/*
- * "$Id: usb-unix.c 5553 2006-05-20 12:22:27Z mike $"
+ * "$Id: usb-unix.c 181 2006-06-22 20:01:18Z jlovell $"
*
* USB port backend for the Common UNIX Printing System (CUPS).
*
*
* Contents:
*
- * main() - Send a file to the specified USB port.
+ * print_device() - Print a file to a USB device.
* list_devices() - List all USB devices.
+ * open_device() - Open a USB device...
*/
/*
const char *hostname, /* I - Hostname/manufacturer */
const char *resource, /* I - Resource/modelname */
const char *options, /* I - Device options/serial number */
- int fp, /* I - File descriptor to print */
+ int print_fd, /* I - File descriptor to print */
int copies, /* I - Copies to print */
int argc, /* I - Number of command-line arguments (6 or 7) */
char *argv[]) /* I - Command-line arguments */
{
- int usebc; /* Use backchannel path? */
- int fd; /* USB device */
- int rbytes; /* Number of bytes read */
- int wbytes; /* Number of bytes written */
- size_t nbytes, /* Number of bytes read */
- tbytes; /* Total number of bytes written */
- char buffer[8192], /* Output buffer */
- *bufptr, /* Pointer into buffer */
- backbuf[1024]; /* Backchannel buffer */
+ int use_bc; /* Use backchannel path? */
+ int device_fd; /* USB device */
+ size_t tbytes; /* Total number of bytes written */
struct termios opts; /* Parallel port options */
- fd_set input, /* Input set for select() */
- output; /* Output set for select() */
- int paperout; /* Paper out? */
-#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
- struct sigaction action; /* Actions for POSIX signals */
-#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
-#ifdef __linux
+#if defined(__linux) && defined(LP_POUTPA)
unsigned int status; /* Port status (off-line, out-of-paper, etc.) */
-#endif /* __linux */
+ int paperout; /* Paper out? */
+#endif /* __linux && LP_POUTPA */
+
(void)argc;
(void)argv;
* when they get a read request...
*/
- usebc = strcasecmp(hostname, "Canon") != 0;
+ use_bc = strcasecmp(hostname, "Canon") != 0;
/*
* Open the USB port device...
do
{
- if ((fd = open_device(uri)) == -1)
+ if ((device_fd = open_device(uri)) == -1)
{
if (getenv("CLASS") != NULL)
{
fputs("INFO: USB port busy; will retry in 30 seconds...\n", stderr);
sleep(30);
}
- else if (errno == ENXIO || errno == EIO || errno == ENOENT || errno == ENODEV)
+ else if (errno == ENXIO || errno == EIO || errno == ENOENT ||
+ errno == ENODEV)
{
fputs("INFO: Printer not connected; will retry in 30 seconds...\n", stderr);
sleep(30);
}
}
}
- while (fd < 0);
+ while (device_fd < 0);
fputs("STATE: -connecting-to-device\n", stderr);
* Set any options provided...
*/
- tcgetattr(fd, &opts);
+ tcgetattr(device_fd, &opts);
opts.c_lflag &= ~(ICANON | ECHO | ISIG); /* Raw mode */
/**** No options supported yet ****/
- tcsetattr(fd, TCSANOW, &opts);
-
- /*
- * Check printer status...
- */
-
- paperout = 0;
+ tcsetattr(device_fd, TCSANOW, &opts);
#if defined(__linux) && defined(LP_POUTPA)
/*
* Show the printer status before we send the file...
*/
- while (!ioctl(fd, LPGETSTATUS, &status))
+ paperout = 0;
+
+ while (!ioctl(device_fd, LPGETSTATUS, &status))
{
- fprintf(stderr, "DEBUG: LPGETSTATUS returned a port status of %02X...\n", status);
+ fprintf(stderr, "DEBUG: LPGETSTATUS returned a port status of %02X...\n",
+ status);
if (status & LP_POUTPA)
{
}
#endif /* __linux && LP_POUTPA */
- /*
- * Now that we are "connected" to the port, ignore SIGTERM so that we
- * can finish out any page data the driver sends (e.g. to eject the
- * current page... Only ignore SIGTERM if we are printing data from
- * stdin (otherwise you can't cancel raw jobs...)
- */
-
- if (!fp)
- {
-#ifdef HAVE_SIGSET /* Use System V signals over POSIX to avoid bugs */
- sigset(SIGTERM, SIG_IGN);
-#elif defined(HAVE_SIGACTION)
- memset(&action, 0, sizeof(action));
-
- sigemptyset(&action.sa_mask);
- action.sa_handler = SIG_IGN;
- sigaction(SIGTERM, &action, NULL);
-#else
- signal(SIGTERM, SIG_IGN);
-#endif /* HAVE_SIGSET */
- }
-
/*
* Finally, send the print file...
*/
- wbytes = 0;
+ tbytes = 0;
- while (copies > 0)
+ while (copies > 0 && tbytes >= 0)
{
copies --;
- if (fp != 0)
+ if (print_fd != 0)
{
fputs("PAGE: 1 1\n", stderr);
- lseek(fp, 0, SEEK_SET);
+ lseek(print_fd, 0, SEEK_SET);
}
- tbytes = 0;
- while ((nbytes = read(fp, buffer, sizeof(buffer))) > 0)
- {
- /*
- * Write the print data to the printer...
- */
-
- tbytes += nbytes;
- bufptr = buffer;
-
- while (nbytes > 0)
- {
- /*
- * See if we are ready to read or write...
- */
-
- do
- {
- FD_ZERO(&input);
- if (usebc)
- FD_SET(fd, &input);
-
- FD_ZERO(&output);
- FD_SET(fd, &output);
- }
- while (select(fd + 1, &input, &output, NULL, NULL) < 0);
-
- if (FD_ISSET(fd, &input))
- {
- /*
- * Read backchannel data...
- */
-
- if ((rbytes = read(fd, backbuf, sizeof(backbuf))) > 0)
- {
- fprintf(stderr, "DEBUG: Received %d bytes of back-channel data!\n",
- rbytes);
- cupsBackChannelWrite(backbuf, rbytes, 1.0);
- }
- }
-
- if (FD_ISSET(fd, &output))
- {
- /*
- * Write print data...
- */
-
- if ((wbytes = write(fd, bufptr, nbytes)) < 0)
- if (errno == ENOTTY)
- wbytes = write(fd, bufptr, nbytes);
-
- if (wbytes < 0)
- {
- /*
- * Check for retryable errors...
- */
-
- if (errno == ENOSPC)
- {
- paperout = 1;
- fputs("ERROR: Out of paper!\n", stderr);
- fputs("STATUS: +media-tray-empty-error\n", stderr);
- }
- else if (errno != EAGAIN && errno != EINTR)
- {
- perror("ERROR: Unable to send print file to printer");
- break;
- }
- }
- else
- {
- /*
- * Update count and pointer...
- */
-
- if (paperout)
- {
- fputs("STATUS: -media-tray-empty-error\n", stderr);
- paperout = 0;
- }
-
- nbytes -= wbytes;
- bufptr += wbytes;
- }
- }
- }
-
- if (wbytes < 0)
- break;
+ tbytes = backendRunLoop(print_fd, device_fd, 1);
- if (fp)
- fprintf(stderr, "INFO: Sending print file, %lu bytes...\n",
- (unsigned long)tbytes);
- }
+ if (print_fd != 0 && tbytes >= 0)
+ fprintf(stderr, "INFO: Sent print file, " CUPS_LLFMT " bytes...\n",
+ CUPS_LLCAST tbytes);
}
/*
* Close the USB port and return...
*/
- close(fd);
+ close(device_fd);
- return (wbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK);
+ return (tbytes < 0 ? CUPS_BACKEND_FAILED : CUPS_BACKEND_OK);
}
if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
{
- if (!get_device_id(fd, device_id, sizeof(device_id),
- make_model, sizeof(make_model),
- "usb", device_uri, sizeof(device_uri)))
+ if (!backendGetDeviceID(fd, device_id, sizeof(device_id),
+ make_model, sizeof(make_model),
+ "usb", device_uri, sizeof(device_uri)))
printf("direct %s \"%s\" \"%s USB #%d\" \"%s\"\n", device_uri,
make_model, make_model, i + 1, device_id);
if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
{
- if (!get_device_id(fd, device_id, sizeof(device_id),
- make_model, sizeof(make_model),
- "usb", device_uri, sizeof(device_uri)))
+ if (!backendGetDeviceID(fd, device_id, sizeof(device_id),
+ make_model, sizeof(make_model),
+ "usb", device_uri, sizeof(device_uri)))
printf("direct %s \"%s\" \"%s USB #%d\" \"%s\"\n", device_uri,
make_model, make_model, i + 1, device_id);
if (!strncmp(uri, "usb:/dev/", 9))
#ifdef __linux
- return (-1); /* Do not allow direct devices anymore */
+ {
+ /*
+ * Do not allow direct devices anymore...
+ */
+
+ errno = ENODEV;
+ return (-1);
+ }
else if (!strncmp(uri, "usb://", 6))
{
/*
if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
{
- get_device_id(fd, device_id, sizeof(device_id),
- make_model, sizeof(make_model),
- "usb", device_uri, sizeof(device_uri));
+ backendGetDeviceID(fd, device_id, sizeof(device_id),
+ make_model, sizeof(make_model),
+ "usb", device_uri, sizeof(device_uri));
}
else
{
return (-1);
}
#elif defined(__sun) && defined(ECPPIOC_GETDEVID)
- return (-1); /* Do not allow direct devices anymore */
+ {
+ /*
+ * Do not allow direct devices anymore...
+ */
+
+ errno = ENODEV;
+ return (-1);
+ }
else if (!strncmp(uri, "usb://", 6))
{
/*
sprintf(device, "/dev/usb/printer%d", i);
if ((fd = open(device, O_RDWR | O_EXCL)) >= 0)
- get_device_id(fd, device_id, sizeof(device_id),
- make_model, sizeof(make_model),
- "usb", device_uri, sizeof(device_uri));
+ backendGetDeviceID(fd, device_id, sizeof(device_id),
+ make_model, sizeof(make_model),
+ "usb", device_uri, sizeof(device_uri));
else
{
/*
/*
- * End of "$Id: usb-unix.c 5553 2006-05-20 12:22:27Z mike $".
+ * End of "$Id: usb-unix.c 181 2006-06-22 20:01:18Z jlovell $".
*/
projects / thirdparty / cups.git / blobdiff