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| author |   Sven Schnelle <svens@linux.ibm.com> | 2022-12-05 12:32:02 +0100 |
|---|---|---|
| committer |   Heiko Carstens <hca@linux.ibm.com> | 2023-01-09 14:34:05 +0100 |
| commit | a554dbd740bd45247a7b9617760f1c7e1b26ebfc (patch) | |
| tree | 45abee0f70308139f4d1dfa3d030f62509408dff /drivers/s390/char | |
| parent | s390/fs3270: fix function prototypes (diff) | |
| download | wireguard-linux-a554dbd740bd45247a7b9617760f1c7e1b26ebfc.tar.xz wireguard-linux-a554dbd740bd45247a7b9617760f1c7e1b26ebfc.zip | |
s390/fs3270: fix screen reset on activate
fs3270 uses EWRITEA to clear the screen when a user opens /dev/3270/tub.
However it misses the attribute byte after the EWRITEA, so (at least)
x3270 complains about 'Record too short, missing write flags'.
Add the missing flag byte to fix this.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers/s390/char')
| -rw-r--r-- | drivers/s390/char/fs3270.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 7975dbea8d1b..aff38db1aa40 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -122,16 +122,19 @@ static int fs3270_activate(struct raw3270_view *view) if (!raw3270_request_final(fp->init)) return 0; + raw3270_request_set_cmd(fp->init, TC_EWRITEA); + raw3270_request_set_idal(fp->init, fp->rdbuf); + fp->init->rescnt = 0; + cp = fp->rdbuf->data[0]; if (fp->rdbuf_size == 0) { /* No saved buffer. Just clear the screen. */ - raw3270_request_set_cmd(fp->init, TC_EWRITEA); + fp->init->ccw.count = 1; fp->init->callback = fs3270_reset_callback; + cp[0] = 0; } else { /* Restore fullscreen buffer saved by fs3270_deactivate. */ - raw3270_request_set_cmd(fp->init, TC_EWRITEA); - raw3270_request_set_idal(fp->init, fp->rdbuf); fp->init->ccw.count = fp->rdbuf_size; - cp = fp->rdbuf->data[0]; + fp->init->callback = fs3270_restore_callback; cp[0] = TW_KR; cp[1] = TO_SBA; cp[2] = cp[6]; @@ -140,8 +143,6 @@ static int fs3270_activate(struct raw3270_view *view) cp[5] = TO_SBA; cp[6] = 0x40; cp[7] = 0x40; - fp->init->rescnt = 0; - fp->init->callback = fs3270_restore_callback; } rc = raw3270_start_locked(view, fp->init); fp->init->rc = rc; |