7572a4735f
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1133 42af7a65-404d-4744-a932-0658087f49c3
607 lines
16 KiB
C
607 lines
16 KiB
C
/****************************************************************************
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* config/us7032evb1/shterm/shterm.c
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*
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* Copyright(C) 2008 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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/types.h>
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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 <termios.h>
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#include <fcntl.h>
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#include <errno.h>
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/****************************************************************************
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* 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 dbg(format, arg...) if (debug > 0) printf(format, ##arg)
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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 const char g_dfttydev[] = "/dev/ttyS0";
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static const char *g_ttydev = g_dfttydev;
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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: 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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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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(void)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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printf("Verifying file '%s':\n", filename);
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}
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else
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{
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printf("Loading file '%s':\n", filename);
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}
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fflush(stdout);
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while ((ret = readbyte(fdin, &chout)) == 1)
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{
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if (++nbytes > 256)
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{
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nbytes = 0;
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putchar('.');
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if (++ndots > 72)
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{
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putchar('\n');
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fflush(stdout);
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ndots = 0;
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}
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}
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writebyte(fdtarg, chout);
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do
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{
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ret = readbyte(fdtarg, &chin);
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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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(void)writebyte(fdtarg, '>');
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return;
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}
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printf("Receiving file '%s':\n", filename);
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fflush(stdout);
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(void)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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putchar('.');
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if (++ndots > 72)
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{
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putchar('\n');
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ndots = 0;
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}
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fflush(stdout);
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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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printf("ERROR: Failed to read from fd=%d: %s\n", fd, 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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printf("ERROR: Unexpected number of bytes read(%d) from fd=%d\n", 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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printf("ERROR: Failed to write to fd=%d: %s\n", fd, 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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if (g_fdnb >= 0)
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{
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(void)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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printf("ERROR: Failed to restore termios for %s: %s\n", g_ttydev, strerror(errno));
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}
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(void)close(g_fd);
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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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printf("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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* 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, "\nUSAGE: %s [-h] [-t <ttyname>] [-b <baud>]\n", 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-t <ttyname>: Use <ttyname> device instead of %s.\n", g_dfttydev);
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fprintf(stderr, "\t-b <baud>: Use <baud> instead of %d.\n", DEFAULT_BAUD);
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exit(exitcode);
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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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while((opt = getopt(argc, argv, ":t:b:h")) != -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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case 't':
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g_ttydev = optarg;
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break;
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case 'b':
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g_baud = atoi(optarg);
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break;
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case ':':
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fprintf(stderr, "ERROR: Missing argument to option '%c'\n", optopt);
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show_usage(argv[0], 1);
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break;
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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;
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}
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}
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if(optind < argc)
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{
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fprintf(stderr, "ERROR: Unexpected arguments at end of line\n");
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show_usage(argv[0], 3);
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}
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switch(g_baud)
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{
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case 0: speed = B0; break;
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case 50: speed = B50; break;
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case 75: speed = B75; break;
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case 110: speed = B110; break;
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case 134: speed = B134; break;
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case 150: speed = B150; break;
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case 200: speed = B200; break;
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case 300: speed = B300; break;
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case 600: speed = B600; break;
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case 1200: speed = B1200; break;
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case 1800: speed = B1800; break;
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case 2400: speed = B2400; break;
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case 4800: speed = B4800; break;
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case 9600: speed = B9600; break;
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case 19200: speed = B19200; break;
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case 38400: speed = B38400; break;
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case 57600: speed = B57600; break;
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case 115200: speed = B115200; break;
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case 230400: speed = B230400; break;
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default:
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fprintf(stderr, "ERROR: Unsupported BAUD=%d\n", g_baud);
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show_usage(argv[0], 4);
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}
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/* Set the host stdin to O_NONBLOCK */
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oflags = fcntl(0, F_GETFL, 0);
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if(oflags == -1)
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{
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fprintf(stderr, "ERROR: fnctl(F_GETFL) failed: %s\n", strerror(errno));
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return 5;
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}
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ret = fcntl(0, F_SETFL, oflags | O_NONBLOCK);
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if(ret < 0)
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{
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fprintf(stderr, "ERROR: fnctl(F_SETFL) failed: %s\n", strerror(errno));
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return 6;
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}
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/* Open the selected serial port (blocking)*/
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g_fd = open(g_ttydev, O_RDWR);
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if(g_fd < 0)
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{
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printf("ERROR: Failed to open %s: %s\n", g_ttydev, strerror(errno));
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return 7;
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}
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/* Configure the serial port in at the selected baud in 8-bit, no-parity, raw mode
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* and turn off echo, etc.
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*/
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ret = tcgetattr(g_fd, &g_termios);
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if(ret < 0)
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{
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printf("ERROR: Failed to get termios for %s: %s\n", g_ttydev, strerror(errno));
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close(g_fd);
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return 8;
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}
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memcpy(&tty, &g_termios, sizeof(struct termios));
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tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
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tty.c_oflag &= ~OPOST;
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tty.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
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tty.c_cflag &= ~(CSIZE|PARENB);
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tty.c_cflag |= CS8;
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(void)cfsetispeed(&tty, speed);
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(void)cfsetospeed(&tty, speed);
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ret = tcsetattr(g_fd, TCSANOW, &tty);
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if(ret < 0)
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{
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printf("ERROR: Failed to set termios for %s: %s\n", g_ttydev, strerror(errno));
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close(g_fd);
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return 9;
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}
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#if 1
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/* Open the selected serial port (non-blocking)*/
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g_fdnb = open(g_ttydev, O_RDONLY | O_NONBLOCK);
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if(g_fdnb < 0)
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{
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printf("ERROR: Failed to open %s: %s\n", g_ttydev, strerror(errno));
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return 9;
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}
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#else
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/* Create a non-blocking copy of the configure tty descriptor */
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g_fdnb = dup(g_fd);
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if (g_fdnb < 0)
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{
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printf("ERROR: Failed to dup %s fd=%d: %s\n", g_ttydev, g_fd, strerror(errno));
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close_tty();
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return 9;
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}
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oflags = fcntl(g_fdnb, F_GETFL, 0);
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if(oflags == -1)
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{
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fprintf(stderr, "ERROR: fnctl(F_GETFL) failed: %s\n", strerror(errno));
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close_tty();
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return 10;
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}
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ret = fcntl(g_fdnb, F_SETFL, oflags | O_NONBLOCK);
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if(ret < 0)
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{
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fprintf(stderr, "ERROR: fnctl(F_SETFL) failed: %s\n", strerror(errno));
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close_tty();
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return 11;
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}
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#endif
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/* Catch attempts to control-C out of the program so that we can restore
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* the TTY settings.
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*/
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signal(SIGINT, interrupt);
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/* Loopo until control-C */
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for(;;)
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{
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/* Read characters from the console, and echo them to the target tty */
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ret = readbyte(0, &ch);
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if (ret == 0)
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{
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printf("End-of-file: exitting\n");
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close_tty();
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return 0;
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}
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else if (ret == 1)
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{
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writebyte(g_fd, ch);
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}
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/* Read characters from target TTY and echo them on the console */
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ret = readbyte(g_fdnb, &ch);
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if (ret == 0)
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{
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printf("ERROR: Unexpected number of bytes read(%d) from %s\n", ret, g_ttydev);
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close_tty();
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return 15;
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}
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else if (ret == 1)
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{
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if (ch == ENQ)
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{
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char ch1;
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char ch2;
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writebyte(g_fd, '*');
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ret = readbyte(g_fd, &ch1);
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if (ret != 1)
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{
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printf("ERROR: Unexpected number of bytes read(%d) from %s\n", ret, g_ttydev);
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close_tty();
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return 16;
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}
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ret = readbyte(g_fd, &ch2);
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if (ret != 1)
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{
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printf("ERROR: Unexpected number of bytes read(%d) from %s\n", ret, g_ttydev);
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close_tty();
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return 17;
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}
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getfilename(g_fd, filename);
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|
|
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
|
|
{
|
|
writebyte(1, ch);
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|