Commit 05bfd70b authored by Martin Schwidefsky's avatar Martin Schwidefsky
Browse files

s390/3270: redraw screen on unsolicited device end 



If a 3270 terminal is disconnected and later reconnected again,
it gets an unsolicited device end. This is currently ignored and
you have to hit the clear key to get the screen redrawn.
Add an automatic full redraw of the screen for this case.

Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 42cfc6b5

drivers/s390/char/con3270.c

+4 −0
Original line number Diff line number Diff line
@@ -413,6 +413,10 @@ con3270_irq(struct con3270 *cp, struct raw3270_request *rq, struct irb *irb) 
		else

			/* Normal end. Copy residual count. */

			rq->rescnt = irb->scsw.cmd.count;

	} else if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) {

		/* Interrupt without an outstanding request -> update all */

		cp->update_flags = CON_UPDATE_ALL;

		con3270_set_timer(cp, 1);

	}

	return RAW3270_IO_DONE;

}

drivers/s390/char/tty3270.c

+4 −0
Original line number Diff line number Diff line
@@ -659,6 +659,10 @@ tty3270_irq(struct tty3270 *tp, struct raw3270_request *rq, struct irb *irb) 
		else

			/* Normal end. Copy residual count. */

			rq->rescnt = irb->scsw.cmd.count;

	} else if (irb->scsw.cmd.dstat & DEV_STAT_DEV_END) {

		/* Interrupt without an outstanding request -> update all */

		tp->update_flags = TTY_UPDATE_ALL;

		tty3270_set_timer(tp, 1);

	}

	return RAW3270_IO_DONE;

}

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