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authorMartin Schwidefsky <schwidefsky@de.ibm.com>2015-08-19 16:50:10 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2015-08-26 17:19:49 +0200
commit05bfd70bcdd3cd12c061cb77b73a11ba6f87379d (patch)
tree3de2be35516de728b2d9da5aefe91f34c0b23121 /drivers/s390/char/con3270.c
parent42cfc6b590c5eb7ae3c1de89594f8f2193ecbc97 (diff)
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: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/char/con3270.c')
-rw-r--r--drivers/s390/char/con3270.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 75ffe9980c3e..7c511add5aa7 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -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;
}