patch-2.4.4 linux/drivers/s390/char/tubttyscl.c

• Lines: 89
• Date: Wed Apr 11 19:02:28 2001
• Orig file: v2.4.3/linux/drivers/s390/char/tubttyscl.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.3/linux/drivers/s390/char/tubttyscl.c linux/drivers/s390/char/tubttyscl.c
@@ -0,0 +1,88 @@
+/*
+ *  IBM/3270 Driver -- Copyright (C) 2000, 2001 UTS Global LLC
+ *
+ *  tubttyscl.c -- Linemode tty driver scroll-timing functions
+ *
+ *
+ *
+ *
+ *
+ *  Author:  Richard Hitt
+ */
+#include "tubio.h"
+       void tty3270_scl_settimer(tub_t *);
+       void tty3270_scl_resettimer(tub_t *);
+static void tty3270_scl_timeout(unsigned long);
+
+void
+tty3270_scl_settimer(tub_t *tubp)
+{
+	struct timer_list *tp = &tubp->tty_stimer;
+
+	if (tubp->flags & TUB_SCROLLTIMING)
+		return;
+	if (tubp->tty_scrolltime == 0)
+		return;
+
+	init_timer(tp);
+	tp->expires = jiffies + HZ * tubp->tty_scrolltime;
+	tp->data = (unsigned long)tubp;
+	tp->function = tty3270_scl_timeout;
+	add_timer(tp);
+	tubp->flags |= TUB_SCROLLTIMING;
+}
+
+void
+tty3270_scl_resettimer(tub_t *tubp)
+{
+	struct timer_list *tp = &tubp->tty_stimer;
+
+	if ((tubp->flags & TUB_SCROLLTIMING) == 0)
+		return;
+
+	del_timer(tp);
+	tubp->flags &= ~TUB_SCROLLTIMING;
+}
+
+static void
+tty3270_scl_timeout(unsigned long data)
+{
+	tub_t *tubp = (void *)data;
+	int flags;
+
+	TUBLOCK(tubp->irq, flags);
+	tubp->stat = TBS_RUNNING;
+	tty3270_scl_resettimer(tubp);
+	tubp->cmd = TBC_CLRUPDLOG;
+	tty3270_build(tubp);
+	TUBUNLOCK(tubp->irq, flags);
+}
+
+int
+tty3270_scl_set(tub_t *tubp, char *buf, int count)
+{
+	if (strncmp(buf, "scrolltime=", 11) == 0) {
+		tubp->tty_scrolltime =
+			simple_strtoul(buf + 11, 0, 0);
+		return count;
+	}
+	return 0;
+}
+
+int
+tty3270_scl_init(tub_t *tubp)
+{
+	extern int tubscrollparm;
+
+	tubp->tty_scrolltime = tubscrollparm;
+	if (tubp->tty_scrolltime < 0)
+		tubp->tty_scrolltime = DEFAULT_SCROLLTIME;
+	return 0;
+}
+
+void
+tty3270_scl_fini(tub_t *tubp)
+{
+	if ((tubp->flags & TUB_OPEN_STET) == 0)
+		tty3270_scl_resettimer(tubp);
+}