120 lines
2.7 KiB
Diff
120 lines
2.7 KiB
Diff
|
--- cups-1.2.10/backend/runloop.c.usb-paperout 2006-12-06 20:10:16.000000000 +0000
|
||
|
|
+++ cups-1.2.10/backend/runloop.c 2007-04-25 18:00:59.000000000 +0100
|
||
|
|
@@ -40,6 +40,14 @@
|
||
|
|
#endif /* __hpux */
|
||
|
|
|
||
|
|
|
||
|
|
+#ifdef __linux
|
||
|
|
+#include <sys/ioctl.h>
|
||
|
|
+#include <linux/lp.h>
|
||
|
|
+#include <time.h>
|
||
|
|
+int linux_usb_paperout_hack = 0;
|
||
|
|
+#endif /* __linux */
|
||
|
|
+
|
||
|
|
+
|
||
|
|
/*
|
||
|
|
* 'backendRunLoop()' - Read and write print and back-channel data.
|
||
|
|
*/
|
||
|
|
@@ -64,6 +72,9 @@
|
||
|
|
#if defined(HAVE_SIGACTION) && !defined(HAVE_SIGSET)
|
||
|
|
struct sigaction action; /* Actions for POSIX signals */
|
||
|
|
#endif /* HAVE_SIGACTION && !HAVE_SIGSET */
|
||
|
|
+#ifdef __linux
|
||
|
|
+ time_t last_write = 0; /* Last time write() succeeded */
|
||
|
|
+#endif /* __linux */
|
||
|
|
|
||
|
|
|
||
|
|
fprintf(stderr, "DEBUG: backendRunLoop(print_fd=%d, device_fd=%d, use_bc=%d)\n",
|
||
|
|
@@ -227,6 +238,9 @@
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
+#ifdef __linux
|
||
|
|
+ last_write = time (NULL);
|
||
|
|
+#endif /* __linux */
|
||
|
|
if (paperout)
|
||
|
|
{
|
||
|
|
fputs("STATE: -media-empty-error\n", stderr);
|
||
|
|
@@ -247,7 +261,42 @@
|
||
|
|
total_bytes += bytes;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
+
|
||
|
|
+#ifdef __linux
|
||
|
|
+ if (linux_usb_paperout_hack)
|
||
|
|
+ {
|
||
|
|
+ time_t now;
|
||
|
|
+ if (!paperout &&
|
||
|
|
+ ((now = time(NULL)) - last_write) > 5)
|
||
|
|
+ {
|
||
|
|
+ unsigned int status;
|
||
|
|
+ if (ioctl (device_fd, LPGETSTATUS, &status) == 0 &&
|
||
|
|
+ (status & LP_POUTPA))
|
||
|
|
+ {
|
||
|
|
+ fputs("ERROR: Out of paper!\n", stderr);
|
||
|
|
+ fputs("STATE: +media-empty-error\n", stderr);
|
||
|
|
+ paperout = 1;
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+ /* Don't check status for another 5s. */
|
||
|
|
+ last_write = now;
|
||
|
|
+ }
|
||
|
|
+ }
|
||
|
|
+#endif /* __linux */
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
+#ifdef __linux
|
||
|
|
+ if (linux_usb_paperout_hack)
|
||
|
|
+ {
|
||
|
|
+ /* Wait for the last write() to finish. */
|
||
|
|
+ do
|
||
|
|
+ {
|
||
|
|
+ FD_ZERO(&output);
|
||
|
|
+ FD_SET(device_fd, &output);
|
||
|
|
+ } while (select(device_fd + 1, NULL, &output, NULL, NULL) < 0 &&
|
||
|
|
+ errno == EINTR);
|
||
|
|
}
|
||
|
|
+#endif /* __linux */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Return with success...
|
||
|
|
--- cups-1.2.10/backend/usb-unix.c.usb-paperout 2007-04-25 17:50:06.000000000 +0100
|
||
|
|
+++ cups-1.2.10/backend/usb-unix.c 2007-04-25 17:50:06.000000000 +0100
|
||
|
|
@@ -39,6 +39,11 @@
|
||
|
|
#include "ieee1284.c"
|
||
|
|
#include <sys/select.h>
|
||
|
|
|
||
|
|
+#ifdef __linux
|
||
|
|
+#include <unistd.h>
|
||
|
|
+#include <fcntl.h>
|
||
|
|
+extern int linux_usb_paperout_hack;
|
||
|
|
+#endif /* __linux */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Local functions...
|
||
|
|
@@ -70,6 +75,11 @@
|
||
|
|
(void)argc;
|
||
|
|
(void)argv;
|
||
|
|
|
||
|
|
+#ifdef __linux
|
||
|
|
+ /* Get the runloop to check for USB paper-out condition. */
|
||
|
|
+ linux_usb_paperout_hack = 1;
|
||
|
|
+#endif /* __linux */
|
||
|
|
+
|
||
|
|
/*
|
||
|
|
* Open the USB port device...
|
||
|
|
*/
|
||
|
|
@@ -150,6 +160,12 @@
|
||
|
|
|
||
|
|
tcsetattr(device_fd, TCSANOW, &opts);
|
||
|
|
|
||
|
|
+#ifdef __linux
|
||
|
|
+ /* Put the file descriptor into non-blocking mode so that we
|
||
|
|
+ * get a chance to detect paper-out. */
|
||
|
|
+ fcntl (device_fd, F_SETFL, fcntl (device_fd, F_GETFL) | O_NONBLOCK);
|
||
|
|
+#endif /* __linux */
|
||
|
|
+
|
||
|
|
/*
|
||
|
|
* Finally, send the print file...
|
||
|
|
*/
|