int nsh_consolemain(int argc, char *argv[])
{
FAR struct console_stdio_s *pstate = nsh_newconsole();
int ret;
DEBUGASSERT(pstate);
/* Initialize any USB tracing options that were requested */
#ifdef CONFIG_NSH_USBDEV_TRACE
usbtrace_enable(TRACE_BITSET);
#endif
/* Initialize the USB serial driver */
#if defined(CONFIG_PL2303) || defined(CONFIG_CDCACM)
#ifdef CONFIG_CDCACM
ret = cdcacm_initialize(CONFIG_NSH_USBDEV_MINOR, NULL);
#else
ret = usbdev_serialinitialize(CONFIG_NSH_USBDEV_MINOR);
#endif
DEBUGASSERT(ret == OK);
#endif
/* Configure to use /dev/null if we do not have a valid console. */
#ifndef CONFIG_DEV_CONSOLE
(void)nsh_nullstdio();
#endif
/* Execute the one-time start-up script (output may go to /dev/null) */
#ifdef CONFIG_NSH_ROMFSETC
(void)nsh_initscript(&pstate->cn_vtbl);
#endif
/* Now loop, executing creating a session for each USB connection */
for (;;)
{
/* Wait for the USB to be connected to the host and switch
* standard I/O to the USB serial device.
*/
ret = nsh_waitusbready();
DEBUGASSERT(ret == OK);
/* Execute the session */
(void)nsh_session(pstate);
/* Switch to /dev/null because we probably no longer have a
* valid console device.
*/
(void)nsh_nullstdio();
}
}
int MAIN_NAME(int argc, char *argv[])
{
pthread_attr_t attr;
int ret;
/* Initialize global data */
memset(&g_usbterm, 0, sizeof(struct usbterm_globals_s));
/* Initialization of the USB hardware may be performed by logic external to
* this test.
*/
#ifdef CONFIG_EXAMPLES_USBTERM_DEVINIT
message(MAIN_STRING "Performing external device initialization\n");
ret = usbterm_devinit();
if (ret != OK)
{
message(MAIN_STRING "usbterm_devinit failed: %d\n", ret);
goto errout;
}
#endif
/* Initialize the USB serial driver */
message(MAIN_STRING "Registering USB serial driver\n");
#ifdef CONFIG_CDCACM
ret = cdcacm_initialize(0, NULL);
#else
ret = usbdev_serialinitialize(0);
#endif
if (ret < 0)
{
message(MAIN_STRING "ERROR: Failed to create the USB serial device: %d\n", -ret);
goto errout_with_devinit;
}
message(MAIN_STRING "Successfully registered the serial driver\n");
#if CONFIG_USBDEV_TRACE && CONFIG_USBDEV_TRACE_INITIALIDSET != 0
/* If USB tracing is enabled and tracing of initial USB events is specified,
* then dump all collected trace data to stdout
*/
sleep(5);
dumptrace();
#endif
/* Then, in any event, configure trace data collection as configured */
usbtrace_enable(TRACE_BITSET);
/* Open the USB serial device for writing */
do
{
message(MAIN_STRING "Opening USB serial driver\n");
g_usbterm.outstream = fopen(USBTERM_DEVNAME, "w");
if (g_usbterm.outstream == NULL)
{
int errcode = errno;
message(MAIN_STRING "ERROR: Failed to open " USBTERM_DEVNAME " for writing: %d\n",
errcode);
/* ENOTCONN means that the USB device is not yet connected */
if (errcode == ENOTCONN)
{
message(MAIN_STRING " Not connected. Wait and try again.\n");
sleep(5);
}
else
{
/* Give up on other errors */
goto errout_with_devinit;
}
}
/* If USB tracing is enabled, then dump all collected trace data to stdout */
dumptrace();
}
while (g_usbterm.outstream == NULL);
/* Open the USB serial device for reading. Since we are already connected, this
* should not fail.
*/
g_usbterm.instream = fopen(USBTERM_DEVNAME, "r");
if (g_usbterm.instream == NULL)
{
message(MAIN_STRING "ERROR: Failed to open " USBTERM_DEVNAME " for reading: %d\n", errno);
goto errout_with_outstream;
}
message(MAIN_STRING "Successfully opened the serial driver\n");
/* Start the USB term listener thread */
message(MAIN_STRING "Starting the listener thread\n");
ret = pthread_attr_init(&attr);
if (ret != OK)
{
message(MAIN_STRING "pthread_attr_init failed: %d\n", ret);
goto errout_with_streams;
}
ret = pthread_create(&g_usbterm.listener, &attr,
usbterm_listener, (pthread_addr_t)0);
if (ret != 0)
{
message(MAIN_STRING "Error in thread creation: %d\n", ret);
goto errout_with_streams;
}
/* Send messages and get responses -- forever */
message(MAIN_STRING "Waiting for local input\n");
for (;;)
{
/* Display the prompt string on stdout */
fputs("usbterm> ", stdout);
fflush(stdout);
/* Get the next line of input */
#ifdef CONFIG_EXAMPLES_USBTERM_FGETS
/* fgets returns NULL on end-of-file or any I/O error */
if (fgets(g_usbterm.outbuffer, CONFIG_EXAMPLES_USBTERM_BUFLEN, stdin) == NULL)
{
printf("ERROR: fgets failed: %d\n", errno);
return 1;
}
#else
ret = readline(g_usbterm.outbuffer, CONFIG_EXAMPLES_USBTERM_BUFLEN, stdin, stdout);
/* Readline normally returns the number of characters read,
* but will return 0 on end of file or a negative value
* if an error occurs. Either will cause the session to
* terminate.
*/
if (ret <= 0)
{
printf("ERROR: readline failed: %d\n", ret);
return 1;
}
#endif
/* Is there anyone listening on the other end? */
else if (g_usbterm.peer)
{
/* Yes.. Send the line of input via USB */
fputs(g_usbterm.outbuffer, g_usbterm.outstream);
/* Display the prompt string on the remote USB serial connection */
fputs("\rusbterm> ", g_usbterm.outstream);
fflush(g_usbterm.outstream);
}
else
{
printf("Still waiting for remote peer. Please try again later.\n", ret);
}
/* If USB tracing is enabled, then dump all collected trace data to stdout */
dumptrace();
}
/* Error exits */
errout_with_streams:
fclose(g_usbterm.instream);
errout_with_outstream:
fclose(g_usbterm.outstream);
errout_with_devinit:
#ifdef CONFIG_EXAMPLES_USBTERM_DEVINIT
usbterm_devuninit();
errout:
#endif
message(MAIN_STRING " Aborting\n");
return 1;
}
int usbserial_main(int argc, char *argv[])
#endif
{
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
int infd;
#endif
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
int outfd;
#endif
#ifdef COUNTER_NEEDED
int count = 0;
#endif
ssize_t nbytes;
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
int i, j, k;
#endif
int ret;
/* Initialize the USB serial driver */
printf("usbserial_main: Registering USB serial driver\n");
#ifdef CONFIG_CDCACM
ret = cdcacm_initialize(0, NULL);
#else
ret = usbdev_serialinitialize(0);
#endif
if (ret < 0)
{
printf("usbserial_main: ERROR: Failed to create the USB serial device: %d\n", -ret);
return 1;
}
printf("usbserial_main: Successfully registered the serial driver\n");
#if CONFIG_USBDEV_TRACE && CONFIG_USBDEV_TRACE_INITIALIDSET != 0
/* If USB tracing is enabled and tracing of initial USB events is specified,
* then dump all collected trace data to stdout
*/
sleep(5);
dumptrace();
#endif
/* Then, in any event, configure trace data collection as configured */
usbtrace_enable(TRACE_BITSET);
/* Open the USB serial device for writing (blocking) */
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
do
{
printf("usbserial_main: Opening USB serial driver\n");
outfd = open(USBSER_DEVNAME, O_WRONLY);
if (outfd < 0)
{
int errcode = errno;
printf("usbserial_main: ERROR: Failed to open " USBSER_DEVNAME " for writing: %d\n", errcode);
/* ENOTCONN means that the USB device is not yet connected */
if (errcode == ENOTCONN)
{
printf("usbserial_main: Not connected. Wait and try again.\n");
sleep(5);
}
else
{
/* Give up on other errors */
printf("usbserial_main: Aborting\n");
return 2;
}
}
/* If USB tracing is enabled, then dump all collected trace data to stdout */
dumptrace();
}
while (outfd < 0);
#endif
/* Open the USB serial device for reading (non-blocking) */
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
infd = open(USBSER_DEVNAME, O_RDONLY|O_NONBLOCK);
if (infd < 0)
{
printf("usbserial_main: ERROR: Failed to open " USBSER_DEVNAME " for reading: %d\n", errno);
close(outfd);
return 3;
}
#else
do
{
infd = open(USBSER_DEVNAME, O_RDONLY|O_NONBLOCK);
if (infd < 0)
{
int errcode = errno;
printf("usbserial_main: ERROR: Failed to open " USBSER_DEVNAME " for reading: %d\n", errno);
/* ENOTCONN means that the USB device is not yet connected */
if (errcode == ENOTCONN)
{
printf("usbserial_main: Not connected. Wait and try again.\n");
sleep(5);
}
else
{
/* Give up on other errors */
printf("usbserial_main: Aborting\n");
return 3;
}
}
/* If USB tracing is enabled, then dump all collected trace data to stdout */
dumptrace();
}
while (infd < 0);
#endif
#endif
printf("usbserial_main: Successfully opened the serial driver\n");
/* Send messages and get responses -- forever */
for (;;)
{
/* Test IN (device-to-host) messages */
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
#if !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) && !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL)
if (count < 8)
{
printf("usbserial_main: Saying hello\n");
nbytes = write(outfd, g_shortmsg, sizeof(g_shortmsg));
count++;
}
else
{
printf("usbserial_main: Reciting QEI's speech of 1588\n");
nbytes = write(outfd, g_longmsg, sizeof(g_longmsg));
count = 0;
}
#elif !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL)
printf("usbserial_main: Reciting QEI's speech of 1588\n");
nbytes = write(outfd, g_longmsg, sizeof(g_longmsg));
#else /* !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) */
printf("usbserial_main: Saying hello\n");
nbytes = write(outfd, g_shortmsg, sizeof(g_shortmsg));
#endif
/* Test if the write was successful */
if (nbytes < 0)
{
printf("usbserial_main: ERROR: write failed: %d\n", errno);
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
close(infd);
#endif
close(outfd);
return 4;
}
printf("usbserial_main: %ld bytes sent\n", (long)nbytes);
#endif /* CONFIG_EXAMPLES_USBSERIAL_OUTONLY */
/* Test OUT (host-to-device) messages */
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
/* Poll for incoming messages */
printf("usbserial_main: Polling for OUT messages\n");
for (i = 0; i < 5; i++)
{
memset(g_iobuffer, 'X', IOBUFFER_SIZE);
nbytes = read(infd, g_iobuffer, IOBUFFER_SIZE);
if (nbytes < 0)
{
int errorcode = errno;
if (errorcode != EAGAIN)
{
printf("usbserial_main: ERROR: read failed: %d\n", errno);
close(infd);
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
close(outfd);
#endif
return 6;
}
}
else
{
printf("usbserial_main: Received l%d bytes:\n", (long)nbytes);
if (nbytes > 0)
{
for (j = 0; j < nbytes; j += 16)
{
printf("usbserial_main: %03x: ", j);
for (k = 0; k < 16; k++)
{
if (k == 8)
{
printf(" ");
}
if (j+k < nbytes)
{
printf("%02x", g_iobuffer[j+k]);
}
else
{
printf(" ");
}
}
printf(" ");
for (k = 0; k < 16; k++)
{
if (k == 8)
{
printf(" ");
}
if (j+k < nbytes)
{
if (g_iobuffer[j+k] >= 0x20 && g_iobuffer[j+k] < 0x7f)
{
printf("%c", g_iobuffer[j+k]);
}
else
{
printf(".");
}
}
else
{
printf(" ");
}
}
printf("\n");
}
}
}
sleep(1);
}
#else /* CONFIG_EXAMPLES_USBSERIAL_INONLY */
printf("usbserial_main: Waiting\n");
sleep(5);
#endif /* CONFIG_EXAMPLES_USBSERIAL_INONLY */
/* If USB tracing is enabled, then dump all collected trace data to stdout */
dumptrace();
}
/* Won't get here, but if we did this what we would have to do */
#ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY
close(infd);
#endif
#ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY
close(outfd);
#endif
return 0;
}
int nsh_usbconsole(void)
{
int fd;
int ret;
/* Don't start the NSH console until the console device is ready. Chances
* are, we get here with no functional console. The USB console will not
* be available until the device is connected to the host and until the
* host-side application opens the connection.
*/
/* Initialize the USB serial driver */
#ifdef CONFIG_CDCACM
ret = cdcacm_initialize(0, NULL);
#else
ret = usbdev_serialinitialize(0);
#endif
DEBUGASSERT(ret == OK);
/* Make sure the stdin, stdout, and stderr are closed */
(void)fclose(stdin);
(void)fclose(stdout);
(void)fclose(stderr);
/* Open the USB serial device for writing */
do
{
/* Try to open the console */
fd = open("/dev/console", O_RDWR);
if (fd < 0)
{
/* ENOTCONN means that the USB device is not yet connected. Anything
* else is bad.
*/
DEBUGASSERT(errno == ENOTCONN);
/* Sleep a bit and try again */
sleep(2);
}
}
while (fd < 0);
/* Dup the fd to create standard fd 0-2 */
(void)dup2(fd, 0);
(void)dup2(fd, 1);
(void)dup2(fd, 2);
/* We can close the original file descriptor now (unless it was one of 0-2) */
if (fd > 2)
{
close(fd);
}
/* fdopen to get the stdin, stdout and stderr streams. The following logic depends
* on the fact that the library layer will allocate FILEs in order. And since
* we closed stdin, stdout, and stderr above, that is what we should get.
*
* fd = 0 is stdin (read-only)
* fd = 1 is stdout (write-only, append)
* fd = 2 is stderr (write-only, append)
*/
(void)fdopen(0, "r");
(void)fdopen(1, "a");
(void)fdopen(2, "a");
return OK;
}
