prints this message then exit.\n");
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fprintf(stderr, "\t-d: Enable debug output (twice for verbose output).\n");
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fprintf(stderr, "\t-t <ttyname>: Use <ttyname> device instead of %s.\n",
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g_dfttydev);
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fprintf(stderr, "\t-b <baud>: Use <baud> instead of %d.\n", DEFAULT_BAUD);
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fprintf(stderr, "\t-l <log-file>: Echo console output in <log-file>.\n");
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exit(exitcode);
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}
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|
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/****************************************************************************
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* Public Functions
|
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****************************************************************************/
|
|
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int main(int argc, char **argv, char **envp)
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{
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struct termios tty;
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char filename[MAX_FILEPATH];
|
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char ch;
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int speed;
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int opt;
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int oflags;
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int ret;
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|
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while ((opt = getopt(argc, argv, ":dt:b:hl:")) != -1)
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{
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switch (opt)
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{
|
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case 'd':
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debug++;
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break;
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|
|
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case 't':
|
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g_ttydev = optarg;
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break;
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|
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case 'b':
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g_baud = atoi(optarg);
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break;
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|
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case 'h':
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show_usage(argv[0], 0);
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break;
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|
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case 'l':
|
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g_logfile = optarg;
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break;
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|
|
|
case ':':
|
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fprintf(stderr, "ERROR: Missing argument to option '%c'\n",
|
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optopt);
|
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show_usage(argv[0], 1);
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break;
|
|
|
|
case '?':
|
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fprintf(stderr, "ERROR: Unrecognized option '%c'\n", optopt);
|
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show_usage(argv[0], 2);
|
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break;
|
|
}
|
|
}
|
|
|
|
if (optind < argc)
|
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{
|
|
fprintf(stderr, "ERROR: Unexpected arguments at end of line\n");
|
|
show_usage(argv[0], 3);
|
|
}
|
|
|
|
switch (g_baud)
|
|
{
|
|
case 0:
|
|
speed = B0;
|
|
break;
|
|
|
|
case 50:
|
|
speed = B50;
|
|
break;
|
|
|
|
case 75:
|
|
speed = B75;
|
|
break;
|
|
|
|
case 110:
|
|
speed = B110;
|
|
break;
|
|
|
|
case 134:
|
|
speed = B134;
|
|
break;
|
|
|
|
case 150:
|
|
speed = B150;
|
|
break;
|
|
|
|
case 200:
|
|
speed = B200;
|
|
break;
|
|
|
|
case 300:
|
|
speed = B300;
|
|
break;
|
|
|
|
case 600:
|
|
speed = B600;
|
|
break;
|
|
|
|
case 1200:
|
|
speed = B1200;
|
|
break;
|
|
|
|
case 1800:
|
|
speed = B1800;
|
|
break;
|
|
|
|
case 2400:
|
|
speed = B2400;
|
|
break;
|
|
|
|
case 4800:
|
|
speed = B4800;
|
|
break;
|
|
|
|
case 9600:
|
|
speed = B9600;
|
|
break;
|
|
|
|
case 19200:
|
|
speed = B19200;
|
|
break;
|
|
|
|
case 38400:
|
|
speed = B38400;
|
|
break;
|
|
|
|
case 57600:
|
|
speed = B57600;
|
|
break;
|
|
|
|
case 115200:
|
|
speed = B115200;
|
|
break;
|
|
|
|
case 230400:
|
|
speed = B230400;
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr, "ERROR: Unsupported BAUD=%d\n", g_baud);
|
|
show_usage(argv[0], 4);
|
|
}
|
|
|
|
/* Was a log file specified? */
|
|
|
|
if (g_logfile)
|
|
{
|
|
g_logstream = fopen(g_logfile, "w");
|
|
if (!g_logstream)
|
|
{
|
|
fprintf(stderr, "ERROR: Failed to open '%s' for writing\n",
|
|
g_logfile);
|
|
return 5;
|
|
}
|
|
}
|
|
|
|
/* Set the host stdin to O_NONBLOCK */
|
|
|
|
oflags = fcntl(0, F_GETFL, 0);
|
|
if (oflags == -1)
|
|
{
|
|
fprintf(stderr, "ERROR: fnctl(F_GETFL) failed: %s\n", strerror(errno));
|
|
return 6;
|
|
}
|
|
|
|
ret = fcntl(0, F_SETFL, oflags | O_NONBLOCK);
|
|
if (ret < 0)
|
|
{
|
|
fprintf(stderr, "ERROR: fnctl(F_SETFL) failed: %s\n", strerror(errno));
|
|
return 7;
|
|
}
|
|
|
|
/* Open the selected serial port (blocking) */
|
|
|
|
g_fd = open(g_ttydev, O_RDWR);
|
|
if (g_fd < 0)
|
|
{
|
|
printconsole("ERROR: Failed to open %s: %s\n",
|
|
g_ttydev, strerror(errno));
|
|
return 8;
|
|
}
|
|
|
|
/* Configure the serial port in at the selected baud in 8-bit, no-parity,
|
|
* raw mode and turn off echo, etc.
|
|
*/
|
|
|
|
ret = tcgetattr(g_fd, &g_termios);
|
|
if (ret < 0)
|
|
{
|
|
printconsole("ERROR: Failed to get termios for %s: %s\n", g_ttydev,
|
|
strerror(errno));
|
|
close(g_fd);
|
|
return 9;
|
|
}
|
|
|
|
memcpy(&tty, &g_termios, sizeof(struct termios));
|
|
tty.c_iflag &=
|
|
~(IGNBRK | BRKINT | PARMRK | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
|
|
tty.c_oflag &= ~OPOST;
|
|
tty.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
|
|
tty.c_cflag &= ~(CSIZE | PARENB);
|
|
tty.c_cflag |= CS8;
|
|
|
|
cfsetispeed(&tty, speed);
|
|
cfsetospeed(&tty, speed);
|
|
|
|
ret = tcsetattr(g_fd, TCSANOW, &tty);
|
|
if (ret < 0)
|
|
{
|
|
printconsole("ERROR: Failed to set termios for %s: %s\n", g_ttydev,
|
|
strerror(errno));
|
|
close(g_fd);
|
|
return 10;
|
|
}
|
|
|
|
#if 1
|
|
/* Open the selected serial port (non-blocking) */
|
|
|
|
g_fdnb = open(g_ttydev, O_RDONLY | O_NONBLOCK);
|
|
if (g_fdnb < 0)
|
|
{
|
|
printconsole("ERROR: Failed to open %s: %s\n",
|
|
g_ttydev, strerror(errno));
|
|
return 11;
|
|
}
|
|
#else
|
|
/* Create a non-blocking copy of the configure tty descriptor */
|
|
|
|
g_fdnb = dup(g_fd);
|
|
if (g_fdnb < 0)
|
|
{
|
|
printconsole("ERROR: Failed to dup %s fd=%d: %s\n", g_ttydev, g_fd,
|
|
strerror(errno));
|
|
close_tty();
|
|
return 12;
|
|
}
|
|
|
|
oflags = fcntl(g_fdnb, F_GETFL, 0);
|
|
if (oflags == -1)
|
|
{
|
|
fprintf(stderr, "ERROR: fnctl(F_GETFL) failed: %s\n", strerror(errno));
|
|
close_tty();
|
|
return 13;
|
|
}
|
|
|
|
ret = fcntl(g_fdnb, F_SETFL, oflags | O_NONBLOCK);
|
|
if (ret < 0)
|
|
{
|
|
fprintf(stderr, "ERROR: fnctl(F_SETFL) failed: %s\n", strerror(errno));
|
|
close_tty();
|
|
return 14;
|
|
}
|
|
#endif
|
|
|
|
/* Catch attempts to control-C out of the program so that we can restore
|
|
* the TTY settings.
|
|
*/
|
|
|
|
signal(SIGINT, interrupt);
|
|
|
|
/* Loopo until control-C */
|
|
|
|
for (; ; )
|
|
{
|
|
/* Read characters from the console, and echo them to the target tty */
|
|
|
|
ret = readbyte(0, &ch);
|
|
if (ret == 0)
|
|
{
|
|
printconsole("End-of-file: exitting\n");
|
|
close_tty();
|
|
return 0;
|
|
}
|
|
else if (ret == 1)
|
|
{
|
|
writebyte(g_fd, ch);
|
|
}
|
|
|
|
/* Read characters from target TTY and echo them on the console */
|
|
|
|
ret = readbyte(g_fdnb, &ch);
|
|
if (ret == 0)
|
|
{
|
|
printconsole(
|
|
"ERROR: Unexpected number of bytes read(%d) from %s\n",
|
|
ret, g_ttydev);
|
|
close_tty();
|
|
return 15;
|
|
}
|
|
else if (ret == 1)
|
|
{
|
|
if (ch == ENQ)
|
|
{
|
|
char ch1;
|
|
char ch2;
|
|
|
|
writebyte(g_fd, '*');
|
|
ret = readbyte(g_fd, &ch1);
|
|
if (ret != 1)
|
|
{
|
|
printconsole
|
|
("ERROR: Unexpected number of bytes read(%d) from %s\n",
|
|
ret, g_ttydev);
|
|
close_tty();
|
|
return 15;
|
|
}
|
|
|
|
ret = readbyte(g_fd, &ch2);
|
|
if (ret != 1)
|
|
{
|
|
printconsole
|
|
("ERROR: Unexpected number of bytes read(%d) from %s\n",
|
|
ret, g_ttydev);
|
|
close_tty();
|
|
return 16;
|
|
}
|
|
|
|
getfilename(g_fd, filename);
|
|
|
|
if (ch1 == 'l' || ch1 == 'L')
|
|
{
|
|
sendfile(g_fd, filename, 0);
|
|
}
|
|
else if (ch1 == 'v' || ch1 == 'V')
|
|
{
|
|
sendfile(g_fd, filename, 1);
|
|
}
|
|
else if (ch1 == 's' || ch1 == 'S')
|
|
{
|
|
receivefile(g_fd, filename);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
putconsole(ch);
|
|
flushconsole();
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|